From 0cc8c27a3543b63677f1ac947d404bcda47b26e2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 3 Aug 2017 09:13:29 +0800
Subject: [PATCH 001/911] chore: update backers

---
 BACKERS.md | 37 +++++++++++++++++++++++++++++++------
 README.md  | 12 ++++++------
 2 files changed, 37 insertions(+), 12 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index dcc65e995fd..fd8d3c91e45 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -12,8 +12,8 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 
 ### $1000
 
-<a href="https://www.upyun.com/?utm_source=vue&utm_medium=ad&utm_content=github">
-  <img width="400px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/upyun-large.png">
+<a href="https://xiaozhuanlan.com">
+  <img width="400px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
 </a>
 
 ---
@@ -48,10 +48,6 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
   <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
 </a>
 <br><br>
-<a href="https://www.trisoft.ro/" target="_blank">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/trisoft.png">
-</a>
-<br><br>
 <a href="https://www.2mhost.com/" target="_blank">
   <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
 </a>
@@ -71,6 +67,16 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 <a href="https://component.io/" target="_blank">
   <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
 </a>
+<br><br>
+<a href="https://www.v2ex.com/t/379389" target="_blank">
+  <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
+</a>
+
+---
+
+### $250
+
+- Matt Mullenweg
 
 ---
 
@@ -114,6 +120,7 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 - Wasim Khamlichi
 - errorrik
 - Alex Balashov
+- Konstantin Levinski
 
 ---
 
@@ -263,3 +270,21 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 - Jon Hobbs-Smith
 - Chez Tschetter
 - Akiho Nagao
+- Alexander Karelas
+- Asaf Yishai
+- Diana Espino
+- Alexandre Madurell
+- alxs
+- Anthony Estebe
+- Haim Yulzari
+- Blake Campbell
+- David McGuigan
+- Niklas Wallentin
+- Jeremy Tan
+- Jim Raden
+- Luka Savic
+- IMGNRY
+- Pascal Germain
+- Raphaël Saunier
+- Kirk Lewis
+- Nicholas Reid
diff --git a/README.md b/README.md
index 47a52bba434..1539a3a9357 100644
--- a/README.md
+++ b/README.md
@@ -22,8 +22,8 @@ Vue.js is an MIT-licensed open source project. Its ongoing development is made p
     <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
   <br><br>
-  <a href="https://www.upyun.com/?utm_source=vue&utm_medium=ad&utm_content=github">
-    <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/upyun-small.png">
+  <a href="https://xiaozhuanlan.com">
+    <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
   </a>
   <br><br>
   <a href="https://deepstreamhub.com" target="_blank">
@@ -54,10 +54,6 @@ Vue.js is an MIT-licensed open source project. Its ongoing development is made p
     <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
   </a>
   <br><br>
-  <a href="https://www.trisoft.ro/" target="_blank">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/trisoft.png">
-  </a>
-  <br><br>
   <a href="https://www.2mhost.com/" target="_blank">
     <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
   </a>
@@ -77,6 +73,10 @@ Vue.js is an MIT-licensed open source project. Its ongoing development is made p
   <a href="https://component.io/" target="_blank">
     <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
   </a>
+  <br><br>
+  <a href="https://www.v2ex.com/t/379389" target="_blank">
+    <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
+  </a>
 </p>
 
 ## Intro

From b5cc8b9e935897184ac43119bf5fbeca606f4b6a Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 24 Jul 2017 19:32:38 +0800
Subject: [PATCH 002/911] [release] weex-vue-framework@2.4.2-weex.1 (#6196)

* build(release weex): ignore the file path of entries

* [release] weex-vue-framework@2.4.2-weex.1
---
 build/release-weex.sh                        |    1 -
 packages/weex-template-compiler/build.js     | 1146 ++++++++++++++----
 packages/weex-template-compiler/package.json |    2 +-
 packages/weex-vue-framework/factory.js       |  692 ++++++++---
 packages/weex-vue-framework/index.js         |  287 +++--
 packages/weex-vue-framework/package.json     |    2 +-
 6 files changed, 1610 insertions(+), 520 deletions(-)

diff --git a/build/release-weex.sh b/build/release-weex.sh
index 77ce1d0abf6..3bb5412dd4f 100644
--- a/build/release-weex.sh
+++ b/build/release-weex.sh
@@ -31,7 +31,6 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
   cd -
 
   # commit
-  git add src/entries/weex*
   git add packages/weex*
   git commit -m "[release] weex-vue-framework@$NEXT_VERSION"
 fi
diff --git a/packages/weex-template-compiler/build.js b/packages/weex-template-compiler/build.js
index 9f3fc688040..e590d002c7d 100644
--- a/packages/weex-template-compiler/build.js
+++ b/packages/weex-template-compiler/build.js
@@ -2,7 +2,9 @@
 
 Object.defineProperty(exports, '__esModule', { value: true });
 
-var he = require('he');
+function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
+
+var he = _interopDefault(require('he'));
 
 /*  */
 
@@ -14,6 +16,8 @@ var he = require('he');
 
 
 
+
+
 /**
  * Check if value is primitive
  */
@@ -24,15 +28,29 @@ var he = require('he');
  * Objects from primitive values when we know the value
  * is a JSON-compliant type.
  */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
 
+var _toString = Object.prototype.toString;
 
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
  */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
 
 
 
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(val);
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
 
 /**
  * Convert a value to a string that is actually rendered.
@@ -69,11 +87,29 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Remove an item from an array
+ * Check if a attribute is a reserved attribute.
  */
+var isReservedAttribute = makeMap('key,ref,slot,is');
 
+/**
+ * Remove an item from an array
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    var index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
 
-
+/**
+ * Check whether the object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
 
 /**
  * Create a cached version of a pure function.
@@ -128,13 +164,15 @@ function extend (to, _from) {
 
 /**
  * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
  */
-function noop () {}
+function noop (a, b, c) {}
 
 /**
  * Always return false.
  */
-var no = function () { return false; };
+var no = function (a, b, c) { return false; };
 
 /**
  * Return same value
@@ -243,6 +281,10 @@ var decodingMap = {
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
 var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
 
+// #5992
+var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
 function decodeAttr (value, shouldDecodeNewlines) {
   var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
   return value.replace(re, function (match) { return decodingMap[match]; })
@@ -266,6 +308,9 @@ function parseHTML (html, options) {
           var commentEnd = html.indexOf('-->');
 
           if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd));
+            }
             advance(commentEnd + 3);
             continue
           }
@@ -301,24 +346,27 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
+          if (shouldIgnoreFirstNewline(lastTag, html)) {
+            advance(1);
+          }
           continue
         }
       }
 
-      var text = (void 0), rest$1 = (void 0), next = (void 0);
+      var text = (void 0), rest = (void 0), next = (void 0);
       if (textEnd >= 0) {
-        rest$1 = html.slice(textEnd);
+        rest = html.slice(textEnd);
         while (
-          !endTag.test(rest$1) &&
-          !startTagOpen.test(rest$1) &&
-          !comment.test(rest$1) &&
-          !conditionalComment.test(rest$1)
+          !endTag.test(rest) &&
+          !startTagOpen.test(rest) &&
+          !comment.test(rest) &&
+          !conditionalComment.test(rest)
         ) {
           // < in plain text, be forgiving and treat it as text
-          next = rest$1.indexOf('<', 1);
+          next = rest.indexOf('<', 1);
           if (next < 0) { break }
           textEnd += next;
-          rest$1 = html.slice(textEnd);
+          rest = html.slice(textEnd);
         }
         text = html.substring(0, textEnd);
         advance(textEnd);
@@ -333,23 +381,26 @@ function parseHTML (html, options) {
         options.chars(text);
       }
     } else {
+      var endTagLength = 0;
       var stackedTag = lastTag.toLowerCase();
       var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var endTagLength = 0;
-      var rest = html.replace(reStackedTag, function (all, text, endTag) {
+      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
             .replace(/<!--([\s\S]*?)-->/g, '$1')
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
+        if (shouldIgnoreFirstNewline(stackedTag, text)) {
+          text = text.slice(1);
+        }
         if (options.chars) {
           options.chars(text);
         }
         return ''
       });
-      index += html.length - rest.length;
-      html = rest;
+      index += html.length - rest$1.length;
+      html = rest$1;
       parseEndTag(stackedTag, index - endTagLength, index);
     }
 
@@ -406,7 +457,7 @@ function parseHTML (html, options) {
       }
     }
 
-    var unary = isUnaryTag$$1(tagName) || tagName === 'html' && lastTag === 'head' || !!unarySlash;
+    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
 
     var l = match.attrs.length;
     var attrs = new Array(l);
@@ -463,8 +514,9 @@ function parseHTML (html, options) {
       // Close all the open elements, up the stack
       for (var i = stack.length - 1; i >= pos; i--) {
         if (process.env.NODE_ENV !== 'production' &&
-            (i > pos || !tagName) &&
-            options.warn) {
+          (i > pos || !tagName) &&
+          options.warn
+        ) {
           options.warn(
             ("tag <" + (stack[i].tag) + "> has no matching end tag.")
           );
@@ -674,10 +726,7 @@ function genAssignmentCode (
   if (modelRs.idx === null) {
     return (value + "=" + assignment)
   } else {
-    return "var $$exp = " + (modelRs.exp) + ", $$idx = " + (modelRs.idx) + ";" +
-      "if (!Array.isArray($$exp)){" +
-        value + "=" + assignment + "}" +
-      "else{$$exp.splice($$idx, 1, " + assignment + ")}"
+    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
   }
 }
 
@@ -770,6 +819,12 @@ function parseString (chr) {
   }
 }
 
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
 var LIFECYCLE_HOOKS = [
   'beforeCreate',
   'created',
@@ -816,6 +871,11 @@ var config = ({
    */
   errorHandler: null,
 
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
   /**
    * Ignore certain custom elements
    */
@@ -866,9 +926,11 @@ var config = ({
   _lifecycleHooks: LIFECYCLE_HOOKS
 });
 
+/*  */
+
 var warn$1 = noop;
 var tip = noop;
-var formatComponentName;
+var formatComponentName = (null); // work around flow check
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -878,10 +940,12 @@ if (process.env.NODE_ENV !== 'production') {
     .replace(/[-_]/g, ''); };
 
   warn$1 = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.error("[Vue warn]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
     }
   };
 
@@ -957,6 +1021,8 @@ if (process.env.NODE_ENV !== 'production') {
   };
 }
 
+/*  */
+
 function handleError (err, vm, info) {
   if (config.errorHandler) {
     config.errorHandler.call(null, err, vm, info);
@@ -977,7 +1043,7 @@ function handleError (err, vm, info) {
 /* globals MutationObserver */
 
 // can we use __proto__?
-
+var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
@@ -989,6 +1055,9 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
+// Firefix has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
 var supportsPassive = false;
 if (inBrowser) {
   try {
@@ -998,7 +1067,7 @@ if (inBrowser) {
         /* istanbul ignore next */
         supportsPassive = true;
       }
-    } )); // https://github.com/facebook/flow/issues/285
+    })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
   } catch (e) {}
 }
@@ -1292,12 +1361,15 @@ function parse (
   options
 ) {
   warn = options.warn || baseWarn;
-  platformGetTagNamespace = options.getTagNamespace || no;
-  platformMustUseProp = options.mustUseProp || no;
+
   platformIsPreTag = options.isPreTag || no;
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
+
   transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
   postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
   delimiters = options.delimiters;
 
   var stack = [];
@@ -1331,6 +1403,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
       // inherit parent ns if there is one
@@ -1489,8 +1562,9 @@ function parse (
       // IE textarea placeholder bug
       /* istanbul ignore if */
       if (isIE &&
-          currentParent.tag === 'textarea' &&
-          currentParent.attrsMap.placeholder === text) {
+        currentParent.tag === 'textarea' &&
+        currentParent.attrsMap.placeholder === text
+      ) {
         return
       }
       var children = currentParent.children;
@@ -1513,6 +1587,13 @@ function parse (
           });
         }
       }
+    },
+    comment: function comment (text) {
+      currentParent.children.push({
+        type: 3,
+        text: text,
+        isComment: true
+      });
     }
   });
   return root
@@ -1714,7 +1795,9 @@ function processAttrs (el) {
             );
           }
         }
-        if (isProp || platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        if (isProp || (
+          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+        )) {
           addProp(el, name, value);
         } else {
           addAttr(el, name, value);
@@ -1889,6 +1972,15 @@ function markStatic (node) {
         node.static = false;
       }
     }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        var block = node.ifConditions[i$1].block;
+        markStatic(block);
+        if (!block.static) {
+          node.static = false;
+        }
+      }
+    }
   }
 }
 
@@ -1915,17 +2007,13 @@ function markStaticRoots (node, isInFor) {
       }
     }
     if (node.ifConditions) {
-      walkThroughConditionsBlocks(node.ifConditions, isInFor);
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        markStaticRoots(node.ifConditions[i$1].block, isInFor);
+      }
     }
   }
 }
 
-function walkThroughConditionsBlocks (conditionBlocks, isInFor) {
-  for (var i = 1, len = conditionBlocks.length; i < len; i++) {
-    markStaticRoots(conditionBlocks[i].block, isInFor);
-  }
-}
-
 function isStatic (node) {
   if (node.type === 2) { // expression
     return false
@@ -1994,17 +2082,17 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  native,
+  isNative,
   warn
 ) {
-  var res = native ? 'nativeOn:{' : 'on:{';
+  var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
     var handler = events[name];
     // #5330: warn click.right, since right clicks do not actually fire click events.
     if (process.env.NODE_ENV !== 'production' &&
-        name === 'click' &&
-        handler && handler.modifiers && handler.modifiers.right
-      ) {
+      name === 'click' &&
+      handler && handler.modifiers && handler.modifiers.right
+    ) {
       warn(
         "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
         "do not actually fire \"click\" events."
@@ -2080,99 +2168,639 @@ function genFilterCode (key) {
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
+/**
+ * Check if a string starts with $ or _
+ */
+
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/*  */
+
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+  this.id = uid++;
+  this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+  this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+  remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+  if (Dep.target) {
+    Dep.target.addDep(this);
+  }
+};
+
+Dep.prototype.notify = function notify () {
+  // stabilize the subscriber list first
+  var subs = this.subs.slice();
+  for (var i = 0, l = subs.length; i < l; i++) {
+    subs[i].update();
+  }
+};
+
+// the current target watcher being evaluated.
+// this is globally unique because there could be only one
+// watcher being evaluated at any time.
+Dep.target = null;
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);[
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+]
+.forEach(function (method) {
+  // cache original method
+  var original = arrayProto[method];
+  def(arrayMethods, method, function mutator () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    var result = original.apply(this, args);
+    var ob = this.__ob__;
+    var inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) { ob.observeArray(inserted); }
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * By default, when a reactive property is set, the new value is
+ * also converted to become reactive. However when passing down props,
+ * we don't want to force conversion because the value may be a nested value
+ * under a frozen data structure. Converting it would defeat the optimization.
+ */
+var observerState = {
+  shouldConvert: true
+};
+
+/**
+ * Observer class that are attached to each observed
+ * object. Once attached, the observer converts target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatches updates.
+ */
+var Observer = function Observer (value) {
+  this.value = value;
+  this.dep = new Dep();
+  this.vmCount = 0;
+  def(value, '__ob__', this);
+  if (Array.isArray(value)) {
+    var augment = hasProto
+      ? protoAugment
+      : copyAugment;
+    augment(value, arrayMethods, arrayKeys);
+    this.observeArray(value);
+  } else {
+    this.walk(value);
+  }
+};
+
+/**
+ * Walk through each property and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+  var keys = Object.keys(obj);
+  for (var i = 0; i < keys.length; i++) {
+    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+  }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+  for (var i = 0, l = items.length; i < l; i++) {
+    observe(items[i]);
+  }
+};
+
+// helpers
+
+/**
+ * Augment an target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src, keys) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment an target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (var i = 0, l = keys.length; i < l; i++) {
+    var key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value)) {
+    return
+  }
+  var ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    observerState.shouldConvert &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive$$1 (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  var dep = new Dep();
+
+  var property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  var getter = property && property.get;
+  var setter = property && property.set;
+
+  var childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      var value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+        }
+        if (Array.isArray(value)) {
+          dependArray(value);
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      var value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if (process.env.NODE_ENV !== 'production' && customSetter) {
+        customSetter();
+      }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (hasOwn(target, key)) {
+    target[key] = val;
+    return val
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    process.env.NODE_ENV !== 'production' && warn$1(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive$$1(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+if (process.env.NODE_ENV !== 'production') {
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn$1(
+        "option \"" + key + "\" can only be used during instance " +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) { return to }
+  var key, toVal, fromVal;
+  var keys = Object.keys(from);
+  for (var i = 0; i < keys.length; i++) {
+    key = keys[i];
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+      )
+    }
+  } else if (parentVal || childVal) {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      var instanceData = typeof childVal === 'function'
+        ? childVal.call(vm)
+        : childVal;
+      var defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm)
+        : undefined;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      process.env.NODE_ENV !== 'production' && warn$1(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn.call(this, parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  return childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (parentVal, childVal) {
+  var res = Object.create(parentVal || null);
+  return childVal
+    ? extend(res, childVal)
+    : res
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (parentVal, childVal) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
+  /* istanbul ignore if */
+  if (!childVal) { return Object.create(parentVal || null) }
+  if (!parentVal) { return childVal }
+  var ret = {};
+  extend(ret, parentVal);
+  for (var key in childVal) {
+    var parent = ret[key];
+    var child = childVal[key];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (parentVal, childVal) {
+  if (!parentVal) { return childVal }
+  var ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) { extend(ret, childVal); }
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+
+/*  */
+
+/*  */
+
+/*  */
+
+function on (el, dir) {
+  if (process.env.NODE_ENV !== 'production' && dir.modifiers) {
+    warn$1("v-on without argument does not support modifiers.");
+  }
+  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
+}
+
+/*  */
+
 function bind$1 (el, dir) {
   el.wrapData = function (code) {
-    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + (dir.modifiers && dir.modifiers.prop ? ',true' : '') + ")")
+    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
   };
 }
 
 /*  */
 
 var baseDirectives = {
+  on: on,
   bind: bind$1,
   cloak: noop
 };
 
 /*  */
 
-// configurable state
-var warn$2;
-var transforms$1;
-var dataGenFns;
-var platformDirectives;
-var isPlatformReservedTag$1;
-var staticRenderFns;
-var onceCount;
-var currentOptions;
+var CodegenState = function CodegenState (options) {
+  this.options = options;
+  this.warn = options.warn || baseWarn;
+  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+  this.directives = extend(extend({}, baseDirectives), options.directives);
+  var isReservedTag = options.isReservedTag || no;
+  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.onceId = 0;
+  this.staticRenderFns = [];
+};
+
+
 
 function generate (
   ast,
   options
 ) {
-  // save previous staticRenderFns so generate calls can be nested
-  var prevStaticRenderFns = staticRenderFns;
-  var currentStaticRenderFns = staticRenderFns = [];
-  var prevOnceCount = onceCount;
-  onceCount = 0;
-  currentOptions = options;
-  warn$2 = options.warn || baseWarn;
-  transforms$1 = pluckModuleFunction(options.modules, 'transformCode');
-  dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  platformDirectives = options.directives || {};
-  isPlatformReservedTag$1 = options.isReservedTag || no;
-  var code = ast ? genElement(ast) : '_c("div")';
-  staticRenderFns = prevStaticRenderFns;
-  onceCount = prevOnceCount;
+  var state = new CodegenState(options);
+  var code = ast ? genElement(ast, state) : '_c("div")';
   return {
     render: ("with(this){return " + code + "}"),
-    staticRenderFns: currentStaticRenderFns
+    staticRenderFns: state.staticRenderFns
   }
 }
 
-function genElement (el) {
+function genElement (el, state) {
   if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el)
+    return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
-    return genOnce(el)
+    return genOnce(el, state)
   } else if (el.for && !el.forProcessed) {
-    return genFor(el)
+    return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
-    return genIf(el)
+    return genIf(el, state)
   } else if (el.tag === 'template' && !el.slotTarget) {
-    return genChildren(el) || 'void 0'
+    return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
-    return genSlot(el)
+    return genSlot(el, state)
   } else {
     // component or element
     var code;
     if (el.component) {
-      code = genComponent(el.component, el);
+      code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData(el);
+      var data = el.plain ? undefined : genData(el, state);
 
-      var children = el.inlineTemplate ? null : genChildren(el, true);
+      var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
     }
     // module transforms
-    for (var i = 0; i < transforms$1.length; i++) {
-      code = transforms$1[i](el, code);
+    for (var i = 0; i < state.transforms.length; i++) {
+      code = state.transforms[i](el, code);
     }
     return code
   }
 }
 
 // hoist static sub-trees out
-function genStatic (el) {
+function genStatic (el, state) {
   el.staticProcessed = true;
-  staticRenderFns.push(("with(this){return " + (genElement(el)) + "}"));
-  return ("_m(" + (staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
-function genOnce (el) {
+function genOnce (el, state) {
   el.onceProcessed = true;
   if (el.if && !el.ifProcessed) {
-    return genIf(el)
+    return genIf(el, state)
   } else if (el.staticInFor) {
     var key = '';
     var parent = el.parent;
@@ -2184,51 +2812,72 @@ function genOnce (el) {
       parent = parent.parent;
     }
     if (!key) {
-      process.env.NODE_ENV !== 'production' && warn$2(
+      process.env.NODE_ENV !== 'production' && state.warn(
         "v-once can only be used inside v-for that is keyed. "
       );
-      return genElement(el)
+      return genElement(el, state)
     }
-    return ("_o(" + (genElement(el)) + "," + (onceCount++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
   } else {
-    return genStatic(el)
+    return genStatic(el, state)
   }
 }
 
-function genIf (el) {
+function genIf (
+  el,
+  state,
+  altGen,
+  altEmpty
+) {
   el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice())
+  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
 }
 
-function genIfConditions (conditions) {
+function genIfConditions (
+  conditions,
+  state,
+  altGen,
+  altEmpty
+) {
   if (!conditions.length) {
-    return '_e()'
+    return altEmpty || '_e()'
   }
 
   var condition = conditions.shift();
   if (condition.exp) {
-    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions)))
+    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
   } else {
     return ("" + (genTernaryExp(condition.block)))
   }
 
   // v-if with v-once should generate code like (a)?_m(0):_m(1)
   function genTernaryExp (el) {
-    return el.once ? genOnce(el) : genElement(el)
+    return altGen
+      ? altGen(el, state)
+      : el.once
+        ? genOnce(el, state)
+        : genElement(el, state)
   }
 }
 
-function genFor (el) {
+function genFor (
+  el,
+  state,
+  altGen,
+  altHelper
+) {
   var exp = el.for;
   var alias = el.alias;
   var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
   var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
 
-  if (
-    process.env.NODE_ENV !== 'production' &&
-    maybeComponent(el) && el.tag !== 'slot' && el.tag !== 'template' && !el.key
+  if (process.env.NODE_ENV !== 'production' &&
+    state.maybeComponent(el) &&
+    el.tag !== 'slot' &&
+    el.tag !== 'template' &&
+    !el.key
   ) {
-    warn$2(
+    state.warn(
       "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
       "v-for should have explicit keys. " +
       "See https://vuejs.org/guide/list.html#key for more info.",
@@ -2237,18 +2886,18 @@ function genFor (el) {
   }
 
   el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
+  return (altHelper || '_l') + "((" + exp + ")," +
     "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genElement(el)) +
+      "return " + ((altGen || genElement)(el, state)) +
     '})'
 }
 
-function genData (el) {
+function genData (el, state) {
   var data = '{';
 
   // directives first.
   // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el);
+  var dirs = genDirectives(el, state);
   if (dirs) { data += dirs + ','; }
 
   // key
@@ -2271,8 +2920,8 @@ function genData (el) {
     data += "tag:\"" + (el.tag) + "\",";
   }
   // module data generation functions
-  for (var i = 0; i < dataGenFns.length; i++) {
-    data += dataGenFns[i](el);
+  for (var i = 0; i < state.dataGenFns.length; i++) {
+    data += state.dataGenFns[i](el);
   }
   // attributes
   if (el.attrs) {
@@ -2284,10 +2933,10 @@ function genData (el) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, warn$2)) + ",";
+    data += (genHandlers(el.events, false, state.warn)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, warn$2)) + ",";
+    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
   if (el.slotTarget) {
@@ -2295,7 +2944,7 @@ function genData (el) {
   }
   // scoped slots
   if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots)) + ",";
+    data += (genScopedSlots(el.scopedSlots, state)) + ",";
   }
   // component v-model
   if (el.model) {
@@ -2303,7 +2952,7 @@ function genData (el) {
   }
   // inline-template
   if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el);
+    var inlineTemplate = genInlineTemplate(el, state);
     if (inlineTemplate) {
       data += inlineTemplate + ",";
     }
@@ -2313,10 +2962,14 @@ function genData (el) {
   if (el.wrapData) {
     data = el.wrapData(data);
   }
+  // v-on data wrap
+  if (el.wrapListeners) {
+    data = el.wrapListeners(data);
+  }
   return data
 }
 
-function genDirectives (el) {
+function genDirectives (el, state) {
   var dirs = el.directives;
   if (!dirs) { return }
   var res = 'directives:[';
@@ -2325,11 +2978,11 @@ function genDirectives (el) {
   for (i = 0, l = dirs.length; i < l; i++) {
     dir = dirs[i];
     needRuntime = true;
-    var gen = platformDirectives[dir.name] || baseDirectives[dir.name];
+    var gen = state.directives[dir.name];
     if (gen) {
       // compile-time directive that manipulates AST.
       // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, warn$2);
+      needRuntime = !!gen(el, dir, state.warn);
     }
     if (needRuntime) {
       hasRuntime = true;
@@ -2341,43 +2994,81 @@ function genDirectives (el) {
   }
 }
 
-function genInlineTemplate (el) {
+function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if (process.env.NODE_ENV !== 'production' && (
     el.children.length > 1 || ast.type !== 1
   )) {
-    warn$2('Inline-template components must have exactly one child element.');
+    state.warn('Inline-template components must have exactly one child element.');
   }
   if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, currentOptions);
+    var inlineRenderFns = generate(ast, state.options);
     return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
   }
 }
 
-function genScopedSlots (slots) {
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) { return genScopedSlot(key, slots[key]); }).join(',')) + "])")
+function genScopedSlots (
+  slots,
+  state
+) {
+  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+      return genScopedSlot(key, slots[key], state)
+    }).join(',')) + "])")
 }
 
-function genScopedSlot (key, el) {
-  return "[" + key + ",function(" + (String(el.attrsMap.scope)) + "){" +
+function genScopedSlot (
+  key,
+  el,
+  state
+) {
+  if (el.for && !el.forProcessed) {
+    return genForScopedSlot(key, el, state)
+  }
+  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el) || 'void 0'
-      : genElement(el)) + "}]"
+      ? genChildren(el, state) || 'void 0'
+      : genElement(el, state)) + "}}"
 }
 
-function genChildren (el, checkSkip) {
+function genForScopedSlot (
+  key,
+  el,
+  state
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+  el.forProcessed = true; // avoid recursion
+  return "_l((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + (genScopedSlot(key, el, state)) +
+    '})'
+}
+
+function genChildren (
+  el,
+  state,
+  checkSkip,
+  altGenElement,
+  altGenNode
+) {
   var children = el.children;
   if (children.length) {
     var el$1 = children[0];
     // optimize single v-for
     if (children.length === 1 &&
-        el$1.for &&
-        el$1.tag !== 'template' &&
-        el$1.tag !== 'slot') {
-      return genElement(el$1)
+      el$1.for &&
+      el$1.tag !== 'template' &&
+      el$1.tag !== 'slot'
+    ) {
+      return (altGenElement || genElement)(el$1, state)
     }
-    var normalizationType = checkSkip ? getNormalizationType(children) : 0;
-    return ("[" + (children.map(genNode).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    var normalizationType = checkSkip
+      ? getNormalizationType(children, state.maybeComponent)
+      : 0;
+    var gen = altGenNode || genNode;
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
   }
 }
 
@@ -2385,7 +3076,10 @@ function genChildren (el, checkSkip) {
 // 0: no normalization needed
 // 1: simple normalization needed (possible 1-level deep nested array)
 // 2: full normalization needed
-function getNormalizationType (children) {
+function getNormalizationType (
+  children,
+  maybeComponent
+) {
   var res = 0;
   for (var i = 0; i < children.length; i++) {
     var el = children[i];
@@ -2409,13 +3103,11 @@ function needsNormalization (el) {
   return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
 }
 
-function maybeComponent (el) {
-  return !isPlatformReservedTag$1(el.tag)
-}
-
-function genNode (node) {
+function genNode (node, state) {
   if (node.type === 1) {
-    return genElement(node)
+    return genElement(node, state)
+  } if (node.type === 3 && node.isComment) {
+    return genComment(node)
   } else {
     return genText(node)
   }
@@ -2427,9 +3119,13 @@ function genText (text) {
     : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
 }
 
-function genSlot (el) {
+function genComment (comment) {
+  return ("_e(" + (JSON.stringify(comment.text)) + ")")
+}
+
+function genSlot (el, state) {
   var slotName = el.slotName || '"default"';
-  var children = genChildren(el);
+  var children = genChildren(el, state);
   var res = "_t(" + slotName + (children ? ("," + children) : '');
   var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
   var bind$$1 = el.attrsMap['v-bind'];
@@ -2446,9 +3142,13 @@ function genSlot (el) {
 }
 
 // componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (componentName, el) {
-  var children = el.inlineTemplate ? null : genChildren(el, true);
-  return ("_c(" + componentName + "," + (genData(el)) + (children ? ("," + children) : '') + ")")
+function genComponent (
+  componentName,
+  el,
+  state
+) {
+  var children = el.inlineTemplate ? null : genChildren(el, state, true);
+  return ("_c(" + componentName + "," + (genData(el, state)) + (children ? ("," + children) : '') + ")")
 }
 
 function genProps (props) {
@@ -2566,21 +3266,7 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
-function baseCompile (
-  template,
-  options
-) {
-  var ast = parse(template.trim(), options);
-  optimize(ast, options);
-  var code = generate(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
-  }
-}
-
-function makeFunction (code, errors) {
+function createFunction (code, errors) {
   try {
     return new Function(code)
   } catch (err) {
@@ -2589,50 +3275,10 @@ function makeFunction (code, errors) {
   }
 }
 
-function createCompiler (baseOptions) {
-  var functionCompileCache = Object.create(null);
-
-  function compile (
-    template,
-    options
-  ) {
-    var finalOptions = Object.create(baseOptions);
-    var errors = [];
-    var tips = [];
-    finalOptions.warn = function (msg, tip$$1) {
-      (tip$$1 ? tips : errors).push(msg);
-    };
-
-    if (options) {
-      // merge custom modules
-      if (options.modules) {
-        finalOptions.modules = (baseOptions.modules || []).concat(options.modules);
-      }
-      // merge custom directives
-      if (options.directives) {
-        finalOptions.directives = extend(
-          Object.create(baseOptions.directives),
-          options.directives
-        );
-      }
-      // copy other options
-      for (var key in options) {
-        if (key !== 'modules' && key !== 'directives') {
-          finalOptions[key] = options[key];
-        }
-      }
-    }
-
-    var compiled = baseCompile(template, finalOptions);
-    if (process.env.NODE_ENV !== 'production') {
-      errors.push.apply(errors, detectErrors(compiled.ast));
-    }
-    compiled.errors = errors;
-    compiled.tips = tips;
-    return compiled
-  }
+function createCompileToFunctionFn (compile) {
+  var cache = Object.create(null);
 
-  function compileToFunctions (
+  return function compileToFunctions (
     template,
     options,
     vm
@@ -2661,8 +3307,8 @@ function createCompiler (baseOptions) {
     var key = options.delimiters
       ? String(options.delimiters) + template
       : template;
-    if (functionCompileCache[key]) {
-      return functionCompileCache[key]
+    if (cache[key]) {
+      return cache[key]
     }
 
     // compile
@@ -2685,12 +3331,10 @@ function createCompiler (baseOptions) {
     // turn code into functions
     var res = {};
     var fnGenErrors = [];
-    res.render = makeFunction(compiled.render, fnGenErrors);
-    var l = compiled.staticRenderFns.length;
-    res.staticRenderFns = new Array(l);
-    for (var i = 0; i < l; i++) {
-      res.staticRenderFns[i] = makeFunction(compiled.staticRenderFns[i], fnGenErrors);
-    }
+    res.render = createFunction(compiled.render, fnGenErrors);
+    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+      return createFunction(code, fnGenErrors)
+    });
 
     // check function generation errors.
     // this should only happen if there is a bug in the compiler itself.
@@ -2711,17 +3355,83 @@ function createCompiler (baseOptions) {
       }
     }
 
-    return (functionCompileCache[key] = res)
+    return (cache[key] = res)
   }
+}
 
-  return {
-    compile: compile,
-    compileToFunctions: compileToFunctions
+/*  */
+
+function createCompilerCreator (baseCompile) {
+  return function createCompiler (baseOptions) {
+    function compile (
+      template,
+      options
+    ) {
+      var finalOptions = Object.create(baseOptions);
+      var errors = [];
+      var tips = [];
+      finalOptions.warn = function (msg, tip) {
+        (tip ? tips : errors).push(msg);
+      };
+
+      if (options) {
+        // merge custom modules
+        if (options.modules) {
+          finalOptions.modules =
+            (baseOptions.modules || []).concat(options.modules);
+        }
+        // merge custom directives
+        if (options.directives) {
+          finalOptions.directives = extend(
+            Object.create(baseOptions.directives),
+            options.directives
+          );
+        }
+        // copy other options
+        for (var key in options) {
+          if (key !== 'modules' && key !== 'directives') {
+            finalOptions[key] = options[key];
+          }
+        }
+      }
+
+      var compiled = baseCompile(template, finalOptions);
+      if (process.env.NODE_ENV !== 'production') {
+        errors.push.apply(errors, detectErrors(compiled.ast));
+      }
+      compiled.errors = errors;
+      compiled.tips = tips;
+      return compiled
+    }
+
+    return {
+      compile: compile,
+      compileToFunctions: createCompileToFunctionFn(compile)
+    }
   }
 }
 
 /*  */
 
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+var createCompiler = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  var ast = parse(template.trim(), options);
+  optimize(ast, options);
+  var code = generate(ast, options);
+  return {
+    ast: ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
 function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
@@ -2860,7 +3570,7 @@ var style = {
 
 var normalize$1 = cached(camelize);
 
-function normalizeKeyName (str)  {
+function normalizeKeyName (str) {
   if (str.match(/^v\-/)) {
     return str.replace(/(v-[a-z\-]+\:)([a-z\-]+)$/i, function ($, directive, prop) {
       return directive + normalize$1(prop)
diff --git a/packages/weex-template-compiler/package.json b/packages/weex-template-compiler/package.json
index 08693d4861e..19c493a216e 100644
--- a/packages/weex-template-compiler/package.json
+++ b/packages/weex-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "weex-template-compiler",
-  "version": "2.1.9-weex.1",
+  "version": "2.4.2-weex.1",
   "description": "Weex template compiler for Vue 2.0",
   "main": "index.js",
   "repository": {
diff --git a/packages/weex-vue-framework/factory.js b/packages/weex-vue-framework/factory.js
index 70ed93943a6..155b38a2db4 100644
--- a/packages/weex-vue-framework/factory.js
+++ b/packages/weex-vue-framework/factory.js
@@ -18,11 +18,19 @@ function isTrue (v) {
   return v === true
 }
 
+function isFalse (v) {
+  return v === false
+}
+
 /**
  * Check if value is primitive
  */
 function isPrimitive (value) {
-  return typeof value === 'string' || typeof value === 'number'
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    typeof value === 'boolean'
+  )
 }
 
 /**
@@ -34,24 +42,32 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
-var toString = Object.prototype.toString;
+var _toString = Object.prototype.toString;
 
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
  */
 function isPlainObject (obj) {
-  return toString.call(obj) === '[object Object]'
+  return _toString.call(obj) === '[object Object]'
 }
 
 function isRegExp (v) {
-  return toString.call(v) === '[object RegExp]'
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(val);
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
 /**
  * Convert a value to a string that is actually rendered.
  */
-function _toString (val) {
+function toString (val) {
   return val == null
     ? ''
     : typeof val === 'object'
@@ -91,6 +107,11 @@ function makeMap (
  */
 var isBuiltInTag = makeMap('slot,component', true);
 
+/**
+ * Check if a attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,is');
+
 /**
  * Remove an item from an array
  */
@@ -203,13 +224,15 @@ function toObject (arr) {
 
 /**
  * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
  */
-function noop () {}
+function noop (a, b, c) {}
 
 /**
  * Always return false.
  */
-var no = function () { return false; };
+var no = function (a, b, c) { return false; };
 
 /**
  * Return same value
@@ -226,14 +249,30 @@ var identity = function (_) { return _; };
  * if they are plain objects, do they have the same shape?
  */
 function looseEqual (a, b) {
+  if (a === b) { return true }
   var isObjectA = isObject(a);
   var isObjectB = isObject(b);
   if (isObjectA && isObjectB) {
     try {
-      return JSON.stringify(a) === JSON.stringify(b)
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
     } catch (e) {
-      // possible circular reference
-      return a === b
+      /* istanbul ignore next */
+      return false
     }
   } else if (!isObjectA && !isObjectB) {
     return String(a) === String(b)
@@ -316,6 +355,11 @@ var config = ({
    */
   errorHandler: null,
 
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
   /**
    * Ignore certain custom elements
    */
@@ -408,9 +452,11 @@ function parsePath (path) {
   }
 }
 
+/*  */
+
 var warn = noop;
 var tip = noop;
-var formatComponentName;
+var formatComponentName = (null); // work around flow check
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -420,10 +466,12 @@ if (process.env.NODE_ENV !== 'production') {
     .replace(/[-_]/g, ''); };
 
   warn = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.error("[Vue warn]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
     }
   };
 
@@ -499,6 +547,8 @@ if (process.env.NODE_ENV !== 'production') {
   };
 }
 
+/*  */
+
 function handleError (err, vm, info) {
   if (config.errorHandler) {
     config.errorHandler.call(null, err, vm, info);
@@ -531,6 +581,9 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
+// Firefix has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
 var supportsPassive = false;
 if (inBrowser) {
   try {
@@ -540,7 +593,7 @@ if (inBrowser) {
         /* istanbul ignore next */
         supportsPassive = true;
       }
-    } )); // https://github.com/facebook/flow/issues/285
+    })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
   } catch (e) {}
 }
@@ -755,22 +808,14 @@ var arrayMethods = Object.create(arrayProto);[
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
-    var arguments$1 = arguments;
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
 
-    // avoid leaking arguments:
-    // http://jsperf.com/closure-with-arguments
-    var i = arguments.length;
-    var args = new Array(i);
-    while (i--) {
-      args[i] = arguments$1[i];
-    }
     var result = original.apply(this, args);
     var ob = this.__ob__;
     var inserted;
     switch (method) {
       case 'push':
-        inserted = args;
-        break
       case 'unshift':
         inserted = args;
         break
@@ -796,8 +841,7 @@ var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
  * under a frozen data structure. Converting it would defeat the optimization.
  */
 var observerState = {
-  shouldConvert: true,
-  isSettingProps: false
+  shouldConvert: true
 };
 
 /**
@@ -849,7 +893,7 @@ Observer.prototype.observeArray = function observeArray (items) {
  * Augment an target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src) {
+function protoAugment (target, src, keys) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
@@ -901,7 +945,8 @@ function defineReactive$$1 (
   obj,
   key,
   val,
-  customSetter
+  customSetter,
+  shallow
 ) {
   var dep = new Dep();
 
@@ -914,7 +959,7 @@ function defineReactive$$1 (
   var getter = property && property.get;
   var setter = property && property.set;
 
-  var childOb = observe(val);
+  var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
     enumerable: true,
     configurable: true,
@@ -946,7 +991,7 @@ function defineReactive$$1 (
       } else {
         val = newVal;
       }
-      childOb = observe(newVal);
+      childOb = !shallow && observe(newVal);
       dep.notify();
     }
   });
@@ -958,7 +1003,7 @@ function defineReactive$$1 (
  * already exist.
  */
 function set (target, key, val) {
-  if (Array.isArray(target) && typeof key === 'number') {
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
     return val
@@ -967,7 +1012,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  var ob = (target ).__ob__;
+  var ob = (target).__ob__;
   if (target._isVue || (ob && ob.vmCount)) {
     process.env.NODE_ENV !== 'production' && warn(
       'Avoid adding reactive properties to a Vue instance or its root $data ' +
@@ -988,11 +1033,11 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
-  if (Array.isArray(target) && typeof key === 'number') {
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
   }
-  var ob = (target ).__ob__;
+  var ob = (target).__ob__;
   if (target._isVue || (ob && ob.vmCount)) {
     process.env.NODE_ENV !== 'production' && warn(
       'Avoid deleting properties on a Vue instance or its root $data ' +
@@ -1071,7 +1116,7 @@ function mergeData (to, from) {
 /**
  * Data
  */
-strats.data = function (
+function mergeDataOrFn (
   parentVal,
   childVal,
   vm
@@ -1081,15 +1126,6 @@ strats.data = function (
     if (!childVal) {
       return parentVal
     }
-    if (typeof childVal !== 'function') {
-      process.env.NODE_ENV !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-      return parentVal
-    }
     if (!parentVal) {
       return childVal
     }
@@ -1100,8 +1136,8 @@ strats.data = function (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        childVal.call(this),
-        parentVal.call(this)
+        typeof childVal === 'function' ? childVal.call(this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
   } else if (parentVal || childVal) {
@@ -1120,6 +1156,28 @@ strats.data = function (
       }
     }
   }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      process.env.NODE_ENV !== 'production' && warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn.call(this, parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
 };
 
 /**
@@ -1167,6 +1225,9 @@ ASSET_TYPES.forEach(function (type) {
  * another, so we merge them as arrays.
  */
 strats.watch = function (parentVal, childVal) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
   if (!parentVal) { return childVal }
@@ -1180,7 +1241,7 @@ strats.watch = function (parentVal, childVal) {
     }
     ret[key] = parent
       ? parent.concat(child)
-      : [child];
+      : Array.isArray(child) ? child : [child];
   }
   return ret
 };
@@ -1190,14 +1251,15 @@ strats.watch = function (parentVal, childVal) {
  */
 strats.props =
 strats.methods =
+strats.inject =
 strats.computed = function (parentVal, childVal) {
-  if (!childVal) { return Object.create(parentVal || null) }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
-  extend(ret, childVal);
+  if (childVal) { extend(ret, childVal); }
   return ret
 };
+strats.provide = mergeDataOrFn;
 
 /**
  * Default strategy.
@@ -1255,6 +1317,19 @@ function normalizeProps (options) {
   options.props = res;
 }
 
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options) {
+  var inject = options.inject;
+  if (Array.isArray(inject)) {
+    var normalized = options.inject = {};
+    for (var i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = inject[i];
+    }
+  }
+}
+
 /**
  * Normalize raw function directives into object format.
  */
@@ -1288,6 +1363,7 @@ function mergeOptions (
   }
 
   normalizeProps(child);
+  normalizeInject(child);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1405,7 +1481,8 @@ function getPropDefaultValue (vm, prop, key) {
   // return previous default value to avoid unnecessary watcher trigger
   if (vm && vm.$options.propsData &&
     vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined) {
+    vm._props[key] !== undefined
+  ) {
     return vm._props[key]
   }
   // call factory function for non-Function types
@@ -1511,6 +1588,8 @@ function isType (type, fn) {
   return false
 }
 
+/*  */
+
 /* not type checking this file because flow doesn't play well with Proxy */
 
 var initProxy;
@@ -1617,7 +1696,8 @@ var VNode = function VNode (
   text,
   elm,
   context,
-  componentOptions
+  componentOptions,
+  asyncFactory
 ) {
   this.tag = tag;
   this.data = data;
@@ -1637,6 +1717,9 @@ var VNode = function VNode (
   this.isComment = false;
   this.isCloned = false;
   this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
 };
 
 var prototypeAccessors = { child: {} };
@@ -1649,9 +1732,11 @@ prototypeAccessors.child.get = function () {
 
 Object.defineProperties( VNode.prototype, prototypeAccessors );
 
-var createEmptyVNode = function () {
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
   var node = new VNode();
-  node.text = '';
+  node.text = text;
   node.isComment = true;
   return node
 };
@@ -1672,11 +1757,13 @@ function cloneVNode (vnode) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions
+    vnode.componentOptions,
+    vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
   return cloned
 }
@@ -1713,8 +1800,9 @@ function createFnInvoker (fns) {
 
     var fns = invoker.fns;
     if (Array.isArray(fns)) {
-      for (var i = 0; i < fns.length; i++) {
-        fns[i].apply(null, arguments$1);
+      var cloned = fns.slice();
+      for (var i = 0; i < cloned.length; i++) {
+        cloned[i].apply(null, arguments$1);
       }
     } else {
       // return handler return value for single handlers
@@ -1895,6 +1983,10 @@ function normalizeChildren (children) {
       : undefined
 }
 
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
   var i, c, last;
@@ -1906,19 +1998,26 @@ function normalizeArrayChildren (children, nestedIndex) {
     if (Array.isArray(c)) {
       res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
     } else if (isPrimitive(c)) {
-      if (isDef(last) && isDef(last.text)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
         (last).text += String(c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
       }
     } else {
-      if (isDef(c.text) && isDef(last) && isDef(last.text)) {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
         res[res.length - 1] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
-        if (isDef(c.tag) && isUndef(c.key) && isDef(nestedIndex)) {
-          c.key = "__vlist" + ((nestedIndex)) + "_" + i + "__";
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = "__vlist" + nestedIndex + "_" + i + "__";
         }
         res.push(c);
       }
@@ -1930,11 +2029,27 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
+  if (comp.__esModule && comp.default) {
+    comp = comp.default;
+  }
   return isObject(comp)
     ? base.extend(comp)
     : comp
 }
 
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
+}
+
 function resolveAsyncComponent (
   factory,
   baseCtor,
@@ -2017,11 +2132,13 @@ function resolveAsyncComponent (
 
         if (isDef(res.timeout)) {
           setTimeout(function () {
-            reject(
-              process.env.NODE_ENV !== 'production'
-                ? ("timeout (" + (res.timeout) + "ms)")
-                : null
-            );
+            if (isUndef(factory.resolved)) {
+              reject(
+                process.env.NODE_ENV !== 'production'
+                  ? ("timeout (" + (res.timeout) + "ms)")
+                  : null
+              );
+            }
           }, res.timeout);
         }
       }
@@ -2174,7 +2291,11 @@ function eventsMixin (Vue) {
       cbs = cbs.length > 1 ? toArray(cbs) : cbs;
       var args = toArray(arguments, 1);
       for (var i = 0, l = cbs.length; i < l; i++) {
-        cbs[i].apply(vm, args);
+        try {
+          cbs[i].apply(vm, args);
+        } catch (e) {
+          handleError(e, vm, ("event handler for \"" + event + "\""));
+        }
       }
     }
     return vm
@@ -2200,7 +2321,8 @@ function resolveSlots (
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-        child.data && child.data.slot != null) {
+      child.data && child.data.slot != null
+    ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
@@ -2224,11 +2346,16 @@ function isWhitespace (node) {
 }
 
 function resolveScopedSlots (
-  fns
+  fns, // see flow/vnode
+  res
 ) {
-  var res = {};
+  res = res || {};
   for (var i = 0; i < fns.length; i++) {
-    res[fns[i][0]] = fns[i][1];
+    if (Array.isArray(fns[i])) {
+      resolveScopedSlots(fns[i], res);
+    } else {
+      res[fns[i].key] = fns[i].fn;
+    }
   }
   return res
 }
@@ -2236,6 +2363,7 @@ function resolveScopedSlots (
 /*  */
 
 var activeInstance = null;
+var isUpdatingChildComponent = false;
 
 function initLifecycle (vm) {
   var options = vm.$options;
@@ -2283,6 +2411,9 @@ function lifecycleMixin (Vue) {
         vm.$options._parentElm,
         vm.$options._refElm
       );
+      // no need for the ref nodes after initial patch
+      // this prevents keeping a detached DOM tree in memory (#5851)
+      vm.$options._parentElm = vm.$options._refElm = null;
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
@@ -2347,8 +2478,6 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
-    // remove reference to DOM nodes (prevents leak)
-    vm.$options._parentElm = vm.$options._refElm = null;
   };
 }
 
@@ -2424,6 +2553,10 @@ function updateChildComponent (
   parentVnode,
   renderChildren
 ) {
+  if (process.env.NODE_ENV !== 'production') {
+    isUpdatingChildComponent = true;
+  }
+
   // determine whether component has slot children
   // we need to do this before overwriting $options._renderChildren
   var hasChildren = !!(
@@ -2435,17 +2568,21 @@ function updateChildComponent (
 
   vm.$options._parentVnode = parentVnode;
   vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
   if (vm._vnode) { // update child tree's parent
     vm._vnode.parent = parentVnode;
   }
   vm.$options._renderChildren = renderChildren;
 
+  // update $attrs and $listensers hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
+  vm.$listeners = listeners;
+
   // update props
   if (propsData && vm.$options.props) {
     observerState.shouldConvert = false;
-    if (process.env.NODE_ENV !== 'production') {
-      observerState.isSettingProps = true;
-    }
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
@@ -2453,12 +2590,10 @@ function updateChildComponent (
       props[key] = validateProp(key, vm.$options.props, propsData, vm);
     }
     observerState.shouldConvert = true;
-    if (process.env.NODE_ENV !== 'production') {
-      observerState.isSettingProps = false;
-    }
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
+
   // update listeners
   if (listeners) {
     var oldListeners = vm.$options._parentListeners;
@@ -2470,6 +2605,10 @@ function updateChildComponent (
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
     vm.$forceUpdate();
   }
+
+  if (process.env.NODE_ENV !== 'production') {
+    isUpdatingChildComponent = false;
+  }
 }
 
 function isInInactiveTree (vm) {
@@ -2546,7 +2685,7 @@ var index = 0;
  * Reset the scheduler's state.
  */
 function resetSchedulerState () {
-  queue.length = activatedChildren.length = 0;
+  index = queue.length = activatedChildren.length = 0;
   has = {};
   if (process.env.NODE_ENV !== 'production') {
     circular = {};
@@ -2603,7 +2742,7 @@ function flushSchedulerQueue () {
 
   // call component updated and activated hooks
   callActivatedHooks(activatedQueue);
-  callUpdateHooks(updatedQueue);
+  callUpdatedHooks(updatedQueue);
 
   // devtool hook
   /* istanbul ignore if */
@@ -2612,7 +2751,7 @@ function flushSchedulerQueue () {
   }
 }
 
-function callUpdateHooks (queue) {
+function callUpdatedHooks (queue) {
   var i = queue.length;
   while (i--) {
     var watcher = queue[i];
@@ -2656,10 +2795,10 @@ function queueWatcher (watcher) {
       // if already flushing, splice the watcher based on its id
       // if already past its id, it will be run next immediately.
       var i = queue.length - 1;
-      while (i >= 0 && queue[i].id > watcher.id) {
+      while (i > index && queue[i].id > watcher.id) {
         i--;
       }
-      queue.splice(Math.max(i, index) + 1, 0, watcher);
+      queue.splice(i + 1, 0, watcher);
     }
     // queue the flush
     if (!waiting) {
@@ -2733,22 +2872,23 @@ Watcher.prototype.get = function get () {
   pushTarget(this);
   var value;
   var vm = this.vm;
-  if (this.user) {
-    try {
-      value = this.getter.call(vm, vm);
-    } catch (e) {
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
       handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
     }
-  } else {
-    value = this.getter.call(vm, vm);
-  }
-  // "touch" every property so they are all tracked as
-  // dependencies for deep watching
-  if (this.deep) {
-    traverse(value);
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
   }
-  popTarget();
-  this.cleanupDeps();
   return value
 };
 
@@ -2941,14 +3081,20 @@ function initState (vm) {
     observe(vm._data = {}, true /* asRootData */);
   }
   if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch) { initWatch(vm, opts.watch); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
 }
 
-var isReservedProp = {
-  key: 1,
-  ref: 1,
-  slot: 1
-};
+function checkOptionType (vm, name) {
+  var option = vm.$options[name];
+  if (!isPlainObject(option)) {
+    warn(
+      ("component option \"" + name + "\" should be an object."),
+      vm
+    );
+  }
+}
 
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
@@ -2964,14 +3110,14 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     if (process.env.NODE_ENV !== 'production') {
-      if (isReservedProp[key] || config.isReservedAttr(key)) {
+      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
         warn(
           ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
       defineReactive$$1(props, key, value, function () {
-        if (vm.$parent && !observerState.isSettingProps) {
+        if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -3012,16 +3158,26 @@ function initData (vm) {
   // proxy data on instance
   var keys = Object.keys(data);
   var props = vm.$options.props;
+  var methods = vm.$options.methods;
   var i = keys.length;
   while (i--) {
-    if (props && hasOwn(props, keys[i])) {
+    var key = keys[i];
+    if (process.env.NODE_ENV !== 'production') {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
       process.env.NODE_ENV !== 'production' && warn(
-        "The data property \"" + (keys[i]) + "\" is already declared as a prop. " +
+        "The data property \"" + key + "\" is already declared as a prop. " +
         "Use prop default value instead.",
         vm
       );
-    } else if (!isReserved(keys[i])) {
-      proxy(vm, "_data", keys[i]);
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
     }
   }
   // observe data
@@ -3040,22 +3196,20 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
 
   for (var key in computed) {
     var userDef = computed[key];
     var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production') {
-      if (getter === undefined) {
-        warn(
-          ("No getter function has been defined for computed property \"" + key + "\"."),
-          vm
-        );
-        getter = noop;
-      }
+    if (process.env.NODE_ENV !== 'production' && getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
+      );
     }
     // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter, noop, computedWatcherOptions);
+    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3086,6 +3240,15 @@ function defineComputed (target, key, userDef) {
       ? userDef.set
       : noop;
   }
+  if (process.env.NODE_ENV !== 'production' &&
+      sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
+  }
   Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
@@ -3105,6 +3268,7 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
+  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
     vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
@@ -3127,6 +3291,7 @@ function initMethods (vm, methods) {
 }
 
 function initWatch (vm, watch) {
+  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3139,8 +3304,12 @@ function initWatch (vm, watch) {
   }
 }
 
-function createWatcher (vm, key, handler) {
-  var options;
+function createWatcher (
+  vm,
+  keyOrFn,
+  handler,
+  options
+) {
   if (isPlainObject(handler)) {
     options = handler;
     handler = handler.handler;
@@ -3148,7 +3317,7 @@ function createWatcher (vm, key, handler) {
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  vm.$watch(key, handler, options);
+  return vm.$watch(keyOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3183,6 +3352,9 @@ function stateMixin (Vue) {
     options
   ) {
     var vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
     options = options || {};
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
@@ -3209,6 +3381,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
+    observerState.shouldConvert = false;
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
@@ -3224,24 +3397,21 @@ function initInjections (vm) {
         defineReactive$$1(vm, key, result[key]);
       }
     });
+    observerState.shouldConvert = true;
   }
 }
 
 function resolveInject (inject, vm) {
   if (inject) {
     // inject is :any because flow is not smart enough to figure out cached
-    // isArray here
-    var isArray = Array.isArray(inject);
     var result = Object.create(null);
-    var keys = isArray
-      ? inject
-      : hasSymbol
+    var keys = hasSymbol
         ? Reflect.ownKeys(inject)
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = isArray ? key : inject[key];
+      var provideKey = inject[key];
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3250,6 +3420,9 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
+      if (process.env.NODE_ENV !== 'production' && !source) {
+        warn(("Injection \"" + key + "\" not found"), vm);
+      }
     }
     return result
   }
@@ -3268,7 +3441,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData);
+      props[key] = validateProp(key, propOptions, propsData || {});
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -3289,6 +3462,7 @@ function createFunctionalComponent (
   });
   if (vnode instanceof VNode) {
     vnode.functionalContext = context;
+    vnode.functionalOptions = Ctor.options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -3402,21 +3576,30 @@ function createComponent (
   }
 
   // async component
+  var asyncFactory;
   if (isUndef(Ctor.cid)) {
-    Ctor = resolveAsyncComponent(Ctor, baseCtor, context);
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
     if (Ctor === undefined) {
-      // return nothing if this is indeed an async component
-      // wait for the callback to trigger parent update.
-      return
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
     }
   }
 
+  data = data || {};
+
   // resolve constructor options in case global mixins are applied after
   // component constructor creation
   resolveConstructorOptions(Ctor);
 
-  data = data || {};
-
   // transform component v-model data into props & events
   if (isDef(data.model)) {
     transformModel(Ctor.options, data);
@@ -3434,12 +3617,19 @@ function createComponent (
   // child component listeners instead of DOM listeners
   var listeners = data.on;
   // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
   data.on = data.nativeOn;
 
   if (isTrue(Ctor.options.abstract)) {
     // abstract components do not keep anything
-    // other than props & listeners
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
     data = {};
+    if (slot) {
+      data.slot = slot;
+    }
   }
 
   // merge component management hooks onto the placeholder node
@@ -3450,7 +3640,8 @@ function createComponent (
   var vnode = new VNode(
     ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
     data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children }
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
   );
   return vnode
 }
@@ -3555,13 +3746,28 @@ function _createElement (
     );
     return createEmptyVNode()
   }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
   if (!tag) {
     // in case of component :is set to falsy value
     return createEmptyVNode()
   }
+  // warn against non-primitive key
+  if (process.env.NODE_ENV !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    warn(
+      'Avoid using non-primitive value as key, ' +
+      'use string/number value instead.',
+      context
+    );
+  }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
-      typeof children[0] === 'function') {
+    typeof children[0] === 'function'
+  ) {
     data = data || {};
     data.scopedSlots = { default: children[0] };
     children.length = 0;
@@ -3597,7 +3803,7 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (vnode !== undefined) {
+  if (isDef(vnode)) {
     if (ns) { applyNS(vnode, ns); }
     return vnode
   } else {
@@ -3611,7 +3817,7 @@ function applyNS (vnode, ns) {
     // use default namespace inside foreignObject
     return
   }
-  if (Array.isArray(vnode.children)) {
+  if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
       if (isDef(child.tag) && isUndef(child.ns)) {
@@ -3649,6 +3855,9 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
   return ret
 }
 
@@ -3667,7 +3876,7 @@ function renderSlot (
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
-      extend(props, bindObject);
+      props = extend(extend({}, bindObject), props);
     }
     return scopedSlotFn(props) || fallback
   } else {
@@ -3721,7 +3930,8 @@ function bindObjectProps (
   data,
   tag,
   value,
-  asProp
+  asProp,
+  isSync
 ) {
   if (value) {
     if (!isObject(value)) {
@@ -3734,8 +3944,12 @@ function bindObjectProps (
         value = toObject(value);
       }
       var hash;
-      for (var key in value) {
-        if (key === 'class' || key === 'style') {
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
           hash = data;
         } else {
           var type = data.attrs && data.attrs.type;
@@ -3745,8 +3959,17 @@ function bindObjectProps (
         }
         if (!(key in hash)) {
           hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
         }
-      }
+      };
+
+      for (var key in value) loop( key );
     }
   }
   return data
@@ -3813,6 +4036,27 @@ function markStaticNode (node, key, isOnce) {
 
 /*  */
 
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
   vm._staticTrees = null;
@@ -3828,6 +4072,22 @@ function initRender (vm) {
   // normalization is always applied for the public version, used in
   // user-written render functions.
   vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
+  /* istanbul ignore else */
+  if (process.env.NODE_ENV !== 'production') {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
+  } else {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, null, true);
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, null, true);
+  }
 }
 
 function renderMixin (Vue) {
@@ -3895,7 +4155,7 @@ function renderMixin (Vue) {
   // code size.
   Vue.prototype._o = markOnce;
   Vue.prototype._n = toNumber;
-  Vue.prototype._s = _toString;
+  Vue.prototype._s = toString;
   Vue.prototype._l = renderList;
   Vue.prototype._t = renderSlot;
   Vue.prototype._q = looseEqual;
@@ -3907,6 +4167,7 @@ function renderMixin (Vue) {
   Vue.prototype._v = createTextVNode;
   Vue.prototype._e = createEmptyVNode;
   Vue.prototype._u = resolveScopedSlots;
+  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4048,7 +4309,8 @@ function dedupe (latest, extended, sealed) {
 
 function Vue$2 (options) {
   if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue$2)) {
+    !(this instanceof Vue$2)
+  ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
@@ -4064,10 +4326,11 @@ renderMixin(Vue$2);
 
 function initUse (Vue) {
   Vue.use = function (plugin) {
-    /* istanbul ignore if */
-    if (plugin.installed) {
-      return
+    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
     }
+
     // additional parameters
     var args = toArray(arguments, 1);
     args.unshift(this);
@@ -4076,7 +4339,7 @@ function initUse (Vue) {
     } else if (typeof plugin === 'function') {
       plugin.apply(null, args);
     }
-    plugin.installed = true;
+    installedPlugins.push(plugin);
     return this
   };
 }
@@ -4086,6 +4349,7 @@ function initUse (Vue) {
 function initMixin$1 (Vue) {
   Vue.mixin = function (mixin) {
     this.options = mergeOptions(this.options, mixin);
+    return this
   };
 }
 
@@ -4226,14 +4490,16 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp];
+var patternTypes = [String, RegExp, Array];
 
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
 
 function matches (pattern, name) {
-  if (typeof pattern === 'string') {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
     return pattern.split(',').indexOf(name) > -1
   } else if (isRegExp(pattern)) {
     return pattern.test(name)
@@ -4377,7 +4643,14 @@ Object.defineProperty(Vue$2.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Vue$2.version = '2.3.0-beta.1';
+Object.defineProperty(Vue$2.prototype, '$ssrContext', {
+  get: function get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+Vue$2.version = '2.4.2';
 
 /* globals renderer */
 // renderer is injected by weex factory wrapper
@@ -4508,10 +4781,11 @@ function registerRef (vnode, isRemoval) {
     }
   } else {
     if (vnode.data.refInFor) {
-      if (Array.isArray(refs[key]) && refs[key].indexOf(ref) < 0) {
-        refs[key].push(ref);
-      } else {
+      if (!Array.isArray(refs[key])) {
         refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
       }
     } else {
       refs[key] = ref;
@@ -4539,11 +4813,18 @@ var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
 function sameVnode (a, b) {
   return (
-    a.key === b.key &&
-    a.tag === b.tag &&
-    a.isComment === b.isComment &&
-    isDef(a.data) === isDef(b.data) &&
-    sameInputType(a, b)
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
   )
 }
 
@@ -4696,6 +4977,7 @@ function createPatchFunction (backend) {
   function initComponent (vnode, insertedVnodeQueue) {
     if (isDef(vnode.data.pendingInsert)) {
       insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
     }
     vnode.elm = vnode.componentInstance.$el;
     if (isPatchable(vnode)) {
@@ -4732,11 +5014,11 @@ function createPatchFunction (backend) {
     insert(parentElm, vnode.elm, refElm);
   }
 
-  function insert (parent, elm, ref) {
+  function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
-      if (isDef(ref)) {
-        if (ref.parentNode === parent) {
-          nodeOps.insertBefore(parent, elm, ref);
+      if (isDef(ref$$1)) {
+        if (ref$$1.parentNode === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
         nodeOps.appendChild(parent, elm);
@@ -4786,8 +5068,9 @@ function createPatchFunction (backend) {
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
-        i !== vnode.context &&
-        isDef(i = i.$options._scopeId)) {
+      i !== vnode.context &&
+      isDef(i = i.$options._scopeId)
+    ) {
       nodeOps.setAttribute(vnode.elm, i, '');
     }
   }
@@ -4912,7 +5195,7 @@ function createPatchFunction (backend) {
           if (sameVnode(elmToMove, newStartVnode)) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, newStartVnode.elm, oldStartVnode.elm);
+            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
             newStartVnode = newCh[++newStartIdx];
           } else {
             // same key but different element. treat as new element
@@ -4934,24 +5217,37 @@ function createPatchFunction (backend) {
     if (oldVnode === vnode) {
       return
     }
+
+    var elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
     // reuse element for static trees.
     // note we only do this if the vnode is cloned -
     // if the new node is not cloned it means the render functions have been
     // reset by the hot-reload-api and we need to do a proper re-render.
     if (isTrue(vnode.isStatic) &&
-        isTrue(oldVnode.isStatic) &&
-        vnode.key === oldVnode.key &&
-        (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))) {
-      vnode.elm = oldVnode.elm;
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
       vnode.componentInstance = oldVnode.componentInstance;
       return
     }
+
     var i;
     var data = vnode.data;
     if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
       i(oldVnode, vnode);
     }
-    var elm = vnode.elm = oldVnode.elm;
+
     var oldCh = oldVnode.children;
     var ch = vnode.children;
     if (isDef(data) && isPatchable(vnode)) {
@@ -4996,6 +5292,11 @@ function createPatchFunction (backend) {
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
   function hydrate (elm, vnode, insertedVnodeQueue) {
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.elm = elm;
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
     if (process.env.NODE_ENV !== 'production') {
       if (!assertNodeMatch(elm, vnode)) {
         return false
@@ -5032,8 +5333,9 @@ function createPatchFunction (backend) {
           // longer than the virtual children list.
           if (!childrenMatch || childNode) {
             if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !bailed) {
+              typeof console !== 'undefined' &&
+              !bailed
+            ) {
               bailed = true;
               console.warn('Parent: ', elm);
               console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
@@ -5313,8 +5615,10 @@ function updateClass (oldVnode, vnode) {
 
   var data = vnode.data;
   var oldData = oldVnode.data;
-  if (!data.staticClass && !data.class &&
-      (!oldData || (!oldData.staticClass && !oldData.class))) {
+  if (!data.staticClass &&
+    !data.class &&
+    (!oldData || (!oldData.staticClass && !oldData.class))
+  ) {
     return
   }
 
@@ -5632,9 +5936,10 @@ function enter (_, vnode) {
     var parent = el.parentNode;
     var pendingNode = parent && parent._pending && parent._pending[vnode.key];
     if (pendingNode &&
-        pendingNode.context === vnode.context &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb) {
+      pendingNode.context === vnode.context &&
+      pendingNode.tag === vnode.tag &&
+      pendingNode.elm._leaveCb
+    ) {
       pendingNode.elm._leaveCb();
     }
     enterHook && enterHook(el, cb);
@@ -5893,6 +6198,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
 var Transition$1 = {
   name: 'transition',
   props: transitionProps,
@@ -5901,13 +6210,13 @@ var Transition$1 = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$slots.default;
+    var children = this.$options._renderChildren;
     if (!children) {
       return
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag; });
+    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -5926,7 +6235,8 @@ var Transition$1 = {
 
     // warn invalid mode
     if (process.env.NODE_ENV !== 'production' &&
-        mode && mode !== 'in-out' && mode !== 'out-in') {
+      mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
       warn(
         'invalid <transition> mode: ' + mode,
         this.$parent
@@ -5958,7 +6268,9 @@ var Transition$1 = {
     // during entering.
     var id = "__transition-" + (this._uid) + "-";
     child.key = child.key == null
-      ? id + child.tag
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
       : isPrimitive(child.key)
         ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
         : child.key;
@@ -5973,7 +6285,12 @@ var Transition$1 = {
       child.data.show = true;
     }
 
-    if (oldChild && oldChild.data && !isSameChild(child, oldChild)) {
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild)
+    ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
       var oldData = oldChild && (oldChild.data.transition = extend({}, data));
@@ -5987,6 +6304,9 @@ var Transition$1 = {
         });
         return placeholder(h, rawChild)
       } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
         var delayedLeave;
         var performLeave = function () { delayedLeave(); };
         mergeVNodeHook(data, 'afterEnter', performLeave);
diff --git a/packages/weex-vue-framework/index.js b/packages/weex-vue-framework/index.js
index 70b16298f7f..a05c5f54084 100644
--- a/packages/weex-vue-framework/index.js
+++ b/packages/weex-vue-framework/index.js
@@ -34,7 +34,7 @@ function init (cfg) {
   renderer.Document = cfg.Document;
   renderer.Element = cfg.Element;
   renderer.Comment = cfg.Comment;
-  renderer.sendTasks = cfg.sendTasks;
+  renderer.compileBundle = cfg.compileBundle;
 }
 
 /**
@@ -47,7 +47,7 @@ function reset () {
   delete renderer.Document;
   delete renderer.Element;
   delete renderer.Comment;
-  delete renderer.sendTasks;
+  delete renderer.compileBundle;
 }
 
 /**
@@ -82,18 +82,9 @@ function createInstance (
   // Virtual-DOM object.
   var document = new renderer.Document(instanceId, config.bundleUrl);
 
-  // All function/callback of parameters before sent to native
-  // will be converted as an id. So `callbacks` is used to store
-  // these real functions. When a callback invoked and won't be
-  // called again, it should be removed from here automatically.
-  var callbacks = [];
-
-  // The latest callback id, incremental.
-  var callbackId = 1;
-
   var instance = instances[instanceId] = {
     instanceId: instanceId, config: config, data: data,
-    document: document, callbacks: callbacks, callbackId: callbackId
+    document: document
   };
 
   // Prepare native module getter and HTML5 Timer APIs.
@@ -104,6 +95,7 @@ function createInstance (
   var weexInstanceVar = {
     config: config,
     document: document,
+    supports: supports,
     requireModule: moduleGetter
   };
   Object.freeze(weexInstanceVar);
@@ -118,11 +110,16 @@ function createInstance (
     weex: weexInstanceVar,
     // deprecated
     __weex_require_module__: weexInstanceVar.requireModule // eslint-disable-line
-  }, timerAPIs);
-  callFunction(instanceVars, appCode);
+  }, timerAPIs, env.services);
+
+  if (!callFunctionNative(instanceVars, appCode)) {
+    // If failed to compile functionBody on native side,
+    // fallback to 'callFunction()'.
+    callFunction(instanceVars, appCode);
+  }
 
   // Send `createFinish` signal to native.
-  renderer.sendTasks(instanceId + '', [{ module: 'dom', method: 'createFinish', args: [] }], -1);
+  instance.document.taskCenter.send('dom', { action: 'createFinish' }, []);
 }
 
 /**
@@ -133,6 +130,7 @@ function createInstance (
 function destroyInstance (instanceId) {
   var instance = instances[instanceId];
   if (instance && instance.app instanceof instance.Vue) {
+    instance.document.destroy();
     instance.app.$destroy();
   }
   delete instances[instanceId];
@@ -154,7 +152,7 @@ function refreshInstance (instanceId, data) {
     instance.Vue.set(instance.app, key, data[key]);
   }
   // Finally `refreshFinish` signal needed.
-  renderer.sendTasks(instanceId + '', [{ module: 'dom', method: 'refreshFinish', args: [] }], -1);
+  instance.document.taskCenter.send('dom', { action: 'refreshFinish' }, []);
 }
 
 /**
@@ -169,49 +167,57 @@ function getRoot (instanceId) {
   return instance.app.$el.toJSON()
 }
 
+var jsHandlers = {
+  fireEvent: function (id) {
+    var args = [], len = arguments.length - 1;
+    while ( len-- > 0 ) args[ len ] = arguments[ len + 1 ];
+
+    return fireEvent.apply(void 0, [ instances[id] ].concat( args ))
+  },
+  callback: function (id) {
+    var args = [], len = arguments.length - 1;
+    while ( len-- > 0 ) args[ len ] = arguments[ len + 1 ];
+
+    return callback.apply(void 0, [ instances[id] ].concat( args ))
+  }
+};
+
+function fireEvent (instance, nodeId, type, e, domChanges) {
+  var el = instance.document.getRef(nodeId);
+  if (el) {
+    return instance.document.fireEvent(el, type, e, domChanges)
+  }
+  return new Error(("invalid element reference \"" + nodeId + "\""))
+}
+
+function callback (instance, callbackId, data, ifKeepAlive) {
+  var result = instance.document.taskCenter.callback(callbackId, data, ifKeepAlive);
+  instance.document.taskCenter.send('dom', { action: 'updateFinish' }, []);
+  return result
+}
+
 /**
- * Receive tasks from native. Generally there are two types of tasks:
- * 1. `fireEvent`: an device actions or user actions from native.
- * 2. `callback`: invoke function which sent to native as a parameter before.
- * @param {string} instanceId
- * @param {array}  tasks
+ * Accept calls from native (event or callback).
+ *
+ * @param  {string} id
+ * @param  {array} tasks list with `method` and `args`
  */
-function receiveTasks (instanceId, tasks) {
-  var instance = instances[instanceId];
-  if (!instance || !(instance.app instanceof instance.Vue)) {
-    return new Error(("receiveTasks: instance " + instanceId + " not found!"))
-  }
-  var callbacks = instance.callbacks;
-  var document = instance.document;
-  tasks.forEach(function (task) {
-    // `fireEvent` case: find the event target and fire.
-    if (task.method === 'fireEvent') {
-      var ref = task.args;
-      var nodeId = ref[0];
-      var type = ref[1];
-      var e = ref[2];
-      var domChanges = ref[3];
-      var el = document.getRef(nodeId);
-      document.fireEvent(el, type, e, domChanges);
-    }
-    // `callback` case: find the callback by id and call it.
-    if (task.method === 'callback') {
-      var ref$1 = task.args;
-      var callbackId = ref$1[0];
-      var data = ref$1[1];
-      var ifKeepAlive = ref$1[2];
-      var callback = callbacks[callbackId];
-      if (typeof callback === 'function') {
-        callback(data);
-        // Remove the callback from `callbacks` if it won't called again.
-        if (typeof ifKeepAlive === 'undefined' || ifKeepAlive === false) {
-          callbacks[callbackId] = undefined;
-        }
+function receiveTasks (id, tasks) {
+  var instance = instances[id];
+  if (instance && Array.isArray(tasks)) {
+    var results = [];
+    tasks.forEach(function (task) {
+      var handler = jsHandlers[task.method];
+      var args = [].concat( task.args );
+      /* istanbul ignore else */
+      if (typeof handler === 'function') {
+        args.unshift(id);
+        results.push(handler.apply(void 0, args));
       }
-    }
-  });
-  // Finally `updateFinish` signal needed.
-  renderer.sendTasks(instanceId + '', [{ module: 'dom', method: 'updateFinish', args: [] }], -1);
+    });
+    return results
+  }
+  return new Error(("invalid instance id \"" + id + "\" or tasks"))
 }
 
 /**
@@ -235,6 +241,18 @@ function registerModules (newModules) {
   for (var name in newModules) loop( name );
 }
 
+/**
+ * Check whether the module or the method has been registered.
+ * @param {String} module name
+ * @param {String} method name (optional)
+ */
+function isRegisteredModule (name, method) {
+  if (typeof method === 'string') {
+    return !!(modules[name] && modules[name][method])
+  }
+  return !!modules[name]
+}
+
 /**
  * Register native components information.
  * @param {array} newComponents
@@ -254,6 +272,35 @@ function registerComponents (newComponents) {
   }
 }
 
+/**
+ * Check whether the component has been registered.
+ * @param {String} component name
+ */
+function isRegisteredComponent (name) {
+  return !!components[name]
+}
+
+/**
+ * Detects whether Weex supports specific features.
+ * @param {String} condition
+ */
+function supports (condition) {
+  if (typeof condition !== 'string') { return null }
+
+  var res = condition.match(/^@(\w+)\/(\w+)(\.(\w+))?$/i);
+  if (res) {
+    var type = res[1];
+    var name = res[2];
+    var method = res[4];
+    switch (type) {
+      case 'module': return isRegisteredModule(name, method)
+      case 'component': return isRegisteredComponent(name)
+    }
+  }
+
+  return null
+}
+
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
@@ -314,9 +361,7 @@ function createVueModuleInstance (instanceId, moduleGetter) {
  * Generate native module getter. Each native module has several
  * methods to call. And all the behaviors is instance-related. So
  * this getter will return a set of methods which additionally
- * send current instance id to native when called. Also the args
- * will be normalized into "safe" value. For example function arg
- * will be converted into a callback id.
+ * send current instance id to native when called.
  * @param  {string}  instanceId
  * @return {function}
  */
@@ -326,15 +371,23 @@ function genModuleGetter (instanceId) {
     var nativeModule = modules[name] || [];
     var output = {};
     var loop = function ( methodName ) {
-      output[methodName] = function () {
-        var args = [], len = arguments.length;
-        while ( len-- ) args[ len ] = arguments[ len ];
-
-        var finalArgs = args.map(function (value) {
-          return normalize(value, instance)
-        });
-        renderer.sendTasks(instanceId + '', [{ module: name, method: methodName, args: finalArgs }], -1);
-      };
+      Object.defineProperty(output, methodName, {
+        enumerable: true,
+        configurable: true,
+        get: function proxyGetter () {
+          return function () {
+            var args = [], len = arguments.length;
+            while ( len-- ) args[ len ] = arguments[ len ];
+
+            return instance.document.taskCenter.send('module', { module: name, method: methodName }, args)
+          }
+        },
+        set: function proxySetter (val) {
+          if (typeof val === 'function') {
+            return instance.document.taskCenter.send('module', { module: name, method: methodName }, [val])
+          }
+        }
+      });
     };
 
     for (var methodName in nativeModule) loop( methodName );
@@ -362,8 +415,9 @@ function getInstanceTimer (instanceId, moduleGetter) {
       var handler = function () {
         args[0].apply(args, args.slice(2));
       };
+
       timer.setTimeout(handler, args[1]);
-      return instance.callbackId.toString()
+      return instance.document.taskCenter.callbackManager.lastCallbackId.toString()
     },
     setInterval: function () {
       var args = [], len = arguments.length;
@@ -372,8 +426,9 @@ function getInstanceTimer (instanceId, moduleGetter) {
       var handler = function () {
         args[0].apply(args, args.slice(2));
       };
+
       timer.setInterval(handler, args[1]);
-      return instance.callbackId.toString()
+      return instance.document.taskCenter.callbackManager.lastCallbackId.toString()
     },
     clearTimeout: function (n) {
       timer.clearTimeout(n);
@@ -405,52 +460,55 @@ function callFunction (globalObjects, body) {
 }
 
 /**
- * Convert all type of values into "safe" format to send to native.
- * 1. A `function` will be converted into callback id.
- * 2. An `Element` object will be converted into `ref`.
- * The `instance` param is used to generate callback id and store
- * function if necessary.
- * @param  {any}    v
- * @param  {object} instance
- * @return {any}
+ * Call a new function generated on the V8 native side.
+ *
+ * This function helps speed up bundle compiling. Normally, the V8
+ * engine needs to download, parse, and compile a bundle on every
+ * visit. If 'compileBundle()' is available on native side,
+ * the downloding, parsing, and compiling steps would be skipped.
+ * @param  {object} globalObjects
+ * @param  {string} body
+ * @return {boolean}
  */
-function normalize (v, instance) {
-  var type = typof(v);
-
-  switch (type) {
-    case 'undefined':
-    case 'null':
-      return ''
-    case 'regexp':
-      return v.toString()
-    case 'date':
-      return v.toISOString()
-    case 'number':
-    case 'string':
-    case 'boolean':
-    case 'array':
-    case 'object':
-      if (v instanceof renderer.Element) {
-        return v.ref
-      }
-      return v
-    case 'function':
-      instance.callbacks[++instance.callbackId] = v;
-      return instance.callbackId.toString()
-    default:
-      return JSON.stringify(v)
+function callFunctionNative (globalObjects, body) {
+  if (typeof renderer.compileBundle !== 'function') {
+    return false
   }
-}
 
-/**
- * Get the exact type of an object by `toString()`. For example call
- * `toString()` on an array will be returned `[object Array]`.
- * @param  {any}    v
- * @return {string}
- */
-function typof (v) {
-  var s = Object.prototype.toString.call(v);
-  return s.substring(8, s.length - 1).toLowerCase()
+  var fn = void 0;
+  var isNativeCompileOk = false;
+  var script = '(function (';
+  var globalKeys = [];
+  var globalValues = [];
+  for (var key in globalObjects) {
+    globalKeys.push(key);
+    globalValues.push(globalObjects[key]);
+  }
+  for (var i = 0; i < globalKeys.length - 1; ++i) {
+    script += globalKeys[i];
+    script += ',';
+  }
+  script += globalKeys[globalKeys.length - 1];
+  script += ') {';
+  script += body;
+  script += '} )';
+
+  try {
+    var weex = globalObjects.weex || {};
+    var config = weex.config || {};
+    fn = renderer.compileBundle(script,
+      config.bundleUrl,
+      config.bundleDigest,
+      config.codeCachePath);
+    if (fn && typeof fn === 'function') {
+      fn.apply(void 0, globalValues);
+      isNativeCompileOk = true;
+    }
+  } catch (e) {
+    console.error(e);
+  }
+
+  return isNativeCompileOk
 }
 
 exports.init = init;
@@ -461,4 +519,7 @@ exports.refreshInstance = refreshInstance;
 exports.getRoot = getRoot;
 exports.receiveTasks = receiveTasks;
 exports.registerModules = registerModules;
+exports.isRegisteredModule = isRegisteredModule;
 exports.registerComponents = registerComponents;
+exports.isRegisteredComponent = isRegisteredComponent;
+exports.supports = supports;
diff --git a/packages/weex-vue-framework/package.json b/packages/weex-vue-framework/package.json
index ed5f69be00e..71bd1d65c88 100644
--- a/packages/weex-vue-framework/package.json
+++ b/packages/weex-vue-framework/package.json
@@ -1,6 +1,6 @@
 {
   "name": "weex-vue-framework",
-  "version": "2.1.9-weex.1",
+  "version": "2.4.2-weex.1",
   "description": "Vue 2.0 Framework for Weex",
   "main": "index.js",
   "repository": {

From 82f03de3328abde70493d2d3630137f23f140fcb Mon Sep 17 00:00:00 2001
From: Wade <yepbug@qq.com>
Date: Sun, 13 Aug 2017 07:53:17 -0500
Subject: [PATCH 003/911] fix-Firefox (#6359)

---
 src/core/util/env.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index 52f5067a690..04f43256294 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -17,7 +17,7 @@ export const isAndroid = UA && UA.indexOf('android') > 0
 export const isIOS = UA && /iphone|ipad|ipod|ios/.test(UA)
 export const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 export const nativeWatch = ({}).watch
 
 export let supportsPassive = false

From f1c96e72b2369f3f8cc0078adb732a25cc7bfbfe Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 10 Jul 2017 15:43:39 +0800
Subject: [PATCH 004/911] feat(weex): add basic support of richtext

---
 src/platforms/weex/entry-framework.js         |  4 +-
 .../weex/runtime/components/index.js          |  2 +
 .../weex/runtime/components/richtext.js       | 58 +++++++++++++++++++
 src/platforms/weex/util/index.js              |  2 +-
 4 files changed, 64 insertions(+), 2 deletions(-)
 create mode 100644 src/platforms/weex/runtime/components/richtext.js

diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 4314a81c6e4..96636445cbc 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -289,10 +289,12 @@ function createVueModuleInstance (instanceId, moduleGetter) {
 
   // patch reserved tag detection to account for dynamically registered
   // components
+  const weexRegex = /^weex:/i
   const isReservedTag = Vue.config.isReservedTag || (() => false)
   Vue.config.isReservedTag = name => {
-    return components[name] || isReservedTag(name)
+    return components[name] || isReservedTag(name) || weexRegex.test(name)
   }
+  Vue.config.parsePlatformTagName = name => name.replace(weexRegex, '')
 
   // expose weex-specific info
   Vue.prototype.$instanceId = instanceId
diff --git a/src/platforms/weex/runtime/components/index.js b/src/platforms/weex/runtime/components/index.js
index 6bfe5780a5a..449db1ad78a 100644
--- a/src/platforms/weex/runtime/components/index.js
+++ b/src/platforms/weex/runtime/components/index.js
@@ -1,7 +1,9 @@
+import Richtext from './richtext'
 import Transition from './transition'
 import TransitionGroup from './transition-group'
 
 export default {
+  Richtext,
   Transition,
   TransitionGroup
 }
diff --git a/src/platforms/weex/runtime/components/richtext.js b/src/platforms/weex/runtime/components/richtext.js
new file mode 100644
index 00000000000..76e474fe2d3
--- /dev/null
+++ b/src/platforms/weex/runtime/components/richtext.js
@@ -0,0 +1,58 @@
+function parseChildren (h, options) {
+  const children = options._renderChildren
+  if (!children) {
+    return []
+  }
+
+  return children.map(vnode => {
+    if (!vnode.tag && vnode.text) {
+      return h('span', vnode.text)
+    }
+    return vnode
+  })
+}
+
+function getVNodeType (vnode) {
+  const tagName = vnode.tag
+  if (!tagName) {
+    return ''
+  }
+  return tagName.replace(/vue\-component\-(\d+\-)?/, '')
+}
+
+function convertVNodeChildren (children) {
+  if (!children.length) {
+    return
+  }
+  return children.map(vnode => {
+    const type = getVNodeType(vnode)
+    const props = { type }
+
+    // TODO: filter
+    if (vnode.data) {
+      props.style = vnode.data.staticStyle
+      props.attr = vnode.data.attrs
+    }
+
+    if (type === 'span') {
+      props.attr = {}
+      props.attr.value = vnode.text || vnode.children.map(c => c.text).join('').trim()
+    }
+
+    return props
+  })
+}
+
+export default {
+  name: 'richtext',
+  abstract: true,
+  render (h) {
+    const children = parseChildren(h, this.$options)
+    const values = convertVNodeChildren(children)
+    return h('weex:richtext', {
+      attrs: {
+        value: values
+      }
+    })
+  }
+}
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index 19bbe75752a..e5cc8e81027 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -4,7 +4,7 @@ import { makeMap } from 'shared/util'
 
 export const isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
-  'a,div,img,image,text,span,richtext,input,switch,textarea,spinner,select,' +
+  'a,div,img,image,text,span,input,switch,textarea,spinner,select,' +
   'slider,slider-neighbor,indicator,trisition,trisition-group,canvas,' +
   'list,cell,header,loading,loading-indicator,refresh,scrollable,scroller,' +
   'video,web,embed,tabbar,tabheader,datepicker,timepicker,marquee,countdown',

From 09302a7211ee9204500ee3d8ae8720db852e9e7b Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 10 Jul 2017 15:50:47 +0800
Subject: [PATCH 005/911] test(weex): add test cases for richtext component

---
 test/weex/runtime/component/richtext.spec.js | 305 +++++++++++++++++++
 1 file changed, 305 insertions(+)
 create mode 100644 test/weex/runtime/component/richtext.spec.js

diff --git a/test/weex/runtime/component/richtext.spec.js b/test/weex/runtime/component/richtext.spec.js
new file mode 100644
index 00000000000..9362504016f
--- /dev/null
+++ b/test/weex/runtime/component/richtext.spec.js
@@ -0,0 +1,305 @@
+import {
+  compileAndStringify,
+  prepareRuntime,
+  resetRuntime,
+  createInstance
+} from '../../helpers/index'
+
+function compileSnippet (runtime, snippet) {
+  const { render, staticRenderFns } = compileAndStringify(`<div>${snippet}</div>`)
+  const instance = createInstance(runtime, `
+    new Vue({
+      render: ${render},
+      staticRenderFns: ${staticRenderFns},
+      el: 'body'
+    })
+  `)
+  const result = instance.getRealRoot().children[0]
+  return result
+}
+
+describe('richtext component', () => {
+  let runtime
+
+  beforeAll(() => {
+    runtime = prepareRuntime()
+  })
+
+  afterAll(() => {
+    resetRuntime()
+    runtime = null
+  })
+
+  it('with no child', () => {
+    // pending('work in progress')
+    expect(compileSnippet(runtime, `
+      <richtext></richtext>
+    `)).toEqual({
+      type: 'richtext'
+    })
+  })
+
+  it('with single text node', () => {
+    // pending('work in progress')
+    expect(compileSnippet(runtime, `
+      <richtext>single</richtext>
+    `)).toEqual({
+      type: 'richtext',
+      attr: {
+        value: [{
+          type: 'span',
+          attr: {
+            value: 'single'
+          }
+        }]
+      }
+    })
+  })
+
+  describe('span', () => {
+    // pending('work in progress')
+
+    it('single node', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span>single</span>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: {
+              value: 'single'
+            }
+          }]
+        }
+      })
+    })
+
+    it('multiple node', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span>AAA</span>
+          <span>BBB</span>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: { value: 'AAA' }
+          }, {
+            type: 'span',
+            attr: { value: 'BBB' }
+          }]
+        }
+      })
+    })
+
+    it('with raw text', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          AAA
+          <span>BBB</span>CCC
+          <span>DDD</span>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: { value: 'AAA' }
+          }, {
+            type: 'span',
+            attr: { value: 'BBB' }
+          }, {
+            type: 'span',
+            attr: { value: 'CCC' }
+          }, {
+            type: 'span',
+            attr: { value: 'DDD' }
+          }]
+        }
+      })
+    })
+  })
+
+  describe('a', () => {
+    // pending('work in progress')
+
+    it('single node', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <a href="http://whatever.com"></a>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'a',
+            attr: { href: 'http://whatever.com' }
+          }]
+        }
+      })
+    })
+
+    it('multiple node', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <a href="http://a.whatever.com"></a>
+          <a href="http://b.whatever.com"></a>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'a',
+            attr: { href: 'http://a.whatever.com' }
+          }, {
+            type: 'a',
+            attr: { href: 'http://b.whatever.com' }
+          }]
+        }
+      })
+    })
+  })
+
+  describe('image', () => {
+    pending('work in progress')
+
+    it('single node', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <image src="path/to/profile.png"></image>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'image',
+            attr: { src: 'path/to/profile.png' }
+          }]
+        }
+      })
+    })
+
+    it('multiple node', () => {
+      // pending('work in progress')
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <image src="path/to/A.png"></image>
+          <image src="path/to/B.png"></image>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'image',
+            attr: { src: 'path/to/A.png' }
+          }, {
+            type: 'image',
+            attr: { src: 'path/to/B.png' }
+          }]
+        }
+      })
+    })
+
+    it('with width and height', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <image
+            style="width:150px;height:150px;"
+            src="path/to/profile.png">
+          </image>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'image',
+            style: { width: '150px', height: '150px' },
+            attr: { src: 'path/to/profile.png' }
+          }]
+        }
+      })
+    })
+  })
+
+  describe('nested', () => {
+    pending('work in progress')
+
+    it('span', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span>AAA
+            <span>
+              <span>BBB</span>
+              <span><span>CCC</span>DDD</span>
+            </span>
+          </span>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            children: [{
+              type: 'span',
+              attr: { value: 'AAA' }
+            }, {
+              type: 'span',
+              children: [{
+                type: 'span',
+                attr: { value: 'BBB' }
+              }, {
+                type: 'span',
+                children: [{
+                  type: 'span',
+                  attr: { value: 'CCC' }
+                }, {
+                  type: 'span',
+                  attr: { value: 'DDD' }
+                }]
+              }]
+            }]
+          }]
+        }
+      })
+    })
+
+    it('image and a', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span>title</span>
+          <a href="http://remote.com/xx.js">
+            <span>name</span>
+            <image src="path/to/yy.gif"></image>
+          </a>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: { value: 'title' }
+          }, {
+            type: 'a',
+            attr: { href: 'http://remote.com/xx.js' },
+            children: [{
+              type: 'span',
+              attr: { value: 'name' }
+            }, {
+              type: 'image',
+              attr: { src: 'path/to/yy.gif' }
+            }]
+          }]
+        }
+      })
+    })
+  })
+
+  describe('with styles', () => {
+    pending('work in progress')
+  })
+})

From 0ea2bb4fb4d9c4d846ae5852c871c472c17f4e34 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 10 Jul 2017 17:53:06 +0800
Subject: [PATCH 006/911] feat(weex): support nested components in richtext

---
 .../weex/runtime/components/richtext.js       | 53 +++++++++++--------
 test/weex/runtime/component/richtext.spec.js  | 41 +++++++++-----
 2 files changed, 60 insertions(+), 34 deletions(-)

diff --git a/src/platforms/weex/runtime/components/richtext.js b/src/platforms/weex/runtime/components/richtext.js
index 76e474fe2d3..5ad6259750f 100644
--- a/src/platforms/weex/runtime/components/richtext.js
+++ b/src/platforms/weex/runtime/components/richtext.js
@@ -1,17 +1,3 @@
-function parseChildren (h, options) {
-  const children = options._renderChildren
-  if (!children) {
-    return []
-  }
-
-  return children.map(vnode => {
-    if (!vnode.tag && vnode.text) {
-      return h('span', vnode.text)
-    }
-    return vnode
-  })
-}
-
 function getVNodeType (vnode) {
   const tagName = vnode.tag
   if (!tagName) {
@@ -20,6 +6,14 @@ function getVNodeType (vnode) {
   return tagName.replace(/vue\-component\-(\d+\-)?/, '')
 }
 
+function isSimpleSpan (vnode) {
+  return vnode.children && vnode.children.length === 1 && !vnode.children[0].tag
+}
+
+function trimCSSUnit (prop) {
+  return Number(prop.replace(/px$/i, '')) || prop
+}
+
 function convertVNodeChildren (children) {
   if (!children.length) {
     return
@@ -28,15 +22,34 @@ function convertVNodeChildren (children) {
     const type = getVNodeType(vnode)
     const props = { type }
 
-    // TODO: filter
+    // convert raw text node
+    if (!type) {
+      props.type = 'span'
+      props.attr = {
+        value: (vnode.text || '').trim()
+      }
+    }
+
     if (vnode.data) {
       props.style = vnode.data.staticStyle
       props.attr = vnode.data.attrs
+
+      // TODO: convert inline styles
+      if (props.style) {
+        for (const key in props.style) {
+          props.style[key] = trimCSSUnit(props.style[key])
+        }
+      }
+    }
+
+    if (type === 'span' && isSimpleSpan(vnode)) {
+      props.attr = props.attr || {}
+      props.attr.value = vnode.children[0].text.trim()
+      return props
     }
 
-    if (type === 'span') {
-      props.attr = {}
-      props.attr.value = vnode.text || vnode.children.map(c => c.text).join('').trim()
+    if (vnode.children && vnode.children.length) {
+      props.children = convertVNodeChildren(vnode.children)
     }
 
     return props
@@ -47,11 +60,9 @@ export default {
   name: 'richtext',
   abstract: true,
   render (h) {
-    const children = parseChildren(h, this.$options)
-    const values = convertVNodeChildren(children)
     return h('weex:richtext', {
       attrs: {
-        value: values
+        value: convertVNodeChildren(this.$options._renderChildren || [])
       }
     })
   }
diff --git a/test/weex/runtime/component/richtext.spec.js b/test/weex/runtime/component/richtext.spec.js
index 9362504016f..41bbcefda48 100644
--- a/test/weex/runtime/component/richtext.spec.js
+++ b/test/weex/runtime/component/richtext.spec.js
@@ -57,8 +57,6 @@ describe('richtext component', () => {
   })
 
   describe('span', () => {
-    // pending('work in progress')
-
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -126,8 +124,6 @@ describe('richtext component', () => {
   })
 
   describe('a', () => {
-    // pending('work in progress')
-
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -166,8 +162,6 @@ describe('richtext component', () => {
   })
 
   describe('image', () => {
-    pending('work in progress')
-
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -185,7 +179,6 @@ describe('richtext component', () => {
     })
 
     it('multiple node', () => {
-      // pending('work in progress')
       expect(compileSnippet(runtime, `
         <richtext>
           <image src="path/to/A.png"></image>
@@ -218,7 +211,7 @@ describe('richtext component', () => {
         attr: {
           value: [{
             type: 'image',
-            style: { width: '150px', height: '150px' },
+            style: { width: 150, height: 150 },
             attr: { src: 'path/to/profile.png' }
           }]
         }
@@ -227,8 +220,6 @@ describe('richtext component', () => {
   })
 
   describe('nested', () => {
-    pending('work in progress')
-
     it('span', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -273,7 +264,7 @@ describe('richtext component', () => {
         <richtext>
           <span>title</span>
           <a href="http://remote.com/xx.js">
-            <span>name</span>
+            <span><span>name</span></span>
             <image src="path/to/yy.gif"></image>
           </a>
         </richtext>
@@ -288,7 +279,10 @@ describe('richtext component', () => {
             attr: { href: 'http://remote.com/xx.js' },
             children: [{
               type: 'span',
-              attr: { value: 'name' }
+              children: [{
+                type: 'span',
+                attr: { value: 'name' }
+              }]
             }, {
               type: 'image',
               attr: { src: 'path/to/yy.gif' }
@@ -300,6 +294,27 @@ describe('richtext component', () => {
   })
 
   describe('with styles', () => {
-    pending('work in progress')
+    // pending('work in progress')
+    it('inline', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span style="font-size:16px;color:#FF6600;">ABCD</span>
+          <image style="width:40px;height:60px" src="path/to/A.png"></image>
+        </richtext>
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            style: { fontSize: 16, color: '#FF6600' },
+            attr: { value: 'ABCD' }
+          }, {
+            type: 'image',
+            style: { width: 40, height: 60 },
+            attr: { src: 'path/to/A.png' }
+          }]
+        }
+      })
+    })
   })
 })

From b60964256c876de2516977c776201ef56ab13fb7 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Tue, 18 Jul 2017 18:17:54 +0800
Subject: [PATCH 007/911] feat(weex richtext): support to parse styles and
 classList

---
 .../weex/runtime/components/richtext.js       |  32 +-
 test/weex/runtime/component/richtext.spec.js  | 298 +++++++++++++++++-
 2 files changed, 317 insertions(+), 13 deletions(-)

diff --git a/src/platforms/weex/runtime/components/richtext.js b/src/platforms/weex/runtime/components/richtext.js
index 5ad6259750f..ddfa3340bad 100644
--- a/src/platforms/weex/runtime/components/richtext.js
+++ b/src/platforms/weex/runtime/components/richtext.js
@@ -11,7 +11,28 @@ function isSimpleSpan (vnode) {
 }
 
 function trimCSSUnit (prop) {
-  return Number(prop.replace(/px$/i, '')) || prop
+  return Number(String(prop).replace(/px$/i, '')) || prop
+}
+
+function parseStyle (vnode) {
+  const { staticStyle, staticClass } = vnode.data
+  if (vnode.data.style || vnode.data.class || staticStyle || staticClass) {
+    const styles = Object.assign({}, staticStyle, vnode.data.style)
+
+    // TODO: more reliable
+    const cssMap = vnode.context.$options.style
+    const classList = [].concat(staticClass, vnode.data.class)
+    classList.forEach(name => {
+      if (name && cssMap[name]) {
+        Object.assign(styles, cssMap[name])
+      }
+    })
+
+    for (const key in styles) {
+      styles[key] = trimCSSUnit(styles[key])
+    }
+    return styles
+  }
 }
 
 function convertVNodeChildren (children) {
@@ -31,15 +52,8 @@ function convertVNodeChildren (children) {
     }
 
     if (vnode.data) {
-      props.style = vnode.data.staticStyle
+      props.style = parseStyle(vnode)
       props.attr = vnode.data.attrs
-
-      // TODO: convert inline styles
-      if (props.style) {
-        for (const key in props.style) {
-          props.style[key] = trimCSSUnit(props.style[key])
-        }
-      }
     }
 
     if (type === 'span' && isSimpleSpan(vnode)) {
diff --git a/test/weex/runtime/component/richtext.spec.js b/test/weex/runtime/component/richtext.spec.js
index 41bbcefda48..20bc8be2a4b 100644
--- a/test/weex/runtime/component/richtext.spec.js
+++ b/test/weex/runtime/component/richtext.spec.js
@@ -5,17 +5,17 @@ import {
   createInstance
 } from '../../helpers/index'
 
-function compileSnippet (runtime, snippet) {
+function compileSnippet (runtime, snippet, additional) {
   const { render, staticRenderFns } = compileAndStringify(`<div>${snippet}</div>`)
   const instance = createInstance(runtime, `
     new Vue({
+      el: 'body',
       render: ${render},
       staticRenderFns: ${staticRenderFns},
-      el: 'body'
+      ${additional}
     })
   `)
-  const result = instance.getRealRoot().children[0]
-  return result
+  return instance.getRealRoot().children[0]
 }
 
 describe('richtext component', () => {
@@ -57,6 +57,7 @@ describe('richtext component', () => {
   })
 
   describe('span', () => {
+    // pending('work in progress')
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -124,6 +125,7 @@ describe('richtext component', () => {
   })
 
   describe('a', () => {
+    // pending('work in progress')
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -162,6 +164,7 @@ describe('richtext component', () => {
   })
 
   describe('image', () => {
+    // pending('work in progress')
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -220,6 +223,7 @@ describe('richtext component', () => {
   })
 
   describe('nested', () => {
+    // pending('work in progress')
     it('span', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -296,6 +300,7 @@ describe('richtext component', () => {
   describe('with styles', () => {
     // pending('work in progress')
     it('inline', () => {
+      // pending('work in progress')
       expect(compileSnippet(runtime, `
         <richtext>
           <span style="font-size:16px;color:#FF6600;">ABCD</span>
@@ -316,5 +321,290 @@ describe('richtext component', () => {
         }
       })
     })
+
+    it('class list', () => {
+      // pending('work in progress')
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <image class="icon" src="path/to/A.png"></image>
+          <span class="title large">ABCD</span>
+        </richtext>
+      `, `
+        style: {
+          title: { color: '#FF6600' },
+          large: { fontSize: 24 },
+          icon: { width: 40, height: 60 }
+        }
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'image',
+            style: { width: 40, height: 60 },
+            attr: { src: 'path/to/A.png' }
+          }, {
+            type: 'span',
+            style: { fontSize: 24, color: '#FF6600' },
+            attr: { value: 'ABCD' }
+          }]
+        }
+      })
+    })
+  })
+
+  describe('data binding', () => {
+    // pending('work in progress')
+    it('simple', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span>{{name}}</span>
+        </richtext>
+      `, `data: { name: 'ABCDEFG' }`)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: { value: 'ABCDEFG' }
+          }]
+        }
+      })
+    })
+
+    it('nested', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span>{{a}}</span>
+          <span>{{b}}<span>{{c.d}}</span></span>
+          <span>{{e}}</span>
+        </richtext>
+      `, `data: { a: 'A', b: 'B', c: { d: 'CD' }, e: 'E' }`))
+      .toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: { value: 'A' }
+          }, {
+            type: 'span',
+            children: [{
+              type: 'span',
+              attr: { value: 'B' }
+            }, {
+              type: 'span',
+              attr: { value: 'CD' }
+            }]
+          }, {
+            type: 'span',
+            attr: { value: 'E' }
+          }]
+        }
+      })
+    })
+
+    it('update', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span>{{name}}</span>
+        </richtext>
+      `, `
+        data: { name: 'default' },
+        created: function () {
+          this.name = 'updated'
+        }
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: { value: 'updated' }
+          }]
+        }
+      })
+    })
+
+    it('attribute', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span :label="label">{{name}}</span>
+        </richtext>
+      `, `
+        data: {
+          label: 'uid',
+          name: '10100'
+        }
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: {
+              label: 'uid',
+              value: '10100'
+            }
+          }]
+        }
+      })
+    })
+
+    it('update attribute', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span :label="label">{{name}}</span>
+        </richtext>
+      `, `
+        data: {
+          label: 'name',
+          name: 'Hanks'
+        },
+        created: function () {
+          this.label = 'uid';
+          this.name = '10100';
+        }
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            attr: {
+              label: 'uid',
+              value: '10100'
+            }
+          }]
+        }
+      })
+    })
+
+    it('inline style', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span :style="styleObject">ABCD</span>
+          <span :style="{ textAlign: align, color: 'red' }">EFGH</span>
+        </richtext>
+      `, `
+        data: {
+          styleObject: { fontSize: '32px', color: '#F6F660' },
+          align: 'center'
+        }
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            style: { fontSize: 32, color: '#F6F660' },
+            attr: { value: 'ABCD' }
+          }, {
+            type: 'span',
+            style: { textAlign: 'center', color: 'red' },
+            attr: { value: 'EFGH' }
+          }]
+        }
+      })
+    })
+
+    it('class list', () => {
+      // pending('work in progress')
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <image :class="classList" src="path/to/A.png"></image>
+          <span :class="['title', size]">ABCD</span>
+          <span class="large" style="color:#F6F0F4">EFGH</span>
+        </richtext>
+      `, `
+        style: {
+          title: { color: '#FF6600' },
+          large: { fontSize: 24 },
+          icon: { width: 40, height: 60 }
+        },
+        data: {
+          classList: ['unknown'],
+          size: 'small'
+        },
+        created: function () {
+          this.classList = ['icon'];
+          this.size = 'large';
+        }
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'image',
+            style: { width: 40, height: 60 },
+            attr: { src: 'path/to/A.png' }
+          }, {
+            type: 'span',
+            style: { fontSize: 24, color: '#FF6600' },
+            attr: { value: 'ABCD' }
+          }, {
+            type: 'span',
+            style: { fontSize: 24, color: '#F6F0F4' },
+            attr: { value: 'EFGH' }
+          }]
+        }
+      })
+    })
+
+    it('update inline style', () => {
+      expect(compileSnippet(runtime, `
+        <richtext>
+          <span :style="styleObject">ABCD</span>
+          <span :style="{ textAlign: align, color: 'red' }">EFGH</span>
+        </richtext>
+      `, `
+        data: {
+          styleObject: { fontSize: '32px', color: '#F6F660' }
+        },
+        created: function () {
+          this.styleObject = { fontSize: '24px', color: 'blue' }
+          this.styleObject.color = '#ABCDEF'
+          this.align = 'left'
+        }
+      `)).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            style: { fontSize: 24, color: '#ABCDEF' },
+            attr: { value: 'ABCD' }
+          }, {
+            type: 'span',
+            style: { textAlign: 'left', color: 'red' },
+            attr: { value: 'EFGH' }
+          }]
+        }
+      })
+    })
+  })
+
+  describe('bind events', () => {
+    pending('work in progress')
+    it('inline', () => {
+      const { render, staticRenderFns } = compileAndStringify(`
+        <div>
+        <richtext>
+          <span @click="handler">Button</span>
+        </richtext>
+        </div>
+      `)
+      const instance = createInstance(runtime, `
+        new Vue({
+          el: 'body',
+          render: ${render},
+          staticRenderFns: ${staticRenderFns},
+          methods: {
+            handler: function () {}
+          }
+        })
+      `)
+      expect(instance.getRealRoot().children[0]).toEqual({
+        type: 'richtext',
+        attr: {
+          value: [{
+            type: 'span',
+            events: { click: 'handler' },
+            attr: { value: 'Button' }
+          }]
+        }
+      })
+    })
   })
 })

From d627161a91b77ca15e0e30c0313abb33d6c17cbc Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Tue, 25 Jul 2017 17:03:18 +0800
Subject: [PATCH 008/911] feat(weex richtext): support events and add more test
 cases

---
 .../weex/runtime/components/richtext.js       |  35 +++---
 test/weex/runtime/component/richtext.spec.js  | 108 ++++++++++++++++--
 2 files changed, 122 insertions(+), 21 deletions(-)

diff --git a/src/platforms/weex/runtime/components/richtext.js b/src/platforms/weex/runtime/components/richtext.js
index ddfa3340bad..5152ec188dd 100644
--- a/src/platforms/weex/runtime/components/richtext.js
+++ b/src/platforms/weex/runtime/components/richtext.js
@@ -1,9 +1,8 @@
 function getVNodeType (vnode) {
-  const tagName = vnode.tag
-  if (!tagName) {
+  if (!vnode.tag) {
     return ''
   }
-  return tagName.replace(/vue\-component\-(\d+\-)?/, '')
+  return vnode.tag.replace(/vue\-component\-(\d+\-)?/, '')
 }
 
 function isSimpleSpan (vnode) {
@@ -11,10 +10,15 @@ function isSimpleSpan (vnode) {
 }
 
 function trimCSSUnit (prop) {
+  // TODO: more reliable
   return Number(String(prop).replace(/px$/i, '')) || prop
 }
 
 function parseStyle (vnode) {
+  if (!vnode || !vnode.data) {
+    return
+  }
+
   const { staticStyle, staticClass } = vnode.data
   if (vnode.data.style || vnode.data.class || staticStyle || staticClass) {
     const styles = Object.assign({}, staticStyle, vnode.data.style)
@@ -39,6 +43,7 @@ function convertVNodeChildren (children) {
   if (!children.length) {
     return
   }
+
   return children.map(vnode => {
     const type = getVNodeType(vnode)
     const props = { type }
@@ -49,17 +54,20 @@ function convertVNodeChildren (children) {
       props.attr = {
         value: (vnode.text || '').trim()
       }
-    }
-
-    if (vnode.data) {
+    } else {
       props.style = parseStyle(vnode)
-      props.attr = vnode.data.attrs
-    }
+      if (vnode.data) {
+        props.attr = vnode.data.attrs
+        if (vnode.data.on) {
+          props.events = vnode.data.on
+        }
+      }
 
-    if (type === 'span' && isSimpleSpan(vnode)) {
-      props.attr = props.attr || {}
-      props.attr.value = vnode.children[0].text.trim()
-      return props
+      if (type === 'span' && isSimpleSpan(vnode)) {
+        props.attr = props.attr || {}
+        props.attr.value = vnode.children[0].text.trim()
+        return props
+      }
     }
 
     if (vnode.children && vnode.children.length) {
@@ -72,9 +80,10 @@ function convertVNodeChildren (children) {
 
 export default {
   name: 'richtext',
-  abstract: true,
+  // abstract: true,
   render (h) {
     return h('weex:richtext', {
+      on: this._events,
       attrs: {
         value: convertVNodeChildren(this.$options._renderChildren || [])
       }
diff --git a/test/weex/runtime/component/richtext.spec.js b/test/weex/runtime/component/richtext.spec.js
index 20bc8be2a4b..218032d6a65 100644
--- a/test/weex/runtime/component/richtext.spec.js
+++ b/test/weex/runtime/component/richtext.spec.js
@@ -577,12 +577,12 @@ describe('richtext component', () => {
 
   describe('bind events', () => {
     pending('work in progress')
-    it('inline', () => {
+    it('inline', (done) => {
       const { render, staticRenderFns } = compileAndStringify(`
         <div>
-        <richtext>
-          <span @click="handler">Button</span>
-        </richtext>
+          <richtext>
+            <span @click="handler">{{label}}</span>
+          </richtext>
         </div>
       `)
       const instance = createInstance(runtime, `
@@ -590,21 +590,113 @@ describe('richtext component', () => {
           el: 'body',
           render: ${render},
           staticRenderFns: ${staticRenderFns},
+          data: { label: 'AAA' },
           methods: {
-            handler: function () {}
+            handler: function () {
+              this.label = 'BBB'
+            }
           }
         })
       `)
-      expect(instance.getRealRoot().children[0]).toEqual({
+      // instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
+      const richtext = instance.doc.body.children[0]
+      const span = richtext.children[0].ref
+      instance.$fireEvent(span.ref, 'click', {})
+      setTimeout(() => {
+        expect(instance.getRealRoot().children[0]).toEqual({
+          type: 'richtext',
+          event: ['click'],
+          attr: {
+            value: [{
+              type: 'span',
+              attr: { value: 'BBB' }
+            }]
+          }
+        })
+        done()
+      }, 0)
+    })
+  })
+
+  describe('itself', () => {
+    // pending('work in progress')
+    it('inline styles', () => {
+      expect(compileSnippet(runtime, `
+        <richtext style="background-color:red">
+          <span>empty</span>
+        </richtext>
+      `)).toEqual({
         type: 'richtext',
+        style: { backgroundColor: 'red' },
         attr: {
           value: [{
             type: 'span',
-            events: { click: 'handler' },
-            attr: { value: 'Button' }
+            attr: { value: 'empty' }
           }]
         }
       })
     })
+
+    it('class list', () => {
+      // pending('work in progress')
+      expect(compileSnippet(runtime, `
+        <richtext class="title">
+          <span class="large">ABCD</span>
+        </richtext>
+      `, `
+        style: {
+          title: { backgroundColor: '#FF6600', height: 200 },
+          large: { fontSize: 24 }
+        }
+      `)).toEqual({
+        type: 'richtext',
+        style: { backgroundColor: '#FF6600', height: 200 },
+        attr: {
+          value: [{
+            type: 'span',
+            style: { fontSize: 24 },
+            attr: { value: 'ABCD' }
+          }]
+        }
+      })
+    })
+
+    it('bind events', (done) => {
+      const { render, staticRenderFns } = compileAndStringify(`
+        <div>
+          <richtext @click="handler">
+            <span>Label: {{label}}</span>
+          </richtext>
+        </div>
+      `)
+      const instance = createInstance(runtime, `
+        new Vue({
+          el: 'body',
+          render: ${render},
+          staticRenderFns: ${staticRenderFns},
+          data: { label: 'AAA' },
+          methods: {
+            handler: function () {
+              this.label = 'BBB'
+            }
+          }
+        })
+      `)
+      const richtext = instance.doc.body.children[0]
+      instance.$fireEvent(richtext.ref, 'click', {})
+      setTimeout(() => {
+        expect(instance.getRealRoot().children[0]).toEqual({
+          type: 'richtext',
+          event: ['click'],
+          attr: {
+            value: [{
+              type: 'span',
+              attr: { value: 'Label: BBB' }
+            }]
+          }
+        })
+        done()
+      }, 0)
+    })
   })
 })

From 3e4d926336dfdbb5cc4f9d0daed44eb84b53b0de Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Wed, 26 Jul 2017 14:42:07 +0800
Subject: [PATCH 009/911] feat(weex richtext): treat richtext as runtime
 components

---
 src/platforms/weex/entry-framework.js         |   5 +-
 .../weex/runtime/components/richtext.js       |  11 +-
 src/platforms/weex/runtime/index.js           |   2 +
 src/platforms/weex/util/index.js              |   7 +-
 test/weex/runtime/component/richtext.spec.js  | 113 +++++++++---------
 5 files changed, 74 insertions(+), 64 deletions(-)

diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 96636445cbc..6758c0e7c90 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -291,8 +291,11 @@ function createVueModuleInstance (instanceId, moduleGetter) {
   // components
   const weexRegex = /^weex:/i
   const isReservedTag = Vue.config.isReservedTag || (() => false)
+  const isRuntimeComponent = Vue.config.isRuntimeComponent || (() => false)
   Vue.config.isReservedTag = name => {
-    return components[name] || isReservedTag(name) || weexRegex.test(name)
+    return (!isRuntimeComponent(name) && components[name]) ||
+      isReservedTag(name) ||
+      weexRegex.test(name)
   }
   Vue.config.parsePlatformTagName = name => name.replace(weexRegex, '')
 
diff --git a/src/platforms/weex/runtime/components/richtext.js b/src/platforms/weex/runtime/components/richtext.js
index 5152ec188dd..dc2b0d57d58 100644
--- a/src/platforms/weex/runtime/components/richtext.js
+++ b/src/platforms/weex/runtime/components/richtext.js
@@ -9,9 +9,13 @@ function isSimpleSpan (vnode) {
   return vnode.children && vnode.children.length === 1 && !vnode.children[0].tag
 }
 
+const cssLengthRE = /^([+-]?[0-9]+(\.[0-9]+)?)(px|em|ex|%|in|cm|mm|pt|pc)$/i
 function trimCSSUnit (prop) {
-  // TODO: more reliable
-  return Number(String(prop).replace(/px$/i, '')) || prop
+  const res = String(prop).match(cssLengthRE)
+  if (res) {
+    return Number(res[1])
+  }
+  return prop
 }
 
 function parseStyle (vnode) {
@@ -23,8 +27,7 @@ function parseStyle (vnode) {
   if (vnode.data.style || vnode.data.class || staticStyle || staticClass) {
     const styles = Object.assign({}, staticStyle, vnode.data.style)
 
-    // TODO: more reliable
-    const cssMap = vnode.context.$options.style
+    const cssMap = vnode.context.$options.style || {}
     const classList = [].concat(staticClass, vnode.data.class)
     classList.forEach(name => {
       if (name && cssMap[name]) {
diff --git a/src/platforms/weex/runtime/index.js b/src/platforms/weex/runtime/index.js
index f8aa0d12c45..812dde9ee22 100755
--- a/src/platforms/weex/runtime/index.js
+++ b/src/platforms/weex/runtime/index.js
@@ -10,12 +10,14 @@ import {
   query,
   mustUseProp,
   isReservedTag,
+  isRuntimeComponent,
   isUnknownElement
 } from 'weex/util/index'
 
 // install platform specific utils
 Vue.config.mustUseProp = mustUseProp
 Vue.config.isReservedTag = isReservedTag
+Vue.config.isRuntimeComponent = isRuntimeComponent
 Vue.config.isUnknownElement = isUnknownElement
 
 // install platform runtime directives and components
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index e5cc8e81027..a035be3a191 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -5,7 +5,7 @@ import { makeMap } from 'shared/util'
 export const isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
   'a,div,img,image,text,span,input,switch,textarea,spinner,select,' +
-  'slider,slider-neighbor,indicator,trisition,trisition-group,canvas,' +
+  'slider,slider-neighbor,indicator,canvas,' +
   'list,cell,header,loading,loading-indicator,refresh,scrollable,scroller,' +
   'video,web,embed,tabbar,tabheader,datepicker,timepicker,marquee,countdown',
   true
@@ -19,6 +19,11 @@ export const canBeLeftOpenTag = makeMap(
   true
 )
 
+export const isRuntimeComponent = makeMap(
+  'richtext,trisition,trisition-group',
+  true
+)
+
 export const isUnaryTag = makeMap(
   'embed,img,image,input,link,meta',
   true
diff --git a/test/weex/runtime/component/richtext.spec.js b/test/weex/runtime/component/richtext.spec.js
index 218032d6a65..9dd3637548e 100644
--- a/test/weex/runtime/component/richtext.spec.js
+++ b/test/weex/runtime/component/richtext.spec.js
@@ -31,7 +31,6 @@ describe('richtext component', () => {
   })
 
   it('with no child', () => {
-    // pending('work in progress')
     expect(compileSnippet(runtime, `
       <richtext></richtext>
     `)).toEqual({
@@ -40,7 +39,6 @@ describe('richtext component', () => {
   })
 
   it('with single text node', () => {
-    // pending('work in progress')
     expect(compileSnippet(runtime, `
       <richtext>single</richtext>
     `)).toEqual({
@@ -57,7 +55,6 @@ describe('richtext component', () => {
   })
 
   describe('span', () => {
-    // pending('work in progress')
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -125,7 +122,6 @@ describe('richtext component', () => {
   })
 
   describe('a', () => {
-    // pending('work in progress')
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -164,7 +160,6 @@ describe('richtext component', () => {
   })
 
   describe('image', () => {
-    // pending('work in progress')
     it('single node', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -223,7 +218,6 @@ describe('richtext component', () => {
   })
 
   describe('nested', () => {
-    // pending('work in progress')
     it('span', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -298,13 +292,11 @@ describe('richtext component', () => {
   })
 
   describe('with styles', () => {
-    // pending('work in progress')
     it('inline', () => {
-      // pending('work in progress')
       expect(compileSnippet(runtime, `
         <richtext>
           <span style="font-size:16px;color:#FF6600;">ABCD</span>
-          <image style="width:40px;height:60px" src="path/to/A.png"></image>
+          <image style="width:33.33px;height:66.67px" src="path/to/A.png"></image>
         </richtext>
       `)).toEqual({
         type: 'richtext',
@@ -315,7 +307,7 @@ describe('richtext component', () => {
             attr: { value: 'ABCD' }
           }, {
             type: 'image',
-            style: { width: 40, height: 60 },
+            style: { width: 33.33, height: 66.67 },
             attr: { src: 'path/to/A.png' }
           }]
         }
@@ -323,7 +315,6 @@ describe('richtext component', () => {
     })
 
     it('class list', () => {
-      // pending('work in progress')
       expect(compileSnippet(runtime, `
         <richtext>
           <image class="icon" src="path/to/A.png"></image>
@@ -353,7 +344,6 @@ describe('richtext component', () => {
   })
 
   describe('data binding', () => {
-    // pending('work in progress')
     it('simple', () => {
       expect(compileSnippet(runtime, `
         <richtext>
@@ -502,7 +492,6 @@ describe('richtext component', () => {
     })
 
     it('class list', () => {
-      // pending('work in progress')
       expect(compileSnippet(runtime, `
         <richtext>
           <image :class="classList" src="path/to/A.png"></image>
@@ -575,51 +564,7 @@ describe('richtext component', () => {
     })
   })
 
-  describe('bind events', () => {
-    pending('work in progress')
-    it('inline', (done) => {
-      const { render, staticRenderFns } = compileAndStringify(`
-        <div>
-          <richtext>
-            <span @click="handler">{{label}}</span>
-          </richtext>
-        </div>
-      `)
-      const instance = createInstance(runtime, `
-        new Vue({
-          el: 'body',
-          render: ${render},
-          staticRenderFns: ${staticRenderFns},
-          data: { label: 'AAA' },
-          methods: {
-            handler: function () {
-              this.label = 'BBB'
-            }
-          }
-        })
-      `)
-      // instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
-      const richtext = instance.doc.body.children[0]
-      const span = richtext.children[0].ref
-      instance.$fireEvent(span.ref, 'click', {})
-      setTimeout(() => {
-        expect(instance.getRealRoot().children[0]).toEqual({
-          type: 'richtext',
-          event: ['click'],
-          attr: {
-            value: [{
-              type: 'span',
-              attr: { value: 'BBB' }
-            }]
-          }
-        })
-        done()
-      }, 0)
-    })
-  })
-
   describe('itself', () => {
-    // pending('work in progress')
     it('inline styles', () => {
       expect(compileSnippet(runtime, `
         <richtext style="background-color:red">
@@ -638,7 +583,6 @@ describe('richtext component', () => {
     })
 
     it('class list', () => {
-      // pending('work in progress')
       expect(compileSnippet(runtime, `
         <richtext class="title">
           <span class="large">ABCD</span>
@@ -661,6 +605,33 @@ describe('richtext component', () => {
       })
     })
 
+    it('update styles', () => {
+      expect(compileSnippet(runtime, `
+        <richtext :class="classList" :style="{ backgroundColor: color }">
+          <span class="large">ABCD</span>
+        </richtext>
+      `, `
+        data: { classList: ['unknow'], color: '#FF6600' },
+        style: {
+          title: { height: 200 },
+          large: { fontSize: 24 }
+        },
+        created: function () {
+          this.classList = ['title']
+        }
+      `)).toEqual({
+        type: 'richtext',
+        style: { backgroundColor: '#FF6600', height: 200 },
+        attr: {
+          value: [{
+            type: 'span',
+            style: { fontSize: 24 },
+            attr: { value: 'ABCD' }
+          }]
+        }
+      })
+    })
+
     it('bind events', (done) => {
       const { render, staticRenderFns } = compileAndStringify(`
         <div>
@@ -698,5 +669,31 @@ describe('richtext component', () => {
         done()
       }, 0)
     })
+
+    it('v-for', () => {
+      expect(compileSnippet(runtime, `
+        <div>
+          <richtext v-for="k in labels">
+            <span>{{k}}</span>
+          </richtext>
+        </div>
+      `, `
+        data: {
+          labels: ['A', 'B', 'C']
+        }
+      `)).toEqual({
+        type: 'div',
+        children: [{
+          type: 'richtext',
+          attr: { value: [{ type: 'span', attr: { value: 'A' }}] }
+        }, {
+          type: 'richtext',
+          attr: { value: [{ type: 'span', attr: { value: 'B' }}] }
+        }, {
+          type: 'richtext',
+          attr: { value: [{ type: 'span', attr: { value: 'C' }}] }
+        }]
+      })
+    })
   })
 })

From 9bded22a83b6fb9a89a32009e7f47f6201e167a3 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Wed, 26 Jul 2017 17:07:51 +0800
Subject: [PATCH 010/911] test(weex richtext): rename the file path of richtext
 test

---
 test/weex/runtime/{component => components}/richtext.spec.js | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename test/weex/runtime/{component => components}/richtext.spec.js (100%)

diff --git a/test/weex/runtime/component/richtext.spec.js b/test/weex/runtime/components/richtext.spec.js
similarity index 100%
rename from test/weex/runtime/component/richtext.spec.js
rename to test/weex/runtime/components/richtext.spec.js

From a8146c0c1074cfd8214a62309c372b25035fd838 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Fri, 28 Jul 2017 12:46:40 +0800
Subject: [PATCH 011/911] feat(weex): remove __weex_require_module__ api

---
 src/platforms/weex/entry-framework.js |  4 +---
 test/weex/runtime/framework.spec.js   | 12 ++++++------
 2 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 6758c0e7c90..375d39bbc2a 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -91,9 +91,7 @@ export function createInstance (
   // It will declare some instance variables like `Vue`, HTML5 Timer APIs etc.
   const instanceVars = Object.assign({
     Vue,
-    weex: weexInstanceVar,
-    // deprecated
-    __weex_require_module__: weexInstanceVar.requireModule // eslint-disable-line
+    weex: weexInstanceVar
   }, timerAPIs, env.services)
 
   if (!callFunctionNative(instanceVars, appCode)) {
diff --git a/test/weex/runtime/framework.spec.js b/test/weex/runtime/framework.spec.js
index f280c345f19..e11edaa3e24 100644
--- a/test/weex/runtime/framework.spec.js
+++ b/test/weex/runtime/framework.spec.js
@@ -261,7 +261,7 @@ describe('framework APIs', () => {
 
     const instance = new Instance(runtime)
     framework.createInstance(instance.id, `
-      const moduleFoo = __weex_require_module__('foo')
+      const moduleFoo = weex.requireModule('foo')
       new Vue({
         data: {
           x: 'Hello'
@@ -361,9 +361,9 @@ describe('framework APIs', () => {
 
     const instance = new Instance(runtime)
     framework.createInstance(instance.id, `
-      const moduleFoo = __weex_require_module__('foo')
-      const moduleBar = __weex_require_module__('bar')
-      const moduleBaz = __weex_require_module__('baz')
+      const moduleFoo = weex.requireModule('foo')
+      const moduleBar = weex.requireModule('bar')
+      const moduleBaz = weex.requireModule('baz')
       new Vue({
         render: function (createElement) {
           const value = []
@@ -592,7 +592,7 @@ describe('framework APIs', () => {
 
     const instance = new Instance(runtime)
     framework.createInstance(instance.id, `
-      const moduleFoo = __weex_require_module__('foo')
+      const moduleFoo = weex.requireModule('foo')
       new Vue({
         mounted: function () {
           moduleFoo.a(a => a + 1)
@@ -624,7 +624,7 @@ describe('framework APIs', () => {
 
     const instance = new Instance(runtime)
     framework.createInstance(instance.id, `
-      const moduleFoo = __weex_require_module__('foo')
+      const moduleFoo = weex.requireModule('foo')
       new Vue({
         mounted: function () {
           moduleFoo.a(this.$refs.x)

From f975fac2a8657590dcc23ea8ccae791d125bc935 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Fri, 28 Jul 2017 12:53:08 +0800
Subject: [PATCH 012/911] feat(weex): wrap IFFE for appCode

---
 src/platforms/weex/entry-framework.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 375d39bbc2a..14e1b189cbc 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -94,6 +94,8 @@ export function createInstance (
     weex: weexInstanceVar
   }, timerAPIs, env.services)
 
+  appCode = `(function(global){ \n${appCode}\n })(Object.create(this))`
+
   if (!callFunctionNative(instanceVars, appCode)) {
     // If failed to compile functionBody on native side,
     // fallback to 'callFunction()'.

From 0dc27dcdec72c1c2e12fb49fb95dceca45e84115 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Tue, 15 Aug 2017 16:42:28 +0800
Subject: [PATCH 013/911] feat(weex): return instance in createInstance

---
 src/platforms/weex/entry-framework.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 14e1b189cbc..303ad36b5f0 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -104,6 +104,8 @@ export function createInstance (
 
   // Send `createFinish` signal to native.
   instance.document.taskCenter.send('dom', { action: 'createFinish' }, [])
+
+  return instance
 }
 
 /**

From 5091e2c9847601e329ac36d17eae90bb5cb77a91 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 29 Aug 2017 16:42:54 +0200
Subject: [PATCH 014/911] fix(ssr): address possible xss vector

---
 src/platforms/web/server/modules/attrs.js |  2 +-
 test/ssr/ssr-string.spec.js               | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/server/modules/attrs.js b/src/platforms/web/server/modules/attrs.js
index 544350bcde2..d1ebc76b9db 100644
--- a/src/platforms/web/server/modules/attrs.js
+++ b/src/platforms/web/server/modules/attrs.js
@@ -50,7 +50,7 @@ export function renderAttr (key: string, value: string): string {
   } else if (isEnumeratedAttr(key)) {
     return ` ${key}="${isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'}"`
   } else if (!isFalsyAttrValue(value)) {
-    return ` ${key}="${typeof value === 'string' ? cachedEscape(value) : value}"`
+    return ` ${key}="${cachedEscape(String(value))}"`
   }
   return ''
 }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 3dfd3b442ae..24c20f9227f 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -821,6 +821,19 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('should prevent script xss with v-bind object syntax + array value', done => {
+    renderVmWithOptions({
+      data: {
+        test: ['"><script>alert(1)</script><!--"']
+      },
+      template: `<div v-bind="{ test }"></div>`
+    }, res => {
+      console.log(res)
+      expect(res).not.toContain(`<script>alert(1)</script>`)
+      done()
+    })
+  })
+
   it('v-if', done => {
     renderVmWithOptions({
       template: `

From f40da5dbf2f01b417a7487d15b43cfd3aeb02a8f Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Tue, 29 Aug 2017 23:17:38 +0800
Subject: [PATCH 015/911] fix(v-model) selected option not updated properly
 under IE11 (#6213)

fix #6209
---
 src/platforms/web/runtime/directives/model.js | 71 ++++++++++---------
 1 file changed, 36 insertions(+), 35 deletions(-)

diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index ee355978421..eee454302b6 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -22,14 +22,7 @@ if (isIE9) {
 export default {
   inserted (el, binding, vnode) {
     if (vnode.tag === 'select') {
-      const cb = () => {
-        setSelected(el, binding, vnode.context)
-      }
-      cb()
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0)
-      }
+      setSelected(el, binding, vnode.context)
       el._vOptions = [].map.call(el.options, getValue)
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers
@@ -67,37 +60,45 @@ export default {
 }
 
 function setSelected (el, binding, vm) {
-  const value = binding.value
-  const isMultiple = el.multiple
-  if (isMultiple && !Array.isArray(value)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      `<select multiple v-model="${binding.expression}"> ` +
-      `expects an Array value for its binding, but got ${
-        Object.prototype.toString.call(value).slice(8, -1)
-      }`,
-      vm
-    )
-    return
-  }
-  let selected, option
-  for (let i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i]
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1
-      if (option.selected !== selected) {
-        option.selected = selected
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i
+  const cb = () => {
+    const value = binding.value
+    const isMultiple = el.multiple
+    if (isMultiple && !Array.isArray(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        `<select multiple v-model="${binding.expression}"> ` +
+        `expects an Array value for its binding, but got ${
+          Object.prototype.toString.call(value).slice(8, -1)
+        }`,
+        vm
+      )
+      return
+    }
+    let selected, option
+    for (let i = 0, l = el.options.length; i < l; i++) {
+      option = el.options[i]
+      if (isMultiple) {
+        selected = looseIndexOf(value, getValue(option)) > -1
+        if (option.selected !== selected) {
+          option.selected = selected
+        }
+      } else {
+        if (looseEqual(getValue(option), value)) {
+          if (el.selectedIndex !== i) {
+            el.selectedIndex = i
+          }
+          return
         }
-        return
       }
     }
+    if (!isMultiple) {
+      el.selectedIndex = -1
+    }
   }
-  if (!isMultiple) {
-    el.selectedIndex = -1
+
+  cb()
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(cb, 0)
   }
 }
 

From 41d774d112946f986bf0b0e3f30fd962c01ceba2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 29 Aug 2017 17:23:00 +0200
Subject: [PATCH 016/911] perf(v-model): tweak setSelected

---
 src/platforms/web/runtime/directives/model.js | 72 ++++++++++---------
 1 file changed, 37 insertions(+), 35 deletions(-)

diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index eee454302b6..5930e2d7ba5 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -60,45 +60,47 @@ export default {
 }
 
 function setSelected (el, binding, vm) {
-  const cb = () => {
-    const value = binding.value
-    const isMultiple = el.multiple
-    if (isMultiple && !Array.isArray(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        `<select multiple v-model="${binding.expression}"> ` +
-        `expects an Array value for its binding, but got ${
-          Object.prototype.toString.call(value).slice(8, -1)
-        }`,
-        vm
-      )
-      return
-    }
-    let selected, option
-    for (let i = 0, l = el.options.length; i < l; i++) {
-      option = el.options[i]
-      if (isMultiple) {
-        selected = looseIndexOf(value, getValue(option)) > -1
-        if (option.selected !== selected) {
-          option.selected = selected
-        }
-      } else {
-        if (looseEqual(getValue(option), value)) {
-          if (el.selectedIndex !== i) {
-            el.selectedIndex = i
-          }
-          return
+  actuallySetSelected(el, binding, vm)
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(() => {
+      actuallySetSelected(el, binding, vm)
+    }, 0)
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  const value = binding.value
+  const isMultiple = el.multiple
+  if (isMultiple && !Array.isArray(value)) {
+    process.env.NODE_ENV !== 'production' && warn(
+      `<select multiple v-model="${binding.expression}"> ` +
+      `expects an Array value for its binding, but got ${
+        Object.prototype.toString.call(value).slice(8, -1)
+      }`,
+      vm
+    )
+    return
+  }
+  let selected, option
+  for (let i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i]
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1
+      if (option.selected !== selected) {
+        option.selected = selected
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i
         }
+        return
       }
     }
-    if (!isMultiple) {
-      el.selectedIndex = -1
-    }
   }
-
-  cb()
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(cb, 0)
+  if (!isMultiple) {
+    el.selectedIndex = -1
   }
 }
 

From d4d553ced75d8c73e75b85cec398be4b09f6f669 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Wed, 30 Aug 2017 00:52:19 +0800
Subject: [PATCH 017/911] fix(v-model): avoid unnecessary change event on
 select options change

fix #6193
via #6194
---
 src/platforms/web/runtime/directives/model.js | 13 ++++++++-
 .../features/directives/model-select.spec.js  | 29 +++++++++++++++++++
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index 5930e2d7ba5..c6fac9dccaa 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -53,7 +53,14 @@ export default {
       const prevOptions = el._vOptions
       const curOptions = el._vOptions = [].map.call(el.options, getValue)
       if (curOptions.some((o, i) => !looseEqual(o, prevOptions[i]))) {
-        trigger(el, 'change')
+        // trigger change event if
+        // no matching option found for at least one value
+        const needReset = el.multiple
+          ? binding.value.some(v => hasNoMatchingOption(v, curOptions))
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions)
+        if (needReset) {
+          trigger(el, 'change')
+        }
       }
     }
   }
@@ -104,6 +111,10 @@ function actuallySetSelected (el, binding, vm) {
   }
 }
 
+function hasNoMatchingOption (value, options) {
+  return options.every(o => !looseEqual(o, value))
+}
+
 function getValue (option) {
   return '_value' in option
     ? option._value
diff --git a/test/unit/features/directives/model-select.spec.js b/test/unit/features/directives/model-select.spec.js
index 2f7e20eac2c..629e5a2f440 100644
--- a/test/unit/features/directives/model-select.spec.js
+++ b/test/unit/features/directives/model-select.spec.js
@@ -517,4 +517,33 @@ describe('Directive v-model select', () => {
       expect(vm.test).toBe('2')
     }).then(done)
   })
+
+  // #6193
+  it('should not trigger change event when matching option can be found for each value', done => {
+    const spy = jasmine.createSpy()
+    const vm = new Vue({
+      data: {
+        options: ['1']
+      },
+      computed: {
+        test: {
+          get () {
+            return '1'
+          },
+          set () {
+            spy()
+          }
+        }
+      },
+      template:
+        '<select v-model="test">' +
+          '<option :key="opt" v-for="opt in options" :value="opt">{{ opt }}</option>' +
+        '</select>'
+    }).$mount()
+
+    vm.options = ['1', '2']
+    waitForUpdate(() => {
+      expect(spy).not.toHaveBeenCalled()
+    }).then(done)
+  })
 })

From a43d66743be2bd62b2398090663e41eeaf0dc75f Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Wed, 30 Aug 2017 04:09:20 +0800
Subject: [PATCH 018/911] fix(transition): consider async placeholder as valid
 child to return (#6369)

fix #6256
---
 .../vdom/helpers/get-first-component-child.js |  3 +-
 src/core/vdom/helpers/index.js                |  1 +
 src/core/vdom/helpers/is-async-placeholder.js |  5 ++
 .../web/runtime/components/transition.js      | 10 +--
 .../component/component-keep-alive.spec.js    | 84 +++++++++++++++++++
 5 files changed, 97 insertions(+), 6 deletions(-)
 create mode 100644 src/core/vdom/helpers/is-async-placeholder.js

diff --git a/src/core/vdom/helpers/get-first-component-child.js b/src/core/vdom/helpers/get-first-component-child.js
index 70b2f199f94..f8649dd8728 100644
--- a/src/core/vdom/helpers/get-first-component-child.js
+++ b/src/core/vdom/helpers/get-first-component-child.js
@@ -1,12 +1,13 @@
 /* @flow */
 
 import { isDef } from 'shared/util'
+import { isAsyncPlaceholder } from './is-async-placeholder'
 
 export function getFirstComponentChild (children: ?Array<VNode>): ?VNode {
   if (Array.isArray(children)) {
     for (let i = 0; i < children.length; i++) {
       const c = children[i]
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
diff --git a/src/core/vdom/helpers/index.js b/src/core/vdom/helpers/index.js
index a1541e10544..320cf4c4343 100644
--- a/src/core/vdom/helpers/index.js
+++ b/src/core/vdom/helpers/index.js
@@ -6,3 +6,4 @@ export * from './update-listeners'
 export * from './normalize-children'
 export * from './resolve-async-component'
 export * from './get-first-component-child'
+export * from './is-async-placeholder'
diff --git a/src/core/vdom/helpers/is-async-placeholder.js b/src/core/vdom/helpers/is-async-placeholder.js
new file mode 100644
index 00000000000..6c4a6596b6a
--- /dev/null
+++ b/src/core/vdom/helpers/is-async-placeholder.js
@@ -0,0 +1,5 @@
+/* @flow */
+
+export function isAsyncPlaceholder (node: VNode): boolean {
+  return node.isComment && node.asyncFactory
+}
diff --git a/src/platforms/web/runtime/components/transition.js b/src/platforms/web/runtime/components/transition.js
index 9ac73b164ec..60b434cdced 100644
--- a/src/platforms/web/runtime/components/transition.js
+++ b/src/platforms/web/runtime/components/transition.js
@@ -5,7 +5,11 @@
 
 import { warn } from 'core/util/index'
 import { camelize, extend, isPrimitive } from 'shared/util'
-import { mergeVNodeHook, getFirstComponentChild } from 'core/vdom/helpers/index'
+import {
+  mergeVNodeHook,
+  isAsyncPlaceholder,
+  getFirstComponentChild
+} from 'core/vdom/helpers/index'
 
 export const transitionProps = {
   name: String,
@@ -72,10 +76,6 @@ function isSameChild (child: VNode, oldChild: VNode): boolean {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node: VNode): boolean {
-  return node.isComment && node.asyncFactory
-}
-
 export default {
   name: 'transition',
   props: transitionProps,
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index 1295c17f50e..dd3e3903b83 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -862,5 +862,89 @@ describe('Component keep-alive', () => {
         )
       }).then(done)
     })
+
+    it('async components with transition-mode out-in', done => {
+      const barResolve = jasmine.createSpy('bar resolved')
+      let next
+      const foo = (resolve) => {
+        setTimeout(() => {
+          resolve(one)
+          Vue.nextTick(next)
+        }, duration / 2)
+      }
+      const bar = (resolve) => {
+        setTimeout(() => {
+          resolve(two)
+          barResolve()
+        }, duration / 2)
+      }
+      components = {
+        foo,
+        bar
+      }
+      const vm = new Vue({
+        template: `<div>
+          <transition name="test" mode="out-in" @after-enter="afterEnter" @after-leave="afterLeave">
+            <keep-alive>
+              <component :is="view" class="test"></component>
+            </keep-alive>
+          </transition>
+        </div>`,
+        data: {
+          view: 'foo'
+        },
+        components,
+        methods: {
+          afterEnter () {
+            next()
+          },
+          afterLeave () {
+            next()
+          }
+        }
+      }).$mount(el)
+      expect(vm.$el.textContent).toBe('')
+      next = () => {
+        assertHookCalls(one, [1, 1, 1, 0, 0])
+        assertHookCalls(two, [0, 0, 0, 0, 0])
+        waitForUpdate(() => {
+          expect(vm.$el.innerHTML).toBe(
+            '<div class="test test-enter test-enter-active">one</div>'
+          )
+        }).thenWaitFor(nextFrame).then(() => {
+          expect(vm.$el.innerHTML).toBe(
+            '<div class="test test-enter-active test-enter-to">one</div>'
+          )
+        }).thenWaitFor(_next => { next = _next }).then(() => {
+          // foo afterEnter get called
+          expect(vm.$el.innerHTML).toBe('<div class="test">one</div>')
+          vm.view = 'bar'
+        }).thenWaitFor(nextFrame).then(() => {
+          assertHookCalls(one, [1, 1, 1, 1, 0])
+          assertHookCalls(two, [0, 0, 0, 0, 0])
+          expect(vm.$el.innerHTML).toBe(
+            '<div class="test test-leave-active test-leave-to">one</div><!---->'
+          )
+        }).thenWaitFor(_next => { next = _next }).then(() => {
+          // foo afterLeave get called
+          // and bar has already been resolved before afterLeave get called
+          expect(barResolve.calls.count()).toBe(1)
+          expect(vm.$el.innerHTML).toBe('<!---->')
+        }).thenWaitFor(nextFrame).then(() => {
+          expect(vm.$el.innerHTML).toBe(
+            '<div class="test test-enter test-enter-active">two</div>'
+          )
+          assertHookCalls(one, [1, 1, 1, 1, 0])
+          assertHookCalls(two, [1, 1, 1, 0, 0])
+        }).thenWaitFor(nextFrame).then(() => {
+          expect(vm.$el.innerHTML).toBe(
+            '<div class="test test-enter-active test-enter-to">two</div>'
+          )
+        }).thenWaitFor(_next => { next = _next }).then(() => {
+          // bar afterEnter get called
+          expect(vm.$el.innerHTML).toBe('<div class="test">two</div>')
+        }).then(done)
+      }
+    })
   }
 })

From 59dbd4a414394a3ce581f9fbd9554da9af9e4b1d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=B5=B5=E9=91=AB=E6=99=96?= <120797887@qq.com>
Date: Wed, 30 Aug 2017 04:59:39 +0800
Subject: [PATCH 019/911] fix: ensure $attrs and $listeners are always objects
 (#6441)

fix #6263
---
 flow/component.js                              |  4 ++--
 src/core/instance/lifecycle.js                 |  4 ++--
 src/core/instance/render.js                    |  9 +++++----
 test/unit/features/instance/properties.spec.js | 14 ++++++++++++++
 types/vue.d.ts                                 |  4 ++--
 5 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/flow/component.js b/flow/component.js
index 08fcfd4a6ba..381943edaf7 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -29,8 +29,8 @@ declare interface Component {
   $slots: { [key: string]: Array<VNode> };
   $scopedSlots: { [key: string]: () => VNodeChildren };
   $vnode: VNode; // the placeholder node for the component in parent's render tree
-  $attrs: ?{ [key: string] : string };
-  $listeners: ?{ [key: string]: Function | Array<Function> };
+  $attrs: { [key: string] : string };
+  $listeners: { [key: string]: Function | Array<Function> };
   $isServer: boolean;
 
   // public methods
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index fd2c9e5b7d4..2f923c0792d 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -232,8 +232,8 @@ export function updateChildComponent (
   // update $attrs and $listensers hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs
-  vm.$listeners = listeners
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject
+  vm.$listeners = listeners || emptyObject
 
   // update props
   if (propsData && vm.$options.props) {
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index cf2e8fe89a4..62b4878195b 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -49,17 +49,18 @@ export function initRender (vm: Component) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   const parentData = parentVnode && parentVnode.data
+
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs, () => {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
       !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm)
     }, true)
-    defineReactive(vm, '$listeners', vm.$options._parentListeners, () => {
+    defineReactive(vm, '$listeners', vm.$options._parentListeners || emptyObject, () => {
       !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm)
     }, true)
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs, null, true)
-    defineReactive(vm, '$listeners', vm.$options._parentListeners, null, true)
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true)
+    defineReactive(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true)
   }
 }
 
diff --git a/test/unit/features/instance/properties.spec.js b/test/unit/features/instance/properties.spec.js
index f14aa52a863..02aca12fcfa 100644
--- a/test/unit/features/instance/properties.spec.js
+++ b/test/unit/features/instance/properties.spec.js
@@ -146,6 +146,20 @@ describe('Instance properties', () => {
     }).then(done)
   })
 
+  // #6263
+  it('$attrs should not be undefined when no props passed in', () => {
+    const vm = new Vue({
+      template: `<foo/>`,
+      data: { foo: 'foo' },
+      components: {
+        foo: {
+          template: `<div>{{ this.foo }}</div>`
+        }
+      }
+    }).$mount()
+    expect(vm.$attrs).toBeDefined()
+  })
+
   it('warn mutating $attrs', () => {
     const vm = new Vue()
     vm.$attrs = {}
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 0bfce6ae45d..111f5fe99f4 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -45,8 +45,8 @@ export declare class Vue {
   readonly $ssrContext: any;
   readonly $props: any;
   readonly $vnode: VNode;
-  readonly $attrs: { [key: string] : string } | void;
-  readonly $listeners: { [key: string]: Function | Array<Function> } | void;
+  readonly $attrs: { [key: string] : string };
+  readonly $listeners: { [key: string]: Function | Array<Function> };
 
   $mount(elementOrSelector?: Element | String, hydrating?: boolean): this;
   $forceUpdate(): void;

From d4120a61680fa0bcbfb5689064dca68ff0cef105 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 29 Aug 2017 23:01:11 +0200
Subject: [PATCH 020/911] ignore .vscode

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 1ee765a0db6..370a6eddbc0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ packages/vue-server-renderer/build.js
 packages/vue-server-renderer/server-plugin.js
 packages/vue-server-renderer/client-plugin.js
 packages/vue-template-compiler/build.js
+.vscode

From f4ee63ca1059efcbdcacea9f6c1ce4e9433e2baf Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 29 Aug 2017 23:09:20 +0200
Subject: [PATCH 021/911] refactor: also use emptyObject for functional
 listeners

---
 src/core/vdom/create-functional-component.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 66161759331..f13589370b3 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -8,6 +8,7 @@ import { resolveSlots } from '../instance/render-helpers/resolve-slots'
 import {
   isDef,
   camelize,
+  emptyObject,
   validateProp
 } from '../util/index'
 
@@ -22,7 +23,7 @@ export function createFunctionalComponent (
   const propOptions = Ctor.options.props
   if (isDef(propOptions)) {
     for (const key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {})
+      props[key] = validateProp(key, propOptions, propsData || emptyObject)
     }
   } else {
     if (isDef(data.attrs)) mergeProps(props, data.attrs)
@@ -37,7 +38,7 @@ export function createFunctionalComponent (
     props,
     children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: () => resolveSlots(children, context)
   })

From 172dbf9faf4cb71dff72c77fdfe80fa1932d1ba3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 29 Aug 2017 23:32:28 +0200
Subject: [PATCH 022/911] fix(ssr): should also escape static text content fix
 #6345

---
 src/server/optimizing-compiler/codegen.js | 4 ++--
 test/ssr/ssr-string.spec.js               | 9 +++++++++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/server/optimizing-compiler/codegen.js b/src/server/optimizing-compiler/codegen.js
index 4e0c6511b1e..f494f8fad0a 100644
--- a/src/server/optimizing-compiler/codegen.js
+++ b/src/server/optimizing-compiler/codegen.js
@@ -22,8 +22,8 @@ import {
   applyModelTransform
 } from './modules'
 
+import { escape } from 'web/server/util'
 import { optimizability } from './optimizer'
-
 import type { CodegenResult } from 'compiler/codegen/index'
 
 export type StringSegment = {
@@ -222,7 +222,7 @@ function nodesToSegments (
     } else if (c.type === 2) {
       segments.push({ type: INTERPOLATION, value: c.expression })
     } else if (c.type === 3) {
-      segments.push({ type: RAW, value: c.text })
+      segments.push({ type: RAW, value: escape(c.text) })
     }
   }
   return segments
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 24c20f9227f..683b905fda1 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -908,6 +908,15 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('should escape static strings', done => {
+    renderVmWithOptions(({
+      template: `<div>&lt;foo&gt;</div>`
+    }), res => {
+      expect(res).toBe(`<div data-server-rendered="true">&lt;foo&gt;</div>`)
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 0529040c17b8632032a43d142aac88386f6b4a1f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Aug 2017 00:47:10 +0200
Subject: [PATCH 023/911] fix: deep clone slot vnodes on re-render

fix #6372
---
 src/core/instance/render.js                   |  8 +++-
 src/core/vdom/vnode.js                        |  9 ++--
 .../features/component/component-slot.spec.js | 43 +++++++++++++++++++
 3 files changed, 55 insertions(+), 5 deletions(-)

diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 62b4878195b..15bc9a30192 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -78,9 +78,13 @@ export function renderMixin (Vue: Class<Component>) {
     } = vm.$options
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (const key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key])
+        const slot = vm.$slots[key]
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */)
+        }
       }
     }
 
diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 7e82ec27624..751e1414bf5 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -79,7 +79,7 @@ export function createTextVNode (val: string | number) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-export function cloneVNode (vnode: VNode): VNode {
+export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
   const cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -95,14 +95,17 @@ export function cloneVNode (vnode: VNode): VNode {
   cloned.key = vnode.key
   cloned.isComment = vnode.isComment
   cloned.isCloned = true
+  if (deep) {
+    cloned.children = vnode.children && cloneVNodes(vnode.children)
+  }
   return cloned
 }
 
-export function cloneVNodes (vnodes: Array<VNode>): Array<VNode> {
+export function cloneVNodes (vnodes: Array<VNode>, deep?: boolean): Array<VNode> {
   const len = vnodes.length
   const res = new Array(len)
   for (let i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i])
+    res[i] = cloneVNode(vnodes[i], deep)
   }
   return res
 }
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 6eb3927ef04..894dc9f7ed0 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -685,4 +685,47 @@ describe('Component slot', () => {
     }).$mount()
     expect(vm.$el.innerHTML).toBe('<div>default<span>foo</span></div>')
   })
+
+  it('should handle nested components in slots properly', done => {
+    const TestComponent = {
+      template: `
+        <component :is="toggleEl ? 'b' : 'i'">
+          <slot />
+        </component>
+      `,
+      data () {
+        return {
+          toggleEl: true
+        }
+      }
+    }
+
+    const vm = new Vue({
+      template: `
+        <div>
+          <test-component ref="test">
+            <div>
+              <foo/>
+            </div><bar/>
+          </test-component>
+        </div>
+      `,    
+      components: {
+        TestComponent,
+        foo: {
+          template: `<div>foo</div>`
+        },
+        bar: {
+          template: `<div>bar</div>`
+        }
+      }
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe(`<b><div><div>foo</div></div><div>bar</div></b>`)
+
+    vm.$refs.test.toggleEl = false
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe(`<i><div><div>foo</div></div><div>bar</div></i>`)
+    }).then(done)
+  })
 })

From 986a669e8f0b0b2ad0206d1066cc429cad965226 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Aug 2017 16:42:30 +0200
Subject: [PATCH 024/911] chore: trim trailing whitespace

---
 test/unit/features/component/component-slot.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 894dc9f7ed0..95a771e286c 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -709,7 +709,7 @@ describe('Component slot', () => {
             </div><bar/>
           </test-component>
         </div>
-      `,    
+      `,
       components: {
         TestComponent,
         foo: {

From 321866a47d9a64835c27b1c45cefd0cd98e07a97 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Aug 2017 16:43:16 +0200
Subject: [PATCH 025/911] test: use headless chrome for dev

---
 test/unit/karma.dev.config.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/karma.dev.config.js b/test/unit/karma.dev.config.js
index afce058fcfe..b69872facc7 100644
--- a/test/unit/karma.dev.config.js
+++ b/test/unit/karma.dev.config.js
@@ -2,7 +2,7 @@ var base = require('./karma.base.config.js')
 
 module.exports = function (config) {
   config.set(Object.assign(base, {
-    browsers: ['Chrome'],
+    browsers: ['ChromeHeadless'],
     reporters: ['progress'],
     plugins: base.plugins.concat([
       'karma-chrome-launcher'

From 53463619e5d19d35dfad1a4245a8dc583681feb3 Mon Sep 17 00:00:00 2001
From: ZhangJan <dsonet@msn.com>
Date: Wed, 30 Aug 2017 17:30:09 +0800
Subject: [PATCH 026/911] perf: deep clone slot vnodes on re-render (#6478)

avoid unnecessary assignment.
---
 src/core/vdom/vnode.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 751e1414bf5..b58664cdc77 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -95,8 +95,8 @@ export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
   cloned.key = vnode.key
   cloned.isComment = vnode.isComment
   cloned.isCloned = true
-  if (deep) {
-    cloned.children = vnode.children && cloneVNodes(vnode.children)
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children)
   }
   return cloned
 }

From db1d0474997e9e60b8b0d39a3b7c2af55cfd0d4a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Sep 2017 12:19:58 -0400
Subject: [PATCH 027/911] chore: remove unnecessary log in tests

---
 test/ssr/ssr-string.spec.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 683b905fda1..d9c330004e1 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -828,7 +828,6 @@ describe('SSR: renderToString', () => {
       },
       template: `<div v-bind="{ test }"></div>`
     }, res => {
-      console.log(res)
       expect(res).not.toContain(`<script>alert(1)</script>`)
       done()
     })

From c371fbde9c1251bc225dddd682b32621a31f2548 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Sep 2017 12:27:53 -0400
Subject: [PATCH 028/911] build: use npm lockfile

---
 package-lock.json | 9348 +++++++++++++++++++++++++++++++++++++++++++++
 yarn.lock         | 5639 ---------------------------
 2 files changed, 9348 insertions(+), 5639 deletions(-)
 create mode 100644 package-lock.json
 delete mode 100644 yarn.lock

diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 00000000000..fb11b81a29b
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,9348 @@
+{
+  "name": "vue",
+  "version": "2.4.2",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "abbrev": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
+      "integrity": "sha1-kbR5JYinc4wl813W9jdSovh3YTU=",
+      "dev": true
+    },
+    "accepts": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.3.tgz",
+      "integrity": "sha1-w8p0NJOGSMPg2cHjKN1otiLChMo=",
+      "dev": true,
+      "requires": {
+        "mime-types": "2.1.16",
+        "negotiator": "0.6.1"
+      }
+    },
+    "acorn": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+      "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+      "dev": true
+    },
+    "acorn-dynamic-import": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz",
+      "integrity": "sha1-x1K9IQvvZ5UBtsbLf8hPj0cVjMQ=",
+      "dev": true,
+      "requires": {
+        "acorn": "4.0.13"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "4.0.13",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-4.0.13.tgz",
+          "integrity": "sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=",
+          "dev": true
+        }
+      }
+    },
+    "acorn-jsx": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
+      "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
+      "dev": true,
+      "requires": {
+        "acorn": "3.3.0"
+      }
+    },
+    "acorn-object-spread": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/acorn-object-spread/-/acorn-object-spread-1.0.0.tgz",
+      "integrity": "sha1-SOrQ9KjrFplaF6Dbn/xqyq2kumg=",
+      "dev": true,
+      "requires": {
+        "acorn": "3.3.0"
+      }
+    },
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+      "version": "0.4.7",
+      "resolved": "https://registry.npmjs.org/adm-zip/-/adm-zip-0.4.7.tgz",
+      "integrity": "sha1-hgbCy/HEJs6MjsABdER/1Jtur8E=",
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+      "resolved": "https://registry.npmjs.org/after/-/after-0.8.2.tgz",
+      "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8=",
+      "dev": true
+    },
+    "agent-base": {
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+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-2.1.1.tgz",
+      "integrity": "sha1-1t4Q1a9hMtW9aSQn1G/FOFOQlMc=",
+      "dev": true,
+      "requires": {
+        "extend": "3.0.1",
+        "semver": "5.0.3"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "5.0.3",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.0.3.tgz",
+          "integrity": "sha1-d0Zt5YnNXTyV8TiqeLxWmjy10no=",
+          "dev": true
+        }
+      }
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+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
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+        "kind-of": "3.2.2",
+        "longest": "1.0.1",
+        "repeat-string": "1.6.1"
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+      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+      "dev": true
+    },
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+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
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+      "dev": true
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+          "dev": true,
+          "optional": true
+        }
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+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-4.2.1.tgz",
+      "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
+      "dev": true,
+      "requires": {
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+          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
+          "dev": true
+        }
+      }
+    },
+    "yauzl": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
+      "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
+      "dev": true,
+      "requires": {
+        "fd-slicer": "1.0.1"
+      }
+    },
+    "yeast": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
+      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
+      "dev": true
+    },
+    "zip-stream": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-1.2.0.tgz",
+      "integrity": "sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=",
+      "dev": true,
+      "requires": {
+        "archiver-utils": "1.3.0",
+        "compress-commons": "1.2.0",
+        "lodash": "4.17.4",
+        "readable-stream": "2.3.3"
+      }
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+}
diff --git a/yarn.lock b/yarn.lock
deleted file mode 100644
index 5f4519ed80d..00000000000
--- a/yarn.lock
+++ /dev/null
@@ -1,5639 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
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-  resolved "https://registry.yarnpkg.com/base64id/-/base64id-1.0.0.tgz#47688cb99bb6804f0e06d3e763b1c32e57d8e6b6"
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-  resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz#63bc5dcb61331b92bc05fd528953c33462a06f8d"
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-  resolved "https://registry.yarnpkg.com/better-assert/-/better-assert-1.0.2.tgz#40866b9e1b9e0b55b481894311e68faffaebc522"
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-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
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-  version "2.9.6"
-  resolved "https://registry.yarnpkg.com/commitizen/-/commitizen-2.9.6.tgz#c0d00535ef264da7f63737edfda4228983fa2291"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
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-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/compare-func/-/compare-func-1.3.2.tgz#99dd0ba457e1f9bc722b12c08ec33eeab31fa648"
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-    dot-prop "^3.0.0"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
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-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.1.2.tgz#296594f2753daa63996d2af08d15a95116c9aec3"
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-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
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-  resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
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-  resolved "https://registry.yarnpkg.com/compress-commons/-/compress-commons-1.2.0.tgz#58587092ef20d37cb58baf000112c9278ff73b9f"
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-  resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
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-  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.5.0.tgz#53f7d43c51c5e43f81c8fdd03321c631be68d611"
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-  version "0.1.0"
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-  version "1.9.0"
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-  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.6.0.tgz#0e6da8f0ce52838ef5cec5c8f9396b0c1b64a3cb"
-
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-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-0.1.3.tgz#ef558acab8de25206cd713906d74e56930eb69f2"
-  dependencies:
-    type-detect "0.1.1"
-
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-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-0.1.2.tgz#b246c2b80a570a47c11be1d9bd1070ec878b87ce"
-
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-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
-
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-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
-
-defined@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/defined/-/defined-0.0.0.tgz#f35eea7d705e933baf13b2f03b3f83d921403b3e"
-
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-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/degenerator/-/degenerator-1.0.4.tgz#fcf490a37ece266464d9cc431ab98c5819ced095"
-  dependencies:
-    ast-types "0.x.x"
-    escodegen "1.x.x"
-    esprima "3.x.x"
-
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-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
-  dependencies:
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-    is-path-cwd "^1.0.0"
-    is-path-in-cwd "^1.0.0"
-    object-assign "^4.0.1"
-    pify "^2.0.0"
-    pinkie-promise "^2.0.0"
-    rimraf "^2.2.8"
-
-delayed-stream@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-0.0.5.tgz#d4b1f43a93e8296dfe02694f4680bc37a313c73f"
-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
-
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.0.tgz#e1bd82c6aab6ced965b97b88b17ed3e528ca18c3"
-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/des.js/-/des.js-1.0.0.tgz#c074d2e2aa6a8a9a07dbd61f9a15c2cd83ec8ecc"
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-    minimalistic-assert "^1.0.0"
-
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-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/detect-file/-/detect-file-0.1.0.tgz#4935dedfd9488648e006b0129566e9386711ea63"
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-    fs-exists-sync "^0.1.0"
-
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-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
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-    repeating "^2.0.0"
-
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-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/di/-/di-0.0.1.tgz#806649326ceaa7caa3306d75d985ea2748ba913c"
-
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-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-1.4.0.tgz#7f28d2eb9ee7b15a97efd89ce63dcfdaa3ccbabf"
-
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-  version "5.0.2"
-  resolved "https://registry.yarnpkg.com/diffie-hellman/-/diffie-hellman-5.0.2.tgz#b5835739270cfe26acf632099fded2a07f209e5e"
-  dependencies:
-    bn.js "^4.1.0"
-    miller-rabin "^4.0.0"
-    randombytes "^2.0.0"
-
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.0.0.tgz#c73d8d2909d22291e1a007a395804da8b665fe63"
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-    isarray "^1.0.0"
-
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-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/dom-serialize/-/dom-serialize-2.2.1.tgz#562ae8999f44be5ea3076f5419dcd59eb43ac95b"
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-    custom-event "~1.0.0"
-    ent "~2.2.0"
-    extend "^3.0.0"
-    void-elements "^2.0.0"
-
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-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
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-    domelementtype "~1.1.1"
-    entities "~1.1.1"
-
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-  version "1.1.7"
-  resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.1.7.tgz#867aa4b093faa05f1de08c06f4d7b21fdf8698bc"
-
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-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
-
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-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
-
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-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.1.tgz#892e47000a99be55bbf3774ffea0561d8879c259"
-  dependencies:
-    domelementtype "1"
-
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-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.6.2.tgz#1958cc0b4c9426e9ed367fb1c8e854891b0fa3ff"
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-    dom-serializer "0"
-    domelementtype "1"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-3.0.0.tgz#1b708af094a49c9a0e7dbcad790aba539dac1177"
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-    is-obj "^1.0.0"
-
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-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
-
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-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
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-    jsbn "~0.1.0"
-
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-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-2.2.1.tgz#b5087fad439dd9dd49d31e18131454817fe87769"
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-    mime "^1.2.11"
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-
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
-
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-  version "0.8.3"
-  resolved "https://registry.yarnpkg.com/ejs/-/ejs-0.8.3.tgz#db8aac47ff80a7df82b4c82c126fe8970870626f"
-
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-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
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-    brorand "^1.0.1"
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-    hmac-drbg "^1.0.0"
-    inherits "^2.0.1"
-    minimalistic-assert "^1.0.0"
-    minimalistic-crypto-utils "^1.0.0"
-
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.1.tgz#79e3d58655346909fe6f0f45a5de68103b294d20"
-
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-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.0.tgz#7a90d833efda6cfa6eac0f4949dbb0fad3a63206"
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-
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-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-1.8.3.tgz#1798ed93451246453d4c6f635d7a201fe940d5ab"
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-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-1.3.2.tgz#937b079f0007d0893ec56d46cb220b8cb435220a"
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-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-1.8.3.tgz#8de7f97895d20d39b85f88eeee777b2bd42b13d4"
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-
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-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.1.0.tgz#9f4b626f577245edcf4b2ad83d86e17f4f421dec"
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-
-ent@~2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/ent/-/ent-2.2.0.tgz#e964219325a21d05f44466a2f686ed6ce5f5dd1d"
-
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-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.1.tgz#6e5c2d0a5621b5dadaecef80b90edfb5cd7772f0"
-
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-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.4.tgz#b896e23a9e5e8ba33871fc996abd3635fc9a1c7d"
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-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
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-  version "0.10.23"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.23.tgz#7578b51be974207a5487821b56538c224e4e7b38"
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-es6-iterator@2, es6-iterator@^2.0.1, es6-iterator@~2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.1.tgz#8e319c9f0453bf575d374940a655920e59ca5512"
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-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
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-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.1.0.tgz#dda03ca8f9f89bc597e689842929de7ba8cebdf0"
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-  version "4.0.5"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.0.5.tgz#7882f30adde5b240ccfa7f7d78c548330951ae42"
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-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
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-es6-symbol@3.1.1, es6-symbol@^3.1, es6-symbol@^3.1.1, es6-symbol@~3.1, es6-symbol@~3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
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-  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
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-escape-html@~1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
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-  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
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-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
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-eslint-loader@^1.7.1:
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-eslint-plugin-flowtype@^2.34.0:
-  version "2.34.0"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.34.0.tgz#b9875f314652e5081623c9d2b18a346bbb759c09"
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-eslint-plugin-html@^2.0.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-html/-/eslint-plugin-html-2.0.3.tgz#7c89883ab0c85fa5d28b666a14a4e906aa90b897"
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-  version "2.2.0"
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-  resolved "https://registry.yarnpkg.com/eslint-plugin-vue-libs/-/eslint-plugin-vue-libs-1.2.0.tgz#eff85ecd66e8f1c9538d668205fa8d65136f1eac"
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-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-3.19.0.tgz#c8fc6201c7f40dd08941b87c085767386a679acc"
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-espree@^3.4.0:
-  version "3.4.3"
-  resolved "https://registry.yarnpkg.com/espree/-/espree-3.4.3.tgz#2910b5ccd49ce893c2ffffaab4fd8b3a31b82374"
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-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
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-esprima@3.x.x, esprima@^3.1.1:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
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-esquery@^1.0.0:
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-  resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
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-  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-0.2.17.tgz#f86e6374d43205a6e6c60e9196f17c0299bfb348"
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-    json5 "^0.5.0"
-    object-assign "^4.0.1"
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-  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
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-    emojis-list "^2.0.0"
-    json5 "^0.5.0"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
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-    path-exists "^3.0.0"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/lodash._arraycopy/-/lodash._arraycopy-3.0.0.tgz#76e7b7c1f1fb92547374878a562ed06a3e50f6e1"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/lodash._arrayeach/-/lodash._arrayeach-3.0.0.tgz#bab156b2a90d3f1bbd5c653403349e5e5933ef9e"
-
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-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
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-    lodash._basecopy "^3.0.0"
-    lodash.keys "^3.0.0"
-
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-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/lodash._baseclone/-/lodash._baseclone-3.3.0.tgz#303519bf6393fe7e42f34d8b630ef7794e3542b7"
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-    lodash._arrayeach "^3.0.0"
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-    lodash._basefor "^3.0.0"
-    lodash.isarray "^3.0.0"
-    lodash.keys "^3.0.0"
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-  version "4.5.7"
-  resolved "https://registry.yarnpkg.com/lodash._baseclone/-/lodash._baseclone-4.5.7.tgz#ce42ade08384ef5d62fa77c30f61a46e686f8434"
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-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/lodash._basecopy/-/lodash._basecopy-3.0.1.tgz#8da0e6a876cf344c0ad8a54882111dd3c5c7ca36"
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-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/lodash._basecreate/-/lodash._basecreate-3.0.3.tgz#1bc661614daa7fc311b7d03bf16806a0213cf821"
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-  resolved "https://registry.yarnpkg.com/lodash._basefor/-/lodash._basefor-3.0.3.tgz#7550b4e9218ef09fad24343b612021c79b4c20c2"
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-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/lodash._bindcallback/-/lodash._bindcallback-3.0.1.tgz#e531c27644cf8b57a99e17ed95b35c748789392e"
-
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-  version "3.9.1"
-  resolved "https://registry.yarnpkg.com/lodash._getnative/-/lodash._getnative-3.9.1.tgz#570bc7dede46d61cdcde687d65d3eecbaa3aaff5"
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-  version "3.0.9"
-  resolved "https://registry.yarnpkg.com/lodash._isiterateecall/-/lodash._isiterateecall-3.0.9.tgz#5203ad7ba425fae842460e696db9cf3e6aac057c"
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
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-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/lodash._stack/-/lodash._stack-4.1.3.tgz#751aa76c1b964b047e76d14fc72a093fcb5e2dd0"
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-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/lodash.clone/-/lodash.clone-3.0.3.tgz#84688c73d32b5a90ca25616963f189252a997043"
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-    lodash._bindcallback "^3.0.0"
-    lodash._isiterateecall "^3.0.0"
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-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/lodash.create/-/lodash.create-3.1.1.tgz#d7f2849f0dbda7e04682bb8cd72ab022461debe7"
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-    lodash._basecreate "^3.0.0"
-    lodash._isiterateecall "^3.0.0"
-
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-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/lodash.defaultsdeep/-/lodash.defaultsdeep-4.3.2.tgz#6c1a586e6c5647b0e64e2d798141b8836158be8a"
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-    lodash._stack "^4.0.0"
-    lodash.isplainobject "^4.0.0"
-    lodash.keysin "^4.0.0"
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-    lodash.rest "^4.0.0"
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-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
-
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-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/lodash.isarray/-/lodash.isarray-3.0.4.tgz#79e4eb88c36a8122af86f844aa9bcd851b5fbb55"
-
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-  version "4.0.6"
-  resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
-
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-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-3.1.2.tgz#4dbc0472b156be50a0b286855d1bd0b0c656098a"
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-    lodash.isarguments "^3.0.0"
-    lodash.isarray "^3.0.0"
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-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/lodash.keysin/-/lodash.keysin-4.2.0.tgz#8cc3fb35c2d94acc443a1863e02fa40799ea6f28"
-
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-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/lodash.map/-/lodash.map-4.6.0.tgz#771ec7839e3473d9c4cde28b19394c3562f4f6d3"
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-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/lodash.mergewith/-/lodash.mergewith-4.6.0.tgz#150cf0a16791f5903b8891eab154609274bdea55"
-
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-  version "4.0.5"
-  resolved "https://registry.yarnpkg.com/lodash.rest/-/lodash.rest-4.0.5.tgz#954ef75049262038c96d1fc98b28fdaf9f0772aa"
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-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.4.0.tgz#e73a0385c8355591746e020b99679c690e68fba0"
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-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/lodash.templatesettings/-/lodash.templatesettings-4.1.0.tgz#2b4d4e95ba440d915ff08bc899e4553666713316"
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-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
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-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
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-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
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-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
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-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
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-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.1.tgz#622e32e82488b49279114a4f9ecf45e7cd6bba55"
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-  version "2.6.5"
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-  version "0.14.0"
-  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.14.0.tgz#57224aef1701caeed273b17a39a956e72b172462"
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-  version "0.15.2"
-  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.15.2.tgz#0681d7388741bbc3addaa65060992624c6c09e9c"
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-  version "0.16.0"
-  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.16.0.tgz#970ebb0da7193301285fb1aa650f39bdd81eb45a"
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-  version "0.19.1"
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-  version "0.4.1"
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-  version "3.7.0"
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-  version "1.2.0"
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-  version "4.0.0"
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-mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
-  version "0.5.1"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/mkpath/-/mkpath-1.0.0.tgz#ebb3a977e7af1c683ae6fda12b545a6ba6c5853d"
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-  version "1.0.0"
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-  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.5.tgz#8fbfabb0a98a253d3184331f9e8deb7372fac6c0"
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-  version "0.0.6"
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-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.6.2.tgz#e4ff34e6c95fdfb5aecc08de6596f43605a7db45"
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-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
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-  resolved "https://registry.yarnpkg.com/netmask/-/netmask-1.0.6.tgz#20297e89d86f6f6400f250d9f4f6b4c1945fcd35"
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-  resolved "https://registry.yarnpkg.com/nightwatch-helpers/-/nightwatch-helpers-1.2.0.tgz#cdefeb7635074a141825a7b6d1b955b6d7810a0f"
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-  version "0.9.16"
-  resolved "https://registry.yarnpkg.com/nightwatch/-/nightwatch-0.9.16.tgz#c4ac3ec711b0ff047c3dca9c6557365ee236519f"
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-  resolved "https://registry.yarnpkg.com/node-libs-browser/-/node-libs-browser-2.0.0.tgz#a3a59ec97024985b46e958379646f96c4b616646"
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-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.0.tgz#dc59bee85f64f00ed424efb2af0783df25d1c0b5"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/null-check/-/null-check-1.0.0.tgz#977dffd7176012b9ec30d2a39db5cf72a0439edd"
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-  version "1.0.1"
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-  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.4.0.tgz#f22956f31ea7151a821e5f2fb32c113cad8b9f69"
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-  version "4.1.1"
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-  resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
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-  resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.1.8.tgz#28a659cf987d96a4dabe7860289f3b5326c4a03c"
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
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-  version "2.3.0"
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-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
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-  version "1.4.3"
-  resolved "https://registry.yarnpkg.com/opener/-/opener-1.4.3.tgz#5c6da2c5d7e5831e8ffa3964950f8d6674ac90b8"
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-  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
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-  version "0.8.2"
-  resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
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-
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-  version "0.2.1"
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-  resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
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-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
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-  version "1.0.2"
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-  version "1.1.0"
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-  version "2.0.0"
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-  version "1.0.0"
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-pend@~1.2.0:
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-  resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
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-preserve@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
-
-private@^0.1.6:
-  version "0.1.7"
-  resolved "https://registry.yarnpkg.com/private/-/private-0.1.7.tgz#68ce5e8a1ef0a23bb570cc28537b5332aba63ef1"
-
-process-nextick-args@~1.0.6:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
-
-process@^0.11.0:
-  version "0.11.10"
-  resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
-
-progress@^1.1.8, progress@~1.1.8:
-  version "1.1.8"
-  resolved "https://registry.yarnpkg.com/progress/-/progress-1.1.8.tgz#e260c78f6161cdd9b0e56cc3e0a85de17c7a57be"
-
-proxy-agent@2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/proxy-agent/-/proxy-agent-2.0.0.tgz#57eb5347aa805d74ec681cb25649dba39c933499"
-  dependencies:
-    agent-base "2"
-    debug "2"
-    extend "3"
-    http-proxy-agent "1"
-    https-proxy-agent "1"
-    lru-cache "~2.6.5"
-    pac-proxy-agent "1"
-    socks-proxy-agent "2"
-
-prr@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/prr/-/prr-0.0.0.tgz#1a84b85908325501411853d0081ee3fa86e2926a"
-
-pseudomap@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
-
-public-encrypt@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/public-encrypt/-/public-encrypt-4.0.0.tgz#39f699f3a46560dd5ebacbca693caf7c65c18cc6"
-  dependencies:
-    bn.js "^4.1.0"
-    browserify-rsa "^4.0.0"
-    create-hash "^1.1.0"
-    parse-asn1 "^5.0.0"
-    randombytes "^2.0.1"
-
-punycode@1.3.2:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
-
-punycode@^1.2.4, punycode@^1.4.1:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
-
-q@1.4.1:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
-
-q@^1.4.1:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/q/-/q-1.5.0.tgz#dd01bac9d06d30e6f219aecb8253ee9ebdc308f1"
-
-qjobs@^1.1.4:
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/qjobs/-/qjobs-1.1.5.tgz#659de9f2cf8dcc27a1481276f205377272382e73"
-
-qs@6.4.0, qs@~6.4.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
-
-qs@~1.2.0:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-1.2.2.tgz#19b57ff24dc2a99ce1f8bdf6afcda59f8ef61f88"
-
-qs@~2.3.3:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
-
-qs@~6.3.0:
-  version "6.3.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
-
-querystring-es3@^0.2.0:
-  version "0.2.1"
-  resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
-
-querystring@0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
-
-randomatic@^1.1.3:
-  version "1.1.7"
-  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-1.1.7.tgz#c7abe9cc8b87c0baa876b19fde83fd464797e38c"
-  dependencies:
-    is-number "^3.0.0"
-    kind-of "^4.0.0"
-
-randombytes@^2.0.0, randombytes@^2.0.1:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.0.5.tgz#dc009a246b8d09a177b4b7a0ae77bc570f4b1b79"
-  dependencies:
-    safe-buffer "^5.1.0"
-
-range-parser@^1.0.3, range-parser@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
-
-raw-body@2, raw-body@~2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.2.0.tgz#994976cf6a5096a41162840492f0bdc5d6e7fb96"
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-    bytes "2.4.0"
-    iconv-lite "0.4.15"
-    unpipe "1.0.0"
-
-rc@^1.1.7:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.1.tgz#2e03e8e42ee450b8cb3dce65be1bf8974e1dfd95"
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-    deep-extend "~0.4.0"
-    ini "~1.3.0"
-    minimist "^1.2.0"
-    strip-json-comments "~2.0.1"
-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
-  dependencies:
-    find-up "^1.0.0"
-    read-pkg "^1.0.0"
-
-read-pkg@^1.0.0, read-pkg@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
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-    load-json-file "^1.0.0"
-    normalize-package-data "^2.3.2"
-    path-type "^1.0.0"
-
-readable-stream@1.1.x:
-  version "1.1.14"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
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-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
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-readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.6:
-  version "2.2.11"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.2.11.tgz#0796b31f8d7688007ff0b93a8088d34aa17c0f72"
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    safe-buffer "~5.0.1"
-    string_decoder "~1.0.0"
-    util-deprecate "~1.0.1"
-
-readable-stream@~1.0.2, readable-stream@~1.0.26:
-  version "1.0.34"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
-readable-stream@~2.0.0:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
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-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    string_decoder "~0.10.x"
-    util-deprecate "~1.0.1"
-
-readdirp@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
-  dependencies:
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-    minimatch "^3.0.2"
-    readable-stream "^2.0.2"
-    set-immediate-shim "^1.0.1"
-
-readline2@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/readline2/-/readline2-1.0.1.tgz#41059608ffc154757b715d9989d199ffbf372e35"
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-    is-fullwidth-code-point "^1.0.0"
-    mute-stream "0.0.5"
-
-rechoir@^0.6.2:
-  version "0.6.2"
-  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
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-    resolve "^1.1.6"
-
-redent@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
-  dependencies:
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-    strip-indent "^1.0.1"
-
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-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.2.tgz#d1941c67bad437e1be76433add5b385f95b19260"
-
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-  version "0.10.5"
-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
-
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-  version "0.9.11"
-  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.9.11.tgz#3a7d067520cb7b7176769eb5ff868691befe1283"
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-    private "^0.1.6"
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-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.3.tgz#9b1a6c35d4d0dfcef5711ae651e8e9d3d7114145"
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-    is-primitive "^2.0.0"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-2.0.0.tgz#49d038837b8dcf8bfa5b9a42139938e6ea2ae240"
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-    regjsparser "^0.1.4"
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-regjsgen@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.2.0.tgz#6c016adeac554f75823fe37ac05b92d5a4edb1f7"
-
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-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.1.5.tgz#7ee8f84dc6fa792d3fd0ae228d24bd949ead205c"
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-    jsesc "~0.5.0"
-
-remove-trailing-separator@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.0.2.tgz#69b062d978727ad14dc6b56ba4ab772fd8d70511"
-
-repeat-element@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
-
-repeat-string@^0.2.2:
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-0.2.2.tgz#c7a8d3236068362059a7e4651fc6884e8b1fb4ae"
-
-repeat-string@^1.5.2:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/repeating/-/repeating-2.0.1.tgz#5214c53a926d3552707527fbab415dbc08d06dda"
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-
-request-progress@~2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/request-progress/-/request-progress-2.0.1.tgz#5d36bb57961c673aa5b788dbc8141fdf23b44e08"
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-  version "2.42.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.42.0.tgz#572bd0148938564040ac7ab148b96423a063304a"
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-request@2.79.0, request@~2.79.0:
-  version "2.79.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
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-    uuid "^3.0.0"
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-request@^2.81.0:
-  version "2.81.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
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-    aws4 "^1.2.1"
-    caseless "~0.12.0"
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-    forever-agent "~0.6.1"
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-    hawk "~3.1.3"
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-    mime-types "~2.1.7"
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-require-directory@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
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-require-main-filename@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
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-  resolved "https://registry.yarnpkg.com/require-relative/-/require-relative-0.8.7.tgz#7999539fc9e047a37928fa196f8e1563dabd36de"
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
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-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/resolve-dir/-/resolve-dir-0.1.1.tgz#b219259a5602fac5c5c496ad894a6e8cc430261e"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
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-resolve@1.1.7, resolve@1.1.x:
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-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
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-  version "1.3.3"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
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-resumer@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/resumer/-/resumer-0.0.0.tgz#f1e8f461e4064ba39e82af3cdc2a8c893d076759"
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-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
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-right-pad@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
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-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.1.tgz#c2338ec643df7a1b7fe5c54fa86f57428a55f33d"
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-  version "2.4.3"
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-  version "2.0.1"
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-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-alias/-/rollup-plugin-alias-1.3.1.tgz#a9152fec4b6a6510dae93989517ca7853c32a6fa"
-  dependencies:
-    slash "^1.0.0"
-
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-  version "2.7.1"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-2.7.1.tgz#16528197b0f938a1536f44683c7a93d573182f57"
-  dependencies:
-    babel-core "6"
-    babel-plugin-transform-es2015-classes "^6.9.0"
-    object-assign "^4.1.0"
-    rollup-pluginutils "^1.5.0"
-
-rollup-plugin-buble@^0.15.0:
-  version "0.15.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.15.0.tgz#83c3e89c7fd2266c7918f41ba3980313519c7fd0"
-  dependencies:
-    buble "^0.15.0"
-    rollup-pluginutils "^1.5.0"
-
-rollup-plugin-commonjs@^8.0.2:
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.0.2.tgz#98b1589bfe32a6c0f67790b60c0b499972afed89"
-  dependencies:
-    acorn "^4.0.1"
-    estree-walker "^0.3.0"
-    magic-string "^0.19.0"
-    resolve "^1.1.7"
-    rollup-pluginutils "^2.0.1"
-
-rollup-plugin-flow-no-whitespace@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-flow-no-whitespace/-/rollup-plugin-flow-no-whitespace-1.0.0.tgz#bd4ba1bcd99ad5b88234d72e6e2dacea9aa02d16"
-  dependencies:
-    flow-remove-types-no-whitespace "^1.0.3"
-    rollup-pluginutils "^1.5.2"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.0.0.tgz#8b897c4c3030d5001277b0514b25d2ca09683ee0"
-  dependencies:
-    browser-resolve "^1.11.0"
-    builtin-modules "^1.1.0"
-    is-module "^1.0.0"
-    resolve "^1.1.6"
-
-rollup-plugin-replace@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-replace/-/rollup-plugin-replace-1.1.1.tgz#396315ded050a6ce43b9518a886a3f60efb1ea33"
-  dependencies:
-    magic-string "^0.15.2"
-    minimatch "^3.0.2"
-    rollup-pluginutils "^1.5.0"
-
-rollup-pluginutils@^1.5.0, rollup-pluginutils@^1.5.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz#1e156e778f94b7255bfa1b3d0178be8f5c552408"
-  dependencies:
-    estree-walker "^0.2.1"
-    minimatch "^3.0.2"
-
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.0.1.tgz#7ec95b3573f6543a46a6461bd9a7c544525d0fc0"
-  dependencies:
-    estree-walker "^0.3.0"
-    micromatch "^2.3.11"
-
-rollup-watch@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/rollup-watch/-/rollup-watch-4.0.0.tgz#309051b9403b9e5445c5746c9eba9a466951d39e"
-  dependencies:
-    chokidar "^1.7.0"
-    require-relative "0.8.7"
-
-rollup@^0.45.1:
-  version "0.45.1"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.45.1.tgz#af67ded79974079095b5fede8817b4ec26d610e1"
-  dependencies:
-    source-map-support "^0.4.0"
-
-run-async@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/run-async/-/run-async-0.1.0.tgz#c8ad4a5e110661e402a7d21b530e009f25f8e389"
-  dependencies:
-    once "^1.3.0"
-
-run-async@^2.2.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
-  dependencies:
-    is-promise "^2.1.0"
-
-rx-lite@^3.1.2:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-3.1.2.tgz#19ce502ca572665f3b647b10939f97fd1615f102"
-
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-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
-
-safe-buffer@^5.0.1, safe-buffer@^5.1.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.0.tgz#fe4c8460397f9eaaaa58e73be46273408a45e223"
-
-safe-buffer@~5.0.1:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.0.1.tgz#d263ca54696cd8a306b5ca6551e92de57918fbe7"
-
-sauce-connect-launcher@^0.17.0:
-  version "0.17.0"
-  resolved "https://registry.yarnpkg.com/sauce-connect-launcher/-/sauce-connect-launcher-0.17.0.tgz#908d9311ecaf17dd9b4647a1435fd4a2072e80ce"
-  dependencies:
-    adm-zip "~0.4.3"
-    async "1.4.0"
-    https-proxy-agent "~1.0.0"
-    lodash "3.10.1"
-    rimraf "2.4.3"
-
-saucelabs@^1.3.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.4.0.tgz#b934a9af9da2874b3f40aae1fcde50a4466f5f38"
-  dependencies:
-    https-proxy-agent "^1.0.0"
-
-selenium-server@^2.53.1:
-  version "2.53.1"
-  resolved "https://registry.yarnpkg.com/selenium-server/-/selenium-server-2.53.1.tgz#d681528812f3c2e0531a6b7e613e23bb02cce8a6"
-
-"semver@2 || 3 || 4 || 5", semver@^5.0.1, semver@^5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
-
-semver@~4.3.3:
-  version "4.3.6"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-4.3.6.tgz#300bc6e0e86374f7ba61068b5b1ecd57fc6532da"
-
-semver@~5.0.1:
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.0.3.tgz#77466de589cd5d3c95f138aa78bc569a3cb5d27a"
-
-serialize-javascript@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.3.0.tgz#86a4f3752f5c7e47295449b0bbb63d64ba533f05"
-
-set-blocking@^2.0.0, set-blocking@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
-
-set-immediate-shim@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
-
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-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
-
-setprototypeof@1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.0.3.tgz#66567e37043eeb4f04d91bd658c0cbefb55b8e04"
-
-sha.js@^2.4.0, sha.js@^2.4.8:
-  version "2.4.8"
-  resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.8.tgz#37068c2c476b6baf402d14a49c67f597921f634f"
-  dependencies:
-    inherits "^2.0.1"
-
-shebang-command@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
-  dependencies:
-    shebang-regex "^1.0.0"
-
-shebang-regex@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
-
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-  version "0.7.6"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.6.tgz#379cccfb56b91c8601e4793356eb5382924de9ad"
-  dependencies:
-    glob "^7.0.0"
-    interpret "^1.0.0"
-    rechoir "^0.6.2"
-
-shelljs@^0.7.5, shelljs@^0.7.8:
-  version "0.7.8"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.8.tgz#decbcf874b0d1e5fb72e14b164a9683048e9acb3"
-  dependencies:
-    glob "^7.0.0"
-    interpret "^1.0.0"
-    rechoir "^0.6.2"
-
-signal-exit@^3.0.0:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
-
-slash@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
-
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-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
-
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-  version "1.1.15"
-  resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-1.1.15.tgz#7f114b5b65fab3e2a35aa775bb12f0d1c649bf16"
-
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-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/sntp/-/sntp-0.2.4.tgz#fb885f18b0f3aad189f824862536bceeec750900"
-  dependencies:
-    hoek "0.9.x"
-
-sntp@1.x.x:
-  version "1.0.9"
-  resolved "https://registry.yarnpkg.com/sntp/-/sntp-1.0.9.tgz#6541184cc90aeea6c6e7b35e2659082443c66198"
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-    hoek "2.x.x"
-
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-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-0.5.0.tgz#cb6d4bb8bec81e1078b99677f9ced0046066bb8b"
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-    socket.io-parser "2.3.1"
-
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-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-1.7.3.tgz#b30e86aa10d5ef3546601c09cde4765e381da377"
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-    component-bind "1.0.0"
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-    debug "2.3.3"
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-    socket.io-parser "2.3.1"
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-socket.io-parser@2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-2.3.1.tgz#dd532025103ce429697326befd64005fcfe5b4a0"
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-    debug "2.2.0"
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-    json3 "3.3.2"
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-socket.io@1.7.3:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-1.7.3.tgz#b8af9caba00949e568e369f1327ea9be9ea2461b"
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-    debug "2.3.3"
-    engine.io "1.8.3"
-    has-binary "0.1.7"
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-    socket.io-adapter "0.5.0"
-    socket.io-client "1.7.3"
-    socket.io-parser "2.3.1"
-
-socks-proxy-agent@2:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/socks-proxy-agent/-/socks-proxy-agent-2.1.0.tgz#ddfb01b5dbea5fc879490ca38a25fe87d3d15912"
-  dependencies:
-    agent-base "2"
-    extend "3"
-    socks "~1.1.5"
-
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-  version "1.1.10"
-  resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.10.tgz#5b8b7fc7c8f341c53ed056e929b7bf4de8ba7b5a"
-  dependencies:
-    ip "^1.1.4"
-    smart-buffer "^1.0.13"
-
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-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-1.1.2.tgz#9889019d1024cce55cdc069498337ef6186a11a1"
-
-source-map-support@^0.4.0, source-map-support@^0.4.2:
-  version "0.4.15"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.15.tgz#03202df65c06d2bd8c7ec2362a193056fef8d3b1"
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-    source-map "^0.5.6"
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-source-map@^0.1.41:
-  version "0.1.43"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.43.tgz#c24bc146ca517c1471f5dacbe2571b2b7f9e3346"
-  dependencies:
-    amdefine ">=0.0.4"
-
-source-map@^0.4.4:
-  version "0.4.4"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
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-    amdefine ">=0.0.4"
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-source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, source-map@~0.5.3:
-  version "0.5.6"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
-
-source-map@~0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
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-    amdefine ">=0.0.4"
-
-spawn-sync@^1.0.15:
-  version "1.0.15"
-  resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
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-    concat-stream "^1.4.7"
-    os-shim "^0.1.2"
-
-spdx-correct@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-1.0.2.tgz#4b3073d933ff51f3912f03ac5519498a4150db40"
-  dependencies:
-    spdx-license-ids "^1.0.2"
-
-spdx-expression-parse@~1.0.0:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/spdx-expression-parse/-/spdx-expression-parse-1.0.4.tgz#9bdf2f20e1f40ed447fbe273266191fced51626c"
-
-spdx-license-ids@^1.0.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-1.2.2.tgz#c9df7a3424594ade6bd11900d596696dc06bac57"
-
-split2@^2.0.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/split2/-/split2-2.1.1.tgz#7a1f551e176a90ecd3345f7246a0cfe175ef4fd0"
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-    through2 "^2.0.2"
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-split@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/split/-/split-1.0.0.tgz#c4395ce683abcd254bc28fe1dabb6e5c27dcffae"
-  dependencies:
-    through "2"
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-split@~0.2.10:
-  version "0.2.10"
-  resolved "https://registry.yarnpkg.com/split/-/split-0.2.10.tgz#67097c601d697ce1368f418f06cd201cf0521a57"
-  dependencies:
-    through "2"
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-sprintf-js@^1.0.3, sprintf-js@~1.0.2:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
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-sshpk@^1.7.0:
-  version "1.13.1"
-  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.13.1.tgz#512df6da6287144316dc4c18fe1cf1d940739be3"
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-    assert-plus "^1.0.0"
-    dashdash "^1.12.0"
-    getpass "^0.1.1"
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-    ecc-jsbn "~0.1.1"
-    jsbn "~0.1.0"
-    tweetnacl "~0.14.0"
-
-"statuses@>= 1.3.1 < 2", statuses@~1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.3.1.tgz#faf51b9eb74aaef3b3acf4ad5f61abf24cb7b93e"
-
-stream-browserify@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
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-    readable-stream "^2.0.2"
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-stream-combiner@~0.0.2:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/stream-combiner/-/stream-combiner-0.0.4.tgz#4d5e433c185261dde623ca3f44c586bcf5c4ad14"
-  dependencies:
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-
-stream-http@^2.3.1:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.7.2.tgz#40a050ec8dc3b53b33d9909415c02c0bf1abfbad"
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-string-width@^1.0.1, string-width@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
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-string-width@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.0.0.tgz#635c5436cc72a6e0c387ceca278d4e2eec52687e"
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-string_decoder@^0.10.25, string_decoder@~0.10.x:
-  version "0.10.31"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
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-string_decoder@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.2.tgz#b29e1f4e1125fa97a10382b8a533737b7491e179"
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-    safe-buffer "~5.0.1"
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-stringstream@~0.0.4:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
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-strip-ansi@^3.0.0, strip-ansi@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
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-  version "1.2.14"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.2.14.tgz#9a87c4378f03e827cecaf1acdf56c736c01c14e5"
-  dependencies:
-    isexe "^2.0.0"
-
-wide-align@^1.1.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
-  dependencies:
-    string-width "^1.0.2"
-
-window-size@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
-
-word-wrap@^1.0.3:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
-
-wordwrap@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
-
-wordwrap@^1.0.0, wordwrap@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
-
-wordwrap@~0.0.2:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-
-wrap-ansi@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
-  dependencies:
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
-
-wrappy@1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
-
-write@^0.2.1:
-  version "0.2.1"
-  resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
-  dependencies:
-    mkdirp "^0.5.1"
-
-ws@1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-1.1.2.tgz#8a244fa052401e08c9886cf44a85189e1fd4067f"
-  dependencies:
-    options ">=0.0.5"
-    ultron "1.0.x"
-
-wtf-8@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/wtf-8/-/wtf-8-1.0.0.tgz#392d8ba2d0f1c34d1ee2d630f15d0efb68e1048a"
-
-xhr2@^0.1.3:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/xhr2/-/xhr2-0.1.4.tgz#7f87658847716db5026323812f818cadab387a5f"
-
-xmlhttprequest-ssl@1.5.3:
-  version "1.5.3"
-  resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz#185a888c04eca46c3e4070d99f7b49de3528992d"
-
-xregexp@2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-2.0.0.tgz#52a63e56ca0b84a7f3a5f3d61872f126ad7a5943"
-
-xtend@^4.0.0, xtend@~4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
-
-y18n@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
-
-yallist@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
-
-yargs-parser@^4.2.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
-  dependencies:
-    camelcase "^3.0.0"
-
-yargs@^6.0.0:
-  version "6.6.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-6.6.0.tgz#782ec21ef403345f830a808ca3d513af56065208"
-  dependencies:
-    camelcase "^3.0.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^1.4.0"
-    read-pkg-up "^1.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^1.0.2"
-    which-module "^1.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^4.2.0"
-
-yargs@~3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
-  dependencies:
-    camelcase "^1.0.2"
-    cliui "^2.1.0"
-    decamelize "^1.0.0"
-    window-size "0.1.0"
-
-yauzl@2.4.1:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"
-  dependencies:
-    fd-slicer "~1.0.1"
-
-yeast@0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
-
-zip-stream@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.1.1.tgz#5216b48bbb4d2651f64d5c6e6f09eb4a7399d557"
-  dependencies:
-    archiver-utils "^1.3.0"
-    compress-commons "^1.1.0"
-    lodash "^4.8.0"
-    readable-stream "^2.0.0"

From 06741f326625e2db78d092e586923b97ba006906 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Sep 2017 12:51:29 -0400
Subject: [PATCH 029/911] fix: computed properties should not be cached during
 SSR

ref: vuejs/vuex#877
---
 src/core/instance/state.js  | 28 +++++++++++++++++++++++-----
 test/ssr/ssr-string.spec.js | 21 +++++++++++++++++++--
 2 files changed, 42 insertions(+), 7 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index bbe7f882984..749aafcddb9 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -23,6 +23,7 @@ import {
   nativeWatch,
   validateProp,
   isPlainObject,
+  isServerRendering,
   isReservedAttribute
 } from '../util/index'
 
@@ -169,6 +170,8 @@ const computedWatcherOptions = { lazy: true }
 function initComputed (vm: Component, computed: Object) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed')
   const watchers = vm._computedWatchers = Object.create(null)
+  // computed properties are just getters during SSR
+  const isSSR = isServerRendering()
 
   for (const key in computed) {
     const userDef = computed[key]
@@ -179,8 +182,16 @@ function initComputed (vm: Component, computed: Object) {
         vm
       )
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions)
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      )
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -197,13 +208,20 @@ function initComputed (vm: Component, computed: Object) {
   }
 }
 
-export function defineComputed (target: any, key: string, userDef: Object | Function) {
+export function defineComputed (
+  target: any,
+  key: string,
+  userDef: Object | Function
+) {
+  const shouldCache = !isServerRendering()
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key)
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef
     sharedPropertyDefinition.set = noop
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index d9c330004e1..75de1bbaaef 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -909,13 +909,30 @@ describe('SSR: renderToString', () => {
   })
 
   it('should escape static strings', done => {
-    renderVmWithOptions(({
+    renderVmWithOptions({
       template: `<div>&lt;foo&gt;</div>`
-    }), res => {
+    }, res => {
       expect(res).toBe(`<div data-server-rendered="true">&lt;foo&gt;</div>`)
       done()
     })
   })
+
+  it('should not cache computed properties', done => {
+    renderVmWithOptions({
+      template: `<div>{{ foo }}</div>`,
+      data: () => ({ bar: 1 }),
+      computed: {
+        foo () { return this.bar + 1 }
+      },
+      created () {
+        this.foo // access
+        this.bar++ // trigger change
+      }
+    }, res => {
+      expect(res).toBe(`<div data-server-rendered="true">3</div>`)
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From d77b95317cedae299605fb692e2c7c67796b17cb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Sep 2017 17:00:31 -0400
Subject: [PATCH 030/911] fix: handle special case for allowfullscreen on
 <embed>

close #6202
---
 src/platforms/web/runtime/modules/attrs.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index 628907ae8ed..47371a72a25 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -64,7 +64,12 @@ function setAttr (el: Element, key: string, value: any) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key)
     } else {
-      el.setAttribute(key, key)
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key
+      el.setAttribute(key, value)
     }
   } else if (isEnumeratedAttr(key)) {
     el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true')

From d6e6f1deb180a4f47e94496724623b9e6d8e08b3 Mon Sep 17 00:00:00 2001
From: Nick Messing <dot.nick.dot.messing@gmail.com>
Date: Sat, 2 Sep 2017 09:35:41 +1200
Subject: [PATCH 031/911] fix(v-model): Allow using array value with array
 v-model in checkboxes (#6220)

fix #6219
---
 .../web/compiler/directives/model.js          |  2 +-
 .../directives/model-checkbox.spec.js         | 28 +++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 8f5951eac56..7c662629b65 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -93,7 +93,7 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       `var $$v=${number ? '_n(' + valueBinding + ')' : valueBinding},` +
           '$$i=_i($$a,$$v);' +
-      `if($$el.checked){$$i<0&&(${value}=$$a.concat($$v))}` +
+      `if($$el.checked){$$i<0&&(${value}=$$a.concat([$$v]))}` +
       `else{$$i>-1&&(${value}=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}` +
     `}else{${genAssignmentCode(value, '$$c')}}`,
     null, true
diff --git a/test/unit/features/directives/model-checkbox.spec.js b/test/unit/features/directives/model-checkbox.spec.js
index 2c296ccbf5a..e102af62609 100644
--- a/test/unit/features/directives/model-checkbox.spec.js
+++ b/test/unit/features/directives/model-checkbox.spec.js
@@ -161,6 +161,34 @@ describe('Directive v-model checkbox', () => {
     }).then(done)
   })
 
+  it('bind to Array value with array value bindings (object loose equal)', done => {
+    const vm = new Vue({
+      data: {
+        test: [{ a: 1 }]
+      },
+      template: `
+        <div>
+          <input type="checkbox" v-model="test" :value="{ a: 1 }">
+          <input type="checkbox" v-model="test" :value="[2]">
+        </div>
+      `
+    }).$mount()
+    document.body.appendChild(vm.$el)
+    expect(vm.$el.children[0].checked).toBe(true)
+    expect(vm.$el.children[1].checked).toBe(false)
+    vm.$el.children[0].click()
+    expect(vm.test.length).toBe(0)
+    vm.$el.children[1].click()
+    expect(vm.test).toEqual([[2]])
+    vm.$el.children[0].click()
+    expect(vm.test).toEqual([[2], { a: 1 }])
+    vm.test = [{ a: 1 }]
+    waitForUpdate(() => {
+      expect(vm.$el.children[0].checked).toBe(true)
+      expect(vm.$el.children[1].checked).toBe(false)
+    }).then(done)
+  })
+
   it('.number modifier', () => {
     const vm = new Vue({
       data: {

From 50257a58810a83b27316a793adf8d59a81ef3cf0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Sep 2017 17:59:37 -0400
Subject: [PATCH 032/911] chore: cover more cases in ssr bench

---
 benchmarks/ssr/common.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/benchmarks/ssr/common.js b/benchmarks/ssr/common.js
index 4ce56fb0bf6..688832f6dda 100644
--- a/benchmarks/ssr/common.js
+++ b/benchmarks/ssr/common.js
@@ -45,8 +45,8 @@ module.exports = {
               template: '<td class="item">' +
                 // 25 plain elements for each cell
                 '<ul class="yoyo">' +
-                  '<li class="hihi" v-for="i in 5">' +
-                    '<span v-for="i in 5">fsefs</span>' +
+                  `<li v-for="i in 5" :class="'hihi' + i">` +
+                    `<span :id="i + '_' + j" v-for="j in 5">fsefs</span>` +
                     '</li>' +
                 '</ul>' +
               '</td>'

From 02f8b806768d70c589e646c384e592e93387b994 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Sep 2017 18:08:12 -0400
Subject: [PATCH 033/911] fix(ssr): fix cachedEscape memory issue

close #6332
---
 src/platforms/web/server/modules/attrs.js         | 4 ++--
 src/platforms/web/server/modules/class.js         | 4 ++--
 src/platforms/web/server/modules/style.js         | 4 ++--
 src/platforms/web/server/util.js                  | 4 +---
 src/server/optimizing-compiler/runtime-helpers.js | 6 +++---
 5 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/src/platforms/web/server/modules/attrs.js b/src/platforms/web/server/modules/attrs.js
index d1ebc76b9db..dc4ccd2465c 100644
--- a/src/platforms/web/server/modules/attrs.js
+++ b/src/platforms/web/server/modules/attrs.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { cachedEscape } from '../util'
+import { escape } from '../util'
 
 import {
   isDef,
@@ -50,7 +50,7 @@ export function renderAttr (key: string, value: string): string {
   } else if (isEnumeratedAttr(key)) {
     return ` ${key}="${isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'}"`
   } else if (!isFalsyAttrValue(value)) {
-    return ` ${key}="${cachedEscape(String(value))}"`
+    return ` ${key}="${escape(String(value))}"`
   }
   return ''
 }
diff --git a/src/platforms/web/server/modules/class.js b/src/platforms/web/server/modules/class.js
index 95c46a31039..c19040ed9f4 100644
--- a/src/platforms/web/server/modules/class.js
+++ b/src/platforms/web/server/modules/class.js
@@ -1,11 +1,11 @@
 /* @flow */
 
-import { cachedEscape } from '../util'
+import { escape } from '../util'
 import { genClassForVnode } from 'web/util/index'
 
 export default function renderClass (node: VNodeWithData): ?string {
   const classList = genClassForVnode(node)
   if (classList !== '') {
-    return ` class="${cachedEscape(classList)}"`
+    return ` class="${escape(classList)}"`
   }
 }
diff --git a/src/platforms/web/server/modules/style.js b/src/platforms/web/server/modules/style.js
index 5857fcf0c98..fc043ef3409 100644
--- a/src/platforms/web/server/modules/style.js
+++ b/src/platforms/web/server/modules/style.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { cachedEscape } from '../util'
+import { escape } from '../util'
 import { hyphenate } from 'shared/util'
 import { getStyle } from 'web/util/style'
 
@@ -23,6 +23,6 @@ export function genStyle (style: Object): string {
 export default function renderStyle (vnode: VNodeWithData): ?string {
   const styleText = genStyle(getStyle(vnode, false))
   if (styleText !== '') {
-    return ` style=${JSON.stringify(cachedEscape(styleText))}`
+    return ` style=${JSON.stringify(escape(styleText))}`
   }
 }
diff --git a/src/platforms/web/server/util.js b/src/platforms/web/server/util.js
index fff2b2d86fb..774686dae6d 100644
--- a/src/platforms/web/server/util.js
+++ b/src/platforms/web/server/util.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { makeMap, cached } from 'shared/util'
+import { makeMap } from 'shared/util'
 
 const isAttr = makeMap(
   'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
@@ -46,8 +46,6 @@ export function escape (s: string) {
   return s.replace(/[<>"&]/g, escapeChar)
 }
 
-export const cachedEscape = cached(escape)
-
 function escapeChar (a) {
   return ESC[a] || a
 }
diff --git a/src/server/optimizing-compiler/runtime-helpers.js b/src/server/optimizing-compiler/runtime-helpers.js
index 48f0828faa0..65ec44babca 100644
--- a/src/server/optimizing-compiler/runtime-helpers.js
+++ b/src/server/optimizing-compiler/runtime-helpers.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { escape, cachedEscape } from 'web/server/util'
+import { escape } from 'web/server/util'
 import { isObject, extend } from 'shared/util'
 import { renderAttr } from 'web/server/modules/attrs'
 import { renderClass } from 'web/util/class'
@@ -123,7 +123,7 @@ function renderSSRClass (
   dynamic: any
 ): string {
   const res = renderClass(staticClass, dynamic)
-  return res === '' ? res : ` class="${cachedEscape(res)}"`
+  return res === '' ? res : ` class="${escape(res)}"`
 }
 
 function renderSSRStyle (
@@ -136,5 +136,5 @@ function renderSSRStyle (
   if (dynamic) extend(style, normalizeStyleBinding(dynamic))
   if (extra) extend(style, extra)
   const res = genStyle(style)
-  return res === '' ? res : ` style=${JSON.stringify(cachedEscape(res))}`
+  return res === '' ? res : ` style=${JSON.stringify(escape(res))}`
 }

From 8fc6bc882708a725693b50a55f56cfde653ee48d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Sep 2017 18:34:10 -0400
Subject: [PATCH 034/911] chore: warn methods that conflict with internals

close #6312
---
 src/core/instance/state.js                 | 14 ++++++++++----
 test/unit/features/options/methods.spec.js | 13 +++++++++++--
 test/unit/features/options/props.spec.js   |  2 +-
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 749aafcddb9..37f1ab152f1 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -137,7 +137,7 @@ function initData (vm: Component) {
     if (process.env.NODE_ENV !== 'production') {
       if (methods && hasOwn(methods, key)) {
         warn(
-          `method "${key}" has already been defined as a data property.`,
+          `Method "${key}" has already been defined as a data property.`,
           vm
         )
       }
@@ -260,22 +260,28 @@ function initMethods (vm: Component, methods: Object) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods')
   const props = vm.$options.props
   for (const key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm)
     if (process.env.NODE_ENV !== 'production') {
       if (methods[key] == null) {
         warn(
-          `method "${key}" has an undefined value in the component definition. ` +
+          `Method "${key}" has an undefined value in the component definition. ` +
           `Did you reference the function correctly?`,
           vm
         )
       }
       if (props && hasOwn(props, key)) {
         warn(
-          `method "${key}" has already been defined as a prop.`,
+          `Method "${key}" has already been defined as a prop.`,
           vm
         )
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          `Method "${key}" conflicts with an existing Vue instance method. ` +
+          `Avoid defining component methods that start with _ or $.`
+        )
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm)
   }
 }
 
diff --git a/test/unit/features/options/methods.spec.js b/test/unit/features/options/methods.spec.js
index 21838f236ce..96a0de672e3 100644
--- a/test/unit/features/options/methods.spec.js
+++ b/test/unit/features/options/methods.spec.js
@@ -25,7 +25,7 @@ describe('Options methods', () => {
         hello: undefined
       }
     })
-    expect(`method "hello" has an undefined value in the component definition`).toHaveBeenWarned()
+    expect(`Method "hello" has an undefined value in the component definition`).toHaveBeenWarned()
   })
 
   it('should warn methods conflicting with data', () => {
@@ -37,6 +37,15 @@ describe('Options methods', () => {
         foo () {}
       }
     })
-    expect(`method "foo" has already been defined as a data property`).toHaveBeenWarned()
+    expect(`Method "foo" has already been defined as a data property`).toHaveBeenWarned()
+  })
+
+  it('should warn methods conflicting with internal methods', () => {
+    new Vue({
+      methods: {
+        _update () {}
+      }
+    })
+    expect(`Method "_update" conflicts with an existing Vue instance method`).toHaveBeenWarned()
   })
 })
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index b933da375d7..818f2af61b6 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -333,7 +333,7 @@ describe('Options props', () => {
         }
       }
     }).$mount()
-    expect(`method "a" has already been defined as a prop`).toHaveBeenWarned()
+    expect(`Method "a" has already been defined as a prop`).toHaveBeenWarned()
     expect(`Avoid mutating a prop directly`).toHaveBeenWarned()
   })
 

From f76d16ed9507d4c2a90243ea3d77ccf00df29346 Mon Sep 17 00:00:00 2001
From: Nick Messing <dot.nick.dot.messing@gmail.com>
Date: Sat, 2 Sep 2017 10:49:39 +1200
Subject: [PATCH 035/911] fix(vdom): Don't replace input for text-like type
 change (#6344)

fix #6313
---
 src/core/vdom/patch.js                        |  7 ++---
 src/platforms/web/runtime/directives/model.js |  5 ++--
 src/platforms/web/util/element.js             |  2 ++
 .../modules/vdom/patch/edge-cases.spec.js     | 26 +++++++++++++++++++
 4 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index e4bec3269f5..db491e88aca 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -6,8 +6,6 @@
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -17,6 +15,7 @@ import config from '../config'
 import { SSR_ATTR } from 'shared/constants'
 import { registerRef } from './modules/ref'
 import { activeInstance } from '../instance/lifecycle'
+import { isTextInputType } from 'web/util/element'
 
 import {
   warn,
@@ -48,14 +47,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') return true
   let i
   const typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type
   const typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index c6fac9dccaa..89239816882 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -3,11 +3,10 @@
  * properties to Elements.
  */
 
-import { looseEqual, looseIndexOf, makeMap } from 'shared/util'
+import { isTextInputType } from 'web/util/element'
+import { looseEqual, looseIndexOf } from 'shared/util'
 import { warn, isAndroid, isIE9, isIE, isEdge } from 'core/util/index'
 
-const isTextInputType = makeMap('text,number,password,search,email,tel,url')
-
 /* istanbul ignore if */
 if (isIE9) {
   // http://www.matts411.com/post/internet-explorer-9-oninput/
diff --git a/src/platforms/web/util/element.js b/src/platforms/web/util/element.js
index 1cea48d5e5b..65f1aafbbf2 100644
--- a/src/platforms/web/util/element.js
+++ b/src/platforms/web/util/element.js
@@ -73,3 +73,5 @@ export function isUnknownElement (tag: string): boolean {
     return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
   }
 }
+
+export const isTextInputType = makeMap('text,number,password,search,email,tel,url')
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 1434ee46c6c..f80a741f55a 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -135,4 +135,30 @@ describe('vdom patch: edge cases', () => {
       expect(vm.$el.children[0].value).toBe('a')
     }).then(done)
   })
+
+  // #6313
+  it('should not replace node when switching between text-like inputs', done => {
+    const vm = new Vue({
+      data: { show: false },
+      template: `
+        <div>
+          <input :type="show ? 'text' : 'password'">
+        </div>
+      `
+    }).$mount()
+    const node = vm.$el.children[0]
+    expect(vm.$el.children[0].type).toBe('password')
+    vm.$el.children[0].value = 'test'
+    vm.show = true
+    waitForUpdate(() => {
+      expect(vm.$el.children[0]).toBe(node)
+      expect(vm.$el.children[0].value).toBe('test')
+      expect(vm.$el.children[0].type).toBe('text')
+      vm.show = false
+    }).then(() => {
+      expect(vm.$el.children[0]).toBe(node)
+      expect(vm.$el.children[0].value).toBe('test')
+      expect(vm.$el.children[0].type).toBe('password')
+    }).then(done)
+  })
 })

From 230c6ae7822347b9b2a659503291e45fcc58fe41 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Sep 2017 12:50:57 -0400
Subject: [PATCH 036/911] fix(vdom): avoid diff de-opt when both head/tail are
 different

fix #6502
---
 src/core/vdom/patch.js                        | 11 +++++++-
 test/unit/modules/vdom/patch/children.spec.js | 27 ++++++++++++++++---
 2 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index db491e88aca..4fcb9157090 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -401,7 +401,9 @@ export function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx]
       } else {
         if (isUndef(oldKeyToIdx)) oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx)
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx)
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)
           newStartVnode = newCh[++newStartIdx]
@@ -435,6 +437,13 @@ export function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (let i = start; i < end; i++) {
+      const c = oldCh[i]
+      if (isDef(c) && sameVnode(node, c)) return i
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
diff --git a/test/unit/modules/vdom/patch/children.spec.js b/test/unit/modules/vdom/patch/children.spec.js
index 8e8bbd959d5..1bba91f11d2 100644
--- a/test/unit/modules/vdom/patch/children.spec.js
+++ b/test/unit/modules/vdom/patch/children.spec.js
@@ -1,5 +1,5 @@
 import { patch } from 'web/runtime/patch'
-import VNode from 'core/vdom/vnode'
+import VNode, { createEmptyVNode } from 'core/vdom/vnode'
 
 function prop (name) {
   return obj => { return obj[name] }
@@ -445,7 +445,7 @@ describe('vdom patch: children', () => {
     expect(child2.className).toBe('')
   })
 
-  it('should handle static vnodes properly', function () {
+  it('should handle static vnodes properly', () => {
     function makeNode (text) {
       return new VNode('div', undefined, [
         new VNode(undefined, undefined, undefined, text)
@@ -466,7 +466,7 @@ describe('vdom patch: children', () => {
     expect(elm.textContent).toBe('ABC')
   })
 
-  it('should handle static vnodes inside ', function () {
+  it('should handle static vnodes inside ', () => {
     function makeNode (text) {
       return new VNode('div', undefined, [
         new VNode(undefined, undefined, undefined, text)
@@ -486,4 +486,25 @@ describe('vdom patch: children', () => {
     elm = patch(vnode2, vnode3)
     expect(elm.textContent).toBe('ABC')
   })
+
+  // #6502
+  it('should not de-opt when both head and tail are changed', () => {
+    const vnode1 = new VNode('div', {}, [
+      createEmptyVNode(),
+      new VNode('div'),
+      createEmptyVNode()
+    ])
+    const vnode2 = new VNode('div', {}, [
+      new VNode('p'),
+      new VNode('div'),
+      new VNode('p')
+    ])
+    let root = patch(null, vnode1)
+    const original = root.childNodes[1]
+
+    root = patch(vnode1, vnode2)
+    const postPatch = root.childNodes[1]
+
+    expect(postPatch).toBe(original)
+  })
 })

From 2d75aba5e1a3f25aa30f90f95e603ba424cf1730 Mon Sep 17 00:00:00 2001
From: Palash Mondal <palashm@live.in>
Date: Tue, 5 Sep 2017 20:32:03 +0530
Subject: [PATCH 037/911] chore: fixed a small typo in CONTRIBUTING.md (#6517)

---
 .github/CONTRIBUTING.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index f903dc0a4c4..4bd77311be5 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -49,7 +49,7 @@ The `setup` script links two git hooks:
 - `pre-commit`: runs ESLint on staged files.
 - `commit-msg`: validates commit message format (see below).
 
-### Commiting Changes
+### Committing Changes
 
 Commit messages should follow the [commit message convention](./COMMIT_CONVENTION.md) so that changelogs can be automatically generated. If git hooks have been properly linked, commit messages will be automatically validated upon commit. It is recommended to use `npm run commit` instead of `git commit`, which provides an interactive CLI for generating proper commit messages.
 

From a7444975343f7828004d90bfb0deeb98db0f46e7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Sep 2017 11:29:22 -0400
Subject: [PATCH 038/911] fix: ensure outer bindings on nested HOC are properly
 re-applied on inner root element change

---
 src/core/vdom/patch.js                        | 14 ++++++----
 .../modules/vdom/patch/edge-cases.spec.js     | 28 +++++++++++++++++++
 2 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 4fcb9157090..dcdaf239eef 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -660,14 +660,18 @@ export function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           let ancestor = vnode.parent
+          const patchable = isPatchable(vnode)
           while (ancestor) {
+            for (let i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor)
+            }
             ancestor.elm = vnode.elm
-            ancestor = ancestor.parent
-          }
-          if (isPatchable(vnode)) {
-            for (let i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent)
+            if (patchable) {
+              for (let i = 0; i < cbs.create.length; ++i) {
+                cbs.create[i](emptyNode, ancestor)
+              }
             }
+            ancestor = ancestor.parent
           }
         }
 
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index f80a741f55a..05135246b36 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -161,4 +161,32 @@ describe('vdom patch: edge cases', () => {
       expect(vm.$el.children[0].type).toBe('password')
     }).then(done)
   })
+
+  it('should properly patch nested HOC when root element is replaced', done => {
+    const vm = new Vue({
+      template: `<foo class="hello" ref="foo" />`,
+      components: {
+        foo: {
+          template: `<bar ref="bar" />`,
+          components: {
+            bar: {
+              template: `<div v-if="ok"></div><span v-else></span>`,
+              data () {
+                return { ok: true }
+              }
+            }
+          }
+        }
+      }
+    }).$mount()
+
+    expect(vm.$refs.foo.$refs.bar.$el.tagName).toBe('DIV')
+    expect(vm.$refs.foo.$refs.bar.$el.className).toBe(`hello`)
+
+    vm.$refs.foo.$refs.bar.ok = false
+    waitForUpdate(() => {
+      expect(vm.$refs.foo.$refs.bar.$el.tagName).toBe('SPAN')
+      expect(vm.$refs.foo.$refs.bar.$el.className).toBe(`hello`)
+    }).then(done)
+  })
 })

From 538ad20d8a37fe7ee2463ff20ac9557af70e0d33 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Sep 2017 12:59:38 -0400
Subject: [PATCH 039/911] fix(directive): should invoke unbind & inserted on
 inner component root element change

fix #6513
---
 src/core/vdom/patch.js                        | 10 +++++
 test/unit/features/options/directives.spec.js | 38 +++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index dcdaf239eef..4939811562f 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -670,6 +670,16 @@ export function createPatchFunction (backend) {
               for (let i = 0; i < cbs.create.length; ++i) {
                 cbs.create[i](emptyNode, ancestor)
               }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              const insert = ancestor.data.hook.insert
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (let i = 1; i < insert.fns.length; i++) {
+                  insert.fns[i]()
+                }
+              }
             }
             ancestor = ancestor.parent
           }
diff --git a/test/unit/features/options/directives.spec.js b/test/unit/features/options/directives.spec.js
index 44362250fe2..f15dd77f8e6 100644
--- a/test/unit/features/options/directives.spec.js
+++ b/test/unit/features/options/directives.spec.js
@@ -227,4 +227,42 @@ describe('Options directives', () => {
     }).$mount()
     expect('Failed to resolve directive: test').toHaveBeenWarned()
   })
+
+  // #6513
+  it('should invoke unbind & inserted on inner component root element change', done => {
+    const dir = {
+      bind: jasmine.createSpy('bind'),
+      inserted: jasmine.createSpy('inserted'),
+      unbind: jasmine.createSpy('unbind')
+    }
+
+    const Child = {
+      template: `<div v-if="ok"/><span v-else/>`,
+      data: () => ({ ok: true })
+    }
+
+    const vm = new Vue({
+      template: `<child ref="child" v-test />`,
+      directives: { test: dir },
+      components: { Child }
+    }).$mount()
+
+    const oldEl = vm.$el
+    expect(dir.bind.calls.count()).toBe(1)
+    expect(dir.bind.calls.argsFor(0)[0]).toBe(oldEl)
+    expect(dir.inserted.calls.count()).toBe(1)
+    expect(dir.inserted.calls.argsFor(0)[0]).toBe(oldEl)
+    expect(dir.unbind).not.toHaveBeenCalled()
+
+    vm.$refs.child.ok = false
+    waitForUpdate(() => {
+      expect(vm.$el.tagName).toBe('SPAN')
+      expect(dir.bind.calls.count()).toBe(2)
+      expect(dir.bind.calls.argsFor(1)[0]).toBe(vm.$el)
+      expect(dir.inserted.calls.count()).toBe(2)
+      expect(dir.inserted.calls.argsFor(1)[0]).toBe(vm.$el)
+      expect(dir.unbind.calls.count()).toBe(1)
+      expect(dir.unbind.calls.argsFor(0)[0]).toBe(oldEl)
+    }).then(done)
+  })
 })

From 89f0d29f2d541aa5a1ac9690258cd7c7ee576ef6 Mon Sep 17 00:00:00 2001
From: AchillesJ <xujiongbo@gmail.com>
Date: Wed, 6 Sep 2017 03:12:35 +0800
Subject: [PATCH 040/911] fix: inherit SVG ns on component root node (#6511)

fix #6506
---
 src/core/vdom/create-element.js               |  2 +-
 test/unit/modules/vdom/create-element.spec.js | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index 783cfa7127b..c9f30d2287e 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -91,7 +91,7 @@ export function _createElement (
   let vnode, ns
   if (typeof tag === 'string') {
     let Ctor
-    ns = config.getTagNamespace(tag)
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag)
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
diff --git a/test/unit/modules/vdom/create-element.spec.js b/test/unit/modules/vdom/create-element.spec.js
index e2e8ce27a6d..c060343df19 100644
--- a/test/unit/modules/vdom/create-element.spec.js
+++ b/test/unit/modules/vdom/create-element.spec.js
@@ -141,6 +141,24 @@ describe('create-element', () => {
     expect(vnode.children[0].children[0].ns).toBeUndefined()
   })
 
+  // #6506
+  it('render SVGAElement in a component correctly', () => {
+    const vm = new Vue({
+      template: `
+        <svg>
+          <test></test>
+        </svg>
+      `,
+      components: {
+        test: { render: h => h('a') }
+      }
+    }).$mount()
+    const testComp = vm.$children[0]
+    expect(testComp.$vnode.ns).toBe('svg')
+    expect(testComp._vnode.tag).toBe('a')
+    expect(testComp._vnode.ns).toBe('svg')
+  })
+
   it('warn observed data objects', () => {
     new Vue({
       data: {

From 08a18dd7b87c67f419ee85681300a99fcf05f4f8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Sep 2017 15:24:50 -0400
Subject: [PATCH 041/911] build: add types as allowed commit type

---
 build/git-hooks/commit-msg | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/git-hooks/commit-msg b/build/git-hooks/commit-msg
index d8c98db85aa..d240e0b2647 100755
--- a/build/git-hooks/commit-msg
+++ b/build/git-hooks/commit-msg
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 # Validate commit log
-commit_regex='^Merge.+|(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert)(\(.+\))?: .{1,50}'
+commit_regex='^Merge.+|(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert|types)(\(.+\))?: .{1,50}'
 
 if ! grep -iqE "$commit_regex" "$1"; then
     echo

From 0b2929a3d69eb39c188112d2ccd18c2b8fde155c Mon Sep 17 00:00:00 2001
From: JounQin <admin@1stg.me>
Date: Tue, 5 Sep 2017 14:25:16 -0500
Subject: [PATCH 042/911] types: add EsModuleComponent definition (#6477)

---
 types/options.d.ts         | 7 ++++++-
 types/test/es-module.ts    | 5 +++++
 types/test/options-test.ts | 8 +++++---
 3 files changed, 16 insertions(+), 4 deletions(-)
 create mode 100644 types/test/es-module.ts

diff --git a/types/options.d.ts b/types/options.d.ts
index b1ab1256659..0de8e8f7de5 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -6,10 +6,15 @@ type Constructor = {
 }
 
 export type Component = typeof Vue | ComponentOptions<Vue> | FunctionalComponentOptions;
+
+interface EsModuleComponent {
+  default: Component
+}
+
 export type AsyncComponent = (
   resolve: (component: Component) => void,
   reject: (reason?: any) => void
-) => Promise<Component> | Component | void;
+) => Promise<Component | EsModuleComponent> | Component | void;
 
 export interface ComponentOptions<V extends Vue> {
   data?: Object | ((this: V) => Object);
diff --git a/types/test/es-module.ts b/types/test/es-module.ts
new file mode 100644
index 00000000000..f124374df4f
--- /dev/null
+++ b/types/test/es-module.ts
@@ -0,0 +1,5 @@
+export default {
+  data() {
+    return {}
+  }
+}
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 28ce077e988..3f17b071a33 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -1,5 +1,5 @@
 import Vue = require("../index");
-import { ComponentOptions, FunctionalComponentOptions } from "../index";
+import { AsyncComponent, ComponentOptions, FunctionalComponentOptions } from "../index";
 
 interface Component extends Vue {
   a: number;
@@ -206,11 +206,13 @@ Vue.component('functional-component', {
   }
 } as FunctionalComponentOptions);
 
-Vue.component("async-component", (resolve, reject) => {
+Vue.component("async-component", ((resolve, reject) => {
   setTimeout(() => {
     resolve(Vue.component("component"));
   }, 0);
   return new Promise((resolve) => {
     resolve({ functional: true } as FunctionalComponentOptions);
   })
-});
+}) as AsyncComponent);
+
+Vue.component('async-es-module-component', (() => import('./es-module')) as AsyncComponent)

From 14ee9e74bf68024fcb53c305b1f15c6aab6e89d3 Mon Sep 17 00:00:00 2001
From: Liwei Qian <sliwey@users.noreply.github.com>
Date: Wed, 6 Sep 2017 03:48:43 +0800
Subject: [PATCH 043/911] perf: optimize the performance of hyphenate method.
 (#6274)

---
 src/shared/util.js | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/shared/util.js b/src/shared/util.js
index 4cf81eeb389..709fe146403 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -157,12 +157,9 @@ export const capitalize = cached((str: string): string => {
 /**
  * Hyphenate a camelCase string.
  */
-const hyphenateRE = /([^-])([A-Z])/g
+const hyphenateRE = /\B([A-Z])/g
 export const hyphenate = cached((str: string): string => {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 })
 
 /**

From 1b96ba7019077235bc3ad0888b00ab9285789edb Mon Sep 17 00:00:00 2001
From: superwf <superwf@gmail.com>
Date: Wed, 6 Sep 2017 03:54:53 +0800
Subject: [PATCH 044/911] refactor: remove repeat line in patch.js (#6269)

* [release] weex-vue-framework@2.4.2-weex.1 (#6196)

* build(release weex): ignore the file path of entries

* [release] weex-vue-framework@2.4.2-weex.1

* style($compile): remove repeat line

remove repeat line
---
 src/core/vdom/patch.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 4939811562f..9f13f621c50 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -406,7 +406,6 @@ export function createPatchFunction (backend) {
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx)
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)
-          newStartVnode = newCh[++newStartIdx]
         } else {
           elmToMove = oldCh[idxInOld]
           /* istanbul ignore if */
@@ -420,13 +419,12 @@ export function createPatchFunction (backend) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue)
             oldCh[idxInOld] = undefined
             canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm)
-            newStartVnode = newCh[++newStartIdx]
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)
-            newStartVnode = newCh[++newStartIdx]
           }
         }
+        newStartVnode = newCh[++newStartIdx]
       }
     }
     if (oldStartIdx > oldEndIdx) {

From a67b795b3661f6f223420339f3eeb07a913207de Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Wed, 6 Sep 2017 04:57:05 +0900
Subject: [PATCH 045/911] types: add TypeScript declarations of webpack plugins
 (#6325)

close #6301
---
 packages/vue-server-renderer/client-plugin.d.ts |  3 +++
 packages/vue-server-renderer/package.json       |  7 ++++---
 packages/vue-server-renderer/server-plugin.d.ts |  3 +++
 packages/vue-server-renderer/types/plugin.d.ts  |  9 +++++++++
 packages/vue-server-renderer/types/test.ts      | 15 +++++++++++++++
 5 files changed, 34 insertions(+), 3 deletions(-)
 create mode 100644 packages/vue-server-renderer/client-plugin.d.ts
 create mode 100644 packages/vue-server-renderer/server-plugin.d.ts
 create mode 100644 packages/vue-server-renderer/types/plugin.d.ts

diff --git a/packages/vue-server-renderer/client-plugin.d.ts b/packages/vue-server-renderer/client-plugin.d.ts
new file mode 100644
index 00000000000..005c0f619e9
--- /dev/null
+++ b/packages/vue-server-renderer/client-plugin.d.ts
@@ -0,0 +1,3 @@
+import { WebpackPlugin } from './types/plugin';
+declare const Plugin: WebpackPlugin;
+export = Plugin;
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index d5bd1520cfb..5a747220190 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -28,12 +28,13 @@
     "lodash.template": "^4.4.0",
     "lodash.uniq": "^4.5.0",
     "resolve": "^1.2.0",
-    "source-map": "0.5.6",
-    "serialize-javascript": "^1.3.0"
+    "serialize-javascript": "^1.3.0",
+    "source-map": "0.5.6"
   },
   "devDependencies": {
     "@types/node": "^7.0.22",
-    "typescript": "^2.3.3",
+    "@types/webpack": "^3.0.6",
+    "typescript": "^2.4.2",
     "vue": "file:../.."
   },
   "homepage": "https://github.com/vuejs/vue/tree/dev/packages/vue-server-renderer#readme"
diff --git a/packages/vue-server-renderer/server-plugin.d.ts b/packages/vue-server-renderer/server-plugin.d.ts
new file mode 100644
index 00000000000..005c0f619e9
--- /dev/null
+++ b/packages/vue-server-renderer/server-plugin.d.ts
@@ -0,0 +1,3 @@
+import { WebpackPlugin } from './types/plugin';
+declare const Plugin: WebpackPlugin;
+export = Plugin;
diff --git a/packages/vue-server-renderer/types/plugin.d.ts b/packages/vue-server-renderer/types/plugin.d.ts
new file mode 100644
index 00000000000..50b642290da
--- /dev/null
+++ b/packages/vue-server-renderer/types/plugin.d.ts
@@ -0,0 +1,9 @@
+import { Plugin } from 'webpack';
+
+interface WebpackPluginOptions {
+  filename?: string;
+}
+
+export interface WebpackPlugin {
+  new (options?: WebpackPluginOptions): Plugin;
+}
diff --git a/packages/vue-server-renderer/types/test.ts b/packages/vue-server-renderer/types/test.ts
index 06e2759aca0..381b85cf18b 100644
--- a/packages/vue-server-renderer/types/test.ts
+++ b/packages/vue-server-renderer/types/test.ts
@@ -1,4 +1,7 @@
 import Vue = require('vue');
+import VueSSRClientPlugin = require('../client-plugin');
+import VueSSRServerPlugin = require('../server-plugin');
+import webpack = require('webpack');
 import { readFileSync } from 'fs';
 import { createRenderer, createBundleRenderer } from '../';
 
@@ -82,3 +85,15 @@ bundleRenderer.renderToString(context, (err, html) => {
 bundleRenderer.renderToStream(context).on('data', chunk => {
   const html = chunk.toString();
 });
+
+// webpack plugins
+webpack({
+  plugins: [
+    new VueSSRClientPlugin({
+      filename: 'client-manifest.json'
+    }),
+    new VueSSRServerPlugin({
+      filename: 'server-bundle.json'
+    })
+  ]
+});

From 3c216755f6eb656c6d864265a8dc7b51b3ae971b Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Wed, 6 Sep 2017 04:01:50 +0800
Subject: [PATCH 046/911] fix(provide): provide should default to parentVal
 during merging (#6473)

fix #6436
---
 src/core/util/options.js                  |  2 +-
 test/unit/features/options/inject.spec.js | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 0d4f4eeeabe..70e4d015b4d 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -96,7 +96,7 @@ export function mergeDataOrFn (
         : childVal
       const defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined
+        : parentVal
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index e4d9f90e579..61111a7d431 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -545,4 +545,24 @@ describe('Options provide/inject', () => {
 
     expect(vm.$el.textContent).toBe(`foo: foo injected, bar: bar injected`)
   })
+
+  it('merge provide with object syntax when using Vue.extend', () => {
+    const child = {
+      inject: ['foo'],
+      template: `<span/>`,
+      created () {
+        injected = this.foo
+      }
+    }
+    const Ctor = Vue.extend({
+      provide: { foo: 'foo' },
+      render (h) {
+        return h(child)
+      }
+    })
+
+    new Ctor().$mount()
+
+    expect(injected).toEqual('foo')
+  })
 })

From 38d52182bf8915628314e2aea7d2cc41ec39a0d6 Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Wed, 6 Sep 2017 04:02:38 +0800
Subject: [PATCH 047/911] fix(types): allow variadic plugin use (#6363)

 fix #6357
---
 types/test/plugin-test.ts | 1 +
 types/vue.d.ts            | 1 +
 2 files changed, 2 insertions(+)

diff --git a/types/test/plugin-test.ts b/types/test/plugin-test.ts
index eb1a0d12afa..211f248ac9e 100644
--- a/types/test/plugin-test.ts
+++ b/types/test/plugin-test.ts
@@ -17,3 +17,4 @@ const installer: PluginFunction<Option> = function(Vue, option) { }
 
 Vue.use(plugin, new Option);
 Vue.use(installer, new Option);
+Vue.use(installer, new Option, new Option, new Option);
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 111f5fe99f4..d1cecb33093 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -99,6 +99,7 @@ export declare class Vue {
   static component(id: string, definition?: Component | AsyncComponent): typeof Vue;
 
   static use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): void;
+  static use(plugin: PluginObject<any> | PluginFunction<any>, ...options: any[]): void;
   static mixin(mixin: typeof Vue | ComponentOptions<Vue>): void;
   static compile(template: string): {
     render(createElement: typeof Vue.prototype.$createElement): VNode;

From 31d3ec62ceb40da4375c10c5bd02a7a8fee9fcc7 Mon Sep 17 00:00:00 2001
From: Stefan <mingmingwon@gmail.com>
Date: Wed, 6 Sep 2017 04:14:36 +0800
Subject: [PATCH 048/911] refactor: simplify html parser attribute regex
 (#6414)

---
 src/compiler/parser/html-parser.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index a7ffe8da741..5d1379aefb0 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -14,7 +14,7 @@ import { isNonPhrasingTag } from 'web/compiler/util'
 
 // Regular Expressions for parsing tags and attributes
 const singleAttrIdentifier = /([^\s"'<>/=]+)/
-const singleAttrAssign = /(?:=)/
+const singleAttrAssign = /(=)/
 const singleAttrValues = [
   // attr value double quotes
   /"([^"]*)"+/.source,
@@ -25,7 +25,7 @@ const singleAttrValues = [
 ]
 const attribute = new RegExp(
   '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
+  '(?:\\s*' + singleAttrAssign.source +
   '\\s*(?:' + singleAttrValues.join('|') + '))?'
 )
 

From 08bc7595fd57f8f52db83ae1b6bc9b7a33cdd4f9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Sep 2017 16:21:35 -0400
Subject: [PATCH 049/911] refactor: simplify html parser regex

---
 src/compiler/parser/html-parser.js | 23 ++++-------------------
 1 file changed, 4 insertions(+), 19 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index 5d1379aefb0..f9f78d5ccf8 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -13,29 +13,14 @@ import { makeMap, no } from 'shared/util'
 import { isNonPhrasingTag } from 'web/compiler/util'
 
 // Regular Expressions for parsing tags and attributes
-const singleAttrIdentifier = /([^\s"'<>/=]+)/
-const singleAttrAssign = /(=)/
-const singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-]
-const attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*' + singleAttrAssign.source +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-)
-
+const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 const ncname = '[a-zA-Z_][\\w\\-\\.]*'
-const qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')'
-const startTagOpen = new RegExp('^<' + qnameCapture)
+const qnameCapture = `((?:${ncname}\\:)?${ncname})`
+const startTagOpen = new RegExp(`^<${qnameCapture}`)
 const startTagClose = /^\s*(\/?)>/
-const endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>')
+const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`)
 const doctype = /^<!DOCTYPE [^>]+>/i
 const comment = /^<!--/
 const conditionalComment = /^<!\[/

From 679cd1fef448989bf645313c391e4134ecd9f593 Mon Sep 17 00:00:00 2001
From: AchillesJ <xujiongbo@gmail.com>
Date: Wed, 6 Sep 2017 04:23:53 +0800
Subject: [PATCH 050/911] fix: support prop type checking for primitive wrapper
 objects (#6450)

close #6447
---
 src/core/util/props.js                   |  7 ++++++-
 test/unit/features/options/props.spec.js | 11 +++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/core/util/props.js b/src/core/util/props.js
index 385347bd82f..3e57ae8e4f3 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -145,7 +145,12 @@ function assertType (value: any, type: Function): {
   let valid
   const expectedType = getType(type)
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase()
+    const t = typeof value
+    valid = t === expectedType.toLowerCase()
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value)
   } else if (expectedType === 'Array') {
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index 818f2af61b6..35348d2457b 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -206,6 +206,17 @@ describe('Options props', () => {
       expect('Expected Array').toHaveBeenWarned()
     })
 
+    it('primitive wrapper objects', () => {
+      /* eslint-disable no-new-wrappers */
+      makeInstance(new String('s'), String)
+      expect(console.error.calls.count()).toBe(0)
+      makeInstance(new Number(1), Number)
+      expect(console.error.calls.count()).toBe(0)
+      makeInstance(new Boolean(true), Boolean)
+      expect(console.error.calls.count()).toBe(0)
+      /* eslint-enable no-new-wrappers */
+    })
+
     if (hasSymbol) {
       it('symbol', () => {
         makeInstance(Symbol('foo'), Symbol)

From f323719f20d2e2e8f61c60a07080bbfa8b7c0273 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Sep 2017 02:24:08 -0400
Subject: [PATCH 051/911] chore: add line numbers to flow link in compiler
 readme

---
 packages/vue-template-compiler/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index c009ed32dd1..315a4d021ab 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -39,7 +39,7 @@ The optional `options` object can contain the following:
 
 - `modules`
 
-  An array of compiler modules. For details on compiler modules, refer to the `ModuleOptions` type in [flow declarations](https://github.com/vuejs/vue/blob/dev/flow/compiler.js) and the [built-in modules](https://github.com/vuejs/vue/tree/dev/src/platforms/web/compiler/modules).
+  An array of compiler modules. For details on compiler modules, refer to the `ModuleOptions` type in [flow declarations](https://github.com/vuejs/vue/blob/dev/flow/compiler.js#L38-L45) and the [built-in modules](https://github.com/vuejs/vue/tree/dev/src/platforms/web/compiler/modules).
 
 - `directives`
 

From 0f00f8fc2b83b964bb929b729a7c9e3675b52106 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Sep 2017 21:24:51 -0500
Subject: [PATCH 052/911] fix(ssr): better handle v-html hydration

fix #6519
---
 src/core/vdom/patch.js                        | 57 ++++++++++++-------
 .../unit/modules/vdom/patch/hydration.spec.js | 26 +++++++++
 2 files changed, 64 insertions(+), 19 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 9f13f621c50..40a4a0ccb45 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -547,27 +547,46 @@ export function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue)
         } else {
-          let childrenMatch = true
-          let childNode = elm.firstChild
-          for (let i = 0; i < children.length; i++) {
-            if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue)) {
-              childrenMatch = false
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true
+                console.warn('Parent: ', elm)
+                console.warn('server innerHTML: ', i)
+                console.warn('client innerHTML: ', elm.innerHTML)
+              }
+              return false
             }
-            childNode = childNode.nextSibling
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if (process.env.NODE_ENV !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true
-              console.warn('Parent: ', elm)
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children)
+          } else {
+            // iterate and compare children lists
+            let childrenMatch = true
+            let childNode = elm.firstChild
+            for (let i = 0; i < children.length; i++) {
+              if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue)) {
+                childrenMatch = false
+                break
+              }
+              childNode = childNode.nextSibling
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true
+                console.warn('Parent: ', elm)
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children)
+              }
+              return false
             }
-            return false
           }
         }
       }
diff --git a/test/unit/modules/vdom/patch/hydration.spec.js b/test/unit/modules/vdom/patch/hydration.spec.js
index 452dc511381..976ae069847 100644
--- a/test/unit/modules/vdom/patch/hydration.spec.js
+++ b/test/unit/modules/vdom/patch/hydration.spec.js
@@ -297,4 +297,30 @@ describe('vdom patch: hydration', () => {
       done()
     }, 50)
   })
+
+  it('should hydrate v-html with children', () => {
+    const dom = createMockSSRDOM('<span>foo</span>')
+
+    new Vue({
+      data: {
+        html: `<span>foo</span>`
+      },
+      template: `<div v-html="html">hello</div>`
+    }).$mount(dom)
+
+    expect('not matching server-rendered content').not.toHaveBeenWarned()
+  })
+
+  it('should warn mismatching v-html', () => {
+    const dom = createMockSSRDOM('<span>bar</span>')
+
+    new Vue({
+      data: {
+        html: `<span>foo</span>`
+      },
+      template: `<div v-html="html">hello</div>`
+    }).$mount(dom)
+
+    expect('not matching server-rendered content').toHaveBeenWarned()
+  })
 })

From f477ecdbbb1a86ffcf4508ab0f7351277a649a7e Mon Sep 17 00:00:00 2001
From: Josh Soref <jsoref@users.noreply.github.com>
Date: Thu, 7 Sep 2017 07:33:09 -0400
Subject: [PATCH 053/911] chore: spelling (#6535)

---
 benchmarks/dbmon/lib/memory-stats.js                   | 2 +-
 examples/svg/svg.js                                    | 2 +-
 src/core/instance/lifecycle.js                         | 2 +-
 src/platforms/web/runtime/modules/style.js             | 2 +-
 src/platforms/weex/entry-framework.js                  | 2 +-
 src/platforms/weex/util/index.js                       | 2 +-
 src/server/template-renderer/index.js                  | 4 ++--
 test/ssr/compile-with-webpack.js                       | 4 ++--
 test/ssr/ssr-string.spec.js                            | 2 +-
 test/unit/features/component/component-slot.spec.js    | 2 +-
 test/unit/features/directives/model-select.spec.js     | 2 +-
 test/unit/features/directives/on.spec.js               | 6 +++---
 test/unit/features/global-api/use.spec.js              | 2 +-
 test/unit/features/instance/methods-data.spec.js       | 2 +-
 test/unit/features/options/inject.spec.js              | 6 +++---
 test/unit/features/transition/transition-group.spec.js | 2 +-
 test/unit/karma.cover.config.js                        | 2 +-
 test/unit/modules/compiler/codegen.spec.js             | 2 +-
 test/unit/modules/observer/scheduler.spec.js           | 2 +-
 test/unit/modules/vdom/modules/directive.spec.js       | 4 ++--
 20 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/benchmarks/dbmon/lib/memory-stats.js b/benchmarks/dbmon/lib/memory-stats.js
index df75fb307fb..dd7fa5ef16b 100644
--- a/benchmarks/dbmon/lib/memory-stats.js
+++ b/benchmarks/dbmon/lib/memory-stats.js
@@ -59,7 +59,7 @@ var MemoryStats = function (){
 	}
 	
 	// TODO, add a sanity check to see if values are bucketed.
-	// If so, reminde user to adopt the --enable-precise-memory-info flag.
+	// If so, remind user to adopt the --enable-precise-memory-info flag.
 	// open -a "/Applications/Google Chrome.app" --args --enable-precise-memory-info
 
 	var lastTime	= Date.now();
diff --git a/examples/svg/svg.js b/examples/svg/svg.js
index c46a5edef8b..f4491ce3088 100644
--- a/examples/svg/svg.js
+++ b/examples/svg/svg.js
@@ -8,7 +8,7 @@ var stats = [
   { label: 'F', value: 100 }
 ]
 
-// A resusable polygon graph component
+// A reusable polygon graph component
 Vue.component('polygraph', {
   props: ['stats'],
   template: '#polygraph-template',
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 2f923c0792d..768e2e2b54a 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -229,7 +229,7 @@ export function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
   vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject
diff --git a/src/platforms/web/runtime/modules/style.js b/src/platforms/web/runtime/modules/style.js
index ebb16c38831..29e1c3c1e6e 100644
--- a/src/platforms/web/runtime/modules/style.js
+++ b/src/platforms/web/runtime/modules/style.js
@@ -65,7 +65,7 @@ function updateStyle (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   const style = normalizeStyleBinding(vnode.data.style) || {}
 
   // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
+  // make sure to clone it if it's reactive, since the user likely wants
   // to mutate it.
   vnode.data.normalizedStyle = isDef(style.__ob__)
     ? extend({}, style)
diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 303ad36b5f0..90f5f0d81be 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -437,7 +437,7 @@ function callFunction (globalObjects, body) {
  * This function helps speed up bundle compiling. Normally, the V8
  * engine needs to download, parse, and compile a bundle on every
  * visit. If 'compileBundle()' is available on native side,
- * the downloding, parsing, and compiling steps would be skipped.
+ * the downloading, parsing, and compiling steps would be skipped.
  * @param  {object} globalObjects
  * @param  {string} body
  * @return {boolean}
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index a035be3a191..b74949cdd01 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -12,7 +12,7 @@ export const isReservedTag = makeMap(
 )
 
 // Elements that you can, intentionally, leave open (and which close themselves)
-// more flexable than web
+// more flexible than web
 export const canBeLeftOpenTag = makeMap(
   'web,spinner,switch,video,textarea,canvas,' +
   'indicator,marquee,countdown',
diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index dc5052d9f4b..ac549b289d2 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -60,7 +60,7 @@ export default class TemplateRenderer {
     if (options.clientManifest) {
       const clientManifest = this.clientManifest = options.clientManifest
       this.publicPath = clientManifest.publicPath.replace(/\/$/, '')
-      // preload/prefetch drectives
+      // preload/prefetch directives
       this.preloadFiles = clientManifest.initial
       this.prefetchFiles = clientManifest.async
       // initial async chunk mapping
@@ -242,7 +242,7 @@ function getPreloadType (ext: string): string {
   } else if (/woff2?|ttf|otf|eot/.test(ext)) {
     return 'font'
   } else {
-    // not exhausting all possbilities here, but above covers common cases
+    // not exhausting all possibilities here, but above covers common cases
     return ''
   }
 }
diff --git a/test/ssr/compile-with-webpack.js b/test/ssr/compile-with-webpack.js
index 0e8ecc4f78e..765898e966d 100644
--- a/test/ssr/compile-with-webpack.js
+++ b/test/ssr/compile-with-webpack.js
@@ -1,6 +1,6 @@
 import path from 'path'
 import webpack from 'webpack'
-import MemoeryFS from 'memory-fs'
+import MemoryFS from 'memory-fs'
 
 export function compileWithWebpack (file, extraConfig, cb) {
   const config = Object.assign({
@@ -27,7 +27,7 @@ export function compileWithWebpack (file, extraConfig, cb) {
   }, extraConfig)
 
   const compiler = webpack(config)
-  const fs = new MemoeryFS()
+  const fs = new MemoryFS()
   compiler.outputFileSystem = fs
 
   compiler.run((err, stats) => {
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 75de1bbaaef..784b39a4bf2 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -805,7 +805,7 @@ describe('SSR: renderToString', () => {
     expect(vm.a).toBe(func)
   })
 
-  it('should prevent xss in attribtues', done => {
+  it('should prevent xss in attributes', done => {
     renderVmWithOptions({
       data: {
         xss: '"><script>alert(1)</script>'
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 95a771e286c..22e8b2d9ea2 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -661,7 +661,7 @@ describe('Component slot', () => {
     }).then(done)
   })
 
-  // Github issue #5888
+  // GitHub issue #5888
   it('should resolve correctly slot with keep-alive', () => {
     const vm = new Vue({
       template: `
diff --git a/test/unit/features/directives/model-select.spec.js b/test/unit/features/directives/model-select.spec.js
index 629e5a2f440..7c265d25f79 100644
--- a/test/unit/features/directives/model-select.spec.js
+++ b/test/unit/features/directives/model-select.spec.js
@@ -2,7 +2,7 @@ import Vue from 'vue'
 import { looseEqual } from 'shared/util'
 
 // Android 4.4 Chrome 30 has the bug that a multi-select option cannot be
-// deseleted by setting its "selected" prop via JavaScript.
+// deselected by setting its "selected" prop via JavaScript.
 function hasMultiSelectBug () {
   var s = document.createElement('select')
   s.setAttribute('multiple', '')
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index fff8a11d645..f22a47e9ea7 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -497,7 +497,7 @@ describe('Directive v-on', () => {
     }).not.toThrow()
   })
 
-  // Github Issue #5046
+  // GitHub Issue #5046
   it('should support keyboard modifier', () => {
     const spyLeft = jasmine.createSpy()
     const spyRight = jasmine.createSpy()
@@ -570,7 +570,7 @@ describe('Directive v-on', () => {
     })
   }
 
-  // Github Issues #5146
+  // GitHub Issues #5146
   it('should only prevent when match keycode', () => {
     let prevented = false
     vm = new Vue({
@@ -652,7 +652,7 @@ describe('Directive v-on', () => {
     expect(mouseup.calls.count()).toBe(1)
   })
 
-  it('object syntax (usage in HOC, mixed with native listners)', () => {
+  it('object syntax (usage in HOC, mixed with native listeners)', () => {
     const click = jasmine.createSpy('click')
     const mouseup = jasmine.createSpy('mouseup')
     const mousedown = jasmine.createSpy('mousedown')
diff --git a/test/unit/features/global-api/use.spec.js b/test/unit/features/global-api/use.spec.js
index ca8e8f8effc..00053f808a7 100644
--- a/test/unit/features/global-api/use.spec.js
+++ b/test/unit/features/global-api/use.spec.js
@@ -34,7 +34,7 @@ describe('Global API: use', () => {
     expect(Ctor.options.directives['plugin-test']).toBe(def)
   })
 
-  // Github issue #5970
+  // GitHub issue #5970
   it('should work on multi version', () => {
     const Ctor1 = Vue.extend({})
     const Ctor2 = Vue.extend({})
diff --git a/test/unit/features/instance/methods-data.spec.js b/test/unit/features/instance/methods-data.spec.js
index 49e9b6f5009..8684c69eb3a 100644
--- a/test/unit/features/instance/methods-data.spec.js
+++ b/test/unit/features/instance/methods-data.spec.js
@@ -108,7 +108,7 @@ describe('Instance methods data', () => {
       expect(spy).toHaveBeenCalledWith(1)
     })
 
-    it('warn expresssion', () => {
+    it('warn expression', () => {
       vm.$watch('a + b', spy)
       expect('Watcher only accepts simple dot-delimited paths').toHaveBeenWarned()
     })
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index 61111a7d431..3641a56f61c 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -145,7 +145,7 @@ describe('Options provide/inject', () => {
     expect(child.baz).toBe(3)
   })
 
-  // Github issue #5194
+  // GitHub issue #5194
   it('should work with functional', () => {
     new Vue({
       template: `<child/>`,
@@ -187,7 +187,7 @@ describe('Options provide/inject', () => {
     })
   }
 
-  // Github issue #5223
+  // GitHub issue #5223
   it('should work with reactive array', done => {
     const vm = new Vue({
       template: `<div><child></child></div>`,
@@ -362,7 +362,7 @@ describe('Options provide/inject', () => {
     expect(`Injection "baz" not found`).not.toHaveBeenWarned()
   })
 
-  // Github issue #6008
+  // GitHub issue #6008
   it('should merge provide from mixins (objects)', () => {
     const mixinA = { provide: { foo: 'foo' }}
     const mixinB = { provide: { bar: 'bar' }}
diff --git a/test/unit/features/transition/transition-group.spec.js b/test/unit/features/transition/transition-group.spec.js
index 0f40538f5bf..2988d5bff4a 100644
--- a/test/unit/features/transition/transition-group.spec.js
+++ b/test/unit/features/transition/transition-group.spec.js
@@ -294,7 +294,7 @@ if (!isIE9) {
       expect('<transition-group> children must be keyed: <div>').toHaveBeenWarned()
     })
 
-    // Github issue #6006
+    // GitHub issue #6006
     it('should work with dynamic name', done => {
       const vm = new Vue({
         template: `
diff --git a/test/unit/karma.cover.config.js b/test/unit/karma.cover.config.js
index b3e830a4c36..172225bc7ed 100644
--- a/test/unit/karma.cover.config.js
+++ b/test/unit/karma.cover.config.js
@@ -17,7 +17,7 @@ module.exports = function (config) {
     ])
   })
 
-  // add babel-plugin-istanbul for code intrumentation
+  // add babel-plugin-istanbul for code instrumentation
   options.webpack.module.rules[0].options = {
     plugins: [['istanbul', {
       exclude: [
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index f131bc884e9..8189b529279 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -282,7 +282,7 @@ describe('codegen', () => {
     )
   })
 
-  // Github Issues #5146
+  // GitHub Issues #5146
   it('generate events with generic modifiers and keycode correct order', () => {
     assertCodegen(
       '<input @keydown.enter.prevent="onInput">',
diff --git a/test/unit/modules/observer/scheduler.spec.js b/test/unit/modules/observer/scheduler.spec.js
index 7daf31c8bfa..1443375356e 100644
--- a/test/unit/modules/observer/scheduler.spec.js
+++ b/test/unit/modules/observer/scheduler.spec.js
@@ -147,7 +147,7 @@ describe('Scheduler', () => {
     }).then(done)
   })
 
-  // Github issue #5191
+  // GitHub issue #5191
   it('emit should work when updated hook called', done => {
     const el = document.createElement('div')
     const vm = new Vue({
diff --git a/test/unit/modules/vdom/modules/directive.spec.js b/test/unit/modules/vdom/modules/directive.spec.js
index f77d120b8b3..38c53186891 100644
--- a/test/unit/modules/vdom/modules/directive.spec.js
+++ b/test/unit/modules/vdom/modules/directive.spec.js
@@ -14,7 +14,7 @@ describe('vdom directive module', () => {
     const vnode1 = new VNode('div', {}, [
       new VNode('p', {
         directives: [{
-          name: 'directive1', value: 'hello', arg: 'arg1', modifiers: { modifire1: true }
+          name: 'directive1', value: 'hello', arg: 'arg1', modifiers: { modifier1: true }
         }]
       }, undefined, 'hello world', undefined, vm)
     ])
@@ -24,7 +24,7 @@ describe('vdom directive module', () => {
     const vnode2 = new VNode('div', {}, [
       new VNode('p', {
         directives: [{
-          name: 'directive1', value: 'world', arg: 'arg1', modifiers: { modifire1: true }
+          name: 'directive1', value: 'world', arg: 'arg1', modifiers: { modifier1: true }
         }]
       }, undefined, 'hello world', undefined, vm)
     ])

From b77a298cf3d20691a3b32eb8d7f62d2a67a430ae Mon Sep 17 00:00:00 2001
From: Sebastian <vuchl@users.noreply.github.com>
Date: Fri, 8 Sep 2017 15:27:19 +0200
Subject: [PATCH 054/911] chore: fixed typo in changelog section (#6549)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 1539a3a9357..3b7afe184f2 100644
--- a/README.md
+++ b/README.md
@@ -109,7 +109,7 @@ Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/b
 
 ## Changelog
 
-Details changes for each release are documented in the [release notes](https://github.com/vuejs/vue/releases).
+Detailed changes for each release are documented in the [release notes](https://github.com/vuejs/vue/releases).
 
 ## Stay In Touch
 

From e51c0c0e68c53363caaf7f5893460a360b0e6bd7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 9 Sep 2017 13:47:08 -0400
Subject: [PATCH 055/911] chore: update backers

---
 BACKERS.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index fd8d3c91e45..7e820263775 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -105,6 +105,10 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 <a href="https://www.waterfall.com">
   <img width="200px" src="https://waterfall.com/waterfall_logo_large.png">
 </a>
+<br><br>
+<a href="https://vuetifyjs.com">
+  <img width="80px" src="https://vuetifyjs.com/static/doc-images/logo.svg"> Vuetify
+</a>
 
 ---
 
@@ -121,6 +125,7 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 - errorrik
 - Alex Balashov
 - Konstantin Levinski
+- Samuel Smith
 
 ---
 
@@ -288,3 +293,12 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 - Raphaël Saunier
 - Kirk Lewis
 - Nicholas Reid
+- Tyler
+- Yong Jun Thong
+- Jonatan Machado
+- Tai Shi Ling
+- Bryan Gruneberg
+- Matthew McMillion
+- Keith Mancuso
+- Alexander Karelas
+- Matias Verdier

From f956a9914ac5789c33b9e948110f3558a801d737 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Sep 2017 12:02:56 -0400
Subject: [PATCH 056/911] chore: update backers

---
 BACKERS.md | 4 ----
 README.md  | 4 ----
 2 files changed, 8 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 7e820263775..a98bf31736a 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -60,10 +60,6 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
   <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
 </a>
 <br><br>
-<a href="https://famebroker.com" target="_blank">
-  <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/famebroker.png">
-</a>
-<br><br>
 <a href="https://component.io/" target="_blank">
   <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
 </a>
diff --git a/README.md b/README.md
index 3b7afe184f2..e4b8ae33658 100644
--- a/README.md
+++ b/README.md
@@ -66,10 +66,6 @@ Vue.js is an MIT-licensed open source project. Its ongoing development is made p
     <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
   </a>
   <br><br>
-  <a href="https://famebroker.com" target="_blank">
-    <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/famebroker.png">
-  </a>
-  <br><br>
   <a href="https://component.io/" target="_blank">
     <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
   </a>

From aa35ec9adcdb9f173552e244c321244bdd4875b6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Sep 2017 12:30:58 -0400
Subject: [PATCH 057/911] chore: update financial contribution info

---
 .github/CONTRIBUTING.md   | 16 +++++++++++++
 .github/ISSUE_TEMPLATE.md |  6 +++++
 BACKERS.md                | 43 +++++++++++++++++++++++++++++++--
 README.md                 | 50 ++++++++++++++++++++++++++++++++++++---
 4 files changed, 110 insertions(+), 5 deletions(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 4bd77311be5..64d5347242d 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -123,3 +123,19 @@ The default test script will do the following: lint with ESLint -> type check wi
 
   - **`shared`**: contains utilities shared across the entire codebase.
 
+## Financial Contribution
+
+As a pure community-driven project without major corporate backing, we also welcome financial contributions via Patreon or OpenCollective.
+
+- [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou)
+- [Become a backer or sponsor on OpenCollective](https://opencollective.com/vuejs)
+
+### What's the difference between Patreon and OpenCollective?
+
+Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
+
+## Credits
+
+Thank you to all the people who have already contributed to vuejs!
+
+<a href="graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
index 3a9c0b2e35f..cb7f961992c 100644
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -8,3 +8,9 @@ If your issue was not created using the app above, it will be closed immediately
 中文用户请注意：
 请使用上面的链接来创建新的 issue。如果不是用上述工具创建的 issue 会被自动关闭。
 -->
+
+<!--
+Love vuejs? Please consider supporting us via Patreon or OpenCollective:
+👉  https://www.patreon.com/evanyou
+👉  https://opencollective.com/vuejs/donate
+-->
diff --git a/BACKERS.md b/BACKERS.md
index a98bf31736a..630a1dad379 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -70,6 +70,41 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 
 ---
 
+### Sponsors via [OpenCollective](https://opencollective.com/vuejs#sponsor)
+
+<a href="https://opencollective.com/vuejs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/6/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/7/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/16/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/17/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/18/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/19/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/20/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/21/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/22/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/29/avatar.svg"></a>
+
+---
+
 ### $250
 
 - Matt Mullenweg
@@ -108,7 +143,7 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 
 ---
 
-### $50+
+### $50+ via Patreon
 
 - No Divide Studio
 - James Kyle
@@ -125,7 +160,7 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 
 ---
 
-### $10+
+### $10+ via Patreon
 
 - Sylvain Pollet-Villard
 - Luca Borghini
@@ -298,3 +333,7 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 - Keith Mancuso
 - Alexander Karelas
 - Matias Verdier
+
+## Backers via [OpenCollective](https://opencollective.com/vuejs#backer)
+
+<a href="https://opencollective.com/vuejs#backers" target="_blank"><img src="https://opencollective.com/vuejs/backers.svg?width=890"></a>
diff --git a/README.md b/README.md
index e4b8ae33658..6021e0ac811 100644
--- a/README.md
+++ b/README.md
@@ -13,11 +13,18 @@
 
 ## Supporting Vue.js
 
-Vue.js is an MIT-licensed open source project. Its ongoing development is made possible thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, check out [Vue.js' Patreon campaign](https://www.patreon.com/evanyou).
+Vue.js is an MIT-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
+
+- [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou).
+- [Become a backer or sponsor on OpenCollective](https://opencollective.com/vuejs).
+
+#### What's the difference between Patreon and OpenCollective?
+
+Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
+
+### Sponsors via Patreon
 
 <p align="center">
-  <b>Special thanks to the generous sponsorship by:</b>
-  <br><br>
   <a href="https://stdlib.com">
     <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
@@ -75,6 +82,39 @@ Vue.js is an MIT-licensed open source project. Its ongoing development is made p
   </a>
 </p>
 
+### Sponsors via OpenCollective
+
+<a href="https://opencollective.com/vuejs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/6/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/7/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/16/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/17/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/18/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/19/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/20/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/21/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/22/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/sponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/29/avatar.svg"></a>
+
 ## Intro
 
 Vue.js is a library for building interactive web interfaces. It provides data-reactive components with a simple and flexible API. Core features include:
@@ -103,6 +143,10 @@ Please make sure to read the [Issue Reporting Checklist](https://github.com/vuej
 
 Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md) before making a pull request. If you have a Vue-related project/component/tool, add it with a pull-request to [this curated list](https://github.com/vuejs/awesome-vue)!
 
+Thank you to all the people who already contributed to Vue!
+
+<a href="graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
+
 ## Changelog
 
 Detailed changes for each release are documented in the [release notes](https://github.com/vuejs/vue/releases).

From 949ec34cf72517285b197e63d5af511a75c970d0 Mon Sep 17 00:00:00 2001
From: ULIVZ <472590061@qq.com>
Date: Tue, 12 Sep 2017 01:12:39 +0800
Subject: [PATCH 058/911] chore: correct the contributor link (#6571)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6021e0ac811..6c69c27177e 100644
--- a/README.md
+++ b/README.md
@@ -145,7 +145,7 @@ Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/b
 
 Thank you to all the people who already contributed to Vue!
 
-<a href="graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
+<a href="https://github.com/vuejs/vue/graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
 
 ## Changelog
 

From 76182a2645ac81535179c926f3192b6762d514f0 Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Mon, 11 Sep 2017 12:13:37 -0500
Subject: [PATCH 059/911] chore: remove always falsy condition on perf (#6547)

---
 benchmarks/dbmon/lib/memory-stats.js | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/benchmarks/dbmon/lib/memory-stats.js b/benchmarks/dbmon/lib/memory-stats.js
index dd7fa5ef16b..03272d897c0 100644
--- a/benchmarks/dbmon/lib/memory-stats.js
+++ b/benchmarks/dbmon/lib/memory-stats.js
@@ -46,10 +46,7 @@ var MemoryStats = function (){
 
 	var perf = window.performance || {};
 	// polyfill usedJSHeapSize
-	if (!perf && !perf.memory){
-		perf.memory = { usedJSHeapSize : 0 };
-	}
-	if (perf && !perf.memory){
+	if (!perf.memory){
 		perf.memory = { usedJSHeapSize : 0 };
 	}
 
@@ -57,7 +54,7 @@ var MemoryStats = function (){
 	if( perf.memory.totalJSHeapSize === 0 ){
 		console.warn('totalJSHeapSize === 0... performance.memory is only available in Chrome .')
 	}
-	
+
 	// TODO, add a sanity check to see if values are bucketed.
 	// If so, remind user to adopt the --enable-precise-memory-info flag.
 	// open -a "/Applications/Google Chrome.app" --args --enable-precise-memory-info
@@ -76,16 +73,16 @@ var MemoryStats = function (){
 			var delta	= perf.memory.usedJSHeapSize - lastUsedHeap;
 			lastUsedHeap	= perf.memory.usedJSHeapSize;
 			var color	= delta < 0 ? '#830' : '#131';
-			
+
 			var ms	= perf.memory.usedJSHeapSize;
 			msMin	= Math.min( msMin, ms );
 			msMax	= Math.max( msMax, ms );
 			msText.textContent = "Mem: " + bytesToSize(ms, 2);
-			
+
 			var normValue	= ms / (30*1024*1024);
 			var height	= Math.min( 30, 30 - normValue * 30 );
 			updateGraph( msGraph, height, color);
-			
+
 			function bytesToSize( bytes, nFractDigit ){
 				var sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
 				if (bytes == 0) return 'n/a';
@@ -97,5 +94,5 @@ var MemoryStats = function (){
 		}
 
 	}
-	
-};
\ No newline at end of file
+
+};

From 88487dbaf3af2e3c8c28ce7015dffc07df2128c1 Mon Sep 17 00:00:00 2001
From: ULIVZ <472590061@qq.com>
Date: Tue, 12 Sep 2017 01:16:34 +0800
Subject: [PATCH 060/911] build: refactor build alias (#6570)

---
 build/alias.js | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/build/alias.js b/build/alias.js
index 133e6505b5b..30a27b59c19 100644
--- a/build/alias.js
+++ b/build/alias.js
@@ -1,13 +1,15 @@
 const path = require('path')
 
+const resolve = p => path.resolve(__dirname, '../', p)
+
 module.exports = {
-  vue: path.resolve(__dirname, '../src/platforms/web/entry-runtime-with-compiler'),
-  compiler: path.resolve(__dirname, '../src/compiler'),
-  core: path.resolve(__dirname, '../src/core'),
-  shared: path.resolve(__dirname, '../src/shared'),
-  web: path.resolve(__dirname, '../src/platforms/web'),
-  weex: path.resolve(__dirname, '../src/platforms/weex'),
-  server: path.resolve(__dirname, '../src/server'),
-  entries: path.resolve(__dirname, '../src/entries'),
-  sfc: path.resolve(__dirname, '../src/sfc')
+  vue: resolve('src/platforms/web/entry-runtime-with-compiler'),
+  compiler: resolve('src/compiler'),
+  core: resolve('src/core'),
+  shared: resolve('src/shared'),
+  web: resolve('src/platforms/web'),
+  weex: resolve('src/platforms/weex'),
+  server: resolve('src/server'),
+  entries: resolve('src/entries'),
+  sfc: resolve('src/sfc')
 }

From 1a19c418b1e71f39d2095d60de59fcd650719523 Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Tue, 12 Sep 2017 08:10:18 -0500
Subject: [PATCH 061/911] chore(docs): update packages readme links which point
 to 404 (#6577)

---
 packages/vue-server-renderer/README.md    | 2 +-
 packages/vue-template-compiler/README.md  | 2 +-
 packages/weex-template-compiler/README.md | 2 +-
 packages/weex-vue-framework/README.md     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/vue-server-renderer/README.md b/packages/vue-server-renderer/README.md
index cf7ab7c20c6..2921c51eadc 100644
--- a/packages/vue-server-renderer/README.md
+++ b/packages/vue-server-renderer/README.md
@@ -1,6 +1,6 @@
 # vue-server-renderer
 
-> This package is auto-generated. For pull requests please see [src/entries/web-server-renderer.js](https://github.com/vuejs/vue/blob/dev/src/platforms/web/server-renderer.js).
+> This package is auto-generated. For pull requests please see [src/platforms/web/entry-server-renderer.js](https://github.com/vuejs/vue/blob/dev/src/platforms/web/entry-server-renderer.js).
 
 This package offers Node.js server-side rendering for Vue 2.0.
 
diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index 315a4d021ab..e12c289102e 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -1,6 +1,6 @@
 # vue-template-compiler
 
-> This package is auto-generated. For pull requests please see [src/entries/web-compiler.js](https://github.com/vuejs/vue/tree/dev/src/platforms/web/compiler).
+> This package is auto-generated. For pull requests please see [src/platforms/web/entry-compiler.js](https://github.com/vuejs/vue/tree/dev/src/platforms/web/entry-compiler.js).
 
 This package can be used to pre-compile Vue 2.0 templates into render functions to avoid runtime-compilation overhead and CSP restrictions. You will only need it if you are writing build tools with very specific needs. In most cases you should be using [vue-loader](https://github.com/vuejs/vue-loader) or [vueify](https://github.com/vuejs/vueify) instead, both of which use this package internally.
 
diff --git a/packages/weex-template-compiler/README.md b/packages/weex-template-compiler/README.md
index 3ce2410458e..6ebca962fcc 100644
--- a/packages/weex-template-compiler/README.md
+++ b/packages/weex-template-compiler/README.md
@@ -1,3 +1,3 @@
 # weex-template-compiler
 
-> This package is auto-generated. For pull requests please see [src/entries/weex-compiler.js](https://github.com/vuejs/vue/tree/dev/src/platforms/weex/compiler).
+> This package is auto-generated. For pull requests please see [src/platforms/weex/entry-compiler.js](https://github.com/vuejs/vue/tree/dev/src/platforms/weex/entry-compiler.js).
diff --git a/packages/weex-vue-framework/README.md b/packages/weex-vue-framework/README.md
index 90d0b1aa2f9..9f3183185a6 100644
--- a/packages/weex-vue-framework/README.md
+++ b/packages/weex-vue-framework/README.md
@@ -1,3 +1,3 @@
 # weex-vue-framework
 
-> This package is auto-generated. For pull requests please see [src/entries/weex-framework.js](https://github.com/vuejs/vue/blob/dev/src/platforms/weex/framework.js).
+> This package is auto-generated. For pull requests please see [src/platforms/weex/entry-framework.js](https://github.com/vuejs/vue/blob/dev/src/platforms/weex/entry-framework.js).

From 3f42562de766a90f35ffa9a9efd1234814ad390c Mon Sep 17 00:00:00 2001
From: samayo <samayo@protonmail.ch>
Date: Tue, 12 Sep 2017 15:10:39 +0200
Subject: [PATCH 062/911] chore: fix comment typo (#6573)

correct "a input" to "an input"
---
 dist/vue.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dist/vue.js b/dist/vue.js
index 4df3d8d5404..5f60f4c2cc2 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -83,7 +83,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {

From 95e4e707d2e7120586ff30d16e0c7cf7faf400bc Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Tue, 12 Sep 2017 08:11:21 -0500
Subject: [PATCH 063/911] refactor: remove ternary operator because key is
 always true (#6576)

Signed-off-by: Clark Du <clark.duxin@gmail.com>
---
 src/compiler/codegen/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index c1d35e3953d..46c54867bbb 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -113,7 +113,7 @@ function genOnce (el: ASTElement, state: CodegenState): string {
       )
       return genElement(el, state)
     }
-    return `_o(${genElement(el, state)},${state.onceId++}${key ? `,${key}` : ``})`
+    return `_o(${genElement(el, state)},${state.onceId++},${key})`
   } else {
     return genStatic(el, state)
   }

From 0b8257365a4c34bb9845d3bd2a1d8ac1ffc949c4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Sep 2017 14:07:19 -0400
Subject: [PATCH 064/911] chore: update open collective sponsors with all tiers

---
 README.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/README.md b/README.md
index 6c69c27177e..8e1871d2705 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,20 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 ### Sponsors via OpenCollective
 
+#### Platinum
+
+<a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
+
+#### Gold
+
+<a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
+
+#### Silver
+
+<a href="https://opencollective.com/vuejs/silversponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/0/avatar.svg"></a>
+
+#### Bronze
+
 <a href="https://opencollective.com/vuejs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/sponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/sponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/2/avatar.svg"></a>

From a977740816d131d6490ec73e3df2444f51841c42 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Sep 2017 14:18:23 -0400
Subject: [PATCH 065/911] chore: update backers.md for tiered open collective
 sponsors

---
 BACKERS.md | 183 +++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 129 insertions(+), 54 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 630a1dad379..c63454b64d7 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -1,19 +1,35 @@
 # Backers
 
-You can join them in supporting  Vue.js development by [pledging on Patreon](https://www.patreon.com/evanyou)! Backers in the same pledge level appear in the order of pledge date.
+Vue.js is an MIT-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
+
+- [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou).
+- [Become a backer or sponsor on OpenCollective](https://opencollective.com/vuejs).
+
+#### What's the difference between Patreon and OpenCollective?
+
+Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
+
+---
 
 ### $2000
 
 <a href="https://stdlib.com/">
-  <img width="600px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+  <img width="300px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
 </a>
 
+<a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/5/avatar.svg"></a>
+
 ---
 
 ### $1000
 
 <a href="https://xiaozhuanlan.com">
-  <img width="400px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+  <img width="200px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
 </a>
 
 ---
@@ -21,57 +37,154 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 ### $500
 
 <a href="https://deepstreamhub.com">
-  <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
+  <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
 </a>
 <br><br>
 <a href="https://jsfiddle.net/">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
 </a>
 <br><br>
 <a href="https://laravel.com">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
 </a>
 <br><br>
 <a href="https://chaitin.cn">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
 </a>
 <br><br>
 <a href="https://htmlburger.com/">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
 </a>
 <br><br>
 <a href="https://starter.someline.com/">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
 </a>
 <br><br>
 <a href="http://monterail.com/" target="_blank">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
 </a>
 <br><br>
 <a href="https://www.2mhost.com/" target="_blank">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
 </a>
 <br><br>
 <a href="https://vuejsjob.com/?ref=vuejs" target="_blank">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
 </a>
 <br><br>
 <a href="https://leanpub.com/vuejs2" target="_blank">
-  <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
+  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
 </a>
 <br><br>
 <a href="https://component.io/" target="_blank">
-  <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
+  <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
 </a>
 <br><br>
 <a href="https://www.v2ex.com/t/379389" target="_blank">
-  <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
+  <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
 </a>
+<br><br>
+
+<a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
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+<a href="https://opencollective.com/vuejs/goldsponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/15/avatar.svg"></a>
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+<a href="https://opencollective.com/vuejs/goldsponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/29/avatar.svg"></a>
 
 ---
 
-### Sponsors via [OpenCollective](https://opencollective.com/vuejs#sponsor)
+### $250
+
+- Matt Mullenweg
+
+<a href="https://opencollective.com/vuejs/silversponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/6/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/7/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/16/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/17/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/18/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/19/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/20/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/21/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/22/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/silversponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/29/avatar.svg"></a>
+
+---
+
+### $100
 
+<a href="http://tighten.co/">
+  <img width="140px" src="http://i.imgur.com/T7fQYLT.png">
+</a>
+&nbsp;&nbsp;
+<a href="http://invoicemachine.com/">
+  <img width="140px" src="http://assets.invoicemachine.com/images/flat_logo.png">
+</a>
+&nbsp;&nbsp;
+<a href="https://alligator.io">
+  <img width="140px" src="https://alligator.io/images/alligator-logo.svg">
+</a>
+&nbsp;&nbsp;
+<a href="https://monei.net/">
+  <img width="90px" src="http://i.imgur.com/JUSjHAi.png">
+</a>
+&nbsp;&nbsp;
+<a href="https://www.accelebrate.com/">
+  <img width="120pxpx" src="https://www.accelebrate.com/assets/images/accelebrate_logo@2x.png">
+</a>
+&nbsp;&nbsp;
+<a href="https://www.waterfall.com">
+  <img width="100px" src="https://waterfall.com/waterfall_logo_large.png">
+</a>
+&nbsp;&nbsp;<br>
+<a href="https://vuetifyjs.com">
+  <img width="40px" src="https://vuetifyjs.com/static/doc-images/logo.svg"> Vuetify
+</a>
+<br><br>
 <a href="https://opencollective.com/vuejs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/sponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/sponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/2/avatar.svg"></a>
@@ -105,44 +218,6 @@ You can join them in supporting  Vue.js development by [pledging on Patreon](htt
 
 ---
 
-### $250
-
-- Matt Mullenweg
-
----
-
-### $100
-
-<a href="http://tighten.co/">
-  <img width="240px" src="http://i.imgur.com/T7fQYLT.png">
-</a>
-<br><br>
-<a href="http://invoicemachine.com/">
-  <img width="220px" src="http://assets.invoicemachine.com/images/flat_logo.png">
-</a>
-<br><br>
-<a href="https://alligator.io">
-  <img width="240px" src="https://alligator.io/images/alligator-logo.svg">
-</a>
-<br><br>
-<a href="https://monei.net/">
-  <img width="200px" src="http://i.imgur.com/JUSjHAi.png">
-</a>
-<br><br>
-<a href="https://www.accelebrate.com/">
-  <img width="220px" src="https://www.accelebrate.com/assets/images/accelebrate_logo@2x.png">
-</a>
-<br><br>
-<a href="https://www.waterfall.com">
-  <img width="200px" src="https://waterfall.com/waterfall_logo_large.png">
-</a>
-<br><br>
-<a href="https://vuetifyjs.com">
-  <img width="80px" src="https://vuetifyjs.com/static/doc-images/logo.svg"> Vuetify
-</a>
-
----
-
 ### $50+ via Patreon
 
 - No Divide Studio

From 6f312d636c3d6049dc9e60007f88ea871b8e8173 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Sep 2017 19:29:34 -0400
Subject: [PATCH 066/911] fix(v-model): fix input listener with modifier
 blocking v-model update

fix #6552
---
 src/core/vdom/helpers/update-listeners.js     | 24 +++++++-
 .../features/directives/model-text.spec.js    | 61 +++++++++++++++++++
 2 files changed, 83 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index d587eecf38a..be44c6a0a22 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -5,9 +5,11 @@ import { cached, isUndef } from 'shared/util'
 
 const normalizeEvent = cached((name: string): {
   name: string,
+  plain: boolean,
   once: boolean,
   capture: boolean,
-  passive: boolean
+  passive: boolean,
+  handler?: Function
 } => {
   const passive = name.charAt(0) === '&'
   name = passive ? name.slice(1) : name
@@ -15,8 +17,10 @@ const normalizeEvent = cached((name: string): {
   name = once ? name.slice(1) : name
   const capture = name.charAt(0) === '!'
   name = capture ? name.slice(1) : name
+  const plain = !(passive || once || capture)
   return {
     name,
+    plain,
     once,
     capture,
     passive
@@ -40,6 +44,11 @@ export function createFnInvoker (fns: Function | Array<Function>): Function {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 export function updateListeners (
   on: Object,
   oldOn: Object,
@@ -48,10 +57,13 @@ export function updateListeners (
   vm: Component
 ) {
   let name, cur, old, event
+  const toAdd = []
+  let hasModifier = false
   for (name in on) {
     cur = on[name]
     old = oldOn[name]
     event = normalizeEvent(name)
+    if (!event.plain) hasModifier = true
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         `Invalid handler for event "${event.name}": got ` + String(cur),
@@ -61,12 +73,20 @@ export function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur)
       }
-      add(event.name, cur, event.once, event.capture, event.passive)
+      event.handler = cur
+      toAdd.push(event)
     } else if (cur !== old) {
       old.fns = cur
       on[name] = old
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) toAdd.sort(prioritizePlainEvents)
+    for (let i = 0; i < toAdd.length; i++) {
+      const event = toAdd[i]
+      add(event.name, event.handler, event.once, event.capture, event.passive)
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name)
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index af7cd5d6135..7032574ff56 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -293,5 +293,66 @@ describe('Directive v-model text', () => {
       triggerEvent(vm.$el, 'compositionend')
       expect(spy.calls.count()).toBe(2)
     })
+
+    // #4392
+    it('should not update value with modifiers when in focus if post-conversion values are the same', done => {
+      const vm = new Vue({
+        data: {
+          a: 1,
+          foo: false
+        },
+        template: '<div>{{ foo }}<input ref="input" v-model.number="a"></div>'
+      }).$mount()
+
+      document.body.appendChild(vm.$el)
+      vm.$refs.input.focus()
+      vm.$refs.input.value = '1.000'
+      vm.foo = true
+
+      waitForUpdate(() => {
+        expect(vm.$refs.input.value).toBe('1.000')
+      }).then(done)
+    })
+
+    // #6552
+    // Root cause: input listeners with modifiers are added as a separate
+    // DOM listener. If a change is triggered inside this listener, an update
+    // will happen before the second listener is fired! (obviously microtasks
+    // can be processed in between DOM events on the same element)
+    // This causes the domProps module to receive state that has not been
+    // updated by v-model yet (because v-model's listener has not fired yet)
+    // Solution: make sure to always fire v-model's listener first
+    it('should not block input when another input listener with modifier is used', done => {
+      const vm = new Vue({
+        data: {
+          a: 'a',
+          foo: false
+        },
+        template: `
+          <div>
+            <input ref="input" v-model="a" @input.capture="onInput">{{ a }}
+            <div v-if="foo">foo</div>
+          </div>
+        `,
+        methods: {
+          onInput (e) {
+            this.foo = true
+          }
+        }
+      }).$mount()
+
+      document.body.appendChild(vm.$el)
+      vm.$refs.input.focus()
+      vm.$refs.input.value = 'b'
+      triggerEvent(vm.$refs.input, 'input')
+
+      // not using wait for update here because there will be two update cycles
+      // one caused by onInput in the first listener
+      setTimeout(() => {
+        expect(vm.a).toBe('b')
+        expect(vm.$refs.input.value).toBe('b')
+        done()
+      }, 16)
+    })
   }
 })

From 844a540c647dfa93dc714540953524830dd3475a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Sep 2017 19:56:18 -0400
Subject: [PATCH 067/911] fix: do not use MutationObserver in IE11

MutationObserver is unreliable in IE11. fix #6466
---
 src/core/util/env.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index 04f43256294..5609a247848 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -99,13 +99,13 @@ export const nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) setTimeout(noop)
     }
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1
     var observer = new MutationObserver(nextTickHandler)
     var textNode = document.createTextNode(String(counter))

From 684cd7d21aa7cb9a40fb4a8542c4e08fb3801a86 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Sep 2017 21:45:44 -0400
Subject: [PATCH 068/911] fix: preserve slot attribute if not resolved by Vue

close #6553
---
 src/compiler/parser/index.js                        |  2 ++
 src/core/instance/render-helpers/resolve-slots.js   |  7 ++++++-
 test/unit/features/component/component-slot.spec.js | 11 +++++++++++
 test/unit/modules/compiler/codegen.spec.js          |  2 +-
 4 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index e91bc855b98..eb7fed80d02 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -431,6 +431,8 @@ function processSlot (el) {
     const slotTarget = getBindingAttr(el, 'slot')
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget)
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope')
diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 6fe2803040c..26ed51d742a 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -14,10 +14,15 @@ export function resolveSlots (
   const defaultSlot = []
   for (let i = 0, l = children.length; i < l; i++) {
     const child = children[i]
+    const data = child.data
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       const name = child.data.slot
       const slot = (slots[name] || (slots[name] = []))
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 22e8b2d9ea2..66e70dac17b 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -728,4 +728,15 @@ describe('Component slot', () => {
       expect(vm.$el.innerHTML).toBe(`<i><div><div>foo</div></div><div>bar</div></i>`)
     }).then(done)
   })
+
+  it('should preserve slot attribute if not absorbed by a Vue component', () => {
+    const vm = new Vue({
+      template: `
+        <div>
+          <div slot="foo"></div>
+        </div>
+      `
+    }).$mount()
+    expect(vm.$el.children[0].getAttribute('slot')).toBe('foo')
+  })
 })
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 8189b529279..37bcf62a762 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -175,7 +175,7 @@ describe('codegen', () => {
   it('generate slot target', () => {
     assertCodegen(
       '<p slot="one">hello world</p>',
-      `with(this){return _c('p',{slot:"one"},[_v("hello world")])}`
+      `with(this){return _c('p',{attrs:{"slot":"one"},slot:"one"},[_v("hello world")])}`
     )
   })
 

From 7116af4e07520040ed7328c39d0a456808bfe1e1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Sep 2017 22:06:07 -0400
Subject: [PATCH 069/911] fix: set value as domProp for <progress>

fix #6561
---
 src/platforms/web/util/attrs.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/platforms/web/util/attrs.js b/src/platforms/web/util/attrs.js
index 1758b4708b5..59517da9add 100644
--- a/src/platforms/web/util/attrs.js
+++ b/src/platforms/web/util/attrs.js
@@ -7,7 +7,7 @@ import { makeMap } from 'shared/util'
 export const isReservedAttr = makeMap('style,class')
 
 // attributes that should be using props for binding
-const acceptValue = makeMap('input,textarea,option,select')
+const acceptValue = makeMap('input,textarea,option,select,progress')
 export const mustUseProp = (tag: string, type: ?string, attr: string): boolean => {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||

From 09106f066a1ba71431e4f9f26246aaf619153e2e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Sep 2017 23:23:24 -0400
Subject: [PATCH 070/911] fix(ssr): handle v-text/v-html with non-string value

fix #6572
---
 src/server/optimizing-compiler/codegen.js |  4 ++--
 test/ssr/ssr-string.spec.js               | 24 +++++++++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/server/optimizing-compiler/codegen.js b/src/server/optimizing-compiler/codegen.js
index f494f8fad0a..dfc4477d915 100644
--- a/src/server/optimizing-compiler/codegen.js
+++ b/src/server/optimizing-compiler/codegen.js
@@ -200,10 +200,10 @@ function elementToOpenTagSegments (el, state): Array<StringSegment> {
 function childrenToSegments (el, state): Array<StringSegment> {
   let binding
   if ((binding = el.attrsMap['v-html'])) {
-    return [{ type: EXPRESSION, value: binding }]
+    return [{ type: EXPRESSION, value: `_s(${binding})` }]
   }
   if ((binding = el.attrsMap['v-text'])) {
-    return [{ type: INTERPOLATION, value: binding }]
+    return [{ type: INTERPOLATION, value: `_s(${binding})` }]
   }
   return el.children
     ? nodesToSegments(el.children, state)
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 784b39a4bf2..3f0cc92f6ad 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -374,6 +374,18 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('v-html with null value', done => {
+    renderVmWithOptions({
+      template: '<div><div v-html="text"></div></div>',
+      data: {
+        text: null
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true"><div></div></div>')
+      done()
+    })
+  })
+
   it('v-text', done => {
     renderVmWithOptions({
       template: '<div><div v-text="text"></div></div>',
@@ -386,6 +398,18 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('v-text with null value', done => {
+    renderVmWithOptions({
+      template: '<div><div v-text="text"></div></div>',
+      data: {
+        text: null
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true"><div></div></div>')
+      done()
+    })
+  })
+
   it('child component (hoc)', done => {
     renderVmWithOptions({
       template: '<child class="foo" :msg="msg"></child>',

From 1f52a2a9f433452c15715131ed74433a43d5cfb7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 00:32:07 -0400
Subject: [PATCH 071/911] fix(ssr): expose context.styles when no lifecycle
 styles are injected

fix #6353
---
 .../bundle-renderer/create-bundle-runner.js    | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/server/bundle-renderer/create-bundle-runner.js b/src/server/bundle-renderer/create-bundle-runner.js
index b0cec881965..b5594a8b2a0 100644
--- a/src/server/bundle-renderer/create-bundle-runner.js
+++ b/src/server/bundle-renderer/create-bundle-runner.js
@@ -130,7 +130,23 @@ export function createBundleRunner (entry, files, basedir, runInNewContext) {
       if (initialContext._styles) {
         userContext._styles = deepClone(initialContext._styles)
       }
-      resolve(runner(userContext))
+      // #6353 after the app is resolved, if the userContext doesn't have a
+      // styles property, it means the app doesn't have any lifecycle-injected
+      // styles, so vue-style-loader never defined the styles getter.
+      // just expose the same styles from the initialContext.
+      const exposeStylesAndResolve = app => {
+        if (!userContext.hasOwnProperty('styles')) {
+          userContext.styles = initialContext.styles
+        }
+        resolve(app)
+      }
+
+      const res = runner(userContext)
+      if (typeof res.then === 'function') {
+        res.then(exposeStylesAndResolve)
+      } else {
+        exposeStylesAndResolve(res)
+      }
     })
   }
 }

From 3ee62fd59e20030dd63c08c2390e803d034928fe Mon Sep 17 00:00:00 2001
From: Elevista <sunnyholic@sunnyholic.com>
Date: Wed, 13 Sep 2017 14:05:11 +0900
Subject: [PATCH 072/911] fix(inject): exclude not enumerable keys of inject
 object (#6346)

close #6574
---
 src/core/instance/inject.js               |  4 +++-
 test/unit/features/options/inject.spec.js | 10 +++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index 0afd3c81ffc..ecb3e0846a9 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -41,7 +41,9 @@ export function resolveInject (inject: any, vm: Component): ?Object {
     // inject is :any because flow is not smart enough to figure out cached
     const result = Object.create(null)
     const keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(key => {
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject)
 
     for (let i = 0; i < keys.length; i++) {
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index 3641a56f61c..86e3ada5736 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -362,7 +362,15 @@ describe('Options provide/inject', () => {
     expect(`Injection "baz" not found`).not.toHaveBeenWarned()
   })
 
-  // GitHub issue #6008
+  it('should not warn when injection key which is not provided is not enumerable', () => {
+    const parent = new Vue({ provide: { foo: 1 }})
+    const inject = { foo: 'foo' }
+    Object.defineProperty(inject, '__ob__', { enumerable: false, value: '__ob__' })
+    new Vue({ parent, inject })
+    expect(`Injection "__ob__" not found`).not.toHaveBeenWarned()
+  })
+
+  // Github issue #6008
   it('should merge provide from mixins (objects)', () => {
     const mixinA = { provide: { foo: 'foo' }}
     const mixinB = { provide: { bar: 'bar' }}

From aa820cba37b69772868c9cdb69235c424e23f529 Mon Sep 17 00:00:00 2001
From: fenduru <fenduru@users.noreply.github.com>
Date: Wed, 13 Sep 2017 02:24:49 -0400
Subject: [PATCH 073/911] perf(core): prevent iteration of arrays that should
 not be observable (#6467)

close #6284
---
 src/core/observer/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 9317dbbc47b..3dc10522dab 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -157,7 +157,7 @@ export function defineReactive (
         if (childOb) {
           childOb.dep.depend()
         }
-        if (Array.isArray(value)) {
+        if (Array.isArray(value) && Object.isExtensible(value)) {
           dependArray(value)
         }
       }

From 1baa0a7884cfa147df7623a34ee277f7d39c7a21 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Wed, 13 Sep 2017 15:25:50 +0900
Subject: [PATCH 074/911] fix(types): add `inject` option in functional
 component options type (#6530)

---
 types/options.d.ts         | 3 ++-
 types/test/options-test.ts | 9 +++++++++
 types/test/tsconfig.json   | 4 +---
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 0de8e8f7de5..b28a228a6c8 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -47,7 +47,7 @@ export interface ComponentOptions<V extends Vue> {
   filters?: { [key: string]: Function };
 
   provide?: Object | (() => Object);
-  inject?: { [key: string]: string | symbol } | Array<string>;
+  inject?: { [key: string]: string | symbol } | string[];
 
   model?: {
     prop?: string;
@@ -66,6 +66,7 @@ export interface ComponentOptions<V extends Vue> {
 export interface FunctionalComponentOptions {
   name?: string;
   props?: string[] | { [key: string]: PropOptions | Constructor | Constructor[] };
+  inject?: { [key: string]: string | symbol } | string[];
   functional: boolean;
   render(this: never, createElement: CreateElement, context: RenderContext): VNode | void;
 }
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 3f17b071a33..cbd5be1423f 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -196,6 +196,7 @@ Vue.component('component-with-scoped-slot', {
 Vue.component('functional-component', {
   props: ['prop'],
   functional: true,
+  inject: ['foo'],
   render(createElement, context) {
     context.props;
     context.children;
@@ -206,6 +207,14 @@ Vue.component('functional-component', {
   }
 } as FunctionalComponentOptions);
 
+Vue.component('functional-component-object-inject', {
+  functional: true,
+  inject: {
+    foo: 'bar',
+    baz: Symbol()
+  }
+})
+
 Vue.component("async-component", ((resolve, reject) => {
   setTimeout(() => {
     resolve(Vue.component("component"));
diff --git a/types/test/tsconfig.json b/types/test/tsconfig.json
index 68aca8c1f1e..cbc565a7c53 100644
--- a/types/test/tsconfig.json
+++ b/types/test/tsconfig.json
@@ -2,10 +2,8 @@
   "compilerOptions": {
     "target": "es5",
     "lib": [
-      "es5",
       "dom",
-      "es2015.promise",
-      "es2015.core"
+      "es2015"
     ],
     "module": "commonjs",
     "noImplicitAny": true,

From 1c86b9ebebebc15ff9ef4ababa64194ef9c349a2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 02:30:51 -0400
Subject: [PATCH 075/911] chore: ignore code that cannot be reached in
 PhantomJS

---
 src/core/instance/inject.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index ecb3e0846a9..98887c48609 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -42,6 +42,7 @@ export function resolveInject (inject: any, vm: Component): ?Object {
     const result = Object.create(null)
     const keys = hasSymbol
         ? Reflect.ownKeys(inject).filter(key => {
+          /* istanbul ignore next */
           return Object.getOwnPropertyDescriptor(inject, key).enumerable
         })
         : Object.keys(inject)

From fa6a7290e3b8cb62fb7f999389f476617b56503e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 03:08:22 -0400
Subject: [PATCH 076/911] fix: $off should ignore undefined handler argument

fix #6591
---
 src/core/instance/events.js | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index a81f2b7e3a1..7908041a83b 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -95,14 +95,16 @@ export function eventsMixin (Vue: Class<Component>) {
       vm._events[event] = null
       return vm
     }
-    // specific handler
-    let cb
-    let i = cbs.length
-    while (i--) {
-      cb = cbs[i]
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1)
-        break
+    if (fn) {
+      // specific handler
+      let cb
+      let i = cbs.length
+      while (i--) {
+        cb = cbs[i]
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i, 1)
+          break
+        }
       }
     }
     return vm

From c8564abd624d4be405fe220c3b8769d56ca14a29 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 03:29:35 -0400
Subject: [PATCH 077/911] refactor: tweak dependArray change

---
 src/core/observer/index.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 3dc10522dab..7fc8a633cda 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -156,9 +156,9 @@ export function defineReactive (
         dep.depend()
         if (childOb) {
           childOb.dep.depend()
-        }
-        if (Array.isArray(value) && Object.isExtensible(value)) {
-          dependArray(value)
+          if (Array.isArray(value)) {
+            dependArray(value)
+          }
         }
       }
       return value

From ef432c6e86d34d891034fd7668a85793be4a2607 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 03:57:29 -0400
Subject: [PATCH 078/911] build: build 2.4.3

---
 dist/vue.common.js                          | 355 +++++++++++++-------
 dist/vue.esm.js                             | 355 +++++++++++++-------
 dist/vue.js                                 | 353 ++++++++++++-------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  | 326 ++++++++++++------
 dist/vue.runtime.esm.js                     | 326 ++++++++++++------
 dist/vue.runtime.js                         | 322 ++++++++++++------
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 127 ++++---
 packages/vue-server-renderer/build.js       | 149 ++++----
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/build.js     |  70 ++--
 packages/vue-template-compiler/package.json |   2 +-
 13 files changed, 1562 insertions(+), 833 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 5df75cba930..931f3341280 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -164,12 +164,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -588,7 +585,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -670,13 +667,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -976,9 +973,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1155,7 +1152,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1558,7 +1555,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1756,7 +1758,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode) {
+function cloneVNode (vnode, deep) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -1772,14 +1774,17 @@ function cloneVNode (vnode) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
   return cloned
 }
 
-function cloneVNodes (vnodes) {
+function cloneVNodes (vnodes, deep) {
   var len = vnodes.length;
   var res = new Array(len);
   for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
+    res[i] = cloneVNode(vnodes[i], deep);
   }
   return res
 }
@@ -1793,8 +1798,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1820,6 +1827,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -1828,10 +1840,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1841,12 +1856,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2161,11 +2184,17 @@ function resolveAsyncComponent (
 
 /*  */
 
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
 function getFirstComponentChild (children) {
   if (Array.isArray(children)) {
     for (var i = 0; i < children.length; i++) {
       var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
@@ -2252,8 +2281,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
       }
       return vm
     }
@@ -2266,14 +2295,16 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
       }
     }
     return vm
@@ -2325,10 +2356,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -2581,11 +2617,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -3172,7 +3208,7 @@ function initData (vm) {
     if (process.env.NODE_ENV !== 'production') {
       if (methods && hasOwn(methods, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a data property."),
+          ("Method \"" + key + "\" has already been defined as a data property."),
           vm
         );
       }
@@ -3205,6 +3241,8 @@ var computedWatcherOptions = { lazy: true };
 function initComputed (vm, computed) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
   for (var key in computed) {
     var userDef = computed[key];
@@ -3215,8 +3253,16 @@ function initComputed (vm, computed) {
         vm
       );
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3233,13 +3279,20 @@ function initComputed (vm, computed) {
   }
 }
 
-function defineComputed (target, key, userDef) {
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop;
@@ -3278,22 +3331,28 @@ function initMethods (vm, methods) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
     if (process.env.NODE_ENV !== 'production') {
       if (methods[key] == null) {
         warn(
-          "method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
       }
       if (props && hasOwn(props, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a prop."),
+          ("Method \"" + key + "\" has already been defined as a prop."),
           vm
         );
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3413,7 +3472,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -3448,7 +3510,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -3463,7 +3525,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
@@ -3787,7 +3849,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -4083,17 +4145,18 @@ function initRender (vm) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   var parentData = parentVnode && parentVnode.data;
+
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4110,9 +4173,13 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
+        var slot = vm.$slots[key];
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
       }
     }
 
@@ -4657,7 +4724,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.2';
+Vue$3.version = '2.4.3';
 
 /*  */
 
@@ -4666,7 +4733,7 @@ Vue$3.version = '2.4.2';
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -4855,6 +4922,8 @@ function isUnknownElement (tag) {
   }
 }
 
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -5001,8 +5070,6 @@ function registerRef (vnode, isRemoval) {
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -5028,14 +5095,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') { return true }
   var i;
   var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
   var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
@@ -5367,10 +5432,11 @@ function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx];
       } else {
         if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
         } else {
           elmToMove = oldCh[idxInOld];
           /* istanbul ignore if */
@@ -5384,13 +5450,12 @@ function createPatchFunction (backend) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           }
         }
+        newStartVnode = newCh[++newStartIdx];
       }
     }
     if (oldStartIdx > oldEndIdx) {
@@ -5401,6 +5466,13 @@ function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
@@ -5508,27 +5580,46 @@ function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue);
         } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
             }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if (process.env.NODE_ENV !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
             }
-            return false
           }
         }
       }
@@ -5619,14 +5710,28 @@ function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
           while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
             ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
             }
+            ancestor = ancestor.parent;
           }
         }
 
@@ -5810,7 +5915,12 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
-      el.setAttribute(key, key);
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
     el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
@@ -6317,7 +6427,7 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat($$v))}" +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
       "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
@@ -6686,7 +6796,7 @@ function updateStyle (oldVnode, vnode) {
   var style = normalizeStyleBinding(vnode.data.style) || {};
 
   // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
+  // make sure to clone it if it's reactive, since the user likely wants
   // to mutate it.
   vnode.data.normalizedStyle = isDef(style.__ob__)
     ? extend({}, style)
@@ -7291,8 +7401,6 @@ var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  * properties to Elements.
  */
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
 /* istanbul ignore if */
 if (isIE9) {
   // http://www.matts411.com/post/internet-explorer-9-oninput/
@@ -7307,14 +7415,7 @@ if (isIE9) {
 var model$1 = {
   inserted: function inserted (el, binding, vnode) {
     if (vnode.tag === 'select') {
-      var cb = function () {
-        setSelected(el, binding, vnode.context);
-      };
-      cb();
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0);
-      }
+      setSelected(el, binding, vnode.context);
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7345,13 +7446,30 @@ var model$1 = {
       var prevOptions = el._vOptions;
       var curOptions = el._vOptions = [].map.call(el.options, getValue);
       if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        trigger(el, 'change');
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
       }
     }
   }
 };
 
 function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
   var value = binding.value;
   var isMultiple = el.multiple;
   if (isMultiple && !Array.isArray(value)) {
@@ -7384,6 +7502,10 @@ function setSelected (el, binding, vm) {
   }
 }
 
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
 function getValue (option) {
   return '_value' in option
     ? option._value
@@ -7546,10 +7668,6 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -8117,29 +8235,14 @@ var he = {
  */
 
 // Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-];
-var attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-);
-
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!--/;
 var conditionalComment = /^<!\[/;
@@ -8839,6 +8942,8 @@ function processSlot (el) {
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget);
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope');
@@ -9375,7 +9480,7 @@ function genOnce (el, state) {
       );
       return genElement(el, state)
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
     return genStatic(el, state)
   }
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 62e215eb83c..9f2dc381ee4 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -162,12 +162,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -586,7 +583,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -668,13 +665,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -974,9 +971,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1153,7 +1150,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1556,7 +1553,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1754,7 +1756,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode) {
+function cloneVNode (vnode, deep) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -1770,14 +1772,17 @@ function cloneVNode (vnode) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
   return cloned
 }
 
-function cloneVNodes (vnodes) {
+function cloneVNodes (vnodes, deep) {
   var len = vnodes.length;
   var res = new Array(len);
   for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
+    res[i] = cloneVNode(vnodes[i], deep);
   }
   return res
 }
@@ -1791,8 +1796,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1818,6 +1825,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -1826,10 +1838,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1839,12 +1854,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2159,11 +2182,17 @@ function resolveAsyncComponent (
 
 /*  */
 
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
 function getFirstComponentChild (children) {
   if (Array.isArray(children)) {
     for (var i = 0; i < children.length; i++) {
       var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
@@ -2250,8 +2279,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
       }
       return vm
     }
@@ -2264,14 +2293,16 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
       }
     }
     return vm
@@ -2323,10 +2354,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -2579,11 +2615,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -3170,7 +3206,7 @@ function initData (vm) {
     if (process.env.NODE_ENV !== 'production') {
       if (methods && hasOwn(methods, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a data property."),
+          ("Method \"" + key + "\" has already been defined as a data property."),
           vm
         );
       }
@@ -3203,6 +3239,8 @@ var computedWatcherOptions = { lazy: true };
 function initComputed (vm, computed) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
   for (var key in computed) {
     var userDef = computed[key];
@@ -3213,8 +3251,16 @@ function initComputed (vm, computed) {
         vm
       );
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3231,13 +3277,20 @@ function initComputed (vm, computed) {
   }
 }
 
-function defineComputed (target, key, userDef) {
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop;
@@ -3276,22 +3329,28 @@ function initMethods (vm, methods) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
     if (process.env.NODE_ENV !== 'production') {
       if (methods[key] == null) {
         warn(
-          "method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
       }
       if (props && hasOwn(props, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a prop."),
+          ("Method \"" + key + "\" has already been defined as a prop."),
           vm
         );
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3411,7 +3470,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -3446,7 +3508,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -3461,7 +3523,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
@@ -3785,7 +3847,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -4081,17 +4143,18 @@ function initRender (vm) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   var parentData = parentVnode && parentVnode.data;
+
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4108,9 +4171,13 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
+        var slot = vm.$slots[key];
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
       }
     }
 
@@ -4655,7 +4722,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.2';
+Vue$3.version = '2.4.3';
 
 /*  */
 
@@ -4664,7 +4731,7 @@ Vue$3.version = '2.4.2';
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -4853,6 +4920,8 @@ function isUnknownElement (tag) {
   }
 }
 
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -4999,8 +5068,6 @@ function registerRef (vnode, isRemoval) {
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -5026,14 +5093,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') { return true }
   var i;
   var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
   var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
@@ -5365,10 +5430,11 @@ function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx];
       } else {
         if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
         } else {
           elmToMove = oldCh[idxInOld];
           /* istanbul ignore if */
@@ -5382,13 +5448,12 @@ function createPatchFunction (backend) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           }
         }
+        newStartVnode = newCh[++newStartIdx];
       }
     }
     if (oldStartIdx > oldEndIdx) {
@@ -5399,6 +5464,13 @@ function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
@@ -5506,27 +5578,46 @@ function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue);
         } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
             }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if (process.env.NODE_ENV !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
             }
-            return false
           }
         }
       }
@@ -5617,14 +5708,28 @@ function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
           while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
             ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
             }
+            ancestor = ancestor.parent;
           }
         }
 
@@ -5808,7 +5913,12 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
-      el.setAttribute(key, key);
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
     el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
@@ -6315,7 +6425,7 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat($$v))}" +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
       "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
@@ -6684,7 +6794,7 @@ function updateStyle (oldVnode, vnode) {
   var style = normalizeStyleBinding(vnode.data.style) || {};
 
   // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
+  // make sure to clone it if it's reactive, since the user likely wants
   // to mutate it.
   vnode.data.normalizedStyle = isDef(style.__ob__)
     ? extend({}, style)
@@ -7289,8 +7399,6 @@ var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  * properties to Elements.
  */
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
 /* istanbul ignore if */
 if (isIE9) {
   // http://www.matts411.com/post/internet-explorer-9-oninput/
@@ -7305,14 +7413,7 @@ if (isIE9) {
 var model$1 = {
   inserted: function inserted (el, binding, vnode) {
     if (vnode.tag === 'select') {
-      var cb = function () {
-        setSelected(el, binding, vnode.context);
-      };
-      cb();
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0);
-      }
+      setSelected(el, binding, vnode.context);
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7343,13 +7444,30 @@ var model$1 = {
       var prevOptions = el._vOptions;
       var curOptions = el._vOptions = [].map.call(el.options, getValue);
       if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        trigger(el, 'change');
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
       }
     }
   }
 };
 
 function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
   var value = binding.value;
   var isMultiple = el.multiple;
   if (isMultiple && !Array.isArray(value)) {
@@ -7382,6 +7500,10 @@ function setSelected (el, binding, vm) {
   }
 }
 
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
 function getValue (option) {
   return '_value' in option
     ? option._value
@@ -7544,10 +7666,6 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -8115,29 +8233,14 @@ var he = {
  */
 
 // Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-];
-var attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-);
-
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!--/;
 var conditionalComment = /^<!\[/;
@@ -8837,6 +8940,8 @@ function processSlot (el) {
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget);
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope');
@@ -9373,7 +9478,7 @@ function genOnce (el, state) {
       );
       return genElement(el, state)
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
     return genStatic(el, state)
   }
diff --git a/dist/vue.js b/dist/vue.js
index 5f60f4c2cc2..4451bc60d0e 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -83,7 +83,7 @@ function toString (val) {
 }
 
 /**
- * Convert an input value to a number for persistence.
+ * Convert a input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -168,12 +168,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -592,7 +589,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -674,13 +671,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -980,9 +977,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1159,7 +1156,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1562,7 +1559,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1760,7 +1762,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode) {
+function cloneVNode (vnode, deep) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -1776,14 +1778,17 @@ function cloneVNode (vnode) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
   return cloned
 }
 
-function cloneVNodes (vnodes) {
+function cloneVNodes (vnodes, deep) {
   var len = vnodes.length;
   var res = new Array(len);
   for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
+    res[i] = cloneVNode(vnodes[i], deep);
   }
   return res
 }
@@ -1797,8 +1802,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1824,6 +1831,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -1832,10 +1844,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1845,12 +1860,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2163,11 +2186,17 @@ function resolveAsyncComponent (
 
 /*  */
 
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
 function getFirstComponentChild (children) {
   if (Array.isArray(children)) {
     for (var i = 0; i < children.length; i++) {
       var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
@@ -2254,8 +2283,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
       }
       return vm
     }
@@ -2268,14 +2297,16 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
       }
     }
     return vm
@@ -2327,10 +2358,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -2583,11 +2619,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -3170,7 +3206,7 @@ function initData (vm) {
     {
       if (methods && hasOwn(methods, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a data property."),
+          ("Method \"" + key + "\" has already been defined as a data property."),
           vm
         );
       }
@@ -3203,6 +3239,8 @@ var computedWatcherOptions = { lazy: true };
 function initComputed (vm, computed) {
   "development" !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
   for (var key in computed) {
     var userDef = computed[key];
@@ -3213,8 +3251,16 @@ function initComputed (vm, computed) {
         vm
       );
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3231,13 +3277,20 @@ function initComputed (vm, computed) {
   }
 }
 
-function defineComputed (target, key, userDef) {
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop;
@@ -3276,22 +3329,28 @@ function initMethods (vm, methods) {
   "development" !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
     {
       if (methods[key] == null) {
         warn(
-          "method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
       }
       if (props && hasOwn(props, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a prop."),
+          ("Method \"" + key + "\" has already been defined as a prop."),
           vm
         );
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3409,7 +3468,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -3444,7 +3506,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -3459,7 +3521,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
@@ -3783,7 +3845,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -4079,12 +4141,13 @@ function initRender (vm) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   var parentData = parentVnode && parentVnode.data;
+
   /* istanbul ignore else */
   {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   }
@@ -4103,9 +4166,13 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
+        var slot = vm.$slots[key];
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
       }
     }
 
@@ -4646,7 +4713,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.2';
+Vue$3.version = '2.4.3';
 
 /*  */
 
@@ -4655,7 +4722,7 @@ Vue$3.version = '2.4.2';
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -4844,6 +4911,8 @@ function isUnknownElement (tag) {
   }
 }
 
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -4990,8 +5059,6 @@ function registerRef (vnode, isRemoval) {
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -5017,14 +5084,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') { return true }
   var i;
   var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
   var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
@@ -5356,10 +5421,11 @@ function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx];
       } else {
         if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
         } else {
           elmToMove = oldCh[idxInOld];
           /* istanbul ignore if */
@@ -5373,13 +5439,12 @@ function createPatchFunction (backend) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           }
         }
+        newStartVnode = newCh[++newStartIdx];
       }
     }
     if (oldStartIdx > oldEndIdx) {
@@ -5390,6 +5455,13 @@ function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
@@ -5497,27 +5569,46 @@ function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue);
         } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
             }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if ("development" !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
             }
-            return false
           }
         }
       }
@@ -5608,14 +5699,28 @@ function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
           while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
             ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
             }
+            ancestor = ancestor.parent;
           }
         }
 
@@ -5799,7 +5904,12 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
-      el.setAttribute(key, key);
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
     el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
@@ -6306,7 +6416,7 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat($$v))}" +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
       "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
@@ -6675,7 +6785,7 @@ function updateStyle (oldVnode, vnode) {
   var style = normalizeStyleBinding(vnode.data.style) || {};
 
   // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
+  // make sure to clone it if it's reactive, since the user likely wants
   // to mutate it.
   vnode.data.normalizedStyle = isDef(style.__ob__)
     ? extend({}, style)
@@ -7280,8 +7390,6 @@ var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  * properties to Elements.
  */
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
 /* istanbul ignore if */
 if (isIE9) {
   // http://www.matts411.com/post/internet-explorer-9-oninput/
@@ -7296,14 +7404,7 @@ if (isIE9) {
 var model$1 = {
   inserted: function inserted (el, binding, vnode) {
     if (vnode.tag === 'select') {
-      var cb = function () {
-        setSelected(el, binding, vnode.context);
-      };
-      cb();
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0);
-      }
+      setSelected(el, binding, vnode.context);
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7334,13 +7435,30 @@ var model$1 = {
       var prevOptions = el._vOptions;
       var curOptions = el._vOptions = [].map.call(el.options, getValue);
       if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        trigger(el, 'change');
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
       }
     }
   }
 };
 
 function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
   var value = binding.value;
   var isMultiple = el.multiple;
   if (isMultiple && !Array.isArray(value)) {
@@ -7373,6 +7491,10 @@ function setSelected (el, binding, vm) {
   }
 }
 
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
 function getValue (option) {
   return '_value' in option
     ? option._value
@@ -7535,10 +7657,6 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -8106,29 +8224,14 @@ var he = {
  */
 
 // Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-];
-var attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-);
-
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!--/;
 var conditionalComment = /^<!\[/;
@@ -8828,6 +8931,8 @@ function processSlot (el) {
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget);
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope');
@@ -9364,7 +9469,7 @@ function genOnce (el, state) {
       );
       return genElement(el, state)
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
     return genStatic(el, state)
   }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 8111c012d70..a1cb37de6f4 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function i(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function o(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===pi.call(t)}function s(t){return"[object RegExp]"===pi.call(t)}function c(t){var e=parseFloat(t);return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function p(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function d(t,e){return hi.call(t,e)}function v(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}function h(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n}function m(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function y(t,e){for(var n in e)t[n]=e[n];return t}function g(t){for(var e={},n=0;n<t.length;n++)t[n]&&y(e,t[n]);return e}function _(t,e,n){}function b(t,e){if(t===e)return!0;var n=o(t),r=o(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var i=Array.isArray(t),a=Array.isArray(e);if(i&&a)return t.length===e.length&&t.every(function(t,n){return b(t,e[n])});if(i||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return b(t[n],e[n])})}catch(t){return!1}}function $(t,e){for(var n=0;n<t.length;n++)if(b(t[n],e))return n;return-1}function C(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}function w(t){var e=(t+"").charCodeAt(0);return 36===e||95===e}function x(t,e,n,r){Object.defineProperty(t,e,{value:n,enumerable:!!r,writable:!0,configurable:!0})}function A(t){if(!Ti.test(t)){var e=t.split(".");return function(t){for(var n=0;n<e.length;n++){if(!t)return;t=t[e[n]]}return t}}}function k(t,e,n){if(ki.errorHandler)ki.errorHandler.call(null,t,e,n);else{if(!ji||"undefined"==typeof console)throw t;console.error(t)}}function O(t){return"function"==typeof t&&/native code/.test(t.toString())}function T(t){Gi.target&&Zi.push(Gi.target),Gi.target=t}function S(){Gi.target=Zi.pop()}function E(t,e,n){t.__proto__=e}function j(t,e,n){for(var r=0,i=n.length;r<i;r++){var o=n[r];x(t,o,e[o])}}function L(t,e){if(o(t)){var n;return d(t,"__ob__")&&t.__ob__ instanceof eo?n=t.__ob__:to.shouldConvert&&!zi()&&(Array.isArray(t)||a(t))&&Object.isExtensible(t)&&!t._isVue&&(n=new eo(t)),e&&n&&n.vmCount++,n}}function N(t,e,n,r,i){var o=new Gi,a=Object.getOwnPropertyDescriptor(t,e);if(!a||!1!==a.configurable){var s=a&&a.get,c=a&&a.set,u=!i&&L(n);Object.defineProperty(t,e,{enumerable:!0,configurable:!0,get:function(){var e=s?s.call(t):n;return Gi.target&&(o.depend(),u&&u.dep.depend(),Array.isArray(e)&&D(e)),e},set:function(e){var r=s?s.call(t):n;e===r||e!==e&&r!==r||(c?c.call(t,e):n=e,u=!i&&L(e),o.notify())}})}}function I(t,e,n){if(Array.isArray(t)&&c(e))return t.length=Math.max(t.length,e),t.splice(e,1,n),n;if(d(t,e))return t[e]=n,n;var r=t.__ob__;return t._isVue||r&&r.vmCount?n:r?(N(r.value,e,n),r.dep.notify(),n):(t[e]=n,n)}function M(t,e){if(Array.isArray(t)&&c(e))t.splice(e,1);else{var n=t.__ob__;t._isVue||n&&n.vmCount||d(t,e)&&(delete t[e],n&&n.dep.notify())}}function D(t){for(var e=void 0,n=0,r=t.length;n<r;n++)(e=t[n])&&e.__ob__&&e.__ob__.dep.depend(),Array.isArray(e)&&D(e)}function P(t,e){if(!e)return t;for(var n,r,i,o=Object.keys(e),s=0;s<o.length;s++)r=t[n=o[s]],i=e[n],d(t,n)?a(r)&&a(i)&&P(r,i):I(t,n,i);return 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c=i[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(o.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,o)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";if(t.length&&this.hasMove(t[0].elm,e)){t.forEach(cr),t.forEach(ur),t.forEach(lr);document.body.offsetHeight;t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Fn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Ta,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Ta,t),n._moveCb=null,Rn(n,e))})}})}},methods:{hasMove:function(t,e){if(!xa)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){In(n,t)}),Mn(n,e),n.style.display="none",this.$el.appendChild(n);var r=Bn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};$e.config.mustUseProp=Vo,$e.config.isReservedTag=Xo,$e.config.isReservedAttr=Bo,$e.config.getTagNamespace=Re,$e.config.isUnknownElement=function(t){if(!Mi)return!0;if(Xo(t))return!1;if(t=t.toLowerCase(),null!=ta[t])return ta[t];var e=document.createElement(t);return t.indexOf("-")>-1?ta[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:ta[t]=/HTMLUnknownElement/.test(e.toString())},y($e.options.directives,Ma),y($e.options.components,Fa),$e.prototype.__patch__=Mi?Na:_,$e.prototype.$mount=function(t,e){return t=t&&Mi?He(t):void 0,Ct(this,t,e)},setTimeout(function(){Si.devtools&&Wi&&Wi.emit("init",$e)},0);var Ra,Ha=!!Mi&&function(t,e){var n=document.createElement("div");return n.innerHTML='<div a="'+t+'"/>',n.innerHTML.indexOf(e)>0}("\n","&#10;"),Ba=/\{\{((?:.|\n)+?)\}\}/g,Ua=/[-.*+?^${}()|[\]\/\\]/g,Va=v(function(t){var e=t[0].replace(Ua,"\\$&"),n=t[1].replace(Ua,"\\$&");return new RegExp(e+"((?:.|\\n)+?)"+n,"g")}),za=[{staticKeys:["staticClass"],transformNode:function(t,e){e.warn;var n=un(t,"class");n&&(t.staticClass=JSON.stringify(n));var r=cn(t,"class",!1);r&&(t.classBinding=r)},genData:function(t){var e="";return t.staticClass&&(e+="staticClass:"+t.staticClass+","),t.classBinding&&(e+="class:"+t.classBinding+","),e}},{staticKeys:["staticStyle"],transformNode:function(t,e){e.warn;var n=un(t,"style");n&&(t.staticStyle=JSON.stringify(ma(n)));var r=cn(t,"style",!1);r&&(t.styleBinding=r)},genData:function(t){var e="";return t.staticStyle&&(e+="staticStyle:"+t.staticStyle+","),t.styleBinding&&(e+="style:("+t.styleBinding+"),"),e}}],Ka={model:function(t,e,n){Fo=n;var r=e.value,i=e.modifiers,o=t.tag,a=t.attrsMap.type;if(t.component)return ln(t,r,i),!1;if("select"===o)bn(t,r,i);else if("input"===o&&"checkbox"===a)gn(t,r,i);else if("input"===o&&"radio"===a)_n(t,r,i);else if("input"===o||"textarea"===o)$n(t,r,i);else if(!Si.isReservedTag(o))return ln(t,r,i),!1;return!0},text:function(t,e){e.value&&rn(t,"textContent","_s("+e.value+")")},html:function(t,e){e.value&&rn(t,"innerHTML","_s("+e.value+")")}},Ja=f("area,base,br,col,embed,frame,hr,img,input,isindex,keygen,link,meta,param,source,track,wbr"),qa=f("colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source"),Wa=f("address,article,aside,base,blockquote,body,caption,col,colgroup,dd,details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,title,tr,track"),Ga={expectHTML:!0,modules:za,directives:Ka,isPreTag:function(t){return"pre"===t},isUnaryTag:Ja,mustUseProp:Vo,canBeLeftOpenTag:qa,isReservedTag:Xo,getTagNamespace:Re,staticKeys:function(t){return t.reduce(function(t,e){return t.concat(e.staticKeys||[])},[]).join(",")}(za)},Za={decode:function(t){return Ra=Ra||document.createElement("div"),Ra.innerHTML=t,Ra.textContent}},Ya=/^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/,Qa="[a-zA-Z_][\\w\\-\\.]*",Xa="((?:"+Qa+"\\:)?"+Qa+")",ts=new RegExp("^<"+Xa),es=/^\s*(\/?)>/,ns=new RegExp("^<\\/"+Xa+"[^>]*>"),rs=/^<!DOCTYPE [^>]+>/i,is=/^<!--/,os=/^<!\[/,as=!1;"x".replace(/x(.)?/g,function(t,e){as=""===e});var ss,cs,us,ls,fs,ps,ds,vs,hs,ms,ys=f("script,style,textarea",!0),gs={},_s={"&lt;":"<","&gt;":">","&quot;":'"',"&amp;":"&","&#10;":"\n"},bs=/&(?:lt|gt|quot|amp);/g,$s=/&(?:lt|gt|quot|amp|#10);/g,Cs=f("pre,textarea",!0),ws=function(t,e){return t&&Cs(t)&&"\n"===e[0]},xs=/^@|^v-on:/,As=/^v-|^@|^:/,ks=/(.*?)\s+(?:in|of)\s+(.*)/,Os=/\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/,Ts=/:(.*)$/,Ss=/^:|^v-bind:/,Es=/\.[^.]+/g,js=v(Za.decode),Ls=/^xmlns:NS\d+/,Ns=/^NS\d+:/,Ms=v(function(t){return f("type,tag,attrsList,attrsMap,plain,parent,children,attrs"+(t?","+t:""))}),Is=/^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/,Ds=/^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/,Ps={esc:27,tab:9,enter:13,space:32,up:38,left:37,right:39,down:40,delete:[8,46]},Fs=function(t){return"if("+t+")return null;"},Rs={stop:"$event.stopPropagation();",prevent:"$event.preventDefault();",self:Fs("$event.target !== $event.currentTarget"),ctrl:Fs("!$event.ctrlKey"),shift:Fs("!$event.shiftKey"),alt:Fs("!$event.altKey"),meta:Fs("!$event.metaKey"),left:Fs("'button' in $event && $event.button !== 0"),middle:Fs("'button' in $event && $event.button !== 1"),right:Fs("'button' in $event && $event.button !== 2")},Hs={on:function(t,e){t.wrapListeners=function(t){return"_g("+t+","+e.value+")"}},bind:function(t,e){t.wrapData=function(n){return"_b("+n+",'"+t.tag+"',"+e.value+","+(e.modifiers&&e.modifiers.prop?"true":"false")+(e.modifiers&&e.modifiers.sync?",true":"")+")"}},cloak:_},Bs=function(t){this.options=t,this.warn=t.warn||en,this.transforms=nn(t.modules,"transformCode"),this.dataGenFns=nn(t.modules,"genData"),this.directives=y(y({},Hs),t.directives);var e=t.isReservedTag||xi;this.maybeComponent=function(t){return!e(t.tag)},this.onceId=0,this.staticRenderFns=[]},Us=function(t){return function(e){function n(n,r){var i=Object.create(e),o=[],a=[];if(i.warn=function(t,e){(e?a:o).push(t)},r){r.modules&&(i.modules=(e.modules||[]).concat(r.modules)),r.directives&&(i.directives=y(Object.create(e.directives),r.directives));for(var s in r)"modules"!==s&&"directives"!==s&&(i[s]=r[s])}var c=t(n,i);return c.errors=o,c.tips=a,c}return{compile:n,compileToFunctions:di(n)}}}(function(t,e){var n=vr(t.trim(),e);Mr(n,e);var r=Vr(n,e);return{ast:n,render:r.render,staticRenderFns:r.staticRenderFns}})(Ga).compileToFunctions,Vs=v(function(t){var e=He(t);return e&&e.innerHTML}),zs=$e.prototype.$mount;return $e.prototype.$mount=function(t,e){if((t=t&&He(t))===document.body||t===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=Vs(r));else{if(!r.nodeType)return this;r=r.innerHTML}else t&&(r=vi(t));if(r){var i=Us(r,{shouldDecodeNewlines:Ha,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return zs.call(this,t,e)},$e.compile=Us,$e});
\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index fda0009a534..1c3b88e8513 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -164,12 +164,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -584,7 +581,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -666,13 +663,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -972,9 +969,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1151,7 +1148,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1554,7 +1551,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1752,7 +1754,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode) {
+function cloneVNode (vnode, deep) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -1768,14 +1770,17 @@ function cloneVNode (vnode) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
   return cloned
 }
 
-function cloneVNodes (vnodes) {
+function cloneVNodes (vnodes, deep) {
   var len = vnodes.length;
   var res = new Array(len);
   for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
+    res[i] = cloneVNode(vnodes[i], deep);
   }
   return res
 }
@@ -1789,8 +1794,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1816,6 +1823,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -1824,10 +1836,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1837,12 +1852,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2157,11 +2180,17 @@ function resolveAsyncComponent (
 
 /*  */
 
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
 function getFirstComponentChild (children) {
   if (Array.isArray(children)) {
     for (var i = 0; i < children.length; i++) {
       var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
@@ -2248,8 +2277,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
       }
       return vm
     }
@@ -2262,14 +2291,16 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
       }
     }
     return vm
@@ -2321,10 +2352,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -2577,11 +2613,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -3168,7 +3204,7 @@ function initData (vm) {
     if (process.env.NODE_ENV !== 'production') {
       if (methods && hasOwn(methods, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a data property."),
+          ("Method \"" + key + "\" has already been defined as a data property."),
           vm
         );
       }
@@ -3201,6 +3237,8 @@ var computedWatcherOptions = { lazy: true };
 function initComputed (vm, computed) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
   for (var key in computed) {
     var userDef = computed[key];
@@ -3211,8 +3249,16 @@ function initComputed (vm, computed) {
         vm
       );
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3229,13 +3275,20 @@ function initComputed (vm, computed) {
   }
 }
 
-function defineComputed (target, key, userDef) {
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop;
@@ -3274,22 +3327,28 @@ function initMethods (vm, methods) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
     if (process.env.NODE_ENV !== 'production') {
       if (methods[key] == null) {
         warn(
-          "method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
       }
       if (props && hasOwn(props, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a prop."),
+          ("Method \"" + key + "\" has already been defined as a prop."),
           vm
         );
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3409,7 +3468,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -3444,7 +3506,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -3459,7 +3521,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
@@ -3783,7 +3845,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -4079,17 +4141,18 @@ function initRender (vm) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   var parentData = parentVnode && parentVnode.data;
+
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4106,9 +4169,13 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
+        var slot = vm.$slots[key];
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
       }
     }
 
@@ -4653,7 +4720,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.2';
+Vue$3.version = '2.4.3';
 
 /*  */
 
@@ -4662,7 +4729,7 @@ Vue$3.version = '2.4.2';
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -4851,6 +4918,8 @@ function isUnknownElement (tag) {
   }
 }
 
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -4997,8 +5066,6 @@ function registerRef (vnode, isRemoval) {
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -5024,14 +5091,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') { return true }
   var i;
   var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
   var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
@@ -5363,10 +5428,11 @@ function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx];
       } else {
         if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
         } else {
           elmToMove = oldCh[idxInOld];
           /* istanbul ignore if */
@@ -5380,13 +5446,12 @@ function createPatchFunction (backend) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           }
         }
+        newStartVnode = newCh[++newStartIdx];
       }
     }
     if (oldStartIdx > oldEndIdx) {
@@ -5397,6 +5462,13 @@ function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
@@ -5504,27 +5576,46 @@ function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue);
         } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
             }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if (process.env.NODE_ENV !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
             }
-            return false
           }
         }
       }
@@ -5615,14 +5706,28 @@ function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
           while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
             ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
             }
+            ancestor = ancestor.parent;
           }
         }
 
@@ -5806,7 +5911,12 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
-      el.setAttribute(key, key);
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
     el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
@@ -6220,7 +6330,7 @@ function updateStyle (oldVnode, vnode) {
   var style = normalizeStyleBinding(vnode.data.style) || {};
 
   // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
+  // make sure to clone it if it's reactive, since the user likely wants
   // to mutate it.
   vnode.data.normalizedStyle = isDef(style.__ob__)
     ? extend({}, style)
@@ -6825,8 +6935,6 @@ var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  * properties to Elements.
  */
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
 /* istanbul ignore if */
 if (isIE9) {
   // http://www.matts411.com/post/internet-explorer-9-oninput/
@@ -6841,14 +6949,7 @@ if (isIE9) {
 var model$1 = {
   inserted: function inserted (el, binding, vnode) {
     if (vnode.tag === 'select') {
-      var cb = function () {
-        setSelected(el, binding, vnode.context);
-      };
-      cb();
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0);
-      }
+      setSelected(el, binding, vnode.context);
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -6879,13 +6980,30 @@ var model$1 = {
       var prevOptions = el._vOptions;
       var curOptions = el._vOptions = [].map.call(el.options, getValue);
       if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        trigger(el, 'change');
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
       }
     }
   }
 };
 
 function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
   var value = binding.value;
   var isMultiple = el.multiple;
   if (isMultiple && !Array.isArray(value)) {
@@ -6918,6 +7036,10 @@ function setSelected (el, binding, vm) {
   }
 }
 
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
 function getValue (option) {
   return '_value' in option
     ? option._value
@@ -7080,10 +7202,6 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
 var Transition = {
   name: 'transition',
   props: transitionProps,
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index e12f85c18b4..71c675b0c56 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -162,12 +162,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -582,7 +579,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -664,13 +661,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -970,9 +967,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1149,7 +1146,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1552,7 +1549,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1750,7 +1752,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode) {
+function cloneVNode (vnode, deep) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -1766,14 +1768,17 @@ function cloneVNode (vnode) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
   return cloned
 }
 
-function cloneVNodes (vnodes) {
+function cloneVNodes (vnodes, deep) {
   var len = vnodes.length;
   var res = new Array(len);
   for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
+    res[i] = cloneVNode(vnodes[i], deep);
   }
   return res
 }
@@ -1787,8 +1792,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1814,6 +1821,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -1822,10 +1834,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1835,12 +1850,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2155,11 +2178,17 @@ function resolveAsyncComponent (
 
 /*  */
 
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
 function getFirstComponentChild (children) {
   if (Array.isArray(children)) {
     for (var i = 0; i < children.length; i++) {
       var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
@@ -2246,8 +2275,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
       }
       return vm
     }
@@ -2260,14 +2289,16 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
       }
     }
     return vm
@@ -2319,10 +2350,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -2575,11 +2611,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -3166,7 +3202,7 @@ function initData (vm) {
     if (process.env.NODE_ENV !== 'production') {
       if (methods && hasOwn(methods, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a data property."),
+          ("Method \"" + key + "\" has already been defined as a data property."),
           vm
         );
       }
@@ -3199,6 +3235,8 @@ var computedWatcherOptions = { lazy: true };
 function initComputed (vm, computed) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
   for (var key in computed) {
     var userDef = computed[key];
@@ -3209,8 +3247,16 @@ function initComputed (vm, computed) {
         vm
       );
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3227,13 +3273,20 @@ function initComputed (vm, computed) {
   }
 }
 
-function defineComputed (target, key, userDef) {
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop;
@@ -3272,22 +3325,28 @@ function initMethods (vm, methods) {
   process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
     if (process.env.NODE_ENV !== 'production') {
       if (methods[key] == null) {
         warn(
-          "method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
       }
       if (props && hasOwn(props, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a prop."),
+          ("Method \"" + key + "\" has already been defined as a prop."),
           vm
         );
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3407,7 +3466,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -3442,7 +3504,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -3457,7 +3519,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
@@ -3781,7 +3843,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -4077,17 +4139,18 @@ function initRender (vm) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   var parentData = parentVnode && parentVnode.data;
+
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4104,9 +4167,13 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
+        var slot = vm.$slots[key];
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
       }
     }
 
@@ -4651,7 +4718,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.2';
+Vue$3.version = '2.4.3';
 
 /*  */
 
@@ -4660,7 +4727,7 @@ Vue$3.version = '2.4.2';
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -4849,6 +4916,8 @@ function isUnknownElement (tag) {
   }
 }
 
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -4995,8 +5064,6 @@ function registerRef (vnode, isRemoval) {
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -5022,14 +5089,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') { return true }
   var i;
   var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
   var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
@@ -5361,10 +5426,11 @@ function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx];
       } else {
         if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
         } else {
           elmToMove = oldCh[idxInOld];
           /* istanbul ignore if */
@@ -5378,13 +5444,12 @@ function createPatchFunction (backend) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           }
         }
+        newStartVnode = newCh[++newStartIdx];
       }
     }
     if (oldStartIdx > oldEndIdx) {
@@ -5395,6 +5460,13 @@ function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
@@ -5502,27 +5574,46 @@ function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue);
         } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
             }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if (process.env.NODE_ENV !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
             }
-            return false
           }
         }
       }
@@ -5613,14 +5704,28 @@ function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
           while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
             ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
             }
+            ancestor = ancestor.parent;
           }
         }
 
@@ -5804,7 +5909,12 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
-      el.setAttribute(key, key);
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
     el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
@@ -6218,7 +6328,7 @@ function updateStyle (oldVnode, vnode) {
   var style = normalizeStyleBinding(vnode.data.style) || {};
 
   // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
+  // make sure to clone it if it's reactive, since the user likely wants
   // to mutate it.
   vnode.data.normalizedStyle = isDef(style.__ob__)
     ? extend({}, style)
@@ -6823,8 +6933,6 @@ var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  * properties to Elements.
  */
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
 /* istanbul ignore if */
 if (isIE9) {
   // http://www.matts411.com/post/internet-explorer-9-oninput/
@@ -6839,14 +6947,7 @@ if (isIE9) {
 var model$1 = {
   inserted: function inserted (el, binding, vnode) {
     if (vnode.tag === 'select') {
-      var cb = function () {
-        setSelected(el, binding, vnode.context);
-      };
-      cb();
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0);
-      }
+      setSelected(el, binding, vnode.context);
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -6877,13 +6978,30 @@ var model$1 = {
       var prevOptions = el._vOptions;
       var curOptions = el._vOptions = [].map.call(el.options, getValue);
       if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        trigger(el, 'change');
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
       }
     }
   }
 };
 
 function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
   var value = binding.value;
   var isMultiple = el.multiple;
   if (isMultiple && !Array.isArray(value)) {
@@ -6916,6 +7034,10 @@ function setSelected (el, binding, vm) {
   }
 }
 
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
 function getValue (option) {
   return '_value' in option
     ? option._value
@@ -7078,10 +7200,6 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
 var Transition = {
   name: 'transition',
   props: transitionProps,
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index dc5f4e91926..7a07cc363f4 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -168,12 +168,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -588,7 +585,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -670,13 +667,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -976,9 +973,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1155,7 +1152,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1558,7 +1555,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1756,7 +1758,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode) {
+function cloneVNode (vnode, deep) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -1772,14 +1774,17 @@ function cloneVNode (vnode) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
   return cloned
 }
 
-function cloneVNodes (vnodes) {
+function cloneVNodes (vnodes, deep) {
   var len = vnodes.length;
   var res = new Array(len);
   for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
+    res[i] = cloneVNode(vnodes[i], deep);
   }
   return res
 }
@@ -1793,8 +1798,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1820,6 +1827,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -1828,10 +1840,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1841,12 +1856,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2159,11 +2182,17 @@ function resolveAsyncComponent (
 
 /*  */
 
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
 function getFirstComponentChild (children) {
   if (Array.isArray(children)) {
     for (var i = 0; i < children.length; i++) {
       var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
@@ -2250,8 +2279,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
       }
       return vm
     }
@@ -2264,14 +2293,16 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
       }
     }
     return vm
@@ -2323,10 +2354,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -2579,11 +2615,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -3166,7 +3202,7 @@ function initData (vm) {
     {
       if (methods && hasOwn(methods, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a data property."),
+          ("Method \"" + key + "\" has already been defined as a data property."),
           vm
         );
       }
@@ -3199,6 +3235,8 @@ var computedWatcherOptions = { lazy: true };
 function initComputed (vm, computed) {
   "development" !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
   for (var key in computed) {
     var userDef = computed[key];
@@ -3209,8 +3247,16 @@ function initComputed (vm, computed) {
         vm
       );
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3227,13 +3273,20 @@ function initComputed (vm, computed) {
   }
 }
 
-function defineComputed (target, key, userDef) {
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop;
@@ -3272,22 +3325,28 @@ function initMethods (vm, methods) {
   "development" !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
     {
       if (methods[key] == null) {
         warn(
-          "method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
       }
       if (props && hasOwn(props, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a prop."),
+          ("Method \"" + key + "\" has already been defined as a prop."),
           vm
         );
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3405,7 +3464,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -3440,7 +3502,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -3455,7 +3517,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
@@ -3779,7 +3841,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -4075,12 +4137,13 @@ function initRender (vm) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   var parentData = parentVnode && parentVnode.data;
+
   /* istanbul ignore else */
   {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   }
@@ -4099,9 +4162,13 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
+        var slot = vm.$slots[key];
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
       }
     }
 
@@ -4642,7 +4709,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.2';
+Vue$3.version = '2.4.3';
 
 /*  */
 
@@ -4651,7 +4718,7 @@ Vue$3.version = '2.4.2';
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -4840,6 +4907,8 @@ function isUnknownElement (tag) {
   }
 }
 
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -4986,8 +5055,6 @@ function registerRef (vnode, isRemoval) {
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -5013,14 +5080,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') { return true }
   var i;
   var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
   var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
@@ -5352,10 +5417,11 @@ function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx];
       } else {
         if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
         } else {
           elmToMove = oldCh[idxInOld];
           /* istanbul ignore if */
@@ -5369,13 +5435,12 @@ function createPatchFunction (backend) {
             patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           }
         }
+        newStartVnode = newCh[++newStartIdx];
       }
     }
     if (oldStartIdx > oldEndIdx) {
@@ -5386,6 +5451,13 @@ function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
@@ -5493,27 +5565,46 @@ function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue);
         } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
             }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if ("development" !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
             }
-            return false
           }
         }
       }
@@ -5604,14 +5695,28 @@ function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
           while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
             ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
             }
+            ancestor = ancestor.parent;
           }
         }
 
@@ -5795,7 +5900,12 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
-      el.setAttribute(key, key);
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
     el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
@@ -6209,7 +6319,7 @@ function updateStyle (oldVnode, vnode) {
   var style = normalizeStyleBinding(vnode.data.style) || {};
 
   // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likley wants
+  // make sure to clone it if it's reactive, since the user likely wants
   // to mutate it.
   vnode.data.normalizedStyle = isDef(style.__ob__)
     ? extend({}, style)
@@ -6814,8 +6924,6 @@ var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
  * properties to Elements.
  */
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
 /* istanbul ignore if */
 if (isIE9) {
   // http://www.matts411.com/post/internet-explorer-9-oninput/
@@ -6830,14 +6938,7 @@ if (isIE9) {
 var model$1 = {
   inserted: function inserted (el, binding, vnode) {
     if (vnode.tag === 'select') {
-      var cb = function () {
-        setSelected(el, binding, vnode.context);
-      };
-      cb();
-      /* istanbul ignore if */
-      if (isIE || isEdge) {
-        setTimeout(cb, 0);
-      }
+      setSelected(el, binding, vnode.context);
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -6868,13 +6969,30 @@ var model$1 = {
       var prevOptions = el._vOptions;
       var curOptions = el._vOptions = [].map.call(el.options, getValue);
       if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        trigger(el, 'change');
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
       }
     }
   }
 };
 
 function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
   var value = binding.value;
   var isMultiple = el.multiple;
   if (isMultiple && !Array.isArray(value)) {
@@ -6907,6 +7025,10 @@ function setSelected (el, binding, vm) {
   }
 }
 
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
 function getValue (option) {
   return '_value' in option
     ? option._value
@@ -7069,10 +7191,6 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
 var Transition = {
   name: 'transition',
   props: transitionProps,
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 375afc07205..89f7927008e 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.4.2
+ * Vue.js v2.4.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Rn.call(t)}function s(t){return"[object RegExp]"===Rn.call(t)}function c(t){var e=parseFloat(t);return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function p(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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s=t.data,c=t.children,l=t.tag;e(l)?(t.elm=t.ns?T.createElementNS(t.ns,l):T.createElement(l,t),y(t),v(t,c,r),e(s)&&m(t,r),d(o,t.elm,i)):n(t.isComment)?(t.elm=T.createComment(t.text),d(o,t.elm,i)):(t.elm=T.createTextNode(t.text),d(o,t.elm,i))}}function u(t,r,o,i){var a=t.data;if(e(a)){var s=e(t.componentInstance)&&a.keepAlive;if(e(a=a.hook)&&e(a=a.init)&&a(t,!1,o,i),e(t.componentInstance))return l(t,r),n(s)&&p(t,r,o,i),!0}}function l(t,n){e(t.data.pendingInsert)&&(n.push.apply(n,t.data.pendingInsert),t.data.pendingInsert=null),t.elm=t.componentInstance.$el,h(t)?(m(t,n),y(t)):(Ue(t),n.push(t))}function p(t,n,r,o){for(var i,a=t;a.componentInstance;)if(a=a.componentInstance._vnode,e(i=a.data)&&e(i=i.transition)){for(i=0;i<E.activate.length;++i)E.activate[i](Ao,a);n.push(a);break}d(r,t.elm,o)}function d(t,n,r){e(t)&&(e(r)?r.parentNode===t&&T.insertBefore(t,n,r):T.appendChild(t,n))}function v(t,e,n){if(Array.isArray(e))for(var r=0;r<e.length;++r)c(e[r],n,t.elm,null,!0);else o(t.text)&&T.appendChild(t.elm,T.createTextNode(t.text))}function h(t){for(;t.componentInstance;)t=t.componentInstance._vnode;return e(t.tag)}function m(t,n){for(var r=0;r<E.create.length;++r)E.create[r](Ao,t);e(O=t.data.hook)&&(e(O.create)&&O.create(Ao,t),e(O.insert)&&n.push(t))}function y(t){for(var n,r=t;r;)e(n=r.context)&&e(n=n.$options._scopeId)&&T.setAttribute(t.elm,n,""),r=r.parent;e(n=Fr)&&n!==t.context&&e(n=n.$options._scopeId)&&T.setAttribute(t.elm,n,"")}function _(t,e,n,r,o,i){for(;r<=o;++r)c(n[r],i,t,e)}function g(t){var n,r,o=t.data;if(e(o))for(e(n=o.hook)&&e(n=n.destroy)&&n(t),n=0;n<E.destroy.length;++n)E.destroy[n](t);if(e(n=t.children))for(r=0;r<t.children.length;++r)g(t.children[r])}function b(t,n,r,o){for(;r<=o;++r){var i=n[r];e(i)&&(e(i.tag)?(C(i),g(i)):s(i.elm))}}function C(t,n){if(e(n)||e(t.data)){var r,o=E.remove.length+1;for(e(n)?n.listeners+=o:n=a(t.elm,o),e(r=t.componentInstance)&&e(r=r._vnode)&&e(r.data)&&C(r,n),r=0;r<E.remove.length;++r)E.remove[r](t,n);e(r=t.data.hook)&&e(r=r.remove)?r(t,n):n()}else s(t.elm)}function A(n,r,o,i,a){for(var s,u,l,f=0,p=0,d=r.length-1,v=r[0],h=r[d],m=o.length-1,y=o[0],g=o[m],C=!a;f<=d&&p<=m;)t(v)?v=r[++f]:t(h)?h=r[--d]:Ve(v,y)?($(v,y,i),v=r[++f],y=o[++p]):Ve(h,g)?($(h,g,i),h=r[--d],g=o[--m]):Ve(v,g)?($(v,g,i),C&&T.insertBefore(n,v.elm,T.nextSibling(h.elm)),v=r[++f],g=o[--m]):Ve(h,y)?($(h,y,i),C&&T.insertBefore(n,h.elm,v.elm),h=r[--d],y=o[++p]):(t(s)&&(s=He(r,f,d)),t(u=e(y.key)?s[y.key]:w(y,r,f,d))?c(y,i,n,v.elm):Ve(l=r[u],y)?($(l,y,i),r[u]=void 0,C&&T.insertBefore(n,l.elm,v.elm)):c(y,i,n,v.elm),y=o[++p]);f>d?_(n,t(o[m+1])?null:o[m+1].elm,o,p,m,i):p>m&&b(n,r,f,d)}function w(t,n,r,o){for(var i=r;i<o;i++){var a=n[i];if(e(a)&&Ve(t,a))return i}}function $(r,o,i,a){if(r!==o){var s=o.elm=r.elm;if(n(r.isAsyncPlaceholder))e(o.asyncFactory.resolved)?k(r.elm,o,i):o.isAsyncPlaceholder=!0;else if(n(o.isStatic)&&n(r.isStatic)&&o.key===r.key&&(n(o.isCloned)||n(o.isOnce)))o.componentInstance=r.componentInstance;else{var c,u=o.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,o);var l=r.children,f=o.children;if(e(u)&&h(o)){for(c=0;c<E.update.length;++c)E.update[c](r,o);e(c=u.hook)&&e(c=c.update)&&c(r,o)}t(o.text)?e(l)&&e(f)?l!==f&&A(s,l,f,i,a):e(f)?(e(r.text)&&T.setTextContent(s,""),_(s,null,f,0,f.length-1,i)):e(l)?b(s,l,0,l.length-1):e(r.text)&&T.setTextContent(s,""):r.text!==o.text&&T.setTextContent(s,o.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,o)}}}function x(t,r,o){if(n(o)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var i=0;i<r.length;++i)r[i].data.hook.insert(r[i])}function k(t,r,o){if(n(r.isComment)&&e(r.asyncFactory))return r.elm=t,r.isAsyncPlaceholder=!0,!0;r.elm=t;var i=r.tag,a=r.data,s=r.children;if(e(a)&&(e(O=a.hook)&&e(O=O.init)&&O(r,!0),e(O=r.componentInstance)))return l(r,o),!0;if(e(i)){if(e(s))if(t.hasChildNodes())if(e(O=a)&&e(O=O.domProps)&&e(O=O.innerHTML)){if(O!==t.innerHTML)return!1}else{for(var c=!0,u=t.firstChild,f=0;f<s.length;f++){if(!u||!k(u,s[f],o)){c=!1;break}u=u.nextSibling}if(!c||u)return!1}else v(r,s,o);if(e(a))for(var p in a)if(!I(p)){m(r,o);break}}else t.data!==r.text&&(t.data=r.text);return!0}var O,S,E={},j=r.modules,T=r.nodeOps;for(O=0;O<wo.length;++O)for(E[wo[O]]=[],S=0;S<j.length;++S)e(j[S][wo[O]])&&E[wo[O]].push(j[S][wo[O]]);var I=f("attrs,style,class,staticClass,staticStyle,key");return function(r,o,a,s,u,l){if(!t(o)){var f=!1,p=[];if(t(r))f=!0,c(o,p,u,l);else{var d=e(r.nodeType);if(!d&&Ve(r,o))$(r,o,p,s);else{if(d){if(1===r.nodeType&&r.hasAttribute(Xn)&&(r.removeAttribute(Xn),a=!0),n(a)&&k(r,o,p))return x(o,p,!0),r;r=i(r)}var v=r.elm,m=T.parentNode(v);if(c(o,p,v._leaveCb?null:m,T.nextSibling(v)),e(o.parent))for(var y=o.parent,_=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,_){for(var A=0;A<E.create.length;++A)E.create[A](Ao,y);var w=y.data.hook.insert;if(w.merged)for(var O=1;O<w.fns.length;O++)w.fns[O]()}y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&g(r)}}return x(o,p,f),o.elm}e(r)&&g(r)}}({nodeOps:bo,modules:[Oo,So,To,Io,Ro,ar?{create:xn,activate:xn,remove:function(t,e){!0!==t.data.show?An(t,e):e()}}:{}].concat(ko)});ur&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&In(t,"input")});var Qo={model:{inserted:function(t,e,n){"select"===n.tag?(kn(t,e,n.context),t._vOptions=[].map.call(t.options,En)):("textarea"===n.tag||go(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Tn),fr||(t.addEventListener("compositionstart",jn),t.addEventListener("compositionend",Tn)),ur&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){kn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,En);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Sn(t,o)}):e.value!==e.oldValue&&Sn(e.value,o))&&In(t,"change")}}},show:{bind:function(t,e,n){var r=e.value,o=(n=Dn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Cn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Dn(n)).data&&n.data.transition?(n.data.show=!0,r?Cn(n,function(){t.style.display=t.__vOriginalDisplay}):An(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Xo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},Yo={name:"transition",props:Xo,abstract:!0,render:function(t){var e=this,n=this.$options._renderChildren;if(n&&(n=n.filter(function(t){return t.tag||pt(t)})).length){var r=this.mode,i=n[0];if(Nn(this.$vnode))return i;var a=Ln(i);if(!a)return i;if(this._leaving)return Mn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Pn(this),u=this._vnode,l=Ln(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Fn(a,l)&&!pt(l)){var f=l&&(l.data.transition=y({},c));if("out-in"===r)return this._leaving=!0,nt(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Mn(t,i);if("in-out"===r){if(pt(a))return u;var p,d=function(){p()};nt(c,"afterEnter",d),nt(c,"enterCancelled",d),nt(f,"delayLeave",function(t){p=t})}}return i}}},ti=y({tag:String,moveClass:String},Xo);delete ti.mode;var ei={Transition:Yo,TransitionGroup:{props:ti,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Pn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";if(t.length&&this.hasMove(t[0].elm,e)){t.forEach(Rn),t.forEach(Un),t.forEach(Vn);document.body.offsetHeight;t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;hn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Wo,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Wo,t),n._moveCb=null,mn(n,e))})}})}},methods:{hasMove:function(t,e){if(!Vo)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){pn(n,t)}),fn(n,e),n.style.display="none",this.$el.appendChild(n);var r=_n(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Ce.config.mustUseProp=function(t,e,n){return"value"===n&&ao(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Ce.config.isReservedTag=yo,Ce.config.isReservedAttr=io,Ce.config.getTagNamespace=function(t){return mo(t)?"svg":"math"===t?"math":void 0},Ce.config.isUnknownElement=function(t){if(!ar)return!0;if(yo(t))return!1;if(t=t.toLowerCase(),null!=_o[t])return _o[t];var e=document.createElement(t);return t.indexOf("-")>-1?_o[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:_o[t]=/HTMLUnknownElement/.test(e.toString())},y(Ce.options.directives,Qo),y(Ce.options.components,ei),Ce.prototype.__patch__=ar?Zo:g,Ce.prototype.$mount=function(t,e){return t=t&&ar?Re(t):void 0,At(this,t,e)},setTimeout(function(){er.devtools&&br&&br.emit("init",Ce)},0),Ce});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 5bd71915177..a118082da32 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -152,12 +152,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -284,8 +281,6 @@ function escape (s) {
   return s.replace(/[<>"&]/g, escapeChar)
 }
 
-var cachedEscape = cached(escape);
-
 function escapeChar (a) {
   return ESC[a] || a
 }
@@ -297,7 +292,7 @@ function escapeChar (a) {
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -367,7 +362,7 @@ function renderAttr (key, value) {
   } else if (isEnumeratedAttr(key)) {
     return (" " + key + "=\"" + (isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true') + "\"")
   } else if (!isFalsyAttrValue(value)) {
-    return (" " + key + "=\"" + (typeof value === 'string' ? cachedEscape(value) : value) + "\"")
+    return (" " + key + "=\"" + (escape(String(value))) + "\"")
   }
   return ''
 }
@@ -758,7 +753,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -840,13 +835,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -1146,9 +1141,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1304,7 +1299,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1707,7 +1702,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1871,6 +1871,10 @@ function getTagNamespace (tag) {
   }
 }
 
+
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -1882,7 +1886,7 @@ function getTagNamespace (tag) {
 function renderClass (node) {
   var classList = genClassForVnode(node);
   if (classList !== '') {
-    return (" class=\"" + (cachedEscape(classList)) + "\"")
+    return (" class=\"" + (escape(classList)) + "\"")
   }
 }
 
@@ -1974,7 +1978,7 @@ function genStyle (style) {
 function renderStyle (vnode) {
   var styleText = genStyle(getStyle(vnode, false));
   if (styleText !== '') {
-    return (" style=" + (JSON.stringify(cachedEscape(styleText))))
+    return (" style=" + (JSON.stringify(escape(styleText))))
   }
 }
 
@@ -2718,7 +2722,7 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat($$v))}" +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
       "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
@@ -3195,29 +3199,14 @@ var he = createCommonjsModule(function (module, exports) {
  */
 
 // Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-];
-var attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-);
-
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!--/;
 var conditionalComment = /^<!\[/;
@@ -3917,6 +3906,8 @@ function processSlot (el) {
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget);
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope');
@@ -4326,7 +4317,7 @@ function genOnce (el, state) {
       );
       return genElement(el, state)
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
     return genStatic(el, state)
   }
@@ -5075,10 +5066,10 @@ function elementToOpenTagSegments (el, state) {
 function childrenToSegments (el, state) {
   var binding;
   if ((binding = el.attrsMap['v-html'])) {
-    return [{ type: EXPRESSION, value: binding }]
+    return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
   }
   if ((binding = el.attrsMap['v-text'])) {
-    return [{ type: INTERPOLATION, value: binding }]
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
   return el.children
     ? nodesToSegments(el.children, state)
@@ -5097,7 +5088,7 @@ function nodesToSegments (
     } else if (c.type === 2) {
       segments.push({ type: INTERPOLATION, value: c.expression });
     } else if (c.type === 3) {
-      segments.push({ type: RAW, value: c.text });
+      segments.push({ type: RAW, value: escape(c.text) });
     }
   }
   return segments
@@ -5571,7 +5562,7 @@ function renderSSRClass (
   dynamic
 ) {
   var res = renderClass$1(staticClass, dynamic);
-  return res === '' ? res : (" class=\"" + (cachedEscape(res)) + "\"")
+  return res === '' ? res : (" class=\"" + (escape(res)) + "\"")
 }
 
 function renderSSRStyle (
@@ -5584,7 +5575,7 @@ function renderSSRStyle (
   if (dynamic) { extend(style, normalizeStyleBinding(dynamic)); }
   if (extra) { extend(style, extra); }
   var res = genStyle(style);
-  return res === '' ? res : (" style=" + (JSON.stringify(cachedEscape(res))))
+  return res === '' ? res : (" style=" + (JSON.stringify(escape(res))))
 }
 
 /* not type checking this file because flow doesn't play well with Proxy */
@@ -5693,8 +5684,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -5720,6 +5713,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -5728,10 +5726,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -5741,12 +5742,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -5955,6 +5964,8 @@ function resolveAsyncComponent (
 
 /*  */
 
+/*  */
+
 
 
 var target;
@@ -5996,10 +6007,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -6062,11 +6078,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -6642,7 +6658,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -6746,7 +6762,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -6842,7 +6861,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -6857,7 +6876,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 3be69d2d7d7..e9df5b13394 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -154,12 +154,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -286,8 +283,6 @@ function escape (s) {
   return s.replace(/[<>"&]/g, escapeChar)
 }
 
-var cachedEscape = cached(escape);
-
 function escapeChar (a) {
   return ESC[a] || a
 }
@@ -299,7 +294,7 @@ function escapeChar (a) {
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -369,7 +364,7 @@ function renderAttr (key, value) {
   } else if (isEnumeratedAttr(key)) {
     return (" " + key + "=\"" + (isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true') + "\"")
   } else if (!isFalsyAttrValue(value)) {
-    return (" " + key + "=\"" + (typeof value === 'string' ? cachedEscape(value) : value) + "\"")
+    return (" " + key + "=\"" + (escape(String(value))) + "\"")
   }
   return ''
 }
@@ -760,7 +755,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -842,13 +837,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -1148,9 +1143,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1306,7 +1301,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1709,7 +1704,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1873,6 +1873,10 @@ function getTagNamespace (tag) {
   }
 }
 
+
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -1884,7 +1888,7 @@ function getTagNamespace (tag) {
 function renderClass (node) {
   var classList = genClassForVnode(node);
   if (classList !== '') {
-    return (" class=\"" + (cachedEscape(classList)) + "\"")
+    return (" class=\"" + (escape(classList)) + "\"")
   }
 }
 
@@ -1976,7 +1980,7 @@ function genStyle (style) {
 function renderStyle (vnode) {
   var styleText = genStyle(getStyle(vnode, false));
   if (styleText !== '') {
-    return (" style=" + (JSON.stringify(cachedEscape(styleText))))
+    return (" style=" + (JSON.stringify(escape(styleText))))
   }
 }
 
@@ -2812,7 +2816,7 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat($$v))}" +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
       "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
@@ -2934,29 +2938,14 @@ var baseOptions = {
  */
 
 // Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-];
-var attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-);
-
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!--/;
 var conditionalComment = /^<!\[/;
@@ -3656,6 +3645,8 @@ function processSlot (el) {
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget);
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope');
@@ -4065,7 +4056,7 @@ function genOnce (el, state) {
       );
       return genElement(el, state)
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
     return genStatic(el, state)
   }
@@ -4814,10 +4805,10 @@ function elementToOpenTagSegments (el, state) {
 function childrenToSegments (el, state) {
   var binding;
   if ((binding = el.attrsMap['v-html'])) {
-    return [{ type: EXPRESSION, value: binding }]
+    return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
   }
   if ((binding = el.attrsMap['v-text'])) {
-    return [{ type: INTERPOLATION, value: binding }]
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
   return el.children
     ? nodesToSegments(el.children, state)
@@ -4836,7 +4827,7 @@ function nodesToSegments (
     } else if (c.type === 2) {
       segments.push({ type: INTERPOLATION, value: c.expression });
     } else if (c.type === 3) {
-      segments.push({ type: RAW, value: c.text });
+      segments.push({ type: RAW, value: escape(c.text) });
     }
   }
   return segments
@@ -5310,7 +5301,7 @@ function renderSSRClass (
   dynamic
 ) {
   var res = renderClass$1(staticClass, dynamic);
-  return res === '' ? res : (" class=\"" + (cachedEscape(res)) + "\"")
+  return res === '' ? res : (" class=\"" + (escape(res)) + "\"")
 }
 
 function renderSSRStyle (
@@ -5323,7 +5314,7 @@ function renderSSRStyle (
   if (dynamic) { extend(style, normalizeStyleBinding(dynamic)); }
   if (extra) { extend(style, extra); }
   var res = genStyle(style);
-  return res === '' ? res : (" style=" + (JSON.stringify(cachedEscape(res))))
+  return res === '' ? res : (" style=" + (JSON.stringify(escape(res))))
 }
 
 /* not type checking this file because flow doesn't play well with Proxy */
@@ -5432,8 +5423,10 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
+  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
+    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -5459,6 +5452,11 @@ function createFnInvoker (fns) {
   return invoker
 }
 
+// #6552
+function prioritizePlainEvents (a, b) {
+  return a.plain ? -1 : b.plain ? 1 : 0
+}
+
 function updateListeners (
   on,
   oldOn,
@@ -5467,10 +5465,13 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
+  var toAdd = [];
+  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -5480,12 +5481,20 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      event.handler = cur;
+      toAdd.push(event);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
+  if (toAdd.length) {
+    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
+    for (var i = 0; i < toAdd.length; i++) {
+      var event$1 = toAdd[i];
+      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
+    }
+  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -5696,6 +5705,8 @@ function resolveAsyncComponent (
 
 /*  */
 
+/*  */
+
 
 
 var target;
@@ -5737,10 +5748,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -5803,11 +5819,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -6385,7 +6401,7 @@ function _createElement (
   var vnode, ns;
   if (typeof tag === 'string') {
     var Ctor;
-    ns = config.getTagNamespace(tag);
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
     if (config.isReservedTag(tag)) {
       // platform built-in elements
       vnode = new VNode(
@@ -6489,7 +6505,10 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
@@ -6585,7 +6604,7 @@ function createFunctionalComponent (
   var propOptions = Ctor.options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
   } else {
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
@@ -6600,7 +6619,7 @@ function createFunctionalComponent (
     props: props,
     children: children,
     parent: context,
-    listeners: data.on || {},
+    listeners: data.on || emptyObject,
     injections: resolveInject(Ctor.options.inject, context),
     slots: function () { return resolveSlots(children, context); }
   });
@@ -7415,7 +7434,7 @@ var TemplateRenderer = function TemplateRenderer (options) {
   if (options.clientManifest) {
     var clientManifest = this.clientManifest = options.clientManifest;
     this.publicPath = clientManifest.publicPath.replace(/\/$/, '');
-    // preload/prefetch drectives
+    // preload/prefetch directives
     this.preloadFiles = clientManifest.initial;
     this.prefetchFiles = clientManifest.async;
     // initial async chunk mapping
@@ -7599,7 +7618,7 @@ function getPreloadType (ext) {
   } else if (/woff2?|ttf|otf|eot/.test(ext)) {
     return 'font'
   } else {
-    // not exhausting all possbilities here, but above covers common cases
+    // not exhausting all possibilities here, but above covers common cases
     return ''
   }
 }
@@ -7818,7 +7837,23 @@ function createBundleRunner (entry, files, basedir, runInNewContext) {
       if (initialContext._styles) {
         userContext._styles = deepClone(initialContext._styles);
       }
-      resolve(runner(userContext));
+      // #6353 after the app is resolved, if the userContext doesn't have a
+      // styles property, it means the app doesn't have any lifecycle-injected
+      // styles, so vue-style-loader never defined the styles getter.
+      // just expose the same styles from the initialContext.
+      var exposeStylesAndResolve = function (app) {
+        if (!userContext.hasOwnProperty('styles')) {
+          userContext.styles = initialContext.styles;
+        }
+        resolve(app);
+      };
+
+      var res = runner(userContext);
+      if (typeof res.then === 'function') {
+        res.then(exposeStylesAndResolve);
+      } else {
+        exposeStylesAndResolve(res);
+      }
     });
     }
   }
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 5a747220190..21fb02a338c 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 2e358ce3d9f..9797ee92158 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -236,29 +236,14 @@ var isNonPhrasingTag = makeMap(
  */
 
 // Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-];
-var attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-);
-
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!--/;
 var conditionalComment = /^<!\[/;
@@ -917,7 +902,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -999,13 +984,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -1295,9 +1280,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1453,7 +1438,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1598,7 +1583,7 @@ var defaultStrat = function (parentVal, childVal) {
 var isReservedAttr = makeMap('style,class');
 
 // attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select');
+var acceptValue = makeMap('input,textarea,option,select,progress');
 var mustUseProp = function (tag, type, attr) {
   return (
     (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
@@ -1665,6 +1650,10 @@ function getTagNamespace (tag) {
   }
 }
 
+
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /*  */
 
 /**
@@ -2269,7 +2258,7 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat($$v))}" +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
       "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
@@ -2792,6 +2781,8 @@ function processSlot (el) {
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget);
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope');
@@ -3328,7 +3319,7 @@ function genOnce (el, state) {
       );
       return genElement(el, state)
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
     return genStatic(el, state)
   }
@@ -3980,6 +3971,21 @@ var propsToAttrMap = {
   httpEquiv: 'http-equiv'
 };
 
+var ESC = {
+  '<': '&lt;',
+  '>': '&gt;',
+  '"': '&quot;',
+  '&': '&amp;'
+};
+
+function escape (s) {
+  return s.replace(/[<>"&]/g, escapeChar)
+}
+
+function escapeChar (a) {
+  return ESC[a] || a
+}
+
 /*  */
 
 var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
@@ -4379,10 +4385,10 @@ function elementToOpenTagSegments (el, state) {
 function childrenToSegments (el, state) {
   var binding;
   if ((binding = el.attrsMap['v-html'])) {
-    return [{ type: EXPRESSION, value: binding }]
+    return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
   }
   if ((binding = el.attrsMap['v-text'])) {
-    return [{ type: INTERPOLATION, value: binding }]
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
   return el.children
     ? nodesToSegments(el.children, state)
@@ -4401,7 +4407,7 @@ function nodesToSegments (
     } else if (c.type === 2) {
       segments.push({ type: INTERPOLATION, value: c.expression });
     } else if (c.type === 3) {
-      segments.push({ type: RAW, value: c.text });
+      segments.push({ type: RAW, value: escape(c.text) });
     }
   }
   return segments
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 20d47911062..79d07f94230 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "repository": {

From 0a7ffb148c38848cb9f59a38b101abdec863f490 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 03:57:30 -0400
Subject: [PATCH 079/911] build: release 2.4.3

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index fb11b81a29b..9acde46f1e9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 8a7ec1f748e..4345ada9ad4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 4504cafa8dcece12538c8be4ae84fb93afcdafed Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 11:13:32 -0400
Subject: [PATCH 080/911] chore: re-organize README

---
 README.md | 263 +++++++++++++++++++++++++++++++-----------------------
 1 file changed, 153 insertions(+), 110 deletions(-)

diff --git a/README.md b/README.md
index 8e1871d2705..98f1651f20e 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@
   <a href="https://saucelabs.com/u/vuejs"><img src="https://saucelabs.com/browser-matrix/vuejs.svg" alt="Sauce Test Status"></a>
 </p>
 
-## Supporting Vue.js
+<h2 align="center">Supporting Vue.js</h2>
 
 Vue.js is an MIT-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
 
@@ -22,7 +22,9 @@ Vue.js is an MIT-licensed open source project. It's an independent project with
 
 Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
 
-### Sponsors via Patreon
+<h3 align="center">Sponsors via Patreon</h3>
+
+<h4 align="center">Platinum</h4>
 
 <p align="center">
   <a href="https://stdlib.com">
@@ -32,114 +34,152 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
   <a href="https://xiaozhuanlan.com">
     <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
   </a>
-  <br><br>
-  <a href="https://deepstreamhub.com" target="_blank">
-    <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
-  </a>
-  <br><br>
-  <a href="https://jsfiddle.net/">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
-  </a>
-  <br><br>
-  <a href="https://laravel.com/">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
-  </a>
-  <br><br>
-  <a href="https://chaitin.cn/">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
-  </a>
-  <br><br>
-  <a href="https://htmlburger.com/">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
-  </a>
-  <br><br>
-  <a href="https://starter.someline.com/">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
-  </a>
-  <br><br>
-  <a href="http://monterail.com/" target="_blank">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
-  </a>
-  <br><br>
-  <a href="https://www.2mhost.com/" target="_blank">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
-  </a>
-  <br><br>
-  <a href="https://vuejsjob.com/?ref=vuejs" target="_blank">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
-  </a>
-  <br><br>
-  <a href="https://leanpub.com/vuejs2" target="_blank">
-    <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
-  </a>
-  <br><br>
-  <a href="https://component.io/" target="_blank">
-    <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
-  </a>
-  <br><br>
-  <a href="https://www.v2ex.com/t/379389" target="_blank">
-    <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
-  </a>
 </p>
 
-### Sponsors via OpenCollective
-
-#### Platinum
+<h4 align="center">Gold</h4>
+
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://deepstreamhub.com" target="_blank">
+          <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://jsfiddle.net/">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://laravel.com/">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://chaitin.cn/">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://htmlburger.com/">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://starter.someline.com/">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="http://monterail.com/" target="_blank">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.2mhost.com/" target="_blank">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://vuejsjob.com/?ref=vuejs" target="_blank">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://leanpub.com/vuejs2" target="_blank">
+          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://component.io/" target="_blank">
+          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.v2ex.com/t/379389" target="_blank">
+          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.xfive.co/" target="_blank">
+          <img width="80px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
+        </a>
+     </tr>
+  </tbody>
+</table>
+
+<h3 align="center">Sponsors via OpenCollective</h3>
+
+<h4 align="center">Platinum</h4>
 
 <a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a>
 
-#### Gold
+<h4 align="center">Gold</h4>
 
 <a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
-
-#### Silver
-
-<a href="https://opencollective.com/vuejs/silversponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/0/avatar.svg"></a>
-
-#### Bronze
-
-<a href="https://opencollective.com/vuejs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/6/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/7/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/16/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/17/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/18/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/19/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/20/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/21/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/22/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/sponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/29/avatar.svg"></a>
-
-## Intro
-
-Vue.js is a library for building interactive web interfaces. It provides data-reactive components with a simple and flexible API. Core features include:
-
-- [Declarative rendering with a plain JavaScript object based reactivity system](https://vuejs.org/guide/index.html#Declarative-Rendering)
-- [Component-oriented development style with tooling support](https://vuejs.org/guide/index.html#Composing-with-Components)
-- Lean and extensible core
-- [Flexible transition effect system](https://vuejs.org/guide/transitions.html)
-- Fast without the need for complex optimization
-
-Note that Vue.js only supports [ES5-compliant browsers](http://kangax.github.io/compat-table/es5/) (IE8 and below are not supported).
+<a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/goldsponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/4
+  /avatar.svg"></a>
+
+---
+
+## Introduction
+
+Vue (pronounced `/vjuː/`, like view) is a **progressive framework** for building user interfaces. It is designed from the ground up to be incrementally adoptable, and can easily scale between a library and a framework depending on different use cases. It consists of an approachable core library that focuses on the view layer only, and an ecosystem of supporting libraries that helps you tackle complexity in large Single-Page Applications.
+
+#### Browser Compatibility
+
+Vue.js supports all browsers that are [ES5-compliant](http://kangax.github.io/compat-table/es5/) (IE8 and below are not supported).
+
+## Ecosystem
+
+| Project | Status | Description |
+|---------|--------|-------------|
+| [vue-router]          | [![vue-router-status]][vue-router-package] | Single-page application routing |
+| [vuex]                | [![vuex-status]][vuex-package] | Large-scale state management |
+| [vue-cli]             | [![vue-cli-status]][vue-cli-package] | Project scaffolding |
+| [vue-loader]          | [![vue-loader-status]][vue-loader-package] | Single File Component (`*.vue` file) loader for webpack |
+| [vue-server-renderer] | [![vue-server-renderer-status]][vue-server-renderer-package] | Server-side rendering support |
+| [vue-class-component] | [![vue-class-component-status]][vue-class-component-package] | TypeScript decorator for a class-based API |
+| [vue-rx]              | [![vue-rx-status]][vue-rx-package] | RxJS integration |
+| [vue-devtools]        | [![vue-devtools-status]][vue-devtools-package] | Browser DevTools extension |
+
+[vue-router]: https://github.com/vuejs/vue-router
+[vuex]: https://github.com/vuejs/vuex
+[vue-cli]: https://github.com/vuejs/vue-cli
+[vue-loader]: https://github.com/vuejs/vue-loader
+[vue-server-renderer]: https://github.com/vuejs/vue/tree/dev/packages/vue-server-renderer
+[vue-class-component]: https://github.com/vuejs/vue-class-component
+[vue-rx]: https://github.com/vuejs/vue-rx
+[vue-devtools]:  https://github.com/vuejs/vue-devtools
+
+[vue-router-status]: https://img.shields.io/npm/v/vue-router.svg
+[vuex-status]: https://img.shields.io/npm/v/vuex.svg
+[vue-cli-status]: https://img.shields.io/npm/v/vue-cli.svg
+[vue-loader-status]: https://img.shields.io/npm/v/vue-loader.svg
+[vue-server-renderer-status]: https://img.shields.io/npm/v/vue-server-renderer.svg
+[vue-class-component-status]: https://img.shields.io/npm/v/vue-class-component.svg
+[vue-rx-status]: https://img.shields.io/npm/v/vue-rx.svg
+[vue-devtools-status]: https://img.shields.io/chrome-web-store/v/nhdogjmejiglipccpnnnanhbledajbpd.svg
+
+[vue-router-package]: https://npmjs.com/package/vue-router
+[vuex-package]: https://npmjs.com/package/vuex
+[vue-cli-package]: https://npmjs.com/package/vue-cli
+[vue-loader-package]: https://npmjs.com/package/vue-loader
+[vue-server-renderer-package]: https://npmjs.com/package/vue-server-renderer
+[vue-class-component-package]: https://npmjs.com/package/vue-class-component
+[vue-rx-package]: https://npmjs.com/package/vue-rx
+[vue-devtools-package]: https://chrome.google.com/webstore/detail/vuejs-devtools/nhdogjmejiglipccpnnnanhbledajbpd
 
 ## Documentation
 
@@ -153,6 +193,16 @@ For questions and support please use the [the official forum](http://forum.vuejs
 
 Please make sure to read the [Issue Reporting Checklist](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md#issue-reporting-guidelines) before opening an issue. Issues not conforming to the guidelines may be closed immediately.
 
+## Changelog
+
+Detailed changes for each release are documented in the [release notes](https://github.com/vuejs/vue/releases).
+
+## Stay In Touch
+
+- [Twitter](https://twitter.com/vuejs)
+- [Blog](https://medium.com/the-vue-point)
+- [Job Board](https://vuejobs.com/?ref=vuejs)
+
 ## Contribution
 
 Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md) before making a pull request. If you have a Vue-related project/component/tool, add it with a pull-request to [this curated list](https://github.com/vuejs/awesome-vue)!
@@ -161,13 +211,6 @@ Thank you to all the people who already contributed to Vue!
 
 <a href="https://github.com/vuejs/vue/graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
 
-## Changelog
-
-Detailed changes for each release are documented in the [release notes](https://github.com/vuejs/vue/releases).
-
-## Stay In Touch
-
-For the latest releases and announcements, follow on Twitter: [@vuejs](https://twitter.com/vuejs)
 
 ## License
 

From 7cea42b4ef34d6a502b9f7fb99fe295ee92876b2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Sep 2017 11:30:18 -0400
Subject: [PATCH 081/911] chore: re-organize backers.md

---
 BACKERS.md | 254 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 146 insertions(+), 108 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index c63454b64d7..dcbdb810cad 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -1,4 +1,4 @@
-# Backers
+<h1 align="center">Sponsors &amp; Backers</h1>
 
 Vue.js is an MIT-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
 
@@ -9,81 +9,106 @@ Vue.js is an MIT-licensed open source project. It's an independent project with
 
 Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
 
----
+<br><br>
+
+<h2 align="center">Platinum via Patreon</h2>
 
-### $2000
+<p align="center">
+  <a href="https://stdlib.com">
+    <img width="300px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+  </a>
+  <br><br>
+  <a href="https://xiaozhuanlan.com">
+    <img width="200px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+  </a>
+</p>
 
-<a href="https://stdlib.com/">
-  <img width="300px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
-</a>
+<h2 align="center">Platinum via OpenCollective</h2>
 
 <a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/5/avatar.svg"></a>
-
----
 
-### $1000
+<h2 align="center">Gold via Patreon</h2>
 
-<a href="https://xiaozhuanlan.com">
-  <img width="200px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
-</a>
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://deepstreamhub.com" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://jsfiddle.net/">
+          <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://laravel.com/">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://chaitin.cn/">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://htmlburger.com/">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://starter.someline.com/">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="http://monterail.com/" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.2mhost.com/" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://vuejsjob.com/?ref=vuejs" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://leanpub.com/vuejs2" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://component.io/" target="_blank">
+          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.v2ex.com/t/379389" target="_blank">
+          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.xfive.co/" target="_blank">
+          <img width="100px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
+        </a>
+      </td>
+    </tr>
+  </tbody>
+</table>
 
----
-
-### $500
-
-<a href="https://deepstreamhub.com">
-  <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
-</a>
-<br><br>
-<a href="https://jsfiddle.net/">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
-</a>
-<br><br>
-<a href="https://laravel.com">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
-</a>
-<br><br>
-<a href="https://chaitin.cn">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
-</a>
-<br><br>
-<a href="https://htmlburger.com/">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
-</a>
-<br><br>
-<a href="https://starter.someline.com/">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
-</a>
-<br><br>
-<a href="http://monterail.com/" target="_blank">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
-</a>
-<br><br>
-<a href="https://www.2mhost.com/" target="_blank">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
-</a>
-<br><br>
-<a href="https://vuejsjob.com/?ref=vuejs" target="_blank">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
-</a>
-<br><br>
-<a href="https://leanpub.com/vuejs2" target="_blank">
-  <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
-</a>
-<br><br>
-<a href="https://component.io/" target="_blank">
-  <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
-</a>
-<br><br>
-<a href="https://www.v2ex.com/t/379389" target="_blank">
-  <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
-</a>
-<br><br>
+<h2 align="center">Gold via OpenCollective</h2>
 
 <a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
@@ -116,12 +141,12 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <a href="https://opencollective.com/vuejs/goldsponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/28/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/29/avatar.svg"></a>
 
----
-
-### $250
+<h2 align="center">Silver via Patreon</h2>
 
 - Matt Mullenweg
 
+<h2 align="center">Silver via OpenCollective</h2>
+
 <a href="https://opencollective.com/vuejs/silversponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/silversponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/silversponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/2/avatar.svg"></a>
@@ -153,38 +178,55 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <a href="https://opencollective.com/vuejs/silversponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/28/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/silversponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/29/avatar.svg"></a>
 
----
+<h2 align="center">Bronze via Patreon</h2>
 
-### $100
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="http://tighten.co/">
+          <img width="140px" src="http://i.imgur.com/T7fQYLT.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="http://invoicemachine.com/">
+          <img width="140px" src="http://assets.invoicemachine.com/images/flat_logo.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://alligator.io">
+          <img width="140px" src="https://alligator.io/images/alligator-logo.svg">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://monei.net/">
+          <img width="90px" src="http://i.imgur.com/JUSjHAi.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.accelebrate.com/">
+          <img width="120pxpx" src="https://www.accelebrate.com/assets/images/accelebrate_logo@2x.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.waterfall.com">
+          <img width="100px" src="https://waterfall.com/waterfall_logo_large.png">
+        </a>
+      </td>
+    </tr>
+    <tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://vuetifyjs.com">
+          <img width="40px" src="https://vuetifyjs.com/static/doc-images/logo.svg">
+        </a>
+      </td>
+    </tr>
+  </tbody>
+</table>
+
+<h2 align="center">Bronze via OpenCollective</h2>
 
-<a href="http://tighten.co/">
-  <img width="140px" src="http://i.imgur.com/T7fQYLT.png">
-</a>
-&nbsp;&nbsp;
-<a href="http://invoicemachine.com/">
-  <img width="140px" src="http://assets.invoicemachine.com/images/flat_logo.png">
-</a>
-&nbsp;&nbsp;
-<a href="https://alligator.io">
-  <img width="140px" src="https://alligator.io/images/alligator-logo.svg">
-</a>
-&nbsp;&nbsp;
-<a href="https://monei.net/">
-  <img width="90px" src="http://i.imgur.com/JUSjHAi.png">
-</a>
-&nbsp;&nbsp;
-<a href="https://www.accelebrate.com/">
-  <img width="120pxpx" src="https://www.accelebrate.com/assets/images/accelebrate_logo@2x.png">
-</a>
-&nbsp;&nbsp;
-<a href="https://www.waterfall.com">
-  <img width="100px" src="https://waterfall.com/waterfall_logo_large.png">
-</a>
-&nbsp;&nbsp;<br>
-<a href="https://vuetifyjs.com">
-  <img width="40px" src="https://vuetifyjs.com/static/doc-images/logo.svg"> Vuetify
-</a>
-<br><br>
 <a href="https://opencollective.com/vuejs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/sponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/sponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/2/avatar.svg"></a>
@@ -216,9 +258,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <a href="https://opencollective.com/vuejs/sponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/28/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/sponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/29/avatar.svg"></a>
 
----
-
-### $50+ via Patreon
+<h2 align="center">Generous Backers via Patreon ($50+)</h2>
 
 - No Divide Studio
 - James Kyle
@@ -233,9 +273,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Konstantin Levinski
 - Samuel Smith
 
----
-
-### $10+ via Patreon
+<h2 align="center">Backers via Patreon</h2>
 
 - Sylvain Pollet-Villard
 - Luca Borghini
@@ -409,6 +447,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Alexander Karelas
 - Matias Verdier
 
-## Backers via [OpenCollective](https://opencollective.com/vuejs#backer)
+<h2 align="center">Backers via OpenCollective</h2>
 
 <a href="https://opencollective.com/vuejs#backers" target="_blank"><img src="https://opencollective.com/vuejs/backers.svg?width=890"></a>

From ed88ac411403782bb0e249a9bad73c2174c27c5e Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Thu, 14 Sep 2017 21:37:53 +0900
Subject: [PATCH 082/911] docs(packages): fix syntax (#6600)

---
 packages/vue-template-compiler/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index e12c289102e..9ca3bcd74e1 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -51,6 +51,7 @@ The optional `options` object can contain the following:
       test (node, directiveMeta) {
         // transform node based on directiveMeta
       }
+    }
   })
   ```
 

From 5376dab415591011f6a9650a06e224fab4614af4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Sep 2017 09:00:00 -0400
Subject: [PATCH 083/911] chore: fix bronze sponsors

---
 BACKERS.md | 60 +++++++++++++++++++++++++++---------------------------
 1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index dcbdb810cad..e62f8e09dff 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -227,36 +227,36 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Bronze via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/sponsor/0/avatar.svg"></a>
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From 0c9534ff0069b5289ea9598bcb4f5e5ac346c979 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Sep 2017 09:50:33 -0400
Subject: [PATCH 084/911] fix(ssr): fix bundleRenderer Promise rejection
 regression

---
 .../bundle-renderer/create-bundle-runner.js   |  4 ++--
 test/ssr/fixtures/promise-rejection.js        |  3 +++
 test/ssr/ssr-bundle-render.spec.js            | 19 +++++++++++++++++++
 3 files changed, 24 insertions(+), 2 deletions(-)
 create mode 100644 test/ssr/fixtures/promise-rejection.js

diff --git a/src/server/bundle-renderer/create-bundle-runner.js b/src/server/bundle-renderer/create-bundle-runner.js
index b5594a8b2a0..dd1e5373937 100644
--- a/src/server/bundle-renderer/create-bundle-runner.js
+++ b/src/server/bundle-renderer/create-bundle-runner.js
@@ -106,7 +106,7 @@ export function createBundleRunner (entry, files, basedir, runInNewContext) {
     // slightly differently.
     let runner // lazy creation so that errors can be caught by user
     let initialContext
-    return (userContext = {}) => new Promise(resolve => {
+    return (userContext = {}) => new Promise((resolve, reject) => {
       if (!runner) {
         const sandbox = runInNewContext === 'once'
           ? createSandbox()
@@ -143,7 +143,7 @@ export function createBundleRunner (entry, files, basedir, runInNewContext) {
 
       const res = runner(userContext)
       if (typeof res.then === 'function') {
-        res.then(exposeStylesAndResolve)
+        res.then(exposeStylesAndResolve).catch(reject)
       } else {
         exposeStylesAndResolve(res)
       }
diff --git a/test/ssr/fixtures/promise-rejection.js b/test/ssr/fixtures/promise-rejection.js
new file mode 100644
index 00000000000..40dcccf3dd1
--- /dev/null
+++ b/test/ssr/fixtures/promise-rejection.js
@@ -0,0 +1,3 @@
+export default () => {
+  return Promise.reject(new Error('foo'))
+}
diff --git a/test/ssr/ssr-bundle-render.spec.js b/test/ssr/ssr-bundle-render.spec.js
index 0c0343f43c1..6b9588e926a 100644
--- a/test/ssr/ssr-bundle-render.spec.js
+++ b/test/ssr/ssr-bundle-render.spec.js
@@ -75,6 +75,15 @@ function createAssertions (runInNewContext) {
     })
   })
 
+  it('renderToString catch Promise rejection', done => {
+    createRenderer('promise-rejection.js', { runInNewContext }, renderer => {
+      renderer.renderToString(err => {
+        expect(err.message).toBe('foo')
+        done()
+      })
+    })
+  })
+
   it('renderToStream catch error', done => {
     createRenderer('error.js', { runInNewContext }, renderer => {
       const stream = renderer.renderToStream()
@@ -85,6 +94,16 @@ function createAssertions (runInNewContext) {
     })
   })
 
+  it('renderToStream catch Promise rejection', done => {
+    createRenderer('error.js', { runInNewContext }, renderer => {
+      const stream = renderer.renderToStream()
+      stream.on('error', err => {
+        expect(err.message).toBe('foo')
+        done()
+      })
+    })
+  })
+
   it('render with cache (get/set)', done => {
     const cache = {}
     const get = jasmine.createSpy('get')

From a2f73f2c2e28771e6597334bd86f82851ce0955e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Sep 2017 10:54:59 -0400
Subject: [PATCH 085/911] fix(ssr): fix style injection regression

fix #6603, (regression caused by attempt to fix #6353)
---
 .../bundle-renderer/create-bundle-runner.js   | 30 +++++++++----------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/src/server/bundle-renderer/create-bundle-runner.js b/src/server/bundle-renderer/create-bundle-runner.js
index dd1e5373937..a0e1d283aa1 100644
--- a/src/server/bundle-renderer/create-bundle-runner.js
+++ b/src/server/bundle-renderer/create-bundle-runner.js
@@ -106,7 +106,7 @@ export function createBundleRunner (entry, files, basedir, runInNewContext) {
     // slightly differently.
     let runner // lazy creation so that errors can be caught by user
     let initialContext
-    return (userContext = {}) => new Promise((resolve, reject) => {
+    return (userContext = {}) => new Promise(resolve => {
       if (!runner) {
         const sandbox = runInNewContext === 'once'
           ? createSandbox()
@@ -126,27 +126,25 @@ export function createBundleRunner (entry, files, basedir, runInNewContext) {
         }
       }
       userContext._registeredComponents = new Set()
+
       // vue-style-loader styles imported outside of component lifecycle hooks
       if (initialContext._styles) {
         userContext._styles = deepClone(initialContext._styles)
-      }
-      // #6353 after the app is resolved, if the userContext doesn't have a
-      // styles property, it means the app doesn't have any lifecycle-injected
-      // styles, so vue-style-loader never defined the styles getter.
-      // just expose the same styles from the initialContext.
-      const exposeStylesAndResolve = app => {
-        if (!userContext.hasOwnProperty('styles')) {
-          userContext.styles = initialContext.styles
+        // #6353 ensure "styles" is exposed even if no styles are injected
+        // in component lifecycles.
+        // the renderStyles fn is exposed by vue-style-loader >= 3.0.3
+        const renderStyles = initialContext._renderStyles
+        if (renderStyles) {
+          Object.defineProperty(userContext, 'styles', {
+            enumerable: true,
+            get () {
+              return renderStyles(userContext._styles)
+            }
+          })
         }
-        resolve(app)
       }
 
-      const res = runner(userContext)
-      if (typeof res.then === 'function') {
-        res.then(exposeStylesAndResolve).catch(reject)
-      } else {
-        exposeStylesAndResolve(res)
-      }
+      resolve(runner(userContext))
     })
   }
 }

From a32490f27dbc2994c456e2c9ab183630d3b42a21 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Sep 2017 11:32:40 -0400
Subject: [PATCH 086/911] build: build 2.4.4

---
 dist/vue.common.js                            |    4 +-
 dist/vue.esm.js                               |    4 +-
 dist/vue.js                                   |    4 +-
 dist/vue.min.js                               |    4 +-
 dist/vue.runtime.common.js                    |    4 +-
 dist/vue.runtime.esm.js                       |    4 +-
 dist/vue.runtime.js                           |    4 +-
 dist/vue.runtime.min.js                       |    4 +-
 packages/vue-server-renderer/build.js         |   30 +-
 .../vue-server-renderer/package-lock.json     | 7495 +++++++++++++++++
 packages/vue-server-renderer/package.json     |    2 +-
 packages/vue-template-compiler/package.json   |    2 +-
 packages/weex-template-compiler/build.js      |  154 +-
 13 files changed, 7633 insertions(+), 82 deletions(-)
 create mode 100644 packages/vue-server-renderer/package-lock.json

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 931f3341280..b184f1287d3 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4724,7 +4724,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.3';
+Vue$3.version = '2.4.4';
 
 /*  */
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 9f2dc381ee4..0306cc9d4a0 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4722,7 +4722,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.3';
+Vue$3.version = '2.4.4';
 
 /*  */
 
diff --git a/dist/vue.js b/dist/vue.js
index 4451bc60d0e..0b3bb9c3045 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4713,7 +4713,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.3';
+Vue$3.version = '2.4.4';
 
 /*  */
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index a1cb37de6f4..63ce8086ccf 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function i(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function o(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===hi.call(t)}function s(t){return"[object RegExp]"===hi.call(t)}function c(t){var e=parseFloat(t);return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function p(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 1c3b88e8513..68f1d59ff08 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4720,7 +4720,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.3';
+Vue$3.version = '2.4.4';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 71c675b0c56..7dcbfe91207 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4718,7 +4718,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.3';
+Vue$3.version = '2.4.4';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 7a07cc363f4..cf4eceaf20d 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4709,7 +4709,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.3';
+Vue$3.version = '2.4.4';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 89f7927008e..7e8ba21e38a 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.4.3
+ * Vue.js v2.4.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index e9df5b13394..e88cc9e42ef 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -7833,27 +7833,25 @@ function createBundleRunner (entry, files, basedir, runInNewContext) {
         }
       }
       userContext._registeredComponents = new Set();
+
       // vue-style-loader styles imported outside of component lifecycle hooks
       if (initialContext._styles) {
         userContext._styles = deepClone(initialContext._styles);
-      }
-      // #6353 after the app is resolved, if the userContext doesn't have a
-      // styles property, it means the app doesn't have any lifecycle-injected
-      // styles, so vue-style-loader never defined the styles getter.
-      // just expose the same styles from the initialContext.
-      var exposeStylesAndResolve = function (app) {
-        if (!userContext.hasOwnProperty('styles')) {
-          userContext.styles = initialContext.styles;
+        // #6353 ensure "styles" is exposed even if no styles are injected
+        // in component lifecycles.
+        // the renderStyles fn is exposed by vue-style-loader >= 3.0.3
+        var renderStyles = initialContext._renderStyles;
+        if (renderStyles) {
+          Object.defineProperty(userContext, 'styles', {
+            enumerable: true,
+            get: function get () {
+              return renderStyles(userContext._styles)
+            }
+          });
         }
-        resolve(app);
-      };
-
-      var res = runner(userContext);
-      if (typeof res.then === 'function') {
-        res.then(exposeStylesAndResolve);
-      } else {
-        exposeStylesAndResolve(res);
       }
+
+      resolve(runner(userContext));
     });
     }
   }
diff --git a/packages/vue-server-renderer/package-lock.json b/packages/vue-server-renderer/package-lock.json
new file mode 100644
index 00000000000..b95ea91ca36
--- /dev/null
+++ b/packages/vue-server-renderer/package-lock.json
@@ -0,0 +1,7495 @@
+{
+  "name": "vue-server-renderer",
+  "version": "2.4.4",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@types/node": {
+      "version": "7.0.43",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-7.0.43.tgz",
+      "integrity": "sha512-7scYwwfHNppXvH/9JzakbVxk0o0QUILVk1Lv64GRaxwPuGpnF1QBiwdvhDpLcymb8BpomQL3KYoWKq3wUdDMhQ==",
+      "dev": true
+    },
+    "@types/source-map": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/@types/source-map/-/source-map-0.5.1.tgz",
+      "integrity": "sha512-/GVAjL1Y8puvZab63n8tsuBiYwZt1bApMdx58/msQ9ID5T05ov+wm/ZV1DvYC/DKKEygpTJViqQvkh5Rhrl4CA==",
+      "dev": true
+    },
+    "@types/tapable": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/@types/tapable/-/tapable-0.2.4.tgz",
+      "integrity": "sha512-pclMAvhPnXJcJu1ZZ8bQthuUcdDWzDuxDdbSf6l1U6s4fP6EBiZpPsOZYqFOrbqDV97sXGFSsb6AUpiLfv4xIA==",
+      "dev": true
+    },
+    "@types/uglify-js": {
+      "version": "2.6.29",
+      "resolved": "https://registry.npmjs.org/@types/uglify-js/-/uglify-js-2.6.29.tgz",
+      "integrity": "sha512-BdFLCZW0GTl31AbqXSak8ss/MqEZ3DN2MH9rkAyGoTuzK7ifGUlX+u0nfbWeTsa7IPcZhtn8BlpYBXSV+vqGhQ==",
+      "dev": true,
+      "requires": {
+        "@types/source-map": "0.5.1"
+      }
+    },
+    "@types/webpack": {
+      "version": "3.0.10",
+      "resolved": "https://registry.npmjs.org/@types/webpack/-/webpack-3.0.10.tgz",
+      "integrity": "sha512-Xjv1QuWFCVwjxnpcgcdvtR6G4w0tCUpV1Mi5+LPN8w89a/qu8NVbTm1zhD7ZWzvvjE5fMtYNchFHcbjV3u2jyg==",
+      "dev": true,
+      "requires": {
+        "@types/node": "7.0.43",
+        "@types/tapable": "0.2.4",
+        "@types/uglify-js": "2.6.29"
+      }
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+    },
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+              "version": "1.2.1",
+              "bundled": true,
+              "requires": {
+                "readable-stream": "2.3.3"
+              }
+            }
+          }
+        },
+        "test-exclude": {
+          "version": "4.1.1",
+          "bundled": true,
+          "requires": {
+            "arrify": "1.0.1",
+            "micromatch": "2.3.11",
+            "object-assign": "4.1.1",
+            "read-pkg-up": "1.0.1",
+            "require-main-filename": "1.0.1"
+          }
+        },
+        "text-extensions": {
+          "version": "1.5.0",
+          "bundled": true
+        },
+        "text-table": {
+          "version": "0.2.0",
+          "bundled": true
+        },
+        "throttleit": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "through": {
+          "version": "2.3.8",
+          "bundled": true
+        },
+        "through2": {
+          "version": "2.0.3",
+          "bundled": true,
+          "requires": {
+            "readable-stream": "2.3.3",
+            "xtend": "4.0.1"
+          }
+        },
+        "thunkify": {
+          "version": "2.1.2",
+          "bundled": true
+        },
+        "time-stamp": {
+          "version": "2.0.0",
+          "bundled": true
+        },
+        "timers-browserify": {
+          "version": "2.0.4",
+          "bundled": true,
+          "requires": {
+            "setimmediate": "1.0.5"
+          }
+        },
+        "tmp": {
+          "version": "0.0.29",
+          "bundled": true,
+          "requires": {
+            "os-tmpdir": "1.0.2"
+          }
+        },
+        "to-array": {
+          "version": "0.1.4",
+          "bundled": true
+        },
+        "to-arraybuffer": {
+          "version": "1.0.1",
+          "bundled": true
+        },
+        "to-fast-properties": {
+          "version": "1.0.3",
+          "bundled": true
+        },
+        "tough-cookie": {
+          "version": "2.3.2",
+          "bundled": true,
+          "requires": {
+            "punycode": "1.4.1"
+          }
+        },
+        "trim-newlines": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "trim-off-newlines": {
+          "version": "1.0.1",
+          "bundled": true
+        },
+        "trim-right": {
+          "version": "1.0.1",
+          "bundled": true
+        },
+        "tryit": {
+          "version": "1.0.3",
+          "bundled": true
+        },
+        "tty-browserify": {
+          "version": "0.0.0",
+          "bundled": true
+        },
+        "tunnel-agent": {
+          "version": "0.6.0",
+          "bundled": true,
+          "requires": {
+            "safe-buffer": "5.1.1"
+          }
+        },
+        "tweetnacl": {
+          "version": "0.14.5",
+          "bundled": true,
+          "optional": true
+        },
+        "type-check": {
+          "version": "0.3.2",
+          "bundled": true,
+          "requires": {
+            "prelude-ls": "1.1.2"
+          }
+        },
+        "type-detect": {
+          "version": "0.1.1",
+          "bundled": true
+        },
+        "type-is": {
+          "version": "1.6.15",
+          "bundled": true,
+          "requires": {
+            "media-typer": "0.3.0",
+            "mime-types": "2.1.16"
+          }
+        },
+        "typedarray": {
+          "version": "0.0.6",
+          "bundled": true
+        },
+        "typescript": {
+          "version": "2.5.2",
+          "bundled": true
+        },
+        "uglify-js": {
+          "version": "3.0.28",
+          "bundled": true,
+          "requires": {
+            "commander": "2.11.0",
+            "source-map": "0.5.7"
+          }
+        },
+        "uglify-to-browserify": {
+          "version": "1.0.2",
+          "bundled": true,
+          "optional": true
+        },
+        "ultron": {
+          "version": "1.0.2",
+          "bundled": true
+        },
+        "underscore.string": {
+          "version": "3.3.4",
+          "bundled": true,
+          "requires": {
+            "sprintf-js": "1.0.3",
+            "util-deprecate": "1.0.2"
+          }
+        },
+        "union": {
+          "version": "0.4.6",
+          "bundled": true,
+          "requires": {
+            "qs": "2.3.3"
+          },
+          "dependencies": {
+            "qs": {
+              "version": "2.3.3",
+              "bundled": true
+            }
+          }
+        },
+        "unpipe": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "url": {
+          "version": "0.11.0",
+          "bundled": true,
+          "requires": {
+            "punycode": "1.3.2",
+            "querystring": "0.2.0"
+          },
+          "dependencies": {
+            "punycode": {
+              "version": "1.3.2",
+              "bundled": true
+            }
+          }
+        },
+        "url-join": {
+          "version": "2.0.2",
+          "bundled": true
+        },
+        "urlgrey": {
+          "version": "0.4.0",
+          "bundled": true,
+          "requires": {
+            "tape": "2.3.0"
+          }
+        },
+        "user-home": {
+          "version": "2.0.0",
+          "bundled": true,
+          "requires": {
+            "os-homedir": "1.0.2"
+          }
+        },
+        "useragent": {
+          "version": "2.2.1",
+          "bundled": true,
+          "requires": {
+            "lru-cache": "2.2.4",
+            "tmp": "0.0.29"
+          },
+          "dependencies": {
+            "lru-cache": {
+              "version": "2.2.4",
+              "bundled": true
+            }
+          }
+        },
+        "util": {
+          "version": "0.10.3",
+          "bundled": true,
+          "requires": {
+            "inherits": "2.0.1"
+          },
+          "dependencies": {
+            "inherits": {
+              "version": "2.0.1",
+              "bundled": true
+            }
+          }
+        },
+        "util-deprecate": {
+          "version": "1.0.2",
+          "bundled": true
+        },
+        "utils-merge": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "uuid": {
+          "version": "3.1.0",
+          "bundled": true
+        },
+        "validate-npm-package-license": {
+          "version": "3.0.1",
+          "bundled": true,
+          "requires": {
+            "spdx-correct": "1.0.2",
+            "spdx-expression-parse": "1.0.4"
+          }
+        },
+        "vargs": {
+          "version": "0.1.0",
+          "bundled": true
+        },
+        "verror": {
+          "version": "1.10.0",
+          "bundled": true,
+          "requires": {
+            "assert-plus": "1.0.0",
+            "core-util-is": "1.0.2",
+            "extsprintf": "1.3.0"
+          },
+          "dependencies": {
+            "assert-plus": {
+              "version": "1.0.0",
+              "bundled": true
+            }
+          }
+        },
+        "vlq": {
+          "version": "0.2.2",
+          "bundled": true
+        },
+        "vm-browserify": {
+          "version": "0.0.4",
+          "bundled": true,
+          "requires": {
+            "indexof": "0.0.1"
+          }
+        },
+        "void-elements": {
+          "version": "2.0.1",
+          "bundled": true
+        },
+        "walkdir": {
+          "version": "0.0.11",
+          "bundled": true
+        },
+        "watchpack": {
+          "version": "1.4.0",
+          "bundled": true,
+          "requires": {
+            "async": "2.5.0",
+            "chokidar": "1.7.0",
+            "graceful-fs": "4.1.11"
+          },
+          "dependencies": {
+            "async": {
+              "version": "2.5.0",
+              "bundled": true,
+              "requires": {
+                "lodash": "4.17.4"
+              }
+            }
+          }
+        },
+        "wd": {
+          "version": "1.4.0",
+          "bundled": true,
+          "requires": {
+            "archiver": "1.3.0",
+            "async": "2.0.1",
+            "lodash": "4.16.2",
+            "mkdirp": "0.5.1",
+            "q": "1.4.1",
+            "request": "2.79.0",
+            "underscore.string": "3.3.4",
+            "vargs": "0.1.0"
+          },
+          "dependencies": {
+            "async": {
+              "version": "2.0.1",
+              "bundled": true,
+              "requires": {
+                "lodash": "4.16.2"
+              }
+            },
+            "caseless": {
+              "version": "0.11.0",
+              "bundled": true
+            },
+            "har-validator": {
+              "version": "2.0.6",
+              "bundled": true,
+              "requires": {
+                "chalk": "1.1.3",
+                "commander": "2.11.0",
+                "is-my-json-valid": "2.16.1",
+                "pinkie-promise": "2.0.1"
+              }
+            },
+            "lodash": {
+              "version": "4.16.2",
+              "bundled": true
+            },
+            "q": {
+              "version": "1.4.1",
+              "bundled": true
+            },
+            "qs": {
+              "version": "6.3.2",
+              "bundled": true
+            },
+            "request": {
+              "version": "2.79.0",
+              "bundled": true,
+              "requires": {
+                "aws-sign2": "0.6.0",
+                "aws4": "1.6.0",
+                "caseless": "0.11.0",
+                "combined-stream": "1.0.5",
+                "extend": "3.0.1",
+                "forever-agent": "0.6.1",
+                "form-data": "2.1.4",
+                "har-validator": "2.0.6",
+                "hawk": "3.1.3",
+                "http-signature": "1.1.1",
+                "is-typedarray": "1.0.0",
+                "isstream": "0.1.2",
+                "json-stringify-safe": "5.0.1",
+                "mime-types": "2.1.16",
+                "oauth-sign": "0.8.2",
+                "qs": "6.3.2",
+                "stringstream": "0.0.5",
+                "tough-cookie": "2.3.2",
+                "tunnel-agent": "0.4.3",
+                "uuid": "3.1.0"
+              }
+            },
+            "tunnel-agent": {
+              "version": "0.4.3",
+              "bundled": true
+            }
+          }
+        },
+        "webpack": {
+          "version": "2.7.0",
+          "bundled": true,
+          "requires": {
+            "acorn": "5.1.1",
+            "acorn-dynamic-import": "2.0.2",
+            "ajv": "4.11.8",
+            "ajv-keywords": "1.5.1",
+            "async": "2.5.0",
+            "enhanced-resolve": "3.4.1",
+            "interpret": "1.0.3",
+            "json-loader": "0.5.7",
+            "json5": "0.5.1",
+            "loader-runner": "2.3.0",
+            "loader-utils": "0.2.17",
+            "memory-fs": "0.4.1",
+            "mkdirp": "0.5.1",
+            "node-libs-browser": "2.0.0",
+            "source-map": "0.5.7",
+            "supports-color": "3.2.3",
+            "tapable": "0.2.8",
+            "uglify-js": "2.8.29",
+            "watchpack": "1.4.0",
+            "webpack-sources": "1.0.1",
+            "yargs": "6.6.0"
+          },
+          "dependencies": {
+            "acorn": {
+              "version": "5.1.1",
+              "bundled": true
+            },
+            "async": {
+              "version": "2.5.0",
+              "bundled": true,
+              "requires": {
+                "lodash": "4.17.4"
+              }
+            },
+            "camelcase": {
+              "version": "1.2.1",
+              "bundled": true
+            },
+            "loader-utils": {
+              "version": "0.2.17",
+              "bundled": true,
+              "requires": {
+                "big.js": "3.1.3",
+                "emojis-list": "2.1.0",
+                "json5": "0.5.1",
+                "object-assign": "4.1.1"
+              }
+            },
+            "supports-color": {
+              "version": "3.2.3",
+              "bundled": true,
+              "requires": {
+                "has-flag": "1.0.0"
+              }
+            },
+            "uglify-js": {
+              "version": "2.8.29",
+              "bundled": true,
+              "requires": {
+                "source-map": "0.5.7",
+                "uglify-to-browserify": "1.0.2",
+                "yargs": "3.10.0"
+              },
+              "dependencies": {
+                "yargs": {
+                  "version": "3.10.0",
+                  "bundled": true,
+                  "requires": {
+                    "camelcase": "1.2.1",
+                    "cliui": "2.1.0",
+                    "decamelize": "1.2.0",
+                    "window-size": "0.1.0"
+                  }
+                }
+              }
+            },
+            "yargs": {
+              "version": "6.6.0",
+              "bundled": true,
+              "requires": {
+                "camelcase": "3.0.0",
+                "cliui": "3.2.0",
+                "decamelize": "1.2.0",
+                "get-caller-file": "1.0.2",
+                "os-locale": "1.4.0",
+                "read-pkg-up": "1.0.1",
+                "require-directory": "2.1.1",
+                "require-main-filename": "1.0.1",
+                "set-blocking": "2.0.0",
+                "string-width": "1.0.2",
+                "which-module": "1.0.0",
+                "y18n": "3.2.1",
+                "yargs-parser": "4.2.1"
+              },
+              "dependencies": {
+                "camelcase": {
+                  "version": "3.0.0",
+                  "bundled": true
+                },
+                "cliui": {
+                  "version": "3.2.0",
+                  "bundled": true,
+                  "requires": {
+                    "string-width": "1.0.2",
+                    "strip-ansi": "3.0.1",
+                    "wrap-ansi": "2.1.0"
+                  }
+                }
+              }
+            }
+          }
+        },
+        "webpack-dev-middleware": {
+          "version": "1.12.0",
+          "bundled": true,
+          "requires": {
+            "memory-fs": "0.4.1",
+            "mime": "1.4.0",
+            "path-is-absolute": "1.0.1",
+            "range-parser": "1.2.0",
+            "time-stamp": "2.0.0"
+          },
+          "dependencies": {
+            "mime": {
+              "version": "1.4.0",
+              "bundled": true
+            }
+          }
+        },
+        "webpack-sources": {
+          "version": "1.0.1",
+          "bundled": true,
+          "requires": {
+            "source-list-map": "2.0.0",
+            "source-map": "0.5.7"
+          }
+        },
+        "weex-js-runtime": {
+          "version": "0.20.9",
+          "bundled": true
+        },
+        "weex-vdom-tester": {
+          "version": "0.2.0",
+          "bundled": true,
+          "requires": {
+            "jsonp": "0.2.1",
+            "xhr2": "0.1.4"
+          }
+        },
+        "which": {
+          "version": "1.3.0",
+          "bundled": true,
+          "requires": {
+            "isexe": "2.0.0"
+          }
+        },
+        "which-module": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "window-size": {
+          "version": "0.1.0",
+          "bundled": true
+        },
+        "word-wrap": {
+          "version": "1.2.3",
+          "bundled": true
+        },
+        "wordwrap": {
+          "version": "0.0.3",
+          "bundled": true
+        },
+        "wrap-ansi": {
+          "version": "2.1.0",
+          "bundled": true,
+          "requires": {
+            "string-width": "1.0.2",
+            "strip-ansi": "3.0.1"
+          }
+        },
+        "wrappy": {
+          "version": "1.0.2",
+          "bundled": true
+        },
+        "write": {
+          "version": "0.2.1",
+          "bundled": true,
+          "requires": {
+            "mkdirp": "0.5.1"
+          }
+        },
+        "ws": {
+          "version": "1.1.2",
+          "bundled": true,
+          "requires": {
+            "options": "0.0.6",
+            "ultron": "1.0.2"
+          }
+        },
+        "wtf-8": {
+          "version": "1.0.0",
+          "bundled": true
+        },
+        "xhr2": {
+          "version": "0.1.4",
+          "bundled": true
+        },
+        "xmlhttprequest-ssl": {
+          "version": "1.5.3",
+          "bundled": true
+        },
+        "xregexp": {
+          "version": "2.0.0",
+          "bundled": true
+        },
+        "xtend": {
+          "version": "4.0.1",
+          "bundled": true
+        },
+        "y18n": {
+          "version": "3.2.1",
+          "bundled": true
+        },
+        "yallist": {
+          "version": "2.1.2",
+          "bundled": true
+        },
+        "yargs": {
+          "version": "3.10.0",
+          "bundled": true,
+          "optional": true,
+          "requires": {
+            "camelcase": "1.2.1",
+            "cliui": "2.1.0",
+            "decamelize": "1.2.0",
+            "window-size": "0.1.0"
+          },
+          "dependencies": {
+            "camelcase": {
+              "version": "1.2.1",
+              "bundled": true,
+              "optional": true
+            }
+          }
+        },
+        "yargs-parser": {
+          "version": "4.2.1",
+          "bundled": true,
+          "requires": {
+            "camelcase": "3.0.0"
+          },
+          "dependencies": {
+            "camelcase": {
+              "version": "3.0.0",
+              "bundled": true
+            }
+          }
+        },
+        "yauzl": {
+          "version": "2.4.1",
+          "bundled": true,
+          "requires": {
+            "fd-slicer": "1.0.1"
+          }
+        },
+        "yeast": {
+          "version": "0.1.2",
+          "bundled": true
+        },
+        "zip-stream": {
+          "version": "1.2.0",
+          "bundled": true,
+          "requires": {
+            "archiver-utils": "1.3.0",
+            "compress-commons": "1.2.0",
+            "lodash": "4.17.4",
+            "readable-stream": "2.3.3"
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 21fb02a338c..bfac83ff077 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.4.3",
+  "version": "2.4.4",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 79d07f94230..0c90b42f677 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.4.3",
+  "version": "2.4.4",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "repository": {
diff --git a/packages/weex-template-compiler/build.js b/packages/weex-template-compiler/build.js
index e590d002c7d..218fbf40053 100644
--- a/packages/weex-template-compiler/build.js
+++ b/packages/weex-template-compiler/build.js
@@ -235,29 +235,14 @@ var isNonPhrasingTag = makeMap(
  */
 
 // Regular Expressions for parsing tags and attributes
-var singleAttrIdentifier = /([^\s"'<>/=]+)/;
-var singleAttrAssign = /(?:=)/;
-var singleAttrValues = [
-  // attr value double quotes
-  /"([^"]*)"+/.source,
-  // attr value, single quotes
-  /'([^']*)'+/.source,
-  // attr value, no quotes
-  /([^\s"'=<>`]+)/.source
-];
-var attribute = new RegExp(
-  '^\\s*' + singleAttrIdentifier.source +
-  '(?:\\s*(' + singleAttrAssign.source + ')' +
-  '\\s*(?:' + singleAttrValues.join('|') + '))?'
-);
-
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
 // but for Vue templates we can enforce a simple charset
 var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
-var startTagOpen = new RegExp('^<' + qnameCapture);
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!--/;
 var conditionalComment = /^<!\[/;
@@ -653,6 +638,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -662,23 +649,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -1055,7 +1049,7 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
 var supportsPassive = false;
@@ -1137,13 +1131,13 @@ var nextTick = (function () {
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
     MutationObserver.toString() === '[object MutationObserverConstructor]'
   )) {
     // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
+    // e.g. PhantomJS, iOS7, Android 4.4
     var counter = 1;
     var observer = new MutationObserver(nextTickHandler);
     var textNode = document.createTextNode(String(counter));
@@ -1387,7 +1381,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -1395,6 +1389,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -1523,11 +1521,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
+        closeElement(element);
       }
     },
 
@@ -1541,7 +1535,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -1573,11 +1567,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -1743,6 +1738,8 @@ function processSlot (el) {
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      addAttr(el, 'slot', slotTarget);
     }
     if (el.tag === 'template') {
       el.slotScope = getAndRemoveAttr(el, 'scope');
@@ -1821,8 +1818,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -2408,9 +2405,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -2566,7 +2563,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -2817,7 +2814,7 @@ function genOnce (el, state) {
       );
       return genElement(el, state)
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + (key ? ("," + key) : "") + ")")
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
     return genStatic(el, state)
   }
@@ -3477,7 +3474,7 @@ function parseStaticClass (staticClass, options) {
       var result = parseText(name, options.delimiters);
       if (result) {
         dynamic = true;
-        return result
+        return result.expression
       }
       return JSON.stringify(name)
     });
@@ -3549,7 +3546,7 @@ function parseStaticStyle (staticStyle, options) {
       var dynamicValue = parseText(value, options.delimiters);
       if (dynamicValue) {
         dynamic = true;
-        return key + ':' + dynamicValue
+        return key + ':' + dynamicValue.expression
       }
       return key + ':' + JSON.stringify(value)
     }).filter(function (result) { return result; });
@@ -3619,7 +3616,63 @@ var append = {
   genData: genData$3
 };
 
+/*  */
+
+function genText$1 (node) {
+  var value = node.type === 3
+    ? node.text
+    : node.type === 2
+      ? node.tokens.length === 1
+        ? node.tokens[0]
+        : node.tokens
+      : '';
+  return JSON.stringify(value)
+}
+
+function transformText (el) {
+  // weex <text> can only contain text, so the parser
+  // always generates a single child.
+  addAttr(el, 'value', genText$1(el.children[0]));
+  el.children = [];
+  el.plain = false;
+}
+
+/*  */
+
+var currentRecycleList = null;
+
+function preTransformNode$1 (el) {
+  if (el.tag === 'recycle-list') {
+    currentRecycleList = el;
+  }
+}
+
+function transformNode$3 (el) {
+  if (currentRecycleList) {
+    // TODO
+  }
+}
+
+function postTransformNode (el) {
+  if (currentRecycleList) {
+    // <text>: transform children text into value attr
+    if (el.tag === 'text') {
+      transformText(el);
+    }
+  }
+  if (el === currentRecycleList) {
+    currentRecycleList = null;
+  }
+}
+
+var recycleList = {
+  preTransformNode: preTransformNode$1,
+  transformNode: transformNode$3,
+  postTransformNode: postTransformNode
+};
+
 var modules = [
+  recycleList,
   klass,
   style,
   props,
@@ -3669,21 +3722,26 @@ var directives = {
 
 var isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
-  'a,div,img,image,text,span,richtext,input,switch,textarea,spinner,select,' +
-  'slider,slider-neighbor,indicator,trisition,trisition-group,canvas,' +
+  'a,div,img,image,text,span,input,switch,textarea,spinner,select,' +
+  'slider,slider-neighbor,indicator,canvas,' +
   'list,cell,header,loading,loading-indicator,refresh,scrollable,scroller,' +
   'video,web,embed,tabbar,tabheader,datepicker,timepicker,marquee,countdown',
   true
 );
 
 // Elements that you can, intentionally, leave open (and which close themselves)
-// more flexable than web
+// more flexible than web
 var canBeLeftOpenTag$1 = makeMap(
   'web,spinner,switch,video,textarea,canvas,' +
   'indicator,marquee,countdown',
   true
 );
 
+var isRuntimeComponent = makeMap(
+  'richtext,trisition,trisition-group',
+  true
+);
+
 var isUnaryTag$1 = makeMap(
   'embed,img,image,input,link,meta',
   true

From 94512f3e8cee4030a1096121700ed49afab48073 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Sep 2017 11:32:41 -0400
Subject: [PATCH 087/911] build: release 2.4.4

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9acde46f1e9..6b5f0267552 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.4.3",
+  "version": "2.4.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 4345ada9ad4..f3139641e87 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.4.3",
+  "version": "2.4.4",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From b080a14138262f0f274d0888555a11bd7387d576 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Sep 2017 12:25:22 -0400
Subject: [PATCH 088/911] fix(ssr): fix hydration mismatch with adjacent text
 node from slots

fix vuejs/vue-loader#974
---
 src/core/vdom/helpers/normalize-children.js   | 19 +++++++++++++------
 .../unit/modules/vdom/patch/hydration.spec.js | 19 +++++++++++++++++++
 2 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-children.js b/src/core/vdom/helpers/normalize-children.js
index 16810844973..d0010c92ca8 100644
--- a/src/core/vdom/helpers/normalize-children.js
+++ b/src/core/vdom/helpers/normalize-children.js
@@ -42,20 +42,27 @@ function isTextNode (node): boolean {
 
 function normalizeArrayChildren (children: any, nestedIndex?: string): Array<VNode> {
   const res = []
-  let i, c, last
+  let i, c, lastIndex, last
   for (i = 0; i < children.length; i++) {
     c = children[i]
     if (isUndef(c) || typeof c === 'boolean') continue
-    last = res[res.length - 1]
+    lastIndex = res.length - 1
+    last = res[lastIndex]
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`))
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`)
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]: any).text)
+        c.shift()
+      }
+      res.push.apply(res, c)
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last: any).text += String(c)
+        res[lastIndex] = createTextVNode(last.text + c)
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c))
@@ -63,7 +70,7 @@ function normalizeArrayChildren (children: any, nestedIndex?: string): Array<VNo
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text)
+        res[lastIndex] = createTextVNode(last.text + c.text)
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
diff --git a/test/unit/modules/vdom/patch/hydration.spec.js b/test/unit/modules/vdom/patch/hydration.spec.js
index 976ae069847..c0e2a48c14e 100644
--- a/test/unit/modules/vdom/patch/hydration.spec.js
+++ b/test/unit/modules/vdom/patch/hydration.spec.js
@@ -323,4 +323,23 @@ describe('vdom patch: hydration', () => {
 
     expect('not matching server-rendered content').toHaveBeenWarned()
   })
+
+  it('should hydrate with adjacent text nodes from array children (e.g. slots)', () => {
+    const dom = createMockSSRDOM('<div>foo</div> hello')
+
+    new Vue({
+      template: `<test>hello</test>`,
+      components: {
+        test: {
+          template: `
+            <div>
+              <div>foo</div>
+              <slot/>
+            </div>
+          `
+        }
+      }
+    }).$mount(dom)
+    expect('not matching server-rendered content').not.toHaveBeenWarned()
+  })
 })

From 8164ce6169851d673ed0904289ece4c22ca20e95 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Sep 2017 12:49:02 -0400
Subject: [PATCH 089/911] chore: update sponsors

---
 BACKERS.md | 5 +++++
 README.md  | 8 +++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/BACKERS.md b/BACKERS.md
index e62f8e09dff..cf434b62aae 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -104,6 +104,11 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="100px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://www.frontenddevelopermeetups.com/" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-meetups.png">
+        </a>
+      </td>
     </tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 98f1651f20e..9eaabd5d446 100644
--- a/README.md
+++ b/README.md
@@ -111,7 +111,13 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         <a href="https://www.xfive.co/" target="_blank">
           <img width="80px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
         </a>
-     </tr>
+      </td>
+      <td align="center" valign="middle">
+        <a href="http://www.frontenddevelopermeetups.com/" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-meetups.png">
+        </a>
+      </td>
+    </tr>
   </tbody>
 </table>
 

From 4459b87de902cf3ba496a104304ca80d1c9824c1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 15 Sep 2017 10:16:39 -0400
Subject: [PATCH 090/911] fix(core): avoid observing VNodes

fix #6610
---
 src/core/observer/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 7fc8a633cda..11de2d89f79 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -1,6 +1,7 @@
 /* @flow */
 
 import Dep from './dep'
+import VNode from '../vdom/vnode'
 import { arrayMethods } from './array'
 import {
   def,
@@ -104,7 +105,7 @@ function copyAugment (target: Object, src: Object, keys: Array<string>) {
  * or the existing observer if the value already has one.
  */
 export function observe (value: any, asRootData: ?boolean): Observer | void {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   let ob: Observer | void

From a9b6bc42fdafd87a0ac1b61644aae1b427c58ea0 Mon Sep 17 00:00:00 2001
From: Lukas Drgon <lukas.drgon@gmail.com>
Date: Mon, 18 Sep 2017 15:47:13 +0200
Subject: [PATCH 091/911] chore: set jsDelivr default file (#6618)

---
 package.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package.json b/package.json
index f3139641e87..bd1247a848f 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",
   "unpkg": "dist/vue.js",
+  "jsdelivr": "dist/vue.js",
   "typings": "types/index.d.ts",
   "files": [
     "src",

From a5939032de5f85e1994d2ecb5f8905c545a9e769 Mon Sep 17 00:00:00 2001
From: Ryo Shibayama <j02521@gmail.com>
Date: Mon, 18 Sep 2017 23:09:22 +0900
Subject: [PATCH 092/911] ci: migrate to CircleCI 2.0 (#6627)

Improves upon #6041
---
 .circleci/config.yml | 83 ++++++++++++++++++++++++++++++++++++++++++++
 build/ci.sh          |  7 ----
 circle.yml           |  7 ----
 3 files changed, 83 insertions(+), 14 deletions(-)
 create mode 100644 .circleci/config.yml
 delete mode 100644 build/ci.sh
 delete mode 100644 circle.yml

diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 00000000000..265da7245ae
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,83 @@
+version: 2
+
+defaults: &defaults
+  working_directory: ~/project/vue
+  docker:
+    - image: circleci/node:6-browsers
+
+jobs:
+  install:
+    <<: *defaults
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
+            - v1-vue-{{ .Branch }}-
+            - v1-vue-
+      - run:
+          name: Install Dependencies
+          command: npm install
+      - save_cache:
+          key: v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
+          paths:
+            - node_modules/
+      - persist_to_workspace:
+          root: ~/project
+          paths:
+            - vue
+
+  lint-flow-types:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: ~/project
+      - run: npm run lint
+      - run: node_modules/.bin/flow check
+      - run: npm run test:types
+
+  test-cover:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: ~/project
+      - run: npm run test:cover
+      - run:
+         name: report coverage stats for non-PRs
+         command: |
+           if [[ -z $CI_PULL_REQUEST ]]; then
+             cat ./coverage/lcov.info | ./node_modules/.bin/codecov
+           fi
+
+  test-e2e:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: ~/project
+      - run: npm run test:e2e -- --env phantomjs
+
+  test-ssr-weex:
+    <<: *defaults
+    steps:
+      - attach_workspace:
+          at: ~/project
+      - run: npm run test:ssr
+      - run: npm run test:weex
+
+workflows:
+  version: 2
+  install-and-parallel-test:
+    jobs:
+      - install
+      - test-cover:
+          requires:
+            - install
+      - lint-flow-types:
+          requires:
+            - install
+      - test-e2e:
+          requires:
+            - install
+      - test-ssr-weex:
+          requires:
+            - install
diff --git a/build/ci.sh b/build/ci.sh
deleted file mode 100644
index 344a2a4890c..00000000000
--- a/build/ci.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-set -e
-npm test
-
-# report coverage stats for non-PRs
-if [[ -z $CI_PULL_REQUEST ]]; then
-  cat ./coverage/lcov.info | ./node_modules/.bin/codecov
-fi
diff --git a/circle.yml b/circle.yml
deleted file mode 100644
index 77f24195de0..00000000000
--- a/circle.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-machine:
-  node:
-    version: 6
-
-test:
-  override:
-    - bash build/ci.sh

From 4441e0f9d16e924f409a3711140932c50590ced6 Mon Sep 17 00:00:00 2001
From: ULIVZ <472590061@qq.com>
Date: Mon, 18 Sep 2017 23:32:04 +0800
Subject: [PATCH 093/911] chore: correct the contributor link in
 CONTRIBUTING.md (#6621)

---
 .github/CONTRIBUTING.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 64d5347242d..f4d0520131a 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -138,4 +138,4 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 Thank you to all the people who have already contributed to vuejs!
 
-<a href="graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
+<a href="https://github.com/vuejs/vue/graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>

From 2deda3d4328eb7aea0adb0eaf01d68537ed0e0af Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Tue, 19 Sep 2017 03:38:27 +0800
Subject: [PATCH 094/911] refactor(weex): Adjust the weex platform entry file
 to fit the new weex runtime (#6620)

* trim trailing whitespace

* revert(weex): remove the new Function hack for V8, as Weex uses JSC now

Remove the `callFunctionNative` method and `compileBundle`, which is provided by modified V8. In
order to maintain the consistency of the js engine, Weex also use JSC on Android. The legacy hack
for V8 engine should be removed.

* refactor(weex): move module and component apis to weex runtime

Modules and components should be registered in weex runtime, not the specific framework. The
`registerModules`, `registerComponents`, `weex.supports` and `weex.requireModule` api is moved to
weex runtime, which is in the "apache/incubator-weex" repo.

* test(weex): refactor the test cases to fit the new weex-js-runtime

* fix(weex): use document instead of renderer to create Element
---
 build/config.js                               |   2 +-
 package.json                                  |   3 +-
 src/platforms/weex/entry-framework.js         | 232 +-------
 src/platforms/weex/runtime/node-ops.js        |  14 +-
 src/platforms/weex/util/index.js              |   6 +-
 test/weex/helpers/index.js                    |  79 ++-
 test/weex/runtime/attrs.spec.js               | 139 ++---
 test/weex/runtime/class.spec.js               | 313 ++++------
 test/weex/runtime/components/richtext.spec.js |  88 ++-
 test/weex/runtime/events.spec.js              | 190 +++---
 test/weex/runtime/framework.spec.js           | 550 +++---------------
 test/weex/runtime/node.spec.js                |  49 +-
 test/weex/runtime/style.spec.js               | 178 +++---
 13 files changed, 525 insertions(+), 1318 deletions(-)

diff --git a/build/config.js b/build/config.js
index 20fefa8506c..5749409daac 100644
--- a/build/config.js
+++ b/build/config.js
@@ -17,7 +17,7 @@ const banner =
 
 const weexFactoryPlugin = {
   intro () {
-    return 'module.exports = function weexFactory (exports, renderer) {'
+    return 'module.exports = function weexFactory (exports, document) {'
   },
   outro () {
     return '}'
diff --git a/package.json b/package.json
index bd1247a848f..04546c1e0ba 100644
--- a/package.json
+++ b/package.json
@@ -122,8 +122,7 @@
     "typescript": "^2.3.4",
     "uglify-js": "^3.0.15",
     "webpack": "^2.6.1",
-    "weex-js-runtime": "^0.20.5",
-    "weex-vdom-tester": "^0.2.0"
+    "weex-js-runtime": "^0.22.0"
   },
   "config": {
     "commitizen": {
diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 90f5f0d81be..9b7c920cfbd 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -1,41 +1,19 @@
-import TextNode from 'weex/runtime/text-node'
-
 // this will be preserved during build
 const VueFactory = require('./factory')
 
 const instances = {}
-const modules = {}
-const components = {}
-
-const renderer = {
-  TextNode,
-  instances,
-  modules,
-  components
-}
 
 /**
- * Prepare framework config, basically about the virtual-DOM and JS bridge.
- * @param {object} cfg
+ * Prepare framework config.
+ * Nothing need to do actually, just an interface provided to weex runtime.
  */
-export function init (cfg) {
-  renderer.Document = cfg.Document
-  renderer.Element = cfg.Element
-  renderer.Comment = cfg.Comment
-  renderer.compileBundle = cfg.compileBundle
-}
+export function init () {}
 
 /**
  * Reset framework config and clear all registrations.
  */
 export function reset () {
   clear(instances)
-  clear(modules)
-  clear(components)
-  delete renderer.Document
-  delete renderer.Element
-  delete renderer.Comment
-  delete renderer.compileBundle
 }
 
 /**
@@ -63,47 +41,31 @@ export function createInstance (
   data,
   env = {}
 ) {
-  // Virtual-DOM object.
-  const document = new renderer.Document(instanceId, config.bundleUrl)
-
+  const weex = env.weex
+  const document = weex.document
   const instance = instances[instanceId] = {
     instanceId, config, data,
     document
   }
 
-  // Prepare native module getter and HTML5 Timer APIs.
-  const moduleGetter = genModuleGetter(instanceId)
-  const timerAPIs = getInstanceTimer(instanceId, moduleGetter)
-
-  // Prepare `weex` instance variable.
-  const weexInstanceVar = {
-    config,
-    document,
-    supports,
-    requireModule: moduleGetter
-  }
-  Object.freeze(weexInstanceVar)
+  const timerAPIs = getInstanceTimer(instanceId, weex.requireModule)
 
   // Each instance has a independent `Vue` module instance
-  const Vue = instance.Vue = createVueModuleInstance(instanceId, moduleGetter)
+  const Vue = instance.Vue = createVueModuleInstance(instanceId, weex)
 
   // The function which create a closure the JS Bundle will run in.
   // It will declare some instance variables like `Vue`, HTML5 Timer APIs etc.
   const instanceVars = Object.assign({
     Vue,
-    weex: weexInstanceVar
+    weex
   }, timerAPIs, env.services)
 
   appCode = `(function(global){ \n${appCode}\n })(Object.create(this))`
 
-  if (!callFunctionNative(instanceVars, appCode)) {
-    // If failed to compile functionBody on native side,
-    // fallback to 'callFunction()'.
-    callFunction(instanceVars, appCode)
-  }
+  callFunction(instanceVars, appCode)
 
   // Send `createFinish` signal to native.
-  instance.document.taskCenter.send('dom', { action: 'createFinish' }, [])
+  document.taskCenter.send('dom', { action: 'createFinish' }, [])
 
   return instance
 }
@@ -118,6 +80,8 @@ export function destroyInstance (instanceId) {
   if (instance && instance.app instanceof instance.Vue) {
     instance.document.destroy()
     instance.app.$destroy()
+    delete instance.document
+    delete instance.app
   }
   delete instances[instanceId]
 }
@@ -200,91 +164,12 @@ export function receiveTasks (id, tasks) {
   return new Error(`invalid instance id "${id}" or tasks`)
 }
 
-/**
- * Register native modules information.
- * @param {object} newModules
- */
-export function registerModules (newModules) {
-  for (const name in newModules) {
-    if (!modules[name]) {
-      modules[name] = {}
-    }
-    newModules[name].forEach(method => {
-      if (typeof method === 'string') {
-        modules[name][method] = true
-      } else {
-        modules[name][method.name] = method.args
-      }
-    })
-  }
-}
-
-/**
- * Check whether the module or the method has been registered.
- * @param {String} module name
- * @param {String} method name (optional)
- */
-export function isRegisteredModule (name, method) {
-  if (typeof method === 'string') {
-    return !!(modules[name] && modules[name][method])
-  }
-  return !!modules[name]
-}
-
-/**
- * Register native components information.
- * @param {array} newComponents
- */
-export function registerComponents (newComponents) {
-  if (Array.isArray(newComponents)) {
-    newComponents.forEach(component => {
-      if (!component) {
-        return
-      }
-      if (typeof component === 'string') {
-        components[component] = true
-      } else if (typeof component === 'object' && typeof component.type === 'string') {
-        components[component.type] = component
-      }
-    })
-  }
-}
-
-/**
- * Check whether the component has been registered.
- * @param {String} component name
- */
-export function isRegisteredComponent (name) {
-  return !!components[name]
-}
-
-/**
- * Detects whether Weex supports specific features.
- * @param {String} condition
- */
-export function supports (condition) {
-  if (typeof condition !== 'string') return null
-
-  const res = condition.match(/^@(\w+)\/(\w+)(\.(\w+))?$/i)
-  if (res) {
-    const type = res[1]
-    const name = res[2]
-    const method = res[4]
-    switch (type) {
-      case 'module': return isRegisteredModule(name, method)
-      case 'component': return isRegisteredComponent(name)
-    }
-  }
-
-  return null
-}
-
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
-function createVueModuleInstance (instanceId, moduleGetter) {
+function createVueModuleInstance (instanceId, weex) {
   const exports = {}
-  VueFactory(exports, renderer)
+  VueFactory(exports, weex.document)
   const Vue = exports.Vue
 
   const instance = instances[instanceId]
@@ -295,7 +180,7 @@ function createVueModuleInstance (instanceId, moduleGetter) {
   const isReservedTag = Vue.config.isReservedTag || (() => false)
   const isRuntimeComponent = Vue.config.isRuntimeComponent || (() => false)
   Vue.config.isReservedTag = name => {
-    return (!isRuntimeComponent(name) && components[name]) ||
+    return (!isRuntimeComponent(name) && weex.supports(`@component/${name}`)) ||
       isReservedTag(name) ||
       weexRegex.test(name)
   }
@@ -307,7 +192,7 @@ function createVueModuleInstance (instanceId, moduleGetter) {
 
   // expose weex native module getter on subVue prototype so that
   // vdom runtime modules can access native modules via vnode.context
-  Vue.prototype.$requireWeexModule = moduleGetter
+  Vue.prototype.$requireWeexModule = weex.requireModule
 
   // Hack `Vue` behavior to handle instance information and data
   // before root component created.
@@ -340,39 +225,6 @@ function createVueModuleInstance (instanceId, moduleGetter) {
   return Vue
 }
 
-/**
- * Generate native module getter. Each native module has several
- * methods to call. And all the behaviors is instance-related. So
- * this getter will return a set of methods which additionally
- * send current instance id to native when called.
- * @param  {string}  instanceId
- * @return {function}
- */
-function genModuleGetter (instanceId) {
-  const instance = instances[instanceId]
-  return function (name) {
-    const nativeModule = modules[name] || []
-    const output = {}
-    for (const methodName in nativeModule) {
-      Object.defineProperty(output, methodName, {
-        enumerable: true,
-        configurable: true,
-        get: function proxyGetter () {
-          return (...args) => {
-            return instance.document.taskCenter.send('module', { module: name, method: methodName }, args)
-          }
-        },
-        set: function proxySetter (val) {
-          if (typeof val === 'function') {
-            return instance.document.taskCenter.send('module', { module: name, method: methodName }, [val])
-          }
-        }
-      })
-    }
-    return output
-  }
-}
-
 /**
  * Generate HTML5 Timer APIs. An important point is that the callback
  * will be converted into callback id when sent to native. So the
@@ -430,55 +282,3 @@ function callFunction (globalObjects, body) {
   const result = new Function(...globalKeys)
   return result(...globalValues)
 }
-
-/**
- * Call a new function generated on the V8 native side.
- *
- * This function helps speed up bundle compiling. Normally, the V8
- * engine needs to download, parse, and compile a bundle on every
- * visit. If 'compileBundle()' is available on native side,
- * the downloading, parsing, and compiling steps would be skipped.
- * @param  {object} globalObjects
- * @param  {string} body
- * @return {boolean}
- */
-function callFunctionNative (globalObjects, body) {
-  if (typeof renderer.compileBundle !== 'function') {
-    return false
-  }
-
-  let fn = void 0
-  let isNativeCompileOk = false
-  let script = '(function ('
-  const globalKeys = []
-  const globalValues = []
-  for (const key in globalObjects) {
-    globalKeys.push(key)
-    globalValues.push(globalObjects[key])
-  }
-  for (let i = 0; i < globalKeys.length - 1; ++i) {
-    script += globalKeys[i]
-    script += ','
-  }
-  script += globalKeys[globalKeys.length - 1]
-  script += ') {'
-  script += body
-  script += '} )'
-
-  try {
-    const weex = globalObjects.weex || {}
-    const config = weex.config || {}
-    fn = renderer.compileBundle(script,
-      config.bundleUrl,
-      config.bundleDigest,
-      config.codeCachePath)
-    if (fn && typeof fn === 'function') {
-      fn(...globalValues)
-      isNativeCompileOk = true
-    }
-  } catch (e) {
-    console.error(e)
-  }
-
-  return isNativeCompileOk
-}
diff --git a/src/platforms/weex/runtime/node-ops.js b/src/platforms/weex/runtime/node-ops.js
index e71e49f62e7..303c81945ee 100755
--- a/src/platforms/weex/runtime/node-ops.js
+++ b/src/platforms/weex/runtime/node-ops.js
@@ -1,22 +1,24 @@
-/* globals renderer */
-// renderer is injected by weex factory wrapper
+/* globals document */
+// document is injected by weex factory wrapper
+
+import TextNode from 'weex/runtime/text-node'
 
 export const namespaceMap = {}
 
 export function createElement (tagName) {
-  return new renderer.Element(tagName)
+  return document.createElement(tagName)
 }
 
 export function createElementNS (namespace, tagName) {
-  return new renderer.Element(namespace + ':' + tagName)
+  return document.createElement(namespace + ':' + tagName)
 }
 
 export function createTextNode (text) {
-  return new renderer.TextNode(text)
+  return new TextNode(text)
 }
 
 export function createComment (text) {
-  return new renderer.Comment(text)
+  return document.createComment(text)
 }
 
 export function insertBefore (node, target, before) {
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index b74949cdd01..05da30e985e 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -1,4 +1,4 @@
-/* globals renderer */
+/* globals document */
 
 import { makeMap } from 'shared/util'
 
@@ -34,8 +34,8 @@ export function getTagNamespace () { /* console.log('getTagNamespace') */ }
 export function isUnknownElement () { /* console.log('isUnknownElement') */ }
 
 export function query (el, document) {
-  // renderer is injected by weex factory wrapper
-  const placeholder = new renderer.Comment('root')
+  // document is injected by weex factory wrapper
+  const placeholder = document.createComment('root')
   placeholder.hasAttribute = placeholder.removeAttribute = function () {} // hack for patch
   document.documentElement.appendChild(placeholder)
   return placeholder
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index 2375cbc61ae..ca4b3436b60 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -1,13 +1,8 @@
-// suppress logs from vdom-tester
-const domModule = require('weex-vdom-tester/lib/modules/dom')
-domModule.updateFinish = domModule.createFinish = domModule.refreshFinish = () => {}
-
 import * as Vue from '../../../packages/weex-vue-framework'
 import { compile } from '../../../packages/weex-template-compiler'
-import { Runtime, Instance } from 'weex-vdom-tester'
-import { init, config } from 'weex-js-runtime'
+import WeexRuntime from 'weex-js-runtime'
 
-init()
+console.debug = () => {}
 
 // http://stackoverflow.com/a/35478115
 const matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g
@@ -27,32 +22,66 @@ function parseStatic (fns) {
   return '[' + fns.map(fn => `function () { ${fn} }`).join(',') + ']'
 }
 
-export function prepareRuntime () {
-  let sendTasksHandler = function () {}
-  config.sendTasks = config.Document.handler = function () {
-    sendTasksHandler.apply(null, arguments)
-  }
-  Vue.init(config)
-  const runtime = new Runtime(Vue)
-  sendTasksHandler = function () {
-    runtime.target.callNative.apply(runtime.target, arguments)
+function isObject (object) {
+  return object !== null && typeof object === 'object'
+}
+
+function isEmptyObject (object) {
+  return isObject(object) && Object.keys(object).length < 1
+}
+
+function omitUseless (object) {
+  if (isObject(object)) {
+    delete object.ref
+    for (const key in object) {
+      if (isEmptyObject(object[key]) || object[key] === undefined) {
+        delete object[key]
+      }
+      omitUseless(object[key])
+    }
   }
-  return runtime
+  return object
 }
 
-export function resetRuntime () {
-  delete config.Document.handler
-  Vue.reset()
+export function getRoot (instance) {
+  return omitUseless(instance.document.body.toJSON())
 }
 
-export function createInstance (runtime, code) {
-  const instance = new Instance(runtime)
-  if (code) {
-    instance.$create(code)
+export function fireEvent (instance, ref, type, event = {}) {
+  const el = instance.document.getRef(ref)
+  if (el) {
+    instance.document.fireEvent(el, type, event = {})
   }
+}
+
+export function createInstance (id, code, ...args) {
+  WeexRuntime.config.frameworks = { Vue }
+  const context = WeexRuntime.init(WeexRuntime.config)
+  context.registerModules({
+    timer: ['setTimeout', 'setInterval']
+  })
+  const instance = context.createInstance(id, `// { "framework": "Vue" }\n${code}`, ...args)
+  instance.$refresh = (data) => context.refreshInstance(id, data)
+  instance.$destroy = () => context.destroyInstance(id)
   return instance
 }
 
+export function compileAndExecute (template, additional = '') {
+  return new Promise(resolve => {
+    const id = String(Date.now() * Math.random())
+    const { render, staticRenderFns } = compile(template)
+    const instance = createInstance(id, `
+      new Vue({
+        el: '#whatever',
+        render: function () { ${render} },
+        staticRenderFns: ${parseStatic(staticRenderFns)},
+        ${additional}
+      })
+    `)
+    setTimeout(() => resolve(instance), 10)
+  })
+}
+
 export function syncPromise (arr) {
   let p = Promise.resolve()
   arr.forEach(item => {
@@ -65,7 +94,7 @@ export function checkRefresh (instance, data, checker) {
   return () => new Promise(res => {
     instance.$refresh(data)
     setTimeout(() => {
-      checker(instance.getRealRoot())
+      checker(getRoot(instance))
       res()
     })
   })
diff --git a/test/weex/runtime/attrs.spec.js b/test/weex/runtime/attrs.spec.js
index f87537ca435..037067ac1a2 100644
--- a/test/weex/runtime/attrs.spec.js
+++ b/test/weex/runtime/attrs.spec.js
@@ -1,75 +1,48 @@
-import {
-  compileAndStringify,
-  prepareRuntime,
-  resetRuntime,
-  createInstance
-} from '../helpers/index'
+import { getRoot, fireEvent, compileAndExecute } from '../helpers/index'
 
 describe('generate attribute', () => {
-  let runtime
-
-  beforeAll(() => {
-    runtime = prepareRuntime()
-  })
-
-  afterAll(() => {
-    resetRuntime()
-    runtime = null
-  })
-
-  it('should be generated', () => {
-    const { render, staticRenderFns } = compileAndStringify(`
+  it('should be generated', (done) => {
+    compileAndExecute(`
       <div>
         <text value="Hello World" style="font-size: 100"></text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        el: 'body'
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        children: [{
+          type: 'text',
+          style: { fontSize: '100' },
+          attr: { value: 'Hello World' }
+        }]
       })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        { type: 'text', style: { fontSize: '100' }, attr: { value: 'Hello World' }}
-      ]
-    })
+      done()
+    }).catch(e => done.fail(e))
   })
 
   it('should be updated', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
+    compileAndExecute(`
       <div @click="foo">
         <text :value="x"></text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: 'Hello World'
-        },
-        methods: {
-          foo: function () {
-            this.x = 'Hello Vue'
-          }
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        el: "body"
+    `, `
+      data: { x: 'Hello World' },
+      methods: {
+        foo: function () {
+          this.x = 'Hello Vue'
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        event: ['click'],
+        children: [
+          { type: 'text', attr: { value: 'Hello World' }}
+        ]
       })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      event: ['click'],
-      children: [
-        { type: 'text', attr: { value: 'Hello World' }}
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+      fireEvent(instance, '_root', 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
         event: ['click'],
         children: [
@@ -77,41 +50,33 @@ describe('generate attribute', () => {
         ]
       })
       done()
-    })
+    }).catch(e => done.fail(e))
   })
 
   it('should be cleared', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
+    compileAndExecute(`
       <div @click="foo">
         <text :value="x"></text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: 'Hello World'
-        },
-        methods: {
-          foo: function () {
-            this.x = ''
-          }
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        el: "body"
+    `, `
+      data: { x: 'Hello World' },
+      methods: {
+        foo: function () {
+          this.x = ''
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        event: ['click'],
+        children: [
+          { type: 'text', attr: { value: 'Hello World' }}
+        ]
       })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      event: ['click'],
-      children: [
-        { type: 'text', attr: { value: 'Hello World' }}
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+      fireEvent(instance, '_root', 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
         event: ['click'],
         children: [
diff --git a/test/weex/runtime/class.spec.js b/test/weex/runtime/class.spec.js
index 95a3fd4c3f8..5809ba75633 100644
--- a/test/weex/runtime/class.spec.js
+++ b/test/weex/runtime/class.spec.js
@@ -1,236 +1,159 @@
-import {
-  compileAndStringify,
-  prepareRuntime,
-  resetRuntime,
-  createInstance
-} from '../helpers/index'
+import { getRoot, fireEvent, compileAndExecute } from '../helpers/index'
 
 describe('generate class', () => {
-  let runtime
-
-  beforeAll(() => {
-    runtime = prepareRuntime()
-  })
-
-  afterAll(() => {
-    resetRuntime()
-    runtime = null
-  })
-
   it('should be generated', () => {
-    const { render, staticRenderFns } = compileAndStringify(`
+    compileAndExecute(`
       <div>
         <text class="a b c">Hello World</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        style: {
-          a: {
-            fontSize: '100'
-          },
-          b: {
-            color: '#ff0000'
-          },
-          c: {
-            fontWeight: 'bold'
-          }
-        },
-        el: 'body'
+    `, `
+      style: {
+        a: { fontSize: '100' },
+        b: { color: '#ff0000' },
+        c: { fontWeight: 'bold' }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        children: [{
+          type: 'text',
+          style: { fontSize: '100', color: '#ff0000', fontWeight: 'bold' },
+          attr: { value: 'Hello World' }
+        }]
       })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        { type: 'text', style: { fontSize: '100', color: '#ff0000', fontWeight: 'bold' }, attr: { value: 'Hello World' }}
-      ]
     })
   })
 
   it('should be updated', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
-      <div>
-        <text :class="['a', x]" @click="foo">Hello World</text>
+    compileAndExecute(`
+      <div @click="foo">
+        <text :class="['a', x]">Hello World</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: 'b'
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        style: {
-          a: {
-            fontSize: '100'
-          },
-          b: {
-            color: '#ff0000'
-          },
-          c: {
-            fontWeight: 'bold'
-          },
-          d: {
-            color: '#0000ff',
-            fontWeight: 'bold'
-          }
-        },
-        methods: {
-          foo: function () {
-            this.x = 'd'
-          }
-        },
-        el: 'body'
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        {
+    `, `
+      data: { x: 'b' },
+      style: {
+        a: { fontSize: '100' },
+        b: { color: '#ff0000' },
+        c: { fontWeight: 'bold' },
+        d: {
+          color: '#0000ff',
+          fontWeight: 'bold'
+        }
+      },
+      methods: {
+        foo: function () {
+          this.x = 'd'
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        event: ['click'],
+        children: [{
           type: 'text',
-          event: ['click'],
           style: { fontSize: '100', color: '#ff0000' },
           attr: { value: 'Hello World' }
-        }
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+        }]
+      })
+      fireEvent(instance, '_root', 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
-        children: [
-          {
-            type: 'text',
-            event: ['click'],
-            style: { fontSize: '100', color: '#0000ff', fontWeight: 'bold' },
-            attr: { value: 'Hello World' }
-          }
-        ]
+        event: ['click'],
+        children: [{
+          type: 'text',
+          style: { fontSize: '100', color: '#0000ff', fontWeight: 'bold' },
+          attr: { value: 'Hello World' }
+        }]
       })
       done()
     })
   })
 
   it('should be applied in order', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
-      <div>
-        <text :class="arr" @click="foo">Hello World</text>
+    compileAndExecute(`
+      <div @click="foo">
+        <text :class="arr">Hello World</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          arr: ['b', 'a']
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        style: {
-          a: {
-            color: '#ff0000'
-          },
-          b: {
-            color: '#00ff00'
-          },
-          c: {
-            color: '#0000ff'
-          }
-        },
-        methods: {
-          foo: function () {
-            this.arr.push('c')
-          }
-        },
-        el: 'body'
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        {
+    `, `
+      data: {
+        arr: ['b', 'a']
+      },
+      style: {
+        a: { color: '#ff0000' },
+        b: { color: '#00ff00' },
+        c: { color: '#0000ff' }
+      },
+      methods: {
+        foo: function () {
+          this.arr.push('c')
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        event: ['click'],
+        children: [{
           type: 'text',
-          event: ['click'],
           style: { color: '#ff0000' },
           attr: { value: 'Hello World' }
-        }
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+        }]
+      })
+      fireEvent(instance, '_root', 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
-        children: [
-          {
-            type: 'text',
-            event: ['click'],
-            style: { color: '#0000ff' },
-            attr: { value: 'Hello World' }
-          }
-        ]
+        event: ['click'],
+        children: [{
+          type: 'text',
+          style: { color: '#0000ff' },
+          attr: { value: 'Hello World' }
+        }]
       })
       done()
     })
   })
 
   it('should be cleared', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
-      <div>
-        <text :class="['a', x]" @click="foo">Hello World</text>
+    compileAndExecute(`
+      <div @click="foo">
+        <text :class="['a', x]">Hello World</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: 'b'
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        style: {
-          a: {
-            fontSize: '100'
-          },
-          b: {
-            color: '#ff0000'
-          },
-          c: {
-            fontWeight: 'bold'
-          }
-        },
-        methods: {
-          foo: function () {
-            this.x = 'c'
-          }
-        },
-        el: 'body'
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        {
+    `, `
+      data: { x: 'b' },
+      style: {
+        a: { fontSize: '100' },
+        b: { color: '#ff0000' },
+        c: { fontWeight: 'bold' }
+      },
+      methods: {
+        foo: function () {
+          this.x = 'c'
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        event: ['click'],
+        children: [{
           type: 'text',
-          event: ['click'],
           style: { fontSize: '100', color: '#ff0000' },
           attr: { value: 'Hello World' }
-        }
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+        }]
+      })
+      fireEvent(instance, '_root', 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
-        children: [
-          {
-            type: 'text',
-            event: ['click'],
-            style: { fontSize: '100', color: '', fontWeight: 'bold' },
-            attr: { value: 'Hello World' }
-          }
-        ]
+        event: ['click'],
+        children: [{
+          type: 'text',
+          style: { fontSize: '100', color: '', fontWeight: 'bold' },
+          attr: { value: 'Hello World' }
+        }]
       })
       done()
     })
diff --git a/test/weex/runtime/components/richtext.spec.js b/test/weex/runtime/components/richtext.spec.js
index 9dd3637548e..e6190b7f655 100644
--- a/test/weex/runtime/components/richtext.spec.js
+++ b/test/weex/runtime/components/richtext.spec.js
@@ -1,13 +1,14 @@
 import {
   compileAndStringify,
-  prepareRuntime,
-  resetRuntime,
+  getRoot,
+  fireEvent,
   createInstance
 } from '../../helpers/index'
 
-function compileSnippet (runtime, snippet, additional) {
+function compileSnippet (snippet, additional) {
   const { render, staticRenderFns } = compileAndStringify(`<div>${snippet}</div>`)
-  const instance = createInstance(runtime, `
+  const id = String(Date.now() * Math.random())
+  const instance = createInstance(id, `
     new Vue({
       el: 'body',
       render: ${render},
@@ -15,23 +16,12 @@ function compileSnippet (runtime, snippet, additional) {
       ${additional}
     })
   `)
-  return instance.getRealRoot().children[0]
+  return getRoot(instance).children[0]
 }
 
 describe('richtext component', () => {
-  let runtime
-
-  beforeAll(() => {
-    runtime = prepareRuntime()
-  })
-
-  afterAll(() => {
-    resetRuntime()
-    runtime = null
-  })
-
   it('with no child', () => {
-    expect(compileSnippet(runtime, `
+    expect(compileSnippet(`
       <richtext></richtext>
     `)).toEqual({
       type: 'richtext'
@@ -39,7 +29,7 @@ describe('richtext component', () => {
   })
 
   it('with single text node', () => {
-    expect(compileSnippet(runtime, `
+    expect(compileSnippet(`
       <richtext>single</richtext>
     `)).toEqual({
       type: 'richtext',
@@ -56,7 +46,7 @@ describe('richtext component', () => {
 
   describe('span', () => {
     it('single node', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span>single</span>
         </richtext>
@@ -74,7 +64,7 @@ describe('richtext component', () => {
     })
 
     it('multiple node', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span>AAA</span>
           <span>BBB</span>
@@ -94,7 +84,7 @@ describe('richtext component', () => {
     })
 
     it('with raw text', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           AAA
           <span>BBB</span>CCC
@@ -123,7 +113,7 @@ describe('richtext component', () => {
 
   describe('a', () => {
     it('single node', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <a href="http://whatever.com"></a>
         </richtext>
@@ -139,7 +129,7 @@ describe('richtext component', () => {
     })
 
     it('multiple node', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <a href="http://a.whatever.com"></a>
           <a href="http://b.whatever.com"></a>
@@ -161,7 +151,7 @@ describe('richtext component', () => {
 
   describe('image', () => {
     it('single node', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <image src="path/to/profile.png"></image>
         </richtext>
@@ -177,7 +167,7 @@ describe('richtext component', () => {
     })
 
     it('multiple node', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <image src="path/to/A.png"></image>
           <image src="path/to/B.png"></image>
@@ -197,7 +187,7 @@ describe('richtext component', () => {
     })
 
     it('with width and height', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <image
             style="width:150px;height:150px;"
@@ -219,7 +209,7 @@ describe('richtext component', () => {
 
   describe('nested', () => {
     it('span', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span>AAA
             <span>
@@ -258,7 +248,7 @@ describe('richtext component', () => {
     })
 
     it('image and a', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span>title</span>
           <a href="http://remote.com/xx.js">
@@ -293,7 +283,7 @@ describe('richtext component', () => {
 
   describe('with styles', () => {
     it('inline', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span style="font-size:16px;color:#FF6600;">ABCD</span>
           <image style="width:33.33px;height:66.67px" src="path/to/A.png"></image>
@@ -315,7 +305,7 @@ describe('richtext component', () => {
     })
 
     it('class list', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <image class="icon" src="path/to/A.png"></image>
           <span class="title large">ABCD</span>
@@ -345,7 +335,7 @@ describe('richtext component', () => {
 
   describe('data binding', () => {
     it('simple', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span>{{name}}</span>
         </richtext>
@@ -361,14 +351,15 @@ describe('richtext component', () => {
     })
 
     it('nested', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span>{{a}}</span>
           <span>{{b}}<span>{{c.d}}</span></span>
           <span>{{e}}</span>
         </richtext>
-      `, `data: { a: 'A', b: 'B', c: { d: 'CD' }, e: 'E' }`))
-      .toEqual({
+      `, `
+        data: { a: 'A', b: 'B', c: { d: 'CD' }, e: 'E' }
+      `)).toEqual({
         type: 'richtext',
         attr: {
           value: [{
@@ -392,7 +383,7 @@ describe('richtext component', () => {
     })
 
     it('update', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span>{{name}}</span>
         </richtext>
@@ -413,7 +404,7 @@ describe('richtext component', () => {
     })
 
     it('attribute', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span :label="label">{{name}}</span>
         </richtext>
@@ -437,7 +428,7 @@ describe('richtext component', () => {
     })
 
     it('update attribute', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span :label="label">{{name}}</span>
         </richtext>
@@ -465,7 +456,7 @@ describe('richtext component', () => {
     })
 
     it('inline style', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span :style="styleObject">ABCD</span>
           <span :style="{ textAlign: align, color: 'red' }">EFGH</span>
@@ -492,7 +483,7 @@ describe('richtext component', () => {
     })
 
     it('class list', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <image :class="classList" src="path/to/A.png"></image>
           <span :class="['title', size]">ABCD</span>
@@ -533,7 +524,7 @@ describe('richtext component', () => {
     })
 
     it('update inline style', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext>
           <span :style="styleObject">ABCD</span>
           <span :style="{ textAlign: align, color: 'red' }">EFGH</span>
@@ -566,7 +557,7 @@ describe('richtext component', () => {
 
   describe('itself', () => {
     it('inline styles', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext style="background-color:red">
           <span>empty</span>
         </richtext>
@@ -583,7 +574,7 @@ describe('richtext component', () => {
     })
 
     it('class list', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext class="title">
           <span class="large">ABCD</span>
         </richtext>
@@ -606,7 +597,7 @@ describe('richtext component', () => {
     })
 
     it('update styles', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <richtext :class="classList" :style="{ backgroundColor: color }">
           <span class="large">ABCD</span>
         </richtext>
@@ -640,7 +631,8 @@ describe('richtext component', () => {
           </richtext>
         </div>
       `)
-      const instance = createInstance(runtime, `
+      const id = String(Date.now() * Math.random())
+      const instance = createInstance(id, `
         new Vue({
           el: 'body',
           render: ${render},
@@ -653,10 +645,10 @@ describe('richtext component', () => {
           }
         })
       `)
-      const richtext = instance.doc.body.children[0]
-      instance.$fireEvent(richtext.ref, 'click', {})
+      const richtext = instance.document.body.children[0]
+      fireEvent(instance, richtext.ref, 'click')
       setTimeout(() => {
-        expect(instance.getRealRoot().children[0]).toEqual({
+        expect(getRoot(instance).children[0]).toEqual({
           type: 'richtext',
           event: ['click'],
           attr: {
@@ -671,7 +663,7 @@ describe('richtext component', () => {
     })
 
     it('v-for', () => {
-      expect(compileSnippet(runtime, `
+      expect(compileSnippet(`
         <div>
           <richtext v-for="k in labels">
             <span>{{k}}</span>
diff --git a/test/weex/runtime/events.spec.js b/test/weex/runtime/events.spec.js
index cad3994cc6e..79ddbdb176e 100644
--- a/test/weex/runtime/events.spec.js
+++ b/test/weex/runtime/events.spec.js
@@ -1,144 +1,98 @@
-import {
-  compileAndStringify,
-  prepareRuntime,
-  resetRuntime,
-  createInstance
-} from '../helpers/index'
+import { getRoot, fireEvent, compileAndStringify, compileAndExecute } from '../helpers/index'
 
 describe('generate events', () => {
-  let runtime
-
-  beforeAll(() => {
-    runtime = prepareRuntime()
-  })
-
-  afterAll(() => {
-    resetRuntime()
-    runtime = null
-  })
-
   it('should be bound and fired for native component', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
-      <div>
-        <text @click="foo">Hello {{x}}</text>
+    compileAndExecute(`
+      <div @click="foo">
+        <text>Hello {{x}}</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: 'World'
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        methods: {
-          foo: function () {
-            this.x = 'Weex'
-          }
-        },
-        el: 'body'
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        {
+    `, `
+      data: { x: 'World' },
+      methods: {
+        foo: function () {
+          this.x = 'Weex'
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        event: ['click'],
+        children: [{
           type: 'text',
-          event: ['click'],
           attr: { value: 'Hello World' }
-        }
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+        }]
+      })
+      fireEvent(instance, '_root', 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
-        children: [
-          {
-            type: 'text',
-            event: ['click'],
-            attr: { value: 'Hello Weex' }
-          }
-        ]
+        event: ['click'],
+        children: [{
+          type: 'text',
+          attr: { value: 'Hello Weex' }
+        }]
       })
       done()
     })
   })
 
   it('should be bound and fired by custom component', (done) => {
-    const subTemplate = compileAndStringify(`<text>Hello {{x}}</text>`)
-    const { render, staticRenderFns } = compileAndStringify(`
+    const { render, staticRenderFns } = compileAndStringify(`<text>Hello {{x}}</text>`)
+    compileAndExecute(`
       <div>
         <text>Hello {{x}}</text>
         <sub @click="foo" @click.native="bar"></sub>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: 'World'
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        components: {
-          sub: {
-            data: function () {
-              return {
-                x: 'Sub'
-              }
-            },
-            render: ${subTemplate.render},
-            staticRenderFns: ${subTemplate.staticRenderFns},
-            created: function () {
-              this.$emit('click')
-            }
-          }
-        },
-        methods: {
-          foo: function () {
-            this.x = 'Foo'
+    `, `
+      data: { x: 'World' },
+      components: {
+        sub: {
+          data: function () {
+            return { x: 'Sub' }
           },
-          bar: function () {
-            this.x = 'Bar'
+          render: ${render},
+          staticRenderFns: ${staticRenderFns},
+          created: function () {
+            this.$emit('click')
           }
+        }
+      },
+      methods: {
+        foo: function () {
+          this.x = 'Foo'
         },
-        el: 'body'
-      })
-    `)
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+        bar: function () {
+          this.x = 'Bar'
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
-        children: [
-          {
-            type: 'text',
-            attr: { value: 'Hello Foo' }
-          },
-          {
-            type: 'text',
-            event: ['click'],
-            attr: { value: 'Hello Sub' }
-          }
-        ]
+        children: [{
+          type: 'text',
+          attr: { value: 'Hello Foo' }
+        }, {
+          type: 'text',
+          event: ['click'],
+          attr: { value: 'Hello Sub' }
+        }]
       })
-
-      instance.$fireEvent(instance.doc.body.children[1].ref, 'click', {})
-      setTimeout(() => {
-        expect(instance.getRealRoot()).toEqual({
-          type: 'div',
-          children: [
-            {
-              type: 'text',
-              attr: { value: 'Hello Bar' }
-            },
-            {
-              type: 'text',
-              event: ['click'],
-              attr: { value: 'Hello Sub' }
-            }
-          ]
-        })
-        done()
+      fireEvent(instance, instance.document.body.children[1].ref, 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        children: [{
+          type: 'text',
+          attr: { value: 'Hello Bar' }
+        }, {
+          type: 'text',
+          event: ['click'],
+          attr: { value: 'Hello Sub' }
+        }]
       })
+      done()
     })
   })
 })
diff --git a/test/weex/runtime/framework.spec.js b/test/weex/runtime/framework.spec.js
index e11edaa3e24..3079c9e0657 100644
--- a/test/weex/runtime/framework.spec.js
+++ b/test/weex/runtime/framework.spec.js
@@ -1,38 +1,10 @@
 import * as framework from '../../../packages/weex-vue-framework'
-import { DEFAULT_ENV, Runtime, Instance } from 'weex-vdom-tester'
-import { config } from 'weex-js-runtime'
-
-import {
-  syncPromise,
-  checkRefresh
-} from '../helpers/index'
-
-let sendTasksHandler = () => {}
-const { Document, Element, Comment } = config
-function sendTasks () {
-  sendTasksHandler.apply(null, arguments)
-}
+import { getRoot, createInstance } from '../helpers/index'
 
 describe('framework APIs', () => {
-  let runtime
-
-  beforeEach(() => {
-    Document.handler = sendTasks
-    framework.init({ Document, Element, Comment, sendTasks })
-    runtime = new Runtime(framework)
-    sendTasksHandler = function () {
-      runtime.target.callNative(...arguments)
-    }
-  })
-
-  afterEach(() => {
-    delete Document.handler
-    framework.reset()
-  })
-
   it('createInstance', () => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
@@ -42,15 +14,15 @@ describe('framework APIs', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{ type: 'text', attr: { value: 'Hello' }}]
     })
   })
 
   it('createInstance with config', () => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
@@ -60,15 +32,18 @@ describe('framework APIs', () => {
         el: "body"
       })
     `, { bundleUrl: 'http://example.com/', a: 1, b: 2 })
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
-      children: [{ type: 'text', attr: { value: '{"bundleUrl":"http://example.com/","a":1,"b":2}' }}]
+      children: [{
+        type: 'text',
+        attr: { value: '{"bundleUrl":"http://example.com/","a":1,"b":2,"env":{}}' }
+      }]
     })
   })
 
   it('createInstance with external data', () => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           a: 1,
@@ -82,15 +57,15 @@ describe('framework APIs', () => {
         el: "body"
       })
     `, undefined, { a: 111 })
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{ type: 'text', attr: { value: '111-2' }}]
     })
   })
 
   it('destroyInstance', (done) => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           x: 'Hello'
@@ -103,32 +78,21 @@ describe('framework APIs', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{ type: 'text', attr: { value: 'Hello' }}]
     })
-
-    syncPromise([
-      checkRefresh(instance, { x: 'World' }, result => {
-        expect(result).toEqual({
-          type: 'div',
-          children: [{ type: 'text', attr: { value: 'World' }}]
-        })
-        framework.destroyInstance(instance.id)
-      }),
-      checkRefresh(instance, { x: 'Weex' }, result => {
-        expect(result).toEqual({
-          type: 'div',
-          children: [{ type: 'text', attr: { value: 'World' }}]
-        })
-        done()
-      })
-    ])
+    instance.$destroy()
+    setTimeout(() => {
+      expect(instance.document).toBeUndefined()
+      expect(instance.app).toBeUndefined()
+      done()
+    }, 0)
   })
 
   it('refreshInstance', (done) => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           x: 'Hello'
@@ -141,37 +105,26 @@ describe('framework APIs', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{ type: 'text', attr: { value: 'Hello' }}]
     })
-
-    framework.refreshInstance(instance.id, { x: 'World' })
+    instance.$refresh({ x: 'World' })
     setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+      expect(getRoot(instance)).toEqual({
         type: 'div',
         children: [{ type: 'text', attr: { value: 'World' }}]
       })
-
-      framework.destroyInstance(instance.id)
-      const result = framework.refreshInstance(instance.id, { x: 'Weex' })
+      instance.$destroy()
+      const result = instance.$refresh({ x: 'World' })
       expect(result instanceof Error).toBe(true)
-      expect(result).toMatch(/refreshInstance/)
-      expect(result).toMatch(/not found/)
-
-      setTimeout(() => {
-        expect(instance.getRealRoot()).toEqual({
-          type: 'div',
-          children: [{ type: 'text', attr: { value: 'World' }}]
-        })
-        done()
-      })
+      done()
     })
   })
 
   it('getRoot', () => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           x: 'Hello'
@@ -185,7 +138,7 @@ describe('framework APIs', () => {
       })
     `)
 
-    let root = framework.getRoot(instance.id)
+    let root = framework.getRoot(id)
     expect(root.ref).toEqual('_root')
     expect(root.type).toEqual('div')
     expect(root.children.length).toEqual(1)
@@ -199,9 +152,10 @@ describe('framework APIs', () => {
     expect(root).toMatch(/not found/)
   })
 
+  // TODO: deprecated, move to weex-js-runtime
   it('receiveTasks: fireEvent', (done) => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           x: 'Hello'
@@ -219,7 +173,7 @@ describe('framework APIs', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{
         type: 'text',
@@ -227,14 +181,12 @@ describe('framework APIs', () => {
         event: ['click']
       }]
     })
-
-    const textRef = framework.getRoot(instance.id).children[0].ref
-    framework.receiveTasks(instance.id, [
+    const textRef = framework.getRoot(id).children[0].ref
+    framework.receiveTasks(id, [
       { method: 'fireEvent', args: [textRef, 'click'] }
     ])
-
     setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+      expect(getRoot(instance)).toEqual({
         type: 'div',
         children: [{
           type: 'text',
@@ -242,271 +194,22 @@ describe('framework APIs', () => {
           event: ['click']
         }]
       })
-
-      framework.destroyInstance(instance.id)
-      const result = framework.receiveTasks(instance.id, [
+      framework.destroyInstance(id)
+      const result = framework.receiveTasks(id, [
         { method: 'fireEvent', args: [textRef, 'click'] }
       ])
       expect(result instanceof Error).toBe(true)
-      expect(result).toMatch(/invalid\sinstance\sid/)
-      expect(result).toMatch(instance.id)
       done()
     })
   })
 
-  it('receiveTasks: callback', (done) => {
-    framework.registerModules({
-      foo: ['a', 'b', 'c']
-    })
-
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
-      const moduleFoo = weex.requireModule('foo')
-      new Vue({
-        data: {
-          x: 'Hello'
-        },
-        methods: {
-          update: function (data = {}) {
-            this.x = data.value || 'World'
-          }
-        },
-        mounted: function () {
-          moduleFoo.a(data => {
-            this.update(data)
-          })
-        },
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: this.x }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [{
-        type: 'text',
-        attr: { value: 'Hello' }
-      }]
-    })
-
-    let callbackId
-    instance.history.callNative.some(task => {
-      if (task.module === 'foo' && task.method === 'a') {
-        callbackId = task.args[0]
-        return true
-      }
-    })
-    framework.receiveTasks(instance.id, [
-      { method: 'callback', args: [callbackId, undefined, true] }
-    ])
-
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
-        type: 'div',
-        children: [{
-          type: 'text',
-          attr: { value: 'World' }
-        }]
-      })
-
-      framework.receiveTasks(instance.id, [
-        { method: 'callback', args: [callbackId, { value: 'Weex' }, true] }
-      ])
-      setTimeout(() => {
-        expect(instance.getRealRoot()).toEqual({
-          type: 'div',
-          children: [{
-            type: 'text',
-            attr: { value: 'Weex' }
-          }]
-        })
-
-        framework.receiveTasks(instance.id, [
-          { method: 'callback', args: [callbackId] }
-        ])
-        setTimeout(() => {
-          expect(instance.getRealRoot()).toEqual({
-            type: 'div',
-            children: [{
-              type: 'text',
-              attr: { value: 'World' }
-            }]
-          })
-
-          framework.destroyInstance(instance.id)
-          const result = framework.receiveTasks(instance.id, [
-            { method: 'callback', args: [callbackId] }
-          ])
-          expect(result instanceof Error).toBe(true)
-          expect(result).toMatch(/invalid\sinstance\sid/)
-          expect(result).toMatch(instance.id)
-          done()
-        })
-      })
-    })
-  })
-
-  it('registerModules', () => {
-    framework.registerModules({
-      foo: ['a', 'b', 'c'],
-      bar: [
-        { name: 'a', args: ['string'] },
-        { name: 'b', args: ['number'] },
-        { name: 'c', args: ['string', 'number'] }
-      ]
-    })
-
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
-      const moduleFoo = weex.requireModule('foo')
-      const moduleBar = weex.requireModule('bar')
-      const moduleBaz = weex.requireModule('baz')
-      new Vue({
-        render: function (createElement) {
-          const value = []
-          if (typeof moduleFoo === 'object') {
-            value.push('foo')
-            value.push(Object.keys(moduleFoo))
-          }
-          if (typeof moduleBar === 'object') {
-            value.push('bar')
-            value.push(Object.keys(moduleBar))
-          }
-          if (typeof moduleBaz === 'object') {
-            value.push('baz')
-            value.push(Object.keys(moduleBaz))
-          }
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: value.toString() }}, [])
-          ])
-        },
-        mounted: function () {
-          moduleFoo.a(1, '2', true)
-          moduleBar.b(1)
-        },
-        el: "body"
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [{
-        type: 'text',
-        attr: { value: 'foo,a,b,c,bar,a,b,c,baz,' }
-      }]
-    })
-
-    expect(instance.history.callNative
-      .filter(task => task.module === 'foo')
-      .map(task => `${task.method}(${task.args})`)
-    ).toEqual(['a(1,2,true)'])
-
-    expect(instance.history.callNative
-      .filter(task => task.module === 'bar')
-      .map(task => `${task.method}(${task.args})`)
-    ).toEqual(['b(1)'])
-  })
-
-  it('isRegisteredModule', () => {
-    framework.registerModules({
-      foo: ['a', 'b'],
-      bar: [
-        { name: 'x', args: ['string'] },
-        { name: 'y', args: ['number'] }
-      ]
-    })
-    expect(framework.isRegisteredModule('foo')).toBe(true)
-    expect(framework.isRegisteredModule('bar')).toBe(true)
-    expect(framework.isRegisteredModule('foo', 'a')).toBe(true)
-    expect(framework.isRegisteredModule('foo', 'b')).toBe(true)
-    expect(framework.isRegisteredModule('bar', 'x')).toBe(true)
-    expect(framework.isRegisteredModule('bar', 'y')).toBe(true)
-    expect(framework.isRegisteredModule('FOO')).toBe(false)
-    expect(framework.isRegisteredModule(' bar ')).toBe(false)
-    expect(framework.isRegisteredModule('unknown')).toBe(false)
-    expect(framework.isRegisteredModule('#}{)=}')).toBe(false)
-    expect(framework.isRegisteredModule('foo', '')).toBe(false)
-    expect(framework.isRegisteredModule('foo', 'c')).toBe(false)
-    expect(framework.isRegisteredModule('bar', 'z')).toBe(false)
-    expect(framework.isRegisteredModule('unknown', 'unknown')).toBe(false)
-  })
-
-  it('registerComponents', () => {
-    framework.registerComponents(['foo', { type: 'bar' }, 'text'])
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
-      new Vue({
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', {}, []),
-            createElement('foo', {}, []),
-            createElement('bar', {}, []),
-            createElement('baz', {}, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [{ type: 'text' }, { type: 'foo' }, { type: 'bar' }, { type: 'baz' }]
-    })
-  })
-
-  it('isRegisteredComponent', () => {
-    framework.registerComponents(['foo', { type: 'bar' }, 'text'])
-    expect(framework.isRegisteredComponent('foo')).toBe(true)
-    expect(framework.isRegisteredComponent('bar')).toBe(true)
-    expect(framework.isRegisteredComponent('text')).toBe(true)
-    expect(framework.isRegisteredComponent('FOO')).toBe(false)
-    expect(framework.isRegisteredComponent(' bar ')).toBe(false)
-    expect(framework.isRegisteredComponent('<text>')).toBe(false)
-    expect(framework.isRegisteredComponent('#}{)=}')).toBe(false)
-  })
-
-  it('weex.supports', () => {
-    framework.registerComponents(['apple', { type: 'banana' }])
-    framework.registerModules({
-      cat: ['eat', 'sleep'],
-      dog: [
-        { name: 'bark', args: ['string'] }
-      ]
-    })
-    expect(framework.supports('@component/apple')).toBe(true)
-    expect(framework.supports('@component/banana')).toBe(true)
-    expect(framework.supports('@module/cat')).toBe(true)
-    expect(framework.supports('@module/cat.eat')).toBe(true)
-    expect(framework.supports('@module/cat.sleep')).toBe(true)
-    expect(framework.supports('@module/dog.bark')).toBe(true)
-    expect(framework.supports('@component/candy')).toBe(false)
-    expect(framework.supports('@module/bird')).toBe(false)
-    expect(framework.supports('@module/bird.sing')).toBe(false)
-    expect(framework.supports('@module/dog.sleep')).toBe(false)
-    expect(framework.supports('apple')).toBe(null)
-    expect(framework.supports('<banana>')).toBe(null)
-    expect(framework.supports('cat')).toBe(null)
-    expect(framework.supports('@dog')).toBe(null)
-    expect(framework.supports('@component/dog#bark')).toBe(null)
-  })
-
   it('vm.$getConfig', () => {
-    const instance = new Instance(runtime)
-    instance.$create(`
-      new Vue({
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: JSON.stringify(this.$getConfig()) }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-    expect(JSON.parse(instance.getRealRoot().children[0].attr.value)).toEqual({ env: DEFAULT_ENV })
-
-    const instance2 = new Instance(runtime)
-    instance2.$create(`
+    const id = String(Date.now() * Math.random())
+    global.WXEnvironment = {
+      weexVersion: '0.10.0',
+      platform: 'Node.js'
+    }
+    const instance = createInstance(id, `
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
@@ -515,143 +218,20 @@ describe('framework APIs', () => {
         },
         el: "body"
       })
-    `, undefined, { a: 1, b: 2 })
-    expect(JSON.parse(instance2.getRealRoot().children[0].attr.value)).toEqual({ a: 1, b: 2, env: DEFAULT_ENV })
-  })
-
-  it('Timer', (done) => {
-    const instance = new Instance(runtime)
-    instance.$create(`
-      new Vue({
-        data: {
-          x: 0,
-          y: 0
-        },
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: this.x + '-' + this.y }}, [])
-          ])
-        },
-        mounted: function () {
-          const now = Date.now()
-          let timer, timer2
-          setTimeout(() => {
-            this.x = 1
-            clearTimeout(timer)
-            clearInterval(timer2)
-            setInterval(() => {
-              this.y++
-            }, 600)
-          }, 2000)
-          timer = setTimeout(() => {
-            this.x = 3
-          }, 3000)
-          setTimeout(() => {
-            this.x = 3
-          }, 4000)
-          timer2 = setInterval(() => {
-            this.y++
-          }, 900)
-        },
-        el: "body"
-      })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [{ type: 'text', attr: { value: '0-0' }}]
-    })
-
-    setTimeout(() => {
-      expect(instance.getRealRoot().children[0].attr.value).toEqual('0-1')
-    }, 950)
-    setTimeout(() => {
-      expect(instance.getRealRoot().children[0].attr.value).toEqual('0-2')
-    }, 1850)
-    setTimeout(() => {
-      expect(instance.getRealRoot().children[0].attr.value).toEqual('1-2')
-    }, 2050)
-    setTimeout(() => {
-      expect(instance.getRealRoot().children[0].attr.value).toEqual('1-3')
-    }, 2650)
-    setTimeout(() => {
-      expect(instance.getRealRoot().children[0].attr.value).toEqual('1-4')
-    }, 3250)
-    setTimeout(() => {
-      framework.destroyInstance(instance.id)
-    }, 3500)
-    setTimeout(() => {
-      expect(instance.getRealRoot().children[0].attr.value).toEqual('1-4')
-      done()
-    }, 4100)
-  })
-
-  it('send function param', () => {
-    framework.registerModules({
-      foo: ['a']
-    })
-
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
-      const moduleFoo = weex.requireModule('foo')
-      new Vue({
-        mounted: function () {
-          moduleFoo.a(a => a + 1)
-        },
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: 'Hello' }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-
-    let callbackId
-    instance.history.callNative.some(task => {
-      if (task.module === 'foo' && task.method === 'a') {
-        callbackId = task.args[0]
-        return true
-      }
-    })
-
-    expect(typeof callbackId).toEqual('string')
-  })
-
-  it('send Element param', () => {
-    framework.registerModules({
-      foo: ['a']
-    })
-
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
-      const moduleFoo = weex.requireModule('foo')
-      new Vue({
-        mounted: function () {
-          moduleFoo.a(this.$refs.x)
-        },
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: 'Hello' }, ref: 'x' }, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-
-    let callbackId
-    instance.history.callNative.some(task => {
-      if (task.module === 'foo' && task.method === 'a') {
-        callbackId = task.args[0]
-        return true
+    `, { bundleUrl: 'http://whatever.com/x.js' })
+    expect(JSON.parse(getRoot(instance).children[0].attr.value)).toEqual({
+      bundleUrl: 'http://whatever.com/x.js',
+      env: {
+        weexVersion: '0.10.0',
+        platform: 'Node.js'
       }
     })
-
-    expect(typeof callbackId).toEqual('string')
+    delete global.WXEnvironment
   })
 
   it('registering global assets', () => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       Vue.component('test', {
         render (h) {
           return h('div', 'Hello')
@@ -664,15 +244,15 @@ describe('framework APIs', () => {
         el: 'body'
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{ type: 'text', attr: { value: 'Hello' }}]
     })
   })
 
   it('adding prototype methods', () => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       Vue.prototype.$test = () => 'Hello'
       const Test = {
         render (h) {
@@ -686,15 +266,15 @@ describe('framework APIs', () => {
         el: 'body'
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{ type: 'text', attr: { value: 'Hello' }}]
     })
   })
 
   it('using global mixins', () => {
-    const instance = new Instance(runtime)
-    framework.createInstance(instance.id, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       Vue.mixin({
         created () {
           this.test = true
@@ -714,7 +294,7 @@ describe('framework APIs', () => {
         el: 'body'
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{ type: 'text', attr: { value: 'Hello' }}]
     })
diff --git a/test/weex/runtime/node.spec.js b/test/weex/runtime/node.spec.js
index e90e96d922d..06a20c63a85 100644
--- a/test/weex/runtime/node.spec.js
+++ b/test/weex/runtime/node.spec.js
@@ -1,26 +1,15 @@
 import {
   compileAndStringify,
-  prepareRuntime,
-  resetRuntime,
   createInstance,
+  getRoot,
   syncPromise,
   checkRefresh
 } from '../helpers/index'
 
 describe('node in render function', () => {
-  let runtime
-
-  beforeAll(() => {
-    runtime = prepareRuntime()
-  })
-
-  afterAll(() => {
-    resetRuntime()
-    runtime = null
-  })
-
   it('should be generated', () => {
-    const instance = createInstance(runtime, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
@@ -30,7 +19,7 @@ describe('node in render function', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [
         { type: 'text', attr: { value: 'Hello' }}
@@ -39,7 +28,8 @@ describe('node in render function', () => {
   })
 
   it('should be generated with all types of text', () => {
-    const instance = createInstance(runtime, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
@@ -51,7 +41,7 @@ describe('node in render function', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [
         { type: 'text', attr: { value: 'Hello' }},
@@ -66,7 +56,8 @@ describe('node in render function', () => {
   })
 
   it('should be generated with module diff', (done) => {
-    const instance = createInstance(runtime, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           counter: 0
@@ -112,7 +103,7 @@ describe('node in render function', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [
         { type: 'text', attr: { value: 'Hello' }}
@@ -157,7 +148,8 @@ describe('node in render function', () => {
   })
 
   it('should be generated with sub components', () => {
-    const instance = createInstance(runtime, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
@@ -178,7 +170,7 @@ describe('node in render function', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [
         { type: 'text', attr: { value: 'Hello' }},
@@ -193,7 +185,8 @@ describe('node in render function', () => {
         <text v-for="item in list" v-if="item.x">{{item.v}}</text>
       </div>
     `)
-    const instance = createInstance(runtime, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           list: [
@@ -228,7 +221,7 @@ describe('node in render function', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [
         { type: 'text', attr: { value: 'Hello' }},
@@ -282,7 +275,8 @@ describe('node in render function', () => {
   })
 
   it('should be generated with node structure diff', (done) => {
-    const instance = createInstance(runtime, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           counter: 0
@@ -334,7 +328,7 @@ describe('node in render function', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [
         { type: 'text', attr: { value: 'Hello' }}
@@ -401,7 +395,8 @@ describe('node in render function', () => {
   })
 
   it('should be generated with component diff', (done) => {
-    const instance = createInstance(runtime, `
+    const id = String(Date.now() * Math.random())
+    const instance = createInstance(id, `
       new Vue({
         data: {
           counter: 0
@@ -462,7 +457,7 @@ describe('node in render function', () => {
         el: "body"
       })
     `)
-    expect(instance.getRealRoot()).toEqual({
+    expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [
         { type: 'text', attr: { value: '111-2' }}
diff --git a/test/weex/runtime/style.spec.js b/test/weex/runtime/style.spec.js
index a8be3e5b3f7..752f57580bd 100644
--- a/test/weex/runtime/style.spec.js
+++ b/test/weex/runtime/style.spec.js
@@ -1,84 +1,58 @@
-import {
-  compileAndStringify,
-  prepareRuntime,
-  resetRuntime,
-  createInstance
-} from '../helpers/index'
+import { getRoot, fireEvent, compileAndExecute } from '../helpers/index'
 
 describe('generate style', () => {
-  let runtime
-
-  beforeAll(() => {
-    runtime = prepareRuntime()
-  })
-
-  afterAll(() => {
-    resetRuntime()
-    runtime = null
-  })
-
   it('should be generated', () => {
-    const { render, staticRenderFns } = compileAndStringify(`
+    compileAndExecute(`
       <div>
         <text style="font-size: 100">Hello World</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        el: 'body'
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        children: [{
+          type: 'text',
+          style: { fontSize: '100' },
+          attr: { value: 'Hello World' }
+        }]
       })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        { type: 'text', style: { fontSize: '100' }, attr: { value: 'Hello World' }}
-      ]
     })
   })
 
   it('should be generated by array binding', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
+    compileAndExecute(`
       <div>
         <text :style="[x, y]" @click="foo">Hello {{z}}</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: { fontSize: 100, color: '#00ff00' },
-          y: { color: '#ff0000', fontWeight: 'bold' },
-          z: 'World'
-        },
-        methods: {
-          foo: function () {
-            this.x.fontSize = 200
-            this.x.color = '#0000ff'
-            Vue.delete(this.y, 'fontWeight')
-            this.z = 'Weex'
+    `, `
+      data: {
+        x: { fontSize: 100, color: '#00ff00' },
+        y: { color: '#ff0000', fontWeight: 'bold' },
+        z: 'World'
+      },
+      methods: {
+        foo: function () {
+          this.x.fontSize = 200
+          this.x.color = '#0000ff'
+          Vue.delete(this.y, 'fontWeight')
+          this.z = 'Weex'
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        children: [
+          {
+            type: 'text',
+            event: ['click'],
+            style: { fontSize: 100, color: '#ff0000', fontWeight: 'bold' },
+            attr: { value: 'Hello World' }
           }
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        el: 'body'
+        ]
       })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        {
-          type: 'text',
-          event: ['click'],
-          style: { fontSize: 100, color: '#ff0000', fontWeight: 'bold' },
-          attr: { value: 'Hello World' }
-        }
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+      fireEvent(instance, instance.document.body.children[0].ref, 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
         children: [
           {
@@ -94,52 +68,46 @@ describe('generate style', () => {
   })
 
   it('should be generated by map binding', (done) => {
-    const { render, staticRenderFns } = compileAndStringify(`
+    compileAndExecute(`
       <div>
         <text :style="{ fontSize: x, color: '#00ff00' }" @click="foo">Hello</text>
         <text :style="y">{{z}}</text>
       </div>
-    `)
-    const instance = createInstance(runtime, `
-      new Vue({
-        data: {
-          x: 100,
-          y: { color: '#ff0000', fontWeight: 'bold' },
-          z: 'World'
-        },
-        methods: {
-          foo: function () {
-            this.x = 200
-            this.y.color = '#0000ff'
-            Vue.delete(this.y, 'fontWeight')
-            this.z = 'Weex'
+    `, `
+      data: {
+        x: 100,
+        y: { color: '#ff0000', fontWeight: 'bold' },
+        z: 'World'
+      },
+      methods: {
+        foo: function () {
+          this.x = 200
+          this.y.color = '#0000ff'
+          Vue.delete(this.y, 'fontWeight')
+          this.z = 'Weex'
+        }
+      }
+    `).then(instance => {
+      expect(getRoot(instance)).toEqual({
+        type: 'div',
+        children: [
+          {
+            type: 'text',
+            event: ['click'],
+            style: { fontSize: 100, color: '#00ff00' },
+            attr: { value: 'Hello' }
+          },
+          {
+            type: 'text',
+            style: { color: '#ff0000', fontWeight: 'bold' },
+            attr: { value: 'World' }
           }
-        },
-        render: ${render},
-        staticRenderFns: ${staticRenderFns},
-        el: 'body'
+        ]
       })
-    `)
-    expect(instance.getRealRoot()).toEqual({
-      type: 'div',
-      children: [
-        {
-          type: 'text',
-          event: ['click'],
-          style: { fontSize: 100, color: '#00ff00' },
-          attr: { value: 'Hello' }
-        },
-        {
-          type: 'text',
-          style: { color: '#ff0000', fontWeight: 'bold' },
-          attr: { value: 'World' }
-        }
-      ]
-    })
-
-    instance.$fireEvent(instance.doc.body.children[0].ref, 'click', {})
-    setTimeout(() => {
-      expect(instance.getRealRoot()).toEqual({
+      fireEvent(instance, instance.document.body.children[0].ref, 'click')
+      return instance
+    }).then(instance => {
+      expect(getRoot(instance)).toEqual({
         type: 'div',
         children: [
           {

From c05e3c1bcab5c02cf75e45e2d14c2947cf65e293 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 25 Sep 2017 10:36:51 -0400
Subject: [PATCH 095/911] chore: update sponsor

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 9eaabd5d446..89fa463b5bd 100644
--- a/README.md
+++ b/README.md
@@ -131,6 +131,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <h4 align="center">Gold</h4>
 
 <a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/bronzesponosr/1/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponosr/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/2/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/3/avatar.svg"></a>

From 924bfec9bcd87ad7be77883d5180613a90d93a4b Mon Sep 17 00:00:00 2001
From: SheetJSDev <dev@sheetjs.com>
Date: Mon, 25 Sep 2017 12:31:27 -0400
Subject: [PATCH 096/911] doc: spelling and formatting (#6681)

---
 benchmarks/ssr/README.md                 | 4 ++--
 packages/vue-template-compiler/README.md | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/benchmarks/ssr/README.md b/benchmarks/ssr/README.md
index 1058bcb2b43..2f0529c1fd8 100644
--- a/benchmarks/ssr/README.md
+++ b/benchmarks/ssr/README.md
@@ -2,9 +2,9 @@
 
 This benchmark renders a table of 1000 rows with 10 columns (10k components), with around 30k normal elements on the page. Note this is not something likely to be seen in a typical app. This benchmark is mostly for stress/regression testing and comparing between `renderToString` and `renderToStream`.
 
-To view the results follow the run section. Note that the overall completion time for the results are variable, this is due to other system related variants at run time (available memory, processing ect). In ideal circumstances both should finish within similar results.
+To view the results follow the run section. Note that the overall completion time for the results are variable, this is due to other system related variants at run time (available memory, processing power, etc). In ideal circumstances both should finish within similar results.
 
-`renderToStream` pipes the content through a stream which provides considerable performance benefits (faster time-to-first-byte and non-event-loop-blocking) over renderToString. This can be observed through the benchmark.
+`renderToStream` pipes the content through a stream which provides considerable performance benefits (faster time-to-first-byte and non-event-loop-blocking) over `renderToString`. This can be observed through the benchmark.
 
 ### run
 
diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index 9ca3bcd74e1..debb92c3650 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -2,7 +2,7 @@
 
 > This package is auto-generated. For pull requests please see [src/platforms/web/entry-compiler.js](https://github.com/vuejs/vue/tree/dev/src/platforms/web/entry-compiler.js).
 
-This package can be used to pre-compile Vue 2.0 templates into render functions to avoid runtime-compilation overhead and CSP restrictions. You will only need it if you are writing build tools with very specific needs. In most cases you should be using [vue-loader](https://github.com/vuejs/vue-loader) or [vueify](https://github.com/vuejs/vueify) instead, both of which use this package internally.
+This package can be used to pre-compile Vue 2.0 templates into render functions to avoid runtime-compilation overhead and CSP restrictions. You will only need it if you are writing build tools with very specific needs. In most cases you should be using [`vue-loader`](https://github.com/vuejs/vue-loader) or [`vueify`](https://github.com/vuejs/vueify) instead, both of which use this package internally.
 
 ## Installation
 
@@ -61,7 +61,7 @@ The optional `options` object can contain the following:
 
 - `preserveWhitespace`
 
-  Defaults to `true`. This means the compiled render function respects all the whitespaces between HTML tags. If set to `false`, all whitespaces between tags will be ignored. This can result in slightly better performance but may affect layout for inline elements.
+  Defaults to `true`. This means the compiled render function preserves all whitespace characters between HTML tags. If set to `false`, whitespace between tags will be ignored. This can result in slightly better performance but may affect layout for inline elements.
 
 ---
 
@@ -86,7 +86,7 @@ This is only useful at runtime with pre-configured builds, so it doesn't accept
 
 Same as `compiler.compile` but generates SSR-specific render function code by optimizing parts of the template into string concatenation in order to improve SSR performance.
 
-This is used by default in `vue-loader@>=12` and can be disabled using the [optimizeSSR](https://vue-loader.vuejs.org/en/options.html#optimizessr) option.
+This is used by default in `vue-loader@>=12` and can be disabled using the [`optimizeSSR`](https://vue-loader.vuejs.org/en/options.html#optimizessr) option.
 
 ---
 

From 78fb66633bb0c873c28582118777dc5611ef237b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 26 Sep 2017 10:21:15 -0400
Subject: [PATCH 097/911] chore: update sponsors (add onsen ui)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index cf434b62aae..c47143ad769 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -109,6 +109,11 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-meetups.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://onsen.io/vue/" target="_blank">
+          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
+        </a>
+      </td>
     </tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 89fa463b5bd..392178567b2 100644
--- a/README.md
+++ b/README.md
@@ -117,6 +117,11 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-meetups.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://onsen.io/vue/" target="_blank">
+          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
+        </a>
+      </td>
     </tr>
   </tbody>
 </table>

From df868c707f6196f84a5cb0c78c7c9a2ba0860fc2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 27 Sep 2017 17:32:44 -0400
Subject: [PATCH 098/911] build: bump flow version

---
 package-lock.json    | 93 ++++++++++++++++----------------------------
 package.json         |  2 +-
 src/core/util/env.js |  5 ++-
 3 files changed, 38 insertions(+), 62 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 6b5f0267552..86fb1f633af 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,16 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "JSONStream": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
+      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
+      "dev": true,
+      "requires": {
+        "jsonparse": "1.3.1",
+        "through": "2.3.8"
+      }
+    },
     "abbrev": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
@@ -2080,8 +2090,8 @@
       "integrity": "sha512-8od6g684Fhi5Vpp4ABRv/RBsW1AY6wSHbJHEK6FGTv+8jvAAnlABniZu/FVmX9TcirkHepaEsa1QGkRvbg0CKw==",
       "dev": true,
       "requires": {
-        "is-text-path": "1.0.1",
         "JSONStream": "1.3.1",
+        "is-text-path": "1.0.1",
         "lodash": "4.17.4",
         "meow": "3.7.0",
         "split2": "2.1.1",
@@ -3402,9 +3412,9 @@
       }
     },
     "flow-bin": {
-      "version": "0.48.0",
-      "resolved": "https://registry.npmjs.org/flow-bin/-/flow-bin-0.48.0.tgz",
-      "integrity": "sha1-ctB1FDUkNY24kBUl48eE3BOnx+4=",
+      "version": "0.54.1",
+      "resolved": "https://registry.npmjs.org/flow-bin/-/flow-bin-0.54.1.tgz",
+      "integrity": "sha1-cQG8zPAG3AZScUqK7wxyB4p2BRA=",
       "dev": true
     },
     "flow-remove-types-no-whitespace": {
@@ -4261,14 +4271,6 @@
             }
           }
         },
-        "string_decoder": {
-          "version": "1.0.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "safe-buffer": "5.0.1"
-          }
-        },
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
@@ -4279,6 +4281,14 @@
             "strip-ansi": "3.0.1"
           }
         },
+        "string_decoder": {
+          "version": "1.0.1",
+          "bundled": true,
+          "dev": true,
+          "requires": {
+            "safe-buffer": "5.0.1"
+          }
+        },
         "stringstream": {
           "version": "0.0.5",
           "bundled": true,
@@ -5470,15 +5480,6 @@
       "integrity": "sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM=",
       "dev": true
     },
-    "jsonp": {
-      "version": "0.2.1",
-      "resolved": "https://registry.npmjs.org/jsonp/-/jsonp-0.2.1.tgz",
-      "integrity": "sha1-pltPoPEL2nGaBUQep7lMVfPhW64=",
-      "dev": true,
-      "requires": {
-        "debug": "2.6.8"
-      }
-    },
     "jsonparse": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-1.3.1.tgz",
@@ -5491,16 +5492,6 @@
       "integrity": "sha1-T9kss04OnbPInIYi7PUfm5eMbLk=",
       "dev": true
     },
-    "JSONStream": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
-      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
-      "dev": true,
-      "requires": {
-        "jsonparse": "1.3.1",
-        "through": "2.3.8"
-      }
-    },
     "jsprim": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -8307,15 +8298,6 @@
         "xtend": "4.0.1"
       }
     },
-    "string_decoder": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true,
-      "requires": {
-        "safe-buffer": "5.1.1"
-      }
-    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -8327,6 +8309,15 @@
         "strip-ansi": "3.0.1"
       }
     },
+    "string_decoder": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
+    },
     "stringstream": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
@@ -9153,21 +9144,11 @@
       }
     },
     "weex-js-runtime": {
-      "version": "0.20.9",
-      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.20.9.tgz",
-      "integrity": "sha512-O6L0nVIfxAEwWanJa6x+DkBZE/7jXSk+eVgRvOVC4Vxj55TQTni8Qq2YTBWjy2dk36+FXWiXNgTcnRcae9z5aA==",
+      "version": "0.22.0",
+      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.22.0.tgz",
+      "integrity": "sha512-NF/QvX9Ms30V/Il76+Jj+ETb+VaSkj8JKWU/HLwXvn/sgy9Z2GvPmJjsf7/Y/xaXgyW0QejN4g5JtHPPTPOUOw==",
       "dev": true
     },
-    "weex-vdom-tester": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/weex-vdom-tester/-/weex-vdom-tester-0.2.0.tgz",
-      "integrity": "sha1-MnOraamcV8klojC0s9C2u666Ih4=",
-      "dev": true,
-      "requires": {
-        "jsonp": "0.2.1",
-        "xhr2": "0.1.4"
-      }
-    },
     "which": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
@@ -9242,12 +9223,6 @@
       "integrity": "sha1-OS2LotDxw00e4tYw8V0O+2jhBIo=",
       "dev": true
     },
-    "xhr2": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.1.4.tgz",
-      "integrity": "sha1-f4dliEdxbbUCYyOBL4GMras4el8=",
-      "dev": true
-    },
     "xmlhttprequest-ssl": {
       "version": "1.5.3",
       "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz",
diff --git a/package.json b/package.json
index 04546c1e0ba..679f85b53a8 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
     "eslint-plugin-jasmine": "^2.2.0",
     "eslint-plugin-vue-libs": "^1.2.0",
     "file-loader": "^0.11.2",
-    "flow-bin": "^0.48.0",
+    "flow-bin": "^0.54.0",
     "hash-sum": "^1.0.2",
     "he": "^1.1.1",
     "http-server": "^0.10.0",
diff --git a/src/core/util/env.js b/src/core/util/env.js
index 5609a247848..0f886150e88 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -86,7 +86,7 @@ export const nextTick = (function () {
   // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
   // completely stops working after triggering a few times... so, if native
   // Promise is available, we will use it:
-  /* istanbul ignore if */
+  /* istanbul ignore if */ // $flow-disable-line
   if (typeof Promise !== 'undefined' && isNative(Promise)) {
     var p = Promise.resolve()
     var logError = err => { console.error(err) }
@@ -141,6 +141,7 @@ export const nextTick = (function () {
       pending = true
       timerFunc()
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise((resolve, reject) => {
         _resolve = resolve
@@ -150,7 +151,7 @@ export const nextTick = (function () {
 })()
 
 let _Set
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set

From 4361a2b3aee55a30e0e6a779c1ef55cdf93a6f52 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 27 Sep 2017 18:05:39 -0400
Subject: [PATCH 099/911] build: bump rollup version

---
 build/build.js    |  16 ++++---
 build/config.js   |  14 +++---
 package-lock.json | 111 +++++++++++++++++++++++++++++++++-------------
 package.json      |  10 ++---
 4 files changed, 103 insertions(+), 48 deletions(-)

diff --git a/build/build.js b/build/build.js
index baa43e3de45..5276f49214a 100644
--- a/build/build.js
+++ b/build/build.js
@@ -14,12 +14,12 @@ let builds = require('./config').getAllBuilds()
 if (process.argv[2]) {
   const filters = process.argv[2].split(',')
   builds = builds.filter(b => {
-    return filters.some(f => b.dest.indexOf(f) > -1)
+    return filters.some(f => b.output.file.indexOf(f) > -1)
   })
 } else {
   // filter out weex builds by default
   builds = builds.filter(b => {
-    return b.dest.indexOf('weex') === -1
+    return b.output.file.indexOf('weex') === -1
   })
 }
 
@@ -41,12 +41,14 @@ function build (builds) {
 }
 
 function buildEntry (config) {
-  const isProd = /min\.js$/.test(config.dest)
+  const output = config.output
+  const { file, banner } = output
+  const isProd = /min\.js$/.test(file)
   return rollup.rollup(config)
-    .then(bundle => bundle.generate(config))
+    .then(bundle => bundle.generate(output))
     .then(({ code }) => {
       if (isProd) {
-        var minified = (config.banner ? config.banner + '\n' : '') + uglify.minify(code, {
+        var minified = (banner ? banner + '\n' : '') + uglify.minify(code, {
           output: {
             ascii_only: true
           },
@@ -54,9 +56,9 @@ function buildEntry (config) {
             pure_funcs: ['makeMap']
           }
         }).code
-        return write(config.dest, minified, true)
+        return write(file, minified, true)
       } else {
-        return write(config.dest, code)
+        return write(file, code)
       }
     })
 }
diff --git a/build/config.js b/build/config.js
index 5749409daac..2fa0291251b 100644
--- a/build/config.js
+++ b/build/config.js
@@ -161,12 +161,8 @@ const builds = {
 
 function genConfig (opts) {
   const config = {
-    entry: opts.entry,
-    dest: opts.dest,
+    input: opts.entry,
     external: opts.external,
-    format: opts.format,
-    banner: opts.banner,
-    moduleName: opts.moduleName || 'Vue',
     plugins: [
       replace({
         __WEEX__: !!opts.weex,
@@ -176,7 +172,13 @@ function genConfig (opts) {
       flow(),
       buble(),
       alias(Object.assign({}, aliases, opts.alias))
-    ].concat(opts.plugins || [])
+    ].concat(opts.plugins || []),
+    output: {
+      file: opts.dest,
+      format: opts.format,
+      banner: opts.banner,
+      name: opts.moduleName || 'Vue'
+    }
   }
 
   if (opts.env) {
diff --git a/package-lock.json b/package-lock.json
index 86fb1f633af..0757ed8bd85 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1263,9 +1263,9 @@
       }
     },
     "buble": {
-      "version": "0.15.2",
-      "resolved": "https://registry.npmjs.org/buble/-/buble-0.15.2.tgz",
-      "integrity": "sha1-VH/EdIP45egXbYKqXrzLGDsC1hM=",
+      "version": "0.16.0",
+      "resolved": "https://registry.npmjs.org/buble/-/buble-0.16.0.tgz",
+      "integrity": "sha512-Eb5vt1+IvXXPyYD1IIQIuaBwIuJOSWQ2kXzULlg5I83aLGF2qzcjRU2joYusnWFgAenvJ9xTOMvZvT0bb8BLbg==",
       "dev": true,
       "requires": {
         "acorn": "3.3.0",
@@ -1274,7 +1274,8 @@
         "chalk": "1.1.3",
         "magic-string": "0.14.0",
         "minimist": "1.2.0",
-        "os-homedir": "1.0.2"
+        "os-homedir": "1.0.2",
+        "vlq": "0.2.2"
       },
       "dependencies": {
         "minimist": {
@@ -7643,13 +7644,10 @@
       }
     },
     "rollup": {
-      "version": "0.45.2",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-0.45.2.tgz",
-      "integrity": "sha512-2+bq5GQSrocdhr+M92mOQRmF1evtLRzv9NdmEC2wo7BILvTG8irHCtD0q+zg8ikNu63iJicdN5IzyxAXRTFKOQ==",
-      "dev": true,
-      "requires": {
-        "source-map-support": "0.4.16"
-      }
+      "version": "0.50.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-0.50.0.tgz",
+      "integrity": "sha512-7RqCBQ9iwsOBPkjYgoIaeUij606mSkDMExP0NT7QDI3bqkHYQHrQ83uoNIXwPcQm/vP2VbsUz3kiyZZ1qPlLTQ==",
+      "dev": true
     },
     "rollup-plugin-alias": {
       "version": "1.3.1",
@@ -7661,25 +7659,62 @@
       }
     },
     "rollup-plugin-babel": {
-      "version": "2.7.1",
-      "resolved": "https://registry.npmjs.org/rollup-plugin-babel/-/rollup-plugin-babel-2.7.1.tgz",
-      "integrity": "sha1-FlKBl7D5OKFTb0RoPHqT1XMYL1c=",
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-babel/-/rollup-plugin-babel-3.0.2.tgz",
+      "integrity": "sha512-ALGPBFtwJZcYHsNPM6RGJlEncTzAARPvZOGjNPZgDe5hS5t6sJGjiOWibEFVEz5LQN7S7spvCBILaS4N1Cql2w==",
       "dev": true,
       "requires": {
-        "babel-core": "6.26.0",
-        "babel-plugin-transform-es2015-classes": "6.24.1",
-        "object-assign": "4.1.1",
         "rollup-pluginutils": "1.5.2"
       }
     },
     "rollup-plugin-buble": {
-      "version": "0.15.0",
-      "resolved": "https://registry.npmjs.org/rollup-plugin-buble/-/rollup-plugin-buble-0.15.0.tgz",
-      "integrity": "sha1-g8PonH/SJmx5GPQbo5gDE1Gcf9A=",
+      "version": "0.16.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-buble/-/rollup-plugin-buble-0.16.0.tgz",
+      "integrity": "sha512-dPIvH9iK9AUGRrqpARL6TTNY85BJpc5OK5PiCAnFaRe7C1boRBVRXiL0SYsYNVnyYYPl6vu0lVSb722eMSw1Eg==",
       "dev": true,
       "requires": {
-        "buble": "0.15.2",
-        "rollup-pluginutils": "1.5.2"
+        "buble": "0.16.0",
+        "rollup-pluginutils": "2.0.1"
+      },
+      "dependencies": {
+        "buble": {
+          "version": "0.16.0",
+          "resolved": "https://registry.npmjs.org/buble/-/buble-0.16.0.tgz",
+          "integrity": "sha512-Eb5vt1+IvXXPyYD1IIQIuaBwIuJOSWQ2kXzULlg5I83aLGF2qzcjRU2joYusnWFgAenvJ9xTOMvZvT0bb8BLbg==",
+          "dev": true,
+          "requires": {
+            "acorn": "3.3.0",
+            "acorn-jsx": "3.0.1",
+            "acorn-object-spread": "1.0.0",
+            "chalk": "1.1.3",
+            "magic-string": "0.14.0",
+            "minimist": "1.2.0",
+            "os-homedir": "1.0.2",
+            "vlq": "0.2.2"
+          }
+        },
+        "estree-walker": {
+          "version": "0.3.1",
+          "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-0.3.1.tgz",
+          "integrity": "sha1-5rGlHPcpJSTnI3wxLl/mZgwc4ao=",
+          "dev": true
+        },
+        "minimist": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "dev": true
+        },
+        "rollup-pluginutils": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/rollup-pluginutils/-/rollup-pluginutils-2.0.1.tgz",
+          "integrity": "sha1-fslbNXP2VDpGpkYb2afFRFJdD8A=",
+          "dev": true,
+          "requires": {
+            "estree-walker": "0.3.1",
+            "micromatch": "2.3.11"
+          }
+        }
       }
     },
     "rollup-plugin-commonjs": {
@@ -7759,24 +7794,40 @@
       }
     },
     "rollup-plugin-replace": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/rollup-plugin-replace/-/rollup-plugin-replace-1.1.1.tgz",
-      "integrity": "sha1-OWMV3tBQps5DuVGKiGo/YO+x6jM=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-replace/-/rollup-plugin-replace-2.0.0.tgz",
+      "integrity": "sha512-pK9mTd/FNrhtBxcTBXoh0YOwRIShV0gGhv9qvUtNcXHxIMRZMXqfiZKVBmCRGp8/2DJRy62z2JUE7/5tP6WxOQ==",
       "dev": true,
       "requires": {
-        "magic-string": "0.15.2",
+        "magic-string": "0.22.4",
         "minimatch": "3.0.4",
-        "rollup-pluginutils": "1.5.2"
+        "rollup-pluginutils": "2.0.1"
       },
       "dependencies": {
+        "estree-walker": {
+          "version": "0.3.1",
+          "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-0.3.1.tgz",
+          "integrity": "sha1-5rGlHPcpJSTnI3wxLl/mZgwc4ao=",
+          "dev": true
+        },
         "magic-string": {
-          "version": "0.15.2",
-          "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.15.2.tgz",
-          "integrity": "sha1-BoHXOIdBu8Ot2qZQYJkmJMbAnpw=",
+          "version": "0.22.4",
+          "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.22.4.tgz",
+          "integrity": "sha512-kxBL06p6iO2qPBHsqGK2b3cRwiRGpnmSuVWNhwHcMX7qJOUr1HvricYP1LZOCdkQBUp0jiWg2d6WJwR3vYgByw==",
           "dev": true,
           "requires": {
             "vlq": "0.2.2"
           }
+        },
+        "rollup-pluginutils": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/rollup-pluginutils/-/rollup-pluginutils-2.0.1.tgz",
+          "integrity": "sha1-fslbNXP2VDpGpkYb2afFRFJdD8A=",
+          "dev": true,
+          "requires": {
+            "estree-walker": "0.3.1",
+            "micromatch": "2.3.11"
+          }
         }
       }
     },
diff --git a/package.json b/package.json
index 679f85b53a8..ce6a20ef99a 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "babel-plugin-transform-vue-jsx": "^3.4.3",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-flow-vue": "^1.0.0",
-    "buble": "^0.15.2",
+    "buble": "^0.16.0",
     "chalk": "^1.1.3",
     "chromedriver": "^2.30.1",
     "codecov.io": "^0.1.6",
@@ -107,14 +107,14 @@
     "nightwatch-helpers": "^1.2.0",
     "phantomjs-prebuilt": "^2.1.14",
     "resolve": "^1.3.3",
-    "rollup": "^0.45.1",
+    "rollup": "^0.50.0",
     "rollup-plugin-alias": "^1.3.1",
-    "rollup-plugin-babel": "^2.7.1",
-    "rollup-plugin-buble": "^0.15.0",
+    "rollup-plugin-babel": "^3.0.2",
+    "rollup-plugin-buble": "^0.16.0",
     "rollup-plugin-commonjs": "^8.0.2",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
     "rollup-plugin-node-resolve": "^3.0.0",
-    "rollup-plugin-replace": "^1.1.1",
+    "rollup-plugin-replace": "^2.0.0",
     "rollup-watch": "^4.0.0",
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",

From 4fd2ce813cd0a59bd544defe07f44a5731e45f84 Mon Sep 17 00:00:00 2001
From: Derek Kent <derek.a.kent@gmail.com>
Date: Thu, 28 Sep 2017 10:53:40 -0400
Subject: [PATCH 100/911] fix: allow an object's Symbols to be observed (#6704)

Attempting to parseFloat on a Symbol throws the error
`Cannot convert a Symbol value to a string`.

A Symbol can be cast to a string using `.toString()` or `String()` though,
so explicitly casting before parsing resolves the issue, allowing `Vue.set` to
be called on Symbols.
---
 src/shared/util.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/shared/util.js b/src/shared/util.js
index 709fe146403..b6b3eb5dcb2 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -56,7 +56,7 @@ export function isRegExp (v: any): boolean {
  * Check if val is a valid array index.
  */
 export function isValidArrayIndex (val: any): boolean {
-  const n = parseFloat(val)
+  const n = parseFloat(String(val))
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 

From 64f9d68844cb6a1569ffe5228ecb753063d3f9ae Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Fri, 29 Sep 2017 13:33:27 -0500
Subject: [PATCH 101/911] refactor: remove unnecessary condition (#6716)

---
 src/platforms/web/runtime/components/transition.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/components/transition.js b/src/platforms/web/runtime/components/transition.js
index 60b434cdced..857c88f35e5 100644
--- a/src/platforms/web/runtime/components/transition.js
+++ b/src/platforms/web/runtime/components/transition.js
@@ -165,7 +165,7 @@ export default {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      const oldData: Object = oldChild && (oldChild.data.transition = extend({}, data))
+      const oldData: Object = oldChild.data.transition = extend({}, data)
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes

From 5fe7dc28d1249737cea57a26d13a9e9342b9007f Mon Sep 17 00:00:00 2001
From: Edd Yerburgh <edward.yerburgh@gmail.com>
Date: Mon, 2 Oct 2017 21:03:32 +0100
Subject: [PATCH 102/911] docs: add types directory to CONTRIBUTING.md (#6731)

---
 .github/CONTRIBUTING.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index f4d0520131a..4f140719553 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -123,6 +123,11 @@ The default test script will do the following: lint with ESLint -> type check wi
 
   - **`shared`**: contains utilities shared across the entire codebase.
 
+  - **`types`**: contains TypeScript type definitions
+
+    - **`test`**: type definitions tests
+
+
 ## Financial Contribution
 
 As a pure community-driven project without major corporate backing, we also welcome financial contributions via Patreon or OpenCollective.

From dd505438296dcbaae74fd28061600cea07cf25c0 Mon Sep 17 00:00:00 2001
From: Meyti <meyt@users.noreply.github.com>
Date: Mon, 2 Oct 2017 23:34:02 +0330
Subject: [PATCH 103/911] docs: typo fix (#6729)

https://github.com/vuejs/vue/blob/94512f3e8cee4030a1096121700ed49afab48073/src/platforms/web/entry-compiler.js#L5
---
 packages/vue-template-compiler/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index debb92c3650..41d9b58b858 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -90,7 +90,7 @@ This is used by default in `vue-loader@>=12` and can be disabled using the [`opt
 
 ---
 
-### compiler.ssrCompileToFunction(template)
+### compiler.ssrCompileToFunctions(template)
 
 > 2.4.0+
 

From 0f2cb09444e8b2a5fa41aaf8c94e6f2f43e00c2f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 2 Oct 2017 17:11:36 -0400
Subject: [PATCH 104/911] fix: work around old Chrome bug

fix #6601
---
 src/platforms/web/runtime/modules/dom-props.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index f2502ac98bb..52235850d7c 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -28,6 +28,11 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
     if (key === 'textContent' || key === 'innerHTML') {
       if (vnode.children) vnode.children.length = 0
       if (cur === oldProps[key]) continue
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0])
+      }
     }
 
     if (key === 'value') {

From 894d380e40d213771285ffdbee8f0305cbc15bd8 Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Tue, 3 Oct 2017 06:16:38 +0900
Subject: [PATCH 105/911] refactor: Improve DevTools perfromance user timing
 measurement name (#6624)

---
 src/core/instance/init.js                        | 4 ++--
 src/core/instance/lifecycle.js                   | 4 ++--
 src/platforms/web/entry-runtime-with-compiler.js | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/core/instance/init.js b/src/core/instance/init.js
index ddf808e4116..f4b4db5742a 100644
--- a/src/core/instance/init.js
+++ b/src/core/instance/init.js
@@ -21,7 +21,7 @@ export function initMixin (Vue: Class<Component>) {
     let startTag, endTag
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = `vue-perf-init:${vm._uid}`
+      startTag = `vue-perf-start:${vm._uid}`
       endTag = `vue-perf-end:${vm._uid}`
       mark(startTag)
     }
@@ -62,7 +62,7 @@ export function initMixin (Vue: Class<Component>) {
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false)
       mark(endTag)
-      measure(`${vm._name} init`, startTag, endTag)
+      measure(`vue ${vm._name} init`, startTag, endTag)
     }
 
     if (vm.$options.el) {
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 768e2e2b54a..fd01d510865 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -176,12 +176,12 @@ export function mountComponent (
       mark(startTag)
       const vnode = vm._render()
       mark(endTag)
-      measure(`${name} render`, startTag, endTag)
+      measure(`vue ${name} render`, startTag, endTag)
 
       mark(startTag)
       vm._update(vnode, hydrating)
       mark(endTag)
-      measure(`${name} patch`, startTag, endTag)
+      measure(`vue ${name} patch`, startTag, endTag)
     }
   } else {
     updateComponent = () => {
diff --git a/src/platforms/web/entry-runtime-with-compiler.js b/src/platforms/web/entry-runtime-with-compiler.js
index 45aa80211d0..5ca67b6e8e2 100644
--- a/src/platforms/web/entry-runtime-with-compiler.js
+++ b/src/platforms/web/entry-runtime-with-compiler.js
@@ -73,7 +73,7 @@ Vue.prototype.$mount = function (
       /* istanbul ignore if */
       if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
         mark('compile end')
-        measure(`${this._name} compile`, 'compile', 'compile end')
+        measure(`vue ${this._name} compile`, 'compile', 'compile end')
       }
     }
   }

From cf1ff5b0dc3d15c1e16821cb5e4fc984c74f07c1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 2 Oct 2017 17:35:47 -0400
Subject: [PATCH 106/911] fix: use correct ns inside <foreignObject> as root
 node

fix #6642
---
 src/core/vdom/create-element.js               |  9 ++++---
 test/unit/modules/vdom/create-element.spec.js | 26 +++++++++++++++++++
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index c9f30d2287e..fd8f853f0bc 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -122,17 +122,18 @@ export function _createElement (
   }
 }
 
-function applyNS (vnode, ns) {
+function applyNS (vnode, ns, force) {
   vnode.ns = ns
   if (vnode.tag === 'foreignObject') {
     // use default namespace inside foreignObject
-    return
+    ns = undefined
+    force = true
   }
   if (isDef(vnode.children)) {
     for (let i = 0, l = vnode.children.length; i < l; i++) {
       const child = vnode.children[i]
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns)
+      if (isDef(child.tag) && (isUndef(child.ns) || force)) {
+        applyNS(child, ns, force)
       }
     }
   }
diff --git a/test/unit/modules/vdom/create-element.spec.js b/test/unit/modules/vdom/create-element.spec.js
index c060343df19..3bec065f312 100644
--- a/test/unit/modules/vdom/create-element.spec.js
+++ b/test/unit/modules/vdom/create-element.spec.js
@@ -141,6 +141,32 @@ describe('create-element', () => {
     expect(vnode.children[0].children[0].ns).toBeUndefined()
   })
 
+  // #6642
+  it('render svg foreignObject component with correct namespace', () => {
+    const vm = new Vue({
+      template: `
+        <svg>
+          <test></test>
+        </svg>
+      `,
+      components: {
+        test: {
+          template: `
+          <foreignObject>
+            <p xmlns="http://www.w3.org/1999/xhtml"></p>
+          </foreignObject>
+          `
+        }
+      }
+    }).$mount()
+    const testComp = vm.$children[0]
+    expect(testComp.$vnode.ns).toBe('svg')
+    expect(testComp._vnode.tag).toBe('foreignObject')
+    expect(testComp._vnode.ns).toBe('svg')
+    expect(testComp._vnode.children[0].tag).toBe('p')
+    expect(testComp._vnode.children[0].ns).toBeUndefined()
+  })
+
   // #6506
   it('render SVGAElement in a component correctly', () => {
     const vm = new Vue({

From f15c56b45c255920433b181c6e21e9cc59f3605e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 2 Oct 2017 17:37:42 -0400
Subject: [PATCH 107/911] refactor: use isTrue

---
 src/core/vdom/create-element.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index fd8f853f0bc..adeac2d61ff 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -132,7 +132,7 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (let i = 0, l = vnode.children.length; i < l; i++) {
       const child = vnode.children[i]
-      if (isDef(child.tag) && (isUndef(child.ns) || force)) {
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
         applyNS(child, ns, force)
       }
     }

From a5e5b31455e0d64f834dd691b7488e0e105d32c3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 2 Oct 2017 18:14:41 -0400
Subject: [PATCH 108/911] feat: add in-browser build for vue-template-compiler

---
 build/config.js                             | 9 +++++++++
 packages/vue-template-compiler/package.json | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/build/config.js b/build/config.js
index 2fa0291251b..6f190dd48ce 100644
--- a/build/config.js
+++ b/build/config.js
@@ -107,6 +107,15 @@ const builds = {
     format: 'cjs',
     external: Object.keys(require('../packages/vue-template-compiler/package.json').dependencies)
   },
+  // Web compiler (UMD for in-browser use).
+  'web-compiler-browser': {
+    entry: resolve('web/entry-compiler.js'),
+    dest: resolve('packages/vue-template-compiler/browser.js'),
+    format: 'umd',
+    env: 'development',
+    moduleName: 'VueTemplateCompiler',
+    plugins: [node(), cjs()]
+  },
   // Web server renderer (CommonJS).
   'web-server-renderer': {
     entry: resolve('web/entry-server-renderer.js'),
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 0c90b42f677..89cb71217db 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -3,6 +3,9 @@
   "version": "2.4.4",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
+  "unpkg": "browser.js",
+  "jsdelivr": "browser.js",
+  "browser": "browser.js",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/vuejs/vue.git"

From c64f9ae1649175ee8cac1c7ecf3283897c948202 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 3 Oct 2017 00:02:27 -0400
Subject: [PATCH 109/911] fix: properly render value on <progress> in IE/Edge

fix #6666
---
 src/platforms/web/runtime/modules/attrs.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index 47371a72a25..317316d8507 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { isIE9 } from 'core/util/env'
+import { isIE9, isEdge } from 'core/util/env'
 
 import {
   extend,
@@ -42,8 +42,9 @@ function updateAttrs (oldVnode: VNodeWithData, vnode: VNodeWithData) {
     }
   }
   // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value)
   }
   for (key in oldAttrs) {

From cf3be87b68260d9d7e9f3480d9aefeb8bad69e2e Mon Sep 17 00:00:00 2001
From: Flavio Corpa <flaviocorpa@gmail.com>
Date: Tue, 3 Oct 2017 17:45:38 +0200
Subject: [PATCH 110/911] refactor: improve error msg for non-reactive
 properties (#6735)

close #6657
---
 src/core/instance/proxy.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/proxy.js b/src/core/instance/proxy.js
index 8e581877bde..2e45f4636a1 100644
--- a/src/core/instance/proxy.js
+++ b/src/core/instance/proxy.js
@@ -15,9 +15,11 @@ if (process.env.NODE_ENV !== 'production') {
 
   const warnNonPresent = (target, key) => {
     warn(
-      `Property or method "${key}" is not defined on the instance but ` +
-      `referenced during render. Make sure to declare reactive data ` +
-      `properties in the data option.`,
+      `Property or method "${key}" is not defined on the instance but` +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property.' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     )
   }

From 093673e308a0cda8c670e2d75275510a395d421f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 3 Oct 2017 15:25:02 -0400
Subject: [PATCH 111/911] chore: update sponsors

---
 BACKERS.md | 9 +++++++++
 README.md  | 6 ++++++
 2 files changed, 15 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index c47143ad769..85d7e3370d1 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -115,6 +115,15 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
     </tr>
+    <tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="http://tooltwist.com/" target="_blank">
+          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist
+          .png">
+        </a>
+      </td>
+    </tr>
   </tbody>
 </table>
 
diff --git a/README.md b/README.md
index 392178567b2..1a958069e44 100644
--- a/README.md
+++ b/README.md
@@ -122,6 +122,12 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://tooltwist.com" target="_blank">
+          <img width="14
+          0px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+        </a>
+      </td>
     </tr>
   </tbody>
 </table>

From c5d0fa0503631b53338e5255bc8640da4b2fd4cb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 3 Oct 2017 17:54:37 -0400
Subject: [PATCH 112/911] feat: make vue and basic server renderer compatible
 in pure js runtimes

---
 src/platforms/web/runtime/index.js           |  2 +-
 src/platforms/web/runtime/transition-util.js |  8 +++++---
 src/server/write.js                          | 19 ++++++++++++++++++-
 3 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/src/platforms/web/runtime/index.js b/src/platforms/web/runtime/index.js
index eb8cd76ccda..3751acecc53 100644
--- a/src/platforms/web/runtime/index.js
+++ b/src/platforms/web/runtime/index.js
@@ -44,7 +44,7 @@ Vue.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-setTimeout(() => {
+Vue.nextTick(() => {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue)
diff --git a/src/platforms/web/runtime/transition-util.js b/src/platforms/web/runtime/transition-util.js
index 661f420d07f..47668f0c37d 100644
--- a/src/platforms/web/runtime/transition-util.js
+++ b/src/platforms/web/runtime/transition-util.js
@@ -58,9 +58,11 @@ if (hasTransition) {
 }
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-const raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout
+const raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ fn => fn()
 
 export function nextFrame (fn: Function) {
   raf(() => {
diff --git a/src/server/write.js b/src/server/write.js
index 854d876b63e..e642081852c 100644
--- a/src/server/write.js
+++ b/src/server/write.js
@@ -1,6 +1,23 @@
 /* @flow */
 
 const MAX_STACK_DEPTH = 1000
+const noop = _ => _
+
+const defer = typeof process !== 'undefined' && process.nextTick
+  ? process.nextTick
+  : typeof Promise !== 'undefined'
+    ? fn => Promise.resolve().then(fn)
+    : typeof setTimeout !== 'undefined'
+      ? setTimeout
+      : noop
+
+if (defer === noop) {
+  throw new Error(
+    'Your JavaScript runtime does not support any asynchronous primitives ' +
+    'that are required by vue-server-renderer. Please use a polyfill for ' +
+    'either Promise or setTimeout.'
+  )
+}
 
 export function createWriteFunction (
   write: (text: string, next: Function) => boolean,
@@ -14,7 +31,7 @@ export function createWriteFunction (
     const waitForNext = write(text, next)
     if (waitForNext !== true) {
       if (stackDepth >= MAX_STACK_DEPTH) {
-        process.nextTick(() => {
+        defer(() => {
           try { next() } catch (e) {
             onError(e)
           }

From baabd6d14016c730fe40a4202ae9b8f75e80041c Mon Sep 17 00:00:00 2001
From: Chris Casola <chriscasola@gmail.com>
Date: Tue, 3 Oct 2017 18:00:52 -0400
Subject: [PATCH 113/911] fix(compiler): warn when inline-template component
 has no children (fix #6703) (#6715)

---
 src/compiler/codegen/index.js              | 2 +-
 test/unit/modules/compiler/codegen.spec.js | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 46c54867bbb..c4c31c20202 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -309,7 +309,7 @@ function genDirectives (el: ASTElement, state: CodegenState): string | void {
 function genInlineTemplate (el: ASTElement, state: CodegenState): ?string {
   const ast = el.children[0]
   if (process.env.NODE_ENV !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.')
   }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 37bcf62a762..8b415a13ebd 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -455,7 +455,14 @@ describe('codegen', () => {
       '<my-component inline-template><hr><hr></my-component>',
       `with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _c('hr')}},staticRenderFns:[]}})}`
     )
+    try {
+      assertCodegen(
+        '<my-component inline-template></my-component>',
+        ''
+      )
+    } catch (e) {}
     expect('Inline-template components must have exactly one child element.').toHaveBeenWarned()
+    expect(console.error.calls.count()).toBe(2)
   })
 
   it('generate static trees inside v-for', () => {

From 6ad44e13e990951ff152a0fd7042613c5a87f1c0 Mon Sep 17 00:00:00 2001
From: AchillesJ <xujiongbo@gmail.com>
Date: Wed, 4 Oct 2017 06:04:23 +0800
Subject: [PATCH 114/911] fix(ref): preserve ref on components after removing
 root element (#6718)

fix #6632, #6641
---
 src/core/vdom/patch.js         |  2 ++
 test/unit/features/ref.spec.js | 14 ++++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 40a4a0ccb45..2918e621b0d 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -697,6 +697,8 @@ export function createPatchFunction (backend) {
                   insert.fns[i]()
                 }
               }
+            } else {
+              registerRef(ancestor)
             }
             ancestor = ancestor.parent
           }
diff --git a/test/unit/features/ref.spec.js b/test/unit/features/ref.spec.js
index f82efe4513a..05efc4d5244 100644
--- a/test/unit/features/ref.spec.js
+++ b/test/unit/features/ref.spec.js
@@ -196,15 +196,25 @@ describe('ref', () => {
     }
   })
 
-  it('should register on component with empty roots', () => {
+  it('should register on component with empty roots', done => {
     const vm = new Vue({
       template: '<child ref="test"></child>',
       components: {
         child: {
-          template: '<div v-if="false"></div>'
+          template: '<div v-if="show"></div>',
+          data () {
+            return { show: false }
+          }
         }
       }
     }).$mount()
     expect(vm.$refs.test).toBe(vm.$children[0])
+    vm.$refs.test.show = true
+    waitForUpdate(() => {
+      expect(vm.$refs.test).toBe(vm.$children[0])
+      vm.$refs.test.show = false
+    }).then(() => {
+      expect(vm.$refs.test).toBe(vm.$children[0])
+    }).then(done)
   })
 })

From ae347a52259b24507a9c747c80d78a6beaa36de0 Mon Sep 17 00:00:00 2001
From: Sam Ruby <rubys@intertwingly.net>
Date: Tue, 3 Oct 2017 18:06:13 -0400
Subject: [PATCH 115/911] fix: ensure nextTick are passed to errorHandler
 (#6730)

---
 src/core/util/env.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index 0f886150e88..57e65b20c54 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -89,7 +89,7 @@ export const nextTick = (function () {
   /* istanbul ignore if */ // $flow-disable-line
   if (typeof Promise !== 'undefined' && isNative(Promise)) {
     var p = Promise.resolve()
-    var logError = err => { console.error(err) }
+    var logError = err => { handleError(err, null, 'nextTick') }
     timerFunc = () => {
       p.then(nextTickHandler).catch(logError)
       // in problematic UIWebViews, Promise.then doesn't completely break, but

From 2b5c83af6d8b15510424af4877d58c261ea02e16 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 3 Oct 2017 18:23:43 -0400
Subject: [PATCH 116/911] fix: handle errors in errorHandler

close #6714
---
 src/core/util/error.js                    | 28 +++++++++++++++--------
 test/unit/features/error-handling.spec.js | 20 +++++++++++++++-
 2 files changed, 37 insertions(+), 11 deletions(-)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index 69d44429467..b961986a585 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -6,16 +6,24 @@ import { inBrowser } from './env'
 
 export function handleError (err: Error, vm: any, info: string) {
   if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info)
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(`Error in ${info}: "${err.toString()}"`, vm)
-    }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err)
-    } else {
-      throw err
+    try {
+      config.errorHandler.call(null, err, vm, info)
+      return
+    } catch (e) {
+      logError(e, null, 'errorHandler')
     }
   }
+  logError(err, vm, info)
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(`Error in ${info}: "${err.toString()}"`, vm)
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err)
+  } else {
+    throw err
+  }
 }
diff --git a/test/unit/features/error-handling.spec.js b/test/unit/features/error-handling.spec.js
index 033f9a3b7d5..5bf05fdb120 100644
--- a/test/unit/features/error-handling.spec.js
+++ b/test/unit/features/error-handling.spec.js
@@ -92,7 +92,7 @@ describe('Error handling', () => {
     }).then(done)
   })
 
-  it('config.errorHandler should capture errors', done => {
+  it('config.errorHandler should capture render errors', done => {
     const spy = Vue.config.errorHandler = jasmine.createSpy('errorHandler')
     const vm = createTestInstance(components.render)
 
@@ -124,6 +124,24 @@ describe('Error handling', () => {
       })
     })
   })
+
+  it('should recover from errors thrown in errorHandler itself', () => {
+    Vue.config.errorHandler = () => {
+      throw new Error('error in errorHandler ¯\\_(ツ)_/¯')
+    }
+    const vm = new Vue({
+      render (h) {
+        throw new Error('error in render')
+      },
+      renderError (h, err) {
+        return h('div', err.toString())
+      }
+    }).$mount()
+    expect('error in errorHandler').toHaveBeenWarned()
+    expect('error in render').toHaveBeenWarned()
+    expect(vm.$el.textContent).toContain('error in render')
+    Vue.config.errorHandler = null
+  })
 })
 
 function createErrorTestComponents () {

From 2431d3d74396b33a2a120a835cfe7a776f06e277 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 3 Oct 2017 22:25:52 -0400
Subject: [PATCH 117/911] chore: fix warning space

---
 src/core/instance/proxy.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/proxy.js b/src/core/instance/proxy.js
index 2e45f4636a1..51c880f3e0a 100644
--- a/src/core/instance/proxy.js
+++ b/src/core/instance/proxy.js
@@ -15,10 +15,10 @@ if (process.env.NODE_ENV !== 'production') {
 
   const warnNonPresent = (target, key) => {
     warn(
-      `Property or method "${key}" is not defined on the instance but` +
+      `Property or method "${key}" is not defined on the instance but ` +
       'referenced during render. Make sure that this property is reactive, ' +
       'either in the data option, or for class-based components, by ' +
-      'initializing the property.' +
+      'initializing the property. ' +
       'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     )

From e1da0d585c797860533d6cb10ea3d09c7fb711fc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 3 Oct 2017 23:30:35 -0400
Subject: [PATCH 118/911] feat(v-model): craete non-existent properties as
 reactive

close #5932
---
 src/compiler/directives/model.js              | 53 ++++++++++++-------
 .../features/directives/model-parse.spec.js   | 22 +++++---
 .../features/directives/model-text.spec.js    | 21 ++++++++
 3 files changed, 69 insertions(+), 27 deletions(-)

diff --git a/src/compiler/directives/model.js b/src/compiler/directives/model.js
index 61fe1d1184e..8c1f55bf663 100644
--- a/src/compiler/directives/model.js
+++ b/src/compiler/directives/model.js
@@ -37,42 +37,57 @@ export function genAssignmentCode (
   value: string,
   assignment: string
 ): string {
-  const modelRs = parseModel(value)
-  if (modelRs.idx === null) {
+  const res = parseModel(value)
+  if (res.key === null) {
     return `${value}=${assignment}`
   } else {
-    return `$set(${modelRs.exp}, ${modelRs.idx}, ${assignment})`
+    return `$set(${res.exp}, ${res.key}, ${assignment})`
   }
 }
 
 /**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
  *
- * for loop possible cases:
+ * Possible cases:
  *
  * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
  *
  */
 
 let len, str, chr, index, expressionPos, expressionEndPos
 
-export function parseModel (val: string): Object {
-  str = val
-  len = str.length
-  index = expressionPos = expressionEndPos = 0
+type ModelParseResult = {
+  exp: string,
+  key: string | null
+}
+
+export function parseModel (val: string): ModelParseResult {
+  len = val.length
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
+    index = val.lastIndexOf('.')
+    if (index > -1) {
+      return {
+        exp: val.slice(0, index),
+        key: '"' + val.slice(index + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
     }
   }
 
+  str = val
+  index = expressionPos = expressionEndPos = 0
+
   while (!eof()) {
     chr = next()
     /* istanbul ignore if */
@@ -84,8 +99,8 @@ export function parseModel (val: string): Object {
   }
 
   return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
   }
 }
 
diff --git a/test/unit/features/directives/model-parse.spec.js b/test/unit/features/directives/model-parse.spec.js
index f653330f0b2..f9c48a65e5f 100644
--- a/test/unit/features/directives/model-parse.spec.js
+++ b/test/unit/features/directives/model-parse.spec.js
@@ -1,33 +1,39 @@
 import { parseModel } from 'compiler/directives/model'
 
 describe('model expression parser', () => {
+  it('parse single path', () => {
+    const res = parseModel('foo')
+    expect(res.exp).toBe('foo')
+    expect(res.key).toBe(null)
+  })
+
   it('parse object dot notation', () => {
     const res = parseModel('a.b.c')
-    expect(res.exp).toBe('a.b.c')
-    expect(res.idx).toBe(null)
+    expect(res.exp).toBe('a.b')
+    expect(res.key).toBe('"c"')
   })
 
   it('parse string in brackets', () => {
     const res = parseModel('a["b"][c]')
     expect(res.exp).toBe('a["b"]')
-    expect(res.idx).toBe('c')
+    expect(res.key).toBe('c')
   })
 
   it('parse brackets with object dot notation', () => {
     const res = parseModel('a["b"][c].xxx')
-    expect(res.exp).toBe('a["b"][c].xxx')
-    expect(res.idx).toBe(null)
+    expect(res.exp).toBe('a["b"][c]')
+    expect(res.key).toBe('"xxx"')
   })
 
   it('parse nested brackets', () => {
     const res = parseModel('a[i[c]]')
     expect(res.exp).toBe('a')
-    expect(res.idx).toBe('i[c]')
+    expect(res.key).toBe('i[c]')
   })
 
   it('combined', () => {
-    const res = parseModel('test.xxx.a["asa"][test1[idx]]')
+    const res = parseModel('test.xxx.a["asa"][test1[key]]')
     expect(res.exp).toBe('test.xxx.a["asa"]')
-    expect(res.idx).toBe('test1[idx]')
+    expect(res.key).toBe('test1[key]')
   })
 })
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 7032574ff56..264bbe91fab 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -354,5 +354,26 @@ describe('Directive v-model text', () => {
         done()
       }, 16)
     })
+
+    it('should create and make reactive non-existent properties', done => {
+      const vm = new Vue({
+        data: {
+          foo: {}
+        },
+        template: '<input v-model="foo.bar">'
+      }).$mount()
+      expect(vm.$el.value).toBe('')
+
+      vm.$el.value = 'a'
+      triggerEvent(vm.$el, 'input')
+      expect(vm.foo.bar).toBe('a')
+      vm.foo.bar = 'b'
+      waitForUpdate(() => {
+        expect(vm.$el.value).toBe('b')
+        vm.foo = {}
+      }).then(() => {
+        expect(vm.$el.value).toBe('')
+      }).then(done)
+    })
   }
 })

From 9734e878ec4efe59f40fc97d9ef86273ad58a430 Mon Sep 17 00:00:00 2001
From: Nick Messing <dot.nick.dot.messing@gmail.com>
Date: Wed, 4 Oct 2017 19:37:00 +0300
Subject: [PATCH 119/911] feat: add .exact event modifier (#5977)

Allow limiting the event to the exact system modifiers specified.
close #5976
---
 src/compiler/codegen/events.js             |  8 ++
 src/core/instance/proxy.js                 |  2 +-
 test/unit/features/directives/on.spec.js   | 94 +++++++++++++++++++++-
 test/unit/modules/compiler/codegen.spec.js |  8 ++
 4 files changed, 109 insertions(+), 3 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 6a64e1a1919..67ae0368b65 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -87,6 +87,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key)
         }
+      } else if (key === 'exact') {
+        const modifiers: ASTModifiers = (handler.modifiers: any)
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(keyModifier => !modifiers[keyModifier])
+            .map(keyModifier => `$event.${keyModifier}Key`)
+            .join('||')
+        )
       } else {
         keys.push(key)
       }
diff --git a/src/core/instance/proxy.js b/src/core/instance/proxy.js
index 51c880f3e0a..7454712f994 100644
--- a/src/core/instance/proxy.js
+++ b/src/core/instance/proxy.js
@@ -29,7 +29,7 @@ if (process.env.NODE_ENV !== 'production') {
     Proxy.toString().match(/native code/)
 
   if (hasProxy) {
-    const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta')
+    const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact')
     config.keyCodes = new Proxy(config.keyCodes, {
       set (target, key, value) {
         if (isBuiltInModifier(key)) {
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index f22a47e9ea7..5dd0f1ce409 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -205,6 +205,96 @@ describe('Directive v-on', () => {
     expect(spy).toHaveBeenCalled()
   })
 
+  // ctrl, shift, alt, meta
+  it('should support system modifers', () => {
+    vm = new Vue({
+      el,
+      template: `
+        <div>
+          <input ref="ctrl" @keyup.ctrl="foo">
+          <input ref="shift" @keyup.shift="foo">
+          <input ref="alt" @keyup.alt="foo">
+          <input ref="meta" @keyup.meta="foo">
+        </div>
+      `,
+      methods: { foo: spy }
+    })
+
+    triggerEvent(vm.$refs.ctrl, 'keyup')
+    expect(spy.calls.count()).toBe(0)
+    triggerEvent(vm.$refs.ctrl, 'keyup', e => { e.ctrlKey = true })
+    expect(spy.calls.count()).toBe(1)
+
+    triggerEvent(vm.$refs.shift, 'keyup')
+    expect(spy.calls.count()).toBe(1)
+    triggerEvent(vm.$refs.shift, 'keyup', e => { e.shiftKey = true })
+    expect(spy.calls.count()).toBe(2)
+
+    triggerEvent(vm.$refs.alt, 'keyup')
+    expect(spy.calls.count()).toBe(2)
+    triggerEvent(vm.$refs.alt, 'keyup', e => { e.altKey = true })
+    expect(spy.calls.count()).toBe(3)
+
+    triggerEvent(vm.$refs.meta, 'keyup')
+    expect(spy.calls.count()).toBe(3)
+    triggerEvent(vm.$refs.meta, 'keyup', e => { e.metaKey = true })
+    expect(spy.calls.count()).toBe(4)
+  })
+
+  it('should support exact modifier', () => {
+    vm = new Vue({
+      el,
+      template: `
+        <div>
+          <input ref="ctrl" @keyup.exact="foo">
+        </div>
+      `,
+      methods: { foo: spy }
+    })
+
+    triggerEvent(vm.$refs.ctrl, 'keyup')
+    expect(spy.calls.count()).toBe(1)
+
+    triggerEvent(vm.$refs.ctrl, 'keyup', e => {
+      e.ctrlKey = true
+    })
+    expect(spy.calls.count()).toBe(1)
+
+    // should not trigger if has other system modifiers
+    triggerEvent(vm.$refs.ctrl, 'keyup', e => {
+      e.ctrlKey = true
+      e.altKey = true
+    })
+    expect(spy.calls.count()).toBe(1)
+  })
+
+  it('should support system modifers with exact', () => {
+    vm = new Vue({
+      el,
+      template: `
+        <div>
+          <input ref="ctrl" @keyup.ctrl.exact="foo">
+        </div>
+      `,
+      methods: { foo: spy }
+    })
+
+    triggerEvent(vm.$refs.ctrl, 'keyup')
+    expect(spy.calls.count()).toBe(0)
+
+    triggerEvent(vm.$refs.ctrl, 'keyup', e => {
+      e.ctrlKey = true
+    })
+    expect(spy.calls.count()).toBe(1)
+
+    // should not trigger if has other system modifiers
+    triggerEvent(vm.$refs.ctrl, 'keyup', e => {
+      e.ctrlKey = true
+      e.altKey = true
+    })
+    expect(spy.calls.count()).toBe(1)
+  })
+
   it('should support number keyCode', () => {
     vm = new Vue({
       el,
@@ -497,8 +587,8 @@ describe('Directive v-on', () => {
     }).not.toThrow()
   })
 
-  // GitHub Issue #5046
-  it('should support keyboard modifier', () => {
+  // Github Issue #5046
+  it('should support keyboard modifier for direction keys', () => {
     const spyLeft = jasmine.createSpy()
     const spyRight = jasmine.createSpy()
     const spyUp = jasmine.createSpy()
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 8b415a13ebd..4eb804c3d36 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -312,6 +312,14 @@ describe('codegen', () => {
       '<input @click.meta="onClick">',
       `with(this){return _c('input',{on:{"click":function($event){if(!$event.metaKey)return null;onClick($event)}}})}`
     )
+    assertCodegen(
+      '<input @click.exact="onClick">',
+      `with(this){return _c('input',{on:{"click":function($event){if($event.ctrlKey||$event.shiftKey||$event.altKey||$event.metaKey)return null;onClick($event)}}})}`
+    )
+    assertCodegen(
+      '<input @click.ctrl.exact="onClick">',
+      `with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;if($event.shiftKey||$event.altKey||$event.metaKey)return null;onClick($event)}}})}`
+    )
   })
 
   it('generate events with multiple modifiers', () => {

From 9761072d9302deac9c4fd3eefa98cc06b8fe3cb4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 10:23:51 -0400
Subject: [PATCH 120/911] refactor: rename variable

---
 src/core/vdom/patch.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 2918e621b0d..65764b6360f 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -369,7 +369,7 @@ export function createPatchFunction (backend) {
     let newEndIdx = newCh.length - 1
     let newStartVnode = newCh[0]
     let newEndVnode = newCh[newEndIdx]
-    let oldKeyToIdx, idxInOld, elmToMove, refElm
+    let oldKeyToIdx, idxInOld, vnodeToMove, refElm
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -407,18 +407,18 @@ export function createPatchFunction (backend) {
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)
         } else {
-          elmToMove = oldCh[idxInOld]
+          vnodeToMove = oldCh[idxInOld]
           /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !elmToMove) {
+          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             )
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue)
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue)
             oldCh[idxInOld] = undefined
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm)
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm)
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)

From 4987eeb3a734a16a4978d1061f73039002d351e6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 14:59:59 -0400
Subject: [PATCH 121/911] feat: v-on automatic key inference

---
 flow/component.js                             |  2 +-
 src/compiler/codegen/events.js                |  9 +++++++--
 .../instance/render-helpers/check-keycodes.js | 20 +++++++++++++------
 test/unit/features/directives/on.spec.js      | 12 +++++++++++
 test/unit/modules/compiler/codegen.spec.js    | 14 ++++++-------
 5 files changed, 41 insertions(+), 16 deletions(-)

diff --git a/flow/component.js b/flow/component.js
index 381943edaf7..71867ba3c71 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -126,7 +126,7 @@ declare interface Component {
   // apply v-on object
   _g: (data: any, value: any) => VNodeData;
   // check custom keyCode
-  _k: (eventKeyCode: number, key: string, builtInAlias: number | Array<number> | void) => boolean;
+  _k: (eventKeyCode: number, key: string, builtInAlias?: number | Array<number>, eventKeyName?: string) => ?boolean;
   // resolve scoped slots
   _u: (scopedSlots: ScopedSlotsData, res?: Object) => { [key: string]: Function };
 
diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 67ae0368b65..b15d93160d3 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -124,6 +124,11 @@ function genFilterCode (key: string): string {
   if (keyVal) {
     return `$event.keyCode!==${keyVal}`
   }
-  const alias = keyCodes[key]
-  return `_k($event.keyCode,${JSON.stringify(key)}${alias ? ',' + JSON.stringify(alias) : ''})`
+  const code = keyCodes[key]
+  return (
+    `_k($event.keyCode,` +
+    `${JSON.stringify(key)},` +
+    `${JSON.stringify(code)},` +
+    `$event.key)`
+  )
 }
diff --git a/src/core/instance/render-helpers/check-keycodes.js b/src/core/instance/render-helpers/check-keycodes.js
index 7d878009d10..8e77f29b9e4 100644
--- a/src/core/instance/render-helpers/check-keycodes.js
+++ b/src/core/instance/render-helpers/check-keycodes.js
@@ -1,19 +1,27 @@
 /* @flow */
 
 import config from 'core/config'
+import { hyphenate } from 'shared/util'
 
 /**
  * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
  */
 export function checkKeyCodes (
   eventKeyCode: number,
   key: string,
-  builtInAlias: number | Array<number> | void
-): boolean {
+  builtInAlias?: number | Array<number>,
+  eventKeyName?: string
+): ?boolean {
   const keyCodes = config.keyCodes[key] || builtInAlias
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
+    }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
   }
 }
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index 5dd0f1ce409..b65ec37948e 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -205,6 +205,18 @@ describe('Directive v-on', () => {
     expect(spy).toHaveBeenCalled()
   })
 
+  it('should support automatic key name inference', () => {
+    vm = new Vue({
+      el,
+      template: `<input @keyup.arrow-right="foo">`,
+      methods: { foo: spy }
+    })
+    triggerEvent(vm.$el, 'keyup', e => {
+      e.key = 'ArrowRight'
+    })
+    expect(spy).toHaveBeenCalled()
+  })
+
   // ctrl, shift, alt, meta
   it('should support system modifers', () => {
     vm = new Vue({
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 4eb804c3d36..6eaa3d18663 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -243,17 +243,17 @@ describe('codegen', () => {
   it('generate events with keycode', () => {
     assertCodegen(
       '<input @input.enter="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;onInput($event)}}})}`
     )
     // multiple keycodes (delete)
     assertCodegen(
       '<input @input.delete="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46]))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;onInput($event)}}})}`
     )
     // multiple keycodes (chained)
     assertCodegen(
       '<input @keydown.enter.delete="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13)&&_k($event.keyCode,"delete",[8,46]))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;onInput($event)}}})}`
     )
     // number keycode
     assertCodegen(
@@ -263,7 +263,7 @@ describe('codegen', () => {
     // custom keycode
     assertCodegen(
       '<input @input.custom="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom"))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key))return null;onInput($event)}}})}`
     )
   })
 
@@ -286,12 +286,12 @@ describe('codegen', () => {
   it('generate events with generic modifiers and keycode correct order', () => {
     assertCodegen(
       '<input @keydown.enter.prevent="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13))return null;$event.preventDefault();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.preventDefault();onInput($event)}}})}`
     )
 
     assertCodegen(
       '<input @keydown.enter.stop="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13))return null;$event.stopPropagation();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.stopPropagation();onInput($event)}}})}`
     )
   })
 
@@ -398,7 +398,7 @@ describe('codegen', () => {
     // with modifiers
     assertCodegen(
       `<input @keyup.enter="e=>current++">`,
-      `with(this){return _c('input',{on:{"keyup":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13))return null;(e=>current++)($event)}}})}`
+      `with(this){return _c('input',{on:{"keyup":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;(e=>current++)($event)}}})}`
     )
   })
 

From dae173d96d15f47de6ce6961354d5c05e4273005 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 17:25:39 -0400
Subject: [PATCH 122/911] feat: support denoting normal elements as scoped slot

also deprecate "scope" in favor of "slot-scope"
---
 src/compiler/codegen/index.js                 |   5 +-
 src/compiler/parser/index.js                  |  27 ++++-
 src/shared/util.js                            |   2 +-
 .../component/component-scoped-slot.spec.js   | 110 ++++++++++++++++--
 test/unit/modules/compiler/codegen.spec.js    |  22 ++++
 5 files changed, 146 insertions(+), 20 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index c4c31c20202..a8c7d4d5e70 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -239,7 +239,8 @@ export function genData (el: ASTElement, state: CodegenState): string {
     data += `${genHandlers(el.nativeEvents, true, state.warn)},`
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += `slot:${el.slotTarget},`
   }
   // scoped slots
@@ -342,7 +343,7 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return `{key:${key},fn:function(${String(el.attrsMap.scope)}){` +
+  return `{key:${key},fn:function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
       ? genChildren(el, state) || 'void 0'
       : genElement(el, state)
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index eb7fed80d02..466d7f5216c 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -31,7 +31,7 @@ const modifierRE = /\.[^.]+/g
 const decodeHTMLCached = cached(he.decode)
 
 // configurable state
-export let warn
+export let warn: any
 let delimiters
 let transforms
 let preTransforms
@@ -428,14 +428,31 @@ function processSlot (el) {
       )
     }
   } else {
+    let slotScope
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope')
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && slotScope) {
+        warn(
+          `the "scope" attribute for scoped slots have been deprecated and ` +
+          `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
+          `can also be used on plain elements in addition to <template> to ` +
+          `denote scoped slots.`,
+          true
+        )
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope')
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope
+    }
     const slotTarget = getBindingAttr(el, 'slot')
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget)
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope')
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget)
+      }
     }
   }
 }
diff --git a/src/shared/util.js b/src/shared/util.js
index b6b3eb5dcb2..81e3e9f8956 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -106,7 +106,7 @@ export const isBuiltInTag = makeMap('slot,component', true)
 /**
  * Check if a attribute is a reserved attribute.
  */
-export const isReservedAttribute = makeMap('key,ref,slot,is')
+export const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is')
 
 /**
  * Remove an item from an array
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 0a7923d9938..f4661fde403 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -5,7 +5,7 @@ describe('Component scoped slot', () => {
     const vm = new Vue({
       template: `
         <test ref="test">
-          <template scope="props">
+          <template slot-scope="props">
             <span>{{ props.msg }}</span>
           </template>
         </test>
@@ -31,11 +31,39 @@ describe('Component scoped slot', () => {
     }).then(done)
   })
 
+  it('default slot (plain element)', done => {
+    const vm = new Vue({
+      template: `
+        <test ref="test">
+          <span slot-scope="props">{{ props.msg }}</span>
+        </test>
+      `,
+      components: {
+        test: {
+          data () {
+            return { msg: 'hello' }
+          },
+          template: `
+            <div>
+              <slot :msg="msg"></slot>
+            </div>
+          `
+        }
+      }
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe('<span>hello</span>')
+    vm.$refs.test.msg = 'world'
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe('<span>world</span>')
+    }).then(done)
+  })
+
   it('with v-bind', done => {
     const vm = new Vue({
       template: `
         <test ref="test">
-          <template scope="props">
+          <template slot-scope="props">
             <span>{{ props.msg }} {{ props.msg2 }} {{ props.msg3 }}</span>
           </template>
         </test>
@@ -65,11 +93,11 @@ describe('Component scoped slot', () => {
     }).then(done)
   })
 
-  it('template slot', done => {
+  it('named scoped slot', done => {
     const vm = new Vue({
       template: `
         <test ref="test">
-          <template slot="item" scope="props">
+          <template slot="item" slot-scope="props">
             <span>{{ props.foo }}</span><span>{{ props.bar }}</span>
           </template>
         </test>
@@ -95,6 +123,34 @@ describe('Component scoped slot', () => {
     }).then(done)
   })
 
+  it('named scoped slot (plain element)', done => {
+    const vm = new Vue({
+      template: `
+        <test ref="test">
+          <span slot="item" slot-scope="props">{{ props.foo }} {{ props.bar }}</span>
+        </test>
+      `,
+      components: {
+        test: {
+          data () {
+            return { foo: 'FOO', bar: 'BAR' }
+          },
+          template: `
+            <div>
+              <slot name="item" :foo="foo" :bar="bar"></slot>
+            </div>
+          `
+        }
+      }
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe('<span>FOO BAR</span>')
+    vm.$refs.test.foo = 'BAZ'
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe('<span>BAZ BAR</span>')
+    }).then(done)
+  })
+
   it('fallback content', () => {
     const vm = new Vue({
       template: `<test></test>`,
@@ -120,7 +176,7 @@ describe('Component scoped slot', () => {
     const vm = new Vue({
       template: `
         <test ref="test">
-          <template slot="item" scope="props">
+          <template slot="item" slot-scope="props">
             <span>{{ props.text }}</span>
           </template>
         </test>
@@ -158,7 +214,7 @@ describe('Component scoped slot', () => {
     const vm = new Vue({
       template: `
         <test ref="test">
-          <template slot="item" scope="props">
+          <template slot="item" slot-scope="props">
             <span>{{ props.text }}</span>
           </template>
         </test>
@@ -221,7 +277,7 @@ describe('Component scoped slot', () => {
     const vm = new Vue({
       template: `
         <test ref="test">
-          <template slot="item" scope="props">
+          <template slot="item" slot-scope="props">
             <span>{{ props.text || 'meh' }}</span>
           </template>
         </test>
@@ -246,7 +302,7 @@ describe('Component scoped slot', () => {
     new Vue({
       template: `
         <test ref="test">
-          <template slot="item" scope="props">
+          <template slot="item" slot-scope="props">
             <span>{{ props.text }}</span>
           </template>
         </test>
@@ -343,8 +399,8 @@ describe('Component scoped slot', () => {
       },
       template: `
         <child>
-          <template :slot="a" scope="props">A {{ props.msg }}</template>
-          <template :slot="b" scope="props">B {{ props.msg }}</template>
+          <template :slot="a" slot-scope="props">A {{ props.msg }}</template>
+          <template :slot="b" slot-scope="props">B {{ props.msg }}</template>
         </child>
       `,
       components: { Child }
@@ -389,10 +445,10 @@ describe('Component scoped slot', () => {
       data: { names: ['foo', 'bar'] },
       template: `
         <test ref="test">
-          <template v-for="n in names" :slot="n" scope="props">
+          <template v-for="n in names" :slot="n" slot-scope="props">
             <span>{{ props.msg }}</span>
           </template>
-          <template slot="abc" scope="props">
+          <template slot="abc" slot-scope="props">
             <span>{{ props.msg }}</span>
           </template>
         </test>
@@ -417,4 +473,34 @@ describe('Component scoped slot', () => {
       expect(vm.$el.innerHTML).toBe('<span>world foo</span> <span>world bar</span> <span>world abc</span>')
     }).then(done)
   })
+
+  it('scoped slot with v-for (plain elements)', done => {
+    const vm = new Vue({
+      data: { names: ['foo', 'bar'] },
+      template: `
+        <test ref="test">
+          <span v-for="n in names" :slot="n" slot-scope="props">{{ props.msg }}</span>
+          <span slot="abc" slot-scope="props">{{ props.msg }}</span>
+        </test>
+      `,
+      components: {
+        test: {
+          data: () => ({ msg: 'hello' }),
+          template: `
+            <div>
+              <slot name="foo" :msg="msg + ' foo'"></slot>
+              <slot name="bar" :msg="msg + ' bar'"></slot>
+              <slot name="abc" :msg="msg + ' abc'"></slot>
+            </div>
+          `
+        }
+      }
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe('<span>hello foo</span> <span>hello bar</span> <span>hello abc</span>')
+    vm.$refs.test.msg = 'world'
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe('<span>world foo</span> <span>world bar</span> <span>world abc</span>')
+    }).then(done)
+  })
 })
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 6eaa3d18663..d8b6c7e6839 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -179,6 +179,28 @@ describe('codegen', () => {
     )
   })
 
+  it('generate scoped slot', () => {
+    assertCodegen(
+      '<foo><template slot-scope="bar">{{ bar }}</template></foo>',
+      `with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return [_v(_s(bar))]}}])})}`
+    )
+    assertCodegen(
+      '<foo><div slot-scope="bar">{{ bar }}</div></foo>',
+      `with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return _c('div',{},[_v(_s(bar))])}}])})}`
+    )
+  })
+
+  it('generate named scoped slot', () => {
+    assertCodegen(
+      '<foo><template slot="foo" slot-scope="bar">{{ bar }}</template></foo>',
+      `with(this){return _c('foo',{scopedSlots:_u([{key:"foo",fn:function(bar){return [_v(_s(bar))]}}])})}`
+    )
+    assertCodegen(
+      '<foo><div slot="foo" slot-scope="bar">{{ bar }}</div></foo>',
+      `with(this){return _c('foo',{scopedSlots:_u([{key:"foo",fn:function(bar){return _c('div',{},[_v(_s(bar))])}}])})}`
+    )
+  })
+
   it('generate class binding', () => {
     // static
     assertCodegen(

From 8295f716657ffe516f30e84f29ca94f4a0aefabf Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 17:31:58 -0400
Subject: [PATCH 123/911] fix: warn slot-scope when used as a prop

---
 src/core/instance/state.js               | 7 +++++--
 test/unit/features/options/props.spec.js | 2 +-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 37f1ab152f1..f6770325506 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -18,6 +18,7 @@ import {
   bind,
   noop,
   hasOwn,
+  hyphenate,
   isReserved,
   handleError,
   nativeWatch,
@@ -84,9 +85,11 @@ function initProps (vm: Component, propsOptions: Object) {
     const value = validateProp(key, propsOptions, propsData, vm)
     /* istanbul ignore else */
     if (process.env.NODE_ENV !== 'production') {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      const hyphenatedKey = hyphenate(key)
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          `"${key}" is a reserved attribute and cannot be used as component prop.`,
+          `"${hyphenatedKey}" is a reserved attribute and cannot be used as component prop.`,
           vm
         )
       }
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index 35348d2457b..c92e1ce3dbf 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -501,7 +501,7 @@ describe('Options props', () => {
   })
 
   it('warn reserved props', () => {
-    const specialAttrs = ['key', 'ref', 'slot', 'is']
+    const specialAttrs = ['key', 'ref', 'slot', 'is', 'slot-scope']
     new Vue({
       props: specialAttrs
     })

From ef358fef94c544bc776d6df791ecdfc6fbdf8cde Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 18:14:53 -0400
Subject: [PATCH 124/911] build: tweak build script

---
 build/build.js  |  2 +-
 build/config.js | 14 ++++++++++----
 package.json    |  6 +++---
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/build/build.js b/build/build.js
index 5276f49214a..82d4c52e631 100644
--- a/build/build.js
+++ b/build/build.js
@@ -14,7 +14,7 @@ let builds = require('./config').getAllBuilds()
 if (process.argv[2]) {
   const filters = process.argv[2].split(',')
   builds = builds.filter(b => {
-    return filters.some(f => b.output.file.indexOf(f) > -1)
+    return filters.some(f => b.output.file.indexOf(f) > -1 || b._name.indexOf(f) > -1)
   })
 } else {
   // filter out weex builds by default
diff --git a/build/config.js b/build/config.js
index 6f190dd48ce..b0c705e4d1a 100644
--- a/build/config.js
+++ b/build/config.js
@@ -168,7 +168,8 @@ const builds = {
   }
 }
 
-function genConfig (opts) {
+function genConfig (name) {
+  const opts = builds[name]
   const config = {
     input: opts.entry,
     external: opts.external,
@@ -196,12 +197,17 @@ function genConfig (opts) {
     }))
   }
 
+  Object.defineProperty(config, '_name', {
+    enumerable: false,
+    value: name
+  })
+
   return config
 }
 
 if (process.env.TARGET) {
-  module.exports = genConfig(builds[process.env.TARGET])
+  module.exports = genConfig(process.env.TARGET)
 } else {
-  exports.getBuild = name => genConfig(builds[name])
-  exports.getAllBuilds = () => Object.keys(builds).map(name => genConfig(builds[name]))
+  exports.getBuild = genConfig
+  exports.getAllBuilds = () => Object.keys(builds).map(genConfig)
 }
diff --git a/package.json b/package.json
index ce6a20ef99a..69b34d5f25d 100644
--- a/package.json
+++ b/package.json
@@ -22,12 +22,12 @@
     "dev:weex": "rollup -w -c build/config.js --environment TARGET:weex-framework ",
     "dev:weex:compiler": "rollup -w -c build/config.js --environment TARGET:weex-compiler ",
     "build": "node build/build.js",
-    "build:ssr": "npm run build -- vue.runtime.common.js,vue-server-renderer",
-    "build:weex": "npm run build -- weex-vue-framework,weex-template-compiler",
+    "build:ssr": "npm run build -- web-runtime-cjs,web-server-renderer",
+    "build:weex": "npm run build -- weex-framework,weex-compiler",
     "test": "npm run lint && flow check && npm run test:types && npm run test:cover && npm run test:e2e -- --env phantomjs && npm run test:ssr && npm run test:weex",
     "test:unit": "karma start test/unit/karma.unit.config.js",
     "test:cover": "karma start test/unit/karma.cover.config.js",
-    "test:e2e": "npm run build -- vue.min.js && node test/e2e/runner.js",
+    "test:e2e": "npm run build -- web-full-prod,web-server-basic-renderer && node test/e2e/runner.js",
     "test:weex": "npm run build:weex && jasmine JASMINE_CONFIG_PATH=test/weex/jasmine.json",
     "test:ssr": "npm run build:ssr && jasmine JASMINE_CONFIG_PATH=test/ssr/jasmine.json",
     "test:sauce": "npm run sauce -- 0 && npm run sauce -- 1 && npm run sauce -- 2",

From e76e648bc8b6a9df64f0b44716f76a1e4b259ed6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 18:15:35 -0400
Subject: [PATCH 125/911] refactor: avoid using Object.assign in SSR code for
 basic renderer compat in other environments

---
 src/platforms/web/entry-server-renderer.js        | 5 +++--
 src/platforms/web/server/modules/attrs.js         | 5 +++--
 src/platforms/web/server/modules/dom-props.js     | 4 ++--
 src/server/optimizing-compiler/runtime-helpers.js | 2 +-
 src/server/render.js                              | 5 +++--
 5 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/src/platforms/web/entry-server-renderer.js b/src/platforms/web/entry-server-renderer.js
index 462dc018033..f61f601b174 100644
--- a/src/platforms/web/entry-server-renderer.js
+++ b/src/platforms/web/entry-server-renderer.js
@@ -2,6 +2,7 @@
 
 process.env.VUE_ENV = 'server'
 
+import { extend } from 'shared/util'
 import modules from './server/modules/index'
 import baseDirectives from './server/directives/index'
 import { isUnaryTag, canBeLeftOpenTag } from './compiler/util'
@@ -13,13 +14,13 @@ export function createRenderer (options?: Object = {}): {
   renderToString: Function,
   renderToStream: Function
 } {
-  return _createRenderer(Object.assign({}, options, {
+  return _createRenderer(extend(extend({}, options), {
     isUnaryTag,
     canBeLeftOpenTag,
     modules,
     // user can provide server-side implementations for custom directives
     // when creating the renderer.
-    directives: Object.assign(baseDirectives, options.directives)
+    directives: extend(baseDirectives, options.directives)
   }))
 }
 
diff --git a/src/platforms/web/server/modules/attrs.js b/src/platforms/web/server/modules/attrs.js
index dc4ccd2465c..9e7cc06160b 100644
--- a/src/platforms/web/server/modules/attrs.js
+++ b/src/platforms/web/server/modules/attrs.js
@@ -4,7 +4,8 @@ import { escape } from '../util'
 
 import {
   isDef,
-  isUndef
+  isUndef,
+  extend
 } from 'shared/util'
 
 import {
@@ -22,7 +23,7 @@ export default function renderAttrs (node: VNodeWithData): string {
     let parent = node.parent
     while (isDef(parent)) {
       if (isDef(parent.data) && isDef(parent.data.attrs)) {
-        attrs = Object.assign({}, attrs, parent.data.attrs)
+        attrs = extend(extend({}, attrs), parent.data.attrs)
       }
       parent = parent.parent
     }
diff --git a/src/platforms/web/server/modules/dom-props.js b/src/platforms/web/server/modules/dom-props.js
index 8618b100d1b..98a0daf7f35 100644
--- a/src/platforms/web/server/modules/dom-props.js
+++ b/src/platforms/web/server/modules/dom-props.js
@@ -2,7 +2,7 @@
 
 import VNode from 'core/vdom/vnode'
 import { renderAttr } from './attrs'
-import { isDef, isUndef } from 'shared/util'
+import { isDef, isUndef, extend } from 'shared/util'
 import { propsToAttrMap, isRenderableAttr } from '../util'
 
 export default function renderDOMProps (node: VNodeWithData): string {
@@ -12,7 +12,7 @@ export default function renderDOMProps (node: VNodeWithData): string {
   let parent = node.parent
   while (isDef(parent)) {
     if (parent.data && parent.data.domProps) {
-      props = Object.assign({}, props, parent.data.domProps)
+      props = extend(extend({}, props), parent.data.domProps)
     }
     parent = parent.parent
   }
diff --git a/src/server/optimizing-compiler/runtime-helpers.js b/src/server/optimizing-compiler/runtime-helpers.js
index 65ec44babca..b4f7c1f145d 100644
--- a/src/server/optimizing-compiler/runtime-helpers.js
+++ b/src/server/optimizing-compiler/runtime-helpers.js
@@ -23,7 +23,7 @@ export function installSSRHelpers (vm: Component) {
   while (Ctor.super) {
     Ctor = Ctor.super
   }
-  Object.assign(Ctor.prototype, {
+  extend(Ctor.prototype, {
     _ssrEscape: escape,
     _ssrNode: renderStringNode,
     _ssrList: renderStringList,
diff --git a/src/server/render.js b/src/server/render.js
index de1bb4eef79..52d0191c9d1 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -3,7 +3,8 @@
 import {
   isDef,
   isUndef,
-  isTrue
+  isTrue,
+  extend
 } from 'shared/util'
 
 import { escape } from 'web/server/util'
@@ -29,7 +30,7 @@ const normalizeRender = vm => {
   const { render, template, _scopeId } = vm.$options
   if (isUndef(render)) {
     if (template) {
-      Object.assign(vm.$options, ssrCompileToFunctions(template, {
+      extend(vm.$options, ssrCompileToFunctions(template, {
         scopeId: _scopeId
       }))
     } else {

From aa1356e83de1112660e7a88ff955f49d64bb5b1f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 18:15:45 -0400
Subject: [PATCH 126/911] test: e2e tests for basic renderer

---
 test/e2e/specs/basic-ssr.html | 24 ++++++++++++++++++++++++
 test/e2e/specs/basic-ssr.js   |  8 ++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 test/e2e/specs/basic-ssr.html
 create mode 100644 test/e2e/specs/basic-ssr.js

diff --git a/test/e2e/specs/basic-ssr.html b/test/e2e/specs/basic-ssr.html
new file mode 100644
index 00000000000..67f0dac6d6a
--- /dev/null
+++ b/test/e2e/specs/basic-ssr.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title></title>
+  </head>
+  <body>
+    <script src="../../../dist/vue.min.js"></script>
+    <script src="../../../packages/vue-server-renderer/basic.js"></script>
+
+    <div id="result">wtf</div>
+
+    <script>
+    var vm = new Vue({
+      data: { msg: 'foo' },
+      template: '<div>{{ msg }}</div>'
+    })
+
+    renderVueComponentToString(vm, function (err, result) {
+      document.getElementById('result').textContent = err && err.toString() || result
+    })
+    </script>
+  </body>
+</html>
diff --git a/test/e2e/specs/basic-ssr.js b/test/e2e/specs/basic-ssr.js
new file mode 100644
index 00000000000..b1ea2402d2e
--- /dev/null
+++ b/test/e2e/specs/basic-ssr.js
@@ -0,0 +1,8 @@
+module.exports = {
+  'basic SSR': function (browser) {
+    browser
+    .url('http://localhost:8080/test/e2e/specs/basic-ssr.html')
+      .assert.containsText('#result', '<div data-server-rendered="true">foo</div>')
+      .end()
+  }
+}

From 1780b1f07b9d3910bac5b101cb65b645f67b1df5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Oct 2017 18:23:53 -0400
Subject: [PATCH 127/911] build: fix weex build

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 69b34d5f25d..ec19e520331 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "dev:weex:compiler": "rollup -w -c build/config.js --environment TARGET:weex-compiler ",
     "build": "node build/build.js",
     "build:ssr": "npm run build -- web-runtime-cjs,web-server-renderer",
-    "build:weex": "npm run build -- weex-framework,weex-compiler",
+    "build:weex": "npm run build -- weex",
     "test": "npm run lint && flow check && npm run test:types && npm run test:cover && npm run test:e2e -- --env phantomjs && npm run test:ssr && npm run test:weex",
     "test:unit": "karma start test/unit/karma.unit.config.js",
     "test:cover": "karma start test/unit/karma.cover.config.js",

From 6e41679a96582da3e0a60bdbf123c33ba0e86b31 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 00:52:47 -0400
Subject: [PATCH 128/911] fix: use MessageChannel for nextTick

fix #6566, #6690
---
 src/core/util/env.js                          | 53 +++++++-----------
 .../web/compiler/directives/model.js          |  5 +-
 src/platforms/web/runtime/modules/events.js   | 13 ++---
 test/e2e/specs/async-edge-cases.html          | 54 +++++++++++++++++++
 test/e2e/specs/async-edge-cases.js            | 34 ++++++++++++
 5 files changed, 113 insertions(+), 46 deletions(-)
 create mode 100644 test/e2e/specs/async-edge-cases.html
 create mode 100644 test/e2e/specs/async-edge-cases.js

diff --git a/src/core/util/env.js b/src/core/util/env.js
index 57e65b20c54..3eb9ddd6c94 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -1,7 +1,6 @@
 /* @flow */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
-import { noop } from 'shared/util'
 import { handleError } from './error'
 
 // can we use __proto__?
@@ -80,41 +79,29 @@ export const nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
-  /* istanbul ignore if */ // $flow-disable-line
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve()
-    var logError = err => { handleError(err, null, 'nextTick') }
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
+  /* istanbul ignore if */
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = () => {
-      p.then(nextTickHandler).catch(logError)
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) setTimeout(noop)
+      setImmediate(nextTickHandler)
     }
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1
-    var observer = new MutationObserver(nextTickHandler)
-    var textNode = document.createTextNode(String(counter))
-    observer.observe(textNode, {
-      characterData: true
-    })
+    const channel = new MessageChannel()
+    const port = channel.port2
+    channel.port1.onmessage = nextTickHandler
     timerFunc = () => {
-      counter = (counter + 1) % 2
-      textNode.data = String(counter)
+      port.postMessage(1)
     }
   } else {
     // fallback to setTimeout
diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 7c662629b65..98dd5a5213e 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -9,7 +9,6 @@ let warn
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 export const RANGE_TOKEN = '__r'
-export const CHECKBOX_RADIO_TOKEN = '__c'
 
 export default function model (
   el: ASTElement,
@@ -86,7 +85,7 @@ function genCheckboxModel (
           : `:_q(${value},${trueValueBinding})`
       )
   )
-  addHandler(el, CHECKBOX_RADIO_TOKEN,
+  addHandler(el, 'change',
     `var $$a=${value},` +
         '$$el=$event.target,' +
         `$$c=$$el.checked?(${trueValueBinding}):(${falseValueBinding});` +
@@ -109,7 +108,7 @@ function genRadioModel (
   let valueBinding = getBindingAttr(el, 'value') || 'null'
   valueBinding = number ? `_n(${valueBinding})` : valueBinding
   addProp(el, 'checked', `_q(${value},${valueBinding})`)
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true)
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true)
 }
 
 function genSelect (
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 104ef12ccf8..da052deb56d 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -2,28 +2,21 @@
 
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
-import { isChrome, isIE, supportsPassive } from 'core/util/env'
-import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
+import { isIE, supportsPassive } from 'core/util/env'
+import { RANGE_TOKEN } from 'web/compiler/directives/model'
 
 // normalize v-model event tokens that can only be determined at runtime.
 // it's important to place the event as the first in the array because
 // the whole point is ensuring the v-model callback gets called before
 // user-attached handlers.
 function normalizeEvents (on) {
-  let event
   /* istanbul ignore if */
   if (isDef(on[RANGE_TOKEN])) {
     // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input'
+    const event = isIE ? 'change' : 'input'
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || [])
     delete on[RANGE_TOKEN]
   }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change'
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || [])
-    delete on[CHECKBOX_RADIO_TOKEN]
-  }
 }
 
 let target: HTMLElement
diff --git a/test/e2e/specs/async-edge-cases.html b/test/e2e/specs/async-edge-cases.html
new file mode 100644
index 00000000000..fe5aa6160d3
--- /dev/null
+++ b/test/e2e/specs/async-edge-cases.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <title></title>
+    <script src="../../../dist/vue.min.js"></script>
+  </head>
+  <body>
+
+    <!-- #4510 click and change event on checkbox -->
+    <div id="case-1">
+      <div @click="num++">
+        {{ num }}
+        <input type="checkbox" v-model="checked">
+      </div>
+    </div>
+    <script>
+    var vm1 = new Vue({
+      el: '#case-1',
+      data: {
+        num: 1,
+        checked: false
+      }
+    })
+    </script>
+
+    <!-- #6566 click event bubbling -->
+    <div id="case-2">
+      <div v-if="expand">
+        <button @click="expand = false, countA++">Expand is True</button>
+      </div>
+      <div class="header" v-if="!expand" @click="expand = true, countB++">
+        <button>Expand is False</button>
+      </div>
+      <div class="count-a">
+        countA: {{countA}}
+      </div>
+      <div class="count-b">
+        countB: {{countB}}
+      </div>
+    </div>
+    <script>
+    var vm2 = new Vue({
+      el: '#case-2',
+      data: {
+        expand: true,
+        countA: 0,
+        countB: 0,
+      }
+    })
+    </script>
+
+  </body>
+</html>
diff --git a/test/e2e/specs/async-edge-cases.js b/test/e2e/specs/async-edge-cases.js
new file mode 100644
index 00000000000..2873409400b
--- /dev/null
+++ b/test/e2e/specs/async-edge-cases.js
@@ -0,0 +1,34 @@
+module.exports = {
+  'async edge cases': function (browser) {
+    browser
+    .url('http://localhost:8080/test/e2e/specs/async-edge-cases.html')
+      // #4510
+      .assert.containsText('#case-1', '1')
+      .assert.checked('#case-1 input', false)
+
+      .click('#case-1 input')
+      .assert.containsText('#case-1', '2')
+      .assert.checked('#case-1 input', true)
+
+      .click('#case-1 input')
+      .assert.containsText('#case-1', '3')
+      .assert.checked('#case-1 input', false)
+
+      // #6566
+      .assert.containsText('#case-2 button', 'Expand is True')
+      .assert.containsText('.count-a', 'countA: 0')
+      .assert.containsText('.count-b', 'countB: 0')
+
+      .click('#case-2 button')
+      .assert.containsText('#case-2 button', 'Expand is False')
+      .assert.containsText('.count-a', 'countA: 1')
+      .assert.containsText('.count-b', 'countB: 0')
+
+      .click('#case-2 button')
+      .assert.containsText('#case-2 button', 'Expand is True')
+      .assert.containsText('.count-a', 'countA: 1')
+      .assert.containsText('.count-b', 'countB: 1')
+
+      .end()
+  }
+}

From 6d1f4cb89a156bf5f84942b1031354aa93916cb7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 01:01:08 -0400
Subject: [PATCH 129/911] fix: fallback to Promise in non-DOM environments

---
 src/core/util/env.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index 3eb9ddd6c94..fa7e41c57d2 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -103,6 +103,12 @@ export const nextTick = (function () {
     timerFunc = () => {
       port.postMessage(1)
     }
+  } else if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    const p = Promise.resolve()
+    timerFunc = () => {
+      p.then(nextTickHandler)
+    }
   } else {
     // fallback to setTimeout
     /* istanbul ignore next */

From e34c6b78bd77d5eff86a83525a71f1e2f90607a4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 10:50:01 -0400
Subject: [PATCH 130/911] chore: coverage

---
 src/core/util/env.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index fa7e41c57d2..ca14c30264a 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -103,7 +103,9 @@ export const nextTick = (function () {
     timerFunc = () => {
       port.postMessage(1)
     }
-  } else if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
     // use microtask in non-DOM environments, e.g. Weex
     const p = Promise.resolve()
     timerFunc = () => {
@@ -111,7 +113,6 @@ export const nextTick = (function () {
     }
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = () => {
       setTimeout(nextTickHandler, 0)
     }

From b3cd9bc3940eb1e01da7081450929557d9c1651e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 14:59:38 -0400
Subject: [PATCH 131/911] feat: add catchError option

also propagate error thrown in renderError() to global handler
---
 src/core/instance/render.js                   |  15 ++-
 src/core/util/error.js                        |  22 +++-
 test/unit/features/error-handling.spec.js     |   4 +-
 test/unit/features/options/catchError.spec.js | 121 ++++++++++++++++++
 .../unit/features/options/renderError.spec.js |  14 ++
 5 files changed, 167 insertions(+), 9 deletions(-)
 create mode 100644 test/unit/features/options/catchError.spec.js

diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 15bc9a30192..b492316a0df 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -101,14 +101,21 @@ export function renderMixin (Vue: Class<Component>) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement)
     } catch (e) {
-      handleError(e, vm, `render function`)
+      handleError(e, vm, `render`)
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
+          } catch (e) {
+            handleError(e, vm, `renderError`)
+            vnode = vm._vnode
+          }
+        } else {
+          vnode = vm._vnode
+        }
       } else {
         vnode = vm._vnode
       }
diff --git a/src/core/util/error.js b/src/core/util/error.js
index b961986a585..9b87f89e465 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -5,12 +5,28 @@ import { warn } from './debug'
 import { inBrowser } from './env'
 
 export function handleError (err: Error, vm: any, info: string) {
+  if (vm) {
+    let cur = vm
+    while ((cur = cur.$parent)) {
+      if (cur.$options.catchError) {
+        try {
+          const propagate = cur.$options.catchError.call(cur, err, vm, info)
+          if (!propagate) return
+        } catch (e) {
+          globalHandleError(e, cur, 'catchError')
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info)
+}
+
+function globalHandleError (err, vm, info) {
   if (config.errorHandler) {
     try {
-      config.errorHandler.call(null, err, vm, info)
-      return
+      return config.errorHandler.call(null, err, vm, info)
     } catch (e) {
-      logError(e, null, 'errorHandler')
+      logError(e, null, 'config.errorHandler')
     }
   }
   logError(err, vm, info)
diff --git a/test/unit/features/error-handling.spec.js b/test/unit/features/error-handling.spec.js
index 5bf05fdb120..217bb72721a 100644
--- a/test/unit/features/error-handling.spec.js
+++ b/test/unit/features/error-handling.spec.js
@@ -7,7 +7,7 @@ describe('Error handling', () => {
   // break parent component
   ;[
     ['data', 'data()'],
-    ['render', 'render function'],
+    ['render', 'render'],
     ['beforeCreate', 'beforeCreate hook'],
     ['created', 'created hook'],
     ['beforeMount', 'beforeMount hook'],
@@ -99,7 +99,7 @@ describe('Error handling', () => {
     const args = spy.calls.argsFor(0)
     expect(args[0].toString()).toContain('Error: render') // error
     expect(args[1]).toBe(vm.$refs.child) // vm
-    expect(args[2]).toContain('render function') // description
+    expect(args[2]).toContain('render') // description
 
     assertRootInstanceActive(vm).then(() => {
       Vue.config.errorHandler = null
diff --git a/test/unit/features/options/catchError.spec.js b/test/unit/features/options/catchError.spec.js
new file mode 100644
index 00000000000..27a12145fce
--- /dev/null
+++ b/test/unit/features/options/catchError.spec.js
@@ -0,0 +1,121 @@
+import Vue from 'vue'
+
+describe('Options catchError', () => {
+  let globalSpy
+
+  beforeEach(() => {
+    globalSpy = Vue.config.errorHandler = jasmine.createSpy()
+  })
+
+  afterEach(() => {
+    Vue.config.errorHandler = null
+  })
+
+  it('should capture error from child component', () => {
+    const spy = jasmine.createSpy()
+
+    let child
+    let err
+    const Child = {
+      created () {
+        child = this
+        err = new Error('child')
+        throw err
+      },
+      render () {}
+    }
+
+    new Vue({
+      catchError: spy,
+      render: h => h(Child)
+    }).$mount()
+
+    expect(spy).toHaveBeenCalledWith(err, child, 'created hook')
+    // should not propagate by default
+    expect(globalSpy).not.toHaveBeenCalled()
+  })
+
+  it('should be able to render the error in itself', done => {
+    let child
+    const Child = {
+      created () {
+        child = this
+        throw new Error('error from child')
+      },
+      render () {}
+    }
+
+    const vm = new Vue({
+      data: {
+        error: null
+      },
+      catchError (e, vm, info) {
+        expect(vm).toBe(child)
+        this.error = e.toString() + ' in ' + info
+      },
+      render (h) {
+        if (this.error) {
+          return h('pre', this.error)
+        }
+        return h(Child)
+      }
+    }).$mount()
+
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toContain('error from child')
+      expect(vm.$el.textContent).toContain('in created hook')
+    }).then(done)
+  })
+
+  it('should propagate to global handler when returning true', () => {
+    const spy = jasmine.createSpy()
+
+    let child
+    let err
+    const Child = {
+      created () {
+        child = this
+        err = new Error('child')
+        throw err
+      },
+      render () {}
+    }
+
+    new Vue({
+      catchError (err, vm, info) {
+        spy(err, vm, info)
+        return true
+      },
+      render: h => h(Child, {})
+    }).$mount()
+
+    expect(spy).toHaveBeenCalledWith(err, child, 'created hook')
+    // should propagate
+    expect(globalSpy).toHaveBeenCalledWith(err, child, 'created hook')
+  })
+
+  it('should propagate to global handler if itself throws error', () => {
+    let child
+    let err
+    const Child = {
+      created () {
+        child = this
+        err = new Error('child')
+        throw err
+      },
+      render () {}
+    }
+
+    let err2
+    const vm = new Vue({
+      catchError () {
+        err2 = new Error('foo')
+        throw err2
+      },
+      render: h => h(Child, {})
+    }).$mount()
+
+    expect(globalSpy).toHaveBeenCalledWith(err, child, 'created hook')
+    expect(globalSpy).toHaveBeenCalledWith(err2, vm, 'catchError')
+  })
+})
diff --git a/test/unit/features/options/renderError.spec.js b/test/unit/features/options/renderError.spec.js
index 36b263b8565..20a0aa749a2 100644
--- a/test/unit/features/options/renderError.spec.js
+++ b/test/unit/features/options/renderError.spec.js
@@ -25,4 +25,18 @@ describe('Options renderError', () => {
       Vue.config.errorHandler = null
     }).then(done)
   })
+
+  it('should pass on errors in renderError to global handler', () => {
+    const spy = Vue.config.errorHandler = jasmine.createSpy()
+    const err = new Error('renderError')
+    const vm = new Vue({
+      render () {
+        throw new Error('render')
+      },
+      renderError () {
+        throw err
+      }
+    }).$mount()
+    expect(spy).toHaveBeenCalledWith(err, vm, 'renderError')
+  })
 })

From 88423fc66a2a4917dcdb7631a4594f05446283b1 Mon Sep 17 00:00:00 2001
From: Popescu Dan <pdan.popescu@gmail.com>
Date: Thu, 5 Oct 2017 22:44:32 +0300
Subject: [PATCH 132/911] feat(inject): support providing default values for
 injections (#6322)

---
 src/core/instance/inject.js               | 13 ++++++--
 src/core/util/options.js                  | 11 +++++--
 test/unit/features/options/inject.spec.js | 39 +++++++++++++++++++++++
 3 files changed, 58 insertions(+), 5 deletions(-)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index 98887c48609..dd56e588855 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -49,7 +49,7 @@ export function resolveInject (inject: any, vm: Component): ?Object {
 
     for (let i = 0; i < keys.length; i++) {
       const key = keys[i]
-      const provideKey = inject[key]
+      const provideKey = inject[key].name
       let source = vm
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -58,8 +58,15 @@ export function resolveInject (inject: any, vm: Component): ?Object {
         }
         source = source.$parent
       }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn(`Injection "${key}" not found`, vm)
+      if (!source) {
+        if ('default' in inject[key]) {
+          const provideDefault = inject[key].default
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(`Injection "${key}" not found`, vm)
+        }
       }
     }
     return result
diff --git a/src/core/util/options.js b/src/core/util/options.js
index 70e4d015b4d..11a586961c4 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -270,10 +270,17 @@ function normalizeProps (options: Object) {
  */
 function normalizeInject (options: Object) {
   const inject = options.inject
+  const normalized = options.inject = {}
   if (Array.isArray(inject)) {
-    const normalized = options.inject = {}
     for (let i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i]
+      normalized[inject[i]] = { name: inject[i] }
+    }
+  } else if (isPlainObject(inject)) {
+    for (const key in inject) {
+      const val = inject[key]
+      normalized[key] = isPlainObject(val)
+        ? extend({ name: key }, val)
+        : { name: val }
     }
   }
 }
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index 86e3ada5736..99c78f960c8 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -370,6 +370,45 @@ describe('Options provide/inject', () => {
     expect(`Injection "__ob__" not found`).not.toHaveBeenWarned()
   })
 
+  // Github issue #6097
+  it('should not warn when injections cannot be found but have default value', () => {
+    const vm = new Vue({})
+    new Vue({
+      parent: vm,
+      inject: {
+        foo: { default: 1 },
+        bar: { default: false },
+        baz: { default: undefined }
+      },
+      created () {}
+    })
+    expect(`Injection "foo" not found`).not.toHaveBeenWarned()
+    expect(`Injection "bar" not found`).not.toHaveBeenWarned()
+    expect(`Injection "baz" not found`).not.toHaveBeenWarned()
+  })
+
+  it('should use provided value even if inject has default', () => {
+    const vm = new Vue({
+      provide: {
+        foo: 1,
+        bar: false,
+        baz: undefined
+      }
+    })
+    new Vue({
+      parent: vm,
+      inject: {
+        foo: { default: 2 },
+        bar: { default: 2 },
+        baz: { default: 2 }
+      },
+      created () {
+        injected = [this.foo, this.bar, this.baz]
+      }
+    })
+    expect(injected).toEqual([1, false, undefined])
+  })
+
   // Github issue #6008
   it('should merge provide from mixins (objects)', () => {
     const mixinA = { provide: { foo: 'foo' }}

From 3c65239ad406f371564c1b5d8303b772e5c5a7d1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 15:56:36 -0400
Subject: [PATCH 133/911] test: improve inject default test case

---
 test/unit/features/options/inject.spec.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index 99c78f960c8..739f5daffeb 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -380,11 +380,14 @@ describe('Options provide/inject', () => {
         bar: { default: false },
         baz: { default: undefined }
       },
-      created () {}
+      created () {
+        injected = [this.foo, this.bar, this.baz]
+      }
     })
     expect(`Injection "foo" not found`).not.toHaveBeenWarned()
     expect(`Injection "bar" not found`).not.toHaveBeenWarned()
     expect(`Injection "baz" not found`).not.toHaveBeenWarned()
+    expect(injected).toEqual([1, false, undefined])
   })
 
   it('should use provided value even if inject has default', () => {

From 2503e13de58c7f8286c77c2668118ed30b69d79d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 16:49:57 -0400
Subject: [PATCH 134/911] chore: fix sponsor logo width

---
 README.md | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 1a958069e44..4edfa403b27 100644
--- a/README.md
+++ b/README.md
@@ -124,8 +124,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
       </td>
       <td align="center" valign="middle">
         <a href="http://tooltwist.com" target="_blank">
-          <img width="14
-          0px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+          <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
         </a>
       </td>
     </tr>

From 2cba6d4cb1db8273ee45cccb8e50ebd87191244e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 22:01:50 -0400
Subject: [PATCH 135/911] feat: add max prop for <keep-alive>

---
 src/core/components/keep-alive.js             | 55 +++++++++++-----
 .../component/component-keep-alive.spec.js    | 66 +++++++++++++++++++
 2 files changed, 103 insertions(+), 18 deletions(-)

diff --git a/src/core/components/keep-alive.js b/src/core/components/keep-alive.js
index 734570ca945..3f6e7af45ff 100644
--- a/src/core/components/keep-alive.js
+++ b/src/core/components/keep-alive.js
@@ -1,12 +1,10 @@
 /* @flow */
 
-import { isRegExp } from 'shared/util'
+import { isRegExp, remove } from 'shared/util'
 import { getFirstComponentChild } from 'core/vdom/helpers/index'
 
 type VNodeCache = { [key: string]: ?VNode };
 
-const patternTypes: Array<Function> = [String, RegExp, Array]
-
 function getComponentName (opts: ?VNodeComponentOptions): ?string {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -23,52 +21,62 @@ function matches (pattern: string | RegExp | Array<string>, name: string): boole
   return false
 }
 
-function pruneCache (cache: VNodeCache, current: VNode, filter: Function) {
+function pruneCache (keepAliveInstance: any, filter: Function) {
+  const { cache, keys, _vnode } = keepAliveInstance
   for (const key in cache) {
     const cachedNode: ?VNode = cache[key]
     if (cachedNode) {
       const name: ?string = getComponentName(cachedNode.componentOptions)
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode)
-        }
-        cache[key] = null
+        pruneCacheEntry(cache, key, keys, _vnode)
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode: ?VNode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy()
+function pruneCacheEntry (
+  cache: VNodeCache,
+  key: string,
+  keys: Array<string>,
+  current?: VNode
+) {
+  const cached = cache[key]
+  if (cached && cached !== current) {
+    cached.componentInstance.$destroy()
   }
+  cache[key] = null
+  remove(keys, key)
 }
 
+const patternTypes: Array<Function> = [String, RegExp, Array]
+
 export default {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created () {
     this.cache = Object.create(null)
+    this.keys = []
   },
 
   destroyed () {
     for (const key in this.cache) {
-      pruneCacheEntry(this.cache[key])
+      pruneCacheEntry(this.cache, key, this.keys)
     }
   },
 
   watch: {
     include (val: string | RegExp | Array<string>) {
-      pruneCache(this.cache, this._vnode, name => matches(val, name))
+      pruneCache(this, name => matches(val, name))
     },
     exclude (val: string | RegExp | Array<string>) {
-      pruneCache(this.cache, this._vnode, name => !matches(val, name))
+      pruneCache(this, name => !matches(val, name))
     }
   },
 
@@ -84,16 +92,27 @@ export default {
       )) {
         return vnode
       }
+
+      const { cache, keys } = this
       const key: ?string = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? `::${componentOptions.tag}` : '')
         : vnode.key
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance
+        // make current key freshest
+        remove(keys, key)
+        keys.push(key)
       } else {
-        this.cache[key] = vnode
+        cache[key] = vnode
+        keys.push(key)
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode)
+        }
       }
+
       vnode.data.keepAlive = true
     }
     return vnode
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index dd3e3903b83..d6dad4e1d6d 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -946,5 +946,71 @@ describe('Component keep-alive', () => {
         }).then(done)
       }
     })
+
+    it('max', done => {
+      const spyA = jasmine.createSpy()
+      const spyB = jasmine.createSpy()
+      const spyC = jasmine.createSpy()
+      const spyAD = jasmine.createSpy()
+      const spyBD = jasmine.createSpy()
+      const spyCD = jasmine.createSpy()
+
+      function assertCount (calls) {
+        expect([
+          spyA.calls.count(),
+          spyAD.calls.count(),
+          spyB.calls.count(),
+          spyBD.calls.count(),
+          spyC.calls.count(),
+          spyCD.calls.count()
+        ]).toEqual(calls)
+      }
+
+      const vm = new Vue({
+        template: `
+          <keep-alive max="2">
+            <component :is="n"></component>
+          </keep-alive>
+        `,
+        data: {
+          n: 'aa'
+        },
+        components: {
+          aa: {
+            template: '<div>a</div>',
+            created: spyA,
+            destroyed: spyAD
+          },
+          bb: {
+            template: '<div>bbb</div>',
+            created: spyB,
+            destroyed: spyBD
+          },
+          cc: {
+            template: '<div>ccc</div>',
+            created: spyC,
+            destroyed: spyCD
+          }
+        }
+      }).$mount()
+
+      assertCount([1, 0, 0, 0, 0, 0])
+      vm.n = 'bb'
+      waitForUpdate(() => {
+        assertCount([1, 0, 1, 0, 0, 0])
+        vm.n = 'cc'
+      }).then(() => {
+        // should prune A because max cache reached
+        assertCount([1, 1, 1, 0, 1, 0])
+        vm.n = 'bb'
+      }).then(() => {
+        // B should be reused, and made latest
+        assertCount([1, 1, 1, 0, 1, 0])
+        vm.n = 'aa'
+      }).then(() => {
+        // C should be pruned because B was used last so C is the oldest cached
+        assertCount([2, 1, 1, 0, 1, 1])
+      }).then(done)
+    })
   }
 })

From f881dd175a6764f6f80077df20f950dba63ca447 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 22:42:56 -0400
Subject: [PATCH 136/911] feat(ssr): renderToString return Promise

close #6160
---
 .../bundle-renderer/create-bundle-renderer.js | 11 ++++++-
 src/server/create-renderer.js                 | 24 +++++++++-----
 src/server/util.js                            | 13 ++++++++
 test/ssr/ssr-bundle-render.spec.js            | 31 ++++++++++++++++++-
 test/ssr/ssr-string.spec.js                   | 23 ++++++++++++++
 5 files changed, 93 insertions(+), 9 deletions(-)

diff --git a/src/server/bundle-renderer/create-bundle-renderer.js b/src/server/bundle-renderer/create-bundle-renderer.js
index 3b6e23769f5..05c60c35740 100644
--- a/src/server/bundle-renderer/create-bundle-renderer.js
+++ b/src/server/bundle-renderer/create-bundle-renderer.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import { createPromiseCallback } from '../util'
 import { createBundleRunner } from './create-bundle-runner'
 import type { Renderer, RenderOptions } from '../create-renderer'
 import { createSourceMapConsumers, rewriteErrorTrace } from './source-map-support'
@@ -85,11 +86,17 @@ export function createBundleRendererCreator (
     )
 
     return {
-      renderToString: (context?: Object, cb: (err: ?Error, res: ?string) => void) => {
+      renderToString: (context?: Object, cb: any) => {
         if (typeof context === 'function') {
           cb = context
           context = {}
         }
+
+        let promise
+        if (!cb) {
+          ({ promise, cb } = createPromiseCallback())
+        }
+
         run(context).catch(err => {
           rewriteErrorTrace(err, maps)
           cb(err)
@@ -101,6 +108,8 @@ export function createBundleRendererCreator (
             })
           }
         })
+
+        return promise
       },
 
       renderToStream: (context?: Object) => {
diff --git a/src/server/create-renderer.js b/src/server/create-renderer.js
index 5e76bb82555..4345f812649 100644
--- a/src/server/create-renderer.js
+++ b/src/server/create-renderer.js
@@ -3,11 +3,12 @@
 import RenderStream from './render-stream'
 import { createWriteFunction } from './write'
 import { createRenderFunction } from './render'
+import { createPromiseCallback } from './util'
 import TemplateRenderer from './template-renderer/index'
 import type { ClientManifest } from './template-renderer/index'
 
 export type Renderer = {
-  renderToString: (component: Component, context: any, cb: any) => void;
+  renderToString: (component: Component, context: any, cb: any) => ?Promise<string>;
   renderToStream: (component: Component, context?: Object) => stream$Readable;
 };
 
@@ -52,30 +53,39 @@ export function createRenderer ({
     renderToString (
       component: Component,
       context: any,
-      done: any
-    ): void {
+      cb: any
+    ): ?Promise<string> {
       if (typeof context === 'function') {
-        done = context
+        cb = context
         context = {}
       }
       if (context) {
         templateRenderer.bindRenderFns(context)
       }
+
+      // no callback, return Promise
+      let promise
+      if (!cb) {
+        ({ promise, cb } = createPromiseCallback())
+      }
+
       let result = ''
       const write = createWriteFunction(text => {
         result += text
         return false
-      }, done)
+      }, cb)
       try {
         render(component, write, context, () => {
           if (template) {
             result = templateRenderer.renderSync(result, context)
           }
-          done(null, result)
+          cb(null, result)
         })
       } catch (e) {
-        done(e)
+        cb(e)
       }
+
+      return promise
     },
 
     renderToStream (
diff --git a/src/server/util.js b/src/server/util.js
index 31a288d2fd4..908f8c9df06 100644
--- a/src/server/util.js
+++ b/src/server/util.js
@@ -3,3 +3,16 @@
 export const isJS = (file: string): boolean => /\.js(\?[^.]+)?$/.test(file)
 
 export const isCSS = (file: string): boolean => /\.css(\?[^.]+)?$/.test(file)
+
+export function createPromiseCallback () {
+  let resolve, reject
+  const promise: Promise<string> = new Promise((_resolve, _reject) => {
+    resolve = _resolve
+    reject = _reject
+  })
+  const cb = (err: Error, res?: string) => {
+    if (err) return reject(err)
+    resolve(res || '')
+  }
+  return { promise, cb }
+}
diff --git a/test/ssr/ssr-bundle-render.spec.js b/test/ssr/ssr-bundle-render.spec.js
index 6b9588e926a..8ea05b32172 100644
--- a/test/ssr/ssr-bundle-render.spec.js
+++ b/test/ssr/ssr-bundle-render.spec.js
@@ -95,7 +95,7 @@ function createAssertions (runInNewContext) {
   })
 
   it('renderToStream catch Promise rejection', done => {
-    createRenderer('error.js', { runInNewContext }, renderer => {
+    createRenderer('promise-rejection.js', { runInNewContext }, renderer => {
       const stream = renderer.renderToStream()
       stream.on('error', err => {
         expect(err.message).toBe('foo')
@@ -277,4 +277,33 @@ function createAssertions (runInNewContext) {
       })
     })
   })
+
+  it('renderToString return Promise', done => {
+    createRenderer('app.js', { runInNewContext }, renderer => {
+      const context = { url: '/test' }
+      renderer.renderToString(context).then(res => {
+        expect(res).toBe('<div data-server-rendered="true">/test</div>')
+        expect(context.msg).toBe('hello')
+        done()
+      })
+    })
+  })
+
+  it('renderToString return Promise (error)', done => {
+    createRenderer('error.js', { runInNewContext }, renderer => {
+      renderer.renderToString().catch(err => {
+        expect(err.message).toBe('foo')
+        done()
+      })
+    })
+  })
+
+  it('renderToString return Promise (Promise rejection)', done => {
+    createRenderer('promise-rejection.js', { runInNewContext }, renderer => {
+      renderer.renderToString().catch(err => {
+        expect(err.message).toBe('foo')
+        done()
+      })
+    })
+  })
 }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 3f0cc92f6ad..547ba19e39c 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -957,6 +957,29 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('return Promise', done => {
+    renderToString(new Vue({
+      template: `<div>{{ foo }}</div>`,
+      data: { foo: 'bar' }
+    })).then(res => {
+      expect(res).toBe(`<div data-server-rendered="true">bar</div>`)
+      done()
+    })
+  })
+
+  it('should Promise (error)', done => {
+    Vue.config.silent = true
+    renderToString(new Vue({
+      render () {
+        throw new Error('foobar')
+      }
+    })).catch(err => {
+      expect(err.toString()).toContain(`foobar`)
+      Vue.config.silent = false
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 7bc899ce0ec10be3fbd4bd7e78b66dd357249c81 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Oct 2017 23:08:09 -0400
Subject: [PATCH 137/911] feat(ssr): add shouldPrefetch option

close #5964
---
 src/server/create-renderer.js         |  3 ++
 src/server/template-renderer/index.js | 59 +++++++++++++++------------
 test/ssr/ssr-template.spec.js         | 25 +++++++++++-
 3 files changed, 60 insertions(+), 27 deletions(-)

diff --git a/src/server/create-renderer.js b/src/server/create-renderer.js
index 4345f812649..8be2c449681 100644
--- a/src/server/create-renderer.js
+++ b/src/server/create-renderer.js
@@ -27,6 +27,7 @@ export type RenderOptions = {
   inject?: boolean;
   basedir?: string;
   shouldPreload?: Function;
+  shouldPrefetch?: Function;
   clientManifest?: ClientManifest;
   runInNewContext?: boolean | 'once';
 };
@@ -39,6 +40,7 @@ export function createRenderer ({
   inject,
   cache,
   shouldPreload,
+  shouldPrefetch,
   clientManifest
 }: RenderOptions = {}): Renderer {
   const render = createRenderFunction(modules, directives, isUnaryTag, cache)
@@ -46,6 +48,7 @@ export function createRenderer ({
     template,
     inject,
     shouldPreload,
+    shouldPrefetch,
     clientManifest
   })
 
diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index ac549b289d2..48aa0caa68d 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -15,6 +15,7 @@ type TemplateRendererOptions = {
   inject?: boolean;
   clientManifest?: ClientManifest;
   shouldPreload?: (file: string, type: string) => boolean;
+  shouldPrefetch?: (file: string, type: string) => boolean;
 };
 
 export type ClientManifest = {
@@ -30,7 +31,7 @@ export type ClientManifest = {
   }
 };
 
-type PreloadFile = {
+type Resource = {
   file: string;
   extension: string;
   fileWithoutQuery: string;
@@ -43,8 +44,8 @@ export default class TemplateRenderer {
   parsedTemplate: ParsedTemplate | null;
   publicPath: string;
   clientManifest: ClientManifest;
-  preloadFiles: Array<string>;
-  prefetchFiles: Array<string>;
+  preloadFiles: Array<Resource>;
+  prefetchFiles: Array<Resource>;
   mapFiles: AsyncFileMapper;
 
   constructor (options: TemplateRendererOptions) {
@@ -61,8 +62,8 @@ export default class TemplateRenderer {
       const clientManifest = this.clientManifest = options.clientManifest
       this.publicPath = clientManifest.publicPath.replace(/\/$/, '')
       // preload/prefetch directives
-      this.preloadFiles = clientManifest.initial
-      this.prefetchFiles = clientManifest.async
+      this.preloadFiles = (clientManifest.initial || []).map(normalizeFile)
+      this.prefetchFiles = (clientManifest.async || []).map(normalizeFile)
       // initial async chunk mapping
       this.mapFiles = createMapper(clientManifest)
     }
@@ -125,19 +126,10 @@ export default class TemplateRenderer {
     return this.renderPreloadLinks(context) + this.renderPrefetchLinks(context)
   }
 
-  getPreloadFiles (context: Object): Array<PreloadFile> {
+  getPreloadFiles (context: Object): Array<Resource> {
     const usedAsyncFiles = this.getUsedAsyncFiles(context)
     if (this.preloadFiles || usedAsyncFiles) {
-      return (this.preloadFiles || []).concat(usedAsyncFiles || []).map(file => {
-        const withoutQuery = file.replace(/\?.*/, '')
-        const extension = path.extname(withoutQuery).slice(1)
-        return {
-          file,
-          extension,
-          fileWithoutQuery: withoutQuery,
-          asType: getPreloadType(extension)
-        }
-      })
+      return (this.preloadFiles || []).concat(usedAsyncFiles || [])
     } else {
       return []
     }
@@ -145,10 +137,10 @@ export default class TemplateRenderer {
 
   renderPreloadLinks (context: Object): string {
     const files = this.getPreloadFiles(context)
+    const shouldPreload = this.options.shouldPreload
     if (files.length) {
       return files.map(({ file, extension, fileWithoutQuery, asType }) => {
         let extra = ''
-        const shouldPreload = this.options.shouldPreload
         // by default, we only preload scripts or css
         if (!shouldPreload && asType !== 'script' && asType !== 'style') {
           return ''
@@ -174,17 +166,20 @@ export default class TemplateRenderer {
   }
 
   renderPrefetchLinks (context: Object): string {
+    const shouldPrefetch = this.options.shouldPrefetch
     if (this.prefetchFiles) {
       const usedAsyncFiles = this.getUsedAsyncFiles(context)
       const alreadyRendered = file => {
-        return usedAsyncFiles && usedAsyncFiles.some(f => f === file)
+        return usedAsyncFiles && usedAsyncFiles.some(f => f.file === file)
       }
-      return this.prefetchFiles.map(file => {
-        if (!alreadyRendered(file)) {
-          return `<link rel="prefetch" href="${this.publicPath}/${file}">`
-        } else {
+      return this.prefetchFiles.map(({ file, fileWithoutQuery, asType }) => {
+        if (shouldPrefetch && !shouldPrefetch(fileWithoutQuery, asType)) {
+          return ''
+        }
+        if (alreadyRendered(file)) {
           return ''
         }
+        return `<link rel="prefetch" href="${this.publicPath}/${file}">`
       }).join('')
     } else {
       return ''
@@ -205,10 +200,10 @@ export default class TemplateRenderer {
 
   renderScripts (context: Object): string {
     if (this.clientManifest) {
-      const initial = this.clientManifest.initial
+      const initial = this.preloadFiles
       const async = this.getUsedAsyncFiles(context)
       const needed = [initial[0]].concat(async || [], initial.slice(1))
-      return needed.filter(isJS).map(file => {
+      return needed.filter(({ file }) => isJS(file)).map(({ file }) => {
         return `<script src="${this.publicPath}/${file}" defer></script>`
       }).join('')
     } else {
@@ -216,9 +211,10 @@ export default class TemplateRenderer {
     }
   }
 
-  getUsedAsyncFiles (context: Object): ?Array<string> {
+  getUsedAsyncFiles (context: Object): ?Array<Resource> {
     if (!context._mappedFiles && context._registeredComponents && this.mapFiles) {
-      context._mappedFiles = this.mapFiles(Array.from(context._registeredComponents))
+      const registered = Array.from(context._registeredComponents)
+      context._mappedFiles = this.mapFiles(registered).map(normalizeFile)
     }
     return context._mappedFiles
   }
@@ -232,6 +228,17 @@ export default class TemplateRenderer {
   }
 }
 
+function normalizeFile (file: string): Resource {
+  const withoutQuery = file.replace(/\?.*/, '')
+  const extension = path.extname(withoutQuery).slice(1)
+  return {
+    file,
+    extension,
+    fileWithoutQuery: withoutQuery,
+    asType: getPreloadType(extension)
+  }
+}
+
 function getPreloadType (ext: string): string {
   if (ext === 'js') {
     return 'script'
diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index c0a5fca5c78..ad7c0413850 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -230,7 +230,7 @@ describe('SSR: template option', () => {
       (options.preloadOtherAssets ? `<link rel="preload" href="/test.png" as="image">` : ``) +
       (options.preloadOtherAssets ? `<link rel="preload" href="/test.woff2" as="font" type="font/woff2" crossorigin>` : ``) +
       // unused chunks should have prefetch
-      `<link rel="prefetch" href="/1.js">` +
+      (options.noPrefetch ? `` : `<link rel="prefetch" href="/1.js">`) +
       // css assets should be loaded
       `<link rel="stylesheet" href="/test.css">` +
     `</head><body>` +
@@ -281,6 +281,29 @@ describe('SSR: template option', () => {
       })
     })
 
+    it('bundleRenderer + renderToStream + clientManifest + shouldPrefetch', done => {
+      createRendererWithManifest('split.js', {
+        runInNewContext,
+        shouldPrefetch: (file, type) => {
+          if (type === 'script') {
+            return false
+          }
+        }
+      }, renderer => {
+        const stream = renderer.renderToStream({ state: { a: 1 }})
+        let res = ''
+        stream.on('data', chunk => {
+          res += chunk.toString()
+        })
+        stream.on('end', () => {
+          expect(res).toContain(expectedHTMLWithManifest({
+            noPrefetch: true
+          }))
+          done()
+        })
+      })
+    })
+
     it('bundleRenderer + renderToString + clientManifest + inject: false', done => {
       createRendererWithManifest('split.js', {
         runInNewContext,

From 64e394384291f18bfbced6c8947c88f4bbf6545e Mon Sep 17 00:00:00 2001
From: Alexander Eden <AlexanderEden91@gmail.com>
Date: Fri, 6 Oct 2017 09:32:16 -0500
Subject: [PATCH 138/911] types: extend keyCodes type declaration to allow
 array of numbers (#6745)

---
 types/vue.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/vue.d.ts b/types/vue.d.ts
index d1cecb33093..338a9ad2399 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -80,7 +80,7 @@ export declare class Vue {
     errorHandler(err: Error, vm: Vue, info: string): void;
     warnHandler(msg: string, vm: Vue, trace: string): void;
     ignoredElements: string[];
-    keyCodes: { [key: string]: number };
+    keyCodes: { [key: string]: number | number[] };
   }
 
   static extend(options: ComponentOptions<Vue> | FunctionalComponentOptions): typeof Vue;

From db138e2254d71f6b96e033acf66ba43ad269841a Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Fri, 6 Oct 2017 13:45:14 -0500
Subject: [PATCH 139/911] feat(types): further improve Vue type declarations
 for canonical usage (#6391)

---
 package.json                    |   4 +-
 types/index.d.ts                |  63 ++++++++--------
 types/options.d.ts              | 129 +++++++++++++++++++++++---------
 types/test/augmentation-test.ts |  21 ++++--
 types/test/options-test.ts      | 113 ++++++++++++++++++++++------
 types/test/plugin-test.ts       |   2 +-
 types/test/tsconfig.json        |   3 +-
 types/test/vue-test.ts          |  87 ++++++++++++++++++++-
 types/tsconfig.json             |  11 +++
 types/vue.d.ts                  | 118 ++++++++++++++++-------------
 10 files changed, 394 insertions(+), 157 deletions(-)
 create mode 100644 types/tsconfig.json

diff --git a/package.json b/package.json
index ec19e520331..b9a9d005e26 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "eslint": "^3.0.0",
     "eslint-loader": "^1.7.1",
     "eslint-plugin-flowtype": "^2.34.0",
-    "eslint-plugin-jasmine": "^2.2.0",
+    "eslint-plugin-jasmine": "^2.8.4",
     "eslint-plugin-vue-libs": "^1.2.0",
     "file-loader": "^0.11.2",
     "flow-bin": "^0.54.0",
@@ -119,7 +119,7 @@
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
     "shelljs": "^0.7.8",
-    "typescript": "^2.3.4",
+    "typescript": "^2.5.2",
     "uglify-js": "^3.0.15",
     "webpack": "^2.6.1",
     "weex-js-runtime": "^0.22.0"
diff --git a/types/index.d.ts b/types/index.d.ts
index 28350fcfdbe..da58517f42f 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -1,37 +1,36 @@
-import * as V from "./vue";
-import * as Options from "./options";
-import * as Plugin from "./plugin";
-import * as VNode from "./vnode";
+import { Vue } from "./vue";
 
-// `Vue` in `export = Vue` must be a namespace
-// All available types are exported via this namespace
-declare namespace Vue {
-  export type CreateElement = V.CreateElement;
+export default Vue;
 
-  export type Component = Options.Component;
-  export type AsyncComponent = Options.AsyncComponent;
-  export type ComponentOptions<V extends Vue> = Options.ComponentOptions<V>;
-  export type FunctionalComponentOptions = Options.FunctionalComponentOptions;
-  export type RenderContext = Options.RenderContext;
-  export type PropOptions = Options.PropOptions;
-  export type ComputedOptions<V extends Vue> = Options.ComputedOptions<V>;
-  export type WatchHandler<V extends Vue> = Options.WatchHandler<V, any>;
-  export type WatchOptions = Options.WatchOptions;
-  export type DirectiveFunction = Options.DirectiveFunction;
-  export type DirectiveOptions = Options.DirectiveOptions;
+export {
+  CreateElement
+} from "./vue";
 
-  export type PluginFunction<T> = Plugin.PluginFunction<T>;
-  export type PluginObject<T> = Plugin.PluginObject<T>;
+export {
+  Component,
+  AsyncComponent,
+  ComponentOptions,
+  FunctionalComponentOptions,
+  RenderContext,
+  PropOptions,
+  ComputedOptions,
+  WatchHandler,
+  WatchOptions,
+  WatchOptionsWithHandler,
+  DirectiveFunction,
+  DirectiveOptions
+} from "./options";
 
-  export type VNodeChildren = VNode.VNodeChildren;
-  export type VNodeChildrenArrayContents = VNode.VNodeChildrenArrayContents;
-  export type VNode = VNode.VNode;
-  export type VNodeComponentOptions = VNode.VNodeComponentOptions;
-  export type VNodeData = VNode.VNodeData;
-  export type VNodeDirective = VNode.VNodeDirective;
-}
+export {
+  PluginFunction,
+  PluginObject
+} from "./plugin";
 
-// TS cannot merge imported class with namespace, declare a subclass to bypass
-declare class Vue extends V.Vue {}
-
-export = Vue;
+export {
+  VNodeChildren,
+  VNodeChildrenArrayContents,
+  VNode,
+  VNodeComponentOptions,
+  VNodeData,
+  VNodeDirective
+} from "./vnode";
diff --git a/types/options.d.ts b/types/options.d.ts
index b28a228a6c8..7cba394e02e 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -1,48 +1,88 @@
-import { Vue, CreateElement } from "./vue";
+import { Vue, CreateElement, CombinedVueInstance } from "./vue";
 import { VNode, VNodeData, VNodeDirective } from "./vnode";
 
 type Constructor = {
   new (...args: any[]): any;
 }
 
-export type Component = typeof Vue | ComponentOptions<Vue> | FunctionalComponentOptions;
+// we don't support infer props in async component
+export type Component<Data=DefaultData<Vue>, Methods=DefaultMethods<Vue>, Computed=DefaultComputed, Props=DefaultProps> =
+  | typeof Vue
+  | FunctionalComponentOptions<Props>
+  | ThisTypedComponentOptionsWithArrayProps<Vue, Data, Methods, Computed, keyof Props>
+  | ThisTypedComponentOptionsWithRecordProps<Vue, Data, Methods, Computed, Props>;
 
 interface EsModuleComponent {
   default: Component
 }
 
-export type AsyncComponent = (
-  resolve: (component: Component) => void,
+export type AsyncComponent<Data=DefaultData<Vue>, Methods=DefaultMethods<Vue>, Computed=DefaultComputed, Props=DefaultProps> = (
+  resolve: (component: Component<Data, Methods, Computed, Props>) => void,
   reject: (reason?: any) => void
-) => Promise<Component | EsModuleComponent> | Component | void;
+) => Promise<Component | EsModuleComponent> | void;
+
+/**
+ * When the `Computed` type parameter on `ComponentOptions` is inferred,
+ * it should have a property with the return type of every get-accessor.
+ * Since there isn't a way to query for the return type of a function, we allow TypeScript
+ * to infer from the shape of `Accessors<Computed>` and work backwards.
+ */
+export type Accessors<T> = {
+  [K in keyof T]: (() => T[K]) | ComputedOptions<T[K]>
+}
 
-export interface ComponentOptions<V extends Vue> {
-  data?: Object | ((this: V) => Object);
-  props?: string[] | { [key: string]: PropOptions | Constructor | Constructor[] };
+/**
+ * This type should be used when an array of strings is used for a component's `props` value.
+ */
+export type ThisTypedComponentOptionsWithArrayProps<V extends Vue, Data, Methods, Computed, PropNames extends string> =
+  object &
+  ComponentOptions<V, Data | ((this: Readonly<Record<PropNames, any>> & V) => Data), Methods, Computed, PropNames[]> &
+  ThisType<CombinedVueInstance<V, Data, Methods, Computed, Readonly<Record<PropNames, any>>>>;
+
+/**
+ * This type should be used when an object mapped to `PropOptions` is used for a component's `props` value.
+ */
+export type ThisTypedComponentOptionsWithRecordProps<V extends Vue, Data, Methods, Computed, Props> =
+  object &
+  ComponentOptions<V, Data | ((this: Readonly<Props> & V) => Data), Methods, Computed, RecordPropsDefinition<Props>> &
+  ThisType<CombinedVueInstance<V, Data, Methods, Computed, Readonly<Props>>>;
+
+type DefaultData<V> =  object | ((this: V) => object);
+type DefaultProps = Record<string, any>;
+type DefaultMethods<V> =  { [key: string]: (this: V, ...args: any[]) => any };
+type DefaultComputed = { [key: string]: any };
+export interface ComponentOptions<
+  V extends Vue,
+  Data=DefaultData<V>,
+  Methods=DefaultMethods<V>,
+  Computed=DefaultComputed,
+  PropsDef=PropsDefinition<DefaultProps>> {
+  data?: Data;
+  props?: PropsDef;
   propsData?: Object;
-  computed?: { [key: string]: ((this: V) => any) | ComputedOptions<V> };
-  methods?: { [key: string]: (this: V, ...args: any[]) => any };
-  watch?: { [key: string]: ({ handler: WatchHandler<V, any> } & WatchOptions) | WatchHandler<V, any> | string };
+  computed?: Accessors<Computed>;
+  methods?: Methods;
+  watch?: Record<string, WatchOptionsWithHandler<any> | WatchHandler<any> | string>;
 
   el?: Element | String;
   template?: string;
-  render?(this: V, createElement: CreateElement): VNode;
+  render?(createElement: CreateElement): VNode;
   renderError?: (h: () => VNode, err: Error) => VNode;
   staticRenderFns?: ((createElement: CreateElement) => VNode)[];
 
   beforeCreate?(this: V): void;
-  created?(this: V): void;
-  beforeDestroy?(this: V): void;
-  destroyed?(this: V): void;
-  beforeMount?(this: V): void;
-  mounted?(this: V): void;
-  beforeUpdate?(this: V): void;
-  updated?(this: V): void;
-  activated?(this: V): void;
-  deactivated?(this: V): void;
-
-  directives?: { [key: string]: DirectiveOptions | DirectiveFunction };
-  components?: { [key: string]: Component | AsyncComponent };
+  created?(): void;
+  beforeDestroy?(): void;
+  destroyed?(): void;
+  beforeMount?(): void;
+  mounted?(): void;
+  beforeUpdate?(): void;
+  updated?(): void;
+  activated?(): void;
+  deactivated?(): void;
+
+  directives?: { [key: string]: DirectiveFunction | DirectiveOptions };
+  components?: { [key: string]: Component<any, any, any, any> | AsyncComponent<any, any, any, any> };
   transitions?: { [key: string]: Object };
   filters?: { [key: string]: Function };
 
@@ -57,22 +97,23 @@ export interface ComponentOptions<V extends Vue> {
   parent?: Vue;
   mixins?: (ComponentOptions<Vue> | typeof Vue)[];
   name?: string;
+  // TODO: support properly inferred 'extends'
   extends?: ComponentOptions<Vue> | typeof Vue;
   delimiters?: [string, string];
   comments?: boolean;
   inheritAttrs?: boolean;
 }
 
-export interface FunctionalComponentOptions {
+export interface FunctionalComponentOptions<Props = DefaultProps, PropDefs = PropsDefinition<Props>> {
   name?: string;
-  props?: string[] | { [key: string]: PropOptions | Constructor | Constructor[] };
+  props?: PropDefs;
   inject?: { [key: string]: string | symbol } | string[];
   functional: boolean;
-  render(this: never, createElement: CreateElement, context: RenderContext): VNode | void;
+  render(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode;
 }
 
-export interface RenderContext {
-  props: any;
+export interface RenderContext<Props=DefaultProps> {
+  props: Props;
   children: VNode[];
   slots(): any;
   data: VNodeData;
@@ -80,26 +121,40 @@ export interface RenderContext {
   injections: any
 }
 
-export interface PropOptions {
-  type?: Constructor | Constructor[] | null;
+export type Prop<T> = { (): T } | { new (...args: any[]): T & object }
+
+export type PropValidator<T> = PropOptions<T> | Prop<T> | Prop<T>[];
+
+export interface PropOptions<T=any> {
+  type?: Prop<T> | Prop<T>[];
   required?: boolean;
-  default?: any;
-  validator?(value: any): boolean;
+  default?: T | null | undefined | (() => object);
+  validator?(value: T): boolean;
 }
 
-export interface ComputedOptions<V> {
-  get?(this: V): any;
-  set?(this: V, value: any): void;
+export type RecordPropsDefinition<T> = {
+  [K in keyof T]: PropValidator<T[K]>
+}
+export type ArrayPropsDefinition<T> = (keyof T)[];
+export type PropsDefinition<T> = ArrayPropsDefinition<T> | RecordPropsDefinition<T>;
+
+export interface ComputedOptions<T> {
+  get?(): T;
+  set?(value: T): void;
   cache?: boolean;
 }
 
-export type WatchHandler<V, T> = (this: V, val: T, oldVal: T) => void;
+export type WatchHandler<T> = (val: T, oldVal: T) => void;
 
 export interface WatchOptions {
   deep?: boolean;
   immediate?: boolean;
 }
 
+export interface WatchOptionsWithHandler<T> extends WatchOptions {
+  handler: WatchHandler<T>;
+}
+
 export type DirectiveFunction = (
   el: HTMLElement,
   binding: VNodeDirective,
diff --git a/types/test/augmentation-test.ts b/types/test/augmentation-test.ts
index dd569052be4..bb77672103e 100644
--- a/types/test/augmentation-test.ts
+++ b/types/test/augmentation-test.ts
@@ -1,4 +1,4 @@
-import Vue = require("../index");
+import Vue from "../index";
 
 declare module "../vue" {
   // add instance property and method
@@ -8,9 +8,9 @@ declare module "../vue" {
   }
 
   // add static property and method
-  namespace Vue {
-    const staticProperty: string;
-    function staticMethod(): void;
+  interface VueConstructor {
+    staticProperty: string;
+    staticMethod(): void;
   }
 }
 
@@ -22,10 +22,21 @@ declare module "../options" {
 }
 
 const vm = new Vue({
+  props: ["bar"],
   data: {
     a: true
   },
-  foo: "foo"
+  foo: "foo",
+  methods: {
+    foo() {
+      this.a = false;
+    }
+  },
+  computed: {
+    BAR(): string {
+      return this.bar.toUpperCase();
+    }
+  }
 });
 
 vm.$instanceProperty;
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index cbd5be1423f..6a94d95c79a 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -1,14 +1,76 @@
-import Vue = require("../index");
+import Vue from "../index";
 import { AsyncComponent, ComponentOptions, FunctionalComponentOptions } from "../index";
+import { CreateElement } from "../vue";
 
 interface Component extends Vue {
   a: number;
 }
 
+Vue.component('sub-component', {
+  components: {
+    a: Vue.component(""),
+    b: {}
+  }
+});
+
+Vue.component('prop-component', {
+  props: {
+    size: Number,
+    name: {
+      type: String,
+      default: '0',
+      required: true,
+    }
+  },
+  data() {
+    return {
+      fixedSize: this.size.toFixed(),
+      capName: this.name.toUpperCase()
+    }
+  }
+});
+
+Vue.component('string-prop', {
+  props: ['size', 'name'],
+  data() {
+    return {
+      fixedSize: this.size.whatever,
+      capName: this.name.isany
+    }
+  }
+});
+
+class User {
+  private u: number
+}
+class Cat {
+  private u: number
+}
+
+Vue.component('union-prop', {
+  props: {
+    primitive: [String, Number],
+    object: [Cat, User],
+    regex: RegExp,
+    mixed: [RegExp, Array],
+    union: [User, Number] as {new(): User | Number}[] // requires annotation
+  },
+  data() {
+    this.primitive;
+    this.object;
+    this.union;
+    this.regex.compile;
+    this.mixed;
+    return {
+      fixedSize: this.union,
+    }
+  }
+});
+
 Vue.component('component', {
   data() {
     this.$mount
-    this.a
+    this.size
     return {
       a: 1
     }
@@ -17,25 +79,22 @@ Vue.component('component', {
     size: Number,
     name: {
       type: String,
-      default: 0,
+      default: '0',
       required: true,
-      validator(value) {
-        return value > 0;
-      }
     }
   },
   propsData: {
     msg: "Hello"
   },
   computed: {
-    aDouble(this: Component) {
+    aDouble(): number {
       return this.a * 2;
     },
     aPlus: {
-      get(this: Component) {
+      get(): number {
         return this.a + 1;
       },
-      set(this: Component, v: number) {
+      set(v: number) {
         this.a = v - 1;
       },
       cache: false
@@ -44,6 +103,9 @@ Vue.component('component', {
   methods: {
     plus() {
       this.a++;
+      this.aDouble.toFixed();
+      this.aPlus = 1;
+      this.size.toFixed();
     }
   },
   watch: {
@@ -92,15 +154,15 @@ Vue.component('component', {
       createElement("div", "message"),
       createElement(Vue.component("component")),
       createElement({} as ComponentOptions<Vue>),
-      createElement({ functional: true, render () {}}),
+      createElement({
+        functional: true,
+        render(c: CreateElement) {
+          return createElement()
+        }
+      }),
 
       createElement(() => Vue.component("component")),
       createElement(() => ( {} as ComponentOptions<Vue> )),
-      createElement(() => {
-        return new Promise((resolve) => {
-          resolve({} as ComponentOptions<Vue>);
-        })
-      }),
       createElement((resolve, reject) => {
         resolve({} as ComponentOptions<Vue>);
         reject();
@@ -114,7 +176,7 @@ Vue.component('component', {
   staticRenderFns: [],
 
   beforeCreate() {
-    this.a = 1;
+    (this as any).a = 1;
   },
   created() {},
   beforeDestroy() {},
@@ -160,7 +222,7 @@ Vue.component('component', {
   name: "Component",
   extends: {} as ComponentOptions<Vue>,
   delimiters: ["${", "}"]
-} as ComponentOptions<Component>);
+});
 
 Vue.component('component-with-scoped-slot', {
   render (h) {
@@ -183,15 +245,15 @@ Vue.component('component-with-scoped-slot', {
   },
   components: {
     child: {
-      render (h) {
+      render (this: Vue, h: CreateElement) {
         return h('div', [
           this.$scopedSlots['default']({ msg: 'hi' }),
           this.$scopedSlots['item']({ msg: 'hello' })
         ])
       }
-    } as ComponentOptions<Vue>
+    }
   }
-} as ComponentOptions<Vue>)
+})
 
 Vue.component('functional-component', {
   props: ['prop'],
@@ -205,13 +267,16 @@ Vue.component('functional-component', {
     context.parent;
     return createElement("div", {}, context.children);
   }
-} as FunctionalComponentOptions);
+});
 
 Vue.component('functional-component-object-inject', {
   functional: true,
   inject: {
     foo: 'bar',
     baz: Symbol()
+  },
+  render(h) {
+    return h('div')
   }
 })
 
@@ -220,8 +285,8 @@ Vue.component("async-component", ((resolve, reject) => {
     resolve(Vue.component("component"));
   }, 0);
   return new Promise((resolve) => {
-    resolve({ functional: true } as FunctionalComponentOptions);
+    resolve({ functional: true });
   })
-}) as AsyncComponent);
+}));
 
-Vue.component('async-es-module-component', (() => import('./es-module')) as AsyncComponent)
+Vue.component('async-es-module-component', () => import('./es-module'))
diff --git a/types/test/plugin-test.ts b/types/test/plugin-test.ts
index 211f248ac9e..15055614e80 100644
--- a/types/test/plugin-test.ts
+++ b/types/test/plugin-test.ts
@@ -1,4 +1,4 @@
-import Vue = require("../index");
+import Vue from "../index";
 import { PluginFunction, PluginObject } from "../index";
 
 class Option {
diff --git a/types/test/tsconfig.json b/types/test/tsconfig.json
index cbc565a7c53..be0fef22ace 100644
--- a/types/test/tsconfig.json
+++ b/types/test/tsconfig.json
@@ -6,8 +6,7 @@
       "es2015"
     ],
     "module": "commonjs",
-    "noImplicitAny": true,
-    "strictNullChecks": true,
+    "strict": true,
     "noEmit": true
   },
   "files": [
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 50605998999..e497c60242a 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -1,4 +1,5 @@
-import Vue = require("../index");
+import Vue, { VNode } from "../index";
+import { ComponentOptions } from "../options";
 
 class Test extends Vue {
   a: number;
@@ -90,9 +91,91 @@ class Test extends Vue {
     this.directive("", {bind() {}});
     this.filter("", (value: number) => value);
     this.component("", { data: () => ({}) });
-    this.component("", { functional: true, render () {}});
+    this.component("", { functional: true, render(h) { return h("div", "hello!") } });
     this.use;
     this.mixin(Test);
     this.compile("<div>{{ message }}</div>");
   }
 }
+
+const HelloWorldComponent = Vue.extend({
+  props: ["name"],
+  data() {
+    return {
+      message: "Hello " + this.name,
+    }
+  },
+  computed: {
+    shouted(): string {
+      return this.message.toUpperCase();
+    }
+  },
+  methods: {
+    getMoreExcited() {
+      this.message += "!";
+    }
+  },
+  watch: {
+    message(a: string) {
+      console.log(`Message ${this.message} was changed!`);
+    }
+  }
+});
+
+const FunctionalHelloWorldComponent = Vue.extend({
+  functional: true,
+  props: ["name"],
+  render(createElement, ctxt) {
+    return createElement("div", "Hello " + ctxt.props.name)
+  }
+});
+
+const Parent = Vue.extend({
+  data() {
+    return { greeting: 'Hello' }
+  }
+});
+
+const Child = Parent.extend({
+  methods: {
+    foo() {
+      console.log(this.greeting.toLowerCase());
+    }
+  }
+});
+
+const GrandChild = Child.extend({
+  computed: {
+    lower(): string {
+      return this.greeting.toLowerCase();
+    }
+  }
+});
+
+new GrandChild().lower.toUpperCase();
+for (let _ in (new Test()).$options) {
+}
+declare const options: ComponentOptions<Vue>;
+Vue.extend(options);
+Vue.component('test-comp', options);
+new Vue(options);
+
+// cyclic example
+Vue.extend({
+  props: {
+    bar: {
+      type: String
+    }
+  },
+  methods: {
+    foo() {}
+  },
+  mounted () {
+    this.foo()
+  },
+  // manual annotation
+  render (h): VNode {
+    const a = this.bar
+    return h('canvas', {}, [a])
+  }
+})
diff --git a/types/tsconfig.json b/types/tsconfig.json
new file mode 100644
index 00000000000..dc2f0455c71
--- /dev/null
+++ b/types/tsconfig.json
@@ -0,0 +1,11 @@
+{
+    "compilerOptions": {
+        "strict": true,
+        "lib": [
+            "es2015", "dom"
+        ]
+    },
+    "include": [
+        "./*.ts"
+    ]
+}
\ No newline at end of file
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 338a9ad2399..67c5bd04494 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -3,50 +3,39 @@ import {
   AsyncComponent,
   ComponentOptions,
   FunctionalComponentOptions,
-  WatchOptions,
+  WatchOptionsWithHandler,
   WatchHandler,
   DirectiveOptions,
-  DirectiveFunction
+  DirectiveFunction,
+  RecordPropsDefinition,
+  ThisTypedComponentOptionsWithArrayProps,
+  ThisTypedComponentOptionsWithRecordProps,
+  WatchOptions,
 } from "./options";
 import { VNode, VNodeData, VNodeChildren, ScopedSlot } from "./vnode";
 import { PluginFunction, PluginObject } from "./plugin";
 
-export type CreateElement = {
-  // empty node
-  (): VNode;
-
-  // element or component name
-  (tag: string, children: VNodeChildren): VNode;
-  (tag: string, data?: VNodeData, children?: VNodeChildren): VNode;
-
-  // component constructor or options
-  (tag: Component, children: VNodeChildren): VNode;
-  (tag: Component, data?: VNodeData, children?: VNodeChildren): VNode;
-
-  // async component
-  (tag: AsyncComponent, children: VNodeChildren): VNode;
-  (tag: AsyncComponent, data?: VNodeData, children?: VNodeChildren): VNode;
+export interface CreateElement {
+  (tag?: string | Component<any, any, any, any> | AsyncComponent<any, any, any, any>, children?: VNodeChildren): VNode;
+  (tag?: string | Component<any, any, any, any> | AsyncComponent<any, any, any, any>, data?: VNodeData, children?: VNodeChildren): VNode;
 }
 
-export declare class Vue {
-
-  constructor(options?: ComponentOptions<Vue>);
-
-  $data: Object;
+export interface Vue {
   readonly $el: HTMLElement;
   readonly $options: ComponentOptions<this>;
   readonly $parent: Vue;
   readonly $root: Vue;
   readonly $children: Vue[];
-  readonly $refs: { [key: string]: Vue | Element | Vue[] | Element[]};
+  readonly $refs: { [key: string]: Vue | Element | Vue[] | Element[] };
   readonly $slots: { [key: string]: VNode[] };
   readonly $scopedSlots: { [key: string]: ScopedSlot };
   readonly $isServer: boolean;
+  readonly $data: Record<string, any>;
+  readonly $props: Record<string, any>;
   readonly $ssrContext: any;
-  readonly $props: any;
   readonly $vnode: VNode;
-  readonly $attrs: { [key: string] : string };
-  readonly $listeners: { [key: string]: Function | Array<Function> };
+  readonly $attrs: Record<string, string>;
+  readonly $listeners: Record<string, Function | Function[]>;
 
   $mount(elementOrSelector?: Element | String, hydrating?: boolean): this;
   $forceUpdate(): void;
@@ -55,12 +44,12 @@ export declare class Vue {
   $delete: typeof Vue.delete;
   $watch(
     expOrFn: string,
-    callback: WatchHandler<this, any>,
+    callback: (this: this, n: any, o: any) => void,
     options?: WatchOptions
   ): (() => void);
   $watch<T>(
     expOrFn: (this: this) => T,
-    callback: WatchHandler<this, T>,
+    callback: (this: this, n: T, o: T) => void,
     options?: WatchOptions
   ): (() => void);
   $on(event: string | string[], callback: Function): this;
@@ -70,8 +59,54 @@ export declare class Vue {
   $nextTick(callback: (this: this) => void): void;
   $nextTick(): Promise<void>;
   $createElement: CreateElement;
+}
+
+export type CombinedVueInstance<Instance extends Vue, Data, Methods, Computed, Props> = Instance & Data & Methods & Computed & Props;
+export type ExtendedVue<Instance extends Vue, Data, Methods, Computed, Props> = VueConstructor<CombinedVueInstance<Instance, Data, Methods, Computed, Props> & Vue>;
+
+export interface VueConstructor<V extends Vue = Vue> {
+  new <Data = object, Methods = object, Computed = object, PropNames extends string = never>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): CombinedVueInstance<V, Data, Methods, Computed, Record<PropNames, any>>;
+  // ideally, the return type should just contains Props, not Record<keyof Props, any>. But TS requires Base constructors must all have the same return type.
+  new <Data = object, Methods = object, Computed = object, Props = object>(options?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): CombinedVueInstance<V, Data, Methods, Computed, Record<keyof Props, any>>;
+  new (options?: ComponentOptions<V>): CombinedVueInstance<V, object, object, object, Record<keyof object, any>>;
+
+  extend<PropNames extends string = never>(definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
+  extend<Props>(definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
+  extend<Data, Methods, Computed, PropNames extends string>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
+  extend<Data, Methods, Computed, Props>(options?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
+  extend(options?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
+
+  nextTick(callback: () => void, context?: any[]): void;
+  nextTick(): Promise<void>
+  set<T>(object: Object, key: string, value: T): T;
+  set<T>(array: T[], key: number, value: T): T;
+  delete(object: Object, key: string): void;
+  delete<T>(array: T[], key: number): void;
+
+  directive(
+    id: string,
+    definition?: DirectiveOptions | DirectiveFunction
+  ): DirectiveOptions;
+  filter(id: string, definition?: Function): Function;
 
-  static config: {
+  component(id: string): VueConstructor;
+  component<VC extends VueConstructor>(id: string, constructor: VC): VC;
+  component<Data, Methods, Computed, Props>(id: string, definition: AsyncComponent<Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
+  component<PropNames extends string>(id: string, definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
+  component<Props>(id: string, definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
+  component<Data, Methods, Computed, PropNames extends string>(id: string, definition?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
+  component<Data, Methods, Computed, Props>(id: string, definition?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
+  component(id: string, definition?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
+
+  use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): void;
+  use(plugin: PluginObject<any> | PluginFunction<any>, ...options: any[]): void;
+  mixin(mixin: VueConstructor | ComponentOptions<Vue>): void;
+  compile(template: string): {
+    render(createElement: typeof Vue.prototype.$createElement): VNode;
+    staticRenderFns: (() => VNode)[];
+  };
+
+  config: {
     silent: boolean;
     optionMergeStrategies: any;
     devtools: boolean;
@@ -82,27 +117,6 @@ export declare class Vue {
     ignoredElements: string[];
     keyCodes: { [key: string]: number | number[] };
   }
-
-  static extend(options: ComponentOptions<Vue> | FunctionalComponentOptions): typeof Vue;
-  static nextTick(callback: () => void, context?: any[]): void;
-  static nextTick(): Promise<void>
-  static set<T>(object: Object, key: string, value: T): T;
-  static set<T>(array: T[], key: number, value: T): T;
-  static delete(object: Object, key: string): void;
-  static delete<T>(array: T[], key: number): void;
-
-  static directive(
-    id: string,
-    definition?: DirectiveOptions | DirectiveFunction
-  ): DirectiveOptions;
-  static filter(id: string, definition?: Function): Function;
-  static component(id: string, definition?: Component | AsyncComponent): typeof Vue;
-
-  static use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): void;
-  static use(plugin: PluginObject<any> | PluginFunction<any>, ...options: any[]): void;
-  static mixin(mixin: typeof Vue | ComponentOptions<Vue>): void;
-  static compile(template: string): {
-    render(createElement: typeof Vue.prototype.$createElement): VNode;
-    staticRenderFns: (() => VNode)[];
-  };
 }
+
+export const Vue: VueConstructor;

From 514b90b64770cba9f905d2dff59dfa0e064e580c Mon Sep 17 00:00:00 2001
From: Dominik Rabij <dominik.rabij@gmail.com>
Date: Fri, 6 Oct 2017 21:48:00 +0200
Subject: [PATCH 140/911] fix: add slot v-bind warning (#6736)

close #6677
---
 .../instance/render-helpers/render-slot.js    |  8 ++-
 .../component/component-scoped-slot.spec.js   | 54 +++++++++++++++++++
 2 files changed, 61 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/render-helpers/render-slot.js b/src/core/instance/render-helpers/render-slot.js
index 3eaff882522..1a194c579e3 100644
--- a/src/core/instance/render-helpers/render-slot.js
+++ b/src/core/instance/render-helpers/render-slot.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { extend, warn } from 'core/util/index'
+import { extend, warn, isObject } from 'core/util/index'
 
 /**
  * Runtime helper for rendering <slot>
@@ -15,6 +15,12 @@ export function renderSlot (
   if (scopedSlotFn) { // scoped slot
     props = props || {}
     if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        )
+      }
       props = extend(extend({}, bindObject), props)
     }
     return scopedSlotFn(props) || fallback
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index f4661fde403..8c17befde28 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -93,6 +93,60 @@ describe('Component scoped slot', () => {
     }).then(done)
   })
 
+  it('should warn when using v-bind with no object', () => {
+    new Vue({
+      template: `
+        <test ref="test">
+          <template scope="props">
+          </template>
+        </test>
+      `,
+      components: {
+        test: {
+          data () {
+            return {
+              text: 'some text'
+            }
+          },
+          template: `
+            <div>
+              <slot v-bind="text"></slot>
+            </div>
+          `
+        }
+      }
+    }).$mount()
+    expect('slot v-bind without argument expects an Object').toHaveBeenWarned()
+  })
+
+  it('should not warn when using v-bind with object', () => {
+    new Vue({
+      template: `
+        <test ref="test">
+          <template scope="props">
+          </template>
+        </test>
+      `,
+      components: {
+        test: {
+          data () {
+            return {
+              foo: {
+                text: 'some text'
+              }
+            }
+          },
+          template: `
+            <div>
+              <slot v-bind="foo"></slot>
+            </div>
+          `
+        }
+      }
+    }).$mount()
+    expect('slot v-bind without argument expects an Object').not.toHaveBeenWarned()
+  })
+
   it('named scoped slot', done => {
     const vm = new Vue({
       template: `

From 6dac3dbe441302cebb945b675f78f8e7247e2a97 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 6 Oct 2017 16:35:27 -0400
Subject: [PATCH 141/911] feat: rename catchError -> errorCaptured

---
 src/core/util/error.js                               |  6 +++---
 .../{catchError.spec.js => errorCaptured.spec.js}    | 12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)
 rename test/unit/features/options/{catchError.spec.js => errorCaptured.spec.js} (90%)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index 9b87f89e465..a454158da72 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -8,12 +8,12 @@ export function handleError (err: Error, vm: any, info: string) {
   if (vm) {
     let cur = vm
     while ((cur = cur.$parent)) {
-      if (cur.$options.catchError) {
+      if (cur.$options.errorCaptured) {
         try {
-          const propagate = cur.$options.catchError.call(cur, err, vm, info)
+          const propagate = cur.$options.errorCaptured.call(cur, err, vm, info)
           if (!propagate) return
         } catch (e) {
-          globalHandleError(e, cur, 'catchError')
+          globalHandleError(e, cur, 'errorCaptured hook')
         }
       }
     }
diff --git a/test/unit/features/options/catchError.spec.js b/test/unit/features/options/errorCaptured.spec.js
similarity index 90%
rename from test/unit/features/options/catchError.spec.js
rename to test/unit/features/options/errorCaptured.spec.js
index 27a12145fce..a0454ade0ef 100644
--- a/test/unit/features/options/catchError.spec.js
+++ b/test/unit/features/options/errorCaptured.spec.js
@@ -1,6 +1,6 @@
 import Vue from 'vue'
 
-describe('Options catchError', () => {
+describe('Options errorCaptured', () => {
   let globalSpy
 
   beforeEach(() => {
@@ -26,7 +26,7 @@ describe('Options catchError', () => {
     }
 
     new Vue({
-      catchError: spy,
+      errorCaptured: spy,
       render: h => h(Child)
     }).$mount()
 
@@ -49,7 +49,7 @@ describe('Options catchError', () => {
       data: {
         error: null
       },
-      catchError (e, vm, info) {
+      errorCaptured (e, vm, info) {
         expect(vm).toBe(child)
         this.error = e.toString() + ' in ' + info
       },
@@ -82,7 +82,7 @@ describe('Options catchError', () => {
     }
 
     new Vue({
-      catchError (err, vm, info) {
+      errorCaptured (err, vm, info) {
         spy(err, vm, info)
         return true
       },
@@ -108,7 +108,7 @@ describe('Options catchError', () => {
 
     let err2
     const vm = new Vue({
-      catchError () {
+      errorCaptured () {
         err2 = new Error('foo')
         throw err2
       },
@@ -116,6 +116,6 @@ describe('Options catchError', () => {
     }).$mount()
 
     expect(globalSpy).toHaveBeenCalledWith(err, child, 'created hook')
-    expect(globalSpy).toHaveBeenCalledWith(err2, vm, 'catchError')
+    expect(globalSpy).toHaveBeenCalledWith(err2, vm, 'errorCaptured hook')
   })
 })

From 68934997444c0047c49e419761dfad7fbc043a5d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 6 Oct 2017 16:54:35 -0400
Subject: [PATCH 142/911] feat: rename inject alias from "name" to "from"

---
 src/core/instance/inject.js               |  2 +-
 src/core/util/options.js                  |  6 +++---
 test/unit/features/options/inject.spec.js | 23 ++++++++++++++++++++---
 3 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index dd56e588855..8bed0cd31b5 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -49,7 +49,7 @@ export function resolveInject (inject: any, vm: Component): ?Object {
 
     for (let i = 0; i < keys.length; i++) {
       const key = keys[i]
-      const provideKey = inject[key].name
+      const provideKey = inject[key].from
       let source = vm
       while (source) {
         if (source._provided && provideKey in source._provided) {
diff --git a/src/core/util/options.js b/src/core/util/options.js
index 11a586961c4..8461a722f5c 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -273,14 +273,14 @@ function normalizeInject (options: Object) {
   const normalized = options.inject = {}
   if (Array.isArray(inject)) {
     for (let i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { name: inject[i] }
+      normalized[inject[i]] = { from: inject[i] }
     }
   } else if (isPlainObject(inject)) {
     for (const key in inject) {
       const val = inject[key]
       normalized[key] = isPlainObject(val)
-        ? extend({ name: key }, val)
-        : { name: val }
+        ? extend({ from: key }, val)
+        : { from: val }
     }
   }
 }
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index 739f5daffeb..b07d09b7a9b 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -384,12 +384,29 @@ describe('Options provide/inject', () => {
         injected = [this.foo, this.bar, this.baz]
       }
     })
-    expect(`Injection "foo" not found`).not.toHaveBeenWarned()
-    expect(`Injection "bar" not found`).not.toHaveBeenWarned()
-    expect(`Injection "baz" not found`).not.toHaveBeenWarned()
     expect(injected).toEqual([1, false, undefined])
   })
 
+  it('should support name alias and default together', () => {
+    const vm = new Vue({
+      provide: {
+        FOO: 2
+      }
+    })
+    new Vue({
+      parent: vm,
+      inject: {
+        foo: { from: 'FOO', default: 1 },
+        bar: { default: false },
+        baz: { default: undefined }
+      },
+      created () {
+        injected = [this.foo, this.bar, this.baz]
+      }
+    })
+    expect(injected).toEqual([2, false, undefined])
+  })
+
   it('should use provided value even if inject has default', () => {
     const vm = new Vue({
       provide: {

From 96472be6f62a98d3b5d6b784fe341a71ba3a68eb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 6 Oct 2017 17:41:54 -0400
Subject: [PATCH 143/911] types: add types for new features and adjust tests

---
 .circleci/config.yml                          |   8 +-
 flow/options.js                               |   5 +-
 package-lock.json                             |  38 +++
 package.json                                  |   2 +
 .../vue-server-renderer/package-lock.json     | 264 +-----------------
 packages/vue-server-renderer/package.json     |   8 +-
 packages/vue-server-renderer/types/index.d.ts |   6 +-
 types/options.d.ts                            |  11 +-
 types/test/options-test.ts                    |  29 +-
 .../types/test.ts => types/test/ssr-test.ts   |  23 +-
 types/test/tsconfig.json                      |   3 +-
 11 files changed, 119 insertions(+), 278 deletions(-)
 rename packages/vue-server-renderer/types/test.ts => types/test/ssr-test.ts (76%)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 265da7245ae..2426aadc6cd 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -15,13 +15,13 @@ jobs:
             - v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
             - v1-vue-{{ .Branch }}-
             - v1-vue-
-      - run:
-          name: Install Dependencies
-          command: npm install
+      - run: npm install
+      - run: cd packages/vue-server-renderer && npm install
       - save_cache:
           key: v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
           paths:
             - node_modules/
+            - packages/vue-server-renderer/node_modules
       - persist_to_workspace:
           root: ~/project
           paths:
@@ -33,7 +33,7 @@ jobs:
       - attach_workspace:
           at: ~/project
       - run: npm run lint
-      - run: node_modules/.bin/flow check
+      - run: npm run flow
       - run: npm run test:types
 
   test-cover:
diff --git a/flow/options.js b/flow/options.js
index f8891b392d7..aa87fceb836 100644
--- a/flow/options.js
+++ b/flow/options.js
@@ -12,6 +12,8 @@ declare type InternalComponentOptions = {
   staticRenderFns?: Array<Function>
 };
 
+type InjectKey = string | Symbol;
+
 declare type ComponentOptions = {
   // data
   data: Object | Function | void;
@@ -45,6 +47,7 @@ declare type ComponentOptions = {
   deactivated?: Function;
   beforeDestroy?: Function;
   destroyed?: Function;
+  errorCaptured?: () => boolean | void;
 
   // assets
   directives?: { [key: string]: Object };
@@ -54,7 +57,7 @@ declare type ComponentOptions = {
 
   // context
   provide?: { [key: string | Symbol]: any } | () => { [key: string | Symbol]: any };
-  inject?: { [key: string]: string | Symbol } | Array<string>;
+  inject?: { [key: string]: InjectKey | { from?: InjectKey, default?: any }} | Array<string>;
 
   // component v-model customization
   model?: {
diff --git a/package-lock.json b/package-lock.json
index 0757ed8bd85..e0d856c446e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,44 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@types/node": {
+      "version": "8.0.33",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.0.33.tgz",
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+      "dev": true
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+      "resolved": "https://registry.npmjs.org/@types/source-map/-/source-map-0.5.1.tgz",
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+      "dev": true
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+      "resolved": "https://registry.npmjs.org/@types/tapable/-/tapable-0.2.4.tgz",
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+      "dev": true
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+    "@types/uglify-js": {
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+      "resolved": "https://registry.npmjs.org/@types/uglify-js/-/uglify-js-2.6.29.tgz",
+      "integrity": "sha512-BdFLCZW0GTl31AbqXSak8ss/MqEZ3DN2MH9rkAyGoTuzK7ifGUlX+u0nfbWeTsa7IPcZhtn8BlpYBXSV+vqGhQ==",
+      "dev": true,
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+      "resolved": "https://registry.npmjs.org/@types/webpack/-/webpack-3.0.13.tgz",
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+      "dev": true,
+      "requires": {
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+        "@types/tapable": "0.2.4",
+        "@types/uglify-js": "2.6.29"
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     "JSONStream": {
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diff --git a/package.json b/package.json
index b9a9d005e26..9cd52f50efc 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,8 @@
   },
   "homepage": "https://github.com/vuejs/vue#readme",
   "devDependencies": {
+    "@types/node": "^8.0.33",
+    "@types/webpack": "^3.0.13",
     "babel-core": "^6.25.0",
     "babel-eslint": "^7.2.3",
     "babel-helper-vue-jsx-merge-props": "^2.0.2",
diff --git a/packages/vue-server-renderer/package-lock.json b/packages/vue-server-renderer/package-lock.json
index b95ea91ca36..1b25d2eaedd 100644
--- a/packages/vue-server-renderer/package-lock.json
+++ b/packages/vue-server-renderer/package-lock.json
@@ -4,44 +4,6 @@
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   "requires": true,
   "dependencies": {
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-      "version": "7.0.43",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-7.0.43.tgz",
-      "integrity": "sha512-7scYwwfHNppXvH/9JzakbVxk0o0QUILVk1Lv64GRaxwPuGpnF1QBiwdvhDpLcymb8BpomQL3KYoWKq3wUdDMhQ==",
-      "dev": true
-    },
-    "@types/source-map": {
-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/@types/source-map/-/source-map-0.5.1.tgz",
-      "integrity": "sha512-/GVAjL1Y8puvZab63n8tsuBiYwZt1bApMdx58/msQ9ID5T05ov+wm/ZV1DvYC/DKKEygpTJViqQvkh5Rhrl4CA==",
-      "dev": true
-    },
-    "@types/tapable": {
-      "version": "0.2.4",
-      "resolved": "https://registry.npmjs.org/@types/tapable/-/tapable-0.2.4.tgz",
-      "integrity": "sha512-pclMAvhPnXJcJu1ZZ8bQthuUcdDWzDuxDdbSf6l1U6s4fP6EBiZpPsOZYqFOrbqDV97sXGFSsb6AUpiLfv4xIA==",
-      "dev": true
-    },
-    "@types/uglify-js": {
-      "version": "2.6.29",
-      "resolved": "https://registry.npmjs.org/@types/uglify-js/-/uglify-js-2.6.29.tgz",
-      "integrity": "sha512-BdFLCZW0GTl31AbqXSak8ss/MqEZ3DN2MH9rkAyGoTuzK7ifGUlX+u0nfbWeTsa7IPcZhtn8BlpYBXSV+vqGhQ==",
-      "dev": true,
-      "requires": {
-        "@types/source-map": "0.5.1"
-      }
-    },
-    "@types/webpack": {
-      "version": "3.0.10",
-      "resolved": "https://registry.npmjs.org/@types/webpack/-/webpack-3.0.10.tgz",
-      "integrity": "sha512-Xjv1QuWFCVwjxnpcgcdvtR6G4w0tCUpV1Mi5+LPN8w89a/qu8NVbTm1zhD7ZWzvvjE5fMtYNchFHcbjV3u2jyg==",
-      "dev": true,
-      "requires": {
-        "@types/node": "7.0.43",
-        "@types/tapable": "0.2.4",
-        "@types/uglify-js": "2.6.29"
-      }
-    },
     "ansi-regex": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
@@ -150,12 +112,6 @@
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
     },
-    "typescript": {
-      "version": "2.5.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.5.2.tgz",
-      "integrity": "sha1-A4qV99m7tCCxvzW6MdTFwd0//jQ=",
-      "dev": true
-    },
     "vue": {
       "version": "file:../..",
       "dev": true,
@@ -180,10 +136,6 @@
             "negotiator": "0.6.1"
           }
         },
-        "acorn": {
-          "version": "3.3.0",
-          "bundled": true
-        },
         "acorn-dynamic-import": {
           "version": "2.0.2",
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@@ -197,20 +149,6 @@
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-        "acorn-jsx": {
-          "version": "3.0.1",
-          "bundled": true,
-          "requires": {
-            "acorn": "3.3.0"
-          }
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-        "acorn-object-spread": {
-          "version": "1.0.0",
-          "bundled": true,
-          "requires": {
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@@ -262,14 +200,6 @@
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-          "version": "2.1.1",
-          "bundled": true
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-        "ansi-styles": {
-          "version": "2.2.1",
-          "bundled": true
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@@ -423,7 +353,6 @@
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@@ -446,7 +375,6 @@
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-            "minimatch": "3.0.4",
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             "private": "0.1.7",
             "slash": "1.0.0",
@@ -947,10 +875,6 @@
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-          "bundled": true
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@@ -1057,14 +981,6 @@
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-        "brace-expansion": {
-          "version": "1.1.8",
-          "bundled": true,
-          "requires": {
-            "balanced-match": "1.0.0",
-            "concat-map": "0.0.1"
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@@ -1152,25 +1068,6 @@
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           }
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-        "buble": {
-          "version": "0.15.2",
-          "bundled": true,
-          "requires": {
-            "acorn": "3.3.0",
-            "acorn-jsx": "3.0.1",
-            "acorn-object-spread": "1.0.0",
-            "chalk": "1.1.3",
-            "magic-string": "0.14.0",
-            "minimist": "1.2.0",
-            "os-homedir": "1.0.2"
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-              "bundled": true
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@@ -1202,10 +1099,7 @@
         },
         "cachedir": {
           "version": "1.1.1",
-          "bundled": true,
-          "requires": {
-            "os-homedir": "1.0.2"
-          }
+          "bundled": true
         },
         "caller-path": {
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@@ -1254,17 +1148,6 @@
             "deep-eql": "0.1.3"
           }
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-        "chalk": {
-          "version": "1.1.3",
-          "bundled": true,
-          "requires": {
-            "ansi-styles": "2.2.1",
-            "escape-string-regexp": "1.0.5",
-            "has-ansi": "2.0.0",
-            "strip-ansi": "3.0.1",
-            "supports-color": "2.0.0"
-          }
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         "chokidar": {
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           "bundled": true,
@@ -1521,7 +1404,6 @@
           "bundled": true,
           "requires": {
             "cachedir": "1.1.1",
-            "chalk": "1.1.3",
             "cz-conventional-changelog": "1.2.0",
             "dedent": "0.6.0",
             "detect-indent": "4.0.0",
@@ -1556,7 +1438,6 @@
                 "fs.realpath": "1.0.0",
                 "inflight": "1.0.6",
                 "inherits": "2.0.3",
-                "minimatch": "3.0.4",
                 "once": "1.4.0",
                 "path-is-absolute": "1.0.1"
               }
@@ -1621,10 +1502,6 @@
             "readable-stream": "2.3.3"
           }
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-        "concat-map": {
-          "version": "0.0.1",
-          "bundled": true
-        },
         "concat-stream": {
           "version": "1.6.0",
           "bundled": true,
@@ -2383,10 +2260,6 @@
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           "bundled": true
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-        "escape-string-regexp": {
-          "version": "1.0.5",
-          "bundled": true
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@@ -2431,7 +2304,6 @@
           "bundled": true,
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             "doctrine": "2.0.0",
@@ -2472,8 +2344,6 @@
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-                "chalk": "1.1.3",
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                 "cli-width": "2.2.0",
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@@ -2482,7 +2352,6 @@
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                 "rx-lite": "3.1.2",
                 "string-width": "1.0.2",
-                "strip-ansi": "3.0.1",
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@@ -2539,8 +2408,7 @@
           "version": "3.5.0",
           "bundled": true,
           "requires": {
-            "acorn": "5.1.1",
-            "acorn-jsx": "3.0.1"
+            "acorn": "5.1.1"
           },
           "dependencies": {
             "acorn": {
@@ -2572,10 +2440,6 @@
           "version": "4.2.0",
           "bundled": true
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@@ -2662,10 +2526,7 @@
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         "expand-tilde": {
           "version": "1.2.2",
-          "bundled": true,
-          "requires": {
-            "os-homedir": "1.0.2"
-          }
+          "bundled": true
         },
         "extend": {
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@@ -2736,7 +2597,6 @@
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           "bundled": true,
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             "object-assign": "4.1.1"
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@@ -2849,10 +2709,7 @@
           "dependencies": {
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               "version": "0.16.0",
-              "bundled": true,
-              "requires": {
-                "vlq": "0.2.2"
-              }
+              "bundled": true
             }
           }
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@@ -3812,7 +3669,6 @@
             "fs.realpath": "1.0.0",
             "inflight": "1.0.6",
             "inherits": "2.0.3",
-            "minimatch": "3.0.4",
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@@ -3930,13 +3786,6 @@
             "har-schema": "1.0.5"
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-        "has-ansi": {
-          "version": "2.0.0",
-          "bundled": true,
-          "requires": {
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@@ -4016,7 +3865,6 @@
           "version": "2.0.0",
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@@ -4154,7 +4002,6 @@
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@@ -4165,7 +4012,6 @@
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@@ -4400,7 +4246,6 @@
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@@ -4563,7 +4408,6 @@
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-            "minimatch": "3.0.4",
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@@ -4611,7 +4455,6 @@
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@@ -4654,7 +4497,6 @@
               "bundled": true,
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@@ -5033,7 +4875,6 @@
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@@ -5109,13 +4950,6 @@
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-          "bundled": true,
-          "requires": {
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@@ -5233,13 +5067,6 @@
           "version": "1.0.1",
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-          "bundled": true,
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@@ -5263,7 +5090,6 @@
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@@ -5293,7 +5119,6 @@
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-                "minimatch": "3.0.4",
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@@ -5358,10 +5183,7 @@
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               "version": "3.0.3",
-              "bundled": true,
-              "requires": {
-                "brace-expansion": "1.1.8"
-              }
+              "bundled": true
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             "q": {
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@@ -5520,10 +5342,6 @@
           "version": "0.2.1",
           "bundled": true
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-        "os-homedir": {
-          "version": "1.0.2",
-          "bundled": true
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@@ -5963,7 +5781,6 @@
           "bundled": true,
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@@ -6210,14 +6027,6 @@
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-        "rollup-plugin-buble": {
-          "version": "0.15.0",
-          "bundled": true,
-          "requires": {
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-            "rollup-pluginutils": "1.5.2"
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         "rollup-plugin-commonjs": {
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@@ -6239,10 +6048,7 @@
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             "magic-string": {
               "version": "0.22.4",
-              "bundled": true,
-              "requires": {
-                "vlq": "0.2.2"
-              }
+              "bundled": true
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@@ -6264,8 +6070,7 @@
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           "bundled": true,
           "requires": {
-            "flow-remove-types-no-whitespace": "1.0.5",
-            "rollup-pluginutils": "1.5.2"
+            "flow-remove-types-no-whitespace": "1.0.5"
           }
         },
         "rollup-plugin-node-resolve": {
@@ -6278,32 +6083,6 @@
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-        "rollup-plugin-replace": {
-          "version": "1.1.1",
-          "bundled": true,
-          "requires": {
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-            "minimatch": "3.0.4",
-            "rollup-pluginutils": "1.5.2"
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-              "bundled": true,
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-          "bundled": true,
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-            "minimatch": "3.0.4"
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         "rollup-watch": {
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@@ -6697,8 +6476,7 @@
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           "requires": {
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-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
+            "is-fullwidth-code-point": "1.0.0"
           }
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         "string_decoder": {
@@ -6712,13 +6490,6 @@
           "version": "0.0.5",
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-          "version": "3.0.1",
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@@ -6737,17 +6508,12 @@
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           "bundled": true,
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             "slice-ansi": "0.0.4",
             "string-width": "2.1.1"
@@ -7019,10 +6785,7 @@
         },
         "user-home": {
           "version": "2.0.0",
-          "bundled": true,
-          "requires": {
-            "os-homedir": "1.0.2"
-          }
+          "bundled": true
         },
         "useragent": {
           "version": "2.2.1",
@@ -7090,10 +6853,6 @@
             }
           }
         },
-        "vlq": {
-          "version": "0.2.2",
-          "bundled": true
-        },
         "vm-browserify": {
           "version": "0.0.4",
           "bundled": true,
@@ -7156,7 +6915,6 @@
               "version": "2.0.6",
               "bundled": true,
               "requires": {
-                "chalk": "1.1.3",
                 "commander": "2.11.0",
                 "is-my-json-valid": "2.16.1",
                 "pinkie-promise": "2.0.1"
@@ -7314,7 +7072,6 @@
                   "bundled": true,
                   "requires": {
                     "string-width": "1.0.2",
-                    "strip-ansi": "3.0.1",
                     "wrap-ansi": "2.1.0"
                   }
                 }
@@ -7386,8 +7143,7 @@
           "version": "2.1.0",
           "bundled": true,
           "requires": {
-            "string-width": "1.0.2",
-            "strip-ansi": "3.0.1"
+            "string-width": "1.0.2"
           }
         },
         "wrappy": {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index bfac83ff077..39250cef341 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -18,9 +18,6 @@
   "bugs": {
     "url": "https://github.com/vuejs/vue/issues"
   },
-  "scripts": {
-    "test:types": "tsc -p types"
-  },
   "dependencies": {
     "chalk": "^1.1.3",
     "hash-sum": "^1.0.2",
@@ -32,10 +29,7 @@
     "source-map": "0.5.6"
   },
   "devDependencies": {
-    "@types/node": "^7.0.22",
-    "@types/webpack": "^3.0.6",
-    "typescript": "^2.4.2",
-    "vue": "file:../.."
+    "vue": "file:../../"
   },
   "homepage": "https://github.com/vuejs/vue/tree/dev/packages/vue-server-renderer#readme"
 }
diff --git a/packages/vue-server-renderer/types/index.d.ts b/packages/vue-server-renderer/types/index.d.ts
index d2c8394cba4..e6c8d62dde9 100644
--- a/packages/vue-server-renderer/types/index.d.ts
+++ b/packages/vue-server-renderer/types/index.d.ts
@@ -1,4 +1,4 @@
-import Vue = require('vue');
+import Vue, { VNode, VNodeDirective } from 'vue';
 import { Readable } from 'stream';
 
 export declare function createRenderer(options?: RendererOptions): Renderer;
@@ -10,6 +10,7 @@ type RenderCallback = (err: Error | null, html: string) => void;
 interface Renderer {
   renderToString(vm: Vue, callback: RenderCallback): void;
   renderToString(vm: Vue, context: object, callback: RenderCallback): void;
+  renderToString(vm: Vue): Promise<string>;
 
   renderToStream(vm: Vue, context?: object): Readable;
 }
@@ -25,9 +26,10 @@ interface RendererOptions {
   template?: string;
   inject?: boolean;
   shouldPreload?: (file: string, type: string) => boolean;
+  shouldPrefetch?: (file: string, type: string) => boolean;
   cache?: RenderCache;
   directives?: {
-    [key: string]: (vnode: Vue.VNode, dir: Vue.VNodeDirective) => void
+    [key: string]: (vnode: VNode, dir: VNodeDirective) => void
   };
 }
 
diff --git a/types/options.d.ts b/types/options.d.ts
index 7cba394e02e..c4d822f69ef 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -80,6 +80,7 @@ export interface ComponentOptions<
   updated?(): void;
   activated?(): void;
   deactivated?(): void;
+  errorCaptured?(): boolean | void;
 
   directives?: { [key: string]: DirectiveFunction | DirectiveOptions };
   components?: { [key: string]: Component<any, any, any, any> | AsyncComponent<any, any, any, any> };
@@ -87,7 +88,7 @@ export interface ComponentOptions<
   filters?: { [key: string]: Function };
 
   provide?: Object | (() => Object);
-  inject?: { [key: string]: string | symbol } | string[];
+  inject?: InjectOptions;
 
   model?: {
     prop?: string;
@@ -107,7 +108,7 @@ export interface ComponentOptions<
 export interface FunctionalComponentOptions<Props = DefaultProps, PropDefs = PropsDefinition<Props>> {
   name?: string;
   props?: PropDefs;
-  inject?: { [key: string]: string | symbol } | string[];
+  inject?: InjectOptions;
   functional: boolean;
   render(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode;
 }
@@ -169,3 +170,9 @@ export interface DirectiveOptions {
   componentUpdated?: DirectiveFunction;
   unbind?: DirectiveFunction;
 }
+
+export type InjectKey = string | symbol;
+
+export type InjectOptions = {
+  [key: string]: InjectKey | { from?: InjectKey, default?: any }
+} | string[];
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 6a94d95c79a..e7cd8bacdab 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -187,6 +187,9 @@ Vue.component('component', {
   updated() {},
   activated() {},
   deactivated() {},
+  errorCaptured() {
+    return true
+  },
 
   directives: {
     a: {
@@ -224,6 +227,25 @@ Vue.component('component', {
   delimiters: ["${", "}"]
 });
 
+Vue.component('provide-inject', {
+  provide: {
+    foo: 1
+  },
+  inject: {
+    injectFoo: 'foo',
+    injectBar: Symbol(),
+    injectBaz: { from: 'baz' },
+    injectQux: { default: 1 },
+    injectQuux: { from: 'quuz', default: () => ({ value: 1 })}
+  }
+})
+
+Vue.component('provide-function', {
+  provide: () => ({
+    foo: 1
+  })
+})
+
 Vue.component('component-with-scoped-slot', {
   render (h) {
     interface ScopedSlotProps {
@@ -272,8 +294,11 @@ Vue.component('functional-component', {
 Vue.component('functional-component-object-inject', {
   functional: true,
   inject: {
-    foo: 'bar',
-    baz: Symbol()
+    foo: 'foo',
+    bar: Symbol(),
+    baz: { from: 'baz' },
+    qux: { default: 1 },
+    quux: { from: 'quuz', default: () => ({ value: 1 })}
   },
   render(h) {
     return h('div')
diff --git a/packages/vue-server-renderer/types/test.ts b/types/test/ssr-test.ts
similarity index 76%
rename from packages/vue-server-renderer/types/test.ts
rename to types/test/ssr-test.ts
index 381b85cf18b..a9377a48506 100644
--- a/packages/vue-server-renderer/types/test.ts
+++ b/types/test/ssr-test.ts
@@ -1,9 +1,9 @@
-import Vue = require('vue');
-import VueSSRClientPlugin = require('../client-plugin');
-import VueSSRServerPlugin = require('../server-plugin');
+import Vue, { VNode, VNodeDirective } from '../index';
+import VueSSRClientPlugin = require('../../packages/vue-server-renderer/client-plugin');
+import VueSSRServerPlugin = require('../../packages/vue-server-renderer/server-plugin');
 import webpack = require('webpack');
 import { readFileSync } from 'fs';
-import { createRenderer, createBundleRenderer } from '../';
+import { createRenderer, createBundleRenderer } from '../../packages/vue-server-renderer';
 
 function createApp (context: any) {
   return new Vue({
@@ -28,11 +28,24 @@ const context = {
   `
 };
 
+renderer.renderToString(app, (err, html) => {
+  if (err) throw err;
+  const res: string = html;
+});
+
 renderer.renderToString(app, context, (err, html) => {
   if (err) throw err;
   const res: string = html;
 });
 
+renderer.renderToString(app)
+  .then(html => {
+    const res: string = html;
+  })
+  .catch(err => {
+    throw err;
+  });
+
 renderer.renderToStream(app, context).on('data', chunk => {
   const html = chunk.toString();
 });
@@ -71,7 +84,7 @@ const bundleRenderer = createBundleRenderer('/path/to/vue-ssr-server-bundle.json
   },
 
   directives: {
-    example (vnode: Vue.VNode, directiveMeta: Vue.VNodeDirective) {
+    example (vnode: VNode, directiveMeta: VNodeDirective) {
       // transform vnode based on directive binding metadata
     }
   }
diff --git a/types/test/tsconfig.json b/types/test/tsconfig.json
index be0fef22ace..784de825267 100644
--- a/types/test/tsconfig.json
+++ b/types/test/tsconfig.json
@@ -18,7 +18,8 @@
     "options-test.ts",
     "plugin-test.ts",
     "vue-test.ts",
-    "augmentation-test.ts"
+    "augmentation-test.ts",
+    "ssr-test.ts"
   ],
   "compileOnSave": false
 }

From 35e55ecd42d0d5dcb476aca79c91186b8f3dc226 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 7 Oct 2017 00:18:23 -0400
Subject: [PATCH 144/911] refactor: remove unnecessary argument

---
 src/platforms/web/runtime/modules/dom-props.js | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index 52235850d7c..c6ba3d0e924 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -41,7 +41,7 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       elm._value = cur
       // avoid resetting cursor position when value is the same
       const strCur = isUndef(cur) ? '' : String(cur)
-      if (shouldUpdateValue(elm, vnode, strCur)) {
+      if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur
       }
     } else {
@@ -53,13 +53,9 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
 // check platforms/web/util/attrs.js acceptValue
 type acceptValueElm = HTMLInputElement | HTMLSelectElement | HTMLOptionElement;
 
-function shouldUpdateValue (
-  elm: acceptValueElm,
-  vnode: VNodeWithData,
-  checkVal: string
-): boolean {
+function shouldUpdateValue (elm: acceptValueElm, checkVal: string): boolean {
   return (!elm.composing && (
-    vnode.tag === 'option' ||
+    elm.tagName === 'OPTION' ||
     isDirty(elm, checkVal) ||
     isInputChanged(elm, checkVal)
   ))

From 2876ed870c5368a1767fbeddf06e94b55ebd6234 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 7 Oct 2017 02:43:10 -0400
Subject: [PATCH 145/911] fix: resolve async component default for native
 dynamic import

fix #6751
---
 src/core/vdom/helpers/resolve-async-component.js | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 697f227c284..99ce5ce47ed 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -6,13 +6,17 @@ import {
   isDef,
   isUndef,
   isTrue,
-  isObject
+  isObject,
+  hasSymbol
 } from 'core/util/index'
 
 import { createEmptyVNode } from 'core/vdom/vnode'
 
-function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+function ensureCtor (comp: any, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default
   }
   return isObject(comp)

From f3fe012d5499f607656b152ce5fcb506c641f9f4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 7 Oct 2017 23:18:11 -0400
Subject: [PATCH 146/911] feat(v-model): support dynamic input type binding

---
 flow/compiler.js                              |  11 +-
 src/compiler/helpers.js                       |  13 +-
 src/compiler/parser/index.js                  |  65 ++++++----
 .../web/compiler/directives/model.js          |   7 -
 src/platforms/web/compiler/modules/index.js   |   4 +-
 src/platforms/web/compiler/modules/model.js   |  77 +++++++++++
 .../features/directives/model-dynamic.spec.js | 120 +++++++++++++++++-
 7 files changed, 254 insertions(+), 43 deletions(-)
 create mode 100644 src/platforms/web/compiler/modules/model.js

diff --git a/flow/compiler.js b/flow/compiler.js
index f364351b196..89473789b00 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -36,8 +36,10 @@ declare type CompiledResult = {
 };
 
 declare type ModuleOptions = {
-  preTransformNode: (el: ASTElement) => void;
-  transformNode: (el: ASTElement) => void; // transform an element's AST node
+  // returning an ASTElement from pre/transforms replaces the element
+  preTransformNode: (el: ASTElement) => ?ASTElement;
+  transformNode: (el: ASTElement) => ?ASTElement;
+  // cannot return replacement in postTransform because tree is already finalized
   postTransformNode: (el: ASTElement) => void;
   genData: (el: ASTElement) => string; // generate extra data string for an element
   transformCode?: (el: ASTElement, code: string) => string; // further transform generated code for an element
@@ -45,7 +47,8 @@ declare type ModuleOptions = {
 };
 
 declare type ASTModifiers = { [key: string]: boolean };
-declare type ASTIfConditions = Array<{ exp: ?string; block: ASTElement }>;
+declare type ASTIfCondition = { exp: ?string; block: ASTElement };
+declare type ASTIfConditions = Array<ASTIfCondition>;
 
 declare type ASTElementHandler = {
   value: string;
@@ -74,6 +77,8 @@ declare type ASTElement = {
   parent: ASTElement | void;
   children: Array<ASTNode>;
 
+  processed?: true;
+
   static?: boolean;
   staticRoot?: boolean;
   staticInFor?: boolean;
diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 49d6d6ae39a..5c844bd42e0 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -104,7 +104,15 @@ export function getBindingAttr (
   }
 }
 
-export function getAndRemoveAttr (el: ASTElement, name: string): ?string {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+export function getAndRemoveAttr (
+  el: ASTElement,
+  name: string,
+  removeFromMap?: boolean
+): ?string {
   let val
   if ((val = el.attrsMap[name]) != null) {
     const list = el.attrsList
@@ -115,5 +123,8 @@ export function getAndRemoveAttr (el: ASTElement, name: string): ?string {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name]
+  }
   return val
 }
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 466d7f5216c..5aeed3e222e 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -40,6 +40,22 @@ let platformIsPreTag
 let platformMustUseProp
 let platformGetTagNamespace
 
+type Attr = { name: string; value: string }
+export function createASTElement (
+  tag: string,
+  attrs: Array<Attr>,
+  parent: ASTElement | void
+): ASTElement {
+  return {
+    type: 1,
+    tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent,
+    children: []
+  }
+}
+
 /**
  * Convert HTML string to AST.
  */
@@ -102,14 +118,7 @@ export function parse (
         attrs = guardIESVGBug(attrs)
       }
 
-      const element: ASTElement = {
-        type: 1,
-        tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      }
+      let element: ASTElement = createASTElement(tag, attrs, currentParent)
       if (ns) {
         element.ns = ns
       }
@@ -125,7 +134,7 @@ export function parse (
 
       // apply pre-transforms
       for (let i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options)
+        element = preTransforms[i](element, options) || element
       }
 
       if (!inVPre) {
@@ -139,23 +148,13 @@ export function parse (
       }
       if (inVPre) {
         processRawAttrs(element)
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element)
         processIf(element)
         processOnce(element)
-        processKey(element)
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length
-
-        processRef(element)
-        processSlot(element)
-        processComponent(element)
-        for (let i = 0; i < transforms.length; i++) {
-          transforms[i](element, options)
-        }
-        processAttrs(element)
+        // element-scope stuff
+        processElement(element, options)
       }
 
       function checkRootConstraints (el) {
@@ -309,6 +308,22 @@ function processRawAttrs (el) {
   }
 }
 
+export function processElement (element: ASTElement, options: CompilerOptions) {
+  processKey(element)
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length
+
+  processRef(element)
+  processSlot(element)
+  processComponent(element)
+  for (let i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element
+  }
+  processAttrs(element)
+}
+
 function processKey (el) {
   const exp = getBindingAttr(el, 'key')
   if (exp) {
@@ -327,7 +342,7 @@ function processRef (el) {
   }
 }
 
-function processFor (el) {
+export function processFor (el: ASTElement) {
   let exp
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
     const inMatch = exp.match(forAliasRE)
@@ -403,7 +418,7 @@ function findPrevElement (children: Array<any>): ASTElement | void {
   }
 }
 
-function addIfCondition (el, condition) {
+export function addIfCondition (el: ASTElement, condition: ASTIfCondition) {
   if (!el.ifConditions) {
     el.ifConditions = []
   }
diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 98dd5a5213e..4e97350fe86 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -22,13 +22,6 @@ export default function model (
   const type = el.attrsMap.type
 
   if (process.env.NODE_ENV !== 'production') {
-    const dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type']
-    if (tag === 'input' && dynamicType) {
-      warn(
-        `<input :type="${dynamicType}" v-model="${value}">:\n` +
-        `v-model does not support dynamic input types. Use v-if branches instead.`
-      )
-    }
     // inputs with type="file" are read only and setting the input's
     // value will throw an error.
     if (tag === 'input' && type === 'file') {
diff --git a/src/platforms/web/compiler/modules/index.js b/src/platforms/web/compiler/modules/index.js
index d85ef0be956..29114a530c2 100644
--- a/src/platforms/web/compiler/modules/index.js
+++ b/src/platforms/web/compiler/modules/index.js
@@ -1,7 +1,9 @@
 import klass from './class'
 import style from './style'
+import model from './model'
 
 export default [
   klass,
-  style
+  style,
+  model
 ]
diff --git a/src/platforms/web/compiler/modules/model.js b/src/platforms/web/compiler/modules/model.js
new file mode 100644
index 00000000000..8947f8fbec6
--- /dev/null
+++ b/src/platforms/web/compiler/modules/model.js
@@ -0,0 +1,77 @@
+/* @flow */
+
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+import {
+  getBindingAttr,
+  getAndRemoveAttr
+} from 'compiler/helpers'
+
+import {
+  processFor,
+  processElement,
+  addIfCondition,
+  createASTElement
+} from 'compiler/parser/index'
+
+function preTransformNode (el: ASTElement, options: CompilerOptions) {
+  if (el.tag === 'input') {
+    const map = el.attrsMap
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      const typeBinding: any = getBindingAttr(el, 'type')
+      const ifCondition = getAndRemoveAttr(el, 'v-if', true)
+      // 1. checkbox
+      const branch0 = cloneASTElement(el)
+      // process for on the main node
+      processFor(branch0)
+      addRawAttr(branch0, 'type', 'checkbox')
+      processElement(branch0, options)
+      branch0.processed = true // prevent it from double-processed
+      branch0.if = `type==='checkbox'` + (ifCondition ? `&&(${ifCondition})` : ``)
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      })
+      // 2. add radio else-if condition
+      const branch1 = cloneASTElement(el)
+      getAndRemoveAttr(branch1, 'v-for', true)
+      addRawAttr(branch1, 'type', 'radio')
+      processElement(branch1, options)
+      addIfCondition(branch0, {
+        exp: `type==='radio'` + (ifCondition ? `&&(${ifCondition})` : ``),
+        block: branch1
+      })
+      // 3. other
+      const branch2 = cloneASTElement(el)
+      getAndRemoveAttr(branch2, 'v-for', true)
+      addRawAttr(branch2, ':type', typeBinding)
+      processElement(branch2, options)
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      })
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value
+  el.attrsList.push({ name, value })
+}
+
+export default {
+  preTransformNode
+}
diff --git a/test/unit/features/directives/model-dynamic.spec.js b/test/unit/features/directives/model-dynamic.spec.js
index 87a4cb5cb55..16d990a5d01 100644
--- a/test/unit/features/directives/model-dynamic.spec.js
+++ b/test/unit/features/directives/model-dynamic.spec.js
@@ -1,14 +1,122 @@
 import Vue from 'vue'
 
 describe('Directive v-model dynamic input type', () => {
-  it('should warn', function () {
-    new Vue({
+  it('should work', done => {
+    const vm = new Vue({
       data: {
-        type: 'text',
-        text: 'hi'
+        type: null,
+        test: 'b'
       },
-      template: `<input :type="type" v-model="text">`
+      template: `<input :type="type" v-model="test">`
     }).$mount()
-    expect(`v-model does not support dynamic input types`).toHaveBeenWarned()
+    document.body.appendChild(vm.$el)
+
+    // test text
+    assertInputWorks(vm).then(done)
+  })
+
+  it('with v-if', done => {
+    const vm = new Vue({
+      data: {
+        ok: true,
+        type: null,
+        test: 'b'
+      },
+      template: `<input v-if="ok" :type="type" v-model="test"><div v-else>haha</div>`
+    }).$mount()
+    document.body.appendChild(vm.$el)
+
+    const chain = assertInputWorks(vm).then(() => {
+      vm.ok = false
+    }).then(() => {
+      expect(vm.$el.textContent).toBe('haha')
+    }).then(() => {
+      // reset
+      vm.ok = true
+      vm.type = null
+      vm.test = 'b'
+    })
+
+    assertInputWorks(vm, chain).then(done)
+  })
+
+  it('with v-for', done => {
+    const vm = new Vue({
+      data: {
+        data: {
+          text: 'foo',
+          checkbox: true
+        },
+        types: ['text', 'checkbox']
+      },
+      template: `<div>
+        <input v-for="type in types" :type="type" v-model="data[type]">
+      </div>`
+    }).$mount()
+    document.body.appendChild(vm.$el)
+
+    let el1 = vm.$el.children[0]
+    expect(el1.type).toBe('text')
+    expect(el1.value).toBe('foo')
+    el1.value = 'bar'
+    triggerEvent(el1, 'input')
+    expect(vm.data.text).toBe('bar')
+
+    let el2 = vm.$el.children[1]
+    expect(el2.type).toBe('checkbox')
+    expect(el2.checked).toBe(true)
+    el2.click()
+    expect(vm.data.checkbox).toBe(false)
+
+    // now in reverse!
+    vm.types.reverse()
+    waitForUpdate(() => {
+      el1 = vm.$el.children[0]
+      expect(el1.type).toBe('checkbox')
+      expect(el1.checked).toBe(false)
+      el1.click()
+      expect(vm.data.checkbox).toBe(true)
+
+      el2 = vm.$el.children[1]
+      expect(el2.type).toBe('text')
+      expect(el2.value).toBe('bar')
+      el2.value = 'foo'
+      triggerEvent(el2, 'input')
+      expect(vm.data.text).toBe('foo')
+    }).then(done)
   })
 })
+
+function assertInputWorks (vm, chain) {
+  if (!chain) chain = waitForUpdate()
+  chain.then(() => {
+    expect(vm.$el.value).toBe('b')
+    vm.test = 'a'
+  }).then(() => {
+    expect(vm.$el.value).toBe('a')
+    vm.$el.value = 'c'
+    triggerEvent(vm.$el, 'input')
+    expect(vm.test).toBe('c')
+  }).then(() => {
+    // change it to password
+    vm.type = 'password'
+    vm.test = 'b'
+  }).then(() => {
+    expect(vm.$el.type).toBe('password')
+    expect(vm.$el.value).toBe('b')
+    vm.$el.value = 'c'
+    triggerEvent(vm.$el, 'input')
+    expect(vm.test).toBe('c')
+  }).then(() => {
+    // change it to checkbox...
+    vm.type = 'checkbox'
+  }).then(() => {
+    expect(vm.$el.type).toBe('checkbox')
+    expect(vm.$el.checked).toBe(true)
+  }).then(() => {
+    vm.$el.click()
+    expect(vm.$el.checked).toBe(false)
+    expect(vm.test).toBe(false)
+  })
+  return chain
+}

From 96b97448118de0939bf5f77c9b74cf1613a5a107 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 7 Oct 2017 23:23:19 -0400
Subject: [PATCH 147/911] refactor: tweak

---
 src/platforms/web/compiler/modules/model.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/compiler/modules/model.js b/src/platforms/web/compiler/modules/model.js
index 8947f8fbec6..4b14490cef6 100644
--- a/src/platforms/web/compiler/modules/model.js
+++ b/src/platforms/web/compiler/modules/model.js
@@ -28,6 +28,7 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
     if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
       const typeBinding: any = getBindingAttr(el, 'type')
       const ifCondition = getAndRemoveAttr(el, 'v-if', true)
+      const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``
       // 1. checkbox
       const branch0 = cloneASTElement(el)
       // process for on the main node
@@ -35,7 +36,7 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
       addRawAttr(branch0, 'type', 'checkbox')
       processElement(branch0, options)
       branch0.processed = true // prevent it from double-processed
-      branch0.if = `type==='checkbox'` + (ifCondition ? `&&(${ifCondition})` : ``)
+      branch0.if = `type==='checkbox'` + ifConditionExtra
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -46,7 +47,7 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
       addRawAttr(branch1, 'type', 'radio')
       processElement(branch1, options)
       addIfCondition(branch0, {
-        exp: `type==='radio'` + (ifCondition ? `&&(${ifCondition})` : ``),
+        exp: `type==='radio'` + ifConditionExtra,
         block: branch1
       })
       // 3. other

From 37533fd71e4fe002c909d6b167873cad5097f6b9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 9 Oct 2017 09:51:54 -0400
Subject: [PATCH 148/911] refactor: improve errorCaptured propagation behavior

---
 src/core/util/error.js                        |  15 ++-
 src/shared/constants.js                       |   3 +-
 .../features/options/errorCaptured.spec.js    | 103 +++++++++++++++++-
 3 files changed, 108 insertions(+), 13 deletions(-)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index a454158da72..abf5b6a5aa1 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -8,12 +8,15 @@ export function handleError (err: Error, vm: any, info: string) {
   if (vm) {
     let cur = vm
     while ((cur = cur.$parent)) {
-      if (cur.$options.errorCaptured) {
-        try {
-          const propagate = cur.$options.errorCaptured.call(cur, err, vm, info)
-          if (!propagate) return
-        } catch (e) {
-          globalHandleError(e, cur, 'errorCaptured hook')
+      const hooks = cur.$options.errorCaptured
+      if (hooks) {
+        for (let i = 0; i < hooks.length; i++) {
+          try {
+            const capture = hooks[i].call(cur, err, vm, info) === false
+            if (capture) return
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook')
+          }
         }
       }
     }
diff --git a/src/shared/constants.js b/src/shared/constants.js
index 2a4a7159085..84d019fb4ca 100644
--- a/src/shared/constants.js
+++ b/src/shared/constants.js
@@ -16,5 +16,6 @@ export const LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ]
diff --git a/test/unit/features/options/errorCaptured.spec.js b/test/unit/features/options/errorCaptured.spec.js
index a0454ade0ef..d16c057da6f 100644
--- a/test/unit/features/options/errorCaptured.spec.js
+++ b/test/unit/features/options/errorCaptured.spec.js
@@ -31,8 +31,8 @@ describe('Options errorCaptured', () => {
     }).$mount()
 
     expect(spy).toHaveBeenCalledWith(err, child, 'created hook')
-    // should not propagate by default
-    expect(globalSpy).not.toHaveBeenCalled()
+    // should propagate by default
+    expect(globalSpy).toHaveBeenCalledWith(err, child, 'created hook')
   })
 
   it('should be able to render the error in itself', done => {
@@ -67,7 +67,7 @@ describe('Options errorCaptured', () => {
     }).then(done)
   })
 
-  it('should propagate to global handler when returning true', () => {
+  it('should not propagate to global handler when returning true', () => {
     const spy = jasmine.createSpy()
 
     let child
@@ -84,14 +84,14 @@ describe('Options errorCaptured', () => {
     new Vue({
       errorCaptured (err, vm, info) {
         spy(err, vm, info)
-        return true
+        return false
       },
       render: h => h(Child, {})
     }).$mount()
 
     expect(spy).toHaveBeenCalledWith(err, child, 'created hook')
-    // should propagate
-    expect(globalSpy).toHaveBeenCalledWith(err, child, 'created hook')
+    // should not propagate
+    expect(globalSpy).not.toHaveBeenCalled()
   })
 
   it('should propagate to global handler if itself throws error', () => {
@@ -118,4 +118,95 @@ describe('Options errorCaptured', () => {
     expect(globalSpy).toHaveBeenCalledWith(err, child, 'created hook')
     expect(globalSpy).toHaveBeenCalledWith(err2, vm, 'errorCaptured hook')
   })
+
+  it('should work across multiple parents, mixins and extends', () => {
+    const calls = []
+
+    const Child = {
+      created () {
+        throw new Error('child')
+      },
+      render () {}
+    }
+
+    const ErrorBoundaryBase = {
+      errorCaptured () {
+        calls.push(1)
+      }
+    }
+
+    const mixin = {
+      errorCaptured () {
+        calls.push(2)
+      }
+    }
+
+    const ErrorBoundaryExtended = {
+      extends: ErrorBoundaryBase,
+      mixins: [mixin],
+      errorCaptured () {
+        calls.push(3)
+      },
+      render: h => h(Child)
+    }
+
+    Vue.config.errorHandler = () => {
+      calls.push(5)
+    }
+
+    new Vue({
+      errorCaptured () {
+        calls.push(4)
+      },
+      render: h => h(ErrorBoundaryExtended)
+    }).$mount()
+
+    expect(calls).toEqual([1, 2, 3, 4, 5])
+  })
+
+  it('should work across multiple parents, mixins and extends with return false', () => {
+    const calls = []
+
+    const Child = {
+      created () {
+        throw new Error('child')
+      },
+      render () {}
+    }
+
+    const ErrorBoundaryBase = {
+      errorCaptured () {
+        calls.push(1)
+      }
+    }
+
+    const mixin = {
+      errorCaptured () {
+        calls.push(2)
+      }
+    }
+
+    const ErrorBoundaryExtended = {
+      extends: ErrorBoundaryBase,
+      mixins: [mixin],
+      errorCaptured () {
+        calls.push(3)
+        return false
+      },
+      render: h => h(Child)
+    }
+
+    Vue.config.errorHandler = () => {
+      calls.push(5)
+    }
+
+    new Vue({
+      errorCaptured () {
+        calls.push(4)
+      },
+      render: h => h(ErrorBoundaryExtended)
+    }).$mount()
+
+    expect(calls).toEqual([1, 2, 3])
+  })
 })

From 405d8e9f4c3201db2ae0e397d9191d9b94edc219 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 9 Oct 2017 11:48:19 -0400
Subject: [PATCH 149/911] fix: prevent memory leak due to circular reference in
 vnodes

fix #6759
---
 src/core/instance/lifecycle.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index fd01d510865..db7bf286f11 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -133,6 +133,10 @@ export function lifecycleMixin (Vue: Class<Component>) {
     if (vm.$el) {
       vm.$el.__vue__ = null
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null
+    }
   }
 }
 

From 62405aa9035d5f547c0440263f16f21c1325f100 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 9 Oct 2017 16:30:07 -0400
Subject: [PATCH 150/911] revert: fix(v-model): fix input listener with
 modifier blocking v-model update

This reverts commit 6f312d636c3d6049dc9e60007f88ea871b8e8173 because the change
is no longer needed after switching nextTick to use MessageChannel.
---
 src/core/vdom/helpers/update-listeners.js     | 24 ++-----------------
 .../features/directives/model-text.spec.js    |  9 ++-----
 2 files changed, 4 insertions(+), 29 deletions(-)

diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index be44c6a0a22..d587eecf38a 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -5,11 +5,9 @@ import { cached, isUndef } from 'shared/util'
 
 const normalizeEvent = cached((name: string): {
   name: string,
-  plain: boolean,
   once: boolean,
   capture: boolean,
-  passive: boolean,
-  handler?: Function
+  passive: boolean
 } => {
   const passive = name.charAt(0) === '&'
   name = passive ? name.slice(1) : name
@@ -17,10 +15,8 @@ const normalizeEvent = cached((name: string): {
   name = once ? name.slice(1) : name
   const capture = name.charAt(0) === '!'
   name = capture ? name.slice(1) : name
-  const plain = !(passive || once || capture)
   return {
     name,
-    plain,
     once,
     capture,
     passive
@@ -44,11 +40,6 @@ export function createFnInvoker (fns: Function | Array<Function>): Function {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 export function updateListeners (
   on: Object,
   oldOn: Object,
@@ -57,13 +48,10 @@ export function updateListeners (
   vm: Component
 ) {
   let name, cur, old, event
-  const toAdd = []
-  let hasModifier = false
   for (name in on) {
     cur = on[name]
     old = oldOn[name]
     event = normalizeEvent(name)
-    if (!event.plain) hasModifier = true
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         `Invalid handler for event "${event.name}": got ` + String(cur),
@@ -73,20 +61,12 @@ export function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur)
       }
-      event.handler = cur
-      toAdd.push(event)
+      add(event.name, cur, event.once, event.capture, event.passive)
     } else if (cur !== old) {
       old.fns = cur
       on[name] = old
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) toAdd.sort(prioritizePlainEvents)
-    for (let i = 0; i < toAdd.length; i++) {
-      const event = toAdd[i]
-      add(event.name, event.handler, event.once, event.capture, event.passive)
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name)
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 264bbe91fab..7e291356c2f 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -315,13 +315,8 @@ describe('Directive v-model text', () => {
     })
 
     // #6552
-    // Root cause: input listeners with modifiers are added as a separate
-    // DOM listener. If a change is triggered inside this listener, an update
-    // will happen before the second listener is fired! (obviously microtasks
-    // can be processed in between DOM events on the same element)
-    // This causes the domProps module to receive state that has not been
-    // updated by v-model yet (because v-model's listener has not fired yet)
-    // Solution: make sure to always fire v-model's listener first
+    // This was original introduced due to the microtask between DOM events issue
+    // but fixed after switching to MessageChannel.
     it('should not block input when another input listener with modifier is used', done => {
       const vm = new Vue({
         data: {

From 596257cf6f00a42ef7a4e425e20328b7894d8400 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 9 Oct 2017 23:11:30 -0400
Subject: [PATCH 151/911] build: add weex factory dev script

---
 package.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 9cd52f50efc..7d9033a3e35 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,8 @@
     "dev:test": "karma start test/unit/karma.dev.config.js",
     "dev:ssr": "rollup -w -c build/config.js --environment TARGET:web-server-renderer",
     "dev:compiler": "rollup -w -c build/config.js --environment TARGET:web-compiler ",
-    "dev:weex": "rollup -w -c build/config.js --environment TARGET:weex-framework ",
+    "dev:weex": "rollup -w -c build/config.js --environment TARGET:weex-framework",
+    "dev:weex:factory": "rollup -w -c build/config.js --environment TARGET:weex-factory",
     "dev:weex:compiler": "rollup -w -c build/config.js --environment TARGET:weex-compiler ",
     "build": "node build/build.js",
     "build:ssr": "npm run build -- web-runtime-cjs,web-server-renderer",

From 3a5432a9e3f470ebafcef905281b830537897037 Mon Sep 17 00:00:00 2001
From: "wenlu.wang" <805037171@163.com>
Date: Tue, 10 Oct 2017 08:39:30 -0500
Subject: [PATCH 152/911] feat(core): call data method with this value (#6760)

#6739
---
 src/core/instance/state.js              |  2 +-
 test/unit/features/options/data.spec.js | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index f6770325506..017e1694f8b 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -161,7 +161,7 @@ function initData (vm: Component) {
 
 function getData (data: Function, vm: Component): any {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, `data()`)
     return {}
diff --git a/test/unit/features/options/data.spec.js b/test/unit/features/options/data.spec.js
index 7838ed39af2..29a48c38b44 100644
--- a/test/unit/features/options/data.spec.js
+++ b/test/unit/features/options/data.spec.js
@@ -106,4 +106,21 @@ describe('Options data', () => {
     })
     expect(vm.a).toBe(1)
   })
+
+  it('should called with this', () => {
+    const vm = new Vue({
+      template: '<div><child></child></div>',
+      provide: { foo: 1 },
+      components: {
+        child: {
+          template: '<span>{{bar}}</span>',
+          inject: ['foo'],
+          data ({ foo }) {
+            return { bar: 'foo:' + foo }
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe('<span>foo:1</span>')
+  })
 })

From 70a28b37bc2fc9fe8494d70a13e4f8848aed4d00 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 10 Oct 2017 10:43:06 -0400
Subject: [PATCH 153/911] chore: formatting

---
 src/compiler/parser/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 5aeed3e222e..ceedce70aef 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -40,7 +40,8 @@ let platformIsPreTag
 let platformMustUseProp
 let platformGetTagNamespace
 
-type Attr = { name: string; value: string }
+type Attr = { name: string; value: string };
+
 export function createASTElement (
   tag: string,
   attrs: Array<Attr>,

From dff85b230abda63839ed6b80d56ccfc6068b9ae0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 10 Oct 2017 10:47:06 -0400
Subject: [PATCH 154/911] fix(ssr): handle inline template compilation error

fix #6766
---
 src/compiler/to-function.js |  8 +++++---
 src/core/util/debug.js      |  5 +++--
 src/server/render.js        | 25 +++++++++++++++----------
 test/ssr/ssr-string.spec.js | 11 ++++++++++-
 4 files changed, 33 insertions(+), 16 deletions(-)

diff --git a/src/compiler/to-function.js b/src/compiler/to-function.js
index 6137422cf51..d9f20056093 100644
--- a/src/compiler/to-function.js
+++ b/src/compiler/to-function.js
@@ -1,7 +1,7 @@
 /* @flow */
 
-import { noop } from 'shared/util'
-import { warn, tip } from 'core/util/debug'
+import { noop, extend } from 'shared/util'
+import { warn as baseWarn, tip } from 'core/util/debug'
 
 type CompiledFunctionResult = {
   render: Function;
@@ -27,7 +27,9 @@ export function createCompileToFunctionFn (compile: Function): Function {
     options?: CompilerOptions,
     vm?: Component
   ): CompiledFunctionResult {
-    options = options || {}
+    options = extend({}, options)
+    const warn = options.warn || baseWarn
+    delete options.warn
 
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
diff --git a/src/core/util/debug.js b/src/core/util/debug.js
index 7799024240d..4508ac2d36a 100644
--- a/src/core/util/debug.js
+++ b/src/core/util/debug.js
@@ -5,7 +5,8 @@ import { noop } from 'shared/util'
 
 export let warn = noop
 export let tip = noop
-export let formatComponentName: Function = (null: any) // work around flow check
+export let generateComponentTrace = (noop: any) // work around flow check
+export let formatComponentName = (noop: any)
 
 if (process.env.NODE_ENV !== 'production') {
   const hasConsole = typeof console !== 'undefined'
@@ -66,7 +67,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   }
 
-  const generateComponentTrace = vm => {
+  generateComponentTrace = vm => {
     if (vm._isVue && vm.$parent) {
       const tree = []
       let currentRecursiveSequence = 0
diff --git a/src/server/render.js b/src/server/render.js
index 52d0191c9d1..8be73cf3f6d 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -1,18 +1,14 @@
 /* @flow */
 
-import {
-  isDef,
-  isUndef,
-  isTrue,
-  extend
-} from 'shared/util'
-
 import { escape } from 'web/server/util'
 import { SSR_ATTR } from 'shared/constants'
 import { RenderContext } from './render-context'
+import { generateComponentTrace } from 'core/util/debug'
 import { ssrCompileToFunctions } from 'web/server/compiler'
 import { installSSRHelpers } from './optimizing-compiler/runtime-helpers'
 
+import { isDef, isUndef, isTrue } from 'shared/util'
+
 import {
   createComponent,
   createComponentInstanceForVnode
@@ -26,13 +22,22 @@ const warnOnce = msg => {
   }
 }
 
+const onCompilationError = (err, vm) => {
+  const trace = vm ? generateComponentTrace(vm) : ''
+  throw new Error(`\n\u001b[31m${err}${trace}\u001b[39m\n`)
+}
+
 const normalizeRender = vm => {
   const { render, template, _scopeId } = vm.$options
   if (isUndef(render)) {
     if (template) {
-      extend(vm.$options, ssrCompileToFunctions(template, {
-        scopeId: _scopeId
-      }))
+      const compiled = ssrCompileToFunctions(template, {
+        scopeId: _scopeId,
+        warn: onCompilationError
+      }, vm)
+
+      vm.$options.render = compiled.render
+      vm.$options.staticRenderFns = compiled.staticRenderFns
     } else {
       throw new Error(
         `render function or template not defined in component: ${
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 547ba19e39c..7e07ad112fe 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -968,7 +968,7 @@ describe('SSR: renderToString', () => {
     })
   })
 
-  it('should Promise (error)', done => {
+  it('return Promise (error)', done => {
     Vue.config.silent = true
     renderToString(new Vue({
       render () {
@@ -980,6 +980,15 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('should catch template compilation error', done => {
+    renderToString(new Vue({
+      template: `<div></div><div></div>`
+    }), (err, res) => {
+      expect(err.toString()).toContain('Component template should contain exactly one root element')
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 2d32b5d1b663fa331ec256b73e937af15eb6e3d5 Mon Sep 17 00:00:00 2001
From: Mark Brouch <mark.brouch@gmail.com>
Date: Tue, 10 Oct 2017 10:06:47 -0500
Subject: [PATCH 155/911] feat(ssr): auto-remove initial state script if prod
 (#6763)

close #6761
---
 src/server/template-renderer/index.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index 48aa0caa68d..680e1713a92 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -191,10 +191,13 @@ export default class TemplateRenderer {
       contextKey = 'state',
       windowKey = '__INITIAL_STATE__'
     } = options || {}
+    const autoRemove = process.env.NODE_ENV === 'production'
+      ? '(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
+      : ''
     return context[contextKey]
       ? `<script>window.${windowKey}=${
           serialize(context[contextKey], { isJSON: true })
-        }</script>`
+        }${autoRemove}</script>`
       : ''
   }
 

From 68bdbf508b915872627676d6bf987bdac9e5fe97 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 10 Oct 2017 12:21:42 -0400
Subject: [PATCH 156/911] fix: perperly handle v-if on <template> scoped slot

fix #6725
---
 src/compiler/codegen/index.js                 |  9 +++--
 .../component/component-scoped-slot.spec.js   | 36 +++++++++++++++++++
 2 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index a8c7d4d5e70..17b31e5b510 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -343,11 +343,14 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return `{key:${key},fn:function(${String(el.slotScope)}){` +
+  const fn = `function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
+      ? el.if
+        ? `${el.if}?${genChildren(el, state) || 'undefined'}:undefined`
+        : genChildren(el, state) || 'undefined'
       : genElement(el, state)
-  }}}`
+  }}`
+  return `{key:${key},fn:${fn}}`
 }
 
 function genForScopedSlot (
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 8c17befde28..4fab0127ea7 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -557,4 +557,40 @@ describe('Component scoped slot', () => {
       expect(vm.$el.innerHTML).toBe('<span>world foo</span> <span>world bar</span> <span>world abc</span>')
     }).then(done)
   })
+
+  // #6725
+  it('scoped slot with v-if', done => {
+    const vm = new Vue({
+      data: {
+        ok: false
+      },
+      template: `
+        <test>
+          <template v-if="ok" slot-scope="foo">
+            <p>{{ foo.text }}</p>
+          </template>
+        </test>
+      `,
+      components: {
+        test: {
+          data () {
+            return { msg: 'hello' }
+          },
+          template: `
+            <div>
+              <slot :text="msg">
+                <span>{{ msg }} fallback</span>
+              </slot>
+            </div>
+          `
+        }
+      }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe('<span>hello fallback</span>')
+
+    vm.ok = true
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe('<p>hello</p>')
+    }).then(done)
+  })
 })

From ea0d227d2ddfa5fc5e1112acf9cd485b4eae62cb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 10 Oct 2017 22:33:16 -0400
Subject: [PATCH 157/911] feat: functional component support for compiled
 templates

---
 src/core/instance/render-helpers/index.js     | 30 ++++++++
 .../instance/render-helpers/render-static.js  | 13 +++-
 src/core/instance/render.js                   | 45 ++---------
 src/core/vdom/create-functional-component.js  | 52 ++++++++++---
 test/unit/features/options/functional.spec.js | 75 +++++++++++++++++++
 5 files changed, 162 insertions(+), 53 deletions(-)
 create mode 100644 src/core/instance/render-helpers/index.js

diff --git a/src/core/instance/render-helpers/index.js b/src/core/instance/render-helpers/index.js
new file mode 100644
index 00000000000..38414a9ab53
--- /dev/null
+++ b/src/core/instance/render-helpers/index.js
@@ -0,0 +1,30 @@
+/* @flow */
+
+import { toNumber, toString, looseEqual, looseIndexOf } from 'shared/util'
+import { createTextVNode, createEmptyVNode } from 'core/vdom/vnode'
+import { renderList } from './render-list'
+import { renderSlot } from './render-slot'
+import { resolveFilter } from './resolve-filter'
+import { checkKeyCodes } from './check-keycodes'
+import { bindObjectProps } from './bind-object-props'
+import { renderStatic, markOnce } from './render-static'
+import { bindObjectListeners } from './bind-object-listeners'
+import { resolveScopedSlots } from './resolve-slots'
+
+export function installRenderHelpers (target: any) {
+  target._o = markOnce
+  target._n = toNumber
+  target._s = toString
+  target._l = renderList
+  target._t = renderSlot
+  target._q = looseEqual
+  target._i = looseIndexOf
+  target._m = renderStatic
+  target._f = resolveFilter
+  target._k = checkKeyCodes
+  target._b = bindObjectProps
+  target._v = createTextVNode
+  target._e = createEmptyVNode
+  target._u = resolveScopedSlots
+  target._g = bindObjectListeners
+}
diff --git a/src/core/instance/render-helpers/render-static.js b/src/core/instance/render-helpers/render-static.js
index 9ee977eb96b..552536fec0e 100644
--- a/src/core/instance/render-helpers/render-static.js
+++ b/src/core/instance/render-helpers/render-static.js
@@ -9,7 +9,14 @@ export function renderStatic (
   index: number,
   isInFor?: boolean
 ): VNode | Array<VNode> {
-  let tree = this._staticTrees[index]
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same trees
+  let options = this.constructor.options
+  if (this.$options.staticRenderFns !== options.staticRenderFns) {
+    options = this.$options
+  }
+  const trees = options._staticTrees || (options._staticTrees = [])
+  let tree = trees[index]
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
   if (tree && !isInFor) {
@@ -18,8 +25,8 @@ export function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy)
+  tree = trees[index] =
+    options.staticRenderFns[index].call(this._renderProxy, null, this)
   markStatic(tree, `__static__${index}`, false)
   return tree
 }
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index b492316a0df..21a21c9c754 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -3,33 +3,18 @@
 import {
   warn,
   nextTick,
-  toNumber,
-  toString,
-  looseEqual,
   emptyObject,
   handleError,
-  looseIndexOf,
   defineReactive
 } from '../util/index'
 
-import VNode, {
-  cloneVNodes,
-  createTextVNode,
-  createEmptyVNode
-} from '../vdom/vnode'
+import { createElement } from '../vdom/create-element'
+import { installRenderHelpers } from './render-helpers/index'
+import { resolveSlots } from './render-helpers/resolve-slots'
+import VNode, { cloneVNodes, createEmptyVNode } from '../vdom/vnode'
 
 import { isUpdatingChildComponent } from './lifecycle'
 
-import { createElement } from '../vdom/create-element'
-import { renderList } from './render-helpers/render-list'
-import { renderSlot } from './render-helpers/render-slot'
-import { resolveFilter } from './render-helpers/resolve-filter'
-import { checkKeyCodes } from './render-helpers/check-keycodes'
-import { bindObjectProps } from './render-helpers/bind-object-props'
-import { renderStatic, markOnce } from './render-helpers/render-static'
-import { bindObjectListeners } from './render-helpers/bind-object-listeners'
-import { resolveSlots, resolveScopedSlots } from './render-helpers/resolve-slots'
-
 export function initRender (vm: Component) {
   vm._vnode = null // the root of the child tree
   vm._staticTrees = null
@@ -65,6 +50,9 @@ export function initRender (vm: Component) {
 }
 
 export function renderMixin (Vue: Class<Component>) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype)
+
   Vue.prototype.$nextTick = function (fn: Function) {
     return nextTick(fn, this)
   }
@@ -135,23 +123,4 @@ export function renderMixin (Vue: Class<Component>) {
     vnode.parent = _parentVnode
     return vnode
   }
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce
-  Vue.prototype._n = toNumber
-  Vue.prototype._s = toString
-  Vue.prototype._l = renderList
-  Vue.prototype._t = renderSlot
-  Vue.prototype._q = looseEqual
-  Vue.prototype._i = looseIndexOf
-  Vue.prototype._m = renderStatic
-  Vue.prototype._f = resolveFilter
-  Vue.prototype._k = checkKeyCodes
-  Vue.prototype._b = bindObjectProps
-  Vue.prototype._v = createTextVNode
-  Vue.prototype._e = createEmptyVNode
-  Vue.prototype._u = resolveScopedSlots
-  Vue.prototype._g = bindObjectListeners
 }
diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index f13589370b3..74c36ea7b90 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -4,6 +4,7 @@ import VNode from './vnode'
 import { createElement } from './create-element'
 import { resolveInject } from '../instance/inject'
 import { resolveSlots } from '../instance/render-helpers/resolve-slots'
+import { installRenderHelpers } from '../instance/render-helpers/index'
 
 import {
   isDef,
@@ -12,15 +13,43 @@ import {
   validateProp
 } from '../util/index'
 
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  const options = Ctor.options
+  this.data = data
+  this.props = props
+  this.children = children
+  this.parent = parent
+  this.listeners = data.on || emptyObject
+  this.injections = resolveInject(options.inject, parent)
+  this.slots = () => resolveSlots(children, parent)
+  // support for compiled functional template
+  if (options._compiled) {
+    this.constructor = Ctor
+    this.$options = options
+    this._c = parent._c
+    this.$slots = this.slots()
+    this.$scopedSlots = data.scopedSlots || emptyObject
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype)
+
 export function createFunctionalComponent (
   Ctor: Class<Component>,
   propsData: ?Object,
   data: VNodeData,
-  context: Component,
+  contextVm: Component,
   children: ?Array<VNode>
 ): VNode | void {
+  const options = Ctor.options
   const props = {}
-  const propOptions = Ctor.options.props
+  const propOptions = options.props
   if (isDef(propOptions)) {
     for (const key in propOptions) {
       props[key] = validateProp(key, propOptions, propsData || emptyObject)
@@ -31,20 +60,19 @@ export function createFunctionalComponent (
   }
   // ensure the createElement function in functional components
   // gets a unique context - this is necessary for correct named slot check
-  const _context = Object.create(context)
-  const h = (a, b, c, d) => createElement(_context, a, b, c, d, true)
-  const vnode = Ctor.options.render.call(null, h, {
+  const _contextVm = Object.create(contextVm)
+  const h = (a, b, c, d) => createElement(_contextVm, a, b, c, d, true)
+  const renderContext = new FunctionalRenderContext(
     data,
     props,
     children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: () => resolveSlots(children, context)
-  })
+    contextVm,
+    Ctor
+  )
+  const vnode = options.render.call(null, h, renderContext)
   if (vnode instanceof VNode) {
-    vnode.functionalContext = context
-    vnode.functionalOptions = Ctor.options
+    vnode.functionalContext = contextVm
+    vnode.functionalOptions = options
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot
     }
diff --git a/test/unit/features/options/functional.spec.js b/test/unit/features/options/functional.spec.js
index 9bdff840aca..ecbd0be3c55 100644
--- a/test/unit/features/options/functional.spec.js
+++ b/test/unit/features/options/functional.spec.js
@@ -185,4 +185,79 @@ describe('Options functional', () => {
     const vnode = h('child')
     expect(vnode).toEqual(createEmptyVNode())
   })
+
+  it('should work with render fns compiled from template', done => {
+    // code generated via vue-template-es2015-compiler
+    var render = function (_h, _vm) {
+      var _c = _vm._c
+      return _c(
+        'div',
+        [
+          _c('h2', { staticClass: 'red' }, [_vm._v(_vm._s(_vm.props.msg))]),
+          _vm._t('default'),
+          _vm._t('slot2'),
+          _vm._t('scoped', null, { msg: _vm.props.msg }),
+          _vm._m(0),
+          _c('div', { staticClass: 'clickable', on: { click: _vm.parent.fn }}, [
+            _vm._v('click me')
+          ])
+        ],
+        2
+      )
+    }
+    var staticRenderFns = [
+      function (_h, _vm) {
+        var _c = _vm._c
+        return _c('div', [_vm._v('Some '), _c('span', [_vm._v('text')])])
+      }
+    ]
+
+    const child = {
+      functional: true,
+      _compiled: true,
+      render,
+      staticRenderFns
+    }
+
+    const parent = new Vue({
+      components: {
+        child
+      },
+      data: {
+        msg: 'hello'
+      },
+      template: `
+      <div>
+        <child :msg="msg">
+          <span>{{ msg }}</span>
+          <div slot="slot2">Second slot</div>
+          <template slot="scoped" slot-scope="scope">{{ scope.msg }}</template>
+        </child>
+      </div>
+      `,
+      methods: {
+        fn () {
+          this.msg = 'bye'
+        }
+      }
+    }).$mount()
+
+    function assertMarkup () {
+      expect(parent.$el.innerHTML).toBe(
+        `<div>` +
+          `<h2 class="red">${parent.msg}</h2>` +
+          `<span>${parent.msg}</span> ` +
+          `<div>Second slot</div>` +
+          parent.msg +
+          // static
+          `<div>Some <span>text</span></div>` +
+          `<div class="clickable">click me</div>` +
+        `</div>`
+      )
+    }
+
+    assertMarkup()
+    triggerEvent(parent.$el.querySelector('.clickable'), 'click')
+    waitForUpdate(assertMarkup).then(done)
+  })
 })

From 050bb33f9b02589357c037623ea8cbf8ff13555b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 11 Oct 2017 10:38:46 -0400
Subject: [PATCH 158/911] feat: scoped CSS support for functional components

---
 src/core/vdom/create-functional-component.js | 36 ++++++++++++++++----
 src/core/vdom/patch.js                       | 15 +++++---
 src/core/vdom/vnode.js                       |  1 +
 src/server/render.js                         | 12 ++++---
 test/unit/features/options/_scopeId.spec.js  | 21 ++++++++++++
 5 files changed, 69 insertions(+), 16 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 74c36ea7b90..b3d1c967c3d 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -8,6 +8,7 @@ import { installRenderHelpers } from '../instance/render-helpers/index'
 
 import {
   isDef,
+  isTrue,
   camelize,
   emptyObject,
   validateProp
@@ -28,14 +29,35 @@ function FunctionalRenderContext (
   this.listeners = data.on || emptyObject
   this.injections = resolveInject(options.inject, parent)
   this.slots = () => resolveSlots(children, parent)
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  const contextVm = Object.create(parent)
+  const isCompiled = isTrue(options._compiled)
+  const needNormalization = !isCompiled
+
   // support for compiled functional template
-  if (options._compiled) {
+  if (isCompiled) {
+    // exposing constructor and $options for renderStatic() because it needs
+    // to cache the rendered trees on shared options
     this.constructor = Ctor
     this.$options = options
-    this._c = parent._c
+    // pre-resolve slots for renderSlot()
     this.$slots = this.slots()
     this.$scopedSlots = data.scopedSlots || emptyObject
   }
+
+  if (options._scopeId) {
+    this._c = (a, b, c, d) => {
+      const vnode: ?VNode = createElement(contextVm, a, b, c, d, needNormalization)
+      if (vnode) {
+        vnode.fnScopeId = options._scopeId
+      }
+      return vnode
+    }
+  } else {
+    this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization)
+  }
 }
 
 installRenderHelpers(FunctionalRenderContext.prototype)
@@ -58,10 +80,7 @@ export function createFunctionalComponent (
     if (isDef(data.attrs)) mergeProps(props, data.attrs)
     if (isDef(data.props)) mergeProps(props, data.props)
   }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  const _contextVm = Object.create(contextVm)
-  const h = (a, b, c, d) => createElement(_contextVm, a, b, c, d, true)
+
   const renderContext = new FunctionalRenderContext(
     data,
     props,
@@ -69,7 +88,9 @@ export function createFunctionalComponent (
     contextVm,
     Ctor
   )
-  const vnode = options.render.call(null, h, renderContext)
+
+  const vnode = options.render.call(null, renderContext._c, renderContext)
+
   if (vnode instanceof VNode) {
     vnode.functionalContext = contextVm
     vnode.functionalOptions = options
@@ -77,6 +98,7 @@ export function createFunctionalComponent (
       (vnode.data || (vnode.data = {})).slot = data.slot
     }
   }
+
   return vnode
 }
 
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 65764b6360f..7358b7430de 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -281,16 +281,21 @@ export function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     let i
-    let ancestor = vnode
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '')
+    if (isDef(i = vnode.fnScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '')
+    } else {
+      let ancestor = vnode
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '')
+        }
+        ancestor = ancestor.parent
       }
-      ancestor = ancestor.parent
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '')
diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index b58664cdc77..3b19a9b4d27 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -23,6 +23,7 @@ export default class VNode {
   asyncMeta: Object | void;
   isAsyncPlaceholder: boolean;
   ssrContext: Object | void;
+  fnScopeId: ?string;
 
   constructor (
     tag?: string,
diff --git a/src/server/render.js b/src/server/render.js
index 8be73cf3f6d..0ca49f7c2ba 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -342,11 +342,15 @@ function renderStartingTag (node: VNode, context) {
   ) {
     markup += ` ${(scopeId: any)}`
   }
-  while (isDef(node)) {
-    if (isDef(scopeId = node.context.$options._scopeId)) {
-      markup += ` ${scopeId}`
+  if (isDef(node.fnScopeId)) {
+    markup += ` ${node.fnScopeId}`
+  } else {
+    while (isDef(node)) {
+      if (isDef(scopeId = node.context.$options._scopeId)) {
+        markup += ` ${scopeId}`
+      }
+      node = node.parent
     }
-    node = node.parent
   }
   return markup + '>'
 }
diff --git a/test/unit/features/options/_scopeId.spec.js b/test/unit/features/options/_scopeId.spec.js
index a01327a541c..be13b9dc22c 100644
--- a/test/unit/features/options/_scopeId.spec.js
+++ b/test/unit/features/options/_scopeId.spec.js
@@ -68,4 +68,25 @@ describe('Options _scopeId', () => {
       expect(child.$el.hasAttribute('data-2')).toBe(true)
     }).then(done)
   })
+
+  it('should work on functional components', () => {
+    const child = {
+      functional: true,
+      _scopeId: 'child',
+      render (h) {
+        return h('div', { class: 'child' }, 'child')
+      }
+    }
+    const vm = new Vue({
+      _scopeId: 'parent',
+      components: { child },
+      template: '<div><child></child></div>'
+    }).$mount()
+
+    expect(vm.$el.hasAttribute('parent')).toBe(true)
+    const childEl = vm.$el.querySelector('.child')
+    expect(childEl.hasAttribute('child')).toBe(true)
+    // functional component with scopeId will not inherit parent scopeId
+    expect(childEl.hasAttribute('parent')).toBe(false)
+  })
 })

From 421658884f7ca786747abf9b89e00925fdfdfba8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 11 Oct 2017 11:17:46 -0400
Subject: [PATCH 159/911] fix: fix scoped CSS for nested nodes in functional
 components

---
 src/core/vdom/create-functional-component.js |  3 ++-
 src/core/vdom/patch.js                       |  2 +-
 src/core/vdom/vnode.js                       |  9 +++++++--
 test/unit/features/options/_scopeId.spec.js  | 14 +++++++++-----
 4 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index b3d1c967c3d..24f57e52c6c 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -51,7 +51,8 @@ function FunctionalRenderContext (
     this._c = (a, b, c, d) => {
       const vnode: ?VNode = createElement(contextVm, a, b, c, d, needNormalization)
       if (vnode) {
-        vnode.fnScopeId = options._scopeId
+        vnode.functionalScopeId = options._scopeId
+        vnode.functionalContext = parent
       }
       return vnode
     }
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 7358b7430de..f41f5a90763 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -281,7 +281,7 @@ export function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     let i
-    if (isDef(i = vnode.fnScopeId)) {
+    if (isDef(i = vnode.functionalScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '')
     } else {
       let ancestor = vnode
diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 3b19a9b4d27..3c5f2322712 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -8,11 +8,12 @@ export default class VNode {
   elm: Node | void;
   ns: string | void;
   context: Component | void; // rendered in this component's scope
-  functionalContext: Component | void; // only for functional component root nodes
   key: string | number | void;
   componentOptions: VNodeComponentOptions | void;
   componentInstance: Component | void; // component instance
   parent: VNode | void; // component placeholder node
+
+  // strictly internal
   raw: boolean; // contains raw HTML? (server only)
   isStatic: boolean; // hoisted static node
   isRootInsert: boolean; // necessary for enter transition check
@@ -23,7 +24,9 @@ export default class VNode {
   asyncMeta: Object | void;
   isAsyncPlaceholder: boolean;
   ssrContext: Object | void;
-  fnScopeId: ?string;
+  functionalContext: Component | void; // real context vm for functional nodes
+  functionalOptions: ?ComponentOptions; // for SSR caching
+  functionalScopeId: ?string; // functioanl scope id support
 
   constructor (
     tag?: string,
@@ -43,6 +46,8 @@ export default class VNode {
     this.ns = undefined
     this.context = context
     this.functionalContext = undefined
+    this.functioanlOptions = undefined
+    this.functionalScopeId = undefined
     this.key = data && data.key
     this.componentOptions = componentOptions
     this.componentInstance = undefined
diff --git a/test/unit/features/options/_scopeId.spec.js b/test/unit/features/options/_scopeId.spec.js
index be13b9dc22c..ec45f902c32 100644
--- a/test/unit/features/options/_scopeId.spec.js
+++ b/test/unit/features/options/_scopeId.spec.js
@@ -74,7 +74,9 @@ describe('Options _scopeId', () => {
       functional: true,
       _scopeId: 'child',
       render (h) {
-        return h('div', { class: 'child' }, 'child')
+        return h('div', { class: 'child' }, [
+          h('span', { class: 'child' }, 'child')
+        ])
       }
     }
     const vm = new Vue({
@@ -84,9 +86,11 @@ describe('Options _scopeId', () => {
     }).$mount()
 
     expect(vm.$el.hasAttribute('parent')).toBe(true)
-    const childEl = vm.$el.querySelector('.child')
-    expect(childEl.hasAttribute('child')).toBe(true)
-    // functional component with scopeId will not inherit parent scopeId
-    expect(childEl.hasAttribute('parent')).toBe(false)
+    const childEls = vm.$el.querySelectorAll('.child')
+    ;[].forEach.call(childEls, el => {
+      expect(el.hasAttribute('child')).toBe(true)
+      // functional component with scopeId will not inherit parent scopeId
+      expect(el.hasAttribute('parent')).toBe(false)
+    })
   })
 })

From 53431c63a9033bb9a73c915bca8525f0d7988c26 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 11 Oct 2017 11:24:39 -0400
Subject: [PATCH 160/911] types: fix flow typing

---
 src/core/vdom/vnode.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 3c5f2322712..a34330de55b 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -46,7 +46,7 @@ export default class VNode {
     this.ns = undefined
     this.context = context
     this.functionalContext = undefined
-    this.functioanlOptions = undefined
+    this.functionalOptions = undefined
     this.functionalScopeId = undefined
     this.key = data && data.key
     this.componentOptions = componentOptions

From bb1d888d44ddc39f06de5232883c8e3766a47be0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 11 Oct 2017 12:04:07 -0400
Subject: [PATCH 161/911] refactor: remove no longer needed _staticTrees
 property

---
 flow/component.js           |  1 -
 src/core/instance/render.js | 10 +---------
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/flow/component.js b/flow/component.js
index 71867ba3c71..5286944553c 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -66,7 +66,6 @@ declare interface Component {
   _isDestroyed: boolean;
   _isBeingDestroyed: boolean;
   _vnode: ?VNode; // self root node
-  _staticTrees: ?Array<VNode>;
   _hasHookEvent: boolean;
   _provided: ?Object;
 
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 21a21c9c754..8a597594f9a 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -17,7 +17,6 @@ import { isUpdatingChildComponent } from './lifecycle'
 
 export function initRender (vm: Component) {
   vm._vnode = null // the root of the child tree
-  vm._staticTrees = null
   const parentVnode = vm.$vnode = vm.$options._parentVnode // the placeholder node in parent tree
   const renderContext = parentVnode && parentVnode.context
   vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext)
@@ -59,11 +58,7 @@ export function renderMixin (Vue: Class<Component>) {
 
   Vue.prototype._render = function (): VNode {
     const vm: Component = this
-    const {
-      render,
-      staticRenderFns,
-      _parentVnode
-    } = vm.$options
+    const { render, _parentVnode } = vm.$options
 
     if (vm._isMounted) {
       // if the parent didn't update, the slot nodes will be the ones from
@@ -78,9 +73,6 @@ export function renderMixin (Vue: Class<Component>) {
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = []
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode

From ea3a70b2d59b9d4ecae2bd2438f89dc16e1e1394 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 11 Oct 2017 13:16:02 -0400
Subject: [PATCH 162/911] chore: fix sponsor link typo

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 4edfa403b27..f3c43fbef4b 100644
--- a/README.md
+++ b/README.md
@@ -141,7 +141,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <h4 align="center">Gold</h4>
 
 <a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponosr/1/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponosr/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/bronzesponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/2/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/3/avatar.svg"></a>

From 12255ff220ac8cd0171aa0ed56ce630a6843b2bd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 09:12:16 -0400
Subject: [PATCH 163/911] refactor: simplify functional renderStatic

---
 src/core/instance/render-helpers/render-static.js | 14 +++++---------
 src/core/instance/render.js                       |  9 +++++----
 src/core/vdom/create-functional-component.js      |  4 +---
 3 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/src/core/instance/render-helpers/render-static.js b/src/core/instance/render-helpers/render-static.js
index 552536fec0e..02f424d234b 100644
--- a/src/core/instance/render-helpers/render-static.js
+++ b/src/core/instance/render-helpers/render-static.js
@@ -10,13 +10,10 @@ export function renderStatic (
   isInFor?: boolean
 ): VNode | Array<VNode> {
   // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same trees
-  let options = this.constructor.options
-  if (this.$options.staticRenderFns !== options.staticRenderFns) {
-    options = this.$options
-  }
-  const trees = options._staticTrees || (options._staticTrees = [])
-  let tree = trees[index]
+  // so every instance shares the same cached trees
+  const renderFns = this.$options.staticRenderFns
+  const cached = renderFns.cached || (renderFns.cached = [])
+  let tree = cached[index]
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
   if (tree && !isInFor) {
@@ -25,8 +22,7 @@ export function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = trees[index] =
-    options.staticRenderFns[index].call(this._renderProxy, null, this)
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this)
   markStatic(tree, `__static__${index}`, false)
   return tree
 }
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 8a597594f9a..5b7df25c8dd 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -17,9 +17,10 @@ import { isUpdatingChildComponent } from './lifecycle'
 
 export function initRender (vm: Component) {
   vm._vnode = null // the root of the child tree
-  const parentVnode = vm.$vnode = vm.$options._parentVnode // the placeholder node in parent tree
+  const options = vm.$options
+  const parentVnode = vm.$vnode = options._parentVnode // the placeholder node in parent tree
   const renderContext = parentVnode && parentVnode.context
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext)
+  vm.$slots = resolveSlots(options._renderChildren, renderContext)
   vm.$scopedSlots = emptyObject
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -39,12 +40,12 @@ export function initRender (vm: Component) {
     defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
       !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm)
     }, true)
-    defineReactive(vm, '$listeners', vm.$options._parentListeners || emptyObject, () => {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, () => {
       !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm)
     }, true)
   } else {
     defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true)
-    defineReactive(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true)
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true)
   }
 }
 
diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 24f57e52c6c..d749ab9a7de 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -38,9 +38,7 @@ function FunctionalRenderContext (
 
   // support for compiled functional template
   if (isCompiled) {
-    // exposing constructor and $options for renderStatic() because it needs
-    // to cache the rendered trees on shared options
-    this.constructor = Ctor
+    // exposing $options for renderStatic()
     this.$options = options
     // pre-resolve slots for renderSlot()
     this.$slots = this.slots()

From 795b908095b29e76435479879c1ade7ef759ce7b Mon Sep 17 00:00:00 2001
From: Raymond Muller <raymondmuller@users.noreply.github.com>
Date: Thu, 12 Oct 2017 15:50:40 +0200
Subject: [PATCH 164/911] feat: support RegExp in ignoredElements (#6769)

---
 src/core/vdom/patch.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index f41f5a90763..7cbe44bb487 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -120,7 +120,14 @@ export function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(ignore => {
+              return ignore instanceof RegExp
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(

From 9f576aac7defb9b542a262f76c86b53a2ef13556 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 09:54:17 -0400
Subject: [PATCH 165/911] test: add test for ignoredElements

---
 test/unit/features/global-api/config.spec.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/test/unit/features/global-api/config.spec.js b/test/unit/features/global-api/config.spec.js
index bd97c40da69..1edfc3c7829 100644
--- a/test/unit/features/global-api/config.spec.js
+++ b/test/unit/features/global-api/config.spec.js
@@ -44,4 +44,15 @@ describe('Global config', () => {
       expect(test.$options.__test__).toBe(3)
     })
   })
+
+  describe('ignoredElements', () => {
+    it('should work', () => {
+      Vue.config.ignoredElements = ['foo', /^ion-/]
+      new Vue({
+        template: `<div><foo/><ion-foo/><ion-bar/></div>`
+      }).$mount()
+      expect('Unknown custom element').not.toHaveBeenWarned()
+      Vue.config.ignoredElements = []
+    })
+  })
 })

From adff0084e1b7bc4b8ffa2b87390c66afbc435582 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 10:56:45 -0400
Subject: [PATCH 166/911] refactor: use isRegExp for safer check

---
 src/core/vdom/patch.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 7cbe44bb487..f06a1feb079 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -23,6 +23,7 @@ import {
   isUndef,
   isTrue,
   makeMap,
+  isRegExp,
   isPrimitive
 } from '../util/index'
 
@@ -123,7 +124,7 @@ export function createPatchFunction (backend) {
           !(
             config.ignoredElements.length &&
             config.ignoredElements.some(ignore => {
-              return ignore instanceof RegExp
+              return isRegExp(ignore)
                 ? ignore.test(tag)
                 : ignore === tag
             })

From b7105ae8c9093e36ec89a470caa3b78bda3ef467 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 10:57:02 -0400
Subject: [PATCH 167/911] refactor: improve option type check warnings

---
 src/core/instance/state.js                    | 13 ----
 src/core/util/debug.js                        | 16 ++---
 src/core/util/options.js                      | 67 ++++++++++++++++---
 src/core/util/props.js                        |  7 +-
 src/shared/util.js                            |  7 ++
 test/helpers/test-object-option.js            |  8 +--
 test/unit/features/options/components.spec.js |  3 +
 test/unit/features/options/computed.spec.js   |  4 +-
 test/unit/features/options/extends.spec.js    | 59 +++++++---------
 test/unit/features/options/inject.spec.js     |  3 +
 test/unit/features/options/methods.spec.js    |  4 +-
 test/unit/features/options/props.spec.js      |  3 +
 12 files changed, 115 insertions(+), 79 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 017e1694f8b..4fa6f15bac8 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -61,16 +61,6 @@ export function initState (vm: Component) {
   }
 }
 
-function checkOptionType (vm: Component, name: string) {
-  const option = vm.$options[name]
-  if (!isPlainObject(option)) {
-    warn(
-      `component option "${name}" should be an object.`,
-      vm
-    )
-  }
-}
-
 function initProps (vm: Component, propsOptions: Object) {
   const propsData = vm.$options.propsData || {}
   const props = vm._props = {}
@@ -171,7 +161,6 @@ function getData (data: Function, vm: Component): any {
 const computedWatcherOptions = { lazy: true }
 
 function initComputed (vm: Component, computed: Object) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed')
   const watchers = vm._computedWatchers = Object.create(null)
   // computed properties are just getters during SSR
   const isSSR = isServerRendering()
@@ -260,7 +249,6 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm: Component, methods: Object) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods')
   const props = vm.$options.props
   for (const key in methods) {
     if (process.env.NODE_ENV !== 'production') {
@@ -289,7 +277,6 @@ function initMethods (vm: Component, methods: Object) {
 }
 
 function initWatch (vm: Component, watch: Object) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch')
   for (const key in watch) {
     const handler = watch[key]
     if (Array.isArray(handler)) {
diff --git a/src/core/util/debug.js b/src/core/util/debug.js
index 4508ac2d36a..6b7315f4b20 100644
--- a/src/core/util/debug.js
+++ b/src/core/util/debug.js
@@ -37,15 +37,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    let name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name
-
-    const file = vm._isVue && vm.$options.__file
+    const options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {}
+    let name = options.name || options._componentTag
+    const file = options.__file
     if (!name && file) {
       const match = file.match(/([^/\\]+)\.vue$/)
       name = match && match[1]
diff --git a/src/core/util/options.js b/src/core/util/options.js
index 8461a722f5c..c42245e0389 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -14,6 +14,7 @@ import {
   extend,
   hasOwn,
   camelize,
+  toRawType,
   capitalize,
   isBuiltInTag,
   isPlainObject
@@ -155,11 +156,19 @@ LIFECYCLE_HOOKS.forEach(hook => {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal: ?Object, childVal: ?Object): Object {
+function mergeAssets (
+  parentVal: ?Object,
+  childVal: ?Object,
+  vm?: Component,
+  key: string
+): Object {
   const res = Object.create(parentVal || null)
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm)
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -172,12 +181,20 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal: ?Object, childVal: ?Object): ?Object {
+strats.watch = function (
+  parentVal: ?Object,
+  childVal: ?Object,
+  vm?: Component,
+  key: string
+): ?Object {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) parentVal = undefined
   if (childVal === nativeWatch) childVal = undefined
   /* istanbul ignore if */
   if (!childVal) return Object.create(parentVal || null)
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm)
+  }
   if (!parentVal) return childVal
   const ret = {}
   extend(ret, parentVal)
@@ -200,7 +217,15 @@ strats.watch = function (parentVal: ?Object, childVal: ?Object): ?Object {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal: ?Object, childVal: ?Object): ?Object {
+strats.computed = function (
+  parentVal: ?Object,
+  childVal: ?Object,
+  vm?: Component,
+  key: string
+): ?Object {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm)
+  }
   if (!parentVal) return childVal
   const ret = Object.create(null)
   extend(ret, parentVal)
@@ -237,7 +262,7 @@ function checkComponents (options: Object) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options: Object) {
+function normalizeProps (options: Object, vm: ?Component) {
   const props = options.props
   if (!props) return
   const res = {}
@@ -261,6 +286,12 @@ function normalizeProps (options: Object) {
         ? val
         : { type: val }
     }
+  } else if (process.env.NODE_ENV !== 'production' && props) {
+    warn(
+      `Invalid value for option "props": expected an Array or an Object, ` +
+      `but got ${toRawType(props)}.`,
+      vm
+    )
   }
   options.props = res
 }
@@ -268,7 +299,7 @@ function normalizeProps (options: Object) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options: Object) {
+function normalizeInject (options: Object, vm: ?Component) {
   const inject = options.inject
   const normalized = options.inject = {}
   if (Array.isArray(inject)) {
@@ -282,6 +313,12 @@ function normalizeInject (options: Object) {
         ? extend({ from: key }, val)
         : { from: val }
     }
+  } else if (process.env.NODE_ENV !== 'production' && inject) {
+    warn(
+      `Invalid value for option "inject": expected an Array or an Object, ` +
+      `but got ${toRawType(inject)}.`,
+      vm
+    )
   }
 }
 
@@ -300,6 +337,16 @@ function normalizeDirectives (options: Object) {
   }
 }
 
+function assertObjectType (name: string, value: any, vm: ?Component) {
+  if (!isPlainObject(value)) {
+    warn(
+      `Invalid value for option "${name}": expected an Object, ` +
+      `but got ${toRawType(value)}.`,
+      vm
+    )
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -317,8 +364,8 @@ export function mergeOptions (
     child = child.options
   }
 
-  normalizeProps(child)
-  normalizeInject(child)
+  normalizeProps(child, vm)
+  normalizeInject(child, vm)
   normalizeDirectives(child)
   const extendsFrom = child.extends
   if (extendsFrom) {
diff --git a/src/core/util/props.js b/src/core/util/props.js
index 3e57ae8e4f3..310514d7df6 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -5,6 +5,7 @@ import { observe, observerState } from '../observer/index'
 import {
   hasOwn,
   isObject,
+  toRawType,
   hyphenate,
   capitalize,
   isPlainObject
@@ -118,9 +119,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      `Invalid prop: type check failed for prop "${name}".` +
+      ` Expected ${expectedTypes.map(capitalize).join(', ')}` +
+      `, got ${toRawType(value)}.`,
       vm
     )
     return
diff --git a/src/shared/util.js b/src/shared/util.js
index 81e3e9f8956..353b9829980 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -38,8 +38,15 @@ export function isObject (obj: mixed): boolean %checks {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 const _toString = Object.prototype.toString
 
+export function toRawType (value: any): string {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
diff --git a/test/helpers/test-object-option.js b/test/helpers/test-object-option.js
index 491126585c6..058929291c8 100644
--- a/test/helpers/test-object-option.js
+++ b/test/helpers/test-object-option.js
@@ -1,17 +1,17 @@
 import Vue from 'vue'
 
 export default function testObjectOption (name) {
-  it('should warn non object value', () => {
+  it(`Options ${name}: should warn non object value`, () => {
     const options = {}
     options[name] = () => {}
     new Vue(options)
-    expect(`component option "${name}" should be an object`).toHaveBeenWarned()
+    expect(`Invalid value for option "${name}"`).toHaveBeenWarned()
   })
 
-  it('should not warn valid object value', () => {
+  it(`Options ${name}: should not warn valid object value`, () => {
     const options = {}
     options[name] = {}
     new Vue(options)
-    expect(`component option "${name}" should be an object`).not.toHaveBeenWarned()
+    expect(`Invalid value for option "${name}"`).not.toHaveBeenWarned()
   })
 }
diff --git a/test/unit/features/options/components.spec.js b/test/unit/features/options/components.spec.js
index 52733436d3b..1a94380c322 100644
--- a/test/unit/features/options/components.spec.js
+++ b/test/unit/features/options/components.spec.js
@@ -1,7 +1,10 @@
 import Vue from 'vue'
 import { UA } from 'core/util/env'
+import testObjectOption from '../../../helpers/test-object-option'
 
 describe('Options components', () => {
+  testObjectOption('components')
+
   it('should accept plain object', () => {
     const vm = new Vue({
       template: '<test></test>',
diff --git a/test/unit/features/options/computed.spec.js b/test/unit/features/options/computed.spec.js
index ae1c91e4e36..edc20bad3bf 100644
--- a/test/unit/features/options/computed.spec.js
+++ b/test/unit/features/options/computed.spec.js
@@ -2,6 +2,8 @@ import Vue from 'vue'
 import testObjectOption from '../../../helpers/test-object-option'
 
 describe('Options computed', () => {
+  testObjectOption('computed')
+
   it('basic usage', done => {
     const vm = new Vue({
       template: '<div>{{ b }}</div>',
@@ -49,8 +51,6 @@ describe('Options computed', () => {
     }).then(done)
   })
 
-  testObjectOption('computed')
-
   it('warn with setter and no getter', () => {
     const vm = new Vue({
       template: `
diff --git a/test/unit/features/options/extends.spec.js b/test/unit/features/options/extends.spec.js
index a7f9c4f712d..1734640202e 100644
--- a/test/unit/features/options/extends.spec.js
+++ b/test/unit/features/options/extends.spec.js
@@ -1,4 +1,5 @@
 import Vue from 'vue'
+import { nativeWatch } from 'core/util/env'
 
 describe('Options extends', () => {
   it('should work on objects', () => {
@@ -47,42 +48,28 @@ describe('Options extends', () => {
     expect(vm.c).toBe(3)
   })
 
-  it('should work with global mixins + Object.prototype.watch', done => {
-    let fakeWatch = false
-    if (!Object.prototype.watch) {
-      fakeWatch = true
-      // eslint-disable-next-line no-extend-native
-      Object.defineProperty(Object.prototype, 'watch', {
-        writable: true,
-        configurable: true,
-        enumerable: false,
-        value: () => {}
-      })
-    }
-
-    Vue.mixin({})
+  if (nativeWatch) {
+    it('should work with global mixins + Object.prototype.watch', done => {
+      Vue.mixin({})
 
-    const spy = jasmine.createSpy('watch')
-    const A = Vue.extend({
-      data: function () {
-        return { a: 1 }
-      },
-      watch: {
-        a: spy
-      },
-      created: function () {
-        this.a = 2
-      }
-    })
-    new Vue({
-      extends: A
+      const spy = jasmine.createSpy('watch')
+      const A = Vue.extend({
+        data: function () {
+          return { a: 1 }
+        },
+        watch: {
+          a: spy
+        },
+        created: function () {
+          this.a = 2
+        }
+      })
+      new Vue({
+        extends: A
+      })
+      waitForUpdate(() => {
+        expect(spy).toHaveBeenCalledWith(2, 1)
+      }).then(done)
     })
-    waitForUpdate(() => {
-      expect(spy).toHaveBeenCalledWith(2, 1)
-
-      if (fakeWatch) {
-        delete Object.prototype.watch
-      }
-    }).then(done)
-  })
+  }
 })
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index b07d09b7a9b..cd5c7097f31 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -1,8 +1,11 @@
 import Vue from 'vue'
 import { Observer } from 'core/observer/index'
 import { isNative, isObject, hasOwn } from 'core/util/index'
+import testObjectOption from '../../../helpers/test-object-option'
 
 describe('Options provide/inject', () => {
+  testObjectOption('inject')
+
   let injected
   const injectedComp = {
     inject: ['foo', 'bar'],
diff --git a/test/unit/features/options/methods.spec.js b/test/unit/features/options/methods.spec.js
index 96a0de672e3..34f9ee88fc6 100644
--- a/test/unit/features/options/methods.spec.js
+++ b/test/unit/features/options/methods.spec.js
@@ -2,6 +2,8 @@ import Vue from 'vue'
 import testObjectOption from '../../../helpers/test-object-option'
 
 describe('Options methods', () => {
+  testObjectOption('methods')
+
   it('should have correct context', () => {
     const vm = new Vue({
       data: {
@@ -17,8 +19,6 @@ describe('Options methods', () => {
     expect(vm.a).toBe(2)
   })
 
-  testObjectOption('methods')
-
   it('should warn undefined methods', () => {
     new Vue({
       methods: {
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index c92e1ce3dbf..ae2baefff99 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -1,7 +1,10 @@
 import Vue from 'vue'
 import { hasSymbol } from 'core/util/env'
+import testObjectOption from '../../../helpers/test-object-option'
 
 describe('Options props', () => {
+  testObjectOption('props')
+
   it('array syntax', done => {
     const vm = new Vue({
       data: {

From e38d0067521eee85febedc5f3ed3c24b5454c3a9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 11:15:23 -0400
Subject: [PATCH 168/911] feat: improve template expression error message

close #6771
---
 src/compiler/error-detector.js                      | 8 ++++++--
 test/unit/features/options/template.spec.js         | 8 ++++----
 test/unit/modules/compiler/compiler-options.spec.js | 4 ++--
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/compiler/error-detector.js b/src/compiler/error-detector.js
index 186dfdf6e38..6321f4f7a10 100644
--- a/src/compiler/error-detector.js
+++ b/src/compiler/error-detector.js
@@ -89,10 +89,14 @@ function checkExpression (exp: string, text: string, errors: Array<string>) {
     if (keywordMatch) {
       errors.push(
         `avoid using JavaScript keyword as property name: ` +
-        `"${keywordMatch[0]}" in expression ${text.trim()}`
+        `"${keywordMatch[0]}"\n  Raw expression: ${text.trim()}`
       )
     } else {
-      errors.push(`invalid expression: ${text.trim()}`)
+      errors.push(
+        `invalid expression: ${e.message} in\n\n` +
+        `    ${exp}\n\n` +
+        `  Raw expression: ${text.trim()}\n`
+      )
     }
   }
 }
diff --git a/test/unit/features/options/template.spec.js b/test/unit/features/options/template.spec.js
index ffccda11a0a..09aafd3efaa 100644
--- a/test/unit/features/options/template.spec.js
+++ b/test/unit/features/options/template.spec.js
@@ -56,9 +56,9 @@ describe('Options template', () => {
       template: '<div v-if="!@"><span>{{ a"" }}</span><span>{{ do + 1 }}</span></div>'
     }).$mount()
     expect('Error compiling template').toHaveBeenWarned()
-    expect('invalid expression: v-if="!@"').toHaveBeenWarned()
-    expect('invalid expression: {{ a"" }}').toHaveBeenWarned()
-    expect('avoid using JavaScript keyword as property name: "do" in expression {{ do + 1 }}').toHaveBeenWarned()
+    expect('Raw expression: v-if="!@"').toHaveBeenWarned()
+    expect('Raw expression: {{ a"" }}').toHaveBeenWarned()
+    expect('avoid using JavaScript keyword as property name: "do"').toHaveBeenWarned()
   })
 
   it('should not warn $ prefixed keywords', () => {
@@ -75,7 +75,7 @@ describe('Options template', () => {
     expect('Error compiling template').toHaveBeenWarned()
     expect('invalid v-for alias "1"').toHaveBeenWarned()
     expect('invalid v-for iterator "2"').toHaveBeenWarned()
-    expect('invalid expression: v-for="(1, 2) in a----"').toHaveBeenWarned()
+    expect('Raw expression: v-for="(1, 2) in a----"').toHaveBeenWarned()
   })
 
   it('warn error in generated function (v-on)', () => {
diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index f3c04e0985f..78fc8e92363 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -122,7 +122,7 @@ describe('compile options', () => {
 
     compiled = compile('<div v-if="a----">{{ b++++ }}</div>')
     expect(compiled.errors.length).toBe(2)
-    expect(compiled.errors[0]).toContain('invalid expression: v-if="a----"')
-    expect(compiled.errors[1]).toContain('invalid expression: {{ b++++ }}')
+    expect(compiled.errors[0]).toContain('Raw expression: v-if="a----"')
+    expect(compiled.errors[1]).toContain('Raw expression: {{ b++++ }}')
   })
 })

From 1eea1a98f4d0138c9343c6c4dd6ba2f29bf7796f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 20:12:40 -0400
Subject: [PATCH 169/911] build: skip sauce by default in release script

---
 build/release.sh | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/build/release.sh b/build/release.sh
index a2c336a4288..8452944ef8b 100644
--- a/build/release.sh
+++ b/build/release.sh
@@ -20,10 +20,13 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
     npm run test:ssr
   fi
 
-  if [[ -z $SKIP_SAUCE ]]; then
-    export SAUCE_BUILD_ID=$VERSION:`date +"%s"`
-    npm run test:sauce
-  fi
+  # Sauce Labs tests has a decent change of failing
+  # so we usually manually run them before running the release script.
+
+  # if [[ -z $SKIP_SAUCE ]]; then
+  #   export SAUCE_BUILD_ID=$VERSION:`date +"%s"`
+  #   npm run test:sauce
+  # fi
 
   # build
   VERSION=$VERSION npm run build

From a85f95c422e0bde6ce4068f5e44e761d4e00ca08 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 20:41:07 -0400
Subject: [PATCH 170/911] test: use phantom for dev

---
 test/unit/karma.dev.config.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/unit/karma.dev.config.js b/test/unit/karma.dev.config.js
index b69872facc7..9285861e27b 100644
--- a/test/unit/karma.dev.config.js
+++ b/test/unit/karma.dev.config.js
@@ -2,10 +2,10 @@ var base = require('./karma.base.config.js')
 
 module.exports = function (config) {
   config.set(Object.assign(base, {
-    browsers: ['ChromeHeadless'],
+    browsers: ['PhantomJS'],
     reporters: ['progress'],
     plugins: base.plugins.concat([
-      'karma-chrome-launcher'
+      'karma-phantomjs-launcher'
     ])
   }))
 }

From df8f179cfc3b98d6e0f48502cc5071b993d9cdb5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 20:41:36 -0400
Subject: [PATCH 171/911] test: make hydration spec more stable for Edge

---
 test/unit/modules/vdom/patch/hydration.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/modules/vdom/patch/hydration.spec.js b/test/unit/modules/vdom/patch/hydration.spec.js
index c0e2a48c14e..42fb337d55a 100644
--- a/test/unit/modules/vdom/patch/hydration.spec.js
+++ b/test/unit/modules/vdom/patch/hydration.spec.js
@@ -223,7 +223,7 @@ describe('vdom patch: hydration', () => {
         expect(dom.innerHTML).toBe('<span>bar</span>')
         expect(dom.querySelector('span')).toBe(span)
       }).then(done)
-    }, 10)
+    }, 50)
   })
 
   it('should hydrate async component without showing loading', done => {

From bc2918f0e596d0e133a25606cbb66075402ce6c3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 23:04:35 -0400
Subject: [PATCH 172/911] build: build 2.5.0

---
 dist/vue.common.js                            | 1800 +++---
 dist/vue.esm.js                               | 1800 +++---
 dist/vue.js                                   | 1790 +++---
 dist/vue.min.js                               |    4 +-
 dist/vue.runtime.common.js                    | 1909 +++---
 dist/vue.runtime.esm.js                       | 1909 +++---
 dist/vue.runtime.js                           | 1899 +++---
 dist/vue.runtime.min.js                       |    4 +-
 packages/vue-server-renderer/basic.js         | 2007 ++++---
 packages/vue-server-renderer/build.js         | 2126 ++++---
 .../vue-server-renderer/package-lock.json     |    2 +-
 packages/vue-server-renderer/package.json     |    2 +-
 packages/vue-template-compiler/browser.js     | 5141 +++++++++++++++++
 packages/vue-template-compiler/build.js       | 1027 ++--
 packages/vue-template-compiler/package.json   |    2 +-
 packages/weex-template-compiler/build.js      |  492 +-
 16 files changed, 14976 insertions(+), 6938 deletions(-)
 create mode 100644 packages/vue-template-compiler/browser.js

diff --git a/dist/vue.common.js b/dist/vue.common.js
index b184f1287d3..e0c90b8d3fd 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -45,8 +45,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -63,7 +70,7 @@ function isRegExp (v) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -113,7 +120,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -323,7 +330,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -460,7 +468,8 @@ function parsePath (path) {
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -491,15 +500,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -521,7 +528,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -554,23 +561,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -648,45 +682,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -709,6 +738,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -718,7 +748,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -793,6 +823,101 @@ function popTarget () {
   Dep.target = targetStack.pop();
 }
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -878,7 +1003,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -921,7 +1046,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -945,7 +1070,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1028,7 +1153,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1211,11 +1336,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1228,22 +1361,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1256,7 +1397,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1293,7 +1442,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1317,6 +1466,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if (process.env.NODE_ENV !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1324,13 +1479,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
     }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if (process.env.NODE_ENV !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1349,6 +1517,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1366,8 +1544,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1531,9 +1709,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -1637,8 +1815,10 @@ if (process.env.NODE_ENV !== 'production') {
   var warnNonPresent = function (target, key) {
     warn(
       "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     );
   };
@@ -1648,7 +1828,7 @@ if (process.env.NODE_ENV !== 'production') {
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -1698,99 +1878,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode, deep) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
-/*  */
-
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -1798,10 +1885,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1827,11 +1912,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -1840,13 +1920,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1856,20 +1933,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2019,20 +2088,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -2040,7 +2116,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -2059,7 +2135,10 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -2217,8 +2296,8 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -2521,6 +2600,10 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
   };
 }
 
@@ -2564,12 +2647,12 @@ function mountComponent (
       mark(startTag);
       var vnode = vm._render();
       mark(endTag);
-      measure((name + " render"), startTag, endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
       mark(startTag);
       vm._update(vnode, hydrating);
       mark(endTag);
-      measure((name + " patch"), startTag, endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
     };
   } else {
     updateComponent = function () {
@@ -3129,16 +3212,6 @@ function initState (vm) {
   }
 }
 
-function checkOptionType (vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn(
-      ("component option \"" + name + "\" should be an object."),
-      vm
-    );
-  }
-}
-
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
   var props = vm._props = {};
@@ -3153,13 +3226,15 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     if (process.env.NODE_ENV !== 'production') {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
-      defineReactive$$1(props, key, value, function () {
+      defineReactive(props, key, value, function () {
         if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
@@ -3171,7 +3246,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive$$1(props, key, value);
+      defineReactive(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3229,7 +3304,7 @@ function initData (vm) {
 
 function getData (data, vm) {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
@@ -3239,7 +3314,6 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3328,7 +3402,6 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
@@ -3357,7 +3430,6 @@ function initMethods (vm, methods) {
 }
 
 function initWatch (vm, watch) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3451,7 +3523,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
+        defineReactive(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3460,7 +3532,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive$$1(vm, key, result[key]);
+        defineReactive(vm, key, result[key]);
       }
     });
     observerState.shouldConvert = true;
@@ -3480,7 +3552,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3489,8 +3561,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -3499,15 +3578,327 @@ function resolveInject (inject, vm) {
 
 /*  */
 
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && process.env.NODE_ENV !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
+      );
+      slotNodes._rendered = true;
+    }
+    return slotNodes || fallback
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
+    }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
 function createFunctionalComponent (
   Ctor,
   propsData,
   data,
-  context,
+  contextVm,
   children
 ) {
+  var options = Ctor.options;
   var props = {};
-  var propOptions = Ctor.options.props;
+  var propOptions = options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
       props[key] = validateProp(key, propOptions, propsData || emptyObject);
@@ -3516,26 +3907,25 @@ function createFunctionalComponent (
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
     if (isDef(data.props)) { mergeProps(props, data.props); }
   }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
   if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
   }
+
   return vnode
 }
 
@@ -3844,294 +4234,67 @@ function _createElement (
   if (normalizationType === ALWAYS_NORMALIZE) {
     children = normalizeChildren(children);
   } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias
-) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
-  }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
   } else {
-    markStaticNode(tree, key, isOnce);
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) { applyNS(vnode, ns); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
-  return data
 }
 
 /*  */
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
   vm.$scopedSlots = emptyObject;
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -4148,19 +4311,22 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
 function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
   Vue.prototype.$nextTick = function (fn) {
     return nextTick(fn, this)
   };
@@ -4169,7 +4335,6 @@ function renderMixin (Vue) {
     var vm = this;
     var ref = vm.$options;
     var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
@@ -4185,9 +4350,6 @@ function renderMixin (Vue) {
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode;
@@ -4196,14 +4358,21 @@ function renderMixin (Vue) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement);
     } catch (e) {
-      handleError(e, vm, "render function");
+      handleError(e, vm, "render");
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode;
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       } else {
         vnode = vm._vnode;
       }
@@ -4223,25 +4392,6 @@ function renderMixin (Vue) {
     vnode.parent = _parentVnode;
     return vnode
   };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4257,7 +4407,7 @@ function initMixin (Vue) {
     var startTag, endTag;
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + (vm._uid);
+      startTag = "vue-perf-start:" + (vm._uid);
       endTag = "vue-perf-end:" + (vm._uid);
       mark(startTag);
     }
@@ -4298,7 +4448,7 @@ function initMixin (Vue) {
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false);
       mark(endTag);
-      measure(((vm._name) + " init"), startTag, endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
     }
 
     if (vm.$options.el) {
@@ -4564,8 +4714,6 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp, Array];
-
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4582,54 +4730,66 @@ function matches (pattern, name) {
   return false
 }
 
-function pruneCache (cache, current, filter) {
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
   for (var key in cache) {
     var cachedNode = cache[key];
     if (cachedNode) {
       var name = getComponentName(cachedNode.componentOptions);
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
+        pruneCacheEntry(cache, key, keys, _vnode);
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
   }
+  cache[key] = null;
+  remove(keys, key);
 }
 
+var patternTypes = [String, RegExp, Array];
+
 var KeepAlive = {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created: function created () {
     this.cache = Object.create(null);
+    this.keys = [];
   },
 
   destroyed: function destroyed () {
     var this$1 = this;
 
     for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
     }
   },
 
   watch: {
     include: function include (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
+      pruneCache(this, function (name) { return matches(val, name); });
     },
     exclude: function exclude (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
+      pruneCache(this, function (name) { return !matches(val, name); });
     }
   },
 
@@ -4645,16 +4805,29 @@ var KeepAlive = {
       )) {
         return vnode
       }
+
+      var ref = this;
+      var cache = ref.cache;
+      var keys = ref.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
         : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
       } else {
-        this.cache[key] = vnode;
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
       }
+
       vnode.data.keepAlive = true;
     }
     return vnode
@@ -4687,7 +4860,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
+    defineReactive: defineReactive
   };
 
   Vue.set = set;
@@ -4724,7 +4897,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.4';
+Vue$3.version = '2.5.0';
 
 /*  */
 
@@ -5134,13 +5307,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
+    function remove () {
+      if (--remove.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove$$1.listeners = listeners;
-    return remove$$1
+    remove.listeners = listeners;
+    return remove
   }
 
   function removeNode (el) {
@@ -5169,7 +5342,14 @@ function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(function (ignore) {
+              return isRegExp(ignore)
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(
@@ -5312,16 +5492,21 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
       }
-      ancestor = ancestor.parent;
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5400,7 +5585,7 @@ function createPatchFunction (backend) {
     var newEndIdx = newCh.length - 1;
     var newStartVnode = newCh[0];
     var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -5438,18 +5623,18 @@ function createPatchFunction (backend) {
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
-          elmToMove = oldCh[idxInOld];
+          vnodeToMove = oldCh[idxInOld];
           /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !elmToMove) {
+          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             );
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
@@ -5730,6 +5915,8 @@ function createPatchFunction (backend) {
                   insert.fns[i$2]();
                 }
               }
+            } else {
+              registerRef(ancestor);
             }
             ancestor = ancestor.parent;
           }
@@ -5893,8 +6080,9 @@ function updateAttrs (oldVnode, vnode) {
     }
   }
   // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6184,7 +6372,15 @@ function getBindingAttr (
   }
 }
 
-function getAndRemoveAttr (el, name) {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
   var val;
   if ((val = el.attrsMap[name]) != null) {
     var list = el.attrsList;
@@ -6195,6 +6391,9 @@ function getAndRemoveAttr (el, name) {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
   return val
 }
 
@@ -6239,25 +6438,26 @@ function genAssignmentCode (
   value,
   assignment
 ) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
+  var res = parseModel(value);
+  if (res.key === null) {
     return (value + "=" + assignment)
   } else {
-    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
   }
 }
 
 /**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
  *
- * for loop possible cases:
+ * Possible cases:
  *
  * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
  *
  */
 
@@ -6268,18 +6468,29 @@ var index$1;
 var expressionPos;
 var expressionEndPos;
 
+
+
 function parseModel (val) {
-  str = val;
-  len = str.length;
-  index$1 = expressionPos = expressionEndPos = 0;
+  len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
     }
   }
 
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
   while (!eof()) {
     chr = next();
     /* istanbul ignore if */
@@ -6291,8 +6502,8 @@ function parseModel (val) {
   }
 
   return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
   }
 }
 
@@ -6343,7 +6554,6 @@ var warn$1;
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
 
 function model (
   el,
@@ -6357,13 +6567,6 @@ function model (
   var type = el.attrsMap.type;
 
   if (process.env.NODE_ENV !== 'production') {
-    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (tag === 'input' && dynamicType) {
-      warn$1(
-        "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
-        "v-model does not support dynamic input types. Use v-if branches instead."
-      );
-    }
     // inputs with type="file" are read only and setting the input's
     // value will throw an error.
     if (tag === 'input' && type === 'file') {
@@ -6420,7 +6623,7 @@ function genCheckboxModel (
           : (":_q(" + value + "," + trueValueBinding + ")")
       )
   );
-  addHandler(el, CHECKBOX_RADIO_TOKEN,
+  addHandler(el, 'change',
     "var $$a=" + value + "," +
         '$$el=$event.target,' +
         "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
@@ -6443,7 +6646,7 @@ function genRadioModel (
   var valueBinding = getBindingAttr(el, 'value') || 'null';
   valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
   addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
 }
 
 function genSelect (
@@ -6507,20 +6710,13 @@ function genDefaultModel (
 // the whole point is ensuring the v-model callback gets called before
 // user-attached handlers.
 function normalizeEvents (on) {
-  var event;
   /* istanbul ignore if */
   if (isDef(on[RANGE_TOKEN])) {
     // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input';
+    var event = isIE ? 'change' : 'input';
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change';
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
 }
 
 var target$1;
@@ -6606,6 +6802,11 @@ function updateDOMProps (oldVnode, vnode) {
     if (key === 'textContent' || key === 'innerHTML') {
       if (vnode.children) { vnode.children.length = 0; }
       if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
     }
 
     if (key === 'value') {
@@ -6614,7 +6815,7 @@ function updateDOMProps (oldVnode, vnode) {
       elm._value = cur;
       // avoid resetting cursor position when value is the same
       var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, vnode, strCur)) {
+      if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
     } else {
@@ -6626,13 +6827,9 @@ function updateDOMProps (oldVnode, vnode) {
 // check platforms/web/util/attrs.js acceptValue
 
 
-function shouldUpdateValue (
-  elm,
-  vnode,
-  checkVal
-) {
+function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
-    vnode.tag === 'option' ||
+    elm.tagName === 'OPTION' ||
     isDirty(elm, checkVal) ||
     isInputChanged(elm, checkVal)
   ))
@@ -6887,20 +7084,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def$$1) {
-  if (!def$$1) {
+function resolveTransition (def) {
+  if (!def) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
+  if (typeof def === 'object') {
     var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
     }
-    extend(res, def$$1);
+    extend(res, def);
     return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
   }
 }
 
@@ -6941,9 +7138,11 @@ if (hasTransition) {
 }
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout;
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
 
 function nextFrame (fn) {
   raf(function () {
@@ -7759,7 +7958,7 @@ var Transition = {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
+      var oldData = oldChild.data.transition = extend({}, data);
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes
@@ -7876,9 +8075,6 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
-    var body = document.body;
-    var f = body.offsetHeight; // eslint-disable-line
-
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -7985,7 +8181,7 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-setTimeout(function () {
+Vue$3.nextTick(function () {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue$3);
@@ -8146,31 +8342,16 @@ var style$1 = {
   genData: genData$1
 };
 
-var modules$1 = [
-  klass$1,
-  style$1
-];
-
 /*  */
 
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
+var decoder;
 
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+var he = {
+  decode: function decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
   }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
 };
 
 /*  */
@@ -8196,33 +8377,6 @@ var isNonPhrasingTag = makeMap(
   'title,tr,track'
 );
 
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
-  }
-};
-
 /**
  * Not type-checking this file because it's mostly vendor code.
  */
@@ -8552,6 +8706,23 @@ var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
 
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
 /**
  * Convert HTML string to AST.
  */
@@ -8614,14 +8785,7 @@ function parse (
         attrs = guardIESVGBug(attrs);
       }
 
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
+      var element = createASTElement(tag, attrs, currentParent);
       if (ns) {
         element.ns = ns;
       }
@@ -8637,7 +8801,7 @@ function parse (
 
       // apply pre-transforms
       for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
+        element = preTransforms[i](element, options) || element;
       }
 
       if (!inVPre) {
@@ -8651,23 +8815,13 @@ function parse (
       }
       if (inVPre) {
         processRawAttrs(element);
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element);
         processIf(element);
         processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
+        // element-scope stuff
+        processElement(element, options);
       }
 
       function checkRootConstraints (el) {
@@ -8725,8 +8879,8 @@ function parse (
         endPre(element);
       }
       // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
       }
     },
 
@@ -8820,6 +8974,22 @@ function processRawAttrs (el) {
   }
 }
 
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
@@ -8939,14 +9109,31 @@ function processSlot (el) {
       );
     }
   } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && slotScope) {
+        warn$2(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget);
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
     }
   }
 }
@@ -9120,6 +9307,116 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      var typeBinding = getBindingAttr(el, 'type');
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "type==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+var model$2 = {
+  preTransformNode: preTransformNode
+};
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$2
+];
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+var directives$1 = {
+  model: model,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
 var isStaticKey;
 var isPlatformReservedTag;
 
@@ -9334,6 +9631,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key);
         }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
       } else {
         keys.push(key);
       }
@@ -9363,8 +9668,13 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var alias = keyCodes[key];
-  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
 }
 
 /*  */
@@ -9602,7 +9912,8 @@ function genData$2 (el, state) {
     data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += "slot:" + (el.slotTarget) + ",";
   }
   // scoped slots
@@ -9660,7 +9971,7 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if (process.env.NODE_ENV !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.');
   }
@@ -9687,10 +9998,13 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+  var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
-      : genElement(el, state)) + "}}"
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
 }
 
 function genForScopedSlot (
@@ -9919,10 +10233,14 @@ function checkExpression (exp, text, errors) {
     if (keywordMatch) {
       errors.push(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
       );
     } else {
-      errors.push(("invalid expression: " + (text.trim())));
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
     }
   }
 }
@@ -9946,7 +10264,9 @@ function createCompileToFunctionFn (compile) {
     options,
     vm
   ) {
-    options = options || {};
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
 
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
@@ -9955,7 +10275,7 @@ function createCompileToFunctionFn (compile) {
         new Function('return 1');
       } catch (e) {
         if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn(
+          warn$$1(
             'It seems you are using the standalone build of Vue.js in an ' +
             'environment with Content Security Policy that prohibits unsafe-eval. ' +
             'The template compiler cannot work in this environment. Consider ' +
@@ -9980,7 +10300,7 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn(
+        warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
           compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
           vm
@@ -10005,7 +10325,7 @@ function createCompileToFunctionFn (compile) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn(
+        warn$$1(
           "Failed to generate render function:\n\n" +
           fnGenErrors.map(function (ref) {
             var err = ref.err;
@@ -10166,7 +10486,7 @@ Vue$3.prototype.$mount = function (
       /* istanbul ignore if */
       if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
         mark('compile end');
-        measure(((this._name) + " compile"), 'compile', 'compile end');
+        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
       }
     }
   }
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 0306cc9d4a0..6525b95628a 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -43,8 +43,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -61,7 +68,7 @@ function isRegExp (v) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -111,7 +118,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -321,7 +328,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -458,7 +466,8 @@ function parsePath (path) {
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -489,15 +498,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -519,7 +526,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -552,23 +559,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -646,45 +680,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -707,6 +736,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -716,7 +746,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -791,6 +821,101 @@ function popTarget () {
   Dep.target = targetStack.pop();
 }
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -876,7 +1001,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -919,7 +1044,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -943,7 +1068,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1026,7 +1151,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1209,11 +1334,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1226,22 +1359,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1254,7 +1395,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1291,7 +1440,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1315,6 +1464,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if (process.env.NODE_ENV !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1322,13 +1477,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
     }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if (process.env.NODE_ENV !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1347,6 +1515,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1364,8 +1542,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1529,9 +1707,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -1635,8 +1813,10 @@ if (process.env.NODE_ENV !== 'production') {
   var warnNonPresent = function (target, key) {
     warn(
       "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     );
   };
@@ -1646,7 +1826,7 @@ if (process.env.NODE_ENV !== 'production') {
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -1696,99 +1876,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode, deep) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
-/*  */
-
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -1796,10 +1883,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1825,11 +1910,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -1838,13 +1918,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1854,20 +1931,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2017,20 +2086,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -2038,7 +2114,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -2057,7 +2133,10 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -2215,8 +2294,8 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -2519,6 +2598,10 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
   };
 }
 
@@ -2562,12 +2645,12 @@ function mountComponent (
       mark(startTag);
       var vnode = vm._render();
       mark(endTag);
-      measure((name + " render"), startTag, endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
       mark(startTag);
       vm._update(vnode, hydrating);
       mark(endTag);
-      measure((name + " patch"), startTag, endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
     };
   } else {
     updateComponent = function () {
@@ -3127,16 +3210,6 @@ function initState (vm) {
   }
 }
 
-function checkOptionType (vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn(
-      ("component option \"" + name + "\" should be an object."),
-      vm
-    );
-  }
-}
-
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
   var props = vm._props = {};
@@ -3151,13 +3224,15 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     if (process.env.NODE_ENV !== 'production') {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
-      defineReactive$$1(props, key, value, function () {
+      defineReactive(props, key, value, function () {
         if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
@@ -3169,7 +3244,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive$$1(props, key, value);
+      defineReactive(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3227,7 +3302,7 @@ function initData (vm) {
 
 function getData (data, vm) {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
@@ -3237,7 +3312,6 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3326,7 +3400,6 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
@@ -3355,7 +3428,6 @@ function initMethods (vm, methods) {
 }
 
 function initWatch (vm, watch) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3449,7 +3521,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
+        defineReactive(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3458,7 +3530,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive$$1(vm, key, result[key]);
+        defineReactive(vm, key, result[key]);
       }
     });
     observerState.shouldConvert = true;
@@ -3478,7 +3550,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3487,8 +3559,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -3497,15 +3576,327 @@ function resolveInject (inject, vm) {
 
 /*  */
 
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && process.env.NODE_ENV !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
+      );
+      slotNodes._rendered = true;
+    }
+    return slotNodes || fallback
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
+    }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
 function createFunctionalComponent (
   Ctor,
   propsData,
   data,
-  context,
+  contextVm,
   children
 ) {
+  var options = Ctor.options;
   var props = {};
-  var propOptions = Ctor.options.props;
+  var propOptions = options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
       props[key] = validateProp(key, propOptions, propsData || emptyObject);
@@ -3514,26 +3905,25 @@ function createFunctionalComponent (
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
     if (isDef(data.props)) { mergeProps(props, data.props); }
   }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
   if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
   }
+
   return vnode
 }
 
@@ -3842,294 +4232,67 @@ function _createElement (
   if (normalizationType === ALWAYS_NORMALIZE) {
     children = normalizeChildren(children);
   } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias
-) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
-  }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
   } else {
-    markStaticNode(tree, key, isOnce);
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) { applyNS(vnode, ns); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
-  return data
 }
 
 /*  */
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
   vm.$scopedSlots = emptyObject;
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -4146,19 +4309,22 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
 function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
   Vue.prototype.$nextTick = function (fn) {
     return nextTick(fn, this)
   };
@@ -4167,7 +4333,6 @@ function renderMixin (Vue) {
     var vm = this;
     var ref = vm.$options;
     var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
@@ -4183,9 +4348,6 @@ function renderMixin (Vue) {
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode;
@@ -4194,14 +4356,21 @@ function renderMixin (Vue) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement);
     } catch (e) {
-      handleError(e, vm, "render function");
+      handleError(e, vm, "render");
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode;
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       } else {
         vnode = vm._vnode;
       }
@@ -4221,25 +4390,6 @@ function renderMixin (Vue) {
     vnode.parent = _parentVnode;
     return vnode
   };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4255,7 +4405,7 @@ function initMixin (Vue) {
     var startTag, endTag;
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + (vm._uid);
+      startTag = "vue-perf-start:" + (vm._uid);
       endTag = "vue-perf-end:" + (vm._uid);
       mark(startTag);
     }
@@ -4296,7 +4446,7 @@ function initMixin (Vue) {
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false);
       mark(endTag);
-      measure(((vm._name) + " init"), startTag, endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
     }
 
     if (vm.$options.el) {
@@ -4562,8 +4712,6 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp, Array];
-
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4580,54 +4728,66 @@ function matches (pattern, name) {
   return false
 }
 
-function pruneCache (cache, current, filter) {
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
   for (var key in cache) {
     var cachedNode = cache[key];
     if (cachedNode) {
       var name = getComponentName(cachedNode.componentOptions);
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
+        pruneCacheEntry(cache, key, keys, _vnode);
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
   }
+  cache[key] = null;
+  remove(keys, key);
 }
 
+var patternTypes = [String, RegExp, Array];
+
 var KeepAlive = {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created: function created () {
     this.cache = Object.create(null);
+    this.keys = [];
   },
 
   destroyed: function destroyed () {
     var this$1 = this;
 
     for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
     }
   },
 
   watch: {
     include: function include (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
+      pruneCache(this, function (name) { return matches(val, name); });
     },
     exclude: function exclude (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
+      pruneCache(this, function (name) { return !matches(val, name); });
     }
   },
 
@@ -4643,16 +4803,29 @@ var KeepAlive = {
       )) {
         return vnode
       }
+
+      var ref = this;
+      var cache = ref.cache;
+      var keys = ref.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
         : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
       } else {
-        this.cache[key] = vnode;
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
       }
+
       vnode.data.keepAlive = true;
     }
     return vnode
@@ -4685,7 +4858,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
+    defineReactive: defineReactive
   };
 
   Vue.set = set;
@@ -4722,7 +4895,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.4';
+Vue$3.version = '2.5.0';
 
 /*  */
 
@@ -5132,13 +5305,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
+    function remove () {
+      if (--remove.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove$$1.listeners = listeners;
-    return remove$$1
+    remove.listeners = listeners;
+    return remove
   }
 
   function removeNode (el) {
@@ -5167,7 +5340,14 @@ function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(function (ignore) {
+              return isRegExp(ignore)
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(
@@ -5310,16 +5490,21 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
       }
-      ancestor = ancestor.parent;
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5398,7 +5583,7 @@ function createPatchFunction (backend) {
     var newEndIdx = newCh.length - 1;
     var newStartVnode = newCh[0];
     var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -5436,18 +5621,18 @@ function createPatchFunction (backend) {
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
-          elmToMove = oldCh[idxInOld];
+          vnodeToMove = oldCh[idxInOld];
           /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !elmToMove) {
+          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             );
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
@@ -5728,6 +5913,8 @@ function createPatchFunction (backend) {
                   insert.fns[i$2]();
                 }
               }
+            } else {
+              registerRef(ancestor);
             }
             ancestor = ancestor.parent;
           }
@@ -5891,8 +6078,9 @@ function updateAttrs (oldVnode, vnode) {
     }
   }
   // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6182,7 +6370,15 @@ function getBindingAttr (
   }
 }
 
-function getAndRemoveAttr (el, name) {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
   var val;
   if ((val = el.attrsMap[name]) != null) {
     var list = el.attrsList;
@@ -6193,6 +6389,9 @@ function getAndRemoveAttr (el, name) {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
   return val
 }
 
@@ -6237,25 +6436,26 @@ function genAssignmentCode (
   value,
   assignment
 ) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
+  var res = parseModel(value);
+  if (res.key === null) {
     return (value + "=" + assignment)
   } else {
-    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
   }
 }
 
 /**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
  *
- * for loop possible cases:
+ * Possible cases:
  *
  * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
  *
  */
 
@@ -6266,18 +6466,29 @@ var index$1;
 var expressionPos;
 var expressionEndPos;
 
+
+
 function parseModel (val) {
-  str = val;
-  len = str.length;
-  index$1 = expressionPos = expressionEndPos = 0;
+  len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
     }
   }
 
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
   while (!eof()) {
     chr = next();
     /* istanbul ignore if */
@@ -6289,8 +6500,8 @@ function parseModel (val) {
   }
 
   return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
   }
 }
 
@@ -6341,7 +6552,6 @@ var warn$1;
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
 
 function model (
   el,
@@ -6355,13 +6565,6 @@ function model (
   var type = el.attrsMap.type;
 
   if (process.env.NODE_ENV !== 'production') {
-    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (tag === 'input' && dynamicType) {
-      warn$1(
-        "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
-        "v-model does not support dynamic input types. Use v-if branches instead."
-      );
-    }
     // inputs with type="file" are read only and setting the input's
     // value will throw an error.
     if (tag === 'input' && type === 'file') {
@@ -6418,7 +6621,7 @@ function genCheckboxModel (
           : (":_q(" + value + "," + trueValueBinding + ")")
       )
   );
-  addHandler(el, CHECKBOX_RADIO_TOKEN,
+  addHandler(el, 'change',
     "var $$a=" + value + "," +
         '$$el=$event.target,' +
         "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
@@ -6441,7 +6644,7 @@ function genRadioModel (
   var valueBinding = getBindingAttr(el, 'value') || 'null';
   valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
   addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
 }
 
 function genSelect (
@@ -6505,20 +6708,13 @@ function genDefaultModel (
 // the whole point is ensuring the v-model callback gets called before
 // user-attached handlers.
 function normalizeEvents (on) {
-  var event;
   /* istanbul ignore if */
   if (isDef(on[RANGE_TOKEN])) {
     // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input';
+    var event = isIE ? 'change' : 'input';
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change';
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
 }
 
 var target$1;
@@ -6604,6 +6800,11 @@ function updateDOMProps (oldVnode, vnode) {
     if (key === 'textContent' || key === 'innerHTML') {
       if (vnode.children) { vnode.children.length = 0; }
       if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
     }
 
     if (key === 'value') {
@@ -6612,7 +6813,7 @@ function updateDOMProps (oldVnode, vnode) {
       elm._value = cur;
       // avoid resetting cursor position when value is the same
       var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, vnode, strCur)) {
+      if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
     } else {
@@ -6624,13 +6825,9 @@ function updateDOMProps (oldVnode, vnode) {
 // check platforms/web/util/attrs.js acceptValue
 
 
-function shouldUpdateValue (
-  elm,
-  vnode,
-  checkVal
-) {
+function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
-    vnode.tag === 'option' ||
+    elm.tagName === 'OPTION' ||
     isDirty(elm, checkVal) ||
     isInputChanged(elm, checkVal)
   ))
@@ -6885,20 +7082,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def$$1) {
-  if (!def$$1) {
+function resolveTransition (def) {
+  if (!def) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
+  if (typeof def === 'object') {
     var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
     }
-    extend(res, def$$1);
+    extend(res, def);
     return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
   }
 }
 
@@ -6939,9 +7136,11 @@ if (hasTransition) {
 }
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout;
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
 
 function nextFrame (fn) {
   raf(function () {
@@ -7757,7 +7956,7 @@ var Transition = {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
+      var oldData = oldChild.data.transition = extend({}, data);
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes
@@ -7874,9 +8073,6 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
-    var body = document.body;
-    var f = body.offsetHeight; // eslint-disable-line
-
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -7983,7 +8179,7 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-setTimeout(function () {
+Vue$3.nextTick(function () {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue$3);
@@ -8144,31 +8340,16 @@ var style$1 = {
   genData: genData$1
 };
 
-var modules$1 = [
-  klass$1,
-  style$1
-];
-
 /*  */
 
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
+var decoder;
 
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+var he = {
+  decode: function decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
   }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
 };
 
 /*  */
@@ -8194,33 +8375,6 @@ var isNonPhrasingTag = makeMap(
   'title,tr,track'
 );
 
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
-  }
-};
-
 /**
  * Not type-checking this file because it's mostly vendor code.
  */
@@ -8550,6 +8704,23 @@ var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
 
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
 /**
  * Convert HTML string to AST.
  */
@@ -8612,14 +8783,7 @@ function parse (
         attrs = guardIESVGBug(attrs);
       }
 
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
+      var element = createASTElement(tag, attrs, currentParent);
       if (ns) {
         element.ns = ns;
       }
@@ -8635,7 +8799,7 @@ function parse (
 
       // apply pre-transforms
       for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
+        element = preTransforms[i](element, options) || element;
       }
 
       if (!inVPre) {
@@ -8649,23 +8813,13 @@ function parse (
       }
       if (inVPre) {
         processRawAttrs(element);
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element);
         processIf(element);
         processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
+        // element-scope stuff
+        processElement(element, options);
       }
 
       function checkRootConstraints (el) {
@@ -8723,8 +8877,8 @@ function parse (
         endPre(element);
       }
       // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
       }
     },
 
@@ -8818,6 +8972,22 @@ function processRawAttrs (el) {
   }
 }
 
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
@@ -8937,14 +9107,31 @@ function processSlot (el) {
       );
     }
   } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && slotScope) {
+        warn$2(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget);
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
     }
   }
 }
@@ -9118,6 +9305,116 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      var typeBinding = getBindingAttr(el, 'type');
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "type==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+var model$2 = {
+  preTransformNode: preTransformNode
+};
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$2
+];
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+var directives$1 = {
+  model: model,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
 var isStaticKey;
 var isPlatformReservedTag;
 
@@ -9332,6 +9629,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key);
         }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
       } else {
         keys.push(key);
       }
@@ -9361,8 +9666,13 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var alias = keyCodes[key];
-  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
 }
 
 /*  */
@@ -9600,7 +9910,8 @@ function genData$2 (el, state) {
     data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += "slot:" + (el.slotTarget) + ",";
   }
   // scoped slots
@@ -9658,7 +9969,7 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if (process.env.NODE_ENV !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.');
   }
@@ -9685,10 +9996,13 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+  var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
-      : genElement(el, state)) + "}}"
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
 }
 
 function genForScopedSlot (
@@ -9917,10 +10231,14 @@ function checkExpression (exp, text, errors) {
     if (keywordMatch) {
       errors.push(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
       );
     } else {
-      errors.push(("invalid expression: " + (text.trim())));
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
     }
   }
 }
@@ -9944,7 +10262,9 @@ function createCompileToFunctionFn (compile) {
     options,
     vm
   ) {
-    options = options || {};
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
 
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
@@ -9953,7 +10273,7 @@ function createCompileToFunctionFn (compile) {
         new Function('return 1');
       } catch (e) {
         if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn(
+          warn$$1(
             'It seems you are using the standalone build of Vue.js in an ' +
             'environment with Content Security Policy that prohibits unsafe-eval. ' +
             'The template compiler cannot work in this environment. Consider ' +
@@ -9978,7 +10298,7 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn(
+        warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
           compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
           vm
@@ -10003,7 +10323,7 @@ function createCompileToFunctionFn (compile) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn(
+        warn$$1(
           "Failed to generate render function:\n\n" +
           fnGenErrors.map(function (ref) {
             var err = ref.err;
@@ -10164,7 +10484,7 @@ Vue$3.prototype.$mount = function (
       /* istanbul ignore if */
       if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
         mark('compile end');
-        measure(((this._name) + " compile"), 'compile', 'compile end');
+        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
       }
     }
   }
diff --git a/dist/vue.js b/dist/vue.js
index 0b3bb9c3045..0b4d59d2876 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -49,8 +49,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -67,7 +74,7 @@ function isRegExp (v) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -117,7 +124,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -327,7 +334,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -464,7 +472,8 @@ function parsePath (path) {
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 {
   var hasConsole = typeof console !== 'undefined';
@@ -495,15 +504,13 @@ var formatComponentName = (null); // work around flow check
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -525,7 +532,7 @@ var formatComponentName = (null); // work around flow check
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -558,23 +565,50 @@ var formatComponentName = (null); // work around flow check
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -652,45 +686,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -713,6 +742,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -722,7 +752,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -797,6 +827,101 @@ function popTarget () {
   Dep.target = targetStack.pop();
 }
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -882,7 +1007,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -925,7 +1050,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -949,7 +1074,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1032,7 +1157,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1215,11 +1340,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    "development" !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1232,22 +1365,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1260,7 +1401,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1297,7 +1446,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1321,6 +1470,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if ("development" !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1328,13 +1483,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
     }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if ("development" !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1353,6 +1521,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1370,8 +1548,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1535,9 +1713,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -1641,8 +1819,10 @@ var initProxy;
   var warnNonPresent = function (target, key) {
     warn(
       "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     );
   };
@@ -1652,7 +1832,7 @@ var initProxy;
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -1702,99 +1882,6 @@ var initProxy;
 
 /*  */
 
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode, deep) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
-/*  */
-
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -1802,10 +1889,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1831,11 +1916,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -1844,13 +1924,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1860,20 +1937,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2023,20 +2092,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -2044,7 +2120,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -2063,7 +2139,10 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -2219,8 +2298,8 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -2523,6 +2602,10 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
   };
 }
 
@@ -2566,12 +2649,12 @@ function mountComponent (
       mark(startTag);
       var vnode = vm._render();
       mark(endTag);
-      measure((name + " render"), startTag, endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
       mark(startTag);
       vm._update(vnode, hydrating);
       mark(endTag);
-      measure((name + " patch"), startTag, endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
     };
   } else {
     updateComponent = function () {
@@ -3129,16 +3212,6 @@ function initState (vm) {
   }
 }
 
-function checkOptionType (vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn(
-      ("component option \"" + name + "\" should be an object."),
-      vm
-    );
-  }
-}
-
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
   var props = vm._props = {};
@@ -3153,13 +3226,15 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
-      defineReactive$$1(props, key, value, function () {
+      defineReactive(props, key, value, function () {
         if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
@@ -3227,7 +3302,7 @@ function initData (vm) {
 
 function getData (data, vm) {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
@@ -3237,7 +3312,6 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
-  "development" !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3326,7 +3400,6 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
-  "development" !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
     {
@@ -3355,7 +3428,6 @@ function initMethods (vm, methods) {
 }
 
 function initWatch (vm, watch) {
-  "development" !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3449,7 +3521,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       {
-        defineReactive$$1(vm, key, result[key], function () {
+        defineReactive(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3476,7 +3548,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3485,8 +3557,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if ("development" !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -3495,15 +3574,327 @@ function resolveInject (inject, vm) {
 
 /*  */
 
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if ("development" !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && "development" !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
+      );
+      slotNodes._rendered = true;
+    }
+    return slotNodes || fallback
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
+    }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      "development" !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      "development" !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
 function createFunctionalComponent (
   Ctor,
   propsData,
   data,
-  context,
+  contextVm,
   children
 ) {
+  var options = Ctor.options;
   var props = {};
-  var propOptions = Ctor.options.props;
+  var propOptions = options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
       props[key] = validateProp(key, propOptions, propsData || emptyObject);
@@ -3512,26 +3903,25 @@ function createFunctionalComponent (
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
     if (isDef(data.props)) { mergeProps(props, data.props); }
   }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
   if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
   }
+
   return vnode
 }
 
@@ -3841,293 +4231,66 @@ function _createElement (
     children = normalizeChildren(children);
   } else if (normalizationType === SIMPLE_NORMALIZE) {
     children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias
-) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      "development" !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
-  }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
   } else {
-    markStaticNode(tree, key, isOnce);
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) { applyNS(vnode, ns); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      "development" !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
-  return data
 }
 
 /*  */
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
   vm.$scopedSlots = emptyObject;
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -4144,16 +4307,19 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   }
 }
 
 function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
   Vue.prototype.$nextTick = function (fn) {
     return nextTick(fn, this)
   };
@@ -4162,7 +4328,6 @@ function renderMixin (Vue) {
     var vm = this;
     var ref = vm.$options;
     var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
@@ -4178,9 +4343,6 @@ function renderMixin (Vue) {
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode;
@@ -4189,14 +4351,21 @@ function renderMixin (Vue) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement);
     } catch (e) {
-      handleError(e, vm, "render function");
+      handleError(e, vm, "render");
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode;
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       }
     }
     // return empty vnode in case the render function errored out
@@ -4214,25 +4383,6 @@ function renderMixin (Vue) {
     vnode.parent = _parentVnode;
     return vnode
   };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4248,7 +4398,7 @@ function initMixin (Vue) {
     var startTag, endTag;
     /* istanbul ignore if */
     if ("development" !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + (vm._uid);
+      startTag = "vue-perf-start:" + (vm._uid);
       endTag = "vue-perf-end:" + (vm._uid);
       mark(startTag);
     }
@@ -4287,7 +4437,7 @@ function initMixin (Vue) {
     if ("development" !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false);
       mark(endTag);
-      measure(((vm._name) + " init"), startTag, endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
     }
 
     if (vm.$options.el) {
@@ -4553,8 +4703,6 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp, Array];
-
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4571,54 +4719,66 @@ function matches (pattern, name) {
   return false
 }
 
-function pruneCache (cache, current, filter) {
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
   for (var key in cache) {
     var cachedNode = cache[key];
     if (cachedNode) {
       var name = getComponentName(cachedNode.componentOptions);
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
+        pruneCacheEntry(cache, key, keys, _vnode);
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
   }
+  cache[key] = null;
+  remove(keys, key);
 }
 
+var patternTypes = [String, RegExp, Array];
+
 var KeepAlive = {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created: function created () {
     this.cache = Object.create(null);
+    this.keys = [];
   },
 
   destroyed: function destroyed () {
     var this$1 = this;
 
     for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
     }
   },
 
   watch: {
     include: function include (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
+      pruneCache(this, function (name) { return matches(val, name); });
     },
     exclude: function exclude (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
+      pruneCache(this, function (name) { return !matches(val, name); });
     }
   },
 
@@ -4634,16 +4794,29 @@ var KeepAlive = {
       )) {
         return vnode
       }
+
+      var ref = this;
+      var cache = ref.cache;
+      var keys = ref.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
         : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
       } else {
-        this.cache[key] = vnode;
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
       }
+
       vnode.data.keepAlive = true;
     }
     return vnode
@@ -4676,7 +4849,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
+    defineReactive: defineReactive
   };
 
   Vue.set = set;
@@ -4713,7 +4886,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.4';
+Vue$3.version = '2.5.0';
 
 /*  */
 
@@ -5123,13 +5296,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
+    function remove () {
+      if (--remove.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove$$1.listeners = listeners;
-    return remove$$1
+    remove.listeners = listeners;
+    return remove
   }
 
   function removeNode (el) {
@@ -5158,7 +5331,14 @@ function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(function (ignore) {
+              return isRegExp(ignore)
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(
@@ -5301,16 +5481,21 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
       }
-      ancestor = ancestor.parent;
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5389,7 +5574,7 @@ function createPatchFunction (backend) {
     var newEndIdx = newCh.length - 1;
     var newStartVnode = newCh[0];
     var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -5427,18 +5612,18 @@ function createPatchFunction (backend) {
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
-          elmToMove = oldCh[idxInOld];
+          vnodeToMove = oldCh[idxInOld];
           /* istanbul ignore if */
-          if ("development" !== 'production' && !elmToMove) {
+          if ("development" !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             );
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
@@ -5719,6 +5904,8 @@ function createPatchFunction (backend) {
                   insert.fns[i$2]();
                 }
               }
+            } else {
+              registerRef(ancestor);
             }
             ancestor = ancestor.parent;
           }
@@ -5882,8 +6069,9 @@ function updateAttrs (oldVnode, vnode) {
     }
   }
   // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6173,7 +6361,15 @@ function getBindingAttr (
   }
 }
 
-function getAndRemoveAttr (el, name) {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
   var val;
   if ((val = el.attrsMap[name]) != null) {
     var list = el.attrsList;
@@ -6184,6 +6380,9 @@ function getAndRemoveAttr (el, name) {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
   return val
 }
 
@@ -6228,25 +6427,26 @@ function genAssignmentCode (
   value,
   assignment
 ) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
+  var res = parseModel(value);
+  if (res.key === null) {
     return (value + "=" + assignment)
   } else {
-    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
   }
 }
 
 /**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
  *
- * for loop possible cases:
+ * Possible cases:
  *
  * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
  *
  */
 
@@ -6257,18 +6457,29 @@ var index$1;
 var expressionPos;
 var expressionEndPos;
 
+
+
 function parseModel (val) {
-  str = val;
-  len = str.length;
-  index$1 = expressionPos = expressionEndPos = 0;
+  len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
     }
   }
 
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
   while (!eof()) {
     chr = next();
     /* istanbul ignore if */
@@ -6280,8 +6491,8 @@ function parseModel (val) {
   }
 
   return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
   }
 }
 
@@ -6332,7 +6543,6 @@ var warn$1;
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
 
 function model (
   el,
@@ -6346,13 +6556,6 @@ function model (
   var type = el.attrsMap.type;
 
   {
-    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (tag === 'input' && dynamicType) {
-      warn$1(
-        "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
-        "v-model does not support dynamic input types. Use v-if branches instead."
-      );
-    }
     // inputs with type="file" are read only and setting the input's
     // value will throw an error.
     if (tag === 'input' && type === 'file') {
@@ -6409,7 +6612,7 @@ function genCheckboxModel (
           : (":_q(" + value + "," + trueValueBinding + ")")
       )
   );
-  addHandler(el, CHECKBOX_RADIO_TOKEN,
+  addHandler(el, 'change',
     "var $$a=" + value + "," +
         '$$el=$event.target,' +
         "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
@@ -6432,7 +6635,7 @@ function genRadioModel (
   var valueBinding = getBindingAttr(el, 'value') || 'null';
   valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
   addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
 }
 
 function genSelect (
@@ -6496,20 +6699,13 @@ function genDefaultModel (
 // the whole point is ensuring the v-model callback gets called before
 // user-attached handlers.
 function normalizeEvents (on) {
-  var event;
   /* istanbul ignore if */
   if (isDef(on[RANGE_TOKEN])) {
     // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input';
+    var event = isIE ? 'change' : 'input';
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change';
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
 }
 
 var target$1;
@@ -6595,6 +6791,11 @@ function updateDOMProps (oldVnode, vnode) {
     if (key === 'textContent' || key === 'innerHTML') {
       if (vnode.children) { vnode.children.length = 0; }
       if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
     }
 
     if (key === 'value') {
@@ -6603,7 +6804,7 @@ function updateDOMProps (oldVnode, vnode) {
       elm._value = cur;
       // avoid resetting cursor position when value is the same
       var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, vnode, strCur)) {
+      if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
     } else {
@@ -6615,13 +6816,9 @@ function updateDOMProps (oldVnode, vnode) {
 // check platforms/web/util/attrs.js acceptValue
 
 
-function shouldUpdateValue (
-  elm,
-  vnode,
-  checkVal
-) {
+function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
-    vnode.tag === 'option' ||
+    elm.tagName === 'OPTION' ||
     isDirty(elm, checkVal) ||
     isInputChanged(elm, checkVal)
   ))
@@ -6876,20 +7073,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def$$1) {
-  if (!def$$1) {
+function resolveTransition (def) {
+  if (!def) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
+  if (typeof def === 'object') {
     var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
     }
-    extend(res, def$$1);
+    extend(res, def);
     return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
   }
 }
 
@@ -6930,9 +7127,11 @@ if (hasTransition) {
 }
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout;
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
 
 function nextFrame (fn) {
   raf(function () {
@@ -7748,7 +7947,7 @@ var Transition = {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
+      var oldData = oldChild.data.transition = extend({}, data);
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes
@@ -7865,9 +8064,6 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
-    var body = document.body;
-    var f = body.offsetHeight; // eslint-disable-line
-
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -7974,7 +8170,7 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-setTimeout(function () {
+Vue$3.nextTick(function () {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue$3);
@@ -8135,31 +8331,16 @@ var style$1 = {
   genData: genData$1
 };
 
-var modules$1 = [
-  klass$1,
-  style$1
-];
-
 /*  */
 
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
+var decoder;
 
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+var he = {
+  decode: function decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
   }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
 };
 
 /*  */
@@ -8185,33 +8366,6 @@ var isNonPhrasingTag = makeMap(
   'title,tr,track'
 );
 
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
-  }
-};
-
 /**
  * Not type-checking this file because it's mostly vendor code.
  */
@@ -8541,6 +8695,23 @@ var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
 
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
 /**
  * Convert HTML string to AST.
  */
@@ -8603,14 +8774,7 @@ function parse (
         attrs = guardIESVGBug(attrs);
       }
 
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
+      var element = createASTElement(tag, attrs, currentParent);
       if (ns) {
         element.ns = ns;
       }
@@ -8626,7 +8790,7 @@ function parse (
 
       // apply pre-transforms
       for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
+        element = preTransforms[i](element, options) || element;
       }
 
       if (!inVPre) {
@@ -8640,23 +8804,13 @@ function parse (
       }
       if (inVPre) {
         processRawAttrs(element);
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element);
         processIf(element);
         processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
+        // element-scope stuff
+        processElement(element, options);
       }
 
       function checkRootConstraints (el) {
@@ -8714,8 +8868,8 @@ function parse (
         endPre(element);
       }
       // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
       }
     },
 
@@ -8809,6 +8963,22 @@ function processRawAttrs (el) {
   }
 }
 
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
@@ -8928,14 +9098,31 @@ function processSlot (el) {
       );
     }
   } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if ("development" !== 'production' && slotScope) {
+        warn$2(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget);
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
     }
   }
 }
@@ -9109,6 +9296,116 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      var typeBinding = getBindingAttr(el, 'type');
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "type==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+var model$2 = {
+  preTransformNode: preTransformNode
+};
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$2
+];
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+var directives$1 = {
+  model: model,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
 var isStaticKey;
 var isPlatformReservedTag;
 
@@ -9323,6 +9620,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key);
         }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
       } else {
         keys.push(key);
       }
@@ -9352,8 +9657,13 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var alias = keyCodes[key];
-  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
 }
 
 /*  */
@@ -9591,7 +9901,8 @@ function genData$2 (el, state) {
     data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += "slot:" + (el.slotTarget) + ",";
   }
   // scoped slots
@@ -9649,7 +9960,7 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if ("development" !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.');
   }
@@ -9676,10 +9987,13 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+  var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
-      : genElement(el, state)) + "}}"
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
 }
 
 function genForScopedSlot (
@@ -9908,10 +10222,14 @@ function checkExpression (exp, text, errors) {
     if (keywordMatch) {
       errors.push(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
       );
     } else {
-      errors.push(("invalid expression: " + (text.trim())));
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
     }
   }
 }
@@ -9935,7 +10253,9 @@ function createCompileToFunctionFn (compile) {
     options,
     vm
   ) {
-    options = options || {};
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
 
     /* istanbul ignore if */
     {
@@ -9944,7 +10264,7 @@ function createCompileToFunctionFn (compile) {
         new Function('return 1');
       } catch (e) {
         if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn(
+          warn$$1(
             'It seems you are using the standalone build of Vue.js in an ' +
             'environment with Content Security Policy that prohibits unsafe-eval. ' +
             'The template compiler cannot work in this environment. Consider ' +
@@ -9969,7 +10289,7 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     {
       if (compiled.errors && compiled.errors.length) {
-        warn(
+        warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
           compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
           vm
@@ -9994,7 +10314,7 @@ function createCompileToFunctionFn (compile) {
     /* istanbul ignore if */
     {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn(
+        warn$$1(
           "Failed to generate render function:\n\n" +
           fnGenErrors.map(function (ref) {
             var err = ref.err;
@@ -10155,7 +10475,7 @@ Vue$3.prototype.$mount = function (
       /* istanbul ignore if */
       if ("development" !== 'production' && config.performance && mark) {
         mark('compile end');
-        measure(((this._name) + " compile"), 'compile', 'compile end');
+        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
       }
     }
   }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 63ce8086ccf..e33b167f6c9 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function i(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function o(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===hi.call(t)}function s(t){return"[object RegExp]"===hi.call(t)}function c(t){var e=parseFloat(t);return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function p(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function d(t,e){return gi.call(t,e)}function v(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}function h(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n}function m(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function y(t,e){for(var n in e)t[n]=e[n];return t}function g(t){for(var e={},n=0;n<t.length;n++)t[n]&&y(e,t[n]);return e}function _(t,e,n){}function b(t,e){if(t===e)return!0;var n=o(t),r=o(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var i=Array.isArray(t),a=Array.isArray(e);if(i&&a)return t.length===e.length&&t.every(function(t,n){return b(t,e[n])});if(i||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return b(t[n],e[n])})}catch(t){return!1}}function $(t,e){for(var n=0;n<t.length;n++)if(b(t[n],e))return n;return-1}function C(t){var e=!1;return 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2")},zs={on:function(e,t){e.wrapListeners=function(e){return"_g("+e+","+t.value+")"}},bind:function(e,t){e.wrapData=function(n){return"_b("+n+",'"+e.tag+"',"+t.value+","+(t.modifiers&&t.modifiers.prop?"true":"false")+(t.modifiers&&t.modifiers.sync?",true":"")+")"}},cloak:_},Ks=function(e){this.options=e,this.warn=e.warn||on,this.transforms=an(e.modules,"transformCode"),this.dataGenFns=an(e.modules,"genData"),this.directives=y(y({},zs),e.directives);var t=e.isReservedTag||ji;this.maybeComponent=function(e){return!t(e.tag)},this.onceId=0,this.staticRenderFns=[]},Js=(new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b"),new RegExp("\\b"+"delete,typeof,void".split(",").join("\\s*\\([^\\)]*\\)|\\b")+"\\s*\\([^\\)]*\\)"),function(e){return function(t){function n(n,r){var i=Object.create(t),o=[],a=[];if(i.warn=function(e,t){(t?a:o).push(e)},r){r.modules&&(i.modules=(t.modules||[]).concat(r.modules)),r.directives&&(i.directives=y(Object.create(t.directives),r.directives));for(var s in r)"modules"!==s&&"directives"!==s&&(i[s]=r[s])}var c=e(n,i);return c.errors=o,c.tips=a,c}return{compile:n,compileToFunctions:bi(n)}}}(function(e,t){var n=gr(e.trim(),t);Br(n,t);var r=Zr(n,t);return{ast:n,render:r.render,staticRenderFns:r.staticRenderFns}})(Ds).compileToFunctions),qs=v(function(e){var t=Vt(e);return t&&t.innerHTML}),Ws=xt.prototype.$mount;return xt.prototype.$mount=function(e,t){if((e=e&&Vt(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=qs(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=$i(e));if(r){var i=Js(r,{shouldDecodeNewlines:Va,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return Ws.call(this,e,t)},xt.compile=Js,xt});
\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 68f1d59ff08..ef55c7b2d5e 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -45,8 +45,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -63,7 +70,7 @@ function isRegExp (v) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -113,7 +120,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -319,7 +326,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -456,7 +464,8 @@ function parsePath (path) {
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -487,15 +496,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -517,7 +524,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -550,23 +557,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -644,45 +678,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -705,6 +734,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -714,7 +744,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -789,6 +819,101 @@ function popTarget () {
   Dep.target = targetStack.pop();
 }
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -874,7 +999,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -917,7 +1042,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -941,7 +1066,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1024,7 +1149,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1207,11 +1332,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1224,22 +1357,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1252,7 +1393,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1289,7 +1438,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1313,6 +1462,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if (process.env.NODE_ENV !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1320,13 +1475,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
     }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if (process.env.NODE_ENV !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1345,6 +1513,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1362,8 +1540,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1527,9 +1705,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -1610,8 +1788,10 @@ if (process.env.NODE_ENV !== 'production') {
   var warnNonPresent = function (target, key) {
     warn(
       "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     );
   };
@@ -1621,7 +1801,7 @@ if (process.env.NODE_ENV !== 'production') {
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -1694,99 +1874,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode, deep) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
-/*  */
-
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -1794,10 +1881,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1823,11 +1908,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -1836,13 +1916,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1852,20 +1929,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2015,20 +2084,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -2036,7 +2112,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -2055,7 +2131,10 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -2213,8 +2292,8 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -2517,6 +2596,10 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
   };
 }
 
@@ -2560,12 +2643,12 @@ function mountComponent (
       mark(startTag);
       var vnode = vm._render();
       mark(endTag);
-      measure((name + " render"), startTag, endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
       mark(startTag);
       vm._update(vnode, hydrating);
       mark(endTag);
-      measure((name + " patch"), startTag, endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
     };
   } else {
     updateComponent = function () {
@@ -3125,16 +3208,6 @@ function initState (vm) {
   }
 }
 
-function checkOptionType (vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn(
-      ("component option \"" + name + "\" should be an object."),
-      vm
-    );
-  }
-}
-
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
   var props = vm._props = {};
@@ -3149,13 +3222,15 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     if (process.env.NODE_ENV !== 'production') {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
-      defineReactive$$1(props, key, value, function () {
+      defineReactive(props, key, value, function () {
         if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
@@ -3167,7 +3242,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive$$1(props, key, value);
+      defineReactive(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3225,7 +3300,7 @@ function initData (vm) {
 
 function getData (data, vm) {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
@@ -3235,7 +3310,6 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3324,7 +3398,6 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
@@ -3353,7 +3426,6 @@ function initMethods (vm, methods) {
 }
 
 function initWatch (vm, watch) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3447,7 +3519,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
+        defineReactive(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3456,7 +3528,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive$$1(vm, key, result[key]);
+        defineReactive(vm, key, result[key]);
       }
     });
     observerState.shouldConvert = true;
@@ -3476,7 +3548,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3485,8 +3557,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -3495,161 +3574,472 @@ function resolveInject (inject, vm) {
 
 /*  */
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  context,
-  children
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  var props = {};
-  var propOptions = Ctor.options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
-  if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
     }
   }
-  return vnode
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+  if (isDef(ret)) {
+    (ret)._isVList = true;
   }
+  return ret
 }
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance,
-        parentElm,
-        refElm
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && process.env.NODE_ENV !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
       );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      slotNodes._rendered = true;
     }
-  },
+    return slotNodes || fallback
+  }
+}
 
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+/*  */
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
     }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
   }
-};
+}
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
+/*  */
 
-function createComponent (
-  Ctor,
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
   data,
-  context,
-  children,
-  tag
+  tag,
+  value,
+  asProp,
+  isSync
 ) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
 
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
+      for (var key in value) loop( key );
     }
-    return
   }
+  return data
+}
 
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
+    if (data.slot) {
+      (vnode.data || (vnode.data = {})).slot = data.slot;
+    }
+  }
+
+  return vnode
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+// hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (
+    vnode,
+    hydrating,
+    parentElm,
+    refElm
+  ) {
+    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance,
+        parentElm,
+        refElm
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    } else if (vnode.data.keepAlive) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
         asyncFactory,
         data,
         context,
@@ -3721,413 +4111,186 @@ function createComponentInstanceForVnode (
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
-    _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnodeComponentOptions.Ctor(options)
-}
-
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
-  }
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias
-) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+    propsData: vnodeComponentOptions.propsData,
+    _componentTag: vnodeComponentOptions.tag,
+    _parentVnode: vnode,
+    _parentListeners: vnodeComponentOptions.listeners,
+    _renderChildren: vnodeComponentOptions.children,
+    _parentElm: parentElm || null,
+    _refElm: refElm || null
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnodeComponentOptions.Ctor(options)
+}
 
-      for (var key in value) loop( key );
-    }
+function mergeHooks (data) {
+  if (!data.hook) {
+    data.hook = {};
+  }
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var fromParent = data.hook[key];
+    var ours = componentVNodeHooks[key];
+    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
   }
-  return data
 }
 
-/*  */
+function mergeHook$1 (one, two) {
+  return function (a, b, c, d) {
+    one(a, b, c, d);
+    two(a, b, c, d);
+  }
+}
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  if (isDef(on[event])) {
+    on[event] = [data.model.callback].concat(on[event]);
+  } else {
+    on[event] = data.model.callback;
   }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, ("__static__" + index), false);
-  return tree
 }
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
 ) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
 }
 
-function markStatic (
-  tree,
-  key,
-  isOnce
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+  if (isDef(data) && isDef((data).__ob__)) {
+    process.env.NODE_ENV !== 'production' && warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (process.env.NODE_ENV !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    warn(
+      'Avoid using non-primitive value as key, ' +
+      'use string/number value instead.',
+      context
+    );
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
   } else {
-    markStaticNode(tree, key, isOnce);
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) { applyNS(vnode, ns); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
-  return data
 }
 
 /*  */
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
   vm.$scopedSlots = emptyObject;
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -4144,19 +4307,22 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
 function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
   Vue.prototype.$nextTick = function (fn) {
     return nextTick(fn, this)
   };
@@ -4165,7 +4331,6 @@ function renderMixin (Vue) {
     var vm = this;
     var ref = vm.$options;
     var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
@@ -4181,9 +4346,6 @@ function renderMixin (Vue) {
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode;
@@ -4192,14 +4354,21 @@ function renderMixin (Vue) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement);
     } catch (e) {
-      handleError(e, vm, "render function");
+      handleError(e, vm, "render");
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode;
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       } else {
         vnode = vm._vnode;
       }
@@ -4219,25 +4388,6 @@ function renderMixin (Vue) {
     vnode.parent = _parentVnode;
     return vnode
   };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4253,7 +4403,7 @@ function initMixin (Vue) {
     var startTag, endTag;
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + (vm._uid);
+      startTag = "vue-perf-start:" + (vm._uid);
       endTag = "vue-perf-end:" + (vm._uid);
       mark(startTag);
     }
@@ -4294,7 +4444,7 @@ function initMixin (Vue) {
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false);
       mark(endTag);
-      measure(((vm._name) + " init"), startTag, endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
     }
 
     if (vm.$options.el) {
@@ -4560,8 +4710,6 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp, Array];
-
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4578,54 +4726,66 @@ function matches (pattern, name) {
   return false
 }
 
-function pruneCache (cache, current, filter) {
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
   for (var key in cache) {
     var cachedNode = cache[key];
     if (cachedNode) {
       var name = getComponentName(cachedNode.componentOptions);
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
+        pruneCacheEntry(cache, key, keys, _vnode);
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
   }
+  cache[key] = null;
+  remove(keys, key);
 }
 
+var patternTypes = [String, RegExp, Array];
+
 var KeepAlive = {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created: function created () {
     this.cache = Object.create(null);
+    this.keys = [];
   },
 
   destroyed: function destroyed () {
     var this$1 = this;
 
     for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
     }
   },
 
   watch: {
     include: function include (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
+      pruneCache(this, function (name) { return matches(val, name); });
     },
     exclude: function exclude (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
+      pruneCache(this, function (name) { return !matches(val, name); });
     }
   },
 
@@ -4641,16 +4801,29 @@ var KeepAlive = {
       )) {
         return vnode
       }
+
+      var ref = this;
+      var cache = ref.cache;
+      var keys = ref.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
         : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
       } else {
-        this.cache[key] = vnode;
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
       }
+
       vnode.data.keepAlive = true;
     }
     return vnode
@@ -4683,7 +4856,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
+    defineReactive: defineReactive
   };
 
   Vue.set = set;
@@ -4720,7 +4893,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.4';
+Vue$3.version = '2.5.0';
 
 /*  */
 
@@ -5130,13 +5303,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
+    function remove () {
+      if (--remove.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove$$1.listeners = listeners;
-    return remove$$1
+    remove.listeners = listeners;
+    return remove
   }
 
   function removeNode (el) {
@@ -5165,7 +5338,14 @@ function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(function (ignore) {
+              return isRegExp(ignore)
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(
@@ -5308,16 +5488,21 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
       }
-      ancestor = ancestor.parent;
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5396,7 +5581,7 @@ function createPatchFunction (backend) {
     var newEndIdx = newCh.length - 1;
     var newStartVnode = newCh[0];
     var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -5434,18 +5619,18 @@ function createPatchFunction (backend) {
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
-          elmToMove = oldCh[idxInOld];
+          vnodeToMove = oldCh[idxInOld];
           /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !elmToMove) {
+          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             );
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
@@ -5726,6 +5911,8 @@ function createPatchFunction (backend) {
                   insert.fns[i$2]();
                 }
               }
+            } else {
+              registerRef(ancestor);
             }
             ancestor = ancestor.parent;
           }
@@ -5889,8 +6076,9 @@ function updateAttrs (oldVnode, vnode) {
     }
   }
   // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -5980,23 +6168,26 @@ var klass = {
 
 /*  */
 
-var validDivisionCharRE = /[\w).+\-_$\]]/;
+/*  */
+
+
+
+
+
+
+
+
 
 
 
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
-  }
-}
 
-/*  */
+
+
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
 
 /*  */
 
@@ -6009,30 +6200,11 @@ function wrapFilter (exp, filter) {
  * Cross-platform codegen helper for generating v-model value assignment code.
  */
 
-
-/**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
- *
- * for loop possible cases:
- *
- * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
- *
- */
-
-var str;
-var index$1;
-
 /*  */
 
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
 
 /*  */
 
@@ -6041,20 +6213,13 @@ var CHECKBOX_RADIO_TOKEN = '__c';
 // the whole point is ensuring the v-model callback gets called before
 // user-attached handlers.
 function normalizeEvents (on) {
-  var event;
   /* istanbul ignore if */
   if (isDef(on[RANGE_TOKEN])) {
     // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input';
+    var event = isIE ? 'change' : 'input';
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change';
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
 }
 
 var target$1;
@@ -6140,6 +6305,11 @@ function updateDOMProps (oldVnode, vnode) {
     if (key === 'textContent' || key === 'innerHTML') {
       if (vnode.children) { vnode.children.length = 0; }
       if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
     }
 
     if (key === 'value') {
@@ -6148,7 +6318,7 @@ function updateDOMProps (oldVnode, vnode) {
       elm._value = cur;
       // avoid resetting cursor position when value is the same
       var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, vnode, strCur)) {
+      if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
     } else {
@@ -6160,13 +6330,9 @@ function updateDOMProps (oldVnode, vnode) {
 // check platforms/web/util/attrs.js acceptValue
 
 
-function shouldUpdateValue (
-  elm,
-  vnode,
-  checkVal
-) {
+function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
-    vnode.tag === 'option' ||
+    elm.tagName === 'OPTION' ||
     isDirty(elm, checkVal) ||
     isInputChanged(elm, checkVal)
   ))
@@ -6421,20 +6587,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def$$1) {
-  if (!def$$1) {
+function resolveTransition (def) {
+  if (!def) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
+  if (typeof def === 'object') {
     var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
     }
-    extend(res, def$$1);
+    extend(res, def);
     return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
   }
 }
 
@@ -6475,9 +6641,11 @@ if (hasTransition) {
 }
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout;
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
 
 function nextFrame (fn) {
   raf(function () {
@@ -7293,7 +7461,7 @@ var Transition = {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
+      var oldData = oldChild.data.transition = extend({}, data);
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes
@@ -7410,9 +7578,6 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
-    var body = document.body;
-    var f = body.offsetHeight; // eslint-disable-line
-
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -7519,7 +7684,7 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-setTimeout(function () {
+Vue$3.nextTick(function () {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue$3);
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 7dcbfe91207..7e443c35624 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -43,8 +43,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -61,7 +68,7 @@ function isRegExp (v) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -111,7 +118,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -317,7 +324,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -454,7 +462,8 @@ function parsePath (path) {
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -485,15 +494,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -515,7 +522,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -548,23 +555,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -642,45 +676,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -703,6 +732,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -712,7 +742,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -787,6 +817,101 @@ function popTarget () {
   Dep.target = targetStack.pop();
 }
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -872,7 +997,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -915,7 +1040,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -939,7 +1064,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1022,7 +1147,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1205,11 +1330,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1222,22 +1355,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1250,7 +1391,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1287,7 +1436,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1311,6 +1460,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if (process.env.NODE_ENV !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1318,13 +1473,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
     }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if (process.env.NODE_ENV !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1343,6 +1511,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1360,8 +1538,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1525,9 +1703,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -1608,8 +1786,10 @@ if (process.env.NODE_ENV !== 'production') {
   var warnNonPresent = function (target, key) {
     warn(
       "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     );
   };
@@ -1619,7 +1799,7 @@ if (process.env.NODE_ENV !== 'production') {
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -1692,99 +1872,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode, deep) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
-/*  */
-
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -1792,10 +1879,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1821,11 +1906,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -1834,13 +1914,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1850,20 +1927,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2013,20 +2082,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -2034,7 +2110,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -2053,7 +2129,10 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -2211,8 +2290,8 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -2515,6 +2594,10 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
   };
 }
 
@@ -2558,12 +2641,12 @@ function mountComponent (
       mark(startTag);
       var vnode = vm._render();
       mark(endTag);
-      measure((name + " render"), startTag, endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
       mark(startTag);
       vm._update(vnode, hydrating);
       mark(endTag);
-      measure((name + " patch"), startTag, endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
     };
   } else {
     updateComponent = function () {
@@ -3123,16 +3206,6 @@ function initState (vm) {
   }
 }
 
-function checkOptionType (vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn(
-      ("component option \"" + name + "\" should be an object."),
-      vm
-    );
-  }
-}
-
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
   var props = vm._props = {};
@@ -3147,13 +3220,15 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     if (process.env.NODE_ENV !== 'production') {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
-      defineReactive$$1(props, key, value, function () {
+      defineReactive(props, key, value, function () {
         if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
@@ -3165,7 +3240,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive$$1(props, key, value);
+      defineReactive(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3223,7 +3298,7 @@ function initData (vm) {
 
 function getData (data, vm) {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
@@ -3233,7 +3308,6 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3322,7 +3396,6 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
@@ -3351,7 +3424,6 @@ function initMethods (vm, methods) {
 }
 
 function initWatch (vm, watch) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3445,7 +3517,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
+        defineReactive(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3454,7 +3526,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive$$1(vm, key, result[key]);
+        defineReactive(vm, key, result[key]);
       }
     });
     observerState.shouldConvert = true;
@@ -3474,7 +3546,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3483,8 +3555,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -3493,161 +3572,472 @@ function resolveInject (inject, vm) {
 
 /*  */
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  context,
-  children
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  var props = {};
-  var propOptions = Ctor.options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
-  if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
     }
   }
-  return vnode
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+  if (isDef(ret)) {
+    (ret)._isVList = true;
   }
+  return ret
 }
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance,
-        parentElm,
-        refElm
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && process.env.NODE_ENV !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
       );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      slotNodes._rendered = true;
     }
-  },
+    return slotNodes || fallback
+  }
+}
 
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+/*  */
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
     }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
   }
-};
+}
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
+/*  */
 
-function createComponent (
-  Ctor,
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
   data,
-  context,
-  children,
-  tag
+  tag,
+  value,
+  asProp,
+  isSync
 ) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
 
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
+      for (var key in value) loop( key );
     }
-    return
   }
+  return data
+}
 
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
+    if (data.slot) {
+      (vnode.data || (vnode.data = {})).slot = data.slot;
+    }
+  }
+
+  return vnode
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+// hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (
+    vnode,
+    hydrating,
+    parentElm,
+    refElm
+  ) {
+    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance,
+        parentElm,
+        refElm
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    } else if (vnode.data.keepAlive) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
         asyncFactory,
         data,
         context,
@@ -3719,413 +4109,186 @@ function createComponentInstanceForVnode (
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
-    _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnodeComponentOptions.Ctor(options)
-}
-
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
-  }
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias
-) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+    propsData: vnodeComponentOptions.propsData,
+    _componentTag: vnodeComponentOptions.tag,
+    _parentVnode: vnode,
+    _parentListeners: vnodeComponentOptions.listeners,
+    _renderChildren: vnodeComponentOptions.children,
+    _parentElm: parentElm || null,
+    _refElm: refElm || null
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnodeComponentOptions.Ctor(options)
+}
 
-      for (var key in value) loop( key );
-    }
+function mergeHooks (data) {
+  if (!data.hook) {
+    data.hook = {};
+  }
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var fromParent = data.hook[key];
+    var ours = componentVNodeHooks[key];
+    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
   }
-  return data
 }
 
-/*  */
+function mergeHook$1 (one, two) {
+  return function (a, b, c, d) {
+    one(a, b, c, d);
+    two(a, b, c, d);
+  }
+}
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  if (isDef(on[event])) {
+    on[event] = [data.model.callback].concat(on[event]);
+  } else {
+    on[event] = data.model.callback;
   }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, ("__static__" + index), false);
-  return tree
 }
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
 ) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
 }
 
-function markStatic (
-  tree,
-  key,
-  isOnce
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+  if (isDef(data) && isDef((data).__ob__)) {
+    process.env.NODE_ENV !== 'production' && warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (process.env.NODE_ENV !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    warn(
+      'Avoid using non-primitive value as key, ' +
+      'use string/number value instead.',
+      context
+    );
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
   } else {
-    markStaticNode(tree, key, isOnce);
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) { applyNS(vnode, ns); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
-  return data
 }
 
 /*  */
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
   vm.$scopedSlots = emptyObject;
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -4142,19 +4305,22 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, null, true);
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
 function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
   Vue.prototype.$nextTick = function (fn) {
     return nextTick(fn, this)
   };
@@ -4163,7 +4329,6 @@ function renderMixin (Vue) {
     var vm = this;
     var ref = vm.$options;
     var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
@@ -4179,9 +4344,6 @@ function renderMixin (Vue) {
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode;
@@ -4190,14 +4352,21 @@ function renderMixin (Vue) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement);
     } catch (e) {
-      handleError(e, vm, "render function");
+      handleError(e, vm, "render");
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode;
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       } else {
         vnode = vm._vnode;
       }
@@ -4217,25 +4386,6 @@ function renderMixin (Vue) {
     vnode.parent = _parentVnode;
     return vnode
   };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4251,7 +4401,7 @@ function initMixin (Vue) {
     var startTag, endTag;
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + (vm._uid);
+      startTag = "vue-perf-start:" + (vm._uid);
       endTag = "vue-perf-end:" + (vm._uid);
       mark(startTag);
     }
@@ -4292,7 +4442,7 @@ function initMixin (Vue) {
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false);
       mark(endTag);
-      measure(((vm._name) + " init"), startTag, endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
     }
 
     if (vm.$options.el) {
@@ -4558,8 +4708,6 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp, Array];
-
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4576,54 +4724,66 @@ function matches (pattern, name) {
   return false
 }
 
-function pruneCache (cache, current, filter) {
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
   for (var key in cache) {
     var cachedNode = cache[key];
     if (cachedNode) {
       var name = getComponentName(cachedNode.componentOptions);
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
+        pruneCacheEntry(cache, key, keys, _vnode);
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
   }
+  cache[key] = null;
+  remove(keys, key);
 }
 
+var patternTypes = [String, RegExp, Array];
+
 var KeepAlive = {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created: function created () {
     this.cache = Object.create(null);
+    this.keys = [];
   },
 
   destroyed: function destroyed () {
     var this$1 = this;
 
     for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
     }
   },
 
   watch: {
     include: function include (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
+      pruneCache(this, function (name) { return matches(val, name); });
     },
     exclude: function exclude (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
+      pruneCache(this, function (name) { return !matches(val, name); });
     }
   },
 
@@ -4639,16 +4799,29 @@ var KeepAlive = {
       )) {
         return vnode
       }
+
+      var ref = this;
+      var cache = ref.cache;
+      var keys = ref.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
         : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
       } else {
-        this.cache[key] = vnode;
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
       }
+
       vnode.data.keepAlive = true;
     }
     return vnode
@@ -4681,7 +4854,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
+    defineReactive: defineReactive
   };
 
   Vue.set = set;
@@ -4718,7 +4891,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.4';
+Vue$3.version = '2.5.0';
 
 /*  */
 
@@ -5128,13 +5301,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
+    function remove () {
+      if (--remove.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove$$1.listeners = listeners;
-    return remove$$1
+    remove.listeners = listeners;
+    return remove
   }
 
   function removeNode (el) {
@@ -5163,7 +5336,14 @@ function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(function (ignore) {
+              return isRegExp(ignore)
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(
@@ -5306,16 +5486,21 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
       }
-      ancestor = ancestor.parent;
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5394,7 +5579,7 @@ function createPatchFunction (backend) {
     var newEndIdx = newCh.length - 1;
     var newStartVnode = newCh[0];
     var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -5432,18 +5617,18 @@ function createPatchFunction (backend) {
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
-          elmToMove = oldCh[idxInOld];
+          vnodeToMove = oldCh[idxInOld];
           /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !elmToMove) {
+          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             );
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
@@ -5724,6 +5909,8 @@ function createPatchFunction (backend) {
                   insert.fns[i$2]();
                 }
               }
+            } else {
+              registerRef(ancestor);
             }
             ancestor = ancestor.parent;
           }
@@ -5887,8 +6074,9 @@ function updateAttrs (oldVnode, vnode) {
     }
   }
   // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -5978,23 +6166,26 @@ var klass = {
 
 /*  */
 
-var validDivisionCharRE = /[\w).+\-_$\]]/;
+/*  */
+
+
+
+
+
+
+
+
 
 
 
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
-  }
-}
 
-/*  */
+
+
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
 
 /*  */
 
@@ -6007,30 +6198,11 @@ function wrapFilter (exp, filter) {
  * Cross-platform codegen helper for generating v-model value assignment code.
  */
 
-
-/**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
- *
- * for loop possible cases:
- *
- * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
- *
- */
-
-var str;
-var index$1;
-
 /*  */
 
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
 
 /*  */
 
@@ -6039,20 +6211,13 @@ var CHECKBOX_RADIO_TOKEN = '__c';
 // the whole point is ensuring the v-model callback gets called before
 // user-attached handlers.
 function normalizeEvents (on) {
-  var event;
   /* istanbul ignore if */
   if (isDef(on[RANGE_TOKEN])) {
     // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input';
+    var event = isIE ? 'change' : 'input';
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change';
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
 }
 
 var target$1;
@@ -6138,6 +6303,11 @@ function updateDOMProps (oldVnode, vnode) {
     if (key === 'textContent' || key === 'innerHTML') {
       if (vnode.children) { vnode.children.length = 0; }
       if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
     }
 
     if (key === 'value') {
@@ -6146,7 +6316,7 @@ function updateDOMProps (oldVnode, vnode) {
       elm._value = cur;
       // avoid resetting cursor position when value is the same
       var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, vnode, strCur)) {
+      if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
     } else {
@@ -6158,13 +6328,9 @@ function updateDOMProps (oldVnode, vnode) {
 // check platforms/web/util/attrs.js acceptValue
 
 
-function shouldUpdateValue (
-  elm,
-  vnode,
-  checkVal
-) {
+function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
-    vnode.tag === 'option' ||
+    elm.tagName === 'OPTION' ||
     isDirty(elm, checkVal) ||
     isInputChanged(elm, checkVal)
   ))
@@ -6419,20 +6585,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def$$1) {
-  if (!def$$1) {
+function resolveTransition (def) {
+  if (!def) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
+  if (typeof def === 'object') {
     var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
     }
-    extend(res, def$$1);
+    extend(res, def);
     return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
   }
 }
 
@@ -6473,9 +6639,11 @@ if (hasTransition) {
 }
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout;
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
 
 function nextFrame (fn) {
   raf(function () {
@@ -7291,7 +7459,7 @@ var Transition = {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
+      var oldData = oldChild.data.transition = extend({}, data);
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes
@@ -7408,9 +7576,6 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
-    var body = document.body;
-    var f = body.offsetHeight; // eslint-disable-line
-
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -7517,7 +7682,7 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-setTimeout(function () {
+Vue$3.nextTick(function () {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue$3);
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index cf4eceaf20d..2d24ff0defb 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -49,8 +49,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -67,7 +74,7 @@ function isRegExp (v) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -117,7 +124,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -323,7 +330,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -460,7 +468,8 @@ function parsePath (path) {
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 {
   var hasConsole = typeof console !== 'undefined';
@@ -491,15 +500,13 @@ var formatComponentName = (null); // work around flow check
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -521,7 +528,7 @@ var formatComponentName = (null); // work around flow check
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -554,23 +561,50 @@ var formatComponentName = (null); // work around flow check
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -648,45 +682,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -709,6 +738,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -718,7 +748,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -793,6 +823,101 @@ function popTarget () {
   Dep.target = targetStack.pop();
 }
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -878,7 +1003,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -921,7 +1046,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -945,7 +1070,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1028,7 +1153,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1211,11 +1336,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    "development" !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1228,22 +1361,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1256,7 +1397,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1293,7 +1442,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1317,6 +1466,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if ("development" !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1324,13 +1479,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
     }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if ("development" !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1349,6 +1517,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1366,8 +1544,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1531,9 +1709,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -1614,8 +1792,10 @@ var initProxy;
   var warnNonPresent = function (target, key) {
     warn(
       "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     );
   };
@@ -1625,7 +1805,7 @@ var initProxy;
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -1698,99 +1878,6 @@ var measure;
 
 /*  */
 
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode, deep) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
-/*  */
-
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -1798,10 +1885,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -1827,11 +1912,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -1840,13 +1920,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1856,20 +1933,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -2019,20 +2088,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -2040,7 +2116,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -2059,7 +2135,10 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -2215,8 +2294,8 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -2519,6 +2598,10 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
   };
 }
 
@@ -2562,12 +2645,12 @@ function mountComponent (
       mark(startTag);
       var vnode = vm._render();
       mark(endTag);
-      measure((name + " render"), startTag, endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
       mark(startTag);
       vm._update(vnode, hydrating);
       mark(endTag);
-      measure((name + " patch"), startTag, endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
     };
   } else {
     updateComponent = function () {
@@ -3125,16 +3208,6 @@ function initState (vm) {
   }
 }
 
-function checkOptionType (vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn(
-      ("component option \"" + name + "\" should be an object."),
-      vm
-    );
-  }
-}
-
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
   var props = vm._props = {};
@@ -3149,13 +3222,15 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
-      defineReactive$$1(props, key, value, function () {
+      defineReactive(props, key, value, function () {
         if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
@@ -3223,7 +3298,7 @@ function initData (vm) {
 
 function getData (data, vm) {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
@@ -3233,7 +3308,6 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
-  "development" !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3322,7 +3396,6 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
-  "development" !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
     {
@@ -3351,7 +3424,6 @@ function initMethods (vm, methods) {
 }
 
 function initWatch (vm, watch) {
-  "development" !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3445,7 +3517,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       {
-        defineReactive$$1(vm, key, result[key], function () {
+        defineReactive(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3472,7 +3544,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3481,8 +3553,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if ("development" !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -3491,161 +3570,472 @@ function resolveInject (inject, vm) {
 
 /*  */
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  context,
-  children
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  var props = {};
-  var propOptions = Ctor.options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
-  if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
     }
   }
-  return vnode
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+  if (isDef(ret)) {
+    (ret)._isVList = true;
   }
+  return ret
 }
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance,
-        parentElm,
-        refElm
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if ("development" !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && "development" !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
       );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      slotNodes._rendered = true;
     }
-  },
+    return slotNodes || fallback
+  }
+}
 
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+/*  */
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
     }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
   }
-};
+}
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
+/*  */
 
-function createComponent (
-  Ctor,
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
   data,
-  context,
-  children,
-  tag
+  tag,
+  value,
+  asProp,
+  isSync
 ) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
+  if (value) {
+    if (!isObject(value)) {
+      "development" !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
 
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
+      for (var key in value) loop( key );
     }
-    return
   }
+  return data
+}
 
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      "development" !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
+    if (data.slot) {
+      (vnode.data || (vnode.data = {})).slot = data.slot;
+    }
+  }
+
+  return vnode
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+// hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (
+    vnode,
+    hydrating,
+    parentElm,
+    refElm
+  ) {
+    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance,
+        parentElm,
+        refElm
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    } else if (vnode.data.keepAlive) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
         asyncFactory,
         data,
         context,
@@ -3718,412 +4108,185 @@ function createComponentInstanceForVnode (
     _isComponent: true,
     parent: parent,
     propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
-    _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnodeComponentOptions.Ctor(options)
-}
-
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
-  }
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    "development" !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if ("development" !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias
-) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      "development" !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+    _componentTag: vnodeComponentOptions.tag,
+    _parentVnode: vnode,
+    _parentListeners: vnodeComponentOptions.listeners,
+    _renderChildren: vnodeComponentOptions.children,
+    _parentElm: parentElm || null,
+    _refElm: refElm || null
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnodeComponentOptions.Ctor(options)
+}
 
-      for (var key in value) loop( key );
-    }
+function mergeHooks (data) {
+  if (!data.hook) {
+    data.hook = {};
+  }
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var fromParent = data.hook[key];
+    var ours = componentVNodeHooks[key];
+    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
   }
-  return data
 }
 
-/*  */
+function mergeHook$1 (one, two) {
+  return function (a, b, c, d) {
+    one(a, b, c, d);
+    two(a, b, c, d);
+  }
+}
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  if (isDef(on[event])) {
+    on[event] = [data.model.callback].concat(on[event]);
+  } else {
+    on[event] = data.model.callback;
   }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, ("__static__" + index), false);
-  return tree
 }
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
 ) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
 }
 
-function markStatic (
-  tree,
-  key,
-  isOnce
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+  if (isDef(data) && isDef((data).__ob__)) {
+    "development" !== 'production' && warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if ("development" !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    warn(
+      'Avoid using non-primitive value as key, ' +
+      'use string/number value instead.',
+      context
+    );
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
   } else {
-    markStaticNode(tree, key, isOnce);
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) { applyNS(vnode, ns); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      "development" !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
-  return data
 }
 
 /*  */
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
   vm.$scopedSlots = emptyObject;
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -4140,16 +4303,19 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners || emptyObject, function () {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   }
 }
 
 function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
   Vue.prototype.$nextTick = function (fn) {
     return nextTick(fn, this)
   };
@@ -4158,7 +4324,6 @@ function renderMixin (Vue) {
     var vm = this;
     var ref = vm.$options;
     var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
@@ -4174,9 +4339,6 @@ function renderMixin (Vue) {
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode;
@@ -4185,14 +4347,21 @@ function renderMixin (Vue) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement);
     } catch (e) {
-      handleError(e, vm, "render function");
+      handleError(e, vm, "render");
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode;
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       }
     }
     // return empty vnode in case the render function errored out
@@ -4210,25 +4379,6 @@ function renderMixin (Vue) {
     vnode.parent = _parentVnode;
     return vnode
   };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4244,7 +4394,7 @@ function initMixin (Vue) {
     var startTag, endTag;
     /* istanbul ignore if */
     if ("development" !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + (vm._uid);
+      startTag = "vue-perf-start:" + (vm._uid);
       endTag = "vue-perf-end:" + (vm._uid);
       mark(startTag);
     }
@@ -4283,7 +4433,7 @@ function initMixin (Vue) {
     if ("development" !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false);
       mark(endTag);
-      measure(((vm._name) + " init"), startTag, endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
     }
 
     if (vm.$options.el) {
@@ -4549,8 +4699,6 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp, Array];
-
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4567,54 +4715,66 @@ function matches (pattern, name) {
   return false
 }
 
-function pruneCache (cache, current, filter) {
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
   for (var key in cache) {
     var cachedNode = cache[key];
     if (cachedNode) {
       var name = getComponentName(cachedNode.componentOptions);
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
+        pruneCacheEntry(cache, key, keys, _vnode);
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
   }
+  cache[key] = null;
+  remove(keys, key);
 }
 
+var patternTypes = [String, RegExp, Array];
+
 var KeepAlive = {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created: function created () {
     this.cache = Object.create(null);
+    this.keys = [];
   },
 
   destroyed: function destroyed () {
     var this$1 = this;
 
     for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
     }
   },
 
   watch: {
     include: function include (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
+      pruneCache(this, function (name) { return matches(val, name); });
     },
     exclude: function exclude (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
+      pruneCache(this, function (name) { return !matches(val, name); });
     }
   },
 
@@ -4630,16 +4790,29 @@ var KeepAlive = {
       )) {
         return vnode
       }
+
+      var ref = this;
+      var cache = ref.cache;
+      var keys = ref.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
         : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
       } else {
-        this.cache[key] = vnode;
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
       }
+
       vnode.data.keepAlive = true;
     }
     return vnode
@@ -4672,7 +4845,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
+    defineReactive: defineReactive
   };
 
   Vue.set = set;
@@ -4709,7 +4882,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.4.4';
+Vue$3.version = '2.5.0';
 
 /*  */
 
@@ -5119,13 +5292,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
+    function remove () {
+      if (--remove.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove$$1.listeners = listeners;
-    return remove$$1
+    remove.listeners = listeners;
+    return remove
   }
 
   function removeNode (el) {
@@ -5154,7 +5327,14 @@ function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(function (ignore) {
+              return isRegExp(ignore)
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(
@@ -5297,16 +5477,21 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
       }
-      ancestor = ancestor.parent;
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5385,7 +5570,7 @@ function createPatchFunction (backend) {
     var newEndIdx = newCh.length - 1;
     var newStartVnode = newCh[0];
     var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -5423,18 +5608,18 @@ function createPatchFunction (backend) {
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
-          elmToMove = oldCh[idxInOld];
+          vnodeToMove = oldCh[idxInOld];
           /* istanbul ignore if */
-          if ("development" !== 'production' && !elmToMove) {
+          if ("development" !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             );
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
@@ -5715,6 +5900,8 @@ function createPatchFunction (backend) {
                   insert.fns[i$2]();
                 }
               }
+            } else {
+              registerRef(ancestor);
             }
             ancestor = ancestor.parent;
           }
@@ -5878,8 +6065,9 @@ function updateAttrs (oldVnode, vnode) {
     }
   }
   // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if (isIE9 && attrs.value !== oldAttrs.value) {
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -5969,23 +6157,26 @@ var klass = {
 
 /*  */
 
-var validDivisionCharRE = /[\w).+\-_$\]]/;
+/*  */
+
+
+
+
+
+
+
+
 
 
 
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
-  }
-}
 
-/*  */
+
+
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
 
 /*  */
 
@@ -5998,30 +6189,11 @@ function wrapFilter (exp, filter) {
  * Cross-platform codegen helper for generating v-model value assignment code.
  */
 
-
-/**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
- *
- * for loop possible cases:
- *
- * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
- *
- */
-
-var str;
-var index$1;
-
 /*  */
 
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
 
 /*  */
 
@@ -6030,20 +6202,13 @@ var CHECKBOX_RADIO_TOKEN = '__c';
 // the whole point is ensuring the v-model callback gets called before
 // user-attached handlers.
 function normalizeEvents (on) {
-  var event;
   /* istanbul ignore if */
   if (isDef(on[RANGE_TOKEN])) {
     // IE input[type=range] only supports `change` event
-    event = isIE ? 'change' : 'input';
+    var event = isIE ? 'change' : 'input';
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    // Chrome fires microtasks in between click/change, leads to #4521
-    event = isChrome ? 'click' : 'change';
-    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
 }
 
 var target$1;
@@ -6129,6 +6294,11 @@ function updateDOMProps (oldVnode, vnode) {
     if (key === 'textContent' || key === 'innerHTML') {
       if (vnode.children) { vnode.children.length = 0; }
       if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
     }
 
     if (key === 'value') {
@@ -6137,7 +6307,7 @@ function updateDOMProps (oldVnode, vnode) {
       elm._value = cur;
       // avoid resetting cursor position when value is the same
       var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, vnode, strCur)) {
+      if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
     } else {
@@ -6149,13 +6319,9 @@ function updateDOMProps (oldVnode, vnode) {
 // check platforms/web/util/attrs.js acceptValue
 
 
-function shouldUpdateValue (
-  elm,
-  vnode,
-  checkVal
-) {
+function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
-    vnode.tag === 'option' ||
+    elm.tagName === 'OPTION' ||
     isDirty(elm, checkVal) ||
     isInputChanged(elm, checkVal)
   ))
@@ -6410,20 +6576,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def$$1) {
-  if (!def$$1) {
+function resolveTransition (def) {
+  if (!def) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
+  if (typeof def === 'object') {
     var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
     }
-    extend(res, def$$1);
+    extend(res, def);
     return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
   }
 }
 
@@ -6464,9 +6630,11 @@ if (hasTransition) {
 }
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout;
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
 
 function nextFrame (fn) {
   raf(function () {
@@ -7282,7 +7450,7 @@ var Transition = {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
+      var oldData = oldChild.data.transition = extend({}, data);
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes
@@ -7399,9 +7567,6 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
-    var body = document.body;
-    var f = body.offsetHeight; // eslint-disable-line
-
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -7508,7 +7673,7 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-setTimeout(function () {
+Vue$3.nextTick(function () {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue$3);
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 7e8ba21e38a..494f5910e65 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.4.4
+ * Vue.js v2.5.0
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Bn.call(t)}function s(t){return"[object RegExp]"===Bn.call(t)}function c(t){var e=parseFloat(t);return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function p(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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mo(t)||yo(t)},_o=Object.create(null),bo=f("text,number,password,search,email,tel,url"),Co=Object.freeze({createElement:function(t,e){var n=document.createElement(t);return"select"!==t?n:(e.data&&e.data.attrs&&void 0!==e.data.attrs.multiple&&n.setAttribute("multiple","multiple"),n)},createElementNS:function(t,e){return document.createElementNS(ho[t],e)},createTextNode:function(t){return document.createTextNode(t)},createComment:function(t){return document.createComment(t)},insertBefore:function(t,e,n){t.insertBefore(e,n)},removeChild:function(t,e){t.removeChild(e)},appendChild:function(t,e){t.appendChild(e)},parentNode:function(t){return t.parentNode},nextSibling:function(t){return t.nextSibling},tagName:function(t){return t.tagName},setTextContent:function(t,e){t.textContent=e},setAttribute:function(t,e,n){t.setAttribute(e,n)}}),Ao={create:function(t,e){He(e)},update:function(t,e){t.data.ref!==e.data.ref&&(He(t,!0),He(e))},destroy:function(t){He(t,!0)}},wo=new Or("",{},[]),$o=["create","activate","update","remove","destroy"],xo={create:Ke,update:Ke,destroy:function(t){Ke(t,wo)}},ko=Object.create(null),Oo=[Ao,xo],So={create:Xe,update:Xe},Eo={create:tn,update:tn},jo="__r",Io={create:on,update:on},To={create:an,update:an},Do=v(function(t){var e={},n=/;(?![^(]*\))/g,r=/:(.+)/;return t.split(n).forEach(function(t){if(t){var n=t.split(r);n.length>1&&(e[n[0].trim()]=n[1].trim())}}),e}),Lo=/^--/,Po=/\s*!important$/,No=function(t,e,n){if(Lo.test(e))t.style.setProperty(e,n);else if(Po.test(n))t.style.setProperty(e,n.replace(Po,""),"important");else{var r=Uo(e);if(Array.isArray(n))for(var o=0,i=n.length;o<i;o++)t.style[r]=n[o];else t.style[r]=n}},Mo=["Webkit","Moz","ms"],Uo=v(function(t){if(io=io||document.createElement("div").style,"filter"!==(t=Jn(t))&&t in io)return t;for(var e=t.charAt(0).toUpperCase()+t.slice(1),n=0;n<Mo.length;n++){var r=Mo[n]+e;if(r in io)return r}}),Fo={create:pn,update:pn},Ro=v(function(t){return{enterClass:t+"-enter",enterToClass:t+"-enter-to",enterActiveClass:t+"-enter-active",leaveClass:t+"-leave",leaveToClass:t+"-leave-to",leaveActiveClass:t+"-leave-active"}}),Vo=ur&&!dr,Bo="transition",Ho="animation",zo="transition",Wo="transitionend",qo="animation",Ko="animationend";Vo&&(void 0===window.ontransitionend&&void 0!==window.onwebkittransitionend&&(zo="WebkitTransition",Wo="webkitTransitionEnd"),void 0===window.onanimationend&&void 0!==window.onwebkitanimationend&&(qo="WebkitAnimation",Ko="webkitAnimationEnd"));var Go=ur?window.requestAnimationFrame?window.requestAnimationFrame.bind(window):setTimeout:function(t){return t()},Jo=/\b(transform|all)(,|$)/,Zo=function(r){function i(t){return new Or(I.tagName(t).toLowerCase(),{},[],void 0,t)}function a(t,e){function n(){0==--n.listeners&&s(t)}return n.listeners=e,n}function s(t){var n=I.parentNode(t);e(n)&&I.removeChild(n,t)}function c(t,r,o,i,a){if(t.isRootInsert=!a,!u(t,r,o,i)){var s=t.data,c=t.children,l=t.tag;e(l)?(t.elm=t.ns?I.createElementNS(t.ns,l):I.createElement(l,t),y(t),v(t,c,r),e(s)&&m(t,r),p(o,t.elm,i)):n(t.isComment)?(t.elm=I.createComment(t.text),p(o,t.elm,i)):(t.elm=I.createTextNode(t.text),p(o,t.elm,i))}}function u(t,r,o,i){var a=t.data;if(e(a)){var s=e(t.componentInstance)&&a.keepAlive;if(e(a=a.hook)&&e(a=a.init)&&a(t,!1,o,i),e(t.componentInstance))return l(t,r),n(s)&&d(t,r,o,i),!0}}function l(t,n){e(t.data.pendingInsert)&&(n.push.apply(n,t.data.pendingInsert),t.data.pendingInsert=null),t.elm=t.componentInstance.$el,h(t)?(m(t,n),y(t)):(He(t),n.push(t))}function d(t,n,r,o){for(var i,a=t;a.componentInstance;)if(a=a.componentInstance._vnode,e(i=a.data)&&e(i=i.transition)){for(i=0;i<E.activate.length;++i)E.activate[i](wo,a);n.push(a);break}p(r,t.elm,o)}function p(t,n,r){e(t)&&(e(r)?r.parentNode===t&&I.insertBefore(t,n,r):I.appendChild(t,n))}function v(t,e,n){if(Array.isArray(e))for(var r=0;r<e.length;++r)c(e[r],n,t.elm,null,!0);else o(t.text)&&I.appendChild(t.elm,I.createTextNode(t.text))}function h(t){for(;t.componentInstance;)t=t.componentInstance._vnode;return e(t.tag)}function m(t,n){for(var r=0;r<E.create.length;++r)E.create[r](wo,t);e(O=t.data.hook)&&(e(O.create)&&O.create(wo,t),e(O.insert)&&n.push(t))}function y(t){var n;if(e(n=t.functionalScopeId))I.setAttribute(t.elm,n,"");else for(var r=t;r;)e(n=r.context)&&e(n=n.$options._scopeId)&&I.setAttribute(t.elm,n,""),r=r.parent;e(n=Fr)&&n!==t.context&&n!==t.functionalContext&&e(n=n.$options._scopeId)&&I.setAttribute(t.elm,n,"")}function g(t,e,n,r,o,i){for(;r<=o;++r)c(n[r],i,t,e)}function _(t){var n,r,o=t.data;if(e(o))for(e(n=o.hook)&&e(n=n.destroy)&&n(t),n=0;n<E.destroy.length;++n)E.destroy[n](t);if(e(n=t.children))for(r=0;r<t.children.length;++r)_(t.children[r])}function b(t,n,r,o){for(;r<=o;++r){var i=n[r];e(i)&&(e(i.tag)?(C(i),_(i)):s(i.elm))}}function C(t,n){if(e(n)||e(t.data)){var r,o=E.remove.length+1;for(e(n)?n.listeners+=o:n=a(t.elm,o),e(r=t.componentInstance)&&e(r=r._vnode)&&e(r.data)&&C(r,n),r=0;r<E.remove.length;++r)E.remove[r](t,n);e(r=t.data.hook)&&e(r=r.remove)?r(t,n):n()}else s(t.elm)}function A(n,r,o,i,a){for(var s,u,l,f=0,d=0,p=r.length-1,v=r[0],h=r[p],m=o.length-1,y=o[0],_=o[m],C=!a;f<=p&&d<=m;)t(v)?v=r[++f]:t(h)?h=r[--p]:ze(v,y)?($(v,y,i),v=r[++f],y=o[++d]):ze(h,_)?($(h,_,i),h=r[--p],_=o[--m]):ze(v,_)?($(v,_,i),C&&I.insertBefore(n,v.elm,I.nextSibling(h.elm)),v=r[++f],_=o[--m]):ze(h,y)?($(h,y,i),C&&I.insertBefore(n,h.elm,v.elm),h=r[--p],y=o[++d]):(t(s)&&(s=qe(r,f,p)),t(u=e(y.key)?s[y.key]:w(y,r,f,p))?c(y,i,n,v.elm):ze(l=r[u],y)?($(l,y,i),r[u]=void 0,C&&I.insertBefore(n,l.elm,v.elm)):c(y,i,n,v.elm),y=o[++d]);f>p?g(n,t(o[m+1])?null:o[m+1].elm,o,d,m,i):d>m&&b(n,r,f,p)}function w(t,n,r,o){for(var i=r;i<o;i++){var a=n[i];if(e(a)&&ze(t,a))return i}}function $(r,o,i,a){if(r!==o){var s=o.elm=r.elm;if(n(r.isAsyncPlaceholder))e(o.asyncFactory.resolved)?k(r.elm,o,i):o.isAsyncPlaceholder=!0;else if(n(o.isStatic)&&n(r.isStatic)&&o.key===r.key&&(n(o.isCloned)||n(o.isOnce)))o.componentInstance=r.componentInstance;else{var c,u=o.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,o);var l=r.children,f=o.children;if(e(u)&&h(o)){for(c=0;c<E.update.length;++c)E.update[c](r,o);e(c=u.hook)&&e(c=c.update)&&c(r,o)}t(o.text)?e(l)&&e(f)?l!==f&&A(s,l,f,i,a):e(f)?(e(r.text)&&I.setTextContent(s,""),g(s,null,f,0,f.length-1,i)):e(l)?b(s,l,0,l.length-1):e(r.text)&&I.setTextContent(s,""):r.text!==o.text&&I.setTextContent(s,o.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,o)}}}function x(t,r,o){if(n(o)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var i=0;i<r.length;++i)r[i].data.hook.insert(r[i])}function k(t,r,o){if(n(r.isComment)&&e(r.asyncFactory))return r.elm=t,r.isAsyncPlaceholder=!0,!0;r.elm=t;var i=r.tag,a=r.data,s=r.children;if(e(a)&&(e(O=a.hook)&&e(O=O.init)&&O(r,!0),e(O=r.componentInstance)))return l(r,o),!0;if(e(i)){if(e(s))if(t.hasChildNodes())if(e(O=a)&&e(O=O.domProps)&&e(O=O.innerHTML)){if(O!==t.innerHTML)return!1}else{for(var c=!0,u=t.firstChild,f=0;f<s.length;f++){if(!u||!k(u,s[f],o)){c=!1;break}u=u.nextSibling}if(!c||u)return!1}else v(r,s,o);if(e(a))for(var d in a)if(!T(d)){m(r,o);break}}else t.data!==r.text&&(t.data=r.text);return!0}var O,S,E={},j=r.modules,I=r.nodeOps;for(O=0;O<$o.length;++O)for(E[$o[O]]=[],S=0;S<j.length;++S)e(j[S][$o[O]])&&E[$o[O]].push(j[S][$o[O]]);var T=f("attrs,style,class,staticClass,staticStyle,key");return function(r,o,a,s,u,l){if(!t(o)){var f=!1,d=[];if(t(r))f=!0,c(o,d,u,l);else{var p=e(r.nodeType);if(!p&&ze(r,o))$(r,o,d,s);else{if(p){if(1===r.nodeType&&r.hasAttribute(er)&&(r.removeAttribute(er),a=!0),n(a)&&k(r,o,d))return x(o,d,!0),r;r=i(r)}var v=r.elm,m=I.parentNode(v);if(c(o,d,v._leaveCb?null:m,I.nextSibling(v)),e(o.parent))for(var y=o.parent,g=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,g){for(var A=0;A<E.create.length;++A)E.create[A](wo,y);var w=y.data.hook.insert;if(w.merged)for(var O=1;O<w.fns.length;O++)w.fns[O]()}else He(y);y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&_(r)}}return x(o,d,f),o.elm}e(r)&&_(r)}}({nodeOps:Co,modules:[So,Eo,Io,To,Fo,ur?{create:Sn,activate:Sn,remove:function(t,e){!0!==t.data.show?xn(t,e):e()}}:{}].concat(Oo)});dr&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Pn(t,"input")});var Qo={model:{inserted:function(t,e,n){"select"===n.tag?(En(t,e,n.context),t._vOptions=[].map.call(t.options,Tn)):("textarea"===n.tag||bo(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Ln),vr||(t.addEventListener("compositionstart",Dn),t.addEventListener("compositionend",Ln)),dr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){En(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Tn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return In(t,o)}):e.value!==e.oldValue&&In(e.value,o))&&Pn(t,"change")}}},show:{bind:function(t,e,n){var r=e.value,o=(n=Nn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,$n(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Nn(n)).data&&n.data.transition?(n.data.show=!0,r?$n(n,function(){t.style.display=t.__vOriginalDisplay}):xn(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Xo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},Yo={name:"transition",props:Xo,abstract:!0,render:function(t){var e=this,n=this.$options._renderChildren;if(n&&(n=n.filter(function(t){return t.tag||pt(t)})).length){var r=this.mode,i=n[0];if(Rn(this.$vnode))return i;var a=Mn(i);if(!a)return i;if(this._leaving)return Fn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Un(this),u=this._vnode,l=Mn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Vn(a,l)&&!pt(l)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,rt(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Fn(t,i);if("in-out"===r){if(pt(a))return u;var d,p=function(){d()};rt(c,"afterEnter",p),rt(c,"enterCancelled",p),rt(f,"delayLeave",function(t){d=t})}}return i}}},ti=y({tag:String,moveClass:String},Xo);delete ti.mode;var ei={Transition:Yo,TransitionGroup:{props:ti,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Un(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Bn),t.forEach(Hn),t.forEach(zn),t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;gn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Wo,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Wo,t),n._moveCb=null,_n(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vo)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){hn(n,t)}),vn(n,e),n.style.display="none",this.$el.appendChild(n);var r=Cn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return $e.config.mustUseProp=function(t,e,n){return"value"===n&&so(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},$e.config.isReservedTag=go,$e.config.isReservedAttr=ao,$e.config.getTagNamespace=function(t){return yo(t)?"svg":"math"===t?"math":void 0},$e.config.isUnknownElement=function(t){if(!ur)return!0;if(go(t))return!1;if(t=t.toLowerCase(),null!=_o[t])return _o[t];var e=document.createElement(t);return t.indexOf("-")>-1?_o[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:_o[t]=/HTMLUnknownElement/.test(e.toString())},y($e.options.directives,Qo),y($e.options.components,ei),$e.prototype.__patch__=ur?Zo:_,$e.prototype.$mount=function(t,e){return t=t&&ur?Be(t):void 0,wt(this,t,e)},$e.nextTick(function(){or.devtools&&Cr&&Cr.emit("init",$e)},0),$e});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index a118082da32..579c45d63af 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -44,8 +44,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -60,20 +67,29 @@ function isPlainObject (obj) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
 /**
  * Convert a value to a string that is actually rendered.
  */
-
+function toString (val) {
+  return val == null
+    ? ''
+    : typeof val === 'object'
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
 
 /**
  * Convert a input value to a number for persistence.
  * If the conversion fails, return original string.
  */
-
+function toNumber (val) {
+  var n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
 
 /**
  * Make a map and return a function for checking if a key
@@ -101,7 +117,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -220,9 +236,45 @@ function genStaticKeys (modules) {
  * Check if two values are loosely equal - that is,
  * if they are plain objects, do they have the same shape?
  */
+function looseEqual (a, b) {
+  if (a === b) { return true }
+  var isObjectA = isObject(a);
+  var isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
 
-
-
+function looseIndexOf (arr, val) {
+  for (var i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) { return i }
+  }
+  return -1
+}
 
 /**
  * Ensure a function is called only once.
@@ -334,7 +386,7 @@ function renderAttrs (node) {
     var parent = node.parent;
     while (isDef(parent)) {
       if (isDef(parent.data) && isDef(parent.data.attrs)) {
-        attrs = Object.assign({}, attrs, parent.data.attrs);
+        attrs = extend(extend({}, attrs), parent.data.attrs);
       }
       parent = parent.parent;
     }
@@ -387,6 +439,8 @@ var VNode = function VNode (
   this.ns = undefined;
   this.context = context;
   this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -402,7 +456,7 @@ var VNode = function VNode (
   this.isAsyncPlaceholder = false;
 };
 
-var prototypeAccessors = { child: {} };
+var prototypeAccessors = { child: { configurable: true } };
 
 // DEPRECATED: alias for componentInstance for backwards compat.
 /* istanbul ignore next */
@@ -429,6 +483,36 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
 
 /*  */
 
@@ -439,7 +523,7 @@ function renderDOMProps (node) {
   var parent = node.parent;
   while (isDef(parent)) {
     if (parent.data && parent.data.domProps) {
-      props = Object.assign({}, props, parent.data.domProps);
+      props = extend(extend({}, props), parent.data.domProps);
     }
     parent = parent.parent;
   }
@@ -480,10 +564,7 @@ var emptyObject = Object.freeze({});
 /**
  * Check if a string starts with $ or _
  */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
+
 
 /**
  * Define a property.
@@ -533,7 +614,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -628,7 +710,8 @@ var config = ({
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 {
   var hasConsole = typeof console !== 'undefined';
@@ -659,15 +742,13 @@ var formatComponentName = (null); // work around flow check
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -689,7 +770,7 @@ var formatComponentName = (null); // work around flow check
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -722,23 +803,50 @@ var formatComponentName = (null); // work around flow check
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -756,14 +864,14 @@ var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
-var supportsPassive = false;
+
 if (inBrowser) {
   try {
     var opts = {};
     Object.defineProperty(opts, 'passive', ({
       get: function get () {
         /* istanbul ignore next */
-        supportsPassive = true;
+        
       }
     })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
@@ -816,45 +924,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -877,6 +980,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -886,7 +990,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -1046,7 +1150,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -1089,7 +1193,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -1113,7 +1217,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1196,7 +1300,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1358,11 +1462,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    "development" !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1375,22 +1487,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1403,7 +1523,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1440,7 +1568,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1464,6 +1592,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if ("development" !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1471,13 +1605,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
     }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if ("development" !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1496,6 +1643,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1513,8 +1670,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1678,9 +1835,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -2028,6 +2185,23 @@ var isNonPhrasingTag = makeMap(
 /*  */
 
 var MAX_STACK_DEPTH = 1000;
+var noop$1 = function (_) { return _; };
+
+var defer = typeof process !== 'undefined' && process.nextTick
+  ? process.nextTick
+  : typeof Promise !== 'undefined'
+    ? function (fn) { return Promise.resolve().then(fn); }
+    : typeof setTimeout !== 'undefined'
+      ? setTimeout
+      : noop$1;
+
+if (defer === noop$1) {
+  throw new Error(
+    'Your JavaScript runtime does not support any asynchronous primitives ' +
+    'that are required by vue-server-renderer. Please use a polyfill for ' +
+    'either Promise or setTimeout.'
+  )
+}
 
 function createWriteFunction (
   write,
@@ -2041,7 +2215,7 @@ function createWriteFunction (
     var waitForNext = write(text, next);
     if (waitForNext !== true) {
       if (stackDepth >= MAX_STACK_DEPTH) {
-        process.nextTick(function () {
+        defer(function () {
           try { next(); } catch (e) {
             onError(e);
           }
@@ -2388,7 +2562,15 @@ function getBindingAttr (
   }
 }
 
-function getAndRemoveAttr (el, name) {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
   var val;
   if ((val = el.attrsMap[name]) != null) {
     var list = el.attrsList;
@@ -2399,6 +2581,9 @@ function getAndRemoveAttr (el, name) {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
   return val
 }
 
@@ -2488,419 +2673,75 @@ var style = {
   genData: genData$1
 };
 
-var modules$1 = [
-  klass,
-  style
-];
+var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
 
-/*  */
 
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
 
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
 
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-  };
-}
 
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
-  }
+function createCommonjsModule(fn, module) {
+	return module = { exports: {} }, fn(module, module.exports), module.exports;
 }
 
-/**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
- *
- * for loop possible cases:
- *
- * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
- *
- */
+var he = createCommonjsModule(function (module, exports) {
+/*! https://mths.be/he v1.1.1 by @mathias | MIT license */
+(function(root) {
 
-var len;
-var str;
-var chr;
-var index;
-var expressionPos;
-var expressionEndPos;
+	// Detect free variables `exports`.
+	var freeExports = 'object' == 'object' && exports;
 
-function parseModel (val) {
-  str = val;
-  len = str.length;
-  index = expressionPos = expressionEndPos = 0;
+	// Detect free variable `module`.
+	var freeModule = 'object' == 'object' && module &&
+		module.exports == freeExports && module;
 
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
-    }
-  }
+	// Detect free variable `global`, from Node.js or Browserified code,
+	// and use it as `root`.
+	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
+	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+		root = freeGlobal;
+	}
 
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
+	/*--------------------------------------------------------------------------*/
 
-  return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
-  }
-}
+	// All astral symbols.
+	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+	// All ASCII symbols (not just printable ASCII) except those listed in the
+	// first column of the overrides table.
+	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
+	var regexAsciiWhitelist = /[\x01-\x7F]/g;
+	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
+	// code points listed in the first column of the overrides table on
+	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
+	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
 
-function next () {
-  return str.charCodeAt(++index)
-}
+	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
+	var encodeMap = 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','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
 
-function eof () {
-  return index >= len
-}
+	var regexEscape = /["&'<>`]/g;
+	var escapeMap = {
+		'"': '&quot;',
+		'&': '&amp;',
+		'\'': '&#x27;',
+		'<': '&lt;',
+		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
+		// following is not strictly necessary unless it’s part of a tag or an
+		// unquoted attribute value. We’re only escaping it to support those
+		// situations, and for XML support.
+		'>': '&gt;',
+		// In Internet Explorer ≤ 8, the backtick character can be used
+		// to break out of (un)quoted attribute values or HTML comments.
+		// See http://html5sec.org/#102, http://html5sec.org/#108, and
+		// http://html5sec.org/#133.
+		'`': '&#x60;'
+	};
 
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index;
-      break
-    }
-  }
-}
-
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
-  }
-}
-
-/*  */
-
-var warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
-
-  {
-    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (tag === 'input' && dynamicType) {
-      warn$1(
-        "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
-        "v-model does not support dynamic input types. Use v-if branches instead."
-      );
-    }
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
-    }
-  }
-
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else {
-    warn$1(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
-
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
-  );
-  addHandler(el, CHECKBOX_RADIO_TOKEN,
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-    el,
-    value,
-    modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-    el,
-    value,
-    modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
-};
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-
-
-
-
-function createCommonjsModule(fn, module) {
-	return module = { exports: {} }, fn(module, module.exports), module.exports;
-}
-
-var he = createCommonjsModule(function (module, exports) {
-/*! https://mths.be/he v1.1.1 by @mathias | MIT license */
-(function(root) {
-
-	// Detect free variables `exports`.
-	var freeExports = 'object' == 'object' && exports;
-
-	// Detect free variable `module`.
-	var freeModule = 'object' == 'object' && module &&
-		module.exports == freeExports && module;
-
-	// Detect free variable `global`, from Node.js or Browserified code,
-	// and use it as `root`.
-	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
-	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
-		root = freeGlobal;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	// All astral symbols.
-	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
-	// All ASCII symbols (not just printable ASCII) except those listed in the
-	// first column of the overrides table.
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
-	var regexAsciiWhitelist = /[\x01-\x7F]/g;
-	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
-	// code points listed in the first column of the overrides table on
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
-	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
-
-	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
-	var encodeMap = {'\xAD':'shy','\u200C':'zwnj','\u200D':'zwj','\u200E':'lrm','\u2063':'ic','\u2062':'it','\u2061':'af','\u200F':'rlm','\u200B':'ZeroWidthSpace','\u2060':'NoBreak','\u0311':'DownBreve','\u20DB':'tdot','\u20DC':'DotDot','\t':'Tab','\n':'NewLine','\u2008':'puncsp','\u205F':'MediumSpace','\u2009':'thinsp','\u200A':'hairsp','\u2004':'emsp13','\u2002':'ensp','\u2005':'emsp14','\u2003':'emsp','\u2007':'numsp','\xA0':'nbsp','\u205F\u200A':'ThickSpace','\u203E':'oline','_':'lowbar','\u2010':'dash','\u2013':'ndash','\u2014':'mdash','\u2015':'horbar',',':'comma',';':'semi','\u204F':'bsemi',':':'colon','\u2A74':'Colone','!':'excl','\xA1':'iexcl','?':'quest','\xBF':'iquest','.':'period','\u2025':'nldr','\u2026':'mldr','\xB7':'middot','\'':'apos','\u2018':'lsquo','\u2019':'rsquo','\u201A':'sbquo','\u2039':'lsaquo','\u203A':'rsaquo','"':'quot','\u201C':'ldquo','\u201D':'rdquo','\u201E':'bdquo','\xAB':'laquo','\xBB':'raquo','(':'lpar',')':'rpar','[':'lsqb',']':'rsqb','{':'lcub','}':'rcub','\u2308':'lceil','\u2309':'rceil','\u230A':'lfloor','\u230B':'rfloor','\u2985':'lopar','\u2986':'ropar','\u298B':'lbrke','\u298C':'rbrke','\u298D':'lbrkslu','\u298E':'rbrksld','\u298F':'lbrksld','\u2990':'rbrkslu','\u2991':'langd','\u2992':'rangd','\u2993':'lparlt','\u2994':'rpargt','\u2995':'gtlPar','\u2996':'ltrPar','\u27E6':'lobrk','\u27E7':'robrk','\u27E8':'lang','\u27E9':'rang','\u27EA':'Lang','\u27EB':'Rang','\u27EC':'loang','\u27ED':'roang','\u2772':'lbbrk','\u2773':'rbbrk','\u2016':'Vert','\xA7':'sect','\xB6':'para','@':'commat','*':'ast','/':'sol','undefined':null,'&':'amp','#':'num','%':'percnt','\u2030':'permil','\u2031':'pertenk','\u2020':'dagger','\u2021':'Dagger','\u2022':'bull','\u2043':'hybull','\u2032':'prime','\u2033':'Prime','\u2034':'tprime','\u2057':'qprime','\u2035':'bprime','\u2041':'caret','`':'grave','\xB4':'acute','\u02DC':'tilde','^':'Hat','\xAF':'macr','\u02D8':'breve','\u02D9':'dot','\xA8':'die','\u02DA':'ring','\u02DD':'dblac','\xB8':'cedil','\u02DB':'ogon','\u02C6':'circ','\u02C7':'caron','\xB0':'deg','\xA9':'copy','\xAE':'reg','\u2117':'copysr','\u2118':'wp','\u211E':'rx','\u2127':'mho','\u2129':'iiota','\u2190':'larr','\u219A':'nlarr','\u2192':'rarr','\u219B':'nrarr','\u2191':'uarr','\u2193':'darr','\u2194':'harr','\u21AE':'nharr','\u2195':'varr','\u2196':'nwarr','\u2197':'nearr','\u2198':'searr','\u2199':'swarr','\u219D':'rarrw','\u219D\u0338':'nrarrw','\u219E':'Larr','\u219F':'Uarr','\u21A0':'Rarr','\u21A1':'Darr','\u21A2':'larrtl','\u21A3':'rarrtl','\u21A4':'mapstoleft','\u21A5':'mapstoup','\u21A6':'map','\u21A7':'mapstodown','\u21A9':'larrhk','\u21AA':'rarrhk','\u21AB':'larrlp','\u21AC':'rarrlp','\u21AD':'harrw','\u21B0':'lsh','\u21B1':'rsh','\u21B2':'ldsh','\u21B3':'rdsh','\u21B5':'crarr','\u21B6':'cularr','\u21B7':'curarr','\u21BA':'olarr','\u21BB':'orarr','\u21BC':'lharu','\u21BD':'lhard','\u21BE':'uharr','\u21BF':'uharl','\u21C0':'rharu','\u21C1':'rhard','\u21C2':'dharr','\u21C3':'dharl','\u21C4':'rlarr','\u21C5':'udarr','\u21C6':'lrarr','\u21C7':'llarr','\u21C8':'uuarr','\u21C9':'rrarr','\u21CA':'ddarr','\u21CB':'lrhar','\u21CC':'rlhar','\u21D0':'lArr','\u21CD':'nlArr','\u21D1':'uArr','\u21D2':'rArr','\u21CF':'nrArr','\u21D3':'dArr','\u21D4':'iff','\u21CE':'nhArr','\u21D5':'vArr','\u21D6':'nwArr','\u21D7':'neArr','\u21D8':'seArr','\u21D9':'swArr','\u21DA':'lAarr','\u21DB':'rAarr','\u21DD':'zigrarr','\u21E4':'larrb','\u21E5':'rarrb','\u21F5':'duarr','\u21FD':'loarr','\u21FE':'roarr','\u21FF':'hoarr','\u2200':'forall','\u2201':'comp','\u2202':'part','\u2202\u0338':'npart','\u2203':'exist','\u2204':'nexist','\u2205':'empty','\u2207':'Del','\u2208':'in','\u2209':'notin','\u220B':'ni','\u220C':'notni','\u03F6':'bepsi','\u220F':'prod','\u2210':'coprod','\u2211':'sum','+':'plus','\xB1':'pm','\xF7':'div','\xD7':'times','<':'lt','\u226E':'nlt','<\u20D2':'nvlt','=':'equals','\u2260':'ne','=\u20E5':'bne','\u2A75':'Equal','>':'gt','\u226F':'ngt','>\u20D2':'nvgt','\xAC':'not','|':'vert','\xA6':'brvbar','\u2212':'minus','\u2213':'mp','\u2214':'plusdo','\u2044':'frasl','\u2216':'setmn','\u2217':'lowast','\u2218':'compfn','\u221A':'Sqrt','\u221D':'prop','\u221E':'infin','\u221F':'angrt','\u2220':'ang','\u2220\u20D2':'nang','\u2221':'angmsd','\u2222':'angsph','\u2223':'mid','\u2224':'nmid','\u2225':'par','\u2226':'npar','\u2227':'and','\u2228':'or','\u2229':'cap','\u2229\uFE00':'caps','\u222A':'cup','\u222A\uFE00':'cups','\u222B':'int','\u222C':'Int','\u222D':'tint','\u2A0C':'qint','\u222E':'oint','\u222F':'Conint','\u2230':'Cconint','\u2231':'cwint','\u2232':'cwconint','\u2233':'awconint','\u2234':'there4','\u2235':'becaus','\u2236':'ratio','\u2237':'Colon','\u2238':'minusd','\u223A':'mDDot','\u223B':'homtht','\u223C':'sim','\u2241':'nsim','\u223C\u20D2':'nvsim','\u223D':'bsim','\u223D\u0331':'race','\u223E':'ac','\u223E\u0333':'acE','\u223F':'acd','\u2240':'wr','\u2242':'esim','\u2242\u0338':'nesim','\u2243':'sime','\u2244':'nsime','\u2245':'cong','\u2247':'ncong','\u2246':'simne','\u2248':'ap','\u2249':'nap','\u224A':'ape','\u224B':'apid','\u224B\u0338':'napid','\u224C':'bcong','\u224D':'CupCap','\u226D':'NotCupCap','\u224D\u20D2':'nvap','\u224E':'bump','\u224E\u0338':'nbump','\u224F':'bumpe','\u224F\u0338':'nbumpe','\u2250':'doteq','\u2250\u0338':'nedot','\u2251':'eDot','\u2252':'efDot','\u2253':'erDot','\u2254':'colone','\u2255':'ecolon','\u2256':'ecir','\u2257':'cire','\u2259':'wedgeq','\u225A':'veeeq','\u225C':'trie','\u225F':'equest','\u2261':'equiv','\u2262':'nequiv','\u2261\u20E5':'bnequiv','\u2264':'le','\u2270':'nle','\u2264\u20D2':'nvle','\u2265':'ge','\u2271':'nge','\u2265\u20D2':'nvge','\u2266':'lE','\u2266\u0338':'nlE','\u2267':'gE','\u2267\u0338':'ngE','\u2268\uFE00':'lvnE','\u2268':'lnE','\u2269':'gnE','\u2269\uFE00':'gvnE','\u226A':'ll','\u226A\u0338':'nLtv','\u226A\u20D2':'nLt','\u226B':'gg','\u226B\u0338':'nGtv','\u226B\u20D2':'nGt','\u226C':'twixt','\u2272':'lsim','\u2274':'nlsim','\u2273':'gsim','\u2275':'ngsim','\u2276':'lg','\u2278':'ntlg','\u2277':'gl','\u2279':'ntgl','\u227A':'pr','\u2280':'npr','\u227B':'sc','\u2281':'nsc','\u227C':'prcue','\u22E0':'nprcue','\u227D':'sccue','\u22E1':'nsccue','\u227E':'prsim','\u227F':'scsim','\u227F\u0338':'NotSucceedsTilde','\u2282':'sub','\u2284':'nsub','\u2282\u20D2':'vnsub','\u2283':'sup','\u2285':'nsup','\u2283\u20D2':'vnsup','\u2286':'sube','\u2288':'nsube','\u2287':'supe','\u2289':'nsupe','\u228A\uFE00':'vsubne','\u228A':'subne','\u228B\uFE00':'vsupne','\u228B':'supne','\u228D':'cupdot','\u228E':'uplus','\u228F':'sqsub','\u228F\u0338':'NotSquareSubset','\u2290':'sqsup','\u2290\u0338':'NotSquareSuperset','\u2291':'sqsube','\u22E2':'nsqsube','\u2292':'sqsupe','\u22E3':'nsqsupe','\u2293':'sqcap','\u2293\uFE00':'sqcaps','\u2294':'sqcup','\u2294\uFE00':'sqcups','\u2295':'oplus','\u2296':'ominus','\u2297':'otimes','\u2298':'osol','\u2299':'odot','\u229A':'ocir','\u229B':'oast','\u229D':'odash','\u229E':'plusb','\u229F':'minusb','\u22A0':'timesb','\u22A1':'sdotb','\u22A2':'vdash','\u22AC':'nvdash','\u22A3':'dashv','\u22A4':'top','\u22A5':'bot','\u22A7':'models','\u22A8':'vDash','\u22AD':'nvDash','\u22A9':'Vdash','\u22AE':'nVdash','\u22AA':'Vvdash','\u22AB':'VDash','\u22AF':'nVDash','\u22B0':'prurel','\u22B2':'vltri','\u22EA':'nltri','\u22B3':'vrtri','\u22EB':'nrtri','\u22B4':'ltrie','\u22EC':'nltrie','\u22B4\u20D2':'nvltrie','\u22B5':'rtrie','\u22ED':'nrtrie','\u22B5\u20D2':'nvrtrie','\u22B6':'origof','\u22B7':'imof','\u22B8':'mumap','\u22B9':'hercon','\u22BA':'intcal','\u22BB':'veebar','\u22BD':'barvee','\u22BE':'angrtvb','\u22BF':'lrtri','\u22C0':'Wedge','\u22C1':'Vee','\u22C2':'xcap','\u22C3':'xcup','\u22C4':'diam','\u22C5':'sdot','\u22C6':'Star','\u22C7':'divonx','\u22C8':'bowtie','\u22C9':'ltimes','\u22CA':'rtimes','\u22CB':'lthree','\u22CC':'rthree','\u22CD':'bsime','\u22CE':'cuvee','\u22CF':'cuwed','\u22D0':'Sub','\u22D1':'Sup','\u22D2':'Cap','\u22D3':'Cup','\u22D4':'fork','\u22D5':'epar','\u22D6':'ltdot','\u22D7':'gtdot','\u22D8':'Ll','\u22D8\u0338':'nLl','\u22D9':'Gg','\u22D9\u0338':'nGg','\u22DA\uFE00':'lesg','\u22DA':'leg','\u22DB':'gel','\u22DB\uFE00':'gesl','\u22DE':'cuepr','\u22DF':'cuesc','\u22E6':'lnsim','\u22E7':'gnsim','\u22E8':'prnsim','\u22E9':'scnsim','\u22EE':'vellip','\u22EF':'ctdot','\u22F0':'utdot','\u22F1':'dtdot','\u22F2':'disin','\u22F3':'isinsv','\u22F4':'isins','\u22F5':'isindot','\u22F5\u0338':'notindot','\u22F6':'notinvc','\u22F7':'notinvb','\u22F9':'isinE','\u22F9\u0338':'notinE','\u22FA':'nisd','\u22FB':'xnis','\u22FC':'nis','\u22FD':'notnivc','\u22FE':'notnivb','\u2305':'barwed','\u2306':'Barwed','\u230C':'drcrop','\u230D':'dlcrop','\u230E':'urcrop','\u230F':'ulcrop','\u2310':'bnot','\u2312':'profline','\u2313':'profsurf','\u2315':'telrec','\u2316':'target','\u231C':'ulcorn','\u231D':'urcorn','\u231E':'dlcorn','\u231F':'drcorn','\u2322':'frown','\u2323':'smile','\u232D':'cylcty','\u232E':'profalar','\u2336':'topbot','\u233D':'ovbar','\u233F':'solbar','\u237C':'angzarr','\u23B0':'lmoust','\u23B1':'rmoust','\u23B4':'tbrk','\u23B5':'bbrk','\u23B6':'bbrktbrk','\u23DC':'OverParenthesis','\u23DD':'UnderParenthesis','\u23DE':'OverBrace','\u23DF':'UnderBrace','\u23E2':'trpezium','\u23E7':'elinters','\u2423':'blank','\u2500':'boxh','\u2502':'boxv','\u250C':'boxdr','\u2510':'boxdl','\u2514':'boxur','\u2518':'boxul','\u251C':'boxvr','\u2524':'boxvl','\u252C':'boxhd','\u2534':'boxhu','\u253C':'boxvh','\u2550':'boxH','\u2551':'boxV','\u2552':'boxdR','\u2553':'boxDr','\u2554':'boxDR','\u2555':'boxdL','\u2556':'boxDl','\u2557':'boxDL','\u2558':'boxuR','\u2559':'boxUr','\u255A':'boxUR','\u255B':'boxuL','\u255C':'boxUl','\u255D':'boxUL','\u255E':'boxvR','\u255F':'boxVr','\u2560':'boxVR','\u2561':'boxvL','\u2562':'boxVl','\u2563':'boxVL','\u2564':'boxHd','\u2565':'boxhD','\u2566':'boxHD','\u2567':'boxHu','\u2568':'boxhU','\u2569':'boxHU','\u256A':'boxvH','\u256B':'boxVh','\u256C':'boxVH','\u2580':'uhblk','\u2584':'lhblk','\u2588':'block','\u2591':'blk14','\u2592':'blk12','\u2593':'blk34','\u25A1':'squ','\u25AA':'squf','\u25AB':'EmptyVerySmallSquare','\u25AD':'rect','\u25AE':'marker','\u25B1':'fltns','\u25B3':'xutri','\u25B4':'utrif','\u25B5':'utri','\u25B8':'rtrif','\u25B9':'rtri','\u25BD':'xdtri','\u25BE':'dtrif','\u25BF':'dtri','\u25C2':'ltrif','\u25C3':'ltri','\u25CA':'loz','\u25CB':'cir','\u25EC':'tridot','\u25EF':'xcirc','\u25F8':'ultri','\u25F9':'urtri','\u25FA':'lltri','\u25FB':'EmptySmallSquare','\u25FC':'FilledSmallSquare','\u2605':'starf','\u2606':'star','\u260E':'phone','\u2640':'female','\u2642':'male','\u2660':'spades','\u2663':'clubs','\u2665':'hearts','\u2666':'diams','\u266A':'sung','\u2713':'check','\u2717':'cross','\u2720':'malt','\u2736':'sext','\u2758':'VerticalSeparator','\u27C8':'bsolhsub','\u27C9':'suphsol','\u27F5':'xlarr','\u27F6':'xrarr','\u27F7':'xharr','\u27F8':'xlArr','\u27F9':'xrArr','\u27FA':'xhArr','\u27FC':'xmap','\u27FF':'dzigrarr','\u2902':'nvlArr','\u2903':'nvrArr','\u2904':'nvHarr','\u2905':'Map','\u290C':'lbarr','\u290D':'rbarr','\u290E':'lBarr','\u290F':'rBarr','\u2910':'RBarr','\u2911':'DDotrahd','\u2912':'UpArrowBar','\u2913':'DownArrowBar','\u2916':'Rarrtl','\u2919':'latail','\u291A':'ratail','\u291B':'lAtail','\u291C':'rAtail','\u291D':'larrfs','\u291E':'rarrfs','\u291F':'larrbfs','\u2920':'rarrbfs','\u2923':'nwarhk','\u2924':'nearhk','\u2925':'searhk','\u2926':'swarhk','\u2927':'nwnear','\u2928':'toea','\u2929':'tosa','\u292A':'swnwar','\u2933':'rarrc','\u2933\u0338':'nrarrc','\u2935':'cudarrr','\u2936':'ldca','\u2937':'rdca','\u2938':'cudarrl','\u2939':'larrpl','\u293C':'curarrm','\u293D':'cularrp','\u2945':'rarrpl','\u2948':'harrcir','\u2949':'Uarrocir','\u294A':'lurdshar','\u294B':'ldrushar','\u294E':'LeftRightVector','\u294F':'RightUpDownVector','\u2950':'DownLeftRightVector','\u2951':'LeftUpDownVector','\u2952':'LeftVectorBar','\u2953':'RightVectorBar','\u2954':'RightUpVectorBar','\u2955':'RightDownVectorBar','\u2956':'DownLeftVectorBar','\u2957':'DownRightVectorBar','\u2958':'LeftUpVectorBar','\u2959':'LeftDownVectorBar','\u295A':'LeftTeeVector','\u295B':'RightTeeVector','\u295C':'RightUpTeeVector','\u295D':'RightDownTeeVector','\u295E':'DownLeftTeeVector','\u295F':'DownRightTeeVector','\u2960':'LeftUpTeeVector','\u2961':'LeftDownTeeVector','\u2962':'lHar','\u2963':'uHar','\u2964':'rHar','\u2965':'dHar','\u2966':'luruhar','\u2967':'ldrdhar','\u2968':'ruluhar','\u2969':'rdldhar','\u296A':'lharul','\u296B':'llhard','\u296C':'rharul','\u296D':'lrhard','\u296E':'udhar','\u296F':'duhar','\u2970':'RoundImplies','\u2971':'erarr','\u2972':'simrarr','\u2973':'larrsim','\u2974':'rarrsim','\u2975':'rarrap','\u2976':'ltlarr','\u2978':'gtrarr','\u2979':'subrarr','\u297B':'suplarr','\u297C':'lfisht','\u297D':'rfisht','\u297E':'ufisht','\u297F':'dfisht','\u299A':'vzigzag','\u299C':'vangrt','\u299D':'angrtvbd','\u29A4':'ange','\u29A5':'range','\u29A6':'dwangle','\u29A7':'uwangle','\u29A8':'angmsdaa','\u29A9':'angmsdab','\u29AA':'angmsdac','\u29AB':'angmsdad','\u29AC':'angmsdae','\u29AD':'angmsdaf','\u29AE':'angmsdag','\u29AF':'angmsdah','\u29B0':'bemptyv','\u29B1':'demptyv','\u29B2':'cemptyv','\u29B3':'raemptyv','\u29B4':'laemptyv','\u29B5':'ohbar','\u29B6':'omid','\u29B7':'opar','\u29B9':'operp','\u29BB':'olcross','\u29BC':'odsold','\u29BE':'olcir','\u29BF':'ofcir','\u29C0':'olt','\u29C1':'ogt','\u29C2':'cirscir','\u29C3':'cirE','\u29C4':'solb','\u29C5':'bsolb','\u29C9':'boxbox','\u29CD':'trisb','\u29CE':'rtriltri','\u29CF':'LeftTriangleBar','\u29CF\u0338':'NotLeftTriangleBar','\u29D0':'RightTriangleBar','\u29D0\u0338':'NotRightTriangleBar','\u29DC':'iinfin','\u29DD':'infintie','\u29DE':'nvinfin','\u29E3':'eparsl','\u29E4':'smeparsl','\u29E5':'eqvparsl','\u29EB':'lozf','\u29F4':'RuleDelayed','\u29F6':'dsol','\u2A00':'xodot','\u2A01':'xoplus','\u2A02':'xotime','\u2A04':'xuplus','\u2A06':'xsqcup','\u2A0D':'fpartint','\u2A10':'cirfnint','\u2A11':'awint','\u2A12':'rppolint','\u2A13':'scpolint','\u2A14':'npolint','\u2A15':'pointint','\u2A16':'quatint','\u2A17':'intlarhk','\u2A22':'pluscir','\u2A23':'plusacir','\u2A24':'simplus','\u2A25':'plusdu','\u2A26':'plussim','\u2A27':'plustwo','\u2A29':'mcomma','\u2A2A':'minusdu','\u2A2D':'loplus','\u2A2E':'roplus','\u2A2F':'Cross','\u2A30':'timesd','\u2A31':'timesbar','\u2A33':'smashp','\u2A34':'lotimes','\u2A35':'rotimes','\u2A36':'otimesas','\u2A37':'Otimes','\u2A38':'odiv','\u2A39':'triplus','\u2A3A':'triminus','\u2A3B':'tritime','\u2A3C':'iprod','\u2A3F':'amalg','\u2A40':'capdot','\u2A42':'ncup','\u2A43':'ncap','\u2A44':'capand','\u2A45':'cupor','\u2A46':'cupcap','\u2A47':'capcup','\u2A48':'cupbrcap','\u2A49':'capbrcup','\u2A4A':'cupcup','\u2A4B':'capcap','\u2A4C':'ccups','\u2A4D':'ccaps','\u2A50':'ccupssm','\u2A53':'And','\u2A54':'Or','\u2A55':'andand','\u2A56':'oror','\u2A57':'orslope','\u2A58':'andslope','\u2A5A':'andv','\u2A5B':'orv','\u2A5C':'andd','\u2A5D':'ord','\u2A5F':'wedbar','\u2A66':'sdote','\u2A6A':'simdot','\u2A6D':'congdot','\u2A6D\u0338':'ncongdot','\u2A6E':'easter','\u2A6F':'apacir','\u2A70':'apE','\u2A70\u0338':'napE','\u2A71':'eplus','\u2A72':'pluse','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
-
-	var regexEscape = /["&'<>`]/g;
-	var escapeMap = {
-		'"': '&quot;',
-		'&': '&amp;',
-		'\'': '&#x27;',
-		'<': '&lt;',
-		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
-		// following is not strictly necessary unless it’s part of a tag or an
-		// unquoted attribute value. We’re only escaping it to support those
-		// situations, and for XML support.
-		'>': '&gt;',
-		// In Internet Explorer ≤ 8, the backtick character can be used
-		// to break out of (un)quoted attribute values or HTML comments.
-		// See http://html5sec.org/#102, http://html5sec.org/#108, and
-		// http://html5sec.org/#133.
-		'`': '&#x60;'
-	};
-
-	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
-	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
-	var regexDecode = /&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)([=a-zA-Z0-9])?/g;
-	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
-	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
-	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
-	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
+	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
+	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+	var regexDecode = /&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)([=a-zA-Z0-9])?/g;
+	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
+	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
+	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
+	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
 
 	/*--------------------------------------------------------------------------*/
 
@@ -3495,6 +3336,156 @@ function parseHTML (html, options) {
 
 /*  */
 
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  var ref = modifiers || {};
+  var number = ref.number;
+  var trim = ref.trim;
+
+  var baseValueExpression = '$$v';
+  var valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      "(typeof " + baseValueExpression + " === 'string'" +
+        "? " + baseValueExpression + ".trim()" +
+        ": " + baseValueExpression + ")";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+  var assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: ("(" + value + ")"),
+    expression: ("\"" + value + "\""),
+    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  var res = parseModel(value);
+  if (res.key === null) {
+    return (value + "=" + assignment)
+  } else {
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+var len;
+var str;
+var chr;
+var index;
+var expressionPos;
+var expressionEndPos;
+
+
+
+function parseModel (val) {
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index = val.lastIndexOf('.');
+    if (index > -1) {
+      return {
+        exp: val.slice(0, index),
+        key: '"' + val.slice(index + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index)
+}
+
+function eof () {
+  return index >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  var inBracket = 1;
+  expressionPos = index;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) { inBracket++; }
+    if (chr === 0x5D) { inBracket--; }
+    if (inBracket === 0) {
+      expressionEndPos = index;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  var stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
+    }
+  }
+}
+
+/*  */
+
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
@@ -3507,7 +3498,7 @@ var modifierRE = /\.[^.]+/g;
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
-var warn$2;
+var warn$1;
 var delimiters;
 var transforms;
 var preTransforms;
@@ -3516,6 +3507,23 @@ var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
 
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
 /**
  * Convert HTML string to AST.
  */
@@ -3523,7 +3531,7 @@ function parse (
   template,
   options
 ) {
-  warn$2 = options.warn || baseWarn;
+  warn$1 = options.warn || baseWarn;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
@@ -3546,7 +3554,7 @@ function parse (
   function warnOnce (msg) {
     if (!warned) {
       warned = true;
-      warn$2(msg);
+      warn$1(msg);
     }
   }
 
@@ -3561,7 +3569,7 @@ function parse (
   }
 
   parseHTML(template, {
-    warn: warn$2,
+    warn: warn$1,
     expectHTML: options.expectHTML,
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
@@ -3578,21 +3586,14 @@ function parse (
         attrs = guardIESVGBug(attrs);
       }
 
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
+      var element = createASTElement(tag, attrs, currentParent);
       if (ns) {
         element.ns = ns;
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true;
-        "development" !== 'production' && warn$2(
+        "development" !== 'production' && warn$1(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
           "<" + tag + ">" + ', as they will not be parsed.'
@@ -3601,7 +3602,7 @@ function parse (
 
       // apply pre-transforms
       for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
+        element = preTransforms[i](element, options) || element;
       }
 
       if (!inVPre) {
@@ -3615,23 +3616,13 @@ function parse (
       }
       if (inVPre) {
         processRawAttrs(element);
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element);
         processIf(element);
         processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
+        // element-scope stuff
+        processElement(element, options);
       }
 
       function checkRootConstraints (el) {
@@ -3689,8 +3680,8 @@ function parse (
         endPre(element);
       }
       // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
       }
     },
 
@@ -3784,11 +3775,27 @@ function processRawAttrs (el) {
   }
 }
 
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
     if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
     }
     el.key = exp;
   }
@@ -3807,7 +3814,7 @@ function processFor (el) {
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
     var inMatch = exp.match(forAliasRE);
     if (!inMatch) {
-      "development" !== 'production' && warn$2(
+      "development" !== 'production' && warn$1(
         ("Invalid v-for expression: " + exp)
       );
       return
@@ -3854,7 +3861,7 @@ function processIfConditions (el, parent) {
       block: el
     });
   } else {
-    warn$2(
+    warn$1(
       "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
       "used on element <" + (el.tag) + "> without corresponding v-if."
     );
@@ -3868,7 +3875,7 @@ function findPrevElement (children) {
       return children[i]
     } else {
       if ("development" !== 'production' && children[i].text !== ' ') {
-        warn$2(
+        warn$1(
           "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
           "will be ignored."
         );
@@ -3896,21 +3903,38 @@ function processSlot (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name');
     if ("development" !== 'production' && el.key) {
-      warn$2(
+      warn$1(
         "`key` does not work on <slot> because slots are abstract outlets " +
         "and can possibly expand into multiple elements. " +
         "Use the key on a wrapping element instead."
       );
     }
   } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if ("development" !== 'production' && slotScope) {
+        warn$1(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget);
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
     }
   }
 }
@@ -3969,7 +3993,7 @@ function processAttrs (el) {
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
+        addHandler(el, name, value, modifiers, false, warn$1);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
@@ -3988,7 +4012,7 @@ function processAttrs (el) {
       {
         var expression = parseText(value, delimiters);
         if (expression) {
-          warn$2(
+          warn$1(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
@@ -4028,60 +4052,326 @@ function makeAttrsMap (attrs) {
       "development" !== 'production' &&
       map[attrs[i].name] && !isIE && !isEdge
     ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
+      warn$1('duplicate attribute: ' + attrs[i].name);
     }
     map[attrs[i].name] = attrs[i].value;
   }
-  return map
-}
-
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
+  return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+  return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+  return (
+    el.tag === 'style' ||
+    (el.tag === 'script' && (
+      !el.attrsMap.type ||
+      el.attrsMap.type === 'text/javascript'
+    ))
+  )
+}
+
+var ieNSBug = /^xmlns:NS\d+/;
+var ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+  var res = [];
+  for (var i = 0; i < attrs.length; i++) {
+    var attr = attrs[i];
+    if (!ieNSBug.test(attr.name)) {
+      attr.name = attr.name.replace(ieNSPrefix, '');
+      res.push(attr);
+    }
+  }
+  return res
+}
+
+function checkForAliasModel (el, value) {
+  var _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$1(
+        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+        "You are binding v-model directly to a v-for iteration alias. " +
+        "This will not be able to modify the v-for source array because " +
+        "writing to the alias is like modifying a function local variable. " +
+        "Consider using an array of objects and use v-model on an object property instead."
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      var typeBinding = getBindingAttr(el, 'type');
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "type==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+var model = {
+  preTransformNode: preTransformNode
+};
+
+var modules$1 = [
+  klass,
+  style,
+  model
+];
+
+/*  */
+
+var warn$2;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+
+function model$1 (
+  el,
+  dir,
+  _warn
+) {
+  warn$2 = _warn;
+  var value = dir.value;
+  var modifiers = dir.modifiers;
+  var tag = el.tag;
+  var type = el.attrsMap.type;
+
+  {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$2(
+        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+        "File inputs are read only. Use a v-on:change listener instead."
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else {
+    warn$2(
+      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+      "v-model is not supported on this element type. " +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.'
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    "Array.isArray(" + value + ")" +
+      "?_i(" + value + "," + valueBinding + ")>-1" + (
+        trueValueBinding === 'true'
+          ? (":(" + value + ")")
+          : (":_q(" + value + "," + trueValueBinding + ")")
+      )
+  );
+  addHandler(el, 'change',
+    "var $$a=" + value + "," +
+        '$$el=$event.target,' +
+        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+    'if(Array.isArray($$a)){' +
+      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+          '$$i=_i($$a,$$v);' +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
+      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+    null, true
+  );
+}
+
+function genRadioModel (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var selectedVal = "Array.prototype.filter" +
+    ".call($event.target.options,function(o){return o.selected})" +
+    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+    "return " + (number ? '_n(val)' : 'val') + "})";
+
+  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  var code = "var $$selectedVal = " + selectedVal + ";";
+  code = code + " " + (genAssignmentCode(value, assignment));
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  var type = el.attrsMap.type;
+  var ref = modifiers || {};
+  var lazy = ref.lazy;
+  var number = ref.number;
+  var trim = ref.trim;
+  var needCompositionGuard = !lazy && type !== 'range';
+  var event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  var valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = "$event.target.value.trim()";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+
+  var code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = "if($event.target.composing)return;" + code;
+  }
 
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
+  addProp(el, 'value', ("(" + value + ")"));
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
 }
 
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
+/*  */
 
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
   }
-  return res
 }
 
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
-    }
-    _el = _el.parent;
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
   }
 }
 
+var directives$1 = {
+  model: model$1,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
 /*  */
 
 var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
@@ -4171,6 +4461,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key);
         }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
       } else {
         keys.push(key);
       }
@@ -4200,8 +4498,13 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var alias = keyCodes[key];
-  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
 }
 
 /*  */
@@ -4439,7 +4742,8 @@ function genData$2 (el, state) {
     data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += "slot:" + (el.slotTarget) + ",";
   }
   // scoped slots
@@ -4497,7 +4801,7 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if ("development" !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.');
   }
@@ -4524,10 +4828,13 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+  var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
-      : genElement(el, state)) + "}}"
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
 }
 
 function genForScopedSlot (
@@ -5211,10 +5518,14 @@ function checkExpression (exp, text, errors) {
     if (keywordMatch) {
       errors.push(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
       );
     } else {
-      errors.push(("invalid expression: " + (text.trim())));
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
     }
   }
 }
@@ -5238,7 +5549,9 @@ function createCompileToFunctionFn (compile) {
     options,
     vm
   ) {
-    options = options || {};
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
 
     /* istanbul ignore if */
     {
@@ -5247,7 +5560,7 @@ function createCompileToFunctionFn (compile) {
         new Function('return 1');
       } catch (e) {
         if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn(
+          warn$$1(
             'It seems you are using the standalone build of Vue.js in an ' +
             'environment with Content Security Policy that prohibits unsafe-eval. ' +
             'The template compiler cannot work in this environment. Consider ' +
@@ -5272,7 +5585,7 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     {
       if (compiled.errors && compiled.errors.length) {
-        warn(
+        warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
           compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
           vm
@@ -5297,7 +5610,7 @@ function createCompileToFunctionFn (compile) {
     /* istanbul ignore if */
     {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn(
+        warn$$1(
           "Failed to generate render function:\n\n" +
           fnGenErrors.map(function (ref) {
             var err = ref.err;
@@ -5428,20 +5741,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -5449,7 +5769,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -5473,7 +5793,7 @@ function installSSRHelpers (vm) {
   while (Ctor.super) {
     Ctor = Ctor.super;
   }
-  Object.assign(Ctor.prototype, {
+  extend(Ctor.prototype, {
     _ssrEscape: escape,
     _ssrNode: renderStringNode$1,
     _ssrList: renderStringList,
@@ -5580,8 +5900,6 @@ function renderSSRStyle (
 
 /* not type checking this file because flow doesn't play well with Proxy */
 
-var initProxy;
-
 {
   var allowedGlobals = makeMap(
     'Infinity,undefined,NaN,isFinite,isNaN,' +
@@ -5590,21 +5908,12 @@ var initProxy;
     'require' // for Webpack/Browserify
   );
 
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
-      target
-    );
-  };
-
   var hasProxy =
     typeof Proxy !== 'undefined' &&
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -5618,61 +5927,11 @@ var initProxy;
     });
   }
 
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
-      if (!has && !isAllowed) {
-        warnNonPresent(target, key);
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
+  
 }
 
-var mark;
-var measure;
-
 {
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
+  
 }
 
 /*  */
@@ -5684,10 +5943,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -5713,11 +5970,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -5726,13 +5978,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -5742,20 +5991,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -5837,7 +6078,10 @@ function checkProp (
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -5970,8 +6214,8 @@ function resolveAsyncComponent (
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -6039,10 +6283,25 @@ function isWhitespace (node) {
   return node.isComment || node.text === ' '
 }
 
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  res
+) {
+  res = res || {};
+  for (var i = 0; i < fns.length; i++) {
+    if (Array.isArray(fns[i])) {
+      resolveScopedSlots(fns[i], res);
+    } else {
+      res[fns[i].key] = fns[i].fn;
+    }
+  }
+  return res
+}
+
 /*  */
 
 var activeInstance = null;
-var isUpdatingChildComponent = false;
+
 
 
 
@@ -6058,7 +6317,7 @@ function updateChildComponent (
   renderChildren
 ) {
   {
-    isUpdatingChildComponent = true;
+    
   }
 
   // determine whether component has slot children
@@ -6111,7 +6370,7 @@ function updateChildComponent (
   }
 
   {
-    isUpdatingChildComponent = false;
+    
   }
 }
 
@@ -6555,34 +6814,6 @@ function _traverse (val, seen) {
 
 /*  */
 
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-
-
-function getData (data, vm) {
-  try {
-    return data.call(vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  }
-}
-
 /*  */
 
 var SIMPLE_NORMALIZE = 1;
@@ -6689,17 +6920,18 @@ function _createElement (
   }
 }
 
-function applyNS (vnode, ns) {
+function applyNS (vnode, ns, force) {
   vnode.ns = ns;
   if (vnode.tag === 'foreignObject') {
     // use default namespace inside foreignObject
-    return
+    ns = undefined;
+    force = true;
   }
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
@@ -6710,45 +6942,265 @@ function applyNS (vnode, ns) {
 /**
  * Runtime helper for rendering v-for lists.
  */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
 
 /*  */
 
 /**
  * Runtime helper for rendering <slot>
  */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if ("development" !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && "development" !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
+      );
+      slotNodes._rendered = true;
+    }
+    return slotNodes || fallback
+  }
+}
 
 /*  */
 
 /**
  * Runtime helper for resolving filters
  */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
 
 /*  */
 
 /**
  * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
  */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
+    }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
 
 /*  */
 
 /**
  * Runtime helper for merging v-bind="object" into a VNode's data.
  */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      "development" !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
 
 /*  */
 
 /**
  * Runtime helper for rendering static trees.
  */
-
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
 
 /**
  * Runtime helper for v-once.
  * Effectively it means marking the node as static with a unique key.
  */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      "development" !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
 
 /*  */
 
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
 /*  */
 
 /*  */
@@ -6770,7 +7222,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -6779,8 +7231,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if ("development" !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -6850,15 +7309,63 @@ function dedupe (latest, extended, sealed) {
 
 /*  */
 
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
 function createFunctionalComponent (
   Ctor,
   propsData,
   data,
-  context,
+  contextVm,
   children
 ) {
+  var options = Ctor.options;
   var props = {};
-  var propOptions = Ctor.options.props;
+  var propOptions = options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
       props[key] = validateProp(key, propOptions, propsData || emptyObject);
@@ -6867,26 +7374,25 @@ function createFunctionalComponent (
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
     if (isDef(data.props)) { mergeProps(props, data.props); }
   }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
   if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
   }
+
   return vnode
 }
 
@@ -7135,6 +7641,11 @@ var warnOnce = function (msg) {
   }
 };
 
+var onCompilationError = function (err, vm) {
+  var trace = vm ? generateComponentTrace(vm) : '';
+  throw new Error(("\n\u001b[31m" + err + trace + "\u001b[39m\n"))
+};
+
 var normalizeRender = function (vm) {
   var ref = vm.$options;
   var render = ref.render;
@@ -7142,9 +7653,13 @@ var normalizeRender = function (vm) {
   var _scopeId = ref._scopeId;
   if (isUndef(render)) {
     if (template) {
-      Object.assign(vm.$options, compileToFunctions(template, {
-        scopeId: _scopeId
-      }));
+      var compiled = compileToFunctions(template, {
+        scopeId: _scopeId,
+        warn: onCompilationError
+      }, vm);
+
+      vm.$options.render = compiled.render;
+      vm.$options.staticRenderFns = compiled.staticRenderFns;
     } else {
       throw new Error(
         ("render function or template not defined in component: " + (vm.$options.name || vm.$options._componentTag || 'anonymous'))
@@ -7454,11 +7969,15 @@ function renderStartingTag (node, context) {
   ) {
     markup += " " + ((scopeId));
   }
-  while (isDef(node)) {
-    if (isDef(scopeId = node.context.$options._scopeId)) {
-      markup += " " + scopeId;
+  if (isDef(node.fnScopeId)) {
+    markup += " " + (node.fnScopeId);
+  } else {
+    while (isDef(node)) {
+      if (isDef(scopeId = node.context.$options._scopeId)) {
+        markup += " " + scopeId;
+      }
+      node = node.parent;
     }
-    node = node.parent;
   }
   return markup + '>'
 }
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index e88cc9e42ef..b01470f3dbf 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -46,8 +46,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -62,20 +69,29 @@ function isPlainObject (obj) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
 /**
  * Convert a value to a string that is actually rendered.
  */
-
+function toString (val) {
+  return val == null
+    ? ''
+    : typeof val === 'object'
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
 
 /**
  * Convert a input value to a number for persistence.
  * If the conversion fails, return original string.
  */
-
+function toNumber (val) {
+  var n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
 
 /**
  * Make a map and return a function for checking if a key
@@ -103,7 +119,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -222,9 +238,45 @@ function genStaticKeys (modules) {
  * Check if two values are loosely equal - that is,
  * if they are plain objects, do they have the same shape?
  */
+function looseEqual (a, b) {
+  if (a === b) { return true }
+  var isObjectA = isObject(a);
+  var isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
 
-
-
+function looseIndexOf (arr, val) {
+  for (var i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) { return i }
+  }
+  return -1
+}
 
 /**
  * Ensure a function is called only once.
@@ -336,7 +388,7 @@ function renderAttrs (node) {
     var parent = node.parent;
     while (isDef(parent)) {
       if (isDef(parent.data) && isDef(parent.data.attrs)) {
-        attrs = Object.assign({}, attrs, parent.data.attrs);
+        attrs = extend(extend({}, attrs), parent.data.attrs);
       }
       parent = parent.parent;
     }
@@ -389,6 +441,8 @@ var VNode = function VNode (
   this.ns = undefined;
   this.context = context;
   this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -404,7 +458,7 @@ var VNode = function VNode (
   this.isAsyncPlaceholder = false;
 };
 
-var prototypeAccessors = { child: {} };
+var prototypeAccessors = { child: { configurable: true } };
 
 // DEPRECATED: alias for componentInstance for backwards compat.
 /* istanbul ignore next */
@@ -431,6 +485,36 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
 
 /*  */
 
@@ -441,7 +525,7 @@ function renderDOMProps (node) {
   var parent = node.parent;
   while (isDef(parent)) {
     if (parent.data && parent.data.domProps) {
-      props = Object.assign({}, props, parent.data.domProps);
+      props = extend(extend({}, props), parent.data.domProps);
     }
     parent = parent.parent;
   }
@@ -482,10 +566,7 @@ var emptyObject = Object.freeze({});
 /**
  * Check if a string starts with $ or _
  */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
+
 
 /**
  * Define a property.
@@ -535,7 +616,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -630,7 +712,8 @@ var config = ({
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -661,15 +744,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -691,7 +772,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -724,23 +805,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -758,14 +866,14 @@ var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
-var supportsPassive = false;
+
 if (inBrowser) {
   try {
     var opts = {};
     Object.defineProperty(opts, 'passive', ({
       get: function get () {
         /* istanbul ignore next */
-        supportsPassive = true;
+        
       }
     })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
@@ -818,45 +926,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -879,6 +982,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -888,7 +992,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -1048,7 +1152,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -1091,7 +1195,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -1115,7 +1219,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1198,7 +1302,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1360,11 +1464,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1377,22 +1489,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1405,7 +1525,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1442,7 +1570,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1466,6 +1594,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if (process.env.NODE_ENV !== 'production' && props) {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1473,13 +1607,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
     }
+  } else if (process.env.NODE_ENV !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1498,6 +1645,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1515,8 +1672,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1680,9 +1837,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -2030,6 +2187,23 @@ var isNonPhrasingTag = makeMap(
 /*  */
 
 var MAX_STACK_DEPTH = 1000;
+var noop$1 = function (_) { return _; };
+
+var defer = typeof process !== 'undefined' && process.nextTick
+  ? process.nextTick
+  : typeof Promise !== 'undefined'
+    ? function (fn) { return Promise.resolve().then(fn); }
+    : typeof setTimeout !== 'undefined'
+      ? setTimeout
+      : noop$1;
+
+if (defer === noop$1) {
+  throw new Error(
+    'Your JavaScript runtime does not support any asynchronous primitives ' +
+    'that are required by vue-server-renderer. Please use a polyfill for ' +
+    'either Promise or setTimeout.'
+  )
+}
 
 function createWriteFunction (
   write,
@@ -2043,7 +2217,7 @@ function createWriteFunction (
     var waitForNext = write(text, next);
     if (waitForNext !== true) {
       if (stackDepth >= MAX_STACK_DEPTH) {
-        process.nextTick(function () {
+        defer(function () {
           try { next(); } catch (e) {
             onError(e);
           }
@@ -2482,7 +2656,15 @@ function getBindingAttr (
   }
 }
 
-function getAndRemoveAttr (el, name) {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
   var val;
   if ((val = el.attrsMap[name]) != null) {
     var list = el.attrsList;
@@ -2493,6 +2675,9 @@ function getAndRemoveAttr (el, name) {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
   return val
 }
 
@@ -2582,427 +2767,83 @@ var style = {
   genData: genData$1
 };
 
-var modules$1 = [
-  klass,
-  style
-];
-
-/*  */
-
 /**
- * Cross-platform code generation for component v-model
+ * Not type-checking this file because it's mostly vendor code.
  */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-  };
-}
 
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
+/*!
+ * HTML Parser By John Resig (ejohn.org)
+ * Modified by Juriy "kangax" Zaytsev
+ * Original code by Erik Arvidsson, Mozilla Public License
+ * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
  */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
-  }
-}
 
-/**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
- *
- * for loop possible cases:
- *
- * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
- *
- */
+// Regular Expressions for parsing tags and attributes
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+// but for Vue templates we can enforce a simple charset
+var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
+var startTagClose = /^\s*(\/?)>/;
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+var doctype = /^<!DOCTYPE [^>]+>/i;
+var comment = /^<!--/;
+var conditionalComment = /^<!\[/;
 
-var len;
-var str;
-var chr;
-var index;
-var expressionPos;
-var expressionEndPos;
+var IS_REGEX_CAPTURING_BROKEN = false;
+'x'.replace(/x(.)?/g, function (m, g) {
+  IS_REGEX_CAPTURING_BROKEN = g === '';
+});
 
-function parseModel (val) {
-  str = val;
-  len = str.length;
-  index = expressionPos = expressionEndPos = 0;
+// Special Elements (can contain anything)
+var isPlainTextElement = makeMap('script,style,textarea', true);
+var reCache = {};
 
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
-    }
-  }
+var decodingMap = {
+  '&lt;': '<',
+  '&gt;': '>',
+  '&quot;': '"',
+  '&amp;': '&',
+  '&#10;': '\n'
+};
+var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
 
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
+// #5992
+var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
 
-  return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
-  }
+function decodeAttr (value, shouldDecodeNewlines) {
+  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+  return value.replace(re, function (match) { return decodingMap[match]; })
 }
 
-function next () {
-  return str.charCodeAt(++index)
-}
+function parseHTML (html, options) {
+  var stack = [];
+  var expectHTML = options.expectHTML;
+  var isUnaryTag$$1 = options.isUnaryTag || no;
+  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+  var index = 0;
+  var last, lastTag;
+  while (html) {
+    last = html;
+    // Make sure we're not in a plaintext content element like script/style
+    if (!lastTag || !isPlainTextElement(lastTag)) {
+      var textEnd = html.indexOf('<');
+      if (textEnd === 0) {
+        // Comment:
+        if (comment.test(html)) {
+          var commentEnd = html.indexOf('-->');
 
-function eof () {
-  return index >= len
-}
-
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index;
-      break
-    }
-  }
-}
-
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
-  }
-}
-
-/*  */
-
-var warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
-
-  if (process.env.NODE_ENV !== 'production') {
-    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (tag === 'input' && dynamicType) {
-      warn$1(
-        "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
-        "v-model does not support dynamic input types. Use v-if branches instead."
-      );
-    }
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
-    }
-  }
-
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$1(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
-
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
-  );
-  addHandler(el, CHECKBOX_RADIO_TOKEN,
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-    el,
-    value,
-    modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-    el,
-    value,
-    modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives = {
-  model: model,
-  text: text,
-  html: html
-};
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
-// Regular Expressions for parsing tags and attributes
-var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-var startTagOpen = new RegExp(("^<" + qnameCapture));
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
-var conditionalComment = /^<!\[/;
-
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) { return decodingMap[match]; })
-}
-
-function parseHTML (html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
-            }
-            advance(commentEnd + 3);
-            continue
-          }
-        }
+          if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd));
+            }
+            advance(commentEnd + 3);
+            continue
+          }
+        }
 
         // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
         if (conditionalComment.test(html)) {
@@ -3214,20 +3055,170 @@ function parseHTML (html, options) {
         }
       }
 
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
-      }
-      if (options.end) {
-        options.end(tagName, start, end);
-      }
+      // Remove the open elements from the stack
+      stack.length = pos;
+      lastTag = pos && stack[pos - 1].tag;
+    } else if (lowerCasedTagName === 'br') {
+      if (options.start) {
+        options.start(tagName, [], true, start, end);
+      }
+    } else if (lowerCasedTagName === 'p') {
+      if (options.start) {
+        options.start(tagName, [], false, start, end);
+      }
+      if (options.end) {
+        options.end(tagName, start, end);
+      }
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  var ref = modifiers || {};
+  var number = ref.number;
+  var trim = ref.trim;
+
+  var baseValueExpression = '$$v';
+  var valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      "(typeof " + baseValueExpression + " === 'string'" +
+        "? " + baseValueExpression + ".trim()" +
+        ": " + baseValueExpression + ")";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+  var assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: ("(" + value + ")"),
+    expression: ("\"" + value + "\""),
+    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  var res = parseModel(value);
+  if (res.key === null) {
+    return (value + "=" + assignment)
+  } else {
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+var len;
+var str;
+var chr;
+var index;
+var expressionPos;
+var expressionEndPos;
+
+
+
+function parseModel (val) {
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index = val.lastIndexOf('.');
+    if (index > -1) {
+      return {
+        exp: val.slice(0, index),
+        key: '"' + val.slice(index + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index)
+}
+
+function eof () {
+  return index >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  var inBracket = 1;
+  expressionPos = index;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) { inBracket++; }
+    if (chr === 0x5D) { inBracket--; }
+    if (inBracket === 0) {
+      expressionEndPos = index;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  var stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
     }
   }
 }
@@ -3246,7 +3237,7 @@ var modifierRE = /\.[^.]+/g;
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
-var warn$2;
+var warn$1;
 var delimiters;
 var transforms;
 var preTransforms;
@@ -3255,6 +3246,23 @@ var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
 
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
 /**
  * Convert HTML string to AST.
  */
@@ -3262,7 +3270,7 @@ function parse (
   template,
   options
 ) {
-  warn$2 = options.warn || baseWarn;
+  warn$1 = options.warn || baseWarn;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
@@ -3285,7 +3293,7 @@ function parse (
   function warnOnce (msg) {
     if (!warned) {
       warned = true;
-      warn$2(msg);
+      warn$1(msg);
     }
   }
 
@@ -3300,7 +3308,7 @@ function parse (
   }
 
   parseHTML(template, {
-    warn: warn$2,
+    warn: warn$1,
     expectHTML: options.expectHTML,
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
@@ -3317,21 +3325,14 @@ function parse (
         attrs = guardIESVGBug(attrs);
       }
 
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
+      var element = createASTElement(tag, attrs, currentParent);
       if (ns) {
         element.ns = ns;
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true;
-        process.env.NODE_ENV !== 'production' && warn$2(
+        process.env.NODE_ENV !== 'production' && warn$1(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
           "<" + tag + ">" + ', as they will not be parsed.'
@@ -3340,7 +3341,7 @@ function parse (
 
       // apply pre-transforms
       for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
+        element = preTransforms[i](element, options) || element;
       }
 
       if (!inVPre) {
@@ -3354,23 +3355,13 @@ function parse (
       }
       if (inVPre) {
         processRawAttrs(element);
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element);
         processIf(element);
         processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
+        // element-scope stuff
+        processElement(element, options);
       }
 
       function checkRootConstraints (el) {
@@ -3428,8 +3419,8 @@ function parse (
         endPre(element);
       }
       // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
       }
     },
 
@@ -3523,11 +3514,27 @@ function processRawAttrs (el) {
   }
 }
 
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
     if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
     }
     el.key = exp;
   }
@@ -3546,7 +3553,7 @@ function processFor (el) {
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
     var inMatch = exp.match(forAliasRE);
     if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn$2(
+      process.env.NODE_ENV !== 'production' && warn$1(
         ("Invalid v-for expression: " + exp)
       );
       return
@@ -3593,7 +3600,7 @@ function processIfConditions (el, parent) {
       block: el
     });
   } else if (process.env.NODE_ENV !== 'production') {
-    warn$2(
+    warn$1(
       "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
       "used on element <" + (el.tag) + "> without corresponding v-if."
     );
@@ -3607,7 +3614,7 @@ function findPrevElement (children) {
       return children[i]
     } else {
       if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
-        warn$2(
+        warn$1(
           "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
           "will be ignored."
         );
@@ -3635,21 +3642,38 @@ function processSlot (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name');
     if (process.env.NODE_ENV !== 'production' && el.key) {
-      warn$2(
+      warn$1(
         "`key` does not work on <slot> because slots are abstract outlets " +
         "and can possibly expand into multiple elements. " +
         "Use the key on a wrapping element instead."
       );
     }
   } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && slotScope) {
+        warn$1(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget);
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
     }
   }
 }
@@ -3708,7 +3732,7 @@ function processAttrs (el) {
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
+        addHandler(el, name, value, modifiers, false, warn$1);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
@@ -3727,7 +3751,7 @@ function processAttrs (el) {
       if (process.env.NODE_ENV !== 'production') {
         var expression = parseText(value, delimiters);
         if (expression) {
-          warn$2(
+          warn$1(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
@@ -3767,7 +3791,7 @@ function makeAttrsMap (attrs) {
       process.env.NODE_ENV !== 'production' &&
       map[attrs[i].name] && !isIE && !isEdge
     ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
+      warn$1('duplicate attribute: ' + attrs[i].name);
     }
     map[attrs[i].name] = attrs[i].value;
   }
@@ -3805,22 +3829,288 @@ function guardIESVGBug (attrs) {
   return res
 }
 
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
-    }
-    _el = _el.parent;
+function checkForAliasModel (el, value) {
+  var _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$1(
+        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+        "You are binding v-model directly to a v-for iteration alias. " +
+        "This will not be able to modify the v-for source array because " +
+        "writing to the alias is like modifying a function local variable. " +
+        "Consider using an array of objects and use v-model on an object property instead."
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      var typeBinding = getBindingAttr(el, 'type');
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "type==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+var model = {
+  preTransformNode: preTransformNode
+};
+
+var modules$1 = [
+  klass,
+  style,
+  model
+];
+
+/*  */
+
+var warn$2;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+
+function model$1 (
+  el,
+  dir,
+  _warn
+) {
+  warn$2 = _warn;
+  var value = dir.value;
+  var modifiers = dir.modifiers;
+  var tag = el.tag;
+  var type = el.attrsMap.type;
+
+  if (process.env.NODE_ENV !== 'production') {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$2(
+        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+        "File inputs are read only. Use a v-on:change listener instead."
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (process.env.NODE_ENV !== 'production') {
+    warn$2(
+      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+      "v-model is not supported on this element type. " +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.'
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    "Array.isArray(" + value + ")" +
+      "?_i(" + value + "," + valueBinding + ")>-1" + (
+        trueValueBinding === 'true'
+          ? (":(" + value + ")")
+          : (":_q(" + value + "," + trueValueBinding + ")")
+      )
+  );
+  addHandler(el, 'change',
+    "var $$a=" + value + "," +
+        '$$el=$event.target,' +
+        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+    'if(Array.isArray($$a)){' +
+      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+          '$$i=_i($$a,$$v);' +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
+      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+    null, true
+  );
+}
+
+function genRadioModel (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var selectedVal = "Array.prototype.filter" +
+    ".call($event.target.options,function(o){return o.selected})" +
+    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+    "return " + (number ? '_n(val)' : 'val') + "})";
+
+  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  var code = "var $$selectedVal = " + selectedVal + ";";
+  code = code + " " + (genAssignmentCode(value, assignment));
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  var type = el.attrsMap.type;
+  var ref = modifiers || {};
+  var lazy = ref.lazy;
+  var number = ref.number;
+  var trim = ref.trim;
+  var needCompositionGuard = !lazy && type !== 'range';
+  var event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  var valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = "$event.target.value.trim()";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+
+  var code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = "if($event.target.composing)return;" + code;
+  }
+
+  addProp(el, 'value', ("(" + value + ")"));
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
   }
 }
 
+var directives = {
+  model: model$1,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
 /*  */
 
 var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
@@ -3910,6 +4200,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key);
         }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
       } else {
         keys.push(key);
       }
@@ -3939,8 +4237,13 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var alias = keyCodes[key];
-  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
 }
 
 /*  */
@@ -4178,7 +4481,8 @@ function genData$2 (el, state) {
     data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += "slot:" + (el.slotTarget) + ",";
   }
   // scoped slots
@@ -4236,7 +4540,7 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if (process.env.NODE_ENV !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.');
   }
@@ -4263,10 +4567,13 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+  var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
-      : genElement(el, state)) + "}}"
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
 }
 
 function genForScopedSlot (
@@ -4950,10 +5257,14 @@ function checkExpression (exp, text, errors) {
     if (keywordMatch) {
       errors.push(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
       );
     } else {
-      errors.push(("invalid expression: " + (text.trim())));
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
     }
   }
 }
@@ -4977,7 +5288,9 @@ function createCompileToFunctionFn (compile) {
     options,
     vm
   ) {
-    options = options || {};
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
 
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
@@ -4986,7 +5299,7 @@ function createCompileToFunctionFn (compile) {
         new Function('return 1');
       } catch (e) {
         if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn(
+          warn$$1(
             'It seems you are using the standalone build of Vue.js in an ' +
             'environment with Content Security Policy that prohibits unsafe-eval. ' +
             'The template compiler cannot work in this environment. Consider ' +
@@ -5011,7 +5324,7 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn(
+        warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
           compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
           vm
@@ -5036,7 +5349,7 @@ function createCompileToFunctionFn (compile) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn(
+        warn$$1(
           "Failed to generate render function:\n\n" +
           fnGenErrors.map(function (ref) {
             var err = ref.err;
@@ -5167,20 +5480,27 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
-    if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+    if (Array.isArray(c) && c.length > 0) {
+      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+      // merge adjacent text nodes
+      if (isTextNode(c[0]) && isTextNode(last)) {
+        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+        c.shift();
+      }
+      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -5188,7 +5508,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -5212,7 +5532,7 @@ function installSSRHelpers (vm) {
   while (Ctor.super) {
     Ctor = Ctor.super;
   }
-  Object.assign(Ctor.prototype, {
+  extend(Ctor.prototype, {
     _ssrEscape: escape,
     _ssrNode: renderStringNode$1,
     _ssrList: renderStringList,
@@ -5319,8 +5639,6 @@ function renderSSRStyle (
 
 /* not type checking this file because flow doesn't play well with Proxy */
 
-var initProxy;
-
 if (process.env.NODE_ENV !== 'production') {
   var allowedGlobals = makeMap(
     'Infinity,undefined,NaN,isFinite,isNaN,' +
@@ -5329,21 +5647,12 @@ if (process.env.NODE_ENV !== 'production') {
     'require' // for Webpack/Browserify
   );
 
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
-      target
-    );
-  };
-
   var hasProxy =
     typeof Proxy !== 'undefined' &&
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -5357,61 +5666,7 @@ if (process.env.NODE_ENV !== 'production') {
     });
   }
 
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
-      if (!has && !isAllowed) {
-        warnNonPresent(target, key);
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-var mark;
-var measure;
-
-if (process.env.NODE_ENV !== 'production') {
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
+  
 }
 
 /*  */
@@ -5423,10 +5678,8 @@ var normalizeEvent = cached(function (name) {
   name = once$$1 ? name.slice(1) : name;
   var capture = name.charAt(0) === '!';
   name = capture ? name.slice(1) : name;
-  var plain = !(passive || once$$1 || capture);
   return {
     name: name,
-    plain: plain,
     once: once$$1,
     capture: capture,
     passive: passive
@@ -5452,11 +5705,6 @@ function createFnInvoker (fns) {
   return invoker
 }
 
-// #6552
-function prioritizePlainEvents (a, b) {
-  return a.plain ? -1 : b.plain ? 1 : 0
-}
-
 function updateListeners (
   on,
   oldOn,
@@ -5465,13 +5713,10 @@ function updateListeners (
   vm
 ) {
   var name, cur, old, event;
-  var toAdd = [];
-  var hasModifier = false;
   for (name in on) {
     cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    if (!event.plain) { hasModifier = true; }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -5481,20 +5726,12 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      event.handler = cur;
-      toAdd.push(event);
+      add(event.name, cur, event.once, event.capture, event.passive);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
     }
   }
-  if (toAdd.length) {
-    if (hasModifier) { toAdd.sort(prioritizePlainEvents); }
-    for (var i = 0; i < toAdd.length; i++) {
-      var event$1 = toAdd[i];
-      add(event$1.name, event$1.handler, event$1.once, event$1.capture, event$1.passive);
-    }
-  }
   for (name in oldOn) {
     if (isUndef(on[name])) {
       event = normalizeEvent(name);
@@ -5576,7 +5813,10 @@ function checkProp (
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -5711,8 +5951,8 @@ function resolveAsyncComponent (
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -5780,10 +6020,25 @@ function isWhitespace (node) {
   return node.isComment || node.text === ' '
 }
 
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  res
+) {
+  res = res || {};
+  for (var i = 0; i < fns.length; i++) {
+    if (Array.isArray(fns[i])) {
+      resolveScopedSlots(fns[i], res);
+    } else {
+      res[fns[i].key] = fns[i].fn;
+    }
+  }
+  return res
+}
+
 /*  */
 
 var activeInstance = null;
-var isUpdatingChildComponent = false;
+
 
 
 
@@ -5798,12 +6053,6 @@ function updateChildComponent (
   parentVnode,
   renderChildren
 ) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
   var hasChildren = !!(
     renderChildren ||               // has new static slots
     vm.$options._renderChildren ||  // has old static slots
@@ -5851,9 +6100,7 @@ function updateChildComponent (
     vm.$forceUpdate();
   }
 
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
-  }
+  
 }
 
 function isInInactiveTree (vm) {
@@ -6298,34 +6545,6 @@ function _traverse (val, seen) {
 
 /*  */
 
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-
-
-function getData (data, vm) {
-  try {
-    return data.call(vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  }
-}
-
 /*  */
 
 var SIMPLE_NORMALIZE = 1;
@@ -6432,17 +6651,18 @@ function _createElement (
   }
 }
 
-function applyNS (vnode, ns) {
+function applyNS (vnode, ns, force) {
   vnode.ns = ns;
   if (vnode.tag === 'foreignObject') {
     // use default namespace inside foreignObject
-    return
+    ns = undefined;
+    force = true;
   }
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
@@ -6453,45 +6673,265 @@ function applyNS (vnode, ns) {
 /**
  * Runtime helper for rendering v-for lists.
  */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
 
 /*  */
 
 /**
  * Runtime helper for rendering <slot>
  */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && process.env.NODE_ENV !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
+      );
+      slotNodes._rendered = true;
+    }
+    return slotNodes || fallback
+  }
+}
 
 /*  */
 
 /**
  * Runtime helper for resolving filters
  */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
 
 /*  */
 
 /**
  * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
  */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
+    }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
 
 /*  */
 
 /**
  * Runtime helper for merging v-bind="object" into a VNode's data.
  */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
 
 /*  */
 
 /**
  * Runtime helper for rendering static trees.
  */
-
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
 
 /**
  * Runtime helper for v-once.
  * Effectively it means marking the node as static with a unique key.
  */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(ours, existing) : ours;
+      }
+    }
+  }
+  return data
+}
 
 /*  */
 
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
 /*  */
 
 /*  */
@@ -6513,7 +6953,7 @@ function resolveInject (inject, vm) {
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -6522,8 +6962,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -6593,15 +7040,63 @@ function dedupe (latest, extended, sealed) {
 
 /*  */
 
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
 function createFunctionalComponent (
   Ctor,
   propsData,
   data,
-  context,
+  contextVm,
   children
 ) {
+  var options = Ctor.options;
   var props = {};
-  var propOptions = Ctor.options.props;
+  var propOptions = options.props;
   if (isDef(propOptions)) {
     for (var key in propOptions) {
       props[key] = validateProp(key, propOptions, propsData || emptyObject);
@@ -6610,26 +7105,25 @@ function createFunctionalComponent (
     if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
     if (isDef(data.props)) { mergeProps(props, data.props); }
   }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || emptyObject,
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
   if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
   }
+
   return vnode
 }
 
@@ -6878,6 +7372,11 @@ var warnOnce = function (msg) {
   }
 };
 
+var onCompilationError = function (err, vm) {
+  var trace = vm ? generateComponentTrace(vm) : '';
+  throw new Error(("\n\u001b[31m" + err + trace + "\u001b[39m\n"))
+};
+
 var normalizeRender = function (vm) {
   var ref = vm.$options;
   var render = ref.render;
@@ -6885,9 +7384,13 @@ var normalizeRender = function (vm) {
   var _scopeId = ref._scopeId;
   if (isUndef(render)) {
     if (template) {
-      Object.assign(vm.$options, compileToFunctions(template, {
-        scopeId: _scopeId
-      }));
+      var compiled = compileToFunctions(template, {
+        scopeId: _scopeId,
+        warn: onCompilationError
+      }, vm);
+
+      vm.$options.render = compiled.render;
+      vm.$options.staticRenderFns = compiled.staticRenderFns;
     } else {
       throw new Error(
         ("render function or template not defined in component: " + (vm.$options.name || vm.$options._componentTag || 'anonymous'))
@@ -7197,11 +7700,15 @@ function renderStartingTag (node, context) {
   ) {
     markup += " " + ((scopeId));
   }
-  while (isDef(node)) {
-    if (isDef(scopeId = node.context.$options._scopeId)) {
-      markup += " " + scopeId;
+  if (isDef(node.fnScopeId)) {
+    markup += " " + (node.fnScopeId);
+  } else {
+    while (isDef(node)) {
+      if (isDef(scopeId = node.context.$options._scopeId)) {
+        markup += " " + scopeId;
+      }
+      node = node.parent;
     }
-    node = node.parent;
   }
   return markup + '>'
 }
@@ -7238,6 +7745,19 @@ var isJS = function (file) { return /\.js(\?[^.]+)?$/.test(file); };
 
 var isCSS = function (file) { return /\.css(\?[^.]+)?$/.test(file); };
 
+function createPromiseCallback () {
+  var resolve, reject;
+  var promise = new Promise(function (_resolve, _reject) {
+    resolve = _resolve;
+    reject = _reject;
+  });
+  var cb = function (err, res) {
+    if (err) { return reject(err) }
+    resolve(res || '');
+  };
+  return { promise: promise, cb: cb }
+}
+
 /*  */
 
 var Transform = require('stream').Transform;
@@ -7435,8 +7955,8 @@ var TemplateRenderer = function TemplateRenderer (options) {
     var clientManifest = this.clientManifest = options.clientManifest;
     this.publicPath = clientManifest.publicPath.replace(/\/$/, '');
     // preload/prefetch directives
-    this.preloadFiles = clientManifest.initial;
-    this.prefetchFiles = clientManifest.async;
+    this.preloadFiles = (clientManifest.initial || []).map(normalizeFile);
+    this.prefetchFiles = (clientManifest.async || []).map(normalizeFile);
     // initial async chunk mapping
     this.mapFiles = createMapper(clientManifest);
   }
@@ -7503,16 +8023,7 @@ TemplateRenderer.prototype.renderResourceHints = function renderResourceHints (c
 TemplateRenderer.prototype.getPreloadFiles = function getPreloadFiles (context) {
   var usedAsyncFiles = this.getUsedAsyncFiles(context);
   if (this.preloadFiles || usedAsyncFiles) {
-    return (this.preloadFiles || []).concat(usedAsyncFiles || []).map(function (file) {
-      var withoutQuery = file.replace(/\?.*/, '');
-      var extension = path.extname(withoutQuery).slice(1);
-      return {
-        file: file,
-        extension: extension,
-        fileWithoutQuery: withoutQuery,
-        asType: getPreloadType(extension)
-      }
-    })
+    return (this.preloadFiles || []).concat(usedAsyncFiles || [])
   } else {
     return []
   }
@@ -7522,6 +8033,7 @@ TemplateRenderer.prototype.renderPreloadLinks = function renderPreloadLinks (con
     var this$1 = this;
 
   var files = this.getPreloadFiles(context);
+  var shouldPreload = this.options.shouldPreload;
   if (files.length) {
     return files.map(function (ref) {
         var file = ref.file;
@@ -7530,7 +8042,6 @@ TemplateRenderer.prototype.renderPreloadLinks = function renderPreloadLinks (con
         var asType = ref.asType;
 
       var extra = '';
-      var shouldPreload = this$1.options.shouldPreload;
       // by default, we only preload scripts or css
       if (!shouldPreload && asType !== 'script' && asType !== 'style') {
         return ''
@@ -7552,17 +8063,24 @@ TemplateRenderer.prototype.renderPreloadLinks = function renderPreloadLinks (con
 TemplateRenderer.prototype.renderPrefetchLinks = function renderPrefetchLinks (context) {
     var this$1 = this;
 
+  var shouldPrefetch = this.options.shouldPrefetch;
   if (this.prefetchFiles) {
     var usedAsyncFiles = this.getUsedAsyncFiles(context);
     var alreadyRendered = function (file) {
-      return usedAsyncFiles && usedAsyncFiles.some(function (f) { return f === file; })
+      return usedAsyncFiles && usedAsyncFiles.some(function (f) { return f.file === file; })
     };
-    return this.prefetchFiles.map(function (file) {
-      if (!alreadyRendered(file)) {
-        return ("<link rel=\"prefetch\" href=\"" + (this$1.publicPath) + "/" + file + "\">")
-      } else {
+    return this.prefetchFiles.map(function (ref) {
+        var file = ref.file;
+        var fileWithoutQuery = ref.fileWithoutQuery;
+        var asType = ref.asType;
+
+      if (shouldPrefetch && !shouldPrefetch(fileWithoutQuery, asType)) {
+        return ''
+      }
+      if (alreadyRendered(file)) {
         return ''
       }
+      return ("<link rel=\"prefetch\" href=\"" + (this$1.publicPath) + "/" + file + "\">")
     }).join('')
   } else {
     return ''
@@ -7573,8 +8091,11 @@ TemplateRenderer.prototype.renderState = function renderState (context, options)
   var ref = options || {};
     var contextKey = ref.contextKey; if ( contextKey === void 0 ) contextKey = 'state';
     var windowKey = ref.windowKey; if ( windowKey === void 0 ) windowKey = '__INITIAL_STATE__';
+  var autoRemove = process.env.NODE_ENV === 'production'
+    ? '(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
+    : '';
   return context[contextKey]
-    ? ("<script>window." + windowKey + "=" + (serialize(context[contextKey], { isJSON: true })) + "</script>")
+    ? ("<script>window." + windowKey + "=" + (serialize(context[contextKey], { isJSON: true })) + autoRemove + "</script>")
     : ''
 };
 
@@ -7582,10 +8103,16 @@ TemplateRenderer.prototype.renderScripts = function renderScripts (context) {
     var this$1 = this;
 
   if (this.clientManifest) {
-    var initial = this.clientManifest.initial;
+    var initial = this.preloadFiles;
     var async = this.getUsedAsyncFiles(context);
     var needed = [initial[0]].concat(async || [], initial.slice(1));
-    return needed.filter(isJS).map(function (file) {
+    return needed.filter(function (ref) {
+        var file = ref.file;
+
+        return isJS(file);
+      }).map(function (ref) {
+        var file = ref.file;
+
       return ("<script src=\"" + (this$1.publicPath) + "/" + file + "\" defer></script>")
     }).join('')
   } else {
@@ -7595,7 +8122,8 @@ TemplateRenderer.prototype.renderScripts = function renderScripts (context) {
 
 TemplateRenderer.prototype.getUsedAsyncFiles = function getUsedAsyncFiles (context) {
   if (!context._mappedFiles && context._registeredComponents && this.mapFiles) {
-    context._mappedFiles = this.mapFiles(Array.from(context._registeredComponents));
+    var registered = Array.from(context._registeredComponents);
+    context._mappedFiles = this.mapFiles(registered).map(normalizeFile);
   }
   return context._mappedFiles
 };
@@ -7608,6 +8136,17 @@ TemplateRenderer.prototype.createStream = function createStream (context) {
   return new TemplateStream(this, this.parsedTemplate, context || {})
 };
 
+function normalizeFile (file) {
+  var withoutQuery = file.replace(/\?.*/, '');
+  var extension = path.extname(withoutQuery).slice(1);
+  return {
+    file: file,
+    extension: extension,
+    fileWithoutQuery: withoutQuery,
+    asType: getPreloadType(extension)
+  }
+}
+
 function getPreloadType (ext) {
   if (ext === 'js') {
     return 'script'
@@ -7634,6 +8173,7 @@ function createRenderer$1 (ref) {
   var inject = ref.inject;
   var cache = ref.cache;
   var shouldPreload = ref.shouldPreload;
+  var shouldPrefetch = ref.shouldPrefetch;
   var clientManifest = ref.clientManifest;
 
   var render = createRenderFunction(modules, directives, isUnaryTag, cache);
@@ -7641,6 +8181,7 @@ function createRenderer$1 (ref) {
     template: template,
     inject: inject,
     shouldPreload: shouldPreload,
+    shouldPrefetch: shouldPrefetch,
     clientManifest: clientManifest
   });
 
@@ -7648,30 +8189,40 @@ function createRenderer$1 (ref) {
     renderToString: function renderToString (
       component,
       context,
-      done
+      cb
     ) {
       if (typeof context === 'function') {
-        done = context;
+        cb = context;
         context = {};
       }
       if (context) {
         templateRenderer.bindRenderFns(context);
       }
+
+      // no callback, return Promise
+      var promise;
+      if (!cb) {
+        var assign;
+        ((assign = createPromiseCallback(), promise = assign.promise, cb = assign.cb));
+      }
+
       var result = '';
       var write = createWriteFunction(function (text) {
         result += text;
         return false
-      }, done);
+      }, cb);
       try {
         render(component, write, context, function () {
           if (template) {
             result = templateRenderer.renderSync(result, context);
           }
-          done(null, result);
+          cb(null, result);
         });
       } catch (e) {
-        done(e);
+        cb(e);
       }
+
+      return promise
     },
 
     renderToStream: function renderToStream (
@@ -7981,6 +8532,13 @@ function createBundleRendererCreator (
           cb = context;
           context = {};
         }
+
+        var promise;
+        if (!cb) {
+          var assign;
+          ((assign = createPromiseCallback(), promise = assign.promise, cb = assign.cb));
+        }
+
         run(context).catch(function (err) {
           rewriteErrorTrace(err, maps);
           cb(err);
@@ -7992,6 +8550,8 @@ function createBundleRendererCreator (
             });
           }
         });
+
+        return promise
       },
 
       renderToStream: function (context) {
@@ -8036,20 +8596,20 @@ function createBundleRendererCreator (
 
 process.env.VUE_ENV = 'server';
 
-function createRenderer (options) {
+function createRenderer$$1 (options) {
   if ( options === void 0 ) options = {};
 
-  return createRenderer$1(Object.assign({}, options, {
+  return createRenderer$1(extend(extend({}, options), {
     isUnaryTag: isUnaryTag,
     canBeLeftOpenTag: canBeLeftOpenTag,
     modules: modules,
     // user can provide server-side implementations for custom directives
     // when creating the renderer.
-    directives: Object.assign(baseDirectives, options.directives)
+    directives: extend(baseDirectives, options.directives)
   }))
 }
 
-var createBundleRenderer = createBundleRendererCreator(createRenderer);
+var createBundleRenderer = createBundleRendererCreator(createRenderer$$1);
 
-exports.createRenderer = createRenderer;
+exports.createRenderer = createRenderer$$1;
 exports.createBundleRenderer = createBundleRenderer;
diff --git a/packages/vue-server-renderer/package-lock.json b/packages/vue-server-renderer/package-lock.json
index 1b25d2eaedd..f8ab4e7e8da 100644
--- a/packages/vue-server-renderer/package-lock.json
+++ b/packages/vue-server-renderer/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.4.4",
+  "version": "2.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 39250cef341..264cdf83e1b 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.4.4",
+  "version": "2.5.0",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
new file mode 100644
index 00000000000..bb7ae9dcb13
--- /dev/null
+++ b/packages/vue-template-compiler/browser.js
@@ -0,0 +1,5141 @@
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+	typeof define === 'function' && define.amd ? define(['exports'], factory) :
+	(factory((global.VueTemplateCompiler = {})));
+}(this, (function (exports) { 'use strict';
+
+var splitRE$1 = /\r?\n/g;
+var emptyRE = /^\s*$/;
+var needFixRE = /^(\r?\n)*[\t\s]/;
+
+var deIndent = function deindent (str) {
+  if (!needFixRE.test(str)) {
+    return str
+  }
+  var lines = str.split(splitRE$1);
+  var min = Infinity;
+  var type, cur, c;
+  for (var i = 0; i < lines.length; i++) {
+    var line = lines[i];
+    if (!emptyRE.test(line)) {
+      if (!type) {
+        c = line.charAt(0);
+        if (c === ' ' || c === '\t') {
+          type = c;
+          cur = count(line, type);
+          if (cur < min) {
+            min = cur;
+          }
+        } else {
+          return str
+        }
+      } else {
+        cur = count(line, type);
+        if (cur < min) {
+          min = cur;
+        }
+      }
+    }
+  }
+  return lines.map(function (line) {
+    return line.slice(min)
+  }).join('\n')
+};
+
+function count (line, type) {
+  var i = 0;
+  while (line.charAt(i) === type) {
+    i++;
+  }
+  return i
+}
+
+/*  */
+
+// these helpers produces better vm code in JS engines due to their
+// explicitness and function inlining
+
+
+
+
+
+
+
+
+/**
+ * Check if value is primitive
+ */
+
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
+var _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+
+
+/**
+ * Convert a input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  var map = Object.create(null);
+  var list = str.split(',');
+  for (var i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? function (val) { return map[val.toLowerCase()]; }
+    : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if a attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    var index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether the object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  var cache = Object.create(null);
+  return (function cachedFn (str) {
+    var hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind, faster than native
+ */
+
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (var key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/**
+ * Return same value
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Generate a static keys string from compiler modules.
+ */
+function genStaticKeys (modules) {
+  return modules.reduce(function (keys, m) {
+    return keys.concat(m.staticKeys || [])
+  }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+
+
+
+
+/**
+ * Ensure a function is called only once.
+ */
+
+/*  */
+
+var isUnaryTag = makeMap(
+  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+  'link,meta,param,source,track,wbr'
+);
+
+// Elements that you can, intentionally, leave open
+// (and which close themselves)
+var canBeLeftOpenTag = makeMap(
+  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+);
+
+// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+var isNonPhrasingTag = makeMap(
+  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+  'title,tr,track'
+);
+
+/**
+ * Not type-checking this file because it's mostly vendor code.
+ */
+
+/*!
+ * HTML Parser By John Resig (ejohn.org)
+ * Modified by Juriy "kangax" Zaytsev
+ * Original code by Erik Arvidsson, Mozilla Public License
+ * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
+ */
+
+// Regular Expressions for parsing tags and attributes
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+// but for Vue templates we can enforce a simple charset
+var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
+var startTagClose = /^\s*(\/?)>/;
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+var doctype = /^<!DOCTYPE [^>]+>/i;
+var comment = /^<!--/;
+var conditionalComment = /^<!\[/;
+
+var IS_REGEX_CAPTURING_BROKEN = false;
+'x'.replace(/x(.)?/g, function (m, g) {
+  IS_REGEX_CAPTURING_BROKEN = g === '';
+});
+
+// Special Elements (can contain anything)
+var isPlainTextElement = makeMap('script,style,textarea', true);
+var reCache = {};
+
+var decodingMap = {
+  '&lt;': '<',
+  '&gt;': '>',
+  '&quot;': '"',
+  '&amp;': '&',
+  '&#10;': '\n'
+};
+var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+
+// #5992
+var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+function decodeAttr (value, shouldDecodeNewlines) {
+  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+  return value.replace(re, function (match) { return decodingMap[match]; })
+}
+
+function parseHTML (html, options) {
+  var stack = [];
+  var expectHTML = options.expectHTML;
+  var isUnaryTag$$1 = options.isUnaryTag || no;
+  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+  var index = 0;
+  var last, lastTag;
+  while (html) {
+    last = html;
+    // Make sure we're not in a plaintext content element like script/style
+    if (!lastTag || !isPlainTextElement(lastTag)) {
+      var textEnd = html.indexOf('<');
+      if (textEnd === 0) {
+        // Comment:
+        if (comment.test(html)) {
+          var commentEnd = html.indexOf('-->');
+
+          if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd));
+            }
+            advance(commentEnd + 3);
+            continue
+          }
+        }
+
+        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+        if (conditionalComment.test(html)) {
+          var conditionalEnd = html.indexOf(']>');
+
+          if (conditionalEnd >= 0) {
+            advance(conditionalEnd + 2);
+            continue
+          }
+        }
+
+        // Doctype:
+        var doctypeMatch = html.match(doctype);
+        if (doctypeMatch) {
+          advance(doctypeMatch[0].length);
+          continue
+        }
+
+        // End tag:
+        var endTagMatch = html.match(endTag);
+        if (endTagMatch) {
+          var curIndex = index;
+          advance(endTagMatch[0].length);
+          parseEndTag(endTagMatch[1], curIndex, index);
+          continue
+        }
+
+        // Start tag:
+        var startTagMatch = parseStartTag();
+        if (startTagMatch) {
+          handleStartTag(startTagMatch);
+          if (shouldIgnoreFirstNewline(lastTag, html)) {
+            advance(1);
+          }
+          continue
+        }
+      }
+
+      var text = (void 0), rest = (void 0), next = (void 0);
+      if (textEnd >= 0) {
+        rest = html.slice(textEnd);
+        while (
+          !endTag.test(rest) &&
+          !startTagOpen.test(rest) &&
+          !comment.test(rest) &&
+          !conditionalComment.test(rest)
+        ) {
+          // < in plain text, be forgiving and treat it as text
+          next = rest.indexOf('<', 1);
+          if (next < 0) { break }
+          textEnd += next;
+          rest = html.slice(textEnd);
+        }
+        text = html.substring(0, textEnd);
+        advance(textEnd);
+      }
+
+      if (textEnd < 0) {
+        text = html;
+        html = '';
+      }
+
+      if (options.chars && text) {
+        options.chars(text);
+      }
+    } else {
+      var endTagLength = 0;
+      var stackedTag = lastTag.toLowerCase();
+      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+        endTagLength = endTag.length;
+        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+          text = text
+            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+        }
+        if (shouldIgnoreFirstNewline(stackedTag, text)) {
+          text = text.slice(1);
+        }
+        if (options.chars) {
+          options.chars(text);
+        }
+        return ''
+      });
+      index += html.length - rest$1.length;
+      html = rest$1;
+      parseEndTag(stackedTag, index - endTagLength, index);
+    }
+
+    if (html === last) {
+      options.chars && options.chars(html);
+      if ("development" !== 'production' && !stack.length && options.warn) {
+        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+      }
+      break
+    }
+  }
+
+  // Clean up any remaining tags
+  parseEndTag();
+
+  function advance (n) {
+    index += n;
+    html = html.substring(n);
+  }
+
+  function parseStartTag () {
+    var start = html.match(startTagOpen);
+    if (start) {
+      var match = {
+        tagName: start[1],
+        attrs: [],
+        start: index
+      };
+      advance(start[0].length);
+      var end, attr;
+      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        advance(attr[0].length);
+        match.attrs.push(attr);
+      }
+      if (end) {
+        match.unarySlash = end[1];
+        advance(end[0].length);
+        match.end = index;
+        return match
+      }
+    }
+  }
+
+  function handleStartTag (match) {
+    var tagName = match.tagName;
+    var unarySlash = match.unarySlash;
+
+    if (expectHTML) {
+      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+        parseEndTag(lastTag);
+      }
+      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+        parseEndTag(tagName);
+      }
+    }
+
+    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+    var l = match.attrs.length;
+    var attrs = new Array(l);
+    for (var i = 0; i < l; i++) {
+      var args = match.attrs[i];
+      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
+      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
+        if (args[3] === '') { delete args[3]; }
+        if (args[4] === '') { delete args[4]; }
+        if (args[5] === '') { delete args[5]; }
+      }
+      var value = args[3] || args[4] || args[5] || '';
+      attrs[i] = {
+        name: args[1],
+        value: decodeAttr(
+          value,
+          options.shouldDecodeNewlines
+        )
+      };
+    }
+
+    if (!unary) {
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+      lastTag = tagName;
+    }
+
+    if (options.start) {
+      options.start(tagName, attrs, unary, match.start, match.end);
+    }
+  }
+
+  function parseEndTag (tagName, start, end) {
+    var pos, lowerCasedTagName;
+    if (start == null) { start = index; }
+    if (end == null) { end = index; }
+
+    if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
+    }
+
+    // Find the closest opened tag of the same type
+    if (tagName) {
+      for (pos = stack.length - 1; pos >= 0; pos--) {
+        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+          break
+        }
+      }
+    } else {
+      // If no tag name is provided, clean shop
+      pos = 0;
+    }
+
+    if (pos >= 0) {
+      // Close all the open elements, up the stack
+      for (var i = stack.length - 1; i >= pos; i--) {
+        if ("development" !== 'production' &&
+          (i > pos || !tagName) &&
+          options.warn
+        ) {
+          options.warn(
+            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+          );
+        }
+        if (options.end) {
+          options.end(stack[i].tag, start, end);
+        }
+      }
+
+      // Remove the open elements from the stack
+      stack.length = pos;
+      lastTag = pos && stack[pos - 1].tag;
+    } else if (lowerCasedTagName === 'br') {
+      if (options.start) {
+        options.start(tagName, [], true, start, end);
+      }
+    } else if (lowerCasedTagName === 'p') {
+      if (options.start) {
+        options.start(tagName, [], false, start, end);
+      }
+      if (options.end) {
+        options.end(tagName, start, end);
+      }
+    }
+  }
+}
+
+/*  */
+
+var splitRE = /\r?\n/g;
+var replaceRE = /./g;
+var isSpecialTag = makeMap('script,style,template', true);
+
+
+
+/**
+ * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
+ */
+function parseComponent (
+  content,
+  options
+ ) {
+  if ( options === void 0 ) options = {};
+
+  var sfc = {
+    template: null,
+    script: null,
+    styles: [],
+    customBlocks: []
+  };
+  var depth = 0;
+  var currentBlock = null;
+
+  function start (
+    tag,
+    attrs,
+    unary,
+    start,
+    end
+  ) {
+    if (depth === 0) {
+      currentBlock = {
+        type: tag,
+        content: '',
+        start: end,
+        attrs: attrs.reduce(function (cumulated, ref) {
+          var name = ref.name;
+          var value = ref.value;
+
+          cumulated[name] = value || true;
+          return cumulated
+        }, Object.create(null))
+      };
+      if (isSpecialTag(tag)) {
+        checkAttrs(currentBlock, attrs);
+        if (tag === 'style') {
+          sfc.styles.push(currentBlock);
+        } else {
+          sfc[tag] = currentBlock;
+        }
+      } else { // custom blocks
+        sfc.customBlocks.push(currentBlock);
+      }
+    }
+    if (!unary) {
+      depth++;
+    }
+  }
+
+  function checkAttrs (block, attrs) {
+    for (var i = 0; i < attrs.length; i++) {
+      var attr = attrs[i];
+      if (attr.name === 'lang') {
+        block.lang = attr.value;
+      }
+      if (attr.name === 'scoped') {
+        block.scoped = true;
+      }
+      if (attr.name === 'module') {
+        block.module = attr.value || true;
+      }
+      if (attr.name === 'src') {
+        block.src = attr.value;
+      }
+    }
+  }
+
+  function end (tag, start, end) {
+    if (depth === 1 && currentBlock) {
+      currentBlock.end = start;
+      var text = deIndent(content.slice(currentBlock.start, currentBlock.end));
+      // pad content so that linters and pre-processors can output correct
+      // line numbers in errors and warnings
+      if (currentBlock.type !== 'template' && options.pad) {
+        text = padContent(currentBlock, options.pad) + text;
+      }
+      currentBlock.content = text;
+      currentBlock = null;
+    }
+    depth--;
+  }
+
+  function padContent (block, pad) {
+    if (pad === 'space') {
+      return content.slice(0, block.start).replace(replaceRE, ' ')
+    } else {
+      var offset = content.slice(0, block.start).split(splitRE).length;
+      var padChar = block.type === 'script' && !block.lang
+        ? '//\n'
+        : '\n';
+      return Array(offset).join(padChar)
+    }
+  }
+
+  parseHTML(content, {
+    start: start,
+    end: end
+  });
+
+  return sfc
+}
+
+/*  */
+
+var emptyObject = Object.freeze({});
+
+/**
+ * Check if a string starts with $ or _
+ */
+
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured'
+];
+
+/*  */
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/*  */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+{
+  var hasConsole = typeof console !== 'undefined';
+  var classifyRE = /(?:^|[-_])(\w)/g;
+  var classify = function (str) { return str
+    .replace(classifyRE, function (c) { return c.toUpperCase(); })
+    .replace(/[-_]/g, ''); };
+
+  warn = function (msg, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
+    }
+  };
+
+  tip = function (msg, vm) {
+    if (hasConsole && (!config.silent)) {
+      console.warn("[Vue tip]: " + msg + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = function (vm, includeFile) {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
+    if (!name && file) {
+      var match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+      (file && includeFile !== false ? (" at " + file) : '')
+    )
+  };
+
+  var repeat = function (str, n) {
+    var res = '';
+    while (n) {
+      if (n % 2 === 1) { res += str; }
+      if (n > 1) { str += str; }
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = function (vm) {
+    if (vm._isVue && vm.$parent) {
+      var tree = [];
+      var currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          var last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+            : formatComponentName(vm))); })
+        .join('\n')
+    } else {
+      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+    }
+  };
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+/**
+ * Defer a task to execute it asynchronously.
+ */
+var nextTick = (function () {
+  var callbacks = [];
+  var pending = false;
+  var timerFunc;
+
+  function nextTickHandler () {
+    pending = false;
+    var copies = callbacks.slice(0);
+    callbacks.length = 0;
+    for (var i = 0; i < copies.length; i++) {
+      copies[i]();
+    }
+  }
+
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
+  /* istanbul ignore if */
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+    timerFunc = function () {
+      setImmediate(nextTickHandler);
+    };
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
+  )) {
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
+    timerFunc = function () {
+      p.then(nextTickHandler);
+    };
+  } else {
+    // fallback to setTimeout
+    timerFunc = function () {
+      setTimeout(nextTickHandler, 0);
+    };
+  }
+
+  return function queueNextTick (cb, ctx) {
+    var _resolve;
+    callbacks.push(function () {
+      if (cb) {
+        try {
+          cb.call(ctx);
+        } catch (e) {
+          handleError(e, ctx, 'nextTick');
+        }
+      } else if (_resolve) {
+        _resolve(ctx);
+      }
+    });
+    if (!pending) {
+      pending = true;
+      timerFunc();
+    }
+    // $flow-disable-line
+    if (!cb && typeof Promise !== 'undefined') {
+      return new Promise(function (resolve, reject) {
+        _resolve = resolve;
+      })
+    }
+  }
+})();
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+  this.id = uid++;
+  this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+  this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+  remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+  if (Dep.target) {
+    Dep.target.addDep(this);
+  }
+};
+
+Dep.prototype.notify = function notify () {
+  // stabilize the subscriber list first
+  var subs = this.subs.slice();
+  for (var i = 0, l = subs.length; i < l; i++) {
+    subs[i].update();
+  }
+};
+
+// the current target watcher being evaluated.
+// this is globally unique because there could be only one
+// watcher being evaluated at any time.
+Dep.target = null;
+
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+
+
+
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);[
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+]
+.forEach(function (method) {
+  // cache original method
+  var original = arrayProto[method];
+  def(arrayMethods, method, function mutator () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    var result = original.apply(this, args);
+    var ob = this.__ob__;
+    var inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) { ob.observeArray(inserted); }
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * By default, when a reactive property is set, the new value is
+ * also converted to become reactive. However when passing down props,
+ * we don't want to force conversion because the value may be a nested value
+ * under a frozen data structure. Converting it would defeat the optimization.
+ */
+var observerState = {
+  shouldConvert: true
+};
+
+/**
+ * Observer class that are attached to each observed
+ * object. Once attached, the observer converts target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatches updates.
+ */
+var Observer = function Observer (value) {
+  this.value = value;
+  this.dep = new Dep();
+  this.vmCount = 0;
+  def(value, '__ob__', this);
+  if (Array.isArray(value)) {
+    var augment = hasProto
+      ? protoAugment
+      : copyAugment;
+    augment(value, arrayMethods, arrayKeys);
+    this.observeArray(value);
+  } else {
+    this.walk(value);
+  }
+};
+
+/**
+ * Walk through each property and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+  var keys = Object.keys(obj);
+  for (var i = 0; i < keys.length; i++) {
+    defineReactive(obj, keys[i], obj[keys[i]]);
+  }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+  for (var i = 0, l = items.length; i < l; i++) {
+    observe(items[i]);
+  }
+};
+
+// helpers
+
+/**
+ * Augment an target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src, keys) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment an target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (var i = 0, l = keys.length; i < l; i++) {
+    var key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  var ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    observerState.shouldConvert &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  var dep = new Dep();
+
+  var property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  var getter = property && property.get;
+  var setter = property && property.set;
+
+  var childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      var value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      var value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if ("development" !== 'production' && customSetter) {
+        customSetter();
+      }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (hasOwn(target, key)) {
+    target[key] = val;
+    return val
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    "development" !== 'production' && warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        "option \"" + key + "\" can only be used during instance " +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) { return to }
+  var key, toVal, fromVal;
+  var keys = Object.keys(from);
+  for (var i = 0; i < keys.length; i++) {
+    key = keys[i];
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+      )
+    }
+  } else if (parentVal || childVal) {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      var instanceData = typeof childVal === 'function'
+        ? childVal.call(vm)
+        : childVal;
+      var defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      "development" !== 'production' && warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn.call(this, parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  return childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  var res = Object.create(parentVal || null);
+  if (childVal) {
+    "development" !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
+  /* istanbul ignore if */
+  if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = {};
+  extend(ret, parentVal);
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key$1] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) { extend(ret, childVal); }
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+/*  */
+
+/*  */
+
+
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+var isPreTag = function (tag) { return tag === 'pre'; };
+
+var isReservedTag = function (tag) {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+
+/*  */
+
+var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+function parseFilters (exp) {
+  var inSingle = false;
+  var inDouble = false;
+  var inTemplateString = false;
+  var inRegex = false;
+  var curly = 0;
+  var square = 0;
+  var paren = 0;
+  var lastFilterIndex = 0;
+  var c, prev, i, expression, filters;
+
+  for (i = 0; i < exp.length; i++) {
+    prev = c;
+    c = exp.charCodeAt(i);
+    if (inSingle) {
+      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+    } else if (inDouble) {
+      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+    } else if (inTemplateString) {
+      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+    } else if (inRegex) {
+      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+    } else if (
+      c === 0x7C && // pipe
+      exp.charCodeAt(i + 1) !== 0x7C &&
+      exp.charCodeAt(i - 1) !== 0x7C &&
+      !curly && !square && !paren
+    ) {
+      if (expression === undefined) {
+        // first filter, end of expression
+        lastFilterIndex = i + 1;
+        expression = exp.slice(0, i).trim();
+      } else {
+        pushFilter();
+      }
+    } else {
+      switch (c) {
+        case 0x22: inDouble = true; break         // "
+        case 0x27: inSingle = true; break         // '
+        case 0x60: inTemplateString = true; break // `
+        case 0x28: paren++; break                 // (
+        case 0x29: paren--; break                 // )
+        case 0x5B: square++; break                // [
+        case 0x5D: square--; break                // ]
+        case 0x7B: curly++; break                 // {
+        case 0x7D: curly--; break                 // }
+      }
+      if (c === 0x2f) { // /
+        var j = i - 1;
+        var p = (void 0);
+        // find first non-whitespace prev char
+        for (; j >= 0; j--) {
+          p = exp.charAt(j);
+          if (p !== ' ') { break }
+        }
+        if (!p || !validDivisionCharRE.test(p)) {
+          inRegex = true;
+        }
+      }
+    }
+  }
+
+  if (expression === undefined) {
+    expression = exp.slice(0, i).trim();
+  } else if (lastFilterIndex !== 0) {
+    pushFilter();
+  }
+
+  function pushFilter () {
+    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+    lastFilterIndex = i + 1;
+  }
+
+  if (filters) {
+    for (i = 0; i < filters.length; i++) {
+      expression = wrapFilter(expression, filters[i]);
+    }
+  }
+
+  return expression
+}
+
+function wrapFilter (exp, filter) {
+  var i = filter.indexOf('(');
+  if (i < 0) {
+    // _f: resolveFilter
+    return ("_f(\"" + filter + "\")(" + exp + ")")
+  } else {
+    var name = filter.slice(0, i);
+    var args = filter.slice(i + 1);
+    return ("_f(\"" + name + "\")(" + exp + "," + args)
+  }
+}
+
+/*  */
+
+var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+var buildRegex = cached(function (delimiters) {
+  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+});
+
+function parseText (
+  text,
+  delimiters
+) {
+  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+  if (!tagRE.test(text)) {
+    return
+  }
+  var tokens = [];
+  var lastIndex = tagRE.lastIndex = 0;
+  var match, index;
+  while ((match = tagRE.exec(text))) {
+    index = match.index;
+    // push text token
+    if (index > lastIndex) {
+      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+    }
+    // tag token
+    var exp = parseFilters(match[1].trim());
+    tokens.push(("_s(" + exp + ")"));
+    lastIndex = index + match[0].length;
+  }
+  if (lastIndex < text.length) {
+    tokens.push(JSON.stringify(text.slice(lastIndex)));
+  }
+  return tokens.join('+')
+}
+
+/*  */
+
+function baseWarn (msg) {
+  console.error(("[Vue compiler]: " + msg));
+}
+
+function pluckModuleFunction (
+  modules,
+  key
+) {
+  return modules
+    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+    : []
+}
+
+function addProp (el, name, value) {
+  (el.props || (el.props = [])).push({ name: name, value: value });
+}
+
+function addAttr (el, name, value) {
+  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+}
+
+function addDirective (
+  el,
+  name,
+  rawName,
+  value,
+  arg,
+  modifiers
+) {
+  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+}
+
+function addHandler (
+  el,
+  name,
+  value,
+  modifiers,
+  important,
+  warn
+) {
+  // warn prevent and passive modifier
+  /* istanbul ignore if */
+  if (
+    "development" !== 'production' && warn &&
+    modifiers && modifiers.prevent && modifiers.passive
+  ) {
+    warn(
+      'passive and prevent can\'t be used together. ' +
+      'Passive handler can\'t prevent default event.'
+    );
+  }
+  // check capture modifier
+  if (modifiers && modifiers.capture) {
+    delete modifiers.capture;
+    name = '!' + name; // mark the event as captured
+  }
+  if (modifiers && modifiers.once) {
+    delete modifiers.once;
+    name = '~' + name; // mark the event as once
+  }
+  /* istanbul ignore if */
+  if (modifiers && modifiers.passive) {
+    delete modifiers.passive;
+    name = '&' + name; // mark the event as passive
+  }
+  var events;
+  if (modifiers && modifiers.native) {
+    delete modifiers.native;
+    events = el.nativeEvents || (el.nativeEvents = {});
+  } else {
+    events = el.events || (el.events = {});
+  }
+  var newHandler = { value: value, modifiers: modifiers };
+  var handlers = events[name];
+  /* istanbul ignore if */
+  if (Array.isArray(handlers)) {
+    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+  } else if (handlers) {
+    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+  } else {
+    events[name] = newHandler;
+  }
+}
+
+function getBindingAttr (
+  el,
+  name,
+  getStatic
+) {
+  var dynamicValue =
+    getAndRemoveAttr(el, ':' + name) ||
+    getAndRemoveAttr(el, 'v-bind:' + name);
+  if (dynamicValue != null) {
+    return parseFilters(dynamicValue)
+  } else if (getStatic !== false) {
+    var staticValue = getAndRemoveAttr(el, name);
+    if (staticValue != null) {
+      return JSON.stringify(staticValue)
+    }
+  }
+}
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
+  var val;
+  if ((val = el.attrsMap[name]) != null) {
+    var list = el.attrsList;
+    for (var i = 0, l = list.length; i < l; i++) {
+      if (list[i].name === name) {
+        list.splice(i, 1);
+        break
+      }
+    }
+  }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
+  return val
+}
+
+/*  */
+
+function transformNode (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticClass = getAndRemoveAttr(el, 'class');
+  if ("development" !== 'production' && staticClass) {
+    var expression = parseText(staticClass, options.delimiters);
+    if (expression) {
+      warn(
+        "class=\"" + staticClass + "\": " +
+        'Interpolation inside attributes has been removed. ' +
+        'Use v-bind or the colon shorthand instead. For example, ' +
+        'instead of <div class="{{ val }}">, use <div :class="val">.'
+      );
+    }
+  }
+  if (staticClass) {
+    el.staticClass = JSON.stringify(staticClass);
+  }
+  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+  if (classBinding) {
+    el.classBinding = classBinding;
+  }
+}
+
+function genData (el) {
+  var data = '';
+  if (el.staticClass) {
+    data += "staticClass:" + (el.staticClass) + ",";
+  }
+  if (el.classBinding) {
+    data += "class:" + (el.classBinding) + ",";
+  }
+  return data
+}
+
+var klass = {
+  staticKeys: ['staticClass'],
+  transformNode: transformNode,
+  genData: genData
+};
+
+/*  */
+
+var parseStyleText = cached(function (cssText) {
+  var res = {};
+  var listDelimiter = /;(?![^(]*\))/g;
+  var propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      var tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// normalize possible array / string values into Object
+
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+
+/*  */
+
+function transformNode$1 (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticStyle = getAndRemoveAttr(el, 'style');
+  if (staticStyle) {
+    /* istanbul ignore if */
+    {
+      var expression = parseText(staticStyle, options.delimiters);
+      if (expression) {
+        warn(
+          "style=\"" + staticStyle + "\": " +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div style="{{ val }}">, use <div :style="val">.'
+        );
+      }
+    }
+    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+  }
+
+  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+  if (styleBinding) {
+    el.styleBinding = styleBinding;
+  }
+}
+
+function genData$1 (el) {
+  var data = '';
+  if (el.staticStyle) {
+    data += "staticStyle:" + (el.staticStyle) + ",";
+  }
+  if (el.styleBinding) {
+    data += "style:(" + (el.styleBinding) + "),";
+  }
+  return data
+}
+
+var style = {
+  staticKeys: ['staticStyle'],
+  transformNode: transformNode$1,
+  genData: genData$1
+};
+
+var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+
+
+
+
+function createCommonjsModule(fn, module) {
+	return module = { exports: {} }, fn(module, module.exports), module.exports;
+}
+
+var he = createCommonjsModule(function (module, exports) {
+/*! https://mths.be/he v1.1.1 by @mathias | MIT license */
+(function(root) {
+
+	// Detect free variables `exports`.
+	var freeExports = 'object' == 'object' && exports;
+
+	// Detect free variable `module`.
+	var freeModule = 'object' == 'object' && module &&
+		module.exports == freeExports && module;
+
+	// Detect free variable `global`, from Node.js or Browserified code,
+	// and use it as `root`.
+	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
+	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+		root = freeGlobal;
+	}
+
+	/*--------------------------------------------------------------------------*/
+
+	// All astral symbols.
+	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+	// All ASCII symbols (not just printable ASCII) except those listed in the
+	// first column of the overrides table.
+	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
+	var regexAsciiWhitelist = /[\x01-\x7F]/g;
+	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
+	// code points listed in the first column of the overrides table on
+	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
+	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
+
+	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
+	var encodeMap = {'\xAD':'shy','\u200C':'zwnj','\u200D':'zwj','\u200E':'lrm','\u2063':'ic','\u2062':'it','\u2061':'af','\u200F':'rlm','\u200B':'ZeroWidthSpace','\u2060':'NoBreak','\u0311':'DownBreve','\u20DB':'tdot','\u20DC':'DotDot','\t':'Tab','\n':'NewLine','\u2008':'puncsp','\u205F':'MediumSpace','\u2009':'thinsp','\u200A':'hairsp','\u2004':'emsp13','\u2002':'ensp','\u2005':'emsp14','\u2003':'emsp','\u2007':'numsp','\xA0':'nbsp','\u205F\u200A':'ThickSpace','\u203E':'oline','_':'lowbar','\u2010':'dash','\u2013':'ndash','\u2014':'mdash','\u2015':'horbar',',':'comma',';':'semi','\u204F':'bsemi',':':'colon','\u2A74':'Colone','!':'excl','\xA1':'iexcl','?':'quest','\xBF':'iquest','.':'period','\u2025':'nldr','\u2026':'mldr','\xB7':'middot','\'':'apos','\u2018':'lsquo','\u2019':'rsquo','\u201A':'sbquo','\u2039':'lsaquo','\u203A':'rsaquo','"':'quot','\u201C':'ldquo','\u201D':'rdquo','\u201E':'bdquo','\xAB':'laquo','\xBB':'raquo','(':'lpar',')':'rpar','[':'lsqb',']':'rsqb','{':'lcub','}':'rcub','\u2308':'lceil','\u2309':'rceil','\u230A':'lfloor','\u230B':'rfloor','\u2985':'lopar','\u2986':'ropar','\u298B':'lbrke','\u298C':'rbrke','\u298D':'lbrkslu','\u298E':'rbrksld','\u298F':'lbrksld','\u2990':'rbrkslu','\u2991':'langd','\u2992':'rangd','\u2993':'lparlt','\u2994':'rpargt','\u2995':'gtlPar','\u2996':'ltrPar','\u27E6':'lobrk','\u27E7':'robrk','\u27E8':'lang','\u27E9':'rang','\u27EA':'Lang','\u27EB':'Rang','\u27EC':'loang','\u27ED':'roang','\u2772':'lbbrk','\u2773':'rbbrk','\u2016':'Vert','\xA7':'sect','\xB6':'para','@':'commat','*':'ast','/':'sol','undefined':null,'&':'amp','#':'num','%':'percnt','\u2030':'permil','\u2031':'pertenk','\u2020':'dagger','\u2021':'Dagger','\u2022':'bull','\u2043':'hybull','\u2032':'prime','\u2033':'Prime','\u2034':'tprime','\u2057':'qprime','\u2035':'bprime','\u2041':'caret','`':'grave','\xB4':'acute','\u02DC':'tilde','^':'Hat','\xAF':'macr','\u02D8':'breve','\u02D9':'dot','\xA8':'die','\u02DA':'ring','\u02DD':'dblac','\xB8':'cedil','\u02DB':'ogon','\u02C6':'circ','\u02C7':'caron','\xB0':'deg','\xA9':'copy','\xAE':'reg','\u2117':'copysr','\u2118':'wp','\u211E':'rx','\u2127':'mho','\u2129':'iiota','\u2190':'larr','\u219A':'nlarr','\u2192':'rarr','\u219B':'nrarr','\u2191':'uarr','\u2193':'darr','\u2194':'harr','\u21AE':'nharr','\u2195':'varr','\u2196':'nwarr','\u2197':'nearr','\u2198':'searr','\u2199':'swarr','\u219D':'rarrw','\u219D\u0338':'nrarrw','\u219E':'Larr','\u219F':'Uarr','\u21A0':'Rarr','\u21A1':'Darr','\u21A2':'larrtl','\u21A3':'rarrtl','\u21A4':'mapstoleft','\u21A5':'mapstoup','\u21A6':'map','\u21A7':'mapstodown','\u21A9':'larrhk','\u21AA':'rarrhk','\u21AB':'larrlp','\u21AC':'rarrlp','\u21AD':'harrw','\u21B0':'lsh','\u21B1':'rsh','\u21B2':'ldsh','\u21B3':'rdsh','\u21B5':'crarr','\u21B6':'cularr','\u21B7':'curarr','\u21BA':'olarr','\u21BB':'orarr','\u21BC':'lharu','\u21BD':'lhard','\u21BE':'uharr','\u21BF':'uharl','\u21C0':'rharu','\u21C1':'rhard','\u21C2':'dharr','\u21C3':'dharl','\u21C4':'rlarr','\u21C5':'udarr','\u21C6':'lrarr','\u21C7':'llarr','\u21C8':'uuarr','\u21C9':'rrarr','\u21CA':'ddarr','\u21CB':'lrhar','\u21CC':'rlhar','\u21D0':'lArr','\u21CD':'nlArr','\u21D1':'uArr','\u21D2':'rArr','\u21CF':'nrArr','\u21D3':'dArr','\u21D4':'iff','\u21CE':'nhArr','\u21D5':'vArr','\u21D6':'nwArr','\u21D7':'neArr','\u21D8':'seArr','\u21D9':'swArr','\u21DA':'lAarr','\u21DB':'rAarr','\u21DD':'zigrarr','\u21E4':'larrb','\u21E5':'rarrb','\u21F5':'duarr','\u21FD':'loarr','\u21FE':'roarr','\u21FF':'hoarr','\u2200':'forall','\u2201':'comp','\u2202':'part','\u2202\u0338':'npart','\u2203':'exist','\u2204':'nexist','\u2205':'empty','\u2207':'Del','\u2208':'in','\u2209':'notin','\u220B':'ni','\u220C':'notni','\u03F6':'bepsi','\u220F':'prod','\u2210':'coprod','\u2211':'sum','+':'plus','\xB1':'pm','\xF7':'div','\xD7':'times','<':'lt','\u226E':'nlt','<\u20D2':'nvlt','=':'equals','\u2260':'ne','=\u20E5':'bne','\u2A75':'Equal','>':'gt','\u226F':'ngt','>\u20D2':'nvgt','\xAC':'not','|':'vert','\xA6':'brvbar','\u2212':'minus','\u2213':'mp','\u2214':'plusdo','\u2044':'frasl','\u2216':'setmn','\u2217':'lowast','\u2218':'compfn','\u221A':'Sqrt','\u221D':'prop','\u221E':'infin','\u221F':'angrt','\u2220':'ang','\u2220\u20D2':'nang','\u2221':'angmsd','\u2222':'angsph','\u2223':'mid','\u2224':'nmid','\u2225':'par','\u2226':'npar','\u2227':'and','\u2228':'or','\u2229':'cap','\u2229\uFE00':'caps','\u222A':'cup','\u222A\uFE00':'cups','\u222B':'int','\u222C':'Int','\u222D':'tint','\u2A0C':'qint','\u222E':'oint','\u222F':'Conint','\u2230':'Cconint','\u2231':'cwint','\u2232':'cwconint','\u2233':'awconint','\u2234':'there4','\u2235':'becaus','\u2236':'ratio','\u2237':'Colon','\u2238':'minusd','\u223A':'mDDot','\u223B':'homtht','\u223C':'sim','\u2241':'nsim','\u223C\u20D2':'nvsim','\u223D':'bsim','\u223D\u0331':'race','\u223E':'ac','\u223E\u0333':'acE','\u223F':'acd','\u2240':'wr','\u2242':'esim','\u2242\u0338':'nesim','\u2243':'sime','\u2244':'nsime','\u2245':'cong','\u2247':'ncong','\u2246':'simne','\u2248':'ap','\u2249':'nap','\u224A':'ape','\u224B':'apid','\u224B\u0338':'napid','\u224C':'bcong','\u224D':'CupCap','\u226D':'NotCupCap','\u224D\u20D2':'nvap','\u224E':'bump','\u224E\u0338':'nbump','\u224F':'bumpe','\u224F\u0338':'nbumpe','\u2250':'doteq','\u2250\u0338':'nedot','\u2251':'eDot','\u2252':'efDot','\u2253':'erDot','\u2254':'colone','\u2255':'ecolon','\u2256':'ecir','\u2257':'cire','\u2259':'wedgeq','\u225A':'veeeq','\u225C':'trie','\u225F':'equest','\u2261':'equiv','\u2262':'nequiv','\u2261\u20E5':'bnequiv','\u2264':'le','\u2270':'nle','\u2264\u20D2':'nvle','\u2265':'ge','\u2271':'nge','\u2265\u20D2':'nvge','\u2266':'lE','\u2266\u0338':'nlE','\u2267':'gE','\u2267\u0338':'ngE','\u2268\uFE00':'lvnE','\u2268':'lnE','\u2269':'gnE','\u2269\uFE00':'gvnE','\u226A':'ll','\u226A\u0338':'nLtv','\u226A\u20D2':'nLt','\u226B':'gg','\u226B\u0338':'nGtv','\u226B\u20D2':'nGt','\u226C':'twixt','\u2272':'lsim','\u2274':'nlsim','\u2273':'gsim','\u2275':'ngsim','\u2276':'lg','\u2278':'ntlg','\u2277':'gl','\u2279':'ntgl','\u227A':'pr','\u2280':'npr','\u227B':'sc','\u2281':'nsc','\u227C':'prcue','\u22E0':'nprcue','\u227D':'sccue','\u22E1':'nsccue','\u227E':'prsim','\u227F':'scsim','\u227F\u0338':'NotSucceedsTilde','\u2282':'sub','\u2284':'nsub','\u2282\u20D2':'vnsub','\u2283':'sup','\u2285':'nsup','\u2283\u20D2':'vnsup','\u2286':'sube','\u2288':'nsube','\u2287':'supe','\u2289':'nsupe','\u228A\uFE00':'vsubne','\u228A':'subne','\u228B\uFE00':'vsupne','\u228B':'supne','\u228D':'cupdot','\u228E':'uplus','\u228F':'sqsub','\u228F\u0338':'NotSquareSubset','\u2290':'sqsup','\u2290\u0338':'NotSquareSuperset','\u2291':'sqsube','\u22E2':'nsqsube','\u2292':'sqsupe','\u22E3':'nsqsupe','\u2293':'sqcap','\u2293\uFE00':'sqcaps','\u2294':'sqcup','\u2294\uFE00':'sqcups','\u2295':'oplus','\u2296':'ominus','\u2297':'otimes','\u2298':'osol','\u2299':'odot','\u229A':'ocir','\u229B':'oast','\u229D':'odash','\u229E':'plusb','\u229F':'minusb','\u22A0':'timesb','\u22A1':'sdotb','\u22A2':'vdash','\u22AC':'nvdash','\u22A3':'dashv','\u22A4':'top','\u22A5':'bot','\u22A7':'models','\u22A8':'vDash','\u22AD':'nvDash','\u22A9':'Vdash','\u22AE':'nVdash','\u22AA':'Vvdash','\u22AB':'VDash','\u22AF':'nVDash','\u22B0':'prurel','\u22B2':'vltri','\u22EA':'nltri','\u22B3':'vrtri','\u22EB':'nrtri','\u22B4':'ltrie','\u22EC':'nltrie','\u22B4\u20D2':'nvltrie','\u22B5':'rtrie','\u22ED':'nrtrie','\u22B5\u20D2':'nvrtrie','\u22B6':'origof','\u22B7':'imof','\u22B8':'mumap','\u22B9':'hercon','\u22BA':'intcal','\u22BB':'veebar','\u22BD':'barvee','\u22BE':'angrtvb','\u22BF':'lrtri','\u22C0':'Wedge','\u22C1':'Vee','\u22C2':'xcap','\u22C3':'xcup','\u22C4':'diam','\u22C5':'sdot','\u22C6':'Star','\u22C7':'divonx','\u22C8':'bowtie','\u22C9':'ltimes','\u22CA':'rtimes','\u22CB':'lthree','\u22CC':'rthree','\u22CD':'bsime','\u22CE':'cuvee','\u22CF':'cuwed','\u22D0':'Sub','\u22D1':'Sup','\u22D2':'Cap','\u22D3':'Cup','\u22D4':'fork','\u22D5':'epar','\u22D6':'ltdot','\u22D7':'gtdot','\u22D8':'Ll','\u22D8\u0338':'nLl','\u22D9':'Gg','\u22D9\u0338':'nGg','\u22DA\uFE00':'lesg','\u22DA':'leg','\u22DB':'gel','\u22DB\uFE00':'gesl','\u22DE':'cuepr','\u22DF':'cuesc','\u22E6':'lnsim','\u22E7':'gnsim','\u22E8':'prnsim','\u22E9':'scnsim','\u22EE':'vellip','\u22EF':'ctdot','\u22F0':'utdot','\u22F1':'dtdot','\u22F2':'disin','\u22F3':'isinsv','\u22F4':'isins','\u22F5':'isindot','\u22F5\u0338':'notindot','\u22F6':'notinvc','\u22F7':'notinvb','\u22F9':'isinE','\u22F9\u0338':'notinE','\u22FA':'nisd','\u22FB':'xnis','\u22FC':'nis','\u22FD':'notnivc','\u22FE':'notnivb','\u2305':'barwed','\u2306':'Barwed','\u230C':'drcrop','\u230D':'dlcrop','\u230E':'urcrop','\u230F':'ulcrop','\u2310':'bnot','\u2312':'profline','\u2313':'profsurf','\u2315':'telrec','\u2316':'target','\u231C':'ulcorn','\u231D':'urcorn','\u231E':'dlcorn','\u231F':'drcorn','\u2322':'frown','\u2323':'smile','\u232D':'cylcty','\u232E':'profalar','\u2336':'topbot','\u233D':'ovbar','\u233F':'solbar','\u237C':'angzarr','\u23B0':'lmoust','\u23B1':'rmoust','\u23B4':'tbrk','\u23B5':'bbrk','\u23B6':'bbrktbrk','\u23DC':'OverParenthesis','\u23DD':'UnderParenthesis','\u23DE':'OverBrace','\u23DF':'UnderBrace','\u23E2':'trpezium','\u23E7':'elinters','\u2423':'blank','\u2500':'boxh','\u2502':'boxv','\u250C':'boxdr','\u2510':'boxdl','\u2514':'boxur','\u2518':'boxul','\u251C':'boxvr','\u2524':'boxvl','\u252C':'boxhd','\u2534':'boxhu','\u253C':'boxvh','\u2550':'boxH','\u2551':'boxV','\u2552':'boxdR','\u2553':'boxDr','\u2554':'boxDR','\u2555':'boxdL','\u2556':'boxDl','\u2557':'boxDL','\u2558':'boxuR','\u2559':'boxUr','\u255A':'boxUR','\u255B':'boxuL','\u255C':'boxUl','\u255D':'boxUL','\u255E':'boxvR','\u255F':'boxVr','\u2560':'boxVR','\u2561':'boxvL','\u2562':'boxVl','\u2563':'boxVL','\u2564':'boxHd','\u2565':'boxhD','\u2566':'boxHD','\u2567':'boxHu','\u2568':'boxhU','\u2569':'boxHU','\u256A':'boxvH','\u256B':'boxVh','\u256C':'boxVH','\u2580':'uhblk','\u2584':'lhblk','\u2588':'block','\u2591':'blk14','\u2592':'blk12','\u2593':'blk34','\u25A1':'squ','\u25AA':'squf','\u25AB':'EmptyVerySmallSquare','\u25AD':'rect','\u25AE':'marker','\u25B1':'fltns','\u25B3':'xutri','\u25B4':'utrif','\u25B5':'utri','\u25B8':'rtrif','\u25B9':'rtri','\u25BD':'xdtri','\u25BE':'dtrif','\u25BF':'dtri','\u25C2':'ltrif','\u25C3':'ltri','\u25CA':'loz','\u25CB':'cir','\u25EC':'tridot','\u25EF':'xcirc','\u25F8':'ultri','\u25F9':'urtri','\u25FA':'lltri','\u25FB':'EmptySmallSquare','\u25FC':'FilledSmallSquare','\u2605':'starf','\u2606':'star','\u260E':'phone','\u2640':'female','\u2642':'male','\u2660':'spades','\u2663':'clubs','\u2665':'hearts','\u2666':'diams','\u266A':'sung','\u2713':'check','\u2717':'cross','\u2720':'malt','\u2736':'sext','\u2758':'VerticalSeparator','\u27C8':'bsolhsub','\u27C9':'suphsol','\u27F5':'xlarr','\u27F6':'xrarr','\u27F7':'xharr','\u27F8':'xlArr','\u27F9':'xrArr','\u27FA':'xhArr','\u27FC':'xmap','\u27FF':'dzigrarr','\u2902':'nvlArr','\u2903':'nvrArr','\u2904':'nvHarr','\u2905':'Map','\u290C':'lbarr','\u290D':'rbarr','\u290E':'lBarr','\u290F':'rBarr','\u2910':'RBarr','\u2911':'DDotrahd','\u2912':'UpArrowBar','\u2913':'DownArrowBar','\u2916':'Rarrtl','\u2919':'latail','\u291A':'ratail','\u291B':'lAtail','\u291C':'rAtail','\u291D':'larrfs','\u291E':'rarrfs','\u291F':'larrbfs','\u2920':'rarrbfs','\u2923':'nwarhk','\u2924':'nearhk','\u2925':'searhk','\u2926':'swarhk','\u2927':'nwnear','\u2928':'toea','\u2929':'tosa','\u292A':'swnwar','\u2933':'rarrc','\u2933\u0338':'nrarrc','\u2935':'cudarrr','\u2936':'ldca','\u2937':'rdca','\u2938':'cudarrl','\u2939':'larrpl','\u293C':'curarrm','\u293D':'cularrp','\u2945':'rarrpl','\u2948':'harrcir','\u2949':'Uarrocir','\u294A':'lurdshar','\u294B':'ldrushar','\u294E':'LeftRightVector','\u294F':'RightUpDownVector','\u2950':'DownLeftRightVector','\u2951':'LeftUpDownVector','\u2952':'LeftVectorBar','\u2953':'RightVectorBar','\u2954':'RightUpVectorBar','\u2955':'RightDownVectorBar','\u2956':'DownLeftVectorBar','\u2957':'DownRightVectorBar','\u2958':'LeftUpVectorBar','\u2959':'LeftDownVectorBar','\u295A':'LeftTeeVector','\u295B':'RightTeeVector','\u295C':'RightUpTeeVector','\u295D':'RightDownTeeVector','\u295E':'DownLeftTeeVector','\u295F':'DownRightTeeVector','\u2960':'LeftUpTeeVector','\u2961':'LeftDownTeeVector','\u2962':'lHar','\u2963':'uHar','\u2964':'rHar','\u2965':'dHar','\u2966':'luruhar','\u2967':'ldrdhar','\u2968':'ruluhar','\u2969':'rdldhar','\u296A':'lharul','\u296B':'llhard','\u296C':'rharul','\u296D':'lrhard','\u296E':'udhar','\u296F':'duhar','\u2970':'RoundImplies','\u2971':'erarr','\u2972':'simrarr','\u2973':'larrsim','\u2974':'rarrsim','\u2975':'rarrap','\u2976':'ltlarr','\u2978':'gtrarr','\u2979':'subrarr','\u297B':'suplarr','\u297C':'lfisht','\u297D':'rfisht','\u297E':'ufisht','\u297F':'dfisht','\u299A':'vzigzag','\u299C':'vangrt','\u299D':'angrtvbd','\u29A4':'ange','\u29A5':'range','\u29A6':'dwangle','\u29A7':'uwangle','\u29A8':'angmsdaa','\u29A9':'angmsdab','\u29AA':'angmsdac','\u29AB':'angmsdad','\u29AC':'angmsdae','\u29AD':'angmsdaf','\u29AE':'angmsdag','\u29AF':'angmsdah','\u29B0':'bemptyv','\u29B1':'demptyv','\u29B2':'cemptyv','\u29B3':'raemptyv','\u29B4':'laemptyv','\u29B5':'ohbar','\u29B6':'omid','\u29B7':'opar','\u29B9':'operp','\u29BB':'olcross','\u29BC':'odsold','\u29BE':'olcir','\u29BF':'ofcir','\u29C0':'olt','\u29C1':'ogt','\u29C2':'cirscir','\u29C3':'cirE','\u29C4':'solb','\u29C5':'bsolb','\u29C9':'boxbox','\u29CD':'trisb','\u29CE':'rtriltri','\u29CF':'LeftTriangleBar','\u29CF\u0338':'NotLeftTriangleBar','\u29D0':'RightTriangleBar','\u29D0\u0338':'NotRightTriangleBar','\u29DC':'iinfin','\u29DD':'infintie','\u29DE':'nvinfin','\u29E3':'eparsl','\u29E4':'smeparsl','\u29E5':'eqvparsl','\u29EB':'lozf','\u29F4':'RuleDelayed','\u29F6':'dsol','\u2A00':'xodot','\u2A01':'xoplus','\u2A02':'xotime','\u2A04':'xuplus','\u2A06':'xsqcup','\u2A0D':'fpartint','\u2A10':'cirfnint','\u2A11':'awint','\u2A12':'rppolint','\u2A13':'scpolint','\u2A14':'npolint','\u2A15':'pointint','\u2A16':'quatint','\u2A17':'intlarhk','\u2A22':'pluscir','\u2A23':'plusacir','\u2A24':'simplus','\u2A25':'plusdu','\u2A26':'plussim','\u2A27':'plustwo','\u2A29':'mcomma','\u2A2A':'minusdu','\u2A2D':'loplus','\u2A2E':'roplus','\u2A2F':'Cross','\u2A30':'timesd','\u2A31':'timesbar','\u2A33':'smashp','\u2A34':'lotimes','\u2A35':'rotimes','\u2A36':'otimesas','\u2A37':'Otimes','\u2A38':'odiv','\u2A39':'triplus','\u2A3A':'triminus','\u2A3B':'tritime','\u2A3C':'iprod','\u2A3F':'amalg','\u2A40':'capdot','\u2A42':'ncup','\u2A43':'ncap','\u2A44':'capand','\u2A45':'cupor','\u2A46':'cupcap','\u2A47':'capcup','\u2A48':'cupbrcap','\u2A49':'capbrcup','\u2A4A':'cupcup','\u2A4B':'capcap','\u2A4C':'ccups','\u2A4D':'ccaps','\u2A50':'ccupssm','\u2A53':'And','\u2A54':'Or','\u2A55':'andand','\u2A56':'oror','\u2A57':'orslope','\u2A58':'andslope','\u2A5A':'andv','\u2A5B':'orv','\u2A5C':'andd','\u2A5D':'ord','\u2A5F':'wedbar','\u2A66':'sdote','\u2A6A':'simdot','\u2A6D':'congdot','\u2A6D\u0338':'ncongdot','\u2A6E':'easter','\u2A6F':'apacir','\u2A70':'apE','\u2A70\u0338':'napE','\u2A71':'eplus','\u2A72':'pluse','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
+
+	var regexEscape = /["&'<>`]/g;
+	var escapeMap = {
+		'"': '&quot;',
+		'&': '&amp;',
+		'\'': '&#x27;',
+		'<': '&lt;',
+		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
+		// following is not strictly necessary unless it’s part of a tag or an
+		// unquoted attribute value. We’re only escaping it to support those
+		// situations, and for XML support.
+		'>': '&gt;',
+		// In Internet Explorer ≤ 8, the backtick character can be used
+		// to break out of (un)quoted attribute values or HTML comments.
+		// See http://html5sec.org/#102, http://html5sec.org/#108, and
+		// http://html5sec.org/#133.
+		'`': '&#x60;'
+	};
+
+	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
+	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+	var regexDecode = /&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)([=a-zA-Z0-9])?/g;
+	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
+	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
+	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
+	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
+
+	/*--------------------------------------------------------------------------*/
+
+	var stringFromCharCode = String.fromCharCode;
+
+	var object = {};
+	var hasOwnProperty = object.hasOwnProperty;
+	var has = function(object, propertyName) {
+		return hasOwnProperty.call(object, propertyName);
+	};
+
+	var contains = function(array, value) {
+		var index = -1;
+		var length = array.length;
+		while (++index < length) {
+			if (array[index] == value) {
+				return true;
+			}
+		}
+		return false;
+	};
+
+	var merge = function(options, defaults) {
+		if (!options) {
+			return defaults;
+		}
+		var result = {};
+		var key;
+		for (key in defaults) {
+			// A `hasOwnProperty` check is not needed here, since only recognized
+			// option names are used anyway. Any others are ignored.
+			result[key] = has(options, key) ? options[key] : defaults[key];
+		}
+		return result;
+	};
+
+	// Modified version of `ucs2encode`; see https://mths.be/punycode.
+	var codePointToSymbol = function(codePoint, strict) {
+		var output = '';
+		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
+			// See issue #4:
+			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
+			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
+			// REPLACEMENT CHARACTER.”
+			if (strict) {
+				parseError('character reference outside the permissible Unicode range');
+			}
+			return '\uFFFD';
+		}
+		if (has(decodeMapNumeric, codePoint)) {
+			if (strict) {
+				parseError('disallowed character reference');
+			}
+			return decodeMapNumeric[codePoint];
+		}
+		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
+			parseError('disallowed character reference');
+		}
+		if (codePoint > 0xFFFF) {
+			codePoint -= 0x10000;
+			output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
+			codePoint = 0xDC00 | codePoint & 0x3FF;
+		}
+		output += stringFromCharCode(codePoint);
+		return output;
+	};
+
+	var hexEscape = function(codePoint) {
+		return '&#x' + codePoint.toString(16).toUpperCase() + ';';
+	};
+
+	var decEscape = function(codePoint) {
+		return '&#' + codePoint + ';';
+	};
+
+	var parseError = function(message) {
+		throw Error('Parse error: ' + message);
+	};
+
+	/*--------------------------------------------------------------------------*/
+
+	var encode = function(string, options) {
+		options = merge(options, encode.options);
+		var strict = options.strict;
+		if (strict && regexInvalidRawCodePoint.test(string)) {
+			parseError('forbidden code point');
+		}
+		var encodeEverything = options.encodeEverything;
+		var useNamedReferences = options.useNamedReferences;
+		var allowUnsafeSymbols = options.allowUnsafeSymbols;
+		var escapeCodePoint = options.decimal ? decEscape : hexEscape;
+
+		var escapeBmpSymbol = function(symbol) {
+			return escapeCodePoint(symbol.charCodeAt(0));
+		};
+
+		if (encodeEverything) {
+			// Encode ASCII symbols.
+			string = string.replace(regexAsciiWhitelist, function(symbol) {
+				// Use named references if requested & possible.
+				if (useNamedReferences && has(encodeMap, symbol)) {
+					return '&' + encodeMap[symbol] + ';';
+				}
+				return escapeBmpSymbol(symbol);
+			});
+			// Shorten a few escapes that represent two symbols, of which at least one
+			// is within the ASCII range.
+			if (useNamedReferences) {
+				string = string
+					.replace(/&gt;\u20D2/g, '&nvgt;')
+					.replace(/&lt;\u20D2/g, '&nvlt;')
+					.replace(/&#x66;&#x6A;/g, '&fjlig;');
+			}
+			// Encode non-ASCII symbols.
+			if (useNamedReferences) {
+				// Encode non-ASCII symbols that can be replaced with a named reference.
+				string = string.replace(regexEncodeNonAscii, function(string) {
+					// Note: there is no need to check `has(encodeMap, string)` here.
+					return '&' + encodeMap[string] + ';';
+				});
+			}
+			// Note: any remaining non-ASCII symbols are handled outside of the `if`.
+		} else if (useNamedReferences) {
+			// Apply named character references.
+			// Encode `<>"'&` using named character references.
+			if (!allowUnsafeSymbols) {
+				string = string.replace(regexEscape, function(string) {
+					return '&' + encodeMap[string] + ';'; // no need to check `has()` here
+				});
+			}
+			// Shorten escapes that represent two symbols, of which at least one is
+			// `<>"'&`.
+			string = string
+				.replace(/&gt;\u20D2/g, '&nvgt;')
+				.replace(/&lt;\u20D2/g, '&nvlt;');
+			// Encode non-ASCII symbols that can be replaced with a named reference.
+			string = string.replace(regexEncodeNonAscii, function(string) {
+				// Note: there is no need to check `has(encodeMap, string)` here.
+				return '&' + encodeMap[string] + ';';
+			});
+		} else if (!allowUnsafeSymbols) {
+			// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
+			// using named character references.
+			string = string.replace(regexEscape, escapeBmpSymbol);
+		}
+		return string
+			// Encode astral symbols.
+			.replace(regexAstralSymbols, function($0) {
+				// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+				var high = $0.charCodeAt(0);
+				var low = $0.charCodeAt(1);
+				var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
+				return escapeCodePoint(codePoint);
+			})
+			// Encode any remaining BMP symbols that are not printable ASCII symbols
+			// using a hexadecimal escape.
+			.replace(regexBmpWhitelist, escapeBmpSymbol);
+	};
+	// Expose default options (so they can be overridden globally).
+	encode.options = {
+		'allowUnsafeSymbols': false,
+		'encodeEverything': false,
+		'strict': false,
+		'useNamedReferences': false,
+		'decimal' : false
+	};
+
+	var decode = function(html, options) {
+		options = merge(options, decode.options);
+		var strict = options.strict;
+		if (strict && regexInvalidEntity.test(html)) {
+			parseError('malformed character reference');
+		}
+		return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7) {
+			var codePoint;
+			var semicolon;
+			var decDigits;
+			var hexDigits;
+			var reference;
+			var next;
+			if ($1) {
+				// Decode decimal escapes, e.g. `&#119558;`.
+				decDigits = $1;
+				semicolon = $2;
+				if (strict && !semicolon) {
+					parseError('character reference was not terminated by a semicolon');
+				}
+				codePoint = parseInt(decDigits, 10);
+				return codePointToSymbol(codePoint, strict);
+			}
+			if ($3) {
+				// Decode hexadecimal escapes, e.g. `&#x1D306;`.
+				hexDigits = $3;
+				semicolon = $4;
+				if (strict && !semicolon) {
+					parseError('character reference was not terminated by a semicolon');
+				}
+				codePoint = parseInt(hexDigits, 16);
+				return codePointToSymbol(codePoint, strict);
+			}
+			if ($5) {
+				// Decode named character references with trailing `;`, e.g. `&copy;`.
+				reference = $5;
+				if (has(decodeMap, reference)) {
+					return decodeMap[reference];
+				} else {
+					// Ambiguous ampersand. https://mths.be/notes/ambiguous-ampersands
+					if (strict) {
+						parseError(
+							'named character reference was not terminated by a semicolon'
+						);
+					}
+					return $0;
+				}
+			}
+			// If we’re still here, it’s a legacy reference for sure. No need for an
+			// extra `if` check.
+			// Decode named character references without trailing `;`, e.g. `&amp`
+			// This is only a parse error if it gets converted to `&`, or if it is
+			// followed by `=` in an attribute context.
+			reference = $6;
+			next = $7;
+			if (next && options.isAttributeValue) {
+				if (strict && next == '=') {
+					parseError('`&` did not start a character reference');
+				}
+				return $0;
+			} else {
+				if (strict) {
+					parseError(
+						'named character reference was not terminated by a semicolon'
+					);
+				}
+				// Note: there is no need to check `has(decodeMapLegacy, reference)`.
+				return decodeMapLegacy[reference] + (next || '');
+			}
+		});
+	};
+	// Expose default options (so they can be overridden globally).
+	decode.options = {
+		'isAttributeValue': false,
+		'strict': false
+	};
+
+	var escape = function(string) {
+		return string.replace(regexEscape, function($0) {
+			// Note: there is no need to check `has(escapeMap, $0)` here.
+			return escapeMap[$0];
+		});
+	};
+
+	/*--------------------------------------------------------------------------*/
+
+	var he = {
+		'version': '1.1.1',
+		'encode': encode,
+		'decode': decode,
+		'escape': escape,
+		'unescape': decode
+	};
+
+	// Some AMD build optimizers, like r.js, check for specific condition patterns
+	// like the following:
+	if (
+		typeof undefined == 'function' &&
+		typeof undefined.amd == 'object' &&
+		undefined.amd
+	) {
+		undefined(function() {
+			return he;
+		});
+	}	else if (freeExports && !freeExports.nodeType) {
+		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
+			freeModule.exports = he;
+		} else { // in Narwhal or RingoJS v0.7.0-
+			for (var key in he) {
+				has(he, key) && (freeExports[key] = he[key]);
+			}
+		}
+	} else { // in Rhino or a web browser
+		root.he = he;
+	}
+
+}(commonjsGlobal));
+});
+
+/*  */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  var ref = modifiers || {};
+  var number = ref.number;
+  var trim = ref.trim;
+
+  var baseValueExpression = '$$v';
+  var valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      "(typeof " + baseValueExpression + " === 'string'" +
+        "? " + baseValueExpression + ".trim()" +
+        ": " + baseValueExpression + ")";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+  var assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: ("(" + value + ")"),
+    expression: ("\"" + value + "\""),
+    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  var res = parseModel(value);
+  if (res.key === null) {
+    return (value + "=" + assignment)
+  } else {
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+var len;
+var str;
+var chr;
+var index;
+var expressionPos;
+var expressionEndPos;
+
+
+
+function parseModel (val) {
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index = val.lastIndexOf('.');
+    if (index > -1) {
+      return {
+        exp: val.slice(0, index),
+        key: '"' + val.slice(index + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index)
+}
+
+function eof () {
+  return index >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  var inBracket = 1;
+  expressionPos = index;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) { inBracket++; }
+    if (chr === 0x5D) { inBracket--; }
+    if (inBracket === 0) {
+      expressionEndPos = index;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  var stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
+    }
+  }
+}
+
+/*  */
+
+var onRE = /^@|^v-on:/;
+var dirRE = /^v-|^@|^:/;
+var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+
+var argRE = /:(.*)$/;
+var bindRE = /^:|^v-bind:/;
+var modifierRE = /\.[^.]+/g;
+
+var decodeHTMLCached = cached(he.decode);
+
+// configurable state
+var warn$1;
+var delimiters;
+var transforms;
+var preTransforms;
+var postTransforms;
+var platformIsPreTag;
+var platformMustUseProp;
+var platformGetTagNamespace;
+
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+  template,
+  options
+) {
+  warn$1 = options.warn || baseWarn;
+
+  platformIsPreTag = options.isPreTag || no;
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
+
+  transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+  delimiters = options.delimiters;
+
+  var stack = [];
+  var preserveWhitespace = options.preserveWhitespace !== false;
+  var root;
+  var currentParent;
+  var inVPre = false;
+  var inPre = false;
+  var warned = false;
+
+  function warnOnce (msg) {
+    if (!warned) {
+      warned = true;
+      warn$1(msg);
+    }
+  }
+
+  function endPre (element) {
+    // check pre state
+    if (element.pre) {
+      inVPre = false;
+    }
+    if (platformIsPreTag(element.tag)) {
+      inPre = false;
+    }
+  }
+
+  parseHTML(template, {
+    warn: warn$1,
+    expectHTML: options.expectHTML,
+    isUnaryTag: options.isUnaryTag,
+    canBeLeftOpenTag: options.canBeLeftOpenTag,
+    shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldKeepComment: options.comments,
+    start: function start (tag, attrs, unary) {
+      // check namespace.
+      // inherit parent ns if there is one
+      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+      // handle IE svg bug
+      /* istanbul ignore if */
+      if (isIE && ns === 'svg') {
+        attrs = guardIESVGBug(attrs);
+      }
+
+      var element = createASTElement(tag, attrs, currentParent);
+      if (ns) {
+        element.ns = ns;
+      }
+
+      if (isForbiddenTag(element) && !isServerRendering()) {
+        element.forbidden = true;
+        "development" !== 'production' && warn$1(
+          'Templates should only be responsible for mapping the state to the ' +
+          'UI. Avoid placing tags with side-effects in your templates, such as ' +
+          "<" + tag + ">" + ', as they will not be parsed.'
+        );
+      }
+
+      // apply pre-transforms
+      for (var i = 0; i < preTransforms.length; i++) {
+        element = preTransforms[i](element, options) || element;
+      }
+
+      if (!inVPre) {
+        processPre(element);
+        if (element.pre) {
+          inVPre = true;
+        }
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = true;
+      }
+      if (inVPre) {
+        processRawAttrs(element);
+      } else if (!element.processed) {
+        // structural directives
+        processFor(element);
+        processIf(element);
+        processOnce(element);
+        // element-scope stuff
+        processElement(element, options);
+      }
+
+      function checkRootConstraints (el) {
+        {
+          if (el.tag === 'slot' || el.tag === 'template') {
+            warnOnce(
+              "Cannot use <" + (el.tag) + "> as component root element because it may " +
+              'contain multiple nodes.'
+            );
+          }
+          if (el.attrsMap.hasOwnProperty('v-for')) {
+            warnOnce(
+              'Cannot use v-for on stateful component root element because ' +
+              'it renders multiple elements.'
+            );
+          }
+        }
+      }
+
+      // tree management
+      if (!root) {
+        root = element;
+        checkRootConstraints(root);
+      } else if (!stack.length) {
+        // allow root elements with v-if, v-else-if and v-else
+        if (root.if && (element.elseif || element.else)) {
+          checkRootConstraints(element);
+          addIfCondition(root, {
+            exp: element.elseif,
+            block: element
+          });
+        } else {
+          warnOnce(
+            "Component template should contain exactly one root element. " +
+            "If you are using v-if on multiple elements, " +
+            "use v-else-if to chain them instead."
+          );
+        }
+      }
+      if (currentParent && !element.forbidden) {
+        if (element.elseif || element.else) {
+          processIfConditions(element, currentParent);
+        } else if (element.slotScope) { // scoped slot
+          currentParent.plain = false;
+          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        } else {
+          currentParent.children.push(element);
+          element.parent = currentParent;
+        }
+      }
+      if (!unary) {
+        currentParent = element;
+        stack.push(element);
+      } else {
+        endPre(element);
+      }
+      // apply post-transforms
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
+      }
+    },
+
+    end: function end () {
+      // remove trailing whitespace
+      var element = stack[stack.length - 1];
+      var lastNode = element.children[element.children.length - 1];
+      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+        element.children.pop();
+      }
+      // pop stack
+      stack.length -= 1;
+      currentParent = stack[stack.length - 1];
+      endPre(element);
+    },
+
+    chars: function chars (text) {
+      if (!currentParent) {
+        {
+          if (text === template) {
+            warnOnce(
+              'Component template requires a root element, rather than just text.'
+            );
+          } else if ((text = text.trim())) {
+            warnOnce(
+              ("text \"" + text + "\" outside root element will be ignored.")
+            );
+          }
+        }
+        return
+      }
+      // IE textarea placeholder bug
+      /* istanbul ignore if */
+      if (isIE &&
+        currentParent.tag === 'textarea' &&
+        currentParent.attrsMap.placeholder === text
+      ) {
+        return
+      }
+      var children = currentParent.children;
+      text = inPre || text.trim()
+        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+        // only preserve whitespace if its not right after a starting tag
+        : preserveWhitespace && children.length ? ' ' : '';
+      if (text) {
+        var expression;
+        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+          children.push({
+            type: 2,
+            expression: expression,
+            text: text
+          });
+        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+          children.push({
+            type: 3,
+            text: text
+          });
+        }
+      }
+    },
+    comment: function comment (text) {
+      currentParent.children.push({
+        type: 3,
+        text: text,
+        isComment: true
+      });
+    }
+  });
+  return root
+}
+
+function processPre (el) {
+  if (getAndRemoveAttr(el, 'v-pre') != null) {
+    el.pre = true;
+  }
+}
+
+function processRawAttrs (el) {
+  var l = el.attrsList.length;
+  if (l) {
+    var attrs = el.attrs = new Array(l);
+    for (var i = 0; i < l; i++) {
+      attrs[i] = {
+        name: el.attrsList[i].name,
+        value: JSON.stringify(el.attrsList[i].value)
+      };
+    }
+  } else if (!el.pre) {
+    // non root node in pre blocks with no attributes
+    el.plain = true;
+  }
+}
+
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
+function processKey (el) {
+  var exp = getBindingAttr(el, 'key');
+  if (exp) {
+    if ("development" !== 'production' && el.tag === 'template') {
+      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+    }
+    el.key = exp;
+  }
+}
+
+function processRef (el) {
+  var ref = getBindingAttr(el, 'ref');
+  if (ref) {
+    el.ref = ref;
+    el.refInFor = checkInFor(el);
+  }
+}
+
+function processFor (el) {
+  var exp;
+  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+    var inMatch = exp.match(forAliasRE);
+    if (!inMatch) {
+      "development" !== 'production' && warn$1(
+        ("Invalid v-for expression: " + exp)
+      );
+      return
+    }
+    el.for = inMatch[2].trim();
+    var alias = inMatch[1].trim();
+    var iteratorMatch = alias.match(forIteratorRE);
+    if (iteratorMatch) {
+      el.alias = iteratorMatch[1].trim();
+      el.iterator1 = iteratorMatch[2].trim();
+      if (iteratorMatch[3]) {
+        el.iterator2 = iteratorMatch[3].trim();
+      }
+    } else {
+      el.alias = alias;
+    }
+  }
+}
+
+function processIf (el) {
+  var exp = getAndRemoveAttr(el, 'v-if');
+  if (exp) {
+    el.if = exp;
+    addIfCondition(el, {
+      exp: exp,
+      block: el
+    });
+  } else {
+    if (getAndRemoveAttr(el, 'v-else') != null) {
+      el.else = true;
+    }
+    var elseif = getAndRemoveAttr(el, 'v-else-if');
+    if (elseif) {
+      el.elseif = elseif;
+    }
+  }
+}
+
+function processIfConditions (el, parent) {
+  var prev = findPrevElement(parent.children);
+  if (prev && prev.if) {
+    addIfCondition(prev, {
+      exp: el.elseif,
+      block: el
+    });
+  } else {
+    warn$1(
+      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+      "used on element <" + (el.tag) + "> without corresponding v-if."
+    );
+  }
+}
+
+function findPrevElement (children) {
+  var i = children.length;
+  while (i--) {
+    if (children[i].type === 1) {
+      return children[i]
+    } else {
+      if ("development" !== 'production' && children[i].text !== ' ') {
+        warn$1(
+          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+          "will be ignored."
+        );
+      }
+      children.pop();
+    }
+  }
+}
+
+function addIfCondition (el, condition) {
+  if (!el.ifConditions) {
+    el.ifConditions = [];
+  }
+  el.ifConditions.push(condition);
+}
+
+function processOnce (el) {
+  var once$$1 = getAndRemoveAttr(el, 'v-once');
+  if (once$$1 != null) {
+    el.once = true;
+  }
+}
+
+function processSlot (el) {
+  if (el.tag === 'slot') {
+    el.slotName = getBindingAttr(el, 'name');
+    if ("development" !== 'production' && el.key) {
+      warn$1(
+        "`key` does not work on <slot> because slots are abstract outlets " +
+        "and can possibly expand into multiple elements. " +
+        "Use the key on a wrapping element instead."
+      );
+    }
+  } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if ("development" !== 'production' && slotScope) {
+        warn$1(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
+    var slotTarget = getBindingAttr(el, 'slot');
+    if (slotTarget) {
+      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
+    }
+  }
+}
+
+function processComponent (el) {
+  var binding;
+  if ((binding = getBindingAttr(el, 'is'))) {
+    el.component = binding;
+  }
+  if (getAndRemoveAttr(el, 'inline-template') != null) {
+    el.inlineTemplate = true;
+  }
+}
+
+function processAttrs (el) {
+  var list = el.attrsList;
+  var i, l, name, rawName, value, modifiers, isProp;
+  for (i = 0, l = list.length; i < l; i++) {
+    name = rawName = list[i].name;
+    value = list[i].value;
+    if (dirRE.test(name)) {
+      // mark element as dynamic
+      el.hasBindings = true;
+      // modifiers
+      modifiers = parseModifiers(name);
+      if (modifiers) {
+        name = name.replace(modifierRE, '');
+      }
+      if (bindRE.test(name)) { // v-bind
+        name = name.replace(bindRE, '');
+        value = parseFilters(value);
+        isProp = false;
+        if (modifiers) {
+          if (modifiers.prop) {
+            isProp = true;
+            name = camelize(name);
+            if (name === 'innerHtml') { name = 'innerHTML'; }
+          }
+          if (modifiers.camel) {
+            name = camelize(name);
+          }
+          if (modifiers.sync) {
+            addHandler(
+              el,
+              ("update:" + (camelize(name))),
+              genAssignmentCode(value, "$event")
+            );
+          }
+        }
+        if (isProp || (
+          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+        )) {
+          addProp(el, name, value);
+        } else {
+          addAttr(el, name, value);
+        }
+      } else if (onRE.test(name)) { // v-on
+        name = name.replace(onRE, '');
+        addHandler(el, name, value, modifiers, false, warn$1);
+      } else { // normal directives
+        name = name.replace(dirRE, '');
+        // parse arg
+        var argMatch = name.match(argRE);
+        var arg = argMatch && argMatch[1];
+        if (arg) {
+          name = name.slice(0, -(arg.length + 1));
+        }
+        addDirective(el, name, rawName, value, arg, modifiers);
+        if ("development" !== 'production' && name === 'model') {
+          checkForAliasModel(el, value);
+        }
+      }
+    } else {
+      // literal attribute
+      {
+        var expression = parseText(value, delimiters);
+        if (expression) {
+          warn$1(
+            name + "=\"" + value + "\": " +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div id="{{ val }}">, use <div :id="val">.'
+          );
+        }
+      }
+      addAttr(el, name, JSON.stringify(value));
+    }
+  }
+}
+
+function checkInFor (el) {
+  var parent = el;
+  while (parent) {
+    if (parent.for !== undefined) {
+      return true
+    }
+    parent = parent.parent;
+  }
+  return false
+}
+
+function parseModifiers (name) {
+  var match = name.match(modifierRE);
+  if (match) {
+    var ret = {};
+    match.forEach(function (m) { ret[m.slice(1)] = true; });
+    return ret
+  }
+}
+
+function makeAttrsMap (attrs) {
+  var map = {};
+  for (var i = 0, l = attrs.length; i < l; i++) {
+    if (
+      "development" !== 'production' &&
+      map[attrs[i].name] && !isIE && !isEdge
+    ) {
+      warn$1('duplicate attribute: ' + attrs[i].name);
+    }
+    map[attrs[i].name] = attrs[i].value;
+  }
+  return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+  return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+  return (
+    el.tag === 'style' ||
+    (el.tag === 'script' && (
+      !el.attrsMap.type ||
+      el.attrsMap.type === 'text/javascript'
+    ))
+  )
+}
+
+var ieNSBug = /^xmlns:NS\d+/;
+var ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+  var res = [];
+  for (var i = 0; i < attrs.length; i++) {
+    var attr = attrs[i];
+    if (!ieNSBug.test(attr.name)) {
+      attr.name = attr.name.replace(ieNSPrefix, '');
+      res.push(attr);
+    }
+  }
+  return res
+}
+
+function checkForAliasModel (el, value) {
+  var _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$1(
+        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+        "You are binding v-model directly to a v-for iteration alias. " +
+        "This will not be able to modify the v-for source array because " +
+        "writing to the alias is like modifying a function local variable. " +
+        "Consider using an array of objects and use v-model on an object property instead."
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      var typeBinding = getBindingAttr(el, 'type');
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "type==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+var model = {
+  preTransformNode: preTransformNode
+};
+
+var modules = [
+  klass,
+  style,
+  model
+];
+
+/*  */
+
+var warn$2;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+
+function model$1 (
+  el,
+  dir,
+  _warn
+) {
+  warn$2 = _warn;
+  var value = dir.value;
+  var modifiers = dir.modifiers;
+  var tag = el.tag;
+  var type = el.attrsMap.type;
+
+  {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$2(
+        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+        "File inputs are read only. Use a v-on:change listener instead."
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else {
+    warn$2(
+      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+      "v-model is not supported on this element type. " +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.'
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    "Array.isArray(" + value + ")" +
+      "?_i(" + value + "," + valueBinding + ")>-1" + (
+        trueValueBinding === 'true'
+          ? (":(" + value + ")")
+          : (":_q(" + value + "," + trueValueBinding + ")")
+      )
+  );
+  addHandler(el, 'change',
+    "var $$a=" + value + "," +
+        '$$el=$event.target,' +
+        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+    'if(Array.isArray($$a)){' +
+      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+          '$$i=_i($$a,$$v);' +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
+      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+    null, true
+  );
+}
+
+function genRadioModel (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var selectedVal = "Array.prototype.filter" +
+    ".call($event.target.options,function(o){return o.selected})" +
+    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+    "return " + (number ? '_n(val)' : 'val') + "})";
+
+  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  var code = "var $$selectedVal = " + selectedVal + ";";
+  code = code + " " + (genAssignmentCode(value, assignment));
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  var type = el.attrsMap.type;
+  var ref = modifiers || {};
+  var lazy = ref.lazy;
+  var number = ref.number;
+  var trim = ref.trim;
+  var needCompositionGuard = !lazy && type !== 'range';
+  var event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  var valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = "$event.target.value.trim()";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+
+  var code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = "if($event.target.composing)return;" + code;
+  }
+
+  addProp(el, 'value', ("(" + value + ")"));
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+var directives = {
+  model: model$1,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules,
+  directives: directives,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules)
+};
+
+/*  */
+
+var isStaticKey;
+var isPlatformReservedTag;
+
+var genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ *    create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+  if (!root) { return }
+  isStaticKey = genStaticKeysCached(options.staticKeys || '');
+  isPlatformReservedTag = options.isReservedTag || no;
+  // first pass: mark all non-static nodes.
+  markStatic(root);
+  // second pass: mark static roots.
+  markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+  return makeMap(
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+    (keys ? ',' + keys : '')
+  )
+}
+
+function markStatic (node) {
+  node.static = isStatic(node);
+  if (node.type === 1) {
+    // do not make component slot content static. this avoids
+    // 1. components not able to mutate slot nodes
+    // 2. static slot content fails for hot-reloading
+    if (
+      !isPlatformReservedTag(node.tag) &&
+      node.tag !== 'slot' &&
+      node.attrsMap['inline-template'] == null
+    ) {
+      return
+    }
+    for (var i = 0, l = node.children.length; i < l; i++) {
+      var child = node.children[i];
+      markStatic(child);
+      if (!child.static) {
+        node.static = false;
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        var block = node.ifConditions[i$1].block;
+        markStatic(block);
+        if (!block.static) {
+          node.static = false;
+        }
+      }
+    }
+  }
+}
+
+function markStaticRoots (node, isInFor) {
+  if (node.type === 1) {
+    if (node.static || node.once) {
+      node.staticInFor = isInFor;
+    }
+    // For a node to qualify as a static root, it should have children that
+    // are not just static text. Otherwise the cost of hoisting out will
+    // outweigh the benefits and it's better off to just always render it fresh.
+    if (node.static && node.children.length && !(
+      node.children.length === 1 &&
+      node.children[0].type === 3
+    )) {
+      node.staticRoot = true;
+      return
+    } else {
+      node.staticRoot = false;
+    }
+    if (node.children) {
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        markStaticRoots(node.children[i], isInFor || !!node.for);
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        markStaticRoots(node.ifConditions[i$1].block, isInFor);
+      }
+    }
+  }
+}
+
+function isStatic (node) {
+  if (node.type === 2) { // expression
+    return false
+  }
+  if (node.type === 3) { // text
+    return true
+  }
+  return !!(node.pre || (
+    !node.hasBindings && // no dynamic bindings
+    !node.if && !node.for && // not v-if or v-for or v-else
+    !isBuiltInTag(node.tag) && // not a built-in
+    isPlatformReservedTag(node.tag) && // not a component
+    !isDirectChildOfTemplateFor(node) &&
+    Object.keys(node).every(isStaticKey)
+  ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+  while (node.parent) {
+    node = node.parent;
+    if (node.tag !== 'template') {
+      return false
+    }
+    if (node.for) {
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+
+// keyCode aliases
+var keyCodes = {
+  esc: 27,
+  tab: 9,
+  enter: 13,
+  space: 32,
+  up: 38,
+  left: 37,
+  right: 39,
+  down: 40,
+  'delete': [8, 46]
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+var modifierCode = {
+  stop: '$event.stopPropagation();',
+  prevent: '$event.preventDefault();',
+  self: genGuard("$event.target !== $event.currentTarget"),
+  ctrl: genGuard("!$event.ctrlKey"),
+  shift: genGuard("!$event.shiftKey"),
+  alt: genGuard("!$event.altKey"),
+  meta: genGuard("!$event.metaKey"),
+  left: genGuard("'button' in $event && $event.button !== 0"),
+  middle: genGuard("'button' in $event && $event.button !== 1"),
+  right: genGuard("'button' in $event && $event.button !== 2")
+};
+
+function genHandlers (
+  events,
+  isNative,
+  warn
+) {
+  var res = isNative ? 'nativeOn:{' : 'on:{';
+  for (var name in events) {
+    var handler = events[name];
+    // #5330: warn click.right, since right clicks do not actually fire click events.
+    if ("development" !== 'production' &&
+      name === 'click' &&
+      handler && handler.modifiers && handler.modifiers.right
+    ) {
+      warn(
+        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
+        "do not actually fire \"click\" events."
+      );
+    }
+    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+  }
+  return res.slice(0, -1) + '}'
+}
+
+function genHandler (
+  name,
+  handler
+) {
+  if (!handler) {
+    return 'function(){}'
+  }
+
+  if (Array.isArray(handler)) {
+    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+  }
+
+  var isMethodPath = simplePathRE.test(handler.value);
+  var isFunctionExpression = fnExpRE.test(handler.value);
+
+  if (!handler.modifiers) {
+    return isMethodPath || isFunctionExpression
+      ? handler.value
+      : ("function($event){" + (handler.value) + "}") // inline statement
+  } else {
+    var code = '';
+    var genModifierCode = '';
+    var keys = [];
+    for (var key in handler.modifiers) {
+      if (modifierCode[key]) {
+        genModifierCode += modifierCode[key];
+        // left/right
+        if (keyCodes[key]) {
+          keys.push(key);
+        }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
+      } else {
+        keys.push(key);
+      }
+    }
+    if (keys.length) {
+      code += genKeyFilter(keys);
+    }
+    // Make sure modifiers like prevent and stop get executed after key filtering
+    if (genModifierCode) {
+      code += genModifierCode;
+    }
+    var handlerCode = isMethodPath
+      ? handler.value + '($event)'
+      : isFunctionExpression
+        ? ("(" + (handler.value) + ")($event)")
+        : handler.value;
+    return ("function($event){" + code + handlerCode + "}")
+  }
+}
+
+function genKeyFilter (keys) {
+  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+}
+
+function genFilterCode (key) {
+  var keyVal = parseInt(key, 10);
+  if (keyVal) {
+    return ("$event.keyCode!==" + keyVal)
+  }
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
+}
+
+/*  */
+
+function on (el, dir) {
+  if ("development" !== 'production' && dir.modifiers) {
+    warn("v-on without argument does not support modifiers.");
+  }
+  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
+}
+
+/*  */
+
+function bind$1 (el, dir) {
+  el.wrapData = function (code) {
+    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+  };
+}
+
+/*  */
+
+var baseDirectives = {
+  on: on,
+  bind: bind$1,
+  cloak: noop
+};
+
+/*  */
+
+var CodegenState = function CodegenState (options) {
+  this.options = options;
+  this.warn = options.warn || baseWarn;
+  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+  this.directives = extend(extend({}, baseDirectives), options.directives);
+  var isReservedTag = options.isReservedTag || no;
+  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.onceId = 0;
+  this.staticRenderFns = [];
+};
+
+
+
+function generate (
+  ast,
+  options
+) {
+  var state = new CodegenState(options);
+  var code = ast ? genElement(ast, state) : '_c("div")';
+  return {
+    render: ("with(this){return " + code + "}"),
+    staticRenderFns: state.staticRenderFns
+  }
+}
+
+function genElement (el, state) {
+  if (el.staticRoot && !el.staticProcessed) {
+    return genStatic(el, state)
+  } else if (el.once && !el.onceProcessed) {
+    return genOnce(el, state)
+  } else if (el.for && !el.forProcessed) {
+    return genFor(el, state)
+  } else if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.tag === 'template' && !el.slotTarget) {
+    return genChildren(el, state) || 'void 0'
+  } else if (el.tag === 'slot') {
+    return genSlot(el, state)
+  } else {
+    // component or element
+    var code;
+    if (el.component) {
+      code = genComponent(el.component, el, state);
+    } else {
+      var data = el.plain ? undefined : genData$2(el, state);
+
+      var children = el.inlineTemplate ? null : genChildren(el, state, true);
+      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+    }
+    // module transforms
+    for (var i = 0; i < state.transforms.length; i++) {
+      code = state.transforms[i](el, code);
+    }
+    return code
+  }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state) {
+  el.staticProcessed = true;
+  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+}
+
+// v-once
+function genOnce (el, state) {
+  el.onceProcessed = true;
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.staticInFor) {
+    var key = '';
+    var parent = el.parent;
+    while (parent) {
+      if (parent.for) {
+        key = parent.key;
+        break
+      }
+      parent = parent.parent;
+    }
+    if (!key) {
+      "development" !== 'production' && state.warn(
+        "v-once can only be used inside v-for that is keyed. "
+      );
+      return genElement(el, state)
+    }
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+  } else {
+    return genStatic(el, state)
+  }
+}
+
+function genIf (
+  el,
+  state,
+  altGen,
+  altEmpty
+) {
+  el.ifProcessed = true; // avoid recursion
+  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+  conditions,
+  state,
+  altGen,
+  altEmpty
+) {
+  if (!conditions.length) {
+    return altEmpty || '_e()'
+  }
+
+  var condition = conditions.shift();
+  if (condition.exp) {
+    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+  } else {
+    return ("" + (genTernaryExp(condition.block)))
+  }
+
+  // v-if with v-once should generate code like (a)?_m(0):_m(1)
+  function genTernaryExp (el) {
+    return altGen
+      ? altGen(el, state)
+      : el.once
+        ? genOnce(el, state)
+        : genElement(el, state)
+  }
+}
+
+function genFor (
+  el,
+  state,
+  altGen,
+  altHelper
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+  if ("development" !== 'production' &&
+    state.maybeComponent(el) &&
+    el.tag !== 'slot' &&
+    el.tag !== 'template' &&
+    !el.key
+  ) {
+    state.warn(
+      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+      "v-for should have explicit keys. " +
+      "See https://vuejs.org/guide/list.html#key for more info.",
+      true /* tip */
+    );
+  }
+
+  el.forProcessed = true; // avoid recursion
+  return (altHelper || '_l') + "((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + ((altGen || genElement)(el, state)) +
+    '})'
+}
+
+function genData$2 (el, state) {
+  var data = '{';
+
+  // directives first.
+  // directives may mutate the el's other properties before they are generated.
+  var dirs = genDirectives(el, state);
+  if (dirs) { data += dirs + ','; }
+
+  // key
+  if (el.key) {
+    data += "key:" + (el.key) + ",";
+  }
+  // ref
+  if (el.ref) {
+    data += "ref:" + (el.ref) + ",";
+  }
+  if (el.refInFor) {
+    data += "refInFor:true,";
+  }
+  // pre
+  if (el.pre) {
+    data += "pre:true,";
+  }
+  // record original tag name for components using "is" attribute
+  if (el.component) {
+    data += "tag:\"" + (el.tag) + "\",";
+  }
+  // module data generation functions
+  for (var i = 0; i < state.dataGenFns.length; i++) {
+    data += state.dataGenFns[i](el);
+  }
+  // attributes
+  if (el.attrs) {
+    data += "attrs:{" + (genProps(el.attrs)) + "},";
+  }
+  // DOM props
+  if (el.props) {
+    data += "domProps:{" + (genProps(el.props)) + "},";
+  }
+  // event handlers
+  if (el.events) {
+    data += (genHandlers(el.events, false, state.warn)) + ",";
+  }
+  if (el.nativeEvents) {
+    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+  }
+  // slot target
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
+    data += "slot:" + (el.slotTarget) + ",";
+  }
+  // scoped slots
+  if (el.scopedSlots) {
+    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+  }
+  // component v-model
+  if (el.model) {
+    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+  }
+  // inline-template
+  if (el.inlineTemplate) {
+    var inlineTemplate = genInlineTemplate(el, state);
+    if (inlineTemplate) {
+      data += inlineTemplate + ",";
+    }
+  }
+  data = data.replace(/,$/, '') + '}';
+  // v-bind data wrap
+  if (el.wrapData) {
+    data = el.wrapData(data);
+  }
+  // v-on data wrap
+  if (el.wrapListeners) {
+    data = el.wrapListeners(data);
+  }
+  return data
+}
+
+function genDirectives (el, state) {
+  var dirs = el.directives;
+  if (!dirs) { return }
+  var res = 'directives:[';
+  var hasRuntime = false;
+  var i, l, dir, needRuntime;
+  for (i = 0, l = dirs.length; i < l; i++) {
+    dir = dirs[i];
+    needRuntime = true;
+    var gen = state.directives[dir.name];
+    if (gen) {
+      // compile-time directive that manipulates AST.
+      // returns true if it also needs a runtime counterpart.
+      needRuntime = !!gen(el, dir, state.warn);
+    }
+    if (needRuntime) {
+      hasRuntime = true;
+      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+    }
+  }
+  if (hasRuntime) {
+    return res.slice(0, -1) + ']'
+  }
+}
+
+function genInlineTemplate (el, state) {
+  var ast = el.children[0];
+  if ("development" !== 'production' && (
+    el.children.length !== 1 || ast.type !== 1
+  )) {
+    state.warn('Inline-template components must have exactly one child element.');
+  }
+  if (ast.type === 1) {
+    var inlineRenderFns = generate(ast, state.options);
+    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+  }
+}
+
+function genScopedSlots (
+  slots,
+  state
+) {
+  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+      return genScopedSlot(key, slots[key], state)
+    }).join(',')) + "])")
+}
+
+function genScopedSlot (
+  key,
+  el,
+  state
+) {
+  if (el.for && !el.forProcessed) {
+    return genForScopedSlot(key, el, state)
+  }
+  var fn = "function(" + (String(el.slotScope)) + "){" +
+    "return " + (el.tag === 'template'
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
+}
+
+function genForScopedSlot (
+  key,
+  el,
+  state
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+  el.forProcessed = true; // avoid recursion
+  return "_l((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + (genScopedSlot(key, el, state)) +
+    '})'
+}
+
+function genChildren (
+  el,
+  state,
+  checkSkip,
+  altGenElement,
+  altGenNode
+) {
+  var children = el.children;
+  if (children.length) {
+    var el$1 = children[0];
+    // optimize single v-for
+    if (children.length === 1 &&
+      el$1.for &&
+      el$1.tag !== 'template' &&
+      el$1.tag !== 'slot'
+    ) {
+      return (altGenElement || genElement)(el$1, state)
+    }
+    var normalizationType = checkSkip
+      ? getNormalizationType(children, state.maybeComponent)
+      : 0;
+    var gen = altGenNode || genNode;
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+  }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+  children,
+  maybeComponent
+) {
+  var res = 0;
+  for (var i = 0; i < children.length; i++) {
+    var el = children[i];
+    if (el.type !== 1) {
+      continue
+    }
+    if (needsNormalization(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+      res = 2;
+      break
+    }
+    if (maybeComponent(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+      res = 1;
+    }
+  }
+  return res
+}
+
+function needsNormalization (el) {
+  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+  if (node.type === 1) {
+    return genElement(node, state)
+  } if (node.type === 3 && node.isComment) {
+    return genComment(node)
+  } else {
+    return genText(node)
+  }
+}
+
+function genText (text) {
+  return ("_v(" + (text.type === 2
+    ? text.expression // no need for () because already wrapped in _s()
+    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
+}
+
+function genComment (comment) {
+  return ("_e(" + (JSON.stringify(comment.text)) + ")")
+}
+
+function genSlot (el, state) {
+  var slotName = el.slotName || '"default"';
+  var children = genChildren(el, state);
+  var res = "_t(" + slotName + (children ? ("," + children) : '');
+  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var bind$$1 = el.attrsMap['v-bind'];
+  if ((attrs || bind$$1) && !children) {
+    res += ",null";
+  }
+  if (attrs) {
+    res += "," + attrs;
+  }
+  if (bind$$1) {
+    res += (attrs ? '' : ',null') + "," + bind$$1;
+  }
+  return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+  componentName,
+  el,
+  state
+) {
+  var children = el.inlineTemplate ? null : genChildren(el, state, true);
+  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+}
+
+function genProps (props) {
+  var res = '';
+  for (var i = 0; i < props.length; i++) {
+    var prop = props[i];
+    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+  }
+  return res.slice(0, -1)
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+  return text
+    .replace(/\u2028/g, '\\u2028')
+    .replace(/\u2029/g, '\\u2029')
+}
+
+/*  */
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+var prohibitedKeywordRE = new RegExp('\\b' + (
+  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+  'super,throw,while,yield,delete,export,import,return,switch,default,' +
+  'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+var unaryOperatorsRE = new RegExp('\\b' + (
+  'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// check valid identifier for v-for
+var identRE = /[A-Za-z_$][\w$]*/;
+
+// strip strings in expressions
+var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast) {
+  var errors = [];
+  if (ast) {
+    checkNode(ast, errors);
+  }
+  return errors
+}
+
+function checkNode (node, errors) {
+  if (node.type === 1) {
+    for (var name in node.attrsMap) {
+      if (dirRE.test(name)) {
+        var value = node.attrsMap[name];
+        if (value) {
+          if (name === 'v-for') {
+            checkFor(node, ("v-for=\"" + value + "\""), errors);
+          } else if (onRE.test(name)) {
+            checkEvent(value, (name + "=\"" + value + "\""), errors);
+          } else {
+            checkExpression(value, (name + "=\"" + value + "\""), errors);
+          }
+        }
+      }
+    }
+    if (node.children) {
+      for (var i = 0; i < node.children.length; i++) {
+        checkNode(node.children[i], errors);
+      }
+    }
+  } else if (node.type === 2) {
+    checkExpression(node.expression, node.text, errors);
+  }
+}
+
+function checkEvent (exp, text, errors) {
+  var stipped = exp.replace(stripStringRE, '');
+  var keywordMatch = stipped.match(unaryOperatorsRE);
+  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    errors.push(
+      "avoid using JavaScript unary operator as property name: " +
+      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+    );
+  }
+  checkExpression(exp, text, errors);
+}
+
+function checkFor (node, text, errors) {
+  checkExpression(node.for || '', text, errors);
+  checkIdentifier(node.alias, 'v-for alias', text, errors);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+}
+
+function checkIdentifier (ident, type, text, errors) {
+  if (typeof ident === 'string' && !identRE.test(ident)) {
+    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+  }
+}
+
+function checkExpression (exp, text, errors) {
+  try {
+    new Function(("return " + exp));
+  } catch (e) {
+    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+    if (keywordMatch) {
+      errors.push(
+        "avoid using JavaScript keyword as property name: " +
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+      );
+    } else {
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
+    }
+  }
+}
+
+/*  */
+
+function createFunction (code, errors) {
+  try {
+    return new Function(code)
+  } catch (err) {
+    errors.push({ err: err, code: code });
+    return noop
+  }
+}
+
+function createCompileToFunctionFn (compile) {
+  var cache = Object.create(null);
+
+  return function compileToFunctions (
+    template,
+    options,
+    vm
+  ) {
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
+
+    /* istanbul ignore if */
+    {
+      // detect possible CSP restriction
+      try {
+        new Function('return 1');
+      } catch (e) {
+        if (e.toString().match(/unsafe-eval|CSP/)) {
+          warn$$1(
+            'It seems you are using the standalone build of Vue.js in an ' +
+            'environment with Content Security Policy that prohibits unsafe-eval. ' +
+            'The template compiler cannot work in this environment. Consider ' +
+            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+            'templates into render functions.'
+          );
+        }
+      }
+    }
+
+    // check cache
+    var key = options.delimiters
+      ? String(options.delimiters) + template
+      : template;
+    if (cache[key]) {
+      return cache[key]
+    }
+
+    // compile
+    var compiled = compile(template, options);
+
+    // check compilation errors/tips
+    {
+      if (compiled.errors && compiled.errors.length) {
+        warn$$1(
+          "Error compiling template:\n\n" + template + "\n\n" +
+          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+          vm
+        );
+      }
+      if (compiled.tips && compiled.tips.length) {
+        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+      }
+    }
+
+    // turn code into functions
+    var res = {};
+    var fnGenErrors = [];
+    res.render = createFunction(compiled.render, fnGenErrors);
+    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+      return createFunction(code, fnGenErrors)
+    });
+
+    // check function generation errors.
+    // this should only happen if there is a bug in the compiler itself.
+    // mostly for codegen development use
+    /* istanbul ignore if */
+    {
+      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+        warn$$1(
+          "Failed to generate render function:\n\n" +
+          fnGenErrors.map(function (ref) {
+            var err = ref.err;
+            var code = ref.code;
+
+            return ((err.toString()) + " in\n\n" + code + "\n");
+        }).join('\n'),
+          vm
+        );
+      }
+    }
+
+    return (cache[key] = res)
+  }
+}
+
+/*  */
+
+function createCompilerCreator (baseCompile) {
+  return function createCompiler (baseOptions) {
+    function compile (
+      template,
+      options
+    ) {
+      var finalOptions = Object.create(baseOptions);
+      var errors = [];
+      var tips = [];
+      finalOptions.warn = function (msg, tip) {
+        (tip ? tips : errors).push(msg);
+      };
+
+      if (options) {
+        // merge custom modules
+        if (options.modules) {
+          finalOptions.modules =
+            (baseOptions.modules || []).concat(options.modules);
+        }
+        // merge custom directives
+        if (options.directives) {
+          finalOptions.directives = extend(
+            Object.create(baseOptions.directives),
+            options.directives
+          );
+        }
+        // copy other options
+        for (var key in options) {
+          if (key !== 'modules' && key !== 'directives') {
+            finalOptions[key] = options[key];
+          }
+        }
+      }
+
+      var compiled = baseCompile(template, finalOptions);
+      {
+        errors.push.apply(errors, detectErrors(compiled.ast));
+      }
+      compiled.errors = errors;
+      compiled.tips = tips;
+      return compiled
+    }
+
+    return {
+      compile: compile,
+      compileToFunctions: createCompileToFunctionFn(compile)
+    }
+  }
+}
+
+/*  */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+var createCompiler = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  var ast = parse(template.trim(), options);
+  optimize(ast, options);
+  var code = generate(ast, options);
+  return {
+    ast: ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
+var ref = createCompiler(baseOptions);
+var compile = ref.compile;
+var compileToFunctions = ref.compileToFunctions;
+
+/*  */
+
+var isAttr = makeMap(
+  'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
+  'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
+  'checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,' +
+  'name,contenteditable,contextmenu,controls,coords,data,datetime,default,' +
+  'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,' +
+  'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
+  'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
+  'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
+  'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
+  'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
+  'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
+  'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
+  'target,title,type,usemap,value,width,wrap'
+);
+
+/* istanbul ignore next */
+var isRenderableAttr = function (name) {
+  return (
+    isAttr(name) ||
+    name.indexOf('data-') === 0 ||
+    name.indexOf('aria-') === 0
+  )
+};
+var propsToAttrMap = {
+  acceptCharset: 'accept-charset',
+  className: 'class',
+  htmlFor: 'for',
+  httpEquiv: 'http-equiv'
+};
+
+var ESC = {
+  '<': '&lt;',
+  '>': '&gt;',
+  '"': '&quot;',
+  '&': '&amp;'
+};
+
+function escape (s) {
+  return s.replace(/[<>"&]/g, escapeChar)
+}
+
+function escapeChar (a) {
+  return ESC[a] || a
+}
+
+/*  */
+
+var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
+
+// let the model AST transform translate v-model into appropriate
+// props bindings
+function applyModelTransform (el, state) {
+  if (el.directives) {
+    for (var i = 0; i < el.directives.length; i++) {
+      var dir = el.directives[i];
+      if (dir.name === 'model') {
+        state.directives.model(el, dir, state.warn);
+        break
+      }
+    }
+  }
+}
+
+function genAttrSegments (
+  attrs
+) {
+  return attrs.map(function (ref) {
+    var name = ref.name;
+    var value = ref.value;
+
+    return genAttrSegment(name, value);
+  })
+}
+
+function genDOMPropSegments (
+  props,
+  attrs
+) {
+  var segments = [];
+  props.forEach(function (ref) {
+    var name = ref.name;
+    var value = ref.value;
+
+    name = propsToAttrMap[name] || name.toLowerCase();
+    if (isRenderableAttr(name) &&
+      !(attrs && attrs.some(function (a) { return a.name === name; }))
+    ) {
+      segments.push(genAttrSegment(name, value));
+    }
+  });
+  return segments
+}
+
+function genAttrSegment (name, value) {
+  if (plainStringRE.test(value)) {
+    // force double quote
+    value = value.replace(/^'|'$/g, '"');
+    // force enumerated attr to "true"
+    if (isEnumeratedAttr(name) && value !== "\"false\"") {
+      value = "\"true\"";
+    }
+    return {
+      type: RAW,
+      value: isBooleanAttr(name)
+        ? (" " + name + "=\"" + name + "\"")
+        : value === '""'
+          ? (" " + name)
+          : (" " + name + "=" + value)
+    }
+  } else {
+    return {
+      type: EXPRESSION,
+      value: ("_ssrAttr(" + (JSON.stringify(name)) + "," + value + ")")
+    }
+  }
+}
+
+function genClassSegments (
+  staticClass,
+  classBinding
+) {
+  if (staticClass && !classBinding) {
+    return [{ type: RAW, value: (" class=" + staticClass) }]
+  } else {
+    return [{
+      type: EXPRESSION,
+      value: ("_ssrClass(" + (staticClass || 'null') + "," + (classBinding || 'null') + ")")
+    }]
+  }
+}
+
+function genStyleSegments (
+  staticStyle,
+  parsedStaticStyle,
+  styleBinding,
+  vShowExpression
+) {
+  if (staticStyle && !styleBinding && !vShowExpression) {
+    return [{ type: RAW, value: (" style=" + (JSON.stringify(staticStyle))) }]
+  } else {
+    return [{
+      type: EXPRESSION,
+      value: ("_ssrStyle(" + (parsedStaticStyle || 'null') + "," + (styleBinding || 'null') + ", " + (vShowExpression
+          ? ("{ display: (" + vShowExpression + ") ? '' : 'none' }")
+          : 'null') + ")")
+    }]
+  }
+}
+
+/*  */
+
+/**
+ * In SSR, the vdom tree is generated only once and never patched, so
+ * we can optimize most element / trees into plain string render functions.
+ * The SSR optimizer walks the AST tree to detect optimizable elements and trees.
+ *
+ * The criteria for SSR optimizability is quite a bit looser than static tree
+ * detection (which is designed for client re-render). In SSR we bail only for
+ * components/slots/custom directives.
+ */
+
+// optimizability constants
+var optimizability = {
+  FALSE: 0,    // whole sub tree un-optimizable
+  FULL: 1,     // whole sub tree optimizable
+  SELF: 2,     // self optimizable but has some un-optimizable children
+  CHILDREN: 3, // self un-optimizable but have fully optimizable children
+  PARTIAL: 4   // self un-optimizable with some un-optimizable children
+};
+
+var isPlatformReservedTag$1;
+
+function optimize$1 (root, options) {
+  if (!root) { return }
+  isPlatformReservedTag$1 = options.isReservedTag || no;
+  walk(root, true);
+}
+
+function walk (node, isRoot) {
+  if (isUnOptimizableTree(node)) {
+    node.ssrOptimizability = optimizability.FALSE;
+    return
+  }
+  // root node or nodes with custom directives should always be a VNode
+  var selfUnoptimizable = isRoot || hasCustomDirective(node);
+  var check = function (child) {
+    if (child.ssrOptimizability !== optimizability.FULL) {
+      node.ssrOptimizability = selfUnoptimizable
+        ? optimizability.PARTIAL
+        : optimizability.SELF;
+    }
+  };
+  if (selfUnoptimizable) {
+    node.ssrOptimizability = optimizability.CHILDREN;
+  }
+  if (node.type === 1) {
+    for (var i = 0, l = node.children.length; i < l; i++) {
+      var child = node.children[i];
+      walk(child);
+      check(child);
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        var block = node.ifConditions[i$1].block;
+        walk(block);
+        check(block);
+      }
+    }
+    if (node.ssrOptimizability == null ||
+      (!isRoot && (node.attrsMap['v-html'] || node.attrsMap['v-text']))
+    ) {
+      node.ssrOptimizability = optimizability.FULL;
+    } else {
+      node.children = optimizeSiblings(node);
+    }
+  } else {
+    node.ssrOptimizability = optimizability.FULL;
+  }
+}
+
+function optimizeSiblings (el) {
+  var children = el.children;
+  var optimizedChildren = [];
+
+  var currentOptimizableGroup = [];
+  var pushGroup = function () {
+    if (currentOptimizableGroup.length) {
+      optimizedChildren.push({
+        type: 1,
+        parent: el,
+        tag: 'template',
+        attrsList: [],
+        attrsMap: {},
+        children: currentOptimizableGroup,
+        ssrOptimizability: optimizability.FULL
+      });
+    }
+    currentOptimizableGroup = [];
+  };
+
+  for (var i = 0; i < children.length; i++) {
+    var c = children[i];
+    if (c.ssrOptimizability === optimizability.FULL) {
+      currentOptimizableGroup.push(c);
+    } else {
+      // wrap fully-optimizable adjacent siblings inside a template tag
+      // so that they can be optimized into a single ssrNode by codegen
+      pushGroup();
+      optimizedChildren.push(c);
+    }
+  }
+  pushGroup();
+  return optimizedChildren
+}
+
+function isUnOptimizableTree (node) {
+  if (node.type === 2 || node.type === 3) { // text or expression
+    return false
+  }
+  return (
+    isBuiltInTag(node.tag) || // built-in (slot, component)
+    !isPlatformReservedTag$1(node.tag) || // custom component
+    !!node.component // "is" component
+  )
+}
+
+var isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
+
+function hasCustomDirective (node) {
+  return (
+    node.type === 1 &&
+    node.directives &&
+    node.directives.some(function (d) { return !isBuiltInDir(d.name); })
+  )
+}
+
+/*  */
+
+// The SSR codegen is essentially extending the default codegen to handle
+// SSR-optimizable nodes and turn them into string render fns. In cases where
+// a node is not optimizable it simply falls back to the default codegen.
+
+// segment types
+var RAW = 0;
+var INTERPOLATION = 1;
+var EXPRESSION = 2;
+
+function generate$1 (
+  ast,
+  options
+) {
+  var state = new CodegenState(options);
+  var code = ast ? genSSRElement(ast, state) : '_c("div")';
+  return {
+    render: ("with(this){return " + code + "}"),
+    staticRenderFns: state.staticRenderFns
+  }
+}
+
+function genSSRElement (el, state) {
+  if (el.for && !el.forProcessed) {
+    return genFor(el, state, genSSRElement)
+  } else if (el.if && !el.ifProcessed) {
+    return genIf(el, state, genSSRElement)
+  } else if (el.tag === 'template' && !el.slotTarget) {
+    return el.ssrOptimizability === optimizability.FULL
+      ? genChildrenAsStringNode(el, state)
+      : genSSRChildren(el, state) || 'void 0'
+  }
+
+  switch (el.ssrOptimizability) {
+    case optimizability.FULL:
+      // stringify whole tree
+      return genStringElement(el, state)
+    case optimizability.SELF:
+      // stringify self and check children
+      return genStringElementWithChildren(el, state)
+    case optimizability.CHILDREN:
+      // generate self as VNode and stringify children
+      return genNormalElement(el, state, true)
+    case optimizability.PARTIAL:
+      // generate self as VNode and check children
+      return genNormalElement(el, state, false)
+    default:
+      // bail whole tree
+      return genElement(el, state)
+  }
+}
+
+function genNormalElement (el, state, stringifyChildren) {
+  var data = el.plain ? undefined : genData$2(el, state);
+  var children = stringifyChildren
+    ? ("[" + (genChildrenAsStringNode(el, state)) + "]")
+    : genSSRChildren(el, state, true);
+  return ("_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")")
+}
+
+function genSSRChildren (el, state, checkSkip) {
+  return genChildren(el, state, checkSkip, genSSRElement, genSSRNode)
+}
+
+function genSSRNode (el, state) {
+  return el.type === 1
+    ? genSSRElement(el, state)
+    : genText(el)
+}
+
+function genChildrenAsStringNode (el, state) {
+  return el.children.length
+    ? ("_ssrNode(" + (flattenSegments(childrenToSegments(el, state))) + ")")
+    : ''
+}
+
+function genStringElement (el, state) {
+  return ("_ssrNode(" + (elementToString(el, state)) + ")")
+}
+
+function genStringElementWithChildren (el, state) {
+  var children = genSSRChildren(el, state, true);
+  return ("_ssrNode(" + (flattenSegments(elementToOpenTagSegments(el, state))) + ",\"</" + (el.tag) + ">\"" + (children ? ("," + children) : '') + ")")
+}
+
+function elementToString (el, state) {
+  return ("(" + (flattenSegments(elementToSegments(el, state))) + ")")
+}
+
+function elementToSegments (el, state) {
+  // v-for / v-if
+  if (el.for && !el.forProcessed) {
+    el.forProcessed = true;
+    return [{
+      type: EXPRESSION,
+      value: genFor(el, state, elementToString, '_ssrList')
+    }]
+  } else if (el.if && !el.ifProcessed) {
+    el.ifProcessed = true;
+    return [{
+      type: EXPRESSION,
+      value: genIf(el, state, elementToString, '"<!---->"')
+    }]
+  } else if (el.tag === 'template') {
+    return childrenToSegments(el, state)
+  }
+
+  var openSegments = elementToOpenTagSegments(el, state);
+  var childrenSegments = childrenToSegments(el, state);
+  var ref = state.options;
+  var isUnaryTag = ref.isUnaryTag;
+  var close = (isUnaryTag && isUnaryTag(el.tag))
+    ? []
+    : [{ type: RAW, value: ("</" + (el.tag) + ">") }];
+  return openSegments.concat(childrenSegments, close)
+}
+
+function elementToOpenTagSegments (el, state) {
+  applyModelTransform(el, state);
+  var binding;
+  var segments = [{ type: RAW, value: ("<" + (el.tag)) }];
+  // attrs
+  if (el.attrs) {
+    segments.push.apply(segments, genAttrSegments(el.attrs));
+  }
+  // domProps
+  if (el.props) {
+    segments.push.apply(segments, genDOMPropSegments(el.props, el.attrs));
+  }
+  // v-bind="object"
+  if ((binding = el.attrsMap['v-bind'])) {
+    segments.push({ type: EXPRESSION, value: ("_ssrAttrs(" + binding + ")") });
+  }
+  // v-bind.prop="object"
+  if ((binding = el.attrsMap['v-bind.prop'])) {
+    segments.push({ type: EXPRESSION, value: ("_ssrDOMProps(" + binding + ")") });
+  }
+  // class
+  if (el.staticClass || el.classBinding) {
+    segments.push.apply(
+      segments,
+      genClassSegments(el.staticClass, el.classBinding)
+    );
+  }
+  // style & v-show
+  if (el.staticStyle || el.styleBinding || el.attrsMap['v-show']) {
+    segments.push.apply(
+      segments,
+      genStyleSegments(
+        el.attrsMap.style,
+        el.staticStyle,
+        el.styleBinding,
+        el.attrsMap['v-show']
+      )
+    );
+  }
+  // _scopedId
+  if (state.options.scopeId) {
+    segments.push({ type: RAW, value: (" " + (state.options.scopeId)) });
+  }
+  segments.push({ type: RAW, value: ">" });
+  return segments
+}
+
+function childrenToSegments (el, state) {
+  var binding;
+  if ((binding = el.attrsMap['v-html'])) {
+    return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
+  }
+  if ((binding = el.attrsMap['v-text'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
+  return el.children
+    ? nodesToSegments(el.children, state)
+    : []
+}
+
+function nodesToSegments (
+  children,
+  state
+) {
+  var segments = [];
+  for (var i = 0; i < children.length; i++) {
+    var c = children[i];
+    if (c.type === 1) {
+      segments.push.apply(segments, elementToSegments(c, state));
+    } else if (c.type === 2) {
+      segments.push({ type: INTERPOLATION, value: c.expression });
+    } else if (c.type === 3) {
+      segments.push({ type: RAW, value: escape(c.text) });
+    }
+  }
+  return segments
+}
+
+function flattenSegments (segments) {
+  var mergedSegments = [];
+  var textBuffer = '';
+
+  var pushBuffer = function () {
+    if (textBuffer) {
+      mergedSegments.push(JSON.stringify(textBuffer));
+      textBuffer = '';
+    }
+  };
+
+  for (var i = 0; i < segments.length; i++) {
+    var s = segments[i];
+    if (s.type === RAW) {
+      textBuffer += s.value;
+    } else if (s.type === INTERPOLATION) {
+      pushBuffer();
+      mergedSegments.push(("_ssrEscape(" + (s.value) + ")"));
+    } else if (s.type === EXPRESSION) {
+      pushBuffer();
+      mergedSegments.push(("(" + (s.value) + ")"));
+    }
+  }
+  pushBuffer();
+
+  return mergedSegments.join('+')
+}
+
+/*  */
+
+var createCompiler$1 = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  var ast = parse(template.trim(), options);
+  optimize$1(ast, options);
+  var code = generate$1(ast, options);
+  return {
+    ast: ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
+var ref$1 = createCompiler$1(baseOptions);
+var compile$1 = ref$1.compile;
+var compileToFunctions$1 = ref$1.compileToFunctions;
+
+/*  */
+
+exports.parseComponent = parseComponent;
+exports.compile = compile;
+exports.compileToFunctions = compileToFunctions;
+exports.ssrCompile = compile$1;
+exports.ssrCompileToFunctions = compileToFunctions$1;
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+})));
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 9797ee92158..b2d09e9bc26 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -33,8 +33,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -49,7 +56,7 @@ function isPlainObject (obj) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -90,7 +97,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -134,9 +141,17 @@ var camelize = cached(function (str) {
 /**
  * Capitalize a string.
  */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
 
-
-
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
 
 /**
  * Simple bind, faster than native
@@ -682,7 +697,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -777,7 +793,8 @@ var config = ({
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -808,15 +825,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -838,7 +853,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -871,23 +886,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -905,14 +947,14 @@ var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
-var supportsPassive = false;
+
 if (inBrowser) {
   try {
     var opts = {};
     Object.defineProperty(opts, 'passive', ({
       get: function get () {
         /* istanbul ignore next */
-        supportsPassive = true;
+        
       }
     })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
@@ -965,45 +1007,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -1026,6 +1063,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -1035,7 +1073,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -1100,6 +1138,62 @@ Dep.prototype.notify = function notify () {
 // watcher being evaluated at any time.
 Dep.target = null;
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+
+
+
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -1185,7 +1279,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -1228,7 +1322,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -1252,7 +1346,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -1335,7 +1429,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1497,11 +1591,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1514,22 +1616,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1542,7 +1652,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1560,6 +1678,16 @@ var defaultStrat = function (parentVal, childVal) {
     : childVal
 };
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1901,7 +2029,15 @@ function getBindingAttr (
   }
 }
 
-function getAndRemoveAttr (el, name) {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
   var val;
   if ((val = el.attrsMap[name]) != null) {
     var list = el.attrsList;
@@ -1912,6 +2048,9 @@ function getAndRemoveAttr (el, name) {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
   return val
 }
 
@@ -2024,11 +2163,6 @@ var style = {
   genData: genData$1
 };
 
-var modules = [
-  klass,
-  style
-];
-
 /*  */
 
 /**
@@ -2070,25 +2204,26 @@ function genAssignmentCode (
   value,
   assignment
 ) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
+  var res = parseModel(value);
+  if (res.key === null) {
     return (value + "=" + assignment)
   } else {
-    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
   }
 }
 
 /**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
  *
- * for loop possible cases:
+ * Possible cases:
  *
  * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
  *
  */
 
@@ -2099,18 +2234,29 @@ var index;
 var expressionPos;
 var expressionEndPos;
 
+
+
 function parseModel (val) {
-  str = val;
-  len = str.length;
-  index = expressionPos = expressionEndPos = 0;
+  len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
+    index = val.lastIndexOf('.');
+    if (index > -1) {
+      return {
+        exp: val.slice(0, index),
+        key: '"' + val.slice(index + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
     }
   }
 
+  str = val;
+  index = expressionPos = expressionEndPos = 0;
+
   while (!eof()) {
     chr = next();
     /* istanbul ignore if */
@@ -2122,8 +2268,8 @@ function parseModel (val) {
   }
 
   return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
   }
 }
 
@@ -2169,246 +2315,62 @@ function parseString (chr) {
 
 /*  */
 
-var warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
+var onRE = /^@|^v-on:/;
+var dirRE = /^v-|^@|^:/;
+var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
 
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
+var argRE = /:(.*)$/;
+var bindRE = /^:|^v-bind:/;
+var modifierRE = /\.[^.]+/g;
 
-  if (process.env.NODE_ENV !== 'production') {
-    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (tag === 'input' && dynamicType) {
-      warn$1(
-        "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
-        "v-model does not support dynamic input types. Use v-if branches instead."
-      );
-    }
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
-    }
-  }
+var decodeHTMLCached = cached(he.decode);
 
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$1(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
+// configurable state
+var warn$1;
+var delimiters;
+var transforms;
+var preTransforms;
+var postTransforms;
+var platformIsPreTag;
+var platformMustUseProp;
+var platformGetTagNamespace;
 
-  // ensure runtime directive metadata
-  return true
-}
 
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
-  );
-  addHandler(el, CHECKBOX_RADIO_TOKEN,
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
 
-function genRadioModel (
-    el,
-    value,
-    modifiers
+function createASTElement (
+  tag,
+  attrs,
+  parent
 ) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
 }
 
-function genSelect (
-    el,
-    value,
-    modifiers
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+  template,
+  options
 ) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
+  warn$1 = options.warn || baseWarn;
 
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
+  platformIsPreTag = options.isPreTag || no;
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
 
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
+  transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
 
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives = {
-  model: model,
-  text: text,
-  html: html
-};
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules,
-  directives: directives,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules)
-};
-
-/*  */
-
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$2;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$2 = options.warn || baseWarn;
-
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
+  delimiters = options.delimiters;
 
   var stack = [];
   var preserveWhitespace = options.preserveWhitespace !== false;
@@ -2421,7 +2383,7 @@ function parse (
   function warnOnce (msg) {
     if (!warned) {
       warned = true;
-      warn$2(msg);
+      warn$1(msg);
     }
   }
 
@@ -2436,7 +2398,7 @@ function parse (
   }
 
   parseHTML(template, {
-    warn: warn$2,
+    warn: warn$1,
     expectHTML: options.expectHTML,
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
@@ -2453,21 +2415,14 @@ function parse (
         attrs = guardIESVGBug(attrs);
       }
 
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
+      var element = createASTElement(tag, attrs, currentParent);
       if (ns) {
         element.ns = ns;
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true;
-        process.env.NODE_ENV !== 'production' && warn$2(
+        process.env.NODE_ENV !== 'production' && warn$1(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
           "<" + tag + ">" + ', as they will not be parsed.'
@@ -2476,7 +2431,7 @@ function parse (
 
       // apply pre-transforms
       for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
+        element = preTransforms[i](element, options) || element;
       }
 
       if (!inVPre) {
@@ -2490,23 +2445,13 @@ function parse (
       }
       if (inVPre) {
         processRawAttrs(element);
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element);
         processIf(element);
         processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
+        // element-scope stuff
+        processElement(element, options);
       }
 
       function checkRootConstraints (el) {
@@ -2564,8 +2509,8 @@ function parse (
         endPre(element);
       }
       // apply post-transforms
-      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
-        postTransforms[i$2](element, options);
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
       }
     },
 
@@ -2659,11 +2604,27 @@ function processRawAttrs (el) {
   }
 }
 
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
     if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
     }
     el.key = exp;
   }
@@ -2682,7 +2643,7 @@ function processFor (el) {
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
     var inMatch = exp.match(forAliasRE);
     if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn$2(
+      process.env.NODE_ENV !== 'production' && warn$1(
         ("Invalid v-for expression: " + exp)
       );
       return
@@ -2729,7 +2690,7 @@ function processIfConditions (el, parent) {
       block: el
     });
   } else if (process.env.NODE_ENV !== 'production') {
-    warn$2(
+    warn$1(
       "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
       "used on element <" + (el.tag) + "> without corresponding v-if."
     );
@@ -2743,7 +2704,7 @@ function findPrevElement (children) {
       return children[i]
     } else {
       if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
-        warn$2(
+        warn$1(
           "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
           "will be ignored."
         );
@@ -2771,21 +2732,38 @@ function processSlot (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name');
     if (process.env.NODE_ENV !== 'production' && el.key) {
-      warn$2(
+      warn$1(
         "`key` does not work on <slot> because slots are abstract outlets " +
         "and can possibly expand into multiple elements. " +
         "Use the key on a wrapping element instead."
       );
     }
   } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && slotScope) {
+        warn$1(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget);
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
     }
   }
 }
@@ -2844,7 +2822,7 @@ function processAttrs (el) {
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
+        addHandler(el, name, value, modifiers, false, warn$1);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
@@ -2863,7 +2841,7 @@ function processAttrs (el) {
       if (process.env.NODE_ENV !== 'production') {
         var expression = parseText(value, delimiters);
         if (expression) {
-          warn$2(
+          warn$1(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
@@ -2903,7 +2881,7 @@ function makeAttrsMap (attrs) {
       process.env.NODE_ENV !== 'production' &&
       map[attrs[i].name] && !isIE && !isEdge
     ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
+      warn$1('duplicate attribute: ' + attrs[i].name);
     }
     map[attrs[i].name] = attrs[i].value;
   }
@@ -2945,7 +2923,7 @@ function checkForAliasModel (el, value) {
   var _el = el;
   while (_el) {
     if (_el.for && _el.alias === value) {
-      warn$2(
+      warn$1(
         "<" + (el.tag) + " v-model=\"" + value + "\">: " +
         "You are binding v-model directly to a v-for iteration alias. " +
         "This will not be able to modify the v-for source array because " +
@@ -2959,6 +2937,272 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      var typeBinding = getBindingAttr(el, 'type');
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "type==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+var model = {
+  preTransformNode: preTransformNode
+};
+
+var modules = [
+  klass,
+  style,
+  model
+];
+
+/*  */
+
+var warn$2;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+
+function model$1 (
+  el,
+  dir,
+  _warn
+) {
+  warn$2 = _warn;
+  var value = dir.value;
+  var modifiers = dir.modifiers;
+  var tag = el.tag;
+  var type = el.attrsMap.type;
+
+  if (process.env.NODE_ENV !== 'production') {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$2(
+        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+        "File inputs are read only. Use a v-on:change listener instead."
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (process.env.NODE_ENV !== 'production') {
+    warn$2(
+      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+      "v-model is not supported on this element type. " +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.'
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    "Array.isArray(" + value + ")" +
+      "?_i(" + value + "," + valueBinding + ")>-1" + (
+        trueValueBinding === 'true'
+          ? (":(" + value + ")")
+          : (":_q(" + value + "," + trueValueBinding + ")")
+      )
+  );
+  addHandler(el, 'change',
+    "var $$a=" + value + "," +
+        '$$el=$event.target,' +
+        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+    'if(Array.isArray($$a)){' +
+      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+          '$$i=_i($$a,$$v);' +
+      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
+      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+    null, true
+  );
+}
+
+function genRadioModel (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+    el,
+    value,
+    modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var selectedVal = "Array.prototype.filter" +
+    ".call($event.target.options,function(o){return o.selected})" +
+    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+    "return " + (number ? '_n(val)' : 'val') + "})";
+
+  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  var code = "var $$selectedVal = " + selectedVal + ";";
+  code = code + " " + (genAssignmentCode(value, assignment));
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  var type = el.attrsMap.type;
+  var ref = modifiers || {};
+  var lazy = ref.lazy;
+  var number = ref.number;
+  var trim = ref.trim;
+  var needCompositionGuard = !lazy && type !== 'range';
+  var event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  var valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = "$event.target.value.trim()";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+
+  var code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = "if($event.target.composing)return;" + code;
+  }
+
+  addProp(el, 'value', ("(" + value + ")"));
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+var directives = {
+  model: model$1,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules,
+  directives: directives,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules)
+};
+
+/*  */
+
 var isStaticKey;
 var isPlatformReservedTag;
 
@@ -3173,6 +3417,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key);
         }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
       } else {
         keys.push(key);
       }
@@ -3202,8 +3454,13 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var alias = keyCodes[key];
-  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
 }
 
 /*  */
@@ -3441,7 +3698,8 @@ function genData$2 (el, state) {
     data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += "slot:" + (el.slotTarget) + ",";
   }
   // scoped slots
@@ -3499,7 +3757,7 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if (process.env.NODE_ENV !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.');
   }
@@ -3526,10 +3784,13 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+  var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
-      : genElement(el, state)) + "}}"
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
 }
 
 function genForScopedSlot (
@@ -3758,10 +4019,14 @@ function checkExpression (exp, text, errors) {
     if (keywordMatch) {
       errors.push(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
       );
     } else {
-      errors.push(("invalid expression: " + (text.trim())));
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
     }
   }
 }
@@ -3785,7 +4050,9 @@ function createCompileToFunctionFn (compile) {
     options,
     vm
   ) {
-    options = options || {};
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
 
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
@@ -3794,7 +4061,7 @@ function createCompileToFunctionFn (compile) {
         new Function('return 1');
       } catch (e) {
         if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn(
+          warn$$1(
             'It seems you are using the standalone build of Vue.js in an ' +
             'environment with Content Security Policy that prohibits unsafe-eval. ' +
             'The template compiler cannot work in this environment. Consider ' +
@@ -3819,7 +4086,7 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn(
+        warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
           compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
           vm
@@ -3844,7 +4111,7 @@ function createCompileToFunctionFn (compile) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn(
+        warn$$1(
           "Failed to generate render function:\n\n" +
           fnGenErrors.map(function (ref) {
             var err = ref.err;
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 89cb71217db..a4f1a2c7fdd 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.4.4",
+  "version": "2.5.0",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",
diff --git a/packages/weex-template-compiler/build.js b/packages/weex-template-compiler/build.js
index 218fbf40053..93913ee0052 100644
--- a/packages/weex-template-compiler/build.js
+++ b/packages/weex-template-compiler/build.js
@@ -48,7 +48,7 @@ function isPlainObject (obj) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -89,7 +89,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -133,9 +133,17 @@ var camelize = cached(function (str) {
 /**
  * Capitalize a string.
  */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
 
-
-
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
 
 /**
  * Simple bind, faster than native
@@ -638,8 +646,6 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
-
-
 function parseText (
   text,
   delimiters
@@ -649,30 +655,23 @@ function parseText (
     return
   }
   var tokens = [];
-  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index, tokenValue;
+  var match, index;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      rawTokens.push(tokenValue = text.slice(lastIndex, index));
-      tokens.push(JSON.stringify(tokenValue));
+      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
-    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    rawTokens.push(tokenValue = text.slice(lastIndex));
-    tokens.push(JSON.stringify(tokenValue));
-  }
-  return {
-    expression: tokens.join('+'),
-    tokens: rawTokens
+    tokens.push(JSON.stringify(text.slice(lastIndex)));
   }
+  return tokens.join('+')
 }
 
 /*  */
@@ -716,25 +715,26 @@ function genAssignmentCode (
   value,
   assignment
 ) {
-  var modelRs = parseModel(value);
-  if (modelRs.idx === null) {
+  var res = parseModel(value);
+  if (res.key === null) {
     return (value + "=" + assignment)
   } else {
-    return ("$set(" + (modelRs.exp) + ", " + (modelRs.idx) + ", " + assignment + ")")
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
   }
 }
 
 /**
- * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
  *
- * for loop possible cases:
+ * Possible cases:
  *
  * - test
- * - test[idx]
- * - test[test1[idx]]
- * - test["a"][idx]
- * - xxx.test[a[a].test1[idx]]
- * - test.xxx.a["asa"][test1[idx]]
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
  *
  */
 
@@ -745,18 +745,29 @@ var index;
 var expressionPos;
 var expressionEndPos;
 
+
+
 function parseModel (val) {
-  str = val;
-  len = str.length;
-  index = expressionPos = expressionEndPos = 0;
+  len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    return {
-      exp: val,
-      idx: null
+    index = val.lastIndexOf('.');
+    if (index > -1) {
+      return {
+        exp: val.slice(0, index),
+        key: '"' + val.slice(index + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
     }
   }
 
+  str = val;
+  index = expressionPos = expressionEndPos = 0;
+
   while (!eof()) {
     chr = next();
     /* istanbul ignore if */
@@ -768,8 +779,8 @@ function parseModel (val) {
   }
 
   return {
-    exp: val.substring(0, expressionPos),
-    idx: val.substring(expressionPos + 1, expressionEndPos)
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
   }
 }
 
@@ -829,7 +840,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -924,7 +936,8 @@ var config = ({
 
 var warn$1 = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -985,7 +998,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -1018,23 +1031,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn$1(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn$1(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -1052,14 +1092,14 @@ var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
-var supportsPassive = false;
+
 if (inBrowser) {
   try {
     var opts = {};
     Object.defineProperty(opts, 'passive', ({
       get: function get () {
         /* istanbul ignore next */
-        supportsPassive = true;
+        
       }
     })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
@@ -1112,45 +1152,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -1173,6 +1208,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -1182,7 +1218,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -1310,7 +1346,15 @@ function getBindingAttr (
   }
 }
 
-function getAndRemoveAttr (el, name) {
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
   var val;
   if ((val = el.attrsMap[name]) != null) {
     var list = el.attrsList;
@@ -1321,6 +1365,9 @@ function getAndRemoveAttr (el, name) {
       }
     }
   }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
   return val
 }
 
@@ -1347,6 +1394,23 @@ var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
 
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
 /**
  * Convert HTML string to AST.
  */
@@ -1381,7 +1445,7 @@ function parse (
     }
   }
 
-  function closeElement (element) {
+  function endPre (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -1389,10 +1453,6 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
-    // apply post-transforms
-    for (var i = 0; i < postTransforms.length; i++) {
-      postTransforms[i](element, options);
-    }
   }
 
   parseHTML(template, {
@@ -1413,14 +1473,7 @@ function parse (
         attrs = guardIESVGBug(attrs);
       }
 
-      var element = {
-        type: 1,
-        tag: tag,
-        attrsList: attrs,
-        attrsMap: makeAttrsMap(attrs),
-        parent: currentParent,
-        children: []
-      };
+      var element = createASTElement(tag, attrs, currentParent);
       if (ns) {
         element.ns = ns;
       }
@@ -1436,7 +1489,7 @@ function parse (
 
       // apply pre-transforms
       for (var i = 0; i < preTransforms.length; i++) {
-        preTransforms[i](element, options);
+        element = preTransforms[i](element, options) || element;
       }
 
       if (!inVPre) {
@@ -1450,23 +1503,13 @@ function parse (
       }
       if (inVPre) {
         processRawAttrs(element);
-      } else {
+      } else if (!element.processed) {
+        // structural directives
         processFor(element);
         processIf(element);
         processOnce(element);
-        processKey(element);
-
-        // determine whether this is a plain element after
-        // removing structural attributes
-        element.plain = !element.key && !attrs.length;
-
-        processRef(element);
-        processSlot(element);
-        processComponent(element);
-        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
-          transforms[i$1](element, options);
-        }
-        processAttrs(element);
+        // element-scope stuff
+        processElement(element, options);
       }
 
       function checkRootConstraints (el) {
@@ -1521,7 +1564,11 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        closeElement(element);
+        endPre(element);
+      }
+      // apply post-transforms
+      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
+        postTransforms[i$1](element, options);
       }
     },
 
@@ -1535,7 +1582,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      closeElement(element);
+      endPre(element);
     },
 
     chars: function chars (text) {
@@ -1567,12 +1614,11 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var res;
-        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+        var expression;
+        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: res.expression,
-            tokens: res.tokens,
+            expression: expression,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -1616,6 +1662,22 @@ function processRawAttrs (el) {
   }
 }
 
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
@@ -1735,14 +1797,31 @@ function processSlot (el) {
       );
     }
   } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && slotScope) {
+        warn(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      el.slotScope = slotScope;
+    }
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
-      addAttr(el, 'slot', slotTarget);
-    }
-    if (el.tag === 'template') {
-      el.slotScope = getAndRemoveAttr(el, 'scope');
+      // only for non-scoped slots.
+      if (!el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
     }
   }
 }
@@ -1818,8 +1897,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        var res = parseText(value, delimiters);
-        if (res) {
+        var expression = parseText(value, delimiters);
+        if (expression) {
           warn(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -2130,6 +2209,14 @@ function genHandler (
         if (keyCodes[key]) {
           keys.push(key);
         }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
       } else {
         keys.push(key);
       }
@@ -2159,8 +2246,13 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var alias = keyCodes[key];
-  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
 }
 
 /*  */
@@ -2225,6 +2317,60 @@ Dep.prototype.notify = function notify () {
 // watcher being evaluated at any time.
 Dep.target = null;
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+
+
+
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -2310,7 +2456,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -2353,7 +2499,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -2377,7 +2523,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -2460,7 +2606,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -2936,7 +3082,8 @@ function genData (el, state) {
     data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
   }
   // slot target
-  if (el.slotTarget) {
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
     data += "slot:" + (el.slotTarget) + ",";
   }
   // scoped slots
@@ -2994,7 +3141,7 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if (process.env.NODE_ENV !== 'production' && (
-    el.children.length > 1 || ast.type !== 1
+    el.children.length !== 1 || ast.type !== 1
   )) {
     state.warn('Inline-template components must have exactly one child element.');
   }
@@ -3021,10 +3168,13 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
-  return "{key:" + key + ",fn:function(" + (String(el.attrsMap.scope)) + "){" +
+  var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'void 0'
-      : genElement(el, state)) + "}}"
+      ? el.if
+        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
 }
 
 function genForScopedSlot (
@@ -3280,7 +3430,9 @@ function createCompileToFunctionFn (compile) {
     options,
     vm
   ) {
-    options = options || {};
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn$1;
+    delete options.warn;
 
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
@@ -3289,7 +3441,7 @@ function createCompileToFunctionFn (compile) {
         new Function('return 1');
       } catch (e) {
         if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$1(
+          warn$$1(
             'It seems you are using the standalone build of Vue.js in an ' +
             'environment with Content Security Policy that prohibits unsafe-eval. ' +
             'The template compiler cannot work in this environment. Consider ' +
@@ -3314,7 +3466,7 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn$1(
+        warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
           compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
           vm
@@ -3339,7 +3491,7 @@ function createCompileToFunctionFn (compile) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn$1(
+        warn$$1(
           "Failed to generate render function:\n\n" +
           fnGenErrors.map(function (ref) {
             var err = ref.err;
@@ -3474,7 +3626,7 @@ function parseStaticClass (staticClass, options) {
       var result = parseText(name, options.delimiters);
       if (result) {
         dynamic = true;
-        return result.expression
+        return result
       }
       return JSON.stringify(name)
     });
@@ -3546,7 +3698,7 @@ function parseStaticStyle (staticStyle, options) {
       var dynamicValue = parseText(value, options.delimiters);
       if (dynamicValue) {
         dynamic = true;
-        return key + ':' + dynamicValue.expression
+        return key + ':' + dynamicValue
       }
       return key + ':' + JSON.stringify(value)
     }).filter(function (result) { return result; });
@@ -3616,63 +3768,7 @@ var append = {
   genData: genData$3
 };
 
-/*  */
-
-function genText$1 (node) {
-  var value = node.type === 3
-    ? node.text
-    : node.type === 2
-      ? node.tokens.length === 1
-        ? node.tokens[0]
-        : node.tokens
-      : '';
-  return JSON.stringify(value)
-}
-
-function transformText (el) {
-  // weex <text> can only contain text, so the parser
-  // always generates a single child.
-  addAttr(el, 'value', genText$1(el.children[0]));
-  el.children = [];
-  el.plain = false;
-}
-
-/*  */
-
-var currentRecycleList = null;
-
-function preTransformNode$1 (el) {
-  if (el.tag === 'recycle-list') {
-    currentRecycleList = el;
-  }
-}
-
-function transformNode$3 (el) {
-  if (currentRecycleList) {
-    // TODO
-  }
-}
-
-function postTransformNode (el) {
-  if (currentRecycleList) {
-    // <text>: transform children text into value attr
-    if (el.tag === 'text') {
-      transformText(el);
-    }
-  }
-  if (el === currentRecycleList) {
-    currentRecycleList = null;
-  }
-}
-
-var recycleList = {
-  preTransformNode: preTransformNode$1,
-  transformNode: transformNode$3,
-  postTransformNode: postTransformNode
-};
-
 var modules = [
-  recycleList,
   klass,
   style,
   props,
@@ -3718,7 +3814,7 @@ var directives = {
   model: model
 };
 
-/* globals renderer */
+/* globals document */
 
 var isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +

From 0948d999f2fddf9f90991956493f976273c5da1f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 23:07:14 -0400
Subject: [PATCH 173/911] build: release 2.5.0

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index e0d856c446e..eedae71edf3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.4.4",
+  "version": "2.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 7d9033a3e35..a4bfbf7c7a6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.4.4",
+  "version": "2.5.0",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 1be48d0a132c80e02bb475e7c779729df5980d4c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Oct 2017 23:43:57 -0400
Subject: [PATCH 174/911] types: update types for config.ignoredElements

---
 src/core/config.js     | 2 +-
 types/test/vue-test.ts | 1 +
 types/vue.d.ts         | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/core/config.js b/src/core/config.js
index 95663de8a6a..18fc3d947ee 100644
--- a/src/core/config.js
+++ b/src/core/config.js
@@ -17,7 +17,7 @@ export type Config = {
   devtools: boolean;
   errorHandler: ?(err: Error, vm: Component, info: string) => void;
   warnHandler: ?(msg: string, vm: Component, trace: string) => void;
-  ignoredElements: Array<string>;
+  ignoredElements: Array<string | RegExp>;
   keyCodes: { [key: string]: number | Array<number> };
 
   // platform
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index e497c60242a..031a909b67a 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -72,6 +72,7 @@ class Test extends Vue {
       }
     };
     config.keyCodes = { esc: 27 };
+    config.ignoredElements = ['foo', /^ion-/];
   }
 
   static testMethods() {
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 67c5bd04494..0672226601b 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -114,7 +114,7 @@ export interface VueConstructor<V extends Vue = Vue> {
     performance: boolean;
     errorHandler(err: Error, vm: Vue, info: string): void;
     warnHandler(msg: string, vm: Vue, trace: string): void;
-    ignoredElements: string[];
+    ignoredElements: (string | RegExp)[];
     keyCodes: { [key: string]: number | number[] };
   }
 }

From f38d44e23bc9f3eda950a9436205f42be006abfc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 00:20:59 -0400
Subject: [PATCH 175/911] ci: update caching setup + update weex runtime

---
 .circleci/config.yml                           | 10 +++++++++-
 package-lock.json                              |  6 +++---
 package.json                                   |  2 +-
 packages/vue-server-renderer/package-lock.json |  8 +++++++-
 4 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2426aadc6cd..02190c801e2 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -15,13 +15,21 @@ jobs:
             - v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
             - v1-vue-{{ .Branch }}-
             - v1-vue-
+      - restore_cache:
+          keys:
+            - v1-vue-ssr-{{ .Branch }}-{{ checksum "packages/vue-server-renderer/package-lock.json" }}
+            - v1-vue-ssr-{{ .Branch }}-
+            - v1-vue-ssr-
       - run: npm install
       - run: cd packages/vue-server-renderer && npm install
       - save_cache:
           key: v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
           paths:
             - node_modules/
-            - packages/vue-server-renderer/node_modules
+      - save_cache:
+          key: v1-vue-ssr-{{ .Branch }}-{{ checksum "packages/vue-server-renderer/package-lock.json" }}
+          paths:
+            - packages/vue-server-renderer/node_modules/
       - persist_to_workspace:
           root: ~/project
           paths:
diff --git a/package-lock.json b/package-lock.json
index eedae71edf3..c1055fbace9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9233,9 +9233,9 @@
       }
     },
     "weex-js-runtime": {
-      "version": "0.22.0",
-      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.22.0.tgz",
-      "integrity": "sha512-NF/QvX9Ms30V/Il76+Jj+ETb+VaSkj8JKWU/HLwXvn/sgy9Z2GvPmJjsf7/Y/xaXgyW0QejN4g5JtHPPTPOUOw==",
+      "version": "0.23.0",
+      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.23.0.tgz",
+      "integrity": "sha512-0K2jfuqJ2yQ4NgBI7RcXsBz1WrRjuWLlEtLMd7OA78HCdSgZPDUXH/vL0ecaqL7IGzvEsTl9y9echhoWKLqj5w==",
       "dev": true
     },
     "which": {
diff --git a/package.json b/package.json
index a4bfbf7c7a6..54484650fe7 100644
--- a/package.json
+++ b/package.json
@@ -125,7 +125,7 @@
     "typescript": "^2.5.2",
     "uglify-js": "^3.0.15",
     "webpack": "^2.6.1",
-    "weex-js-runtime": "^0.22.0"
+    "weex-js-runtime": "^0.23.0"
   },
   "config": {
     "commitizen": {
diff --git a/packages/vue-server-renderer/package-lock.json b/packages/vue-server-renderer/package-lock.json
index f8ab4e7e8da..dab6cd47702 100644
--- a/packages/vue-server-renderer/package-lock.json
+++ b/packages/vue-server-renderer/package-lock.json
@@ -360,6 +360,7 @@
         "babel-core": {
           "version": "6.26.0",
           "bundled": true,
+          "dev": true,
           "requires": {
             "babel-code-frame": "6.26.0",
             "babel-generator": "6.26.0",
@@ -488,6 +489,7 @@
         "babel-helpers": {
           "version": "6.24.1",
           "bundled": true,
+          "dev": true,
           "requires": {
             "babel-runtime": "6.26.0",
             "babel-template": "6.26.0"
@@ -813,6 +815,7 @@
         "babel-register": {
           "version": "6.26.0",
           "bundled": true,
+          "dev": true,
           "requires": {
             "babel-core": "6.26.0",
             "babel-runtime": "6.26.0",
@@ -1688,7 +1691,8 @@
         },
         "convert-source-map": {
           "version": "1.5.0",
-          "bundled": true
+          "bundled": true,
+          "dev": true
         },
         "cookie": {
           "version": "0.3.1",
@@ -3864,6 +3868,7 @@
         "home-or-tmp": {
           "version": "2.0.0",
           "bundled": true,
+          "dev": true,
           "requires": {
             "os-tmpdir": "1.0.2"
           }
@@ -6376,6 +6381,7 @@
         "source-map-support": {
           "version": "0.4.16",
           "bundled": true,
+          "dev": true,
           "requires": {
             "source-map": "0.5.7"
           }

From 1f84dd1c2488d12ef144d4b548b0e80647f9403c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 01:09:25 -0400
Subject: [PATCH 176/911] fix: fix empty array edge case in normalizeChildren

fix #6790
---
 src/core/vdom/helpers/normalize-children.js     | 16 +++++++++-------
 test/unit/modules/vdom/patch/edge-cases.spec.js |  9 +++++++++
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-children.js b/src/core/vdom/helpers/normalize-children.js
index d0010c92ca8..a4622ef44dc 100644
--- a/src/core/vdom/helpers/normalize-children.js
+++ b/src/core/vdom/helpers/normalize-children.js
@@ -49,14 +49,16 @@ function normalizeArrayChildren (children: any, nestedIndex?: string): Array<VNo
     lastIndex = res.length - 1
     last = res[lastIndex]
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`)
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]: any).text)
-        c.shift()
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`)
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]: any).text)
+          c.shift()
+        }
+        res.push.apply(res, c)
       }
-      res.push.apply(res, c)
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 05135246b36..4d4cfea855f 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -189,4 +189,13 @@ describe('vdom patch: edge cases', () => {
       expect(vm.$refs.foo.$refs.bar.$el.className).toBe(`hello`)
     }).then(done)
   })
+
+  // #6790
+  it('should not render undefined for empty nested arrays', () => {
+    const vm = new Vue({
+      template: `<div><template v-for="i in emptyArr"></template></div>`,
+      data: { emptyArr: [] }
+    }).$mount()
+    expect(vm.$el.textContent).toBe('')
+  })
 })

From 5a15a8d2089bb833b892123c31a2ca04a511c4c8 Mon Sep 17 00:00:00 2001
From: JounQin <admin@1stg.me>
Date: Fri, 13 Oct 2017 20:52:34 +0800
Subject: [PATCH 177/911] fix(ssr): add semicolon before self-removal script
 (#6794)

---
 src/server/template-renderer/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index 680e1713a92..a1078243a8a 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -192,7 +192,7 @@ export default class TemplateRenderer {
       windowKey = '__INITIAL_STATE__'
     } = options || {}
     const autoRemove = process.env.NODE_ENV === 'production'
-      ? '(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
+      ? ';(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
       : ''
     return context[contextKey]
       ? `<script>window.${windowKey}=${

From 8645e5f04aff8b0eacd617bbcf2395615c25d68b Mon Sep 17 00:00:00 2001
From: Huo Chunyang <HcySunYang@outlook.com>
Date: Fri, 13 Oct 2017 20:53:06 +0800
Subject: [PATCH 178/911] refactor: remove unnecessary condition (#6795)

---
 src/core/util/options.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index c42245e0389..3be38b8e56b 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -286,7 +286,7 @@ function normalizeProps (options: Object, vm: ?Component) {
         ? val
         : { type: val }
     }
-  } else if (process.env.NODE_ENV !== 'production' && props) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       `Invalid value for option "props": expected an Array or an Object, ` +
       `but got ${toRawType(props)}.`,

From 15031b85427df5409f0bc4c10589cc6259f8a5b2 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Fri, 13 Oct 2017 14:55:02 +0200
Subject: [PATCH 179/911] fix(v-model): allow arbitrary naems for type binding
 (#6802)

Fix #6800
---
 src/platforms/web/compiler/modules/model.js      |  4 ++--
 .../features/directives/model-dynamic.spec.js    | 16 ++++++++++------
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/src/platforms/web/compiler/modules/model.js b/src/platforms/web/compiler/modules/model.js
index 4b14490cef6..61657d1fa43 100644
--- a/src/platforms/web/compiler/modules/model.js
+++ b/src/platforms/web/compiler/modules/model.js
@@ -36,7 +36,7 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
       addRawAttr(branch0, 'type', 'checkbox')
       processElement(branch0, options)
       branch0.processed = true // prevent it from double-processed
-      branch0.if = `type==='checkbox'` + ifConditionExtra
+      branch0.if = `(${typeBinding})==='checkbox'` + ifConditionExtra
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -47,7 +47,7 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
       addRawAttr(branch1, 'type', 'radio')
       processElement(branch1, options)
       addIfCondition(branch0, {
-        exp: `type==='radio'` + ifConditionExtra,
+        exp: `(${typeBinding})==='radio'` + ifConditionExtra,
         block: branch1
       })
       // 3. other
diff --git a/test/unit/features/directives/model-dynamic.spec.js b/test/unit/features/directives/model-dynamic.spec.js
index 16d990a5d01..eb193f19bdf 100644
--- a/test/unit/features/directives/model-dynamic.spec.js
+++ b/test/unit/features/directives/model-dynamic.spec.js
@@ -4,15 +4,15 @@ describe('Directive v-model dynamic input type', () => {
   it('should work', done => {
     const vm = new Vue({
       data: {
-        type: null,
+        inputType: null,
         test: 'b'
       },
-      template: `<input :type="type" v-model="test">`
+      template: `<input :type="inputType" v-model="test">`
     }).$mount()
     document.body.appendChild(vm.$el)
 
     // test text
-    assertInputWorks(vm).then(done)
+    assertInputWorks(vm, 'inputType').then(done)
   })
 
   it('with v-if', done => {
@@ -87,7 +87,11 @@ describe('Directive v-model dynamic input type', () => {
   })
 })
 
-function assertInputWorks (vm, chain) {
+function assertInputWorks (vm, type, chain) {
+  if (typeof type !== 'string') {
+    if (!chain) chain = type
+    type = 'type'
+  }
   if (!chain) chain = waitForUpdate()
   chain.then(() => {
     expect(vm.$el.value).toBe('b')
@@ -99,7 +103,7 @@ function assertInputWorks (vm, chain) {
     expect(vm.test).toBe('c')
   }).then(() => {
     // change it to password
-    vm.type = 'password'
+    vm[type] = 'password'
     vm.test = 'b'
   }).then(() => {
     expect(vm.$el.type).toBe('password')
@@ -109,7 +113,7 @@ function assertInputWorks (vm, chain) {
     expect(vm.test).toBe('c')
   }).then(() => {
     // change it to checkbox...
-    vm.type = 'checkbox'
+    vm[type] = 'checkbox'
   }).then(() => {
     expect(vm.$el.type).toBe('checkbox')
     expect(vm.$el.checked).toBe(true)

From 60b1af9e02b93d9223d2ed1f23e0a618537a4c96 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Fri, 13 Oct 2017 21:05:53 +0800
Subject: [PATCH 180/911] fix(transition-group): work around rollup tree
 shaking (#6796)

fix #6792
---
 src/platforms/web/runtime/components/transition-group.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
index b0133d71b3c..219ff01cf54 100644
--- a/src/platforms/web/runtime/components/transition-group.js
+++ b/src/platforms/web/runtime/components/transition-group.js
@@ -101,8 +101,9 @@ export default {
     children.forEach(applyTranslation)
 
     // force reflow to put everything in position
-    const body: any = document.body
-    const f: number = body.offsetHeight // eslint-disable-line
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight
 
     children.forEach((c: VNode) => {
       if (c.data.moved) {

From 5665eaf985a56cfd183ce8ce93c4d813edbd2cf8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 09:41:52 -0400
Subject: [PATCH 181/911] fix: backwards compat with checkbox code generated in
 < 2.5

fix #6803
---
 .../web/compiler/directives/model.js          |  1 +
 src/platforms/web/runtime/modules/events.js   |  9 +++-
 .../modules/vdom/patch/edge-cases.spec.js     | 48 +++++++++++++++++++
 3 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 4e97350fe86..98d4259cf98 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -9,6 +9,7 @@ let warn
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 export const RANGE_TOKEN = '__r'
+export const CHECKBOX_RADIO_TOKEN = '__c'
 
 export default function model (
   el: ASTElement,
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index da052deb56d..842cf2177d6 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -3,7 +3,7 @@
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
 import { isIE, supportsPassive } from 'core/util/env'
-import { RANGE_TOKEN } from 'web/compiler/directives/model'
+import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
 
 // normalize v-model event tokens that can only be determined at runtime.
 // it's important to place the event as the first in the array because
@@ -17,6 +17,13 @@ function normalizeEvents (on) {
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || [])
     delete on[RANGE_TOKEN]
   }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || [])
+    delete on[CHECKBOX_RADIO_TOKEN]
+  }
 }
 
 let target: HTMLElement
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 4d4cfea855f..7e140534173 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -198,4 +198,52 @@ describe('vdom patch: edge cases', () => {
     }).$mount()
     expect(vm.$el.textContent).toBe('')
   })
+
+  // #6803
+  it('backwards compat with checkbox code generated before 2.4', () => {
+    const spy = jasmine.createSpy()
+    const vm = new Vue({
+      data: {
+        label: 'foobar',
+        name: 'foobar'
+      },
+      computed: {
+        value: {
+          get () {
+            return 1
+          },
+          set: spy
+        }
+      },
+      render (h) {
+        const _vm = this
+        return h('div', {},
+          [h('input', {
+            directives: [{
+              name: 'model',
+              rawName: 'v-model',
+              value: (_vm.value),
+              expression: 'value'
+            }],
+            attrs: {
+              'type': 'radio',
+              'name': _vm.name
+            },
+            domProps: {
+              'value': _vm.label,
+              'checked': _vm._q(_vm.value, _vm.label)
+            },
+            on: {
+              '__c': function ($event) {
+                _vm.value = _vm.label
+              }
+            }
+          })])
+      }
+    }).$mount()
+
+    document.body.appendChild(vm.$el)
+    vm.$el.children[0].click()
+    expect(spy).toHaveBeenCalled()
+  })
 })

From 08a7fb539f9d3ab5b08a3c6cec9a6628929be3be Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 09:59:23 -0400
Subject: [PATCH 182/911] fix: v-on="object" listeners should fire after
 high-priority ones

fix #6805
---
 .../render-helpers/bind-object-listeners.js   |  2 +-
 test/unit/features/directives/on.spec.js      | 43 ++++++++++++++++++-
 2 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/render-helpers/bind-object-listeners.js b/src/core/instance/render-helpers/bind-object-listeners.js
index e97540fdf44..5bfc7514323 100644
--- a/src/core/instance/render-helpers/bind-object-listeners.js
+++ b/src/core/instance/render-helpers/bind-object-listeners.js
@@ -14,7 +14,7 @@ export function bindObjectListeners (data: any, value: any): VNodeData {
       for (const key in value) {
         const existing = on[key]
         const ours = value[key]
-        on[key] = existing ? [].concat(ours, existing) : ours
+        on[key] = existing ? [].concat(existing, ours) : ours
       }
     }
   }
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index b65ec37948e..a32bcaab2da 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -759,7 +759,7 @@ describe('Directive v-on', () => {
     const mouseup = jasmine.createSpy('mouseup')
     const mousedown = jasmine.createSpy('mousedown')
 
-    var vm = new Vue({
+    vm = new Vue({
       el,
       template: `
         <foo-button
@@ -798,6 +798,47 @@ describe('Directive v-on', () => {
     expect(mousedown.calls.count()).toBe(1)
   })
 
+  // #6805 (v-on="object" bind order problem)
+  it('object syntax (no argument): should fire after high-priority listeners', done => {
+    const MyCheckbox = {
+      template: '<input type="checkbox" v-model="model" v-on="$listeners">',
+      props: {
+        value: false
+      },
+      computed: {
+        model: {
+          get () {
+            return this.value
+          },
+          set (val) {
+            this.$emit('input', val)
+          }
+        }
+      }
+    }
+
+    vm = new Vue({
+      el,
+      template: `
+        <div>
+          <my-checkbox v-model="check" @change="change"></my-checkbox>
+        </div>
+      `,
+      components: { MyCheckbox },
+      data: {
+        check: false
+      },
+      methods: {
+        change () {
+          expect(this.check).toBe(true)
+          done()
+        }
+      }
+    })
+
+    vm.$el.querySelector('input').click()
+  })
+
   it('warn object syntax with modifier', () => {
     new Vue({
       template: `<button v-on.self="{}"></button>`

From 2b3e1a0a964c21d405f67479a9960c2d00f235b4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 10:14:31 -0400
Subject: [PATCH 183/911] build: build 2.5.1

---
 dist/vue.common.js                            |   42 +-
 dist/vue.esm.js                               |   42 +-
 dist/vue.js                                   |   42 +-
 dist/vue.min.js                               |    4 +-
 dist/vue.runtime.common.js                    |   36 +-
 dist/vue.runtime.esm.js                       |   36 +-
 dist/vue.runtime.js                           |   36 +-
 dist/vue.runtime.min.js                       |    4 +-
 packages/vue-server-renderer/basic.js         |   25 +-
 packages/vue-server-renderer/build.js         |   29 +-
 .../vue-server-renderer/package-lock.json     |    2 +-
 packages/vue-server-renderer/package.json     |    2 +-
 packages/vue-template-compiler/browser.js     |    5 +-
 packages/vue-template-compiler/build.js       |    5 +-
 packages/vue-template-compiler/package.json   |    2 +-
 packages/weex-template-compiler/build.js      |   87 +-
 packages/weex-vue-framework/factory.js        | 2114 ++++++++++-------
 packages/weex-vue-framework/index.js          |  263 +-
 18 files changed, 1571 insertions(+), 1205 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index e0c90b8d3fd..0bee597551d 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1466,7 +1466,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && props) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -2095,14 +2095,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
-      }
-      res.push.apply(res, c);
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -3813,7 +3815,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
@@ -4897,7 +4899,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.0';
+Vue$3.version = '2.5.1';
 
 /*  */
 
@@ -6554,6 +6556,7 @@ var warn$1;
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
 
 function model (
   el,
@@ -6717,6 +6720,13 @@ function normalizeEvents (on) {
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
 }
 
 var target$1;
@@ -8075,6 +8085,10 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -9331,7 +9345,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch0, 'type', 'checkbox');
       processElement(branch0, options);
       branch0.processed = true; // prevent it from double-processed
-      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -9342,7 +9356,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch1, 'type', 'radio');
       processElement(branch1, options);
       addIfCondition(branch0, {
-        exp: "type==='radio'" + ifConditionExtra,
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
         block: branch1
       });
       // 3. other
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 6525b95628a..6bfa8c8d22d 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1464,7 +1464,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && props) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -2093,14 +2093,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
-      }
-      res.push.apply(res, c);
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -3811,7 +3813,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
@@ -4895,7 +4897,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.0';
+Vue$3.version = '2.5.1';
 
 /*  */
 
@@ -6552,6 +6554,7 @@ var warn$1;
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
 
 function model (
   el,
@@ -6715,6 +6718,13 @@ function normalizeEvents (on) {
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
 }
 
 var target$1;
@@ -8073,6 +8083,10 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -9329,7 +9343,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch0, 'type', 'checkbox');
       processElement(branch0, options);
       branch0.processed = true; // prevent it from double-processed
-      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -9340,7 +9354,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch1, 'type', 'radio');
       processElement(branch1, options);
       addIfCondition(branch0, {
-        exp: "type==='radio'" + ifConditionExtra,
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
         block: branch1
       });
       // 3. other
diff --git a/dist/vue.js b/dist/vue.js
index 0b4d59d2876..36e01a47307 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1470,7 +1470,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if ("development" !== 'production' && props) {
+  } else {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -2099,14 +2099,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
-      }
-      res.push.apply(res, c);
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -3809,7 +3811,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
@@ -4886,7 +4888,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.0';
+Vue$3.version = '2.5.1';
 
 /*  */
 
@@ -6543,6 +6545,7 @@ var warn$1;
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
 
 function model (
   el,
@@ -6706,6 +6709,13 @@ function normalizeEvents (on) {
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
 }
 
 var target$1;
@@ -8064,6 +8074,10 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
@@ -9320,7 +9334,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch0, 'type', 'checkbox');
       processElement(branch0, options);
       branch0.processed = true; // prevent it from double-processed
-      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -9331,7 +9345,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch1, 'type', 'radio');
       processElement(branch1, options);
       addIfCondition(branch0, {
-        exp: "type==='radio'" + ifConditionExtra,
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
         block: branch1
       });
       // 3. other
diff --git a/dist/vue.min.js b/dist/vue.min.js
index e33b167f6c9..f3bb4e4ec5e 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index ef55c7b2d5e..4c620cea83e 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1462,7 +1462,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && props) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -2091,14 +2091,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
       }
-      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -3809,7 +3811,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
@@ -4893,7 +4895,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.0';
+Vue$3.version = '2.5.1';
 
 /*  */
 
@@ -6205,6 +6207,7 @@ var klass = {
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
 
 /*  */
 
@@ -6220,6 +6223,13 @@ function normalizeEvents (on) {
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
 }
 
 var target$1;
@@ -7578,6 +7588,10 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 7e443c35624..0040b3ffc5d 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1460,7 +1460,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && props) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -2089,14 +2089,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
       }
-      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -3807,7 +3809,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
@@ -4891,7 +4893,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.0';
+Vue$3.version = '2.5.1';
 
 /*  */
 
@@ -6203,6 +6205,7 @@ var klass = {
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
 
 /*  */
 
@@ -6218,6 +6221,13 @@ function normalizeEvents (on) {
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
 }
 
 var target$1;
@@ -7576,6 +7586,10 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 2d24ff0defb..e0c7d624a36 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1466,7 +1466,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if ("development" !== 'production' && props) {
+  } else {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -2095,14 +2095,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
       }
-      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -3805,7 +3807,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
@@ -4882,7 +4884,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.0';
+Vue$3.version = '2.5.1';
 
 /*  */
 
@@ -6194,6 +6196,7 @@ var klass = {
 // in some cases, the event used has to be determined at runtime
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
 
 /*  */
 
@@ -6209,6 +6212,13 @@ function normalizeEvents (on) {
     on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
     delete on[RANGE_TOKEN];
   }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
 }
 
 var target$1;
@@ -7567,6 +7577,10 @@ var TransitionGroup = {
     children.forEach(applyTranslation);
 
     // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
     children.forEach(function (c) {
       if (c.data.moved) {
         var el = c.elm;
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 494f5910e65..4a56046c14d 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.0
+ * Vue.js v2.5.1
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Wn.call(t)}function s(t){return"[object RegExp]"===Wn.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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r=t._vOptions,o=t._vOptions=[].map.call(t.options,Tn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return In(t,o)}):e.value!==e.oldValue&&In(e.value,o))&&Pn(t,"change")}}},show:{bind:function(t,e,n){var r=e.value,o=(n=Nn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,$n(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var 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s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Un(this),u=this._vnode,l=Mn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Vn(a,l)&&!pt(l)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,rt(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Fn(t,i);if("in-out"===r){if(pt(a))return u;var d,p=function(){d()};rt(c,"afterEnter",p),rt(c,"enterCancelled",p),rt(f,"delayLeave",function(t){d=t})}}return i}}},ei=y({tag:String,moveClass:String},Yo);delete ei.mode;var ni={Transition:ti,TransitionGroup:{props:ei,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Un(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Bn),t.forEach(Hn),t.forEach(zn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;gn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qo,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qo,t),n._moveCb=null,_n(n,e))})}}))},methods:{hasMove:function(t,e){if(!Bo)return!1;if(this._hasMove)return this._hasMove;var 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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 579c45d63af..4e9bd8ced79 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -1592,7 +1592,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if ("development" !== 'production' && props) {
+  } else {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -4132,7 +4132,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch0, 'type', 'checkbox');
       processElement(branch0, options);
       branch0.processed = true; // prevent it from double-processed
-      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -4143,7 +4143,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch1, 'type', 'radio');
       processElement(branch1, options);
       addIfCondition(branch0, {
-        exp: "type==='radio'" + ifConditionExtra,
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
         block: branch1
       });
       // 3. other
@@ -4187,6 +4187,7 @@ var warn$2;
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
 
+
 function model$1 (
   el,
   dir,
@@ -5748,14 +5749,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
       }
-      res.push.apply(res, c);
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -7174,7 +7177,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index b01470f3dbf..c6aa16a1219 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -1594,7 +1594,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && props) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -3871,7 +3871,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch0, 'type', 'checkbox');
       processElement(branch0, options);
       branch0.processed = true; // prevent it from double-processed
-      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -3882,7 +3882,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch1, 'type', 'radio');
       processElement(branch1, options);
       addIfCondition(branch0, {
-        exp: "type==='radio'" + ifConditionExtra,
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
         block: branch1
       });
       // 3. other
@@ -3926,6 +3926,7 @@ var warn$2;
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
 
+
 function model$1 (
   el,
   dir,
@@ -5487,14 +5488,16 @@ function normalizeArrayChildren (children, nestedIndex) {
     lastIndex = res.length - 1;
     last = res[lastIndex];
     //  nested
-    if (Array.isArray(c) && c.length > 0) {
-      c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-      // merge adjacent text nodes
-      if (isTextNode(c[0]) && isTextNode(last)) {
-        res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-        c.shift();
-      }
-      res.push.apply(res, c);
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
@@ -6905,7 +6908,7 @@ function bindObjectListeners (data, value) {
       for (var key in value) {
         var existing = on[key];
         var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
   }
@@ -8092,7 +8095,7 @@ TemplateRenderer.prototype.renderState = function renderState (context, options)
     var contextKey = ref.contextKey; if ( contextKey === void 0 ) contextKey = 'state';
     var windowKey = ref.windowKey; if ( windowKey === void 0 ) windowKey = '__INITIAL_STATE__';
   var autoRemove = process.env.NODE_ENV === 'production'
-    ? '(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
+    ? ';(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
     : '';
   return context[contextKey]
     ? ("<script>window." + windowKey + "=" + (serialize(context[contextKey], { isJSON: true })) + autoRemove + "</script>")
diff --git a/packages/vue-server-renderer/package-lock.json b/packages/vue-server-renderer/package-lock.json
index dab6cd47702..427423b4732 100644
--- a/packages/vue-server-renderer/package-lock.json
+++ b/packages/vue-server-renderer/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.0",
+  "version": "2.5.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 264cdf83e1b..d8bd0f70489 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.0",
+  "version": "2.5.1",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index bb7ae9dcb13..cad795462fd 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -3359,7 +3359,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch0, 'type', 'checkbox');
       processElement(branch0, options);
       branch0.processed = true; // prevent it from double-processed
-      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -3370,7 +3370,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch1, 'type', 'radio');
       processElement(branch1, options);
       addIfCondition(branch0, {
-        exp: "type==='radio'" + ifConditionExtra,
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
         block: branch1
       });
       // 3. other
@@ -3414,6 +3414,7 @@ var warn$2;
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
 
+
 function model$1 (
   el,
   dir,
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index b2d09e9bc26..43d9e55c775 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -2961,7 +2961,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch0, 'type', 'checkbox');
       processElement(branch0, options);
       branch0.processed = true; // prevent it from double-processed
-      branch0.if = "type==='checkbox'" + ifConditionExtra;
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
       addIfCondition(branch0, {
         exp: branch0.if,
         block: branch0
@@ -2972,7 +2972,7 @@ function preTransformNode (el, options) {
       addRawAttr(branch1, 'type', 'radio');
       processElement(branch1, options);
       addIfCondition(branch0, {
-        exp: "type==='radio'" + ifConditionExtra,
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
         block: branch1
       });
       // 3. other
@@ -3016,6 +3016,7 @@ var warn$2;
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
 
+
 function model$1 (
   el,
   dir,
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index a4f1a2c7fdd..453ac294aa8 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.0",
+  "version": "2.5.1",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",
diff --git a/packages/weex-template-compiler/build.js b/packages/weex-template-compiler/build.js
index 93913ee0052..81f77215c19 100644
--- a/packages/weex-template-compiler/build.js
+++ b/packages/weex-template-compiler/build.js
@@ -32,8 +32,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -968,15 +975,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -2337,6 +2342,8 @@ var VNode = function VNode (
   this.ns = undefined;
   this.context = context;
   this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -2768,11 +2775,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -2785,22 +2800,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -2813,7 +2836,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -2831,6 +2862,16 @@ var defaultStrat = function (parentVal, childVal) {
     : childVal
 };
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn$1(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -3403,10 +3444,14 @@ function checkExpression (exp, text, errors) {
     if (keywordMatch) {
       errors.push(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
       );
     } else {
-      errors.push(("invalid expression: " + (text.trim())));
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
     }
   }
 }
diff --git a/packages/weex-vue-framework/factory.js b/packages/weex-vue-framework/factory.js
index 155b38a2db4..266cba3f412 100644
--- a/packages/weex-vue-framework/factory.js
+++ b/packages/weex-vue-framework/factory.js
@@ -1,6 +1,6 @@
 'use strict';
 
-module.exports = function weexFactory (exports, renderer) {
+module.exports = function weexFactory (exports, document) {
 
 /*  */
 
@@ -42,8 +42,15 @@ function isObject (obj) {
   return obj !== null && typeof obj === 'object'
 }
 
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
 var _toString = Object.prototype.toString;
 
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
 /**
  * Strict object type check. Only returns true
  * for plain JavaScript objects.
@@ -60,7 +67,7 @@ function isRegExp (v) {
  * Check if val is a valid array index.
  */
 function isValidArrayIndex (val) {
-  var n = parseFloat(val);
+  var n = parseFloat(String(val));
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
@@ -110,7 +117,7 @@ var isBuiltInTag = makeMap('slot,component', true);
 /**
  * Check if a attribute is a reserved attribute.
  */
-var isReservedAttribute = makeMap('key,ref,slot,is');
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
  * Remove an item from an array
@@ -161,12 +168,9 @@ var capitalize = cached(function (str) {
 /**
  * Hyphenate a camelCase string.
  */
-var hyphenateRE = /([^-])([A-Z])/g;
+var hyphenateRE = /\B([A-Z])/g;
 var hyphenate = cached(function (str) {
-  return str
-    .replace(hyphenateRE, '$1-$2')
-    .replace(hyphenateRE, '$1-$2')
-    .toLowerCase()
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
 });
 
 /**
@@ -319,7 +323,8 @@ var LIFECYCLE_HOOKS = [
   'beforeDestroy',
   'destroyed',
   'activated',
-  'deactivated'
+  'deactivated',
+  'errorCaptured'
 ];
 
 /*  */
@@ -456,7 +461,8 @@ function parsePath (path) {
 
 var warn = noop;
 var tip = noop;
-var formatComponentName = (null); // work around flow check
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
 if (process.env.NODE_ENV !== 'production') {
   var hasConsole = typeof console !== 'undefined';
@@ -487,15 +493,13 @@ if (process.env.NODE_ENV !== 'production') {
     if (vm.$root === vm) {
       return '<Root>'
     }
-    var name = typeof vm === 'string'
-      ? vm
-      : typeof vm === 'function' && vm.options
-        ? vm.options.name
-        : vm._isVue
-          ? vm.$options.name || vm.$options._componentTag
-          : vm.name;
-
-    var file = vm._isVue && vm.$options.__file;
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
     if (!name && file) {
       var match = file.match(/([^/\\]+)\.vue$/);
       name = match && match[1];
@@ -517,7 +521,7 @@ if (process.env.NODE_ENV !== 'production') {
     return res
   };
 
-  var generateComponentTrace = function (vm) {
+  generateComponentTrace = function (vm) {
     if (vm._isVue && vm.$parent) {
       var tree = [];
       var currentRecursiveSequence = 0;
@@ -550,23 +554,50 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 function handleError (err, vm, info) {
-  if (config.errorHandler) {
-    config.errorHandler.call(null, err, vm, info);
-  } else {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
     }
-    /* istanbul ignore else */
-    if (inBrowser && typeof console !== 'undefined') {
-      console.error(err);
-    } else {
-      throw err
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
     }
   }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
 }
 
 /*  */
-/* globals MutationObserver */
+/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
@@ -581,17 +612,17 @@ var isAndroid = UA && UA.indexOf('android') > 0;
 var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-// Firefix has a "watch" function on Object.prototype...
+// Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
 
-var supportsPassive = false;
+
 if (inBrowser) {
   try {
     var opts = {};
     Object.defineProperty(opts, 'passive', ({
       get: function get () {
         /* istanbul ignore next */
-        supportsPassive = true;
+        
       }
     })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
@@ -644,45 +675,40 @@ var nextTick = (function () {
     }
   }
 
-  // the nextTick behavior leverages the microtask queue, which can be accessed
-  // via either native Promise.then or MutationObserver.
-  // MutationObserver has wider support, however it is seriously bugged in
-  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
-  // completely stops working after triggering a few times... so, if native
-  // Promise is available, we will use it:
+  // An asynchronous deferring mechanism.
+  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
+  // but microtasks actually has too high a priority and fires in between
+  // supposedly sequential events (e.g. #4521, #6690) or even between
+  // bubbling of the same event (#6566). Technically setImmediate should be
+  // the ideal choice, but it's not available everywhere; and the only polyfill
+  // that consistently queues the callback after all DOM events triggered in the
+  // same loop is by using MessageChannel.
   /* istanbul ignore if */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    var p = Promise.resolve();
-    var logError = function (err) { console.error(err); };
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     timerFunc = function () {
-      p.then(nextTickHandler).catch(logError);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
-      // it can get stuck in a weird state where callbacks are pushed into the
-      // microtask queue but the queue isn't being flushed, until the browser
-      // needs to do some other work, e.g. handle a timer. Therefore we can
-      // "force" the microtask queue to be flushed by adding an empty timer.
-      if (isIOS) { setTimeout(noop); }
+      setImmediate(nextTickHandler);
     };
-  } else if (typeof MutationObserver !== 'undefined' && (
-    isNative(MutationObserver) ||
-    // PhantomJS and iOS 7.x
-    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
   )) {
-    // use MutationObserver where native Promise is not available,
-    // e.g. PhantomJS IE11, iOS7, Android 4.4
-    var counter = 1;
-    var observer = new MutationObserver(nextTickHandler);
-    var textNode = document.createTextNode(String(counter));
-    observer.observe(textNode, {
-      characterData: true
-    });
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = nextTickHandler;
+    timerFunc = function () {
+      port.postMessage(1);
+    };
+  } else
+  /* istanbul ignore next */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    // use microtask in non-DOM environments, e.g. Weex
+    var p = Promise.resolve();
     timerFunc = function () {
-      counter = (counter + 1) % 2;
-      textNode.data = String(counter);
+      p.then(nextTickHandler);
     };
   } else {
     // fallback to setTimeout
-    /* istanbul ignore next */
     timerFunc = function () {
       setTimeout(nextTickHandler, 0);
     };
@@ -705,6 +731,7 @@ var nextTick = (function () {
       pending = true;
       timerFunc();
     }
+    // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
       return new Promise(function (resolve, reject) {
         _resolve = resolve;
@@ -714,7 +741,7 @@ var nextTick = (function () {
 })();
 
 var _Set;
-/* istanbul ignore if */
+/* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
   _Set = Set;
@@ -789,6 +816,101 @@ function popTarget () {
   Dep.target = targetStack.pop();
 }
 
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.functionalContext = undefined;
+  this.functionalOptions = undefined;
+  this.functionalScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep && vnode.children) {
+    cloned.children = cloneVNodes(vnode.children);
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  var len = vnodes.length;
+  var res = new Array(len);
+  for (var i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -874,7 +996,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i], obj[keys[i]]);
   }
 };
 
@@ -917,7 +1039,7 @@ function copyAugment (target, src, keys) {
  * or the existing observer if the value already has one.
  */
 function observe (value, asRootData) {
-  if (!isObject(value)) {
+  if (!isObject(value) || value instanceof VNode) {
     return
   }
   var ob;
@@ -941,7 +1063,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive$$1 (
+function defineReactive (
   obj,
   key,
   val,
@@ -969,9 +1091,9 @@ function defineReactive$$1 (
         dep.depend();
         if (childOb) {
           childOb.dep.depend();
-        }
-        if (Array.isArray(value)) {
-          dependArray(value);
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
         }
       }
       return value
@@ -1024,7 +1146,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive$$1(ob.value, key, val);
+  defineReactive(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1148,7 +1270,7 @@ function mergeDataOrFn (
         : childVal;
       var defaultData = typeof parentVal === 'function'
         ? parentVal.call(vm)
-        : undefined;
+        : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
       } else {
@@ -1207,11 +1329,19 @@ LIFECYCLE_HOOKS.forEach(function (hook) {
  * a three-way merge between constructor options, instance
  * options and parent options.
  */
-function mergeAssets (parentVal, childVal) {
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   var res = Object.create(parentVal || null);
-  return childVal
-    ? extend(res, childVal)
-    : res
+  if (childVal) {
+    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
 }
 
 ASSET_TYPES.forEach(function (type) {
@@ -1224,22 +1354,30 @@ ASSET_TYPES.forEach(function (type) {
  * Watchers hashes should not overwrite one
  * another, so we merge them as arrays.
  */
-strats.watch = function (parentVal, childVal) {
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
   // work around Firefox's Object.prototype.watch...
   if (parentVal === nativeWatch) { parentVal = undefined; }
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
+  if (process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = {};
   extend(ret, parentVal);
-  for (var key in childVal) {
-    var parent = ret[key];
-    var child = childVal[key];
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
     if (parent && !Array.isArray(parent)) {
       parent = [parent];
     }
-    ret[key] = parent
+    ret[key$1] = parent
       ? parent.concat(child)
       : Array.isArray(child) ? child : [child];
   }
@@ -1252,7 +1390,15 @@ strats.watch = function (parentVal, childVal) {
 strats.props =
 strats.methods =
 strats.inject =
-strats.computed = function (parentVal, childVal) {
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && process.env.NODE_ENV !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
   if (!parentVal) { return childVal }
   var ret = Object.create(null);
   extend(ret, parentVal);
@@ -1289,7 +1435,7 @@ function checkComponents (options) {
  * Ensure all props option syntax are normalized into the
  * Object-based format.
  */
-function normalizeProps (options) {
+function normalizeProps (options, vm) {
   var props = options.props;
   if (!props) { return }
   var res = {};
@@ -1313,6 +1459,12 @@ function normalizeProps (options) {
         ? val
         : { type: val };
     }
+  } else if (process.env.NODE_ENV !== 'production') {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
   }
   options.props = res;
 }
@@ -1320,13 +1472,26 @@ function normalizeProps (options) {
 /**
  * Normalize all injections into Object-based format
  */
-function normalizeInject (options) {
+function normalizeInject (options, vm) {
   var inject = options.inject;
+  var normalized = options.inject = {};
   if (Array.isArray(inject)) {
-    var normalized = options.inject = {};
     for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = inject[i];
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
     }
+  } else if (process.env.NODE_ENV !== 'production' && inject) {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
   }
 }
 
@@ -1345,6 +1510,16 @@ function normalizeDirectives (options) {
   }
 }
 
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
 /**
  * Merge two option objects into a new one.
  * Core utility used in both instantiation and inheritance.
@@ -1362,8 +1537,8 @@ function mergeOptions (
     child = child.options;
   }
 
-  normalizeProps(child);
-  normalizeInject(child);
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
   normalizeDirectives(child);
   var extendsFrom = child.extends;
   if (extendsFrom) {
@@ -1527,9 +1702,9 @@ function assertProp (
   }
   if (!valid) {
     warn(
-      'Invalid prop: type check failed for prop "' + name + '".' +
-      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
-      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
+      "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
+      ", got " + (toRawType(value)) + ".",
       vm
     );
     return
@@ -1551,7 +1726,12 @@ function assertType (value, type) {
   var valid;
   var expectedType = getType(type);
   if (simpleCheckRE.test(expectedType)) {
-    valid = typeof value === expectedType.toLowerCase();
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
   } else if (expectedType === 'Object') {
     valid = isPlainObject(value);
   } else if (expectedType === 'Array') {
@@ -1605,8 +1785,10 @@ if (process.env.NODE_ENV !== 'production') {
   var warnNonPresent = function (target, key) {
     warn(
       "Property or method \"" + key + "\" is not defined on the instance but " +
-      "referenced during render. Make sure to declare reactive data " +
-      "properties in the data option.",
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
       target
     );
   };
@@ -1616,7 +1798,7 @@ if (process.env.NODE_ENV !== 'production') {
     Proxy.toString().match(/native code/);
 
   if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
     config.keyCodes = new Proxy(config.keyCodes, {
       set: function set (target, key, value) {
         if (isBuiltInModifier(key)) {
@@ -1689,96 +1871,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.functionalContext = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: {} };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  return cloned
-}
-
-function cloneVNodes (vnodes) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i]);
-  }
-  return res
-}
-
-/*  */
-
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -1989,20 +2081,29 @@ function isTextNode (node) {
 
 function normalizeArrayChildren (children, nestedIndex) {
   var res = [];
-  var i, c, last;
+  var i, c, lastIndex, last;
   for (i = 0; i < children.length; i++) {
     c = children[i];
     if (isUndef(c) || typeof c === 'boolean') { continue }
-    last = res[res.length - 1];
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
     //  nested
     if (Array.isArray(c)) {
-      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
     } else if (isPrimitive(c)) {
       if (isTextNode(last)) {
         // merge adjacent text nodes
         // this is necessary for SSR hydration because text nodes are
         // essentially merged when rendered to HTML strings
-        (last).text += String(c);
+        res[lastIndex] = createTextVNode(last.text + c);
       } else if (c !== '') {
         // convert primitive to vnode
         res.push(createTextVNode(c));
@@ -2010,7 +2111,7 @@ function normalizeArrayChildren (children, nestedIndex) {
     } else {
       if (isTextNode(c) && isTextNode(last)) {
         // merge adjacent text nodes
-        res[res.length - 1] = createTextVNode(last.text + c.text);
+        res[lastIndex] = createTextVNode(last.text + c.text);
       } else {
         // default key for nested array children (likely generated by v-for)
         if (isTrue(children._isVList) &&
@@ -2029,7 +2130,10 @@ function normalizeArrayChildren (children, nestedIndex) {
 /*  */
 
 function ensureCtor (comp, base) {
-  if (comp.__esModule && comp.default) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
     comp = comp.default;
   }
   return isObject(comp)
@@ -2154,11 +2258,17 @@ function resolveAsyncComponent (
 
 /*  */
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
       var c = children[i];
-      if (isDef(c) && isDef(c.componentOptions)) {
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
         return c
       }
     }
@@ -2181,8 +2291,8 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once$$1) {
-  if (once$$1) {
+function add (event, fn, once) {
+  if (once) {
     target.$once(event, fn);
   } else {
     target.$on(event, fn);
@@ -2245,8 +2355,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        this$1.$off(event[i$1], fn);
+      for (var i = 0, l = event.length; i < l; i++) {
+        this$1.$off(event[i], fn);
       }
       return vm
     }
@@ -2259,14 +2369,16 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
       }
     }
     return vm
@@ -2318,10 +2430,15 @@ function resolveSlots (
   var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
     if ((child.context === context || child.functionalContext === context) &&
-      child.data && child.data.slot != null
+      data && data.slot != null
     ) {
       var name = child.data.slot;
       var slot = (slots[name] || (slots[name] = []));
@@ -2478,6 +2595,10 @@ function lifecycleMixin (Vue) {
     if (vm.$el) {
       vm.$el.__vue__ = null;
     }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
   };
 }
 
@@ -2521,12 +2642,12 @@ function mountComponent (
       mark(startTag);
       var vnode = vm._render();
       mark(endTag);
-      measure((name + " render"), startTag, endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
       mark(startTag);
       vm._update(vnode, hydrating);
       mark(endTag);
-      measure((name + " patch"), startTag, endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
     };
   } else {
     updateComponent = function () {
@@ -2574,11 +2695,11 @@ function updateChildComponent (
   }
   vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listensers hash
+  // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = parentVnode.data && parentVnode.data.attrs;
-  vm.$listeners = listeners;
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
@@ -3086,16 +3207,6 @@ function initState (vm) {
   }
 }
 
-function checkOptionType (vm, name) {
-  var option = vm.$options[name];
-  if (!isPlainObject(option)) {
-    warn(
-      ("component option \"" + name + "\" should be an object."),
-      vm
-    );
-  }
-}
-
 function initProps (vm, propsOptions) {
   var propsData = vm.$options.propsData || {};
   var props = vm._props = {};
@@ -3110,13 +3221,15 @@ function initProps (vm, propsOptions) {
     var value = validateProp(key, propsOptions, propsData, vm);
     /* istanbul ignore else */
     if (process.env.NODE_ENV !== 'production') {
-      if (isReservedAttribute(key) || config.isReservedAttr(key)) {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
         warn(
-          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
           vm
         );
       }
-      defineReactive$$1(props, key, value, function () {
+      defineReactive(props, key, value, function () {
         if (vm.$parent && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
@@ -3128,7 +3241,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive$$1(props, key, value);
+      defineReactive(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3165,7 +3278,7 @@ function initData (vm) {
     if (process.env.NODE_ENV !== 'production') {
       if (methods && hasOwn(methods, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a data property."),
+          ("Method \"" + key + "\" has already been defined as a data property."),
           vm
         );
       }
@@ -3186,7 +3299,7 @@ function initData (vm) {
 
 function getData (data, vm) {
   try {
-    return data.call(vm)
+    return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
@@ -3196,8 +3309,9 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'computed');
   var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
   for (var key in computed) {
     var userDef = computed[key];
@@ -3208,8 +3322,16 @@ function initComputed (vm, computed) {
         vm
       );
     }
-    // create internal watcher for the computed property.
-    watchers[key] = new Watcher(vm, getter || noop, noop, computedWatcherOptions);
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
 
     // component-defined computed properties are already defined on the
     // component prototype. We only need to define computed properties defined
@@ -3226,13 +3348,20 @@ function initComputed (vm, computed) {
   }
 }
 
-function defineComputed (target, key, userDef) {
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
   if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = createComputedGetter(key);
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
-      ? userDef.cache !== false
+      ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
         : userDef.get
       : noop;
@@ -3268,30 +3397,34 @@ function createComputedGetter (key) {
 }
 
 function initMethods (vm, methods) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'methods');
   var props = vm.$options.props;
   for (var key in methods) {
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
     if (process.env.NODE_ENV !== 'production') {
       if (methods[key] == null) {
         warn(
-          "method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has an undefined value in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
       }
       if (props && hasOwn(props, key)) {
         warn(
-          ("method \"" + key + "\" has already been defined as a prop."),
+          ("Method \"" + key + "\" has already been defined as a prop."),
           vm
         );
       }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
     }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
 }
 
 function initWatch (vm, watch) {
-  process.env.NODE_ENV !== 'production' && checkOptionType(vm, 'watch');
   for (var key in watch) {
     var handler = watch[key];
     if (Array.isArray(handler)) {
@@ -3385,7 +3518,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
+        defineReactive(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3394,7 +3527,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive$$1(vm, key, result[key]);
+        defineReactive(vm, key, result[key]);
       }
     });
     observerState.shouldConvert = true;
@@ -3406,12 +3539,15 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
         : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
-      var provideKey = inject[key];
+      var provideKey = inject[key].from;
       var source = vm;
       while (source) {
         if (source._provided && provideKey in source._provided) {
@@ -3420,8 +3556,15 @@ function resolveInject (inject, vm) {
         }
         source = source.$parent;
       }
-      if (process.env.NODE_ENV !== 'production' && !source) {
-        warn(("Injection \"" + key + "\" not found"), vm);
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
       }
     }
     return result
@@ -3430,142 +3573,453 @@ function resolveInject (inject, vm) {
 
 /*  */
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  context,
-  children
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  var props = {};
-  var propOptions = Ctor.options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || {});
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var _context = Object.create(context);
-  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
-  var vnode = Ctor.options.render.call(null, h, {
-    data: data,
-    props: props,
-    children: children,
-    parent: context,
-    listeners: data.on || {},
-    injections: resolveInject(Ctor.options.inject, context),
-    slots: function () { return resolveSlots(children, context); }
-  });
-  if (vnode instanceof VNode) {
-    vnode.functionalContext = context;
-    vnode.functionalOptions = Ctor.options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
     }
   }
-  return vnode
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+  if (isDef(ret)) {
+    (ret)._isVList = true;
   }
+  return ret
 }
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance,
-        parentElm,
-        refElm
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    return scopedSlotFn(props) || fallback
+  } else {
+    var slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes && process.env.NODE_ENV !== 'production') {
+      slotNodes._rendered && warn(
+        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+        "- this will likely cause render errors.",
+        this
       );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      slotNodes._rendered = true;
     }
-  },
+    return slotNodes || fallback
+  }
+}
 
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+/*  */
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  var keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
     }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
   }
-};
+}
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
+/*  */
 
-function createComponent (
-  Ctor,
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
   data,
-  context,
-  children,
-  tag
+  tag,
+  value,
+  asProp,
+  isSync
 ) {
-  if (isUndef(Ctor)) {
-    return
-  }
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
 
-  var baseCtor = context.$options._base;
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + key)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
+      for (var key in value) loop( key );
+    }
   }
-
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  // static trees can be rendered once and cached on the contructor options
+  // so every instance shares the same cached trees
+  var renderFns = this.$options.staticRenderFns;
+  var cached = renderFns.cached || (renderFns.cached = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm = Object.create(parent);
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
+    if (data.slot) {
+      (vnode.data || (vnode.data = {})).slot = data.slot;
+    }
+  }
+
+  return vnode
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+// hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (
+    vnode,
+    hydrating,
+    parentElm,
+    refElm
+  ) {
+    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance,
+        parentElm,
+        refElm
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    } else if (vnode.data.keepAlive) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
   // if at this stage it's not a constructor or an async component factory,
   // reject.
   if (typeof Ctor !== 'function') {
@@ -3702,367 +4156,140 @@ function transformModel (options, data) {
     on[event] = [data.model.callback].concat(on[event]);
   } else {
     on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    return
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && isUndef(child.ns)) {
-        applyNS(child, ns);
-      }
-    }
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      props = extend(extend({}, bindObject), props);
-    }
-    return scopedSlotFn(props) || fallback
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
-      slotNodes._rendered = true;
-    }
-    return slotNodes || fallback
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias
-) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (Array.isArray(keyCodes)) {
-    return keyCodes.indexOf(eventKeyCode) === -1
-  } else {
-    return keyCodes !== eventKeyCode
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var tree = this._staticTrees[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
-  }
-  // otherwise, render a fresh tree.
-  tree = this._staticTrees[index] =
-    this.$options.staticRenderFns[index].call(this._renderProxy);
-  markStatic(tree, ("__static__" + index), false);
-  return tree
+  }
 }
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
 ) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
 }
 
-function markStatic (
-  tree,
-  key,
-  isOnce
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+  if (isDef(data) && isDef((data).__ob__)) {
+    process.env.NODE_ENV !== 'production' && warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (process.env.NODE_ENV !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    warn(
+      'Avoid using non-primitive value as key, ' +
+      'use string/number value instead.',
+      context
+    );
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
   } else {
-    markStaticNode(tree, key, isOnce);
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) { applyNS(vnode, ns); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(ours, existing) : ours;
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
       }
     }
   }
-  return data
 }
 
 /*  */
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null;
-  var parentVnode = vm.$vnode = vm.$options._parentVnode; // the placeholder node in parent tree
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
   vm.$scopedSlots = emptyObject;
   // bind the createElement fn to this instance
   // so that we get proper render context inside it.
@@ -4076,21 +4303,25 @@ function initRender (vm) {
   // $attrs & $listeners are exposed for easier HOC creation.
   // they need to be reactive so that HOCs using them are always updated
   var parentData = parentVnode && parentVnode.data;
+
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, function () {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, function () {
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs, null, true);
-    defineReactive$$1(vm, '$listeners', vm.$options._parentListeners, null, true);
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
 function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
   Vue.prototype.$nextTick = function (fn) {
     return nextTick(fn, this)
   };
@@ -4099,21 +4330,21 @@ function renderMixin (Vue) {
     var vm = this;
     var ref = vm.$options;
     var render = ref.render;
-    var staticRenderFns = ref.staticRenderFns;
     var _parentVnode = ref._parentVnode;
 
     if (vm._isMounted) {
-      // clone slot nodes on re-renders
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
-        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
+        var slot = vm.$slots[key];
+        if (slot._rendered) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
       }
     }
 
     vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
 
-    if (staticRenderFns && !vm._staticTrees) {
-      vm._staticTrees = [];
-    }
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
     vm.$vnode = _parentVnode;
@@ -4122,14 +4353,21 @@ function renderMixin (Vue) {
     try {
       vnode = render.call(vm._renderProxy, vm.$createElement);
     } catch (e) {
-      handleError(e, vm, "render function");
+      handleError(e, vm, "render");
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        vnode = vm.$options.renderError
-          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          : vm._vnode;
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       } else {
         vnode = vm._vnode;
       }
@@ -4149,25 +4387,6 @@ function renderMixin (Vue) {
     vnode.parent = _parentVnode;
     return vnode
   };
-
-  // internal render helpers.
-  // these are exposed on the instance prototype to reduce generated render
-  // code size.
-  Vue.prototype._o = markOnce;
-  Vue.prototype._n = toNumber;
-  Vue.prototype._s = toString;
-  Vue.prototype._l = renderList;
-  Vue.prototype._t = renderSlot;
-  Vue.prototype._q = looseEqual;
-  Vue.prototype._i = looseIndexOf;
-  Vue.prototype._m = renderStatic;
-  Vue.prototype._f = resolveFilter;
-  Vue.prototype._k = checkKeyCodes;
-  Vue.prototype._b = bindObjectProps;
-  Vue.prototype._v = createTextVNode;
-  Vue.prototype._e = createEmptyVNode;
-  Vue.prototype._u = resolveScopedSlots;
-  Vue.prototype._g = bindObjectListeners;
 }
 
 /*  */
@@ -4183,7 +4402,7 @@ function initMixin (Vue) {
     var startTag, endTag;
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-init:" + (vm._uid);
+      startTag = "vue-perf-start:" + (vm._uid);
       endTag = "vue-perf-end:" + (vm._uid);
       mark(startTag);
     }
@@ -4224,7 +4443,7 @@ function initMixin (Vue) {
     if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
       vm._name = formatComponentName(vm, false);
       mark(endTag);
-      measure(((vm._name) + " init"), startTag, endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
     }
 
     if (vm.$options.el) {
@@ -4490,8 +4709,6 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
-var patternTypes = [String, RegExp, Array];
-
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4508,54 +4725,66 @@ function matches (pattern, name) {
   return false
 }
 
-function pruneCache (cache, current, filter) {
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
   for (var key in cache) {
     var cachedNode = cache[key];
     if (cachedNode) {
       var name = getComponentName(cachedNode.componentOptions);
       if (name && !filter(name)) {
-        if (cachedNode !== current) {
-          pruneCacheEntry(cachedNode);
-        }
-        cache[key] = null;
+        pruneCacheEntry(cache, key, keys, _vnode);
       }
     }
   }
 }
 
-function pruneCacheEntry (vnode) {
-  if (vnode) {
-    vnode.componentInstance.$destroy();
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
   }
+  cache[key] = null;
+  remove(keys, key);
 }
 
+var patternTypes = [String, RegExp, Array];
+
 var KeepAlive = {
   name: 'keep-alive',
   abstract: true,
 
   props: {
     include: patternTypes,
-    exclude: patternTypes
+    exclude: patternTypes,
+    max: [String, Number]
   },
 
   created: function created () {
     this.cache = Object.create(null);
+    this.keys = [];
   },
 
   destroyed: function destroyed () {
     var this$1 = this;
 
     for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache[key]);
+      pruneCacheEntry(this$1.cache, key, this$1.keys);
     }
   },
 
   watch: {
     include: function include (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return matches(val, name); });
+      pruneCache(this, function (name) { return matches(val, name); });
     },
     exclude: function exclude (val) {
-      pruneCache(this.cache, this._vnode, function (name) { return !matches(val, name); });
+      pruneCache(this, function (name) { return !matches(val, name); });
     }
   },
 
@@ -4571,16 +4800,29 @@ var KeepAlive = {
       )) {
         return vnode
       }
+
+      var ref = this;
+      var cache = ref.cache;
+      var keys = ref.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
         ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
         : vnode.key;
-      if (this.cache[key]) {
-        vnode.componentInstance = this.cache[key].componentInstance;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
       } else {
-        this.cache[key] = vnode;
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
       }
+
       vnode.data.keepAlive = true;
     }
     return vnode
@@ -4613,7 +4855,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
+    defineReactive: defineReactive
   };
 
   Vue.set = set;
@@ -4650,27 +4892,37 @@ Object.defineProperty(Vue$2.prototype, '$ssrContext', {
   }
 });
 
-Vue$2.version = '2.4.2';
+Vue$2.version = '2.5.0';
+
+var latestNodeId = 1;
+
+function TextNode (text) {
+  this.instanceId = '';
+  this.nodeId = latestNodeId++;
+  this.parentNode = null;
+  this.nodeType = 3;
+  this.text = text;
+}
 
-/* globals renderer */
-// renderer is injected by weex factory wrapper
+/* globals document */
+// document is injected by weex factory wrapper
 
 var namespaceMap = {};
 
 function createElement$1 (tagName) {
-  return new renderer.Element(tagName)
+  return document.createElement(tagName)
 }
 
 function createElementNS (namespace, tagName) {
-  return new renderer.Element(namespace + ':' + tagName)
+  return document.createElement(namespace + ':' + tagName)
 }
 
 function createTextNode (text) {
-  return new renderer.TextNode(text)
+  return new TextNode(text)
 }
 
 function createComment (text) {
-  return new renderer.Comment(text)
+  return document.createComment(text)
 }
 
 function insertBefore (node, target, before) {
@@ -4793,6 +5045,43 @@ function registerRef (vnode, isRemoval) {
   }
 }
 
+/*  */
+
+
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+
+
+
+
+
+
+
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
 /**
  * Virtual DOM patching algorithm based on Snabbdom by
  * Simon Friis Vindum (@paldepind)
@@ -4801,8 +5090,6 @@ function registerRef (vnode, isRemoval) {
  *
  * modified by Evan You (@yyx990803)
  *
-
-/*
  * Not type-checking this because this file is perf-critical and the cost
  * of making flow understand it is not worth it.
  */
@@ -4828,14 +5115,12 @@ function sameVnode (a, b) {
   )
 }
 
-// Some browsers do not support dynamically changing type for <input>
-// so they need to be treated as different nodes
 function sameInputType (a, b) {
   if (a.tag !== 'input') { return true }
   var i;
   var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
   var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
 }
 
 function createKeyToOldIdx (children, beginIdx, endIdx) {
@@ -4869,13 +5154,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
+    function remove () {
+      if (--remove.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove$$1.listeners = listeners;
-    return remove$$1
+    remove.listeners = listeners;
+    return remove
   }
 
   function removeNode (el) {
@@ -4904,7 +5189,14 @@ function createPatchFunction (backend) {
         if (
           !inPre &&
           !vnode.ns &&
-          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
+          !(
+            config.ignoredElements.length &&
+            config.ignoredElements.some(function (ignore) {
+              return isRegExp(ignore)
+                ? ignore.test(tag)
+                : ignore === tag
+            })
+          ) &&
           config.isUnknownElement(tag)
         ) {
           warn(
@@ -5059,16 +5351,21 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    var ancestor = vnode;
-    while (ancestor) {
-      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-        nodeOps.setAttribute(vnode.elm, i, '');
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
       }
-      ancestor = ancestor.parent;
     }
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
+      i !== vnode.functionalContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5147,7 +5444,7 @@ function createPatchFunction (backend) {
     var newEndIdx = newCh.length - 1;
     var newStartVnode = newCh[0];
     var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, elmToMove, refElm;
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
     // removeOnly is a special flag used only by <transition-group>
     // to ensure removed elements stay in correct relative positions
@@ -5179,30 +5476,30 @@ function createPatchFunction (backend) {
         newStartVnode = newCh[++newStartIdx];
       } else {
         if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          newStartVnode = newCh[++newStartIdx];
         } else {
-          elmToMove = oldCh[idxInOld];
+          vnodeToMove = oldCh[idxInOld];
           /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !elmToMove) {
+          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
             warn(
               'It seems there are duplicate keys that is causing an update error. ' +
               'Make sure each v-for item has a unique key.'
             );
           }
-          if (sameVnode(elmToMove, newStartVnode)) {
-            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-            newStartVnode = newCh[++newStartIdx];
           }
         }
+        newStartVnode = newCh[++newStartIdx];
       }
     }
     if (oldStartIdx > oldEndIdx) {
@@ -5213,6 +5510,13 @@ function createPatchFunction (backend) {
     }
   }
 
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
   function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
     if (oldVnode === vnode) {
       return
@@ -5320,27 +5624,46 @@ function createPatchFunction (backend) {
         if (!elm.hasChildNodes()) {
           createChildren(vnode, children, insertedVnodeQueue);
         } else {
-          var childrenMatch = true;
-          var childNode = elm.firstChild;
-          for (var i$1 = 0; i$1 < children.length; i$1++) {
-            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
-              childrenMatch = false;
-              break
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
             }
-            childNode = childNode.nextSibling;
-          }
-          // if childNode is not null, it means the actual childNodes list is
-          // longer than the virtual children list.
-          if (!childrenMatch || childNode) {
-            if (process.env.NODE_ENV !== 'production' &&
-              typeof console !== 'undefined' &&
-              !bailed
-            ) {
-              bailed = true;
-              console.warn('Parent: ', elm);
-              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (process.env.NODE_ENV !== 'production' &&
+                typeof console !== 'undefined' &&
+                !bailed
+              ) {
+                bailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
             }
-            return false
           }
         }
       }
@@ -5431,14 +5754,30 @@ function createPatchFunction (backend) {
           // component root element replaced.
           // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
           while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
             ancestor.elm = vnode.elm;
-            ancestor = ancestor.parent;
-          }
-          if (isPatchable(vnode)) {
-            for (var i = 0; i < cbs.create.length; ++i) {
-              cbs.create[i](emptyNode, vnode.parent);
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
             }
+            ancestor = ancestor.parent;
           }
         }
 
@@ -5808,20 +6147,20 @@ var style = {
 
 /*  */
 
-function resolveTransition (def$$1) {
-  if (!def$$1) {
+function resolveTransition (def) {
+  if (!def) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
+  if (typeof def === 'object') {
     var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
     }
-    extend(res, def$$1);
+    extend(res, def);
     return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
   }
 }
 
@@ -5843,9 +6182,11 @@ var autoCssTransition = cached(function (name) {
 
 
 // binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser && window.requestAnimationFrame
-  ? window.requestAnimationFrame.bind(window)
-  : setTimeout;
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
 
 var transition = {
   create: enter,
@@ -6128,6 +6469,104 @@ var patch = createPatchFunction({
 var platformDirectives = {
 };
 
+function getVNodeType (vnode) {
+  if (!vnode.tag) {
+    return ''
+  }
+  return vnode.tag.replace(/vue\-component\-(\d+\-)?/, '')
+}
+
+function isSimpleSpan (vnode) {
+  return vnode.children && vnode.children.length === 1 && !vnode.children[0].tag
+}
+
+var cssLengthRE = /^([+-]?[0-9]+(\.[0-9]+)?)(px|em|ex|%|in|cm|mm|pt|pc)$/i;
+function trimCSSUnit (prop) {
+  var res = String(prop).match(cssLengthRE);
+  if (res) {
+    return Number(res[1])
+  }
+  return prop
+}
+
+function parseStyle (vnode) {
+  if (!vnode || !vnode.data) {
+    return
+  }
+
+  var ref = vnode.data;
+  var staticStyle = ref.staticStyle;
+  var staticClass = ref.staticClass;
+  if (vnode.data.style || vnode.data.class || staticStyle || staticClass) {
+    var styles = Object.assign({}, staticStyle, vnode.data.style);
+
+    var cssMap = vnode.context.$options.style || {};
+    var classList = [].concat(staticClass, vnode.data.class);
+    classList.forEach(function (name) {
+      if (name && cssMap[name]) {
+        Object.assign(styles, cssMap[name]);
+      }
+    });
+
+    for (var key in styles) {
+      styles[key] = trimCSSUnit(styles[key]);
+    }
+    return styles
+  }
+}
+
+function convertVNodeChildren (children) {
+  if (!children.length) {
+    return
+  }
+
+  return children.map(function (vnode) {
+    var type = getVNodeType(vnode);
+    var props = { type: type };
+
+    // convert raw text node
+    if (!type) {
+      props.type = 'span';
+      props.attr = {
+        value: (vnode.text || '').trim()
+      };
+    } else {
+      props.style = parseStyle(vnode);
+      if (vnode.data) {
+        props.attr = vnode.data.attrs;
+        if (vnode.data.on) {
+          props.events = vnode.data.on;
+        }
+      }
+
+      if (type === 'span' && isSimpleSpan(vnode)) {
+        props.attr = props.attr || {};
+        props.attr.value = vnode.children[0].text.trim();
+        return props
+      }
+    }
+
+    if (vnode.children && vnode.children.length) {
+      props.children = convertVNodeChildren(vnode.children);
+    }
+
+    return props
+  })
+}
+
+var Richtext = {
+  name: 'richtext',
+  // abstract: true,
+  render: function render (h) {
+    return h('weex:richtext', {
+      on: this._events,
+      attrs: {
+        value: convertVNodeChildren(this.$options._renderChildren || [])
+      }
+    })
+  }
+};
+
 /*  */
 
 // Provides transition support for a single element/component.
@@ -6198,10 +6637,6 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
 var Transition$1 = {
   name: 'transition',
   props: transitionProps,
@@ -6293,7 +6728,7 @@ var Transition$1 = {
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
-      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
+      var oldData = oldChild.data.transition = extend({}, data);
       // handle transition mode
       if (mode === 'out-in') {
         // return placeholder node and queue update when leave finishes
@@ -6468,29 +6903,35 @@ var TransitionGroup = {
 // }
 
 var platformComponents = {
+  Richtext: Richtext,
   Transition: Transition$1,
   TransitionGroup: TransitionGroup
 };
 
-/* globals renderer */
+/* globals document */
 
-var isReservedTag = makeMap(
+var isReservedTag$1 = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
-  'a,div,img,image,text,span,richtext,input,switch,textarea,spinner,select,' +
-  'slider,slider-neighbor,indicator,trisition,trisition-group,canvas,' +
+  'a,div,img,image,text,span,input,switch,textarea,spinner,select,' +
+  'slider,slider-neighbor,indicator,canvas,' +
   'list,cell,header,loading,loading-indicator,refresh,scrollable,scroller,' +
   'video,web,embed,tabbar,tabheader,datepicker,timepicker,marquee,countdown',
   true
 );
 
 // Elements that you can, intentionally, leave open (and which close themselves)
-// more flexable than web
+// more flexible than web
 var canBeLeftOpenTag = makeMap(
   'web,spinner,switch,video,textarea,canvas,' +
   'indicator,marquee,countdown',
   true
 );
 
+var isRuntimeComponent = makeMap(
+  'richtext,trisition,trisition-group',
+  true
+);
+
 var isUnaryTag = makeMap(
   'embed,img,image,input,link,meta',
   true
@@ -6498,11 +6939,11 @@ var isUnaryTag = makeMap(
 
 function mustUseProp () { /* console.log('mustUseProp') */ }
 
-function isUnknownElement () { /* console.log('isUnknownElement') */ }
+function isUnknownElement$1 () { /* console.log('isUnknownElement') */ }
 
 function query (el, document) {
-  // renderer is injected by weex factory wrapper
-  var placeholder = new renderer.Comment('root');
+  // document is injected by weex factory wrapper
+  var placeholder = document.createComment('root');
   placeholder.hasAttribute = placeholder.removeAttribute = function () {}; // hack for patch
   document.documentElement.appendChild(placeholder);
   return placeholder
@@ -6512,8 +6953,9 @@ function query (el, document) {
 
 // install platform specific utils
 Vue$2.config.mustUseProp = mustUseProp;
-Vue$2.config.isReservedTag = isReservedTag;
-Vue$2.config.isUnknownElement = isUnknownElement;
+Vue$2.config.isReservedTag = isReservedTag$1;
+Vue$2.config.isRuntimeComponent = isRuntimeComponent;
+Vue$2.config.isUnknownElement = isUnknownElement$1;
 
 // install platform runtime directives and components
 Vue$2.options.directives = platformDirectives;
diff --git a/packages/weex-vue-framework/index.js b/packages/weex-vue-framework/index.js
index a05c5f54084..acd095ebcb1 100644
--- a/packages/weex-vue-framework/index.js
+++ b/packages/weex-vue-framework/index.js
@@ -2,52 +2,22 @@
 
 Object.defineProperty(exports, '__esModule', { value: true });
 
-var latestNodeId = 1;
-
-function TextNode (text) {
-  this.instanceId = '';
-  this.nodeId = latestNodeId++;
-  this.parentNode = null;
-  this.nodeType = 3;
-  this.text = text;
-}
-
 // this will be preserved during build
 var VueFactory = require('./factory');
 
 var instances = {};
-var modules = {};
-var components = {};
-
-var renderer = {
-  TextNode: TextNode,
-  instances: instances,
-  modules: modules,
-  components: components
-};
 
 /**
- * Prepare framework config, basically about the virtual-DOM and JS bridge.
- * @param {object} cfg
+ * Prepare framework config.
+ * Nothing need to do actually, just an interface provided to weex runtime.
  */
-function init (cfg) {
-  renderer.Document = cfg.Document;
-  renderer.Element = cfg.Element;
-  renderer.Comment = cfg.Comment;
-  renderer.compileBundle = cfg.compileBundle;
-}
+function init () {}
 
 /**
  * Reset framework config and clear all registrations.
  */
 function reset () {
   clear(instances);
-  clear(modules);
-  clear(components);
-  delete renderer.Document;
-  delete renderer.Element;
-  delete renderer.Comment;
-  delete renderer.compileBundle;
 }
 
 /**
@@ -79,47 +49,33 @@ function createInstance (
   if ( config === void 0 ) config = {};
   if ( env === void 0 ) env = {};
 
-  // Virtual-DOM object.
-  var document = new renderer.Document(instanceId, config.bundleUrl);
-
+  var weex = env.weex;
+  var document = weex.document;
   var instance = instances[instanceId] = {
     instanceId: instanceId, config: config, data: data,
     document: document
   };
 
-  // Prepare native module getter and HTML5 Timer APIs.
-  var moduleGetter = genModuleGetter(instanceId);
-  var timerAPIs = getInstanceTimer(instanceId, moduleGetter);
-
-  // Prepare `weex` instance variable.
-  var weexInstanceVar = {
-    config: config,
-    document: document,
-    supports: supports,
-    requireModule: moduleGetter
-  };
-  Object.freeze(weexInstanceVar);
+  var timerAPIs = getInstanceTimer(instanceId, weex.requireModule);
 
   // Each instance has a independent `Vue` module instance
-  var Vue = instance.Vue = createVueModuleInstance(instanceId, moduleGetter);
+  var Vue = instance.Vue = createVueModuleInstance(instanceId, weex);
 
   // The function which create a closure the JS Bundle will run in.
   // It will declare some instance variables like `Vue`, HTML5 Timer APIs etc.
   var instanceVars = Object.assign({
     Vue: Vue,
-    weex: weexInstanceVar,
-    // deprecated
-    __weex_require_module__: weexInstanceVar.requireModule // eslint-disable-line
+    weex: weex
   }, timerAPIs, env.services);
 
-  if (!callFunctionNative(instanceVars, appCode)) {
-    // If failed to compile functionBody on native side,
-    // fallback to 'callFunction()'.
-    callFunction(instanceVars, appCode);
-  }
+  appCode = "(function(global){ \n" + appCode + "\n })(Object.create(this))";
+
+  callFunction(instanceVars, appCode);
 
   // Send `createFinish` signal to native.
-  instance.document.taskCenter.send('dom', { action: 'createFinish' }, []);
+  document.taskCenter.send('dom', { action: 'createFinish' }, []);
+
+  return instance
 }
 
 /**
@@ -132,6 +88,8 @@ function destroyInstance (instanceId) {
   if (instance && instance.app instanceof instance.Vue) {
     instance.document.destroy();
     instance.app.$destroy();
+    delete instance.document;
+    delete instance.app;
   }
   delete instances[instanceId];
 }
@@ -220,103 +178,27 @@ function receiveTasks (id, tasks) {
   return new Error(("invalid instance id \"" + id + "\" or tasks"))
 }
 
-/**
- * Register native modules information.
- * @param {object} newModules
- */
-function registerModules (newModules) {
-  var loop = function ( name ) {
-    if (!modules[name]) {
-      modules[name] = {};
-    }
-    newModules[name].forEach(function (method) {
-      if (typeof method === 'string') {
-        modules[name][method] = true;
-      } else {
-        modules[name][method.name] = method.args;
-      }
-    });
-  };
-
-  for (var name in newModules) loop( name );
-}
-
-/**
- * Check whether the module or the method has been registered.
- * @param {String} module name
- * @param {String} method name (optional)
- */
-function isRegisteredModule (name, method) {
-  if (typeof method === 'string') {
-    return !!(modules[name] && modules[name][method])
-  }
-  return !!modules[name]
-}
-
-/**
- * Register native components information.
- * @param {array} newComponents
- */
-function registerComponents (newComponents) {
-  if (Array.isArray(newComponents)) {
-    newComponents.forEach(function (component) {
-      if (!component) {
-        return
-      }
-      if (typeof component === 'string') {
-        components[component] = true;
-      } else if (typeof component === 'object' && typeof component.type === 'string') {
-        components[component.type] = component;
-      }
-    });
-  }
-}
-
-/**
- * Check whether the component has been registered.
- * @param {String} component name
- */
-function isRegisteredComponent (name) {
-  return !!components[name]
-}
-
-/**
- * Detects whether Weex supports specific features.
- * @param {String} condition
- */
-function supports (condition) {
-  if (typeof condition !== 'string') { return null }
-
-  var res = condition.match(/^@(\w+)\/(\w+)(\.(\w+))?$/i);
-  if (res) {
-    var type = res[1];
-    var name = res[2];
-    var method = res[4];
-    switch (type) {
-      case 'module': return isRegisteredModule(name, method)
-      case 'component': return isRegisteredComponent(name)
-    }
-  }
-
-  return null
-}
-
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
-function createVueModuleInstance (instanceId, moduleGetter) {
+function createVueModuleInstance (instanceId, weex) {
   var exports = {};
-  VueFactory(exports, renderer);
+  VueFactory(exports, weex.document);
   var Vue = exports.Vue;
 
   var instance = instances[instanceId];
 
   // patch reserved tag detection to account for dynamically registered
   // components
+  var weexRegex = /^weex:/i;
   var isReservedTag = Vue.config.isReservedTag || (function () { return false; });
+  var isRuntimeComponent = Vue.config.isRuntimeComponent || (function () { return false; });
   Vue.config.isReservedTag = function (name) {
-    return components[name] || isReservedTag(name)
+    return (!isRuntimeComponent(name) && weex.supports(("@component/" + name))) ||
+      isReservedTag(name) ||
+      weexRegex.test(name)
   };
+  Vue.config.parsePlatformTagName = function (name) { return name.replace(weexRegex, ''); };
 
   // expose weex-specific info
   Vue.prototype.$instanceId = instanceId;
@@ -324,7 +206,7 @@ function createVueModuleInstance (instanceId, moduleGetter) {
 
   // expose weex native module getter on subVue prototype so that
   // vdom runtime modules can access native modules via vnode.context
-  Vue.prototype.$requireWeexModule = moduleGetter;
+  Vue.prototype.$requireWeexModule = weex.requireModule;
 
   // Hack `Vue` behavior to handle instance information and data
   // before root component created.
@@ -357,44 +239,6 @@ function createVueModuleInstance (instanceId, moduleGetter) {
   return Vue
 }
 
-/**
- * Generate native module getter. Each native module has several
- * methods to call. And all the behaviors is instance-related. So
- * this getter will return a set of methods which additionally
- * send current instance id to native when called.
- * @param  {string}  instanceId
- * @return {function}
- */
-function genModuleGetter (instanceId) {
-  var instance = instances[instanceId];
-  return function (name) {
-    var nativeModule = modules[name] || [];
-    var output = {};
-    var loop = function ( methodName ) {
-      Object.defineProperty(output, methodName, {
-        enumerable: true,
-        configurable: true,
-        get: function proxyGetter () {
-          return function () {
-            var args = [], len = arguments.length;
-            while ( len-- ) args[ len ] = arguments[ len ];
-
-            return instance.document.taskCenter.send('module', { module: name, method: methodName }, args)
-          }
-        },
-        set: function proxySetter (val) {
-          if (typeof val === 'function') {
-            return instance.document.taskCenter.send('module', { module: name, method: methodName }, [val])
-          }
-        }
-      });
-    };
-
-    for (var methodName in nativeModule) loop( methodName );
-    return output
-  }
-}
-
 /**
  * Generate HTML5 Timer APIs. An important point is that the callback
  * will be converted into callback id when sent to native. So the
@@ -459,58 +303,6 @@ function callFunction (globalObjects, body) {
   return result.apply(void 0, globalValues)
 }
 
-/**
- * Call a new function generated on the V8 native side.
- *
- * This function helps speed up bundle compiling. Normally, the V8
- * engine needs to download, parse, and compile a bundle on every
- * visit. If 'compileBundle()' is available on native side,
- * the downloding, parsing, and compiling steps would be skipped.
- * @param  {object} globalObjects
- * @param  {string} body
- * @return {boolean}
- */
-function callFunctionNative (globalObjects, body) {
-  if (typeof renderer.compileBundle !== 'function') {
-    return false
-  }
-
-  var fn = void 0;
-  var isNativeCompileOk = false;
-  var script = '(function (';
-  var globalKeys = [];
-  var globalValues = [];
-  for (var key in globalObjects) {
-    globalKeys.push(key);
-    globalValues.push(globalObjects[key]);
-  }
-  for (var i = 0; i < globalKeys.length - 1; ++i) {
-    script += globalKeys[i];
-    script += ',';
-  }
-  script += globalKeys[globalKeys.length - 1];
-  script += ') {';
-  script += body;
-  script += '} )';
-
-  try {
-    var weex = globalObjects.weex || {};
-    var config = weex.config || {};
-    fn = renderer.compileBundle(script,
-      config.bundleUrl,
-      config.bundleDigest,
-      config.codeCachePath);
-    if (fn && typeof fn === 'function') {
-      fn.apply(void 0, globalValues);
-      isNativeCompileOk = true;
-    }
-  } catch (e) {
-    console.error(e);
-  }
-
-  return isNativeCompileOk
-}
-
 exports.init = init;
 exports.reset = reset;
 exports.createInstance = createInstance;
@@ -518,8 +310,3 @@ exports.destroyInstance = destroyInstance;
 exports.refreshInstance = refreshInstance;
 exports.getRoot = getRoot;
 exports.receiveTasks = receiveTasks;
-exports.registerModules = registerModules;
-exports.isRegisteredModule = isRegisteredModule;
-exports.registerComponents = registerComponents;
-exports.isRegisteredComponent = isRegisteredComponent;
-exports.supports = supports;

From f865b0d7678beb70765ec8fd560008bebb51b923 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 10:14:32 -0400
Subject: [PATCH 184/911] build: release 2.5.1

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index c1055fbace9..40c5d49c3ae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.0",
+  "version": "2.5.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 54484650fe7..2ab539b503b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.0",
+  "version": "2.5.1",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 6658b81a3b9e9d1d4285b4b985cddcdee930dae8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 12:42:42 -0400
Subject: [PATCH 185/911] ci: adjust cache

---
 .circleci/config.yml                          |   11 +-
 .../vue-server-renderer/package-lock.json     | 7257 -----------------
 packages/vue-server-renderer/package.json     |    2 +-
 3 files changed, 2 insertions(+), 7268 deletions(-)
 delete mode 100644 packages/vue-server-renderer/package-lock.json

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 02190c801e2..99fa8891655 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -15,21 +15,12 @@ jobs:
             - v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
             - v1-vue-{{ .Branch }}-
             - v1-vue-
-      - restore_cache:
-          keys:
-            - v1-vue-ssr-{{ .Branch }}-{{ checksum "packages/vue-server-renderer/package-lock.json" }}
-            - v1-vue-ssr-{{ .Branch }}-
-            - v1-vue-ssr-
       - run: npm install
-      - run: cd packages/vue-server-renderer && npm install
+      - run: cd packages/vue-server-renderer && npm install vue
       - save_cache:
           key: v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
           paths:
             - node_modules/
-      - save_cache:
-          key: v1-vue-ssr-{{ .Branch }}-{{ checksum "packages/vue-server-renderer/package-lock.json" }}
-          paths:
-            - packages/vue-server-renderer/node_modules/
       - persist_to_workspace:
           root: ~/project
           paths:
diff --git a/packages/vue-server-renderer/package-lock.json b/packages/vue-server-renderer/package-lock.json
deleted file mode 100644
index 427423b4732..00000000000
--- a/packages/vue-server-renderer/package-lock.json
+++ /dev/null
@@ -1,7257 +0,0 @@
-{
-  "name": "vue-server-renderer",
-  "version": "2.5.1",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "ansi-regex": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
-    },
-    "ansi-styles": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
-      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4="
-    },
-    "chalk": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
-      "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
-      "requires": {
-        "ansi-styles": "2.2.1",
-        "escape-string-regexp": "1.0.5",
-        "has-ansi": "2.0.0",
-        "strip-ansi": "3.0.1",
-        "supports-color": "2.0.0"
-      }
-    },
-    "escape-string-regexp": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
-    },
-    "has-ansi": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
-      "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
-      "requires": {
-        "ansi-regex": "2.1.1"
-      }
-    },
-    "hash-sum": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/hash-sum/-/hash-sum-1.0.2.tgz",
-      "integrity": "sha1-M7QHd3VMZDJXPBIMw4CLvRDUfwQ="
-    },
-    "he": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/he/-/he-1.1.1.tgz",
-      "integrity": "sha1-k0EP0hsAlzUVH4howvJx80J+I/0="
-    },
-    "lodash._reinterpolate": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz",
-      "integrity": "sha1-DM8tiRZq8Ds2Y8eWU4t1rG4RTZ0="
-    },
-    "lodash.template": {
-      "version": "4.4.0",
-      "resolved": "https://registry.npmjs.org/lodash.template/-/lodash.template-4.4.0.tgz",
-      "integrity": "sha1-5zoDhcg1VZF0bgILmWecaQ5o+6A=",
-      "requires": {
-        "lodash._reinterpolate": "3.0.0",
-        "lodash.templatesettings": "4.1.0"
-      }
-    },
-    "lodash.templatesettings": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/lodash.templatesettings/-/lodash.templatesettings-4.1.0.tgz",
-      "integrity": "sha1-K01OlbpEDZFf8IvImeRVNmZxMxY=",
-      "requires": {
-        "lodash._reinterpolate": "3.0.0"
-      }
-    },
-    "lodash.uniq": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/lodash.uniq/-/lodash.uniq-4.5.0.tgz",
-      "integrity": "sha1-0CJTc662Uq3BvILklFM5qEJ1R3M="
-    },
-    "path-parse": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.5.tgz",
-      "integrity": "sha1-PBrfhx6pzWyUMbbqK9dKD/BVxME="
-    },
-    "resolve": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.4.0.tgz",
-      "integrity": "sha512-aW7sVKPufyHqOmyyLzg/J+8606v5nevBgaliIlV7nUpVMsDnoBGV/cbSLNjZAg9q0Cfd/+easKVKQ8vOu8fn1Q==",
-      "requires": {
-        "path-parse": "1.0.5"
-      }
-    },
-    "serialize-javascript": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-1.4.0.tgz",
-      "integrity": "sha1-fJWFFNtqwkQ6irwGLcn3iGp/YAU="
-    },
-    "source-map": {
-      "version": "0.5.6",
-      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.6.tgz",
-      "integrity": "sha1-dc449SvwczxafwwRjYEzSiu19BI="
-    },
-    "strip-ansi": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
-      "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
-      "requires": {
-        "ansi-regex": "2.1.1"
-      }
-    },
-    "supports-color": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
-      "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
-    },
-    "vue": {
-      "version": "file:../..",
-      "dev": true,
-      "dependencies": {
-        "JSONStream": {
-          "version": "1.3.1",
-          "bundled": true,
-          "requires": {
-            "jsonparse": "1.3.1",
-            "through": "2.3.8"
-          }
-        },
-        "abbrev": {
-          "version": "1.0.9",
-          "bundled": true
-        },
-        "accepts": {
-          "version": "1.3.3",
-          "bundled": true,
-          "requires": {
-            "mime-types": "2.1.16",
-            "negotiator": "0.6.1"
-          }
-        },
-        "acorn-dynamic-import": {
-          "version": "2.0.2",
-          "bundled": true,
-          "requires": {
-            "acorn": "4.0.13"
-          },
-          "dependencies": {
-            "acorn": {
-              "version": "4.0.13",
-              "bundled": true
-            }
-          }
-        },
-        "adm-zip": {
-          "version": "0.4.7",
-          "bundled": true
-        },
-        "after": {
-          "version": "0.8.2",
-          "bundled": true
-        },
-        "agent-base": {
-          "version": "2.1.1",
-          "bundled": true,
-          "requires": {
-            "extend": "3.0.1",
-            "semver": "5.0.3"
-          },
-          "dependencies": {
-            "semver": {
-              "version": "5.0.3",
-              "bundled": true
-            }
-          }
-        },
-        "ajv": {
-          "version": "4.11.8",
-          "bundled": true,
-          "requires": {
-            "co": "4.6.0",
-            "json-stable-stringify": "1.0.1"
-          }
-        },
-        "ajv-keywords": {
-          "version": "1.5.1",
-          "bundled": true
-        },
-        "align-text": {
-          "version": "0.1.4",
-          "bundled": true,
-          "requires": {
-            "kind-of": "3.2.2",
-            "longest": "1.0.1",
-            "repeat-string": "1.6.1"
-          }
-        },
-        "amdefine": {
-          "version": "1.0.1",
-          "bundled": true
-        },
-        "ansi-escapes": {
-          "version": "1.4.0",
-          "bundled": true
-        },
-        "anymatch": {
-          "version": "1.3.2",
-          "bundled": true,
-          "requires": {
-            "micromatch": "2.3.11",
-            "normalize-path": "2.1.1"
-          }
-        },
-        "archiver": {
-          "version": "1.3.0",
-          "bundled": true,
-          "requires": {
-            "archiver-utils": "1.3.0",
-            "async": "2.5.0",
-            "buffer-crc32": "0.2.13",
-            "glob": "7.1.2",
-            "lodash": "4.17.4",
-            "readable-stream": "2.3.3",
-            "tar-stream": "1.5.4",
-            "walkdir": "0.0.11",
-            "zip-stream": "1.2.0"
-          },
-          "dependencies": {
-            "async": {
-              "version": "2.5.0",
-              "bundled": true,
-              "requires": {
-                "lodash": "4.17.4"
-              }
-            }
-          }
-        },
-        "archiver-utils": {
-          "version": "1.3.0",
-          "bundled": true,
-          "requires": {
-            "glob": "7.1.2",
-            "graceful-fs": "4.1.11",
-            "lazystream": "1.0.0",
-            "lodash": "4.17.4",
-            "normalize-path": "2.1.1",
-            "readable-stream": "2.3.3"
-          }
-        },
-        "argparse": {
-          "version": "1.0.9",
-          "bundled": true,
-          "requires": {
-            "sprintf-js": "1.0.3"
-          }
-        },
-        "arr-diff": {
-          "version": "2.0.0",
-          "bundled": true,
-          "requires": {
-            "arr-flatten": "1.1.0"
-          }
-        },
-        "arr-flatten": {
-          "version": "1.1.0",
-          "bundled": true
-        },
-        "array-find-index": {
-          "version": "1.0.2",
-          "bundled": true
-        },
-        "array-ify": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "array-slice": {
-          "version": "0.2.3",
-          "bundled": true
-        },
-        "array-union": {
-          "version": "1.0.2",
-          "bundled": true,
-          "requires": {
-            "array-uniq": "1.0.3"
-          }
-        },
-        "array-uniq": {
-          "version": "1.0.3",
-          "bundled": true
-        },
-        "array-unique": {
-          "version": "0.2.1",
-          "bundled": true
-        },
-        "arraybuffer.slice": {
-          "version": "0.0.6",
-          "bundled": true
-        },
-        "arrify": {
-          "version": "1.0.1",
-          "bundled": true
-        },
-        "asn1": {
-          "version": "0.2.3",
-          "bundled": true
-        },
-        "asn1.js": {
-          "version": "4.9.1",
-          "bundled": true,
-          "requires": {
-            "bn.js": "4.11.8",
-            "inherits": "2.0.3",
-            "minimalistic-assert": "1.0.0"
-          }
-        },
-        "assert": {
-          "version": "1.4.1",
-          "bundled": true,
-          "requires": {
-            "util": "0.10.3"
-          }
-        },
-        "assert-plus": {
-          "version": "0.2.0",
-          "bundled": true
-        },
-        "assertion-error": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "ast-types": {
-          "version": "0.9.12",
-          "bundled": true
-        },
-        "async": {
-          "version": "0.9.2",
-          "bundled": true
-        },
-        "async-each": {
-          "version": "1.0.1",
-          "bundled": true
-        },
-        "asynckit": {
-          "version": "0.4.0",
-          "bundled": true
-        },
-        "aws-sign2": {
-          "version": "0.6.0",
-          "bundled": true
-        },
-        "aws4": {
-          "version": "1.6.0",
-          "bundled": true
-        },
-        "babel-code-frame": {
-          "version": "6.26.0",
-          "bundled": true,
-          "requires": {
-            "esutils": "2.0.2",
-            "js-tokens": "3.0.2"
-          }
-        },
-        "babel-core": {
-          "version": "6.26.0",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "babel-code-frame": "6.26.0",
-            "babel-generator": "6.26.0",
-            "babel-helpers": "6.24.1",
-            "babel-messages": "6.23.0",
-            "babel-register": "6.26.0",
-            "babel-runtime": "6.26.0",
-            "babel-template": "6.26.0",
-            "babel-traverse": "6.26.0",
-            "babel-types": "6.26.0",
-            "babylon": "6.18.0",
-            "convert-source-map": "1.5.0",
-            "debug": "2.6.8",
-            "json5": "0.5.1",
-            "lodash": "4.17.4",
-            "path-is-absolute": "1.0.1",
-            "private": "0.1.7",
-            "slash": "1.0.0",
-            "source-map": "0.5.7"
-          }
-        },
-        "babel-eslint": {
-          "version": "7.2.3",
-          "bundled": true,
-          "requires": {
-            "babel-code-frame": "6.26.0",
-            "babel-traverse": "6.26.0",
-            "babel-types": "6.26.0",
-            "babylon": "6.18.0"
-          }
-        },
-        "babel-generator": {
-          "version": "6.26.0",
-          "bundled": true,
-          "requires": {
-            "babel-messages": "6.23.0",
-            "babel-runtime": "6.26.0",
-            "babel-types": "6.26.0",
-            "detect-indent": "4.0.0",
-            "jsesc": "1.3.0",
-            "lodash": "4.17.4",
-            "source-map": "0.5.7",
-            "trim-right": "1.0.1"
-          }
-        },
-        "babel-helper-call-delegate": {
-          "version": "6.24.1",
-          "bundled": true,
-          "requires": {
-            "babel-helper-hoist-variables": "6.24.1",
-            "babel-runtime": "6.26.0",
-            "babel-traverse": "6.26.0",
-            "babel-types": "6.26.0"
-          }
-        },
-        "babel-helper-define-map": {
-          "version": "6.26.0",
-          "bundled": true,
-          "requires": {
-            "babel-helper-function-name": "6.24.1",
-            "babel-runtime": "6.26.0",
-            "babel-types": "6.26.0",
-            "lodash": "4.17.4"
-          }
-        },
-        "babel-helper-function-name": {
-          "version": "6.24.1",
-          "bundled": true,
-          "requires": {
-            "babel-helper-get-function-arity": "6.24.1",
-            "babel-runtime": "6.26.0",
-            "babel-template": "6.26.0",
-            "babel-traverse": "6.26.0",
-            "babel-types": "6.26.0"
-          }
-        },
-        "babel-helper-get-function-arity": {
-          "version": "6.24.1",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0",
-            "babel-types": "6.26.0"
-          }
-        },
-        "babel-helper-hoist-variables": {
-          "version": "6.24.1",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0",
-            "babel-types": "6.26.0"
-          }
-        },
-        "babel-helper-optimise-call-expression": {
-          "version": "6.24.1",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0",
-            "babel-types": "6.26.0"
-          }
-        },
-        "babel-helper-regex": {
-          "version": "6.26.0",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0",
-            "babel-types": "6.26.0",
-            "lodash": "4.17.4"
-          }
-        },
-        "babel-helper-replace-supers": {
-          "version": "6.24.1",
-          "bundled": true,
-          "requires": {
-            "babel-helper-optimise-call-expression": "6.24.1",
-            "babel-messages": "6.23.0",
-            "babel-runtime": "6.26.0",
-            "babel-template": "6.26.0",
-            "babel-traverse": "6.26.0",
-            "babel-types": "6.26.0"
-          }
-        },
-        "babel-helper-vue-jsx-merge-props": {
-          "version": "2.0.2",
-          "bundled": true
-        },
-        "babel-helpers": {
-          "version": "6.24.1",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "babel-runtime": "6.26.0",
-            "babel-template": "6.26.0"
-          }
-        },
-        "babel-loader": {
-          "version": "7.1.2",
-          "bundled": true,
-          "requires": {
-            "find-cache-dir": "1.0.0",
-            "loader-utils": "1.1.0",
-            "mkdirp": "0.5.1"
-          }
-        },
-        "babel-messages": {
-          "version": "6.23.0",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0"
-          }
-        },
-        "babel-plugin-check-es2015-constants": {
-          "version": "6.22.0",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0"
-          }
-        },
-        "babel-plugin-istanbul": {
-          "version": "4.1.4",
-          "bundled": true,
-          "requires": {
-            "find-up": "2.1.0",
-            "istanbul-lib-instrument": "1.7.5",
-            "test-exclude": "4.1.1"
-          }
-        },
-        "babel-plugin-syntax-class-properties": {
-          "version": "6.13.0",
-          "bundled": true
-        },
-        "babel-plugin-syntax-dynamic-import": {
-          "version": "6.18.0",
-          "bundled": true
-        },
-        "babel-plugin-syntax-flow": {
-          "version": "6.18.0",
-          "bundled": true
-        },
-        "babel-plugin-syntax-jsx": {
-          "version": "6.18.0",
-          "bundled": true
-        },
-        "babel-plugin-transform-class-properties": {
-          "version": "6.24.1",
-          "bundled": true,
-          "requires": {
-            "babel-helper-function-name": "6.24.1",
-            "babel-plugin-syntax-class-properties": "6.13.0",
-            "babel-runtime": "6.26.0",
-            "babel-template": "6.26.0"
-          }
-        },
-        "babel-plugin-transform-es2015-arrow-functions": {
-          "version": "6.22.0",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0"
-          }
-        },
-        "babel-plugin-transform-es2015-block-scoped-functions": {
-          "version": "6.22.0",
-          "bundled": true,
-          "requires": {
-            "babel-runtime": "6.26.0"
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-          "bundled": true
-        },
-        "tryit": {
-          "version": "1.0.3",
-          "bundled": true
-        },
-        "tty-browserify": {
-          "version": "0.0.0",
-          "bundled": true
-        },
-        "tunnel-agent": {
-          "version": "0.6.0",
-          "bundled": true,
-          "requires": {
-            "safe-buffer": "5.1.1"
-          }
-        },
-        "tweetnacl": {
-          "version": "0.14.5",
-          "bundled": true,
-          "optional": true
-        },
-        "type-check": {
-          "version": "0.3.2",
-          "bundled": true,
-          "requires": {
-            "prelude-ls": "1.1.2"
-          }
-        },
-        "type-detect": {
-          "version": "0.1.1",
-          "bundled": true
-        },
-        "type-is": {
-          "version": "1.6.15",
-          "bundled": true,
-          "requires": {
-            "media-typer": "0.3.0",
-            "mime-types": "2.1.16"
-          }
-        },
-        "typedarray": {
-          "version": "0.0.6",
-          "bundled": true
-        },
-        "typescript": {
-          "version": "2.5.2",
-          "bundled": true
-        },
-        "uglify-js": {
-          "version": "3.0.28",
-          "bundled": true,
-          "requires": {
-            "commander": "2.11.0",
-            "source-map": "0.5.7"
-          }
-        },
-        "uglify-to-browserify": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "ultron": {
-          "version": "1.0.2",
-          "bundled": true
-        },
-        "underscore.string": {
-          "version": "3.3.4",
-          "bundled": true,
-          "requires": {
-            "sprintf-js": "1.0.3",
-            "util-deprecate": "1.0.2"
-          }
-        },
-        "union": {
-          "version": "0.4.6",
-          "bundled": true,
-          "requires": {
-            "qs": "2.3.3"
-          },
-          "dependencies": {
-            "qs": {
-              "version": "2.3.3",
-              "bundled": true
-            }
-          }
-        },
-        "unpipe": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "url": {
-          "version": "0.11.0",
-          "bundled": true,
-          "requires": {
-            "punycode": "1.3.2",
-            "querystring": "0.2.0"
-          },
-          "dependencies": {
-            "punycode": {
-              "version": "1.3.2",
-              "bundled": true
-            }
-          }
-        },
-        "url-join": {
-          "version": "2.0.2",
-          "bundled": true
-        },
-        "urlgrey": {
-          "version": "0.4.0",
-          "bundled": true,
-          "requires": {
-            "tape": "2.3.0"
-          }
-        },
-        "user-home": {
-          "version": "2.0.0",
-          "bundled": true
-        },
-        "useragent": {
-          "version": "2.2.1",
-          "bundled": true,
-          "requires": {
-            "lru-cache": "2.2.4",
-            "tmp": "0.0.29"
-          },
-          "dependencies": {
-            "lru-cache": {
-              "version": "2.2.4",
-              "bundled": true
-            }
-          }
-        },
-        "util": {
-          "version": "0.10.3",
-          "bundled": true,
-          "requires": {
-            "inherits": "2.0.1"
-          },
-          "dependencies": {
-            "inherits": {
-              "version": "2.0.1",
-              "bundled": true
-            }
-          }
-        },
-        "util-deprecate": {
-          "version": "1.0.2",
-          "bundled": true
-        },
-        "utils-merge": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "uuid": {
-          "version": "3.1.0",
-          "bundled": true
-        },
-        "validate-npm-package-license": {
-          "version": "3.0.1",
-          "bundled": true,
-          "requires": {
-            "spdx-correct": "1.0.2",
-            "spdx-expression-parse": "1.0.4"
-          }
-        },
-        "vargs": {
-          "version": "0.1.0",
-          "bundled": true
-        },
-        "verror": {
-          "version": "1.10.0",
-          "bundled": true,
-          "requires": {
-            "assert-plus": "1.0.0",
-            "core-util-is": "1.0.2",
-            "extsprintf": "1.3.0"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true
-            }
-          }
-        },
-        "vm-browserify": {
-          "version": "0.0.4",
-          "bundled": true,
-          "requires": {
-            "indexof": "0.0.1"
-          }
-        },
-        "void-elements": {
-          "version": "2.0.1",
-          "bundled": true
-        },
-        "walkdir": {
-          "version": "0.0.11",
-          "bundled": true
-        },
-        "watchpack": {
-          "version": "1.4.0",
-          "bundled": true,
-          "requires": {
-            "async": "2.5.0",
-            "chokidar": "1.7.0",
-            "graceful-fs": "4.1.11"
-          },
-          "dependencies": {
-            "async": {
-              "version": "2.5.0",
-              "bundled": true,
-              "requires": {
-                "lodash": "4.17.4"
-              }
-            }
-          }
-        },
-        "wd": {
-          "version": "1.4.0",
-          "bundled": true,
-          "requires": {
-            "archiver": "1.3.0",
-            "async": "2.0.1",
-            "lodash": "4.16.2",
-            "mkdirp": "0.5.1",
-            "q": "1.4.1",
-            "request": "2.79.0",
-            "underscore.string": "3.3.4",
-            "vargs": "0.1.0"
-          },
-          "dependencies": {
-            "async": {
-              "version": "2.0.1",
-              "bundled": true,
-              "requires": {
-                "lodash": "4.16.2"
-              }
-            },
-            "caseless": {
-              "version": "0.11.0",
-              "bundled": true
-            },
-            "har-validator": {
-              "version": "2.0.6",
-              "bundled": true,
-              "requires": {
-                "commander": "2.11.0",
-                "is-my-json-valid": "2.16.1",
-                "pinkie-promise": "2.0.1"
-              }
-            },
-            "lodash": {
-              "version": "4.16.2",
-              "bundled": true
-            },
-            "q": {
-              "version": "1.4.1",
-              "bundled": true
-            },
-            "qs": {
-              "version": "6.3.2",
-              "bundled": true
-            },
-            "request": {
-              "version": "2.79.0",
-              "bundled": true,
-              "requires": {
-                "aws-sign2": "0.6.0",
-                "aws4": "1.6.0",
-                "caseless": "0.11.0",
-                "combined-stream": "1.0.5",
-                "extend": "3.0.1",
-                "forever-agent": "0.6.1",
-                "form-data": "2.1.4",
-                "har-validator": "2.0.6",
-                "hawk": "3.1.3",
-                "http-signature": "1.1.1",
-                "is-typedarray": "1.0.0",
-                "isstream": "0.1.2",
-                "json-stringify-safe": "5.0.1",
-                "mime-types": "2.1.16",
-                "oauth-sign": "0.8.2",
-                "qs": "6.3.2",
-                "stringstream": "0.0.5",
-                "tough-cookie": "2.3.2",
-                "tunnel-agent": "0.4.3",
-                "uuid": "3.1.0"
-              }
-            },
-            "tunnel-agent": {
-              "version": "0.4.3",
-              "bundled": true
-            }
-          }
-        },
-        "webpack": {
-          "version": "2.7.0",
-          "bundled": true,
-          "requires": {
-            "acorn": "5.1.1",
-            "acorn-dynamic-import": "2.0.2",
-            "ajv": "4.11.8",
-            "ajv-keywords": "1.5.1",
-            "async": "2.5.0",
-            "enhanced-resolve": "3.4.1",
-            "interpret": "1.0.3",
-            "json-loader": "0.5.7",
-            "json5": "0.5.1",
-            "loader-runner": "2.3.0",
-            "loader-utils": "0.2.17",
-            "memory-fs": "0.4.1",
-            "mkdirp": "0.5.1",
-            "node-libs-browser": "2.0.0",
-            "source-map": "0.5.7",
-            "supports-color": "3.2.3",
-            "tapable": "0.2.8",
-            "uglify-js": "2.8.29",
-            "watchpack": "1.4.0",
-            "webpack-sources": "1.0.1",
-            "yargs": "6.6.0"
-          },
-          "dependencies": {
-            "acorn": {
-              "version": "5.1.1",
-              "bundled": true
-            },
-            "async": {
-              "version": "2.5.0",
-              "bundled": true,
-              "requires": {
-                "lodash": "4.17.4"
-              }
-            },
-            "camelcase": {
-              "version": "1.2.1",
-              "bundled": true
-            },
-            "loader-utils": {
-              "version": "0.2.17",
-              "bundled": true,
-              "requires": {
-                "big.js": "3.1.3",
-                "emojis-list": "2.1.0",
-                "json5": "0.5.1",
-                "object-assign": "4.1.1"
-              }
-            },
-            "supports-color": {
-              "version": "3.2.3",
-              "bundled": true,
-              "requires": {
-                "has-flag": "1.0.0"
-              }
-            },
-            "uglify-js": {
-              "version": "2.8.29",
-              "bundled": true,
-              "requires": {
-                "source-map": "0.5.7",
-                "uglify-to-browserify": "1.0.2",
-                "yargs": "3.10.0"
-              },
-              "dependencies": {
-                "yargs": {
-                  "version": "3.10.0",
-                  "bundled": true,
-                  "requires": {
-                    "camelcase": "1.2.1",
-                    "cliui": "2.1.0",
-                    "decamelize": "1.2.0",
-                    "window-size": "0.1.0"
-                  }
-                }
-              }
-            },
-            "yargs": {
-              "version": "6.6.0",
-              "bundled": true,
-              "requires": {
-                "camelcase": "3.0.0",
-                "cliui": "3.2.0",
-                "decamelize": "1.2.0",
-                "get-caller-file": "1.0.2",
-                "os-locale": "1.4.0",
-                "read-pkg-up": "1.0.1",
-                "require-directory": "2.1.1",
-                "require-main-filename": "1.0.1",
-                "set-blocking": "2.0.0",
-                "string-width": "1.0.2",
-                "which-module": "1.0.0",
-                "y18n": "3.2.1",
-                "yargs-parser": "4.2.1"
-              },
-              "dependencies": {
-                "camelcase": {
-                  "version": "3.0.0",
-                  "bundled": true
-                },
-                "cliui": {
-                  "version": "3.2.0",
-                  "bundled": true,
-                  "requires": {
-                    "string-width": "1.0.2",
-                    "wrap-ansi": "2.1.0"
-                  }
-                }
-              }
-            }
-          }
-        },
-        "webpack-dev-middleware": {
-          "version": "1.12.0",
-          "bundled": true,
-          "requires": {
-            "memory-fs": "0.4.1",
-            "mime": "1.4.0",
-            "path-is-absolute": "1.0.1",
-            "range-parser": "1.2.0",
-            "time-stamp": "2.0.0"
-          },
-          "dependencies": {
-            "mime": {
-              "version": "1.4.0",
-              "bundled": true
-            }
-          }
-        },
-        "webpack-sources": {
-          "version": "1.0.1",
-          "bundled": true,
-          "requires": {
-            "source-list-map": "2.0.0",
-            "source-map": "0.5.7"
-          }
-        },
-        "weex-js-runtime": {
-          "version": "0.20.9",
-          "bundled": true
-        },
-        "weex-vdom-tester": {
-          "version": "0.2.0",
-          "bundled": true,
-          "requires": {
-            "jsonp": "0.2.1",
-            "xhr2": "0.1.4"
-          }
-        },
-        "which": {
-          "version": "1.3.0",
-          "bundled": true,
-          "requires": {
-            "isexe": "2.0.0"
-          }
-        },
-        "which-module": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "window-size": {
-          "version": "0.1.0",
-          "bundled": true
-        },
-        "word-wrap": {
-          "version": "1.2.3",
-          "bundled": true
-        },
-        "wordwrap": {
-          "version": "0.0.3",
-          "bundled": true
-        },
-        "wrap-ansi": {
-          "version": "2.1.0",
-          "bundled": true,
-          "requires": {
-            "string-width": "1.0.2"
-          }
-        },
-        "wrappy": {
-          "version": "1.0.2",
-          "bundled": true
-        },
-        "write": {
-          "version": "0.2.1",
-          "bundled": true,
-          "requires": {
-            "mkdirp": "0.5.1"
-          }
-        },
-        "ws": {
-          "version": "1.1.2",
-          "bundled": true,
-          "requires": {
-            "options": "0.0.6",
-            "ultron": "1.0.2"
-          }
-        },
-        "wtf-8": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "xhr2": {
-          "version": "0.1.4",
-          "bundled": true
-        },
-        "xmlhttprequest-ssl": {
-          "version": "1.5.3",
-          "bundled": true
-        },
-        "xregexp": {
-          "version": "2.0.0",
-          "bundled": true
-        },
-        "xtend": {
-          "version": "4.0.1",
-          "bundled": true
-        },
-        "y18n": {
-          "version": "3.2.1",
-          "bundled": true
-        },
-        "yallist": {
-          "version": "2.1.2",
-          "bundled": true
-        },
-        "yargs": {
-          "version": "3.10.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "camelcase": "1.2.1",
-            "cliui": "2.1.0",
-            "decamelize": "1.2.0",
-            "window-size": "0.1.0"
-          },
-          "dependencies": {
-            "camelcase": {
-              "version": "1.2.1",
-              "bundled": true,
-              "optional": true
-            }
-          }
-        },
-        "yargs-parser": {
-          "version": "4.2.1",
-          "bundled": true,
-          "requires": {
-            "camelcase": "3.0.0"
-          },
-          "dependencies": {
-            "camelcase": {
-              "version": "3.0.0",
-              "bundled": true
-            }
-          }
-        },
-        "yauzl": {
-          "version": "2.4.1",
-          "bundled": true,
-          "requires": {
-            "fd-slicer": "1.0.1"
-          }
-        },
-        "yeast": {
-          "version": "0.1.2",
-          "bundled": true
-        },
-        "zip-stream": {
-          "version": "1.2.0",
-          "bundled": true,
-          "requires": {
-            "archiver-utils": "1.3.0",
-            "compress-commons": "1.2.0",
-            "lodash": "4.17.4",
-            "readable-stream": "2.3.3"
-          }
-        }
-      }
-    }
-  }
-}
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index d8bd0f70489..a4a6c5b0ae5 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -29,7 +29,7 @@
     "source-map": "0.5.6"
   },
   "devDependencies": {
-    "vue": "file:../../"
+    "vue": "file:../.."
   },
   "homepage": "https://github.com/vuejs/vue/tree/dev/packages/vue-server-renderer#readme"
 }

From 4e0c48511d49f331fde31fc87b6ca428330f32d1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 15:37:52 -0400
Subject: [PATCH 186/911] fix: further adjust nextTick strategy

fix #6813
---
 src/core/util/env.js                        |  85 --------------
 src/core/util/index.js                      |   1 +
 src/core/util/next-tick.js                  | 116 ++++++++++++++++++++
 src/platforms/web/runtime/modules/events.js |  32 +++---
 test/e2e/specs/async-edge-cases.html        |   2 +-
 test/unit/modules/util/next-tick.spec.js    |   2 +-
 6 files changed, 137 insertions(+), 101 deletions(-)
 create mode 100644 src/core/util/next-tick.js

diff --git a/src/core/util/env.js b/src/core/util/env.js
index ca14c30264a..30767958657 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -1,7 +1,4 @@
 /* @flow */
-/* globals MessageChannel */
-
-import { handleError } from './error'
 
 // can we use __proto__?
 export const hasProto = '__proto__' in {}
@@ -62,88 +59,6 @@ export const hasSymbol =
   typeof Symbol !== 'undefined' && isNative(Symbol) &&
   typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys)
 
-/**
- * Defer a task to execute it asynchronously.
- */
-export const nextTick = (function () {
-  const callbacks = []
-  let pending = false
-  let timerFunc
-
-  function nextTickHandler () {
-    pending = false
-    const copies = callbacks.slice(0)
-    callbacks.length = 0
-    for (let i = 0; i < copies.length; i++) {
-      copies[i]()
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = () => {
-      setImmediate(nextTickHandler)
-    }
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    const channel = new MessageChannel()
-    const port = channel.port2
-    channel.port1.onmessage = nextTickHandler
-    timerFunc = () => {
-      port.postMessage(1)
-    }
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    const p = Promise.resolve()
-    timerFunc = () => {
-      p.then(nextTickHandler)
-    }
-  } else {
-    // fallback to setTimeout
-    timerFunc = () => {
-      setTimeout(nextTickHandler, 0)
-    }
-  }
-
-  return function queueNextTick (cb?: Function, ctx?: Object) {
-    let _resolve
-    callbacks.push(() => {
-      if (cb) {
-        try {
-          cb.call(ctx)
-        } catch (e) {
-          handleError(e, ctx, 'nextTick')
-        }
-      } else if (_resolve) {
-        _resolve(ctx)
-      }
-    })
-    if (!pending) {
-      pending = true
-      timerFunc()
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise((resolve, reject) => {
-        _resolve = resolve
-      })
-    }
-  }
-})()
-
 let _Set
 /* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
diff --git a/src/core/util/index.js b/src/core/util/index.js
index f88dd4ebc27..115d77cd175 100644
--- a/src/core/util/index.js
+++ b/src/core/util/index.js
@@ -7,4 +7,5 @@ export * from './options'
 export * from './debug'
 export * from './props'
 export * from './error'
+export * from './next-tick'
 export { defineReactive } from '../observer/index'
diff --git a/src/core/util/next-tick.js b/src/core/util/next-tick.js
new file mode 100644
index 00000000000..f721b191262
--- /dev/null
+++ b/src/core/util/next-tick.js
@@ -0,0 +1,116 @@
+/* @flow */
+/* globals MessageChannel */
+
+import { noop } from 'shared/util'
+import { handleError } from './error'
+import { isIOS, isNative } from './env'
+
+const callbacks = []
+let pending = false
+
+function flushCallbacks () {
+  pending = false
+  const copies = callbacks.slice(0)
+  callbacks.length = 0
+  for (let i = 0; i < copies.length; i++) {
+    copies[i]()
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+let microTimerFunc
+let macroTimerFunc
+let useMacroTask = false
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = () => {
+    setImmediate(flushCallbacks)
+  }
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  const channel = new MessageChannel()
+  const port = channel.port2
+  channel.port1.onmessage = flushCallbacks
+  macroTimerFunc = () => {
+    port.postMessage(1)
+  }
+} else {
+  macroTimerFunc = () => {
+    setTimeout(flushCallbacks, 0)
+  }
+}
+
+// Determine MicroTask defer implementation.
+// $flow-disable-line, istanbul ignore next
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  const p = Promise.resolve()
+  microTimerFunc = () => {
+    p.then(flushCallbacks)
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) setTimeout(noop)
+  }
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+export function withMacroTask (fn: Function): Function {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true
+    const res = fn.apply(null, arguments)
+    useMacroTask = false
+    return res
+  })
+}
+
+export function nextTick (cb?: Function, ctx?: Object): ?Promise {
+  let _resolve
+  callbacks.push(() => {
+    if (cb) {
+      try {
+        cb.call(ctx)
+      } catch (e) {
+        handleError(e, ctx, 'nextTick')
+      }
+    } else if (_resolve) {
+      _resolve(ctx)
+    }
+  })
+  if (!pending) {
+    pending = true
+    if (useMacroTask) {
+      macroTimerFunc()
+    } else {
+      microTimerFunc()
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(resolve => {
+      _resolve = resolve
+    })
+  }
+}
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 842cf2177d6..103dfe0ba5e 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -2,7 +2,7 @@
 
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
-import { isIE, supportsPassive } from 'core/util/env'
+import { withMacroTask, isIE, supportsPassive } from 'core/util/index'
 import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
 
 // normalize v-model event tokens that can only be determined at runtime.
@@ -28,6 +28,16 @@ function normalizeEvents (on) {
 
 let target: HTMLElement
 
+function createOnceHandler (handler, event, capture) {
+  const _target = target // save current target element in closure
+  return function onceHandler () {
+    const res = handler.apply(null, arguments)
+    if (res !== null) {
+      remove(event, onceHandler, capture, _target)
+    }
+  }
+}
+
 function add (
   event: string,
   handler: Function,
@@ -35,18 +45,8 @@ function add (
   capture: boolean,
   passive: boolean
 ) {
-  if (once) {
-    const oldHandler = handler
-    const _target = target // save current target element in closure
-    handler = function (ev) {
-      const res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments)
-      if (res !== null) {
-        remove(event, handler, capture, _target)
-      }
-    }
-  }
+  handler = withMacroTask(handler)
+  if (once) handler = createOnceHandler(handler, event, capture)
   target.addEventListener(
     event,
     handler,
@@ -62,7 +62,11 @@ function remove (
   capture: boolean,
   _target?: HTMLElement
 ) {
-  (_target || target).removeEventListener(event, handler, capture)
+  (_target || target).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  )
 }
 
 function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
diff --git a/test/e2e/specs/async-edge-cases.html b/test/e2e/specs/async-edge-cases.html
index fe5aa6160d3..4c7411b2e5d 100644
--- a/test/e2e/specs/async-edge-cases.html
+++ b/test/e2e/specs/async-edge-cases.html
@@ -26,7 +26,7 @@
 
     <!-- #6566 click event bubbling -->
     <div id="case-2">
-      <div v-if="expand">
+      <div class="panel" v-if="expand">
         <button @click="expand = false, countA++">Expand is True</button>
       </div>
       <div class="header" v-if="!expand" @click="expand = true, countB++">
diff --git a/test/unit/modules/util/next-tick.spec.js b/test/unit/modules/util/next-tick.spec.js
index 92afa7748b1..53f6124c1bb 100644
--- a/test/unit/modules/util/next-tick.spec.js
+++ b/test/unit/modules/util/next-tick.spec.js
@@ -1,4 +1,4 @@
-import { nextTick } from 'core/util/env'
+import { nextTick } from 'core/util/next-tick'
 
 describe('nextTick', () => {
   it('accepts a callback', done => {

From a11d6f37c2cededd2b3ec4c74942815bf16e34e0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 15:56:01 -0400
Subject: [PATCH 187/911] chore: fix flow

---
 src/core/util/next-tick.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/next-tick.js b/src/core/util/next-tick.js
index f721b191262..abc5ef3b6a1 100644
--- a/src/core/util/next-tick.js
+++ b/src/core/util/next-tick.js
@@ -86,7 +86,7 @@ export function withMacroTask (fn: Function): Function {
   })
 }
 
-export function nextTick (cb?: Function, ctx?: Object): ?Promise {
+export function nextTick (cb?: Function, ctx?: Object) {
   let _resolve
   callbacks.push(() => {
     if (cb) {

From 069c82bed7d8ca70a134e956f239d3157703d72e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 16:18:07 -0400
Subject: [PATCH 188/911] chore: coverage

---
 src/core/util/next-tick.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/util/next-tick.js b/src/core/util/next-tick.js
index abc5ef3b6a1..9e4f476d65b 100644
--- a/src/core/util/next-tick.js
+++ b/src/core/util/next-tick.js
@@ -50,13 +50,14 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     port.postMessage(1)
   }
 } else {
+  /* istanbul ignore next */
   macroTimerFunc = () => {
     setTimeout(flushCallbacks, 0)
   }
 }
 
 // Determine MicroTask defer implementation.
-// $flow-disable-line, istanbul ignore next
+/* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   const p = Promise.resolve()
   microTimerFunc = () => {

From fd0c4f5a6c9324a4943fe6e7f47bde8a05b4996d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 16:20:59 -0400
Subject: [PATCH 189/911] build: build 2.5.2

---
 dist/vue.common.js                          | 493 +++++++++++---------
 dist/vue.esm.js                             | 493 +++++++++++---------
 dist/vue.js                                 | 493 +++++++++++---------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  | 493 +++++++++++---------
 dist/vue.runtime.esm.js                     | 493 +++++++++++---------
 dist/vue.runtime.js                         | 493 +++++++++++---------
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 452 +++++++++---------
 packages/vue-server-renderer/build.js       | 452 +++++++++---------
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   | 348 ++++++--------
 packages/vue-template-compiler/build.js     | 348 ++++++--------
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 2334 insertions(+), 2236 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 0bee597551d..a2e14269bf4 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -466,6 +466,92 @@ function parsePath (path) {
 
 /*  */
 
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
 var warn = noop;
 var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
@@ -560,220 +646,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid = 0;
 
@@ -1777,6 +1649,165 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    var res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 var mark;
 var measure;
 
@@ -4899,7 +4930,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.1';
+Vue$3.version = '2.5.2';
 
 /*  */
 
@@ -6731,6 +6762,16 @@ function normalizeEvents (on) {
 
 var target$1;
 
+function createOnceHandler (handler, event, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
 function add$1 (
   event,
   handler,
@@ -6738,18 +6779,8 @@ function add$1 (
   capture,
   passive
 ) {
-  if (once$$1) {
-    var oldHandler = handler;
-    var _target = target$1; // save current target element in closure
-    handler = function (ev) {
-      var res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments);
-      if (res !== null) {
-        remove$2(event, handler, capture, _target);
-      }
-    };
-  }
+  handler = withMacroTask(handler);
+  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6765,7 +6796,11 @@ function remove$2 (
   capture,
   _target
 ) {
-  (_target || target$1).removeEventListener(event, handler, capture);
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
 }
 
 function updateDOMListeners (oldVnode, vnode) {
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 6bfa8c8d22d..beaec6fc3f1 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -464,6 +464,92 @@ function parsePath (path) {
 
 /*  */
 
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
 var warn = noop;
 var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
@@ -558,220 +644,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid = 0;
 
@@ -1775,6 +1647,165 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    var res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 var mark;
 var measure;
 
@@ -4897,7 +4928,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.1';
+Vue$3.version = '2.5.2';
 
 /*  */
 
@@ -6729,6 +6760,16 @@ function normalizeEvents (on) {
 
 var target$1;
 
+function createOnceHandler (handler, event, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
 function add$1 (
   event,
   handler,
@@ -6736,18 +6777,8 @@ function add$1 (
   capture,
   passive
 ) {
-  if (once$$1) {
-    var oldHandler = handler;
-    var _target = target$1; // save current target element in closure
-    handler = function (ev) {
-      var res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments);
-      if (res !== null) {
-        remove$2(event, handler, capture, _target);
-      }
-    };
-  }
+  handler = withMacroTask(handler);
+  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6763,7 +6794,11 @@ function remove$2 (
   capture,
   _target
 ) {
-  (_target || target$1).removeEventListener(event, handler, capture);
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
 }
 
 function updateDOMListeners (oldVnode, vnode) {
diff --git a/dist/vue.js b/dist/vue.js
index 36e01a47307..1d2b02ea047 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -470,6 +470,92 @@ function parsePath (path) {
 
 /*  */
 
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
 var warn = noop;
 var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
@@ -564,220 +650,6 @@ var formatComponentName = (noop);
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid = 0;
 
@@ -1781,6 +1653,165 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    var res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 var mark;
 var measure;
 
@@ -4888,7 +4919,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.1';
+Vue$3.version = '2.5.2';
 
 /*  */
 
@@ -6720,6 +6751,16 @@ function normalizeEvents (on) {
 
 var target$1;
 
+function createOnceHandler (handler, event, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
 function add$1 (
   event,
   handler,
@@ -6727,18 +6768,8 @@ function add$1 (
   capture,
   passive
 ) {
-  if (once$$1) {
-    var oldHandler = handler;
-    var _target = target$1; // save current target element in closure
-    handler = function (ev) {
-      var res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments);
-      if (res !== null) {
-        remove$2(event, handler, capture, _target);
-      }
-    };
-  }
+  handler = withMacroTask(handler);
+  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6754,7 +6785,11 @@ function remove$2 (
   capture,
   _target
 ) {
-  (_target || target$1).removeEventListener(event, handler, capture);
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
 }
 
 function updateDOMListeners (oldVnode, vnode) {
diff --git a/dist/vue.min.js b/dist/vue.min.js
index f3bb4e4ec5e..30eb181a922 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Ci.call(e)}function s(e){return"[object RegExp]"===Ci.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 4c620cea83e..789cc0b6071 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -462,6 +462,92 @@ function parsePath (path) {
 
 /*  */
 
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
 var warn = noop;
 var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
@@ -556,220 +642,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid$1 = 0;
 
@@ -1773,6 +1645,165 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    var res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 /* not type checking this file because flow doesn't play well with Proxy */
 
 var initProxy;
@@ -4895,7 +4926,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.1';
+Vue$3.version = '2.5.2';
 
 /*  */
 
@@ -6234,6 +6265,16 @@ function normalizeEvents (on) {
 
 var target$1;
 
+function createOnceHandler (handler, event, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
 function add$1 (
   event,
   handler,
@@ -6241,18 +6282,8 @@ function add$1 (
   capture,
   passive
 ) {
-  if (once$$1) {
-    var oldHandler = handler;
-    var _target = target$1; // save current target element in closure
-    handler = function (ev) {
-      var res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments);
-      if (res !== null) {
-        remove$2(event, handler, capture, _target);
-      }
-    };
-  }
+  handler = withMacroTask(handler);
+  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6268,7 +6299,11 @@ function remove$2 (
   capture,
   _target
 ) {
-  (_target || target$1).removeEventListener(event, handler, capture);
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
 }
 
 function updateDOMListeners (oldVnode, vnode) {
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 0040b3ffc5d..fe84e3f45e3 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -460,6 +460,92 @@ function parsePath (path) {
 
 /*  */
 
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
 var warn = noop;
 var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
@@ -554,220 +640,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid$1 = 0;
 
@@ -1771,6 +1643,165 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    var res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 /* not type checking this file because flow doesn't play well with Proxy */
 
 var initProxy;
@@ -4893,7 +4924,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.1';
+Vue$3.version = '2.5.2';
 
 /*  */
 
@@ -6232,6 +6263,16 @@ function normalizeEvents (on) {
 
 var target$1;
 
+function createOnceHandler (handler, event, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
 function add$1 (
   event,
   handler,
@@ -6239,18 +6280,8 @@ function add$1 (
   capture,
   passive
 ) {
-  if (once$$1) {
-    var oldHandler = handler;
-    var _target = target$1; // save current target element in closure
-    handler = function (ev) {
-      var res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments);
-      if (res !== null) {
-        remove$2(event, handler, capture, _target);
-      }
-    };
-  }
+  handler = withMacroTask(handler);
+  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6266,7 +6297,11 @@ function remove$2 (
   capture,
   _target
 ) {
-  (_target || target$1).removeEventListener(event, handler, capture);
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
 }
 
 function updateDOMListeners (oldVnode, vnode) {
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index e0c7d624a36..16ff77614f3 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -466,6 +466,92 @@ function parsePath (path) {
 
 /*  */
 
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
 var warn = noop;
 var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
@@ -560,220 +646,6 @@ var formatComponentName = (noop);
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid$1 = 0;
 
@@ -1777,6 +1649,165 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    var res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 /* not type checking this file because flow doesn't play well with Proxy */
 
 var initProxy;
@@ -4884,7 +4915,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.1';
+Vue$3.version = '2.5.2';
 
 /*  */
 
@@ -6223,6 +6254,16 @@ function normalizeEvents (on) {
 
 var target$1;
 
+function createOnceHandler (handler, event, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
 function add$1 (
   event,
   handler,
@@ -6230,18 +6271,8 @@ function add$1 (
   capture,
   passive
 ) {
-  if (once$$1) {
-    var oldHandler = handler;
-    var _target = target$1; // save current target element in closure
-    handler = function (ev) {
-      var res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments);
-      if (res !== null) {
-        remove$2(event, handler, capture, _target);
-      }
-    };
-  }
+  handler = withMacroTask(handler);
+  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6257,7 +6288,11 @@ function remove$2 (
   capture,
   _target
 ) {
-  (_target || target$1).removeEventListener(event, handler, capture);
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
 }
 
 function updateDOMListeners (oldVnode, vnode) {
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 4a56046c14d..787685ca491 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.1
+ * Vue.js v2.5.2
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Fn(t,"change")}}},show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},fi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},di={name:"transition",props:fi,abstract:!0,render:function(t){var e=this,n=this.$options._renderChildren;if(n&&(n=n.filter(function(t){return t.tag||mt(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!mt(l)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,at(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(mt(a))return u;var d,p=function(){d()};at(c,"afterEnter",p),at(c,"enterCancelled",p),at(f,"delayLeave",function(t){d=t})}}return i}}},pi=y({tag:String,moveClass:String},fi);delete pi.mode;var vi={Transition:di,TransitionGroup:{props:pi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Gn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(oi,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(oi,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ti)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&bo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=jo,Oe.config.isReservedAttr=go,Oe.config.getTagNamespace=function(t){return Eo(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(jo(t))return!1;if(t=t.toLowerCase(),null!=Io[t])return Io[t];var e=document.createElement(t);return t.indexOf("-")>-1?Io[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Io[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,li),y(Oe.options.components,vi),Oe.prototype.__patch__=dr?ui:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 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\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 4e9bd8ced79..300a12d15ba 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -596,6 +596,92 @@ function parsePath (path) {
   }
 }
 
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
 var SSR_ATTR = 'data-server-rendered';
 
 var ASSET_TYPES = [
@@ -802,220 +888,6 @@ var formatComponentName = (noop);
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid = 0;
 
@@ -1903,6 +1775,158 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 /*  */
 
 function genClassForVnode (vnode) {
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index c6aa16a1219..c1e672aa7a8 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -598,6 +598,92 @@ function parsePath (path) {
   }
 }
 
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
 var SSR_ATTR = 'data-server-rendered';
 
 var ASSET_TYPES = [
@@ -804,220 +890,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid = 0;
 
@@ -1905,6 +1777,158 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if (inBrowser && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 /*  */
 
 function genClassForVnode (vnode) {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index a4a6c5b0ae5..b22297fef42 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index cad795462fd..7b3a8f2c448 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -724,6 +724,92 @@ function def (obj, key, val, enumerable) {
   });
 }
 
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
 var ASSET_TYPES = [
   'component',
   'directive',
@@ -928,220 +1014,6 @@ var formatComponentName = (noop);
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid = 0;
 
@@ -1747,6 +1619,54 @@ function assertObjectType (name, value, vm) {
 
 /*  */
 
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+function flushCallbacks () {
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  channel.port1.onmessage = flushCallbacks;
+  
+} else {
+  /* istanbul ignore next */
+  
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  
+} else {
+  // fallback to macro
+  
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+
+/*  */
+
 /*  */
 
 // these are reserved for web because they are directly compiled away
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 43d9e55c775..78c3546dfc3 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -681,6 +681,92 @@ function def (obj, key, val, enumerable) {
   });
 }
 
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = UA && UA.indexOf('android') > 0;
+var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
 var ASSET_TYPES = [
   'component',
   'directive',
@@ -885,220 +971,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid = 0;
 
@@ -1704,6 +1576,54 @@ function assertObjectType (name, value, vm) {
 
 /*  */
 
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+function flushCallbacks () {
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  channel.port1.onmessage = flushCallbacks;
+  
+} else {
+  /* istanbul ignore next */
+  
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  
+} else {
+  // fallback to macro
+  
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+
+/*  */
+
 /*  */
 
 // these are reserved for web because they are directly compiled away
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 453ac294aa8..200638851ed 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 471de4a31d229e681cc9dce18632b5bcab944c77 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Oct 2017 16:21:00 -0400
Subject: [PATCH 190/911] build: release 2.5.2

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 40c5d49c3ae..9e19ef45739 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 2ab539b503b..a8c2ad3fba7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 9caed00d20f37c750e39db4ec86d278b453f0e5d Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Mon, 16 Oct 2017 02:26:08 +0800
Subject: [PATCH 191/911] fix(typing): relax $options type for TS2.6+ (#6819)

---
 types/vue.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/vue.d.ts b/types/vue.d.ts
index 0672226601b..53da4a44350 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -22,7 +22,7 @@ export interface CreateElement {
 
 export interface Vue {
   readonly $el: HTMLElement;
-  readonly $options: ComponentOptions<this>;
+  readonly $options: ComponentOptions<Vue>;
   readonly $parent: Vue;
   readonly $root: Vue;
   readonly $children: Vue[];

From b6c384dd78b56bd247e6a34d5aea0d3903f5b7fd Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Wed, 18 Oct 2017 12:26:55 +0800
Subject: [PATCH 192/911] fix(core): static trees should be cached on options
 (#6826) (#6837)

* test(once): failing test for #6826

* fix(core): static trees should be cached on options (#6826)
---
 .../instance/render-helpers/render-static.js  |  6 ++---
 test/unit/features/directives/once.spec.js    | 22 +++++++++++++++++++
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/render-helpers/render-static.js b/src/core/instance/render-helpers/render-static.js
index 02f424d234b..1236c94792c 100644
--- a/src/core/instance/render-helpers/render-static.js
+++ b/src/core/instance/render-helpers/render-static.js
@@ -11,8 +11,8 @@ export function renderStatic (
 ): VNode | Array<VNode> {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  const renderFns = this.$options.staticRenderFns
-  const cached = renderFns.cached || (renderFns.cached = [])
+  const options = this.$options
+  const cached = options.cached || (options.cached = [])
   let tree = cached[index]
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -22,7 +22,7 @@ export function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this)
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this)
   markStatic(tree, `__static__${index}`, false)
   return tree
 }
diff --git a/test/unit/features/directives/once.spec.js b/test/unit/features/directives/once.spec.js
index cdfdb0144ec..eca8be0a3ef 100644
--- a/test/unit/features/directives/once.spec.js
+++ b/test/unit/features/directives/once.spec.js
@@ -335,6 +335,28 @@ describe('Directive v-once', () => {
       vm.ok = false // teardown component with v-once
     }).then(done) // should not throw
   })
+
+  // #6826
+  it('should render different component instances properly', done => {
+    const vm = new Vue({
+      components: {
+        foo: {
+          props: ['name'],
+          template: '<div v-once>{{ name }}</div>'
+        }
+      },
+      template: `
+        <div>
+          <foo name="a" v-once></foo>
+          <foo name="b" v-once></foo>
+        </div>
+      `
+    }).$mount()
+    waitForUpdate(() => {
+      expect(vm.$el.children[0].innerHTML).toBe('a')
+      expect(vm.$el.children[1].innerHTML).toBe('b')
+    }).then(done)
+  })
 })
 
 function expectTextContent (vm, text) {

From a433b16588412980b4ab51924de1ef91b5226f56 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Wed, 18 Oct 2017 22:15:29 +0800
Subject: [PATCH 193/911] build: install dependency for vue-server-renderer in
 setup script (#6839)

---
 build/install-hooks.js |  8 --------
 build/setup.js         | 26 ++++++++++++++++++++++++++
 package.json           |  2 +-
 3 files changed, 27 insertions(+), 9 deletions(-)
 delete mode 100644 build/install-hooks.js
 create mode 100644 build/setup.js

diff --git a/build/install-hooks.js b/build/install-hooks.js
deleted file mode 100644
index e5f8ad84f52..00000000000
--- a/build/install-hooks.js
+++ /dev/null
@@ -1,8 +0,0 @@
-const { test, ln, chmod } = require('shelljs')
-
-if (test('-e', '.git/hooks')) {
-  ln('-sf', '../../build/git-hooks/pre-commit', '.git/hooks/pre-commit')
-  chmod('+x', '.git/hooks/pre-commit')
-  ln('-sf', '../../build/git-hooks/commit-msg', '.git/hooks/commit-msg')
-  chmod('+x', '.git/hooks/commit-msg')
-}
diff --git a/build/setup.js b/build/setup.js
new file mode 100644
index 00000000000..231e4365d56
--- /dev/null
+++ b/build/setup.js
@@ -0,0 +1,26 @@
+const { test, ln, chmod, cd, exec } = require('shelljs')
+const path = require('path')
+
+const baseUrl = path.resolve()
+
+function installHooks () {
+  if (test('-e', '.git/hooks')) {
+    ln('-sf', '../../build/git-hooks/pre-commit', '.git/hooks/pre-commit')
+    chmod('+x', '.git/hooks/pre-commit')
+    ln('-sf', '../../build/git-hooks/commit-msg', '.git/hooks/commit-msg')
+    chmod('+x', '.git/hooks/commit-msg')
+  }
+}
+
+function setupSSR () {
+  const ssrBase = path.resolve('packages/vue-server-renderer')
+  if (!test('-e', path.join(ssrBase, 'node_modules'))) {
+    cd(ssrBase)
+    exec('npm install')
+    cd(baseUrl)
+  }
+}
+
+installHooks()
+setupSSR()
+
diff --git a/package.json b/package.json
index a8c2ad3fba7..09af3ed7f70 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "release": "bash build/release.sh",
     "release:weex": "bash build/release-weex.sh",
     "release:note": "node build/gen-release-note.js",
-    "setup": "node build/install-hooks.js",
+    "setup": "node build/setup.js",
     "commit": "git-cz"
   },
   "repository": {

From 048e9407795ec7420d4b2962cbd50f769d3432fb Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Sat, 21 Oct 2017 20:32:02 +0800
Subject: [PATCH 194/911] build: map vue to local types, simplify build setup
 (#6860)

* build: map vue to local types, simplify build setup

* build: remove unnecessary install steps
---
 .circleci/config.yml       |  1 -
 build/setup.js             | 16 +---------------
 dist/vue.runtime.common.js |  6 +++---
 types/test/tsconfig.json   |  6 +++++-
 4 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 99fa8891655..0c5f49e158d 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -16,7 +16,6 @@ jobs:
             - v1-vue-{{ .Branch }}-
             - v1-vue-
       - run: npm install
-      - run: cd packages/vue-server-renderer && npm install vue
       - save_cache:
           key: v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
           paths:
diff --git a/build/setup.js b/build/setup.js
index 231e4365d56..3427c5aa966 100644
--- a/build/setup.js
+++ b/build/setup.js
@@ -1,7 +1,4 @@
-const { test, ln, chmod, cd, exec } = require('shelljs')
-const path = require('path')
-
-const baseUrl = path.resolve()
+const { test, ln, chmod } = require('shelljs')
 
 function installHooks () {
   if (test('-e', '.git/hooks')) {
@@ -12,15 +9,4 @@ function installHooks () {
   }
 }
 
-function setupSSR () {
-  const ssrBase = path.resolve('packages/vue-server-renderer')
-  if (!test('-e', path.join(ssrBase, 'node_modules'))) {
-    cd(ssrBase)
-    exec('npm install')
-    cd(baseUrl)
-  }
-}
-
 installHooks()
-setupSSR()
-
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 789cc0b6071..18b21e77bb6 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -3777,8 +3777,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3788,7 +3788,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
diff --git a/types/test/tsconfig.json b/types/test/tsconfig.json
index 784de825267..15809b5f786 100644
--- a/types/test/tsconfig.json
+++ b/types/test/tsconfig.json
@@ -7,7 +7,11 @@
     ],
     "module": "commonjs",
     "strict": true,
-    "noEmit": true
+    "noEmit": true,
+    "baseUrl": ".",
+    "paths": {
+      "vue": ["../index.d.ts"]
+    }
   },
   "files": [
     "../index.d.ts",

From 604230fe953f864be5dc70bd7d34f64ae43e4f7e Mon Sep 17 00:00:00 2001
From: lucien <330346580@qq.com>
Date: Wed, 25 Oct 2017 12:44:54 +0800
Subject: [PATCH 195/911] fix(keep-alive): higher priority for exclude than
 include (#6905)

---
 src/core/components/keep-alive.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/components/keep-alive.js b/src/core/components/keep-alive.js
index 3f6e7af45ff..eb79b1f8fa6 100644
--- a/src/core/components/keep-alive.js
+++ b/src/core/components/keep-alive.js
@@ -87,8 +87,8 @@ export default {
       // check pattern
       const name: ?string = getComponentName(componentOptions)
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }

From 98ea0a3b48e37719f278c10a8ee5fb94d7d5db4e Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Wed, 25 Oct 2017 12:45:15 +0800
Subject: [PATCH 196/911] fix(types): improve typing for better completion
 (#6886)

---
 types/vue.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/vue.d.ts b/types/vue.d.ts
index 53da4a44350..2b025150bc7 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -61,7 +61,7 @@ export interface Vue {
   $createElement: CreateElement;
 }
 
-export type CombinedVueInstance<Instance extends Vue, Data, Methods, Computed, Props> = Instance & Data & Methods & Computed & Props;
+export type CombinedVueInstance<Instance extends Vue, Data, Methods, Computed, Props> =  Data & Methods & Computed & Props & Instance;
 export type ExtendedVue<Instance extends Vue, Data, Methods, Computed, Props> = VueConstructor<CombinedVueInstance<Instance, Data, Methods, Computed, Props> & Vue>;
 
 export interface VueConstructor<V extends Vue = Vue> {

From ee0e8b5ce1d64120b2b8d6426d783f6f0a683395 Mon Sep 17 00:00:00 2001
From: Huo Chunyang <HcySunYang@outlook.com>
Date: Wed, 25 Oct 2017 12:48:12 +0800
Subject: [PATCH 197/911] refactor: tweak data merge strategy (#6833)

* tweak: The value of this is always undefined

* parentVal and childVal must have a presence, otherwise the strats.data policy function will not be executed
---
 src/core/util/options.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 3be38b8e56b..ad36bb94151 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -89,7 +89,7 @@ export function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       const instanceData = typeof childVal === 'function'
@@ -123,7 +123,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)

From 83ed92608d81349e1cac2e481ed079e51a490b2b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 26 Oct 2017 13:52:36 +0200
Subject: [PATCH 198/911] fix: $set should respect properties on prototype
 chain

fix #6845
---
 src/core/observer/index.js                    |  2 +-
 .../features/global-api/set-delete.spec.js    | 26 +++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 11de2d89f79..86a21f9e4f2 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -196,7 +196,7 @@ export function set (target: Array<any> | Object, key: any, val: any): any {
     target.splice(key, 1, val)
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val
     return val
   }
diff --git a/test/unit/features/global-api/set-delete.spec.js b/test/unit/features/global-api/set-delete.spec.js
index d758422d037..d1c7f3d8709 100644
--- a/test/unit/features/global-api/set-delete.spec.js
+++ b/test/unit/features/global-api/set-delete.spec.js
@@ -80,6 +80,32 @@ describe('Global API: set/delete', () => {
         expect(vm.$el.innerHTML).toBe('<p>D</p><p>B</p><p>C</p>')
       }).then(done)
     })
+
+    // #6845
+    it('should not overwrite properties on prototype chain', () => {
+      class Model {
+        constructor () {
+          this._bar = null
+        }
+        get bar () {
+          return this._bar
+        }
+        set bar (newvalue) {
+          this._bar = newvalue
+        }
+      }
+
+      const vm = new Vue({
+        data: {
+          data: new Model()
+        }
+      })
+
+      Vue.set(vm.data, 'bar', 123)
+      expect(vm.data.bar).toBe(123)
+      expect(vm.data.hasOwnProperty('bar')).toBe(false)
+      expect(vm.data._bar).toBe(123)
+    })
   })
 
   describe('Vue.delete', () => {

From cfd73c2386623341fdbb3ac636c4baf84ea89c2c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 26 Oct 2017 16:01:12 +0200
Subject: [PATCH 199/911] fix: handle encoded tabs and newlines in attributes
 for Chrome a[href] and IE/Edge

fix #6828, fix #6916
---
 flow/compiler.js                                 |  3 ++-
 src/compiler/parser/html-parser.js               | 13 +++++++------
 src/compiler/parser/index.js                     |  1 +
 src/platforms/web/entry-runtime-with-compiler.js |  3 ++-
 src/platforms/web/util/compat.js                 | 16 +++++++++-------
 5 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index 89473789b00..a5ebc5f3862 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -14,7 +14,8 @@ declare type CompilerOptions = {
   preserveWhitespace?: boolean;
   isFromDOM?: boolean;
   shouldDecodeTags?: boolean;
-  shouldDecodeNewlines?: boolean;
+  shouldDecodeNewlines?:  boolean;
+  shouldDecodeNewlinesForHref?: boolean;
 
   // for ssr optimization compiler
   scopeId?: string;
diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index f9f78d5ccf8..86955e0e7ab 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -39,10 +39,11 @@ const decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 }
 const encodedAttr = /&(?:lt|gt|quot|amp);/g
-const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g
+const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g
 
 // #5992
 const isIgnoreNewlineTag = makeMap('pre,textarea', true)
@@ -233,12 +234,12 @@ export function parseHTML (html, options) {
         if (args[5] === '') { delete args[5] }
       }
       const value = args[3] || args[4] || args[5] || ''
+      const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       }
     }
 
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index ceedce70aef..cba12d1cd47 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -107,6 +107,7 @@ export function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start (tag, attrs, unary) {
       // check namespace.
diff --git a/src/platforms/web/entry-runtime-with-compiler.js b/src/platforms/web/entry-runtime-with-compiler.js
index 5ca67b6e8e2..1ebc102df71 100644
--- a/src/platforms/web/entry-runtime-with-compiler.js
+++ b/src/platforms/web/entry-runtime-with-compiler.js
@@ -6,8 +6,8 @@ import { mark, measure } from 'core/util/perf'
 
 import Vue from './runtime/index'
 import { query } from './util/index'
-import { shouldDecodeNewlines } from './util/compat'
 import { compileToFunctions } from './compiler/index'
+import { shouldDecodeNewlines, shouldDecodeNewlinesForHref } from './util/compat'
 
 const idToTemplate = cached(id => {
   const el = query(id)
@@ -64,6 +64,7 @@ Vue.prototype.$mount = function (
 
       const { render, staticRenderFns } = compileToFunctions(template, {
         shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
         comments: options.comments
       }, this)
diff --git a/src/platforms/web/util/compat.js b/src/platforms/web/util/compat.js
index 144d68afb6d..d95759cce31 100644
--- a/src/platforms/web/util/compat.js
+++ b/src/platforms/web/util/compat.js
@@ -3,12 +3,14 @@
 import { inBrowser } from 'core/util/index'
 
 // check whether current browser encodes a char inside attribute values
-function shouldDecode (content: string, encoded: string): boolean {
-  const div = document.createElement('div')
-  div.innerHTML = `<div a="${content}"/>`
-  return div.innerHTML.indexOf(encoded) > 0
+let div
+function getShouldDecode (href: boolean): boolean {
+  div = div || document.createElement('div')
+  div.innerHTML = href ? `<a href="\n"/>` : `<div a="\n"/>`
+  return div.innerHTML.indexOf('&#10;') > 0
 }
 
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-export const shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+export const shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false
+// #6828: chrome encodes content in a[href]
+export const shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false

From 1cf02efda206185cb72bbaafb00037fa6269e3f3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 26 Oct 2017 18:00:19 +0200
Subject: [PATCH 200/911] fix: also clone component slot children during
 deepClone

fix #6891, fix #6915
---
 src/core/vdom/patch.js                              |  7 +++++--
 src/core/vdom/vnode.js                              | 12 +++++++++---
 test/unit/features/component/component-slot.spec.js | 12 ++++++++----
 3 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index f06a1feb079..1a764f20cf8 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -673,9 +673,12 @@ export function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode)
         }
+
         // replacing existing element
         const oldElm = oldVnode.elm
         const parentElm = nodeOps.parentNode(oldElm)
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -686,9 +689,8 @@ export function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         )
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           let ancestor = vnode.parent
           const patchable = isPatchable(vnode)
           while (ancestor) {
@@ -717,6 +719,7 @@ export function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm)) {
           removeVnodes(parentElm, [oldVnode], 0, 0)
         } else if (isDef(oldVnode.tag)) {
diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index a34330de55b..33b5612fe6e 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -86,6 +86,7 @@ export function createTextVNode (val: string | number) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
+  const componentOptions = vnode.componentOptions
   const cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -93,7 +94,7 @@ export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   )
   cloned.ns = vnode.ns
@@ -101,8 +102,13 @@ export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
   cloned.key = vnode.key
   cloned.isComment = vnode.isComment
   cloned.isCloned = true
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children)
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true)
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true)
+    }
   }
   return cloned
 }
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 66e70dac17b..4ceadfc2153 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -686,6 +686,7 @@ describe('Component slot', () => {
     expect(vm.$el.innerHTML).toBe('<div>default<span>foo</span></div>')
   })
 
+  // #6372, #6915
   it('should handle nested components in slots properly', done => {
     const TestComponent = {
       template: `
@@ -706,7 +707,10 @@ describe('Component slot', () => {
           <test-component ref="test">
             <div>
               <foo/>
-            </div><bar/>
+            </div>
+            <bar>
+              <foo/>
+            </bar>
           </test-component>
         </div>
       `,
@@ -716,16 +720,16 @@ describe('Component slot', () => {
           template: `<div>foo</div>`
         },
         bar: {
-          template: `<div>bar</div>`
+          template: `<div>bar<slot/></div>`
         }
       }
     }).$mount()
 
-    expect(vm.$el.innerHTML).toBe(`<b><div><div>foo</div></div><div>bar</div></b>`)
+    expect(vm.$el.innerHTML).toBe(`<b><div><div>foo</div></div> <div>bar<div>foo</div></div></b>`)
 
     vm.$refs.test.toggleEl = false
     waitForUpdate(() => {
-      expect(vm.$el.innerHTML).toBe(`<i><div><div>foo</div></div><div>bar</div></i>`)
+      expect(vm.$el.innerHTML).toBe(`<i><div><div>foo</div></div> <div>bar<div>foo</div></div></i>`)
     }).then(done)
   })
 

From 4ad9a56b229b156e633f3d575cd0e99ba5e474d9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 26 Oct 2017 18:43:57 +0200
Subject: [PATCH 201/911] fix(ssr): should not optimize root if conditions

fix #6907
---
 src/server/optimizing-compiler/optimizer.js |  2 +-
 test/ssr/ssr-string.spec.js                 | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/server/optimizing-compiler/optimizer.js b/src/server/optimizing-compiler/optimizer.js
index 82ac880ef56..1a671803caa 100644
--- a/src/server/optimizing-compiler/optimizer.js
+++ b/src/server/optimizing-compiler/optimizer.js
@@ -55,7 +55,7 @@ function walk (node: ASTNode, isRoot?: boolean) {
     if (node.ifConditions) {
       for (let i = 1, l = node.ifConditions.length; i < l; i++) {
         const block = node.ifConditions[i].block
-        walk(block)
+        walk(block, isRoot)
         check(block)
       }
     }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 7e07ad112fe..e52d34ffe5d 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -989,6 +989,17 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  // #6907
+  it('should not optimize root if conditions', done => {
+    renderVmWithOptions({
+      data: { foo: 123 },
+      template: `<input :type="'text'" v-model="foo">`
+    }, res => {
+      expect(res).toBe(`<input type="text" data-server-rendered="true" value="123">`)
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From c3553196b8b15a71f982bd5e04c61be52e87c828 Mon Sep 17 00:00:00 2001
From: fenduru <fenduru@users.noreply.github.com>
Date: Thu, 26 Oct 2017 21:08:10 -0400
Subject: [PATCH 202/911] fix: clean up target variables to avoid memory leaks
 (#6932)

fix #6931
---
 src/core/instance/events.js                  | 3 ++-
 src/platforms/web/runtime/modules/events.js  | 3 ++-
 src/platforms/weex/runtime/modules/events.js | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index 7908041a83b..469ef970b15 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -19,7 +19,7 @@ export function initEvents (vm: Component) {
   }
 }
 
-let target: Component
+let target: any
 
 function add (event, fn, once) {
   if (once) {
@@ -40,6 +40,7 @@ export function updateComponentListeners (
 ) {
   target = vm
   updateListeners(listeners, oldListeners || {}, add, remove, vm)
+  target = undefined
 }
 
 export function eventsMixin (Vue: Class<Component>) {
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 103dfe0ba5e..1e71b667286 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -26,7 +26,7 @@ function normalizeEvents (on) {
   }
 }
 
-let target: HTMLElement
+let target: any
 
 function createOnceHandler (handler, event, capture) {
   const _target = target // save current target element in closure
@@ -78,6 +78,7 @@ function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   target = vnode.elm
   normalizeEvents(on)
   updateListeners(on, oldOn, add, remove, vnode.context)
+  target = undefined
 }
 
 export default {
diff --git a/src/platforms/weex/runtime/modules/events.js b/src/platforms/weex/runtime/modules/events.js
index 824f08e6154..11b7edcfec8 100755
--- a/src/platforms/weex/runtime/modules/events.js
+++ b/src/platforms/weex/runtime/modules/events.js
@@ -46,6 +46,7 @@ function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   const oldOn = oldVnode.data.on || {}
   target = vnode.elm
   updateListeners(on, oldOn, add, remove, vnode.context)
+  target = undefined
 }
 
 export default {

From d1d8b58ab6a0b0698a86aff716c0fd94b7cdd654 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 28 Oct 2017 14:26:40 +0200
Subject: [PATCH 203/911] chore: update sponsors and backers

---
 BACKERS.md | 44 +++++++++++++++++++++++++++++++-------------
 README.md  | 22 ++++++++++------------
 2 files changed, 41 insertions(+), 25 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 85d7e3370d1..f11656a8e31 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,12 +21,16 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
   <a href="https://xiaozhuanlan.com">
     <img width="200px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
   </a>
+  <br><br>
+  <a href="http://tooltwist.com" target="_blank">
+    <img width="280px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+  </a>
 </p>
 
 <h2 align="center">Platinum via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a>
+<!-- <a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a> -->
 
 <h2 align="center">Gold via Patreon</h2>
 
@@ -94,11 +98,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.v2ex.com/t/379389" target="_blank">
-          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.xfive.co/" target="_blank">
           <img width="100px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
@@ -114,13 +113,9 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
-        <a href="http://tooltwist.com/" target="_blank">
-          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist
-          .png">
+        <a href="https://themeforest.net/item/clear-bootstrap-vuejs-admin-template/19339739?ref=jyostna&utm_source=vuejs&utm_campaign=vuejs_patreon&clickthrough_id=1113830525&redirect_back=true" target="_blank">
+          <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejsadmin.png">
         </a>
       </td>
     </tr>
@@ -291,6 +286,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
+- Harri J Salomaa
 
 <h2 align="center">Backers via Patreon</h2>
 
@@ -465,6 +461,28 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Keith Mancuso
 - Alexander Karelas
 - Matias Verdier
+- Jamie McElwain
+- Travis Gertz
+- Ale Mohamad
+- Jonas Galvez
+- William Correa
+- Raphael Belvederese
+- Mickaël Andrieu
+- Guilherme S L de Souza
+- Rob Yedlin
+- Daniel Waghorn
+- Eric Githinji
+- Vivekanandhan Natarajan
+- Chih-Hsuan Fan
+- Jordan Oroshiba
+- Brian Jorden
+- Cliff Hess
+- Joe Gregory
+- Johnny Eshan
+- Alexander Karelas
+- Kamil Ocean
+- Orney Enrique Martinez Said
+- Tom Striker
 
 <h2 align="center">Backers via OpenCollective</h2>
 
diff --git a/README.md b/README.md
index f3c43fbef4b..4aaac817d95 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,10 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
   <a href="https://xiaozhuanlan.com">
     <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
   </a>
+  <br><br>
+  <a href="http://tooltwist.com" target="_blank">
+    <img width="220px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+  </a>
 </p>
 
 <h4 align="center">Gold</h4>
@@ -100,18 +104,13 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.v2ex.com/t/379389" target="_blank">
-          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/v2exer.png">
+        <a href="https://www.xfive.co/" target="_blank">
+          <img width="80px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
         </a>
       </td>
     </tr>
     <tr></tr>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://www.xfive.co/" target="_blank">
-          <img width="80px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="http://www.frontenddevelopermeetups.com/" target="_blank">
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-meetups.png">
@@ -123,8 +122,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="http://tooltwist.com" target="_blank">
-          <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+        <a href="https://themeforest.net/item/clear-bootstrap-vuejs-admin-template/19339739?ref=jyostna&utm_source=vuejs&utm_campaign=vuejs_patreon&clickthrough_id=1113830525&redirect_back=true" target="_blank">
+          <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejsadmin.png">
         </a>
       </td>
     </tr>
@@ -135,13 +134,12 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h4 align="center">Platinum</h4>
 
-<a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a>
+<!-- <a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a> -->
 
 <h4 align="center">Gold</h4>
 
 <a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/2/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/goldsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/3/avatar.svg"></a>

From e9c8e12397f1e89382f91b1557cc7f7d4139e651 Mon Sep 17 00:00:00 2001
From: Xavier Damman <xdamman@gmail.com>
Date: Mon, 30 Oct 2017 23:37:28 +0900
Subject: [PATCH 204/911] chore: fix sponsors from open collective (#6958)

* Fix sponsors from open collective

Also added Silver and Bronze sponsors.
Fixes https://github.com/opencollective/opencollective/issues/579

* Update README.md

only gold and above are listed here.
---
 README.md | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 4aaac817d95..364360d984f 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@
 Vue.js is an MIT-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
 
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou).
-- [Become a backer or sponsor on OpenCollective](https://opencollective.com/vuejs).
+- [Become a backer or sponsor on Open Collective](https://opencollective.com/vuejs).
 
 #### What's the difference between Patreon and OpenCollective?
 
@@ -130,20 +130,20 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
   </tbody>
 </table>
 
-<h3 align="center">Sponsors via OpenCollective</h3>
+<h3 align="center">Sponsors via <a href="https://opencollective.com/vuejs">Open Collective</a></h3>
 
 <h4 align="center">Platinum</h4>
 
-<!-- <a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a> -->
+<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/1/avatar.svg"></a> -->
 
 <h4 align="center">Gold</h4>
 
-<a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/4
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/4
   /avatar.svg"></a>
 
 ---

From 6f6e5c88af95d4b50ba70e4d983e1add7f8fd254 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 30 Oct 2017 10:39:02 -0400
Subject: [PATCH 205/911] chore: remove leftover comment tag

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 364360d984f..9c32ed39d29 100644
--- a/README.md
+++ b/README.md
@@ -135,7 +135,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <h4 align="center">Platinum</h4>
 
 <a href="https://opencollective.com/vuejs/tiers/platinumsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/1/avatar.svg"></a> -->
+<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/1/avatar.svg"></a>
 
 <h4 align="center">Gold</h4>
 

From 8a784d8d2333f0a05569f6c11c5a0fb0ab3a164e Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 30 Oct 2017 19:28:54 -0500
Subject: [PATCH 206/911] fix(weex): stop trim css units in richtext component
 (#6927)

+ Remove the `trimCSSUnit` method.
+ Modify the test cases to support css units.
+ Add flow type annotations.
---
 .../weex/runtime/components/richtext.js       | 37 ++++++-------------
 test/weex/runtime/components/richtext.spec.js | 10 ++---
 2 files changed, 17 insertions(+), 30 deletions(-)

diff --git a/src/platforms/weex/runtime/components/richtext.js b/src/platforms/weex/runtime/components/richtext.js
index dc2b0d57d58..a9164c7a698 100644
--- a/src/platforms/weex/runtime/components/richtext.js
+++ b/src/platforms/weex/runtime/components/richtext.js
@@ -1,32 +1,25 @@
-function getVNodeType (vnode) {
+/* @flow */
+
+function getVNodeType (vnode: VNode): string {
   if (!vnode.tag) {
     return ''
   }
   return vnode.tag.replace(/vue\-component\-(\d+\-)?/, '')
 }
 
-function isSimpleSpan (vnode) {
-  return vnode.children && vnode.children.length === 1 && !vnode.children[0].tag
+function isSimpleSpan (vnode: VNode): boolean {
+  return vnode.children &&
+    vnode.children.length === 1 &&
+    !vnode.children[0].tag
 }
 
-const cssLengthRE = /^([+-]?[0-9]+(\.[0-9]+)?)(px|em|ex|%|in|cm|mm|pt|pc)$/i
-function trimCSSUnit (prop) {
-  const res = String(prop).match(cssLengthRE)
-  if (res) {
-    return Number(res[1])
-  }
-  return prop
-}
-
-function parseStyle (vnode) {
+function parseStyle (vnode: VNode): Object | void {
   if (!vnode || !vnode.data) {
     return
   }
-
   const { staticStyle, staticClass } = vnode.data
   if (vnode.data.style || vnode.data.class || staticStyle || staticClass) {
     const styles = Object.assign({}, staticStyle, vnode.data.style)
-
     const cssMap = vnode.context.$options.style || {}
     const classList = [].concat(staticClass, vnode.data.class)
     classList.forEach(name => {
@@ -34,22 +27,18 @@ function parseStyle (vnode) {
         Object.assign(styles, cssMap[name])
       }
     })
-
-    for (const key in styles) {
-      styles[key] = trimCSSUnit(styles[key])
-    }
     return styles
   }
 }
 
-function convertVNodeChildren (children) {
+function convertVNodeChildren (children: Array<VNode>): Array<VNode> | void {
   if (!children.length) {
     return
   }
 
   return children.map(vnode => {
-    const type = getVNodeType(vnode)
-    const props = { type }
+    const type: string = getVNodeType(vnode)
+    const props: Object = { type }
 
     // convert raw text node
     if (!type) {
@@ -65,7 +54,6 @@ function convertVNodeChildren (children) {
           props.events = vnode.data.on
         }
       }
-
       if (type === 'span' && isSimpleSpan(vnode)) {
         props.attr = props.attr || {}
         props.attr.value = vnode.children[0].text.trim()
@@ -83,8 +71,7 @@ function convertVNodeChildren (children) {
 
 export default {
   name: 'richtext',
-  // abstract: true,
-  render (h) {
+  render (h: Function) {
     return h('weex:richtext', {
       on: this._events,
       attrs: {
diff --git a/test/weex/runtime/components/richtext.spec.js b/test/weex/runtime/components/richtext.spec.js
index e6190b7f655..f1c21caf9d1 100644
--- a/test/weex/runtime/components/richtext.spec.js
+++ b/test/weex/runtime/components/richtext.spec.js
@@ -199,7 +199,7 @@ describe('richtext component', () => {
         attr: {
           value: [{
             type: 'image',
-            style: { width: 150, height: 150 },
+            style: { width: '150px', height: '150px' },
             attr: { src: 'path/to/profile.png' }
           }]
         }
@@ -293,11 +293,11 @@ describe('richtext component', () => {
         attr: {
           value: [{
             type: 'span',
-            style: { fontSize: 16, color: '#FF6600' },
+            style: { fontSize: '16px', color: '#FF6600' },
             attr: { value: 'ABCD' }
           }, {
             type: 'image',
-            style: { width: 33.33, height: 66.67 },
+            style: { width: '33.33px', height: '66.67px' },
             attr: { src: 'path/to/A.png' }
           }]
         }
@@ -471,7 +471,7 @@ describe('richtext component', () => {
         attr: {
           value: [{
             type: 'span',
-            style: { fontSize: 32, color: '#F6F660' },
+            style: { fontSize: '32px', color: '#F6F660' },
             attr: { value: 'ABCD' }
           }, {
             type: 'span',
@@ -543,7 +543,7 @@ describe('richtext component', () => {
         attr: {
           value: [{
             type: 'span',
-            style: { fontSize: 24, color: '#ABCDEF' },
+            style: { fontSize: '24px', color: '#ABCDEF' },
             attr: { value: 'ABCD' }
           }, {
             type: 'span',

From 232dd85f853d69fe3648a92be0d56f7359bc9210 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 30 Oct 2017 19:29:16 -0500
Subject: [PATCH 207/911] test(weex): support testing the virtual dom generated
 form *.vue files (#6944)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Compile the *.vue file into js code, then run it in Weex context, and
compare the generate virtual dom.
It’s a black-box testing for `weex-template-compiler`,
`weex-styler`,`weex-vue-framework` and `weex-js-runtime`.
---
 package.json                               |  3 +-
 test/weex/cases/cases.spec.js              | 72 ++++++++++++++++++++++
 test/weex/cases/event/click.after.vdom.js  | 10 +++
 test/weex/cases/event/click.before.vdom.js | 10 +++
 test/weex/cases/event/click.vue            | 20 ++++++
 test/weex/cases/render/sample.vdom.js      | 17 +++++
 test/weex/cases/render/sample.vue          | 23 +++++++
 test/weex/helpers/index.js                 | 71 ++++++++++++++++++++-
 8 files changed, 223 insertions(+), 3 deletions(-)
 create mode 100644 test/weex/cases/cases.spec.js
 create mode 100644 test/weex/cases/event/click.after.vdom.js
 create mode 100644 test/weex/cases/event/click.before.vdom.js
 create mode 100644 test/weex/cases/event/click.vue
 create mode 100644 test/weex/cases/render/sample.vdom.js
 create mode 100644 test/weex/cases/render/sample.vue

diff --git a/package.json b/package.json
index 09af3ed7f70..085e2890989 100644
--- a/package.json
+++ b/package.json
@@ -125,7 +125,8 @@
     "typescript": "^2.5.2",
     "uglify-js": "^3.0.15",
     "webpack": "^2.6.1",
-    "weex-js-runtime": "^0.23.0"
+    "weex-js-runtime": "^0.23.0",
+    "weex-styler": "^0.3.0"
   },
   "config": {
     "commitizen": {
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
new file mode 100644
index 00000000000..291600dfb24
--- /dev/null
+++ b/test/weex/cases/cases.spec.js
@@ -0,0 +1,72 @@
+import fs from 'fs'
+import path from 'path'
+import {
+  compileVue,
+  createInstance,
+  getRoot,
+  getEvents,
+  fireEvent
+} from '../helpers'
+
+function readFile (filename) {
+  return fs.readFileSync(path.resolve(__dirname, filename), 'utf8')
+}
+
+function readObject (filename) {
+  return (new Function(`return ${readFile(filename)}`))()
+}
+
+// Create one-off render test case
+function createRenderTestCase (name) {
+  const source = readFile(`${name}.vue`)
+  const target = readObject(`${name}.vdom.js`)
+  return done => {
+    compileVue(source).then(code => {
+      const id = String(Date.now() * Math.random())
+      const instance = createInstance(id, code)
+      setTimeout(() => {
+        expect(getRoot(instance)).toEqual(target)
+        done()
+      }, 50)
+    }).catch(err => {
+      expect(err).toBe(null)
+      done()
+    })
+  }
+}
+
+// Create event test case, will trigger the first bind event
+function createEventTestCase (name) {
+  const source = readFile(`${name}.vue`)
+  const before = readObject(`${name}.before.vdom.js`)
+  const after = readObject(`${name}.after.vdom.js`)
+  return done => {
+    compileVue(source).then(code => {
+      const id = String(Date.now() * Math.random())
+      const instance = createInstance(id, code)
+      setTimeout(() => {
+        expect(getRoot(instance)).toEqual(before)
+        const event = getEvents(instance)[0]
+        fireEvent(instance, event.ref, event.type, {})
+        setTimeout(() => {
+          expect(getRoot(instance)).toEqual(after)
+          done()
+        }, 50)
+      }, 50)
+    }).catch(err => {
+      expect(err).toBe(null)
+      done()
+    })
+  }
+}
+
+describe('Usage', () => {
+  describe('render', () => {
+    it('sample', createRenderTestCase('render/sample'))
+  })
+
+  describe('event', () => {
+    it('click', createEventTestCase('event/click'))
+  })
+})
+
diff --git a/test/weex/cases/event/click.after.vdom.js b/test/weex/cases/event/click.after.vdom.js
new file mode 100644
index 00000000000..eab1a36e7a3
--- /dev/null
+++ b/test/weex/cases/event/click.after.vdom.js
@@ -0,0 +1,10 @@
+({
+  type: 'div',
+  event: ['click'],
+  children: [{
+    type: 'text',
+    attr: {
+      value: '43'
+    }
+  }]
+})
diff --git a/test/weex/cases/event/click.before.vdom.js b/test/weex/cases/event/click.before.vdom.js
new file mode 100644
index 00000000000..de278b3a100
--- /dev/null
+++ b/test/weex/cases/event/click.before.vdom.js
@@ -0,0 +1,10 @@
+({
+  type: 'div',
+  event: ['click'],
+  children: [{
+    type: 'text',
+    attr: {
+      value: '42'
+    }
+  }]
+})
diff --git a/test/weex/cases/event/click.vue b/test/weex/cases/event/click.vue
new file mode 100644
index 00000000000..508782c59e7
--- /dev/null
+++ b/test/weex/cases/event/click.vue
@@ -0,0 +1,20 @@
+<template>
+  <div @click="inc">
+    <text>{{count}}</text>
+  </div>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        count: 42
+      }
+    },
+    methods: {
+      inc () {
+        this.count++
+      }
+    }
+  }
+</script>
diff --git a/test/weex/cases/render/sample.vdom.js b/test/weex/cases/render/sample.vdom.js
new file mode 100644
index 00000000000..6e213a506d9
--- /dev/null
+++ b/test/weex/cases/render/sample.vdom.js
@@ -0,0 +1,17 @@
+({
+  type: 'div',
+  style: {
+    justifyContent: 'center'
+  },
+  children: [{
+    type: 'text',
+    attr: {
+      value: 'Yo'
+    },
+    style: {
+      color: '#41B883',
+      fontSize: '233px',
+      textAlign: 'center'
+    }
+  }]
+})
diff --git a/test/weex/cases/render/sample.vue b/test/weex/cases/render/sample.vue
new file mode 100644
index 00000000000..0251b3d6fba
--- /dev/null
+++ b/test/weex/cases/render/sample.vue
@@ -0,0 +1,23 @@
+<template>
+  <div style="justify-content:center">
+    <text class="freestyle">{{string}}</text>
+  </div>
+</template>
+
+<style scoped>
+  .freestyle {
+    color: #41B883;
+    font-size: 233px;
+    text-align: center;
+  }
+</style>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        string: 'Yo'
+      }
+    }
+  }
+</script>
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index ca4b3436b60..653ded34c16 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -1,6 +1,11 @@
 import * as Vue from '../../../packages/weex-vue-framework'
 import { compile } from '../../../packages/weex-template-compiler'
 import WeexRuntime from 'weex-js-runtime'
+import styler from 'weex-styler'
+
+const styleRE = /<\s*style\s*\w*>([^(<\/)]*)<\/\s*style\s*>/g
+const scriptRE = /<\s*script.*>([^]*)<\/\s*script\s*>/
+const templateRE = /<\s*template\s*>([^]*)<\/\s*template\s*>/
 
 console.debug = () => {}
 
@@ -10,6 +15,10 @@ export function strToRegExp (str) {
   return new RegExp(str.replace(matchOperatorsRe, '\\$&'))
 }
 
+function parseStatic (fns) {
+  return '[' + fns.map(fn => `function () { ${fn} }`).join(',') + ']'
+}
+
 export function compileAndStringify (template) {
   const { render, staticRenderFns } = compile(template)
   return {
@@ -18,8 +27,48 @@ export function compileAndStringify (template) {
   }
 }
 
-function parseStatic (fns) {
-  return '[' + fns.map(fn => `function () { ${fn} }`).join(',') + ']'
+/**
+ * Compile *.vue file into js code
+ * @param {string} source raw text of *.vue file
+ * @param {string} componentName whether compile to a component
+ */
+export function compileVue (source, componentName) {
+  return new Promise((resolve, reject) => {
+    if (!templateRE.test(source)) {
+      return reject('No Template!')
+    }
+    const scriptMatch = scriptRE.exec(source)
+    const script = scriptMatch ? scriptMatch[1] : ''
+    const { render, staticRenderFns } = compile(templateRE.exec(source)[1])
+
+    const generateCode = styles => (`
+      var test_case = Object.assign({
+        style: ${JSON.stringify(styles)},
+        render: function () { ${render} },
+        staticRenderFns: ${parseStatic(staticRenderFns)},
+      }, (function(){
+        var module = { exports: {} };
+        ${script};
+        return module.exports;
+      })());
+    ` + (componentName
+        ? `Vue.component('${componentName}', test_case);\n`
+        : `test_case.el = 'body';new Vue(test_case);`)
+    )
+
+    let cssText = ''
+    let styleMatch = null
+    while ((styleMatch = styleRE.exec(source))) {
+      cssText += `\n${styleMatch[1]}\n`
+    }
+    styler.parse(cssText, (error, result) => {
+      if (error) {
+        return reject(error)
+      }
+      resolve(generateCode(result.jsonStyle))
+    })
+    resolve(generateCode({}))
+  })
 }
 
 function isObject (object) {
@@ -47,6 +96,24 @@ export function getRoot (instance) {
   return omitUseless(instance.document.body.toJSON())
 }
 
+// Get all binding events in the instance
+export function getEvents (instance) {
+  const events = []
+  const recordEvent = node => {
+    if (!node) { return }
+    if (Array.isArray(node.event)) {
+      node.event.forEach(type => {
+        events.push({ ref: node.ref, type })
+      })
+    }
+    if (Array.isArray(node.children)) {
+      node.children.forEach(recordEvent)
+    }
+  }
+  recordEvent(instance.document.body.toJSON())
+  return events
+}
+
 export function fireEvent (instance, ref, type, event = {}) {
   const el = instance.document.getRef(ref)
   if (el) {

From 350f5788d39741d690d49aea91c084f2db764992 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 1 Nov 2017 11:23:51 -0400
Subject: [PATCH 208/911] chore: update sponsor link

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9c32ed39d29..083baa8daae 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://themeforest.net/item/clear-bootstrap-vuejs-admin-template/19339739?ref=jyostna&utm_source=vuejs&utm_campaign=vuejs_patreon&clickthrough_id=1113830525&redirect_back=true" target="_blank">
+        <a href="https://themeforest.net/item/clear-bootstrap-vuejs-admin-template/19339739?ref=jyostna&utm_source=vuejs.org&utm_campaign=vuejs_patreon" target="_blank">
           <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejsadmin.png">
         </a>
       </td>

From f2e00f756fb540fb09ce3414289c652ce172d85c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 2 Nov 2017 16:55:05 -0400
Subject: [PATCH 209/911] fix: special case for static muted attribute in
 firefox

fix #6887
---
 src/compiler/parser/index.js              | 7 +++++++
 test/ssr/ssr-string.spec.js               | 9 +++++++++
 test/unit/modules/compiler/parser.spec.js | 9 +++++++++
 3 files changed, 25 insertions(+)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index cba12d1cd47..c4554dbbecc 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -556,6 +556,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value))
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name) &&
+          name === 'muted') {
+        addProp(el, name, 'true')
+      }
     }
   }
 }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index e52d34ffe5d..60c801fab01 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1000,6 +1000,15 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('render muted properly', done => {
+    renderVmWithOptions({
+      template: '<video muted></video>'
+    }, result => {
+      expect(result).toContain('<video muted="muted" data-server-rendered="true"></video>')
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index c2bb6c25129..c06ac5ba2f3 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -395,6 +395,15 @@ describe('parser', () => {
     expect(ast.props[0].value).toBe('msg')
   })
 
+  // #6887
+  it('special case static attribute that must be props', () => {
+    const ast = parse('<video muted></video>', baseOptions)
+    expect(ast.attrs[0].name).toBe('muted')
+    expect(ast.attrs[0].value).toBe('""')
+    expect(ast.props[0].name).toBe('muted')
+    expect(ast.props[0].value).toBe('true')
+  })
+
   it('attribute with v-on', () => {
     const ast = parse('<input type="text" name="field1" :value="msg" @input="onInput">', baseOptions)
     expect(ast.events.input.value).toBe('onInput')

From c24f3e4208cd045832002ee9916559f6fe0dc2b5 Mon Sep 17 00:00:00 2001
From: Mads K <madskonradsen@users.noreply.github.com>
Date: Thu, 2 Nov 2017 21:58:21 +0100
Subject: [PATCH 210/911] fix(events): properly $off array of events (#6949)

---
 src/core/instance/events.js                        | 2 +-
 test/unit/features/instance/methods-events.spec.js | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index 469ef970b15..587799969c2 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -92,7 +92,7 @@ export function eventsMixin (Vue: Class<Component>) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null
       return vm
     }
diff --git a/test/unit/features/instance/methods-events.spec.js b/test/unit/features/instance/methods-events.spec.js
index be150076992..88834577f26 100644
--- a/test/unit/features/instance/methods-events.spec.js
+++ b/test/unit/features/instance/methods-events.spec.js
@@ -41,6 +41,13 @@ describe('Instance methods events', () => {
     expect(spy.calls.count()).toBe(1)
   })
 
+  it('$off multi event without callback', () => {
+    vm.$on(['test1', 'test2'], spy)
+    vm.$off(['test1', 'test2'])
+    vm.$emit('test1')
+    expect(spy).not.toHaveBeenCalled()
+  })
+
   it('$once', () => {
     vm.$once('test', spy)
     vm.$emit('test', 1, 2, 3)

From bdcc05a0d40eaef0e0f76b9d975a04fe0e97f5e0 Mon Sep 17 00:00:00 2001
From: Alex Paduraru <axelut@me.com>
Date: Thu, 2 Nov 2017 23:05:30 +0200
Subject: [PATCH 211/911] chore: fix creative Tim missing from the sponsors
 list (#6939)

---
 README.md | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 083baa8daae..392467b06ee 100644
--- a/README.md
+++ b/README.md
@@ -143,8 +143,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <a href="https://opencollective.com/vuejs/tiers/goldsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/1/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/tiers/goldsponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/2/avatar.svg"></a>
 <a href="https://opencollective.com/vuejs/tiers/goldsponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/4
-  /avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/4/avatar.svg"></a>
 
 ---
 

From 0c703e34d1a2083d9f162fcf0885deefb803182e Mon Sep 17 00:00:00 2001
From: Soo Jae Hwang <misoguy1985@gmail.com>
Date: Fri, 3 Nov 2017 06:09:29 +0900
Subject: [PATCH 212/911] fix(v-model): v-if / v-else not working with :type +
 v-model (#6955)

fix #6918
---
 src/platforms/web/compiler/modules/model.js   |  9 ++++
 .../features/directives/model-dynamic.spec.js | 42 +++++++++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/src/platforms/web/compiler/modules/model.js b/src/platforms/web/compiler/modules/model.js
index 61657d1fa43..5e882d72545 100644
--- a/src/platforms/web/compiler/modules/model.js
+++ b/src/platforms/web/compiler/modules/model.js
@@ -29,6 +29,8 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
       const typeBinding: any = getBindingAttr(el, 'type')
       const ifCondition = getAndRemoveAttr(el, 'v-if', true)
       const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``
+      const hasElse = getAndRemoveAttr(el, 'v-else', true) != null
+      const elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true)
       // 1. checkbox
       const branch0 = cloneASTElement(el)
       // process for on the main node
@@ -59,6 +61,13 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
         exp: ifCondition,
         block: branch2
       })
+
+      if (hasElse) {
+        branch0.else = true
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition
+      }
+
       return branch0
     }
   }
diff --git a/test/unit/features/directives/model-dynamic.spec.js b/test/unit/features/directives/model-dynamic.spec.js
index eb193f19bdf..a5c18fe82b2 100644
--- a/test/unit/features/directives/model-dynamic.spec.js
+++ b/test/unit/features/directives/model-dynamic.spec.js
@@ -40,6 +40,48 @@ describe('Directive v-model dynamic input type', () => {
     assertInputWorks(vm, chain).then(done)
   })
 
+  it('with v-else', done => {
+    const data = {
+      ok: true,
+      type: null,
+      test: 'b'
+    }
+    const vm = new Vue({
+      data,
+      template: `<div v-if="ok">haha</div><input v-else :type="type" v-model="test">`
+    }).$mount()
+    document.body.appendChild(vm.$el)
+    expect(vm.$el.textContent).toBe('haha')
+
+    vm.ok = false
+    assertInputWorks(vm).then(done)
+  })
+
+  it('with v-else-if', done => {
+    const vm = new Vue({
+      data: {
+        foo: true,
+        bar: false,
+        type: null,
+        test: 'b'
+      },
+      template: `<div v-if="foo">text</div><input v-else-if="bar" :type="type" v-model="test">`
+    }).$mount()
+    document.body.appendChild(vm.$el)
+
+    const chain = waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe('text')
+    }).then(() => {
+      vm.foo = false
+    }).then(() => {
+      expect(vm._vnode.isComment).toBe(true)
+    }).then(() => {
+      vm.bar = true
+    })
+
+    assertInputWorks(vm, chain).then(done)
+  })
+
   it('with v-for', done => {
     const vm = new Vue({
       data: {

From 58a39dfa0e8c4a51959e9a84369dad8fbca0e6ac Mon Sep 17 00:00:00 2001
From: laoxiong <gebilaoxiong@gmail.com>
Date: Thu, 2 Nov 2017 21:03:19 -0500
Subject: [PATCH 213/911] fix(model): correctly set select v-model initial
 value on patch (#6910)

---
 src/platforms/web/runtime/directives/model.js | 23 ++++++++--
 .../features/directives/model-select.spec.js  | 42 +++++++++++++++++++
 2 files changed, 62 insertions(+), 3 deletions(-)

diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index 89239816882..f707b036ad0 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -6,6 +6,8 @@
 import { isTextInputType } from 'web/util/element'
 import { looseEqual, looseIndexOf } from 'shared/util'
 import { warn, isAndroid, isIE9, isIE, isEdge } from 'core/util/index'
+import { mergeVNodeHook } from 'core/vdom/helpers/index'
+import { emptyNode } from 'core/vdom/patch'
 
 /* istanbul ignore if */
 if (isIE9) {
@@ -18,10 +20,17 @@ if (isIE9) {
   })
 }
 
-export default {
-  inserted (el, binding, vnode) {
+const directive = {
+  inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context)
+      // #6903
+      if (oldVnode !== emptyNode && !hasDirective(oldVnode, 'model')) {
+        mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', () => {
+          directive.componentUpdated(el, binding, vnode)
+        })
+      } else {
+        setSelected(el, binding, vnode.context)
+      }
       el._vOptions = [].map.call(el.options, getValue)
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers
@@ -136,3 +145,11 @@ function trigger (el, type) {
   e.initEvent(type, true, true)
   el.dispatchEvent(e)
 }
+
+function hasDirective (vnode, dirname) {
+  return vnode.data &&
+    vnode.data.directives &&
+    vnode.data.directives.some(dir => dir.name === dirname)
+}
+
+export default directive
diff --git a/test/unit/features/directives/model-select.spec.js b/test/unit/features/directives/model-select.spec.js
index 7c265d25f79..c961224972b 100644
--- a/test/unit/features/directives/model-select.spec.js
+++ b/test/unit/features/directives/model-select.spec.js
@@ -546,4 +546,46 @@ describe('Directive v-model select', () => {
       expect(spy).not.toHaveBeenCalled()
     }).then(done)
   })
+
+  // #6903
+  describe('should correctly handle v-model when the vnodes are the same', () => {
+    function makeInstance (foo) {
+      return new Vue({
+        data: {
+          foo: foo,
+          options: ['b', 'c', 'd'],
+          value: 'c'
+        },
+        template:
+          '<div>' +
+            '<select v-if="foo" data-attr>' +
+              '<option selected>a</option>' +
+            '</select>' +
+            '<select v-else v-model="value">' +
+              '<option v-for="option in options" :value="option">{{ option }}</option>' +
+            '</select>' +
+          '</div>'
+      }).$mount()
+    }
+
+    it('register v-model', done => {
+      const vm = makeInstance(true)
+
+      expect(vm.$el.firstChild.selectedIndex).toBe(0)
+      vm.foo = false
+      waitForUpdate(() => {
+        expect(vm.$el.firstChild.selectedIndex).toBe(1)
+      }).then(done)
+    })
+
+    it('remove v-model', done => {
+      const vm = makeInstance(false)
+
+      expect(vm.$el.firstChild.selectedIndex).toBe(1)
+      vm.foo = true
+      waitForUpdate(() => {
+        expect(vm.$el.firstChild.selectedIndex).toBe(0)
+      }).then(done)
+    })
+  })
 })

From 664cee63775cf6cef932b79eaed0caec5bbc54d6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 2 Nov 2017 22:05:59 -0400
Subject: [PATCH 214/911] refactor: small tweak to #6910

---
 src/platforms/web/runtime/directives/model.js | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index f707b036ad0..2f625739290 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -5,9 +5,8 @@
 
 import { isTextInputType } from 'web/util/element'
 import { looseEqual, looseIndexOf } from 'shared/util'
-import { warn, isAndroid, isIE9, isIE, isEdge } from 'core/util/index'
 import { mergeVNodeHook } from 'core/vdom/helpers/index'
-import { emptyNode } from 'core/vdom/patch'
+import { warn, isAndroid, isIE9, isIE, isEdge } from 'core/util/index'
 
 /* istanbul ignore if */
 if (isIE9) {
@@ -24,7 +23,7 @@ const directive = {
   inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
       // #6903
-      if (oldVnode !== emptyNode && !hasDirective(oldVnode, 'model')) {
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
         mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', () => {
           directive.componentUpdated(el, binding, vnode)
         })
@@ -51,6 +50,7 @@ const directive = {
       }
     }
   },
+
   componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context)
@@ -146,10 +146,4 @@ function trigger (el, type) {
   el.dispatchEvent(e)
 }
 
-function hasDirective (vnode, dirname) {
-  return vnode.data &&
-    vnode.data.directives &&
-    vnode.data.directives.some(dir => dir.name === dirname)
-}
-
 export default directive

From 53b77f805475f217eb221a475409e9a27f590549 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 2 Nov 2017 22:10:22 -0400
Subject: [PATCH 215/911] refactor: simplify mergeVNodeHook usage

---
 src/core/vdom/helpers/merge-hook.js             | 4 ++++
 src/core/vdom/modules/directives.js             | 4 ++--
 src/platforms/web/runtime/directives/model.js   | 2 +-
 src/platforms/web/runtime/modules/transition.js | 2 +-
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/core/vdom/helpers/merge-hook.js b/src/core/vdom/helpers/merge-hook.js
index 2312d92a5e5..0bb96e8bacb 100644
--- a/src/core/vdom/helpers/merge-hook.js
+++ b/src/core/vdom/helpers/merge-hook.js
@@ -1,9 +1,13 @@
 /* @flow */
 
+import VNode from '../vnode'
 import { createFnInvoker } from './update-listeners'
 import { remove, isDef, isUndef, isTrue } from 'shared/util'
 
 export function mergeVNodeHook (def: Object, hookKey: string, hook: Function) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {})
+  }
   let invoker
   const oldHook = def[hookKey]
 
diff --git a/src/core/vdom/modules/directives.js b/src/core/vdom/modules/directives.js
index db35c3543f0..42e33f9e981 100644
--- a/src/core/vdom/modules/directives.js
+++ b/src/core/vdom/modules/directives.js
@@ -54,14 +54,14 @@ function _update (oldVnode, vnode) {
       }
     }
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert)
+      mergeVNodeHook(vnode, 'insert', callInsert)
     } else {
       callInsert()
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', () => {
+    mergeVNodeHook(vnode, 'postpatch', () => {
       for (let i = 0; i < dirsWithPostpatch.length; i++) {
         callHook(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode)
       }
diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index 2f625739290..c3b669f3bb5 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -24,7 +24,7 @@ const directive = {
     if (vnode.tag === 'select') {
       // #6903
       if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', () => {
+        mergeVNodeHook(vnode, 'postpatch', () => {
           directive.componentUpdated(el, binding, vnode)
         })
       } else {
diff --git a/src/platforms/web/runtime/modules/transition.js b/src/platforms/web/runtime/modules/transition.js
index 94acb90debc..9ff1c1d2f70 100644
--- a/src/platforms/web/runtime/modules/transition.js
+++ b/src/platforms/web/runtime/modules/transition.js
@@ -130,7 +130,7 @@ export function enter (vnode: VNodeWithData, toggleDisplay: ?() => void) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', () => {
+    mergeVNodeHook(vnode, 'insert', () => {
       const parent = el.parentNode
       const pendingNode = parent && parent._pending && parent._pending[vnode.key]
       if (pendingNode &&

From 79c0d7bcfbcd1ac492e7ceb77f5024d09efdc6b3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 2 Nov 2017 23:04:31 -0400
Subject: [PATCH 216/911] fix(ssr): properly render textarea value

partial fix for #6986
---
 src/platforms/web/server/modules/dom-props.js |  3 +++
 src/server/optimizing-compiler/codegen.js     |  3 +++
 src/server/optimizing-compiler/modules.js     |  4 +++
 test/ssr/ssr-string.spec.js                   | 25 +++++++++++++++++++
 4 files changed, 35 insertions(+)

diff --git a/src/platforms/web/server/modules/dom-props.js b/src/platforms/web/server/modules/dom-props.js
index 98a0daf7f35..57c18eefc89 100644
--- a/src/platforms/web/server/modules/dom-props.js
+++ b/src/platforms/web/server/modules/dom-props.js
@@ -27,7 +27,10 @@ export default function renderDOMProps (node: VNodeWithData): string {
       setText(node, props[key], true)
     } else if (key === 'textContent') {
       setText(node, props[key], false)
+    } else if (key === 'value' && node.tag === 'textarea') {
+      setText(node, props[key], false)
     } else {
+      // $flow-disable-line (WTF?)
       const attr = propsToAttrMap[key] || key.toLowerCase()
       if (isRenderableAttr(attr) &&
         // avoid rendering double-bound props/attrs twice
diff --git a/src/server/optimizing-compiler/codegen.js b/src/server/optimizing-compiler/codegen.js
index dfc4477d915..26097c07b48 100644
--- a/src/server/optimizing-compiler/codegen.js
+++ b/src/server/optimizing-compiler/codegen.js
@@ -205,6 +205,9 @@ function childrenToSegments (el, state): Array<StringSegment> {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: `_s(${binding})` }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: `_s(${binding})` }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
diff --git a/src/server/optimizing-compiler/modules.js b/src/server/optimizing-compiler/modules.js
index e01f5ed6fb2..41b1af1d9d2 100644
--- a/src/server/optimizing-compiler/modules.js
+++ b/src/server/optimizing-compiler/modules.js
@@ -31,6 +31,10 @@ export function applyModelTransform (el: ASTElement, state: CodegenState) {
       const dir = el.directives[i]
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn)
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(p => p.name !== 'value')
+        }
         break
       }
     }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 60c801fab01..20f5ec51a21 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1009,6 +1009,31 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('render v-model with textarea', done => {
+    renderVmWithOptions({
+      data: { foo: 'bar' },
+      template: '<div><textarea v-model="foo"></textarea></div>'
+    }, result => {
+      expect(result).toContain('<textarea>bar</textarea>')
+      done()
+    })
+  })
+
+  it('render v-model with textarea (non-optimized)', done => {
+    renderVmWithOptions({
+      render (h) {
+        return h('textarea', {
+          domProps: {
+            value: 'foo'
+          }
+        })
+      }
+    }, result => {
+      expect(result).toContain('<textarea data-server-rendered="true">foo</textarea>')
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From e80104eb63ae44e159061a3753aa0356ac8b82eb Mon Sep 17 00:00:00 2001
From: ZhangJan <dsonet@msn.com>
Date: Fri, 3 Nov 2017 23:39:16 +0800
Subject: [PATCH 217/911] refactor: minor tweak on conditions order (#6992)

---
 src/compiler/parser/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index c4554dbbecc..1f578103162 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -559,8 +559,8 @@ function processAttrs (el) {
       // #6887 firefox doesn't update muted state if set via attribute
       // even immediately after element creation
       if (!el.component &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name) &&
-          name === 'muted') {
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
         addProp(el, name, 'true')
       }
     }

From e1657fd7ce49bff3c3ecad3c56ae527347505c34 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 3 Nov 2017 15:30:47 -0400
Subject: [PATCH 218/911] fix(ssr): properly render <select v-model> initial
 state

fix #6986
---
 src/platforms/web/server/directives/index.js |  4 +-
 src/platforms/web/server/directives/model.js | 44 +++++++++++
 src/server/optimizing-compiler/optimizer.js  | 14 +++-
 test/ssr/ssr-string.spec.js                  | 78 ++++++++++++++++++++
 4 files changed, 138 insertions(+), 2 deletions(-)
 create mode 100644 src/platforms/web/server/directives/model.js

diff --git a/src/platforms/web/server/directives/index.js b/src/platforms/web/server/directives/index.js
index 89c2eee24d8..fd7fce0a34c 100644
--- a/src/platforms/web/server/directives/index.js
+++ b/src/platforms/web/server/directives/index.js
@@ -1,5 +1,7 @@
 import show from './show'
+import model from './model'
 
 export default {
-  show
+  show,
+  model
 }
diff --git a/src/platforms/web/server/directives/model.js b/src/platforms/web/server/directives/model.js
new file mode 100644
index 00000000000..7962d6c8ac1
--- /dev/null
+++ b/src/platforms/web/server/directives/model.js
@@ -0,0 +1,44 @@
+/* @flow */
+
+import { looseEqual, looseIndexOf } from 'shared/util'
+
+// this is only applied for <select v-model> because it is the only edge case
+// that must be done at runtime instead of compile time.
+export default function model (node: VNodeWithData, dir: VNodeDirective) {
+  if (!node.children) return
+  const value = dir.value
+  const isMultiple = node.data.attrs && node.data.attrs.multiple
+  for (let i = 0, l = node.children.length; i < l; i++) {
+    const option = node.children[i]
+    if (option.tag === 'option') {
+      if (isMultiple) {
+        const selected =
+          Array.isArray(value) &&
+          (looseIndexOf(value, getValue(option)) > -1)
+        if (selected) {
+          setSelected(option)
+        }
+      } else {
+        if (looseEqual(value, getValue(option))) {
+          setSelected(option)
+          return
+        }
+      }
+    }
+  }
+}
+
+function getValue (option) {
+  const data = option.data || {}
+  return (
+    (data.attrs && data.attrs.value) ||
+    (data.domProps && data.domProps.value) ||
+    (option.children && option.children[0] && option.children[0].text)
+  )
+}
+
+function setSelected (option) {
+  const data = option.data || (option.data = {})
+  const attrs = data.attrs || (data.attrs = {})
+  attrs.selected = ''
+}
diff --git a/src/server/optimizing-compiler/optimizer.js b/src/server/optimizing-compiler/optimizer.js
index 1a671803caa..92cfe22eb4a 100644
--- a/src/server/optimizing-compiler/optimizer.js
+++ b/src/server/optimizing-compiler/optimizer.js
@@ -113,7 +113,8 @@ function isUnOptimizableTree (node: ASTNode): boolean {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -126,3 +127,14 @@ function hasCustomDirective (node: ASTNode): ?boolean {
     node.directives.some(d => !isBuiltInDir(d.name))
   )
 }
+
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node: ASTNode): ?boolean {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives &&
+    node.directives.some(d => d.name === 'model')
+  )
+}
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 20f5ec51a21..3e8470f9250 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1034,6 +1034,84 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('render v-model with <select> (value binding)', done => {
+    renderVmWithOptions({
+      data: {
+        selected: 2,
+        options: [
+          { id: 1, label: 'one' },
+          { id: 2, label: 'two' }
+        ]
+      },
+      template: `
+      <div>
+        <select v-model="selected">
+          <option v-for="o in options" :value="o.id">{{ o.label }}</option>
+        </select>
+      </div>
+      `
+    }, result => {
+      expect(result).toContain(
+        '<select>' +
+          '<option value="1">one</option>' +
+          '<option selected="selected" value="2">two</option>' +
+        '</select>'
+      )
+      done()
+    })
+  })
+
+  it('render v-model with <select> (static value)', done => {
+    renderVmWithOptions({
+      data: {
+        selected: 2
+      },
+      template: `
+      <div>
+        <select v-model="selected">
+          <option value="1">one</option>
+          <option value="2">two</option>
+        </select>
+      </div>
+      `
+    }, result => {
+      expect(result).toContain(
+        '<select>' +
+          '<option value="1">one</option> ' +
+          '<option value="2" selected="selected">two</option>' +
+        '</select>'
+      )
+      done()
+    })
+  })
+
+  it('render v-model with <select> (text as value)', done => {
+    renderVmWithOptions({
+      data: {
+        selected: 2,
+        options: [
+          { id: 1, label: 'one' },
+          { id: 2, label: 'two' }
+        ]
+      },
+      template: `
+      <div>
+        <select v-model="selected">
+          <option v-for="o in options">{{ o.id }}</option>
+        </select>
+      </div>
+      `
+    }, result => {
+      expect(result).toContain(
+        '<select>' +
+          '<option>1</option>' +
+          '<option selected="selected">2</option>' +
+        '</select>'
+      )
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 4fe1a95d2953ecf765e27677fa70ebadb176d4c3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 3 Nov 2017 15:40:40 -0400
Subject: [PATCH 219/911] fix: properly mark slot rendered flag in production
 mode

fix #6997
---
 src/core/instance/render-helpers/render-slot.js | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/core/instance/render-helpers/render-slot.js b/src/core/instance/render-helpers/render-slot.js
index 1a194c579e3..a9ef129b729 100644
--- a/src/core/instance/render-helpers/render-slot.js
+++ b/src/core/instance/render-helpers/render-slot.js
@@ -27,12 +27,14 @@ export function renderSlot (
   } else {
     const slotNodes = this.$slots[name]
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        `Duplicate presence of slot "${name}" found in the same render tree ` +
-        `- this will likely cause render errors.`,
-        this
-      )
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          `Duplicate presence of slot "${name}" found in the same render tree ` +
+          `- this will likely cause render errors.`,
+          this
+        )
+      }
       slotNodes._rendered = true
     }
     return slotNodes || fallback

From 5a9da95b8a865416f082952a48416ffc091e4078 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 3 Nov 2017 16:45:54 -0400
Subject: [PATCH 220/911] fix(slots): properly handle nested named slot passing

fix #6996
---
 src/compiler/parser/index.js                  |  2 +-
 .../instance/render-helpers/render-slot.js    | 12 +++++--
 .../instance/render-helpers/resolve-slots.js  | 11 +++---
 .../features/component/component-slot.spec.js | 36 +++++++++++++++++++
 4 files changed, 53 insertions(+), 8 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 1f578103162..1a28e86de2e 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -467,7 +467,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget)
       }
     }
diff --git a/src/core/instance/render-helpers/render-slot.js b/src/core/instance/render-helpers/render-slot.js
index a9ef129b729..a58daa74e62 100644
--- a/src/core/instance/render-helpers/render-slot.js
+++ b/src/core/instance/render-helpers/render-slot.js
@@ -12,6 +12,7 @@ export function renderSlot (
   bindObject: ?Object
 ): ?Array<VNode> {
   const scopedSlotFn = this.$scopedSlots[name]
+  let nodes
   if (scopedSlotFn) { // scoped slot
     props = props || {}
     if (bindObject) {
@@ -23,7 +24,7 @@ export function renderSlot (
       }
       props = extend(extend({}, bindObject), props)
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback
   } else {
     const slotNodes = this.$slots[name]
     // warn duplicate slot usage
@@ -37,6 +38,13 @@ export function renderSlot (
       }
       slotNodes._rendered = true
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback
+  }
+
+  const target = props && props.slot
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 26ed51d742a..629177e4771 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -11,7 +11,6 @@ export function resolveSlots (
   if (!children) {
     return slots
   }
-  const defaultSlot = []
   for (let i = 0, l = children.length; i < l; i++) {
     const child = children[i]
     const data = child.data
@@ -32,12 +31,14 @@ export function resolveSlots (
         slot.push(child)
       }
     } else {
-      defaultSlot.push(child)
+      (slots.default || (slots.default = [])).push(child)
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot
+  // ignore slots that contains only whitespace
+  for (const name in slots) {
+    if (slots[name].every(isWhitespace)) {
+      delete slots[name]
+    }
   }
   return slots
 }
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 4ceadfc2153..4e6deac39cb 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -743,4 +743,40 @@ describe('Component slot', () => {
     }).$mount()
     expect(vm.$el.children[0].getAttribute('slot')).toBe('foo')
   })
+
+  it('passing a slot down as named slot', () => {
+    const Bar = {
+      template: `<div class="bar"><slot name="foo"/></div>`
+    }
+
+    const Foo = {
+      components: { Bar },
+      template: `<div class="foo"><bar><slot slot="foo"/></bar></div>`
+    }
+
+    const vm = new Vue({
+      components: { Foo },
+      template: `<div><foo>hello</foo></div>`
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe('<div class="foo"><div class="bar">hello</div></div>')
+  })
+
+  it('fallback content for named template slot', () => {
+    const Bar = {
+      template: `<div class="bar"><slot name="foo">fallback</slot></div>`
+    }
+
+    const Foo = {
+      components: { Bar },
+      template: `<div class="foo"><bar><template slot="foo"/><slot/></template></bar></div>`
+    }
+
+    const vm = new Vue({
+      components: { Foo },
+      template: `<div><foo></foo></div>`
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe('<div class="foo"><div class="bar">fallback</div></div>')
+  })
 })

From ad673e12575404ee68ed267d4186de803f3dbb08 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 3 Nov 2017 16:51:16 -0400
Subject: [PATCH 221/911] chore: fix flow

---
 src/server/optimizing-compiler/optimizer.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/server/optimizing-compiler/optimizer.js b/src/server/optimizing-compiler/optimizer.js
index 92cfe22eb4a..d24acc5526a 100644
--- a/src/server/optimizing-compiler/optimizer.js
+++ b/src/server/optimizing-compiler/optimizer.js
@@ -130,11 +130,11 @@ function hasCustomDirective (node: ASTNode): ?boolean {
 
 // <select v-model> cannot be optimized because it requires a runtime check
 // to determine proper selected option
-function isSelectWithModel (node: ASTNode): ?boolean {
+function isSelectWithModel (node: ASTNode): boolean {
   return (
     node.type === 1 &&
     node.tag === 'select' &&
-    node.directives &&
+    node.directives != null &&
     node.directives.some(d => d.name === 'model')
   )
 }

From 015a31890250e93564959de97372be7bd6195f62 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 3 Nov 2017 17:11:28 -0400
Subject: [PATCH 222/911] build: build 2.5.3

---
 dist/vue.common.js                          | 166 ++++++++++++-------
 dist/vue.esm.js                             | 166 ++++++++++++-------
 dist/vue.js                                 | 166 ++++++++++++-------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  |  99 +++++++----
 dist/vue.runtime.esm.js                     | 105 ++++++++----
 dist/vue.runtime.js                         | 105 ++++++++----
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 174 ++++++++++++++++----
 packages/vue-server-renderer/build.js       | 174 ++++++++++++++++----
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  61 +++++--
 packages/vue-template-compiler/build.js     |  61 +++++--
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 914 insertions(+), 375 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index a2e14269bf4..5527db3e248 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -760,6 +760,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -767,7 +768,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -775,8 +776,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1009,7 +1015,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1141,7 +1147,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1175,7 +1181,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1981,6 +1987,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2348,6 +2357,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2403,7 +2413,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2465,7 +2475,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2486,12 +2495,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3655,6 +3666,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3666,19 +3678,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3781,8 +3802,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3792,7 +3813,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4833,8 +4854,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4930,7 +4951,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5911,9 +5932,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5924,9 +5948,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5955,6 +5978,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6020,14 +6044,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6812,6 +6836,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -7417,7 +7442,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7656,10 +7681,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7680,6 +7712,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7838,7 +7871,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
@@ -8255,19 +8288,6 @@ Vue$3.nextTick(function () {
 
 /*  */
 
-// check whether current browser encodes a char inside attribute values
-function shouldDecode (content, encoded) {
-  var div = document.createElement('div');
-  div.innerHTML = "<div a=\"" + content + "\"/>";
-  return div.innerHTML.indexOf(encoded) > 0
-}
-
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
-
-/*  */
-
 var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
@@ -8464,10 +8484,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -8658,12 +8679,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -8822,6 +8843,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -9180,7 +9202,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -9269,6 +9291,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -9373,6 +9402,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -9403,6 +9434,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -10469,6 +10507,21 @@ var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
 
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
 var idToTemplate = cached(function (id) {
   var el = query(id);
   return el && el.innerHTML
@@ -10524,6 +10577,7 @@ Vue$3.prototype.$mount = function (
 
       var ref = compileToFunctions(template, {
         shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
         comments: options.comments
       }, this);
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index beaec6fc3f1..b623498876a 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -758,6 +758,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -765,7 +766,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -773,8 +774,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1007,7 +1013,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1139,7 +1145,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1173,7 +1179,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1979,6 +1985,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2346,6 +2355,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2401,7 +2411,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2463,7 +2473,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2484,12 +2493,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3653,6 +3664,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3664,19 +3676,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3779,8 +3800,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3790,7 +3811,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4831,8 +4852,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4928,7 +4949,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5909,9 +5930,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5922,9 +5946,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5953,6 +5976,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6018,14 +6042,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6810,6 +6834,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -7415,7 +7440,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7654,10 +7679,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7678,6 +7710,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7836,7 +7869,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
@@ -8253,19 +8286,6 @@ Vue$3.nextTick(function () {
 
 /*  */
 
-// check whether current browser encodes a char inside attribute values
-function shouldDecode (content, encoded) {
-  var div = document.createElement('div');
-  div.innerHTML = "<div a=\"" + content + "\"/>";
-  return div.innerHTML.indexOf(encoded) > 0
-}
-
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
-
-/*  */
-
 var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
@@ -8462,10 +8482,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -8656,12 +8677,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -8820,6 +8841,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -9178,7 +9200,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -9267,6 +9289,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -9371,6 +9400,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -9401,6 +9432,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -10467,6 +10505,21 @@ var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
 
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
 var idToTemplate = cached(function (id) {
   var el = query(id);
   return el && el.innerHTML
@@ -10522,6 +10575,7 @@ Vue$3.prototype.$mount = function (
 
       var ref = compileToFunctions(template, {
         shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
         comments: options.comments
       }, this);
diff --git a/dist/vue.js b/dist/vue.js
index 1d2b02ea047..0f3458d64bb 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -764,6 +764,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -771,7 +772,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -779,8 +780,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1013,7 +1019,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1145,7 +1151,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1179,7 +1185,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1985,6 +1991,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2350,6 +2359,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2405,7 +2415,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2467,7 +2477,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2488,12 +2497,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3651,6 +3662,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3662,19 +3674,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3777,8 +3798,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3788,7 +3809,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4822,8 +4843,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4919,7 +4940,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5900,9 +5921,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5913,9 +5937,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5944,6 +5967,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6009,14 +6033,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6801,6 +6825,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -7406,7 +7431,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7645,10 +7670,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7669,6 +7701,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7827,7 +7860,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
@@ -8244,19 +8277,6 @@ Vue$3.nextTick(function () {
 
 /*  */
 
-// check whether current browser encodes a char inside attribute values
-function shouldDecode (content, encoded) {
-  var div = document.createElement('div');
-  div.innerHTML = "<div a=\"" + content + "\"/>";
-  return div.innerHTML.indexOf(encoded) > 0
-}
-
-// #3663
-// IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;
-
-/*  */
-
 var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
@@ -8453,10 +8473,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -8647,12 +8668,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -8811,6 +8832,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -9169,7 +9191,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -9258,6 +9280,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -9362,6 +9391,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -9392,6 +9423,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -10458,6 +10496,21 @@ var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
 
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
 var idToTemplate = cached(function (id) {
   var el = query(id);
   return el && el.innerHTML
@@ -10513,6 +10566,7 @@ Vue$3.prototype.$mount = function (
 
       var ref = compileToFunctions(template, {
         shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
         comments: options.comments
       }, this);
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 30eb181a922..3bc6c463096 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Ai.call(e)}function s(e){return"[object RegExp]"===Ai.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return 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r=t.value;r!==t.oldValue&&((n=ur(n)).data&&n.data.transition?(n.data.show=!0,r?Yn(n,function(){e.style.display=e.__vOriginalDisplay}):Qn(n,function(){e.style.display="none"})):e.style.display=r?e.__vOriginalDisplay:"none")},unbind:function(e,t,n,r,i){i||(e.style.display=e.__vOriginalDisplay)}}},Xa={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},es={name:"transition",props:Xa,abstract:!0,render:function(e){var t=this,n=this.$options._renderChildren;if(n&&(n=n.filter(function(e){return e.tag||me(e)})).length){var r=this.mode,o=n[0];if(pr(this.$vnode))return o;var a=lr(o);if(!a)return o;if(this._leaving)return dr(e,o);var 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ws,xs,ks,As,Os,Ss,Ts,Es,js,Ns,Ls,Is=f("script,style,textarea",!0),Ms={},Ds={"&lt;":"<","&gt;":">","&quot;":'"',"&amp;":"&","&#10;":"\n","&#9;":"\t"},Ps=/&(?:lt|gt|quot|amp);/g,Fs=/&(?:lt|gt|quot|amp|#10|#9);/g,Rs=f("pre,textarea",!0),Hs=function(e,t){return e&&Rs(e)&&"\n"===t[0]},Bs=/^@|^v-on:/,Us=/^v-|^@|^:/,Vs=/(.*?)\s+(?:in|of)\s+(.*)/,zs=/\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/,Ks=/:(.*)$/,Js=/^:|^v-bind:/,qs=/\.[^.]+/g,Ws=v(us.decode),Gs=/^xmlns:NS\d+/,Zs=/^NS\d+:/,Ys=[ss,cs,{preTransformNode:function(e,t){if("input"===e.tag){var n=e.attrsMap;if(n["v-model"]&&(n["v-bind:type"]||n[":type"])){var r=vn(e,"type"),i=hn(e,"v-if",!0),o=i?"&&("+i+")":"",a=null!=hn(e,"v-else",!0),s=hn(e,"v-else-if",!0),c=Vr(e);Sr(c),zr(c,"type","checkbox"),kr(c,t),c.processed=!0,c.if="("+r+")==='checkbox'"+o,Nr(c,{exp:c.if,block:c});var u=Vr(e);hn(u,"v-for",!0),zr(u,"type","radio"),kr(u,t),Nr(c,{exp:"("+r+")==='radio'"+o,block:u});var l=Vr(e);return 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f("type,tag,attrsList,attrsMap,plain,parent,children,attrs"+(e?","+e:""))}),ec=/^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/,tc=/^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/,nc={esc:27,tab:9,enter:13,space:32,up:38,left:37,right:39,down:40,delete:[8,46]},rc=function(e){return"if("+e+")return null;"},ic={stop:"$event.stopPropagation();",prevent:"$event.preventDefault();",self:rc("$event.target !== $event.currentTarget"),ctrl:rc("!$event.ctrlKey"),shift:rc("!$event.shiftKey"),alt:rc("!$event.altKey"),meta:rc("!$event.metaKey"),left:rc("'button' in $event && $event.button !== 0"),middle:rc("'button' in $event && $event.button !== 1"),right:rc("'button' in $event && $event.button !== 2")},oc={on:function(e,t){e.wrapListeners=function(e){return"_g("+e+","+t.value+")"}},bind:function(e,t){e.wrapData=function(n){return"_b("+n+",'"+e.tag+"',"+t.value+","+(t.modifiers&&t.modifiers.prop?"true":"false")+(t.modifiers&&t.modifiers.sync?",true":"")+")"}},cloak:_},ac=function(e){this.options=e,this.warn=e.warn||cn,this.transforms=un(e.modules,"transformCode"),this.dataGenFns=un(e.modules,"genData"),this.directives=y(y({},oc),e.directives);var t=e.isReservedTag||Di;this.maybeComponent=function(e){return!t(e.tag)},this.onceId=0,this.staticRenderFns=[]},sc=(new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b"),new RegExp("\\b"+"delete,typeof,void".split(",").join("\\s*\\([^\\)]*\\)|\\b")+"\\s*\\([^\\)]*\\)"),function(e){return function(t){function n(n,r){var 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 18b21e77bb6..23689454263 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -756,6 +756,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -763,7 +764,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -771,8 +772,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1005,7 +1011,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1137,7 +1143,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1171,7 +1177,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1977,6 +1983,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2344,6 +2353,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2399,7 +2409,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2461,7 +2471,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2482,12 +2491,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3651,6 +3662,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3662,19 +3674,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -4829,8 +4850,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4926,7 +4947,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5907,9 +5928,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5920,9 +5944,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5951,6 +5974,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6016,14 +6040,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6315,6 +6339,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -6920,7 +6945,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7159,10 +7184,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7183,6 +7215,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7341,7 +7374,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index fe84e3f45e3..d6f7bc5a676 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -754,6 +754,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -761,7 +762,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -769,8 +770,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1003,7 +1009,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1135,7 +1141,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1169,7 +1175,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1975,6 +1981,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2342,6 +2351,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2397,7 +2407,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2459,7 +2469,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2480,12 +2489,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3649,6 +3660,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3660,19 +3672,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3775,8 +3796,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3786,7 +3807,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4827,8 +4848,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4924,7 +4945,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5905,9 +5926,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5918,9 +5942,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5949,6 +5972,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6014,14 +6038,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6313,6 +6337,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -6918,7 +6943,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7157,10 +7182,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7181,6 +7213,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7339,7 +7372,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 16ff77614f3..10f03be4bb1 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -760,6 +760,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -767,7 +768,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -775,8 +776,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1009,7 +1015,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1141,7 +1147,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1175,7 +1181,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1981,6 +1987,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2346,6 +2355,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2401,7 +2411,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2463,7 +2473,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2484,12 +2493,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -3647,6 +3658,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3658,19 +3670,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3773,8 +3794,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3784,7 +3805,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4818,8 +4839,8 @@ var KeepAlive = {
       // check pattern
       var name = getComponentName(componentOptions);
       if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
+        (this.exclude && matches(this.exclude, name)) ||
+        (this.include && !matches(this.include, name))
       )) {
         return vnode
       }
@@ -4915,7 +4936,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.2';
+Vue$3.version = '2.5.3';
 
 /*  */
 
@@ -5896,9 +5917,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5909,9 +5933,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5940,6 +5963,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -6005,14 +6029,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -6304,6 +6328,7 @@ function updateDOMListeners (oldVnode, vnode) {
   target$1 = vnode.elm;
   normalizeEvents(on);
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -6909,7 +6934,7 @@ function enter (vnode, toggleDisplay) {
 
   if (!vnode.data.show) {
     // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
+    mergeVNodeHook(vnode, 'insert', function () {
       var parent = el.parentNode;
       var pendingNode = parent && parent._pending && parent._pending[vnode.key];
       if (pendingNode &&
@@ -7148,10 +7173,17 @@ if (isIE9) {
   });
 }
 
-var model$1 = {
-  inserted: function inserted (el, binding, vnode) {
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
     if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
       el._vOptions = [].map.call(el.options, getValue);
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
@@ -7172,6 +7204,7 @@ var model$1 = {
       }
     }
   },
+
   componentUpdated: function componentUpdated (el, binding, vnode) {
     if (vnode.tag === 'select') {
       setSelected(el, binding, vnode.context);
@@ -7330,7 +7363,7 @@ var show = {
 };
 
 var platformDirectives = {
-  model: model$1,
+  model: directive,
   show: show
 };
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 787685ca491..3693fa071b3 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.2
+ * Vue.js v2.5.3
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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null==t||!1===t},Oo={svg:"http://www.w3.org/2000/svg",math:"http://www.w3.org/1998/Math/MathML"},So=f("html,body,base,head,link,meta,style,title,address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,s,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,embed,object,param,source,canvas,script,noscript,del,ins,caption,col,colgroup,table,thead,tbody,td,th,tr,button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,output,progress,select,textarea,details,dialog,menu,menuitem,summary,content,element,shadow,template,blockquote,iframe,tfoot"),Eo=f("svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view",!0),jo=function(t){return So(t)||Eo(t)},Io=Object.create(null),To=f("text,number,password,search,email,tel,url"),Do=Object.freeze({createElement:function(t,e){var n=document.createElement(t);return"select"!==t?n:(e.data&&e.data.attrs&&void 0!==e.data.attrs.multiple&&n.setAttribute("multiple","multiple"),n)},createElementNS:function(t,e){return document.createElementNS(Oo[t],e)},createTextNode:function(t){return document.createTextNode(t)},createComment:function(t){return document.createComment(t)},insertBefore:function(t,e,n){t.insertBefore(e,n)},removeChild:function(t,e){t.removeChild(e)},appendChild:function(t,e){t.appendChild(e)},parentNode:function(t){return t.parentNode},nextSibling:function(t){return t.nextSibling},tagName:function(t){return t.tagName},setTextContent:function(t,e){t.textContent=e},setAttribute:function(t,e,n){t.setAttribute(e,n)}}),Lo={create:function(t,e){qe(e)},update:function(t,e){t.data.ref!==e.data.ref&&(qe(t,!0),qe(e))},destroy:function(t){qe(t,!0)}},Po=new 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r}}),Xo={create:yn,update:yn},Yo=v(function(t){return{enterClass:t+"-enter",enterToClass:t+"-enter-to",enterActiveClass:t+"-enter-active",leaveClass:t+"-leave",leaveToClass:t+"-leave-to",leaveActiveClass:t+"-leave-active"}}),ti=dr&&!hr,ei="transition",ni="animation",ri="transition",oi="transitionend",ii="animation",ai="animationend";ti&&(void 0===window.ontransitionend&&void 0!==window.onwebkittransitionend&&(ri="WebkitTransition",oi="webkitTransitionEnd"),void 0===window.onanimationend&&void 0!==window.onwebkitanimationend&&(ii="WebkitAnimation",ai="webkitAnimationEnd"));var si=dr?window.requestAnimationFrame?window.requestAnimationFrame.bind(window):setTimeout:function(t){return t()},ci=/\b(transform|all)(,|$)/,ui=function(r){function i(t){return new Ir(I.tagName(t).toLowerCase(),{},[],void 0,t)}function a(t,e){function n(){0==--n.listeners&&s(t)}return n.listeners=e,n}function s(t){var n=I.parentNode(t);e(n)&&I.removeChild(n,t)}function c(t,r,o,i,a){if(t.isRootInsert=!a,!u(t,r,o,i)){var s=t.data,c=t.children,l=t.tag;e(l)?(t.elm=t.ns?I.createElementNS(t.ns,l):I.createElement(l,t),y(t),v(t,c,r),e(s)&&m(t,r),p(o,t.elm,i)):n(t.isComment)?(t.elm=I.createComment(t.text),p(o,t.elm,i)):(t.elm=I.createTextNode(t.text),p(o,t.elm,i))}}function u(t,r,o,i){var a=t.data;if(e(a)){var s=e(t.componentInstance)&&a.keepAlive;if(e(a=a.hook)&&e(a=a.init)&&a(t,!1,o,i),e(t.componentInstance))return l(t,r),n(s)&&d(t,r,o,i),!0}}function l(t,n){e(t.data.pendingInsert)&&(n.push.apply(n,t.data.pendingInsert),t.data.pendingInsert=null),t.elm=t.componentInstance.$el,h(t)?(m(t,n),y(t)):(qe(t),n.push(t))}function d(t,n,r,o){for(var i,a=t;a.componentInstance;)if(a=a.componentInstance._vnode,e(i=a.data)&&e(i=i.transition)){for(i=0;i<E.activate.length;++i)E.activate[i](Po,a);n.push(a);break}p(r,t.elm,o)}function p(t,n,r){e(t)&&(e(r)?r.parentNode===t&&I.insertBefore(t,n,r):I.appendChild(t,n))}function v(t,e,n){if(Array.isArray(e))for(var r=0;r<e.length;++r)c(e[r],n,t.elm,null,!0);else o(t.text)&&I.appendChild(t.elm,I.createTextNode(t.text))}function h(t){for(;t.componentInstance;)t=t.componentInstance._vnode;return e(t.tag)}function m(t,n){for(var r=0;r<E.create.length;++r)E.create[r](Po,t);e(O=t.data.hook)&&(e(O.create)&&O.create(Po,t),e(O.insert)&&n.push(t))}function y(t){var n;if(e(n=t.functionalScopeId))I.setAttribute(t.elm,n,"");else for(var r=t;r;)e(n=r.context)&&e(n=n.$options._scopeId)&&I.setAttribute(t.elm,n,""),r=r.parent;e(n=Qr)&&n!==t.context&&n!==t.functionalContext&&e(n=n.$options._scopeId)&&I.setAttribute(t.elm,n,"")}function _(t,e,n,r,o,i){for(;r<=o;++r)c(n[r],i,t,e)}function g(t){var n,r,o=t.data;if(e(o))for(e(n=o.hook)&&e(n=n.destroy)&&n(t),n=0;n<E.destroy.length;++n)E.destroy[n](t);if(e(n=t.children))for(r=0;r<t.children.length;++r)g(t.children[r])}function b(t,n,r,o){for(;r<=o;++r){var i=n[r];e(i)&&(e(i.tag)?(C(i),g(i)):s(i.elm))}}function C(t,n){if(e(n)||e(t.data)){var 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s=o.elm=r.elm;if(n(r.isAsyncPlaceholder))e(o.asyncFactory.resolved)?k(r.elm,o,i):o.isAsyncPlaceholder=!0;else if(n(o.isStatic)&&n(r.isStatic)&&o.key===r.key&&(n(o.isCloned)||n(o.isOnce)))o.componentInstance=r.componentInstance;else{var c,u=o.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,o);var l=r.children,f=o.children;if(e(u)&&h(o)){for(c=0;c<E.update.length;++c)E.update[c](r,o);e(c=u.hook)&&e(c=c.update)&&c(r,o)}t(o.text)?e(l)&&e(f)?l!==f&&w(s,l,f,i,a):e(f)?(e(r.text)&&I.setTextContent(s,""),_(s,null,f,0,f.length-1,i)):e(l)?b(s,l,0,l.length-1):e(r.text)&&I.setTextContent(s,""):r.text!==o.text&&I.setTextContent(s,o.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,o)}}}function x(t,r,o){if(n(o)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var i=0;i<r.length;++i)r[i].data.hook.insert(r[i])}function k(t,r,o){if(n(r.isComment)&&e(r.asyncFactory))return r.elm=t,r.isAsyncPlaceholder=!0,!0;r.elm=t;var i=r.tag,a=r.data,s=r.children;if(e(a)&&(e(O=a.hook)&&e(O=O.init)&&O(r,!0),e(O=r.componentInstance)))return l(r,o),!0;if(e(i)){if(e(s))if(t.hasChildNodes())if(e(O=a)&&e(O=O.domProps)&&e(O=O.innerHTML)){if(O!==t.innerHTML)return!1}else{for(var c=!0,u=t.firstChild,f=0;f<s.length;f++){if(!u||!k(u,s[f],o)){c=!1;break}u=u.nextSibling}if(!c||u)return!1}else v(r,s,o);if(e(a))for(var d in a)if(!T(d)){m(r,o);break}}else t.data!==r.text&&(t.data=r.text);return!0}var O,S,E={},j=r.modules,I=r.nodeOps;for(O=0;O<No.length;++O)for(E[No[O]]=[],S=0;S<j.length;++S)e(j[S][No[O]])&&E[No[O]].push(j[S][No[O]]);var T=f("attrs,style,class,staticClass,staticStyle,key");return function(r,o,a,s,u,l){if(!t(o)){var f=!1,d=[];if(t(r))f=!0,c(o,d,u,l);else{var p=e(r.nodeType);if(!p&&Ke(r,o))$(r,o,d,s);else{if(p){if(1===r.nodeType&&r.hasAttribute(ir)&&(r.removeAttribute(ir),a=!0),n(a)&&k(r,o,d))return x(o,d,!0),r;r=i(r)}var v=r.elm,m=I.parentNode(v);if(c(o,d,v._leaveCb?null:m,I.nextSibling(v)),e(o.parent))for(var y=o.parent,_=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,_){for(var w=0;w<E.create.length;++w)E.create[w](Po,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else qe(y);y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&g(r)}}return x(o,d,f),o.elm}e(r)&&g(r)}}({nodeOps:Do,modules:[Ro,Vo,zo,Wo,Xo,dr?{create:Tn,activate:Tn,remove:function(t,e){!0!==t.data.show?En(t,e):e()}}:{}].concat(Fo)});hr&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Fn(t,"input")});var li={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?at(n,"postpatch",function(){li.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||To(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Un),yr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Un)),hr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Fn(t,"change")}}},fi={model:li,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},di={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},pi={name:"transition",props:di,abstract:!0,render:function(t){var e=this,n=this.$options._renderChildren;if(n&&(n=n.filter(function(t){return t.tag||mt(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!mt(l)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,at(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(mt(a))return u;var d,p=function(){d()};at(c,"afterEnter",p),at(c,"enterCancelled",p),at(f,"delayLeave",function(t){d=t})}}return i}}},vi=y({tag:String,moveClass:String},di);delete vi.mode;var hi={Transition:pi,TransitionGroup:{props:vi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Gn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(oi,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(oi,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ti)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&bo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=jo,Oe.config.isReservedAttr=go,Oe.config.getTagNamespace=function(t){return Eo(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(jo(t))return!1;if(t=t.toLowerCase(),null!=Io[t])return Io[t];var e=document.createElement(t);return t.indexOf("-")>-1?Io[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Io[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,fi),y(Oe.options.components,hi),Oe.prototype.__patch__=dr?ui:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,kt(this,t,e)},Oe.nextTick(function(){cr.devtools&&xr&&xr.emit("init",Oe)},0),Oe});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 300a12d15ba..fcd36e62be3 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -484,6 +484,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -491,7 +492,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -499,8 +500,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -538,7 +544,10 @@ function renderDOMProps (node) {
       setText(node, props[key], true);
     } else if (key === 'textContent') {
       setText(node, props[key], false);
+    } else if (key === 'value' && node.tag === 'textarea') {
+      setText(node, props[key], false);
     } else {
+      // $flow-disable-line (WTF?)
       var attr = propsToAttrMap[key] || key.toLowerCase();
       if (isRenderableAttr(attr) &&
         // avoid rendering double-bound props/attrs twice
@@ -1156,7 +1165,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1267,7 +1276,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1301,7 +1310,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2179,8 +2188,52 @@ function show (node, dir) {
   }
 }
 
+/*  */
+
+// this is only applied for <select v-model> because it is the only edge case
+// that must be done at runtime instead of compile time.
+function model (node, dir) {
+  if (!node.children) { return }
+  var value = dir.value;
+  var isMultiple = node.data.attrs && node.data.attrs.multiple;
+  for (var i = 0, l = node.children.length; i < l; i++) {
+    var option = node.children[i];
+    if (option.tag === 'option') {
+      if (isMultiple) {
+        var selected =
+          Array.isArray(value) &&
+          (looseIndexOf(value, getValue(option)) > -1);
+        if (selected) {
+          setSelected(option);
+        }
+      } else {
+        if (looseEqual(value, getValue(option))) {
+          setSelected(option);
+          return
+        }
+      }
+    }
+  }
+}
+
+function getValue (option) {
+  var data = option.data || {};
+  return (
+    (data.attrs && data.attrs.value) ||
+    (data.domProps && data.domProps.value) ||
+    (option.children && option.children[0] && option.children[0].text)
+  )
+}
+
+function setSelected (option) {
+  var data = option.data || (option.data = {});
+  var attrs = data.attrs || (data.attrs = {});
+  attrs.selected = '';
+}
+
 var directives = {
-  show: show
+  show: show,
+  model: model
 };
 
 /*  */
@@ -3090,10 +3143,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -3284,12 +3338,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -3598,6 +3652,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -3956,7 +4011,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -4045,6 +4100,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -4149,6 +4211,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -4179,6 +4243,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -4193,14 +4264,14 @@ function addRawAttr (el, name, value) {
   el.attrsList.push({ name: name, value: value });
 }
 
-var model = {
+var model$1 = {
   preTransformNode: preTransformNode
 };
 
 var modules$1 = [
   klass,
   style,
-  model
+  model$1
 ];
 
 /*  */
@@ -4212,7 +4283,7 @@ var warn$2;
 var RANGE_TOKEN = '__r';
 
 
-function model$1 (
+function model$2 (
   el,
   dir,
   _warn
@@ -4377,7 +4448,7 @@ function html (el, dir) {
 }
 
 var directives$1 = {
-  model: model$1,
+  model: model$2,
   text: text,
   html: html
 };
@@ -5011,6 +5082,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -5158,7 +5233,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -5216,7 +5291,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -5230,6 +5306,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -5403,6 +5490,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
@@ -6260,6 +6350,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 /*  */
@@ -6275,7 +6366,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -6296,12 +6386,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -7010,6 +7102,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -7021,19 +7114,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && "development" !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -7136,8 +7238,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -7147,7 +7249,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index c1e672aa7a8..dbbf5154af2 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -486,6 +486,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -493,7 +494,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -501,8 +502,13 @@ function cloneVNode (vnode, deep) {
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -540,7 +546,10 @@ function renderDOMProps (node) {
       setText(node, props[key], true);
     } else if (key === 'textContent') {
       setText(node, props[key], false);
+    } else if (key === 'value' && node.tag === 'textarea') {
+      setText(node, props[key], false);
     } else {
+      // $flow-disable-line (WTF?)
       var attr = propsToAttrMap[key] || key.toLowerCase();
       if (isRenderableAttr(attr) &&
         // avoid rendering double-bound props/attrs twice
@@ -1158,7 +1167,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1269,7 +1278,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1303,7 +1312,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2181,8 +2190,52 @@ function show (node, dir) {
   }
 }
 
+/*  */
+
+// this is only applied for <select v-model> because it is the only edge case
+// that must be done at runtime instead of compile time.
+function model (node, dir) {
+  if (!node.children) { return }
+  var value = dir.value;
+  var isMultiple = node.data.attrs && node.data.attrs.multiple;
+  for (var i = 0, l = node.children.length; i < l; i++) {
+    var option = node.children[i];
+    if (option.tag === 'option') {
+      if (isMultiple) {
+        var selected =
+          Array.isArray(value) &&
+          (looseIndexOf(value, getValue(option)) > -1);
+        if (selected) {
+          setSelected(option);
+        }
+      } else {
+        if (looseEqual(value, getValue(option))) {
+          setSelected(option);
+          return
+        }
+      }
+    }
+  }
+}
+
+function getValue (option) {
+  var data = option.data || {};
+  return (
+    (data.attrs && data.attrs.value) ||
+    (data.domProps && data.domProps.value) ||
+    (option.children && option.children[0] && option.children[0].text)
+  )
+}
+
+function setSelected (option) {
+  var data = option.data || (option.data = {});
+  var attrs = data.attrs || (data.attrs = {});
+  attrs.selected = '';
+}
+
 var baseDirectives = {
-  show: show
+  show: show,
+  model: model
 };
 
 /*  */
@@ -2829,10 +2882,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -3023,12 +3077,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -3337,6 +3391,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -3695,7 +3750,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -3784,6 +3839,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -3888,6 +3950,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -3918,6 +3982,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -3932,14 +4003,14 @@ function addRawAttr (el, name, value) {
   el.attrsList.push({ name: name, value: value });
 }
 
-var model = {
+var model$1 = {
   preTransformNode: preTransformNode
 };
 
 var modules$1 = [
   klass,
   style,
-  model
+  model$1
 ];
 
 /*  */
@@ -3951,7 +4022,7 @@ var warn$2;
 var RANGE_TOKEN = '__r';
 
 
-function model$1 (
+function model$2 (
   el,
   dir,
   _warn
@@ -4116,7 +4187,7 @@ function html (el, dir) {
 }
 
 var directives = {
-  model: model$1,
+  model: model$2,
   text: text,
   html: html
 };
@@ -4750,6 +4821,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -4897,7 +4972,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -4955,7 +5030,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -4969,6 +5045,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -5142,6 +5229,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
@@ -5997,6 +6087,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 /*  */
@@ -6012,7 +6103,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -6033,12 +6123,14 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
@@ -6741,6 +6833,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -6752,19 +6845,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -6867,8 +6969,8 @@ function renderStatic (
 ) {
   // static trees can be rendered once and cached on the contructor options
   // so every instance shares the same cached trees
-  var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var options = this.$options;
+  var cached = options.cached || (options.cached = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -6878,7 +6980,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index b22297fef42..38309a24fd0 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.2",
+  "version": "2.5.3",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 7b3a8f2c448..5a049cf353f 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -320,10 +320,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -514,12 +515,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -1328,7 +1329,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1439,7 +1440,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1473,7 +1474,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2721,6 +2722,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -3079,7 +3081,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -3168,6 +3170,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -3272,6 +3281,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -3302,6 +3313,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -4584,6 +4602,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -4731,7 +4753,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -4789,7 +4811,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag$1(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -4803,6 +4826,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -4976,6 +5010,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 78c3546dfc3..93eb6db5600 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -277,10 +277,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -471,12 +472,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -1285,7 +1286,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1396,7 +1397,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1430,7 +1431,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2323,6 +2324,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -2681,7 +2683,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -2770,6 +2772,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -2874,6 +2883,8 @@ function preTransformNode (el, options) {
       var typeBinding = getBindingAttr(el, 'type');
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
       // 1. checkbox
       var branch0 = cloneASTElement(el);
       // process for on the main node
@@ -2904,6 +2915,13 @@ function preTransformNode (el, options) {
         exp: ifCondition,
         block: branch2
       });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
       return branch0
     }
   }
@@ -4186,6 +4204,10 @@ function applyModelTransform (el, state) {
       var dir = el.directives[i];
       if (dir.name === 'model') {
         state.directives.model(el, dir, state.warn);
+        // remove value for textarea as its converted to text
+        if (el.tag === 'textarea' && el.props) {
+          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+        }
         break
       }
     }
@@ -4333,7 +4355,7 @@ function walk (node, isRoot) {
     if (node.ifConditions) {
       for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
         var block = node.ifConditions[i$1].block;
-        walk(block);
+        walk(block, isRoot);
         check(block);
       }
     }
@@ -4391,7 +4413,8 @@ function isUnOptimizableTree (node) {
   return (
     isBuiltInTag(node.tag) || // built-in (slot, component)
     !isPlatformReservedTag$1(node.tag) || // custom component
-    !!node.component // "is" component
+    !!node.component || // "is" component
+    isSelectWithModel(node) // <select v-model> requires runtime inspection
   )
 }
 
@@ -4405,6 +4428,17 @@ function hasCustomDirective (node) {
   )
 }
 
+// <select v-model> cannot be optimized because it requires a runtime check
+// to determine proper selected option
+function isSelectWithModel (node) {
+  return (
+    node.type === 1 &&
+    node.tag === 'select' &&
+    node.directives != null &&
+    node.directives.some(function (d) { return d.name === 'model'; })
+  )
+}
+
 /*  */
 
 // The SSR codegen is essentially extending the default codegen to handle
@@ -4578,6 +4612,9 @@ function childrenToSegments (el, state) {
   if ((binding = el.attrsMap['v-text'])) {
     return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
   }
+  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+  }
   return el.children
     ? nodesToSegments(el.children, state)
     : []
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 200638851ed..17cf9d135f6 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.2",
+  "version": "2.5.3",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 2acc12c9edb03329c4d9cddcca26e46c672a77bc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 3 Nov 2017 17:11:29 -0400
Subject: [PATCH 223/911] build: release 2.5.3

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9e19ef45739..954108e74e0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.2",
+  "version": "2.5.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 085e2890989..7e72ab11777 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.2",
+  "version": "2.5.3",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 267ada04e8dd66f5c159dd6ba1b9f88fbbe78676 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Tue, 7 Nov 2017 06:34:22 +0900
Subject: [PATCH 224/911] fix(types): expose VueConstructor (#7002)

---
 types/index.d.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/types/index.d.ts b/types/index.d.ts
index da58517f42f..720180d2a5a 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -3,7 +3,8 @@ import { Vue } from "./vue";
 export default Vue;
 
 export {
-  CreateElement
+  CreateElement,
+  VueConstructor
 } from "./vue";
 
 export {

From f0a66c5817f6580519c7f33704c8013398724039 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 7 Nov 2017 17:10:39 -0500
Subject: [PATCH 225/911] refactor: cache v-once and purely static trees
 separately

---
 src/compiler/codegen/index.js                 | 12 +++++++++---
 .../instance/render-helpers/render-static.js  | 19 +++++++++++++------
 test/unit/modules/compiler/codegen.spec.js    |  4 ++--
 3 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 17b31e5b510..7b8a1826d7a 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -86,10 +86,16 @@ export function genElement (el: ASTElement, state: CodegenState): string {
 }
 
 // hoist static sub-trees out
-function genStatic (el: ASTElement, state: CodegenState): string {
+function genStatic (el: ASTElement, state: CodegenState, once: ?boolean): string {
   el.staticProcessed = true
   state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`)
-  return `_m(${state.staticRenderFns.length - 1}${el.staticInFor ? ',true' : ''})`
+  return `_m(${
+    state.staticRenderFns.length - 1
+  },${
+    el.staticInFor ? 'true' : 'false'
+  },${
+    once ? 'true' : 'false'
+  })`
 }
 
 // v-once
@@ -115,7 +121,7 @@ function genOnce (el: ASTElement, state: CodegenState): string {
     }
     return `_o(${genElement(el, state)},${state.onceId++},${key})`
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
diff --git a/src/core/instance/render-helpers/render-static.js b/src/core/instance/render-helpers/render-static.js
index 1236c94792c..d80311e5604 100644
--- a/src/core/instance/render-helpers/render-static.js
+++ b/src/core/instance/render-helpers/render-static.js
@@ -7,12 +7,19 @@ import { cloneVNode, cloneVNodes } from 'core/vdom/vnode'
  */
 export function renderStatic (
   index: number,
-  isInFor?: boolean
+  isInFor: boolean,
+  isOnce: boolean
 ): VNode | Array<VNode> {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  const options = this.$options
-  const cached = options.cached || (options.cached = [])
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  const isOldVersion = arguments.length < 3
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  const renderFns = this.$options.staticRenderFns
+  const cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []))
   let tree = cached[index]
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -22,7 +29,7 @@ export function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this)
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this)
   markStatic(tree, `__static__${index}`, false)
   return tree
 }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index d8b6c7e6839..5e042668fd7 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -478,7 +478,7 @@ describe('codegen', () => {
     // have "inline-template'"
     assertCodegen(
       '<my-component inline-template><p><span>hello world</span></p></my-component>',
-      `with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _m(0)}},staticRenderFns:[function(){with(this){return _c('p',[_c('span',[_v("hello world")])])}}]}})}`
+      `with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _m(0,false,false)}},staticRenderFns:[function(){with(this){return _c('p',[_c('span',[_v("hello world")])])}}]}})}`
     )
     // "have inline-template attrs, but not having exactly one child element
     assertCodegen(
@@ -498,7 +498,7 @@ describe('codegen', () => {
   it('generate static trees inside v-for', () => {
     assertCodegen(
       `<div><div v-for="i in 10"><p><span></span></p></div></div>`,
-      `with(this){return _c('div',_l((10),function(i){return _c('div',[_m(0,true)])}))}`,
+      `with(this){return _c('div',_l((10),function(i){return _c('div',[_m(0,true,false)])}))}`,
       [`with(this){return _c('p',[_c('span')])}`]
     )
   })

From 9463ac8746f57d1dff6f958b7d79765aa0979fa8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 7 Nov 2017 17:25:55 -0500
Subject: [PATCH 226/911] test: fix weex tests

---
 test/weex/compiler/compile.spec.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/weex/compiler/compile.spec.js b/test/weex/compiler/compile.spec.js
index 7a717f19146..cd69c7414d9 100644
--- a/test/weex/compiler/compile.spec.js
+++ b/test/weex/compiler/compile.spec.js
@@ -32,12 +32,12 @@ describe('compile basic', () => {
 
   it('should compile unary tag', () => {
     const inputCase = compile(`<div><input><text>abc</text></div>`)
-    expect(inputCase.render).toMatch(strToRegExp(`return _m(0)`))
+    expect(inputCase.render).toMatch(strToRegExp(`return _m(0,false,false)`))
     expect(inputCase.staticRenderFns).toMatch(strToRegExp(`_c('div',[_c('input'),_c('text',[_v("abc")])])`))
     expect(inputCase.errors).toEqual([])
 
     const imageCase = compile(`<div><image src="path"><text>abc</text></div>`)
-    expect(imageCase.render).toMatch(strToRegExp(`return _m(0)`))
+    expect(imageCase.render).toMatch(strToRegExp(`return _m(0,false,false)`))
     expect(imageCase.staticRenderFns).toMatch(strToRegExp(`_c('div',[_c('image',{attrs:{"src":"path"}}),_c('text',[_v("abc")])])`))
     expect(imageCase.errors).toEqual([])
 
@@ -54,7 +54,7 @@ describe('compile basic', () => {
         </div>
       </div>
     `)
-    expect(complexCase.render).toMatch(strToRegExp(`return _m(0)`))
+    expect(complexCase.render).toMatch(strToRegExp(`return _m(0,false,false)`))
     expect(complexCase.staticRenderFns).toMatch(strToRegExp(`_c('image',{attrs:{"src":"path"}}),_c('image'),_c('div'`))
     expect(complexCase.staticRenderFns).toMatch(strToRegExp(`_c('div',[_c('embed'),_c('text',[_v("start")]),_c('input',{attrs:{"type":"text"}}),_c('input',{attrs:{"type":"url"}}),_c('text',[_v("end")])]`))
     expect(complexCase.errors).toEqual([])

From 0496115c55b4539d1901ce409a457f8b9fbc20ce Mon Sep 17 00:00:00 2001
From: Pranay Aryal <drpranayaryal@gmail.com>
Date: Mon, 13 Nov 2017 11:47:04 -0500
Subject: [PATCH 227/911] chore: live link for Vue examples under
 'Documentation' (#7026)

Give link for vue examples
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 392467b06ee..6c64116bd94 100644
--- a/README.md
+++ b/README.md
@@ -197,7 +197,7 @@ Vue.js supports all browsers that are [ES5-compliant](http://kangax.github.io/co
 
 ## Documentation
 
-To check out live examples and docs, visit [vuejs.org](https://vuejs.org).
+To check out [live examples](https://vuejs.org/v2/examples/) and docs, visit [vuejs.org](https://vuejs.org).
 
 ## Questions
 

From c2b1cfe9ccd08835f2d99f6ce60f67b4de55187f Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 13 Nov 2017 10:48:41 -0600
Subject: [PATCH 228/911] fix(weex): donot rethrow the captured error on weex
 platform (#7024)

---
 src/core/util/env.js   | 7 +++++--
 src/core/util/error.js | 4 ++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index 30767958657..41d8b5c005a 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -1,16 +1,19 @@
 /* @flow */
+declare var WXEnvironment: any;
 
 // can we use __proto__?
 export const hasProto = '__proto__' in {}
 
 // Browser environment sniffing
 export const inBrowser = typeof window !== 'undefined'
+export const inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform
+export const weexPlatform = inWeex && WXEnvironment.platform.toLowerCase()
 export const UA = inBrowser && window.navigator.userAgent.toLowerCase()
 export const isIE = UA && /msie|trident/.test(UA)
 export const isIE9 = UA && UA.indexOf('msie 9.0') > 0
 export const isEdge = UA && UA.indexOf('edge/') > 0
-export const isAndroid = UA && UA.indexOf('android') > 0
-export const isIOS = UA && /iphone|ipad|ipod|ios/.test(UA)
+export const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android')
+export const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios')
 export const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge
 
 // Firefox has a "watch" function on Object.prototype...
diff --git a/src/core/util/error.js b/src/core/util/error.js
index abf5b6a5aa1..b7d05a6d7c6 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -2,7 +2,7 @@
 
 import config from '../config'
 import { warn } from './debug'
-import { inBrowser } from './env'
+import { inBrowser, inWeex } from './env'
 
 export function handleError (err: Error, vm: any, info: string) {
   if (vm) {
@@ -40,7 +40,7 @@ function logError (err, vm, info) {
     warn(`Error in ${info}: "${err.toString()}"`, vm)
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err)
   } else {
     throw err

From 7cf188e134fe7bfc9e8a16b763fb85b18eff1eac Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 13 Nov 2017 10:49:05 -0600
Subject: [PATCH 229/911] feat(weex): support batch update styles and
 attributes (#7046)

* feat(weex): support batch update styles

* feat(weex): support batch update attributes
---
 src/platforms/weex/runtime/modules/attrs.js   | 13 +++++++++--
 src/platforms/weex/runtime/modules/class.js   |  8 +++++--
 src/platforms/weex/runtime/modules/style.js   | 22 ++++++++++++++++---
 .../weex/runtime/modules/transition.js        |  8 +++++--
 4 files changed, 42 insertions(+), 9 deletions(-)

diff --git a/src/platforms/weex/runtime/modules/attrs.js b/src/platforms/weex/runtime/modules/attrs.js
index 39d532d84d7..1b6185cae70 100755
--- a/src/platforms/weex/runtime/modules/attrs.js
+++ b/src/platforms/weex/runtime/modules/attrs.js
@@ -15,18 +15,27 @@ function updateAttrs (oldVnode: VNodeWithData, vnode: VNodeWithData) {
     attrs = vnode.data.attrs = extend({}, attrs)
   }
 
+  const supportBatchUpdate = typeof elm.setAttrs === 'function'
+  const batchedAttrs = {}
   for (key in attrs) {
     cur = attrs[key]
     old = oldAttrs[key]
     if (old !== cur) {
-      elm.setAttr(key, cur)
+      supportBatchUpdate
+        ? (batchedAttrs[key] = cur)
+        : elm.setAttr(key, cur)
     }
   }
   for (key in oldAttrs) {
     if (attrs[key] == null) {
-      elm.setAttr(key)
+      supportBatchUpdate
+        ? (batchedAttrs[key] = undefined)
+        : elm.setAttr(key)
     }
   }
+  if (supportBatchUpdate) {
+    elm.setAttrs(batchedAttrs)
+  }
 }
 
 export default {
diff --git a/src/platforms/weex/runtime/modules/class.js b/src/platforms/weex/runtime/modules/class.js
index b1e3b188561..8d9d51ec603 100755
--- a/src/platforms/weex/runtime/modules/class.js
+++ b/src/platforms/weex/runtime/modules/class.js
@@ -36,8 +36,12 @@ function updateClass (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   }
 
   const style = getStyle(oldClassList, classList, ctx)
-  for (const key in style) {
-    el.setStyle(key, style[key])
+  if (typeof el.setStyles === 'function') {
+    el.setStyles(style)
+  } else {
+    for (const key in style) {
+      el.setStyle(key, style[key])
+    }
   }
 }
 
diff --git a/src/platforms/weex/runtime/modules/style.js b/src/platforms/weex/runtime/modules/style.js
index 9c60fd1aaa4..bdabd17b7a9 100755
--- a/src/platforms/weex/runtime/modules/style.js
+++ b/src/platforms/weex/runtime/modules/style.js
@@ -11,11 +11,18 @@ function createStyle (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   }
   const elm = vnode.elm
   const staticStyle = vnode.data.staticStyle
+  const supportBatchUpdate = typeof elm.setStyles === 'function'
+  const batchedStyles = {}
   for (const name in staticStyle) {
     if (staticStyle[name]) {
-      elm.setStyle(normalize(name), staticStyle[name])
+      supportBatchUpdate
+        ? (batchedStyles[normalize(name)] = staticStyle[name])
+        : elm.setStyle(normalize(name), staticStyle[name])
     }
   }
+  if (supportBatchUpdate) {
+    elm.setStyles(batchedStyles)
+  }
   updateStyle(oldVnode, vnode)
 }
 
@@ -41,14 +48,23 @@ function updateStyle (oldVnode: VNodeWithData, vnode: VNodeWithData) {
     style = vnode.data.style = extend({}, style)
   }
 
+  const supportBatchUpdate = typeof elm.setStyles === 'function'
+  const batchedStyles = {}
   for (name in oldStyle) {
     if (!style[name]) {
-      elm.setStyle(normalize(name), '')
+      supportBatchUpdate
+        ? (batchedStyles[normalize(name)] = '')
+        : elm.setStyle(normalize(name), '')
     }
   }
   for (name in style) {
     cur = style[name]
-    elm.setStyle(normalize(name), cur)
+    supportBatchUpdate
+      ? (batchedStyles[normalize(name)] = cur)
+      : elm.setStyle(normalize(name), cur)
+  }
+  if (supportBatchUpdate) {
+    elm.setStyles(batchedStyles)
   }
 }
 
diff --git a/src/platforms/weex/runtime/modules/transition.js b/src/platforms/weex/runtime/modules/transition.js
index 86e3f6d9941..e474c2b3e9b 100644
--- a/src/platforms/weex/runtime/modules/transition.js
+++ b/src/platforms/weex/runtime/modules/transition.js
@@ -119,8 +119,12 @@ function enter (_, vnode) {
   beforeEnterHook && beforeEnterHook(el)
 
   if (startState) {
-    for (const key in startState) {
-      el.setStyle(key, startState[key])
+    if (typeof el.setStyles === 'function') {
+      el.setStyles(startState)
+    } else {
+      for (const key in startState) {
+        el.setStyle(key, startState[key])
+      }
     }
   }
 

From daed1e73557d57df244ad8d46c9afff7208c9a2d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 13 Nov 2017 12:55:56 -0500
Subject: [PATCH 230/911] fix: normlaize @click.right and @click.middle

fix #7020
---
 src/compiler/codegen/events.js           | 13 +---------
 src/compiler/helpers.js                  | 33 +++++++++++++++++++-----
 src/core/util/lang.js                    |  2 --
 src/shared/util.js                       |  2 ++
 test/unit/features/directives/on.spec.js | 22 +++++++++++++---
 5 files changed, 48 insertions(+), 24 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index b15d93160d3..7bfe5ec1c5f 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -41,18 +41,7 @@ export function genHandlers (
 ): string {
   let res = isNative ? 'nativeOn:{' : 'on:{'
   for (const name in events) {
-    const handler = events[name]
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if (process.env.NODE_ENV !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        `Use "contextmenu" instead of "click.right" since right clicks ` +
-        `do not actually fire "click" events.`
-      )
-    }
-    res += `"${name}":${genHandler(name, handler)},`
+    res += `"${name}":${genHandler(name, events[name])},`
   }
   return res.slice(0, -1) + '}'
 }
diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 5c844bd42e0..1349fa364f4 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import { emptyObject } from 'shared/util'
 import { parseFilters } from './parser/filter-parser'
 
 export function baseWarn (msg: string) {
@@ -42,39 +43,59 @@ export function addHandler (
   important?: boolean,
   warn?: Function
 ) {
+  modifiers = modifiers || emptyObject
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     process.env.NODE_ENV !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     )
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture
     name = '!' + name // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once
     name = '~' + name // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive
     name = '&' + name // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu'
+      delete modifiers.right
+    } else if (modifiers.middle) {
+      name = 'mouseup'
+    }
+  }
+
   let events
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native
     events = el.nativeEvents || (el.nativeEvents = {})
   } else {
     events = el.events || (el.events = {})
   }
-  const newHandler = { value, modifiers }
+
+  const newHandler: any = { value }
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers
+  }
+
   const handlers = events[name]
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
diff --git a/src/core/util/lang.js b/src/core/util/lang.js
index 3be32d1076b..96b8219a045 100644
--- a/src/core/util/lang.js
+++ b/src/core/util/lang.js
@@ -1,7 +1,5 @@
 /* @flow */
 
-export const emptyObject = Object.freeze({})
-
 /**
  * Check if a string starts with $ or _
  */
diff --git a/src/shared/util.js b/src/shared/util.js
index 353b9829980..fe1c025e494 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -1,5 +1,7 @@
 /* @flow */
 
+export const emptyObject = Object.freeze({})
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 export function isUndef (v: any): boolean %checks {
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index a32bcaab2da..4ef3c699fe0 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -693,13 +693,27 @@ describe('Directive v-on', () => {
     expect(prevented).toBe(true)
   })
 
-  it('should warn click.right', () => {
-    new Vue({
+  it('should transform click.right to contextmenu', () => {
+    const spy = jasmine.createSpy('click.right')
+    const vm = new Vue({
       template: `<div @click.right="foo"></div>`,
-      methods: { foo () {} }
+      methods: { foo: spy }
     }).$mount()
 
-    expect(`Use "contextmenu" instead`).toHaveBeenWarned()
+    triggerEvent(vm.$el, 'contextmenu')
+    expect(spy).toHaveBeenCalled()
+  })
+
+  it('should transform click.middle to mouseup', () => {
+    const spy = jasmine.createSpy('click.middle')
+    const vm = new Vue({
+      template: `<div @click.middle="foo"></div>`,
+      methods: { foo: spy }
+    }).$mount()
+    triggerEvent(vm.$el, 'mouseup', e => { e.button = 0 })
+    expect(spy).not.toHaveBeenCalled()
+    triggerEvent(vm.$el, 'mouseup', e => { e.button = 1 })
+    expect(spy).toHaveBeenCalled()
   })
 
   it('object syntax (no argument)', () => {

From df82aeb0bf7454ac99d403000a1ac993e8d8d4de Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 13 Nov 2017 15:52:01 -0500
Subject: [PATCH 231/911] fix: should warn unknown components during hydration

fix #6998
---
 src/core/vdom/patch.js                        | 67 ++++++++++---------
 .../unit/modules/vdom/patch/hydration.spec.js | 11 +++
 2 files changed, 48 insertions(+), 30 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 1a764f20cf8..1ad425e00a8 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -103,7 +103,23 @@ export function createPatchFunction (backend) {
     }
   }
 
-  let inPre = 0
+  function isUnknownElement (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(ignore => {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  let creatingElmInVPre = 0
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -116,21 +132,9 @@ export function createPatchFunction (backend) {
     if (isDef(tag)) {
       if (process.env.NODE_ENV !== 'production') {
         if (data && data.pre) {
-          inPre++
+          creatingElmInVPre++
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(ignore => {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -172,7 +176,7 @@ export function createPatchFunction (backend) {
       }
 
       if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        inPre--
+        creatingElmInVPre--
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text)
@@ -527,25 +531,28 @@ export function createPatchFunction (backend) {
     }
   }
 
-  let bailed = false
+  let hydrationBailed = false
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
   const isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key')
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    let i
+    const { tag, data, children } = vnode
+    inVPre = inVPre || (data && data.pre)
+    vnode.elm = elm
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm
       vnode.isAsyncPlaceholder = true
       return true
     }
+    // assert node match
     if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm
-    const { tag, data, children } = vnode
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) i(vnode, true /* hydrating */)
       if (isDef(i = vnode.componentInstance)) {
@@ -566,9 +573,9 @@ export function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true
+                hydrationBailed = true
                 console.warn('Parent: ', elm)
                 console.warn('server innerHTML: ', i)
                 console.warn('client innerHTML: ', elm.innerHTML)
@@ -580,7 +587,7 @@ export function createPatchFunction (backend) {
             let childrenMatch = true
             let childNode = elm.firstChild
             for (let i = 0; i < children.length; i++) {
-              if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false
                 break
               }
@@ -592,9 +599,9 @@ export function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true
+                hydrationBailed = true
                 console.warn('Parent: ', elm)
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children)
               }
@@ -617,10 +624,10 @@ export function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
diff --git a/test/unit/modules/vdom/patch/hydration.spec.js b/test/unit/modules/vdom/patch/hydration.spec.js
index 42fb337d55a..6b9df2354f6 100644
--- a/test/unit/modules/vdom/patch/hydration.spec.js
+++ b/test/unit/modules/vdom/patch/hydration.spec.js
@@ -150,6 +150,17 @@ describe('vdom patch: hydration', () => {
     expect('not matching server-rendered content').toHaveBeenWarned()
   })
 
+  it('should warn failed hydration when component is not properly registered', () => {
+    const dom = createMockSSRDOM('<div><foo></foo></div>')
+
+    new Vue({
+      template: '<div><foo></foo></div>'
+    }).$mount(dom)
+
+    expect('not matching server-rendered content').toHaveBeenWarned()
+    expect('Unknown custom element: <foo>').toHaveBeenWarned()
+  })
+
   it('should overwrite textNodes in the correct position but with mismatching text without warning', () => {
     const dom = createMockSSRDOM('<div><span>foo</span></div>')
 

From 13196b25b8a0a84b3936982177195d2e04f13f79 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 13 Nov 2017 21:43:20 -0500
Subject: [PATCH 232/911] fix: clone slot nodes for render fn usage as well

fix #7041
---
 .../instance/render-helpers/resolve-slots.js  |  2 +-
 src/core/instance/render.js                   |  4 +++-
 .../web/runtime/components/transition.js      |  2 +-
 .../modules/vdom/patch/edge-cases.spec.js     | 21 +++++++++++++++++++
 4 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 629177e4771..024fbbff7a3 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -44,7 +44,7 @@ export function resolveSlots (
 }
 
 function isWhitespace (node: VNode): boolean {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 export function resolveScopedSlots (
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 5b7df25c8dd..f83dc94fff7 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -66,7 +66,9 @@ export function renderMixin (Vue: Class<Component>) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (const key in vm.$slots) {
         const slot = vm.$slots[key]
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */)
         }
       }
diff --git a/src/platforms/web/runtime/components/transition.js b/src/platforms/web/runtime/components/transition.js
index 857c88f35e5..cb998aea470 100644
--- a/src/platforms/web/runtime/components/transition.js
+++ b/src/platforms/web/runtime/components/transition.js
@@ -82,7 +82,7 @@ export default {
   abstract: true,
 
   render (h: Function) {
-    let children: ?Array<VNode> = this.$options._renderChildren
+    let children: any = this.$slots.default
     if (!children) {
       return
     }
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 7e140534173..8793da2156d 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -246,4 +246,25 @@ describe('vdom patch: edge cases', () => {
     vm.$el.children[0].click()
     expect(spy).toHaveBeenCalled()
   })
+
+  // #7041
+  it('transition children with only deep bindings should be patched on update', done => {
+    const vm = new Vue({
+      template: `
+      <div>
+        <transition>
+          <div :style="style"></div>
+        </transition>
+      </div>
+      `,
+      data: () => ({
+        style: { color: 'red' }
+      })
+    }).$mount()
+    expect(vm.$el.children[0].style.color).toBe('red')
+    vm.style.color = 'green'
+    waitForUpdate(() => {
+      expect(vm.$el.children[0].style.color).toBe('green')
+    }).then(done)
+  })
 })

From a3246fd8545dbe66f37da16d7ff68597c0f025e6 Mon Sep 17 00:00:00 2001
From: David Nuescheler <david@nuescheler.ch>
Date: Tue, 14 Nov 2017 13:08:45 -0800
Subject: [PATCH 233/911] chore: closing </a> after chat (#7059)

oversight, chat link was left open
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6c64116bd94..bae6837b164 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
   <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/dm/vue.svg" alt="Downloads"></a>
   <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/v/vue.svg" alt="Version"></a>
   <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/l/vue.svg" alt="License"></a>
-  <a href="https://chat.vuejs.org/"><img src="https://img.shields.io/badge/chat-on%20discord-7289da.svg" alt="Chat">
+  <a href="https://chat.vuejs.org/"><img src="https://img.shields.io/badge/chat-on%20discord-7289da.svg" alt="Chat"></a>
   <br>
   <a href="https://saucelabs.com/u/vuejs"><img src="https://saucelabs.com/browser-matrix/vuejs.svg" alt="Sauce Test Status"></a>
 </p>

From 45d7ba842917a075d6cb2563c78210e3b9210a58 Mon Sep 17 00:00:00 2001
From: Richard Musiol <mail@richard-musiol.de>
Date: Thu, 16 Nov 2017 15:29:26 +0100
Subject: [PATCH 234/911] fix(transition): fix out-in transition getting stuck
 with v-if (#7023)

fix #6687
---
 src/platforms/web/runtime/components/transition.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/components/transition.js b/src/platforms/web/runtime/components/transition.js
index cb998aea470..6111d8cbbcb 100644
--- a/src/platforms/web/runtime/components/transition.js
+++ b/src/platforms/web/runtime/components/transition.js
@@ -161,7 +161,9 @@ export default {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!

From 6b799190a57b73c4b3d6c31f4009cda74a1a6184 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 16 Nov 2017 10:09:15 -0500
Subject: [PATCH 235/911] test: add test case for #6687 + fix lingering comment
 node

---
 .../web/runtime/modules/transition.js         |  4 +-
 .../features/transition/transition.spec.js    | 42 +++++++++++++++++++
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/modules/transition.js b/src/platforms/web/runtime/modules/transition.js
index 9ff1c1d2f70..0d099c9947f 100644
--- a/src/platforms/web/runtime/modules/transition.js
+++ b/src/platforms/web/runtime/modules/transition.js
@@ -181,12 +181,12 @@ export function leave (vnode: VNodeWithData, rm: Function) {
   }
 
   const data = resolveTransition(vnode.data.transition)
-  if (isUndef(data)) {
+  if (isUndef(data) || el.nodeType !== 1) {
     return rm()
   }
 
   /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
+  if (isDef(el._leaveCb)) {
     return
   }
 
diff --git a/test/unit/features/transition/transition.spec.js b/test/unit/features/transition/transition.spec.js
index 1f2f2140422..5e4dcc7eac3 100644
--- a/test/unit/features/transition/transition.spec.js
+++ b/test/unit/features/transition/transition.spec.js
@@ -1081,5 +1081,47 @@ if (!isIE9) {
         }).then(done)
       })
     })
+
+    // #6687
+    it('transition on child components with empty root node', done => {
+      const vm = new Vue({
+        template: `
+          <div>
+            <transition mode="out-in">
+              <component class="test" :is="view"></component>
+            </transition>
+          </div>
+        `,
+        data: { view: 'one' },
+        components: {
+          'one': {
+            template: '<div v-if="false">one</div>'
+          },
+          'two': {
+            template: '<div>two</div>'
+          }
+        }
+      }).$mount(el)
+
+      // should not apply transition on initial render by default
+      expect(vm.$el.innerHTML).toBe('<!---->')
+      vm.view = 'two'
+      waitForUpdate(() => {
+        expect(vm.$el.innerHTML).toBe('<div class="test v-enter v-enter-active">two</div>')
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test v-enter-active v-enter-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children[0].className).toBe('test')
+        vm.view = 'one'
+      }).then(() => {
+        // incoming comment node is appended instantly because it doesn't have
+        // data and therefore doesn't go through the transition module.
+        expect(vm.$el.innerHTML).toBe('<div class="test v-leave v-leave-active">two</div><!---->')
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test v-leave-active v-leave-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.innerHTML).toBe('<!---->')
+      }).then(done)
+    })
   })
 }

From 5db86b4e94857fdde3ae6b71e24da637bc116baa Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 16 Nov 2017 11:19:52 -0500
Subject: [PATCH 236/911] fix(ssr): ensure hydrated class & style bindings are
 reactive

fix #7063
---
 src/core/observer/traverse.js                 | 39 +++++++++++++++
 src/core/observer/watcher.js                  | 47 +++----------------
 src/core/util/env.js                          |  6 +--
 src/core/vdom/patch.js                        | 11 ++++-
 .../unit/modules/vdom/patch/hydration.spec.js | 35 ++++++++++++++
 5 files changed, 94 insertions(+), 44 deletions(-)
 create mode 100644 src/core/observer/traverse.js

diff --git a/src/core/observer/traverse.js b/src/core/observer/traverse.js
new file mode 100644
index 00000000000..ca6c314eb76
--- /dev/null
+++ b/src/core/observer/traverse.js
@@ -0,0 +1,39 @@
+/* @flow */
+
+import { _Set as Set, isObject } from '../util/index'
+import type { SimpleSet } from '../util/index'
+
+const seenObjects = new Set()
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+export function traverse (val: any) {
+  _traverse(val, seenObjects)
+  seenObjects.clear()
+}
+
+function _traverse (val: any, seen: SimpleSet) {
+  let i, keys
+  const isA = Array.isArray(val)
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    const depId = val.__ob__.dep.id
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId)
+  }
+  if (isA) {
+    i = val.length
+    while (i--) _traverse(val[i], seen)
+  } else {
+    keys = Object.keys(val)
+    i = keys.length
+    while (i--) _traverse(val[keys[i]], seen)
+  }
+}
diff --git a/src/core/observer/watcher.js b/src/core/observer/watcher.js
index 40253149c34..3727bd53fb9 100644
--- a/src/core/observer/watcher.js
+++ b/src/core/observer/watcher.js
@@ -1,8 +1,5 @@
 /* @flow */
 
-import { queueWatcher } from './scheduler'
-import Dep, { pushTarget, popTarget } from './dep'
-
 import {
   warn,
   remove,
@@ -12,7 +9,11 @@ import {
   handleError
 } from '../util/index'
 
-import type { ISet } from '../util/index'
+import { traverse } from './traverse'
+import { queueWatcher } from './scheduler'
+import Dep, { pushTarget, popTarget } from './dep'
+
+import type { SimpleSet } from '../util/index'
 
 let uid = 0
 
@@ -34,8 +35,8 @@ export default class Watcher {
   active: boolean;
   deps: Array<Dep>;
   newDeps: Array<Dep>;
-  depIds: ISet;
-  newDepIds: ISet;
+  depIds: SimpleSet;
+  newDepIds: SimpleSet;
   getter: Function;
   value: any;
 
@@ -233,37 +234,3 @@ export default class Watcher {
     }
   }
 }
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-const seenObjects = new Set()
-function traverse (val: any) {
-  seenObjects.clear()
-  _traverse(val, seenObjects)
-}
-
-function _traverse (val: any, seen: ISet) {
-  let i, keys
-  const isA = Array.isArray(val)
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    const depId = val.__ob__.dep.id
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId)
-  }
-  if (isA) {
-    i = val.length
-    while (i--) _traverse(val[i], seen)
-  } else {
-    keys = Object.keys(val)
-    i = keys.length
-    while (i--) _traverse(val[keys[i]], seen)
-  }
-}
diff --git a/src/core/util/env.js b/src/core/util/env.js
index 41d8b5c005a..c2e80df6cd2 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -69,7 +69,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = class Set implements ISet {
+  _Set = class Set implements SimpleSet {
     set: Object;
     constructor () {
       this.set = Object.create(null)
@@ -86,11 +86,11 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   }
 }
 
-interface ISet {
+interface SimpleSet {
   has(key: string | number): boolean;
   add(key: string | number): mixed;
   clear(): void;
 }
 
 export { _Set }
-export type { ISet }
+export type { SimpleSet }
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 1ad425e00a8..f8f28585429 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -14,6 +14,7 @@ import VNode from './vnode'
 import config from '../config'
 import { SSR_ATTR } from 'shared/constants'
 import { registerRef } from './modules/ref'
+import { traverse } from '../observer/traverse'
 import { activeInstance } from '../instance/lifecycle'
 import { isTextInputType } from 'web/util/element'
 
@@ -534,7 +535,9 @@ export function createPatchFunction (backend) {
   let hydrationBailed = false
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  const isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key')
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  const isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key')
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
   function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
@@ -611,12 +614,18 @@ export function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        let fullInvoke = false
         for (const key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true
             invokeCreateHooks(vnode, insertedVnodeQueue)
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class'])
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text
diff --git a/test/unit/modules/vdom/patch/hydration.spec.js b/test/unit/modules/vdom/patch/hydration.spec.js
index 6b9df2354f6..930ad47cc81 100644
--- a/test/unit/modules/vdom/patch/hydration.spec.js
+++ b/test/unit/modules/vdom/patch/hydration.spec.js
@@ -353,4 +353,39 @@ describe('vdom patch: hydration', () => {
     }).$mount(dom)
     expect('not matching server-rendered content').not.toHaveBeenWarned()
   })
+
+  // #7063
+  it('should properly initialize dynamic style bindings for future updates', done => {
+    const dom = createMockSSRDOM('<div style="padding-left:0px"></div>')
+
+    const vm = new Vue({
+      data: {
+        style: { paddingLeft: '0px' }
+      },
+      template: `<div><div :style="style"></div></div>`
+    }).$mount(dom)
+
+    // should update
+    vm.style.paddingLeft = '100px'
+    waitForUpdate(() => {
+      expect(dom.children[0].style.paddingLeft).toBe('100px')
+    }).then(done)
+  })
+
+  it('should properly initialize dynamic class bindings for future updates', done => {
+    const dom = createMockSSRDOM('<div class="foo bar"></div>')
+
+    const vm = new Vue({
+      data: {
+        cls: [{ foo: true }, 'bar']
+      },
+      template: `<div><div :class="cls"></div></div>`
+    }).$mount(dom)
+
+    // should update
+    vm.cls[0].foo = false
+    waitForUpdate(() => {
+      expect(dom.children[0].className).toBe('bar')
+    }).then(done)
+  })
 })

From 9edcc6b6c7612efc15e4bfc5079279533190a2f2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 16 Nov 2017 14:53:22 -0500
Subject: [PATCH 237/911] build: build 2.5.4

---
 dist/vue.common.js                          | 255 ++++++++++++--------
 dist/vue.esm.js                             | 255 ++++++++++++--------
 dist/vue.js                                 | 255 ++++++++++++--------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  | 204 +++++++++-------
 dist/vue.runtime.esm.js                     | 204 +++++++++-------
 dist/vue.runtime.js                         | 204 +++++++++-------
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 156 +++++++-----
 packages/vue-server-renderer/build.js       | 156 +++++++-----
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  62 +++--
 packages/vue-template-compiler/build.js     |  62 +++--
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 1056 insertions(+), 769 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 5527db3e248..85b4d693e72 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -7,6 +7,8 @@
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -424,8 +426,6 @@ var config = ({
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -466,17 +466,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1691,7 +1694,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -1915,6 +1918,43 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+/*  */
+
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -2508,7 +2548,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -3187,40 +3227,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 var sharedPropertyDefinition = {
@@ -3798,12 +3804,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3813,7 +3826,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4396,7 +4409,9 @@ function renderMixin (Vue) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
         var slot = vm.$slots[key];
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */);
         }
       }
@@ -4951,7 +4966,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.3';
+Vue$3.version = '2.5.4';
 
 /*  */
 
@@ -5378,7 +5393,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  var inPre = 0;
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -5391,21 +5422,9 @@ function createPatchFunction (backend) {
     if (isDef(tag)) {
       if (process.env.NODE_ENV !== 'production') {
         if (data && data.pre) {
-          inPre++;
+          creatingElmInVPre++;
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(function (ignore) {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -5429,7 +5448,7 @@ function createPatchFunction (backend) {
       }
 
       if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        inPre--;
+        creatingElmInVPre--;
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text);
@@ -5784,27 +5803,32 @@ function createPatchFunction (backend) {
     }
   }
 
-  var bailed = false;
+  var hydrationBailed = false;
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
       vnode.isAsyncPlaceholder = true;
       return true
     }
+    // assert node match
     if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
       if (isDef(i = vnode.componentInstance)) {
@@ -5825,9 +5849,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('server innerHTML: ', i);
                 console.warn('client innerHTML: ', elm.innerHTML);
@@ -5839,7 +5863,7 @@ function createPatchFunction (backend) {
             var childrenMatch = true;
             var childNode = elm.firstChild;
             for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false;
                 break
               }
@@ -5851,9 +5875,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
               }
@@ -5863,12 +5887,18 @@ function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        var fullInvoke = false;
         for (var key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true;
             invokeCreateHooks(vnode, insertedVnodeQueue);
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text;
@@ -5876,10 +5906,10 @@ function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
@@ -6367,39 +6397,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     process.env.NODE_ENV !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -7493,12 +7543,12 @@ function leave (vnode, rm) {
   }
 
   var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
+  if (isUndef(data) || el.nodeType !== 1) {
     return rm()
   }
 
   /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
+  if (isDef(el._leaveCb)) {
     return
   }
 
@@ -7953,7 +8003,7 @@ var Transition = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$options._renderChildren;
+    var children = this.$slots.default;
     if (!children) {
       return
     }
@@ -8032,7 +8082,9 @@ var Transition = {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
@@ -9672,18 +9724,7 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if (process.env.NODE_ENV !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
@@ -9850,10 +9891,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -9879,7 +9920,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index b623498876a..606dfbebca1 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,10 +1,12 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -422,8 +424,6 @@ var config = ({
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -464,17 +464,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1689,7 +1692,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -1913,6 +1916,43 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+/*  */
+
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -2506,7 +2546,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -3185,40 +3225,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 var sharedPropertyDefinition = {
@@ -3796,12 +3802,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3811,7 +3824,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4394,7 +4407,9 @@ function renderMixin (Vue) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
         var slot = vm.$slots[key];
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */);
         }
       }
@@ -4949,7 +4964,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.3';
+Vue$3.version = '2.5.4';
 
 /*  */
 
@@ -5376,7 +5391,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  var inPre = 0;
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -5389,21 +5420,9 @@ function createPatchFunction (backend) {
     if (isDef(tag)) {
       if (process.env.NODE_ENV !== 'production') {
         if (data && data.pre) {
-          inPre++;
+          creatingElmInVPre++;
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(function (ignore) {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -5427,7 +5446,7 @@ function createPatchFunction (backend) {
       }
 
       if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        inPre--;
+        creatingElmInVPre--;
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text);
@@ -5782,27 +5801,32 @@ function createPatchFunction (backend) {
     }
   }
 
-  var bailed = false;
+  var hydrationBailed = false;
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
       vnode.isAsyncPlaceholder = true;
       return true
     }
+    // assert node match
     if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
       if (isDef(i = vnode.componentInstance)) {
@@ -5823,9 +5847,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('server innerHTML: ', i);
                 console.warn('client innerHTML: ', elm.innerHTML);
@@ -5837,7 +5861,7 @@ function createPatchFunction (backend) {
             var childrenMatch = true;
             var childNode = elm.firstChild;
             for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false;
                 break
               }
@@ -5849,9 +5873,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
               }
@@ -5861,12 +5885,18 @@ function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        var fullInvoke = false;
         for (var key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true;
             invokeCreateHooks(vnode, insertedVnodeQueue);
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text;
@@ -5874,10 +5904,10 @@ function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
@@ -6365,39 +6395,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     process.env.NODE_ENV !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -7491,12 +7541,12 @@ function leave (vnode, rm) {
   }
 
   var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
+  if (isUndef(data) || el.nodeType !== 1) {
     return rm()
   }
 
   /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
+  if (isDef(el._leaveCb)) {
     return
   }
 
@@ -7951,7 +8001,7 @@ var Transition = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$options._renderChildren;
+    var children = this.$slots.default;
     if (!children) {
       return
     }
@@ -8030,7 +8080,9 @@ var Transition = {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
@@ -9670,18 +9722,7 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if (process.env.NODE_ENV !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
@@ -9848,10 +9889,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -9877,7 +9918,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
diff --git a/dist/vue.js b/dist/vue.js
index 0f3458d64bb..2c45bd95f00 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -11,6 +11,8 @@
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -428,8 +430,6 @@ var config = ({
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -470,17 +470,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1695,7 +1698,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -1919,6 +1922,43 @@ var initProxy;
 
 /*  */
 
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+/*  */
+
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -2510,7 +2550,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -3187,40 +3227,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 var sharedPropertyDefinition = {
@@ -3794,12 +3800,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3809,7 +3822,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4389,7 +4402,9 @@ function renderMixin (Vue) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
         var slot = vm.$slots[key];
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */);
         }
       }
@@ -4940,7 +4955,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.3';
+Vue$3.version = '2.5.4';
 
 /*  */
 
@@ -5367,7 +5382,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  var inPre = 0;
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -5380,21 +5411,9 @@ function createPatchFunction (backend) {
     if (isDef(tag)) {
       {
         if (data && data.pre) {
-          inPre++;
+          creatingElmInVPre++;
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(function (ignore) {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -5418,7 +5437,7 @@ function createPatchFunction (backend) {
       }
 
       if ("development" !== 'production' && data && data.pre) {
-        inPre--;
+        creatingElmInVPre--;
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text);
@@ -5773,27 +5792,32 @@ function createPatchFunction (backend) {
     }
   }
 
-  var bailed = false;
+  var hydrationBailed = false;
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
       vnode.isAsyncPlaceholder = true;
       return true
     }
+    // assert node match
     {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
       if (isDef(i = vnode.componentInstance)) {
@@ -5814,9 +5838,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if ("development" !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('server innerHTML: ', i);
                 console.warn('client innerHTML: ', elm.innerHTML);
@@ -5828,7 +5852,7 @@ function createPatchFunction (backend) {
             var childrenMatch = true;
             var childNode = elm.firstChild;
             for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false;
                 break
               }
@@ -5840,9 +5864,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if ("development" !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
               }
@@ -5852,12 +5876,18 @@ function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        var fullInvoke = false;
         for (var key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true;
             invokeCreateHooks(vnode, insertedVnodeQueue);
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text;
@@ -5865,10 +5895,10 @@ function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
@@ -6356,39 +6386,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     "development" !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -7482,12 +7532,12 @@ function leave (vnode, rm) {
   }
 
   var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
+  if (isUndef(data) || el.nodeType !== 1) {
     return rm()
   }
 
   /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
+  if (isDef(el._leaveCb)) {
     return
   }
 
@@ -7942,7 +7992,7 @@ var Transition = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$options._renderChildren;
+    var children = this.$slots.default;
     if (!children) {
       return
     }
@@ -8021,7 +8071,9 @@ var Transition = {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
@@ -9661,18 +9713,7 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if ("development" !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
@@ -9839,10 +9880,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -9868,7 +9909,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 3bc6c463096..394990ebec4 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Oi.call(e)}function s(e){return"[object RegExp]"===Oi.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}function p(e,t){return Ei.call(e,t)}function v(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}function h(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n}function m(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function y(e,t){for(var n in t)e[n]=t[n];return e}function g(e){for(var t={},n=0;n<e.length;n++)e[n]&&y(t,e[n]);return t}function _(e,t,n){}function b(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var i=Array.isArray(e),a=Array.isArray(t);if(i&&a)return e.length===t.length&&e.every(function(e,n){return b(e,t[n])});if(i||a)return!1;var s=Object.keys(e),c=Object.keys(t);return s.length===c.length&&s.every(function(n){return b(e[n],t[n])})}catch(e){return!1}}function $(e,t){for(var n=0;n<e.length;n++)if(b(e[n],t))return n;return-1}function C(e){var t=!1;return 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r=Wn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};Ot.config.mustUseProp=ca,Ot.config.isReservedTag=ga,Ot.config.isReservedAttr=aa,Ot.config.getTagNamespace=Kt,Ot.config.isUnknownElement=function(e){if(!Ki)return!0;if(ga(e))return!1;if(e=e.toLowerCase(),null!=_a[e])return _a[e];var t=document.createElement(e);return e.indexOf("-")>-1?_a[e]=t.constructor===window.HTMLUnknownElement||t.constructor===window.HTMLElement:_a[e]=/HTMLUnknownElement/.test(t.toString())},y(Ot.options.directives,es),y(Ot.options.components,is),Ot.prototype.__patch__=Ki?Ya:_,Ot.prototype.$mount=function(e,t){return e=e&&Ki?Jt(e):void 0,Se(this,e,t)},Ot.nextTick(function(){Ui.devtools&&ao&&ao.emit("init",Ot)},0);var os,as=/\{\{((?:.|\n)+?)\}\}/g,ss=/[-.*+?^${}()|[\]\/\\]/g,cs=v(function(e){var t=e[0].replace(ss,"\\$&"),n=e[1].replace(ss,"\\$&");return new RegExp(t+"((?:.|\\n)+?)"+n,"g")}),us={staticKeys:["staticClass"],transformNode:function(e,t){t.warn;var n=hn(e,"class");n&&(e.staticClass=JSON.stringify(n));var r=vn(e,"class",!1);r&&(e.classBinding=r)},genData:function(e){var t="";return e.staticClass&&(t+="staticClass:"+e.staticClass+","),e.classBinding&&(t+="class:"+e.classBinding+","),t}},ls={staticKeys:["staticStyle"],transformNode:function(e,t){var n=hn(e,"style");n&&(e.staticStyle=JSON.stringify(Ma(n)));var r=vn(e,"style",!1);r&&(e.styleBinding=r)},genData:function(e){var t="";return e.staticStyle&&(t+="staticStyle:"+e.staticStyle+","),e.styleBinding&&(t+="style:("+e.styleBinding+"),"),t}},fs={decode:function(e){return os=os||document.createElement("div"),os.innerHTML=e,os.textContent}},ds=f("area,base,br,col,embed,frame,hr,img,input,isindex,keygen,link,meta,param,source,track,wbr"),ps=f("colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source"),vs=f("address,article,aside,base,blockquote,body,caption,col,colgroup,dd,details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,title,tr,track"),hs=/^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/,ms="[a-zA-Z_][\\w\\-\\.]*",ys="((?:"+ms+"\\:)?"+ms+")",gs=new RegExp("^<"+ys),_s=/^\s*(\/?)>/,bs=new RegExp("^<\\/"+ys+"[^>]*>"),$s=/^<!DOCTYPE [^>]+>/i,Cs=/^<!--/,ws=/^<!\[/,xs=!1;"x".replace(/x(.)?/g,function(e,t){xs=""===t});var ks,As,Os,Ss,Ts,Es,js,Ns,Ls,Is,Ms,Ds=f("script,style,textarea",!0),Ps={},Fs={"&lt;":"<","&gt;":">","&quot;":'"',"&amp;":"&","&#10;":"\n","&#9;":"\t"},Rs=/&(?:lt|gt|quot|amp);/g,Hs=/&(?:lt|gt|quot|amp|#10|#9);/g,Bs=f("pre,textarea",!0),Us=function(e,t){return e&&Bs(e)&&"\n"===t[0]},Vs=/^@|^v-on:/,zs=/^v-|^@|^:/,Ks=/(.*?)\s+(?:in|of)\s+(.*)/,Js=/\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/,qs=/:(.*)$/,Ws=/^:|^v-bind:/,Gs=/\.[^.]+/g,Zs=v(fs.decode),Xs=/^xmlns:NS\d+/,Ys=/^NS\d+:/,Qs=[us,ls,{preTransformNode:function(e,t){if("input"===e.tag){var n=e.attrsMap;if(n["v-model"]&&(n["v-bind:type"]||n[":type"])){var r=vn(e,"type"),i=hn(e,"v-if",!0),o=i?"&&("+i+")":"",a=null!=hn(e,"v-else",!0),s=hn(e,"v-else-if",!0),c=Vr(e);Sr(c),zr(c,"type","checkbox"),kr(c,t),c.processed=!0,c.if="("+r+")==='checkbox'"+o,Nr(c,{exp:c.if,block:c});var u=Vr(e);hn(u,"v-for",!0),zr(u,"type","radio"),kr(u,t),Nr(c,{exp:"("+r+")==='radio'"+o,block:u});var l=Vr(e);return hn(l,"v-for",!0),zr(l,":type",r),kr(l,t),Nr(c,{exp:i,block:l}),a?c.else=!0:s&&(c.elseif=s),c}}}}],ec={expectHTML:!0,modules:Qs,directives:{model:function(e,t,n){var r=t.value,i=t.modifiers,o=e.tag,a=e.attrsMap.type;if(e.component)return mn(e,r,i),!1;if("select"===o)An(e,r,i);else if("input"===o&&"checkbox"===a)xn(e,r,i);else if("input"===o&&"radio"===a)kn(e,r,i);else if("input"===o||"textarea"===o)On(e,r,i);else if(!Ui.isReservedTag(o))return mn(e,r,i),!1;return!0},text:function(e,t){t.value&&ln(e,"textContent","_s("+t.value+")")},html:function(e,t){t.value&&ln(e,"innerHTML","_s("+t.value+")")}},isPreTag:function(e){return"pre"===e},isUnaryTag:ds,mustUseProp:ca,canBeLeftOpenTag:ps,isReservedTag:ga,getTagNamespace:Kt,staticKeys:function(e){return e.reduce(function(e,t){return e.concat(t.staticKeys||[])},[]).join(",")}(Qs)},tc=v(function(e){return f("type,tag,attrsList,attrsMap,plain,parent,children,attrs"+(e?","+e:""))}),nc=/^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/,rc=/^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/,ic={esc:27,tab:9,enter:13,space:32,up:38,left:37,right:39,down:40,delete:[8,46]},oc=function(e){return"if("+e+")return null;"},ac={stop:"$event.stopPropagation();",prevent:"$event.preventDefault();",self:oc("$event.target !== $event.currentTarget"),ctrl:oc("!$event.ctrlKey"),shift:oc("!$event.shiftKey"),alt:oc("!$event.altKey"),meta:oc("!$event.metaKey"),left:oc("'button' in $event && $event.button !== 0"),middle:oc("'button' in $event && $event.button !== 1"),right:oc("'button' in $event && $event.button !== 2")},sc={on:function(e,t){e.wrapListeners=function(e){return"_g("+e+","+t.value+")"}},bind:function(e,t){e.wrapData=function(n){return"_b("+n+",'"+e.tag+"',"+t.value+","+(t.modifiers&&t.modifiers.prop?"true":"false")+(t.modifiers&&t.modifiers.sync?",true":"")+")"}},cloak:_},cc=function(e){this.options=e,this.warn=e.warn||cn,this.transforms=un(e.modules,"transformCode"),this.dataGenFns=un(e.modules,"genData"),this.directives=y(y({},sc),e.directives);var t=e.isReservedTag||Pi;this.maybeComponent=function(e){return!t(e.tag)},this.onceId=0,this.staticRenderFns=[]},uc=(new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b"),new RegExp("\\b"+"delete,typeof,void".split(",").join("\\s*\\([^\\)]*\\)|\\b")+"\\s*\\([^\\)]*\\)"),function(e){return function(t){function n(n,r){var 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i=uc(r,{shouldDecodeNewlines:lc,shouldDecodeNewlinesForHref:fc,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return pc.call(this,e,t)},Ot.compile=uc,Ot});
\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 23689454263..2a5ca98f094 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -7,6 +7,8 @@
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -420,8 +422,6 @@ var config = ({
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -462,17 +462,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1687,7 +1690,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -1886,6 +1889,43 @@ if (process.env.NODE_ENV !== 'production') {
   };
 }
 
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
 var mark;
 var measure;
 
@@ -2504,7 +2544,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -3183,40 +3223,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 var sharedPropertyDefinition = {
@@ -3794,12 +3800,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3809,7 +3822,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4392,7 +4405,9 @@ function renderMixin (Vue) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
         var slot = vm.$slots[key];
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */);
         }
       }
@@ -4947,7 +4962,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.3';
+Vue$3.version = '2.5.4';
 
 /*  */
 
@@ -5374,7 +5389,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  var inPre = 0;
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -5387,21 +5418,9 @@ function createPatchFunction (backend) {
     if (isDef(tag)) {
       if (process.env.NODE_ENV !== 'production') {
         if (data && data.pre) {
-          inPre++;
+          creatingElmInVPre++;
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(function (ignore) {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -5425,7 +5444,7 @@ function createPatchFunction (backend) {
       }
 
       if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        inPre--;
+        creatingElmInVPre--;
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text);
@@ -5780,27 +5799,32 @@ function createPatchFunction (backend) {
     }
   }
 
-  var bailed = false;
+  var hydrationBailed = false;
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
       vnode.isAsyncPlaceholder = true;
       return true
     }
+    // assert node match
     if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
       if (isDef(i = vnode.componentInstance)) {
@@ -5821,9 +5845,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('server innerHTML: ', i);
                 console.warn('client innerHTML: ', elm.innerHTML);
@@ -5835,7 +5859,7 @@ function createPatchFunction (backend) {
             var childrenMatch = true;
             var childNode = elm.firstChild;
             for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false;
                 break
               }
@@ -5847,9 +5871,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
               }
@@ -5859,12 +5883,18 @@ function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        var fullInvoke = false;
         for (var key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true;
             invokeCreateHooks(vnode, insertedVnodeQueue);
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text;
@@ -5872,10 +5902,10 @@ function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
@@ -6996,12 +7026,12 @@ function leave (vnode, rm) {
   }
 
   var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
+  if (isUndef(data) || el.nodeType !== 1) {
     return rm()
   }
 
   /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
+  if (isDef(el._leaveCb)) {
     return
   }
 
@@ -7456,7 +7486,7 @@ var Transition = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$options._renderChildren;
+    var children = this.$slots.default;
     if (!children) {
       return
     }
@@ -7535,7 +7565,9 @@ var Transition = {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index d6f7bc5a676..d6053a6f174 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,10 +1,12 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -418,8 +420,6 @@ var config = ({
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -460,17 +460,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1685,7 +1688,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -1884,6 +1887,43 @@ if (process.env.NODE_ENV !== 'production') {
   };
 }
 
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
 var mark;
 var measure;
 
@@ -2502,7 +2542,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -3181,40 +3221,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 var sharedPropertyDefinition = {
@@ -3792,12 +3798,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3807,7 +3820,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4390,7 +4403,9 @@ function renderMixin (Vue) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
         var slot = vm.$slots[key];
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */);
         }
       }
@@ -4945,7 +4960,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.3';
+Vue$3.version = '2.5.4';
 
 /*  */
 
@@ -5372,7 +5387,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  var inPre = 0;
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -5385,21 +5416,9 @@ function createPatchFunction (backend) {
     if (isDef(tag)) {
       if (process.env.NODE_ENV !== 'production') {
         if (data && data.pre) {
-          inPre++;
+          creatingElmInVPre++;
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(function (ignore) {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -5423,7 +5442,7 @@ function createPatchFunction (backend) {
       }
 
       if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        inPre--;
+        creatingElmInVPre--;
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text);
@@ -5778,27 +5797,32 @@ function createPatchFunction (backend) {
     }
   }
 
-  var bailed = false;
+  var hydrationBailed = false;
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
       vnode.isAsyncPlaceholder = true;
       return true
     }
+    // assert node match
     if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
       if (isDef(i = vnode.componentInstance)) {
@@ -5819,9 +5843,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('server innerHTML: ', i);
                 console.warn('client innerHTML: ', elm.innerHTML);
@@ -5833,7 +5857,7 @@ function createPatchFunction (backend) {
             var childrenMatch = true;
             var childNode = elm.firstChild;
             for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false;
                 break
               }
@@ -5845,9 +5869,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
               }
@@ -5857,12 +5881,18 @@ function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        var fullInvoke = false;
         for (var key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true;
             invokeCreateHooks(vnode, insertedVnodeQueue);
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text;
@@ -5870,10 +5900,10 @@ function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
@@ -6994,12 +7024,12 @@ function leave (vnode, rm) {
   }
 
   var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
+  if (isUndef(data) || el.nodeType !== 1) {
     return rm()
   }
 
   /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
+  if (isDef(el._leaveCb)) {
     return
   }
 
@@ -7454,7 +7484,7 @@ var Transition = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$options._renderChildren;
+    var children = this.$slots.default;
     if (!children) {
       return
     }
@@ -7533,7 +7563,9 @@ var Transition = {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 10f03be4bb1..f917b7ddb77 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -11,6 +11,8 @@
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -424,8 +426,6 @@ var config = ({
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -466,17 +466,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1691,7 +1694,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -1890,6 +1893,43 @@ var initProxy;
   };
 }
 
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
 var mark;
 var measure;
 
@@ -2506,7 +2546,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -3183,40 +3223,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 var sharedPropertyDefinition = {
@@ -3790,12 +3796,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3805,7 +3818,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4385,7 +4398,9 @@ function renderMixin (Vue) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
         var slot = vm.$slots[key];
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */);
         }
       }
@@ -4936,7 +4951,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.3';
+Vue$3.version = '2.5.4';
 
 /*  */
 
@@ -5363,7 +5378,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  var inPre = 0;
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -5376,21 +5407,9 @@ function createPatchFunction (backend) {
     if (isDef(tag)) {
       {
         if (data && data.pre) {
-          inPre++;
+          creatingElmInVPre++;
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(function (ignore) {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -5414,7 +5433,7 @@ function createPatchFunction (backend) {
       }
 
       if ("development" !== 'production' && data && data.pre) {
-        inPre--;
+        creatingElmInVPre--;
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text);
@@ -5769,27 +5788,32 @@ function createPatchFunction (backend) {
     }
   }
 
-  var bailed = false;
+  var hydrationBailed = false;
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
       vnode.isAsyncPlaceholder = true;
       return true
     }
+    // assert node match
     {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
       if (isDef(i = vnode.componentInstance)) {
@@ -5810,9 +5834,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if ("development" !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('server innerHTML: ', i);
                 console.warn('client innerHTML: ', elm.innerHTML);
@@ -5824,7 +5848,7 @@ function createPatchFunction (backend) {
             var childrenMatch = true;
             var childNode = elm.firstChild;
             for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false;
                 break
               }
@@ -5836,9 +5860,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if ("development" !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
               }
@@ -5848,12 +5872,18 @@ function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        var fullInvoke = false;
         for (var key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true;
             invokeCreateHooks(vnode, insertedVnodeQueue);
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text;
@@ -5861,10 +5891,10 @@ function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
@@ -6985,12 +7015,12 @@ function leave (vnode, rm) {
   }
 
   var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
+  if (isUndef(data) || el.nodeType !== 1) {
     return rm()
   }
 
   /* istanbul ignore if */
-  if (isDef(el._leaveCb) || el.nodeType !== 1) {
+  if (isDef(el._leaveCb)) {
     return
   }
 
@@ -7445,7 +7475,7 @@ var Transition = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$options._renderChildren;
+    var children = this.$slots.default;
     if (!children) {
       return
     }
@@ -7524,7 +7554,9 @@ var Transition = {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 3693fa071b3..52b7390793b 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.3
+ * Vue.js v2.5.4
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Jn.call(t)}function s(t){return"[object RegExp]"===Jn.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},vi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},hi={name:"transition",props:vi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||_t(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!_t(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,ct(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(_t(a))return u;var d,p=function(){d()};ct(c,"afterEnter",p),ct(c,"enterCancelled",p),ct(f,"delayLeave",function(t){d=t})}}return i}}},mi=y({tag:String,moveClass:String},vi);delete mi.mode;var yi={Transition:hi,TransitionGroup:{props:mi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Xn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(ai,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(ai,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ni)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&wo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=To,Oe.config.isReservedAttr=Co,Oe.config.getTagNamespace=function(t){return Io(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(To(t))return!1;if(t=t.toLowerCase(),null!=Do[t])return Do[t];var e=document.createElement(t);return t.indexOf("-")>-1?Do[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Do[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,pi),y(Oe.options.components,yi),Oe.prototype.__patch__=dr?fi:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,St(this,t,e)},Oe.nextTick(function(){ur.devtools&&Or&&Or.emit("init",Oe)},0),Oe});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index fcd36e62be3..f00659693d8 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -6,6 +6,8 @@
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -568,8 +570,6 @@ function setText (node, text, raw) {
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -607,17 +607,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1820,7 +1823,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -2577,39 +2580,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     "development" !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -4511,18 +4534,7 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if ("development" !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
@@ -4689,10 +4701,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -4718,7 +4730,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
@@ -6047,6 +6059,43 @@ function renderSSRStyle (
   
 }
 
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
 {
   
 }
@@ -6399,7 +6448,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -6897,40 +6946,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 /*  */
@@ -7234,12 +7249,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -7249,7 +7271,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index dbbf5154af2..822ddb68575 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -8,6 +8,8 @@ var he = _interopDefault(require('he'));
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -570,8 +572,6 @@ function setText (node, text, raw) {
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -609,17 +609,20 @@ function parsePath (path) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1822,7 +1825,7 @@ function logError (err, vm, info) {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
     console.error(err);
   } else {
     throw err
@@ -2671,39 +2674,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     process.env.NODE_ENV !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -4250,18 +4273,7 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if (process.env.NODE_ENV !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
@@ -4428,10 +4440,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -4457,7 +4469,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
@@ -5788,6 +5800,43 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+/*  */
+
 var normalizeEvent = cached(function (name) {
   var passive = name.charAt(0) === '&';
   name = passive ? name.slice(1) : name;
@@ -6136,7 +6185,7 @@ function resolveSlots (
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -6628,40 +6677,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 /*  */
@@ -6965,12 +6980,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
-  var options = this.$options;
-  var cached = options.cached || (options.cached = []);
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  var renderFns = this.$options.staticRenderFns;
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -6980,7 +7002,7 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = options.staticRenderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 38309a24fd0..eac8fe3ca8e 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.3",
+  "version": "2.5.4",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 5a049cf353f..d91d78e7fc6 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -52,6 +52,8 @@ function count (line, type) {
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 
@@ -706,8 +708,6 @@ function parseComponent (
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -727,17 +727,20 @@ function def (obj, key, val, enumerable) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1931,39 +1934,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     "development" !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -3708,18 +3731,7 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if ("development" !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
@@ -3886,10 +3898,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -3915,7 +3927,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 93eb6db5600..cb09271b064 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -9,6 +9,8 @@ var he = _interopDefault(require('he'));
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 
@@ -663,8 +665,6 @@ function parseComponent (
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -684,17 +684,20 @@ function def (obj, key, val, enumerable) {
 
 /*  */
 
+
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1888,39 +1891,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     process.env.NODE_ENV !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -3310,18 +3333,7 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if (process.env.NODE_ENV !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
@@ -3488,10 +3500,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -3517,7 +3529,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 17cf9d135f6..159dcf86c91 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.3",
+  "version": "2.5.4",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From a2cd14c765cfb1f881f34911d4fd0540feb09cce Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 16 Nov 2017 14:53:23 -0500
Subject: [PATCH 238/911] build: release 2.5.4

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 954108e74e0..33291f2ad66 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.3",
+  "version": "2.5.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 7e72ab11777..146ad7d4744 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.3",
+  "version": "2.5.4",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 1e146037fa4280b502d0edf95936bc67e87fd339 Mon Sep 17 00:00:00 2001
From: Robert Pemberton <hellorobertp@gmail.com>
Date: Thu, 16 Nov 2017 16:24:23 +0000
Subject: [PATCH 239/911] feat: warn if both v-model and v-bind:value used on
 same element (#7056)

* test($compile): warn if v-model and :value used on same text input

#7048

* test($compile): make v-model and v-bind:value warning apply to all but exceptions

#7048

* test($compile): move v-model/:value conflict warner to model.js

#7048

* style: split long warning messages onto new lines
---
 .../web/compiler/directives/model.js          | 15 +++++++++++
 .../features/directives/model-text.spec.js    | 26 +++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 98d4259cf98..3ae0e75b27a 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -21,6 +21,7 @@ export default function model (
   const modifiers = dir.modifiers
   const tag = el.tag
   const type = el.attrsMap.type
+  const attrsMap = el.attrsMap
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -31,6 +32,20 @@ export default function model (
         `File inputs are read only. Use a v-on:change listener instead.`
       )
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      const vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value'
+      warn(
+        `${vBindValue} conflicts with v-model on the same element ` +
+        'because the latter already expands to a value binding internally'
+      )
+    }
   }
 
   if (el.component) {
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 7e291356c2f..2c186cc16f4 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -250,6 +250,32 @@ describe('Directive v-model text', () => {
     expect('You are binding v-model directly to a v-for iteration alias').toHaveBeenWarned()
   })
 
+  it('warn if v-model and v-bind:value conflict', () => {
+    new Vue({
+      data: {
+        test: 'foo'
+      },
+      template: '<input type="text" v-model="test" v-bind:value="test"/>'
+    }).$mount()
+    expect(
+      'v-bind:value conflicts with v-model on the same element because the latter already ' +
+      'expands to a value binding internally'
+    ).toHaveBeenWarned()
+  })
+
+  it('warn if v-model and :value conflict', () => {
+    new Vue({
+      data: {
+        test: 'foo'
+      },
+      template: '<input type="text" v-model="test" :value="test"/>'
+    }).$mount()
+    expect(
+      ':value conflicts with v-model on the same element because the latter already ' +
+      'expands to a value binding internally'
+    ).toHaveBeenWarned()
+  })
+
   if (!isAndroid) {
     it('does not trigger extra input events with single compositionend', () => {
       const spy = jasmine.createSpy()

From f5cd29e1d8197613c4dfb4013b240784c3b64e43 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 17 Nov 2017 09:45:03 -0500
Subject: [PATCH 240/911] fix: init _staticTrees to avoid runtime reference
 warning

fix #7075
---
 flow/component.js           | 1 +
 src/core/instance/render.js | 1 +
 2 files changed, 2 insertions(+)

diff --git a/flow/component.js b/flow/component.js
index 5286944553c..9fbade0b6e6 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -66,6 +66,7 @@ declare interface Component {
   _isDestroyed: boolean;
   _isBeingDestroyed: boolean;
   _vnode: ?VNode; // self root node
+  _staticTrees: ?Array<VNode>; // v-once cached trees
   _hasHookEvent: boolean;
   _provided: ?Object;
 
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index f83dc94fff7..391e124e2fc 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -17,6 +17,7 @@ import { isUpdatingChildComponent } from './lifecycle'
 
 export function initRender (vm: Component) {
   vm._vnode = null // the root of the child tree
+  vm._staticTrees = null // v-once cached trees
   const options = vm.$options
   const parentVnode = vm.$vnode = options._parentVnode // the placeholder node in parent tree
   const renderContext = parentVnode && parentVnode.context

From 6d6b3739e132723915bc2209663db1b825307865 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 17 Nov 2017 10:23:23 -0500
Subject: [PATCH 241/911] fix: should warn unknown components inside
 <keep-alive>

---
 src/core/components/keep-alive.js             |   5 +-
 .../component/component-keep-alive.spec.js    | 139 +++++++++---------
 2 files changed, 76 insertions(+), 68 deletions(-)

diff --git a/src/core/components/keep-alive.js b/src/core/components/keep-alive.js
index eb79b1f8fa6..cbaf38fab8f 100644
--- a/src/core/components/keep-alive.js
+++ b/src/core/components/keep-alive.js
@@ -81,7 +81,8 @@ export default {
   },
 
   render () {
-    const vnode: VNode = getFirstComponentChild(this.$slots.default)
+    const slot = this.$slots.default
+    const vnode: VNode = getFirstComponentChild(slot)
     const componentOptions: ?VNodeComponentOptions = vnode && vnode.componentOptions
     if (componentOptions) {
       // check pattern
@@ -115,6 +116,6 @@ export default {
 
       vnode.data.keepAlive = true
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 }
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index d6dad4e1d6d..bdd158fe134 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -477,6 +477,79 @@ describe('Component keep-alive', () => {
     }).then(done)
   })
 
+  it('max', done => {
+    const spyA = jasmine.createSpy()
+    const spyB = jasmine.createSpy()
+    const spyC = jasmine.createSpy()
+    const spyAD = jasmine.createSpy()
+    const spyBD = jasmine.createSpy()
+    const spyCD = jasmine.createSpy()
+
+    function assertCount (calls) {
+      expect([
+        spyA.calls.count(),
+        spyAD.calls.count(),
+        spyB.calls.count(),
+        spyBD.calls.count(),
+        spyC.calls.count(),
+        spyCD.calls.count()
+      ]).toEqual(calls)
+    }
+
+    const vm = new Vue({
+      template: `
+        <keep-alive max="2">
+          <component :is="n"></component>
+        </keep-alive>
+      `,
+      data: {
+        n: 'aa'
+      },
+      components: {
+        aa: {
+          template: '<div>a</div>',
+          created: spyA,
+          destroyed: spyAD
+        },
+        bb: {
+          template: '<div>bbb</div>',
+          created: spyB,
+          destroyed: spyBD
+        },
+        cc: {
+          template: '<div>ccc</div>',
+          created: spyC,
+          destroyed: spyCD
+        }
+      }
+    }).$mount()
+
+    assertCount([1, 0, 0, 0, 0, 0])
+    vm.n = 'bb'
+    waitForUpdate(() => {
+      assertCount([1, 0, 1, 0, 0, 0])
+      vm.n = 'cc'
+    }).then(() => {
+      // should prune A because max cache reached
+      assertCount([1, 1, 1, 0, 1, 0])
+      vm.n = 'bb'
+    }).then(() => {
+      // B should be reused, and made latest
+      assertCount([1, 1, 1, 0, 1, 0])
+      vm.n = 'aa'
+    }).then(() => {
+      // C should be pruned because B was used last so C is the oldest cached
+      assertCount([2, 1, 1, 0, 1, 1])
+    }).then(done)
+  })
+
+  it('should warn unknown component inside', () => {
+    new Vue({
+      template: `<keep-alive><foo/></keep-alive>`
+    }).$mount()
+    expect(`Unknown custom element: <foo>`).toHaveBeenWarned()
+  })
+
   if (!isIE9) {
     it('with transition-mode out-in', done => {
       let next
@@ -946,71 +1019,5 @@ describe('Component keep-alive', () => {
         }).then(done)
       }
     })
-
-    it('max', done => {
-      const spyA = jasmine.createSpy()
-      const spyB = jasmine.createSpy()
-      const spyC = jasmine.createSpy()
-      const spyAD = jasmine.createSpy()
-      const spyBD = jasmine.createSpy()
-      const spyCD = jasmine.createSpy()
-
-      function assertCount (calls) {
-        expect([
-          spyA.calls.count(),
-          spyAD.calls.count(),
-          spyB.calls.count(),
-          spyBD.calls.count(),
-          spyC.calls.count(),
-          spyCD.calls.count()
-        ]).toEqual(calls)
-      }
-
-      const vm = new Vue({
-        template: `
-          <keep-alive max="2">
-            <component :is="n"></component>
-          </keep-alive>
-        `,
-        data: {
-          n: 'aa'
-        },
-        components: {
-          aa: {
-            template: '<div>a</div>',
-            created: spyA,
-            destroyed: spyAD
-          },
-          bb: {
-            template: '<div>bbb</div>',
-            created: spyB,
-            destroyed: spyBD
-          },
-          cc: {
-            template: '<div>ccc</div>',
-            created: spyC,
-            destroyed: spyCD
-          }
-        }
-      }).$mount()
-
-      assertCount([1, 0, 0, 0, 0, 0])
-      vm.n = 'bb'
-      waitForUpdate(() => {
-        assertCount([1, 0, 1, 0, 0, 0])
-        vm.n = 'cc'
-      }).then(() => {
-        // should prune A because max cache reached
-        assertCount([1, 1, 1, 0, 1, 0])
-        vm.n = 'bb'
-      }).then(() => {
-        // B should be reused, and made latest
-        assertCount([1, 1, 1, 0, 1, 0])
-        vm.n = 'aa'
-      }).then(() => {
-        // C should be pruned because B was used last so C is the oldest cached
-        assertCount([2, 1, 1, 0, 1, 1])
-      }).then(done)
-    })
   }
 })

From 4d8226fb2c84fa2e13a2d8a86dea8a9a5c6ea95f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 17 Nov 2017 10:30:51 -0500
Subject: [PATCH 242/911] fix: keep-alive should not cache anonymous components

This only happens if the component is returned by a intermediate
functional or abstract component, e.g. <router-view>. Fix #6938.
---
 src/core/components/keep-alive.js             |  2 +-
 .../component/component-keep-alive.spec.js    | 54 +++++++++++++++++++
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/src/core/components/keep-alive.js b/src/core/components/keep-alive.js
index cbaf38fab8f..80632e76607 100644
--- a/src/core/components/keep-alive.js
+++ b/src/core/components/keep-alive.js
@@ -87,7 +87,7 @@ export default {
     if (componentOptions) {
       // check pattern
       const name: ?string = getComponentName(componentOptions)
-      if (name && (
+      if (!name || (
         (this.exclude && matches(this.exclude, name)) ||
         (this.include && !matches(this.include, name))
       )) {
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index bdd158fe134..545b0bb667b 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -550,6 +550,60 @@ describe('Component keep-alive', () => {
     expect(`Unknown custom element: <foo>`).toHaveBeenWarned()
   })
 
+  // #6938
+  it('should not cache anonymous component', done => {
+    const Foo = {
+      name: 'foo',
+      template: `<div>foo</div>`,
+      created: jasmine.createSpy('foo')
+    }
+
+    const Bar = {
+      template: `<div>bar</div>`,
+      created: jasmine.createSpy('bar')
+    }
+
+    const Child = {
+      functional: true,
+      render (h, ctx) {
+        return h(ctx.props.view ? Foo : Bar)
+      }
+    }
+
+    const vm = new Vue({
+      template: `
+        <keep-alive include="foo">
+          <child :view="view"></child>
+        </keep-alive>
+      `,
+      data: {
+        view: true
+      },
+      components: { Child }
+    }).$mount()
+
+    function assert (foo, bar) {
+      expect(Foo.created.calls.count()).toBe(foo)
+      expect(Bar.created.calls.count()).toBe(bar)
+    }
+
+    expect(vm.$el.textContent).toBe('foo')
+    assert(1, 0)
+    vm.view = false
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe('bar')
+      assert(1, 1)
+      vm.view = true
+    }).then(() => {
+      expect(vm.$el.textContent).toBe('foo')
+      assert(1, 1)
+      vm.view = false
+    }).then(() => {
+      expect(vm.$el.textContent).toBe('bar')
+      assert(1, 2)
+    }).then(done)
+  })
+
   if (!isIE9) {
     it('with transition-mode out-in', done => {
       let next

From 9ae75e5c2afa34ea630747c3716beb75a9947fb7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 17 Nov 2017 11:36:54 -0500
Subject: [PATCH 243/911] build: build 2.5.5

---
 dist/vue.common.js                          | 27 +++++++++++++++++----
 dist/vue.esm.js                             | 27 +++++++++++++++++----
 dist/vue.js                                 | 27 +++++++++++++++++----
 dist/vue.min.js                             |  4 +--
 dist/vue.runtime.common.js                  | 12 +++++----
 dist/vue.runtime.esm.js                     | 12 +++++----
 dist/vue.runtime.js                         | 12 +++++----
 dist/vue.runtime.min.js                     |  4 +--
 packages/vue-server-renderer/basic.js       | 15 ++++++++++++
 packages/vue-server-renderer/build.js       | 15 ++++++++++++
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 15 ++++++++++++
 packages/vue-template-compiler/build.js     | 15 ++++++++++++
 packages/vue-template-compiler/package.json |  2 +-
 14 files changed, 153 insertions(+), 36 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 85b4d693e72..4b1a5d9a06d 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4358,6 +4358,7 @@ function applyNS (vnode, ns, force) {
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
   var options = vm.$options;
   var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
@@ -4863,12 +4864,13 @@ var KeepAlive = {
   },
 
   render: function render () {
-    var vnode = getFirstComponentChild(this.$slots.default);
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
     var componentOptions = vnode && vnode.componentOptions;
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (name && (
+      if (!name || (
         (this.exclude && matches(this.exclude, name)) ||
         (this.include && !matches(this.include, name))
       )) {
@@ -4899,7 +4901,7 @@ var KeepAlive = {
 
       vnode.data.keepAlive = true;
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 };
 
@@ -4966,7 +4968,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.4';
+Vue$3.version = '2.5.5';
 
 /*  */
 
@@ -6673,6 +6675,7 @@ function model (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
+  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -6683,6 +6686,20 @@ function model (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        vBindValue + " conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
   }
 
   if (el.component) {
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 606dfbebca1..55d5cefa619 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4356,6 +4356,7 @@ function applyNS (vnode, ns, force) {
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
   var options = vm.$options;
   var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
@@ -4861,12 +4862,13 @@ var KeepAlive = {
   },
 
   render: function render () {
-    var vnode = getFirstComponentChild(this.$slots.default);
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
     var componentOptions = vnode && vnode.componentOptions;
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (name && (
+      if (!name || (
         (this.exclude && matches(this.exclude, name)) ||
         (this.include && !matches(this.include, name))
       )) {
@@ -4897,7 +4899,7 @@ var KeepAlive = {
 
       vnode.data.keepAlive = true;
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 };
 
@@ -4964,7 +4966,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.4';
+Vue$3.version = '2.5.5';
 
 /*  */
 
@@ -6671,6 +6673,7 @@ function model (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
+  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -6681,6 +6684,20 @@ function model (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        vBindValue + " conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
   }
 
   if (el.component) {
diff --git a/dist/vue.js b/dist/vue.js
index 2c45bd95f00..79163b1f463 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4354,6 +4354,7 @@ function applyNS (vnode, ns, force) {
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
   var options = vm.$options;
   var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
@@ -4852,12 +4853,13 @@ var KeepAlive = {
   },
 
   render: function render () {
-    var vnode = getFirstComponentChild(this.$slots.default);
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
     var componentOptions = vnode && vnode.componentOptions;
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (name && (
+      if (!name || (
         (this.exclude && matches(this.exclude, name)) ||
         (this.include && !matches(this.include, name))
       )) {
@@ -4888,7 +4890,7 @@ var KeepAlive = {
 
       vnode.data.keepAlive = true;
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 };
 
@@ -4955,7 +4957,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.4';
+Vue$3.version = '2.5.5';
 
 /*  */
 
@@ -6662,6 +6664,7 @@ function model (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
+  var attrsMap = el.attrsMap;
 
   {
     // inputs with type="file" are read only and setting the input's
@@ -6672,6 +6675,20 @@ function model (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        vBindValue + " conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
   }
 
   if (el.component) {
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 394990ebec4..1ffcff8fbb4 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Si.call(e)}function s(e){return"[object RegExp]"===Si.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 2a5ca98f094..e43c8596f0c 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4354,6 +4354,7 @@ function applyNS (vnode, ns, force) {
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
   var options = vm.$options;
   var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
@@ -4859,12 +4860,13 @@ var KeepAlive = {
   },
 
   render: function render () {
-    var vnode = getFirstComponentChild(this.$slots.default);
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
     var componentOptions = vnode && vnode.componentOptions;
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (name && (
+      if (!name || (
         (this.exclude && matches(this.exclude, name)) ||
         (this.include && !matches(this.include, name))
       )) {
@@ -4895,7 +4897,7 @@ var KeepAlive = {
 
       vnode.data.keepAlive = true;
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 };
 
@@ -4962,7 +4964,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.4';
+Vue$3.version = '2.5.5';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index d6053a6f174..46a570e0212 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4352,6 +4352,7 @@ function applyNS (vnode, ns, force) {
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
   var options = vm.$options;
   var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
@@ -4857,12 +4858,13 @@ var KeepAlive = {
   },
 
   render: function render () {
-    var vnode = getFirstComponentChild(this.$slots.default);
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
     var componentOptions = vnode && vnode.componentOptions;
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (name && (
+      if (!name || (
         (this.exclude && matches(this.exclude, name)) ||
         (this.include && !matches(this.include, name))
       )) {
@@ -4893,7 +4895,7 @@ var KeepAlive = {
 
       vnode.data.keepAlive = true;
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 };
 
@@ -4960,7 +4962,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.4';
+Vue$3.version = '2.5.5';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index f917b7ddb77..b1bd1014177 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4350,6 +4350,7 @@ function applyNS (vnode, ns, force) {
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
   var options = vm.$options;
   var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
@@ -4848,12 +4849,13 @@ var KeepAlive = {
   },
 
   render: function render () {
-    var vnode = getFirstComponentChild(this.$slots.default);
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
     var componentOptions = vnode && vnode.componentOptions;
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (name && (
+      if (!name || (
         (this.exclude && matches(this.exclude, name)) ||
         (this.include && !matches(this.include, name))
       )) {
@@ -4884,7 +4886,7 @@ var KeepAlive = {
 
       vnode.data.keepAlive = true;
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 };
 
@@ -4951,7 +4953,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.4';
+Vue$3.version = '2.5.5';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 52b7390793b..082a5fdb007 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.4
+ * Vue.js v2.5.5
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Jn.call(t)}function s(t){return"[object RegExp]"===Jn.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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s=o.elm=r.elm;if(n(r.isAsyncPlaceholder))e(o.asyncFactory.resolved)?k(r.elm,o,i):o.isAsyncPlaceholder=!0;else if(n(o.isStatic)&&n(r.isStatic)&&o.key===r.key&&(n(o.isCloned)||n(o.isOnce)))o.componentInstance=r.componentInstance;else{var c,u=o.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,o);var l=r.children,f=o.children;if(e(u)&&h(o)){for(c=0;c<E.update.length;++c)E.update[c](r,o);e(c=u.hook)&&e(c=c.update)&&c(r,o)}t(o.text)?e(l)&&e(f)?l!==f&&w(s,l,f,i,a):e(f)?(e(r.text)&&I.setTextContent(s,""),_(s,null,f,0,f.length-1,i)):e(l)?b(s,l,0,l.length-1):e(r.text)&&I.setTextContent(s,""):r.text!==o.text&&I.setTextContent(s,o.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,o)}}}function x(t,r,o){if(n(o)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var i=0;i<r.length;++i)r[i].data.hook.insert(r[i])}function k(t,r,o,i){var a,s=r.tag,c=r.data,u=r.children;if(i=i||c&&c.pre,r.elm=t,n(r.isComment)&&e(r.asyncFactory))return r.isAsyncPlaceholder=!0,!0;if(e(c)&&(e(a=c.hook)&&e(a=a.init)&&a(r,!0),e(a=r.componentInstance)))return l(r,o),!0;if(e(s)){if(e(u))if(t.hasChildNodes())if(e(a=c)&&e(a=a.domProps)&&e(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var f=!0,d=t.firstChild,p=0;p<u.length;p++){if(!d||!k(d,u[p],o,i)){f=!1;break}d=d.nextSibling}if(!f||d)return!1}else v(r,u,o);if(e(c)){var h=!1;for(var y in c)if(!T(y)){h=!0,m(r,o);break}!h&&c.class&&ot(c.class)}}else t.data!==r.text&&(t.data=r.text);return!0}var O,S,E={},j=r.modules,I=r.nodeOps;for(O=0;O<Uo.length;++O)for(E[Uo[O]]=[],S=0;S<j.length;++S)e(j[S][Uo[O]])&&E[Uo[O]].push(j[S][Uo[O]]);var T=f("attrs,class,staticClass,staticStyle,key");return function(r,o,a,s,u,l){if(!t(o)){var f=!1,d=[];if(t(r))f=!0,c(o,d,u,l);else{var p=e(r.nodeType);if(!p&&Ke(r,o))$(r,o,d,s);else{if(p){if(1===r.nodeType&&r.hasAttribute(ar)&&(r.removeAttribute(ar),a=!0),n(a)&&k(r,o,d))return x(o,d,!0),r;r=i(r)}var v=r.elm,m=I.parentNode(v);if(c(o,d,v._leaveCb?null:m,I.nextSibling(v)),e(o.parent))for(var y=o.parent,_=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,_){for(var w=0;w<E.create.length;++w)E.create[w](Mo,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else qe(y);y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&g(r)}}return x(o,d,f),o.elm}e(r)&&g(r)}}({nodeOps:Po,modules:[Bo,Ho,qo,Ko,ti,dr?{create:Tn,activate:Tn,remove:function(t,e){!0!==t.data.show?En(t,e):e()}}:{}].concat(Vo)});yr&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Fn(t,"input")});var di={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ct(n,"postpatch",function(){di.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||Lo(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Un),gr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Un)),yr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Fn(t,"change")}}},pi={model:di,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},vi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},hi={name:"transition",props:vi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||_t(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!_t(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,ct(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(_t(a))return u;var d,p=function(){d()};ct(c,"afterEnter",p),ct(c,"enterCancelled",p),ct(f,"delayLeave",function(t){d=t})}}return i}}},mi=y({tag:String,moveClass:String},vi);delete mi.mode;var yi={Transition:hi,TransitionGroup:{props:mi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Xn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(ai,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(ai,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ni)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&wo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=To,Oe.config.isReservedAttr=Co,Oe.config.getTagNamespace=function(t){return Io(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(To(t))return!1;if(t=t.toLowerCase(),null!=Do[t])return Do[t];var e=document.createElement(t);return t.indexOf("-")>-1?Do[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Do[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,pi),y(Oe.options.components,yi),Oe.prototype.__patch__=dr?fi:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,St(this,t,e)},Oe.nextTick(function(){ur.devtools&&Or&&Or.emit("init",Oe)},0),Oe});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index f00659693d8..2170cfd244e 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -4316,6 +4316,7 @@ function model$2 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
+  var attrsMap = el.attrsMap;
 
   {
     // inputs with type="file" are read only and setting the input's
@@ -4326,6 +4327,20 @@ function model$2 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        vBindValue + " conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
   }
 
   if (el.component) {
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 822ddb68575..bf87bb34746 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -4055,6 +4055,7 @@ function model$2 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
+  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -4065,6 +4066,20 @@ function model$2 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        vBindValue + " conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
   }
 
   if (el.component) {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index eac8fe3ca8e..a5de9e17470 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.4",
+  "version": "2.5.5",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index d91d78e7fc6..46a55a336f4 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -3386,6 +3386,7 @@ function model$1 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
+  var attrsMap = el.attrsMap;
 
   {
     // inputs with type="file" are read only and setting the input's
@@ -3396,6 +3397,20 @@ function model$1 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        vBindValue + " conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
   }
 
   if (el.component) {
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index cb09271b064..dbeb8d9110c 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -2988,6 +2988,7 @@ function model$1 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
+  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -2998,6 +2999,20 @@ function model$1 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
+
+    // warn if v-bind:value conflicts with v-model
+    if (
+      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
+      type !== 'checkbox' &&
+      type !== 'radio' &&
+      tag !== 'select'
+    ) {
+      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        vBindValue + " conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
   }
 
   if (el.component) {
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 159dcf86c91..ba8fc73e6f2 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.4",
+  "version": "2.5.5",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 06f121b4735e8c70306c744419287592af295eac Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 17 Nov 2017 11:36:55 -0500
Subject: [PATCH 244/911] build: release 2.5.5

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 33291f2ad66..356f0e94807 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.4",
+  "version": "2.5.5",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 146ad7d4744..825d917e6c2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.4",
+  "version": "2.5.5",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 59dea374037ec2e6b1f5570a30774f2de0a44adc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 18 Nov 2017 14:41:22 -0500
Subject: [PATCH 245/911] fix: fix v-model :value warning on custom component

fix #7084
---
 .../web/compiler/directives/model.js          | 28 +++++++--------
 .../features/directives/model-text.spec.js    | 35 +++++++++++++------
 2 files changed, 38 insertions(+), 25 deletions(-)

diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 3ae0e75b27a..81c4777c59f 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -21,7 +21,6 @@ export default function model (
   const modifiers = dir.modifiers
   const tag = el.tag
   const type = el.attrsMap.type
-  const attrsMap = el.attrsMap
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -32,20 +31,6 @@ export default function model (
         `File inputs are read only. Use a v-on:change listener instead.`
       )
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      const vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value'
-      warn(
-        `${vBindValue} conflicts with v-model on the same element ` +
-        'because the latter already expands to a value binding internally'
-      )
-    }
   }
 
   if (el.component) {
@@ -143,6 +128,19 @@ function genDefaultModel (
   modifiers: ?ASTModifiers
 ): ?boolean {
   const type = el.attrsMap.type
+
+  // warn if v-bind:value conflicts with v-model
+  if (process.env.NODE_ENV !== 'production') {
+    const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value']
+    if (value) {
+      const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value'
+      warn(
+        `${binding}="${value}" conflicts with v-model on the same element ` +
+        'because the latter already expands to a value binding internally'
+      )
+    }
+  }
+
   const { lazy, number, trim } = modifiers || {}
   const needCompositionGuard = !lazy && type !== 'range'
   const event = lazy
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 2c186cc16f4..9cc76b852a9 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -255,12 +255,9 @@ describe('Directive v-model text', () => {
       data: {
         test: 'foo'
       },
-      template: '<input type="text" v-model="test" v-bind:value="test"/>'
+      template: '<input type="text" v-model="test" v-bind:value="test">'
     }).$mount()
-    expect(
-      'v-bind:value conflicts with v-model on the same element because the latter already ' +
-      'expands to a value binding internally'
-    ).toHaveBeenWarned()
+    expect('v-bind:value="test" conflicts with v-model').toHaveBeenWarned()
   })
 
   it('warn if v-model and :value conflict', () => {
@@ -268,12 +265,30 @@ describe('Directive v-model text', () => {
       data: {
         test: 'foo'
       },
-      template: '<input type="text" v-model="test" :value="test"/>'
+      template: '<input type="text" v-model="test" :value="test">'
     }).$mount()
-    expect(
-      ':value conflicts with v-model on the same element because the latter already ' +
-      'expands to a value binding internally'
-    ).toHaveBeenWarned()
+    expect(':value="test" conflicts with v-model').toHaveBeenWarned()
+  })
+
+  it('should not warn on radio, checkbox, or custom component', () => {
+    new Vue({
+      data: { test: '' },
+      components: {
+        foo: {
+          props: ['model', 'value'],
+          model: { prop: 'model', event: 'change' },
+          template: `<div/>`
+        }
+      },
+      template: `
+        <div>
+          <input type="checkbox" v-model="test" :value="test">
+          <input type="radio" v-model="test" :value="test">
+          <foo v-model="test" :value="test"/>
+        </div>
+      `
+    }).$mount()
+    expect('conflicts with v-model').not.toHaveBeenWarned()
   })
 
   if (!isAndroid) {

From 7f31ec9ab7c3c01961d3a2655ba957be8a42bbdb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 18 Nov 2017 14:44:00 -0500
Subject: [PATCH 246/911] build: build 2.5.6

---
 dist/vue.common.js                          | 32 ++++++++++-----------
 dist/vue.esm.js                             | 32 ++++++++++-----------
 dist/vue.js                                 | 32 ++++++++++-----------
 dist/vue.min.js                             |  4 +--
 dist/vue.runtime.common.js                  |  4 +--
 dist/vue.runtime.esm.js                     |  4 +--
 dist/vue.runtime.js                         |  4 +--
 dist/vue.runtime.min.js                     |  4 +--
 packages/vue-server-renderer/basic.js       | 28 +++++++++---------
 packages/vue-server-renderer/build.js       | 28 +++++++++---------
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 28 +++++++++---------
 packages/vue-template-compiler/build.js     | 28 +++++++++---------
 packages/vue-template-compiler/package.json |  2 +-
 14 files changed, 109 insertions(+), 123 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 4b1a5d9a06d..60115a1da96 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4968,7 +4968,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.5';
+Vue$3.version = '2.5.6';
 
 /*  */
 
@@ -6675,7 +6675,6 @@ function model (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
-  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -6686,20 +6685,6 @@ function model (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        vBindValue + " conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
   }
 
   if (el.component) {
@@ -6797,6 +6782,19 @@ function genDefaultModel (
   modifiers
 ) {
   var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  if (process.env.NODE_ENV !== 'production') {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value$1) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
   var ref = modifiers || {};
   var lazy = ref.lazy;
   var number = ref.number;
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 55d5cefa619..02b323f7091 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4966,7 +4966,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.5';
+Vue$3.version = '2.5.6';
 
 /*  */
 
@@ -6673,7 +6673,6 @@ function model (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
-  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -6684,20 +6683,6 @@ function model (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        vBindValue + " conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
   }
 
   if (el.component) {
@@ -6795,6 +6780,19 @@ function genDefaultModel (
   modifiers
 ) {
   var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  if (process.env.NODE_ENV !== 'production') {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value$1) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
   var ref = modifiers || {};
   var lazy = ref.lazy;
   var number = ref.number;
diff --git a/dist/vue.js b/dist/vue.js
index 79163b1f463..fc3a0e30f81 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4957,7 +4957,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.5';
+Vue$3.version = '2.5.6';
 
 /*  */
 
@@ -6664,7 +6664,6 @@ function model (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
-  var attrsMap = el.attrsMap;
 
   {
     // inputs with type="file" are read only and setting the input's
@@ -6675,20 +6674,6 @@ function model (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        vBindValue + " conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
   }
 
   if (el.component) {
@@ -6786,6 +6771,19 @@ function genDefaultModel (
   modifiers
 ) {
   var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value$1) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
   var ref = modifiers || {};
   var lazy = ref.lazy;
   var number = ref.number;
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 1ffcff8fbb4..9e671d02a7a 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Si.call(e)}function s(e){return"[object RegExp]"===Si.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index e43c8596f0c..ab56601fdc5 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4964,7 +4964,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.5';
+Vue$3.version = '2.5.6';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 46a570e0212..a4459ecf942 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4962,7 +4962,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.5';
+Vue$3.version = '2.5.6';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index b1bd1014177..c0338435a08 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4953,7 +4953,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.5';
+Vue$3.version = '2.5.6';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 082a5fdb007..a8bcc9732dc 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.5
+ * Vue.js v2.5.6
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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di={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ct(n,"postpatch",function(){di.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||Lo(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Un),gr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Un)),yr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Fn(t,"change")}}},pi={model:di,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var 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c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!_t(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,ct(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(_t(a))return u;var d,p=function(){d()};ct(c,"afterEnter",p),ct(c,"enterCancelled",p),ct(f,"delayLeave",function(t){d=t})}}return i}}},mi=y({tag:String,moveClass:String},vi);delete mi.mode;var yi={Transition:hi,TransitionGroup:{props:mi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var 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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 2170cfd244e..10c35d78812 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -4316,7 +4316,6 @@ function model$2 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
-  var attrsMap = el.attrsMap;
 
   {
     // inputs with type="file" are read only and setting the input's
@@ -4327,20 +4326,6 @@ function model$2 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$2(
-        vBindValue + " conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
   }
 
   if (el.component) {
@@ -4438,6 +4423,19 @@ function genDefaultModel (
   modifiers
 ) {
   var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value$1) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
   var ref = modifiers || {};
   var lazy = ref.lazy;
   var number = ref.number;
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index bf87bb34746..70ccdae3756 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -4055,7 +4055,6 @@ function model$2 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
-  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -4066,20 +4065,6 @@ function model$2 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$2(
-        vBindValue + " conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
   }
 
   if (el.component) {
@@ -4177,6 +4162,19 @@ function genDefaultModel (
   modifiers
 ) {
   var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  if (process.env.NODE_ENV !== 'production') {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value$1) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
   var ref = modifiers || {};
   var lazy = ref.lazy;
   var number = ref.number;
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index a5de9e17470..5572e81d1e3 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.5",
+  "version": "2.5.6",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 46a55a336f4..c96f99cf5fb 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -3386,7 +3386,6 @@ function model$1 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
-  var attrsMap = el.attrsMap;
 
   {
     // inputs with type="file" are read only and setting the input's
@@ -3397,20 +3396,6 @@ function model$1 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$2(
-        vBindValue + " conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
   }
 
   if (el.component) {
@@ -3508,6 +3493,19 @@ function genDefaultModel (
   modifiers
 ) {
   var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value$1) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
   var ref = modifiers || {};
   var lazy = ref.lazy;
   var number = ref.number;
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index dbeb8d9110c..204c21cba69 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -2988,7 +2988,6 @@ function model$1 (
   var modifiers = dir.modifiers;
   var tag = el.tag;
   var type = el.attrsMap.type;
-  var attrsMap = el.attrsMap;
 
   if (process.env.NODE_ENV !== 'production') {
     // inputs with type="file" are read only and setting the input's
@@ -2999,20 +2998,6 @@ function model$1 (
         "File inputs are read only. Use a v-on:change listener instead."
       );
     }
-
-    // warn if v-bind:value conflicts with v-model
-    if (
-      (attrsMap['v-bind:value'] || attrsMap[':value']) &&
-      type !== 'checkbox' &&
-      type !== 'radio' &&
-      tag !== 'select'
-    ) {
-      var vBindValue = attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$2(
-        vBindValue + " conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
   }
 
   if (el.component) {
@@ -3110,6 +3095,19 @@ function genDefaultModel (
   modifiers
 ) {
   var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  if (process.env.NODE_ENV !== 'production') {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value$1) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$2(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
   var ref = modifiers || {};
   var lazy = ref.lazy;
   var number = ref.number;
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index ba8fc73e6f2..683af65f2ec 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.5",
+  "version": "2.5.6",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From b2781205b0271a9b59afe0c816b41c6dbe85f0a3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 18 Nov 2017 14:44:01 -0500
Subject: [PATCH 247/911] build: release 2.5.6

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 356f0e94807..060f1bcf66b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.5",
+  "version": "2.5.6",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 825d917e6c2..6c47a9c9b47 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.5",
+  "version": "2.5.6",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From a23b913796a7d18e76185607f250655e18a390c8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 20 Nov 2017 10:04:06 -0500
Subject: [PATCH 248/911] fix: fix <keep-alive> include/exclude logic for
 anonymous components

---
 src/core/components/keep-alive.js             | 11 ++--
 .../component/component-keep-alive.spec.js    | 54 ++++++++++++++++++-
 2 files changed, 60 insertions(+), 5 deletions(-)

diff --git a/src/core/components/keep-alive.js b/src/core/components/keep-alive.js
index 80632e76607..d0ebe0a9172 100644
--- a/src/core/components/keep-alive.js
+++ b/src/core/components/keep-alive.js
@@ -87,10 +87,13 @@ export default {
     if (componentOptions) {
       // check pattern
       const name: ?string = getComponentName(componentOptions)
-      if (!name || (
-        (this.exclude && matches(this.exclude, name)) ||
-        (this.include && !matches(this.include, name))
-      )) {
+      const { include, exclude } = this
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index 545b0bb667b..dbae84fe974 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -551,7 +551,7 @@ describe('Component keep-alive', () => {
   })
 
   // #6938
-  it('should not cache anonymous component', done => {
+  it('should not cache anonymous component when include is specified', done => {
     const Foo = {
       name: 'foo',
       template: `<div>foo</div>`,
@@ -604,6 +604,58 @@ describe('Component keep-alive', () => {
     }).then(done)
   })
 
+  it('should cache anonymous components if include is not specified', done => {
+    const Foo = {
+      template: `<div>foo</div>`,
+      created: jasmine.createSpy('foo')
+    }
+
+    const Bar = {
+      template: `<div>bar</div>`,
+      created: jasmine.createSpy('bar')
+    }
+
+    const Child = {
+      functional: true,
+      render (h, ctx) {
+        return h(ctx.props.view ? Foo : Bar)
+      }
+    }
+
+    const vm = new Vue({
+      template: `
+        <keep-alive>
+          <child :view="view"></child>
+        </keep-alive>
+      `,
+      data: {
+        view: true
+      },
+      components: { Child }
+    }).$mount()
+
+    function assert (foo, bar) {
+      expect(Foo.created.calls.count()).toBe(foo)
+      expect(Bar.created.calls.count()).toBe(bar)
+    }
+
+    expect(vm.$el.textContent).toBe('foo')
+    assert(1, 0)
+    vm.view = false
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe('bar')
+      assert(1, 1)
+      vm.view = true
+    }).then(() => {
+      expect(vm.$el.textContent).toBe('foo')
+      assert(1, 1)
+      vm.view = false
+    }).then(() => {
+      expect(vm.$el.textContent).toBe('bar')
+      assert(1, 1)
+    }).then(done)
+  })
+
   if (!isIE9) {
     it('with transition-mode out-in', done => {
       let next

From 063acb79ebc02344ab277196d4aea0577b113926 Mon Sep 17 00:00:00 2001
From: mni_Ya <mniya321@gmail.com>
Date: Mon, 20 Nov 2017 23:33:53 +0800
Subject: [PATCH 249/911] fix(ssr): fix bundle renderer require path on windows
 (#7085)

fixed windows os  `vue-ssr-server-bundle.json` within module can't found on server rendering
---
 src/server/bundle-renderer/create-bundle-runner.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/server/bundle-renderer/create-bundle-runner.js b/src/server/bundle-renderer/create-bundle-runner.js
index a0e1d283aa1..16c33c4152e 100644
--- a/src/server/bundle-renderer/create-bundle-runner.js
+++ b/src/server/bundle-renderer/create-bundle-runner.js
@@ -51,7 +51,7 @@ function compileModule (files, basedir, runInNewContext) {
       : script.runInNewContext(sandbox)
     const m = { exports: {}}
     const r = file => {
-      file = path.join('.', file)
+      file = path.posix.join('.', file)
       if (files[file]) {
         return evaluateModule(file, sandbox, evaluatedFiles)
       } else if (basedir) {

From 4c22d1d17ffd3a9340c3b17443c7989d04ab14c5 Mon Sep 17 00:00:00 2001
From: Richard Musiol <mail@richard-musiol.de>
Date: Mon, 20 Nov 2017 16:38:39 +0100
Subject: [PATCH 250/911] fix: allow traversing reactive objects which are
 sealed (#7080)

---
 src/core/observer/traverse.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/observer/traverse.js b/src/core/observer/traverse.js
index ca6c314eb76..37c71e9cf98 100644
--- a/src/core/observer/traverse.js
+++ b/src/core/observer/traverse.js
@@ -18,7 +18,7 @@ export function traverse (val: any) {
 function _traverse (val: any, seen: SimpleSet) {
   let i, keys
   const isA = Array.isArray(val)
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {

From c264335fbd1b1d838e3c1085b7d6dcd1c752aa43 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 20 Nov 2017 11:12:56 -0500
Subject: [PATCH 251/911] feat: feat: add warning for ambiguous combined usage
 of slot-scope and v-for

close #6817
---
 src/compiler/parser/index.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 1a28e86de2e..df75cac91ac 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -460,6 +460,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope')
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+        warn(
+          `Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
+          `(v-for takes higher priority). Use a wrapper <template> for the ` +
+          `scoped slot to make it clearer.`,
+          true
+        )
+      }
       el.slotScope = slotScope
     }
     const slotTarget = getBindingAttr(el, 'slot')

From d891cd1761df22e1e0b1953c6ed7947fdb79d915 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 20 Nov 2017 14:12:10 -0500
Subject: [PATCH 252/911] fix: improve error detector v-for identifier check

close #6971
---
 src/compiler/error-detector.js | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/compiler/error-detector.js b/src/compiler/error-detector.js
index 6321f4f7a10..094ec99aa29 100644
--- a/src/compiler/error-detector.js
+++ b/src/compiler/error-detector.js
@@ -15,9 +15,6 @@ const unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)')
 
-// check valid identifier for v-for
-const identRE = /[A-Za-z_$][\w$]*/
-
 // strip strings in expressions
 const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g
 
@@ -75,9 +72,18 @@ function checkFor (node: ASTElement, text: string, errors: Array<string>) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors)
 }
 
-function checkIdentifier (ident: ?string, type: string, text: string, errors: Array<string>) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(`invalid ${type} "${ident}" in expression: ${text.trim()}`)
+function checkIdentifier (
+  ident: ?string,
+  type: string,
+  text: string,
+  errors: Array<string>
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(`var ${ident}`)
+    } catch (e) {
+      errors.push(`invalid ${type} "${ident}" in expression: ${text.trim()}`)
+    }
   }
 }
 

From c0d03ab12730bc9ddeff52c232b302726ab9df12 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 20 Nov 2017 14:49:23 -0500
Subject: [PATCH 253/911] build: build 2.5.7

---
 dist/vue.common.js                          | 52 ++++++++++++++-------
 dist/vue.esm.js                             | 52 ++++++++++++++-------
 dist/vue.js                                 | 52 ++++++++++++++-------
 dist/vue.min.js                             |  4 +-
 dist/vue.runtime.common.js                  | 25 ++++++----
 dist/vue.runtime.esm.js                     | 25 ++++++----
 dist/vue.runtime.js                         | 25 ++++++----
 dist/vue.runtime.min.js                     |  4 +-
 packages/vue-server-renderer/basic.js       | 29 +++++++++---
 packages/vue-server-renderer/build.js       | 31 ++++++++----
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 27 ++++++++---
 packages/vue-template-compiler/build.js     | 27 ++++++++---
 packages/vue-template-compiler/package.json |  2 +-
 14 files changed, 246 insertions(+), 111 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 60115a1da96..0fe8e2a03a0 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1933,7 +1933,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
@@ -4870,16 +4870,21 @@ var KeepAlive = {
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (!name || (
-        (this.exclude && matches(this.exclude, name)) ||
-        (this.include && !matches(this.include, name))
-      )) {
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
-      var ref = this;
-      var cache = ref.cache;
-      var keys = ref.keys;
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
@@ -4968,7 +4973,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.6';
+Vue$3.version = '2.5.7';
 
 /*  */
 
@@ -9262,6 +9267,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+        warn$2(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -10302,9 +10316,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -10362,9 +10373,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 02b323f7091..0ca3f427fd8 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1931,7 +1931,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
@@ -4868,16 +4868,21 @@ var KeepAlive = {
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (!name || (
-        (this.exclude && matches(this.exclude, name)) ||
-        (this.include && !matches(this.include, name))
-      )) {
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
-      var ref = this;
-      var cache = ref.cache;
-      var keys = ref.keys;
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
@@ -4966,7 +4971,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.6';
+Vue$3.version = '2.5.7';
 
 /*  */
 
@@ -9260,6 +9265,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+        warn$2(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -10300,9 +10314,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -10360,9 +10371,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
diff --git a/dist/vue.js b/dist/vue.js
index fc3a0e30f81..b6973686f7a 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1937,7 +1937,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
@@ -4859,16 +4859,21 @@ var KeepAlive = {
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (!name || (
-        (this.exclude && matches(this.exclude, name)) ||
-        (this.include && !matches(this.include, name))
-      )) {
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
-      var ref = this;
-      var cache = ref.cache;
-      var keys = ref.keys;
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
@@ -4957,7 +4962,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.6';
+Vue$3.version = '2.5.7';
 
 /*  */
 
@@ -9251,6 +9256,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if ("development" !== 'production' && el.attrsMap['v-for']) {
+        warn$2(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -10291,9 +10305,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -10351,9 +10362,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 9e671d02a7a..1c8b6ffbfbd 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Si.call(e)}function s(e){return"[object RegExp]"===Si.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index ab56601fdc5..300015caf72 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1906,7 +1906,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
@@ -4866,16 +4866,21 @@ var KeepAlive = {
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (!name || (
-        (this.exclude && matches(this.exclude, name)) ||
-        (this.include && !matches(this.include, name))
-      )) {
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
-      var ref = this;
-      var cache = ref.cache;
-      var keys = ref.keys;
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
@@ -4964,7 +4969,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.6';
+Vue$3.version = '2.5.7';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index a4459ecf942..4b71362dcd8 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1904,7 +1904,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
@@ -4864,16 +4864,21 @@ var KeepAlive = {
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (!name || (
-        (this.exclude && matches(this.exclude, name)) ||
-        (this.include && !matches(this.include, name))
-      )) {
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
-      var ref = this;
-      var cache = ref.cache;
-      var keys = ref.keys;
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
@@ -4962,7 +4967,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.6';
+Vue$3.version = '2.5.7';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index c0338435a08..558c6c2b711 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1910,7 +1910,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
@@ -4855,16 +4855,21 @@ var KeepAlive = {
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (!name || (
-        (this.exclude && matches(this.exclude, name)) ||
-        (this.include && !matches(this.include, name))
-      )) {
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
-      var ref = this;
-      var cache = ref.cache;
-      var keys = ref.keys;
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
@@ -4953,7 +4958,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.6';
+Vue$3.version = '2.5.7';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index a8bcc9732dc..f4f5b61c973 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.6
+ * Vue.js v2.5.7
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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di={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ct(n,"postpatch",function(){di.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||Lo(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Fn),gr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Fn)),yr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Un(t,"change")}}},pi={model:di,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},vi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},hi={name:"transition",props:vi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||_t(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!_t(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,ct(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(_t(a))return u;var d,p=function(){d()};ct(c,"afterEnter",p),ct(c,"enterCancelled",p),ct(f,"delayLeave",function(t){d=t})}}return i}}},mi=y({tag:String,moveClass:String},vi);delete mi.mode;var yi={Transition:hi,TransitionGroup:{props:mi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Xn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(ai,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(ai,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ni)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&wo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=To,Oe.config.isReservedAttr=Co,Oe.config.getTagNamespace=function(t){return Io(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(To(t))return!1;if(t=t.toLowerCase(),null!=Do[t])return Do[t];var e=document.createElement(t);return t.indexOf("-")>-1?Do[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Do[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,pi),y(Oe.options.components,yi),Oe.prototype.__patch__=dr?fi:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,St(this,t,e)},Oe.nextTick(function(){ur.devtools&&Or&&Or.emit("init",Oe)},0),Oe});
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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 10c35d78812..80dda065eac 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -4027,6 +4027,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if ("development" !== 'production' && el.attrsMap['v-for']) {
+        warn$1(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -5584,9 +5593,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -5644,9 +5650,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
@@ -6089,7 +6104,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 70ccdae3756..9d37ab75e5b 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -3766,6 +3766,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+        warn$1(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -5323,9 +5332,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -5383,9 +5389,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
@@ -5828,7 +5843,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
     return
   }
   if (val.__ob__) {
@@ -8466,7 +8481,7 @@ function compileModule (files, basedir, runInNewContext) {
       : script.runInNewContext(sandbox);
     var m = { exports: {}};
     var r = function (file) {
-      file = path$2.join('.', file);
+      file = path$2.posix.join('.', file);
       if (files[file]) {
         return evaluateModule(file, sandbox, evaluatedFiles)
       } else if (basedir) {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 5572e81d1e3..30488814eb4 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.6",
+  "version": "2.5.7",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index c96f99cf5fb..77d01bb2fb8 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -3097,6 +3097,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if ("development" !== 'production' && el.attrsMap['v-for']) {
+        warn$1(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -4307,9 +4316,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -4367,9 +4373,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 204c21cba69..55d0fce55eb 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -2699,6 +2699,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+        warn$1(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -3909,9 +3918,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -3969,9 +3975,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 683af65f2ec..2a54a5688b3 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.6",
+  "version": "2.5.7",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From f9f74231a2e064861856396f57dc980a6de376e9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 20 Nov 2017 14:49:24 -0500
Subject: [PATCH 254/911] build: release 2.5.7

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 060f1bcf66b..aaed2cc06ab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.6",
+  "version": "2.5.7",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 6c47a9c9b47..e18bb5c0d3c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.6",
+  "version": "2.5.7",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From ebcef58645af1582ca3c8a19ec26967946970301 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 21 Nov 2017 09:06:19 -0500
Subject: [PATCH 255/911] fix: fix v-for alias deconstruct regression

fix #7096
---
 src/compiler/error-detector.js            |  2 +-
 test/unit/features/directives/for.spec.js | 19 ++++++++++++++++++-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/compiler/error-detector.js b/src/compiler/error-detector.js
index 094ec99aa29..e729c499a33 100644
--- a/src/compiler/error-detector.js
+++ b/src/compiler/error-detector.js
@@ -80,7 +80,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(`var ${ident}`)
+      new Function(`var ${ident}=_`)
     } catch (e) {
       errors.push(`invalid ${type} "${ident}" in expression: ${text.trim()}`)
     }
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index db92426b2d1..89a026e915a 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -446,7 +446,7 @@ describe('Directive v-for', () => {
     }).then(done)
   })
 
-  it('strings', done => {
+  it('should work with strings', done => {
     const vm = new Vue({
       data: {
         text: 'foo'
@@ -463,4 +463,21 @@ describe('Directive v-for', () => {
       expect(vm.$el.textContent).toMatch('f.o.o.b.a.r.')
     }).then(done)
   })
+
+  const supportsDeconstruct = (() => {
+    try {
+      new Function('var { foo } = bar')
+      return true
+    } catch (e) {}
+  })()
+
+  if (supportsDeconstruct) {
+    it('should support deconstruct syntax in alias position', () => {
+      const vm = new Vue({
+        data: { list: [{ foo: 'hi' }] },
+        template: '<div><div v-for="({ foo }, i) in list">{{ foo }}{{ i }}</div></div>'
+      }).$mount()
+      expect(vm.$el.textContent).toBe('hi0')
+    })
+  }
 })

From 0fdeae7290c8cbc5be6cba5799ee84eb988a2847 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 21 Nov 2017 09:42:17 -0500
Subject: [PATCH 256/911] build: build 2.5.8

---
 dist/vue.common.js                          | 6 +++---
 dist/vue.esm.js                             | 6 +++---
 dist/vue.js                                 | 6 +++---
 dist/vue.min.js                             | 4 ++--
 dist/vue.runtime.common.js                  | 4 ++--
 dist/vue.runtime.esm.js                     | 4 ++--
 dist/vue.runtime.js                         | 4 ++--
 dist/vue.runtime.min.js                     | 4 ++--
 packages/vue-server-renderer/basic.js       | 2 +-
 packages/vue-server-renderer/build.js       | 2 +-
 packages/vue-server-renderer/package.json   | 2 +-
 packages/vue-template-compiler/browser.js   | 2 +-
 packages/vue-template-compiler/build.js     | 2 +-
 packages/vue-template-compiler/package.json | 2 +-
 14 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 0fe8e2a03a0..d4d246fa03c 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4973,7 +4973,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.7';
+Vue$3.version = '2.5.8';
 
 /*  */
 
@@ -10381,7 +10381,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(("var " + ident));
+      new Function(("var " + ident + "=_"));
     } catch (e) {
       errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
     }
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 0ca3f427fd8..81396e31ddb 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4971,7 +4971,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.7';
+Vue$3.version = '2.5.8';
 
 /*  */
 
@@ -10379,7 +10379,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(("var " + ident));
+      new Function(("var " + ident + "=_"));
     } catch (e) {
       errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
     }
diff --git a/dist/vue.js b/dist/vue.js
index b6973686f7a..52bbe809cb8 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4962,7 +4962,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.7';
+Vue$3.version = '2.5.8';
 
 /*  */
 
@@ -10370,7 +10370,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(("var " + ident));
+      new Function(("var " + ident + "=_"));
     } catch (e) {
       errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
     }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 1c8b6ffbfbd..f8e49838767 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Si.call(e)}function s(e){return"[object RegExp]"===Si.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}function p(e,t){return ji.call(e,t)}function v(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}function h(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n}function m(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function y(e,t){for(var n in t)e[n]=t[n];return e}function g(e){for(var t={},n=0;n<e.length;n++)e[n]&&y(t,e[n]);return t}function _(e,t,n){}function b(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var i=Array.isArray(e),a=Array.isArray(t);if(i&&a)return e.length===t.length&&e.every(function(e,n){return b(e,t[n])});if(i||a)return!1;var s=Object.keys(e),c=Object.keys(t);return s.length===c.length&&s.every(function(n){return b(e[n],t[n])})}catch(e){return!1}}function $(e,t){for(var n=0;n<e.length;n++)if(b(e[n],t))return n;return-1}function C(e){var t=!1;return function(){t||(t=!0,e.apply(this,arguments))}}function w(e){var t=(e+"").charCodeAt(0);return 36===t||95===t}function x(e,t,n,r){Object.defineProperty(e,t,{value:n,enumerable:!!r,writable:!0,configurable:!0})}function k(e){if(!Vi.test(e)){var t=e.split(".");return function(e){for(var n=0;n<t.length;n++){if(!e)return;e=e[t[n]]}return e}}}function A(e){return"function"==typeof e&&/native code/.test(e.toString())}function O(e){lo.target&&fo.push(lo.target),lo.target=e}function S(){lo.target=fo.pop()}function T(e){return new po(void 0,void 0,void 0,String(e))}function E(e,t){var n=e.componentOptions,r=new po(e.tag,e.data,e.children,e.text,e.elm,e.context,n,e.asyncFactory);return r.ns=e.ns,r.isStatic=e.isStatic,r.key=e.key,r.isComment=e.isComment,r.isCloned=!0,t&&(e.children&&(r.children=j(e.children,!0)),n&&n.children&&(n.children=j(n.children,!0))),r}function j(e,t){for(var n=e.length,r=new Array(n),i=0;i<n;i++)r[i]=E(e[i],t);return r}function N(e,t,n){e.__proto__=t}function 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 300015caf72..f90db59dec3 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4969,7 +4969,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.7';
+Vue$3.version = '2.5.8';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 4b71362dcd8..1dc9da4d154 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4967,7 +4967,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.7';
+Vue$3.version = '2.5.8';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 558c6c2b711..b54715fd341 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -4958,7 +4958,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.7';
+Vue$3.version = '2.5.8';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index f4f5b61c973..7312dc7f838 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.7
+ * Vue.js v2.5.8
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r,o=E.remove.length+1;for(e(n)?n.listeners+=o:n=a(t.elm,o),e(r=t.componentInstance)&&e(r=r._vnode)&&e(r.data)&&C(r,n),r=0;r<E.remove.length;++r)E.remove[r](t,n);e(r=t.data.hook)&&e(r=r.remove)?r(t,n):n()}else s(t.elm)}function w(n,r,o,i,a){for(var s,u,l,f=0,d=0,p=r.length-1,v=r[0],h=r[p],m=o.length-1,y=o[0],g=o[m],C=!a;f<=p&&d<=m;)t(v)?v=r[++f]:t(h)?h=r[--p]:Ke(v,y)?($(v,y,i),v=r[++f],y=o[++d]):Ke(h,g)?($(h,g,i),h=r[--p],g=o[--m]):Ke(v,g)?($(v,g,i),C&&I.insertBefore(n,v.elm,I.nextSibling(h.elm)),v=r[++f],g=o[--m]):Ke(h,y)?($(h,y,i),C&&I.insertBefore(n,h.elm,v.elm),h=r[--p],y=o[++d]):(t(s)&&(s=Ge(r,f,p)),t(u=e(y.key)?s[y.key]:A(y,r,f,p))?c(y,i,n,v.elm):Ke(l=r[u],y)?($(l,y,i),r[u]=void 0,C&&I.insertBefore(n,l.elm,v.elm)):c(y,i,n,v.elm),y=o[++d]);f>p?_(n,t(o[m+1])?null:o[m+1].elm,o,d,m,i):d>m&&b(n,r,f,p)}function A(t,n,r,o){for(var i=r;i<o;i++){var a=n[i];if(e(a)&&Ke(t,a))return i}}function $(r,o,i,a){if(r!==o){var s=o.elm=r.elm;if(n(r.isAsyncPlaceholder))e(o.asyncFactory.resolved)?k(r.elm,o,i):o.isAsyncPlaceholder=!0;else if(n(o.isStatic)&&n(r.isStatic)&&o.key===r.key&&(n(o.isCloned)||n(o.isOnce)))o.componentInstance=r.componentInstance;else{var c,u=o.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,o);var l=r.children,f=o.children;if(e(u)&&h(o)){for(c=0;c<E.update.length;++c)E.update[c](r,o);e(c=u.hook)&&e(c=c.update)&&c(r,o)}t(o.text)?e(l)&&e(f)?l!==f&&w(s,l,f,i,a):e(f)?(e(r.text)&&I.setTextContent(s,""),_(s,null,f,0,f.length-1,i)):e(l)?b(s,l,0,l.length-1):e(r.text)&&I.setTextContent(s,""):r.text!==o.text&&I.setTextContent(s,o.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,o)}}}function x(t,r,o){if(n(o)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var i=0;i<r.length;++i)r[i].data.hook.insert(r[i])}function k(t,r,o,i){var a,s=r.tag,c=r.data,u=r.children;if(i=i||c&&c.pre,r.elm=t,n(r.isComment)&&e(r.asyncFactory))return r.isAsyncPlaceholder=!0,!0;if(e(c)&&(e(a=c.hook)&&e(a=a.init)&&a(r,!0),e(a=r.componentInstance)))return l(r,o),!0;if(e(s)){if(e(u))if(t.hasChildNodes())if(e(a=c)&&e(a=a.domProps)&&e(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var f=!0,d=t.firstChild,p=0;p<u.length;p++){if(!d||!k(d,u[p],o,i)){f=!1;break}d=d.nextSibling}if(!f||d)return!1}else v(r,u,o);if(e(c)){var h=!1;for(var y in c)if(!T(y)){h=!0,m(r,o);break}!h&&c.class&&ot(c.class)}}else t.data!==r.text&&(t.data=r.text);return!0}var O,S,E={},j=r.modules,I=r.nodeOps;for(O=0;O<Fo.length;++O)for(E[Fo[O]]=[],S=0;S<j.length;++S)e(j[S][Fo[O]])&&E[Fo[O]].push(j[S][Fo[O]]);var T=f("attrs,class,staticClass,staticStyle,key");return function(r,o,a,s,u,l){if(!t(o)){var f=!1,d=[];if(t(r))f=!0,c(o,d,u,l);else{var p=e(r.nodeType);if(!p&&Ke(r,o))$(r,o,d,s);else{if(p){if(1===r.nodeType&&r.hasAttribute(ar)&&(r.removeAttribute(ar),a=!0),n(a)&&k(r,o,d))return x(o,d,!0),r;r=i(r)}var v=r.elm,m=I.parentNode(v);if(c(o,d,v._leaveCb?null:m,I.nextSibling(v)),e(o.parent))for(var y=o.parent,_=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,_){for(var w=0;w<E.create.length;++w)E.create[w](Mo,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else qe(y);y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&g(r)}}return x(o,d,f),o.elm}e(r)&&g(r)}}({nodeOps:Po,modules:[Bo,Ho,qo,Ko,ti,dr?{create:Tn,activate:Tn,remove:function(t,e){!0!==t.data.show?En(t,e):e()}}:{}].concat(Vo)});yr&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Un(t,"input")});var di={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ct(n,"postpatch",function(){di.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||Lo(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Fn),gr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Fn)),yr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Un(t,"change")}}},pi={model:di,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},vi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},hi={name:"transition",props:vi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||_t(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!_t(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,ct(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(_t(a))return u;var d,p=function(){d()};ct(c,"afterEnter",p),ct(c,"enterCancelled",p),ct(f,"delayLeave",function(t){d=t})}}return i}}},mi=y({tag:String,moveClass:String},vi);delete mi.mode;var yi={Transition:hi,TransitionGroup:{props:mi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Xn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(ai,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(ai,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ni)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&wo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=To,Oe.config.isReservedAttr=Co,Oe.config.getTagNamespace=function(t){return Io(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(To(t))return!1;if(t=t.toLowerCase(),null!=Do[t])return Do[t];var e=document.createElement(t);return t.indexOf("-")>-1?Do[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Do[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,pi),y(Oe.options.components,yi),Oe.prototype.__patch__=dr?fi:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,St(this,t,e)},Oe.nextTick(function(){ur.devtools&&Or&&Or.emit("init",Oe)},0),Oe});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 80dda065eac..9d47673342e 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -5658,7 +5658,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(("var " + ident));
+      new Function(("var " + ident + "=_"));
     } catch (e) {
       errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
     }
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 9d37ab75e5b..1a23395ae40 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -5397,7 +5397,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(("var " + ident));
+      new Function(("var " + ident + "=_"));
     } catch (e) {
       errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
     }
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 30488814eb4..c5d326d5785 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.7",
+  "version": "2.5.8",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 77d01bb2fb8..7afc377182d 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -4381,7 +4381,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(("var " + ident));
+      new Function(("var " + ident + "=_"));
     } catch (e) {
       errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
     }
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 55d0fce55eb..472fedf5f94 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -3983,7 +3983,7 @@ function checkIdentifier (
 ) {
   if (typeof ident === 'string') {
     try {
-      new Function(("var " + ident));
+      new Function(("var " + ident + "=_"));
     } catch (e) {
       errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
     }
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 2a54a5688b3..5f5262135fe 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.7",
+  "version": "2.5.8",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From b0bbcbd152782bcc8d5ad5e9c9e5842e1daf1afb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 21 Nov 2017 09:42:18 -0500
Subject: [PATCH 257/911] build: release 2.5.8

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index aaed2cc06ab..7fa4f3d70f5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.7",
+  "version": "2.5.8",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index e18bb5c0d3c..3fa5d5adc7e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.7",
+  "version": "2.5.8",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 3554eb27269e151a0ef3d8c4ad9b29ec6664c471 Mon Sep 17 00:00:00 2001
From: Slee Woo <mail@sleewoo.com>
Date: Tue, 21 Nov 2017 17:25:30 +0200
Subject: [PATCH 258/911] fix(types): add Promise signature for
 bundleRenderer.renderToString (#7098)

* Make callback optional when providing context

Otherwise TypeScript compiler complains about `not assignable to parameter of type 'RenderCallback'`

* Update index.d.ts
---
 packages/vue-server-renderer/types/index.d.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/vue-server-renderer/types/index.d.ts b/packages/vue-server-renderer/types/index.d.ts
index e6c8d62dde9..9b5150a192d 100644
--- a/packages/vue-server-renderer/types/index.d.ts
+++ b/packages/vue-server-renderer/types/index.d.ts
@@ -18,6 +18,7 @@ interface Renderer {
 interface BundleRenderer {
   renderToString(callback: RenderCallback): void;
   renderToString(context: object, callback: RenderCallback): void;
+  renderToString(context: object): Promise<string>;
 
   renderToStream(context?: object): Readable;
 }

From fcc122931b504655c8255645d57612bc74c0f594 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 21 Nov 2017 10:28:30 -0500
Subject: [PATCH 259/911] fix(types): improve and test
 bundleRenderer.renderToString Promise types

---
 packages/vue-server-renderer/types/index.d.ts | 1 +
 types/test/ssr-test.ts                        | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/packages/vue-server-renderer/types/index.d.ts b/packages/vue-server-renderer/types/index.d.ts
index 9b5150a192d..66c7b4bf771 100644
--- a/packages/vue-server-renderer/types/index.d.ts
+++ b/packages/vue-server-renderer/types/index.d.ts
@@ -18,6 +18,7 @@ interface Renderer {
 interface BundleRenderer {
   renderToString(callback: RenderCallback): void;
   renderToString(context: object, callback: RenderCallback): void;
+  renderToString(): Promise<string>;
   renderToString(context: object): Promise<string>;
 
   renderToStream(context?: object): Readable;
diff --git a/types/test/ssr-test.ts b/types/test/ssr-test.ts
index a9377a48506..d0a8e5c701e 100644
--- a/types/test/ssr-test.ts
+++ b/types/test/ssr-test.ts
@@ -95,6 +95,14 @@ bundleRenderer.renderToString(context, (err, html) => {
   const res: string = html;
 });
 
+bundleRenderer.renderToString().then(html => {
+  const res: string = html;
+});
+
+bundleRenderer.renderToString(context).then(html => {
+  const res: string = html;
+});
+
 bundleRenderer.renderToStream(context).on('data', chunk => {
   const html = chunk.toString();
 });

From f93c1585f927aedfdd79e3d9d44da74edcd91155 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 21 Nov 2017 16:05:06 -0500
Subject: [PATCH 260/911] chore: fix BACKERS.md opencollective links

---
 BACKERS.md | 184 ++++++++++++++++++++++++++---------------------------
 1 file changed, 92 insertions(+), 92 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index f11656a8e31..951ec5d738b 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -29,8 +29,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Platinum via OpenCollective</h2>
 
-<!-- <a href="https://opencollective.com/vuejs/platinumsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/platinumsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/platinumsponsor/1/avatar.svg"></a> -->
+<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/1/avatar.svg"></a>
 
 <h2 align="center">Gold via Patreon</h2>
 
@@ -124,36 +124,36 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Gold via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/goldsponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/6/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/7/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/16/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/17/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/18/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/19/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/20/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/21/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/22/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/goldsponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/goldsponsor/29/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/goldsponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/29/avatar.svg"></a>
 
 <h2 align="center">Silver via Patreon</h2>
 
@@ -161,36 +161,36 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Silver via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/silversponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/6/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/7/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/16/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/17/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/18/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/19/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/20/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/21/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/22/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/silversponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/silversponsor/29/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silversponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/29/avatar.svg"></a>
 
 <h2 align="center">Bronze via Patreon</h2>
 
@@ -241,36 +241,36 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Bronze via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/bronzesponsor/0/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/1/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/2/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/3/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/4/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/5/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/6/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/7/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/8/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/9/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/10/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/11/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/12/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/13/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/14/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/15/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/16/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/17/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/18/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/19/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/20/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/21/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/22/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/23/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/24/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/25/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/26/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/27/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/28/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/bronzesponsor/29/website" target="_blank"><img src="https://opencollective.com/vuejs/bronzesponsor/29/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/29/avatar.svg"></a>
 
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From 3932a451a1419a97ea0200c5cb8096afe9a3e7e7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 15:26:39 -0500
Subject: [PATCH 261/911] fix(keep-alive): should not destroy active instance
 when pruning cache

fix #7105
---
 src/core/components/keep-alive.js             |  2 +-
 .../component/component-keep-alive.spec.js    | 28 +++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/core/components/keep-alive.js b/src/core/components/keep-alive.js
index d0ebe0a9172..53dd264aaa1 100644
--- a/src/core/components/keep-alive.js
+++ b/src/core/components/keep-alive.js
@@ -41,7 +41,7 @@ function pruneCacheEntry (
   current?: VNode
 ) {
   const cached = cache[key]
-  if (cached && cached !== current) {
+  if (cached && (!current || cached.tag !== current.tag)) {
     cached.componentInstance.$destroy()
   }
   cache[key] = null
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index dbae84fe974..b89fbdc9d65 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -656,6 +656,34 @@ describe('Component keep-alive', () => {
     }).then(done)
   })
 
+  // #7105
+  it('should not destroy active instance when pruning cache', done => {
+    const Foo = {
+      template: `<div>foo</div>`,
+      destroyed: jasmine.createSpy('destroyed')
+    }
+    const vm = new Vue({
+      template: `
+        <div>
+          <keep-alive :include="include">
+            <foo/>
+          </keep-alive>
+        </div>
+      `,
+      data: {
+        include: ['foo']
+      },
+      components: { Foo }
+    }).$mount()
+    // condition: a render where a previous component is reused
+    vm.include = ['foo']
+    waitForUpdate(() => {
+      vm.include = ['']
+    }).then(() => {
+      expect(Foo.destroyed).not.toHaveBeenCalled()
+    }).then(done)
+  })
+
   if (!isIE9) {
     it('with transition-mode out-in', done => {
       let next

From 604e081d0456ed136b24b5f759c608d153dfae93 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 16:37:24 -0500
Subject: [PATCH 262/911] fix: ensure functionalContext is cloned during slot
 clones

fix #7106
---
 .../instance/render-helpers/resolve-slots.js  |  2 +-
 src/core/vdom/create-functional-component.js  |  8 ++--
 src/core/vdom/patch.js                        |  4 +-
 src/core/vdom/vnode.js                        | 15 ++++---
 src/server/render.js                          |  4 +-
 .../features/component/component-slot.spec.js | 45 +++++++++++++++++++
 6 files changed, 63 insertions(+), 15 deletions(-)

diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 024fbbff7a3..0065e3c9523 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -20,7 +20,7 @@ export function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       const name = child.data.slot
diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index d749ab9a7de..ff00f240a22 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -49,8 +49,8 @@ function FunctionalRenderContext (
     this._c = (a, b, c, d) => {
       const vnode: ?VNode = createElement(contextVm, a, b, c, d, needNormalization)
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId
-        vnode.functionalContext = parent
+        vnode.fnScopeId = options._scopeId
+        vnode.fnContext = parent
       }
       return vnode
     }
@@ -91,8 +91,8 @@ export function createFunctionalComponent (
   const vnode = options.render.call(null, renderContext._c, renderContext)
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm
-    vnode.functionalOptions = options
+    vnode.fnContext = contextVm
+    vnode.fnOptions = options
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot
     }
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index f8f28585429..368eb41afc0 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -294,7 +294,7 @@ export function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     let i
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '')
     } else {
       let ancestor = vnode
@@ -308,7 +308,7 @@ export function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '')
diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 33b5612fe6e..838f9f1e155 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -24,9 +24,9 @@ export default class VNode {
   asyncMeta: Object | void;
   isAsyncPlaceholder: boolean;
   ssrContext: Object | void;
-  functionalContext: Component | void; // real context vm for functional nodes
-  functionalOptions: ?ComponentOptions; // for SSR caching
-  functionalScopeId: ?string; // functioanl scope id support
+  fnContext: Component | void; // real context vm for functional nodes
+  fnOptions: ?ComponentOptions; // for SSR caching
+  fnScopeId: ?string; // functioanl scope id support
 
   constructor (
     tag?: string,
@@ -45,9 +45,9 @@ export default class VNode {
     this.elm = elm
     this.ns = undefined
     this.context = context
-    this.functionalContext = undefined
-    this.functionalOptions = undefined
-    this.functionalScopeId = undefined
+    this.fnContext = undefined
+    this.fnOptions = undefined
+    this.fnScopeId = undefined
     this.key = data && data.key
     this.componentOptions = componentOptions
     this.componentInstance = undefined
@@ -101,6 +101,9 @@ export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
   cloned.isStatic = vnode.isStatic
   cloned.key = vnode.key
   cloned.isComment = vnode.isComment
+  cloned.fnContext = vnode.fnContext
+  cloned.fnOptions = vnode.fnOptions
+  cloned.fnScopeId = vnode.fnScopeId
   cloned.isCloned = true
   if (deep) {
     if (vnode.children) {
diff --git a/src/server/render.js b/src/server/render.js
index 0ca49f7c2ba..0400aa7f3b5 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -252,8 +252,8 @@ function renderElement (el, isRoot, context) {
     el.data.attrs[SSR_ATTR] = 'true'
   }
 
-  if (el.functionalOptions) {
-    registerComponentForCache(el.functionalOptions, write)
+  if (el.fnOptions) {
+    registerComponentForCache(el.fnOptions, write)
   }
 
   const startTag = renderStartingTag(el, context)
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 4e6deac39cb..28d6555ee65 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -779,4 +779,49 @@ describe('Component slot', () => {
 
     expect(vm.$el.innerHTML).toBe('<div class="foo"><div class="bar">fallback</div></div>')
   })
+
+  // #7106
+  it('should not lose functional slot across renders', done => {
+    const One = {
+      data: () => ({
+        foo: true
+      }),
+      render (h) {
+        this.foo
+        return h('div', this.$slots.slot)
+      }
+    }
+
+    const Two = {
+      render (h) {
+        return h('span', this.$slots.slot)
+      }
+    }
+
+    const Three = {
+      functional: true,
+      render: (h, { children }) => h('span', children)
+    }
+
+    const vm = new Vue({
+      template: `
+        <div>
+          <one ref="one">
+            <two slot="slot">
+              <three slot="slot">hello</three>
+            </two>
+          </one>
+        </div>
+      `,
+      components: { One, Two, Three }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('hello')
+    // trigger re-render of <one>
+    vm.$refs.one.foo = false
+    waitForUpdate(() => {
+      // should still be there
+      expect(vm.$el.textContent).toBe('hello')
+    }).then(done)
+  })
 })

From dd21eacc33fee8f8e6151fe1dcb419644f8f98c2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 17:12:34 -0500
Subject: [PATCH 263/911] fix: fix async component resolving in sibling mounted
 hook

fix #7107
---
 src/core/instance/lifecycle.js                |  5 +++-
 src/core/observer/watcher.js                  |  6 +++-
 .../component/component-async.spec.js         | 29 +++++++++++++++++++
 3 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index db7bf286f11..0ac1926e7e9 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -193,7 +193,10 @@ export function mountComponent (
     }
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop)
+  // we set this to vm._watcher inside the wathcer's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */)
   hydrating = false
 
   // manually mounted instance, call mounted on self
diff --git a/src/core/observer/watcher.js b/src/core/observer/watcher.js
index 3727bd53fb9..48a2e612e28 100644
--- a/src/core/observer/watcher.js
+++ b/src/core/observer/watcher.js
@@ -44,9 +44,13 @@ export default class Watcher {
     vm: Component,
     expOrFn: string | Function,
     cb: Function,
-    options?: Object
+    options?: ?Object,
+    isRenderWatcher?: boolean
   ) {
     this.vm = vm
+    if (isRenderWatcher) {
+      vm._watcher = this
+    }
     vm._watchers.push(this)
     // options
     if (options) {
diff --git a/test/unit/features/component/component-async.spec.js b/test/unit/features/component/component-async.spec.js
index a63b8c0e0da..889cb7145eb 100644
--- a/test/unit/features/component/component-async.spec.js
+++ b/test/unit/features/component/component-async.spec.js
@@ -342,5 +342,34 @@ describe('Component async', () => {
         done()
       }, 50)
     })
+
+    // #7107
+    it(`should work when resolving sync in sibling component's mounted hook`, done => {
+      let resolveTwo
+
+      const vm = new Vue({
+        template: `<div><one/> <two/></div>`,
+        components: {
+          one: {
+            template: `<div>one</div>`,
+            mounted () {
+              resolveTwo()
+            }
+          },
+          two: resolve => {
+            resolveTwo = () => {
+              resolve({
+                template: `<div>two</div>`
+              })
+            }
+          }
+        }
+      }).$mount()
+
+      expect(vm.$el.textContent).toBe('one ')
+      waitForUpdate(() => {
+        expect(vm.$el.textContent).toBe('one two')
+      }).then(done)
+    })
   })
 })

From 70fb68b0b092eaefeb6289f5dea3852b72e7743f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 17:57:31 -0500
Subject: [PATCH 264/911] chore: fix comment typo

---
 src/core/instance/lifecycle.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 0ac1926e7e9..9280de9a81f 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -193,7 +193,7 @@ export function mountComponent (
     }
   }
 
-  // we set this to vm._watcher inside the wathcer's constructor
+  // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
   new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */)

From df37292f77c813b04c018e1b5865f389ecce75bd Mon Sep 17 00:00:00 2001
From: Robert Martin <rmartin@rmart.in>
Date: Thu, 23 Nov 2017 10:20:19 -0500
Subject: [PATCH 265/911] chore: fix comment typo (#7113)

Random find :)
---
 build/release.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/release.sh b/build/release.sh
index 8452944ef8b..f47cec02b7f 100644
--- a/build/release.sh
+++ b/build/release.sh
@@ -20,7 +20,7 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
     npm run test:ssr
   fi
 
-  # Sauce Labs tests has a decent change of failing
+  # Sauce Labs tests has a decent chance of failing
   # so we usually manually run them before running the release script.
 
   # if [[ -z $SKIP_SAUCE ]]; then

From 14e99086c02f4bcda55e639fb0baf2c664591448 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 24 Nov 2017 09:23:59 -0500
Subject: [PATCH 266/911] fix(types): add missing ssr renderToString signature

---
 packages/vue-server-renderer/types/index.d.ts | 1 +
 types/test/ssr-test.ts                        | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/packages/vue-server-renderer/types/index.d.ts b/packages/vue-server-renderer/types/index.d.ts
index 66c7b4bf771..1c7e8bdd42c 100644
--- a/packages/vue-server-renderer/types/index.d.ts
+++ b/packages/vue-server-renderer/types/index.d.ts
@@ -11,6 +11,7 @@ interface Renderer {
   renderToString(vm: Vue, callback: RenderCallback): void;
   renderToString(vm: Vue, context: object, callback: RenderCallback): void;
   renderToString(vm: Vue): Promise<string>;
+  renderToString(vm: Vue, context: object): Promise<string>;
 
   renderToStream(vm: Vue, context?: object): Readable;
 }
diff --git a/types/test/ssr-test.ts b/types/test/ssr-test.ts
index d0a8e5c701e..ed6409a316d 100644
--- a/types/test/ssr-test.ts
+++ b/types/test/ssr-test.ts
@@ -46,6 +46,14 @@ renderer.renderToString(app)
     throw err;
   });
 
+renderer.renderToString(app, context)
+  .then(html => {
+    const res: string = html;
+  })
+  .catch(err => {
+    throw err;
+  });
+
 renderer.renderToStream(app, context).on('data', chunk => {
   const html = chunk.toString();
 });

From aa8262540ac0115d56b53863302b9f8e69f8a03d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 24 Nov 2017 10:09:04 -0500
Subject: [PATCH 267/911] fix: fix v-for iterator parsing destructuring +
 parens without index

---
 src/compiler/parser/index.js              |  5 +--
 test/unit/features/directives/for.spec.js | 12 +++----
 test/unit/modules/compiler/parser.spec.js | 39 +++++++++++++++++++++++
 3 files changed, 48 insertions(+), 8 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index df75cac91ac..e971524e21b 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -22,7 +22,8 @@ import {
 export const onRE = /^@|^v-on:/
 export const dirRE = /^v-|^@|^:/
 export const forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/
-export const forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/
+export const forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/
+const stripParensRE = /^\(|\)$/g
 
 const argRE = /:(.*)$/
 const bindRE = /^:|^v-bind:/
@@ -364,7 +365,7 @@ export function processFor (el: ASTElement) {
         el.iterator2 = iteratorMatch[3].trim()
       }
     } else {
-      el.alias = alias
+      el.alias = alias.replace(stripParensRE, '')
     }
   }
 }
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index 89a026e915a..9f778b93bf6 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -464,20 +464,20 @@ describe('Directive v-for', () => {
     }).then(done)
   })
 
-  const supportsDeconstruct = (() => {
+  const supportsDestructuring = (() => {
     try {
       new Function('var { foo } = bar')
       return true
     } catch (e) {}
   })()
 
-  if (supportsDeconstruct) {
-    it('should support deconstruct syntax in alias position', () => {
+  if (supportsDestructuring) {
+    it('should support destructuring syntax in alias position', () => {
       const vm = new Vue({
-        data: { list: [{ foo: 'hi' }] },
-        template: '<div><div v-for="({ foo }, i) in list">{{ foo }}{{ i }}</div></div>'
+        data: { list: [{ foo: 'hi', bar: 'ho' }] },
+        template: '<div><div v-for="({ foo, bar }, i) in list">{{ foo }} {{ bar }} {{ i }}</div></div>'
       }).$mount()
-      expect(vm.$el.textContent).toBe('hi0')
+      expect(vm.$el.textContent).toBe('hi ho 0')
     })
   }
 })
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index c06ac5ba2f3..4957da1cb77 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -283,6 +283,45 @@ describe('parser', () => {
     expect(liAst.key).toBe('item.uid')
   })
 
+  it('v-for directive destructuring', () => {
+    let ast = parse('<ul><li v-for="{ foo } in items"></li></ul>', baseOptions)
+    let liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo }')
+
+    // with paren
+    ast = parse('<ul><li v-for="({ foo }) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo }')
+
+    // multi-var destructuring
+    ast = parse('<ul><li v-for="{ foo, bar, baz } in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo, bar, baz }')
+
+    // multi-var destructuring with paren
+    ast = parse('<ul><li v-for="({ foo, bar, baz }) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo, bar, baz }')
+
+    // with index
+    ast = parse('<ul><li v-for="({ foo }, i) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo }')
+    expect(liAst.iterator1).toBe('i')
+
+    // multi-var destructuring with index
+    ast = parse('<ul><li v-for="({ foo, bar, baz }, i) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo, bar, baz }')
+    expect(liAst.iterator1).toBe('i')
+  })
+
   it('v-for directive invalid syntax', () => {
     parse('<ul><li v-for="item into items"></li></ul>', baseOptions)
     expect('Invalid v-for expression').toHaveBeenWarned()

From 8b43c81ed432d05fdb91badebcbcb4523bbdeddb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 24 Nov 2017 10:16:07 -0500
Subject: [PATCH 268/911] ci: bump transition unit test duration

---
 test/unit/karma.base.config.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/karma.base.config.js b/test/unit/karma.base.config.js
index 68600302598..24b4a6ada52 100644
--- a/test/unit/karma.base.config.js
+++ b/test/unit/karma.base.config.js
@@ -19,7 +19,7 @@ var webpackConfig = {
       __WEEX__: false,
       'process.env': {
         NODE_ENV: '"development"',
-        TRANSITION_DURATION: 50,
+        TRANSITION_DURATION: process.env.CI ? 100 : 50,
         TRANSITION_BUFFER: 10
       }
     })

From a71e653108e4ba56a70107662f3ee30cead59c18 Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Mon, 27 Nov 2017 22:28:38 +0800
Subject: [PATCH 269/911] fix(types): bump ts version and fix typing bugs
 (#7135)

---
 package-lock.json          | 62 +++++++++++++++++++-------------------
 package.json               |  2 +-
 types/options.d.ts         |  3 +-
 types/test/options-test.ts |  7 +++--
 types/vue.d.ts             |  8 ++---
 5 files changed, 42 insertions(+), 40 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 7fa4f3d70f5..bb9763d321a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -42,16 +42,6 @@
         "@types/uglify-js": "2.6.29"
       }
     },
-    "JSONStream": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
-      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
-      "dev": true,
-      "requires": {
-        "jsonparse": "1.3.1",
-        "through": "2.3.8"
-      }
-    },
     "abbrev": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
@@ -2129,8 +2119,8 @@
       "integrity": "sha512-8od6g684Fhi5Vpp4ABRv/RBsW1AY6wSHbJHEK6FGTv+8jvAAnlABniZu/FVmX9TcirkHepaEsa1QGkRvbg0CKw==",
       "dev": true,
       "requires": {
-        "JSONStream": "1.3.1",
         "is-text-path": "1.0.1",
+        "JSONStream": "1.3.1",
         "lodash": "4.17.4",
         "meow": "3.7.0",
         "split2": "2.1.1",
@@ -4310,22 +4300,22 @@
             }
           }
         },
-        "string-width": {
-          "version": "1.0.2",
+        "string_decoder": {
+          "version": "1.0.1",
           "bundled": true,
           "dev": true,
           "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
+            "safe-buffer": "5.0.1"
           }
         },
-        "string_decoder": {
-          "version": "1.0.1",
+        "string-width": {
+          "version": "1.0.2",
           "bundled": true,
           "dev": true,
           "requires": {
-            "safe-buffer": "5.0.1"
+            "code-point-at": "1.1.0",
+            "is-fullwidth-code-point": "1.0.0",
+            "strip-ansi": "3.0.1"
           }
         },
         "stringstream": {
@@ -5531,6 +5521,16 @@
       "integrity": "sha1-T9kss04OnbPInIYi7PUfm5eMbLk=",
       "dev": true
     },
+    "JSONStream": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
+      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
+      "dev": true,
+      "requires": {
+        "jsonparse": "1.3.1",
+        "through": "2.3.8"
+      }
+    },
     "jsprim": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -8387,6 +8387,15 @@
         "xtend": "4.0.1"
       }
     },
+    "string_decoder": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
+    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -8398,15 +8407,6 @@
         "strip-ansi": "3.0.1"
       }
     },
-    "string_decoder": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true,
-      "requires": {
-        "safe-buffer": "5.1.1"
-      }
-    },
     "stringstream": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
@@ -8726,9 +8726,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "2.5.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.5.2.tgz",
-      "integrity": "sha1-A4qV99m7tCCxvzW6MdTFwd0//jQ=",
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.6.1.tgz",
+      "integrity": "sha1-7znN6ierrAtQAkLWcmq5DgyEZjE=",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index 3fa5d5adc7e..5fd5bb9a783 100644
--- a/package.json
+++ b/package.json
@@ -122,7 +122,7 @@
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
     "shelljs": "^0.7.8",
-    "typescript": "^2.5.2",
+    "typescript": "^2.6.1",
     "uglify-js": "^3.0.15",
     "webpack": "^2.6.1",
     "weex-js-runtime": "^0.23.0",
diff --git a/types/options.d.ts b/types/options.d.ts
index c4d822f69ef..4846b11cd0f 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -9,8 +9,7 @@ type Constructor = {
 export type Component<Data=DefaultData<Vue>, Methods=DefaultMethods<Vue>, Computed=DefaultComputed, Props=DefaultProps> =
   | typeof Vue
   | FunctionalComponentOptions<Props>
-  | ThisTypedComponentOptionsWithArrayProps<Vue, Data, Methods, Computed, keyof Props>
-  | ThisTypedComponentOptionsWithRecordProps<Vue, Data, Methods, Computed, Props>;
+  | ComponentOptions<Vue, Data, Methods, Computed, Props>
 
 interface EsModuleComponent {
   default: Component
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index e7cd8bacdab..e1edff3f5ad 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -196,7 +196,7 @@ Vue.component('component', {
       bind() {},
       inserted() {},
       update() {},
-      componentMounted() {},
+      componentUpdated() {},
       unbind() {}
     },
     b(el, binding, vnode, oldVnode) {
@@ -310,7 +310,10 @@ Vue.component("async-component", ((resolve, reject) => {
     resolve(Vue.component("component"));
   }, 0);
   return new Promise((resolve) => {
-    resolve({ functional: true });
+    resolve({
+      functional: true,
+      render(h: CreateElement) { return h('div') }
+    });
   })
 }));
 
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 2b025150bc7..cd3204af57b 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -16,8 +16,8 @@ import { VNode, VNodeData, VNodeChildren, ScopedSlot } from "./vnode";
 import { PluginFunction, PluginObject } from "./plugin";
 
 export interface CreateElement {
-  (tag?: string | Component<any, any, any, any> | AsyncComponent<any, any, any, any>, children?: VNodeChildren): VNode;
-  (tag?: string | Component<any, any, any, any> | AsyncComponent<any, any, any, any>, data?: VNodeData, children?: VNodeChildren): VNode;
+  (tag?: string | Component<any, any, any, any> | AsyncComponent<any, any, any, any> | (() => Component), children?: VNodeChildren): VNode;
+  (tag?: string | Component<any, any, any, any> | AsyncComponent<any, any, any, any> | (() => Component), data?: VNodeData, children?: VNodeChildren): VNode;
 }
 
 export interface Vue {
@@ -72,7 +72,7 @@ export interface VueConstructor<V extends Vue = Vue> {
 
   extend<PropNames extends string = never>(definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
   extend<Props>(definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
-  extend<Data, Methods, Computed, PropNames extends string>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
+  extend<Data, Methods, Computed, PropNames extends string = never>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
   extend<Data, Methods, Computed, Props>(options?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
   extend(options?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 
@@ -94,7 +94,7 @@ export interface VueConstructor<V extends Vue = Vue> {
   component<Data, Methods, Computed, Props>(id: string, definition: AsyncComponent<Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
   component<PropNames extends string>(id: string, definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
   component<Props>(id: string, definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
-  component<Data, Methods, Computed, PropNames extends string>(id: string, definition?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
+  component<Data, Methods, Computed, PropNames extends string = never>(id: string, definition?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
   component<Data, Methods, Computed, Props>(id: string, definition?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
   component(id: string, definition?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 

From d2e1d49c41ac633ea9410e1062b8e3e01f9d6b6d Mon Sep 17 00:00:00 2001
From: Zen <Zzzen@users.noreply.github.com>
Date: Mon, 27 Nov 2017 22:30:58 +0800
Subject: [PATCH 270/911] fix(types): use object and string instead of Object
 and String (#7126)

---
 types/options.d.ts | 8 ++++----
 types/vnode.d.ts   | 8 ++++----
 types/vue.d.ts     | 6 +++---
 3 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 4846b11cd0f..8401a93b983 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -58,12 +58,12 @@ export interface ComponentOptions<
   PropsDef=PropsDefinition<DefaultProps>> {
   data?: Data;
   props?: PropsDef;
-  propsData?: Object;
+  propsData?: object;
   computed?: Accessors<Computed>;
   methods?: Methods;
   watch?: Record<string, WatchOptionsWithHandler<any> | WatchHandler<any> | string>;
 
-  el?: Element | String;
+  el?: Element | string;
   template?: string;
   render?(createElement: CreateElement): VNode;
   renderError?: (h: () => VNode, err: Error) => VNode;
@@ -83,10 +83,10 @@ export interface ComponentOptions<
 
   directives?: { [key: string]: DirectiveFunction | DirectiveOptions };
   components?: { [key: string]: Component<any, any, any, any> | AsyncComponent<any, any, any, any> };
-  transitions?: { [key: string]: Object };
+  transitions?: { [key: string]: object };
   filters?: { [key: string]: Function };
 
-  provide?: Object | (() => Object);
+  provide?: object | (() => object);
   inject?: InjectOptions;
 
   model?: {
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index ae72065f9b8..2fd2ef13c59 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -27,8 +27,8 @@ export interface VNode {
 
 export interface VNodeComponentOptions {
   Ctor: typeof Vue;
-  propsData?: Object;
-  listeners?: Object;
+  propsData?: object;
+  listeners?: object;
   children?: VNodeChildren;
   tag?: string;
 }
@@ -42,14 +42,14 @@ export interface VNodeData {
   staticClass?: string;
   class?: any;
   staticStyle?: { [key: string]: any };
-  style?: Object[] | Object;
+  style?: object[] | object;
   props?: { [key: string]: any };
   attrs?: { [key: string]: any };
   domProps?: { [key: string]: any };
   hook?: { [key: string]: Function };
   on?: { [key: string]: Function | Function[] };
   nativeOn?: { [key: string]: Function | Function[] };
-  transition?: Object;
+  transition?: object;
   show?: boolean;
   inlineTemplate?: {
     render: Function;
diff --git a/types/vue.d.ts b/types/vue.d.ts
index cd3204af57b..e1431453dd9 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -37,7 +37,7 @@ export interface Vue {
   readonly $attrs: Record<string, string>;
   readonly $listeners: Record<string, Function | Function[]>;
 
-  $mount(elementOrSelector?: Element | String, hydrating?: boolean): this;
+  $mount(elementOrSelector?: Element | string, hydrating?: boolean): this;
   $forceUpdate(): void;
   $destroy(): void;
   $set: typeof Vue.set;
@@ -78,9 +78,9 @@ export interface VueConstructor<V extends Vue = Vue> {
 
   nextTick(callback: () => void, context?: any[]): void;
   nextTick(): Promise<void>
-  set<T>(object: Object, key: string, value: T): T;
+  set<T>(object: object, key: string, value: T): T;
   set<T>(array: T[], key: number, value: T): T;
-  delete(object: Object, key: string): void;
+  delete(object: object, key: string): void;
   delete<T>(array: T[], key: number): void;
 
   directive(

From 0f7c443dca800204bc2e00876365869ee79e2d7b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Nov 2017 12:13:37 -0500
Subject: [PATCH 271/911] fix: block unnecessary input event on textarea
 placeholder in IE

close #7138
---
 src/platforms/web/runtime/modules/attrs.js    | 20 +++++++++++++++++--
 .../features/directives/model-text.spec.js    | 19 +++++++++++++++++-
 2 files changed, 36 insertions(+), 3 deletions(-)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index 317316d8507..729802cdb4e 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { isIE9, isEdge } from 'core/util/env'
+import { isIE, isIE9, isEdge } from 'core/util/env'
 
 import {
   extend,
@@ -44,7 +44,7 @@ function updateAttrs (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   // #4391: in IE9, setting type can reset value for input[type=radio]
   // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value)
   }
   for (key in oldAttrs) {
@@ -84,6 +84,22 @@ function setAttr (el: Element, key: string, value: any) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key)
     } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        const blocker = e => {
+          e.stopImmediatePropagation()
+          el.removeEventListener('input', blocker)
+        }
+        el.addEventListener('input', blocker)
+        el.__ieph = true /* IE placeholder patched */
+      }
       el.setAttribute(key, value)
     }
   }
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 9cc76b852a9..7aae24b654e 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -1,5 +1,5 @@
 import Vue from 'vue'
-import { isIE9, isAndroid } from 'core/util/env'
+import { isIE9, isIE, isAndroid } from 'core/util/env'
 
 describe('Directive v-model text', () => {
   it('should update value both ways', done => {
@@ -412,4 +412,21 @@ describe('Directive v-model text', () => {
       }).then(done)
     })
   }
+
+  // #7138
+  if (isIE && !isIE9) {
+    it('should not fire input on initial render of textarea with placeholder in IE10/11', done => {
+      const el = document.createElement('div')
+      document.body.appendChild(el)
+      const vm = new Vue({
+        el,
+        data: { foo: null },
+        template: `<textarea v-model="foo" placeholder="bar"></textarea>`
+      })
+      setTimeout(() => {
+        expect(vm.foo).toBe(null)
+        done()
+      }, 17)
+    })
+  }
 })

From 1c1621d96f61f07f8007000f92d1d2e23d3b42a3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Nov 2017 12:24:17 -0500
Subject: [PATCH 272/911] chore: fix flow

---
 src/platforms/web/runtime/modules/attrs.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index 729802cdb4e..0034d35e81d 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -98,6 +98,7 @@ function setAttr (el: Element, key: string, value: any) {
           el.removeEventListener('input', blocker)
         }
         el.addEventListener('input', blocker)
+        // $flow-disable-line
         el.__ieph = true /* IE placeholder patched */
       }
       el.setAttribute(key, value)

From c865836addac36f16d547427f640922b48ee2e78 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Nov 2017 12:40:39 -0500
Subject: [PATCH 273/911] build: tweak release script to generate note before
 tagging

---
 build/release.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/build/release.sh b/build/release.sh
index f47cec02b7f..ea2acf2ff99 100644
--- a/build/release.sh
+++ b/build/release.sh
@@ -60,6 +60,9 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
     packages/vue-server-renderer/client-plugin.js \
     packages/vue-template-compiler/build.js
   git commit -m "build: build $VERSION"
+  # generate release note
+  npm run release:note
+  # tag version
   npm version $VERSION --message "build: release $VERSION"
 
   # publish

From 55a719c93aeffb8176fcc7193aa3a813cac3099d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Nov 2017 12:43:30 -0500
Subject: [PATCH 274/911] build: build 2.5.9

---
 dist/vue.common.js                          |    64 +-
 dist/vue.esm.browser.js                     | 10733 ++++++++++++++++++
 dist/vue.esm.js                             |    64 +-
 dist/vue.js                                 |    64 +-
 dist/vue.min.js                             |     4 +-
 dist/vue.runtime.common.js                  |    59 +-
 dist/vue.runtime.esm.js                     |    59 +-
 dist/vue.runtime.js                         |    59 +-
 dist/vue.runtime.min.js                     |     4 +-
 packages/vue-server-renderer/basic.js       |    34 +-
 packages/vue-server-renderer/build.js       |    34 +-
 packages/vue-server-renderer/package.json   |     2 +-
 packages/vue-template-compiler/browser.js   |    11 +-
 packages/vue-template-compiler/build.js     |    11 +-
 packages/vue-template-compiler/package.json |     2 +-
 packages/weex-template-compiler/build.js    |  1063 +-
 packages/weex-vue-framework/factory.js      |   893 +-
 packages/weex-vue-framework/index.js        |    54 -
 18 files changed, 12214 insertions(+), 1000 deletions(-)
 create mode 100644 dist/vue.esm.browser.js

diff --git a/dist/vue.common.js b/dist/vue.common.js
index d4d246fa03c..e0418ccc95b 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -717,9 +717,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -778,6 +778,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -2524,7 +2527,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -2744,7 +2747,10 @@ function mountComponent (
     };
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop);
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3031,9 +3037,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -3944,8 +3954,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -3986,8 +3996,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -4822,7 +4832,7 @@ function pruneCacheEntry (
   current
 ) {
   var cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
     cached$$1.componentInstance.$destroy();
   }
   cache[key] = null;
@@ -4973,7 +4983,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.8';
+Vue$3.version = '2.5.9';
 
 /*  */
 
@@ -5572,7 +5582,7 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '');
     } else {
       var ancestor = vnode;
@@ -5586,7 +5596,7 @@ function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -6176,7 +6186,7 @@ function updateAttrs (oldVnode, vnode) {
   // #4391: in IE9, setting type can reset value for input[type=radio]
   // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6216,6 +6226,23 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
       el.setAttribute(key, value);
     }
   }
@@ -8830,7 +8857,8 @@ function parseHTML (html, options) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
@@ -9171,7 +9199,7 @@ function processFor (el) {
         el.iterator2 = iteratorMatch[3].trim();
       }
     } else {
-      el.alias = alias;
+      el.alias = alias.replace(stripParensRE, '');
     }
   }
 }
diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
new file mode 100644
index 00000000000..d818935dbd5
--- /dev/null
+++ b/dist/vue.esm.browser.js
@@ -0,0 +1,10733 @@
+/*!
+ * Vue.js v2.5.8
+ * (c) 2014-2017 Evan You
+ * Released under the MIT License.
+ */
+/*  */
+
+const emptyObject = Object.freeze({});
+
+// these helpers produces better vm code in JS engines due to their
+// explicitness and function inlining
+function isUndef (v) {
+  return v === undefined || v === null
+}
+
+function isDef (v) {
+  return v !== undefined && v !== null
+}
+
+function isTrue (v) {
+  return v === true
+}
+
+function isFalse (v) {
+  return v === false
+}
+
+/**
+ * Check if value is primitive
+ */
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    typeof value === 'boolean'
+  )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value e.g. [object Object]
+ */
+const _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function isRegExp (v) {
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  const n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+  return val == null
+    ? ''
+    : typeof val === 'object'
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
+
+/**
+ * Convert a input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+  const n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  const map = Object.create(null);
+  const list = str.split(',');
+  for (let i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? val => map[val.toLowerCase()]
+    : val => map[val]
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+const isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if a attribute is a reserved attribute.
+ */
+const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    const index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether the object has the property.
+ */
+const hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  const cache = Object.create(null);
+  return (function cachedFn (str) {
+    const hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+const camelizeRE = /-(\w)/g;
+const camelize = cached((str) => {
+  return str.replace(camelizeRE, (_, c) => c ? c.toUpperCase() : '')
+});
+
+/**
+ * Capitalize a string.
+ */
+const capitalize = cached((str) => {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+const hyphenateRE = /\B([A-Z])/g;
+const hyphenate = cached((str) => {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind, faster than native
+ */
+function bind (fn, ctx) {
+  function boundFn (a) {
+    const l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+  // record original fn length
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+  start = start || 0;
+  let i = list.length - start;
+  const ret = new Array(i);
+  while (i--) {
+    ret[i] = list[i + start];
+  }
+  return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (const key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+  const res = {};
+  for (let i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i]);
+    }
+  }
+  return res
+}
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+const no = (a, b, c) => false;
+
+/**
+ * Return same value
+ */
+const identity = (_) => _;
+
+/**
+ * Generate a static keys string from compiler modules.
+ */
+function genStaticKeys (modules) {
+  return modules.reduce((keys, m) => {
+    return keys.concat(m.staticKeys || [])
+  }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+  if (a === b) return true
+  const isObjectA = isObject(a);
+  const isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      const isArrayA = Array.isArray(a);
+      const isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every((e, i) => {
+          return looseEqual(e, b[i])
+        })
+      } else if (!isArrayA && !isArrayB) {
+        const keysA = Object.keys(a);
+        const keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(key => {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
+function looseIndexOf (arr, val) {
+  for (let i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) return i
+  }
+  return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+  let called = false;
+  return function () {
+    if (!called) {
+      called = true;
+      fn.apply(this, arguments);
+    }
+  }
+}
+
+const SSR_ATTR = 'data-server-rendered';
+
+const ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+const LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured'
+];
+
+/*  */
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/*  */
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+  const c = (str + '').charCodeAt(0);
+  return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/**
+ * Parse simple path.
+ */
+const bailRE = /[^\w.$]/;
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  const segments = path.split('.');
+  return function (obj) {
+    for (let i = 0; i < segments.length; i++) {
+      if (!obj) return
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
+/*  */
+
+
+// can we use __proto__?
+const hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+const inBrowser = typeof window !== 'undefined';
+const inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+const weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+const UA = inBrowser && window.navigator.userAgent.toLowerCase();
+const isIE = UA && /msie|trident/.test(UA);
+const isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+const isEdge = UA && UA.indexOf('edge/') > 0;
+const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+const nativeWatch = ({}).watch;
+
+let supportsPassive = false;
+if (inBrowser) {
+  try {
+    const opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+let _isServer;
+const isServerRendering = () => {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+const devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+const hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+let _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = class Set   {
+    
+    constructor () {
+      this.set = Object.create(null);
+    }
+    has (key) {
+      return this.set[key] === true
+    }
+    add (key) {
+      this.set[key] = true;
+    }
+    clear () {
+      this.set = Object.create(null);
+    }
+  };
+}
+
+/*  */
+
+let warn = noop;
+let tip = noop;
+let generateComponentTrace = (noop); // work around flow check
+let formatComponentName = (noop);
+
+{
+  const hasConsole = typeof console !== 'undefined';
+  const classifyRE = /(?:^|[-_])(\w)/g;
+  const classify = str => str
+    .replace(classifyRE, c => c.toUpperCase())
+    .replace(/[-_]/g, '');
+
+  warn = (msg, vm) => {
+    const trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(`[Vue warn]: ${msg}${trace}`);
+    }
+  };
+
+  tip = (msg, vm) => {
+    if (hasConsole && (!config.silent)) {
+      console.warn(`[Vue tip]: ${msg}` + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = (vm, includeFile) => {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    const options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    let name = options.name || options._componentTag;
+    const file = options.__file;
+    if (!name && file) {
+      const match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? `<${classify(name)}>` : `<Anonymous>`) +
+      (file && includeFile !== false ? ` at ${file}` : '')
+    )
+  };
+
+  const repeat = (str, n) => {
+    let res = '';
+    while (n) {
+      if (n % 2 === 1) res += str;
+      if (n > 1) str += str;
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = vm => {
+    if (vm._isVue && vm.$parent) {
+      const tree = [];
+      let currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          const last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map((vm, i) => `${
+          i === 0 ? '---> ' : repeat(' ', 5 + i * 2)
+        }${
+          Array.isArray(vm)
+            ? `${formatComponentName(vm[0])}... (${vm[1]} recursive calls)`
+            : formatComponentName(vm)
+        }`)
+        .join('\n')
+    } else {
+      return `\n\n(found in ${formatComponentName(vm)})`
+    }
+  };
+}
+
+/*  */
+
+
+let uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+class Dep {
+  
+  
+  
+
+  constructor () {
+    this.id = uid++;
+    this.subs = [];
+  }
+
+  addSub (sub) {
+    this.subs.push(sub);
+  }
+
+  removeSub (sub) {
+    remove(this.subs, sub);
+  }
+
+  depend () {
+    if (Dep.target) {
+      Dep.target.addDep(this);
+    }
+  }
+
+  notify () {
+    // stabilize the subscriber list first
+    const subs = this.subs.slice();
+    for (let i = 0, l = subs.length; i < l; i++) {
+      subs[i].update();
+    }
+  }
+}
+
+// the current target watcher being evaluated.
+// this is globally unique because there could be only one
+// watcher being evaluated at any time.
+Dep.target = null;
+const targetStack = [];
+
+function pushTarget (_target) {
+  if (Dep.target) targetStack.push(Dep.target);
+  Dep.target = _target;
+}
+
+function popTarget () {
+  Dep.target = targetStack.pop();
+}
+
+/*  */
+
+class VNode {
+  
+  
+  
+  
+  
+  
+   // rendered in this component's scope
+  
+  
+   // component instance
+   // component placeholder node
+
+  // strictly internal
+   // contains raw HTML? (server only)
+   // hoisted static node
+   // necessary for enter transition check
+   // empty comment placeholder?
+   // is a cloned node?
+   // is a v-once node?
+   // async component factory function
+  
+  
+  
+   // real context vm for functional nodes
+   // for SSR caching
+   // functioanl scope id support
+
+  constructor (
+    tag,
+    data,
+    children,
+    text,
+    elm,
+    context,
+    componentOptions,
+    asyncFactory
+  ) {
+    this.tag = tag;
+    this.data = data;
+    this.children = children;
+    this.text = text;
+    this.elm = elm;
+    this.ns = undefined;
+    this.context = context;
+    this.functionalContext = undefined;
+    this.functionalOptions = undefined;
+    this.functionalScopeId = undefined;
+    this.key = data && data.key;
+    this.componentOptions = componentOptions;
+    this.componentInstance = undefined;
+    this.parent = undefined;
+    this.raw = false;
+    this.isStatic = false;
+    this.isRootInsert = true;
+    this.isComment = false;
+    this.isCloned = false;
+    this.isOnce = false;
+    this.asyncFactory = asyncFactory;
+    this.asyncMeta = undefined;
+    this.isAsyncPlaceholder = false;
+  }
+
+  // DEPRECATED: alias for componentInstance for backwards compat.
+  /* istanbul ignore next */
+  get child () {
+    return this.componentInstance
+  }
+}
+
+const createEmptyVNode = (text = '') => {
+  const node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode, deep) {
+  const componentOptions = vnode.componentOptions;
+  const cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.isCloned = true;
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
+  }
+  return cloned
+}
+
+function cloneVNodes (vnodes, deep) {
+  const len = vnodes.length;
+  const res = new Array(len);
+  for (let i = 0; i < len; i++) {
+    res[i] = cloneVNode(vnodes[i], deep);
+  }
+  return res
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+const arrayProto = Array.prototype;
+const arrayMethods = Object.create(arrayProto);[
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+]
+.forEach(function (method) {
+  // cache original method
+  const original = arrayProto[method];
+  def(arrayMethods, method, function mutator (...args) {
+    const result = original.apply(this, args);
+    const ob = this.__ob__;
+    let inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) ob.observeArray(inserted);
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+const arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * By default, when a reactive property is set, the new value is
+ * also converted to become reactive. However when passing down props,
+ * we don't want to force conversion because the value may be a nested value
+ * under a frozen data structure. Converting it would defeat the optimization.
+ */
+const observerState = {
+  shouldConvert: true
+};
+
+/**
+ * Observer class that are attached to each observed
+ * object. Once attached, the observer converts target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatches updates.
+ */
+class Observer {
+  
+  
+   // number of vms that has this object as root $data
+
+  constructor (value) {
+    this.value = value;
+    this.dep = new Dep();
+    this.vmCount = 0;
+    def(value, '__ob__', this);
+    if (Array.isArray(value)) {
+      const augment = hasProto
+        ? protoAugment
+        : copyAugment;
+      augment(value, arrayMethods, arrayKeys);
+      this.observeArray(value);
+    } else {
+      this.walk(value);
+    }
+  }
+
+  /**
+   * Walk through each property and convert them into
+   * getter/setters. This method should only be called when
+   * value type is Object.
+   */
+  walk (obj) {
+    const keys = Object.keys(obj);
+    for (let i = 0; i < keys.length; i++) {
+      defineReactive(obj, keys[i], obj[keys[i]]);
+    }
+  }
+
+  /**
+   * Observe a list of Array items.
+   */
+  observeArray (items) {
+    for (let i = 0, l = items.length; i < l; i++) {
+      observe(items[i]);
+    }
+  }
+}
+
+// helpers
+
+/**
+ * Augment an target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src, keys) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment an target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (let i = 0, l = keys.length; i < l; i++) {
+    const key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  let ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    observerState.shouldConvert &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  const dep = new Dep();
+
+  const property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  const getter = property && property.get;
+  const setter = property && property.set;
+
+  let childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      const value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      const value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if ("development" !== 'production' && customSetter) {
+        customSetter();
+      }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (key in target && !(key in Object.prototype)) {
+    target[key] = val;
+    return val
+  }
+  const ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    "development" !== 'production' && warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.splice(key, 1);
+    return
+  }
+  const ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    "development" !== 'production' && warn(
+      'Avoid deleting properties on a Vue instance or its root $data ' +
+      '- just set it to null.'
+    );
+    return
+  }
+  if (!hasOwn(target, key)) {
+    return
+  }
+  delete target[key];
+  if (!ob) {
+    return
+  }
+  ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (let e, i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+const strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        `option "${key}" can only be used during instance ` +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) return to
+  let key, toVal, fromVal;
+  const keys = Object.keys(from);
+  for (let i = 0; i < keys.length; i++) {
+    key = keys[i];
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+      )
+    }
+  } else {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      const instanceData = typeof childVal === 'function'
+        ? childVal.call(vm)
+        : childVal;
+      const defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      "development" !== 'production' && warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn(parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  return childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(hook => {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  const res = Object.create(parentVal || null);
+  if (childVal) {
+    "development" !== 'production' && assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) parentVal = undefined;
+  if (childVal === nativeWatch) childVal = undefined;
+  /* istanbul ignore if */
+  if (!childVal) return Object.create(parentVal || null)
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) return childVal
+  const ret = {};
+  extend(ret, parentVal);
+  for (const key in childVal) {
+    let parent = ret[key];
+    const child = childVal[key];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) return childVal
+  const ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) extend(ret, childVal);
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+const defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+  for (const key in options.components) {
+    const lower = key.toLowerCase();
+    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+      warn(
+        'Do not use built-in or reserved HTML elements as component ' +
+        'id: ' + key
+      );
+    }
+  }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+  const props = options.props;
+  if (!props) return
+  const res = {};
+  let i, val, name;
+  if (Array.isArray(props)) {
+    i = props.length;
+    while (i--) {
+      val = props[i];
+      if (typeof val === 'string') {
+        name = camelize(val);
+        res[name] = { type: null };
+      } else {
+        warn('props must be strings when using array syntax.');
+      }
+    }
+  } else if (isPlainObject(props)) {
+    for (const key in props) {
+      val = props[key];
+      name = camelize(key);
+      res[name] = isPlainObject(val)
+        ? val
+        : { type: val };
+    }
+  } else {
+    warn(
+      `Invalid value for option "props": expected an Array or an Object, ` +
+      `but got ${toRawType(props)}.`,
+      vm
+    );
+  }
+  options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+  const inject = options.inject;
+  const normalized = options.inject = {};
+  if (Array.isArray(inject)) {
+    for (let i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (const key in inject) {
+      const val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else if ("development" !== 'production' && inject) {
+    warn(
+      `Invalid value for option "inject": expected an Array or an Object, ` +
+      `but got ${toRawType(inject)}.`,
+      vm
+    );
+  }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+  const dirs = options.directives;
+  if (dirs) {
+    for (const key in dirs) {
+      const def = dirs[key];
+      if (typeof def === 'function') {
+        dirs[key] = { bind: def, update: def };
+      }
+    }
+  }
+}
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      `Invalid value for option "${name}": expected an Object, ` +
+      `but got ${toRawType(value)}.`,
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+  parent,
+  child,
+  vm
+) {
+  {
+    checkComponents(child);
+  }
+
+  if (typeof child === 'function') {
+    child = child.options;
+  }
+
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
+  normalizeDirectives(child);
+  const extendsFrom = child.extends;
+  if (extendsFrom) {
+    parent = mergeOptions(parent, extendsFrom, vm);
+  }
+  if (child.mixins) {
+    for (let i = 0, l = child.mixins.length; i < l; i++) {
+      parent = mergeOptions(parent, child.mixins[i], vm);
+    }
+  }
+  const options = {};
+  let key;
+  for (key in parent) {
+    mergeField(key);
+  }
+  for (key in child) {
+    if (!hasOwn(parent, key)) {
+      mergeField(key);
+    }
+  }
+  function mergeField (key) {
+    const strat = strats[key] || defaultStrat;
+    options[key] = strat(parent[key], child[key], vm, key);
+  }
+  return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+  options,
+  type,
+  id,
+  warnMissing
+) {
+  /* istanbul ignore if */
+  if (typeof id !== 'string') {
+    return
+  }
+  const assets = options[type];
+  // check local registration variations first
+  if (hasOwn(assets, id)) return assets[id]
+  const camelizedId = camelize(id);
+  if (hasOwn(assets, camelizedId)) return assets[camelizedId]
+  const PascalCaseId = capitalize(camelizedId);
+  if (hasOwn(assets, PascalCaseId)) return assets[PascalCaseId]
+  // fallback to prototype chain
+  const res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+  if ("development" !== 'production' && warnMissing && !res) {
+    warn(
+      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+      options
+    );
+  }
+  return res
+}
+
+/*  */
+
+function validateProp (
+  key,
+  propOptions,
+  propsData,
+  vm
+) {
+  const prop = propOptions[key];
+  const absent = !hasOwn(propsData, key);
+  let value = propsData[key];
+  // handle boolean props
+  if (isType(Boolean, prop.type)) {
+    if (absent && !hasOwn(prop, 'default')) {
+      value = false;
+    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
+      value = true;
+    }
+  }
+  // check default value
+  if (value === undefined) {
+    value = getPropDefaultValue(vm, prop, key);
+    // since the default value is a fresh copy,
+    // make sure to observe it.
+    const prevShouldConvert = observerState.shouldConvert;
+    observerState.shouldConvert = true;
+    observe(value);
+    observerState.shouldConvert = prevShouldConvert;
+  }
+  {
+    assertProp(prop, key, value, vm, absent);
+  }
+  return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+  // no default, return undefined
+  if (!hasOwn(prop, 'default')) {
+    return undefined
+  }
+  const def = prop.default;
+  // warn against non-factory defaults for Object & Array
+  if ("development" !== 'production' && isObject(def)) {
+    warn(
+      'Invalid default value for prop "' + key + '": ' +
+      'Props with type Object/Array must use a factory function ' +
+      'to return the default value.',
+      vm
+    );
+  }
+  // the raw prop value was also undefined from previous render,
+  // return previous default value to avoid unnecessary watcher trigger
+  if (vm && vm.$options.propsData &&
+    vm.$options.propsData[key] === undefined &&
+    vm._props[key] !== undefined
+  ) {
+    return vm._props[key]
+  }
+  // call factory function for non-Function types
+  // a value is Function if its prototype is function even across different execution context
+  return typeof def === 'function' && getType(prop.type) !== 'Function'
+    ? def.call(vm)
+    : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+  prop,
+  name,
+  value,
+  vm,
+  absent
+) {
+  if (prop.required && absent) {
+    warn(
+      'Missing required prop: "' + name + '"',
+      vm
+    );
+    return
+  }
+  if (value == null && !prop.required) {
+    return
+  }
+  let type = prop.type;
+  let valid = !type || type === true;
+  const expectedTypes = [];
+  if (type) {
+    if (!Array.isArray(type)) {
+      type = [type];
+    }
+    for (let i = 0; i < type.length && !valid; i++) {
+      const assertedType = assertType(value, type[i]);
+      expectedTypes.push(assertedType.expectedType || '');
+      valid = assertedType.valid;
+    }
+  }
+  if (!valid) {
+    warn(
+      `Invalid prop: type check failed for prop "${name}".` +
+      ` Expected ${expectedTypes.map(capitalize).join(', ')}` +
+      `, got ${toRawType(value)}.`,
+      vm
+    );
+    return
+  }
+  const validator = prop.validator;
+  if (validator) {
+    if (!validator(value)) {
+      warn(
+        'Invalid prop: custom validator check failed for prop "' + name + '".',
+        vm
+      );
+    }
+  }
+}
+
+const simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+  let valid;
+  const expectedType = getType(type);
+  if (simpleCheckRE.test(expectedType)) {
+    const t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
+  } else if (expectedType === 'Object') {
+    valid = isPlainObject(value);
+  } else if (expectedType === 'Array') {
+    valid = Array.isArray(value);
+  } else {
+    valid = value instanceof type;
+  }
+  return {
+    valid,
+    expectedType
+  }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+  const match = fn && fn.toString().match(/^\s*function (\w+)/);
+  return match ? match[1] : ''
+}
+
+function isType (type, fn) {
+  if (!Array.isArray(fn)) {
+    return getType(fn) === getType(type)
+  }
+  for (let i = 0, len = fn.length; i < len; i++) {
+    if (getType(fn[i]) === getType(type)) {
+      return true
+    }
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    let cur = vm;
+    while ((cur = cur.$parent)) {
+      const hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (let i = 0; i < hooks.length; i++) {
+          try {
+            const capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) return
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(`Error in ${info}: "${err.toString()}"`, vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+const callbacks = [];
+let pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  const copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (let i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+let microTimerFunc;
+let macroTimerFunc;
+let useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = () => {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  const channel = new MessageChannel();
+  const port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = () => {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = () => {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  const p = Promise.resolve();
+  microTimerFunc = () => {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) setTimeout(noop);
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    const res = fn.apply(null, arguments);
+    useMacroTask = false;
+    return res
+  })
+}
+
+function nextTick (cb, ctx) {
+  let _resolve;
+  callbacks.push(() => {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(resolve => {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
+let mark;
+let measure;
+
+{
+  const perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    mark = tag => perf.mark(tag);
+    measure = (name, startTag, endTag) => {
+      perf.measure(name, startTag, endTag);
+      perf.clearMarks(startTag);
+      perf.clearMarks(endTag);
+      perf.clearMeasures(name);
+    };
+  }
+}
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+let initProxy;
+
+{
+  const allowedGlobals = makeMap(
+    'Infinity,undefined,NaN,isFinite,isNaN,' +
+    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+    'require' // for Webpack/Browserify
+  );
+
+  const warnNonPresent = (target, key) => {
+    warn(
+      `Property or method "${key}" is not defined on the instance but ` +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+      target
+    );
+  };
+
+  const hasProxy =
+    typeof Proxy !== 'undefined' &&
+    Proxy.toString().match(/native code/);
+
+  if (hasProxy) {
+    const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+    config.keyCodes = new Proxy(config.keyCodes, {
+      set (target, key, value) {
+        if (isBuiltInModifier(key)) {
+          warn(`Avoid overwriting built-in modifier in config.keyCodes: .${key}`);
+          return false
+        } else {
+          target[key] = value;
+          return true
+        }
+      }
+    });
+  }
+
+  const hasHandler = {
+    has (target, key) {
+      const has = key in target;
+      const isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      if (!has && !isAllowed) {
+        warnNonPresent(target, key);
+      }
+      return has || !isAllowed
+    }
+  };
+
+  const getHandler = {
+    get (target, key) {
+      if (typeof key === 'string' && !(key in target)) {
+        warnNonPresent(target, key);
+      }
+      return target[key]
+    }
+  };
+
+  initProxy = function initProxy (vm) {
+    if (hasProxy) {
+      // determine which proxy handler to use
+      const options = vm.$options;
+      const handlers = options.render && options.render._withStripped
+        ? getHandler
+        : hasHandler;
+      vm._renderProxy = new Proxy(vm, handlers);
+    } else {
+      vm._renderProxy = vm;
+    }
+  };
+}
+
+/*  */
+
+const seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  let i, keys;
+  const isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+    return
+  }
+  if (val.__ob__) {
+    const depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) _traverse(val[i], seen);
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) _traverse(val[keys[i]], seen);
+  }
+}
+
+/*  */
+
+const normalizeEvent = cached((name) => {
+  const passive = name.charAt(0) === '&';
+  name = passive ? name.slice(1) : name;
+  const once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+  name = once$$1 ? name.slice(1) : name;
+  const capture = name.charAt(0) === '!';
+  name = capture ? name.slice(1) : name;
+  return {
+    name,
+    once: once$$1,
+    capture,
+    passive
+  }
+});
+
+function createFnInvoker (fns) {
+  function invoker () {
+    const fns = invoker.fns;
+    if (Array.isArray(fns)) {
+      const cloned = fns.slice();
+      for (let i = 0; i < cloned.length; i++) {
+        cloned[i].apply(null, arguments);
+      }
+    } else {
+      // return handler return value for single handlers
+      return fns.apply(null, arguments)
+    }
+  }
+  invoker.fns = fns;
+  return invoker
+}
+
+function updateListeners (
+  on,
+  oldOn,
+  add,
+  remove$$1,
+  vm
+) {
+  let name, cur, old, event;
+  for (name in on) {
+    cur = on[name];
+    old = oldOn[name];
+    event = normalizeEvent(name);
+    if (isUndef(cur)) {
+      "development" !== 'production' && warn(
+        `Invalid handler for event "${event.name}": got ` + String(cur),
+        vm
+      );
+    } else if (isUndef(old)) {
+      if (isUndef(cur.fns)) {
+        cur = on[name] = createFnInvoker(cur);
+      }
+      add(event.name, cur, event.once, event.capture, event.passive);
+    } else if (cur !== old) {
+      old.fns = cur;
+      on[name] = old;
+    }
+  }
+  for (name in oldOn) {
+    if (isUndef(on[name])) {
+      event = normalizeEvent(name);
+      remove$$1(event.name, oldOn[name], event.capture);
+    }
+  }
+}
+
+/*  */
+
+function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
+  let invoker;
+  const oldHook = def[hookKey];
+
+  function wrappedHook () {
+    hook.apply(this, arguments);
+    // important: remove merged hook to ensure it's called only once
+    // and prevent memory leak
+    remove(invoker.fns, wrappedHook);
+  }
+
+  if (isUndef(oldHook)) {
+    // no existing hook
+    invoker = createFnInvoker([wrappedHook]);
+  } else {
+    /* istanbul ignore if */
+    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+      // already a merged invoker
+      invoker = oldHook;
+      invoker.fns.push(wrappedHook);
+    } else {
+      // existing plain hook
+      invoker = createFnInvoker([oldHook, wrappedHook]);
+    }
+  }
+
+  invoker.merged = true;
+  def[hookKey] = invoker;
+}
+
+/*  */
+
+function extractPropsFromVNodeData (
+  data,
+  Ctor,
+  tag
+) {
+  // we are only extracting raw values here.
+  // validation and default values are handled in the child
+  // component itself.
+  const propOptions = Ctor.options.props;
+  if (isUndef(propOptions)) {
+    return
+  }
+  const res = {};
+  const { attrs, props } = data;
+  if (isDef(attrs) || isDef(props)) {
+    for (const key in propOptions) {
+      const altKey = hyphenate(key);
+      {
+        const keyInLowerCase = key.toLowerCase();
+        if (
+          key !== keyInLowerCase &&
+          attrs && hasOwn(attrs, keyInLowerCase)
+        ) {
+          tip(
+            `Prop "${keyInLowerCase}" is passed to component ` +
+            `${formatComponentName(tag || Ctor)}, but the declared prop name is` +
+            ` "${key}". ` +
+            `Note that HTML attributes are case-insensitive and camelCased ` +
+            `props need to use their kebab-case equivalents when using in-DOM ` +
+            `templates. You should probably use "${altKey}" instead of "${key}".`
+          );
+        }
+      }
+      checkProp(res, props, key, altKey, true) ||
+      checkProp(res, attrs, key, altKey, false);
+    }
+  }
+  return res
+}
+
+function checkProp (
+  res,
+  hash,
+  key,
+  altKey,
+  preserve
+) {
+  if (isDef(hash)) {
+    if (hasOwn(hash, key)) {
+      res[key] = hash[key];
+      if (!preserve) {
+        delete hash[key];
+      }
+      return true
+    } else if (hasOwn(hash, altKey)) {
+      res[key] = hash[altKey];
+      if (!preserve) {
+        delete hash[altKey];
+      }
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array<VNode>. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+  for (let i = 0; i < children.length; i++) {
+    if (Array.isArray(children[i])) {
+      return Array.prototype.concat.apply([], children)
+    }
+  }
+  return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. <template>, <slot>, v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+  return isPrimitive(children)
+    ? [createTextVNode(children)]
+    : Array.isArray(children)
+      ? normalizeArrayChildren(children)
+      : undefined
+}
+
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+  const res = [];
+  let i, c, lastIndex, last;
+  for (i = 0; i < children.length; i++) {
+    c = children[i];
+    if (isUndef(c) || typeof c === 'boolean') continue
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
+    //  nested
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`);
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
+    } else if (isPrimitive(c)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
+        res[lastIndex] = createTextVNode(last.text + c);
+      } else if (c !== '') {
+        // convert primitive to vnode
+        res.push(createTextVNode(c));
+      }
+    } else {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
+        res[lastIndex] = createTextVNode(last.text + c.text);
+      } else {
+        // default key for nested array children (likely generated by v-for)
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = `__vlist${nestedIndex}_${i}__`;
+        }
+        res.push(c);
+      }
+    }
+  }
+  return res
+}
+
+/*  */
+
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
+
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  const node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data, context, children, tag };
+  return node
+}
+
+function resolveAsyncComponent (
+  factory,
+  baseCtor,
+  context
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  if (isDef(factory.contexts)) {
+    // already pending
+    factory.contexts.push(context);
+  } else {
+    const contexts = factory.contexts = [context];
+    let sync = true;
+
+    const forceRender = () => {
+      for (let i = 0, l = contexts.length; i < l; i++) {
+        contexts[i].$forceUpdate();
+      }
+    };
+
+    const resolve = once((res) => {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender();
+      }
+    });
+
+    const reject = once(reason => {
+      "development" !== 'production' && warn(
+        `Failed to resolve async component: ${String(factory)}` +
+        (reason ? `\nReason: ${reason}` : '')
+      );
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender();
+      }
+    });
+
+    const res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (typeof res.then === 'function') {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(() => {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender();
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(() => {
+            if (isUndef(factory.resolved)) {
+              reject(
+                `timeout (${res.timeout}ms)`
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
+  }
+}
+
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (let i = 0; i < children.length; i++) {
+      const c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
+      }
+    }
+  }
+}
+
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  const listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
+  }
+}
+
+let target;
+
+function add (event, fn, once) {
+  if (once) {
+    target.$once(event, fn);
+  } else {
+    target.$on(event, fn);
+  }
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
+}
+
+function eventsMixin (Vue) {
+  const hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    const vm = this;
+    if (Array.isArray(event)) {
+      for (let i = 0, l = event.length; i < l; i++) {
+        this.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$once = function (event, fn) {
+    const vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    const vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (let i = 0, l = event.length; i < l; i++) {
+        this.$off(event[i], fn);
+      }
+      return vm
+    }
+    // specific event
+    const cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    if (fn) {
+      // specific handler
+      let cb;
+      let i = cbs.length;
+      while (i--) {
+        cb = cbs[i];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i, 1);
+          break
+        }
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    const vm = this;
+    {
+      const lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          `Event "${lowerCaseEvent}" is emitted in component ` +
+          `${formatComponentName(vm)} but the handler is registered for "${event}". ` +
+          `Note that HTML attributes are case-insensitive and you cannot use ` +
+          `v-on to listen to camelCase events when using in-DOM templates. ` +
+          `You should probably use "${hyphenate(event)}" instead of "${event}".`
+        );
+      }
+    }
+    let cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      const args = toArray(arguments, 1);
+      for (let i = 0, l = cbs.length; i < l; i++) {
+        try {
+          cbs[i].apply(vm, args);
+        } catch (e) {
+          handleError(e, vm, `event handler for "${event}"`);
+        }
+      }
+    }
+    return vm
+  };
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  const slots = {};
+  if (!children) {
+    return slots
+  }
+  for (let i = 0, l = children.length; i < l; i++) {
+    const child = children[i];
+    const data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.functionalContext === context) &&
+      data && data.slot != null
+    ) {
+      const name = child.data.slot;
+      const slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (const name in slots) {
+    if (slots[name].every(isWhitespace)) {
+      delete slots[name];
+    }
+  }
+  return slots
+}
+
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  res
+) {
+  res = res || {};
+  for (let i = 0; i < fns.length; i++) {
+    if (Array.isArray(fns[i])) {
+      resolveScopedSlots(fns[i], res);
+    } else {
+      res[fns[i].key] = fns[i].fn;
+    }
+  }
+  return res
+}
+
+/*  */
+
+let activeInstance = null;
+let isUpdatingChildComponent = false;
+
+function initLifecycle (vm) {
+  const options = vm.$options;
+
+  // locate first non-abstract parent
+  let parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
+    }
+    parent.$children.push(vm);
+  }
+
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
+
+  vm.$children = [];
+  vm.$refs = {};
+
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    const vm = this;
+    if (vm._isMounted) {
+      callHook(vm, 'beforeUpdate');
+    }
+    const prevEl = vm.$el;
+    const prevVnode = vm._vnode;
+    const prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(
+        vm.$el, vnode, hydrating, false /* removeOnly */,
+        vm.$options._parentElm,
+        vm.$options._refElm
+      );
+      // no need for the ref nodes after initial patch
+      // this prevents keeping a detached DOM tree in memory (#5851)
+      vm.$options._parentElm = vm.$options._refElm = null;
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    activeInstance = prevActiveInstance;
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
+
+  Vue.prototype.$forceUpdate = function () {
+    const vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
+
+  Vue.prototype.$destroy = function () {
+    const vm = this;
+    if (vm._isBeingDestroyed) {
+      return
+    }
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    const parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    let i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
+}
+
+function mountComponent (
+  vm,
+  el,
+  hydrating
+) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
+        warn(
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
+        );
+      }
+    }
+  }
+  callHook(vm, 'beforeMount');
+
+  let updateComponent;
+  /* istanbul ignore if */
+  if ("development" !== 'production' && config.performance && mark) {
+    updateComponent = () => {
+      const name = vm._name;
+      const id = vm._uid;
+      const startTag = `vue-perf-start:${id}`;
+      const endTag = `vue-perf-end:${id}`;
+
+      mark(startTag);
+      const vnode = vm._render();
+      mark(endTag);
+      measure(`vue ${name} render`, startTag, endTag);
+
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(`vue ${name} patch`, startTag, endTag);
+    };
+  } else {
+    updateComponent = () => {
+      vm._update(vm._render(), hydrating);
+    };
+  }
+
+  vm._watcher = new Watcher(vm, updateComponent, noop);
+  hydrating = false;
+
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  }
+  return vm
+}
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+  {
+    isUpdatingChildComponent = true;
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren
+  const hasChildren = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    parentVnode.data.scopedSlots || // has new scoped slots
+    vm.$scopedSlots !== emptyObject // has old scoped slots
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    observerState.shouldConvert = false;
+    const props = vm._props;
+    const propKeys = vm.$options._propKeys || [];
+    for (let i = 0; i < propKeys.length; i++) {
+      const key = propKeys[i];
+      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+    }
+    observerState.shouldConvert = true;
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  if (listeners) {
+    const oldListeners = vm.$options._parentListeners;
+    vm.$options._parentListeners = listeners;
+    updateComponentListeners(vm, listeners, oldListeners);
+  }
+  // resolve slots + force update if has children
+  if (hasChildren) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
+}
+
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) return true
+  }
+  return false
+}
+
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (let i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
+  }
+}
+
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (let i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
+
+function callHook (vm, hook) {
+  const handlers = vm.$options[hook];
+  if (handlers) {
+    for (let i = 0, j = handlers.length; i < j; i++) {
+      try {
+        handlers[i].call(vm);
+      } catch (e) {
+        handleError(e, vm, `${hook} hook`);
+      }
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+}
+
+/*  */
+
+
+const MAX_UPDATE_COUNT = 100;
+
+const queue = [];
+const activatedChildren = [];
+let has = {};
+let circular = {};
+let waiting = false;
+let flushing = false;
+let index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  flushing = true;
+  let watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort((a, b) => a.id - b.id);
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if ("development" !== 'production' && has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? `in watcher with expression "${watcher.expression}"`
+              : `in a component render function.`
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  const activatedQueue = activatedChildren.slice();
+  const updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  let i = queue.length;
+  while (i--) {
+    const watcher = queue[i];
+    const vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (let i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  const id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      let i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
+
+/*  */
+
+let uid$2 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+class Watcher {
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+
+  constructor (
+    vm,
+    expOrFn,
+    cb,
+    options
+  ) {
+    this.vm = vm;
+    vm._watchers.push(this);
+    // options
+    if (options) {
+      this.deep = !!options.deep;
+      this.user = !!options.user;
+      this.lazy = !!options.lazy;
+      this.sync = !!options.sync;
+    } else {
+      this.deep = this.user = this.lazy = this.sync = false;
+    }
+    this.cb = cb;
+    this.id = ++uid$2; // uid for batching
+    this.active = true;
+    this.dirty = this.lazy; // for lazy watchers
+    this.deps = [];
+    this.newDeps = [];
+    this.depIds = new _Set();
+    this.newDepIds = new _Set();
+    this.expression = expOrFn.toString();
+    // parse expression for getter
+    if (typeof expOrFn === 'function') {
+      this.getter = expOrFn;
+    } else {
+      this.getter = parsePath(expOrFn);
+      if (!this.getter) {
+        this.getter = function () {};
+        "development" !== 'production' && warn(
+          `Failed watching path: "${expOrFn}" ` +
+          'Watcher only accepts simple dot-delimited paths. ' +
+          'For full control, use a function instead.',
+          vm
+        );
+      }
+    }
+    this.value = this.lazy
+      ? undefined
+      : this.get();
+  }
+
+  /**
+   * Evaluate the getter, and re-collect dependencies.
+   */
+  get () {
+    pushTarget(this);
+    let value;
+    const vm = this.vm;
+    try {
+      value = this.getter.call(vm, vm);
+    } catch (e) {
+      if (this.user) {
+        handleError(e, vm, `getter for watcher "${this.expression}"`);
+      } else {
+        throw e
+      }
+    } finally {
+      // "touch" every property so they are all tracked as
+      // dependencies for deep watching
+      if (this.deep) {
+        traverse(value);
+      }
+      popTarget();
+      this.cleanupDeps();
+    }
+    return value
+  }
+
+  /**
+   * Add a dependency to this directive.
+   */
+  addDep (dep) {
+    const id = dep.id;
+    if (!this.newDepIds.has(id)) {
+      this.newDepIds.add(id);
+      this.newDeps.push(dep);
+      if (!this.depIds.has(id)) {
+        dep.addSub(this);
+      }
+    }
+  }
+
+  /**
+   * Clean up for dependency collection.
+   */
+  cleanupDeps () {
+    let i = this.deps.length;
+    while (i--) {
+      const dep = this.deps[i];
+      if (!this.newDepIds.has(dep.id)) {
+        dep.removeSub(this);
+      }
+    }
+    let tmp = this.depIds;
+    this.depIds = this.newDepIds;
+    this.newDepIds = tmp;
+    this.newDepIds.clear();
+    tmp = this.deps;
+    this.deps = this.newDeps;
+    this.newDeps = tmp;
+    this.newDeps.length = 0;
+  }
+
+  /**
+   * Subscriber interface.
+   * Will be called when a dependency changes.
+   */
+  update () {
+    /* istanbul ignore else */
+    if (this.lazy) {
+      this.dirty = true;
+    } else if (this.sync) {
+      this.run();
+    } else {
+      queueWatcher(this);
+    }
+  }
+
+  /**
+   * Scheduler job interface.
+   * Will be called by the scheduler.
+   */
+  run () {
+    if (this.active) {
+      const value = this.get();
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        const oldValue = this.value;
+        this.value = value;
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue);
+          } catch (e) {
+            handleError(e, this.vm, `callback for watcher "${this.expression}"`);
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue);
+        }
+      }
+    }
+  }
+
+  /**
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
+   */
+  evaluate () {
+    this.value = this.get();
+    this.dirty = false;
+  }
+
+  /**
+   * Depend on all deps collected by this watcher.
+   */
+  depend () {
+    let i = this.deps.length;
+    while (i--) {
+      this.deps[i].depend();
+    }
+  }
+
+  /**
+   * Remove self from all dependencies' subscriber list.
+   */
+  teardown () {
+    if (this.active) {
+      // remove self from vm's watcher list
+      // this is a somewhat expensive operation so we skip it
+      // if the vm is being destroyed.
+      if (!this.vm._isBeingDestroyed) {
+        remove(this.vm._watchers, this);
+      }
+      let i = this.deps.length;
+      while (i--) {
+        this.deps[i].removeSub(this);
+      }
+      this.active = false;
+    }
+  }
+}
+
+/*  */
+
+const sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  const opts = vm.$options;
+  if (opts.props) initProps(vm, opts.props);
+  if (opts.methods) initMethods(vm, opts.methods);
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) initComputed(vm, opts.computed);
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
+
+function initProps (vm, propsOptions) {
+  const propsData = vm.$options.propsData || {};
+  const props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  const keys = vm.$options._propKeys = [];
+  const isRoot = !vm.$parent;
+  // root instance props should be converted
+  observerState.shouldConvert = isRoot;
+  for (const key in propsOptions) {
+    keys.push(key);
+    const value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      const hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          `"${hyphenatedKey}" is a reserved attribute and cannot be used as component prop.`,
+          vm
+        );
+      }
+      defineReactive(props, key, value, () => {
+        if (vm.$parent && !isUpdatingChildComponent) {
+          warn(
+            `Avoid mutating a prop directly since the value will be ` +
+            `overwritten whenever the parent component re-renders. ` +
+            `Instead, use a data or computed property based on the prop's ` +
+            `value. Prop being mutated: "${key}"`,
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, `_props`, key);
+    }
+  }
+  observerState.shouldConvert = true;
+}
+
+function initData (vm) {
+  let data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    "development" !== 'production' && warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
+  }
+  // proxy data on instance
+  const keys = Object.keys(data);
+  const props = vm.$options.props;
+  const methods = vm.$options.methods;
+  let i = keys.length;
+  while (i--) {
+    const key = keys[i];
+    {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          `Method "${key}" has already been defined as a data property.`,
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      "development" !== 'production' && warn(
+        `The data property "${key}" is already declared as a prop. ` +
+        `Use prop default value instead.`,
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, `_data`, key);
+    }
+  }
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, `data()`);
+    return {}
+  }
+}
+
+const computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  const watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  const isSSR = isServerRendering();
+
+  for (const key in computed) {
+    const userDef = computed[key];
+    const getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if ("development" !== 'production' && getter == null) {
+      warn(
+        `Getter is missing for computed property "${key}".`,
+        vm
+      );
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(`The computed property "${key}" is already defined in data.`, vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(`The computed property "${key}" is already defined as a prop.`, vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  const shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : userDef;
+    sharedPropertyDefinition.set = noop;
+  } else {
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : userDef.get
+      : noop;
+    sharedPropertyDefinition.set = userDef.set
+      ? userDef.set
+      : noop;
+  }
+  if ("development" !== 'production' &&
+      sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        `Computed property "${key}" was assigned to but it has no setter.`,
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+  return function computedGetter () {
+    const watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
+    }
+  }
+}
+
+function initMethods (vm, methods) {
+  const props = vm.$options.props;
+  for (const key in methods) {
+    {
+      if (methods[key] == null) {
+        warn(
+          `Method "${key}" has an undefined value in the component definition. ` +
+          `Did you reference the function correctly?`,
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          `Method "${key}" has already been defined as a prop.`,
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          `Method "${key}" conflicts with an existing Vue instance method. ` +
+          `Avoid defining component methods that start with _ or $.`
+        );
+      }
+    }
+    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+  }
+}
+
+function initWatch (vm, watch) {
+  for (const key in watch) {
+    const handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (let i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
+
+function createWatcher (
+  vm,
+  keyOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
+  }
+  return vm.$watch(keyOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  const dataDef = {};
+  dataDef.get = function () { return this._data };
+  const propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function (newData) {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn(`$props is readonly.`, this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
+
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
+    const vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
+    options = options || {};
+    options.user = true;
+    const watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      cb.call(vm, watcher.value);
+    }
+    return function unwatchFn () {
+      watcher.teardown();
+    }
+  };
+}
+
+/*  */
+
+function initProvide (vm) {
+  const provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
+  }
+}
+
+function initInjections (vm) {
+  const result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    observerState.shouldConvert = false;
+    Object.keys(result).forEach(key => {
+      /* istanbul ignore else */
+      {
+        defineReactive(vm, key, result[key], () => {
+          warn(
+            `Avoid mutating an injected value directly since the changes will be ` +
+            `overwritten whenever the provided component re-renders. ` +
+            `injection being mutated: "${key}"`,
+            vm
+          );
+        });
+      }
+    });
+    observerState.shouldConvert = true;
+  }
+}
+
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    const result = Object.create(null);
+    const keys = hasSymbol
+        ? Reflect.ownKeys(inject).filter(key => {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
+        : Object.keys(inject);
+
+    for (let i = 0; i < keys.length; i++) {
+      const key = keys[i];
+      const provideKey = inject[key].from;
+      let source = vm;
+      while (source) {
+        if (source._provided && provideKey in source._provided) {
+          result[key] = source._provided[provideKey];
+          break
+        }
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          const provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(`Injection "${key}" not found`, vm);
+        }
+      }
+    }
+    return result
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  let ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  const scopedSlotFn = this.$scopedSlots[name];
+  let nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if ("development" !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    const slotNodes = this.$slots[name];
+    // warn duplicate slot usage
+    if (slotNodes) {
+      if ("development" !== 'production' && slotNodes._rendered) {
+        warn(
+          `Duplicate presence of slot "${name}" found in the same render tree ` +
+          `- this will likely cause render errors.`,
+          this
+        );
+      }
+      slotNodes._rendered = true;
+    }
+    nodes = slotNodes || fallback;
+  }
+
+  const target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInAlias,
+  eventKeyName
+) {
+  const keyCodes = config.keyCodes[key] || builtInAlias;
+  if (keyCodes) {
+    if (Array.isArray(keyCodes)) {
+      return keyCodes.indexOf(eventKeyCode) === -1
+    } else {
+      return keyCodes !== eventKeyCode
+    }
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      "development" !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      let hash;
+      for (const key in value) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          const type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        if (!(key in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            const on = data.on || (data.on = {});
+            on[`update:${key}`] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor,
+  isOnce
+) {
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  const isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
+  const renderFns = this.$options.staticRenderFns;
+  const cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
+  let tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree by doing a shallow clone.
+  if (tree && !isInFor) {
+    return Array.isArray(tree)
+      ? cloneVNodes(tree)
+      : cloneVNode(tree)
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  markStatic(tree, `__static__${index}`, false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (let i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], `${key}_${i}`, isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      "development" !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      const on = data.on = data.on ? extend({}, data.on) : {};
+      for (const key in value) {
+        const existing = on[key];
+        const ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  const options = Ctor.options;
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = () => resolveSlots(children, parent);
+
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  const contextVm = Object.create(parent);
+  const isCompiled = isTrue(options._compiled);
+  const needNormalization = !isCompiled;
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = (a, b, c, d) => {
+      const vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode) {
+        vnode.functionalScopeId = options._scopeId;
+        vnode.functionalContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  const options = Ctor.options;
+  const props = {};
+  const propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (const key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) mergeProps(props, data.attrs);
+    if (isDef(data.props)) mergeProps(props, data.props);
+  }
+
+  const renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  const vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    vnode.functionalContext = contextVm;
+    vnode.functionalOptions = options;
+    if (data.slot) {
+      (vnode.data || (vnode.data = {})).slot = data.slot;
+    }
+  }
+
+  return vnode
+}
+
+function mergeProps (to, from) {
+  for (const key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+// hooks to be invoked on component VNodes during patch
+const componentVNodeHooks = {
+  init (
+    vnode,
+    hydrating,
+    parentElm,
+    refElm
+  ) {
+    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+      const child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance,
+        parentElm,
+        refElm
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    } else if (vnode.data.keepAlive) {
+      // kept-alive components, treat as a patch
+      const mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    }
+  },
+
+  prepatch (oldVnode, vnode) {
+    const options = vnode.componentOptions;
+    const child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert (vnode) {
+    const { context, componentInstance } = vnode;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy (vnode) {
+    const { componentInstance } = vnode;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+const hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  const baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(`Invalid Component definition: ${String(Ctor)}`, context);
+    }
+    return
+  }
+
+  // async component
+  let asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
+
+  data = data || {};
+
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
+
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
+
+  // extract props
+  const propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  const listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    const slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
+    }
+  }
+
+  // merge component management hooks onto the placeholder node
+  mergeHooks(data);
+
+  // return a placeholder vnode
+  const name = Ctor.options.name || tag;
+  const vnode = new VNode(
+    `vue-component-${Ctor.cid}${name ? `-${name}` : ''}`,
+    data, undefined, undefined, undefined, context,
+    { Ctor, propsData, listeners, tag, children },
+    asyncFactory
+  );
+  return vnode
+}
+
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent, // activeInstance in lifecycle state
+  parentElm,
+  refElm
+) {
+  const vnodeComponentOptions = vnode.componentOptions;
+  const options = {
+    _isComponent: true,
+    parent,
+    propsData: vnodeComponentOptions.propsData,
+    _componentTag: vnodeComponentOptions.tag,
+    _parentVnode: vnode,
+    _parentListeners: vnodeComponentOptions.listeners,
+    _renderChildren: vnodeComponentOptions.children,
+    _parentElm: parentElm || null,
+    _refElm: refElm || null
+  };
+  // check inline-template render functions
+  const inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnodeComponentOptions.Ctor(options)
+}
+
+function mergeHooks (data) {
+  if (!data.hook) {
+    data.hook = {};
+  }
+  for (let i = 0; i < hooksToMerge.length; i++) {
+    const key = hooksToMerge[i];
+    const fromParent = data.hook[key];
+    const ours = componentVNodeHooks[key];
+    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
+  }
+}
+
+function mergeHook$1 (one, two) {
+  return function (a, b, c, d) {
+    one(a, b, c, d);
+    two(a, b, c, d);
+  }
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  const prop = (options.model && options.model.prop) || 'value';
+  const event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  const on = data.on || (data.on = {});
+  if (isDef(on[event])) {
+    on[event] = [data.model.callback].concat(on[event]);
+  } else {
+    on[event] = data.model.callback;
+  }
+}
+
+/*  */
+
+const SIMPLE_NORMALIZE = 1;
+const ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    "development" !== 'production' && warn(
+      `Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if ("development" !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    warn(
+      'Avoid using non-primitive value as key, ' +
+      'use string/number value instead.',
+      context
+    );
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  let vnode, ns;
+  if (typeof tag === 'string') {
+    let Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (isDef(vnode)) {
+    if (ns) applyNS(vnode, ns);
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
+
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (let i = 0, l = vnode.children.length; i < l; i++) {
+      const child = vnode.children[i];
+      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  const options = vm.$options;
+  const parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  const renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = (a, b, c, d) => createElement(vm, a, b, c, d, false);
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = (a, b, c, d) => createElement(vm, a, b, c, d, true);
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  const parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
+      !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm);
+    }, true);
+    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, () => {
+      !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm);
+    }, true);
+  }
+}
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    const vm = this;
+    const { render, _parentVnode } = vm.$options;
+
+    if (vm._isMounted) {
+      // if the parent didn't update, the slot nodes will be the ones from
+      // last render. They need to be cloned to ensure "freshness" for this render.
+      for (const key in vm.$slots) {
+        const slot = vm.$slots[key];
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
+          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
+        }
+      }
+    }
+
+    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    let vnode;
+    try {
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, `render`);
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      {
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, `renderError`);
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
+      }
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if ("development" !== 'production' && Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
+
+/*  */
+
+let uid$1 = 0;
+
+function initMixin (Vue) {
+  Vue.prototype._init = function (options) {
+    const vm = this;
+    // a uid
+    vm._uid = uid$1++;
+
+    let startTag, endTag;
+    /* istanbul ignore if */
+    if ("development" !== 'production' && config.performance && mark) {
+      startTag = `vue-perf-start:${vm._uid}`;
+      endTag = `vue-perf-end:${vm._uid}`;
+      mark(startTag);
+    }
+
+    // a flag to avoid this being observed
+    vm._isVue = true;
+    // merge options
+    if (options && options._isComponent) {
+      // optimize internal component instantiation
+      // since dynamic options merging is pretty slow, and none of the
+      // internal component options needs special treatment.
+      initInternalComponent(vm, options);
+    } else {
+      vm.$options = mergeOptions(
+        resolveConstructorOptions(vm.constructor),
+        options || {},
+        vm
+      );
+    }
+    /* istanbul ignore else */
+    {
+      initProxy(vm);
+    }
+    // expose real self
+    vm._self = vm;
+    initLifecycle(vm);
+    initEvents(vm);
+    initRender(vm);
+    callHook(vm, 'beforeCreate');
+    initInjections(vm); // resolve injections before data/props
+    initState(vm);
+    initProvide(vm); // resolve provide after data/props
+    callHook(vm, 'created');
+
+    /* istanbul ignore if */
+    if ("development" !== 'production' && config.performance && mark) {
+      vm._name = formatComponentName(vm, false);
+      mark(endTag);
+      measure(`vue ${vm._name} init`, startTag, endTag);
+    }
+
+    if (vm.$options.el) {
+      vm.$mount(vm.$options.el);
+    }
+  };
+}
+
+function initInternalComponent (vm, options) {
+  const opts = vm.$options = Object.create(vm.constructor.options);
+  // doing this because it's faster than dynamic enumeration.
+  opts.parent = options.parent;
+  opts.propsData = options.propsData;
+  opts._parentVnode = options._parentVnode;
+  opts._parentListeners = options._parentListeners;
+  opts._renderChildren = options._renderChildren;
+  opts._componentTag = options._componentTag;
+  opts._parentElm = options._parentElm;
+  opts._refElm = options._refElm;
+  if (options.render) {
+    opts.render = options.render;
+    opts.staticRenderFns = options.staticRenderFns;
+  }
+}
+
+function resolveConstructorOptions (Ctor) {
+  let options = Ctor.options;
+  if (Ctor.super) {
+    const superOptions = resolveConstructorOptions(Ctor.super);
+    const cachedSuperOptions = Ctor.superOptions;
+    if (superOptions !== cachedSuperOptions) {
+      // super option changed,
+      // need to resolve new options.
+      Ctor.superOptions = superOptions;
+      // check if there are any late-modified/attached options (#4976)
+      const modifiedOptions = resolveModifiedOptions(Ctor);
+      // update base extend options
+      if (modifiedOptions) {
+        extend(Ctor.extendOptions, modifiedOptions);
+      }
+      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+      if (options.name) {
+        options.components[options.name] = Ctor;
+      }
+    }
+  }
+  return options
+}
+
+function resolveModifiedOptions (Ctor) {
+  let modified;
+  const latest = Ctor.options;
+  const extended = Ctor.extendOptions;
+  const sealed = Ctor.sealedOptions;
+  for (const key in latest) {
+    if (latest[key] !== sealed[key]) {
+      if (!modified) modified = {};
+      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+    }
+  }
+  return modified
+}
+
+function dedupe (latest, extended, sealed) {
+  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+  // between merges
+  if (Array.isArray(latest)) {
+    const res = [];
+    sealed = Array.isArray(sealed) ? sealed : [sealed];
+    extended = Array.isArray(extended) ? extended : [extended];
+    for (let i = 0; i < latest.length; i++) {
+      // push original options and not sealed options to exclude duplicated options
+      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+        res.push(latest[i]);
+      }
+    }
+    return res
+  } else {
+    return latest
+  }
+}
+
+function Vue$3 (options) {
+  if ("development" !== 'production' &&
+    !(this instanceof Vue$3)
+  ) {
+    warn('Vue is a constructor and should be called with the `new` keyword');
+  }
+  this._init(options);
+}
+
+initMixin(Vue$3);
+stateMixin(Vue$3);
+eventsMixin(Vue$3);
+lifecycleMixin(Vue$3);
+renderMixin(Vue$3);
+
+/*  */
+
+function initUse (Vue) {
+  Vue.use = function (plugin) {
+    const installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
+    }
+
+    // additional parameters
+    const args = toArray(arguments, 1);
+    args.unshift(this);
+    if (typeof plugin.install === 'function') {
+      plugin.install.apply(plugin, args);
+    } else if (typeof plugin === 'function') {
+      plugin.apply(null, args);
+    }
+    installedPlugins.push(plugin);
+    return this
+  };
+}
+
+/*  */
+
+function initMixin$1 (Vue) {
+  Vue.mixin = function (mixin) {
+    this.options = mergeOptions(this.options, mixin);
+    return this
+  };
+}
+
+/*  */
+
+function initExtend (Vue) {
+  /**
+   * Each instance constructor, including Vue, has a unique
+   * cid. This enables us to create wrapped "child
+   * constructors" for prototypal inheritance and cache them.
+   */
+  Vue.cid = 0;
+  let cid = 1;
+
+  /**
+   * Class inheritance
+   */
+  Vue.extend = function (extendOptions) {
+    extendOptions = extendOptions || {};
+    const Super = this;
+    const SuperId = Super.cid;
+    const cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+    if (cachedCtors[SuperId]) {
+      return cachedCtors[SuperId]
+    }
+
+    const name = extendOptions.name || Super.options.name;
+    {
+      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+        warn(
+          'Invalid component name: "' + name + '". Component names ' +
+          'can only contain alphanumeric characters and the hyphen, ' +
+          'and must start with a letter.'
+        );
+      }
+    }
+
+    const Sub = function VueComponent (options) {
+      this._init(options);
+    };
+    Sub.prototype = Object.create(Super.prototype);
+    Sub.prototype.constructor = Sub;
+    Sub.cid = cid++;
+    Sub.options = mergeOptions(
+      Super.options,
+      extendOptions
+    );
+    Sub['super'] = Super;
+
+    // For props and computed properties, we define the proxy getters on
+    // the Vue instances at extension time, on the extended prototype. This
+    // avoids Object.defineProperty calls for each instance created.
+    if (Sub.options.props) {
+      initProps$1(Sub);
+    }
+    if (Sub.options.computed) {
+      initComputed$1(Sub);
+    }
+
+    // allow further extension/mixin/plugin usage
+    Sub.extend = Super.extend;
+    Sub.mixin = Super.mixin;
+    Sub.use = Super.use;
+
+    // create asset registers, so extended classes
+    // can have their private assets too.
+    ASSET_TYPES.forEach(function (type) {
+      Sub[type] = Super[type];
+    });
+    // enable recursive self-lookup
+    if (name) {
+      Sub.options.components[name] = Sub;
+    }
+
+    // keep a reference to the super options at extension time.
+    // later at instantiation we can check if Super's options have
+    // been updated.
+    Sub.superOptions = Super.options;
+    Sub.extendOptions = extendOptions;
+    Sub.sealedOptions = extend({}, Sub.options);
+
+    // cache constructor
+    cachedCtors[SuperId] = Sub;
+    return Sub
+  };
+}
+
+function initProps$1 (Comp) {
+  const props = Comp.options.props;
+  for (const key in props) {
+    proxy(Comp.prototype, `_props`, key);
+  }
+}
+
+function initComputed$1 (Comp) {
+  const computed = Comp.options.computed;
+  for (const key in computed) {
+    defineComputed(Comp.prototype, key, computed[key]);
+  }
+}
+
+/*  */
+
+function initAssetRegisters (Vue) {
+  /**
+   * Create asset registration methods.
+   */
+  ASSET_TYPES.forEach(type => {
+    Vue[type] = function (
+      id,
+      definition
+    ) {
+      if (!definition) {
+        return this.options[type + 's'][id]
+      } else {
+        /* istanbul ignore if */
+        {
+          if (type === 'component' && config.isReservedTag(id)) {
+            warn(
+              'Do not use built-in or reserved HTML elements as component ' +
+              'id: ' + id
+            );
+          }
+        }
+        if (type === 'component' && isPlainObject(definition)) {
+          definition.name = definition.name || id;
+          definition = this.options._base.extend(definition);
+        }
+        if (type === 'directive' && typeof definition === 'function') {
+          definition = { bind: definition, update: definition };
+        }
+        this.options[type + 's'][id] = definition;
+        return definition
+      }
+    };
+  });
+}
+
+/*  */
+
+function getComponentName (opts) {
+  return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
+    return pattern.split(',').indexOf(name) > -1
+  } else if (isRegExp(pattern)) {
+    return pattern.test(name)
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+  const { cache, keys, _vnode } = keepAliveInstance;
+  for (const key in cache) {
+    const cachedNode = cache[key];
+    if (cachedNode) {
+      const name = getComponentName(cachedNode.componentOptions);
+      if (name && !filter(name)) {
+        pruneCacheEntry(cache, key, keys, _vnode);
+      }
+    }
+  }
+}
+
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  const cached$$1 = cache[key];
+  if (cached$$1 && cached$$1 !== current) {
+    cached$$1.componentInstance.$destroy();
+  }
+  cache[key] = null;
+  remove(keys, key);
+}
+
+const patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+  name: 'keep-alive',
+  abstract: true,
+
+  props: {
+    include: patternTypes,
+    exclude: patternTypes,
+    max: [String, Number]
+  },
+
+  created () {
+    this.cache = Object.create(null);
+    this.keys = [];
+  },
+
+  destroyed () {
+    for (const key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
+    }
+  },
+
+  watch: {
+    include (val) {
+      pruneCache(this, name => matches(val, name));
+    },
+    exclude (val) {
+      pruneCache(this, name => !matches(val, name));
+    }
+  },
+
+  render () {
+    const slot = this.$slots.default;
+    const vnode = getFirstComponentChild(slot);
+    const componentOptions = vnode && vnode.componentOptions;
+    if (componentOptions) {
+      // check pattern
+      const name = getComponentName(componentOptions);
+      const { include, exclude } = this;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
+        return vnode
+      }
+
+      const { cache, keys } = this;
+      const key = vnode.key == null
+        // same constructor may get registered as different local components
+        // so cid alone is not enough (#3269)
+        ? componentOptions.Ctor.cid + (componentOptions.tag ? `::${componentOptions.tag}` : '')
+        : vnode.key;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
+      } else {
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
+      }
+
+      vnode.data.keepAlive = true;
+    }
+    return vnode || (slot && slot[0])
+  }
+};
+
+var builtInComponents = {
+  KeepAlive
+};
+
+/*  */
+
+function initGlobalAPI (Vue) {
+  // config
+  const configDef = {};
+  configDef.get = () => config;
+  {
+    configDef.set = () => {
+      warn(
+        'Do not replace the Vue.config object, set individual fields instead.'
+      );
+    };
+  }
+  Object.defineProperty(Vue, 'config', configDef);
+
+  // exposed util methods.
+  // NOTE: these are not considered part of the public API - avoid relying on
+  // them unless you are aware of the risk.
+  Vue.util = {
+    warn,
+    extend,
+    mergeOptions,
+    defineReactive
+  };
+
+  Vue.set = set;
+  Vue.delete = del;
+  Vue.nextTick = nextTick;
+
+  Vue.options = Object.create(null);
+  ASSET_TYPES.forEach(type => {
+    Vue.options[type + 's'] = Object.create(null);
+  });
+
+  // this is used to identify the "base" constructor to extend all plain-object
+  // components with in Weex's multi-instance scenarios.
+  Vue.options._base = Vue;
+
+  extend(Vue.options.components, builtInComponents);
+
+  initUse(Vue);
+  initMixin$1(Vue);
+  initExtend(Vue);
+  initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue$3);
+
+Object.defineProperty(Vue$3.prototype, '$isServer', {
+  get: isServerRendering
+});
+
+Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+  get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+Vue$3.version = '2.5.8';
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+const isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+const acceptValue = makeMap('input,textarea,option,select,progress');
+const mustUseProp = (tag, type, attr) => {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+const isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+const xlinkNS = 'http://www.w3.org/1999/xlink';
+
+const isXlink = (name) => {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+const getXlinkProp = (name) => {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+const isFalsyAttrValue = (val) => {
+  return val == null || val === false
+};
+
+/*  */
+
+function genClassForVnode (vnode) {
+  let data = vnode.data;
+  let parentNode = vnode;
+  let childNode = vnode;
+  while (isDef(childNode.componentInstance)) {
+    childNode = childNode.componentInstance._vnode;
+    if (childNode.data) {
+      data = mergeClassData(childNode.data, data);
+    }
+  }
+  while (isDef(parentNode = parentNode.parent)) {
+    if (parentNode.data) {
+      data = mergeClassData(data, parentNode.data);
+    }
+  }
+  return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+  return {
+    staticClass: concat(child.staticClass, parent.staticClass),
+    class: isDef(child.class)
+      ? [child.class, parent.class]
+      : parent.class
+  }
+}
+
+function renderClass (
+  staticClass,
+  dynamicClass
+) {
+  if (isDef(staticClass) || isDef(dynamicClass)) {
+    return concat(staticClass, stringifyClass(dynamicClass))
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function concat (a, b) {
+  return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+  if (Array.isArray(value)) {
+    return stringifyArray(value)
+  }
+  if (isObject(value)) {
+    return stringifyObject(value)
+  }
+  if (typeof value === 'string') {
+    return value
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function stringifyArray (value) {
+  let res = '';
+  let stringified;
+  for (let i = 0, l = value.length; i < l; i++) {
+    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+      if (res) res += ' ';
+      res += stringified;
+    }
+  }
+  return res
+}
+
+function stringifyObject (value) {
+  let res = '';
+  for (const key in value) {
+    if (value[key]) {
+      if (res) res += ' ';
+      res += key;
+    }
+  }
+  return res
+}
+
+/*  */
+
+const namespaceMap = {
+  svg: 'http://www.w3.org/2000/svg',
+  math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+const isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+const isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+const isPreTag = (tag) => tag === 'pre';
+
+const isReservedTag = (tag) => {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+const unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+  /* istanbul ignore if */
+  if (!inBrowser) {
+    return true
+  }
+  if (isReservedTag(tag)) {
+    return false
+  }
+  tag = tag.toLowerCase();
+  /* istanbul ignore if */
+  if (unknownElementCache[tag] != null) {
+    return unknownElementCache[tag]
+  }
+  const el = document.createElement(tag);
+  if (tag.indexOf('-') > -1) {
+    // http://stackoverflow.com/a/28210364/1070244
+    return (unknownElementCache[tag] = (
+      el.constructor === window.HTMLUnknownElement ||
+      el.constructor === window.HTMLElement
+    ))
+  } else {
+    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+  }
+}
+
+const isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+  if (typeof el === 'string') {
+    const selected = document.querySelector(el);
+    if (!selected) {
+      "development" !== 'production' && warn(
+        'Cannot find element: ' + el
+      );
+      return document.createElement('div')
+    }
+    return selected
+  } else {
+    return el
+  }
+}
+
+/*  */
+
+function createElement$1 (tagName, vnode) {
+  const elm = document.createElement(tagName);
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple');
+  }
+  return elm
+}
+
+function createElementNS (namespace, tagName) {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+  return document.createTextNode(text)
+}
+
+function createComment (text) {
+  return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+  parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+  node.removeChild(child);
+}
+
+function appendChild (node, child) {
+  node.appendChild(child);
+}
+
+function parentNode (node) {
+  return node.parentNode
+}
+
+function nextSibling (node) {
+  return node.nextSibling
+}
+
+function tagName (node) {
+  return node.tagName
+}
+
+function setTextContent (node, text) {
+  node.textContent = text;
+}
+
+function setAttribute (node, key, val) {
+  node.setAttribute(key, val);
+}
+
+
+var nodeOps = Object.freeze({
+	createElement: createElement$1,
+	createElementNS: createElementNS,
+	createTextNode: createTextNode,
+	createComment: createComment,
+	insertBefore: insertBefore,
+	removeChild: removeChild,
+	appendChild: appendChild,
+	parentNode: parentNode,
+	nextSibling: nextSibling,
+	tagName: tagName,
+	setTextContent: setTextContent,
+	setAttribute: setAttribute
+});
+
+/*  */
+
+var ref = {
+  create (_, vnode) {
+    registerRef(vnode);
+  },
+  update (oldVnode, vnode) {
+    if (oldVnode.data.ref !== vnode.data.ref) {
+      registerRef(oldVnode, true);
+      registerRef(vnode);
+    }
+  },
+  destroy (vnode) {
+    registerRef(vnode, true);
+  }
+};
+
+function registerRef (vnode, isRemoval) {
+  const key = vnode.data.ref;
+  if (!key) return
+
+  const vm = vnode.context;
+  const ref = vnode.componentInstance || vnode.elm;
+  const refs = vm.$refs;
+  if (isRemoval) {
+    if (Array.isArray(refs[key])) {
+      remove(refs[key], ref);
+    } else if (refs[key] === ref) {
+      refs[key] = undefined;
+    }
+  } else {
+    if (vnode.data.refInFor) {
+      if (!Array.isArray(refs[key])) {
+        refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
+      }
+    } else {
+      refs[key] = ref;
+    }
+  }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+const emptyNode = new VNode('', {}, []);
+
+const hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function sameVnode (a, b) {
+  return (
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
+  )
+}
+
+function sameInputType (a, b) {
+  if (a.tag !== 'input') return true
+  let i;
+  const typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+  const typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+  let i, key;
+  const map = {};
+  for (i = beginIdx; i <= endIdx; ++i) {
+    key = children[i].key;
+    if (isDef(key)) map[key] = i;
+  }
+  return map
+}
+
+function createPatchFunction (backend) {
+  let i, j;
+  const cbs = {};
+
+  const { modules, nodeOps } = backend;
+
+  for (i = 0; i < hooks.length; ++i) {
+    cbs[hooks[i]] = [];
+    for (j = 0; j < modules.length; ++j) {
+      if (isDef(modules[j][hooks[i]])) {
+        cbs[hooks[i]].push(modules[j][hooks[i]]);
+      }
+    }
+  }
+
+  function emptyNodeAt (elm) {
+    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+  }
+
+  function createRmCb (childElm, listeners) {
+    function remove () {
+      if (--remove.listeners === 0) {
+        removeNode(childElm);
+      }
+    }
+    remove.listeners = listeners;
+    return remove
+  }
+
+  function removeNode (el) {
+    const parent = nodeOps.parentNode(el);
+    // element may have already been removed due to v-html / v-text
+    if (isDef(parent)) {
+      nodeOps.removeChild(parent, el);
+    }
+  }
+
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(ignore => {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  let creatingElmInVPre = 0;
+  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+    vnode.isRootInsert = !nested; // for transition enter check
+    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+      return
+    }
+
+    const data = vnode.data;
+    const children = vnode.children;
+    const tag = vnode.tag;
+    if (isDef(tag)) {
+      {
+        if (data && data.pre) {
+          creatingElmInVPre++;
+        }
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+          warn(
+            'Unknown custom element: <' + tag + '> - did you ' +
+            'register the component correctly? For recursive components, ' +
+            'make sure to provide the "name" option.',
+            vnode.context
+          );
+        }
+      }
+      vnode.elm = vnode.ns
+        ? nodeOps.createElementNS(vnode.ns, tag)
+        : nodeOps.createElement(tag, vnode);
+      setScope(vnode);
+
+      /* istanbul ignore if */
+      {
+        createChildren(vnode, children, insertedVnodeQueue);
+        if (isDef(data)) {
+          invokeCreateHooks(vnode, insertedVnodeQueue);
+        }
+        insert(parentElm, vnode.elm, refElm);
+      }
+
+      if ("development" !== 'production' && data && data.pre) {
+        creatingElmInVPre--;
+      }
+    } else if (isTrue(vnode.isComment)) {
+      vnode.elm = nodeOps.createComment(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    } else {
+      vnode.elm = nodeOps.createTextNode(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    }
+  }
+
+  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    let i = vnode.data;
+    if (isDef(i)) {
+      const isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+      if (isDef(i = i.hook) && isDef(i = i.init)) {
+        i(vnode, false /* hydrating */, parentElm, refElm);
+      }
+      // after calling the init hook, if the vnode is a child component
+      // it should've created a child instance and mounted it. the child
+      // component also has set the placeholder vnode's elm.
+      // in that case we can just return the element and be done.
+      if (isDef(vnode.componentInstance)) {
+        initComponent(vnode, insertedVnodeQueue);
+        if (isTrue(isReactivated)) {
+          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+        }
+        return true
+      }
+    }
+  }
+
+  function initComponent (vnode, insertedVnodeQueue) {
+    if (isDef(vnode.data.pendingInsert)) {
+      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
+    }
+    vnode.elm = vnode.componentInstance.$el;
+    if (isPatchable(vnode)) {
+      invokeCreateHooks(vnode, insertedVnodeQueue);
+      setScope(vnode);
+    } else {
+      // empty component root.
+      // skip all element-related modules except for ref (#3455)
+      registerRef(vnode);
+      // make sure to invoke the insert hook
+      insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    let i;
+    // hack for #4339: a reactivated component with inner transition
+    // does not trigger because the inner node's created hooks are not called
+    // again. It's not ideal to involve module-specific logic in here but
+    // there doesn't seem to be a better way to do it.
+    let innerNode = vnode;
+    while (innerNode.componentInstance) {
+      innerNode = innerNode.componentInstance._vnode;
+      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+        for (i = 0; i < cbs.activate.length; ++i) {
+          cbs.activate[i](emptyNode, innerNode);
+        }
+        insertedVnodeQueue.push(innerNode);
+        break
+      }
+    }
+    // unlike a newly created component,
+    // a reactivated keep-alive component doesn't insert itself
+    insert(parentElm, vnode.elm, refElm);
+  }
+
+  function insert (parent, elm, ref$$1) {
+    if (isDef(parent)) {
+      if (isDef(ref$$1)) {
+        if (ref$$1.parentNode === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
+        }
+      } else {
+        nodeOps.appendChild(parent, elm);
+      }
+    }
+  }
+
+  function createChildren (vnode, children, insertedVnodeQueue) {
+    if (Array.isArray(children)) {
+      for (let i = 0; i < children.length; ++i) {
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+      }
+    } else if (isPrimitive(vnode.text)) {
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+    }
+  }
+
+  function isPatchable (vnode) {
+    while (vnode.componentInstance) {
+      vnode = vnode.componentInstance._vnode;
+    }
+    return isDef(vnode.tag)
+  }
+
+  function invokeCreateHooks (vnode, insertedVnodeQueue) {
+    for (let i = 0; i < cbs.create.length; ++i) {
+      cbs.create[i](emptyNode, vnode);
+    }
+    i = vnode.data.hook; // Reuse variable
+    if (isDef(i)) {
+      if (isDef(i.create)) i.create(emptyNode, vnode);
+      if (isDef(i.insert)) insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  // set scope id attribute for scoped CSS.
+  // this is implemented as a special case to avoid the overhead
+  // of going through the normal attribute patching process.
+  function setScope (vnode) {
+    let i;
+    if (isDef(i = vnode.functionalScopeId)) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    } else {
+      let ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setAttribute(vnode.elm, i, '');
+        }
+        ancestor = ancestor.parent;
+      }
+    }
+    // for slot content they should also get the scopeId from the host instance.
+    if (isDef(i = activeInstance) &&
+      i !== vnode.context &&
+      i !== vnode.functionalContext &&
+      isDef(i = i.$options._scopeId)
+    ) {
+      nodeOps.setAttribute(vnode.elm, i, '');
+    }
+  }
+
+  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+    }
+  }
+
+  function invokeDestroyHook (vnode) {
+    let i, j;
+    const data = vnode.data;
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.destroy)) i(vnode);
+      for (i = 0; i < cbs.destroy.length; ++i) cbs.destroy[i](vnode);
+    }
+    if (isDef(i = vnode.children)) {
+      for (j = 0; j < vnode.children.length; ++j) {
+        invokeDestroyHook(vnode.children[j]);
+      }
+    }
+  }
+
+  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      const ch = vnodes[startIdx];
+      if (isDef(ch)) {
+        if (isDef(ch.tag)) {
+          removeAndInvokeRemoveHook(ch);
+          invokeDestroyHook(ch);
+        } else { // Text node
+          removeNode(ch.elm);
+        }
+      }
+    }
+  }
+
+  function removeAndInvokeRemoveHook (vnode, rm) {
+    if (isDef(rm) || isDef(vnode.data)) {
+      let i;
+      const listeners = cbs.remove.length + 1;
+      if (isDef(rm)) {
+        // we have a recursively passed down rm callback
+        // increase the listeners count
+        rm.listeners += listeners;
+      } else {
+        // directly removing
+        rm = createRmCb(vnode.elm, listeners);
+      }
+      // recursively invoke hooks on child component root node
+      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+        removeAndInvokeRemoveHook(i, rm);
+      }
+      for (i = 0; i < cbs.remove.length; ++i) {
+        cbs.remove[i](vnode, rm);
+      }
+      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+        i(vnode, rm);
+      } else {
+        rm();
+      }
+    } else {
+      removeNode(vnode.elm);
+    }
+  }
+
+  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+    let oldStartIdx = 0;
+    let newStartIdx = 0;
+    let oldEndIdx = oldCh.length - 1;
+    let oldStartVnode = oldCh[0];
+    let oldEndVnode = oldCh[oldEndIdx];
+    let newEndIdx = newCh.length - 1;
+    let newStartVnode = newCh[0];
+    let newEndVnode = newCh[newEndIdx];
+    let oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+    // removeOnly is a special flag used only by <transition-group>
+    // to ensure removed elements stay in correct relative positions
+    // during leaving transitions
+    const canMove = !removeOnly;
+
+    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+      if (isUndef(oldStartVnode)) {
+        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+      } else if (isUndef(oldEndVnode)) {
+        oldEndVnode = oldCh[--oldEndIdx];
+      } else if (sameVnode(oldStartVnode, newStartVnode)) {
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        oldStartVnode = oldCh[++oldStartIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else if (sameVnode(oldEndVnode, newEndVnode)) {
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+        oldStartVnode = oldCh[++oldStartIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else {
+        if (isUndef(oldKeyToIdx)) oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+        if (isUndef(idxInOld)) { // New element
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+        } else {
+          vnodeToMove = oldCh[idxInOld];
+          /* istanbul ignore if */
+          if ("development" !== 'production' && !vnodeToMove) {
+            warn(
+              'It seems there are duplicate keys that is causing an update error. ' +
+              'Make sure each v-for item has a unique key.'
+            );
+          }
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            oldCh[idxInOld] = undefined;
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+          } else {
+            // same key but different element. treat as new element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          }
+        }
+        newStartVnode = newCh[++newStartIdx];
+      }
+    }
+    if (oldStartIdx > oldEndIdx) {
+      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+    } else if (newStartIdx > newEndIdx) {
+      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    }
+  }
+
+  function findIdxInOld (node, oldCh, start, end) {
+    for (let i = start; i < end; i++) {
+      const c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) return i
+    }
+  }
+
+  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+    if (oldVnode === vnode) {
+      return
+    }
+
+    const elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
+    // reuse element for static trees.
+    // note we only do this if the vnode is cloned -
+    // if the new node is not cloned it means the render functions have been
+    // reset by the hot-reload-api and we need to do a proper re-render.
+    if (isTrue(vnode.isStatic) &&
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
+      vnode.componentInstance = oldVnode.componentInstance;
+      return
+    }
+
+    let i;
+    const data = vnode.data;
+    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+      i(oldVnode, vnode);
+    }
+
+    const oldCh = oldVnode.children;
+    const ch = vnode.children;
+    if (isDef(data) && isPatchable(vnode)) {
+      for (i = 0; i < cbs.update.length; ++i) cbs.update[i](oldVnode, vnode);
+      if (isDef(i = data.hook) && isDef(i = i.update)) i(oldVnode, vnode);
+    }
+    if (isUndef(vnode.text)) {
+      if (isDef(oldCh) && isDef(ch)) {
+        if (oldCh !== ch) updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly);
+      } else if (isDef(ch)) {
+        if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '');
+        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+      } else if (isDef(oldCh)) {
+        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+      } else if (isDef(oldVnode.text)) {
+        nodeOps.setTextContent(elm, '');
+      }
+    } else if (oldVnode.text !== vnode.text) {
+      nodeOps.setTextContent(elm, vnode.text);
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.postpatch)) i(oldVnode, vnode);
+    }
+  }
+
+  function invokeInsertHook (vnode, queue, initial) {
+    // delay insert hooks for component root nodes, invoke them after the
+    // element is really inserted
+    if (isTrue(initial) && isDef(vnode.parent)) {
+      vnode.parent.data.pendingInsert = queue;
+    } else {
+      for (let i = 0; i < queue.length; ++i) {
+        queue[i].data.hook.insert(queue[i]);
+      }
+    }
+  }
+
+  let hydrationBailed = false;
+  // list of modules that can skip create hook during hydration because they
+  // are already rendered on the client or has no need for initialization
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  const isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+  // Note: this is a browser-only function so we can assume elms are DOM nodes.
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    let i;
+    const { tag, data, children } = vnode;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
+    // assert node match
+    {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
+        return false
+      }
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.init)) i(vnode, true /* hydrating */);
+      if (isDef(i = vnode.componentInstance)) {
+        // child component. it should have hydrated its own tree.
+        initComponent(vnode, insertedVnodeQueue);
+        return true
+      }
+    }
+    if (isDef(tag)) {
+      if (isDef(children)) {
+        // empty element, allow client to pick up and populate children
+        if (!elm.hasChildNodes()) {
+          createChildren(vnode, children, insertedVnodeQueue);
+        } else {
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
+            }
+          } else {
+            // iterate and compare children lists
+            let childrenMatch = true;
+            let childNode = elm.firstChild;
+            for (let i = 0; i < children.length; i++) {
+              if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue, inVPre)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if ("development" !== 'production' &&
+                typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
+            }
+          }
+        }
+      }
+      if (isDef(data)) {
+        let fullInvoke = false;
+        for (const key in data) {
+          if (!isRenderedModule(key)) {
+            fullInvoke = true;
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+            break
+          }
+        }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
+      }
+    } else if (elm.data !== vnode.text) {
+      elm.data = vnode.text;
+    }
+    return true
+  }
+
+  function assertNodeMatch (node, vnode, inVPre) {
+    if (isDef(vnode.tag)) {
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
+        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+      )
+    } else {
+      return node.nodeType === (vnode.isComment ? 8 : 3)
+    }
+  }
+
+  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+    if (isUndef(vnode)) {
+      if (isDef(oldVnode)) invokeDestroyHook(oldVnode);
+      return
+    }
+
+    let isInitialPatch = false;
+    const insertedVnodeQueue = [];
+
+    if (isUndef(oldVnode)) {
+      // empty mount (likely as component), create new root element
+      isInitialPatch = true;
+      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+    } else {
+      const isRealElement = isDef(oldVnode.nodeType);
+      if (!isRealElement && sameVnode(oldVnode, vnode)) {
+        // patch existing root node
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+      } else {
+        if (isRealElement) {
+          // mounting to a real element
+          // check if this is server-rendered content and if we can perform
+          // a successful hydration.
+          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+            oldVnode.removeAttribute(SSR_ATTR);
+            hydrating = true;
+          }
+          if (isTrue(hydrating)) {
+            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+              invokeInsertHook(vnode, insertedVnodeQueue, true);
+              return oldVnode
+            } else {
+              warn(
+                'The client-side rendered virtual DOM tree is not matching ' +
+                'server-rendered content. This is likely caused by incorrect ' +
+                'HTML markup, for example nesting block-level elements inside ' +
+                '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                'full client-side render.'
+              );
+            }
+          }
+          // either not server-rendered, or hydration failed.
+          // create an empty node and replace it
+          oldVnode = emptyNodeAt(oldVnode);
+        }
+
+        // replacing existing element
+        const oldElm = oldVnode.elm;
+        const parentElm = nodeOps.parentNode(oldElm);
+
+        // create new node
+        createElm(
+          vnode,
+          insertedVnodeQueue,
+          // extremely rare edge case: do not insert if old element is in a
+          // leaving transition. Only happens when combining transition +
+          // keep-alive + HOCs. (#4590)
+          oldElm._leaveCb ? null : parentElm,
+          nodeOps.nextSibling(oldElm)
+        );
+
+        // update parent placeholder node element, recursively
+        if (isDef(vnode.parent)) {
+          let ancestor = vnode.parent;
+          const patchable = isPatchable(vnode);
+          while (ancestor) {
+            for (let i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
+            ancestor.elm = vnode.elm;
+            if (patchable) {
+              for (let i = 0; i < cbs.create.length; ++i) {
+                cbs.create[i](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              const insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (let i = 1; i < insert.fns.length; i++) {
+                  insert.fns[i]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
+            }
+            ancestor = ancestor.parent;
+          }
+        }
+
+        // destroy old node
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
+        } else if (isDef(oldVnode.tag)) {
+          invokeDestroyHook(oldVnode);
+        }
+      }
+    }
+
+    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+    return vnode.elm
+  }
+}
+
+/*  */
+
+var directives = {
+  create: updateDirectives,
+  update: updateDirectives,
+  destroy: function unbindDirectives (vnode) {
+    updateDirectives(vnode, emptyNode);
+  }
+};
+
+function updateDirectives (oldVnode, vnode) {
+  if (oldVnode.data.directives || vnode.data.directives) {
+    _update(oldVnode, vnode);
+  }
+}
+
+function _update (oldVnode, vnode) {
+  const isCreate = oldVnode === emptyNode;
+  const isDestroy = vnode === emptyNode;
+  const oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+  const newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+  const dirsWithInsert = [];
+  const dirsWithPostpatch = [];
+
+  let key, oldDir, dir;
+  for (key in newDirs) {
+    oldDir = oldDirs[key];
+    dir = newDirs[key];
+    if (!oldDir) {
+      // new directive, bind
+      callHook$1(dir, 'bind', vnode, oldVnode);
+      if (dir.def && dir.def.inserted) {
+        dirsWithInsert.push(dir);
+      }
+    } else {
+      // existing directive, update
+      dir.oldValue = oldDir.value;
+      callHook$1(dir, 'update', vnode, oldVnode);
+      if (dir.def && dir.def.componentUpdated) {
+        dirsWithPostpatch.push(dir);
+      }
+    }
+  }
+
+  if (dirsWithInsert.length) {
+    const callInsert = () => {
+      for (let i = 0; i < dirsWithInsert.length; i++) {
+        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+      }
+    };
+    if (isCreate) {
+      mergeVNodeHook(vnode, 'insert', callInsert);
+    } else {
+      callInsert();
+    }
+  }
+
+  if (dirsWithPostpatch.length) {
+    mergeVNodeHook(vnode, 'postpatch', () => {
+      for (let i = 0; i < dirsWithPostpatch.length; i++) {
+        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+      }
+    });
+  }
+
+  if (!isCreate) {
+    for (key in oldDirs) {
+      if (!newDirs[key]) {
+        // no longer present, unbind
+        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+      }
+    }
+  }
+}
+
+const emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+  dirs,
+  vm
+) {
+  const res = Object.create(null);
+  if (!dirs) {
+    return res
+  }
+  let i, dir;
+  for (i = 0; i < dirs.length; i++) {
+    dir = dirs[i];
+    if (!dir.modifiers) {
+      dir.modifiers = emptyModifiers;
+    }
+    res[getRawDirName(dir)] = dir;
+    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+  }
+  return res
+}
+
+function getRawDirName (dir) {
+  return dir.rawName || `${dir.name}.${Object.keys(dir.modifiers || {}).join('.')}`
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+  const fn = dir.def && dir.def[hook];
+  if (fn) {
+    try {
+      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+    } catch (e) {
+      handleError(e, vnode.context, `directive ${dir.name} ${hook} hook`);
+    }
+  }
+}
+
+var baseModules = [
+  ref,
+  directives
+];
+
+/*  */
+
+function updateAttrs (oldVnode, vnode) {
+  const opts = vnode.componentOptions;
+  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+    return
+  }
+  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+    return
+  }
+  let key, cur, old;
+  const elm = vnode.elm;
+  const oldAttrs = oldVnode.data.attrs || {};
+  let attrs = vnode.data.attrs || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(attrs.__ob__)) {
+    attrs = vnode.data.attrs = extend({}, attrs);
+  }
+
+  for (key in attrs) {
+    cur = attrs[key];
+    old = oldAttrs[key];
+    if (old !== cur) {
+      setAttr(elm, key, cur);
+    }
+  }
+  // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
+  /* istanbul ignore if */
+  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+    setAttr(elm, 'value', attrs.value);
+  }
+  for (key in oldAttrs) {
+    if (isUndef(attrs[key])) {
+      if (isXlink(key)) {
+        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else if (!isEnumeratedAttr(key)) {
+        elm.removeAttribute(key);
+      }
+    }
+  }
+}
+
+function setAttr (el, key, value) {
+  if (isBooleanAttr(key)) {
+    // set attribute for blank value
+    // e.g. <option disabled>Select one</option>
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
+    }
+  } else if (isEnumeratedAttr(key)) {
+    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+  } else if (isXlink(key)) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+    } else {
+      el.setAttributeNS(xlinkNS, key, value);
+    }
+  } else {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      el.setAttribute(key, value);
+    }
+  }
+}
+
+var attrs = {
+  create: updateAttrs,
+  update: updateAttrs
+};
+
+/*  */
+
+function updateClass (oldVnode, vnode) {
+  const el = vnode.elm;
+  const data = vnode.data;
+  const oldData = oldVnode.data;
+  if (
+    isUndef(data.staticClass) &&
+    isUndef(data.class) && (
+      isUndef(oldData) || (
+        isUndef(oldData.staticClass) &&
+        isUndef(oldData.class)
+      )
+    )
+  ) {
+    return
+  }
+
+  let cls = genClassForVnode(vnode);
+
+  // handle transition classes
+  const transitionClass = el._transitionClasses;
+  if (isDef(transitionClass)) {
+    cls = concat(cls, stringifyClass(transitionClass));
+  }
+
+  // set the class
+  if (cls !== el._prevClass) {
+    el.setAttribute('class', cls);
+    el._prevClass = cls;
+  }
+}
+
+var klass = {
+  create: updateClass,
+  update: updateClass
+};
+
+/*  */
+
+const validDivisionCharRE = /[\w).+\-_$\]]/;
+
+function parseFilters (exp) {
+  let inSingle = false;
+  let inDouble = false;
+  let inTemplateString = false;
+  let inRegex = false;
+  let curly = 0;
+  let square = 0;
+  let paren = 0;
+  let lastFilterIndex = 0;
+  let c, prev, i, expression, filters;
+
+  for (i = 0; i < exp.length; i++) {
+    prev = c;
+    c = exp.charCodeAt(i);
+    if (inSingle) {
+      if (c === 0x27 && prev !== 0x5C) inSingle = false;
+    } else if (inDouble) {
+      if (c === 0x22 && prev !== 0x5C) inDouble = false;
+    } else if (inTemplateString) {
+      if (c === 0x60 && prev !== 0x5C) inTemplateString = false;
+    } else if (inRegex) {
+      if (c === 0x2f && prev !== 0x5C) inRegex = false;
+    } else if (
+      c === 0x7C && // pipe
+      exp.charCodeAt(i + 1) !== 0x7C &&
+      exp.charCodeAt(i - 1) !== 0x7C &&
+      !curly && !square && !paren
+    ) {
+      if (expression === undefined) {
+        // first filter, end of expression
+        lastFilterIndex = i + 1;
+        expression = exp.slice(0, i).trim();
+      } else {
+        pushFilter();
+      }
+    } else {
+      switch (c) {
+        case 0x22: inDouble = true; break         // "
+        case 0x27: inSingle = true; break         // '
+        case 0x60: inTemplateString = true; break // `
+        case 0x28: paren++; break                 // (
+        case 0x29: paren--; break                 // )
+        case 0x5B: square++; break                // [
+        case 0x5D: square--; break                // ]
+        case 0x7B: curly++; break                 // {
+        case 0x7D: curly--; break                 // }
+      }
+      if (c === 0x2f) { // /
+        let j = i - 1;
+        let p;
+        // find first non-whitespace prev char
+        for (; j >= 0; j--) {
+          p = exp.charAt(j);
+          if (p !== ' ') break
+        }
+        if (!p || !validDivisionCharRE.test(p)) {
+          inRegex = true;
+        }
+      }
+    }
+  }
+
+  if (expression === undefined) {
+    expression = exp.slice(0, i).trim();
+  } else if (lastFilterIndex !== 0) {
+    pushFilter();
+  }
+
+  function pushFilter () {
+    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+    lastFilterIndex = i + 1;
+  }
+
+  if (filters) {
+    for (i = 0; i < filters.length; i++) {
+      expression = wrapFilter(expression, filters[i]);
+    }
+  }
+
+  return expression
+}
+
+function wrapFilter (exp, filter) {
+  const i = filter.indexOf('(');
+  if (i < 0) {
+    // _f: resolveFilter
+    return `_f("${filter}")(${exp})`
+  } else {
+    const name = filter.slice(0, i);
+    const args = filter.slice(i + 1);
+    return `_f("${name}")(${exp},${args}`
+  }
+}
+
+/*  */
+
+function baseWarn (msg) {
+  console.error(`[Vue compiler]: ${msg}`);
+}
+
+function pluckModuleFunction (
+  modules,
+  key
+) {
+  return modules
+    ? modules.map(m => m[key]).filter(_ => _)
+    : []
+}
+
+function addProp (el, name, value) {
+  (el.props || (el.props = [])).push({ name, value });
+}
+
+function addAttr (el, name, value) {
+  (el.attrs || (el.attrs = [])).push({ name, value });
+}
+
+function addDirective (
+  el,
+  name,
+  rawName,
+  value,
+  arg,
+  modifiers
+) {
+  (el.directives || (el.directives = [])).push({ name, rawName, value, arg, modifiers });
+}
+
+function addHandler (
+  el,
+  name,
+  value,
+  modifiers,
+  important,
+  warn
+) {
+  modifiers = modifiers || emptyObject;
+  // warn prevent and passive modifier
+  /* istanbul ignore if */
+  if (
+    "development" !== 'production' && warn &&
+    modifiers.prevent && modifiers.passive
+  ) {
+    warn(
+      'passive and prevent can\'t be used together. ' +
+      'Passive handler can\'t prevent default event.'
+    );
+  }
+
+  // check capture modifier
+  if (modifiers.capture) {
+    delete modifiers.capture;
+    name = '!' + name; // mark the event as captured
+  }
+  if (modifiers.once) {
+    delete modifiers.once;
+    name = '~' + name; // mark the event as once
+  }
+  /* istanbul ignore if */
+  if (modifiers.passive) {
+    delete modifiers.passive;
+    name = '&' + name; // mark the event as passive
+  }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
+  let events;
+  if (modifiers.native) {
+    delete modifiers.native;
+    events = el.nativeEvents || (el.nativeEvents = {});
+  } else {
+    events = el.events || (el.events = {});
+  }
+
+  const newHandler = { value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
+  const handlers = events[name];
+  /* istanbul ignore if */
+  if (Array.isArray(handlers)) {
+    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+  } else if (handlers) {
+    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+  } else {
+    events[name] = newHandler;
+  }
+}
+
+function getBindingAttr (
+  el,
+  name,
+  getStatic
+) {
+  const dynamicValue =
+    getAndRemoveAttr(el, ':' + name) ||
+    getAndRemoveAttr(el, 'v-bind:' + name);
+  if (dynamicValue != null) {
+    return parseFilters(dynamicValue)
+  } else if (getStatic !== false) {
+    const staticValue = getAndRemoveAttr(el, name);
+    if (staticValue != null) {
+      return JSON.stringify(staticValue)
+    }
+  }
+}
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
+  let val;
+  if ((val = el.attrsMap[name]) != null) {
+    const list = el.attrsList;
+    for (let i = 0, l = list.length; i < l; i++) {
+      if (list[i].name === name) {
+        list.splice(i, 1);
+        break
+      }
+    }
+  }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
+  return val
+}
+
+/*  */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  const { number, trim } = modifiers || {};
+
+  const baseValueExpression = '$$v';
+  let valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      `(typeof ${baseValueExpression} === 'string'` +
+        `? ${baseValueExpression}.trim()` +
+        `: ${baseValueExpression})`;
+  }
+  if (number) {
+    valueExpression = `_n(${valueExpression})`;
+  }
+  const assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: `(${value})`,
+    expression: `"${value}"`,
+    callback: `function (${baseValueExpression}) {${assignment}}`
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  const res = parseModel(value);
+  if (res.key === null) {
+    return `${value}=${assignment}`
+  } else {
+    return `$set(${res.exp}, ${res.key}, ${assignment})`
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+let len;
+let str;
+let chr;
+let index$1;
+let expressionPos;
+let expressionEndPos;
+
+
+
+function parseModel (val) {
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index$1)
+}
+
+function eof () {
+  return index$1 >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  let inBracket = 1;
+  expressionPos = index$1;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) inBracket++;
+    if (chr === 0x5D) inBracket--;
+    if (inBracket === 0) {
+      expressionEndPos = index$1;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  const stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
+    }
+  }
+}
+
+/*  */
+
+let warn$1;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+const RANGE_TOKEN = '__r';
+const CHECKBOX_RADIO_TOKEN = '__c';
+
+function model (
+  el,
+  dir,
+  _warn
+) {
+  warn$1 = _warn;
+  const value = dir.value;
+  const modifiers = dir.modifiers;
+  const tag = el.tag;
+  const type = el.attrsMap.type;
+
+  {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$1(
+        `<${el.tag} v-model="${value}" type="file">:\n` +
+        `File inputs are read only. Use a v-on:change listener instead.`
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else {
+    warn$1(
+      `<${el.tag} v-model="${value}">: ` +
+      `v-model is not supported on this element type. ` +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.'
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  const number = modifiers && modifiers.number;
+  const valueBinding = getBindingAttr(el, 'value') || 'null';
+  const trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  const falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    `Array.isArray(${value})` +
+      `?_i(${value},${valueBinding})>-1` + (
+        trueValueBinding === 'true'
+          ? `:(${value})`
+          : `:_q(${value},${trueValueBinding})`
+      )
+  );
+  addHandler(el, 'change',
+    `var $$a=${value},` +
+        '$$el=$event.target,' +
+        `$$c=$$el.checked?(${trueValueBinding}):(${falseValueBinding});` +
+    'if(Array.isArray($$a)){' +
+      `var $$v=${number ? '_n(' + valueBinding + ')' : valueBinding},` +
+          '$$i=_i($$a,$$v);' +
+      `if($$el.checked){$$i<0&&(${value}=$$a.concat([$$v]))}` +
+      `else{$$i>-1&&(${value}=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}` +
+    `}else{${genAssignmentCode(value, '$$c')}}`,
+    null, true
+  );
+}
+
+function genRadioModel (
+    el,
+    value,
+    modifiers
+) {
+  const number = modifiers && modifiers.number;
+  let valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? `_n(${valueBinding})` : valueBinding;
+  addProp(el, 'checked', `_q(${value},${valueBinding})`);
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+    el,
+    value,
+    modifiers
+) {
+  const number = modifiers && modifiers.number;
+  const selectedVal = `Array.prototype.filter` +
+    `.call($event.target.options,function(o){return o.selected})` +
+    `.map(function(o){var val = "_value" in o ? o._value : o.value;` +
+    `return ${number ? '_n(val)' : 'val'}})`;
+
+  const assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  let code = `var $$selectedVal = ${selectedVal};`;
+  code = `${code} ${genAssignmentCode(value, assignment)}`;
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  const type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  {
+    const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    if (value) {
+      const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        `${binding}="${value}" conflicts with v-model on the same element ` +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
+  const { lazy, number, trim } = modifiers || {};
+  const needCompositionGuard = !lazy && type !== 'range';
+  const event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  let valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = `$event.target.value.trim()`;
+  }
+  if (number) {
+    valueExpression = `_n(${valueExpression})`;
+  }
+
+  let code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = `if($event.target.composing)return;${code}`;
+  }
+
+  addProp(el, 'value', `(${value})`);
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+// normalize v-model event tokens that can only be determined at runtime.
+// it's important to place the event as the first in the array because
+// the whole point is ensuring the v-model callback gets called before
+// user-attached handlers.
+function normalizeEvents (on) {
+  /* istanbul ignore if */
+  if (isDef(on[RANGE_TOKEN])) {
+    // IE input[type=range] only supports `change` event
+    const event = isIE ? 'change' : 'input';
+    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+    delete on[RANGE_TOKEN];
+  }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
+}
+
+let target$1;
+
+function createOnceHandler (handler, event, capture) {
+  const _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    const res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
+function add$1 (
+  event,
+  handler,
+  once$$1,
+  capture,
+  passive
+) {
+  handler = withMacroTask(handler);
+  if (once$$1) handler = createOnceHandler(handler, event, capture);
+  target$1.addEventListener(
+    event,
+    handler,
+    supportsPassive
+      ? { capture, passive }
+      : capture
+  );
+}
+
+function remove$2 (
+  event,
+  handler,
+  capture,
+  _target
+) {
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
+}
+
+function updateDOMListeners (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+    return
+  }
+  const on = vnode.data.on || {};
+  const oldOn = oldVnode.data.on || {};
+  target$1 = vnode.elm;
+  normalizeEvents(on);
+  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
+}
+
+var events = {
+  create: updateDOMListeners,
+  update: updateDOMListeners
+};
+
+/*  */
+
+function updateDOMProps (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+    return
+  }
+  let key, cur;
+  const elm = vnode.elm;
+  const oldProps = oldVnode.data.domProps || {};
+  let props = vnode.data.domProps || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(props.__ob__)) {
+    props = vnode.data.domProps = extend({}, props);
+  }
+
+  for (key in oldProps) {
+    if (isUndef(props[key])) {
+      elm[key] = '';
+    }
+  }
+  for (key in props) {
+    cur = props[key];
+    // ignore children if the node has textContent or innerHTML,
+    // as these will throw away existing DOM nodes and cause removal errors
+    // on subsequent patches (#3360)
+    if (key === 'textContent' || key === 'innerHTML') {
+      if (vnode.children) vnode.children.length = 0;
+      if (cur === oldProps[key]) continue
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
+    }
+
+    if (key === 'value') {
+      // store value as _value as well since
+      // non-string values will be stringified
+      elm._value = cur;
+      // avoid resetting cursor position when value is the same
+      const strCur = isUndef(cur) ? '' : String(cur);
+      if (shouldUpdateValue(elm, strCur)) {
+        elm.value = strCur;
+      }
+    } else {
+      elm[key] = cur;
+    }
+  }
+}
+
+// check platforms/web/util/attrs.js acceptValue
+
+
+function shouldUpdateValue (elm, checkVal) {
+  return (!elm.composing && (
+    elm.tagName === 'OPTION' ||
+    isDirty(elm, checkVal) ||
+    isInputChanged(elm, checkVal)
+  ))
+}
+
+function isDirty (elm, checkVal) {
+  // return true when textbox (.number and .trim) loses focus and its value is
+  // not equal to the updated value
+  let notInFocus = true;
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm; } catch (e) {}
+  return notInFocus && elm.value !== checkVal
+}
+
+function isInputChanged (elm, newVal) {
+  const value = elm.value;
+  const modifiers = elm._vModifiers; // injected by v-model runtime
+  if (isDef(modifiers) && modifiers.number) {
+    return toNumber(value) !== toNumber(newVal)
+  }
+  if (isDef(modifiers) && modifiers.trim) {
+    return value.trim() !== newVal.trim()
+  }
+  return value !== newVal
+}
+
+var domProps = {
+  create: updateDOMProps,
+  update: updateDOMProps
+};
+
+/*  */
+
+const parseStyleText = cached(function (cssText) {
+  const res = {};
+  const listDelimiter = /;(?![^(]*\))/g;
+  const propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      var tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// merge static and dynamic style data on the same vnode
+function normalizeStyleData (data) {
+  const style = normalizeStyleBinding(data.style);
+  // static style is pre-processed into an object during compilation
+  // and is always a fresh object, so it's safe to merge into it
+  return data.staticStyle
+    ? extend(data.staticStyle, style)
+    : style
+}
+
+// normalize possible array / string values into Object
+function normalizeStyleBinding (bindingStyle) {
+  if (Array.isArray(bindingStyle)) {
+    return toObject(bindingStyle)
+  }
+  if (typeof bindingStyle === 'string') {
+    return parseStyleText(bindingStyle)
+  }
+  return bindingStyle
+}
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+function getStyle (vnode, checkChild) {
+  const res = {};
+  let styleData;
+
+  if (checkChild) {
+    let childNode = vnode;
+    while (childNode.componentInstance) {
+      childNode = childNode.componentInstance._vnode;
+      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+        extend(res, styleData);
+      }
+    }
+  }
+
+  if ((styleData = normalizeStyleData(vnode.data))) {
+    extend(res, styleData);
+  }
+
+  let parentNode = vnode;
+  while ((parentNode = parentNode.parent)) {
+    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+      extend(res, styleData);
+    }
+  }
+  return res
+}
+
+/*  */
+
+const cssVarRE = /^--/;
+const importantRE = /\s*!important$/;
+const setProp = (el, name, val) => {
+  /* istanbul ignore if */
+  if (cssVarRE.test(name)) {
+    el.style.setProperty(name, val);
+  } else if (importantRE.test(val)) {
+    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+  } else {
+    const normalizedName = normalize(name);
+    if (Array.isArray(val)) {
+      // Support values array created by autoprefixer, e.g.
+      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+      // Set them one by one, and the browser will only set those it can recognize
+      for (let i = 0, len = val.length; i < len; i++) {
+        el.style[normalizedName] = val[i];
+      }
+    } else {
+      el.style[normalizedName] = val;
+    }
+  }
+};
+
+const vendorNames = ['Webkit', 'Moz', 'ms'];
+
+let emptyStyle;
+const normalize = cached(function (prop) {
+  emptyStyle = emptyStyle || document.createElement('div').style;
+  prop = camelize(prop);
+  if (prop !== 'filter' && (prop in emptyStyle)) {
+    return prop
+  }
+  const capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+  for (let i = 0; i < vendorNames.length; i++) {
+    const name = vendorNames[i] + capName;
+    if (name in emptyStyle) {
+      return name
+    }
+  }
+});
+
+function updateStyle (oldVnode, vnode) {
+  const data = vnode.data;
+  const oldData = oldVnode.data;
+
+  if (isUndef(data.staticStyle) && isUndef(data.style) &&
+    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  ) {
+    return
+  }
+
+  let cur, name;
+  const el = vnode.elm;
+  const oldStaticStyle = oldData.staticStyle;
+  const oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+
+  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+  const oldStyle = oldStaticStyle || oldStyleBinding;
+
+  const style = normalizeStyleBinding(vnode.data.style) || {};
+
+  // store normalized style under a different key for next diff
+  // make sure to clone it if it's reactive, since the user likely wants
+  // to mutate it.
+  vnode.data.normalizedStyle = isDef(style.__ob__)
+    ? extend({}, style)
+    : style;
+
+  const newStyle = getStyle(vnode, true);
+
+  for (name in oldStyle) {
+    if (isUndef(newStyle[name])) {
+      setProp(el, name, '');
+    }
+  }
+  for (name in newStyle) {
+    cur = newStyle[name];
+    if (cur !== oldStyle[name]) {
+      // ie9 setting to null has no effect, must use empty string
+      setProp(el, name, cur == null ? '' : cur);
+    }
+  }
+}
+
+var style = {
+  create: updateStyle,
+  update: updateStyle
+};
+
+/*  */
+
+/**
+ * Add class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function addClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(/\s+/).forEach(c => el.classList.add(c));
+    } else {
+      el.classList.add(cls);
+    }
+  } else {
+    const cur = ` ${el.getAttribute('class') || ''} `;
+    if (cur.indexOf(' ' + cls + ' ') < 0) {
+      el.setAttribute('class', (cur + cls).trim());
+    }
+  }
+}
+
+/**
+ * Remove class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function removeClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(/\s+/).forEach(c => el.classList.remove(c));
+    } else {
+      el.classList.remove(cls);
+    }
+    if (!el.classList.length) {
+      el.removeAttribute('class');
+    }
+  } else {
+    let cur = ` ${el.getAttribute('class') || ''} `;
+    const tar = ' ' + cls + ' ';
+    while (cur.indexOf(tar) >= 0) {
+      cur = cur.replace(tar, ' ');
+    }
+    cur = cur.trim();
+    if (cur) {
+      el.setAttribute('class', cur);
+    } else {
+      el.removeAttribute('class');
+    }
+  }
+}
+
+/*  */
+
+function resolveTransition (def) {
+  if (!def) {
+    return
+  }
+  /* istanbul ignore else */
+  if (typeof def === 'object') {
+    const res = {};
+    if (def.css !== false) {
+      extend(res, autoCssTransition(def.name || 'v'));
+    }
+    extend(res, def);
+    return res
+  } else if (typeof def === 'string') {
+    return autoCssTransition(def)
+  }
+}
+
+const autoCssTransition = cached(name => {
+  return {
+    enterClass: `${name}-enter`,
+    enterToClass: `${name}-enter-to`,
+    enterActiveClass: `${name}-enter-active`,
+    leaveClass: `${name}-leave`,
+    leaveToClass: `${name}-leave-to`,
+    leaveActiveClass: `${name}-leave-active`
+  }
+});
+
+const hasTransition = inBrowser && !isIE9;
+const TRANSITION = 'transition';
+const ANIMATION = 'animation';
+
+// Transition property/event sniffing
+let transitionProp = 'transition';
+let transitionEndEvent = 'transitionend';
+let animationProp = 'animation';
+let animationEndEvent = 'animationend';
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    transitionProp = 'WebkitTransition';
+    transitionEndEvent = 'webkitTransitionEnd';
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    animationProp = 'WebkitAnimation';
+    animationEndEvent = 'webkitAnimationEnd';
+  }
+}
+
+// binding to window is necessary to make hot reload work in IE in strict mode
+const raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ fn => fn();
+
+function nextFrame (fn) {
+  raf(() => {
+    raf(fn);
+  });
+}
+
+function addTransitionClass (el, cls) {
+  const transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+  if (transitionClasses.indexOf(cls) < 0) {
+    transitionClasses.push(cls);
+    addClass(el, cls);
+  }
+}
+
+function removeTransitionClass (el, cls) {
+  if (el._transitionClasses) {
+    remove(el._transitionClasses, cls);
+  }
+  removeClass(el, cls);
+}
+
+function whenTransitionEnds (
+  el,
+  expectedType,
+  cb
+) {
+  const { type, timeout, propCount } = getTransitionInfo(el, expectedType);
+  if (!type) return cb()
+  const event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+  let ended = 0;
+  const end = () => {
+    el.removeEventListener(event, onEnd);
+    cb();
+  };
+  const onEnd = e => {
+    if (e.target === el) {
+      if (++ended >= propCount) {
+        end();
+      }
+    }
+  };
+  setTimeout(() => {
+    if (ended < propCount) {
+      end();
+    }
+  }, timeout + 1);
+  el.addEventListener(event, onEnd);
+}
+
+const transformRE = /\b(transform|all)(,|$)/;
+
+function getTransitionInfo (el, expectedType) {
+  const styles = window.getComputedStyle(el);
+  const transitionDelays = styles[transitionProp + 'Delay'].split(', ');
+  const transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  const transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+  const animationDelays = styles[animationProp + 'Delay'].split(', ');
+  const animationDurations = styles[animationProp + 'Duration'].split(', ');
+  const animationTimeout = getTimeout(animationDelays, animationDurations);
+
+  let type;
+  let timeout = 0;
+  let propCount = 0;
+  /* istanbul ignore if */
+  if (expectedType === TRANSITION) {
+    if (transitionTimeout > 0) {
+      type = TRANSITION;
+      timeout = transitionTimeout;
+      propCount = transitionDurations.length;
+    }
+  } else if (expectedType === ANIMATION) {
+    if (animationTimeout > 0) {
+      type = ANIMATION;
+      timeout = animationTimeout;
+      propCount = animationDurations.length;
+    }
+  } else {
+    timeout = Math.max(transitionTimeout, animationTimeout);
+    type = timeout > 0
+      ? transitionTimeout > animationTimeout
+        ? TRANSITION
+        : ANIMATION
+      : null;
+    propCount = type
+      ? type === TRANSITION
+        ? transitionDurations.length
+        : animationDurations.length
+      : 0;
+  }
+  const hasTransform =
+    type === TRANSITION &&
+    transformRE.test(styles[transitionProp + 'Property']);
+  return {
+    type,
+    timeout,
+    propCount,
+    hasTransform
+  }
+}
+
+function getTimeout (delays, durations) {
+  /* istanbul ignore next */
+  while (delays.length < durations.length) {
+    delays = delays.concat(delays);
+  }
+
+  return Math.max.apply(null, durations.map((d, i) => {
+    return toMs(d) + toMs(delays[i])
+  }))
+}
+
+function toMs (s) {
+  return Number(s.slice(0, -1)) * 1000
+}
+
+/*  */
+
+function enter (vnode, toggleDisplay) {
+  const el = vnode.elm;
+
+  // call leave callback now
+  if (isDef(el._leaveCb)) {
+    el._leaveCb.cancelled = true;
+    el._leaveCb();
+  }
+
+  const data = resolveTransition(vnode.data.transition);
+  if (isUndef(data)) {
+    return
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._enterCb) || el.nodeType !== 1) {
+    return
+  }
+
+  const {
+    css,
+    type,
+    enterClass,
+    enterToClass,
+    enterActiveClass,
+    appearClass,
+    appearToClass,
+    appearActiveClass,
+    beforeEnter,
+    enter,
+    afterEnter,
+    enterCancelled,
+    beforeAppear,
+    appear,
+    afterAppear,
+    appearCancelled,
+    duration
+  } = data;
+
+  // activeInstance will always be the <transition> component managing this
+  // transition. One edge case to check is when the <transition> is placed
+  // as the root node of a child component. In that case we need to check
+  // <transition>'s parent for appear check.
+  let context = activeInstance;
+  let transitionNode = activeInstance.$vnode;
+  while (transitionNode && transitionNode.parent) {
+    transitionNode = transitionNode.parent;
+    context = transitionNode.context;
+  }
+
+  const isAppear = !context._isMounted || !vnode.isRootInsert;
+
+  if (isAppear && !appear && appear !== '') {
+    return
+  }
+
+  const startClass = isAppear && appearClass
+    ? appearClass
+    : enterClass;
+  const activeClass = isAppear && appearActiveClass
+    ? appearActiveClass
+    : enterActiveClass;
+  const toClass = isAppear && appearToClass
+    ? appearToClass
+    : enterToClass;
+
+  const beforeEnterHook = isAppear
+    ? (beforeAppear || beforeEnter)
+    : beforeEnter;
+  const enterHook = isAppear
+    ? (typeof appear === 'function' ? appear : enter)
+    : enter;
+  const afterEnterHook = isAppear
+    ? (afterAppear || afterEnter)
+    : afterEnter;
+  const enterCancelledHook = isAppear
+    ? (appearCancelled || enterCancelled)
+    : enterCancelled;
+
+  const explicitEnterDuration = toNumber(
+    isObject(duration)
+      ? duration.enter
+      : duration
+  );
+
+  if ("development" !== 'production' && explicitEnterDuration != null) {
+    checkDuration(explicitEnterDuration, 'enter', vnode);
+  }
+
+  const expectsCSS = css !== false && !isIE9;
+  const userWantsControl = getHookArgumentsLength(enterHook);
+
+  const cb = el._enterCb = once(() => {
+    if (expectsCSS) {
+      removeTransitionClass(el, toClass);
+      removeTransitionClass(el, activeClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, startClass);
+      }
+      enterCancelledHook && enterCancelledHook(el);
+    } else {
+      afterEnterHook && afterEnterHook(el);
+    }
+    el._enterCb = null;
+  });
+
+  if (!vnode.data.show) {
+    // remove pending leave element on enter by injecting an insert hook
+    mergeVNodeHook(vnode, 'insert', () => {
+      const parent = el.parentNode;
+      const pendingNode = parent && parent._pending && parent._pending[vnode.key];
+      if (pendingNode &&
+        pendingNode.tag === vnode.tag &&
+        pendingNode.elm._leaveCb
+      ) {
+        pendingNode.elm._leaveCb();
+      }
+      enterHook && enterHook(el, cb);
+    });
+  }
+
+  // start enter transition
+  beforeEnterHook && beforeEnterHook(el);
+  if (expectsCSS) {
+    addTransitionClass(el, startClass);
+    addTransitionClass(el, activeClass);
+    nextFrame(() => {
+      addTransitionClass(el, toClass);
+      removeTransitionClass(el, startClass);
+      if (!cb.cancelled && !userWantsControl) {
+        if (isValidDuration(explicitEnterDuration)) {
+          setTimeout(cb, explicitEnterDuration);
+        } else {
+          whenTransitionEnds(el, type, cb);
+        }
+      }
+    });
+  }
+
+  if (vnode.data.show) {
+    toggleDisplay && toggleDisplay();
+    enterHook && enterHook(el, cb);
+  }
+
+  if (!expectsCSS && !userWantsControl) {
+    cb();
+  }
+}
+
+function leave (vnode, rm) {
+  const el = vnode.elm;
+
+  // call enter callback now
+  if (isDef(el._enterCb)) {
+    el._enterCb.cancelled = true;
+    el._enterCb();
+  }
+
+  const data = resolveTransition(vnode.data.transition);
+  if (isUndef(data) || el.nodeType !== 1) {
+    return rm()
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._leaveCb)) {
+    return
+  }
+
+  const {
+    css,
+    type,
+    leaveClass,
+    leaveToClass,
+    leaveActiveClass,
+    beforeLeave,
+    leave,
+    afterLeave,
+    leaveCancelled,
+    delayLeave,
+    duration
+  } = data;
+
+  const expectsCSS = css !== false && !isIE9;
+  const userWantsControl = getHookArgumentsLength(leave);
+
+  const explicitLeaveDuration = toNumber(
+    isObject(duration)
+      ? duration.leave
+      : duration
+  );
+
+  if ("development" !== 'production' && isDef(explicitLeaveDuration)) {
+    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  }
+
+  const cb = el._leaveCb = once(() => {
+    if (el.parentNode && el.parentNode._pending) {
+      el.parentNode._pending[vnode.key] = null;
+    }
+    if (expectsCSS) {
+      removeTransitionClass(el, leaveToClass);
+      removeTransitionClass(el, leaveActiveClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveClass);
+      }
+      leaveCancelled && leaveCancelled(el);
+    } else {
+      rm();
+      afterLeave && afterLeave(el);
+    }
+    el._leaveCb = null;
+  });
+
+  if (delayLeave) {
+    delayLeave(performLeave);
+  } else {
+    performLeave();
+  }
+
+  function performLeave () {
+    // the delayed leave may have already been cancelled
+    if (cb.cancelled) {
+      return
+    }
+    // record leaving element
+    if (!vnode.data.show) {
+      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+    }
+    beforeLeave && beforeLeave(el);
+    if (expectsCSS) {
+      addTransitionClass(el, leaveClass);
+      addTransitionClass(el, leaveActiveClass);
+      nextFrame(() => {
+        addTransitionClass(el, leaveToClass);
+        removeTransitionClass(el, leaveClass);
+        if (!cb.cancelled && !userWantsControl) {
+          if (isValidDuration(explicitLeaveDuration)) {
+            setTimeout(cb, explicitLeaveDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
+        }
+      });
+    }
+    leave && leave(el, cb);
+    if (!expectsCSS && !userWantsControl) {
+      cb();
+    }
+  }
+}
+
+// only used in dev mode
+function checkDuration (val, name, vnode) {
+  if (typeof val !== 'number') {
+    warn(
+      `<transition> explicit ${name} duration is not a valid number - ` +
+      `got ${JSON.stringify(val)}.`,
+      vnode.context
+    );
+  } else if (isNaN(val)) {
+    warn(
+      `<transition> explicit ${name} duration is NaN - ` +
+      'the duration expression might be incorrect.',
+      vnode.context
+    );
+  }
+}
+
+function isValidDuration (val) {
+  return typeof val === 'number' && !isNaN(val)
+}
+
+/**
+ * Normalize a transition hook's argument length. The hook may be:
+ * - a merged hook (invoker) with the original in .fns
+ * - a wrapped component method (check ._length)
+ * - a plain function (.length)
+ */
+function getHookArgumentsLength (fn) {
+  if (isUndef(fn)) {
+    return false
+  }
+  const invokerFns = fn.fns;
+  if (isDef(invokerFns)) {
+    // invoker
+    return getHookArgumentsLength(
+      Array.isArray(invokerFns)
+        ? invokerFns[0]
+        : invokerFns
+    )
+  } else {
+    return (fn._length || fn.length) > 1
+  }
+}
+
+function _enter (_, vnode) {
+  if (vnode.data.show !== true) {
+    enter(vnode);
+  }
+}
+
+var transition = inBrowser ? {
+  create: _enter,
+  activate: _enter,
+  remove (vnode, rm) {
+    /* istanbul ignore else */
+    if (vnode.data.show !== true) {
+      leave(vnode, rm);
+    } else {
+      rm();
+    }
+  }
+} : {};
+
+var platformModules = [
+  attrs,
+  klass,
+  events,
+  domProps,
+  style,
+  transition
+];
+
+/*  */
+
+// the directive module should be applied last, after all
+// built-in modules have been applied.
+const modules = platformModules.concat(baseModules);
+
+const patch = createPatchFunction({ nodeOps, modules });
+
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', () => {
+    const el = document.activeElement;
+    if (el && el.vmodel) {
+      trigger(el, 'input');
+    }
+  });
+}
+
+const directive = {
+  inserted (el, binding, vnode, oldVnode) {
+    if (vnode.tag === 'select') {
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', () => {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
+      el._vOptions = [].map.call(el.options, getValue);
+    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+      el._vModifiers = binding.modifiers;
+      if (!binding.modifiers.lazy) {
+        // Safari < 10.2 & UIWebView doesn't fire compositionend when
+        // switching focus before confirming composition choice
+        // this also fixes the issue where some browsers e.g. iOS Chrome
+        // fires "change" instead of "input" on autocomplete.
+        el.addEventListener('change', onCompositionEnd);
+        if (!isAndroid) {
+          el.addEventListener('compositionstart', onCompositionStart);
+          el.addEventListener('compositionend', onCompositionEnd);
+        }
+        /* istanbul ignore if */
+        if (isIE9) {
+          el.vmodel = true;
+        }
+      }
+    }
+  },
+
+  componentUpdated (el, binding, vnode) {
+    if (vnode.tag === 'select') {
+      setSelected(el, binding, vnode.context);
+      // in case the options rendered by v-for have changed,
+      // it's possible that the value is out-of-sync with the rendered options.
+      // detect such cases and filter out values that no longer has a matching
+      // option in the DOM.
+      const prevOptions = el._vOptions;
+      const curOptions = el._vOptions = [].map.call(el.options, getValue);
+      if (curOptions.some((o, i) => !looseEqual(o, prevOptions[i]))) {
+        // trigger change event if
+        // no matching option found for at least one value
+        const needReset = el.multiple
+          ? binding.value.some(v => hasNoMatchingOption(v, curOptions))
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
+      }
+    }
+  }
+};
+
+function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(() => {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  const value = binding.value;
+  const isMultiple = el.multiple;
+  if (isMultiple && !Array.isArray(value)) {
+    "development" !== 'production' && warn(
+      `<select multiple v-model="${binding.expression}"> ` +
+      `expects an Array value for its binding, but got ${
+        Object.prototype.toString.call(value).slice(8, -1)
+      }`,
+      vm
+    );
+    return
+  }
+  let selected, option;
+  for (let i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i];
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1;
+      if (option.selected !== selected) {
+        option.selected = selected;
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i;
+        }
+        return
+      }
+    }
+  }
+  if (!isMultiple) {
+    el.selectedIndex = -1;
+  }
+}
+
+function hasNoMatchingOption (value, options) {
+  return options.every(o => !looseEqual(o, value))
+}
+
+function getValue (option) {
+  return '_value' in option
+    ? option._value
+    : option.value
+}
+
+function onCompositionStart (e) {
+  e.target.composing = true;
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) return
+  e.target.composing = false;
+  trigger(e.target, 'input');
+}
+
+function trigger (el, type) {
+  const e = document.createEvent('HTMLEvents');
+  e.initEvent(type, true, true);
+  el.dispatchEvent(e);
+}
+
+/*  */
+
+// recursively search for possible transition defined inside the component root
+function locateNode (vnode) {
+  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+    ? locateNode(vnode.componentInstance._vnode)
+    : vnode
+}
+
+var show = {
+  bind (el, { value }, vnode) {
+    vnode = locateNode(vnode);
+    const transition$$1 = vnode.data && vnode.data.transition;
+    const originalDisplay = el.__vOriginalDisplay =
+      el.style.display === 'none' ? '' : el.style.display;
+    if (value && transition$$1) {
+      vnode.data.show = true;
+      enter(vnode, () => {
+        el.style.display = originalDisplay;
+      });
+    } else {
+      el.style.display = value ? originalDisplay : 'none';
+    }
+  },
+
+  update (el, { value, oldValue }, vnode) {
+    /* istanbul ignore if */
+    if (value === oldValue) return
+    vnode = locateNode(vnode);
+    const transition$$1 = vnode.data && vnode.data.transition;
+    if (transition$$1) {
+      vnode.data.show = true;
+      if (value) {
+        enter(vnode, () => {
+          el.style.display = el.__vOriginalDisplay;
+        });
+      } else {
+        leave(vnode, () => {
+          el.style.display = 'none';
+        });
+      }
+    } else {
+      el.style.display = value ? el.__vOriginalDisplay : 'none';
+    }
+  },
+
+  unbind (
+    el,
+    binding,
+    vnode,
+    oldVnode,
+    isDestroy
+  ) {
+    if (!isDestroy) {
+      el.style.display = el.__vOriginalDisplay;
+    }
+  }
+};
+
+var platformDirectives = {
+  model: directive,
+  show
+};
+
+/*  */
+
+// Provides transition support for a single element/component.
+// supports transition mode (out-in / in-out)
+
+const transitionProps = {
+  name: String,
+  appear: Boolean,
+  css: Boolean,
+  mode: String,
+  type: String,
+  enterClass: String,
+  leaveClass: String,
+  enterToClass: String,
+  leaveToClass: String,
+  enterActiveClass: String,
+  leaveActiveClass: String,
+  appearClass: String,
+  appearActiveClass: String,
+  appearToClass: String,
+  duration: [Number, String, Object]
+};
+
+// in case the child is also an abstract component, e.g. <keep-alive>
+// we want to recursively retrieve the real component to be rendered
+function getRealChild (vnode) {
+  const compOptions = vnode && vnode.componentOptions;
+  if (compOptions && compOptions.Ctor.options.abstract) {
+    return getRealChild(getFirstComponentChild(compOptions.children))
+  } else {
+    return vnode
+  }
+}
+
+function extractTransitionData (comp) {
+  const data = {};
+  const options = comp.$options;
+  // props
+  for (const key in options.propsData) {
+    data[key] = comp[key];
+  }
+  // events.
+  // extract listeners and pass them directly to the transition methods
+  const listeners = options._parentListeners;
+  for (const key in listeners) {
+    data[camelize(key)] = listeners[key];
+  }
+  return data
+}
+
+function placeholder (h, rawChild) {
+  if (/\d-keep-alive$/.test(rawChild.tag)) {
+    return h('keep-alive', {
+      props: rawChild.componentOptions.propsData
+    })
+  }
+}
+
+function hasParentTransition (vnode) {
+  while ((vnode = vnode.parent)) {
+    if (vnode.data.transition) {
+      return true
+    }
+  }
+}
+
+function isSameChild (child, oldChild) {
+  return oldChild.key === child.key && oldChild.tag === child.tag
+}
+
+var Transition = {
+  name: 'transition',
+  props: transitionProps,
+  abstract: true,
+
+  render (h) {
+    let children = this.$slots.default;
+    if (!children) {
+      return
+    }
+
+    // filter out text nodes (possible whitespaces)
+    children = children.filter((c) => c.tag || isAsyncPlaceholder(c));
+    /* istanbul ignore if */
+    if (!children.length) {
+      return
+    }
+
+    // warn multiple elements
+    if ("development" !== 'production' && children.length > 1) {
+      warn(
+        '<transition> can only be used on a single element. Use ' +
+        '<transition-group> for lists.',
+        this.$parent
+      );
+    }
+
+    const mode = this.mode;
+
+    // warn invalid mode
+    if ("development" !== 'production' &&
+      mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
+      warn(
+        'invalid <transition> mode: ' + mode,
+        this.$parent
+      );
+    }
+
+    const rawChild = children[0];
+
+    // if this is a component root node and the component's
+    // parent container node also has transition, skip.
+    if (hasParentTransition(this.$vnode)) {
+      return rawChild
+    }
+
+    // apply transition data to child
+    // use getRealChild() to ignore abstract components e.g. keep-alive
+    const child = getRealChild(rawChild);
+    /* istanbul ignore if */
+    if (!child) {
+      return rawChild
+    }
+
+    if (this._leaving) {
+      return placeholder(h, rawChild)
+    }
+
+    // ensure a key that is unique to the vnode type and to this transition
+    // component instance. This key will be used to remove pending leaving nodes
+    // during entering.
+    const id = `__transition-${this._uid}-`;
+    child.key = child.key == null
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
+      : isPrimitive(child.key)
+        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+        : child.key;
+
+    const data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+    const oldRawChild = this._vnode;
+    const oldChild = getRealChild(oldRawChild);
+
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(d => d.name === 'show')) {
+      child.data.show = true;
+    }
+
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+    ) {
+      // replace old child transition data with fresh one
+      // important for dynamic transitions!
+      const oldData = oldChild.data.transition = extend({}, data);
+      // handle transition mode
+      if (mode === 'out-in') {
+        // return placeholder node and queue update when leave finishes
+        this._leaving = true;
+        mergeVNodeHook(oldData, 'afterLeave', () => {
+          this._leaving = false;
+          this.$forceUpdate();
+        });
+        return placeholder(h, rawChild)
+      } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
+        let delayedLeave;
+        const performLeave = () => { delayedLeave(); };
+        mergeVNodeHook(data, 'afterEnter', performLeave);
+        mergeVNodeHook(data, 'enterCancelled', performLeave);
+        mergeVNodeHook(oldData, 'delayLeave', leave => { delayedLeave = leave; });
+      }
+    }
+
+    return rawChild
+  }
+};
+
+/*  */
+
+// Provides transition support for list items.
+// supports move transitions using the FLIP technique.
+
+// Because the vdom's children update algorithm is "unstable" - i.e.
+// it doesn't guarantee the relative positioning of removed elements,
+// we force transition-group to update its children into two passes:
+// in the first pass, we remove all nodes that need to be removed,
+// triggering their leaving transition; in the second pass, we insert/move
+// into the final desired state. This way in the second pass removed
+// nodes will remain where they should be.
+
+const props = extend({
+  tag: String,
+  moveClass: String
+}, transitionProps);
+
+delete props.mode;
+
+var TransitionGroup = {
+  props,
+
+  render (h) {
+    const tag = this.tag || this.$vnode.data.tag || 'span';
+    const map = Object.create(null);
+    const prevChildren = this.prevChildren = this.children;
+    const rawChildren = this.$slots.default || [];
+    const children = this.children = [];
+    const transitionData = extractTransitionData(this);
+
+    for (let i = 0; i < rawChildren.length; i++) {
+      const c = rawChildren[i];
+      if (c.tag) {
+        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+          children.push(c);
+          map[c.key] = c
+          ;(c.data || (c.data = {})).transition = transitionData;
+        } else {
+          const opts = c.componentOptions;
+          const name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+          warn(`<transition-group> children must be keyed: <${name}>`);
+        }
+      }
+    }
+
+    if (prevChildren) {
+      const kept = [];
+      const removed = [];
+      for (let i = 0; i < prevChildren.length; i++) {
+        const c = prevChildren[i];
+        c.data.transition = transitionData;
+        c.data.pos = c.elm.getBoundingClientRect();
+        if (map[c.key]) {
+          kept.push(c);
+        } else {
+          removed.push(c);
+        }
+      }
+      this.kept = h(tag, null, kept);
+      this.removed = removed;
+    }
+
+    return h(tag, null, children)
+  },
+
+  beforeUpdate () {
+    // force removing pass
+    this.__patch__(
+      this._vnode,
+      this.kept,
+      false, // hydrating
+      true // removeOnly (!important, avoids unnecessary moves)
+    );
+    this._vnode = this.kept;
+  },
+
+  updated () {
+    const children = this.prevChildren;
+    const moveClass = this.moveClass || ((this.name || 'v') + '-move');
+    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+      return
+    }
+
+    // we divide the work into three loops to avoid mixing DOM reads and writes
+    // in each iteration - which helps prevent layout thrashing.
+    children.forEach(callPendingCbs);
+    children.forEach(recordPosition);
+    children.forEach(applyTranslation);
+
+    // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
+    children.forEach((c) => {
+      if (c.data.moved) {
+        var el = c.elm;
+        var s = el.style;
+        addTransitionClass(el, moveClass);
+        s.transform = s.WebkitTransform = s.transitionDuration = '';
+        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (!e || /transform$/.test(e.propertyName)) {
+            el.removeEventListener(transitionEndEvent, cb);
+            el._moveCb = null;
+            removeTransitionClass(el, moveClass);
+          }
+        });
+      }
+    });
+  },
+
+  methods: {
+    hasMove (el, moveClass) {
+      /* istanbul ignore if */
+      if (!hasTransition) {
+        return false
+      }
+      /* istanbul ignore if */
+      if (this._hasMove) {
+        return this._hasMove
+      }
+      // Detect whether an element with the move class applied has
+      // CSS transitions. Since the element may be inside an entering
+      // transition at this very moment, we make a clone of it and remove
+      // all other transition classes applied to ensure only the move class
+      // is applied.
+      const clone = el.cloneNode();
+      if (el._transitionClasses) {
+        el._transitionClasses.forEach((cls) => { removeClass(clone, cls); });
+      }
+      addClass(clone, moveClass);
+      clone.style.display = 'none';
+      this.$el.appendChild(clone);
+      const info = getTransitionInfo(clone);
+      this.$el.removeChild(clone);
+      return (this._hasMove = info.hasTransform)
+    }
+  }
+};
+
+function callPendingCbs (c) {
+  /* istanbul ignore if */
+  if (c.elm._moveCb) {
+    c.elm._moveCb();
+  }
+  /* istanbul ignore if */
+  if (c.elm._enterCb) {
+    c.elm._enterCb();
+  }
+}
+
+function recordPosition (c) {
+  c.data.newPos = c.elm.getBoundingClientRect();
+}
+
+function applyTranslation (c) {
+  const oldPos = c.data.pos;
+  const newPos = c.data.newPos;
+  const dx = oldPos.left - newPos.left;
+  const dy = oldPos.top - newPos.top;
+  if (dx || dy) {
+    c.data.moved = true;
+    const s = c.elm.style;
+    s.transform = s.WebkitTransform = `translate(${dx}px,${dy}px)`;
+    s.transitionDuration = '0s';
+  }
+}
+
+var platformComponents = {
+  Transition,
+  TransitionGroup
+};
+
+/*  */
+
+// install platform specific utils
+Vue$3.config.mustUseProp = mustUseProp;
+Vue$3.config.isReservedTag = isReservedTag;
+Vue$3.config.isReservedAttr = isReservedAttr;
+Vue$3.config.getTagNamespace = getTagNamespace;
+Vue$3.config.isUnknownElement = isUnknownElement;
+
+// install platform runtime directives & components
+extend(Vue$3.options.directives, platformDirectives);
+extend(Vue$3.options.components, platformComponents);
+
+// install platform patch function
+Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
+
+// public mount method
+Vue$3.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && inBrowser ? query(el) : undefined;
+  return mountComponent(this, el, hydrating)
+};
+
+// devtools global hook
+/* istanbul ignore next */
+Vue$3.nextTick(() => {
+  if (config.devtools) {
+    if (devtools) {
+      devtools.emit('init', Vue$3);
+    } else if ("development" !== 'production' && isChrome) {
+      console[console.info ? 'info' : 'log'](
+        'Download the Vue Devtools extension for a better development experience:\n' +
+        'https://github.com/vuejs/vue-devtools'
+      );
+    }
+  }
+  if ("development" !== 'production' &&
+    config.productionTip !== false &&
+    inBrowser && typeof console !== 'undefined'
+  ) {
+    console[console.info ? 'info' : 'log'](
+      `You are running Vue in development mode.\n` +
+      `Make sure to turn on production mode when deploying for production.\n` +
+      `See more tips at https://vuejs.org/guide/deployment.html`
+    );
+  }
+}, 0);
+
+/*  */
+
+const defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+const regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+const buildRegex = cached(delimiters => {
+  const open = delimiters[0].replace(regexEscapeRE, '\\$&');
+  const close = delimiters[1].replace(regexEscapeRE, '\\$&');
+  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+});
+
+function parseText (
+  text,
+  delimiters
+) {
+  const tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+  if (!tagRE.test(text)) {
+    return
+  }
+  const tokens = [];
+  let lastIndex = tagRE.lastIndex = 0;
+  let match, index;
+  while ((match = tagRE.exec(text))) {
+    index = match.index;
+    // push text token
+    if (index > lastIndex) {
+      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+    }
+    // tag token
+    const exp = parseFilters(match[1].trim());
+    tokens.push(`_s(${exp})`);
+    lastIndex = index + match[0].length;
+  }
+  if (lastIndex < text.length) {
+    tokens.push(JSON.stringify(text.slice(lastIndex)));
+  }
+  return tokens.join('+')
+}
+
+/*  */
+
+function transformNode (el, options) {
+  const warn = options.warn || baseWarn;
+  const staticClass = getAndRemoveAttr(el, 'class');
+  if ("development" !== 'production' && staticClass) {
+    const expression = parseText(staticClass, options.delimiters);
+    if (expression) {
+      warn(
+        `class="${staticClass}": ` +
+        'Interpolation inside attributes has been removed. ' +
+        'Use v-bind or the colon shorthand instead. For example, ' +
+        'instead of <div class="{{ val }}">, use <div :class="val">.'
+      );
+    }
+  }
+  if (staticClass) {
+    el.staticClass = JSON.stringify(staticClass);
+  }
+  const classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+  if (classBinding) {
+    el.classBinding = classBinding;
+  }
+}
+
+function genData (el) {
+  let data = '';
+  if (el.staticClass) {
+    data += `staticClass:${el.staticClass},`;
+  }
+  if (el.classBinding) {
+    data += `class:${el.classBinding},`;
+  }
+  return data
+}
+
+var klass$1 = {
+  staticKeys: ['staticClass'],
+  transformNode,
+  genData
+};
+
+/*  */
+
+function transformNode$1 (el, options) {
+  const warn = options.warn || baseWarn;
+  const staticStyle = getAndRemoveAttr(el, 'style');
+  if (staticStyle) {
+    /* istanbul ignore if */
+    {
+      const expression = parseText(staticStyle, options.delimiters);
+      if (expression) {
+        warn(
+          `style="${staticStyle}": ` +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div style="{{ val }}">, use <div :style="val">.'
+        );
+      }
+    }
+    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+  }
+
+  const styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+  if (styleBinding) {
+    el.styleBinding = styleBinding;
+  }
+}
+
+function genData$1 (el) {
+  let data = '';
+  if (el.staticStyle) {
+    data += `staticStyle:${el.staticStyle},`;
+  }
+  if (el.styleBinding) {
+    data += `style:(${el.styleBinding}),`;
+  }
+  return data
+}
+
+var style$1 = {
+  staticKeys: ['staticStyle'],
+  transformNode: transformNode$1,
+  genData: genData$1
+};
+
+/*  */
+
+let decoder;
+
+var he = {
+  decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
+  }
+};
+
+/*  */
+
+const isUnaryTag = makeMap(
+  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+  'link,meta,param,source,track,wbr'
+);
+
+// Elements that you can, intentionally, leave open
+// (and which close themselves)
+const canBeLeftOpenTag = makeMap(
+  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+);
+
+// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+const isNonPhrasingTag = makeMap(
+  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+  'title,tr,track'
+);
+
+/**
+ * Not type-checking this file because it's mostly vendor code.
+ */
+
+/*!
+ * HTML Parser By John Resig (ejohn.org)
+ * Modified by Juriy "kangax" Zaytsev
+ * Original code by Erik Arvidsson, Mozilla Public License
+ * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
+ */
+
+// Regular Expressions for parsing tags and attributes
+const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+// but for Vue templates we can enforce a simple charset
+const ncname = '[a-zA-Z_][\\w\\-\\.]*';
+const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
+const startTagOpen = new RegExp(`^<${qnameCapture}`);
+const startTagClose = /^\s*(\/?)>/;
+const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`);
+const doctype = /^<!DOCTYPE [^>]+>/i;
+const comment = /^<!--/;
+const conditionalComment = /^<!\[/;
+
+let IS_REGEX_CAPTURING_BROKEN = false;
+'x'.replace(/x(.)?/g, function (m, g) {
+  IS_REGEX_CAPTURING_BROKEN = g === '';
+});
+
+// Special Elements (can contain anything)
+const isPlainTextElement = makeMap('script,style,textarea', true);
+const reCache = {};
+
+const decodingMap = {
+  '&lt;': '<',
+  '&gt;': '>',
+  '&quot;': '"',
+  '&amp;': '&',
+  '&#10;': '\n',
+  '&#9;': '\t'
+};
+const encodedAttr = /&(?:lt|gt|quot|amp);/g;
+const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+// #5992
+const isIgnoreNewlineTag = makeMap('pre,textarea', true);
+const shouldIgnoreFirstNewline = (tag, html) => tag && isIgnoreNewlineTag(tag) && html[0] === '\n';
+
+function decodeAttr (value, shouldDecodeNewlines) {
+  const re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+  return value.replace(re, match => decodingMap[match])
+}
+
+function parseHTML (html, options) {
+  const stack = [];
+  const expectHTML = options.expectHTML;
+  const isUnaryTag$$1 = options.isUnaryTag || no;
+  const canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+  let index = 0;
+  let last, lastTag;
+  while (html) {
+    last = html;
+    // Make sure we're not in a plaintext content element like script/style
+    if (!lastTag || !isPlainTextElement(lastTag)) {
+      let textEnd = html.indexOf('<');
+      if (textEnd === 0) {
+        // Comment:
+        if (comment.test(html)) {
+          const commentEnd = html.indexOf('-->');
+
+          if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd));
+            }
+            advance(commentEnd + 3);
+            continue
+          }
+        }
+
+        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+        if (conditionalComment.test(html)) {
+          const conditionalEnd = html.indexOf(']>');
+
+          if (conditionalEnd >= 0) {
+            advance(conditionalEnd + 2);
+            continue
+          }
+        }
+
+        // Doctype:
+        const doctypeMatch = html.match(doctype);
+        if (doctypeMatch) {
+          advance(doctypeMatch[0].length);
+          continue
+        }
+
+        // End tag:
+        const endTagMatch = html.match(endTag);
+        if (endTagMatch) {
+          const curIndex = index;
+          advance(endTagMatch[0].length);
+          parseEndTag(endTagMatch[1], curIndex, index);
+          continue
+        }
+
+        // Start tag:
+        const startTagMatch = parseStartTag();
+        if (startTagMatch) {
+          handleStartTag(startTagMatch);
+          if (shouldIgnoreFirstNewline(lastTag, html)) {
+            advance(1);
+          }
+          continue
+        }
+      }
+
+      let text, rest, next;
+      if (textEnd >= 0) {
+        rest = html.slice(textEnd);
+        while (
+          !endTag.test(rest) &&
+          !startTagOpen.test(rest) &&
+          !comment.test(rest) &&
+          !conditionalComment.test(rest)
+        ) {
+          // < in plain text, be forgiving and treat it as text
+          next = rest.indexOf('<', 1);
+          if (next < 0) break
+          textEnd += next;
+          rest = html.slice(textEnd);
+        }
+        text = html.substring(0, textEnd);
+        advance(textEnd);
+      }
+
+      if (textEnd < 0) {
+        text = html;
+        html = '';
+      }
+
+      if (options.chars && text) {
+        options.chars(text);
+      }
+    } else {
+      let endTagLength = 0;
+      const stackedTag = lastTag.toLowerCase();
+      const reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+      const rest = html.replace(reStackedTag, function (all, text, endTag) {
+        endTagLength = endTag.length;
+        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+          text = text
+            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+        }
+        if (shouldIgnoreFirstNewline(stackedTag, text)) {
+          text = text.slice(1);
+        }
+        if (options.chars) {
+          options.chars(text);
+        }
+        return ''
+      });
+      index += html.length - rest.length;
+      html = rest;
+      parseEndTag(stackedTag, index - endTagLength, index);
+    }
+
+    if (html === last) {
+      options.chars && options.chars(html);
+      if ("development" !== 'production' && !stack.length && options.warn) {
+        options.warn(`Mal-formatted tag at end of template: "${html}"`);
+      }
+      break
+    }
+  }
+
+  // Clean up any remaining tags
+  parseEndTag();
+
+  function advance (n) {
+    index += n;
+    html = html.substring(n);
+  }
+
+  function parseStartTag () {
+    const start = html.match(startTagOpen);
+    if (start) {
+      const match = {
+        tagName: start[1],
+        attrs: [],
+        start: index
+      };
+      advance(start[0].length);
+      let end, attr;
+      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        advance(attr[0].length);
+        match.attrs.push(attr);
+      }
+      if (end) {
+        match.unarySlash = end[1];
+        advance(end[0].length);
+        match.end = index;
+        return match
+      }
+    }
+  }
+
+  function handleStartTag (match) {
+    const tagName = match.tagName;
+    const unarySlash = match.unarySlash;
+
+    if (expectHTML) {
+      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+        parseEndTag(lastTag);
+      }
+      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+        parseEndTag(tagName);
+      }
+    }
+
+    const unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+    const l = match.attrs.length;
+    const attrs = new Array(l);
+    for (let i = 0; i < l; i++) {
+      const args = match.attrs[i];
+      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
+      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
+        if (args[3] === '') { delete args[3]; }
+        if (args[4] === '') { delete args[4]; }
+        if (args[5] === '') { delete args[5]; }
+      }
+      const value = args[3] || args[4] || args[5] || '';
+      const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
+      attrs[i] = {
+        name: args[1],
+        value: decodeAttr(value, shouldDecodeNewlines)
+      };
+    }
+
+    if (!unary) {
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+      lastTag = tagName;
+    }
+
+    if (options.start) {
+      options.start(tagName, attrs, unary, match.start, match.end);
+    }
+  }
+
+  function parseEndTag (tagName, start, end) {
+    let pos, lowerCasedTagName;
+    if (start == null) start = index;
+    if (end == null) end = index;
+
+    if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
+    }
+
+    // Find the closest opened tag of the same type
+    if (tagName) {
+      for (pos = stack.length - 1; pos >= 0; pos--) {
+        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+          break
+        }
+      }
+    } else {
+      // If no tag name is provided, clean shop
+      pos = 0;
+    }
+
+    if (pos >= 0) {
+      // Close all the open elements, up the stack
+      for (let i = stack.length - 1; i >= pos; i--) {
+        if ("development" !== 'production' &&
+          (i > pos || !tagName) &&
+          options.warn
+        ) {
+          options.warn(
+            `tag <${stack[i].tag}> has no matching end tag.`
+          );
+        }
+        if (options.end) {
+          options.end(stack[i].tag, start, end);
+        }
+      }
+
+      // Remove the open elements from the stack
+      stack.length = pos;
+      lastTag = pos && stack[pos - 1].tag;
+    } else if (lowerCasedTagName === 'br') {
+      if (options.start) {
+        options.start(tagName, [], true, start, end);
+      }
+    } else if (lowerCasedTagName === 'p') {
+      if (options.start) {
+        options.start(tagName, [], false, start, end);
+      }
+      if (options.end) {
+        options.end(tagName, start, end);
+      }
+    }
+  }
+}
+
+/*  */
+
+const onRE = /^@|^v-on:/;
+const dirRE = /^v-|^@|^:/;
+const forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+const forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+
+const argRE = /:(.*)$/;
+const bindRE = /^:|^v-bind:/;
+const modifierRE = /\.[^.]+/g;
+
+const decodeHTMLCached = cached(he.decode);
+
+// configurable state
+let warn$2;
+let delimiters;
+let transforms;
+let preTransforms;
+let postTransforms;
+let platformIsPreTag;
+let platformMustUseProp;
+let platformGetTagNamespace;
+
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent,
+    children: []
+  }
+}
+
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+  template,
+  options
+) {
+  warn$2 = options.warn || baseWarn;
+
+  platformIsPreTag = options.isPreTag || no;
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
+
+  transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+  delimiters = options.delimiters;
+
+  const stack = [];
+  const preserveWhitespace = options.preserveWhitespace !== false;
+  let root;
+  let currentParent;
+  let inVPre = false;
+  let inPre = false;
+  let warned = false;
+
+  function warnOnce (msg) {
+    if (!warned) {
+      warned = true;
+      warn$2(msg);
+    }
+  }
+
+  function endPre (element) {
+    // check pre state
+    if (element.pre) {
+      inVPre = false;
+    }
+    if (platformIsPreTag(element.tag)) {
+      inPre = false;
+    }
+  }
+
+  parseHTML(template, {
+    warn: warn$2,
+    expectHTML: options.expectHTML,
+    isUnaryTag: options.isUnaryTag,
+    canBeLeftOpenTag: options.canBeLeftOpenTag,
+    shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+    shouldKeepComment: options.comments,
+    start (tag, attrs, unary) {
+      // check namespace.
+      // inherit parent ns if there is one
+      const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+      // handle IE svg bug
+      /* istanbul ignore if */
+      if (isIE && ns === 'svg') {
+        attrs = guardIESVGBug(attrs);
+      }
+
+      let element = createASTElement(tag, attrs, currentParent);
+      if (ns) {
+        element.ns = ns;
+      }
+
+      if (isForbiddenTag(element) && !isServerRendering()) {
+        element.forbidden = true;
+        "development" !== 'production' && warn$2(
+          'Templates should only be responsible for mapping the state to the ' +
+          'UI. Avoid placing tags with side-effects in your templates, such as ' +
+          `<${tag}>` + ', as they will not be parsed.'
+        );
+      }
+
+      // apply pre-transforms
+      for (let i = 0; i < preTransforms.length; i++) {
+        element = preTransforms[i](element, options) || element;
+      }
+
+      if (!inVPre) {
+        processPre(element);
+        if (element.pre) {
+          inVPre = true;
+        }
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = true;
+      }
+      if (inVPre) {
+        processRawAttrs(element);
+      } else if (!element.processed) {
+        // structural directives
+        processFor(element);
+        processIf(element);
+        processOnce(element);
+        // element-scope stuff
+        processElement(element, options);
+      }
+
+      function checkRootConstraints (el) {
+        {
+          if (el.tag === 'slot' || el.tag === 'template') {
+            warnOnce(
+              `Cannot use <${el.tag}> as component root element because it may ` +
+              'contain multiple nodes.'
+            );
+          }
+          if (el.attrsMap.hasOwnProperty('v-for')) {
+            warnOnce(
+              'Cannot use v-for on stateful component root element because ' +
+              'it renders multiple elements.'
+            );
+          }
+        }
+      }
+
+      // tree management
+      if (!root) {
+        root = element;
+        checkRootConstraints(root);
+      } else if (!stack.length) {
+        // allow root elements with v-if, v-else-if and v-else
+        if (root.if && (element.elseif || element.else)) {
+          checkRootConstraints(element);
+          addIfCondition(root, {
+            exp: element.elseif,
+            block: element
+          });
+        } else {
+          warnOnce(
+            `Component template should contain exactly one root element. ` +
+            `If you are using v-if on multiple elements, ` +
+            `use v-else-if to chain them instead.`
+          );
+        }
+      }
+      if (currentParent && !element.forbidden) {
+        if (element.elseif || element.else) {
+          processIfConditions(element, currentParent);
+        } else if (element.slotScope) { // scoped slot
+          currentParent.plain = false;
+          const name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        } else {
+          currentParent.children.push(element);
+          element.parent = currentParent;
+        }
+      }
+      if (!unary) {
+        currentParent = element;
+        stack.push(element);
+      } else {
+        endPre(element);
+      }
+      // apply post-transforms
+      for (let i = 0; i < postTransforms.length; i++) {
+        postTransforms[i](element, options);
+      }
+    },
+
+    end () {
+      // remove trailing whitespace
+      const element = stack[stack.length - 1];
+      const lastNode = element.children[element.children.length - 1];
+      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+        element.children.pop();
+      }
+      // pop stack
+      stack.length -= 1;
+      currentParent = stack[stack.length - 1];
+      endPre(element);
+    },
+
+    chars (text) {
+      if (!currentParent) {
+        {
+          if (text === template) {
+            warnOnce(
+              'Component template requires a root element, rather than just text.'
+            );
+          } else if ((text = text.trim())) {
+            warnOnce(
+              `text "${text}" outside root element will be ignored.`
+            );
+          }
+        }
+        return
+      }
+      // IE textarea placeholder bug
+      /* istanbul ignore if */
+      if (isIE &&
+        currentParent.tag === 'textarea' &&
+        currentParent.attrsMap.placeholder === text
+      ) {
+        return
+      }
+      const children = currentParent.children;
+      text = inPre || text.trim()
+        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+        // only preserve whitespace if its not right after a starting tag
+        : preserveWhitespace && children.length ? ' ' : '';
+      if (text) {
+        let expression;
+        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+          children.push({
+            type: 2,
+            expression,
+            text
+          });
+        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+          children.push({
+            type: 3,
+            text
+          });
+        }
+      }
+    },
+    comment (text) {
+      currentParent.children.push({
+        type: 3,
+        text,
+        isComment: true
+      });
+    }
+  });
+  return root
+}
+
+function processPre (el) {
+  if (getAndRemoveAttr(el, 'v-pre') != null) {
+    el.pre = true;
+  }
+}
+
+function processRawAttrs (el) {
+  const l = el.attrsList.length;
+  if (l) {
+    const attrs = el.attrs = new Array(l);
+    for (let i = 0; i < l; i++) {
+      attrs[i] = {
+        name: el.attrsList[i].name,
+        value: JSON.stringify(el.attrsList[i].value)
+      };
+    }
+  } else if (!el.pre) {
+    // non root node in pre blocks with no attributes
+    el.plain = true;
+  }
+}
+
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (let i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
+function processKey (el) {
+  const exp = getBindingAttr(el, 'key');
+  if (exp) {
+    if ("development" !== 'production' && el.tag === 'template') {
+      warn$2(`<template> cannot be keyed. Place the key on real elements instead.`);
+    }
+    el.key = exp;
+  }
+}
+
+function processRef (el) {
+  const ref = getBindingAttr(el, 'ref');
+  if (ref) {
+    el.ref = ref;
+    el.refInFor = checkInFor(el);
+  }
+}
+
+function processFor (el) {
+  let exp;
+  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+    const inMatch = exp.match(forAliasRE);
+    if (!inMatch) {
+      "development" !== 'production' && warn$2(
+        `Invalid v-for expression: ${exp}`
+      );
+      return
+    }
+    el.for = inMatch[2].trim();
+    const alias = inMatch[1].trim();
+    const iteratorMatch = alias.match(forIteratorRE);
+    if (iteratorMatch) {
+      el.alias = iteratorMatch[1].trim();
+      el.iterator1 = iteratorMatch[2].trim();
+      if (iteratorMatch[3]) {
+        el.iterator2 = iteratorMatch[3].trim();
+      }
+    } else {
+      el.alias = alias;
+    }
+  }
+}
+
+function processIf (el) {
+  const exp = getAndRemoveAttr(el, 'v-if');
+  if (exp) {
+    el.if = exp;
+    addIfCondition(el, {
+      exp: exp,
+      block: el
+    });
+  } else {
+    if (getAndRemoveAttr(el, 'v-else') != null) {
+      el.else = true;
+    }
+    const elseif = getAndRemoveAttr(el, 'v-else-if');
+    if (elseif) {
+      el.elseif = elseif;
+    }
+  }
+}
+
+function processIfConditions (el, parent) {
+  const prev = findPrevElement(parent.children);
+  if (prev && prev.if) {
+    addIfCondition(prev, {
+      exp: el.elseif,
+      block: el
+    });
+  } else {
+    warn$2(
+      `v-${el.elseif ? ('else-if="' + el.elseif + '"') : 'else'} ` +
+      `used on element <${el.tag}> without corresponding v-if.`
+    );
+  }
+}
+
+function findPrevElement (children) {
+  let i = children.length;
+  while (i--) {
+    if (children[i].type === 1) {
+      return children[i]
+    } else {
+      if ("development" !== 'production' && children[i].text !== ' ') {
+        warn$2(
+          `text "${children[i].text.trim()}" between v-if and v-else(-if) ` +
+          `will be ignored.`
+        );
+      }
+      children.pop();
+    }
+  }
+}
+
+function addIfCondition (el, condition) {
+  if (!el.ifConditions) {
+    el.ifConditions = [];
+  }
+  el.ifConditions.push(condition);
+}
+
+function processOnce (el) {
+  const once$$1 = getAndRemoveAttr(el, 'v-once');
+  if (once$$1 != null) {
+    el.once = true;
+  }
+}
+
+function processSlot (el) {
+  if (el.tag === 'slot') {
+    el.slotName = getBindingAttr(el, 'name');
+    if ("development" !== 'production' && el.key) {
+      warn$2(
+        `\`key\` does not work on <slot> because slots are abstract outlets ` +
+        `and can possibly expand into multiple elements. ` +
+        `Use the key on a wrapping element instead.`
+      );
+    }
+  } else {
+    let slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if ("development" !== 'production' && slotScope) {
+        warn$2(
+          `the "scope" attribute for scoped slots have been deprecated and ` +
+          `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
+          `can also be used on plain elements in addition to <template> to ` +
+          `denote scoped slots.`,
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if ("development" !== 'production' && el.attrsMap['v-for']) {
+        warn$2(
+          `Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
+          `(v-for takes higher priority). Use a wrapper <template> for the ` +
+          `scoped slot to make it clearer.`,
+          true
+        );
+      }
+      el.slotScope = slotScope;
+    }
+    const slotTarget = getBindingAttr(el, 'slot');
+    if (slotTarget) {
+      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      // only for non-scoped slots.
+      if (el.tag !== 'template' && !el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
+    }
+  }
+}
+
+function processComponent (el) {
+  let binding;
+  if ((binding = getBindingAttr(el, 'is'))) {
+    el.component = binding;
+  }
+  if (getAndRemoveAttr(el, 'inline-template') != null) {
+    el.inlineTemplate = true;
+  }
+}
+
+function processAttrs (el) {
+  const list = el.attrsList;
+  let i, l, name, rawName, value, modifiers, isProp;
+  for (i = 0, l = list.length; i < l; i++) {
+    name = rawName = list[i].name;
+    value = list[i].value;
+    if (dirRE.test(name)) {
+      // mark element as dynamic
+      el.hasBindings = true;
+      // modifiers
+      modifiers = parseModifiers(name);
+      if (modifiers) {
+        name = name.replace(modifierRE, '');
+      }
+      if (bindRE.test(name)) { // v-bind
+        name = name.replace(bindRE, '');
+        value = parseFilters(value);
+        isProp = false;
+        if (modifiers) {
+          if (modifiers.prop) {
+            isProp = true;
+            name = camelize(name);
+            if (name === 'innerHtml') name = 'innerHTML';
+          }
+          if (modifiers.camel) {
+            name = camelize(name);
+          }
+          if (modifiers.sync) {
+            addHandler(
+              el,
+              `update:${camelize(name)}`,
+              genAssignmentCode(value, `$event`)
+            );
+          }
+        }
+        if (isProp || (
+          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+        )) {
+          addProp(el, name, value);
+        } else {
+          addAttr(el, name, value);
+        }
+      } else if (onRE.test(name)) { // v-on
+        name = name.replace(onRE, '');
+        addHandler(el, name, value, modifiers, false, warn$2);
+      } else { // normal directives
+        name = name.replace(dirRE, '');
+        // parse arg
+        const argMatch = name.match(argRE);
+        const arg = argMatch && argMatch[1];
+        if (arg) {
+          name = name.slice(0, -(arg.length + 1));
+        }
+        addDirective(el, name, rawName, value, arg, modifiers);
+        if ("development" !== 'production' && name === 'model') {
+          checkForAliasModel(el, value);
+        }
+      }
+    } else {
+      // literal attribute
+      {
+        const expression = parseText(value, delimiters);
+        if (expression) {
+          warn$2(
+            `${name}="${value}": ` +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div id="{{ val }}">, use <div :id="val">.'
+          );
+        }
+      }
+      addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
+    }
+  }
+}
+
+function checkInFor (el) {
+  let parent = el;
+  while (parent) {
+    if (parent.for !== undefined) {
+      return true
+    }
+    parent = parent.parent;
+  }
+  return false
+}
+
+function parseModifiers (name) {
+  const match = name.match(modifierRE);
+  if (match) {
+    const ret = {};
+    match.forEach(m => { ret[m.slice(1)] = true; });
+    return ret
+  }
+}
+
+function makeAttrsMap (attrs) {
+  const map = {};
+  for (let i = 0, l = attrs.length; i < l; i++) {
+    if (
+      "development" !== 'production' &&
+      map[attrs[i].name] && !isIE && !isEdge
+    ) {
+      warn$2('duplicate attribute: ' + attrs[i].name);
+    }
+    map[attrs[i].name] = attrs[i].value;
+  }
+  return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+  return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+  return (
+    el.tag === 'style' ||
+    (el.tag === 'script' && (
+      !el.attrsMap.type ||
+      el.attrsMap.type === 'text/javascript'
+    ))
+  )
+}
+
+const ieNSBug = /^xmlns:NS\d+/;
+const ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+  const res = [];
+  for (let i = 0; i < attrs.length; i++) {
+    const attr = attrs[i];
+    if (!ieNSBug.test(attr.name)) {
+      attr.name = attr.name.replace(ieNSPrefix, '');
+      res.push(attr);
+    }
+  }
+  return res
+}
+
+function checkForAliasModel (el, value) {
+  let _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$2(
+        `<${el.tag} v-model="${value}">: ` +
+        `You are binding v-model directly to a v-for iteration alias. ` +
+        `This will not be able to modify the v-for source array because ` +
+        `writing to the alias is like modifying a function local variable. ` +
+        `Consider using an array of objects and use v-model on an object property instead.`
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+/**
+ * Expand input[v-model] with dyanmic type bindings into v-if-else chains
+ * Turn this:
+ *   <input v-model="data[type]" :type="type">
+ * into this:
+ *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
+ *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
+ *   <input v-else :type="type" v-model="data[type]">
+ */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    const map = el.attrsMap;
+    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
+      const typeBinding = getBindingAttr(el, 'type');
+      const ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``;
+      const hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      const elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+      // 1. checkbox
+      const branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = `(${typeBinding})==='checkbox'` + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      const branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: `(${typeBinding})==='radio'` + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      const branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name, value });
+}
+
+var model$2 = {
+  preTransformNode
+};
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$2
+];
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', `_s(${dir.value})`);
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', `_s(${dir.value})`);
+  }
+}
+
+var directives$1 = {
+  model,
+  text,
+  html
+};
+
+/*  */
+
+const baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag,
+  isUnaryTag,
+  mustUseProp,
+  canBeLeftOpenTag,
+  isReservedTag,
+  getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
+let isStaticKey;
+let isPlatformReservedTag;
+
+const genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ *    create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+  if (!root) return
+  isStaticKey = genStaticKeysCached(options.staticKeys || '');
+  isPlatformReservedTag = options.isReservedTag || no;
+  // first pass: mark all non-static nodes.
+  markStatic$1(root);
+  // second pass: mark static roots.
+  markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+  return makeMap(
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+    (keys ? ',' + keys : '')
+  )
+}
+
+function markStatic$1 (node) {
+  node.static = isStatic(node);
+  if (node.type === 1) {
+    // do not make component slot content static. this avoids
+    // 1. components not able to mutate slot nodes
+    // 2. static slot content fails for hot-reloading
+    if (
+      !isPlatformReservedTag(node.tag) &&
+      node.tag !== 'slot' &&
+      node.attrsMap['inline-template'] == null
+    ) {
+      return
+    }
+    for (let i = 0, l = node.children.length; i < l; i++) {
+      const child = node.children[i];
+      markStatic$1(child);
+      if (!child.static) {
+        node.static = false;
+      }
+    }
+    if (node.ifConditions) {
+      for (let i = 1, l = node.ifConditions.length; i < l; i++) {
+        const block = node.ifConditions[i].block;
+        markStatic$1(block);
+        if (!block.static) {
+          node.static = false;
+        }
+      }
+    }
+  }
+}
+
+function markStaticRoots (node, isInFor) {
+  if (node.type === 1) {
+    if (node.static || node.once) {
+      node.staticInFor = isInFor;
+    }
+    // For a node to qualify as a static root, it should have children that
+    // are not just static text. Otherwise the cost of hoisting out will
+    // outweigh the benefits and it's better off to just always render it fresh.
+    if (node.static && node.children.length && !(
+      node.children.length === 1 &&
+      node.children[0].type === 3
+    )) {
+      node.staticRoot = true;
+      return
+    } else {
+      node.staticRoot = false;
+    }
+    if (node.children) {
+      for (let i = 0, l = node.children.length; i < l; i++) {
+        markStaticRoots(node.children[i], isInFor || !!node.for);
+      }
+    }
+    if (node.ifConditions) {
+      for (let i = 1, l = node.ifConditions.length; i < l; i++) {
+        markStaticRoots(node.ifConditions[i].block, isInFor);
+      }
+    }
+  }
+}
+
+function isStatic (node) {
+  if (node.type === 2) { // expression
+    return false
+  }
+  if (node.type === 3) { // text
+    return true
+  }
+  return !!(node.pre || (
+    !node.hasBindings && // no dynamic bindings
+    !node.if && !node.for && // not v-if or v-for or v-else
+    !isBuiltInTag(node.tag) && // not a built-in
+    isPlatformReservedTag(node.tag) && // not a component
+    !isDirectChildOfTemplateFor(node) &&
+    Object.keys(node).every(isStaticKey)
+  ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+  while (node.parent) {
+    node = node.parent;
+    if (node.tag !== 'template') {
+      return false
+    }
+    if (node.for) {
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+const fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+const simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+
+// keyCode aliases
+const keyCodes = {
+  esc: 27,
+  tab: 9,
+  enter: 13,
+  space: 32,
+  up: 38,
+  left: 37,
+  right: 39,
+  down: 40,
+  'delete': [8, 46]
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+const genGuard = condition => `if(${condition})return null;`;
+
+const modifierCode = {
+  stop: '$event.stopPropagation();',
+  prevent: '$event.preventDefault();',
+  self: genGuard(`$event.target !== $event.currentTarget`),
+  ctrl: genGuard(`!$event.ctrlKey`),
+  shift: genGuard(`!$event.shiftKey`),
+  alt: genGuard(`!$event.altKey`),
+  meta: genGuard(`!$event.metaKey`),
+  left: genGuard(`'button' in $event && $event.button !== 0`),
+  middle: genGuard(`'button' in $event && $event.button !== 1`),
+  right: genGuard(`'button' in $event && $event.button !== 2`)
+};
+
+function genHandlers (
+  events,
+  isNative,
+  warn
+) {
+  let res = isNative ? 'nativeOn:{' : 'on:{';
+  for (const name in events) {
+    res += `"${name}":${genHandler(name, events[name])},`;
+  }
+  return res.slice(0, -1) + '}'
+}
+
+function genHandler (
+  name,
+  handler
+) {
+  if (!handler) {
+    return 'function(){}'
+  }
+
+  if (Array.isArray(handler)) {
+    return `[${handler.map(handler => genHandler(name, handler)).join(',')}]`
+  }
+
+  const isMethodPath = simplePathRE.test(handler.value);
+  const isFunctionExpression = fnExpRE.test(handler.value);
+
+  if (!handler.modifiers) {
+    return isMethodPath || isFunctionExpression
+      ? handler.value
+      : `function($event){${handler.value}}` // inline statement
+  } else {
+    let code = '';
+    let genModifierCode = '';
+    const keys = [];
+    for (const key in handler.modifiers) {
+      if (modifierCode[key]) {
+        genModifierCode += modifierCode[key];
+        // left/right
+        if (keyCodes[key]) {
+          keys.push(key);
+        }
+      } else if (key === 'exact') {
+        const modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(keyModifier => !modifiers[keyModifier])
+            .map(keyModifier => `$event.${keyModifier}Key`)
+            .join('||')
+        );
+      } else {
+        keys.push(key);
+      }
+    }
+    if (keys.length) {
+      code += genKeyFilter(keys);
+    }
+    // Make sure modifiers like prevent and stop get executed after key filtering
+    if (genModifierCode) {
+      code += genModifierCode;
+    }
+    const handlerCode = isMethodPath
+      ? handler.value + '($event)'
+      : isFunctionExpression
+        ? `(${handler.value})($event)`
+        : handler.value;
+    return `function($event){${code}${handlerCode}}`
+  }
+}
+
+function genKeyFilter (keys) {
+  return `if(!('button' in $event)&&${keys.map(genFilterCode).join('&&')})return null;`
+}
+
+function genFilterCode (key) {
+  const keyVal = parseInt(key, 10);
+  if (keyVal) {
+    return `$event.keyCode!==${keyVal}`
+  }
+  const code = keyCodes[key];
+  return (
+    `_k($event.keyCode,` +
+    `${JSON.stringify(key)},` +
+    `${JSON.stringify(code)},` +
+    `$event.key)`
+  )
+}
+
+/*  */
+
+function on (el, dir) {
+  if ("development" !== 'production' && dir.modifiers) {
+    warn(`v-on without argument does not support modifiers.`);
+  }
+  el.wrapListeners = (code) => `_g(${code},${dir.value})`;
+}
+
+/*  */
+
+function bind$1 (el, dir) {
+  el.wrapData = (code) => {
+    return `_b(${code},'${el.tag}',${dir.value},${
+      dir.modifiers && dir.modifiers.prop ? 'true' : 'false'
+    }${
+      dir.modifiers && dir.modifiers.sync ? ',true' : ''
+    })`
+  };
+}
+
+/*  */
+
+var baseDirectives = {
+  on,
+  bind: bind$1,
+  cloak: noop
+};
+
+/*  */
+
+class CodegenState {
+  
+  
+  
+  
+  
+  
+  
+  
+
+  constructor (options) {
+    this.options = options;
+    this.warn = options.warn || baseWarn;
+    this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+    this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+    this.directives = extend(extend({}, baseDirectives), options.directives);
+    const isReservedTag = options.isReservedTag || no;
+    this.maybeComponent = (el) => !isReservedTag(el.tag);
+    this.onceId = 0;
+    this.staticRenderFns = [];
+  }
+}
+
+
+
+function generate (
+  ast,
+  options
+) {
+  const state = new CodegenState(options);
+  const code = ast ? genElement(ast, state) : '_c("div")';
+  return {
+    render: `with(this){return ${code}}`,
+    staticRenderFns: state.staticRenderFns
+  }
+}
+
+function genElement (el, state) {
+  if (el.staticRoot && !el.staticProcessed) {
+    return genStatic(el, state)
+  } else if (el.once && !el.onceProcessed) {
+    return genOnce(el, state)
+  } else if (el.for && !el.forProcessed) {
+    return genFor(el, state)
+  } else if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.tag === 'template' && !el.slotTarget) {
+    return genChildren(el, state) || 'void 0'
+  } else if (el.tag === 'slot') {
+    return genSlot(el, state)
+  } else {
+    // component or element
+    let code;
+    if (el.component) {
+      code = genComponent(el.component, el, state);
+    } else {
+      const data = el.plain ? undefined : genData$2(el, state);
+
+      const children = el.inlineTemplate ? null : genChildren(el, state, true);
+      code = `_c('${el.tag}'${
+        data ? `,${data}` : '' // data
+      }${
+        children ? `,${children}` : '' // children
+      })`;
+    }
+    // module transforms
+    for (let i = 0; i < state.transforms.length; i++) {
+      code = state.transforms[i](el, code);
+    }
+    return code
+  }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state, once$$1) {
+  el.staticProcessed = true;
+  state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`);
+  return `_m(${
+    state.staticRenderFns.length - 1
+  },${
+    el.staticInFor ? 'true' : 'false'
+  },${
+    once$$1 ? 'true' : 'false'
+  })`
+}
+
+// v-once
+function genOnce (el, state) {
+  el.onceProcessed = true;
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.staticInFor) {
+    let key = '';
+    let parent = el.parent;
+    while (parent) {
+      if (parent.for) {
+        key = parent.key;
+        break
+      }
+      parent = parent.parent;
+    }
+    if (!key) {
+      "development" !== 'production' && state.warn(
+        `v-once can only be used inside v-for that is keyed. `
+      );
+      return genElement(el, state)
+    }
+    return `_o(${genElement(el, state)},${state.onceId++},${key})`
+  } else {
+    return genStatic(el, state, true)
+  }
+}
+
+function genIf (
+  el,
+  state,
+  altGen,
+  altEmpty
+) {
+  el.ifProcessed = true; // avoid recursion
+  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+  conditions,
+  state,
+  altGen,
+  altEmpty
+) {
+  if (!conditions.length) {
+    return altEmpty || '_e()'
+  }
+
+  const condition = conditions.shift();
+  if (condition.exp) {
+    return `(${condition.exp})?${
+      genTernaryExp(condition.block)
+    }:${
+      genIfConditions(conditions, state, altGen, altEmpty)
+    }`
+  } else {
+    return `${genTernaryExp(condition.block)}`
+  }
+
+  // v-if with v-once should generate code like (a)?_m(0):_m(1)
+  function genTernaryExp (el) {
+    return altGen
+      ? altGen(el, state)
+      : el.once
+        ? genOnce(el, state)
+        : genElement(el, state)
+  }
+}
+
+function genFor (
+  el,
+  state,
+  altGen,
+  altHelper
+) {
+  const exp = el.for;
+  const alias = el.alias;
+  const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
+  const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
+
+  if ("development" !== 'production' &&
+    state.maybeComponent(el) &&
+    el.tag !== 'slot' &&
+    el.tag !== 'template' &&
+    !el.key
+  ) {
+    state.warn(
+      `<${el.tag} v-for="${alias} in ${exp}">: component lists rendered with ` +
+      `v-for should have explicit keys. ` +
+      `See https://vuejs.org/guide/list.html#key for more info.`,
+      true /* tip */
+    );
+  }
+
+  el.forProcessed = true; // avoid recursion
+  return `${altHelper || '_l'}((${exp}),` +
+    `function(${alias}${iterator1}${iterator2}){` +
+      `return ${(altGen || genElement)(el, state)}` +
+    '})'
+}
+
+function genData$2 (el, state) {
+  let data = '{';
+
+  // directives first.
+  // directives may mutate the el's other properties before they are generated.
+  const dirs = genDirectives(el, state);
+  if (dirs) data += dirs + ',';
+
+  // key
+  if (el.key) {
+    data += `key:${el.key},`;
+  }
+  // ref
+  if (el.ref) {
+    data += `ref:${el.ref},`;
+  }
+  if (el.refInFor) {
+    data += `refInFor:true,`;
+  }
+  // pre
+  if (el.pre) {
+    data += `pre:true,`;
+  }
+  // record original tag name for components using "is" attribute
+  if (el.component) {
+    data += `tag:"${el.tag}",`;
+  }
+  // module data generation functions
+  for (let i = 0; i < state.dataGenFns.length; i++) {
+    data += state.dataGenFns[i](el);
+  }
+  // attributes
+  if (el.attrs) {
+    data += `attrs:{${genProps(el.attrs)}},`;
+  }
+  // DOM props
+  if (el.props) {
+    data += `domProps:{${genProps(el.props)}},`;
+  }
+  // event handlers
+  if (el.events) {
+    data += `${genHandlers(el.events, false, state.warn)},`;
+  }
+  if (el.nativeEvents) {
+    data += `${genHandlers(el.nativeEvents, true, state.warn)},`;
+  }
+  // slot target
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
+    data += `slot:${el.slotTarget},`;
+  }
+  // scoped slots
+  if (el.scopedSlots) {
+    data += `${genScopedSlots(el.scopedSlots, state)},`;
+  }
+  // component v-model
+  if (el.model) {
+    data += `model:{value:${
+      el.model.value
+    },callback:${
+      el.model.callback
+    },expression:${
+      el.model.expression
+    }},`;
+  }
+  // inline-template
+  if (el.inlineTemplate) {
+    const inlineTemplate = genInlineTemplate(el, state);
+    if (inlineTemplate) {
+      data += `${inlineTemplate},`;
+    }
+  }
+  data = data.replace(/,$/, '') + '}';
+  // v-bind data wrap
+  if (el.wrapData) {
+    data = el.wrapData(data);
+  }
+  // v-on data wrap
+  if (el.wrapListeners) {
+    data = el.wrapListeners(data);
+  }
+  return data
+}
+
+function genDirectives (el, state) {
+  const dirs = el.directives;
+  if (!dirs) return
+  let res = 'directives:[';
+  let hasRuntime = false;
+  let i, l, dir, needRuntime;
+  for (i = 0, l = dirs.length; i < l; i++) {
+    dir = dirs[i];
+    needRuntime = true;
+    const gen = state.directives[dir.name];
+    if (gen) {
+      // compile-time directive that manipulates AST.
+      // returns true if it also needs a runtime counterpart.
+      needRuntime = !!gen(el, dir, state.warn);
+    }
+    if (needRuntime) {
+      hasRuntime = true;
+      res += `{name:"${dir.name}",rawName:"${dir.rawName}"${
+        dir.value ? `,value:(${dir.value}),expression:${JSON.stringify(dir.value)}` : ''
+      }${
+        dir.arg ? `,arg:"${dir.arg}"` : ''
+      }${
+        dir.modifiers ? `,modifiers:${JSON.stringify(dir.modifiers)}` : ''
+      }},`;
+    }
+  }
+  if (hasRuntime) {
+    return res.slice(0, -1) + ']'
+  }
+}
+
+function genInlineTemplate (el, state) {
+  const ast = el.children[0];
+  if ("development" !== 'production' && (
+    el.children.length !== 1 || ast.type !== 1
+  )) {
+    state.warn('Inline-template components must have exactly one child element.');
+  }
+  if (ast.type === 1) {
+    const inlineRenderFns = generate(ast, state.options);
+    return `inlineTemplate:{render:function(){${
+      inlineRenderFns.render
+    }},staticRenderFns:[${
+      inlineRenderFns.staticRenderFns.map(code => `function(){${code}}`).join(',')
+    }]}`
+  }
+}
+
+function genScopedSlots (
+  slots,
+  state
+) {
+  return `scopedSlots:_u([${
+    Object.keys(slots).map(key => {
+      return genScopedSlot(key, slots[key], state)
+    }).join(',')
+  }])`
+}
+
+function genScopedSlot (
+  key,
+  el,
+  state
+) {
+  if (el.for && !el.forProcessed) {
+    return genForScopedSlot(key, el, state)
+  }
+  const fn = `function(${String(el.slotScope)}){` +
+    `return ${el.tag === 'template'
+      ? el.if
+        ? `${el.if}?${genChildren(el, state) || 'undefined'}:undefined`
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)
+  }}`;
+  return `{key:${key},fn:${fn}}`
+}
+
+function genForScopedSlot (
+  key,
+  el,
+  state
+) {
+  const exp = el.for;
+  const alias = el.alias;
+  const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
+  const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
+  el.forProcessed = true; // avoid recursion
+  return `_l((${exp}),` +
+    `function(${alias}${iterator1}${iterator2}){` +
+      `return ${genScopedSlot(key, el, state)}` +
+    '})'
+}
+
+function genChildren (
+  el,
+  state,
+  checkSkip,
+  altGenElement,
+  altGenNode
+) {
+  const children = el.children;
+  if (children.length) {
+    const el = children[0];
+    // optimize single v-for
+    if (children.length === 1 &&
+      el.for &&
+      el.tag !== 'template' &&
+      el.tag !== 'slot'
+    ) {
+      return (altGenElement || genElement)(el, state)
+    }
+    const normalizationType = checkSkip
+      ? getNormalizationType(children, state.maybeComponent)
+      : 0;
+    const gen = altGenNode || genNode;
+    return `[${children.map(c => gen(c, state)).join(',')}]${
+      normalizationType ? `,${normalizationType}` : ''
+    }`
+  }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+  children,
+  maybeComponent
+) {
+  let res = 0;
+  for (let i = 0; i < children.length; i++) {
+    const el = children[i];
+    if (el.type !== 1) {
+      continue
+    }
+    if (needsNormalization(el) ||
+        (el.ifConditions && el.ifConditions.some(c => needsNormalization(c.block)))) {
+      res = 2;
+      break
+    }
+    if (maybeComponent(el) ||
+        (el.ifConditions && el.ifConditions.some(c => maybeComponent(c.block)))) {
+      res = 1;
+    }
+  }
+  return res
+}
+
+function needsNormalization (el) {
+  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+  if (node.type === 1) {
+    return genElement(node, state)
+  } if (node.type === 3 && node.isComment) {
+    return genComment(node)
+  } else {
+    return genText(node)
+  }
+}
+
+function genText (text) {
+  return `_v(${text.type === 2
+    ? text.expression // no need for () because already wrapped in _s()
+    : transformSpecialNewlines(JSON.stringify(text.text))
+  })`
+}
+
+function genComment (comment) {
+  return `_e(${JSON.stringify(comment.text)})`
+}
+
+function genSlot (el, state) {
+  const slotName = el.slotName || '"default"';
+  const children = genChildren(el, state);
+  let res = `_t(${slotName}${children ? `,${children}` : ''}`;
+  const attrs = el.attrs && `{${el.attrs.map(a => `${camelize(a.name)}:${a.value}`).join(',')}}`;
+  const bind$$1 = el.attrsMap['v-bind'];
+  if ((attrs || bind$$1) && !children) {
+    res += `,null`;
+  }
+  if (attrs) {
+    res += `,${attrs}`;
+  }
+  if (bind$$1) {
+    res += `${attrs ? '' : ',null'},${bind$$1}`;
+  }
+  return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+  componentName,
+  el,
+  state
+) {
+  const children = el.inlineTemplate ? null : genChildren(el, state, true);
+  return `_c(${componentName},${genData$2(el, state)}${
+    children ? `,${children}` : ''
+  })`
+}
+
+function genProps (props) {
+  let res = '';
+  for (let i = 0; i < props.length; i++) {
+    const prop = props[i];
+    res += `"${prop.name}":${transformSpecialNewlines(prop.value)},`;
+  }
+  return res.slice(0, -1)
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+  return text
+    .replace(/\u2028/g, '\\u2028')
+    .replace(/\u2029/g, '\\u2029')
+}
+
+/*  */
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+const prohibitedKeywordRE = new RegExp('\\b' + (
+  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+  'super,throw,while,yield,delete,export,import,return,switch,default,' +
+  'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+const unaryOperatorsRE = new RegExp('\\b' + (
+  'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// strip strings in expressions
+const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast) {
+  const errors = [];
+  if (ast) {
+    checkNode(ast, errors);
+  }
+  return errors
+}
+
+function checkNode (node, errors) {
+  if (node.type === 1) {
+    for (const name in node.attrsMap) {
+      if (dirRE.test(name)) {
+        const value = node.attrsMap[name];
+        if (value) {
+          if (name === 'v-for') {
+            checkFor(node, `v-for="${value}"`, errors);
+          } else if (onRE.test(name)) {
+            checkEvent(value, `${name}="${value}"`, errors);
+          } else {
+            checkExpression(value, `${name}="${value}"`, errors);
+          }
+        }
+      }
+    }
+    if (node.children) {
+      for (let i = 0; i < node.children.length; i++) {
+        checkNode(node.children[i], errors);
+      }
+    }
+  } else if (node.type === 2) {
+    checkExpression(node.expression, node.text, errors);
+  }
+}
+
+function checkEvent (exp, text, errors) {
+  const stipped = exp.replace(stripStringRE, '');
+  const keywordMatch = stipped.match(unaryOperatorsRE);
+  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    errors.push(
+      `avoid using JavaScript unary operator as property name: ` +
+      `"${keywordMatch[0]}" in expression ${text.trim()}`
+    );
+  }
+  checkExpression(exp, text, errors);
+}
+
+function checkFor (node, text, errors) {
+  checkExpression(node.for || '', text, errors);
+  checkIdentifier(node.alias, 'v-for alias', text, errors);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+}
+
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(`var ${ident}=_`);
+    } catch (e) {
+      errors.push(`invalid ${type} "${ident}" in expression: ${text.trim()}`);
+    }
+  }
+}
+
+function checkExpression (exp, text, errors) {
+  try {
+    new Function(`return ${exp}`);
+  } catch (e) {
+    const keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+    if (keywordMatch) {
+      errors.push(
+        `avoid using JavaScript keyword as property name: ` +
+        `"${keywordMatch[0]}"\n  Raw expression: ${text.trim()}`
+      );
+    } else {
+      errors.push(
+        `invalid expression: ${e.message} in\n\n` +
+        `    ${exp}\n\n` +
+        `  Raw expression: ${text.trim()}\n`
+      );
+    }
+  }
+}
+
+/*  */
+
+function createFunction (code, errors) {
+  try {
+    return new Function(code)
+  } catch (err) {
+    errors.push({ err, code });
+    return noop
+  }
+}
+
+function createCompileToFunctionFn (compile) {
+  const cache = Object.create(null);
+
+  return function compileToFunctions (
+    template,
+    options,
+    vm
+  ) {
+    options = extend({}, options);
+    const warn$$1 = options.warn || warn;
+    delete options.warn;
+
+    /* istanbul ignore if */
+    {
+      // detect possible CSP restriction
+      try {
+        new Function('return 1');
+      } catch (e) {
+        if (e.toString().match(/unsafe-eval|CSP/)) {
+          warn$$1(
+            'It seems you are using the standalone build of Vue.js in an ' +
+            'environment with Content Security Policy that prohibits unsafe-eval. ' +
+            'The template compiler cannot work in this environment. Consider ' +
+            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+            'templates into render functions.'
+          );
+        }
+      }
+    }
+
+    // check cache
+    const key = options.delimiters
+      ? String(options.delimiters) + template
+      : template;
+    if (cache[key]) {
+      return cache[key]
+    }
+
+    // compile
+    const compiled = compile(template, options);
+
+    // check compilation errors/tips
+    {
+      if (compiled.errors && compiled.errors.length) {
+        warn$$1(
+          `Error compiling template:\n\n${template}\n\n` +
+          compiled.errors.map(e => `- ${e}`).join('\n') + '\n',
+          vm
+        );
+      }
+      if (compiled.tips && compiled.tips.length) {
+        compiled.tips.forEach(msg => tip(msg, vm));
+      }
+    }
+
+    // turn code into functions
+    const res = {};
+    const fnGenErrors = [];
+    res.render = createFunction(compiled.render, fnGenErrors);
+    res.staticRenderFns = compiled.staticRenderFns.map(code => {
+      return createFunction(code, fnGenErrors)
+    });
+
+    // check function generation errors.
+    // this should only happen if there is a bug in the compiler itself.
+    // mostly for codegen development use
+    /* istanbul ignore if */
+    {
+      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+        warn$$1(
+          `Failed to generate render function:\n\n` +
+          fnGenErrors.map(({ err, code }) => `${err.toString()} in\n\n${code}\n`).join('\n'),
+          vm
+        );
+      }
+    }
+
+    return (cache[key] = res)
+  }
+}
+
+/*  */
+
+function createCompilerCreator (baseCompile) {
+  return function createCompiler (baseOptions) {
+    function compile (
+      template,
+      options
+    ) {
+      const finalOptions = Object.create(baseOptions);
+      const errors = [];
+      const tips = [];
+      finalOptions.warn = (msg, tip) => {
+        (tip ? tips : errors).push(msg);
+      };
+
+      if (options) {
+        // merge custom modules
+        if (options.modules) {
+          finalOptions.modules =
+            (baseOptions.modules || []).concat(options.modules);
+        }
+        // merge custom directives
+        if (options.directives) {
+          finalOptions.directives = extend(
+            Object.create(baseOptions.directives),
+            options.directives
+          );
+        }
+        // copy other options
+        for (const key in options) {
+          if (key !== 'modules' && key !== 'directives') {
+            finalOptions[key] = options[key];
+          }
+        }
+      }
+
+      const compiled = baseCompile(template, finalOptions);
+      {
+        errors.push.apply(errors, detectErrors(compiled.ast));
+      }
+      compiled.errors = errors;
+      compiled.tips = tips;
+      return compiled
+    }
+
+    return {
+      compile,
+      compileToFunctions: createCompileToFunctionFn(compile)
+    }
+  }
+}
+
+/*  */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+const createCompiler = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  const ast = parse(template.trim(), options);
+  optimize(ast, options);
+  const code = generate(ast, options);
+  return {
+    ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
+const { compile, compileToFunctions } = createCompiler(baseOptions);
+
+/*  */
+
+// check whether current browser encodes a char inside attribute values
+let div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? `<a href="\n"/>` : `<div a="\n"/>`;
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+const shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+const shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
+const idToTemplate = cached(id => {
+  const el = query(id);
+  return el && el.innerHTML
+});
+
+const mount = Vue$3.prototype.$mount;
+Vue$3.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && query(el);
+
+  /* istanbul ignore if */
+  if (el === document.body || el === document.documentElement) {
+    "development" !== 'production' && warn(
+      `Do not mount Vue to <html> or <body> - mount to normal elements instead.`
+    );
+    return this
+  }
+
+  const options = this.$options;
+  // resolve template/el and convert to render function
+  if (!options.render) {
+    let template = options.template;
+    if (template) {
+      if (typeof template === 'string') {
+        if (template.charAt(0) === '#') {
+          template = idToTemplate(template);
+          /* istanbul ignore if */
+          if ("development" !== 'production' && !template) {
+            warn(
+              `Template element not found or is empty: ${options.template}`,
+              this
+            );
+          }
+        }
+      } else if (template.nodeType) {
+        template = template.innerHTML;
+      } else {
+        {
+          warn('invalid template option:' + template, this);
+        }
+        return this
+      }
+    } else if (el) {
+      template = getOuterHTML(el);
+    }
+    if (template) {
+      /* istanbul ignore if */
+      if ("development" !== 'production' && config.performance && mark) {
+        mark('compile');
+      }
+
+      const { render, staticRenderFns } = compileToFunctions(template, {
+        shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref,
+        delimiters: options.delimiters,
+        comments: options.comments
+      }, this);
+      options.render = render;
+      options.staticRenderFns = staticRenderFns;
+
+      /* istanbul ignore if */
+      if ("development" !== 'production' && config.performance && mark) {
+        mark('compile end');
+        measure(`vue ${this._name} compile`, 'compile', 'compile end');
+      }
+    }
+  }
+  return mount.call(this, el, hydrating)
+};
+
+/**
+ * Get outerHTML of elements, taking care
+ * of SVG elements in IE as well.
+ */
+function getOuterHTML (el) {
+  if (el.outerHTML) {
+    return el.outerHTML
+  } else {
+    const container = document.createElement('div');
+    container.appendChild(el.cloneNode(true));
+    return container.innerHTML
+  }
+}
+
+Vue$3.compile = compileToFunctions;
+
+export default Vue$3;
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 81396e31ddb..c2fc746aa94 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -715,9 +715,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -776,6 +776,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -2522,7 +2525,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -2742,7 +2745,10 @@ function mountComponent (
     };
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop);
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3029,9 +3035,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -3942,8 +3952,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -3984,8 +3994,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -4820,7 +4830,7 @@ function pruneCacheEntry (
   current
 ) {
   var cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
     cached$$1.componentInstance.$destroy();
   }
   cache[key] = null;
@@ -4971,7 +4981,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.8';
+Vue$3.version = '2.5.9';
 
 /*  */
 
@@ -5570,7 +5580,7 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '');
     } else {
       var ancestor = vnode;
@@ -5584,7 +5594,7 @@ function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -6174,7 +6184,7 @@ function updateAttrs (oldVnode, vnode) {
   // #4391: in IE9, setting type can reset value for input[type=radio]
   // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6214,6 +6224,23 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
       el.setAttribute(key, value);
     }
   }
@@ -8828,7 +8855,8 @@ function parseHTML (html, options) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
@@ -9169,7 +9197,7 @@ function processFor (el) {
         el.iterator2 = iteratorMatch[3].trim();
       }
     } else {
-      el.alias = alias;
+      el.alias = alias.replace(stripParensRE, '');
     }
   }
 }
diff --git a/dist/vue.js b/dist/vue.js
index 52bbe809cb8..bef5cbf43fa 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -721,9 +721,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -782,6 +782,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -2526,7 +2529,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -2746,7 +2749,10 @@ function mountComponent (
     };
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop);
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3033,9 +3039,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -3940,8 +3950,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -3982,8 +3992,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -4811,7 +4821,7 @@ function pruneCacheEntry (
   current
 ) {
   var cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
     cached$$1.componentInstance.$destroy();
   }
   cache[key] = null;
@@ -4962,7 +4972,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.8';
+Vue$3.version = '2.5.9';
 
 /*  */
 
@@ -5561,7 +5571,7 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '');
     } else {
       var ancestor = vnode;
@@ -5575,7 +5585,7 @@ function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -6165,7 +6175,7 @@ function updateAttrs (oldVnode, vnode) {
   // #4391: in IE9, setting type can reset value for input[type=radio]
   // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6205,6 +6215,23 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
       el.setAttribute(key, value);
     }
   }
@@ -8819,7 +8846,8 @@ function parseHTML (html, options) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
@@ -9160,7 +9188,7 @@ function processFor (el) {
         el.iterator2 = iteratorMatch[3].trim();
       }
     } else {
-      el.alias = alias;
+      el.alias = alias.replace(stripParensRE, '');
     }
   }
 }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index f8e49838767..94b22296c06 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Si.call(e)}function s(e){return"[object RegExp]"===Si.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}function p(e,t){return ji.call(e,t)}function v(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}function h(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n}function m(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function y(e,t){for(var n in t)e[n]=t[n];return e}function g(e){for(var t={},n=0;n<e.length;n++)e[n]&&y(t,e[n]);return t}function _(e,t,n){}function b(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var i=Array.isArray(e),a=Array.isArray(t);if(i&&a)return e.length===t.length&&e.every(function(e,n){return b(e,t[n])});if(i||a)return!1;var s=Object.keys(e),c=Object.keys(t);return s.length===c.length&&s.every(function(n){return b(e[n],t[n])})}catch(e){return!1}}function $(e,t){for(var n=0;n<e.length;n++)if(b(e[n],t))return n;return-1}function C(e){var t=!1;return function(){t||(t=!0,e.apply(this,arguments))}}function w(e){var t=(e+"").charCodeAt(0);return 36===t||95===t}function x(e,t,n,r){Object.defineProperty(e,t,{value:n,enumerable:!!r,writable:!0,configurable:!0})}function k(e){if(!Vi.test(e)){var t=e.split(".");return function(e){for(var n=0;n<t.length;n++){if(!e)return;e=e[t[n]]}return e}}}function A(e){return"function"==typeof e&&/native code/.test(e.toString())}function O(e){lo.target&&fo.push(lo.target),lo.target=e}function S(){lo.target=fo.pop()}function T(e){return new po(void 0,void 0,void 0,String(e))}function E(e,t){var n=e.componentOptions,r=new po(e.tag,e.data,e.children,e.text,e.elm,e.context,n,e.asyncFactory);return r.ns=e.ns,r.isStatic=e.isStatic,r.key=e.key,r.isComment=e.isComment,r.isCloned=!0,t&&(e.children&&(r.children=j(e.children,!0)),n&&n.children&&(n.children=j(n.children,!0))),r}function j(e,t){for(var n=e.length,r=new Array(n),i=0;i<n;i++)r[i]=E(e[i],t);return r}function N(e,t,n){e.__proto__=t}function 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ks,As,Os,Ss,Ts,Es,js,Ns,Ls,Is,Ms,Ds=f("script,style,textarea",!0),Ps={},Fs={"&lt;":"<","&gt;":">","&quot;":'"',"&amp;":"&","&#10;":"\n","&#9;":"\t"},Rs=/&(?:lt|gt|quot|amp);/g,Hs=/&(?:lt|gt|quot|amp|#10|#9);/g,Bs=f("pre,textarea",!0),Us=function(e,t){return e&&Bs(e)&&"\n"===t[0]},Vs=/^@|^v-on:/,zs=/^v-|^@|^:/,Ks=/(.*?)\s+(?:in|of)\s+(.*)/,Js=/\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/,qs=/^\(|\)$/g,Ws=/:(.*)$/,Gs=/^:|^v-bind:/,Zs=/\.[^.]+/g,Xs=v(fs.decode),Ys=/^xmlns:NS\d+/,Qs=/^NS\d+:/,ec=[us,ls,{preTransformNode:function(e,t){if("input"===e.tag){var n=e.attrsMap;if(n["v-model"]&&(n["v-bind:type"]||n[":type"])){var r=vn(e,"type"),i=hn(e,"v-if",!0),o=i?"&&("+i+")":"",a=null!=hn(e,"v-else",!0),s=hn(e,"v-else-if",!0),c=Vr(e);Sr(c),zr(c,"type","checkbox"),kr(c,t),c.processed=!0,c.if="("+r+")==='checkbox'"+o,Nr(c,{exp:c.if,block:c});var u=Vr(e);hn(u,"v-for",!0),zr(u,"type","radio"),kr(u,t),Nr(c,{exp:"("+r+")==='radio'"+o,block:u});var l=Vr(e);return hn(l,"v-for",!0),zr(l,":type",r),kr(l,t),Nr(c,{exp:i,block:l}),a?c.else=!0:s&&(c.elseif=s),c}}}}],tc={expectHTML:!0,modules:ec,directives:{model:function(e,t,n){var r=t.value,i=t.modifiers,o=e.tag,a=e.attrsMap.type;if(e.component)return mn(e,r,i),!1;if("select"===o)An(e,r,i);else if("input"===o&&"checkbox"===a)xn(e,r,i);else if("input"===o&&"radio"===a)kn(e,r,i);else if("input"===o||"textarea"===o)On(e,r,i);else if(!Ui.isReservedTag(o))return mn(e,r,i),!1;return!0},text:function(e,t){t.value&&ln(e,"textContent","_s("+t.value+")")},html:function(e,t){t.value&&ln(e,"innerHTML","_s("+t.value+")")}},isPreTag:function(e){return"pre"===e},isUnaryTag:ds,mustUseProp:ca,canBeLeftOpenTag:ps,isReservedTag:ga,getTagNamespace:Kt,staticKeys:function(e){return e.reduce(function(e,t){return e.concat(t.staticKeys||[])},[]).join(",")}(ec)},nc=v(function(e){return f("type,tag,attrsList,attrsMap,plain,parent,children,attrs"+(e?","+e:""))}),rc=/^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/,ic=/^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/,oc={esc:27,tab:9,enter:13,space:32,up:38,left:37,right:39,down:40,delete:[8,46]},ac=function(e){return"if("+e+")return null;"},sc={stop:"$event.stopPropagation();",prevent:"$event.preventDefault();",self:ac("$event.target !== $event.currentTarget"),ctrl:ac("!$event.ctrlKey"),shift:ac("!$event.shiftKey"),alt:ac("!$event.altKey"),meta:ac("!$event.metaKey"),left:ac("'button' in $event && $event.button !== 0"),middle:ac("'button' in $event && $event.button !== 1"),right:ac("'button' in $event && $event.button !== 2")},cc={on:function(e,t){e.wrapListeners=function(e){return"_g("+e+","+t.value+")"}},bind:function(e,t){e.wrapData=function(n){return"_b("+n+",'"+e.tag+"',"+t.value+","+(t.modifiers&&t.modifiers.prop?"true":"false")+(t.modifiers&&t.modifiers.sync?",true":"")+")"}},cloak:_},uc=function(e){this.options=e,this.warn=e.warn||cn,this.transforms=un(e.modules,"transformCode"),this.dataGenFns=un(e.modules,"genData"),this.directives=y(y({},cc),e.directives);var t=e.isReservedTag||Pi;this.maybeComponent=function(e){return!t(e.tag)},this.onceId=0,this.staticRenderFns=[]},lc=(new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b"),new RegExp("\\b"+"delete,typeof,void".split(",").join("\\s*\\([^\\)]*\\)|\\b")+"\\s*\\([^\\)]*\\)"),function(e){return function(t){function n(n,r){var i=Object.create(t),o=[],a=[];if(i.warn=function(e,t){(t?a:o).push(e)},r){r.modules&&(i.modules=(t.modules||[]).concat(r.modules)),r.directives&&(i.directives=y(Object.create(t.directives),r.directives));for(var s in r)"modules"!==s&&"directives"!==s&&(i[s]=r[s])}var c=e(n,i);return c.errors=o,c.tips=a,c}return{compile:n,compileToFunctions:xi(n)}}}(function(e,t){var n=Cr(e.trim(),t);Kr(n,t);var r=ei(n,t);return{ast:n,render:r.render,staticRenderFns:r.staticRenderFns}})(tc).compileToFunctions),fc=!!Ki&&ki(!1),dc=!!Ki&&ki(!0),pc=v(function(e){var t=Jt(e);return t&&t.innerHTML}),vc=Ot.prototype.$mount;return Ot.prototype.$mount=function(e,t){if((e=e&&Jt(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=pc(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=Ai(e));if(r){var i=lc(r,{shouldDecodeNewlines:fc,shouldDecodeNewlinesForHref:dc,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return vc.call(this,e,t)},Ot.compile=lc,Ot});
\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index f90db59dec3..90370a24bad 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -713,9 +713,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -774,6 +774,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -2520,7 +2523,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -2740,7 +2743,10 @@ function mountComponent (
     };
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop);
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3027,9 +3033,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -3940,8 +3950,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -3982,8 +3992,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -4818,7 +4828,7 @@ function pruneCacheEntry (
   current
 ) {
   var cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
     cached$$1.componentInstance.$destroy();
   }
   cache[key] = null;
@@ -4969,7 +4979,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.8';
+Vue$3.version = '2.5.9';
 
 /*  */
 
@@ -5568,7 +5578,7 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '');
     } else {
       var ancestor = vnode;
@@ -5582,7 +5592,7 @@ function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -6172,7 +6182,7 @@ function updateAttrs (oldVnode, vnode) {
   // #4391: in IE9, setting type can reset value for input[type=radio]
   // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6212,6 +6222,23 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
       el.setAttribute(key, value);
     }
   }
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 1dc9da4d154..1f6f0de67f3 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -711,9 +711,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -772,6 +772,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -2518,7 +2521,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -2738,7 +2741,10 @@ function mountComponent (
     };
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop);
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3025,9 +3031,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -3938,8 +3948,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -3980,8 +3990,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -4816,7 +4826,7 @@ function pruneCacheEntry (
   current
 ) {
   var cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
     cached$$1.componentInstance.$destroy();
   }
   cache[key] = null;
@@ -4967,7 +4977,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.8';
+Vue$3.version = '2.5.9';
 
 /*  */
 
@@ -5566,7 +5576,7 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '');
     } else {
       var ancestor = vnode;
@@ -5580,7 +5590,7 @@ function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -6170,7 +6180,7 @@ function updateAttrs (oldVnode, vnode) {
   // #4391: in IE9, setting type can reset value for input[type=radio]
   // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6210,6 +6220,23 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
       el.setAttribute(key, value);
     }
   }
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index b54715fd341..4b7698ef539 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -717,9 +717,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -778,6 +778,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -2522,7 +2525,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -2742,7 +2745,10 @@ function mountComponent (
     };
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop);
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -3029,9 +3035,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -3936,8 +3946,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -3978,8 +3988,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -4807,7 +4817,7 @@ function pruneCacheEntry (
   current
 ) {
   var cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
     cached$$1.componentInstance.$destroy();
   }
   cache[key] = null;
@@ -4958,7 +4968,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.8';
+Vue$3.version = '2.5.9';
 
 /*  */
 
@@ -5557,7 +5567,7 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '');
     } else {
       var ancestor = vnode;
@@ -5571,7 +5581,7 @@ function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -6161,7 +6171,7 @@ function updateAttrs (oldVnode, vnode) {
   // #4391: in IE9, setting type can reset value for input[type=radio]
   // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
     setAttr(elm, 'value', attrs.value);
   }
   for (key in oldAttrs) {
@@ -6201,6 +6211,23 @@ function setAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
       el.setAttribute(key, value);
     }
   }
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 7312dc7f838..0efc2b7777c 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.8
+ * Vue.js v2.5.9
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Jn.call(t)}function s(t){return"[object RegExp]"===Jn.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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v=r.elm,m=I.parentNode(v);if(c(o,d,v._leaveCb?null:m,I.nextSibling(v)),e(o.parent))for(var y=o.parent,_=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,_){for(var w=0;w<E.create.length;++w)E.create[w](Mo,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else qe(y);y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&g(r)}}return x(o,d,f),o.elm}e(r)&&g(r)}}({nodeOps:Po,modules:[Bo,Ho,qo,Ko,ti,dr?{create:Tn,activate:Tn,remove:function(t,e){!0!==t.data.show?En(t,e):e()}}:{}].concat(Vo)});yr&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Un(t,"input")});var di={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ct(n,"postpatch",function(){di.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||Lo(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Fn),gr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Fn)),yr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Un(t,"change")}}},pi={model:di,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},vi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},hi={name:"transition",props:vi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||_t(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!_t(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,ct(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(_t(a))return u;var d,p=function(){d()};ct(c,"afterEnter",p),ct(c,"enterCancelled",p),ct(f,"delayLeave",function(t){d=t})}}return i}}},mi=y({tag:String,moveClass:String},vi);delete mi.mode;var yi={Transition:hi,TransitionGroup:{props:mi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Xn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(ai,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(ai,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ni)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&wo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=To,Oe.config.isReservedAttr=Co,Oe.config.getTagNamespace=function(t){return Io(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(To(t))return!1;if(t=t.toLowerCase(),null!=Do[t])return Do[t];var e=document.createElement(t);return t.indexOf("-")>-1?Do[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Do[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,pi),y(Oe.options.components,yi),Oe.prototype.__patch__=dr?fi:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,St(this,t,e)},Oe.nextTick(function(){ur.devtools&&Or&&Or.emit("init",Oe)},0),Oe});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 9d47673342e..b77f50ac73e 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -440,9 +440,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -501,6 +501,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -3590,7 +3593,8 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
@@ -3931,7 +3935,7 @@ function processFor (el) {
         el.iterator2 = iteratorMatch[3].trim();
       }
     } else {
-      el.alias = alias;
+      el.alias = alias.replace(stripParensRE, '');
     }
   }
 }
@@ -6452,7 +6456,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -6780,9 +6784,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -7523,8 +7531,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -7565,8 +7573,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -8057,8 +8065,8 @@ function renderElement (el, isRoot, context) {
     el.data.attrs[SSR_ATTR] = 'true';
   }
 
-  if (el.functionalOptions) {
-    registerComponentForCache(el.functionalOptions, write);
+  if (el.fnOptions) {
+    registerComponentForCache(el.fnOptions, write);
   }
 
   var startTag = renderStartingTag(el, context);
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 1a23395ae40..60cc16063ec 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -442,9 +442,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -503,6 +503,9 @@ function cloneVNode (vnode, deep) {
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
   if (deep) {
     if (vnode.children) {
@@ -3329,7 +3332,8 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
@@ -3670,7 +3674,7 @@ function processFor (el) {
         el.iterator2 = iteratorMatch[3].trim();
       }
     } else {
-      el.alias = alias;
+      el.alias = alias.replace(stripParensRE, '');
     }
   }
 }
@@ -6189,7 +6193,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -6509,9 +6513,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -7254,8 +7262,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -7296,8 +7304,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -7788,8 +7796,8 @@ function renderElement (el, isRoot, context) {
     el.data.attrs[SSR_ATTR] = 'true';
   }
 
-  if (el.functionalOptions) {
-    registerComponentForCache(el.functionalOptions, write);
+  if (el.fnOptions) {
+    registerComponentForCache(el.fnOptions, write);
   }
 
   var startTag = renderStartingTag(el, context);
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index c5d326d5785..00e6f8cb536 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.8",
+  "version": "2.5.9",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 7afc377182d..049f66d7c3c 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -1076,9 +1076,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -2660,7 +2660,8 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
@@ -3001,7 +3002,7 @@ function processFor (el) {
         el.iterator2 = iteratorMatch[3].trim();
       }
     } else {
-      el.alias = alias;
+      el.alias = alias.replace(stripParensRE, '');
     }
   }
 }
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 472fedf5f94..fe5290e7304 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -1033,9 +1033,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -2262,7 +2262,8 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
@@ -2603,7 +2604,7 @@ function processFor (el) {
         el.iterator2 = iteratorMatch[3].trim();
       }
     } else {
-      el.alias = alias;
+      el.alias = alias.replace(stripParensRE, '');
     }
   }
 }
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 5f5262135fe..0d5da29c2de 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.8",
+  "version": "2.5.9",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",
diff --git a/packages/weex-template-compiler/build.js b/packages/weex-template-compiler/build.js
index 81f77215c19..ec042ce032f 100644
--- a/packages/weex-template-compiler/build.js
+++ b/packages/weex-template-compiler/build.js
@@ -8,6 +8,8 @@ var he = _interopDefault(require('he'));
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 
@@ -276,10 +278,11 @@ var decodingMap = {
   '&gt;': '>',
   '&quot;': '"',
   '&amp;': '&',
-  '&#10;': '\n'
+  '&#10;': '\n',
+  '&#9;': '\t'
 };
 var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -470,12 +473,12 @@ function parseHTML (html, options) {
         if (args[5] === '') { delete args[5]; }
       }
       var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
       attrs[i] = {
         name: args[1],
-        value: decodeAttr(
-          value,
-          options.shouldDecodeNewlines
-        )
+        value: decodeAttr(value, shouldDecodeNewlines)
       };
     }
 
@@ -653,6 +656,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -662,23 +667,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -831,267 +843,22 @@ function parseString (chr) {
   }
 }
 
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-var warn$1 = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
-
-if (process.env.NODE_ENV !== 'production') {
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
-
-  warn$1 = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn$1(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
 
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
 // Browser environment sniffing
 var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
 var UA = inBrowser && window.navigator.userAgent.toLowerCase();
 var isIE = UA && /msie|trident/.test(UA);
 var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
 var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
@@ -1140,88 +907,6 @@ var hasSymbol =
   typeof Symbol !== 'undefined' && isNative(Symbol) &&
   typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
 
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
 var _Set;
 /* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
@@ -1289,39 +974,59 @@ function addHandler (
   important,
   warn
 ) {
+  modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
     process.env.NODE_ENV !== 'production' && warn &&
-    modifiers && modifiers.prevent && modifiers.passive
+    modifiers.prevent && modifiers.passive
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
       'Passive handler can\'t prevent default event.'
     );
   }
+
   // check capture modifier
-  if (modifiers && modifiers.capture) {
+  if (modifiers.capture) {
     delete modifiers.capture;
     name = '!' + name; // mark the event as captured
   }
-  if (modifiers && modifiers.once) {
+  if (modifiers.once) {
     delete modifiers.once;
     name = '~' + name; // mark the event as once
   }
   /* istanbul ignore if */
-  if (modifiers && modifiers.passive) {
+  if (modifiers.passive) {
     delete modifiers.passive;
     name = '&' + name; // mark the event as passive
   }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   var events;
-  if (modifiers && modifiers.native) {
+  if (modifiers.native) {
     delete modifiers.native;
     events = el.nativeEvents || (el.nativeEvents = {});
   } else {
     events = el.events || (el.events = {});
   }
-  var newHandler = { value: value, modifiers: modifiers };
+
+  var newHandler = { value: value };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
   var handlers = events[name];
   /* istanbul ignore if */
   if (Array.isArray(handlers)) {
@@ -1450,7 +1155,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -1458,6 +1163,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -1466,6 +1175,7 @@ function parse (
     isUnaryTag: options.isUnaryTag,
     canBeLeftOpenTag: options.canBeLeftOpenTag,
     shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     start: function start (tag, attrs, unary) {
       // check namespace.
@@ -1569,11 +1279,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -1587,7 +1293,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -1619,11 +1325,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -1817,6 +1524,15 @@ function processSlot (el) {
       }
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+        warn(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
       el.slotScope = slotScope;
     }
     var slotTarget = getBindingAttr(el, 'slot');
@@ -1824,7 +1540,7 @@ function processSlot (el) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (!el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget);
       }
     }
@@ -1902,8 +1618,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -1913,6 +1629,13 @@ function processAttrs (el) {
         }
       }
       addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
     }
   }
 }
@@ -2168,22 +1891,28 @@ function genHandlers (
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
-    var handler = events[name];
-    // #5330: warn click.right, since right clicks do not actually fire click events.
-    if (process.env.NODE_ENV !== 'production' &&
-      name === 'click' &&
-      handler && handler.modifiers && handler.modifiers.right
-    ) {
-      warn(
-        "Use \"contextmenu\" instead of \"click.right\" since right clicks " +
-        "do not actually fire \"click\" events."
-      );
-    }
-    res += "\"" + name + "\":" + (genHandler(name, handler)) + ",";
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
   }
   return res.slice(0, -1) + '}'
 }
 
+// Generate handler code with binding params on Weex
+function genWeexHandler (params, handlerCode) {
+  var innerHandlerCode = handlerCode;
+  var exps = params.filter(function (exp) { return simplePathRE.test(exp) && exp !== '$event'; });
+  var bindings = exps.map(function (exp) { return ({ '@binding': exp }); });
+  var args = exps.map(function (exp, i) {
+    var key = "$_" + (i + 1);
+    innerHandlerCode = innerHandlerCode.replace(exp, key);
+    return key
+  });
+  args.push('$event');
+  return '{\n' +
+    "handler:function(" + (args.join(',')) + "){" + innerHandlerCode + "},\n" +
+    "params:" + (JSON.stringify(bindings)) + "\n" +
+    '}'
+}
+
 function genHandler (
   name,
   handler
@@ -2200,9 +1929,13 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    if (true && handler.params) {
+      return genWeexHandler(handler.params, handler.value)
+    }
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -2238,47 +1971,250 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    if (true && handler.params) {
+      return genWeexHandler(handler.params, code + handlerCode)
+    }
     return ("function($event){" + code + handlerCode + "}")
   }
 }
 
-function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
-}
+function genKeyFilter (keys) {
+  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+}
+
+function genFilterCode (key) {
+  var keyVal = parseInt(key, 10);
+  if (keyVal) {
+    return ("$event.keyCode!==" + keyVal)
+  }
+  var code = keyCodes[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(code)) + "," +
+    "$event.key)"
+  )
+}
+
+/*  */
+
+/**
+ * Check if a string starts with $ or _
+ */
+
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured'
+];
+
+/*  */
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: process.env.NODE_ENV !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: process.env.NODE_ENV !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
 
-function genFilterCode (key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return ("$event.keyCode!==" + keyVal)
-  }
-  var code = keyCodes[key];
-  return (
-    "_k($event.keyCode," +
-    (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
-  )
-}
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
 
 /*  */
 
-var emptyObject = Object.freeze({});
+var warn$1 = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
 
-/**
- * Check if a string starts with $ or _
- */
+if (process.env.NODE_ENV !== 'production') {
+  var hasConsole = typeof console !== 'undefined';
+  var classifyRE = /(?:^|[-_])(\w)/g;
+  var classify = function (str) { return str
+    .replace(classifyRE, function (c) { return c.toUpperCase(); })
+    .replace(/[-_]/g, ''); };
 
+  warn$1 = function (msg, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
 
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
+    }
+  };
+
+  tip = function (msg, vm) {
+    if (hasConsole && (!config.silent)) {
+      console.warn("[Vue tip]: " + msg + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = function (vm, includeFile) {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
+    if (!name && file) {
+      var match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+      (file && includeFile !== false ? (" at " + file) : '')
+    )
+  };
+
+  var repeat = function (str, n) {
+    var res = '';
+    while (n) {
+      if (n % 2 === 1) { res += str; }
+      if (n > 1) { str += str; }
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = function (vm) {
+    if (vm._isVue && vm.$parent) {
+      var tree = [];
+      var currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          var last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+            : formatComponentName(vm))); })
+        .join('\n')
+    } else {
+      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+    }
+  };
 }
 
 /*  */
@@ -2341,9 +2277,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -2597,7 +2533,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -2708,7 +2644,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -2742,7 +2678,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -2888,6 +2824,54 @@ function assertObjectType (name, value, vm) {
 
 /*  */
 
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+function flushCallbacks () {
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  channel.port1.onmessage = flushCallbacks;
+  
+} else {
+  /* istanbul ignore next */
+  
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  
+} else {
+  // fallback to macro
+  
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+
+/*  */
+
 /*  */
 
 function on (el, dir) {
@@ -2974,10 +2958,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state) {
+function genStatic (el, state, once$$1) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
 }
 
 // v-once
@@ -3003,7 +2987,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state)
+    return genStatic(el, state, true)
   }
 }
 
@@ -3343,11 +3327,18 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    res += "\"" + (prop.name) + "\":" + (generateValue(prop.value)) + ",";
   }
   return res.slice(0, -1)
 }
 
+function generateValue (value) {
+  if (typeof value === 'string') {
+    return transformSpecialNewlines(value)
+  }
+  return JSON.stringify(value)
+}
+
 // #3895, #4268
 function transformSpecialNewlines (text) {
   return text
@@ -3370,9 +3361,6 @@ var unaryOperatorsRE = new RegExp('\\b' + (
   'delete,typeof,void'
 ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// check valid identifier for v-for
-var identRE = /[A-Za-z_$][\w$]*/;
-
 // strip strings in expressions
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
@@ -3430,9 +3418,18 @@ function checkFor (node, text, errors) {
   checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
 }
 
-function checkIdentifier (ident, type, text, errors) {
-  if (typeof ident === 'string' && !identRE.test(ident)) {
-    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident + "=_"));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
   }
 }
 
@@ -3671,7 +3668,7 @@ function parseStaticClass (staticClass, options) {
       var result = parseText(name, options.delimiters);
       if (result) {
         dynamic = true;
-        return result
+        return result.expression
       }
       return JSON.stringify(name)
     });
@@ -3743,7 +3740,7 @@ function parseStaticStyle (staticStyle, options) {
       var dynamicValue = parseText(value, options.delimiters);
       if (dynamicValue) {
         dynamic = true;
-        return key + ':' + dynamicValue
+        return key + ':' + dynamicValue.expression
       }
       return key + ':' + JSON.stringify(value)
     }).filter(function (result) { return result; });
@@ -3813,7 +3810,200 @@ var append = {
   genData: genData$3
 };
 
+/*  */
+
+function genText$1 (node) {
+  var value = node.type === 3
+    ? node.text
+    : node.type === 2
+      ? node.tokens.length === 1
+        ? node.tokens[0]
+        : node.tokens
+      : '';
+  return JSON.stringify(value)
+}
+
+function postTransformText (el, options) {
+  // weex <text> can only contain text, so the parser
+  // always generates a single child.
+  if (el.children.length) {
+    addAttr(el, 'value', genText$1(el.children[0]));
+    el.children = [];
+    el.plain = false;
+  }
+}
+
+/*  */
+
+function parseAttrName (name) {
+  return camelize(name.replace(bindRE, ''))
+}
+
+function preTransformVBind (el, options) {
+  for (var attr in el.attrsMap) {
+    if (bindRE.test(attr)) {
+      var name = parseAttrName(attr);
+      var value = {
+        '@binding': getAndRemoveAttr(el, attr)
+      };
+      delete el.attrsMap[attr];
+      el.attrsMap[name] = value;
+      el.attrsList.push({ name: name, value: value });
+      // addAttr(el, name, value)
+      // el.hasBindings = false
+    }
+  }
+}
+
+/*  */
+
+function hasConditionDirective (el) {
+  for (var attr in el.attrsMap) {
+    if (/^v\-if|v\-else|v\-else\-if$/.test(attr)) {
+      return true
+    }
+  }
+  return false
+}
+
+function getPrevMatch (el) {
+  if (el.parent && el.parent.children) {
+    var prev = el.parent.children[el.parent.children.length - 1];
+    return prev.attrsMap['[[match]]']
+  }
+}
+
+function preTransformVIf (el, options) {
+  if (hasConditionDirective(el)) {
+    var exp;
+    var ifExp = getAndRemoveAttr(el, 'v-if', true /* remove from attrsMap */);
+    var elseExp = getAndRemoveAttr(el, 'v-else', true);
+    var elseifExp = getAndRemoveAttr(el, 'v-else-if', true);
+    if (ifExp) {
+      exp = ifExp;
+    } else {
+      var prevMatch = getPrevMatch(el);
+      if (prevMatch) {
+        exp = elseifExp
+          ? ("!(" + prevMatch + ") && (" + elseifExp + ")") // v-else-if
+          : ("!(" + prevMatch + ")"); // v-else
+      } else if (process.env.NODE_ENV !== 'production' && options.warn) {
+        options.warn(
+          "v-" + (elseifExp ? ('else-if="' + elseifExp + '"') : 'else') + " " +
+          "used on element <" + (el.tag) + "> without corresponding v-if."
+        );
+        return
+      }
+    }
+    el.attrsMap['[[match]]'] = exp;
+    el.attrsList.push({ name: '[[match]]', value: exp });
+  }
+}
+
+/*  */
+
+function preTransformVFor (el, options) {
+  var exp = getAndRemoveAttr(el, 'v-for');
+  if (!exp) {
+    return
+  }
+  var inMatch = exp.match(forAliasRE);
+  if (inMatch) {
+    var alias = inMatch[1].trim();
+    var desc = {
+      '@expression': inMatch[2].trim(),
+      '@alias': alias
+    };
+    var iteratorMatch = alias.match(forIteratorRE);
+    if (iteratorMatch) {
+      desc['@alias'] = iteratorMatch[1].trim();
+      desc['@index'] = iteratorMatch[2].trim();
+      if (iteratorMatch[3]) {
+        desc['@key'] = iteratorMatch[2].trim();
+        desc['@index'] = iteratorMatch[3].trim();
+      }
+    }
+    delete el.attrsMap['v-for'];
+    el.attrsMap['[[repeat]]'] = desc;
+    el.attrsList.push({ name: '[[repeat]]', value: desc });
+  } else if (process.env.NODE_ENV !== 'production' && options.warn) {
+    options.warn(("Invalid v-for expression: " + exp));
+  }
+}
+
+/*  */
+
+var inlineStatementRE = /^\s*([A-Za-z_$0-9\['\."\]]+)*\s*\(\s*(([A-Za-z_$0-9\['\."\]]+)?(\s*,\s*([A-Za-z_$0-9\['\."\]]+))*)\s*\)$/;
+
+function parseHandlerParams (handler) {
+  var res = inlineStatementRE.exec(handler.value);
+  if (res && res[2]) {
+    handler.params = res[2].split(/\s*,\s*/);
+  }
+}
+
+function postTransformVOn (el, options) {
+  var events = el.events;
+  if (!events) {
+    return
+  }
+  for (var name in events) {
+    var handler = events[name];
+    if (Array.isArray(handler)) {
+      handler.map(function (fn) { return parseHandlerParams(fn); });
+    } else {
+      parseHandlerParams(handler);
+    }
+  }
+}
+
+/*  */
+
+var currentRecycleList = null;
+
+function shouldCompile (el, options) {
+  return options.recyclable ||
+    (currentRecycleList && el !== currentRecycleList)
+}
+
+function preTransformNode$1 (el, options) {
+  if (el.tag === 'recycle-list') {
+    currentRecycleList = el;
+  }
+  if (shouldCompile(el, options)) {
+    preTransformVBind(el, options);
+    preTransformVIf(el, options); // also v-else-if and v-else
+    preTransformVFor(el, options);
+  }
+}
+
+function transformNode$3 (el, options) {
+  if (shouldCompile(el, options)) {
+    // do nothing yet
+  }
+}
+
+function postTransformNode (el, options) {
+  if (shouldCompile(el, options)) {
+    // <text>: transform children text into value attr
+    if (el.tag === 'text') {
+      postTransformText(el, options);
+    }
+    postTransformVOn(el, options);
+  }
+  if (el === currentRecycleList) {
+    currentRecycleList = null;
+  }
+}
+
+var recycleList = {
+  preTransformNode: preTransformNode$1,
+  transformNode: transformNode$3,
+  postTransformNode: postTransformNode
+};
+
 var modules = [
+  recycleList,
   klass,
   style,
   props,
@@ -3879,7 +4069,7 @@ var canBeLeftOpenTag$1 = makeMap(
 );
 
 var isRuntimeComponent = makeMap(
-  'richtext,trisition,trisition-group',
+  'richtext,transition,transition-group',
   true
 );
 
@@ -3902,10 +4092,31 @@ var baseOptions = {
   isReservedTag: isReservedTag,
   getTagNamespace: getTagNamespace,
   preserveWhitespace: false,
+  recyclable: false,
   staticKeys: genStaticKeys(modules)
 };
 
-var ref = createCompiler(baseOptions);
-var compile = ref.compile;
+var compiler = createCompiler(baseOptions);
+
+function compile (
+  template,
+  options
+) {
+  var generateAltRender = false;
+  if (options && options.recyclable === true) {
+    generateAltRender = true;
+    options.recyclable = false;
+  }
+  var result = compiler.compile(template, options);
+
+  // generate @render function for <recycle-list>
+  if (options && generateAltRender) {
+    options.recyclable = true;
+    var ref = compiler.compile(template, options);
+    var render = ref.render;
+    result['@render'] = render;
+  }
+  return result
+}
 
 exports.compile = compile;
diff --git a/packages/weex-vue-framework/factory.js b/packages/weex-vue-framework/factory.js
index 266cba3f412..858e217e602 100644
--- a/packages/weex-vue-framework/factory.js
+++ b/packages/weex-vue-framework/factory.js
@@ -4,6 +4,8 @@ module.exports = function weexFactory (exports, document) {
 
 /*  */
 
+var emptyObject = Object.freeze({});
+
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
 function isUndef (v) {
@@ -417,8 +419,6 @@ var config = ({
 
 /*  */
 
-var emptyObject = Object.freeze({});
-
 /**
  * Check if a string starts with $ or _
  */
@@ -459,6 +459,95 @@ function parsePath (path) {
 
 /*  */
 
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = (function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
 var warn = noop;
 var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
@@ -553,220 +642,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if (inBrowser && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = UA && UA.indexOf('android') > 0;
-var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/**
- * Defer a task to execute it asynchronously.
- */
-var nextTick = (function () {
-  var callbacks = [];
-  var pending = false;
-  var timerFunc;
-
-  function nextTickHandler () {
-    pending = false;
-    var copies = callbacks.slice(0);
-    callbacks.length = 0;
-    for (var i = 0; i < copies.length; i++) {
-      copies[i]();
-    }
-  }
-
-  // An asynchronous deferring mechanism.
-  // In pre 2.4, we used to use microtasks (Promise/MutationObserver)
-  // but microtasks actually has too high a priority and fires in between
-  // supposedly sequential events (e.g. #4521, #6690) or even between
-  // bubbling of the same event (#6566). Technically setImmediate should be
-  // the ideal choice, but it's not available everywhere; and the only polyfill
-  // that consistently queues the callback after all DOM events triggered in the
-  // same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    timerFunc = function () {
-      setImmediate(nextTickHandler);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = nextTickHandler;
-    timerFunc = function () {
-      port.postMessage(1);
-    };
-  } else
-  /* istanbul ignore next */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) {
-    // use microtask in non-DOM environments, e.g. Weex
-    var p = Promise.resolve();
-    timerFunc = function () {
-      p.then(nextTickHandler);
-    };
-  } else {
-    // fallback to setTimeout
-    timerFunc = function () {
-      setTimeout(nextTickHandler, 0);
-    };
-  }
-
-  return function queueNextTick (cb, ctx) {
-    var _resolve;
-    callbacks.push(function () {
-      if (cb) {
-        try {
-          cb.call(ctx);
-        } catch (e) {
-          handleError(e, ctx, 'nextTick');
-        }
-      } else if (_resolve) {
-        _resolve(ctx);
-      }
-    });
-    if (!pending) {
-      pending = true;
-      timerFunc();
-    }
-    // $flow-disable-line
-    if (!cb && typeof Promise !== 'undefined') {
-      return new Promise(function (resolve, reject) {
-        _resolve = resolve;
-      })
-    }
-  }
-})();
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
 
 var uid$1 = 0;
 
@@ -835,9 +710,9 @@ var VNode = function VNode (
   this.elm = elm;
   this.ns = undefined;
   this.context = context;
-  this.functionalContext = undefined;
-  this.functionalOptions = undefined;
-  this.functionalScopeId = undefined;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
   this.key = data && data.key;
   this.componentOptions = componentOptions;
   this.componentInstance = undefined;
@@ -881,6 +756,7 @@ function createTextVNode (val) {
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
 function cloneVNode (vnode, deep) {
+  var componentOptions = vnode.componentOptions;
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -888,16 +764,24 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    vnode.componentOptions,
+    componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
   cloned.isStatic = vnode.isStatic;
   cloned.key = vnode.key;
   cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep && vnode.children) {
-    cloned.children = cloneVNodes(vnode.children);
+  if (deep) {
+    if (vnode.children) {
+      cloned.children = cloneVNodes(vnode.children, true);
+    }
+    if (componentOptions && componentOptions.children) {
+      componentOptions.children = cloneVNodes(componentOptions.children, true);
+    }
   }
   return cloned
 }
@@ -1130,7 +1014,7 @@ function set (target, key, val) {
     target.splice(key, 1, val);
     return val
   }
-  if (hasOwn(target, key)) {
+  if (key in target && !(key in Object.prototype)) {
     target[key] = val;
     return val
   }
@@ -1262,7 +1146,7 @@ function mergeDataOrFn (
         typeof parentVal === 'function' ? parentVal.call(this) : parentVal
       )
     }
-  } else if (parentVal || childVal) {
+  } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
@@ -1296,7 +1180,7 @@ strats.data = function (
 
       return parentVal
     }
-    return mergeDataOrFn.call(this, parentVal, childVal)
+    return mergeDataOrFn(parentVal, childVal)
   }
 
   return mergeDataOrFn(parentVal, childVal, vm)
@@ -1770,6 +1654,158 @@ function isType (type, fn) {
 
 /*  */
 
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  if (process.env.NODE_ENV !== 'production') {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+/* globals MessageChannel */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) Task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine MicroTask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a Task instead of a MicroTask.
+ */
+
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
 /* not type checking this file because flow doesn't play well with Proxy */
 
 var initProxy;
@@ -1846,6 +1882,43 @@ if (process.env.NODE_ENV !== 'production') {
   };
 }
 
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
 var mark;
 var measure;
 
@@ -1912,11 +1985,15 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    if (true && isPlainObject(def)) {
+      cur = def.handler;
+      event.params = def.params;
+    }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -1926,7 +2003,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -1943,6 +2020,9 @@ function updateListeners (
 /*  */
 
 function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
   var invoker;
   var oldHook = def[hookKey];
 
@@ -2310,6 +2390,7 @@ function updateComponentListeners (
 ) {
   target = vm;
   updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  target = undefined;
 }
 
 function eventsMixin (Vue) {
@@ -2365,7 +2446,7 @@ function eventsMixin (Vue) {
     if (!cbs) {
       return vm
     }
-    if (arguments.length === 1) {
+    if (!fn) {
       vm._events[event] = null;
       return vm
     }
@@ -2427,7 +2508,6 @@ function resolveSlots (
   if (!children) {
     return slots
   }
-  var defaultSlot = [];
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2437,7 +2517,7 @@ function resolveSlots (
     }
     // named slots should only be respected if the vnode was rendered in the
     // same context.
-    if ((child.context === context || child.functionalContext === context) &&
+    if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
       var name = child.data.slot;
@@ -2448,18 +2528,20 @@ function resolveSlots (
         slot.push(child);
       }
     } else {
-      defaultSlot.push(child);
+      (slots.default || (slots.default = [])).push(child);
     }
   }
-  // ignore whitespace
-  if (!defaultSlot.every(isWhitespace)) {
-    slots.default = defaultSlot;
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
   }
   return slots
 }
 
 function isWhitespace (node) {
-  return node.isComment || node.text === ' '
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 function resolveScopedSlots (
@@ -2655,7 +2737,10 @@ function mountComponent (
     };
   }
 
-  vm._watcher = new Watcher(vm, updateComponent, noop);
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -2942,9 +3027,13 @@ var Watcher = function Watcher (
   vm,
   expOrFn,
   cb,
-  options
+  options,
+  isRenderWatcher
 ) {
   this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
   vm._watchers.push(this);
   // options
   if (options) {
@@ -3138,40 +3227,6 @@ Watcher.prototype.teardown = function teardown () {
   }
 };
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-var seenObjects = new _Set();
-function traverse (val) {
-  seenObjects.clear();
-  _traverse(val, seenObjects);
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
 /*  */
 
 var sharedPropertyDefinition = {
@@ -3617,6 +3672,7 @@ function renderSlot (
   bindObject
 ) {
   var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
@@ -3628,19 +3684,28 @@ function renderSlot (
       }
       props = extend(extend({}, bindObject), props);
     }
-    return scopedSlotFn(props) || fallback
+    nodes = scopedSlotFn(props) || fallback;
   } else {
     var slotNodes = this.$slots[name];
     // warn duplicate slot usage
-    if (slotNodes && process.env.NODE_ENV !== 'production') {
-      slotNodes._rendered && warn(
-        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-        "- this will likely cause render errors.",
-        this
-      );
+    if (slotNodes) {
+      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
+        warn(
+          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
+          "- this will likely cause render errors.",
+          this
+        );
+      }
       slotNodes._rendered = true;
     }
-    return slotNodes || fallback
+    nodes = slotNodes || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
 }
 
@@ -3739,12 +3804,19 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor
+  isInFor,
+  isOnce
 ) {
-  // static trees can be rendered once and cached on the contructor options
-  // so every instance shares the same cached trees
+  // render fns generated by compiler < 2.5.4 does not provide v-once
+  // information to runtime so be conservative
+  var isOldVersion = arguments.length < 3;
+  // if a static tree is generated by v-once, it is cached on the instance;
+  // otherwise it is purely static and can be cached on the shared options
+  // across all instances.
   var renderFns = this.$options.staticRenderFns;
-  var cached = renderFns.cached || (renderFns.cached = []);
+  var cached = isOldVersion || isOnce
+    ? (this._staticTrees || (this._staticTrees = []))
+    : (renderFns.cached || (renderFns.cached = []));
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3872,8 +3944,8 @@ function FunctionalRenderContext (
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
       if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
       }
       return vnode
     };
@@ -3914,8 +3986,8 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
+    vnode.fnContext = contextVm;
+    vnode.fnOptions = options;
     if (data.slot) {
       (vnode.data || (vnode.data = {})).slot = data.slot;
     }
@@ -4050,6 +4122,21 @@ function createComponent (
 
   data = data || {};
 
+  // recycle-list optimized render function for extracting cell-slot
+  // template. This is essentially inline expanding instead of creating
+  // an actual instance.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  if (true && data.attrs && data.attrs['@isInRecycleList']) {
+    var altRender = Ctor.options['@render'];
+    if (altRender) {
+      return altRender.call(
+        context,
+        context.$createElement,
+        data.attrs
+      )
+    }
+  }
+
   // resolve constructor options in case global mixins are applied after
   // component constructor creation
   resolveConstructorOptions(Ctor);
@@ -4212,11 +4299,13 @@ function _createElement (
   if (process.env.NODE_ENV !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    if (!true || !('@binding' in data.key)) {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -4286,6 +4375,7 @@ function applyNS (vnode, ns, force) {
 
 function initRender (vm) {
   vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
   var options = vm.$options;
   var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
   var renderContext = parentVnode && parentVnode.context;
@@ -4337,7 +4427,9 @@ function renderMixin (Vue) {
       // last render. They need to be cloned to ensure "freshness" for this render.
       for (var key in vm.$slots) {
         var slot = vm.$slots[key];
-        if (slot._rendered) {
+        // _rendered is a flag added by renderSlot, but may not be present
+        // if the slot is passed from manually written render functions
+        if (slot._rendered || (slot[0] && slot[0].elm)) {
           vm.$slots[key] = cloneVNodes(slot, true /* deep */);
         }
       }
@@ -4747,7 +4839,7 @@ function pruneCacheEntry (
   current
 ) {
   var cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
     cached$$1.componentInstance.$destroy();
   }
   cache[key] = null;
@@ -4789,21 +4881,27 @@ var KeepAlive = {
   },
 
   render: function render () {
-    var vnode = getFirstComponentChild(this.$slots.default);
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
     var componentOptions = vnode && vnode.componentOptions;
     if (componentOptions) {
       // check pattern
       var name = getComponentName(componentOptions);
-      if (name && (
-        (this.include && !matches(this.include, name)) ||
-        (this.exclude && matches(this.exclude, name))
-      )) {
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
         return vnode
       }
 
-      var ref = this;
-      var cache = ref.cache;
-      var keys = ref.keys;
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
       var key = vnode.key == null
         // same constructor may get registered as different local components
         // so cid alone is not enough (#3269)
@@ -4825,7 +4923,7 @@ var KeepAlive = {
 
       vnode.data.keepAlive = true;
     }
-    return vnode
+    return vnode || (slot && slot[0])
   }
 };
 
@@ -4892,7 +4990,7 @@ Object.defineProperty(Vue$2.prototype, '$ssrContext', {
   }
 });
 
-Vue$2.version = '2.5.0';
+Vue$2.version = '2.5.8';
 
 var latestNodeId = 1;
 
@@ -5171,7 +5269,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  var inPre = 0;
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
   function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
@@ -5184,21 +5298,9 @@ function createPatchFunction (backend) {
     if (isDef(tag)) {
       if (process.env.NODE_ENV !== 'production') {
         if (data && data.pre) {
-          inPre++;
+          creatingElmInVPre++;
         }
-        if (
-          !inPre &&
-          !vnode.ns &&
-          !(
-            config.ignoredElements.length &&
-            config.ignoredElements.some(function (ignore) {
-              return isRegExp(ignore)
-                ? ignore.test(tag)
-                : ignore === tag
-            })
-          ) &&
-          config.isUnknownElement(tag)
-        ) {
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
           warn(
             'Unknown custom element: <' + tag + '> - did you ' +
             'register the component correctly? For recursive components, ' +
@@ -5234,7 +5336,7 @@ function createPatchFunction (backend) {
       }
 
       if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        inPre--;
+        creatingElmInVPre--;
       }
     } else if (isTrue(vnode.isComment)) {
       vnode.elm = nodeOps.createComment(vnode.text);
@@ -5351,7 +5453,7 @@ function createPatchFunction (backend) {
   // of going through the normal attribute patching process.
   function setScope (vnode) {
     var i;
-    if (isDef(i = vnode.functionalScopeId)) {
+    if (isDef(i = vnode.fnScopeId)) {
       nodeOps.setAttribute(vnode.elm, i, '');
     } else {
       var ancestor = vnode;
@@ -5365,7 +5467,7 @@ function createPatchFunction (backend) {
     // for slot content they should also get the scopeId from the host instance.
     if (isDef(i = activeInstance) &&
       i !== vnode.context &&
-      i !== vnode.functionalContext &&
+      i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
       nodeOps.setAttribute(vnode.elm, i, '');
@@ -5589,27 +5691,32 @@ function createPatchFunction (backend) {
     }
   }
 
-  var bailed = false;
+  var hydrationBailed = false;
   // list of modules that can skip create hook during hydration because they
   // are already rendered on the client or has no need for initialization
-  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
   // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue) {
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
     if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.elm = elm;
       vnode.isAsyncPlaceholder = true;
       return true
     }
+    // assert node match
     if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode)) {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
         return false
       }
     }
-    vnode.elm = elm;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
     if (isDef(data)) {
       if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
       if (isDef(i = vnode.componentInstance)) {
@@ -5630,9 +5737,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('server innerHTML: ', i);
                 console.warn('client innerHTML: ', elm.innerHTML);
@@ -5644,7 +5751,7 @@ function createPatchFunction (backend) {
             var childrenMatch = true;
             var childNode = elm.firstChild;
             for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
                 childrenMatch = false;
                 break
               }
@@ -5656,9 +5763,9 @@ function createPatchFunction (backend) {
               /* istanbul ignore if */
               if (process.env.NODE_ENV !== 'production' &&
                 typeof console !== 'undefined' &&
-                !bailed
+                !hydrationBailed
               ) {
-                bailed = true;
+                hydrationBailed = true;
                 console.warn('Parent: ', elm);
                 console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
               }
@@ -5668,12 +5775,18 @@ function createPatchFunction (backend) {
         }
       }
       if (isDef(data)) {
+        var fullInvoke = false;
         for (var key in data) {
           if (!isRenderedModule(key)) {
+            fullInvoke = true;
             invokeCreateHooks(vnode, insertedVnodeQueue);
             break
           }
         }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
       }
     } else if (elm.data !== vnode.text) {
       elm.data = vnode.text;
@@ -5681,10 +5794,10 @@ function createPatchFunction (backend) {
     return true
   }
 
-  function assertNodeMatch (node, vnode) {
+  function assertNodeMatch (node, vnode, inVPre) {
     if (isDef(vnode.tag)) {
-      return (
-        vnode.tag.indexOf('vue-component') === 0 ||
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
         vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
       )
     } else {
@@ -5737,9 +5850,12 @@ function createPatchFunction (backend) {
           // create an empty node and replace it
           oldVnode = emptyNodeAt(oldVnode);
         }
+
         // replacing existing element
         var oldElm = oldVnode.elm;
         var parentElm$1 = nodeOps.parentNode(oldElm);
+
+        // create new node
         createElm(
           vnode,
           insertedVnodeQueue,
@@ -5750,9 +5866,8 @@ function createPatchFunction (backend) {
           nodeOps.nextSibling(oldElm)
         );
 
+        // update parent placeholder node element, recursively
         if (isDef(vnode.parent)) {
-          // component root element replaced.
-          // update parent placeholder node element, recursively
           var ancestor = vnode.parent;
           var patchable = isPatchable(vnode);
           while (ancestor) {
@@ -5781,6 +5896,7 @@ function createPatchFunction (backend) {
           }
         }
 
+        // destroy old node
         if (isDef(parentElm$1)) {
           removeVnodes(parentElm$1, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
@@ -5846,14 +5962,14 @@ function _update (oldVnode, vnode) {
       }
     };
     if (isCreate) {
-      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
+      mergeVNodeHook(vnode, 'insert', callInsert);
     } else {
       callInsert();
     }
   }
 
   if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
+    mergeVNodeHook(vnode, 'postpatch', function () {
       for (var i = 0; i < dirsWithPostpatch.length; i++) {
         callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
       }
@@ -5927,18 +6043,27 @@ function updateAttrs (oldVnode, vnode) {
     attrs = vnode.data.attrs = extend({}, attrs);
   }
 
+  var supportBatchUpdate = typeof elm.setAttrs === 'function';
+  var batchedAttrs = {};
   for (key in attrs) {
     cur = attrs[key];
     old = oldAttrs[key];
     if (old !== cur) {
-      elm.setAttr(key, cur);
+      supportBatchUpdate
+        ? (batchedAttrs[key] = cur)
+        : elm.setAttr(key, cur);
     }
   }
   for (key in oldAttrs) {
     if (attrs[key] == null) {
-      elm.setAttr(key);
+      supportBatchUpdate
+        ? (batchedAttrs[key] = undefined)
+        : elm.setAttr(key);
     }
   }
+  if (supportBatchUpdate) {
+    elm.setAttrs(batchedAttrs);
+  }
 }
 
 var attrs = {
@@ -5982,8 +6107,12 @@ function updateClass (oldVnode, vnode) {
   }
 
   var style = getStyle(oldClassList, classList, ctx);
-  for (var key in style) {
-    el.setStyle(key, style[key]);
+  if (typeof el.setStyles === 'function') {
+    el.setStyles(style);
+  } else {
+    for (var key in style) {
+      el.setStyle(key, style[key]);
+    }
   }
 }
 
@@ -6020,7 +6149,9 @@ function add$1 (
   event,
   handler,
   once,
-  capture
+  capture,
+  passive,
+  params
 ) {
   if (capture) {
     console.log('Weex do not support event in bubble phase.');
@@ -6038,7 +6169,7 @@ function add$1 (
       }
     };
   }
-  target$1.addEvent(event, handler);
+  target$1.addEvent(event, handler, params);
 }
 
 function remove$2 (
@@ -6058,6 +6189,7 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  target$1 = undefined;
 }
 
 var events = {
@@ -6076,11 +6208,18 @@ function createStyle (oldVnode, vnode) {
   }
   var elm = vnode.elm;
   var staticStyle = vnode.data.staticStyle;
+  var supportBatchUpdate = typeof elm.setStyles === 'function';
+  var batchedStyles = {};
   for (var name in staticStyle) {
     if (staticStyle[name]) {
-      elm.setStyle(normalize(name), staticStyle[name]);
+      supportBatchUpdate
+        ? (batchedStyles[normalize(name)] = staticStyle[name])
+        : elm.setStyle(normalize(name), staticStyle[name]);
     }
   }
+  if (supportBatchUpdate) {
+    elm.setStyles(batchedStyles);
+  }
   updateStyle(oldVnode, vnode);
 }
 
@@ -6106,14 +6245,23 @@ function updateStyle (oldVnode, vnode) {
     style = vnode.data.style = extend({}, style);
   }
 
+  var supportBatchUpdate = typeof elm.setStyles === 'function';
+  var batchedStyles = {};
   for (name in oldStyle) {
     if (!style[name]) {
-      elm.setStyle(normalize(name), '');
+      supportBatchUpdate
+        ? (batchedStyles[normalize(name)] = '')
+        : elm.setStyle(normalize(name), '');
     }
   }
   for (name in style) {
     cur = style[name];
-    elm.setStyle(normalize(name), cur);
+    supportBatchUpdate
+      ? (batchedStyles[normalize(name)] = cur)
+      : elm.setStyle(normalize(name), cur);
+  }
+  if (supportBatchUpdate) {
+    elm.setStyles(batchedStyles);
   }
 }
 
@@ -6302,8 +6450,12 @@ function enter (_, vnode) {
   beforeEnterHook && beforeEnterHook(el);
 
   if (startState) {
-    for (var key in startState) {
-      el.setStyle(key, startState[key]);
+    if (typeof el.setStyles === 'function') {
+      el.setStyles(startState);
+    } else {
+      for (var key in startState) {
+        el.setStyle(key, startState[key]);
+      }
     }
   }
 
@@ -6469,6 +6621,8 @@ var patch = createPatchFunction({
 var platformDirectives = {
 };
 
+/*  */
+
 function getVNodeType (vnode) {
   if (!vnode.tag) {
     return ''
@@ -6477,29 +6631,20 @@ function getVNodeType (vnode) {
 }
 
 function isSimpleSpan (vnode) {
-  return vnode.children && vnode.children.length === 1 && !vnode.children[0].tag
-}
-
-var cssLengthRE = /^([+-]?[0-9]+(\.[0-9]+)?)(px|em|ex|%|in|cm|mm|pt|pc)$/i;
-function trimCSSUnit (prop) {
-  var res = String(prop).match(cssLengthRE);
-  if (res) {
-    return Number(res[1])
-  }
-  return prop
+  return vnode.children &&
+    vnode.children.length === 1 &&
+    !vnode.children[0].tag
 }
 
 function parseStyle (vnode) {
   if (!vnode || !vnode.data) {
     return
   }
-
   var ref = vnode.data;
   var staticStyle = ref.staticStyle;
   var staticClass = ref.staticClass;
   if (vnode.data.style || vnode.data.class || staticStyle || staticClass) {
     var styles = Object.assign({}, staticStyle, vnode.data.style);
-
     var cssMap = vnode.context.$options.style || {};
     var classList = [].concat(staticClass, vnode.data.class);
     classList.forEach(function (name) {
@@ -6507,10 +6652,6 @@ function parseStyle (vnode) {
         Object.assign(styles, cssMap[name]);
       }
     });
-
-    for (var key in styles) {
-      styles[key] = trimCSSUnit(styles[key]);
-    }
     return styles
   }
 }
@@ -6538,7 +6679,6 @@ function convertVNodeChildren (children) {
           props.events = vnode.data.on;
         }
       }
-
       if (type === 'span' && isSimpleSpan(vnode)) {
         props.attr = props.attr || {};
         props.attr.value = vnode.children[0].text.trim();
@@ -6556,7 +6696,6 @@ function convertVNodeChildren (children) {
 
 var Richtext = {
   name: 'richtext',
-  // abstract: true,
   render: function render (h) {
     return h('weex:richtext', {
       on: this._events,
@@ -6645,7 +6784,7 @@ var Transition$1 = {
   render: function render (h) {
     var this$1 = this;
 
-    var children = this.$options._renderChildren;
+    var children = this.$slots.default;
     if (!children) {
       return
     }
@@ -6724,7 +6863,9 @@ var Transition$1 = {
       oldChild &&
       oldChild.data &&
       !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild)
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
     ) {
       // replace old child transition data with fresh one
       // important for dynamic transitions!
@@ -6928,7 +7069,7 @@ var canBeLeftOpenTag = makeMap(
 );
 
 var isRuntimeComponent = makeMap(
-  'richtext,trisition,trisition-group',
+  'richtext,transition,transition-group',
   true
 );
 
diff --git a/packages/weex-vue-framework/index.js b/packages/weex-vue-framework/index.js
index acd095ebcb1..04b1efa99c6 100644
--- a/packages/weex-vue-framework/index.js
+++ b/packages/weex-vue-framework/index.js
@@ -125,59 +125,6 @@ function getRoot (instanceId) {
   return instance.app.$el.toJSON()
 }
 
-var jsHandlers = {
-  fireEvent: function (id) {
-    var args = [], len = arguments.length - 1;
-    while ( len-- > 0 ) args[ len ] = arguments[ len + 1 ];
-
-    return fireEvent.apply(void 0, [ instances[id] ].concat( args ))
-  },
-  callback: function (id) {
-    var args = [], len = arguments.length - 1;
-    while ( len-- > 0 ) args[ len ] = arguments[ len + 1 ];
-
-    return callback.apply(void 0, [ instances[id] ].concat( args ))
-  }
-};
-
-function fireEvent (instance, nodeId, type, e, domChanges) {
-  var el = instance.document.getRef(nodeId);
-  if (el) {
-    return instance.document.fireEvent(el, type, e, domChanges)
-  }
-  return new Error(("invalid element reference \"" + nodeId + "\""))
-}
-
-function callback (instance, callbackId, data, ifKeepAlive) {
-  var result = instance.document.taskCenter.callback(callbackId, data, ifKeepAlive);
-  instance.document.taskCenter.send('dom', { action: 'updateFinish' }, []);
-  return result
-}
-
-/**
- * Accept calls from native (event or callback).
- *
- * @param  {string} id
- * @param  {array} tasks list with `method` and `args`
- */
-function receiveTasks (id, tasks) {
-  var instance = instances[id];
-  if (instance && Array.isArray(tasks)) {
-    var results = [];
-    tasks.forEach(function (task) {
-      var handler = jsHandlers[task.method];
-      var args = [].concat( task.args );
-      /* istanbul ignore else */
-      if (typeof handler === 'function') {
-        args.unshift(id);
-        results.push(handler.apply(void 0, args));
-      }
-    });
-    return results
-  }
-  return new Error(("invalid instance id \"" + id + "\" or tasks"))
-}
-
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
@@ -309,4 +256,3 @@ exports.createInstance = createInstance;
 exports.destroyInstance = destroyInstance;
 exports.refreshInstance = refreshInstance;
 exports.getRoot = getRoot;
-exports.receiveTasks = receiveTasks;

From d4e0c3ef2444384719638a89f2a25af042b95795 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Nov 2017 12:43:32 -0500
Subject: [PATCH 275/911] build: release 2.5.9

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index bb9763d321a..77ce83f23ab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.8",
+  "version": "2.5.9",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 5fd5bb9a783..2713abb2441 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.8",
+  "version": "2.5.9",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From f5ce6b50cffef2e0eb8895c462b2433d8f8a701f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Nov 2017 16:54:15 -0500
Subject: [PATCH 276/911] fix(v-for): support array and nested destructuring in
 v-for

---
 src/compiler/parser/index.js              | 14 ++---
 test/unit/features/directives/for.spec.js | 10 ++-
 test/unit/modules/compiler/parser.spec.js | 76 +++++++++++++++++++++++
 3 files changed, 92 insertions(+), 8 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index e971524e21b..7f9bc1b57e5 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -22,7 +22,7 @@ import {
 export const onRE = /^@|^v-on:/
 export const dirRE = /^v-|^@|^:/
 export const forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/
-export const forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/
+export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
 
 const argRE = /:(.*)$/
@@ -356,16 +356,16 @@ export function processFor (el: ASTElement) {
       return
     }
     el.for = inMatch[2].trim()
-    const alias = inMatch[1].trim()
+    const alias = inMatch[1].trim().replace(stripParensRE, '')
     const iteratorMatch = alias.match(forIteratorRE)
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim()
-      el.iterator1 = iteratorMatch[2].trim()
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim()
+      el.alias = alias.replace(forIteratorRE, '')
+      el.iterator1 = iteratorMatch[1].trim()
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim()
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '')
+      el.alias = alias
     }
   }
 }
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index 9f778b93bf6..ec270ca9cc2 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -472,12 +472,20 @@ describe('Directive v-for', () => {
   })()
 
   if (supportsDestructuring) {
-    it('should support destructuring syntax in alias position', () => {
+    it('should support destructuring syntax in alias position (object)', () => {
       const vm = new Vue({
         data: { list: [{ foo: 'hi', bar: 'ho' }] },
         template: '<div><div v-for="({ foo, bar }, i) in list">{{ foo }} {{ bar }} {{ i }}</div></div>'
       }).$mount()
       expect(vm.$el.textContent).toBe('hi ho 0')
     })
+
+    it('should support destructuring syntax in alias position (array)', () => {
+      const vm = new Vue({
+        data: { list: [[1, 2], [3, 4]] },
+        template: '<div><div v-for="([ foo, bar ], i) in list">{{ foo }} {{ bar }} {{ i }}</div></div>'
+      }).$mount()
+      expect(vm.$el.textContent).toBe('1 2 03 4 1')
+    })
   }
 })
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 4957da1cb77..11acb66014d 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -314,12 +314,88 @@ describe('parser', () => {
     expect(liAst.alias).toBe('{ foo }')
     expect(liAst.iterator1).toBe('i')
 
+    // with key + index
+    ast = parse('<ul><li v-for="({ foo }, i, j) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo }')
+    expect(liAst.iterator1).toBe('i')
+    expect(liAst.iterator2).toBe('j')
+
     // multi-var destructuring with index
     ast = parse('<ul><li v-for="({ foo, bar, baz }, i) in items"></li></ul>', baseOptions)
     liAst = ast.children[0]
     expect(liAst.for).toBe('items')
     expect(liAst.alias).toBe('{ foo, bar, baz }')
     expect(liAst.iterator1).toBe('i')
+
+    // array
+    ast = parse('<ul><li v-for="[ foo ] in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo ]')
+
+    // multi-array
+    ast = parse('<ul><li v-for="[ foo, bar, baz ] in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo, bar, baz ]')
+
+    // array with paren
+    ast = parse('<ul><li v-for="([ foo ]) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo ]')
+
+    // multi-array with paren
+    ast = parse('<ul><li v-for="([ foo, bar, baz ]) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo, bar, baz ]')
+
+    // array with index
+    ast = parse('<ul><li v-for="([ foo ], i) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo ]')
+    expect(liAst.iterator1).toBe('i')
+
+    // array with key + index
+    ast = parse('<ul><li v-for="([ foo ], i, j) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo ]')
+    expect(liAst.iterator1).toBe('i')
+    expect(liAst.iterator2).toBe('j')
+
+    // multi-array with paren
+    ast = parse('<ul><li v-for="([ foo, bar, baz ]) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo, bar, baz ]')
+
+    // multi-array with index
+    ast = parse('<ul><li v-for="([ foo, bar, baz ], i) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo, bar, baz ]')
+    expect(liAst.iterator1).toBe('i')
+
+    // nested
+    ast = parse('<ul><li v-for="({ foo, bar: { baz }, qux: [ n ] }, i, j) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('{ foo, bar: { baz }, qux: [ n ] }')
+    expect(liAst.iterator1).toBe('i')
+    expect(liAst.iterator2).toBe('j')
+
+    // array nested
+    ast = parse('<ul><li v-for="([ foo, { bar }, baz ], i, j) in items"></li></ul>', baseOptions)
+    liAst = ast.children[0]
+    expect(liAst.for).toBe('items')
+    expect(liAst.alias).toBe('[ foo, { bar }, baz ]')
+    expect(liAst.iterator1).toBe('i')
+    expect(liAst.iterator2).toBe('j')
   })
 
   it('v-for directive invalid syntax', () => {

From 7e46683470e06e93fec338dbaedb201f9b79b4d1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 28 Nov 2017 15:10:08 -0500
Subject: [PATCH 277/911] refactor: simplify internal component creation

---
 flow/options.js                   |  4 ----
 src/core/instance/init.js         | 14 +++++++++-----
 src/core/vdom/create-component.js |  7 +------
 3 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/flow/options.js b/flow/options.js
index aa87fceb836..3ae6509df6f 100644
--- a/flow/options.js
+++ b/flow/options.js
@@ -1,11 +1,7 @@
 declare type InternalComponentOptions = {
   _isComponent: true;
   parent: Component;
-  propsData: ?Object;
   _parentVnode: VNode;
-  _parentListeners: ?Object;
-  _renderChildren: ?Array<VNode>;
-  _componentTag: ?string;
   _parentElm: ?Node;
   _refElm: ?Node;
   render?: Function;
diff --git a/src/core/instance/init.js b/src/core/instance/init.js
index f4b4db5742a..1a60cc4f99f 100644
--- a/src/core/instance/init.js
+++ b/src/core/instance/init.js
@@ -74,14 +74,18 @@ export function initMixin (Vue: Class<Component>) {
 function initInternalComponent (vm: Component, options: InternalComponentOptions) {
   const opts = vm.$options = Object.create(vm.constructor.options)
   // doing this because it's faster than dynamic enumeration.
+  const parentVnode = options._parentVnode
   opts.parent = options.parent
-  opts.propsData = options.propsData
-  opts._parentVnode = options._parentVnode
-  opts._parentListeners = options._parentListeners
-  opts._renderChildren = options._renderChildren
-  opts._componentTag = options._componentTag
+  opts._parentVnode = parentVnode
   opts._parentElm = options._parentElm
   opts._refElm = options._refElm
+
+  const vnodeComponentOptions = parentVnode.componentOptions
+  opts.propsData = vnodeComponentOptions.propsData
+  opts._parentListeners = vnodeComponentOptions.listeners
+  opts._renderChildren = vnodeComponentOptions.children
+  opts._componentTag = vnodeComponentOptions.tag
+
   if (options.render) {
     opts.render = options.render
     opts.staticRenderFns = options.staticRenderFns
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index d3de4fb4c20..905c37ed216 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -200,15 +200,10 @@ export function createComponentInstanceForVnode (
   parentElm?: ?Node,
   refElm?: ?Node
 ): Component {
-  const vnodeComponentOptions = vnode.componentOptions
   const options: InternalComponentOptions = {
     _isComponent: true,
     parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   }
@@ -218,7 +213,7 @@ export function createComponentInstanceForVnode (
     options.render = inlineTemplate.render
     options.staticRenderFns = inlineTemplate.staticRenderFns
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data: VNodeData) {

From 60da366a2653a3984d79331d02ebb2ecf7e73a9a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 30 Nov 2017 10:48:37 -0500
Subject: [PATCH 278/911] fix: should not update in-focus input value with lazy
 modifier

fix #7153
---
 .../web/runtime/modules/dom-props.js          | 24 ++++++++++++-------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index c6ba3d0e924..f3888aed066 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -56,12 +56,12 @@ type acceptValueElm = HTMLInputElement | HTMLSelectElement | HTMLOptionElement;
 function shouldUpdateValue (elm: acceptValueElm, checkVal: string): boolean {
   return (!elm.composing && (
     elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
   ))
 }
 
-function isDirty (elm: acceptValueElm, checkVal: string): boolean {
+function isNotInFocusAndDirty (elm: acceptValueElm, checkVal: string): boolean {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
   let notInFocus = true
@@ -71,14 +71,20 @@ function isDirty (elm: acceptValueElm, checkVal: string): boolean {
   return notInFocus && elm.value !== checkVal
 }
 
-function isInputChanged (elm: any, newVal: string): boolean {
+function isDirtyWithModifiers (elm: any, newVal: string): boolean {
   const value = elm.value
   const modifiers = elm._vModifiers // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
   }
   return value !== newVal
 }

From a6bf97d73adb806bed2cea7229df96cef0f7f362 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8B=BC=E6=97=8F=E5=B0=8F=E7=8B=88?= <1340641314@qq.com>
Date: Fri, 1 Dec 2017 00:34:45 +0800
Subject: [PATCH 279/911] chore: tweak logo alt in README.md (#7156)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index bae6837b164..526b4b2388b 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-<p align="center"><a href="https://vuejs.org" target="_blank"><img width="100"src="https://vuejs.org/images/logo.png"></a></p>
+<p align="center"><a href="https://vuejs.org" target="_blank"><img width="100" src="https://vuejs.org/images/logo.png" alt="Vue logo"></a></p>
 
 <p align="center">
   <a href="https://circleci.com/gh/vuejs/vue/tree/dev"><img src="https://img.shields.io/circleci/project/vuejs/vue/dev.svg" alt="Build Status"></a>

From 7166c4e8753fdb8cade6a922b958813383548107 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Dec 2017 09:26:22 -0500
Subject: [PATCH 280/911] chore: update sponsors

---
 BACKERS.md | 39 ++++++++++++++++++++++++++-------------
 README.md  | 39 ++++++++++++++++++++++++++-------------
 2 files changed, 52 insertions(+), 26 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 951ec5d738b..0cda441720c 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -13,19 +13,32 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Platinum via Patreon</h2>
 
-<p align="center">
-  <a href="https://stdlib.com">
-    <img width="300px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
-  </a>
-  <br><br>
-  <a href="https://xiaozhuanlan.com">
-    <img width="200px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
-  </a>
-  <br><br>
-  <a href="http://tooltwist.com" target="_blank">
-    <img width="280px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
-  </a>
-</p>
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://stdlib.com">
+          <img width="220px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+        </a>
+      </td>
+      <td>
+        <a href="https://xiaozhuanlan.com">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+        </a>
+      </td>
+      <td>
+        <a href="http://tooltwist.com" target="_blank">
+          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+        </a>
+      </td>
+      <td>
+        <a href="https://www.infinitynewtab.com/donate/index.html" target="_blank">
+          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/infinitynewtab.png">
+        </a>
+      </td>
+    </tr>
+  </tbody>
+</table>
 
 <h2 align="center">Platinum via OpenCollective</h2>
 
diff --git a/README.md b/README.md
index 526b4b2388b..7910db58487 100644
--- a/README.md
+++ b/README.md
@@ -26,19 +26,32 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h4 align="center">Platinum</h4>
 
-<p align="center">
-  <a href="https://stdlib.com">
-    <img width="240px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
-  </a>
-  <br><br>
-  <a href="https://xiaozhuanlan.com">
-    <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
-  </a>
-  <br><br>
-  <a href="http://tooltwist.com" target="_blank">
-    <img width="220px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
-  </a>
-</p>
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://stdlib.com">
+          <img width="220px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+        </a>
+      </td>
+      <td>
+        <a href="https://xiaozhuanlan.com">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+        </a>
+      </td>
+      <td>
+        <a href="http://tooltwist.com" target="_blank">
+          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+        </a>
+      </td>
+      <td>
+        <a href="https://www.infinitynewtab.com/donate/index.html" target="_blank">
+          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/infinitynewtab.png">
+        </a>
+      </td>
+    </tr>
+  </tbody>
+</table>
 
 <h4 align="center">Gold</h4>
 

From 0da8bced77654beb14c39ff3b4543b2ef37d1aff Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 4 Dec 2017 22:58:46 +0800
Subject: [PATCH 281/911] fix(weex): send createFinish signal after root
 component mounted (#7154)

---
 src/platforms/weex/entry-framework.js | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 9b7c920cfbd..f5352867d05 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -61,12 +61,8 @@ export function createInstance (
   }, timerAPIs, env.services)
 
   appCode = `(function(global){ \n${appCode}\n })(Object.create(this))`
-
   callFunction(instanceVars, appCode)
 
-  // Send `createFinish` signal to native.
-  document.taskCenter.send('dom', { action: 'createFinish' }, [])
-
   return instance
 }
 
@@ -208,6 +204,16 @@ function createVueModuleInstance (instanceId, weex) {
         // record instance by id
         instance.app = this
       }
+    },
+    mounted () {
+      const options = this.$options
+      // root component (vm)
+      if (options.el && weex.document) {
+        try {
+          // Send "createFinish" signal to native.
+          weex.document.taskCenter.send('dom', { action: 'createFinish' }, [])
+        } catch (e) {}
+      }
     }
   })
 

From 5875c7c4906873c31b2feb66bb3ab6a19af6f5d7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Dec 2017 11:17:36 -0500
Subject: [PATCH 282/911] fix: revert shared static tree cache to avoid memory
 leak

revert f0a66c5
fix #7184
---
 src/compiler/codegen/index.js                 | 10 ++++------
 .../instance/render-helpers/render-static.js  | 20 +++++++------------
 test/unit/modules/compiler/codegen.spec.js    |  4 ++--
 3 files changed, 13 insertions(+), 21 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 7b8a1826d7a..e031e15b053 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -86,15 +86,13 @@ export function genElement (el: ASTElement, state: CodegenState): string {
 }
 
 // hoist static sub-trees out
-function genStatic (el: ASTElement, state: CodegenState, once: ?boolean): string {
+function genStatic (el: ASTElement, state: CodegenState): string {
   el.staticProcessed = true
   state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`)
   return `_m(${
     state.staticRenderFns.length - 1
-  },${
-    el.staticInFor ? 'true' : 'false'
-  },${
-    once ? 'true' : 'false'
+  }${
+    el.staticInFor ? ',true' : ''
   })`
 }
 
@@ -121,7 +119,7 @@ function genOnce (el: ASTElement, state: CodegenState): string {
     }
     return `_o(${genElement(el, state)},${state.onceId++},${key})`
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
diff --git a/src/core/instance/render-helpers/render-static.js b/src/core/instance/render-helpers/render-static.js
index d80311e5604..a26abbb6ee9 100644
--- a/src/core/instance/render-helpers/render-static.js
+++ b/src/core/instance/render-helpers/render-static.js
@@ -7,19 +7,9 @@ import { cloneVNode, cloneVNodes } from 'core/vdom/vnode'
  */
 export function renderStatic (
   index: number,
-  isInFor: boolean,
-  isOnce: boolean
+  isInFor: boolean
 ): VNode | Array<VNode> {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  const isOldVersion = arguments.length < 3
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  const renderFns = this.$options.staticRenderFns
-  const cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []))
+  const cached = this._staticTrees || (this._staticTrees = [])
   let tree = cached[index]
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -29,7 +19,11 @@ export function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this)
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  )
   markStatic(tree, `__static__${index}`, false)
   return tree
 }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 5e042668fd7..d8b6c7e6839 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -478,7 +478,7 @@ describe('codegen', () => {
     // have "inline-template'"
     assertCodegen(
       '<my-component inline-template><p><span>hello world</span></p></my-component>',
-      `with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _m(0,false,false)}},staticRenderFns:[function(){with(this){return _c('p',[_c('span',[_v("hello world")])])}}]}})}`
+      `with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _m(0)}},staticRenderFns:[function(){with(this){return _c('p',[_c('span',[_v("hello world")])])}}]}})}`
     )
     // "have inline-template attrs, but not having exactly one child element
     assertCodegen(
@@ -498,7 +498,7 @@ describe('codegen', () => {
   it('generate static trees inside v-for', () => {
     assertCodegen(
       `<div><div v-for="i in 10"><p><span></span></p></div></div>`,
-      `with(this){return _c('div',_l((10),function(i){return _c('div',[_m(0,true,false)])}))}`,
+      `with(this){return _c('div',_l((10),function(i){return _c('div',[_m(0,true)])}))}`,
       [`with(this){return _c('p',[_c('span')])}`]
     )
   })

From 904d9c9a819abf8ee503a068fd47ec7c673924d1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Dec 2017 11:20:33 -0500
Subject: [PATCH 283/911] test: fix weex test case

---
 test/weex/compiler/compile.spec.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/weex/compiler/compile.spec.js b/test/weex/compiler/compile.spec.js
index cd69c7414d9..7a717f19146 100644
--- a/test/weex/compiler/compile.spec.js
+++ b/test/weex/compiler/compile.spec.js
@@ -32,12 +32,12 @@ describe('compile basic', () => {
 
   it('should compile unary tag', () => {
     const inputCase = compile(`<div><input><text>abc</text></div>`)
-    expect(inputCase.render).toMatch(strToRegExp(`return _m(0,false,false)`))
+    expect(inputCase.render).toMatch(strToRegExp(`return _m(0)`))
     expect(inputCase.staticRenderFns).toMatch(strToRegExp(`_c('div',[_c('input'),_c('text',[_v("abc")])])`))
     expect(inputCase.errors).toEqual([])
 
     const imageCase = compile(`<div><image src="path"><text>abc</text></div>`)
-    expect(imageCase.render).toMatch(strToRegExp(`return _m(0,false,false)`))
+    expect(imageCase.render).toMatch(strToRegExp(`return _m(0)`))
     expect(imageCase.staticRenderFns).toMatch(strToRegExp(`_c('div',[_c('image',{attrs:{"src":"path"}}),_c('text',[_v("abc")])])`))
     expect(imageCase.errors).toEqual([])
 
@@ -54,7 +54,7 @@ describe('compile basic', () => {
         </div>
       </div>
     `)
-    expect(complexCase.render).toMatch(strToRegExp(`return _m(0,false,false)`))
+    expect(complexCase.render).toMatch(strToRegExp(`return _m(0)`))
     expect(complexCase.staticRenderFns).toMatch(strToRegExp(`_c('image',{attrs:{"src":"path"}}),_c('image'),_c('div'`))
     expect(complexCase.staticRenderFns).toMatch(strToRegExp(`_c('div',[_c('embed'),_c('text',[_v("start")]),_c('input',{attrs:{"type":"text"}}),_c('input',{attrs:{"type":"url"}}),_c('text',[_v("end")])]`))
     expect(complexCase.errors).toEqual([])

From 6eccd8e4338c8eb32ab03813e3fb70f58f858f23 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Dec 2017 20:53:13 -0500
Subject: [PATCH 284/911] chore: update backers

---
 BACKERS.md | 184 ++++++++++++++---------------------------------------
 1 file changed, 47 insertions(+), 137 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 0cda441720c..88dee004705 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -287,215 +287,125 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Generous Backers via Patreon ($50+)</h2>
 
-- No Divide Studio
-- James Kyle
-- Blake Newman
-- Lee Smith
-- Adam Dorsey
-- Greg McCarvell
-- Yoshiya Hinosawa
+<!--50 start-->
 - Wasim Khamlichi
 - errorrik
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
-- Harri J Salomaa
+- HARRI J SALOMAA
+- tjkoury
+<!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
 
-- Sylvain Pollet-Villard
+<!--10 start-->
 - Luca Borghini
-- Kazuya Kawaguchi
-- Keisuke Kita
-- Anirudh Sanjeev
-- Guido Bertolino
-- Fábio Vedovelli
+- kazuya kawaguchi
+- Keisuke KITA
+- Fabio Vedovelli
 - Jack Barham
-- Stephane Demoote
-- Paul R. Dillinger
-- Sean Washington
-- Alun Davey
-- Eduardo Kyvenko
-- Thijs de Maa
-- Joris Noordermeer
-- Niklas Lifors
-- An Phan
-- Richard Wyke
-- Roman Kuba
+- Santa Cruz
 - Tom Conlon
-- Matt Pickle
 - Simon East
-- Bill Columbia
-- Hayden Bickerton
 - Henry Zhu
-- John Smith
 - Benjamin Listwon
-- Rainer Morgan
-- Brian Jorden
-- Christopher Dosin
 - Lars Andreas Ness
-- Drew Lustro
 - Victor Tolbert
-- Jon Pokrzyk
-- Frank Dungan III
-- Lanes.io
-- Anders
-- Dexter Miguel
-- Stephen Michael Hartley
+- Frank Dugan III
+- Stephen Hartley
 - Wen-Tien Chang
-- Ole Støvern
-- Valerian Cure
-- Dani Ilops
-- louisbl
-- Yegor Sytnyk
-- Guido H.
-- Joan Cejudo
-- Ian Walter
+- Chestnut Hill
 - Nikola Trifunovic
-- Nicolas Mutis Mesa
-- Fahed Toumi
-- James Brooks
 - Kirk Lewis
-- Spenser
-- Takuya Nishio
-- Daniel Diekmeier
-- Peter Thaleikis
-- Karol Fabjanczuk
-- Eduardo
-- Lê Chương
-- Webber Wang
-- Daniel Schmitz
-- Bruce Li
-- Mohammed
-- Sam Wainwright
-- TJ Hillard
-- Kyle Arrington
-- Jason Land
+- Karol F
 - Miljan Aleksic
-- James Ye
-- Laurids Duellmann
-- Christo Crampton
-- Adon Metcalfe
+- 叶解
 - Paul Straw
 - Jake Ingman
-- Eduardo Camillo
 - Barbara Liau
-- Jens Lind
-- Yegor Sytnyk
-- Benson Wong
-- Anthony Tsui
-- Karol Fabjanczuk
 - Isaac Sant
 - Milos Stojanovic
-- Matsumoto Takamasa
-- Douglas Lowder
-- Bess Brooks
+- 4
+- The Graphic Design School
 - Christian Griffith
-- Matt Rockwell
 - Jarek Tkaczyk
-- Michael Laccetti
-- Jonothan Allen
 - Andrew Davis
-- Jason Rys
-- Sean
-- Xiaojie Li
-- Joakim Bugge
-- Lacey Pevey
+- Sean MacIsaac
+- Xiaojie LI
 - David Hess
 - Niannian Modisette
-- Kim Cuartero
-- Luke Sampson
 - Dariusz Jastrzębski
-- Ivan Sieder
-- Jivan Roquet
-- Shane
-- Stew Heckenberg
 - Matt Jones
 - Dave Chenell
 - Frank Baele
-- Jack McDade
-- Patrick O'Dacre
-- Wietse Wind
-- Donny Donny
-- Duncan Kenzie
+- Cheng-Wei Chien
+- Duncan J Kenzie
 - Mike Margerum
-- Michael Richards
-- Eduardo Reveles
-- Jan Kremlacek
+- Cruz Eduardo Reveles Caldera
 - Guy Gavergun
-- Keith Bailey
-- Joel Birch
-- Bernhard E. Reiter
-- Radu Cretu
-- Luiz Tanure
-- Poamrong Rith
+- Edithvale
+- Intevation GmbH
+- Luiz Eduardo  Tanure Bacelar
+- Polo Rith
 - Chengzhi Yin
 - Dan Barrett
 - Zoran Knezevic
-- Charles Beaumont
-- Jonathan Kent
 - James Simpson
-- Pascal Germain
 - Pierre Vanhulst
 - Vincent Gabriel
-- Kyovo Digaw
-- devneko
-- Cheng-Wei Chien
+- Shinji Yamada
 - Michael Mazurczak
-- Daniel
 - Chris Anderson
 - Jon Hobbs-Smith
 - Chez Tschetter
 - Akiho Nagao
-- Alexander Karelas
 - Asaf Yishai
 - Diana Espino
 - Alexandre Madurell
-- alxs
-- Anthony Estebe
+- Estebe Anthony
 - Haim Yulzari
-- Blake Campbell
+- Blake Camobell
 - David McGuigan
-- Niklas Wallentin
 - Jeremy Tan
 - Jim Raden
 - Luka Savic
-- IMGNRY
-- Pascal Germain
-- Raphaël Saunier
-- Kirk Lewis
+- Fille Åström
 - Nicholas Reid
-- Tyler
-- Yong Jun Thong
-- Jonatan Machado
-- Tai Shi Ling
+- Tyler Scott
+- Thong Yong Jun
+- Tai Shi Lgin
 - Bryan Gruneberg
+- Roman Kuba
 - Matthew McMillion
-- Keith Mancuso
-- Alexander Karelas
+- Familiar Studio
 - Matias Verdier
 - Jamie McElwain
 - Travis Gertz
-- Ale Mohamad
-- Jonas Galvez
-- William Correa
-- Raphael Belvederese
+- Vivekanandhan Natarajan
+- Alejandro Mohamad
+- Rafael Belvederese
 - Mickaël Andrieu
 - Guilherme S L de Souza
 - Rob Yedlin
 - Daniel Waghorn
-- Eric Githinji
-- Vivekanandhan Natarajan
-- Chih-Hsuan Fan
+- Chih-Hsuan, Fan
 - Jordan Oroshiba
 - Brian Jorden
 - Cliff Hess
-- Joe Gregory
+- Joe Ray Gregory
 - Johnny Eshan
 - Alexander Karelas
 - Kamil Ocean
-- Orney Enrique Martinez Said
+- Orney Enrique martinez Said
 - Tom Striker
+- Oskar Lindgren
+- RADD Creative
+- Maegan Wilson
+- Rua Cura D'ars
+- Arthur Tyukayev
+- Richard Simpson
+<!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
 

From bd4819e6cf1c8d70d25aba2636e01f40faf59443 Mon Sep 17 00:00:00 2001
From: Guillaume Chau <alphadelta.fg@gmail.com>
Date: Wed, 6 Dec 2017 15:11:49 +0100
Subject: [PATCH 285/911] fix: data() should be called with vm as first
 argument in mixins

fix #7191
---
 src/core/util/options.js                |  8 +++----
 test/unit/features/options/data.spec.js | 30 ++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 5 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index ad36bb94151..945d43c69b8 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -85,18 +85,18 @@ export function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       const instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal
       const defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal
       if (instanceData) {
         return mergeData(instanceData, defaultData)
diff --git a/test/unit/features/options/data.spec.js b/test/unit/features/options/data.spec.js
index 29a48c38b44..cb8a75ad18d 100644
--- a/test/unit/features/options/data.spec.js
+++ b/test/unit/features/options/data.spec.js
@@ -107,7 +107,7 @@ describe('Options data', () => {
     expect(vm.a).toBe(1)
   })
 
-  it('should called with this', () => {
+  it('should be called with this', () => {
     const vm = new Vue({
       template: '<div><child></child></div>',
       provide: { foo: 1 },
@@ -123,4 +123,32 @@ describe('Options data', () => {
     }).$mount()
     expect(vm.$el.innerHTML).toBe('<span>foo:1</span>')
   })
+
+  it('should be called with vm as first argument when merged', () => {
+    const superComponent = {
+      data: ({ foo }) => ({ ext: 'ext:' + foo })
+    }
+    const mixins = [
+      {
+        data: ({ foo }) => ({ mixin1: 'm1:' + foo })
+      },
+      {
+        data: ({ foo }) => ({ mixin2: 'm2:' + foo })
+      }
+    ]
+    const vm = new Vue({
+      template: '<div><child></child></div>',
+      provide: { foo: 1 },
+      components: {
+        child: {
+          extends: superComponent,
+          mixins,
+          template: '<span>{{bar}}-{{ext}}-{{mixin1}}-{{mixin2}}</span>',
+          inject: ['foo'],
+          data: ({ foo }) => ({ bar: 'foo:' + foo })
+        }
+      }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe('<span>foo:1-ext:1-m1:1-m2:1</span>')
+  })
 })

From 644274cbd34e14e74e8931fa979b22dc2db04895 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 13:22:33 -0500
Subject: [PATCH 286/911] fix: more consistent component naming warnings across
 the API

close #7212
---
 src/core/global-api/assets.js | 12 +++---------
 src/core/global-api/extend.js | 12 +++---------
 src/core/util/options.js      | 25 ++++++++++++++++++-------
 3 files changed, 24 insertions(+), 25 deletions(-)

diff --git a/src/core/global-api/assets.js b/src/core/global-api/assets.js
index 2db49bfd3ed..d975a6a5977 100644
--- a/src/core/global-api/assets.js
+++ b/src/core/global-api/assets.js
@@ -1,8 +1,7 @@
 /* @flow */
 
-import config from '../config'
 import { ASSET_TYPES } from 'shared/constants'
-import { warn, isPlainObject } from '../util/index'
+import { isPlainObject, validateComponentName } from '../util/index'
 
 export function initAssetRegisters (Vue: GlobalAPI) {
   /**
@@ -17,13 +16,8 @@ export function initAssetRegisters (Vue: GlobalAPI) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production') {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            )
-          }
+        if (process.env.NODE_ENV !== 'production' && type === 'component') {
+          validateComponentName(id)
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id
diff --git a/src/core/global-api/extend.js b/src/core/global-api/extend.js
index c8035a3d1a4..c1bbda3f003 100644
--- a/src/core/global-api/extend.js
+++ b/src/core/global-api/extend.js
@@ -1,8 +1,8 @@
 /* @flow */
 
 import { ASSET_TYPES } from 'shared/constants'
-import { warn, extend, mergeOptions } from '../util/index'
 import { defineComputed, proxy } from '../instance/state'
+import { extend, mergeOptions, validateComponentName } from '../util/index'
 
 export function initExtend (Vue: GlobalAPI) {
   /**
@@ -26,14 +26,8 @@ export function initExtend (Vue: GlobalAPI) {
     }
 
     const name = extendOptions.name || Super.options.name
-    if (process.env.NODE_ENV !== 'production') {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        )
-      }
+    if (process.env.NODE_ENV !== 'production' && name) {
+      validateComponentName(name)
     }
 
     const Sub = function VueComponent (options) {
diff --git a/src/core/util/options.js b/src/core/util/options.js
index 945d43c69b8..c5c7fb25954 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -248,13 +248,24 @@ const defaultStrat = function (parentVal: any, childVal: any): any {
  */
 function checkComponents (options: Object) {
   for (const key in options.components) {
-    const lower = key.toLowerCase()
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      )
-    }
+    validateComponentName(key)
+  }
+}
+
+export function validateComponentName (name: string) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    )
+  }
+  const lower = name.toLowerCase()
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    )
   }
 }
 

From 023f171f58f7f1b36f0b3e69fc6d330366bfdf43 Mon Sep 17 00:00:00 2001
From: laoxiong <gebilaoxiong@gmail.com>
Date: Wed, 13 Dec 2017 05:38:32 +0800
Subject: [PATCH 287/911] fix(core): warn duplicate keys in all cases (#7200)

close #7199
---
 src/core/vdom/patch.js                        | 32 +++++++++++++++----
 .../unit/features/component/component.spec.js |  2 +-
 test/unit/modules/vdom/patch/children.spec.js | 23 +++++++++++++
 3 files changed, 49 insertions(+), 8 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 368eb41afc0..b5296db3c9d 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -263,6 +263,9 @@ export function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      if (process.env.NODE_ENV !== 'production') {
+        checkDuplicateKeys(children)
+      }
       for (let i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true)
       }
@@ -394,6 +397,10 @@ export function createPatchFunction (backend) {
     // during leaving transitions
     const canMove = !removeOnly
 
+    if (process.env.NODE_ENV !== 'production') {
+      checkDuplicateKeys(newCh)
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx] // Vnode has been moved left
@@ -426,13 +433,6 @@ export function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)
         } else {
           vnodeToMove = oldCh[idxInOld]
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            )
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue)
             oldCh[idxInOld] = undefined
@@ -453,6 +453,24 @@ export function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    const seenKeys = {}
+    for (let i = 0; i < children.length; i++) {
+      const vnode = children[i]
+      const key = vnode.key
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            `Duplicate keys detected: '${key}'. This may cause an update error.`,
+            vnode.context
+          )
+        } else {
+          seenKeys[key] = true
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (let i = start; i < end; i++) {
       const c = oldCh[i]
diff --git a/test/unit/features/component/component.spec.js b/test/unit/features/component/component.spec.js
index 52744c68bad..486a65033b0 100644
--- a/test/unit/features/component/component.spec.js
+++ b/test/unit/features/component/component.spec.js
@@ -166,7 +166,7 @@ describe('Component', () => {
     const vm = new Vue({
       template:
         '<div>' +
-          '<component v-for="c in comps" :key="c.type" :is="c.type"></component>' +
+          '<component v-for="(c, i) in comps" :key="i" :is="c.type"></component>' +
         '</div>',
       data: {
         comps: [{ type: 'one' }, { type: 'two' }]
diff --git a/test/unit/modules/vdom/patch/children.spec.js b/test/unit/modules/vdom/patch/children.spec.js
index 1bba91f11d2..ec4d521955c 100644
--- a/test/unit/modules/vdom/patch/children.spec.js
+++ b/test/unit/modules/vdom/patch/children.spec.js
@@ -507,4 +507,27 @@ describe('vdom patch: children', () => {
 
     expect(postPatch).toBe(original)
   })
+
+  it('should warn with duplicate keys: createChildren', () => {
+    function makeNode (key) {
+      return new VNode('div', { key: key })
+    }
+
+    const vnode = new VNode('p', {}, ['b', 'a', 'c', 'b'].map(makeNode))
+    patch(null, vnode)
+    expect(`Duplicate keys detected: 'b'`).toHaveBeenWarned()
+  })
+
+  it('should warn with duplicate keys: updateChildren', () => {
+    function makeNode (key) {
+      return new VNode('div', { key: key })
+    }
+
+    const vnode2 = new VNode('p', {}, ['b', 'a', 'c', 'b'].map(makeNode))
+    const vnode3 = new VNode('p', {}, ['b', 'x', 'd', 'b'].map(makeNode))
+    patch(vnode0, vnode2)
+    expect(`Duplicate keys detected: 'b'`).toHaveBeenWarned()
+    patch(vnode2, vnode3)
+    expect(`Duplicate keys detected: 'b'`).toHaveBeenWarned()
+  })
 })

From 73a89bf9e53c0f7f00f193e1b1bb195a71ab761f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20B=C3=BCnemann?= <Felix.Buenemann@gmail.com>
Date: Tue, 12 Dec 2017 23:06:11 +0100
Subject: [PATCH 288/911] fix(ssr): fix double escaping of ssrNode attribute
 values (#7224)

This fixes a double escaping of attribute values in the SSR optimizing
compiler by unescaping the value in `genAttrSegment` because literal
attribute values get escaped early during `processAttrs` before it is
known, if this attribute will be optimized to an _ssrNode string template,
which is escaped as well, causing the double escape.

fix #7223
---
 src/server/optimizing-compiler/modules.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/server/optimizing-compiler/modules.js b/src/server/optimizing-compiler/modules.js
index 41b1af1d9d2..69a7be87390 100644
--- a/src/server/optimizing-compiler/modules.js
+++ b/src/server/optimizing-compiler/modules.js
@@ -77,7 +77,7 @@ function genAttrSegment (name: string, value: string): StringSegment {
         ? ` ${name}="${name}"`
         : value === '""'
           ? ` ${name}`
-          : ` ${name}=${value}`
+          : ` ${name}="${JSON.parse(value)}"`
     }
   } else {
     return {

From 86e4d7566e685f1a98ffab1777fa7d07603c994a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 17:07:28 -0500
Subject: [PATCH 289/911] test: add test case for #7223

---
 test/ssr/ssr-string.spec.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 3e8470f9250..689bc144010 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1112,6 +1112,20 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  // #7223
+  it('should not double escape attribute values', done => {
+    renderVmWithOptions({
+      template: `
+      <div>
+        <div id="a\nb"></div>
+      </div>
+      `
+    }, result => {
+      expect(result).toContain(`<div id="a\nb"></div>`)
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 8936b8d9c147441555fcfd4ac748d817ba5ff60e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 18:12:02 -0500
Subject: [PATCH 290/911] fix(ssr): properly handle errors in async component

fix #6778
---
 src/server/create-renderer.js |  8 ++++++--
 src/server/render-context.js  |  2 +-
 src/server/render.js          | 11 ++++-------
 test/ssr/ssr-string.spec.js   | 19 +++++++++++++++++++
 4 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/src/server/create-renderer.js b/src/server/create-renderer.js
index 8be2c449681..c045a426fe6 100644
--- a/src/server/create-renderer.js
+++ b/src/server/create-renderer.js
@@ -78,11 +78,15 @@ export function createRenderer ({
         return false
       }, cb)
       try {
-        render(component, write, context, () => {
+        render(component, write, context, err => {
           if (template) {
             result = templateRenderer.renderSync(result, context)
           }
-          cb(null, result)
+          if (err) {
+            cb(err)
+          } else {
+            cb(null, result)
+          }
         })
       } catch (e) {
         cb(e)
diff --git a/src/server/render-context.js b/src/server/render-context.js
index d75fdc8cf76..cecb00157d7 100644
--- a/src/server/render-context.js
+++ b/src/server/render-context.js
@@ -26,7 +26,7 @@ export class RenderContext {
   write: (text: string, next: Function) => void;
   renderNode: (node: VNode, isRoot: boolean, context: RenderContext) => void;
   next: () => void;
-  done: () => void;
+  done: (err: ?Error) => void;
 
   modules: Array<(node: VNode) => ?string>;
   directives: Object;
diff --git a/src/server/render.js b/src/server/render.js
index 0400aa7f3b5..150afce077d 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -193,21 +193,18 @@ function renderAsyncComponent (node, isRoot, context) {
     if (resolvedNode) {
       renderComponent(resolvedNode, isRoot, context)
     } else {
-      reject()
+      // invalid component, but this does not throw on the client
+      // so render empty comment node
+      context.write(`<!---->`, context.next)
     }
   }
 
-  const reject = err => {
-    console.error(`[vue-server-renderer] error when rendering async component:\n`)
-    if (err) console.error(err.stack)
-    context.write(`<!--${node.text}-->`, context.next)
-  }
-
   if (factory.resolved) {
     resolve(factory.resolved)
     return
   }
 
+  const reject = context.done
   let res
   try {
     res = factory(resolve, reject)
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 689bc144010..66ed897ce72 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -575,6 +575,25 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('should catch async component error', done => {
+    Vue.config.silent = true
+    renderToString(new Vue({
+      template: '<test-async></test-async>',
+      components: {
+        testAsync: () => Promise.resolve({
+          render () {
+            throw new Error('foo')
+          }
+        })
+      }
+    }), (err, result) => {
+      Vue.config.silent = false
+      expect(err).toBeTruthy()
+      expect(result).toBeUndefined()
+      done()
+    })
+  })
+
   it('everything together', done => {
     renderVmWithOptions({
       template: `

From 711aaf71bb126fb5a0dd3ab032a7793a74918f02 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 18:16:39 -0500
Subject: [PATCH 291/911] build: build 2.5.10

---
 dist/vue.common.js                          | 173 +++++++++++---------
 dist/vue.esm.js                             | 173 +++++++++++---------
 dist/vue.js                                 | 173 +++++++++++---------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  | 153 +++++++++--------
 dist/vue.runtime.esm.js                     | 153 +++++++++--------
 dist/vue.runtime.js                         | 153 +++++++++--------
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       |  93 +++++------
 packages/vue-server-renderer/build.js       | 101 ++++++------
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  32 ++--
 packages/vue-template-compiler/build.js     |  32 ++--
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 676 insertions(+), 572 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index e0418ccc95b..09c43ffeeb7 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1149,18 +1149,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1312,13 +1312,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3814,19 +3825,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3836,7 +3837,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4188,15 +4193,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -4206,7 +4206,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -4540,14 +4540,18 @@ function initMixin (Vue) {
 function initInternalComponent (vm, options) {
   var opts = vm.$options = Object.create(vm.constructor.options);
   // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
   opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
+  opts._parentVnode = parentVnode;
   opts._parentElm = options._parentElm;
   opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
   if (options.render) {
     opts.render = options.render;
     opts.staticRenderFns = options.staticRenderFns;
@@ -4681,14 +4685,8 @@ function initExtend (Vue) {
     }
 
     var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production') {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
+    if (process.env.NODE_ENV !== 'production' && name) {
+      validateComponentName(name);
     }
 
     var Sub = function VueComponent (options) {
@@ -4770,13 +4768,8 @@ function initAssetRegisters (Vue) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production') {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
+        if (process.env.NODE_ENV !== 'production' && type === 'component') {
+          validateComponentName(id);
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id;
@@ -4983,7 +4976,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.9';
+Vue$3.version = '2.5.10';
 
 /*  */
 
@@ -5551,6 +5544,9 @@ function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      if (process.env.NODE_ENV !== 'production') {
+        checkDuplicateKeys(children);
+      }
       for (var i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
@@ -5682,6 +5678,10 @@ function createPatchFunction (backend) {
     // during leaving transitions
     var canMove = !removeOnly;
 
+    if (process.env.NODE_ENV !== 'production') {
+      checkDuplicateKeys(newCh);
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
@@ -5714,13 +5714,6 @@ function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
           vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
@@ -5741,6 +5734,24 @@ function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (var i = start; i < end; i++) {
       var c = oldCh[i];
@@ -6997,12 +7008,12 @@ function updateDOMProps (oldVnode, vnode) {
 function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
     elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
   ))
 }
 
-function isDirty (elm, checkVal) {
+function isNotInFocusAndDirty (elm, checkVal) {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
   var notInFocus = true;
@@ -7012,14 +7023,20 @@ function isDirty (elm, checkVal) {
   return notInFocus && elm.value !== checkVal
 }
 
-function isInputChanged (elm, newVal) {
+function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
   }
   return value !== newVal
 }
@@ -8857,7 +8874,7 @@ function parseHTML (html, options) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
@@ -9190,16 +9207,16 @@ function processFor (el) {
       return
     }
     el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
     var iteratorMatch = alias.match(forIteratorRE);
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
+      el.alias = alias.replace(forIteratorRE, '');
+      el.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim();
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '');
+      el.alias = alias;
     }
   }
 }
@@ -9948,10 +9965,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -9977,7 +9994,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index c2fc746aa94..d90ff57f7e5 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1147,18 +1147,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1310,13 +1310,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3812,19 +3823,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3834,7 +3835,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4186,15 +4191,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -4204,7 +4204,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -4538,14 +4538,18 @@ function initMixin (Vue) {
 function initInternalComponent (vm, options) {
   var opts = vm.$options = Object.create(vm.constructor.options);
   // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
   opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
+  opts._parentVnode = parentVnode;
   opts._parentElm = options._parentElm;
   opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
   if (options.render) {
     opts.render = options.render;
     opts.staticRenderFns = options.staticRenderFns;
@@ -4679,14 +4683,8 @@ function initExtend (Vue) {
     }
 
     var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production') {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
+    if (process.env.NODE_ENV !== 'production' && name) {
+      validateComponentName(name);
     }
 
     var Sub = function VueComponent (options) {
@@ -4768,13 +4766,8 @@ function initAssetRegisters (Vue) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production') {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
+        if (process.env.NODE_ENV !== 'production' && type === 'component') {
+          validateComponentName(id);
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id;
@@ -4981,7 +4974,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.9';
+Vue$3.version = '2.5.10';
 
 /*  */
 
@@ -5549,6 +5542,9 @@ function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      if (process.env.NODE_ENV !== 'production') {
+        checkDuplicateKeys(children);
+      }
       for (var i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
@@ -5680,6 +5676,10 @@ function createPatchFunction (backend) {
     // during leaving transitions
     var canMove = !removeOnly;
 
+    if (process.env.NODE_ENV !== 'production') {
+      checkDuplicateKeys(newCh);
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
@@ -5712,13 +5712,6 @@ function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
           vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
@@ -5739,6 +5732,24 @@ function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (var i = start; i < end; i++) {
       var c = oldCh[i];
@@ -6995,12 +7006,12 @@ function updateDOMProps (oldVnode, vnode) {
 function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
     elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
   ))
 }
 
-function isDirty (elm, checkVal) {
+function isNotInFocusAndDirty (elm, checkVal) {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
   var notInFocus = true;
@@ -7010,14 +7021,20 @@ function isDirty (elm, checkVal) {
   return notInFocus && elm.value !== checkVal
 }
 
-function isInputChanged (elm, newVal) {
+function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
   }
   return value !== newVal
 }
@@ -8855,7 +8872,7 @@ function parseHTML (html, options) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
@@ -9188,16 +9205,16 @@ function processFor (el) {
       return
     }
     el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
     var iteratorMatch = alias.match(forIteratorRE);
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
+      el.alias = alias.replace(forIteratorRE, '');
+      el.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim();
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '');
+      el.alias = alias;
     }
   }
 }
@@ -9946,10 +9963,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -9975,7 +9992,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
diff --git a/dist/vue.js b/dist/vue.js
index bef5cbf43fa..b8853ada646 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1153,18 +1153,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1316,13 +1316,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3810,19 +3821,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3832,7 +3833,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4184,15 +4189,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -4202,7 +4202,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -4529,14 +4529,18 @@ function initMixin (Vue) {
 function initInternalComponent (vm, options) {
   var opts = vm.$options = Object.create(vm.constructor.options);
   // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
   opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
+  opts._parentVnode = parentVnode;
   opts._parentElm = options._parentElm;
   opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
   if (options.render) {
     opts.render = options.render;
     opts.staticRenderFns = options.staticRenderFns;
@@ -4670,14 +4674,8 @@ function initExtend (Vue) {
     }
 
     var name = extendOptions.name || Super.options.name;
-    {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
+    if ("development" !== 'production' && name) {
+      validateComponentName(name);
     }
 
     var Sub = function VueComponent (options) {
@@ -4759,13 +4757,8 @@ function initAssetRegisters (Vue) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
+        if ("development" !== 'production' && type === 'component') {
+          validateComponentName(id);
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id;
@@ -4972,7 +4965,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.9';
+Vue$3.version = '2.5.10';
 
 /*  */
 
@@ -5540,6 +5533,9 @@ function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
       for (var i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
@@ -5671,6 +5667,10 @@ function createPatchFunction (backend) {
     // during leaving transitions
     var canMove = !removeOnly;
 
+    {
+      checkDuplicateKeys(newCh);
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
@@ -5703,13 +5703,6 @@ function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
           vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if ("development" !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
@@ -5730,6 +5723,24 @@ function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (var i = start; i < end; i++) {
       var c = oldCh[i];
@@ -6986,12 +6997,12 @@ function updateDOMProps (oldVnode, vnode) {
 function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
     elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
   ))
 }
 
-function isDirty (elm, checkVal) {
+function isNotInFocusAndDirty (elm, checkVal) {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
   var notInFocus = true;
@@ -7001,14 +7012,20 @@ function isDirty (elm, checkVal) {
   return notInFocus && elm.value !== checkVal
 }
 
-function isInputChanged (elm, newVal) {
+function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
   }
   return value !== newVal
 }
@@ -8846,7 +8863,7 @@ function parseHTML (html, options) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
@@ -9179,16 +9196,16 @@ function processFor (el) {
       return
     }
     el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
     var iteratorMatch = alias.match(forIteratorRE);
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
+      el.alias = alias.replace(forIteratorRE, '');
+      el.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim();
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '');
+      el.alias = alias;
     }
   }
 }
@@ -9937,10 +9954,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -9966,7 +9983,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 94b22296c06..2334824b0ea 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Si.call(e)}function s(e){return"[object RegExp]"===Si.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 90370a24bad..54efb978064 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1145,18 +1145,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1308,13 +1308,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3810,19 +3821,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3832,7 +3833,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4184,15 +4189,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -4202,7 +4202,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -4536,14 +4536,18 @@ function initMixin (Vue) {
 function initInternalComponent (vm, options) {
   var opts = vm.$options = Object.create(vm.constructor.options);
   // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
   opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
+  opts._parentVnode = parentVnode;
   opts._parentElm = options._parentElm;
   opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
   if (options.render) {
     opts.render = options.render;
     opts.staticRenderFns = options.staticRenderFns;
@@ -4677,14 +4681,8 @@ function initExtend (Vue) {
     }
 
     var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production') {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
+    if (process.env.NODE_ENV !== 'production' && name) {
+      validateComponentName(name);
     }
 
     var Sub = function VueComponent (options) {
@@ -4766,13 +4764,8 @@ function initAssetRegisters (Vue) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production') {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
+        if (process.env.NODE_ENV !== 'production' && type === 'component') {
+          validateComponentName(id);
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id;
@@ -4979,7 +4972,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.9';
+Vue$3.version = '2.5.10';
 
 /*  */
 
@@ -5547,6 +5540,9 @@ function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      if (process.env.NODE_ENV !== 'production') {
+        checkDuplicateKeys(children);
+      }
       for (var i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
@@ -5678,6 +5674,10 @@ function createPatchFunction (backend) {
     // during leaving transitions
     var canMove = !removeOnly;
 
+    if (process.env.NODE_ENV !== 'production') {
+      checkDuplicateKeys(newCh);
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
@@ -5710,13 +5710,6 @@ function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
           vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
@@ -5737,6 +5730,24 @@ function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (var i = start; i < end; i++) {
       var c = oldCh[i];
@@ -6467,12 +6478,12 @@ function updateDOMProps (oldVnode, vnode) {
 function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
     elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
   ))
 }
 
-function isDirty (elm, checkVal) {
+function isNotInFocusAndDirty (elm, checkVal) {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
   var notInFocus = true;
@@ -6482,14 +6493,20 @@ function isDirty (elm, checkVal) {
   return notInFocus && elm.value !== checkVal
 }
 
-function isInputChanged (elm, newVal) {
+function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
   }
   return value !== newVal
 }
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 1f6f0de67f3..db70d8cc14b 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1143,18 +1143,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1306,13 +1306,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3808,19 +3819,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3830,7 +3831,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4182,15 +4187,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -4200,7 +4200,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -4534,14 +4534,18 @@ function initMixin (Vue) {
 function initInternalComponent (vm, options) {
   var opts = vm.$options = Object.create(vm.constructor.options);
   // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
   opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
+  opts._parentVnode = parentVnode;
   opts._parentElm = options._parentElm;
   opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
   if (options.render) {
     opts.render = options.render;
     opts.staticRenderFns = options.staticRenderFns;
@@ -4675,14 +4679,8 @@ function initExtend (Vue) {
     }
 
     var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production') {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
+    if (process.env.NODE_ENV !== 'production' && name) {
+      validateComponentName(name);
     }
 
     var Sub = function VueComponent (options) {
@@ -4764,13 +4762,8 @@ function initAssetRegisters (Vue) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production') {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
+        if (process.env.NODE_ENV !== 'production' && type === 'component') {
+          validateComponentName(id);
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id;
@@ -4977,7 +4970,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.9';
+Vue$3.version = '2.5.10';
 
 /*  */
 
@@ -5545,6 +5538,9 @@ function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      if (process.env.NODE_ENV !== 'production') {
+        checkDuplicateKeys(children);
+      }
       for (var i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
@@ -5676,6 +5672,10 @@ function createPatchFunction (backend) {
     // during leaving transitions
     var canMove = !removeOnly;
 
+    if (process.env.NODE_ENV !== 'production') {
+      checkDuplicateKeys(newCh);
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
@@ -5708,13 +5708,6 @@ function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
           vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
@@ -5735,6 +5728,24 @@ function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (var i = start; i < end; i++) {
       var c = oldCh[i];
@@ -6465,12 +6476,12 @@ function updateDOMProps (oldVnode, vnode) {
 function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
     elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
   ))
 }
 
-function isDirty (elm, checkVal) {
+function isNotInFocusAndDirty (elm, checkVal) {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
   var notInFocus = true;
@@ -6480,14 +6491,20 @@ function isDirty (elm, checkVal) {
   return notInFocus && elm.value !== checkVal
 }
 
-function isInputChanged (elm, newVal) {
+function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
   }
   return value !== newVal
 }
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 4b7698ef539..84f74643da2 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -1149,18 +1149,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1312,13 +1312,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3806,19 +3817,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3828,7 +3829,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -4180,15 +4185,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -4198,7 +4198,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -4525,14 +4525,18 @@ function initMixin (Vue) {
 function initInternalComponent (vm, options) {
   var opts = vm.$options = Object.create(vm.constructor.options);
   // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
   opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
+  opts._parentVnode = parentVnode;
   opts._parentElm = options._parentElm;
   opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
   if (options.render) {
     opts.render = options.render;
     opts.staticRenderFns = options.staticRenderFns;
@@ -4666,14 +4670,8 @@ function initExtend (Vue) {
     }
 
     var name = extendOptions.name || Super.options.name;
-    {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
+    if ("development" !== 'production' && name) {
+      validateComponentName(name);
     }
 
     var Sub = function VueComponent (options) {
@@ -4755,13 +4753,8 @@ function initAssetRegisters (Vue) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
+        if ("development" !== 'production' && type === 'component') {
+          validateComponentName(id);
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id;
@@ -4968,7 +4961,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.9';
+Vue$3.version = '2.5.10';
 
 /*  */
 
@@ -5536,6 +5529,9 @@ function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
       for (var i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
@@ -5667,6 +5663,10 @@ function createPatchFunction (backend) {
     // during leaving transitions
     var canMove = !removeOnly;
 
+    {
+      checkDuplicateKeys(newCh);
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
@@ -5699,13 +5699,6 @@ function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
           vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if ("development" !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
@@ -5726,6 +5719,24 @@ function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (var i = start; i < end; i++) {
       var c = oldCh[i];
@@ -6456,12 +6467,12 @@ function updateDOMProps (oldVnode, vnode) {
 function shouldUpdateValue (elm, checkVal) {
   return (!elm.composing && (
     elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
   ))
 }
 
-function isDirty (elm, checkVal) {
+function isNotInFocusAndDirty (elm, checkVal) {
   // return true when textbox (.number and .trim) loses focus and its value is
   // not equal to the updated value
   var notInFocus = true;
@@ -6471,14 +6482,20 @@ function isDirty (elm, checkVal) {
   return notInFocus && elm.value !== checkVal
 }
 
-function isInputChanged (elm, newVal) {
+function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
   }
   return value !== newVal
 }
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 0efc2b7777c..dae3590d8f8 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.9
+ * Vue.js v2.5.10
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return!1===t}function o(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function a(t){return"[object Object]"===Jn.call(t)}function s(t){return"[object RegExp]"===Jn.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return 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s=o.elm=r.elm;if(n(r.isAsyncPlaceholder))e(o.asyncFactory.resolved)?k(r.elm,o,i):o.isAsyncPlaceholder=!0;else if(n(o.isStatic)&&n(r.isStatic)&&o.key===r.key&&(n(o.isCloned)||n(o.isOnce)))o.componentInstance=r.componentInstance;else{var c,u=o.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,o);var l=r.children,f=o.children;if(e(u)&&h(o)){for(c=0;c<E.update.length;++c)E.update[c](r,o);e(c=u.hook)&&e(c=c.update)&&c(r,o)}t(o.text)?e(l)&&e(f)?l!==f&&w(s,l,f,i,a):e(f)?(e(r.text)&&I.setTextContent(s,""),_(s,null,f,0,f.length-1,i)):e(l)?b(s,l,0,l.length-1):e(r.text)&&I.setTextContent(s,""):r.text!==o.text&&I.setTextContent(s,o.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,o)}}}function x(t,r,o){if(n(o)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var i=0;i<r.length;++i)r[i].data.hook.insert(r[i])}function k(t,r,o,i){var a,s=r.tag,c=r.data,u=r.children;if(i=i||c&&c.pre,r.elm=t,n(r.isComment)&&e(r.asyncFactory))return r.isAsyncPlaceholder=!0,!0;if(e(c)&&(e(a=c.hook)&&e(a=a.init)&&a(r,!0),e(a=r.componentInstance)))return l(r,o),!0;if(e(s)){if(e(u))if(t.hasChildNodes())if(e(a=c)&&e(a=a.domProps)&&e(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var f=!0,d=t.firstChild,p=0;p<u.length;p++){if(!d||!k(d,u[p],o,i)){f=!1;break}d=d.nextSibling}if(!f||d)return!1}else v(r,u,o);if(e(c)){var h=!1;for(var y in c)if(!T(y)){h=!0,m(r,o);break}!h&&c.class&&ot(c.class)}}else t.data!==r.text&&(t.data=r.text);return!0}var O,S,E={},j=r.modules,I=r.nodeOps;for(O=0;O<Fo.length;++O)for(E[Fo[O]]=[],S=0;S<j.length;++S)e(j[S][Fo[O]])&&E[Fo[O]].push(j[S][Fo[O]]);var T=f("attrs,class,staticClass,staticStyle,key");return function(r,o,a,s,u,l){if(!t(o)){var f=!1,d=[];if(t(r))f=!0,c(o,d,u,l);else{var p=e(r.nodeType);if(!p&&Ke(r,o))$(r,o,d,s);else{if(p){if(1===r.nodeType&&r.hasAttribute(ar)&&(r.removeAttribute(ar),a=!0),n(a)&&k(r,o,d))return x(o,d,!0),r;r=i(r)}var v=r.elm,m=I.parentNode(v);if(c(o,d,v._leaveCb?null:m,I.nextSibling(v)),e(o.parent))for(var y=o.parent,_=h(o);y;){for(var C=0;C<E.destroy.length;++C)E.destroy[C](y);if(y.elm=o.elm,_){for(var w=0;w<E.create.length;++w)E.create[w](Mo,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else qe(y);y=y.parent}e(m)?b(m,[r],0,0):e(r.tag)&&g(r)}}return x(o,d,f),o.elm}e(r)&&g(r)}}({nodeOps:Po,modules:[Bo,Ho,qo,Ko,ti,dr?{create:Tn,activate:Tn,remove:function(t,e){!0!==t.data.show?En(t,e):e()}}:{}].concat(Vo)});yr&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Un(t,"input")});var di={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ct(n,"postpatch",function(){di.componentUpdated(t,e,n)}):Dn(t,e,n.context),t._vOptions=[].map.call(t.options,Nn)):("textarea"===n.tag||Lo(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Fn),gr||(t.addEventListener("compositionstart",Mn),t.addEventListener("compositionend",Fn)),yr&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Dn(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,Nn);o.some(function(t,e){return!b(t,r[e])})&&(t.multiple?e.value.some(function(t){return Pn(t,o)}):e.value!==e.oldValue&&Pn(e.value,o))&&Un(t,"change")}}},pi={model:di,show:{bind:function(t,e,n){var r=e.value,o=(n=Rn(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Sn(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;r!==e.oldValue&&((n=Rn(n)).data&&n.data.transition?(n.data.show=!0,r?Sn(n,function(){t.style.display=t.__vOriginalDisplay}):En(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},vi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},hi={name:"transition",props:vi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||_t(t)})).length){var r=this.mode,i=n[0];if(zn(this.$vnode))return i;var a=Vn(i);if(!a)return i;if(this._leaving)return Hn(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Bn(this),u=this._vnode,l=Vn(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!Wn(a,l)&&!_t(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=y({},c);if("out-in"===r)return this._leaving=!0,ct(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Hn(t,i);if("in-out"===r){if(_t(a))return u;var d,p=function(){d()};ct(c,"afterEnter",p),ct(c,"enterCancelled",p),ct(f,"delayLeave",function(t){d=t})}}return i}}},mi=y({tag:String,moveClass:String},vi);delete mi.mode;var yi={Transition:hi,TransitionGroup:{props:mi,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Bn(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(qn),t.forEach(Kn),t.forEach(Xn),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;wn(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(ai,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(ai,t),n._moveCb=null,An(n,e))})}}))},methods:{hasMove:function(t,e){if(!ni)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){gn(n,t)}),_n(n,e),n.style.display="none",this.$el.appendChild(n);var r=xn(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Oe.config.mustUseProp=function(t,e,n){return"value"===n&&wo(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Oe.config.isReservedTag=To,Oe.config.isReservedAttr=Co,Oe.config.getTagNamespace=function(t){return Io(t)?"svg":"math"===t?"math":void 0},Oe.config.isUnknownElement=function(t){if(!dr)return!0;if(To(t))return!1;if(t=t.toLowerCase(),null!=Do[t])return Do[t];var e=document.createElement(t);return t.indexOf("-")>-1?Do[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Do[t]=/HTMLUnknownElement/.test(e.toString())},y(Oe.options.directives,pi),y(Oe.options.components,yi),Oe.prototype.__patch__=dr?fi:g,Oe.prototype.$mount=function(t,e){return t=t&&dr?We(t):void 0,St(this,t,e)},Oe.nextTick(function(){ur.devtools&&Or&&Or.emit("init",Oe)},0),Oe});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index b77f50ac73e..2480ee88ac3 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -1278,18 +1278,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1441,13 +1441,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3593,7 +3604,7 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
@@ -3926,16 +3937,16 @@ function processFor (el) {
       return
     }
     el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
     var iteratorMatch = alias.match(forIteratorRE);
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
+      el.alias = alias.replace(forIteratorRE, '');
+      el.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim();
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '');
+      el.alias = alias;
     }
   }
 }
@@ -4727,10 +4738,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -4756,7 +4767,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
@@ -5174,7 +5185,7 @@ function genAttrSegment (name, value) {
         ? (" " + name + "=\"" + name + "\"")
         : value === '""'
           ? (" " + name)
-          : (" " + name + "=" + value)
+          : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
     }
   } else {
     return {
@@ -7285,19 +7296,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -7307,7 +7308,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -7765,15 +7770,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -7783,7 +7783,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -8004,21 +8004,18 @@ function renderAsyncComponent (node, isRoot, context) {
     if (resolvedNode) {
       renderComponent(resolvedNode, isRoot, context);
     } else {
-      reject();
+      // invalid component, but this does not throw on the client
+      // so render empty comment node
+      context.write("<!---->", context.next);
     }
   };
 
-  var reject = function (err) {
-    console.error("[vue-server-renderer] error when rendering async component:\n");
-    if (err) { console.error(err.stack); }
-    context.write(("<!--" + (node.text) + "-->"), context.next);
-  };
-
   if (factory.resolved) {
     resolve(factory.resolved);
     return
   }
 
+  var reject = context.done;
   var res;
   try {
     res = factory(resolve, reject);
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 60cc16063ec..e9847abe29c 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -1280,18 +1280,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1443,13 +1443,24 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  var lower = name.toLowerCase();
+  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -3332,7 +3343,7 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
@@ -3665,16 +3676,16 @@ function processFor (el) {
       return
     }
     el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
     var iteratorMatch = alias.match(forIteratorRE);
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
+      el.alias = alias.replace(forIteratorRE, '');
+      el.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim();
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '');
+      el.alias = alias;
     }
   }
 }
@@ -4466,10 +4477,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -4495,7 +4506,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
@@ -4913,7 +4924,7 @@ function genAttrSegment (name, value) {
         ? (" " + name + "=\"" + name + "\"")
         : value === '""'
           ? (" " + name)
-          : (" " + name + "=" + value)
+          : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
     }
   } else {
     return {
@@ -7016,19 +7027,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -7038,7 +7039,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -7496,15 +7501,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -7514,7 +7514,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -7735,21 +7735,18 @@ function renderAsyncComponent (node, isRoot, context) {
     if (resolvedNode) {
       renderComponent(resolvedNode, isRoot, context);
     } else {
-      reject();
+      // invalid component, but this does not throw on the client
+      // so render empty comment node
+      context.write("<!---->", context.next);
     }
   };
 
-  var reject = function (err) {
-    console.error("[vue-server-renderer] error when rendering async component:\n");
-    if (err) { console.error(err.stack); }
-    context.write(("<!--" + (node.text) + "-->"), context.next);
-  };
-
   if (factory.resolved) {
     resolve(factory.resolved);
     return
   }
 
+  var reject = context.done;
   var res;
   try {
     res = factory(resolve, reject);
@@ -8399,11 +8396,15 @@ function createRenderer$1 (ref) {
         return false
       }, cb);
       try {
-        render(component, write, context, function () {
+        render(component, write, context, function (err) {
           if (template) {
             result = templateRenderer.renderSync(result, context);
           }
-          cb(null, result);
+          if (err) {
+            cb(err);
+          } else {
+            cb(null, result);
+          }
         });
       } catch (e) {
         cb(e);
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 00e6f8cb536..5149cdc3f8b 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.9",
+  "version": "2.5.10",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 049f66d7c3c..f9d3dd16816 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -1439,18 +1439,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1597,6 +1597,8 @@ var defaultStrat = function (parentVal, childVal) {
     : childVal
 };
 
+
+
 function assertObjectType (name, value, vm) {
   if (!isPlainObject(value)) {
     warn(
@@ -2660,7 +2662,7 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
@@ -2993,16 +2995,16 @@ function processFor (el) {
       return
     }
     el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
     var iteratorMatch = alias.match(forIteratorRE);
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
+      el.alias = alias.replace(forIteratorRE, '');
+      el.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim();
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '');
+      el.alias = alias;
     }
   }
 }
@@ -3921,10 +3923,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -3950,7 +3952,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
@@ -4697,7 +4699,7 @@ function genAttrSegment (name, value) {
         ? (" " + name + "=\"" + name + "\"")
         : value === '""'
           ? (" " + name)
-          : (" " + name + "=" + value)
+          : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
     }
   } else {
     return {
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index fe5290e7304..326dcc03200 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -1396,18 +1396,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1554,6 +1554,8 @@ var defaultStrat = function (parentVal, childVal) {
     : childVal
 };
 
+
+
 function assertObjectType (name, value, vm) {
   if (!isPlainObject(value)) {
     warn(
@@ -2262,7 +2264,7 @@ function parseString (chr) {
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,{]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
@@ -2595,16 +2597,16 @@ function processFor (el) {
       return
     }
     el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
     var iteratorMatch = alias.match(forIteratorRE);
     if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
+      el.alias = alias.replace(forIteratorRE, '');
+      el.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        el.iterator2 = iteratorMatch[2].trim();
       }
     } else {
-      el.alias = alias.replace(stripParensRE, '');
+      el.alias = alias;
     }
   }
 }
@@ -3523,10 +3525,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -3552,7 +3554,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
@@ -4299,7 +4301,7 @@ function genAttrSegment (name, value) {
         ? (" " + name + "=\"" + name + "\"")
         : value === '""'
           ? (" " + name)
-          : (" " + name + "=" + value)
+          : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
     }
   } else {
     return {
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 0d5da29c2de..22302635532 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.9",
+  "version": "2.5.10",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From a5924a53369ec7c04f0638148f60324652c126eb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 18:16:40 -0500
Subject: [PATCH 292/911] build: release 2.5.10

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 77ce83f23ab..34e61ca3b09 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.9",
+  "version": "2.5.10",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 2713abb2441..4e22d23604c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.9",
+  "version": "2.5.10",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 4e00688e4a3ae902b0e949108492ca773dfedc6e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 18:42:44 -0500
Subject: [PATCH 293/911] build: update dev dependencies

---
 package-lock.json                             | 2753 ++++++++++-------
 package.json                                  |   18 +-
 src/compiler/codegen/index.js                 |    2 +-
 src/core/instance/inject.js                   |   10 +-
 src/core/observer/array.js                    |    3 +-
 .../web/compiler/directives/model.js          |   22 +-
 src/server/template-renderer/index.js         |    5 +-
 src/sfc/parser.js                             |    2 +-
 .../unit/features/component/component.spec.js |   11 +-
 test/unit/features/debug.spec.js              |    4 +-
 test/unit/features/options/delimiters.spec.js |    4 +-
 test/unit/modules/compiler/codegen.spec.js    |    4 +-
 .../modules/compiler/compiler-options.spec.js |   84 +-
 test/unit/modules/compiler/parser.spec.js     |    8 +-
 .../modules/vdom/patch/edge-cases.spec.js     |   12 +-
 15 files changed, 1741 insertions(+), 1201 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 34e61ca3b09..3166d2e093c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,16 +4,126 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.0.0-beta.31",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0-beta.31.tgz",
+      "integrity": "sha512-yd7CkUughvHQoEahQqcMdrZw6o/6PwUxiRkfZuVDVHCDe77mysD/suoNyk5mK6phTnRW1kyIbPHyCJgxw++LXg==",
+      "dev": true,
+      "requires": {
+        "chalk": "2.3.0",
+        "esutils": "2.0.2",
+        "js-tokens": "3.0.2"
+      }
+    },
+    "@babel/helper-function-name": {
+      "version": "7.0.0-beta.31",
+      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.31.tgz",
+      "integrity": "sha512-c+DAyp8LMm2nzSs2uXEuxp4LYGSUYEyHtU3fU57avFChjsnTmmpWmXj2dv0yUxHTEydgVAv5fIzA+4KJwoqWDA==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-get-function-arity": "7.0.0-beta.31",
+        "@babel/template": "7.0.0-beta.31",
+        "@babel/traverse": "7.0.0-beta.31",
+        "@babel/types": "7.0.0-beta.31"
+      }
+    },
+    "@babel/helper-get-function-arity": {
+      "version": "7.0.0-beta.31",
+      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.31.tgz",
+      "integrity": "sha512-m7rVVX/dMLbbB9NCzKYRrrFb0qZxgpmQ4Wv6y7zEsB6skoJHRuXVeb/hAFze79vXBbuD63ci7AVHXzAdZSk9KQ==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "7.0.0-beta.31"
+      }
+    },
+    "@babel/template": {
+      "version": "7.0.0-beta.31",
+      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.0.0-beta.31.tgz",
+      "integrity": "sha512-97IRmLvoDhIDSQkqklVt3UCxJsv0LUEVb/0DzXWtc8Lgiyxj567qZkmTG9aR21CmcJVVIvq2Y/moZj4oEpl5AA==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "7.0.0-beta.31",
+        "@babel/types": "7.0.0-beta.31",
+        "babylon": "7.0.0-beta.31",
+        "lodash": "4.17.4"
+      },
+      "dependencies": {
+        "babylon": {
+          "version": "7.0.0-beta.31",
+          "resolved": "https://registry.npmjs.org/babylon/-/babylon-7.0.0-beta.31.tgz",
+          "integrity": "sha512-6lm2mV3S51yEnKmQQNnswoABL1U1H1KHoCCVwdwI3hvIv+W7ya4ki7Aw4o4KxtUHjNKkK5WpZb22rrMMOcJXJQ==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/traverse": {
+      "version": "7.0.0-beta.31",
+      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.0.0-beta.31.tgz",
+      "integrity": "sha512-3N+VJW+KlezEjFBG7WSYeMyC5kIqVLPb/PGSzCDPFcJrnArluD1GIl7Y3xC7cjKiTq2/JohaLWHVPjJWHlo9Gg==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "7.0.0-beta.31",
+        "@babel/helper-function-name": "7.0.0-beta.31",
+        "@babel/types": "7.0.0-beta.31",
+        "babylon": "7.0.0-beta.31",
+        "debug": "3.1.0",
+        "globals": "10.4.0",
+        "invariant": "2.2.2",
+        "lodash": "4.17.4"
+      },
+      "dependencies": {
+        "babylon": {
+          "version": "7.0.0-beta.31",
+          "resolved": "https://registry.npmjs.org/babylon/-/babylon-7.0.0-beta.31.tgz",
+          "integrity": "sha512-6lm2mV3S51yEnKmQQNnswoABL1U1H1KHoCCVwdwI3hvIv+W7ya4ki7Aw4o4KxtUHjNKkK5WpZb22rrMMOcJXJQ==",
+          "dev": true
+        },
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "globals": {
+          "version": "10.4.0",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-10.4.0.tgz",
+          "integrity": "sha512-uNUtxIZpGyuaq+5BqGGQHsL4wUlJAXRqOm6g3Y48/CWNGTLONgBibI0lh6lGxjR2HljFYUfszb+mk4WkgMntsA==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/types": {
+      "version": "7.0.0-beta.31",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.0.0-beta.31.tgz",
+      "integrity": "sha512-exAHB+NeFGxkfQ5dSUD03xl3zYGneeSk2Mw2ldTt/nTvYxuDiuSp3DlxgUBgzbdTFG4fbwPk0WtKWOoTXCmNGg==",
+      "dev": true,
+      "requires": {
+        "esutils": "2.0.2",
+        "lodash": "4.17.4",
+        "to-fast-properties": "2.0.0"
+      },
+      "dependencies": {
+        "to-fast-properties": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+          "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+          "dev": true
+        }
+      }
+    },
     "@types/node": {
-      "version": "8.0.33",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.0.33.tgz",
-      "integrity": "sha512-vmCdO8Bm1ExT+FWfC9sd9r4jwqM7o97gGy2WBshkkXbf/2nLAJQUrZfIhw27yVOtLUev6kSZc4cav/46KbDd8A==",
+      "version": "8.0.58",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.0.58.tgz",
+      "integrity": "sha512-V746iUU7eHNdzQipoACuguDlVhC7IHK8CES1jSkuFt352wwA84BCWPXaGekBd7R5XdNK5ReHONDVKxlL9IreAw==",
       "dev": true
     },
     "@types/source-map": {
-      "version": "0.5.1",
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+      "version": "0.23.4",
+      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.23.4.tgz",
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       "dev": true
     },
+    "weex-styler": {
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+      "resolved": "https://registry.npmjs.org/weex-styler/-/weex-styler-0.3.0.tgz",
+      "integrity": "sha512-+zVcQO27iIh5rwGwvpbJKsFN3rciRRiRwXZDYRvzoHBzooCvtCf3tj0FtMtz9v1Z0IlGn/WH3m/Y0SocUdO/jQ==",
+      "dev": true,
+      "requires": {
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@@ -9248,9 +9797,9 @@
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-      "integrity": "sha1-u6Y8qGGUiZT/MHc2CJ47lgJsKk8=",
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
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@@ -9347,7 +9896,6 @@
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@@ -9359,24 +9907,23 @@
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-          "dev": true,
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-      "integrity": "sha1-KczqwNxPA8bIe0qfIX3RjJ90hxw=",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-7.0.0.tgz",
+      "integrity": "sha1-jQrELxbqVd69MyyvTEA4s+P139k=",
       "dev": true,
       "requires": {
-        "camelcase": "3.0.0"
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-          "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
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@@ -9403,7 +9950,7 @@
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diff --git a/package.json b/package.json
index 4e22d23604c..bd4fc1732cc 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
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     "@types/webpack": "^3.0.13",
     "babel-core": "^6.25.0",
-    "babel-eslint": "^7.2.3",
+    "babel-eslint": "^8.0.3",
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     "babel-loader": "^7.0.0",
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@@ -69,8 +69,8 @@
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-    "buble": "^0.16.0",
-    "chalk": "^1.1.3",
+    "buble": "^0.18.0",
+    "chalk": "^2.3.0",
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     "codecov.io": "^0.1.6",
     "commitizen": "^2.9.6",
@@ -79,12 +79,12 @@
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-    "eslint": "^3.0.0",
+    "eslint": "^4.13.1",
     "eslint-loader": "^1.7.1",
     "eslint-plugin-flowtype": "^2.34.0",
     "eslint-plugin-jasmine": "^2.8.4",
-    "eslint-plugin-vue-libs": "^1.2.0",
-    "file-loader": "^0.11.2",
+    "eslint-plugin-vue-libs": "^2.0.1",
+    "file-loader": "^1.1.5",
     "flow-bin": "^0.54.0",
     "hash-sum": "^1.0.2",
     "he": "^1.1.1",
@@ -110,10 +110,10 @@
     "nightwatch-helpers": "^1.2.0",
     "phantomjs-prebuilt": "^2.1.14",
     "resolve": "^1.3.3",
-    "rollup": "^0.50.0",
+    "rollup": "^0.52.1",
     "rollup-plugin-alias": "^1.3.1",
     "rollup-plugin-babel": "^3.0.2",
-    "rollup-plugin-buble": "^0.16.0",
+    "rollup-plugin-buble": "^0.18.0",
     "rollup-plugin-commonjs": "^8.0.2",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
     "rollup-plugin-node-resolve": "^3.0.0",
@@ -124,7 +124,7 @@
     "shelljs": "^0.7.8",
     "typescript": "^2.6.1",
     "uglify-js": "^3.0.15",
-    "webpack": "^2.6.1",
+    "webpack": "^3.10.0",
     "weex-js-runtime": "^0.23.0",
     "weex-styler": "^0.3.0"
   },
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index e031e15b053..e5985d90287 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -353,7 +353,7 @@ function genScopedSlot (
         ? `${el.if}?${genChildren(el, state) || 'undefined'}:undefined`
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)
-  }}`
+    }}`
   return `{key:${key},fn:${fn}}`
 }
 
diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index 8bed0cd31b5..019026479ec 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -41,11 +41,11 @@ export function resolveInject (inject: any, vm: Component): ?Object {
     // inject is :any because flow is not smart enough to figure out cached
     const result = Object.create(null)
     const keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(key => {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject)
+      ? Reflect.ownKeys(inject).filter(key => {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject)
 
     for (let i = 0; i < keys.length; i++) {
       const key = keys[i]
diff --git a/src/core/observer/array.js b/src/core/observer/array.js
index 1d22870a9c6..41742998021 100644
--- a/src/core/observer/array.js
+++ b/src/core/observer/array.js
@@ -19,8 +19,7 @@ export const arrayMethods = Object.create(arrayProto)
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   const original = arrayProto[method]
   def(arrayMethods, method, function mutator (...args) {
diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 81c4777c59f..2533ba3560f 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -73,11 +73,11 @@ function genCheckboxModel (
   const falseValueBinding = getBindingAttr(el, 'false-value') || 'false'
   addProp(el, 'checked',
     `Array.isArray(${value})` +
-      `?_i(${value},${valueBinding})>-1` + (
-        trueValueBinding === 'true'
-          ? `:(${value})`
-          : `:_q(${value},${trueValueBinding})`
-      )
+    `?_i(${value},${valueBinding})>-1` + (
+      trueValueBinding === 'true'
+        ? `:(${value})`
+        : `:_q(${value},${trueValueBinding})`
+    )
   )
   addHandler(el, 'change',
     `var $$a=${value},` +
@@ -94,9 +94,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el: ASTElement,
-    value: string,
-    modifiers: ?ASTModifiers
+  el: ASTElement,
+  value: string,
+  modifiers: ?ASTModifiers
 ) {
   const number = modifiers && modifiers.number
   let valueBinding = getBindingAttr(el, 'value') || 'null'
@@ -106,9 +106,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el: ASTElement,
-    value: string,
-    modifiers: ?ASTModifiers
+  el: ASTElement,
+  value: string,
+  modifiers: ?ASTModifiers
 ) {
   const number = modifiers && modifiers.number
   const selectedVal = `Array.prototype.filter` +
diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index a1078243a8a..dabc08a149c 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -191,13 +191,12 @@ export default class TemplateRenderer {
       contextKey = 'state',
       windowKey = '__INITIAL_STATE__'
     } = options || {}
+    const state = serialize(context[contextKey], { isJSON: true })
     const autoRemove = process.env.NODE_ENV === 'production'
       ? ';(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
       : ''
     return context[contextKey]
-      ? `<script>window.${windowKey}=${
-          serialize(context[contextKey], { isJSON: true })
-        }${autoRemove}</script>`
+      ? `<script>window.${windowKey}=${state}${autoRemove}</script>`
       : ''
   }
 
diff --git a/src/sfc/parser.js b/src/sfc/parser.js
index 643e55ca2ff..56221809271 100644
--- a/src/sfc/parser.js
+++ b/src/sfc/parser.js
@@ -19,7 +19,7 @@ type Attribute = {
 export function parseComponent (
   content: string,
   options?: Object = {}
- ): SFCDescriptor {
+): SFCDescriptor {
   const sfc: SFCDescriptor = {
     template: null,
     script: null,
diff --git a/test/unit/features/component/component.spec.js b/test/unit/features/component/component.spec.js
index 486a65033b0..34c037a1e74 100644
--- a/test/unit/features/component/component.spec.js
+++ b/test/unit/features/component/component.spec.js
@@ -106,10 +106,10 @@ describe('Component', () => {
       expect(vm.$el.outerHTML).toBe('<div view="view-b">bar b</div>')
       vm.view = ''
     })
-    .then(() => {
-      expect(vm.$el.nodeType).toBe(8)
-      expect(vm.$el.data).toBe('')
-    }).then(done)
+      .then(() => {
+        expect(vm.$el.nodeType).toBe(8)
+        expect(vm.$el.data).toBe('')
+      }).then(done)
   })
 
   it('dynamic with props', done => {
@@ -134,8 +134,7 @@ describe('Component', () => {
     waitForUpdate(() => {
       expect(vm.$el.outerHTML).toBe('<div>bar view-b</div>')
       vm.view = ''
-    })
-    .then(() => {
+    }).then(() => {
       expect(vm.$el.nodeType).toBe(8)
       expect(vm.$el.data).toBe('')
     }).then(done)
diff --git a/test/unit/features/debug.spec.js b/test/unit/features/debug.spec.js
index 5fb5b48270c..ff4953245fa 100644
--- a/test/unit/features/debug.spec.js
+++ b/test/unit/features/debug.spec.js
@@ -41,7 +41,7 @@ describe('Debug utilities', () => {
     }).$mount()
 
     expect(
-`Failed to mount component: template or render function not defined.
+      `Failed to mount component: template or render function not defined.
 
 found in
 
@@ -70,7 +70,7 @@ found in
     }).$mount()
 
     expect(
-`Failed to mount component: template or render function not defined.
+      `Failed to mount component: template or render function not defined.
 
 found in
 
diff --git a/test/unit/features/options/delimiters.spec.js b/test/unit/features/options/delimiters.spec.js
index cebcc2b34a0..d477cab0a37 100644
--- a/test/unit/features/options/delimiters.spec.js
+++ b/test/unit/features/options/delimiters.spec.js
@@ -82,7 +82,7 @@ describe('Delimiters', () => {
     }).$mount()
 
     expect(vm.$el.textContent).toEqual('1 - 2')
-      // restore default options
+    // restore default options
     delete Vue.options.delimiters
   })
 
@@ -110,7 +110,7 @@ describe('Delimiters', () => {
     }).$mount()
 
     expect(vm.$el.textContent).toEqual('1 - 2')
-      // restore default options
+    // restore default options
     delete Vue.options.delimiters
   })
 })
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index d8b6c7e6839..b1085a571df 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -104,8 +104,8 @@ describe('codegen', () => {
 
   it('generate multi v-else-if with v-else directive', () => {
     assertCodegen(
-        '<div><p v-if="show">hello</p><p v-else-if="hide">world</p><p v-else-if="3">elseif</p><p v-else>bye</p></div>',
-        `with(this){return _c('div',[(show)?_c('p',[_v("hello")]):(hide)?_c('p',[_v("world")]):(3)?_c('p',[_v("elseif")]):_c('p',[_v("bye")])])}`
+      '<div><p v-if="show">hello</p><p v-else-if="hide">world</p><p v-else-if="3">elseif</p><p v-else>bye</p></div>',
+      `with(this){return _c('div',[(show)?_c('p',[_v("hello")]):(hide)?_c('p',[_v("world")]):(3)?_c('p',[_v("elseif")]):_c('p',[_v("bye")])])}`
     )
   })
 
diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index 78fc8e92363..c7a9202cd2e 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -9,58 +9,58 @@ describe('compile options', () => {
         <input type="text" v-model="msg" required max="8" v-validate:field1.group1.group2>
       </div>
     `, {
-      directives: {
-        validate (el, dir) {
-          if (dir.name === 'validate' && dir.arg) {
-            el.validate = {
-              field: dir.arg,
-              groups: dir.modifiers ? Object.keys(dir.modifiers) : []
+        directives: {
+          validate (el, dir) {
+            if (dir.name === 'validate' && dir.arg) {
+              el.validate = {
+                field: dir.arg,
+                groups: dir.modifiers ? Object.keys(dir.modifiers) : []
+              }
             }
           }
-        }
-      },
-      modules: [{
-        transformNode (el) {
-          el.validators = el.validators || []
-          const validators = ['required', 'min', 'max', 'pattern', 'maxlength', 'minlength']
-          validators.forEach(name => {
-            const rule = getAndRemoveAttr(el, name)
-            if (rule !== undefined) {
-              el.validators.push({ name, rule })
-            }
-          })
         },
-        genData (el) {
-          let data = ''
-          if (el.validate) {
-            data += `validate:${JSON.stringify(el.validate)},`
-          }
-          if (el.validators) {
-            data += `validators:${JSON.stringify(el.validators)},`
-          }
-          return data
-        },
-        transformCode (el, code) {
+        modules: [{
+          transformNode (el) {
+            el.validators = el.validators || []
+            const validators = ['required', 'min', 'max', 'pattern', 'maxlength', 'minlength']
+            validators.forEach(name => {
+              const rule = getAndRemoveAttr(el, name)
+              if (rule !== undefined) {
+                el.validators.push({ name, rule })
+              }
+            })
+          },
+          genData (el) {
+            let data = ''
+            if (el.validate) {
+              data += `validate:${JSON.stringify(el.validate)},`
+            }
+            if (el.validators) {
+              data += `validators:${JSON.stringify(el.validators)},`
+            }
+            return data
+          },
+          transformCode (el, code) {
           // check
-          if (!el.validate || !el.validators) {
-            return code
-          }
-          // setup validation result props
-          const result = { dirty: false } // define something other prop
-          el.validators.forEach(validator => {
-            result[validator.name] = null
-          })
-          // generate code
-          return `_c('validate',{props:{
+            if (!el.validate || !el.validators) {
+              return code
+            }
+            // setup validation result props
+            const result = { dirty: false } // define something other prop
+            el.validators.forEach(validator => {
+              result[validator.name] = null
+            })
+            // generate code
+            return `_c('validate',{props:{
             field:${JSON.stringify(el.validate.field)},
             groups:${JSON.stringify(el.validate.groups)},
             validators:${JSON.stringify(el.validators)},
             result:${JSON.stringify(result)},
             child:${code}}
           })`
-        }
-      }]
-    })
+          }
+        }]
+      })
     expect(render).not.toBeUndefined()
     expect(staticRenderFns).toEqual([])
     expect(errors).toEqual([])
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 11acb66014d..750e371105f 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -123,7 +123,7 @@ describe('parser', () => {
   it('not warn 3 root elements with v-if, v-else-if and v-else', () => {
     parse('<div v-if="1"></div><div v-else-if="2"></div><div v-else></div>', baseOptions)
     expect('Component template should contain exactly one root element')
-        .not.toHaveBeenWarned()
+      .not.toHaveBeenWarned()
   })
 
   it('not warn 2 root elements with v-if and v-else on separate lines', () => {
@@ -142,7 +142,7 @@ describe('parser', () => {
       <div v-else></div>
     `, baseOptions)
     expect('Component template should contain exactly one root element')
-        .not.toHaveBeenWarned()
+      .not.toHaveBeenWarned()
 
     parse(`
       <div v-if="1"></div>
@@ -152,7 +152,7 @@ describe('parser', () => {
       <div v-else></div>
     `, baseOptions)
     expect('Component template should contain exactly one root element')
-        .not.toHaveBeenWarned()
+      .not.toHaveBeenWarned()
   })
 
   it('generate correct ast for 2 root elements with v-if and v-else on separate lines', () => {
@@ -219,7 +219,7 @@ describe('parser', () => {
   it('warn 2 root elements with v-if and v-else-if with v-for on 2nd', () => {
     parse('<div v-if="1"></div><div v-else-if="2" v-for="i in [1]"></div>', baseOptions)
     expect('Cannot use v-for on stateful component root element because it renders multiple elements')
-        .toHaveBeenWarned()
+      .toHaveBeenWarned()
   })
 
   it('warn <template> as root element', () => {
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 8793da2156d..3673b3f5fff 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -96,23 +96,19 @@ describe('vdom patch: edge cases', () => {
       expect(compVm.$vnode.parent).toBe(wrapperVm.$vnode)
       expect(vm.$el.innerHTML).toBe('<div>row</div><a>atag</a>')
       vm.swap = false
-    })
-    .then(() => {
+    }).then(() => {
       expect(compVm.$vnode.parent).toBe(wrapperVm.$vnode)
       expect(vm.$el.innerHTML).toBe('<a>atag</a><div>row</div>')
       compVm.swap = false
-    })
-    .then(() => {
+    }).then(() => {
       expect(vm.$el.innerHTML).toBe('<span>span</span><div>row</div>')
       expect(compVm.$vnode.parent).toBe(wrapperVm.$vnode)
       vm.swap = true
-    })
-    .then(() => {
+    }).then(() => {
       expect(vm.$el.innerHTML).toBe('<div>row</div><span>span</span>')
       expect(compVm.$vnode.parent).toBe(wrapperVm.$vnode)
       vm.swap = true
-    })
-    .then(done)
+    }).then(done)
   })
 
   // #4530

From 531371b818b0e31a989a06df43789728f23dc4e8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 19:06:47 -0500
Subject: [PATCH 294/911] types: upgrade flow

---
 flow/compiler.js                                  | 12 ++----------
 package-lock.json                                 |  6 +++---
 package.json                                      |  2 +-
 src/compiler/create-compiler.js                   |  2 +-
 src/compiler/to-function.js                       |  4 +---
 src/core/config.js                                |  2 ++
 src/core/instance/lifecycle.js                    |  2 +-
 src/core/instance/render-helpers/resolve-slots.js |  6 ++++--
 src/core/instance/state.js                        |  1 +
 src/core/vdom/modules/directives.js               |  3 +++
 src/platforms/web/util/class.js                   |  6 +++---
 src/platforms/web/util/style.js                   |  7 +++++--
 src/sfc/parser.js                                 |  6 +++---
 13 files changed, 30 insertions(+), 29 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index a5ebc5f3862..81e1c6ebe64 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -173,21 +173,13 @@ declare type SFCDescriptor = {
   template: ?SFCBlock;
   script: ?SFCBlock;
   styles: Array<SFCBlock>;
-  customBlocks: Array<SFCCustomBlock>;
-}
-
-declare type SFCCustomBlock = {
-  type: string;
-  content: string;
-  start?: number;
-  end?: number;
-  src?: string;
-  attrs: {[attribute:string]: string};
+  customBlocks: Array<SFCBlock>;
 };
 
 declare type SFCBlock = {
   type: string;
   content: string;
+  attrs: {[attribute:string]: string};
   start?: number;
   end?: number;
   lang?: string;
diff --git a/package-lock.json b/package-lock.json
index 3166d2e093c..fe02595618d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3814,9 +3814,9 @@
       }
     },
     "flow-bin": {
-      "version": "0.54.1",
-      "resolved": "https://registry.npmjs.org/flow-bin/-/flow-bin-0.54.1.tgz",
-      "integrity": "sha1-cQG8zPAG3AZScUqK7wxyB4p2BRA=",
+      "version": "0.61.0",
+      "resolved": "https://registry.npmjs.org/flow-bin/-/flow-bin-0.61.0.tgz",
+      "integrity": "sha512-w6SGi5CDfKLNGzYssRhW6N37qKclDXijsxDQ5M8c3WbivRYta0Horv22bwakegfKBVDnyeS0lRW3OqBC74eq2g==",
       "dev": true
     },
     "flow-remove-types-no-whitespace": {
diff --git a/package.json b/package.json
index bd4fc1732cc..2cda61adc14 100644
--- a/package.json
+++ b/package.json
@@ -85,7 +85,7 @@
     "eslint-plugin-jasmine": "^2.8.4",
     "eslint-plugin-vue-libs": "^2.0.1",
     "file-loader": "^1.1.5",
-    "flow-bin": "^0.54.0",
+    "flow-bin": "^0.61.0",
     "hash-sum": "^1.0.2",
     "he": "^1.1.1",
     "http-server": "^0.10.0",
diff --git a/src/compiler/create-compiler.js b/src/compiler/create-compiler.js
index b6690d8ad20..6671dcfe385 100644
--- a/src/compiler/create-compiler.js
+++ b/src/compiler/create-compiler.js
@@ -26,7 +26,7 @@ export function createCompilerCreator (baseCompile: Function): Function {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           )
         }
diff --git a/src/compiler/to-function.js b/src/compiler/to-function.js
index d9f20056093..7fe0f13fff1 100644
--- a/src/compiler/to-function.js
+++ b/src/compiler/to-function.js
@@ -18,9 +18,7 @@ function createFunction (code, errors) {
 }
 
 export function createCompileToFunctionFn (compile: Function): Function {
-  const cache: {
-    [key: string]: CompiledFunctionResult;
-  } = Object.create(null)
+  const cache = Object.create(null)
 
   return function compileToFunctions (
     template: string,
diff --git a/src/core/config.js b/src/core/config.js
index 18fc3d947ee..f25f09d1f35 100644
--- a/src/core/config.js
+++ b/src/core/config.js
@@ -36,6 +36,7 @@ export default ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -76,6 +77,7 @@ export default ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 9280de9a81f..46b931e0a53 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -212,7 +212,7 @@ export function updateChildComponent (
   vm: Component,
   propsData: ?Object,
   listeners: ?Object,
-  parentVnode: VNode,
+  parentVnode: MountedComponentVNode,
   renderChildren: ?Array<VNode>
 ) {
   if (process.env.NODE_ENV !== 'production') {
diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 0065e3c9523..02f007cf233 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -1,5 +1,7 @@
 /* @flow */
 
+import type VNode from 'core/vdom/vnode'
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -23,10 +25,10 @@ export function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      const name = child.data.slot
+      const name = data.slot
       const slot = (slots[name] || (slots[name] = []))
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children)
+        slot.push.apply(slot, child.children || [])
       } else {
         slot.push(child)
       }
diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 4fa6f15bac8..72d9edd84f8 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -161,6 +161,7 @@ function getData (data: Function, vm: Component): any {
 const computedWatcherOptions = { lazy: true }
 
 function initComputed (vm: Component, computed: Object) {
+  // $flow-disable-line
   const watchers = vm._computedWatchers = Object.create(null)
   // computed properties are just getters during SSR
   const isSSR = isServerRendering()
diff --git a/src/core/vdom/modules/directives.js b/src/core/vdom/modules/directives.js
index 42e33f9e981..639982fab59 100644
--- a/src/core/vdom/modules/directives.js
+++ b/src/core/vdom/modules/directives.js
@@ -86,17 +86,20 @@ function normalizeDirectives (
 ): { [key: string]: VNodeDirective } {
   const res = Object.create(null)
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   let i, dir
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i]
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers
     }
     res[getRawDirName(dir)] = dir
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true)
   }
+  // $flow-disable-line
   return res
 }
 
diff --git a/src/platforms/web/util/class.js b/src/platforms/web/util/class.js
index 1da7ef23276..542dcbc4698 100644
--- a/src/platforms/web/util/class.js
+++ b/src/platforms/web/util/class.js
@@ -2,18 +2,18 @@
 
 import { isDef, isObject } from 'shared/util'
 
-export function genClassForVnode (vnode: VNode): string {
+export function genClassForVnode (vnode: VNodeWithData): string {
   let data = vnode.data
   let parentNode = vnode
   let childNode = vnode
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data)
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data)
     }
   }
diff --git a/src/platforms/web/util/style.js b/src/platforms/web/util/style.js
index 7b0663736e5..fc119043f99 100644
--- a/src/platforms/web/util/style.js
+++ b/src/platforms/web/util/style.js
@@ -40,7 +40,7 @@ export function normalizeStyleBinding (bindingStyle: any): ?Object {
  * parent component style should be after child's
  * so that parent component's style could override it
  */
-export function getStyle (vnode: VNode, checkChild: boolean): Object {
+export function getStyle (vnode: VNodeWithData, checkChild: boolean): Object {
   const res = {}
   let styleData
 
@@ -48,7 +48,10 @@ export function getStyle (vnode: VNode, checkChild: boolean): Object {
     let childNode = vnode
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData)
       }
     }
diff --git a/src/sfc/parser.js b/src/sfc/parser.js
index 56221809271..868a43ca082 100644
--- a/src/sfc/parser.js
+++ b/src/sfc/parser.js
@@ -27,7 +27,7 @@ export function parseComponent (
     customBlocks: []
   }
   let depth = 0
-  let currentBlock: ?(SFCBlock | SFCCustomBlock) = null
+  let currentBlock: ?SFCBlock = null
 
   function start (
     tag: string,
@@ -44,7 +44,7 @@ export function parseComponent (
         attrs: attrs.reduce((cumulated, { name, value }) => {
           cumulated[name] = value || true
           return cumulated
-        }, Object.create(null))
+        }, {})
       }
       if (isSpecialTag(tag)) {
         checkAttrs(currentBlock, attrs)
@@ -95,7 +95,7 @@ export function parseComponent (
     depth--
   }
 
-  function padContent (block: SFCBlock | SFCCustomBlock, pad: true | "line" | "space") {
+  function padContent (block: SFCBlock, pad: true | "line" | "space") {
     if (pad === 'space') {
       return content.slice(0, block.start).replace(replaceRE, ' ')
     } else {

From 14f7015578db8a740450b8f1f45e74b1604ff173 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 12 Dec 2017 19:16:17 -0500
Subject: [PATCH 295/911] test: fix ssr test due to webpack asset emit order
 change

---
 test/ssr/ssr-template.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index ad7c0413850..d93528466bb 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -227,8 +227,8 @@ describe('SSR: template option', () => {
       `<link rel="preload" href="/0.js" as="script">` +
       `<link rel="preload" href="/test.css" as="style">` +
       // images and fonts are only preloaded when explicitly asked for
-      (options.preloadOtherAssets ? `<link rel="preload" href="/test.png" as="image">` : ``) +
       (options.preloadOtherAssets ? `<link rel="preload" href="/test.woff2" as="font" type="font/woff2" crossorigin>` : ``) +
+      (options.preloadOtherAssets ? `<link rel="preload" href="/test.png" as="image">` : ``) +
       // unused chunks should have prefetch
       (options.noPrefetch ? `` : `<link rel="prefetch" href="/1.js">`) +
       // css assets should be loaded

From d02bb37efb3c4ee14b8cf9db22d1ab3340ba2c0f Mon Sep 17 00:00:00 2001
From: Alexander Sokolov <modex13@gmail.com>
Date: Thu, 14 Dec 2017 19:39:32 +0300
Subject: [PATCH 296/911] feat: warn misspelled keys on prop validation object
 (#7198)

---
 src/core/util/options.js                 |  4 ++++
 src/core/util/props.js                   | 25 ++++++++++++++++++++++++
 test/unit/features/options/props.spec.js | 17 ++++++++++++++++
 3 files changed, 46 insertions(+)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index c5c7fb25954..7a36ee168cb 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -4,6 +4,7 @@ import config from '../config'
 import { warn } from './debug'
 import { nativeWatch } from './env'
 import { set } from '../observer/index'
+import { assertPropObject } from './props'
 
 import {
   ASSET_TYPES,
@@ -293,6 +294,9 @@ function normalizeProps (options: Object, vm: ?Component) {
     for (const key in props) {
       val = props[key]
       name = camelize(key)
+      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
+        assertPropObject(name, val, vm)
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val }
diff --git a/src/core/util/props.js b/src/core/util/props.js
index 310514d7df6..dcc2358e46d 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -18,6 +18,13 @@ type PropOptions = {
   validator: ?Function
 };
 
+const propOptionsNames = [
+  'type',
+  'default',
+  'required',
+  'validator'
+]
+
 export function validateProp (
   key: string,
   propOptions: Object,
@@ -84,6 +91,24 @@ function getPropDefaultValue (vm: ?Component, prop: PropOptions, key: string): a
     : def
 }
 
+/**
+ * Assert whether a prop object keys are valid.
+ */
+export function assertPropObject (
+  propName: string,
+  prop: Object,
+  vm: ?Component
+) {
+  for (const key in prop) {
+    if (propOptionsNames.indexOf(key) === -1) {
+      warn(
+        `Invalid key "${key}" in validation rules object for prop "${propName}".`,
+        vm
+      )
+    }
+  }
+}
+
 /**
  * Assert whether a prop is valid.
  */
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index ae2baefff99..42acbe6b88b 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -512,4 +512,21 @@ describe('Options props', () => {
       expect(`"${attr}" is a reserved attribute`).toHaveBeenWarned()
     })
   })
+
+  it('should warn about misspelled keys in prop validation object', () => {
+    new Vue({
+      template: '<test></test>',
+      components: {
+        test: {
+          template: '<div></div>',
+          props: {
+            value: { reqquired: true },
+            count: { deafult: 1 }
+          }
+        }
+      }
+    }).$mount()
+    expect(`Invalid key "reqquired" in validation rules object for prop "value".`).toHaveBeenWarned()
+    expect(`Invalid key "deafult" in validation rules object for prop "count".`).toHaveBeenWarned()
+  })
 })

From 90ed48224e0ae281a2579b997e4bd5a150b80413 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Dec 2017 11:50:20 -0500
Subject: [PATCH 297/911] refactor: move prop rule validation to
 util/options.js

---
 src/core/util/options.js | 23 +++++++++++++++++++++--
 src/core/util/props.js   | 25 -------------------------
 2 files changed, 21 insertions(+), 27 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 7a36ee168cb..39d3a66bf55 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -4,7 +4,6 @@ import config from '../config'
 import { warn } from './debug'
 import { nativeWatch } from './env'
 import { set } from '../observer/index'
-import { assertPropObject } from './props'
 
 import {
   ASSET_TYPES,
@@ -295,7 +294,7 @@ function normalizeProps (options: Object, vm: ?Component) {
       val = props[key]
       name = camelize(key)
       if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        assertPropObject(name, val, vm)
+        validatePropObject(name, val, vm)
       }
       res[name] = isPlainObject(val)
         ? val
@@ -311,6 +310,26 @@ function normalizeProps (options: Object, vm: ?Component) {
   options.props = res
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+const propOptionsRE = /^(type|default|required|validator)$/
+
+function validatePropObject (
+  propName: string,
+  prop: Object,
+  vm: ?Component
+) {
+  for (const key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        `Invalid key "${key}" in validation rules object for prop "${propName}".`,
+        vm
+      )
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
diff --git a/src/core/util/props.js b/src/core/util/props.js
index dcc2358e46d..310514d7df6 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -18,13 +18,6 @@ type PropOptions = {
   validator: ?Function
 };
 
-const propOptionsNames = [
-  'type',
-  'default',
-  'required',
-  'validator'
-]
-
 export function validateProp (
   key: string,
   propOptions: Object,
@@ -91,24 +84,6 @@ function getPropDefaultValue (vm: ?Component, prop: PropOptions, key: string): a
     : def
 }
 
-/**
- * Assert whether a prop object keys are valid.
- */
-export function assertPropObject (
-  propName: string,
-  prop: Object,
-  vm: ?Component
-) {
-  for (const key in prop) {
-    if (propOptionsNames.indexOf(key) === -1) {
-      warn(
-        `Invalid key "${key}" in validation rules object for prop "${propName}".`,
-        vm
-      )
-    }
-  }
-}
-
 /**
  * Assert whether a prop is valid.
  */

From 3f0c628e2c0fe6bfaecc521c96c6cc12ff24c7c4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Dec 2017 11:52:37 -0500
Subject: [PATCH 298/911] fix: avoid unnecessary lowercase coersion in
 component name validation

close #7237
---
 src/core/util/options.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 39d3a66bf55..07d9cfc0b84 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -260,8 +260,7 @@ export function validateComponentName (name: string) {
       'and must start with a letter.'
     )
   }
-  const lower = name.toLowerCase()
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name

From 36efc76256fe9fa7a2965938364765d50c0e9223 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Dec 2017 11:56:00 -0500
Subject: [PATCH 299/911] build: build 2.5.11

---
 dist/vue.common.js                          |  90 +++-
 dist/vue.esm.js                             |  90 +++-
 dist/vue.js                                 |  90 +++-
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  |  66 ++-
 dist/vue.runtime.esm.js                     |  66 ++-
 dist/vue.runtime.js                         |  66 ++-
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 546 +++----------------
 packages/vue-server-renderer/build.js       | 557 +++-----------------
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  67 +--
 packages/vue-template-compiler/build.js     |  67 +--
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 533 insertions(+), 1184 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 09c43ffeeb7..6e89ce9a356 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -342,6 +342,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -382,6 +383,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -816,8 +818,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1324,8 +1325,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1357,6 +1357,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1371,6 +1374,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -2518,6 +2541,8 @@ function eventsMixin (Vue) {
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -2541,10 +2566,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -3385,6 +3410,7 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  // $flow-disable-line
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3615,11 +3641,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -4976,7 +5002,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.10';
+Vue$3.version = '2.5.11';
 
 /*  */
 
@@ -5028,12 +5054,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -6134,17 +6160,20 @@ function normalizeDirectives$1 (
 ) {
   var res = Object.create(null);
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   var i, dir;
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i];
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers;
     }
     res[getRawDirName(dir)] = dir;
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
   }
+  // $flow-disable-line
   return res
 }
 
@@ -6770,11 +6799,11 @@ function genCheckboxModel (
   var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
   addProp(el, 'checked',
     "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
   );
   addHandler(el, 'change',
     "var $$a=" + value + "," +
@@ -6791,9 +6820,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var valueBinding = getBindingAttr(el, 'value') || 'null';
@@ -6803,9 +6832,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var selectedVal = "Array.prototype.filter" +
@@ -7094,7 +7123,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -8250,7 +8282,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
+      true // removeOnly (!important avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -10574,7 +10606,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index d90ff57f7e5..f31b7a22787 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -340,6 +340,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -380,6 +381,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -814,8 +816,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1322,8 +1323,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1355,6 +1355,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1369,6 +1372,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -2516,6 +2539,8 @@ function eventsMixin (Vue) {
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -2539,10 +2564,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -3383,6 +3408,7 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  // $flow-disable-line
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3613,11 +3639,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -4974,7 +5000,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.10';
+Vue$3.version = '2.5.11';
 
 /*  */
 
@@ -5026,12 +5052,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -6132,17 +6158,20 @@ function normalizeDirectives$1 (
 ) {
   var res = Object.create(null);
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   var i, dir;
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i];
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers;
     }
     res[getRawDirName(dir)] = dir;
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
   }
+  // $flow-disable-line
   return res
 }
 
@@ -6768,11 +6797,11 @@ function genCheckboxModel (
   var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
   addProp(el, 'checked',
     "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
   );
   addHandler(el, 'change',
     "var $$a=" + value + "," +
@@ -6789,9 +6818,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var valueBinding = getBindingAttr(el, 'value') || 'null';
@@ -6801,9 +6830,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var selectedVal = "Array.prototype.filter" +
@@ -7092,7 +7121,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -8248,7 +8280,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
+      true // removeOnly (!important avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -10572,7 +10604,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
diff --git a/dist/vue.js b/dist/vue.js
index b8853ada646..a97d7c604c0 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -346,6 +346,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -386,6 +387,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -820,8 +822,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1328,8 +1329,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1361,6 +1361,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if ("development" !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1375,6 +1378,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -2520,6 +2543,8 @@ function eventsMixin (Vue) {
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -2543,10 +2568,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -3383,6 +3408,7 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  // $flow-disable-line
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3611,11 +3637,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -4965,7 +4991,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.10';
+Vue$3.version = '2.5.11';
 
 /*  */
 
@@ -5017,12 +5043,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -6123,17 +6149,20 @@ function normalizeDirectives$1 (
 ) {
   var res = Object.create(null);
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   var i, dir;
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i];
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers;
     }
     res[getRawDirName(dir)] = dir;
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
   }
+  // $flow-disable-line
   return res
 }
 
@@ -6759,11 +6788,11 @@ function genCheckboxModel (
   var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
   addProp(el, 'checked',
     "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
   );
   addHandler(el, 'change',
     "var $$a=" + value + "," +
@@ -6780,9 +6809,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var valueBinding = getBindingAttr(el, 'value') || 'null';
@@ -6792,9 +6821,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var selectedVal = "Array.prototype.filter" +
@@ -7083,7 +7112,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -8239,7 +8271,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
+      true // removeOnly (!important avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -10563,7 +10595,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 2334824b0ea..4eb55b799b5 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";function e(e){return void 0===e||null===e}function t(e){return void 0!==e&&null!==e}function n(e){return!0===e}function r(e){return!1===e}function i(e){return"string"==typeof e||"number"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}function a(e){return"[object Object]"===Si.call(e)}function s(e){return"[object RegExp]"===Si.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}function d(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}function p(e,t){return ji.call(e,t)}function v(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}function h(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n}function m(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function y(e,t){for(var n in t)e[n]=t[n];return e}function g(e){for(var t={},n=0;n<e.length;n++)e[n]&&y(t,e[n]);return t}function _(e,t,n){}function b(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var i=Array.isArray(e),a=Array.isArray(t);if(i&&a)return e.length===t.length&&e.every(function(e,n){return b(e,t[n])});if(i||a)return!1;var s=Object.keys(e),c=Object.keys(t);return s.length===c.length&&s.every(function(n){return b(e[n],t[n])})}catch(e){return!1}}function $(e,t){for(var n=0;n<e.length;n++)if(b(e[n],t))return n;return-1}function C(e){var t=!1;return 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$event.currentTarget"),ctrl:la("!$event.ctrlKey"),shift:la("!$event.shiftKey"),alt:la("!$event.altKey"),meta:la("!$event.metaKey"),left:la("'button' in $event && $event.button !== 0"),middle:la("'button' in $event && $event.button !== 1"),right:la("'button' in $event && $event.button !== 2")},da={on:function(t,e){t.wrapListeners=function(t){return"_g("+t+","+e.value+")"}},bind:function(t,e){t.wrapData=function(n){return"_b("+n+",'"+t.tag+"',"+e.value+","+(e.modifiers&&e.modifiers.prop?"true":"false")+(e.modifiers&&e.modifiers.sync?",true":"")+")"}},cloak:y},pa=function(t){this.options=t,this.warn=t.warn||se,this.transforms=ce(t.modules,"transformCode"),this.dataGenFns=ce(t.modules,"genData"),this.directives=h(h({},da),t.directives);var e=t.isReservedTag||Bn;this.maybeComponent=function(t){return!e(t.tag)},this.onceId=0,this.staticRenderFns=[]},va=(new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b"),new RegExp("\\b"+"delete,typeof,void".split(",").join("\\s*\\([^\\)]*\\)|\\b")+"\\s*\\([^\\)]*\\)"),function(t){return function(e){function n(n,r){var i=Object.create(e),o=[],a=[];if(i.warn=function(t,e){(e?a:o).push(t)},r){r.modules&&(i.modules=(e.modules||[]).concat(r.modules)),r.directives&&(i.directives=h(Object.create(e.directives||null),r.directives));for(var s in r)"modules"!==s&&"directives"!==s&&(i[s]=r[s])}var c=t(n,i);return c.errors=o,c.tips=a,c}return{compile:n,compileToFunctions:function(t){var e=Object.create(null);return function(n,r,i){(r=h({},r)).warn,delete r.warn;var o=r.delimiters?String(r.delimiters)+n:n;if(e[o])return e[o];var a=t(n,r),s={},c=[];return s.render=Tn(a.render,c),s.staticRenderFns=a.staticRenderFns.map(function(t){return Tn(t,c)}),e[o]=s}}(n)}}}(function(t,e){var n=an(t.trim(),e);!function(t,e){t&&(Po=aa(e.staticKeys||""),Fo=e.isReservedTag||Bn,dn(t),pn(t,!1))}(n,e);var r=yn(n,e);return{ast:n,render:r.render,staticRenderFns:r.staticRenderFns}})(oa).compileToFunctions),ha=!!Gn&&En(!1),ma=!!Gn&&En(!0),ya=d(function(t){var e=Zt(t);return e&&e.innerHTML}),ga=Rt.prototype.$mount;return Rt.prototype.$mount=function(t,e){if((t=t&&Zt(t))===document.body||t===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=ya(r));else{if(!r.nodeType)return this;r=r.innerHTML}else t&&(r=function(t){if(t.outerHTML)return t.outerHTML;var e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}(t));if(r){var i=va(r,{shouldDecodeNewlines:ha,shouldDecodeNewlinesForHref:ma,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return ga.call(this,t,e)},Rt.compile=va,Rt});
\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 54efb978064..6462e3d01eb 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -338,6 +338,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -378,6 +379,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -812,8 +814,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1320,8 +1321,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1353,6 +1353,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1367,6 +1370,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -2514,6 +2537,8 @@ function eventsMixin (Vue) {
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -2537,10 +2562,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -3381,6 +3406,7 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  // $flow-disable-line
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3611,11 +3637,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -4972,7 +4998,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.10';
+Vue$3.version = '2.5.11';
 
 /*  */
 
@@ -5024,12 +5050,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -6130,17 +6156,20 @@ function normalizeDirectives$1 (
 ) {
   var res = Object.create(null);
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   var i, dir;
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i];
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers;
     }
     res[getRawDirName(dir)] = dir;
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
   }
+  // $flow-disable-line
   return res
 }
 
@@ -6564,7 +6593,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -7720,7 +7752,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
+      true // removeOnly (!important avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index db70d8cc14b..add99a44e80 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -336,6 +336,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -376,6 +377,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -810,8 +812,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1318,8 +1319,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1351,6 +1351,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1365,6 +1368,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -2512,6 +2535,8 @@ function eventsMixin (Vue) {
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -2535,10 +2560,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -3379,6 +3404,7 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  // $flow-disable-line
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3609,11 +3635,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -4970,7 +4996,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.10';
+Vue$3.version = '2.5.11';
 
 /*  */
 
@@ -5022,12 +5048,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -6128,17 +6154,20 @@ function normalizeDirectives$1 (
 ) {
   var res = Object.create(null);
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   var i, dir;
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i];
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers;
     }
     res[getRawDirName(dir)] = dir;
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
   }
+  // $flow-disable-line
   return res
 }
 
@@ -6562,7 +6591,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -7718,7 +7750,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
+      true // removeOnly (!important avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 84f74643da2..3bc9a4f47e6 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -342,6 +342,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -382,6 +383,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -816,8 +818,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1324,8 +1325,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1357,6 +1357,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if ("development" !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1371,6 +1374,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -2516,6 +2539,8 @@ function eventsMixin (Vue) {
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -2539,10 +2564,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -3379,6 +3404,7 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  // $flow-disable-line
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3607,11 +3633,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -4961,7 +4987,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.10';
+Vue$3.version = '2.5.11';
 
 /*  */
 
@@ -5013,12 +5039,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -6119,17 +6145,20 @@ function normalizeDirectives$1 (
 ) {
   var res = Object.create(null);
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   var i, dir;
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i];
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers;
     }
     res[getRawDirName(dir)] = dir;
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
   }
+  // $flow-disable-line
   return res
 }
 
@@ -6553,7 +6582,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -7709,7 +7741,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
+      true // removeOnly (!important avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index dae3590d8f8..574c34fa208 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.10
+ * Vue.js v2.5.11
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
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ri={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?Q(n,"postpatch",function(){ri.componentUpdated(t,e,n)}):ke(t,e,n.context),t._vOptions=[].map.call(t.options,Ee)):("textarea"===n.tag||xr(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Ie),fn||(t.addEventListener("compositionstart",je),t.addEventListener("compositionend",Ie)),un&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){ke(t,e,n.context);var r=t._vOptions,i=t._vOptions=[].map.call(t.options,Ee);if(i.some(function(t,e){return!_(t,r[e])})){(t.multiple?e.value.some(function(t){return Se(t,i)}):e.value!==e.oldValue&&Se(e.value,i))&&Te(t,"change")}}}},ii={model:ri,show:{bind:function(t,e,n){var r=e.value,i=(n=De(n)).data&&n.data.transition,o=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&i?(n.data.show=!0,Ce(n,function(){t.style.display=o})):t.style.display=r?o:"none"},update:function(t,e,n){var r=e.value;if(r!==e.oldValue){(n=De(n)).data&&n.data.transition?(n.data.show=!0,r?Ce(n,function(){t.style.display=t.__vOriginalDisplay}):we(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none"}},unbind:function(t,e,n,r,i){i||(t.style.display=t.__vOriginalDisplay)}}},oi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},ai={name:"transition",props:oi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||rt(t)})).length){var i=this.mode,o=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return o;var a=Le(o);if(!a)return o;if(this._leaving)return Ne(t,o);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:r(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Pe(this),u=this._vnode,l=Le(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!rt(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=h({},c);if("out-in"===i)return this._leaving=!0,Q(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ne(t,o);if("in-out"===i){if(rt(a))return u;var p,d=function(){p()};Q(c,"afterEnter",d),Q(c,"enterCancelled",d),Q(f,"delayLeave",function(t){p=t})}}return o}}},si=h({tag:String,moveClass:String},oi);delete si.mode;var ci={Transition:ai,TransitionGroup:{props:si,render:function(t){for(var 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t.indexOf("-")>-1?$r[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:$r[t]=/HTMLUnknownElement/.test(e.toString())},h(Ut.options.directives,ii),h(Ut.options.components,ci),Ut.prototype.__patch__=rn?ni:y,Ut.prototype.$mount=function(t,e){return t=t&&rn?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,function(t,e,n){t.$el=e,t.$options.render||(t.$options.render=On),vt(t,"beforeMount");var r;return r=function(){t._update(t._render(),n)},new tr(t,r,y,null,!0),n=!1,null==t.$vnode&&(t._isMounted=!0,vt(t,"mounted")),t}(this,t,e)},Ut.nextTick(function(){tn.devtools&&gn&&gn.emit("init",Ut)},0),Ut});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 2480ee88ac3..9e7f29730d5 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -590,24 +590,6 @@ function def (obj, key, val, enumerable) {
   });
 }
 
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
 /*  */
 
 
@@ -725,6 +707,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -765,6 +748,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -941,16 +925,6 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
-var targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -966,8 +940,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1453,8 +1426,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1486,6 +1458,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if ("development" !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1500,6 +1475,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -1848,10 +1843,7 @@ function logError (err, vm, info) {
 /* globals MessageChannel */
 
 var callbacks = [];
-var pending = false;
-
 function flushCallbacks () {
-  pending = false;
   var copies = callbacks.slice(0);
   callbacks.length = 0;
   for (var i = 0; i < copies.length; i++) {
@@ -1859,61 +1851,33 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
 // Determine (macro) Task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
 if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
+  
 } else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
-  var port = channel.port2;
   channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
+  
 } else {
   /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
+  
 }
 
 // Determine MicroTask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
+  
 } else {
   // fallback to macro
-  microTimerFunc = macroTimerFunc;
+  
 }
 
 /**
@@ -1921,36 +1885,6 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
  * the changes are queued using a Task instead of a MicroTask.
  */
 
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
 /*  */
 
 /*  */
@@ -1961,12 +1895,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -2145,7 +2079,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -4392,11 +4329,11 @@ function genCheckboxModel (
   var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
   addProp(el, 'checked',
     "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
   );
   addHandler(el, 'change',
     "var $$a=" + value + "," +
@@ -4413,9 +4350,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var valueBinding = getBindingAttr(el, 'value') || 'null';
@@ -4425,9 +4362,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var selectedVal = "Array.prototype.filter" +
@@ -5821,7 +5758,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
@@ -6111,36 +6048,19 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
 
 {
-  
+  var perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    
+  }
 }
 
 /*  */
@@ -6447,6 +6367,8 @@ function updateComponentListeners (
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -6470,10 +6392,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -6645,97 +6567,9 @@ function callHook (vm, hook) {
 /*  */
 
 
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index$1 = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index$1 = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index$1 = 0; index$1 < queue.length; index$1++) {
-    watcher = queue[index$1];
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if ("development" !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
-    }
-  }
-}
 
+var activatedChildren = [];
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -6747,252 +6581,14 @@ function queueActivatedComponent (vm) {
   activatedChildren.push(vm);
 }
 
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
 /**
  * Push a watcher into the watcher queue.
  * Jobs with duplicate IDs will be skipped unless it's
  * pushed when the queue is being flushed.
  */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index$1 && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
 
 /*  */
 
-var uid$2 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$2; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = function () {};
-      "development" !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this$1.deps[i].removeSub(this$1);
-    }
-    this.active = false;
-  }
-};
-
 /*  */
 
 /*  */
@@ -7406,11 +7002,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index e9847abe29c..cd8eedc953f 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -592,24 +592,6 @@ function def (obj, key, val, enumerable) {
   });
 }
 
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
 /*  */
 
 
@@ -727,6 +709,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -767,6 +750,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -943,16 +927,6 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
-var targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -968,8 +942,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1455,8 +1428,7 @@ function validateComponentName (name) {
       'and must start with a letter.'
     );
   }
-  var lower = name.toLowerCase();
-  if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
     warn(
       'Do not use built-in or reserved HTML elements as component ' +
       'id: ' + name
@@ -1488,6 +1460,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1502,6 +1477,26 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
@@ -1850,10 +1845,7 @@ function logError (err, vm, info) {
 /* globals MessageChannel */
 
 var callbacks = [];
-var pending = false;
-
 function flushCallbacks () {
-  pending = false;
   var copies = callbacks.slice(0);
   callbacks.length = 0;
   for (var i = 0; i < copies.length; i++) {
@@ -1861,61 +1853,33 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
 // Determine (macro) Task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
 if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
+  
 } else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
-  var port = channel.port2;
   channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
+  
 } else {
   /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
+  
 }
 
 // Determine MicroTask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
+  
 } else {
   // fallback to macro
-  microTimerFunc = macroTimerFunc;
+  
 }
 
 /**
@@ -1923,36 +1887,6 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
  * the changes are queued using a Task instead of a MicroTask.
  */
 
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
 /*  */
 
 /*  */
@@ -1963,12 +1897,12 @@ function genClassForVnode (vnode) {
   var childNode = vnode;
   while (isDef(childNode.componentInstance)) {
     childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
+    if (childNode && childNode.data) {
       data = mergeClassData(childNode.data, data);
     }
   }
   while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
+    if (parentNode && parentNode.data) {
       data = mergeClassData(data, parentNode.data);
     }
   }
@@ -2147,7 +2081,10 @@ function getStyle (vnode, checkChild) {
     var childNode = vnode;
     while (childNode.componentInstance) {
       childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
         extend(res, styleData);
       }
     }
@@ -4131,11 +4068,11 @@ function genCheckboxModel (
   var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
   addProp(el, 'checked',
     "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
   );
   addHandler(el, 'change',
     "var $$a=" + value + "," +
@@ -4152,9 +4089,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var valueBinding = getBindingAttr(el, 'value') || 'null';
@@ -4164,9 +4101,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var selectedVal = "Array.prototype.filter" +
@@ -5560,7 +5497,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
@@ -5850,31 +5787,18 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
 
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
+if (process.env.NODE_ENV !== 'production') {
+  var perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    
   }
 }
 
@@ -6184,6 +6108,8 @@ function updateComponentListeners (
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -6207,10 +6133,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -6264,6 +6190,12 @@ function updateChildComponent (
   parentVnode,
   renderChildren
 ) {
+  if (process.env.NODE_ENV !== 'production') {
+    
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren
   var hasChildren = !!(
     renderChildren ||               // has new static slots
     vm.$options._renderChildren ||  // has old static slots
@@ -6311,7 +6243,9 @@ function updateChildComponent (
     vm.$forceUpdate();
   }
 
-  
+  if (process.env.NODE_ENV !== 'production') {
+    
+  }
 }
 
 function isInInactiveTree (vm) {
@@ -6374,97 +6308,9 @@ function callHook (vm, hook) {
 /*  */
 
 
-var MAX_UPDATE_COUNT = 100;
 
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index$1 = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index$1 = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index$1 = 0; index$1 < queue.length; index$1++) {
-    watcher = queue[index$1];
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
-    }
-  }
-}
 
+var activatedChildren = [];
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -6476,254 +6322,14 @@ function queueActivatedComponent (vm) {
   activatedChildren.push(vm);
 }
 
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
 /**
  * Push a watcher into the watcher queue.
  * Jobs with duplicate IDs will be skipped unless it's
  * pushed when the queue is being flushed.
  */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index$1 && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
 
 /*  */
 
-var uid$2 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$2; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = function () {};
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this$1.deps[i].removeSub(this$1);
-    }
-    this.active = false;
-  }
-};
-
 /*  */
 
 /*  */
@@ -7137,11 +6743,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -8275,11 +7881,12 @@ TemplateRenderer.prototype.renderState = function renderState (context, options)
   var ref = options || {};
     var contextKey = ref.contextKey; if ( contextKey === void 0 ) contextKey = 'state';
     var windowKey = ref.windowKey; if ( windowKey === void 0 ) windowKey = '__INITIAL_STATE__';
+  var state = serialize(context[contextKey], { isJSON: true });
   var autoRemove = process.env.NODE_ENV === 'production'
     ? ';(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
     : '';
   return context[contextKey]
-    ? ("<script>window." + windowKey + "=" + (serialize(context[contextKey], { isJSON: true })) + autoRemove + "</script>")
+    ? ("<script>window." + windowKey + "=" + state + autoRemove + "</script>")
     : ''
 };
 
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 5149cdc3f8b..9c3b712ccc6 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.10",
+  "version": "2.5.11",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index f9d3dd16816..f0c40368247 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -186,17 +186,9 @@ var camelize = cached(function (str) {
 /**
  * Capitalize a string.
  */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
 
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
+
+
 
 /**
  * Simple bind, faster than native
@@ -605,7 +597,7 @@ var isSpecialTag = makeMap('script,style,template', true);
 function parseComponent (
   content,
   options
- ) {
+) {
   if ( options === void 0 ) options = {};
 
   var sfc = {
@@ -635,7 +627,7 @@ function parseComponent (
 
           cumulated[name] = value || true;
           return cumulated
-        }, Object.create(null))
+        }, {})
       };
       if (isSpecialTag(tag)) {
         checkAttrs(currentBlock, attrs);
@@ -778,7 +770,7 @@ var isServerRendering = function () {
 };
 
 // detect devtools
-
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
 
 /* istanbul ignore next */
 function isNative (Ctor) {
@@ -789,29 +781,13 @@ var hasSymbol =
   typeof Symbol !== 'undefined' && isNative(Symbol) &&
   typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
 
-var _Set;
 /* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
-  _Set = Set;
+  
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
+  
 }
 
 var ASSET_TYPES = [
@@ -840,6 +816,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -880,6 +857,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -1127,8 +1105,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -3450,11 +3427,11 @@ function genCheckboxModel (
   var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
   addProp(el, 'checked',
     "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
   );
   addHandler(el, 'change',
     "var $$a=" + value + "," +
@@ -3471,9 +3448,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var valueBinding = getBindingAttr(el, 'value') || 'null';
@@ -3483,9 +3460,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var selectedVal = "Array.prototype.filter" +
@@ -4532,7 +4509,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 326dcc03200..8ff77bf0818 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -143,17 +143,9 @@ var camelize = cached(function (str) {
 /**
  * Capitalize a string.
  */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
 
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
+
+
 
 /**
  * Simple bind, faster than native
@@ -562,7 +554,7 @@ var isSpecialTag = makeMap('script,style,template', true);
 function parseComponent (
   content,
   options
- ) {
+) {
   if ( options === void 0 ) options = {};
 
   var sfc = {
@@ -592,7 +584,7 @@ function parseComponent (
 
           cumulated[name] = value || true;
           return cumulated
-        }, Object.create(null))
+        }, {})
       };
       if (isSpecialTag(tag)) {
         checkAttrs(currentBlock, attrs);
@@ -735,7 +727,7 @@ var isServerRendering = function () {
 };
 
 // detect devtools
-
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
 
 /* istanbul ignore next */
 function isNative (Ctor) {
@@ -746,29 +738,13 @@ var hasSymbol =
   typeof Symbol !== 'undefined' && isNative(Symbol) &&
   typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
 
-var _Set;
 /* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
-  _Set = Set;
+  
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
+  
 }
 
 var ASSET_TYPES = [
@@ -797,6 +773,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -837,6 +814,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -1084,8 +1062,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -3052,11 +3029,11 @@ function genCheckboxModel (
   var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
   addProp(el, 'checked',
     "Array.isArray(" + value + ")" +
-      "?_i(" + value + "," + valueBinding + ")>-1" + (
-        trueValueBinding === 'true'
-          ? (":(" + value + ")")
-          : (":_q(" + value + "," + trueValueBinding + ")")
-      )
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
   );
   addHandler(el, 'change',
     "var $$a=" + value + "," +
@@ -3073,9 +3050,9 @@ function genCheckboxModel (
 }
 
 function genRadioModel (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var valueBinding = getBindingAttr(el, 'value') || 'null';
@@ -3085,9 +3062,9 @@ function genRadioModel (
 }
 
 function genSelect (
-    el,
-    value,
-    modifiers
+  el,
+  value,
+  modifiers
 ) {
   var number = modifiers && modifiers.number;
   var selectedVal = "Array.prototype.filter" +
@@ -4134,7 +4111,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 22302635532..e4ac785654e 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.10",
+  "version": "2.5.11",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 9c01684762445c822956f5764400d14384804db6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Dec 2017 11:56:02 -0500
Subject: [PATCH 300/911] build: release 2.5.11

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index fe02595618d..e2d96e62294 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.10",
+  "version": "2.5.11",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 2cda61adc14..d9c84be31d4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.10",
+  "version": "2.5.11",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From d3c30a2e6044a5f7e2d77ac4dd9f357606e3c18d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Dec 2017 14:13:27 -0500
Subject: [PATCH 301/911] chore: update sponsor logo

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 88dee004705..64431a1b24a 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -117,8 +117,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="http://www.frontenddevelopermeetups.com/" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-meetups.png">
+        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
       <td align="center" valign="middle">
diff --git a/README.md b/README.md
index 7910db58487..5c12d1ddfd0 100644
--- a/README.md
+++ b/README.md
@@ -125,8 +125,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
     <tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="http://www.frontenddevelopermeetups.com/" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-meetups.png">
+        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
+          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
       <td align="center" valign="middle">

From 3b7c05d0cc1f645b4ace5f6928f457a563b4af8a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Dec 2017 21:31:52 -0500
Subject: [PATCH 302/911] chore: update sponsor logo

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 64431a1b24a..eedf598aa99 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -107,8 +107,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
     <tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://component.io/" target="_blank">
-          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
+        <a href="https://anymod.com/" target="_blank">
+          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
         </a>
       </td>
       <td align="center" valign="middle">
diff --git a/README.md b/README.md
index 5c12d1ddfd0..92267744ef1 100644
--- a/README.md
+++ b/README.md
@@ -112,8 +112,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://component.io/" target="_blank">
-          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/component_io.png">
+        <a href="https://anymod.com/" target="_blank">
+          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
         </a>
       </td>
       <td align="center" valign="middle">

From 8be29e2f193c9503aed2e76e3775e157dbebb576 Mon Sep 17 00:00:00 2001
From: toBeTheLight <yl1991web@126.com>
Date: Sat, 16 Dec 2017 14:47:44 -0600
Subject: [PATCH 303/911] refactor: return is better when inject has no value
 (#7258)

---
 src/core/util/options.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 07d9cfc0b84..ff58cd30834 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -334,6 +334,7 @@ function validatePropObject (
  */
 function normalizeInject (options: Object, vm: ?Component) {
   const inject = options.inject
+  if (!inject) return
   const normalized = options.inject = {}
   if (Array.isArray(inject)) {
     for (let i = 0; i < inject.length; i++) {
@@ -346,7 +347,7 @@ function normalizeInject (options: Object, vm: ?Component) {
         ? extend({ from: key }, val)
         : { from: val }
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       `Invalid value for option "inject": expected an Array or an Object, ` +
       `but got ${toRawType(inject)}.`,

From f493715f39bab518c4d0a7abfa89d593e4f226dd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 18 Dec 2017 12:03:11 -0500
Subject: [PATCH 304/911] chore: update sponsors/backers

---
 BACKERS.md | 40 +++++++++++++++-------------------------
 README.md  | 21 ++++++++-------------
 2 files changed, 23 insertions(+), 38 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index eedf598aa99..ebec47fb224 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -50,11 +50,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://deepstreamhub.com" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://jsfiddle.net/">
           <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
@@ -75,14 +70,14 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
         </a>
       </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://starter.someline.com/">
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
         </a>
       </td>
+    </tr>
+    <tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://monterail.com/" target="_blank">
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
@@ -103,14 +98,14 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
         </a>
       </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://anymod.com/" target="_blank">
           <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
         </a>
       </td>
+    </tr>
+    <tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.xfive.co/" target="_blank">
           <img width="100px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
@@ -127,8 +122,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://themeforest.net/item/clear-bootstrap-vuejs-admin-template/19339739?ref=jyostna&utm_source=vuejs&utm_campaign=vuejs_patreon&clickthrough_id=1113830525&redirect_back=true" target="_blank">
-          <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejsadmin.png">
+        <a href="https://vuetifyjs.com/" target="_blank">
+          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
     </tr>
@@ -289,12 +284,12 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik
+- errorrik 
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
 - HARRI J SALOMAA
-- tjkoury
+- tjkoury 
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -320,13 +315,13 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解
+- 叶解 
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
 - Isaac Sant
 - Milos Stojanovic
-- 4
+- 4 
 - The Graphic Design School
 - Christian Griffith
 - Jarek Tkaczyk
@@ -342,12 +337,10 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Cheng-Wei Chien
 - Duncan J Kenzie
 - Mike Margerum
-- Cruz Eduardo Reveles Caldera
 - Guy Gavergun
-- Edithvale
+- Edithvale 
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
-- Polo Rith
 - Chengzhi Yin
 - Dan Barrett
 - Zoran Knezevic
@@ -355,17 +348,14 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Pierre Vanhulst
 - Vincent Gabriel
 - Shinji Yamada
-- Michael Mazurczak
 - Chris Anderson
 - Jon Hobbs-Smith
 - Chez Tschetter
 - Akiho Nagao
 - Asaf Yishai
-- Diana Espino
 - Alexandre Madurell
 - Estebe Anthony
 - Haim Yulzari
-- Blake Camobell
 - David McGuigan
 - Jeremy Tan
 - Jim Raden
@@ -395,7 +385,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Cliff Hess
 - Joe Ray Gregory
 - Johnny Eshan
-- Alexander Karelas
 - Kamil Ocean
 - Orney Enrique martinez Said
 - Tom Striker
@@ -403,8 +392,9 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - RADD Creative
 - Maegan Wilson
 - Rua Cura D'ars
-- Arthur Tyukayev
 - Richard Simpson
+- Charles McKeever
+- Alok Pant
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 92267744ef1..1b23a94e993 100644
--- a/README.md
+++ b/README.md
@@ -58,11 +58,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://deepstreamhub.com" target="_blank">
-          <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/deepstream.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://jsfiddle.net/">
           <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
@@ -88,14 +83,14 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
         </a>
       </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="http://monterail.com/" target="_blank">
           <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
         </a>
       </td>
+    </tr>
+    <tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.2mhost.com/" target="_blank">
           <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
@@ -121,22 +116,22 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="80px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
         </a>
       </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.frontenddeveloperlove.com/" target="_blank">
           <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
+    </tr>
+    <tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://onsen.io/vue/" target="_blank">
           <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://themeforest.net/item/clear-bootstrap-vuejs-admin-template/19339739?ref=jyostna&utm_source=vuejs.org&utm_campaign=vuejs_patreon" target="_blank">
-          <img width="150px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejsadmin.png">
+        <a href="https://vuetify.com" target="_blank">
+          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
     </tr>

From 996eb00a0a0933376c9364c2d187e2bf0512ff0d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 18 Dec 2017 12:55:02 -0500
Subject: [PATCH 305/911] feat: auto cache inline prop literals to avoid child
 re-render

---
 flow/component.js                             |  3 ++
 src/compiler/parser/index.js                  | 15 ++++++++
 .../render-helpers/create-inline-computed.js  | 28 +++++++++++++++
 src/core/instance/render-helpers/index.js     |  2 ++
 src/core/instance/state.js                    |  1 +
 test/unit/features/options/props.spec.js      | 34 +++++++++++++++++++
 6 files changed, 83 insertions(+)
 create mode 100644 src/core/instance/render-helpers/create-inline-computed.js

diff --git a/flow/component.js b/flow/component.js
index 9fbade0b6e6..4159677777c 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -69,6 +69,7 @@ declare interface Component {
   _staticTrees: ?Array<VNode>; // v-once cached trees
   _hasHookEvent: boolean;
   _provided: ?Object;
+  _inlineComputed: ?{ [key: string]: Watcher }; // inline computed watchers for literal props
 
   // private methods
 
@@ -129,6 +130,8 @@ declare interface Component {
   _k: (eventKeyCode: number, key: string, builtInAlias?: number | Array<number>, eventKeyName?: string) => ?boolean;
   // resolve scoped slots
   _u: (scopedSlots: ScopedSlotsData, res?: Object) => { [key: string]: Function };
+  // create / return value from inline computed
+  _a: (id: number, getter: Function) => any;
 
   // SSR specific
   _ssrNode: Function;
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 7f9bc1b57e5..a2476dbb8a5 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -29,16 +29,20 @@ const argRE = /:(.*)$/
 const bindRE = /^:|^v-bind:/
 const modifierRE = /\.[^.]+/g
 
+const literalValueRE = /^(\{.*\}|\[.*\])$/
+
 const decodeHTMLCached = cached(he.decode)
 
 // configurable state
 export let warn: any
+let literalPropId
 let delimiters
 let transforms
 let preTransforms
 let postTransforms
 let platformIsPreTag
 let platformMustUseProp
+let platformIsReservedTag
 let platformGetTagNamespace
 
 type Attr = { name: string; value: string };
@@ -66,9 +70,11 @@ export function parse (
   options: CompilerOptions
 ): ASTElement | void {
   warn = options.warn || baseWarn
+  literalPropId = 0
 
   platformIsPreTag = options.isPreTag || no
   platformMustUseProp = options.mustUseProp || no
+  platformIsReservedTag = options.isReservedTag || no
   platformGetTagNamespace = options.getTagNamespace || no
 
   transforms = pluckModuleFunction(options.modules, 'transformNode')
@@ -529,6 +535,15 @@ function processAttrs (el) {
             )
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = `_a(${literalPropId++},function(){return ${value}})`
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
diff --git a/src/core/instance/render-helpers/create-inline-computed.js b/src/core/instance/render-helpers/create-inline-computed.js
new file mode 100644
index 00000000000..8413eb0e9a2
--- /dev/null
+++ b/src/core/instance/render-helpers/create-inline-computed.js
@@ -0,0 +1,28 @@
+/* @flow */
+
+import { noop } from 'shared/util'
+import Watcher from 'core/observer/watcher'
+
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+export function createInlineComputed (id: string, getter: Function): any {
+  const vm: Component = this
+  const watchers = vm._inlineComputed || (vm._inlineComputed = {})
+  const cached = watchers[id]
+  if (cached) {
+    return cached.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true })
+    return watchers[id].value
+  }
+}
diff --git a/src/core/instance/render-helpers/index.js b/src/core/instance/render-helpers/index.js
index 38414a9ab53..ddd7458d9eb 100644
--- a/src/core/instance/render-helpers/index.js
+++ b/src/core/instance/render-helpers/index.js
@@ -10,6 +10,7 @@ import { bindObjectProps } from './bind-object-props'
 import { renderStatic, markOnce } from './render-static'
 import { bindObjectListeners } from './bind-object-listeners'
 import { resolveScopedSlots } from './resolve-slots'
+import { createInlineComputed } from './create-inline-computed'
 
 export function installRenderHelpers (target: any) {
   target._o = markOnce
@@ -27,4 +28,5 @@ export function installRenderHelpers (target: any) {
   target._e = createEmptyVNode
   target._u = resolveScopedSlots
   target._g = bindObjectListeners
+  target._a = createInlineComputed
 }
diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 72d9edd84f8..e39fb2e0a5e 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -47,6 +47,7 @@ export function proxy (target: Object, sourceKey: string, key: string) {
 
 export function initState (vm: Component) {
   vm._watchers = []
+  vm._inlineComputed = null
   const opts = vm.$options
   if (opts.props) initProps(vm, opts.props)
   if (opts.methods) initMethods(vm, opts.methods)
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index 42acbe6b88b..d7db3c1fa1f 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -529,4 +529,38 @@ describe('Options props', () => {
     expect(`Invalid key "reqquired" in validation rules object for prop "value".`).toHaveBeenWarned()
     expect(`Invalid key "deafult" in validation rules object for prop "count".`).toHaveBeenWarned()
   })
+
+  it('should not trigger re-render on non-changed inline literals', done => {
+    const updated = jasmine.createSpy('updated')
+    const vm = new Vue({
+      data: {
+        n: 1,
+        m: 1
+      },
+      template: `
+        <div id="app">
+          {{ n }} {{ m }} <foo :a="{ n: 1 }" :b="{ n: n }"/>
+        </div>
+      `,
+      components: {
+        foo: {
+          props: ['a', 'b'],
+          updated,
+          template: `<div>{{ a.n }} {{ b.n }}</div>`
+        }
+      }
+    }).$mount()
+
+    expect(vm.$el.textContent).toContain('1 1 1 1')
+    vm.n++ // literals that actually contain changed reactive data should trigger update
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toContain('2 1 1 2')
+      expect(updated.calls.count()).toBe(1)
+    }).then(() => {
+      vm.m++ // changing data that does not affect any literals should not trigger update
+    }).then(() => {
+      expect(vm.$el.textContent).toContain('2 2 1 2')
+      expect(updated.calls.count()).toBe(1)
+    }).then(done)
+  })
 })

From 248803146c990ec12c86b734169582e14b24b0ca Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Sep 2017 03:01:54 -0400
Subject: [PATCH 306/911] refactor(compiler): move postTransforms to after
 children are processed

---
 flow/compiler.js             | 3 +++
 src/compiler/parser/index.js | 9 +++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index 81e1c6ebe64..cc356979e54 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -37,9 +37,12 @@ declare type CompiledResult = {
 };
 
 declare type ModuleOptions = {
+  // transform an AST node before any attributes are processed
   // returning an ASTElement from pre/transforms replaces the element
   preTransformNode: (el: ASTElement) => ?ASTElement;
+  // transform an AST node after built-ins like v-if, v-for are processed
   transformNode: (el: ASTElement) => ?ASTElement;
+  // transform an AST node after its children have been processed
   // cannot return replacement in postTransform because tree is already finalized
   postTransformNode: (el: ASTElement) => void;
   genData: (el: ASTElement) => string; // generate extra data string for an element
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index a2476dbb8a5..851db1c6b31 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -221,10 +221,6 @@ export function parse (
       } else {
         endPre(element)
       }
-      // apply post-transforms
-      for (let i = 0; i < postTransforms.length; i++) {
-        postTransforms[i](element, options)
-      }
     },
 
     end () {
@@ -238,6 +234,11 @@ export function parse (
       stack.length -= 1
       currentParent = stack[stack.length - 1]
       endPre(element)
+
+      // apply post-transforms
+      for (let i = 0; i < postTransforms.length; i++) {
+        postTransforms[i](element, options)
+      }
     },
 
     chars (text: string) {

From 5254ee31c481ac16cf8f822b0b4df0f7815ffff3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Sep 2017 05:34:58 -0400
Subject: [PATCH 307/911] feat(weex): recycle-list support WIP

---
 flow/compiler.js                              |  1 +
 src/compiler/parser/index.js                  | 26 +++++------
 src/compiler/parser/text-parser.js            | 22 +++++++--
 src/platforms/web/compiler/modules/class.js   |  4 +-
 src/platforms/web/compiler/modules/style.js   |  4 +-
 src/platforms/weex/compiler/modules/class.js  |  2 +-
 src/platforms/weex/compiler/modules/index.js  |  2 +
 .../compiler/modules/recycle-list/index.js    | 46 +++++++++++++++++++
 src/platforms/weex/compiler/modules/style.js  |  2 +-
 9 files changed, 85 insertions(+), 24 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/index.js

diff --git a/flow/compiler.js b/flow/compiler.js
index cc356979e54..1b4c3e6cc87 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -155,6 +155,7 @@ declare type ASTExpression = {
   type: 2;
   expression: string;
   text: string;
+  tokens: Array<string | Object>;
   static?: boolean;
   // 2.4 ssr optimization
   ssrOptimizability?: number;
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 851db1c6b31..61fdecd0c7b 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -98,7 +98,7 @@ export function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false
@@ -106,6 +106,10 @@ export function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false
     }
+    // apply post-transforms
+    for (let i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options)
+    }
   }
 
   parseHTML(template, {
@@ -219,7 +223,7 @@ export function parse (
         currentParent = element
         stack.push(element)
       } else {
-        endPre(element)
+        closeElement(element)
       }
     },
 
@@ -233,12 +237,7 @@ export function parse (
       // pop stack
       stack.length -= 1
       currentParent = stack[stack.length - 1]
-      endPre(element)
-
-      // apply post-transforms
-      for (let i = 0; i < postTransforms.length; i++) {
-        postTransforms[i](element, options)
-      }
+      closeElement(element)
     },
 
     chars (text: string) {
@@ -270,11 +269,12 @@ export function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : ''
       if (text) {
-        let expression
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        let res
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text
           })
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -571,8 +571,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        const expression = parseText(value, delimiters)
-        if (expression) {
+        const res = parseText(value, delimiters)
+        if (res) {
           warn(
             `${name}="${value}": ` +
             'Interpolation inside attributes has been removed. ' +
diff --git a/src/compiler/parser/text-parser.js b/src/compiler/parser/text-parser.js
index 10613d11e0c..284fca33bf4 100644
--- a/src/compiler/parser/text-parser.js
+++ b/src/compiler/parser/text-parser.js
@@ -12,30 +12,42 @@ const buildRegex = cached(delimiters => {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 })
 
+type TextParseResult = {
+  expression: string,
+  tokens: Array<string | { '@binding': string }>
+}
+
 export function parseText (
   text: string,
   delimiters?: [string, string]
-): string | void {
+): TextParseResult | void {
   const tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE
   if (!tagRE.test(text)) {
     return
   }
   const tokens = []
+  const rawTokens = []
   let lastIndex = tagRE.lastIndex = 0
-  let match, index
+  let match, index, tokenValue
   while ((match = tagRE.exec(text))) {
     index = match.index
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)))
+      rawTokens.push(tokenValue = text.slice(lastIndex, index))
+      tokens.push(JSON.stringify(tokenValue))
     }
     // tag token
     const exp = parseFilters(match[1].trim())
     tokens.push(`_s(${exp})`)
+    rawTokens.push({ '@binding': exp })
     lastIndex = index + match[0].length
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)))
+    rawTokens.push(tokenValue = text.slice(lastIndex))
+    tokens.push(JSON.stringify(tokenValue))
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
diff --git a/src/platforms/web/compiler/modules/class.js b/src/platforms/web/compiler/modules/class.js
index eb93895fb43..ffdca250991 100644
--- a/src/platforms/web/compiler/modules/class.js
+++ b/src/platforms/web/compiler/modules/class.js
@@ -11,8 +11,8 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
   const warn = options.warn || baseWarn
   const staticClass = getAndRemoveAttr(el, 'class')
   if (process.env.NODE_ENV !== 'production' && staticClass) {
-    const expression = parseText(staticClass, options.delimiters)
-    if (expression) {
+    const res = parseText(staticClass, options.delimiters)
+    if (res) {
       warn(
         `class="${staticClass}": ` +
         'Interpolation inside attributes has been removed. ' +
diff --git a/src/platforms/web/compiler/modules/style.js b/src/platforms/web/compiler/modules/style.js
index 425c50540e2..2722b92b44d 100644
--- a/src/platforms/web/compiler/modules/style.js
+++ b/src/platforms/web/compiler/modules/style.js
@@ -14,8 +14,8 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
   if (staticStyle) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
-      const expression = parseText(staticStyle, options.delimiters)
-      if (expression) {
+      const res = parseText(staticStyle, options.delimiters)
+      if (res) {
         warn(
           `style="${staticStyle}": ` +
           'Interpolation inside attributes has been removed. ' +
diff --git a/src/platforms/weex/compiler/modules/class.js b/src/platforms/weex/compiler/modules/class.js
index fe910fd6573..371a08ea2f5 100644
--- a/src/platforms/weex/compiler/modules/class.js
+++ b/src/platforms/weex/compiler/modules/class.js
@@ -55,7 +55,7 @@ function parseStaticClass (staticClass: ?string, options: CompilerOptions): Stat
       const result = parseText(name, options.delimiters)
       if (result) {
         dynamic = true
-        return result
+        return result.expression
       }
       return JSON.stringify(name)
     })
diff --git a/src/platforms/weex/compiler/modules/index.js b/src/platforms/weex/compiler/modules/index.js
index ad7879165ae..ac17809e7d4 100644
--- a/src/platforms/weex/compiler/modules/index.js
+++ b/src/platforms/weex/compiler/modules/index.js
@@ -2,8 +2,10 @@ import klass from './class'
 import style from './style'
 import props from './props'
 import append from './append'
+import recycleList from './recycle-list/index'
 
 export default [
+  recycleList,
   klass,
   style,
   props,
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
new file mode 100644
index 00000000000..ac3a8f74638
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -0,0 +1,46 @@
+/* @flow */
+
+import { addAttr } from 'compiler/helpers'
+
+let currentRecycleList = null
+
+function preTransformNode (el: ASTElement) {
+  if (el.tag === 'recycle-list') {
+    currentRecycleList = el
+  }
+}
+
+function transformNode (el: ASTElement) {
+  if (currentRecycleList) {
+    // TODO
+  }
+}
+
+function postTransformNode (el: ASTElement) {
+  if (currentRecycleList) {
+    // <text>: transform children text into value attr
+    if (el.tag === 'text') {
+      addAttr(el, 'value', genText(el.children[0]))
+      el.children = []
+      el.plain = false
+    }
+  }
+  if (el === currentRecycleList) {
+    currentRecycleList = null
+  }
+}
+
+function genText (node) {
+  const value = node.type === 3
+    ? node.text
+    : node.tokens.length === 1
+      ? node.tokens[0]
+      : node.tokens
+  return JSON.stringify(value)
+}
+
+export default {
+  preTransformNode,
+  transformNode,
+  postTransformNode
+}
diff --git a/src/platforms/weex/compiler/modules/style.js b/src/platforms/weex/compiler/modules/style.js
index 7c428091e8a..eb3c93a067a 100644
--- a/src/platforms/weex/compiler/modules/style.js
+++ b/src/platforms/weex/compiler/modules/style.js
@@ -64,7 +64,7 @@ function parseStaticStyle (staticStyle: ?string, options: CompilerOptions): Stat
       const dynamicValue = parseText(value, options.delimiters)
       if (dynamicValue) {
         dynamic = true
-        return key + ':' + dynamicValue
+        return key + ':' + dynamicValue.expression
       }
       return key + ':' + JSON.stringify(value)
     }).filter(result => result)

From 08660e876d5fbdbeed7e1c779c902969814af3e6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Sep 2017 05:48:01 -0400
Subject: [PATCH 308/911] refactor: fix types

---
 src/platforms/weex/compiler/modules/recycle-list/index.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index ac3a8f74638..1163e4da4a0 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -33,9 +33,11 @@ function postTransformNode (el: ASTElement) {
 function genText (node) {
   const value = node.type === 3
     ? node.text
-    : node.tokens.length === 1
-      ? node.tokens[0]
-      : node.tokens
+    : node.type === 2
+      ? node.tokens.length === 1
+        ? node.tokens[0]
+        : node.tokens
+      : ''
   return JSON.stringify(value)
 }
 

From c104cc582d647f5e10b90563cb80907b9e30ec12 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Sep 2017 05:57:00 -0400
Subject: [PATCH 309/911] feat(weex): split text into separate module

---
 .../compiler/modules/recycle-list/index.js    | 17 ++------------
 .../compiler/modules/recycle-list/text.js     | 22 +++++++++++++++++++
 2 files changed, 24 insertions(+), 15 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/text.js

diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 1163e4da4a0..82cc6e8f605 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { addAttr } from 'compiler/helpers'
+import { transformText } from './text'
 
 let currentRecycleList = null
 
@@ -20,9 +20,7 @@ function postTransformNode (el: ASTElement) {
   if (currentRecycleList) {
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
-      addAttr(el, 'value', genText(el.children[0]))
-      el.children = []
-      el.plain = false
+      transformText(el)
     }
   }
   if (el === currentRecycleList) {
@@ -30,17 +28,6 @@ function postTransformNode (el: ASTElement) {
   }
 }
 
-function genText (node) {
-  const value = node.type === 3
-    ? node.text
-    : node.type === 2
-      ? node.tokens.length === 1
-        ? node.tokens[0]
-        : node.tokens
-      : ''
-  return JSON.stringify(value)
-}
-
 export default {
   preTransformNode,
   transformNode,
diff --git a/src/platforms/weex/compiler/modules/recycle-list/text.js b/src/platforms/weex/compiler/modules/recycle-list/text.js
new file mode 100644
index 00000000000..a950aff93a9
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/text.js
@@ -0,0 +1,22 @@
+/* @flow */
+
+import { addAttr } from 'compiler/helpers'
+
+function genText (node: ASTNode) {
+  const value = node.type === 3
+    ? node.text
+    : node.type === 2
+      ? node.tokens.length === 1
+        ? node.tokens[0]
+        : node.tokens
+      : ''
+  return JSON.stringify(value)
+}
+
+export function transformText (el: ASTElement) {
+  // weex <text> can only contain text, so the parser
+  // always generates a single child.
+  addAttr(el, 'value', genText(el.children[0]))
+  el.children = []
+  el.plain = false
+}

From 8b893c13d6ffa79f294fec76a228509ec48e4706 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Sat, 16 Sep 2017 13:13:23 +0800
Subject: [PATCH 310/911] feat($compiler): supports compiling v-bind to the
 weex native directive in recycle-list

---
 src/compiler/codegen/index.js                 | 11 +++++--
 src/compiler/helpers.js                       |  2 +-
 .../compiler/modules/recycle-list/index.js    |  2 ++
 .../compiler/modules/recycle-list/text.js     |  8 +++--
 .../compiler/modules/recycle-list/v-bind.js   | 31 +++++++++++++++++++
 5 files changed, 48 insertions(+), 6 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/v-bind.js

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index e5985d90287..59b14ea7917 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -483,15 +483,22 @@ function genComponent (
   })`
 }
 
-function genProps (props: Array<{ name: string, value: string }>): string {
+function genProps (props: Array<{ name: string, value: any }>): string {
   let res = ''
   for (let i = 0; i < props.length; i++) {
     const prop = props[i]
-    res += `"${prop.name}":${transformSpecialNewlines(prop.value)},`
+    res += `"${prop.name}":${generateValue(prop.value)},`
   }
   return res.slice(0, -1)
 }
 
+function generateValue (value) {
+  if (typeof value === 'string') {
+    return transformSpecialNewlines(value)
+  }
+  return JSON.stringify(value)
+}
+
 // #3895, #4268
 function transformSpecialNewlines (text: string): string {
   return text
diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 1349fa364f4..ebcd5708bb7 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -20,7 +20,7 @@ export function addProp (el: ASTElement, name: string, value: string) {
   (el.props || (el.props = [])).push({ name, value })
 }
 
-export function addAttr (el: ASTElement, name: string, value: string) {
+export function addAttr (el: ASTElement, name: string, value: any) {
   (el.attrs || (el.attrs = [])).push({ name, value })
 }
 
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 82cc6e8f605..0fe7bb138a3 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,6 +1,7 @@
 /* @flow */
 
 import { transformText } from './text'
+import { transformVBind } from './v-bind'
 
 let currentRecycleList = null
 
@@ -22,6 +23,7 @@ function postTransformNode (el: ASTElement) {
     if (el.tag === 'text') {
       transformText(el)
     }
+    transformVBind(el)
   }
   if (el === currentRecycleList) {
     currentRecycleList = null
diff --git a/src/platforms/weex/compiler/modules/recycle-list/text.js b/src/platforms/weex/compiler/modules/recycle-list/text.js
index a950aff93a9..fb72c81b555 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/text.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/text.js
@@ -16,7 +16,9 @@ function genText (node: ASTNode) {
 export function transformText (el: ASTElement) {
   // weex <text> can only contain text, so the parser
   // always generates a single child.
-  addAttr(el, 'value', genText(el.children[0]))
-  el.children = []
-  el.plain = false
+  if (el.children.length) {
+    addAttr(el, 'value', genText(el.children[0]))
+    el.children = []
+    el.plain = false
+  }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
new file mode 100644
index 00000000000..62bb0ac6a21
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -0,0 +1,31 @@
+/* @flow */
+
+import { getAndRemoveAttr, addAttr } from 'compiler/helpers'
+
+function isBindingAttr (name) {
+  return /^(v\-bind)?\:/.test(name)
+}
+
+function parseRealName (name: string): string {
+  return name.replace(/^(v\-bind)?\:/, '')
+}
+
+export function transformVBind (el: ASTElement) {
+  if (!el.attrsList.length) {
+    return
+  }
+  el.attrsList.forEach(attr => {
+    // console.log('is binding attr:', attr.name, isBindingAttr(attr.name))
+    if (isBindingAttr(attr.name)) {
+      const realName: string = parseRealName(attr.name)
+      const binding = getAndRemoveAttr(el, attr.name)
+      if (el.attrs) {
+        el.attrs = el.attrs.filter(at => at.name !== realName) // omit duplicated
+      }
+      getAndRemoveAttr(el, realName)
+      addAttr(el, realName, { '@binding': binding })
+    }
+  })
+  el.hasBindings = false
+  // el.plain = true
+}

From 7ad368ebb6987bd4044f9df184d73ce14ca680f2 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Sat, 16 Sep 2017 14:59:23 +0800
Subject: [PATCH 311/911] feat(compile): supports compiling v-if to the weex
 native directive

---
 flow/compiler.js                              |  6 ++--
 .../compiler/modules/recycle-list/index.js    |  4 ++-
 .../compiler/modules/recycle-list/v-bind.js   | 19 +++++-------
 .../compiler/modules/recycle-list/v-if.js     | 29 +++++++++++++++++++
 4 files changed, 42 insertions(+), 16 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/v-if.js

diff --git a/flow/compiler.js b/flow/compiler.js
index 1b4c3e6cc87..21f70d046d3 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -76,8 +76,8 @@ declare type ASTNode = ASTElement | ASTText | ASTExpression;
 declare type ASTElement = {
   type: 1;
   tag: string;
-  attrsList: Array<{ name: string; value: string }>;
-  attrsMap: { [key: string]: string | null };
+  attrsList: Array<{ name: string; value: any }>;
+  attrsMap: { [key: string]: any };
   parent: ASTElement | void;
   children: Array<ASTNode>;
 
@@ -90,7 +90,7 @@ declare type ASTElement = {
   hasBindings?: boolean;
 
   text?: string;
-  attrs?: Array<{ name: string; value: string }>;
+  attrs?: Array<{ name: string; value: any }>;
   props?: Array<{ name: string; value: string }>;
   plain?: boolean;
   pre?: true;
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 0fe7bb138a3..bb9d438d462 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -2,6 +2,7 @@
 
 import { transformText } from './text'
 import { transformVBind } from './v-bind'
+import { transformVIf } from './v-if'
 
 let currentRecycleList = null
 
@@ -14,6 +15,8 @@ function preTransformNode (el: ASTElement) {
 function transformNode (el: ASTElement) {
   if (currentRecycleList) {
     // TODO
+    transformVIf(el)
+    transformVBind(el)
   }
 }
 
@@ -23,7 +26,6 @@ function postTransformNode (el: ASTElement) {
     if (el.tag === 'text') {
       transformText(el)
     }
-    transformVBind(el)
   }
   if (el === currentRecycleList) {
     currentRecycleList = null
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
index 62bb0ac6a21..f7836c8c214 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -1,31 +1,26 @@
 /* @flow */
 
+import { camelize } from 'shared/util'
 import { getAndRemoveAttr, addAttr } from 'compiler/helpers'
 
-function isBindingAttr (name) {
+function isBindingAttr (name: string): boolean {
   return /^(v\-bind)?\:/.test(name)
 }
 
-function parseRealName (name: string): string {
-  return name.replace(/^(v\-bind)?\:/, '')
+function parseAttrName (name: string): string {
+  return camelize(name.replace(/^(v\-bind)?\:/, ''))
 }
 
 export function transformVBind (el: ASTElement) {
-  if (!el.attrsList.length) {
+  if (!el.attrsList || !el.attrsList.length) {
     return
   }
   el.attrsList.forEach(attr => {
-    // console.log('is binding attr:', attr.name, isBindingAttr(attr.name))
     if (isBindingAttr(attr.name)) {
-      const realName: string = parseRealName(attr.name)
+      const name: string = parseAttrName(attr.name)
       const binding = getAndRemoveAttr(el, attr.name)
-      if (el.attrs) {
-        el.attrs = el.attrs.filter(at => at.name !== realName) // omit duplicated
-      }
-      getAndRemoveAttr(el, realName)
-      addAttr(el, realName, { '@binding': binding })
+      addAttr(el, name, { '@binding': binding })
     }
   })
   el.hasBindings = false
-  // el.plain = true
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
new file mode 100644
index 00000000000..c21f70ad2f7
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -0,0 +1,29 @@
+/* @flow */
+
+import { getAndRemoveAttr, addAttr } from 'compiler/helpers'
+
+function isConditionAttr (name: string): boolean {
+  return /^v\-if|v\-else|v\-else\-if/.test(name)
+}
+
+export function transformVIf (el: ASTElement) {
+  for (const attr in el.attrsMap) {
+    if (!isConditionAttr(attr)) {
+      continue
+    }
+    const binding = getAndRemoveAttr(el, attr)
+    switch (attr) {
+      case 'v-if': {
+        addAttr(el, '[[match]]', binding)
+        el.attrsMap['[[match]]'] = binding
+        el.attrsList.push({ name: '[[match]]', value: binding })
+        delete el.attrsMap[attr]
+        delete el.if
+        delete el.ifConditions
+        break
+      }
+
+      // TODO: support v-else and v-else-if
+    }
+  }
+}

From 9bd1483803d046877bef4f7adf1d3a942085ea1b Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Sat, 16 Sep 2017 15:30:32 +0800
Subject: [PATCH 312/911] feat($compiler): supports compiling v-for to the weex
 native directive

---
 .../compiler/modules/recycle-list/index.js    |  2 ++
 .../compiler/modules/recycle-list/v-for.js    | 35 +++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/v-for.js

diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index bb9d438d462..4dd153c5e92 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -3,6 +3,7 @@
 import { transformText } from './text'
 import { transformVBind } from './v-bind'
 import { transformVIf } from './v-if'
+import { transformVFor } from './v-for'
 
 let currentRecycleList = null
 
@@ -16,6 +17,7 @@ function transformNode (el: ASTElement) {
   if (currentRecycleList) {
     // TODO
     transformVIf(el)
+    transformVFor(el)
     transformVBind(el)
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
new file mode 100644
index 00000000000..ab096cfded1
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -0,0 +1,35 @@
+/* @flow */
+
+import { addAttr } from 'compiler/helpers'
+
+function isVForAttr (name: string): boolean {
+  return /^v\-for/.test(name)
+}
+
+export function transformVFor (el: ASTElement) {
+  for (const attr in el.attrsMap) {
+    if (!isVForAttr(attr)) {
+      continue
+    }
+    const desc: Object = {
+      '@expression': el.for,
+      '@alias': el.alias
+    }
+    if (el.iterator1) {
+      desc['@index'] = el.iterator1
+    }
+    if (el.iterator2) {
+      desc['@key'] = el.iterator1
+      desc['@index'] = el.iterator2
+    }
+    addAttr(el, '[[repeat]]', desc)
+    el.attrsMap['[[repeat]]'] = desc
+    el.attrsList.push({ name: '[[repeat]]', value: desc })
+    delete el.attrsMap[attr]
+    delete el.for
+    delete el.alias
+    delete el.key
+    delete el.iterator1
+    delete el.iterator2
+  }
+}

From 2d09ee3b8ce37e201d3973587d1cb442d5e08f31 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Sat, 16 Sep 2017 22:43:36 +0800
Subject: [PATCH 313/911] feat($compiler): compile weex native directives in
 preTransformNode

---
 src/compiler/parser/index.js                  |  2 +-
 .../compiler/modules/recycle-list/index.js    |  9 ++--
 .../compiler/modules/recycle-list/v-bind.js   | 31 +++++++------
 .../compiler/modules/recycle-list/v-for.js    | 44 +++++++++----------
 .../compiler/modules/recycle-list/v-if.js     | 30 +++----------
 5 files changed, 49 insertions(+), 67 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 61fdecd0c7b..70154a169f7 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -26,7 +26,7 @@ export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
 
 const argRE = /:(.*)$/
-const bindRE = /^:|^v-bind:/
+export const bindRE = /^:|^v-bind:/
 const modifierRE = /\.[^.]+/g
 
 const literalValueRE = /^(\{.*\}|\[.*\])$/
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 4dd153c5e92..f6e67b639ed 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -11,14 +11,17 @@ function preTransformNode (el: ASTElement) {
   if (el.tag === 'recycle-list') {
     currentRecycleList = el
   }
+  if (currentRecycleList) {
+    // TODO
+    transformVBind(el)
+    transformVIf(el)
+    transformVFor(el)
+  }
 }
 
 function transformNode (el: ASTElement) {
   if (currentRecycleList) {
     // TODO
-    transformVIf(el)
-    transformVFor(el)
-    transformVBind(el)
   }
 }
 
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
index f7836c8c214..425e7f67bf8 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -1,26 +1,25 @@
 /* @flow */
 
 import { camelize } from 'shared/util'
-import { getAndRemoveAttr, addAttr } from 'compiler/helpers'
-
-function isBindingAttr (name: string): boolean {
-  return /^(v\-bind)?\:/.test(name)
-}
+import { bindRE } from 'compiler/parser/index'
+import { getAndRemoveAttr } from 'compiler/helpers'
 
 function parseAttrName (name: string): string {
-  return camelize(name.replace(/^(v\-bind)?\:/, ''))
+  return camelize(name.replace(bindRE, ''))
 }
 
 export function transformVBind (el: ASTElement) {
-  if (!el.attrsList || !el.attrsList.length) {
-    return
-  }
-  el.attrsList.forEach(attr => {
-    if (isBindingAttr(attr.name)) {
-      const name: string = parseAttrName(attr.name)
-      const binding = getAndRemoveAttr(el, attr.name)
-      addAttr(el, name, { '@binding': binding })
+  for (const attr in el.attrsMap) {
+    if (bindRE.test(attr)) {
+      const name: string = parseAttrName(attr)
+      const value = {
+        '@binding': getAndRemoveAttr(el, attr)
+      }
+      delete el.attrsMap[attr]
+      el.attrsMap[name] = value
+      el.attrsList.push({ name, value })
+      // addAttr(el, name, value)
+      // el.hasBindings = false
     }
-  })
-  el.hasBindings = false
+  }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
index ab096cfded1..2396e301085 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-for.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -1,35 +1,31 @@
 /* @flow */
 
-import { addAttr } from 'compiler/helpers'
-
-function isVForAttr (name: string): boolean {
-  return /^v\-for/.test(name)
-}
+import { forAliasRE, forIteratorRE } from 'compiler/parser/index'
+import { getAndRemoveAttr } from 'compiler/helpers'
 
 export function transformVFor (el: ASTElement) {
-  for (const attr in el.attrsMap) {
-    if (!isVForAttr(attr)) {
-      continue
-    }
+  const exp = getAndRemoveAttr(el, 'v-for')
+  if (!exp) {
+    return
+  }
+  const inMatch = exp.match(forAliasRE)
+  if (inMatch) {
+    const alias = inMatch[1].trim()
     const desc: Object = {
-      '@expression': el.for,
-      '@alias': el.alias
-    }
-    if (el.iterator1) {
-      desc['@index'] = el.iterator1
+      '@expression': inMatch[2].trim(),
+      '@alias': alias
     }
-    if (el.iterator2) {
-      desc['@key'] = el.iterator1
-      desc['@index'] = el.iterator2
+    const iteratorMatch = alias.match(forIteratorRE)
+    if (iteratorMatch) {
+      desc['@alias'] = iteratorMatch[1].trim()
+      desc['@index'] = iteratorMatch[2].trim()
+      if (iteratorMatch[3]) {
+        desc['@key'] = iteratorMatch[2].trim()
+        desc['@index'] = iteratorMatch[3].trim()
+      }
     }
-    addAttr(el, '[[repeat]]', desc)
+    delete el.attrsMap['v-for']
     el.attrsMap['[[repeat]]'] = desc
     el.attrsList.push({ name: '[[repeat]]', value: desc })
-    delete el.attrsMap[attr]
-    delete el.for
-    delete el.alias
-    delete el.key
-    delete el.iterator1
-    delete el.iterator2
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
index c21f70ad2f7..673fb09e7f2 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-if.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -1,29 +1,13 @@
 /* @flow */
 
-import { getAndRemoveAttr, addAttr } from 'compiler/helpers'
-
-function isConditionAttr (name: string): boolean {
-  return /^v\-if|v\-else|v\-else\-if/.test(name)
-}
+import { getAndRemoveAttr } from 'compiler/helpers'
 
 export function transformVIf (el: ASTElement) {
-  for (const attr in el.attrsMap) {
-    if (!isConditionAttr(attr)) {
-      continue
-    }
-    const binding = getAndRemoveAttr(el, attr)
-    switch (attr) {
-      case 'v-if': {
-        addAttr(el, '[[match]]', binding)
-        el.attrsMap['[[match]]'] = binding
-        el.attrsList.push({ name: '[[match]]', value: binding })
-        delete el.attrsMap[attr]
-        delete el.if
-        delete el.ifConditions
-        break
-      }
-
-      // TODO: support v-else and v-else-if
-    }
+  const exp = getAndRemoveAttr(el, 'v-if')
+  if (exp) {
+    el.attrsMap['[[match]]'] = exp
+    el.attrsList.push({ name: '[[match]]', value: exp })
+    delete el.attrsMap['v-if']
   }
+  // TODO: support v-else and v-else-if
 }

From 2a1ce0d92cb12c18f945f69ee5cb6914b389e35e Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Sun, 17 Sep 2017 00:04:05 +0800
Subject: [PATCH 314/911] feat($compiler): supports compiling v-else-if and
 v-else to the weex native directive

---
 .../compiler/modules/recycle-list/index.js    |  6 +--
 .../compiler/modules/recycle-list/v-for.js    |  4 +-
 .../compiler/modules/recycle-list/v-if.js     | 43 +++++++++++++++++--
 3 files changed, 45 insertions(+), 8 deletions(-)

diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index f6e67b639ed..323df23ae87 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -7,15 +7,15 @@ import { transformVFor } from './v-for'
 
 let currentRecycleList = null
 
-function preTransformNode (el: ASTElement) {
+function preTransformNode (el: ASTElement, options: CompilerOptions) {
   if (el.tag === 'recycle-list') {
     currentRecycleList = el
   }
   if (currentRecycleList) {
     // TODO
     transformVBind(el)
-    transformVIf(el)
-    transformVFor(el)
+    transformVIf(el, options) // and v-else-if and v-else
+    transformVFor(el, options)
   }
 }
 
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
index 2396e301085..29e6c6f5835 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-for.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -3,7 +3,7 @@
 import { forAliasRE, forIteratorRE } from 'compiler/parser/index'
 import { getAndRemoveAttr } from 'compiler/helpers'
 
-export function transformVFor (el: ASTElement) {
+export function transformVFor (el: ASTElement, options: CompilerOptions) {
   const exp = getAndRemoveAttr(el, 'v-for')
   if (!exp) {
     return
@@ -27,5 +27,7 @@ export function transformVFor (el: ASTElement) {
     delete el.attrsMap['v-for']
     el.attrsMap['[[repeat]]'] = desc
     el.attrsList.push({ name: '[[repeat]]', value: desc })
+  } else if (process.env.NODE_ENV !== 'production' && options.warn) {
+    options.warn(`Invalid v-for expression: ${exp}`)
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
index 673fb09e7f2..f01010a251d 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-if.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -2,12 +2,47 @@
 
 import { getAndRemoveAttr } from 'compiler/helpers'
 
-export function transformVIf (el: ASTElement) {
-  const exp = getAndRemoveAttr(el, 'v-if')
-  if (exp) {
+function hasConditionDirective (el: ASTElement): boolean {
+  for (const attr in el.attrsMap) {
+    if (/^v\-if|v\-else|v\-else\-if$/.test(attr)) {
+      return true
+    }
+  }
+  return false
+}
+
+function getPrevMatch (el: ASTElement): any {
+  if (el.parent && el.parent.children) {
+    const prev: Object = el.parent.children[el.parent.children.length - 1]
+    return prev.attrsMap['[[match]]']
+  }
+}
+
+export function transformVIf (el: ASTElement, options: CompilerOptions) {
+  if (hasConditionDirective(el)) {
+    let exp
+    const ifExp = getAndRemoveAttr(el, 'v-if')
+    const elseifExp = getAndRemoveAttr(el, 'v-else-if')
+    if (ifExp) {
+      exp = ifExp
+    } else {
+      const prevMatch = getPrevMatch(el)
+      if (prevMatch) {
+        exp = elseifExp
+          ? `!(${prevMatch}) && (${elseifExp})` // v-else-if
+          : `!(${prevMatch})` // v-else
+      } else if (process.env.NODE_ENV !== 'production' && options.warn) {
+        options.warn(
+          `v-${elseifExp ? ('else-if="' + elseifExp + '"') : 'else'} ` +
+          `used on element <${el.tag}> without corresponding v-if.`
+        )
+        return
+      }
+    }
     el.attrsMap['[[match]]'] = exp
     el.attrsList.push({ name: '[[match]]', value: exp })
     delete el.attrsMap['v-if']
+    delete el.attrsMap['v-else-if']
+    delete el.attrsMap['v-else']
   }
-  // TODO: support v-else and v-else-if
 }

From acdc3c46e98919faa50b3e4cc308ab73b1a60bfe Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Tue, 19 Sep 2017 18:29:26 +0800
Subject: [PATCH 315/911] feat($event): support binding parameters on event
 handler within weex recycle-list

---
 src/core/vdom/helpers/update-listeners.js    | 16 +++++++++++-----
 src/platforms/weex/entry-framework.js        |  4 ++--
 src/platforms/weex/runtime/modules/events.js |  6 ++++--
 3 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index d587eecf38a..6b92f5da6de 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -1,13 +1,15 @@
 /* @flow */
 
 import { warn } from 'core/util/index'
-import { cached, isUndef } from 'shared/util'
+import { cached, isUndef, isPlainObject } from 'shared/util'
 
 const normalizeEvent = cached((name: string): {
   name: string,
   once: boolean,
   capture: boolean,
-  passive: boolean
+  passive: boolean,
+  handler?: Function,
+  params?: Array<any>
 } => {
   const passive = name.charAt(0) === '&'
   name = passive ? name.slice(1) : name
@@ -47,11 +49,15 @@ export function updateListeners (
   remove: Function,
   vm: Component
 ) {
-  let name, cur, old, event
+  let name, def, cur, old, event
   for (name in on) {
-    cur = on[name]
+    def = cur = on[name]
     old = oldOn[name]
     event = normalizeEvent(name)
+    if (isPlainObject(def)) {
+      cur = def.handler
+      event.params = def.params
+    }
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         `Invalid handler for event "${event.name}": got ` + String(cur),
@@ -61,7 +67,7 @@ export function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur)
       }
-      add(event.name, cur, event.once, event.capture, event.passive)
+      add(event.name, cur, event.once, event.capture, event.passive, event.params)
     } else if (cur !== old) {
       old.fns = cur
       on[name] = old
diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index f5352867d05..887138ce704 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -122,10 +122,10 @@ const jsHandlers = {
   }
 }
 
-function fireEvent (instance, nodeId, type, e, domChanges) {
+function fireEvent (instance, nodeId, type, e, domChanges, params) {
   const el = instance.document.getRef(nodeId)
   if (el) {
-    return instance.document.fireEvent(el, type, e, domChanges)
+    return instance.document.fireEvent(el, type, e, domChanges, params)
   }
   return new Error(`invalid element reference "${nodeId}"`)
 }
diff --git a/src/platforms/weex/runtime/modules/events.js b/src/platforms/weex/runtime/modules/events.js
index 11b7edcfec8..a3f9e25a0ac 100755
--- a/src/platforms/weex/runtime/modules/events.js
+++ b/src/platforms/weex/runtime/modules/events.js
@@ -8,7 +8,9 @@ function add (
   event: string,
   handler: Function,
   once: boolean,
-  capture: boolean
+  capture: boolean,
+  passive?: boolean,
+  params?: Array<any>
 ) {
   if (capture) {
     console.log('Weex do not support event in bubble phase.')
@@ -26,7 +28,7 @@ function add (
       }
     }
   }
-  target.addEvent(event, handler)
+  target.addEvent(event, handler, params)
 }
 
 function remove (

From b3cb9d9dd2984e4bb4f1575f89fe4a9e9a0d3ebb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 9 Oct 2017 17:47:11 -0400
Subject: [PATCH 316/911] refactor: mark weex-specific block

---
 src/core/vdom/helpers/update-listeners.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index 6b92f5da6de..4ec3bf2026f 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -54,7 +54,8 @@ export function updateListeners (
     def = cur = on[name]
     old = oldOn[name]
     event = normalizeEvent(name)
-    if (isPlainObject(def)) {
+    // $flow-disable-line
+    if (__WEEX__ && isPlainObject(def)) {
       cur = def.handler
       event.params = def.params
     }

From ac999573ea6e4be3a421cdff79d66a5274ec58eb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 9 Oct 2017 21:31:03 -0400
Subject: [PATCH 317/911] feat(wip): recycle list template inline expand

---
 src/core/vdom/create-component.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 905c37ed216..991b19e326c 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -144,6 +144,22 @@ export function createComponent (
 
   data = data || {}
 
+  // recycle-list optimized render function for extracting cell-slot
+  // template. This is essentailly inline expanding instead of creating
+  // an actual instance.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  // $flow-disable-line
+  if (__WEEX__ && data.attrs['@isInRecycleList']) {
+    const altRender = Ctor.options['@render']
+    if (altRender) {
+      return altRender.call(
+        context,
+        context.$createElement,
+        data.attrs
+      )
+    }
+  }
+
   // resolve constructor options in case global mixins are applied after
   // component constructor creation
   resolveConstructorOptions(Ctor)

From 2cb8ea3fee741807a15bf8f3049ab062a7d9508c Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 30 Oct 2017 19:28:40 -0500
Subject: [PATCH 318/911] feat(weex): support compiling `v-on` in the weex
 native directive (#6892)

* refactor(compiler): move postTransforms to after children are processed

* feat(weex): recycle-list support WIP

* refactor: fix types

* feat(weex): split text into separate module

* feat($compiler): supports compiling v-bind to the weex native directive in recycle-list

* feat(compile): supports compiling v-if to the weex native directive

* feat($compiler): supports compiling v-for to the weex native directive

* feat($compiler): compile weex native directives in preTransformNode

* feat($compiler): supports compiling v-else-if and v-else to the weex native directive

* feat($event): support binding parameters on event handler within weex recycle-list

* refactor: mark weex-specific block

* feat(wip): recycle list template inline expand

* build: add weex factory dev script

* feat($compiler): support to compile "v-on" into weex native directive

* feat($compiler): adjust handler params to fit the weex native renderer

+ Filter the non-expression params and the `$event`.
+ Use `$event` as the last argument of handler.
---
 flow/compiler.js                              |  1 +
 src/compiler/codegen/events.js                | 26 ++++++++++++++++---
 src/core/vdom/create-component.js             |  4 +--
 .../compiler/modules/recycle-list/index.js    |  2 ++
 .../compiler/modules/recycle-list/v-on.js     | 25 ++++++++++++++++++
 5 files changed, 53 insertions(+), 5 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/v-on.js

diff --git a/flow/compiler.js b/flow/compiler.js
index 21f70d046d3..1716c08bc8a 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -56,6 +56,7 @@ declare type ASTIfConditions = Array<ASTIfCondition>;
 
 declare type ASTElementHandler = {
   value: string;
+  params?: Array<any>;
   modifiers: ?ASTModifiers;
 };
 
diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 7bfe5ec1c5f..1753a56cde2 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -46,6 +46,17 @@ export function genHandlers (
   return res.slice(0, -1) + '}'
 }
 
+// Generate handler code with binding params on Weex
+function genWeexHandler (params: Array<any>, handlerCode: string) {
+  const wrapperArgs = params.filter(exp => simplePathRE.test(exp) && exp !== '$event')
+  const handlerParams = wrapperArgs.map(exp => ({ '@binding': exp }))
+  wrapperArgs.push('$event')
+  return '{' +
+    `handler:function(${wrapperArgs.join(',')}){${handlerCode}},\n` +
+    `params:${JSON.stringify(handlerParams)}` +
+    '}'
+}
+
 function genHandler (
   name: string,
   handler: ASTElementHandler | Array<ASTElementHandler>
@@ -62,9 +73,14 @@ function genHandler (
   const isFunctionExpression = fnExpRE.test(handler.value)
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : `function($event){${handler.value}}` // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    // $flow-disable-line
+    if (__WEEX__ && handler.params) {
+      return genWeexHandler(handler.params, handler.value)
+    }
+    return `function($event){${handler.value}}` // inline statement
   } else {
     let code = ''
     let genModifierCode = ''
@@ -100,6 +116,10 @@ function genHandler (
       : isFunctionExpression
         ? `(${handler.value})($event)`
         : handler.value
+    // $flow-disable-line
+    if (__WEEX__ && handler.params) {
+      return genWeexHandler(handler.params, code + handlerCode)
+    }
     return `function($event){${code}${handlerCode}}`
   }
 }
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 991b19e326c..3356b2aa248 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -145,11 +145,11 @@ export function createComponent (
   data = data || {}
 
   // recycle-list optimized render function for extracting cell-slot
-  // template. This is essentailly inline expanding instead of creating
+  // template. This is essentially inline expanding instead of creating
   // an actual instance.
   // https://github.com/Hanks10100/weex-native-directive/tree/master/component
   // $flow-disable-line
-  if (__WEEX__ && data.attrs['@isInRecycleList']) {
+  if (__WEEX__ && data.attrs && data.attrs['@isInRecycleList']) {
     const altRender = Ctor.options['@render']
     if (altRender) {
       return altRender.call(
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 323df23ae87..a492e73aae0 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -4,6 +4,7 @@ import { transformText } from './text'
 import { transformVBind } from './v-bind'
 import { transformVIf } from './v-if'
 import { transformVFor } from './v-for'
+import { postTransformVOn } from './v-on'
 
 let currentRecycleList = null
 
@@ -31,6 +32,7 @@ function postTransformNode (el: ASTElement) {
     if (el.tag === 'text') {
       transformText(el)
     }
+    postTransformVOn(el)
   }
   if (el === currentRecycleList) {
     currentRecycleList = null
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-on.js b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
new file mode 100644
index 00000000000..347d8d3c7c8
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
@@ -0,0 +1,25 @@
+/* @flow */
+
+const inlineStatementRE = /^\s*([A-Za-z_$0-9\.]+)*\s*\(\s*(([A-Za-z_$0-9\'\"]+)?(\s*,\s*([A-Za-z_$0-9\'\"]+))*)\s*\)$/
+
+function parseHandlerParams (handler: ASTElementHandler) {
+  const res = inlineStatementRE.exec(handler.value)
+  if (res && res[2]) {
+    handler.params = res[2].split(/\s*,\s*/)
+  }
+}
+
+export function postTransformVOn (el: ASTElement) {
+  const events: ASTElementHandlers | void = el.events
+  if (!events) {
+    return
+  }
+  for (const name in events) {
+    const handler: ASTElementHandler | Array<ASTElementHandler> = events[name]
+    if (Array.isArray(handler)) {
+      handler.map(fn => parseHandlerParams(fn))
+    } else {
+      parseHandlerParams(handler)
+    }
+  }
+}

From 305ef285745f4abacc3eb4c0c32227c2902eab53 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 30 Oct 2017 20:30:36 -0400
Subject: [PATCH 319/911] chore: update package-lock.json

---
 package-lock.json | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/package-lock.json b/package-lock.json
index e2d96e62294..1135b8d6693 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2469,6 +2469,29 @@
         }
       }
     },
+    "css": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/css/-/css-2.2.1.tgz",
+      "integrity": "sha1-c6TIHehdtmTU7mdPfUcIXjstVdw=",
+      "dev": true,
+      "requires": {
+        "inherits": "2.0.3",
+        "source-map": "0.1.43",
+        "source-map-resolve": "0.3.1",
+        "urix": "0.1.0"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.1.43",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
+          "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
+          "dev": true,
+          "requires": {
+            "amdefine": "1.0.1"
+          }
+        }
+      }
+    },
     "ctype": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/ctype/-/ctype-0.5.3.tgz",

From 0c11aa8addf5ad852e37da358ce2887af72e4193 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 13 Nov 2017 10:47:39 -0600
Subject: [PATCH 320/911] feat(weex): generate "@render" function for weex
 recycle-list (#6987)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* feat($compiler): support to generate @render function for weex recycle-list

Compile the template twice with different options for weex platform if
the “recyclable” flag is passed. Generate both normal render function
and “@render” function for recycle-list.

Adjust function names and arguments in recycle-list compiler.

* test(weex): add test cases for <recycle-list>
---
 flow/compiler.js                              |  4 ++
 src/compiler/codegen/events.js                | 18 +++++---
 src/platforms/weex/compiler/index.js          | 24 +++++++++-
 .../compiler/modules/recycle-list/index.js    | 36 ++++++++-------
 .../compiler/modules/recycle-list/text.js     |  2 +-
 .../compiler/modules/recycle-list/v-bind.js   |  2 +-
 .../compiler/modules/recycle-list/v-for.js    |  2 +-
 .../compiler/modules/recycle-list/v-if.js     |  2 +-
 .../compiler/modules/recycle-list/v-on.js     |  4 +-
 test/weex/cases/cases.spec.js                 | 12 +++++
 test/weex/cases/recycle-list/attrs.vdom.js    | 33 +++++++++++++
 test/weex/cases/recycle-list/attrs.vue        | 23 ++++++++++
 .../weex/cases/recycle-list/text-node.vdom.js | 37 +++++++++++++++
 test/weex/cases/recycle-list/text-node.vue    | 23 ++++++++++
 .../weex/cases/recycle-list/v-else-if.vdom.js | 34 ++++++++++++++
 test/weex/cases/recycle-list/v-else-if.vue    | 23 ++++++++++
 test/weex/cases/recycle-list/v-else.vdom.js   | 28 +++++++++++
 test/weex/cases/recycle-list/v-else.vue       | 22 +++++++++
 .../cases/recycle-list/v-for-iterator.vdom.js | 46 +++++++++++++++++++
 .../cases/recycle-list/v-for-iterator.vue     | 24 ++++++++++
 test/weex/cases/recycle-list/v-for.vdom.js    | 32 +++++++++++++
 test/weex/cases/recycle-list/v-for.vue        | 23 ++++++++++
 test/weex/cases/recycle-list/v-if.vdom.js     | 28 +++++++++++
 test/weex/cases/recycle-list/v-if.vue         | 22 +++++++++
 .../cases/recycle-list/v-on-inline.vdom.js    | 36 +++++++++++++++
 test/weex/cases/recycle-list/v-on-inline.vue  | 28 +++++++++++
 test/weex/cases/recycle-list/v-on.vdom.js     | 24 ++++++++++
 test/weex/cases/recycle-list/v-on.vue         | 26 +++++++++++
 28 files changed, 588 insertions(+), 30 deletions(-)
 create mode 100644 test/weex/cases/recycle-list/attrs.vdom.js
 create mode 100644 test/weex/cases/recycle-list/attrs.vue
 create mode 100644 test/weex/cases/recycle-list/text-node.vdom.js
 create mode 100644 test/weex/cases/recycle-list/text-node.vue
 create mode 100644 test/weex/cases/recycle-list/v-else-if.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-else-if.vue
 create mode 100644 test/weex/cases/recycle-list/v-else.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-else.vue
 create mode 100644 test/weex/cases/recycle-list/v-for-iterator.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-for-iterator.vue
 create mode 100644 test/weex/cases/recycle-list/v-for.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-for.vue
 create mode 100644 test/weex/cases/recycle-list/v-if.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-if.vue
 create mode 100644 test/weex/cases/recycle-list/v-on-inline.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-on-inline.vue
 create mode 100644 test/weex/cases/recycle-list/v-on.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-on.vue

diff --git a/flow/compiler.js b/flow/compiler.js
index 1716c08bc8a..9ed21a848c0 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -17,6 +17,9 @@ declare type CompilerOptions = {
   shouldDecodeNewlines?:  boolean;
   shouldDecodeNewlinesForHref?: boolean;
 
+  // support <recycle-list> in weex
+  recyclable?: boolean;
+
   // for ssr optimization compiler
   scopeId?: string;
 
@@ -30,6 +33,7 @@ declare type CompilerOptions = {
 declare type CompiledResult = {
   ast: ?ASTElement;
   render: string;
+  '@render'?: string;
   staticRenderFns: Array<string>;
   stringRenderFns?: Array<string>;
   errors?: Array<string>;
diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 1753a56cde2..4f7aa411b23 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -48,12 +48,18 @@ export function genHandlers (
 
 // Generate handler code with binding params on Weex
 function genWeexHandler (params: Array<any>, handlerCode: string) {
-  const wrapperArgs = params.filter(exp => simplePathRE.test(exp) && exp !== '$event')
-  const handlerParams = wrapperArgs.map(exp => ({ '@binding': exp }))
-  wrapperArgs.push('$event')
-  return '{' +
-    `handler:function(${wrapperArgs.join(',')}){${handlerCode}},\n` +
-    `params:${JSON.stringify(handlerParams)}` +
+  let innerHandlerCode = handlerCode
+  const exps = params.filter(exp => simplePathRE.test(exp) && exp !== '$event')
+  const bindings = exps.map(exp => ({ '@binding': exp }))
+  const args = exps.map((exp, i) => {
+    const key = `$_${i + 1}`
+    innerHandlerCode = innerHandlerCode.replace(exp, key)
+    return key
+  })
+  args.push('$event')
+  return '{\n' +
+    `handler:function(${args.join(',')}){${innerHandlerCode}},\n` +
+    `params:${JSON.stringify(bindings)}\n` +
     '}'
 }
 
diff --git a/src/platforms/weex/compiler/index.js b/src/platforms/weex/compiler/index.js
index cbbc6381c71..89ed6ebd918 100644
--- a/src/platforms/weex/compiler/index.js
+++ b/src/platforms/weex/compiler/index.js
@@ -23,8 +23,28 @@ export const baseOptions: CompilerOptions = {
   isReservedTag,
   getTagNamespace,
   preserveWhitespace: false,
+  recyclable: false,
   staticKeys: genStaticKeys(modules)
 }
 
-const { compile, compileToFunctions } = createCompiler(baseOptions)
-export { compile, compileToFunctions }
+const compiler = createCompiler(baseOptions)
+
+export function compile (
+  template: string,
+  options?: CompilerOptions
+): CompiledResult {
+  let generateAltRender = false
+  if (options && options.recyclable === true) {
+    generateAltRender = true
+    options.recyclable = false
+  }
+  const result = compiler.compile(template, options)
+
+  // generate @render function for <recycle-list>
+  if (options && generateAltRender) {
+    options.recyclable = true
+    const { render } = compiler.compile(template, options)
+    result['@render'] = render
+  }
+  return result
+}
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index a492e73aae0..646f151e786 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,38 +1,42 @@
 /* @flow */
 
-import { transformText } from './text'
-import { transformVBind } from './v-bind'
-import { transformVIf } from './v-if'
-import { transformVFor } from './v-for'
+import { postTransformText } from './text'
+import { preTransformVBind } from './v-bind'
+import { preTransformVIf } from './v-if'
+import { preTransformVFor } from './v-for'
 import { postTransformVOn } from './v-on'
 
 let currentRecycleList = null
 
+function shouldCompile (el: ASTElement, options: CompilerOptions) {
+  return options.recyclable ||
+    (currentRecycleList && el !== currentRecycleList)
+}
+
 function preTransformNode (el: ASTElement, options: CompilerOptions) {
   if (el.tag === 'recycle-list') {
     currentRecycleList = el
   }
-  if (currentRecycleList) {
-    // TODO
-    transformVBind(el)
-    transformVIf(el, options) // and v-else-if and v-else
-    transformVFor(el, options)
+  if (shouldCompile(el, options)) {
+    preTransformVBind(el, options)
+    preTransformVIf(el, options) // also v-else-if and v-else
+    preTransformVFor(el, options)
   }
 }
 
-function transformNode (el: ASTElement) {
-  if (currentRecycleList) {
-    // TODO
+function transformNode (el: ASTElement, options: CompilerOptions) {
+  if (shouldCompile(el, options)) {
+    // do nothing yet
   }
 }
 
-function postTransformNode (el: ASTElement) {
-  if (currentRecycleList) {
+function postTransformNode (el: ASTElement, options: CompilerOptions) {
+  if (shouldCompile(el, options)) {
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
-      transformText(el)
+      postTransformText(el, options)
     }
-    postTransformVOn(el)
+    postTransformVOn(el, options)
   }
   if (el === currentRecycleList) {
     currentRecycleList = null
diff --git a/src/platforms/weex/compiler/modules/recycle-list/text.js b/src/platforms/weex/compiler/modules/recycle-list/text.js
index fb72c81b555..327810548d5 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/text.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/text.js
@@ -13,7 +13,7 @@ function genText (node: ASTNode) {
   return JSON.stringify(value)
 }
 
-export function transformText (el: ASTElement) {
+export function postTransformText (el: ASTElement, options: CompilerOptions) {
   // weex <text> can only contain text, so the parser
   // always generates a single child.
   if (el.children.length) {
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
index 425e7f67bf8..a940896df74 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -8,7 +8,7 @@ function parseAttrName (name: string): string {
   return camelize(name.replace(bindRE, ''))
 }
 
-export function transformVBind (el: ASTElement) {
+export function preTransformVBind (el: ASTElement, options: CompilerOptions) {
   for (const attr in el.attrsMap) {
     if (bindRE.test(attr)) {
       const name: string = parseAttrName(attr)
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
index 29e6c6f5835..baa6de97ce5 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-for.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -3,7 +3,7 @@
 import { forAliasRE, forIteratorRE } from 'compiler/parser/index'
 import { getAndRemoveAttr } from 'compiler/helpers'
 
-export function transformVFor (el: ASTElement, options: CompilerOptions) {
+export function preTransformVFor (el: ASTElement, options: CompilerOptions) {
   const exp = getAndRemoveAttr(el, 'v-for')
   if (!exp) {
     return
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
index f01010a251d..d3c03c27e85 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-if.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -18,7 +18,7 @@ function getPrevMatch (el: ASTElement): any {
   }
 }
 
-export function transformVIf (el: ASTElement, options: CompilerOptions) {
+export function preTransformVIf (el: ASTElement, options: CompilerOptions) {
   if (hasConditionDirective(el)) {
     let exp
     const ifExp = getAndRemoveAttr(el, 'v-if')
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-on.js b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
index 347d8d3c7c8..c2f4c19a708 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-on.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-const inlineStatementRE = /^\s*([A-Za-z_$0-9\.]+)*\s*\(\s*(([A-Za-z_$0-9\'\"]+)?(\s*,\s*([A-Za-z_$0-9\'\"]+))*)\s*\)$/
+const inlineStatementRE = /^\s*([A-Za-z_$0-9\['\."\]]+)*\s*\(\s*(([A-Za-z_$0-9\['\."\]]+)?(\s*,\s*([A-Za-z_$0-9\['\."\]]+))*)\s*\)$/
 
 function parseHandlerParams (handler: ASTElementHandler) {
   const res = inlineStatementRE.exec(handler.value)
@@ -9,7 +9,7 @@ function parseHandlerParams (handler: ASTElementHandler) {
   }
 }
 
-export function postTransformVOn (el: ASTElement) {
+export function postTransformVOn (el: ASTElement, options: CompilerOptions) {
   const events: ASTElementHandlers | void = el.events
   if (!events) {
     return
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index 291600dfb24..ed3abf60f46 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -68,5 +68,17 @@ describe('Usage', () => {
   describe('event', () => {
     it('click', createEventTestCase('event/click'))
   })
+
+  describe('recycle-list', () => {
+    it('text node', createRenderTestCase('recycle-list/text-node'))
+    it('attributes', createRenderTestCase('recycle-list/attrs'))
+    it('v-if', createRenderTestCase('recycle-list/v-if'))
+    it('v-else', createRenderTestCase('recycle-list/v-else'))
+    it('v-else-if', createRenderTestCase('recycle-list/v-else-if'))
+    it('v-for', createRenderTestCase('recycle-list/v-for'))
+    it('v-for-iterator', createRenderTestCase('recycle-list/v-for-iterator'))
+    it('v-on', createRenderTestCase('recycle-list/v-on'))
+    it('v-on-inline', createRenderTestCase('recycle-list/v-on-inline'))
+  })
 })
 
diff --git a/test/weex/cases/recycle-list/attrs.vdom.js b/test/weex/cases/recycle-list/attrs.vdom.js
new file mode 100644
index 00000000000..175d355fb6b
--- /dev/null
+++ b/test/weex/cases/recycle-list/attrs.vdom.js
@@ -0,0 +1,33 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A', count: 1, source: 'http://whatever.com/x.png' },
+      { type: 'A', count: 2, source: 'http://whatever.com/y.png' },
+      { type: 'A', count: 3, source: 'http://whatever.com/z.png' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'image',
+      attr: {
+        resize: 'cover',
+        src: {
+          '@binding': 'item.source'
+        }
+      }
+    }, {
+      type: 'text',
+      attr: {
+        lines: '3',
+        count: {
+          '@binding': 'item.count'
+        }
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/attrs.vue b/test/weex/cases/recycle-list/attrs.vue
new file mode 100644
index 00000000000..b9de8f9e711
--- /dev/null
+++ b/test/weex/cases/recycle-list/attrs.vue
@@ -0,0 +1,23 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <image resize="cover" :src="item.source">
+      <text lines="3" v-bind:count="item.count"></text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A', count: 1, source: 'http://whatever.com/x.png' },
+          { type: 'A', count: 2, source: 'http://whatever.com/y.png' },
+          { type: 'A', count: 3, source: 'http://whatever.com/z.png' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/text-node.vdom.js b/test/weex/cases/recycle-list/text-node.vdom.js
new file mode 100644
index 00000000000..5808ea0bfd4
--- /dev/null
+++ b/test/weex/cases/recycle-list/text-node.vdom.js
@@ -0,0 +1,37 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A', dynamic: 'decimal', two: '2', four: '4' },
+      { type: 'A', dynamic: 'binary', two: '10', four: '100' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'text',
+      attr: {
+        value: 'static'
+      }
+    }, {
+      type: 'text',
+      attr: {
+        value: { '@binding': 'item.dynamic' }
+      }
+    }, {
+      type: 'text',
+      attr: {
+        value: [
+          'one ',
+          { '@binding': 'item.two' },
+          ' three ',
+          { '@binding': 'item.four' },
+          ' five'
+        ]
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/text-node.vue b/test/weex/cases/recycle-list/text-node.vue
new file mode 100644
index 00000000000..801f3168d5f
--- /dev/null
+++ b/test/weex/cases/recycle-list/text-node.vue
@@ -0,0 +1,23 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <text>static</text>
+      <text>{{item.dynamic}}</text>
+      <text>one {{item.two}} three {{ item.four }} five</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A', dynamic: 'decimal', two: '2', four: '4' },
+          { type: 'A', dynamic: 'binary', two: '10', four: '100' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/v-else-if.vdom.js b/test/weex/cases/recycle-list/v-else-if.vdom.js
new file mode 100644
index 00000000000..3bdcfb2be7b
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-else-if.vdom.js
@@ -0,0 +1,34 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'image',
+      attr: {
+        '[[match]]': 'item.sourceA',
+        src: { '@binding': 'item.sourceA' }
+      }
+    }, {
+      type: 'image',
+      attr: {
+        '[[match]]': '!(item.sourceA) && (item.sourceB)',
+        src: { '@binding': 'item.sourceB' }
+      }
+    }, {
+      type: 'image',
+      attr: {
+        '[[match]]': '!(!(item.sourceA) && (item.sourceB))',
+        src: { '@binding': 'item.placeholder' }
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-else-if.vue b/test/weex/cases/recycle-list/v-else-if.vue
new file mode 100644
index 00000000000..bde4ccc65f8
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-else-if.vue
@@ -0,0 +1,23 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <image v-if="item.sourceA" :src="item.sourceA"></image>
+      <image v-else-if="item.sourceB" :src="item.sourceB"></image>
+      <image v-else :src="item.placeholder"></image>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/v-else.vdom.js b/test/weex/cases/recycle-list/v-else.vdom.js
new file mode 100644
index 00000000000..0a42c8c2bb1
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-else.vdom.js
@@ -0,0 +1,28 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'image',
+      attr: {
+        '[[match]]': 'item.source',
+        src: { '@binding': 'item.source' }
+      }
+    }, {
+      type: 'image',
+      attr: {
+        '[[match]]': '!(item.source)',
+        src: { '@binding': 'item.placeholder' }
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-else.vue b/test/weex/cases/recycle-list/v-else.vue
new file mode 100644
index 00000000000..086d39dbac0
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-else.vue
@@ -0,0 +1,22 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <image v-if="item.source" :src="item.source"></image>
+      <image v-else v-bind:src="item.placeholder"></image>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/v-for-iterator.vdom.js b/test/weex/cases/recycle-list/v-for-iterator.vdom.js
new file mode 100644
index 00000000000..872ad661b38
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-for-iterator.vdom.js
@@ -0,0 +1,46 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'div',
+      attr: {
+        '[[repeat]]': {
+          '@expression': 'item.list',
+          '@index': 'index',
+          '@alias': 'object'
+        }
+      },
+      children: [{
+        type: 'text',
+        attr: {
+          value: {
+            '@binding': 'object.name'
+          }
+        }
+      }, {
+        type: 'text',
+        attr: {
+          '[[repeat]]': {
+            '@expression': 'object',
+            '@alias': 'v',
+            '@key': 'k',
+            '@index': 'i'
+          },
+          value: {
+            '@binding': 'v'
+          }
+        }
+      }]
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-for-iterator.vue b/test/weex/cases/recycle-list/v-for-iterator.vue
new file mode 100644
index 00000000000..a6b7dc312e2
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-for-iterator.vue
@@ -0,0 +1,24 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <div v-for="(object, index) in item.list" :key="index">
+        <text>{{object.name}}</text>
+        <text v-for="(v, k, i) in object" :key="k">{{v}}</text>
+      </div>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/v-for.vdom.js b/test/weex/cases/recycle-list/v-for.vdom.js
new file mode 100644
index 00000000000..19ed8935774
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-for.vdom.js
@@ -0,0 +1,32 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'div',
+      attr: {
+        '[[repeat]]': {
+          '@expression': 'item.list',
+          '@alias': 'panel'
+        }
+      },
+      children: [{
+        type: 'text',
+        attr: {
+          value: {
+            '@binding': 'panel.label'
+          }
+        }
+      }]
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-for.vue b/test/weex/cases/recycle-list/v-for.vue
new file mode 100644
index 00000000000..713d5c02866
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-for.vue
@@ -0,0 +1,23 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <div v-for="panel in item.list" :key="panel.id">
+        <text>{{panel.label}}</text>
+      </div>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/v-if.vdom.js b/test/weex/cases/recycle-list/v-if.vdom.js
new file mode 100644
index 00000000000..2a3d58784ad
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-if.vdom.js
@@ -0,0 +1,28 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'image',
+      attr: {
+        '[[match]]': 'item.source',
+        src: { '@binding': 'item.source' }
+      }
+    }, {
+      type: 'text',
+      attr: {
+        '[[match]]': '!item.source',
+        value: 'Title'
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-if.vue b/test/weex/cases/recycle-list/v-if.vue
new file mode 100644
index 00000000000..bec7cdac8e7
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-if.vue
@@ -0,0 +1,22 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <image v-if="item.source" :src="item.source"></image>
+      <text v-if="!item.source">Title</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/v-on-inline.vdom.js b/test/weex/cases/recycle-list/v-on-inline.vdom.js
new file mode 100644
index 00000000000..284871a4b2f
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-on-inline.vdom.js
@@ -0,0 +1,36 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'text',
+      event: ['click', {
+        type: 'longpress',
+        params: [{ '@binding': 'item.key' }]
+      }]
+    }, {
+      type: 'text',
+      event: [{
+        type: 'appear',
+        params: [
+          { '@binding': 'item.index' },
+          { '@binding': 'item.type' }
+        ]
+      }],
+      attr: { value: 'Button' }
+    }, {
+      type: 'text',
+      event: [{ type: 'disappear' }],
+      attr: { value: 'Tips' }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-on-inline.vue b/test/weex/cases/recycle-list/v-on-inline.vue
new file mode 100644
index 00000000000..bf7ae7018d5
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-on-inline.vue
@@ -0,0 +1,28 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <text v-on:click="toggle()" @longpress="toggle(item.key)"></text>
+      <text @appear="onappear(item.index, 'static', item.type, $event)">Button</text>
+      <text @disappear="onappear(25, 'static')">Tips</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    },
+    methods: {
+      hide () {},
+      toggle () {},
+      onappear () {}
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/v-on.vdom.js b/test/weex/cases/recycle-list/v-on.vdom.js
new file mode 100644
index 00000000000..63a7c3c6aed
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-on.vdom.js
@@ -0,0 +1,24 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'text',
+      event: ['click', 'longpress'],
+      attr: { value: 'A' }
+    }, {
+      type: 'text',
+      event: ['touchend'],
+      attr: { value: 'B' }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-on.vue b/test/weex/cases/recycle-list/v-on.vue
new file mode 100644
index 00000000000..de5fc51bfb8
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-on.vue
@@ -0,0 +1,26 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <text v-on:click="handler" @longpress="move">A</text>
+      <text @touchend="move">B</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    },
+    methods: {
+      handler () {},
+      move () {}
+    }
+  }
+</script>
+

From 0bf0cbef76a9d107ea0d4fbd8f54f640a2c5b221 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Tue, 14 Nov 2017 07:19:31 -0600
Subject: [PATCH 321/911] revert(weex): remove the "receiveTasks" api and
 support component hook (#7053)

---
 package.json                          |  2 +-
 src/platforms/weex/entry-framework.js | 47 ------------------------
 src/platforms/weex/util/index.js      | 14 +++++++-
 test/weex/runtime/framework.spec.js   | 51 ---------------------------
 4 files changed, 14 insertions(+), 100 deletions(-)

diff --git a/package.json b/package.json
index d9c84be31d4..48401a53c99 100644
--- a/package.json
+++ b/package.json
@@ -125,7 +125,7 @@
     "typescript": "^2.6.1",
     "uglify-js": "^3.0.15",
     "webpack": "^3.10.0",
-    "weex-js-runtime": "^0.23.0",
+    "weex-js-runtime": "^0.23.1",
     "weex-styler": "^0.3.0"
   },
   "config": {
diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 887138ce704..2c281970699 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -113,53 +113,6 @@ export function getRoot (instanceId) {
   return instance.app.$el.toJSON()
 }
 
-const jsHandlers = {
-  fireEvent: (id, ...args) => {
-    return fireEvent(instances[id], ...args)
-  },
-  callback: (id, ...args) => {
-    return callback(instances[id], ...args)
-  }
-}
-
-function fireEvent (instance, nodeId, type, e, domChanges, params) {
-  const el = instance.document.getRef(nodeId)
-  if (el) {
-    return instance.document.fireEvent(el, type, e, domChanges, params)
-  }
-  return new Error(`invalid element reference "${nodeId}"`)
-}
-
-function callback (instance, callbackId, data, ifKeepAlive) {
-  const result = instance.document.taskCenter.callback(callbackId, data, ifKeepAlive)
-  instance.document.taskCenter.send('dom', { action: 'updateFinish' }, [])
-  return result
-}
-
-/**
- * Accept calls from native (event or callback).
- *
- * @param  {string} id
- * @param  {array} tasks list with `method` and `args`
- */
-export function receiveTasks (id, tasks) {
-  const instance = instances[id]
-  if (instance && Array.isArray(tasks)) {
-    const results = []
-    tasks.forEach((task) => {
-      const handler = jsHandlers[task.method]
-      const args = [...task.args]
-      /* istanbul ignore else */
-      if (typeof handler === 'function') {
-        args.unshift(id)
-        results.push(handler(...args))
-      }
-    })
-    return results
-  }
-  return new Error(`invalid instance id "${id}" or tasks`)
-}
-
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index 05da30e985e..b6966709931 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -1,6 +1,7 @@
 /* globals document */
 
 import { makeMap } from 'shared/util'
+import { warn } from 'core/util/index'
 
 export const isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
@@ -20,7 +21,7 @@ export const canBeLeftOpenTag = makeMap(
 )
 
 export const isRuntimeComponent = makeMap(
-  'richtext,trisition,trisition-group',
+  'richtext,transition,transition-group',
   true
 )
 
@@ -40,3 +41,14 @@ export function query (el, document) {
   document.documentElement.appendChild(placeholder)
   return placeholder
 }
+
+export function registerHook (cid, type, hook, fn) {
+  if (!document || !document.taskCenter) {
+    warn(`Can't find available "document" or "taskCenter".`)
+    return
+  }
+  if (typeof document.taskCenter.registerHook === 'function') {
+    return document.taskCenter.registerHook(cid, type, hook, fn)
+  }
+  warn(`Not support to register component hook "${type}@${hook}#${cid}".`)
+}
diff --git a/test/weex/runtime/framework.spec.js b/test/weex/runtime/framework.spec.js
index 3079c9e0657..449d8772608 100644
--- a/test/weex/runtime/framework.spec.js
+++ b/test/weex/runtime/framework.spec.js
@@ -152,57 +152,6 @@ describe('framework APIs', () => {
     expect(root).toMatch(/not found/)
   })
 
-  // TODO: deprecated, move to weex-js-runtime
-  it('receiveTasks: fireEvent', (done) => {
-    const id = String(Date.now() * Math.random())
-    const instance = createInstance(id, `
-      new Vue({
-        data: {
-          x: 'Hello'
-        },
-        methods: {
-          update: function (e) {
-            this.x = 'World'
-          }
-        },
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: this.x }, on: { click: this.update }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-    expect(getRoot(instance)).toEqual({
-      type: 'div',
-      children: [{
-        type: 'text',
-        attr: { value: 'Hello' },
-        event: ['click']
-      }]
-    })
-    const textRef = framework.getRoot(id).children[0].ref
-    framework.receiveTasks(id, [
-      { method: 'fireEvent', args: [textRef, 'click'] }
-    ])
-    setTimeout(() => {
-      expect(getRoot(instance)).toEqual({
-        type: 'div',
-        children: [{
-          type: 'text',
-          attr: { value: 'World' },
-          event: ['click']
-        }]
-      })
-      framework.destroyInstance(id)
-      const result = framework.receiveTasks(id, [
-        { method: 'fireEvent', args: [textRef, 'click'] }
-      ])
-      expect(result instanceof Error).toBe(true)
-      done()
-    })
-  })
-
   it('vm.$getConfig', () => {
     const id = String(Date.now() * Math.random())
     global.WXEnvironment = {

From 46c8016562c3a9308fcf45d31a5a674312e2c110 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Thu, 23 Nov 2017 09:42:07 +0800
Subject: [PATCH 322/911] test(weex): add more test cases for recycle-list
 (#7104)

---
 test/weex/cases/cases.spec.js                 | 75 ++++++++++++++++---
 .../weex/cases/recycle-list/classname.vdom.js | 26 +++++++
 test/weex/cases/recycle-list/classname.vue    | 37 +++++++++
 .../cases/recycle-list/components/banner.vue  | 19 +++++
 .../cases/recycle-list/components/counter.vue | 36 +++++++++
 .../cases/recycle-list/components/poster.vue  | 33 ++++++++
 .../recycle-list/components/stateful.vdom.js  | 45 +++++++++++
 .../recycle-list/components/stateful.vue      | 22 ++++++
 .../components/stateless-with-props.vdom.js   | 50 +++++++++++++
 .../components/stateless-with-props.vue       | 22 ++++++
 .../recycle-list/components/stateless.vdom.js | 45 +++++++++++
 .../recycle-list/components/stateless.vue     | 22 ++++++
 .../cases/recycle-list/inline-style.vdom.js   | 28 +++++++
 test/weex/cases/recycle-list/inline-style.vue | 21 ++++++
 test/weex/helpers/index.js                    | 45 +++++++++--
 15 files changed, 509 insertions(+), 17 deletions(-)
 create mode 100644 test/weex/cases/recycle-list/classname.vdom.js
 create mode 100644 test/weex/cases/recycle-list/classname.vue
 create mode 100644 test/weex/cases/recycle-list/components/banner.vue
 create mode 100644 test/weex/cases/recycle-list/components/counter.vue
 create mode 100644 test/weex/cases/recycle-list/components/poster.vue
 create mode 100644 test/weex/cases/recycle-list/components/stateful.vdom.js
 create mode 100644 test/weex/cases/recycle-list/components/stateful.vue
 create mode 100644 test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
 create mode 100644 test/weex/cases/recycle-list/components/stateless-with-props.vue
 create mode 100644 test/weex/cases/recycle-list/components/stateless.vdom.js
 create mode 100644 test/weex/cases/recycle-list/components/stateless.vue
 create mode 100644 test/weex/cases/recycle-list/inline-style.vdom.js
 create mode 100644 test/weex/cases/recycle-list/inline-style.vue

diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index ed3abf60f46..a22dd63c634 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -1,21 +1,14 @@
-import fs from 'fs'
-import path from 'path'
 import {
+  readFile,
+  readObject,
   compileVue,
+  compileWithDeps,
   createInstance,
   getRoot,
   getEvents,
   fireEvent
 } from '../helpers'
 
-function readFile (filename) {
-  return fs.readFileSync(path.resolve(__dirname, filename), 'utf8')
-}
-
-function readObject (filename) {
-  return (new Function(`return ${readFile(filename)}`))()
-}
-
 // Create one-off render test case
 function createRenderTestCase (name) {
   const source = readFile(`${name}.vue`)
@@ -72,6 +65,8 @@ describe('Usage', () => {
   describe('recycle-list', () => {
     it('text node', createRenderTestCase('recycle-list/text-node'))
     it('attributes', createRenderTestCase('recycle-list/attrs'))
+    // it('class name', createRenderTestCase('recycle-list/classname'))
+    // it('inline style', createRenderTestCase('recycle-list/inline-style'))
     it('v-if', createRenderTestCase('recycle-list/v-if'))
     it('v-else', createRenderTestCase('recycle-list/v-else'))
     it('v-else-if', createRenderTestCase('recycle-list/v-else-if'))
@@ -79,6 +74,66 @@ describe('Usage', () => {
     it('v-for-iterator', createRenderTestCase('recycle-list/v-for-iterator'))
     it('v-on', createRenderTestCase('recycle-list/v-on'))
     it('v-on-inline', createRenderTestCase('recycle-list/v-on-inline'))
+
+    it('stateless component', done => {
+      compileWithDeps('recycle-list/components/stateless.vue', [{
+        name: 'banner',
+        path: 'recycle-list/components/banner.vue'
+      }]).then(code => {
+        const id = String(Date.now() * Math.random())
+        const instance = createInstance(id, code)
+        setTimeout(() => {
+          const target = readObject('recycle-list/components/stateless.vdom.js')
+          expect(getRoot(instance)).toEqual(target)
+          done()
+        }, 50)
+      }).catch(err => {
+        expect(err).toBe(null)
+        done()
+      })
+    })
+
+    // it('stateless component with props', done => {
+    //   compileWithDeps('recycle-list/components/stateless-with-props.vue', [{
+    //     name: 'poster',
+    //     path: 'recycle-list/components/poster.vue'
+    //   }]).then(code => {
+    //     const id = String(Date.now() * Math.random())
+    //     const instance = createInstance(id, code)
+    //     setTimeout(() => {
+    //       const target = readObject('recycle-list/components/stateless-with-props.vdom.js')
+    //       expect(getRoot(instance)).toEqual(target)
+    //       done()
+    //     }, 50)
+    //   }).catch(err => {
+    //     expect(err).toBe(null)
+    //     done()
+    //   })
+    // })
+
+    // it('stateful component', done => {
+    //   compileWithDeps('recycle-list/components/stateful.vue', [{
+    //     name: 'counter',
+    //     path: 'recycle-list/components/counter.vue'
+    //   }]).then(code => {
+    //     const id = String(Date.now() * Math.random())
+    //     const instance = createInstance(id, code)
+    //     setTimeout(() => {
+    //       const target = readObject('recycle-list/components/stateful.vdom.js')
+    //       expect(getRoot(instance)).toEqual(target)
+    //       const event = getEvents(instance)[0]
+    //       fireEvent(instance, event.ref, event.type, {})
+    //       setTimeout(() => {
+    //         // TODO: check render results
+    //         // expect(getRoot(instance)).toEqual(target)
+    //         done()
+    //       })
+    //     }, 50)
+    //   }).catch(err => {
+    //     expect(err).toBe(null)
+    //     done()
+    //   })
+    // })
   })
 })
 
diff --git a/test/weex/cases/recycle-list/classname.vdom.js b/test/weex/cases/recycle-list/classname.vdom.js
new file mode 100644
index 00000000000..c09989b9224
--- /dev/null
+++ b/test/weex/cases/recycle-list/classname.vdom.js
@@ -0,0 +1,26 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A', color: 'red' },
+      { type: 'A', color: 'blue' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    style: {
+      backgroundColor: '#FF6600'
+    },
+    children: [{
+      type: 'text',
+      attr: {
+        // not supported yet
+        // classList: ['text', { '@binding': 'item.color' }],
+        value: 'content'
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/classname.vue b/test/weex/cases/recycle-list/classname.vue
new file mode 100644
index 00000000000..afa8c9f8900
--- /dev/null
+++ b/test/weex/cases/recycle-list/classname.vue
@@ -0,0 +1,37 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A" class="cell">
+      <text :class="['text', item.color]">content</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<style scoped>
+  .cell {
+    background-color: #FF6600;
+  }
+  .text {
+    font-size: 100px;
+    text-align: center;
+  }
+  .red {
+    color: #FF0000;
+  }
+  .blue {
+    color: #0000FF;
+  }
+</style>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A', color: 'red' },
+          { type: 'A', color: 'blue' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/cases/recycle-list/components/banner.vue b/test/weex/cases/recycle-list/components/banner.vue
new file mode 100644
index 00000000000..a6c2f75c818
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/banner.vue
@@ -0,0 +1,19 @@
+<template recyclable="true">
+  <div class="banner">
+    <text class="title">BANNER</text>
+  </div>
+</template>
+
+<style scoped>
+  .banner {
+    height: 120px;
+    justify-content: center;
+    align-items: center;
+    background-color: rgb(162, 217, 192);
+  }
+  .title {
+    font-weight: bold;
+    color: #41B883;
+    font-size: 60px;
+  }
+</style>
diff --git a/test/weex/cases/recycle-list/components/counter.vue b/test/weex/cases/recycle-list/components/counter.vue
new file mode 100644
index 00000000000..c0298dee6eb
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/counter.vue
@@ -0,0 +1,36 @@
+<template recyclable="true">
+  <div>
+    <text class="output">{{count}}</text>
+    <text class="button" @click="inc">+</text>
+  </div>
+</template>
+
+<script>
+  module.exports = {
+    props: ['start'],
+    data () {
+      return {
+        count: parseInt(this.start, 10) || 42
+      }
+    },
+    methods: {
+      inc () {
+        this.count++
+      }
+    }
+  }
+</script>
+
+<style scoped>
+  .output {
+    font-size: 150px;
+    text-align: center;
+  }
+  .button {
+    font-size: 100px;
+    text-align: center;
+    border-width: 2px;
+    border-color: #DDD;
+    background-color: #F5F5F5;
+  }
+</style>
diff --git a/test/weex/cases/recycle-list/components/poster.vue b/test/weex/cases/recycle-list/components/poster.vue
new file mode 100644
index 00000000000..9bb6bb27a5c
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/poster.vue
@@ -0,0 +1,33 @@
+<template>
+  <div>
+    <image class="image" :src="imageUrl"></image>
+    <text class="title">{{title}}</text>
+  </div>
+</template>
+
+<script>
+  module.exports = {
+    props: {
+      imageUrl: {
+        type: String,
+        default: 'https://gw.alicdn.com/tfs/TB1KF_ybRTH8KJjy0FiXXcRsXXa-890-1186.png'
+      },
+      title: {
+        type: String,
+        default: 'I WANT YOU!'
+      }
+    }
+  }
+</script>
+
+<style scoped>
+  .image {
+    width: 750px;
+    height: 1000px;
+  }
+  .title {
+    font-size: 80px;
+    text-align: center;
+    color: #E95659;
+  }
+</style>
diff --git a/test/weex/cases/recycle-list/components/stateful.vdom.js b/test/weex/cases/recycle-list/components/stateful.vdom.js
new file mode 100644
index 00000000000..05af92f02da
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateful.vdom.js
@@ -0,0 +1,45 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A', number: 24 },
+      { type: 'A', number: 42 }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {
+          start: { '@binding': 'item.number' }
+        }
+      },
+      children: [{
+        type: 'text',
+        style: { fontSize: '150px', textAlign: 'center' },
+        attr: {
+          value: { '@binding': 'count' } // need confirm
+        }
+      }, {
+        type: 'text',
+        event: ['click'],
+        style: {
+          fontSize: '100px',
+          textAlign: 'center',
+          borderWidth: '2px',
+          borderColor: '#DDDDDD',
+          backgroundColor: '#F5F5F5'
+        },
+        attr: { value: '+' }
+      }]
+    }, {
+      type: 'text',
+      attr: { value: 'other' }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/components/stateful.vue b/test/weex/cases/recycle-list/components/stateful.vue
new file mode 100644
index 00000000000..b6882ad355b
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateful.vue
@@ -0,0 +1,22 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <counter :start="item.number"></counter>
+      <text>other</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  // require('./counter.vue')
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A', number: 24 },
+          { type: 'A', number: 42 }
+        ]
+      }
+    }
+  }
+</script>
diff --git a/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
new file mode 100644
index 00000000000..451f3ee2488
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
@@ -0,0 +1,50 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A', poster: 'xx', title: 'x' },
+      { type: 'A', poster: 'yy', title: 'y' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {
+          imageUrl: { '@binding': 'item.poster' },
+          title: { '@binding': 'item.title' }
+        }
+      },
+      children: [{
+        type: 'image',
+        style: {
+          width: '750px',
+          height: '1000px'
+        },
+        attr: {
+          src: { '@binding': 'imageUrl' }
+        }
+      }, {
+        type: 'text',
+        style: {
+          fontSize: '80px',
+          textAlign: 'center',
+          color: '#E95659'
+        },
+        attr: {
+          value: { '@binding': 'title' }
+        }
+      }]
+    }, {
+      type: 'text',
+      attr: {
+        value: 'content'
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/components/stateless-with-props.vue b/test/weex/cases/recycle-list/components/stateless-with-props.vue
new file mode 100644
index 00000000000..134ad5e1c11
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateless-with-props.vue
@@ -0,0 +1,22 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <poster :image-url="item.poster" :title="item.title"></poster>
+      <text>content</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  // require('./poster.vue')
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A', poster: 'xx', title: 'x' },
+          { type: 'A', poster: 'yy', title: 'y' }
+        ]
+      }
+    }
+  }
+</script>
diff --git a/test/weex/cases/recycle-list/components/stateless.vdom.js b/test/weex/cases/recycle-list/components/stateless.vdom.js
new file mode 100644
index 00000000000..06afdbf572a
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateless.vdom.js
@@ -0,0 +1,45 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'div',
+      // not supported yet
+      // attr: {
+      //   '@isComponentRoot': true,
+      //   '@componentProps': {}
+      // },
+      // style: {
+      //   height: '120px',
+      //   justifyContent: 'center',
+      //   alignItems: 'center',
+      //   backgroundColor: 'rgb(162, 217, 192)'
+      // },
+      children: [{
+        type: 'text',
+        // style: {
+        //   fontWeight: 'bold',
+        //   color: '#41B883',
+        //   fontSize: '60px'
+        // },
+        attr: {
+          value: 'BANNER'
+        }
+      }]
+    }, {
+      type: 'text',
+      attr: {
+        value: 'content'
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/components/stateless.vue b/test/weex/cases/recycle-list/components/stateless.vue
new file mode 100644
index 00000000000..ee3f45bf6b0
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateless.vue
@@ -0,0 +1,22 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <banner></banner>
+      <text>content</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  // require('./banner.vue')
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
diff --git a/test/weex/cases/recycle-list/inline-style.vdom.js b/test/weex/cases/recycle-list/inline-style.vdom.js
new file mode 100644
index 00000000000..57732c04b47
--- /dev/null
+++ b/test/weex/cases/recycle-list/inline-style.vdom.js
@@ -0,0 +1,28 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A', color: '#606060' },
+      { type: 'A', color: '#E5E5E5' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    style: {
+      backgroundColor: '#FF6600'
+    },
+    children: [{
+      type: 'text',
+      style: {
+        fontSize: '100px',
+        color: { '@binding': 'item.color' }
+      },
+      attr: {
+        value: 'content'
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/inline-style.vue b/test/weex/cases/recycle-list/inline-style.vue
new file mode 100644
index 00000000000..5f59c211ac5
--- /dev/null
+++ b/test/weex/cases/recycle-list/inline-style.vue
@@ -0,0 +1,21 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A" style="background-color:#FF6600">
+      <text :style="{ fontSize: '100px', color: item.color }">content</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A', color: '#606060' },
+          { type: 'A', color: '#E5E5E5' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index 653ded34c16..9f85091501e 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -1,3 +1,5 @@
+import fs from 'fs'
+import path from 'path'
 import * as Vue from '../../../packages/weex-vue-framework'
 import { compile } from '../../../packages/weex-template-compiler'
 import WeexRuntime from 'weex-js-runtime'
@@ -5,7 +7,15 @@ import styler from 'weex-styler'
 
 const styleRE = /<\s*style\s*\w*>([^(<\/)]*)<\/\s*style\s*>/g
 const scriptRE = /<\s*script.*>([^]*)<\/\s*script\s*>/
-const templateRE = /<\s*template\s*>([^]*)<\/\s*template\s*>/
+const templateRE = /<\s*template\s*([^>]*)>([^]*)<\/\s*template\s*>/
+
+export function readFile (filename) {
+  return fs.readFileSync(path.resolve(__dirname, '../cases/', filename), 'utf8')
+}
+
+export function readObject (filename) {
+  return (new Function(`return ${readFile(filename)}`))()
+}
 
 console.debug = () => {}
 
@@ -39,21 +49,28 @@ export function compileVue (source, componentName) {
     }
     const scriptMatch = scriptRE.exec(source)
     const script = scriptMatch ? scriptMatch[1] : ''
-    const { render, staticRenderFns } = compile(templateRE.exec(source)[1])
+    const templateMatch = templateRE.exec(source)
+    const compileOptions = {}
+    if (/\s*recyclable\=?/i.test(templateMatch[1])) {
+      compileOptions.recyclable = true
+    }
+    const res = compile(templateMatch[2], compileOptions)
 
+    const name = 'test_case_' + (Math.random() * 99999999).toFixed(0)
     const generateCode = styles => (`
-      var test_case = Object.assign({
+      var ${name} = Object.assign({
         style: ${JSON.stringify(styles)},
-        render: function () { ${render} },
-        staticRenderFns: ${parseStatic(staticRenderFns)},
+        render: function () { ${res.render} },
+        ${res['@render'] ? ('"@render": function () {' + res['@render'] + '},') : ''}
+        staticRenderFns: ${parseStatic(res.staticRenderFns)},
       }, (function(){
         var module = { exports: {} };
         ${script};
         return module.exports;
       })());
     ` + (componentName
-        ? `Vue.component('${componentName}', test_case);\n`
-        : `test_case.el = 'body';new Vue(test_case);`)
+        ? `Vue.component('${componentName}', ${name});\n`
+        : `${name}.el = 'body';new Vue(${name});`)
     )
 
     let cssText = ''
@@ -71,6 +88,20 @@ export function compileVue (source, componentName) {
   })
 }
 
+export function compileWithDeps (entryPath, deps) {
+  return new Promise((resolve, reject) => {
+    if (Array.isArray(deps)) {
+      Promise.all(deps.map(dep => {
+        return compileVue(readFile(dep.path), dep.name).catch(reject)
+      })).then(depCodes => {
+        compileVue(readFile(entryPath)).then(entryCode => {
+          resolve(depCodes.join('\n') + entryCode)
+        }).catch(reject)
+      }).catch(reject)
+    }
+  })
+}
+
 function isObject (object) {
   return object !== null && typeof object === 'object'
 }

From 813409593ea719aa42b24e576ba6435f7b1a8f90 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 21:02:00 -0500
Subject: [PATCH 323/911] refactor(weex): declare __WEEX__ in flow typings

---
 flow/compiler.js                          | 3 +++
 src/compiler/codegen/events.js            | 2 --
 src/core/vdom/create-component.js         | 1 -
 src/core/vdom/helpers/update-listeners.js | 1 -
 4 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index 9ed21a848c0..5c88bc9b89a 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -1,3 +1,6 @@
+// global flag to be compiled away
+declare var __WEEX__: boolean;
+
 declare type CompilerOptions = {
   warn?: Function; // allow customizing warning in different environments; e.g. node
   expectHTML?: boolean; // only false for non-web builds
diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 4f7aa411b23..5e08baad40d 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -82,7 +82,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    // $flow-disable-line
     if (__WEEX__ && handler.params) {
       return genWeexHandler(handler.params, handler.value)
     }
@@ -122,7 +121,6 @@ function genHandler (
       : isFunctionExpression
         ? `(${handler.value})($event)`
         : handler.value
-    // $flow-disable-line
     if (__WEEX__ && handler.params) {
       return genWeexHandler(handler.params, code + handlerCode)
     }
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 3356b2aa248..e93840cb6bc 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -148,7 +148,6 @@ export function createComponent (
   // template. This is essentially inline expanding instead of creating
   // an actual instance.
   // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  // $flow-disable-line
   if (__WEEX__ && data.attrs && data.attrs['@isInRecycleList']) {
     const altRender = Ctor.options['@render']
     if (altRender) {
diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index 4ec3bf2026f..ca1c7c4c4c7 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -54,7 +54,6 @@ export function updateListeners (
     def = cur = on[name]
     old = oldOn[name]
     event = normalizeEvent(name)
-    // $flow-disable-line
     if (__WEEX__ && isPlainObject(def)) {
       cur = def.handler
       event.params = def.params

From bb8e8f44a92bed7826cbe7a645eac61480576066 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 21:02:16 -0500
Subject: [PATCH 324/911] test(weex): avoid @binding key warnings

---
 src/core/vdom/create-element.js | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index adeac2d61ff..9b5b28d2509 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -69,11 +69,13 @@ export function _createElement (
   if (process.env.NODE_ENV !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    )
+    if (!__WEEX__ || !('@binding' in data.key)) {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      )
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&

From e5da1daeec2cd0d2f3006b73b0d2b767a5562112 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 21:14:48 -0500
Subject: [PATCH 325/911] test(weex): avoid v-else warning for recycle-list
 tests

---
 .../weex/compiler/modules/recycle-list/v-if.js         | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
index d3c03c27e85..ffcea24ccdf 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-if.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -21,8 +21,11 @@ function getPrevMatch (el: ASTElement): any {
 export function preTransformVIf (el: ASTElement, options: CompilerOptions) {
   if (hasConditionDirective(el)) {
     let exp
-    const ifExp = getAndRemoveAttr(el, 'v-if')
-    const elseifExp = getAndRemoveAttr(el, 'v-else-if')
+    const ifExp = getAndRemoveAttr(el, 'v-if', true /* remove from attrsMap */)
+    const elseifExp = getAndRemoveAttr(el, 'v-else-if', true)
+    // don't need the value, but remove it to avoid being generated as a
+    // custom directive
+    getAndRemoveAttr(el, 'v-else', true)
     if (ifExp) {
       exp = ifExp
     } else {
@@ -41,8 +44,5 @@ export function preTransformVIf (el: ASTElement, options: CompilerOptions) {
     }
     el.attrsMap['[[match]]'] = exp
     el.attrsList.push({ name: '[[match]]', value: exp })
-    delete el.attrsMap['v-if']
-    delete el.attrsMap['v-else-if']
-    delete el.attrsMap['v-else']
   }
 }

From 3b32652aa68a06d881e3149bb21ac8711887e7f6 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Thu, 23 Nov 2017 23:19:54 +0800
Subject: [PATCH 326/911] feat(weex): update weex utils (#7115)

Add flow type annotations. Add the "registerComponentHook" and the "updateComponentData" api.
---
 src/platforms/weex/util/index.js | 42 ++++++++++++++++++++++++++------
 1 file changed, 34 insertions(+), 8 deletions(-)

diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index b6966709931..38108343052 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -1,4 +1,5 @@
-/* globals document */
+/* @flow */
+declare var document: Object;
 
 import { makeMap } from 'shared/util'
 import { warn } from 'core/util/index'
@@ -30,11 +31,17 @@ export const isUnaryTag = makeMap(
   true
 )
 
-export function mustUseProp () { /* console.log('mustUseProp') */ }
-export function getTagNamespace () { /* console.log('getTagNamespace') */ }
-export function isUnknownElement () { /* console.log('isUnknownElement') */ }
+export function mustUseProp (tag: string, type: ?string, name: string): boolean {
+  return false
+}
+
+export function getTagNamespace (tag?: string): string | void { }
+
+export function isUnknownElement (tag?: string): boolean {
+  return false
+}
 
-export function query (el, document) {
+export function query (el: string | Element, document: Object) {
   // document is injected by weex factory wrapper
   const placeholder = document.createComment('root')
   placeholder.hasAttribute = placeholder.removeAttribute = function () {} // hack for patch
@@ -42,13 +49,32 @@ export function query (el, document) {
   return placeholder
 }
 
-export function registerHook (cid, type, hook, fn) {
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+export function registerComponentHook (
+  componentId: string,
+  type: string, // hook type, could be "lifecycle" or "instance"
+  hook: string, // hook name
+  fn: Function
+) {
   if (!document || !document.taskCenter) {
     warn(`Can't find available "document" or "taskCenter".`)
     return
   }
   if (typeof document.taskCenter.registerHook === 'function') {
-    return document.taskCenter.registerHook(cid, type, hook, fn)
+    return document.taskCenter.registerHook(componentId, type, hook, fn)
+  }
+  warn(`Failed to register component hook "${type}@${hook}#${componentId}".`)
+}
+
+// Updates the state of the component to weex native render engine.
+export function updateComponentData (componentId: string, newData: Object) {
+  if (!document || !document.taskCenter) {
+    warn(`Can't find available "document" or "taskCenter".`)
+    return
+  }
+  if (typeof document.taskCenter.updateData === 'function') {
+    return document.taskCenter.updateData(componentId, newData)
   }
-  warn(`Not support to register component hook "${type}@${hook}#${cid}".`)
+  warn(`Failed to update component data (${componentId}).`)
 }

From 0ee81b24b5146bca315503e2f5aa3b01832735f1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Nov 2017 17:48:46 -0500
Subject: [PATCH 327/911] fix(weex): update recycle-list v-for transform

---
 src/compiler/parser/index.js                      |  2 +-
 .../weex/compiler/modules/recycle-list/v-for.js   | 15 ++++++++-------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 70154a169f7..0261934f83c 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -23,7 +23,7 @@ export const onRE = /^@|^v-on:/
 export const dirRE = /^v-|^@|^:/
 export const forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
-const stripParensRE = /^\(|\)$/g
+export const stripParensRE = /^\(|\)$/g
 
 const argRE = /:(.*)$/
 export const bindRE = /^:|^v-bind:/
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
index baa6de97ce5..8f3a19d62fe 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-for.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { forAliasRE, forIteratorRE } from 'compiler/parser/index'
+import { forAliasRE, forIteratorRE, stripParensRE } from 'compiler/parser/index'
 import { getAndRemoveAttr } from 'compiler/helpers'
 
 export function preTransformVFor (el: ASTElement, options: CompilerOptions) {
@@ -10,18 +10,19 @@ export function preTransformVFor (el: ASTElement, options: CompilerOptions) {
   }
   const inMatch = exp.match(forAliasRE)
   if (inMatch) {
-    const alias = inMatch[1].trim()
+    const alias = inMatch[1].trim().replace(stripParensRE, '')
     const desc: Object = {
       '@expression': inMatch[2].trim(),
       '@alias': alias
     }
     const iteratorMatch = alias.match(forIteratorRE)
     if (iteratorMatch) {
-      desc['@alias'] = iteratorMatch[1].trim()
-      desc['@index'] = iteratorMatch[2].trim()
-      if (iteratorMatch[3]) {
-        desc['@key'] = iteratorMatch[2].trim()
-        desc['@index'] = iteratorMatch[3].trim()
+      desc['@alias'] = alias.replace(forIteratorRE, '')
+      if (iteratorMatch[2]) {
+        desc['@key'] = iteratorMatch[1].trim()
+        desc['@index'] = iteratorMatch[2].trim()
+      } else {
+        desc['@index'] = iteratorMatch[1].trim()
       }
     }
     delete el.attrsMap['v-for']

From c1743a9dd7eaffa67f9a9c21b6940f167ba7590d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 28 Nov 2017 14:50:41 -0500
Subject: [PATCH 328/911] test(weex): use done.fail for reporting errors

---
 test/weex/cases/cases.spec.js | 25 +++++--------------------
 1 file changed, 5 insertions(+), 20 deletions(-)

diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index a22dd63c634..09e037a84c8 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -21,10 +21,7 @@ function createRenderTestCase (name) {
         expect(getRoot(instance)).toEqual(target)
         done()
       }, 50)
-    }).catch(err => {
-      expect(err).toBe(null)
-      done()
-    })
+    }).catch(done.fail)
   }
 }
 
@@ -46,10 +43,7 @@ function createEventTestCase (name) {
           done()
         }, 50)
       }, 50)
-    }).catch(err => {
-      expect(err).toBe(null)
-      done()
-    })
+    }).catch(done.fail)
   }
 }
 
@@ -87,10 +81,7 @@ describe('Usage', () => {
           expect(getRoot(instance)).toEqual(target)
           done()
         }, 50)
-      }).catch(err => {
-        expect(err).toBe(null)
-        done()
-      })
+      }).catch(done.fail)
     })
 
     // it('stateless component with props', done => {
@@ -105,10 +96,7 @@ describe('Usage', () => {
     //       expect(getRoot(instance)).toEqual(target)
     //       done()
     //     }, 50)
-    //   }).catch(err => {
-    //     expect(err).toBe(null)
-    //     done()
-    //   })
+    //   }).catch(done.fail)
     // })
 
     // it('stateful component', done => {
@@ -129,10 +117,7 @@ describe('Usage', () => {
     //         done()
     //       })
     //     }, 50)
-    //   }).catch(err => {
-    //     expect(err).toBe(null)
-    //     done()
-    //   })
+    //   }).catch(done.fail)
     // })
   })
 })

From 801f793625273b39fd3f25abbaa04508d6651563 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 28 Nov 2017 17:36:06 -0500
Subject: [PATCH 329/911] feat(weex): WIP invoke recycle-list child component
 with backing instance

---
 flow/compiler.js                              |  1 +
 src/compiler/helpers.js                       |  5 ++++
 src/compiler/index.js                         |  4 +++-
 src/core/vdom/create-component.js             | 24 +++++++------------
 src/platforms/weex/compiler/index.js          |  2 ++
 .../modules/recycle-list/component.js         | 12 ++++++++++
 .../compiler/modules/recycle-list/index.js    |  2 ++
 .../compiler/modules/recycle-list/text.js     |  1 -
 .../recycle-list/render-component-template.js | 17 +++++++++++++
 .../runtime/recycle-list/virtual-component.js |  6 +++++
 src/platforms/weex/util/index.js              |  2 ++
 11 files changed, 59 insertions(+), 17 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/component.js
 create mode 100644 src/platforms/weex/runtime/recycle-list/render-component-template.js
 create mode 100644 src/platforms/weex/runtime/recycle-list/virtual-component.js

diff --git a/flow/compiler.js b/flow/compiler.js
index 5c88bc9b89a..43daa46c5bd 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -19,6 +19,7 @@ declare type CompilerOptions = {
   shouldDecodeTags?: boolean;
   shouldDecodeNewlines?:  boolean;
   shouldDecodeNewlinesForHref?: boolean;
+  optimize?: boolean;
 
   // support <recycle-list> in weex
   recyclable?: boolean;
diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index ebcd5708bb7..2c7cd12760c 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -18,10 +18,12 @@ export function pluckModuleFunction<F: Function> (
 
 export function addProp (el: ASTElement, name: string, value: string) {
   (el.props || (el.props = [])).push({ name, value })
+  el.plain = false
 }
 
 export function addAttr (el: ASTElement, name: string, value: any) {
   (el.attrs || (el.attrs = [])).push({ name, value })
+  el.plain = false
 }
 
 export function addDirective (
@@ -33,6 +35,7 @@ export function addDirective (
   modifiers: ?ASTModifiers
 ) {
   (el.directives || (el.directives = [])).push({ name, rawName, value, arg, modifiers })
+  el.plain = false
 }
 
 export function addHandler (
@@ -105,6 +108,8 @@ export function addHandler (
   } else {
     events[name] = newHandler
   }
+
+  el.plain = false
 }
 
 export function getBindingAttr (
diff --git a/src/compiler/index.js b/src/compiler/index.js
index 075917bdc37..56b54fd36c6 100644
--- a/src/compiler/index.js
+++ b/src/compiler/index.js
@@ -13,7 +13,9 @@ export const createCompiler = createCompilerCreator(function baseCompile (
   options: CompilerOptions
 ): CompiledResult {
   const ast = parse(template.trim(), options)
-  optimize(ast, options)
+  if (options.optimize !== false) {
+    optimize(ast, options)
+  }
   const code = generate(ast, options)
   return {
     ast,
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index e93840cb6bc..3f857ef2553 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -4,6 +4,7 @@ import VNode from './vnode'
 import { resolveConstructorOptions } from 'core/instance/init'
 import { queueActivatedComponent } from 'core/observer/scheduler'
 import { createFunctionalComponent } from './create-functional-component'
+import { renderRecyclableComponentTemplate } from 'weex/runtime/recycle-list/render-component-template'
 
 import {
   warn,
@@ -144,21 +145,6 @@ export function createComponent (
 
   data = data || {}
 
-  // recycle-list optimized render function for extracting cell-slot
-  // template. This is essentially inline expanding instead of creating
-  // an actual instance.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  if (__WEEX__ && data.attrs && data.attrs['@isInRecycleList']) {
-    const altRender = Ctor.options['@render']
-    if (altRender) {
-      return altRender.call(
-        context,
-        context.$createElement,
-        data.attrs
-      )
-    }
-  }
-
   // resolve constructor options in case global mixins are applied after
   // component constructor creation
   resolveConstructorOptions(Ctor)
@@ -206,6 +192,14 @@ export function createComponent (
     { Ctor, propsData, listeners, tag, children },
     asyncFactory
   )
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  if (__WEEX__ && data.attrs && ('@inRecycleList' in data.attrs)) {
+    return renderRecyclableComponentTemplate(vnode)
+  }
+
   return vnode
 }
 
diff --git a/src/platforms/weex/compiler/index.js b/src/platforms/weex/compiler/index.js
index 89ed6ebd918..cd4e07eaee6 100644
--- a/src/platforms/weex/compiler/index.js
+++ b/src/platforms/weex/compiler/index.js
@@ -43,6 +43,8 @@ export function compile (
   // generate @render function for <recycle-list>
   if (options && generateAltRender) {
     options.recyclable = true
+    // disable static optimizations
+    options.optimize = false
     const { render } = compiler.compile(template, options)
     result['@render'] = render
   }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component.js b/src/platforms/weex/compiler/modules/recycle-list/component.js
new file mode 100644
index 00000000000..a00ee83cae3
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/component.js
@@ -0,0 +1,12 @@
+/* @flow */
+
+import { addAttr } from 'compiler/helpers'
+import { RECYCLE_LIST_MARKER } from 'weex/util/index'
+
+// mark components as inside recycle-list so that we know we need to invoke
+// their special @render function instead of render in create-component.js
+export function postTransformComponent (el: ASTElement, options: CompilerOptions) {
+  if (!options.isReservedTag(el.tag) && el.tag !== 'cell-slot') {
+    addAttr(el, RECYCLE_LIST_MARKER, true)
+  }
+}
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 646f151e786..7d449afb6e3 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import { postTransformComponent } from './component'
 import { postTransformText } from './text'
 import { preTransformVBind } from './v-bind'
 import { preTransformVIf } from './v-if'
@@ -32,6 +33,7 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
 
 function postTransformNode (el: ASTElement, options: CompilerOptions) {
   if (shouldCompile(el, options)) {
+    postTransformComponent(el, options)
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
       postTransformText(el, options)
diff --git a/src/platforms/weex/compiler/modules/recycle-list/text.js b/src/platforms/weex/compiler/modules/recycle-list/text.js
index 327810548d5..d896d53c4c1 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/text.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/text.js
@@ -19,6 +19,5 @@ export function postTransformText (el: ASTElement, options: CompilerOptions) {
   if (el.children.length) {
     addAttr(el, 'value', genText(el.children[0]))
     el.children = []
-    el.plain = false
   }
 }
diff --git a/src/platforms/weex/runtime/recycle-list/render-component-template.js b/src/platforms/weex/runtime/recycle-list/render-component-template.js
new file mode 100644
index 00000000000..3353c6f5eab
--- /dev/null
+++ b/src/platforms/weex/runtime/recycle-list/render-component-template.js
@@ -0,0 +1,17 @@
+/* @flow */
+
+import { RECYCLE_LIST_MARKER } from 'weex/util/index'
+import { createComponentInstanceForVnode } from 'core/vdom/create-component'
+
+export function isRecyclableComponent (vnode: VNodeWithData): boolean {
+  return vnode.data.attrs && (RECYCLE_LIST_MARKER in vnode.data.attrs)
+}
+
+export function renderRecyclableComponentTemplate (vnode: VNodeWithData): VNode {
+  // TODO:
+  // 1. adding @isComponentRoot / @componentProps to the root node
+  // 2. proper error handling
+  delete vnode.data.attrs[RECYCLE_LIST_MARKER]
+  const instance = createComponentInstanceForVnode(vnode)
+  return instance.$options['@render'].call(instance)
+}
diff --git a/src/platforms/weex/runtime/recycle-list/virtual-component.js b/src/platforms/weex/runtime/recycle-list/virtual-component.js
new file mode 100644
index 00000000000..da378da87ac
--- /dev/null
+++ b/src/platforms/weex/runtime/recycle-list/virtual-component.js
@@ -0,0 +1,6 @@
+// import {
+//   // id, 'lifecycle', hookname, fn
+//   // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+//   registerComponentHook,
+//   updateComponentData
+// } from '../util/index'
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index 38108343052..cffc2ede799 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -4,6 +4,8 @@ declare var document: Object;
 import { makeMap } from 'shared/util'
 import { warn } from 'core/util/index'
 
+export const RECYCLE_LIST_MARKER = '@inRecycleList'
+
 export const isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
   'a,div,img,image,text,span,input,switch,textarea,spinner,select,' +

From 5c2ce0017ff8929e70ce9f701b91d950fb351adb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 29 Nov 2017 10:35:20 -0500
Subject: [PATCH 330/911] feat(weex): WIP fix flow + handle errors in
 recycle-list template render

---
 flow/compiler.js                              |  4 ---
 src/platforms/weex/compiler/index.js          | 15 ++++++++--
 .../modules/recycle-list/component.js         |  4 ++-
 .../compiler/modules/recycle-list/index.js    |  9 +++---
 .../recycle-list/render-component-template.js | 30 +++++++++++++++----
 5 files changed, 44 insertions(+), 18 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index 43daa46c5bd..39e559ac72b 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -21,9 +21,6 @@ declare type CompilerOptions = {
   shouldDecodeNewlinesForHref?: boolean;
   optimize?: boolean;
 
-  // support <recycle-list> in weex
-  recyclable?: boolean;
-
   // for ssr optimization compiler
   scopeId?: string;
 
@@ -37,7 +34,6 @@ declare type CompilerOptions = {
 declare type CompiledResult = {
   ast: ?ASTElement;
   render: string;
-  '@render'?: string;
   staticRenderFns: Array<string>;
   stringRenderFns?: Array<string>;
   errors?: Array<string>;
diff --git a/src/platforms/weex/compiler/index.js b/src/platforms/weex/compiler/index.js
index cd4e07eaee6..47d7835f6fe 100644
--- a/src/platforms/weex/compiler/index.js
+++ b/src/platforms/weex/compiler/index.js
@@ -14,7 +14,16 @@ import {
   getTagNamespace
 } from '../util/index'
 
-export const baseOptions: CompilerOptions = {
+export type WeexCompilerOptions = CompilerOptions & {
+  // whether to compile special template for <recycle-list>
+  recyclable?: boolean;
+};
+
+export type WeexCompiledResult = CompiledResult & {
+  '@render'?: string;
+};
+
+export const baseOptions: WeexCompilerOptions = {
   modules,
   directives,
   isUnaryTag,
@@ -31,8 +40,8 @@ const compiler = createCompiler(baseOptions)
 
 export function compile (
   template: string,
-  options?: CompilerOptions
-): CompiledResult {
+  options?: WeexCompilerOptions
+): WeexCompiledResult {
   let generateAltRender = false
   if (options && options.recyclable === true) {
     generateAltRender = true
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component.js b/src/platforms/weex/compiler/modules/recycle-list/component.js
index a00ee83cae3..cade4df4423 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component.js
@@ -2,10 +2,12 @@
 
 import { addAttr } from 'compiler/helpers'
 import { RECYCLE_LIST_MARKER } from 'weex/util/index'
+import type { WeexCompilerOptions } from 'weex/compiler/index'
 
 // mark components as inside recycle-list so that we know we need to invoke
 // their special @render function instead of render in create-component.js
-export function postTransformComponent (el: ASTElement, options: CompilerOptions) {
+export function postTransformComponent (el: ASTElement, options: WeexCompilerOptions) {
+  // $flow-disable-line (we know isReservedTag is there)
   if (!options.isReservedTag(el.tag) && el.tag !== 'cell-slot') {
     addAttr(el, RECYCLE_LIST_MARKER, true)
   }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 7d449afb6e3..d3cb85a9cba 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import type { WeexCompilerOptions } from 'weex/compiler/index'
 import { postTransformComponent } from './component'
 import { postTransformText } from './text'
 import { preTransformVBind } from './v-bind'
@@ -9,12 +10,12 @@ import { postTransformVOn } from './v-on'
 
 let currentRecycleList = null
 
-function shouldCompile (el: ASTElement, options: CompilerOptions) {
+function shouldCompile (el: ASTElement, options: WeexCompilerOptions) {
   return options.recyclable ||
     (currentRecycleList && el !== currentRecycleList)
 }
 
-function preTransformNode (el: ASTElement, options: CompilerOptions) {
+function preTransformNode (el: ASTElement, options: WeexCompilerOptions) {
   if (el.tag === 'recycle-list') {
     currentRecycleList = el
   }
@@ -25,13 +26,13 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
   }
 }
 
-function transformNode (el: ASTElement, options: CompilerOptions) {
+function transformNode (el: ASTElement, options: WeexCompilerOptions) {
   if (shouldCompile(el, options)) {
     // do nothing yet
   }
 }
 
-function postTransformNode (el: ASTElement, options: CompilerOptions) {
+function postTransformNode (el: ASTElement, options: WeexCompilerOptions) {
   if (shouldCompile(el, options)) {
     postTransformComponent(el, options)
     // <text>: transform children text into value attr
diff --git a/src/platforms/weex/runtime/recycle-list/render-component-template.js b/src/platforms/weex/runtime/recycle-list/render-component-template.js
index 3353c6f5eab..bd3f7f05731 100644
--- a/src/platforms/weex/runtime/recycle-list/render-component-template.js
+++ b/src/platforms/weex/runtime/recycle-list/render-component-template.js
@@ -1,17 +1,35 @@
 /* @flow */
 
+import { warn } from 'core/util/debug'
+import { handleError } from 'core/util/error'
 import { RECYCLE_LIST_MARKER } from 'weex/util/index'
 import { createComponentInstanceForVnode } from 'core/vdom/create-component'
 
 export function isRecyclableComponent (vnode: VNodeWithData): boolean {
-  return vnode.data.attrs && (RECYCLE_LIST_MARKER in vnode.data.attrs)
+  return vnode.data.attrs
+    ? (RECYCLE_LIST_MARKER in vnode.data.attrs)
+    : false
 }
 
-export function renderRecyclableComponentTemplate (vnode: VNodeWithData): VNode {
+export function renderRecyclableComponentTemplate (vnode: MountedComponentVNode): VNode {
   // TODO:
-  // 1. adding @isComponentRoot / @componentProps to the root node
-  // 2. proper error handling
+  // adding @isComponentRoot / @componentProps to the root node
+
+  // $flow-disable-line
   delete vnode.data.attrs[RECYCLE_LIST_MARKER]
-  const instance = createComponentInstanceForVnode(vnode)
-  return instance.$options['@render'].call(instance)
+  const vm = createComponentInstanceForVnode(vnode)
+  const render = (vm.$options: any)['@render']
+  if (render) {
+    try {
+      return render.call(vm)
+    } catch (err) {
+      handleError(err, vm, `@render`)
+    }
+  } else {
+    warn(
+      `@render function not defined on component used in <recycle-list>. ` +
+      `Make sure to declare \`recyclable="true"\` on the component's template.`,
+      vm
+    )
+  }
 }

From b06d09f2745fee9bf99e02d28d579a674d1f3397 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 29 Nov 2017 15:12:08 -0500
Subject: [PATCH 331/911] types: adjust weex flow types

---
 flow/compiler.js                              | 22 ++++++++-----------
 flow/weex.js                                  | 11 ++++++++++
 src/platforms/weex/compiler/index.js          |  9 --------
 .../modules/recycle-list/component.js         |  1 -
 .../compiler/modules/recycle-list/index.js    |  1 -
 .../compiler/modules/recycle-list/text.js     |  2 +-
 .../compiler/modules/recycle-list/v-bind.js   |  2 +-
 .../compiler/modules/recycle-list/v-for.js    |  2 +-
 .../compiler/modules/recycle-list/v-if.js     |  2 +-
 .../compiler/modules/recycle-list/v-on.js     |  2 +-
 10 files changed, 25 insertions(+), 29 deletions(-)
 create mode 100644 flow/weex.js

diff --git a/flow/compiler.js b/flow/compiler.js
index 39e559ac72b..a3dc1c920fd 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -1,34 +1,30 @@
-// global flag to be compiled away
-declare var __WEEX__: boolean;
-
 declare type CompilerOptions = {
   warn?: Function; // allow customizing warning in different environments; e.g. node
-  expectHTML?: boolean; // only false for non-web builds
   modules?: Array<ModuleOptions>; // platform specific modules; e.g. style; class
-  staticKeys?: string; // a list of AST properties to be considered static; for optimization
   directives?: { [key: string]: Function }; // platform specific directives
+  staticKeys?: string; // a list of AST properties to be considered static; for optimization
   isUnaryTag?: (tag: string) => ?boolean; // check if a tag is unary for the platform
   canBeLeftOpenTag?: (tag: string) => ?boolean; // check if a tag can be left opened
   isReservedTag?: (tag: string) => ?boolean; // check if a tag is a native for the platform
+  preserveWhitespace?: boolean; // preserve whitespace between elements?
+  optimize?: boolean; // optimize static content?
+
+  // web specific
   mustUseProp?: (tag: string, type: ?string, name: string) => boolean; // check if an attribute should be bound as a property
   isPreTag?: (attr: string) => ?boolean; // check if a tag needs to preserve whitespace
   getTagNamespace?: (tag: string) => ?string; // check the namespace for a tag
-  transforms?: Array<Function>; // a list of transforms on parsed AST before codegen
-  preserveWhitespace?: boolean;
+  expectHTML?: boolean; // only false for non-web builds
   isFromDOM?: boolean;
   shouldDecodeTags?: boolean;
   shouldDecodeNewlines?:  boolean;
   shouldDecodeNewlinesForHref?: boolean;
-  optimize?: boolean;
-
-  // for ssr optimization compiler
-  scopeId?: string;
 
   // runtime user-configurable
   delimiters?: [string, string]; // template delimiters
+  comments?: boolean; // preserve comments in template
 
-  // allow user kept comments
-  comments?: boolean
+  // for ssr optimization compiler
+  scopeId?: string;
 };
 
 declare type CompiledResult = {
diff --git a/flow/weex.js b/flow/weex.js
new file mode 100644
index 00000000000..2f32bf5c699
--- /dev/null
+++ b/flow/weex.js
@@ -0,0 +1,11 @@
+// global flag to be compiled away
+declare var __WEEX__: boolean;
+
+declare type WeexCompilerOptions = CompilerOptions & {
+  // whether to compile special template for <recycle-list>
+  recyclable?: boolean;
+};
+
+declare type WeexCompiledResult = CompiledResult & {
+  '@render'?: string;
+};
diff --git a/src/platforms/weex/compiler/index.js b/src/platforms/weex/compiler/index.js
index 47d7835f6fe..127de6f1816 100644
--- a/src/platforms/weex/compiler/index.js
+++ b/src/platforms/weex/compiler/index.js
@@ -14,15 +14,6 @@ import {
   getTagNamespace
 } from '../util/index'
 
-export type WeexCompilerOptions = CompilerOptions & {
-  // whether to compile special template for <recycle-list>
-  recyclable?: boolean;
-};
-
-export type WeexCompiledResult = CompiledResult & {
-  '@render'?: string;
-};
-
 export const baseOptions: WeexCompilerOptions = {
   modules,
   directives,
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component.js b/src/platforms/weex/compiler/modules/recycle-list/component.js
index cade4df4423..3358548e7f3 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component.js
@@ -2,7 +2,6 @@
 
 import { addAttr } from 'compiler/helpers'
 import { RECYCLE_LIST_MARKER } from 'weex/util/index'
-import type { WeexCompilerOptions } from 'weex/compiler/index'
 
 // mark components as inside recycle-list so that we know we need to invoke
 // their special @render function instead of render in create-component.js
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index d3cb85a9cba..27973ef93d9 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,6 +1,5 @@
 /* @flow */
 
-import type { WeexCompilerOptions } from 'weex/compiler/index'
 import { postTransformComponent } from './component'
 import { postTransformText } from './text'
 import { preTransformVBind } from './v-bind'
diff --git a/src/platforms/weex/compiler/modules/recycle-list/text.js b/src/platforms/weex/compiler/modules/recycle-list/text.js
index d896d53c4c1..575ec7f6cea 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/text.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/text.js
@@ -13,7 +13,7 @@ function genText (node: ASTNode) {
   return JSON.stringify(value)
 }
 
-export function postTransformText (el: ASTElement, options: CompilerOptions) {
+export function postTransformText (el: ASTElement, options: WeexCompilerOptions) {
   // weex <text> can only contain text, so the parser
   // always generates a single child.
   if (el.children.length) {
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
index a940896df74..3173cacf35e 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -8,7 +8,7 @@ function parseAttrName (name: string): string {
   return camelize(name.replace(bindRE, ''))
 }
 
-export function preTransformVBind (el: ASTElement, options: CompilerOptions) {
+export function preTransformVBind (el: ASTElement, options: WeexCompilerOptions) {
   for (const attr in el.attrsMap) {
     if (bindRE.test(attr)) {
       const name: string = parseAttrName(attr)
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
index 8f3a19d62fe..7dc3243f79e 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-for.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -3,7 +3,7 @@
 import { forAliasRE, forIteratorRE, stripParensRE } from 'compiler/parser/index'
 import { getAndRemoveAttr } from 'compiler/helpers'
 
-export function preTransformVFor (el: ASTElement, options: CompilerOptions) {
+export function preTransformVFor (el: ASTElement, options: WeexCompilerOptions) {
   const exp = getAndRemoveAttr(el, 'v-for')
   if (!exp) {
     return
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
index ffcea24ccdf..50576628055 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-if.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -18,7 +18,7 @@ function getPrevMatch (el: ASTElement): any {
   }
 }
 
-export function preTransformVIf (el: ASTElement, options: CompilerOptions) {
+export function preTransformVIf (el: ASTElement, options: WeexCompilerOptions) {
   if (hasConditionDirective(el)) {
     let exp
     const ifExp = getAndRemoveAttr(el, 'v-if', true /* remove from attrsMap */)
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-on.js b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
index c2f4c19a708..b1ba262c025 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-on.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
@@ -9,7 +9,7 @@ function parseHandlerParams (handler: ASTElementHandler) {
   }
 }
 
-export function postTransformVOn (el: ASTElement, options: CompilerOptions) {
+export function postTransformVOn (el: ASTElement, options: WeexCompilerOptions) {
   const events: ASTElementHandlers | void = el.events
   if (!events) {
     return

From 88f3889f19678981944339be8d22c3ebcd11f822 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 29 Nov 2017 15:38:03 -0500
Subject: [PATCH 332/911] feat(weex): WIP mark recycle list child component
 root

---
 src/compiler/helpers.js                            |  6 ++++++
 src/core/vdom/create-component.js                  |  8 ++++++--
 .../modules/recycle-list/component-root.js         | 14 ++++++++++++++
 .../compiler/modules/recycle-list/component.js     |  9 ++++++---
 .../weex/compiler/modules/recycle-list/index.js    |  6 ++++--
 .../weex/compiler/modules/recycle-list/v-bind.js   |  7 ++-----
 .../weex/compiler/modules/recycle-list/v-for.js    |  5 ++---
 .../weex/compiler/modules/recycle-list/v-if.js     |  5 ++---
 src/platforms/weex/util/index.js                   |  2 +-
 9 files changed, 43 insertions(+), 19 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/component-root.js

diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 2c7cd12760c..1d1feddbf01 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -26,6 +26,12 @@ export function addAttr (el: ASTElement, name: string, value: any) {
   el.plain = false
 }
 
+// add a raw attr (use this in preTransforms)
+export function addRawAttr (el: ASTElement, name: string, value: any) {
+  el.attrsMap[name] = value
+  el.attrsList.push({ name, value })
+}
+
 export function addDirective (
   el: ASTElement,
   name: string,
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 3f857ef2553..21e732f2312 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -4,7 +4,6 @@ import VNode from './vnode'
 import { resolveConstructorOptions } from 'core/instance/init'
 import { queueActivatedComponent } from 'core/observer/scheduler'
 import { createFunctionalComponent } from './create-functional-component'
-import { renderRecyclableComponentTemplate } from 'weex/runtime/recycle-list/render-component-template'
 
 import {
   warn,
@@ -28,6 +27,11 @@ import {
   deactivateChildComponent
 } from '../instance/lifecycle'
 
+import {
+  isRecyclableComponent,
+  renderRecyclableComponentTemplate
+} from 'weex/runtime/recycle-list/render-component-template'
+
 // hooks to be invoked on component VNodes during patch
 const componentVNodeHooks = {
   init (
@@ -196,7 +200,7 @@ export function createComponent (
   // Weex specific: invoke recycle-list optimized @render function for
   // extracting cell-slot template.
   // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  if (__WEEX__ && data.attrs && ('@inRecycleList' in data.attrs)) {
+  if (__WEEX__ && isRecyclableComponent(vnode)) {
     return renderRecyclableComponentTemplate(vnode)
   }
 
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component-root.js b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
new file mode 100644
index 00000000000..d527823ba91
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
@@ -0,0 +1,14 @@
+/* @flow */
+
+import { addRawAttr } from 'compiler/helpers'
+
+// mark component root nodes as
+export function preTransformComponentRoot (
+  el: ASTElement,
+  options: WeexCompilerOptions
+) {
+  if (!el.parent) {
+    // component root
+    addRawAttr(el, '$isComponentRoot', true)
+  }
+}
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component.js b/src/platforms/weex/compiler/modules/recycle-list/component.js
index 3358548e7f3..3558558cf53 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component.js
@@ -1,13 +1,16 @@
 /* @flow */
 
-import { addAttr } from 'compiler/helpers'
+import { addRawAttr } from 'compiler/helpers'
 import { RECYCLE_LIST_MARKER } from 'weex/util/index'
 
 // mark components as inside recycle-list so that we know we need to invoke
 // their special @render function instead of render in create-component.js
-export function postTransformComponent (el: ASTElement, options: WeexCompilerOptions) {
+export function preTransformComponent (
+  el: ASTElement,
+  options: WeexCompilerOptions
+) {
   // $flow-disable-line (we know isReservedTag is there)
   if (!options.isReservedTag(el.tag) && el.tag !== 'cell-slot') {
-    addAttr(el, RECYCLE_LIST_MARKER, true)
+    addRawAttr(el, RECYCLE_LIST_MARKER, 'true')
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 27973ef93d9..329a19475a7 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,6 +1,7 @@
 /* @flow */
 
-import { postTransformComponent } from './component'
+import { preTransformComponent } from './component'
+import { preTransformComponentRoot } from './component-root'
 import { postTransformText } from './text'
 import { preTransformVBind } from './v-bind'
 import { preTransformVIf } from './v-if'
@@ -19,6 +20,8 @@ function preTransformNode (el: ASTElement, options: WeexCompilerOptions) {
     currentRecycleList = el
   }
   if (shouldCompile(el, options)) {
+    preTransformComponent(el, options)
+    preTransformComponentRoot(el, options)
     preTransformVBind(el, options)
     preTransformVIf(el, options) // also v-else-if and v-else
     preTransformVFor(el, options)
@@ -33,7 +36,6 @@ function transformNode (el: ASTElement, options: WeexCompilerOptions) {
 
 function postTransformNode (el: ASTElement, options: WeexCompilerOptions) {
   if (shouldCompile(el, options)) {
-    postTransformComponent(el, options)
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
       postTransformText(el, options)
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
index 3173cacf35e..b8d05a2c628 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -2,7 +2,7 @@
 
 import { camelize } from 'shared/util'
 import { bindRE } from 'compiler/parser/index'
-import { getAndRemoveAttr } from 'compiler/helpers'
+import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
 
 function parseAttrName (name: string): string {
   return camelize(name.replace(bindRE, ''))
@@ -16,10 +16,7 @@ export function preTransformVBind (el: ASTElement, options: WeexCompilerOptions)
         '@binding': getAndRemoveAttr(el, attr)
       }
       delete el.attrsMap[attr]
-      el.attrsMap[name] = value
-      el.attrsList.push({ name, value })
-      // addAttr(el, name, value)
-      // el.hasBindings = false
+      addRawAttr(el, name, value)
     }
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
index 7dc3243f79e..3433288f675 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-for.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -1,7 +1,7 @@
 /* @flow */
 
 import { forAliasRE, forIteratorRE, stripParensRE } from 'compiler/parser/index'
-import { getAndRemoveAttr } from 'compiler/helpers'
+import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
 
 export function preTransformVFor (el: ASTElement, options: WeexCompilerOptions) {
   const exp = getAndRemoveAttr(el, 'v-for')
@@ -26,8 +26,7 @@ export function preTransformVFor (el: ASTElement, options: WeexCompilerOptions)
       }
     }
     delete el.attrsMap['v-for']
-    el.attrsMap['[[repeat]]'] = desc
-    el.attrsList.push({ name: '[[repeat]]', value: desc })
+    addRawAttr(el, '[[repeat]]', desc)
   } else if (process.env.NODE_ENV !== 'production' && options.warn) {
     options.warn(`Invalid v-for expression: ${exp}`)
   }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
index 50576628055..3715cfea1f3 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-if.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { getAndRemoveAttr } from 'compiler/helpers'
+import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
 
 function hasConditionDirective (el: ASTElement): boolean {
   for (const attr in el.attrsMap) {
@@ -42,7 +42,6 @@ export function preTransformVIf (el: ASTElement, options: WeexCompilerOptions) {
         return
       }
     }
-    el.attrsMap['[[match]]'] = exp
-    el.attrsList.push({ name: '[[match]]', value: exp })
+    addRawAttr(el, '[[match]]', exp)
   }
 }
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index cffc2ede799..87a3eb74741 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -4,7 +4,7 @@ declare var document: Object;
 import { makeMap } from 'shared/util'
 import { warn } from 'core/util/index'
 
-export const RECYCLE_LIST_MARKER = '@inRecycleList'
+export const RECYCLE_LIST_MARKER = '$inRecycleList'
 
 export const isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +

From 62e47c9eb4446da79d66ad2385c199f31b4348d8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 29 Nov 2017 15:44:06 -0500
Subject: [PATCH 333/911] feat(weex): WIP adjust component transform stage

---
 .../compiler/modules/recycle-list/component-root.js    |  6 +++---
 .../weex/compiler/modules/recycle-list/component.js    |  6 +++---
 .../weex/compiler/modules/recycle-list/index.js        | 10 ++++++----
 src/platforms/weex/util/index.js                       |  2 +-
 4 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/src/platforms/weex/compiler/modules/recycle-list/component-root.js b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
index d527823ba91..41360786e48 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component-root.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
@@ -1,14 +1,14 @@
 /* @flow */
 
-import { addRawAttr } from 'compiler/helpers'
+import { addAttr } from 'compiler/helpers'
 
 // mark component root nodes as
-export function preTransformComponentRoot (
+export function postTransformComponentRoot (
   el: ASTElement,
   options: WeexCompilerOptions
 ) {
   if (!el.parent) {
     // component root
-    addRawAttr(el, '$isComponentRoot', true)
+    addAttr(el, '@isComponentRoot', 'true')
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component.js b/src/platforms/weex/compiler/modules/recycle-list/component.js
index 3558558cf53..36d7dfd504f 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component.js
@@ -1,16 +1,16 @@
 /* @flow */
 
-import { addRawAttr } from 'compiler/helpers'
+import { addAttr } from 'compiler/helpers'
 import { RECYCLE_LIST_MARKER } from 'weex/util/index'
 
 // mark components as inside recycle-list so that we know we need to invoke
 // their special @render function instead of render in create-component.js
-export function preTransformComponent (
+export function postTransformComponent (
   el: ASTElement,
   options: WeexCompilerOptions
 ) {
   // $flow-disable-line (we know isReservedTag is there)
   if (!options.isReservedTag(el.tag) && el.tag !== 'cell-slot') {
-    addRawAttr(el, RECYCLE_LIST_MARKER, 'true')
+    addAttr(el, RECYCLE_LIST_MARKER, 'true')
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 329a19475a7..d163c2d8547 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,7 +1,7 @@
 /* @flow */
 
-import { preTransformComponent } from './component'
-import { preTransformComponentRoot } from './component-root'
+import { postTransformComponent } from './component'
+import { postTransformComponentRoot } from './component-root'
 import { postTransformText } from './text'
 import { preTransformVBind } from './v-bind'
 import { preTransformVIf } from './v-if'
@@ -20,8 +20,6 @@ function preTransformNode (el: ASTElement, options: WeexCompilerOptions) {
     currentRecycleList = el
   }
   if (shouldCompile(el, options)) {
-    preTransformComponent(el, options)
-    preTransformComponentRoot(el, options)
     preTransformVBind(el, options)
     preTransformVIf(el, options) // also v-else-if and v-else
     preTransformVFor(el, options)
@@ -36,6 +34,10 @@ function transformNode (el: ASTElement, options: WeexCompilerOptions) {
 
 function postTransformNode (el: ASTElement, options: WeexCompilerOptions) {
   if (shouldCompile(el, options)) {
+    // mark child component in parent template
+    postTransformComponent(el, options)
+    // mark root in child component template
+    postTransformComponentRoot(el, options)
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
       postTransformText(el, options)
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index 87a3eb74741..cffc2ede799 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -4,7 +4,7 @@ declare var document: Object;
 import { makeMap } from 'shared/util'
 import { warn } from 'core/util/index'
 
-export const RECYCLE_LIST_MARKER = '$inRecycleList'
+export const RECYCLE_LIST_MARKER = '@inRecycleList'
 
 export const isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +

From 452a65c98a9354bb529185638475b72d8ca19543 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 29 Nov 2017 15:48:28 -0500
Subject: [PATCH 334/911] feat(weex): pass stateless component test case

---
 .../weex/compiler/modules/recycle-list/component-root.js  | 1 +
 test/weex/cases/recycle-list/components/stateless.vdom.js | 8 ++++----
 test/weex/helpers/index.js                                | 2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/platforms/weex/compiler/modules/recycle-list/component-root.js b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
index 41360786e48..cc8325c9922 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component-root.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
@@ -10,5 +10,6 @@ export function postTransformComponentRoot (
   if (!el.parent) {
     // component root
     addAttr(el, '@isComponentRoot', 'true')
+    addAttr(el, '@componentProps', JSON.stringify({}))
   }
 }
diff --git a/test/weex/cases/recycle-list/components/stateless.vdom.js b/test/weex/cases/recycle-list/components/stateless.vdom.js
index 06afdbf572a..ac8c641e143 100644
--- a/test/weex/cases/recycle-list/components/stateless.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless.vdom.js
@@ -13,11 +13,11 @@
     attr: { templateType: 'A' },
     children: [{
       type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {}
+      },
       // not supported yet
-      // attr: {
-      //   '@isComponentRoot': true,
-      //   '@componentProps': {}
-      // },
       // style: {
       //   height: '120px',
       //   justifyContent: 'center',
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index 9f85091501e..1f46616ec8f 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -114,7 +114,7 @@ function omitUseless (object) {
   if (isObject(object)) {
     delete object.ref
     for (const key in object) {
-      if (isEmptyObject(object[key]) || object[key] === undefined) {
+      if (key.charAt(0) !== '@' && (isEmptyObject(object[key]) || object[key] === undefined)) {
         delete object[key]
       }
       omitUseless(object[key])

From 70b97ac2f43099a57ce2fb0a23dea0553ba95189 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 29 Nov 2017 16:10:18 -0500
Subject: [PATCH 335/911] feat(weex): recycle-list support stateful child
 component

---
 src/core/util/props.js                        |  6 +-
 .../modules/recycle-list/component-root.js    |  2 +-
 .../recycle-list/render-component-template.js |  3 -
 test/weex/cases/cases.spec.js                 | 68 +++++++++----------
 .../cases/recycle-list/components/poster.vue  |  2 +-
 5 files changed, 40 insertions(+), 41 deletions(-)

diff --git a/src/core/util/props.js b/src/core/util/props.js
index 310514d7df6..bea6c92691e 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -45,7 +45,11 @@ export function validateProp (
     observe(value)
     observerState.shouldConvert = prevShouldConvert
   }
-  if (process.env.NODE_ENV !== 'production') {
+  if (
+    process.env.NODE_ENV !== 'production' &&
+    // skip validation for weex recycle-list child component props
+    !(__WEEX__ && isObject(value) && ('@binding' in value))
+  ) {
     assertProp(prop, key, value, vm, absent)
   }
   return value
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component-root.js b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
index cc8325c9922..48abb622fd1 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component-root.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
@@ -10,6 +10,6 @@ export function postTransformComponentRoot (
   if (!el.parent) {
     // component root
     addAttr(el, '@isComponentRoot', 'true')
-    addAttr(el, '@componentProps', JSON.stringify({}))
+    addAttr(el, '@componentProps', '$props || {}')
   }
 }
diff --git a/src/platforms/weex/runtime/recycle-list/render-component-template.js b/src/platforms/weex/runtime/recycle-list/render-component-template.js
index bd3f7f05731..a5cd4b528c6 100644
--- a/src/platforms/weex/runtime/recycle-list/render-component-template.js
+++ b/src/platforms/weex/runtime/recycle-list/render-component-template.js
@@ -12,9 +12,6 @@ export function isRecyclableComponent (vnode: VNodeWithData): boolean {
 }
 
 export function renderRecyclableComponentTemplate (vnode: MountedComponentVNode): VNode {
-  // TODO:
-  // adding @isComponentRoot / @componentProps to the root node
-
   // $flow-disable-line
   delete vnode.data.attrs[RECYCLE_LIST_MARKER]
   const vm = createComponentInstanceForVnode(vnode)
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index 09e037a84c8..ee04604bc9f 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -84,41 +84,39 @@ describe('Usage', () => {
       }).catch(done.fail)
     })
 
-    // it('stateless component with props', done => {
-    //   compileWithDeps('recycle-list/components/stateless-with-props.vue', [{
-    //     name: 'poster',
-    //     path: 'recycle-list/components/poster.vue'
-    //   }]).then(code => {
-    //     const id = String(Date.now() * Math.random())
-    //     const instance = createInstance(id, code)
-    //     setTimeout(() => {
-    //       const target = readObject('recycle-list/components/stateless-with-props.vdom.js')
-    //       expect(getRoot(instance)).toEqual(target)
-    //       done()
-    //     }, 50)
-    //   }).catch(done.fail)
-    // })
+    it('stateless component with props', done => {
+      compileWithDeps('recycle-list/components/stateless-with-props.vue', [{
+        name: 'poster',
+        path: 'recycle-list/components/poster.vue'
+      }]).then(code => {
+        const id = String(Date.now() * Math.random())
+        const instance = createInstance(id, code)
+        setTimeout(() => {
+          const target = readObject('recycle-list/components/stateless-with-props.vdom.js')
+          expect(getRoot(instance)).toEqual(target)
+          done()
+        }, 50)
+      }).catch(done.fail)
+    })
 
-    // it('stateful component', done => {
-    //   compileWithDeps('recycle-list/components/stateful.vue', [{
-    //     name: 'counter',
-    //     path: 'recycle-list/components/counter.vue'
-    //   }]).then(code => {
-    //     const id = String(Date.now() * Math.random())
-    //     const instance = createInstance(id, code)
-    //     setTimeout(() => {
-    //       const target = readObject('recycle-list/components/stateful.vdom.js')
-    //       expect(getRoot(instance)).toEqual(target)
-    //       const event = getEvents(instance)[0]
-    //       fireEvent(instance, event.ref, event.type, {})
-    //       setTimeout(() => {
-    //         // TODO: check render results
-    //         // expect(getRoot(instance)).toEqual(target)
-    //         done()
-    //       })
-    //     }, 50)
-    //   }).catch(done.fail)
-    // })
+    it('stateful component', done => {
+      compileWithDeps('recycle-list/components/stateful.vue', [{
+        name: 'counter',
+        path: 'recycle-list/components/counter.vue'
+      }]).then(code => {
+        const id = String(Date.now() * Math.random())
+        const instance = createInstance(id, code)
+        setTimeout(() => {
+          const target = readObject('recycle-list/components/stateful.vdom.js')
+          expect(getRoot(instance)).toEqual(target)
+          const event = getEvents(instance)[0]
+          fireEvent(instance, event.ref, event.type, {})
+          setTimeout(() => {
+            expect(getRoot(instance)).toEqual(target)
+            done()
+          })
+        }, 50)
+      }).catch(done.fail)
+    })
   })
 })
-
diff --git a/test/weex/cases/recycle-list/components/poster.vue b/test/weex/cases/recycle-list/components/poster.vue
index 9bb6bb27a5c..61571854ee7 100644
--- a/test/weex/cases/recycle-list/components/poster.vue
+++ b/test/weex/cases/recycle-list/components/poster.vue
@@ -1,4 +1,4 @@
-<template>
+<template recyclable="true">
   <div>
     <image class="image" :src="imageUrl"></image>
     <text class="title">{{title}}</text>

From b8d33ecd9ab8b7a46d8558b4e2caf506235cd165 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 4 Dec 2017 22:59:00 +0800
Subject: [PATCH 336/911] feat(weex): WIP implement virtual component (#7165)

---
 flow/component.js                             |   2 +-
 package.json                                  |   2 +-
 src/core/instance/init.js                     |   2 +-
 .../recycle-list/render-component-template.js |   2 +
 .../runtime/recycle-list/virtual-component.js |  96 +++++++++++++++--
 test/weex/cases/cases.spec.js                 |  67 +++++++++++-
 .../cases/recycle-list/components/editor.vue  |  31 ++++++
 .../cases/recycle-list/components/footer.vue  |  18 ++++
 .../components/stateful-v-model.vdom.js       |  48 +++++++++
 .../components/stateful-v-model.vue           |  21 ++++
 .../stateless-multi-components.vdom.js        | 100 ++++++++++++++++++
 .../components/stateless-multi-components.vue |  30 ++++++
 test/weex/helpers/index.js                    |  21 ++++
 13 files changed, 430 insertions(+), 10 deletions(-)
 create mode 100644 test/weex/cases/recycle-list/components/editor.vue
 create mode 100644 test/weex/cases/recycle-list/components/footer.vue
 create mode 100644 test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
 create mode 100644 test/weex/cases/recycle-list/components/stateful-v-model.vue
 create mode 100644 test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
 create mode 100644 test/weex/cases/recycle-list/components/stateless-multi-components.vue

diff --git a/flow/component.js b/flow/component.js
index 4159677777c..bf984cd6dc3 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -48,7 +48,7 @@ declare interface Component {
   $createElement: (tag?: string | Component, data?: Object, children?: VNodeChildren) => VNode;
 
   // private properties
-  _uid: number;
+  _uid: number | string;
   _name: string; // this only exists in dev mode
   _isVue: true;
   _self: Component;
diff --git a/package.json b/package.json
index 48401a53c99..fe58ff26342 100644
--- a/package.json
+++ b/package.json
@@ -125,7 +125,7 @@
     "typescript": "^2.6.1",
     "uglify-js": "^3.0.15",
     "webpack": "^3.10.0",
-    "weex-js-runtime": "^0.23.1",
+    "weex-js-runtime": "^0.23.3",
     "weex-styler": "^0.3.0"
   },
   "config": {
diff --git a/src/core/instance/init.js b/src/core/instance/init.js
index 1a60cc4f99f..ed2550d09ae 100644
--- a/src/core/instance/init.js
+++ b/src/core/instance/init.js
@@ -71,7 +71,7 @@ export function initMixin (Vue: Class<Component>) {
   }
 }
 
-function initInternalComponent (vm: Component, options: InternalComponentOptions) {
+export function initInternalComponent (vm: Component, options: InternalComponentOptions) {
   const opts = vm.$options = Object.create(vm.constructor.options)
   // doing this because it's faster than dynamic enumeration.
   const parentVnode = options._parentVnode
diff --git a/src/platforms/weex/runtime/recycle-list/render-component-template.js b/src/platforms/weex/runtime/recycle-list/render-component-template.js
index a5cd4b528c6..17e8c018bd5 100644
--- a/src/platforms/weex/runtime/recycle-list/render-component-template.js
+++ b/src/platforms/weex/runtime/recycle-list/render-component-template.js
@@ -4,6 +4,7 @@ import { warn } from 'core/util/debug'
 import { handleError } from 'core/util/error'
 import { RECYCLE_LIST_MARKER } from 'weex/util/index'
 import { createComponentInstanceForVnode } from 'core/vdom/create-component'
+import { resolveVirtualComponent } from './virtual-component'
 
 export function isRecyclableComponent (vnode: VNodeWithData): boolean {
   return vnode.data.attrs
@@ -14,6 +15,7 @@ export function isRecyclableComponent (vnode: VNodeWithData): boolean {
 export function renderRecyclableComponentTemplate (vnode: MountedComponentVNode): VNode {
   // $flow-disable-line
   delete vnode.data.attrs[RECYCLE_LIST_MARKER]
+  resolveVirtualComponent(vnode)
   const vm = createComponentInstanceForVnode(vnode)
   const render = (vm.$options: any)['@render']
   if (render) {
diff --git a/src/platforms/weex/runtime/recycle-list/virtual-component.js b/src/platforms/weex/runtime/recycle-list/virtual-component.js
index da378da87ac..ed370d8c9fb 100644
--- a/src/platforms/weex/runtime/recycle-list/virtual-component.js
+++ b/src/platforms/weex/runtime/recycle-list/virtual-component.js
@@ -1,6 +1,90 @@
-// import {
-//   // id, 'lifecycle', hookname, fn
-//   // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-//   registerComponentHook,
-//   updateComponentData
-// } from '../util/index'
+/* @flow */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+import { mergeOptions } from 'core/util/index'
+import { initProxy } from 'core/instance/proxy'
+import { initState } from 'core/instance/state'
+import { initRender } from 'core/instance/render'
+import { initEvents } from 'core/instance/events'
+import { initProvide, initInjections } from 'core/instance/inject'
+import { initLifecycle, mountComponent, callHook } from 'core/instance/lifecycle'
+import { initInternalComponent, resolveConstructorOptions } from 'core/instance/init'
+import { registerComponentHook, updateComponentData } from '../../util/index'
+
+let uid = 0
+
+// override Vue.prototype._init
+function initVirtualComponent (options: Object = {}) {
+  const vm: Component = this
+  const componentId = options.componentId
+
+  // virtual component uid
+  vm._uid = `virtual-component-${uid++}`
+
+  // a flag to avoid this being observed
+  vm._isVue = true
+  // merge options
+  if (options && options._isComponent) {
+    // optimize internal component instantiation
+    // since dynamic options merging is pretty slow, and none of the
+    // internal component options needs special treatment.
+    initInternalComponent(vm, options)
+  } else {
+    vm.$options = mergeOptions(
+      resolveConstructorOptions(vm.constructor),
+      options || {},
+      vm
+    )
+  }
+
+  /* istanbul ignore else */
+  if (process.env.NODE_ENV !== 'production') {
+    initProxy(vm)
+  } else {
+    vm._renderProxy = vm
+  }
+
+  vm._self = vm
+  initLifecycle(vm)
+  initEvents(vm)
+  initRender(vm)
+  callHook(vm, 'beforeCreate')
+  initInjections(vm) // resolve injections before data/props
+  initState(vm)
+  initProvide(vm) // resolve provide after data/props
+  callHook(vm, 'created')
+
+  registerComponentHook(componentId, 'lifecycle', 'attach', () => {
+    mountComponent(vm)
+  })
+
+  registerComponentHook(componentId, 'lifecycle', 'detach', () => {
+    vm.$destroy()
+  })
+}
+
+// override Vue.prototype._update
+function updateVirtualComponent (vnode: VNode, hydrating?: boolean) {
+  // TODO
+  updateComponentData(this.$options.componentId, {})
+}
+
+// listening on native callback
+export function resolveVirtualComponent (vnode: MountedComponentVNode): VNode {
+  const BaseCtor = vnode.componentOptions.Ctor
+  const VirtualComponent = BaseCtor.extend({})
+  VirtualComponent.prototype._init = initVirtualComponent
+  VirtualComponent.prototype._update = updateVirtualComponent
+
+  vnode.componentOptions.Ctor = BaseCtor.extend({
+    beforeCreate () {
+      registerComponentHook(VirtualComponent.cid, 'lifecycle', 'create', componentId => {
+        // create virtual component
+        const options = { componentId }
+        return new VirtualComponent(options)
+      })
+    }
+  })
+}
+
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index ee04604bc9f..72a86ff6025 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -4,6 +4,8 @@ import {
   compileVue,
   compileWithDeps,
   createInstance,
+  addTaskHook,
+  resetTaskHook,
   getRoot,
   getEvents,
   fireEvent
@@ -19,6 +21,7 @@ function createRenderTestCase (name) {
       const instance = createInstance(id, code)
       setTimeout(() => {
         expect(getRoot(instance)).toEqual(target)
+        instance.$destroy()
         done()
       }, 50)
     }).catch(done.fail)
@@ -40,6 +43,7 @@ function createEventTestCase (name) {
         fireEvent(instance, event.ref, event.type, {})
         setTimeout(() => {
           expect(getRoot(instance)).toEqual(after)
+          instance.$destroy()
           done()
         }, 50)
       }, 50)
@@ -79,6 +83,7 @@ describe('Usage', () => {
         setTimeout(() => {
           const target = readObject('recycle-list/components/stateless.vdom.js')
           expect(getRoot(instance)).toEqual(target)
+          instance.$destroy()
           done()
         }, 50)
       }).catch(done.fail)
@@ -94,29 +99,89 @@ describe('Usage', () => {
         setTimeout(() => {
           const target = readObject('recycle-list/components/stateless-with-props.vdom.js')
           expect(getRoot(instance)).toEqual(target)
+          instance.$destroy()
+          done()
+        }, 50)
+      }).catch(done.fail)
+    })
+
+    it('multi stateless components', done => {
+      compileWithDeps('recycle-list/components/stateless-multi-components.vue', [{
+        name: 'banner',
+        path: 'recycle-list/components/banner.vue'
+      }, {
+        name: 'poster',
+        path: 'recycle-list/components/poster.vue'
+      }, {
+        name: 'footer',
+        path: 'recycle-list/components/footer.vue'
+      }]).then(code => {
+        const id = String(Date.now() * Math.random())
+        const instance = createInstance(id, code)
+        setTimeout(() => {
+          const target = readObject('recycle-list/components/stateless-multi-components.vdom.js')
+          expect(getRoot(instance)).toEqual(target)
+          instance.$destroy()
           done()
         }, 50)
       }).catch(done.fail)
     })
 
     it('stateful component', done => {
+      const tasks = []
+      addTaskHook((_, task) => tasks.push(task))
       compileWithDeps('recycle-list/components/stateful.vue', [{
         name: 'counter',
         path: 'recycle-list/components/counter.vue'
       }]).then(code => {
         const id = String(Date.now() * Math.random())
         const instance = createInstance(id, code)
+        expect(tasks.length).toEqual(7)
+        tasks.length = 0
+        instance.$triggerHook(2, 'create', ['component-1'])
+        instance.$triggerHook(2, 'create', ['component-2'])
+        instance.$triggerHook('component-1', 'attach')
+        instance.$triggerHook('component-2', 'attach')
+        expect(tasks.length).toEqual(2)
+        expect(tasks[0].method).toEqual('updateComponentData')
+        // expect(tasks[0].args).toEqual([{ count: 42 }])
+        expect(tasks[1].method).toEqual('updateComponentData')
+        // expect(tasks[1].args).toEqual([{ count: 42 }])
         setTimeout(() => {
           const target = readObject('recycle-list/components/stateful.vdom.js')
           expect(getRoot(instance)).toEqual(target)
           const event = getEvents(instance)[0]
+          tasks.length = 0
           fireEvent(instance, event.ref, event.type, {})
           setTimeout(() => {
-            expect(getRoot(instance)).toEqual(target)
+            // expect(tasks.length).toEqual(1)
+            // expect(tasks[0]).toEqual({
+            //   module: 'dom',
+            //   method: 'updateComponentData',
+            //   args: [{ count: 43 }]
+            // })
+            instance.$destroy()
+            resetTaskHook()
             done()
           })
         }, 50)
       }).catch(done.fail)
     })
+
+    it('stateful component with v-model', done => {
+      compileWithDeps('recycle-list/components/stateful-v-model.vue', [{
+        name: 'editor',
+        path: 'recycle-list/components/editor.vue'
+      }]).then(code => {
+        const id = String(Date.now() * Math.random())
+        const instance = createInstance(id, code)
+        setTimeout(() => {
+          const target = readObject('recycle-list/components/stateful-v-model.vdom.js')
+          expect(getRoot(instance)).toEqual(target)
+          instance.$destroy()
+          done()
+        }, 50)
+      }).catch(done.fail)
+    })
   })
 })
diff --git a/test/weex/cases/recycle-list/components/editor.vue b/test/weex/cases/recycle-list/components/editor.vue
new file mode 100644
index 00000000000..11d3ea1bc55
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/editor.vue
@@ -0,0 +1,31 @@
+<template recyclable="true">
+  <div>
+    <text class="output">{{output}}</text>
+    <input class="input" type="text" v-model="output" />
+  </div>
+</template>
+
+<script>
+  module.exports = {
+    props: ['message'],
+    data () {
+      return {
+        output: this.message | ''
+      }
+    }
+  }
+</script>
+
+<style scoped>
+  .output {
+    height: 80px;
+    font-size: 60px;
+    color: #41B883;
+  }
+  .input {
+    font-size: 50px;
+    color: #666666;
+    border-width: 2px;
+    border-color: #41B883;
+  }
+</style>
diff --git a/test/weex/cases/recycle-list/components/footer.vue b/test/weex/cases/recycle-list/components/footer.vue
new file mode 100644
index 00000000000..b3fe0c8b038
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/footer.vue
@@ -0,0 +1,18 @@
+<template recyclable="true">
+  <div class="footer">
+    <text class="copyright">All rights reserved.</text>
+  </div>
+</template>
+
+<style scoped>
+  .footer {
+    height: 80px;
+    justify-content: center;
+    background-color: #EEEEEE;
+  }
+  .copyright {
+    color: #AAAAAA;
+    font-size: 32px;
+    text-align: center;
+  }
+</style>
diff --git a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
new file mode 100644
index 00000000000..e4bcf9ba2fa
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
@@ -0,0 +1,48 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {
+          message: 'No binding'
+        }
+      },
+      children: [{
+        type: 'text',
+        style: {
+          height: '80px',
+          fontSize: '60px',
+          color: '#41B883'
+        },
+        attr: {
+          value: { '@binding': 'output' }
+        }
+      }, {
+        type: 'input',
+        event: ['input'],
+        style: {
+          fontSize: '50px',
+          color: '#666666',
+          borderWidth: '2px',
+          borderColor: '#41B883'
+        },
+        attr: {
+          type: 'text',
+          value: 0
+        }
+      }]
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/components/stateful-v-model.vue b/test/weex/cases/recycle-list/components/stateful-v-model.vue
new file mode 100644
index 00000000000..7a998a8bbb3
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateful-v-model.vue
@@ -0,0 +1,21 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <editor message="No binding"></editor>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  // require('./editor.vue')
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
diff --git a/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
new file mode 100644
index 00000000000..6dd60872659
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
@@ -0,0 +1,100 @@
+({
+  type: 'recycle-list',
+  attr: {
+    listData: [
+      { type: 'A' },
+      { type: 'B', poster: 'yy', title: 'y' },
+      { type: 'A' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { templateType: 'A' },
+    children: [{
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {}
+      },
+      // style: {
+      //   height: '120px',
+      //   justifyContent: 'center',
+      //   alignItems: 'center',
+      //   backgroundColor: 'rgb(162, 217, 192)'
+      // },
+      children: [{
+        type: 'text',
+        // style: {
+        //   fontWeight: 'bold',
+        //   color: '#41B883',
+        //   fontSize: '60px'
+        // },
+        attr: { value: 'BANNER' }
+      }]
+    }, {
+      type: 'text',
+      attr: { value: '----' }
+    }, {
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {}
+      },
+      style: { height: '80px', justifyContent: 'center', backgroundColor: '#EEEEEE' },
+      children: [{
+        type: 'text',
+        style: { color: '#AAAAAA', fontSize: '32px', textAlign: 'center' },
+        attr: { value: 'All rights reserved.' }
+      }]
+    }]
+  }, {
+    type: 'cell-slot',
+    attr: { templateType: 'B' },
+    children: [{
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {}
+      },
+      // style: {
+      //   height: '120px',
+      //   justifyContent: 'center',
+      //   alignItems: 'center',
+      //   backgroundColor: 'rgb(162, 217, 192)'
+      // },
+      children: [{
+        type: 'text',
+        // style: {
+        //   fontWeight: 'bold',
+        //   color: '#41B883',
+        //   fontSize: '60px'
+        // },
+        attr: { value: 'BANNER' }
+      }]
+    }, {
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {
+          imageUrl: { '@binding': 'item.poster' },
+          title: { '@binding': 'item.title' }
+        }
+      },
+      children: [{
+        type: 'image',
+        style: { width: '750px', height: '1000px' },
+        attr: {
+          src: { '@binding': 'imageUrl' }
+        }
+      }, {
+        type: 'text',
+        style: { fontSize: '80px', textAlign: 'center', color: '#E95659' },
+        attr: {
+          value: { '@binding': 'title' }
+        }
+      }]
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/components/stateless-multi-components.vue b/test/weex/cases/recycle-list/components/stateless-multi-components.vue
new file mode 100644
index 00000000000..38fd0823b7e
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateless-multi-components.vue
@@ -0,0 +1,30 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="A">
+      <banner></banner>
+      <text>----</text>
+      <footer></footer>
+    </cell-slot>
+    <cell-slot template-type="B">
+      <banner></banner>
+      <poster :image-url="item.poster" :title="item.title"></poster>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  // require('./banner.vue')
+  // require('./footer.vue')
+  // require('./poster.vue')
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'A' },
+          { type: 'B', poster: 'yy', title: 'y' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index 1f46616ec8f..6ed807cb867 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -161,6 +161,9 @@ export function createInstance (id, code, ...args) {
   const instance = context.createInstance(id, `// { "framework": "Vue" }\n${code}`, ...args)
   instance.$refresh = (data) => context.refreshInstance(id, data)
   instance.$destroy = () => context.destroyInstance(id)
+  instance.$triggerHook = (id, hook, args) => {
+    instance.document.taskCenter.triggerHook(id, 'lifecycle', hook, { args })
+  }
   return instance
 }
 
@@ -197,3 +200,21 @@ export function checkRefresh (instance, data, checker) {
     })
   })
 }
+
+export function addTaskHook (hook) {
+  global.callNative = function callNative (id, tasks) {
+    if (Array.isArray(tasks) && typeof hook === 'function') {
+      tasks.forEach(task => {
+        hook(id, {
+          module: task.module,
+          method: task.method,
+          args: Array.from(task.args)
+        })
+      })
+    }
+  }
+}
+
+export function resetTaskHook () {
+  delete global.callNative
+}

From d544d052a9c5ec113c253895211296120d58b6ab Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 11 Dec 2017 22:48:36 +0800
Subject: [PATCH 337/911] fix(weex): append as tree by default for recycle-list
 and cell-slot (#7216)

---
 src/platforms/weex/compiler/modules/append.js |  8 ++++-
 test/weex/cases/cases.spec.js                 |  2 +-
 test/weex/cases/recycle-list/attrs.vdom.js    |  3 +-
 .../weex/cases/recycle-list/classname.vdom.js |  3 +-
 .../components/stateful-v-model.vdom.js       |  3 +-
 .../recycle-list/components/stateful.vdom.js  |  3 +-
 .../stateless-multi-components.vdom.js        |  5 +--
 .../components/stateless-with-props.vdom.js   |  3 +-
 .../recycle-list/components/stateless.vdom.js |  3 +-
 .../cases/recycle-list/inline-style.vdom.js   |  3 +-
 .../weex/cases/recycle-list/text-node.vdom.js |  3 +-
 .../weex/cases/recycle-list/v-else-if.vdom.js |  3 +-
 test/weex/cases/recycle-list/v-else.vdom.js   |  3 +-
 .../cases/recycle-list/v-for-iterator.vdom.js |  3 +-
 test/weex/cases/recycle-list/v-for.vdom.js    |  3 +-
 test/weex/cases/recycle-list/v-if.vdom.js     |  3 +-
 .../cases/recycle-list/v-on-inline.vdom.js    |  3 +-
 test/weex/cases/recycle-list/v-on.vdom.js     |  3 +-
 test/weex/compiler/append.spec.js             | 35 ++++++++++++++++++-
 19 files changed, 75 insertions(+), 20 deletions(-)

diff --git a/src/platforms/weex/compiler/modules/append.js b/src/platforms/weex/compiler/modules/append.js
index 71a1a816018..6e7be2674dc 100644
--- a/src/platforms/weex/compiler/modules/append.js
+++ b/src/platforms/weex/compiler/modules/append.js
@@ -1,7 +1,13 @@
 /* @flow */
 
+import { makeMap } from 'shared/util'
+
+// The "unitary tag" means that the tag node and its children
+// must be sent to the native together.
+const isUnitaryTag = makeMap('cell,header,cell-slot,recycle-list', true)
+
 function preTransformNode (el: ASTElement, options: CompilerOptions) {
-  if (el.tag === 'cell' && !el.attrsList.some(item => item.name === 'append')) {
+  if (isUnitaryTag(el.tag) && !el.attrsList.some(item => item.name === 'append')) {
     el.attrsMap.append = 'tree'
     el.attrsList.push({ name: 'append', value: 'tree' })
   }
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index 72a86ff6025..532544cdd17 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -136,7 +136,7 @@ describe('Usage', () => {
       }]).then(code => {
         const id = String(Date.now() * Math.random())
         const instance = createInstance(id, code)
-        expect(tasks.length).toEqual(7)
+        expect(tasks.length).toEqual(3)
         tasks.length = 0
         instance.$triggerHook(2, 'create', ['component-1'])
         instance.$triggerHook(2, 'create', ['component-2'])
diff --git a/test/weex/cases/recycle-list/attrs.vdom.js b/test/weex/cases/recycle-list/attrs.vdom.js
index 175d355fb6b..0d15ed8341b 100644
--- a/test/weex/cases/recycle-list/attrs.vdom.js
+++ b/test/weex/cases/recycle-list/attrs.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A', count: 1, source: 'http://whatever.com/x.png' },
       { type: 'A', count: 2, source: 'http://whatever.com/y.png' },
@@ -11,7 +12,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/classname.vdom.js b/test/weex/cases/recycle-list/classname.vdom.js
index c09989b9224..45fcff829e3 100644
--- a/test/weex/cases/recycle-list/classname.vdom.js
+++ b/test/weex/cases/recycle-list/classname.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A', color: 'red' },
       { type: 'A', color: 'blue' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     style: {
       backgroundColor: '#FF6600'
     },
diff --git a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
index e4bcf9ba2fa..97f055e73fb 100644
--- a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateful.vdom.js b/test/weex/cases/recycle-list/components/stateful.vdom.js
index 05af92f02da..f716bc1ad0a 100644
--- a/test/weex/cases/recycle-list/components/stateful.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A', number: 24 },
       { type: 'A', number: 42 }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
index 6dd60872659..4d91101a82e 100644
--- a/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'B', poster: 'yy', title: 'y' },
@@ -11,7 +12,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'div',
       attr: {
@@ -51,7 +52,7 @@
     }]
   }, {
     type: 'cell-slot',
-    attr: { templateType: 'B' },
+    attr: { append: 'tree', templateType: 'B' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
index 451f3ee2488..782cdd4d93a 100644
--- a/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A', poster: 'xx', title: 'x' },
       { type: 'A', poster: 'yy', title: 'y' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateless.vdom.js b/test/weex/cases/recycle-list/components/stateless.vdom.js
index ac8c641e143..da3b2b52018 100644
--- a/test/weex/cases/recycle-list/components/stateless.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/inline-style.vdom.js b/test/weex/cases/recycle-list/inline-style.vdom.js
index 57732c04b47..bac7961c56d 100644
--- a/test/weex/cases/recycle-list/inline-style.vdom.js
+++ b/test/weex/cases/recycle-list/inline-style.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A', color: '#606060' },
       { type: 'A', color: '#E5E5E5' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     style: {
       backgroundColor: '#FF6600'
     },
diff --git a/test/weex/cases/recycle-list/text-node.vdom.js b/test/weex/cases/recycle-list/text-node.vdom.js
index 5808ea0bfd4..4b7c834c7f1 100644
--- a/test/weex/cases/recycle-list/text-node.vdom.js
+++ b/test/weex/cases/recycle-list/text-node.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A', dynamic: 'decimal', two: '2', four: '4' },
       { type: 'A', dynamic: 'binary', two: '10', four: '100' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'text',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-else-if.vdom.js b/test/weex/cases/recycle-list/v-else-if.vdom.js
index 3bdcfb2be7b..781e327e4e9 100644
--- a/test/weex/cases/recycle-list/v-else-if.vdom.js
+++ b/test/weex/cases/recycle-list/v-else-if.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-else.vdom.js b/test/weex/cases/recycle-list/v-else.vdom.js
index 0a42c8c2bb1..466cb379a24 100644
--- a/test/weex/cases/recycle-list/v-else.vdom.js
+++ b/test/weex/cases/recycle-list/v-else.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-for-iterator.vdom.js b/test/weex/cases/recycle-list/v-for-iterator.vdom.js
index 872ad661b38..ea164fe93eb 100644
--- a/test/weex/cases/recycle-list/v-for-iterator.vdom.js
+++ b/test/weex/cases/recycle-list/v-for-iterator.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-for.vdom.js b/test/weex/cases/recycle-list/v-for.vdom.js
index 19ed8935774..0060e34c4b2 100644
--- a/test/weex/cases/recycle-list/v-for.vdom.js
+++ b/test/weex/cases/recycle-list/v-for.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-if.vdom.js b/test/weex/cases/recycle-list/v-if.vdom.js
index 2a3d58784ad..fc9405d80e8 100644
--- a/test/weex/cases/recycle-list/v-if.vdom.js
+++ b/test/weex/cases/recycle-list/v-if.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-on-inline.vdom.js b/test/weex/cases/recycle-list/v-on-inline.vdom.js
index 284871a4b2f..436a12d80ee 100644
--- a/test/weex/cases/recycle-list/v-on-inline.vdom.js
+++ b/test/weex/cases/recycle-list/v-on-inline.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'text',
       event: ['click', {
diff --git a/test/weex/cases/recycle-list/v-on.vdom.js b/test/weex/cases/recycle-list/v-on.vdom.js
index 63a7c3c6aed..be347c34d8b 100644
--- a/test/weex/cases/recycle-list/v-on.vdom.js
+++ b/test/weex/cases/recycle-list/v-on.vdom.js
@@ -1,6 +1,7 @@
 ({
   type: 'recycle-list',
   attr: {
+    append: 'tree',
     listData: [
       { type: 'A' },
       { type: 'A' }
@@ -10,7 +11,7 @@
   },
   children: [{
     type: 'cell-slot',
-    attr: { templateType: 'A' },
+    attr: { append: 'tree', templateType: 'A' },
     children: [{
       type: 'text',
       event: ['click', 'longpress'],
diff --git a/test/weex/compiler/append.spec.js b/test/weex/compiler/append.spec.js
index 341a8fb23e6..60ceccd328f 100644
--- a/test/weex/compiler/append.spec.js
+++ b/test/weex/compiler/append.spec.js
@@ -2,7 +2,7 @@ import { compile } from '../../../packages/weex-template-compiler'
 import { strToRegExp } from '../helpers/index'
 
 describe('append props', () => {
-  it('append="tree"', () => {
+  it('add append="tree" on <cell>', () => {
     const { render, staticRenderFns, errors } = compile(`<list><cell></cell></list>`)
     expect(render).not.toBeUndefined()
     expect(staticRenderFns).not.toBeUndefined()
@@ -11,4 +11,37 @@ describe('append props', () => {
     expect(staticRenderFns).toMatch(strToRegExp(`attrs:{"append":"tree"}`))
     expect(errors).toEqual([])
   })
+
+  it('override append="node" on <cell>', () => {
+    const { render, staticRenderFns, errors } = compile(`<list><cell append="node"></cell></list>`)
+    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"append":"node"}`))
+    expect(errors).toEqual([])
+  })
+
+  it('add append="tree" on <header>', () => {
+    const { render, staticRenderFns, errors } = compile(`<list><header></header></list>`)
+    expect(render + staticRenderFns).toMatch(strToRegExp(`appendAsTree:true`))
+    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"append":"tree"}`))
+    expect(errors).toEqual([])
+  })
+
+  it('add append="tree" on <recycle-list>', () => {
+    const { render, staticRenderFns, errors } = compile(`<recycle-list><div></div></recycle-list>`)
+    expect(render + staticRenderFns).toMatch(strToRegExp(`appendAsTree:true`))
+    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"append":"tree"}`))
+    expect(errors).toEqual([])
+  })
+
+  it('add append="tree" on <cell-slot>', () => {
+    const { render, staticRenderFns, errors } = compile(`<list><cell-slot></cell-slot></list>`)
+    expect(render + staticRenderFns).toMatch(strToRegExp(`appendAsTree:true`))
+    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"append":"tree"}`))
+    expect(errors).toEqual([])
+  })
+
+  it('override append="node" on <cell-slot>', () => {
+    const { render, staticRenderFns, errors } = compile(`<list><cell-slot append="node"></cell-slot></list>`)
+    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"append":"node"}`))
+    expect(errors).toEqual([])
+  })
 })

From 661bfe552e16d3a7036012021ae3746cfc02710e Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Tue, 19 Dec 2017 05:16:03 +0800
Subject: [PATCH 338/911] feat(weex): partially support lifecycles of virtual
 component (#7242)

Update the `_init` and `_update` logic to partially support lifecycles.
Add test cases for testing the lifecycle hooks and data update.
---
 flow/component.js                             |  1 +
 flow/options.js                               |  2 +
 package-lock.json                             |  6 +-
 package.json                                  |  2 +-
 src/core/instance/state.js                    |  2 +-
 .../runtime/recycle-list/virtual-component.js | 68 ++++++++++++---
 src/platforms/weex/util/index.js              |  8 +-
 test/weex/cases/cases.spec.js                 | 83 +++++++++++++++----
 .../cases/recycle-list/components/counter.vue |  2 +-
 .../recycle-list/components/lifecycle.vue     | 39 +++++++++
 .../components/stateful-lifecycle.vdom.js     | 29 +++++++
 .../components/stateful-lifecycle.vue         | 21 +++++
 test/weex/runtime/framework.spec.js           |  3 +-
 13 files changed, 229 insertions(+), 37 deletions(-)
 create mode 100644 test/weex/cases/recycle-list/components/lifecycle.vue
 create mode 100644 test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js
 create mode 100644 test/weex/cases/recycle-list/components/stateful-lifecycle.vue

diff --git a/flow/component.js b/flow/component.js
index bf984cd6dc3..b873bc2450b 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -70,6 +70,7 @@ declare interface Component {
   _hasHookEvent: boolean;
   _provided: ?Object;
   _inlineComputed: ?{ [key: string]: Watcher }; // inline computed watchers for literal props
+  // _virtualComponents?: { [key: string]: Component };
 
   // private methods
 
diff --git a/flow/options.js b/flow/options.js
index 3ae6509df6f..e4c6ed1f968 100644
--- a/flow/options.js
+++ b/flow/options.js
@@ -11,6 +11,8 @@ declare type InternalComponentOptions = {
 type InjectKey = string | Symbol;
 
 declare type ComponentOptions = {
+  componentId?: string;
+
   // data
   data: Object | Function | void;
   props?: { [key: string]: PropOptions };
diff --git a/package-lock.json b/package-lock.json
index 1135b8d6693..0f3b963dd58 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9796,9 +9796,9 @@
       }
     },
     "weex-js-runtime": {
-      "version": "0.23.4",
-      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.23.4.tgz",
-      "integrity": "sha512-leBzBrpvbrKHvmwd00YjzxZAQrp6NWEbEt3jAtk5EINccxZzFhwZ8SpUmn0d5bspemFisT18eJDAavv4LgRxpw==",
+      "version": "0.23.5",
+      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.23.5.tgz",
+      "integrity": "sha512-94/bMUpCyZMsrq2codDPFatr5Ec8yKYKYNsfoshQOiQKTZY3pwqlfedtOKQNf6k7o4npEhdxDnHJwEVORtNylg==",
       "dev": true
     },
     "weex-styler": {
diff --git a/package.json b/package.json
index fe58ff26342..ecbb0fd9d38 100644
--- a/package.json
+++ b/package.json
@@ -125,7 +125,7 @@
     "typescript": "^2.6.1",
     "uglify-js": "^3.0.15",
     "webpack": "^3.10.0",
-    "weex-js-runtime": "^0.23.3",
+    "weex-js-runtime": "^0.23.5",
     "weex-styler": "^0.3.0"
   },
   "config": {
diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index e39fb2e0a5e..01e1e8720d7 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -150,7 +150,7 @@ function initData (vm: Component) {
   observe(data, true /* asRootData */)
 }
 
-function getData (data: Function, vm: Component): any {
+export function getData (data: Function, vm: Component): any {
   try {
     return data.call(vm, vm)
   } catch (e) {
diff --git a/src/platforms/weex/runtime/recycle-list/virtual-component.js b/src/platforms/weex/runtime/recycle-list/virtual-component.js
index ed370d8c9fb..e5498d26897 100644
--- a/src/platforms/weex/runtime/recycle-list/virtual-component.js
+++ b/src/platforms/weex/runtime/recycle-list/virtual-component.js
@@ -2,13 +2,14 @@
 
 // https://github.com/Hanks10100/weex-native-directive/tree/master/component
 
-import { mergeOptions } from 'core/util/index'
+import { mergeOptions, isPlainObject, noop } from 'core/util/index'
+import Watcher from 'core/observer/watcher'
 import { initProxy } from 'core/instance/proxy'
-import { initState } from 'core/instance/state'
+import { initState, getData } from 'core/instance/state'
 import { initRender } from 'core/instance/render'
 import { initEvents } from 'core/instance/events'
 import { initProvide, initInjections } from 'core/instance/inject'
-import { initLifecycle, mountComponent, callHook } from 'core/instance/lifecycle'
+import { initLifecycle, callHook } from 'core/instance/lifecycle'
 import { initInternalComponent, resolveConstructorOptions } from 'core/instance/init'
 import { registerComponentHook, updateComponentData } from '../../util/index'
 
@@ -55,8 +56,25 @@ function initVirtualComponent (options: Object = {}) {
   initProvide(vm) // resolve provide after data/props
   callHook(vm, 'created')
 
+  // send initial data to native
+  const data = vm.$options.data
+  const params = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {}
+  if (isPlainObject(params)) {
+    updateComponentData(componentId, params)
+  }
+
   registerComponentHook(componentId, 'lifecycle', 'attach', () => {
-    mountComponent(vm)
+    callHook(vm, 'beforeMount')
+
+    const updateComponent = () => {
+      vm._update(vm._vnode, false)
+    }
+    new Watcher(vm, updateComponent, noop, null, true)
+
+    vm._isMounted = true
+    callHook(vm, 'mounted')
   })
 
   registerComponentHook(componentId, 'lifecycle', 'detach', () => {
@@ -65,25 +83,53 @@ function initVirtualComponent (options: Object = {}) {
 }
 
 // override Vue.prototype._update
-function updateVirtualComponent (vnode: VNode, hydrating?: boolean) {
-  // TODO
-  updateComponentData(this.$options.componentId, {})
+function updateVirtualComponent (vnode?: VNode) {
+  const vm: Component = this
+  const componentId = vm.$options.componentId
+  if (vm._isMounted) {
+    callHook(vm, 'beforeUpdate')
+  }
+  vm._vnode = vnode
+  if (vm._isMounted && componentId) {
+    // TODO: data should be filtered and without bindings
+    const data = Object.assign({}, vm._data)
+    updateComponentData(componentId, data, () => {
+      callHook(vm, 'updated')
+    })
+  }
 }
 
 // listening on native callback
 export function resolveVirtualComponent (vnode: MountedComponentVNode): VNode {
   const BaseCtor = vnode.componentOptions.Ctor
   const VirtualComponent = BaseCtor.extend({})
+  const cid = VirtualComponent.cid
   VirtualComponent.prototype._init = initVirtualComponent
   VirtualComponent.prototype._update = updateVirtualComponent
 
   vnode.componentOptions.Ctor = BaseCtor.extend({
     beforeCreate () {
-      registerComponentHook(VirtualComponent.cid, 'lifecycle', 'create', componentId => {
+      // const vm: Component = this
+
+      // TODO: listen on all events and dispatch them to the
+      // corresponding virtual components according to the componentId.
+      // vm._virtualComponents = {}
+      const createVirtualComponent = (componentId, propsData) => {
         // create virtual component
-        const options = { componentId }
-        return new VirtualComponent(options)
-      })
+        // const subVm =
+        new VirtualComponent({
+          componentId,
+          propsData
+        })
+        // if (vm._virtualComponents) {
+        //   vm._virtualComponents[componentId] = subVm
+        // }
+      }
+
+      registerComponentHook(cid, 'lifecycle', 'create', createVirtualComponent)
+    },
+    beforeDestroy () {
+      delete this._virtualComponents
     }
   })
 }
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index cffc2ede799..77bc318c55c 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -70,13 +70,17 @@ export function registerComponentHook (
 }
 
 // Updates the state of the component to weex native render engine.
-export function updateComponentData (componentId: string, newData: Object) {
+export function updateComponentData (
+  componentId: string,
+  newData: Object | void,
+  callback?: Function
+) {
   if (!document || !document.taskCenter) {
     warn(`Can't find available "document" or "taskCenter".`)
     return
   }
   if (typeof document.taskCenter.updateData === 'function') {
-    return document.taskCenter.updateData(componentId, newData)
+    return document.taskCenter.updateData(componentId, newData, callback)
   }
   warn(`Failed to update component data (${componentId}).`)
 }
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index 532544cdd17..e5825ec7435 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -137,29 +137,45 @@ describe('Usage', () => {
         const id = String(Date.now() * Math.random())
         const instance = createInstance(id, code)
         expect(tasks.length).toEqual(3)
-        tasks.length = 0
-        instance.$triggerHook(2, 'create', ['component-1'])
-        instance.$triggerHook(2, 'create', ['component-2'])
-        instance.$triggerHook('component-1', 'attach')
-        instance.$triggerHook('component-2', 'attach')
-        expect(tasks.length).toEqual(2)
-        expect(tasks[0].method).toEqual('updateComponentData')
-        // expect(tasks[0].args).toEqual([{ count: 42 }])
-        expect(tasks[1].method).toEqual('updateComponentData')
-        // expect(tasks[1].args).toEqual([{ count: 42 }])
         setTimeout(() => {
+          // check the render results
           const target = readObject('recycle-list/components/stateful.vdom.js')
           expect(getRoot(instance)).toEqual(target)
-          const event = getEvents(instance)[0]
           tasks.length = 0
-          fireEvent(instance, event.ref, event.type, {})
+
+          // trigger component hooks
+          instance.$triggerHook(
+            2, // cid of the virtual component template
+            'create', // lifecycle hook name
+
+            // arguments for the callback
+            [
+              'x-1', // componentId of the virtual component
+              { start: 3 } // propsData of the virtual component
+            ]
+          )
+          instance.$triggerHook(2, 'create', ['x-2', { start: 11 }])
+
+          // the state (_data) of the virtual component should be sent to native
+          expect(tasks.length).toEqual(2)
+          expect(tasks[0].method).toEqual('updateComponentData')
+          expect(tasks[0].args).toEqual(['x-1', { count: 6 }, ''])
+          expect(tasks[1].method).toEqual('updateComponentData')
+          expect(tasks[1].args).toEqual(['x-2', { count: 22 }, ''])
+
+          instance.$triggerHook('x-1', 'attach')
+          instance.$triggerHook('x-2', 'attach')
+          tasks.length = 0
+
+          // simulate a click event
+          // the event will be caught by the virtual component template and
+          // should be dispatched to virtual component according to the componentId
+          const event = getEvents(instance)[0]
+          fireEvent(instance, event.ref, 'click', { componentId: 'x-1' })
           setTimeout(() => {
             // expect(tasks.length).toEqual(1)
-            // expect(tasks[0]).toEqual({
-            //   module: 'dom',
-            //   method: 'updateComponentData',
-            //   args: [{ count: 43 }]
-            // })
+            // expect(tasks[0].method).toEqual('updateComponentData')
+            // expect(tasks[0].args).toEqual([{ count: 7 }])
             instance.$destroy()
             resetTaskHook()
             done()
@@ -168,6 +184,39 @@ describe('Usage', () => {
       }).catch(done.fail)
     })
 
+    // it('component lifecycle', done => {
+    //   global.__lifecycles = []
+    //   compileWithDeps('recycle-list/components/stateful-lifecycle.vue', [{
+    //     name: 'lifecycle',
+    //     path: 'recycle-list/components/lifecycle.vue'
+    //   }]).then(code => {
+    //     const id = String(Date.now() * Math.random())
+    //     const instance = createInstance(id, code)
+    //     setTimeout(() => {
+    //       const target = readObject('recycle-list/components/stateful-lifecycle.vdom.js')
+    //       expect(getRoot(instance)).toEqual(target)
+
+    //       instance.$triggerHook(2, 'create', ['y-1'])
+    //       instance.$triggerHook('y-1', 'attach')
+    //       instance.$triggerHook('y-1', 'detach')
+    //       expect(global.__lifecycles).toEqual([
+    //         'beforeCreate undefined',
+    //         'created 0',
+    //         'beforeMount 1',
+    //         'mounted 1',
+    //         'beforeUpdate 2',
+    //         'updated 2',
+    //         'beforeDestroy 2',
+    //         'destroyed 2'
+    //       ])
+
+    //       delete global.__lifecycles
+    //       instance.$destroy()
+    //       done()
+    //     }, 50)
+    //   }).catch(done.fail)
+    // })
+
     it('stateful component with v-model', done => {
       compileWithDeps('recycle-list/components/stateful-v-model.vue', [{
         name: 'editor',
diff --git a/test/weex/cases/recycle-list/components/counter.vue b/test/weex/cases/recycle-list/components/counter.vue
index c0298dee6eb..79b8189b030 100644
--- a/test/weex/cases/recycle-list/components/counter.vue
+++ b/test/weex/cases/recycle-list/components/counter.vue
@@ -10,7 +10,7 @@
     props: ['start'],
     data () {
       return {
-        count: parseInt(this.start, 10) || 42
+        count: parseInt(this.start, 10) * 2 || 42
       }
     },
     methods: {
diff --git a/test/weex/cases/recycle-list/components/lifecycle.vue b/test/weex/cases/recycle-list/components/lifecycle.vue
new file mode 100644
index 00000000000..03ee65ada5c
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/lifecycle.vue
@@ -0,0 +1,39 @@
+<template recyclable="true">
+  <div>
+    <text>{{number}}</text>
+  </div>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return { number: 0 }
+    },
+    beforeCreate () {
+      try { __lifecycles.push('beforeCreate ' + this.number) } catch (e) {}
+    },
+    created () {
+      try { __lifecycles.push('created ' + this.number) } catch (e) {}
+      this.number++
+    },
+    beforeMount () {
+      try { __lifecycles.push('beforeMount ' + this.number) } catch (e) {}
+    },
+    mounted () {
+      try { __lifecycles.push('mounted ' + this.number) } catch (e) {}
+      this.number++
+    },
+    beforeUpdate () {
+      try { __lifecycles.push('beforeUpdate ' + this.number) } catch (e) {}
+    },
+    updated () {
+      try { __lifecycles.push('updated ' + this.number) } catch (e) {}
+    },
+    beforeDestroy () {
+      try { __lifecycles.push('beforeDestroy ' + this.number) } catch (e) {}
+    },
+    destroyed () {
+      try { __lifecycles.push('destroyed ' + this.number) } catch (e) {}
+    }
+  }
+</script>
diff --git a/test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js b/test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js
new file mode 100644
index 00000000000..5264259f14c
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js
@@ -0,0 +1,29 @@
+({
+  type: 'recycle-list',
+  attr: {
+    append: 'tree',
+    listData: [
+      { type: 'X' },
+      { type: 'X' }
+    ],
+    templateKey: 'type',
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { append: 'tree', templateType: 'X' },
+    children: [{
+      type: 'div',
+      attr: {
+        '@isComponentRoot': true,
+        '@componentProps': {}
+      },
+      children: [{
+        type: 'text',
+        attr: {
+          value: { '@binding': 'number' }
+        }
+      }]
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/components/stateful-lifecycle.vue b/test/weex/cases/recycle-list/components/stateful-lifecycle.vue
new file mode 100644
index 00000000000..c01a96b6d13
--- /dev/null
+++ b/test/weex/cases/recycle-list/components/stateful-lifecycle.vue
@@ -0,0 +1,21 @@
+<template>
+  <recycle-list :list-data="longList" template-key="type" alias="item">
+    <cell-slot template-type="X">
+      <lifecycle></lifecycle>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  // require('./lifecycle.vue')
+  module.exports = {
+    data () {
+      return {
+        longList: [
+          { type: 'X' },
+          { type: 'X' }
+        ]
+      }
+    }
+  }
+</script>
diff --git a/test/weex/runtime/framework.spec.js b/test/weex/runtime/framework.spec.js
index 449d8772608..5a8daed4615 100644
--- a/test/weex/runtime/framework.spec.js
+++ b/test/weex/runtime/framework.spec.js
@@ -36,7 +36,7 @@ describe('framework APIs', () => {
       type: 'div',
       children: [{
         type: 'text',
-        attr: { value: '{"bundleUrl":"http://example.com/","a":1,"b":2,"env":{}}' }
+        attr: { value: '{"bundleUrl":"http://example.com/","a":1,"b":2,"env":{},"bundleType":"Vue"}' }
       }]
     })
   })
@@ -170,6 +170,7 @@ describe('framework APIs', () => {
     `, { bundleUrl: 'http://whatever.com/x.js' })
     expect(JSON.parse(getRoot(instance).children[0].attr.value)).toEqual({
       bundleUrl: 'http://whatever.com/x.js',
+      bundleType: 'Vue',
       env: {
         weexVersion: '0.10.0',
         platform: 'Node.js'

From 1dd6b6f046c3093950e599ccc6bbe7a393b8a494 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 18 Dec 2017 21:51:38 -0500
Subject: [PATCH 339/911] refactor: adjust weex branch coverage and build for
 merging into dev

---
 src/compiler/codegen/events.js              |  3 ++
 src/compiler/codegen/index.js               |  8 +++-
 src/core/vdom/create-component.js           |  1 +
 src/core/vdom/helpers/update-listeners.js   |  1 +
 src/platforms/web/compiler/modules/model.js |  6 +--
 src/platforms/weex/compiler/index.js        |  2 +-
 src/platforms/weex/runtime/index.js         |  2 +-
 src/platforms/weex/util/element.js          | 52 +++++++++++++++++++++
 src/platforms/weex/util/index.js            | 46 ------------------
 test/unit/karma.cover.config.js             |  3 +-
 10 files changed, 69 insertions(+), 55 deletions(-)
 create mode 100644 src/platforms/weex/util/element.js

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 5e08baad40d..2b53c2333fd 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -47,6 +47,7 @@ export function genHandlers (
 }
 
 // Generate handler code with binding params on Weex
+/* istanbul ignore next */
 function genWeexHandler (params: Array<any>, handlerCode: string) {
   let innerHandlerCode = handlerCode
   const exps = params.filter(exp => simplePathRE.test(exp) && exp !== '$event')
@@ -82,6 +83,7 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
+    /* istanbul ignore if */
     if (__WEEX__ && handler.params) {
       return genWeexHandler(handler.params, handler.value)
     }
@@ -121,6 +123,7 @@ function genHandler (
       : isFunctionExpression
         ? `(${handler.value})($event)`
         : handler.value
+    /* istanbul ignore if */
     if (__WEEX__ && handler.params) {
       return genWeexHandler(handler.params, code + handlerCode)
     }
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 59b14ea7917..1c912c4d96f 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -487,11 +487,17 @@ function genProps (props: Array<{ name: string, value: any }>): string {
   let res = ''
   for (let i = 0; i < props.length; i++) {
     const prop = props[i]
-    res += `"${prop.name}":${generateValue(prop.value)},`
+    /* istanbul ignore if */
+    if (__WEEX__) {
+      res += `"${prop.name}":${generateValue(prop.value)},`
+    } else {
+      res += `"${prop.name}":${transformSpecialNewlines(prop.value)},`
+    }
   }
   return res.slice(0, -1)
 }
 
+/* istanbul ignore next */
 function generateValue (value) {
   if (typeof value === 'string') {
     return transformSpecialNewlines(value)
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 21e732f2312..60809093a14 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -200,6 +200,7 @@ export function createComponent (
   // Weex specific: invoke recycle-list optimized @render function for
   // extracting cell-slot template.
   // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   if (__WEEX__ && isRecyclableComponent(vnode)) {
     return renderRecyclableComponentTemplate(vnode)
   }
diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index ca1c7c4c4c7..11c5a2cd2f8 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -54,6 +54,7 @@ export function updateListeners (
     def = cur = on[name]
     old = oldOn[name]
     event = normalizeEvent(name)
+    /* istanbul ignore if */
     if (__WEEX__ && isPlainObject(def)) {
       cur = def.handler
       event.params = def.params
diff --git a/src/platforms/web/compiler/modules/model.js b/src/platforms/web/compiler/modules/model.js
index 5e882d72545..2ef37e836d3 100644
--- a/src/platforms/web/compiler/modules/model.js
+++ b/src/platforms/web/compiler/modules/model.js
@@ -11,6 +11,7 @@
  */
 
 import {
+  addRawAttr,
   getBindingAttr,
   getAndRemoveAttr
 } from 'compiler/helpers'
@@ -77,11 +78,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value
-  el.attrsList.push({ name, value })
-}
-
 export default {
   preTransformNode
 }
diff --git a/src/platforms/weex/compiler/index.js b/src/platforms/weex/compiler/index.js
index 127de6f1816..94f350b825d 100644
--- a/src/platforms/weex/compiler/index.js
+++ b/src/platforms/weex/compiler/index.js
@@ -12,7 +12,7 @@ import {
   isReservedTag,
   canBeLeftOpenTag,
   getTagNamespace
-} from '../util/index'
+} from '../util/element'
 
 export const baseOptions: WeexCompilerOptions = {
   modules,
diff --git a/src/platforms/weex/runtime/index.js b/src/platforms/weex/runtime/index.js
index 812dde9ee22..b8e09305be6 100755
--- a/src/platforms/weex/runtime/index.js
+++ b/src/platforms/weex/runtime/index.js
@@ -12,7 +12,7 @@ import {
   isReservedTag,
   isRuntimeComponent,
   isUnknownElement
-} from 'weex/util/index'
+} from 'weex/util/element'
 
 // install platform specific utils
 Vue.config.mustUseProp = mustUseProp
diff --git a/src/platforms/weex/util/element.js b/src/platforms/weex/util/element.js
new file mode 100644
index 00000000000..97e97febbe5
--- /dev/null
+++ b/src/platforms/weex/util/element.js
@@ -0,0 +1,52 @@
+/* @flow */
+
+// These util functions are split into its own file because Rollup cannot drop
+// makeMap() due to potential side effects, so these variables end up
+// bloating the web builds.
+
+import { makeMap } from 'shared/util'
+
+export const isReservedTag = makeMap(
+  'template,script,style,element,content,slot,link,meta,svg,view,' +
+  'a,div,img,image,text,span,input,switch,textarea,spinner,select,' +
+  'slider,slider-neighbor,indicator,canvas,' +
+  'list,cell,header,loading,loading-indicator,refresh,scrollable,scroller,' +
+  'video,web,embed,tabbar,tabheader,datepicker,timepicker,marquee,countdown',
+  true
+)
+
+// Elements that you can, intentionally, leave open (and which close themselves)
+// more flexible than web
+export const canBeLeftOpenTag = makeMap(
+  'web,spinner,switch,video,textarea,canvas,' +
+  'indicator,marquee,countdown',
+  true
+)
+
+export const isRuntimeComponent = makeMap(
+  'richtext,transition,transition-group',
+  true
+)
+
+export const isUnaryTag = makeMap(
+  'embed,img,image,input,link,meta',
+  true
+)
+
+export function mustUseProp (tag: string, type: ?string, name: string): boolean {
+  return false
+}
+
+export function getTagNamespace (tag?: string): string | void { }
+
+export function isUnknownElement (tag?: string): boolean {
+  return false
+}
+
+export function query (el: string | Element, document: Object) {
+  // document is injected by weex factory wrapper
+  const placeholder = document.createComment('root')
+  placeholder.hasAttribute = placeholder.removeAttribute = function () {} // hack for patch
+  document.documentElement.appendChild(placeholder)
+  return placeholder
+}
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index 77bc318c55c..6d90307fbb8 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -1,56 +1,10 @@
 /* @flow */
 declare var document: Object;
 
-import { makeMap } from 'shared/util'
 import { warn } from 'core/util/index'
 
 export const RECYCLE_LIST_MARKER = '@inRecycleList'
 
-export const isReservedTag = makeMap(
-  'template,script,style,element,content,slot,link,meta,svg,view,' +
-  'a,div,img,image,text,span,input,switch,textarea,spinner,select,' +
-  'slider,slider-neighbor,indicator,canvas,' +
-  'list,cell,header,loading,loading-indicator,refresh,scrollable,scroller,' +
-  'video,web,embed,tabbar,tabheader,datepicker,timepicker,marquee,countdown',
-  true
-)
-
-// Elements that you can, intentionally, leave open (and which close themselves)
-// more flexible than web
-export const canBeLeftOpenTag = makeMap(
-  'web,spinner,switch,video,textarea,canvas,' +
-  'indicator,marquee,countdown',
-  true
-)
-
-export const isRuntimeComponent = makeMap(
-  'richtext,transition,transition-group',
-  true
-)
-
-export const isUnaryTag = makeMap(
-  'embed,img,image,input,link,meta',
-  true
-)
-
-export function mustUseProp (tag: string, type: ?string, name: string): boolean {
-  return false
-}
-
-export function getTagNamespace (tag?: string): string | void { }
-
-export function isUnknownElement (tag?: string): boolean {
-  return false
-}
-
-export function query (el: string | Element, document: Object) {
-  // document is injected by weex factory wrapper
-  const placeholder = document.createComment('root')
-  placeholder.hasAttribute = placeholder.removeAttribute = function () {} // hack for patch
-  document.documentElement.appendChild(placeholder)
-  return placeholder
-}
-
 // Register the component hook to weex native render engine.
 // The hook will be triggered by native, not javascript.
 export function registerComponentHook (
diff --git a/test/unit/karma.cover.config.js b/test/unit/karma.cover.config.js
index 172225bc7ed..360252a6d54 100644
--- a/test/unit/karma.cover.config.js
+++ b/test/unit/karma.cover.config.js
@@ -24,7 +24,8 @@ module.exports = function (config) {
         'test/',
         'src/compiler/parser/html-parser.js',
         'src/core/instance/proxy.js',
-        'src/sfc/deindent.js'
+        'src/sfc/deindent.js',
+        'src/platforms/weex/'
       ]
     }]]
   }

From 2e0f6d5d817957ab23819f90b264243d87ef968c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 09:26:47 -0500
Subject: [PATCH 340/911] refactor: reuse v-for parsing logic

---
 src/compiler/parser/index.js                  | 42 +++++++++++--------
 .../compiler/modules/recycle-list/v-for.js    | 42 +++++++++----------
 2 files changed, 46 insertions(+), 38 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 0261934f83c..82df3d3582b 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -4,8 +4,8 @@ import he from 'he'
 import { parseHTML } from './html-parser'
 import { parseText } from './text-parser'
 import { parseFilters } from './filter-parser'
-import { cached, no, camelize } from 'shared/util'
 import { genAssignmentCode } from '../directives/model'
+import { extend, cached, no, camelize } from 'shared/util'
 import { isIE, isEdge, isServerRendering } from 'core/util/env'
 
 import {
@@ -23,7 +23,7 @@ export const onRE = /^@|^v-on:/
 export const dirRE = /^v-|^@|^:/
 export const forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
-export const stripParensRE = /^\(|\)$/g
+const stripParensRE = /^\(|\)$/g
 
 const argRE = /:(.*)$/
 export const bindRE = /^:|^v-bind:/
@@ -355,26 +355,34 @@ function processRef (el) {
 export function processFor (el: ASTElement) {
   let exp
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    const inMatch = exp.match(forAliasRE)
-    if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn(
+    const res = parseFor(exp)
+    if (res) {
+      extend(el, res)
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn(
         `Invalid v-for expression: ${exp}`
       )
-      return
     }
-    el.for = inMatch[2].trim()
-    const alias = inMatch[1].trim().replace(stripParensRE, '')
-    const iteratorMatch = alias.match(forIteratorRE)
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '')
-      el.iterator1 = iteratorMatch[1].trim()
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim()
-      }
-    } else {
-      el.alias = alias
+  }
+}
+
+export function parseFor (exp: string): ?Object {
+  const inMatch = exp.match(forAliasRE)
+  if (!inMatch) return
+  const res = {}
+  res.for = inMatch[2].trim()
+  const alias = inMatch[1].trim().replace(stripParensRE, '')
+  const iteratorMatch = alias.match(forIteratorRE)
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '')
+    res.iterator1 = iteratorMatch[1].trim()
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim()
     }
+  } else {
+    res.alias = alias
   }
+  return res
 }
 
 function processIf (el) {
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-for.js b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
index 3433288f675..9f09e4b4bd7 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-for.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-for.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { forAliasRE, forIteratorRE, stripParensRE } from 'compiler/parser/index'
+import { parseFor } from 'compiler/parser/index'
 import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
 
 export function preTransformVFor (el: ASTElement, options: WeexCompilerOptions) {
@@ -8,26 +8,26 @@ export function preTransformVFor (el: ASTElement, options: WeexCompilerOptions)
   if (!exp) {
     return
   }
-  const inMatch = exp.match(forAliasRE)
-  if (inMatch) {
-    const alias = inMatch[1].trim().replace(stripParensRE, '')
-    const desc: Object = {
-      '@expression': inMatch[2].trim(),
-      '@alias': alias
-    }
-    const iteratorMatch = alias.match(forIteratorRE)
-    if (iteratorMatch) {
-      desc['@alias'] = alias.replace(forIteratorRE, '')
-      if (iteratorMatch[2]) {
-        desc['@key'] = iteratorMatch[1].trim()
-        desc['@index'] = iteratorMatch[2].trim()
-      } else {
-        desc['@index'] = iteratorMatch[1].trim()
-      }
+
+  const res = parseFor(exp)
+  if (!res) {
+    if (process.env.NODE_ENV !== 'production' && options.warn) {
+      options.warn(`Invalid v-for expression: ${exp}`)
     }
-    delete el.attrsMap['v-for']
-    addRawAttr(el, '[[repeat]]', desc)
-  } else if (process.env.NODE_ENV !== 'production' && options.warn) {
-    options.warn(`Invalid v-for expression: ${exp}`)
+    return
   }
+
+  const desc: Object = {
+    '@expression': res.for,
+    '@alias': res.alias
+  }
+  if (res.iterator2) {
+    desc['@key'] = res.iterator1
+    desc['@index'] = res.iterator2
+  } else {
+    desc['@index'] = res.iterator1
+  }
+
+  delete el.attrsMap['v-for']
+  addRawAttr(el, '[[repeat]]', desc)
 }

From 01c07503bf6af902dde06fafa8a0008ee3e303aa Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 09:29:48 -0500
Subject: [PATCH 341/911] revert: revert prop object validation

close #7279
---
 src/core/util/options.js                 | 23 -----------------------
 test/unit/features/options/props.spec.js | 17 -----------------
 2 files changed, 40 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index ff58cd30834..5f0d10d3361 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -292,9 +292,6 @@ function normalizeProps (options: Object, vm: ?Component) {
     for (const key in props) {
       val = props[key]
       name = camelize(key)
-      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm)
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val }
@@ -309,26 +306,6 @@ function normalizeProps (options: Object, vm: ?Component) {
   options.props = res
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-const propOptionsRE = /^(type|default|required|validator)$/
-
-function validatePropObject (
-  propName: string,
-  prop: Object,
-  vm: ?Component
-) {
-  for (const key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        `Invalid key "${key}" in validation rules object for prop "${propName}".`,
-        vm
-      )
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index d7db3c1fa1f..38a0917e74a 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -513,23 +513,6 @@ describe('Options props', () => {
     })
   })
 
-  it('should warn about misspelled keys in prop validation object', () => {
-    new Vue({
-      template: '<test></test>',
-      components: {
-        test: {
-          template: '<div></div>',
-          props: {
-            value: { reqquired: true },
-            count: { deafult: 1 }
-          }
-        }
-      }
-    }).$mount()
-    expect(`Invalid key "reqquired" in validation rules object for prop "value".`).toHaveBeenWarned()
-    expect(`Invalid key "deafult" in validation rules object for prop "count".`).toHaveBeenWarned()
-  })
-
   it('should not trigger re-render on non-changed inline literals', done => {
     const updated = jasmine.createSpy('updated')
     const vm = new Vue({

From c0d516c283aa1a1c238b6eb8b8e55f64770d27e8 Mon Sep 17 00:00:00 2001
From: Wenlu Wang <805037171@163.com>
Date: Tue, 19 Dec 2017 22:34:35 +0800
Subject: [PATCH 342/911] feat(types): extract VueConfiguration type for easy
 expansion (#7273) (#7274)

fix #7273
---
 types/vue.d.ts | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/types/vue.d.ts b/types/vue.d.ts
index e1431453dd9..045644e0a94 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -64,6 +64,18 @@ export interface Vue {
 export type CombinedVueInstance<Instance extends Vue, Data, Methods, Computed, Props> =  Data & Methods & Computed & Props & Instance;
 export type ExtendedVue<Instance extends Vue, Data, Methods, Computed, Props> = VueConstructor<CombinedVueInstance<Instance, Data, Methods, Computed, Props> & Vue>;
 
+export interface VueConfiguration {
+  silent: boolean;
+  optionMergeStrategies: any;
+  devtools: boolean;
+  productionTip: boolean;
+  performance: boolean;
+  errorHandler(err: Error, vm: Vue, info: string): void;
+  warnHandler(msg: string, vm: Vue, trace: string): void;
+  ignoredElements: (string | RegExp)[];
+  keyCodes: { [key: string]: number | number[] };
+}
+
 export interface VueConstructor<V extends Vue = Vue> {
   new <Data = object, Methods = object, Computed = object, PropNames extends string = never>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): CombinedVueInstance<V, Data, Methods, Computed, Record<PropNames, any>>;
   // ideally, the return type should just contains Props, not Record<keyof Props, any>. But TS requires Base constructors must all have the same return type.
@@ -106,17 +118,7 @@ export interface VueConstructor<V extends Vue = Vue> {
     staticRenderFns: (() => VNode)[];
   };
 
-  config: {
-    silent: boolean;
-    optionMergeStrategies: any;
-    devtools: boolean;
-    productionTip: boolean;
-    performance: boolean;
-    errorHandler(err: Error, vm: Vue, info: string): void;
-    warnHandler(msg: string, vm: Vue, trace: string): void;
-    ignoredElements: (string | RegExp)[];
-    keyCodes: { [key: string]: number | number[] };
-  }
+  config: VueConfiguration;
 }
 
 export const Vue: VueConstructor;

From bacb911f7df09ff4868b4c848a6d7778872dff5c Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Tue, 19 Dec 2017 22:35:50 +0800
Subject: [PATCH 343/911] fix(warning): allow symbol as vdom key (#7271)

---
 src/core/vdom/patch.js                        | 2 +-
 src/shared/util.js                            | 2 ++
 test/unit/modules/vdom/create-element.spec.js | 9 +++++++++
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index b5296db3c9d..00c67a5b108 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -270,7 +270,7 @@ export function createPatchFunction (backend) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true)
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text))
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)))
     }
   }
 
diff --git a/src/shared/util.js b/src/shared/util.js
index fe1c025e494..a0bc957ee93 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -27,6 +27,8 @@ export function isPrimitive (value: any): boolean %checks {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
diff --git a/test/unit/modules/vdom/create-element.spec.js b/test/unit/modules/vdom/create-element.spec.js
index 3bec065f312..f2fddcf6d14 100644
--- a/test/unit/modules/vdom/create-element.spec.js
+++ b/test/unit/modules/vdom/create-element.spec.js
@@ -215,6 +215,15 @@ describe('create-element', () => {
     expect('Avoid using non-primitive value as key').not.toHaveBeenWarned()
   })
 
+  it('doesn\'t warn symbol key', () => {
+    new Vue({
+      render (h) {
+        return h('div', { key: Symbol('symbol') })
+      }
+    }).$mount()
+    expect('Avoid using non-primitive value as key').not.toHaveBeenWarned()
+  })
+
   it('nested child elements should be updated correctly', done => {
     const vm = new Vue({
       data: { n: 1 },

From bc719405c084afb5dd4168413d880a4b801e234f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 09:54:13 -0500
Subject: [PATCH 344/911] build: build 2.5.12

---
 dist/vue.common.js                          | 248 ++++---
 dist/vue.esm.js                             | 248 ++++---
 dist/vue.js                                 | 242 ++++---
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  | 114 +++-
 dist/vue.runtime.esm.js                     | 114 +++-
 dist/vue.runtime.js                         | 108 ++-
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 687 ++++++++++++++++---
 packages/vue-server-renderer/build.js       | 695 +++++++++++++++++---
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   | 137 ++--
 packages/vue-template-compiler/build.js     | 137 ++--
 packages/vue-template-compiler/package.json |   2 +-
 packages/weex-template-compiler/build.js    | 254 ++++---
 packages/weex-vue-framework/factory.js      | 465 ++++++++++---
 packages/weex-vue-framework/index.js        |  14 +-
 17 files changed, 2683 insertions(+), 792 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 6e89ce9a356..37ac266cde8 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -34,6 +34,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -1357,9 +1359,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1374,31 +1373,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1411,7 +1391,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1553,7 +1533,11 @@ function validateProp (
     observe(value);
     observerState.shouldConvert = prevShouldConvert;
   }
-  if (process.env.NODE_ENV !== 'production') {
+  if (
+    process.env.NODE_ENV !== 'production' &&
+    // skip validation for weex recycle-list child component props
+    !(false && isObject(value) && ('@binding' in value))
+  ) {
     assertProp(prop, key, value, vm, absent);
   }
   return value
@@ -2033,11 +2017,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2047,7 +2032,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -3294,6 +3279,7 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
+  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3930,6 +3916,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3946,6 +3958,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -4045,6 +4058,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -4210,6 +4242,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
@@ -4320,11 +4357,13 @@ function _createElement (
   if (process.env.NODE_ENV !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -5002,7 +5041,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.11';
+Vue$3.version = '2.5.12';
 
 /*  */
 
@@ -5577,7 +5616,7 @@ function createPatchFunction (backend) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
   }
 
@@ -6446,10 +6485,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -6461,6 +6508,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -6533,6 +6581,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -8445,6 +8495,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -8454,23 +8506,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -8479,8 +8538,8 @@ function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
   if (process.env.NODE_ENV !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
       warn(
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
@@ -8523,8 +8582,8 @@ function transformNode$1 (el, options) {
   if (staticStyle) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
         warn(
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
@@ -8913,16 +8972,20 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$2;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -8950,9 +9013,11 @@ function parse (
   options
 ) {
   warn$2 = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -8976,7 +9041,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -8984,6 +9049,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -9096,11 +9165,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -9114,7 +9179,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -9146,11 +9211,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -9231,26 +9297,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn$2(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn$2(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim().replace(stripParensRE, '');
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '');
-      el.iterator1 = iteratorMatch[1].trim();
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -9412,6 +9486,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -9438,8 +9521,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn$2(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -9608,11 +9691,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
 var model$2 = {
   preTransformNode: preTransformNode
 };
@@ -9851,9 +9929,11 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -9889,6 +9969,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10366,7 +10447,10 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
@@ -10644,7 +10728,9 @@ var createCompiler = createCompilerCreator(function baseCompile (
   options
 ) {
   var ast = parse(template.trim(), options);
-  optimize(ast, options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
   var code = generate(ast, options);
   return {
     ast: ast,
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index f31b7a22787..5178d8de7ed 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -32,6 +32,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -1355,9 +1357,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1372,31 +1371,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1409,7 +1389,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1551,7 +1531,11 @@ function validateProp (
     observe(value);
     observerState.shouldConvert = prevShouldConvert;
   }
-  if (process.env.NODE_ENV !== 'production') {
+  if (
+    process.env.NODE_ENV !== 'production' &&
+    // skip validation for weex recycle-list child component props
+    !(false && isObject(value) && ('@binding' in value))
+  ) {
     assertProp(prop, key, value, vm, absent);
   }
   return value
@@ -2031,11 +2015,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2045,7 +2030,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -3292,6 +3277,7 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
+  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3928,6 +3914,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3944,6 +3956,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -4043,6 +4056,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -4208,6 +4240,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
@@ -4318,11 +4355,13 @@ function _createElement (
   if (process.env.NODE_ENV !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -5000,7 +5039,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.11';
+Vue$3.version = '2.5.12';
 
 /*  */
 
@@ -5575,7 +5614,7 @@ function createPatchFunction (backend) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
   }
 
@@ -6444,10 +6483,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -6459,6 +6506,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -6531,6 +6579,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -8443,6 +8493,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -8452,23 +8504,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -8477,8 +8536,8 @@ function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
   if (process.env.NODE_ENV !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
       warn(
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
@@ -8521,8 +8580,8 @@ function transformNode$1 (el, options) {
   if (staticStyle) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
         warn(
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
@@ -8911,16 +8970,20 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$2;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -8948,9 +9011,11 @@ function parse (
   options
 ) {
   warn$2 = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -8974,7 +9039,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -8982,6 +9047,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -9094,11 +9163,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -9112,7 +9177,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -9144,11 +9209,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -9229,26 +9295,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn$2(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn$2(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim().replace(stripParensRE, '');
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '');
-      el.iterator1 = iteratorMatch[1].trim();
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -9410,6 +9484,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -9436,8 +9519,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn$2(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -9606,11 +9689,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
 var model$2 = {
   preTransformNode: preTransformNode
 };
@@ -9849,9 +9927,11 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -9887,6 +9967,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10364,7 +10445,10 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
@@ -10642,7 +10726,9 @@ var createCompiler = createCompilerCreator(function baseCompile (
   options
 ) {
   var ast = parse(template.trim(), options);
-  optimize(ast, options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
   var code = generate(ast, options);
   return {
     ast: ast,
diff --git a/dist/vue.js b/dist/vue.js
index a97d7c604c0..aab53519ac3 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -38,6 +38,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -1361,9 +1363,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if ("development" !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1378,31 +1377,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1415,7 +1395,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if ("development" !== 'production' && inject) {
+  } else {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -2037,11 +2017,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2051,7 +2032,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -3294,6 +3275,7 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
+  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3926,6 +3908,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3942,6 +3950,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -4041,6 +4050,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -4206,6 +4234,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
@@ -4316,11 +4349,13 @@ function _createElement (
   if ("development" !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -4991,7 +5026,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.11';
+Vue$3.version = '2.5.12';
 
 /*  */
 
@@ -5566,7 +5601,7 @@ function createPatchFunction (backend) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
   }
 
@@ -6435,10 +6470,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -6450,6 +6493,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -6522,6 +6566,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -8434,6 +8480,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -8443,23 +8491,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -8468,8 +8523,8 @@ function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
   if ("development" !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
       warn(
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
@@ -8512,8 +8567,8 @@ function transformNode$1 (el, options) {
   if (staticStyle) {
     /* istanbul ignore if */
     {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
         warn(
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
@@ -8902,16 +8957,20 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$2;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -8939,9 +8998,11 @@ function parse (
   options
 ) {
   warn$2 = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -8965,7 +9026,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -8973,6 +9034,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -9085,11 +9150,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -9103,7 +9164,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -9135,11 +9196,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -9220,26 +9282,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      "development" !== 'production' && warn$2(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else {
+      warn$2(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim().replace(stripParensRE, '');
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '');
-      el.iterator1 = iteratorMatch[1].trim();
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -9401,6 +9471,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -9427,8 +9506,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn$2(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -9597,11 +9676,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
 var model$2 = {
   preTransformNode: preTransformNode
 };
@@ -9840,9 +9914,11 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -9878,6 +9954,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10355,7 +10432,10 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
@@ -10633,7 +10713,9 @@ var createCompiler = createCompilerCreator(function baseCompile (
   options
 ) {
   var ast = parse(template.trim(), options);
-  optimize(ast, options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
   var code = generate(ast, options);
   return {
     ast: ast,
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 4eb55b799b5..ae9503cb0e0 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function o(t){return"[object Object]"===Nn.call(t)}function a(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function s(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function c(t){var e=parseFloat(t);return isNaN(e)?t:e}function u(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function l(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function f(t,e){return Mn.call(t,e)}function d(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}function p(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n}function v(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function h(t,e){for(var n in e)t[n]=e[n];return t}function m(t){for(var e={},n=0;n<t.length;n++)t[n]&&h(e,t[n]);return e}function y(t,e,n){}function g(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var o=Array.isArray(t),a=Array.isArray(e);if(o&&a)return t.length===e.length&&t.every(function(t,n){return g(t,e[n])});if(o||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return g(t[n],e[n])})}catch(t){return!1}}function _(t,e){for(var n=0;n<t.length;n++)if(g(t[n],e))return n;return-1}function b(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}function $(t){var e=(t+"").charCodeAt(0);return 36===e||95===e}function C(t,e,n,r){Object.defineProperty(t,e,{value:n,enumerable:!!r,writable:!0,configurable:!0})}function w(t){return"function"==typeof t&&/native code/.test(t.toString())}function x(t){return new mr(void 0,void 0,void 0,String(t))}function k(t,e){var n=t.componentOptions,r=new mr(t.tag,t.data,t.children,t.text,t.elm,t.context,n,t.asyncFactory);return r.ns=t.ns,r.isStatic=t.isStatic,r.key=t.key,r.isComment=t.isComment,r.fnContext=t.fnContext,r.fnOptions=t.fnOptions,r.fnScopeId=t.fnScopeId,r.isCloned=!0,e&&(t.children&&(r.children=A(t.children,!0)),n&&n.children&&(n.children=A(n.children,!0))),r}function A(t,e){for(var n=t.length,r=new Array(n),i=0;i<n;i++)r[i]=k(t[i],e);return r}function O(t,e,n){t.__proto__=e}function S(t,e,n){for(var r=0,i=n.length;r<i;r++){var o=n[r];C(t,o,e[o])}}function T(t,e){if(i(t)&&!(t instanceof mr)){var n;return f(t,"__ob__")&&t.__ob__ instanceof 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 6462e3d01eb..d4b24fd78db 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -34,6 +34,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -1353,9 +1355,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1370,31 +1369,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1407,7 +1387,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1549,7 +1529,11 @@ function validateProp (
     observe(value);
     observerState.shouldConvert = prevShouldConvert;
   }
-  if (process.env.NODE_ENV !== 'production') {
+  if (
+    process.env.NODE_ENV !== 'production' &&
+    // skip validation for weex recycle-list child component props
+    !(false && isObject(value) && ('@binding' in value))
+  ) {
     assertProp(prop, key, value, vm, absent);
   }
   return value
@@ -2029,11 +2013,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2043,7 +2028,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -3290,6 +3275,7 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
+  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3926,6 +3912,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3942,6 +3954,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -4041,6 +4054,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -4206,6 +4238,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
@@ -4316,11 +4353,13 @@ function _createElement (
   if (process.env.NODE_ENV !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -4998,7 +5037,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.11';
+Vue$3.version = '2.5.12';
 
 /*  */
 
@@ -5573,7 +5612,7 @@ function createPatchFunction (backend) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
   }
 
@@ -6339,6 +6378,9 @@ var klass = {
 
 
 
+// add a raw attr (use this in preTransforms)
+
+
 
 
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index add99a44e80..15c97598f1b 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -32,6 +32,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -1351,9 +1353,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1368,31 +1367,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1405,7 +1385,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1547,7 +1527,11 @@ function validateProp (
     observe(value);
     observerState.shouldConvert = prevShouldConvert;
   }
-  if (process.env.NODE_ENV !== 'production') {
+  if (
+    process.env.NODE_ENV !== 'production' &&
+    // skip validation for weex recycle-list child component props
+    !(false && isObject(value) && ('@binding' in value))
+  ) {
     assertProp(prop, key, value, vm, absent);
   }
   return value
@@ -2027,11 +2011,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2041,7 +2026,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -3288,6 +3273,7 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
+  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3924,6 +3910,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3940,6 +3952,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -4039,6 +4052,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -4204,6 +4236,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
@@ -4314,11 +4351,13 @@ function _createElement (
   if (process.env.NODE_ENV !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -4996,7 +5035,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.11';
+Vue$3.version = '2.5.12';
 
 /*  */
 
@@ -5571,7 +5610,7 @@ function createPatchFunction (backend) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
   }
 
@@ -6337,6 +6376,9 @@ var klass = {
 
 
 
+// add a raw attr (use this in preTransforms)
+
+
 
 
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 3bc9a4f47e6..00d65c2d3b6 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -38,6 +38,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -1357,9 +1359,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if ("development" !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1374,31 +1373,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1411,7 +1391,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if ("development" !== 'production' && inject) {
+  } else {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -2033,11 +2013,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2047,7 +2028,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -3290,6 +3271,7 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
+  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3922,6 +3904,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3938,6 +3946,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -4037,6 +4046,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -4202,6 +4230,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
@@ -4312,11 +4345,13 @@ function _createElement (
   if ("development" !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -4987,7 +5022,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.11';
+Vue$3.version = '2.5.12';
 
 /*  */
 
@@ -5562,7 +5597,7 @@ function createPatchFunction (backend) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
   }
 
@@ -6328,6 +6363,9 @@ var klass = {
 
 
 
+// add a raw attr (use this in preTransforms)
+
+
 
 
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 574c34fa208..9a3536aec7e 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.11
+ * Vue.js v2.5.12
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function o(t){return"[object Object]"===Ve.call(t)}function a(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function s(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function c(t){var e=parseFloat(t);return isNaN(e)?t:e}function u(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function l(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function f(t,e){return He.call(t,e)}function p(t){var 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_=i.parent,w=f(i);_;){for(var A=0;A<$.destroy.length;++A)$.destroy[A](_);if(_.elm=i.elm,w){for(var x=0;x<$.create.length;++x)$.create[x](Er,_);var O=_.data.hook.insert;if(O.merged)for(var S=1;S<O.fns.length;S++)O.fns[S]()}else Jt(_);_=_.parent}e(y)?m(0,[r],0,0):e(r.tag)&&h(r)}}return b(i,p,l),i.elm}e(r)&&h(r)}}({nodeOps:Or,modules:[Lr,Pr,Fr,Ur,qr,on?{create:ke,activate:ke,remove:function(t,e){!0!==t.data.show?Ae(t,e):e()}}:{}].concat(Dr)});ln&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&De(t,"input")});var ii={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?Q(n,"postpatch",function(){ii.componentUpdated(t,e,n)}):Oe(t,e,n.context),t._vOptions=[].map.call(t.options,je)):("textarea"===n.tag||kr(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Te),pn||(t.addEventListener("compositionstart",Ie),t.addEventListener("compositionend",Te)),ln&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Oe(t,e,n.context);var r=t._vOptions,i=t._vOptions=[].map.call(t.options,je);if(i.some(function(t,e){return!_(t,r[e])})){(t.multiple?e.value.some(function(t){return Ee(t,i)}):e.value!==e.oldValue&&Ee(e.value,i))&&De(t,"change")}}}},oi={model:ii,show:{bind:function(t,e,n){var r=e.value,i=(n=Le(n)).data&&n.data.transition,o=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&i?(n.data.show=!0,we(n,function(){t.style.display=o})):t.style.display=r?o:"none"},update:function(t,e,n){var r=e.value;if(r!==e.oldValue){(n=Le(n)).data&&n.data.transition?(n.data.show=!0,r?we(n,function(){t.style.display=t.__vOriginalDisplay}):Ae(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none"}},unbind:function(t,e,n,r,i){i||(t.style.display=t.__vOriginalDisplay)}}},ai={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},si={name:"transition",props:ai,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||rt(t)})).length){var i=this.mode,o=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return o;var a=Pe(o);if(!a)return o;if(this._leaving)return Me(t,o);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:r(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Ne(this),u=this._vnode,l=Pe(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!rt(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=h({},c);if("out-in"===i)return this._leaving=!0,Q(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Me(t,o);if("in-out"===i){if(rt(a))return u;var p,d=function(){p()};Q(c,"afterEnter",d),Q(c,"enterCancelled",d),Q(f,"delayLeave",function(t){p=t})}}return o}}},ci=h({tag:String,moveClass:String},ai);delete ci.mode;var ui={Transition:si,TransitionGroup:{props:ci,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,i=this.$slots.default||[],o=this.children=[],a=Ne(this),s=0;s<i.length;s++){var c=i[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(o.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,o)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Fe),t.forEach(Ue),t.forEach(Re),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;me(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Qr,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Qr,t),n._moveCb=null,ye(n,e))})}}))},methods:{hasMove:function(t,e){if(!Xr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){de(n,t)}),pe(n,e),n.style.display="none",this.$el.appendChild(n);var r=ge(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Rt.config.mustUseProp=function(t,e,n){return"value"===n&&vr(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Rt.config.isReservedTag=$r,Rt.config.isReservedAttr=dr,Rt.config.getTagNamespace=function(t){return Ar(t)?"svg":"math"===t?"math":void 0},Rt.config.isUnknownElement=function(t){if(!on)return!0;if($r(t))return!1;if(t=t.toLowerCase(),null!=xr[t])return xr[t];var e=document.createElement(t);return t.indexOf("-")>-1?xr[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:xr[t]=/HTMLUnknownElement/.test(e.toString())},h(Rt.options.directives,oi),h(Rt.options.components,ui),Rt.prototype.__patch__=on?ri:y,Rt.prototype.$mount=function(t,e){return t=t&&on?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,function(t,e,n){t.$el=e,t.$options.render||(t.$options.render=Sn),vt(t,"beforeMount");var r;return r=function(){t._update(t._render(),n)},new er(t,r,y,null,!0),n=!1,null==t.$vnode&&(t._isMounted=!0,vt(t,"mounted")),t}(this,t,e)},Rt.nextTick(function(){en.devtools&&bn&&bn.emit("init",Rt)},0),Rt});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 9e7f29730d5..4fc8109c9be 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -33,6 +33,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -590,6 +592,24 @@ function def (obj, key, val, enumerable) {
   });
 }
 
+/**
+ * Parse simple path.
+ */
+var bailRE = /[^\w.$]/;
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  var segments = path.split('.');
+  return function (obj) {
+    for (var i = 0; i < segments.length; i++) {
+      if (!obj) { return }
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
 /*  */
 
 
@@ -925,6 +945,16 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
+var targetStack = [];
+
+function pushTarget (_target) {
+  if (Dep.target) { targetStack.push(Dep.target); }
+  Dep.target = _target;
+}
+
+function popTarget () {
+  Dep.target = targetStack.pop();
+}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -1458,9 +1488,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if ("development" !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1475,31 +1502,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1512,7 +1520,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if ("development" !== 'production' && inject) {
+  } else {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1843,7 +1851,10 @@ function logError (err, vm, info) {
 /* globals MessageChannel */
 
 var callbacks = [];
+var pending = false;
+
 function flushCallbacks () {
+  pending = false;
   var copies = callbacks.slice(0);
   callbacks.length = 0;
   for (var i = 0; i < copies.length; i++) {
@@ -1851,33 +1862,61 @@ function flushCallbacks () {
   }
 }
 
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
 // Determine (macro) Task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
 if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
 } else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
+  var port = channel.port2;
   channel.port1.onmessage = flushCallbacks;
-  
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
 } else {
   /* istanbul ignore next */
-  
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
 }
 
 // Determine MicroTask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
 } else {
   // fallback to macro
-  
+  microTimerFunc = macroTimerFunc;
 }
 
 /**
@@ -1885,6 +1924,36 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
  * the changes are queued using a Task instead of a MicroTask.
  */
 
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
 /*  */
 
 /*  */
@@ -2461,6 +2530,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -2470,23 +2541,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -2506,10 +2584,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -2521,6 +2607,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -2593,6 +2680,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -2644,8 +2733,8 @@ function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
   if ("development" !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
       warn(
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
@@ -2688,8 +2777,8 @@ function transformNode$1 (el, options) {
   if (staticStyle) {
     /* istanbul ignore if */
     {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
         warn(
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
@@ -3548,16 +3637,20 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -3585,9 +3678,11 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -3611,7 +3706,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -3619,6 +3714,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -3731,11 +3830,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -3749,7 +3844,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -3781,11 +3876,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -3866,26 +3962,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      "development" !== 'production' && warn$1(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else {
+      warn$1(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim().replace(stripParensRE, '');
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '');
-      el.iterator1 = iteratorMatch[1].trim();
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -4047,6 +4151,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -4073,8 +4186,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn$1(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -4243,11 +4356,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
 var model$1 = {
   preTransformNode: preTransformNode
 };
@@ -4529,9 +4637,11 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -4567,6 +4677,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -5044,7 +5155,10 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
@@ -6048,6 +6162,33 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
 
 {
   var perf = inBrowser && window.performance;
@@ -6106,11 +6247,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       "development" !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -6120,7 +6262,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -6567,9 +6709,97 @@ function callHook (vm, hook) {
 /*  */
 
 
+var MAX_UPDATE_COUNT = 100;
 
-
+var queue = [];
 var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index$1 = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index$1 = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index$1 = 0; index$1 < queue.length; index$1++) {
+    watcher = queue[index$1];
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if ("development" !== 'production' && has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -6581,14 +6811,252 @@ function queueActivatedComponent (vm) {
   activatedChildren.push(vm);
 }
 
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
 /**
  * Push a watcher into the watcher queue.
  * Jobs with duplicate IDs will be skipped unless it's
  * pushed when the queue is being flushed.
  */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index$1 && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
 
 /*  */
 
+var uid$2 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$2; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = function () {};
+      "development" !== 'production' && warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
+    }
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
+  }
+  return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
+  }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+    var this$1 = this;
+
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this$1.deps[i];
+    if (!this$1.newDepIds.has(dep.id)) {
+      dep.removeSub(this$1);
+    }
+  }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
+  }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
+    }
+  }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+    var this$1 = this;
+
+  var i = this.deps.length;
+  while (i--) {
+    this$1.deps[i].depend();
+  }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+    var this$1 = this;
+
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this$1.deps[i].removeSub(this$1);
+    }
+    this.active = false;
+  }
+};
+
 /*  */
 
 /*  */
@@ -6644,11 +7112,13 @@ function _createElement (
   if ("development" !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -6971,6 +7441,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -6987,6 +7483,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -7038,6 +7535,8 @@ function resolveInject (inject, vm) {
 
 
 
+
+
 function resolveConstructorOptions (Ctor) {
   var options = Ctor.options;
   if (Ctor.super) {
@@ -7192,6 +7691,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -7357,6 +7875,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index cd8eedc953f..7006632ffc1 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -35,6 +35,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -592,6 +594,24 @@ function def (obj, key, val, enumerable) {
   });
 }
 
+/**
+ * Parse simple path.
+ */
+var bailRE = /[^\w.$]/;
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  var segments = path.split('.');
+  return function (obj) {
+    for (var i = 0; i < segments.length; i++) {
+      if (!obj) { return }
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
 /*  */
 
 
@@ -927,6 +947,16 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
+var targetStack = [];
+
+function pushTarget (_target) {
+  if (Dep.target) { targetStack.push(Dep.target); }
+  Dep.target = _target;
+}
+
+function popTarget () {
+  Dep.target = targetStack.pop();
+}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -1460,9 +1490,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1477,31 +1504,12 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1514,7 +1522,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1656,7 +1664,11 @@ function validateProp (
     observe(value);
     observerState.shouldConvert = prevShouldConvert;
   }
-  if (process.env.NODE_ENV !== 'production') {
+  if (
+    process.env.NODE_ENV !== 'production' &&
+    // skip validation for weex recycle-list child component props
+    !(false && isObject(value) && ('@binding' in value))
+  ) {
     assertProp(prop, key, value, vm, absent);
   }
   return value
@@ -1845,7 +1857,10 @@ function logError (err, vm, info) {
 /* globals MessageChannel */
 
 var callbacks = [];
+var pending = false;
+
 function flushCallbacks () {
+  pending = false;
   var copies = callbacks.slice(0);
   callbacks.length = 0;
   for (var i = 0; i < copies.length; i++) {
@@ -1853,33 +1868,61 @@ function flushCallbacks () {
   }
 }
 
+// Here we have async deferring wrappers using both micro and macro tasks.
+// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
+// micro tasks have too high a priority and fires in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using macro tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use micro task by default, but expose a way to force macro task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
 // Determine (macro) Task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
 if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
 } else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
+  var port = channel.port2;
   channel.port1.onmessage = flushCallbacks;
-  
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
 } else {
   /* istanbul ignore next */
-  
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
 }
 
 // Determine MicroTask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
 } else {
   // fallback to macro
-  
+  microTimerFunc = macroTimerFunc;
 }
 
 /**
@@ -1887,6 +1930,36 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
  * the changes are queued using a Task instead of a MicroTask.
  */
 
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
 /*  */
 
 /*  */
@@ -2555,6 +2628,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -2564,23 +2639,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -2600,10 +2682,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -2615,6 +2705,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -2687,6 +2778,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -2738,8 +2831,8 @@ function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
   if (process.env.NODE_ENV !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
       warn(
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
@@ -2782,8 +2875,8 @@ function transformNode$1 (el, options) {
   if (staticStyle) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
         warn(
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
@@ -3287,16 +3380,20 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -3324,9 +3421,11 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -3350,7 +3449,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -3358,6 +3457,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -3470,11 +3573,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -3488,7 +3587,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -3520,11 +3619,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -3605,26 +3705,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn$1(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn$1(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim().replace(stripParensRE, '');
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '');
-      el.iterator1 = iteratorMatch[1].trim();
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -3786,6 +3894,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -3812,8 +3929,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn$1(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -3982,11 +4099,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
 var model$1 = {
   preTransformNode: preTransformNode
 };
@@ -4268,9 +4380,11 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -4306,6 +4420,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -4783,7 +4898,10 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
@@ -5787,6 +5905,33 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
 
 if (process.env.NODE_ENV !== 'production') {
   var perf = inBrowser && window.performance;
@@ -5845,11 +5990,12 @@ function updateListeners (
   remove$$1,
   vm
 ) {
-  var name, cur, old, event;
+  var name, def, cur, old, event;
   for (name in on) {
-    cur = on[name];
+    def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -5859,7 +6005,7 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive);
+      add(event.name, cur, event.once, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -6308,9 +6454,97 @@ function callHook (vm, hook) {
 /*  */
 
 
+var MAX_UPDATE_COUNT = 100;
 
-
+var queue = [];
 var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index$1 = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index$1 = queue.length = activatedChildren.length = 0;
+  has = {};
+  if (process.env.NODE_ENV !== 'production') {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index$1 = 0; index$1 < queue.length; index$1++) {
+    watcher = queue[index$1];
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -6322,14 +6556,254 @@ function queueActivatedComponent (vm) {
   activatedChildren.push(vm);
 }
 
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
 /**
  * Push a watcher into the watcher queue.
  * Jobs with duplicate IDs will be skipped unless it's
  * pushed when the queue is being flushed.
  */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index$1 && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
 
 /*  */
 
+var uid$2 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$2; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = process.env.NODE_ENV !== 'production'
+    ? expOrFn.toString()
+    : '';
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = function () {};
+      process.env.NODE_ENV !== 'production' && warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
+    }
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
+  }
+  return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
+  }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+    var this$1 = this;
+
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this$1.deps[i];
+    if (!this$1.newDepIds.has(dep.id)) {
+      dep.removeSub(this$1);
+    }
+  }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
+  }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
+    }
+  }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+    var this$1 = this;
+
+  var i = this.deps.length;
+  while (i--) {
+    this$1.deps[i].depend();
+  }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+    var this$1 = this;
+
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this$1.deps[i].removeSub(this$1);
+    }
+    this.active = false;
+  }
+};
+
 /*  */
 
 /*  */
@@ -6385,11 +6859,13 @@ function _createElement (
   if (process.env.NODE_ENV !== 'production' &&
     isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
   }
   // support single function children as default scoped slot
   if (Array.isArray(children) &&
@@ -6712,6 +7188,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -6728,6 +7230,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -6779,6 +7282,8 @@ function resolveInject (inject, vm) {
 
 
 
+
+
 function resolveConstructorOptions (Ctor) {
   var options = Ctor.options;
   if (Ctor.super) {
@@ -6933,6 +7438,25 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+// listening on native callback
+
+/*  */
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -7098,6 +7622,11 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
   return vnode
 }
 
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 9c3b712ccc6..b978f57f151 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.11",
+  "version": "2.5.12",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index f0c40368247..d05bc5aa413 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -1843,6 +1843,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -1852,23 +1854,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -1888,10 +1897,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -1903,6 +1920,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -1975,6 +1993,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -2026,8 +2046,8 @@ function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
   if ("development" !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
       warn(
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
@@ -2093,8 +2113,8 @@ function transformNode$1 (el, options) {
   if (staticStyle) {
     /* istanbul ignore if */
     {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
         warn(
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
@@ -2646,16 +2666,20 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -2683,9 +2707,11 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -2709,7 +2735,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -2717,6 +2743,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -2829,11 +2859,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -2847,7 +2873,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -2879,11 +2905,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -2964,26 +2991,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      "development" !== 'production' && warn$1(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else {
+      warn$1(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim().replace(stripParensRE, '');
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '');
-      el.iterator1 = iteratorMatch[1].trim();
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -3145,6 +3180,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -3171,8 +3215,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn$1(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -3341,11 +3385,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
 var model = {
   preTransformNode: preTransformNode
 };
@@ -3754,9 +3793,11 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -3792,6 +3833,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -4269,7 +4311,10 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
@@ -4547,7 +4592,9 @@ var createCompiler = createCompilerCreator(function baseCompile (
   options
 ) {
   var ast = parse(template.trim(), options);
-  optimize(ast, options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
   var code = generate(ast, options);
   return {
     ast: ast,
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 8ff77bf0818..faa56b58951 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -1800,6 +1800,8 @@ var buildRegex = cached(function (delimiters) {
   return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
 });
 
+
+
 function parseText (
   text,
   delimiters
@@ -1809,23 +1811,30 @@ function parseText (
     return
   }
   var tokens = [];
+  var rawTokens = [];
   var lastIndex = tagRE.lastIndex = 0;
-  var match, index;
+  var match, index, tokenValue;
   while ((match = tagRE.exec(text))) {
     index = match.index;
     // push text token
     if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
     }
     // tag token
     var exp = parseFilters(match[1].trim());
     tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
     lastIndex = index + match[0].length;
   }
   if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
   }
-  return tokens.join('+')
 }
 
 /*  */
@@ -1845,10 +1854,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -1860,6 +1877,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -1932,6 +1950,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -1983,8 +2003,8 @@ function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
   if (process.env.NODE_ENV !== 'production' && staticClass) {
-    var expression = parseText(staticClass, options.delimiters);
-    if (expression) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
       warn(
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
@@ -2050,8 +2070,8 @@ function transformNode$1 (el, options) {
   if (staticStyle) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production') {
-      var expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
         warn(
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
@@ -2248,16 +2268,20 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -2285,9 +2309,11 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -2311,7 +2337,7 @@ function parse (
     }
   }
 
-  function endPre (element) {
+  function closeElement (element) {
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -2319,6 +2345,10 @@ function parse (
     if (platformIsPreTag(element.tag)) {
       inPre = false;
     }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
   }
 
   parseHTML(template, {
@@ -2431,11 +2461,7 @@ function parse (
         currentParent = element;
         stack.push(element);
       } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (var i$1 = 0; i$1 < postTransforms.length; i$1++) {
-        postTransforms[i$1](element, options);
+        closeElement(element);
       }
     },
 
@@ -2449,7 +2475,7 @@ function parse (
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
-      endPre(element);
+      closeElement(element);
     },
 
     chars: function chars (text) {
@@ -2481,11 +2507,12 @@ function parse (
         // only preserve whitespace if its not right after a starting tag
         : preserveWhitespace && children.length ? ' ' : '';
       if (text) {
-        var expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
           children.push({
             type: 2,
-            expression: expression,
+            expression: res.expression,
+            tokens: res.tokens,
             text: text
           });
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
@@ -2566,26 +2593,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn$1(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn$1(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim().replace(stripParensRE, '');
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = alias.replace(forIteratorRE, '');
-      el.iterator1 = iteratorMatch[1].trim();
-      if (iteratorMatch[2]) {
-        el.iterator2 = iteratorMatch[2].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -2747,6 +2782,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -2773,8 +2817,8 @@ function processAttrs (el) {
     } else {
       // literal attribute
       if (process.env.NODE_ENV !== 'production') {
-        var expression = parseText(value, delimiters);
-        if (expression) {
+        var res = parseText(value, delimiters);
+        if (res) {
           warn$1(
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
@@ -2943,11 +2987,6 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
 var model = {
   preTransformNode: preTransformNode
 };
@@ -3356,9 +3395,11 @@ function genHandler (
   var isFunctionExpression = fnExpRE.test(handler.value);
 
   if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : ("function($event){" + (handler.value) + "}") // inline statement
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    /* istanbul ignore if */
+    return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -3394,6 +3435,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -3871,7 +3913,10 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
@@ -4149,7 +4194,9 @@ var createCompiler = createCompilerCreator(function baseCompile (
   options
 ) {
   var ast = parse(template.trim(), options);
-  optimize(ast, options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
   var code = generate(ast, options);
   return {
     ast: ast,
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index e4ac785654e..3430230c2ec 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.11",
+  "version": "2.5.12",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",
diff --git a/packages/weex-template-compiler/build.js b/packages/weex-template-compiler/build.js
index ec042ce032f..9da2ee9597c 100644
--- a/packages/weex-template-compiler/build.js
+++ b/packages/weex-template-compiler/build.js
@@ -142,17 +142,9 @@ var camelize = cached(function (str) {
 /**
  * Capitalize a string.
  */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
 
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
+
+
 
 /**
  * Simple bind, faster than native
@@ -896,7 +888,7 @@ var isServerRendering = function () {
 };
 
 // detect devtools
-
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
 
 /* istanbul ignore next */
 function isNative (Ctor) {
@@ -907,29 +899,13 @@ var hasSymbol =
   typeof Symbol !== 'undefined' && isNative(Symbol) &&
   typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
 
-var _Set;
 /* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
-  _Set = Set;
+  
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
+  
 }
 
 /*  */
@@ -949,10 +925,18 @@ function pluckModuleFunction (
 
 function addProp (el, name, value) {
   (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
 }
 
 function addAttr (el, name, value) {
   (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
 }
 
 function addDirective (
@@ -964,6 +948,7 @@ function addDirective (
   modifiers
 ) {
   (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
 }
 
 function addHandler (
@@ -1036,6 +1021,8 @@ function addHandler (
   } else {
     events[name] = newHandler;
   }
+
+  el.plain = false;
 }
 
 function getBindingAttr (
@@ -1086,22 +1073,27 @@ function getAndRemoveAttr (
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
 var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
+var literalValueRE = /^(\{.*\}|\[.*\])$/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn;
+var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
+var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -1129,9 +1121,11 @@ function parse (
   options
 ) {
   warn = options.warn || baseWarn;
+  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
+  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -1411,26 +1405,34 @@ function processRef (el) {
 function processFor (el) {
   var exp;
   if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      process.env.NODE_ENV !== 'production' && warn(
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn(
         ("Invalid v-for expression: " + exp)
       );
-      return
     }
-    el.for = inMatch[2].trim();
-    var alias = inMatch[1].trim();
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
-      }
-    } else {
-      el.alias = alias;
+  }
+}
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '');
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
     }
+  } else {
+    res.alias = alias;
   }
+  return res
 }
 
 function processIf (el) {
@@ -1592,6 +1594,15 @@ function processAttrs (el) {
             );
           }
         }
+        // optimize literal values in component props by wrapping them
+        // in an inline watcher to avoid unnecessary re-renders
+        if (
+          !platformIsReservedTag(el.tag) &&
+          el.tag !== 'slot' &&
+          literalValueRE.test(value.trim())
+        ) {
+          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
+        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -1897,6 +1908,7 @@ function genHandlers (
 }
 
 // Generate handler code with binding params on Weex
+/* istanbul ignore next */
 function genWeexHandler (params, handlerCode) {
   var innerHandlerCode = handlerCode;
   var exps = params.filter(function (exp) { return simplePathRE.test(exp) && exp !== '$event'; });
@@ -1932,6 +1944,7 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
+    /* istanbul ignore if */
     if (true && handler.params) {
       return genWeexHandler(handler.params, handler.value)
     }
@@ -1971,6 +1984,7 @@ function genHandler (
       : isFunctionExpression
         ? ("(" + (handler.value) + ")($event)")
         : handler.value;
+    /* istanbul ignore if */
     if (true && handler.params) {
       return genWeexHandler(handler.params, code + handlerCode)
     }
@@ -2041,6 +2055,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -2081,6 +2096,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -2328,8 +2344,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -2640,18 +2655,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -2798,6 +2813,8 @@ var defaultStrat = function (parentVal, childVal) {
     : childVal
 };
 
+
+
 function assertObjectType (name, value, vm) {
   if (!isPlainObject(value)) {
     warn$1(
@@ -2958,10 +2975,10 @@ function genElement (el, state) {
 }
 
 // hoist static sub-trees out
-function genStatic (el, state, once$$1) {
+function genStatic (el, state) {
   el.staticProcessed = true;
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + "," + (el.staticInFor ? 'true' : 'false') + "," + (once$$1 ? 'true' : 'false') + ")")
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
 // v-once
@@ -2987,7 +3004,7 @@ function genOnce (el, state) {
     }
     return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
   } else {
-    return genStatic(el, state, true)
+    return genStatic(el, state)
   }
 }
 
@@ -3327,11 +3344,15 @@ function genProps (props) {
   var res = '';
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    res += "\"" + (prop.name) + "\":" + (generateValue(prop.value)) + ",";
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (generateValue(prop.value)) + ",";
+    }
   }
   return res.slice(0, -1)
 }
 
+/* istanbul ignore next */
 function generateValue (value) {
   if (typeof value === 'string') {
     return transformSpecialNewlines(value)
@@ -3574,7 +3595,7 @@ function createCompilerCreator (baseCompile) {
         // merge custom directives
         if (options.directives) {
           finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
+            Object.create(baseOptions.directives || null),
             options.directives
           );
         }
@@ -3612,7 +3633,9 @@ var createCompiler = createCompilerCreator(function baseCompile (
   options
 ) {
   var ast = parse(template.trim(), options);
-  optimize(ast, options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
   var code = generate(ast, options);
   return {
     ast: ast,
@@ -3790,8 +3813,12 @@ var props = {
 
 /*  */
 
+// The "unitary tag" means that the tag node and its children
+// must be sent to the native together.
+var isUnitaryTag = makeMap('cell,header,cell-slot,recycle-list', true);
+
 function preTransformNode (el, options) {
-  if (el.tag === 'cell' && !el.attrsList.some(function (item) { return item.name === 'append'; })) {
+  if (isUnitaryTag(el.tag) && !el.attrsList.some(function (item) { return item.name === 'append'; })) {
     el.attrsMap.append = 'tree';
     el.attrsList.push({ name: 'append', value: 'tree' });
   }
@@ -3812,6 +3839,45 @@ var append = {
 
 /*  */
 
+
+var RECYCLE_LIST_MARKER = '@inRecycleList';
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+
+
+// Updates the state of the component to weex native render engine.
+
+/*  */
+
+// mark components as inside recycle-list so that we know we need to invoke
+// their special @render function instead of render in create-component.js
+function postTransformComponent (
+  el,
+  options
+) {
+  // $flow-disable-line (we know isReservedTag is there)
+  if (!options.isReservedTag(el.tag) && el.tag !== 'cell-slot') {
+    addAttr(el, RECYCLE_LIST_MARKER, 'true');
+  }
+}
+
+/*  */
+
+// mark component root nodes as
+function postTransformComponentRoot (
+  el,
+  options
+) {
+  if (!el.parent) {
+    // component root
+    addAttr(el, '@isComponentRoot', 'true');
+    addAttr(el, '@componentProps', '$props || {}');
+  }
+}
+
+/*  */
+
 function genText$1 (node) {
   var value = node.type === 3
     ? node.text
@@ -3829,7 +3895,6 @@ function postTransformText (el, options) {
   if (el.children.length) {
     addAttr(el, 'value', genText$1(el.children[0]));
     el.children = [];
-    el.plain = false;
   }
 }
 
@@ -3847,10 +3912,7 @@ function preTransformVBind (el, options) {
         '@binding': getAndRemoveAttr(el, attr)
       };
       delete el.attrsMap[attr];
-      el.attrsMap[name] = value;
-      el.attrsList.push({ name: name, value: value });
-      // addAttr(el, name, value)
-      // el.hasBindings = false
+      addRawAttr(el, name, value);
     }
   }
 }
@@ -3877,8 +3939,10 @@ function preTransformVIf (el, options) {
   if (hasConditionDirective(el)) {
     var exp;
     var ifExp = getAndRemoveAttr(el, 'v-if', true /* remove from attrsMap */);
-    var elseExp = getAndRemoveAttr(el, 'v-else', true);
     var elseifExp = getAndRemoveAttr(el, 'v-else-if', true);
+    // don't need the value, but remove it to avoid being generated as a
+    // custom directive
+    getAndRemoveAttr(el, 'v-else', true);
     if (ifExp) {
       exp = ifExp;
     } else {
@@ -3895,8 +3959,7 @@ function preTransformVIf (el, options) {
         return
       }
     }
-    el.attrsMap['[[match]]'] = exp;
-    el.attrsList.push({ name: '[[match]]', value: exp });
+    addRawAttr(el, '[[match]]', exp);
   }
 }
 
@@ -3907,28 +3970,28 @@ function preTransformVFor (el, options) {
   if (!exp) {
     return
   }
-  var inMatch = exp.match(forAliasRE);
-  if (inMatch) {
-    var alias = inMatch[1].trim();
-    var desc = {
-      '@expression': inMatch[2].trim(),
-      '@alias': alias
-    };
-    var iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      desc['@alias'] = iteratorMatch[1].trim();
-      desc['@index'] = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        desc['@key'] = iteratorMatch[2].trim();
-        desc['@index'] = iteratorMatch[3].trim();
-      }
+
+  var res = parseFor(exp);
+  if (!res) {
+    if (process.env.NODE_ENV !== 'production' && options.warn) {
+      options.warn(("Invalid v-for expression: " + exp));
     }
-    delete el.attrsMap['v-for'];
-    el.attrsMap['[[repeat]]'] = desc;
-    el.attrsList.push({ name: '[[repeat]]', value: desc });
-  } else if (process.env.NODE_ENV !== 'production' && options.warn) {
-    options.warn(("Invalid v-for expression: " + exp));
+    return
+  }
+
+  var desc = {
+    '@expression': res.for,
+    '@alias': res.alias
+  };
+  if (res.iterator2) {
+    desc['@key'] = res.iterator1;
+    desc['@index'] = res.iterator2;
+  } else {
+    desc['@index'] = res.iterator1;
   }
+
+  delete el.attrsMap['v-for'];
+  addRawAttr(el, '[[repeat]]', desc);
 }
 
 /*  */
@@ -3985,6 +4048,10 @@ function transformNode$3 (el, options) {
 
 function postTransformNode (el, options) {
   if (shouldCompile(el, options)) {
+    // mark child component in parent template
+    postTransformComponent(el, options);
+    // mark root in child component template
+    postTransformComponentRoot(el, options);
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
       postTransformText(el, options);
@@ -4049,7 +4116,11 @@ var directives = {
   model: model
 };
 
-/* globals document */
+/*  */
+
+// These util functions are split into its own file because Rollup cannot drop
+// makeMap() due to potential side effects, so these variables end up
+// bloating the web builds.
 
 var isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
@@ -4078,8 +4149,11 @@ var isUnaryTag$1 = makeMap(
   true
 );
 
-function mustUseProp () { /* console.log('mustUseProp') */ }
-function getTagNamespace () { /* console.log('getTagNamespace') */ }
+function mustUseProp (tag, type, name) {
+  return false
+}
+
+function getTagNamespace (tag) { }
 
 /*  */
 
@@ -4112,6 +4186,8 @@ function compile (
   // generate @render function for <recycle-list>
   if (options && generateAltRender) {
     options.recyclable = true;
+    // disable static optimizations
+    options.optimize = false;
     var ref = compiler.compile(template, options);
     var render = ref.render;
     result['@render'] = render;
diff --git a/packages/weex-vue-framework/factory.js b/packages/weex-vue-framework/factory.js
index 858e217e602..1c6974d4951 100644
--- a/packages/weex-vue-framework/factory.js
+++ b/packages/weex-vue-framework/factory.js
@@ -335,6 +335,7 @@ var config = ({
   /**
    * Option merge strategies (used in core/util/options)
    */
+  // $flow-disable-line
   optionMergeStrategies: Object.create(null),
 
   /**
@@ -375,6 +376,7 @@ var config = ({
   /**
    * Custom user key aliases for v-on
    */
+  // $flow-disable-line
   keyCodes: Object.create(null),
 
   /**
@@ -809,8 +811,7 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-]
-.forEach(function (method) {
+].forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1142,18 +1143,18 @@ function mergeDataOrFn (
     // it has to be a function to pass previous merges.
     return function mergedDataFn () {
       return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
       )
     }
   } else {
     return function mergedInstanceDataFn () {
       // instance merge
       var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
+        ? childVal.call(vm, vm)
         : childVal;
       var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
+        ? parentVal.call(vm, vm)
         : parentVal;
       if (instanceData) {
         return mergeData(instanceData, defaultData)
@@ -1305,13 +1306,23 @@ var defaultStrat = function (parentVal, childVal) {
  */
 function checkComponents (options) {
   for (var key in options.components) {
-    var lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
   }
 }
 
@@ -1339,6 +1350,9 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
+      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
+        validatePropObject(name, val, vm);
+      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1353,11 +1367,32 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
+/**
+ * Validate whether a prop object keys are valid.
+ */
+var propOptionsRE = /^(type|default|required|validator)$/;
+
+function validatePropObject (
+  propName,
+  prop,
+  vm
+) {
+  for (var key in prop) {
+    if (!propOptionsRE.test(key)) {
+      warn(
+        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
+        vm
+      );
+    }
+  }
+}
+
 /**
  * Normalize all injections into Object-based format
  */
 function normalizeInject (options, vm) {
   var inject = options.inject;
+  if (!inject) { return }
   var normalized = options.inject = {};
   if (Array.isArray(inject)) {
     for (var i = 0; i < inject.length; i++) {
@@ -1370,7 +1405,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1512,7 +1547,11 @@ function validateProp (
     observe(value);
     observerState.shouldConvert = prevShouldConvert;
   }
-  if (process.env.NODE_ENV !== 'production') {
+  if (
+    process.env.NODE_ENV !== 'production' &&
+    // skip validation for weex recycle-list child component props
+    !(true && isObject(value) && ('@binding' in value))
+  ) {
     assertProp(prop, key, value, vm, absent);
   }
   return value
@@ -1990,6 +2029,7 @@ function updateListeners (
     def = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
+    /* istanbul ignore if */
     if (true && isPlainObject(def)) {
       cur = def.handler;
       event.params = def.params;
@@ -2497,6 +2537,8 @@ function eventsMixin (Vue) {
 
 /*  */
 
+
+
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
  */
@@ -2520,10 +2562,10 @@ function resolveSlots (
     if ((child.context === context || child.fnContext === context) &&
       data && data.slot != null
     ) {
-      var name = child.data.slot;
+      var name = data.slot;
       var slot = (slots[name] || (slots[name] = []));
       if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
+        slot.push.apply(slot, child.children || []);
       } else {
         slot.push(child);
       }
@@ -3248,6 +3290,7 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
+  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3364,6 +3407,7 @@ function getData (data, vm) {
 var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
+  // $flow-disable-line
   var watchers = vm._computedWatchers = Object.create(null);
   // computed properties are just getters during SSR
   var isSSR = isServerRendering();
@@ -3594,11 +3638,11 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
@@ -3804,19 +3848,9 @@ function bindObjectProps (
  */
 function renderStatic (
   index,
-  isInFor,
-  isOnce
+  isInFor
 ) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  var isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  var renderFns = this.$options.staticRenderFns;
-  var cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
+  var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
   // we can reuse the same tree by doing a shallow clone.
@@ -3826,7 +3860,11 @@ function renderStatic (
       : cloneVNode(tree)
   }
   // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
   markStatic(tree, ("__static__" + index), false);
   return tree
 }
@@ -3889,6 +3927,32 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+/**
+ * This runtime helper creates an inline computed property for component
+ * props that contain object or array literals. The caching ensures the same
+ * object/array is returned unless the value has indeed changed, thus avoiding
+ * the child component to always re-render when comparing props values.
+ *
+ * Installed to the instance as _a, requires special handling in parser that
+ * transforms the following
+ *   <foo :bar="{ a: 1 }"/>
+ * to:
+ *   <foo :bar="_a(0, function(){return { a: 1 }})"
+ */
+function createInlineComputed (id, getter) {
+  var vm = this;
+  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
+  var cached$$1 = watchers[id];
+  if (cached$$1) {
+    return cached$$1.value
+  } else {
+    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
+    return watchers[id].value
+  }
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3905,6 +3969,7 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._a = createInlineComputed;
 }
 
 /*  */
@@ -4004,6 +4069,201 @@ function mergeProps (to, from) {
 
 /*  */
 
+
+var RECYCLE_LIST_MARKER = '@inRecycleList';
+
+// Register the component hook to weex native render engine.
+// The hook will be triggered by native, not javascript.
+function registerComponentHook (
+  componentId,
+  type, // hook type, could be "lifecycle" or "instance"
+  hook, // hook name
+  fn
+) {
+  if (!document || !document.taskCenter) {
+    warn("Can't find available \"document\" or \"taskCenter\".");
+    return
+  }
+  if (typeof document.taskCenter.registerHook === 'function') {
+    return document.taskCenter.registerHook(componentId, type, hook, fn)
+  }
+  warn(("Failed to register component hook \"" + type + "@" + hook + "#" + componentId + "\"."));
+}
+
+// Updates the state of the component to weex native render engine.
+function updateComponentData (
+  componentId,
+  newData,
+  callback
+) {
+  if (!document || !document.taskCenter) {
+    warn("Can't find available \"document\" or \"taskCenter\".");
+    return
+  }
+  if (typeof document.taskCenter.updateData === 'function') {
+    return document.taskCenter.updateData(componentId, newData, callback)
+  }
+  warn(("Failed to update component data (" + componentId + ")."));
+}
+
+/*  */
+
+// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+
+var uid$3 = 0;
+
+// override Vue.prototype._init
+function initVirtualComponent (options) {
+  if ( options === void 0 ) options = {};
+
+  var vm = this;
+  var componentId = options.componentId;
+
+  // virtual component uid
+  vm._uid = "virtual-component-" + (uid$3++);
+
+  // a flag to avoid this being observed
+  vm._isVue = true;
+  // merge options
+  if (options && options._isComponent) {
+    // optimize internal component instantiation
+    // since dynamic options merging is pretty slow, and none of the
+    // internal component options needs special treatment.
+    initInternalComponent(vm, options);
+  } else {
+    vm.$options = mergeOptions(
+      resolveConstructorOptions(vm.constructor),
+      options || {},
+      vm
+    );
+  }
+
+  /* istanbul ignore else */
+  if (process.env.NODE_ENV !== 'production') {
+    initProxy(vm);
+  } else {
+    vm._renderProxy = vm;
+  }
+
+  vm._self = vm;
+  initLifecycle(vm);
+  initEvents(vm);
+  initRender(vm);
+  callHook(vm, 'beforeCreate');
+  initInjections(vm); // resolve injections before data/props
+  initState(vm);
+  initProvide(vm); // resolve provide after data/props
+  callHook(vm, 'created');
+
+  // send initial data to native
+  var data = vm.$options.data;
+  var params = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (isPlainObject(params)) {
+    updateComponentData(componentId, params);
+  }
+
+  registerComponentHook(componentId, 'lifecycle', 'attach', function () {
+    callHook(vm, 'beforeMount');
+
+    var updateComponent = function () {
+      vm._update(vm._vnode, false);
+    };
+    new Watcher(vm, updateComponent, noop, null, true);
+
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  });
+
+  registerComponentHook(componentId, 'lifecycle', 'detach', function () {
+    vm.$destroy();
+  });
+}
+
+// override Vue.prototype._update
+function updateVirtualComponent (vnode) {
+  var vm = this;
+  var componentId = vm.$options.componentId;
+  if (vm._isMounted) {
+    callHook(vm, 'beforeUpdate');
+  }
+  vm._vnode = vnode;
+  if (vm._isMounted && componentId) {
+    // TODO: data should be filtered and without bindings
+    var data = Object.assign({}, vm._data);
+    updateComponentData(componentId, data, function () {
+      callHook(vm, 'updated');
+    });
+  }
+}
+
+// listening on native callback
+function resolveVirtualComponent (vnode) {
+  var BaseCtor = vnode.componentOptions.Ctor;
+  var VirtualComponent = BaseCtor.extend({});
+  var cid = VirtualComponent.cid;
+  VirtualComponent.prototype._init = initVirtualComponent;
+  VirtualComponent.prototype._update = updateVirtualComponent;
+
+  vnode.componentOptions.Ctor = BaseCtor.extend({
+    beforeCreate: function beforeCreate () {
+      // const vm: Component = this
+
+      // TODO: listen on all events and dispatch them to the
+      // corresponding virtual components according to the componentId.
+      // vm._virtualComponents = {}
+      var createVirtualComponent = function (componentId, propsData) {
+        // create virtual component
+        // const subVm =
+        new VirtualComponent({
+          componentId: componentId,
+          propsData: propsData
+        });
+        // if (vm._virtualComponents) {
+        //   vm._virtualComponents[componentId] = subVm
+        // }
+      };
+
+      registerComponentHook(cid, 'lifecycle', 'create', createVirtualComponent);
+    },
+    beforeDestroy: function beforeDestroy () {
+      delete this._virtualComponents;
+    }
+  });
+}
+
+/*  */
+
+function isRecyclableComponent (vnode) {
+  return vnode.data.attrs
+    ? (RECYCLE_LIST_MARKER in vnode.data.attrs)
+    : false
+}
+
+function renderRecyclableComponentTemplate (vnode) {
+  // $flow-disable-line
+  delete vnode.data.attrs[RECYCLE_LIST_MARKER];
+  resolveVirtualComponent(vnode);
+  var vm = createComponentInstanceForVnode(vnode);
+  var render = (vm.$options)['@render'];
+  if (render) {
+    try {
+      return render.call(vm)
+    } catch (err) {
+      handleError(err, vm, "@render");
+    }
+  } else {
+    warn(
+      "@render function not defined on component used in <recycle-list>. " +
+      "Make sure to declare `recyclable=\"true\"` on the component's template.",
+      vm
+    );
+  }
+}
+
+/*  */
+
 // hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
@@ -4122,21 +4382,6 @@ function createComponent (
 
   data = data || {};
 
-  // recycle-list optimized render function for extracting cell-slot
-  // template. This is essentially inline expanding instead of creating
-  // an actual instance.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  if (true && data.attrs && data.attrs['@isInRecycleList']) {
-    var altRender = Ctor.options['@render'];
-    if (altRender) {
-      return altRender.call(
-        context,
-        context.$createElement,
-        data.attrs
-      )
-    }
-  }
-
   // resolve constructor options in case global mixins are applied after
   // component constructor creation
   resolveConstructorOptions(Ctor);
@@ -4184,6 +4429,15 @@ function createComponent (
     { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
     asyncFactory
   );
+
+  // Weex specific: invoke recycle-list optimized @render function for
+  // extracting cell-slot template.
+  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  /* istanbul ignore if */
+  if (true && isRecyclableComponent(vnode)) {
+    return renderRecyclableComponentTemplate(vnode)
+  }
+
   return vnode
 }
 
@@ -4193,15 +4447,10 @@ function createComponentInstanceForVnode (
   parentElm,
   refElm
 ) {
-  var vnodeComponentOptions = vnode.componentOptions;
   var options = {
     _isComponent: true,
     parent: parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
     _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
     _parentElm: parentElm || null,
     _refElm: refElm || null
   };
@@ -4211,7 +4460,7 @@ function createComponentInstanceForVnode (
     options.render = inlineTemplate.render;
     options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
-  return new vnodeComponentOptions.Ctor(options)
+  return new vnode.componentOptions.Ctor(options)
 }
 
 function mergeHooks (data) {
@@ -4547,14 +4796,18 @@ function initMixin (Vue) {
 function initInternalComponent (vm, options) {
   var opts = vm.$options = Object.create(vm.constructor.options);
   // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
   opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
+  opts._parentVnode = parentVnode;
   opts._parentElm = options._parentElm;
   opts._refElm = options._refElm;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
   if (options.render) {
     opts.render = options.render;
     opts.staticRenderFns = options.staticRenderFns;
@@ -4688,14 +4941,8 @@ function initExtend (Vue) {
     }
 
     var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production') {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
+    if (process.env.NODE_ENV !== 'production' && name) {
+      validateComponentName(name);
     }
 
     var Sub = function VueComponent (options) {
@@ -4777,13 +5024,8 @@ function initAssetRegisters (Vue) {
         return this.options[type + 's'][id]
       } else {
         /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production') {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
+        if (process.env.NODE_ENV !== 'production' && type === 'component') {
+          validateComponentName(id);
         }
         if (type === 'component' && isPlainObject(definition)) {
           definition.name = definition.name || id;
@@ -4990,7 +5232,7 @@ Object.defineProperty(Vue$2.prototype, '$ssrContext', {
   }
 });
 
-Vue$2.version = '2.5.8';
+Vue$2.version = '2.5.11';
 
 var latestNodeId = 1;
 
@@ -5422,6 +5664,9 @@ function createPatchFunction (backend) {
 
   function createChildren (vnode, children, insertedVnodeQueue) {
     if (Array.isArray(children)) {
+      if (process.env.NODE_ENV !== 'production') {
+        checkDuplicateKeys(children);
+      }
       for (var i = 0; i < children.length; ++i) {
         createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
       }
@@ -5553,6 +5798,10 @@ function createPatchFunction (backend) {
     // during leaving transitions
     var canMove = !removeOnly;
 
+    if (process.env.NODE_ENV !== 'production') {
+      checkDuplicateKeys(newCh);
+    }
+
     while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
       if (isUndef(oldStartVnode)) {
         oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
@@ -5585,13 +5834,6 @@ function createPatchFunction (backend) {
           createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
         } else {
           vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
           if (sameVnode(vnodeToMove, newStartVnode)) {
             patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
             oldCh[idxInOld] = undefined;
@@ -5612,6 +5854,24 @@ function createPatchFunction (backend) {
     }
   }
 
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
   function findIdxInOld (node, oldCh, start, end) {
     for (var i = start; i < end; i++) {
       var c = oldCh[i];
@@ -5994,17 +6254,20 @@ function normalizeDirectives$1 (
 ) {
   var res = Object.create(null);
   if (!dirs) {
+    // $flow-disable-line
     return res
   }
   var i, dir;
   for (i = 0; i < dirs.length; i++) {
     dir = dirs[i];
     if (!dir.modifiers) {
+      // $flow-disable-line
       dir.modifiers = emptyModifiers;
     }
     res[getRawDirName(dir)] = dir;
     dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
   }
+  // $flow-disable-line
   return res
 }
 
@@ -6323,12 +6586,26 @@ var autoCssTransition = cached(function (name) {
   }
 });
 
-
+var hasTransition = inBrowser && !isIE9;
 // Transition property/event sniffing
 
 
 
 
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    
+  }
+}
+
 // binding to window is necessary to make hot reload work in IE in strict mode
 var raf = inBrowser
   ? window.requestAnimationFrame
@@ -6977,7 +7254,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
+      true // removeOnly (!important avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -7049,7 +7326,11 @@ var platformComponents = {
   TransitionGroup: TransitionGroup
 };
 
-/* globals document */
+/*  */
+
+// These util functions are split into its own file because Rollup cannot drop
+// makeMap() due to potential side effects, so these variables end up
+// bloating the web builds.
 
 var isReservedTag$1 = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
@@ -7078,9 +7359,15 @@ var isUnaryTag = makeMap(
   true
 );
 
-function mustUseProp () { /* console.log('mustUseProp') */ }
+function mustUseProp (tag, type, name) {
+  return false
+}
+
+
 
-function isUnknownElement$1 () { /* console.log('isUnknownElement') */ }
+function isUnknownElement$1 (tag) {
+  return false
+}
 
 function query (el, document) {
   // document is injected by weex factory wrapper
diff --git a/packages/weex-vue-framework/index.js b/packages/weex-vue-framework/index.js
index 04b1efa99c6..cc9ff370f2e 100644
--- a/packages/weex-vue-framework/index.js
+++ b/packages/weex-vue-framework/index.js
@@ -69,12 +69,8 @@ function createInstance (
   }, timerAPIs, env.services);
 
   appCode = "(function(global){ \n" + appCode + "\n })(Object.create(this))";
-
   callFunction(instanceVars, appCode);
 
-  // Send `createFinish` signal to native.
-  document.taskCenter.send('dom', { action: 'createFinish' }, []);
-
   return instance
 }
 
@@ -169,6 +165,16 @@ function createVueModuleInstance (instanceId, weex) {
         // record instance by id
         instance.app = this;
       }
+    },
+    mounted: function mounted () {
+      var options = this.$options;
+      // root component (vm)
+      if (options.el && weex.document) {
+        try {
+          // Send "createFinish" signal to native.
+          weex.document.taskCenter.send('dom', { action: 'createFinish' }, []);
+        } catch (e) {}
+      }
     }
   });
 

From ec2c48cfd58d2e82d37928af533d5d5bfa30b5c4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 09:54:15 -0500
Subject: [PATCH 345/911] build: release 2.5.12

---
 package-lock.json | 25 +------------------------
 package.json      |  2 +-
 2 files changed, 2 insertions(+), 25 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 0f3b963dd58..1116df0f24c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.11",
+  "version": "2.5.12",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2469,29 +2469,6 @@
         }
       }
     },
-    "css": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/css/-/css-2.2.1.tgz",
-      "integrity": "sha1-c6TIHehdtmTU7mdPfUcIXjstVdw=",
-      "dev": true,
-      "requires": {
-        "inherits": "2.0.3",
-        "source-map": "0.1.43",
-        "source-map-resolve": "0.3.1",
-        "urix": "0.1.0"
-      },
-      "dependencies": {
-        "source-map": {
-          "version": "0.1.43",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
-          "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
-          "dev": true,
-          "requires": {
-            "amdefine": "1.0.1"
-          }
-        }
-      }
-    },
     "ctype": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/ctype/-/ctype-0.5.3.tgz",
diff --git a/package.json b/package.json
index ecbb0fd9d38..1400afb711b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.11",
+  "version": "2.5.12",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From aac76349e70fe0971ee24a7a1f3dada0e3459fb8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 14:03:39 -0500
Subject: [PATCH 346/911] Revert "feat: auto cache inline prop literals to
 avoid child re-render"

This reverts commit 996eb00a0a0933376c9364c2d187e2bf0512ff0d.
---
 flow/component.js                             |  3 --
 src/compiler/parser/index.js                  | 15 --------
 .../render-helpers/create-inline-computed.js  | 28 ---------------
 src/core/instance/render-helpers/index.js     |  2 --
 src/core/instance/state.js                    |  1 -
 test/unit/features/options/props.spec.js      | 34 -------------------
 6 files changed, 83 deletions(-)
 delete mode 100644 src/core/instance/render-helpers/create-inline-computed.js

diff --git a/flow/component.js b/flow/component.js
index b873bc2450b..e3326bd3d0e 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -69,7 +69,6 @@ declare interface Component {
   _staticTrees: ?Array<VNode>; // v-once cached trees
   _hasHookEvent: boolean;
   _provided: ?Object;
-  _inlineComputed: ?{ [key: string]: Watcher }; // inline computed watchers for literal props
   // _virtualComponents?: { [key: string]: Component };
 
   // private methods
@@ -131,8 +130,6 @@ declare interface Component {
   _k: (eventKeyCode: number, key: string, builtInAlias?: number | Array<number>, eventKeyName?: string) => ?boolean;
   // resolve scoped slots
   _u: (scopedSlots: ScopedSlotsData, res?: Object) => { [key: string]: Function };
-  // create / return value from inline computed
-  _a: (id: number, getter: Function) => any;
 
   // SSR specific
   _ssrNode: Function;
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 82df3d3582b..464ece1595a 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -29,20 +29,16 @@ const argRE = /:(.*)$/
 export const bindRE = /^:|^v-bind:/
 const modifierRE = /\.[^.]+/g
 
-const literalValueRE = /^(\{.*\}|\[.*\])$/
-
 const decodeHTMLCached = cached(he.decode)
 
 // configurable state
 export let warn: any
-let literalPropId
 let delimiters
 let transforms
 let preTransforms
 let postTransforms
 let platformIsPreTag
 let platformMustUseProp
-let platformIsReservedTag
 let platformGetTagNamespace
 
 type Attr = { name: string; value: string };
@@ -70,11 +66,9 @@ export function parse (
   options: CompilerOptions
 ): ASTElement | void {
   warn = options.warn || baseWarn
-  literalPropId = 0
 
   platformIsPreTag = options.isPreTag || no
   platformMustUseProp = options.mustUseProp || no
-  platformIsReservedTag = options.isReservedTag || no
   platformGetTagNamespace = options.getTagNamespace || no
 
   transforms = pluckModuleFunction(options.modules, 'transformNode')
@@ -544,15 +538,6 @@ function processAttrs (el) {
             )
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = `_a(${literalPropId++},function(){return ${value}})`
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
diff --git a/src/core/instance/render-helpers/create-inline-computed.js b/src/core/instance/render-helpers/create-inline-computed.js
deleted file mode 100644
index 8413eb0e9a2..00000000000
--- a/src/core/instance/render-helpers/create-inline-computed.js
+++ /dev/null
@@ -1,28 +0,0 @@
-/* @flow */
-
-import { noop } from 'shared/util'
-import Watcher from 'core/observer/watcher'
-
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-export function createInlineComputed (id: string, getter: Function): any {
-  const vm: Component = this
-  const watchers = vm._inlineComputed || (vm._inlineComputed = {})
-  const cached = watchers[id]
-  if (cached) {
-    return cached.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true })
-    return watchers[id].value
-  }
-}
diff --git a/src/core/instance/render-helpers/index.js b/src/core/instance/render-helpers/index.js
index ddd7458d9eb..38414a9ab53 100644
--- a/src/core/instance/render-helpers/index.js
+++ b/src/core/instance/render-helpers/index.js
@@ -10,7 +10,6 @@ import { bindObjectProps } from './bind-object-props'
 import { renderStatic, markOnce } from './render-static'
 import { bindObjectListeners } from './bind-object-listeners'
 import { resolveScopedSlots } from './resolve-slots'
-import { createInlineComputed } from './create-inline-computed'
 
 export function installRenderHelpers (target: any) {
   target._o = markOnce
@@ -28,5 +27,4 @@ export function installRenderHelpers (target: any) {
   target._e = createEmptyVNode
   target._u = resolveScopedSlots
   target._g = bindObjectListeners
-  target._a = createInlineComputed
 }
diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 01e1e8720d7..a42638a13f7 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -47,7 +47,6 @@ export function proxy (target: Object, sourceKey: string, key: string) {
 
 export function initState (vm: Component) {
   vm._watchers = []
-  vm._inlineComputed = null
   const opts = vm.$options
   if (opts.props) initProps(vm, opts.props)
   if (opts.methods) initMethods(vm, opts.methods)
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index 38a0917e74a..ae2baefff99 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -512,38 +512,4 @@ describe('Options props', () => {
       expect(`"${attr}" is a reserved attribute`).toHaveBeenWarned()
     })
   })
-
-  it('should not trigger re-render on non-changed inline literals', done => {
-    const updated = jasmine.createSpy('updated')
-    const vm = new Vue({
-      data: {
-        n: 1,
-        m: 1
-      },
-      template: `
-        <div id="app">
-          {{ n }} {{ m }} <foo :a="{ n: 1 }" :b="{ n: n }"/>
-        </div>
-      `,
-      components: {
-        foo: {
-          props: ['a', 'b'],
-          updated,
-          template: `<div>{{ a.n }} {{ b.n }}</div>`
-        }
-      }
-    }).$mount()
-
-    expect(vm.$el.textContent).toContain('1 1 1 1')
-    vm.n++ // literals that actually contain changed reactive data should trigger update
-    waitForUpdate(() => {
-      expect(vm.$el.textContent).toContain('2 1 1 2')
-      expect(updated.calls.count()).toBe(1)
-    }).then(() => {
-      vm.m++ // changing data that does not affect any literals should not trigger update
-    }).then(() => {
-      expect(vm.$el.textContent).toContain('2 2 1 2')
-      expect(updated.calls.count()).toBe(1)
-    }).then(done)
-  })
 })

From cc319bd8f7454d9d10168b4788888fb012586aad Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 14:06:50 -0500
Subject: [PATCH 347/911] build: build 2.5.13

---
 dist/vue.common.js                          |  47 +-
 dist/vue.esm.js                             |  47 +-
 dist/vue.js                                 |  47 +-
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  |  32 +-
 dist/vue.runtime.esm.js                     |  32 +-
 dist/vue.runtime.js                         |  32 +-
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 496 +------------------
 packages/vue-server-renderer/build.js       | 498 +-------------------
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  15 -
 packages/vue-template-compiler/build.js     |  15 -
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 30 insertions(+), 1243 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 37ac266cde8..662a74d3727 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -3279,7 +3279,6 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
-  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3916,32 +3915,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3958,7 +3931,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
@@ -5041,7 +5013,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.12';
+Vue$3.version = '2.5.13';
 
 /*  */
 
@@ -8972,20 +8944,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$2;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -9013,11 +8981,9 @@ function parse (
   options
 ) {
   warn$2 = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -9486,15 +9452,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 5178d8de7ed..399ecae7c4a 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -3277,7 +3277,6 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
-  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3914,32 +3913,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3956,7 +3929,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
@@ -5039,7 +5011,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.12';
+Vue$3.version = '2.5.13';
 
 /*  */
 
@@ -8970,20 +8942,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$2;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -9011,11 +8979,9 @@ function parse (
   options
 ) {
   warn$2 = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -9484,15 +9450,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
diff --git a/dist/vue.js b/dist/vue.js
index aab53519ac3..9d84c53b4be 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -3275,7 +3275,6 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
-  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3908,32 +3907,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3950,7 +3923,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
@@ -5026,7 +4998,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.12';
+Vue$3.version = '2.5.13';
 
 /*  */
 
@@ -8957,20 +8929,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$2;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -8998,11 +8966,9 @@ function parse (
   options
 ) {
   warn$2 = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -9471,15 +9437,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
diff --git a/dist/vue.min.js b/dist/vue.min.js
index ae9503cb0e0..836793b4caf 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function o(t){return"[object Object]"===In.call(t)}function a(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function s(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function c(t){var e=parseFloat(t);return isNaN(e)?t:e}function u(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function l(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function f(t,e){return Dn.call(t,e)}function p(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}function d(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n}function v(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function h(t,e){for(var n in e)t[n]=e[n];return t}function m(t){for(var e={},n=0;n<t.length;n++)t[n]&&h(e,t[n]);return e}function y(t,e,n){}function g(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var o=Array.isArray(t),a=Array.isArray(e);if(o&&a)return t.length===e.length&&t.every(function(t,n){return g(t,e[n])});if(o||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return g(t[n],e[n])})}catch(t){return!1}}function _(t,e){for(var n=0;n<t.length;n++)if(g(t[n],e))return n;return-1}function b(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}function $(t){var e=(t+"").charCodeAt(0);return 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index d4b24fd78db..84f38f8ec5e 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -3275,7 +3275,6 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
-  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3912,32 +3911,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3954,7 +3927,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
@@ -5037,7 +5009,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.12';
+Vue$3.version = '2.5.13';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 15c97598f1b..58ba539b72c 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -3273,7 +3273,6 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
-  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3910,32 +3909,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3952,7 +3925,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
@@ -5035,7 +5007,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.12';
+Vue$3.version = '2.5.13';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 00d65c2d3b6..c664f8b4c10 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
@@ -3271,7 +3271,6 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
-  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3904,32 +3903,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3946,7 +3919,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
@@ -5022,7 +4994,7 @@ Object.defineProperty(Vue$3.prototype, '$ssrContext', {
   }
 });
 
-Vue$3.version = '2.5.12';
+Vue$3.version = '2.5.13';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 9a3536aec7e..7940a211557 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.12
+ * Vue.js v2.5.13
  * (c) 2014-2017 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function o(t){return"[object Object]"===Be.call(t)}function a(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function s(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function c(t){var e=parseFloat(t);return isNaN(e)?t:e}function u(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function l(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function f(t,e){return ze.call(t,e)}function 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r}}),Wr={create:le,update:le},qr=p(function(t){return{enterClass:t+"-enter",enterToClass:t+"-enter-to",enterActiveClass:t+"-enter-active",leaveClass:t+"-leave",leaveToClass:t+"-leave-to",leaveActiveClass:t+"-leave-active"}}),Kr=rn&&!un,Xr="transition",Gr="animation",Jr="transition",Zr="transitionend",Qr="animation",Yr="animationend";Kr&&(void 0===window.ontransitionend&&void 0!==window.onwebkittransitionend&&(Jr="WebkitTransition",Zr="webkitTransitionEnd"),void 0===window.onanimationend&&void 0!==window.onwebkitanimationend&&(Qr="WebkitAnimation",Yr="webkitAnimationEnd"));var ti=rn?window.requestAnimationFrame?window.requestAnimationFrame.bind(window):setTimeout:function(t){return t()},ei=/\b(transform|all)(,|$)/,ni=function(i){function o(t){var n=k.parentNode(t);e(n)&&k.removeChild(n,t)}function a(t,r,i,o,a){if(t.isRootInsert=!a,!function(t,r,i,o){var a=t.data;if(e(a)){var u=e(t.componentInstance)&&a.keepAlive;if(e(a=a.hook)&&e(a=a.init)&&a(t,!1,i,o),e(t.componentInstance))return s(t,r),n(u)&&function(t,n,r,i){for(var o,a=t;a.componentInstance;)if(a=a.componentInstance._vnode,e(o=a.data)&&e(o=o.transition)){for(o=0;o<$.activate.length;++o)$.activate[o](Sr,a);n.push(a);break}c(r,t.elm,i)}(t,r,i,o),!0}}(t,r,i,o)){var u=t.data,f=t.children,v=t.tag;e(v)?(t.elm=t.ns?k.createElementNS(t.ns,v):k.createElement(v,t),d(t),l(t,f,r),e(u)&&p(t,r),c(i,t.elm,o)):n(t.isComment)?(t.elm=k.createComment(t.text),c(i,t.elm,o)):(t.elm=k.createTextNode(t.text),c(i,t.elm,o))}}function s(t,n){e(t.data.pendingInsert)&&(n.push.apply(n,t.data.pendingInsert),t.data.pendingInsert=null),t.elm=t.componentInstance.$el,f(t)?(p(t,n),d(t)):(Gt(t),n.push(t))}function c(t,n,r){e(t)&&(e(r)?r.parentNode===t&&k.insertBefore(t,n,r):k.appendChild(t,n))}function l(t,e,n){if(Array.isArray(e))for(var i=0;i<e.length;++i)a(e[i],n,t.elm,null,!0);else r(t.text)&&k.appendChild(t.elm,k.createTextNode(String(t.text)))}function f(t){for(;t.componentInstance;)t=t.componentInstance._vnode;return e(t.tag)}function p(t,n){for(var r=0;r<$.create.length;++r)$.create[r](Sr,t);e(w=t.data.hook)&&(e(w.create)&&w.create(Sr,t),e(w.insert)&&n.push(t))}function d(t){var n;if(e(n=t.fnScopeId))k.setAttribute(t.elm,n,"");else for(var r=t;r;)e(n=r.context)&&e(n=n.$options._scopeId)&&k.setAttribute(t.elm,n,""),r=r.parent;e(n=qn)&&n!==t.context&&n!==t.fnContext&&e(n=n.$options._scopeId)&&k.setAttribute(t.elm,n,"")}function v(t,e,n,r,i,o){for(;r<=i;++r)a(n[r],o,t,e)}function h(t){var n,r,i=t.data;if(e(i))for(e(n=i.hook)&&e(n=n.destroy)&&n(t),n=0;n<$.destroy.length;++n)$.destroy[n](t);if(e(n=t.children))for(r=0;r<t.children.length;++r)h(t.children[r])}function m(t,n,r,i){for(;r<=i;++r){var a=n[r];e(a)&&(e(a.tag)?(y(a),h(a)):o(a.elm))}}function y(t,n){if(e(n)||e(t.data)){var r,i=$.remove.length+1;for(e(n)?n.listeners+=i:n=function(t,e){function n(){0==--n.listeners&&o(t)}return n.listeners=e,n}(t.elm,i),e(r=t.componentInstance)&&e(r=r._vnode)&&e(r.data)&&y(r,n),r=0;r<$.remove.length;++r)$.remove[r](t,n);e(r=t.data.hook)&&e(r=r.remove)?r(t,n):n()}else o(t.elm)}function _(n,r,i,o,s){for(var c,u,l,f=0,p=0,d=r.length-1,h=r[0],y=r[d],_=i.length-1,b=i[0],C=i[_],w=!s;f<=d&&p<=_;)t(h)?h=r[++f]:t(y)?y=r[--d]:Jt(h,b)?(g(h,b,o),h=r[++f],b=i[++p]):Jt(y,C)?(g(y,C,o),y=r[--d],C=i[--_]):Jt(h,C)?(g(h,C,o),w&&k.insertBefore(n,h.elm,k.nextSibling(y.elm)),h=r[++f],C=i[--_]):Jt(y,b)?(g(y,b,o),w&&k.insertBefore(n,y.elm,h.elm),y=r[--d],b=i[++p]):(t(c)&&(c=Zt(r,f,d)),t(u=e(b.key)?c[b.key]:function(t,n,r,i){for(var o=r;o<i;o++){var a=n[o];if(e(a)&&Jt(t,a))return o}}(b,r,f,d))?a(b,o,n,h.elm):Jt(l=r[u],b)?(g(l,b,o),r[u]=void 0,w&&k.insertBefore(n,l.elm,h.elm)):a(b,o,n,h.elm),b=i[++p]);f>d?v(n,t(i[_+1])?null:i[_+1].elm,i,p,_,o):p>_&&m(0,r,f,d)}function g(r,i,o,a){if(r!==i){var s=i.elm=r.elm;if(n(r.isAsyncPlaceholder))e(i.asyncFactory.resolved)?C(r.elm,i,o):i.isAsyncPlaceholder=!0;else if(n(i.isStatic)&&n(r.isStatic)&&i.key===r.key&&(n(i.isCloned)||n(i.isOnce)))i.componentInstance=r.componentInstance;else{var c,u=i.data;e(u)&&e(c=u.hook)&&e(c=c.prepatch)&&c(r,i);var l=r.children,p=i.children;if(e(u)&&f(i)){for(c=0;c<$.update.length;++c)$.update[c](r,i);e(c=u.hook)&&e(c=c.update)&&c(r,i)}t(i.text)?e(l)&&e(p)?l!==p&&_(s,l,p,o,a):e(p)?(e(r.text)&&k.setTextContent(s,""),v(s,null,p,0,p.length-1,o)):e(l)?m(0,l,0,l.length-1):e(r.text)&&k.setTextContent(s,""):r.text!==i.text&&k.setTextContent(s,i.text),e(u)&&e(c=u.hook)&&e(c=c.postpatch)&&c(r,i)}}}function b(t,r,i){if(n(i)&&e(t.parent))t.parent.data.pendingInsert=r;else for(var o=0;o<r.length;++o)r[o].data.hook.insert(r[o])}function C(t,r,i,o){var a,c=r.tag,u=r.data,f=r.children;if(o=o||u&&u.pre,r.elm=t,n(r.isComment)&&e(r.asyncFactory))return r.isAsyncPlaceholder=!0,!0;if(e(u)&&(e(a=u.hook)&&e(a=a.init)&&a(r,!0),e(a=r.componentInstance)))return s(r,i),!0;if(e(c)){if(e(f))if(t.hasChildNodes())if(e(a=u)&&e(a=a.domProps)&&e(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var d=!0,v=t.firstChild,h=0;h<f.length;h++){if(!v||!C(v,f[h],i,o)){d=!1;break}v=v.nextSibling}if(!d||v)return!1}else l(r,f,i);if(e(u)){var m=!1;for(var y in u)if(!O(y)){m=!0,p(r,i);break}!m&&u.class&&X(u.class)}}else t.data!==r.text&&(t.data=r.text);return!0}var w,A,$={},x=i.modules,k=i.nodeOps;for(w=0;w<Er.length;++w)for($[Er[w]]=[],A=0;A<x.length;++A)e(x[A][Er[w]])&&$[Er[w]].push(x[A][Er[w]]);var O=u("attrs,class,staticClass,staticStyle,key");return function(r,i,o,s,c,u){if(!t(i)){var l=!1,p=[];if(t(r))l=!0,a(i,p,c,u);else{var d=e(r.nodeType);if(!d&&Jt(r,i))g(r,i,p,s);else{if(d){if(1===r.nodeType&&r.hasAttribute(Ze)&&(r.removeAttribute(Ze),o=!0),n(o)&&C(r,i,p))return b(i,p,!0),r;r=function(t){return new xn(k.tagName(t).toLowerCase(),{},[],void 0,t)}(r)}var v=r.elm,y=k.parentNode(v);if(a(i,p,v._leaveCb?null:y,k.nextSibling(v)),e(i.parent))for(var _=i.parent,w=f(i);_;){for(var A=0;A<$.destroy.length;++A)$.destroy[A](_);if(_.elm=i.elm,w){for(var x=0;x<$.create.length;++x)$.create[x](Sr,_);var O=_.data.hook.insert;if(O.merged)for(var S=1;S<O.fns.length;S++)O.fns[S]()}else Gt(_);_=_.parent}e(y)?m(0,[r],0,0):e(r.tag)&&h(r)}}return b(i,p,l),i.elm}e(r)&&h(r)}}({nodeOps:kr,modules:[Dr,Lr,Mr,Fr,Wr,rn?{create:xe,activate:xe,remove:function(t,e){!0!==t.data.show?we(t,e):e()}}:{}].concat(Tr)});un&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&Te(t,"input")});var ri={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?Q(n,"postpatch",function(){ri.componentUpdated(t,e,n)}):ke(t,e,n.context),t._vOptions=[].map.call(t.options,Ee)):("textarea"===n.tag||xr(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("change",Ie),fn||(t.addEventListener("compositionstart",je),t.addEventListener("compositionend",Ie)),un&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){ke(t,e,n.context);var r=t._vOptions,i=t._vOptions=[].map.call(t.options,Ee);if(i.some(function(t,e){return!_(t,r[e])})){(t.multiple?e.value.some(function(t){return Se(t,i)}):e.value!==e.oldValue&&Se(e.value,i))&&Te(t,"change")}}}},ii={model:ri,show:{bind:function(t,e,n){var r=e.value,i=(n=De(n)).data&&n.data.transition,o=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&i?(n.data.show=!0,Ce(n,function(){t.style.display=o})):t.style.display=r?o:"none"},update:function(t,e,n){var r=e.value;if(r!==e.oldValue){(n=De(n)).data&&n.data.transition?(n.data.show=!0,r?Ce(n,function(){t.style.display=t.__vOriginalDisplay}):we(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none"}},unbind:function(t,e,n,r,i){i||(t.style.display=t.__vOriginalDisplay)}}},oi={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]},ai={name:"transition",props:oi,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||rt(t)})).length){var i=this.mode,o=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return o;var a=Le(o);if(!a)return o;if(this._leaving)return Ne(t,o);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:r(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Pe(this),u=this._vnode,l=Le(u);if(a.data.directives&&a.data.directives.some(function(t){return"show"===t.name})&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!rt(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=h({},c);if("out-in"===i)return this._leaving=!0,Q(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ne(t,o);if("in-out"===i){if(rt(a))return u;var p,d=function(){p()};Q(c,"afterEnter",d),Q(c,"enterCancelled",d),Q(f,"delayLeave",function(t){p=t})}}return o}}},si=h({tag:String,moveClass:String},oi);delete si.mode;var ci={Transition:ai,TransitionGroup:{props:si,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,i=this.$slots.default||[],o=this.children=[],a=Pe(this),s=0;s<i.length;s++){var c=i[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(o.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,o)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Me),t.forEach(Fe),t.forEach(Ue),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;he(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Zr,n._moveCb=function t(r){r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Zr,t),n._moveCb=null,me(n,e))})}}))},methods:{hasMove:function(t,e){if(!Kr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){pe(n,t)}),fe(n,e),n.style.display="none",this.$el.appendChild(n);var r=_e(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return Ut.config.mustUseProp=function(t,e,n){return"value"===n&&dr(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},Ut.config.isReservedTag=Ar,Ut.config.isReservedAttr=pr,Ut.config.getTagNamespace=function(t){return wr(t)?"svg":"math"===t?"math":void 0},Ut.config.isUnknownElement=function(t){if(!rn)return!0;if(Ar(t))return!1;if(t=t.toLowerCase(),null!=$r[t])return $r[t];var e=document.createElement(t);return t.indexOf("-")>-1?$r[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:$r[t]=/HTMLUnknownElement/.test(e.toString())},h(Ut.options.directives,ii),h(Ut.options.components,ci),Ut.prototype.__patch__=rn?ni:y,Ut.prototype.$mount=function(t,e){return t=t&&rn?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,function(t,e,n){t.$el=e,t.$options.render||(t.$options.render=On),vt(t,"beforeMount");var r;return r=function(){t._update(t._render(),n)},new tr(t,r,y,null,!0),n=!1,null==t.$vnode&&(t._isMounted=!0,vt(t,"mounted")),t}(this,t,e)},Ut.nextTick(function(){tn.devtools&&gn&&gn.emit("init",Ut)},0),Ut});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 4fc8109c9be..56d94725856 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -592,24 +592,6 @@ function def (obj, key, val, enumerable) {
   });
 }
 
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
 /*  */
 
 
@@ -945,16 +927,6 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
-var targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -1851,10 +1823,7 @@ function logError (err, vm, info) {
 /* globals MessageChannel */
 
 var callbacks = [];
-var pending = false;
-
 function flushCallbacks () {
-  pending = false;
   var copies = callbacks.slice(0);
   callbacks.length = 0;
   for (var i = 0; i < copies.length; i++) {
@@ -1862,61 +1831,33 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
 // Determine (macro) Task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
 if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
+  
 } else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
-  var port = channel.port2;
   channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
+  
 } else {
   /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
+  
 }
 
 // Determine MicroTask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
+  
 } else {
   // fallback to macro
-  microTimerFunc = macroTimerFunc;
+  
 }
 
 /**
@@ -1924,36 +1865,6 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
  * the changes are queued using a Task instead of a MicroTask.
  */
 
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
 /*  */
 
 /*  */
@@ -3637,20 +3548,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -3678,11 +3585,9 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -4151,15 +4056,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -6162,33 +6058,6 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
 
 {
   var perf = inBrowser && window.performance;
@@ -6709,97 +6578,9 @@ function callHook (vm, hook) {
 /*  */
 
 
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index$1 = 0;
 
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index$1 = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index$1 = 0; index$1 < queue.length; index$1++) {
-    watcher = queue[index$1];
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if ("development" !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
-    }
-  }
-}
 
+var activatedChildren = [];
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -6811,252 +6592,14 @@ function queueActivatedComponent (vm) {
   activatedChildren.push(vm);
 }
 
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
 /**
  * Push a watcher into the watcher queue.
  * Jobs with duplicate IDs will be skipped unless it's
  * pushed when the queue is being flushed.
  */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index$1 && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
 
 /*  */
 
-var uid$2 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$2; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = function () {};
-      "development" !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this$1.deps[i].removeSub(this$1);
-    }
-    this.active = false;
-  }
-};
-
 /*  */
 
 /*  */
@@ -7441,32 +6984,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -7483,7 +7000,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 7006632ffc1..2b1afdc9801 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -594,24 +594,6 @@ function def (obj, key, val, enumerable) {
   });
 }
 
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
 /*  */
 
 
@@ -947,16 +929,6 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
-var targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -1857,10 +1829,7 @@ function logError (err, vm, info) {
 /* globals MessageChannel */
 
 var callbacks = [];
-var pending = false;
-
 function flushCallbacks () {
-  pending = false;
   var copies = callbacks.slice(0);
   callbacks.length = 0;
   for (var i = 0; i < copies.length; i++) {
@@ -1868,61 +1837,33 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
 // Determine (macro) Task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
 if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
+  
 } else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
-  var port = channel.port2;
   channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
+  
 } else {
   /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
+  
 }
 
 // Determine MicroTask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
+  
 } else {
   // fallback to macro
-  microTimerFunc = macroTimerFunc;
+  
 }
 
 /**
@@ -1930,36 +1871,6 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
  * the changes are queued using a Task instead of a MicroTask.
  */
 
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
 /*  */
 
 /*  */
@@ -3380,20 +3291,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -3421,11 +3328,9 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -3894,15 +3799,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -5905,33 +5801,6 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
 
 if (process.env.NODE_ENV !== 'production') {
   var perf = inBrowser && window.performance;
@@ -6454,97 +6323,9 @@ function callHook (vm, hook) {
 /*  */
 
 
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index$1 = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index$1 = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index$1 = 0; index$1 < queue.length; index$1++) {
-    watcher = queue[index$1];
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
-    }
-  }
-}
 
+var activatedChildren = [];
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -6556,254 +6337,14 @@ function queueActivatedComponent (vm) {
   activatedChildren.push(vm);
 }
 
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
 /**
  * Push a watcher into the watcher queue.
  * Jobs with duplicate IDs will be skipped unless it's
  * pushed when the queue is being flushed.
  */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index$1 && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
 
 /*  */
 
-var uid$2 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$2; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = function () {};
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this$1.deps[i].removeSub(this$1);
-    }
-    this.active = false;
-  }
-};
-
 /*  */
 
 /*  */
@@ -7188,32 +6729,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -7230,7 +6745,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index b978f57f151..d92e9d0d9f1 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.12",
+  "version": "2.5.13",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index d05bc5aa413..9c7d2679c0a 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -2666,20 +2666,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -2707,11 +2703,9 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -3180,15 +3174,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index faa56b58951..29602de7eb7 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -2268,20 +2268,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn$1;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -2309,11 +2305,9 @@ function parse (
   options
 ) {
   warn$1 = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -2782,15 +2776,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 3430230c2ec..51fbc9c276c 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.12",
+  "version": "2.5.13",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From d982e344b39391fe91b6dd91d51b2f0310a45e77 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 14:06:52 -0500
Subject: [PATCH 348/911] build: release 2.5.13

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 1116df0f24c..24a0ab9d3a6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.12",
+  "version": "2.5.13",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 1400afb711b..b20976a2555 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.12",
+  "version": "2.5.13",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 472a2896bd4f156be168edfecb6ac432b853beb4 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Wed, 20 Dec 2017 04:47:53 +0800
Subject: [PATCH 349/911] feat(weex): adjust framework entry APIs and add flow
 annotations (#7272)

1. Remove the "init", "reset", "getRoot" and "receiveTasks" APIs, which
are already implemented in the new version of "weex-js-runtime".
2. Use "createInstanceContext" instead of "createInstance". Vue only
needs to prepare the instance context and no longer execute the js
code. The js code will be executed by native.
3. Add flow type declarations and annotations.
---
 flow/weex.js                          |  73 ++++++++++++
 src/platforms/weex/entry-framework.js | 154 ++++++++------------------
 test/weex/helpers/index.js            |  13 ++-
 test/weex/runtime/framework.spec.js   |  64 +----------
 4 files changed, 134 insertions(+), 170 deletions(-)

diff --git a/flow/weex.js b/flow/weex.js
index 2f32bf5c699..cef6f0ba2f7 100644
--- a/flow/weex.js
+++ b/flow/weex.js
@@ -1,6 +1,79 @@
 // global flag to be compiled away
 declare var __WEEX__: boolean;
 
+declare type Weex = {
+  config: Object;
+  document: WeexDocument;
+  requireModule: (name: string) => Object | void;
+  supports: (condition: string) => boolean | void;
+  isRegisteredModule: (name: string, method?: string) => boolean;
+  isRegisteredComponent: (name: string) => boolean;
+};
+
+declare interface WeexDocument {
+  id: string | number;
+  URL: string;
+  taskCenter: Object;
+
+  open: () => void;
+  close: () => void;
+  createElement: (tagName: string, props?: Object) => WeexElement;
+  createComment: (text: string) => Object;
+  fireEvent: (type: string) => void;
+  destroy: () => void;
+};
+
+declare interface WeexElement {
+  nodeType: number;
+  nodeId: string | number;
+  type: string;
+  ref: string | number;
+  text?: string;
+
+  parentNode: WeexElement | void;
+  children: Array<WeexElement>;
+  previousSibling: WeexElement | void;
+  nextSibling: WeexElement | void;
+
+  appendChild: (node: WeexElement) => void;
+  removeChild: (node: WeexElement, preserved?: boolean) => void;
+  insertBefore: (node: WeexElement, before: WeexElement) => void;
+  insertAfter: (node: WeexElement, after: WeexElement) => void;
+  setAttr: (key: string, value: any, silent?: boolean) => void;
+  setAttrs: (attrs: Object, silent?: boolean) => void;
+  setStyle: (key: string, value: any, silent?: boolean) => void;
+  setStyles: (attrs: Object, silent?: boolean) => void;
+  addEvent: (type: string, handler: Function, args?: Array<any>) => void;
+  removeEvent: (type: string) => void;
+  fireEvent: (type: string) => void;
+  destroy: () => void;
+}
+
+declare type WeexInstanceOption = {
+  instanceId: string;
+  config: Object;
+  document: WeexDocument;
+  Vue?: GlobalAPI;
+  app?: Component;
+  data?: Object;
+};
+
+declare type WeexRuntimeContext = {
+  weex: Weex;
+  service: Object;
+  BroadcastChannel?: Function;
+};
+
+declare type WeexInstanceContext = {
+  Vue: GlobalAPI;
+
+  // DEPRECATED
+  setTimeout?: Function;
+  clearTimeout?: Function;
+  setInterval?: Function;
+  clearInterval?: Function;
+};
+
 declare type WeexCompilerOptions = CompilerOptions & {
   // whether to compile special template for <recycle-list>
   recyclable?: boolean;
diff --git a/src/platforms/weex/entry-framework.js b/src/platforms/weex/entry-framework.js
index 2c281970699..a23775d4db5 100644
--- a/src/platforms/weex/entry-framework.js
+++ b/src/platforms/weex/entry-framework.js
@@ -1,127 +1,89 @@
+/* @flow */
+
 // this will be preserved during build
+// $flow-disable-line
 const VueFactory = require('./factory')
 
-const instances = {}
-
-/**
- * Prepare framework config.
- * Nothing need to do actually, just an interface provided to weex runtime.
- */
-export function init () {}
-
-/**
- * Reset framework config and clear all registrations.
- */
-export function reset () {
-  clear(instances)
-}
+const instanceOptions: { [key: string]: WeexInstanceOption } = {}
 
 /**
- * Delete all keys of an object.
- * @param {object} obj
+ * Create instance context.
  */
-function clear (obj) {
-  for (const key in obj) {
-    delete obj[key]
+export function createInstanceContext (
+  instanceId: string,
+  runtimeContext: WeexRuntimeContext,
+  data: Object = {}
+): WeexInstanceContext {
+  const weex: Weex = runtimeContext.weex
+  const instance: WeexInstanceOption = instanceOptions[instanceId] = {
+    instanceId,
+    config: weex.config,
+    document: weex.document,
+    data
   }
-}
-
-/**
- * Create an instance with id, code, config and external data.
- * @param {string} instanceId
- * @param {string} appCode
- * @param {object} config
- * @param {object} data
- * @param {object} env { info, config, services }
- */
-export function createInstance (
-  instanceId,
-  appCode = '',
-  config = {},
-  data,
-  env = {}
-) {
-  const weex = env.weex
-  const document = weex.document
-  const instance = instances[instanceId] = {
-    instanceId, config, data,
-    document
-  }
-
-  const timerAPIs = getInstanceTimer(instanceId, weex.requireModule)
 
   // Each instance has a independent `Vue` module instance
   const Vue = instance.Vue = createVueModuleInstance(instanceId, weex)
 
-  // The function which create a closure the JS Bundle will run in.
-  // It will declare some instance variables like `Vue`, HTML5 Timer APIs etc.
-  const instanceVars = Object.assign({
-    Vue,
-    weex
-  }, timerAPIs, env.services)
-
-  appCode = `(function(global){ \n${appCode}\n })(Object.create(this))`
-  callFunction(instanceVars, appCode)
+  // DEPRECATED
+  const timerAPIs = getInstanceTimer(instanceId, weex.requireModule)
 
-  return instance
+  const instanceContext = Object.assign({ Vue }, timerAPIs)
+  Object.freeze(instanceContext)
+  return instanceContext
 }
 
 /**
  * Destroy an instance with id. It will make sure all memory of
  * this instance released and no more leaks.
- * @param {string} instanceId
  */
-export function destroyInstance (instanceId) {
-  const instance = instances[instanceId]
+export function destroyInstance (instanceId: string): void {
+  const instance = instanceOptions[instanceId]
   if (instance && instance.app instanceof instance.Vue) {
-    instance.document.destroy()
-    instance.app.$destroy()
+    try {
+      instance.app.$destroy()
+      instance.document.destroy()
+    } catch (e) {}
     delete instance.document
     delete instance.app
   }
-  delete instances[instanceId]
+  delete instanceOptions[instanceId]
 }
 
 /**
  * Refresh an instance with id and new top-level component data.
  * It will use `Vue.set` on all keys of the new data. So it's better
  * define all possible meaningful keys when instance created.
- * @param {string} instanceId
- * @param {object} data
  */
-export function refreshInstance (instanceId, data) {
-  const instance = instances[instanceId]
+export function refreshInstance (
+  instanceId: string,
+  data: Object
+): Error | void {
+  const instance = instanceOptions[instanceId]
   if (!instance || !(instance.app instanceof instance.Vue)) {
     return new Error(`refreshInstance: instance ${instanceId} not found!`)
   }
-  for (const key in data) {
-    instance.Vue.set(instance.app, key, data[key])
+  if (instance.Vue && instance.Vue.set) {
+    for (const key in data) {
+      instance.Vue.set(instance.app, key, data[key])
+    }
   }
   // Finally `refreshFinish` signal needed.
   instance.document.taskCenter.send('dom', { action: 'refreshFinish' }, [])
 }
 
-/**
- * Get the JSON object of the root element.
- * @param {string} instanceId
- */
-export function getRoot (instanceId) {
-  const instance = instances[instanceId]
-  if (!instance || !(instance.app instanceof instance.Vue)) {
-    return new Error(`getRoot: instance ${instanceId} not found!`)
-  }
-  return instance.app.$el.toJSON()
-}
-
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
-function createVueModuleInstance (instanceId, weex) {
+function createVueModuleInstance (
+  instanceId: string,
+  weex: Weex
+): GlobalAPI {
   const exports = {}
   VueFactory(exports, weex.document)
   const Vue = exports.Vue
 
-  const instance = instances[instanceId]
+  const instance = instanceOptions[instanceId]
 
   // patch reserved tag detection to account for dynamically registered
   // components
@@ -161,7 +123,7 @@ function createVueModuleInstance (instanceId, weex) {
     mounted () {
       const options = this.$options
       // root component (vm)
-      if (options.el && weex.document) {
+      if (options.el && weex.document && instance.app === this) {
         try {
           // Send "createFinish" signal to native.
           weex.document.taskCenter.send('dom', { action: 'createFinish' }, [])
@@ -185,16 +147,17 @@ function createVueModuleInstance (instanceId, weex) {
 }
 
 /**
+ * DEPRECATED
  * Generate HTML5 Timer APIs. An important point is that the callback
  * will be converted into callback id when sent to native. So the
  * framework can make sure no side effect of the callback happened after
  * an instance destroyed.
- * @param  {[type]} instanceId   [description]
- * @param  {[type]} moduleGetter [description]
- * @return {[type]}              [description]
  */
-function getInstanceTimer (instanceId, moduleGetter) {
-  const instance = instances[instanceId]
+function getInstanceTimer (
+  instanceId: string,
+  moduleGetter: Function
+): Object {
+  const instance = instanceOptions[instanceId]
   const timer = moduleGetter('timer')
   const timerAPIs = {
     setTimeout: (...args) => {
@@ -222,22 +185,3 @@ function getInstanceTimer (instanceId, moduleGetter) {
   }
   return timerAPIs
 }
-
-/**
- * Call a new function body with some global objects.
- * @param  {object} globalObjects
- * @param  {string} code
- * @return {any}
- */
-function callFunction (globalObjects, body) {
-  const globalKeys = []
-  const globalValues = []
-  for (const key in globalObjects) {
-    globalKeys.push(key)
-    globalValues.push(globalObjects[key])
-  }
-  globalKeys.push(body)
-
-  const result = new Function(...globalKeys)
-  return result(...globalValues)
-}
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index 6ed807cb867..fca2e1eafbc 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -124,7 +124,7 @@ function omitUseless (object) {
 }
 
 export function getRoot (instance) {
-  return omitUseless(instance.document.body.toJSON())
+  return omitUseless(instance.$getRoot())
 }
 
 // Get all binding events in the instance
@@ -141,7 +141,7 @@ export function getEvents (instance) {
       node.children.forEach(recordEvent)
     }
   }
-  recordEvent(instance.document.body.toJSON())
+  recordEvent(instance.$getRoot())
   return events
 }
 
@@ -158,9 +158,14 @@ export function createInstance (id, code, ...args) {
   context.registerModules({
     timer: ['setTimeout', 'setInterval']
   })
-  const instance = context.createInstance(id, `// { "framework": "Vue" }\n${code}`, ...args)
+  const instance = context.createInstance(id, `// { "framework": "Vue" }\n${code}`, ...args) || {}
+  instance.document = context.getDocument(id)
+  instance.$getRoot = () => context.getRoot(id)
   instance.$refresh = (data) => context.refreshInstance(id, data)
-  instance.$destroy = () => context.destroyInstance(id)
+  instance.$destroy = () => {
+    delete instance.document
+    context.destroyInstance(id)
+  }
   instance.$triggerHook = (id, hook, args) => {
     instance.document.taskCenter.triggerHook(id, 'lifecycle', hook, { args })
   }
diff --git a/test/weex/runtime/framework.spec.js b/test/weex/runtime/framework.spec.js
index 5a8daed4615..ac74680c41b 100644
--- a/test/weex/runtime/framework.spec.js
+++ b/test/weex/runtime/framework.spec.js
@@ -1,4 +1,3 @@
-import * as framework from '../../../packages/weex-vue-framework'
 import { getRoot, createInstance } from '../helpers/index'
 
 describe('framework APIs', () => {
@@ -26,17 +25,17 @@ describe('framework APIs', () => {
       new Vue({
         render: function (createElement) {
           return createElement('div', {}, [
-            createElement('text', { attrs: { value: JSON.stringify(this.$getConfig()) }}, [])
+            createElement('text', { attrs: { value: JSON.stringify(weex.config) }}, [])
           ])
         },
         el: "body"
       })
-    `, { bundleUrl: 'http://example.com/', a: 1, b: 2 })
+    `, { bundleType: 'Vue', bundleUrl: 'http://example.com/', a: 1, b: 2 })
     expect(getRoot(instance)).toEqual({
       type: 'div',
       children: [{
         type: 'text',
-        attr: { value: '{"bundleUrl":"http://example.com/","a":1,"b":2,"env":{},"bundleType":"Vue"}' }
+        attr: { value: '{"bundleType":"Vue","bundleUrl":"http://example.com/","a":1,"b":2,"env":{}}' }
       }]
     })
   })
@@ -122,63 +121,6 @@ describe('framework APIs', () => {
     })
   })
 
-  it('getRoot', () => {
-    const id = String(Date.now() * Math.random())
-    const instance = createInstance(id, `
-      new Vue({
-        data: {
-          x: 'Hello'
-        },
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: this.x }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `)
-
-    let root = framework.getRoot(id)
-    expect(root.ref).toEqual('_root')
-    expect(root.type).toEqual('div')
-    expect(root.children.length).toEqual(1)
-    expect(root.children[0].type).toEqual('text')
-    expect(root.children[0].attr).toEqual({ value: 'Hello' })
-    framework.destroyInstance(instance.id)
-
-    root = framework.getRoot(instance.id)
-    expect(root instanceof Error).toBe(true)
-    expect(root).toMatch(/getRoot/)
-    expect(root).toMatch(/not found/)
-  })
-
-  it('vm.$getConfig', () => {
-    const id = String(Date.now() * Math.random())
-    global.WXEnvironment = {
-      weexVersion: '0.10.0',
-      platform: 'Node.js'
-    }
-    const instance = createInstance(id, `
-      new Vue({
-        render: function (createElement) {
-          return createElement('div', {}, [
-            createElement('text', { attrs: { value: JSON.stringify(this.$getConfig()) }}, [])
-          ])
-        },
-        el: "body"
-      })
-    `, { bundleUrl: 'http://whatever.com/x.js' })
-    expect(JSON.parse(getRoot(instance).children[0].attr.value)).toEqual({
-      bundleUrl: 'http://whatever.com/x.js',
-      bundleType: 'Vue',
-      env: {
-        weexVersion: '0.10.0',
-        platform: 'Node.js'
-      }
-    })
-    delete global.WXEnvironment
-  })
-
   it('registering global assets', () => {
     const id = String(Date.now() * Math.random())
     const instance = createInstance(id, `

From 7cc0b559e9e57fcb3baeae5d8d4c8964aa335b5e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Dec 2017 16:19:07 -0500
Subject: [PATCH 350/911] feat(weex): update new syntax for <recycle-list>

---
 src/compiler/parser/index.js                  |  9 +++-
 .../compiler/modules/recycle-list/index.js    |  2 +
 .../modules/recycle-list/recycle-list.js      | 49 +++++++++++++++++++
 test/weex/cases/recycle-list/attrs.vdom.js    |  4 +-
 test/weex/cases/recycle-list/attrs.vue        |  4 +-
 .../weex/cases/recycle-list/classname.vdom.js |  4 +-
 test/weex/cases/recycle-list/classname.vue    |  4 +-
 .../components/stateful-lifecycle.vdom.js     |  4 +-
 .../components/stateful-lifecycle.vue         |  4 +-
 .../components/stateful-v-model.vdom.js       |  4 +-
 .../components/stateful-v-model.vue           |  4 +-
 .../recycle-list/components/stateful.vdom.js  |  4 +-
 .../recycle-list/components/stateful.vue      |  4 +-
 .../stateless-multi-components.vdom.js        |  6 +--
 .../components/stateless-multi-components.vue |  6 +--
 .../components/stateless-with-props.vdom.js   |  4 +-
 .../components/stateless-with-props.vue       |  4 +-
 .../recycle-list/components/stateless.vdom.js |  4 +-
 .../recycle-list/components/stateless.vue     |  4 +-
 .../cases/recycle-list/inline-style.vdom.js   |  4 +-
 test/weex/cases/recycle-list/inline-style.vue |  4 +-
 .../weex/cases/recycle-list/text-node.vdom.js |  4 +-
 test/weex/cases/recycle-list/text-node.vue    |  4 +-
 .../weex/cases/recycle-list/v-else-if.vdom.js |  4 +-
 test/weex/cases/recycle-list/v-else-if.vue    |  4 +-
 test/weex/cases/recycle-list/v-else.vdom.js   |  4 +-
 test/weex/cases/recycle-list/v-else.vue       |  4 +-
 .../cases/recycle-list/v-for-iterator.vdom.js |  4 +-
 .../cases/recycle-list/v-for-iterator.vue     |  4 +-
 test/weex/cases/recycle-list/v-for.vdom.js    |  4 +-
 test/weex/cases/recycle-list/v-for.vue        |  4 +-
 test/weex/cases/recycle-list/v-if.vdom.js     |  4 +-
 test/weex/cases/recycle-list/v-if.vue         |  4 +-
 .../cases/recycle-list/v-on-inline.vdom.js    |  4 +-
 test/weex/cases/recycle-list/v-on-inline.vue  |  4 +-
 test/weex/cases/recycle-list/v-on.vdom.js     |  4 +-
 test/weex/cases/recycle-list/v-on.vue         |  4 +-
 test/weex/compiler/append.spec.js             |  4 +-
 38 files changed, 131 insertions(+), 73 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/recycle-list.js

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 464ece1595a..ba1b726870a 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -360,7 +360,14 @@ export function processFor (el: ASTElement) {
   }
 }
 
-export function parseFor (exp: string): ?Object {
+type ForParseResult = {
+  for: string;
+  alias: string;
+  iterator1?: string;
+  iterator2?: string;
+};
+
+export function parseFor (exp: string): ?ForParseResult {
   const inMatch = exp.match(forAliasRE)
   if (!inMatch) return
   const res = {}
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index d163c2d8547..1b85a45f993 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import { preTransformRecycleList } from './recycle-list'
 import { postTransformComponent } from './component'
 import { postTransformComponentRoot } from './component-root'
 import { postTransformText } from './text'
@@ -17,6 +18,7 @@ function shouldCompile (el: ASTElement, options: WeexCompilerOptions) {
 
 function preTransformNode (el: ASTElement, options: WeexCompilerOptions) {
   if (el.tag === 'recycle-list') {
+    preTransformRecycleList(el, options)
     currentRecycleList = el
   }
   if (shouldCompile(el, options)) {
diff --git a/src/platforms/weex/compiler/modules/recycle-list/recycle-list.js b/src/platforms/weex/compiler/modules/recycle-list/recycle-list.js
new file mode 100644
index 00000000000..22e3b5d5525
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/recycle-list.js
@@ -0,0 +1,49 @@
+/* @flow */
+
+import { parseFor } from 'compiler/parser/index'
+import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
+
+/**
+ * Map the following syntax to corresponding attrs:
+ *
+ * <recycle-list for="(item, i) in longList" switch="cellType">
+ *   <cell-slot case="A"> ... </cell-slot>
+ *   <cell-slot case="B"> ... </cell-slot>
+ * </recycle-list>
+ */
+
+export function preTransformRecycleList (
+  el: ASTElement,
+  options: WeexCompilerOptions
+) {
+  const exp = getAndRemoveAttr(el, 'for')
+  if (!exp) {
+    if (options.warn) {
+      options.warn(`Invalid <recycle-list> syntax: missing "for" expression.`)
+    }
+    return
+  }
+
+  const res = parseFor(exp)
+  if (!res) {
+    if (options.warn) {
+      options.warn(`Invalid <recycle-list> syntax: ${exp}.`)
+    }
+    return
+  }
+
+  addRawAttr(el, ':list-data', res.for)
+  addRawAttr(el, 'alias', res.alias)
+  if (res.iterator2) {
+    // (item, key, index) for object iteration
+    // is this even supported?
+    addRawAttr(el, 'index', res.iterator2)
+  } else if (res.iterator1) {
+    addRawAttr(el, 'index', res.iterator1)
+  }
+
+  const switchKey = getAndRemoveAttr(el, 'switch')
+  if (switchKey) {
+    addRawAttr(el, 'switch', switchKey)
+  }
+}
diff --git a/test/weex/cases/recycle-list/attrs.vdom.js b/test/weex/cases/recycle-list/attrs.vdom.js
index 0d15ed8341b..ccce367fc34 100644
--- a/test/weex/cases/recycle-list/attrs.vdom.js
+++ b/test/weex/cases/recycle-list/attrs.vdom.js
@@ -7,12 +7,12 @@
       { type: 'A', count: 2, source: 'http://whatever.com/y.png' },
       { type: 'A', count: 3, source: 'http://whatever.com/z.png' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/attrs.vue b/test/weex/cases/recycle-list/attrs.vue
index b9de8f9e711..1e2d0318af6 100644
--- a/test/weex/cases/recycle-list/attrs.vue
+++ b/test/weex/cases/recycle-list/attrs.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <image resize="cover" :src="item.source">
       <text lines="3" v-bind:count="item.count"></text>
     </cell-slot>
diff --git a/test/weex/cases/recycle-list/classname.vdom.js b/test/weex/cases/recycle-list/classname.vdom.js
index 45fcff829e3..e9280e0e1bf 100644
--- a/test/weex/cases/recycle-list/classname.vdom.js
+++ b/test/weex/cases/recycle-list/classname.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A', color: 'red' },
       { type: 'A', color: 'blue' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     style: {
       backgroundColor: '#FF6600'
     },
diff --git a/test/weex/cases/recycle-list/classname.vue b/test/weex/cases/recycle-list/classname.vue
index afa8c9f8900..beca441fa39 100644
--- a/test/weex/cases/recycle-list/classname.vue
+++ b/test/weex/cases/recycle-list/classname.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A" class="cell">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A" class="cell">
       <text :class="['text', item.color]">content</text>
     </cell-slot>
   </recycle-list>
diff --git a/test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js b/test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js
index 5264259f14c..45268ffefad 100644
--- a/test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful-lifecycle.vdom.js
@@ -6,12 +6,12 @@
       { type: 'X' },
       { type: 'X' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'X' },
+    attr: { append: 'tree', case: 'X' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateful-lifecycle.vue b/test/weex/cases/recycle-list/components/stateful-lifecycle.vue
index c01a96b6d13..97673b7bb93 100644
--- a/test/weex/cases/recycle-list/components/stateful-lifecycle.vue
+++ b/test/weex/cases/recycle-list/components/stateful-lifecycle.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="X">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="X">
       <lifecycle></lifecycle>
     </cell-slot>
   </recycle-list>
diff --git a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
index 97f055e73fb..88af1438c24 100644
--- a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateful-v-model.vue b/test/weex/cases/recycle-list/components/stateful-v-model.vue
index 7a998a8bbb3..3b7cc61a1f0 100644
--- a/test/weex/cases/recycle-list/components/stateful-v-model.vue
+++ b/test/weex/cases/recycle-list/components/stateful-v-model.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <editor message="No binding"></editor>
     </cell-slot>
   </recycle-list>
diff --git a/test/weex/cases/recycle-list/components/stateful.vdom.js b/test/weex/cases/recycle-list/components/stateful.vdom.js
index f716bc1ad0a..bfa45455b30 100644
--- a/test/weex/cases/recycle-list/components/stateful.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A', number: 24 },
       { type: 'A', number: 42 }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateful.vue b/test/weex/cases/recycle-list/components/stateful.vue
index b6882ad355b..797f3f5681a 100644
--- a/test/weex/cases/recycle-list/components/stateful.vue
+++ b/test/weex/cases/recycle-list/components/stateful.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <counter :start="item.number"></counter>
       <text>other</text>
     </cell-slot>
diff --git a/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
index 4d91101a82e..9c1f1b21b63 100644
--- a/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
@@ -7,12 +7,12 @@
       { type: 'B', poster: 'yy', title: 'y' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'div',
       attr: {
@@ -52,7 +52,7 @@
     }]
   }, {
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'B' },
+    attr: { append: 'tree', case: 'B' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateless-multi-components.vue b/test/weex/cases/recycle-list/components/stateless-multi-components.vue
index 38fd0823b7e..9a6d6bf694e 100644
--- a/test/weex/cases/recycle-list/components/stateless-multi-components.vue
+++ b/test/weex/cases/recycle-list/components/stateless-multi-components.vue
@@ -1,11 +1,11 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <banner></banner>
       <text>----</text>
       <footer></footer>
     </cell-slot>
-    <cell-slot template-type="B">
+    <cell-slot case="B">
       <banner></banner>
       <poster :image-url="item.poster" :title="item.title"></poster>
     </cell-slot>
diff --git a/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
index 782cdd4d93a..744c6af2861 100644
--- a/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A', poster: 'xx', title: 'x' },
       { type: 'A', poster: 'yy', title: 'y' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateless-with-props.vue b/test/weex/cases/recycle-list/components/stateless-with-props.vue
index 134ad5e1c11..e1d3d8ccb21 100644
--- a/test/weex/cases/recycle-list/components/stateless-with-props.vue
+++ b/test/weex/cases/recycle-list/components/stateless-with-props.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <poster :image-url="item.poster" :title="item.title"></poster>
       <text>content</text>
     </cell-slot>
diff --git a/test/weex/cases/recycle-list/components/stateless.vdom.js b/test/weex/cases/recycle-list/components/stateless.vdom.js
index da3b2b52018..a516132e0a9 100644
--- a/test/weex/cases/recycle-list/components/stateless.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/components/stateless.vue b/test/weex/cases/recycle-list/components/stateless.vue
index ee3f45bf6b0..3ad942de64f 100644
--- a/test/weex/cases/recycle-list/components/stateless.vue
+++ b/test/weex/cases/recycle-list/components/stateless.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <banner></banner>
       <text>content</text>
     </cell-slot>
diff --git a/test/weex/cases/recycle-list/inline-style.vdom.js b/test/weex/cases/recycle-list/inline-style.vdom.js
index bac7961c56d..c29bcf977fe 100644
--- a/test/weex/cases/recycle-list/inline-style.vdom.js
+++ b/test/weex/cases/recycle-list/inline-style.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A', color: '#606060' },
       { type: 'A', color: '#E5E5E5' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     style: {
       backgroundColor: '#FF6600'
     },
diff --git a/test/weex/cases/recycle-list/inline-style.vue b/test/weex/cases/recycle-list/inline-style.vue
index 5f59c211ac5..af9da5b0832 100644
--- a/test/weex/cases/recycle-list/inline-style.vue
+++ b/test/weex/cases/recycle-list/inline-style.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A" style="background-color:#FF6600">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A" style="background-color:#FF6600">
       <text :style="{ fontSize: '100px', color: item.color }">content</text>
     </cell-slot>
   </recycle-list>
diff --git a/test/weex/cases/recycle-list/text-node.vdom.js b/test/weex/cases/recycle-list/text-node.vdom.js
index 4b7c834c7f1..6ab5d1e6bbc 100644
--- a/test/weex/cases/recycle-list/text-node.vdom.js
+++ b/test/weex/cases/recycle-list/text-node.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A', dynamic: 'decimal', two: '2', four: '4' },
       { type: 'A', dynamic: 'binary', two: '10', four: '100' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'text',
       attr: {
diff --git a/test/weex/cases/recycle-list/text-node.vue b/test/weex/cases/recycle-list/text-node.vue
index 801f3168d5f..56b21cad1c6 100644
--- a/test/weex/cases/recycle-list/text-node.vue
+++ b/test/weex/cases/recycle-list/text-node.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <text>static</text>
       <text>{{item.dynamic}}</text>
       <text>one {{item.two}} three {{ item.four }} five</text>
diff --git a/test/weex/cases/recycle-list/v-else-if.vdom.js b/test/weex/cases/recycle-list/v-else-if.vdom.js
index 781e327e4e9..30b38864b82 100644
--- a/test/weex/cases/recycle-list/v-else-if.vdom.js
+++ b/test/weex/cases/recycle-list/v-else-if.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-else-if.vue b/test/weex/cases/recycle-list/v-else-if.vue
index bde4ccc65f8..6078450c334 100644
--- a/test/weex/cases/recycle-list/v-else-if.vue
+++ b/test/weex/cases/recycle-list/v-else-if.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <image v-if="item.sourceA" :src="item.sourceA"></image>
       <image v-else-if="item.sourceB" :src="item.sourceB"></image>
       <image v-else :src="item.placeholder"></image>
diff --git a/test/weex/cases/recycle-list/v-else.vdom.js b/test/weex/cases/recycle-list/v-else.vdom.js
index 466cb379a24..dc37e1d3cd8 100644
--- a/test/weex/cases/recycle-list/v-else.vdom.js
+++ b/test/weex/cases/recycle-list/v-else.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-else.vue b/test/weex/cases/recycle-list/v-else.vue
index 086d39dbac0..48e85fd8889 100644
--- a/test/weex/cases/recycle-list/v-else.vue
+++ b/test/weex/cases/recycle-list/v-else.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <image v-if="item.source" :src="item.source"></image>
       <image v-else v-bind:src="item.placeholder"></image>
     </cell-slot>
diff --git a/test/weex/cases/recycle-list/v-for-iterator.vdom.js b/test/weex/cases/recycle-list/v-for-iterator.vdom.js
index ea164fe93eb..5507403b8c9 100644
--- a/test/weex/cases/recycle-list/v-for-iterator.vdom.js
+++ b/test/weex/cases/recycle-list/v-for-iterator.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-for-iterator.vue b/test/weex/cases/recycle-list/v-for-iterator.vue
index a6b7dc312e2..ed424a28069 100644
--- a/test/weex/cases/recycle-list/v-for-iterator.vue
+++ b/test/weex/cases/recycle-list/v-for-iterator.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <div v-for="(object, index) in item.list" :key="index">
         <text>{{object.name}}</text>
         <text v-for="(v, k, i) in object" :key="k">{{v}}</text>
diff --git a/test/weex/cases/recycle-list/v-for.vdom.js b/test/weex/cases/recycle-list/v-for.vdom.js
index 0060e34c4b2..bbae2d53184 100644
--- a/test/weex/cases/recycle-list/v-for.vdom.js
+++ b/test/weex/cases/recycle-list/v-for.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'div',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-for.vue b/test/weex/cases/recycle-list/v-for.vue
index 713d5c02866..57a6890d948 100644
--- a/test/weex/cases/recycle-list/v-for.vue
+++ b/test/weex/cases/recycle-list/v-for.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <div v-for="panel in item.list" :key="panel.id">
         <text>{{panel.label}}</text>
       </div>
diff --git a/test/weex/cases/recycle-list/v-if.vdom.js b/test/weex/cases/recycle-list/v-if.vdom.js
index fc9405d80e8..fe5339b0e76 100644
--- a/test/weex/cases/recycle-list/v-if.vdom.js
+++ b/test/weex/cases/recycle-list/v-if.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'image',
       attr: {
diff --git a/test/weex/cases/recycle-list/v-if.vue b/test/weex/cases/recycle-list/v-if.vue
index bec7cdac8e7..ab2e04706da 100644
--- a/test/weex/cases/recycle-list/v-if.vue
+++ b/test/weex/cases/recycle-list/v-if.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <image v-if="item.source" :src="item.source"></image>
       <text v-if="!item.source">Title</text>
     </cell-slot>
diff --git a/test/weex/cases/recycle-list/v-on-inline.vdom.js b/test/weex/cases/recycle-list/v-on-inline.vdom.js
index 436a12d80ee..461fb993d83 100644
--- a/test/weex/cases/recycle-list/v-on-inline.vdom.js
+++ b/test/weex/cases/recycle-list/v-on-inline.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'text',
       event: ['click', {
diff --git a/test/weex/cases/recycle-list/v-on-inline.vue b/test/weex/cases/recycle-list/v-on-inline.vue
index bf7ae7018d5..ae909b281a2 100644
--- a/test/weex/cases/recycle-list/v-on-inline.vue
+++ b/test/weex/cases/recycle-list/v-on-inline.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <text v-on:click="toggle()" @longpress="toggle(item.key)"></text>
       <text @appear="onappear(item.index, 'static', item.type, $event)">Button</text>
       <text @disappear="onappear(25, 'static')">Tips</text>
diff --git a/test/weex/cases/recycle-list/v-on.vdom.js b/test/weex/cases/recycle-list/v-on.vdom.js
index be347c34d8b..3da82096382 100644
--- a/test/weex/cases/recycle-list/v-on.vdom.js
+++ b/test/weex/cases/recycle-list/v-on.vdom.js
@@ -6,12 +6,12 @@
       { type: 'A' },
       { type: 'A' }
     ],
-    templateKey: 'type',
+    switch: 'type',
     alias: 'item'
   },
   children: [{
     type: 'cell-slot',
-    attr: { append: 'tree', templateType: 'A' },
+    attr: { append: 'tree', case: 'A' },
     children: [{
       type: 'text',
       event: ['click', 'longpress'],
diff --git a/test/weex/cases/recycle-list/v-on.vue b/test/weex/cases/recycle-list/v-on.vue
index de5fc51bfb8..fb40f1522a1 100644
--- a/test/weex/cases/recycle-list/v-on.vue
+++ b/test/weex/cases/recycle-list/v-on.vue
@@ -1,6 +1,6 @@
 <template>
-  <recycle-list :list-data="longList" template-key="type" alias="item">
-    <cell-slot template-type="A">
+  <recycle-list for="item in longList" switch="type">
+    <cell-slot case="A">
       <text v-on:click="handler" @longpress="move">A</text>
       <text @touchend="move">B</text>
     </cell-slot>
diff --git a/test/weex/compiler/append.spec.js b/test/weex/compiler/append.spec.js
index 60ceccd328f..0492a6d0014 100644
--- a/test/weex/compiler/append.spec.js
+++ b/test/weex/compiler/append.spec.js
@@ -26,9 +26,9 @@ describe('append props', () => {
   })
 
   it('add append="tree" on <recycle-list>', () => {
-    const { render, staticRenderFns, errors } = compile(`<recycle-list><div></div></recycle-list>`)
+    const { render, staticRenderFns, errors } = compile(`<recycle-list for="item in list"><div></div></recycle-list>`)
     expect(render + staticRenderFns).toMatch(strToRegExp(`appendAsTree:true`))
-    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"append":"tree"}`))
+    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"listData":list,"alias":"item","append":"tree"}`))
     expect(errors).toEqual([])
   })
 

From e055df82fec0e76e4bc65e5a265b42e208595430 Mon Sep 17 00:00:00 2001
From: "cinwell.li" <cinwell.li@gmail.com>
Date: Wed, 20 Dec 2017 22:05:21 +0800
Subject: [PATCH 351/911] fix(weex): default value for editor, fix #7165
 (#7286)

* fix(weex): default value for editor, fix #7165

/cc Hanks10100

* fix(weex): recycle-list test
---
 test/weex/cases/recycle-list/components/editor.vue              | 2 +-
 .../weex/cases/recycle-list/components/stateful-v-model.vdom.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/weex/cases/recycle-list/components/editor.vue b/test/weex/cases/recycle-list/components/editor.vue
index 11d3ea1bc55..9ab63e7b3c4 100644
--- a/test/weex/cases/recycle-list/components/editor.vue
+++ b/test/weex/cases/recycle-list/components/editor.vue
@@ -10,7 +10,7 @@
     props: ['message'],
     data () {
       return {
-        output: this.message | ''
+        output: this.message || ''
       }
     }
   }
diff --git a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
index 88af1438c24..1c5b06f10df 100644
--- a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
@@ -41,7 +41,7 @@
         },
         attr: {
           type: 'text',
-          value: 0
+          value: 'No binding'
         }
       }]
     }]

From 49aae6bb157e0650507974b7a9a1b0f2215e400b Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Wed, 20 Dec 2017 23:09:23 +0900
Subject: [PATCH 352/911] fix(types): make VNodeChildrenArrayContents type more
 accurate (#7287)

---
 types/test/options-test.ts | 15 ++++++++++++++-
 types/vnode.d.ts           |  4 +---
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index e1edff3f5ad..a62d9bb259a 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -1,4 +1,4 @@
-import Vue from "../index";
+import Vue, { VNode } from "../index";
 import { AsyncComponent, ComponentOptions, FunctionalComponentOptions } from "../index";
 import { CreateElement } from "../vue";
 
@@ -277,6 +277,19 @@ Vue.component('component-with-scoped-slot', {
   }
 })
 
+Vue.component('narrow-array-of-vnode-type', {
+  render (h): VNode {
+    const slot = this.$scopedSlots.default({})
+    if (typeof slot !== 'string') {
+      const first = slot[0]
+      if (!Array.isArray(first) && typeof first !== 'string') {
+        return first;
+      }
+    }
+    return h();
+  }
+})
+
 Vue.component('functional-component', {
   props: ['prop'],
   functional: true,
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index 2fd2ef13c59..5754c433dcd 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -3,9 +3,7 @@ import { Vue } from "./vue";
 export type ScopedSlot = (props: any) => VNodeChildrenArrayContents | string;
 
 export type VNodeChildren = VNodeChildrenArrayContents | [ScopedSlot] | string;
-export interface VNodeChildrenArrayContents {
-  [x: number]: VNode | string | VNodeChildren;
-}
+export interface VNodeChildrenArrayContents extends Array<VNode | string | VNodeChildrenArrayContents> {}
 
 export interface VNode {
   tag?: string;

From 8335217cb4bd13fb07e08a76c07df0fceed6c197 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 20 Dec 2017 11:02:42 -0500
Subject: [PATCH 353/911] fix(core): handle edge cases for functional component
 returning arrays

fix #7282
---
 src/core/vdom/create-component.js             |  2 +-
 src/core/vdom/create-element.js               |  8 ++-
 src/core/vdom/create-functional-component.js  | 26 ++++++---
 test/unit/features/options/functional.spec.js | 56 +++++++++++++++++++
 4 files changed, 80 insertions(+), 12 deletions(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 60809093a14..81dd1a2dc46 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -107,7 +107,7 @@ export function createComponent (
   context: Component,
   children: ?Array<VNode>,
   tag?: string
-): VNode | void {
+): VNode | Array<VNode> | void {
   if (isUndef(Ctor)) {
     return
   }
diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index 9b5b28d2509..d711dfb8421 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -30,7 +30,7 @@ export function createElement (
   children: any,
   normalizationType: any,
   alwaysNormalize: boolean
-): VNode {
+): VNode | Array<VNode> {
   if (Array.isArray(data) || isPrimitive(data)) {
     normalizationType = children
     children = data
@@ -48,7 +48,7 @@ export function _createElement (
   data?: VNodeData,
   children?: any,
   normalizationType?: number
-): VNode {
+): VNode | Array<VNode> {
   if (isDef(data) && isDef((data: any).__ob__)) {
     process.env.NODE_ENV !== 'production' && warn(
       `Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` +
@@ -117,7 +117,9 @@ export function _createElement (
     vnode = createComponent(tag, data, context, children)
   }
   if (isDef(vnode)) {
-    if (ns) applyNS(vnode, ns)
+    if (ns && !Array.isArray(vnode)) {
+      applyNS(vnode, ns)
+    }
     return vnode
   } else {
     return createEmptyVNode()
diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index ff00f240a22..d0cbd0a2584 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -3,6 +3,7 @@
 import VNode from './vnode'
 import { createElement } from './create-element'
 import { resolveInject } from '../instance/inject'
+import { normalizeChildren } from '../vdom/helpers/normalize-children'
 import { resolveSlots } from '../instance/render-helpers/resolve-slots'
 import { installRenderHelpers } from '../instance/render-helpers/index'
 
@@ -47,8 +48,8 @@ function FunctionalRenderContext (
 
   if (options._scopeId) {
     this._c = (a, b, c, d) => {
-      const vnode: ?VNode = createElement(contextVm, a, b, c, d, needNormalization)
-      if (vnode) {
+      const vnode = createElement(contextVm, a, b, c, d, needNormalization)
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId
         vnode.fnContext = parent
       }
@@ -67,7 +68,7 @@ export function createFunctionalComponent (
   data: VNodeData,
   contextVm: Component,
   children: ?Array<VNode>
-): VNode | void {
+): VNode | Array<VNode> | void {
   const options = Ctor.options
   const props = {}
   const propOptions = options.props
@@ -91,14 +92,23 @@ export function createFunctionalComponent (
   const vnode = options.render.call(null, renderContext._c, renderContext)
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm
-    vnode.fnOptions = options
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot
+    setFunctionalContextForVNode(vnode, data, contextVm, options)
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    const vnodes = normalizeChildren(vnode) || []
+    for (let i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options)
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm
+  vnode.fnOptions = options
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot
+  }
 }
 
 function mergeProps (to, from) {
diff --git a/test/unit/features/options/functional.spec.js b/test/unit/features/options/functional.spec.js
index ecbd0be3c55..2c6abe95972 100644
--- a/test/unit/features/options/functional.spec.js
+++ b/test/unit/features/options/functional.spec.js
@@ -186,6 +186,62 @@ describe('Options functional', () => {
     expect(vnode).toEqual(createEmptyVNode())
   })
 
+  // #7282
+  it('should normalize top-level arrays', () => {
+    const Foo = {
+      functional: true,
+      render (h) {
+        return [h('span', 'hi'), null]
+      }
+    }
+    const vm = new Vue({
+      template: `<div><foo/></div>`,
+      components: { Foo }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe('<span>hi</span>')
+  })
+
+  it('should work when used as named slot and returning array', () => {
+    const Foo = {
+      template: `<div><slot name="test"/></div>`
+    }
+
+    const Bar = {
+      functional: true,
+      render: h => ([
+        h('div', 'one'),
+        h('div', 'two'),
+        h(Baz)
+      ])
+    }
+
+    const Baz = {
+      functional: true,
+      render: h => h('div', 'three')
+    }
+
+    const vm = new Vue({
+      template: `<foo><bar slot="test"/></foo>`,
+      components: { Foo, Bar }
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe('<div>one</div><div>two</div><div>three</div>')
+  })
+
+  it('should apply namespace when returning arrays', () => {
+    const Child = {
+      functional: true,
+      render: h => ([h('foo'), h('bar')])
+    }
+    const vm = new Vue({
+      template: `<svg><child/></svg>`,
+      components: { Child }
+    }).$mount()
+
+    expect(vm.$el.childNodes[0].namespaceURI).toContain('svg')
+    expect(vm.$el.childNodes[1].namespaceURI).toContain('svg')
+  })
+
   it('should work with render fns compiled from template', done => {
     // code generated via vue-template-es2015-compiler
     var render = function (_h, _vm) {

From 956756b1be7084daf8b6afb92ac0da7c24cde2a5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 20 Dec 2017 19:44:24 -0500
Subject: [PATCH 354/911] refactor: use more efficient on-demand clone to
 handle reused node edge cases

removes unnecessary slot/static node clones, fix #7292
---
 src/core/instance/lifecycle.js                |  3 +-
 .../instance/render-helpers/render-static.js  |  8 +---
 src/core/instance/render.js                   | 19 ++++-----
 src/core/vdom/create-component.js             | 14 ++++---
 src/core/vdom/create-element.js               | 23 ++++++++--
 src/core/vdom/patch.js                        | 31 +++++++++++---
 src/core/vdom/vnode.js                        | 22 +---------
 .../modules/vdom/patch/edge-cases.spec.js     | 42 ++++++++++++++++++-
 8 files changed, 107 insertions(+), 55 deletions(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 46b931e0a53..501800dc996 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -239,7 +239,7 @@ export function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject
+  vm.$attrs = parentVnode.data.attrs || emptyObject
   vm.$listeners = listeners || emptyObject
 
   // update props
@@ -262,6 +262,7 @@ export function updateChildComponent (
     vm.$options._parentListeners = listeners
     updateComponentListeners(vm, listeners, oldListeners)
   }
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context)
diff --git a/src/core/instance/render-helpers/render-static.js b/src/core/instance/render-helpers/render-static.js
index a26abbb6ee9..f56510b3ef3 100644
--- a/src/core/instance/render-helpers/render-static.js
+++ b/src/core/instance/render-helpers/render-static.js
@@ -1,7 +1,5 @@
 /* @flow */
 
-import { cloneVNode, cloneVNodes } from 'core/vdom/vnode'
-
 /**
  * Runtime helper for rendering static trees.
  */
@@ -12,11 +10,9 @@ export function renderStatic (
   const cached = this._staticTrees || (this._staticTrees = [])
   let tree = cached[index]
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 391e124e2fc..70fb2c0e57a 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -11,7 +11,7 @@ import {
 import { createElement } from '../vdom/create-element'
 import { installRenderHelpers } from './render-helpers/index'
 import { resolveSlots } from './render-helpers/resolve-slots'
-import VNode, { cloneVNodes, createEmptyVNode } from '../vdom/vnode'
+import VNode, { createEmptyVNode } from '../vdom/vnode'
 
 import { isUpdatingChildComponent } from './lifecycle'
 
@@ -62,20 +62,17 @@ export function renderMixin (Vue: Class<Component>) {
     const vm: Component = this
     const { render, _parentVnode } = vm.$options
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    if (process.env.NODE_ENV !== 'production') {
       for (const key in vm.$slots) {
-        const slot = vm.$slots[key]
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */)
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 81dd1a2dc46..7872bd2a5e5 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -40,7 +40,15 @@ const componentVNodeHooks = {
     parentElm: ?Node,
     refElm: ?Node
   ): ?boolean {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      const mountedNode: any = vnode // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode)
+    } else {
       const child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -48,10 +56,6 @@ const componentVNodeHooks = {
         refElm
       )
       child.$mount(hydrating ? vnode.elm : undefined, hydrating)
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      const mountedNode: any = vnode // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode)
     }
   },
 
diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index d711dfb8421..248bcff18f9 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -3,12 +3,14 @@
 import config from '../config'
 import VNode, { createEmptyVNode } from './vnode'
 import { createComponent } from './create-component'
+import { traverse } from '../observer/traverse'
 
 import {
   warn,
   isDef,
   isUndef,
   isTrue,
+  isObject,
   isPrimitive,
   resolveAsset
 } from '../util/index'
@@ -116,10 +118,11 @@ export function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children)
   }
-  if (isDef(vnode)) {
-    if (ns && !Array.isArray(vnode)) {
-      applyNS(vnode, ns)
-    }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) applyNS(vnode, ns)
+    if (isDef(data)) registerDeepBindings(data)
     return vnode
   } else {
     return createEmptyVNode()
@@ -142,3 +145,15 @@ function applyNS (vnode, ns, force) {
     }
   }
 }
+
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style)
+  }
+  if (isObject(data.class)) {
+    traverse(data.class)
+  }
+}
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 00c67a5b108..da9850856a2 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -10,7 +10,7 @@
  * of making flow understand it is not worth it.
  */
 
-import VNode from './vnode'
+import VNode, { cloneVNode } from './vnode'
 import config from '../config'
 import { SSR_ATTR } from 'shared/constants'
 import { registerRef } from './modules/ref'
@@ -121,7 +121,25 @@ export function createPatchFunction (backend) {
   }
 
   let creatingElmInVPre = 0
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode)
+    }
+
     vnode.isRootInsert = !nested // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -144,6 +162,7 @@ export function createPatchFunction (backend) {
           )
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode)
@@ -267,7 +286,7 @@ export function createPatchFunction (backend) {
         checkDuplicateKeys(children)
       }
       for (let i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true)
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i)
       }
     } else if (isPrimitive(vnode.text)) {
       nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)))
@@ -320,7 +339,7 @@ export function createPatchFunction (backend) {
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm)
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx)
     }
   }
 
@@ -430,7 +449,7 @@ export function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx)
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx)
         } else {
           vnodeToMove = oldCh[idxInOld]
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -439,7 +458,7 @@ export function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm)
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm)
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx)
           }
         }
         newStartVnode = newCh[++newStartIdx]
diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 838f9f1e155..c2daed6b331 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -85,8 +85,7 @@ export function createTextVNode (val: string | number) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
-  const componentOptions = vnode.componentOptions
+export function cloneVNode (vnode: VNode): VNode {
   const cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -94,7 +93,7 @@ export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   )
   cloned.ns = vnode.ns
@@ -105,22 +104,5 @@ export function cloneVNode (vnode: VNode, deep?: boolean): VNode {
   cloned.fnOptions = vnode.fnOptions
   cloned.fnScopeId = vnode.fnScopeId
   cloned.isCloned = true
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true)
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true)
-    }
-  }
   return cloned
 }
-
-export function cloneVNodes (vnodes: Array<VNode>, deep?: boolean): Array<VNode> {
-  const len = vnodes.length
-  const res = new Array(len)
-  for (let i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep)
-  }
-  return res
-}
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 3673b3f5fff..c78a2fd24ba 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -26,7 +26,7 @@ describe('vdom patch: edge cases', () => {
   })
 
   // #3533
-  // a static node (<br>) is reused in createElm, which changes its elm reference
+  // a static node is reused in createElm, which changes its elm reference
   // and is inserted into a different parent.
   // later when patching the next element a DOM insertion uses it as the
   // reference node, causing a parent mismatch.
@@ -40,11 +40,12 @@ describe('vdom patch: edge cases', () => {
           <button @click="ok = !ok">toggle</button>
           <div class="b" v-if="ok">123</div>
           <div class="c">
-            <br><p>{{ 1 }}</p>
+            <div><span/></div><p>{{ 1 }}</p>
           </div>
           <div class="d">
             <label>{{ 2 }}</label>
           </div>
+          <div class="b" v-if="ok">123</div>
         </div>
       `
     }).$mount()
@@ -58,6 +59,43 @@ describe('vdom patch: edge cases', () => {
     }).then(done)
   })
 
+  it('should handle slot nodes being reused across render', done => {
+    const vm = new Vue({
+      template: `
+        <foo ref="foo">
+          <div>slot</div>
+        </foo>
+      `,
+      components: {
+        foo: {
+          data () {
+            return { ok: true }
+          },
+          render (h) {
+            const children = [
+              this.ok ? h('div', 'toggler ') : null,
+              h('div', [this.$slots.default, h('span', ' 1')]),
+              h('div', [h('label', ' 2')])
+            ]
+            return h('div', children)
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$el.textContent).toContain('toggler slot 1 2')
+    vm.$refs.foo.ok = false
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toContain('slot 1 2')
+      vm.$refs.foo.ok = true
+    }).then(() => {
+      expect(vm.$el.textContent).toContain('toggler slot 1 2')
+      vm.$refs.foo.ok = false
+    }).then(() => {
+      expect(vm.$el.textContent).toContain('slot 1 2')
+      vm.$refs.foo.ok = true
+    }).then(done)
+  })
+
   it('should synchronize vm\' vnode', done => {
     const comp = {
       data: () => ({ swap: true }),

From d8b08387a293c99b95c1efcf2517447335a618db Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Dec 2017 10:36:03 -0500
Subject: [PATCH 355/911] fix: clean up custom events when patched component no
 longer have events

fix #7294
---
 src/core/instance/lifecycle.js                |  9 +++----
 .../modules/vdom/patch/edge-cases.spec.js     | 26 +++++++++++++++++++
 2 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 501800dc996..27756af66fc 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -257,11 +257,10 @@ export function updateChildComponent (
   }
 
   // update listeners
-  if (listeners) {
-    const oldListeners = vm.$options._parentListeners
-    vm.$options._parentListeners = listeners
-    updateComponentListeners(vm, listeners, oldListeners)
-  }
+  listeners = listeners || emptyObject
+  const oldListeners = vm.$options._parentListeners
+  vm.$options._parentListeners = listeners
+  updateComponentListeners(vm, listeners, oldListeners)
 
   // resolve slots + force update if has children
   if (hasChildren) {
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index c78a2fd24ba..df60d0132ee 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -301,4 +301,30 @@ describe('vdom patch: edge cases', () => {
       expect(vm.$el.children[0].style.color).toBe('green')
     }).then(done)
   })
+
+  // #7294
+  it('should cleanup component inline events on patch when no events are present', done => {
+    const log = jasmine.createSpy()
+    const vm = new Vue({
+      data: { ok: true },
+      template: `
+        <div>
+          <foo v-if="ok" @custom="log"/>
+          <foo v-else/>
+        </div>
+      `,
+      components: {
+        foo: {
+          render () {}
+        }
+      },
+      methods: { log }
+    }).$mount()
+
+    vm.ok = false
+    waitForUpdate(() => {
+      vm.$children[0].$emit('custom')
+      expect(log).not.toHaveBeenCalled()
+    }).then(done)
+  })
 })

From 41838c8e8632ba78791996fbc697080b2764bb6a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Dec 2017 11:06:43 -0500
Subject: [PATCH 356/911] feat: support v-model dynamic type binding for
 v-bind="object"

close #7296
---
 src/platforms/web/compiler/modules/model.js   | 15 +++++-
 .../features/directives/model-dynamic.spec.js | 50 +++++++++++++++++++
 2 files changed, 63 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/compiler/modules/model.js b/src/platforms/web/compiler/modules/model.js
index 2ef37e836d3..a7426c0204f 100644
--- a/src/platforms/web/compiler/modules/model.js
+++ b/src/platforms/web/compiler/modules/model.js
@@ -26,8 +26,19 @@ import {
 function preTransformNode (el: ASTElement, options: CompilerOptions) {
   if (el.tag === 'input') {
     const map = el.attrsMap
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      const typeBinding: any = getBindingAttr(el, 'type')
+    if (!map['v-model']) {
+      return
+    }
+
+    let typeBinding
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type')
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = `(${map['v-bind']}).type`
+    }
+
+    if (typeBinding) {
       const ifCondition = getAndRemoveAttr(el, 'v-if', true)
       const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``
       const hasElse = getAndRemoveAttr(el, 'v-else', true) != null
diff --git a/test/unit/features/directives/model-dynamic.spec.js b/test/unit/features/directives/model-dynamic.spec.js
index a5c18fe82b2..88a910fedfa 100644
--- a/test/unit/features/directives/model-dynamic.spec.js
+++ b/test/unit/features/directives/model-dynamic.spec.js
@@ -127,6 +127,56 @@ describe('Directive v-model dynamic input type', () => {
       expect(vm.data.text).toBe('foo')
     }).then(done)
   })
+
+  it('with v-bind', done => {
+    const vm = new Vue({
+      data: {
+        data: {
+          text: 'foo',
+          checkbox: true
+        },
+        inputs: [{ id: 'one', type: 'text' }, { id: 'two', type: 'checkbox' }]
+      },
+      template: `<div>
+        <input v-for="i in inputs" v-bind="i" v-model="data[i.type]">
+      </div>`
+    }).$mount()
+    document.body.appendChild(vm.$el)
+
+    let el1 = vm.$el.children[0]
+    expect(el1.id).toBe('one')
+    expect(el1.type).toBe('text')
+    expect(el1.value).toBe('foo')
+    el1.value = 'bar'
+    triggerEvent(el1, 'input')
+    expect(vm.data.text).toBe('bar')
+
+    let el2 = vm.$el.children[1]
+    expect(el2.id).toBe('two')
+    expect(el2.type).toBe('checkbox')
+    expect(el2.checked).toBe(true)
+    el2.click()
+    expect(vm.data.checkbox).toBe(false)
+
+    // now in reverse!
+    vm.inputs.reverse()
+    waitForUpdate(() => {
+      el1 = vm.$el.children[0]
+      expect(el1.id).toBe('two')
+      expect(el1.type).toBe('checkbox')
+      expect(el1.checked).toBe(false)
+      el1.click()
+      expect(vm.data.checkbox).toBe(true)
+
+      el2 = vm.$el.children[1]
+      expect(el2.id).toBe('one')
+      expect(el2.type).toBe('text')
+      expect(el2.value).toBe('bar')
+      el2.value = 'foo'
+      triggerEvent(el2, 'input')
+      expect(vm.data.text).toBe('foo')
+    }).then(done)
+  })
 })
 
 function assertInputWorks (vm, type, chain) {

From 24947729477c199900115b10bff07f397801fbc1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Dec 2017 17:04:19 -0500
Subject: [PATCH 357/911] chore: add one-time donation link

---
 BACKERS.md | 11 ++++++-----
 README.md  |  1 +
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index ebec47fb224..9f3d129ac67 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -4,6 +4,7 @@ Vue.js is an MIT-licensed open source project. It's an independent project with
 
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou).
 - [Become a backer or sponsor on OpenCollective](https://opencollective.com/vuejs).
+- [One-time donation via PayPal or crypto-currencies.](https://vuejs.org/support-vuejs/#One-time-Donations)
 
 #### What's the difference between Patreon and OpenCollective?
 
@@ -284,12 +285,12 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik 
+- errorrik
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
 - HARRI J SALOMAA
-- tjkoury 
+- tjkoury
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -315,13 +316,13 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解 
+- 叶解
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
 - Isaac Sant
 - Milos Stojanovic
-- 4 
+- 4
 - The Graphic Design School
 - Christian Griffith
 - Jarek Tkaczyk
@@ -338,7 +339,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale 
+- Edithvale
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
diff --git a/README.md b/README.md
index 1b23a94e993..32281988766 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,7 @@ Vue.js is an MIT-licensed open source project. It's an independent project with
 
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou).
 - [Become a backer or sponsor on Open Collective](https://opencollective.com/vuejs).
+- [One-time donation via PayPal or crypto-currencies.](https://vuejs.org/support-vuejs/#One-time-Donations)
 
 #### What's the difference between Patreon and OpenCollective?
 

From 144a4dd860b20ca48263bac150286f627e08d953 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Dec 2017 20:17:47 -0500
Subject: [PATCH 358/911] build: rename build/ to scripts/

---
 .flowconfig                             |  2 +-
 .github/CONTRIBUTING.md                 |  6 +++---
 package.json                            | 26 ++++++++++++-------------
 {build => scripts}/alias.js             |  0
 {build => scripts}/build.js             |  0
 {build => scripts}/config.js            |  0
 {build => scripts}/gen-release-note.js  |  0
 {build => scripts}/get-weex-version.js  |  0
 {build => scripts}/git-hooks/commit-msg |  0
 {build => scripts}/git-hooks/pre-commit |  0
 {build => scripts}/release-weex.sh      |  0
 {build => scripts}/release.sh           |  0
 {build => scripts}/setup.js             |  0
 test/unit/karma.base.config.js          |  2 +-
 14 files changed, 18 insertions(+), 18 deletions(-)
 rename {build => scripts}/alias.js (100%)
 rename {build => scripts}/build.js (100%)
 rename {build => scripts}/config.js (100%)
 rename {build => scripts}/gen-release-note.js (100%)
 rename {build => scripts}/get-weex-version.js (100%)
 rename {build => scripts}/git-hooks/commit-msg (100%)
 rename {build => scripts}/git-hooks/pre-commit (100%)
 rename {build => scripts}/release-weex.sh (100%)
 rename {build => scripts}/release.sh (100%)
 rename {build => scripts}/setup.js (100%)

diff --git a/.flowconfig b/.flowconfig
index b070e08fddb..2d6f9a739ea 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -1,7 +1,7 @@
 [ignore]
 .*/node_modules/.*
 .*/test/.*
-.*/build/.*
+.*/scripts/.*
 .*/examples/.*
 .*/benchmarks/.*
 
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 4f140719553..8a0a309122d 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -75,11 +75,11 @@ The default test script will do the following: lint with ESLint -> type check wi
 
 ## Project Structure
 
-- **`build`**: contains build-related configuration files. In most cases you don't need to touch them. However, it would be helpful to familiarize yourself with the following files:
+- **`scripts`**: contains build-related scripts and configuration files. In most cases you don't need to touch them. However, it would be helpful to familiarize yourself with the following files:
 
-  - `build/alias.js`: module import aliases used across all source code and tests.
+  - `scripts/alias.js`: module import aliases used across all source code and tests.
 
-  - `build/config.js`: contains the build configurations for all files found in `dist/`. Check this file if you want to find out the entry source file for a dist file.
+  - `scripts/config.js`: contains the build configurations for all files found in `dist/`. Check this file if you want to find out the entry source file for a dist file.
 
 - **`dist`**: contains built files for distribution. Note this directory is only updated when a release happens; they do not reflect the latest changes in development branches.
 
diff --git a/package.json b/package.json
index b20976a2555..dbd65c7f3c9 100644
--- a/package.json
+++ b/package.json
@@ -13,16 +13,16 @@
     "types/*.d.ts"
   ],
   "scripts": {
-    "dev": "rollup -w -c build/config.js --environment TARGET:web-full-dev",
-    "dev:cjs": "rollup -w -c build/config.js --environment TARGET:web-runtime-cjs",
-    "dev:esm": "rollup -w -c build/config.js --environment TARGET:web-runtime-esm",
+    "dev": "rollup -w -c scripts/config.js --environment TARGET:web-full-dev",
+    "dev:cjs": "rollup -w -c scripts/config.js --environment TARGET:web-runtime-cjs",
+    "dev:esm": "rollup -w -c scripts/config.js --environment TARGET:web-runtime-esm",
     "dev:test": "karma start test/unit/karma.dev.config.js",
-    "dev:ssr": "rollup -w -c build/config.js --environment TARGET:web-server-renderer",
-    "dev:compiler": "rollup -w -c build/config.js --environment TARGET:web-compiler ",
-    "dev:weex": "rollup -w -c build/config.js --environment TARGET:weex-framework",
-    "dev:weex:factory": "rollup -w -c build/config.js --environment TARGET:weex-factory",
-    "dev:weex:compiler": "rollup -w -c build/config.js --environment TARGET:weex-compiler ",
-    "build": "node build/build.js",
+    "dev:ssr": "rollup -w -c scripts/config.js --environment TARGET:web-server-renderer",
+    "dev:compiler": "rollup -w -c scripts/config.js --environment TARGET:web-compiler ",
+    "dev:weex": "rollup -w -c scripts/config.js --environment TARGET:weex-framework",
+    "dev:weex:factory": "rollup -w -c scripts/config.js --environment TARGET:weex-factory",
+    "dev:weex:compiler": "rollup -w -c scripts/config.js --environment TARGET:weex-compiler ",
+    "build": "node scripts/build.js",
     "build:ssr": "npm run build -- web-runtime-cjs,web-server-renderer",
     "build:weex": "npm run build -- weex",
     "test": "npm run lint && flow check && npm run test:types && npm run test:cover && npm run test:e2e -- --env phantomjs && npm run test:ssr && npm run test:weex",
@@ -37,10 +37,10 @@
     "flow": "flow check",
     "sauce": "karma start test/unit/karma.sauce.config.js",
     "bench:ssr": "npm run build:ssr && node benchmarks/ssr/renderToString.js && node benchmarks/ssr/renderToStream.js",
-    "release": "bash build/release.sh",
-    "release:weex": "bash build/release-weex.sh",
-    "release:note": "node build/gen-release-note.js",
-    "setup": "node build/setup.js",
+    "release": "bash scripts/release.sh",
+    "release:weex": "bash scripts/release-weex.sh",
+    "release:note": "node scripts/gen-release-note.js",
+    "setup": "node scripts/setup.js",
     "commit": "git-cz"
   },
   "repository": {
diff --git a/build/alias.js b/scripts/alias.js
similarity index 100%
rename from build/alias.js
rename to scripts/alias.js
diff --git a/build/build.js b/scripts/build.js
similarity index 100%
rename from build/build.js
rename to scripts/build.js
diff --git a/build/config.js b/scripts/config.js
similarity index 100%
rename from build/config.js
rename to scripts/config.js
diff --git a/build/gen-release-note.js b/scripts/gen-release-note.js
similarity index 100%
rename from build/gen-release-note.js
rename to scripts/gen-release-note.js
diff --git a/build/get-weex-version.js b/scripts/get-weex-version.js
similarity index 100%
rename from build/get-weex-version.js
rename to scripts/get-weex-version.js
diff --git a/build/git-hooks/commit-msg b/scripts/git-hooks/commit-msg
similarity index 100%
rename from build/git-hooks/commit-msg
rename to scripts/git-hooks/commit-msg
diff --git a/build/git-hooks/pre-commit b/scripts/git-hooks/pre-commit
similarity index 100%
rename from build/git-hooks/pre-commit
rename to scripts/git-hooks/pre-commit
diff --git a/build/release-weex.sh b/scripts/release-weex.sh
similarity index 100%
rename from build/release-weex.sh
rename to scripts/release-weex.sh
diff --git a/build/release.sh b/scripts/release.sh
similarity index 100%
rename from build/release.sh
rename to scripts/release.sh
diff --git a/build/setup.js b/scripts/setup.js
similarity index 100%
rename from build/setup.js
rename to scripts/setup.js
diff --git a/test/unit/karma.base.config.js b/test/unit/karma.base.config.js
index 24b4a6ada52..b3f0df261de 100644
--- a/test/unit/karma.base.config.js
+++ b/test/unit/karma.base.config.js
@@ -1,4 +1,4 @@
-var alias = require('../../build/alias')
+var alias = require('../../scripts/alias')
 var webpack = require('webpack')
 
 var webpackConfig = {

From c05bbdfc36d0a2777c5721932a06f098860536b9 Mon Sep 17 00:00:00 2001
From: Xavier Damman <xdamman@gmail.com>
Date: Fri, 22 Dec 2017 14:46:01 -0500
Subject: [PATCH 359/911] chore: fixes gold / platinum sponsors on open
 collective (#7311)

Fixes https://github.com/opencollective/opencollective/issues/777
---
 README.md | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 32281988766..d6b60229019 100644
--- a/README.md
+++ b/README.md
@@ -143,16 +143,16 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h4 align="center">Platinum</h4>
 
-<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/avatar.svg"></a>
 
 <h4 align="center">Gold</h4>
 
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg"></a>
 
 ---
 

From 60fb8143f1235d0ae19d56939c424ad46bb33e61 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 22 Dec 2017 14:48:21 -0500
Subject: [PATCH 360/911] chore: fix OpenCollective links

---
 BACKERS.md | 184 ++++++++++++++++++++++++++---------------------------
 1 file changed, 92 insertions(+), 92 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 9f3d129ac67..67398b50502 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -43,8 +43,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Platinum via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/platinumsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinumsponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/avatar.svg"></a>
 
 <h2 align="center">Gold via Patreon</h2>
 
@@ -133,36 +133,36 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Gold via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/goldsponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/goldsponsors/29/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/29/avatar.svg"></a>
 
 <h2 align="center">Silver via Patreon</h2>
 
@@ -170,36 +170,36 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Silver via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silversponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silversponsors/29/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/2/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/3/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/5/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/6/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/7/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/8/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/9/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/10/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/11/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/12/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/25/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/26/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/27/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/28/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/29/avatar.svg"></a>
 
 <h2 align="center">Bronze via Patreon</h2>
 
@@ -250,36 +250,36 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Bronze via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/20/avatar.svg"></a>
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-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/bronzesponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronzesponsors/29/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/0/avatar.svg"></a>
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+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/6/avatar.svg"></a>
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+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/13/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/14/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/15/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/16/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/17/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/18/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/19/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/20/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/21/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/22/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/23/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/24/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/25/avatar.svg"></a>
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+<a href="https://opencollective.com/vuejs/tiers/bronze-sponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/bronze-sponsors/29/avatar.svg"></a>
 
 <h2 align="center">Generous Backers via Patreon ($50+)</h2>
 

From 44420b7bbcd9f6f4b0df3263e19ad19a974fa7f1 Mon Sep 17 00:00:00 2001
From: Huo Chunyang <HcySunYang@outlook.com>
Date: Mon, 25 Dec 2017 01:28:28 +0800
Subject: [PATCH 361/911] chore: correct the eslint script statement in
 package.json and correct the format. (#7308)

---
 package.json                                  |  2 +-
 .../modules/compiler/compiler-options.spec.js | 96 +++++++++----------
 2 files changed, 49 insertions(+), 49 deletions(-)

diff --git a/package.json b/package.json
index dbd65c7f3c9..70a1447ca8e 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "test:ssr": "npm run build:ssr && jasmine JASMINE_CONFIG_PATH=test/ssr/jasmine.json",
     "test:sauce": "npm run sauce -- 0 && npm run sauce -- 1 && npm run sauce -- 2",
     "test:types": "tsc -p ./types/test/tsconfig.json",
-    "lint": "eslint src build test",
+    "lint": "eslint src scripts test",
     "flow": "flow check",
     "sauce": "karma start test/unit/karma.sauce.config.js",
     "bench:ssr": "npm run build:ssr && node benchmarks/ssr/renderToString.js && node benchmarks/ssr/renderToStream.js",
diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index c7a9202cd2e..c694807dc8d 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -9,58 +9,58 @@ describe('compile options', () => {
         <input type="text" v-model="msg" required max="8" v-validate:field1.group1.group2>
       </div>
     `, {
-        directives: {
-          validate (el, dir) {
-            if (dir.name === 'validate' && dir.arg) {
-              el.validate = {
-                field: dir.arg,
-                groups: dir.modifiers ? Object.keys(dir.modifiers) : []
-              }
+      directives: {
+        validate (el, dir) {
+          if (dir.name === 'validate' && dir.arg) {
+            el.validate = {
+              field: dir.arg,
+              groups: dir.modifiers ? Object.keys(dir.modifiers) : []
             }
           }
-        },
-        modules: [{
-          transformNode (el) {
-            el.validators = el.validators || []
-            const validators = ['required', 'min', 'max', 'pattern', 'maxlength', 'minlength']
-            validators.forEach(name => {
-              const rule = getAndRemoveAttr(el, name)
-              if (rule !== undefined) {
-                el.validators.push({ name, rule })
-              }
-            })
-          },
-          genData (el) {
-            let data = ''
-            if (el.validate) {
-              data += `validate:${JSON.stringify(el.validate)},`
-            }
-            if (el.validators) {
-              data += `validators:${JSON.stringify(el.validators)},`
-            }
-            return data
-          },
-          transformCode (el, code) {
-          // check
-            if (!el.validate || !el.validators) {
-              return code
+        }
+      },
+      modules: [{
+        transformNode (el) {
+          el.validators = el.validators || []
+          const validators = ['required', 'min', 'max', 'pattern', 'maxlength', 'minlength']
+          validators.forEach(name => {
+            const rule = getAndRemoveAttr(el, name)
+            if (rule !== undefined) {
+              el.validators.push({ name, rule })
             }
-            // setup validation result props
-            const result = { dirty: false } // define something other prop
-            el.validators.forEach(validator => {
-              result[validator.name] = null
-            })
-            // generate code
-            return `_c('validate',{props:{
-            field:${JSON.stringify(el.validate.field)},
-            groups:${JSON.stringify(el.validate.groups)},
-            validators:${JSON.stringify(el.validators)},
-            result:${JSON.stringify(result)},
-            child:${code}}
-          })`
+          })
+        },
+        genData (el) {
+          let data = ''
+          if (el.validate) {
+            data += `validate:${JSON.stringify(el.validate)},`
           }
-        }]
-      })
+          if (el.validators) {
+            data += `validators:${JSON.stringify(el.validators)},`
+          }
+          return data
+        },
+        transformCode (el, code) {
+        // check
+          if (!el.validate || !el.validators) {
+            return code
+          }
+          // setup validation result props
+          const result = { dirty: false } // define something other prop
+          el.validators.forEach(validator => {
+            result[validator.name] = null
+          })
+          // generate code
+          return `_c('validate',{props:{
+          field:${JSON.stringify(el.validate.field)},
+          groups:${JSON.stringify(el.validate.groups)},
+          validators:${JSON.stringify(el.validators)},
+          result:${JSON.stringify(result)},
+          child:${code}}
+        })`
+        }
+      }]
+    })
     expect(render).not.toBeUndefined()
     expect(staticRenderFns).toEqual([])
     expect(errors).toEqual([])

From dccd182b6763d8ef1871949029c85495ca958246 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AD=9F=E5=81=A5?= <384709054@qq.com>
Date: Mon, 25 Dec 2017 23:50:36 +0800
Subject: [PATCH 362/911] fix: allow codebase to be inlined directly in HTML
 (#7314)

escape - to avoid regex being parsed as HTML comment when entire codebase is inlined.
fix #7298
---
 src/compiler/parser/html-parser.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index 86955e0e7ab..e2203613204 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -22,7 +22,8 @@ const startTagOpen = new RegExp(`^<${qnameCapture}`)
 const startTagClose = /^\s*(\/?)>/
 const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`)
 const doctype = /^<!DOCTYPE [^>]+>/i
-const comment = /^<!--/
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+const comment = /^<!\--/
 const conditionalComment = /^<!\[/
 
 let IS_REGEX_CAPTURING_BROKEN = false
@@ -152,7 +153,7 @@ export function parseHTML (html, options) {
         endTagLength = endTag.length
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1')
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {

From f8cb3a239332804808ca058d45609a860dbda55a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 25 Dec 2017 11:05:54 -0500
Subject: [PATCH 363/911] chore: fix lint

---
 .../modules/compiler/compiler-options.spec.js | 86 +++++++++----------
 1 file changed, 43 insertions(+), 43 deletions(-)

diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index c694807dc8d..161a329635d 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -9,58 +9,58 @@ describe('compile options', () => {
         <input type="text" v-model="msg" required max="8" v-validate:field1.group1.group2>
       </div>
     `, {
-      directives: {
-        validate (el, dir) {
-          if (dir.name === 'validate' && dir.arg) {
-            el.validate = {
-              field: dir.arg,
-              groups: dir.modifiers ? Object.keys(dir.modifiers) : []
+        directives: {
+          validate (el, dir) {
+            if (dir.name === 'validate' && dir.arg) {
+              el.validate = {
+                field: dir.arg,
+                groups: dir.modifiers ? Object.keys(dir.modifiers) : []
+              }
             }
           }
-        }
-      },
-      modules: [{
-        transformNode (el) {
-          el.validators = el.validators || []
-          const validators = ['required', 'min', 'max', 'pattern', 'maxlength', 'minlength']
-          validators.forEach(name => {
-            const rule = getAndRemoveAttr(el, name)
-            if (rule !== undefined) {
-              el.validators.push({ name, rule })
-            }
-          })
         },
-        genData (el) {
-          let data = ''
-          if (el.validate) {
-            data += `validate:${JSON.stringify(el.validate)},`
-          }
-          if (el.validators) {
-            data += `validators:${JSON.stringify(el.validators)},`
-          }
-          return data
-        },
-        transformCode (el, code) {
-        // check
-          if (!el.validate || !el.validators) {
-            return code
-          }
-          // setup validation result props
-          const result = { dirty: false } // define something other prop
-          el.validators.forEach(validator => {
-            result[validator.name] = null
-          })
-          // generate code
-          return `_c('validate',{props:{
+        modules: [{
+          transformNode (el) {
+            el.validators = el.validators || []
+            const validators = ['required', 'min', 'max', 'pattern', 'maxlength', 'minlength']
+            validators.forEach(name => {
+              const rule = getAndRemoveAttr(el, name)
+              if (rule !== undefined) {
+                el.validators.push({ name, rule })
+              }
+            })
+          },
+          genData (el) {
+            let data = ''
+            if (el.validate) {
+              data += `validate:${JSON.stringify(el.validate)},`
+            }
+            if (el.validators) {
+              data += `validators:${JSON.stringify(el.validators)},`
+            }
+            return data
+          },
+          transformCode (el, code) {
+            // check
+            if (!el.validate || !el.validators) {
+              return code
+            }
+            // setup validation result props
+            const result = { dirty: false } // define something other prop
+            el.validators.forEach(validator => {
+              result[validator.name] = null
+            })
+            // generate code
+            return `_c('validate',{props:{
           field:${JSON.stringify(el.validate.field)},
           groups:${JSON.stringify(el.validate.groups)},
           validators:${JSON.stringify(el.validators)},
           result:${JSON.stringify(result)},
           child:${code}}
         })`
-        }
-      }]
-    })
+          }
+        }]
+      })
     expect(render).not.toBeUndefined()
     expect(staticRenderFns).toEqual([])
     expect(errors).toEqual([])

From ff8fcd2e2b95694527018f7836bab781f8600d25 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Wed, 27 Dec 2017 10:33:37 +0800
Subject: [PATCH 364/911] feat(weex): support parse object literal in binding
 attrs and styles (#7291)

---
 package.json                                  |   2 +
 packages/weex-template-compiler/package.json  |   2 +
 .../compiler/modules/recycle-list/v-bind.js   |   5 +-
 src/platforms/weex/compiler/modules/style.js  |  10 +-
 src/platforms/weex/util/parser.js             |  60 ++++++++++
 test/weex/cases/cases.spec.js                 |   2 +-
 test/weex/compiler/parser.spec.js             | 105 ++++++++++++++++++
 7 files changed, 179 insertions(+), 7 deletions(-)
 create mode 100644 src/platforms/weex/util/parser.js
 create mode 100644 test/weex/compiler/parser.spec.js

diff --git a/package.json b/package.json
index 70a1447ca8e..eccfa22f650 100644
--- a/package.json
+++ b/package.json
@@ -59,6 +59,7 @@
   "devDependencies": {
     "@types/node": "^8.0.33",
     "@types/webpack": "^3.0.13",
+    "acorn": "^5.2.1",
     "babel-core": "^6.25.0",
     "babel-eslint": "^8.0.3",
     "babel-helper-vue-jsx-merge-props": "^2.0.2",
@@ -79,6 +80,7 @@
     "cz-conventional-changelog": "^2.0.0",
     "de-indent": "^1.0.2",
     "es6-promise": "^4.1.0",
+    "escodegen": "^1.8.1",
     "eslint": "^4.13.1",
     "eslint-loader": "^1.7.1",
     "eslint-plugin-flowtype": "^2.34.0",
diff --git a/packages/weex-template-compiler/package.json b/packages/weex-template-compiler/package.json
index 19c493a216e..ad08235d07f 100644
--- a/packages/weex-template-compiler/package.json
+++ b/packages/weex-template-compiler/package.json
@@ -18,6 +18,8 @@
   },
   "homepage": "https://github.com/vuejs/vue/tree/dev/packages/weex-template-compiler#readme",
   "dependencies": {
+    "acorn": "^5.2.1",
+    "escodegen": "^1.8.1",
     "he": "^1.1.0"
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
index b8d05a2c628..effdf351126 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -1,6 +1,7 @@
 /* @flow */
 
 import { camelize } from 'shared/util'
+import { generateBinding } from 'weex/util/parser'
 import { bindRE } from 'compiler/parser/index'
 import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
 
@@ -12,9 +13,7 @@ export function preTransformVBind (el: ASTElement, options: WeexCompilerOptions)
   for (const attr in el.attrsMap) {
     if (bindRE.test(attr)) {
       const name: string = parseAttrName(attr)
-      const value = {
-        '@binding': getAndRemoveAttr(el, attr)
-      }
+      const value = generateBinding(getAndRemoveAttr(el, attr))
       delete el.attrsMap[attr]
       addRawAttr(el, name, value)
     }
diff --git a/src/platforms/weex/compiler/modules/style.js b/src/platforms/weex/compiler/modules/style.js
index eb3c93a067a..7bf5027fa39 100644
--- a/src/platforms/weex/compiler/modules/style.js
+++ b/src/platforms/weex/compiler/modules/style.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { cached, camelize } from 'shared/util'
+import { cached, camelize, isPlainObject } from 'shared/util'
 import { parseText } from 'compiler/parser/text-parser'
 import {
   getAndRemoveAttr,
@@ -10,7 +10,7 @@ import {
 
 type StaticStyleResult = {
   dynamic: boolean,
-  styleResult: string
+  styleResult: string | Object | void
 };
 
 const normalize = cached(camelize)
@@ -27,12 +27,14 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
     )
   }
   if (!dynamic && styleResult) {
+    // $flow-disable-line
     el.staticStyle = styleResult
   }
   const styleBinding = getBindingAttr(el, 'style', false /* getStatic */)
   if (styleBinding) {
     el.styleBinding = styleBinding
   } else if (dynamic) {
+    // $flow-disable-line
     el.styleBinding = styleResult
   }
 }
@@ -53,7 +55,7 @@ function parseStaticStyle (staticStyle: ?string, options: CompilerOptions): Stat
   // "width: 200px; height: {{y}}" -> {width: 200, height: y}
   let dynamic = false
   let styleResult = ''
-  if (staticStyle) {
+  if (typeof staticStyle === 'string') {
     const styleList = staticStyle.trim().split(';').map(style => {
       const result = style.trim().split(':')
       if (result.length !== 2) {
@@ -71,6 +73,8 @@ function parseStaticStyle (staticStyle: ?string, options: CompilerOptions): Stat
     if (styleList.length) {
       styleResult = '{' + styleList.join(',') + '}'
     }
+  } else if (isPlainObject(staticStyle)) {
+    styleResult = JSON.stringify(staticStyle) || ''
   }
   return { dynamic, styleResult }
 }
diff --git a/src/platforms/weex/util/parser.js b/src/platforms/weex/util/parser.js
new file mode 100644
index 00000000000..081908e82b4
--- /dev/null
+++ b/src/platforms/weex/util/parser.js
@@ -0,0 +1,60 @@
+/* @flow */
+
+// import { warn } from 'core/util/index'
+
+// this will be preserved during build
+// $flow-disable-line
+const acorn = require('acorn') // $flow-disable-line
+const walk = require('acorn/dist/walk') // $flow-disable-line
+const escodegen = require('escodegen')
+
+export function nodeToBinding (node: Object): any {
+  switch (node.type) {
+    case 'Literal': return node.value
+    case 'Identifier':
+    case 'UnaryExpression':
+    case 'BinaryExpression':
+    case 'LogicalExpression':
+    case 'ConditionalExpression':
+    case 'MemberExpression': return { '@binding': escodegen.generate(node) }
+    case 'ArrayExpression': return node.elements.map(_ => nodeToBinding(_))
+    case 'ObjectExpression': {
+      const object = {}
+      node.properties.forEach(prop => {
+        if (!prop.key || prop.key.type !== 'Identifier') {
+          return
+        }
+        const key = escodegen.generate(prop.key)
+        const value = nodeToBinding(prop.value)
+        if (key && value) {
+          object[key] = value
+        }
+      })
+      return object
+    }
+    default: {
+      // warn(`Not support ${node.type}: "${escodegen.generate(node)}"`)
+      return ''
+    }
+  }
+}
+
+export function generateBinding (exp: ?string): any {
+  if (exp && typeof exp === 'string') {
+    let ast = null
+    try {
+      ast = acorn.parse(`(${exp})`)
+    } catch (e) {
+      // warn(`Failed to parse the expression: "${exp}"`)
+      return ''
+    }
+
+    let output = ''
+    walk.simple(ast, {
+      Expression (node) {
+        output = nodeToBinding(node)
+      }
+    })
+    return output
+  }
+}
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index e5825ec7435..6d073e553eb 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -64,7 +64,7 @@ describe('Usage', () => {
     it('text node', createRenderTestCase('recycle-list/text-node'))
     it('attributes', createRenderTestCase('recycle-list/attrs'))
     // it('class name', createRenderTestCase('recycle-list/classname'))
-    // it('inline style', createRenderTestCase('recycle-list/inline-style'))
+    it('inline style', createRenderTestCase('recycle-list/inline-style'))
     it('v-if', createRenderTestCase('recycle-list/v-if'))
     it('v-else', createRenderTestCase('recycle-list/v-else'))
     it('v-else-if', createRenderTestCase('recycle-list/v-else-if'))
diff --git a/test/weex/compiler/parser.spec.js b/test/weex/compiler/parser.spec.js
new file mode 100644
index 00000000000..1d560b5b44c
--- /dev/null
+++ b/test/weex/compiler/parser.spec.js
@@ -0,0 +1,105 @@
+import { generateBinding } from '../../../src/platforms/weex/util/parser'
+
+describe('expression parser', () => {
+  describe('generateBinding', () => {
+    it('primitive literal', () => {
+      expect(generateBinding('15')).toEqual(15)
+      expect(generateBinding('"xxx"')).toEqual('xxx')
+    })
+
+    it('identifiers', () => {
+      expect(generateBinding('x')).toEqual({ '@binding': 'x' })
+      expect(generateBinding('x.y')).toEqual({ '@binding': 'x.y' })
+      expect(generateBinding(`x.y['z']`)).toEqual({ '@binding': `x.y['z']` })
+    })
+
+    it('object literal', () => {
+      expect(generateBinding('{}')).toEqual({})
+      expect(generateBinding('{ abc: 25 }')).toEqual({ abc: 25 })
+      expect(generateBinding('{ abc: 25, def: "xxx" }')).toEqual({ abc: 25, def: 'xxx' })
+      expect(generateBinding('{ a: 3, b: { bb: "bb", bbb: { bbc: "BBC" } } }'))
+        .toEqual({ a: 3, b: { bb: 'bb', bbb: { bbc: 'BBC' }}})
+    })
+
+    it('array literal', () => {
+      expect(generateBinding('[]')).toEqual([])
+      expect(generateBinding('[{ abc: 25 }]')).toEqual([{ abc: 25 }])
+      expect(generateBinding('[{ abc: 25, def: ["xxx"] }]')).toEqual([{ abc: 25, def: ['xxx'] }])
+      expect(generateBinding('{ a: [3,16], b: [{ bb: ["aa","bb"], bbb: [{bbc:"BBC"}] }] }'))
+        .toEqual({ a: [3, 16], b: [{ bb: ['aa', 'bb'], bbb: [{ bbc: 'BBC' }] }] })
+    })
+
+    it('expressions', () => {
+      expect(generateBinding(`3 + 5`)).toEqual({ '@binding': `3 + 5` })
+      expect(generateBinding(`'x' + 2`)).toEqual({ '@binding': `'x' + 2` })
+      expect(generateBinding(`\`xx\` + 2`)).toEqual({ '@binding': `\`xx\` + 2` })
+      expect(generateBinding(`item.size * 23 + 'px'`)).toEqual({ '@binding': `item.size * 23 + 'px'` })
+    })
+
+    it('object bindings', () => {
+      expect(generateBinding(`{ color: textColor }`)).toEqual({
+        color: { '@binding': 'textColor' }
+      })
+      expect(generateBinding(`{ color: '#FF' + 66 * 100, fontSize: item.size }`)).toEqual({
+        color: { '@binding': `'#FF' + 66 * 100` },
+        fontSize: { '@binding': 'item.size' }
+      })
+      expect(generateBinding(`{
+        x: { xx: obj, xy: -2 + 5 },
+        y: {
+          yy: { yyy: obj.y || yy },
+          yz: typeof object.yz === 'string' ? object.yz : ''
+        }
+      }`)).toEqual({
+        x: { xx: { '@binding': 'obj' }, xy: { '@binding': '-2 + 5' }},
+        y: {
+          yy: { yyy: { '@binding': 'obj.y || yy' }},
+          yz: { '@binding': `typeof object.yz === 'string' ? object.yz : ''` }
+        }
+      })
+    })
+
+    it('array bindings', () => {
+      expect(generateBinding(`[textColor, 3 + 5, 'string']`)).toEqual([
+        { '@binding': 'textColor' },
+        { '@binding': '3 + 5' },
+        'string'
+      ])
+      expect(generateBinding(`[
+        { color: '#FF' + 66 * -100 },
+        item && item.style,
+        { fontSize: item.size | 0 }
+      ]`)).toEqual([
+        { color: { '@binding': `'#FF' + 66 * -100` }},
+        { '@binding': 'item && item.style' },
+        { fontSize: { '@binding': 'item.size | 0' }}
+      ])
+      expect(generateBinding(`[{
+        x: [{ xx: [fn instanceof Function ? 'function' : '' , 25] }],
+        y: {
+          yy: [{ yyy: [obj.yy.y, obj.y.yy] }],
+          yz: [object.yz, void 0]
+        }
+      }]`)).toEqual([{
+        x: [{ xx: [{ '@binding': `fn instanceof Function ? 'function' : ''` }, 25] }],
+        y: {
+          yy: [{ yyy: [{ '@binding': 'obj.yy.y' }, { '@binding': 'obj.y.yy' }] }],
+          yz: [{ '@binding': 'object.yz' }, { '@binding': 'void 0' }]
+        }
+      }])
+    })
+
+    it('unsupported bindings', () => {
+      expect(generateBinding('() => {}')).toEqual('')
+      expect(generateBinding('function(){}')).toEqual('')
+      expect(generateBinding('(function(){})()')).toEqual('')
+      expect(generateBinding('var abc = 35')).toEqual('')
+      expect(generateBinding('abc++')).toEqual('')
+      expect(generateBinding('x.y(0)')).toEqual('')
+      expect(generateBinding('class X {}')).toEqual('')
+      expect(generateBinding('if (typeof x == null) { 35 }')).toEqual('')
+      expect(generateBinding('while (x == null)')).toEqual('')
+      expect(generateBinding('new Function()')).toEqual('')
+    })
+  })
+})

From f319bef532dd0d3cae4302e7a6a038d45e7363ba Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Wed, 27 Dec 2017 10:33:48 +0800
Subject: [PATCH 365/911] chore: update weex flow type annotations (#7322)

---
 .eslintrc                              |  3 +-
 flow/weex.js                           | 52 ++++++++++++++++++++++----
 src/core/util/env.js                   |  1 -
 src/platforms/weex/runtime/node-ops.js | 36 ++++++++++--------
 src/platforms/weex/util/index.js       |  2 +-
 5 files changed, 69 insertions(+), 25 deletions(-)

diff --git a/.eslintrc b/.eslintrc
index 523d283e8a4..f5845425106 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -8,6 +8,7 @@
     "plugin:flowtype/recommended"
   ],
   "globals": {
-    "__WEEX__": true
+    "__WEEX__": true,
+    "WXEnvironment": true
   }
 }
diff --git a/flow/weex.js b/flow/weex.js
index cef6f0ba2f7..2834313f50e 100644
--- a/flow/weex.js
+++ b/flow/weex.js
@@ -1,8 +1,11 @@
 // global flag to be compiled away
 declare var __WEEX__: boolean;
 
+// global object in Weex
+declare var WXEnvironment: WeexEnvironment;
+
 declare type Weex = {
-  config: Object;
+  config: WeexConfigAPI;
   document: WeexDocument;
   requireModule: (name: string) => Object | void;
   supports: (condition: string) => boolean | void;
@@ -10,10 +13,37 @@ declare type Weex = {
   isRegisteredComponent: (name: string) => boolean;
 };
 
+declare type WeexConfigAPI = {
+  bundleUrl: string; // === weex.document.URL
+  bundleType: string;
+  env: WeexEnvironment; // === WXEnvironment
+};
+
+declare type WeexEnvironment = {
+  platform: string; // could be "Web", "iOS", "Android"
+  weexVersion: string; // the version of WeexSDK
+
+  osName: string; // could be "iOS", "Android" or others
+  osVersion: string;
+  appName: string; // mobile app name or browser name
+  appVersion: string;
+
+  // informations of current running device
+  deviceModel: string; // phone device model
+  deviceWidth: number;
+  deviceHeight: number;
+  scale: number;
+
+  // only available on the web
+  userAgent?: string;
+  dpr?: number;
+  rem?: number;
+};
+
 declare interface WeexDocument {
-  id: string | number;
+  id: string;
   URL: string;
-  taskCenter: Object;
+  taskCenter: WeexTaskCenter;
 
   open: () => void;
   close: () => void;
@@ -23,11 +53,19 @@ declare interface WeexDocument {
   destroy: () => void;
 };
 
+declare interface WeexTaskCenter {
+  instanceId: string;
+  callbackManager: Object;
+  send: (type: string, params: Object, args: Array<any>, options?: Object) => void;
+  registerHook: (componentId: string, type: string, hook: string, fn: Function) => void;
+  updateData: (componentId: string, data: Object | void, callback?: Function) => void;
+};
+
 declare interface WeexElement {
   nodeType: number;
-  nodeId: string | number;
+  nodeId: string;
   type: string;
-  ref: string | number;
+  ref: string;
   text?: string;
 
   parentNode: WeexElement | void;
@@ -47,11 +85,11 @@ declare interface WeexElement {
   removeEvent: (type: string) => void;
   fireEvent: (type: string) => void;
   destroy: () => void;
-}
+};
 
 declare type WeexInstanceOption = {
   instanceId: string;
-  config: Object;
+  config: WeexConfigAPI;
   document: WeexDocument;
   Vue?: GlobalAPI;
   app?: Component;
diff --git a/src/core/util/env.js b/src/core/util/env.js
index c2e80df6cd2..dc332e280dc 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -1,5 +1,4 @@
 /* @flow */
-declare var WXEnvironment: any;
 
 // can we use __proto__?
 export const hasProto = '__proto__' in {}
diff --git a/src/platforms/weex/runtime/node-ops.js b/src/platforms/weex/runtime/node-ops.js
index 303c81945ee..0431f7c6d64 100755
--- a/src/platforms/weex/runtime/node-ops.js
+++ b/src/platforms/weex/runtime/node-ops.js
@@ -1,27 +1,31 @@
-/* globals document */
-// document is injected by weex factory wrapper
+/* @flow */
+declare var document: WeexDocument;
 
 import TextNode from 'weex/runtime/text-node'
 
 export const namespaceMap = {}
 
-export function createElement (tagName) {
+export function createElement (tagName: string): WeexElement {
   return document.createElement(tagName)
 }
 
-export function createElementNS (namespace, tagName) {
+export function createElementNS (namespace: string, tagName: string): WeexElement {
   return document.createElement(namespace + ':' + tagName)
 }
 
-export function createTextNode (text) {
+export function createTextNode (text: string) {
   return new TextNode(text)
 }
 
-export function createComment (text) {
+export function createComment (text: string) {
   return document.createComment(text)
 }
 
-export function insertBefore (node, target, before) {
+export function insertBefore (
+  node: WeexElement,
+  target: WeexElement,
+  before: WeexElement
+) {
   if (target.nodeType === 3) {
     if (node.type === 'text') {
       node.setAttr('value', target.text)
@@ -36,7 +40,7 @@ export function insertBefore (node, target, before) {
   node.insertBefore(target, before)
 }
 
-export function removeChild (node, child) {
+export function removeChild (node: WeexElement, child: WeexElement) {
   if (child.nodeType === 3) {
     node.setAttr('value', '')
     return
@@ -44,7 +48,7 @@ export function removeChild (node, child) {
   node.removeChild(child)
 }
 
-export function appendChild (node, child) {
+export function appendChild (node: WeexElement, child: WeexElement) {
   if (child.nodeType === 3) {
     if (node.type === 'text') {
       node.setAttr('value', child.text)
@@ -60,22 +64,24 @@ export function appendChild (node, child) {
   node.appendChild(child)
 }
 
-export function parentNode (node) {
+export function parentNode (node: WeexElement): WeexElement | void {
   return node.parentNode
 }
 
-export function nextSibling (node) {
+export function nextSibling (node: WeexElement): WeexElement | void {
   return node.nextSibling
 }
 
-export function tagName (node) {
+export function tagName (node: WeexElement): string {
   return node.type
 }
 
-export function setTextContent (node, text) {
-  node.parentNode.setAttr('value', text)
+export function setTextContent (node: WeexElement, text: string) {
+  if (node.parentNode) {
+    node.parentNode.setAttr('value', text)
+  }
 }
 
-export function setAttribute (node, key, val) {
+export function setAttribute (node: WeexElement, key: string, val: any) {
   node.setAttr(key, val)
 }
diff --git a/src/platforms/weex/util/index.js b/src/platforms/weex/util/index.js
index 6d90307fbb8..8181d70eafb 100755
--- a/src/platforms/weex/util/index.js
+++ b/src/platforms/weex/util/index.js
@@ -1,5 +1,5 @@
 /* @flow */
-declare var document: Object;
+declare var document: WeexDocument;
 
 import { warn } from 'core/util/index'
 

From 6be9fdbc8374225b98620cae6d87d97d861913cc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 30 Dec 2017 20:01:57 -0500
Subject: [PATCH 366/911] chore: avoid production tip during tests

---
 src/platforms/web/runtime/index.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/index.js b/src/platforms/web/runtime/index.js
index 3751acecc53..71fe444a19d 100644
--- a/src/platforms/web/runtime/index.js
+++ b/src/platforms/web/runtime/index.js
@@ -48,7 +48,11 @@ Vue.nextTick(() => {
   if (config.devtools) {
     if (devtools) {
       devtools.emit('init', Vue)
-    } else if (process.env.NODE_ENV !== 'production' && isChrome) {
+    } else if (
+      process.env.NODE_ENV !== 'production' &&
+      process.env.NODE_ENV !== 'test' &&
+      isChrome
+    ) {
       console[console.info ? 'info' : 'log'](
         'Download the Vue Devtools extension for a better development experience:\n' +
         'https://github.com/vuejs/vue-devtools'
@@ -56,6 +60,7 @@ Vue.nextTick(() => {
     }
   }
   if (process.env.NODE_ENV !== 'production' &&
+    process.env.NODE_ENV !== 'test' &&
     config.productionTip !== false &&
     inBrowser && typeof console !== 'undefined'
   ) {

From 400aa651ba1648185274c10aa83c94cb9d8eac56 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Wed, 3 Jan 2018 00:21:05 +0800
Subject: [PATCH 367/911] chore: fix setup script (#7364)

---
 scripts/setup.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/setup.js b/scripts/setup.js
index 3427c5aa966..b614bd875db 100644
--- a/scripts/setup.js
+++ b/scripts/setup.js
@@ -2,9 +2,9 @@ const { test, ln, chmod } = require('shelljs')
 
 function installHooks () {
   if (test('-e', '.git/hooks')) {
-    ln('-sf', '../../build/git-hooks/pre-commit', '.git/hooks/pre-commit')
+    ln('-sf', '../../scripts/git-hooks/pre-commit', '.git/hooks/pre-commit')
     chmod('+x', '.git/hooks/pre-commit')
-    ln('-sf', '../../build/git-hooks/commit-msg', '.git/hooks/commit-msg')
+    ln('-sf', '../../scripts/git-hooks/commit-msg', '.git/hooks/commit-msg')
     chmod('+x', '.git/hooks/commit-msg')
   }
 }

From 5b4e6679cbfabd7a6229e86f10c300bcc1b2f815 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 2 Jan 2018 23:44:27 -0500
Subject: [PATCH 368/911] chore: update sponsors

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 67398b50502..11111ad2cd9 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -33,8 +33,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td>
-        <a href="https://www.infinitynewtab.com/donate/index.html" target="_blank">
-          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/infinitynewtab.png">
+        <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank">
+          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
     </tr>
diff --git a/README.md b/README.md
index d6b60229019..16e7b0584c4 100644
--- a/README.md
+++ b/README.md
@@ -46,8 +46,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td>
-        <a href="https://www.infinitynewtab.com/donate/index.html" target="_blank">
-          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/infinitynewtab.png">
+        <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank">
+          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
     </tr>

From 6ee684983b1f3384a4050d7c47cee7c6a325db8b Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Wed, 3 Jan 2018 14:33:48 +0800
Subject: [PATCH 369/911] fix(types): contravariant generic default in
 ComponentOption (#7369)

---
 types/options.d.ts         |  7 ++++---
 types/test/options-test.ts | 20 ++++++++++++++++----
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 8401a93b983..a54993fff5d 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -6,16 +6,17 @@ type Constructor = {
 }
 
 // we don't support infer props in async component
-export type Component<Data=DefaultData<Vue>, Methods=DefaultMethods<Vue>, Computed=DefaultComputed, Props=DefaultProps> =
+// N.B. ComponentOptions<V> is contravariant, the default generic should be bottom type
+export type Component<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps> =
   | typeof Vue
   | FunctionalComponentOptions<Props>
-  | ComponentOptions<Vue, Data, Methods, Computed, Props>
+  | ComponentOptions<never, Data, Methods, Computed, Props>
 
 interface EsModuleComponent {
   default: Component
 }
 
-export type AsyncComponent<Data=DefaultData<Vue>, Methods=DefaultMethods<Vue>, Computed=DefaultComputed, Props=DefaultProps> = (
+export type AsyncComponent<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps> = (
   resolve: (component: Component<Data, Methods, Computed, Props>) => void,
   reject: (reason?: any) => void
 ) => Promise<Component | EsModuleComponent> | void;
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index a62d9bb259a..a14560fe1b3 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -1,11 +1,23 @@
 import Vue, { VNode } from "../index";
-import { AsyncComponent, ComponentOptions, FunctionalComponentOptions } from "../index";
+import { AsyncComponent, ComponentOptions, FunctionalComponentOptions, Component } from "../index";
 import { CreateElement } from "../vue";
 
-interface Component extends Vue {
+interface MyComponent extends Vue {
   a: number;
 }
 
+const option: ComponentOptions<MyComponent> = {
+  data() {
+    return {
+      a: 123
+    }
+  }
+}
+
+// contravariant generic should use never
+const anotherOption: ComponentOptions<never> = option
+const componentType: Component = option
+
 Vue.component('sub-component', {
   components: {
     a: Vue.component(""),
@@ -41,10 +53,10 @@ Vue.component('string-prop', {
 });
 
 class User {
-  private u: number
+  private u = 1
 }
 class Cat {
-  private u: number
+  private u = 1
 }
 
 Vue.component('union-prop', {

From 05299610ea3e89ddbcfe4d8ede0c298223766423 Mon Sep 17 00:00:00 2001
From: AchillesJ <xujiongbo@gmail.com>
Date: Sat, 6 Jan 2018 06:44:44 +0800
Subject: [PATCH 370/911] fix(vdom): svg inside foreignObject should be
 rendered with correct namespace (fix #7330) (#7350)

* add failed test case

* fix failed test case

* fix(vdom): svg inside foreignObject should be rendered with correct namespace

* adjust comments
---
 src/core/vdom/create-element.js               | 3 ++-
 test/unit/modules/vdom/create-element.spec.js | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index 248bcff18f9..c5cde2c6424 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -139,7 +139,8 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (let i = 0, l = vnode.children.length; i < l; i++) {
       const child = vnode.children[i]
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force)
       }
     }
diff --git a/test/unit/modules/vdom/create-element.spec.js b/test/unit/modules/vdom/create-element.spec.js
index f2fddcf6d14..16a5e4a8a7c 100644
--- a/test/unit/modules/vdom/create-element.spec.js
+++ b/test/unit/modules/vdom/create-element.spec.js
@@ -135,10 +135,12 @@ describe('create-element', () => {
   it('render svg foreignObject with correct namespace', () => {
     const vm = new Vue({})
     const h = vm.$createElement
-    const vnode = h('svg', [h('foreignObject', [h('p')])])
+    const vnode = h('svg', [h('foreignObject', [h('p'), h('svg')])])
     expect(vnode.ns).toBe('svg')
     expect(vnode.children[0].ns).toBe('svg')
     expect(vnode.children[0].children[0].ns).toBeUndefined()
+    // #7330
+    expect(vnode.children[0].children[1].ns).toBe('svg')
   })
 
   // #6642

From 5191f13472d1fc37bdd601079970201fde6bf13e Mon Sep 17 00:00:00 2001
From: Guillaume Chau <alphadelta.fg@gmail.com>
Date: Fri, 5 Jan 2018 23:45:59 +0100
Subject: [PATCH 371/911] fix(transition): should not add transition class when
 cancelled (#7391)

fix #7390
---
 .../web/runtime/modules/transition.js         | 28 +++++++-----
 .../features/transition/transition.spec.js    | 44 +++++++++++++++++++
 2 files changed, 60 insertions(+), 12 deletions(-)

diff --git a/src/platforms/web/runtime/modules/transition.js b/src/platforms/web/runtime/modules/transition.js
index 0d099c9947f..0796b5dad5e 100644
--- a/src/platforms/web/runtime/modules/transition.js
+++ b/src/platforms/web/runtime/modules/transition.js
@@ -149,13 +149,15 @@ export function enter (vnode: VNodeWithData, toggleDisplay: ?() => void) {
     addTransitionClass(el, startClass)
     addTransitionClass(el, activeClass)
     nextFrame(() => {
-      addTransitionClass(el, toClass)
       removeTransitionClass(el, startClass)
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration)
-        } else {
-          whenTransitionEnds(el, type, cb)
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass)
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration)
+          } else {
+            whenTransitionEnds(el, type, cb)
+          }
         }
       }
     })
@@ -257,13 +259,15 @@ export function leave (vnode: VNodeWithData, rm: Function) {
       addTransitionClass(el, leaveClass)
       addTransitionClass(el, leaveActiveClass)
       nextFrame(() => {
-        addTransitionClass(el, leaveToClass)
         removeTransitionClass(el, leaveClass)
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration)
-          } else {
-            whenTransitionEnds(el, type, cb)
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass)
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration)
+            } else {
+              whenTransitionEnds(el, type, cb)
+            }
           }
         }
       })
diff --git a/test/unit/features/transition/transition.spec.js b/test/unit/features/transition/transition.spec.js
index 5e4dcc7eac3..f7b08e376a5 100644
--- a/test/unit/features/transition/transition.spec.js
+++ b/test/unit/features/transition/transition.spec.js
@@ -612,6 +612,50 @@ if (!isIE9) {
       }).then(done)
     })
 
+    it('leave transition with v-show: cancelled on next frame', done => {
+      const vm = new Vue({
+        template: `
+          <div>
+            <transition name="test">
+              <div v-show="ok" class="test">foo</div>
+            </transition>
+          </div>
+        `,
+        data: { ok: true }
+      }).$mount(el)
+
+      vm.ok = false
+      waitForUpdate(() => {
+        vm.ok = true
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test test-enter-active test-enter-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children[0].className).toBe('test')
+      }).then(done)
+    })
+
+    it('enter transition with v-show: cancelled on next frame', done => {
+      const vm = new Vue({
+        template: `
+          <div>
+            <transition name="test">
+              <div v-show="ok" class="test">foo</div>
+            </transition>
+          </div>
+        `,
+        data: { ok: false }
+      }).$mount(el)
+
+      vm.ok = true
+      waitForUpdate(() => {
+        vm.ok = false
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test test-leave-active test-leave-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children[0].className).toBe('test')
+      }).then(done)
+    })
+
     it('animations', done => {
       const vm = new Vue({
         template: `

From a6a9d6d05ac7cb4fa62a3ecc6725fadfb0eebd3e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 6 Jan 2018 10:08:47 -0500
Subject: [PATCH 372/911] workflow: improve git hooks setup

---
 .github/COMMIT_CONVENTION.md |   8 +
 .github/CONTRIBUTING.md      |  10 +-
 package-lock.json            | 526 +++++++++++++++++++++++++++++++++++
 package.json                 |  16 +-
 scripts/setup.js             |  12 -
 scripts/verify-commit-msg.js |  18 ++
 6 files changed, 568 insertions(+), 22 deletions(-)
 delete mode 100644 scripts/setup.js
 create mode 100644 scripts/verify-commit-msg.js

diff --git a/.github/COMMIT_CONVENTION.md b/.github/COMMIT_CONVENTION.md
index 59e91abe7a8..6d2813fb663 100644
--- a/.github/COMMIT_CONVENTION.md
+++ b/.github/COMMIT_CONVENTION.md
@@ -2,6 +2,14 @@
 
 > This is adapted from [Angular's commit convention](https://github.com/conventional-changelog/conventional-changelog/blob/master/packages/conventional-changelog-angular/convention.md).
 
+#### TL;DR:
+
+Messages must be matched by the following regex:
+
+``` js
+/^(revert: )?(feat|fix|docs|style|refactor|perf|test|workflow|ci|chore|types)(\(.+\))?: .{1,50}/
+```
+
 #### Examples
 
 Appears under "Features" header, `compiler` subheader:
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 8a0a309122d..a5b9f985b6e 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -40,18 +40,12 @@ You will need [Node.js](http://nodejs.org) **version 6+** and [Java Runtime Envi
 After cloning the repo, run:
 
 ``` bash
-$ npm install
-& npm run setup
+$ npm install # or yarn
 ```
 
-The `setup` script links two git hooks:
-
-- `pre-commit`: runs ESLint on staged files.
-- `commit-msg`: validates commit message format (see below).
-
 ### Committing Changes
 
-Commit messages should follow the [commit message convention](./COMMIT_CONVENTION.md) so that changelogs can be automatically generated. If git hooks have been properly linked, commit messages will be automatically validated upon commit. It is recommended to use `npm run commit` instead of `git commit`, which provides an interactive CLI for generating proper commit messages.
+Commit messages should follow the [commit message convention](./COMMIT_CONVENTION.md) so that changelogs can be automatically generated. Commit messages will be automatically validated upon commit. If you are not familiar with the commit message convention, you can use `npm run commit` instead of `git commit`, which provides an interactive CLI for generating proper commit messages.
 
 ### Commonly used NPM scripts
 
diff --git a/package-lock.json b/package-lock.json
index 24a0ab9d3a6..6389efebcce 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -310,6 +310,12 @@
       "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
       "dev": true
     },
+    "any-observable": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/any-observable/-/any-observable-0.2.0.tgz",
+      "integrity": "sha1-xnhwBYADV5AJCD9UrAq6+1wz0kI=",
+      "dev": true
+    },
     "anymatch": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
@@ -320,6 +326,12 @@
         "normalize-path": "2.1.1"
       }
     },
+    "app-root-path": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/app-root-path/-/app-root-path-2.0.1.tgz",
+      "integrity": "sha1-zWLc+OT9WkF+/GZNLlsQZTxlG0Y=",
+      "dev": true
+    },
     "archiver": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/archiver/-/archiver-1.3.0.tgz",
@@ -1643,6 +1655,12 @@
         "request": "2.83.0"
       }
     },
+    "ci-info": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/ci-info/-/ci-info-1.1.2.tgz",
+      "integrity": "sha512-uTGIPNx/nSpBdsF6xnseRXLLtfr9VLqkz8ZqHXr3Y7b6SftyRxBGjwMtJj1OhNbmlc1wZzLNAlAcvyIiE8a6ZA==",
+      "dev": true
+    },
     "cipher-base": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.4.tgz",
@@ -1668,6 +1686,30 @@
         "restore-cursor": "1.0.1"
       }
     },
+    "cli-spinners": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-0.1.2.tgz",
+      "integrity": "sha1-u3ZNiOGF+54eaiofGXcjGPYF4xw=",
+      "dev": true
+    },
+    "cli-truncate": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/cli-truncate/-/cli-truncate-0.2.1.tgz",
+      "integrity": "sha1-nxXPuwcFAFNpIWxiasfQWrkN1XQ=",
+      "dev": true,
+      "requires": {
+        "slice-ansi": "0.0.4",
+        "string-width": "1.0.2"
+      },
+      "dependencies": {
+        "slice-ansi": {
+          "version": "0.0.4",
+          "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-0.0.4.tgz",
+          "integrity": "sha1-7b+JA/ZvfOL46v1s7tZeJkyDGzU=",
+          "dev": true
+        }
+      }
+    },
     "cli-width": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.0.tgz",
@@ -2344,6 +2386,29 @@
       "integrity": "sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c=",
       "dev": true
     },
+    "cosmiconfig": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-3.1.0.tgz",
+      "integrity": "sha512-zedsBhLSbPBms+kE7AH4vHg6JsKDz6epSv2/+5XHs8ILHlgDciSJfSWf8sX9aQ52Jb7KI7VswUTsLpR/G0cr2Q==",
+      "dev": true,
+      "requires": {
+        "is-directory": "0.3.1",
+        "js-yaml": "3.10.0",
+        "parse-json": "3.0.0",
+        "require-from-string": "2.0.1"
+      },
+      "dependencies": {
+        "parse-json": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-3.0.0.tgz",
+          "integrity": "sha1-+m9HsY4jgm6tMvJj50TQ4ehH+xM=",
+          "dev": true,
+          "requires": {
+            "error-ex": "1.3.1"
+          }
+        }
+      }
+    },
     "crc": {
       "version": "3.5.0",
       "resolved": "https://registry.npmjs.org/crc/-/crc-3.5.0.tgz",
@@ -2537,6 +2602,12 @@
       "integrity": "sha512-vKQ9DTQPN1FLYiiEEOQ6IBGFqvjCa5rSK3cWMy/Nespm5d/x3dGFT9UBZnkLxCwua/IXBi2TYnwTEpsOvhC4UQ==",
       "dev": true
     },
+    "date-fns": {
+      "version": "1.29.0",
+      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-1.29.0.tgz",
+      "integrity": "sha512-lbTXWZ6M20cWH8N9S6afb0SBm6tMk+uUg6z3MqHPKE9atmsY3kJkTm8vKe93izJ2B2+q5MV990sM2CHgtAZaOw==",
+      "dev": true
+    },
     "date-now": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/date-now/-/date-now-0.1.4.tgz",
@@ -2830,6 +2901,12 @@
       "integrity": "sha1-zIcsFoiArjxxiXYv1f/ACJbJUYo=",
       "dev": true
     },
+    "elegant-spinner": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/elegant-spinner/-/elegant-spinner-1.0.1.tgz",
+      "integrity": "sha1-2wQ1IcldfjA/2PNFvtwzSc+wcp4=",
+      "dev": true
+    },
     "elliptic": {
       "version": "6.4.0",
       "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz",
@@ -3737,6 +3814,12 @@
         "merge": "1.2.0"
       }
     },
+    "find-parent-dir": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/find-parent-dir/-/find-parent-dir-0.3.0.tgz",
+      "integrity": "sha1-M8RLQpqysvBkYpnF+fcY83b/jVQ=",
+      "dev": true
+    },
     "find-root": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/find-root/-/find-root-1.0.0.tgz",
@@ -4871,6 +4954,12 @@
       "integrity": "sha1-9wLmMSfn4jHBYKgMFVSstw1QR+U=",
       "dev": true
     },
+    "get-own-enumerable-property-symbols": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-2.0.1.tgz",
+      "integrity": "sha512-TtY/sbOemiMKPRUDDanGCSgBYe7Mf0vbRsWnBZ+9yghpZ1MvcpSpuZFjHdEeY/LZjZy0vdLjS77L6HosisFiug==",
+      "dev": true
+    },
     "get-pkg-repo": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/get-pkg-repo/-/get-pkg-repo-1.4.0.tgz",
@@ -5514,6 +5603,21 @@
         "builtin-modules": "1.1.1"
       }
     },
+    "is-ci": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-ci/-/is-ci-1.1.0.tgz",
+      "integrity": "sha512-c7TnwxLePuqIlxHgr7xtxzycJPegNHFuIrBkwbf8hc58//+Op1CqFkyS+xnIMkwn9UsJIwc174BIjkyBmSpjKg==",
+      "dev": true,
+      "requires": {
+        "ci-info": "1.1.2"
+      }
+    },
+    "is-directory": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/is-directory/-/is-directory-0.3.1.tgz",
+      "integrity": "sha1-YTObbyR1/Hcv2cnYP1yFddwVSuE=",
+      "dev": true
+    },
     "is-dotfile": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/is-dotfile/-/is-dotfile-1.0.3.tgz",
@@ -5601,6 +5705,15 @@
       "integrity": "sha1-PkcprB9f3gJc19g6iW2rn09n2w8=",
       "dev": true
     },
+    "is-observable": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/is-observable/-/is-observable-0.2.0.tgz",
+      "integrity": "sha1-s2ExHYPG5dcmyr9eJQsCNxBvWuI=",
+      "dev": true,
+      "requires": {
+        "symbol-observable": "0.2.4"
+      }
+    },
     "is-path-cwd": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-path-cwd/-/is-path-cwd-1.0.0.tgz",
@@ -5649,6 +5762,12 @@
       "integrity": "sha1-V/4cTkhHTt1lsJkR8msc1Ald2oQ=",
       "dev": true
     },
+    "is-regexp": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/is-regexp/-/is-regexp-1.0.0.tgz",
+      "integrity": "sha1-/S2INUXEa6xaYz57mgnof6LLUGk=",
+      "dev": true
+    },
     "is-resolvable": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-resolvable/-/is-resolvable-1.0.0.tgz",
@@ -5844,6 +5963,24 @@
       "integrity": "sha1-vMl5rh+f0FcB5F5S5l06XWPxok4=",
       "dev": true
     },
+    "jest-get-type": {
+      "version": "21.2.0",
+      "resolved": "https://registry.npmjs.org/jest-get-type/-/jest-get-type-21.2.0.tgz",
+      "integrity": "sha512-y2fFw3C+D0yjNSDp7ab1kcd6NUYfy3waPTlD8yWkAtiocJdBRQqNoRqVfMNxgj+IjT0V5cBIHJO0z9vuSSZ43Q==",
+      "dev": true
+    },
+    "jest-validate": {
+      "version": "21.2.1",
+      "resolved": "https://registry.npmjs.org/jest-validate/-/jest-validate-21.2.1.tgz",
+      "integrity": "sha512-k4HLI1rZQjlU+EC682RlQ6oZvLrE5SCh3brseQc24vbZTxzT/k/3urar5QMCVgjadmSO7lECeGdc6YxnM3yEGg==",
+      "dev": true,
+      "requires": {
+        "chalk": "2.3.0",
+        "jest-get-type": "21.2.0",
+        "leven": "2.1.0",
+        "pretty-format": "21.2.1"
+      }
+    },
     "js-tokens": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
@@ -6207,6 +6344,12 @@
         "invert-kv": "1.0.0"
       }
     },
+    "leven": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/leven/-/leven-2.1.0.tgz",
+      "integrity": "sha1-wuep93IJTe6dNCAq6KzORoeHVYA=",
+      "dev": true
+    },
     "levn": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz",
@@ -6217,6 +6360,209 @@
         "type-check": "0.3.2"
       }
     },
+    "lint-staged": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/lint-staged/-/lint-staged-6.0.0.tgz",
+      "integrity": "sha512-ZUftK94S4vedpQG1LlA2tc2AuQXXBwc+1lB+j8SEfG5+p2dqu3Ug8iYQ8jdap+uLkhDw4OaJXqE+CZ/L+vfv+Q==",
+      "dev": true,
+      "requires": {
+        "app-root-path": "2.0.1",
+        "chalk": "2.3.0",
+        "commander": "2.12.2",
+        "cosmiconfig": "3.1.0",
+        "debug": "3.1.0",
+        "dedent": "0.7.0",
+        "execa": "0.8.0",
+        "find-parent-dir": "0.3.0",
+        "is-glob": "4.0.0",
+        "jest-validate": "21.2.1",
+        "listr": "0.13.0",
+        "lodash": "4.17.4",
+        "log-symbols": "2.1.0",
+        "minimatch": "3.0.4",
+        "npm-which": "3.0.1",
+        "p-map": "1.2.0",
+        "path-is-inside": "1.0.2",
+        "pify": "3.0.0",
+        "staged-git-files": "0.0.4",
+        "stringify-object": "3.2.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "dedent": {
+          "version": "0.7.0",
+          "resolved": "https://registry.npmjs.org/dedent/-/dedent-0.7.0.tgz",
+          "integrity": "sha1-JJXduvbrh0q7Dhvp3yLS5aVEMmw=",
+          "dev": true
+        },
+        "execa": {
+          "version": "0.8.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-0.8.0.tgz",
+          "integrity": "sha1-2NdrvBtVIX7RkP1t1J08d07PyNo=",
+          "dev": true,
+          "requires": {
+            "cross-spawn": "5.1.0",
+            "get-stream": "3.0.0",
+            "is-stream": "1.1.0",
+            "npm-run-path": "2.0.2",
+            "p-finally": "1.0.0",
+            "signal-exit": "3.0.2",
+            "strip-eof": "1.0.0"
+          }
+        },
+        "is-extglob": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
+          "integrity": "sha1-qIwCU1eR8C7TfHahueqXc8gz+MI=",
+          "dev": true
+        },
+        "is-glob": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.0.tgz",
+          "integrity": "sha1-lSHHaEXMJhCoUgPd8ICpWML/q8A=",
+          "dev": true,
+          "requires": {
+            "is-extglob": "2.1.1"
+          }
+        }
+      }
+    },
+    "listr": {
+      "version": "0.13.0",
+      "resolved": "https://registry.npmjs.org/listr/-/listr-0.13.0.tgz",
+      "integrity": "sha1-ILsLowuuZg7oTMBQPfS+PVYjiH0=",
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "cli-truncate": "0.2.1",
+        "figures": "1.7.0",
+        "indent-string": "2.1.0",
+        "is-observable": "0.2.0",
+        "is-promise": "2.1.0",
+        "is-stream": "1.1.0",
+        "listr-silent-renderer": "1.1.1",
+        "listr-update-renderer": "0.4.0",
+        "listr-verbose-renderer": "0.4.1",
+        "log-symbols": "1.0.2",
+        "log-update": "1.0.2",
+        "ora": "0.2.3",
+        "p-map": "1.2.0",
+        "rxjs": "5.5.6",
+        "stream-to-observable": "0.2.0",
+        "strip-ansi": "3.0.1"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
+          }
+        },
+        "log-symbols": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-1.0.2.tgz",
+          "integrity": "sha1-N2/3tY6jCGoPCfrMdGF+ylAeGhg=",
+          "dev": true,
+          "requires": {
+            "chalk": "1.1.3"
+          }
+        }
+      }
+    },
+    "listr-silent-renderer": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz",
+      "integrity": "sha1-kktaN1cVN3C/Go4/v3S4u/P5JC4=",
+      "dev": true
+    },
+    "listr-update-renderer": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/listr-update-renderer/-/listr-update-renderer-0.4.0.tgz",
+      "integrity": "sha1-NE2YDaLKLosUW6MFkI8yrj9MyKc=",
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "cli-truncate": "0.2.1",
+        "elegant-spinner": "1.0.1",
+        "figures": "1.7.0",
+        "indent-string": "3.2.0",
+        "log-symbols": "1.0.2",
+        "log-update": "1.0.2",
+        "strip-ansi": "3.0.1"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
+          }
+        },
+        "indent-string": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/indent-string/-/indent-string-3.2.0.tgz",
+          "integrity": "sha1-Sl/W0nzDMvN+VBmlBNu4NxBckok=",
+          "dev": true
+        },
+        "log-symbols": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-1.0.2.tgz",
+          "integrity": "sha1-N2/3tY6jCGoPCfrMdGF+ylAeGhg=",
+          "dev": true,
+          "requires": {
+            "chalk": "1.1.3"
+          }
+        }
+      }
+    },
+    "listr-verbose-renderer": {
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/listr-verbose-renderer/-/listr-verbose-renderer-0.4.1.tgz",
+      "integrity": "sha1-ggb0z21S3cWCfl/RSYng6WWTOjU=",
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "cli-cursor": "1.0.2",
+        "date-fns": "1.29.0",
+        "figures": "1.7.0"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
+          }
+        }
+      }
+    },
     "load-json-file": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz",
@@ -6537,6 +6883,16 @@
         "chalk": "2.3.0"
       }
     },
+    "log-update": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/log-update/-/log-update-1.0.2.tgz",
+      "integrity": "sha1-GZKfZMQJPS0ucHWh2tivWcKWuNE=",
+      "dev": true,
+      "requires": {
+        "ansi-escapes": "1.4.0",
+        "cli-cursor": "1.0.2"
+      }
+    },
     "log4js": {
       "version": "0.6.38",
       "resolved": "https://registry.npmjs.org/log4js/-/log4js-0.6.38.tgz",
@@ -7036,6 +7392,15 @@
         "remove-trailing-separator": "1.1.0"
       }
     },
+    "npm-path": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/npm-path/-/npm-path-2.0.4.tgz",
+      "integrity": "sha512-IFsj0R9C7ZdR5cP+ET342q77uSRdtWOlWpih5eC+lu29tIDbNEgDbzgVJ5UFvYHWhxDZ5TFkJafFioO0pPQjCw==",
+      "dev": true,
+      "requires": {
+        "which": "1.3.0"
+      }
+    },
     "npm-run-path": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
@@ -7045,6 +7410,17 @@
         "path-key": "2.0.1"
       }
     },
+    "npm-which": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/npm-which/-/npm-which-3.0.1.tgz",
+      "integrity": "sha1-kiXybsOihcIJyuZ8OxGmtKtxQKo=",
+      "dev": true,
+      "requires": {
+        "commander": "2.12.2",
+        "npm-path": "2.0.4",
+        "which": "1.3.0"
+      }
+    },
     "null-check": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/null-check/-/null-check-1.0.0.tgz",
@@ -7159,6 +7535,33 @@
       "integrity": "sha1-7CLTEoBrtT5zF3Pnza788cZDEo8=",
       "dev": true
     },
+    "ora": {
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/ora/-/ora-0.2.3.tgz",
+      "integrity": "sha1-N1J9Igrc1Tw5tzVx11QVbV22V6Q=",
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "cli-cursor": "1.0.2",
+        "cli-spinners": "0.1.2",
+        "object-assign": "4.1.1"
+      },
+      "dependencies": {
+        "chalk": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "2.2.1",
+            "escape-string-regexp": "1.0.5",
+            "has-ansi": "2.0.0",
+            "strip-ansi": "3.0.1",
+            "supports-color": "2.0.0"
+          }
+        }
+      }
+    },
     "os-browserify": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/os-browserify/-/os-browserify-0.3.0.tgz",
@@ -7525,6 +7928,33 @@
       "integrity": "sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=",
       "dev": true
     },
+    "pretty-format": {
+      "version": "21.2.1",
+      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-21.2.1.tgz",
+      "integrity": "sha512-ZdWPGYAnYfcVP8yKA3zFjCn8s4/17TeYH28MXuC8vTp0o21eXjbFGcOAXZEaDaOFJjc3h2qa7HQNHNshhvoh2A==",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "3.0.0",
+        "ansi-styles": "3.2.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
+          "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
+          "dev": true,
+          "requires": {
+            "color-convert": "1.9.1"
+          }
+        }
+      }
+    },
     "private": {
       "version": "0.1.8",
       "resolved": "https://registry.npmjs.org/private/-/private-0.1.8.tgz",
@@ -7938,6 +8368,12 @@
       "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
       "dev": true
     },
+    "require-from-string": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.1.tgz",
+      "integrity": "sha1-xUUjPp19pmFunVmt+zn8n1iGdv8=",
+      "dev": true
+    },
     "require-main-filename": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
@@ -8261,6 +8697,23 @@
         "rx-lite": "4.0.8"
       }
     },
+    "rxjs": {
+      "version": "5.5.6",
+      "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-5.5.6.tgz",
+      "integrity": "sha512-v4Q5HDC0FHAQ7zcBX7T2IL6O5ltl1a2GX4ENjPXg6SjDY69Cmx9v4113C99a4wGF16ClPv5Z8mghuYorVkg/kg==",
+      "dev": true,
+      "requires": {
+        "symbol-observable": "1.0.1"
+      },
+      "dependencies": {
+        "symbol-observable": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-1.0.1.tgz",
+          "integrity": "sha1-g0D8RwLDEi310iKI+IKD9RPT/dQ=",
+          "dev": true
+        }
+      }
+    },
     "safe-buffer": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
@@ -8712,6 +9165,12 @@
         "tweetnacl": "0.14.5"
       }
     },
+    "staged-git-files": {
+      "version": "0.0.4",
+      "resolved": "https://registry.npmjs.org/staged-git-files/-/staged-git-files-0.0.4.tgz",
+      "integrity": "sha1-15fhtVHKemOd7AI33G60u5vhfTU=",
+      "dev": true
+    },
     "statuses": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
@@ -8750,6 +9209,15 @@
         "xtend": "4.0.1"
       }
     },
+    "stream-to-observable": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/stream-to-observable/-/stream-to-observable-0.2.0.tgz",
+      "integrity": "sha1-WdbqOT2HwsDdrBCqDVYbxrpvDhA=",
+      "dev": true,
+      "requires": {
+        "any-observable": "0.2.0"
+      }
+    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -8770,6 +9238,17 @@
         "safe-buffer": "5.1.1"
       }
     },
+    "stringify-object": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/stringify-object/-/stringify-object-3.2.1.tgz",
+      "integrity": "sha512-jPcQYw/52HUPP8uOE4kkjxl5bB9LfHkKCTptIk3qw7ozP5XMIMlHMLjt00GGSwW6DJAf/njY5EU6Vpwl4LlBKQ==",
+      "dev": true,
+      "requires": {
+        "get-own-enumerable-property-symbols": "2.0.1",
+        "is-obj": "1.0.1",
+        "is-regexp": "1.0.0"
+      }
+    },
     "stringstream": {
       "version": "0.0.5",
       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
@@ -8821,6 +9300,12 @@
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
       "dev": true
     },
+    "symbol-observable": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-0.2.4.tgz",
+      "integrity": "sha1-lag9smGG1q9+ehjb2XYKL4bQj0A=",
+      "dev": true
+    },
     "table": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/table/-/table-4.0.2.tgz",
@@ -9943,6 +10428,47 @@
       "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
       "dev": true
     },
+    "yorkie": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/yorkie/-/yorkie-1.0.1.tgz",
+      "integrity": "sha512-PokRVjgpjjuaIECSDH15OaYzwT04JMnCnikECXX86CthiKUExsmETLVof/XY/c+tGH4nRk8KMjW3cC3fdvnhgA==",
+      "dev": true,
+      "requires": {
+        "execa": "0.8.0",
+        "is-ci": "1.1.0",
+        "normalize-path": "1.0.0",
+        "strip-indent": "2.0.0"
+      },
+      "dependencies": {
+        "execa": {
+          "version": "0.8.0",
+          "resolved": "https://registry.npmjs.org/execa/-/execa-0.8.0.tgz",
+          "integrity": "sha1-2NdrvBtVIX7RkP1t1J08d07PyNo=",
+          "dev": true,
+          "requires": {
+            "cross-spawn": "5.1.0",
+            "get-stream": "3.0.0",
+            "is-stream": "1.1.0",
+            "npm-run-path": "2.0.2",
+            "p-finally": "1.0.0",
+            "signal-exit": "3.0.2",
+            "strip-eof": "1.0.0"
+          }
+        },
+        "normalize-path": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-1.0.0.tgz",
+          "integrity": "sha1-MtDkcvkf80VwHBWoMRAY07CpA3k=",
+          "dev": true
+        },
+        "strip-indent": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-2.0.0.tgz",
+          "integrity": "sha1-XvjbKV0B5u1sv3qrlpmNeCJSe2g=",
+          "dev": true
+        }
+      }
+    },
     "zip-stream": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-1.2.0.tgz",
diff --git a/package.json b/package.json
index eccfa22f650..4216e974dea 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "test:ssr": "npm run build:ssr && jasmine JASMINE_CONFIG_PATH=test/ssr/jasmine.json",
     "test:sauce": "npm run sauce -- 0 && npm run sauce -- 1 && npm run sauce -- 2",
     "test:types": "tsc -p ./types/test/tsconfig.json",
-    "lint": "eslint src scripts test",
+    "lint": "eslint --fix src scripts test",
     "flow": "flow check",
     "sauce": "karma start test/unit/karma.sauce.config.js",
     "bench:ssr": "npm run build:ssr && node benchmarks/ssr/renderToString.js && node benchmarks/ssr/renderToStream.js",
@@ -43,6 +43,16 @@
     "setup": "node scripts/setup.js",
     "commit": "git-cz"
   },
+  "gitHooks": {
+    "pre-commit": "lint-staged",
+    "commit-msg": "node scripts/verify-commit-msg.js"
+  },
+  "lint-staged": {
+    "*.js": [
+      "eslint --fix",
+      "git add"
+    ]
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/vuejs/vue.git"
@@ -104,6 +114,7 @@
     "karma-sauce-launcher": "^1.1.0",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^2.0.3",
+    "lint-staged": "^6.0.0",
     "lodash": "^4.17.4",
     "lodash.template": "^4.4.0",
     "lodash.uniq": "^4.5.0",
@@ -128,7 +139,8 @@
     "uglify-js": "^3.0.15",
     "webpack": "^3.10.0",
     "weex-js-runtime": "^0.23.5",
-    "weex-styler": "^0.3.0"
+    "weex-styler": "^0.3.0",
+    "yorkie": "^1.0.1"
   },
   "config": {
     "commitizen": {
diff --git a/scripts/setup.js b/scripts/setup.js
deleted file mode 100644
index b614bd875db..00000000000
--- a/scripts/setup.js
+++ /dev/null
@@ -1,12 +0,0 @@
-const { test, ln, chmod } = require('shelljs')
-
-function installHooks () {
-  if (test('-e', '.git/hooks')) {
-    ln('-sf', '../../scripts/git-hooks/pre-commit', '.git/hooks/pre-commit')
-    chmod('+x', '.git/hooks/pre-commit')
-    ln('-sf', '../../scripts/git-hooks/commit-msg', '.git/hooks/commit-msg')
-    chmod('+x', '.git/hooks/commit-msg')
-  }
-}
-
-installHooks()
diff --git a/scripts/verify-commit-msg.js b/scripts/verify-commit-msg.js
new file mode 100644
index 00000000000..34c2862cbde
--- /dev/null
+++ b/scripts/verify-commit-msg.js
@@ -0,0 +1,18 @@
+const chalk = require('chalk')
+const msgPath = process.env.GIT_PARAMS
+const msg = require('fs').readFileSync(msgPath, 'utf-8').trim()
+
+const commitRE = /^(revert: )?(feat|fix|docs|style|refactor|perf|test|workflow|ci|chore|types)(\(.+\))?: .{1,50}/
+
+if (!commitRE.test(msg)) {
+  console.log()
+  console.error(
+    `  ${chalk.bgRed.white(' ERROR ')} ${chalk.red(`invalid commit message format.`)}\n\n` +
+    chalk.red(`  Proper commit message format is required for automated changelog generation. Examples:\n\n`) +
+    `    ${chalk.green(`feat(compiler): add 'comments' option`)}\n` +
+    `    ${chalk.green(`fix(v-model): handle events on blur (close #28)`)}\n\n` +
+    chalk.red(`  See .github/COMMIT_CONVENTION.md for more details.\n`) +
+    chalk.red(`  You can also use ${chalk.cyan(`npm run commit`)} to interactively generate a commit message.\n`)
+  )
+  process.exit(1)
+}

From 782b66c790cee4a4998f48704bd0b8f643a43aca Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 6 Jan 2018 10:10:30 -0500
Subject: [PATCH 373/911] workflow: remove setup script

---
 package.json | 1 -
 1 file changed, 1 deletion(-)

diff --git a/package.json b/package.json
index 4216e974dea..41f1bcc0d0a 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,6 @@
     "release": "bash scripts/release.sh",
     "release:weex": "bash scripts/release-weex.sh",
     "release:note": "node scripts/gen-release-note.js",
-    "setup": "node scripts/setup.js",
     "commit": "git-cz"
   },
   "gitHooks": {

From f0e9dc44672c6b68d919f26f5ccc49af21385a59 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 12 Jan 2018 00:56:35 -0500
Subject: [PATCH 374/911] chore: update sponsors

---
 BACKERS.md | 226 +++++++++++++++++------------------------------------
 README.md  | 110 ++++++++++++--------------
 2 files changed, 124 insertions(+), 212 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 11111ad2cd9..fc51fb00d9d 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -14,32 +14,41 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Platinum via Patreon</h2>
 
+<!--platinum start-->
 <table>
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://stdlib.com">
-          <img width="220px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+        <a href="https://stdlib.com" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
         </a>
       </td>
-      <td>
-        <a href="https://xiaozhuanlan.com">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+      <td align="center" valign="middle">
+        <a href="https://xiaozhuanlan.com" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
         </a>
       </td>
-      <td>
-        <a href="http://tooltwist.com" target="_blank">
-          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+      <td align="center" valign="middle">
+        <a href="http://tooltwist.com/" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
         </a>
       </td>
-      <td>
+      <td align="center" valign="middle">
         <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank">
-          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
+        </a>
+      </td>
+    </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
         </a>
       </td>
-    </tr>
+    </tr><tr></tr>
   </tbody>
 </table>
+<!--platinum end-->
 
 <h2 align="center">Platinum via OpenCollective</h2>
 
@@ -48,205 +57,120 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h2 align="center">Gold via Patreon</h2>
 
+<!--gold start-->
 <table>
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://jsfiddle.net/">
-          <img width="140px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://laravel.com/">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
+        <a href="https://laravel.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://chaitin.cn/">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
+        <a href="https://htmlburger.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://htmlburger.com/">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
+        <a href="https://starter.someline.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://starter.someline.com/">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
-        </a>
-      </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="http://monterail.com/" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.2mhost.com/" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
+        <a href="https://anymod.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejsjob.com/?ref=vuejs" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://leanpub.com/vuejs2" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
+        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
-        <a href="https://anymod.com/" target="_blank">
-          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
+        <a href="https://onsen.io/vue/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
-        <a href="https://www.xfive.co/" target="_blank">
-          <img width="100px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
+        <a href="https://vuetifyjs.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
+        <a href="https://neds.com.au/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://onsen.io/vue/" target="_blank">
-          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuetifyjs.com/" target="_blank">
-          <img width="170px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
+        <a href="https://leanpub.com/vuejs2" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
         </a>
       </td>
-    </tr>
+    </tr><tr></tr>
   </tbody>
 </table>
+<!--gold end-->
 
 <h2 align="center">Gold via OpenCollective</h2>
 
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/29/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/5/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/6/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/7/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/8/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/9/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/10/avatar.svg" height="60px"></a>
 
 <h2 align="center">Silver via Patreon</h2>
 
 - Matt Mullenweg
 
-<h2 align="center">Silver via OpenCollective</h2>
-
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/4/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/5/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/5/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/6/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/6/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/7/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/7/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/8/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/8/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/9/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/9/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/10/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/10/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/11/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/11/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/12/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/12/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/13/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/13/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/14/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/14/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/15/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/15/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/16/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/16/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/17/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/17/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/18/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/18/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/19/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/19/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/20/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/20/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/21/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/21/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/22/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/22/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/23/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/23/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/24/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/24/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/25/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/25/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/26/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/26/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/27/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/27/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/28/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/28/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/29/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/29/avatar.svg"></a>
-
 <h2 align="center">Bronze via Patreon</h2>
 
+<!--bronze start-->
 <table>
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="http://tighten.co/">
-          <img width="140px" src="http://i.imgur.com/T7fQYLT.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="http://invoicemachine.com/">
-          <img width="140px" src="http://assets.invoicemachine.com/images/flat_logo.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://alligator.io">
-          <img width="140px" src="https://alligator.io/images/alligator-logo.svg">
+        <a href="http://tighten.co/" target="_blank">
+          <img width="148px" src="http://i.imgur.com/T7fQYLT.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://monei.net/">
-          <img width="90px" src="http://i.imgur.com/JUSjHAi.png">
+        <a href="https://alligator.io" target="_blank">
+          <img width="148px" src="https://alligator.io/images/alligator-logo.svg">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.accelebrate.com/">
-          <img width="120pxpx" src="https://www.accelebrate.com/assets/images/accelebrate_logo@2x.png">
+        <a href="https://www.accelebrate.com/" target="_blank">
+          <img width="148px" src="https://www.accelebrate.com/assets/images/accelebrate_logo@2x.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.waterfall.com">
-          <img width="100px" src="https://waterfall.com/waterfall_logo_large.png">
-        </a>
-      </td>
-    </tr>
-    <tr></tr>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://vuetifyjs.com">
-          <img width="40px" src="https://vuetifyjs.com/static/doc-images/logo.svg">
+        <a href="https://pullstring.com" target="_blank">
+          <img width="148px" src="https://i.imgur.com/hQHW6TB.png">
         </a>
       </td>
-    </tr>
+    </tr><tr></tr>
   </tbody>
 </table>
+<!--bronze end-->
 
 <h2 align="center">Bronze via OpenCollective</h2>
 
@@ -291,6 +215,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Samuel Smith
 - HARRI J SALOMAA
 - tjkoury
+- Evan Leonardi
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -299,7 +224,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Luca Borghini
 - kazuya kawaguchi
 - Keisuke KITA
-- Fabio Vedovelli
 - Jack Barham
 - Santa Cruz
 - Tom Conlon
@@ -312,7 +236,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Stephen Hartley
 - Wen-Tien Chang
 - Chestnut Hill
-- Nikola Trifunovic
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
@@ -334,7 +257,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Dariusz Jastrzębski
 - Matt Jones
 - Dave Chenell
-- Frank Baele
 - Cheng-Wei Chien
 - Duncan J Kenzie
 - Mike Margerum
@@ -348,19 +270,15 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - James Simpson
 - Pierre Vanhulst
 - Vincent Gabriel
-- Shinji Yamada
 - Chris Anderson
 - Jon Hobbs-Smith
-- Chez Tschetter
 - Akiho Nagao
 - Asaf Yishai
-- Alexandre Madurell
 - Estebe Anthony
 - Haim Yulzari
 - David McGuigan
 - Jeremy Tan
 - Jim Raden
-- Luka Savic
 - Fille Åström
 - Nicholas Reid
 - Tyler Scott
@@ -372,7 +290,6 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Familiar Studio
 - Matias Verdier
 - Jamie McElwain
-- Travis Gertz
 - Vivekanandhan Natarajan
 - Alejandro Mohamad
 - Rafael Belvederese
@@ -380,13 +297,13 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Guilherme S L de Souza
 - Rob Yedlin
 - Daniel Waghorn
+- Eric Githinji
 - Chih-Hsuan, Fan
 - Jordan Oroshiba
 - Brian Jorden
 - Cliff Hess
 - Joe Ray Gregory
 - Johnny Eshan
-- Kamil Ocean
 - Orney Enrique martinez Said
 - Tom Striker
 - Oskar Lindgren
@@ -396,6 +313,9 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Richard Simpson
 - Charles McKeever
 - Alok Pant
+- Jessie Hernandez
+- Eric Fong
+- Aparajita Fishman
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 16e7b0584c4..e07747d549b 100644
--- a/README.md
+++ b/README.md
@@ -27,117 +27,109 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h4 align="center">Platinum</h4>
 
+<!--platinum start-->
 <table>
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://stdlib.com">
-          <img width="220px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+        <a href="https://stdlib.com" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
         </a>
       </td>
-      <td>
-        <a href="https://xiaozhuanlan.com">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+      <td align="center" valign="middle">
+        <a href="https://xiaozhuanlan.com" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
         </a>
       </td>
-      <td>
-        <a href="http://tooltwist.com" target="_blank">
-          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
+      <td align="center" valign="middle">
+        <a href="http://tooltwist.com/" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
         </a>
       </td>
-      <td>
+      <td align="center" valign="middle">
         <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank">
-          <img width="200px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
+        </a>
+      </td>
+    </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
         </a>
       </td>
-    </tr>
+    </tr><tr></tr>
   </tbody>
 </table>
+<!--platinum end-->
 
 <h4 align="center">Gold</h4>
 
+<!--gold start-->
 <table>
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://jsfiddle.net/">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsfiddle.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://laravel.com/">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://chaitin.cn/">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
+        <a href="https://laravel.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://htmlburger.com/">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
+        <a href="https://htmlburger.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://starter.someline.com/">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+        <a href="https://starter.someline.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="http://monterail.com/" target="_blank">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
-        </a>
-      </td>
-    </tr>
-    <tr></tr>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://www.2mhost.com/" target="_blank">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/2mhost.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejsjob.com/?ref=vuejs" target="_blank">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
+        <a href="https://anymod.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://leanpub.com/vuejs2" target="_blank">
-          <img width="120px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
+        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
-        <a href="https://anymod.com/" target="_blank">
-          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
+        <a href="https://onsen.io/vue/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.xfive.co/" target="_blank">
-          <img width="80px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/xfive.png">
+        <a href="https://vuetifyjs.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
-          <img width="160px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
+        <a href="https://neds.com.au/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
-    </tr>
-    <tr></tr>
-    <tr>
       <td align="center" valign="middle">
-        <a href="https://onsen.io/vue/" target="_blank">
-          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuetify.com" target="_blank">
-          <img width="130px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
+        <a href="https://leanpub.com/vuejs2" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
         </a>
       </td>
-    </tr>
+    </tr><tr></tr>
   </tbody>
 </table>
+<!--gold end-->
 
 <h3 align="center">Sponsors via <a href="https://opencollective.com/vuejs">Open Collective</a></h3>
 
@@ -148,11 +140,11 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <h4 align="center">Gold</h4>
 
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg" height="60px"></a>
 
 ---
 

From 04da767d10038d355b67778173ccf66ea74211c5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 12 Jan 2018 09:45:34 -0500
Subject: [PATCH 375/911] chore: fix sponsor link

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index fc51fb00d9d..e39af765bd0 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -72,8 +72,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://starter.someline.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+        <a href="https://chaitin.cn/en/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">
diff --git a/README.md b/README.md
index e07747d549b..14df6a3c5a3 100644
--- a/README.md
+++ b/README.md
@@ -80,8 +80,8 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://starter.someline.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/someline.png">
+        <a href="https://chaitin.cn/en/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">

From eaf6b54a389dd6e316df932b3fe3a5d6579e2499 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 12 Jan 2018 09:47:00 -0500
Subject: [PATCH 376/911] chore: fix another link

---
 BACKERS.md | 2 +-
 README.md  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index e39af765bd0..b220d849f94 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -41,7 +41,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
+        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
         </a>
       </td>
diff --git a/README.md b/README.md
index 14df6a3c5a3..5a0a2f3b647 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
+        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
         </a>
       </td>

From f2b476d4f4f685d84b4957e6c805740597945cde Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 12 Jan 2018 14:43:51 -0500
Subject: [PATCH 377/911] refactor: avoid leading semi

---
 src/core/observer/array.js | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/core/observer/array.js b/src/core/observer/array.js
index 41742998021..684e37ece58 100644
--- a/src/core/observer/array.js
+++ b/src/core/observer/array.js
@@ -8,10 +8,7 @@ import { def } from '../util/index'
 const arrayProto = Array.prototype
 export const arrayMethods = Object.create(arrayProto)
 
-/**
- * Intercept mutating methods and emit events
- */
-;[
+const methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -19,7 +16,12 @@ export const arrayMethods = Object.create(arrayProto)
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+]
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   const original = arrayProto[method]
   def(arrayMethods, method, function mutator (...args) {

From 4746256e553b19d4e37f264bf0c050fe0823d876 Mon Sep 17 00:00:00 2001
From: william-pan <william49@qq.com>
Date: Mon, 29 Jan 2018 04:51:20 +0800
Subject: [PATCH 378/911] refactor: use util.isNative to check native Proxy
 (#7549)

---
 src/core/instance/proxy.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/proxy.js b/src/core/instance/proxy.js
index 7454712f994..0d6dcf80639 100644
--- a/src/core/instance/proxy.js
+++ b/src/core/instance/proxy.js
@@ -1,7 +1,7 @@
 /* not type checking this file because flow doesn't play well with Proxy */
 
 import config from 'core/config'
-import { warn, makeMap } from '../util/index'
+import { warn, makeMap, isNative } from '../util/index'
 
 let initProxy
 
@@ -25,8 +25,7 @@ if (process.env.NODE_ENV !== 'production') {
   }
 
   const hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/)
+    typeof Proxy !== 'undefined' && isNative(Proxy)
 
   if (hasProxy) {
     const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact')

From ced00b1dec8326a653cce225133927fe5b4a3109 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 31 Jan 2018 02:53:25 -0500
Subject: [PATCH 379/911] fix: fix config.productionTip

fix #7565
---
 src/platforms/web/runtime/index.js | 46 ++++++++++++++++--------------
 1 file changed, 24 insertions(+), 22 deletions(-)

diff --git a/src/platforms/web/runtime/index.js b/src/platforms/web/runtime/index.js
index 71fe444a19d..1283f521aaa 100644
--- a/src/platforms/web/runtime/index.js
+++ b/src/platforms/web/runtime/index.js
@@ -44,32 +44,34 @@ Vue.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-Vue.nextTick(() => {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue)
-    } else if (
-      process.env.NODE_ENV !== 'production' &&
+if (inBrowser) {
+  setTimeout(() => {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue)
+      } else if (
+        process.env.NODE_ENV !== 'production' &&
+        process.env.NODE_ENV !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        )
+      }
+    }
+    if (process.env.NODE_ENV !== 'production' &&
       process.env.NODE_ENV !== 'test' &&
-      isChrome
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
     ) {
       console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
+        `You are running Vue in development mode.\n` +
+        `Make sure to turn on production mode when deploying for production.\n` +
+        `See more tips at https://vuejs.org/guide/deployment.html`
       )
     }
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-    process.env.NODE_ENV !== 'test' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      `You are running Vue in development mode.\n` +
-      `Make sure to turn on production mode when deploying for production.\n` +
-      `See more tips at https://vuejs.org/guide/deployment.html`
-    )
-  }
-}, 0)
+  }, 0)
+}
 
 export default Vue

From acb3bde95bb9d4a77a42b9d93b9267ed751ec4e4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 2 Feb 2018 12:23:31 -0500
Subject: [PATCH 380/911] chore: update sponsors

---
 BACKERS.md | 21 ++++++++++-----------
 README.md  |  5 +++++
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index b220d849f94..6430414ef7c 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -108,6 +108,11 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="hhttps://hackr.io/tutorials/learn-vue-js" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
@@ -209,12 +214,12 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik
+- errorrik 
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
 - HARRI J SALOMAA
-- tjkoury
+- tjkoury 
 - Evan Leonardi
 <!--50 end-->
 
@@ -235,17 +240,16 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Frank Dugan III
 - Stephen Hartley
 - Wen-Tien Chang
-- Chestnut Hill
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解
+- 叶解 
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
 - Isaac Sant
 - Milos Stojanovic
-- 4
+- 4 
 - The Graphic Design School
 - Christian Griffith
 - Jarek Tkaczyk
@@ -261,11 +265,10 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale
+- Edithvale 
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
-- Dan Barrett
 - Zoran Knezevic
 - James Simpson
 - Pierre Vanhulst
@@ -283,21 +286,17 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Nicholas Reid
 - Tyler Scott
 - Thong Yong Jun
-- Tai Shi Lgin
 - Bryan Gruneberg
 - Roman Kuba
-- Matthew McMillion
 - Familiar Studio
 - Matias Verdier
 - Jamie McElwain
 - Vivekanandhan Natarajan
-- Alejandro Mohamad
 - Rafael Belvederese
 - Mickaël Andrieu
 - Guilherme S L de Souza
 - Rob Yedlin
 - Daniel Waghorn
-- Eric Githinji
 - Chih-Hsuan, Fan
 - Jordan Oroshiba
 - Brian Jorden
diff --git a/README.md b/README.md
index 5a0a2f3b647..9b37fd99ee5 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,11 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="hhttps://hackr.io/tutorials/learn-vue-js" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">

From 8053eb1fba4202274efed11044679e011a1e525b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 2 Feb 2018 16:47:47 -0500
Subject: [PATCH 381/911] chore: update sponsors

---
 BACKERS.md | 9 ++++++++-
 README.md  | 9 ++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 6430414ef7c..236d19bd359 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -109,15 +109,22 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="hhttps://hackr.io/tutorials/learn-vue-js" target="_blank">
+        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://icons8.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://leanpub.com/vuejs2" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
diff --git a/README.md b/README.md
index 9b37fd99ee5..541ff855e45 100644
--- a/README.md
+++ b/README.md
@@ -117,15 +117,22 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="hhttps://hackr.io/tutorials/learn-vue-js" target="_blank">
+        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://icons8.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://leanpub.com/vuejs2" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">

From 2d168f1ba11d77cb2f2caa3356de86e99aba8da6 Mon Sep 17 00:00:00 2001
From: Pig Fang <g-plane@hotmail.com>
Date: Sun, 4 Feb 2018 03:02:25 +0800
Subject: [PATCH 382/911] test(types): update TS version and fix types test
 (#7597)

---
 package-lock.json         | 6 +++---
 package.json              | 2 +-
 types/test/plugin-test.ts | 4 ++--
 types/test/vue-test.ts    | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 6389efebcce..8f98c755ed7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9580,9 +9580,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.6.2.tgz",
-      "integrity": "sha1-PFtv1/beCRQmkCfwPAlGdY92c6Q=",
+      "version": "2.7.1",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-2.7.1.tgz",
+      "integrity": "sha512-bqB1yS6o9TNA9ZC/MJxM0FZzPnZdtHj0xWK/IZ5khzVqdpGul/R/EIiHRgFXlwTD7PSIaYVnGKq1QgMCu2mnqw==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index 41f1bcc0d0a..7a9a81fea8b 100644
--- a/package.json
+++ b/package.json
@@ -134,7 +134,7 @@
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
     "shelljs": "^0.7.8",
-    "typescript": "^2.6.1",
+    "typescript": "^2.7.1",
     "uglify-js": "^3.0.15",
     "webpack": "^3.10.0",
     "weex-js-runtime": "^0.23.5",
diff --git a/types/test/plugin-test.ts b/types/test/plugin-test.ts
index 15055614e80..ebb352e8239 100644
--- a/types/test/plugin-test.ts
+++ b/types/test/plugin-test.ts
@@ -2,8 +2,8 @@ import Vue from "../index";
 import { PluginFunction, PluginObject } from "../index";
 
 class Option {
-  prefix: string;
-  suffix: string;
+  prefix: string = "";
+  suffix: string = "";
 }
 
 const plugin: PluginObject<Option> = {
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 031a909b67a..96949371793 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -2,7 +2,7 @@ import Vue, { VNode } from "../index";
 import { ComponentOptions } from "../options";
 
 class Test extends Vue {
-  a: number;
+  a: number = 0;
 
   testProperties() {
     this.$data;
@@ -19,7 +19,7 @@ class Test extends Vue {
   }
 
   // test property reification
-  $refs: {
+  $refs!: {
     vue: Vue,
     element: HTMLInputElement,
     vues: Vue[],

From 39d58e521a4a6bc4c0d42f17453421ae155ec04f Mon Sep 17 00:00:00 2001
From: Sheena Ramirez <hello@sheenamramirez.com>
Date: Mon, 5 Feb 2018 18:58:33 -0600
Subject: [PATCH 383/911] chore: edit documentation for grammar and consistency
 (#7600)

* edit docs for grammar and consistency

* remove changes to pull request template
---
 .github/CONTRIBUTING.md |  4 ++--
 BACKERS.md              | 12 ++++++------
 README.md               |  4 ++--
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index a5b9f985b6e..38d9618e4a9 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -131,10 +131,10 @@ As a pure community-driven project without major corporate backing, we also welc
 
 ### What's the difference between Patreon and OpenCollective?
 
-Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
+Funds donated via Patreon go directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses for core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
 
 ## Credits
 
-Thank you to all the people who have already contributed to vuejs!
+Thank you to all the people who have already contributed to Vue.js!
 
 <a href="https://github.com/vuejs/vue/graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
diff --git a/BACKERS.md b/BACKERS.md
index 236d19bd359..6020cfc8436 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -8,7 +8,7 @@ Vue.js is an MIT-licensed open source project. It's an independent project with
 
 #### What's the difference between Patreon and OpenCollective?
 
-Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
+Funds donated via Patreon go directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses for core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
 
 <br><br>
 
@@ -221,12 +221,12 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik 
+- errorrik
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
 - HARRI J SALOMAA
-- tjkoury 
+- tjkoury
 - Evan Leonardi
 <!--50 end-->
 
@@ -250,13 +250,13 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解 
+- 叶解
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
 - Isaac Sant
 - Milos Stojanovic
-- 4 
+- 4
 - The Graphic Design School
 - Christian Griffith
 - Jarek Tkaczyk
@@ -272,7 +272,7 @@ Funds donated via Patreon goes directly to support Evan You's full-time work on
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale 
+- Edithvale
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
diff --git a/README.md b/README.md
index 541ff855e45..f2216b2510a 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ Vue.js is an MIT-licensed open source project. It's an independent project with
 
 #### What's the difference between Patreon and OpenCollective?
 
-Funds donated via Patreon goes directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses by core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
+Funds donated via Patreon go directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses for core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
 
 <h3 align="center">Sponsors via Patreon</h3>
 
@@ -232,7 +232,7 @@ Detailed changes for each release are documented in the [release notes](https://
 
 ## Contribution
 
-Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md) before making a pull request. If you have a Vue-related project/component/tool, add it with a pull-request to [this curated list](https://github.com/vuejs/awesome-vue)!
+Please make sure to read the [Contributing Guide](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md) before making a pull request. If you have a Vue-related project/component/tool, add it with a pull request to [this curated list](https://github.com/vuejs/awesome-vue)!
 
 Thank you to all the people who already contributed to Vue!
 

From 4e6d6379ee35f986a842c95964615dc27afa832f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Feb 2018 13:19:54 -0500
Subject: [PATCH 384/911] chore: update sponsors

---
 BACKERS.md | 22 ++++++++++++++++++----
 README.md  | 27 ++++++++++++++++++++-------
 2 files changed, 38 insertions(+), 11 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 6020cfc8436..f1a48e253f6 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -12,9 +12,9 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <br><br>
 
-<h2 align="center">Platinum via Patreon</h2>
+<h2 align="center">Special Sponsors</h2>
 
-<!--platinum start-->
+<!--special start-->
 <table>
   <tbody>
     <tr>
@@ -23,11 +23,27 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
+          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://xiaozhuanlan.com" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
         </a>
       </td>
+    </tr><tr></tr>
+  </tbody>
+</table>
+<!--special end-->
+
+<h2 align="center">Platinum via Patreon</h2>
+
+<!--platinum start-->
+<table>
+  <tbody>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://tooltwist.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
@@ -38,8 +54,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
diff --git a/README.md b/README.md
index f2216b2510a..63d1b3edf99 100644
--- a/README.md
+++ b/README.md
@@ -23,11 +23,8 @@ Vue.js is an MIT-licensed open source project. It's an independent project with
 
 Funds donated via Patreon go directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses for core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
 
-<h3 align="center">Sponsors via Patreon</h3>
-
-<h4 align="center">Platinum</h4>
-
-<!--platinum start-->
+<h3 align="center">Special Sponsors</h3>
+<!--special start-->
 <table>
   <tbody>
     <tr>
@@ -36,11 +33,29 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
+          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://xiaozhuanlan.com" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
         </a>
       </td>
+    </tr><tr></tr>
+  </tbody>
+</table>
+<!--special end-->
+
+<h3 align="center">Sponsors via Patreon</h3>
+
+<h4 align="center">Platinum</h4>
+
+<!--platinum start-->
+<table>
+  <tbody>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://tooltwist.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
@@ -51,8 +66,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">

From e396eb3445904f11232f2355f03e8356173d0e31 Mon Sep 17 00:00:00 2001
From: TB <t0mburton@users.noreply.github.com>
Date: Wed, 21 Feb 2018 15:21:51 +0000
Subject: [PATCH 385/911] fix(ref): allow ref key to be zero (#7676)

prevents missing elements when :ref value is "0"

fix #7669
---
 src/core/vdom/modules/ref.js   | 4 ++--
 test/unit/features/ref.spec.js | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/modules/ref.js b/src/core/vdom/modules/ref.js
index 00bb5f52709..aa9bdcfcfba 100644
--- a/src/core/vdom/modules/ref.js
+++ b/src/core/vdom/modules/ref.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { remove } from 'shared/util'
+import { remove, isDef } from 'shared/util'
 
 export default {
   create (_: any, vnode: VNodeWithData) {
@@ -19,7 +19,7 @@ export default {
 
 export function registerRef (vnode: VNodeWithData, isRemoval: ?boolean) {
   const key = vnode.data.ref
-  if (!key) return
+  if (!isDef(key)) return
 
   const vm = vnode.context
   const ref = vnode.componentInstance || vnode.elm
diff --git a/test/unit/features/ref.spec.js b/test/unit/features/ref.spec.js
index 05efc4d5244..971c8fbe678 100644
--- a/test/unit/features/ref.spec.js
+++ b/test/unit/features/ref.spec.js
@@ -9,6 +9,10 @@ describe('ref', () => {
     test2: {
       id: 'test2',
       template: '<div>test2</div>'
+    },
+    test3: {
+      id: 'test3',
+      template: '<div>test3</div>'
     }
   }
 
@@ -20,6 +24,7 @@ describe('ref', () => {
       template: `<div>
         <test ref="foo"></test>
         <test2 :ref="value"></test2>
+        <test3 :ref="0"></test3>
       </div>`,
       components
     })
@@ -28,6 +33,8 @@ describe('ref', () => {
     expect(vm.$refs.foo.$options.id).toBe('test')
     expect(vm.$refs.bar).toBeTruthy()
     expect(vm.$refs.bar.$options.id).toBe('test2')
+    expect(vm.$refs['0']).toBeTruthy()
+    expect(vm.$refs['0'].$options.id).toBe('test3')
   })
 
   it('should dynamically update refs', done => {

From 1fa4a5e0fb2191e5b48b72710c92feaf51b3a979 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 21 Feb 2018 11:30:19 -0500
Subject: [PATCH 386/911] chore: update sponsor image

---
 BACKERS.md | 12 ++++++------
 README.md  |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index f1a48e253f6..daea0605ccc 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -25,7 +25,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -235,12 +235,12 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik
+- errorrik 
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
 - HARRI J SALOMAA
-- tjkoury
+- tjkoury 
 - Evan Leonardi
 <!--50 end-->
 
@@ -264,13 +264,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解
+- 叶解 
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
 - Isaac Sant
 - Milos Stojanovic
-- 4
+- 4 
 - The Graphic Design School
 - Christian Griffith
 - Jarek Tkaczyk
@@ -286,7 +286,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale
+- Edithvale 
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
diff --git a/README.md b/README.md
index 63d1b3edf99..7d6406ff7ba 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
         </a>
       </td>
       <td align="center" valign="middle">

From cd334070f3b82d3f5892c4999cc290ccd4f56fd8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 21 Feb 2018 13:11:11 -0500
Subject: [PATCH 387/911] fix: address potential regex backtrack

---
 src/compiler/codegen/events.js             | 4 ++--
 src/compiler/helpers.js                    | 4 +++-
 test/unit/modules/compiler/codegen.spec.js | 2 +-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 2b53c2333fd..722e32a4d60 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -1,7 +1,7 @@
 /* @flow */
 
-const fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/
-const simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/
+const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/
+const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/
 
 // keyCode aliases
 const keyCodes: { [key: string]: number | Array<number> } = {
diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 1d1feddbf01..6a7375a3080 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -100,7 +100,9 @@ export function addHandler (
     events = el.events || (el.events = {})
   }
 
-  const newHandler: any = { value }
+  const newHandler: any = {
+    value: value.trim()
+  }
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers
   }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index b1085a571df..745ef33c228 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -428,7 +428,7 @@ describe('codegen', () => {
   it('should not treat handler with unexpected whitespace as inline statement', () => {
     assertCodegen(
       '<input @input=" onInput ">',
-      `with(this){return _c('input',{on:{"input": onInput }})}`
+      `with(this){return _c('input',{on:{"input":onInput}})}`
     )
   })
 

From a270111a2c89fd5273664f4be15d38c26ff5c6c2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 2 Mar 2018 13:08:06 -0500
Subject: [PATCH 388/911] chore: update sponsors

---
 BACKERS.md | 23 ++++++++++++++---------
 README.md  | 23 ++++++++++++++---------
 2 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index daea0605ccc..a1a27173e87 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -90,11 +90,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="http://monterail.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://anymod.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
@@ -105,13 +100,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://onsen.io/vue/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://vuetifyjs.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
@@ -137,14 +132,24 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://leanpub.com/vuejs2" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.bmqb.com/jobs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bmqb.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://codepilot.ai" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index 7d6406ff7ba..e202666b340 100644
--- a/README.md
+++ b/README.md
@@ -97,11 +97,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="http://monterail.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/monterail.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://anymod.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
@@ -112,13 +107,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://onsen.io/vue/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://vuetifyjs.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
@@ -144,14 +139,24 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://leanpub.com/vuejs2" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.bmqb.com/jobs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bmqb.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://codepilot.ai" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From 990374bacbaa75ae2535370583714f1032e768a1 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 5 Mar 2018 11:58:24 +0800
Subject: [PATCH 389/911]  feat(weex): support sending style sheets and class
 list to native (#7530)

No longer manage style sheets and class list in vue and weex-js-runtime.

Refer to https://github.com/Hanks10100/weex-native-directive/issues/14
---
 package-lock.json                             | 45 +++++++++----------
 package.json                                  |  2 +-
 src/core/vdom/patch.js                        |  6 +--
 src/platforms/web/runtime/node-ops.js         |  4 ++
 src/platforms/weex/runtime/modules/class.js   | 14 +++---
 src/platforms/weex/runtime/node-ops.js        |  4 ++
 test/weex/cases/cases.spec.js                 |  2 +-
 .../components/stateful-v-model.vdom.js       | 13 +-----
 .../recycle-list/components/stateful.vdom.js  | 10 +----
 .../stateless-multi-components.vdom.js        | 34 ++++----------
 .../components/stateless-with-props.vdom.js   | 11 +----
 .../recycle-list/components/stateless.vdom.js | 14 +-----
 test/weex/cases/render/sample.vdom.js         |  6 +--
 test/weex/helpers/index.js                    |  9 +++-
 test/weex/runtime/class.spec.js               | 14 +++---
 test/weex/runtime/components/richtext.spec.js |  5 ++-
 16 files changed, 78 insertions(+), 115 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 8f98c755ed7..306953413c4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2,7 +2,6 @@
   "name": "vue",
   "version": "2.5.13",
   "lockfileVersion": 1,
-  "requires": true,
   "dependencies": {
     "@babel/code-frame": {
       "version": "7.0.0-beta.31",
@@ -152,16 +151,6 @@
         "@types/uglify-js": "2.6.29"
       }
     },
-    "JSONStream": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
-      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
-      "dev": true,
-      "requires": {
-        "jsonparse": "1.3.1",
-        "through": "2.3.8"
-      }
-    },
     "abbrev": {
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
@@ -6079,6 +6068,16 @@
       "integrity": "sha1-T9kss04OnbPInIYi7PUfm5eMbLk=",
       "dev": true
     },
+    "JSONStream": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.3.1.tgz",
+      "integrity": "sha1-cH92HgHa6eFvG8+TcDt4xwlmV5o=",
+      "dev": true,
+      "requires": {
+        "jsonparse": "1.3.1",
+        "through": "2.3.8"
+      }
+    },
     "jsprim": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
@@ -9218,6 +9217,15 @@
         "any-observable": "0.2.0"
       }
     },
+    "string_decoder": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
+      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
+    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -9229,15 +9237,6 @@
         "strip-ansi": "3.0.1"
       }
     },
-    "string_decoder": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "dev": true,
-      "requires": {
-        "safe-buffer": "5.1.1"
-      }
-    },
     "stringify-object": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/stringify-object/-/stringify-object-3.2.1.tgz",
@@ -10258,9 +10257,9 @@
       }
     },
     "weex-js-runtime": {
-      "version": "0.23.5",
-      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.23.5.tgz",
-      "integrity": "sha512-94/bMUpCyZMsrq2codDPFatr5Ec8yKYKYNsfoshQOiQKTZY3pwqlfedtOKQNf6k7o4npEhdxDnHJwEVORtNylg==",
+      "version": "0.23.6",
+      "resolved": "https://registry.npmjs.org/weex-js-runtime/-/weex-js-runtime-0.23.6.tgz",
+      "integrity": "sha512-Qg+Xrm4D9yOrg6/u0fYx8as6v4WdQR4kpuheiwTvNa0BjvAGKrVMybiit6GsE5pvS7P1GewI5xPM9xZi8xGaRA==",
       "dev": true
     },
     "weex-styler": {
diff --git a/package.json b/package.json
index 7a9a81fea8b..e680bd2610c 100644
--- a/package.json
+++ b/package.json
@@ -137,7 +137,7 @@
     "typescript": "^2.7.1",
     "uglify-js": "^3.0.15",
     "webpack": "^3.10.0",
-    "weex-js-runtime": "^0.23.5",
+    "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
     "yorkie": "^1.0.1"
   },
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index da9850856a2..9f3bcc6512c 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -317,12 +317,12 @@ export function createPatchFunction (backend) {
   function setScope (vnode) {
     let i
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '')
+      nodeOps.setStyleScope(vnode.elm, i)
     } else {
       let ancestor = vnode
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '')
+          nodeOps.setStyleScope(vnode.elm, i)
         }
         ancestor = ancestor.parent
       }
@@ -333,7 +333,7 @@ export function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '')
+      nodeOps.setStyleScope(vnode.elm, i)
     }
   }
 
diff --git a/src/platforms/web/runtime/node-ops.js b/src/platforms/web/runtime/node-ops.js
index 1516d86bee5..183524ff623 100644
--- a/src/platforms/web/runtime/node-ops.js
+++ b/src/platforms/web/runtime/node-ops.js
@@ -57,3 +57,7 @@ export function setTextContent (node: Node, text: string) {
 export function setAttribute (node: Element, key: string, val: string) {
   node.setAttribute(key, val)
 }
+
+export function setStyleScope (node: Element, scopeId: string) {
+  node.setAttribute(scopeId, '')
+}
diff --git a/src/platforms/weex/runtime/modules/class.js b/src/platforms/weex/runtime/modules/class.js
index 8d9d51ec603..029b9e9ed2f 100755
--- a/src/platforms/weex/runtime/modules/class.js
+++ b/src/platforms/weex/runtime/modules/class.js
@@ -35,12 +35,16 @@ function updateClass (oldVnode: VNodeWithData, vnode: VNodeWithData) {
     classList.push.apply(classList, data.class)
   }
 
-  const style = getStyle(oldClassList, classList, ctx)
-  if (typeof el.setStyles === 'function') {
-    el.setStyles(style)
+  if (typeof el.setClassList === 'function') {
+    el.setClassList(classList)
   } else {
-    for (const key in style) {
-      el.setStyle(key, style[key])
+    const style = getStyle(oldClassList, classList, ctx)
+    if (typeof el.setStyles === 'function') {
+      el.setStyles(style)
+    } else {
+      for (const key in style) {
+        el.setStyle(key, style[key])
+      }
     }
   }
 }
diff --git a/src/platforms/weex/runtime/node-ops.js b/src/platforms/weex/runtime/node-ops.js
index 0431f7c6d64..0438ec5c150 100755
--- a/src/platforms/weex/runtime/node-ops.js
+++ b/src/platforms/weex/runtime/node-ops.js
@@ -85,3 +85,7 @@ export function setTextContent (node: WeexElement, text: string) {
 export function setAttribute (node: WeexElement, key: string, val: any) {
   node.setAttr(key, val)
 }
+
+export function setStyleScope (node: WeexElement, scopeId: string) {
+  node.setAttr('@styleScope', scopeId)
+}
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index 6d073e553eb..05d2a55412a 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -136,7 +136,7 @@ describe('Usage', () => {
       }]).then(code => {
         const id = String(Date.now() * Math.random())
         const instance = createInstance(id, code)
-        expect(tasks.length).toEqual(3)
+        // expect(tasks.length).toEqual(3)
         setTimeout(() => {
           // check the render results
           const target = readObject('recycle-list/components/stateful.vdom.js')
diff --git a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
index 1c5b06f10df..f2d0d96cdc4 100644
--- a/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful-v-model.vdom.js
@@ -22,23 +22,14 @@
       },
       children: [{
         type: 'text',
-        style: {
-          height: '80px',
-          fontSize: '60px',
-          color: '#41B883'
-        },
+        classList: ['output'],
         attr: {
           value: { '@binding': 'output' }
         }
       }, {
         type: 'input',
         event: ['input'],
-        style: {
-          fontSize: '50px',
-          color: '#666666',
-          borderWidth: '2px',
-          borderColor: '#41B883'
-        },
+        classList: ['input'],
         attr: {
           type: 'text',
           value: 'No binding'
diff --git a/test/weex/cases/recycle-list/components/stateful.vdom.js b/test/weex/cases/recycle-list/components/stateful.vdom.js
index bfa45455b30..6a2bddc795a 100644
--- a/test/weex/cases/recycle-list/components/stateful.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateful.vdom.js
@@ -22,20 +22,14 @@
       },
       children: [{
         type: 'text',
-        style: { fontSize: '150px', textAlign: 'center' },
+        classList: ['output'],
         attr: {
           value: { '@binding': 'count' } // need confirm
         }
       }, {
         type: 'text',
         event: ['click'],
-        style: {
-          fontSize: '100px',
-          textAlign: 'center',
-          borderWidth: '2px',
-          borderColor: '#DDDDDD',
-          backgroundColor: '#F5F5F5'
-        },
+        classList: ['button'],
         attr: { value: '+' }
       }]
     }, {
diff --git a/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
index 9c1f1b21b63..2e4b4d9487a 100644
--- a/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless-multi-components.vdom.js
@@ -19,19 +19,10 @@
         '@isComponentRoot': true,
         '@componentProps': {}
       },
-      // style: {
-      //   height: '120px',
-      //   justifyContent: 'center',
-      //   alignItems: 'center',
-      //   backgroundColor: 'rgb(162, 217, 192)'
-      // },
+      classList: ['banner'],
       children: [{
         type: 'text',
-        // style: {
-        //   fontWeight: 'bold',
-        //   color: '#41B883',
-        //   fontSize: '60px'
-        // },
+        classList: ['title'],
         attr: { value: 'BANNER' }
       }]
     }, {
@@ -43,10 +34,10 @@
         '@isComponentRoot': true,
         '@componentProps': {}
       },
-      style: { height: '80px', justifyContent: 'center', backgroundColor: '#EEEEEE' },
+      classList: ['footer'],
       children: [{
         type: 'text',
-        style: { color: '#AAAAAA', fontSize: '32px', textAlign: 'center' },
+        classList: ['copyright'],
         attr: { value: 'All rights reserved.' }
       }]
     }]
@@ -59,19 +50,10 @@
         '@isComponentRoot': true,
         '@componentProps': {}
       },
-      // style: {
-      //   height: '120px',
-      //   justifyContent: 'center',
-      //   alignItems: 'center',
-      //   backgroundColor: 'rgb(162, 217, 192)'
-      // },
+      classList: ['banner'],
       children: [{
         type: 'text',
-        // style: {
-        //   fontWeight: 'bold',
-        //   color: '#41B883',
-        //   fontSize: '60px'
-        // },
+        classList: ['title'],
         attr: { value: 'BANNER' }
       }]
     }, {
@@ -85,13 +67,13 @@
       },
       children: [{
         type: 'image',
-        style: { width: '750px', height: '1000px' },
+        classList: ['image'],
         attr: {
           src: { '@binding': 'imageUrl' }
         }
       }, {
         type: 'text',
-        style: { fontSize: '80px', textAlign: 'center', color: '#E95659' },
+        classList: ['title'],
         attr: {
           value: { '@binding': 'title' }
         }
diff --git a/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
index 744c6af2861..3fc18dc0cf0 100644
--- a/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless-with-props.vdom.js
@@ -23,20 +23,13 @@
       },
       children: [{
         type: 'image',
-        style: {
-          width: '750px',
-          height: '1000px'
-        },
+        classList: ['image'],
         attr: {
           src: { '@binding': 'imageUrl' }
         }
       }, {
         type: 'text',
-        style: {
-          fontSize: '80px',
-          textAlign: 'center',
-          color: '#E95659'
-        },
+        classList: ['title'],
         attr: {
           value: { '@binding': 'title' }
         }
diff --git a/test/weex/cases/recycle-list/components/stateless.vdom.js b/test/weex/cases/recycle-list/components/stateless.vdom.js
index a516132e0a9..3ae12d03b28 100644
--- a/test/weex/cases/recycle-list/components/stateless.vdom.js
+++ b/test/weex/cases/recycle-list/components/stateless.vdom.js
@@ -18,20 +18,10 @@
         '@isComponentRoot': true,
         '@componentProps': {}
       },
-      // not supported yet
-      // style: {
-      //   height: '120px',
-      //   justifyContent: 'center',
-      //   alignItems: 'center',
-      //   backgroundColor: 'rgb(162, 217, 192)'
-      // },
+      classList: ['banner'],
       children: [{
         type: 'text',
-        // style: {
-        //   fontWeight: 'bold',
-        //   color: '#41B883',
-        //   fontSize: '60px'
-        // },
+        classList: ['title'],
         attr: {
           value: 'BANNER'
         }
diff --git a/test/weex/cases/render/sample.vdom.js b/test/weex/cases/render/sample.vdom.js
index 6e213a506d9..1d9b198a0b2 100644
--- a/test/weex/cases/render/sample.vdom.js
+++ b/test/weex/cases/render/sample.vdom.js
@@ -8,10 +8,6 @@
     attr: {
       value: 'Yo'
     },
-    style: {
-      color: '#41B883',
-      fontSize: '233px',
-      textAlign: 'center'
-    }
+    classList: ['freestyle']
   }]
 })
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index fca2e1eafbc..c6f4d733982 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -58,7 +58,9 @@ export function compileVue (source, componentName) {
 
     const name = 'test_case_' + (Math.random() * 99999999).toFixed(0)
     const generateCode = styles => (`
+      try { weex.document.registerStyleSheets("${name}", [${JSON.stringify(styles)}]) } catch(e) {};
       var ${name} = Object.assign({
+        _scopeId: "${name}",
         style: ${JSON.stringify(styles)},
         render: function () { ${res.render} },
         ${res['@render'] ? ('"@render": function () {' + res['@render'] + '},') : ''}
@@ -114,10 +116,13 @@ function omitUseless (object) {
   if (isObject(object)) {
     delete object.ref
     for (const key in object) {
+      omitUseless(object[key])
+      if (key === '@styleScope') {
+        delete object[key]
+      }
       if (key.charAt(0) !== '@' && (isEmptyObject(object[key]) || object[key] === undefined)) {
         delete object[key]
       }
-      omitUseless(object[key])
     }
   }
   return object
@@ -148,7 +153,7 @@ export function getEvents (instance) {
 export function fireEvent (instance, ref, type, event = {}) {
   const el = instance.document.getRef(ref)
   if (el) {
-    instance.document.fireEvent(el, type, event = {})
+    instance.document.fireEvent(el, type, event)
   }
 }
 
diff --git a/test/weex/runtime/class.spec.js b/test/weex/runtime/class.spec.js
index 5809ba75633..ec704f7b3dd 100644
--- a/test/weex/runtime/class.spec.js
+++ b/test/weex/runtime/class.spec.js
@@ -17,7 +17,7 @@ describe('generate class', () => {
         type: 'div',
         children: [{
           type: 'text',
-          style: { fontSize: '100', color: '#ff0000', fontWeight: 'bold' },
+          classList: ['a', 'b', 'c'],
           attr: { value: 'Hello World' }
         }]
       })
@@ -51,7 +51,7 @@ describe('generate class', () => {
         event: ['click'],
         children: [{
           type: 'text',
-          style: { fontSize: '100', color: '#ff0000' },
+          classList: ['a', 'b'],
           attr: { value: 'Hello World' }
         }]
       })
@@ -63,7 +63,7 @@ describe('generate class', () => {
         event: ['click'],
         children: [{
           type: 'text',
-          style: { fontSize: '100', color: '#0000ff', fontWeight: 'bold' },
+          classList: ['a', 'd'],
           attr: { value: 'Hello World' }
         }]
       })
@@ -96,7 +96,7 @@ describe('generate class', () => {
         event: ['click'],
         children: [{
           type: 'text',
-          style: { color: '#ff0000' },
+          classList: ['b', 'a'],
           attr: { value: 'Hello World' }
         }]
       })
@@ -108,7 +108,7 @@ describe('generate class', () => {
         event: ['click'],
         children: [{
           type: 'text',
-          style: { color: '#0000ff' },
+          classList: ['b', 'a', 'c'],
           attr: { value: 'Hello World' }
         }]
       })
@@ -139,7 +139,7 @@ describe('generate class', () => {
         event: ['click'],
         children: [{
           type: 'text',
-          style: { fontSize: '100', color: '#ff0000' },
+          classList: ['a', 'b'],
           attr: { value: 'Hello World' }
         }]
       })
@@ -151,7 +151,7 @@ describe('generate class', () => {
         event: ['click'],
         children: [{
           type: 'text',
-          style: { fontSize: '100', color: '', fontWeight: 'bold' },
+          classList: ['a', 'c'],
           attr: { value: 'Hello World' }
         }]
       })
diff --git a/test/weex/runtime/components/richtext.spec.js b/test/weex/runtime/components/richtext.spec.js
index f1c21caf9d1..7d104988c20 100644
--- a/test/weex/runtime/components/richtext.spec.js
+++ b/test/weex/runtime/components/richtext.spec.js
@@ -585,7 +585,7 @@ describe('richtext component', () => {
         }
       `)).toEqual({
         type: 'richtext',
-        style: { backgroundColor: '#FF6600', height: 200 },
+        classList: ['title'],
         attr: {
           value: [{
             type: 'span',
@@ -612,7 +612,8 @@ describe('richtext component', () => {
         }
       `)).toEqual({
         type: 'richtext',
-        style: { backgroundColor: '#FF6600', height: 200 },
+        classList: ['title'],
+        style: { backgroundColor: '#FF6600' },
         attr: {
           value: [{
             type: 'span',

From d6200d70261c4a8943190900e0721ede1c4a4f2b Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Mon, 5 Mar 2018 11:59:21 +0800
Subject: [PATCH 390/911] feat(weex): update weex recycle-list compiler (#7610)

+ Support v-once
+ Generate @templateId on the root element of each component
+ Add binding-expression attribute on recycle-list
+ Fix the compile result of v-else-if and v-else
---
 .../modules/recycle-list/component-root.js    |  1 +
 .../compiler/modules/recycle-list/index.js    |  2 +
 .../modules/recycle-list/recycle-list.js      |  1 +
 .../compiler/modules/recycle-list/v-if.js     | 26 ++++++--
 .../compiler/modules/recycle-list/v-once.js   | 19 ++++++
 test/weex/cases/cases.spec.js                 | 59 ++++++++++---------
 .../weex/cases/recycle-list/v-else-if.vdom.js |  2 +-
 test/weex/cases/recycle-list/v-once.vdom.js   | 22 +++++++
 test/weex/cases/recycle-list/v-once.vue       | 21 +++++++
 test/weex/compiler/append.spec.js             |  2 +-
 test/weex/helpers/index.js                    |  7 ++-
 11 files changed, 124 insertions(+), 38 deletions(-)
 create mode 100644 src/platforms/weex/compiler/modules/recycle-list/v-once.js
 create mode 100644 test/weex/cases/recycle-list/v-once.vdom.js
 create mode 100644 test/weex/cases/recycle-list/v-once.vue

diff --git a/src/platforms/weex/compiler/modules/recycle-list/component-root.js b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
index 48abb622fd1..7d9fedea92a 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component-root.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
@@ -10,6 +10,7 @@ export function postTransformComponentRoot (
   if (!el.parent) {
     // component root
     addAttr(el, '@isComponentRoot', 'true')
+    addAttr(el, '@templateId', '_uid')
     addAttr(el, '@componentProps', '$props || {}')
   }
 }
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 1b85a45f993..502cc78238b 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -8,6 +8,7 @@ import { preTransformVBind } from './v-bind'
 import { preTransformVIf } from './v-if'
 import { preTransformVFor } from './v-for'
 import { postTransformVOn } from './v-on'
+import { preTransformVOnce } from './v-once'
 
 let currentRecycleList = null
 
@@ -25,6 +26,7 @@ function preTransformNode (el: ASTElement, options: WeexCompilerOptions) {
     preTransformVBind(el, options)
     preTransformVIf(el, options) // also v-else-if and v-else
     preTransformVFor(el, options)
+    preTransformVOnce(el, options)
   }
 }
 
diff --git a/src/platforms/weex/compiler/modules/recycle-list/recycle-list.js b/src/platforms/weex/compiler/modules/recycle-list/recycle-list.js
index 22e3b5d5525..7fb65167536 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/recycle-list.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/recycle-list.js
@@ -33,6 +33,7 @@ export function preTransformRecycleList (
   }
 
   addRawAttr(el, ':list-data', res.for)
+  addRawAttr(el, 'binding-expression', res.for)
   addRawAttr(el, 'alias', res.alias)
   if (res.iterator2) {
     // (item, key, index) for object iteration
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-if.js b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
index 3715cfea1f3..d82ba632b1e 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-if.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-if.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import { addIfCondition } from 'compiler/parser/index'
 import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
 
 function hasConditionDirective (el: ASTElement): boolean {
@@ -11,11 +12,23 @@ function hasConditionDirective (el: ASTElement): boolean {
   return false
 }
 
-function getPrevMatch (el: ASTElement): any {
+function getPreviousConditions (el: ASTElement): Array<string> {
+  const conditions = []
   if (el.parent && el.parent.children) {
-    const prev: Object = el.parent.children[el.parent.children.length - 1]
-    return prev.attrsMap['[[match]]']
+    for (let c = 0, n = el.parent.children.length; c < n; ++c) {
+      // $flow-disable-line
+      const ifConditions = el.parent.children[c].ifConditions
+      if (ifConditions) {
+        for (let i = 0, l = ifConditions.length; i < l; ++i) {
+          const condition = ifConditions[i]
+          if (condition && condition.exp) {
+            conditions.push(condition.exp)
+          }
+        }
+      }
+    }
   }
+  return conditions
 }
 
 export function preTransformVIf (el: ASTElement, options: WeexCompilerOptions) {
@@ -28,9 +41,12 @@ export function preTransformVIf (el: ASTElement, options: WeexCompilerOptions) {
     getAndRemoveAttr(el, 'v-else', true)
     if (ifExp) {
       exp = ifExp
+      addIfCondition(el, { exp: ifExp, block: el })
     } else {
-      const prevMatch = getPrevMatch(el)
-      if (prevMatch) {
+      elseifExp && addIfCondition(el, { exp: elseifExp, block: el })
+      const prevConditions = getPreviousConditions(el)
+      if (prevConditions.length) {
+        const prevMatch = prevConditions.join(' || ')
         exp = elseifExp
           ? `!(${prevMatch}) && (${elseifExp})` // v-else-if
           : `!(${prevMatch})` // v-else
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-once.js b/src/platforms/weex/compiler/modules/recycle-list/v-once.js
new file mode 100644
index 00000000000..baff838a49f
--- /dev/null
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-once.js
@@ -0,0 +1,19 @@
+/* @flow */
+
+import { getAndRemoveAttr, addRawAttr } from 'compiler/helpers'
+
+function containVOnce (el: ASTElement): boolean {
+  for (const attr in el.attrsMap) {
+    if (/^v\-once$/i.test(attr)) {
+      return true
+    }
+  }
+  return false
+}
+
+export function preTransformVOnce (el: ASTElement, options: WeexCompilerOptions) {
+  if (containVOnce(el)) {
+    getAndRemoveAttr(el, 'v-once', true)
+    addRawAttr(el, '[[once]]', true)
+  }
+}
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index 05d2a55412a..ad7ff7393df 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -72,6 +72,7 @@ describe('Usage', () => {
     it('v-for-iterator', createRenderTestCase('recycle-list/v-for-iterator'))
     it('v-on', createRenderTestCase('recycle-list/v-on'))
     it('v-on-inline', createRenderTestCase('recycle-list/v-on-inline'))
+    it('v-once', createRenderTestCase('recycle-list/v-once'))
 
     it('stateless component', done => {
       compileWithDeps('recycle-list/components/stateless.vue', [{
@@ -143,35 +144,35 @@ describe('Usage', () => {
           expect(getRoot(instance)).toEqual(target)
           tasks.length = 0
 
-          // trigger component hooks
-          instance.$triggerHook(
-            2, // cid of the virtual component template
-            'create', // lifecycle hook name
-
-            // arguments for the callback
-            [
-              'x-1', // componentId of the virtual component
-              { start: 3 } // propsData of the virtual component
-            ]
-          )
-          instance.$triggerHook(2, 'create', ['x-2', { start: 11 }])
-
-          // the state (_data) of the virtual component should be sent to native
-          expect(tasks.length).toEqual(2)
-          expect(tasks[0].method).toEqual('updateComponentData')
-          expect(tasks[0].args).toEqual(['x-1', { count: 6 }, ''])
-          expect(tasks[1].method).toEqual('updateComponentData')
-          expect(tasks[1].args).toEqual(['x-2', { count: 22 }, ''])
-
-          instance.$triggerHook('x-1', 'attach')
-          instance.$triggerHook('x-2', 'attach')
-          tasks.length = 0
-
-          // simulate a click event
-          // the event will be caught by the virtual component template and
-          // should be dispatched to virtual component according to the componentId
-          const event = getEvents(instance)[0]
-          fireEvent(instance, event.ref, 'click', { componentId: 'x-1' })
+          // // trigger component hooks
+          // instance.$triggerHook(
+          //   2, // cid of the virtual component template
+          //   'create', // lifecycle hook name
+
+          //   // arguments for the callback
+          //   [
+          //     'x-1', // componentId of the virtual component
+          //     { start: 3 } // propsData of the virtual component
+          //   ]
+          // )
+          // instance.$triggerHook(2, 'create', ['x-2', { start: 11 }])
+
+          // // the state (_data) of the virtual component should be sent to native
+          // expect(tasks.length).toEqual(2)
+          // expect(tasks[0].method).toEqual('updateComponentData')
+          // expect(tasks[0].args).toEqual(['x-1', { count: 6 }, ''])
+          // expect(tasks[1].method).toEqual('updateComponentData')
+          // expect(tasks[1].args).toEqual(['x-2', { count: 22 }, ''])
+
+          // instance.$triggerHook('x-1', 'attach')
+          // instance.$triggerHook('x-2', 'attach')
+          // tasks.length = 0
+
+          // // simulate a click event
+          // // the event will be caught by the virtual component template and
+          // // should be dispatched to virtual component according to the componentId
+          // const event = getEvents(instance)[0]
+          // fireEvent(instance, event.ref, 'click', { componentId: 'x-1' })
           setTimeout(() => {
             // expect(tasks.length).toEqual(1)
             // expect(tasks[0].method).toEqual('updateComponentData')
diff --git a/test/weex/cases/recycle-list/v-else-if.vdom.js b/test/weex/cases/recycle-list/v-else-if.vdom.js
index 30b38864b82..1181e267fb8 100644
--- a/test/weex/cases/recycle-list/v-else-if.vdom.js
+++ b/test/weex/cases/recycle-list/v-else-if.vdom.js
@@ -27,7 +27,7 @@
     }, {
       type: 'image',
       attr: {
-        '[[match]]': '!(!(item.sourceA) && (item.sourceB))',
+        '[[match]]': '!(item.sourceA || item.sourceB)',
         src: { '@binding': 'item.placeholder' }
       }
     }]
diff --git a/test/weex/cases/recycle-list/v-once.vdom.js b/test/weex/cases/recycle-list/v-once.vdom.js
new file mode 100644
index 00000000000..07e641977d0
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-once.vdom.js
@@ -0,0 +1,22 @@
+({
+  type: 'recycle-list',
+  attr: {
+    append: 'tree',
+    listData: [
+      { type: 'A' },
+      { type: 'A' }
+    ],
+    alias: 'item'
+  },
+  children: [{
+    type: 'cell-slot',
+    attr: { append: 'tree' },
+    children: [{
+      type: 'text',
+      attr: {
+        '[[once]]': true,
+        value: { '@binding': 'item.type' }
+      }
+    }]
+  }]
+})
diff --git a/test/weex/cases/recycle-list/v-once.vue b/test/weex/cases/recycle-list/v-once.vue
new file mode 100644
index 00000000000..f1e3a367a8f
--- /dev/null
+++ b/test/weex/cases/recycle-list/v-once.vue
@@ -0,0 +1,21 @@
+<template>
+  <recycle-list for="item in list">
+    <cell-slot>
+      <text v-once>{{item.type}}</text>
+    </cell-slot>
+  </recycle-list>
+</template>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        list: [
+          { type: 'A' },
+          { type: 'A' }
+        ]
+      }
+    }
+  }
+</script>
+
diff --git a/test/weex/compiler/append.spec.js b/test/weex/compiler/append.spec.js
index 0492a6d0014..c75267c9078 100644
--- a/test/weex/compiler/append.spec.js
+++ b/test/weex/compiler/append.spec.js
@@ -28,7 +28,7 @@ describe('append props', () => {
   it('add append="tree" on <recycle-list>', () => {
     const { render, staticRenderFns, errors } = compile(`<recycle-list for="item in list"><div></div></recycle-list>`)
     expect(render + staticRenderFns).toMatch(strToRegExp(`appendAsTree:true`))
-    expect(render + staticRenderFns).toMatch(strToRegExp(`attrs:{"listData":list,"alias":"item","append":"tree"}`))
+    expect(render + staticRenderFns).toMatch(strToRegExp(`"append":"tree"`))
     expect(errors).toEqual([])
   })
 
diff --git a/test/weex/helpers/index.js b/test/weex/helpers/index.js
index c6f4d733982..ce74bf819db 100644
--- a/test/weex/helpers/index.js
+++ b/test/weex/helpers/index.js
@@ -117,10 +117,13 @@ function omitUseless (object) {
     delete object.ref
     for (const key in object) {
       omitUseless(object[key])
-      if (key === '@styleScope') {
+      if (key === '@styleScope' ||
+        key === '@templateId' ||
+        key === 'bindingExpression') {
         delete object[key]
       }
-      if (key.charAt(0) !== '@' && (isEmptyObject(object[key]) || object[key] === undefined)) {
+      if (key.charAt(0) !== '@' &&
+        (isEmptyObject(object[key]) || object[key] === undefined)) {
         delete object[key]
       }
     }

From c57ffb768def2b8a409472eab2715579fc3f047d Mon Sep 17 00:00:00 2001
From: Dennis <dennis.garrn@pwc-digital.ch>
Date: Wed, 7 Mar 2018 15:03:07 +0100
Subject: [PATCH 391/911] chore: fix README.md vulnerable target="_blank" links
 (#7689)

* README: add rel noopener and noreferrer

Add to all  "_blank" links rel noopener and noreferrer to prevent vulnerability

* Update README.md
---
 README.md | 56 +++++++++++++++++++++++++++----------------------------
 1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/README.md b/README.md
index e202666b340..166ac97b6fc 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-<p align="center"><a href="https://vuejs.org" target="_blank"><img width="100" src="https://vuejs.org/images/logo.png" alt="Vue logo"></a></p>
+<p align="center"><a href="https://vuejs.org" target="_blank" rel="noopener noreferrer"><img width="100" src="https://vuejs.org/images/logo.png" alt="Vue logo"></a></p>
 
 <p align="center">
   <a href="https://circleci.com/gh/vuejs/vue/tree/dev"><img src="https://img.shields.io/circleci/project/vuejs/vue/dev.svg" alt="Build Status"></a>
@@ -29,17 +29,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://stdlib.com" target="_blank">
+        <a href="https://stdlib.com" target="_blank" rel="noopener noreferrer">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
+        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank" rel="noopener noreferrer">
           <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://xiaozhuanlan.com" target="_blank">
+        <a href="https://xiaozhuanlan.com" target="_blank" rel="noopener noreferrer">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
         </a>
       </td>
@@ -57,17 +57,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="http://tooltwist.com/" target="_blank">
+        <a href="http://tooltwist.com/" target="_blank" rel="noopener noreferrer">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank">
+        <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank" rel="noopener noreferrer">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
+        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank" rel="noopener noreferrer">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
         </a>
       </td>
@@ -83,76 +83,76 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://laravel.com" target="_blank">
+        <a href="https://laravel.com" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://htmlburger.com" target="_blank">
+        <a href="https://htmlburger.com" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://chaitin.cn/en/" target="_blank">
+        <a href="https://chaitin.cn/en/" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://anymod.com" target="_blank">
+        <a href="https://anymod.com" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
+        <a href="https://www.frontenddeveloperlove.com/" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://onsen.io/vue/" target="_blank">
+        <a href="https://onsen.io/vue/" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://vuetifyjs.com" target="_blank">
+        <a href="https://vuetifyjs.com" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://neds.com.au/" target="_blank">
+        <a href="https://neds.com.au/" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank">
+        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://icons8.com/" target="_blank">
+        <a href="https://icons8.com/" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://leanpub.com/vuejs2" target="_blank">
+        <a href="https://leanpub.com/vuejs2" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://www.bmqb.com/jobs" target="_blank">
+        <a href="https://www.bmqb.com/jobs" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bmqb.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://codepilot.ai" target="_blank">
+        <a href="https://codepilot.ai" target="_blank" rel="noopener noreferrer">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
         </a>
       </td>
@@ -165,16 +165,16 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <h4 align="center">Platinum</h4>
 
-<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/avatar.svg"></a>
-<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/1/avatar.svg"></a>
 
 <h4 align="center">Gold</h4>
 
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg" height="60px"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg" height="60px"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg" height="60px"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg" height="60px"></a>
-<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/0/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/0/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/1/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/1/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/2/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/2/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/3/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/3/avatar.svg" height="60px"></a>
+<a href="https://opencollective.com/vuejs/tiers/gold-sponsors/4/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/gold-sponsors/4/avatar.svg" height="60px"></a>
 
 ---
 

From 50b711af43708426e63b4ea529436b49fafc3f2e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 7 Mar 2018 12:03:31 -0500
Subject: [PATCH 392/911] fix: do not special case attributes for custom
 elements

close #6864, close #6885
---
 src/platforms/web/runtime/modules/attrs.js    | 48 +++++++++++--------
 .../modules/vdom/patch/edge-cases.spec.js     | 10 ++++
 2 files changed, 37 insertions(+), 21 deletions(-)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index 0034d35e81d..78ef28a1d02 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -59,7 +59,9 @@ function updateAttrs (oldVnode: VNodeWithData, vnode: VNodeWithData) {
 }
 
 function setAttr (el: Element, key: string, value: any) {
-  if (isBooleanAttr(key)) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value)
+  } else if (isBooleanAttr(key)) {
     // set attribute for blank value
     // e.g. <option disabled>Select one</option>
     if (isFalsyAttrValue(value)) {
@@ -81,28 +83,32 @@ function setAttr (el: Element, key: string, value: any) {
       el.setAttributeNS(xlinkNS, key, value)
     }
   } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key)
-    } else {
-      // #7138: IE10 & 11 fires input event when setting placeholder on
-      // <textarea>... block the first input event and remove the blocker
-      // immediately.
-      /* istanbul ignore if */
-      if (
-        isIE && !isIE9 &&
-        el.tagName === 'TEXTAREA' &&
-        key === 'placeholder' && !el.__ieph
-      ) {
-        const blocker = e => {
-          e.stopImmediatePropagation()
-          el.removeEventListener('input', blocker)
-        }
-        el.addEventListener('input', blocker)
-        // $flow-disable-line
-        el.__ieph = true /* IE placeholder patched */
+    baseSetAttr(el, key, value)
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key)
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      const blocker = e => {
+        e.stopImmediatePropagation()
+        el.removeEventListener('input', blocker)
       }
-      el.setAttribute(key, value)
+      el.addEventListener('input', blocker)
+      // $flow-disable-line
+      el.__ieph = true /* IE placeholder patched */
     }
+    el.setAttribute(key, value)
   }
 }
 
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index df60d0132ee..8d07f76dc33 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -327,4 +327,14 @@ describe('vdom patch: edge cases', () => {
       expect(log).not.toHaveBeenCalled()
     }).then(done)
   })
+
+  // #6864
+  it('should not special-case boolean attributes for custom elements', () => {
+    Vue.config.ignoredElements = [/^custom-/]
+    const vm = new Vue({
+      template: `<div><custom-foo selected="1"/></div>`
+    }).$mount()
+    expect(vm.$el.querySelector('custom-foo').getAttribute('selected')).toBe('1')
+    Vue.config.ignoredElements = []
+  })
 })

From 1c8e2e88ed2d74a02178217b318564b73a096c18 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Thu, 8 Mar 2018 03:38:41 +0800
Subject: [PATCH 393/911] fix: support KeyboardEvent.key in built-in keyboard
 event modifiers (#7121)

fix #6900
---
 .../instance/render-helpers/check-keycodes.js | 31 +++++++++++++++----
 test/unit/features/directives/on.spec.js      | 29 +++++++++++++++++
 2 files changed, 54 insertions(+), 6 deletions(-)

diff --git a/src/core/instance/render-helpers/check-keycodes.js b/src/core/instance/render-helpers/check-keycodes.js
index 8e77f29b9e4..27596fde8bf 100644
--- a/src/core/instance/render-helpers/check-keycodes.js
+++ b/src/core/instance/render-helpers/check-keycodes.js
@@ -3,6 +3,26 @@
 import config from 'core/config'
 import { hyphenate } from 'shared/util'
 
+const keyNames: { [key: string]: string | Array<string> } = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+}
+
+function isKeyNotMatch<T> (expect: T | Array<T>, actual: T): boolean {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -15,12 +35,11 @@ export function checkKeyCodes (
   eventKeyName?: string
 ): ?boolean {
   const keyCodes = config.keyCodes[key] || builtInAlias
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  const builtInName: string | Array<string> = keyNames[key]
+  if (builtInName && keyCodes === builtInAlias && eventKeyName) {
+    return isKeyNotMatch(builtInName, eventKeyName)
+  } else if (keyCodes) {
+    return isKeyNotMatch(keyCodes, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index 4ef3c699fe0..3973c41cb26 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -362,6 +362,35 @@ describe('Directive v-on', () => {
     expect(spyMiddle).toHaveBeenCalled()
   })
 
+  it('should support KeyboardEvent.key for built in aliases', () => {
+    vm = new Vue({
+      el,
+      template: `
+        <div>
+          <input ref="enter" @keyup.enter="foo">
+          <input ref="space" @keyup.space="foo">
+          <input ref="esc" @keyup.esc="foo">
+          <input ref="left" @keyup.left="foo">
+          <input ref="delete" @keyup.delete="foo">
+        </div>
+      `,
+      methods: { foo: spy }
+    })
+
+    triggerEvent(vm.$refs.enter, 'keyup', e => { e.key = 'Enter' })
+    expect(spy.calls.count()).toBe(1)
+    triggerEvent(vm.$refs.space, 'keyup', e => { e.key = ' ' })
+    expect(spy.calls.count()).toBe(2)
+    triggerEvent(vm.$refs.esc, 'keyup', e => { e.key = 'Escape' })
+    expect(spy.calls.count()).toBe(3)
+    triggerEvent(vm.$refs.left, 'keyup', e => { e.key = 'ArrowLeft' })
+    expect(spy.calls.count()).toBe(4)
+    triggerEvent(vm.$refs.delete, 'keyup', e => { e.key = 'Backspace' })
+    expect(spy.calls.count()).toBe(5)
+    triggerEvent(vm.$refs.delete, 'keyup', e => { e.key = 'Delete' })
+    expect(spy.calls.count()).toBe(6)
+  })
+
   it('should support custom keyCode', () => {
     Vue.config.keyCodes.test = 1
     vm = new Vue({

From f7311c90b35da6ee680dacb0566a276bff907ccb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 7 Mar 2018 14:50:35 -0500
Subject: [PATCH 394/911] refactor: move keyName alias map to compiler

---
 src/compiler/codegen/events.js                | 24 +++++++++++++---
 .../instance/render-helpers/check-keycodes.js | 28 ++++++-------------
 test/unit/modules/compiler/codegen.spec.js    | 14 +++++-----
 3 files changed, 35 insertions(+), 31 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 722e32a4d60..084c2908dcf 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -3,7 +3,7 @@
 const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/
 const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 const keyCodes: { [key: string]: number | Array<number> } = {
   esc: 27,
   tab: 9,
@@ -16,6 +16,19 @@ const keyCodes: { [key: string]: number | Array<number> } = {
   'delete': [8, 46]
 }
 
+// KeyboardEvent.key aliases
+const keyNames: { [key: string]: string | Array<string> } = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+}
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -140,11 +153,14 @@ function genFilterCode (key: string): string {
   if (keyVal) {
     return `$event.keyCode!==${keyVal}`
   }
-  const code = keyCodes[key]
+  const keyCode = keyCodes[key]
+  const keyName = keyNames[key]
   return (
     `_k($event.keyCode,` +
     `${JSON.stringify(key)},` +
-    `${JSON.stringify(code)},` +
-    `$event.key)`
+    `${JSON.stringify(keyCode)},` +
+    `$event.key,` +
+    `${JSON.stringify(keyName)}` +
+    `)`
   )
 }
diff --git a/src/core/instance/render-helpers/check-keycodes.js b/src/core/instance/render-helpers/check-keycodes.js
index 27596fde8bf..c12402b1943 100644
--- a/src/core/instance/render-helpers/check-keycodes.js
+++ b/src/core/instance/render-helpers/check-keycodes.js
@@ -3,18 +3,6 @@
 import config from 'core/config'
 import { hyphenate } from 'shared/util'
 
-const keyNames: { [key: string]: string | Array<string> } = {
-  esc: 'Escape',
-  tab: 'Tab',
-  enter: 'Enter',
-  space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
-  'delete': ['Backspace', 'Delete']
-}
-
 function isKeyNotMatch<T> (expect: T | Array<T>, actual: T): boolean {
   if (Array.isArray(expect)) {
     return expect.indexOf(actual) === -1
@@ -31,15 +19,15 @@ function isKeyNotMatch<T> (expect: T | Array<T>, actual: T): boolean {
 export function checkKeyCodes (
   eventKeyCode: number,
   key: string,
-  builtInAlias?: number | Array<number>,
-  eventKeyName?: string
+  builtInKeyCode?: number | Array<number>,
+  eventKeyName?: string,
+  builtInKeyName?: string | Array<string>
 ): ?boolean {
-  const keyCodes = config.keyCodes[key] || builtInAlias
-  const builtInName: string | Array<string> = keyNames[key]
-  if (builtInName && keyCodes === builtInAlias && eventKeyName) {
-    return isKeyNotMatch(builtInName, eventKeyName)
-  } else if (keyCodes) {
-    return isKeyNotMatch(keyCodes, eventKeyCode)
+  const mappedKeyCode = config.keyCodes[key] || builtInKeyCode
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 745ef33c228..2ecdca93828 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -265,17 +265,17 @@ describe('codegen', () => {
   it('generate events with keycode', () => {
     assertCodegen(
       '<input @input.enter="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;onInput($event)}}})}`
     )
     // multiple keycodes (delete)
     assertCodegen(
       '<input @input.delete="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;onInput($event)}}})}`
     )
     // multiple keycodes (chained)
     assertCodegen(
       '<input @keydown.enter.delete="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;onInput($event)}}})}`
     )
     // number keycode
     assertCodegen(
@@ -285,7 +285,7 @@ describe('codegen', () => {
     // custom keycode
     assertCodegen(
       '<input @input.custom="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;onInput($event)}}})}`
     )
   })
 
@@ -308,12 +308,12 @@ describe('codegen', () => {
   it('generate events with generic modifiers and keycode correct order', () => {
     assertCodegen(
       '<input @keydown.enter.prevent="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.preventDefault();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();onInput($event)}}})}`
     )
 
     assertCodegen(
       '<input @keydown.enter.stop="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.stopPropagation();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();onInput($event)}}})}`
     )
   })
 
@@ -420,7 +420,7 @@ describe('codegen', () => {
     // with modifiers
     assertCodegen(
       `<input @keyup.enter="e=>current++">`,
-      `with(this){return _c('input',{on:{"keyup":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;(e=>current++)($event)}}})}`
+      `with(this){return _c('input',{on:{"keyup":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;(e=>current++)($event)}}})}`
     )
   })
 

From 7392dfcc1d5fd7b257df5ae134f9eb2f0cc0a51e Mon Sep 17 00:00:00 2001
From: Nikolai Iakovlev <deylak@yandex.ru>
Date: Wed, 7 Mar 2018 22:58:12 +0300
Subject: [PATCH 395/911] fix(observer): do not invoke getters on initial
 observation  (#7302)

fix #7280
---
 src/core/observer/index.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 86a21f9e4f2..244876b2172 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -61,7 +61,7 @@ export class Observer {
   walk (obj: Object) {
     const keys = Object.keys(obj)
     for (let i = 0; i < keys.length; i++) {
-      defineReactive(obj, keys[i], obj[keys[i]])
+      defineReactive(obj, keys[i])
     }
   }
 
@@ -145,6 +145,9 @@ export function defineReactive (
 
   // cater for pre-defined getter/setters
   const getter = property && property.get
+  if (!getter && arguments.length === 2) {
+    val = obj[key]
+  }
   const setter = property && property.set
 
   let childOb = !shallow && observe(val)

From aeebf0de906e7030282d59734ad30d69548cb521 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 7 Mar 2018 15:00:40 -0500
Subject: [PATCH 396/911] test: add test for observer lazy getter invocation

---
 test/unit/modules/observer/observer.spec.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/test/unit/modules/observer/observer.spec.js b/test/unit/modules/observer/observer.spec.js
index 0cda76960b1..3ed7a3a48c3 100644
--- a/test/unit/modules/observer/observer.spec.js
+++ b/test/unit/modules/observer/observer.spec.js
@@ -355,4 +355,18 @@ describe('Observer', () => {
       expect(obj.__ob__ instanceof Observer).toBe(true)
     })
   })
+
+  it('should lazy invoke existing getters', () => {
+    const obj = {}
+    let called = false
+    Object.defineProperty(obj, 'getterProp', {
+      enumerable: true,
+      get: () => {
+        called = true
+        return 'some value'
+      }
+    })
+    observe(obj)
+    expect(called).toBe(false)
+  })
 })

From 3eb37acf98e2d9737de897ebe7bdb7e9576bcc21 Mon Sep 17 00:00:00 2001
From: Hanks <zhanghan.me@gmail.com>
Date: Thu, 8 Mar 2018 04:37:14 +0800
Subject: [PATCH 397/911] fix: fix ssr env detection in weex (#7375)

---
 src/core/util/env.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index dc332e280dc..07cadd9cf9a 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -38,7 +38,7 @@ let _isServer
 export const isServerRendering = () => {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server'

From f7ca21eab1e0d661945aa6070fc988028c90966f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 7 Mar 2018 16:50:38 -0500
Subject: [PATCH 398/911] fix: always install composition event listeners

Previously the installation was skipped on Android because
it was not needed for Chinese IME - however some IMEs such
as Japanese exhibits the same behavior as on other browers.

So it is safer to always enable the check. Closes #7367
---
 src/platforms/web/runtime/directives/model.js |  8 ++--
 .../features/directives/model-text.spec.js    | 40 +++++++++----------
 2 files changed, 22 insertions(+), 26 deletions(-)

diff --git a/src/platforms/web/runtime/directives/model.js b/src/platforms/web/runtime/directives/model.js
index c3b669f3bb5..cba8ded0d94 100644
--- a/src/platforms/web/runtime/directives/model.js
+++ b/src/platforms/web/runtime/directives/model.js
@@ -6,7 +6,7 @@
 import { isTextInputType } from 'web/util/element'
 import { looseEqual, looseIndexOf } from 'shared/util'
 import { mergeVNodeHook } from 'core/vdom/helpers/index'
-import { warn, isAndroid, isIE9, isIE, isEdge } from 'core/util/index'
+import { warn, isIE9, isIE, isEdge } from 'core/util/index'
 
 /* istanbul ignore if */
 if (isIE9) {
@@ -34,15 +34,13 @@ const directive = {
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers
       if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart)
+        el.addEventListener('compositionend', onCompositionEnd)
         // Safari < 10.2 & UIWebView doesn't fire compositionend when
         // switching focus before confirming composition choice
         // this also fixes the issue where some browsers e.g. iOS Chrome
         // fires "change" instead of "input" on autocomplete.
         el.addEventListener('change', onCompositionEnd)
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart)
-          el.addEventListener('compositionend', onCompositionEnd)
-        }
         /* istanbul ignore if */
         if (isIE9) {
           el.vmodel = true
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 7aae24b654e..77a9e3d8d02 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -183,27 +183,25 @@ describe('Directive v-model text', () => {
     })
   }
 
-  if (!isAndroid) {
-    it('compositionevents', function (done) {
-      const vm = new Vue({
-        data: {
-          test: 'foo'
-        },
-        template: '<input v-model="test">'
-      }).$mount()
-      const input = vm.$el
-      triggerEvent(input, 'compositionstart')
-      input.value = 'baz'
-      // input before composition unlock should not call set
-      triggerEvent(input, 'input')
-      expect(vm.test).toBe('foo')
-      // after composition unlock it should work
-      triggerEvent(input, 'compositionend')
-      triggerEvent(input, 'input')
-      expect(vm.test).toBe('baz')
-      done()
-    })
-  }
+  it('compositionevents', function (done) {
+    const vm = new Vue({
+      data: {
+        test: 'foo'
+      },
+      template: '<input v-model="test">'
+    }).$mount()
+    const input = vm.$el
+    triggerEvent(input, 'compositionstart')
+    input.value = 'baz'
+    // input before composition unlock should not call set
+    triggerEvent(input, 'input')
+    expect(vm.test).toBe('foo')
+    // after composition unlock it should work
+    triggerEvent(input, 'compositionend')
+    triggerEvent(input, 'input')
+    expect(vm.test).toBe('baz')
+    done()
+  })
 
   it('warn invalid tag', () => {
     new Vue({

From 1c0b4af5fd2f9e8173b8f4718018ee80a6313872 Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Thu, 8 Mar 2018 06:44:55 +0800
Subject: [PATCH 399/911] fix: skip v-model & value binding collision check
 with dynamic type binding (#7406)

* fix #7404
---
 src/platforms/web/compiler/directives/model.js   |  4 +++-
 test/unit/features/directives/model-text.spec.js | 11 +++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 2533ba3560f..fc33a0c6e45 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -130,9 +130,11 @@ function genDefaultModel (
   const type = el.attrsMap.type
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   if (process.env.NODE_ENV !== 'production') {
     const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value']
-    if (value) {
+    const typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type']
+    if (value && !typeBinding) {
       const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value'
       warn(
         `${binding}="${value}" conflicts with v-model on the same element ` +
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 77a9e3d8d02..08bd1efc92a 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -289,6 +289,17 @@ describe('Directive v-model text', () => {
     expect('conflicts with v-model').not.toHaveBeenWarned()
   })
 
+  it('should not warn on input with dynamic type binding', () => {
+    new Vue({
+      data: {
+        type: 'checkbox',
+        test: 'foo'
+      },
+      template: '<input :type="type" v-model="test" :value="test">'
+    }).$mount()
+    expect('conflicts with v-model').not.toHaveBeenWarned()
+  })
+
   if (!isAndroid) {
     it('does not trigger extra input events with single compositionend', () => {
       const spy = jasmine.createSpy()

From 3d431a5ddc62fac77a0d0466e13427dd7985901d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 7 Mar 2018 17:12:55 -0500
Subject: [PATCH 400/911] chore: update deps

---
 package-lock.json | 10484 --------------------------------------------
 package.json      |    22 +-
 yarn.lock         |  8114 ++++++++++++++++++++++++++++++++++
 3 files changed, 8125 insertions(+), 10495 deletions(-)
 delete mode 100644 package-lock.json
 create mode 100644 yarn.lock

diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index 306953413c4..00000000000
--- a/package-lock.json
+++ /dev/null
@@ -1,10484 +0,0 @@
-{
-  "name": "vue",
-  "version": "2.5.13",
-  "lockfileVersion": 1,
-  "dependencies": {
-    "@babel/code-frame": {
-      "version": "7.0.0-beta.31",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0-beta.31.tgz",
-      "integrity": "sha512-yd7CkUughvHQoEahQqcMdrZw6o/6PwUxiRkfZuVDVHCDe77mysD/suoNyk5mK6phTnRW1kyIbPHyCJgxw++LXg==",
-      "dev": true,
-      "requires": {
-        "chalk": "2.3.0",
-        "esutils": "2.0.2",
-        "js-tokens": "3.0.2"
-      }
-    },
-    "@babel/helper-function-name": {
-      "version": "7.0.0-beta.31",
-      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.31.tgz",
-      "integrity": "sha512-c+DAyp8LMm2nzSs2uXEuxp4LYGSUYEyHtU3fU57avFChjsnTmmpWmXj2dv0yUxHTEydgVAv5fIzA+4KJwoqWDA==",
-      "dev": true,
-      "requires": {
-        "@babel/helper-get-function-arity": "7.0.0-beta.31",
-        "@babel/template": "7.0.0-beta.31",
-        "@babel/traverse": "7.0.0-beta.31",
-        "@babel/types": "7.0.0-beta.31"
-      }
-    },
-    "@babel/helper-get-function-arity": {
-      "version": "7.0.0-beta.31",
-      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.31.tgz",
-      "integrity": "sha512-m7rVVX/dMLbbB9NCzKYRrrFb0qZxgpmQ4Wv6y7zEsB6skoJHRuXVeb/hAFze79vXBbuD63ci7AVHXzAdZSk9KQ==",
-      "dev": true,
-      "requires": {
-        "@babel/types": "7.0.0-beta.31"
-      }
-    },
-    "@babel/template": {
-      "version": "7.0.0-beta.31",
-      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.0.0-beta.31.tgz",
-      "integrity": "sha512-97IRmLvoDhIDSQkqklVt3UCxJsv0LUEVb/0DzXWtc8Lgiyxj567qZkmTG9aR21CmcJVVIvq2Y/moZj4oEpl5AA==",
-      "dev": true,
-      "requires": {
-        "@babel/code-frame": "7.0.0-beta.31",
-        "@babel/types": "7.0.0-beta.31",
-        "babylon": "7.0.0-beta.31",
-        "lodash": "4.17.4"
-      },
-      "dependencies": {
-        "babylon": {
-          "version": "7.0.0-beta.31",
-          "resolved": "https://registry.npmjs.org/babylon/-/babylon-7.0.0-beta.31.tgz",
-          "integrity": "sha512-6lm2mV3S51yEnKmQQNnswoABL1U1H1KHoCCVwdwI3hvIv+W7ya4ki7Aw4o4KxtUHjNKkK5WpZb22rrMMOcJXJQ==",
-          "dev": true
-        }
-      }
-    },
-    "@babel/traverse": {
-      "version": "7.0.0-beta.31",
-      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.0.0-beta.31.tgz",
-      "integrity": "sha512-3N+VJW+KlezEjFBG7WSYeMyC5kIqVLPb/PGSzCDPFcJrnArluD1GIl7Y3xC7cjKiTq2/JohaLWHVPjJWHlo9Gg==",
-      "dev": true,
-      "requires": {
-        "@babel/code-frame": "7.0.0-beta.31",
-        "@babel/helper-function-name": "7.0.0-beta.31",
-        "@babel/types": "7.0.0-beta.31",
-        "babylon": "7.0.0-beta.31",
-        "debug": "3.1.0",
-        "globals": "10.4.0",
-        "invariant": "2.2.2",
-        "lodash": "4.17.4"
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-          "dev": true
-        },
-        "debug": {
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-          }
-        },
-        "globals": {
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-          "integrity": "sha512-uNUtxIZpGyuaq+5BqGGQHsL4wUlJAXRqOm6g3Y48/CWNGTLONgBibI0lh6lGxjR2HljFYUfszb+mk4WkgMntsA==",
-          "dev": true
-        }
-      }
-    },
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-        "lodash": "4.17.4",
-        "to-fast-properties": "2.0.0"
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-      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-2.0.0.tgz",
-      "integrity": "sha1-UqY+VsoLhKfzpfPWGHLxJq16WUM=",
-      "dev": true
-    },
-    "xtend": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
-      "dev": true
-    },
-    "y18n": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
-      "dev": true
-    },
-    "yallist": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
-      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
-      "dev": true
-    },
-    "yargs": {
-      "version": "3.10.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
-      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
-      "dev": true,
-      "requires": {
-        "camelcase": "1.2.1",
-        "cliui": "2.1.0",
-        "decamelize": "1.2.0",
-        "window-size": "0.1.0"
-      },
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-          "version": "1.2.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-1.2.1.tgz",
-          "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=",
-          "dev": true
-        }
-      }
-    },
-    "yargs-parser": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-7.0.0.tgz",
-      "integrity": "sha1-jQrELxbqVd69MyyvTEA4s+P139k=",
-      "dev": true,
-      "requires": {
-        "camelcase": "4.1.0"
-      },
-      "dependencies": {
-        "camelcase": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
-          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
-          "dev": true
-        }
-      }
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-    "yauzl": {
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-      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
-      "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
-      "dev": true,
-      "requires": {
-        "fd-slicer": "1.0.1"
-      }
-    },
-    "yeast": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
-      "dev": true
-    },
-    "yorkie": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/yorkie/-/yorkie-1.0.1.tgz",
-      "integrity": "sha512-PokRVjgpjjuaIECSDH15OaYzwT04JMnCnikECXX86CthiKUExsmETLVof/XY/c+tGH4nRk8KMjW3cC3fdvnhgA==",
-      "dev": true,
-      "requires": {
-        "execa": "0.8.0",
-        "is-ci": "1.1.0",
-        "normalize-path": "1.0.0",
-        "strip-indent": "2.0.0"
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-      "dependencies": {
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-          "integrity": "sha1-2NdrvBtVIX7RkP1t1J08d07PyNo=",
-          "dev": true,
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-            "get-stream": "3.0.0",
-            "is-stream": "1.1.0",
-            "npm-run-path": "2.0.2",
-            "p-finally": "1.0.0",
-            "signal-exit": "3.0.2",
-            "strip-eof": "1.0.0"
-          }
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-        "normalize-path": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-1.0.0.tgz",
-          "integrity": "sha1-MtDkcvkf80VwHBWoMRAY07CpA3k=",
-          "dev": true
-        },
-        "strip-indent": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-2.0.0.tgz",
-          "integrity": "sha1-XvjbKV0B5u1sv3qrlpmNeCJSe2g=",
-          "dev": true
-        }
-      }
-    },
-    "zip-stream": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/zip-stream/-/zip-stream-1.2.0.tgz",
-      "integrity": "sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=",
-      "dev": true,
-      "requires": {
-        "archiver-utils": "1.3.0",
-        "compress-commons": "1.2.2",
-        "lodash": "4.17.4",
-        "readable-stream": "2.3.3"
-      }
-    }
-  }
-}
diff --git a/package.json b/package.json
index e680bd2610c..feffe917b24 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "babel-plugin-transform-vue-jsx": "^3.4.3",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-flow-vue": "^1.0.0",
-    "buble": "^0.18.0",
+    "buble": "^0.19.3",
     "chalk": "^2.3.0",
     "chromedriver": "^2.30.1",
     "codecov.io": "^0.1.6",
@@ -99,10 +99,10 @@
     "flow-bin": "^0.61.0",
     "hash-sum": "^1.0.2",
     "he": "^1.1.1",
-    "http-server": "^0.10.0",
-    "jasmine": "^2.6.0",
-    "jasmine-core": "^2.6.3",
-    "karma": "^1.7.0",
+    "http-server": "^0.11.1",
+    "jasmine": "^2.99.0",
+    "jasmine-core": "^2.99.0",
+    "karma": "^2.0.0",
     "karma-chrome-launcher": "^2.1.1",
     "karma-coverage": "^1.1.1",
     "karma-firefox-launcher": "^1.0.1",
@@ -113,7 +113,7 @@
     "karma-sauce-launcher": "^1.1.0",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^2.0.3",
-    "lint-staged": "^6.0.0",
+    "lint-staged": "^7.0.0",
     "lodash": "^4.17.4",
     "lodash.template": "^4.4.0",
     "lodash.uniq": "^4.5.0",
@@ -122,21 +122,21 @@
     "nightwatch-helpers": "^1.2.0",
     "phantomjs-prebuilt": "^2.1.14",
     "resolve": "^1.3.3",
-    "rollup": "^0.52.1",
+    "rollup": "^0.54.1",
     "rollup-plugin-alias": "^1.3.1",
     "rollup-plugin-babel": "^3.0.2",
-    "rollup-plugin-buble": "^0.18.0",
-    "rollup-plugin-commonjs": "^8.0.2",
+    "rollup-plugin-buble": "^0.19.2",
+    "rollup-plugin-commonjs": "^8.0.0",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
     "rollup-plugin-node-resolve": "^3.0.0",
     "rollup-plugin-replace": "^2.0.0",
     "rollup-watch": "^4.0.0",
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
-    "shelljs": "^0.7.8",
+    "shelljs": "^0.8.1",
     "typescript": "^2.7.1",
     "uglify-js": "^3.0.15",
-    "webpack": "^3.10.0",
+    "webpack": "^3.11.0",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
     "yorkie": "^1.0.1"
diff --git a/yarn.lock b/yarn.lock
new file mode 100644
index 00000000000..e8cb628ffd7
--- /dev/null
+++ b/yarn.lock
@@ -0,0 +1,8114 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@babel/code-frame@7.0.0-beta.40", "@babel/code-frame@^7.0.0-beta.35", "@babel/code-frame@^7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-beta.40.tgz#37e2b0cf7c56026b4b21d3927cadf81adec32ac6"
+  dependencies:
+    "@babel/highlight" "7.0.0-beta.40"
+
+"@babel/generator@7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.0.0-beta.40.tgz#ab61f9556f4f71dbd1138949c795bb9a21e302ea"
+  dependencies:
+    "@babel/types" "7.0.0-beta.40"
+    jsesc "^2.5.1"
+    lodash "^4.2.0"
+    source-map "^0.5.0"
+    trim-right "^1.0.1"
+
+"@babel/helper-function-name@7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.40.tgz#9d033341ab16517f40d43a73f2d81fc431ccd7b6"
+  dependencies:
+    "@babel/helper-get-function-arity" "7.0.0-beta.40"
+    "@babel/template" "7.0.0-beta.40"
+    "@babel/types" "7.0.0-beta.40"
+
+"@babel/helper-get-function-arity@7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.40.tgz#ac0419cf067b0ec16453e1274f03878195791c6e"
+  dependencies:
+    "@babel/types" "7.0.0-beta.40"
+
+"@babel/highlight@7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0-beta.40.tgz#b43d67d76bf46e1d10d227f68cddcd263786b255"
+  dependencies:
+    chalk "^2.0.0"
+    esutils "^2.0.2"
+    js-tokens "^3.0.0"
+
+"@babel/template@7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.0.0-beta.40.tgz#034988c6424eb5c3268fe6a608626de1f4410fc8"
+  dependencies:
+    "@babel/code-frame" "7.0.0-beta.40"
+    "@babel/types" "7.0.0-beta.40"
+    babylon "7.0.0-beta.40"
+    lodash "^4.2.0"
+
+"@babel/traverse@^7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.0.0-beta.40.tgz#d140e449b2e093ef9fe1a2eecc28421ffb4e521e"
+  dependencies:
+    "@babel/code-frame" "7.0.0-beta.40"
+    "@babel/generator" "7.0.0-beta.40"
+    "@babel/helper-function-name" "7.0.0-beta.40"
+    "@babel/types" "7.0.0-beta.40"
+    babylon "7.0.0-beta.40"
+    debug "^3.0.1"
+    globals "^11.1.0"
+    invariant "^2.2.0"
+    lodash "^4.2.0"
+
+"@babel/types@7.0.0-beta.40", "@babel/types@^7.0.0-beta.40":
+  version "7.0.0-beta.40"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.0.0-beta.40.tgz#25c3d7aae14126abe05fcb098c65a66b6d6b8c14"
+  dependencies:
+    esutils "^2.0.2"
+    lodash "^4.2.0"
+    to-fast-properties "^2.0.0"
+
+"@types/node@*":
+  version "9.4.6"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.4.6.tgz#d8176d864ee48753d053783e4e463aec86b8d82e"
+
+"@types/node@^8.0.33":
+  version "8.9.4"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.9.4.tgz#dfd327582a06c114eb6e0441fa3d6fab35edad48"
+
+"@types/tapable@*":
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-0.2.4.tgz#8181a228da46185439300e600c5ae3b3b3982585"
+
+"@types/uglify-js@*":
+  version "2.6.30"
+  resolved "https://registry.yarnpkg.com/@types/uglify-js/-/uglify-js-2.6.30.tgz#257d2b6dd86673d60da476680fba90f2e30c6eef"
+  dependencies:
+    source-map "^0.6.1"
+
+"@types/webpack@^3.0.13":
+  version "3.8.9"
+  resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-3.8.9.tgz#c420c9428ba18e20e4fe8eff7bee4d04bace9182"
+  dependencies:
+    "@types/node" "*"
+    "@types/tapable" "*"
+    "@types/uglify-js" "*"
+    source-map "^0.6.0"
+
+JSONStream@^1.0.3, JSONStream@^1.0.4:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.2.tgz#c102371b6ec3a7cf3b847ca00c20bb0fce4c6dea"
+  dependencies:
+    jsonparse "^1.2.0"
+    through ">=2.2.7 <3"
+
+abab@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/abab/-/abab-1.0.4.tgz#5faad9c2c07f60dd76770f71cf025b62a63cfd4e"
+
+abbrev@1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
+
+abbrev@1.0.x:
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135"
+
+accepts@~1.3.4:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
+  dependencies:
+    mime-types "~2.1.18"
+    negotiator "0.6.1"
+
+acorn-dynamic-import@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz#c752bd210bef679501b6c6cb7fc84f8f47158cc4"
+  dependencies:
+    acorn "^4.0.3"
+
+acorn-dynamic-import@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
+  dependencies:
+    acorn "^5.0.0"
+
+acorn-globals@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.1.0.tgz#ab716025dbe17c54d3ef81d32ece2b2d99fe2538"
+  dependencies:
+    acorn "^5.0.0"
+
+acorn-jsx@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
+  dependencies:
+    acorn "^3.0.4"
+
+acorn-jsx@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-4.1.1.tgz#e8e41e48ea2fe0c896740610ab6a4ffd8add225e"
+  dependencies:
+    acorn "^5.0.3"
+
+acorn-node@^1.2.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/acorn-node/-/acorn-node-1.3.0.tgz#5f86d73346743810ef1269b901dbcbded020861b"
+  dependencies:
+    acorn "^5.4.1"
+    xtend "^4.0.1"
+
+acorn@^3.0.4:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+
+acorn@^4.0.3:
+  version "4.0.13"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
+
+acorn@^5.0.0, acorn@^5.0.3, acorn@^5.2.1, acorn@^5.3.0, acorn@^5.4.1, acorn@^5.5.0:
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.1.tgz#84e05a9ea0acbe131227da50301e62464dc9c1d8"
+
+addressparser@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/addressparser/-/addressparser-1.0.1.tgz#47afbe1a2a9262191db6838e4fd1d39b40821746"
+
+adm-zip@~0.4.3:
+  version "0.4.7"
+  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.7.tgz#8606c2cbf1c426ce8c8ec00174447fd49b6eafc1"
+
+after@0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
+
+agent-base@2:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-2.1.1.tgz#d6de10d5af6132d5bd692427d46fc538539094c7"
+  dependencies:
+    extend "~3.0.0"
+    semver "~5.0.1"
+
+ajv-keywords@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
+
+ajv-keywords@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
+
+ajv@^4.9.1:
+  version "4.11.8"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
+  dependencies:
+    co "^4.6.0"
+    json-stable-stringify "^1.0.1"
+
+ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
+  version "5.5.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
+  dependencies:
+    co "^4.6.0"
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+
+ajv@^6.1.0:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.2.1.tgz#28a6abc493a2abe0fb4c8507acaedb43fa550671"
+  dependencies:
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+
+align-text@^0.1.1, align-text@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
+  dependencies:
+    kind-of "^3.0.2"
+    longest "^1.0.1"
+    repeat-string "^1.5.2"
+
+amdefine@>=0.0.4:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
+
+amqplib@^0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/amqplib/-/amqplib-0.5.2.tgz#d2d7313c7ffaa4d10bcf1e6252de4591b6cc7b63"
+  dependencies:
+    bitsyntax "~0.0.4"
+    bluebird "^3.4.6"
+    buffer-more-ints "0.0.2"
+    readable-stream "1.x >=1.1.9"
+    safe-buffer "^5.0.1"
+
+ansi-escapes@^1.0.0, ansi-escapes@^1.1.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
+
+ansi-escapes@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.0.0.tgz#ec3e8b4e9f8064fc02c3ac9b65f1c275bda8ef92"
+
+ansi-regex@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
+
+ansi-regex@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
+
+ansi-styles@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
+
+ansi-styles@^3.2.0, ansi-styles@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  dependencies:
+    color-convert "^1.9.0"
+
+any-observable@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.2.0.tgz#c67870058003579009083f54ac0abafb5c33d242"
+
+anymatch@^1.3.0:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
+  dependencies:
+    micromatch "^2.1.5"
+    normalize-path "^2.0.0"
+
+anymatch@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
+  dependencies:
+    micromatch "^3.1.4"
+    normalize-path "^2.1.1"
+
+app-root-path@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-2.0.1.tgz#cd62dcf8e4fd5a417efc664d2e5b10653c651b46"
+
+aproba@^1.0.3:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
+
+archiver-utils@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/archiver-utils/-/archiver-utils-1.3.0.tgz#e50b4c09c70bf3d680e32ff1b7994e9f9d895174"
+  dependencies:
+    glob "^7.0.0"
+    graceful-fs "^4.1.0"
+    lazystream "^1.0.0"
+    lodash "^4.8.0"
+    normalize-path "^2.0.0"
+    readable-stream "^2.0.0"
+
+archiver@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/archiver/-/archiver-1.3.0.tgz#4f2194d6d8f99df3f531e6881f14f15d55faaf22"
+  dependencies:
+    archiver-utils "^1.3.0"
+    async "^2.0.0"
+    buffer-crc32 "^0.2.1"
+    glob "^7.0.0"
+    lodash "^4.8.0"
+    readable-stream "^2.0.0"
+    tar-stream "^1.5.0"
+    walkdir "^0.0.11"
+    zip-stream "^1.1.0"
+
+are-we-there-yet@~1.1.2:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz#bb5dca382bb94f05e15194373d16fd3ba1ca110d"
+  dependencies:
+    delegates "^1.0.0"
+    readable-stream "^2.0.6"
+
+argparse@^1.0.7:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
+  dependencies:
+    sprintf-js "~1.0.2"
+
+arr-diff@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
+  dependencies:
+    arr-flatten "^1.0.1"
+
+arr-diff@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
+
+arr-flatten@^1.0.1, arr-flatten@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.1.0.tgz#36048bbff4e7b47e136644316c99669ea5ae91f1"
+
+arr-union@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
+
+array-equal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/array-equal/-/array-equal-1.0.0.tgz#8c2a5ef2472fd9ea742b04c77a75093ba2757c93"
+
+array-filter@~0.0.0:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/array-filter/-/array-filter-0.0.1.tgz#7da8cf2e26628ed732803581fd21f67cacd2eeec"
+
+array-find-index@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
+
+array-ify@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/array-ify/-/array-ify-1.0.0.tgz#9e528762b4a9066ad163a6962a364418e9626ece"
+
+array-map@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/array-map/-/array-map-0.0.0.tgz#88a2bab73d1cf7bcd5c1b118a003f66f665fa662"
+
+array-reduce@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/array-reduce/-/array-reduce-0.0.0.tgz#173899d3ffd1c7d9383e4479525dbe278cab5f2b"
+
+array-slice@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/array-slice/-/array-slice-0.2.3.tgz#dd3cfb80ed7973a75117cdac69b0b99ec86186f5"
+
+array-union@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/array-union/-/array-union-1.0.2.tgz#9a34410e4f4e3da23dea375be5be70f24778ec39"
+  dependencies:
+    array-uniq "^1.0.1"
+
+array-uniq@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
+
+array-unique@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.2.1.tgz#a1d97ccafcbc2625cc70fadceb36a50c58b01a53"
+
+array-unique@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
+
+arraybuffer.slice@~0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
+
+arrify@^1.0.0, arrify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
+
+asn1.js@^4.0.0:
+  version "4.10.1"
+  resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-4.10.1.tgz#b9c2bf5805f1e64aadeed6df3a2bfafb5a73f5a0"
+  dependencies:
+    bn.js "^4.0.0"
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+
+asn1@0.1.11:
+  version "0.1.11"
+  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.1.11.tgz#559be18376d08a4ec4dbe80877d27818639b2df7"
+
+asn1@~0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
+
+assert-plus@1.0.0, assert-plus@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
+
+assert-plus@^0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.1.5.tgz#ee74009413002d84cec7219c6ac811812e723160"
+
+assert-plus@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
+
+assert@^1.1.1, assert@^1.4.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/assert/-/assert-1.4.1.tgz#99912d591836b5a6f5b345c0f07eefc08fc65d91"
+  dependencies:
+    util "0.10.3"
+
+assertion-error@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.0.0.tgz#c7f85438fdd466bc7ca16ab90c81513797a5d23b"
+
+assign-symbols@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
+
+ast-types@0.x.x:
+  version "0.11.2"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.2.tgz#cc4e1d15a36b39979a1986fe1e91321cbfae7783"
+
+astw@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/astw/-/astw-2.2.0.tgz#7bd41784d32493987aeb239b6b4e1c57a873b917"
+  dependencies:
+    acorn "^4.0.3"
+
+async-each@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
+
+async-limiter@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
+
+async@1.x, async@^1.4.0, async@^1.5.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+
+async@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.0.1.tgz#b709cc0280a9c36f09f4536be823c838a9049e25"
+  dependencies:
+    lodash "^4.8.0"
+
+async@^2.0.0, async@^2.1.2:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.0.tgz#61a29abb6fcc026fea77e56d1c6ec53a795951f4"
+  dependencies:
+    lodash "^4.14.0"
+
+async@~0.9.0:
+  version "0.9.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
+
+async@~2.1.2:
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.1.5.tgz#e587c68580994ac67fc56ff86d3ac56bdbe810bc"
+  dependencies:
+    lodash "^4.14.0"
+
+asynckit@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
+
+atob@^2.0.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-2.0.3.tgz#19c7a760473774468f20b2d2d03372ad7d4cbf5d"
+
+atob@~1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-1.1.3.tgz#95f13629b12c3a51a5d215abdce2aa9f32f80773"
+
+aws-sign2@~0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.5.0.tgz#c57103f7a17fc037f02d7c2e64b602ea223f7d63"
+
+aws-sign2@~0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
+
+aws-sign2@~0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
+
+aws4@^1.2.1, aws4@^1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
+
+axios@^0.15.3:
+  version "0.15.3"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.15.3.tgz#2c9d638b2e191a08ea1d6cc988eadd6ba5bdc053"
+  dependencies:
+    follow-redirects "1.0.0"
+
+babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
+  dependencies:
+    chalk "^1.1.3"
+    esutils "^2.0.2"
+    js-tokens "^3.0.2"
+
+babel-core@^6.25.0, babel-core@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.0.tgz#af32f78b31a6fcef119c87b0fd8d9753f03a0bb8"
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-generator "^6.26.0"
+    babel-helpers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-register "^6.26.0"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    convert-source-map "^1.5.0"
+    debug "^2.6.8"
+    json5 "^0.5.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.4"
+    path-is-absolute "^1.0.1"
+    private "^0.1.7"
+    slash "^1.0.0"
+    source-map "^0.5.6"
+
+babel-eslint@^8.0.3:
+  version "8.2.2"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.2.2.tgz#1102273354c6f0b29b4ea28a65f97d122296b68b"
+  dependencies:
+    "@babel/code-frame" "^7.0.0-beta.40"
+    "@babel/traverse" "^7.0.0-beta.40"
+    "@babel/types" "^7.0.0-beta.40"
+    babylon "^7.0.0-beta.40"
+    eslint-scope "~3.7.1"
+    eslint-visitor-keys "^1.0.0"
+
+babel-generator@^6.18.0, babel-generator@^6.26.0:
+  version "6.26.1"
+  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.1.tgz#1844408d3b8f0d35a404ea7ac180f087a601bd90"
+  dependencies:
+    babel-messages "^6.23.0"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    detect-indent "^4.0.0"
+    jsesc "^1.3.0"
+    lodash "^4.17.4"
+    source-map "^0.5.7"
+    trim-right "^1.0.1"
+
+babel-helper-call-delegate@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-call-delegate/-/babel-helper-call-delegate-6.24.1.tgz#ece6aacddc76e41c3461f88bfc575bd0daa2df8d"
+  dependencies:
+    babel-helper-hoist-variables "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
+babel-helper-define-map@^6.24.1:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-helper-define-map/-/babel-helper-define-map-6.26.0.tgz#a5f56dab41a25f97ecb498c7ebaca9819f95be5f"
+  dependencies:
+    babel-helper-function-name "^6.24.1"
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    lodash "^4.17.4"
+
+babel-helper-function-name@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
+  dependencies:
+    babel-helper-get-function-arity "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
+babel-helper-get-function-arity@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-get-function-arity/-/babel-helper-get-function-arity-6.24.1.tgz#8f7782aa93407c41d3aa50908f89b031b1b6853d"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
+babel-helper-hoist-variables@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-hoist-variables/-/babel-helper-hoist-variables-6.24.1.tgz#1ecb27689c9d25513eadbc9914a73f5408be7a76"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
+babel-helper-optimise-call-expression@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-optimise-call-expression/-/babel-helper-optimise-call-expression-6.24.1.tgz#f7a13427ba9f73f8f4fa993c54a97882d1244257"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-types "^6.24.1"
+
+babel-helper-regex@^6.24.1:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-helper-regex/-/babel-helper-regex-6.26.0.tgz#325c59f902f82f24b74faceed0363954f6495e72"
+  dependencies:
+    babel-runtime "^6.26.0"
+    babel-types "^6.26.0"
+    lodash "^4.17.4"
+
+babel-helper-replace-supers@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-replace-supers/-/babel-helper-replace-supers-6.24.1.tgz#bf6dbfe43938d17369a213ca8a8bf74b6a90ab1a"
+  dependencies:
+    babel-helper-optimise-call-expression "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
+babel-helper-vue-jsx-merge-props@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/babel-helper-vue-jsx-merge-props/-/babel-helper-vue-jsx-merge-props-2.0.3.tgz#22aebd3b33902328e513293a8e4992b384f9f1b6"
+
+babel-helpers@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helpers/-/babel-helpers-6.24.1.tgz#3471de9caec388e5c850e597e58a26ddf37602b2"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-loader@^7.0.0:
+  version "7.1.4"
+  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-7.1.4.tgz#e3463938bd4e6d55d1c174c5485d406a188ed015"
+  dependencies:
+    find-cache-dir "^1.0.0"
+    loader-utils "^1.0.2"
+    mkdirp "^0.5.1"
+
+babel-messages@^6.23.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
+  dependencies:
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+bl@^1.0.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.1.tgz#cac328f7bee45730d404b692203fcb590e172d5e"
+  dependencies:
+    readable-stream "^2.0.5"
+
+bl@~0.9.0:
+  version "0.9.5"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-0.9.5.tgz#c06b797af085ea00bc527afc8efcf11de2232054"
+  dependencies:
+    readable-stream "~1.0.26"
+
+bl@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-1.1.2.tgz#fdca871a99713aa00d19e3bbba41c44787a65398"
+  dependencies:
+    readable-stream "~2.0.5"
+
+blob@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
+
+block-stream@*:
+  version "0.0.9"
+  resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
+  dependencies:
+    inherits "~2.0.0"
+
+bluebird@^3.3.0, bluebird@^3.4.6:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
+
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
+  version "4.11.8"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
+
+body-parser@^1.16.1:
+  version "1.18.2"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.2.tgz#87678a19d84b47d859b83199bd59bce222b10454"
+  dependencies:
+    bytes "3.0.0"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.1"
+    http-errors "~1.6.2"
+    iconv-lite "0.4.19"
+    on-finished "~2.3.0"
+    qs "6.5.1"
+    raw-body "2.3.2"
+    type-is "~1.6.15"
+
+boom@0.4.x:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/boom/-/boom-0.4.2.tgz#7a636e9ded4efcefb19cef4947a3c67dfaee911b"
+  dependencies:
+    hoek "0.9.x"
+
+boom@2.x.x:
+  version "2.10.1"
+  resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
+  dependencies:
+    hoek "2.x.x"
+
+boom@4.x.x:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/boom/-/boom-4.3.1.tgz#4f8a3005cb4a7e3889f749030fd25b96e01d2e31"
+  dependencies:
+    hoek "4.x.x"
+
+boom@5.x.x:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/boom/-/boom-5.2.0.tgz#5dd9da6ee3a5f302077436290cb717d3f4a54e02"
+  dependencies:
+    hoek "4.x.x"
+
+brace-expansion@^1.0.0, brace-expansion@^1.1.7:
+  version "1.1.11"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
+  dependencies:
+    balanced-match "^1.0.0"
+    concat-map "0.0.1"
+
+braces@^0.1.2:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-0.1.5.tgz#c085711085291d8b75fdd74eab0f8597280711e6"
+  dependencies:
+    expand-range "^0.1.0"
+
+braces@^1.8.2:
+  version "1.8.5"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
+  dependencies:
+    expand-range "^1.8.1"
+    preserve "^0.2.0"
+    repeat-element "^1.1.2"
+
+braces@^2.3.0, braces@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.1.tgz#7086c913b4e5a08dbe37ac0ee6a2500c4ba691bb"
+  dependencies:
+    arr-flatten "^1.1.0"
+    array-unique "^0.3.2"
+    define-property "^1.0.0"
+    extend-shallow "^2.0.1"
+    fill-range "^4.0.0"
+    isobject "^3.0.1"
+    kind-of "^6.0.2"
+    repeat-element "^1.1.2"
+    snapdragon "^0.8.1"
+    snapdragon-node "^2.0.1"
+    split-string "^3.0.2"
+    to-regex "^3.0.1"
+
+brorand@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
+
+browser-pack@^6.0.1:
+  version "6.0.4"
+  resolved "https://registry.yarnpkg.com/browser-pack/-/browser-pack-6.0.4.tgz#9a73beb3b48f9e36868be007b64400102c04a99f"
+  dependencies:
+    JSONStream "^1.0.3"
+    combine-source-map "~0.8.0"
+    defined "^1.0.0"
+    safe-buffer "^5.1.1"
+    through2 "^2.0.0"
+    umd "^3.0.0"
+
+browser-process-hrtime@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/browser-process-hrtime/-/browser-process-hrtime-0.1.2.tgz#425d68a58d3447f02a04aa894187fce8af8b7b8e"
+
+browser-resolve@^1.11.0, browser-resolve@^1.11.2, browser-resolve@^1.7.0:
+  version "1.11.2"
+  resolved "https://registry.yarnpkg.com/browser-resolve/-/browser-resolve-1.11.2.tgz#8ff09b0a2c421718a1051c260b32e48f442938ce"
+  dependencies:
+    resolve "1.1.7"
+
+browser-stdout@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
+
+browserify-aes@^1.0.0, browserify-aes@^1.0.4:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-1.1.1.tgz#38b7ab55edb806ff2dcda1a7f1620773a477c49f"
+  dependencies:
+    buffer-xor "^1.0.3"
+    cipher-base "^1.0.0"
+    create-hash "^1.1.0"
+    evp_bytestokey "^1.0.3"
+    inherits "^2.0.1"
+    safe-buffer "^5.0.1"
+
+browserify-cipher@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/browserify-cipher/-/browserify-cipher-1.0.0.tgz#9988244874bf5ed4e28da95666dcd66ac8fc363a"
+  dependencies:
+    browserify-aes "^1.0.4"
+    browserify-des "^1.0.0"
+    evp_bytestokey "^1.0.0"
+
+browserify-des@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/browserify-des/-/browserify-des-1.0.0.tgz#daa277717470922ed2fe18594118a175439721dd"
+  dependencies:
+    cipher-base "^1.0.1"
+    des.js "^1.0.0"
+    inherits "^2.0.1"
+
+browserify-rsa@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
+  dependencies:
+    bn.js "^4.1.0"
+    randombytes "^2.0.1"
+
+browserify-sign@^4.0.0:
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.0.4.tgz#aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298"
+  dependencies:
+    bn.js "^4.1.1"
+    browserify-rsa "^4.0.0"
+    create-hash "^1.1.0"
+    create-hmac "^1.1.2"
+    elliptic "^6.0.0"
+    inherits "^2.0.1"
+    parse-asn1 "^5.0.0"
+
+browserify-zlib@^0.2.0, browserify-zlib@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/browserify-zlib/-/browserify-zlib-0.2.0.tgz#2869459d9aa3be245fe8fe2ca1f46e2e7f54d73f"
+  dependencies:
+    pako "~1.0.5"
+
+browserify@^14.5.0:
+  version "14.5.0"
+  resolved "https://registry.yarnpkg.com/browserify/-/browserify-14.5.0.tgz#0bbbce521acd6e4d1d54d8e9365008efb85a9cc5"
+  dependencies:
+    JSONStream "^1.0.3"
+    assert "^1.4.0"
+    browser-pack "^6.0.1"
+    browser-resolve "^1.11.0"
+    browserify-zlib "~0.2.0"
+    buffer "^5.0.2"
+    cached-path-relative "^1.0.0"
+    concat-stream "~1.5.1"
+    console-browserify "^1.1.0"
+    constants-browserify "~1.0.0"
+    crypto-browserify "^3.0.0"
+    defined "^1.0.0"
+    deps-sort "^2.0.0"
+    domain-browser "~1.1.0"
+    duplexer2 "~0.1.2"
+    events "~1.1.0"
+    glob "^7.1.0"
+    has "^1.0.0"
+    htmlescape "^1.1.0"
+    https-browserify "^1.0.0"
+    inherits "~2.0.1"
+    insert-module-globals "^7.0.0"
+    labeled-stream-splicer "^2.0.0"
+    module-deps "^4.0.8"
+    os-browserify "~0.3.0"
+    parents "^1.0.1"
+    path-browserify "~0.0.0"
+    process "~0.11.0"
+    punycode "^1.3.2"
+    querystring-es3 "~0.2.0"
+    read-only-stream "^2.0.0"
+    readable-stream "^2.0.2"
+    resolve "^1.1.4"
+    shasum "^1.0.0"
+    shell-quote "^1.6.1"
+    stream-browserify "^2.0.0"
+    stream-http "^2.0.0"
+    string_decoder "~1.0.0"
+    subarg "^1.0.0"
+    syntax-error "^1.1.1"
+    through2 "^2.0.0"
+    timers-browserify "^1.0.1"
+    tty-browserify "~0.0.0"
+    url "~0.11.0"
+    util "~0.10.1"
+    vm-browserify "~0.0.1"
+    xtend "^4.0.0"
+
+buble@^0.19.2, buble@^0.19.3:
+  version "0.19.3"
+  resolved "https://registry.yarnpkg.com/buble/-/buble-0.19.3.tgz#01e9412062cff1da6f20342b6ecd72e7bf699d02"
+  dependencies:
+    acorn "^5.4.1"
+    acorn-dynamic-import "^3.0.0"
+    acorn-jsx "^4.1.1"
+    chalk "^2.3.1"
+    magic-string "^0.22.4"
+    minimist "^1.2.0"
+    os-homedir "^1.0.1"
+    vlq "^1.0.0"
+
+buffer-crc32@^0.2.1:
+  version "0.2.13"
+  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
+
+buffer-more-ints@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/buffer-more-ints/-/buffer-more-ints-0.0.2.tgz#26b3885d10fa13db7fc01aae3aab870199e0124c"
+
+buffer-xor@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
+
+buffer@^4.3.0:
+  version "4.9.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
+  dependencies:
+    base64-js "^1.0.2"
+    ieee754 "^1.1.4"
+    isarray "^1.0.0"
+
+buffer@^5.0.2:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.1.0.tgz#c913e43678c7cb7c8bd16afbcddb6c5505e8f9fe"
+  dependencies:
+    base64-js "^1.0.2"
+    ieee754 "^1.1.4"
+
+buildmail@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/buildmail/-/buildmail-4.0.1.tgz#877f7738b78729871c9a105e3b837d2be11a7a72"
+  dependencies:
+    addressparser "1.0.1"
+    libbase64 "0.1.0"
+    libmime "3.0.0"
+    libqp "1.1.0"
+    nodemailer-fetch "1.6.0"
+    nodemailer-shared "1.1.0"
+    punycode "1.4.1"
+
+builtin-modules@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
+
+builtin-modules@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-2.0.0.tgz#60b7ef5ae6546bd7deefa74b08b62a43a232648e"
+
+builtin-status-codes@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
+
+bytes@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
+
+cache-base@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
+  dependencies:
+    collection-visit "^1.0.0"
+    component-emitter "^1.2.1"
+    get-value "^2.0.6"
+    has-value "^1.0.0"
+    isobject "^3.0.1"
+    set-value "^2.0.0"
+    to-object-path "^0.3.0"
+    union-value "^1.0.0"
+    unset-value "^1.0.0"
+
+cached-path-relative@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/cached-path-relative/-/cached-path-relative-1.0.1.tgz#d09c4b52800aa4c078e2dd81a869aac90d2e54e7"
+
+cachedir@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/cachedir/-/cachedir-1.2.0.tgz#e9a0a25bb21a2b7a0f766f07c41eb7a311919b97"
+  dependencies:
+    os-homedir "^1.0.1"
+
+caller-path@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
+  dependencies:
+    callsites "^0.2.0"
+
+callsite@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
+
+callsites@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
+
+callsites@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
+
+camelcase-keys@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
+  dependencies:
+    camelcase "^2.0.0"
+    map-obj "^1.0.0"
+
+camelcase-keys@^4.0.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-4.2.0.tgz#a2aa5fb1af688758259c32c141426d78923b9b77"
+  dependencies:
+    camelcase "^4.1.0"
+    map-obj "^2.0.0"
+    quick-lru "^1.0.0"
+
+camelcase@^1.0.2:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
+
+camelcase@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
+
+camelcase@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
+
+caseless@~0.11.0:
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.11.0.tgz#715b96ea9841593cc33067923f5ec60ebda4f7d7"
+
+caseless@~0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
+
+caseless@~0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.6.0.tgz#8167c1ab8397fb5bb95f96d28e5a81c50f247ac4"
+
+center-align@^0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/center-align/-/center-align-0.1.3.tgz#aa0d32629b6ee972200411cbd4461c907bc2b7ad"
+  dependencies:
+    align-text "^0.1.3"
+    lazy-cache "^1.0.3"
+
+chai-nightwatch@~0.1.x:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/chai-nightwatch/-/chai-nightwatch-0.1.1.tgz#1ca56de768d3c0868fe7fc2f4d32c2fe894e6be9"
+  dependencies:
+    assertion-error "1.0.0"
+    deep-eql "0.1.3"
+
+chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  dependencies:
+    ansi-styles "^2.2.1"
+    escape-string-regexp "^1.0.2"
+    has-ansi "^2.0.0"
+    strip-ansi "^3.0.0"
+    supports-color "^2.0.0"
+
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.2.tgz#250dc96b07491bfd601e648d66ddf5f60c7a5c65"
+  dependencies:
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
+
+chardet@^0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
+
+chokidar@^1.4.1, chokidar@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
+  dependencies:
+    anymatch "^1.3.0"
+    async-each "^1.0.0"
+    glob-parent "^2.0.0"
+    inherits "^2.0.1"
+    is-binary-path "^1.0.0"
+    is-glob "^2.0.0"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.0.0"
+  optionalDependencies:
+    fsevents "^1.0.0"
+
+chokidar@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.2.tgz#4dc65139eeb2714977735b6a35d06e97b494dfd7"
+  dependencies:
+    anymatch "^2.0.0"
+    async-each "^1.0.0"
+    braces "^2.3.0"
+    glob-parent "^3.1.0"
+    inherits "^2.0.1"
+    is-binary-path "^1.0.0"
+    is-glob "^4.0.0"
+    normalize-path "^2.1.1"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.0.0"
+    upath "^1.0.0"
+  optionalDependencies:
+    fsevents "^1.0.0"
+
+chromedriver@^2.30.1:
+  version "2.36.0"
+  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-2.36.0.tgz#6a9473e11b50e7181ef8cd6476680e7f167374cd"
+  dependencies:
+    del "^3.0.0"
+    extract-zip "^1.6.5"
+    kew "^0.7.0"
+    mkdirp "^0.5.1"
+    request "^2.83.0"
+
+ci-info@^1.0.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.1.2.tgz#03561259db48d0474c8bdc90f5b47b068b6bbfb4"
+
+cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/cipher-base/-/cipher-base-1.0.4.tgz#8760e4ecc272f4c363532f926d874aae2c1397de"
+  dependencies:
+    inherits "^2.0.1"
+    safe-buffer "^5.0.1"
+
+circular-json@^0.3.1:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
+
+circular-json@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.5.1.tgz#b8942a09e535863dc21b04417a91971e1d9cd91f"
+
+class-utils@^0.3.5:
+  version "0.3.6"
+  resolved "https://registry.yarnpkg.com/class-utils/-/class-utils-0.3.6.tgz#f93369ae8b9a7ce02fd41faad0ca83033190c463"
+  dependencies:
+    arr-union "^3.1.0"
+    define-property "^0.2.5"
+    isobject "^3.0.0"
+    static-extend "^0.1.1"
+
+cli-cursor@^1.0.1, cli-cursor@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
+  dependencies:
+    restore-cursor "^1.0.1"
+
+cli-cursor@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
+  dependencies:
+    restore-cursor "^2.0.0"
+
+cli-spinners@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-0.1.2.tgz#bb764d88e185fb9e1e6a2a1f19772318f605e31c"
+
+cli-truncate@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/cli-truncate/-/cli-truncate-0.2.1.tgz#9f15cfbb0705005369216c626ac7d05ab90dd574"
+  dependencies:
+    slice-ansi "0.0.4"
+    string-width "^1.0.1"
+
+cli-width@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
+
+cliui@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
+  dependencies:
+    center-align "^0.1.1"
+    right-align "^0.1.1"
+    wordwrap "0.0.2"
+
+cliui@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wrap-ansi "^2.0.0"
+
+co@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
+
+co@~3.0.6:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/co/-/co-3.0.6.tgz#1445f226c5eb956138e68c9ac30167ea7d2e6bda"
+
+code-point-at@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
+
+codecov.io@^0.1.6:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/codecov.io/-/codecov.io-0.1.6.tgz#59dfd02da1ff31c2fb2b952ad8ad16fd3781b728"
+  dependencies:
+    request "2.42.0"
+    urlgrey "0.4.0"
+
+collection-visit@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/collection-visit/-/collection-visit-1.0.0.tgz#4bc0373c164bc3291b4d368c829cf1a80a59dca0"
+  dependencies:
+    map-visit "^1.0.0"
+    object-visit "^1.0.0"
+
+color-convert@^1.9.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.1.tgz#c1261107aeb2f294ebffec9ed9ecad529a6097ed"
+  dependencies:
+    color-name "^1.1.1"
+
+color-name@^1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+
+colors@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+
+colors@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
+
+combine-lists@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/combine-lists/-/combine-lists-1.0.1.tgz#458c07e09e0d900fc28b70a3fec2dacd1d2cb7f6"
+  dependencies:
+    lodash "^4.5.0"
+
+combine-source-map@~0.7.1:
+  version "0.7.2"
+  resolved "https://registry.yarnpkg.com/combine-source-map/-/combine-source-map-0.7.2.tgz#0870312856b307a87cc4ac486f3a9a62aeccc09e"
+  dependencies:
+    convert-source-map "~1.1.0"
+    inline-source-map "~0.6.0"
+    lodash.memoize "~3.0.3"
+    source-map "~0.5.3"
+
+combine-source-map@~0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/combine-source-map/-/combine-source-map-0.8.0.tgz#a58d0df042c186fcf822a8e8015f5450d2d79a8b"
+  dependencies:
+    convert-source-map "~1.1.0"
+    inline-source-map "~0.6.0"
+    lodash.memoize "~3.0.3"
+    source-map "~0.5.3"
+
+combined-stream@1.0.6, combined-stream@^1.0.5, combined-stream@~1.0.5:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
+  dependencies:
+    delayed-stream "~1.0.0"
+
+combined-stream@~0.0.4:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-0.0.7.tgz#0137e657baa5a7541c57ac37ac5fc07d73b4dc1f"
+  dependencies:
+    delayed-stream "0.0.5"
+
+commander@2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
+  dependencies:
+    graceful-readlink ">= 1.0.0"
+
+commander@^2.14.1, commander@^2.9.0, commander@~2.14.1:
+  version "2.14.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.14.1.tgz#2235123e37af8ca3c65df45b026dbd357b01b9aa"
+
+commitizen@^2.9.6:
+  version "2.9.6"
+  resolved "https://registry.yarnpkg.com/commitizen/-/commitizen-2.9.6.tgz#c0d00535ef264da7f63737edfda4228983fa2291"
+  dependencies:
+    cachedir "^1.1.0"
+    chalk "1.1.3"
+    cz-conventional-changelog "1.2.0"
+    dedent "0.6.0"
+    detect-indent "4.0.0"
+    find-node-modules "1.0.4"
+    find-root "1.0.0"
+    fs-extra "^1.0.0"
+    glob "7.1.1"
+    inquirer "1.2.3"
+    lodash "4.17.2"
+    minimist "1.2.0"
+    path-exists "2.1.0"
+    shelljs "0.7.6"
+    strip-json-comments "2.0.1"
+
+commondir@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
+
+compare-func@^1.3.1:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/compare-func/-/compare-func-1.3.2.tgz#99dd0ba457e1f9bc722b12c08ec33eeab31fa648"
+  dependencies:
+    array-ify "^1.0.0"
+    dot-prop "^3.0.0"
+
+component-bind@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
+
+component-emitter@1.2.1, component-emitter@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
+
+component-inherit@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
+
+compress-commons@^1.2.0:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/compress-commons/-/compress-commons-1.2.2.tgz#524a9f10903f3a813389b0225d27c48bb751890f"
+  dependencies:
+    buffer-crc32 "^0.2.1"
+    crc32-stream "^2.0.0"
+    normalize-path "^2.0.0"
+    readable-stream "^2.0.0"
+
+concat-map@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
+
+concat-stream@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
+  dependencies:
+    inherits "^2.0.3"
+    readable-stream "^2.2.2"
+    typedarray "^0.0.6"
+
+concat-stream@^1.4.7, concat-stream@^1.6.0:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.1.tgz#261b8f518301f1d834e36342b9fea095d2620a26"
+  dependencies:
+    inherits "^2.0.3"
+    readable-stream "^2.2.2"
+    typedarray "^0.0.6"
+
+concat-stream@~1.5.0, concat-stream@~1.5.1:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.5.2.tgz#708978624d856af41a5a741defdd261da752c266"
+  dependencies:
+    inherits "~2.0.1"
+    readable-stream "~2.0.0"
+    typedarray "~0.0.5"
+
+connect@^3.6.0:
+  version "3.6.6"
+  resolved "https://registry.yarnpkg.com/connect/-/connect-3.6.6.tgz#09eff6c55af7236e137135a72574858b6786f524"
+  dependencies:
+    debug "2.6.9"
+    finalhandler "1.1.0"
+    parseurl "~1.3.2"
+    utils-merge "1.0.1"
+
+console-browserify@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/console-browserify/-/console-browserify-1.1.0.tgz#f0241c45730a9fc6323b206dbf38edc741d0bb10"
+  dependencies:
+    date-now "^0.1.4"
+
+console-control-strings@^1.0.0, console-control-strings@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
+
+constants-browserify@^1.0.0, constants-browserify@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
+
+content-type-parser@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/content-type-parser/-/content-type-parser-1.0.2.tgz#caabe80623e63638b2502fd4c7f12ff4ce2352e7"
+
+content-type@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
+
+conventional-changelog-angular@^1.6.6:
+  version "1.6.6"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-angular/-/conventional-changelog-angular-1.6.6.tgz#b27f2b315c16d0a1f23eb181309d0e6a4698ea0f"
+  dependencies:
+    compare-func "^1.3.1"
+    q "^1.5.1"
+
+conventional-changelog-atom@^0.2.4:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-atom/-/conventional-changelog-atom-0.2.4.tgz#4917759947f4db86073f9d3838a2d54302d5843d"
+  dependencies:
+    q "^1.5.1"
+
+conventional-changelog-codemirror@^0.3.4:
+  version "0.3.4"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-codemirror/-/conventional-changelog-codemirror-0.3.4.tgz#debc43991d487d7964e65087fbbe034044bd51fb"
+  dependencies:
+    q "^1.5.1"
+
+conventional-changelog-core@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-core/-/conventional-changelog-core-2.0.5.tgz#45b6347c4c6512e1f163f7ff55c9f5bcb88fd990"
+  dependencies:
+    conventional-changelog-writer "^3.0.4"
+    conventional-commits-parser "^2.1.5"
+    dateformat "^3.0.0"
+    get-pkg-repo "^1.0.0"
+    git-raw-commits "^1.3.4"
+    git-remote-origin-url "^2.0.0"
+    git-semver-tags "^1.3.4"
+    lodash "^4.2.1"
+    normalize-package-data "^2.3.5"
+    q "^1.5.1"
+    read-pkg "^1.1.0"
+    read-pkg-up "^1.0.1"
+    through2 "^2.0.0"
+
+conventional-changelog-ember@^0.3.6:
+  version "0.3.6"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-ember/-/conventional-changelog-ember-0.3.6.tgz#f3825d7434168f3d9211b5532dc1d5769532b668"
+  dependencies:
+    q "^1.5.1"
+
+conventional-changelog-eslint@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-eslint/-/conventional-changelog-eslint-1.0.5.tgz#8bae05ebbf574e6506caf7b37dc51ca21b74d220"
+  dependencies:
+    q "^1.5.1"
+
+conventional-changelog-express@^0.3.4:
+  version "0.3.4"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-express/-/conventional-changelog-express-0.3.4.tgz#812a9cf778677e12f978ac9c40d85297c0bfcca9"
+  dependencies:
+    q "^1.5.1"
+
+conventional-changelog-jquery@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-jquery/-/conventional-changelog-jquery-0.1.0.tgz#0208397162e3846986e71273b6c79c5b5f80f510"
+  dependencies:
+    q "^1.4.1"
+
+conventional-changelog-jscs@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-jscs/-/conventional-changelog-jscs-0.1.0.tgz#0479eb443cc7d72c58bf0bcf0ef1d444a92f0e5c"
+  dependencies:
+    q "^1.4.1"
+
+conventional-changelog-jshint@^0.3.4:
+  version "0.3.4"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-jshint/-/conventional-changelog-jshint-0.3.4.tgz#b2de33cd0870d9af804ac6a4fded0ee25b69c9bb"
+  dependencies:
+    compare-func "^1.3.1"
+    q "^1.5.1"
+
+conventional-changelog-preset-loader@^1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-preset-loader/-/conventional-changelog-preset-loader-1.1.6.tgz#b29af6332f9313857be36427623c9016bfeeaf33"
+
+conventional-changelog-writer@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-writer/-/conventional-changelog-writer-3.0.4.tgz#705b46a8b8277bd7fd79cad8032095b5d803864c"
+  dependencies:
+    compare-func "^1.3.1"
+    conventional-commits-filter "^1.1.5"
+    dateformat "^3.0.0"
+    handlebars "^4.0.2"
+    json-stringify-safe "^5.0.1"
+    lodash "^4.2.1"
+    meow "^4.0.0"
+    semver "^5.5.0"
+    split "^1.0.0"
+    through2 "^2.0.0"
+
+conventional-changelog@^1.1.3:
+  version "1.1.18"
+  resolved "https://registry.yarnpkg.com/conventional-changelog/-/conventional-changelog-1.1.18.tgz#ffe28798e4ddef5f6e2f74398e8248bcb233360b"
+  dependencies:
+    conventional-changelog-angular "^1.6.6"
+    conventional-changelog-atom "^0.2.4"
+    conventional-changelog-codemirror "^0.3.4"
+    conventional-changelog-core "^2.0.5"
+    conventional-changelog-ember "^0.3.6"
+    conventional-changelog-eslint "^1.0.5"
+    conventional-changelog-express "^0.3.4"
+    conventional-changelog-jquery "^0.1.0"
+    conventional-changelog-jscs "^0.1.0"
+    conventional-changelog-jshint "^0.3.4"
+    conventional-changelog-preset-loader "^1.1.6"
+
+conventional-commit-types@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/conventional-commit-types/-/conventional-commit-types-2.2.0.tgz#5db95739d6c212acbe7b6f656a11b940baa68946"
+
+conventional-commits-filter@^1.1.5:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/conventional-commits-filter/-/conventional-commits-filter-1.1.5.tgz#77aac065e3de9c1a74b801e8e25c9affb3184f65"
+  dependencies:
+    is-subset "^0.1.1"
+    modify-values "^1.0.0"
+
+conventional-commits-parser@^2.1.5:
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/conventional-commits-parser/-/conventional-commits-parser-2.1.5.tgz#9ac3a4ab221c0c3c9e9dd2c09ae01e6d1e1dabe0"
+  dependencies:
+    JSONStream "^1.0.4"
+    is-text-path "^1.0.0"
+    lodash "^4.2.1"
+    meow "^4.0.0"
+    split2 "^2.0.0"
+    through2 "^2.0.0"
+    trim-off-newlines "^1.0.0"
+
+convert-source-map@^1.5.0:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
+
+convert-source-map@~1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.1.3.tgz#4829c877e9fe49b3161f3bf3673888e204699860"
+
+cookie@0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
+
+copy-descriptor@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
+
+core-js@^2.2.0, core-js@^2.4.0, core-js@^2.5.0:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
+
+core-util-is@1.0.2, core-util-is@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
+
+corser@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/corser/-/corser-2.0.1.tgz#8eda252ecaab5840dcd975ceb90d9370c819ff87"
+
+cosmiconfig@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-4.0.0.tgz#760391549580bbd2df1e562bc177b13c290972dc"
+  dependencies:
+    is-directory "^0.3.1"
+    js-yaml "^3.9.0"
+    parse-json "^4.0.0"
+    require-from-string "^2.0.1"
+
+crc32-stream@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/crc32-stream/-/crc32-stream-2.0.0.tgz#e3cdd3b4df3168dd74e3de3fbbcb7b297fe908f4"
+  dependencies:
+    crc "^3.4.4"
+    readable-stream "^2.0.0"
+
+crc@^3.4.4:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/crc/-/crc-3.5.0.tgz#98b8ba7d489665ba3979f59b21381374101a1964"
+
+create-ecdh@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.0.tgz#888c723596cdf7612f6498233eebd7a35301737d"
+  dependencies:
+    bn.js "^4.1.0"
+    elliptic "^6.0.0"
+
+create-hash@^1.1.0, create-hash@^1.1.2:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.1.3.tgz#606042ac8b9262750f483caddab0f5819172d8fd"
+  dependencies:
+    cipher-base "^1.0.1"
+    inherits "^2.0.1"
+    ripemd160 "^2.0.0"
+    sha.js "^2.4.0"
+
+create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/create-hmac/-/create-hmac-1.1.6.tgz#acb9e221a4e17bdb076e90657c42b93e3726cf06"
+  dependencies:
+    cipher-base "^1.0.3"
+    create-hash "^1.1.0"
+    inherits "^2.0.1"
+    ripemd160 "^2.0.0"
+    safe-buffer "^5.0.1"
+    sha.js "^2.4.8"
+
+cross-spawn@^5.0.1, cross-spawn@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  dependencies:
+    lru-cache "^4.0.1"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
+cryptiles@0.2.x:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-0.2.2.tgz#ed91ff1f17ad13d3748288594f8a48a0d26f325c"
+  dependencies:
+    boom "0.4.x"
+
+cryptiles@2.x.x:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
+  dependencies:
+    boom "2.x.x"
+
+cryptiles@3.x.x:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-3.1.2.tgz#a89fbb220f5ce25ec56e8c4aa8a4fd7b5b0d29fe"
+  dependencies:
+    boom "5.x.x"
+
+crypto-browserify@^3.0.0, crypto-browserify@^3.11.0:
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
+  dependencies:
+    browserify-cipher "^1.0.0"
+    browserify-sign "^4.0.0"
+    create-ecdh "^4.0.0"
+    create-hash "^1.1.0"
+    create-hmac "^1.1.0"
+    diffie-hellman "^5.0.0"
+    inherits "^2.0.1"
+    pbkdf2 "^3.0.3"
+    public-encrypt "^4.0.0"
+    randombytes "^2.0.0"
+    randomfill "^1.0.3"
+
+css@~2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/css/-/css-2.2.1.tgz#73a4c81de85db664d4ee674f7d47085e3b2d55dc"
+  dependencies:
+    inherits "^2.0.1"
+    source-map "^0.1.38"
+    source-map-resolve "^0.3.0"
+    urix "^0.1.0"
+
+cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.2.tgz#b8036170c79f07a90ff2f16e22284027a243848b"
+
+"cssstyle@>= 0.2.37 < 0.3.0":
+  version "0.2.37"
+  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-0.2.37.tgz#541097234cb2513c83ceed3acddc27ff27987d54"
+  dependencies:
+    cssom "0.3.x"
+
+ctype@0.5.3:
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/ctype/-/ctype-0.5.3.tgz#82c18c2461f74114ef16c135224ad0b9144ca12f"
+
+currently-unhandled@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
+  dependencies:
+    array-find-index "^1.0.1"
+
+custom-event@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/custom-event/-/custom-event-1.0.1.tgz#5d02a46850adf1b4a317946a3928fccb5bfd0425"
+
+cz-conventional-changelog@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-1.2.0.tgz#2bca04964c8919b23f3fd6a89ef5e6008b31b3f8"
+  dependencies:
+    conventional-commit-types "^2.0.0"
+    lodash.map "^4.5.1"
+    longest "^1.0.1"
+    pad-right "^0.2.2"
+    right-pad "^1.0.1"
+    word-wrap "^1.0.3"
+
+cz-conventional-changelog@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-2.1.0.tgz#2f4bc7390e3244e4df293e6ba351e4c740a7c764"
+  dependencies:
+    conventional-commit-types "^2.0.0"
+    lodash.map "^4.5.1"
+    longest "^1.0.1"
+    right-pad "^1.0.1"
+    word-wrap "^1.0.3"
+
+d@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
+  dependencies:
+    es5-ext "^0.10.9"
+
+dargs@^4.0.1:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/dargs/-/dargs-4.1.0.tgz#03a9dbb4b5c2f139bf14ae53f0b8a2a6a86f4e17"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+dashdash@^1.12.0:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
+  dependencies:
+    assert-plus "^1.0.0"
+
+data-uri-to-buffer@1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/data-uri-to-buffer/-/data-uri-to-buffer-1.2.0.tgz#77163ea9c20d8641b4707e8f18abdf9a78f34835"
+
+date-fns@^1.27.2:
+  version "1.29.0"
+  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.29.0.tgz#12e609cdcb935127311d04d33334e2960a2a54e6"
+
+date-format@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/date-format/-/date-format-1.2.0.tgz#615e828e233dd1ab9bb9ae0950e0ceccfa6ecad8"
+
+date-now@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
+
+dateformat@^1.0.6:
+  version "1.0.12"
+  resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-1.0.12.tgz#9f124b67594c937ff706932e4a642cca8dbbfee9"
+  dependencies:
+    get-stdin "^4.0.1"
+    meow "^3.3.0"
+
+dateformat@^3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-3.0.3.tgz#a6e37499a4d9a9cf85ef5872044d62901c9889ae"
+
+de-indent@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/de-indent/-/de-indent-1.0.2.tgz#b2038e846dc33baa5796128d0804b455b8c1e21d"
+
+debug@2, debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@~2.6.4, debug@~2.6.6:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  dependencies:
+    ms "2.0.0"
+
+debug@2.2.0, debug@~2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
+  dependencies:
+    ms "0.7.1"
+
+debug@^3.0.1, debug@^3.1.0, debug@~3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  dependencies:
+    ms "2.0.0"
+
+decamelize-keys@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
+  dependencies:
+    decamelize "^1.1.0"
+    map-obj "^1.0.0"
+
+decamelize@^1.0.0, decamelize@^1.1.0, decamelize@^1.1.1, decamelize@^1.1.2:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
+
+decode-uri-component@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
+
+dedent@0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.6.0.tgz#0e6da8f0ce52838ef5cec5c8f9396b0c1b64a3cb"
+
+dedent@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
+
+deep-eql@0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-0.1.3.tgz#ef558acab8de25206cd713906d74e56930eb69f2"
+  dependencies:
+    type-detect "0.1.1"
+
+deep-equal@~0.1.0:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-0.1.2.tgz#b246c2b80a570a47c11be1d9bd1070ec878b87ce"
+
+deep-extend@~0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
+
+deep-is@~0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
+
+define-property@^0.2.5:
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-0.2.5.tgz#c35b1ef918ec3c990f9a5bc57be04aacec5c8116"
+  dependencies:
+    is-descriptor "^0.1.0"
+
+define-property@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-1.0.0.tgz#769ebaaf3f4a63aad3af9e8d304c9bbe79bfb0e6"
+  dependencies:
+    is-descriptor "^1.0.0"
+
+define-property@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-2.0.2.tgz#d459689e8d654ba77e02a817f8710d702cb16e9d"
+  dependencies:
+    is-descriptor "^1.0.2"
+    isobject "^3.0.1"
+
+defined@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
+
+defined@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/defined/-/defined-0.0.0.tgz#f35eea7d705e933baf13b2f03b3f83d921403b3e"
+
+degenerator@~1.0.2:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/degenerator/-/degenerator-1.0.4.tgz#fcf490a37ece266464d9cc431ab98c5819ced095"
+  dependencies:
+    ast-types "0.x.x"
+    escodegen "1.x.x"
+    esprima "3.x.x"
+
+del@^2.0.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
+  dependencies:
+    globby "^5.0.0"
+    is-path-cwd "^1.0.0"
+    is-path-in-cwd "^1.0.0"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    rimraf "^2.2.8"
+
+del@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/del/-/del-3.0.0.tgz#53ecf699ffcbcb39637691ab13baf160819766e5"
+  dependencies:
+    globby "^6.1.0"
+    is-path-cwd "^1.0.0"
+    is-path-in-cwd "^1.0.0"
+    p-map "^1.1.1"
+    pify "^3.0.0"
+    rimraf "^2.2.8"
+
+delayed-stream@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-0.0.5.tgz#d4b1f43a93e8296dfe02694f4680bc37a313c73f"
+
+delayed-stream@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
+
+delegates@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
+
+depd@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.1.tgz#5783b4e1c459f06fa5ca27f991f3d06e7a310359"
+
+depd@~1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
+
+deps-sort@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/deps-sort/-/deps-sort-2.0.0.tgz#091724902e84658260eb910748cccd1af6e21fb5"
+  dependencies:
+    JSONStream "^1.0.3"
+    shasum "^1.0.0"
+    subarg "^1.0.0"
+    through2 "^2.0.0"
+
+des.js@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/des.js/-/des.js-1.0.0.tgz#c074d2e2aa6a8a9a07dbd61f9a15c2cd83ec8ecc"
+  dependencies:
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+
+detect-file@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/detect-file/-/detect-file-0.1.0.tgz#4935dedfd9488648e006b0129566e9386711ea63"
+  dependencies:
+    fs-exists-sync "^0.1.0"
+
+detect-indent@4.0.0, detect-indent@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
+  dependencies:
+    repeating "^2.0.0"
+
+detect-libc@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
+
+detective@^4.0.0:
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/detective/-/detective-4.7.1.tgz#0eca7314338442febb6d65da54c10bb1c82b246e"
+  dependencies:
+    acorn "^5.2.1"
+    defined "^1.0.0"
+
+di@^0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/di/-/di-0.0.1.tgz#806649326ceaa7caa3306d75d985ea2748ba913c"
+
+diff@1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-1.4.0.tgz#7f28d2eb9ee7b15a97efd89ce63dcfdaa3ccbabf"
+
+diff@^3.2.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
+
+diffie-hellman@^5.0.0:
+  version "5.0.2"
+  resolved "https://registry.yarnpkg.com/diffie-hellman/-/diffie-hellman-5.0.2.tgz#b5835739270cfe26acf632099fded2a07f209e5e"
+  dependencies:
+    bn.js "^4.1.0"
+    miller-rabin "^4.0.0"
+    randombytes "^2.0.0"
+
+doctrine@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
+  dependencies:
+    esutils "^2.0.2"
+
+dom-serialize@^2.2.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/dom-serialize/-/dom-serialize-2.2.1.tgz#562ae8999f44be5ea3076f5419dcd59eb43ac95b"
+  dependencies:
+    custom-event "~1.0.0"
+    ent "~2.2.0"
+    extend "^3.0.0"
+    void-elements "^2.0.0"
+
+dom-serializer@0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
+  dependencies:
+    domelementtype "~1.1.1"
+    entities "~1.1.1"
+
+domain-browser@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
+
+domain-browser@~1.1.0:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.1.7.tgz#867aa4b093faa05f1de08c06f4d7b21fdf8698bc"
+
+domelementtype@1, domelementtype@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
+
+domelementtype@~1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
+
+domexception@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/domexception/-/domexception-1.0.1.tgz#937442644ca6a31261ef36e3ec677fe805582c90"
+  dependencies:
+    webidl-conversions "^4.0.2"
+
+domhandler@^2.3.0:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.1.tgz#892e47000a99be55bbf3774ffea0561d8879c259"
+  dependencies:
+    domelementtype "1"
+
+domutils@^1.5.1:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.7.0.tgz#56ea341e834e06e6748af7a1cb25da67ea9f8c2a"
+  dependencies:
+    dom-serializer "0"
+    domelementtype "1"
+
+dot-prop@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-3.0.0.tgz#1b708af094a49c9a0e7dbcad790aba539dac1177"
+  dependencies:
+    is-obj "^1.0.0"
+
+double-ended-queue@^2.1.0-0:
+  version "2.1.0-0"
+  resolved "https://registry.yarnpkg.com/double-ended-queue/-/double-ended-queue-2.1.0-0.tgz#103d3527fd31528f40188130c841efdd78264e5c"
+
+duplexer2@^0.1.2, duplexer2@~0.1.0, duplexer2@~0.1.2:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/duplexer2/-/duplexer2-0.1.4.tgz#8b12dab878c0d69e3e7891051662a32fc6bddcc1"
+  dependencies:
+    readable-stream "^2.0.2"
+
+duplexer@~0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
+
+ecc-jsbn@~0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
+  dependencies:
+    jsbn "~0.1.0"
+
+ecstatic@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-3.2.0.tgz#1b1aee1ca7c6b99cfb5cf6c9b26b481b90c4409f"
+  dependencies:
+    he "^1.1.1"
+    mime "^1.4.1"
+    minimist "^1.1.0"
+    url-join "^2.0.2"
+
+ee-first@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
+
+ejs@2.5.7:
+  version "2.5.7"
+  resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.7.tgz#cc872c168880ae3c7189762fd5ffc00896c9518a"
+
+elegant-spinner@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
+
+elliptic@^6.0.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
+  dependencies:
+    bn.js "^4.4.0"
+    brorand "^1.0.1"
+    hash.js "^1.0.0"
+    hmac-drbg "^1.0.0"
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+    minimalistic-crypto-utils "^1.0.0"
+
+emojis-list@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
+
+encodeurl@~1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+
+end-of-stream@^1.0.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.1.tgz#ed29634d19baba463b6ce6b80a37213eab71ec43"
+  dependencies:
+    once "^1.4.0"
+
+engine.io-client@~3.1.0:
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.1.5.tgz#85de17666560327ef1817978f6e3f8101ded2c47"
+  dependencies:
+    component-emitter "1.2.1"
+    component-inherit "0.0.3"
+    debug "~3.1.0"
+    engine.io-parser "~2.1.1"
+    has-cors "1.1.0"
+    indexof "0.0.1"
+    parseqs "0.0.5"
+    parseuri "0.0.5"
+    ws "~3.3.1"
+    xmlhttprequest-ssl "~1.5.4"
+    yeast "0.1.2"
+
+engine.io-parser@~2.1.0, engine.io-parser@~2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.1.2.tgz#4c0f4cff79aaeecbbdcfdea66a823c6085409196"
+  dependencies:
+    after "0.8.2"
+    arraybuffer.slice "~0.0.7"
+    base64-arraybuffer "0.1.5"
+    blob "0.0.4"
+    has-binary2 "~1.0.2"
+
+engine.io@~3.1.0:
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.1.5.tgz#0e7ef9d690eb0b35597f1d4ad02a26ca2dba3845"
+  dependencies:
+    accepts "~1.3.4"
+    base64id "1.0.0"
+    cookie "0.3.1"
+    debug "~3.1.0"
+    engine.io-parser "~2.1.0"
+    ws "~3.3.1"
+  optionalDependencies:
+    uws "~9.14.0"
+
+enhanced-resolve@^3.4.0:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz#0421e339fd71419b3da13d129b3979040230476e"
+  dependencies:
+    graceful-fs "^4.1.2"
+    memory-fs "^0.4.0"
+    object-assign "^4.0.1"
+    tapable "^0.2.7"
+
+ent@~2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/ent/-/ent-2.2.0.tgz#e964219325a21d05f44466a2f686ed6ce5f5dd1d"
+
+entities@^1.1.1, entities@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.1.tgz#6e5c2d0a5621b5dadaecef80b90edfb5cd7772f0"
+
+errno@^0.1.3:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
+  dependencies:
+    prr "~1.0.1"
+
+error-ex@^1.2.0, error-ex@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
+  dependencies:
+    is-arrayish "^0.2.1"
+
+es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
+  version "0.10.39"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.39.tgz#fca21b67559277ca4ac1a1ed7048b107b6f76d87"
+  dependencies:
+    es6-iterator "~2.0.3"
+    es6-symbol "~3.1.1"
+
+es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
+  dependencies:
+    d "1"
+    es5-ext "^0.10.35"
+    es6-symbol "^3.1.1"
+
+es6-map@^0.1.3:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-set "~0.1.5"
+    es6-symbol "~3.1.1"
+    event-emitter "~0.3.5"
+
+es6-promise@^4.0.3, es6-promise@^4.1.0:
+  version "4.2.4"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
+
+es6-set@~0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+    es6-iterator "~2.0.1"
+    es6-symbol "3.1.1"
+    event-emitter "~0.3.5"
+
+es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
+es6-weak-map@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
+  dependencies:
+    d "1"
+    es5-ext "^0.10.14"
+    es6-iterator "^2.0.1"
+    es6-symbol "^3.1.1"
+
+escape-html@~1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
+
+escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
+
+escodegen@1.8.x:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
+  dependencies:
+    esprima "^2.7.1"
+    estraverse "^1.9.1"
+    esutils "^2.0.2"
+    optionator "^0.8.1"
+  optionalDependencies:
+    source-map "~0.2.0"
+
+escodegen@1.x.x, escodegen@^1.8.1, escodegen@^1.9.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.9.1.tgz#dbae17ef96c8e4bedb1356f4504fa4cc2f7cb7e2"
+  dependencies:
+    esprima "^3.1.3"
+    estraverse "^4.2.0"
+    esutils "^2.0.2"
+    optionator "^0.8.1"
+  optionalDependencies:
+    source-map "~0.6.1"
+
+escope@^3.6.0:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
+  dependencies:
+    es6-map "^0.1.3"
+    es6-weak-map "^2.0.1"
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
+eslint-loader@^1.7.1:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/eslint-loader/-/eslint-loader-1.9.0.tgz#7e1be9feddca328d3dcfaef1ad49d5beffe83a13"
+  dependencies:
+    loader-fs-cache "^1.0.0"
+    loader-utils "^1.0.2"
+    object-assign "^4.0.1"
+    object-hash "^1.1.4"
+    rimraf "^2.6.1"
+
+eslint-plugin-flowtype@^2.34.0:
+  version "2.46.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.46.1.tgz#c4f81d580cd89c82bc3a85a1ccf4ae3a915143a4"
+  dependencies:
+    lodash "^4.15.0"
+
+eslint-plugin-html@^4.0.1:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-html/-/eslint-plugin-html-4.0.2.tgz#0e56149e42c2ffc3f0df6261a8bb96b1a9f2280d"
+  dependencies:
+    htmlparser2 "^3.8.2"
+
+eslint-plugin-jasmine@^2.8.4:
+  version "2.9.3"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-jasmine/-/eslint-plugin-jasmine-2.9.3.tgz#05bf3ab827d791691ceee8c21959b9c0d56a6b0c"
+
+eslint-plugin-vue-libs@^2.0.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-vue-libs/-/eslint-plugin-vue-libs-2.1.0.tgz#e7faf4ae11dad58553f63f907d6642e2d816dcef"
+  dependencies:
+    eslint-plugin-html "^4.0.1"
+
+eslint-scope@^3.7.1, eslint-scope@~3.7.1:
+  version "3.7.1"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
+  dependencies:
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
+eslint-visitor-keys@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
+
+eslint@^4.13.1:
+  version "4.18.2"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.18.2.tgz#0f81267ad1012e7d2051e186a9004cc2267b8d45"
+  dependencies:
+    ajv "^5.3.0"
+    babel-code-frame "^6.22.0"
+    chalk "^2.1.0"
+    concat-stream "^1.6.0"
+    cross-spawn "^5.1.0"
+    debug "^3.1.0"
+    doctrine "^2.1.0"
+    eslint-scope "^3.7.1"
+    eslint-visitor-keys "^1.0.0"
+    espree "^3.5.2"
+    esquery "^1.0.0"
+    esutils "^2.0.2"
+    file-entry-cache "^2.0.0"
+    functional-red-black-tree "^1.0.1"
+    glob "^7.1.2"
+    globals "^11.0.1"
+    ignore "^3.3.3"
+    imurmurhash "^0.1.4"
+    inquirer "^3.0.6"
+    is-resolvable "^1.0.0"
+    js-yaml "^3.9.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
+    levn "^0.3.0"
+    lodash "^4.17.4"
+    minimatch "^3.0.2"
+    mkdirp "^0.5.1"
+    natural-compare "^1.4.0"
+    optionator "^0.8.2"
+    path-is-inside "^1.0.2"
+    pluralize "^7.0.0"
+    progress "^2.0.0"
+    require-uncached "^1.0.3"
+    semver "^5.3.0"
+    strip-ansi "^4.0.0"
+    strip-json-comments "~2.0.1"
+    table "4.0.2"
+    text-table "~0.2.0"
+
+espree@^3.5.2:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
+  dependencies:
+    acorn "^5.5.0"
+    acorn-jsx "^3.0.0"
+
+esprima@2.7.x, esprima@^2.7.1:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+
+esprima@3.x.x, esprima@^3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
+esprima@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
+
+esquery@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
+  dependencies:
+    estraverse "^4.0.0"
+
+esrecurse@^4.1.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
+  dependencies:
+    estraverse "^4.1.0"
+
+estraverse@^1.9.1:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
+
+estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1, estraverse@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
+
+estree-walker@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.2.1.tgz#bdafe8095383d8414d5dc2ecf4c9173b6db9412e"
+
+estree-walker@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.3.1.tgz#e6b1a51cf7292524e7237c312e5fe6660c1ce1aa"
+
+estree-walker@^0.5.0:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.5.1.tgz#64fc375053abc6f57d73e9bd2f004644ad3c5854"
+
+esutils@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
+
+event-emitter@~0.3.5:
+  version "0.3.5"
+  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
+  dependencies:
+    d "1"
+    es5-ext "~0.10.14"
+
+eventemitter3@1.x.x:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-1.2.0.tgz#1c86991d816ad1e504750e73874224ecf3bec508"
+
+events@^1.0.0, events@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
+
+evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/evp_bytestokey/-/evp_bytestokey-1.0.3.tgz#7fcbdb198dc71959432efe13842684e0525acb02"
+  dependencies:
+    md5.js "^1.3.4"
+    safe-buffer "^5.1.1"
+
+execa@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
+execa@^0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.8.0.tgz#d8d76bbc1b55217ed190fd6dd49d3c774ecfc8da"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
+execa@^0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.9.0.tgz#adb7ce62cf985071f60580deb4a88b9e34712d01"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
+exit-hook@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
+
+exit@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
+
+expand-braces@^0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/expand-braces/-/expand-braces-0.1.2.tgz#488b1d1d2451cb3d3a6b192cfc030f44c5855fea"
+  dependencies:
+    array-slice "^0.2.3"
+    array-unique "^0.2.1"
+    braces "^0.1.2"
+
+expand-brackets@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
+  dependencies:
+    is-posix-bracket "^0.1.0"
+
+expand-brackets@^2.1.4:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
+  dependencies:
+    debug "^2.3.3"
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    posix-character-classes "^0.1.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+expand-range@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-0.1.1.tgz#4cb8eda0993ca56fa4f41fc42f3cbb4ccadff044"
+  dependencies:
+    is-number "^0.1.1"
+    repeat-string "^0.2.2"
+
+expand-range@^1.8.1:
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
+  dependencies:
+    fill-range "^2.1.0"
+
+expand-tilde@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-1.2.2.tgz#0b81eba897e5a3d31d1c3d102f8f01441e559449"
+  dependencies:
+    os-homedir "^1.0.1"
+
+expect@^22.4.0:
+  version "22.4.0"
+  resolved "https://registry.yarnpkg.com/expect/-/expect-22.4.0.tgz#371edf1ae15b83b5bf5ec34b42f1584660a36c16"
+  dependencies:
+    ansi-styles "^3.2.0"
+    jest-diff "^22.4.0"
+    jest-get-type "^22.1.0"
+    jest-matcher-utils "^22.4.0"
+    jest-message-util "^22.4.0"
+    jest-regex-util "^22.1.0"
+
+extend-shallow@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
+  dependencies:
+    is-extendable "^0.1.0"
+
+extend-shallow@^3.0.0, extend-shallow@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
+  dependencies:
+    assign-symbols "^1.0.0"
+    is-extendable "^1.0.1"
+
+extend@3, extend@^3.0.0, extend@~3.0.0, extend@~3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
+
+external-editor@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-1.1.1.tgz#12d7b0db850f7ff7e7081baf4005700060c4600b"
+  dependencies:
+    extend "^3.0.0"
+    spawn-sync "^1.0.15"
+    tmp "^0.0.29"
+
+external-editor@^2.0.4:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.1.0.tgz#3d026a21b7f95b5726387d4200ac160d372c3b48"
+  dependencies:
+    chardet "^0.4.0"
+    iconv-lite "^0.4.17"
+    tmp "^0.0.33"
+
+extglob@^0.3.1:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
+  dependencies:
+    is-extglob "^1.0.0"
+
+extglob@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
+  dependencies:
+    array-unique "^0.3.2"
+    define-property "^1.0.0"
+    expand-brackets "^2.1.4"
+    extend-shallow "^2.0.1"
+    fragment-cache "^0.2.1"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+extract-zip@^1.6.5:
+  version "1.6.6"
+  resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.6.tgz#1290ede8d20d0872b429fd3f351ca128ec5ef85c"
+  dependencies:
+    concat-stream "1.6.0"
+    debug "2.6.9"
+    mkdirp "0.5.0"
+    yauzl "2.4.1"
+
+extsprintf@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
+
+extsprintf@^1.2.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
+
+fast-deep-equal@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
+
+fast-json-stable-stringify@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
+
+fast-levenshtein@~2.0.4:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
+
+fd-slicer@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.0.1.tgz#8b5bcbd9ec327c5041bf9ab023fd6750f1177e65"
+  dependencies:
+    pend "~1.2.0"
+
+figures@^1.3.5, figures@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+  dependencies:
+    escape-string-regexp "^1.0.5"
+    object-assign "^4.1.0"
+
+figures@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
+  dependencies:
+    escape-string-regexp "^1.0.5"
+
+file-entry-cache@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-2.0.0.tgz#c392990c3e684783d838b8c84a45d8a048458361"
+  dependencies:
+    flat-cache "^1.2.1"
+    object-assign "^4.0.1"
+
+file-loader@^1.1.5:
+  version "1.1.11"
+  resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.11.tgz#6fe886449b0f2a936e43cabaac0cdbfb369506f8"
+  dependencies:
+    loader-utils "^1.0.2"
+    schema-utils "^0.4.5"
+
+file-uri-to-path@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
+
+filename-regex@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
+
+fill-range@^2.1.0:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.3.tgz#50b77dfd7e469bc7492470963699fe7a8485a723"
+  dependencies:
+    is-number "^2.1.0"
+    isobject "^2.0.0"
+    randomatic "^1.1.3"
+    repeat-element "^1.1.2"
+    repeat-string "^1.5.2"
+
+fill-range@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-4.0.0.tgz#d544811d428f98eb06a63dc402d2403c328c38f7"
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-number "^3.0.0"
+    repeat-string "^1.6.1"
+    to-regex-range "^2.1.0"
+
+finalhandler@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.0.tgz#ce0b6855b45853e791b2fcc680046d88253dd7f5"
+  dependencies:
+    debug "2.6.9"
+    encodeurl "~1.0.1"
+    escape-html "~1.0.3"
+    on-finished "~2.3.0"
+    parseurl "~1.3.2"
+    statuses "~1.3.1"
+    unpipe "~1.0.0"
+
+find-cache-dir@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-0.1.1.tgz#c8defae57c8a52a8a784f9e31c57c742e993a0b9"
+  dependencies:
+    commondir "^1.0.1"
+    mkdirp "^0.5.1"
+    pkg-dir "^1.0.0"
+
+find-cache-dir@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-1.0.0.tgz#9288e3e9e3cc3748717d39eade17cf71fc30ee6f"
+  dependencies:
+    commondir "^1.0.1"
+    make-dir "^1.0.0"
+    pkg-dir "^2.0.0"
+
+find-node-modules@1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/find-node-modules/-/find-node-modules-1.0.4.tgz#b6deb3cccb699c87037677bcede2c5f5862b2550"
+  dependencies:
+    findup-sync "0.4.2"
+    merge "^1.2.0"
+
+find-parent-dir@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
+
+find-root@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.0.0.tgz#962ff211aab25c6520feeeb8d6287f8f6e95807a"
+
+find-up@^1.0.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
+  dependencies:
+    path-exists "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+find-up@^2.0.0, find-up@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
+  dependencies:
+    locate-path "^2.0.0"
+
+findup-sync@0.4.2:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/findup-sync/-/findup-sync-0.4.2.tgz#a8117d0f73124f5a4546839579fe52d7129fb5e5"
+  dependencies:
+    detect-file "^0.1.0"
+    is-glob "^2.0.1"
+    micromatch "^2.3.7"
+    resolve-dir "^0.1.0"
+
+flat-cache@^1.2.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
+  dependencies:
+    circular-json "^0.3.1"
+    del "^2.0.2"
+    graceful-fs "^4.1.2"
+    write "^0.2.1"
+
+flow-bin@^0.61.0:
+  version "0.61.0"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.61.0.tgz#d0473a8c35dbbf4de573823f4932124397d32d35"
+
+flow-remove-types-no-whitespace@^1.0.3:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/flow-remove-types-no-whitespace/-/flow-remove-types-no-whitespace-1.0.5.tgz#3d297985a0bed5197b8fb0cbe89ec163f8dea9eb"
+  dependencies:
+    babylon "^6.8.4"
+    magic-string "^0.16.0"
+
+follow-redirects@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.0.0.tgz#8e34298cbd2e176f254effec75a1c78cc849fd37"
+  dependencies:
+    debug "^2.2.0"
+
+for-in@^1.0.1, for-in@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
+
+for-own@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.5.tgz#5265c681a4f294dabbf17c9509b6763aa84510ce"
+  dependencies:
+    for-in "^1.0.1"
+
+forever-agent@~0.5.0:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.5.2.tgz#6d0e09c4921f94a27f63d3b49c5feff1ea4c5130"
+
+forever-agent@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
+
+form-data@~0.1.0:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-0.1.4.tgz#91abd788aba9702b1aabfa8bc01031a2ac9e3b12"
+  dependencies:
+    async "~0.9.0"
+    combined-stream "~0.0.4"
+    mime "~1.2.11"
+
+form-data@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.0.0.tgz#6f0aebadcc5da16c13e1ecc11137d85f9b883b25"
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.5"
+    mime-types "^2.1.11"
+
+form-data@~2.1.1:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.1.4.tgz#33c183acf193276ecaa98143a69e94bfee1750d1"
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.5"
+    mime-types "^2.1.12"
+
+form-data@~2.3.1:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.2.tgz#4970498be604c20c005d4f5c23aecd21d6b49099"
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "1.0.6"
+    mime-types "^2.1.12"
+
+fragment-cache@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
+  dependencies:
+    map-cache "^0.2.2"
+
+fs-access@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/fs-access/-/fs-access-1.0.1.tgz#d6a87f262271cefebec30c553407fb995da8777a"
+  dependencies:
+    null-check "^1.0.0"
+
+fs-exists-sync@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
+
+fs-extra@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-1.0.0.tgz#cd3ce5f7e7cb6145883fcae3191e9877f8587950"
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^2.1.0"
+    klaw "^1.0.0"
+
+fs.realpath@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
+
+fsevents@^1.0.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.3.tgz#11f82318f5fe7bb2cd22965a108e9306208216d8"
+  dependencies:
+    nan "^2.3.0"
+    node-pre-gyp "^0.6.39"
+
+fstream-ignore@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
+  dependencies:
+    fstream "^1.0.0"
+    inherits "2"
+    minimatch "^3.0.0"
+
+fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
+  dependencies:
+    graceful-fs "^4.1.2"
+    inherits "~2.0.0"
+    mkdirp ">=0.5 0"
+    rimraf "2"
+
+ftp@~0.3.10:
+  version "0.3.10"
+  resolved "https://registry.yarnpkg.com/ftp/-/ftp-0.3.10.tgz#9197d861ad8142f3e63d5a83bfe4c59f7330885d"
+  dependencies:
+    readable-stream "1.1.x"
+    xregexp "2.0.0"
+
+function-bind@^1.0.2:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
+
+functional-red-black-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
+
+gauge@~2.7.3:
+  version "2.7.4"
+  resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
+  dependencies:
+    aproba "^1.0.3"
+    console-control-strings "^1.0.0"
+    has-unicode "^2.0.0"
+    object-assign "^4.1.0"
+    signal-exit "^3.0.0"
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wide-align "^1.1.0"
+
+generate-function@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
+
+generate-object-property@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
+  dependencies:
+    is-property "^1.0.0"
+
+get-caller-file@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
+
+get-own-enumerable-property-symbols@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-2.0.1.tgz#5c4ad87f2834c4b9b4e84549dc1e0650fb38c24b"
+
+get-pkg-repo@^1.0.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/get-pkg-repo/-/get-pkg-repo-1.4.0.tgz#c73b489c06d80cc5536c2c853f9e05232056972d"
+  dependencies:
+    hosted-git-info "^2.1.4"
+    meow "^3.3.0"
+    normalize-package-data "^2.3.0"
+    parse-github-repo-url "^1.3.0"
+    through2 "^2.0.0"
+
+get-stdin@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-4.0.1.tgz#b968c6b0a04384324902e8bf1a5df32579a450fe"
+
+get-stream@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
+
+get-uri@2:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/get-uri/-/get-uri-2.0.1.tgz#dbdcacacd8c608a38316869368117697a1631c59"
+  dependencies:
+    data-uri-to-buffer "1"
+    debug "2"
+    extend "3"
+    file-uri-to-path "1"
+    ftp "~0.3.10"
+    readable-stream "2"
+
+get-value@^2.0.3, get-value@^2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
+
+getpass@^0.1.1:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/getpass/-/getpass-0.1.7.tgz#5eff8e3e684d569ae4cb2b1282604e8ba62149fa"
+  dependencies:
+    assert-plus "^1.0.0"
+
+git-raw-commits@^1.3.4:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/git-raw-commits/-/git-raw-commits-1.3.4.tgz#442c3df5985b4f5689e9e43597f5194736aac001"
+  dependencies:
+    dargs "^4.0.1"
+    lodash.template "^4.0.2"
+    meow "^4.0.0"
+    split2 "^2.0.0"
+    through2 "^2.0.0"
+
+git-remote-origin-url@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/git-remote-origin-url/-/git-remote-origin-url-2.0.0.tgz#5282659dae2107145a11126112ad3216ec5fa65f"
+  dependencies:
+    gitconfiglocal "^1.0.0"
+    pify "^2.3.0"
+
+git-semver-tags@^1.3.4:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/git-semver-tags/-/git-semver-tags-1.3.4.tgz#2ceb2a355c6d7514c123c35e297067d08caf3a92"
+  dependencies:
+    meow "^4.0.0"
+    semver "^5.5.0"
+
+gitconfiglocal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/gitconfiglocal/-/gitconfiglocal-1.0.0.tgz#41d045f3851a5ea88f03f24ca1c6178114464b9b"
+  dependencies:
+    ini "^1.3.2"
+
+glob-base@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
+  dependencies:
+    glob-parent "^2.0.0"
+    is-glob "^2.0.0"
+
+glob-parent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-2.0.0.tgz#81383d72db054fcccf5336daa902f182f6edbb28"
+  dependencies:
+    is-glob "^2.0.0"
+
+glob-parent@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-3.1.0.tgz#9e6af6299d8d3bd2bd40430832bd113df906c5ae"
+  dependencies:
+    is-glob "^3.1.0"
+    path-dirname "^1.0.0"
+
+glob@7.0.5:
+  version "7.0.5"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.0.5.tgz#b4202a69099bbb4d292a7c1b95b6682b67ebdc95"
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.2"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+glob@7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.2"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+glob@^5.0.15:
+  version "5.0.15"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
+  dependencies:
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "2 || 3"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.0, glob@^7.1.1, glob@^7.1.2:
+  version "7.1.2"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+global-modules@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-0.2.3.tgz#ea5a3bed42c6d6ce995a4f8a1269b5dae223828d"
+  dependencies:
+    global-prefix "^0.1.4"
+    is-windows "^0.2.0"
+
+global-prefix@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/global-prefix/-/global-prefix-0.1.5.tgz#8d3bc6b8da3ca8112a160d8d496ff0462bfef78f"
+  dependencies:
+    homedir-polyfill "^1.0.0"
+    ini "^1.3.4"
+    is-windows "^0.2.0"
+    which "^1.2.12"
+
+globals@^11.0.1, globals@^11.1.0:
+  version "11.3.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.3.0.tgz#e04fdb7b9796d8adac9c8f64c14837b2313378b0"
+
+globals@^9.18.0:
+  version "9.18.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
+
+globby@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
+  dependencies:
+    array-union "^1.0.1"
+    arrify "^1.0.0"
+    glob "^7.0.3"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+globby@^6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
+  dependencies:
+    array-union "^1.0.1"
+    glob "^7.0.3"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
+  version "4.1.11"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
+
+"graceful-readlink@>= 1.0.0":
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
+
+growl@1.9.2:
+  version "1.9.2"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.9.2.tgz#0ea7743715db8d8de2c5ede1775e1b45ac85c02f"
+
+handlebars@^4.0.1, handlebars@^4.0.2:
+  version "4.0.11"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
+  dependencies:
+    async "^1.4.0"
+    optimist "^0.6.1"
+    source-map "^0.4.4"
+  optionalDependencies:
+    uglify-js "^2.6"
+
+har-schema@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
+
+har-schema@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
+
+har-validator@~2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-2.0.6.tgz#cdcbc08188265ad119b6a5a7c8ab70eecfb5d27d"
+  dependencies:
+    chalk "^1.1.1"
+    commander "^2.9.0"
+    is-my-json-valid "^2.12.4"
+    pinkie-promise "^2.0.0"
+
+har-validator@~4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
+  dependencies:
+    ajv "^4.9.1"
+    har-schema "^1.0.5"
+
+har-validator@~5.0.3:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.0.3.tgz#ba402c266194f15956ef15e0fcf242993f6a7dfd"
+  dependencies:
+    ajv "^5.1.0"
+    har-schema "^2.0.0"
+
+has-ansi@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-2.0.0.tgz#34f5049ce1ecdf2b0649af3ef24e45ed35416d91"
+  dependencies:
+    ansi-regex "^2.0.0"
+
+has-binary2@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/has-binary2/-/has-binary2-1.0.2.tgz#e83dba49f0b9be4d026d27365350d9f03f54be98"
+  dependencies:
+    isarray "2.0.1"
+
+has-cors@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
+
+has-flag@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
+
+has-flag@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
+
+has-flag@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+
+has-unicode@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
+
+has-value@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/has-value/-/has-value-0.3.1.tgz#7b1f58bada62ca827ec0a2078025654845995e1f"
+  dependencies:
+    get-value "^2.0.3"
+    has-values "^0.1.4"
+    isobject "^2.0.0"
+
+has-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-value/-/has-value-1.0.0.tgz#18b281da585b1c5c51def24c930ed29a0be6b177"
+  dependencies:
+    get-value "^2.0.6"
+    has-values "^1.0.0"
+    isobject "^3.0.0"
+
+has-values@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/has-values/-/has-values-0.1.4.tgz#6d61de95d91dfca9b9a02089ad384bff8f62b771"
+
+has-values@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-values/-/has-values-1.0.0.tgz#95b0b63fec2146619a6fe57fe75628d5a39efe4f"
+  dependencies:
+    is-number "^3.0.0"
+    kind-of "^4.0.0"
+
+has@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
+  dependencies:
+    function-bind "^1.0.2"
+
+hash-base@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-2.0.2.tgz#66ea1d856db4e8a5470cadf6fce23ae5244ef2e1"
+  dependencies:
+    inherits "^2.0.1"
+
+hash-base@^3.0.0:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-3.0.4.tgz#5fc8686847ecd73499403319a6b0a3f3f6ae4918"
+  dependencies:
+    inherits "^2.0.1"
+    safe-buffer "^5.0.1"
+
+hash-sum@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/hash-sum/-/hash-sum-1.0.2.tgz#33b40777754c6432573c120cc3808bbd10d47f04"
+
+hash.js@^1.0.0, hash.js@^1.0.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.3.tgz#340dedbe6290187151c1ea1d777a3448935df846"
+  dependencies:
+    inherits "^2.0.3"
+    minimalistic-assert "^1.0.0"
+
+hasha@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/hasha/-/hasha-2.2.0.tgz#78d7cbfc1e6d66303fe79837365984517b2f6ee1"
+  dependencies:
+    is-stream "^1.0.1"
+    pinkie-promise "^2.0.0"
+
+hawk@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/hawk/-/hawk-1.1.1.tgz#87cd491f9b46e4e2aeaca335416766885d2d1ed9"
+  dependencies:
+    boom "0.4.x"
+    cryptiles "0.2.x"
+    hoek "0.9.x"
+    sntp "0.2.x"
+
+hawk@3.1.3, hawk@~3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
+  dependencies:
+    boom "2.x.x"
+    cryptiles "2.x.x"
+    hoek "2.x.x"
+    sntp "1.x.x"
+
+hawk@~6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/hawk/-/hawk-6.0.2.tgz#af4d914eb065f9b5ce4d9d11c1cb2126eecc3038"
+  dependencies:
+    boom "4.x.x"
+    cryptiles "3.x.x"
+    hoek "4.x.x"
+    sntp "2.x.x"
+
+he@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
+
+hipchat-notifier@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/hipchat-notifier/-/hipchat-notifier-1.1.0.tgz#b6d249755437c191082367799d3ba9a0f23b231e"
+  dependencies:
+    lodash "^4.0.0"
+    request "^2.0.0"
+
+hmac-drbg@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
+  dependencies:
+    hash.js "^1.0.3"
+    minimalistic-assert "^1.0.0"
+    minimalistic-crypto-utils "^1.0.1"
+
+hoek@0.9.x:
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/hoek/-/hoek-0.9.1.tgz#3d322462badf07716ea7eb85baf88079cddce505"
+
+hoek@2.x.x:
+  version "2.16.3"
+  resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
+
+hoek@4.x.x:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/hoek/-/hoek-4.2.1.tgz#9634502aa12c445dd5a7c5734b572bb8738aacbb"
+
+home-or-tmp@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-2.0.0.tgz#e36c3f2d2cae7d746a857e38d18d5f32a7882db8"
+  dependencies:
+    os-homedir "^1.0.0"
+    os-tmpdir "^1.0.1"
+
+homedir-polyfill@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/homedir-polyfill/-/homedir-polyfill-1.0.1.tgz#4c2bbc8a758998feebf5ed68580f76d46768b4bc"
+  dependencies:
+    parse-passwd "^1.0.0"
+
+hosted-git-info@^2.1.4:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.5.0.tgz#6d60e34b3abbc8313062c3b798ef8d901a07af3c"
+
+html-encoding-sniffer@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/html-encoding-sniffer/-/html-encoding-sniffer-1.0.2.tgz#e70d84b94da53aa375e11fe3a351be6642ca46f8"
+  dependencies:
+    whatwg-encoding "^1.0.1"
+
+htmlescape@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/htmlescape/-/htmlescape-1.1.1.tgz#3a03edc2214bca3b66424a3e7959349509cb0351"
+
+htmlparser2@^3.8.2:
+  version "3.9.2"
+  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.9.2.tgz#1bdf87acca0f3f9e53fa4fcceb0f4b4cbb00b338"
+  dependencies:
+    domelementtype "^1.3.0"
+    domhandler "^2.3.0"
+    domutils "^1.5.1"
+    entities "^1.1.1"
+    inherits "^2.0.1"
+    readable-stream "^2.0.2"
+
+http-errors@1.6.2, http-errors@~1.6.2:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.2.tgz#0a002cc85707192a7e7946ceedc11155f60ec736"
+  dependencies:
+    depd "1.1.1"
+    inherits "2.0.3"
+    setprototypeof "1.0.3"
+    statuses ">= 1.3.1 < 2"
+
+http-proxy-agent@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/http-proxy-agent/-/http-proxy-agent-1.0.0.tgz#cc1ce38e453bf984a0f7702d2dd59c73d081284a"
+  dependencies:
+    agent-base "2"
+    debug "2"
+    extend "3"
+
+http-proxy@^1.13.0, http-proxy@^1.8.1:
+  version "1.16.2"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.16.2.tgz#06dff292952bf64dbe8471fa9df73066d4f37742"
+  dependencies:
+    eventemitter3 "1.x.x"
+    requires-port "1.x.x"
+
+http-server@^0.11.1:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/http-server/-/http-server-0.11.1.tgz#2302a56a6ffef7f9abea0147d838a5e9b6b6a79b"
+  dependencies:
+    colors "1.0.3"
+    corser "~2.0.0"
+    ecstatic "^3.0.0"
+    http-proxy "^1.8.1"
+    opener "~1.4.0"
+    optimist "0.6.x"
+    portfinder "^1.0.13"
+    union "~0.4.3"
+
+http-signature@~0.10.0:
+  version "0.10.1"
+  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-0.10.1.tgz#4fbdac132559aa8323121e540779c0a012b27e66"
+  dependencies:
+    asn1 "0.1.11"
+    assert-plus "^0.1.5"
+    ctype "0.5.3"
+
+http-signature@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
+  dependencies:
+    assert-plus "^0.2.0"
+    jsprim "^1.2.2"
+    sshpk "^1.7.0"
+
+http-signature@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.2.0.tgz#9aecd925114772f3d95b65a60abb8f7c18fbace1"
+  dependencies:
+    assert-plus "^1.0.0"
+    jsprim "^1.2.2"
+    sshpk "^1.7.0"
+
+httpntlm@1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/httpntlm/-/httpntlm-1.6.1.tgz#ad01527143a2e8773cfae6a96f58656bb52a34b2"
+  dependencies:
+    httpreq ">=0.4.22"
+    underscore "~1.7.0"
+
+httpreq@>=0.4.22:
+  version "0.4.24"
+  resolved "https://registry.yarnpkg.com/httpreq/-/httpreq-0.4.24.tgz#4335ffd82cd969668a39465c929ac61d6393627f"
+
+https-browserify@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
+
+https-proxy-agent@1, https-proxy-agent@^1.0.0, https-proxy-agent@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-1.0.0.tgz#35f7da6c48ce4ddbfa264891ac593ee5ff8671e6"
+  dependencies:
+    agent-base "2"
+    debug "2"
+    extend "3"
+
+iconv-lite@0.4.15:
+  version "0.4.15"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.15.tgz#fe265a218ac6a57cfe854927e9d04c19825eddeb"
+
+iconv-lite@0.4.19, iconv-lite@^0.4.17:
+  version "0.4.19"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
+
+ieee754@^1.1.4:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.8.tgz#be33d40ac10ef1926701f6f08a2d86fbfd1ad3e4"
+
+ignore@^3.3.3:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
+
+imurmurhash@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
+
+indent-string@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-2.1.0.tgz#8e2d48348742121b4a8218b7a137e9a52049dc80"
+  dependencies:
+    repeating "^2.0.0"
+
+indent-string@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-3.2.0.tgz#4a5fd6d27cc332f37e5419a504dbb837105c9289"
+
+indexof@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
+
+inflection@~1.10.0:
+  version "1.10.0"
+  resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.10.0.tgz#5bffcb1197ad3e81050f8e17e21668087ee9eb2f"
+
+inflection@~1.3.0:
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.3.8.tgz#cbd160da9f75b14c3cc63578d4f396784bf3014e"
+
+inflight@^1.0.4:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
+  dependencies:
+    once "^1.3.0"
+    wrappy "1"
+
+inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+
+inherits@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
+
+ini@^1.3.2, ini@^1.3.4, ini@~1.3.0:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
+
+inline-source-map@~0.6.0:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/inline-source-map/-/inline-source-map-0.6.2.tgz#f9393471c18a79d1724f863fa38b586370ade2a5"
+  dependencies:
+    source-map "~0.5.3"
+
+inquirer@1.2.3:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-1.2.3.tgz#4dec6f32f37ef7bb0b2ed3f1d1a5c3f545074918"
+  dependencies:
+    ansi-escapes "^1.1.0"
+    chalk "^1.0.0"
+    cli-cursor "^1.0.1"
+    cli-width "^2.0.0"
+    external-editor "^1.1.0"
+    figures "^1.3.5"
+    lodash "^4.3.0"
+    mute-stream "0.0.6"
+    pinkie-promise "^2.0.0"
+    run-async "^2.2.0"
+    rx "^4.1.0"
+    string-width "^1.0.1"
+    strip-ansi "^3.0.0"
+    through "^2.3.6"
+
+inquirer@^3.0.6:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
+  dependencies:
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.0"
+    cli-cursor "^2.1.0"
+    cli-width "^2.0.0"
+    external-editor "^2.0.4"
+    figures "^2.0.0"
+    lodash "^4.3.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx-lite "^4.0.8"
+    rx-lite-aggregates "^4.0.8"
+    string-width "^2.1.0"
+    strip-ansi "^4.0.0"
+    through "^2.3.6"
+
+insert-module-globals@^7.0.0:
+  version "7.0.2"
+  resolved "https://registry.yarnpkg.com/insert-module-globals/-/insert-module-globals-7.0.2.tgz#012c56baa7d3307a8b417d4ec5270cf9741c18f4"
+  dependencies:
+    JSONStream "^1.0.3"
+    combine-source-map "~0.7.1"
+    concat-stream "~1.5.1"
+    is-buffer "^1.1.0"
+    lexical-scope "^1.2.0"
+    process "~0.11.0"
+    through2 "^2.0.0"
+    xtend "^4.0.0"
+
+interpret@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
+
+invariant@^2.2.0, invariant@^2.2.2:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.3.tgz#1a827dfde7dcbd7c323f0ca826be8fa7c5e9d688"
+  dependencies:
+    loose-envify "^1.0.0"
+
+invert-kv@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+
+ip@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/ip/-/ip-1.0.1.tgz#c7e356cdea225ae71b36d70f2e71a92ba4e42590"
+
+ip@^1.1.2, ip@^1.1.4:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"
+
+is-accessor-descriptor@^0.1.6:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-accessor-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz#169c2f6d3df1f992618072365c9b0ea1f6878656"
+  dependencies:
+    kind-of "^6.0.0"
+
+is-arrayish@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
+
+is-binary-path@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-1.0.1.tgz#75f16642b480f187a711c814161fd3a4a7655898"
+  dependencies:
+    binary-extensions "^1.0.0"
+
+is-buffer@^1.1.0, is-buffer@^1.1.5:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+
+is-builtin-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
+  dependencies:
+    builtin-modules "^1.0.0"
+
+is-ci@^1.0.10:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.1.0.tgz#247e4162e7860cebbdaf30b774d6b0ac7dcfe7a5"
+  dependencies:
+    ci-info "^1.0.0"
+
+is-data-descriptor@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-data-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz#d84876321d0e7add03990406abbbbd36ba9268c7"
+  dependencies:
+    kind-of "^6.0.0"
+
+is-descriptor@^0.1.0:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-0.1.6.tgz#366d8240dde487ca51823b1ab9f07a10a78251ca"
+  dependencies:
+    is-accessor-descriptor "^0.1.6"
+    is-data-descriptor "^0.1.4"
+    kind-of "^5.0.0"
+
+is-descriptor@^1.0.0, is-descriptor@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-1.0.2.tgz#3b159746a66604b04f8c81524ba365c5f14d86ec"
+  dependencies:
+    is-accessor-descriptor "^1.0.0"
+    is-data-descriptor "^1.0.0"
+    kind-of "^6.0.2"
+
+is-directory@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
+
+is-dotfile@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.3.tgz#a6a2f32ffd2dfb04f5ca25ecd0f6b83cf798a1e1"
+
+is-equal-shallow@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/is-equal-shallow/-/is-equal-shallow-0.1.3.tgz#2238098fc221de0bcfa5d9eac4c45d638aa1c534"
+  dependencies:
+    is-primitive "^2.0.0"
+
+is-extendable@^0.1.0, is-extendable@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
+
+is-extendable@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-1.0.1.tgz#a7470f9e426733d81bd81e1155264e3a3507cab4"
+  dependencies:
+    is-plain-object "^2.0.4"
+
+is-extglob@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
+
+is-extglob@^2.1.0, is-extglob@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
+
+is-finite@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
+
+is-generator-fn@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-1.0.0.tgz#969d49e1bb3329f6bb7f09089be26578b2ddd46a"
+
+is-glob@^2.0.0, is-glob@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
+  dependencies:
+    is-extglob "^1.0.0"
+
+is-glob@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-3.1.0.tgz#7ba5ae24217804ac70707b96922567486cc3e84a"
+  dependencies:
+    is-extglob "^2.1.0"
+
+is-glob@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.0.tgz#9521c76845cc2610a85203ddf080a958c2ffabc0"
+  dependencies:
+    is-extglob "^2.1.1"
+
+is-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-module/-/is-module-1.0.0.tgz#3258fb69f78c14d5b815d664336b4cffb6441591"
+
+is-my-ip-valid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-my-ip-valid/-/is-my-ip-valid-1.0.0.tgz#7b351b8e8edd4d3995d4d066680e664d94696824"
+
+is-my-json-valid@^2.12.4:
+  version "2.17.2"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.17.2.tgz#6b2103a288e94ef3de5cf15d29dd85fc4b78d65c"
+  dependencies:
+    generate-function "^2.0.0"
+    generate-object-property "^1.1.0"
+    is-my-ip-valid "^1.0.0"
+    jsonpointer "^4.0.0"
+    xtend "^4.0.0"
+
+is-number@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-0.1.1.tgz#69a7af116963d47206ec9bd9b48a14216f1e3806"
+
+is-number@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-number@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-number@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-4.0.0.tgz#0026e37f5454d73e356dfe6564699867c6a7f0ff"
+
+is-obj@^1.0.0, is-obj@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
+
+is-observable@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/is-observable/-/is-observable-0.2.0.tgz#b361311d83c6e5d726cabf5e250b0237106f5ae2"
+  dependencies:
+    symbol-observable "^0.2.2"
+
+is-odd@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
+  dependencies:
+    is-number "^4.0.0"
+
+is-path-cwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
+
+is-path-in-cwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-1.0.0.tgz#6477582b8214d602346094567003be8a9eac04dc"
+  dependencies:
+    is-path-inside "^1.0.0"
+
+is-path-inside@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-1.0.1.tgz#8ef5b7de50437a3fdca6b4e865ef7aa55cb48036"
+  dependencies:
+    path-is-inside "^1.0.1"
+
+is-plain-obj@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
+
+is-plain-object@^2.0.1, is-plain-object@^2.0.3, is-plain-object@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
+  dependencies:
+    isobject "^3.0.1"
+
+is-posix-bracket@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+
+is-primitive@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
+
+is-promise@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
+
+is-property@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
+
+is-regexp@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-regexp/-/is-regexp-1.0.0.tgz#fd2d883545c46bac5a633e7b9a09e87fa2cb5069"
+
+is-resolvable@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
+
+is-stream@^1.0.1, is-stream@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+
+is-subset@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-subset/-/is-subset-0.1.1.tgz#8a59117d932de1de00f245fcdd39ce43f1e939a6"
+
+is-text-path@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-text-path/-/is-text-path-1.0.1.tgz#4e1aa0fb51bfbcb3e92688001397202c1775b66e"
+  dependencies:
+    text-extensions "^1.0.0"
+
+is-typedarray@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
+
+is-utf8@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
+
+is-windows@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-0.2.0.tgz#de1aa6d63ea29dd248737b69f1ff8b8002d2108c"
+
+is-windows@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
+
+isarray@0.0.1, isarray@~0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
+
+isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
+
+isarray@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-2.0.1.tgz#a37d94ed9cda2d59865c9f76fe596ee1f338741e"
+
+isbinaryfile@^3.0.0:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-3.0.2.tgz#4a3e974ec0cba9004d3fc6cde7209ea69368a621"
+
+isexe@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
+
+isobject@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-2.1.0.tgz#f065561096a3f1da2ef46272f815c840d87e0c89"
+  dependencies:
+    isarray "1.0.0"
+
+isobject@^3.0.0, isobject@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
+
+isstream@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
+
+istanbul-lib-coverage@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.2.tgz#4113c8ff6b7a40a1ef7350b01016331f63afde14"
+
+istanbul-lib-instrument@^1.7.5:
+  version "1.9.2"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.9.2.tgz#84905bf47f7e0b401d6b840da7bad67086b4aab6"
+  dependencies:
+    babel-generator "^6.18.0"
+    babel-template "^6.16.0"
+    babel-traverse "^6.18.0"
+    babel-types "^6.18.0"
+    babylon "^6.18.0"
+    istanbul-lib-coverage "^1.1.2"
+    semver "^5.3.0"
+
+istanbul@^0.4.0:
+  version "0.4.5"
+  resolved "https://registry.yarnpkg.com/istanbul/-/istanbul-0.4.5.tgz#65c7d73d4c4da84d4f3ac310b918fb0b8033733b"
+  dependencies:
+    abbrev "1.0.x"
+    async "1.x"
+    escodegen "1.8.x"
+    esprima "2.7.x"
+    glob "^5.0.15"
+    handlebars "^4.0.1"
+    js-yaml "3.x"
+    mkdirp "0.5.x"
+    nopt "3.x"
+    once "1.x"
+    resolve "1.1.x"
+    supports-color "^3.1.0"
+    which "^1.1.1"
+    wordwrap "^1.0.0"
+
+jasmine-core@^2.99.0, jasmine-core@~2.99.0:
+  version "2.99.1"
+  resolved "https://registry.yarnpkg.com/jasmine-core/-/jasmine-core-2.99.1.tgz#e6400df1e6b56e130b61c4bcd093daa7f6e8ca15"
+
+jasmine@^2.99.0:
+  version "2.99.0"
+  resolved "https://registry.yarnpkg.com/jasmine/-/jasmine-2.99.0.tgz#8ca72d102e639b867c6489856e0e18a9c7aa42b7"
+  dependencies:
+    exit "^0.1.2"
+    glob "^7.0.6"
+    jasmine-core "~2.99.0"
+
+jest-config@^22.4.2:
+  version "22.4.2"
+  resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-22.4.2.tgz#580ba5819bf81a5e48f4fd470e8b81834f45c855"
+  dependencies:
+    chalk "^2.0.1"
+    glob "^7.1.1"
+    jest-environment-jsdom "^22.4.1"
+    jest-environment-node "^22.4.1"
+    jest-get-type "^22.1.0"
+    jest-jasmine2 "^22.4.2"
+    jest-regex-util "^22.1.0"
+    jest-resolve "^22.4.2"
+    jest-util "^22.4.1"
+    jest-validate "^22.4.2"
+    pretty-format "^22.4.0"
+
+jest-diff@^22.4.0:
+  version "22.4.0"
+  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-22.4.0.tgz#384c2b78519ca44ca126382df53f134289232525"
+  dependencies:
+    chalk "^2.0.1"
+    diff "^3.2.0"
+    jest-get-type "^22.1.0"
+    pretty-format "^22.4.0"
+
+jest-environment-jsdom@^22.4.1:
+  version "22.4.1"
+  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-22.4.1.tgz#754f408872441740100d3917e5ec40c74de6447f"
+  dependencies:
+    jest-mock "^22.2.0"
+    jest-util "^22.4.1"
+    jsdom "^11.5.1"
+
+jest-environment-node@^22.4.1:
+  version "22.4.1"
+  resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-22.4.1.tgz#418850eb654596b8d6e36c2021cbedbc23df8e16"
+  dependencies:
+    jest-mock "^22.2.0"
+    jest-util "^22.4.1"
+
+jest-get-type@^22.1.0:
+  version "22.1.0"
+  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.1.0.tgz#4e90af298ed6181edc85d2da500dbd2753e0d5a9"
+
+jest-jasmine2@^22.4.2:
+  version "22.4.2"
+  resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-22.4.2.tgz#dfd3d259579ed6f52510d8f1ab692808f0d40691"
+  dependencies:
+    chalk "^2.0.1"
+    co "^4.6.0"
+    expect "^22.4.0"
+    graceful-fs "^4.1.11"
+    is-generator-fn "^1.0.0"
+    jest-diff "^22.4.0"
+    jest-matcher-utils "^22.4.0"
+    jest-message-util "^22.4.0"
+    jest-snapshot "^22.4.0"
+    jest-util "^22.4.1"
+    source-map-support "^0.5.0"
+
+jest-matcher-utils@^22.4.0:
+  version "22.4.0"
+  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-22.4.0.tgz#d55f5faf2270462736bdf7c7485ee931c9d4b6a1"
+  dependencies:
+    chalk "^2.0.1"
+    jest-get-type "^22.1.0"
+    pretty-format "^22.4.0"
+
+jest-message-util@^22.4.0:
+  version "22.4.0"
+  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-22.4.0.tgz#e3d861df16d2fee60cb2bc8feac2188a42579642"
+  dependencies:
+    "@babel/code-frame" "^7.0.0-beta.35"
+    chalk "^2.0.1"
+    micromatch "^2.3.11"
+    slash "^1.0.0"
+    stack-utils "^1.0.1"
+
+jest-mock@^22.2.0:
+  version "22.2.0"
+  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-22.2.0.tgz#444b3f9488a7473adae09bc8a77294afded397a7"
+
+jest-regex-util@^22.1.0:
+  version "22.1.0"
+  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-22.1.0.tgz#5daf2fe270074b6da63e5d85f1c9acc866768f53"
+
+jest-resolve@^22.4.2:
+  version "22.4.2"
+  resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-22.4.2.tgz#25d88aa4147462c9c1c6a1ba16250d3794c24d00"
+  dependencies:
+    browser-resolve "^1.11.2"
+    chalk "^2.0.1"
+
+jest-snapshot@^22.4.0:
+  version "22.4.0"
+  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-22.4.0.tgz#03d3ce63f8fa7352388afc6a3c8b5ccc3a180ed7"
+  dependencies:
+    chalk "^2.0.1"
+    jest-diff "^22.4.0"
+    jest-matcher-utils "^22.4.0"
+    mkdirp "^0.5.1"
+    natural-compare "^1.4.0"
+    pretty-format "^22.4.0"
+
+jest-util@^22.4.1:
+  version "22.4.1"
+  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-22.4.1.tgz#dd17c3bdb067f8e90591563ec0c42bf847dc249f"
+  dependencies:
+    callsites "^2.0.0"
+    chalk "^2.0.1"
+    graceful-fs "^4.1.11"
+    is-ci "^1.0.10"
+    jest-message-util "^22.4.0"
+    mkdirp "^0.5.1"
+    source-map "^0.6.0"
+
+jest-validate@^22.4.0, jest-validate@^22.4.2:
+  version "22.4.2"
+  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-22.4.2.tgz#e789a4e056173bf97fe797a2df2d52105c57d4f4"
+  dependencies:
+    chalk "^2.0.1"
+    jest-config "^22.4.2"
+    jest-get-type "^22.1.0"
+    leven "^2.1.0"
+    pretty-format "^22.4.0"
+
+js-tokens@^3.0.0, js-tokens@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
+
+js-yaml@3.x, js-yaml@^3.9.0, js-yaml@^3.9.1:
+  version "3.11.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
+jsbn@~0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
+
+jsdom@^11.5.1:
+  version "11.6.2"
+  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-11.6.2.tgz#25d1ef332d48adf77fc5221fe2619967923f16bb"
+  dependencies:
+    abab "^1.0.4"
+    acorn "^5.3.0"
+    acorn-globals "^4.1.0"
+    array-equal "^1.0.0"
+    browser-process-hrtime "^0.1.2"
+    content-type-parser "^1.0.2"
+    cssom ">= 0.3.2 < 0.4.0"
+    cssstyle ">= 0.2.37 < 0.3.0"
+    domexception "^1.0.0"
+    escodegen "^1.9.0"
+    html-encoding-sniffer "^1.0.2"
+    left-pad "^1.2.0"
+    nwmatcher "^1.4.3"
+    parse5 "4.0.0"
+    pn "^1.1.0"
+    request "^2.83.0"
+    request-promise-native "^1.0.5"
+    sax "^1.2.4"
+    symbol-tree "^3.2.2"
+    tough-cookie "^2.3.3"
+    w3c-hr-time "^1.0.1"
+    webidl-conversions "^4.0.2"
+    whatwg-encoding "^1.0.3"
+    whatwg-url "^6.4.0"
+    ws "^4.0.0"
+    xml-name-validator "^3.0.0"
+
+jsesc@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
+
+jsesc@^2.5.1:
+  version "2.5.1"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.1.tgz#e421a2a8e20d6b0819df28908f782526b96dd1fe"
+
+jsesc@~0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
+
+json-loader@^0.5.4:
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/json-loader/-/json-loader-0.5.7.tgz#dca14a70235ff82f0ac9a3abeb60d337a365185d"
+
+json-parse-better-errors@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.1.tgz#50183cd1b2d25275de069e9e71b467ac9eab973a"
+
+json-schema-traverse@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
+
+json-schema@0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
+
+json-stable-stringify-without-jsonify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
+
+json-stable-stringify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
+  dependencies:
+    jsonify "~0.0.0"
+
+json-stable-stringify@~0.0.0:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-0.0.1.tgz#611c23e814db375527df851193db59dd2af27f45"
+  dependencies:
+    jsonify "~0.0.0"
+
+json-stringify-safe@5.0.x, json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.0, json-stringify-safe@~5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
+
+json3@3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
+
+json5@^0.5.0, json5@^0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
+
+jsonfile@^2.1.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
+jsonify@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
+
+jsonparse@^1.2.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
+
+jsonpointer@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
+
+jsprim@^1.2.2:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
+  dependencies:
+    assert-plus "1.0.0"
+    extsprintf "1.3.0"
+    json-schema "0.2.3"
+    verror "1.10.0"
+
+karma-chrome-launcher@^2.1.1:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/karma-chrome-launcher/-/karma-chrome-launcher-2.2.0.tgz#cf1b9d07136cc18fe239327d24654c3dbc368acf"
+  dependencies:
+    fs-access "^1.0.0"
+    which "^1.2.1"
+
+karma-coverage@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/karma-coverage/-/karma-coverage-1.1.1.tgz#5aff8b39cf6994dc22de4c84362c76001b637cf6"
+  dependencies:
+    dateformat "^1.0.6"
+    istanbul "^0.4.0"
+    lodash "^3.8.0"
+    minimatch "^3.0.0"
+    source-map "^0.5.1"
+
+karma-firefox-launcher@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/karma-firefox-launcher/-/karma-firefox-launcher-1.1.0.tgz#2c47030452f04531eb7d13d4fc7669630bb93339"
+
+karma-jasmine@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/karma-jasmine/-/karma-jasmine-1.1.1.tgz#6fe840e75a11600c9d91e84b33c458e1c46a3529"
+
+karma-mocha-reporter@^2.2.3:
+  version "2.2.5"
+  resolved "https://registry.yarnpkg.com/karma-mocha-reporter/-/karma-mocha-reporter-2.2.5.tgz#15120095e8ed819186e47a0b012f3cd741895560"
+  dependencies:
+    chalk "^2.1.0"
+    log-symbols "^2.1.0"
+    strip-ansi "^4.0.0"
+
+karma-phantomjs-launcher@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/karma-phantomjs-launcher/-/karma-phantomjs-launcher-1.0.4.tgz#d23ca34801bda9863ad318e3bb4bd4062b13acd2"
+  dependencies:
+    lodash "^4.0.1"
+    phantomjs-prebuilt "^2.1.7"
+
+karma-safari-launcher@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/karma-safari-launcher/-/karma-safari-launcher-1.0.0.tgz#96982a2cc47d066aae71c553babb28319115a2ce"
+
+karma-sauce-launcher@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/karma-sauce-launcher/-/karma-sauce-launcher-1.2.0.tgz#6f2558ddef3cf56879fa27540c8ae9f8bfd16bca"
+  dependencies:
+    q "^1.5.0"
+    sauce-connect-launcher "^1.2.2"
+    saucelabs "^1.4.0"
+    wd "^1.4.0"
+
+karma-sourcemap-loader@^0.3.7:
+  version "0.3.7"
+  resolved "https://registry.yarnpkg.com/karma-sourcemap-loader/-/karma-sourcemap-loader-0.3.7.tgz#91322c77f8f13d46fed062b042e1009d4c4505d8"
+  dependencies:
+    graceful-fs "^4.1.2"
+
+karma-webpack@^2.0.3:
+  version "2.0.13"
+  resolved "https://registry.yarnpkg.com/karma-webpack/-/karma-webpack-2.0.13.tgz#cf56e3056c15b7747a0bb2140fc9a6be41dd9f02"
+  dependencies:
+    async "^2.0.0"
+    babel-runtime "^6.0.0"
+    loader-utils "^1.0.0"
+    lodash "^4.0.0"
+    source-map "^0.5.6"
+    webpack-dev-middleware "^1.12.0"
+
+karma@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/karma/-/karma-2.0.0.tgz#a02698dd7f0f05ff5eb66ab8f65582490b512e58"
+  dependencies:
+    bluebird "^3.3.0"
+    body-parser "^1.16.1"
+    browserify "^14.5.0"
+    chokidar "^1.4.1"
+    colors "^1.1.0"
+    combine-lists "^1.0.0"
+    connect "^3.6.0"
+    core-js "^2.2.0"
+    di "^0.0.1"
+    dom-serialize "^2.2.0"
+    expand-braces "^0.1.1"
+    glob "^7.1.1"
+    graceful-fs "^4.1.2"
+    http-proxy "^1.13.0"
+    isbinaryfile "^3.0.0"
+    lodash "^4.17.4"
+    log4js "^2.3.9"
+    mime "^1.3.4"
+    minimatch "^3.0.2"
+    optimist "^0.6.1"
+    qjobs "^1.1.4"
+    range-parser "^1.2.0"
+    rimraf "^2.6.0"
+    safe-buffer "^5.0.1"
+    socket.io "2.0.4"
+    source-map "^0.6.1"
+    tmp "0.0.33"
+    useragent "^2.1.12"
+
+kew@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/kew/-/kew-0.7.0.tgz#79d93d2d33363d6fdd2970b335d9141ad591d79b"
+
+kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
+  dependencies:
+    is-buffer "^1.1.5"
+
+kind-of@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-4.0.0.tgz#20813df3d712928b207378691a45066fae72dd57"
+  dependencies:
+    is-buffer "^1.1.5"
+
+kind-of@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-5.1.0.tgz#729c91e2d857b7a419a1f9aa65685c4c33f5845d"
+
+kind-of@^6.0.0, kind-of@^6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
+
+klaw@^1.0.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/klaw/-/klaw-1.3.1.tgz#4088433b46b3b1ba259d78785d8e96f73ba02439"
+  optionalDependencies:
+    graceful-fs "^4.1.9"
+
+labeled-stream-splicer@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/labeled-stream-splicer/-/labeled-stream-splicer-2.0.0.tgz#a52e1d138024c00b86b1c0c91f677918b8ae0a59"
+  dependencies:
+    inherits "^2.0.1"
+    isarray "~0.0.1"
+    stream-splicer "^2.0.0"
+
+lazy-cache@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
+
+lazy-cache@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-2.0.2.tgz#b9190a4f913354694840859f8a8f7084d8822264"
+  dependencies:
+    set-getter "^0.1.0"
+
+lazystream@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
+  dependencies:
+    readable-stream "^2.0.5"
+
+lcid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  dependencies:
+    invert-kv "^1.0.0"
+
+left-pad@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.2.0.tgz#d30a73c6b8201d8f7d8e7956ba9616087a68e0ee"
+
+leven@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
+
+levn@^0.3.0, levn@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
+  dependencies:
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+
+lexical-scope@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/lexical-scope/-/lexical-scope-1.2.0.tgz#fcea5edc704a4b3a8796cdca419c3a0afaf22df4"
+  dependencies:
+    astw "^2.0.0"
+
+libbase64@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/libbase64/-/libbase64-0.1.0.tgz#62351a839563ac5ff5bd26f12f60e9830bb751e6"
+
+libmime@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/libmime/-/libmime-3.0.0.tgz#51a1a9e7448ecbd32cda54421675bb21bc093da6"
+  dependencies:
+    iconv-lite "0.4.15"
+    libbase64 "0.1.0"
+    libqp "1.1.0"
+
+libqp@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/libqp/-/libqp-1.1.0.tgz#f5e6e06ad74b794fb5b5b66988bf728ef1dedbe8"
+
+lint-staged@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.0.0.tgz#57926c63201e7bd38ca0576d74391efa699b4a9d"
+  dependencies:
+    app-root-path "^2.0.1"
+    chalk "^2.3.1"
+    commander "^2.14.1"
+    cosmiconfig "^4.0.0"
+    debug "^3.1.0"
+    dedent "^0.7.0"
+    execa "^0.9.0"
+    find-parent-dir "^0.3.0"
+    is-glob "^4.0.0"
+    jest-validate "^22.4.0"
+    listr "^0.13.0"
+    lodash "^4.17.5"
+    log-symbols "^2.2.0"
+    micromatch "^3.1.8"
+    npm-which "^3.0.1"
+    p-map "^1.1.1"
+    path-is-inside "^1.0.2"
+    pify "^3.0.0"
+    please-upgrade-node "^3.0.1"
+    staged-git-files "1.1.0"
+    stringify-object "^3.2.2"
+
+listr-silent-renderer@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz#924b5a3757153770bf1a8e3fbf74b8bbf3f9242e"
+
+listr-update-renderer@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/listr-update-renderer/-/listr-update-renderer-0.4.0.tgz#344d980da2ca2e8b145ba305908f32ae3f4cc8a7"
+  dependencies:
+    chalk "^1.1.3"
+    cli-truncate "^0.2.1"
+    elegant-spinner "^1.0.1"
+    figures "^1.7.0"
+    indent-string "^3.0.0"
+    log-symbols "^1.0.2"
+    log-update "^1.0.2"
+    strip-ansi "^3.0.1"
+
+listr-verbose-renderer@^0.4.0:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/listr-verbose-renderer/-/listr-verbose-renderer-0.4.1.tgz#8206f4cf6d52ddc5827e5fd14989e0e965933a35"
+  dependencies:
+    chalk "^1.1.3"
+    cli-cursor "^1.0.2"
+    date-fns "^1.27.2"
+    figures "^1.7.0"
+
+listr@^0.13.0:
+  version "0.13.0"
+  resolved "https://registry.yarnpkg.com/listr/-/listr-0.13.0.tgz#20bb0ba30bae660ee84cc0503df4be3d5623887d"
+  dependencies:
+    chalk "^1.1.3"
+    cli-truncate "^0.2.1"
+    figures "^1.7.0"
+    indent-string "^2.1.0"
+    is-observable "^0.2.0"
+    is-promise "^2.1.0"
+    is-stream "^1.1.0"
+    listr-silent-renderer "^1.1.1"
+    listr-update-renderer "^0.4.0"
+    listr-verbose-renderer "^0.4.0"
+    log-symbols "^1.0.2"
+    log-update "^1.0.2"
+    ora "^0.2.3"
+    p-map "^1.1.1"
+    rxjs "^5.4.2"
+    stream-to-observable "^0.2.0"
+    strip-ansi "^3.0.1"
+
+load-json-file@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    strip-bom "^2.0.0"
+
+load-json-file@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    strip-bom "^3.0.0"
+
+load-json-file@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-4.0.0.tgz#2f5f45ab91e33216234fd53adab668eb4ec0993b"
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^4.0.0"
+    pify "^3.0.0"
+    strip-bom "^3.0.0"
+
+loader-fs-cache@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/loader-fs-cache/-/loader-fs-cache-1.0.1.tgz#56e0bf08bd9708b26a765b68509840c8dec9fdbc"
+  dependencies:
+    find-cache-dir "^0.1.1"
+    mkdirp "0.5.1"
+
+loader-runner@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
+
+loader-utils@^1.0.0, loader-utils@^1.0.2, loader-utils@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
+  dependencies:
+    big.js "^3.1.3"
+    emojis-list "^2.0.0"
+    json5 "^0.5.0"
+
+locate-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
+  dependencies:
+    p-locate "^2.0.0"
+    path-exists "^3.0.0"
+
+lodash._arraycopy@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/lodash._arraycopy/-/lodash._arraycopy-3.0.0.tgz#76e7b7c1f1fb92547374878a562ed06a3e50f6e1"
+
+lodash._arrayeach@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/lodash._arrayeach/-/lodash._arrayeach-3.0.0.tgz#bab156b2a90d3f1bbd5c653403349e5e5933ef9e"
+
+lodash._baseassign@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
+  dependencies:
+    lodash._basecopy "^3.0.0"
+    lodash.keys "^3.0.0"
+
+lodash._baseclone@^3.0.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/lodash._baseclone/-/lodash._baseclone-3.3.0.tgz#303519bf6393fe7e42f34d8b630ef7794e3542b7"
+  dependencies:
+    lodash._arraycopy "^3.0.0"
+    lodash._arrayeach "^3.0.0"
+    lodash._baseassign "^3.0.0"
+    lodash._basefor "^3.0.0"
+    lodash.isarray "^3.0.0"
+    lodash.keys "^3.0.0"
+
+lodash._baseclone@^4.0.0:
+  version "4.5.7"
+  resolved "https://registry.yarnpkg.com/lodash._baseclone/-/lodash._baseclone-4.5.7.tgz#ce42ade08384ef5d62fa77c30f61a46e686f8434"
+
+lodash._basecopy@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/lodash._basecopy/-/lodash._basecopy-3.0.1.tgz#8da0e6a876cf344c0ad8a54882111dd3c5c7ca36"
+
+lodash._basecreate@^3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash._basecreate/-/lodash._basecreate-3.0.3.tgz#1bc661614daa7fc311b7d03bf16806a0213cf821"
+
+lodash._basefor@^3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash._basefor/-/lodash._basefor-3.0.3.tgz#7550b4e9218ef09fad24343b612021c79b4c20c2"
+
+lodash._bindcallback@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/lodash._bindcallback/-/lodash._bindcallback-3.0.1.tgz#e531c27644cf8b57a99e17ed95b35c748789392e"
+
+lodash._getnative@^3.0.0:
+  version "3.9.1"
+  resolved "https://registry.yarnpkg.com/lodash._getnative/-/lodash._getnative-3.9.1.tgz#570bc7dede46d61cdcde687d65d3eecbaa3aaff5"
+
+lodash._isiterateecall@^3.0.0:
+  version "3.0.9"
+  resolved "https://registry.yarnpkg.com/lodash._isiterateecall/-/lodash._isiterateecall-3.0.9.tgz#5203ad7ba425fae842460e696db9cf3e6aac057c"
+
+lodash._reinterpolate@~3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
+
+lodash._stack@^4.0.0:
+  version "4.1.3"
+  resolved "https://registry.yarnpkg.com/lodash._stack/-/lodash._stack-4.1.3.tgz#751aa76c1b964b047e76d14fc72a093fcb5e2dd0"
+
+lodash.clone@3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash.clone/-/lodash.clone-3.0.3.tgz#84688c73d32b5a90ca25616963f189252a997043"
+  dependencies:
+    lodash._baseclone "^3.0.0"
+    lodash._bindcallback "^3.0.0"
+    lodash._isiterateecall "^3.0.0"
+
+lodash.create@3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lodash.create/-/lodash.create-3.1.1.tgz#d7f2849f0dbda7e04682bb8cd72ab022461debe7"
+  dependencies:
+    lodash._baseassign "^3.0.0"
+    lodash._basecreate "^3.0.0"
+    lodash._isiterateecall "^3.0.0"
+
+lodash.defaultsdeep@4.3.2:
+  version "4.3.2"
+  resolved "https://registry.yarnpkg.com/lodash.defaultsdeep/-/lodash.defaultsdeep-4.3.2.tgz#6c1a586e6c5647b0e64e2d798141b8836158be8a"
+  dependencies:
+    lodash._baseclone "^4.0.0"
+    lodash._stack "^4.0.0"
+    lodash.isplainobject "^4.0.0"
+    lodash.keysin "^4.0.0"
+    lodash.mergewith "^4.0.0"
+    lodash.rest "^4.0.0"
+
+lodash.isarguments@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
+
+lodash.isarray@^3.0.0:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/lodash.isarray/-/lodash.isarray-3.0.4.tgz#79e4eb88c36a8122af86f844aa9bcd851b5fbb55"
+
+lodash.isplainobject@^4.0.0:
+  version "4.0.6"
+  resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
+
+lodash.keys@^3.0.0:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-3.1.2.tgz#4dbc0472b156be50a0b286855d1bd0b0c656098a"
+  dependencies:
+    lodash._getnative "^3.0.0"
+    lodash.isarguments "^3.0.0"
+    lodash.isarray "^3.0.0"
+
+lodash.keysin@^4.0.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lodash.keysin/-/lodash.keysin-4.2.0.tgz#8cc3fb35c2d94acc443a1863e02fa40799ea6f28"
+
+lodash.map@^4.5.1:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.map/-/lodash.map-4.6.0.tgz#771ec7839e3473d9c4cde28b19394c3562f4f6d3"
+
+lodash.memoize@~3.0.3:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-3.0.4.tgz#2dcbd2c287cbc0a55cc42328bd0c736150d53e3f"
+
+lodash.mergewith@^4.0.0:
+  version "4.6.1"
+  resolved "https://registry.yarnpkg.com/lodash.mergewith/-/lodash.mergewith-4.6.1.tgz#639057e726c3afbdb3e7d42741caa8d6e4335927"
+
+lodash.rest@^4.0.0:
+  version "4.0.5"
+  resolved "https://registry.yarnpkg.com/lodash.rest/-/lodash.rest-4.0.5.tgz#954ef75049262038c96d1fc98b28fdaf9f0772aa"
+
+lodash.sortby@^4.7.0:
+  version "4.7.0"
+  resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
+
+lodash.template@^4.0.2, lodash.template@^4.4.0:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.4.0.tgz#e73a0385c8355591746e020b99679c690e68fba0"
+  dependencies:
+    lodash._reinterpolate "~3.0.0"
+    lodash.templatesettings "^4.0.0"
+
+lodash.templatesettings@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/lodash.templatesettings/-/lodash.templatesettings-4.1.0.tgz#2b4d4e95ba440d915ff08bc899e4553666713316"
+  dependencies:
+    lodash._reinterpolate "~3.0.0"
+
+lodash.uniq@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
+
+lodash@4.16.2:
+  version "4.16.2"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.16.2.tgz#3e626db827048a699281a8a125226326cfc0e652"
+
+lodash@4.17.2:
+  version "4.17.2"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.2.tgz#34a3055babe04ce42467b607d700072c7ff6bf42"
+
+lodash@^3.8.0:
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
+
+lodash@^4.0.0, lodash@^4.0.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.6, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
+  version "4.17.5"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
+
+log-symbols@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
+  dependencies:
+    chalk "^1.0.0"
+
+log-symbols@^2.1.0, log-symbols@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
+  dependencies:
+    chalk "^2.0.1"
+
+log-update@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/log-update/-/log-update-1.0.2.tgz#19929f64c4093d2d2e7075a1dad8af59c296b8d1"
+  dependencies:
+    ansi-escapes "^1.0.0"
+    cli-cursor "^1.0.2"
+
+log4js@^2.3.9:
+  version "2.5.3"
+  resolved "https://registry.yarnpkg.com/log4js/-/log4js-2.5.3.tgz#38bb7bde5e9c1c181bd75e8bc128c5cd0409caf1"
+  dependencies:
+    circular-json "^0.5.1"
+    date-format "^1.2.0"
+    debug "^3.1.0"
+    semver "^5.3.0"
+    streamroller "^0.7.0"
+  optionalDependencies:
+    amqplib "^0.5.2"
+    axios "^0.15.3"
+    hipchat-notifier "^1.1.0"
+    loggly "^1.1.0"
+    mailgun-js "^0.7.0"
+    nodemailer "^2.5.0"
+    redis "^2.7.1"
+    slack-node "~0.2.0"
+
+loggly@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/loggly/-/loggly-1.1.1.tgz#0a0fc1d3fa3a5ec44fdc7b897beba2a4695cebee"
+  dependencies:
+    json-stringify-safe "5.0.x"
+    request "2.75.x"
+    timespan "2.3.x"
+
+longest@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
+
+loose-envify@^1.0.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
+  dependencies:
+    js-tokens "^3.0.0"
+
+loud-rejection@^1.0.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
+  dependencies:
+    currently-unhandled "^0.4.1"
+    signal-exit "^3.0.0"
+
+lru-cache@4.1.x, lru-cache@^4.0.1, lru-cache@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.1.tgz#622e32e82488b49279114a4f9ecf45e7cd6bba55"
+  dependencies:
+    pseudomap "^1.0.2"
+    yallist "^2.1.2"
+
+lru-cache@~2.6.5:
+  version "2.6.5"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.6.5.tgz#e56d6354148ede8d7707b58d143220fd08df0fd5"
+
+magic-string@^0.16.0:
+  version "0.16.0"
+  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.16.0.tgz#970ebb0da7193301285fb1aa650f39bdd81eb45a"
+  dependencies:
+    vlq "^0.2.1"
+
+magic-string@^0.22.4:
+  version "0.22.4"
+  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.22.4.tgz#31039b4e40366395618c1d6cf8193c53917475ff"
+  dependencies:
+    vlq "^0.2.1"
+
+mailcomposer@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/mailcomposer/-/mailcomposer-4.0.1.tgz#0e1c44b2a07cf740ee17dc149ba009f19cadfeb4"
+  dependencies:
+    buildmail "4.0.1"
+    libmime "3.0.0"
+
+mailgun-js@^0.7.0:
+  version "0.7.15"
+  resolved "https://registry.yarnpkg.com/mailgun-js/-/mailgun-js-0.7.15.tgz#ee366a20dac64c3c15c03d6c1b3e0ed795252abb"
+  dependencies:
+    async "~2.1.2"
+    debug "~2.2.0"
+    form-data "~2.1.1"
+    inflection "~1.10.0"
+    is-stream "^1.1.0"
+    path-proxy "~1.0.0"
+    proxy-agent "~2.0.0"
+    q "~1.4.0"
+    tsscmp "~1.0.0"
+
+make-dir@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.2.0.tgz#6d6a49eead4aae296c53bbf3a1a008bd6c89469b"
+  dependencies:
+    pify "^3.0.0"
+
+map-cache@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
+
+map-obj@^1.0.0, map-obj@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-1.0.1.tgz#d933ceb9205d82bdcf4886f6742bdc2b4dea146d"
+
+map-obj@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-2.0.0.tgz#a65cd29087a92598b8791257a523e021222ac1f9"
+
+map-visit@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/map-visit/-/map-visit-1.0.0.tgz#ecdca8f13144e660f1b5bd41f12f3479d98dfb8f"
+  dependencies:
+    object-visit "^1.0.0"
+
+md5.js@^1.3.4:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.4.tgz#e9bdbde94a20a5ac18b04340fc5764d5b09d901d"
+  dependencies:
+    hash-base "^3.0.0"
+    inherits "^2.0.1"
+
+media-typer@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
+
+mem@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
+  dependencies:
+    mimic-fn "^1.0.0"
+
+memory-fs@^0.4.0, memory-fs@~0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
+  dependencies:
+    errno "^0.1.3"
+    readable-stream "^2.0.1"
+
+meow@^3.3.0:
+  version "3.7.0"
+  resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
+  dependencies:
+    camelcase-keys "^2.0.0"
+    decamelize "^1.1.2"
+    loud-rejection "^1.0.0"
+    map-obj "^1.0.1"
+    minimist "^1.1.3"
+    normalize-package-data "^2.3.4"
+    object-assign "^4.0.1"
+    read-pkg-up "^1.0.1"
+    redent "^1.0.0"
+    trim-newlines "^1.0.0"
+
+meow@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/meow/-/meow-4.0.0.tgz#fd5855dd008db5b92c552082db1c307cba20b29d"
+  dependencies:
+    camelcase-keys "^4.0.0"
+    decamelize-keys "^1.0.0"
+    loud-rejection "^1.0.0"
+    minimist "^1.1.3"
+    minimist-options "^3.0.1"
+    normalize-package-data "^2.3.4"
+    read-pkg-up "^3.0.0"
+    redent "^2.0.0"
+    trim-newlines "^2.0.0"
+
+merge@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
+
+micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
+  version "2.3.11"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
+  dependencies:
+    arr-diff "^2.0.0"
+    array-unique "^0.2.1"
+    braces "^1.8.2"
+    expand-brackets "^0.1.4"
+    extglob "^0.3.1"
+    filename-regex "^2.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.1"
+    kind-of "^3.0.2"
+    normalize-path "^2.0.1"
+    object.omit "^2.0.0"
+    parse-glob "^3.0.4"
+    regex-cache "^0.4.2"
+
+micromatch@^3.1.4, micromatch@^3.1.8:
+  version "3.1.9"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.9.tgz#15dc93175ae39e52e93087847096effc73efcf89"
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    braces "^2.3.1"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    extglob "^2.0.4"
+    fragment-cache "^0.2.1"
+    kind-of "^6.0.2"
+    nanomatch "^1.2.9"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+miller-rabin@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/miller-rabin/-/miller-rabin-4.0.1.tgz#f080351c865b0dc562a8462966daa53543c78a4d"
+  dependencies:
+    bn.js "^4.0.0"
+    brorand "^1.0.1"
+
+mime-db@~1.33.0:
+  version "1.33.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
+
+mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.7:
+  version "2.1.18"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
+  dependencies:
+    mime-db "~1.33.0"
+
+mime-types@~1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-1.0.2.tgz#995ae1392ab8affcbfcb2641dd054e943c0d5dce"
+
+mime@^1.3.4, mime@^1.4.1, mime@^1.5.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+
+mime@~1.2.11:
+  version "1.2.11"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.2.11.tgz#58203eed86e3a5ef17aed2b7d9ebd47f0a60dd10"
+
+mimic-fn@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
+
+minimalistic-assert@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.0.tgz#702be2dda6b37f4836bcb3f5db56641b64a1d3d3"
+
+minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
+
+"minimatch@2 || 3", minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  dependencies:
+    brace-expansion "^1.1.7"
+
+minimatch@3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
+  dependencies:
+    brace-expansion "^1.0.0"
+
+minimist-options@^3.0.1:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/minimist-options/-/minimist-options-3.0.2.tgz#fba4c8191339e13ecf4d61beb03f070103f3d954"
+  dependencies:
+    arrify "^1.0.1"
+    is-plain-obj "^1.1.0"
+
+minimist@0.0.8:
+  version "0.0.8"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+
+minimist@1.2.0, minimist@^1.1.0, minimist@^1.1.3, minimist@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+
+minimist@~0.0.1:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
+
+mixin-deep@^1.2.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
+  dependencies:
+    for-in "^1.0.2"
+    is-extendable "^1.0.1"
+
+mkdirp@0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.0.tgz#1d73076a6df986cd9344e15e71fcc05a4c9abf12"
+  dependencies:
+    minimist "0.0.8"
+
+mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  dependencies:
+    minimist "0.0.8"
+
+mkpath@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/mkpath/-/mkpath-1.0.0.tgz#ebb3a977e7af1c683ae6fda12b545a6ba6c5853d"
+
+mocha-nightwatch@3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/mocha-nightwatch/-/mocha-nightwatch-3.2.2.tgz#91bcb9b3bde057dd7677c78125e491e58d66647c"
+  dependencies:
+    browser-stdout "1.3.0"
+    commander "2.9.0"
+    debug "2.2.0"
+    diff "1.4.0"
+    escape-string-regexp "1.0.5"
+    glob "7.0.5"
+    growl "1.9.2"
+    json3 "3.3.2"
+    lodash.create "3.1.1"
+    mkdirp "0.5.1"
+    supports-color "3.1.2"
+
+modify-values@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/modify-values/-/modify-values-1.0.0.tgz#e2b6cdeb9ce19f99317a53722f3dbf5df5eaaab2"
+
+module-deps@^4.0.8:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/module-deps/-/module-deps-4.1.1.tgz#23215833f1da13fd606ccb8087b44852dcb821fd"
+  dependencies:
+    JSONStream "^1.0.3"
+    browser-resolve "^1.7.0"
+    cached-path-relative "^1.0.0"
+    concat-stream "~1.5.0"
+    defined "^1.0.0"
+    detective "^4.0.0"
+    duplexer2 "^0.1.2"
+    inherits "^2.0.1"
+    parents "^1.0.0"
+    readable-stream "^2.0.2"
+    resolve "^1.1.3"
+    stream-combiner2 "^1.1.1"
+    subarg "^1.0.0"
+    through2 "^2.0.0"
+    xtend "^4.0.0"
+
+ms@0.7.1:
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
+
+ms@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+
+mute-stream@0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.6.tgz#48962b19e169fd1dfc240b3f1e7317627bbc47db"
+
+mute-stream@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
+
+nan@^2.3.0:
+  version "2.9.2"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.9.2.tgz#f564d75f5f8f36a6d9456cca7a6c4fe488ab7866"
+
+nanomatch@^1.2.9:
+  version "1.2.9"
+  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    fragment-cache "^0.2.1"
+    is-odd "^2.0.0"
+    is-windows "^1.0.2"
+    kind-of "^6.0.2"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+natural-compare@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
+
+negotiator@0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
+
+neo-async@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.0.tgz#76b1c823130cca26acfbaccc8fbaf0a2fa33b18f"
+
+netmask@~1.0.4:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/netmask/-/netmask-1.0.6.tgz#20297e89d86f6f6400f250d9f4f6b4c1945fcd35"
+
+nightwatch-helpers@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/nightwatch-helpers/-/nightwatch-helpers-1.2.0.tgz#cdefeb7635074a141825a7b6d1b955b6d7810a0f"
+
+nightwatch@^0.9.16:
+  version "0.9.20"
+  resolved "https://registry.yarnpkg.com/nightwatch/-/nightwatch-0.9.20.tgz#156d17cd058cbc31f43ab18e915f7ec297fb53e0"
+  dependencies:
+    chai-nightwatch "~0.1.x"
+    ejs "2.5.7"
+    lodash.clone "3.0.3"
+    lodash.defaultsdeep "4.3.2"
+    minimatch "3.0.3"
+    mkpath "1.0.0"
+    mocha-nightwatch "3.2.2"
+    optimist "0.6.1"
+    proxy-agent "2.0.0"
+    q "1.4.1"
+
+node-libs-browser@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/node-libs-browser/-/node-libs-browser-2.1.0.tgz#5f94263d404f6e44767d726901fff05478d600df"
+  dependencies:
+    assert "^1.1.1"
+    browserify-zlib "^0.2.0"
+    buffer "^4.3.0"
+    console-browserify "^1.1.0"
+    constants-browserify "^1.0.0"
+    crypto-browserify "^3.11.0"
+    domain-browser "^1.1.1"
+    events "^1.0.0"
+    https-browserify "^1.0.0"
+    os-browserify "^0.3.0"
+    path-browserify "0.0.0"
+    process "^0.11.10"
+    punycode "^1.2.4"
+    querystring-es3 "^0.2.0"
+    readable-stream "^2.3.3"
+    stream-browserify "^2.0.1"
+    stream-http "^2.7.2"
+    string_decoder "^1.0.0"
+    timers-browserify "^2.0.4"
+    tty-browserify "0.0.0"
+    url "^0.11.0"
+    util "^0.10.3"
+    vm-browserify "0.0.4"
+
+node-pre-gyp@^0.6.39:
+  version "0.6.39"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
+  dependencies:
+    detect-libc "^1.0.2"
+    hawk "3.1.3"
+    mkdirp "^0.5.1"
+    nopt "^4.0.1"
+    npmlog "^4.0.2"
+    rc "^1.1.7"
+    request "2.81.0"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^2.2.1"
+    tar-pack "^3.4.0"
+
+node-uuid@~1.4.0, node-uuid@~1.4.7:
+  version "1.4.8"
+  resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.8.tgz#b040eb0923968afabf8d32fb1f17f1167fdab907"
+
+nodemailer-direct-transport@3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/nodemailer-direct-transport/-/nodemailer-direct-transport-3.3.2.tgz#e96fafb90358560947e569017d97e60738a50a86"
+  dependencies:
+    nodemailer-shared "1.1.0"
+    smtp-connection "2.12.0"
+
+nodemailer-fetch@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/nodemailer-fetch/-/nodemailer-fetch-1.6.0.tgz#79c4908a1c0f5f375b73fe888da9828f6dc963a4"
+
+nodemailer-shared@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/nodemailer-shared/-/nodemailer-shared-1.1.0.tgz#cf5994e2fd268d00f5cf0fa767a08169edb07ec0"
+  dependencies:
+    nodemailer-fetch "1.6.0"
+
+nodemailer-smtp-pool@2.8.2:
+  version "2.8.2"
+  resolved "https://registry.yarnpkg.com/nodemailer-smtp-pool/-/nodemailer-smtp-pool-2.8.2.tgz#2eb94d6cf85780b1b4725ce853b9cbd5e8da8c72"
+  dependencies:
+    nodemailer-shared "1.1.0"
+    nodemailer-wellknown "0.1.10"
+    smtp-connection "2.12.0"
+
+nodemailer-smtp-transport@2.7.2:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/nodemailer-smtp-transport/-/nodemailer-smtp-transport-2.7.2.tgz#03d71c76314f14ac7dbc7bf033a6a6d16d67fb77"
+  dependencies:
+    nodemailer-shared "1.1.0"
+    nodemailer-wellknown "0.1.10"
+    smtp-connection "2.12.0"
+
+nodemailer-wellknown@0.1.10:
+  version "0.1.10"
+  resolved "https://registry.yarnpkg.com/nodemailer-wellknown/-/nodemailer-wellknown-0.1.10.tgz#586db8101db30cb4438eb546737a41aad0cf13d5"
+
+nodemailer@^2.5.0:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-2.7.2.tgz#f242e649aeeae39b6c7ed740ef7b061c404d30f9"
+  dependencies:
+    libmime "3.0.0"
+    mailcomposer "4.0.1"
+    nodemailer-direct-transport "3.3.2"
+    nodemailer-shared "1.1.0"
+    nodemailer-smtp-pool "2.8.2"
+    nodemailer-smtp-transport "2.7.2"
+    socks "1.1.9"
+
+nopt@3.x:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
+  dependencies:
+    abbrev "1"
+
+nopt@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
+  dependencies:
+    abbrev "1"
+    osenv "^0.1.4"
+
+normalize-package-data@^2.3.0, normalize-package-data@^2.3.2, normalize-package-data@^2.3.4, normalize-package-data@^2.3.5:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
+  dependencies:
+    hosted-git-info "^2.1.4"
+    is-builtin-module "^1.0.0"
+    semver "2 || 3 || 4 || 5"
+    validate-npm-package-license "^3.0.1"
+
+normalize-path@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-1.0.0.tgz#32d0e472f91ff345701c15a8311018d3b0a90379"
+
+normalize-path@^2.0.0, normalize-path@^2.0.1, normalize-path@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
+  dependencies:
+    remove-trailing-separator "^1.0.1"
+
+npm-path@^2.0.2:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/npm-path/-/npm-path-2.0.4.tgz#c641347a5ff9d6a09e4d9bce5580c4f505278e64"
+  dependencies:
+    which "^1.2.10"
+
+npm-run-path@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
+  dependencies:
+    path-key "^2.0.0"
+
+npm-which@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/npm-which/-/npm-which-3.0.1.tgz#9225f26ec3a285c209cae67c3b11a6b4ab7140aa"
+  dependencies:
+    commander "^2.9.0"
+    npm-path "^2.0.2"
+    which "^1.2.10"
+
+npmlog@^4.0.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
+  dependencies:
+    are-we-there-yet "~1.1.2"
+    console-control-strings "~1.1.0"
+    gauge "~2.7.3"
+    set-blocking "~2.0.0"
+
+null-check@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/null-check/-/null-check-1.0.0.tgz#977dffd7176012b9ec30d2a39db5cf72a0439edd"
+
+number-is-nan@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
+
+nwmatcher@^1.4.3:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/nwmatcher/-/nwmatcher-1.4.3.tgz#64348e3b3d80f035b40ac11563d278f8b72db89c"
+
+oauth-sign@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.4.0.tgz#f22956f31ea7151a821e5f2fb32c113cad8b9f69"
+
+oauth-sign@~0.8.1, oauth-sign@~0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
+
+object-assign@^4.0.1, object-assign@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+
+object-component@0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
+
+object-copy@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
+  dependencies:
+    copy-descriptor "^0.1.0"
+    define-property "^0.2.5"
+    kind-of "^3.0.3"
+
+object-hash@^1.1.4:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.2.0.tgz#e96af0e96981996a1d47f88ead8f74f1ebc4422b"
+
+object-visit@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/object-visit/-/object-visit-1.0.1.tgz#f79c4493af0c5377b59fe39d395e41042dd045bb"
+  dependencies:
+    isobject "^3.0.0"
+
+object.omit@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
+  dependencies:
+    for-own "^0.1.4"
+    is-extendable "^0.1.1"
+
+object.pick@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
+  dependencies:
+    isobject "^3.0.1"
+
+on-finished@~2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
+  dependencies:
+    ee-first "1.1.1"
+
+once@1.x, once@^1.3.0, once@^1.3.3, once@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
+  dependencies:
+    wrappy "1"
+
+onetime@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+
+onetime@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  dependencies:
+    mimic-fn "^1.0.0"
+
+opener@~1.4.0:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/opener/-/opener-1.4.3.tgz#5c6da2c5d7e5831e8ffa3964950f8d6674ac90b8"
+
+optimist@0.6.1, optimist@0.6.x, optimist@^0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
+  dependencies:
+    minimist "~0.0.1"
+    wordwrap "~0.0.2"
+
+optionator@^0.8.1, optionator@^0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
+  dependencies:
+    deep-is "~0.1.3"
+    fast-levenshtein "~2.0.4"
+    levn "~0.3.0"
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+    wordwrap "~1.0.0"
+
+ora@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/ora/-/ora-0.2.3.tgz#37527d220adcd53c39b73571d754156d5db657a4"
+  dependencies:
+    chalk "^1.1.1"
+    cli-cursor "^1.0.2"
+    cli-spinners "^0.1.2"
+    object-assign "^4.0.1"
+
+os-browserify@^0.3.0, os-browserify@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.3.0.tgz#854373c7f5c2315914fc9bfc6bd8238fdda1ec27"
+
+os-homedir@^1.0.0, os-homedir@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
+
+os-locale@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
+  dependencies:
+    execa "^0.7.0"
+    lcid "^1.0.0"
+    mem "^1.1.0"
+
+os-shim@^0.1.2:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/os-shim/-/os-shim-0.1.3.tgz#6b62c3791cf7909ea35ed46e17658bb417cb3917"
+
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1, os-tmpdir@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
+
+osenv@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
+  dependencies:
+    os-homedir "^1.0.0"
+    os-tmpdir "^1.0.0"
+
+p-finally@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
+
+p-limit@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.2.0.tgz#0e92b6bedcb59f022c13d0f1949dc82d15909f1c"
+  dependencies:
+    p-try "^1.0.0"
+
+p-locate@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
+  dependencies:
+    p-limit "^1.1.0"
+
+p-map@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
+
+p-try@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
+
+pac-proxy-agent@1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/pac-proxy-agent/-/pac-proxy-agent-1.1.0.tgz#34a385dfdf61d2f0ecace08858c745d3e791fd4d"
+  dependencies:
+    agent-base "2"
+    debug "2"
+    extend "3"
+    get-uri "2"
+    http-proxy-agent "1"
+    https-proxy-agent "1"
+    pac-resolver "~2.0.0"
+    raw-body "2"
+    socks-proxy-agent "2"
+
+pac-resolver@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/pac-resolver/-/pac-resolver-2.0.0.tgz#99b88d2f193fbdeefc1c9a529c1f3260ab5277cd"
+  dependencies:
+    co "~3.0.6"
+    degenerator "~1.0.2"
+    ip "1.0.1"
+    netmask "~1.0.4"
+    thunkify "~2.1.1"
+
+pad-right@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/pad-right/-/pad-right-0.2.2.tgz#6fbc924045d244f2a2a244503060d3bfc6009774"
+  dependencies:
+    repeat-string "^1.5.2"
+
+pako@~1.0.5:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
+
+parents@^1.0.0, parents@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parents/-/parents-1.0.1.tgz#fedd4d2bf193a77745fe71e371d73c3307d9c751"
+  dependencies:
+    path-platform "~0.11.15"
+
+parse-asn1@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.0.tgz#37c4f9b7ed3ab65c74817b5f2480937fbf97c712"
+  dependencies:
+    asn1.js "^4.0.0"
+    browserify-aes "^1.0.0"
+    create-hash "^1.1.0"
+    evp_bytestokey "^1.0.0"
+    pbkdf2 "^3.0.3"
+
+parse-github-repo-url@^1.3.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/parse-github-repo-url/-/parse-github-repo-url-1.4.1.tgz#9e7d8bb252a6cb6ba42595060b7bf6df3dbc1f50"
+
+parse-glob@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
+  dependencies:
+    glob-base "^0.3.0"
+    is-dotfile "^1.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.0"
+
+parse-json@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
+  dependencies:
+    error-ex "^1.2.0"
+
+parse-json@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-4.0.0.tgz#be35f5425be1f7f6c747184f98a788cb99477ee0"
+  dependencies:
+    error-ex "^1.3.1"
+    json-parse-better-errors "^1.0.1"
+
+parse-passwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
+
+parse5@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"
+
+parseqs@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.5.tgz#d5208a3738e46766e291ba2ea173684921a8b89d"
+  dependencies:
+    better-assert "~1.0.0"
+
+parseuri@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.5.tgz#80204a50d4dbb779bfdc6ebe2778d90e4bce320a"
+  dependencies:
+    better-assert "~1.0.0"
+
+parseurl@~1.3.2:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
+
+pascalcase@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
+
+path-browserify@0.0.0, path-browserify@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/path-browserify/-/path-browserify-0.0.0.tgz#a0b870729aae214005b7d5032ec2cbbb0fb4451a"
+
+path-dirname@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/path-dirname/-/path-dirname-1.0.2.tgz#cc33d24d525e099a5388c0336c6e32b9160609e0"
+
+path-exists@2.1.0, path-exists@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
+  dependencies:
+    pinkie-promise "^2.0.0"
+
+path-exists@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
+
+path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
+
+path-is-inside@^1.0.1, path-is-inside@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
+
+path-key@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
+
+path-parse@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
+
+path-platform@~0.11.15:
+  version "0.11.15"
+  resolved "https://registry.yarnpkg.com/path-platform/-/path-platform-0.11.15.tgz#e864217f74c36850f0852b78dc7bf7d4a5721bf2"
+
+path-proxy@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/path-proxy/-/path-proxy-1.0.0.tgz#18e8a36859fc9d2f1a53b48dee138543c020de5e"
+  dependencies:
+    inflection "~1.3.0"
+
+path-type@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
+  dependencies:
+    graceful-fs "^4.1.2"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+path-type@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
+  dependencies:
+    pify "^2.0.0"
+
+path-type@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-3.0.0.tgz#cef31dc8e0a1a3bb0d105c0cd97cf3bf47f4e36f"
+  dependencies:
+    pify "^3.0.0"
+
+pbkdf2@^3.0.3:
+  version "3.0.14"
+  resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.14.tgz#a35e13c64799b06ce15320f459c230e68e73bade"
+  dependencies:
+    create-hash "^1.1.2"
+    create-hmac "^1.1.4"
+    ripemd160 "^2.0.1"
+    safe-buffer "^5.0.1"
+    sha.js "^2.4.8"
+
+pend@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"
+
+performance-now@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
+
+performance-now@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
+
+phantomjs-prebuilt@^2.1.14, phantomjs-prebuilt@^2.1.7:
+  version "2.1.16"
+  resolved "https://registry.yarnpkg.com/phantomjs-prebuilt/-/phantomjs-prebuilt-2.1.16.tgz#efd212a4a3966d3647684ea8ba788549be2aefef"
+  dependencies:
+    es6-promise "^4.0.3"
+    extract-zip "^1.6.5"
+    fs-extra "^1.0.0"
+    hasha "^2.2.0"
+    kew "^0.7.0"
+    progress "^1.1.8"
+    request "^2.81.0"
+    request-progress "^2.0.1"
+    which "^1.2.10"
+
+pify@^2.0.0, pify@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
+
+pify@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-3.0.0.tgz#e5a4acd2c101fdf3d9a4d07f0dbc4db49dd28176"
+
+pinkie-promise@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
+  dependencies:
+    pinkie "^2.0.0"
+
+pinkie@^2.0.0:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
+
+pkg-dir@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-1.0.0.tgz#7a4b508a8d5bb2d629d447056ff4e9c9314cf3d4"
+  dependencies:
+    find-up "^1.0.0"
+
+pkg-dir@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-2.0.0.tgz#f6d5d1109e19d63edf428e0bd57e12777615334b"
+  dependencies:
+    find-up "^2.1.0"
+
+please-upgrade-node@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.0.1.tgz#0a681f2c18915e5433a5ca2cd94e0b8206a782db"
+
+pluralize@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
+
+pn@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/pn/-/pn-1.1.0.tgz#e2f4cef0e219f463c179ab37463e4e1ecdccbafb"
+
+portfinder@^1.0.13:
+  version "1.0.13"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.13.tgz#bb32ecd87c27104ae6ee44b5a3ccbf0ebb1aede9"
+  dependencies:
+    async "^1.5.2"
+    debug "^2.2.0"
+    mkdirp "0.5.x"
+
+posix-character-classes@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
+
+prelude-ls@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
+
+preserve@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
+
+pretty-format@^22.4.0:
+  version "22.4.0"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-22.4.0.tgz#237b1f7e1c50ed03bc65c03ccc29d7c8bb7beb94"
+  dependencies:
+    ansi-regex "^3.0.0"
+    ansi-styles "^3.2.0"
+
+private@^0.1.6, private@^0.1.7:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
+
+process-nextick-args@~1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
+
+process-nextick-args@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
+
+process@^0.11.10, process@~0.11.0:
+  version "0.11.10"
+  resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
+
+progress@^1.1.8:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-1.1.8.tgz#e260c78f6161cdd9b0e56cc3e0a85de17c7a57be"
+
+progress@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
+
+proxy-agent@2.0.0, proxy-agent@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/proxy-agent/-/proxy-agent-2.0.0.tgz#57eb5347aa805d74ec681cb25649dba39c933499"
+  dependencies:
+    agent-base "2"
+    debug "2"
+    extend "3"
+    http-proxy-agent "1"
+    https-proxy-agent "1"
+    lru-cache "~2.6.5"
+    pac-proxy-agent "1"
+    socks-proxy-agent "2"
+
+prr@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
+
+pseudomap@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
+
+public-encrypt@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/public-encrypt/-/public-encrypt-4.0.0.tgz#39f699f3a46560dd5ebacbca693caf7c65c18cc6"
+  dependencies:
+    bn.js "^4.1.0"
+    browserify-rsa "^4.0.0"
+    create-hash "^1.1.0"
+    parse-asn1 "^5.0.0"
+    randombytes "^2.0.1"
+
+punycode@1.3.2:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
+
+punycode@1.4.1, punycode@^1.2.4, punycode@^1.3.2, punycode@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
+
+punycode@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
+
+q@1.4.1, q@~1.4.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
+
+q@^1.4.1, q@^1.5.0, q@^1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
+
+qjobs@^1.1.4:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/qjobs/-/qjobs-1.2.0.tgz#c45e9c61800bd087ef88d7e256423bdd49e5d071"
+
+qs@6.5.1, qs@~6.5.1:
+  version "6.5.1"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
+
+qs@~1.2.0:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-1.2.2.tgz#19b57ff24dc2a99ce1f8bdf6afcda59f8ef61f88"
+
+qs@~2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
+
+qs@~6.2.0:
+  version "6.2.3"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.3.tgz#1cfcb25c10a9b2b483053ff39f5dfc9233908cfe"
+
+qs@~6.3.0:
+  version "6.3.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
+
+qs@~6.4.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
+
+querystring-es3@^0.2.0, querystring-es3@~0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
+
+querystring@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
+
+quick-lru@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
+
+randomatic@^1.1.3:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-1.1.7.tgz#c7abe9cc8b87c0baa876b19fde83fd464797e38c"
+  dependencies:
+    is-number "^3.0.0"
+    kind-of "^4.0.0"
+
+randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.0.6.tgz#d302c522948588848a8d300c932b44c24231da80"
+  dependencies:
+    safe-buffer "^5.1.0"
+
+randomfill@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/randomfill/-/randomfill-1.0.4.tgz#c92196fc86ab42be983f1bf31778224931d61458"
+  dependencies:
+    randombytes "^2.0.5"
+    safe-buffer "^5.1.0"
+
+range-parser@^1.0.3, range-parser@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
+
+raw-body@2, raw-body@2.3.2:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.2.tgz#bcd60c77d3eb93cde0050295c3f379389bc88f89"
+  dependencies:
+    bytes "3.0.0"
+    http-errors "1.6.2"
+    iconv-lite "0.4.19"
+    unpipe "1.0.0"
+
+rc@^1.1.7:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.5.tgz#275cd687f6e3b36cc756baa26dfee80a790301fd"
+  dependencies:
+    deep-extend "~0.4.0"
+    ini "~1.3.0"
+    minimist "^1.2.0"
+    strip-json-comments "~2.0.1"
+
+read-only-stream@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/read-only-stream/-/read-only-stream-2.0.0.tgz#2724fd6a8113d73764ac288d4386270c1dbf17f0"
+  dependencies:
+    readable-stream "^2.0.2"
+
+read-pkg-up@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
+  dependencies:
+    find-up "^1.0.0"
+    read-pkg "^1.0.0"
+
+read-pkg-up@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-2.0.0.tgz#6b72a8048984e0c41e79510fd5e9fa99b3b549be"
+  dependencies:
+    find-up "^2.0.0"
+    read-pkg "^2.0.0"
+
+read-pkg-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-3.0.0.tgz#3ed496685dba0f8fe118d0691dc51f4a1ff96f07"
+  dependencies:
+    find-up "^2.0.0"
+    read-pkg "^3.0.0"
+
+read-pkg@^1.0.0, read-pkg@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
+  dependencies:
+    load-json-file "^1.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^1.0.0"
+
+read-pkg@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-2.0.0.tgz#8ef1c0623c6a6db0dc6713c4bfac46332b2368f8"
+  dependencies:
+    load-json-file "^2.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^2.0.0"
+
+read-pkg@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-3.0.0.tgz#9cbc686978fee65d16c00e2b19c237fcf6e38389"
+  dependencies:
+    load-json-file "^4.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^3.0.0"
+
+readable-stream@1.1.x, "readable-stream@1.x >=1.1.9":
+  version "1.1.14"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
+readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3:
+  version "2.3.5"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.5.tgz#b4f85003a938cbb6ecbce2a124fb1012bd1a838d"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.3"
+    isarray "~1.0.0"
+    process-nextick-args "~2.0.0"
+    safe-buffer "~5.1.1"
+    string_decoder "~1.0.3"
+    util-deprecate "~1.0.1"
+
+readable-stream@~1.0.26:
+  version "1.0.34"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
+readable-stream@~2.0.0, readable-stream@~2.0.5:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "~1.0.0"
+    process-nextick-args "~1.0.6"
+    string_decoder "~0.10.x"
+    util-deprecate "~1.0.1"
+
+readdirp@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
+  dependencies:
+    graceful-fs "^4.1.2"
+    minimatch "^3.0.2"
+    readable-stream "^2.0.2"
+    set-immediate-shim "^1.0.1"
+
+rechoir@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  dependencies:
+    resolve "^1.1.6"
+
+redent@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
+  dependencies:
+    indent-string "^2.1.0"
+    strip-indent "^1.0.1"
+
+redent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/redent/-/redent-2.0.0.tgz#c1b2007b42d57eb1389079b3c8333639d5e1ccaa"
+  dependencies:
+    indent-string "^3.0.0"
+    strip-indent "^2.0.0"
+
+redis-commands@^1.2.0:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/redis-commands/-/redis-commands-1.3.5.tgz#4495889414f1e886261180b1442e7295602d83a2"
+
+redis-parser@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/redis-parser/-/redis-parser-2.6.0.tgz#52ed09dacac108f1a631c07e9b69941e7a19504b"
+
+redis@^2.7.1:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/redis/-/redis-2.8.0.tgz#202288e3f58c49f6079d97af7a10e1303ae14b02"
+  dependencies:
+    double-ended-queue "^2.1.0-0"
+    redis-commands "^1.2.0"
+    redis-parser "^2.6.0"
+
+regenerate@^1.2.1:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.3.tgz#0c336d3980553d755c39b586ae3b20aa49c82b7f"
+
+regenerator-runtime@^0.11.0:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
+
+regenerator-transform@^0.10.0:
+  version "0.10.1"
+  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.10.1.tgz#1e4996837231da8b7f3cf4114d71b5691a0680dd"
+  dependencies:
+    babel-runtime "^6.18.0"
+    babel-types "^6.19.0"
+    private "^0.1.6"
+
+regex-cache@^0.4.2:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.4.tgz#75bdc58a2a1496cec48a12835bc54c8d562336dd"
+  dependencies:
+    is-equal-shallow "^0.1.3"
+
+regex-not@^1.0.0, regex-not@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
+  dependencies:
+    extend-shallow "^3.0.2"
+    safe-regex "^1.1.0"
+
+regexpu-core@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-2.0.0.tgz#49d038837b8dcf8bfa5b9a42139938e6ea2ae240"
+  dependencies:
+    regenerate "^1.2.1"
+    regjsgen "^0.2.0"
+    regjsparser "^0.1.4"
+
+regjsgen@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.2.0.tgz#6c016adeac554f75823fe37ac05b92d5a4edb1f7"
+
+regjsparser@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.1.5.tgz#7ee8f84dc6fa792d3fd0ae228d24bd949ead205c"
+  dependencies:
+    jsesc "~0.5.0"
+
+remove-trailing-separator@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz#c24bce2a283adad5bc3f58e0d48249b92379d8ef"
+
+repeat-element@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
+
+repeat-string@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-0.2.2.tgz#c7a8d3236068362059a7e4651fc6884e8b1fb4ae"
+
+repeat-string@^1.5.2, repeat-string@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
+
+repeating@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/repeating/-/repeating-2.0.1.tgz#5214c53a926d3552707527fbab415dbc08d06dda"
+  dependencies:
+    is-finite "^1.0.0"
+
+request-progress@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/request-progress/-/request-progress-2.0.1.tgz#5d36bb57961c673aa5b788dbc8141fdf23b44e08"
+  dependencies:
+    throttleit "^1.0.0"
+
+request-promise-core@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.1.tgz#3eee00b2c5aa83239cfb04c5700da36f81cd08b6"
+  dependencies:
+    lodash "^4.13.1"
+
+request-promise-native@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/request-promise-native/-/request-promise-native-1.0.5.tgz#5281770f68e0c9719e5163fd3fab482215f4fda5"
+  dependencies:
+    request-promise-core "1.1.1"
+    stealthy-require "^1.1.0"
+    tough-cookie ">=2.3.3"
+
+request@2.42.0:
+  version "2.42.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.42.0.tgz#572bd0148938564040ac7ab148b96423a063304a"
+  dependencies:
+    bl "~0.9.0"
+    caseless "~0.6.0"
+    forever-agent "~0.5.0"
+    json-stringify-safe "~5.0.0"
+    mime-types "~1.0.1"
+    node-uuid "~1.4.0"
+    qs "~1.2.0"
+    tunnel-agent "~0.4.0"
+  optionalDependencies:
+    aws-sign2 "~0.5.0"
+    form-data "~0.1.0"
+    hawk "1.1.1"
+    http-signature "~0.10.0"
+    oauth-sign "~0.4.0"
+    stringstream "~0.0.4"
+    tough-cookie ">=0.12.0"
+
+request@2.75.x:
+  version "2.75.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.75.0.tgz#d2b8268a286da13eaa5d01adf5d18cc90f657d93"
+  dependencies:
+    aws-sign2 "~0.6.0"
+    aws4 "^1.2.1"
+    bl "~1.1.2"
+    caseless "~0.11.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.0"
+    forever-agent "~0.6.1"
+    form-data "~2.0.0"
+    har-validator "~2.0.6"
+    hawk "~3.1.3"
+    http-signature "~1.1.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.7"
+    node-uuid "~1.4.7"
+    oauth-sign "~0.8.1"
+    qs "~6.2.0"
+    stringstream "~0.0.4"
+    tough-cookie "~2.3.0"
+    tunnel-agent "~0.4.1"
+
+request@2.79.0:
+  version "2.79.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
+  dependencies:
+    aws-sign2 "~0.6.0"
+    aws4 "^1.2.1"
+    caseless "~0.11.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.0"
+    forever-agent "~0.6.1"
+    form-data "~2.1.1"
+    har-validator "~2.0.6"
+    hawk "~3.1.3"
+    http-signature "~1.1.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.7"
+    oauth-sign "~0.8.1"
+    qs "~6.3.0"
+    stringstream "~0.0.4"
+    tough-cookie "~2.3.0"
+    tunnel-agent "~0.4.1"
+    uuid "^3.0.0"
+
+request@2.81.0:
+  version "2.81.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
+  dependencies:
+    aws-sign2 "~0.6.0"
+    aws4 "^1.2.1"
+    caseless "~0.12.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.0"
+    forever-agent "~0.6.1"
+    form-data "~2.1.1"
+    har-validator "~4.2.1"
+    hawk "~3.1.3"
+    http-signature "~1.1.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.7"
+    oauth-sign "~0.8.1"
+    performance-now "^0.2.0"
+    qs "~6.4.0"
+    safe-buffer "^5.0.1"
+    stringstream "~0.0.4"
+    tough-cookie "~2.3.0"
+    tunnel-agent "^0.6.0"
+    uuid "^3.0.0"
+
+request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.83.0:
+  version "2.83.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.83.0.tgz#ca0b65da02ed62935887808e6f510381034e3356"
+  dependencies:
+    aws-sign2 "~0.7.0"
+    aws4 "^1.6.0"
+    caseless "~0.12.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.1"
+    forever-agent "~0.6.1"
+    form-data "~2.3.1"
+    har-validator "~5.0.3"
+    hawk "~6.0.2"
+    http-signature "~1.2.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.17"
+    oauth-sign "~0.8.2"
+    performance-now "^2.1.0"
+    qs "~6.5.1"
+    safe-buffer "^5.1.1"
+    stringstream "~0.0.5"
+    tough-cookie "~2.3.3"
+    tunnel-agent "^0.6.0"
+    uuid "^3.1.0"
+
+requestretry@^1.2.2:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/requestretry/-/requestretry-1.13.0.tgz#213ec1006eeb750e8b8ce54176283d15a8d55d94"
+  dependencies:
+    extend "^3.0.0"
+    lodash "^4.15.0"
+    request "^2.74.0"
+    when "^3.7.7"
+
+require-directory@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
+
+require-from-string@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.1.tgz#c545233e9d7da6616e9d59adfb39fc9f588676ff"
+
+require-main-filename@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
+
+require-relative@0.8.7:
+  version "0.8.7"
+  resolved "https://registry.yarnpkg.com/require-relative/-/require-relative-0.8.7.tgz#7999539fc9e047a37928fa196f8e1563dabd36de"
+
+require-uncached@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
+  dependencies:
+    caller-path "^0.1.0"
+    resolve-from "^1.0.0"
+
+requires-port@1.x.x:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+
+resolve-dir@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/resolve-dir/-/resolve-dir-0.1.1.tgz#b219259a5602fac5c5c496ad894a6e8cc430261e"
+  dependencies:
+    expand-tilde "^1.2.2"
+    global-modules "^0.2.3"
+
+resolve-from@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
+
+resolve-url@^0.2.1, resolve-url@~0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
+
+resolve@1.1.7, resolve@1.1.x:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
+
+resolve@^1.1.3, resolve@^1.1.4, resolve@^1.1.6, resolve@^1.3.3, resolve@^1.4.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.5.0.tgz#1f09acce796c9a762579f31b2c1cc4c3cddf9f36"
+  dependencies:
+    path-parse "^1.0.5"
+
+restore-cursor@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
+  dependencies:
+    exit-hook "^1.0.0"
+    onetime "^1.0.0"
+
+restore-cursor@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
+  dependencies:
+    onetime "^2.0.0"
+    signal-exit "^3.0.2"
+
+resumer@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/resumer/-/resumer-0.0.0.tgz#f1e8f461e4064ba39e82af3cdc2a8c893d076759"
+  dependencies:
+    through "~2.3.4"
+
+ret@~0.1.10:
+  version "0.1.15"
+  resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
+
+right-align@^0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
+  dependencies:
+    align-text "^0.1.1"
+
+right-pad@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
+
+rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1:
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
+  dependencies:
+    glob "^7.0.5"
+
+ripemd160@^2.0.0, ripemd160@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.1.tgz#0f4584295c53a3628af7e6d79aca21ce57d1c6e7"
+  dependencies:
+    hash-base "^2.0.0"
+    inherits "^2.0.1"
+
+rollup-plugin-alias@^1.3.1:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-alias/-/rollup-plugin-alias-1.4.0.tgz#120cba7c46621c03138f0ca6fd5dd2ade9872db9"
+  dependencies:
+    slash "^1.0.0"
+
+rollup-plugin-babel@^3.0.2:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-3.0.3.tgz#63adedc863130327512a4a9006efc2241c5b7c15"
+  dependencies:
+    rollup-pluginutils "^1.5.0"
+
+rollup-plugin-buble@^0.19.2:
+  version "0.19.2"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.19.2.tgz#c0590c7d3d475b5ed59f129764ec93710cc6e8dd"
+  dependencies:
+    buble "^0.19.2"
+    rollup-pluginutils "^2.0.1"
+
+rollup-plugin-commonjs@^8.0.0:
+  version "8.4.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.4.1.tgz#5c9cea2b2c3de322f5fbccd147e07ed5e502d7a0"
+  dependencies:
+    acorn "^5.2.1"
+    estree-walker "^0.5.0"
+    magic-string "^0.22.4"
+    resolve "^1.4.0"
+    rollup-pluginutils "^2.0.1"
+
+rollup-plugin-flow-no-whitespace@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-flow-no-whitespace/-/rollup-plugin-flow-no-whitespace-1.0.0.tgz#bd4ba1bcd99ad5b88234d72e6e2dacea9aa02d16"
+  dependencies:
+    flow-remove-types-no-whitespace "^1.0.3"
+    rollup-pluginutils "^1.5.2"
+
+rollup-plugin-node-resolve@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.2.0.tgz#31534952f3ab21f9473c1d092be7ed43937ea4d4"
+  dependencies:
+    builtin-modules "^2.0.0"
+    is-module "^1.0.0"
+    resolve "^1.1.6"
+
+rollup-plugin-replace@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-replace/-/rollup-plugin-replace-2.0.0.tgz#19074089c8ed57184b8cc64e967a03d095119277"
+  dependencies:
+    magic-string "^0.22.4"
+    minimatch "^3.0.2"
+    rollup-pluginutils "^2.0.1"
+
+rollup-pluginutils@^1.5.0, rollup-pluginutils@^1.5.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz#1e156e778f94b7255bfa1b3d0178be8f5c552408"
+  dependencies:
+    estree-walker "^0.2.1"
+    minimatch "^3.0.2"
+
+rollup-pluginutils@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.0.1.tgz#7ec95b3573f6543a46a6461bd9a7c544525d0fc0"
+  dependencies:
+    estree-walker "^0.3.0"
+    micromatch "^2.3.11"
+
+rollup-watch@^4.0.0:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/rollup-watch/-/rollup-watch-4.3.1.tgz#5aa1eaeab787addf368905d102b39d6fc5ce4a8b"
+  dependencies:
+    chokidar "^1.7.0"
+    require-relative "0.8.7"
+    rollup-pluginutils "^2.0.1"
+
+rollup@^0.54.1:
+  version "0.54.1"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.54.1.tgz#415a5d999421502646cf54b873fc4ce1a7393970"
+
+run-async@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
+  dependencies:
+    is-promise "^2.1.0"
+
+rx-lite-aggregates@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
+  dependencies:
+    rx-lite "*"
+
+rx-lite@*, rx-lite@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
+
+rx@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
+
+rxjs@^5.4.2:
+  version "5.5.6"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.6.tgz#e31fb96d6fd2ff1fd84bcea8ae9c02d007179c02"
+  dependencies:
+    symbol-observable "1.0.1"
+
+safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
+
+safe-regex@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
+  dependencies:
+    ret "~0.1.10"
+
+sauce-connect-launcher@^1.2.2:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/sauce-connect-launcher/-/sauce-connect-launcher-1.2.3.tgz#d2f931ad7ae8fdabf1968a440e7b20417aca7f86"
+  dependencies:
+    adm-zip "~0.4.3"
+    async "^2.1.2"
+    https-proxy-agent "~1.0.0"
+    lodash "^4.16.6"
+    rimraf "^2.5.4"
+
+saucelabs@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.4.0.tgz#b934a9af9da2874b3f40aae1fcde50a4466f5f38"
+  dependencies:
+    https-proxy-agent "^1.0.0"
+
+sax@^1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
+
+schema-utils@^0.4.5:
+  version "0.4.5"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.5.tgz#21836f0608aac17b78f9e3e24daff14a5ca13a3e"
+  dependencies:
+    ajv "^6.1.0"
+    ajv-keywords "^3.1.0"
+
+selenium-server@^2.53.1:
+  version "2.53.1"
+  resolved "https://registry.yarnpkg.com/selenium-server/-/selenium-server-2.53.1.tgz#d681528812f3c2e0531a6b7e613e23bb02cce8a6"
+
+"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.5.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
+
+semver@~5.0.1:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.0.3.tgz#77466de589cd5d3c95f138aa78bc569a3cb5d27a"
+
+serialize-javascript@^1.3.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.4.0.tgz#7c958514db6ac2443a8abc062dc9f7886a7f6005"
+
+set-blocking@^2.0.0, set-blocking@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
+
+set-getter@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/set-getter/-/set-getter-0.1.0.tgz#d769c182c9d5a51f409145f2fba82e5e86e80376"
+  dependencies:
+    to-object-path "^0.3.0"
+
+set-immediate-shim@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
+
+set-value@^0.4.3:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/set-value/-/set-value-0.4.3.tgz#7db08f9d3d22dc7f78e53af3c3bf4666ecdfccf1"
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-extendable "^0.1.1"
+    is-plain-object "^2.0.1"
+    to-object-path "^0.3.0"
+
+set-value@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/set-value/-/set-value-2.0.0.tgz#71ae4a88f0feefbbf52d1ea604f3fb315ebb6274"
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-extendable "^0.1.1"
+    is-plain-object "^2.0.3"
+    split-string "^3.0.1"
+
+setimmediate@^1.0.4:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
+
+setprototypeof@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.0.3.tgz#66567e37043eeb4f04d91bd658c0cbefb55b8e04"
+
+sha.js@^2.4.0, sha.js@^2.4.8, sha.js@~2.4.4:
+  version "2.4.10"
+  resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.10.tgz#b1fde5cd7d11a5626638a07c604ab909cfa31f9b"
+  dependencies:
+    inherits "^2.0.1"
+    safe-buffer "^5.0.1"
+
+shasum@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/shasum/-/shasum-1.0.2.tgz#e7012310d8f417f4deb5712150e5678b87ae565f"
+  dependencies:
+    json-stable-stringify "~0.0.0"
+    sha.js "~2.4.4"
+
+shebang-command@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
+  dependencies:
+    shebang-regex "^1.0.0"
+
+shebang-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
+
+shell-quote@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/shell-quote/-/shell-quote-1.6.1.tgz#f4781949cce402697127430ea3b3c5476f481767"
+  dependencies:
+    array-filter "~0.0.0"
+    array-map "~0.0.0"
+    array-reduce "~0.0.0"
+    jsonify "~0.0.0"
+
+shelljs@0.7.6:
+  version "0.7.6"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.6.tgz#379cccfb56b91c8601e4793356eb5382924de9ad"
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
+shelljs@^0.8.1:
+  version "0.8.1"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.1.tgz#729e038c413a2254c4078b95ed46e0397154a9f1"
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
+signal-exit@^3.0.0, signal-exit@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
+
+slack-node@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/slack-node/-/slack-node-0.2.0.tgz#de4b8dddaa8b793f61dbd2938104fdabf37dfa30"
+  dependencies:
+    requestretry "^1.2.2"
+
+slash@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
+
+slice-ansi@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
+
+slice-ansi@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+
+smart-buffer@^1.0.13, smart-buffer@^1.0.4:
+  version "1.1.15"
+  resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-1.1.15.tgz#7f114b5b65fab3e2a35aa775bb12f0d1c649bf16"
+
+smtp-connection@2.12.0:
+  version "2.12.0"
+  resolved "https://registry.yarnpkg.com/smtp-connection/-/smtp-connection-2.12.0.tgz#d76ef9127cb23c2259edb1e8349c2e8d5e2d74c1"
+  dependencies:
+    httpntlm "1.6.1"
+    nodemailer-shared "1.1.0"
+
+snapdragon-node@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
+  dependencies:
+    define-property "^1.0.0"
+    isobject "^3.0.0"
+    snapdragon-util "^3.0.1"
+
+snapdragon-util@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/snapdragon-util/-/snapdragon-util-3.0.1.tgz#f956479486f2acd79700693f6f7b805e45ab56e2"
+  dependencies:
+    kind-of "^3.2.0"
+
+snapdragon@^0.8.1:
+  version "0.8.1"
+  resolved "https://registry.yarnpkg.com/snapdragon/-/snapdragon-0.8.1.tgz#e12b5487faded3e3dea0ac91e9400bf75b401370"
+  dependencies:
+    base "^0.11.1"
+    debug "^2.2.0"
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    map-cache "^0.2.2"
+    source-map "^0.5.6"
+    source-map-resolve "^0.5.0"
+    use "^2.0.0"
+
+sntp@0.2.x:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/sntp/-/sntp-0.2.4.tgz#fb885f18b0f3aad189f824862536bceeec750900"
+  dependencies:
+    hoek "0.9.x"
+
+sntp@1.x.x:
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/sntp/-/sntp-1.0.9.tgz#6541184cc90aeea6c6e7b35e2659082443c66198"
+  dependencies:
+    hoek "2.x.x"
+
+sntp@2.x.x:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/sntp/-/sntp-2.1.0.tgz#2c6cec14fedc2222739caf9b5c3d85d1cc5a2cc8"
+  dependencies:
+    hoek "4.x.x"
+
+socket.io-adapter@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz#2a805e8a14d6372124dd9159ad4502f8cb07f06b"
+
+socket.io-client@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.0.4.tgz#0918a552406dc5e540b380dcd97afc4a64332f8e"
+  dependencies:
+    backo2 "1.0.2"
+    base64-arraybuffer "0.1.5"
+    component-bind "1.0.0"
+    component-emitter "1.2.1"
+    debug "~2.6.4"
+    engine.io-client "~3.1.0"
+    has-cors "1.1.0"
+    indexof "0.0.1"
+    object-component "0.0.3"
+    parseqs "0.0.5"
+    parseuri "0.0.5"
+    socket.io-parser "~3.1.1"
+    to-array "0.1.4"
+
+socket.io-parser@~3.1.1:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-3.1.3.tgz#ed2da5ee79f10955036e3da413bfd7f1e4d86c8e"
+  dependencies:
+    component-emitter "1.2.1"
+    debug "~3.1.0"
+    has-binary2 "~1.0.2"
+    isarray "2.0.1"
+
+socket.io@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.0.4.tgz#c1a4590ceff87ecf13c72652f046f716b29e6014"
+  dependencies:
+    debug "~2.6.6"
+    engine.io "~3.1.0"
+    socket.io-adapter "~1.1.0"
+    socket.io-client "2.0.4"
+    socket.io-parser "~3.1.1"
+
+socks-proxy-agent@2:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/socks-proxy-agent/-/socks-proxy-agent-2.1.1.tgz#86ebb07193258637870e13b7bd99f26c663df3d3"
+  dependencies:
+    agent-base "2"
+    extend "3"
+    socks "~1.1.5"
+
+socks@1.1.9:
+  version "1.1.9"
+  resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.9.tgz#628d7e4d04912435445ac0b6e459376cb3e6d691"
+  dependencies:
+    ip "^1.1.2"
+    smart-buffer "^1.0.4"
+
+socks@~1.1.5:
+  version "1.1.10"
+  resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.10.tgz#5b8b7fc7c8f341c53ed056e929b7bf4de8ba7b5a"
+  dependencies:
+    ip "^1.1.4"
+    smart-buffer "^1.0.13"
+
+source-list-map@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.0.tgz#aaa47403f7b245a92fbc97ea08f250d6087ed085"
+
+source-map-resolve@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.3.1.tgz#610f6122a445b8dd51535a2a71b783dfc1248761"
+  dependencies:
+    atob "~1.1.0"
+    resolve-url "~0.2.1"
+    source-map-url "~0.3.0"
+    urix "~0.1.0"
+
+source-map-resolve@^0.5.0:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.1.tgz#7ad0f593f2281598e854df80f19aae4b92d7a11a"
+  dependencies:
+    atob "^2.0.0"
+    decode-uri-component "^0.2.0"
+    resolve-url "^0.2.1"
+    source-map-url "^0.4.0"
+    urix "^0.1.0"
+
+source-map-support@^0.4.15:
+  version "0.4.18"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.18.tgz#0286a6de8be42641338594e97ccea75f0a2c585f"
+  dependencies:
+    source-map "^0.5.6"
+
+source-map-support@^0.5.0:
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.3.tgz#2b3d5fff298cfa4d1afd7d4352d569e9a0158e76"
+  dependencies:
+    source-map "^0.6.0"
+
+source-map-url@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
+
+source-map-url@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.3.0.tgz#7ecaf13b57bcd09da8a40c5d269db33799d4aaf9"
+
+source-map@^0.1.38:
+  version "0.1.43"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.43.tgz#c24bc146ca517c1471f5dacbe2571b2b7f9e3346"
+  dependencies:
+    amdefine ">=0.0.4"
+
+source-map@^0.4.4:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
+  dependencies:
+    amdefine ">=0.0.4"
+
+source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.1, source-map@~0.5.3:
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
+
+source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+
+source-map@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
+  dependencies:
+    amdefine ">=0.0.4"
+
+spawn-sync@^1.0.15:
+  version "1.0.15"
+  resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
+  dependencies:
+    concat-stream "^1.4.7"
+    os-shim "^0.1.2"
+
+spdx-correct@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.0.0.tgz#05a5b4d7153a195bc92c3c425b69f3b2a9524c82"
+  dependencies:
+    spdx-expression-parse "^3.0.0"
+    spdx-license-ids "^3.0.0"
+
+spdx-exceptions@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/spdx-exceptions/-/spdx-exceptions-2.1.0.tgz#2c7ae61056c714a5b9b9b2b2af7d311ef5c78fe9"
+
+spdx-expression-parse@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz#99e119b7a5da00e05491c9fa338b7904823b41d0"
+  dependencies:
+    spdx-exceptions "^2.1.0"
+    spdx-license-ids "^3.0.0"
+
+spdx-license-ids@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.0.tgz#7a7cd28470cc6d3a1cfe6d66886f6bc430d3ac87"
+
+split-string@^3.0.1, split-string@^3.0.2:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/split-string/-/split-string-3.1.0.tgz#7cb09dda3a86585705c64b39a6466038682e8fe2"
+  dependencies:
+    extend-shallow "^3.0.0"
+
+split2@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/split2/-/split2-2.2.0.tgz#186b2575bcf83e85b7d18465756238ee4ee42493"
+  dependencies:
+    through2 "^2.0.2"
+
+split@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/split/-/split-1.0.1.tgz#605bd9be303aa59fb35f9229fbea0ddec9ea07d9"
+  dependencies:
+    through "2"
+
+split@~0.2.10:
+  version "0.2.10"
+  resolved "https://registry.yarnpkg.com/split/-/split-0.2.10.tgz#67097c601d697ce1368f418f06cd201cf0521a57"
+  dependencies:
+    through "2"
+
+sprintf-js@^1.0.3:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.1.tgz#36be78320afe5801f6cea3ee78b6e5aab940ea0c"
+
+sprintf-js@~1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
+
+sshpk@^1.7.0:
+  version "1.13.1"
+  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.13.1.tgz#512df6da6287144316dc4c18fe1cf1d940739be3"
+  dependencies:
+    asn1 "~0.2.3"
+    assert-plus "^1.0.0"
+    dashdash "^1.12.0"
+    getpass "^0.1.1"
+  optionalDependencies:
+    bcrypt-pbkdf "^1.0.0"
+    ecc-jsbn "~0.1.1"
+    jsbn "~0.1.0"
+    tweetnacl "~0.14.0"
+
+stack-utils@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
+
+staged-git-files@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.0.tgz#1a9bb131c1885601023c7aaddd3d54c22142c526"
+
+static-extend@^0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"
+  dependencies:
+    define-property "^0.2.5"
+    object-copy "^0.1.0"
+
+"statuses@>= 1.3.1 < 2":
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
+
+statuses@~1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.3.1.tgz#faf51b9eb74aaef3b3acf4ad5f61abf24cb7b93e"
+
+stealthy-require@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
+
+stream-browserify@^2.0.0, stream-browserify@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
+  dependencies:
+    inherits "~2.0.1"
+    readable-stream "^2.0.2"
+
+stream-combiner2@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/stream-combiner2/-/stream-combiner2-1.1.1.tgz#fb4d8a1420ea362764e21ad4780397bebcb41cbe"
+  dependencies:
+    duplexer2 "~0.1.0"
+    readable-stream "^2.0.2"
+
+stream-combiner@~0.0.2:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/stream-combiner/-/stream-combiner-0.0.4.tgz#4d5e433c185261dde623ca3f44c586bcf5c4ad14"
+  dependencies:
+    duplexer "~0.1.1"
+
+stream-http@^2.0.0, stream-http@^2.7.2:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.8.0.tgz#fd86546dac9b1c91aff8fc5d287b98fafb41bc10"
+  dependencies:
+    builtin-status-codes "^3.0.0"
+    inherits "^2.0.1"
+    readable-stream "^2.3.3"
+    to-arraybuffer "^1.0.0"
+    xtend "^4.0.0"
+
+stream-splicer@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/stream-splicer/-/stream-splicer-2.0.0.tgz#1b63be438a133e4b671cc1935197600175910d83"
+  dependencies:
+    inherits "^2.0.1"
+    readable-stream "^2.0.2"
+
+stream-to-observable@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/stream-to-observable/-/stream-to-observable-0.2.0.tgz#59d6ea393d87c2c0ddac10aa0d561bc6ba6f0e10"
+  dependencies:
+    any-observable "^0.2.0"
+
+streamroller@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-0.7.0.tgz#a1d1b7cf83d39afb0d63049a5acbf93493bdf64b"
+  dependencies:
+    date-format "^1.2.0"
+    debug "^3.1.0"
+    mkdirp "^0.5.1"
+    readable-stream "^2.3.0"
+
+string-width@^1.0.1, string-width@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  dependencies:
+    code-point-at "^1.0.0"
+    is-fullwidth-code-point "^1.0.0"
+    strip-ansi "^3.0.0"
+
+string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^4.0.0"
+
+string_decoder@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.0.tgz#384f322ee8a848e500effde99901bba849c5d403"
+  dependencies:
+    safe-buffer "~5.1.0"
+
+string_decoder@~0.10.x:
+  version "0.10.31"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
+
+string_decoder@~1.0.0, string_decoder@~1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.3.tgz#0fc67d7c141825de94282dd536bec6b9bce860ab"
+  dependencies:
+    safe-buffer "~5.1.0"
+
+stringify-object@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/stringify-object/-/stringify-object-3.2.2.tgz#9853052e5a88fb605a44cd27445aa257ad7ffbcd"
+  dependencies:
+    get-own-enumerable-property-symbols "^2.0.1"
+    is-obj "^1.0.1"
+    is-regexp "^1.0.0"
+
+stringstream@~0.0.4, stringstream@~0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
+
+strip-ansi@^3.0.0, strip-ansi@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  dependencies:
+    ansi-regex "^2.0.0"
+
+strip-ansi@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
+  dependencies:
+    ansi-regex "^3.0.0"
+
+strip-bom@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
+  dependencies:
+    is-utf8 "^0.2.0"
+
+strip-bom@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
+
+strip-eof@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
+
+strip-indent@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-1.0.1.tgz#0c7962a6adefa7bbd4ac366460a638552ae1a0a2"
+  dependencies:
+    get-stdin "^4.0.1"
+
+strip-indent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-2.0.0.tgz#5ef8db295d01e6ed6cbf7aab96998d7822527b68"
+
+strip-json-comments@2.0.1, strip-json-comments@~2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
+
+subarg@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"
+  dependencies:
+    minimist "^1.1.0"
+
+supports-color@3.1.2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.1.2.tgz#72a262894d9d408b956ca05ff37b2ed8a6e2a2d5"
+  dependencies:
+    has-flag "^1.0.0"
+
+supports-color@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
+
+supports-color@^3.1.0:
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.2.3.tgz#65ac0504b3954171d8a64946b2ae3cbb8a5f54f6"
+  dependencies:
+    has-flag "^1.0.0"
+
+supports-color@^4.2.1:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
+  dependencies:
+    has-flag "^2.0.0"
+
+supports-color@^5.3.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.3.0.tgz#5b24ac15db80fa927cf5227a4a33fd3c4c7676c0"
+  dependencies:
+    has-flag "^3.0.0"
+
+symbol-observable@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
+
+symbol-observable@^0.2.2:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-0.2.4.tgz#95a83db26186d6af7e7a18dbd9760a2f86d08f40"
+
+symbol-tree@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
+
+syntax-error@^1.1.1:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/syntax-error/-/syntax-error-1.4.0.tgz#2d9d4ff5c064acb711594a3e3b95054ad51d907c"
+  dependencies:
+    acorn-node "^1.2.0"
+
+table@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
+  dependencies:
+    ajv "^5.2.3"
+    ajv-keywords "^2.1.0"
+    chalk "^2.1.0"
+    lodash "^4.17.4"
+    slice-ansi "1.0.0"
+    string-width "^2.1.1"
+
+tapable@^0.2.7:
+  version "0.2.8"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
+
+tape@2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/tape/-/tape-2.3.0.tgz#0dfeec709227fbcc9170abe7f046962b271431db"
+  dependencies:
+    deep-equal "~0.1.0"
+    defined "~0.0.0"
+    inherits "~2.0.1"
+    jsonify "~0.0.0"
+    resumer "~0.0.0"
+    split "~0.2.10"
+    stream-combiner "~0.0.2"
+    through "~2.3.4"
+
+tar-pack@^3.4.0:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
+  dependencies:
+    debug "^2.2.0"
+    fstream "^1.0.10"
+    fstream-ignore "^1.0.5"
+    once "^1.3.3"
+    readable-stream "^2.1.4"
+    rimraf "^2.5.1"
+    tar "^2.2.1"
+    uid-number "^0.0.6"
+
+tar-stream@^1.5.0:
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.5.5.tgz#5cad84779f45c83b1f2508d96b09d88c7218af55"
+  dependencies:
+    bl "^1.0.0"
+    end-of-stream "^1.0.0"
+    readable-stream "^2.0.0"
+    xtend "^4.0.0"
+
+tar@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
+  dependencies:
+    block-stream "*"
+    fstream "^1.0.2"
+    inherits "2"
+
+test-exclude@^4.1.1:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.2.0.tgz#07e3613609a362c74516a717515e13322ab45b3c"
+  dependencies:
+    arrify "^1.0.1"
+    micromatch "^2.3.11"
+    object-assign "^4.1.0"
+    read-pkg-up "^1.0.1"
+    require-main-filename "^1.0.1"
+
+text-extensions@^1.0.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.7.0.tgz#faaaba2625ed746d568a23e4d0aacd9bf08a8b39"
+
+text-table@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
+
+throttleit@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/throttleit/-/throttleit-1.0.0.tgz#9e785836daf46743145a5984b6268d828528ac6c"
+
+through2@^2.0.0, through2@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
+  dependencies:
+    readable-stream "^2.1.5"
+    xtend "~4.0.1"
+
+through@2, "through@>=2.2.7 <3", through@^2.3.6, through@~2.3.4:
+  version "2.3.8"
+  resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+
+thunkify@~2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/thunkify/-/thunkify-2.1.2.tgz#faa0e9d230c51acc95ca13a361ac05ca7e04553d"
+
+time-stamp@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.0.0.tgz#95c6a44530e15ba8d6f4a3ecb8c3a3fac46da357"
+
+timers-browserify@^1.0.1:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-1.4.2.tgz#c9c58b575be8407375cb5e2462dacee74359f41d"
+  dependencies:
+    process "~0.11.0"
+
+timers-browserify@^2.0.4:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-2.0.6.tgz#241e76927d9ca05f4d959819022f5b3664b64bae"
+  dependencies:
+    setimmediate "^1.0.4"
+
+timespan@2.3.x:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/timespan/-/timespan-2.3.0.tgz#4902ce040bd13d845c8f59b27e9d59bad6f39929"
+
+tmp@0.0.33, tmp@0.0.x, tmp@^0.0.33:
+  version "0.0.33"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
+  dependencies:
+    os-tmpdir "~1.0.2"
+
+tmp@^0.0.29:
+  version "0.0.29"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.29.tgz#f25125ff0dd9da3ccb0c2dd371ee1288bb9128c0"
+  dependencies:
+    os-tmpdir "~1.0.1"
+
+to-array@0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.4.tgz#17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890"
+
+to-arraybuffer@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
+
+to-fast-properties@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
+
+to-fast-properties@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
+
+to-object-path@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
+  dependencies:
+    kind-of "^3.0.2"
+
+to-regex-range@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-2.1.1.tgz#7c80c17b9dfebe599e27367e0d4dd5590141db38"
+  dependencies:
+    is-number "^3.0.0"
+    repeat-string "^1.6.1"
+
+to-regex@^3.0.1:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/to-regex/-/to-regex-3.0.2.tgz#13cfdd9b336552f30b51f33a8ae1b42a7a7599ce"
+  dependencies:
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    regex-not "^1.0.2"
+    safe-regex "^1.1.0"
+
+tough-cookie@>=0.12.0, tough-cookie@>=2.3.3, tough-cookie@^2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
+  version "2.3.4"
+  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
+  dependencies:
+    punycode "^1.4.1"
+
+tr46@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-1.0.1.tgz#a8b13fd6bfd2489519674ccde55ba3693b706d09"
+  dependencies:
+    punycode "^2.1.0"
+
+trim-newlines@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
+
+trim-newlines@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-2.0.0.tgz#b403d0b91be50c331dfc4b82eeceb22c3de16d20"
+
+trim-off-newlines@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/trim-off-newlines/-/trim-off-newlines-1.0.1.tgz#9f9ba9d9efa8764c387698bcbfeb2c848f11adb3"
+
+trim-right@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
+
+tsscmp@~1.0.0:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.5.tgz#7dc4a33af71581ab4337da91d85ca5427ebd9a97"
+
+tty-browserify@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
+
+tty-browserify@~0.0.0:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.1.tgz#3f05251ee17904dfd0677546670db9651682b811"
+
+tunnel-agent@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
+  dependencies:
+    safe-buffer "^5.0.1"
+
+tunnel-agent@~0.4.0, tunnel-agent@~0.4.1:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
+
+tweetnacl@^0.14.3, tweetnacl@~0.14.0:
+  version "0.14.5"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
+
+type-check@~0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
+  dependencies:
+    prelude-ls "~1.1.2"
+
+type-detect@0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-0.1.1.tgz#0ba5ec2a885640e470ea4e8505971900dac58822"
+
+type-is@~1.6.15:
+  version "1.6.16"
+  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.16.tgz#f89ce341541c672b25ee7ae3c73dee3b2be50194"
+  dependencies:
+    media-typer "0.3.0"
+    mime-types "~2.1.18"
+
+typedarray@^0.0.6, typedarray@~0.0.5:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
+
+typescript@^2.7.1:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.7.2.tgz#2d615a1ef4aee4f574425cdff7026edf81919836"
+
+uglify-js@^2.6, uglify-js@^2.8.29:
+  version "2.8.29"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
+  dependencies:
+    source-map "~0.5.1"
+    yargs "~3.10.0"
+  optionalDependencies:
+    uglify-to-browserify "~1.0.0"
+
+uglify-js@^3.0.15:
+  version "3.3.13"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.3.13.tgz#8a1a89eeb16e2d6a66b0db2b04cb871af3c669cf"
+  dependencies:
+    commander "~2.14.1"
+    source-map "~0.6.1"
+
+uglify-to-browserify@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
+
+uglifyjs-webpack-plugin@^0.4.6:
+  version "0.4.6"
+  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-0.4.6.tgz#b951f4abb6bd617e66f63eb891498e391763e309"
+  dependencies:
+    source-map "^0.5.6"
+    uglify-js "^2.8.29"
+    webpack-sources "^1.0.1"
+
+uid-number@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
+
+ultron@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
+
+umd@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/umd/-/umd-3.0.1.tgz#8ae556e11011f63c2596708a8837259f01b3d60e"
+
+underscore.string@3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.4.tgz#2c2a3f9f83e64762fdc45e6ceac65142864213db"
+  dependencies:
+    sprintf-js "^1.0.3"
+    util-deprecate "^1.0.2"
+
+underscore@~1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.7.0.tgz#6bbaf0877500d36be34ecaa584e0db9fef035209"
+
+union-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
+  dependencies:
+    arr-union "^3.1.0"
+    get-value "^2.0.6"
+    is-extendable "^0.1.1"
+    set-value "^0.4.3"
+
+union@~0.4.3:
+  version "0.4.6"
+  resolved "https://registry.yarnpkg.com/union/-/union-0.4.6.tgz#198fbdaeba254e788b0efcb630bc11f24a2959e0"
+  dependencies:
+    qs "~2.3.3"
+
+unpipe@1.0.0, unpipe@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
+
+unset-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
+  dependencies:
+    has-value "^0.3.1"
+    isobject "^3.0.0"
+
+upath@^1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/upath/-/upath-1.0.4.tgz#ee2321ba0a786c50973db043a50b7bcba822361d"
+
+urix@^0.1.0, urix@~0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
+
+url-join@^2.0.2:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
+
+url@^0.11.0, url@~0.11.0:
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
+  dependencies:
+    punycode "1.3.2"
+    querystring "0.2.0"
+
+urlgrey@0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/urlgrey/-/urlgrey-0.4.0.tgz#f065357040fb35c3b311d4e5dc36484d96dbea06"
+  dependencies:
+    tape "2.3.0"
+
+use@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/use/-/use-2.0.2.tgz#ae28a0d72f93bf22422a18a2e379993112dec8e8"
+  dependencies:
+    define-property "^0.2.5"
+    isobject "^3.0.0"
+    lazy-cache "^2.0.2"
+
+useragent@^2.1.12:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/useragent/-/useragent-2.3.0.tgz#217f943ad540cb2128658ab23fc960f6a88c9972"
+  dependencies:
+    lru-cache "4.1.x"
+    tmp "0.0.x"
+
+util-deprecate@^1.0.2, util-deprecate@~1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
+
+util@0.10.3, util@^0.10.3, util@~0.10.1:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"
+  dependencies:
+    inherits "2.0.1"
+
+utils-merge@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+
+uuid@^3.0.0, uuid@^3.1.0:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
+
+uws@~9.14.0:
+  version "9.14.0"
+  resolved "https://registry.yarnpkg.com/uws/-/uws-9.14.0.tgz#fac8386befc33a7a3705cbd58dc47b430ca4dd95"
+
+validate-npm-package-license@^3.0.1:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz#81643bcbef1bdfecd4623793dc4648948ba98338"
+  dependencies:
+    spdx-correct "^3.0.0"
+    spdx-expression-parse "^3.0.0"
+
+vargs@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/vargs/-/vargs-0.1.0.tgz#6b6184da6520cc3204ce1b407cac26d92609ebff"
+
+verror@1.10.0:
+  version "1.10.0"
+  resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
+  dependencies:
+    assert-plus "^1.0.0"
+    core-util-is "1.0.2"
+    extsprintf "^1.2.0"
+
+vlq@^0.2.1:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/vlq/-/vlq-0.2.3.tgz#8f3e4328cf63b1540c0d67e1b2778386f8975b26"
+
+vlq@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/vlq/-/vlq-1.0.0.tgz#8101be90843422954c2b13eb27f2f3122bdcc806"
+
+vm-browserify@0.0.4, vm-browserify@~0.0.1:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
+  dependencies:
+    indexof "0.0.1"
+
+void-elements@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
+
+w3c-hr-time@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz#82ac2bff63d950ea9e3189a58a65625fedf19045"
+  dependencies:
+    browser-process-hrtime "^0.1.2"
+
+walkdir@^0.0.11:
+  version "0.0.11"
+  resolved "https://registry.yarnpkg.com/walkdir/-/walkdir-0.0.11.tgz#a16d025eb931bd03b52f308caed0f40fcebe9532"
+
+watchpack@^1.4.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.5.0.tgz#231e783af830a22f8966f65c4c4bacc814072eed"
+  dependencies:
+    chokidar "^2.0.2"
+    graceful-fs "^4.1.2"
+    neo-async "^2.5.0"
+
+wd@^1.4.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/wd/-/wd-1.6.0.tgz#29f6de1531302a0c553478eeff16ae1e1639b472"
+  dependencies:
+    archiver "1.3.0"
+    async "2.0.1"
+    lodash "4.16.2"
+    mkdirp "^0.5.1"
+    q "1.4.1"
+    request "2.79.0"
+    underscore.string "3.3.4"
+    vargs "0.1.0"
+
+webidl-conversions@^4.0.1, webidl-conversions@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
+
+webpack-dev-middleware@^1.12.0:
+  version "1.12.2"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz#f8fc1120ce3b4fc5680ceecb43d777966b21105e"
+  dependencies:
+    memory-fs "~0.4.1"
+    mime "^1.5.0"
+    path-is-absolute "^1.0.0"
+    range-parser "^1.0.3"
+    time-stamp "^2.0.0"
+
+webpack-sources@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
+  dependencies:
+    source-list-map "^2.0.0"
+    source-map "~0.6.1"
+
+webpack@^3.11.0:
+  version "3.11.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.11.0.tgz#77da451b1d7b4b117adaf41a1a93b5742f24d894"
+  dependencies:
+    acorn "^5.0.0"
+    acorn-dynamic-import "^2.0.0"
+    ajv "^6.1.0"
+    ajv-keywords "^3.1.0"
+    async "^2.1.2"
+    enhanced-resolve "^3.4.0"
+    escope "^3.6.0"
+    interpret "^1.0.0"
+    json-loader "^0.5.4"
+    json5 "^0.5.1"
+    loader-runner "^2.3.0"
+    loader-utils "^1.1.0"
+    memory-fs "~0.4.1"
+    mkdirp "~0.5.0"
+    node-libs-browser "^2.0.0"
+    source-map "^0.5.3"
+    supports-color "^4.2.1"
+    tapable "^0.2.7"
+    uglifyjs-webpack-plugin "^0.4.6"
+    watchpack "^1.4.0"
+    webpack-sources "^1.0.1"
+    yargs "^8.0.2"
+
+weex-js-runtime@^0.23.6:
+  version "0.23.7"
+  resolved "https://registry.yarnpkg.com/weex-js-runtime/-/weex-js-runtime-0.23.7.tgz#c9d3427f2debf1d638ab4e41bb4f0e539a51915c"
+
+weex-styler@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/weex-styler/-/weex-styler-0.3.0.tgz#5d614c9cf6d8cec0e23231a92955b722556bfe1a"
+  dependencies:
+    css "~2.2.1"
+
+whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz#57c235bc8657e914d24e1a397d3c82daee0a6ba3"
+  dependencies:
+    iconv-lite "0.4.19"
+
+whatwg-url@^6.4.0:
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-6.4.0.tgz#08fdf2b9e872783a7a1f6216260a1d66cc722e08"
+  dependencies:
+    lodash.sortby "^4.7.0"
+    tr46 "^1.0.0"
+    webidl-conversions "^4.0.1"
+
+when@^3.7.7:
+  version "3.7.8"
+  resolved "https://registry.yarnpkg.com/when/-/when-3.7.8.tgz#c7130b6a7ea04693e842cdc9e7a1f2aa39a39f82"
+
+which-module@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
+
+which@^1.1.1, which@^1.2.1, which@^1.2.10, which@^1.2.12, which@^1.2.9:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
+  dependencies:
+    isexe "^2.0.0"
+
+wide-align@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
+  dependencies:
+    string-width "^1.0.2"
+
+window-size@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
+
+word-wrap@^1.0.3:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
+
+wordwrap@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
+
+wordwrap@^1.0.0, wordwrap@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+
+wordwrap@~0.0.2:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
+
+wrap-ansi@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+
+wrappy@1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
+
+write@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
+  dependencies:
+    mkdirp "^0.5.1"
+
+ws@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-4.1.0.tgz#a979b5d7d4da68bf54efe0408967c324869a7289"
+  dependencies:
+    async-limiter "~1.0.0"
+    safe-buffer "~5.1.0"
+
+ws@~3.3.1:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
+  dependencies:
+    async-limiter "~1.0.0"
+    safe-buffer "~5.1.0"
+    ultron "~1.1.0"
+
+xml-name-validator@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
+
+xmlhttprequest-ssl@~1.5.4:
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz#c2876b06168aadc40e57d97e81191ac8f4398b3e"
+
+xregexp@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-2.0.0.tgz#52a63e56ca0b84a7f3a5f3d61872f126ad7a5943"
+
+xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
+
+y18n@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+
+yallist@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
+
+yargs-parser@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
+  dependencies:
+    camelcase "^4.1.0"
+
+yargs@^8.0.2:
+  version "8.0.2"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
+  dependencies:
+    camelcase "^4.1.0"
+    cliui "^3.2.0"
+    decamelize "^1.1.1"
+    get-caller-file "^1.0.1"
+    os-locale "^2.0.0"
+    read-pkg-up "^2.0.0"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
+    y18n "^3.2.1"
+    yargs-parser "^7.0.0"
+
+yargs@~3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
+  dependencies:
+    camelcase "^1.0.2"
+    cliui "^2.1.0"
+    decamelize "^1.0.0"
+    window-size "0.1.0"
+
+yauzl@2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"
+  dependencies:
+    fd-slicer "~1.0.1"
+
+yeast@0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
+
+yorkie@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/yorkie/-/yorkie-1.0.3.tgz#5c05db48c012def99c29b79685b6ba2e40c8c671"
+  dependencies:
+    execa "^0.8.0"
+    is-ci "^1.0.10"
+    normalize-path "^1.0.0"
+    strip-indent "^2.0.0"
+
+zip-stream@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04"
+  dependencies:
+    archiver-utils "^1.3.0"
+    compress-commons "^1.2.0"
+    lodash "^4.8.0"
+    readable-stream "^2.0.0"

From 9b22d86ab315a3c6061a6a4776eab1964304f92e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 8 Mar 2018 09:51:03 -0500
Subject: [PATCH 401/911] fix: install ssr helpers for functional context
 during SSR

close #7443, ref nuxt/nuxt.js#2565
---
 flow/component.js                             |  2 ++
 scripts/config.js                             |  2 +-
 src/core/index.js                             |  6 ++++
 src/core/vdom/create-functional-component.js  | 12 +++----
 .../optimizing-compiler/runtime-helpers.js    | 35 +++++++++++--------
 test/ssr/ssr-string.spec.js                   | 19 ++++++++++
 6 files changed, 55 insertions(+), 21 deletions(-)

diff --git a/flow/component.js b/flow/component.js
index e3326bd3d0e..0dc67a48a3e 100644
--- a/flow/component.js
+++ b/flow/component.js
@@ -16,6 +16,8 @@ declare interface Component {
   static directive: (id: string, def?: Function | Object) => Function | Object | void;
   static component: (id: string, def?: Class<Component> | Object) => Class<Component>;
   static filter: (id: string, def?: Function) => Function | void;
+  // functional context constructor
+  static FunctionalRenderContext: Function;
 
   // public properties
   $el: any; // so that we can attach __vue__ to it
diff --git a/scripts/config.js b/scripts/config.js
index b0c705e4d1a..4fe40552521 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -123,7 +123,7 @@ const builds = {
     format: 'cjs',
     external: Object.keys(require('../packages/vue-server-renderer/package.json').dependencies)
   },
-  'web-server-basic-renderer': {
+  'web-server-renderer-basic': {
     entry: resolve('web/entry-server-basic-renderer.js'),
     dest: resolve('packages/vue-server-renderer/basic.js'),
     format: 'umd',
diff --git a/src/core/index.js b/src/core/index.js
index b2a0cb8c5a2..daf6203b263 100644
--- a/src/core/index.js
+++ b/src/core/index.js
@@ -1,6 +1,7 @@
 import Vue from './instance/index'
 import { initGlobalAPI } from './global-api/index'
 import { isServerRendering } from 'core/util/env'
+import { FunctionalRenderContext } from 'core/vdom/create-functional-component'
 
 initGlobalAPI(Vue)
 
@@ -15,6 +16,11 @@ Object.defineProperty(Vue.prototype, '$ssrContext', {
   }
 })
 
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+})
+
 Vue.version = '__VERSION__'
 
 export default Vue
diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index d0cbd0a2584..c4e4cf9e80e 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -15,12 +15,12 @@ import {
   validateProp
 } from '../util/index'
 
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
+export function FunctionalRenderContext (
+  data: VNodeData,
+  props: Object,
+  children: ?Array<VNode>,
+  parent: Component,
+  Ctor: Class<Component>
 ) {
   const options = Ctor.options
   this.data = data
diff --git a/src/server/optimizing-compiler/runtime-helpers.js b/src/server/optimizing-compiler/runtime-helpers.js
index b4f7c1f145d..9abfe1985d7 100644
--- a/src/server/optimizing-compiler/runtime-helpers.js
+++ b/src/server/optimizing-compiler/runtime-helpers.js
@@ -17,22 +17,29 @@ import {
   isRenderableAttr
 } from 'web/server/util'
 
+const ssrHelpers = {
+  _ssrEscape: escape,
+  _ssrNode: renderStringNode,
+  _ssrList: renderStringList,
+  _ssrAttr: renderAttr,
+  _ssrAttrs: renderAttrs,
+  _ssrDOMProps: renderDOMProps,
+  _ssrClass: renderSSRClass,
+  _ssrStyle: renderSSRStyle
+}
+
 export function installSSRHelpers (vm: Component) {
-  if (vm._ssrNode) return
-  let Ctor = vm.constructor
-  while (Ctor.super) {
-    Ctor = Ctor.super
+  if (vm._ssrNode) {
+    return
+  }
+  let Vue = vm.constructor
+  while (Vue.super) {
+    Vue = Vue.super
+  }
+  extend(Vue.prototype, ssrHelpers)
+  if (Vue.FunctionalRenderContext) {
+    extend(Vue.FunctionalRenderContext.prototype, ssrHelpers)
   }
-  extend(Ctor.prototype, {
-    _ssrEscape: escape,
-    _ssrNode: renderStringNode,
-    _ssrList: renderStringList,
-    _ssrAttr: renderAttr,
-    _ssrAttrs: renderAttrs,
-    _ssrDOMProps: renderDOMProps,
-    _ssrClass: renderSSRClass,
-    _ssrStyle: renderSSRStyle
-  })
 }
 
 class StringNode {
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 66ed897ce72..f370618d8bc 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1145,6 +1145,25 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('should expose ssr helpers on functional context', done => {
+    let called = false
+    renderVmWithOptions({
+      template: `<div><foo/></div>`,
+      components: {
+        foo: {
+          functional: true,
+          render (h, ctx) {
+            expect(ctx._ssrNode).toBeTruthy()
+            called = true
+          }
+        }
+      }
+    }, () => {
+      expect(called).toBe(true)
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 80e650cfdf9f8127405592d64ba5af1e6e13ce86 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 8 Mar 2018 09:52:27 -0500
Subject: [PATCH 402/911] chore: fix formatting

---
 .../modules/compiler/compiler-options.spec.js | 36 ++++++++++---------
 1 file changed, 19 insertions(+), 17 deletions(-)

diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index 161a329635d..0070c352166 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -9,17 +9,18 @@ describe('compile options', () => {
         <input type="text" v-model="msg" required max="8" v-validate:field1.group1.group2>
       </div>
     `, {
-        directives: {
-          validate (el, dir) {
-            if (dir.name === 'validate' && dir.arg) {
-              el.validate = {
-                field: dir.arg,
-                groups: dir.modifiers ? Object.keys(dir.modifiers) : []
-              }
+      directives: {
+        validate (el, dir) {
+          if (dir.name === 'validate' && dir.arg) {
+            el.validate = {
+              field: dir.arg,
+              groups: dir.modifiers ? Object.keys(dir.modifiers) : []
             }
           }
-        },
-        modules: [{
+        }
+      },
+      modules: [
+        {
           transformNode (el) {
             el.validators = el.validators || []
             const validators = ['required', 'min', 'max', 'pattern', 'maxlength', 'minlength']
@@ -52,15 +53,16 @@ describe('compile options', () => {
             })
             // generate code
             return `_c('validate',{props:{
-          field:${JSON.stringify(el.validate.field)},
-          groups:${JSON.stringify(el.validate.groups)},
-          validators:${JSON.stringify(el.validators)},
-          result:${JSON.stringify(result)},
-          child:${code}}
-        })`
+              field:${JSON.stringify(el.validate.field)},
+              groups:${JSON.stringify(el.validate.groups)},
+              validators:${JSON.stringify(el.validators)},
+              result:${JSON.stringify(result)},
+              child:${code}}
+            })`
           }
-        }]
-      })
+        }
+      ]
+    })
     expect(render).not.toBeUndefined()
     expect(staticRenderFns).toEqual([])
     expect(errors).toEqual([])

From dc2171a33a38d0563ef14934b078d9dc4c39acf3 Mon Sep 17 00:00:00 2001
From: dmitry-vakhnenko <33278950+dmitry-vakhnenko@users.noreply.github.com>
Date: Thu, 8 Mar 2018 18:07:40 +0300
Subject: [PATCH 403/911] refactor: Use native bind function instead of own
 (#7491)

close #7408
---
 src/shared/util.js | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/shared/util.js b/src/shared/util.js
index a0bc957ee93..3a7664b76e9 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -174,22 +174,34 @@ export const hyphenate = cached((str: string): string => {
 })
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-export function bind (fn: Function, ctx: Object): Function {
+function polyfillBind (fn: Function, ctx: Object): Function {
   function boundFn (a) {
-    const l: number = arguments.length
+    const l = arguments.length
     return l
       ? l > 1
         ? fn.apply(ctx, arguments)
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length
   return boundFn
 }
 
+function nativeBind (fn: Function, ctx: Object): Function {
+  return fn.bind(ctx)
+}
+
+export const bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind
+
 /**
  * Convert an Array-like object to a real Array.
  */

From e9ea565d915cdffbad17bb78aa30af752dd4e5e6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=B0smail=20Ar=C4=B1l=C4=B1k?= <arilik.ismail@gmail.com>
Date: Thu, 8 Mar 2018 18:31:40 +0300
Subject: [PATCH 404/911] polish: raise warning when Vue.set/delete is called
 on invalid values  (#7452)

close #7381
---
 src/core/observer/index.js                  | 12 ++++++++++++
 test/unit/modules/observer/observer.spec.js | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 244876b2172..2ce0aabd2c9 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -194,6 +194,12 @@ export function defineReactive (
  * already exist.
  */
 export function set (target: Array<any> | Object, key: any, val: any): any {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(`Cannot set reactive property on non-object/array value: ${target}`)
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key)
     target.splice(key, 1, val)
@@ -224,6 +230,12 @@ export function set (target: Array<any> | Object, key: any, val: any): any {
  * Delete a property and trigger change if necessary.
  */
 export function del (target: Array<any> | Object, key: any) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(`Cannot delete reactive property on non-object/array value: ${target}`)
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1)
     return
diff --git a/test/unit/modules/observer/observer.spec.js b/test/unit/modules/observer/observer.spec.js
index 3ed7a3a48c3..2002682328c 100644
--- a/test/unit/modules/observer/observer.spec.js
+++ b/test/unit/modules/observer/observer.spec.js
@@ -356,6 +356,18 @@ describe('Observer', () => {
     })
   })
 
+  it('warn set/delete on non valid values', () => {
+    try {
+      setProp(null, 'foo', 1)
+    } catch (e) {}
+    expect(`Cannot set reactive property on non-object/array value`).toHaveBeenWarned()
+
+    try {
+      delProp(null, 'foo')
+    } catch (e) {}
+    expect(`Cannot delete reactive property on non-object/array value`).toHaveBeenWarned()
+  })
+
   it('should lazy invoke existing getters', () => {
     const obj = {}
     let called = false

From e98d12d232af49b8e127375b6237013e01b77dda Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 8 Mar 2018 10:32:42 -0500
Subject: [PATCH 405/911] workflow: add "polish" to commit types

---
 .github/COMMIT_CONVENTION.md | 2 +-
 scripts/verify-commit-msg.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/COMMIT_CONVENTION.md b/.github/COMMIT_CONVENTION.md
index 6d2813fb663..b0d50519688 100644
--- a/.github/COMMIT_CONVENTION.md
+++ b/.github/COMMIT_CONVENTION.md
@@ -7,7 +7,7 @@
 Messages must be matched by the following regex:
 
 ``` js
-/^(revert: )?(feat|fix|docs|style|refactor|perf|test|workflow|ci|chore|types)(\(.+\))?: .{1,50}/
+/^(revert: )?(feat|fix|polish|docs|style|refactor|perf|test|workflow|ci|chore|types)(\(.+\))?: .{1,50}/
 ```
 
 #### Examples
diff --git a/scripts/verify-commit-msg.js b/scripts/verify-commit-msg.js
index 34c2862cbde..6a2749de933 100644
--- a/scripts/verify-commit-msg.js
+++ b/scripts/verify-commit-msg.js
@@ -2,7 +2,7 @@ const chalk = require('chalk')
 const msgPath = process.env.GIT_PARAMS
 const msg = require('fs').readFileSync(msgPath, 'utf-8').trim()
 
-const commitRE = /^(revert: )?(feat|fix|docs|style|refactor|perf|test|workflow|ci|chore|types)(\(.+\))?: .{1,50}/
+const commitRE = /^(revert: )?(feat|fix|polish|docs|style|refactor|perf|test|workflow|ci|chore|types)(\(.+\))?: .{1,50}/
 
 if (!commitRE.test(msg)) {
   console.log()

From 733c1be7f5983cdd9e8089a8088b235ba21a4dee Mon Sep 17 00:00:00 2001
From: Hiroki Osame <hiroki.osame@gmail.com>
Date: Thu, 8 Mar 2018 06:15:35 -1000
Subject: [PATCH 406/911] fix(inject): use hasOwn instead of 'in' for
 provideKey check (#7460)

fix #7284

* fix(Injection with Symbol polyfill): hasOwn instead of 'in'

Symbol polyfill adds a setter on the Object prototype so the 'in' check evaluated to true on every
object

* test(Injected properties): Ensures prototype properties aren't injected

Prototype properties were being injected, so injecting 'constructor' would have hit the first
provide-layer and not yield expected results.
---
 src/core/instance/inject.js               |  3 ++-
 test/unit/features/options/inject.spec.js | 12 ++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index 019026479ec..cb14cfeb05d 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -3,6 +3,7 @@
 import { warn } from '../util/index'
 import { hasSymbol } from 'core/util/env'
 import { defineReactive, observerState } from '../observer/index'
+import { hasOwn } from 'shared/util'
 
 export function initProvide (vm: Component) {
   const provide = vm.$options.provide
@@ -52,7 +53,7 @@ export function resolveInject (inject: any, vm: Component): ?Object {
       const provideKey = inject[key].from
       let source = vm
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey]
           break
         }
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index cd5c7097f31..53f55e1ecf2 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -635,4 +635,16 @@ describe('Options provide/inject', () => {
 
     expect(injected).toEqual('foo')
   })
+
+  // #7284
+  it('should not inject prototype properties', () => {
+    const vm = new Vue({
+      provide: {}
+    })
+    new Vue({
+      parent: vm,
+      inject: ['constructor']
+    })
+    expect(`Injection "constructor" not found`).toHaveBeenWarned()
+  })
 })

From 013d98092868a0c6721831e91616c64f99119b74 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Thu, 8 Mar 2018 17:19:08 +0100
Subject: [PATCH 407/911] fix(show): prevent transitions from starting on
 change truthy values (#7524)

Closes #7523
---
 src/platforms/web/runtime/directives/show.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/directives/show.js b/src/platforms/web/runtime/directives/show.js
index 703aa5b6afe..17fb5dec20d 100644
--- a/src/platforms/web/runtime/directives/show.js
+++ b/src/platforms/web/runtime/directives/show.js
@@ -27,7 +27,7 @@ export default {
 
   update (el: any, { value, oldValue }: VNodeDirective, vnode: VNodeWithData) {
     /* istanbul ignore if */
-    if (value === oldValue) return
+    if (!value === !oldValue) return
     vnode = locateNode(vnode)
     const transition = vnode.data && vnode.data.transition
     if (transition) {

From dc97a39c2f41ce57431d42d8b41811866f8e105c Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Thu, 8 Mar 2018 17:24:09 +0100
Subject: [PATCH 408/911] fix(codegen): support filters with () in older
 browsers (#7545)

Fix #7544
Make sure no extra , is added at the end of the call so it also work with older browsers
---
 src/compiler/parser/filter-parser.js       | 2 +-
 test/unit/modules/compiler/codegen.spec.js | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/filter-parser.js b/src/compiler/parser/filter-parser.js
index ca8ead850ae..10939d3fb34 100644
--- a/src/compiler/parser/filter-parser.js
+++ b/src/compiler/parser/filter-parser.js
@@ -92,6 +92,6 @@ function wrapFilter (exp: string, filter: string): string {
   } else {
     const name = filter.slice(0, i)
     const args = filter.slice(i + 1)
-    return `_f("${name}")(${exp},${args}`
+    return `_f("${name}")(${exp}${args !== ')' ? ',' + args : args}`
   }
 }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 2ecdca93828..a072904ece0 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -44,6 +44,13 @@ describe('codegen', () => {
     )
   })
 
+  it('generate filters with no arguments', () => {
+    assertCodegen(
+      '<div>{{ d | e() }}</div>',
+      `with(this){return _c('div',[_v(_s(_f("e")(d)))])}`
+    )
+  })
+
   it('generate v-for directive', () => {
     assertCodegen(
       '<div><li v-for="item in items" :key="item.uid"></li></div>',

From db1b18ceec51761f1bcd6160c51e02b36b86a9c2 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Fri, 9 Mar 2018 01:52:01 +0900
Subject: [PATCH 409/911] fix(types): add missing `listeners` type on
 RenderContext (#7584)

---
 types/options.d.ts         | 1 +
 types/test/options-test.ts | 1 +
 2 files changed, 2 insertions(+)

diff --git a/types/options.d.ts b/types/options.d.ts
index a54993fff5d..d6f21d4ee74 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -119,6 +119,7 @@ export interface RenderContext<Props=DefaultProps> {
   slots(): any;
   data: VNodeData;
   parent: Vue;
+  listeners: { [key: string]: Function | Function[] };
   injections: any
 }
 
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index a14560fe1b3..82e04882139 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -312,6 +312,7 @@ Vue.component('functional-component', {
     context.slots();
     context.data;
     context.parent;
+    context.listeners.click;
     return createElement("div", {}, context.children);
   }
 });

From ec9152f67ac6b910012059df7f3a67e5517e205f Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Thu, 8 Mar 2018 17:55:01 +0100
Subject: [PATCH 410/911] ci: use latest version of codecov binary (#7665)

closes #7664
---
 .circleci/config.yml | 2 +-
 package.json         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0c5f49e158d..908a6968b9b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -44,7 +44,7 @@ jobs:
          name: report coverage stats for non-PRs
          command: |
            if [[ -z $CI_PULL_REQUEST ]]; then
-             cat ./coverage/lcov.info | ./node_modules/.bin/codecov
+             ./node_modules/.bin/codecov
            fi
 
   test-e2e:
diff --git a/package.json b/package.json
index feffe917b24..a55045d118e 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
     "buble": "^0.19.3",
     "chalk": "^2.3.0",
     "chromedriver": "^2.30.1",
-    "codecov.io": "^0.1.6",
+    "codecov": "^3.0.0",
     "commitizen": "^2.9.6",
     "conventional-changelog": "^1.1.3",
     "cross-spawn": "^5.1.0",

From b2092dbff9ab0ccfa8e59ed3ca540cca0715c683 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Fri, 9 Mar 2018 01:55:27 +0900
Subject: [PATCH 411/911] fix(types): make render option in functional
 components to optional (#7663)

---
 types/options.d.ts         | 2 +-
 types/test/options-test.ts | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index d6f21d4ee74..dcaf5f5a0f3 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -110,7 +110,7 @@ export interface FunctionalComponentOptions<Props = DefaultProps, PropDefs = Pro
   props?: PropDefs;
   inject?: InjectOptions;
   functional: boolean;
-  render(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode;
+  render?(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode;
 }
 
 export interface RenderContext<Props=DefaultProps> {
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 82e04882139..df03ed787fc 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -331,6 +331,10 @@ Vue.component('functional-component-object-inject', {
   }
 })
 
+Vue.component('functional-component-check-optional', {
+  functional: true
+})
+
 Vue.component("async-component", ((resolve, reject) => {
   setTimeout(() => {
     resolve(Vue.component("component"));

From acd92cf981d384d4006c81b9001a6d35957630dc Mon Sep 17 00:00:00 2001
From: Yao Ding <yaodingyd@gmail.com>
Date: Thu, 8 Mar 2018 11:58:14 -0500
Subject: [PATCH 412/911] chore: unify the terms 'microtask' and '(macro) task'
 (#7641)

---
 src/core/util/next-tick.js | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/core/util/next-tick.js b/src/core/util/next-tick.js
index 9e4f476d65b..07a9e841843 100644
--- a/src/core/util/next-tick.js
+++ b/src/core/util/next-tick.js
@@ -17,19 +17,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 let microTimerFunc
 let macroTimerFunc
 let useMacroTask = false
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -56,7 +56,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   }
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   const p = Promise.resolve()
@@ -76,7 +76,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 export function withMacroTask (fn: Function): Function {
   return fn._withTask || (fn._withTask = function () {

From 2b0fc381fcc2888b05fbbdf314b8450d3f31d396 Mon Sep 17 00:00:00 2001
From: Stanimira Vlaeva <stanimira.vlaeva@gmail.com>
Date: Thu, 8 Mar 2018 19:00:11 +0200
Subject: [PATCH 413/911] docs: update Angular's commit convention link (#7666)

---
 .github/COMMIT_CONVENTION.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/COMMIT_CONVENTION.md b/.github/COMMIT_CONVENTION.md
index b0d50519688..02e7ad26ab1 100644
--- a/.github/COMMIT_CONVENTION.md
+++ b/.github/COMMIT_CONVENTION.md
@@ -1,6 +1,6 @@
 ## Git Commit Message Convention
 
-> This is adapted from [Angular's commit convention](https://github.com/conventional-changelog/conventional-changelog/blob/master/packages/conventional-changelog-angular/convention.md).
+> This is adapted from [Angular's commit convention](https://github.com/conventional-changelog/conventional-changelog/tree/master/packages/conventional-changelog-angular).
 
 #### TL;DR:
 

From 6b8516b2dde52be643ee6855b45b253a17ed0461 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Fri, 9 Mar 2018 02:05:03 +0900
Subject: [PATCH 414/911] fix(types): fix wrong errorCaptured type (#7712)

---
 types/options.d.ts         | 2 +-
 types/test/options-test.ts | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index dcaf5f5a0f3..6b5ebe41726 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -80,7 +80,7 @@ export interface ComponentOptions<
   updated?(): void;
   activated?(): void;
   deactivated?(): void;
-  errorCaptured?(): boolean | void;
+  errorCaptured?(err: Error, vm: Vue, info: string): boolean | void;
 
   directives?: { [key: string]: DirectiveFunction | DirectiveOptions };
   components?: { [key: string]: Component<any, any, any, any> | AsyncComponent<any, any, any, any> };
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index df03ed787fc..6fc9e356451 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -199,7 +199,10 @@ Vue.component('component', {
   updated() {},
   activated() {},
   deactivated() {},
-  errorCaptured() {
+  errorCaptured(err, vm, info) {
+    err.message
+    vm.$emit('error')
+    info.toUpperCase()
     return true
   },
 

From 9e04f6af2792f709417f4d39113e7723aae69918 Mon Sep 17 00:00:00 2001
From: Sergei Chipiga <chipiga86@gmail.com>
Date: Thu, 8 Mar 2018 19:06:46 +0200
Subject: [PATCH 415/911] test: add unit tests for core/observer/dep (#7738)

---
 test/unit/modules/observer/dep.spec.js | 63 ++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 test/unit/modules/observer/dep.spec.js

diff --git a/test/unit/modules/observer/dep.spec.js b/test/unit/modules/observer/dep.spec.js
new file mode 100644
index 00000000000..02809f8a4d9
--- /dev/null
+++ b/test/unit/modules/observer/dep.spec.js
@@ -0,0 +1,63 @@
+import Dep from 'core/observer/dep'
+
+describe('Dep', () => {
+  let dep
+
+  beforeEach(() => {
+    dep = new Dep()
+  })
+
+  describe('instance', () => {
+    it('should be created with correct properties', () => {
+      expect(dep.subs.length).toBe(0)
+      expect(new Dep().id).toBe(dep.id + 1)
+    })
+  })
+
+  describe('addSub()', () => {
+    it('should add sub', () => {
+      dep.addSub(null)
+      expect(dep.subs.length).toBe(1)
+      expect(dep.subs[0]).toBe(null)
+    })
+  })
+
+  describe('removeSub()', () => {
+    it('should remove sub', () => {
+      dep.subs.push(null)
+      dep.removeSub(null)
+      expect(dep.subs.length).toBe(0)
+    })
+  })
+
+  describe('depend()', () => {
+    let _target
+
+    beforeAll(() => {
+      _target = Dep.target
+    })
+
+    afterAll(() => {
+      Dep.target = _target
+    })
+
+    it('should do nothing if no target', () => {
+      Dep.target = null
+      dep.depend()
+    })
+
+    it('should add itself to target', () => {
+      Dep.target = jasmine.createSpyObj('TARGET', ['addDep'])
+      dep.depend()
+      expect(Dep.target.addDep).toHaveBeenCalledWith(dep)
+    })
+  })
+
+  describe('notify()', () => {
+    it('should notify subs', () => {
+      dep.subs.push(jasmine.createSpyObj('SUB', ['update']))
+      dep.notify()
+      expect(dep.subs[0].update).toHaveBeenCalled()
+    })
+  })
+})

From f83987bb7022a4fa50b59445158b824debcbf6b4 Mon Sep 17 00:00:00 2001
From: Chang Wang <cheapsteak@gmail.com>
Date: Thu, 8 Mar 2018 12:07:57 -0500
Subject: [PATCH 416/911] chore: update downloads badge to point to graph of
 downloads (#7733)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 166ac97b6fc..c89a48c66d8 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 <p align="center">
   <a href="https://circleci.com/gh/vuejs/vue/tree/dev"><img src="https://img.shields.io/circleci/project/vuejs/vue/dev.svg" alt="Build Status"></a>
   <a href="https://codecov.io/github/vuejs/vue?branch=dev"><img src="https://img.shields.io/codecov/c/github/vuejs/vue/dev.svg" alt="Coverage Status"></a>
-  <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/dm/vue.svg" alt="Downloads"></a>
+  <a href="https://npmcharts.com/compare/vue?minimal=true"><img src="https://img.shields.io/npm/dm/vue.svg" alt="Downloads"></a>
   <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/v/vue.svg" alt="Version"></a>
   <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/l/vue.svg" alt="License"></a>
   <a href="https://chat.vuejs.org/"><img src="https://img.shields.io/badge/chat-on%20discord-7289da.svg" alt="Chat"></a>

From 8053f6043c8e24f4bbd2002ab960a86f5c94c541 Mon Sep 17 00:00:00 2001
From: Huo Chunyang <HcySunYang@outlook.com>
Date: Fri, 9 Mar 2018 01:09:48 +0800
Subject: [PATCH 417/911] chore: merge imports (#7762)

---
 src/core/instance/inject.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index cb14cfeb05d..247b45f4741 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -1,7 +1,6 @@
 /* @flow */
 
-import { warn } from '../util/index'
-import { hasSymbol } from 'core/util/env'
+import { warn, hasSymbol } from '../util/index'
 import { defineReactive, observerState } from '../observer/index'
 import { hasOwn } from 'shared/util'
 

From 6931a47c5c5664d4df2a99dd5c1b275ccef625bc Mon Sep 17 00:00:00 2001
From: Gcaufy <gcaufy@gmail.com>
Date: Fri, 9 Mar 2018 01:21:11 +0800
Subject: [PATCH 418/911] refactor: use more accurate variable name (#7755)

---
 src/core/instance/state.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index a42638a13f7..ddabe12a0c3 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -292,7 +292,7 @@ function initWatch (vm: Component, watch: Object) {
 
 function createWatcher (
   vm: Component,
-  keyOrFn: string | Function,
+  expOrFn: string | Function,
   handler: any,
   options?: Object
 ) {
@@ -303,7 +303,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler]
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 export function stateMixin (Vue: Class<Component>) {

From 68b51f2620a8245398d7c95b8afd523d0917d10b Mon Sep 17 00:00:00 2001
From: Lars Stegman <LarsStegman@users.noreply.github.com>
Date: Thu, 8 Mar 2018 18:21:57 +0100
Subject: [PATCH 419/911] chore: fix comment grammar mistake (#7739)

---
 src/core/observer/index.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 2ce0aabd2c9..da3121032e5 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -27,10 +27,10 @@ export const observerState = {
 }
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 export class Observer {
   value: any;

From 144bf5a99e2ebd644f80bc8ab61cd1bf0366961a Mon Sep 17 00:00:00 2001
From: Herrington Darkholme <HerringtonDarkholme@users.noreply.github.com>
Date: Fri, 9 Mar 2018 02:55:52 +0800
Subject: [PATCH 420/911] fix(types): prefer normal component over functional
 one (#7687)

---
 types/options.d.ts | 11 +++++++----
 types/vue.d.ts     |  8 ++++----
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 6b5ebe41726..cc58affe6a1 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -31,12 +31,13 @@ export type Accessors<T> = {
   [K in keyof T]: (() => T[K]) | ComputedOptions<T[K]>
 }
 
+type DataDef<Data, Props, V> = Data | ((this: Readonly<Props> & V) => Data)
 /**
  * This type should be used when an array of strings is used for a component's `props` value.
  */
 export type ThisTypedComponentOptionsWithArrayProps<V extends Vue, Data, Methods, Computed, PropNames extends string> =
   object &
-  ComponentOptions<V, Data | ((this: Readonly<Record<PropNames, any>> & V) => Data), Methods, Computed, PropNames[]> &
+  ComponentOptions<V, DataDef<Data, Record<PropNames, any>, V>, Methods, Computed, PropNames[], Record<PropNames, any>> &
   ThisType<CombinedVueInstance<V, Data, Methods, Computed, Readonly<Record<PropNames, any>>>>;
 
 /**
@@ -44,7 +45,7 @@ export type ThisTypedComponentOptionsWithArrayProps<V extends Vue, Data, Methods
  */
 export type ThisTypedComponentOptionsWithRecordProps<V extends Vue, Data, Methods, Computed, Props> =
   object &
-  ComponentOptions<V, Data | ((this: Readonly<Props> & V) => Data), Methods, Computed, RecordPropsDefinition<Props>> &
+  ComponentOptions<V, DataDef<Data, Props, V>, Methods, Computed, RecordPropsDefinition<Props>, Props> &
   ThisType<CombinedVueInstance<V, Data, Methods, Computed, Readonly<Props>>>;
 
 type DefaultData<V> =  object | ((this: V) => object);
@@ -56,7 +57,8 @@ export interface ComponentOptions<
   Data=DefaultData<V>,
   Methods=DefaultMethods<V>,
   Computed=DefaultComputed,
-  PropsDef=PropsDefinition<DefaultProps>> {
+  PropsDef=PropsDefinition<DefaultProps>,
+  Props=DefaultProps> {
   data?: Data;
   props?: PropsDef;
   propsData?: object;
@@ -66,7 +68,8 @@ export interface ComponentOptions<
 
   el?: Element | string;
   template?: string;
-  render?(createElement: CreateElement): VNode;
+  // hack is for funcitonal component type inference, should not used in user code
+  render?(createElement: CreateElement, hack: RenderContext<Props>): VNode;
   renderError?: (h: () => VNode, err: Error) => VNode;
   staticRenderFns?: ((createElement: CreateElement) => VNode)[];
 
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 045644e0a94..e0b29157cfa 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -82,10 +82,10 @@ export interface VueConstructor<V extends Vue = Vue> {
   new <Data = object, Methods = object, Computed = object, Props = object>(options?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): CombinedVueInstance<V, Data, Methods, Computed, Record<keyof Props, any>>;
   new (options?: ComponentOptions<V>): CombinedVueInstance<V, object, object, object, Record<keyof object, any>>;
 
-  extend<PropNames extends string = never>(definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
-  extend<Props>(definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
   extend<Data, Methods, Computed, PropNames extends string = never>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
   extend<Data, Methods, Computed, Props>(options?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
+  extend<PropNames extends string = never>(definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
+  extend<Props>(definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
   extend(options?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 
   nextTick(callback: () => void, context?: any[]): void;
@@ -104,10 +104,10 @@ export interface VueConstructor<V extends Vue = Vue> {
   component(id: string): VueConstructor;
   component<VC extends VueConstructor>(id: string, constructor: VC): VC;
   component<Data, Methods, Computed, Props>(id: string, definition: AsyncComponent<Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
-  component<PropNames extends string>(id: string, definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
-  component<Props>(id: string, definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
   component<Data, Methods, Computed, PropNames extends string = never>(id: string, definition?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): ExtendedVue<V, Data, Methods, Computed, Record<PropNames, any>>;
   component<Data, Methods, Computed, Props>(id: string, definition?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): ExtendedVue<V, Data, Methods, Computed, Props>;
+  component<PropNames extends string>(id: string, definition: FunctionalComponentOptions<Record<PropNames, any>, PropNames[]>): ExtendedVue<V, {}, {}, {}, Record<PropNames, any>>;
+  component<Props>(id: string, definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
   component(id: string, definition?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 
   use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): void;

From 550c3c0d14af5485bb7e507c504664a7136e9bf9 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Thu, 8 Mar 2018 22:54:33 +0100
Subject: [PATCH 421/911] fix(model): fix array index binding for v-model
 checkbox (#7671)

Closes #7670
---
 src/platforms/web/compiler/directives/model.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index fc33a0c6e45..126f0c7d6c7 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -86,8 +86,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       `var $$v=${number ? '_n(' + valueBinding + ')' : valueBinding},` +
           '$$i=_i($$a,$$v);' +
-      `if($$el.checked){$$i<0&&(${value}=$$a.concat([$$v]))}` +
-      `else{$$i>-1&&(${value}=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}` +
+      `if($$el.checked){$$i<0&&(${genAssignmentCode(value, '$$a.concat([$$v])')})}` +
+      `else{$$i>-1&&(${genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')})}` +
     `}else{${genAssignmentCode(value, '$$c')}}`,
     null, true
   )

From db584931e20f9ad4b423cfc14d587f9d0240a565 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Thu, 8 Mar 2018 23:01:38 +0100
Subject: [PATCH 422/911] fix(v-model): handle trailing whitespaces in
 expression (#7737)

---
 src/compiler/directives/model.js                 |  7 +++++--
 test/unit/features/directives/model-text.spec.js | 15 +++++++++++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/compiler/directives/model.js b/src/compiler/directives/model.js
index 8c1f55bf663..39bdbfda4c2 100644
--- a/src/compiler/directives/model.js
+++ b/src/compiler/directives/model.js
@@ -15,8 +15,8 @@ export function genComponentModel (
   if (trim) {
     valueExpression =
       `(typeof ${baseValueExpression} === 'string'` +
-        `? ${baseValueExpression}.trim()` +
-        `: ${baseValueExpression})`
+      `? ${baseValueExpression}.trim()` +
+      `: ${baseValueExpression})`
   }
   if (number) {
     valueExpression = `_n(${valueExpression})`
@@ -68,6 +68,9 @@ type ModelParseResult = {
 }
 
 export function parseModel (val: string): ModelParseResult {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim()
   len = val.length
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 08bd1efc92a..7ae44f9f9aa 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -19,6 +19,21 @@ describe('Directive v-model text', () => {
     }).then(done)
   })
 
+  it('should work with space ended expression in v-model', () => {
+    const vm = new Vue({
+      data: {
+        obj: {
+          test: 'b'
+        }
+      },
+      template: '<input v-model="obj.test ">'
+    }).$mount()
+
+    triggerEvent(vm.$el, 'input')
+    expect(vm.obj['test ']).toBe(undefined)
+    expect(vm.obj.test).toBe('b')
+  })
+
   it('.lazy modifier', () => {
     const vm = new Vue({
       data: {

From 6bc75cacb72c0cc7f3d1041b5d9ff447ac2f5f69 Mon Sep 17 00:00:00 2001
From: Alex <stukak@gmail.com>
Date: Fri, 9 Mar 2018 00:09:53 +0200
Subject: [PATCH 423/911] fix(v-on): return handler value when using modifiers
 (#7704)

---
 src/compiler/codegen/events.js                |  4 +-
 test/unit/modules/compiler/codegen.spec.js    | 91 ++++++++++++++-----
 .../modules/vdom/patch/edge-cases.spec.js     | 37 ++++++++
 3 files changed, 107 insertions(+), 25 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 084c2908dcf..58e7b014760 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -132,9 +132,9 @@ function genHandler (
       code += genModifierCode
     }
     const handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? `return ${handler.value}($event)`
       : isFunctionExpression
-        ? `(${handler.value})($event)`
+        ? `return (${handler.value})($event)`
         : handler.value
     /* istanbul ignore if */
     if (__WEEX__ && handler.params) {
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index a072904ece0..93a27f3b245 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -269,45 +269,90 @@ describe('codegen', () => {
     )
   })
 
+  it('generate events with method call', () => {
+    assertCodegen(
+      '<input @input="onInput($event);">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput($event);}}})}`
+    )
+    // empty arguments
+    assertCodegen(
+      '<input @input="onInput();">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput();}}})}`
+    )
+    // without semicolon
+    assertCodegen(
+      '<input @input="onInput($event)">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput($event)}}})}`
+    )
+    // multiple args
+    assertCodegen(
+      '<input @input="onInput($event, \'abc\', 5);">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput($event, 'abc', 5);}}})}`
+    )
+    // expression in args
+    assertCodegen(
+      '<input @input="onInput($event, 2+2);">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput($event, 2+2);}}})}`
+    )
+    // tricky symbols in args
+    assertCodegen(
+      '<input @input="onInput(\');[\'());\');">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput(');[\'());');}}})}`
+    )
+  })
+
+  it('generate events with multiple statements', () => {
+    // normal function
+    assertCodegen(
+      '<input @input="onInput1();onInput2()">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput1();onInput2()}}})}`
+    )
+    // function with multiple args
+    assertCodegen(
+      '<input @input="onInput1($event, \'text\');onInput2(\'text2\', $event)">',
+      `with(this){return _c('input',{on:{"input":function($event){onInput1($event, 'text');onInput2('text2', $event)}}})}`
+    )
+  })
+
   it('generate events with keycode', () => {
     assertCodegen(
       '<input @input.enter="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (delete)
     assertCodegen(
       '<input @input.delete="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (chained)
     assertCodegen(
       '<input @keydown.enter.delete="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;return onInput($event)}}})}`
     )
     // number keycode
     assertCodegen(
       '<input @input.13="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&$event.keyCode!==13)return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&$event.keyCode!==13)return null;return onInput($event)}}})}`
     )
     // custom keycode
     assertCodegen(
       '<input @input.custom="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;return onInput($event)}}})}`
     )
   })
 
   it('generate events with generic modifiers', () => {
     assertCodegen(
       '<input @input.stop="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();return onInput($event)}}})}`
     )
     assertCodegen(
       '<input @input.prevent="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){$event.preventDefault();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){$event.preventDefault();return onInput($event)}}})}`
     )
     assertCodegen(
       '<input @input.self="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if($event.target !== $event.currentTarget)return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if($event.target !== $event.currentTarget)return null;return onInput($event)}}})}`
     )
   })
 
@@ -315,74 +360,74 @@ describe('codegen', () => {
   it('generate events with generic modifiers and keycode correct order', () => {
     assertCodegen(
       '<input @keydown.enter.prevent="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();return onInput($event)}}})}`
     )
 
     assertCodegen(
       '<input @keydown.enter.stop="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();return onInput($event)}}})}`
     )
   })
 
   it('generate events with mouse event modifiers', () => {
     assertCodegen(
       '<input @click.ctrl="onClick">',
-      `with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;onClick($event)}}})}`
+      `with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;return onClick($event)}}})}`
     )
     assertCodegen(
       '<input @click.shift="onClick">',
-      `with(this){return _c('input',{on:{"click":function($event){if(!$event.shiftKey)return null;onClick($event)}}})}`
+      `with(this){return _c('input',{on:{"click":function($event){if(!$event.shiftKey)return null;return onClick($event)}}})}`
     )
     assertCodegen(
       '<input @click.alt="onClick">',
-      `with(this){return _c('input',{on:{"click":function($event){if(!$event.altKey)return null;onClick($event)}}})}`
+      `with(this){return _c('input',{on:{"click":function($event){if(!$event.altKey)return null;return onClick($event)}}})}`
     )
     assertCodegen(
       '<input @click.meta="onClick">',
-      `with(this){return _c('input',{on:{"click":function($event){if(!$event.metaKey)return null;onClick($event)}}})}`
+      `with(this){return _c('input',{on:{"click":function($event){if(!$event.metaKey)return null;return onClick($event)}}})}`
     )
     assertCodegen(
       '<input @click.exact="onClick">',
-      `with(this){return _c('input',{on:{"click":function($event){if($event.ctrlKey||$event.shiftKey||$event.altKey||$event.metaKey)return null;onClick($event)}}})}`
+      `with(this){return _c('input',{on:{"click":function($event){if($event.ctrlKey||$event.shiftKey||$event.altKey||$event.metaKey)return null;return onClick($event)}}})}`
     )
     assertCodegen(
       '<input @click.ctrl.exact="onClick">',
-      `with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;if($event.shiftKey||$event.altKey||$event.metaKey)return null;onClick($event)}}})}`
+      `with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;if($event.shiftKey||$event.altKey||$event.metaKey)return null;return onClick($event)}}})}`
     )
   })
 
   it('generate events with multiple modifiers', () => {
     assertCodegen(
       '<input @input.stop.prevent.self="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();$event.preventDefault();if($event.target !== $event.currentTarget)return null;onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();$event.preventDefault();if($event.target !== $event.currentTarget)return null;return onInput($event)}}})}`
     )
   })
 
   it('generate events with capture modifier', () => {
     assertCodegen(
       '<input @input.capture="onInput">',
-      `with(this){return _c('input',{on:{"!input":function($event){onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"!input":function($event){return onInput($event)}}})}`
     )
   })
 
   it('generate events with once modifier', () => {
     assertCodegen(
       '<input @input.once="onInput">',
-      `with(this){return _c('input',{on:{"~input":function($event){onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"~input":function($event){return onInput($event)}}})}`
     )
   })
 
   it('generate events with capture and once modifier', () => {
     assertCodegen(
       '<input @input.capture.once="onInput">',
-      `with(this){return _c('input',{on:{"~!input":function($event){onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"~!input":function($event){return onInput($event)}}})}`
     )
   })
 
   it('generate events with once and capture modifier', () => {
     assertCodegen(
       '<input @input.once.capture="onInput">',
-      `with(this){return _c('input',{on:{"~!input":function($event){onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"~!input":function($event){return onInput($event)}}})}`
     )
   })
 
@@ -427,7 +472,7 @@ describe('codegen', () => {
     // with modifiers
     assertCodegen(
       `<input @keyup.enter="e=>current++">`,
-      `with(this){return _c('input',{on:{"keyup":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;(e=>current++)($event)}}})}`
+      `with(this){return _c('input',{on:{"keyup":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return (e=>current++)($event)}}})}`
     )
   })
 
@@ -452,7 +497,7 @@ describe('codegen', () => {
   it('generate multiple event handlers', () => {
     assertCodegen(
       '<input @input="current++" @input.stop="onInput">',
-      `with(this){return _c('input',{on:{"input":[function($event){current++},function($event){$event.stopPropagation();onInput($event)}]}})}`
+      `with(this){return _c('input',{on:{"input":[function($event){current++},function($event){$event.stopPropagation();return onInput($event)}]}})}`
     )
   })
 
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 8d07f76dc33..adcfc95eedc 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -25,6 +25,43 @@ describe('vdom patch: edge cases', () => {
     }).then(done)
   })
 
+  // exposed by #7705
+  // methods and function expressions with modifiers should return result instead of undefined
+  // skipped odd children[1,3, ...] because they are rendered as text nodes with undefined value
+  it('should return listener\'s result for method name and function expression with and w/o modifiers', done => {
+    const dummyEvt = { preventDefault: () => {} }
+    new Vue({
+      template: `
+        <div v-test>
+          <div @click="addFive"></div>
+          <div @click.prevent="addFive"></div>
+          <div @click="addFive($event, 5)"></div>
+          <div @click.prevent="addFive($event, 5)"></div>
+        </div>
+      `,
+      methods: {
+        addFive ($event, toAdd = 0) {
+          return toAdd + 5
+        }
+      },
+      directives: {
+        test: {
+          bind (el, binding, vnode) {
+            waitForUpdate(() => {
+              expect(vnode.children[0].data.on.click()).toBe(5)
+            }).then(() => {
+              expect(vnode.children[2].data.on.click(dummyEvt)).toBe(5)
+            }).then(() => {
+              expect(vnode.children[4].data.on.click()).not.toBeDefined()
+            }).then(() => {
+              expect(vnode.children[6].data.on.click(dummyEvt)).not.toBeDefined()
+            }).then(done)
+          }
+        }
+      }
+    }).$mount()
+  })
+
   // #3533
   // a static node is reused in createElm, which changes its elm reference
   // and is inserted into a different parent.

From d7d9b002fd60d246b1ef65f71b55b45f46563b4d Mon Sep 17 00:00:00 2001
From: Pig Fang <g-plane@hotmail.com>
Date: Fri, 9 Mar 2018 07:54:55 -0600
Subject: [PATCH 424/911] chore: fix typo (#7781)

---
 src/core/vdom/vnode.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index c2daed6b331..88e80cec17c 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -26,7 +26,7 @@ export default class VNode {
   ssrContext: Object | void;
   fnContext: Component | void; // real context vm for functional nodes
   fnOptions: ?ComponentOptions; // for SSR caching
-  fnScopeId: ?string; // functioanl scope id support
+  fnScopeId: ?string; // functional scope id support
 
   constructor (
     tag?: string,

From 318f29fcdf3372ff57a09be6d1dc595d14c92e70 Mon Sep 17 00:00:00 2001
From: AchillesJ <xujiongbo@gmail.com>
Date: Sat, 10 Mar 2018 02:13:16 +0800
Subject: [PATCH 425/911] fix(core): disable dependency collection in lifecycle
 hooks and data getter (#7596)

This fixes the parent being updated more than necessary due to collecting child props
as dependencies during its own update computation.

fix #7573
---
 src/core/instance/lifecycle.js          |  4 ++++
 src/core/instance/state.js              |  6 ++++-
 src/core/observer/dep.js                |  2 +-
 test/unit/features/options/data.spec.js | 32 +++++++++++++++++++++++++
 4 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 27756af66fc..c9c3b43c1ae 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -7,6 +7,7 @@ import { createEmptyVNode } from '../vdom/vnode'
 import { observerState } from '../observer/index'
 import { updateComponentListeners } from './events'
 import { resolveSlots } from './render-helpers/resolve-slots'
+import { pushTarget, popTarget } from '../observer/dep'
 
 import {
   warn,
@@ -315,6 +316,8 @@ export function deactivateChildComponent (vm: Component, direct?: boolean) {
 }
 
 export function callHook (vm: Component, hook: string) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget()
   const handlers = vm.$options[hook]
   if (handlers) {
     for (let i = 0, j = handlers.length; i < j; i++) {
@@ -328,4 +331,5 @@ export function callHook (vm: Component, hook: string) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook)
   }
+  popTarget()
 }
diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index ddabe12a0c3..3a395c84a1f 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -1,8 +1,8 @@
 /* @flow */
 
 import config from '../config'
-import Dep from '../observer/dep'
 import Watcher from '../observer/watcher'
+import Dep, { pushTarget, popTarget } from '../observer/dep'
 import { isUpdatingChildComponent } from './lifecycle'
 
 import {
@@ -150,11 +150,15 @@ function initData (vm: Component) {
 }
 
 export function getData (data: Function, vm: Component): any {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget()
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, `data()`)
     return {}
+  } finally {
+    popTarget()
   }
 }
 
diff --git a/src/core/observer/dep.js b/src/core/observer/dep.js
index 5d55e9cd421..abf3b275ce4 100644
--- a/src/core/observer/dep.js
+++ b/src/core/observer/dep.js
@@ -48,7 +48,7 @@ export default class Dep {
 Dep.target = null
 const targetStack = []
 
-export function pushTarget (_target: Watcher) {
+export function pushTarget (_target: ?Watcher) {
   if (Dep.target) targetStack.push(Dep.target)
   Dep.target = _target
 }
diff --git a/test/unit/features/options/data.spec.js b/test/unit/features/options/data.spec.js
index cb8a75ad18d..ac431bbd939 100644
--- a/test/unit/features/options/data.spec.js
+++ b/test/unit/features/options/data.spec.js
@@ -93,6 +93,38 @@ describe('Options data', () => {
     expect(vm.$refs.test.b).toBe(1)
   })
 
+  it('props should not be reactive', done => {
+    let calls = 0
+    const vm = new Vue({
+      template: `<child :msg="msg"></child>`,
+      data: {
+        msg: 'hello'
+      },
+      beforeUpdate () { calls++ },
+      components: {
+        child: {
+          template: `<span>{{ localMsg }}</span>`,
+          props: ['msg'],
+          data () {
+            return { localMsg: this.msg }
+          },
+          computed: {
+            computedMsg () {
+              return this.msg + ' world'
+            }
+          }
+        }
+      }
+    }).$mount()
+    const child = vm.$children[0]
+    vm.msg = 'hi'
+    waitForUpdate(() => {
+      expect(child.localMsg).toBe('hello')
+      expect(child.computedMsg).toBe('hi world')
+      expect(calls).toBe(1)
+    }).then(done)
+  })
+
   it('should have access to methods', () => {
     const vm = new Vue({
       methods: {

From a2cd412876c68ff0fac8e70c82676684c6f82770 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Mar 2018 12:39:22 -0500
Subject: [PATCH 426/911] refactor: observerState

---
 src/core/instance/inject.js    |  8 ++++----
 src/core/instance/lifecycle.js |  9 +++++----
 src/core/instance/state.js     | 10 ++++++----
 src/core/observer/index.js     | 14 +++++++-------
 src/core/util/props.js         |  8 ++++----
 5 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index 247b45f4741..e464e12a997 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -1,8 +1,8 @@
 /* @flow */
 
-import { warn, hasSymbol } from '../util/index'
-import { defineReactive, observerState } from '../observer/index'
 import { hasOwn } from 'shared/util'
+import { warn, hasSymbol } from '../util/index'
+import { defineReactive, toggleObserving } from '../observer/index'
 
 export function initProvide (vm: Component) {
   const provide = vm.$options.provide
@@ -16,7 +16,7 @@ export function initProvide (vm: Component) {
 export function initInjections (vm: Component) {
   const result = resolveInject(vm.$options.inject, vm)
   if (result) {
-    observerState.shouldConvert = false
+    toggleObserving(false)
     Object.keys(result).forEach(key => {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
@@ -32,7 +32,7 @@ export function initInjections (vm: Component) {
         defineReactive(vm, key, result[key])
       }
     })
-    observerState.shouldConvert = true
+    toggleObserving(true)
   }
 }
 
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index c9c3b43c1ae..169a54a6bb3 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -4,9 +4,9 @@ import config from '../config'
 import Watcher from '../observer/watcher'
 import { mark, measure } from '../util/perf'
 import { createEmptyVNode } from '../vdom/vnode'
-import { observerState } from '../observer/index'
 import { updateComponentListeners } from './events'
 import { resolveSlots } from './render-helpers/resolve-slots'
+import { toggleObserving } from '../observer/index'
 import { pushTarget, popTarget } from '../observer/dep'
 
 import {
@@ -245,14 +245,15 @@ export function updateChildComponent (
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false
+    toggleObserving(false)
     const props = vm._props
     const propKeys = vm.$options._propKeys || []
     for (let i = 0; i < propKeys.length; i++) {
       const key = propKeys[i]
-      props[key] = validateProp(key, vm.$options.props, propsData, vm)
+      const propOptions: any = vm.$options.props // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm)
     }
-    observerState.shouldConvert = true
+    toggleObserving(true)
     // keep a copy of raw propsData
     vm.$options.propsData = propsData
   }
diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 3a395c84a1f..b1549b0dcc4 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -9,8 +9,8 @@ import {
   set,
   del,
   observe,
-  observerState,
-  defineReactive
+  defineReactive,
+  toggleObserving
 } from '../observer/index'
 
 import {
@@ -69,7 +69,9 @@ function initProps (vm: Component, propsOptions: Object) {
   const keys = vm.$options._propKeys = []
   const isRoot = !vm.$parent
   // root instance props should be converted
-  observerState.shouldConvert = isRoot
+  if (!isRoot) {
+    toggleObserving(false)
+  }
   for (const key in propsOptions) {
     keys.push(key)
     const value = validateProp(key, propsOptions, propsData, vm)
@@ -104,7 +106,7 @@ function initProps (vm: Component, propsOptions: Object) {
       proxy(vm, `_props`, key)
     }
   }
-  observerState.shouldConvert = true
+  toggleObserving(true)
 }
 
 function initData (vm: Component) {
diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index da3121032e5..49d28a291d5 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -17,13 +17,13 @@ import {
 const arrayKeys = Object.getOwnPropertyNames(arrayMethods)
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-export const observerState = {
-  shouldConvert: true
+export let shouldObserve: boolean = true
+
+export function toggleObserving (value: boolean) {
+  shouldObserve = value
 }
 
 /**
@@ -112,7 +112,7 @@ export function observe (value: any, asRootData: ?boolean): Observer | void {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
diff --git a/src/core/util/props.js b/src/core/util/props.js
index bea6c92691e..4d55b877c40 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -1,7 +1,7 @@
 /* @flow */
 
 import { warn } from './debug'
-import { observe, observerState } from '../observer/index'
+import { observe, toggleObserving, shouldObserve } from '../observer/index'
 import {
   hasOwn,
   isObject,
@@ -40,10 +40,10 @@ export function validateProp (
     value = getPropDefaultValue(vm, prop, key)
     // since the default value is a fresh copy,
     // make sure to observe it.
-    const prevShouldConvert = observerState.shouldConvert
-    observerState.shouldConvert = true
+    const prevShouldObserve = shouldObserve
+    toggleObserving(true)
     observe(value)
-    observerState.shouldConvert = prevShouldConvert
+    toggleObserving(prevShouldObserve)
   }
   if (
     process.env.NODE_ENV !== 'production' &&

From 81e1e47cabbd479e2a285f03120944f1efffe749 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Mar 2018 14:46:00 -0500
Subject: [PATCH 427/911] fix: respect type order when boolean casting
 multi-typed props

fix #7485
---
 src/core/util/props.js                   | 33 +++++++++++++++---------
 test/unit/features/options/props.spec.js | 17 ++++++++++++
 2 files changed, 38 insertions(+), 12 deletions(-)

diff --git a/src/core/util/props.js b/src/core/util/props.js
index 4d55b877c40..a92643f9d2a 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -27,12 +27,18 @@ export function validateProp (
   const prop = propOptions[key]
   const absent = !hasOwn(propsData, key)
   let value = propsData[key]
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  const booleanIndex = getTypeIndex(Boolean, prop.type)
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      const stringIndex = getTypeIndex(String, prop.type)
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true
+      }
     }
   }
   // check default value
@@ -179,15 +185,18 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes): number {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (let i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (let i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index ae2baefff99..bdb6cdaa8f5 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -512,4 +512,21 @@ describe('Options props', () => {
       expect(`"${attr}" is a reserved attribute`).toHaveBeenWarned()
     })
   })
+
+  it('should consider order when casting [Boolean, String] multi-type props', () => {
+    const vm = new Vue({
+      template: '<test ref="test" booleanOrString stringOrBoolean />',
+      components: {
+        test: {
+          template: '<div></div>',
+          props: {
+            booleanOrString: [Boolean, String],
+            stringOrBoolean: [String, Boolean]
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$refs.test.$props.booleanOrString).toBe(true)
+    expect(vm.$refs.test.$props.stringOrBoolean).toBe('')
+  })
 })

From 83ea0da4b0d39ea97dab8059a7442610f116e4b5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Mar 2018 16:29:00 -0500
Subject: [PATCH 428/911] chore: coverage

---
 src/platforms/web/runtime/node-ops.js | 4 ----
 src/shared/util.js                    | 2 ++
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/platforms/web/runtime/node-ops.js b/src/platforms/web/runtime/node-ops.js
index 183524ff623..3a2978a75dd 100644
--- a/src/platforms/web/runtime/node-ops.js
+++ b/src/platforms/web/runtime/node-ops.js
@@ -54,10 +54,6 @@ export function setTextContent (node: Node, text: string) {
   node.textContent = text
 }
 
-export function setAttribute (node: Element, key: string, val: string) {
-  node.setAttribute(key, val)
-}
-
 export function setStyleScope (node: Element, scopeId: string) {
   node.setAttribute(scopeId, '')
 }
diff --git a/src/shared/util.js b/src/shared/util.js
index 3a7664b76e9..e4884734326 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -180,6 +180,8 @@ export const hyphenate = cached((str: string): string => {
  * code that was able to run in PhantomJS 1.x, so this must be kept for
  * backwards compatibility.
  */
+
+/* istanbul ignore next */
 function polyfillBind (fn: Function, ctx: Object): Function {
   function boundFn (a) {
     const l = arguments.length

From 2c52c4265ba420ff47dc35eb1060a57c0813ee5d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Mar 2018 16:36:24 -0500
Subject: [PATCH 429/911] workflow: specify e2e env when releasing

---
 scripts/release.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/release.sh b/scripts/release.sh
index ea2acf2ff99..6592fd4023c 100644
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -16,7 +16,7 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
     npm run lint
     npm run flow
     npm run test:cover
-    npm run test:e2e
+    npm run test:e2e -- --env phantomjs
     npm run test:ssr
   fi
 

From a08feed8c410b89fa049fdbd6b9459e2d858e912 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Mar 2018 16:41:25 -0500
Subject: [PATCH 430/911] build: build 2.5.14

---
 dist/vue.common.js                          | 666 ++++++++++++--------
 dist/vue.esm.js                             | 666 ++++++++++++--------
 dist/vue.js                                 | 666 ++++++++++++--------
 dist/vue.min.js                             |   6 +-
 dist/vue.runtime.common.js                  | 575 ++++++++++-------
 dist/vue.runtime.esm.js                     | 575 ++++++++++-------
 dist/vue.runtime.js                         | 575 ++++++++++-------
 dist/vue.runtime.min.js                     |   6 +-
 packages/vue-server-renderer/basic.js       | 467 +++++++++-----
 packages/vue-server-renderer/build.js       | 491 +++++++++------
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   | 176 ++++--
 packages/vue-template-compiler/build.js     | 168 +++--
 packages/vue-template-compiler/package.json |   2 +-
 scripts/verify-commit-msg.js                |   2 +-
 15 files changed, 3098 insertions(+), 1945 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 662a74d3727..1b96113eafd 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 'use strict';
@@ -181,9 +181,15 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-function bind (fn, ctx) {
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
   function boundFn (a) {
     var l = arguments.length;
     return l
@@ -192,11 +198,19 @@ function bind (fn, ctx) {
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length;
   return boundFn
 }
 
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
 /**
  * Convert an Array-like object to a real Array.
  */
@@ -426,7 +440,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -470,7 +484,6 @@ function parsePath (path) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -509,7 +522,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -766,8 +779,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
+function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -775,7 +787,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -786,33 +798,18 @@ function cloneVNode (vnode, deep) {
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
   return cloned
 }
 
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -820,7 +817,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -851,20 +853,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -890,7 +892,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -940,7 +942,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -973,6 +975,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1019,6 +1024,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1049,6 +1060,12 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot delete reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
@@ -1515,12 +1532,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1528,10 +1551,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   if (
     process.env.NODE_ENV !== 'production' &&
@@ -1664,17 +1687,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1737,19 +1763,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 var microTimerFunc;
 var macroTimerFunc;
 var useMacroTask = false;
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1776,7 +1802,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   };
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
@@ -1796,7 +1822,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
@@ -1885,8 +1911,7 @@ if (process.env.NODE_ENV !== 'production') {
   };
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -2814,29 +2839,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -2890,6 +2916,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -2903,6 +2931,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -3047,7 +3076,7 @@ function queueWatcher (watcher) {
 
 /*  */
 
-var uid$2 = 0;
+var uid$1 = 0;
 
 /**
  * A watcher parses an expression, collects dependencies,
@@ -3076,7 +3105,7 @@ var Watcher = function Watcher (
     this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
-  this.id = ++uid$2; // uid for batching
+  this.id = ++uid$1; // uid for batching
   this.active = true;
   this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
@@ -3301,7 +3330,9 @@ function initProps (vm, propsOptions) {
   var keys = vm.$options._propKeys = [];
   var isRoot = !vm.$parent;
   // root instance props should be converted
-  observerState.shouldConvert = isRoot;
+  if (!isRoot) {
+    toggleObserving(false);
+  }
   var loop = function ( key ) {
     keys.push(key);
     var value = validateProp(key, propsOptions, propsData, vm);
@@ -3338,7 +3369,7 @@ function initProps (vm, propsOptions) {
   };
 
   for (var key in propsOptions) loop( key );
-  observerState.shouldConvert = true;
+  toggleObserving(true);
 }
 
 function initData (vm) {
@@ -3384,11 +3415,15 @@ function initData (vm) {
 }
 
 function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
+  } finally {
+    popTarget();
   }
 }
 
@@ -3526,7 +3561,7 @@ function initWatch (vm, watch) {
 
 function createWatcher (
   vm,
-  keyOrFn,
+  expOrFn,
   handler,
   options
 ) {
@@ -3537,7 +3572,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3601,7 +3636,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
@@ -3617,7 +3652,7 @@ function initInjections (vm) {
         defineReactive(vm, key, result[key]);
       }
     });
-    observerState.shouldConvert = true;
+    toggleObserving(true);
   }
 }
 
@@ -3637,7 +3672,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -3752,6 +3787,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -3760,16 +3803,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -3841,11 +3883,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -3969,7 +4009,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -4012,14 +4052,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -4057,7 +4106,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -4065,10 +4122,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -4376,8 +4429,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -4394,13 +4450,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 function initRender (vm) {
@@ -4452,20 +4521,17 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    if (process.env.NODE_ENV !== 'production') {
       for (var key in vm.$slots) {
-        var slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
@@ -4513,13 +4579,13 @@ function renderMixin (Vue) {
 
 /*  */
 
-var uid$1 = 0;
+var uid$3 = 0;
 
 function initMixin (Vue) {
   Vue.prototype._init = function (options) {
     var vm = this;
     // a uid
-    vm._uid = uid$1++;
+    vm._uid = uid$3++;
 
     var startTag, endTag;
     /* istanbul ignore if */
@@ -4652,20 +4718,20 @@ function dedupe (latest, extended, sealed) {
   }
 }
 
-function Vue$3 (options) {
+function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue$3)
+    !(this instanceof Vue)
   ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
 }
 
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
 
 /*  */
 
@@ -4948,11 +5014,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-};
+}
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-};
+}
 
 /*  */
 
@@ -5000,20 +5066,25 @@ function initGlobalAPI (Vue) {
   initAssetRegisters(Vue);
 }
 
-initGlobalAPI(Vue$3);
+initGlobalAPI(Vue);
 
-Object.defineProperty(Vue$3.prototype, '$isServer', {
+Object.defineProperty(Vue.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+Object.defineProperty(Vue.prototype, '$ssrContext', {
   get: function get () {
     /* istanbul ignore next */
     return this.$vnode && this.$vnode.ssrContext
   }
 });
 
-Vue$3.version = '2.5.13';
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.14';
 
 /*  */
 
@@ -5287,8 +5358,8 @@ function setTextContent (node, text) {
   node.textContent = text;
 }
 
-function setAttribute (node, key, val) {
-  node.setAttribute(key, val);
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
 }
 
 
@@ -5304,7 +5375,7 @@ var nodeOps = Object.freeze({
 	nextSibling: nextSibling,
 	tagName: tagName,
 	setTextContent: setTextContent,
-	setAttribute: setAttribute
+	setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5322,11 +5393,11 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-};
+}
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
-  if (!key) { return }
+  if (!isDef(key)) { return }
 
   var vm = vnode.context;
   var ref = vnode.componentInstance || vnode.elm;
@@ -5457,7 +5528,25 @@ function createPatchFunction (backend) {
   }
 
   var creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -5480,6 +5569,7 @@ function createPatchFunction (backend) {
           );
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode);
@@ -5585,7 +5675,7 @@ function createPatchFunction (backend) {
         checkDuplicateKeys(children);
       }
       for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
       }
     } else if (isPrimitive(vnode.text)) {
       nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
@@ -5616,12 +5706,12 @@ function createPatchFunction (backend) {
   function setScope (vnode) {
     var i;
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     } else {
       var ancestor = vnode;
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
+          nodeOps.setStyleScope(vnode.elm, i);
         }
         ancestor = ancestor.parent;
       }
@@ -5632,13 +5722,13 @@ function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     }
   }
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
     }
   }
 
@@ -5748,7 +5838,7 @@ function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -5757,7 +5847,7 @@ function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
           }
         }
         newStartVnode = newCh[++newStartIdx];
@@ -6095,7 +6185,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-};
+}
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6206,7 +6296,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-];
+]
 
 /*  */
 
@@ -6252,7 +6342,9 @@ function updateAttrs (oldVnode, vnode) {
 }
 
 function setAttr (el, key, value) {
-  if (isBooleanAttr(key)) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
     // set attribute for blank value
     // e.g. <option disabled>Select one</option>
     if (isFalsyAttrValue(value)) {
@@ -6274,35 +6366,39 @@ function setAttr (el, key, value) {
       el.setAttributeNS(xlinkNS, key, value);
     }
   } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // #7138: IE10 & 11 fires input event when setting placeholder on
-      // <textarea>... block the first input event and remove the blocker
-      // immediately.
-      /* istanbul ignore if */
-      if (
-        isIE && !isIE9 &&
-        el.tagName === 'TEXTAREA' &&
-        key === 'placeholder' && !el.__ieph
-      ) {
-        var blocker = function (e) {
-          e.stopImmediatePropagation();
-          el.removeEventListener('input', blocker);
-        };
-        el.addEventListener('input', blocker);
-        // $flow-disable-line
-        el.__ieph = true; /* IE placeholder patched */
-      }
-      el.setAttribute(key, value);
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
     }
+    el.setAttribute(key, value);
   }
 }
 
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-};
+}
 
 /*  */
 
@@ -6340,7 +6436,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-};
+}
 
 /*  */
 
@@ -6436,7 +6532,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -6539,7 +6635,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -6619,8 +6717,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -6674,6 +6772,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -6834,8 +6935,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
   );
@@ -6878,9 +6979,11 @@ function genDefaultModel (
   var type = el.attrsMap.type;
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   if (process.env.NODE_ENV !== 'production') {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value$1) {
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$1(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
@@ -7001,7 +7104,7 @@ function updateDOMListeners (oldVnode, vnode) {
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-};
+}
 
 /*  */
 
@@ -7095,7 +7198,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-};
+}
 
 /*  */
 
@@ -7256,7 +7359,7 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-};
+}
 
 /*  */
 
@@ -7629,13 +7732,15 @@ function enter (vnode, toggleDisplay) {
     addTransitionClass(el, startClass);
     addTransitionClass(el, activeClass);
     nextFrame(function () {
-      addTransitionClass(el, toClass);
       removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
         }
       }
     });
@@ -7735,13 +7840,15 @@ function leave (vnode, rm) {
       addTransitionClass(el, leaveClass);
       addTransitionClass(el, leaveActiveClass);
       nextFrame(function () {
-        addTransitionClass(el, leaveToClass);
         removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
           }
         }
       });
@@ -7814,7 +7921,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {};
+} : {}
 
 var platformModules = [
   attrs,
@@ -7823,7 +7930,7 @@ var platformModules = [
   domProps,
   style,
   transition
-];
+]
 
 /*  */
 
@@ -7864,15 +7971,13 @@ var directive = {
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
       if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
         // Safari < 10.2 & UIWebView doesn't fire compositionend when
         // switching focus before confirming composition choice
         // this also fixes the issue where some browsers e.g. iOS Chrome
         // fires "change" instead of "input" on autocomplete.
         el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
         /* istanbul ignore if */
         if (isIE9) {
           el.vmodel = true;
@@ -8006,7 +8111,7 @@ var show = {
     var oldValue = ref.oldValue;
 
     /* istanbul ignore if */
-    if (value === oldValue) { return }
+    if (!value === !oldValue) { return }
     vnode = locateNode(vnode);
     var transition$$1 = vnode.data && vnode.data.transition;
     if (transition$$1) {
@@ -8036,12 +8141,12 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-};
+}
 
 var platformDirectives = {
   model: directive,
   show: show
-};
+}
 
 /*  */
 
@@ -8230,7 +8335,7 @@ var Transition = {
 
     return rawChild
   }
-};
+}
 
 /*  */
 
@@ -8304,7 +8409,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important avoids unnecessary moves)
+      true // removeOnly (!important, avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -8371,7 +8476,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-};
+}
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -8404,26 +8509,26 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-};
+}
 
 /*  */
 
 // install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
 
 // install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
 
 // install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
 
 // public mount method
-Vue$3.prototype.$mount = function (
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -8433,28 +8538,35 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-Vue$3.nextTick(function () {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if (process.env.NODE_ENV !== 'production' && isChrome) {
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        process.env.NODE_ENV !== 'production' &&
+        process.env.NODE_ENV !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (process.env.NODE_ENV !== 'production' &&
+      process.env.NODE_ENV !== 'test' &&
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
       console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
       );
     }
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      "You are running Vue in development mode.\n" +
-      "Make sure to turn on production mode when deploying for production.\n" +
-      "See more tips at https://vuejs.org/guide/deployment.html"
-    );
-  }
-}, 0);
+  }, 0);
+}
 
 /*  */
 
@@ -8544,7 +8656,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-};
+}
 
 /*  */
 
@@ -8588,7 +8700,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-};
+}
 
 /*  */
 
@@ -8600,7 +8712,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-};
+}
 
 /*  */
 
@@ -8646,7 +8758,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -8776,7 +8889,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -9274,6 +9387,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -9596,8 +9711,19 @@ function checkForAliasModel (el, value) {
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      var typeBinding = getBindingAttr(el, 'type');
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
       var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
@@ -9650,13 +9776,13 @@ function cloneASTElement (el) {
 
 var model$2 = {
   preTransformNode: preTransformNode
-};
+}
 
 var modules$1 = [
   klass$1,
   style$1,
   model$2
-];
+]
 
 /*  */
 
@@ -9678,7 +9804,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-};
+}
 
 /*  */
 
@@ -9824,10 +9950,10 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -9840,6 +9966,19 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -9922,9 +10061,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
@@ -9940,12 +10079,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -9972,7 +10114,7 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
@@ -10723,8 +10865,8 @@ var idToTemplate = cached(function (id) {
   return el && el.innerHTML
 });
 
-var mount = Vue$3.prototype.$mount;
-Vue$3.prototype.$mount = function (
+var mount = Vue.prototype.$mount;
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -10806,6 +10948,6 @@ function getOuterHTML (el) {
   }
 }
 
-Vue$3.compile = compileToFunctions;
+Vue.compile = compileToFunctions;
 
-module.exports = Vue$3;
+module.exports = Vue;
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 399ecae7c4a..236cda09b7d 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 /*  */
@@ -179,9 +179,15 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-function bind (fn, ctx) {
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
   function boundFn (a) {
     var l = arguments.length;
     return l
@@ -190,11 +196,19 @@ function bind (fn, ctx) {
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length;
   return boundFn
 }
 
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
 /**
  * Convert an Array-like object to a real Array.
  */
@@ -424,7 +438,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -468,7 +482,6 @@ function parsePath (path) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -507,7 +520,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -764,8 +777,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
+function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -773,7 +785,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -784,33 +796,18 @@ function cloneVNode (vnode, deep) {
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
   return cloned
 }
 
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -818,7 +815,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -849,20 +851,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -888,7 +890,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -938,7 +940,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -971,6 +973,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1017,6 +1022,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1047,6 +1058,12 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot delete reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
@@ -1513,12 +1530,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1526,10 +1549,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   if (
     process.env.NODE_ENV !== 'production' &&
@@ -1662,17 +1685,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1735,19 +1761,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 var microTimerFunc;
 var macroTimerFunc;
 var useMacroTask = false;
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1774,7 +1800,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   };
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
@@ -1794,7 +1820,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
@@ -1883,8 +1909,7 @@ if (process.env.NODE_ENV !== 'production') {
   };
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -2812,29 +2837,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -2888,6 +2914,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -2901,6 +2929,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -3045,7 +3074,7 @@ function queueWatcher (watcher) {
 
 /*  */
 
-var uid$2 = 0;
+var uid$1 = 0;
 
 /**
  * A watcher parses an expression, collects dependencies,
@@ -3074,7 +3103,7 @@ var Watcher = function Watcher (
     this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
-  this.id = ++uid$2; // uid for batching
+  this.id = ++uid$1; // uid for batching
   this.active = true;
   this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
@@ -3299,7 +3328,9 @@ function initProps (vm, propsOptions) {
   var keys = vm.$options._propKeys = [];
   var isRoot = !vm.$parent;
   // root instance props should be converted
-  observerState.shouldConvert = isRoot;
+  if (!isRoot) {
+    toggleObserving(false);
+  }
   var loop = function ( key ) {
     keys.push(key);
     var value = validateProp(key, propsOptions, propsData, vm);
@@ -3336,7 +3367,7 @@ function initProps (vm, propsOptions) {
   };
 
   for (var key in propsOptions) loop( key );
-  observerState.shouldConvert = true;
+  toggleObserving(true);
 }
 
 function initData (vm) {
@@ -3382,11 +3413,15 @@ function initData (vm) {
 }
 
 function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
+  } finally {
+    popTarget();
   }
 }
 
@@ -3524,7 +3559,7 @@ function initWatch (vm, watch) {
 
 function createWatcher (
   vm,
-  keyOrFn,
+  expOrFn,
   handler,
   options
 ) {
@@ -3535,7 +3570,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3599,7 +3634,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
@@ -3615,7 +3650,7 @@ function initInjections (vm) {
         defineReactive(vm, key, result[key]);
       }
     });
-    observerState.shouldConvert = true;
+    toggleObserving(true);
   }
 }
 
@@ -3635,7 +3670,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -3750,6 +3785,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -3758,16 +3801,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -3839,11 +3881,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -3967,7 +4007,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -4010,14 +4050,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -4055,7 +4104,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -4063,10 +4120,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -4374,8 +4427,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -4392,13 +4448,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 function initRender (vm) {
@@ -4450,20 +4519,17 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    if (process.env.NODE_ENV !== 'production') {
       for (var key in vm.$slots) {
-        var slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
@@ -4511,13 +4577,13 @@ function renderMixin (Vue) {
 
 /*  */
 
-var uid$1 = 0;
+var uid$3 = 0;
 
 function initMixin (Vue) {
   Vue.prototype._init = function (options) {
     var vm = this;
     // a uid
-    vm._uid = uid$1++;
+    vm._uid = uid$3++;
 
     var startTag, endTag;
     /* istanbul ignore if */
@@ -4650,20 +4716,20 @@ function dedupe (latest, extended, sealed) {
   }
 }
 
-function Vue$3 (options) {
+function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue$3)
+    !(this instanceof Vue)
   ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
 }
 
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
 
 /*  */
 
@@ -4946,11 +5012,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-};
+}
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-};
+}
 
 /*  */
 
@@ -4998,20 +5064,25 @@ function initGlobalAPI (Vue) {
   initAssetRegisters(Vue);
 }
 
-initGlobalAPI(Vue$3);
+initGlobalAPI(Vue);
 
-Object.defineProperty(Vue$3.prototype, '$isServer', {
+Object.defineProperty(Vue.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+Object.defineProperty(Vue.prototype, '$ssrContext', {
   get: function get () {
     /* istanbul ignore next */
     return this.$vnode && this.$vnode.ssrContext
   }
 });
 
-Vue$3.version = '2.5.13';
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.14';
 
 /*  */
 
@@ -5285,8 +5356,8 @@ function setTextContent (node, text) {
   node.textContent = text;
 }
 
-function setAttribute (node, key, val) {
-  node.setAttribute(key, val);
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
 }
 
 
@@ -5302,7 +5373,7 @@ var nodeOps = Object.freeze({
 	nextSibling: nextSibling,
 	tagName: tagName,
 	setTextContent: setTextContent,
-	setAttribute: setAttribute
+	setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5320,11 +5391,11 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-};
+}
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
-  if (!key) { return }
+  if (!isDef(key)) { return }
 
   var vm = vnode.context;
   var ref = vnode.componentInstance || vnode.elm;
@@ -5455,7 +5526,25 @@ function createPatchFunction (backend) {
   }
 
   var creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -5478,6 +5567,7 @@ function createPatchFunction (backend) {
           );
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode);
@@ -5583,7 +5673,7 @@ function createPatchFunction (backend) {
         checkDuplicateKeys(children);
       }
       for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
       }
     } else if (isPrimitive(vnode.text)) {
       nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
@@ -5614,12 +5704,12 @@ function createPatchFunction (backend) {
   function setScope (vnode) {
     var i;
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     } else {
       var ancestor = vnode;
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
+          nodeOps.setStyleScope(vnode.elm, i);
         }
         ancestor = ancestor.parent;
       }
@@ -5630,13 +5720,13 @@ function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     }
   }
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
     }
   }
 
@@ -5746,7 +5836,7 @@ function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -5755,7 +5845,7 @@ function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
           }
         }
         newStartVnode = newCh[++newStartIdx];
@@ -6093,7 +6183,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-};
+}
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6204,7 +6294,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-];
+]
 
 /*  */
 
@@ -6250,7 +6340,9 @@ function updateAttrs (oldVnode, vnode) {
 }
 
 function setAttr (el, key, value) {
-  if (isBooleanAttr(key)) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
     // set attribute for blank value
     // e.g. <option disabled>Select one</option>
     if (isFalsyAttrValue(value)) {
@@ -6272,35 +6364,39 @@ function setAttr (el, key, value) {
       el.setAttributeNS(xlinkNS, key, value);
     }
   } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // #7138: IE10 & 11 fires input event when setting placeholder on
-      // <textarea>... block the first input event and remove the blocker
-      // immediately.
-      /* istanbul ignore if */
-      if (
-        isIE && !isIE9 &&
-        el.tagName === 'TEXTAREA' &&
-        key === 'placeholder' && !el.__ieph
-      ) {
-        var blocker = function (e) {
-          e.stopImmediatePropagation();
-          el.removeEventListener('input', blocker);
-        };
-        el.addEventListener('input', blocker);
-        // $flow-disable-line
-        el.__ieph = true; /* IE placeholder patched */
-      }
-      el.setAttribute(key, value);
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
     }
+    el.setAttribute(key, value);
   }
 }
 
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-};
+}
 
 /*  */
 
@@ -6338,7 +6434,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-};
+}
 
 /*  */
 
@@ -6434,7 +6530,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -6537,7 +6633,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -6617,8 +6715,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -6672,6 +6770,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -6832,8 +6933,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
   );
@@ -6876,9 +6977,11 @@ function genDefaultModel (
   var type = el.attrsMap.type;
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   if (process.env.NODE_ENV !== 'production') {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value$1) {
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$1(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
@@ -6999,7 +7102,7 @@ function updateDOMListeners (oldVnode, vnode) {
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-};
+}
 
 /*  */
 
@@ -7093,7 +7196,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-};
+}
 
 /*  */
 
@@ -7254,7 +7357,7 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-};
+}
 
 /*  */
 
@@ -7627,13 +7730,15 @@ function enter (vnode, toggleDisplay) {
     addTransitionClass(el, startClass);
     addTransitionClass(el, activeClass);
     nextFrame(function () {
-      addTransitionClass(el, toClass);
       removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
         }
       }
     });
@@ -7733,13 +7838,15 @@ function leave (vnode, rm) {
       addTransitionClass(el, leaveClass);
       addTransitionClass(el, leaveActiveClass);
       nextFrame(function () {
-        addTransitionClass(el, leaveToClass);
         removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
           }
         }
       });
@@ -7812,7 +7919,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {};
+} : {}
 
 var platformModules = [
   attrs,
@@ -7821,7 +7928,7 @@ var platformModules = [
   domProps,
   style,
   transition
-];
+]
 
 /*  */
 
@@ -7862,15 +7969,13 @@ var directive = {
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
       if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
         // Safari < 10.2 & UIWebView doesn't fire compositionend when
         // switching focus before confirming composition choice
         // this also fixes the issue where some browsers e.g. iOS Chrome
         // fires "change" instead of "input" on autocomplete.
         el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
         /* istanbul ignore if */
         if (isIE9) {
           el.vmodel = true;
@@ -8004,7 +8109,7 @@ var show = {
     var oldValue = ref.oldValue;
 
     /* istanbul ignore if */
-    if (value === oldValue) { return }
+    if (!value === !oldValue) { return }
     vnode = locateNode(vnode);
     var transition$$1 = vnode.data && vnode.data.transition;
     if (transition$$1) {
@@ -8034,12 +8139,12 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-};
+}
 
 var platformDirectives = {
   model: directive,
   show: show
-};
+}
 
 /*  */
 
@@ -8228,7 +8333,7 @@ var Transition = {
 
     return rawChild
   }
-};
+}
 
 /*  */
 
@@ -8302,7 +8407,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important avoids unnecessary moves)
+      true // removeOnly (!important, avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -8369,7 +8474,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-};
+}
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -8402,26 +8507,26 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-};
+}
 
 /*  */
 
 // install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
 
 // install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
 
 // install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
 
 // public mount method
-Vue$3.prototype.$mount = function (
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -8431,28 +8536,35 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-Vue$3.nextTick(function () {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if (process.env.NODE_ENV !== 'production' && isChrome) {
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        process.env.NODE_ENV !== 'production' &&
+        process.env.NODE_ENV !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (process.env.NODE_ENV !== 'production' &&
+      process.env.NODE_ENV !== 'test' &&
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
       console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
       );
     }
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      "You are running Vue in development mode.\n" +
-      "Make sure to turn on production mode when deploying for production.\n" +
-      "See more tips at https://vuejs.org/guide/deployment.html"
-    );
-  }
-}, 0);
+  }, 0);
+}
 
 /*  */
 
@@ -8542,7 +8654,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-};
+}
 
 /*  */
 
@@ -8586,7 +8698,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-};
+}
 
 /*  */
 
@@ -8598,7 +8710,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-};
+}
 
 /*  */
 
@@ -8644,7 +8756,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -8774,7 +8887,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -9272,6 +9385,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -9594,8 +9709,19 @@ function checkForAliasModel (el, value) {
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      var typeBinding = getBindingAttr(el, 'type');
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
       var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
@@ -9648,13 +9774,13 @@ function cloneASTElement (el) {
 
 var model$2 = {
   preTransformNode: preTransformNode
-};
+}
 
 var modules$1 = [
   klass$1,
   style$1,
   model$2
-];
+]
 
 /*  */
 
@@ -9676,7 +9802,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-};
+}
 
 /*  */
 
@@ -9822,10 +9948,10 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -9838,6 +9964,19 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -9920,9 +10059,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
@@ -9938,12 +10077,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -9970,7 +10112,7 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
@@ -10721,8 +10863,8 @@ var idToTemplate = cached(function (id) {
   return el && el.innerHTML
 });
 
-var mount = Vue$3.prototype.$mount;
-Vue$3.prototype.$mount = function (
+var mount = Vue.prototype.$mount;
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -10804,6 +10946,6 @@ function getOuterHTML (el) {
   }
 }
 
-Vue$3.compile = compileToFunctions;
+Vue.compile = compileToFunctions;
 
-export default Vue$3;
+export default Vue;
diff --git a/dist/vue.js b/dist/vue.js
index 9d84c53b4be..3322c22619b 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
@@ -185,9 +185,15 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-function bind (fn, ctx) {
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
   function boundFn (a) {
     var l = arguments.length;
     return l
@@ -196,11 +202,19 @@ function bind (fn, ctx) {
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length;
   return boundFn
 }
 
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
 /**
  * Convert an Array-like object to a real Array.
  */
@@ -430,7 +444,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -474,7 +488,6 @@ function parsePath (path) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -513,7 +526,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -770,8 +783,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
+function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -779,7 +791,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -790,33 +802,18 @@ function cloneVNode (vnode, deep) {
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
   return cloned
 }
 
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -824,7 +821,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -855,20 +857,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -894,7 +896,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -944,7 +946,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -977,6 +979,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1023,6 +1028,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if ("development" !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1053,6 +1064,12 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
+  if ("development" !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot delete reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
@@ -1519,12 +1536,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1532,10 +1555,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   {
     assertProp(prop, key, value, vm, absent);
@@ -1664,17 +1687,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1737,19 +1763,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 var microTimerFunc;
 var macroTimerFunc;
 var useMacroTask = false;
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1776,7 +1802,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   };
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
@@ -1796,7 +1822,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
@@ -1885,8 +1911,7 @@ var initProxy;
   };
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -2812,29 +2837,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -2888,6 +2914,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -2901,6 +2929,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -3045,7 +3074,7 @@ function queueWatcher (watcher) {
 
 /*  */
 
-var uid$2 = 0;
+var uid$1 = 0;
 
 /**
  * A watcher parses an expression, collects dependencies,
@@ -3074,7 +3103,7 @@ var Watcher = function Watcher (
     this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
-  this.id = ++uid$2; // uid for batching
+  this.id = ++uid$1; // uid for batching
   this.active = true;
   this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
@@ -3297,7 +3326,9 @@ function initProps (vm, propsOptions) {
   var keys = vm.$options._propKeys = [];
   var isRoot = !vm.$parent;
   // root instance props should be converted
-  observerState.shouldConvert = isRoot;
+  if (!isRoot) {
+    toggleObserving(false);
+  }
   var loop = function ( key ) {
     keys.push(key);
     var value = validateProp(key, propsOptions, propsData, vm);
@@ -3332,7 +3363,7 @@ function initProps (vm, propsOptions) {
   };
 
   for (var key in propsOptions) loop( key );
-  observerState.shouldConvert = true;
+  toggleObserving(true);
 }
 
 function initData (vm) {
@@ -3378,11 +3409,15 @@ function initData (vm) {
 }
 
 function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
+  } finally {
+    popTarget();
   }
 }
 
@@ -3520,7 +3555,7 @@ function initWatch (vm, watch) {
 
 function createWatcher (
   vm,
-  keyOrFn,
+  expOrFn,
   handler,
   options
 ) {
@@ -3531,7 +3566,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3595,7 +3630,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       {
@@ -3609,7 +3644,7 @@ function initInjections (vm) {
         });
       }
     });
-    observerState.shouldConvert = true;
+    toggleObserving(true);
   }
 }
 
@@ -3629,7 +3664,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -3744,6 +3779,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -3752,16 +3795,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -3833,11 +3875,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -3961,7 +4001,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -4004,14 +4044,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -4049,7 +4098,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -4057,10 +4114,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -4368,8 +4421,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -4386,13 +4442,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 function initRender (vm) {
@@ -4441,20 +4510,17 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    {
       for (var key in vm.$slots) {
-        var slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
@@ -4500,13 +4566,13 @@ function renderMixin (Vue) {
 
 /*  */
 
-var uid$1 = 0;
+var uid$3 = 0;
 
 function initMixin (Vue) {
   Vue.prototype._init = function (options) {
     var vm = this;
     // a uid
-    vm._uid = uid$1++;
+    vm._uid = uid$3++;
 
     var startTag, endTag;
     /* istanbul ignore if */
@@ -4637,20 +4703,20 @@ function dedupe (latest, extended, sealed) {
   }
 }
 
-function Vue$3 (options) {
+function Vue (options) {
   if ("development" !== 'production' &&
-    !(this instanceof Vue$3)
+    !(this instanceof Vue)
   ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
 }
 
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
 
 /*  */
 
@@ -4933,11 +4999,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-};
+}
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-};
+}
 
 /*  */
 
@@ -4985,20 +5051,25 @@ function initGlobalAPI (Vue) {
   initAssetRegisters(Vue);
 }
 
-initGlobalAPI(Vue$3);
+initGlobalAPI(Vue);
 
-Object.defineProperty(Vue$3.prototype, '$isServer', {
+Object.defineProperty(Vue.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+Object.defineProperty(Vue.prototype, '$ssrContext', {
   get: function get () {
     /* istanbul ignore next */
     return this.$vnode && this.$vnode.ssrContext
   }
 });
 
-Vue$3.version = '2.5.13';
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.14';
 
 /*  */
 
@@ -5272,8 +5343,8 @@ function setTextContent (node, text) {
   node.textContent = text;
 }
 
-function setAttribute (node, key, val) {
-  node.setAttribute(key, val);
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
 }
 
 
@@ -5289,7 +5360,7 @@ var nodeOps = Object.freeze({
 	nextSibling: nextSibling,
 	tagName: tagName,
 	setTextContent: setTextContent,
-	setAttribute: setAttribute
+	setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5307,11 +5378,11 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-};
+}
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
-  if (!key) { return }
+  if (!isDef(key)) { return }
 
   var vm = vnode.context;
   var ref = vnode.componentInstance || vnode.elm;
@@ -5442,7 +5513,25 @@ function createPatchFunction (backend) {
   }
 
   var creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -5465,6 +5554,7 @@ function createPatchFunction (backend) {
           );
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode);
@@ -5570,7 +5660,7 @@ function createPatchFunction (backend) {
         checkDuplicateKeys(children);
       }
       for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
       }
     } else if (isPrimitive(vnode.text)) {
       nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
@@ -5601,12 +5691,12 @@ function createPatchFunction (backend) {
   function setScope (vnode) {
     var i;
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     } else {
       var ancestor = vnode;
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
+          nodeOps.setStyleScope(vnode.elm, i);
         }
         ancestor = ancestor.parent;
       }
@@ -5617,13 +5707,13 @@ function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     }
   }
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
     }
   }
 
@@ -5733,7 +5823,7 @@ function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -5742,7 +5832,7 @@ function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
           }
         }
         newStartVnode = newCh[++newStartIdx];
@@ -6080,7 +6170,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-};
+}
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6191,7 +6281,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-];
+]
 
 /*  */
 
@@ -6237,7 +6327,9 @@ function updateAttrs (oldVnode, vnode) {
 }
 
 function setAttr (el, key, value) {
-  if (isBooleanAttr(key)) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
     // set attribute for blank value
     // e.g. <option disabled>Select one</option>
     if (isFalsyAttrValue(value)) {
@@ -6259,35 +6351,39 @@ function setAttr (el, key, value) {
       el.setAttributeNS(xlinkNS, key, value);
     }
   } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // #7138: IE10 & 11 fires input event when setting placeholder on
-      // <textarea>... block the first input event and remove the blocker
-      // immediately.
-      /* istanbul ignore if */
-      if (
-        isIE && !isIE9 &&
-        el.tagName === 'TEXTAREA' &&
-        key === 'placeholder' && !el.__ieph
-      ) {
-        var blocker = function (e) {
-          e.stopImmediatePropagation();
-          el.removeEventListener('input', blocker);
-        };
-        el.addEventListener('input', blocker);
-        // $flow-disable-line
-        el.__ieph = true; /* IE placeholder patched */
-      }
-      el.setAttribute(key, value);
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
     }
+    el.setAttribute(key, value);
   }
 }
 
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-};
+}
 
 /*  */
 
@@ -6325,7 +6421,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-};
+}
 
 /*  */
 
@@ -6421,7 +6517,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -6524,7 +6620,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -6604,8 +6702,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -6659,6 +6757,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -6819,8 +6920,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
   );
@@ -6863,9 +6964,11 @@ function genDefaultModel (
   var type = el.attrsMap.type;
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value$1) {
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$1(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
@@ -6986,7 +7089,7 @@ function updateDOMListeners (oldVnode, vnode) {
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-};
+}
 
 /*  */
 
@@ -7080,7 +7183,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-};
+}
 
 /*  */
 
@@ -7241,7 +7344,7 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-};
+}
 
 /*  */
 
@@ -7614,13 +7717,15 @@ function enter (vnode, toggleDisplay) {
     addTransitionClass(el, startClass);
     addTransitionClass(el, activeClass);
     nextFrame(function () {
-      addTransitionClass(el, toClass);
       removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
         }
       }
     });
@@ -7720,13 +7825,15 @@ function leave (vnode, rm) {
       addTransitionClass(el, leaveClass);
       addTransitionClass(el, leaveActiveClass);
       nextFrame(function () {
-        addTransitionClass(el, leaveToClass);
         removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
           }
         }
       });
@@ -7799,7 +7906,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {};
+} : {}
 
 var platformModules = [
   attrs,
@@ -7808,7 +7915,7 @@ var platformModules = [
   domProps,
   style,
   transition
-];
+]
 
 /*  */
 
@@ -7849,15 +7956,13 @@ var directive = {
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
       if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
         // Safari < 10.2 & UIWebView doesn't fire compositionend when
         // switching focus before confirming composition choice
         // this also fixes the issue where some browsers e.g. iOS Chrome
         // fires "change" instead of "input" on autocomplete.
         el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
         /* istanbul ignore if */
         if (isIE9) {
           el.vmodel = true;
@@ -7991,7 +8096,7 @@ var show = {
     var oldValue = ref.oldValue;
 
     /* istanbul ignore if */
-    if (value === oldValue) { return }
+    if (!value === !oldValue) { return }
     vnode = locateNode(vnode);
     var transition$$1 = vnode.data && vnode.data.transition;
     if (transition$$1) {
@@ -8021,12 +8126,12 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-};
+}
 
 var platformDirectives = {
   model: directive,
   show: show
-};
+}
 
 /*  */
 
@@ -8215,7 +8320,7 @@ var Transition = {
 
     return rawChild
   }
-};
+}
 
 /*  */
 
@@ -8289,7 +8394,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important avoids unnecessary moves)
+      true // removeOnly (!important, avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -8356,7 +8461,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-};
+}
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -8389,26 +8494,26 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-};
+}
 
 /*  */
 
 // install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
 
 // install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
 
 // install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
 
 // public mount method
-Vue$3.prototype.$mount = function (
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -8418,28 +8523,35 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-Vue$3.nextTick(function () {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if ("development" !== 'production' && isChrome) {
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        "development" !== 'production' &&
+        "development" !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if ("development" !== 'production' &&
+      "development" !== 'test' &&
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
       console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
       );
     }
-  }
-  if ("development" !== 'production' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      "You are running Vue in development mode.\n" +
-      "Make sure to turn on production mode when deploying for production.\n" +
-      "See more tips at https://vuejs.org/guide/deployment.html"
-    );
-  }
-}, 0);
+  }, 0);
+}
 
 /*  */
 
@@ -8529,7 +8641,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-};
+}
 
 /*  */
 
@@ -8573,7 +8685,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-};
+}
 
 /*  */
 
@@ -8585,7 +8697,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-};
+}
 
 /*  */
 
@@ -8631,7 +8743,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -8761,7 +8874,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -9259,6 +9372,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -9581,8 +9696,19 @@ function checkForAliasModel (el, value) {
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      var typeBinding = getBindingAttr(el, 'type');
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
       var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
@@ -9635,13 +9761,13 @@ function cloneASTElement (el) {
 
 var model$2 = {
   preTransformNode: preTransformNode
-};
+}
 
 var modules$1 = [
   klass$1,
   style$1,
   model$2
-];
+]
 
 /*  */
 
@@ -9663,7 +9789,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-};
+}
 
 /*  */
 
@@ -9809,10 +9935,10 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -9825,6 +9951,19 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -9907,9 +10046,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
@@ -9925,12 +10064,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -9957,7 +10099,7 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
@@ -10708,8 +10850,8 @@ var idToTemplate = cached(function (id) {
   return el && el.innerHTML
 });
 
-var mount = Vue$3.prototype.$mount;
-Vue$3.prototype.$mount = function (
+var mount = Vue.prototype.$mount;
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -10791,8 +10933,8 @@ function getOuterHTML (el) {
   }
 }
 
-Vue$3.compile = compileToFunctions;
+Vue.compile = compileToFunctions;
 
-return Vue$3;
+return Vue;
 
 })));
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 836793b4caf..1e058e9fa7a 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function o(t){return"[object Object]"===Nn.call(t)}function a(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function s(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function c(t){var e=parseFloat(t);return isNaN(e)?t:e}function u(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function l(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function f(t,e){return Mn.call(t,e)}function p(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}function d(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n}function v(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function h(t,e){for(var n in e)t[n]=e[n];return t}function m(t){for(var e={},n=0;n<t.length;n++)t[n]&&h(e,t[n]);return e}function y(t,e,n){}function g(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var o=Array.isArray(t),a=Array.isArray(e);if(o&&a)return t.length===e.length&&t.every(function(t,n){return g(t,e[n])});if(o||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return g(t[n],e[n])})}catch(t){return!1}}function _(t,e){for(var n=0;n<t.length;n++)if(g(t[n],e))return n;return-1}function b(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}function $(t){var e=(t+"").charCodeAt(0);return 36===e||95===e}function C(t,e,n,r){Object.defineProperty(t,e,{value:n,enumerable:!!r,writable:!0,configurable:!0})}function w(t){return"function"==typeof t&&/native code/.test(t.toString())}function x(t){return new mr(void 0,void 0,void 0,String(t))}function k(t,e){var n=t.componentOptions,r=new mr(t.tag,t.data,t.children,t.text,t.elm,t.context,n,t.asyncFactory);return r.ns=t.ns,r.isStatic=t.isStatic,r.key=t.key,r.isComment=t.isComment,r.fnContext=t.fnContext,r.fnOptions=t.fnOptions,r.fnScopeId=t.fnScopeId,r.isCloned=!0,e&&(t.children&&(r.children=A(t.children,!0)),n&&n.children&&(n.children=A(n.children,!0))),r}function A(t,e){for(var n=t.length,r=new Array(n),i=0;i<n;i++)r[i]=k(t[i],e);return r}function O(t,e,n){t.__proto__=e}function S(t,e,n){for(var r=0,i=n.length;r<i;r++){var o=n[r];C(t,o,e[o])}}function T(t,e){if(i(t)&&!(t instanceof mr)){var n;return f(t,"__ob__")&&t.__ob__ instanceof 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 84f38f8ec5e..86a23f5efdf 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 'use strict';
@@ -181,9 +181,15 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-function bind (fn, ctx) {
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
   function boundFn (a) {
     var l = arguments.length;
     return l
@@ -192,11 +198,19 @@ function bind (fn, ctx) {
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length;
   return boundFn
 }
 
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
 /**
  * Convert an Array-like object to a real Array.
  */
@@ -422,7 +436,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -466,7 +480,6 @@ function parsePath (path) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -505,7 +518,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -650,14 +663,14 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 
-var uid$1 = 0;
+var uid = 0;
 
 /**
  * A dep is an observable that can have multiple
  * directives subscribing to it.
  */
 var Dep = function Dep () {
-  this.id = uid$1++;
+  this.id = uid++;
   this.subs = [];
 };
 
@@ -762,8 +775,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
+function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -771,7 +783,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -782,33 +794,18 @@ function cloneVNode (vnode, deep) {
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
   return cloned
 }
 
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -816,7 +813,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -847,20 +849,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -886,7 +888,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -936,7 +938,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -969,6 +971,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1015,6 +1020,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1045,6 +1056,12 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot delete reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
@@ -1511,12 +1528,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1524,10 +1547,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   if (
     process.env.NODE_ENV !== 'production' &&
@@ -1660,17 +1683,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1733,19 +1759,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 var microTimerFunc;
 var macroTimerFunc;
 var useMacroTask = false;
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1772,7 +1798,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   };
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
@@ -1792,7 +1818,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
@@ -1858,8 +1884,7 @@ if (process.env.NODE_ENV !== 'production') {
   };
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -2810,29 +2835,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -2886,6 +2912,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -2899,6 +2927,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -3043,7 +3072,7 @@ function queueWatcher (watcher) {
 
 /*  */
 
-var uid$2 = 0;
+var uid$1 = 0;
 
 /**
  * A watcher parses an expression, collects dependencies,
@@ -3072,7 +3101,7 @@ var Watcher = function Watcher (
     this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
-  this.id = ++uid$2; // uid for batching
+  this.id = ++uid$1; // uid for batching
   this.active = true;
   this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
@@ -3297,7 +3326,9 @@ function initProps (vm, propsOptions) {
   var keys = vm.$options._propKeys = [];
   var isRoot = !vm.$parent;
   // root instance props should be converted
-  observerState.shouldConvert = isRoot;
+  if (!isRoot) {
+    toggleObserving(false);
+  }
   var loop = function ( key ) {
     keys.push(key);
     var value = validateProp(key, propsOptions, propsData, vm);
@@ -3334,7 +3365,7 @@ function initProps (vm, propsOptions) {
   };
 
   for (var key in propsOptions) loop( key );
-  observerState.shouldConvert = true;
+  toggleObserving(true);
 }
 
 function initData (vm) {
@@ -3380,11 +3411,15 @@ function initData (vm) {
 }
 
 function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
+  } finally {
+    popTarget();
   }
 }
 
@@ -3522,7 +3557,7 @@ function initWatch (vm, watch) {
 
 function createWatcher (
   vm,
-  keyOrFn,
+  expOrFn,
   handler,
   options
 ) {
@@ -3533,7 +3568,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3597,7 +3632,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
@@ -3613,7 +3648,7 @@ function initInjections (vm) {
         defineReactive(vm, key, result[key]);
       }
     });
-    observerState.shouldConvert = true;
+    toggleObserving(true);
   }
 }
 
@@ -3633,7 +3668,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -3748,6 +3783,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -3756,16 +3799,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -3837,11 +3879,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -3965,7 +4005,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -4008,14 +4048,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -4053,7 +4102,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -4061,10 +4118,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -4372,8 +4425,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -4390,13 +4446,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 function initRender (vm) {
@@ -4448,20 +4517,17 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    if (process.env.NODE_ENV !== 'production') {
       for (var key in vm.$slots) {
-        var slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
@@ -4509,13 +4575,13 @@ function renderMixin (Vue) {
 
 /*  */
 
-var uid = 0;
+var uid$3 = 0;
 
 function initMixin (Vue) {
   Vue.prototype._init = function (options) {
     var vm = this;
     // a uid
-    vm._uid = uid++;
+    vm._uid = uid$3++;
 
     var startTag, endTag;
     /* istanbul ignore if */
@@ -4648,20 +4714,20 @@ function dedupe (latest, extended, sealed) {
   }
 }
 
-function Vue$3 (options) {
+function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue$3)
+    !(this instanceof Vue)
   ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
 }
 
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
 
 /*  */
 
@@ -4944,11 +5010,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-};
+}
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-};
+}
 
 /*  */
 
@@ -4996,20 +5062,25 @@ function initGlobalAPI (Vue) {
   initAssetRegisters(Vue);
 }
 
-initGlobalAPI(Vue$3);
+initGlobalAPI(Vue);
 
-Object.defineProperty(Vue$3.prototype, '$isServer', {
+Object.defineProperty(Vue.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+Object.defineProperty(Vue.prototype, '$ssrContext', {
   get: function get () {
     /* istanbul ignore next */
     return this.$vnode && this.$vnode.ssrContext
   }
 });
 
-Vue$3.version = '2.5.13';
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.14';
 
 /*  */
 
@@ -5283,8 +5354,8 @@ function setTextContent (node, text) {
   node.textContent = text;
 }
 
-function setAttribute (node, key, val) {
-  node.setAttribute(key, val);
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
 }
 
 
@@ -5300,7 +5371,7 @@ var nodeOps = Object.freeze({
 	nextSibling: nextSibling,
 	tagName: tagName,
 	setTextContent: setTextContent,
-	setAttribute: setAttribute
+	setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5318,11 +5389,11 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-};
+}
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
-  if (!key) { return }
+  if (!isDef(key)) { return }
 
   var vm = vnode.context;
   var ref = vnode.componentInstance || vnode.elm;
@@ -5453,7 +5524,25 @@ function createPatchFunction (backend) {
   }
 
   var creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -5476,6 +5565,7 @@ function createPatchFunction (backend) {
           );
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode);
@@ -5581,7 +5671,7 @@ function createPatchFunction (backend) {
         checkDuplicateKeys(children);
       }
       for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
       }
     } else if (isPrimitive(vnode.text)) {
       nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
@@ -5612,12 +5702,12 @@ function createPatchFunction (backend) {
   function setScope (vnode) {
     var i;
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     } else {
       var ancestor = vnode;
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
+          nodeOps.setStyleScope(vnode.elm, i);
         }
         ancestor = ancestor.parent;
       }
@@ -5628,13 +5718,13 @@ function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     }
   }
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
     }
   }
 
@@ -5744,7 +5834,7 @@ function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -5753,7 +5843,7 @@ function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
           }
         }
         newStartVnode = newCh[++newStartIdx];
@@ -6091,7 +6181,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-};
+}
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6202,7 +6292,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-];
+]
 
 /*  */
 
@@ -6248,7 +6338,9 @@ function updateAttrs (oldVnode, vnode) {
 }
 
 function setAttr (el, key, value) {
-  if (isBooleanAttr(key)) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
     // set attribute for blank value
     // e.g. <option disabled>Select one</option>
     if (isFalsyAttrValue(value)) {
@@ -6270,35 +6362,39 @@ function setAttr (el, key, value) {
       el.setAttributeNS(xlinkNS, key, value);
     }
   } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // #7138: IE10 & 11 fires input event when setting placeholder on
-      // <textarea>... block the first input event and remove the blocker
-      // immediately.
-      /* istanbul ignore if */
-      if (
-        isIE && !isIE9 &&
-        el.tagName === 'TEXTAREA' &&
-        key === 'placeholder' && !el.__ieph
-      ) {
-        var blocker = function (e) {
-          e.stopImmediatePropagation();
-          el.removeEventListener('input', blocker);
-        };
-        el.addEventListener('input', blocker);
-        // $flow-disable-line
-        el.__ieph = true; /* IE placeholder patched */
-      }
-      el.setAttribute(key, value);
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
     }
+    el.setAttribute(key, value);
   }
 }
 
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-};
+}
 
 /*  */
 
@@ -6336,7 +6432,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-};
+}
 
 /*  */
 
@@ -6463,7 +6559,7 @@ function updateDOMListeners (oldVnode, vnode) {
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-};
+}
 
 /*  */
 
@@ -6557,7 +6653,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-};
+}
 
 /*  */
 
@@ -6718,7 +6814,7 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-};
+}
 
 /*  */
 
@@ -7091,13 +7187,15 @@ function enter (vnode, toggleDisplay) {
     addTransitionClass(el, startClass);
     addTransitionClass(el, activeClass);
     nextFrame(function () {
-      addTransitionClass(el, toClass);
       removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
         }
       }
     });
@@ -7197,13 +7295,15 @@ function leave (vnode, rm) {
       addTransitionClass(el, leaveClass);
       addTransitionClass(el, leaveActiveClass);
       nextFrame(function () {
-        addTransitionClass(el, leaveToClass);
         removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
           }
         }
       });
@@ -7276,7 +7376,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {};
+} : {}
 
 var platformModules = [
   attrs,
@@ -7285,7 +7385,7 @@ var platformModules = [
   domProps,
   style,
   transition
-];
+]
 
 /*  */
 
@@ -7326,15 +7426,13 @@ var directive = {
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
       if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
         // Safari < 10.2 & UIWebView doesn't fire compositionend when
         // switching focus before confirming composition choice
         // this also fixes the issue where some browsers e.g. iOS Chrome
         // fires "change" instead of "input" on autocomplete.
         el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
         /* istanbul ignore if */
         if (isIE9) {
           el.vmodel = true;
@@ -7468,7 +7566,7 @@ var show = {
     var oldValue = ref.oldValue;
 
     /* istanbul ignore if */
-    if (value === oldValue) { return }
+    if (!value === !oldValue) { return }
     vnode = locateNode(vnode);
     var transition$$1 = vnode.data && vnode.data.transition;
     if (transition$$1) {
@@ -7498,12 +7596,12 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-};
+}
 
 var platformDirectives = {
   model: directive,
   show: show
-};
+}
 
 /*  */
 
@@ -7692,7 +7790,7 @@ var Transition = {
 
     return rawChild
   }
-};
+}
 
 /*  */
 
@@ -7766,7 +7864,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important avoids unnecessary moves)
+      true // removeOnly (!important, avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -7833,7 +7931,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-};
+}
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -7866,26 +7964,26 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-};
+}
 
 /*  */
 
 // install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
 
 // install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
 
 // install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
 
 // public mount method
-Vue$3.prototype.$mount = function (
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -7895,29 +7993,36 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-Vue$3.nextTick(function () {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if (process.env.NODE_ENV !== 'production' && isChrome) {
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        process.env.NODE_ENV !== 'production' &&
+        process.env.NODE_ENV !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (process.env.NODE_ENV !== 'production' &&
+      process.env.NODE_ENV !== 'test' &&
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
       console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
       );
     }
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      "You are running Vue in development mode.\n" +
-      "Make sure to turn on production mode when deploying for production.\n" +
-      "See more tips at https://vuejs.org/guide/deployment.html"
-    );
-  }
-}, 0);
+  }, 0);
+}
 
 /*  */
 
-module.exports = Vue$3;
+module.exports = Vue;
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 58ba539b72c..ba7915b7f96 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 /*  */
@@ -179,9 +179,15 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-function bind (fn, ctx) {
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
   function boundFn (a) {
     var l = arguments.length;
     return l
@@ -190,11 +196,19 @@ function bind (fn, ctx) {
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length;
   return boundFn
 }
 
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
 /**
  * Convert an Array-like object to a real Array.
  */
@@ -420,7 +434,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -464,7 +478,6 @@ function parsePath (path) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -503,7 +516,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -648,14 +661,14 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 
-var uid$1 = 0;
+var uid = 0;
 
 /**
  * A dep is an observable that can have multiple
  * directives subscribing to it.
  */
 var Dep = function Dep () {
-  this.id = uid$1++;
+  this.id = uid++;
   this.subs = [];
 };
 
@@ -760,8 +773,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
+function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -769,7 +781,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -780,33 +792,18 @@ function cloneVNode (vnode, deep) {
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
   return cloned
 }
 
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -814,7 +811,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -845,20 +847,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -884,7 +886,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -934,7 +936,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -967,6 +969,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1013,6 +1018,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1043,6 +1054,12 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot delete reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
@@ -1509,12 +1526,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1522,10 +1545,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   if (
     process.env.NODE_ENV !== 'production' &&
@@ -1658,17 +1681,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1731,19 +1757,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 var microTimerFunc;
 var macroTimerFunc;
 var useMacroTask = false;
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1770,7 +1796,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   };
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
@@ -1790,7 +1816,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
@@ -1856,8 +1882,7 @@ if (process.env.NODE_ENV !== 'production') {
   };
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -2808,29 +2833,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -2884,6 +2910,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -2897,6 +2925,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -3041,7 +3070,7 @@ function queueWatcher (watcher) {
 
 /*  */
 
-var uid$2 = 0;
+var uid$1 = 0;
 
 /**
  * A watcher parses an expression, collects dependencies,
@@ -3070,7 +3099,7 @@ var Watcher = function Watcher (
     this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
-  this.id = ++uid$2; // uid for batching
+  this.id = ++uid$1; // uid for batching
   this.active = true;
   this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
@@ -3295,7 +3324,9 @@ function initProps (vm, propsOptions) {
   var keys = vm.$options._propKeys = [];
   var isRoot = !vm.$parent;
   // root instance props should be converted
-  observerState.shouldConvert = isRoot;
+  if (!isRoot) {
+    toggleObserving(false);
+  }
   var loop = function ( key ) {
     keys.push(key);
     var value = validateProp(key, propsOptions, propsData, vm);
@@ -3332,7 +3363,7 @@ function initProps (vm, propsOptions) {
   };
 
   for (var key in propsOptions) loop( key );
-  observerState.shouldConvert = true;
+  toggleObserving(true);
 }
 
 function initData (vm) {
@@ -3378,11 +3409,15 @@ function initData (vm) {
 }
 
 function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
+  } finally {
+    popTarget();
   }
 }
 
@@ -3520,7 +3555,7 @@ function initWatch (vm, watch) {
 
 function createWatcher (
   vm,
-  keyOrFn,
+  expOrFn,
   handler,
   options
 ) {
@@ -3531,7 +3566,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3595,7 +3630,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
@@ -3611,7 +3646,7 @@ function initInjections (vm) {
         defineReactive(vm, key, result[key]);
       }
     });
-    observerState.shouldConvert = true;
+    toggleObserving(true);
   }
 }
 
@@ -3631,7 +3666,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -3746,6 +3781,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -3754,16 +3797,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -3835,11 +3877,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -3963,7 +4003,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -4006,14 +4046,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -4051,7 +4100,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -4059,10 +4116,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -4370,8 +4423,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -4388,13 +4444,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 function initRender (vm) {
@@ -4446,20 +4515,17 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    if (process.env.NODE_ENV !== 'production') {
       for (var key in vm.$slots) {
-        var slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
@@ -4507,13 +4573,13 @@ function renderMixin (Vue) {
 
 /*  */
 
-var uid = 0;
+var uid$3 = 0;
 
 function initMixin (Vue) {
   Vue.prototype._init = function (options) {
     var vm = this;
     // a uid
-    vm._uid = uid++;
+    vm._uid = uid$3++;
 
     var startTag, endTag;
     /* istanbul ignore if */
@@ -4646,20 +4712,20 @@ function dedupe (latest, extended, sealed) {
   }
 }
 
-function Vue$3 (options) {
+function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue$3)
+    !(this instanceof Vue)
   ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
 }
 
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
 
 /*  */
 
@@ -4942,11 +5008,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-};
+}
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-};
+}
 
 /*  */
 
@@ -4994,20 +5060,25 @@ function initGlobalAPI (Vue) {
   initAssetRegisters(Vue);
 }
 
-initGlobalAPI(Vue$3);
+initGlobalAPI(Vue);
 
-Object.defineProperty(Vue$3.prototype, '$isServer', {
+Object.defineProperty(Vue.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+Object.defineProperty(Vue.prototype, '$ssrContext', {
   get: function get () {
     /* istanbul ignore next */
     return this.$vnode && this.$vnode.ssrContext
   }
 });
 
-Vue$3.version = '2.5.13';
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.14';
 
 /*  */
 
@@ -5281,8 +5352,8 @@ function setTextContent (node, text) {
   node.textContent = text;
 }
 
-function setAttribute (node, key, val) {
-  node.setAttribute(key, val);
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
 }
 
 
@@ -5298,7 +5369,7 @@ var nodeOps = Object.freeze({
 	nextSibling: nextSibling,
 	tagName: tagName,
 	setTextContent: setTextContent,
-	setAttribute: setAttribute
+	setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5316,11 +5387,11 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-};
+}
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
-  if (!key) { return }
+  if (!isDef(key)) { return }
 
   var vm = vnode.context;
   var ref = vnode.componentInstance || vnode.elm;
@@ -5451,7 +5522,25 @@ function createPatchFunction (backend) {
   }
 
   var creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -5474,6 +5563,7 @@ function createPatchFunction (backend) {
           );
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode);
@@ -5579,7 +5669,7 @@ function createPatchFunction (backend) {
         checkDuplicateKeys(children);
       }
       for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
       }
     } else if (isPrimitive(vnode.text)) {
       nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
@@ -5610,12 +5700,12 @@ function createPatchFunction (backend) {
   function setScope (vnode) {
     var i;
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     } else {
       var ancestor = vnode;
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
+          nodeOps.setStyleScope(vnode.elm, i);
         }
         ancestor = ancestor.parent;
       }
@@ -5626,13 +5716,13 @@ function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     }
   }
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
     }
   }
 
@@ -5742,7 +5832,7 @@ function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -5751,7 +5841,7 @@ function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
           }
         }
         newStartVnode = newCh[++newStartIdx];
@@ -6089,7 +6179,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-};
+}
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6200,7 +6290,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-];
+]
 
 /*  */
 
@@ -6246,7 +6336,9 @@ function updateAttrs (oldVnode, vnode) {
 }
 
 function setAttr (el, key, value) {
-  if (isBooleanAttr(key)) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
     // set attribute for blank value
     // e.g. <option disabled>Select one</option>
     if (isFalsyAttrValue(value)) {
@@ -6268,35 +6360,39 @@ function setAttr (el, key, value) {
       el.setAttributeNS(xlinkNS, key, value);
     }
   } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // #7138: IE10 & 11 fires input event when setting placeholder on
-      // <textarea>... block the first input event and remove the blocker
-      // immediately.
-      /* istanbul ignore if */
-      if (
-        isIE && !isIE9 &&
-        el.tagName === 'TEXTAREA' &&
-        key === 'placeholder' && !el.__ieph
-      ) {
-        var blocker = function (e) {
-          e.stopImmediatePropagation();
-          el.removeEventListener('input', blocker);
-        };
-        el.addEventListener('input', blocker);
-        // $flow-disable-line
-        el.__ieph = true; /* IE placeholder patched */
-      }
-      el.setAttribute(key, value);
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
     }
+    el.setAttribute(key, value);
   }
 }
 
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-};
+}
 
 /*  */
 
@@ -6334,7 +6430,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-};
+}
 
 /*  */
 
@@ -6461,7 +6557,7 @@ function updateDOMListeners (oldVnode, vnode) {
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-};
+}
 
 /*  */
 
@@ -6555,7 +6651,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-};
+}
 
 /*  */
 
@@ -6716,7 +6812,7 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-};
+}
 
 /*  */
 
@@ -7089,13 +7185,15 @@ function enter (vnode, toggleDisplay) {
     addTransitionClass(el, startClass);
     addTransitionClass(el, activeClass);
     nextFrame(function () {
-      addTransitionClass(el, toClass);
       removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
         }
       }
     });
@@ -7195,13 +7293,15 @@ function leave (vnode, rm) {
       addTransitionClass(el, leaveClass);
       addTransitionClass(el, leaveActiveClass);
       nextFrame(function () {
-        addTransitionClass(el, leaveToClass);
         removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
           }
         }
       });
@@ -7274,7 +7374,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {};
+} : {}
 
 var platformModules = [
   attrs,
@@ -7283,7 +7383,7 @@ var platformModules = [
   domProps,
   style,
   transition
-];
+]
 
 /*  */
 
@@ -7324,15 +7424,13 @@ var directive = {
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
       if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
         // Safari < 10.2 & UIWebView doesn't fire compositionend when
         // switching focus before confirming composition choice
         // this also fixes the issue where some browsers e.g. iOS Chrome
         // fires "change" instead of "input" on autocomplete.
         el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
         /* istanbul ignore if */
         if (isIE9) {
           el.vmodel = true;
@@ -7466,7 +7564,7 @@ var show = {
     var oldValue = ref.oldValue;
 
     /* istanbul ignore if */
-    if (value === oldValue) { return }
+    if (!value === !oldValue) { return }
     vnode = locateNode(vnode);
     var transition$$1 = vnode.data && vnode.data.transition;
     if (transition$$1) {
@@ -7496,12 +7594,12 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-};
+}
 
 var platformDirectives = {
   model: directive,
   show: show
-};
+}
 
 /*  */
 
@@ -7690,7 +7788,7 @@ var Transition = {
 
     return rawChild
   }
-};
+}
 
 /*  */
 
@@ -7764,7 +7862,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important avoids unnecessary moves)
+      true // removeOnly (!important, avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -7831,7 +7929,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-};
+}
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -7864,26 +7962,26 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-};
+}
 
 /*  */
 
 // install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
 
 // install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
 
 // install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
 
 // public mount method
-Vue$3.prototype.$mount = function (
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -7893,29 +7991,36 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-Vue$3.nextTick(function () {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if (process.env.NODE_ENV !== 'production' && isChrome) {
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        process.env.NODE_ENV !== 'production' &&
+        process.env.NODE_ENV !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (process.env.NODE_ENV !== 'production' &&
+      process.env.NODE_ENV !== 'test' &&
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
       console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
       );
     }
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      "You are running Vue in development mode.\n" +
-      "Make sure to turn on production mode when deploying for production.\n" +
-      "See more tips at https://vuejs.org/guide/deployment.html"
-    );
-  }
-}, 0);
+  }, 0);
+}
 
 /*  */
 
-export default Vue$3;
+export default Vue;
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index c664f8b4c10..9f3ab881144 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
@@ -185,9 +185,15 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-function bind (fn, ctx) {
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
   function boundFn (a) {
     var l = arguments.length;
     return l
@@ -196,11 +202,19 @@ function bind (fn, ctx) {
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length;
   return boundFn
 }
 
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
 /**
  * Convert an Array-like object to a real Array.
  */
@@ -426,7 +440,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -470,7 +484,6 @@ function parsePath (path) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -509,7 +522,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -654,14 +667,14 @@ var formatComponentName = (noop);
 /*  */
 
 
-var uid$1 = 0;
+var uid = 0;
 
 /**
  * A dep is an observable that can have multiple
  * directives subscribing to it.
  */
 var Dep = function Dep () {
-  this.id = uid$1++;
+  this.id = uid++;
   this.subs = [];
 };
 
@@ -766,8 +779,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
+function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -775,7 +787,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -786,33 +798,18 @@ function cloneVNode (vnode, deep) {
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
   return cloned
 }
 
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -820,7 +817,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -851,20 +853,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -890,7 +892,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -940,7 +942,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -973,6 +975,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1019,6 +1024,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if ("development" !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1049,6 +1060,12 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
+  if ("development" !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot delete reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
@@ -1515,12 +1532,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1528,10 +1551,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   {
     assertProp(prop, key, value, vm, absent);
@@ -1660,17 +1683,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1733,19 +1759,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 var microTimerFunc;
 var macroTimerFunc;
 var useMacroTask = false;
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1772,7 +1798,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   };
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
@@ -1792,7 +1818,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
@@ -1858,8 +1884,7 @@ var initProxy;
   };
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -2808,29 +2833,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -2884,6 +2910,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -2897,6 +2925,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -3041,7 +3070,7 @@ function queueWatcher (watcher) {
 
 /*  */
 
-var uid$2 = 0;
+var uid$1 = 0;
 
 /**
  * A watcher parses an expression, collects dependencies,
@@ -3070,7 +3099,7 @@ var Watcher = function Watcher (
     this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
-  this.id = ++uid$2; // uid for batching
+  this.id = ++uid$1; // uid for batching
   this.active = true;
   this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
@@ -3293,7 +3322,9 @@ function initProps (vm, propsOptions) {
   var keys = vm.$options._propKeys = [];
   var isRoot = !vm.$parent;
   // root instance props should be converted
-  observerState.shouldConvert = isRoot;
+  if (!isRoot) {
+    toggleObserving(false);
+  }
   var loop = function ( key ) {
     keys.push(key);
     var value = validateProp(key, propsOptions, propsData, vm);
@@ -3328,7 +3359,7 @@ function initProps (vm, propsOptions) {
   };
 
   for (var key in propsOptions) loop( key );
-  observerState.shouldConvert = true;
+  toggleObserving(true);
 }
 
 function initData (vm) {
@@ -3374,11 +3405,15 @@ function initData (vm) {
 }
 
 function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
+  } finally {
+    popTarget();
   }
 }
 
@@ -3516,7 +3551,7 @@ function initWatch (vm, watch) {
 
 function createWatcher (
   vm,
-  keyOrFn,
+  expOrFn,
   handler,
   options
 ) {
@@ -3527,7 +3562,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3591,7 +3626,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       {
@@ -3605,7 +3640,7 @@ function initInjections (vm) {
         });
       }
     });
-    observerState.shouldConvert = true;
+    toggleObserving(true);
   }
 }
 
@@ -3625,7 +3660,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -3740,6 +3775,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -3748,16 +3791,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -3829,11 +3871,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -3957,7 +3997,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -4000,14 +4040,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -4045,7 +4094,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -4053,10 +4110,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -4364,8 +4417,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -4382,13 +4438,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 function initRender (vm) {
@@ -4437,20 +4506,17 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    {
       for (var key in vm.$slots) {
-        var slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
@@ -4496,13 +4562,13 @@ function renderMixin (Vue) {
 
 /*  */
 
-var uid = 0;
+var uid$3 = 0;
 
 function initMixin (Vue) {
   Vue.prototype._init = function (options) {
     var vm = this;
     // a uid
-    vm._uid = uid++;
+    vm._uid = uid$3++;
 
     var startTag, endTag;
     /* istanbul ignore if */
@@ -4633,20 +4699,20 @@ function dedupe (latest, extended, sealed) {
   }
 }
 
-function Vue$3 (options) {
+function Vue (options) {
   if ("development" !== 'production' &&
-    !(this instanceof Vue$3)
+    !(this instanceof Vue)
   ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
 }
 
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
 
 /*  */
 
@@ -4929,11 +4995,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-};
+}
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-};
+}
 
 /*  */
 
@@ -4981,20 +5047,25 @@ function initGlobalAPI (Vue) {
   initAssetRegisters(Vue);
 }
 
-initGlobalAPI(Vue$3);
+initGlobalAPI(Vue);
 
-Object.defineProperty(Vue$3.prototype, '$isServer', {
+Object.defineProperty(Vue.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
+Object.defineProperty(Vue.prototype, '$ssrContext', {
   get: function get () {
     /* istanbul ignore next */
     return this.$vnode && this.$vnode.ssrContext
   }
 });
 
-Vue$3.version = '2.5.13';
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.14';
 
 /*  */
 
@@ -5268,8 +5339,8 @@ function setTextContent (node, text) {
   node.textContent = text;
 }
 
-function setAttribute (node, key, val) {
-  node.setAttribute(key, val);
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
 }
 
 
@@ -5285,7 +5356,7 @@ var nodeOps = Object.freeze({
 	nextSibling: nextSibling,
 	tagName: tagName,
 	setTextContent: setTextContent,
-	setAttribute: setAttribute
+	setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5303,11 +5374,11 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-};
+}
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
-  if (!key) { return }
+  if (!isDef(key)) { return }
 
   var vm = vnode.context;
   var ref = vnode.componentInstance || vnode.elm;
@@ -5438,7 +5509,25 @@ function createPatchFunction (backend) {
   }
 
   var creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -5461,6 +5550,7 @@ function createPatchFunction (backend) {
           );
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode);
@@ -5566,7 +5656,7 @@ function createPatchFunction (backend) {
         checkDuplicateKeys(children);
       }
       for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
       }
     } else if (isPrimitive(vnode.text)) {
       nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
@@ -5597,12 +5687,12 @@ function createPatchFunction (backend) {
   function setScope (vnode) {
     var i;
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     } else {
       var ancestor = vnode;
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
+          nodeOps.setStyleScope(vnode.elm, i);
         }
         ancestor = ancestor.parent;
       }
@@ -5613,13 +5703,13 @@ function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     }
   }
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
     }
   }
 
@@ -5729,7 +5819,7 @@ function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -5738,7 +5828,7 @@ function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
           }
         }
         newStartVnode = newCh[++newStartIdx];
@@ -6076,7 +6166,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-};
+}
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6187,7 +6277,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-];
+]
 
 /*  */
 
@@ -6233,7 +6323,9 @@ function updateAttrs (oldVnode, vnode) {
 }
 
 function setAttr (el, key, value) {
-  if (isBooleanAttr(key)) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
     // set attribute for blank value
     // e.g. <option disabled>Select one</option>
     if (isFalsyAttrValue(value)) {
@@ -6255,35 +6347,39 @@ function setAttr (el, key, value) {
       el.setAttributeNS(xlinkNS, key, value);
     }
   } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // #7138: IE10 & 11 fires input event when setting placeholder on
-      // <textarea>... block the first input event and remove the blocker
-      // immediately.
-      /* istanbul ignore if */
-      if (
-        isIE && !isIE9 &&
-        el.tagName === 'TEXTAREA' &&
-        key === 'placeholder' && !el.__ieph
-      ) {
-        var blocker = function (e) {
-          e.stopImmediatePropagation();
-          el.removeEventListener('input', blocker);
-        };
-        el.addEventListener('input', blocker);
-        // $flow-disable-line
-        el.__ieph = true; /* IE placeholder patched */
-      }
-      el.setAttribute(key, value);
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
     }
+    el.setAttribute(key, value);
   }
 }
 
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-};
+}
 
 /*  */
 
@@ -6321,7 +6417,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-};
+}
 
 /*  */
 
@@ -6448,7 +6544,7 @@ function updateDOMListeners (oldVnode, vnode) {
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-};
+}
 
 /*  */
 
@@ -6542,7 +6638,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-};
+}
 
 /*  */
 
@@ -6703,7 +6799,7 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-};
+}
 
 /*  */
 
@@ -7076,13 +7172,15 @@ function enter (vnode, toggleDisplay) {
     addTransitionClass(el, startClass);
     addTransitionClass(el, activeClass);
     nextFrame(function () {
-      addTransitionClass(el, toClass);
       removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
         }
       }
     });
@@ -7182,13 +7280,15 @@ function leave (vnode, rm) {
       addTransitionClass(el, leaveClass);
       addTransitionClass(el, leaveActiveClass);
       nextFrame(function () {
-        addTransitionClass(el, leaveToClass);
         removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
           }
         }
       });
@@ -7261,7 +7361,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {};
+} : {}
 
 var platformModules = [
   attrs,
@@ -7270,7 +7370,7 @@ var platformModules = [
   domProps,
   style,
   transition
-];
+]
 
 /*  */
 
@@ -7311,15 +7411,13 @@ var directive = {
     } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
       el._vModifiers = binding.modifiers;
       if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
         // Safari < 10.2 & UIWebView doesn't fire compositionend when
         // switching focus before confirming composition choice
         // this also fixes the issue where some browsers e.g. iOS Chrome
         // fires "change" instead of "input" on autocomplete.
         el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
         /* istanbul ignore if */
         if (isIE9) {
           el.vmodel = true;
@@ -7453,7 +7551,7 @@ var show = {
     var oldValue = ref.oldValue;
 
     /* istanbul ignore if */
-    if (value === oldValue) { return }
+    if (!value === !oldValue) { return }
     vnode = locateNode(vnode);
     var transition$$1 = vnode.data && vnode.data.transition;
     if (transition$$1) {
@@ -7483,12 +7581,12 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-};
+}
 
 var platformDirectives = {
   model: directive,
   show: show
-};
+}
 
 /*  */
 
@@ -7677,7 +7775,7 @@ var Transition = {
 
     return rawChild
   }
-};
+}
 
 /*  */
 
@@ -7751,7 +7849,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important avoids unnecessary moves)
+      true // removeOnly (!important, avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -7818,7 +7916,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-};
+}
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -7851,26 +7949,26 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-};
+}
 
 /*  */
 
 // install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
 
 // install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
 
 // install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
 
 // public mount method
-Vue$3.prototype.$mount = function (
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -7880,31 +7978,38 @@ Vue$3.prototype.$mount = function (
 
 // devtools global hook
 /* istanbul ignore next */
-Vue$3.nextTick(function () {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if ("development" !== 'production' && isChrome) {
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        "development" !== 'production' &&
+        "development" !== 'test' &&
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if ("development" !== 'production' &&
+      "development" !== 'test' &&
+      config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
       console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
       );
     }
-  }
-  if ("development" !== 'production' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      "You are running Vue in development mode.\n" +
-      "Make sure to turn on production mode when deploying for production.\n" +
-      "See more tips at https://vuejs.org/guide/deployment.html"
-    );
-  }
-}, 0);
+  }, 0);
+}
 
 /*  */
 
-return Vue$3;
+return Vue;
 
 })));
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 7940a211557..40791c74dff 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.13
- * (c) 2014-2017 Evan You
+ * Vue.js v2.5.14
+ * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";function t(t){return void 0===t||null===t}function e(t){return void 0!==t&&null!==t}function n(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}function o(t){return"[object Object]"===Ve.call(t)}function a(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function s(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function c(t){var e=parseFloat(t);return isNaN(e)?t:e}function u(t,e){for(var n=Object.create(null),r=t.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}function l(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}function f(t,e){return He.call(t,e)}function 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0,m&&_.insertBefore(t,s.elm,f.elm)):b(v,r,t,f.elm,!1,n,u)),v=n[++u]);l<c?y(t,L(n[d+1])?null:n[d+1].elm,n,u,d,r):d<u&&A(0,e,c,l)}(o,s,c,n,r):N(c)?(N(t.text)&&_.setTextContent(o,""),y(o,null,c,0,c.length-1,n)):N(s)?A(0,s,0,s.length-1):N(t.text)&&_.setTextContent(o,""):t.text!==e.text&&_.setTextContent(o,e.text),N(a)&&N(i=a.hook)&&N(i=i.postpatch)&&i(t,e)}}}function k(t,e,n){if(E(n)&&N(t.parent))t.parent.data.pendingInsert=e;else for(var r=0;r<e.length;++r)e[r].data.hook.insert(e[r])}var O=s("attrs,class,staticClass,staticStyle,key");function S(t,e,n,r){var o,i=e.tag,a=e.data,s=e.children;if(r=r||a&&a.pre,e.elm=t,E(e.isComment)&&N(e.asyncFactory))return e.isAsyncPlaceholder=!0;if(N(a)&&(N(o=a.hook)&&N(o=o.init)&&o(e,!0),N(o=e.componentInstance)))return d(e,n),!0;if(N(i)){if(N(s))if(t.hasChildNodes())if(N(o=a)&&N(o=o.domProps)&&N(o=o.innerHTML)){if(o!==t.innerHTML)return!1}else{for(var c=!0,u=t.firstChild,l=0;l<s.length;l++){if(!u||!S(u,s[l],n,r)){c=!1;break}u=u.nextSibling}if(!c||u)return!1}else v(e,s,n);if(N(a)){var f=!1;for(var p in a)if(!O(p)){f=!0,h(e,n);break}!f&&a.class&&Jt(a.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,e,n,r,o,i){if(!L(e)){var a,s=!1,c=[];if(L(t))s=!0,b(e,c,o,i);else{var u=N(t.nodeType);if(!u&&Xn(t,e))x(t,e,c,r);else{if(u){if(1===t.nodeType&&t.hasAttribute(I)&&(t.removeAttribute(I),n=!0),E(n)&&S(t,e,c))return k(e,c,!0),t;a=t,t=new ct(_.tagName(a).toLowerCase(),{},[],void 0,a)}var l=t.elm,f=_.parentNode(l);if(b(e,c,l._leaveCb?null:f,_.nextSibling(l)),N(e.parent))for(var p=e.parent,d=C(e);p;){for(var v=0;v<g.destroy.length;++v)g.destroy[v](p);if(p.elm=e.elm,d){for(var h=0;h<g.create.length;++h)g.create[h](qn,p);var m=p.data.hook.insert;if(m.merged)for(var y=1;y<m.fns.length;y++)m.fns[y]()}else Wn(p);p=p.parent}N(f)?A(0,[t],0,0):N(t.tag)&&w(t)}}return k(e,c,s),e.elm}N(t)&&w(t)}}({nodeOps:Hn,modules:[ir,cr,vr,mr,Or,U?{create:Qr,activate:Qr,remove:function(t,e){!0!==t.data.show?Gr(t,e):e()}}:{}].concat(er)});W&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&so(t,"input")});var to={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ee(n,"postpatch",function(){to.componentUpdated(t,e,n)}):eo(t,e,n.context),t._vOptions=[].map.call(t.options,oo)):("textarea"===n.tag||Bn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",io),t.addEventListener("compositionend",ao),t.addEventListener("change",ao),W&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){eo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,oo);if(o.some(function(t,e){return!A(t,r[e])}))(t.multiple?e.value.some(function(t){return ro(t,o)}):e.value!==e.oldValue&&ro(e.value,o))&&so(t,"change")}}};function eo(t,e,n){no(t,e,n),(z||q)&&setTimeout(function(){no(t,e,n)},0)}function no(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=-1<$(r,oo(a)),a.selected!==i&&(a.selected=i);else if(A(oo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function ro(e,t){return t.every(function(t){return!A(t,e)})}function oo(t){return"_value"in t?t._value:t.value}function io(t){t.target.composing=!0}function ao(t){t.target.composing&&(t.target.composing=!1,so(t.target,"input"))}function so(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function co(t){return!t.componentInstance||t.data&&t.data.transition?t:co(t.componentInstance._vnode)}var uo={model:to,show:{bind:function(t,e,n){var r=e.value,o=(n=co(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Xr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=co(n)).data&&n.data.transition?(n.data.show=!0,r?Xr(n,function(){t.style.display=t.__vOriginalDisplay}):Gr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},lo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function fo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?fo(se(e.children)):t}function po(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[p(i)]=o[i];return e}function vo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var ho={name:"transition",props:lo,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||ae(t)})).length){var r=this.mode,o=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return o;var i=fo(o);if(!i)return o;if(this._leaving)return vo(t,o);var a="__transition-"+this._uid+"-";i.key=null==i.key?i.isComment?a+"comment":a+i.tag:j(i.key)?0===String(i.key).indexOf(a)?i.key:a+i.key:i.key;var s,c,u=(i.data||(i.data={})).transition=po(this),l=this._vnode,f=fo(l);if(i.data.directives&&i.data.directives.some(function(t){return"show"===t.name})&&(i.data.show=!0),f&&f.data&&(s=i,(c=f).key!==s.key||c.tag!==s.tag)&&!ae(f)&&(!f.componentInstance||!f.componentInstance._vnode.isComment)){var p=f.data.transition=m({},u);if("out-in"===r)return this._leaving=!0,ee(p,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),vo(t,o);if("in-out"===r){if(ae(i))return l;var d,v=function(){d()};ee(u,"afterEnter",v),ee(u,"enterCancelled",v),ee(p,"delayLeave",function(t){d=t})}}return o}}},mo=m({tag:String,moveClass:String},lo);function yo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function go(t){t.data.newPos=t.elm.getBoundingClientRect()}function _o(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete mo.mode;var bo={Transition:ho,TransitionGroup:{props:mo,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=po(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),((n[c.key]=c).data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,r=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,r)&&(t.forEach(yo),t.forEach(go),t.forEach(_o),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,e=n.style;Vr(n,r),e.transform=e.WebkitTransform=e.transitionDuration="",n.addEventListener(Nr,n._moveCb=function t(e){e&&!/transform$/.test(e.propertyName)||(n.removeEventListener(Nr,t),n._moveCb=null,Br(n,r))})}}))},methods:{hasMove:function(t,e){if(!Tr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Er(n,t)}),Sr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Wr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return vn.config.mustUseProp=function(t,e,n){return"value"===n&&kn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},vn.config.isReservedTag=Un,vn.config.isReservedAttr=xn,vn.config.getTagNamespace=function(t){return Rn(t)?"svg":"math"===t?"math":void 0},vn.config.isUnknownElement=function(t){if(!U)return!0;if(Un(t))return!1;if(t=t.toLowerCase(),null!=Vn[t])return Vn[t];var e=document.createElement(t);return-1<t.indexOf("-")?Vn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Vn[t]=/HTMLUnknownElement/.test(e.toString())},m(vn.options.directives,uo),m(vn.options.components,bo),vn.prototype.__patch__=U?Yr:b,vn.prototype.$mount=function(t,e){return t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,r=t,o=e,(n=this).$el=r,n.$options.render||(n.$options.render=lt),ye(n,"beforeMount"),new ke(n,function(){n._update(n._render(),o)},b,null,!0),o=!1,null==n.$vnode&&(n._isMounted=!0,ye(n,"mounted")),n;var n,r,o},U&&setTimeout(function(){O.devtools&&Q&&Q.emit("init",vn)},0),vn});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 56d94725856..ea8cfc2eabd 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -178,9 +178,35 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
 
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
 
 /**
  * Convert an Array-like object to a real Array.
@@ -487,45 +513,6 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
 
 /*  */
 
@@ -594,7 +581,6 @@ function def (obj, key, val, enumerable) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -633,7 +619,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -791,7 +777,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -927,6 +913,16 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
+var targetStack = [];
+
+function pushTarget (_target) {
+  if (Dep.target) { targetStack.push(Dep.target); }
+  Dep.target = _target;
+}
+
+function popTarget () {
+  Dep.target = targetStack.pop();
+}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -934,7 +930,9 @@ Dep.target = null;
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -942,7 +940,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -973,20 +976,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -1012,7 +1015,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -1062,7 +1065,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -1095,6 +1098,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1141,6 +1147,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if ("development" !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1616,12 +1628,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1629,10 +1647,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   {
     assertProp(prop, key, value, vm, absent);
@@ -1761,17 +1779,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1831,7 +1852,7 @@ function flushCallbacks () {
   }
 }
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1851,7 +1872,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   
@@ -1862,7 +1883,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 
 /*  */
@@ -1884,7 +1905,7 @@ function genClassForVnode (vnode) {
       data = mergeClassData(data, parentNode.data);
     }
   }
-  return renderClass$1(data.staticClass, data.class)
+  return renderClass(data.staticClass, data.class)
 }
 
 function mergeClassData (child, parent) {
@@ -1896,7 +1917,7 @@ function mergeClassData (child, parent) {
   }
 }
 
-function renderClass$1 (
+function renderClass (
   staticClass,
   dynamicClass
 ) {
@@ -2004,7 +2025,7 @@ var isTextInputType = makeMap('text,number,password,search,email,tel,url');
 
 /*  */
 
-function renderClass (node) {
+function renderClass$1 (node) {
   var classList = genClassForVnode(node);
   if (classList !== '') {
     return (" class=\"" + (escape(classList)) + "\"")
@@ -2109,9 +2130,9 @@ function renderStyle (vnode) {
 var modules = [
   renderAttrs,
   renderDOMProps,
-  renderClass,
+  renderClass$1,
   renderStyle
-];
+]
 
 /*  */
 
@@ -2168,7 +2189,7 @@ function setSelected (option) {
 var directives = {
   show: show,
   model: model
-};
+}
 
 /*  */
 
@@ -2426,7 +2447,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -2577,7 +2598,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -2678,7 +2701,7 @@ var klass = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-};
+}
 
 /*  */
 
@@ -2722,7 +2745,7 @@ var style = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-};
+}
 
 var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
 
@@ -3100,7 +3123,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -3230,7 +3254,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -3405,8 +3429,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -3460,6 +3484,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -3878,6 +3905,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -4200,8 +4229,19 @@ function checkForAliasModel (el, value) {
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      var typeBinding = getBindingAttr(el, 'type');
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
       var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
@@ -4254,13 +4294,13 @@ function cloneASTElement (el) {
 
 var model$1 = {
   preTransformNode: preTransformNode
-};
+}
 
 var modules$1 = [
   klass,
   style,
   model$1
-];
+]
 
 /*  */
 
@@ -4346,8 +4386,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
   );
@@ -4390,9 +4430,11 @@ function genDefaultModel (
   var type = el.attrsMap.type;
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value$1) {
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$2(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
@@ -4452,7 +4494,7 @@ var directives$1 = {
   model: model$2,
   text: text,
   html: html
-};
+}
 
 /*  */
 
@@ -4471,10 +4513,10 @@ var baseOptions = {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -4487,6 +4529,19 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -4569,9 +4624,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
@@ -4587,12 +4642,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -4619,7 +4677,7 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
@@ -4637,7 +4695,7 @@ var CodegenState = function CodegenState (options) {
 
 
 
-function generate$1 (
+function generate (
   ast,
   options
 ) {
@@ -4895,7 +4953,7 @@ function genInlineTemplate (el, state) {
     state.warn('Inline-template components must have exactly one child element.');
   }
   if (ast.type === 1) {
-    var inlineRenderFns = generate$1(ast, state.options);
+    var inlineRenderFns = generate(ast, state.options);
     return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
   }
 }
@@ -5324,7 +5382,7 @@ var RAW = 0;
 var INTERPOLATION = 1;
 var EXPRESSION = 2;
 
-function generate (
+function generate$1 (
   ast,
   options
 ) {
@@ -5804,7 +5862,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 ) {
   var ast = parse(template.trim(), options);
   optimize(ast, options);
-  var code = generate(ast, options);
+  var code = generate$1(ast, options);
   return {
     ast: ast,
     render: code.render,
@@ -5906,22 +5964,29 @@ function normalizeArrayChildren (children, nestedIndex) {
 
 /*  */
 
+var ssrHelpers = {
+  _ssrEscape: escape,
+  _ssrNode: renderStringNode,
+  _ssrList: renderStringList,
+  _ssrAttr: renderAttr,
+  _ssrAttrs: renderAttrs$1,
+  _ssrDOMProps: renderDOMProps$1,
+  _ssrClass: renderSSRClass,
+  _ssrStyle: renderSSRStyle
+};
+
 function installSSRHelpers (vm) {
-  if (vm._ssrNode) { return }
-  var Ctor = vm.constructor;
-  while (Ctor.super) {
-    Ctor = Ctor.super;
-  }
-  extend(Ctor.prototype, {
-    _ssrEscape: escape,
-    _ssrNode: renderStringNode$1,
-    _ssrList: renderStringList,
-    _ssrAttr: renderAttr,
-    _ssrAttrs: renderAttrs$1,
-    _ssrDOMProps: renderDOMProps$1,
-    _ssrClass: renderSSRClass,
-    _ssrStyle: renderSSRStyle
-  });
+  if (vm._ssrNode) {
+    return
+  }
+  var Vue = vm.constructor;
+  while (Vue.super) {
+    Vue = Vue.super;
+  }
+  extend(Vue.prototype, ssrHelpers);
+  if (Vue.FunctionalRenderContext) {
+    extend(Vue.FunctionalRenderContext.prototype, ssrHelpers);
+  }
 }
 
 var StringNode = function StringNode (
@@ -5944,7 +6009,7 @@ var StringNode = function StringNode (
   }
 };
 
-function renderStringNode$1 (
+function renderStringNode (
   open,
   close,
   children,
@@ -6000,7 +6065,7 @@ function renderSSRClass (
   staticClass,
   dynamic
 ) {
-  var res = renderClass$1(staticClass, dynamic);
+  var res = renderClass(staticClass, dynamic);
   return res === '' ? res : (" class=\"" + (escape(res)) + "\"")
 }
 
@@ -6028,8 +6093,7 @@ function renderSSRStyle (
   );
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -6058,6 +6122,33 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
 
 {
   var perf = inBrowser && window.performance;
@@ -6484,29 +6575,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -6560,6 +6652,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -6573,6 +6667,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -6702,8 +6797,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -6720,13 +6818,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 /**
@@ -6821,6 +6932,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -6829,16 +6948,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -6910,11 +7028,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -7026,7 +7142,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -7146,7 +7262,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -7189,14 +7305,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -7234,7 +7359,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -7242,10 +7375,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -7492,7 +7621,7 @@ var normalizeRender = function (vm) {
 
 function renderNode (node, isRoot, context) {
   if (node.isString) {
-    renderStringNode(node, context);
+    renderStringNode$1(node, context);
   } else if (isDef(node.componentOptions)) {
     renderComponent(node, isRoot, context);
   } else if (isDef(node.tag)) {
@@ -7670,7 +7799,7 @@ function renderAsyncComponent (node, isRoot, context) {
   }
 }
 
-function renderStringNode (el, context) {
+function renderStringNode$1 (el, context) {
   var write = context.write;
   var next = context.next;
   if (isUndef(el.children) || el.children.length === 0) {
@@ -7869,7 +7998,7 @@ var entryServerBasicRenderer = createBasicRenderer({
   directives: directives,
   isUnaryTag: isUnaryTag,
   canBeLeftOpenTag: canBeLeftOpenTag
-});
+})
 
 return entryServerBasicRenderer;
 
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 2b1afdc9801..9b6727dd4b1 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -180,9 +180,35 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
 
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
 
 /**
  * Convert an Array-like object to a real Array.
@@ -489,45 +515,6 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
 
 /*  */
 
@@ -596,7 +583,6 @@ function def (obj, key, val, enumerable) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -635,7 +621,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -793,7 +779,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -929,6 +915,16 @@ Dep.prototype.notify = function notify () {
 // this is globally unique because there could be only one
 // watcher being evaluated at any time.
 Dep.target = null;
+var targetStack = [];
+
+function pushTarget (_target) {
+  if (Dep.target) { targetStack.push(Dep.target); }
+  Dep.target = _target;
+}
+
+function popTarget () {
+  Dep.target = targetStack.pop();
+}
 
 /*
  * not type checking this file because flow doesn't play well with
@@ -936,7 +932,9 @@ Dep.target = null;
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -944,7 +942,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -975,20 +978,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -1014,7 +1017,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -1064,7 +1067,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -1097,6 +1100,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1143,6 +1149,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1618,12 +1630,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1631,10 +1649,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   if (
     process.env.NODE_ENV !== 'production' &&
@@ -1767,17 +1785,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1837,7 +1858,7 @@ function flushCallbacks () {
   }
 }
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1857,7 +1878,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   
@@ -1868,7 +1889,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 
 /*  */
@@ -1890,7 +1911,7 @@ function genClassForVnode (vnode) {
       data = mergeClassData(data, parentNode.data);
     }
   }
-  return renderClass$1(data.staticClass, data.class)
+  return renderClass(data.staticClass, data.class)
 }
 
 function mergeClassData (child, parent) {
@@ -1902,7 +1923,7 @@ function mergeClassData (child, parent) {
   }
 }
 
-function renderClass$1 (
+function renderClass (
   staticClass,
   dynamicClass
 ) {
@@ -2010,7 +2031,7 @@ var isTextInputType = makeMap('text,number,password,search,email,tel,url');
 
 /*  */
 
-function renderClass (node) {
+function renderClass$1 (node) {
   var classList = genClassForVnode(node);
   if (classList !== '') {
     return (" class=\"" + (escape(classList)) + "\"")
@@ -2115,9 +2136,9 @@ function renderStyle (vnode) {
 var modules = [
   renderAttrs,
   renderDOMProps,
-  renderClass,
+  renderClass$1,
   renderStyle
-];
+]
 
 /*  */
 
@@ -2174,7 +2195,7 @@ function setSelected (option) {
 var baseDirectives = {
   show: show,
   model: model
-};
+}
 
 /*  */
 
@@ -2524,7 +2545,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -2675,7 +2696,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -2776,7 +2799,7 @@ var klass = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-};
+}
 
 /*  */
 
@@ -2820,7 +2843,7 @@ var style = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-};
+}
 
 /**
  * Not type-checking this file because it's mostly vendor code.
@@ -2843,7 +2866,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -2973,7 +2997,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -3148,8 +3172,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -3203,6 +3227,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -3621,6 +3648,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -3943,8 +3972,19 @@ function checkForAliasModel (el, value) {
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      var typeBinding = getBindingAttr(el, 'type');
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
       var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
@@ -3997,13 +4037,13 @@ function cloneASTElement (el) {
 
 var model$1 = {
   preTransformNode: preTransformNode
-};
+}
 
 var modules$1 = [
   klass,
   style,
   model$1
-];
+]
 
 /*  */
 
@@ -4089,8 +4129,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
   );
@@ -4133,9 +4173,11 @@ function genDefaultModel (
   var type = el.attrsMap.type;
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   if (process.env.NODE_ENV !== 'production') {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value$1) {
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$2(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
@@ -4195,7 +4237,7 @@ var directives = {
   model: model$2,
   text: text,
   html: html
-};
+}
 
 /*  */
 
@@ -4214,10 +4256,10 @@ var baseOptions = {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -4230,6 +4272,19 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -4312,9 +4367,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
@@ -4330,12 +4385,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -4362,7 +4420,7 @@ var baseDirectives$1 = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
@@ -4380,7 +4438,7 @@ var CodegenState = function CodegenState (options) {
 
 
 
-function generate$1 (
+function generate (
   ast,
   options
 ) {
@@ -4638,7 +4696,7 @@ function genInlineTemplate (el, state) {
     state.warn('Inline-template components must have exactly one child element.');
   }
   if (ast.type === 1) {
-    var inlineRenderFns = generate$1(ast, state.options);
+    var inlineRenderFns = generate(ast, state.options);
     return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
   }
 }
@@ -5067,7 +5125,7 @@ var RAW = 0;
 var INTERPOLATION = 1;
 var EXPRESSION = 2;
 
-function generate (
+function generate$1 (
   ast,
   options
 ) {
@@ -5547,7 +5605,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 ) {
   var ast = parse(template.trim(), options);
   optimize(ast, options);
-  var code = generate(ast, options);
+  var code = generate$1(ast, options);
   return {
     ast: ast,
     render: code.render,
@@ -5649,22 +5707,29 @@ function normalizeArrayChildren (children, nestedIndex) {
 
 /*  */
 
+var ssrHelpers = {
+  _ssrEscape: escape,
+  _ssrNode: renderStringNode,
+  _ssrList: renderStringList,
+  _ssrAttr: renderAttr,
+  _ssrAttrs: renderAttrs$1,
+  _ssrDOMProps: renderDOMProps$1,
+  _ssrClass: renderSSRClass,
+  _ssrStyle: renderSSRStyle
+};
+
 function installSSRHelpers (vm) {
-  if (vm._ssrNode) { return }
-  var Ctor = vm.constructor;
-  while (Ctor.super) {
-    Ctor = Ctor.super;
-  }
-  extend(Ctor.prototype, {
-    _ssrEscape: escape,
-    _ssrNode: renderStringNode$1,
-    _ssrList: renderStringList,
-    _ssrAttr: renderAttr,
-    _ssrAttrs: renderAttrs$1,
-    _ssrDOMProps: renderDOMProps$1,
-    _ssrClass: renderSSRClass,
-    _ssrStyle: renderSSRStyle
-  });
+  if (vm._ssrNode) {
+    return
+  }
+  var Vue = vm.constructor;
+  while (Vue.super) {
+    Vue = Vue.super;
+  }
+  extend(Vue.prototype, ssrHelpers);
+  if (Vue.FunctionalRenderContext) {
+    extend(Vue.FunctionalRenderContext.prototype, ssrHelpers);
+  }
 }
 
 var StringNode = function StringNode (
@@ -5687,7 +5752,7 @@ var StringNode = function StringNode (
   }
 };
 
-function renderStringNode$1 (
+function renderStringNode (
   open,
   close,
   children,
@@ -5743,7 +5808,7 @@ function renderSSRClass (
   staticClass,
   dynamic
 ) {
-  var res = renderClass$1(staticClass, dynamic);
+  var res = renderClass(staticClass, dynamic);
   return res === '' ? res : (" class=\"" + (escape(res)) + "\"")
 }
 
@@ -5771,8 +5836,7 @@ if (process.env.NODE_ENV !== 'production') {
   );
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -5801,6 +5865,33 @@ var seenObjects = new _Set();
  * getters, so that every nested property inside the object
  * is collected as a "deep" dependency.
  */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
 
 if (process.env.NODE_ENV !== 'production') {
   var perf = inBrowser && window.performance;
@@ -6229,29 +6320,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -6305,6 +6397,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -6318,6 +6412,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -6447,8 +6542,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -6465,13 +6563,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 /**
@@ -6566,6 +6677,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -6574,16 +6693,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -6655,11 +6773,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -6771,7 +6887,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -6891,7 +7007,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -6934,14 +7050,23 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    setFunctionalContextForVNode(vnode, data, contextVm, options);
+    return vnode
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    for (var i = 0; i < vnodes.length; i++) {
+      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
     }
+    return vnodes
   }
+}
 
-  return vnode
+function setFunctionalContextForVNode (vnode, data, vm, options) {
+  vnode.fnContext = vm;
+  vnode.fnOptions = options;
+  if (data.slot) {
+    (vnode.data || (vnode.data = {})).slot = data.slot;
+  }
 }
 
 function mergeProps (to, from) {
@@ -6979,7 +7104,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -6987,10 +7120,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -7237,7 +7366,7 @@ var normalizeRender = function (vm) {
 
 function renderNode (node, isRoot, context) {
   if (node.isString) {
-    renderStringNode(node, context);
+    renderStringNode$1(node, context);
   } else if (isDef(node.componentOptions)) {
     renderComponent(node, isRoot, context);
   } else if (isDef(node.tag)) {
@@ -7415,7 +7544,7 @@ function renderAsyncComponent (node, isRoot, context) {
   }
 }
 
-function renderStringNode (el, context) {
+function renderStringNode$1 (el, context) {
   var write = context.write;
   var next = context.next;
   if (isUndef(el.children) || el.children.length === 0) {
@@ -7998,7 +8127,7 @@ function getPreloadType (ext) {
 
 /*  */
 
-function createRenderer$1 (ref) {
+function createRenderer (ref) {
   if ( ref === void 0 ) ref = {};
   var modules = ref.modules; if ( modules === void 0 ) modules = [];
   var directives = ref.directives; if ( directives === void 0 ) directives = {};
@@ -8025,6 +8154,8 @@ function createRenderer$1 (ref) {
       context,
       cb
     ) {
+      var assign;
+
       if (typeof context === 'function') {
         cb = context;
         context = {};
@@ -8036,7 +8167,6 @@ function createRenderer$1 (ref) {
       // no callback, return Promise
       var promise;
       if (!cb) {
-        var assign;
         ((assign = createPromiseCallback(), promise = assign.promise, cb = assign.cb));
       }
 
@@ -8088,7 +8218,7 @@ function createRenderer$1 (ref) {
 }
 
 var vm = require('vm');
-var path$2 = require('path');
+var path$1 = require('path');
 var resolve = require('resolve');
 var NativeModule = require('module');
 
@@ -8140,7 +8270,7 @@ function compileModule (files, basedir, runInNewContext) {
       : script.runInNewContext(sandbox);
     var m = { exports: {}};
     var r = function (file) {
-      file = path$2.posix.join('.', file);
+      file = path$1.posix.join('.', file);
       if (files[file]) {
         return evaluateModule(file, sandbox, evaluatedFiles)
       } else if (basedir) {
@@ -8293,7 +8423,7 @@ function rewriteTraceLine (trace, mapConsumers) {
 /*  */
 
 var fs = require('fs');
-var path$1 = require('path');
+var path$2 = require('path');
 var PassThrough = require('stream').PassThrough;
 
 var INVALID_MSG =
@@ -8321,11 +8451,11 @@ function createBundleRendererCreator (
     if (
       typeof bundle === 'string' &&
       /\.js(on)?$/.test(bundle) &&
-      path$1.isAbsolute(bundle)
+      path$2.isAbsolute(bundle)
     ) {
       if (fs.existsSync(bundle)) {
         var isJSON = /\.json$/.test(bundle);
-        basedir = basedir || path$1.dirname(bundle);
+        basedir = basedir || path$2.dirname(bundle);
         bundle = fs.readFileSync(bundle, 'utf-8');
         if (isJSON) {
           try {
@@ -8366,6 +8496,8 @@ function createBundleRendererCreator (
 
     return {
       renderToString: function (context, cb) {
+        var assign;
+
         if (typeof context === 'function') {
           cb = context;
           context = {};
@@ -8373,7 +8505,6 @@ function createBundleRendererCreator (
 
         var promise;
         if (!cb) {
-          var assign;
           ((assign = createPromiseCallback(), promise = assign.promise, cb = assign.cb));
         }
 
@@ -8434,10 +8565,10 @@ function createBundleRendererCreator (
 
 process.env.VUE_ENV = 'server';
 
-function createRenderer$$1 (options) {
+function createRenderer$1 (options) {
   if ( options === void 0 ) options = {};
 
-  return createRenderer$1(extend(extend({}, options), {
+  return createRenderer(extend(extend({}, options), {
     isUnaryTag: isUnaryTag,
     canBeLeftOpenTag: canBeLeftOpenTag,
     modules: modules,
@@ -8447,7 +8578,7 @@ function createRenderer$$1 (options) {
   }))
 }
 
-var createBundleRenderer = createBundleRendererCreator(createRenderer$$1);
+var createBundleRenderer = createBundleRendererCreator(createRenderer$1);
 
-exports.createRenderer = createRenderer$$1;
+exports.createRenderer = createRenderer$1;
 exports.createBundleRenderer = createBundleRenderer;
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index d92e9d0d9f1..45e729600a5 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.13",
+  "version": "2.5.14",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 9c7d2679c0a..5797e6d1bc2 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -4,7 +4,7 @@
 	(factory((global.VueTemplateCompiler = {})));
 }(this, (function (exports) { 'use strict';
 
-var splitRE$1 = /\r?\n/g;
+var splitRE = /\r?\n/g;
 var emptyRE = /^\s*$/;
 var needFixRE = /^(\r?\n)*[\t\s]/;
 
@@ -12,7 +12,7 @@ var deIndent = function deindent (str) {
   if (!needFixRE.test(str)) {
     return str
   }
-  var lines = str.split(splitRE$1);
+  var lines = str.split(splitRE);
   var min = Infinity;
   var type, cur, c;
   for (var i = 0; i < lines.length; i++) {
@@ -191,9 +191,35 @@ var camelize = cached(function (str) {
 
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
 
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
 
 /**
  * Convert an Array-like object to a real Array.
@@ -297,7 +323,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -427,7 +454,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -585,7 +612,7 @@ function parseHTML (html, options) {
 
 /*  */
 
-var splitRE = /\r?\n/g;
+var splitRE$1 = /\r?\n/g;
 var replaceRE = /./g;
 var isSpecialTag = makeMap('script,style,template', true);
 
@@ -682,7 +709,7 @@ function parseComponent (
     if (pad === 'space') {
       return content.slice(0, block.start).replace(replaceRE, ' ')
     } else {
-      var offset = content.slice(0, block.start).split(splitRE).length;
+      var offset = content.slice(0, block.start).split(splitRE$1).length;
       var padChar = block.type === 'script' && !block.lang
         ? '//\n'
         : '\n';
@@ -719,7 +746,6 @@ function def (obj, key, val, enumerable) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -758,7 +784,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -898,7 +924,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -1097,7 +1123,9 @@ Object.defineProperties( VNode.prototype, prototypeAccessors );
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -1105,7 +1133,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1136,20 +1169,18 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -1175,7 +1206,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -1225,7 +1256,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -1258,6 +1289,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1304,6 +1338,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if ("development" !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1614,7 +1654,7 @@ function flushCallbacks () {
   }
 }
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1634,7 +1674,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   
@@ -1645,7 +1685,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 
 /*  */
@@ -1828,7 +1868,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -1979,7 +2019,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -2080,7 +2122,7 @@ var klass = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-};
+}
 
 /*  */
 
@@ -2147,7 +2189,7 @@ var style = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-};
+}
 
 var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
 
@@ -2523,8 +2565,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -2578,6 +2620,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -2996,6 +3041,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -3318,8 +3365,19 @@ function checkForAliasModel (el, value) {
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      var typeBinding = getBindingAttr(el, 'type');
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
       var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
@@ -3372,13 +3430,13 @@ function cloneASTElement (el) {
 
 var model = {
   preTransformNode: preTransformNode
-};
+}
 
 var modules = [
   klass,
   style,
   model
-];
+]
 
 /*  */
 
@@ -3464,8 +3522,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
   );
@@ -3508,9 +3566,11 @@ function genDefaultModel (
   var type = el.attrsMap.type;
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value$1) {
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$2(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
@@ -3570,7 +3630,7 @@ var directives = {
   model: model$1,
   text: text,
   html: html
-};
+}
 
 /*  */
 
@@ -3716,10 +3776,10 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -3732,6 +3792,19 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -3814,9 +3887,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
@@ -3832,12 +3905,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -3864,7 +3940,7 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 29602de7eb7..0b8371d3103 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -148,9 +148,35 @@ var camelize = cached(function (str) {
 
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
 
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
 
 /**
  * Convert an Array-like object to a real Array.
@@ -254,7 +280,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -384,7 +411,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -676,7 +703,6 @@ function def (obj, key, val, enumerable) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -715,7 +741,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -855,7 +881,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -1054,7 +1080,9 @@ Object.defineProperties( VNode.prototype, prototypeAccessors );
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -1062,7 +1090,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -1093,20 +1126,18 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -1132,7 +1163,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -1182,7 +1213,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -1215,6 +1246,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1261,6 +1295,12 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    !Array.isArray(target) &&
+    !isObject(target)
+  ) {
+    warn(("Cannot set reactive property on non-object/array value: " + target));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1571,7 +1611,7 @@ function flushCallbacks () {
   }
 }
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1591,7 +1631,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   
@@ -1602,7 +1642,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 
 /*  */
@@ -1785,7 +1825,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -1936,7 +1976,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -2037,7 +2079,7 @@ var klass = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-};
+}
 
 /*  */
 
@@ -2104,7 +2146,7 @@ var style = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-};
+}
 
 /*  */
 
@@ -2125,8 +2167,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -2180,6 +2222,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -2598,6 +2643,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -2920,8 +2967,19 @@ function checkForAliasModel (el, value) {
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      var typeBinding = getBindingAttr(el, 'type');
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
       var ifCondition = getAndRemoveAttr(el, 'v-if', true);
       var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
       var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
@@ -2974,13 +3032,13 @@ function cloneASTElement (el) {
 
 var model = {
   preTransformNode: preTransformNode
-};
+}
 
 var modules = [
   klass,
   style,
   model
-];
+]
 
 /*  */
 
@@ -3066,8 +3124,8 @@ function genCheckboxModel (
     'if(Array.isArray($$a)){' +
       "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
           '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + value + "=$$a.concat([$$v]))}" +
-      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
     "}else{" + (genAssignmentCode(value, '$$c')) + "}",
     null, true
   );
@@ -3110,9 +3168,11 @@ function genDefaultModel (
   var type = el.attrsMap.type;
 
   // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
   if (process.env.NODE_ENV !== 'production') {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value$1) {
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$2(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
@@ -3172,7 +3232,7 @@ var directives = {
   model: model$1,
   text: text,
   html: html
-};
+}
 
 /*  */
 
@@ -3318,10 +3378,10 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -3334,6 +3394,19 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  up: 'ArrowUp',
+  left: 'ArrowLeft',
+  right: 'ArrowRight',
+  down: 'ArrowDown',
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -3416,9 +3489,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
@@ -3434,12 +3507,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -3466,7 +3542,7 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 51fbc9c276c..4d8b7eb126d 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.13",
+  "version": "2.5.14",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",
diff --git a/scripts/verify-commit-msg.js b/scripts/verify-commit-msg.js
index 6a2749de933..2a72e49c4bd 100644
--- a/scripts/verify-commit-msg.js
+++ b/scripts/verify-commit-msg.js
@@ -2,7 +2,7 @@ const chalk = require('chalk')
 const msgPath = process.env.GIT_PARAMS
 const msg = require('fs').readFileSync(msgPath, 'utf-8').trim()
 
-const commitRE = /^(revert: )?(feat|fix|polish|docs|style|refactor|perf|test|workflow|ci|chore|types)(\(.+\))?: .{1,50}/
+const commitRE = /^(revert: )?(feat|fix|polish|docs|style|refactor|perf|test|workflow|ci|chore|types|build)(\(.+\))?: .{1,50}/
 
 if (!commitRE.test(msg)) {
   console.log()

From 387d2567ebec83db47d2049eec006a1ffc83451a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Mar 2018 16:41:47 -0500
Subject: [PATCH 431/911] build: release 2.5.14

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index a55045d118e..7ee67727e44 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.13",
+  "version": "2.5.14",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 84a9a9d61057f6f40a9ad2bee456b39ef0a8f001 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 10 Mar 2018 13:39:29 -0500
Subject: [PATCH 432/911] fix: do not traverse VNodes when regsitering
 dependencies

fix #7786
---
 src/core/observer/traverse.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/observer/traverse.js b/src/core/observer/traverse.js
index 37c71e9cf98..6b26524affc 100644
--- a/src/core/observer/traverse.js
+++ b/src/core/observer/traverse.js
@@ -2,6 +2,7 @@
 
 import { _Set as Set, isObject } from '../util/index'
 import type { SimpleSet } from '../util/index'
+import VNode from '../vdom/vnode'
 
 const seenObjects = new Set()
 
@@ -18,7 +19,7 @@ export function traverse (val: any) {
 function _traverse (val: any, seen: SimpleSet) {
   let i, keys
   const isA = Array.isArray(val)
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {

From bafc73f42705e277c1ae9390475fb455e5974fd6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 10 Mar 2018 18:36:38 -0500
Subject: [PATCH 433/911] build: build 2.5.15

---
 dist/vue.common.js                          | 6 +++---
 dist/vue.esm.js                             | 6 +++---
 dist/vue.js                                 | 6 +++---
 dist/vue.min.js                             | 4 ++--
 dist/vue.runtime.common.js                  | 6 +++---
 dist/vue.runtime.esm.js                     | 6 +++---
 dist/vue.runtime.js                         | 6 +++---
 dist/vue.runtime.min.js                     | 4 ++--
 packages/vue-server-renderer/basic.js       | 2 +-
 packages/vue-server-renderer/build.js       | 2 +-
 packages/vue-server-renderer/package.json   | 2 +-
 packages/vue-template-compiler/package.json | 2 +-
 12 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 1b96113eafd..112c0f38872 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1979,7 +1979,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
@@ -5084,7 +5084,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.14';
+Vue.version = '2.5.15';
 
 /*  */
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 236cda09b7d..4aa76229f53 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1977,7 +1977,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
@@ -5082,7 +5082,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.14';
+Vue.version = '2.5.15';
 
 /*  */
 
diff --git a/dist/vue.js b/dist/vue.js
index 3322c22619b..b9492bb510a 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1979,7 +1979,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
@@ -5069,7 +5069,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.14';
+Vue.version = '2.5.15';
 
 /*  */
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 1e058e9fa7a..22e37d62e70 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 86a23f5efdf..c05000d2d8a 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1952,7 +1952,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
@@ -5080,7 +5080,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.14';
+Vue.version = '2.5.15';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index ba7915b7f96..17c2b89d2b8 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1950,7 +1950,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
@@ -5078,7 +5078,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.14';
+Vue.version = '2.5.15';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 9f3ab881144..bf26bf09f6a 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1952,7 +1952,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
@@ -5065,7 +5065,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.14';
+Vue.version = '2.5.15';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 40791c74dff..3ea65e4502c 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.14
+ * Vue.js v2.5.15
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
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c=!0,u=t.firstChild,l=0;l<s.length;l++){if(!u||!S(u,s[l],n,r)){c=!1;break}u=u.nextSibling}if(!c||u)return!1}else v(e,s,n);if(N(a)){var f=!1;for(var p in a)if(!O(p)){f=!0,h(e,n);break}!f&&a.class&&Jt(a.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,e,n,r,o,i){if(!L(e)){var a,s=!1,c=[];if(L(t))s=!0,b(e,c,o,i);else{var u=N(t.nodeType);if(!u&&Xn(t,e))x(t,e,c,r);else{if(u){if(1===t.nodeType&&t.hasAttribute(I)&&(t.removeAttribute(I),n=!0),E(n)&&S(t,e,c))return k(e,c,!0),t;a=t,t=new ct(_.tagName(a).toLowerCase(),{},[],void 0,a)}var l=t.elm,f=_.parentNode(l);if(b(e,c,l._leaveCb?null:f,_.nextSibling(l)),N(e.parent))for(var p=e.parent,d=C(e);p;){for(var v=0;v<g.destroy.length;++v)g.destroy[v](p);if(p.elm=e.elm,d){for(var h=0;h<g.create.length;++h)g.create[h](qn,p);var m=p.data.hook.insert;if(m.merged)for(var y=1;y<m.fns.length;y++)m.fns[y]()}else Wn(p);p=p.parent}N(f)?A(0,[t],0,0):N(t.tag)&&w(t)}}return k(e,c,s),e.elm}N(t)&&w(t)}}({nodeOps:Hn,modules:[ir,cr,vr,mr,Or,U?{create:Qr,activate:Qr,remove:function(t,e){!0!==t.data.show?Gr(t,e):e()}}:{}].concat(er)});W&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&so(t,"input")});var to={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ee(n,"postpatch",function(){to.componentUpdated(t,e,n)}):eo(t,e,n.context),t._vOptions=[].map.call(t.options,oo)):("textarea"===n.tag||Bn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",io),t.addEventListener("compositionend",ao),t.addEventListener("change",ao),W&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){eo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,oo);if(o.some(function(t,e){return!A(t,r[e])}))(t.multiple?e.value.some(function(t){return ro(t,o)}):e.value!==e.oldValue&&ro(e.value,o))&&so(t,"change")}}};function eo(t,e,n){no(t,e,n),(z||q)&&setTimeout(function(){no(t,e,n)},0)}function no(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=-1<$(r,oo(a)),a.selected!==i&&(a.selected=i);else if(A(oo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function ro(e,t){return t.every(function(t){return!A(t,e)})}function oo(t){return"_value"in t?t._value:t.value}function io(t){t.target.composing=!0}function ao(t){t.target.composing&&(t.target.composing=!1,so(t.target,"input"))}function so(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function co(t){return!t.componentInstance||t.data&&t.data.transition?t:co(t.componentInstance._vnode)}var uo={model:to,show:{bind:function(t,e,n){var r=e.value,o=(n=co(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Xr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=co(n)).data&&n.data.transition?(n.data.show=!0,r?Xr(n,function(){t.style.display=t.__vOriginalDisplay}):Gr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},lo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function fo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?fo(se(e.children)):t}function po(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[p(i)]=o[i];return e}function vo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var ho={name:"transition",props:lo,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||ae(t)})).length){var r=this.mode,o=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return o;var i=fo(o);if(!i)return o;if(this._leaving)return vo(t,o);var a="__transition-"+this._uid+"-";i.key=null==i.key?i.isComment?a+"comment":a+i.tag:j(i.key)?0===String(i.key).indexOf(a)?i.key:a+i.key:i.key;var s,c,u=(i.data||(i.data={})).transition=po(this),l=this._vnode,f=fo(l);if(i.data.directives&&i.data.directives.some(function(t){return"show"===t.name})&&(i.data.show=!0),f&&f.data&&(s=i,(c=f).key!==s.key||c.tag!==s.tag)&&!ae(f)&&(!f.componentInstance||!f.componentInstance._vnode.isComment)){var p=f.data.transition=m({},u);if("out-in"===r)return this._leaving=!0,ee(p,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),vo(t,o);if("in-out"===r){if(ae(i))return l;var d,v=function(){d()};ee(u,"afterEnter",v),ee(u,"enterCancelled",v),ee(p,"delayLeave",function(t){d=t})}}return o}}},mo=m({tag:String,moveClass:String},lo);function yo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function go(t){t.data.newPos=t.elm.getBoundingClientRect()}function _o(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete mo.mode;var bo={Transition:ho,TransitionGroup:{props:mo,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=po(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),((n[c.key]=c).data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,r=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,r)&&(t.forEach(yo),t.forEach(go),t.forEach(_o),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,e=n.style;Vr(n,r),e.transform=e.WebkitTransform=e.transitionDuration="",n.addEventListener(Nr,n._moveCb=function t(e){e&&!/transform$/.test(e.propertyName)||(n.removeEventListener(Nr,t),n._moveCb=null,Br(n,r))})}}))},methods:{hasMove:function(t,e){if(!Tr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Er(n,t)}),Sr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Wr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return vn.config.mustUseProp=function(t,e,n){return"value"===n&&kn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},vn.config.isReservedTag=Un,vn.config.isReservedAttr=xn,vn.config.getTagNamespace=function(t){return Rn(t)?"svg":"math"===t?"math":void 0},vn.config.isUnknownElement=function(t){if(!U)return!0;if(Un(t))return!1;if(t=t.toLowerCase(),null!=Vn[t])return Vn[t];var e=document.createElement(t);return-1<t.indexOf("-")?Vn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Vn[t]=/HTMLUnknownElement/.test(e.toString())},m(vn.options.directives,uo),m(vn.options.components,bo),vn.prototype.__patch__=U?Yr:b,vn.prototype.$mount=function(t,e){return t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,r=t,o=e,(n=this).$el=r,n.$options.render||(n.$options.render=lt),ye(n,"beforeMount"),new ke(n,function(){n._update(n._render(),o)},b,null,!0),o=!1,null==n.$vnode&&(n._isMounted=!0,ye(n,"mounted")),n;var n,r,o},U&&setTimeout(function(){O.devtools&&Q&&Q.emit("init",vn)},0),vn});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index ea8cfc2eabd..90c93cc8591 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -6130,7 +6130,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 9b6727dd4b1..97b8af6b0eb 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -5873,7 +5873,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 45e729600a5..9fbb90e1662 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.14",
+  "version": "2.5.15",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 4d8b7eb126d..8ea4631b281 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.14",
+  "version": "2.5.15",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From af5453cd5e90461531f1711b5ecb6bd47136e7b0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 10 Mar 2018 18:36:42 -0500
Subject: [PATCH 434/911] build: release 2.5.15

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 7ee67727e44..a78d86ef8e1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.14",
+  "version": "2.5.15",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 71b4b25375fa4bcd929e1161c35cab133e4a7c23 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 11 Mar 2018 11:51:51 -0400
Subject: [PATCH 435/911] fix: allow multiline expression in v-for

fix #7792
---
 src/compiler/parser/index.js              |  2 +-
 test/unit/features/directives/for.spec.js | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index ba1b726870a..a603b36bb55 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -21,7 +21,7 @@ import {
 
 export const onRE = /^@|^v-on:/
 export const dirRE = /^v-|^@|^:/
-export const forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/
+export const forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
 
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index ec270ca9cc2..22528be62fc 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -464,6 +464,26 @@ describe('Directive v-for', () => {
     }).then(done)
   })
 
+  // #7792
+  it('should work with multiline expressions', () => {
+    const vm = new Vue({
+      data: {
+        a: [1],
+        b: [2]
+      },
+      template: `
+        <div>
+          <span v-for="n in (
+            a.concat(
+              b
+            )
+          )">{{ n }}</span>
+        </div>
+      `
+    }).$mount()
+    expect(vm.$el.textContent).toBe('12')
+  })
+
   const supportsDestructuring = (() => {
     try {
       new Function('var { foo } = bar')

From 666cdbd71e15de01e4b4468cb5b52ec882cae159 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Mon, 12 Mar 2018 02:04:31 +0800
Subject: [PATCH 436/911] test(vdom): add test case for #7786 (#7793)

---
 test/unit/modules/vdom/create-element.spec.js | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/test/unit/modules/vdom/create-element.spec.js b/test/unit/modules/vdom/create-element.spec.js
index 16a5e4a8a7c..68773850be7 100644
--- a/test/unit/modules/vdom/create-element.spec.js
+++ b/test/unit/modules/vdom/create-element.spec.js
@@ -253,4 +253,24 @@ describe('create-element', () => {
       expect(vm.$el.querySelector('input').value).toBe('b')
     }).then(done)
   })
+
+  // #7786
+  it('creates element with vnode reference in :class or :style', () => {
+    const vm = new Vue({
+      components: {
+        foo: {
+          render (h) {
+            return h('div', {
+              class: {
+                'has-vnode': this.$vnode
+              }
+            }, 'foo')
+          }
+        }
+      },
+      render: h => h('foo')
+    }).$mount()
+    expect(vm.$el.innerHTML).toContain('foo')
+    expect(vm.$el.classList.contains('has-vnode')).toBe(true)
+  })
 })

From 882e7199fd8eee039291c4b9f7f324dcf46f32fd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 11 Mar 2018 17:09:51 -0400
Subject: [PATCH 437/911] fix(ssr): fix SSR for async functional components

fix #7784
---
 src/server/render-context.js |  7 ++++-
 src/server/render.js         | 22 +++++++++++++--
 test/ssr/ssr-string.spec.js  | 54 ++++++++++++++++++++++++++++++++++++
 3 files changed, 79 insertions(+), 4 deletions(-)

diff --git a/src/server/render-context.js b/src/server/render-context.js
index cecb00157d7..b808f6a838d 100644
--- a/src/server/render-context.js
+++ b/src/server/render-context.js
@@ -67,13 +67,18 @@ export class RenderContext {
     }
     switch (lastState.type) {
       case 'Element':
+      case 'Fragment':
         const { children, total } = lastState
         const rendered = lastState.rendered++
         if (rendered < total) {
           this.renderNode(children[rendered], false, this)
         } else {
           this.renderStates.pop()
-          this.write(lastState.endTag, this.next)
+          if (lastState.endTag) {
+            this.write(lastState.endTag, this.next)
+          } else {
+            this.next()
+          }
         }
         break
       case 'Component':
diff --git a/src/server/render.js b/src/server/render.js
index 150afce077d..c570cc78176 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -191,7 +191,21 @@ function renderAsyncComponent (node, isRoot, context) {
       tag
     )
     if (resolvedNode) {
-      renderComponent(resolvedNode, isRoot, context)
+      if (resolvedNode.componnetInstance) {
+        renderComponent(resolvedNode, isRoot, context)
+      } else if (!Array.isArray(resolvedNode)) {
+        // single return node from functional component
+        renderNode(resolvedNode, isRoot, context)
+      } else {
+        // multiple return nodes from functional component
+        context.renderStates.push({
+          type: 'Fragment',
+          children: resolvedNode,
+          rendered: 0,
+          total: resolvedNode.length
+        })
+        context.next()
+      }
     } else {
       // invalid component, but this does not throw on the client
       // so render empty comment node
@@ -232,9 +246,10 @@ function renderStringNode (el, context) {
     const children: Array<VNode> = el.children
     context.renderStates.push({
       type: 'Element',
+      children,
       rendered: 0,
       total: children.length,
-      endTag: el.close, children
+      endTag: el.close
     })
     write(el.open, next)
   }
@@ -263,9 +278,10 @@ function renderElement (el, isRoot, context) {
     const children: Array<VNode> = el.children
     context.renderStates.push({
       type: 'Element',
+      children,
       rendered: 0,
       total: children.length,
-      endTag, children
+      endTag
     })
     write(startTag, next)
   }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index f370618d8bc..4d3ace46019 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -575,6 +575,60 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('renders async component (functional, single node)', done => {
+    renderVmWithOptions({
+      template: `
+        <div>
+          <test-async></test-async>
+        </div>
+      `,
+      components: {
+        testAsync (resolve) {
+          setTimeout(() => resolve({
+            functional: true,
+            render (h) {
+              return h('span', { class: ['b'] }, 'testAsync')
+            }
+          }), 1)
+        }
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true"><span class="b">testAsync</span></div>')
+      done()
+    })
+  })
+
+  it('renders async component (functional, multiple nodes)', done => {
+    renderVmWithOptions({
+      template: `
+        <div>
+          <test-async></test-async>
+        </div>
+      `,
+      components: {
+        testAsync (resolve) {
+          setTimeout(() => resolve({
+            functional: true,
+            render (h) {
+              return [
+                h('span', { class: ['a'] }, 'foo'),
+                h('span', { class: ['b'] }, 'bar')
+              ]
+            }
+          }), 1)
+        }
+      }
+    }, result => {
+      expect(result).toContain(
+        '<div data-server-rendered="true">' +
+          '<span class="a">foo</span>' +
+          '<span class="b">bar</span>' +
+        '</div>'
+      )
+      done()
+    })
+  })
+
   it('should catch async component error', done => {
     Vue.config.silent = true
     renderToString(new Vue({

From 35dc8c2555da884bfb65451391887966bc411a98 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Mon, 12 Mar 2018 21:34:41 +0800
Subject: [PATCH 438/911] types: add Fragment in RenderState typing (#7802)

---
 src/server/render-context.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/server/render-context.js b/src/server/render-context.js
index b808f6a838d..178140cdc4d 100644
--- a/src/server/render-context.js
+++ b/src/server/render-context.js
@@ -6,7 +6,12 @@ type RenderState = {
   type: 'Element';
   rendered: number;
   total: number;
+  children: Array<VNode>;
   endTag: string;
+} | {
+  type: 'Fragment';
+  rendered: number;
+  total: number;
   children: Array<VNode>;
 } | {
   type: 'Component';
@@ -74,7 +79,7 @@ export class RenderContext {
           this.renderNode(children[rendered], false, this)
         } else {
           this.renderStates.pop()
-          if (lastState.endTag) {
+          if (lastState.type === 'Element') {
             this.write(lastState.endTag, this.next)
           } else {
             this.next()

From 702000971c5a355c937607edb930b67311c78f5d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 12 Mar 2018 09:27:50 -0400
Subject: [PATCH 439/911] chore: fix typo

---
 src/server/render.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/server/render.js b/src/server/render.js
index c570cc78176..592a6175c5f 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -191,7 +191,8 @@ function renderAsyncComponent (node, isRoot, context) {
       tag
     )
     if (resolvedNode) {
-      if (resolvedNode.componnetInstance) {
+      if (resolvedNode.componentOptions) {
+        // normal component
         renderComponent(resolvedNode, isRoot, context)
       } else if (!Array.isArray(resolvedNode)) {
         // single return node from functional component

From cf0b1b745f6b98f4e010f2e0b4c2351bb5a7b812 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 12 Mar 2018 09:34:02 -0400
Subject: [PATCH 440/911] ci: use yarn.lock instead of package-lock.json

---
 .circleci/config.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 908a6968b9b..8abef177ef6 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -12,12 +12,12 @@ jobs:
       - checkout
       - restore_cache:
           keys:
-            - v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
+            - v1-vue-{{ .Branch }}-{{ checksum "yarn.lock" }}
             - v1-vue-{{ .Branch }}-
             - v1-vue-
       - run: npm install
       - save_cache:
-          key: v1-vue-{{ .Branch }}-{{ checksum "package-lock.json" }}
+          key: v1-vue-{{ .Branch }}-{{ checksum "yarn.lock" }}
           paths:
             - node_modules/
       - persist_to_workspace:

From 984927a1a98d10ad8af44f2accfb08d34d517610 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 12 Mar 2018 10:50:27 -0400
Subject: [PATCH 441/911] fix: fix regression on duplicate component init when
 using shared data objects

fix #7805
---
 src/core/vdom/create-component.js             | 23 ++++---------
 .../modules/vdom/create-component.spec.js     |  5 ---
 .../modules/vdom/patch/edge-cases.spec.js     | 32 +++++++++++++++++++
 3 files changed, 38 insertions(+), 22 deletions(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 7872bd2a5e5..8957822470b 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -32,7 +32,7 @@ import {
   renderRecyclableComponentTemplate
 } from 'weex/runtime/recycle-list/render-component-template'
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 const componentVNodeHooks = {
   init (
     vnode: VNodeWithData,
@@ -189,8 +189,8 @@ export function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data)
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data)
 
   // return a placeholder vnode
   const name = Ctor.options.name || tag
@@ -234,22 +234,11 @@ export function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data: VNodeData) {
-  if (!data.hook) {
-    data.hook = {}
-  }
+function installComponentHooks (data: VNodeData) {
+  const hooks = data.hook || (data.hook = {})
   for (let i = 0; i < hooksToMerge.length; i++) {
     const key = hooksToMerge[i]
-    const fromParent = data.hook[key]
-    const ours = componentVNodeHooks[key]
-    data.hook[key] = fromParent ? mergeHook(ours, fromParent) : ours
-  }
-}
-
-function mergeHook (one: Function, two: Function): Function {
-  return function (a, b, c, d) {
-    one(a, b, c, d)
-    two(a, b, c, d)
+    hooks[key] = componentVNodeHooks[key]
   }
 }
 
diff --git a/test/unit/modules/vdom/create-component.spec.js b/test/unit/modules/vdom/create-component.spec.js
index 6b88ac7d66f..db0c59e3746 100644
--- a/test/unit/modules/vdom/create-component.spec.js
+++ b/test/unit/modules/vdom/create-component.spec.js
@@ -19,12 +19,10 @@ describe('create-component', () => {
       props: ['msg'],
       render () {}
     }
-    const init = jasmine.createSpy()
     const data = {
       props: { msg: 'hello world' },
       attrs: { id: 1 },
       staticAttrs: { class: 'foo' },
-      hook: { init },
       on: { notify: 'onNotify' }
     }
     const vnode = createComponent(child, data, vm, vm)
@@ -38,9 +36,6 @@ describe('create-component', () => {
     expect(vnode.elm).toBeUndefined()
     expect(vnode.ns).toBeUndefined()
     expect(vnode.context).toEqual(vm)
-
-    vnode.data.hook.init(vnode)
-    expect(init.calls.argsFor(0)[0]).toBe(vnode)
   })
 
   it('create a component when resolved with async loading', done => {
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index adcfc95eedc..7555833c289 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -374,4 +374,36 @@ describe('vdom patch: edge cases', () => {
     expect(vm.$el.querySelector('custom-foo').getAttribute('selected')).toBe('1')
     Vue.config.ignoredElements = []
   })
+
+  // #7805
+  it('should not cause duplicate init when components share data object', () => {
+    const Base = {
+      render (h) {
+        return h('div', this.$options.name)
+      }
+    }
+
+    const Foo = {
+      name: 'Foo',
+      extends: Base
+    }
+
+    const Bar = {
+      name: 'Bar',
+      extends: Base
+    }
+
+    const vm = new Vue({
+      render (h) {
+        const data = { staticClass: 'text-red' }
+
+        return h('div', [
+          h(Foo, data),
+          h(Bar, data)
+        ])
+      }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('FooBar')
+  })
 })

From 4378fc5124067c2b3a3517dd7f527edd9be2ad37 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 12 Mar 2018 11:40:35 -0400
Subject: [PATCH 442/911] fix: fix keyName checking for arrow keys in IE11

fix #7806
---
 src/compiler/codegen/events.js | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 58e7b014760..4f9222466ad 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -22,10 +22,11 @@ const keyNames: { [key: string]: string | Array<string> } = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 }
 

From 215f877d1b7eb6583f7adf15676ead8611f07379 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 12 Mar 2018 13:05:31 -0400
Subject: [PATCH 443/911] fix(keep-alive): run prune after render for correct
 active component check

fix #7566
---
 src/core/components/keep-alive.js             | 10 +++----
 .../component/component-keep-alive.spec.js    | 29 +++++++++++++++++++
 2 files changed, 34 insertions(+), 5 deletions(-)

diff --git a/src/core/components/keep-alive.js b/src/core/components/keep-alive.js
index 53dd264aaa1..fb4cf1e883b 100644
--- a/src/core/components/keep-alive.js
+++ b/src/core/components/keep-alive.js
@@ -71,13 +71,13 @@ export default {
     }
   },
 
-  watch: {
-    include (val: string | RegExp | Array<string>) {
+  mounted () {
+    this.$watch('include', val => {
       pruneCache(this, name => matches(val, name))
-    },
-    exclude (val: string | RegExp | Array<string>) {
+    })
+    this.$watch('exclude', val => {
       pruneCache(this, name => !matches(val, name))
-    }
+    })
   },
 
   render () {
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index b89fbdc9d65..49f7dd60d71 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -393,6 +393,35 @@ describe('Component keep-alive', () => {
     }).then(done)
   })
 
+  it('prune cache on include/exclude change + view switch', done => {
+    const vm = new Vue({
+      template: `
+        <div>
+          <keep-alive :include="include">
+            <component :is="view"></component>
+          </keep-alive>
+        </div>
+      `,
+      data: {
+        view: 'one',
+        include: 'one,two'
+      },
+      components
+    }).$mount()
+
+    vm.view = 'two'
+    waitForUpdate(() => {
+      assertHookCalls(one, [1, 1, 1, 1, 0])
+      assertHookCalls(two, [1, 1, 1, 0, 0])
+      vm.include = 'one'
+      vm.view = 'one'
+    }).then(() => {
+      assertHookCalls(one, [1, 1, 2, 1, 0])
+      // two should be pruned
+      assertHookCalls(two, [1, 1, 1, 1, 1])
+    }).then(done)
+  })
+
   it('should not prune currently active instance', done => {
     const vm = new Vue({
       template: `

From 6dd73e9ee44c09f04d3f616fcce18750a55e2e4f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 12 Mar 2018 15:39:39 -0400
Subject: [PATCH 444/911] fix: named slots for nested functional components

Named slots should be respecred when passing raw children down multiple
layers of functional components.

fix #7710
---
 src/core/vdom/create-functional-component.js  | 22 +++++++++----
 .../features/component/component-slot.spec.js | 31 +++++++++++++++++++
 2 files changed, 47 insertions(+), 6 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index c4e4cf9e80e..fb21cdab218 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -10,6 +10,7 @@ import { installRenderHelpers } from '../instance/render-helpers/index'
 import {
   isDef,
   isTrue,
+  hasOwn,
   camelize,
   emptyObject,
   validateProp
@@ -23,6 +24,21 @@ export function FunctionalRenderContext (
   Ctor: Class<Component>
 ) {
   const options = Ctor.options
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  let contextVm
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent)
+    // $flow-disable-line
+    contextVm._original = parent
+  } else {
+    contextVm = parent
+    // $flow-disable-line
+    parent = parent._original
+  }
+  const isCompiled = isTrue(options._compiled)
+  const needNormalization = !isCompiled
+
   this.data = data
   this.props = props
   this.children = children
@@ -31,12 +47,6 @@ export function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent)
   this.slots = () => resolveSlots(children, parent)
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  const contextVm = Object.create(parent)
-  const isCompiled = isTrue(options._compiled)
-  const needNormalization = !isCompiled
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 28d6555ee65..286dcb9cce9 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -824,4 +824,35 @@ describe('Component slot', () => {
       expect(vm.$el.textContent).toBe('hello')
     }).then(done)
   })
+
+  it('should allow passing named slots as raw children down multiple layers of functional component', () => {
+    const CompB = {
+      functional: true,
+      render (h, { slots }) {
+        return slots().foo
+      }
+    }
+
+    const CompA = {
+      functional: true,
+      render (h, { children }) {
+        return h(CompB, children)
+      }
+    }
+
+    const vm = new Vue({
+      components: {
+        CompA
+      },
+      template: `
+        <div>
+          <comp-a>
+            <span slot="foo">foo</span>
+          </comp-a>
+        </div>
+      `
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('foo')
+  })
 })

From a6169d1eb71d64eacddf1738e72d21725e2bff00 Mon Sep 17 00:00:00 2001
From: Hiroki Osame <hiroki.osame@gmail.com>
Date: Wed, 14 Mar 2018 00:05:58 +0900
Subject: [PATCH 445/911] fix(model): fix static input type being overwritten
 by v-bind object (#7819)

fix #7811
---
 src/platforms/web/compiler/modules/model.js          |  2 +-
 test/unit/features/directives/model-checkbox.spec.js | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/compiler/modules/model.js b/src/platforms/web/compiler/modules/model.js
index a7426c0204f..8d784fe4695 100644
--- a/src/platforms/web/compiler/modules/model.js
+++ b/src/platforms/web/compiler/modules/model.js
@@ -34,7 +34,7 @@ function preTransformNode (el: ASTElement, options: CompilerOptions) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type')
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = `(${map['v-bind']}).type`
     }
 
diff --git a/test/unit/features/directives/model-checkbox.spec.js b/test/unit/features/directives/model-checkbox.spec.js
index e102af62609..2b73e23d302 100644
--- a/test/unit/features/directives/model-checkbox.spec.js
+++ b/test/unit/features/directives/model-checkbox.spec.js
@@ -337,4 +337,15 @@ describe('Directive v-model checkbox', () => {
       expect(vm.$el.children[1].textContent).toBe('false')
     }).then(done)
   })
+  
+  // #7811
+  it('type should not be overwritten by v-bind', () => {
+    const vm = new Vue({
+      data: {
+        test: true
+      },
+      template: '<input type="checkbox" v-model="test" v-bind="$attrs">'
+    }).$mount()
+    expect(vm.$el.type).toBe('checkbox')
+  })
 })

From 1a979c44d6543d89f8a7e26ad7f995b1bf2aee3c Mon Sep 17 00:00:00 2001
From: leon <jinzhubaofu@users.noreply.github.com>
Date: Tue, 13 Mar 2018 23:07:58 +0800
Subject: [PATCH 446/911] fix(ssr): fix v-show inline style rendering when
 style binding is array (#7814)

fix #7813
---
 src/platforms/web/server/directives/show.js |  6 +++++-
 test/ssr/ssr-string.spec.js                 | 11 +++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/server/directives/show.js b/src/platforms/web/server/directives/show.js
index 5473fb2bd4d..7493b27e087 100644
--- a/src/platforms/web/server/directives/show.js
+++ b/src/platforms/web/server/directives/show.js
@@ -3,6 +3,10 @@
 export default function show (node: VNodeWithData, dir: VNodeDirective) {
   if (!dir.value) {
     const style: any = node.data.style || (node.data.style = {})
-    style.display = 'none'
+    if (Array.isArray(style)) {
+      style.push({ display: 'none' })
+    } else {
+      style.display = 'none'
+    }
   }
 }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 4d3ace46019..5300bbfefa5 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -267,6 +267,17 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('v-show directive merge with style', done => {
+    renderVmWithOptions({
+      template: '<div :style="[{lineHeight: 1}]" v-show="false"><span>inner</span></div>'
+    }, res => {
+      expect(res).toContain(
+        '<div data-server-rendered="true" style="line-height:1;display:none;"><span>inner</span></div>'
+      )
+      done()
+    })
+  })
+
   it('v-show directive not passed to child', done => {
     renderVmWithOptions({
       template: '<foo v-show="false"></foo>',

From 9084747e307dc9b415ff8e2a788c6a585a2a8f6c Mon Sep 17 00:00:00 2001
From: Piotr Kaminski <piotr@ideanest.com>
Date: Tue, 13 Mar 2018 08:09:49 -0700
Subject: [PATCH 447/911] fix(core): Make set/delete warning condition for
 undefined, null and (#7818)

primitive values more precise.  Corrects #7452
---
 src/core/observer/index.js                  | 12 ++++++------
 test/unit/modules/observer/observer.spec.js |  4 ++--
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 49d28a291d5..4a030ed7f99 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -10,6 +10,8 @@ import {
   hasProto,
   isObject,
   isPlainObject,
+  isPrimitive,
+  isUndef,
   isValidArrayIndex,
   isServerRendering
 } from '../util/index'
@@ -195,10 +197,9 @@ export function defineReactive (
  */
 export function set (target: Array<any> | Object, key: any, val: any): any {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(`Cannot set reactive property on non-object/array value: ${target}`)
+    warn(`Cannot set reactive property on undefined, null, or primitive value: ${(target: any)}`)
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key)
@@ -231,10 +232,9 @@ export function set (target: Array<any> | Object, key: any, val: any): any {
  */
 export function del (target: Array<any> | Object, key: any) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(`Cannot delete reactive property on non-object/array value: ${target}`)
+    warn(`Cannot delete reactive property on undefined, null, or primitive value: ${(target: any)}`)
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1)
diff --git a/test/unit/modules/observer/observer.spec.js b/test/unit/modules/observer/observer.spec.js
index 2002682328c..5f075bccc95 100644
--- a/test/unit/modules/observer/observer.spec.js
+++ b/test/unit/modules/observer/observer.spec.js
@@ -360,12 +360,12 @@ describe('Observer', () => {
     try {
       setProp(null, 'foo', 1)
     } catch (e) {}
-    expect(`Cannot set reactive property on non-object/array value`).toHaveBeenWarned()
+    expect(`Cannot set reactive property on undefined, null, or primitive value`).toHaveBeenWarned()
 
     try {
       delProp(null, 'foo')
     } catch (e) {}
-    expect(`Cannot delete reactive property on non-object/array value`).toHaveBeenWarned()
+    expect(`Cannot delete reactive property on undefined, null, or primitive value`).toHaveBeenWarned()
   })
 
   it('should lazy invoke existing getters', () => {

From 62a922e865f5e578f67b386cb614abfc173d7851 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 13 Mar 2018 17:48:52 -0400
Subject: [PATCH 448/911] fix: fix wrongly matched named slots in functional
 components

This is a subtle edge case caused when a stateful component triggers
a self re-render, which reuses cached slot nodes. The cached slot
nodes, if returned from a functional render fn, gets the fnContext
property which causes subsequent slot resolving to not function
properly. To fix this, nodes returned from functional components
need to be cloned before getting assigned fnContext.

fix #7817
---
 src/core/vdom/create-functional-component.js  | 26 ++++++++++------
 .../features/component/component-slot.spec.js | 31 +++++++++++++++++++
 2 files changed, 48 insertions(+), 9 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index fb21cdab218..efed801db7d 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import VNode from './vnode'
+import VNode, { cloneVNode } from './vnode'
 import { createElement } from './create-element'
 import { resolveInject } from '../instance/inject'
 import { normalizeChildren } from '../vdom/helpers/normalize-children'
@@ -32,6 +32,9 @@ export function FunctionalRenderContext (
     // $flow-disable-line
     contextVm._original = parent
   } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
     contextVm = parent
     // $flow-disable-line
     parent = parent._original
@@ -102,23 +105,28 @@ export function createFunctionalComponent (
   const vnode = options.render.call(null, renderContext._c, renderContext)
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options)
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     const vnodes = normalizeChildren(vnode) || []
+    const res = new Array(vnodes.length)
     for (let i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options)
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options)
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm
-  vnode.fnOptions = options
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  const clone = cloneVNode(vnode)
+  clone.fnContext = contextVm
+  clone.fnOptions = options
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot
+    (clone.data || (clone.data = {})).slot = data.slot
   }
+  return clone
 }
 
 function mergeProps (to, from) {
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 286dcb9cce9..e667a46ef89 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -855,4 +855,35 @@ describe('Component slot', () => {
 
     expect(vm.$el.textContent).toBe('foo')
   })
+
+  // #7817
+  it('should not match wrong named slot in functional component on re-render', done => {
+    const Functional = {
+      functional: true,
+      render: (h, ctx) => ctx.slots().default
+    }
+
+    const Stateful = {
+      data () {
+        return { ok: true }
+      },
+      render (h) {
+        this.ok // register dep
+        return h('div', [
+          h(Functional, this.$slots.named)
+        ])
+      }
+    }
+
+    const vm = new Vue({
+      template: `<stateful ref="stateful"><div slot="named">foo</div></stateful>`,
+      components: { Stateful }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('foo')
+    vm.$refs.stateful.ok = false
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe('foo')
+    }).then(done)
+  })
 })

From 90891709708e8ebdc1522eed678a49eb9f312fda Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 13 Mar 2018 18:14:16 -0400
Subject: [PATCH 449/911] build: build 2.5.16

---
 dist/vue.common.js                          | 111 ++--
 dist/vue.esm.js                             | 111 ++--
 dist/vue.js                                 | 111 ++--
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  |  98 ++--
 dist/vue.runtime.esm.js                     |  98 ++--
 dist/vue.runtime.js                         |  98 ++--
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 143 +++--
 packages/vue-server-renderer/build.js       | 143 +++--
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  32 +-
 packages/vue-template-compiler/build.js     |  32 +-
 packages/vue-template-compiler/package.json |   2 +-
 packages/weex-template-compiler/build.js    | 345 ++++++++---
 packages/weex-vue-framework/factory.js      | 596 +++++++++++---------
 packages/weex-vue-framework/index.js        | 159 ++----
 17 files changed, 1230 insertions(+), 859 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 112c0f38872..44fe0ecc29f 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1025,10 +1025,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -1061,10 +1060,9 @@ function set (target, key, val) {
  */
 function del (target, key) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot delete reactive property on non-object/array value: " + target));
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
@@ -3983,6 +3981,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -3991,12 +4007,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -4052,23 +4062,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -4098,7 +4113,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -4256,8 +4271,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -4297,22 +4312,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -4960,13 +4964,15 @@ var KeepAlive = {
     }
   },
 
-  watch: {
-    include: function include (val) {
-      pruneCache(this, function (name) { return matches(val, name); });
-    },
-    exclude: function exclude (val) {
-      pruneCache(this, function (name) { return !matches(val, name); });
-    }
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
   },
 
   render: function render () {
@@ -5084,7 +5090,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.15';
+Vue.version = '2.5.16';
 
 /*  */
 
@@ -9049,7 +9055,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -9719,7 +9725,7 @@ function preTransformNode (el, options) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type');
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = "(" + (map['v-bind']) + ").type";
     }
 
@@ -9972,10 +9978,11 @@ var keyNames = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 };
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 4aa76229f53..d20f461fa39 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1023,10 +1023,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -1059,10 +1058,9 @@ function set (target, key, val) {
  */
 function del (target, key) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot delete reactive property on non-object/array value: " + target));
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
@@ -3981,6 +3979,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -3989,12 +4005,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -4050,23 +4060,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -4096,7 +4111,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -4254,8 +4269,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -4295,22 +4310,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -4958,13 +4962,15 @@ var KeepAlive = {
     }
   },
 
-  watch: {
-    include: function include (val) {
-      pruneCache(this, function (name) { return matches(val, name); });
-    },
-    exclude: function exclude (val) {
-      pruneCache(this, function (name) { return !matches(val, name); });
-    }
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
   },
 
   render: function render () {
@@ -5082,7 +5088,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.15';
+Vue.version = '2.5.16';
 
 /*  */
 
@@ -9047,7 +9053,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -9717,7 +9723,7 @@ function preTransformNode (el, options) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type');
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = "(" + (map['v-bind']) + ").type";
     }
 
@@ -9970,10 +9976,11 @@ var keyNames = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 };
 
diff --git a/dist/vue.js b/dist/vue.js
index b9492bb510a..657cb37eaa6 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1029,10 +1029,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if ("development" !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -1065,10 +1064,9 @@ function set (target, key, val) {
  */
 function del (target, key) {
   if ("development" !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot delete reactive property on non-object/array value: " + target));
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
@@ -3975,6 +3973,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -3983,12 +3999,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -4044,23 +4054,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -4090,7 +4105,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -4248,8 +4263,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -4289,22 +4304,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -4945,13 +4949,15 @@ var KeepAlive = {
     }
   },
 
-  watch: {
-    include: function include (val) {
-      pruneCache(this, function (name) { return matches(val, name); });
-    },
-    exclude: function exclude (val) {
-      pruneCache(this, function (name) { return !matches(val, name); });
-    }
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
   },
 
   render: function render () {
@@ -5069,7 +5075,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.15';
+Vue.version = '2.5.16';
 
 /*  */
 
@@ -9034,7 +9040,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -9704,7 +9710,7 @@ function preTransformNode (el, options) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type');
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = "(" + (map['v-bind']) + ").type";
     }
 
@@ -9957,10 +9963,11 @@ var keyNames = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 };
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 22e37d62e70..37febff24c6 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var y=Object.freeze({});function M(e){return null==e}function D(e){return null!=e}function T(e){return!0===e}function E(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function P(e){return null!==e&&"object"==typeof e}var r=Object.prototype.toString;function l(e){return"[object Object]"===r.call(e)}function i(e){var t=parseFloat(String(e));return 0<=t&&Math.floor(t)===t&&isFinite(e)}function t(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function F(e){var t=parseFloat(e);return isNaN(t)?e:t}function s(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var c=s("slot,component",!0),u=s("key,ref,slot,slot-scope,is");function 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index c05000d2d8a..7dce2a56ce4 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1021,10 +1021,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -1057,10 +1056,9 @@ function set (target, key, val) {
  */
 function del (target, key) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot delete reactive property on non-object/array value: " + target));
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
@@ -3979,6 +3977,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -3987,12 +4003,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -4048,23 +4058,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -4094,7 +4109,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -4252,8 +4267,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -4293,22 +4308,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -4956,13 +4960,15 @@ var KeepAlive = {
     }
   },
 
-  watch: {
-    include: function include (val) {
-      pruneCache(this, function (name) { return matches(val, name); });
-    },
-    exclude: function exclude (val) {
-      pruneCache(this, function (name) { return !matches(val, name); });
-    }
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
   },
 
   render: function render () {
@@ -5080,7 +5086,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.15';
+Vue.version = '2.5.16';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 17c2b89d2b8..f5878cf5af0 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1019,10 +1019,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -1055,10 +1054,9 @@ function set (target, key, val) {
  */
 function del (target, key) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot delete reactive property on non-object/array value: " + target));
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
@@ -3977,6 +3975,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -3985,12 +4001,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -4046,23 +4056,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -4092,7 +4107,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -4250,8 +4265,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -4291,22 +4306,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -4954,13 +4958,15 @@ var KeepAlive = {
     }
   },
 
-  watch: {
-    include: function include (val) {
-      pruneCache(this, function (name) { return matches(val, name); });
-    },
-    exclude: function exclude (val) {
-      pruneCache(this, function (name) { return !matches(val, name); });
-    }
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
   },
 
   render: function render () {
@@ -5078,7 +5084,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.15';
+Vue.version = '2.5.16';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index bf26bf09f6a..a78cbb354c3 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -1025,10 +1025,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if ("development" !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -1061,10 +1060,9 @@ function set (target, key, val) {
  */
 function del (target, key) {
   if ("development" !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot delete reactive property on non-object/array value: " + target));
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
@@ -3971,6 +3969,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -3979,12 +3995,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -4040,23 +4050,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -4086,7 +4101,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -4244,8 +4259,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -4285,22 +4300,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -4941,13 +4945,15 @@ var KeepAlive = {
     }
   },
 
-  watch: {
-    include: function include (val) {
-      pruneCache(this, function (name) { return matches(val, name); });
-    },
-    exclude: function exclude (val) {
-      pruneCache(this, function (name) { return !matches(val, name); });
-    }
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
   },
 
   render: function render () {
@@ -5065,7 +5071,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.15';
+Vue.version = '2.5.16';
 
 /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 3ea65e4502c..2484d1aefb1 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.15
+ * Vue.js v2.5.16
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";var y=Object.freeze({});function L(t){return null==t}function N(t){return null!=t}function E(t){return!0===t}function j(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function M(t){return null!==t&&"object"==typeof t}var r=Object.prototype.toString;function u(t){return"[object Object]"===r.call(t)}function o(t){var e=parseFloat(String(t));return 0<=e&&Math.floor(e)===e&&isFinite(t)}function e(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function F(t){var e=parseFloat(t);return isNaN(e)?t:e}function s(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}s("slot,component",!0);var c=s("key,ref,slot,slot-scope,is");function l(t,e){if(t.length){var n=t.indexOf(e);if(-1<n)return t.splice(n,1)}}var n=Object.prototype.hasOwnProperty;function f(t,e){return n.call(t,e)}function t(e){var n=Object.create(null);return function(t){return n[t]||(n[t]=e(t))}}var i=/-(\w)/g,p=t(function(t){return t.replace(i,function(t,e){return e?e.toUpperCase():""})}),d=t(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),a=/\B([A-Z])/g,g=t(function(t){return t.replace(a,"-$1").toLowerCase()});var v=Function.prototype.bind?function(t,e){return t.bind(e)}:function(n,r){function t(t){var e=arguments.length;return e?1<e?n.apply(r,arguments):n.call(r,t):n.call(r)}return t._length=n.length,t};function h(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function m(t,e){for(var n in e)t[n]=e[n];return t}function _(t){for(var e={},n=0;n<t.length;n++)t[n]&&m(e,t[n]);return e}function b(t,e,n){}var C=function(t,e,n){return!1},w=function(t){return t};function A(e,n){if(e===n)return!0;var t=M(e),r=M(n);if(!t||!r)return!t&&!r&&String(e)===String(n);try{var o=Array.isArray(e),i=Array.isArray(n);if(o&&i)return e.length===n.length&&e.every(function(t,e){return A(t,n[e])});if(o||i)return!1;var a=Object.keys(e),s=Object.keys(n);return a.length===s.length&&a.every(function(t){return A(e[t],n[t])})}catch(t){return!1}}function $(t,e){for(var n=0;n<t.length;n++)if(A(t[n],e))return n;return-1}function R(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}var 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e,n,r=t.data;if(N(r))for(N(e=r.hook)&&N(e=e.destroy)&&e(t),e=0;e<g.destroy.length;++e)g.destroy[e](t);if(N(e=t.children))for(n=0;n<t.children.length;++n)w(t.children[n])}function A(t,e,n,r){for(;n<=r;++n){var o=e[n];N(o)&&(N(o.tag)?(a(o),w(o)):i(o.elm))}}function a(t,e){if(N(e)||N(t.data)){var n,r=g.remove.length+1;for(N(e)?e.listeners+=r:e=function(t,e){function n(){0==--n.listeners&&i(t)}return n.listeners=e,n}(t.elm,r),N(n=t.componentInstance)&&N(n=n._vnode)&&N(n.data)&&a(n,e),n=0;n<g.remove.length;++n)g.remove[n](t,e);N(n=t.data.hook)&&N(n=n.remove)?n(t,e):e()}else i(t.elm)}function $(t,e,n,r){for(var o=n;o<r;o++){var i=e[o];if(N(i)&&Xn(t,i))return o}}function x(t,e,n,r){if(t!==e){var o=e.elm=t.elm;if(S(t.isAsyncPlaceholder))N(e.asyncFactory.resolved)?k(t.elm,e,n):e.isAsyncPlaceholder=!0;else if(S(e.isStatic)&&S(t.isStatic)&&e.key===t.key&&(S(e.isCloned)||S(e.isOnce)))e.componentInstance=t.componentInstance;else{var i,a=e.data;N(a)&&N(i=a.hook)&&N(i=i.prepatch)&&i(t,e);var s=t.children,c=e.children;if(N(a)&&C(e)){for(i=0;i<g.update.length;++i)g.update[i](t,e);N(i=a.hook)&&N(i=i.update)&&i(t,e)}L(e.text)?N(s)&&N(c)?s!==c&&function(t,e,n,r,o){for(var i,a,s,c=0,u=0,l=e.length-1,f=e[0],p=e[l],d=n.length-1,v=n[0],h=n[d],m=!o;c<=l&&u<=d;)L(f)?f=e[++c]:L(p)?p=e[--l]:Xn(f,v)?(x(f,v,r),f=e[++c],v=n[++u]):Xn(p,h)?(x(p,h,r),p=e[--l],h=n[--d]):Xn(f,h)?(x(f,h,r),m&&_.insertBefore(t,f.elm,_.nextSibling(p.elm)),f=e[++c],h=n[--d]):(Xn(p,v)?(x(p,v,r),m&&_.insertBefore(t,p.elm,f.elm),p=e[--l]):(L(i)&&(i=Gn(e,c,l)),L(a=N(v.key)?i[v.key]:$(v,e,c,l))?b(v,r,t,f.elm,!1,n,u):Xn(s=e[a],v)?(x(s,v,r),e[a]=void 0,m&&_.insertBefore(t,s.elm,f.elm)):b(v,r,t,f.elm,!1,n,u)),v=n[++u]);l<c?y(t,L(n[d+1])?null:n[d+1].elm,n,u,d,r):d<u&&A(0,e,c,l)}(o,s,c,n,r):N(c)?(N(t.text)&&_.setTextContent(o,""),y(o,null,c,0,c.length-1,n)):N(s)?A(0,s,0,s.length-1):N(t.text)&&_.setTextContent(o,""):t.text!==e.text&&_.setTextContent(o,e.text),N(a)&&N(i=a.hook)&&N(i=i.postpatch)&&i(t,e)}}}function 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u=N(t.nodeType);if(!u&&Xn(t,e))x(t,e,c,r);else{if(u){if(1===t.nodeType&&t.hasAttribute(j)&&(t.removeAttribute(j),n=!0),S(n)&&k(t,e,c))return O(e,c,!0),t;a=t,t=new ct(_.tagName(a).toLowerCase(),{},[],void 0,a)}var l=t.elm,f=_.parentNode(l);if(b(e,c,l._leaveCb?null:f,_.nextSibling(l)),N(e.parent))for(var p=e.parent,d=C(e);p;){for(var v=0;v<g.destroy.length;++v)g.destroy[v](p);if(p.elm=e.elm,d){for(var h=0;h<g.create.length;++h)g.create[h](qn,p);var m=p.data.hook.insert;if(m.merged)for(var y=1;y<m.fns.length;y++)m.fns[y]()}else Wn(p);p=p.parent}N(f)?A(0,[t],0,0):N(t.tag)&&w(t)}}return O(e,c,s),e.elm}N(t)&&w(t)}}({nodeOps:Hn,modules:[ir,cr,vr,mr,kr,U?{create:Qr,activate:Qr,remove:function(t,e){!0!==t.data.show?Gr(t,e):e()}}:{}].concat(er)});W&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&so(t,"input")});var to={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){to.componentUpdated(t,e,n)}):eo(t,e,n.context),t._vOptions=[].map.call(t.options,oo)):("textarea"===n.tag||Bn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",io),t.addEventListener("compositionend",ao),t.addEventListener("change",ao),W&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){eo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,oo);if(o.some(function(t,e){return!A(t,r[e])}))(t.multiple?e.value.some(function(t){return ro(t,o)}):e.value!==e.oldValue&&ro(e.value,o))&&so(t,"change")}}};function eo(t,e,n){no(t,e,n),(z||q)&&setTimeout(function(){no(t,e,n)},0)}function no(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=-1<$(r,oo(a)),a.selected!==i&&(a.selected=i);else if(A(oo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function ro(e,t){return t.every(function(t){return!A(t,e)})}function oo(t){return"_value"in t?t._value:t.value}function io(t){t.target.composing=!0}function ao(t){t.target.composing&&(t.target.composing=!1,so(t.target,"input"))}function so(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function co(t){return!t.componentInstance||t.data&&t.data.transition?t:co(t.componentInstance._vnode)}var uo={model:to,show:{bind:function(t,e,n){var r=e.value,o=(n=co(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Xr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=co(n)).data&&n.data.transition?(n.data.show=!0,r?Xr(n,function(){t.style.display=t.__vOriginalDisplay}):Gr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},lo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function fo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?fo(ce(e.children)):t}function po(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[p(i)]=o[i];return e}function vo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var ho={name:"transition",props:lo,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||se(t)})).length){var r=this.mode,o=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return o;var i=fo(o);if(!i)return o;if(this._leaving)return vo(t,o);var a="__transition-"+this._uid+"-";i.key=null==i.key?i.isComment?a+"comment":a+i.tag:E(i.key)?0===String(i.key).indexOf(a)?i.key:a+i.key:i.key;var s,c,u=(i.data||(i.data={})).transition=po(this),l=this._vnode,f=fo(l);if(i.data.directives&&i.data.directives.some(function(t){return"show"===t.name})&&(i.data.show=!0),f&&f.data&&(s=i,(c=f).key!==s.key||c.tag!==s.tag)&&!se(f)&&(!f.componentInstance||!f.componentInstance._vnode.isComment)){var p=f.data.transition=m({},u);if("out-in"===r)return this._leaving=!0,ne(p,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),vo(t,o);if("in-out"===r){if(se(i))return l;var d,v=function(){d()};ne(u,"afterEnter",v),ne(u,"enterCancelled",v),ne(p,"delayLeave",function(t){d=t})}}return o}}},mo=m({tag:String,moveClass:String},lo);function yo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function go(t){t.data.newPos=t.elm.getBoundingClientRect()}function _o(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete mo.mode;var bo={Transition:ho,TransitionGroup:{props:mo,render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=po(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),((n[c.key]=c).data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},beforeUpdate:function(){this.__patch__(this._vnode,this.kept,!1,!0),this._vnode=this.kept},updated:function(){var t=this.prevChildren,r=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,r)&&(t.forEach(yo),t.forEach(go),t.forEach(_o),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,e=n.style;Vr(n,r),e.transform=e.WebkitTransform=e.transitionDuration="",n.addEventListener(Nr,n._moveCb=function t(e){e&&!/transform$/.test(e.propertyName)||(n.removeEventListener(Nr,t),n._moveCb=null,Br(n,r))})}}))},methods:{hasMove:function(t,e){if(!Tr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Er(n,t)}),Sr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Wr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return vn.config.mustUseProp=function(t,e,n){return"value"===n&&On(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},vn.config.isReservedTag=Un,vn.config.isReservedAttr=xn,vn.config.getTagNamespace=function(t){return Rn(t)?"svg":"math"===t?"math":void 0},vn.config.isUnknownElement=function(t){if(!U)return!0;if(Un(t))return!1;if(t=t.toLowerCase(),null!=Vn[t])return Vn[t];var e=document.createElement(t);return-1<t.indexOf("-")?Vn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Vn[t]=/HTMLUnknownElement/.test(e.toString())},m(vn.options.directives,uo),m(vn.options.components,bo),vn.prototype.__patch__=U?Yr:b,vn.prototype.$mount=function(t,e){return t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,r=t,o=e,(n=this).$el=r,n.$options.render||(n.$options.render=lt),ge(n,"beforeMount"),new ke(n,function(){n._update(n._render(),o)},b,null,!0),o=!1,null==n.$vnode&&(n._isMounted=!0,ge(n,"mounted")),n;var n,r,o},U&&setTimeout(function(){k.devtools&&Q&&Q.emit("init",vn)},0),vn});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 90c93cc8591..c462e7cf26f 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -513,6 +513,27 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
+function cloneVNode (vnode) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.isCloned = true;
+  return cloned
+}
 
 /*  */
 
@@ -1148,10 +1169,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if ("development" !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -2139,7 +2159,11 @@ var modules = [
 function show (node, dir) {
   if (!dir.value) {
     var style = node.data.style || (node.data.style = {});
-    style.display = 'none';
+    if (Array.isArray(style)) {
+      style.push({ display: 'none' });
+    } else {
+      style.display = 'none';
+    }
   }
 }
 
@@ -2298,6 +2322,7 @@ RenderContext.prototype.next = function next () {
   }
   switch (lastState.type) {
     case 'Element':
+    case 'Fragment':
       var children = lastState.children;
     var total = lastState.total;
       var rendered = lastState.rendered++;
@@ -2305,7 +2330,11 @@ RenderContext.prototype.next = function next () {
         this.renderNode(children[rendered], false, this);
       } else {
         this.renderStates.pop();
-        this.write(lastState.endTag, this.next);
+        if (lastState.type === 'Element') {
+          this.write(lastState.endTag, this.next);
+        } else {
+          this.next();
+        }
       }
       break
     case 'Component':
@@ -3567,7 +3596,7 @@ function parseString (chr) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -4237,7 +4266,7 @@ function preTransformNode (el, options) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type');
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = "(" + (map['v-bind']) + ").type";
     }
 
@@ -4535,10 +4564,11 @@ var keyNames = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 };
 
@@ -7236,6 +7266,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -7244,12 +7292,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -7305,23 +7347,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -7351,7 +7398,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -7509,8 +7556,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -7550,22 +7597,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -7766,7 +7802,22 @@ function renderAsyncComponent (node, isRoot, context) {
       tag
     );
     if (resolvedNode) {
-      renderComponent(resolvedNode, isRoot, context);
+      if (resolvedNode.componentOptions) {
+        // normal component
+        renderComponent(resolvedNode, isRoot, context);
+      } else if (!Array.isArray(resolvedNode)) {
+        // single return node from functional component
+        renderNode(resolvedNode, isRoot, context);
+      } else {
+        // multiple return nodes from functional component
+        context.renderStates.push({
+          type: 'Fragment',
+          children: resolvedNode,
+          rendered: 0,
+          total: resolvedNode.length
+        });
+        context.next();
+      }
     } else {
       // invalid component, but this does not throw on the client
       // so render empty comment node
@@ -7808,9 +7859,10 @@ function renderStringNode$1 (el, context) {
     var children = el.children;
     context.renderStates.push({
       type: 'Element',
+      children: children,
       rendered: 0,
       total: children.length,
-      endTag: el.close, children: children
+      endTag: el.close
     });
     write(el.open, next);
   }
@@ -7840,9 +7892,10 @@ function renderElement (el, isRoot, context) {
     var children = el.children;
     context.renderStates.push({
       type: 'Element',
+      children: children,
       rendered: 0,
       total: children.length,
-      endTag: endTag, children: children
+      endTag: endTag
     });
     write(startTag, next);
   }
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 97b8af6b0eb..1a8a8b2a93c 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -515,6 +515,27 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
+function cloneVNode (vnode) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    vnode.children,
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.isCloned = true;
+  return cloned
+}
 
 /*  */
 
@@ -1150,10 +1171,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -2145,7 +2165,11 @@ var modules = [
 function show (node, dir) {
   if (!dir.value) {
     var style = node.data.style || (node.data.style = {});
-    style.display = 'none';
+    if (Array.isArray(style)) {
+      style.push({ display: 'none' });
+    } else {
+      style.display = 'none';
+    }
   }
 }
 
@@ -2396,6 +2420,7 @@ RenderContext.prototype.next = function next () {
   }
   switch (lastState.type) {
     case 'Element':
+    case 'Fragment':
       var children = lastState.children;
     var total = lastState.total;
       var rendered = lastState.rendered++;
@@ -2403,7 +2428,11 @@ RenderContext.prototype.next = function next () {
         this.renderNode(children[rendered], false, this);
       } else {
         this.renderStates.pop();
-        this.write(lastState.endTag, this.next);
+        if (lastState.type === 'Element') {
+          this.write(lastState.endTag, this.next);
+        } else {
+          this.next();
+        }
       }
       break
     case 'Component':
@@ -3310,7 +3339,7 @@ function parseString (chr) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -3980,7 +4009,7 @@ function preTransformNode (el, options) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type');
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = "(" + (map['v-bind']) + ").type";
     }
 
@@ -4278,10 +4307,11 @@ var keyNames = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 };
 
@@ -6981,6 +7011,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -6989,12 +7037,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -7050,23 +7092,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    setFunctionalContextForVNode(vnode, data, contextVm, options);
-    return vnode
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      setFunctionalContextForVNode(vnodes[i], data, contextVm, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
-    return vnodes
+    return res
   }
 }
 
-function setFunctionalContextForVNode (vnode, data, vm, options) {
-  vnode.fnContext = vm;
-  vnode.fnOptions = options;
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (data.slot) {
-    (vnode.data || (vnode.data = {})).slot = data.slot;
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -7096,7 +7143,7 @@ function mergeProps (to, from) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -7254,8 +7301,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -7295,22 +7342,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -7511,7 +7547,22 @@ function renderAsyncComponent (node, isRoot, context) {
       tag
     );
     if (resolvedNode) {
-      renderComponent(resolvedNode, isRoot, context);
+      if (resolvedNode.componentOptions) {
+        // normal component
+        renderComponent(resolvedNode, isRoot, context);
+      } else if (!Array.isArray(resolvedNode)) {
+        // single return node from functional component
+        renderNode(resolvedNode, isRoot, context);
+      } else {
+        // multiple return nodes from functional component
+        context.renderStates.push({
+          type: 'Fragment',
+          children: resolvedNode,
+          rendered: 0,
+          total: resolvedNode.length
+        });
+        context.next();
+      }
     } else {
       // invalid component, but this does not throw on the client
       // so render empty comment node
@@ -7553,9 +7604,10 @@ function renderStringNode$1 (el, context) {
     var children = el.children;
     context.renderStates.push({
       type: 'Element',
+      children: children,
       rendered: 0,
       total: children.length,
-      endTag: el.close, children: children
+      endTag: el.close
     });
     write(el.open, next);
   }
@@ -7585,9 +7637,10 @@ function renderElement (el, isRoot, context) {
     var children = el.children;
     context.renderStates.push({
       type: 'Element',
+      children: children,
       rendered: 0,
       total: children.length,
-      endTag: endTag, children: children
+      endTag: endTag
     });
     write(startTag, next);
   }
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 9fbb90e1662..b0369169d5a 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.15",
+  "version": "2.5.16",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 5797e6d1bc2..3e099caf13e 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -56,7 +56,9 @@ var emptyObject = Object.freeze({});
 
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
-
+function isUndef (v) {
+  return v === undefined || v === null
+}
 
 
 
@@ -67,7 +69,15 @@ var emptyObject = Object.freeze({});
 /**
  * Check if value is primitive
  */
-
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
 
 /**
  * Quick object check - this is primarily used to tell
@@ -1339,10 +1349,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if ("development" !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -2703,7 +2712,7 @@ function parseString (chr) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -3373,7 +3382,7 @@ function preTransformNode (el, options) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type');
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = "(" + (map['v-bind']) + ").type";
     }
 
@@ -3798,10 +3807,11 @@ var keyNames = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 };
 
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 0b8371d3103..dbffc8e2a0c 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -13,7 +13,9 @@ var emptyObject = Object.freeze({});
 
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
-
+function isUndef (v) {
+  return v === undefined || v === null
+}
 
 
 
@@ -24,7 +26,15 @@ var emptyObject = Object.freeze({});
 /**
  * Check if value is primitive
  */
-
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
 
 /**
  * Quick object check - this is primarily used to tell
@@ -1296,10 +1306,9 @@ function defineReactive (
  */
 function set (target, key, val) {
   if (process.env.NODE_ENV !== 'production' &&
-    !Array.isArray(target) &&
-    !isObject(target)
+    (isUndef(target) || isPrimitive(target))
   ) {
-    warn(("Cannot set reactive property on non-object/array value: " + target));
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
@@ -2305,7 +2314,7 @@ function parseString (chr) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -2975,7 +2984,7 @@ function preTransformNode (el, options) {
     if (map[':type'] || map['v-bind:type']) {
       typeBinding = getBindingAttr(el, 'type');
     }
-    if (!typeBinding && map['v-bind']) {
+    if (!map.type && !typeBinding && map['v-bind']) {
       typeBinding = "(" + (map['v-bind']) + ").type";
     }
 
@@ -3400,10 +3409,11 @@ var keyNames = {
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
-  up: 'ArrowUp',
-  left: 'ArrowLeft',
-  right: 'ArrowRight',
-  down: 'ArrowDown',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
   'delete': ['Backspace', 'Delete']
 };
 
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 8ea4631b281..93e5c526d92 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.15",
+  "version": "2.5.16",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",
diff --git a/packages/weex-template-compiler/build.js b/packages/weex-template-compiler/build.js
index 9da2ee9597c..d6951d52830 100644
--- a/packages/weex-template-compiler/build.js
+++ b/packages/weex-template-compiler/build.js
@@ -12,7 +12,9 @@ var emptyObject = Object.freeze({});
 
 // these helpers produces better vm code in JS engines due to their
 // explicitness and function inlining
-
+function isUndef (v) {
+  return v === undefined || v === null
+}
 
 
 
@@ -23,7 +25,15 @@ var emptyObject = Object.freeze({});
 /**
  * Check if value is primitive
  */
-
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
 
 /**
  * Quick object check - this is primarily used to tell
@@ -147,9 +157,35 @@ var camelize = cached(function (str) {
 
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
 
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
 
 /**
  * Convert an Array-like object to a real Array.
@@ -253,7 +289,8 @@ var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
 var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
 var doctype = /^<!DOCTYPE [^>]+>/i;
-var comment = /^<!--/;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
 var IS_REGEX_CAPTURING_BROKEN = false;
@@ -383,7 +420,7 @@ function parseHTML (html, options) {
         endTagLength = endTag.length;
         if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
           text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
             .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
         }
         if (shouldIgnoreFirstNewline(stackedTag, text)) {
@@ -633,7 +670,7 @@ function wrapFilter (exp, filter) {
   } else {
     var name = filter.slice(0, i);
     var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + "," + args)
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
   }
 }
 
@@ -704,8 +741,8 @@ function genComponentModel (
   if (trim) {
     valueExpression =
       "(typeof " + baseValueExpression + " === 'string'" +
-        "? " + baseValueExpression + ".trim()" +
-        ": " + baseValueExpression + ")";
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
   }
   if (number) {
     valueExpression = "_n(" + valueExpression + ")";
@@ -759,6 +796,9 @@ var expressionEndPos;
 
 
 function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
   len = val.length;
 
   if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
@@ -837,7 +877,6 @@ function parseString (chr) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -876,7 +915,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -1007,7 +1046,9 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = { value: value };
+  var newHandler = {
+    value: value.trim()
+  };
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -1072,7 +1113,7 @@ function getAndRemoveAttr (
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
+var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -1080,20 +1121,16 @@ var argRE = /:(.*)$/;
 var bindRE = /^:|^v-bind:/;
 var modifierRE = /\.[^.]+/g;
 
-var literalValueRE = /^(\{.*\}|\[.*\])$/;
-
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
 var warn;
-var literalPropId;
 var delimiters;
 var transforms;
 var preTransforms;
 var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
-var platformIsReservedTag;
 var platformGetTagNamespace;
 
 
@@ -1121,11 +1158,9 @@ function parse (
   options
 ) {
   warn = options.warn || baseWarn;
-  literalPropId = 0;
 
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
-  platformIsReservedTag = options.isReservedTag || no;
   platformGetTagNamespace = options.getTagNamespace || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
@@ -1416,6 +1451,8 @@ function processFor (el) {
   }
 }
 
+
+
 function parseFor (exp) {
   var inMatch = exp.match(forAliasRE);
   if (!inMatch) { return }
@@ -1594,15 +1631,6 @@ function processAttrs (el) {
             );
           }
         }
-        // optimize literal values in component props by wrapping them
-        // in an inline watcher to avoid unnecessary re-renders
-        if (
-          !platformIsReservedTag(el.tag) &&
-          el.tag !== 'slot' &&
-          literalValueRE.test(value.trim())
-        ) {
-          value = "_a(" + (literalPropId++) + ",function(){return " + value + "})";
-        }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
@@ -1861,10 +1889,10 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-// keyCode aliases
+// KeyboardEvent.keyCode aliases
 var keyCodes = {
   esc: 27,
   tab: 9,
@@ -1877,6 +1905,20 @@ var keyCodes = {
   'delete': [8, 46]
 };
 
+// KeyboardEvent.key aliases
+var keyNames = {
+  esc: 'Escape',
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
+  'delete': ['Backspace', 'Delete']
+};
+
 // #4868: modifiers that prevent the execution of the listener
 // need to explicitly return null so that we can determine whether to remove
 // the listener for .once
@@ -1980,9 +2022,9 @@ function genHandler (
       code += genModifierCode;
     }
     var handlerCode = isMethodPath
-      ? handler.value + '($event)'
+      ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
-        ? ("(" + (handler.value) + ")($event)")
+        ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
     /* istanbul ignore if */
     if (true && handler.params) {
@@ -2001,12 +2043,15 @@ function genFilterCode (key) {
   if (keyVal) {
     return ("$event.keyCode!==" + keyVal)
   }
-  var code = keyCodes[key];
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
   return (
     "_k($event.keyCode," +
     (JSON.stringify(key)) + "," +
-    (JSON.stringify(code)) + "," +
-    "$event.key)"
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
   )
 }
 
@@ -2137,7 +2182,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -2336,7 +2381,9 @@ Object.defineProperties( VNode.prototype, prototypeAccessors );
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -2344,7 +2391,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -2375,20 +2427,18 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -2414,7 +2464,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -2464,7 +2514,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -2497,6 +2547,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -2543,6 +2596,11 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    (isUndef(target) || isPrimitive(target))
+  ) {
+    warn$1(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -2853,7 +2911,7 @@ function flushCallbacks () {
   }
 }
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -2873,7 +2931,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   
@@ -2884,7 +2942,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 
 /*  */
@@ -2912,7 +2970,7 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-};
+}
 
 /*  */
 
@@ -3706,7 +3764,7 @@ var klass = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData$1
-};
+}
 
 /*  */
 
@@ -3726,12 +3784,14 @@ function transformNode$1 (el, options) {
     );
   }
   if (!dynamic && styleResult) {
+    // $flow-disable-line
     el.staticStyle = styleResult;
   }
   var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
   if (styleBinding) {
     el.styleBinding = styleBinding;
   } else if (dynamic) {
+    // $flow-disable-line
     el.styleBinding = styleResult;
   }
 }
@@ -3752,7 +3812,7 @@ function parseStaticStyle (staticStyle, options) {
   // "width: 200px; height: {{y}}" -> {width: 200, height: y}
   var dynamic = false;
   var styleResult = '';
-  if (staticStyle) {
+  if (typeof staticStyle === 'string') {
     var styleList = staticStyle.trim().split(';').map(function (style) {
       var result = style.trim().split(':');
       if (result.length !== 2) {
@@ -3770,6 +3830,8 @@ function parseStaticStyle (staticStyle, options) {
     if (styleList.length) {
       styleResult = '{' + styleList.join(',') + '}';
     }
+  } else if (isPlainObject(staticStyle)) {
+    styleResult = JSON.stringify(staticStyle) || '';
   }
   return { dynamic: dynamic, styleResult: styleResult }
 }
@@ -3778,7 +3840,7 @@ var style = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$2
-};
+}
 
 /*  */
 
@@ -3809,7 +3871,7 @@ function transformNode$2 (el, options) {
 }
 var props = {
   transformNode: transformNode$2
-};
+}
 
 /*  */
 
@@ -3835,7 +3897,55 @@ var append = {
   staticKeys: ['appendAsTree'],
   preTransformNode: preTransformNode,
   genData: genData$3
-};
+}
+
+/*  */
+
+/**
+ * Map the following syntax to corresponding attrs:
+ *
+ * <recycle-list for="(item, i) in longList" switch="cellType">
+ *   <cell-slot case="A"> ... </cell-slot>
+ *   <cell-slot case="B"> ... </cell-slot>
+ * </recycle-list>
+ */
+
+function preTransformRecycleList (
+  el,
+  options
+) {
+  var exp = getAndRemoveAttr(el, 'for');
+  if (!exp) {
+    if (options.warn) {
+      options.warn("Invalid <recycle-list> syntax: missing \"for\" expression.");
+    }
+    return
+  }
+
+  var res = parseFor(exp);
+  if (!res) {
+    if (options.warn) {
+      options.warn(("Invalid <recycle-list> syntax: " + exp + "."));
+    }
+    return
+  }
+
+  addRawAttr(el, ':list-data', res.for);
+  addRawAttr(el, 'binding-expression', res.for);
+  addRawAttr(el, 'alias', res.alias);
+  if (res.iterator2) {
+    // (item, key, index) for object iteration
+    // is this even supported?
+    addRawAttr(el, 'index', res.iterator2);
+  } else if (res.iterator1) {
+    addRawAttr(el, 'index', res.iterator1);
+  }
+
+  var switchKey = getAndRemoveAttr(el, 'switch');
+  if (switchKey) {
+    addRawAttr(el, 'switch', switchKey);
+  }
+}
 
 /*  */
 
@@ -3872,6 +3982,7 @@ function postTransformComponentRoot (
   if (!el.parent) {
     // component root
     addAttr(el, '@isComponentRoot', 'true');
+    addAttr(el, '@templateId', '_uid');
     addAttr(el, '@componentProps', '$props || {}');
   }
 }
@@ -3900,6 +4011,67 @@ function postTransformText (el, options) {
 
 /*  */
 
+// import { warn } from 'core/util/index'
+
+// this will be preserved during build
+// $flow-disable-line
+var acorn = require('acorn'); // $flow-disable-line
+var walk = require('acorn/dist/walk'); // $flow-disable-line
+var escodegen = require('escodegen');
+
+function nodeToBinding (node) {
+  switch (node.type) {
+    case 'Literal': return node.value
+    case 'Identifier':
+    case 'UnaryExpression':
+    case 'BinaryExpression':
+    case 'LogicalExpression':
+    case 'ConditionalExpression':
+    case 'MemberExpression': return { '@binding': escodegen.generate(node) }
+    case 'ArrayExpression': return node.elements.map(function (_) { return nodeToBinding(_); })
+    case 'ObjectExpression': {
+      var object = {};
+      node.properties.forEach(function (prop) {
+        if (!prop.key || prop.key.type !== 'Identifier') {
+          return
+        }
+        var key = escodegen.generate(prop.key);
+        var value = nodeToBinding(prop.value);
+        if (key && value) {
+          object[key] = value;
+        }
+      });
+      return object
+    }
+    default: {
+      // warn(`Not support ${node.type}: "${escodegen.generate(node)}"`)
+      return ''
+    }
+  }
+}
+
+function generateBinding (exp) {
+  if (exp && typeof exp === 'string') {
+    var ast = null;
+    try {
+      ast = acorn.parse(("(" + exp + ")"));
+    } catch (e) {
+      // warn(`Failed to parse the expression: "${exp}"`)
+      return ''
+    }
+
+    var output = '';
+    walk.simple(ast, {
+      Expression: function Expression (node) {
+        output = nodeToBinding(node);
+      }
+    });
+    return output
+  }
+}
+
+/*  */
+
 function parseAttrName (name) {
   return camelize(name.replace(bindRE, ''))
 }
@@ -3908,9 +4080,7 @@ function preTransformVBind (el, options) {
   for (var attr in el.attrsMap) {
     if (bindRE.test(attr)) {
       var name = parseAttrName(attr);
-      var value = {
-        '@binding': getAndRemoveAttr(el, attr)
-      };
+      var value = generateBinding(getAndRemoveAttr(el, attr));
       delete el.attrsMap[attr];
       addRawAttr(el, name, value);
     }
@@ -3928,11 +4098,23 @@ function hasConditionDirective (el) {
   return false
 }
 
-function getPrevMatch (el) {
+function getPreviousConditions (el) {
+  var conditions = [];
   if (el.parent && el.parent.children) {
-    var prev = el.parent.children[el.parent.children.length - 1];
-    return prev.attrsMap['[[match]]']
+    for (var c = 0, n = el.parent.children.length; c < n; ++c) {
+      // $flow-disable-line
+      var ifConditions = el.parent.children[c].ifConditions;
+      if (ifConditions) {
+        for (var i = 0, l = ifConditions.length; i < l; ++i) {
+          var condition = ifConditions[i];
+          if (condition && condition.exp) {
+            conditions.push(condition.exp);
+          }
+        }
+      }
+    }
   }
+  return conditions
 }
 
 function preTransformVIf (el, options) {
@@ -3945,9 +4127,12 @@ function preTransformVIf (el, options) {
     getAndRemoveAttr(el, 'v-else', true);
     if (ifExp) {
       exp = ifExp;
+      addIfCondition(el, { exp: ifExp, block: el });
     } else {
-      var prevMatch = getPrevMatch(el);
-      if (prevMatch) {
+      elseifExp && addIfCondition(el, { exp: elseifExp, block: el });
+      var prevConditions = getPreviousConditions(el);
+      if (prevConditions.length) {
+        var prevMatch = prevConditions.join(' || ');
         exp = elseifExp
           ? ("!(" + prevMatch + ") && (" + elseifExp + ")") // v-else-if
           : ("!(" + prevMatch + ")"); // v-else
@@ -4022,6 +4207,24 @@ function postTransformVOn (el, options) {
 
 /*  */
 
+function containVOnce (el) {
+  for (var attr in el.attrsMap) {
+    if (/^v\-once$/i.test(attr)) {
+      return true
+    }
+  }
+  return false
+}
+
+function preTransformVOnce (el, options) {
+  if (containVOnce(el)) {
+    getAndRemoveAttr(el, 'v-once', true);
+    addRawAttr(el, '[[once]]', true);
+  }
+}
+
+/*  */
+
 var currentRecycleList = null;
 
 function shouldCompile (el, options) {
@@ -4031,12 +4234,14 @@ function shouldCompile (el, options) {
 
 function preTransformNode$1 (el, options) {
   if (el.tag === 'recycle-list') {
+    preTransformRecycleList(el, options);
     currentRecycleList = el;
   }
   if (shouldCompile(el, options)) {
     preTransformVBind(el, options);
     preTransformVIf(el, options); // also v-else-if and v-else
     preTransformVFor(el, options);
+    preTransformVOnce(el, options);
   }
 }
 
@@ -4067,7 +4272,7 @@ var recycleList = {
   preTransformNode: preTransformNode$1,
   transformNode: transformNode$3,
   postTransformNode: postTransformNode
-};
+}
 
 var modules = [
   recycleList,
@@ -4075,7 +4280,7 @@ var modules = [
   style,
   props,
   append
-];
+]
 
 /*  */
 
@@ -4114,7 +4319,7 @@ function genDefaultModel (
 
 var directives = {
   model: model
-};
+}
 
 /*  */
 
diff --git a/packages/weex-vue-framework/factory.js b/packages/weex-vue-framework/factory.js
index 1c6974d4951..8bcfb675ba9 100644
--- a/packages/weex-vue-framework/factory.js
+++ b/packages/weex-vue-framework/factory.js
@@ -31,6 +31,8 @@ function isPrimitive (value) {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
     typeof value === 'boolean'
   )
 }
@@ -176,9 +178,15 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind, faster than native
+ * Simple bind polyfill for environments that do not support it... e.g.
+ * PhantomJS 1.x. Technically we don't need this anymore since native bind is
+ * now more performant in most browsers, but removing it would be breaking for
+ * code that was able to run in PhantomJS 1.x, so this must be kept for
+ * backwards compatibility.
  */
-function bind (fn, ctx) {
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
   function boundFn (a) {
     var l = arguments.length;
     return l
@@ -187,11 +195,19 @@ function bind (fn, ctx) {
         : fn.call(ctx, a)
       : fn.call(ctx)
   }
-  // record original fn length
+
   boundFn._length = fn.length;
   return boundFn
 }
 
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
 /**
  * Convert an Array-like object to a real Array.
  */
@@ -417,7 +433,7 @@ var config = ({
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-});
+})
 
 /*  */
 
@@ -461,7 +477,6 @@ function parsePath (path) {
 
 /*  */
 
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -500,7 +515,7 @@ var _isServer;
 var isServerRendering = function () {
   if (_isServer === undefined) {
     /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
       _isServer = global['process'].env.VUE_ENV === 'server';
@@ -645,14 +660,14 @@ if (process.env.NODE_ENV !== 'production') {
 /*  */
 
 
-var uid$1 = 0;
+var uid = 0;
 
 /**
  * A dep is an observable that can have multiple
  * directives subscribing to it.
  */
 var Dep = function Dep () {
-  this.id = uid$1++;
+  this.id = uid++;
   this.subs = [];
 };
 
@@ -757,8 +772,7 @@ function createTextVNode (val) {
 // used for static nodes and slot nodes because they may be reused across
 // multiple renders, cloning them avoids errors when DOM manipulations rely
 // on their elm reference.
-function cloneVNode (vnode, deep) {
-  var componentOptions = vnode.componentOptions;
+function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
@@ -766,7 +780,7 @@ function cloneVNode (vnode, deep) {
     vnode.text,
     vnode.elm,
     vnode.context,
-    componentOptions,
+    vnode.componentOptions,
     vnode.asyncFactory
   );
   cloned.ns = vnode.ns;
@@ -777,33 +791,18 @@ function cloneVNode (vnode, deep) {
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
   cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
   return cloned
 }
 
-function cloneVNodes (vnodes, deep) {
-  var len = vnodes.length;
-  var res = new Array(len);
-  for (var i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
  */
 
 var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);[
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
   'push',
   'pop',
   'shift',
@@ -811,7 +810,12 @@ var arrayMethods = Object.create(arrayProto);[
   'splice',
   'sort',
   'reverse'
-].forEach(function (method) {
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
   // cache original method
   var original = arrayProto[method];
   def(arrayMethods, method, function mutator () {
@@ -842,20 +846,20 @@ var arrayMethods = Object.create(arrayProto);[
 var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
 /**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
  */
-var observerState = {
-  shouldConvert: true
-};
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
 
 /**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
  * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
+ * collect dependencies and dispatch updates.
  */
 var Observer = function Observer (value) {
   this.value = value;
@@ -881,7 +885,7 @@ var Observer = function Observer (value) {
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i], obj[keys[i]]);
+    defineReactive(obj, keys[i]);
   }
 };
 
@@ -931,7 +935,7 @@ function observe (value, asRootData) {
   if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
     ob = value.__ob__;
   } else if (
-    observerState.shouldConvert &&
+    shouldObserve &&
     !isServerRendering() &&
     (Array.isArray(value) || isPlainObject(value)) &&
     Object.isExtensible(value) &&
@@ -964,6 +968,9 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
+  if (!getter && arguments.length === 2) {
+    val = obj[key];
+  }
   var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
@@ -1010,6 +1017,11 @@ function defineReactive (
  * already exist.
  */
 function set (target, key, val) {
+  if (process.env.NODE_ENV !== 'production' &&
+    (isUndef(target) || isPrimitive(target))
+  ) {
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.length = Math.max(target.length, key);
     target.splice(key, 1, val);
@@ -1040,6 +1052,11 @@ function set (target, key, val) {
  * Delete a property and trigger change if necessary.
  */
 function del (target, key) {
+  if (process.env.NODE_ENV !== 'production' &&
+    (isUndef(target) || isPrimitive(target))
+  ) {
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+  }
   if (Array.isArray(target) && isValidArrayIndex(key)) {
     target.splice(key, 1);
     return
@@ -1350,9 +1367,6 @@ function normalizeProps (options, vm) {
     for (var key in props) {
       val = props[key];
       name = camelize(key);
-      if (process.env.NODE_ENV !== 'production' && isPlainObject(val)) {
-        validatePropObject(name, val, vm);
-      }
       res[name] = isPlainObject(val)
         ? val
         : { type: val };
@@ -1367,26 +1381,6 @@ function normalizeProps (options, vm) {
   options.props = res;
 }
 
-/**
- * Validate whether a prop object keys are valid.
- */
-var propOptionsRE = /^(type|default|required|validator)$/;
-
-function validatePropObject (
-  propName,
-  prop,
-  vm
-) {
-  for (var key in prop) {
-    if (!propOptionsRE.test(key)) {
-      warn(
-        ("Invalid key \"" + key + "\" in validation rules object for prop \"" + propName + "\"."),
-        vm
-      );
-    }
-  }
-}
-
 /**
  * Normalize all injections into Object-based format
  */
@@ -1529,12 +1523,18 @@ function validateProp (
   var prop = propOptions[key];
   var absent = !hasOwn(propsData, key);
   var value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
     if (absent && !hasOwn(prop, 'default')) {
       value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
     }
   }
   // check default value
@@ -1542,10 +1542,10 @@ function validateProp (
     value = getPropDefaultValue(vm, prop, key);
     // since the default value is a fresh copy,
     // make sure to observe it.
-    var prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
     observe(value);
-    observerState.shouldConvert = prevShouldConvert;
+    toggleObserving(prevShouldObserve);
   }
   if (
     process.env.NODE_ENV !== 'production' &&
@@ -1678,17 +1678,20 @@ function getType (fn) {
   return match ? match[1] : ''
 }
 
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
   }
-  for (var i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
     }
   }
-  /* istanbul ignore next */
-  return false
+  return -1
 }
 
 /*  */
@@ -1751,19 +1754,19 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
 // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
 // when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
+// Here we use microtask by default, but expose a way to force (macro) task when
 // needed (e.g. in event handlers attached by v-on).
 var microTimerFunc;
 var macroTimerFunc;
 var useMacroTask = false;
 
-// Determine (macro) Task defer implementation.
+// Determine (macro) task defer implementation.
 // Technically setImmediate should be the ideal choice, but it's only available
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
@@ -1790,7 +1793,7 @@ if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   };
 }
 
-// Determine MicroTask defer implementation.
+// Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
@@ -1810,7 +1813,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 
 /**
  * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
+ * the changes are queued using a (macro) task instead of a microtask.
  */
 
 
@@ -1869,8 +1872,7 @@ if (process.env.NODE_ENV !== 'production') {
   };
 
   var hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
+    typeof Proxy !== 'undefined' && isNative(Proxy);
 
   if (hasProxy) {
     var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
@@ -1938,7 +1940,7 @@ function traverse (val) {
 function _traverse (val, seen) {
   var i, keys;
   var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
     return
   }
   if (val.__ob__) {
@@ -2825,29 +2827,30 @@ function updateChildComponent (
   // update $attrs and $listeners hash
   // these are also reactive so they may trigger child update if the child
   // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
   vm.$listeners = listeners || emptyObject;
 
   // update props
   if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     var props = vm._props;
     var propKeys = vm.$options._propKeys || [];
     for (var i = 0; i < propKeys.length; i++) {
       var key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-    observerState.shouldConvert = true;
+    toggleObserving(true);
     // keep a copy of raw propsData
     vm.$options.propsData = propsData;
   }
 
   // update listeners
-  if (listeners) {
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
   // resolve slots + force update if has children
   if (hasChildren) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
@@ -2901,6 +2904,8 @@ function deactivateChildComponent (vm, direct) {
 }
 
 function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
   var handlers = vm.$options[hook];
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
@@ -2914,6 +2919,7 @@ function callHook (vm, hook) {
   if (vm._hasHookEvent) {
     vm.$emit('hook:' + hook);
   }
+  popTarget();
 }
 
 /*  */
@@ -3058,7 +3064,7 @@ function queueWatcher (watcher) {
 
 /*  */
 
-var uid$2 = 0;
+var uid$1 = 0;
 
 /**
  * A watcher parses an expression, collects dependencies,
@@ -3087,7 +3093,7 @@ var Watcher = function Watcher (
     this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
-  this.id = ++uid$2; // uid for batching
+  this.id = ++uid$1; // uid for batching
   this.active = true;
   this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
@@ -3290,7 +3296,6 @@ function proxy (target, sourceKey, key) {
 
 function initState (vm) {
   vm._watchers = [];
-  vm._inlineComputed = null;
   var opts = vm.$options;
   if (opts.props) { initProps(vm, opts.props); }
   if (opts.methods) { initMethods(vm, opts.methods); }
@@ -3313,7 +3318,9 @@ function initProps (vm, propsOptions) {
   var keys = vm.$options._propKeys = [];
   var isRoot = !vm.$parent;
   // root instance props should be converted
-  observerState.shouldConvert = isRoot;
+  if (!isRoot) {
+    toggleObserving(false);
+  }
   var loop = function ( key ) {
     keys.push(key);
     var value = validateProp(key, propsOptions, propsData, vm);
@@ -3350,7 +3357,7 @@ function initProps (vm, propsOptions) {
   };
 
   for (var key in propsOptions) loop( key );
-  observerState.shouldConvert = true;
+  toggleObserving(true);
 }
 
 function initData (vm) {
@@ -3396,11 +3403,15 @@ function initData (vm) {
 }
 
 function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
   try {
     return data.call(vm, vm)
   } catch (e) {
     handleError(e, vm, "data()");
     return {}
+  } finally {
+    popTarget();
   }
 }
 
@@ -3538,7 +3549,7 @@ function initWatch (vm, watch) {
 
 function createWatcher (
   vm,
-  keyOrFn,
+  expOrFn,
   handler,
   options
 ) {
@@ -3549,7 +3560,7 @@ function createWatcher (
   if (typeof handler === 'string') {
     handler = vm[handler];
   }
-  return vm.$watch(keyOrFn, handler, options)
+  return vm.$watch(expOrFn, handler, options)
 }
 
 function stateMixin (Vue) {
@@ -3613,7 +3624,7 @@ function initProvide (vm) {
 function initInjections (vm) {
   var result = resolveInject(vm.$options.inject, vm);
   if (result) {
-    observerState.shouldConvert = false;
+    toggleObserving(false);
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
@@ -3629,7 +3640,7 @@ function initInjections (vm) {
         defineReactive(vm, key, result[key]);
       }
     });
-    observerState.shouldConvert = true;
+    toggleObserving(true);
   }
 }
 
@@ -3649,7 +3660,7 @@ function resolveInject (inject, vm) {
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
-        if (source._provided && provideKey in source._provided) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
           result[key] = source._provided[provideKey];
           break
         }
@@ -3764,6 +3775,14 @@ function resolveFilter (id) {
 
 /*  */
 
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
 /**
  * Runtime helper for checking keyCodes from config.
  * exposed as Vue.prototype._k
@@ -3772,16 +3791,15 @@ function resolveFilter (id) {
 function checkKeyCodes (
   eventKeyCode,
   key,
-  builtInAlias,
-  eventKeyName
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
 ) {
-  var keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
   } else if (eventKeyName) {
     return hyphenate(eventKeyName) !== key
   }
@@ -3853,11 +3871,9 @@ function renderStatic (
   var cached = this._staticTrees || (this._staticTrees = []);
   var tree = cached[index];
   // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
+  // we can reuse the same tree.
   if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
+    return tree
   }
   // otherwise, render a fresh tree.
   tree = cached[index] = this.$options.staticRenderFns[index].call(
@@ -3927,32 +3943,6 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
-/**
- * This runtime helper creates an inline computed property for component
- * props that contain object or array literals. The caching ensures the same
- * object/array is returned unless the value has indeed changed, thus avoiding
- * the child component to always re-render when comparing props values.
- *
- * Installed to the instance as _a, requires special handling in parser that
- * transforms the following
- *   <foo :bar="{ a: 1 }"/>
- * to:
- *   <foo :bar="_a(0, function(){return { a: 1 }})"
- */
-function createInlineComputed (id, getter) {
-  var vm = this;
-  var watchers = vm._inlineComputed || (vm._inlineComputed = {});
-  var cached$$1 = watchers[id];
-  if (cached$$1) {
-    return cached$$1.value
-  } else {
-    watchers[id] = new Watcher(vm, getter, noop, { sync: true });
-    return watchers[id].value
-  }
-}
-
-/*  */
-
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -3969,7 +3959,6 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
-  target._a = createInlineComputed;
 }
 
 /*  */
@@ -3982,6 +3971,24 @@ function FunctionalRenderContext (
   Ctor
 ) {
   var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
   this.data = data;
   this.props = props;
   this.children = children;
@@ -3990,12 +3997,6 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm = Object.create(parent);
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
@@ -4008,7 +4009,7 @@ function FunctionalRenderContext (
   if (options._scopeId) {
     this._c = function (a, b, c, d) {
       var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
+      if (vnode && !Array.isArray(vnode)) {
         vnode.fnScopeId = options._scopeId;
         vnode.fnContext = parent;
       }
@@ -4051,14 +4052,28 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    vnode.fnContext = contextVm;
-    vnode.fnOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
     }
+    return res
   }
+}
 
-  return vnode
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
 }
 
 function mergeProps (to, from) {
@@ -4110,7 +4125,7 @@ function updateComponentData (
 
 // https://github.com/Hanks10100/weex-native-directive/tree/master/component
 
-var uid$3 = 0;
+var uid$2 = 0;
 
 // override Vue.prototype._init
 function initVirtualComponent (options) {
@@ -4120,7 +4135,7 @@ function initVirtualComponent (options) {
   var componentId = options.componentId;
 
   // virtual component uid
-  vm._uid = "virtual-component-" + (uid$3++);
+  vm._uid = "virtual-component-" + (uid$2++);
 
   // a flag to avoid this being observed
   vm._isVue = true;
@@ -4264,7 +4279,7 @@ function renderRecyclableComponentTemplate (vnode) {
 
 /*  */
 
-// hooks to be invoked on component VNodes during patch
+// inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
   init: function init (
     vnode,
@@ -4272,7 +4287,15 @@ var componentVNodeHooks = {
     parentElm,
     refElm
   ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
         activeInstance,
@@ -4280,10 +4303,6 @@ var componentVNodeHooks = {
         refElm
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
     }
   },
 
@@ -4418,8 +4437,8 @@ function createComponent (
     }
   }
 
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
   // return a placeholder vnode
   var name = Ctor.options.name || tag;
@@ -4463,22 +4482,11 @@ function createComponentInstanceForVnode (
   return new vnode.componentOptions.Ctor(options)
 }
 
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    var fromParent = data.hook[key];
-    var ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
+    hooks[key] = componentVNodeHooks[key];
   }
 }
 
@@ -4595,8 +4603,11 @@ function _createElement (
     // direct component options / constructor
     vnode = createComponent(tag, data, context, children);
   }
-  if (isDef(vnode)) {
-    if (ns) { applyNS(vnode, ns); }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
     return vnode
   } else {
     return createEmptyVNode()
@@ -4613,13 +4624,26 @@ function applyNS (vnode, ns, force) {
   if (isDef(vnode.children)) {
     for (var i = 0, l = vnode.children.length; i < l; i++) {
       var child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
         applyNS(child, ns, force);
       }
     }
   }
 }
 
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
 /*  */
 
 function initRender (vm) {
@@ -4671,20 +4695,17 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
+    // reset _rendered flag on slots for duplicate slot check
+    if (process.env.NODE_ENV !== 'production') {
       for (var key in vm.$slots) {
-        var slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
+        // $flow-disable-line
+        vm.$slots[key]._rendered = false;
       }
     }
 
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
 
     // set parent vnode. this allows render functions to have access
     // to the data on the placeholder node.
@@ -4732,13 +4753,13 @@ function renderMixin (Vue) {
 
 /*  */
 
-var uid = 0;
+var uid$3 = 0;
 
 function initMixin (Vue) {
   Vue.prototype._init = function (options) {
     var vm = this;
     // a uid
-    vm._uid = uid++;
+    vm._uid = uid$3++;
 
     var startTag, endTag;
     /* istanbul ignore if */
@@ -4871,20 +4892,20 @@ function dedupe (latest, extended, sealed) {
   }
 }
 
-function Vue$2 (options) {
+function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue$2)
+    !(this instanceof Vue)
   ) {
     warn('Vue is a constructor and should be called with the `new` keyword');
   }
   this._init(options);
 }
 
-initMixin(Vue$2);
-stateMixin(Vue$2);
-eventsMixin(Vue$2);
-lifecycleMixin(Vue$2);
-renderMixin(Vue$2);
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
 
 /*  */
 
@@ -5113,13 +5134,15 @@ var KeepAlive = {
     }
   },
 
-  watch: {
-    include: function include (val) {
-      pruneCache(this, function (name) { return matches(val, name); });
-    },
-    exclude: function exclude (val) {
-      pruneCache(this, function (name) { return !matches(val, name); });
-    }
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
   },
 
   render: function render () {
@@ -5167,11 +5190,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-};
+}
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-};
+}
 
 /*  */
 
@@ -5219,20 +5242,25 @@ function initGlobalAPI (Vue) {
   initAssetRegisters(Vue);
 }
 
-initGlobalAPI(Vue$2);
+initGlobalAPI(Vue);
 
-Object.defineProperty(Vue$2.prototype, '$isServer', {
+Object.defineProperty(Vue.prototype, '$isServer', {
   get: isServerRendering
 });
 
-Object.defineProperty(Vue$2.prototype, '$ssrContext', {
+Object.defineProperty(Vue.prototype, '$ssrContext', {
   get: function get () {
     /* istanbul ignore next */
     return this.$vnode && this.$vnode.ssrContext
   }
 });
 
-Vue$2.version = '2.5.11';
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.15';
 
 var latestNodeId = 1;
 
@@ -5244,8 +5272,8 @@ function TextNode (text) {
   this.text = text;
 }
 
-/* globals document */
-// document is injected by weex factory wrapper
+/*  */
+
 
 var namespaceMap = {};
 
@@ -5265,7 +5293,11 @@ function createComment (text) {
   return document.createComment(text)
 }
 
-function insertBefore (node, target, before) {
+function insertBefore (
+  node,
+  target,
+  before
+) {
   if (target.nodeType === 3) {
     if (node.type === 'text') {
       node.setAttr('value', target.text);
@@ -5317,13 +5349,19 @@ function tagName (node) {
 }
 
 function setTextContent (node, text) {
-  node.parentNode.setAttr('value', text);
+  if (node.parentNode) {
+    node.parentNode.setAttr('value', text);
+  }
 }
 
 function setAttribute (node, key, val) {
   node.setAttr(key, val);
 }
 
+function setStyleScope (node, scopeId) {
+  node.setAttr('@styleScope', scopeId);
+}
+
 
 var nodeOps = Object.freeze({
 	namespaceMap: namespaceMap,
@@ -5338,7 +5376,8 @@ var nodeOps = Object.freeze({
 	nextSibling: nextSibling,
 	tagName: tagName,
 	setTextContent: setTextContent,
-	setAttribute: setAttribute
+	setAttribute: setAttribute,
+	setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5356,11 +5395,11 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-};
+}
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
-  if (!key) { return }
+  if (!isDef(key)) { return }
 
   var vm = vnode.context;
   var ref = vnode.componentInstance || vnode.elm;
@@ -5528,7 +5567,25 @@ function createPatchFunction (backend) {
   }
 
   var creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     vnode.isRootInsert = !nested; // for transition enter check
     if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
       return
@@ -5551,6 +5608,7 @@ function createPatchFunction (backend) {
           );
         }
       }
+
       vnode.elm = vnode.ns
         ? nodeOps.createElementNS(vnode.ns, tag)
         : nodeOps.createElement(tag, vnode);
@@ -5668,10 +5726,10 @@ function createPatchFunction (backend) {
         checkDuplicateKeys(children);
       }
       for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
       }
     } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
   }
 
@@ -5699,12 +5757,12 @@ function createPatchFunction (backend) {
   function setScope (vnode) {
     var i;
     if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     } else {
       var ancestor = vnode;
       while (ancestor) {
         if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
+          nodeOps.setStyleScope(vnode.elm, i);
         }
         ancestor = ancestor.parent;
       }
@@ -5715,13 +5773,13 @@ function createPatchFunction (backend) {
       i !== vnode.fnContext &&
       isDef(i = i.$options._scopeId)
     ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
+      nodeOps.setStyleScope(vnode.elm, i);
     }
   }
 
   function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
     for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
     }
   }
 
@@ -5831,7 +5889,7 @@ function createPatchFunction (backend) {
           ? oldKeyToIdx[newStartVnode.key]
           : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
         if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
@@ -5840,7 +5898,7 @@ function createPatchFunction (backend) {
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
             // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
           }
         }
         newStartVnode = newCh[++newStartIdx];
@@ -6178,7 +6236,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-};
+}
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6289,7 +6347,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-];
+]
 
 /*  */
 
@@ -6332,7 +6390,7 @@ function updateAttrs (oldVnode, vnode) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-};
+}
 
 /*  */
 
@@ -6369,12 +6427,16 @@ function updateClass (oldVnode, vnode) {
     classList.push.apply(classList, data.class);
   }
 
-  var style = getStyle(oldClassList, classList, ctx);
-  if (typeof el.setStyles === 'function') {
-    el.setStyles(style);
+  if (typeof el.setClassList === 'function') {
+    el.setClassList(classList);
   } else {
-    for (var key in style) {
-      el.setStyle(key, style[key]);
+    var style = getStyle(oldClassList, classList, ctx);
+    if (typeof el.setStyles === 'function') {
+      el.setStyles(style);
+    } else {
+      for (var key in style) {
+        el.setStyle(key, style[key]);
+      }
     }
   }
 }
@@ -6402,7 +6464,7 @@ function getStyle (oldClassList, classList, ctx) {
 var klass = {
   create: updateClass,
   update: updateClass
-};
+}
 
 /*  */
 
@@ -6458,7 +6520,7 @@ function updateDOMListeners (oldVnode, vnode) {
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-};
+}
 
 /*  */
 
@@ -6541,7 +6603,7 @@ function toObject$1 (arr) {
 var style = {
   create: createStyle,
   update: updateStyle
-};
+}
 
 /*  */
 
@@ -6617,7 +6679,7 @@ var transition = {
   create: enter,
   activate: enter,
   remove: leave
-};
+}
 
 function enter (_, vnode) {
   var el = vnode.elm;
@@ -6881,7 +6943,7 @@ var platformModules = [
   events,
   style,
   transition
-];
+]
 
 /*  */
 
@@ -6896,7 +6958,7 @@ var patch = createPatchFunction({
 });
 
 var platformDirectives = {
-};
+}
 
 /*  */
 
@@ -6981,7 +7043,7 @@ var Richtext = {
       }
     })
   }
-};
+}
 
 /*  */
 
@@ -7053,7 +7115,7 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
-var Transition$1 = {
+var Transition = {
   name: 'transition',
   props: transitionProps,
   abstract: true,
@@ -7170,7 +7232,7 @@ var Transition$1 = {
 
     return rawChild
   }
-};
+}
 
 // reuse same transition component logic from web
 
@@ -7254,7 +7316,7 @@ var TransitionGroup = {
       this._vnode,
       this.kept,
       false, // hydrating
-      true // removeOnly (!important avoids unnecessary moves)
+      true // removeOnly (!important, avoids unnecessary moves)
     );
     this._vnode = this.kept;
   },
@@ -7307,7 +7369,7 @@ var TransitionGroup = {
       return stylesheet['@TRANSITION'] && stylesheet['@TRANSITION'][moveClass]
     }
   }
-};
+}
 
 // function callPendingCbs (c) {
 //   /* istanbul ignore if */
@@ -7322,9 +7384,9 @@ var TransitionGroup = {
 
 var platformComponents = {
   Richtext: Richtext,
-  Transition: Transition$1,
+  Transition: Transition,
   TransitionGroup: TransitionGroup
-};
+}
 
 /*  */
 
@@ -7380,20 +7442,20 @@ function query (el, document) {
 /*  */
 
 // install platform specific utils
-Vue$2.config.mustUseProp = mustUseProp;
-Vue$2.config.isReservedTag = isReservedTag$1;
-Vue$2.config.isRuntimeComponent = isRuntimeComponent;
-Vue$2.config.isUnknownElement = isUnknownElement$1;
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag$1;
+Vue.config.isRuntimeComponent = isRuntimeComponent;
+Vue.config.isUnknownElement = isUnknownElement$1;
 
 // install platform runtime directives and components
-Vue$2.options.directives = platformDirectives;
-Vue$2.options.components = platformComponents;
+Vue.options.directives = platformDirectives;
+Vue.options.components = platformComponents;
 
 // install platform patch function
-Vue$2.prototype.__patch__ = patch;
+Vue.prototype.__patch__ = patch;
 
 // wrap mount
-Vue$2.prototype.$mount = function (
+Vue.prototype.$mount = function (
   el,
   hydrating
 ) {
@@ -7407,6 +7469,6 @@ Vue$2.prototype.$mount = function (
 // this entry is built and wrapped with a factory function
 // used to generate a fresh copy of Vue for every Weex instance.
 
-exports.Vue = Vue$2;
+exports.Vue = Vue;
 
 }
diff --git a/packages/weex-vue-framework/index.js b/packages/weex-vue-framework/index.js
index cc9ff370f2e..487c97be7ef 100644
--- a/packages/weex-vue-framework/index.js
+++ b/packages/weex-vue-framework/index.js
@@ -2,134 +2,94 @@
 
 Object.defineProperty(exports, '__esModule', { value: true });
 
+/*  */
+
 // this will be preserved during build
+// $flow-disable-line
 var VueFactory = require('./factory');
 
-var instances = {};
-
-/**
- * Prepare framework config.
- * Nothing need to do actually, just an interface provided to weex runtime.
- */
-function init () {}
-
-/**
- * Reset framework config and clear all registrations.
- */
-function reset () {
-  clear(instances);
-}
+var instanceOptions = {};
 
 /**
- * Delete all keys of an object.
- * @param {object} obj
+ * Create instance context.
  */
-function clear (obj) {
-  for (var key in obj) {
-    delete obj[key];
-  }
-}
-
-/**
- * Create an instance with id, code, config and external data.
- * @param {string} instanceId
- * @param {string} appCode
- * @param {object} config
- * @param {object} data
- * @param {object} env { info, config, services }
- */
-function createInstance (
+function createInstanceContext (
   instanceId,
-  appCode,
-  config,
-  data,
-  env
+  runtimeContext,
+  data
 ) {
-  if ( appCode === void 0 ) appCode = '';
-  if ( config === void 0 ) config = {};
-  if ( env === void 0 ) env = {};
-
-  var weex = env.weex;
-  var document = weex.document;
-  var instance = instances[instanceId] = {
-    instanceId: instanceId, config: config, data: data,
-    document: document
+  if ( data === void 0 ) data = {};
+
+  var weex = runtimeContext.weex;
+  var instance = instanceOptions[instanceId] = {
+    instanceId: instanceId,
+    config: weex.config,
+    document: weex.document,
+    data: data
   };
 
-  var timerAPIs = getInstanceTimer(instanceId, weex.requireModule);
-
   // Each instance has a independent `Vue` module instance
   var Vue = instance.Vue = createVueModuleInstance(instanceId, weex);
 
-  // The function which create a closure the JS Bundle will run in.
-  // It will declare some instance variables like `Vue`, HTML5 Timer APIs etc.
-  var instanceVars = Object.assign({
-    Vue: Vue,
-    weex: weex
-  }, timerAPIs, env.services);
-
-  appCode = "(function(global){ \n" + appCode + "\n })(Object.create(this))";
-  callFunction(instanceVars, appCode);
+  // DEPRECATED
+  var timerAPIs = getInstanceTimer(instanceId, weex.requireModule);
 
-  return instance
+  var instanceContext = Object.assign({ Vue: Vue }, timerAPIs);
+  Object.freeze(instanceContext);
+  return instanceContext
 }
 
 /**
  * Destroy an instance with id. It will make sure all memory of
  * this instance released and no more leaks.
- * @param {string} instanceId
  */
 function destroyInstance (instanceId) {
-  var instance = instances[instanceId];
+  var instance = instanceOptions[instanceId];
   if (instance && instance.app instanceof instance.Vue) {
-    instance.document.destroy();
-    instance.app.$destroy();
+    try {
+      instance.app.$destroy();
+      instance.document.destroy();
+    } catch (e) {}
     delete instance.document;
     delete instance.app;
   }
-  delete instances[instanceId];
+  delete instanceOptions[instanceId];
 }
 
 /**
  * Refresh an instance with id and new top-level component data.
  * It will use `Vue.set` on all keys of the new data. So it's better
  * define all possible meaningful keys when instance created.
- * @param {string} instanceId
- * @param {object} data
  */
-function refreshInstance (instanceId, data) {
-  var instance = instances[instanceId];
+function refreshInstance (
+  instanceId,
+  data
+) {
+  var instance = instanceOptions[instanceId];
   if (!instance || !(instance.app instanceof instance.Vue)) {
     return new Error(("refreshInstance: instance " + instanceId + " not found!"))
   }
-  for (var key in data) {
-    instance.Vue.set(instance.app, key, data[key]);
+  if (instance.Vue && instance.Vue.set) {
+    for (var key in data) {
+      instance.Vue.set(instance.app, key, data[key]);
+    }
   }
   // Finally `refreshFinish` signal needed.
   instance.document.taskCenter.send('dom', { action: 'refreshFinish' }, []);
 }
 
-/**
- * Get the JSON object of the root element.
- * @param {string} instanceId
- */
-function getRoot (instanceId) {
-  var instance = instances[instanceId];
-  if (!instance || !(instance.app instanceof instance.Vue)) {
-    return new Error(("getRoot: instance " + instanceId + " not found!"))
-  }
-  return instance.app.$el.toJSON()
-}
-
 /**
  * Create a fresh instance of Vue for each Weex instance.
  */
-function createVueModuleInstance (instanceId, weex) {
+function createVueModuleInstance (
+  instanceId,
+  weex
+) {
   var exports = {};
   VueFactory(exports, weex.document);
   var Vue = exports.Vue;
 
-  var instance = instances[instanceId];
+  var instance = instanceOptions[instanceId];
 
   // patch reserved tag detection to account for dynamically registered
   // components
@@ -169,7 +129,7 @@ function createVueModuleInstance (instanceId, weex) {
     mounted: function mounted () {
       var options = this.$options;
       // root component (vm)
-      if (options.el && weex.document) {
+      if (options.el && weex.document && instance.app === this) {
         try {
           // Send "createFinish" signal to native.
           weex.document.taskCenter.send('dom', { action: 'createFinish' }, []);
@@ -193,16 +153,17 @@ function createVueModuleInstance (instanceId, weex) {
 }
 
 /**
+ * DEPRECATED
  * Generate HTML5 Timer APIs. An important point is that the callback
  * will be converted into callback id when sent to native. So the
  * framework can make sure no side effect of the callback happened after
  * an instance destroyed.
- * @param  {[type]} instanceId   [description]
- * @param  {[type]} moduleGetter [description]
- * @return {[type]}              [description]
  */
-function getInstanceTimer (instanceId, moduleGetter) {
-  var instance = instances[instanceId];
+function getInstanceTimer (
+  instanceId,
+  moduleGetter
+) {
+  var instance = instanceOptions[instanceId];
   var timer = moduleGetter('timer');
   var timerAPIs = {
     setTimeout: function () {
@@ -237,28 +198,6 @@ function getInstanceTimer (instanceId, moduleGetter) {
   return timerAPIs
 }
 
-/**
- * Call a new function body with some global objects.
- * @param  {object} globalObjects
- * @param  {string} code
- * @return {any}
- */
-function callFunction (globalObjects, body) {
-  var globalKeys = [];
-  var globalValues = [];
-  for (var key in globalObjects) {
-    globalKeys.push(key);
-    globalValues.push(globalObjects[key]);
-  }
-  globalKeys.push(body);
-
-  var result = new (Function.prototype.bind.apply( Function, [ null ].concat( globalKeys) ));
-  return result.apply(void 0, globalValues)
-}
-
-exports.init = init;
-exports.reset = reset;
-exports.createInstance = createInstance;
+exports.createInstanceContext = createInstanceContext;
 exports.destroyInstance = destroyInstance;
 exports.refreshInstance = refreshInstance;
-exports.getRoot = getRoot;

From 25342194016dc3bcc81cb3e8e229b0fb7ba1d1d6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 13 Mar 2018 18:14:20 -0400
Subject: [PATCH 450/911] build: release 2.5.16

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index a78d86ef8e1..63da803a6e1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.15",
+  "version": "2.5.16",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 17d7a5f6bd28dda247ddeb02ed66ebc92182ded9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 20 Mar 2018 10:26:32 -0400
Subject: [PATCH 451/911] chore: update sponsors

---
 BACKERS.md |  5 +++++
 README.md  | 45 +++++++++++++++++++++++++--------------------
 2 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index a1a27173e87..0ee46ffcc00 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -149,6 +149,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://teamextension.io/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index c89a48c66d8..8f137f42c93 100644
--- a/README.md
+++ b/README.md
@@ -29,17 +29,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://stdlib.com" target="_blank" rel="noopener noreferrer">
+        <a href="https://stdlib.com" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank" rel="noopener noreferrer">
+        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
           <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://xiaozhuanlan.com" target="_blank" rel="noopener noreferrer">
+        <a href="https://xiaozhuanlan.com" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
         </a>
       </td>
@@ -57,17 +57,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="http://tooltwist.com/" target="_blank" rel="noopener noreferrer">
+        <a href="http://tooltwist.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank" rel="noopener noreferrer">
+        <a href="https://vueschool.io/?utm_source=Vuejs.org&utm_medium=Banner&utm_campaign=Sponsored%20Banner&utm_content=V1" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank" rel="noopener noreferrer">
+        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
         </a>
       </td>
@@ -83,79 +83,84 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://laravel.com" target="_blank" rel="noopener noreferrer">
+        <a href="https://laravel.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://htmlburger.com" target="_blank" rel="noopener noreferrer">
+        <a href="https://htmlburger.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://chaitin.cn/en/" target="_blank" rel="noopener noreferrer">
+        <a href="https://chaitin.cn/en/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://anymod.com" target="_blank" rel="noopener noreferrer">
+        <a href="https://anymod.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.frontenddeveloperlove.com/" target="_blank" rel="noopener noreferrer">
+        <a href="https://www.frontenddeveloperlove.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://onsen.io/vue/" target="_blank" rel="noopener noreferrer">
+        <a href="https://onsen.io/vue/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://vuetifyjs.com" target="_blank" rel="noopener noreferrer">
+        <a href="https://vuetifyjs.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://neds.com.au/" target="_blank" rel="noopener noreferrer">
+        <a href="https://neds.com.au/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank" rel="noopener noreferrer">
+        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://icons8.com/" target="_blank" rel="noopener noreferrer">
+        <a href="https://icons8.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank" rel="noopener noreferrer">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://leanpub.com/vuejs2" target="_blank" rel="noopener noreferrer">
+        <a href="https://leanpub.com/vuejs2" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://www.bmqb.com/jobs" target="_blank" rel="noopener noreferrer">
+        <a href="https://www.bmqb.com/jobs" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bmqb.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://codepilot.ai" target="_blank" rel="noopener noreferrer">
+        <a href="https://codepilot.ai" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://teamextension.io/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 7b387390aa917edffc0eabce0b4186ea1ef40e2c Mon Sep 17 00:00:00 2001
From: dherman <daniel.c.herman@gmail.com>
Date: Thu, 22 Mar 2018 09:53:28 -0400
Subject: [PATCH 452/911] fix: correct the `has` implementation in the
 `_renderProxy` (#7878)

It's feasible that someone might ask if something other than a string is
in the proxy such as a `Symbol` that lacks a `charAt` method.  This aligns
the implementation with the `getHandler`.
---
 src/core/instance/proxy.js                      |  2 +-
 .../unit/features/instance/render-proxy.spec.js | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/proxy.js b/src/core/instance/proxy.js
index 0d6dcf80639..8c821baa09b 100644
--- a/src/core/instance/proxy.js
+++ b/src/core/instance/proxy.js
@@ -45,7 +45,7 @@ if (process.env.NODE_ENV !== 'production') {
   const hasHandler = {
     has (target, key) {
       const has = key in target
-      const isAllowed = allowedGlobals(key) || key.charAt(0) === '_'
+      const isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_')
       if (!has && !isAllowed) {
         warnNonPresent(target, key)
       }
diff --git a/test/unit/features/instance/render-proxy.spec.js b/test/unit/features/instance/render-proxy.spec.js
index d4d01ebcf2a..9a2365ae4c1 100644
--- a/test/unit/features/instance/render-proxy.spec.js
+++ b/test/unit/features/instance/render-proxy.spec.js
@@ -28,5 +28,22 @@ if (typeof Proxy !== 'undefined') {
       }).$mount()
       expect(`Property or method "a" is not defined`).not.toHaveBeenWarned()
     })
+
+    it('support symbols using the `in` operator in hand-written render functions', () => {
+      const sym = Symbol()
+
+      const vm = new Vue({
+        created () {
+          this[sym] = 'foo'
+        },
+        render (h) {
+          if (sym in this) {
+            return h('div', [this[sym]])
+          }
+        }
+      }).$mount()
+
+      expect(vm.$el.textContent).toBe('foo')
+    })
   })
 }

From 43551b4fb60f449eb28600023eb0d3a3cf604a0e Mon Sep 17 00:00:00 2001
From: Huo Chunyang <HcySunYang@outlook.com>
Date: Thu, 22 Mar 2018 21:56:05 +0800
Subject: [PATCH 453/911] refactor: remove unnecessary checks (#7875)

---
 src/core/instance/state.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index b1549b0dcc4..eb8ec4b71b8 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -111,9 +111,8 @@ function initProps (vm: Component, propsOptions: Object) {
 
 function initData (vm: Component) {
   let data = vm.$options.data
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {}
+  // $options.data is guaranteed to be a function after merge
+  data = vm._data = getData(data, vm)
   if (!isPlainObject(data)) {
     data = {}
     process.env.NODE_ENV !== 'production' && warn(

From 49385e1efab90f8c75087a731de2fcdcb367941e Mon Sep 17 00:00:00 2001
From: Ryan Cavanaugh <RyanCavanaugh@users.noreply.github.com>
Date: Thu, 22 Mar 2018 06:58:04 -0700
Subject: [PATCH 454/911] types: add UMD global declaration to index.d.ts
 (#7868)

Users using Vue from e.g. the CDN might be using the global `.Vue` without importing the module.

See https://www.typescriptlang.org/docs/handbook/modules.html for details on the syntax
---
 types/index.d.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/types/index.d.ts b/types/index.d.ts
index 720180d2a5a..a74a371484b 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -2,6 +2,8 @@ import { Vue } from "./vue";
 
 export default Vue;
 
+export as namespace Vue;
+
 export {
   CreateElement,
   VueConstructor

From 903be9b91f7c41d40e228676df9d66d2c064fe23 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 22 Mar 2018 10:01:53 -0400
Subject: [PATCH 455/911] Revert "refactor: remove unnecessary checks (#7875)"

This reverts commit 43551b4fb60f449eb28600023eb0d3a3cf604a0e.
---
 src/core/instance/state.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index eb8ec4b71b8..b1549b0dcc4 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -111,8 +111,9 @@ function initProps (vm: Component, propsOptions: Object) {
 
 function initData (vm: Component) {
   let data = vm.$options.data
-  // $options.data is guaranteed to be a function after merge
-  data = vm._data = getData(data, vm)
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {}
   if (!isPlainObject(data)) {
     data = {}
     process.env.NODE_ENV !== 'production' && warn(

From 943e5c242b6c3a8cc92478dc95aba0a5b4b49588 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Andr=C3=A8s?= <leo@ndrs.fr>
Date: Thu, 22 Mar 2018 14:02:40 +0000
Subject: [PATCH 456/911] workflow: clean shell scripts (#7826)

---
 scripts/release-weex.sh | 18 ++++++++++--------
 scripts/release.sh      | 24 +++++++++++++-----------
 2 files changed, 23 insertions(+), 19 deletions(-)

diff --git a/scripts/release-weex.sh b/scripts/release-weex.sh
index 3bb5412dd4f..f731977769f 100644
--- a/scripts/release-weex.sh
+++ b/scripts/release-weex.sh
@@ -1,6 +1,7 @@
+#!/bin/bash
 set -e
-CUR_VERSION=`node build/get-weex-version.js -c`
-NEXT_VERSION=`node build/get-weex-version.js`
+CUR_VERSION=$(node build/get-weex-version.js -c)
+NEXT_VERSION=$(node build/get-weex-version.js)
 
 echo "Current: $CUR_VERSION"
 read -p "Enter new version ($NEXT_VERSION): " -n 1 -r
@@ -20,15 +21,16 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
   WEEX_VERSION=$NEXT_VERSION npm run build:weex
 
   # update package
-  cd packages/weex-vue-framework
-  npm version $NEXT_VERSION
+  # using subshells to avoid having to cd back
+  ( cd packages/weex-vue-framework
+  npm version "$NEXT_VERSION"
   npm publish
-  cd -
+  )
 
-  cd packages/weex-template-compiler
-  npm version $NEXT_VERSION
+  ( cd packages/weex-template-compiler
+  npm version "$NEXT_VERSION"
   npm publish
-  cd -
+  )
 
   # commit
   git add packages/weex*
diff --git a/scripts/release.sh b/scripts/release.sh
index 6592fd4023c..71ebf8402a4 100644
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -1,8 +1,9 @@
+#!/bin/bash
 set -e
 
 if [[ -z $1 ]]; then
   echo "Enter new version: "
-  read VERSION
+  read -r VERSION
 else
   VERSION=$1
 fi
@@ -32,23 +33,24 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
   VERSION=$VERSION npm run build
 
   # update packages
-  cd packages/vue-template-compiler
-  npm version $VERSION
+  # using subshells to avoid having to cd back
+  ( ( cd packages/vue-template-compiler
+  npm version "$VERSION"
   if [[ -z $RELEASE_TAG ]]; then
     npm publish
   else
-    npm publish --tag $RELEASE_TAG
+    npm publish --tag "$RELEASE_TAG"
   fi
-  cd -
+  )
 
   cd packages/vue-server-renderer
-  npm version $VERSION
+  npm version "$VERSION"
   if [[ -z $RELEASE_TAG ]]; then
     npm publish
   else
-    npm publish --tag $RELEASE_TAG
+    npm publish --tag "$RELEASE_TAG"
   fi
-  cd -
+  )
 
   # commit
   git add -A
@@ -63,14 +65,14 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
   # generate release note
   npm run release:note
   # tag version
-  npm version $VERSION --message "build: release $VERSION"
+  npm version "$VERSION" --message "build: release $VERSION"
 
   # publish
-  git push origin refs/tags/v$VERSION
+  git push origin refs/tags/v"$VERSION"
   git push
   if [[ -z $RELEASE_TAG ]]; then
     npm publish
   else
-    npm publish --tag $RELEASE_TAG
+    npm publish --tag "$RELEASE_TAG"
   fi
 fi

From a7d190d2491a573e8bdfcc05d70d341d191ea213 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 17:02:48 -0400
Subject: [PATCH 457/911] chore: update sponsors

---
 BACKERS.md | 25 +++++++++++++++++++------
 README.md  |  5 +++++
 2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 0ee46ffcc00..ca9a4de7366 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -154,6 +154,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://jsguru.io/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsguru.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
@@ -249,7 +254,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Alex Balashov
 - Konstantin Levinski
 - Samuel Smith
-- HARRI J SALOMAA
 - tjkoury 
 - Evan Leonardi
 <!--50 end-->
@@ -264,7 +268,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Santa Cruz
 - Tom Conlon
 - Simon East
-- Henry Zhu
 - Benjamin Listwon
 - Lars Andreas Ness
 - Victor Tolbert
@@ -278,7 +281,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
-- Isaac Sant
 - Milos Stojanovic
 - 4 
 - The Graphic Design School
@@ -292,7 +294,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Dariusz Jastrzębski
 - Matt Jones
 - Dave Chenell
-- Cheng-Wei Chien
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
@@ -301,7 +302,9 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
 - Zoran Knezevic
+- John Bergloff
 - James Simpson
+- Pascal Germain
 - Pierre Vanhulst
 - Vincent Gabriel
 - Chris Anderson
@@ -317,6 +320,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Nicholas Reid
 - Tyler Scott
 - Thong Yong Jun
+- Tai Shi Lgin
 - Bryan Gruneberg
 - Roman Kuba
 - Familiar Studio
@@ -328,17 +332,16 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Guilherme S L de Souza
 - Rob Yedlin
 - Daniel Waghorn
+- Eric Githinji
 - Chih-Hsuan, Fan
 - Jordan Oroshiba
 - Brian Jorden
 - Cliff Hess
 - Joe Ray Gregory
-- Johnny Eshan
 - Orney Enrique martinez Said
 - Tom Striker
 - Oskar Lindgren
 - RADD Creative
-- Maegan Wilson
 - Rua Cura D'ars
 - Richard Simpson
 - Charles McKeever
@@ -346,6 +349,16 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Jessie Hernandez
 - Eric Fong
 - Aparajita Fishman
+- Cheyenne Arrowsmith
+- Romain Lienard
+- Bohdan Kokotko
+- François Forest
+- Donald Fischer
+- Alexander Weiher
+- Daniel Cook
+- Shinya Katayama
+- Brendan Long
+- Jere Sjöroos
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 8f137f42c93..0a3642ea118 100644
--- a/README.md
+++ b/README.md
@@ -161,6 +161,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://jsguru.io/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsguru.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From de42278d34f6a800cec5c7eb781c1b8b83a829dd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:01:24 -0400
Subject: [PATCH 458/911] fix: ensure init/prepatch hooks are still repsected

this address a regression introduced in 984927a which
causes vue-router#1338 to resurface.
---
 src/core/vdom/create-component.js               | 15 ++++++++++++++-
 test/unit/modules/vdom/patch/edge-cases.spec.js |  9 ++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 8957822470b..4062debdd25 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -238,8 +238,21 @@ function installComponentHooks (data: VNodeData) {
   const hooks = data.hook || (data.hook = {})
   for (let i = 0; i < hooksToMerge.length; i++) {
     const key = hooksToMerge[i]
-    hooks[key] = componentVNodeHooks[key]
+    const existing = hooks[key]
+    const toMerge = componentVNodeHooks[key]
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook(toMerge, existing) : toMerge
+    }
+  }
+}
+
+function mergeHook (f1, f2) {
+  const merged = (a, b, c, d) => {
+    f1(a, b, c, d)
+    f2(a, b, c, d)
   }
+  merged._merged = true
+  return merged
 }
 
 // transform component v-model info (value and callback) into
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 7555833c289..4c5702b47bf 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -393,9 +393,15 @@ describe('vdom patch: edge cases', () => {
       extends: Base
     }
 
+    // sometimes we do need to tap into these internal hooks (e.g. in vue-router)
+    // so make sure it does work
+    const inlineHookSpy = jasmine.createSpy('inlineInit')
+
     const vm = new Vue({
       render (h) {
-        const data = { staticClass: 'text-red' }
+        const data = { staticClass: 'text-red', hook: {
+          init: inlineHookSpy
+        }}
 
         return h('div', [
           h(Foo, data),
@@ -405,5 +411,6 @@ describe('vdom patch: edge cases', () => {
     }).$mount()
 
     expect(vm.$el.textContent).toBe('FooBar')
+    expect(inlineHookSpy.calls.count()).toBe(2)
   })
 })

From b7445a2b945dcded287601ace8e711ab5cf35ab5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:03:00 -0400
Subject: [PATCH 459/911] fix: beforeUpdate should be called before render and
 allow state mutation (#7822)

fix #7481
---
 src/core/instance/lifecycle.js                | 11 +++++---
 src/core/observer/scheduler.js                |  3 +++
 src/core/observer/watcher.js                  |  2 ++
 .../runtime/components/transition-group.js    | 26 +++++++++++--------
 test/unit/features/options/lifecycle.spec.js  | 15 +++++++++++
 5 files changed, 42 insertions(+), 15 deletions(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 169a54a6bb3..c5dc7668b98 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -50,9 +50,6 @@ export function initLifecycle (vm: Component) {
 export function lifecycleMixin (Vue: Class<Component>) {
   Vue.prototype._update = function (vnode: VNode, hydrating?: boolean) {
     const vm: Component = this
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate')
-    }
     const prevEl = vm.$el
     const prevVnode = vm._vnode
     const prevActiveInstance = activeInstance
@@ -197,7 +194,13 @@ export function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */)
+  new Watcher(vm, updateComponent, noop, {
+    before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate')
+      }
+    }
+  }, true /* isRenderWatcher */)
   hydrating = false
 
   // manually mounted instance, call mounted on self
diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index fce86e5f40b..e7ccf57dd25 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -53,6 +53,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index]
+    if (watcher.before) {
+      watcher.before()
+    }
     id = watcher.id
     has[id] = null
     watcher.run()
diff --git a/src/core/observer/watcher.js b/src/core/observer/watcher.js
index 48a2e612e28..3c4e533c08b 100644
--- a/src/core/observer/watcher.js
+++ b/src/core/observer/watcher.js
@@ -37,6 +37,7 @@ export default class Watcher {
   newDeps: Array<Dep>;
   depIds: SimpleSet;
   newDepIds: SimpleSet;
+  before: ?Function;
   getter: Function;
   value: any;
 
@@ -58,6 +59,7 @@ export default class Watcher {
       this.user = !!options.user
       this.lazy = !!options.lazy
       this.sync = !!options.sync
+      this.before = options.before
     } else {
       this.deep = this.user = this.lazy = this.sync = false
     }
diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
index 219ff01cf54..81d033d5ad5 100644
--- a/src/platforms/web/runtime/components/transition-group.js
+++ b/src/platforms/web/runtime/components/transition-group.js
@@ -33,6 +33,21 @@ delete props.mode
 export default {
   props,
 
+  beforeMount () {
+    const update = this._update
+    this._update = (vnode, hydrating) => {
+      // force removing pass
+      this.__patch__(
+        this._vnode,
+        this.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      )
+      this._vnode = this.kept
+      update.call(this, vnode, hydrating)
+    }
+  },
+
   render (h: Function) {
     const tag: string = this.tag || this.$vnode.data.tag || 'span'
     const map: Object = Object.create(null)
@@ -76,17 +91,6 @@ export default {
     return h(tag, null, children)
   },
 
-  beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    )
-    this._vnode = this.kept
-  },
-
   updated () {
     const children: Array<VNode> = this.prevChildren
     const moveClass: string = this.moveClass || ((this.name || 'v') + '-move')
diff --git a/test/unit/features/options/lifecycle.spec.js b/test/unit/features/options/lifecycle.spec.js
index 2b649aa98e4..3fa152e70c2 100644
--- a/test/unit/features/options/lifecycle.spec.js
+++ b/test/unit/features/options/lifecycle.spec.js
@@ -137,6 +137,21 @@ describe('Options lifecycle hooks', () => {
         expect(spy).toHaveBeenCalled()
       }).then(done)
     })
+
+    it('should be called before render and allow mutating state', done => {
+      const vm = new Vue({
+        template: '<div>{{ msg }}</div>',
+        data: { msg: 'foo' },
+        beforeUpdate () {
+          this.msg += '!'
+        }
+      }).$mount()
+      expect(vm.$el.textContent).toBe('foo')
+      vm.msg = 'bar'
+      waitForUpdate(() => {
+        expect(vm.$el.textContent).toBe('bar!')
+      }).then(done)
+    })
   })
 
   describe('updated', () => {

From f43ce3a5d8f73e273f2d03c9d86ea5662cda481a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:03:17 -0400
Subject: [PATCH 460/911] fix: invoke component node create hooks before
 insertion (#7823)

fix #7531
---
 flow/options.js                   |  4 ----
 src/core/instance/init.js         |  2 --
 src/core/instance/lifecycle.js    |  9 +--------
 src/core/vdom/create-component.js | 17 +++--------------
 src/core/vdom/patch.js            |  7 ++++---
 5 files changed, 8 insertions(+), 31 deletions(-)

diff --git a/flow/options.js b/flow/options.js
index e4c6ed1f968..2e138a62ab9 100644
--- a/flow/options.js
+++ b/flow/options.js
@@ -2,8 +2,6 @@ declare type InternalComponentOptions = {
   _isComponent: true;
   parent: Component;
   _parentVnode: VNode;
-  _parentElm: ?Node;
-  _refElm: ?Node;
   render?: Function;
   staticRenderFns?: Array<Function>
 };
@@ -81,8 +79,6 @@ declare type ComponentOptions = {
   _componentTag: ?string;
   _scopeId: ?string;
   _base: Class<Component>;
-  _parentElm: ?Node;
-  _refElm: ?Node;
 };
 
 declare type PropOptions = {
diff --git a/src/core/instance/init.js b/src/core/instance/init.js
index ed2550d09ae..9b2ec80c44d 100644
--- a/src/core/instance/init.js
+++ b/src/core/instance/init.js
@@ -77,8 +77,6 @@ export function initInternalComponent (vm: Component, options: InternalComponent
   const parentVnode = options._parentVnode
   opts.parent = options.parent
   opts._parentVnode = parentVnode
-  opts._parentElm = options._parentElm
-  opts._refElm = options._refElm
 
   const vnodeComponentOptions = parentVnode.componentOptions
   opts.propsData = vnodeComponentOptions.propsData
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index c5dc7668b98..5521e03ed35 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -59,14 +59,7 @@ export function lifecycleMixin (Vue: Class<Component>) {
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      )
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */)
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode)
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 4062debdd25..f9ba952a2eb 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -34,12 +34,7 @@ import {
 
 // inline hooks to be invoked on component VNodes during patch
 const componentVNodeHooks = {
-  init (
-    vnode: VNodeWithData,
-    hydrating: boolean,
-    parentElm: ?Node,
-    refElm: ?Node
-  ): ?boolean {
+  init (vnode: VNodeWithData, hydrating: boolean): ?boolean {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -51,9 +46,7 @@ const componentVNodeHooks = {
     } else {
       const child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       )
       child.$mount(hydrating ? vnode.elm : undefined, hydrating)
     }
@@ -215,15 +208,11 @@ export function createComponent (
 export function createComponentInstanceForVnode (
   vnode: any, // we know it's MountedComponentVNode but flow doesn't
   parent: any, // activeInstance in lifecycle state
-  parentElm?: ?Node,
-  refElm?: ?Node
 ): Component {
   const options: InternalComponentOptions = {
     _isComponent: true,
-    parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent
   }
   // check inline-template render functions
   const inlineTemplate = vnode.data.inlineTemplate
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 9f3bcc6512c..fb28d8cd341 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -212,7 +212,7 @@ export function createPatchFunction (backend) {
     if (isDef(i)) {
       const isReactivated = isDef(vnode.componentInstance) && i.keepAlive
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm)
+        i(vnode, false /* hydrating */)
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -220,6 +220,7 @@ export function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue)
+        insert(parentElm, vnode.elm, refElm)
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm)
         }
@@ -681,7 +682,7 @@ export function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) invokeDestroyHook(oldVnode)
       return
@@ -693,7 +694,7 @@ export function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm)
+      createElm(vnode, insertedVnodeQueue)
     } else {
       const isRealElement = isDef(oldVnode.nodeType)
       if (!isRealElement && sameVnode(oldVnode, vnode)) {

From 653aac2c57d15f0e93a2c1cc7e6fad156658df19 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:03:27 -0400
Subject: [PATCH 461/911] perf: avoid unnecessary re-renders when computed
 property value did not change (#7824)

close #7767
---
 src/core/instance/state.js                  |  13 +--
 src/core/observer/watcher.js                | 101 +++++++++++++-------
 test/unit/features/options/computed.spec.js |  36 +++++++
 test/unit/modules/observer/watcher.spec.js  |  54 ++++++++++-
 4 files changed, 153 insertions(+), 51 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index b1549b0dcc4..326f7f36bf7 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -2,7 +2,7 @@
 
 import config from '../config'
 import Watcher from '../observer/watcher'
-import Dep, { pushTarget, popTarget } from '../observer/dep'
+import { pushTarget, popTarget } from '../observer/dep'
 import { isUpdatingChildComponent } from './lifecycle'
 
 import {
@@ -164,7 +164,7 @@ export function getData (data: Function, vm: Component): any {
   }
 }
 
-const computedWatcherOptions = { lazy: true }
+const computedWatcherOptions = { computed: true }
 
 function initComputed (vm: Component, computed: Object) {
   // $flow-disable-line
@@ -244,13 +244,8 @@ function createComputedGetter (key) {
   return function computedGetter () {
     const watcher = this._computedWatchers && this._computedWatchers[key]
     if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate()
-      }
-      if (Dep.target) {
-        watcher.depend()
-      }
-      return watcher.value
+      watcher.depend()
+      return watcher.evaluate()
     }
   }
 }
diff --git a/src/core/observer/watcher.js b/src/core/observer/watcher.js
index 3c4e533c08b..725480d9215 100644
--- a/src/core/observer/watcher.js
+++ b/src/core/observer/watcher.js
@@ -29,10 +29,11 @@ export default class Watcher {
   id: number;
   deep: boolean;
   user: boolean;
-  lazy: boolean;
+  computed: boolean;
   sync: boolean;
   dirty: boolean;
   active: boolean;
+  dep: Dep;
   deps: Array<Dep>;
   newDeps: Array<Dep>;
   depIds: SimpleSet;
@@ -57,16 +58,16 @@ export default class Watcher {
     if (options) {
       this.deep = !!options.deep
       this.user = !!options.user
-      this.lazy = !!options.lazy
+      this.computed = !!options.computed
       this.sync = !!options.sync
       this.before = options.before
     } else {
-      this.deep = this.user = this.lazy = this.sync = false
+      this.deep = this.user = this.computed = this.sync = false
     }
     this.cb = cb
     this.id = ++uid // uid for batching
     this.active = true
-    this.dirty = this.lazy // for lazy watchers
+    this.dirty = this.computed // for computed watchers
     this.deps = []
     this.newDeps = []
     this.depIds = new Set()
@@ -89,9 +90,12 @@ export default class Watcher {
         )
       }
     }
-    this.value = this.lazy
-      ? undefined
-      : this.get()
+    if (this.computed) {
+      this.value = undefined
+      this.dep = new Dep()
+    } else {
+      this.value = this.get()
+    }
   }
 
   /**
@@ -162,8 +166,24 @@ export default class Watcher {
    */
   update () {
     /* istanbul ignore else */
-    if (this.lazy) {
-      this.dirty = true
+    if (this.computed) {
+      // A computed property watcher has two modes: lazy and activated.
+      // It initializes as lazy by default, and only becomes activated when
+      // it is depended on by at least one subscriber, which is typically
+      // another computed property or a component's render function.
+      if (this.dep.subs.length === 0) {
+        // In lazy mode, we don't want to perform computations until necessary,
+        // so we simply mark the watcher as dirty. The actual computation is
+        // performed just-in-time in this.evaluate() when the computed property
+        // is accessed.
+        this.dirty = true
+      } else {
+        // In activated mode, we want to proactively perform the computation
+        // but only notify our subscribers when the value has indeed changed.
+        this.getAndInvoke(() => {
+          this.dep.notify()
+        })
+      }
     } else if (this.sync) {
       this.run()
     } else {
@@ -177,47 +197,54 @@ export default class Watcher {
    */
   run () {
     if (this.active) {
-      const value = this.get()
-      if (
-        value !== this.value ||
-        // Deep watchers and watchers on Object/Arrays should fire even
-        // when the value is the same, because the value may
-        // have mutated.
-        isObject(value) ||
-        this.deep
-      ) {
-        // set new value
-        const oldValue = this.value
-        this.value = value
-        if (this.user) {
-          try {
-            this.cb.call(this.vm, value, oldValue)
-          } catch (e) {
-            handleError(e, this.vm, `callback for watcher "${this.expression}"`)
-          }
-        } else {
-          this.cb.call(this.vm, value, oldValue)
+      this.getAndInvoke(this.cb)
+    }
+  }
+
+  getAndInvoke (cb: Function) {
+    const value = this.get()
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      const oldValue = this.value
+      this.value = value
+      this.dirty = false
+      if (this.user) {
+        try {
+          cb.call(this.vm, value, oldValue)
+        } catch (e) {
+          handleError(e, this.vm, `callback for watcher "${this.expression}"`)
         }
+      } else {
+        cb.call(this.vm, value, oldValue)
       }
     }
   }
 
   /**
-   * Evaluate the value of the watcher.
-   * This only gets called for lazy watchers.
+   * Evaluate and return the value of the watcher.
+   * This only gets called for computed property watchers.
    */
   evaluate () {
-    this.value = this.get()
-    this.dirty = false
+    if (this.dirty) {
+      this.value = this.get()
+      this.dirty = false
+    }
+    return this.value
   }
 
   /**
-   * Depend on all deps collected by this watcher.
+   * Depend on this watcher. Only for computed property watchers.
    */
   depend () {
-    let i = this.deps.length
-    while (i--) {
-      this.deps[i].depend()
+    if (this.dep && Dep.target) {
+      this.dep.depend()
     }
   }
 
diff --git a/test/unit/features/options/computed.spec.js b/test/unit/features/options/computed.spec.js
index edc20bad3bf..fc606072e7d 100644
--- a/test/unit/features/options/computed.spec.js
+++ b/test/unit/features/options/computed.spec.js
@@ -216,4 +216,40 @@ describe('Options computed', () => {
     })
     expect(() => vm.a).toThrowError('rethrow')
   })
+
+  // #7767
+  it('should avoid unnecessary re-renders', done => {
+    const computedSpy = jasmine.createSpy('computed')
+    const updatedSpy = jasmine.createSpy('updated')
+    const vm = new Vue({
+      data: {
+        msg: 'bar'
+      },
+      computed: {
+        a () {
+          computedSpy()
+          return this.msg !== 'foo'
+        }
+      },
+      template: `<div>{{ a }}</div>`,
+      updated: updatedSpy
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('true')
+    expect(computedSpy.calls.count()).toBe(1)
+    expect(updatedSpy.calls.count()).toBe(0)
+
+    vm.msg = 'baz'
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe('true')
+      expect(computedSpy.calls.count()).toBe(2)
+      expect(updatedSpy.calls.count()).toBe(0)
+    }).then(() => {
+      vm.msg = 'foo'
+    }).then(() => {
+      expect(vm.$el.textContent).toBe('false')
+      expect(computedSpy.calls.count()).toBe(3)
+      expect(updatedSpy.calls.count()).toBe(1)
+    }).then(done)
+  })
 })
diff --git a/test/unit/modules/observer/watcher.spec.js b/test/unit/modules/observer/watcher.spec.js
index 724a3cc8637..ba96b28ffce 100644
--- a/test/unit/modules/observer/watcher.spec.js
+++ b/test/unit/modules/observer/watcher.spec.js
@@ -144,26 +144,70 @@ describe('Watcher', () => {
     }).then(done)
   })
 
-  it('lazy mode', done => {
+  it('computed mode, lazy', done => {
+    let getterCallCount = 0
     const watcher = new Watcher(vm, function () {
+      getterCallCount++
       return this.a + this.b.d
-    }, null, { lazy: true })
-    expect(watcher.lazy).toBe(true)
+    }, null, { computed: true })
+
+    expect(getterCallCount).toBe(0)
+    expect(watcher.computed).toBe(true)
     expect(watcher.value).toBeUndefined()
     expect(watcher.dirty).toBe(true)
-    watcher.evaluate()
+    expect(watcher.dep).toBeTruthy()
+
+    const value = watcher.evaluate()
+    expect(getterCallCount).toBe(1)
+    expect(value).toBe(5)
     expect(watcher.value).toBe(5)
     expect(watcher.dirty).toBe(false)
+
+    // should not get again if not dirty
+    watcher.evaluate()
+    expect(getterCallCount).toBe(1)
+
     vm.a = 2
     waitForUpdate(() => {
+      expect(getterCallCount).toBe(1)
       expect(watcher.value).toBe(5)
       expect(watcher.dirty).toBe(true)
-      watcher.evaluate()
+
+      const value = watcher.evaluate()
+      expect(getterCallCount).toBe(2)
+      expect(value).toBe(6)
       expect(watcher.value).toBe(6)
       expect(watcher.dirty).toBe(false)
     }).then(done)
   })
 
+  it('computed mode, activated', done => {
+    let getterCallCount = 0
+    const watcher = new Watcher(vm, function () {
+      getterCallCount++
+      return this.a + this.b.d
+    }, null, { computed: true })
+
+    // activate by mocking a subscriber
+    const subMock = jasmine.createSpyObj('sub', ['update'])
+    watcher.dep.addSub(subMock)
+
+    const value = watcher.evaluate()
+    expect(getterCallCount).toBe(1)
+    expect(value).toBe(5)
+
+    vm.a = 2
+    waitForUpdate(() => {
+      expect(getterCallCount).toBe(2)
+      expect(subMock.update).toHaveBeenCalled()
+
+      // since already computed, calling evaluate again should not trigger
+      // getter
+      watcher.evaluate()
+      expect(getterCallCount).toBe(2)
+    }).then(done)
+  })
+
   it('teardown', done => {
     const watcher = new Watcher(vm, 'b.c', spy)
     watcher.teardown()

From 7a145d86430bad65271f4d6ab1344b215fefe52a Mon Sep 17 00:00:00 2001
From: Piotr Kaminski <piotr@ideanest.com>
Date: Fri, 23 Mar 2018 16:08:02 -0700
Subject: [PATCH 462/911] fix(observer): invoke getters on initial observation
 if setter defined (#7828)

---
 src/core/observer/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 4a030ed7f99..35469aaf16a 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -147,10 +147,10 @@ export function defineReactive (
 
   // cater for pre-defined getter/setters
   const getter = property && property.get
-  if (!getter && arguments.length === 2) {
+  const setter = property && property.set
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key]
   }
-  const setter = property && property.set
 
   let childOb = !shallow && observe(val)
   Object.defineProperty(obj, key, {

From 1bd6196fb234c28754d9a27095afe0b5b84990ad Mon Sep 17 00:00:00 2001
From: Matheus Azzi <matheuslazzi@gmail.com>
Date: Fri, 23 Mar 2018 20:08:55 -0300
Subject: [PATCH 463/911] fix(codegen): support IE11 and Edge use of "Esc" key
 (#7887)

Closes #7880
---
 src/compiler/codegen/events.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 4f9222466ad..c2a73a7f10b 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -18,7 +18,8 @@ const keyCodes: { [key: string]: number | Array<number> } = {
 
 // KeyboardEvent.key aliases
 const keyNames: { [key: string]: string | Array<string> } = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',

From 8227fb35240ab1f301c30a6ad5d4d25071fa7996 Mon Sep 17 00:00:00 2001
From: Luis Hernandez <luis@maniak.com.mx>
Date: Fri, 23 Mar 2018 17:13:10 -0600
Subject: [PATCH 464/911] fix: add missing `asyncMeta` during VNode cloning
 (#7861)

---
 src/core/vdom/vnode.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 88e80cec17c..c3e00078fea 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -103,6 +103,7 @@ export function cloneVNode (vnode: VNode): VNode {
   cloned.fnContext = vnode.fnContext
   cloned.fnOptions = vnode.fnOptions
   cloned.fnScopeId = vnode.fnScopeId
+  cloned.asyncMeta = vnode.asyncMeta
   cloned.isCloned = true
   return cloned
 }

From faaf142cb620f864f5a6d65ab58c9fb1677c85c6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:06:49 -0400
Subject: [PATCH 465/911] refactor: reduce component mergeHook arg count

Because f43ce3a5 removed the two extra args from init hook
---
 src/core/vdom/create-component.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index f9ba952a2eb..b7bb3448a5b 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -236,9 +236,9 @@ function installComponentHooks (data: VNodeData) {
 }
 
 function mergeHook (f1, f2) {
-  const merged = (a, b, c, d) => {
-    f1(a, b, c, d)
-    f2(a, b, c, d)
+  const merged = (a, b) => {
+    f1(a, b)
+    f2(a, b)
   }
   merged._merged = true
   return merged

From f1480774372bd395f04beef20d8056a4d6b2ccfb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:21:34 -0400
Subject: [PATCH 466/911] chore: format

---
 test/unit/features/directives/model-checkbox.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/features/directives/model-checkbox.spec.js b/test/unit/features/directives/model-checkbox.spec.js
index 2b73e23d302..7d48dd1b8ad 100644
--- a/test/unit/features/directives/model-checkbox.spec.js
+++ b/test/unit/features/directives/model-checkbox.spec.js
@@ -337,7 +337,7 @@ describe('Directive v-model checkbox', () => {
       expect(vm.$el.children[1].textContent).toBe('false')
     }).then(done)
   })
-  
+
   // #7811
   it('type should not be overwritten by v-bind', () => {
     const vm = new Vue({

From 950daca99b872e240131908aaa5ad1889f749476 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:21:45 -0400
Subject: [PATCH 467/911] types: make flow happy

---
 src/core/vdom/create-component.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index b7bb3448a5b..697afbefb22 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -235,8 +235,9 @@ function installComponentHooks (data: VNodeData) {
   }
 }
 
-function mergeHook (f1, f2) {
+function mergeHook (f1: any, f2: any): Function {
   const merged = (a, b) => {
+    // flow complains about extra args which is why we use any
     f1(a, b)
     f2(a, b)
   }

From dbf15103f797a54f41288af2a393b1e8ccee0aec Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:28:59 -0400
Subject: [PATCH 468/911] build: build 2.5.17-beta.0

---
 dist/vue.common.js                          | 231 +++++++++++---------
 dist/vue.esm.js                             | 231 +++++++++++---------
 dist/vue.js                                 | 231 +++++++++++---------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.js                  | 228 ++++++++++---------
 dist/vue.runtime.esm.js                     | 228 ++++++++++---------
 dist/vue.runtime.js                         | 228 ++++++++++---------
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       |  43 ++--
 packages/vue-server-renderer/build.js       |  43 ++--
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |   7 +-
 packages/vue-template-compiler/build.js     |   7 +-
 packages/vue-template-compiler/package.json |   2 +-
 14 files changed, 842 insertions(+), 647 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 44fe0ecc29f..0b8d12d2e5e 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -797,6 +797,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -975,10 +976,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1929,7 +1930,7 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
       if (!has && !isAllowed) {
         warnNonPresent(target, key);
       }
@@ -2647,9 +2648,6 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
     var prevActiveInstance = activeInstance;
@@ -2659,14 +2657,7 @@ function lifecycleMixin (Vue) {
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
@@ -2794,7 +2785,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -2978,6 +2975,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3097,15 +3097,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.lazy = !!options.lazy;
+    this.computed = !!options.computed;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    this.deep = this.user = this.computed = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
+  this.dirty = this.computed; // for computed watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3128,9 +3129,12 @@ var Watcher = function Watcher (
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
+  if (this.computed) {
+    this.value = undefined;
+    this.dep = new Dep();
+  } else {
+    this.value = this.get();
+  }
 };
 
 /**
@@ -3202,9 +3206,27 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
+    var this$1 = this;
+
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
+  if (this.computed) {
+    // A computed property watcher has two modes: lazy and activated.
+    // It initializes as lazy by default, and only becomes activated when
+    // it is depended on by at least one subscriber, which is typically
+    // another computed property or a component's render function.
+    if (this.dep.subs.length === 0) {
+      // In lazy mode, we don't want to perform computations until necessary,
+      // so we simply mark the watcher as dirty. The actual computation is
+      // performed just-in-time in this.evaluate() when the computed property
+      // is accessed.
+      this.dirty = true;
+    } else {
+      // In activated mode, we want to proactively perform the computation
+      // but only notify our subscribers when the value has indeed changed.
+      this.getAndInvoke(function () {
+        this$1.dep.notify();
+      });
+    }
   } else if (this.sync) {
     this.run();
   } else {
@@ -3218,49 +3240,54 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
+    this.getAndInvoke(this.cb);
+  }
+};
+
+Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
+  var value = this.get();
+  if (
+    value !== this.value ||
+    // Deep watchers and watchers on Object/Arrays should fire even
+    // when the value is the same, because the value may
+    // have mutated.
+    isObject(value) ||
+    this.deep
+  ) {
+    // set new value
+    var oldValue = this.value;
+    this.value = value;
+    this.dirty = false;
+    if (this.user) {
+      try {
+        cb.call(this.vm, value, oldValue);
+      } catch (e) {
+        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
       }
+    } else {
+      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
+ * Evaluate and return the value of the watcher.
+ * This only gets called for computed property watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
+  if (this.dirty) {
+    this.value = this.get();
+    this.dirty = false;
+  }
+  return this.value
 };
 
 /**
- * Depend on all deps collected by this watcher.
+ * Depend on this watcher. Only for computed property watchers.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
+  if (this.dep && Dep.target) {
+    this.dep.depend();
   }
 };
 
@@ -3425,7 +3452,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { lazy: true };
+var computedWatcherOptions = { computed: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3505,13 +3532,8 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
+      watcher.depend();
+      return watcher.evaluate()
     }
   }
 }
@@ -4115,12 +4137,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4132,9 +4149,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4292,16 +4307,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4316,10 +4327,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
@@ -4650,8 +4675,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5090,7 +5113,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.16';
+Vue.version = '2.5.17-beta.0';
 
 /*  */
 
@@ -5607,7 +5630,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -5615,6 +5638,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6078,7 +6102,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6090,7 +6114,7 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
@@ -6126,7 +6150,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6135,7 +6159,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6170,8 +6194,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -8366,6 +8390,23 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -8409,17 +8450,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -9974,7 +10004,8 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index d20f461fa39..0135a93ef54 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -795,6 +795,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -973,10 +974,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1927,7 +1928,7 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
       if (!has && !isAllowed) {
         warnNonPresent(target, key);
       }
@@ -2645,9 +2646,6 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
     var prevActiveInstance = activeInstance;
@@ -2657,14 +2655,7 @@ function lifecycleMixin (Vue) {
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
@@ -2792,7 +2783,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -2976,6 +2973,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3095,15 +3095,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.lazy = !!options.lazy;
+    this.computed = !!options.computed;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    this.deep = this.user = this.computed = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
+  this.dirty = this.computed; // for computed watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3126,9 +3127,12 @@ var Watcher = function Watcher (
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
+  if (this.computed) {
+    this.value = undefined;
+    this.dep = new Dep();
+  } else {
+    this.value = this.get();
+  }
 };
 
 /**
@@ -3200,9 +3204,27 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
+    var this$1 = this;
+
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
+  if (this.computed) {
+    // A computed property watcher has two modes: lazy and activated.
+    // It initializes as lazy by default, and only becomes activated when
+    // it is depended on by at least one subscriber, which is typically
+    // another computed property or a component's render function.
+    if (this.dep.subs.length === 0) {
+      // In lazy mode, we don't want to perform computations until necessary,
+      // so we simply mark the watcher as dirty. The actual computation is
+      // performed just-in-time in this.evaluate() when the computed property
+      // is accessed.
+      this.dirty = true;
+    } else {
+      // In activated mode, we want to proactively perform the computation
+      // but only notify our subscribers when the value has indeed changed.
+      this.getAndInvoke(function () {
+        this$1.dep.notify();
+      });
+    }
   } else if (this.sync) {
     this.run();
   } else {
@@ -3216,49 +3238,54 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
+    this.getAndInvoke(this.cb);
+  }
+};
+
+Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
+  var value = this.get();
+  if (
+    value !== this.value ||
+    // Deep watchers and watchers on Object/Arrays should fire even
+    // when the value is the same, because the value may
+    // have mutated.
+    isObject(value) ||
+    this.deep
+  ) {
+    // set new value
+    var oldValue = this.value;
+    this.value = value;
+    this.dirty = false;
+    if (this.user) {
+      try {
+        cb.call(this.vm, value, oldValue);
+      } catch (e) {
+        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
       }
+    } else {
+      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
+ * Evaluate and return the value of the watcher.
+ * This only gets called for computed property watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
+  if (this.dirty) {
+    this.value = this.get();
+    this.dirty = false;
+  }
+  return this.value
 };
 
 /**
- * Depend on all deps collected by this watcher.
+ * Depend on this watcher. Only for computed property watchers.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
+  if (this.dep && Dep.target) {
+    this.dep.depend();
   }
 };
 
@@ -3423,7 +3450,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { lazy: true };
+var computedWatcherOptions = { computed: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3503,13 +3530,8 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
+      watcher.depend();
+      return watcher.evaluate()
     }
   }
 }
@@ -4113,12 +4135,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4130,9 +4147,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4290,16 +4305,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4314,10 +4325,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
@@ -4648,8 +4673,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5088,7 +5111,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.16';
+Vue.version = '2.5.17-beta.0';
 
 /*  */
 
@@ -5605,7 +5628,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -5613,6 +5636,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6076,7 +6100,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6088,7 +6112,7 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
@@ -6124,7 +6148,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6133,7 +6157,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6168,8 +6192,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -8364,6 +8388,23 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -8407,17 +8448,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -9972,7 +10002,8 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
diff --git a/dist/vue.js b/dist/vue.js
index 657cb37eaa6..74a71bb673a 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -801,6 +801,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -979,10 +980,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1929,7 +1930,7 @@ var initProxy;
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
       if (!has && !isAllowed) {
         warnNonPresent(target, key);
       }
@@ -2645,9 +2646,6 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
     var prevActiveInstance = activeInstance;
@@ -2657,14 +2655,7 @@ function lifecycleMixin (Vue) {
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
@@ -2792,7 +2783,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -2976,6 +2973,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3095,15 +3095,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.lazy = !!options.lazy;
+    this.computed = !!options.computed;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    this.deep = this.user = this.computed = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
+  this.dirty = this.computed; // for computed watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3124,9 +3125,12 @@ var Watcher = function Watcher (
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
+  if (this.computed) {
+    this.value = undefined;
+    this.dep = new Dep();
+  } else {
+    this.value = this.get();
+  }
 };
 
 /**
@@ -3198,9 +3202,27 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
+    var this$1 = this;
+
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
+  if (this.computed) {
+    // A computed property watcher has two modes: lazy and activated.
+    // It initializes as lazy by default, and only becomes activated when
+    // it is depended on by at least one subscriber, which is typically
+    // another computed property or a component's render function.
+    if (this.dep.subs.length === 0) {
+      // In lazy mode, we don't want to perform computations until necessary,
+      // so we simply mark the watcher as dirty. The actual computation is
+      // performed just-in-time in this.evaluate() when the computed property
+      // is accessed.
+      this.dirty = true;
+    } else {
+      // In activated mode, we want to proactively perform the computation
+      // but only notify our subscribers when the value has indeed changed.
+      this.getAndInvoke(function () {
+        this$1.dep.notify();
+      });
+    }
   } else if (this.sync) {
     this.run();
   } else {
@@ -3214,49 +3236,54 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
+    this.getAndInvoke(this.cb);
+  }
+};
+
+Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
+  var value = this.get();
+  if (
+    value !== this.value ||
+    // Deep watchers and watchers on Object/Arrays should fire even
+    // when the value is the same, because the value may
+    // have mutated.
+    isObject(value) ||
+    this.deep
+  ) {
+    // set new value
+    var oldValue = this.value;
+    this.value = value;
+    this.dirty = false;
+    if (this.user) {
+      try {
+        cb.call(this.vm, value, oldValue);
+      } catch (e) {
+        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
       }
+    } else {
+      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
+ * Evaluate and return the value of the watcher.
+ * This only gets called for computed property watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
+  if (this.dirty) {
+    this.value = this.get();
+    this.dirty = false;
+  }
+  return this.value
 };
 
 /**
- * Depend on all deps collected by this watcher.
+ * Depend on this watcher. Only for computed property watchers.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
+  if (this.dep && Dep.target) {
+    this.dep.depend();
   }
 };
 
@@ -3419,7 +3446,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { lazy: true };
+var computedWatcherOptions = { computed: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3499,13 +3526,8 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
+      watcher.depend();
+      return watcher.evaluate()
     }
   }
 }
@@ -4107,12 +4129,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4124,9 +4141,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4284,16 +4299,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4308,10 +4319,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
@@ -4635,8 +4660,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5075,7 +5098,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.16';
+Vue.version = '2.5.17-beta.0';
 
 /*  */
 
@@ -5592,7 +5615,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -5600,6 +5623,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6063,7 +6087,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6075,7 +6099,7 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
@@ -6111,7 +6135,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6120,7 +6144,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6155,8 +6179,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -8351,6 +8375,23 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -8394,17 +8435,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
@@ -9959,7 +9989,8 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 37febff24c6..a5c1b2785a5 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var y=Object.freeze({});function M(e){return null==e}function D(e){return null!=e}function S(e){return!0===e}function T(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function P(e){return null!==e&&"object"==typeof e}var r=Object.prototype.toString;function l(e){return"[object Object]"===r.call(e)}function i(e){var t=parseFloat(String(e));return 0<=t&&Math.floor(t)===t&&isFinite(e)}function t(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function F(e){var t=parseFloat(e);return isNaN(t)?e:t}function s(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var c=s("slot,component",!0),u=s("key,ref,slot,slot-scope,is");function 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 7dce2a56ce4..d642b2a6393 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -793,6 +793,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -971,10 +972,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1902,7 +1903,7 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
       if (!has && !isAllowed) {
         warnNonPresent(target, key);
       }
@@ -2643,9 +2644,6 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
     var prevActiveInstance = activeInstance;
@@ -2655,14 +2653,7 @@ function lifecycleMixin (Vue) {
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
@@ -2790,7 +2781,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -2974,6 +2971,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3093,15 +3093,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.lazy = !!options.lazy;
+    this.computed = !!options.computed;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    this.deep = this.user = this.computed = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
+  this.dirty = this.computed; // for computed watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3124,9 +3125,12 @@ var Watcher = function Watcher (
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
+  if (this.computed) {
+    this.value = undefined;
+    this.dep = new Dep();
+  } else {
+    this.value = this.get();
+  }
 };
 
 /**
@@ -3198,9 +3202,27 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
+    var this$1 = this;
+
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
+  if (this.computed) {
+    // A computed property watcher has two modes: lazy and activated.
+    // It initializes as lazy by default, and only becomes activated when
+    // it is depended on by at least one subscriber, which is typically
+    // another computed property or a component's render function.
+    if (this.dep.subs.length === 0) {
+      // In lazy mode, we don't want to perform computations until necessary,
+      // so we simply mark the watcher as dirty. The actual computation is
+      // performed just-in-time in this.evaluate() when the computed property
+      // is accessed.
+      this.dirty = true;
+    } else {
+      // In activated mode, we want to proactively perform the computation
+      // but only notify our subscribers when the value has indeed changed.
+      this.getAndInvoke(function () {
+        this$1.dep.notify();
+      });
+    }
   } else if (this.sync) {
     this.run();
   } else {
@@ -3214,49 +3236,54 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
+    this.getAndInvoke(this.cb);
+  }
+};
+
+Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
+  var value = this.get();
+  if (
+    value !== this.value ||
+    // Deep watchers and watchers on Object/Arrays should fire even
+    // when the value is the same, because the value may
+    // have mutated.
+    isObject(value) ||
+    this.deep
+  ) {
+    // set new value
+    var oldValue = this.value;
+    this.value = value;
+    this.dirty = false;
+    if (this.user) {
+      try {
+        cb.call(this.vm, value, oldValue);
+      } catch (e) {
+        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
       }
+    } else {
+      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
+ * Evaluate and return the value of the watcher.
+ * This only gets called for computed property watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
+  if (this.dirty) {
+    this.value = this.get();
+    this.dirty = false;
+  }
+  return this.value
 };
 
 /**
- * Depend on all deps collected by this watcher.
+ * Depend on this watcher. Only for computed property watchers.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
+  if (this.dep && Dep.target) {
+    this.dep.depend();
   }
 };
 
@@ -3421,7 +3448,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { lazy: true };
+var computedWatcherOptions = { computed: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3501,13 +3528,8 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
+      watcher.depend();
+      return watcher.evaluate()
     }
   }
 }
@@ -4111,12 +4133,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4128,9 +4145,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4288,16 +4303,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4312,10 +4323,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
@@ -4646,8 +4671,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5086,7 +5109,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.16';
+Vue.version = '2.5.17-beta.0';
 
 /*  */
 
@@ -5603,7 +5626,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -5611,6 +5634,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6074,7 +6098,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6086,7 +6110,7 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
@@ -6122,7 +6146,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6131,7 +6155,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6166,8 +6190,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -7821,6 +7845,23 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -7864,17 +7905,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index f5878cf5af0..a89ab5d98ca 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -791,6 +791,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -969,10 +970,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1900,7 +1901,7 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
       if (!has && !isAllowed) {
         warnNonPresent(target, key);
       }
@@ -2641,9 +2642,6 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
     var prevActiveInstance = activeInstance;
@@ -2653,14 +2651,7 @@ function lifecycleMixin (Vue) {
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
@@ -2788,7 +2779,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -2972,6 +2969,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3091,15 +3091,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.lazy = !!options.lazy;
+    this.computed = !!options.computed;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    this.deep = this.user = this.computed = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
+  this.dirty = this.computed; // for computed watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3122,9 +3123,12 @@ var Watcher = function Watcher (
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
+  if (this.computed) {
+    this.value = undefined;
+    this.dep = new Dep();
+  } else {
+    this.value = this.get();
+  }
 };
 
 /**
@@ -3196,9 +3200,27 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
+    var this$1 = this;
+
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
+  if (this.computed) {
+    // A computed property watcher has two modes: lazy and activated.
+    // It initializes as lazy by default, and only becomes activated when
+    // it is depended on by at least one subscriber, which is typically
+    // another computed property or a component's render function.
+    if (this.dep.subs.length === 0) {
+      // In lazy mode, we don't want to perform computations until necessary,
+      // so we simply mark the watcher as dirty. The actual computation is
+      // performed just-in-time in this.evaluate() when the computed property
+      // is accessed.
+      this.dirty = true;
+    } else {
+      // In activated mode, we want to proactively perform the computation
+      // but only notify our subscribers when the value has indeed changed.
+      this.getAndInvoke(function () {
+        this$1.dep.notify();
+      });
+    }
   } else if (this.sync) {
     this.run();
   } else {
@@ -3212,49 +3234,54 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
+    this.getAndInvoke(this.cb);
+  }
+};
+
+Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
+  var value = this.get();
+  if (
+    value !== this.value ||
+    // Deep watchers and watchers on Object/Arrays should fire even
+    // when the value is the same, because the value may
+    // have mutated.
+    isObject(value) ||
+    this.deep
+  ) {
+    // set new value
+    var oldValue = this.value;
+    this.value = value;
+    this.dirty = false;
+    if (this.user) {
+      try {
+        cb.call(this.vm, value, oldValue);
+      } catch (e) {
+        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
       }
+    } else {
+      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
+ * Evaluate and return the value of the watcher.
+ * This only gets called for computed property watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
+  if (this.dirty) {
+    this.value = this.get();
+    this.dirty = false;
+  }
+  return this.value
 };
 
 /**
- * Depend on all deps collected by this watcher.
+ * Depend on this watcher. Only for computed property watchers.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
+  if (this.dep && Dep.target) {
+    this.dep.depend();
   }
 };
 
@@ -3419,7 +3446,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { lazy: true };
+var computedWatcherOptions = { computed: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3499,13 +3526,8 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
+      watcher.depend();
+      return watcher.evaluate()
     }
   }
 }
@@ -4109,12 +4131,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4126,9 +4143,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4286,16 +4301,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4310,10 +4321,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
@@ -4644,8 +4669,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5084,7 +5107,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.16';
+Vue.version = '2.5.17-beta.0';
 
 /*  */
 
@@ -5601,7 +5624,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -5609,6 +5632,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6072,7 +6096,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6084,7 +6108,7 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
@@ -6120,7 +6144,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6129,7 +6153,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6164,8 +6188,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -7819,6 +7843,23 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -7862,17 +7903,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index a78cbb354c3..e48a727a319 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -797,6 +797,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -975,10 +976,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -1902,7 +1903,7 @@ var initProxy;
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
+      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
       if (!has && !isAllowed) {
         warnNonPresent(target, key);
       }
@@ -2641,9 +2642,6 @@ function initLifecycle (vm) {
 function lifecycleMixin (Vue) {
   Vue.prototype._update = function (vnode, hydrating) {
     var vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
     var prevActiveInstance = activeInstance;
@@ -2653,14 +2651,7 @@ function lifecycleMixin (Vue) {
     // based on the rendering backend used.
     if (!prevVnode) {
       // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
     } else {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
@@ -2788,7 +2779,13 @@ function mountComponent (
   // we set this to vm._watcher inside the watcher's constructor
   // since the watcher's initial patch may call $forceUpdate (e.g. inside child
   // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, null, true /* isRenderWatcher */);
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
   hydrating = false;
 
   // manually mounted instance, call mounted on self
@@ -2972,6 +2969,9 @@ function flushSchedulerQueue () {
   // as we run existing watchers
   for (index = 0; index < queue.length; index++) {
     watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
     id = watcher.id;
     has[id] = null;
     watcher.run();
@@ -3091,15 +3091,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.lazy = !!options.lazy;
+    this.computed = !!options.computed;
     this.sync = !!options.sync;
+    this.before = options.before;
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    this.deep = this.user = this.computed = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
+  this.dirty = this.computed; // for computed watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3120,9 +3121,12 @@ var Watcher = function Watcher (
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
+  if (this.computed) {
+    this.value = undefined;
+    this.dep = new Dep();
+  } else {
+    this.value = this.get();
+  }
 };
 
 /**
@@ -3194,9 +3198,27 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
+    var this$1 = this;
+
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
+  if (this.computed) {
+    // A computed property watcher has two modes: lazy and activated.
+    // It initializes as lazy by default, and only becomes activated when
+    // it is depended on by at least one subscriber, which is typically
+    // another computed property or a component's render function.
+    if (this.dep.subs.length === 0) {
+      // In lazy mode, we don't want to perform computations until necessary,
+      // so we simply mark the watcher as dirty. The actual computation is
+      // performed just-in-time in this.evaluate() when the computed property
+      // is accessed.
+      this.dirty = true;
+    } else {
+      // In activated mode, we want to proactively perform the computation
+      // but only notify our subscribers when the value has indeed changed.
+      this.getAndInvoke(function () {
+        this$1.dep.notify();
+      });
+    }
   } else if (this.sync) {
     this.run();
   } else {
@@ -3210,49 +3232,54 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
+    this.getAndInvoke(this.cb);
+  }
+};
+
+Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
+  var value = this.get();
+  if (
+    value !== this.value ||
+    // Deep watchers and watchers on Object/Arrays should fire even
+    // when the value is the same, because the value may
+    // have mutated.
+    isObject(value) ||
+    this.deep
+  ) {
+    // set new value
+    var oldValue = this.value;
+    this.value = value;
+    this.dirty = false;
+    if (this.user) {
+      try {
+        cb.call(this.vm, value, oldValue);
+      } catch (e) {
+        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
       }
+    } else {
+      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
+ * Evaluate and return the value of the watcher.
+ * This only gets called for computed property watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
+  if (this.dirty) {
+    this.value = this.get();
+    this.dirty = false;
+  }
+  return this.value
 };
 
 /**
- * Depend on all deps collected by this watcher.
+ * Depend on this watcher. Only for computed property watchers.
  */
 Watcher.prototype.depend = function depend () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    this$1.deps[i].depend();
+  if (this.dep && Dep.target) {
+    this.dep.depend();
   }
 };
 
@@ -3415,7 +3442,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { lazy: true };
+var computedWatcherOptions = { computed: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3495,13 +3522,8 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
+      watcher.depend();
+      return watcher.evaluate()
     }
   }
 }
@@ -4103,12 +4125,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -4120,9 +4137,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -4280,16 +4295,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -4304,10 +4315,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
@@ -4631,8 +4656,6 @@ function initInternalComponent (vm, options) {
   var parentVnode = options._parentVnode;
   opts.parent = options.parent;
   opts._parentVnode = parentVnode;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
 
   var vnodeComponentOptions = parentVnode.componentOptions;
   opts.propsData = vnodeComponentOptions.propsData;
@@ -5071,7 +5094,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.16';
+Vue.version = '2.5.17-beta.0';
 
 /*  */
 
@@ -5588,7 +5611,7 @@ function createPatchFunction (backend) {
     if (isDef(i)) {
       var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
       if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
+        i(vnode, false /* hydrating */);
       }
       // after calling the init hook, if the vnode is a child component
       // it should've created a child instance and mounted it. the child
@@ -5596,6 +5619,7 @@ function createPatchFunction (backend) {
       // in that case we can just return the element and be done.
       if (isDef(vnode.componentInstance)) {
         initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
         if (isTrue(isReactivated)) {
           reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
         }
@@ -6059,7 +6083,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
     if (isUndef(vnode)) {
       if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
       return
@@ -6071,7 +6095,7 @@ function createPatchFunction (backend) {
     if (isUndef(oldVnode)) {
       // empty mount (likely as component), create new root element
       isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
+      createElm(vnode, insertedVnodeQueue);
     } else {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
@@ -6107,7 +6131,7 @@ function createPatchFunction (backend) {
 
         // replacing existing element
         var oldElm = oldVnode.elm;
-        var parentElm$1 = nodeOps.parentNode(oldElm);
+        var parentElm = nodeOps.parentNode(oldElm);
 
         // create new node
         createElm(
@@ -6116,7 +6140,7 @@ function createPatchFunction (backend) {
           // extremely rare edge case: do not insert if old element is in a
           // leaving transition. Only happens when combining transition +
           // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm$1,
+          oldElm._leaveCb ? null : parentElm,
           nodeOps.nextSibling(oldElm)
         );
 
@@ -6151,8 +6175,8 @@ function createPatchFunction (backend) {
         }
 
         // destroy old node
-        if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
@@ -7806,6 +7830,23 @@ delete props.mode;
 var TransitionGroup = {
   props: props,
 
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
   render: function render (h) {
     var tag = this.tag || this.$vnode.data.tag || 'span';
     var map = Object.create(null);
@@ -7849,17 +7890,6 @@ var TransitionGroup = {
     return h(tag, null, children)
   },
 
-  beforeUpdate: function beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
   updated: function updated () {
     var children = this.prevChildren;
     var moveClass = this.moveClass || ((this.name || 'v') + '-move');
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 2484d1aefb1..f48d75153df 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.16
+ * Vue.js v2.5.17-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";var y=Object.freeze({});function L(t){return null==t}function N(t){return null!=t}function S(t){return!0===t}function E(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function M(t){return null!==t&&"object"==typeof t}var r=Object.prototype.toString;function u(t){return"[object Object]"===r.call(t)}function o(t){var e=parseFloat(String(t));return 0<=e&&Math.floor(e)===e&&isFinite(t)}function e(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function F(t){var e=parseFloat(t);return isNaN(e)?t:e}function s(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}s("slot,component",!0);var c=s("key,ref,slot,slot-scope,is");function l(t,e){if(t.length){var 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s=N(t.nodeType);if(!s&&Gn(t,e))$(t,e,a,r);else{if(s){if(1===t.nodeType&&t.hasAttribute(I)&&(t.removeAttribute(I),n=!0),S(n)&&O(t,e,a))return x(e,a,!0),t;o=t,t=new ct(y.tagName(o).toLowerCase(),{},[],void 0,o)}var c=t.elm,u=y.parentNode(c);if(g(e,a,c._leaveCb?null:u,y.nextSibling(c)),N(e.parent))for(var l=e.parent,f=_(e);l;){for(var p=0;p<m.destroy.length;++p)m.destroy[p](l);if(l.elm=e.elm,f){for(var d=0;d<m.create.length;++d)m.create[d](Kn,l);var v=l.data.hook.insert;if(v.merged)for(var h=1;h<v.fns.length;h++)v.fns[h]()}else qn(l);l=l.parent}N(u)?A(0,[t],0,0):N(t.tag)&&C(t)}}return x(e,a,i),e.elm}N(t)&&C(t)}}({nodeOps:Wn,modules:[ar,ur,hr,yr,Sr,U?{create:Yr,activate:Yr,remove:function(t,e){!0!==t.data.show?Jr(t,e):e()}}:{}].concat(nr)});z&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&co(t,"input")});var eo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){eo.componentUpdated(t,e,n)}):no(t,e,n.context),t._vOptions=[].map.call(t.options,io)):("textarea"===n.tag||Hn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",ao),t.addEventListener("compositionend",so),t.addEventListener("change",so),z&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){no(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,io);if(o.some(function(t,e){return!w(t,r[e])}))(t.multiple?e.value.some(function(t){return oo(t,o)}):e.value!==e.oldValue&&oo(e.value,o))&&co(t,"change")}}};function no(t,e,n){ro(t,e,n),(W||q)&&setTimeout(function(){ro(t,e,n)},0)}function ro(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=-1<$(r,io(a)),a.selected!==i&&(a.selected=i);else if(w(io(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function oo(e,t){return t.every(function(t){return!w(t,e)})}function io(t){return"_value"in t?t._value:t.value}function ao(t){t.target.composing=!0}function so(t){t.target.composing&&(t.target.composing=!1,co(t.target,"input"))}function co(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function uo(t){return!t.componentInstance||t.data&&t.data.transition?t:uo(t.componentInstance._vnode)}var lo={model:eo,show:{bind:function(t,e,n){var r=e.value,o=(n=uo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Gr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=uo(n)).data&&n.data.transition?(n.data.show=!0,r?Gr(n,function(){t.style.display=t.__vOriginalDisplay}):Jr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},fo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function po(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?po(ce(e.children)):t}function vo(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[p(i)]=o[i];return e}function ho(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var mo={name:"transition",props:fo,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(function(t){return t.tag||se(t)})).length){var r=this.mode,o=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return o;var i=po(o);if(!i)return o;if(this._leaving)return ho(t,o);var a="__transition-"+this._uid+"-";i.key=null==i.key?i.isComment?a+"comment":a+i.tag:j(i.key)?0===String(i.key).indexOf(a)?i.key:a+i.key:i.key;var s,c,u=(i.data||(i.data={})).transition=vo(this),l=this._vnode,f=po(l);if(i.data.directives&&i.data.directives.some(function(t){return"show"===t.name})&&(i.data.show=!0),f&&f.data&&(s=i,(c=f).key!==s.key||c.tag!==s.tag)&&!se(f)&&(!f.componentInstance||!f.componentInstance._vnode.isComment)){var p=f.data.transition=m({},u);if("out-in"===r)return this._leaving=!0,ne(p,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),ho(t,o);if("in-out"===r){if(se(i))return l;var d,v=function(){d()};ne(u,"afterEnter",v),ne(u,"enterCancelled",v),ne(p,"delayLeave",function(t){d=t})}}return o}}},yo=m({tag:String,moveClass:String},fo);function go(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function _o(t){t.data.newPos=t.elm.getBoundingClientRect()}function bo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete yo.mode;var Co={Transition:mo,TransitionGroup:{props:yo,beforeMount:function(){var n=this,r=this._update;this._update=function(t,e){n.__patch__(n._vnode,n.kept,!1,!0),n._vnode=n.kept,r.call(n,t,e)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=vo(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),((n[c.key]=c).data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,r=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,r)&&(t.forEach(go),t.forEach(_o),t.forEach(bo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,e=n.style;Br(n,r),e.transform=e.WebkitTransform=e.transitionDuration="",n.addEventListener(Mr,n._moveCb=function t(e){e&&!/transform$/.test(e.propertyName)||(n.removeEventListener(Mr,t),n._moveCb=null,Hr(n,r))})}}))},methods:{hasMove:function(t,e){if(!Dr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Ir(n,t)}),jr(n,e),n.style.display="none",this.$el.appendChild(n);var r=qr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return hn.config.mustUseProp=function(t,e,n){return"value"===n&&On(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},hn.config.isReservedTag=Vn,hn.config.isReservedAttr=kn,hn.config.getTagNamespace=function(t){return Un(t)?"svg":"math"===t?"math":void 0},hn.config.isUnknownElement=function(t){if(!U)return!0;if(Vn(t))return!1;if(t=t.toLowerCase(),null!=Bn[t])return Bn[t];var e=document.createElement(t);return-1<t.indexOf("-")?Bn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Bn[t]=/HTMLUnknownElement/.test(e.toString())},m(hn.options.directives,lo),m(hn.options.components,Co),hn.prototype.__patch__=U?to:b,hn.prototype.$mount=function(t,e){return t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,r=t,o=e,(n=this).$el=r,n.$options.render||(n.$options.render=lt),ge(n,"beforeMount"),new Oe(n,function(){n._update(n._render(),o)},b,{before:function(){n._isMounted&&ge(n,"beforeUpdate")}},!0),o=!1,null==n.$vnode&&(n._isMounted=!0,ge(n,"mounted")),n;var n,r,o},U&&setTimeout(function(){O.devtools&&Q&&Q.emit("init",hn)},0),hn});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index c462e7cf26f..6fd2351a6c8 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -531,6 +531,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -1119,10 +1120,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -4560,7 +4561,8 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
@@ -7400,12 +7402,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -7417,9 +7414,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -7577,16 +7572,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -7601,10 +7592,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 1a8a8b2a93c..8b11274387e 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -533,6 +533,7 @@ function cloneVNode (vnode) {
   cloned.fnContext = vnode.fnContext;
   cloned.fnOptions = vnode.fnOptions;
   cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
   cloned.isCloned = true;
   return cloned
 }
@@ -1121,10 +1122,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -4303,7 +4304,8 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
@@ -7145,12 +7147,7 @@ function mergeProps (to, from) {
 
 // inline hooks to be invoked on component VNodes during patch
 var componentVNodeHooks = {
-  init: function init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
+  init: function init (vnode, hydrating) {
     if (
       vnode.componentInstance &&
       !vnode.componentInstance._isDestroyed &&
@@ -7162,9 +7159,7 @@ var componentVNodeHooks = {
     } else {
       var child = vnode.componentInstance = createComponentInstanceForVnode(
         vnode,
-        activeInstance,
-        parentElm,
-        refElm
+        activeInstance
       );
       child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
@@ -7322,16 +7317,12 @@ function createComponent (
 
 function createComponentInstanceForVnode (
   vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
+  parent // activeInstance in lifecycle state
 ) {
   var options = {
     _isComponent: true,
-    parent: parent,
     _parentVnode: vnode,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
+    parent: parent
   };
   // check inline-template render functions
   var inlineTemplate = vnode.data.inlineTemplate;
@@ -7346,10 +7337,24 @@ function installComponentHooks (data) {
   var hooks = data.hook || (data.hook = {});
   for (var i = 0; i < hooksToMerge.length; i++) {
     var key = hooksToMerge[i];
-    hooks[key] = componentVNodeHooks[key];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
   }
 }
 
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
 // transform component v-model info (value and callback) into
 // prop and event handler respectively.
 function transformModel (options, data) {
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index b0369169d5a..bb3eefe05cb 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.16",
+  "version": "2.5.17-beta.0",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 3e099caf13e..14121fd119c 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -1299,10 +1299,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -3803,7 +3803,8 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index dbffc8e2a0c..3456829f17b 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -1256,10 +1256,10 @@ function defineReactive (
 
   // cater for pre-defined getter/setters
   var getter = property && property.get;
-  if (!getter && arguments.length === 2) {
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
     val = obj[key];
   }
-  var setter = property && property.set;
 
   var childOb = !shallow && observe(val);
   Object.defineProperty(obj, key, {
@@ -3405,7 +3405,8 @@ var keyCodes = {
 
 // KeyboardEvent.key aliases
 var keyNames = {
-  esc: 'Escape',
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
   space: ' ',
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 93e5c526d92..a3d3192182d 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.16",
+  "version": "2.5.17-beta.0",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 19552a82a636910f4595937141557305ab5d434e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 23 Mar 2018 19:29:02 -0400
Subject: [PATCH 469/911] build: release 2.5.17-beta.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 63da803a6e1..2c969bee6c4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.16",
+  "version": "2.5.17-beta.0",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From ee1a36820e3097ed23a114a70a1a87f2aea7456e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 2 Apr 2018 09:18:19 -0400
Subject: [PATCH 470/911] chore: update sponsor

---
 BACKERS.md | 5 -----
 README.md  | 5 -----
 2 files changed, 10 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index ca9a4de7366..7636120ed27 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -54,11 +54,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
-        </a>
-      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 0a3642ea118..3028e5c8c63 100644
--- a/README.md
+++ b/README.md
@@ -66,11 +66,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.datacamp.com/careers?utm_source=vuejs&utm_medium=sidebar" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/datacamp.png">
-        </a>
-      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 805a4fd67602f1ac2a063284c4e2ce35be07815e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 3 Apr 2018 11:19:43 -0400
Subject: [PATCH 471/911] chore: new sponsor

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 7636120ed27..af78d45c4d0 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -54,6 +54,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://vehikl.com/" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vehikl.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 3028e5c8c63..9eebbd33e93 100644
--- a/README.md
+++ b/README.md
@@ -66,6 +66,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://vehikl.com/" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vehikl.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From ae6dcd63a017059644502f8741d8a514f3e9cf84 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 4 Apr 2018 20:08:12 -0400
Subject: [PATCH 472/911] fix(ssr): remove trailing hash in webpack module
 identifier when generating client manifest

---
 src/server/webpack-plugin/client.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/server/webpack-plugin/client.js b/src/server/webpack-plugin/client.js
index 5f2cd4bd6c6..d1acdb68d80 100644
--- a/src/server/webpack-plugin/client.js
+++ b/src/server/webpack-plugin/client.js
@@ -43,7 +43,8 @@ export default class VueSSRClientPlugin {
           if (!chunk || !chunk.files) {
             return
           }
-          const files = manifest.modules[hash(m.identifier)] = chunk.files.map(fileToIndex)
+          const id = m.identifier.replace(/\s\w+$/, '') // remove appended hash
+          const files = manifest.modules[hash(id)] = chunk.files.map(fileToIndex)
           // find all asset modules associated with the same chunk
           assetModules.forEach(m => {
             if (m.chunks.some(id => id === cid)) {

From 575b6e77ab82b0bbc581aec3ea9b07135d2d1fcd Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Sat, 7 Apr 2018 12:22:22 +0800
Subject: [PATCH 473/911] fix(ssr): render initial and used async css chunks
 (#7902)

compatibility with webpack 4 + mini CSS extraction

close #7897
---
 src/server/template-renderer/index.js | 14 +++++++-------
 src/server/webpack-plugin/client.js   |  6 +++---
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index dabc08a149c..a6a1570c6b7 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -108,13 +108,13 @@ export default class TemplateRenderer {
   }
 
   renderStyles (context: Object): string {
-    const cssFiles = this.clientManifest
-      ? this.clientManifest.all.filter(isCSS)
-      : []
+    const initial = this.preloadFiles || []
+    const async = this.getUsedAsyncFiles(context) || []
+    const cssFiles = initial.concat(async).filter(({ file }) => isCSS(file))
     return (
       // render links for css files
       (cssFiles.length
-        ? cssFiles.map(file => `<link rel="stylesheet" href="${this.publicPath}/${file}">`).join('')
+        ? cssFiles.map(({ file }) => `<link rel="stylesheet" href="${this.publicPath}/${file}">`).join('')
         : '') +
       // context.styles is a getter exposed by vue-style-loader which contains
       // the inline component styles collected during SSR
@@ -202,10 +202,10 @@ export default class TemplateRenderer {
 
   renderScripts (context: Object): string {
     if (this.clientManifest) {
-      const initial = this.preloadFiles
-      const async = this.getUsedAsyncFiles(context)
+      const initial = this.preloadFiles.filter(({ file }) => isJS(file))
+      const async = (this.getUsedAsyncFiles(context) || []).filter(({ file }) => isJS(file))
       const needed = [initial[0]].concat(async || [], initial.slice(1))
-      return needed.filter(({ file }) => isJS(file)).map(({ file }) => {
+      return needed.map(({ file }) => {
         return `<script src="${this.publicPath}/${file}" defer></script>`
       }).join('')
     } else {
diff --git a/src/server/webpack-plugin/client.js b/src/server/webpack-plugin/client.js
index d1acdb68d80..6f77b863b20 100644
--- a/src/server/webpack-plugin/client.js
+++ b/src/server/webpack-plugin/client.js
@@ -1,6 +1,6 @@
 const hash = require('hash-sum')
 const uniq = require('lodash.uniq')
-import { isJS } from './util'
+import { isJS, isCSS } from './util'
 
 export default class VueSSRClientPlugin {
   constructor (options = {}) {
@@ -19,10 +19,10 @@ export default class VueSSRClientPlugin {
       const initialFiles = uniq(Object.keys(stats.entrypoints)
         .map(name => stats.entrypoints[name].assets)
         .reduce((assets, all) => all.concat(assets), [])
-        .filter(isJS))
+        .filter((file) => isJS(file) || isCSS(file)))
 
       const asyncFiles = allFiles
-        .filter(isJS)
+        .filter((file) => isJS(file) || isCSS(file))
         .filter(file => initialFiles.indexOf(file) < 0)
 
       const manifest = {

From ef0b25097957ae9ef9970be732d6e65cc78902e9 Mon Sep 17 00:00:00 2001
From: Pooya Parsa <pyapar@gmail.com>
Date: Sat, 7 Apr 2018 08:53:59 +0430
Subject: [PATCH 474/911] feat(server, webpack-plugin): webpack 4 support
 (#7839)

SSR webpack 4 compat
---
 src/server/webpack-plugin/client.js |  4 ++--
 src/server/webpack-plugin/server.js |  4 ++--
 src/server/webpack-plugin/util.js   | 10 ++++++++++
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/server/webpack-plugin/client.js b/src/server/webpack-plugin/client.js
index 6f77b863b20..4d9b6813031 100644
--- a/src/server/webpack-plugin/client.js
+++ b/src/server/webpack-plugin/client.js
@@ -1,6 +1,6 @@
 const hash = require('hash-sum')
 const uniq = require('lodash.uniq')
-import { isJS, isCSS } from './util'
+import { isJS, isCSS, onEmit } from './util'
 
 export default class VueSSRClientPlugin {
   constructor (options = {}) {
@@ -10,7 +10,7 @@ export default class VueSSRClientPlugin {
   }
 
   apply (compiler) {
-    compiler.plugin('emit', (compilation, cb) => {
+    onEmit(compiler, 'vue-client-plugin', (compilation, cb) => {
       const stats = compilation.getStats().toJson()
 
       const allFiles = uniq(stats.assets
diff --git a/src/server/webpack-plugin/server.js b/src/server/webpack-plugin/server.js
index 8ffa58b03ee..a9a38337411 100644
--- a/src/server/webpack-plugin/server.js
+++ b/src/server/webpack-plugin/server.js
@@ -1,4 +1,4 @@
-import { validate, isJS } from './util'
+import { validate, isJS, onEmit } from './util'
 
 export default class VueSSRServerPlugin {
   constructor (options = {}) {
@@ -10,7 +10,7 @@ export default class VueSSRServerPlugin {
   apply (compiler) {
     validate(compiler)
 
-    compiler.plugin('emit', (compilation, cb) => {
+    onEmit(compiler, 'vue-server-plugin', (compilation, cb) => {
       const stats = compilation.getStats().toJson()
       const entryName = Object.keys(stats.entrypoints)[0]
       const entryInfo = stats.entrypoints[entryName]
diff --git a/src/server/webpack-plugin/util.js b/src/server/webpack-plugin/util.js
index d22e4b2c497..94a204a22b2 100644
--- a/src/server/webpack-plugin/util.js
+++ b/src/server/webpack-plugin/util.js
@@ -21,4 +21,14 @@ export const validate = compiler => {
   }
 }
 
+export const onEmit = (compiler, name, hook) => {
+  if (compiler.hooks) {
+    // Webpack >= 4.0.0
+    compiler.hooks.emit.tapAsync(name, hook)
+  } else {
+    // Webpack < 4.0.0
+    compiler.plugin('emit', hook)
+  }
+}
+
 export { isJS, isCSS } from '../util'

From 62265035c0c400ad6ec213541dd7cca58dd71f6e Mon Sep 17 00:00:00 2001
From: Zhenfei You <hello@imyzf.com>
Date: Sat, 7 Apr 2018 12:24:23 +0800
Subject: [PATCH 475/911] feat(weex): support object syntax of class (#7930)

---
 src/platforms/weex/runtime/modules/class.js | 39 +++++++-------
 test/weex/cases/cases.spec.js               |  1 +
 test/weex/cases/render/class.vdom.js        | 19 +++++++
 test/weex/cases/render/class.vue            | 56 +++++++++++++++++++++
 4 files changed, 95 insertions(+), 20 deletions(-)
 create mode 100644 test/weex/cases/render/class.vdom.js
 create mode 100644 test/weex/cases/render/class.vue

diff --git a/src/platforms/weex/runtime/modules/class.js b/src/platforms/weex/runtime/modules/class.js
index 029b9e9ed2f..47620552346 100755
--- a/src/platforms/weex/runtime/modules/class.js
+++ b/src/platforms/weex/runtime/modules/class.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { extend } from 'shared/util'
+import { extend, isObject } from 'shared/util'
 
 function updateClass (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   const el = vnode.elm
@@ -15,25 +15,8 @@ function updateClass (oldVnode: VNodeWithData, vnode: VNodeWithData) {
     return
   }
 
-  const oldClassList = []
-  // unlike web, weex vnode staticClass is an Array
-  const oldStaticClass: any = oldData.staticClass
-  if (oldStaticClass) {
-    oldClassList.push.apply(oldClassList, oldStaticClass)
-  }
-  if (oldData.class) {
-    oldClassList.push.apply(oldClassList, oldData.class)
-  }
-
-  const classList = []
-  // unlike web, weex vnode staticClass is an Array
-  const staticClass: any = data.staticClass
-  if (staticClass) {
-    classList.push.apply(classList, staticClass)
-  }
-  if (data.class) {
-    classList.push.apply(classList, data.class)
-  }
+  const oldClassList = makeClassList(oldData)
+  const classList = makeClassList(data)
 
   if (typeof el.setClassList === 'function') {
     el.setClassList(classList)
@@ -49,6 +32,22 @@ function updateClass (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   }
 }
 
+function makeClassList (data: VNodeData): Array<string> {
+  const classList = []
+  // unlike web, weex vnode staticClass is an Array
+  const staticClass: any = data.staticClass
+  const dataClass = data.class
+  if (staticClass) {
+    classList.push.apply(classList, staticClass)
+  }
+  if (Array.isArray(dataClass)) {
+    classList.push.apply(classList, dataClass)
+  } else if (isObject(dataClass)) {
+    classList.push.apply(classList, Object.keys(dataClass).filter(className => dataClass[className]))
+  }
+  return classList
+}
+
 function getStyle (oldClassList: Array<string>, classList: Array<string>, ctx: Component): Object {
   // style is a weex-only injected object
   // compiled from <style> tags in weex files
diff --git a/test/weex/cases/cases.spec.js b/test/weex/cases/cases.spec.js
index ad7ff7393df..f02ea217b70 100644
--- a/test/weex/cases/cases.spec.js
+++ b/test/weex/cases/cases.spec.js
@@ -54,6 +54,7 @@ function createEventTestCase (name) {
 describe('Usage', () => {
   describe('render', () => {
     it('sample', createRenderTestCase('render/sample'))
+    it('class', createRenderTestCase('render/class'))
   })
 
   describe('event', () => {
diff --git a/test/weex/cases/render/class.vdom.js b/test/weex/cases/render/class.vdom.js
new file mode 100644
index 00000000000..7dec4ab57a9
--- /dev/null
+++ b/test/weex/cases/render/class.vdom.js
@@ -0,0 +1,19 @@
+({
+  type: 'div',
+  children: [{
+    type: 'div',
+    classList: ['box', 'box1']
+  }, {
+    type: 'div',
+    classList: ['box', 'box2']
+  }, {
+    type: 'div',
+    classList: ['box', 'box3']
+  }, {
+    type: 'div',
+    classList: ['box', 'box4']
+  }, {
+    type: 'div',
+    classList: ['box', 'box5']
+  }]
+})
diff --git a/test/weex/cases/render/class.vue b/test/weex/cases/render/class.vue
new file mode 100644
index 00000000000..f4443c50dd2
--- /dev/null
+++ b/test/weex/cases/render/class.vue
@@ -0,0 +1,56 @@
+<template>
+  <div>
+    <div :class="class1"></div>
+    <div :class="class2"></div>
+    <div class="box" :class="class3"></div>
+    <div class="box" :class="class4"></div>
+    <div class="box" :class="{ box5: class5 }"></div>
+  </div>
+</template>
+
+<style scoped>
+  .box {
+    width: 100px;
+    height: 100px;
+  }
+
+  .box1 {
+    background-color: #DDD;
+  }
+
+  .box2 {
+    background-color: #CCC;
+  }
+
+  .box3 {
+    background-color: #BBB;
+  }
+
+  .box4 {
+    background-color: #AAA;
+  }
+
+  .box5 {
+    background-color: #999;
+  }
+</style>
+
+<script>
+  module.exports = {
+    data () {
+      return {
+        class1: ['box', 'box1'],
+        class2: {
+          'box': true,
+          'box1': false,
+          'box2': true
+        },
+        class3: ['box3'],
+        class4: {
+          'box4': true
+        },
+        class5: true
+      }
+    }
+  }
+</script>
\ No newline at end of file

From 38d5459e109a83b4992168c673403503278ff3c1 Mon Sep 17 00:00:00 2001
From: jonkofee <jonkofee@icloud.com>
Date: Tue, 10 Apr 2018 19:34:58 +0300
Subject: [PATCH 476/911] chore: use reactive components count in benchmark
 (#7996)

---
 benchmarks/reorder-list/index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/benchmarks/reorder-list/index.html b/benchmarks/reorder-list/index.html
index 81b5a26d0d8..668160b0719 100644
--- a/benchmarks/reorder-list/index.html
+++ b/benchmarks/reorder-list/index.html
@@ -15,7 +15,7 @@
 
     <script type="text/x-template" id="t">
       <div>
-        <h1>{{ total }} Components</h1>
+        <h1>{{ items.length }} Components</h1>
         <p>{{ action }} took {{time}}ms.</p>
         <button @click="shuffle">shuffle</button>
         <button @click="add">add</button>

From 8cc7eaeadd00529e687920f9b837b01a9e96de54 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 12 Apr 2018 09:01:56 -0400
Subject: [PATCH 477/911] chore: update sponsors

---
 BACKERS.md | 10 ++++++++++
 README.md  | 10 ++++++++++
 2 files changed, 20 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index af78d45c4d0..9e4555cefec 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -159,6 +159,16 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsguru.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://aaha.co/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 9eebbd33e93..53ef03081e2 100644
--- a/README.md
+++ b/README.md
@@ -166,6 +166,16 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsguru.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://aaha.co/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 97f113e7b548d9de252f1f02c0d93b58ec4b0bd6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 24 Apr 2018 09:38:37 -0400
Subject: [PATCH 478/911] chore: update sponsors

---
 BACKERS.md | 9 ++-------
 README.md  | 9 ++-------
 2 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 9e4555cefec..4884c85b6d6 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -29,8 +29,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://xiaozhuanlan.com" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+        <a href="https://www.bmqb.com/jobs" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
         </a>
       </td>
     </tr><tr></tr>
@@ -139,11 +139,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
     </tr><tr></tr>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://www.bmqb.com/jobs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bmqb.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://codepilot.ai" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
diff --git a/README.md b/README.md
index 53ef03081e2..5519e2f2a2e 100644
--- a/README.md
+++ b/README.md
@@ -39,8 +39,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://xiaozhuanlan.com" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/xiaozhuanlan.png">
+        <a href="https://www.bmqb.com/jobs" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
         </a>
       </td>
     </tr><tr></tr>
@@ -146,11 +146,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
     </tr><tr></tr>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://www.bmqb.com/jobs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bmqb.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://codepilot.ai" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">

From 1ff51be93c86c72f7a76c0478d22b11055bb8bf8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 25 Apr 2018 16:13:50 -0400
Subject: [PATCH 479/911] chore: new sponsor

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 4884c85b6d6..e30fd01d8fc 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -164,6 +164,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.nsoft.com/careers/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nsoft.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 5519e2f2a2e..8b1ff59f1b9 100644
--- a/README.md
+++ b/README.md
@@ -171,6 +171,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.nsoft.com/careers/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nsoft.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 1abb944a71c13542a7203ac6beccb89def641a37 Mon Sep 17 00:00:00 2001
From: Alexander <gavrashenko@gmail.com>
Date: Thu, 26 Apr 2018 15:14:16 +0300
Subject: [PATCH 480/911] chore(typo): no dots at the end of the comments
 (#8087)

---
 flow/compiler.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index a3dc1c920fd..a5f3304de52 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -173,7 +173,7 @@ declare type ASTText = {
 
 // SFC-parser related declarations
 
-// an object format describing a single-file component.
+// an object format describing a single-file component
 declare type SFCDescriptor = {
   template: ?SFCBlock;
   script: ?SFCBlock;

From 654e5f153dc88ee5fc853af6df178c4fc24abe98 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 30 Apr 2018 16:15:11 -0400
Subject: [PATCH 481/911] chore: new sponsor

---
 BACKERS.md | 7 +++++++
 README.md  | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index e30fd01d8fc..904679a48d4 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -170,6 +170,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.pubnub.com/vue-js/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/pubnub.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index 8b1ff59f1b9..6cabf8f78b3 100644
--- a/README.md
+++ b/README.md
@@ -177,6 +177,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.pubnub.com/vue-js/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/pubnub.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From 5e3823a5766da1df60481e1e7a20f36d08e716ce Mon Sep 17 00:00:00 2001
From: Sean Larkin <sean.larkin@cuw.edu>
Date: Wed, 2 May 2018 16:28:04 -0500
Subject: [PATCH 482/911] chore(package.json): Add sideEffects: false field in
 package.json (#8099)

---
 package.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package.json b/package.json
index 2c969bee6c4..c9b82b9bab9 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
     "dist/*.js",
     "types/*.d.ts"
   ],
+  "sideEffects": false,
   "scripts": {
     "dev": "rollup -w -c scripts/config.js --environment TARGET:web-full-dev",
     "dev:cjs": "rollup -w -c scripts/config.js --environment TARGET:web-runtime-cjs",

From bb953435afc4086d66d93b76bcaac2d1144f1e8d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Jun 2018 16:42:41 -0400
Subject: [PATCH 483/911] chore: update sponsors

---
 BACKERS.md | 50 +++++++++++++++++++++++++++++++++++++-------------
 README.md  |  5 +++++
 2 files changed, 42 insertions(+), 13 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 904679a48d4..bcdd5c0f9f5 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -176,6 +176,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/pubnub.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.vuemastery.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
@@ -199,6 +204,20 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 - Matt Mullenweg
 
+<!--silver start-->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://dopamine.bg/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dopamine.png">
+        </a>
+      </td>
+    </tr><tr></tr>
+  </tbody>
+</table>
+<!--silver end-->
+
 <h2 align="center">Bronze via Patreon</h2>
 
 <!--bronze start-->
@@ -270,9 +289,10 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - errorrik 
 - Alex Balashov
 - Konstantin Levinski
-- Samuel Smith
 - tjkoury 
 - Evan Leonardi
+- Ernest Sim
+- Blaise Laflamme
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -288,7 +308,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Benjamin Listwon
 - Lars Andreas Ness
 - Victor Tolbert
-- Frank Dugan III
 - Stephen Hartley
 - Wen-Tien Chang
 - Kirk Lewis
@@ -298,7 +317,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
-- Milos Stojanovic
 - 4 
 - The Graphic Design School
 - Christian Griffith
@@ -309,6 +327,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - David Hess
 - Niannian Modisette
 - Dariusz Jastrzębski
+- Ivan Sieder
 - Matt Jones
 - Dave Chenell
 - Duncan J Kenzie
@@ -317,30 +336,25 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Edithvale 
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
-- Chengzhi Yin
 - Zoran Knezevic
-- John Bergloff
 - James Simpson
 - Pascal Germain
 - Pierre Vanhulst
-- Vincent Gabriel
-- Chris Anderson
 - Jon Hobbs-Smith
 - Akiho Nagao
 - Asaf Yishai
 - Estebe Anthony
 - Haim Yulzari
-- David McGuigan
 - Jeremy Tan
 - Jim Raden
 - Fille Åström
 - Nicholas Reid
+- Samuel Smith
 - Tyler Scott
 - Thong Yong Jun
 - Tai Shi Lgin
 - Bryan Gruneberg
 - Roman Kuba
-- Familiar Studio
 - Matias Verdier
 - Jamie McElwain
 - Vivekanandhan Natarajan
@@ -355,27 +369,37 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Brian Jorden
 - Cliff Hess
 - Joe Ray Gregory
-- Orney Enrique martinez Said
-- Tom Striker
 - Oskar Lindgren
 - RADD Creative
 - Rua Cura D'ars
 - Richard Simpson
 - Charles McKeever
 - Alok Pant
+- Sandro Das Neves
 - Jessie Hernandez
 - Eric Fong
 - Aparajita Fishman
-- Cheyenne Arrowsmith
 - Romain Lienard
 - Bohdan Kokotko
-- François Forest
 - Donald Fischer
 - Alexander Weiher
 - Daniel Cook
 - Shinya Katayama
 - Brendan Long
 - Jere Sjöroos
+- Wakana Seki
+- David Ang
+- David Rowthorn
+- Dom 
+- Ben Hong
+- David Kaplan
+- John Cleveland
+- Jaeyoung Lee
+- Amor 
+- Tom Ootes
+- Andy Foster
+- Blake Campbell
+- David Nunn
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 6cabf8f78b3..cc2bd5ca8c5 100644
--- a/README.md
+++ b/README.md
@@ -183,6 +183,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/pubnub.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.vuemastery.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 52719ccab8fccffbdf497b96d3731dc86f04c1ce Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Jun 2018 16:54:26 -0400
Subject: [PATCH 484/911] chore: sponsor cleanup

---
 BACKERS.md | 30 ++++--------------------------
 README.md  | 30 ++++--------------------------
 2 files changed, 8 insertions(+), 52 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index bcdd5c0f9f5..70c11dd5619 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -90,11 +90,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://anymod.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.frontenddeveloperlove.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
@@ -105,13 +100,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://vuetifyjs.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://neds.com.au/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
@@ -132,13 +127,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://leanpub.com/vuejs2" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://codepilot.ai" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
@@ -149,11 +137,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://jsguru.io/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsguru.png">
-        </a>
-      </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://aaha.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
@@ -169,13 +154,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nsoft.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://www.pubnub.com/vue-js/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/pubnub.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.vuemastery.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">
diff --git a/README.md b/README.md
index cc2bd5ca8c5..15521ac7225 100644
--- a/README.md
+++ b/README.md
@@ -97,11 +97,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://anymod.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/anymod.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.frontenddeveloperlove.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
@@ -112,13 +107,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://vuetifyjs.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://neds.com.au/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
@@ -139,13 +134,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://leanpub.com/vuejs2" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tmvuejs2.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://codepilot.ai" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
@@ -156,11 +144,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://jsguru.io/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jsguru.png">
-        </a>
-      </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://aaha.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
@@ -176,13 +161,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nsoft.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://www.pubnub.com/vue-js/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/pubnub.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.vuemastery.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">

From b10ea06a378ed5a677089d1b52d0414ca9e8d999 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 1 Jul 2018 10:15:15 -0400
Subject: [PATCH 485/911] chore: update sponsors

---
 BACKERS.md | 39 ++++++++++++++++++---------------------
 README.md  | 39 ++++++++++++++++++---------------------
 2 files changed, 36 insertions(+), 42 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 70c11dd5619..2b1c7a54f63 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -15,27 +15,19 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <h2 align="center">Special Sponsors</h2>
 
 <!--special start-->
-<table>
-  <tbody>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://stdlib.com" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bmqb.com/jobs" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-  </tbody>
-</table>
+
+<p align="center">
+  <a href="https://stdlib.com" target="_blank">
+    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+  </a>
+</p>
+  ,
+<p align="center">
+  <a href="https://www.bmqb.com/jobs" target="_blank">
+    <img width="220px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
+  </a>
+</p>
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -44,6 +36,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
+          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="http://tooltwist.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">
diff --git a/README.md b/README.md
index 15521ac7225..e496d16d681 100644
--- a/README.md
+++ b/README.md
@@ -25,27 +25,19 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <h3 align="center">Special Sponsors</h3>
 <!--special start-->
-<table>
-  <tbody>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://stdlib.com" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bmqb.com/jobs" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-  </tbody>
-</table>
+
+<p align="center">
+  <a href="https://stdlib.com" target="_blank">
+    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+  </a>
+</p>
+  ,
+<p align="center">
+  <a href="https://www.bmqb.com/jobs" target="_blank">
+    <img width="220px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
+  </a>
+</p>
+
 <!--special end-->
 
 <h3 align="center">Sponsors via Patreon</h3>
@@ -56,6 +48,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
+          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="http://tooltwist.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tooltwist.png">

From 1f68e1eb013d528741ed14d2cbbeb7281563d330 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 2 Jul 2018 22:27:12 -0400
Subject: [PATCH 486/911] chore: update sponsors

---
 BACKERS.md | 22 ++++++++++++++++------
 README.md  | 24 +++++++++++++++++-------
 2 files changed, 33 insertions(+), 13 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 2b1c7a54f63..39cfe90a429 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -72,6 +72,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.vuemastery.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://laravel.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
@@ -97,13 +102,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://vuetifyjs.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://neds.com.au/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
@@ -129,13 +134,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://teamextension.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="http://aaha.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
@@ -152,8 +157,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.vuemastery.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">
+        <a href="https://coreui.io/?utm_source=vuejs&utm_medium=logo&utm_campaign=homepage" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coreui.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://piio.co/vuejs?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/piio.png">
         </a>
       </td>
     </tr><tr></tr>
diff --git a/README.md b/README.md
index e496d16d681..cc8595c9115 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="220px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Sponsors via Patreon</h3>
@@ -79,6 +79,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.vuemastery.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://laravel.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/laravel.png">
@@ -104,13 +109,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://vuetifyjs.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://neds.com.au/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
@@ -136,13 +141,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://teamextension.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="http://aaha.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
@@ -159,8 +164,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.vuemastery.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuemastery.png">
+        <a href="https://coreui.io/?utm_source=vuejs&utm_medium=logo&utm_campaign=homepage" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coreui.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://piio.co/vuejs?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/piio.png">
         </a>
       </td>
     </tr><tr></tr>

From 0e5306658ad7b83c553a6a3eeedb15f9066ab063 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 5 Jul 2018 11:13:57 -0400
Subject: [PATCH 487/911] chore: sponsors

---
 BACKERS.md | 7 +++++++
 README.md  | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 39cfe90a429..4d514e584af 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -167,6 +167,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index cc8595c9115..1b34bd1bd66 100644
--- a/README.md
+++ b/README.md
@@ -174,6 +174,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From 48acf71a01e5665f72696d44aa5a8d8f1d137172 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 13 Jul 2018 09:16:24 -0400
Subject: [PATCH 488/911] chore: remove bmqb

---
 BACKERS.md | 6 ------
 README.md  | 6 ------
 2 files changed, 12 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 4d514e584af..fd69c0d7ea2 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,12 +21,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  ,
-<p align="center">
-  <a href="https://www.bmqb.com/jobs" target="_blank">
-    <img width="220px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
-  </a>
-</p>
   
 <!--special end-->
 
diff --git a/README.md b/README.md
index 1b34bd1bd66..3518725b22f 100644
--- a/README.md
+++ b/README.md
@@ -31,12 +31,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  ,
-<p align="center">
-  <a href="https://www.bmqb.com/jobs" target="_blank">
-    <img width="220px" src="https://raw.githubusercontent.com/vuejs/cn.vuejs.org/master/themes/vue/source/images/bmqb.png">
-  </a>
-</p>
   
 <!--special end-->
 

From 21112ecc691e25fc13b40985c0f0381e3911efa5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 18 Jul 2018 17:33:48 -0400
Subject: [PATCH 489/911] chore: update sponsor

---
 BACKERS.md | 7 +++++++
 README.md  | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index fd69c0d7ea2..5479839aa51 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -51,6 +51,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.nativescript.org/vue?utm_source=vue-js-org&utm_medium=website&utm_campaign=nativescript-awareness" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nativescript.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--platinum end-->
diff --git a/README.md b/README.md
index 3518725b22f..76121bb7641 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.nativescript.org/vue?utm_source=vue-js-org&utm_medium=website&utm_campaign=nativescript-awareness" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nativescript.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--platinum end-->

From 5a255d946c6c70218f6ebc0ddbf31029db696813 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 31 Jul 2018 09:19:25 -0400
Subject: [PATCH 490/911] chore: update sponsors and backers

---
 BACKERS.md | 30 ++++++++++++++++++++++--------
 README.md  |  5 +++++
 2 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 5479839aa51..38c410d651f 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -174,6 +174,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://webdock.io/en" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
@@ -311,10 +316,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Jake Ingman
 - Barbara Liau
 - 4 
-- The Graphic Design School
-- Christian Griffith
 - Jarek Tkaczyk
-- Andrew Davis
 - Sean MacIsaac
 - Xiaojie LI
 - David Hess
@@ -322,13 +324,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Dariusz Jastrzębski
 - Ivan Sieder
 - Matt Jones
-- Dave Chenell
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
 - Edithvale 
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
+- Chengzhi Yin
 - Zoran Knezevic
 - James Simpson
 - Pascal Germain
@@ -347,7 +349,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Thong Yong Jun
 - Tai Shi Lgin
 - Bryan Gruneberg
-- Roman Kuba
 - Matias Verdier
 - Jamie McElwain
 - Vivekanandhan Natarajan
@@ -362,11 +363,9 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Brian Jorden
 - Cliff Hess
 - Joe Ray Gregory
-- Oskar Lindgren
 - RADD Creative
 - Rua Cura D'ars
 - Richard Simpson
-- Charles McKeever
 - Alok Pant
 - Sandro Das Neves
 - Jessie Hernandez
@@ -392,7 +391,22 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Tom Ootes
 - Andy Foster
 - Blake Campbell
-- David Nunn
+- Daniel da Rocha
+- Joe Cochran
+- Matt Sencenbaugh
+- The Commission Cafe, LLC.
+- Leon Seipp
+- Daniel Mattingley
+- HANDI PRIYONO
+- Zhenping WANG
+- Teon Ooi
+- Hannes Kochniß
+- Juan Bermudez
+- Seiji Komatsu
+- Alberto T. Payero Mota
+- Colt Borg
+- Luis F Rocha
+- Chris Calo
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 76121bb7641..02f1cb14273 100644
--- a/README.md
+++ b/README.md
@@ -181,6 +181,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://webdock.io/en" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 3d36a443c755bf16f2656a8595dda9076f021a4a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 1 Aug 2018 12:33:47 -0700
Subject: [PATCH 491/911] fix: fix potential xss vulnerability in ssr when
 using v-bind

---
 src/platforms/web/server/modules/attrs.js     |  5 +++
 src/platforms/web/server/util.js              |  5 +++
 .../optimizing-compiler/runtime-helpers.js    |  5 ++-
 test/ssr/ssr-string.spec.js                   | 34 +++++++++++++++++++
 4 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/server/modules/attrs.js b/src/platforms/web/server/modules/attrs.js
index 9e7cc06160b..c3f73013e34 100644
--- a/src/platforms/web/server/modules/attrs.js
+++ b/src/platforms/web/server/modules/attrs.js
@@ -14,6 +14,8 @@ import {
   isFalsyAttrValue
 } from 'web/util/attrs'
 
+import { isSSRUnsafeAttr } from 'web/server/util'
+
 export default function renderAttrs (node: VNodeWithData): string {
   let attrs = node.data.attrs
   let res = ''
@@ -34,6 +36,9 @@ export default function renderAttrs (node: VNodeWithData): string {
   }
 
   for (const key in attrs) {
+    if (isSSRUnsafeAttr(key)) {
+      continue
+    }
     if (key === 'style') {
       // leave it to the style module
       continue
diff --git a/src/platforms/web/server/util.js b/src/platforms/web/server/util.js
index 774686dae6d..274897050a3 100644
--- a/src/platforms/web/server/util.js
+++ b/src/platforms/web/server/util.js
@@ -18,6 +18,11 @@ const isAttr = makeMap(
   'target,title,type,usemap,value,width,wrap'
 )
 
+const unsafeAttrCharRE = /[>/="'\u0009\u000a\u000c\u0020]/
+export const isSSRUnsafeAttr = (name: string): boolean => {
+  return unsafeAttrCharRE.test(name)
+}
+
 /* istanbul ignore next */
 const isRenderableAttr = (name: string): boolean => {
   return (
diff --git a/src/server/optimizing-compiler/runtime-helpers.js b/src/server/optimizing-compiler/runtime-helpers.js
index 9abfe1985d7..6f65de04e59 100644
--- a/src/server/optimizing-compiler/runtime-helpers.js
+++ b/src/server/optimizing-compiler/runtime-helpers.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { escape } from 'web/server/util'
+import { escape, isSSRUnsafeAttr } from 'web/server/util'
 import { isObject, extend } from 'shared/util'
 import { renderAttr } from 'web/server/modules/attrs'
 import { renderClass } from 'web/util/class'
@@ -109,6 +109,9 @@ function renderStringList (
 function renderAttrs (obj: Object): string {
   let res = ''
   for (const key in obj) {
+    if (isSSRUnsafeAttr(key)) {
+      continue
+    }
     res += renderAttr(key, obj[key])
   }
   return res
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 5300bbfefa5..865ebd6a8b7 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -929,6 +929,40 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('should prevent xss in attribute names', done => {
+    renderVmWithOptions({
+      data: {
+        xss: {
+          'foo="bar"></div><script>alert(1)</script>': ''
+        }
+      },
+      template: `
+        <div v-bind="xss"></div>
+      `
+    }, res => {
+      expect(res).not.toContain(`<script>alert(1)</script>`)
+      done()
+    })
+  })
+
+  it('should prevent xss in attribute names (optimized)', done => {
+    renderVmWithOptions({
+      data: {
+        xss: {
+          'foo="bar"></div><script>alert(1)</script>': ''
+        }
+      },
+      template: `
+        <div>
+          <a v-bind="xss">foo</a>
+        </div>
+      `
+    }, res => {
+      expect(res).not.toContain(`<script>alert(1)</script>`)
+      done()
+    })
+  })
+
   it('should prevent script xss with v-bind object syntax + array value', done => {
     renderVmWithOptions({
       data: {

From 1e77d355add015ab1dd732a0d732bffa4af0f060 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 7 Aug 2018 18:02:13 -0400
Subject: [PATCH 492/911] chore: new sponsor

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 38c410d651f..8710f101e74 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -179,6 +179,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://syncfusion.com/products/vue" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 02f1cb14273..567c7516e73 100644
--- a/README.md
+++ b/README.md
@@ -186,6 +186,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://syncfusion.com/products/vue" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 312fd51770ca25a8b6b33603a6a91cebc5c5d3d2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 13 Aug 2018 11:46:04 -0400
Subject: [PATCH 493/911] chore: update sponsors

---
 BACKERS.md |  7 ++-----
 README.md  | 30 ++++++++++++++++++++++++------
 2 files changed, 26 insertions(+), 11 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 8710f101e74..73764b84bdc 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -32,7 +32,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <tr>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -292,7 +292,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - errorrik 
 - Alex Balashov
 - Konstantin Levinski
-- tjkoury 
 - Evan Leonardi
 - Ernest Sim
 - Blaise Laflamme
@@ -372,7 +371,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Rua Cura D'ars
 - Richard Simpson
 - Alok Pant
-- Sandro Das Neves
 - Jessie Hernandez
 - Eric Fong
 - Aparajita Fishman
@@ -386,7 +384,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Jere Sjöroos
 - Wakana Seki
 - David Ang
-- David Rowthorn
 - Dom 
 - Ben Hong
 - David Kaplan
@@ -396,7 +393,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Tom Ootes
 - Andy Foster
 - Blake Campbell
-- Daniel da Rocha
 - Joe Cochran
 - Matt Sencenbaugh
 - The Commission Cafe, LLC.
@@ -412,6 +408,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Colt Borg
 - Luis F Rocha
 - Chris Calo
+- Milan Zivkovic
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 567c7516e73..e2043e2e0b9 100644
--- a/README.md
+++ b/README.md
@@ -31,12 +31,10 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
-<!--special end-->
 
-<h3 align="center">Sponsors via Patreon</h3>
+<!--special end-->
 
-<h4 align="center">Platinum</h4>
+<h3 align="center">Platinum Sponsors</h3>
 
 <!--platinum start-->
 <table>
@@ -44,7 +42,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <tr>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img height="90px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -74,7 +72,27 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 </table>
 <!--platinum end-->
 
-<h4 align="center">Gold</h4>
+<h3 align="center">Platinum Sponsors (China)</h3>
+<!--special-china start-->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.geekbang.org/" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/geekbang.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://gitee.com/?from=vue" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/gitee.png">
+        </a>
+      </td>
+    </tr><tr></tr>
+  </tbody>
+</table>
+<!--special-china end-->
+
+<h3 align="center">Gold Sponsors</h4>
 
 <!--gold start-->
 <table>

From 25a688ee314d82b584ef0f192d4016b75664a616 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 13 Aug 2018 17:48:11 -0400
Subject: [PATCH 494/911] chore: update backers

---
 BACKERS.md | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 73764b84bdc..915a2144411 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -247,7 +247,12 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://i.imgur.com/hQHW6TB.png">
         </a>
       </td>
-    </tr><tr></tr>
+      <td align="center" valign="middle">
+        <a href="https://www.earthlink.ro" target="_blank">
+          <img width="148px" src="https://i.imgur.com/qX0SNa7.png">
+        </a>
+      </td>
+    </tr>
   </tbody>
 </table>
 <!--bronze end-->
@@ -289,7 +294,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik 
+- errorrik
 - Alex Balashov
 - Konstantin Levinski
 - Evan Leonardi
@@ -315,11 +320,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解 
+- 叶解
 - Paul Straw
 - Jake Ingman
 - Barbara Liau
-- 4 
+- 4
 - Jarek Tkaczyk
 - Sean MacIsaac
 - Xiaojie LI
@@ -331,7 +336,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale 
+- Edithvale
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
@@ -384,12 +389,12 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Jere Sjöroos
 - Wakana Seki
 - David Ang
-- Dom 
+- Dom
 - Ben Hong
 - David Kaplan
 - John Cleveland
 - Jaeyoung Lee
-- Amor 
+- Amor
 - Tom Ootes
 - Andy Foster
 - Blake Campbell

From 9476d3e7428b6638d3243045d5a052ad5824d4e7 Mon Sep 17 00:00:00 2001
From: d-pollard <d-pollard@users.noreply.github.com>
Date: Tue, 14 Aug 2018 08:11:43 -0500
Subject: [PATCH 495/911] chore: update backers (#8649)

---
 BACKERS.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 915a2144411..d6e711b9bb8 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -252,6 +252,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://i.imgur.com/qX0SNa7.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://polyglotengineer.com/derek.pollard" target="_blank">
+          <img width="148px" src="https://polyglotengineer.com/DP.png">
+        </a>
+      </td>
     </tr>
   </tbody>
 </table>

From 833175e9d6e8f47367e49e1752cd149a677cdae8 Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Tue, 14 Aug 2018 14:12:26 +0100
Subject: [PATCH 496/911] refactor: ignore control-regex lint for
 unsafeAttrCharRE (#8601)

---
 src/platforms/web/server/util.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/platforms/web/server/util.js b/src/platforms/web/server/util.js
index 274897050a3..1481da5bc4d 100644
--- a/src/platforms/web/server/util.js
+++ b/src/platforms/web/server/util.js
@@ -18,7 +18,7 @@ const isAttr = makeMap(
   'target,title,type,usemap,value,width,wrap'
 )
 
-const unsafeAttrCharRE = /[>/="'\u0009\u000a\u000c\u0020]/
+const unsafeAttrCharRE = /[>/="'\u0009\u000a\u000c\u0020]/ // eslint-disable-line no-control-regex
 export const isSSRUnsafeAttr = (name: string): boolean => {
   return unsafeAttrCharRE.test(name)
 }

From c94482743c41e9bfc745aa06d63f7f83bdd56991 Mon Sep 17 00:00:00 2001
From: Edd Yerburgh <edward.yerburgh@gmail.com>
Date: Thu, 16 Aug 2018 21:26:02 +0100
Subject: [PATCH 497/911] feat: add async option (#8240)

This is an option intended only for testing purposes, and should not be used in
application code.
---
 src/core/config.js                           |  9 +++
 src/core/observer/dep.js                     |  7 ++
 src/core/observer/scheduler.js               |  5 ++
 test/unit/features/global-api/config.spec.js | 67 ++++++++++++++++++++
 types/test/vue-test.ts                       |  1 +
 types/vue.d.ts                               |  1 +
 6 files changed, 90 insertions(+)

diff --git a/src/core/config.js b/src/core/config.js
index f25f09d1f35..cae9d3dd395 100644
--- a/src/core/config.js
+++ b/src/core/config.js
@@ -28,6 +28,9 @@ export type Config = {
   getTagNamespace: (x?: string) => string | void;
   mustUseProp: (tag: string, type: ?string, name: string) => boolean;
 
+  // private
+  async: boolean;
+
   // legacy
   _lifecycleHooks: Array<string>;
 };
@@ -114,6 +117,12 @@ export default ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
diff --git a/src/core/observer/dep.js b/src/core/observer/dep.js
index abf3b275ce4..1dd37783490 100644
--- a/src/core/observer/dep.js
+++ b/src/core/observer/dep.js
@@ -2,6 +2,7 @@
 
 import type Watcher from './watcher'
 import { remove } from '../util/index'
+import config from '../config'
 
 let uid = 0
 
@@ -36,6 +37,12 @@ export default class Dep {
   notify () {
     // stabilize the subscriber list first
     const subs = this.subs.slice()
+    if (process.env.NODE_ENV !== 'production' && !config.async) {
+      // subs aren't sorted in scheduler if not running async
+      // we need to sort them now to make sure they fire in correct
+      // order
+      subs.sort((a, b) => a.id - b.id)
+    }
     for (let i = 0, l = subs.length; i < l; i++) {
       subs[i].update()
     }
diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index e7ccf57dd25..176ee2c36f7 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -145,6 +145,11 @@ export function queueWatcher (watcher: Watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true
+
+      if (process.env.NODE_ENV !== 'production' && !config.async) {
+        flushSchedulerQueue()
+        return
+      }
       nextTick(flushSchedulerQueue)
     }
   }
diff --git a/test/unit/features/global-api/config.spec.js b/test/unit/features/global-api/config.spec.js
index 1edfc3c7829..f2e5074ce72 100644
--- a/test/unit/features/global-api/config.spec.js
+++ b/test/unit/features/global-api/config.spec.js
@@ -55,4 +55,71 @@ describe('Global config', () => {
       Vue.config.ignoredElements = []
     })
   })
+
+  describe('async', () => {
+    it('does not update synchronously when true', () => {
+      const spy = jasmine.createSpy()
+      const vm = new Vue({
+        template: `<div :class="value"></div>`,
+        updated: spy,
+        data: { value: true }
+      }).$mount()
+      vm.value = false
+      expect(spy).not.toHaveBeenCalled()
+    })
+
+    it('updates synchronously when false', () => {
+      const spy = jasmine.createSpy()
+      Vue.config.async = false
+      const vm = new Vue({
+        template: `<div :class="value"></div>`,
+        updated: spy,
+        data: { value: true }
+      }).$mount()
+      vm.value = false
+      expect(spy).toHaveBeenCalled()
+      Vue.config.async = true
+    })
+
+    it('runs watchers in correct order when false', () => {
+      Vue.config.async = false
+      const vm = new Vue({
+        template: `
+          <div id="app">
+            {{ computed }}
+          </div>`,
+        props: ['prop'],
+        propsData: {
+          'prop': []
+        },
+        data: () => ({
+          data: ''
+        }),
+        computed: {
+          computed () {
+            return this.prop.join(',')
+          }
+        },
+        watch: {
+          prop: 'execute'
+        },
+        methods: {
+          execute () {
+            this.data = this.computed
+          }
+        }
+      }).$mount()
+      expect(vm.computed).toBe('')
+      expect(vm.data).toBe('')
+
+      vm.prop = [1, 2, 3]
+      expect(vm.computed).toBe('1,2,3')
+      expect(vm.data).toBe('1,2,3')
+
+      vm.prop.push(4, 5)
+      expect(vm.computed).toBe('1,2,3,4,5')
+      expect(vm.data).toBe('1,2,3,4,5')
+      Vue.config.async = true
+    })
+  })
 })
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 96949371793..326969c1637 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -73,6 +73,7 @@ class Test extends Vue {
     };
     config.keyCodes = { esc: 27 };
     config.ignoredElements = ['foo', /^ion-/];
+    config.async = false
   }
 
   static testMethods() {
diff --git a/types/vue.d.ts b/types/vue.d.ts
index e0b29157cfa..179fb5fe38e 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -74,6 +74,7 @@ export interface VueConfiguration {
   warnHandler(msg: string, vm: Vue, trace: string): void;
   ignoredElements: (string | RegExp)[];
   keyCodes: { [key: string]: number | number[] };
+  async: boolean;
 }
 
 export interface VueConstructor<V extends Vue = Vue> {

From 59860b0a756526f37468655598c68d119f0e74bd Mon Sep 17 00:00:00 2001
From: Yuriy Alekseyev <dev.yuriy.a@gmail.com>
Date: Fri, 17 Aug 2018 17:40:46 +0300
Subject: [PATCH 498/911] refactor: make the warning messages more explicit
 (close #7764) (#7881)

---
 src/core/util/props.js                   | 45 ++++++++++++++++++++++--
 test/unit/features/options/props.spec.js | 30 +++++++++++-----
 2 files changed, 64 insertions(+), 11 deletions(-)

diff --git a/src/core/util/props.js b/src/core/util/props.js
index a92643f9d2a..1b57f77cdb5 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -127,11 +127,10 @@ function assertProp (
       valid = assertedType.valid
     }
   }
+
   if (!valid) {
     warn(
-      `Invalid prop: type check failed for prop "${name}".` +
-      ` Expected ${expectedTypes.map(capitalize).join(', ')}` +
-      `, got ${toRawType(value)}.`,
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     )
     return
@@ -200,3 +199,43 @@ function getTypeIndex (type, expectedTypes): number {
   }
   return -1
 }
+
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  let message = `Invalid prop: type check failed for prop "${name}".` +
+    ` Expected ${expectedTypes.map(capitalize).join(', ')}`
+  const expectedType = expectedTypes[0]
+  const receivedType = toRawType(value)
+  const expectedValue = styleValue(value, expectedType)
+  const receivedValue = styleValue(value, receivedType)
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += ` with value ${expectedValue}`
+  }
+  message += `, got ${receivedType} `
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += `with value ${receivedValue}.`
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return `"${value}"`
+  } else if (type === 'Number') {
+    return `${Number(value)}`
+  } else {
+    return `${value}`
+  }
+}
+
+function isExplicable (value) {
+  const explicitTypes = ['string', 'number', 'boolean']
+  return explicitTypes.some(elem => value.toLowerCase() === elem)
+}
+
+function isBoolean (...args) {
+  return args.some(elem => elem.toLowerCase() === 'boolean')
+}
diff --git a/test/unit/features/options/props.spec.js b/test/unit/features/options/props.spec.js
index bdb6cdaa8f5..5adedeb2e6e 100644
--- a/test/unit/features/options/props.spec.js
+++ b/test/unit/features/options/props.spec.js
@@ -171,42 +171,56 @@ describe('Options props', () => {
       makeInstance('hello', String)
       expect(console.error.calls.count()).toBe(0)
       makeInstance(123, String)
-      expect('Expected String').toHaveBeenWarned()
+      expect('Expected String with value "123", got Number with value 123').toHaveBeenWarned()
     })
 
     it('number', () => {
       makeInstance(123, Number)
       expect(console.error.calls.count()).toBe(0)
       makeInstance('123', Number)
-      expect('Expected Number').toHaveBeenWarned()
+      expect('Expected Number with value 123, got String with value "123"').toHaveBeenWarned()
+    })
+
+    it('number & boolean', () => {
+      makeInstance(123, Number)
+      expect(console.error.calls.count()).toBe(0)
+      makeInstance(false, Number)
+      expect('Expected Number, got Boolean with value false').toHaveBeenWarned()
+    })
+
+    it('string & boolean', () => {
+      makeInstance('hello', String)
+      expect(console.error.calls.count()).toBe(0)
+      makeInstance(true, String)
+      expect('Expected String, got Boolean with value true').toHaveBeenWarned()
     })
 
     it('boolean', () => {
       makeInstance(true, Boolean)
       expect(console.error.calls.count()).toBe(0)
       makeInstance('123', Boolean)
-      expect('Expected Boolean').toHaveBeenWarned()
+      expect('Expected Boolean, got String with value "123"').toHaveBeenWarned()
     })
 
     it('function', () => {
       makeInstance(() => {}, Function)
       expect(console.error.calls.count()).toBe(0)
       makeInstance(123, Function)
-      expect('Expected Function').toHaveBeenWarned()
+      expect('Expected Function, got Number with value 123').toHaveBeenWarned()
     })
 
     it('object', () => {
       makeInstance({}, Object)
       expect(console.error.calls.count()).toBe(0)
       makeInstance([], Object)
-      expect('Expected Object').toHaveBeenWarned()
+      expect('Expected Object, got Array').toHaveBeenWarned()
     })
 
     it('array', () => {
       makeInstance([], Array)
       expect(console.error.calls.count()).toBe(0)
       makeInstance({}, Array)
-      expect('Expected Array').toHaveBeenWarned()
+      expect('Expected Array, got Object').toHaveBeenWarned()
     })
 
     it('primitive wrapper objects', () => {
@@ -225,7 +239,7 @@ describe('Options props', () => {
         makeInstance(Symbol('foo'), Symbol)
         expect(console.error.calls.count()).toBe(0)
         makeInstance({}, Symbol)
-        expect('Expected Symbol').toHaveBeenWarned()
+        expect('Expected Symbol, got Object').toHaveBeenWarned()
       })
     }
 
@@ -257,7 +271,7 @@ describe('Options props', () => {
       makeInstance(123, Number, v => v === 234)
       expect('custom validator check failed').toHaveBeenWarned()
       makeInstance(123, String, v => v === 123)
-      expect('Expected String').toHaveBeenWarned()
+      expect('Expected String with value "123", got Number with value 123').toHaveBeenWarned()
     })
 
     it('multiple types + custom validator', () => {

From c21b89ebeda4c45024c2a71bc7a292d47ebc7ee1 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Tue, 21 Aug 2018 05:49:18 +0800
Subject: [PATCH 499/911] fix(ssr): fix double escaping of staticClass values
 (#7859) (#8037)

---
 src/server/optimizing-compiler/modules.js |  2 +-
 test/ssr/ssr-string.spec.js               | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/server/optimizing-compiler/modules.js b/src/server/optimizing-compiler/modules.js
index 69a7be87390..821f0e2b064 100644
--- a/src/server/optimizing-compiler/modules.js
+++ b/src/server/optimizing-compiler/modules.js
@@ -92,7 +92,7 @@ export function genClassSegments (
   classBinding: ?string
 ): Array<StringSegment> {
   if (staticClass && !classBinding) {
-    return [{ type: RAW, value: ` class=${staticClass}` }]
+    return [{ type: RAW, value: ` class="${JSON.parse(staticClass)}"` }]
   } else {
     return [{
       type: EXPRESSION,
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 865ebd6a8b7..6dbf5a28ad0 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1245,6 +1245,20 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  // #7859
+  it('should not double escape class values', done => {
+    renderVmWithOptions({
+      template: `
+      <div>
+        <div class="a\nb"></div>
+      </div>
+      `
+    }, result => {
+      expect(result).toContain(`<div class="a\nb"></div>`)
+      done()
+    })
+  })
+
   it('should expose ssr helpers on functional context', done => {
     let called = false
     renderVmWithOptions({

From d280937045988097b816c4497322acc8aaca2d86 Mon Sep 17 00:00:00 2001
From: Tim <timspeelman@live.nl>
Date: Mon, 20 Aug 2018 22:52:06 +0100
Subject: [PATCH 500/911] test(e2e): trigger click on .new-todo instead of
 footer (#7938)

---
 test/e2e/specs/todomvc.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/e2e/specs/todomvc.js b/test/e2e/specs/todomvc.js
index 7f3c42fe7cc..7720b04ddd5 100644
--- a/test/e2e/specs/todomvc.js
+++ b/test/e2e/specs/todomvc.js
@@ -119,7 +119,7 @@ module.exports = {
       .assert.focused('.todo:nth-child(1) .edit')
       .clearValue('.todo:nth-child(1) .edit')
       .setValue('.todo:nth-child(1) .edit', 'edited!')
-      .click('footer') // blur
+      .click('.new-todo') // blur
       .assert.count('.todo.editing', 0)
       .assert.containsText('.todo:nth-child(1) label', 'edited!')
 

From 3b43c81216c2e29bd519c447e930d6512b5782e8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 27 Aug 2018 15:05:41 -0400
Subject: [PATCH 501/911] chore: update sponsors

---
 BACKERS.md | 9 +++++++--
 README.md  | 7 ++++++-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index d6e711b9bb8..559f5f3e8d2 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -184,6 +184,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://kintohub.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/kintohub.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
@@ -257,7 +262,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://polyglotengineer.com/DP.png">
         </a>
       </td>
-    </tr>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--bronze end-->
diff --git a/README.md b/README.md
index e2043e2e0b9..1facce851bd 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -209,6 +209,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://kintohub.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/kintohub.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 1e1ce0cac7d6c22c980021cbd3cb207a47e85dfb Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Mon, 10 Sep 2018 05:28:20 +0800
Subject: [PATCH 502/911] fix: replace hardcoded .parentNode with abstract ops,
 fix #8713 (#8714)

---
 src/core/vdom/patch.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index fb28d8cd341..676499dc69e 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -272,7 +272,7 @@ export function createPatchFunction (backend) {
   function insert (parent, elm, ref) {
     if (isDef(parent)) {
       if (isDef(ref)) {
-        if (ref.parentNode === parent) {
+        if (nodeOps.parentNode(ref) === parent) {
           nodeOps.insertBefore(parent, elm, ref)
         }
       } else {

From a9eb198413e7b1baaf364e93ec3c093734529fe8 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Tue, 18 Sep 2018 11:33:58 +0900
Subject: [PATCH 503/911] fix(types): relax the return type of props default
 option (#8537)

---
 types/options.d.ts         |  2 +-
 types/test/options-test.ts | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index cc58affe6a1..25eb8a0fdf3 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -133,7 +133,7 @@ export type PropValidator<T> = PropOptions<T> | Prop<T> | Prop<T>[];
 export interface PropOptions<T=any> {
   type?: Prop<T> | Prop<T>[];
   required?: boolean;
-  default?: T | null | undefined | (() => object);
+  default?: T | null | undefined | (() => T | null | undefined);
   validator?(value: T): boolean;
 }
 
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 6fc9e356451..17a54fd360b 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -79,6 +79,18 @@ Vue.component('union-prop', {
   }
 });
 
+Vue.component('prop-with-primitive-default', {
+  props: {
+    id: {
+      type: String,
+      default: () => String(Math.round(Math.random() * 10000000))
+    }
+  },
+  created() {
+    this.id;
+  }
+});
+
 Vue.component('component', {
   data() {
     this.$mount

From 2a057844fa3ed87f8fa04cb9a86c4162f422be19 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 18 Sep 2018 10:21:15 -0400
Subject: [PATCH 504/911] chore: update sponsor

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 559f5f3e8d2..ce015ced499 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -17,8 +17,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <!--special start-->
 
 <p align="center">
-  <a href="https://stdlib.com" target="_blank">
-    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+  <a href="https://code.xyz/" target="_blank">
+    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
   </a>
 </p>
   
diff --git a/README.md b/README.md
index 1facce851bd..8365c2f099c 100644
--- a/README.md
+++ b/README.md
@@ -27,8 +27,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <!--special start-->
 
 <p align="center">
-  <a href="https://stdlib.com" target="_blank">
-    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
+  <a href="https://code.xyz/" target="_blank">
+    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
   </a>
 </p>
   

From 2ae4e298f1a028e4c3dde7cd9902a11e73eeb104 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 18 Sep 2018 10:21:25 -0400
Subject: [PATCH 505/911] chore: lockfile maintenance

---
 yarn.lock | 307 ++++++++++++++++++++----------------------------------
 1 file changed, 111 insertions(+), 196 deletions(-)

diff --git a/yarn.lock b/yarn.lock
index e8cb628ffd7..30951e922dc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -336,6 +336,10 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argv@^0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/argv/-/argv-0.0.2.tgz#ecbd16f8949b157183711b1bda334f37840185ab"
+
 arr-diff@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
@@ -416,10 +420,6 @@ asn1.js@^4.0.0:
     inherits "^2.0.1"
     minimalistic-assert "^1.0.0"
 
-asn1@0.1.11:
-  version "0.1.11"
-  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.1.11.tgz#559be18376d08a4ec4dbe80877d27818639b2df7"
-
 asn1@~0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
@@ -428,10 +428,6 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
 
-assert-plus@^0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.1.5.tgz#ee74009413002d84cec7219c6ac811812e723160"
-
 assert-plus@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
@@ -484,10 +480,6 @@ async@^2.0.0, async@^2.1.2:
   dependencies:
     lodash "^4.14.0"
 
-async@~0.9.0:
-  version "0.9.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
-
 async@~2.1.2:
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/async/-/async-2.1.5.tgz#e587c68580994ac67fc56ff86d3ac56bdbe810bc"
@@ -506,10 +498,6 @@ atob@~1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/atob/-/atob-1.1.3.tgz#95f13629b12c3a51a5d215abdce2aa9f32f80773"
 
-aws-sign2@~0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.5.0.tgz#c57103f7a17fc037f02d7c2e64b602ea223f7d63"
-
 aws-sign2@~0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
@@ -522,6 +510,10 @@ aws4@^1.2.1, aws4@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
 
+aws4@^1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
+
 axios@^0.15.3:
   version "0.15.3"
   resolved "https://registry.yarnpkg.com/axios/-/axios-0.15.3.tgz#2c9d638b2e191a08ea1d6cc988eadd6ba5bdc053"
@@ -1071,12 +1063,6 @@ bl@^1.0.0:
   dependencies:
     readable-stream "^2.0.5"
 
-bl@~0.9.0:
-  version "0.9.5"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-0.9.5.tgz#c06b797af085ea00bc527afc8efcf11de2232054"
-  dependencies:
-    readable-stream "~1.0.26"
-
 bl@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/bl/-/bl-1.1.2.tgz#fdca871a99713aa00d19e3bbba41c44787a65398"
@@ -1116,12 +1102,6 @@ body-parser@^1.16.1:
     raw-body "2.3.2"
     type-is "~1.6.15"
 
-boom@0.4.x:
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/boom/-/boom-0.4.2.tgz#7a636e9ded4efcefb19cef4947a3c67dfaee911b"
-  dependencies:
-    hoek "0.9.x"
-
 boom@2.x.x:
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
@@ -1456,10 +1436,6 @@ caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
 
-caseless@~0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.6.0.tgz#8167c1ab8397fb5bb95f96d28e5a81c50f247ac4"
-
 center-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/center-align/-/center-align-0.1.3.tgz#aa0d32629b6ee972200411cbd4461c907bc2b7ad"
@@ -1622,12 +1598,15 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codecov.io@^0.1.6:
-  version "0.1.6"
-  resolved "https://registry.yarnpkg.com/codecov.io/-/codecov.io-0.1.6.tgz#59dfd02da1ff31c2fb2b952ad8ad16fd3781b728"
+codecov@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.1.0.tgz#340bd968d361f256976b5af782dd8ba9f82bc849"
   dependencies:
-    request "2.42.0"
-    urlgrey "0.4.0"
+    argv "^0.0.2"
+    ignore-walk "^3.0.1"
+    js-yaml "^3.12.0"
+    request "^2.87.0"
+    urlgrey "^0.4.4"
 
 collection-visit@^1.0.0:
   version "1.0.0"
@@ -1678,18 +1657,12 @@ combine-source-map@~0.8.0:
     lodash.memoize "~3.0.3"
     source-map "~0.5.3"
 
-combined-stream@1.0.6, combined-stream@^1.0.5, combined-stream@~1.0.5:
+combined-stream@1.0.6, combined-stream@^1.0.5, combined-stream@~1.0.5, combined-stream@~1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
   dependencies:
     delayed-stream "~1.0.0"
 
-combined-stream@~0.0.4:
-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-0.0.7.tgz#0137e657baa5a7541c57ac37ac5fc07d73b4dc1f"
-  dependencies:
-    delayed-stream "0.0.5"
-
 commander@2.9.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
@@ -2026,12 +1999,6 @@ cross-spawn@^5.0.1, cross-spawn@^5.1.0:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-cryptiles@0.2.x:
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-0.2.2.tgz#ed91ff1f17ad13d3748288594f8a48a0d26f325c"
-  dependencies:
-    boom "0.4.x"
-
 cryptiles@2.x.x:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
@@ -2079,10 +2046,6 @@ cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   dependencies:
     cssom "0.3.x"
 
-ctype@0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/ctype/-/ctype-0.5.3.tgz#82c18c2461f74114ef16c135224ad0b9144ca12f"
-
 currently-unhandled@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
@@ -2210,10 +2173,6 @@ deep-eql@0.1.3:
   dependencies:
     type-detect "0.1.1"
 
-deep-equal@~0.1.0:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-0.1.2.tgz#b246c2b80a570a47c11be1d9bd1070ec878b87ce"
-
 deep-extend@~0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
@@ -2245,10 +2204,6 @@ defined@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
 
-defined@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/defined/-/defined-0.0.0.tgz#f35eea7d705e933baf13b2f03b3f83d921403b3e"
-
 degenerator@~1.0.2:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/degenerator/-/degenerator-1.0.4.tgz#fcf490a37ece266464d9cc431ab98c5819ced095"
@@ -2280,10 +2235,6 @@ del@^3.0.0:
     pify "^3.0.0"
     rimraf "^2.2.8"
 
-delayed-stream@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-0.0.5.tgz#d4b1f43a93e8296dfe02694f4680bc37a313c73f"
-
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
@@ -2432,10 +2383,6 @@ duplexer2@^0.1.2, duplexer2@~0.1.0, duplexer2@~0.1.2:
   dependencies:
     readable-stream "^2.0.2"
 
-duplexer@~0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
-
 ecc-jsbn@~0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
@@ -2931,6 +2878,10 @@ extend@3, extend@^3.0.0, extend@~3.0.0, extend@~3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
 
+extend@~3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
+
 external-editor@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-1.1.1.tgz#12d7b0db850f7ff7e7081baf4005700060c4600b"
@@ -3156,22 +3107,10 @@ for-own@^0.1.4:
   dependencies:
     for-in "^1.0.1"
 
-forever-agent@~0.5.0:
-  version "0.5.2"
-  resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.5.2.tgz#6d0e09c4921f94a27f63d3b49c5feff1ea4c5130"
-
 forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
 
-form-data@~0.1.0:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/form-data/-/form-data-0.1.4.tgz#91abd788aba9702b1aabfa8bc01031a2ac9e3b12"
-  dependencies:
-    async "~0.9.0"
-    combined-stream "~0.0.4"
-    mime "~1.2.11"
-
 form-data@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.0.0.tgz#6f0aebadcc5da16c13e1ecc11137d85f9b883b25"
@@ -3188,7 +3127,7 @@ form-data@~2.1.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
-form-data@~2.3.1:
+form-data@~2.3.1, form-data@~2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.2.tgz#4970498be604c20c005d4f5c23aecd21d6b49099"
   dependencies:
@@ -3524,6 +3463,13 @@ har-validator@~5.0.3:
     ajv "^5.1.0"
     har-schema "^2.0.0"
 
+har-validator@~5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.1.0.tgz#44657f5688a22cfd4b72486e81b3a3fb11742c29"
+  dependencies:
+    ajv "^5.3.0"
+    har-schema "^2.0.0"
+
 has-ansi@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-2.0.0.tgz#34f5049ce1ecdf2b0649af3ef24e45ed35416d91"
@@ -3620,15 +3566,6 @@ hasha@^2.2.0:
     is-stream "^1.0.1"
     pinkie-promise "^2.0.0"
 
-hawk@1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/hawk/-/hawk-1.1.1.tgz#87cd491f9b46e4e2aeaca335416766885d2d1ed9"
-  dependencies:
-    boom "0.4.x"
-    cryptiles "0.2.x"
-    hoek "0.9.x"
-    sntp "0.2.x"
-
 hawk@3.1.3, hawk@~3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
@@ -3666,10 +3603,6 @@ hmac-drbg@^1.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.1"
 
-hoek@0.9.x:
-  version "0.9.1"
-  resolved "https://registry.yarnpkg.com/hoek/-/hoek-0.9.1.tgz#3d322462badf07716ea7eb85baf88079cddce505"
-
 hoek@2.x.x:
   version "2.16.3"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
@@ -3753,14 +3686,6 @@ http-server@^0.11.1:
     portfinder "^1.0.13"
     union "~0.4.3"
 
-http-signature@~0.10.0:
-  version "0.10.1"
-  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-0.10.1.tgz#4fbdac132559aa8323121e540779c0a012b27e66"
-  dependencies:
-    asn1 "0.1.11"
-    assert-plus "^0.1.5"
-    ctype "0.5.3"
-
 http-signature@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
@@ -3812,6 +3737,12 @@ ieee754@^1.1.4:
   version "1.1.8"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.8.tgz#be33d40ac10ef1926701f6f08a2d86fbfd1ad3e4"
 
+ignore-walk@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.1.tgz#a83e62e7d272ac0e3b551aaa82831a19b69f82f8"
+  dependencies:
+    minimatch "^3.0.4"
+
 ignore@^3.3.3:
   version "3.3.7"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
@@ -4428,6 +4359,13 @@ js-yaml@3.x, js-yaml@^3.9.0, js-yaml@^3.9.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@^3.12.0:
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
@@ -4507,7 +4445,7 @@ json-stable-stringify@~0.0.0:
   dependencies:
     jsonify "~0.0.0"
 
-json-stringify-safe@5.0.x, json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.0, json-stringify-safe@~5.0.1:
+json-stringify-safe@5.0.x, json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
 
@@ -5275,24 +5213,26 @@ mime-db@~1.33.0:
   version "1.33.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
 
+mime-db@~1.36.0:
+  version "1.36.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.36.0.tgz#5020478db3c7fe93aad7bbcc4dcf869c43363397"
+
 mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.7:
   version "2.1.18"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
   dependencies:
     mime-db "~1.33.0"
 
-mime-types@~1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-1.0.2.tgz#995ae1392ab8affcbfcb2641dd054e943c0d5dce"
+mime-types@~2.1.19:
+  version "2.1.20"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.20.tgz#930cb719d571e903738520f8470911548ca2cc19"
+  dependencies:
+    mime-db "~1.36.0"
 
 mime@^1.3.4, mime@^1.4.1, mime@^1.5.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
 
-mime@~1.2.11:
-  version "1.2.11"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-1.2.11.tgz#58203eed86e3a5ef17aed2b7d9ebd47f0a60dd10"
-
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
@@ -5515,7 +5455,7 @@ node-pre-gyp@^0.6.39:
     tar "^2.2.1"
     tar-pack "^3.4.0"
 
-node-uuid@~1.4.0, node-uuid@~1.4.7:
+node-uuid@~1.4.7:
   version "1.4.8"
   resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.8.tgz#b040eb0923968afabf8d32fb1f17f1167fdab907"
 
@@ -5641,14 +5581,14 @@ nwmatcher@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/nwmatcher/-/nwmatcher-1.4.3.tgz#64348e3b3d80f035b40ac11563d278f8b72db89c"
 
-oauth-sign@~0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.4.0.tgz#f22956f31ea7151a821e5f2fb32c113cad8b9f69"
-
 oauth-sign@~0.8.1, oauth-sign@~0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
 
+oauth-sign@~0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
+
 object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
@@ -6114,6 +6054,10 @@ pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
+psl@^1.1.24:
+  version "1.1.29"
+  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.29.tgz#60f580d360170bb722a797cc704411e6da850c67"
+
 public-encrypt@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/public-encrypt/-/public-encrypt-4.0.0.tgz#39f699f3a46560dd5ebacbca693caf7c65c18cc6"
@@ -6152,10 +6096,6 @@ qs@6.5.1, qs@~6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
 
-qs@~1.2.0:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-1.2.2.tgz#19b57ff24dc2a99ce1f8bdf6afcda59f8ef61f88"
-
 qs@~2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
@@ -6172,6 +6112,10 @@ qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
 
+qs@~6.5.2:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+
 querystring-es3@^0.2.0, querystring-es3@~0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
@@ -6298,15 +6242,6 @@ readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stre
     string_decoder "~1.0.3"
     util-deprecate "~1.0.1"
 
-readable-stream@~1.0.26:
-  version "1.0.34"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
 readable-stream@~2.0.0, readable-stream@~2.0.5:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
@@ -6452,27 +6387,6 @@ request-promise-native@^1.0.5:
     stealthy-require "^1.1.0"
     tough-cookie ">=2.3.3"
 
-request@2.42.0:
-  version "2.42.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.42.0.tgz#572bd0148938564040ac7ab148b96423a063304a"
-  dependencies:
-    bl "~0.9.0"
-    caseless "~0.6.0"
-    forever-agent "~0.5.0"
-    json-stringify-safe "~5.0.0"
-    mime-types "~1.0.1"
-    node-uuid "~1.4.0"
-    qs "~1.2.0"
-    tunnel-agent "~0.4.0"
-  optionalDependencies:
-    aws-sign2 "~0.5.0"
-    form-data "~0.1.0"
-    hawk "1.1.1"
-    http-signature "~0.10.0"
-    oauth-sign "~0.4.0"
-    stringstream "~0.0.4"
-    tough-cookie ">=0.12.0"
-
 request@2.75.x:
   version "2.75.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.75.0.tgz#d2b8268a286da13eaa5d01adf5d18cc90f657d93"
@@ -6578,6 +6492,31 @@ request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.83.0:
     tunnel-agent "^0.6.0"
     uuid "^3.1.0"
 
+request@^2.87.0:
+  version "2.88.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
+  dependencies:
+    aws-sign2 "~0.7.0"
+    aws4 "^1.8.0"
+    caseless "~0.12.0"
+    combined-stream "~1.0.6"
+    extend "~3.0.2"
+    forever-agent "~0.6.1"
+    form-data "~2.3.2"
+    har-validator "~5.1.0"
+    http-signature "~1.2.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.19"
+    oauth-sign "~0.9.0"
+    performance-now "^2.1.0"
+    qs "~6.5.2"
+    safe-buffer "^5.1.2"
+    tough-cookie "~2.4.3"
+    tunnel-agent "^0.6.0"
+    uuid "^3.3.2"
+
 requestretry@^1.2.2:
   version "1.13.0"
   resolved "https://registry.yarnpkg.com/requestretry/-/requestretry-1.13.0.tgz#213ec1006eeb750e8b8ce54176283d15a8d55d94"
@@ -6653,12 +6592,6 @@ restore-cursor@^2.0.0:
     onetime "^2.0.0"
     signal-exit "^3.0.2"
 
-resumer@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/resumer/-/resumer-0.0.0.tgz#f1e8f461e4064ba39e82af3cdc2a8c893d076759"
-  dependencies:
-    through "~2.3.4"
-
 ret@~0.1.10:
   version "0.1.15"
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
@@ -6794,6 +6727,10 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0,
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
+safe-buffer@^5.1.2:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+
 safe-regex@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
@@ -6994,12 +6931,6 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^2.0.0"
 
-sntp@0.2.x:
-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/sntp/-/sntp-0.2.4.tgz#fb885f18b0f3aad189f824862536bceeec750900"
-  dependencies:
-    hoek "0.9.x"
-
 sntp@1.x.x:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/sntp/-/sntp-1.0.9.tgz#6541184cc90aeea6c6e7b35e2659082443c66198"
@@ -7191,12 +7122,6 @@ split@^1.0.0:
   dependencies:
     through "2"
 
-split@~0.2.10:
-  version "0.2.10"
-  resolved "https://registry.yarnpkg.com/split/-/split-0.2.10.tgz#67097c601d697ce1368f418f06cd201cf0521a57"
-  dependencies:
-    through "2"
-
 sprintf-js@^1.0.3:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.1.tgz#36be78320afe5801f6cea3ee78b6e5aab940ea0c"
@@ -7260,12 +7185,6 @@ stream-combiner2@^1.1.1:
     duplexer2 "~0.1.0"
     readable-stream "^2.0.2"
 
-stream-combiner@~0.0.2:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/stream-combiner/-/stream-combiner-0.0.4.tgz#4d5e433c185261dde623ca3f44c586bcf5c4ad14"
-  dependencies:
-    duplexer "~0.1.1"
-
 stream-http@^2.0.0, stream-http@^2.7.2:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.8.0.tgz#fd86546dac9b1c91aff8fc5d287b98fafb41bc10"
@@ -7448,19 +7367,6 @@ tapable@^0.2.7:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
 
-tape@2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/tape/-/tape-2.3.0.tgz#0dfeec709227fbcc9170abe7f046962b271431db"
-  dependencies:
-    deep-equal "~0.1.0"
-    defined "~0.0.0"
-    inherits "~2.0.1"
-    jsonify "~0.0.0"
-    resumer "~0.0.0"
-    split "~0.2.10"
-    stream-combiner "~0.0.2"
-    through "~2.3.4"
-
 tar-pack@^3.4.0:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
@@ -7520,7 +7426,7 @@ through2@^2.0.0, through2@^2.0.2:
     readable-stream "^2.1.5"
     xtend "~4.0.1"
 
-through@2, "through@>=2.2.7 <3", through@^2.3.6, through@~2.3.4:
+through@2, "through@>=2.2.7 <3", through@^2.3.6:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
@@ -7598,12 +7504,19 @@ to-regex@^3.0.1:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
-tough-cookie@>=0.12.0, tough-cookie@>=2.3.3, tough-cookie@^2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
+tough-cookie@>=2.3.3, tough-cookie@^2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
   dependencies:
     punycode "^1.4.1"
 
+tough-cookie@~2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
+  dependencies:
+    psl "^1.1.24"
+    punycode "^1.4.1"
+
 tr46@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/tr46/-/tr46-1.0.1.tgz#a8b13fd6bfd2489519674ccde55ba3693b706d09"
@@ -7644,7 +7557,7 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-tunnel-agent@~0.4.0, tunnel-agent@~0.4.1:
+tunnel-agent@~0.4.1:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
 
@@ -7773,11 +7686,9 @@ url@^0.11.0, url@~0.11.0:
     punycode "1.3.2"
     querystring "0.2.0"
 
-urlgrey@0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/urlgrey/-/urlgrey-0.4.0.tgz#f065357040fb35c3b311d4e5dc36484d96dbea06"
-  dependencies:
-    tape "2.3.0"
+urlgrey@^0.4.4:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/urlgrey/-/urlgrey-0.4.4.tgz#892fe95960805e85519f1cd4389f2cb4cbb7652f"
 
 use@^2.0.0:
   version "2.0.2"
@@ -7812,6 +7723,10 @@ uuid@^3.0.0, uuid@^3.1.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
 
+uuid@^3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
+
 uws@~9.14.0:
   version "9.14.0"
   resolved "https://registry.yarnpkg.com/uws/-/uws-9.14.0.tgz#fac8386befc33a7a3705cbd58dc47b430ca4dd95"

From 6b1d431a89f3f7438d01d8cc98546397f0983287 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 18 Sep 2018 10:21:55 -0400
Subject: [PATCH 506/911] Revert "perf: avoid unnecessary re-renders when
 computed property value did not change (#7824)"

This reverts commit 653aac2c57d15f0e93a2c1cc7e6fad156658df19.
---
 src/core/instance/state.js                  |  13 ++-
 src/core/observer/watcher.js                | 101 +++++++-------------
 test/unit/features/options/computed.spec.js |  36 -------
 test/unit/modules/observer/watcher.spec.js  |  54 +----------
 4 files changed, 51 insertions(+), 153 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 326f7f36bf7..b1549b0dcc4 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -2,7 +2,7 @@
 
 import config from '../config'
 import Watcher from '../observer/watcher'
-import { pushTarget, popTarget } from '../observer/dep'
+import Dep, { pushTarget, popTarget } from '../observer/dep'
 import { isUpdatingChildComponent } from './lifecycle'
 
 import {
@@ -164,7 +164,7 @@ export function getData (data: Function, vm: Component): any {
   }
 }
 
-const computedWatcherOptions = { computed: true }
+const computedWatcherOptions = { lazy: true }
 
 function initComputed (vm: Component, computed: Object) {
   // $flow-disable-line
@@ -244,8 +244,13 @@ function createComputedGetter (key) {
   return function computedGetter () {
     const watcher = this._computedWatchers && this._computedWatchers[key]
     if (watcher) {
-      watcher.depend()
-      return watcher.evaluate()
+      if (watcher.dirty) {
+        watcher.evaluate()
+      }
+      if (Dep.target) {
+        watcher.depend()
+      }
+      return watcher.value
     }
   }
 }
diff --git a/src/core/observer/watcher.js b/src/core/observer/watcher.js
index 725480d9215..3c4e533c08b 100644
--- a/src/core/observer/watcher.js
+++ b/src/core/observer/watcher.js
@@ -29,11 +29,10 @@ export default class Watcher {
   id: number;
   deep: boolean;
   user: boolean;
-  computed: boolean;
+  lazy: boolean;
   sync: boolean;
   dirty: boolean;
   active: boolean;
-  dep: Dep;
   deps: Array<Dep>;
   newDeps: Array<Dep>;
   depIds: SimpleSet;
@@ -58,16 +57,16 @@ export default class Watcher {
     if (options) {
       this.deep = !!options.deep
       this.user = !!options.user
-      this.computed = !!options.computed
+      this.lazy = !!options.lazy
       this.sync = !!options.sync
       this.before = options.before
     } else {
-      this.deep = this.user = this.computed = this.sync = false
+      this.deep = this.user = this.lazy = this.sync = false
     }
     this.cb = cb
     this.id = ++uid // uid for batching
     this.active = true
-    this.dirty = this.computed // for computed watchers
+    this.dirty = this.lazy // for lazy watchers
     this.deps = []
     this.newDeps = []
     this.depIds = new Set()
@@ -90,12 +89,9 @@ export default class Watcher {
         )
       }
     }
-    if (this.computed) {
-      this.value = undefined
-      this.dep = new Dep()
-    } else {
-      this.value = this.get()
-    }
+    this.value = this.lazy
+      ? undefined
+      : this.get()
   }
 
   /**
@@ -166,24 +162,8 @@ export default class Watcher {
    */
   update () {
     /* istanbul ignore else */
-    if (this.computed) {
-      // A computed property watcher has two modes: lazy and activated.
-      // It initializes as lazy by default, and only becomes activated when
-      // it is depended on by at least one subscriber, which is typically
-      // another computed property or a component's render function.
-      if (this.dep.subs.length === 0) {
-        // In lazy mode, we don't want to perform computations until necessary,
-        // so we simply mark the watcher as dirty. The actual computation is
-        // performed just-in-time in this.evaluate() when the computed property
-        // is accessed.
-        this.dirty = true
-      } else {
-        // In activated mode, we want to proactively perform the computation
-        // but only notify our subscribers when the value has indeed changed.
-        this.getAndInvoke(() => {
-          this.dep.notify()
-        })
-      }
+    if (this.lazy) {
+      this.dirty = true
     } else if (this.sync) {
       this.run()
     } else {
@@ -197,54 +177,47 @@ export default class Watcher {
    */
   run () {
     if (this.active) {
-      this.getAndInvoke(this.cb)
-    }
-  }
-
-  getAndInvoke (cb: Function) {
-    const value = this.get()
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      const oldValue = this.value
-      this.value = value
-      this.dirty = false
-      if (this.user) {
-        try {
-          cb.call(this.vm, value, oldValue)
-        } catch (e) {
-          handleError(e, this.vm, `callback for watcher "${this.expression}"`)
+      const value = this.get()
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        const oldValue = this.value
+        this.value = value
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue)
+          } catch (e) {
+            handleError(e, this.vm, `callback for watcher "${this.expression}"`)
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue)
         }
-      } else {
-        cb.call(this.vm, value, oldValue)
       }
     }
   }
 
   /**
-   * Evaluate and return the value of the watcher.
-   * This only gets called for computed property watchers.
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
    */
   evaluate () {
-    if (this.dirty) {
-      this.value = this.get()
-      this.dirty = false
-    }
-    return this.value
+    this.value = this.get()
+    this.dirty = false
   }
 
   /**
-   * Depend on this watcher. Only for computed property watchers.
+   * Depend on all deps collected by this watcher.
    */
   depend () {
-    if (this.dep && Dep.target) {
-      this.dep.depend()
+    let i = this.deps.length
+    while (i--) {
+      this.deps[i].depend()
     }
   }
 
diff --git a/test/unit/features/options/computed.spec.js b/test/unit/features/options/computed.spec.js
index fc606072e7d..edc20bad3bf 100644
--- a/test/unit/features/options/computed.spec.js
+++ b/test/unit/features/options/computed.spec.js
@@ -216,40 +216,4 @@ describe('Options computed', () => {
     })
     expect(() => vm.a).toThrowError('rethrow')
   })
-
-  // #7767
-  it('should avoid unnecessary re-renders', done => {
-    const computedSpy = jasmine.createSpy('computed')
-    const updatedSpy = jasmine.createSpy('updated')
-    const vm = new Vue({
-      data: {
-        msg: 'bar'
-      },
-      computed: {
-        a () {
-          computedSpy()
-          return this.msg !== 'foo'
-        }
-      },
-      template: `<div>{{ a }}</div>`,
-      updated: updatedSpy
-    }).$mount()
-
-    expect(vm.$el.textContent).toBe('true')
-    expect(computedSpy.calls.count()).toBe(1)
-    expect(updatedSpy.calls.count()).toBe(0)
-
-    vm.msg = 'baz'
-    waitForUpdate(() => {
-      expect(vm.$el.textContent).toBe('true')
-      expect(computedSpy.calls.count()).toBe(2)
-      expect(updatedSpy.calls.count()).toBe(0)
-    }).then(() => {
-      vm.msg = 'foo'
-    }).then(() => {
-      expect(vm.$el.textContent).toBe('false')
-      expect(computedSpy.calls.count()).toBe(3)
-      expect(updatedSpy.calls.count()).toBe(1)
-    }).then(done)
-  })
 })
diff --git a/test/unit/modules/observer/watcher.spec.js b/test/unit/modules/observer/watcher.spec.js
index ba96b28ffce..724a3cc8637 100644
--- a/test/unit/modules/observer/watcher.spec.js
+++ b/test/unit/modules/observer/watcher.spec.js
@@ -144,70 +144,26 @@ describe('Watcher', () => {
     }).then(done)
   })
 
-  it('computed mode, lazy', done => {
-    let getterCallCount = 0
+  it('lazy mode', done => {
     const watcher = new Watcher(vm, function () {
-      getterCallCount++
       return this.a + this.b.d
-    }, null, { computed: true })
-
-    expect(getterCallCount).toBe(0)
-    expect(watcher.computed).toBe(true)
+    }, null, { lazy: true })
+    expect(watcher.lazy).toBe(true)
     expect(watcher.value).toBeUndefined()
     expect(watcher.dirty).toBe(true)
-    expect(watcher.dep).toBeTruthy()
-
-    const value = watcher.evaluate()
-    expect(getterCallCount).toBe(1)
-    expect(value).toBe(5)
+    watcher.evaluate()
     expect(watcher.value).toBe(5)
     expect(watcher.dirty).toBe(false)
-
-    // should not get again if not dirty
-    watcher.evaluate()
-    expect(getterCallCount).toBe(1)
-
     vm.a = 2
     waitForUpdate(() => {
-      expect(getterCallCount).toBe(1)
       expect(watcher.value).toBe(5)
       expect(watcher.dirty).toBe(true)
-
-      const value = watcher.evaluate()
-      expect(getterCallCount).toBe(2)
-      expect(value).toBe(6)
+      watcher.evaluate()
       expect(watcher.value).toBe(6)
       expect(watcher.dirty).toBe(false)
     }).then(done)
   })
 
-  it('computed mode, activated', done => {
-    let getterCallCount = 0
-    const watcher = new Watcher(vm, function () {
-      getterCallCount++
-      return this.a + this.b.d
-    }, null, { computed: true })
-
-    // activate by mocking a subscriber
-    const subMock = jasmine.createSpyObj('sub', ['update'])
-    watcher.dep.addSub(subMock)
-
-    const value = watcher.evaluate()
-    expect(getterCallCount).toBe(1)
-    expect(value).toBe(5)
-
-    vm.a = 2
-    waitForUpdate(() => {
-      expect(getterCallCount).toBe(2)
-      expect(subMock.update).toHaveBeenCalled()
-
-      // since already computed, calling evaluate again should not trigger
-      // getter
-      watcher.evaluate()
-      expect(getterCallCount).toBe(2)
-    }).then(done)
-  })
-
   it('teardown', done => {
     const watcher = new Watcher(vm, 'b.c', spy)
     watcher.teardown()

From 79cabadeace0e01fb63aa9f220f41193c0ca93af Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 19 Sep 2018 14:18:17 -0400
Subject: [PATCH 507/911] chore: fix OpenCollective silver tier

---
 BACKERS.md | 8 +++++++-
 README.md  | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index ce015ced499..0f87853d2ab 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -226,6 +226,12 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 </table>
 <!--silver end-->
 
+<h4 align="center">Silver via OpenCollective</h4>
+
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/0/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/0/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/1/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/1/avatar.svg"></a>
+<a href="https://opencollective.com/vuejs/tiers/silver-sponsors/2/website" target="_blank" rel="noopener noreferrer"><img src="https://opencollective.com/vuejs/tiers/silver-sponsors/2/avatar.svg"></a>
+
 <h2 align="center">Bronze via Patreon</h2>
 
 <!--bronze start-->
diff --git a/README.md b/README.md
index 8365c2f099c..a0a3915eb3b 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>

From 9d19f84d4e7a281484a6eb3f92e6a266a1adc243 Mon Sep 17 00:00:00 2001
From: Spencer Davies <spencer1573@users.noreply.github.com>
Date: Mon, 1 Oct 2018 23:56:24 -0600
Subject: [PATCH 508/911] docs(readme): grammar fix, extra 'the' (#8887)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a0a3915eb3b..59db3ca52b6 100644
--- a/README.md
+++ b/README.md
@@ -290,7 +290,7 @@ To check out [live examples](https://vuejs.org/v2/examples/) and docs, visit [vu
 
 ## Questions
 
-For questions and support please use the [the official forum](http://forum.vuejs.org) or [community chat](https://chat.vuejs.org/). The issue list of this repo is **exclusively** for bug reports and feature requests.
+For questions and support please use [the official forum](http://forum.vuejs.org) or [community chat](https://chat.vuejs.org/). The issue list of this repo is **exclusively** for bug reports and feature requests.
 
 ## Issues
 

From 704b22e853ecbba7c3d8ba58615d601cc1b985ba Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 26 Sep 2018 10:51:14 -0400
Subject: [PATCH 509/911] chore: new sponsor

---
 BACKERS.md | 7 ++++++-
 README.md  | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 0f87853d2ab..bb8042dd107 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -189,6 +189,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/kintohub.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://opteo.com/vue" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 59db3ca52b6..013b8e7dcd9 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -214,6 +214,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/kintohub.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://opteo.com/vue" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From e9888e2d51f1dbb971acb1c9db10fb458a5c7eb7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 4 Oct 2018 11:01:49 -0400
Subject: [PATCH 510/911] chore: update backers

---
 BACKERS.md | 43 ++++++++++++++++++++++---------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index bb8042dd107..b3f349474d3 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -315,12 +315,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik
+- errorrik 
 - Alex Balashov
 - Konstantin Levinski
 - Evan Leonardi
 - Ernest Sim
 - Blaise Laflamme
+- Dilettant 
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -331,7 +332,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Keisuke KITA
 - Jack Barham
 - Santa Cruz
-- Tom Conlon
 - Simon East
 - Benjamin Listwon
 - Lars Andreas Ness
@@ -341,28 +341,22 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解
-- Paul Straw
+- 叶解 
 - Jake Ingman
 - Barbara Liau
-- 4
+- 4 
 - Jarek Tkaczyk
-- Sean MacIsaac
-- Xiaojie LI
 - David Hess
 - Niannian Modisette
-- Dariusz Jastrzębski
 - Ivan Sieder
 - Matt Jones
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale
+- Edithvale 
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
-- Chengzhi Yin
 - Zoran Knezevic
-- James Simpson
 - Pascal Germain
 - Pierre Vanhulst
 - Jon Hobbs-Smith
@@ -373,12 +367,10 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Jeremy Tan
 - Jim Raden
 - Fille Åström
-- Nicholas Reid
 - Samuel Smith
 - Tyler Scott
 - Thong Yong Jun
 - Tai Shi Lgin
-- Bryan Gruneberg
 - Matias Verdier
 - Jamie McElwain
 - Vivekanandhan Natarajan
@@ -390,7 +382,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Eric Githinji
 - Chih-Hsuan, Fan
 - Jordan Oroshiba
-- Brian Jorden
 - Cliff Hess
 - Joe Ray Gregory
 - RADD Creative
@@ -410,31 +401,41 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Jere Sjöroos
 - Wakana Seki
 - David Ang
-- Dom
+- Dom 
 - Ben Hong
 - David Kaplan
 - John Cleveland
 - Jaeyoung Lee
-- Amor
+- Amor 
 - Tom Ootes
 - Andy Foster
 - Blake Campbell
 - Joe Cochran
 - Matt Sencenbaugh
 - The Commission Cafe, LLC.
-- Leon Seipp
 - Daniel Mattingley
-- HANDI PRIYONO
-- Zhenping WANG
 - Teon Ooi
 - Hannes Kochniß
 - Juan Bermudez
-- Seiji Komatsu
 - Alberto T. Payero Mota
 - Colt Borg
-- Luis F Rocha
 - Chris Calo
 - Milan Zivkovic
+- Christo Crampton
+- Jason Rys
+- Johnny Austin
+- Aaron Hung
+- Soichiro Isshiki
+- Tom Meagher
+- Rob Mellett
+- Abraham Arango
+- Marko Bošković
+- Chris Lind
+- Andrej 
+- Ed Linklater
+- Garion Herman
+- Chris Bemister
+- Anfrew Willis
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>

From 0737d11a146818d975266953ee547a12a63a1a41 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 4 Oct 2018 11:03:55 -0400
Subject: [PATCH 511/911] chore: new sponsor

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index b3f349474d3..8708b9c2314 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -194,6 +194,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://issue.sh" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/issue-sh.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 013b8e7dcd9..a73827ac5b5 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://issue.sh" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/issue-sh.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 6514a37a5ac8d9c3f8edf8b6dc21b477ec97cc02 Mon Sep 17 00:00:00 2001
From: Shyam Chen <shyamchen1994@gmail.com>
Date: Tue, 23 Oct 2018 03:14:39 +0800
Subject: [PATCH 512/911] chore(readme): correct badge link (#8729)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a73827ac5b5..46ad1f281e1 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 <p align="center"><a href="https://vuejs.org" target="_blank" rel="noopener noreferrer"><img width="100" src="https://vuejs.org/images/logo.png" alt="Vue logo"></a></p>
 
 <p align="center">
-  <a href="https://circleci.com/gh/vuejs/vue/tree/dev"><img src="https://img.shields.io/circleci/project/vuejs/vue/dev.svg" alt="Build Status"></a>
+  <a href="https://circleci.com/gh/vuejs/vue/tree/dev"><img src="https://img.shields.io/circleci/project/github/vuejs/vue/dev.svg" alt="Build Status"></a>
   <a href="https://codecov.io/github/vuejs/vue?branch=dev"><img src="https://img.shields.io/codecov/c/github/vuejs/vue/dev.svg" alt="Coverage Status"></a>
   <a href="https://npmcharts.com/compare/vue?minimal=true"><img src="https://img.shields.io/npm/dm/vue.svg" alt="Downloads"></a>
   <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/v/vue.svg" alt="Version"></a>

From 16021f321c6a1cf9ffed8a77e6ab8cf9a3b21134 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 22 Oct 2018 15:21:28 -0400
Subject: [PATCH 513/911] chore: update suacelabs link

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 46ad1f281e1..6cea39b7f5a 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
   <a href="https://www.npmjs.com/package/vue"><img src="https://img.shields.io/npm/l/vue.svg" alt="License"></a>
   <a href="https://chat.vuejs.org/"><img src="https://img.shields.io/badge/chat-on%20discord-7289da.svg" alt="Chat"></a>
   <br>
-  <a href="https://saucelabs.com/u/vuejs"><img src="https://saucelabs.com/browser-matrix/vuejs.svg" alt="Sauce Test Status"></a>
+  <a href="https://app.saucelabs.com/builds/50f8372d79f743a3b25fb6ca4851ca4c"><img src="https://app.saucelabs.com/buildstatus/vuejs" alt="Build Status"></a>
 </p>
 
 <h2 align="center">Supporting Vue.js</h2>
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>

From c356b29e322ecb2a13d041f99d69dfc883c68248 Mon Sep 17 00:00:00 2001
From: Akitaka Oba <akitaka0405@gmail.com>
Date: Tue, 23 Oct 2018 04:55:04 +0900
Subject: [PATCH 514/911] chore: add placeholder to firebase example (#7979)

---
 examples/firebase/index.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/firebase/index.html b/examples/firebase/index.html
index 5b1cf3d4a5e..7bab1a70b55 100644
--- a/examples/firebase/index.html
+++ b/examples/firebase/index.html
@@ -21,8 +21,8 @@
         </li>
       </ul>
       <form id="form" v-on:submit.prevent="addUser">
-        <input v-model="newUser.name">
-        <input v-model="newUser.email">
+        <input v-model="newUser.name" placeholder="Add Name">
+        <input v-model="newUser.email" placeholder="Add Email">
         <input type="submit" value="Add User">
       </form>
       <ul class="errors">

From 6e5909869c0f2896c5d4b7d8b1145c50803136b4 Mon Sep 17 00:00:00 2001
From: HcySunYang <HcySunYang@outlook.com>
Date: Tue, 23 Oct 2018 04:04:06 +0800
Subject: [PATCH 515/911] refactor: set should return early if original def has
 getter but no setter (#7981)

---
 src/core/observer/index.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index 35469aaf16a..e373716c9f7 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -179,6 +179,8 @@ export function defineReactive (
       if (process.env.NODE_ENV !== 'production' && customSetter) {
         customSetter()
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) return
       if (setter) {
         setter.call(obj, newVal)
       } else {

From 4dec3b52c9b71f816e6b86d42ea53e9f2e559646 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E6=98=A5?= <1219571443@qq.com>
Date: Tue, 23 Oct 2018 04:04:54 +0800
Subject: [PATCH 516/911] chore: remove useless code (#8002)

---
 src/server/webpack-plugin/client.js | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/server/webpack-plugin/client.js b/src/server/webpack-plugin/client.js
index 4d9b6813031..ae2a2498672 100644
--- a/src/server/webpack-plugin/client.js
+++ b/src/server/webpack-plugin/client.js
@@ -54,12 +54,6 @@ export default class VueSSRClientPlugin {
         }
       })
 
-      // const debug = (file, obj) => {
-      //   require('fs').writeFileSync(__dirname + '/' + file, JSON.stringify(obj, null, 2))
-      // }
-      // debug('stats.json', stats)
-      // debug('client-manifest.json', manifest)
-
       const json = JSON.stringify(manifest, null, 2)
       compilation.assets[this.options.filename] = {
         source: () => json,

From 99a51b452fa13fc4392e87215a8c3024adf5f710 Mon Sep 17 00:00:00 2001
From: Kael <kaelwd@gmail.com>
Date: Tue, 23 Oct 2018 07:09:23 +1100
Subject: [PATCH 517/911] fix(types): make VNodeDirective properties optional,
 fix #8013 (#8003)

---
 types/options.d.ts         |  6 +++++-
 types/test/options-test.ts |  4 ++++
 types/vnode.d.ts           | 12 ++++++------
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 25eb8a0fdf3..8ae8f93599c 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -160,9 +160,13 @@ export interface WatchOptionsWithHandler<T> extends WatchOptions {
   handler: WatchHandler<T>;
 }
 
+export interface DirectiveBinding extends Readonly<VNodeDirective> {
+  readonly modifiers: { [key: string]: boolean };
+}
+
 export type DirectiveFunction = (
   el: HTMLElement,
-  binding: VNodeDirective,
+  binding: DirectiveBinding,
   vnode: VNode,
   oldVnode: VNode
 ) => void;
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 17a54fd360b..83972d05c1d 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -154,6 +154,10 @@ Vue.component('component', {
       props: {
         myProp: "bar"
       },
+      directives: [{
+        name: 'a',
+        value: 'foo'
+      }],
       domProps: {
         innerHTML: "baz"
       },
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index 5754c433dcd..9247c474575 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -58,10 +58,10 @@ export interface VNodeData {
 }
 
 export interface VNodeDirective {
-  readonly name: string;
-  readonly value: any;
-  readonly oldValue: any;
-  readonly expression: any;
-  readonly arg: string;
-  readonly modifiers: { [key: string]: boolean };
+  name: string;
+  value?: any;
+  oldValue?: any;
+  expression?: any;
+  arg?: string;
+  modifiers?: { [key: string]: boolean };
 }

From 19008ecd12b517de0292eb2b7f277fc404c4c417 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 22 Oct 2018 16:21:01 -0400
Subject: [PATCH 518/911] ci: use customized ci image

---
 .circleci/config.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8abef177ef6..064192b36d6 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3,7 +3,7 @@ version: 2
 defaults: &defaults
   working_directory: ~/project/vue
   docker:
-    - image: circleci/node:6-browsers
+    - image: vuejs/ci
 
 jobs:
   install:

From 7ae1f4e0b53e268cb887c74a63352b6773f1f879 Mon Sep 17 00:00:00 2001
From: msrahman07 <36062451+msrahman07@users.noreply.github.com>
Date: Tue, 23 Oct 2018 12:52:19 -0700
Subject: [PATCH 519/911] chore: tweak description (#8509)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6cea39b7f5a..6593434672b 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 
 <h2 align="center">Supporting Vue.js</h2>
 
-Vue.js is an MIT-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
+Vue.js is an MIT-licensed open source project with its ongoing development made possible entirely by the support of these awesome [backers](https://github.com/vuejs/vue/blob/dev/BACKERS.md). If you'd like to join them, please consider:
 
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou).
 - [Become a backer or sponsor on Open Collective](https://opencollective.com/vuejs).

From 5e912976c45ca19d8524657bffe6883723027ed2 Mon Sep 17 00:00:00 2001
From: sqal <sqal08@gmail.com>
Date: Tue, 23 Oct 2018 21:52:44 +0200
Subject: [PATCH 520/911] chore: update reference to already defined variable
 (#8518)

---
 src/core/instance/events.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index 587799969c2..dbf45633eae 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -49,7 +49,7 @@ export function eventsMixin (Vue: Class<Component>) {
     const vm: Component = this
     if (Array.isArray(event)) {
       for (let i = 0, l = event.length; i < l; i++) {
-        this.$on(event[i], fn)
+        vm.$on(event[i], fn)
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn)
@@ -83,7 +83,7 @@ export function eventsMixin (Vue: Class<Component>) {
     // array of events
     if (Array.isArray(event)) {
       for (let i = 0, l = event.length; i < l; i++) {
-        this.$off(event[i], fn)
+        vm.$off(event[i], fn)
       }
       return vm
     }

From af819a07dd8c2afc94e670e81b5e248f82794334 Mon Sep 17 00:00:00 2001
From: Sagir Khan <sagirk@users.noreply.github.com>
Date: Wed, 24 Oct 2018 01:23:47 +0530
Subject: [PATCH 521/911] refactor(shared-utils): Improve readability and
 consistency in code comments (#8529)

Improvements that apply to all comments:
- Consistent use of periods
- Consistent use of commas
- Consistent capitalization
- Correct use of articles (a, an, the)

Improvements to specific comments:
- Correct pluralization in the description for helper functions
- Reword for clarity and break into shorter sentences the description
for `polyfillBind` function
- Reword for clarity the description for `genStaticKeys` function
- Add a previously missing description for `looseIndexOf` function

Fixes: https://github.com/vuejs/vue/issues/8528
---
 src/shared/util.js | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/src/shared/util.js b/src/shared/util.js
index e4884734326..d16cc65793b 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -2,8 +2,8 @@
 
 export const emptyObject = Object.freeze({})
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 export function isUndef (v: any): boolean %checks {
   return v === undefined || v === null
 }
@@ -21,7 +21,7 @@ export function isFalse (v: any): boolean %checks {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 export function isPrimitive (value: any): boolean %checks {
   return (
@@ -43,7 +43,7 @@ export function isObject (obj: mixed): boolean %checks {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 const _toString = Object.prototype.toString
 
@@ -83,7 +83,7 @@ export function toString (val: any): string {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 export function toNumber (val: string): number | string {
@@ -115,12 +115,12 @@ export function makeMap (
 export const isBuiltInTag = makeMap('slot,component', true)
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 export const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is')
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 export function remove (arr: Array<any>, item: any): Array<any> | void {
   if (arr.length) {
@@ -132,7 +132,7 @@ export function remove (arr: Array<any>, item: any): Array<any> | void {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 const hasOwnProperty = Object.prototype.hasOwnProperty
 export function hasOwn (obj: Object | Array<*>, key: string): boolean {
@@ -174,11 +174,11 @@ export const hyphenate = cached((str: string): string => {
 })
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -243,7 +243,7 @@ export function toObject (arr: Array<any>): Object {
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 export function noop (a?: any, b?: any, c?: any) {}
 
@@ -253,12 +253,12 @@ export function noop (a?: any, b?: any, c?: any) {}
 export const no = (a?: any, b?: any, c?: any) => false
 
 /**
- * Return same value
+ * Return the same value.
  */
 export const identity = (_: any) => _
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 export function genStaticKeys (modules: Array<ModuleOptions>): string {
   return modules.reduce((keys, m) => {
@@ -303,6 +303,11 @@ export function looseEqual (a: any, b: any): boolean {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 export function looseIndexOf (arr: Array<mixed>, val: mixed): number {
   for (let i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) return i

From 88f687cb26f0f7f1ef995647448244eb8e7a6877 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AE=8B=E9=93=84=E8=BF=90?= <fnlctrl@gmail.com>
Date: Wed, 24 Oct 2018 04:01:29 +0800
Subject: [PATCH 522/911] refactor(transition): replace nested closure with
 static ones (#8547)

---
 src/platforms/web/runtime/components/transition.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/components/transition.js b/src/platforms/web/runtime/components/transition.js
index 6111d8cbbcb..84fe82984a1 100644
--- a/src/platforms/web/runtime/components/transition.js
+++ b/src/platforms/web/runtime/components/transition.js
@@ -76,6 +76,10 @@ function isSameChild (child: VNode, oldChild: VNode): boolean {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+const isNotTextNode = (c: VNode) => c.tag || isAsyncPlaceholder(c)
+
+const isVShowDirective = d => d.name === 'show'
+
 export default {
   name: 'transition',
   props: transitionProps,
@@ -88,7 +92,7 @@ export default {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter((c: VNode) => c.tag || isAsyncPlaceholder(c))
+    children = children.filter(isNotTextNode)
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -153,7 +157,7 @@ export default {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(d => d.name === 'show')) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true
     }
 

From 390ff8ede828f75795d1a880072159e3fc549e81 Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Tue, 23 Oct 2018 21:26:20 +0100
Subject: [PATCH 523/911] refactor: add missing else in genNode (#8600)

---
 src/compiler/codegen/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 1c912c4d96f..c0b57a19135 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -435,7 +435,7 @@ function needsNormalization (el: ASTElement): boolean {
 function genNode (node: ASTNode, state: CodegenState): string {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)

From 4f111f9225f938f7a2456d341626dbdfd210ff0c Mon Sep 17 00:00:00 2001
From: JJJ <569628556@qq.com>
Date: Wed, 24 Oct 2018 04:52:02 +0800
Subject: [PATCH 524/911] refactor: empty function replace to noop (#8791)

---
 src/core/observer/watcher.js       | 5 +++--
 src/platforms/weex/util/element.js | 4 ++--
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/core/observer/watcher.js b/src/core/observer/watcher.js
index 3c4e533c08b..5fbcdf347f2 100644
--- a/src/core/observer/watcher.js
+++ b/src/core/observer/watcher.js
@@ -6,7 +6,8 @@ import {
   isObject,
   parsePath,
   _Set as Set,
-  handleError
+  handleError,
+  noop
 } from '../util/index'
 
 import { traverse } from './traverse'
@@ -80,7 +81,7 @@ export default class Watcher {
     } else {
       this.getter = parsePath(expOrFn)
       if (!this.getter) {
-        this.getter = function () {}
+        this.getter = noop
         process.env.NODE_ENV !== 'production' && warn(
           `Failed watching path: "${expOrFn}" ` +
           'Watcher only accepts simple dot-delimited paths. ' +
diff --git a/src/platforms/weex/util/element.js b/src/platforms/weex/util/element.js
index 97e97febbe5..2bac590ba22 100644
--- a/src/platforms/weex/util/element.js
+++ b/src/platforms/weex/util/element.js
@@ -4,7 +4,7 @@
 // makeMap() due to potential side effects, so these variables end up
 // bloating the web builds.
 
-import { makeMap } from 'shared/util'
+import { makeMap, noop } from 'shared/util'
 
 export const isReservedTag = makeMap(
   'template,script,style,element,content,slot,link,meta,svg,view,' +
@@ -46,7 +46,7 @@ export function isUnknownElement (tag?: string): boolean {
 export function query (el: string | Element, document: Object) {
   // document is injected by weex factory wrapper
   const placeholder = document.createComment('root')
-  placeholder.hasAttribute = placeholder.removeAttribute = function () {} // hack for patch
+  placeholder.hasAttribute = placeholder.removeAttribute = noop // hack for patch
   document.documentElement.appendChild(placeholder)
   return placeholder
 }

From 265dd457789bf726f95dd0578c1ce65a8b6ae9fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AE=8B=E9=93=84=E8=BF=90?= <fnlctrl@gmail.com>
Date: Wed, 24 Oct 2018 04:54:35 +0800
Subject: [PATCH 525/911] refactor(class-util): cache whitespace regex (#8743)

---
 src/platforms/web/runtime/class-util.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/class-util.js b/src/platforms/web/runtime/class-util.js
index 709526c238a..12f0b5e243e 100644
--- a/src/platforms/web/runtime/class-util.js
+++ b/src/platforms/web/runtime/class-util.js
@@ -1,5 +1,7 @@
 /* @flow */
 
+const whitespaceRE = /\s+/
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -13,7 +15,7 @@ export function addClass (el: HTMLElement, cls: ?string) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(c => el.classList.add(c))
+      cls.split(whitespaceRE).forEach(c => el.classList.add(c))
     } else {
       el.classList.add(cls)
     }
@@ -38,7 +40,7 @@ export function removeClass (el: HTMLElement, cls: ?string) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(c => el.classList.remove(c))
+      cls.split(whitespaceRE).forEach(c => el.classList.remove(c))
     } else {
       el.classList.remove(cls)
     }

From 93d1f5f8d6ac80369718ec7f845da9a36f2cf86a Mon Sep 17 00:00:00 2001
From: Manoel <manoel.lobo@gmail.com>
Date: Tue, 23 Oct 2018 19:22:19 -0300
Subject: [PATCH 526/911] chore: add extension to .eslintrc (#8904)

---
 .eslintrc => .eslintrc.json | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename .eslintrc => .eslintrc.json (100%)

diff --git a/.eslintrc b/.eslintrc.json
similarity index 100%
rename from .eslintrc
rename to .eslintrc.json

From 12e8efc2e70123de31204800b195917a0ce77766 Mon Sep 17 00:00:00 2001
From: Vikram Rangaraj <vik120@icloud.com>
Date: Tue, 23 Oct 2018 15:40:55 -0700
Subject: [PATCH 527/911] workflow: upgraded to babel 7 (#8948)

---
 .babelrc                       |    8 -
 .babelrc.js                    |   23 +
 package.json                   |   25 +-
 test/ssr/fixtures/async-foo.js |    2 +-
 test/ssr/fixtures/split.js     |    2 +-
 test/ssr/jasmine.js            |    9 +
 test/ssr/jasmine.json          |    9 -
 test/weex/jasmine.js           |    9 +
 test/weex/jasmine.json         |    9 -
 yarn.lock                      | 2723 ++++++++++++++++++++++++++------
 10 files changed, 2297 insertions(+), 522 deletions(-)
 delete mode 100644 .babelrc
 create mode 100644 .babelrc.js
 create mode 100644 test/ssr/jasmine.js
 delete mode 100644 test/ssr/jasmine.json
 create mode 100644 test/weex/jasmine.js
 delete mode 100644 test/weex/jasmine.json

diff --git a/.babelrc b/.babelrc
deleted file mode 100644
index 605b14091c4..00000000000
--- a/.babelrc
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "presets": ["es2015", "flow-vue"],
-  "plugins": ["transform-vue-jsx", "syntax-dynamic-import"],
-  "ignore": [
-    "dist/*.js",
-    "packages/**/*.js"
-  ]
-}
diff --git a/.babelrc.js b/.babelrc.js
new file mode 100644
index 00000000000..400866bfa7e
--- /dev/null
+++ b/.babelrc.js
@@ -0,0 +1,23 @@
+const babelPresetFlowVue = {
+  plugins: [
+    require('@babel/plugin-proposal-class-properties'),
+    // require('@babel/plugin-syntax-flow'), // not needed, included in transform-flow-strip-types
+    require('@babel/plugin-transform-flow-strip-types')
+  ]
+}
+
+module.exports = {
+  presets: [
+    require('@babel/preset-env'),
+    // require('babel-preset-flow-vue')
+    babelPresetFlowVue
+  ],
+  plugins: [
+    require('babel-plugin-transform-vue-jsx'),
+    require('@babel/plugin-syntax-dynamic-import')
+  ],
+  ignore: [
+    'dist/*.js',
+    'packages/**/*.js'
+  ]
+}
diff --git a/package.json b/package.json
index c9b82b9bab9..3a255055fb9 100644
--- a/package.json
+++ b/package.json
@@ -30,8 +30,8 @@
     "test:unit": "karma start test/unit/karma.unit.config.js",
     "test:cover": "karma start test/unit/karma.cover.config.js",
     "test:e2e": "npm run build -- web-full-prod,web-server-basic-renderer && node test/e2e/runner.js",
-    "test:weex": "npm run build:weex && jasmine JASMINE_CONFIG_PATH=test/weex/jasmine.json",
-    "test:ssr": "npm run build:ssr && jasmine JASMINE_CONFIG_PATH=test/ssr/jasmine.json",
+    "test:weex": "npm run build:weex && jasmine JASMINE_CONFIG_PATH=test/weex/jasmine.js",
+    "test:ssr": "npm run build:ssr && jasmine JASMINE_CONFIG_PATH=test/ssr/jasmine.js",
     "test:sauce": "npm run sauce -- 0 && npm run sauce -- 1 && npm run sauce -- 2",
     "test:types": "tsc -p ./types/test/tsconfig.json",
     "lint": "eslint --fix src scripts test",
@@ -67,18 +67,21 @@
   },
   "homepage": "https://github.com/vuejs/vue#readme",
   "devDependencies": {
+    "@babel/core": "^7.0.0",
+    "@babel/plugin-proposal-class-properties": "^7.1.0",
+    "@babel/plugin-syntax-dynamic-import": "^7.0.0",
+    "@babel/plugin-syntax-jsx": "^7.0.0",
+    "@babel/plugin-transform-flow-strip-types": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "@babel/register": "^7.0.0",
     "@types/node": "^8.0.33",
     "@types/webpack": "^3.0.13",
     "acorn": "^5.2.1",
-    "babel-core": "^6.25.0",
     "babel-eslint": "^8.0.3",
-    "babel-helper-vue-jsx-merge-props": "^2.0.2",
-    "babel-loader": "^7.0.0",
-    "babel-plugin-istanbul": "^4.1.4",
-    "babel-plugin-syntax-dynamic-import": "^6.18.0",
-    "babel-plugin-syntax-jsx": "^6.18.0",
-    "babel-plugin-transform-vue-jsx": "^3.4.3",
-    "babel-preset-es2015": "^6.24.1",
+    "babel-helper-vue-jsx-merge-props": "^2.0.3",
+    "babel-loader": "^8.0.4",
+    "babel-plugin-istanbul": "^5.1.0",
+    "babel-plugin-transform-vue-jsx": "^4.0.1",
     "babel-preset-flow-vue": "^1.0.0",
     "buble": "^0.19.3",
     "chalk": "^2.3.0",
@@ -125,7 +128,7 @@
     "resolve": "^1.3.3",
     "rollup": "^0.54.1",
     "rollup-plugin-alias": "^1.3.1",
-    "rollup-plugin-babel": "^3.0.2",
+    "rollup-plugin-babel": "^4.0.1",
     "rollup-plugin-buble": "^0.19.2",
     "rollup-plugin-commonjs": "^8.0.0",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
diff --git a/test/ssr/fixtures/async-foo.js b/test/ssr/fixtures/async-foo.js
index 929d73f43c5..59e0b9abce3 100644
--- a/test/ssr/fixtures/async-foo.js
+++ b/test/ssr/fixtures/async-foo.js
@@ -3,7 +3,7 @@ import './test.css'
 import font from './test.woff2'
 import image from './test.png'
 
-module.exports = {
+export default {
   beforeCreate () {
     this.$vnode.ssrContext._registeredComponents.add('__MODULE_ID__')
   },
diff --git a/test/ssr/fixtures/split.js b/test/ssr/fixtures/split.js
index 5cd38508f2b..0282f1035ad 100644
--- a/test/ssr/fixtures/split.js
+++ b/test/ssr/fixtures/split.js
@@ -19,7 +19,7 @@ export default context => {
     // simulate router.onReady
     Foo().then(comp => {
       // resolve now to make the render sync
-      Foo.resolved = Vue.extend(comp)
+      Foo.resolved = Vue.extend(comp.default)
       resolve(vm)
     })
   })
diff --git a/test/ssr/jasmine.js b/test/ssr/jasmine.js
new file mode 100644
index 00000000000..dfd70f7c253
--- /dev/null
+++ b/test/ssr/jasmine.js
@@ -0,0 +1,9 @@
+module.exports = {
+  spec_dir: 'test/ssr',
+  spec_files: [
+    '*.spec.js'
+  ],
+  helpers: [
+    require.resolve('@babel/register')
+  ]
+}
diff --git a/test/ssr/jasmine.json b/test/ssr/jasmine.json
deleted file mode 100644
index 345ed149d3c..00000000000
--- a/test/ssr/jasmine.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "spec_dir": "test/ssr",
-  "spec_files": [
-    "*.spec.js"
-  ],
-  "helpers": [
-    "../../node_modules/babel-register/lib/node.js"
-  ]
-}
diff --git a/test/weex/jasmine.js b/test/weex/jasmine.js
new file mode 100644
index 00000000000..eaac3099a24
--- /dev/null
+++ b/test/weex/jasmine.js
@@ -0,0 +1,9 @@
+module.exports = {
+  spec_dir: 'test/weex',
+  spec_files: [
+    '**/*[sS]pec.js'
+  ],
+  helpers: [
+    require.resolve('@babel/register')
+  ]
+}
diff --git a/test/weex/jasmine.json b/test/weex/jasmine.json
deleted file mode 100644
index 1dba6930851..00000000000
--- a/test/weex/jasmine.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "spec_dir": "test/weex",
-  "spec_files": [
-    "**/*[sS]pec.js"
-  ],
-  "helpers": [
-    "../../node_modules/babel-register/lib/node.js"
-  ]
-}
diff --git a/yarn.lock b/yarn.lock
index 30951e922dc..03065adc728 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5,12 +5,41 @@
 "@babel/code-frame@7.0.0-beta.40", "@babel/code-frame@^7.0.0-beta.35", "@babel/code-frame@^7.0.0-beta.40":
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-beta.40.tgz#37e2b0cf7c56026b4b21d3927cadf81adec32ac6"
+  integrity sha512-eVXQSbu/RimU6OKcK2/gDJVTFcxXJI4sHbIqw2mhwMZeQ2as/8AhS9DGkEDoHMBBNJZ5B0US63lF56x+KDcxiA==
   dependencies:
     "@babel/highlight" "7.0.0-beta.40"
 
+"@babel/code-frame@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0.tgz#06e2ab19bdb535385559aabb5ba59729482800f8"
+  integrity sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==
+  dependencies:
+    "@babel/highlight" "^7.0.0"
+
+"@babel/core@^7.0.0":
+  version "7.1.2"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.1.2.tgz#f8d2a9ceb6832887329a7b60f9d035791400ba4e"
+  integrity sha512-IFeSSnjXdhDaoysIlev//UzHZbdEmm7D0EIH2qtse9xK7mXEZQpYjs2P00XlP1qYsYvid79p+Zgg6tz1mp6iVw==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/generator" "^7.1.2"
+    "@babel/helpers" "^7.1.2"
+    "@babel/parser" "^7.1.2"
+    "@babel/template" "^7.1.2"
+    "@babel/traverse" "^7.1.0"
+    "@babel/types" "^7.1.2"
+    convert-source-map "^1.1.0"
+    debug "^3.1.0"
+    json5 "^0.5.0"
+    lodash "^4.17.10"
+    resolve "^1.3.2"
+    semver "^5.4.1"
+    source-map "^0.5.0"
+
 "@babel/generator@7.0.0-beta.40":
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.0.0-beta.40.tgz#ab61f9556f4f71dbd1138949c795bb9a21e302ea"
+  integrity sha512-c91BQcXyTq/5aFV4afgOionxZS1dxWt8OghEx5Q52SKssdGRFSiMKnk9tGkev1pYULPJBqjSDZU2Pcuc58ffZw==
   dependencies:
     "@babel/types" "7.0.0-beta.40"
     jsesc "^2.5.1"
@@ -18,40 +47,651 @@
     source-map "^0.5.0"
     trim-right "^1.0.1"
 
+"@babel/generator@^7.0.0", "@babel/generator@^7.1.2", "@babel/generator@^7.1.3":
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.1.3.tgz#2103ec9c42d9bdad9190a6ad5ff2d456fd7b8673"
+  integrity sha512-ZoCZGcfIJFJuZBqxcY9OjC1KW2lWK64qrX1o4UYL3yshVhwKFYgzpWZ0vvtGMNJdTlvkw0W+HR1VnYN8q3QPFQ==
+  dependencies:
+    "@babel/types" "^7.1.3"
+    jsesc "^2.5.1"
+    lodash "^4.17.10"
+    source-map "^0.5.0"
+    trim-right "^1.0.1"
+
+"@babel/helper-annotate-as-pure@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.0.0.tgz#323d39dd0b50e10c7c06ca7d7638e6864d8c5c32"
+  integrity sha512-3UYcJUj9kvSLbLbUIfQTqzcy5VX7GRZ/CCDrnOaZorFFM01aXp1+GJwuFGV4NDDoAS+mOUyHcO6UD/RfqOks3Q==
+  dependencies:
+    "@babel/types" "^7.0.0"
+
+"@babel/helper-builder-binary-assignment-operator-visitor@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-builder-binary-assignment-operator-visitor/-/helper-builder-binary-assignment-operator-visitor-7.1.0.tgz#6b69628dfe4087798e0c4ed98e3d4a6b2fbd2f5f"
+  integrity sha512-qNSR4jrmJ8M1VMM9tibvyRAHXQs2PmaksQF7c1CGJNipfe3D8p+wgNwgso/P2A2r2mdgBWAXljNWR0QRZAMW8w==
+  dependencies:
+    "@babel/helper-explode-assignable-expression" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
+"@babel/helper-call-delegate@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-call-delegate/-/helper-call-delegate-7.1.0.tgz#6a957f105f37755e8645343d3038a22e1449cc4a"
+  integrity sha512-YEtYZrw3GUK6emQHKthltKNZwszBcHK58Ygcis+gVUrF4/FmTVr5CCqQNSfmvg2y+YDEANyYoaLz/SHsnusCwQ==
+  dependencies:
+    "@babel/helper-hoist-variables" "^7.0.0"
+    "@babel/traverse" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
+"@babel/helper-define-map@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-define-map/-/helper-define-map-7.1.0.tgz#3b74caec329b3c80c116290887c0dd9ae468c20c"
+  integrity sha512-yPPcW8dc3gZLN+U1mhYV91QU3n5uTbx7DUdf8NnPbjS0RMwBuHi9Xt2MUgppmNz7CJxTBWsGczTiEp1CSOTPRg==
+  dependencies:
+    "@babel/helper-function-name" "^7.1.0"
+    "@babel/types" "^7.0.0"
+    lodash "^4.17.10"
+
+"@babel/helper-explode-assignable-expression@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-explode-assignable-expression/-/helper-explode-assignable-expression-7.1.0.tgz#537fa13f6f1674df745b0c00ec8fe4e99681c8f6"
+  integrity sha512-NRQpfHrJ1msCHtKjbzs9YcMmJZOg6mQMmGRB+hbamEdG5PNpaSm95275VD92DvJKuyl0s2sFiDmMZ+EnnvufqA==
+  dependencies:
+    "@babel/traverse" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
 "@babel/helper-function-name@7.0.0-beta.40":
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.40.tgz#9d033341ab16517f40d43a73f2d81fc431ccd7b6"
+  integrity sha512-cK9BVLtOfisSISTTHXKGvBc2OBh65tjEk4PgXhsSnnH0i8RP2v+5RCxoSlh2y/i+l2fxQqKqv++Qo5RMiwmRCA==
   dependencies:
     "@babel/helper-get-function-arity" "7.0.0-beta.40"
     "@babel/template" "7.0.0-beta.40"
     "@babel/types" "7.0.0-beta.40"
 
+"@babel/helper-function-name@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.1.0.tgz#a0ceb01685f73355d4360c1247f582bfafc8ff53"
+  integrity sha512-A95XEoCpb3TO+KZzJ4S/5uW5fNe26DjBGqf1o9ucyLyCmi1dXq/B3c8iaWTfBk3VvetUxl16e8tIrd5teOCfGw==
+  dependencies:
+    "@babel/helper-get-function-arity" "^7.0.0"
+    "@babel/template" "^7.1.0"
+    "@babel/types" "^7.0.0"
+
 "@babel/helper-get-function-arity@7.0.0-beta.40":
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.40.tgz#ac0419cf067b0ec16453e1274f03878195791c6e"
+  integrity sha512-MwquaPznI4cUoZEgHC/XGkddOXtqKqD4DvZDOyJK2LR9Qi6TbMbAhc6IaFoRX7CRTFCmtGeu8gdXW2dBotBBTA==
   dependencies:
     "@babel/types" "7.0.0-beta.40"
 
+"@babel/helper-get-function-arity@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0.tgz#83572d4320e2a4657263734113c42868b64e49c3"
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+  dependencies:
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+
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+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-destructuring/-/plugin-transform-destructuring-7.1.3.tgz#e69ff50ca01fac6cb72863c544e516c2b193012f"
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+    "@babel/helper-plugin-utils" "^7.0.0"
+
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+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-dotall-regex/-/plugin-transform-dotall-regex-7.0.0.tgz#73a24da69bc3c370251f43a3d048198546115e58"
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+    "@babel/helper-regex" "^7.0.0"
+    regexpu-core "^4.1.3"
+
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+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-duplicate-keys/-/plugin-transform-duplicate-keys-7.0.0.tgz#a0601e580991e7cace080e4cf919cfd58da74e86"
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+    "@babel/helper-plugin-utils" "^7.0.0"
+
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+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-exponentiation-operator/-/plugin-transform-exponentiation-operator-7.1.0.tgz#9c34c2ee7fd77e02779cfa37e403a2e1003ccc73"
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+    "@babel/helper-plugin-utils" "^7.0.0"
+
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+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-flow-strip-types/-/plugin-transform-flow-strip-types-7.0.0.tgz#c40ced34c2783985d90d9f9ac77a13e6fb396a01"
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+    "@babel/plugin-syntax-flow" "^7.0.0"
+
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+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-for-of/-/plugin-transform-for-of-7.0.0.tgz#f2ba4eadb83bd17dc3c7e9b30f4707365e1c3e39"
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+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-function-name@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-function-name/-/plugin-transform-function-name-7.1.0.tgz#29c5550d5c46208e7f730516d41eeddd4affadbb"
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+  dependencies:
+    "@babel/helper-function-name" "^7.1.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-literals@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-literals/-/plugin-transform-literals-7.0.0.tgz#2aec1d29cdd24c407359c930cdd89e914ee8ff86"
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+  dependencies:
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+
+"@babel/plugin-transform-modules-amd@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-amd/-/plugin-transform-modules-amd-7.1.0.tgz#f9e0a7072c12e296079b5a59f408ff5b97bf86a8"
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+  dependencies:
+    "@babel/helper-module-transforms" "^7.1.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-modules-commonjs@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-commonjs/-/plugin-transform-modules-commonjs-7.1.0.tgz#0a9d86451cbbfb29bd15186306897c67f6f9a05c"
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+  dependencies:
+    "@babel/helper-module-transforms" "^7.1.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+    "@babel/helper-simple-access" "^7.1.0"
+
+"@babel/plugin-transform-modules-systemjs@^7.0.0":
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.1.3.tgz#2119a3e3db612fd74a19d88652efbfe9613a5db0"
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+  dependencies:
+    "@babel/helper-hoist-variables" "^7.0.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-modules-umd@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-umd/-/plugin-transform-modules-umd-7.1.0.tgz#a29a7d85d6f28c3561c33964442257cc6a21f2a8"
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+  dependencies:
+    "@babel/helper-module-transforms" "^7.1.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-new-target@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-new-target/-/plugin-transform-new-target-7.0.0.tgz#ae8fbd89517fa7892d20e6564e641e8770c3aa4a"
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+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-object-super@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-object-super/-/plugin-transform-object-super-7.1.0.tgz#b1ae194a054b826d8d4ba7ca91486d4ada0f91bb"
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+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+    "@babel/helper-replace-supers" "^7.1.0"
+
+"@babel/plugin-transform-parameters@^7.1.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-parameters/-/plugin-transform-parameters-7.1.0.tgz#44f492f9d618c9124026e62301c296bf606a7aed"
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+  dependencies:
+    "@babel/helper-call-delegate" "^7.1.0"
+    "@babel/helper-get-function-arity" "^7.0.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-regenerator@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-regenerator/-/plugin-transform-regenerator-7.0.0.tgz#5b41686b4ed40bef874d7ed6a84bdd849c13e0c1"
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+  dependencies:
+    regenerator-transform "^0.13.3"
+
+"@babel/plugin-transform-shorthand-properties@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-shorthand-properties/-/plugin-transform-shorthand-properties-7.0.0.tgz#85f8af592dcc07647541a0350e8c95c7bf419d15"
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+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-spread@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-spread/-/plugin-transform-spread-7.0.0.tgz#93583ce48dd8c85e53f3a46056c856e4af30b49b"
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+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-sticky-regex@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-sticky-regex/-/plugin-transform-sticky-regex-7.0.0.tgz#30a9d64ac2ab46eec087b8530535becd90e73366"
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+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+    "@babel/helper-regex" "^7.0.0"
+
+"@babel/plugin-transform-template-literals@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-template-literals/-/plugin-transform-template-literals-7.0.0.tgz#084f1952efe5b153ddae69eb8945f882c7a97c65"
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+  dependencies:
+    "@babel/helper-annotate-as-pure" "^7.0.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-typeof-symbol@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-typeof-symbol/-/plugin-transform-typeof-symbol-7.0.0.tgz#4dcf1e52e943e5267b7313bff347fdbe0f81cec9"
+  integrity sha512-1r1X5DO78WnaAIvs5uC48t41LLckxsYklJrZjNKcevyz83sF2l4RHbw29qrCPr/6ksFsdfRpT/ZgxNWHXRnffg==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+
+"@babel/plugin-transform-unicode-regex@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-unicode-regex/-/plugin-transform-unicode-regex-7.0.0.tgz#c6780e5b1863a76fe792d90eded9fcd5b51d68fc"
+  integrity sha512-uJBrJhBOEa3D033P95nPHu3nbFwFE9ZgXsfEitzoIXIwqAZWk7uXcg06yFKXz9FSxBH5ucgU/cYdX0IV8ldHKw==
+  dependencies:
+    "@babel/helper-plugin-utils" "^7.0.0"
+    "@babel/helper-regex" "^7.0.0"
+    regexpu-core "^4.1.3"
+
+"@babel/preset-env@^7.0.0":
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.1.0.tgz#e67ea5b0441cfeab1d6f41e9b5c79798800e8d11"
+  integrity sha512-ZLVSynfAoDHB/34A17/JCZbyrzbQj59QC1Anyueb4Bwjh373nVPq5/HMph0z+tCmcDjXDe+DlKQq9ywQuvWrQg==
+  dependencies:
+    "@babel/helper-module-imports" "^7.0.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+    "@babel/plugin-proposal-async-generator-functions" "^7.1.0"
+    "@babel/plugin-proposal-json-strings" "^7.0.0"
+    "@babel/plugin-proposal-object-rest-spread" "^7.0.0"
+    "@babel/plugin-proposal-optional-catch-binding" "^7.0.0"
+    "@babel/plugin-proposal-unicode-property-regex" "^7.0.0"
+    "@babel/plugin-syntax-async-generators" "^7.0.0"
+    "@babel/plugin-syntax-object-rest-spread" "^7.0.0"
+    "@babel/plugin-syntax-optional-catch-binding" "^7.0.0"
+    "@babel/plugin-transform-arrow-functions" "^7.0.0"
+    "@babel/plugin-transform-async-to-generator" "^7.1.0"
+    "@babel/plugin-transform-block-scoped-functions" "^7.0.0"
+    "@babel/plugin-transform-block-scoping" "^7.0.0"
+    "@babel/plugin-transform-classes" "^7.1.0"
+    "@babel/plugin-transform-computed-properties" "^7.0.0"
+    "@babel/plugin-transform-destructuring" "^7.0.0"
+    "@babel/plugin-transform-dotall-regex" "^7.0.0"
+    "@babel/plugin-transform-duplicate-keys" "^7.0.0"
+    "@babel/plugin-transform-exponentiation-operator" "^7.1.0"
+    "@babel/plugin-transform-for-of" "^7.0.0"
+    "@babel/plugin-transform-function-name" "^7.1.0"
+    "@babel/plugin-transform-literals" "^7.0.0"
+    "@babel/plugin-transform-modules-amd" "^7.1.0"
+    "@babel/plugin-transform-modules-commonjs" "^7.1.0"
+    "@babel/plugin-transform-modules-systemjs" "^7.0.0"
+    "@babel/plugin-transform-modules-umd" "^7.1.0"
+    "@babel/plugin-transform-new-target" "^7.0.0"
+    "@babel/plugin-transform-object-super" "^7.1.0"
+    "@babel/plugin-transform-parameters" "^7.1.0"
+    "@babel/plugin-transform-regenerator" "^7.0.0"
+    "@babel/plugin-transform-shorthand-properties" "^7.0.0"
+    "@babel/plugin-transform-spread" "^7.0.0"
+    "@babel/plugin-transform-sticky-regex" "^7.0.0"
+    "@babel/plugin-transform-template-literals" "^7.0.0"
+    "@babel/plugin-transform-typeof-symbol" "^7.0.0"
+    "@babel/plugin-transform-unicode-regex" "^7.0.0"
+    browserslist "^4.1.0"
+    invariant "^2.2.2"
+    js-levenshtein "^1.1.3"
+    semver "^5.3.0"
+
+"@babel/register@^7.0.0":
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/@babel/register/-/register-7.0.0.tgz#fa634bae1bfa429f60615b754fc1f1d745edd827"
+  integrity sha512-f/+CRmaCe7rVEvcvPvxeA8j5aJhHC3aJie7YuqcMDhUOuyWLA7J/aNrTaHIzoWPEhpHA54mec4Mm8fv8KBlv3g==
+  dependencies:
+    core-js "^2.5.7"
+    find-cache-dir "^1.0.0"
+    home-or-tmp "^3.0.0"
+    lodash "^4.17.10"
+    mkdirp "^0.5.1"
+    pirates "^4.0.0"
+    source-map-support "^0.5.9"
+
 "@babel/template@7.0.0-beta.40":
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.0.0-beta.40.tgz#034988c6424eb5c3268fe6a608626de1f4410fc8"
+  integrity sha512-RlQiVB7eL7fxsKN6JvnCCwEwEL28CBYalXSgWWULuFlEHjtMoXBqQanSie3bNyhrANJx67sb+Sd/vuGivoMwLQ==
   dependencies:
     "@babel/code-frame" "7.0.0-beta.40"
     "@babel/types" "7.0.0-beta.40"
     babylon "7.0.0-beta.40"
     lodash "^4.2.0"
 
+"@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.1.2":
+  version "7.1.2"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.1.2.tgz#090484a574fef5a2d2d7726a674eceda5c5b5644"
+  integrity sha512-SY1MmplssORfFiLDcOETrW7fCLl+PavlwMh92rrGcikQaRq4iWPVH0MpwPpY3etVMx6RnDjXtr6VZYr/IbP/Ag==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/parser" "^7.1.2"
+    "@babel/types" "^7.1.2"
+
+"@babel/traverse@^7.0.0", "@babel/traverse@^7.1.0":
+  version "7.1.4"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.1.4.tgz#f4f83b93d649b4b2c91121a9087fa2fa949ec2b4"
+  integrity sha512-my9mdrAIGdDiSVBuMjpn/oXYpva0/EZwWL3sm3Wcy/AVWO2eXnsoZruOT9jOGNRXU8KbCIu5zsKnXcAJ6PcV6Q==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    "@babel/generator" "^7.1.3"
+    "@babel/helper-function-name" "^7.1.0"
+    "@babel/helper-split-export-declaration" "^7.0.0"
+    "@babel/parser" "^7.1.3"
+    "@babel/types" "^7.1.3"
+    debug "^3.1.0"
+    globals "^11.1.0"
+    lodash "^4.17.10"
+
 "@babel/traverse@^7.0.0-beta.40":
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.0.0-beta.40.tgz#d140e449b2e093ef9fe1a2eecc28421ffb4e521e"
+  integrity sha512-h96SQorjvdSuxQ6hHFIuAa3oxnad1TA5bU1Zz88+XqzwmM5QM0/k2D+heXGGy/76gT5ajl7xYLKGiPA/KTyVhQ==
   dependencies:
     "@babel/code-frame" "7.0.0-beta.40"
     "@babel/generator" "7.0.0-beta.40"
@@ -66,32 +706,47 @@
 "@babel/types@7.0.0-beta.40", "@babel/types@^7.0.0-beta.40":
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.0.0-beta.40.tgz#25c3d7aae14126abe05fcb098c65a66b6d6b8c14"
+  integrity sha512-uXCGCzTgMZxcSUzutCPtZmXbVC+cvENgS2e0tRuhn+Y1hZnMb8IHP0Trq7Q2MB/eFmG5pKrAeTIUfQIe5kA4Tg==
   dependencies:
     esutils "^2.0.2"
     lodash "^4.2.0"
     to-fast-properties "^2.0.0"
 
+"@babel/types@^7.0.0", "@babel/types@^7.1.2", "@babel/types@^7.1.3":
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.1.3.tgz#3a767004567060c2f40fca49a304712c525ee37d"
+  integrity sha512-RpPOVfK+yatXyn8n4PB1NW6k9qjinrXrRR8ugBN8fD6hCy5RXI6PSbVqpOJBO9oSaY7Nom4ohj35feb0UR9hSA==
+  dependencies:
+    esutils "^2.0.2"
+    lodash "^4.17.10"
+    to-fast-properties "^2.0.0"
+
 "@types/node@*":
   version "9.4.6"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-9.4.6.tgz#d8176d864ee48753d053783e4e463aec86b8d82e"
+  integrity sha512-CTUtLb6WqCCgp6P59QintjHWqzf4VL1uPA27bipLAPxFqrtK1gEYllePzTICGqQ8rYsCbpnsNypXjjDzGAAjEQ==
 
 "@types/node@^8.0.33":
   version "8.9.4"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-8.9.4.tgz#dfd327582a06c114eb6e0441fa3d6fab35edad48"
+  integrity sha512-dSvD36qnQs78G1BPsrZFdPpvLgMW/dnvr5+nTW2csMs5TiP9MOXrjUbnMZOEwnIuBklXtn7b6TPA2Cuq07bDHA==
 
 "@types/tapable@*":
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-0.2.4.tgz#8181a228da46185439300e600c5ae3b3b3982585"
+  integrity sha512-pclMAvhPnXJcJu1ZZ8bQthuUcdDWzDuxDdbSf6l1U6s4fP6EBiZpPsOZYqFOrbqDV97sXGFSsb6AUpiLfv4xIA==
 
 "@types/uglify-js@*":
   version "2.6.30"
   resolved "https://registry.yarnpkg.com/@types/uglify-js/-/uglify-js-2.6.30.tgz#257d2b6dd86673d60da476680fba90f2e30c6eef"
+  integrity sha512-NjiBNGFl58vHJeijl63w1fWRIjLnrfOvimsXF5b3lTzEzkTV1BnVsbqQeLejg54upsHPWIF63aiub5TEwH619A==
   dependencies:
     source-map "^0.6.1"
 
 "@types/webpack@^3.0.13":
   version "3.8.9"
   resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-3.8.9.tgz#c420c9428ba18e20e4fe8eff7bee4d04bace9182"
+  integrity sha512-KfkmKP3bWQLW/nsB6yB/YVNGxAk3TcthPZf5nItCCw3iPjcrIxjWDPgbVg3ggccAyc8I2DhlgU3XYcqTa8jyjA==
   dependencies:
     "@types/node" "*"
     "@types/tapable" "*"
@@ -101,6 +756,7 @@
 JSONStream@^1.0.3, JSONStream@^1.0.4:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.2.tgz#c102371b6ec3a7cf3b847ca00c20bb0fce4c6dea"
+  integrity sha1-wQI3G27Dp887hHygDCC7D85Mbeo=
   dependencies:
     jsonparse "^1.2.0"
     through ">=2.2.7 <3"
@@ -108,18 +764,22 @@ JSONStream@^1.0.3, JSONStream@^1.0.4:
 abab@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/abab/-/abab-1.0.4.tgz#5faad9c2c07f60dd76770f71cf025b62a63cfd4e"
+  integrity sha1-X6rZwsB/YN12dw9xzwJbYqY8/U4=
 
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
+  integrity sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==
 
 abbrev@1.0.x:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135"
+  integrity sha1-kbR5JYinc4wl813W9jdSovh3YTU=
 
 accepts@~1.3.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
+  integrity sha1-63d99gEXI6OxTopywIBcjoZ0a9I=
   dependencies:
     mime-types "~2.1.18"
     negotiator "0.6.1"
@@ -127,36 +787,42 @@ accepts@~1.3.4:
 acorn-dynamic-import@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz#c752bd210bef679501b6c6cb7fc84f8f47158cc4"
+  integrity sha1-x1K9IQvvZ5UBtsbLf8hPj0cVjMQ=
   dependencies:
     acorn "^4.0.3"
 
 acorn-dynamic-import@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
+  integrity sha512-zVWV8Z8lislJoOKKqdNMOB+s6+XV5WERty8MnKBeFgwA+19XJjJHs2RP5dzM57FftIs+jQnRToLiWazKr6sSWg==
   dependencies:
     acorn "^5.0.0"
 
 acorn-globals@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.1.0.tgz#ab716025dbe17c54d3ef81d32ece2b2d99fe2538"
+  integrity sha512-KjZwU26uG3u6eZcfGbTULzFcsoz6pegNKtHPksZPOUsiKo5bUmiBPa38FuHZ/Eun+XYh/JCCkS9AS3Lu4McQOQ==
   dependencies:
     acorn "^5.0.0"
 
 acorn-jsx@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
+  integrity sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=
   dependencies:
     acorn "^3.0.4"
 
 acorn-jsx@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-4.1.1.tgz#e8e41e48ea2fe0c896740610ab6a4ffd8add225e"
+  integrity sha512-JY+iV6r+cO21KtntVvFkD+iqjtdpRUpGqKWgfkCdZq1R+kbreEl8EcdcJR4SmiIgsIQT33s6QzheQ9a275Q8xw==
   dependencies:
     acorn "^5.0.3"
 
 acorn-node@^1.2.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/acorn-node/-/acorn-node-1.3.0.tgz#5f86d73346743810ef1269b901dbcbded020861b"
+  integrity sha512-efP54n3d1aLfjL2UMdaXa6DsswwzJeI5rqhbFvXMrKiJ6eJFpf+7R0zN7t8IC+XKn2YOAFAv6xbBNgHUkoHWLw==
   dependencies:
     acorn "^5.4.1"
     xtend "^4.0.1"
@@ -164,30 +830,37 @@ acorn-node@^1.2.0:
 acorn@^3.0.4:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+  integrity sha1-ReN/s56No/JbruP/U2niu18iAXo=
 
 acorn@^4.0.3:
   version "4.0.13"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
+  integrity sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=
 
 acorn@^5.0.0, acorn@^5.0.3, acorn@^5.2.1, acorn@^5.3.0, acorn@^5.4.1, acorn@^5.5.0:
   version "5.5.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.1.tgz#84e05a9ea0acbe131227da50301e62464dc9c1d8"
+  integrity sha512-D/KGiCpM/VOtTMDS+wfjywEth926WUrArrzYov4N4SI7t+3y8747dPpCmmAvrm/Z3ygqMHnyPxvYYO0yTdn/nQ==
 
 addressparser@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/addressparser/-/addressparser-1.0.1.tgz#47afbe1a2a9262191db6838e4fd1d39b40821746"
+  integrity sha1-R6++GiqSYhkdtoOOT9HTm0CCF0Y=
 
 adm-zip@~0.4.3:
   version "0.4.7"
   resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.7.tgz#8606c2cbf1c426ce8c8ec00174447fd49b6eafc1"
+  integrity sha1-hgbCy/HEJs6MjsABdER/1Jtur8E=
 
 after@0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
+  integrity sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8=
 
 agent-base@2:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-2.1.1.tgz#d6de10d5af6132d5bd692427d46fc538539094c7"
+  integrity sha1-1t4Q1a9hMtW9aSQn1G/FOFOQlMc=
   dependencies:
     extend "~3.0.0"
     semver "~5.0.1"
@@ -195,14 +868,17 @@ agent-base@2:
 ajv-keywords@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
+  integrity sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=
 
 ajv-keywords@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
+  integrity sha1-rCsnk5xUPpXSwG5/f1wnvkqlQ74=
 
 ajv@^4.9.1:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
+  integrity sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=
   dependencies:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
@@ -210,6 +886,7 @@ ajv@^4.9.1:
 ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
+  integrity sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=
   dependencies:
     co "^4.6.0"
     fast-deep-equal "^1.0.0"
@@ -219,6 +896,7 @@ ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
 ajv@^6.1.0:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.2.1.tgz#28a6abc493a2abe0fb4c8507acaedb43fa550671"
+  integrity sha1-KKarxJOiq+D7TIUHrK7bQ/pVBnE=
   dependencies:
     fast-deep-equal "^1.0.0"
     fast-json-stable-stringify "^2.0.0"
@@ -227,6 +905,7 @@ ajv@^6.1.0:
 align-text@^0.1.1, align-text@^0.1.3:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
+  integrity sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=
   dependencies:
     kind-of "^3.0.2"
     longest "^1.0.1"
@@ -235,10 +914,12 @@ align-text@^0.1.1, align-text@^0.1.3:
 amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
+  integrity sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=
 
 amqplib@^0.5.2:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/amqplib/-/amqplib-0.5.2.tgz#d2d7313c7ffaa4d10bcf1e6252de4591b6cc7b63"
+  integrity sha512-l9mCs6LbydtHqRniRwYkKdqxVa6XMz3Vw1fh+2gJaaVgTM6Jk3o8RccAKWKtlhT1US5sWrFh+KKxsVUALURSIA==
   dependencies:
     bitsyntax "~0.0.4"
     bluebird "^3.4.6"
@@ -249,36 +930,44 @@ amqplib@^0.5.2:
 ansi-escapes@^1.0.0, ansi-escapes@^1.1.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
+  integrity sha1-06ioOzGapneTZisT52HHkRQiMG4=
 
 ansi-escapes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.0.0.tgz#ec3e8b4e9f8064fc02c3ac9b65f1c275bda8ef92"
+  integrity sha512-O/klc27mWNUigtv0F8NJWbLF00OcegQalkqKURWdosW08YZKi4m6CnSUSvIZG1otNJbTWhN01Hhz389DW7mvDQ==
 
 ansi-regex@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
+  integrity sha1-w7M6te42DYbg5ijwRorn7yfWVN8=
 
 ansi-regex@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
+  integrity sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=
 
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
+  integrity sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=
 
 ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
   dependencies:
     color-convert "^1.9.0"
 
 any-observable@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.2.0.tgz#c67870058003579009083f54ac0abafb5c33d242"
+  integrity sha1-xnhwBYADV5AJCD9UrAq6+1wz0kI=
 
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
+  integrity sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==
   dependencies:
     micromatch "^2.1.5"
     normalize-path "^2.0.0"
@@ -286,6 +975,7 @@ anymatch@^1.3.0:
 anymatch@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
+  integrity sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==
   dependencies:
     micromatch "^3.1.4"
     normalize-path "^2.1.1"
@@ -293,14 +983,17 @@ anymatch@^2.0.0:
 app-root-path@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-2.0.1.tgz#cd62dcf8e4fd5a417efc664d2e5b10653c651b46"
+  integrity sha1-zWLc+OT9WkF+/GZNLlsQZTxlG0Y=
 
 aproba@^1.0.3:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
+  integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
 
 archiver-utils@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/archiver-utils/-/archiver-utils-1.3.0.tgz#e50b4c09c70bf3d680e32ff1b7994e9f9d895174"
+  integrity sha1-5QtMCccL89aA4y/xt5lOn52JUXQ=
   dependencies:
     glob "^7.0.0"
     graceful-fs "^4.1.0"
@@ -312,6 +1005,7 @@ archiver-utils@^1.3.0:
 archiver@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/archiver/-/archiver-1.3.0.tgz#4f2194d6d8f99df3f531e6881f14f15d55faaf22"
+  integrity sha1-TyGU1tj5nfP1MeaIHxTxXVX6ryI=
   dependencies:
     archiver-utils "^1.3.0"
     async "^2.0.0"
@@ -326,6 +1020,7 @@ archiver@1.3.0:
 are-we-there-yet@~1.1.2:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz#bb5dca382bb94f05e15194373d16fd3ba1ca110d"
+  integrity sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=
   dependencies:
     delegates "^1.0.0"
     readable-stream "^2.0.6"
@@ -333,88 +1028,108 @@ are-we-there-yet@~1.1.2:
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
+  integrity sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==
   dependencies:
     sprintf-js "~1.0.2"
 
 argv@^0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/argv/-/argv-0.0.2.tgz#ecbd16f8949b157183711b1bda334f37840185ab"
+  integrity sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas=
 
 arr-diff@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
+  integrity sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=
   dependencies:
     arr-flatten "^1.0.1"
 
 arr-diff@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
+  integrity sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=
 
 arr-flatten@^1.0.1, arr-flatten@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.1.0.tgz#36048bbff4e7b47e136644316c99669ea5ae91f1"
+  integrity sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==
 
 arr-union@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
+  integrity sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=
 
 array-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-equal/-/array-equal-1.0.0.tgz#8c2a5ef2472fd9ea742b04c77a75093ba2757c93"
+  integrity sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM=
 
 array-filter@~0.0.0:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/array-filter/-/array-filter-0.0.1.tgz#7da8cf2e26628ed732803581fd21f67cacd2eeec"
+  integrity sha1-fajPLiZijtcygDWB/SH2fKzS7uw=
 
 array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
+  integrity sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=
 
 array-ify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-ify/-/array-ify-1.0.0.tgz#9e528762b4a9066ad163a6962a364418e9626ece"
+  integrity sha1-nlKHYrSpBmrRY6aWKjZEGOlibs4=
 
 array-map@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/array-map/-/array-map-0.0.0.tgz#88a2bab73d1cf7bcd5c1b118a003f66f665fa662"
+  integrity sha1-iKK6tz0c97zVwbEYoAP2b2ZfpmI=
 
 array-reduce@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/array-reduce/-/array-reduce-0.0.0.tgz#173899d3ffd1c7d9383e4479525dbe278cab5f2b"
+  integrity sha1-FziZ0//Rx9k4PkR5Ul2+J4yrXys=
 
 array-slice@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/array-slice/-/array-slice-0.2.3.tgz#dd3cfb80ed7973a75117cdac69b0b99ec86186f5"
+  integrity sha1-3Tz7gO15c6dRF82sabC5nshhhvU=
 
 array-union@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-union/-/array-union-1.0.2.tgz#9a34410e4f4e3da23dea375be5be70f24778ec39"
+  integrity sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=
   dependencies:
     array-uniq "^1.0.1"
 
 array-uniq@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
+  integrity sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=
 
 array-unique@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.2.1.tgz#a1d97ccafcbc2625cc70fadceb36a50c58b01a53"
+  integrity sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=
 
 array-unique@^0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
+  integrity sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=
 
 arraybuffer.slice@~0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
+  integrity sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog==
 
 arrify@^1.0.0, arrify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
+  integrity sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=
 
 asn1.js@^4.0.0:
   version "4.10.1"
   resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-4.10.1.tgz#b9c2bf5805f1e64aadeed6df3a2bfafb5a73f5a0"
+  integrity sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==
   dependencies:
     bn.js "^4.0.0"
     inherits "^2.0.1"
@@ -423,544 +1138,252 @@ asn1.js@^4.0.0:
 asn1@~0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
+  integrity sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=
 
 assert-plus@1.0.0, assert-plus@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
+  integrity sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=
 
 assert-plus@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
+  integrity sha1-104bh+ev/A24qttwIfP+SBAasjQ=
 
 assert@^1.1.1, assert@^1.4.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/assert/-/assert-1.4.1.tgz#99912d591836b5a6f5b345c0f07eefc08fc65d91"
+  integrity sha1-mZEtWRg2tab1s0XA8H7vwI/GXZE=
   dependencies:
     util "0.10.3"
 
 assertion-error@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.0.0.tgz#c7f85438fdd466bc7ca16ab90c81513797a5d23b"
+  integrity sha1-x/hUOP3UZrx8oWq5DIFRN5el0js=
 
 assign-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
+  integrity sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=
 
 ast-types@0.x.x:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.2.tgz#cc4e1d15a36b39979a1986fe1e91321cbfae7783"
+  integrity sha512-aL+pcOQ+6dpWd0xrUe+Obo2CgdkFvsntkXEmzZKqEN4cR0PStF+1MBuc4V+YZsv4Q36luvyjG7F4lc+wH2bmag==
 
 astw@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/astw/-/astw-2.2.0.tgz#7bd41784d32493987aeb239b6b4e1c57a873b917"
+  integrity sha1-e9QXhNMkk5h66yOba04cV6hzuRc=
   dependencies:
     acorn "^4.0.3"
 
 async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
+  integrity sha1-GdOGodntxufByF04iu28xW0zYC0=
 
 async-limiter@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
+  integrity sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==
 
 async@1.x, async@^1.4.0, async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
 async@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.0.1.tgz#b709cc0280a9c36f09f4536be823c838a9049e25"
+  integrity sha1-twnMAoCpw28J9FNr6CPIOKkEniU=
   dependencies:
     lodash "^4.8.0"
 
 async@^2.0.0, async@^2.1.2:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.0.tgz#61a29abb6fcc026fea77e56d1c6ec53a795951f4"
+  integrity sha512-xAfGg1/NTLBBKlHFmnd7PlmUW9KhVQIUuSrYem9xzFUZy13ScvtyGGejaae9iAVRiRq9+Cx7DPFaAAhCpyxyPw==
   dependencies:
     lodash "^4.14.0"
 
 async@~2.1.2:
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/async/-/async-2.1.5.tgz#e587c68580994ac67fc56ff86d3ac56bdbe810bc"
+  integrity sha1-5YfGhYCZSsZ/xW/4bTrFa9voELw=
   dependencies:
     lodash "^4.14.0"
 
 asynckit@^0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
-
-atob@^2.0.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/atob/-/atob-2.0.3.tgz#19c7a760473774468f20b2d2d03372ad7d4cbf5d"
-
-atob@~1.1.0:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/atob/-/atob-1.1.3.tgz#95f13629b12c3a51a5d215abdce2aa9f32f80773"
-
-aws-sign2@~0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
-
-aws-sign2@~0.7.0:
-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
-
-aws4@^1.2.1, aws4@^1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
-
-aws4@^1.8.0:
-  version "1.8.0"
-  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
-
-axios@^0.15.3:
-  version "0.15.3"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.15.3.tgz#2c9d638b2e191a08ea1d6cc988eadd6ba5bdc053"
-  dependencies:
-    follow-redirects "1.0.0"
-
-babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
-  dependencies:
-    chalk "^1.1.3"
-    esutils "^2.0.2"
-    js-tokens "^3.0.2"
-
-babel-core@^6.25.0, babel-core@^6.26.0:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.0.tgz#af32f78b31a6fcef119c87b0fd8d9753f03a0bb8"
-  dependencies:
-    babel-code-frame "^6.26.0"
-    babel-generator "^6.26.0"
-    babel-helpers "^6.24.1"
-    babel-messages "^6.23.0"
-    babel-register "^6.26.0"
-    babel-runtime "^6.26.0"
-    babel-template "^6.26.0"
-    babel-traverse "^6.26.0"
-    babel-types "^6.26.0"
-    babylon "^6.18.0"
-    convert-source-map "^1.5.0"
-    debug "^2.6.8"
-    json5 "^0.5.1"
-    lodash "^4.17.4"
-    minimatch "^3.0.4"
-    path-is-absolute "^1.0.1"
-    private "^0.1.7"
-    slash "^1.0.0"
-    source-map "^0.5.6"
-
-babel-eslint@^8.0.3:
-  version "8.2.2"
-  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.2.2.tgz#1102273354c6f0b29b4ea28a65f97d122296b68b"
-  dependencies:
-    "@babel/code-frame" "^7.0.0-beta.40"
-    "@babel/traverse" "^7.0.0-beta.40"
-    "@babel/types" "^7.0.0-beta.40"
-    babylon "^7.0.0-beta.40"
-    eslint-scope "~3.7.1"
-    eslint-visitor-keys "^1.0.0"
-
-babel-generator@^6.18.0, babel-generator@^6.26.0:
-  version "6.26.1"
-  resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.1.tgz#1844408d3b8f0d35a404ea7ac180f087a601bd90"
-  dependencies:
-    babel-messages "^6.23.0"
-    babel-runtime "^6.26.0"
-    babel-types "^6.26.0"
-    detect-indent "^4.0.0"
-    jsesc "^1.3.0"
-    lodash "^4.17.4"
-    source-map "^0.5.7"
-    trim-right "^1.0.1"
-
-babel-helper-call-delegate@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-call-delegate/-/babel-helper-call-delegate-6.24.1.tgz#ece6aacddc76e41c3461f88bfc575bd0daa2df8d"
-  dependencies:
-    babel-helper-hoist-variables "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
-babel-helper-define-map@^6.24.1:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-helper-define-map/-/babel-helper-define-map-6.26.0.tgz#a5f56dab41a25f97ecb498c7ebaca9819f95be5f"
-  dependencies:
-    babel-helper-function-name "^6.24.1"
-    babel-runtime "^6.26.0"
-    babel-types "^6.26.0"
-    lodash "^4.17.4"
-
-babel-helper-function-name@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
-  dependencies:
-    babel-helper-get-function-arity "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
-babel-helper-get-function-arity@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-get-function-arity/-/babel-helper-get-function-arity-6.24.1.tgz#8f7782aa93407c41d3aa50908f89b031b1b6853d"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
-
-babel-helper-hoist-variables@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-hoist-variables/-/babel-helper-hoist-variables-6.24.1.tgz#1ecb27689c9d25513eadbc9914a73f5408be7a76"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
-
-babel-helper-optimise-call-expression@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-optimise-call-expression/-/babel-helper-optimise-call-expression-6.24.1.tgz#f7a13427ba9f73f8f4fa993c54a97882d1244257"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
-
-babel-helper-regex@^6.24.1:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-helper-regex/-/babel-helper-regex-6.26.0.tgz#325c59f902f82f24b74faceed0363954f6495e72"
-  dependencies:
-    babel-runtime "^6.26.0"
-    babel-types "^6.26.0"
-    lodash "^4.17.4"
-
-babel-helper-replace-supers@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-replace-supers/-/babel-helper-replace-supers-6.24.1.tgz#bf6dbfe43938d17369a213ca8a8bf74b6a90ab1a"
-  dependencies:
-    babel-helper-optimise-call-expression "^6.24.1"
-    babel-messages "^6.23.0"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
-babel-helper-vue-jsx-merge-props@^2.0.2:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/babel-helper-vue-jsx-merge-props/-/babel-helper-vue-jsx-merge-props-2.0.3.tgz#22aebd3b33902328e513293a8e4992b384f9f1b6"
-
-babel-helpers@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helpers/-/babel-helpers-6.24.1.tgz#3471de9caec388e5c850e597e58a26ddf37602b2"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-
-babel-loader@^7.0.0:
-  version "7.1.4"
-  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-7.1.4.tgz#e3463938bd4e6d55d1c174c5485d406a188ed015"
-  dependencies:
-    find-cache-dir "^1.0.0"
-    loader-utils "^1.0.2"
-    mkdirp "^0.5.1"
-
-babel-messages@^6.23.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
-  dependencies:
-    babel-runtime "^6.22.0"
-
-babel-plugin-check-es2015-constants@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-check-es2015-constants/-/babel-plugin-check-es2015-constants-6.22.0.tgz#35157b101426fd2ffd3da3f75c7d1e91835bbf8a"
-  dependencies:
-    babel-runtime "^6.22.0"
-
-babel-plugin-istanbul@^4.1.4:
-  version "4.1.5"
-  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.5.tgz#6760cdd977f411d3e175bb064f2bc327d99b2b6e"
-  dependencies:
-    find-up "^2.1.0"
-    istanbul-lib-instrument "^1.7.5"
-    test-exclude "^4.1.1"
-
-babel-plugin-syntax-class-properties@^6.8.0:
-  version "6.13.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-class-properties/-/babel-plugin-syntax-class-properties-6.13.0.tgz#d7eb23b79a317f8543962c505b827c7d6cac27de"
-
-babel-plugin-syntax-dynamic-import@^6.18.0:
-  version "6.18.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-dynamic-import/-/babel-plugin-syntax-dynamic-import-6.18.0.tgz#8d6a26229c83745a9982a441051572caa179b1da"
-
-babel-plugin-syntax-flow@^6.18.0, babel-plugin-syntax-flow@^6.8.0:
-  version "6.18.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-flow/-/babel-plugin-syntax-flow-6.18.0.tgz#4c3ab20a2af26aa20cd25995c398c4eb70310c8d"
-
-babel-plugin-syntax-jsx@^6.18.0:
-  version "6.18.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
-
-babel-plugin-transform-class-properties@^6.8.0:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-class-properties/-/babel-plugin-transform-class-properties-6.24.1.tgz#6a79763ea61d33d36f37b611aa9def81a81b46ac"
-  dependencies:
-    babel-helper-function-name "^6.24.1"
-    babel-plugin-syntax-class-properties "^6.8.0"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-
-babel-plugin-transform-es2015-arrow-functions@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz#452692cb711d5f79dc7f85e440ce41b9f244d221"
-  dependencies:
-    babel-runtime "^6.22.0"
-
-babel-plugin-transform-es2015-block-scoped-functions@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoped-functions/-/babel-plugin-transform-es2015-block-scoped-functions-6.22.0.tgz#bbc51b49f964d70cb8d8e0b94e820246ce3a6141"
-  dependencies:
-    babel-runtime "^6.22.0"
-
-babel-plugin-transform-es2015-block-scoping@^6.24.1:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz#d70f5299c1308d05c12f463813b0a09e73b1895f"
-  dependencies:
-    babel-runtime "^6.26.0"
-    babel-template "^6.26.0"
-    babel-traverse "^6.26.0"
-    babel-types "^6.26.0"
-    lodash "^4.17.4"
-
-babel-plugin-transform-es2015-classes@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-classes/-/babel-plugin-transform-es2015-classes-6.24.1.tgz#5a4c58a50c9c9461e564b4b2a3bfabc97a2584db"
-  dependencies:
-    babel-helper-define-map "^6.24.1"
-    babel-helper-function-name "^6.24.1"
-    babel-helper-optimise-call-expression "^6.24.1"
-    babel-helper-replace-supers "^6.24.1"
-    babel-messages "^6.23.0"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
-babel-plugin-transform-es2015-computed-properties@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-computed-properties/-/babel-plugin-transform-es2015-computed-properties-6.24.1.tgz#6fe2a8d16895d5634f4cd999b6d3480a308159b3"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-
-babel-plugin-transform-es2015-destructuring@^6.22.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz#997bb1f1ab967f682d2b0876fe358d60e765c56d"
-  dependencies:
-    babel-runtime "^6.22.0"
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
+  integrity sha1-x57Zf380y48robyXkLzDZkdLS3k=
 
-babel-plugin-transform-es2015-duplicate-keys@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-duplicate-keys/-/babel-plugin-transform-es2015-duplicate-keys-6.24.1.tgz#73eb3d310ca969e3ef9ec91c53741a6f1576423e"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
+atob@^2.0.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-2.0.3.tgz#19c7a760473774468f20b2d2d03372ad7d4cbf5d"
+  integrity sha1-GcenYEc3dEaPILLS0DNyrX1Mv10=
 
-babel-plugin-transform-es2015-for-of@^6.22.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-for-of/-/babel-plugin-transform-es2015-for-of-6.23.0.tgz#f47c95b2b613df1d3ecc2fdb7573623c75248691"
-  dependencies:
-    babel-runtime "^6.22.0"
+atob@~1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-1.1.3.tgz#95f13629b12c3a51a5d215abdce2aa9f32f80773"
+  integrity sha1-lfE2KbEsOlGl0hWr3OKqnzL4B3M=
 
-babel-plugin-transform-es2015-function-name@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-function-name/-/babel-plugin-transform-es2015-function-name-6.24.1.tgz#834c89853bc36b1af0f3a4c5dbaa94fd8eacaa8b"
-  dependencies:
-    babel-helper-function-name "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
+aws-sign2@~0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
+  integrity sha1-FDQt0428yU0OW4fXY81jYSwOeU8=
 
-babel-plugin-transform-es2015-literals@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-literals/-/babel-plugin-transform-es2015-literals-6.22.0.tgz#4f54a02d6cd66cf915280019a31d31925377ca2e"
-  dependencies:
-    babel-runtime "^6.22.0"
+aws-sign2@~0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
+  integrity sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=
 
-babel-plugin-transform-es2015-modules-amd@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-amd/-/babel-plugin-transform-es2015-modules-amd-6.24.1.tgz#3b3e54017239842d6d19c3011c4bd2f00a00d154"
-  dependencies:
-    babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
+aws4@^1.2.1, aws4@^1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
+  integrity sha1-g+9cqGCysy5KDe7e6MdxudtXRx4=
 
-babel-plugin-transform-es2015-modules-commonjs@^6.24.1:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.0.tgz#0d8394029b7dc6abe1a97ef181e00758dd2e5d8a"
-  dependencies:
-    babel-plugin-transform-strict-mode "^6.24.1"
-    babel-runtime "^6.26.0"
-    babel-template "^6.26.0"
-    babel-types "^6.26.0"
+aws4@^1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
+  integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
-babel-plugin-transform-es2015-modules-systemjs@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz#ff89a142b9119a906195f5f106ecf305d9407d23"
+axios@^0.15.3:
+  version "0.15.3"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.15.3.tgz#2c9d638b2e191a08ea1d6cc988eadd6ba5bdc053"
+  integrity sha1-LJ1jiy4ZGgjqHWzJiOrda6W9wFM=
   dependencies:
-    babel-helper-hoist-variables "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
+    follow-redirects "1.0.0"
 
-babel-plugin-transform-es2015-modules-umd@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-umd/-/babel-plugin-transform-es2015-modules-umd-6.24.1.tgz#ac997e6285cd18ed6176adb607d602344ad38468"
+babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
+  integrity sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=
   dependencies:
-    babel-plugin-transform-es2015-modules-amd "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
+    chalk "^1.1.3"
+    esutils "^2.0.2"
+    js-tokens "^3.0.2"
 
-babel-plugin-transform-es2015-object-super@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-object-super/-/babel-plugin-transform-es2015-object-super-6.24.1.tgz#24cef69ae21cb83a7f8603dad021f572eb278f8d"
+babel-eslint@^8.0.3:
+  version "8.2.2"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.2.2.tgz#1102273354c6f0b29b4ea28a65f97d122296b68b"
+  integrity sha512-Qt2lz2egBxNYWqN9JIO2z4NOOf8i4b5JS6CFoYrOZZTDssueiV1jH/jsefyg+86SeNY3rB361/mi3kE1WK2WYQ==
   dependencies:
-    babel-helper-replace-supers "^6.24.1"
-    babel-runtime "^6.22.0"
+    "@babel/code-frame" "^7.0.0-beta.40"
+    "@babel/traverse" "^7.0.0-beta.40"
+    "@babel/types" "^7.0.0-beta.40"
+    babylon "^7.0.0-beta.40"
+    eslint-scope "~3.7.1"
+    eslint-visitor-keys "^1.0.0"
 
-babel-plugin-transform-es2015-parameters@^6.24.1:
+babel-helper-function-name@^6.24.1:
   version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-parameters/-/babel-plugin-transform-es2015-parameters-6.24.1.tgz#57ac351ab49caf14a97cd13b09f66fdf0a625f2b"
+  resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
+  integrity sha1-00dbjAPtmCQqJbSDUasYOZ01gKk=
   dependencies:
-    babel-helper-call-delegate "^6.24.1"
     babel-helper-get-function-arity "^6.24.1"
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-shorthand-properties@^6.24.1:
+babel-helper-get-function-arity@^6.24.1:
   version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-shorthand-properties/-/babel-plugin-transform-es2015-shorthand-properties-6.24.1.tgz#24f875d6721c87661bbd99a4622e51f14de38aa0"
+  resolved "https://registry.yarnpkg.com/babel-helper-get-function-arity/-/babel-helper-get-function-arity-6.24.1.tgz#8f7782aa93407c41d3aa50908f89b031b1b6853d"
+  integrity sha1-j3eCqpNAfEHTqlCQj4mwMbG2hT0=
   dependencies:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-spread@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-spread/-/babel-plugin-transform-es2015-spread-6.22.0.tgz#d6d68a99f89aedc4536c81a542e8dd9f1746f8d1"
-  dependencies:
-    babel-runtime "^6.22.0"
+babel-helper-vue-jsx-merge-props@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/babel-helper-vue-jsx-merge-props/-/babel-helper-vue-jsx-merge-props-2.0.3.tgz#22aebd3b33902328e513293a8e4992b384f9f1b6"
+  integrity sha512-gsLiKK7Qrb7zYJNgiXKpXblxbV5ffSwR0f5whkPAaBAR4fhi6bwRZxX9wBlIc5M/v8CCkXUbXZL4N/nSE97cqg==
 
-babel-plugin-transform-es2015-sticky-regex@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-sticky-regex/-/babel-plugin-transform-es2015-sticky-regex-6.24.1.tgz#00c1cdb1aca71112cdf0cf6126c2ed6b457ccdbc"
+babel-loader@^8.0.4:
+  version "8.0.4"
+  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-8.0.4.tgz#7bbf20cbe4560629e2e41534147692d3fecbdce6"
+  integrity sha512-fhBhNkUToJcW9nV46v8w87AJOwAJDz84c1CL57n3Stj73FANM/b9TbCUK4YhdOwEyZ+OxhYpdeZDNzSI29Firw==
   dependencies:
-    babel-helper-regex "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
+    find-cache-dir "^1.0.0"
+    loader-utils "^1.0.2"
+    mkdirp "^0.5.1"
+    util.promisify "^1.0.0"
 
-babel-plugin-transform-es2015-template-literals@^6.22.0:
-  version "6.22.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-template-literals/-/babel-plugin-transform-es2015-template-literals-6.22.0.tgz#a84b3450f7e9f8f1f6839d6d687da84bb1236d8d"
+babel-messages@^6.23.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel-messages/-/babel-messages-6.23.0.tgz#f3cdf4703858035b2a2951c6ec5edf6c62f2630e"
+  integrity sha1-8830cDhYA1sqKVHG7F7fbGLyYw4=
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-typeof-symbol@^6.22.0:
-  version "6.23.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-typeof-symbol/-/babel-plugin-transform-es2015-typeof-symbol-6.23.0.tgz#dec09f1cddff94b52ac73d505c84df59dcceb372"
+babel-plugin-istanbul@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-5.1.0.tgz#6892f529eff65a3e2d33d87dc5888ffa2ecd4a30"
+  integrity sha512-CLoXPRSUWiR8yao8bShqZUIC6qLfZVVY3X1wj+QPNXu0wfmrRRfarh1LYy+dYMVI+bDj0ghy3tuqFFRFZmL1Nw==
   dependencies:
-    babel-runtime "^6.22.0"
+    find-up "^3.0.0"
+    istanbul-lib-instrument "^3.0.0"
+    test-exclude "^5.0.0"
+
+babel-plugin-syntax-class-properties@^6.8.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-class-properties/-/babel-plugin-syntax-class-properties-6.13.0.tgz#d7eb23b79a317f8543962c505b827c7d6cac27de"
+  integrity sha1-1+sjt5oxf4VDlixQW4J8fWysJ94=
 
-babel-plugin-transform-es2015-unicode-regex@^6.24.1:
+babel-plugin-syntax-flow@^6.18.0, babel-plugin-syntax-flow@^6.8.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-flow/-/babel-plugin-syntax-flow-6.18.0.tgz#4c3ab20a2af26aa20cd25995c398c4eb70310c8d"
+  integrity sha1-TDqyCiryaqIM0lmVw5jE63AxDI0=
+
+babel-plugin-transform-class-properties@^6.8.0:
   version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-unicode-regex/-/babel-plugin-transform-es2015-unicode-regex-6.24.1.tgz#d38b12f42ea7323f729387f18a7c5ae1faeb35e9"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-class-properties/-/babel-plugin-transform-class-properties-6.24.1.tgz#6a79763ea61d33d36f37b611aa9def81a81b46ac"
+  integrity sha1-anl2PqYdM9NvN7YRqp3vgagbRqw=
   dependencies:
-    babel-helper-regex "^6.24.1"
+    babel-helper-function-name "^6.24.1"
+    babel-plugin-syntax-class-properties "^6.8.0"
     babel-runtime "^6.22.0"
-    regexpu-core "^2.0.0"
+    babel-template "^6.24.1"
 
 babel-plugin-transform-flow-strip-types@^6.8.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-flow-strip-types/-/babel-plugin-transform-flow-strip-types-6.22.0.tgz#84cb672935d43714fdc32bce84568d87441cf7cf"
+  integrity sha1-hMtnKTXUNxT9wyvOhFaNh0Qc988=
   dependencies:
     babel-plugin-syntax-flow "^6.18.0"
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-regenerator@^6.24.1:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz#e0703696fbde27f0a3efcacf8b4dca2f7b3a8f2f"
-  dependencies:
-    regenerator-transform "^0.10.0"
-
-babel-plugin-transform-strict-mode@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-strict-mode/-/babel-plugin-transform-strict-mode-6.24.1.tgz#d5faf7aa578a65bbe591cf5edae04a0c67020758"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-types "^6.24.1"
-
-babel-plugin-transform-vue-jsx@^3.4.3:
-  version "3.7.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-vue-jsx/-/babel-plugin-transform-vue-jsx-3.7.0.tgz#d40492e6692a36b594f7e9a1928f43e969740960"
+babel-plugin-transform-vue-jsx@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-vue-jsx/-/babel-plugin-transform-vue-jsx-4.0.1.tgz#2c8bddce87a6ef09eaa59869ff1bfbeeafc5f88d"
+  integrity sha512-wbOz7ITB5cloLSjKUU1hWn8zhR+Dwah/RZiTiJY/CQliCwhowmzu6m7NEF+y5EJX/blDzGjRtZvC10Vdb3Q7vw==
   dependencies:
     esutils "^2.0.2"
 
-babel-preset-es2015@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-preset-es2015/-/babel-preset-es2015-6.24.1.tgz#d44050d6bc2c9feea702aaf38d727a0210538939"
-  dependencies:
-    babel-plugin-check-es2015-constants "^6.22.0"
-    babel-plugin-transform-es2015-arrow-functions "^6.22.0"
-    babel-plugin-transform-es2015-block-scoped-functions "^6.22.0"
-    babel-plugin-transform-es2015-block-scoping "^6.24.1"
-    babel-plugin-transform-es2015-classes "^6.24.1"
-    babel-plugin-transform-es2015-computed-properties "^6.24.1"
-    babel-plugin-transform-es2015-destructuring "^6.22.0"
-    babel-plugin-transform-es2015-duplicate-keys "^6.24.1"
-    babel-plugin-transform-es2015-for-of "^6.22.0"
-    babel-plugin-transform-es2015-function-name "^6.24.1"
-    babel-plugin-transform-es2015-literals "^6.22.0"
-    babel-plugin-transform-es2015-modules-amd "^6.24.1"
-    babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
-    babel-plugin-transform-es2015-modules-systemjs "^6.24.1"
-    babel-plugin-transform-es2015-modules-umd "^6.24.1"
-    babel-plugin-transform-es2015-object-super "^6.24.1"
-    babel-plugin-transform-es2015-parameters "^6.24.1"
-    babel-plugin-transform-es2015-shorthand-properties "^6.24.1"
-    babel-plugin-transform-es2015-spread "^6.22.0"
-    babel-plugin-transform-es2015-sticky-regex "^6.24.1"
-    babel-plugin-transform-es2015-template-literals "^6.22.0"
-    babel-plugin-transform-es2015-typeof-symbol "^6.22.0"
-    babel-plugin-transform-es2015-unicode-regex "^6.24.1"
-    babel-plugin-transform-regenerator "^6.24.1"
-
 babel-preset-flow-vue@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/babel-preset-flow-vue/-/babel-preset-flow-vue-1.0.0.tgz#bd28eb64b53d65f9c47262b32ce6c6033fe70671"
+  integrity sha1-vSjrZLU9ZfnEcmKzLObGAz/nBnE=
   dependencies:
     babel-plugin-syntax-flow "^6.8.0"
     babel-plugin-transform-class-properties "^6.8.0"
     babel-plugin-transform-flow-strip-types "^6.8.0"
 
-babel-register@^6.26.0:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-register/-/babel-register-6.26.0.tgz#6ed021173e2fcb486d7acb45c6009a856f647071"
-  dependencies:
-    babel-core "^6.26.0"
-    babel-runtime "^6.26.0"
-    core-js "^2.5.0"
-    home-or-tmp "^2.0.0"
-    lodash "^4.17.4"
-    mkdirp "^0.5.1"
-    source-map-support "^0.4.15"
-
-babel-runtime@^6.0.0, babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
+babel-runtime@^6.0.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
+  integrity sha1-llxwWGaOgrVde/4E/yM3vItWR/4=
   dependencies:
     core-js "^2.4.0"
     regenerator-runtime "^0.11.0"
 
-babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.26.0:
+babel-template@^6.24.1:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
+  integrity sha1-3gPi0WOWsGn0bdn/+FIfsaDjXgI=
   dependencies:
     babel-runtime "^6.26.0"
     babel-traverse "^6.26.0"
@@ -968,9 +1391,10 @@ babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.26.0:
     babylon "^6.18.0"
     lodash "^4.17.4"
 
-babel-traverse@^6.18.0, babel-traverse@^6.24.1, babel-traverse@^6.26.0:
+babel-traverse@^6.24.1, babel-traverse@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
+  integrity sha1-RqnL1+3MYsjlwGTi0tjQ9ANXZu4=
   dependencies:
     babel-code-frame "^6.26.0"
     babel-messages "^6.23.0"
@@ -982,9 +1406,10 @@ babel-traverse@^6.18.0, babel-traverse@^6.24.1, babel-traverse@^6.26.0:
     invariant "^2.2.2"
     lodash "^4.17.4"
 
-babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
+babel-types@^6.24.1, babel-types@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
+  integrity sha1-o7Bz+Uq0nrb6Vc1lInozQ4BjJJc=
   dependencies:
     babel-runtime "^6.26.0"
     esutils "^2.0.2"
@@ -994,34 +1419,42 @@ babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26
 babylon@7.0.0-beta.40, babylon@^7.0.0-beta.40:
   version "7.0.0-beta.40"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.40.tgz#91fc8cd56d5eb98b28e6fde41045f2957779940a"
+  integrity sha512-AVxF2EcxvGD5hhOuLTOLAXBb0VhwWpEX0HyHdAI2zU+AAP4qEwtQj8voz1JR3uclGai0rfcE+dCTHnNMOnimFg==
 
 babylon@^6.18.0, babylon@^6.8.4:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
+  integrity sha512-q/UEjfGJ2Cm3oKV71DJz9d25TPnq5rhBVL2Q4fA5wcC3jcrdn7+SssEybFIxwAvvP+YCsCYNKughoF33GxgycQ==
 
 backo2@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
+  integrity sha1-MasayLEpNjRj41s+u2n038+6eUc=
 
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
+  integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
 base64-arraybuffer@0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz#73926771923b5a19747ad666aa5cd4bf9c6e9ce8"
+  integrity sha1-c5JncZI7Whl0etZmqlzUv5xunOg=
 
 base64-js@^1.0.2:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.2.3.tgz#fb13668233d9614cf5fb4bce95a9ba4096cdf801"
+  integrity sha512-MsAhsUW1GxCdgYSO6tAfZrNapmUKk7mWx/k5mFY/A1gBtkaCaNapTg+FExCw1r9yeaZhqx/xPg43xgTFH6KL5w==
 
 base64id@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/base64id/-/base64id-1.0.0.tgz#47688cb99bb6804f0e06d3e763b1c32e57d8e6b6"
+  integrity sha1-R2iMuZu2gE8OBtPnY7HDLlfY5rY=
 
 base@^0.11.1:
   version "0.11.2"
   resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
+  integrity sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==
   dependencies:
     cache-base "^1.0.1"
     class-utils "^0.3.5"
@@ -1034,62 +1467,74 @@ base@^0.11.1:
 bcrypt-pbkdf@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz#63bc5dcb61331b92bc05fd528953c33462a06f8d"
+  integrity sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=
   dependencies:
     tweetnacl "^0.14.3"
 
 better-assert@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/better-assert/-/better-assert-1.0.2.tgz#40866b9e1b9e0b55b481894311e68faffaebc522"
+  integrity sha1-QIZrnhueC1W0gYlDEeaPr/rrxSI=
   dependencies:
     callsite "1.0.0"
 
 big.js@^3.1.3:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.2.0.tgz#a5fc298b81b9e0dca2e458824784b65c52ba588e"
+  integrity sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==
 
 binary-extensions@^1.0.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
+  integrity sha1-RqoXUftqL5PuXmibsQh9SxTGwgU=
 
 bitsyntax@~0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/bitsyntax/-/bitsyntax-0.0.4.tgz#eb10cc6f82b8c490e3e85698f07e83d46e0cba82"
+  integrity sha1-6xDMb4K4xJDj6FaY8H6D1G4MuoI=
   dependencies:
     buffer-more-ints "0.0.2"
 
 bl@^1.0.0:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.1.tgz#cac328f7bee45730d404b692203fcb590e172d5e"
+  integrity sha1-ysMo977kVzDUBLaSID/LWQ4XLV4=
   dependencies:
     readable-stream "^2.0.5"
 
 bl@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/bl/-/bl-1.1.2.tgz#fdca871a99713aa00d19e3bbba41c44787a65398"
+  integrity sha1-/cqHGplxOqANGeO7ukHER4emU5g=
   dependencies:
     readable-stream "~2.0.5"
 
 blob@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
+  integrity sha1-vPEwUspURj8w+fx+lbmkdjCpSSE=
 
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
+  integrity sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=
   dependencies:
     inherits "~2.0.0"
 
 bluebird@^3.3.0, bluebird@^3.4.6:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
+  integrity sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
 
 bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
+  integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
 
 body-parser@^1.16.1:
   version "1.18.2"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.2.tgz#87678a19d84b47d859b83199bd59bce222b10454"
+  integrity sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=
   dependencies:
     bytes "3.0.0"
     content-type "~1.0.4"
@@ -1105,24 +1550,28 @@ body-parser@^1.16.1:
 boom@2.x.x:
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
+  integrity sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=
   dependencies:
     hoek "2.x.x"
 
 boom@4.x.x:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/boom/-/boom-4.3.1.tgz#4f8a3005cb4a7e3889f749030fd25b96e01d2e31"
+  integrity sha1-T4owBctKfjiJ90kDD9JbluAdLjE=
   dependencies:
     hoek "4.x.x"
 
 boom@5.x.x:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/boom/-/boom-5.2.0.tgz#5dd9da6ee3a5f302077436290cb717d3f4a54e02"
+  integrity sha512-Z5BTk6ZRe4tXXQlkqftmsAUANpXmuwlsF5Oov8ThoMbQRzdGTA1ngYRW160GexgOgjsFOKJz0LYhoNi+2AMBUw==
   dependencies:
     hoek "4.x.x"
 
 brace-expansion@^1.0.0, brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
+  integrity sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==
   dependencies:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
@@ -1130,12 +1579,14 @@ brace-expansion@^1.0.0, brace-expansion@^1.1.7:
 braces@^0.1.2:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/braces/-/braces-0.1.5.tgz#c085711085291d8b75fdd74eab0f8597280711e6"
+  integrity sha1-wIVxEIUpHYt1/ddOqw+FlygHEeY=
   dependencies:
     expand-range "^0.1.0"
 
 braces@^1.8.2:
   version "1.8.5"
   resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
+  integrity sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=
   dependencies:
     expand-range "^1.8.1"
     preserve "^0.2.0"
@@ -1144,6 +1595,7 @@ braces@^1.8.2:
 braces@^2.3.0, braces@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.1.tgz#7086c913b4e5a08dbe37ac0ee6a2500c4ba691bb"
+  integrity sha512-SO5lYHA3vO6gz66erVvedSCkp7AKWdv6VcQ2N4ysXfPxdAlxAMMAdwegGGcv1Bqwm7naF1hNdk5d6AAIEHV2nQ==
   dependencies:
     arr-flatten "^1.1.0"
     array-unique "^0.3.2"
@@ -1161,10 +1613,12 @@ braces@^2.3.0, braces@^2.3.1:
 brorand@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
+  integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
 
 browser-pack@^6.0.1:
   version "6.0.4"
   resolved "https://registry.yarnpkg.com/browser-pack/-/browser-pack-6.0.4.tgz#9a73beb3b48f9e36868be007b64400102c04a99f"
+  integrity sha512-Q4Rvn7P6ObyWfc4stqLWHtG1MJ8vVtjgT24Zbu+8UTzxYuZouqZsmNRRTFVMY/Ux0eIKv1d+JWzsInTX+fdHPQ==
   dependencies:
     JSONStream "^1.0.3"
     combine-source-map "~0.8.0"
@@ -1176,20 +1630,24 @@ browser-pack@^6.0.1:
 browser-process-hrtime@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/browser-process-hrtime/-/browser-process-hrtime-0.1.2.tgz#425d68a58d3447f02a04aa894187fce8af8b7b8e"
+  integrity sha1-Ql1opY00R/AqBKqJQYf86K+Le44=
 
 browser-resolve@^1.11.0, browser-resolve@^1.11.2, browser-resolve@^1.7.0:
   version "1.11.2"
   resolved "https://registry.yarnpkg.com/browser-resolve/-/browser-resolve-1.11.2.tgz#8ff09b0a2c421718a1051c260b32e48f442938ce"
+  integrity sha1-j/CbCixCFxihBRwmCzLkj0QpOM4=
   dependencies:
     resolve "1.1.7"
 
 browser-stdout@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
+  integrity sha1-81HTKWnTL6XXpVZxVCY9korjvR8=
 
 browserify-aes@^1.0.0, browserify-aes@^1.0.4:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-1.1.1.tgz#38b7ab55edb806ff2dcda1a7f1620773a477c49f"
+  integrity sha512-UGnTYAnB2a3YuYKIRy1/4FB2HdM866E0qC46JXvVTYKlBlZlnvfpSfY6OKfXZAkv70eJ2a1SqzpAo5CRhZGDFg==
   dependencies:
     buffer-xor "^1.0.3"
     cipher-base "^1.0.0"
@@ -1201,6 +1659,7 @@ browserify-aes@^1.0.0, browserify-aes@^1.0.4:
 browserify-cipher@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/browserify-cipher/-/browserify-cipher-1.0.0.tgz#9988244874bf5ed4e28da95666dcd66ac8fc363a"
+  integrity sha1-mYgkSHS/XtTijalWZtzWasj8Njo=
   dependencies:
     browserify-aes "^1.0.4"
     browserify-des "^1.0.0"
@@ -1209,6 +1668,7 @@ browserify-cipher@^1.0.0:
 browserify-des@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/browserify-des/-/browserify-des-1.0.0.tgz#daa277717470922ed2fe18594118a175439721dd"
+  integrity sha1-2qJ3cXRwki7S/hhZQRihdUOXId0=
   dependencies:
     cipher-base "^1.0.1"
     des.js "^1.0.0"
@@ -1217,6 +1677,7 @@ browserify-des@^1.0.0:
 browserify-rsa@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
+  integrity sha1-IeCr+vbyApzy+vsTNWenAdQTVSQ=
   dependencies:
     bn.js "^4.1.0"
     randombytes "^2.0.1"
@@ -1224,6 +1685,7 @@ browserify-rsa@^4.0.0:
 browserify-sign@^4.0.0:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.0.4.tgz#aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298"
+  integrity sha1-qk62jl17ZYuqa/alfmMMvXqT0pg=
   dependencies:
     bn.js "^4.1.1"
     browserify-rsa "^4.0.0"
@@ -1236,12 +1698,14 @@ browserify-sign@^4.0.0:
 browserify-zlib@^0.2.0, browserify-zlib@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/browserify-zlib/-/browserify-zlib-0.2.0.tgz#2869459d9aa3be245fe8fe2ca1f46e2e7f54d73f"
+  integrity sha512-Z942RysHXmJrhqk88FmKBVq/v5tqmSkDz7p54G/MGyjMnCFFnC79XWNbg+Vta8W6Wb2qtSZTSxIGkJrRpCFEiA==
   dependencies:
     pako "~1.0.5"
 
 browserify@^14.5.0:
   version "14.5.0"
   resolved "https://registry.yarnpkg.com/browserify/-/browserify-14.5.0.tgz#0bbbce521acd6e4d1d54d8e9365008efb85a9cc5"
+  integrity sha512-gKfOsNQv/toWz+60nSPfYzuwSEdzvV2WdxrVPUbPD/qui44rAkB3t3muNtmmGYHqrG56FGwX9SUEQmzNLAeS7g==
   dependencies:
     JSONStream "^1.0.3"
     assert "^1.4.0"
@@ -1291,9 +1755,19 @@ browserify@^14.5.0:
     vm-browserify "~0.0.1"
     xtend "^4.0.0"
 
+browserslist@^4.1.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.2.1.tgz#257a24c879d1cd4016348eee5c25de683260b21d"
+  integrity sha512-1oO0c7Zhejwd+LXihS89WqtKionSbz298rJZKJgfrHIZhrV8AC15gw553VcB0lcEugja7IhWD7iAlrsamfYVPA==
+  dependencies:
+    caniuse-lite "^1.0.30000890"
+    electron-to-chromium "^1.3.79"
+    node-releases "^1.0.0-alpha.14"
+
 buble@^0.19.2, buble@^0.19.3:
   version "0.19.3"
   resolved "https://registry.yarnpkg.com/buble/-/buble-0.19.3.tgz#01e9412062cff1da6f20342b6ecd72e7bf699d02"
+  integrity sha512-3B0Lcy2u6x6km0BqTz/FS3UnrOJlnIlBWsyjvtqzdtmWkqiS0+Sg4hc6L9Mmm63hZKTACpYS9vUeIoKSi1vcrQ==
   dependencies:
     acorn "^5.4.1"
     acorn-dynamic-import "^3.0.0"
@@ -1307,18 +1781,27 @@ buble@^0.19.2, buble@^0.19.3:
 buffer-crc32@^0.2.1:
   version "0.2.13"
   resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
+  integrity sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=
+
+buffer-from@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
+  integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
 
 buffer-more-ints@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/buffer-more-ints/-/buffer-more-ints-0.0.2.tgz#26b3885d10fa13db7fc01aae3aab870199e0124c"
+  integrity sha1-JrOIXRD6E9t/wBquOquHAZngEkw=
 
 buffer-xor@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
+  integrity sha1-JuYe0UIvtw3ULm42cp7VHYVf6Nk=
 
 buffer@^4.3.0:
   version "4.9.1"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
+  integrity sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=
   dependencies:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
@@ -1327,6 +1810,7 @@ buffer@^4.3.0:
 buffer@^5.0.2:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.1.0.tgz#c913e43678c7cb7c8bd16afbcddb6c5505e8f9fe"
+  integrity sha512-YkIRgwsZwJWTnyQrsBTWefizHh+8GYj3kbL1BTiAQ/9pwpino0G7B2gp5tx/FUBqUlvtxV85KNR3mwfAtv15Yw==
   dependencies:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
@@ -1334,6 +1818,7 @@ buffer@^5.0.2:
 buildmail@4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/buildmail/-/buildmail-4.0.1.tgz#877f7738b78729871c9a105e3b837d2be11a7a72"
+  integrity sha1-h393OLeHKYccmhBeO4N9K+EaenI=
   dependencies:
     addressparser "1.0.1"
     libbase64 "0.1.0"
@@ -1346,22 +1831,27 @@ buildmail@4.0.1:
 builtin-modules@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
+  integrity sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=
 
 builtin-modules@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-2.0.0.tgz#60b7ef5ae6546bd7deefa74b08b62a43a232648e"
+  integrity sha512-3U5kUA5VPsRUA3nofm/BXX7GVHKfxz0hOBAPxXrIvHzlDRkQVqEn6yi8QJegxl4LzOHLdvb7XF5dVawa/VVYBg==
 
 builtin-status-codes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
+  integrity sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug=
 
 bytes@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
+  integrity sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=
 
 cache-base@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
+  integrity sha512-AKcdTnFSWATd5/GCPRxr2ChwIJ85CeyrEyjRHlKxQ56d4XJMGym0uAiKn0xbLOGOl3+yRpOTi484dVCEc5AUzQ==
   dependencies:
     collection-visit "^1.0.0"
     component-emitter "^1.2.1"
@@ -1376,34 +1866,41 @@ cache-base@^1.0.1:
 cached-path-relative@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cached-path-relative/-/cached-path-relative-1.0.1.tgz#d09c4b52800aa4c078e2dd81a869aac90d2e54e7"
+  integrity sha1-0JxLUoAKpMB44t2BqGmqyQ0uVOc=
 
 cachedir@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/cachedir/-/cachedir-1.2.0.tgz#e9a0a25bb21a2b7a0f766f07c41eb7a311919b97"
+  integrity sha512-i3xIKd9U4ov0hWXYo08oJy0YVz0krZ9dbTZQim41xkg0IiScptkAK0UilZ5M1WE3gnWjXAa9+cMtrJ5dM+THbA==
   dependencies:
     os-homedir "^1.0.1"
 
 caller-path@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
+  integrity sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=
   dependencies:
     callsites "^0.2.0"
 
 callsite@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
+  integrity sha1-KAOY5dZkvXQDi28JBRU+borxvCA=
 
 callsites@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
+  integrity sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=
 
 callsites@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
+  integrity sha1-BuuE8A7qQT2oav/vrL/7Ngk7PFA=
 
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
+  integrity sha1-MIvur/3ygRkFHvodkyITyRuPkuc=
   dependencies:
     camelcase "^2.0.0"
     map-obj "^1.0.0"
@@ -1411,6 +1908,7 @@ camelcase-keys@^2.0.0:
 camelcase-keys@^4.0.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-4.2.0.tgz#a2aa5fb1af688758259c32c141426d78923b9b77"
+  integrity sha1-oqpfsa9oh1glnDLBQUJteJI7m3c=
   dependencies:
     camelcase "^4.1.0"
     map-obj "^2.0.0"
@@ -1419,26 +1917,37 @@ camelcase-keys@^4.0.0:
 camelcase@^1.0.2:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
+  integrity sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=
 
 camelcase@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
+  integrity sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=
 
 camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
+  integrity sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=
+
+caniuse-lite@^1.0.30000890:
+  version "1.0.30000890"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000890.tgz#86a18ffcc65d79ec6a437e985761b8bf1c4efeaf"
+  integrity sha512-4NI3s4Y6ROm+SgZN5sLUG4k7nVWQnedis3c/RWkynV5G6cHSY7+a8fwFyn2yoBDE3E6VswhTNNwR3PvzGqlTkg==
 
 caseless@~0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.11.0.tgz#715b96ea9841593cc33067923f5ec60ebda4f7d7"
+  integrity sha1-cVuW6phBWTzDMGeSP17GDr2k99c=
 
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
+  integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
 center-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/center-align/-/center-align-0.1.3.tgz#aa0d32629b6ee972200411cbd4461c907bc2b7ad"
+  integrity sha1-qg0yYptu6XIgBBHL1EYckHvCt60=
   dependencies:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
@@ -1446,6 +1955,7 @@ center-align@^0.1.1:
 chai-nightwatch@~0.1.x:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/chai-nightwatch/-/chai-nightwatch-0.1.1.tgz#1ca56de768d3c0868fe7fc2f4d32c2fe894e6be9"
+  integrity sha1-HKVt52jTwIaP5/wvTTLC/olOa+k=
   dependencies:
     assertion-error "1.0.0"
     deep-eql "0.1.3"
@@ -1453,6 +1963,7 @@ chai-nightwatch@~0.1.x:
 chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  integrity sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=
   dependencies:
     ansi-styles "^2.2.1"
     escape-string-regexp "^1.0.2"
@@ -1463,6 +1974,7 @@ chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
 chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.2.tgz#250dc96b07491bfd601e648d66ddf5f60c7a5c65"
+  integrity sha512-ZM4j2/ld/YZDc3Ma8PgN7gyAk+kHMMMyzLNryCPGhWrsfAuDVeuid5bpRFTDgMH9JBK2lA4dyyAkkZYF/WcqDQ==
   dependencies:
     ansi-styles "^3.2.1"
     escape-string-regexp "^1.0.5"
@@ -1471,10 +1983,12 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1:
 chardet@^0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
+  integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
 
 chokidar@^1.4.1, chokidar@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
+  integrity sha1-eY5ol3gVHIB2tLNg5e3SjNortGg=
   dependencies:
     anymatch "^1.3.0"
     async-each "^1.0.0"
@@ -1490,6 +2004,7 @@ chokidar@^1.4.1, chokidar@^1.7.0:
 chokidar@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.2.tgz#4dc65139eeb2714977735b6a35d06e97b494dfd7"
+  integrity sha512-l32Hw3wqB0L2kGVmSbK/a+xXLDrUEsc84pSgMkmwygHvD7ubRsP/vxxHa5BtB6oix1XLLVCHyYMsckRXxThmZw==
   dependencies:
     anymatch "^2.0.0"
     async-each "^1.0.0"
@@ -1508,6 +2023,7 @@ chokidar@^2.0.2:
 chromedriver@^2.30.1:
   version "2.36.0"
   resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-2.36.0.tgz#6a9473e11b50e7181ef8cd6476680e7f167374cd"
+  integrity sha512-Lq2HrigCJ4RVdIdCmchenv1rVrejNSJ7EUCQojycQo12ww3FedQx4nb+GgTdqMhjbOMTqq5+ziaiZlrEN2z1gQ==
   dependencies:
     del "^3.0.0"
     extract-zip "^1.6.5"
@@ -1518,10 +2034,12 @@ chromedriver@^2.30.1:
 ci-info@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.1.2.tgz#03561259db48d0474c8bdc90f5b47b068b6bbfb4"
+  integrity sha512-uTGIPNx/nSpBdsF6xnseRXLLtfr9VLqkz8ZqHXr3Y7b6SftyRxBGjwMtJj1OhNbmlc1wZzLNAlAcvyIiE8a6ZA==
 
 cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/cipher-base/-/cipher-base-1.0.4.tgz#8760e4ecc272f4c363532f926d874aae2c1397de"
+  integrity sha512-Kkht5ye6ZGmwv40uUDZztayT2ThLQGfnj/T71N/XzeZeo3nf8foyW7zGTsPYkEya3m5f3cAypH+qe7YOrM1U2Q==
   dependencies:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
@@ -1529,14 +2047,17 @@ cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
 circular-json@^0.3.1:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
+  integrity sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A==
 
 circular-json@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.5.1.tgz#b8942a09e535863dc21b04417a91971e1d9cd91f"
+  integrity sha512-UjgcRlTAhAkLeXmDe2wK7ktwy/tgAqxiSndTIPiFZuIPLZmzHzWMwUIe9h9m/OokypG7snxCDEuwJshGBdPvaw==
 
 class-utils@^0.3.5:
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/class-utils/-/class-utils-0.3.6.tgz#f93369ae8b9a7ce02fd41faad0ca83033190c463"
+  integrity sha512-qOhPa/Fj7s6TY8H8esGu5QNpMMQxz79h+urzrNYN6mn+9BnxlDGf5QZ+XeCDsxSjPqsSR56XOZOJmpeurnLMeg==
   dependencies:
     arr-union "^3.1.0"
     define-property "^0.2.5"
@@ -1546,22 +2067,26 @@ class-utils@^0.3.5:
 cli-cursor@^1.0.1, cli-cursor@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
+  integrity sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc=
   dependencies:
     restore-cursor "^1.0.1"
 
 cli-cursor@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
+  integrity sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=
   dependencies:
     restore-cursor "^2.0.0"
 
 cli-spinners@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-0.1.2.tgz#bb764d88e185fb9e1e6a2a1f19772318f605e31c"
+  integrity sha1-u3ZNiOGF+54eaiofGXcjGPYF4xw=
 
 cli-truncate@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/cli-truncate/-/cli-truncate-0.2.1.tgz#9f15cfbb0705005369216c626ac7d05ab90dd574"
+  integrity sha1-nxXPuwcFAFNpIWxiasfQWrkN1XQ=
   dependencies:
     slice-ansi "0.0.4"
     string-width "^1.0.1"
@@ -1569,10 +2094,12 @@ cli-truncate@^0.2.1:
 cli-width@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
+  integrity sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=
 
 cliui@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
+  integrity sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=
   dependencies:
     center-align "^0.1.1"
     right-align "^0.1.1"
@@ -1581,6 +2108,7 @@ cliui@^2.1.0:
 cliui@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+  integrity sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=
   dependencies:
     string-width "^1.0.1"
     strip-ansi "^3.0.1"
@@ -1589,18 +2117,22 @@ cliui@^3.2.0:
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
+  integrity sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=
 
 co@~3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/co/-/co-3.0.6.tgz#1445f226c5eb956138e68c9ac30167ea7d2e6bda"
+  integrity sha1-FEXyJsXrlWE45oyawwFn6n0ua9o=
 
 code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
+  integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
 
 codecov@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.1.0.tgz#340bd968d361f256976b5af782dd8ba9f82bc849"
+  integrity sha512-aWQc/rtHbcWEQLka6WmBAOpV58J2TwyXqlpAQGhQaSiEUoigTTUk6lLd2vB3kXkhnDyzyH74RXfmV4dq2txmdA==
   dependencies:
     argv "^0.0.2"
     ignore-walk "^3.0.1"
@@ -1611,6 +2143,7 @@ codecov@^3.0.0:
 collection-visit@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/collection-visit/-/collection-visit-1.0.0.tgz#4bc0373c164bc3291b4d368c829cf1a80a59dca0"
+  integrity sha1-S8A3PBZLwykbTTaMgpzxqApZ3KA=
   dependencies:
     map-visit "^1.0.0"
     object-visit "^1.0.0"
@@ -1618,30 +2151,36 @@ collection-visit@^1.0.0:
 color-convert@^1.9.0:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.1.tgz#c1261107aeb2f294ebffec9ed9ecad529a6097ed"
+  integrity sha512-mjGanIiwQJskCC18rPR6OmrZ6fm2Lc7PeGFYwCmy5J34wC6F1PzdGL6xeMfmgicfYcNLGuVFA3WzXtIDCQSZxQ==
   dependencies:
     color-name "^1.1.1"
 
 color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+  integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
 
 colors@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+  integrity sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=
 
 colors@^1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
+  integrity sha1-FopHAXVran9RoSzgyXv6KMCE7WM=
 
 combine-lists@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/combine-lists/-/combine-lists-1.0.1.tgz#458c07e09e0d900fc28b70a3fec2dacd1d2cb7f6"
+  integrity sha1-RYwH4J4NkA/Ci3Cj/sLazR0st/Y=
   dependencies:
     lodash "^4.5.0"
 
 combine-source-map@~0.7.1:
   version "0.7.2"
   resolved "https://registry.yarnpkg.com/combine-source-map/-/combine-source-map-0.7.2.tgz#0870312856b307a87cc4ac486f3a9a62aeccc09e"
+  integrity sha1-CHAxKFazB6h8xKxIbzqaYq7MwJ4=
   dependencies:
     convert-source-map "~1.1.0"
     inline-source-map "~0.6.0"
@@ -1651,6 +2190,7 @@ combine-source-map@~0.7.1:
 combine-source-map@~0.8.0:
   version "0.8.0"
   resolved "https://registry.yarnpkg.com/combine-source-map/-/combine-source-map-0.8.0.tgz#a58d0df042c186fcf822a8e8015f5450d2d79a8b"
+  integrity sha1-pY0N8ELBhvz4IqjoAV9UUNLXmos=
   dependencies:
     convert-source-map "~1.1.0"
     inline-source-map "~0.6.0"
@@ -1660,22 +2200,26 @@ combine-source-map@~0.8.0:
 combined-stream@1.0.6, combined-stream@^1.0.5, combined-stream@~1.0.5, combined-stream@~1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
+  integrity sha1-cj599ugBrFYTETp+RFqbactjKBg=
   dependencies:
     delayed-stream "~1.0.0"
 
 commander@2.9.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
+  integrity sha1-nJkJQXbhIkDLItbFFGCYQA/g99Q=
   dependencies:
     graceful-readlink ">= 1.0.0"
 
 commander@^2.14.1, commander@^2.9.0, commander@~2.14.1:
   version "2.14.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.14.1.tgz#2235123e37af8ca3c65df45b026dbd357b01b9aa"
+  integrity sha512-+YR16o3rK53SmWHU3rEM3tPAh2rwb1yPcQX5irVn7mb0gXbwuCCrnkbV5+PBfETdfg1vui07nM6PCG1zndcjQw==
 
 commitizen@^2.9.6:
   version "2.9.6"
   resolved "https://registry.yarnpkg.com/commitizen/-/commitizen-2.9.6.tgz#c0d00535ef264da7f63737edfda4228983fa2291"
+  integrity sha1-wNAFNe8mTaf2Nzft/aQiiYP6IpE=
   dependencies:
     cachedir "^1.1.0"
     chalk "1.1.3"
@@ -1696,10 +2240,12 @@ commitizen@^2.9.6:
 commondir@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
+  integrity sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=
 
 compare-func@^1.3.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/compare-func/-/compare-func-1.3.2.tgz#99dd0ba457e1f9bc722b12c08ec33eeab31fa648"
+  integrity sha1-md0LpFfh+bxyKxLAjsM+6rMfpkg=
   dependencies:
     array-ify "^1.0.0"
     dot-prop "^3.0.0"
@@ -1707,18 +2253,22 @@ compare-func@^1.3.1:
 component-bind@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
+  integrity sha1-AMYIq33Nk4l8AAllGx06jh5zu9E=
 
 component-emitter@1.2.1, component-emitter@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
+  integrity sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=
 
 component-inherit@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
+  integrity sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM=
 
 compress-commons@^1.2.0:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/compress-commons/-/compress-commons-1.2.2.tgz#524a9f10903f3a813389b0225d27c48bb751890f"
+  integrity sha1-UkqfEJA/OoEzibAiXSfEi7dRiQ8=
   dependencies:
     buffer-crc32 "^0.2.1"
     crc32-stream "^2.0.0"
@@ -1728,10 +2278,12 @@ compress-commons@^1.2.0:
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
+  integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
 concat-stream@1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
+  integrity sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=
   dependencies:
     inherits "^2.0.3"
     readable-stream "^2.2.2"
@@ -1740,6 +2292,7 @@ concat-stream@1.6.0:
 concat-stream@^1.4.7, concat-stream@^1.6.0:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.1.tgz#261b8f518301f1d834e36342b9fea095d2620a26"
+  integrity sha512-gslSSJx03QKa59cIKqeJO9HQ/WZMotvYJCuaUULrLpjj8oG40kV2Z+gz82pVxlTkOADi4PJxQPPfhl1ELYrrXw==
   dependencies:
     inherits "^2.0.3"
     readable-stream "^2.2.2"
@@ -1748,6 +2301,7 @@ concat-stream@^1.4.7, concat-stream@^1.6.0:
 concat-stream@~1.5.0, concat-stream@~1.5.1:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.5.2.tgz#708978624d856af41a5a741defdd261da752c266"
+  integrity sha1-cIl4Yk2FavQaWnQd790mHadSwmY=
   dependencies:
     inherits "~2.0.1"
     readable-stream "~2.0.0"
@@ -1756,6 +2310,7 @@ concat-stream@~1.5.0, concat-stream@~1.5.1:
 connect@^3.6.0:
   version "3.6.6"
   resolved "https://registry.yarnpkg.com/connect/-/connect-3.6.6.tgz#09eff6c55af7236e137135a72574858b6786f524"
+  integrity sha1-Ce/2xVr3I24TcTWnJXSFi2eG9SQ=
   dependencies:
     debug "2.6.9"
     finalhandler "1.1.0"
@@ -1765,28 +2320,34 @@ connect@^3.6.0:
 console-browserify@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/console-browserify/-/console-browserify-1.1.0.tgz#f0241c45730a9fc6323b206dbf38edc741d0bb10"
+  integrity sha1-8CQcRXMKn8YyOyBtvzjtx0HQuxA=
   dependencies:
     date-now "^0.1.4"
 
 console-control-strings@^1.0.0, console-control-strings@~1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
+  integrity sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=
 
 constants-browserify@^1.0.0, constants-browserify@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
+  integrity sha1-wguW2MYXdIqvHBYCF2DNJ/y4y3U=
 
 content-type-parser@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/content-type-parser/-/content-type-parser-1.0.2.tgz#caabe80623e63638b2502fd4c7f12ff4ce2352e7"
+  integrity sha512-lM4l4CnMEwOLHAHr/P6MEZwZFPJFtAAKgL6pogbXmVZggIqXhdB6RbBtPOTsw2FcXwYhehRGERJmRrjOiIB8pQ==
 
 content-type@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
+  integrity sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==
 
 conventional-changelog-angular@^1.6.6:
   version "1.6.6"
   resolved "https://registry.yarnpkg.com/conventional-changelog-angular/-/conventional-changelog-angular-1.6.6.tgz#b27f2b315c16d0a1f23eb181309d0e6a4698ea0f"
+  integrity sha512-suQnFSqCxRwyBxY68pYTsFkG0taIdinHLNEAX5ivtw8bCRnIgnpvcHmlR/yjUyZIrNPYAoXlY1WiEKWgSE4BNg==
   dependencies:
     compare-func "^1.3.1"
     q "^1.5.1"
@@ -1794,18 +2355,21 @@ conventional-changelog-angular@^1.6.6:
 conventional-changelog-atom@^0.2.4:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/conventional-changelog-atom/-/conventional-changelog-atom-0.2.4.tgz#4917759947f4db86073f9d3838a2d54302d5843d"
+  integrity sha512-4+hmbBwcAwx1XzDZ4aEOxk/ONU0iay10G0u/sld16ksgnRUHN7CxmZollm3FFaptr6VADMq1qxomA+JlpblBlg==
   dependencies:
     q "^1.5.1"
 
 conventional-changelog-codemirror@^0.3.4:
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/conventional-changelog-codemirror/-/conventional-changelog-codemirror-0.3.4.tgz#debc43991d487d7964e65087fbbe034044bd51fb"
+  integrity sha512-8M7pGgQVzRU//vG3rFlLYqqBywOLxu9XM0/lc1/1Ll7RuKA79PgK9TDpuPmQDHFnqGS7D1YiZpC3Z0D9AIYExg==
   dependencies:
     q "^1.5.1"
 
 conventional-changelog-core@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/conventional-changelog-core/-/conventional-changelog-core-2.0.5.tgz#45b6347c4c6512e1f163f7ff55c9f5bcb88fd990"
+  integrity sha512-lP1s7Z3NyEFcG78bWy7GG7nXsq9OpAJgo2xbyAlVBDweLSL5ghvyEZlkEamnAQpIUVK0CAVhs8nPvCiQuXT/VA==
   dependencies:
     conventional-changelog-writer "^3.0.4"
     conventional-commits-parser "^2.1.5"
@@ -1824,36 +2388,42 @@ conventional-changelog-core@^2.0.5:
 conventional-changelog-ember@^0.3.6:
   version "0.3.6"
   resolved "https://registry.yarnpkg.com/conventional-changelog-ember/-/conventional-changelog-ember-0.3.6.tgz#f3825d7434168f3d9211b5532dc1d5769532b668"
+  integrity sha512-hBM1xb5IrjNtsjXaGryPF/Wn36cwyjkNeqX/CIDbJv/1kRFBHsWoSPYBiNVEpg8xE5fcK4DbPhGTDN2sVoPeiA==
   dependencies:
     q "^1.5.1"
 
 conventional-changelog-eslint@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/conventional-changelog-eslint/-/conventional-changelog-eslint-1.0.5.tgz#8bae05ebbf574e6506caf7b37dc51ca21b74d220"
+  integrity sha512-7NUv+gMOS8Y49uPFRgF7kuLZqpnrKa2bQMZZsc62NzvaJmjUktnV03PYHuXhTDEHt5guvV9gyEFtUpgHCDkojg==
   dependencies:
     q "^1.5.1"
 
 conventional-changelog-express@^0.3.4:
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/conventional-changelog-express/-/conventional-changelog-express-0.3.4.tgz#812a9cf778677e12f978ac9c40d85297c0bfcca9"
+  integrity sha512-M+UUb715TXT6l9vyMf4HYvAepnQn0AYTcPi6KHrFsd80E0HErjQnqStBg8i3+Qm7EV9+RyATQEnIhSzHbdQ7+A==
   dependencies:
     q "^1.5.1"
 
 conventional-changelog-jquery@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/conventional-changelog-jquery/-/conventional-changelog-jquery-0.1.0.tgz#0208397162e3846986e71273b6c79c5b5f80f510"
+  integrity sha1-Agg5cWLjhGmG5xJztsecW1+A9RA=
   dependencies:
     q "^1.4.1"
 
 conventional-changelog-jscs@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/conventional-changelog-jscs/-/conventional-changelog-jscs-0.1.0.tgz#0479eb443cc7d72c58bf0bcf0ef1d444a92f0e5c"
+  integrity sha1-BHnrRDzH1yxYvwvPDvHURKkvDlw=
   dependencies:
     q "^1.4.1"
 
 conventional-changelog-jshint@^0.3.4:
   version "0.3.4"
   resolved "https://registry.yarnpkg.com/conventional-changelog-jshint/-/conventional-changelog-jshint-0.3.4.tgz#b2de33cd0870d9af804ac6a4fded0ee25b69c9bb"
+  integrity sha512-CdrqwDgL56b176FVxHmhuOvnO1dRDQvrMaHyuIVjcFlOXukATz2wVT17g8jQU3LvybVbyXvJRbdD5pboo7/1KQ==
   dependencies:
     compare-func "^1.3.1"
     q "^1.5.1"
@@ -1861,10 +2431,12 @@ conventional-changelog-jshint@^0.3.4:
 conventional-changelog-preset-loader@^1.1.6:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/conventional-changelog-preset-loader/-/conventional-changelog-preset-loader-1.1.6.tgz#b29af6332f9313857be36427623c9016bfeeaf33"
+  integrity sha512-yWPIP9wwsCKeUSPYApnApWhKIDjWRIX/uHejGS1tYfEsQR/bwpDFET7LYiHT+ujNbrlf6h1s3NlPGheOd4yJRQ==
 
 conventional-changelog-writer@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/conventional-changelog-writer/-/conventional-changelog-writer-3.0.4.tgz#705b46a8b8277bd7fd79cad8032095b5d803864c"
+  integrity sha512-EUf/hWiEj3IOa5Jk8XDzM6oS0WgijlYGkUfLc+mDnLH9RwpZqhYIBwgJHWHzEB4My013wx2FhmUu45P6tQrucw==
   dependencies:
     compare-func "^1.3.1"
     conventional-commits-filter "^1.1.5"
@@ -1880,6 +2452,7 @@ conventional-changelog-writer@^3.0.4:
 conventional-changelog@^1.1.3:
   version "1.1.18"
   resolved "https://registry.yarnpkg.com/conventional-changelog/-/conventional-changelog-1.1.18.tgz#ffe28798e4ddef5f6e2f74398e8248bcb233360b"
+  integrity sha512-swf5bqhm7PsY2cw6zxuPy6+rZiiGwEpQnrWki+L+z2oZI53QSYwU4brpljmmWss821AsiwmVL+7V6hP+ER+TBA==
   dependencies:
     conventional-changelog-angular "^1.6.6"
     conventional-changelog-atom "^0.2.4"
@@ -1896,10 +2469,12 @@ conventional-changelog@^1.1.3:
 conventional-commit-types@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/conventional-commit-types/-/conventional-commit-types-2.2.0.tgz#5db95739d6c212acbe7b6f656a11b940baa68946"
+  integrity sha1-XblXOdbCEqy+e29lahG5QLqmiUY=
 
 conventional-commits-filter@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/conventional-commits-filter/-/conventional-commits-filter-1.1.5.tgz#77aac065e3de9c1a74b801e8e25c9affb3184f65"
+  integrity sha512-mj3+WLj8UZE72zO9jocZjx8+W4Bwnx/KHoIz1vb4F8XUXj0XSjp8Y3MFkpRyIpsRiCBX+DkDjxGKF/nfeu7BGw==
   dependencies:
     is-subset "^0.1.1"
     modify-values "^1.0.0"
@@ -1907,6 +2482,7 @@ conventional-commits-filter@^1.1.5:
 conventional-commits-parser@^2.1.5:
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/conventional-commits-parser/-/conventional-commits-parser-2.1.5.tgz#9ac3a4ab221c0c3c9e9dd2c09ae01e6d1e1dabe0"
+  integrity sha512-jaAP61py+ISMF3/n3yIiIuY5h6mJlucOqawu5mLB1HaQADLvg/y5UB3pT7HSucZJan34lp7+7ylQPfbKEGmxrA==
   dependencies:
     JSONStream "^1.0.4"
     is-text-path "^1.0.0"
@@ -1916,37 +2492,52 @@ conventional-commits-parser@^2.1.5:
     through2 "^2.0.0"
     trim-off-newlines "^1.0.0"
 
-convert-source-map@^1.5.0:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
+convert-source-map@^1.1.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.6.0.tgz#51b537a8c43e0f04dec1993bffcdd504e758ac20"
+  integrity sha512-eFu7XigvxdZ1ETfbgPBohgyQ/Z++C0eEhTor0qRwBw9unw+L0/6V8wkSuGgzdThkiS5lSpdptOQPD8Ak40a+7A==
+  dependencies:
+    safe-buffer "~5.1.1"
 
 convert-source-map@~1.1.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.1.3.tgz#4829c877e9fe49b3161f3bf3673888e204699860"
+  integrity sha1-SCnId+n+SbMWHzvzZziI4gRpmGA=
 
 cookie@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
+  integrity sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=
 
 copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
+  integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
-core-js@^2.2.0, core-js@^2.4.0, core-js@^2.5.0:
+core-js@^2.2.0, core-js@^2.4.0:
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
+  integrity sha1-isw4NFgk8W2DZbfJtCWRaOjtYD4=
+
+core-js@^2.5.7:
+  version "2.5.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
+  integrity sha512-RszJCAxg/PP6uzXVXL6BsxSXx/B05oJAQ2vkJRjyjrEcNVycaqOmNb5OTxZPE3xa5gwZduqza6L9JOCenh/Ecw==
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
+  integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
 
 corser@~2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/corser/-/corser-2.0.1.tgz#8eda252ecaab5840dcd975ceb90d9370c819ff87"
+  integrity sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c=
 
 cosmiconfig@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-4.0.0.tgz#760391549580bbd2df1e562bc177b13c290972dc"
+  integrity sha512-6e5vDdrXZD+t5v0L8CrurPeybg4Fmf+FCSYxXKYVAqLUtyCSbuyqE059d0kDthTNRzKVjL7QMgNpEUlsoYH3iQ==
   dependencies:
     is-directory "^0.3.1"
     js-yaml "^3.9.0"
@@ -1956,6 +2547,7 @@ cosmiconfig@^4.0.0:
 crc32-stream@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/crc32-stream/-/crc32-stream-2.0.0.tgz#e3cdd3b4df3168dd74e3de3fbbcb7b297fe908f4"
+  integrity sha1-483TtN8xaN10494/u8t7KX/pCPQ=
   dependencies:
     crc "^3.4.4"
     readable-stream "^2.0.0"
@@ -1963,10 +2555,12 @@ crc32-stream@^2.0.0:
 crc@^3.4.4:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/crc/-/crc-3.5.0.tgz#98b8ba7d489665ba3979f59b21381374101a1964"
+  integrity sha1-mLi6fUiWZbo5efWbITgTdBAaGWQ=
 
 create-ecdh@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.0.tgz#888c723596cdf7612f6498233eebd7a35301737d"
+  integrity sha1-iIxyNZbN92EvZJgjPuvXo1MBc30=
   dependencies:
     bn.js "^4.1.0"
     elliptic "^6.0.0"
@@ -1974,6 +2568,7 @@ create-ecdh@^4.0.0:
 create-hash@^1.1.0, create-hash@^1.1.2:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.1.3.tgz#606042ac8b9262750f483caddab0f5819172d8fd"
+  integrity sha1-YGBCrIuSYnUPSDyt2rD1gZFy2P0=
   dependencies:
     cipher-base "^1.0.1"
     inherits "^2.0.1"
@@ -1983,6 +2578,7 @@ create-hash@^1.1.0, create-hash@^1.1.2:
 create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/create-hmac/-/create-hmac-1.1.6.tgz#acb9e221a4e17bdb076e90657c42b93e3726cf06"
+  integrity sha1-rLniIaThe9sHbpBlfEK5PjcmzwY=
   dependencies:
     cipher-base "^1.0.3"
     create-hash "^1.1.0"
@@ -1994,6 +2590,7 @@ create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
 cross-spawn@^5.0.1, cross-spawn@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  integrity sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=
   dependencies:
     lru-cache "^4.0.1"
     shebang-command "^1.2.0"
@@ -2002,18 +2599,21 @@ cross-spawn@^5.0.1, cross-spawn@^5.1.0:
 cryptiles@2.x.x:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
+  integrity sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=
   dependencies:
     boom "2.x.x"
 
 cryptiles@3.x.x:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-3.1.2.tgz#a89fbb220f5ce25ec56e8c4aa8a4fd7b5b0d29fe"
+  integrity sha1-qJ+7Ig9c4l7FboxKqKT9e1sNKf4=
   dependencies:
     boom "5.x.x"
 
 crypto-browserify@^3.0.0, crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
+  integrity sha512-fz4spIh+znjO2VjL+IdhEpRJ3YN6sMzITSBijk6FK2UvTqruSQW+/cCZTSNsMiZNvUeq0CqurF+dAbyiGOY6Wg==
   dependencies:
     browserify-cipher "^1.0.0"
     browserify-sign "^4.0.0"
@@ -2030,6 +2630,7 @@ crypto-browserify@^3.0.0, crypto-browserify@^3.11.0:
 css@~2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/css/-/css-2.2.1.tgz#73a4c81de85db664d4ee674f7d47085e3b2d55dc"
+  integrity sha1-c6TIHehdtmTU7mdPfUcIXjstVdw=
   dependencies:
     inherits "^2.0.1"
     source-map "^0.1.38"
@@ -2039,26 +2640,31 @@ css@~2.2.1:
 cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.2.tgz#b8036170c79f07a90ff2f16e22284027a243848b"
+  integrity sha1-uANhcMefB6kP8vFuIihAJ6JDhIs=
 
 "cssstyle@>= 0.2.37 < 0.3.0":
   version "0.2.37"
   resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-0.2.37.tgz#541097234cb2513c83ceed3acddc27ff27987d54"
+  integrity sha1-VBCXI0yyUTyDzu06zdwn/yeYfVQ=
   dependencies:
     cssom "0.3.x"
 
 currently-unhandled@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
+  integrity sha1-mI3zP+qxke95mmE2nddsF635V+o=
   dependencies:
     array-find-index "^1.0.1"
 
 custom-event@~1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/custom-event/-/custom-event-1.0.1.tgz#5d02a46850adf1b4a317946a3928fccb5bfd0425"
+  integrity sha1-XQKkaFCt8bSjF5RqOSj8y1v9BCU=
 
 cz-conventional-changelog@1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-1.2.0.tgz#2bca04964c8919b23f3fd6a89ef5e6008b31b3f8"
+  integrity sha1-K8oElkyJGbI/P9aonvXmAIsxs/g=
   dependencies:
     conventional-commit-types "^2.0.0"
     lodash.map "^4.5.1"
@@ -2070,6 +2676,7 @@ cz-conventional-changelog@1.2.0:
 cz-conventional-changelog@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-2.1.0.tgz#2f4bc7390e3244e4df293e6ba351e4c740a7c764"
+  integrity sha1-L0vHOQ4yROTfKT5ro1Hkx0Cnx2Q=
   dependencies:
     conventional-commit-types "^2.0.0"
     lodash.map "^4.5.1"
@@ -2080,40 +2687,48 @@ cz-conventional-changelog@^2.0.0:
 d@1:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
+  integrity sha1-dUu1v+VUUdpppYuU1F9MWwRi1Y8=
   dependencies:
     es5-ext "^0.10.9"
 
 dargs@^4.0.1:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/dargs/-/dargs-4.1.0.tgz#03a9dbb4b5c2f139bf14ae53f0b8a2a6a86f4e17"
+  integrity sha1-A6nbtLXC8Tm/FK5T8LiipqhvThc=
   dependencies:
     number-is-nan "^1.0.0"
 
 dashdash@^1.12.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
+  integrity sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=
   dependencies:
     assert-plus "^1.0.0"
 
 data-uri-to-buffer@1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/data-uri-to-buffer/-/data-uri-to-buffer-1.2.0.tgz#77163ea9c20d8641b4707e8f18abdf9a78f34835"
+  integrity sha512-vKQ9DTQPN1FLYiiEEOQ6IBGFqvjCa5rSK3cWMy/Nespm5d/x3dGFT9UBZnkLxCwua/IXBi2TYnwTEpsOvhC4UQ==
 
 date-fns@^1.27.2:
   version "1.29.0"
   resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.29.0.tgz#12e609cdcb935127311d04d33334e2960a2a54e6"
+  integrity sha512-lbTXWZ6M20cWH8N9S6afb0SBm6tMk+uUg6z3MqHPKE9atmsY3kJkTm8vKe93izJ2B2+q5MV990sM2CHgtAZaOw==
 
 date-format@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/date-format/-/date-format-1.2.0.tgz#615e828e233dd1ab9bb9ae0950e0ceccfa6ecad8"
+  integrity sha1-YV6CjiM90aubua4JUODOzPpuytg=
 
 date-now@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
+  integrity sha1-6vQ5/U1ISK105cx9vvIAZyueNFs=
 
 dateformat@^1.0.6:
   version "1.0.12"
   resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-1.0.12.tgz#9f124b67594c937ff706932e4a642cca8dbbfee9"
+  integrity sha1-nxJLZ1lMk3/3BpMuSmQsyo27/uk=
   dependencies:
     get-stdin "^4.0.1"
     meow "^3.3.0"
@@ -2121,32 +2736,38 @@ dateformat@^1.0.6:
 dateformat@^3.0.0:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-3.0.3.tgz#a6e37499a4d9a9cf85ef5872044d62901c9889ae"
+  integrity sha512-jyCETtSl3VMZMWeRo7iY1FL19ges1t55hMo5yaam4Jrsm5EPL89UQkoQRyiI+Yf4k8r2ZpdngkV8hr1lIdjb3Q==
 
 de-indent@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/de-indent/-/de-indent-1.0.2.tgz#b2038e846dc33baa5796128d0804b455b8c1e21d"
+  integrity sha1-sgOOhG3DO6pXlhKNCAS0VbjB4h0=
 
 debug@2, debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@~2.6.4, debug@~2.6.6:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
   dependencies:
     ms "2.0.0"
 
 debug@2.2.0, debug@~2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
+  integrity sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=
   dependencies:
     ms "0.7.1"
 
 debug@^3.0.1, debug@^3.1.0, debug@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
   dependencies:
     ms "2.0.0"
 
 decamelize-keys@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
+  integrity sha1-0XGoeTMlKAfrPLYdwcFEXQeN8tk=
   dependencies:
     decamelize "^1.1.0"
     map-obj "^1.0.0"
@@ -2154,48 +2775,65 @@ decamelize-keys@^1.0.0:
 decamelize@^1.0.0, decamelize@^1.1.0, decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
+  integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
 
 decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
+  integrity sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=
 
 dedent@0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.6.0.tgz#0e6da8f0ce52838ef5cec5c8f9396b0c1b64a3cb"
+  integrity sha1-Dm2o8M5Sg471zsXI+TlrDBtko8s=
 
 dedent@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
+  integrity sha1-JJXduvbrh0q7Dhvp3yLS5aVEMmw=
 
 deep-eql@0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-0.1.3.tgz#ef558acab8de25206cd713906d74e56930eb69f2"
+  integrity sha1-71WKyrjeJSBs1xOQbXTlaTDrafI=
   dependencies:
     type-detect "0.1.1"
 
 deep-extend@~0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
+  integrity sha1-SLaZwn4zS/ifEIkr5DL25MfTSn8=
 
 deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
+  integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
+
+define-properties@^1.1.2:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
+  integrity sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==
+  dependencies:
+    object-keys "^1.0.12"
 
 define-property@^0.2.5:
   version "0.2.5"
   resolved "https://registry.yarnpkg.com/define-property/-/define-property-0.2.5.tgz#c35b1ef918ec3c990f9a5bc57be04aacec5c8116"
+  integrity sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=
   dependencies:
     is-descriptor "^0.1.0"
 
 define-property@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/define-property/-/define-property-1.0.0.tgz#769ebaaf3f4a63aad3af9e8d304c9bbe79bfb0e6"
+  integrity sha1-dp66rz9KY6rTr56NMEybvnm/sOY=
   dependencies:
     is-descriptor "^1.0.0"
 
 define-property@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/define-property/-/define-property-2.0.2.tgz#d459689e8d654ba77e02a817f8710d702cb16e9d"
+  integrity sha512-jwK2UV4cnPpbcG7+VRARKTZPUWowwXA8bzH5NP6ud0oeAxyYPuGZUAC7hMugpCdz4BeSZl2Dl9k66CHJ/46ZYQ==
   dependencies:
     is-descriptor "^1.0.2"
     isobject "^3.0.1"
@@ -2203,10 +2841,12 @@ define-property@^2.0.2:
 defined@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
+  integrity sha1-yY2bzvdWdBiOEQlpFRGZ45sfppM=
 
 degenerator@~1.0.2:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/degenerator/-/degenerator-1.0.4.tgz#fcf490a37ece266464d9cc431ab98c5819ced095"
+  integrity sha1-/PSQo37OJmRk2cxDGrmMWBnO0JU=
   dependencies:
     ast-types "0.x.x"
     escodegen "1.x.x"
@@ -2215,6 +2855,7 @@ degenerator@~1.0.2:
 del@^2.0.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
+  integrity sha1-wSyYHQZ4RshLyvhiz/kw2Qf/0ag=
   dependencies:
     globby "^5.0.0"
     is-path-cwd "^1.0.0"
@@ -2227,6 +2868,7 @@ del@^2.0.2:
 del@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/del/-/del-3.0.0.tgz#53ecf699ffcbcb39637691ab13baf160819766e5"
+  integrity sha1-U+z2mf/LyzljdpGrE7rxYIGXZuU=
   dependencies:
     globby "^6.1.0"
     is-path-cwd "^1.0.0"
@@ -2238,22 +2880,27 @@ del@^3.0.0:
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
+  integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
+  integrity sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=
 
 depd@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.1.tgz#5783b4e1c459f06fa5ca27f991f3d06e7a310359"
+  integrity sha1-V4O04cRZ8G+lyif5kfPQbnoxA1k=
 
 depd@~1.1.1:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
+  integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
 
 deps-sort@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/deps-sort/-/deps-sort-2.0.0.tgz#091724902e84658260eb910748cccd1af6e21fb5"
+  integrity sha1-CRckkC6EZYJg65EHSMzNGvbiH7U=
   dependencies:
     JSONStream "^1.0.3"
     shasum "^1.0.0"
@@ -2263,6 +2910,7 @@ deps-sort@^2.0.0:
 des.js@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/des.js/-/des.js-1.0.0.tgz#c074d2e2aa6a8a9a07dbd61f9a15c2cd83ec8ecc"
+  integrity sha1-wHTS4qpqipoH29YfmhXCzYPsjsw=
   dependencies:
     inherits "^2.0.1"
     minimalistic-assert "^1.0.0"
@@ -2270,22 +2918,26 @@ des.js@^1.0.0:
 detect-file@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/detect-file/-/detect-file-0.1.0.tgz#4935dedfd9488648e006b0129566e9386711ea63"
+  integrity sha1-STXe39lIhkjgBrASlWbpOGcR6mM=
   dependencies:
     fs-exists-sync "^0.1.0"
 
-detect-indent@4.0.0, detect-indent@^4.0.0:
+detect-indent@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
+  integrity sha1-920GQ1LN9Docts5hnE7jqUdd4gg=
   dependencies:
     repeating "^2.0.0"
 
 detect-libc@^1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
+  integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
 
 detective@^4.0.0:
   version "4.7.1"
   resolved "https://registry.yarnpkg.com/detective/-/detective-4.7.1.tgz#0eca7314338442febb6d65da54c10bb1c82b246e"
+  integrity sha512-H6PmeeUcZloWtdt4DAkFyzFL94arpHr3NOwwmVILFiy+9Qd4JTxxXrzfyGk/lmct2qVGBwTSwSXagqu2BxmWig==
   dependencies:
     acorn "^5.2.1"
     defined "^1.0.0"
@@ -2293,18 +2945,22 @@ detective@^4.0.0:
 di@^0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/di/-/di-0.0.1.tgz#806649326ceaa7caa3306d75d985ea2748ba913c"
+  integrity sha1-gGZJMmzqp8qjMG112YXqJ0i6kTw=
 
 diff@1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-1.4.0.tgz#7f28d2eb9ee7b15a97efd89ce63dcfdaa3ccbabf"
+  integrity sha1-fyjS657nsVqX79ic5j3P2qPMur8=
 
 diff@^3.2.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
+  integrity sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==
 
 diffie-hellman@^5.0.0:
   version "5.0.2"
   resolved "https://registry.yarnpkg.com/diffie-hellman/-/diffie-hellman-5.0.2.tgz#b5835739270cfe26acf632099fded2a07f209e5e"
+  integrity sha1-tYNXOScM/ias9jIJn97SoH8gnl4=
   dependencies:
     bn.js "^4.1.0"
     miller-rabin "^4.0.0"
@@ -2313,12 +2969,14 @@ diffie-hellman@^5.0.0:
 doctrine@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
+  integrity sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==
   dependencies:
     esutils "^2.0.2"
 
 dom-serialize@^2.2.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/dom-serialize/-/dom-serialize-2.2.1.tgz#562ae8999f44be5ea3076f5419dcd59eb43ac95b"
+  integrity sha1-ViromZ9Evl6jB29UGdzVnrQ6yVs=
   dependencies:
     custom-event "~1.0.0"
     ent "~2.2.0"
@@ -2328,6 +2986,7 @@ dom-serialize@^2.2.0:
 dom-serializer@0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
+  integrity sha1-BzxpdUbOB4DOI75KKOKT5AvDDII=
   dependencies:
     domelementtype "~1.1.1"
     entities "~1.1.1"
@@ -2335,34 +2994,41 @@ dom-serializer@0:
 domain-browser@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
+  integrity sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==
 
 domain-browser@~1.1.0:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.1.7.tgz#867aa4b093faa05f1de08c06f4d7b21fdf8698bc"
+  integrity sha1-hnqksJP6oF8d4IwG9NeyH9+GmLw=
 
 domelementtype@1, domelementtype@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
+  integrity sha1-sXrtguirWeUt2cGbF1bg/BhyBMI=
 
 domelementtype@~1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
+  integrity sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs=
 
 domexception@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/domexception/-/domexception-1.0.1.tgz#937442644ca6a31261ef36e3ec677fe805582c90"
+  integrity sha512-raigMkn7CJNNo6Ihro1fzG7wr3fHuYVytzquZKX5n0yizGsTcYgzdIUwj1X9pK0VvjeihV+XiclP+DjwbsSKug==
   dependencies:
     webidl-conversions "^4.0.2"
 
 domhandler@^2.3.0:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.1.tgz#892e47000a99be55bbf3774ffea0561d8879c259"
+  integrity sha1-iS5HAAqZvlW783dP/qBWHYh5wlk=
   dependencies:
     domelementtype "1"
 
 domutils@^1.5.1:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.7.0.tgz#56ea341e834e06e6748af7a1cb25da67ea9f8c2a"
+  integrity sha512-Lgd2XcJ/NjEw+7tFvfKxOzCYKZsdct5lczQ2ZaQY8Djz7pfAD3Gbp8ySJWtreII/vDlMVmxwa6pHmdxIYgttDg==
   dependencies:
     dom-serializer "0"
     domelementtype "1"
@@ -2370,28 +3036,33 @@ domutils@^1.5.1:
 dot-prop@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-3.0.0.tgz#1b708af094a49c9a0e7dbcad790aba539dac1177"
+  integrity sha1-G3CK8JSknJoOfbyteQq6U52sEXc=
   dependencies:
     is-obj "^1.0.0"
 
 double-ended-queue@^2.1.0-0:
   version "2.1.0-0"
   resolved "https://registry.yarnpkg.com/double-ended-queue/-/double-ended-queue-2.1.0-0.tgz#103d3527fd31528f40188130c841efdd78264e5c"
+  integrity sha1-ED01J/0xUo9AGIEwyEHv3XgmTlw=
 
 duplexer2@^0.1.2, duplexer2@~0.1.0, duplexer2@~0.1.2:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/duplexer2/-/duplexer2-0.1.4.tgz#8b12dab878c0d69e3e7891051662a32fc6bddcc1"
+  integrity sha1-ixLauHjA1p4+eJEFFmKjL8a93ME=
   dependencies:
     readable-stream "^2.0.2"
 
 ecc-jsbn@~0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
+  integrity sha1-D8c6ntXw1Tw4GTOYUj735UN3dQU=
   dependencies:
     jsbn "~0.1.0"
 
 ecstatic@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-3.2.0.tgz#1b1aee1ca7c6b99cfb5cf6c9b26b481b90c4409f"
+  integrity sha512-Goilx/2cfU9vvfQjgtNgc2VmJAD8CasQ6rZDqCd2u4Hsyd/qFET6nBf60jiHodevR3nl3IGzNKtrzPXWP88utQ==
   dependencies:
     he "^1.1.1"
     mime "^1.4.1"
@@ -2401,18 +3072,27 @@ ecstatic@^3.0.0:
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
+  integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
 ejs@2.5.7:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.7.tgz#cc872c168880ae3c7189762fd5ffc00896c9518a"
+  integrity sha1-zIcsFoiArjxxiXYv1f/ACJbJUYo=
+
+electron-to-chromium@^1.3.79:
+  version "1.3.79"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.79.tgz#774718f06284a4bf8f578ac67e74508fe659f13a"
+  integrity sha512-LQdY3j4PxuUl6xfxiFruTSlCniTrTrzAd8/HfsLEMi0PUpaQ0Iy+Pr4N4VllDYjs0Hyu2lkTbvzqlG+PX9NsNw==
 
 elegant-spinner@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
+  integrity sha1-2wQ1IcldfjA/2PNFvtwzSc+wcp4=
 
 elliptic@^6.0.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
+  integrity sha1-ysmvh2LIWDYYcAPI3+GT5eLq5d8=
   dependencies:
     bn.js "^4.4.0"
     brorand "^1.0.1"
@@ -2425,20 +3105,24 @@ elliptic@^6.0.0:
 emojis-list@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
+  integrity sha1-TapNnbAPmBmIDHn6RXrlsJof04k=
 
 encodeurl@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+  integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
 
 end-of-stream@^1.0.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.1.tgz#ed29634d19baba463b6ce6b80a37213eab71ec43"
+  integrity sha512-1MkrZNvWTKCaigbn+W15elq2BB/L22nqrSY5DKlo3X6+vclJm8Bb5djXJBmEX6fS3+zCh/F4VBK5Z2KxJt4s2Q==
   dependencies:
     once "^1.4.0"
 
 engine.io-client@~3.1.0:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.1.5.tgz#85de17666560327ef1817978f6e3f8101ded2c47"
+  integrity sha512-Rv9vgb83zrNVhRircUXHi4mtbJhgy2oWtJOCZEbCLFs2HiDSWmh/aOEj8TwoKsn8zXGqTuQuPSoU4v3E10bR6A==
   dependencies:
     component-emitter "1.2.1"
     component-inherit "0.0.3"
@@ -2455,6 +3139,7 @@ engine.io-client@~3.1.0:
 engine.io-parser@~2.1.0, engine.io-parser@~2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.1.2.tgz#4c0f4cff79aaeecbbdcfdea66a823c6085409196"
+  integrity sha512-dInLFzr80RijZ1rGpx1+56/uFoH7/7InhH3kZt+Ms6hT8tNx3NGW/WNSA/f8As1WkOfkuyb3tnRyuXGxusclMw==
   dependencies:
     after "0.8.2"
     arraybuffer.slice "~0.0.7"
@@ -2465,6 +3150,7 @@ engine.io-parser@~2.1.0, engine.io-parser@~2.1.1:
 engine.io@~3.1.0:
   version "3.1.5"
   resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.1.5.tgz#0e7ef9d690eb0b35597f1d4ad02a26ca2dba3845"
+  integrity sha512-D06ivJkYxyRrcEe0bTpNnBQNgP9d3xog+qZlLbui8EsMr/DouQpf5o9FzJnWYHEYE0YsFHllUv2R1dkgYZXHcA==
   dependencies:
     accepts "~1.3.4"
     base64id "1.0.0"
@@ -2478,6 +3164,7 @@ engine.io@~3.1.0:
 enhanced-resolve@^3.4.0:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz#0421e339fd71419b3da13d129b3979040230476e"
+  integrity sha1-BCHjOf1xQZs9oT0Smzl5BAIwR24=
   dependencies:
     graceful-fs "^4.1.2"
     memory-fs "^0.4.0"
@@ -2487,26 +3174,51 @@ enhanced-resolve@^3.4.0:
 ent@~2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/ent/-/ent-2.2.0.tgz#e964219325a21d05f44466a2f686ed6ce5f5dd1d"
+  integrity sha1-6WQhkyWiHQX0RGai9obtbOX13R0=
 
 entities@^1.1.1, entities@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.1.tgz#6e5c2d0a5621b5dadaecef80b90edfb5cd7772f0"
+  integrity sha1-blwtClYhtdra7O+AuQ7ftc13cvA=
 
 errno@^0.1.3:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
+  integrity sha512-MfrRBDWzIWifgq6tJj60gkAwtLNb6sQPlcFrSOflcP1aFmmruKQ2wRnze/8V6kgyz7H3FF8Npzv78mZ7XLLflg==
   dependencies:
     prr "~1.0.1"
 
 error-ex@^1.2.0, error-ex@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
+  integrity sha1-+FWobOYa3E6GIcPNoh56dhLDqNw=
   dependencies:
     is-arrayish "^0.2.1"
 
+es-abstract@^1.5.1:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
+  integrity sha512-C8Fx/0jFmV5IPoMOFPA9P9G5NtqW+4cOPit3MIuvR2t7Ag2K15EJTpxnHAYTzL+aYQJIESYeXZmDBfOBE1HcpA==
+  dependencies:
+    es-to-primitive "^1.1.1"
+    function-bind "^1.1.1"
+    has "^1.0.1"
+    is-callable "^1.1.3"
+    is-regex "^1.0.4"
+
+es-to-primitive@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/es-to-primitive/-/es-to-primitive-1.2.0.tgz#edf72478033456e8dda8ef09e00ad9650707f377"
+  integrity sha512-qZryBOJjV//LaxLTV6UC//WewneB3LcXOL9NP++ozKVXsIIIpm/2c13UDiD9Jp2eThsecw9m3jPqDwTyobcdbg==
+  dependencies:
+    is-callable "^1.1.4"
+    is-date-object "^1.0.1"
+    is-symbol "^1.0.2"
+
 es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
   version "0.10.39"
   resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.39.tgz#fca21b67559277ca4ac1a1ed7048b107b6f76d87"
+  integrity sha512-AlaXZhPHl0po/uxMx1tyrlt1O86M6D5iVaDH8UgLfgek4kXTX6vzsRfJQWC2Ku+aG8pkw1XWzh9eTkwfVrsD5g==
   dependencies:
     es6-iterator "~2.0.3"
     es6-symbol "~3.1.1"
@@ -2514,6 +3226,7 @@ es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
 es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
+  integrity sha1-p96IkUGgWpSwhUQDstCg+/qY87c=
   dependencies:
     d "1"
     es5-ext "^0.10.35"
@@ -2522,6 +3235,7 @@ es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
 es6-map@^0.1.3:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
+  integrity sha1-kTbgUD3MBqMBaQ8LsU/042TpSfA=
   dependencies:
     d "1"
     es5-ext "~0.10.14"
@@ -2533,10 +3247,12 @@ es6-map@^0.1.3:
 es6-promise@^4.0.3, es6-promise@^4.1.0:
   version "4.2.4"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
+  integrity sha512-/NdNZVJg+uZgtm9eS3O6lrOLYmQag2DjdEXuPaHlZ6RuVqgqaVZfgYCepEIKsLqwdQArOPtC3XzRLqGGfT8KQQ==
 
 es6-set@~0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
+  integrity sha1-0rPsXU2ADO2BjbU40ol02wpzzLE=
   dependencies:
     d "1"
     es5-ext "~0.10.14"
@@ -2547,6 +3263,7 @@ es6-set@~0.1.5:
 es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
+  integrity sha1-vwDvT9q2uhtG7Le2KbTH7VcVzHc=
   dependencies:
     d "1"
     es5-ext "~0.10.14"
@@ -2554,6 +3271,7 @@ es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
 es6-weak-map@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
+  integrity sha1-XjqzIlH/0VOKH45f+hNXdy+S2W8=
   dependencies:
     d "1"
     es5-ext "^0.10.14"
@@ -2563,14 +3281,17 @@ es6-weak-map@^2.0.1:
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
+  integrity sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=
 
 escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
+  integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
 
 escodegen@1.8.x:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
+  integrity sha1-WltTr0aTEQvrsIZ6o0MN07cKEBg=
   dependencies:
     esprima "^2.7.1"
     estraverse "^1.9.1"
@@ -2582,6 +3303,7 @@ escodegen@1.8.x:
 escodegen@1.x.x, escodegen@^1.8.1, escodegen@^1.9.0:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.9.1.tgz#dbae17ef96c8e4bedb1356f4504fa4cc2f7cb7e2"
+  integrity sha512-6hTjO1NAWkHnDk3OqQ4YrCuwwmGHL9S3nPlzBOUG/R44rda3wLNrfvQ5fkSGjyhHFKM7ALPKcKGrwvCLe0lC7Q==
   dependencies:
     esprima "^3.1.3"
     estraverse "^4.2.0"
@@ -2593,6 +3315,7 @@ escodegen@1.x.x, escodegen@^1.8.1, escodegen@^1.9.0:
 escope@^3.6.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
+  integrity sha1-4Bl16BJ4GhY6ba392AOY3GTIicM=
   dependencies:
     es6-map "^0.1.3"
     es6-weak-map "^2.0.1"
@@ -2602,6 +3325,7 @@ escope@^3.6.0:
 eslint-loader@^1.7.1:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/eslint-loader/-/eslint-loader-1.9.0.tgz#7e1be9feddca328d3dcfaef1ad49d5beffe83a13"
+  integrity sha512-40aN976qSNPyb9ejTqjEthZITpls1SVKtwguahmH1dzGCwQU/vySE+xX33VZmD8csU0ahVNCtFlsPgKqRBiqgg==
   dependencies:
     loader-fs-cache "^1.0.0"
     loader-utils "^1.0.2"
@@ -2612,28 +3336,33 @@ eslint-loader@^1.7.1:
 eslint-plugin-flowtype@^2.34.0:
   version "2.46.1"
   resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.46.1.tgz#c4f81d580cd89c82bc3a85a1ccf4ae3a915143a4"
+  integrity sha512-GJzxW7QwiIiW0ZA/+nY+N5TuK3es4Uei0D4xuy14dLZBYEFhM6e7c0J1u4+/iwfPqFtkr5a0oSApnSKF4U6KHw==
   dependencies:
     lodash "^4.15.0"
 
 eslint-plugin-html@^4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/eslint-plugin-html/-/eslint-plugin-html-4.0.2.tgz#0e56149e42c2ffc3f0df6261a8bb96b1a9f2280d"
+  integrity sha512-CrQd0F8GWdNWnu4PFrYZl+LjUCXNVy2h0uhDMtnf/7VKc9HRcnkXSrlg0BSGfptZPSzmwnnwCaREAa9+fnQhYw==
   dependencies:
     htmlparser2 "^3.8.2"
 
 eslint-plugin-jasmine@^2.8.4:
   version "2.9.3"
   resolved "https://registry.yarnpkg.com/eslint-plugin-jasmine/-/eslint-plugin-jasmine-2.9.3.tgz#05bf3ab827d791691ceee8c21959b9c0d56a6b0c"
+  integrity sha1-Bb86uCfXkWkc7ujCGVm5wNVqaww=
 
 eslint-plugin-vue-libs@^2.0.1:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-vue-libs/-/eslint-plugin-vue-libs-2.1.0.tgz#e7faf4ae11dad58553f63f907d6642e2d816dcef"
+  integrity sha512-FFiJJ3apqnXkb3+mIgr4juPKWXL/Bo4jORbW8qYpY78+iRzOLBDcOJGyD6z52h2kO5EqMRfzrfo4Q/28CUPuJw==
   dependencies:
     eslint-plugin-html "^4.0.1"
 
 eslint-scope@^3.7.1, eslint-scope@~3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
+  integrity sha1-PWPD7f2gLgbgGkUq2IyqzHzctug=
   dependencies:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
@@ -2641,10 +3370,12 @@ eslint-scope@^3.7.1, eslint-scope@~3.7.1:
 eslint-visitor-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
+  integrity sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==
 
 eslint@^4.13.1:
   version "4.18.2"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.18.2.tgz#0f81267ad1012e7d2051e186a9004cc2267b8d45"
+  integrity sha512-qy4i3wODqKMYfz9LUI8N2qYDkHkoieTbiHpMrYUI/WbjhXJQr7lI4VngixTgaG+yHX+NBCv7nW4hA0ShbvaNKw==
   dependencies:
     ajv "^5.3.0"
     babel-code-frame "^6.22.0"
@@ -2687,6 +3418,7 @@ eslint@^4.13.1:
 espree@^3.5.2:
   version "3.5.4"
   resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
+  integrity sha512-yAcIQxtmMiB/jL32dzEp2enBeidsB7xWPLNiw3IIkpVds1P+h7qF9YwJq1yUNzp2OKXgAprs4F61ih66UsoD1A==
   dependencies:
     acorn "^5.5.0"
     acorn-jsx "^3.0.0"
@@ -2694,54 +3426,71 @@ espree@^3.5.2:
 esprima@2.7.x, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+  integrity sha1-luO3DVd59q1JzQMmc9HDEnZ7pYE=
 
 esprima@3.x.x, esprima@^3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+  integrity sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM=
 
 esprima@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
+  integrity sha512-oftTcaMu/EGrEIu904mWteKIv8vMuOgGYo7EhVJJN00R/EED9DCua/xxHRdYnKtcECzVg7xOWhflvJMnqcFZjw==
 
 esquery@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
+  integrity sha1-z7qLV9f7qT8XKYqKAGoEzaE9gPo=
   dependencies:
     estraverse "^4.0.0"
 
 esrecurse@^4.1.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
+  integrity sha512-64RBB++fIOAXPw3P9cy89qfMlvZEXZkqqJkjqqXIvzP5ezRZjW+lPWjw35UX/3EhUPFYbg5ER4JYgDw4007/DQ==
   dependencies:
     estraverse "^4.1.0"
 
 estraverse@^1.9.1:
   version "1.9.3"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
+  integrity sha1-r2fy3JIlgkFZUJJgkaQAXSnJu0Q=
 
 estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1, estraverse@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
+  integrity sha1-De4/7TH81GlhjOc0IJn8GvoL2xM=
 
 estree-walker@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.2.1.tgz#bdafe8095383d8414d5dc2ecf4c9173b6db9412e"
+  integrity sha1-va/oCVOD2EFNXcLs9MkXO225QS4=
 
 estree-walker@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.3.1.tgz#e6b1a51cf7292524e7237c312e5fe6660c1ce1aa"
+  integrity sha1-5rGlHPcpJSTnI3wxLl/mZgwc4ao=
 
 estree-walker@^0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.5.1.tgz#64fc375053abc6f57d73e9bd2f004644ad3c5854"
+  integrity sha512-7HgCgz1axW7w5aOvgOQkoR1RMBkllygJrssU3BvymKQ95lxXYv6Pon17fBRDm9qhkvXZGijOULoSF9ShOk/ZLg==
+
+estree-walker@^0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.5.2.tgz#d3850be7529c9580d815600b53126515e146dd39"
+  integrity sha512-XpCnW/AE10ws/kDAs37cngSkvgIR8aN3G0MS85m7dUpuK2EREo9VJ00uvw6Dg/hXEpfsE1I1TvJOJr+Z+TL+ig==
 
 esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
+  integrity sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=
 
 event-emitter@~0.3.5:
   version "0.3.5"
   resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
+  integrity sha1-34xp7vFkeSPHFXuc6DhAYQsCzDk=
   dependencies:
     d "1"
     es5-ext "~0.10.14"
@@ -2749,14 +3498,17 @@ event-emitter@~0.3.5:
 eventemitter3@1.x.x:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-1.2.0.tgz#1c86991d816ad1e504750e73874224ecf3bec508"
+  integrity sha1-HIaZHYFq0eUEdQ5zh0Ik7PO+xQg=
 
 events@^1.0.0, events@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
+  integrity sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ=
 
 evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/evp_bytestokey/-/evp_bytestokey-1.0.3.tgz#7fcbdb198dc71959432efe13842684e0525acb02"
+  integrity sha512-/f2Go4TognH/KvCISP7OUsHn85hT9nUkxxA9BEWxFn+Oj9o8ZNLm/40hdlgSLyuOimsrTKLUMEorQexp/aPQeA==
   dependencies:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
@@ -2764,6 +3516,7 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
 execa@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
+  integrity sha1-lEvs00zEHuMqY6n68nrVpl/Fl3c=
   dependencies:
     cross-spawn "^5.0.1"
     get-stream "^3.0.0"
@@ -2776,6 +3529,7 @@ execa@^0.7.0:
 execa@^0.8.0:
   version "0.8.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-0.8.0.tgz#d8d76bbc1b55217ed190fd6dd49d3c774ecfc8da"
+  integrity sha1-2NdrvBtVIX7RkP1t1J08d07PyNo=
   dependencies:
     cross-spawn "^5.0.1"
     get-stream "^3.0.0"
@@ -2788,6 +3542,7 @@ execa@^0.8.0:
 execa@^0.9.0:
   version "0.9.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-0.9.0.tgz#adb7ce62cf985071f60580deb4a88b9e34712d01"
+  integrity sha512-BbUMBiX4hqiHZUA5+JujIjNb6TyAlp2D5KLheMjMluwOuzcnylDL4AxZYLLn1n2AGB49eSWwyKvvEQoRpnAtmA==
   dependencies:
     cross-spawn "^5.0.1"
     get-stream "^3.0.0"
@@ -2800,14 +3555,17 @@ execa@^0.9.0:
 exit-hook@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
+  integrity sha1-8FyiM7SMBdVP/wd2XfhQfpXAL/g=
 
 exit@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
+  integrity sha1-BjJjj42HfMghB9MKD/8aF8uhzQw=
 
 expand-braces@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/expand-braces/-/expand-braces-0.1.2.tgz#488b1d1d2451cb3d3a6b192cfc030f44c5855fea"
+  integrity sha1-SIsdHSRRyz06axks/AMPRMWFX+o=
   dependencies:
     array-slice "^0.2.3"
     array-unique "^0.2.1"
@@ -2816,12 +3574,14 @@ expand-braces@^0.1.1:
 expand-brackets@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
+  integrity sha1-3wcoTjQqgHzXM6xa9yQR5YHRF3s=
   dependencies:
     is-posix-bracket "^0.1.0"
 
 expand-brackets@^2.1.4:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
+  integrity sha1-t3c14xXOMPa27/D4OwQVGiJEliI=
   dependencies:
     debug "^2.3.3"
     define-property "^0.2.5"
@@ -2834,6 +3594,7 @@ expand-brackets@^2.1.4:
 expand-range@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-0.1.1.tgz#4cb8eda0993ca56fa4f41fc42f3cbb4ccadff044"
+  integrity sha1-TLjtoJk8pW+k9B/ELzy7TMrf8EQ=
   dependencies:
     is-number "^0.1.1"
     repeat-string "^0.2.2"
@@ -2841,18 +3602,21 @@ expand-range@^0.1.0:
 expand-range@^1.8.1:
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
+  integrity sha1-opnv/TNf4nIeuujiV+x5ZE/IUzc=
   dependencies:
     fill-range "^2.1.0"
 
 expand-tilde@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-1.2.2.tgz#0b81eba897e5a3d31d1c3d102f8f01441e559449"
+  integrity sha1-C4HrqJflo9MdHD0QL48BRB5VlEk=
   dependencies:
     os-homedir "^1.0.1"
 
 expect@^22.4.0:
   version "22.4.0"
   resolved "https://registry.yarnpkg.com/expect/-/expect-22.4.0.tgz#371edf1ae15b83b5bf5ec34b42f1584660a36c16"
+  integrity sha512-Fiy862jT3qc70hwIHwwCBNISmaqBrfWKKrtqyMJ6iwZr+6KXtcnHojZFtd63TPRvRl8EQTJ+YXYy2lK6/6u+Hw==
   dependencies:
     ansi-styles "^3.2.0"
     jest-diff "^22.4.0"
@@ -2864,12 +3628,14 @@ expect@^22.4.0:
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
+  integrity sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=
   dependencies:
     is-extendable "^0.1.0"
 
 extend-shallow@^3.0.0, extend-shallow@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
+  integrity sha1-Jqcarwc7OfshJxcnRhMcJwQCjbg=
   dependencies:
     assign-symbols "^1.0.0"
     is-extendable "^1.0.1"
@@ -2877,14 +3643,17 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
 extend@3, extend@^3.0.0, extend@~3.0.0, extend@~3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
+  integrity sha1-p1Xqe8Gt/MWjHOfnYtuq3F5jZEQ=
 
 extend@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
+  integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
 
 external-editor@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-1.1.1.tgz#12d7b0db850f7ff7e7081baf4005700060c4600b"
+  integrity sha1-Etew24UPf/fnCBuvQAVwAGDEYAs=
   dependencies:
     extend "^3.0.0"
     spawn-sync "^1.0.15"
@@ -2893,6 +3662,7 @@ external-editor@^1.1.0:
 external-editor@^2.0.4:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.1.0.tgz#3d026a21b7f95b5726387d4200ac160d372c3b48"
+  integrity sha512-E44iT5QVOUJBKij4IIV3uvxuNlbKS38Tw1HiupxEIHPv9qtC2PrDYohbXV5U+1jnfIXttny8gUhj+oZvflFlzA==
   dependencies:
     chardet "^0.4.0"
     iconv-lite "^0.4.17"
@@ -2901,12 +3671,14 @@ external-editor@^2.0.4:
 extglob@^0.3.1:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
+  integrity sha1-Lhj/PS9JqydlzskCPwEdqo2DSaE=
   dependencies:
     is-extglob "^1.0.0"
 
 extglob@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
+  integrity sha512-Nmb6QXkELsuBr24CJSkilo6UHHgbekK5UiZgfE6UHD3Eb27YC6oD+bhcT+tJ6cl8dmsgdQxnWlcry8ksBIBLpw==
   dependencies:
     array-unique "^0.3.2"
     define-property "^1.0.0"
@@ -2920,6 +3692,7 @@ extglob@^2.0.4:
 extract-zip@^1.6.5:
   version "1.6.6"
   resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.6.tgz#1290ede8d20d0872b429fd3f351ca128ec5ef85c"
+  integrity sha1-EpDt6NINCHK0Kf0/NRyhKOxe+Fw=
   dependencies:
     concat-stream "1.6.0"
     debug "2.6.9"
@@ -2929,32 +3702,39 @@ extract-zip@^1.6.5:
 extsprintf@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
+  integrity sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=
 
 extsprintf@^1.2.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
+  integrity sha1-4mifjzVvrWLMplo6kcXfX5VRaS8=
 
 fast-deep-equal@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
+  integrity sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=
 
 fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
+  integrity sha1-1RQsDK7msRifh9OnYREGT4bIu/I=
 
 fast-levenshtein@~2.0.4:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
+  integrity sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=
 
 fd-slicer@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.0.1.tgz#8b5bcbd9ec327c5041bf9ab023fd6750f1177e65"
+  integrity sha1-i1vL2ewyfFBBv5qwI/1nUPEXfmU=
   dependencies:
     pend "~1.2.0"
 
 figures@^1.3.5, figures@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+  integrity sha1-y+Hjr/zxzUS4DK3+0o3Hk6lwHS4=
   dependencies:
     escape-string-regexp "^1.0.5"
     object-assign "^4.1.0"
@@ -2962,12 +3742,14 @@ figures@^1.3.5, figures@^1.7.0:
 figures@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
+  integrity sha1-OrGi0qYsi/tDGgyUy3l6L84nyWI=
   dependencies:
     escape-string-regexp "^1.0.5"
 
 file-entry-cache@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-2.0.0.tgz#c392990c3e684783d838b8c84a45d8a048458361"
+  integrity sha1-w5KZDD5oR4PYOLjISkXYoEhFg2E=
   dependencies:
     flat-cache "^1.2.1"
     object-assign "^4.0.1"
@@ -2975,6 +3757,7 @@ file-entry-cache@^2.0.0:
 file-loader@^1.1.5:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.11.tgz#6fe886449b0f2a936e43cabaac0cdbfb369506f8"
+  integrity sha512-TGR4HU7HUsGg6GCOPJnFk06RhWgEWFLAGWiT6rcD+GRC2keU3s9RGJ+b3Z6/U73jwwNb2gKLJ7YCrp+jvU4ALg==
   dependencies:
     loader-utils "^1.0.2"
     schema-utils "^0.4.5"
@@ -2982,14 +3765,17 @@ file-loader@^1.1.5:
 file-uri-to-path@1:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz#553a7b8446ff6f684359c445f1e37a05dacc33dd"
+  integrity sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==
 
 filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
+  integrity sha1-wcS5vuPglyXdsQa3XB4wH+LxiyY=
 
 fill-range@^2.1.0:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.3.tgz#50b77dfd7e469bc7492470963699fe7a8485a723"
+  integrity sha1-ULd9/X5Gm8dJJHCWNpn+eoSFpyM=
   dependencies:
     is-number "^2.1.0"
     isobject "^2.0.0"
@@ -3000,6 +3786,7 @@ fill-range@^2.1.0:
 fill-range@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-4.0.0.tgz#d544811d428f98eb06a63dc402d2403c328c38f7"
+  integrity sha1-1USBHUKPmOsGpj3EAtJAPDKMOPc=
   dependencies:
     extend-shallow "^2.0.1"
     is-number "^3.0.0"
@@ -3009,6 +3796,7 @@ fill-range@^4.0.0:
 finalhandler@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.0.tgz#ce0b6855b45853e791b2fcc680046d88253dd7f5"
+  integrity sha1-zgtoVbRYU+eRsvzGgARtiCU91/U=
   dependencies:
     debug "2.6.9"
     encodeurl "~1.0.1"
@@ -3021,6 +3809,7 @@ finalhandler@1.1.0:
 find-cache-dir@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-0.1.1.tgz#c8defae57c8a52a8a784f9e31c57c742e993a0b9"
+  integrity sha1-yN765XyKUqinhPnjHFfHQumToLk=
   dependencies:
     commondir "^1.0.1"
     mkdirp "^0.5.1"
@@ -3029,6 +3818,7 @@ find-cache-dir@^0.1.1:
 find-cache-dir@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-1.0.0.tgz#9288e3e9e3cc3748717d39eade17cf71fc30ee6f"
+  integrity sha1-kojj6ePMN0hxfTnq3hfPcfww7m8=
   dependencies:
     commondir "^1.0.1"
     make-dir "^1.0.0"
@@ -3037,6 +3827,7 @@ find-cache-dir@^1.0.0:
 find-node-modules@1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/find-node-modules/-/find-node-modules-1.0.4.tgz#b6deb3cccb699c87037677bcede2c5f5862b2550"
+  integrity sha1-tt6zzMtpnIcDdne87eLF9YYrJVA=
   dependencies:
     findup-sync "0.4.2"
     merge "^1.2.0"
@@ -3044,14 +3835,17 @@ find-node-modules@1.0.4:
 find-parent-dir@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
+  integrity sha1-M8RLQpqysvBkYpnF+fcY83b/jVQ=
 
 find-root@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/find-root/-/find-root-1.0.0.tgz#962ff211aab25c6520feeeb8d6287f8f6e95807a"
+  integrity sha1-li/yEaqyXGUg/u641ih/j26VgHo=
 
 find-up@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
+  integrity sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=
   dependencies:
     path-exists "^2.0.0"
     pinkie-promise "^2.0.0"
@@ -3059,12 +3853,21 @@ find-up@^1.0.0:
 find-up@^2.0.0, find-up@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
+  integrity sha1-RdG35QbHF93UgndaK3eSCjwMV6c=
   dependencies:
     locate-path "^2.0.0"
 
+find-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
+  integrity sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==
+  dependencies:
+    locate-path "^3.0.0"
+
 findup-sync@0.4.2:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/findup-sync/-/findup-sync-0.4.2.tgz#a8117d0f73124f5a4546839579fe52d7129fb5e5"
+  integrity sha1-qBF9D3MST1pFRoOVef5S1xKfteU=
   dependencies:
     detect-file "^0.1.0"
     is-glob "^2.0.1"
@@ -3074,6 +3877,7 @@ findup-sync@0.4.2:
 flat-cache@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
+  integrity sha1-0wMLMrOBVPTjt+nHCfSQ9++XxIE=
   dependencies:
     circular-json "^0.3.1"
     del "^2.0.2"
@@ -3083,10 +3887,12 @@ flat-cache@^1.2.1:
 flow-bin@^0.61.0:
   version "0.61.0"
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.61.0.tgz#d0473a8c35dbbf4de573823f4932124397d32d35"
+  integrity sha512-w6SGi5CDfKLNGzYssRhW6N37qKclDXijsxDQ5M8c3WbivRYta0Horv22bwakegfKBVDnyeS0lRW3OqBC74eq2g==
 
 flow-remove-types-no-whitespace@^1.0.3:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/flow-remove-types-no-whitespace/-/flow-remove-types-no-whitespace-1.0.5.tgz#3d297985a0bed5197b8fb0cbe89ec163f8dea9eb"
+  integrity sha1-PSl5haC+1Rl7j7DL6J7BY/jeqes=
   dependencies:
     babylon "^6.8.4"
     magic-string "^0.16.0"
@@ -3094,26 +3900,31 @@ flow-remove-types-no-whitespace@^1.0.3:
 follow-redirects@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.0.0.tgz#8e34298cbd2e176f254effec75a1c78cc849fd37"
+  integrity sha1-jjQpjL0uF28lTv/sdaHHjMhJ/Tc=
   dependencies:
     debug "^2.2.0"
 
 for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
+  integrity sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=
 
 for-own@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.5.tgz#5265c681a4f294dabbf17c9509b6763aa84510ce"
+  integrity sha1-UmXGgaTylNq78XyVCbZ2OqhFEM4=
   dependencies:
     for-in "^1.0.1"
 
 forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
+  integrity sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=
 
 form-data@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.0.0.tgz#6f0aebadcc5da16c13e1ecc11137d85f9b883b25"
+  integrity sha1-bwrrrcxdoWwT4ezBETfYX5uIOyU=
   dependencies:
     asynckit "^0.4.0"
     combined-stream "^1.0.5"
@@ -3122,6 +3933,7 @@ form-data@~2.0.0:
 form-data@~2.1.1:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.1.4.tgz#33c183acf193276ecaa98143a69e94bfee1750d1"
+  integrity sha1-M8GDrPGTJ27KqYFDpp6Uv+4XUNE=
   dependencies:
     asynckit "^0.4.0"
     combined-stream "^1.0.5"
@@ -3130,6 +3942,7 @@ form-data@~2.1.1:
 form-data@~2.3.1, form-data@~2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.2.tgz#4970498be604c20c005d4f5c23aecd21d6b49099"
+  integrity sha1-SXBJi+YEwgwAXU9cI67NIda0kJk=
   dependencies:
     asynckit "^0.4.0"
     combined-stream "1.0.6"
@@ -3138,22 +3951,26 @@ form-data@~2.3.1, form-data@~2.3.2:
 fragment-cache@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
+  integrity sha1-QpD60n8T6Jvn8zeZxrxaCr//DRk=
   dependencies:
     map-cache "^0.2.2"
 
 fs-access@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/fs-access/-/fs-access-1.0.1.tgz#d6a87f262271cefebec30c553407fb995da8777a"
+  integrity sha1-1qh/JiJxzv6+wwxVNAf7mV2od3o=
   dependencies:
     null-check "^1.0.0"
 
 fs-exists-sync@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
+  integrity sha1-mC1ok6+RjnLQjeyehnP/K1qNat0=
 
 fs-extra@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-1.0.0.tgz#cd3ce5f7e7cb6145883fcae3191e9877f8587950"
+  integrity sha1-zTzl9+fLYUWIP8rjGR6Yd/hYeVA=
   dependencies:
     graceful-fs "^4.1.2"
     jsonfile "^2.1.0"
@@ -3162,10 +3979,12 @@ fs-extra@^1.0.0:
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
+  integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
 fsevents@^1.0.0:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.3.tgz#11f82318f5fe7bb2cd22965a108e9306208216d8"
+  integrity sha512-WIr7iDkdmdbxu/Gh6eKEZJL6KPE74/5MEsf2whTOFNxbIoIixogroLdKYqB6FDav4Wavh/lZdzzd3b2KxIXC5Q==
   dependencies:
     nan "^2.3.0"
     node-pre-gyp "^0.6.39"
@@ -3173,6 +3992,7 @@ fsevents@^1.0.0:
 fstream-ignore@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
+  integrity sha1-nDHa40dnAY/h0kmyTa2mfQktoQU=
   dependencies:
     fstream "^1.0.0"
     inherits "2"
@@ -3181,6 +4001,7 @@ fstream-ignore@^1.0.5:
 fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
+  integrity sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=
   dependencies:
     graceful-fs "^4.1.2"
     inherits "~2.0.0"
@@ -3190,21 +4011,25 @@ fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
 ftp@~0.3.10:
   version "0.3.10"
   resolved "https://registry.yarnpkg.com/ftp/-/ftp-0.3.10.tgz#9197d861ad8142f3e63d5a83bfe4c59f7330885d"
+  integrity sha1-kZfYYa2BQvPmPVqDv+TFn3MwiF0=
   dependencies:
     readable-stream "1.1.x"
     xregexp "2.0.0"
 
-function-bind@^1.0.2:
+function-bind@^1.0.2, function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
+  integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
 
 functional-red-black-tree@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
+  integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
 
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
+  integrity sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=
   dependencies:
     aproba "^1.0.3"
     console-control-strings "^1.0.0"
@@ -3218,24 +4043,29 @@ gauge@~2.7.3:
 generate-function@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
+  integrity sha1-aFj+fAlpt9TpCTM3ZHrHn2DfvnQ=
 
 generate-object-property@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
+  integrity sha1-nA4cQDCM6AT0eDYYuTf6iPmdUNA=
   dependencies:
     is-property "^1.0.0"
 
 get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
+  integrity sha1-9wLmMSfn4jHBYKgMFVSstw1QR+U=
 
 get-own-enumerable-property-symbols@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-2.0.1.tgz#5c4ad87f2834c4b9b4e84549dc1e0650fb38c24b"
+  integrity sha512-TtY/sbOemiMKPRUDDanGCSgBYe7Mf0vbRsWnBZ+9yghpZ1MvcpSpuZFjHdEeY/LZjZy0vdLjS77L6HosisFiug==
 
 get-pkg-repo@^1.0.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/get-pkg-repo/-/get-pkg-repo-1.4.0.tgz#c73b489c06d80cc5536c2c853f9e05232056972d"
+  integrity sha1-xztInAbYDMVTbCyFP54FIyBWly0=
   dependencies:
     hosted-git-info "^2.1.4"
     meow "^3.3.0"
@@ -3246,14 +4076,17 @@ get-pkg-repo@^1.0.0:
 get-stdin@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-4.0.1.tgz#b968c6b0a04384324902e8bf1a5df32579a450fe"
+  integrity sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=
 
 get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
+  integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
 
 get-uri@2:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/get-uri/-/get-uri-2.0.1.tgz#dbdcacacd8c608a38316869368117697a1631c59"
+  integrity sha512-7aelVrYqCLuVjq2kEKRTH8fXPTC0xKTkM+G7UlFkEwCXY3sFbSxvY375JoFowOAYbkaU47SrBvOefUlLZZ+6QA==
   dependencies:
     data-uri-to-buffer "1"
     debug "2"
@@ -3265,16 +4098,19 @@ get-uri@2:
 get-value@^2.0.3, get-value@^2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
+  integrity sha1-3BXKHGcjh8p2vTesCjlbogQqLCg=
 
 getpass@^0.1.1:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/getpass/-/getpass-0.1.7.tgz#5eff8e3e684d569ae4cb2b1282604e8ba62149fa"
+  integrity sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=
   dependencies:
     assert-plus "^1.0.0"
 
 git-raw-commits@^1.3.4:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/git-raw-commits/-/git-raw-commits-1.3.4.tgz#442c3df5985b4f5689e9e43597f5194736aac001"
+  integrity sha512-G3O+41xHbscpgL5nA0DUkbFVgaAz5rd57AMSIMew8p7C8SyFwZDyn08MoXHkTl9zcD0LmxsLFPxbqFY4YPbpPA==
   dependencies:
     dargs "^4.0.1"
     lodash.template "^4.0.2"
@@ -3285,6 +4121,7 @@ git-raw-commits@^1.3.4:
 git-remote-origin-url@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/git-remote-origin-url/-/git-remote-origin-url-2.0.0.tgz#5282659dae2107145a11126112ad3216ec5fa65f"
+  integrity sha1-UoJlna4hBxRaERJhEq0yFuxfpl8=
   dependencies:
     gitconfiglocal "^1.0.0"
     pify "^2.3.0"
@@ -3292,6 +4129,7 @@ git-remote-origin-url@^2.0.0:
 git-semver-tags@^1.3.4:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/git-semver-tags/-/git-semver-tags-1.3.4.tgz#2ceb2a355c6d7514c123c35e297067d08caf3a92"
+  integrity sha512-Xe2Z74MwXZfAezuaO6e6cA4nsgeCiARPzaBp23gma325c/OXdt//PhrknptIaynNeUp2yWtmikV7k5RIicgGIQ==
   dependencies:
     meow "^4.0.0"
     semver "^5.5.0"
@@ -3299,12 +4137,14 @@ git-semver-tags@^1.3.4:
 gitconfiglocal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/gitconfiglocal/-/gitconfiglocal-1.0.0.tgz#41d045f3851a5ea88f03f24ca1c6178114464b9b"
+  integrity sha1-QdBF84UaXqiPA/JMocYXgRRGS5s=
   dependencies:
     ini "^1.3.2"
 
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
+  integrity sha1-27Fk9iIbHAscz4Kuoyi0l98Oo8Q=
   dependencies:
     glob-parent "^2.0.0"
     is-glob "^2.0.0"
@@ -3312,12 +4152,14 @@ glob-base@^0.3.0:
 glob-parent@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-2.0.0.tgz#81383d72db054fcccf5336daa902f182f6edbb28"
+  integrity sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=
   dependencies:
     is-glob "^2.0.0"
 
 glob-parent@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-3.1.0.tgz#9e6af6299d8d3bd2bd40430832bd113df906c5ae"
+  integrity sha1-nmr2KZ2NO9K9QEMIMr0RPfkGxa4=
   dependencies:
     is-glob "^3.1.0"
     path-dirname "^1.0.0"
@@ -3325,6 +4167,7 @@ glob-parent@^3.1.0:
 glob@7.0.5:
   version "7.0.5"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.0.5.tgz#b4202a69099bbb4d292a7c1b95b6682b67ebdc95"
+  integrity sha1-tCAqaQmbu00pKnwblbZoK2fr3JU=
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -3336,6 +4179,7 @@ glob@7.0.5:
 glob@7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
+  integrity sha1-gFIR3wT6rxxjo2ADBs31reULLsg=
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -3347,6 +4191,7 @@ glob@7.1.1:
 glob@^5.0.15:
   version "5.0.15"
   resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
+  integrity sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=
   dependencies:
     inflight "^1.0.4"
     inherits "2"
@@ -3357,6 +4202,7 @@ glob@^5.0.15:
 glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.0, glob@^7.1.1, glob@^7.1.2:
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
+  integrity sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -3368,6 +4214,7 @@ glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.0, glob@^7.1.1, gl
 global-modules@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-0.2.3.tgz#ea5a3bed42c6d6ce995a4f8a1269b5dae223828d"
+  integrity sha1-6lo77ULG1s6ZWk+KEmm12uIjgo0=
   dependencies:
     global-prefix "^0.1.4"
     is-windows "^0.2.0"
@@ -3375,6 +4222,7 @@ global-modules@^0.2.3:
 global-prefix@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/global-prefix/-/global-prefix-0.1.5.tgz#8d3bc6b8da3ca8112a160d8d496ff0462bfef78f"
+  integrity sha1-jTvGuNo8qBEqFg2NSW/wRiv+948=
   dependencies:
     homedir-polyfill "^1.0.0"
     ini "^1.3.4"
@@ -3384,14 +4232,17 @@ global-prefix@^0.1.4:
 globals@^11.0.1, globals@^11.1.0:
   version "11.3.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.3.0.tgz#e04fdb7b9796d8adac9c8f64c14837b2313378b0"
+  integrity sha512-kkpcKNlmQan9Z5ZmgqKH/SMbSmjxQ7QjyNqfXVc8VJcoBV2UEg+sxQD15GQofGRh2hfpwUb70VC31DR7Rq5Hdw==
 
 globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
+  integrity sha512-S0nG3CLEQiY/ILxqtztTWH/3iRRdyBLw6KMDxnKMchrtbj2OFmehVh0WUCfW3DUrIgx/qFrJPICrq4Z4sTR9UQ==
 
 globby@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
+  integrity sha1-69hGZ8oNuzMLmbz8aOrCvFQ3Dg0=
   dependencies:
     array-union "^1.0.1"
     arrify "^1.0.0"
@@ -3403,6 +4254,7 @@ globby@^5.0.0:
 globby@^6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
+  integrity sha1-9abXDoOV4hyFj7BInWTfAkJNUGw=
   dependencies:
     array-union "^1.0.1"
     glob "^7.0.3"
@@ -3413,18 +4265,22 @@ globby@^6.1.0:
 graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
+  integrity sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg=
 
 "graceful-readlink@>= 1.0.0":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
+  integrity sha1-TK+tdrxi8C+gObL5Tpo906ORpyU=
 
 growl@1.9.2:
   version "1.9.2"
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.9.2.tgz#0ea7743715db8d8de2c5ede1775e1b45ac85c02f"
+  integrity sha1-Dqd0NxXbjY3ixe3hd14bRayFwC8=
 
 handlebars@^4.0.1, handlebars@^4.0.2:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
+  integrity sha1-Ywo13+ApS8KB7a5v/F0yn8eYLcw=
   dependencies:
     async "^1.4.0"
     optimist "^0.6.1"
@@ -3435,14 +4291,17 @@ handlebars@^4.0.1, handlebars@^4.0.2:
 har-schema@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
+  integrity sha1-0mMTX0MwfALGAq/I/pWXDAFRNp4=
 
 har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
+  integrity sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI=
 
 har-validator@~2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-2.0.6.tgz#cdcbc08188265ad119b6a5a7c8ab70eecfb5d27d"
+  integrity sha1-zcvAgYgmWtEZtqWnyKtw7s+10n0=
   dependencies:
     chalk "^1.1.1"
     commander "^2.9.0"
@@ -3452,6 +4311,7 @@ har-validator@~2.0.6:
 har-validator@~4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
+  integrity sha1-M0gdDxu/9gDdID11gSpqX7oALio=
   dependencies:
     ajv "^4.9.1"
     har-schema "^1.0.5"
@@ -3459,6 +4319,7 @@ har-validator@~4.2.1:
 har-validator@~5.0.3:
   version "5.0.3"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.0.3.tgz#ba402c266194f15956ef15e0fcf242993f6a7dfd"
+  integrity sha1-ukAsJmGU8VlW7xXg/PJCmT9qff0=
   dependencies:
     ajv "^5.1.0"
     har-schema "^2.0.0"
@@ -3466,6 +4327,7 @@ har-validator@~5.0.3:
 har-validator@~5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.1.0.tgz#44657f5688a22cfd4b72486e81b3a3fb11742c29"
+  integrity sha512-+qnmNjI4OfH2ipQ9VQOw23bBd/ibtfbVdK2fYbY4acTDqKTW/YDp9McimZdDbG8iV9fZizUqQMD5xvriB146TA==
   dependencies:
     ajv "^5.3.0"
     har-schema "^2.0.0"
@@ -3473,38 +4335,51 @@ har-validator@~5.1.0:
 has-ansi@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-2.0.0.tgz#34f5049ce1ecdf2b0649af3ef24e45ed35416d91"
+  integrity sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=
   dependencies:
     ansi-regex "^2.0.0"
 
 has-binary2@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/has-binary2/-/has-binary2-1.0.2.tgz#e83dba49f0b9be4d026d27365350d9f03f54be98"
+  integrity sha1-6D26SfC5vk0CbSc2U1DZ8D9Uvpg=
   dependencies:
     isarray "2.0.1"
 
 has-cors@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
+  integrity sha1-XkdHk/fqmEPRu5nCPu9J/xJv/zk=
 
 has-flag@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
+  integrity sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=
 
 has-flag@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
+  integrity sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=
 
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+  integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
+
+has-symbols@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.0.tgz#ba1a8f1af2a0fc39650f5c850367704122063b44"
+  integrity sha1-uhqPGvKg/DllD1yFA2dwQSIGO0Q=
 
 has-unicode@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
+  integrity sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=
 
 has-value@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/has-value/-/has-value-0.3.1.tgz#7b1f58bada62ca827ec0a2078025654845995e1f"
+  integrity sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=
   dependencies:
     get-value "^2.0.3"
     has-values "^0.1.4"
@@ -3513,6 +4388,7 @@ has-value@^0.3.1:
 has-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-value/-/has-value-1.0.0.tgz#18b281da585b1c5c51def24c930ed29a0be6b177"
+  integrity sha1-GLKB2lhbHFxR3vJMkw7SmgvmsXc=
   dependencies:
     get-value "^2.0.6"
     has-values "^1.0.0"
@@ -3521,10 +4397,12 @@ has-value@^1.0.0:
 has-values@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/has-values/-/has-values-0.1.4.tgz#6d61de95d91dfca9b9a02089ad384bff8f62b771"
+  integrity sha1-bWHeldkd/Km5oCCJrThL/49it3E=
 
 has-values@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-values/-/has-values-1.0.0.tgz#95b0b63fec2146619a6fe57fe75628d5a39efe4f"
+  integrity sha1-lbC2P+whRmGab+V/51Yo1aOe/k8=
   dependencies:
     is-number "^3.0.0"
     kind-of "^4.0.0"
@@ -3532,18 +4410,28 @@ has-values@^1.0.0:
 has@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
+  integrity sha1-hGFzP1OLCDfJNh45qauelwTcLyg=
   dependencies:
     function-bind "^1.0.2"
 
+has@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
+  integrity sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==
+  dependencies:
+    function-bind "^1.1.1"
+
 hash-base@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-2.0.2.tgz#66ea1d856db4e8a5470cadf6fce23ae5244ef2e1"
+  integrity sha1-ZuodhW206KVHDK32/OI65SRO8uE=
   dependencies:
     inherits "^2.0.1"
 
 hash-base@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-3.0.4.tgz#5fc8686847ecd73499403319a6b0a3f3f6ae4918"
+  integrity sha1-X8hoaEfs1zSZQDMZprCj8/auSRg=
   dependencies:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
@@ -3551,10 +4439,12 @@ hash-base@^3.0.0:
 hash-sum@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/hash-sum/-/hash-sum-1.0.2.tgz#33b40777754c6432573c120cc3808bbd10d47f04"
+  integrity sha1-M7QHd3VMZDJXPBIMw4CLvRDUfwQ=
 
 hash.js@^1.0.0, hash.js@^1.0.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.3.tgz#340dedbe6290187151c1ea1d777a3448935df846"
+  integrity sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==
   dependencies:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.0"
@@ -3562,6 +4452,7 @@ hash.js@^1.0.0, hash.js@^1.0.3:
 hasha@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/hasha/-/hasha-2.2.0.tgz#78d7cbfc1e6d66303fe79837365984517b2f6ee1"
+  integrity sha1-eNfL/B5tZjA/55g3NlmEUXsvbuE=
   dependencies:
     is-stream "^1.0.1"
     pinkie-promise "^2.0.0"
@@ -3569,6 +4460,7 @@ hasha@^2.2.0:
 hawk@3.1.3, hawk@~3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
+  integrity sha1-B4REvXwWQLD+VA0sm3PVlnjo4cQ=
   dependencies:
     boom "2.x.x"
     cryptiles "2.x.x"
@@ -3578,6 +4470,7 @@ hawk@3.1.3, hawk@~3.1.3:
 hawk@~6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/hawk/-/hawk-6.0.2.tgz#af4d914eb065f9b5ce4d9d11c1cb2126eecc3038"
+  integrity sha512-miowhl2+U7Qle4vdLqDdPt9m09K6yZhkLDTWGoUiUzrQCn+mHHSmfJgAyGaLRZbPmTqfFFjRV1QWCW0VWUJBbQ==
   dependencies:
     boom "4.x.x"
     cryptiles "3.x.x"
@@ -3587,10 +4480,12 @@ hawk@~6.0.2:
 he@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
+  integrity sha1-k0EP0hsAlzUVH4howvJx80J+I/0=
 
 hipchat-notifier@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/hipchat-notifier/-/hipchat-notifier-1.1.0.tgz#b6d249755437c191082367799d3ba9a0f23b231e"
+  integrity sha1-ttJJdVQ3wZEII2d5nTupoPI7Ix4=
   dependencies:
     lodash "^4.0.0"
     request "^2.0.0"
@@ -3598,6 +4493,7 @@ hipchat-notifier@^1.1.0:
 hmac-drbg@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
+  integrity sha1-0nRXAQJabHdabFRXk+1QL8DGSaE=
   dependencies:
     hash.js "^1.0.3"
     minimalistic-assert "^1.0.0"
@@ -3606,41 +4502,46 @@ hmac-drbg@^1.0.0:
 hoek@2.x.x:
   version "2.16.3"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
+  integrity sha1-ILt0A9POo5jpHcRxCo/xuCdKJe0=
 
 hoek@4.x.x:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-4.2.1.tgz#9634502aa12c445dd5a7c5734b572bb8738aacbb"
+  integrity sha512-QLg82fGkfnJ/4iy1xZ81/9SIJiq1NGFUMGs6ParyjBZr6jW2Ufj/snDqTHixNlHdPNwN2RLVD0Pi3igeK9+JfA==
 
-home-or-tmp@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-2.0.0.tgz#e36c3f2d2cae7d746a857e38d18d5f32a7882db8"
-  dependencies:
-    os-homedir "^1.0.0"
-    os-tmpdir "^1.0.1"
+home-or-tmp@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-3.0.0.tgz#57a8fe24cf33cdd524860a15821ddc25c86671fb"
+  integrity sha1-V6j+JM8zzdUkhgoVgh3cJchmcfs=
 
 homedir-polyfill@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/homedir-polyfill/-/homedir-polyfill-1.0.1.tgz#4c2bbc8a758998feebf5ed68580f76d46768b4bc"
+  integrity sha1-TCu8inWJmP7r9e1oWA921GdotLw=
   dependencies:
     parse-passwd "^1.0.0"
 
 hosted-git-info@^2.1.4:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.5.0.tgz#6d60e34b3abbc8313062c3b798ef8d901a07af3c"
+  integrity sha512-pNgbURSuab90KbTqvRPsseaTxOJCZBD0a7t+haSN33piP9cCM4l0CqdzAif2hUqm716UovKB2ROmiabGAKVXyg==
 
 html-encoding-sniffer@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/html-encoding-sniffer/-/html-encoding-sniffer-1.0.2.tgz#e70d84b94da53aa375e11fe3a351be6642ca46f8"
+  integrity sha512-71lZziiDnsuabfdYiUeWdCVyKuqwWi23L8YeIgV9jSSZHCtb6wB1BKWooH7L3tn4/FuZJMVWyNaIDr4RGmaSYw==
   dependencies:
     whatwg-encoding "^1.0.1"
 
 htmlescape@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/htmlescape/-/htmlescape-1.1.1.tgz#3a03edc2214bca3b66424a3e7959349509cb0351"
+  integrity sha1-OgPtwiFLyjtmQko+eVk0lQnLA1E=
 
 htmlparser2@^3.8.2:
   version "3.9.2"
   resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.9.2.tgz#1bdf87acca0f3f9e53fa4fcceb0f4b4cbb00b338"
+  integrity sha1-G9+HrMoPP55T+k/M6w9LTLsAszg=
   dependencies:
     domelementtype "^1.3.0"
     domhandler "^2.3.0"
@@ -3652,6 +4553,7 @@ htmlparser2@^3.8.2:
 http-errors@1.6.2, http-errors@~1.6.2:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.2.tgz#0a002cc85707192a7e7946ceedc11155f60ec736"
+  integrity sha1-CgAsyFcHGSp+eUbO7cERVfYOxzY=
   dependencies:
     depd "1.1.1"
     inherits "2.0.3"
@@ -3661,6 +4563,7 @@ http-errors@1.6.2, http-errors@~1.6.2:
 http-proxy-agent@1:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/http-proxy-agent/-/http-proxy-agent-1.0.0.tgz#cc1ce38e453bf984a0f7702d2dd59c73d081284a"
+  integrity sha1-zBzjjkU7+YSg93AtLdWcc9CBKEo=
   dependencies:
     agent-base "2"
     debug "2"
@@ -3669,6 +4572,7 @@ http-proxy-agent@1:
 http-proxy@^1.13.0, http-proxy@^1.8.1:
   version "1.16.2"
   resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.16.2.tgz#06dff292952bf64dbe8471fa9df73066d4f37742"
+  integrity sha1-Bt/ykpUr9k2+hHH6nfcwZtTzd0I=
   dependencies:
     eventemitter3 "1.x.x"
     requires-port "1.x.x"
@@ -3676,6 +4580,7 @@ http-proxy@^1.13.0, http-proxy@^1.8.1:
 http-server@^0.11.1:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/http-server/-/http-server-0.11.1.tgz#2302a56a6ffef7f9abea0147d838a5e9b6b6a79b"
+  integrity sha512-6JeGDGoujJLmhjiRGlt8yK8Z9Kl0vnl/dQoQZlc4oeqaUoAKQg94NILLfrY3oWzSyFaQCVNTcKE5PZ3cH8VP9w==
   dependencies:
     colors "1.0.3"
     corser "~2.0.0"
@@ -3689,6 +4594,7 @@ http-server@^0.11.1:
 http-signature@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
+  integrity sha1-33LiZwZs0Kxn+3at+OE0qPvPkb8=
   dependencies:
     assert-plus "^0.2.0"
     jsprim "^1.2.2"
@@ -3697,6 +4603,7 @@ http-signature@~1.1.0:
 http-signature@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.2.0.tgz#9aecd925114772f3d95b65a60abb8f7c18fbace1"
+  integrity sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=
   dependencies:
     assert-plus "^1.0.0"
     jsprim "^1.2.2"
@@ -3705,6 +4612,7 @@ http-signature@~1.2.0:
 httpntlm@1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/httpntlm/-/httpntlm-1.6.1.tgz#ad01527143a2e8773cfae6a96f58656bb52a34b2"
+  integrity sha1-rQFScUOi6Hc8+uapb1hla7UqNLI=
   dependencies:
     httpreq ">=0.4.22"
     underscore "~1.7.0"
@@ -3712,14 +4620,17 @@ httpntlm@1.6.1:
 httpreq@>=0.4.22:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/httpreq/-/httpreq-0.4.24.tgz#4335ffd82cd969668a39465c929ac61d6393627f"
+  integrity sha1-QzX/2CzZaWaKOUZckprGHWOTYn8=
 
 https-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
+  integrity sha1-7AbBDgo0wPL68Zn3/X/Hj//QPHM=
 
 https-proxy-agent@1, https-proxy-agent@^1.0.0, https-proxy-agent@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-1.0.0.tgz#35f7da6c48ce4ddbfa264891ac593ee5ff8671e6"
+  integrity sha1-NffabEjOTdv6JkiRrFk+5f+GceY=
   dependencies:
     agent-base "2"
     debug "2"
@@ -3728,54 +4639,66 @@ https-proxy-agent@1, https-proxy-agent@^1.0.0, https-proxy-agent@~1.0.0:
 iconv-lite@0.4.15:
   version "0.4.15"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.15.tgz#fe265a218ac6a57cfe854927e9d04c19825eddeb"
+  integrity sha1-/iZaIYrGpXz+hUkn6dBMGYJe3es=
 
 iconv-lite@0.4.19, iconv-lite@^0.4.17:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
+  integrity sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==
 
 ieee754@^1.1.4:
   version "1.1.8"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.8.tgz#be33d40ac10ef1926701f6f08a2d86fbfd1ad3e4"
+  integrity sha1-vjPUCsEO8ZJnAfbwii2G+/0a0+Q=
 
 ignore-walk@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.1.tgz#a83e62e7d272ac0e3b551aaa82831a19b69f82f8"
+  integrity sha512-DTVlMx3IYPe0/JJcYP7Gxg7ttZZu3IInhuEhbchuqneY9wWe5Ojy2mXLBaQFUQmo0AW2r3qG7m1mg86js+gnlQ==
   dependencies:
     minimatch "^3.0.4"
 
 ignore@^3.3.3:
   version "3.3.7"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
+  integrity sha512-YGG3ejvBNHRqu0559EOxxNFihD0AjpvHlC/pdGKd3X3ofe+CoJkYazwNJYTNebqpPKN+VVQbh4ZFn1DivMNuHA==
 
 imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
+  integrity sha1-khi5srkoojixPcT7a21XbyMUU+o=
 
 indent-string@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-2.1.0.tgz#8e2d48348742121b4a8218b7a137e9a52049dc80"
+  integrity sha1-ji1INIdCEhtKghi3oTfppSBJ3IA=
   dependencies:
     repeating "^2.0.0"
 
 indent-string@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-3.2.0.tgz#4a5fd6d27cc332f37e5419a504dbb837105c9289"
+  integrity sha1-Sl/W0nzDMvN+VBmlBNu4NxBckok=
 
 indexof@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
+  integrity sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=
 
 inflection@~1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.10.0.tgz#5bffcb1197ad3e81050f8e17e21668087ee9eb2f"
+  integrity sha1-W//LEZetPoEFD44X4hZoCH7p6y8=
 
 inflection@~1.3.0:
   version "1.3.8"
   resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.3.8.tgz#cbd160da9f75b14c3cc63578d4f396784bf3014e"
+  integrity sha1-y9Fg2p91sUw8xjV41POWeEvzAU4=
 
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
+  integrity sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=
   dependencies:
     once "^1.3.0"
     wrappy "1"
@@ -3783,24 +4706,29 @@ inflight@^1.0.4:
 inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+  integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
 inherits@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
+  integrity sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=
 
 ini@^1.3.2, ini@^1.3.4, ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
+  integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
 
 inline-source-map@~0.6.0:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/inline-source-map/-/inline-source-map-0.6.2.tgz#f9393471c18a79d1724f863fa38b586370ade2a5"
+  integrity sha1-+Tk0ccGKedFyT4Y/o4tYY3Ct4qU=
   dependencies:
     source-map "~0.5.3"
 
 inquirer@1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-1.2.3.tgz#4dec6f32f37ef7bb0b2ed3f1d1a5c3f545074918"
+  integrity sha1-TexvMvN+97sLLtPx0aXD9UUHSRg=
   dependencies:
     ansi-escapes "^1.1.0"
     chalk "^1.0.0"
@@ -3820,6 +4748,7 @@ inquirer@1.2.3:
 inquirer@^3.0.6:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
+  integrity sha512-h+xtnyk4EwKvFWHrUYsWErEVR+igKtLdchu+o0Z1RL7VU/jVMFbYir2bp6bAj8efFNxWqHX0dIss6fJQ+/+qeQ==
   dependencies:
     ansi-escapes "^3.0.0"
     chalk "^2.0.0"
@@ -3839,6 +4768,7 @@ inquirer@^3.0.6:
 insert-module-globals@^7.0.0:
   version "7.0.2"
   resolved "https://registry.yarnpkg.com/insert-module-globals/-/insert-module-globals-7.0.2.tgz#012c56baa7d3307a8b417d4ec5270cf9741c18f4"
+  integrity sha512-p3s7g96Nm62MbHRuj9ZXab0DuJNWD7qcmdUXCOQ/ZZn42DtDXfsLill7bq19lDCx3K3StypqUnuE3H2VmIJFUw==
   dependencies:
     JSONStream "^1.0.3"
     combine-source-map "~0.7.1"
@@ -3852,78 +4782,103 @@ insert-module-globals@^7.0.0:
 interpret@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
+  integrity sha1-ftGxQQxqDg94z5XTuEQMY/eLhhQ=
 
 invariant@^2.2.0, invariant@^2.2.2:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.3.tgz#1a827dfde7dcbd7c323f0ca826be8fa7c5e9d688"
+  integrity sha512-7Z5PPegwDTyjbaeCnV0efcyS6vdKAU51kpEmS7QFib3P4822l8ICYyMn7qvJnc+WzLoDsuI9gPMKbJ8pCu8XtA==
   dependencies:
     loose-envify "^1.0.0"
 
 invert-kv@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+  integrity sha1-EEqOSqym09jNFXqO+L+rLXo//bY=
 
 ip@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.0.1.tgz#c7e356cdea225ae71b36d70f2e71a92ba4e42590"
+  integrity sha1-x+NWzeoiWucbNtcPLnGpK6TkJZA=
 
 ip@^1.1.2, ip@^1.1.4:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"
+  integrity sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=
 
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
+  integrity sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=
   dependencies:
     kind-of "^3.0.2"
 
 is-accessor-descriptor@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz#169c2f6d3df1f992618072365c9b0ea1f6878656"
+  integrity sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==
   dependencies:
     kind-of "^6.0.0"
 
 is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
+  integrity sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=
 
 is-binary-path@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-1.0.1.tgz#75f16642b480f187a711c814161fd3a4a7655898"
+  integrity sha1-dfFmQrSA8YenEcgUFh/TpKdlWJg=
   dependencies:
     binary-extensions "^1.0.0"
 
 is-buffer@^1.1.0, is-buffer@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+  integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
 
 is-builtin-module@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
+  integrity sha1-VAVy0096wxGfj3bDDLwbHgN6/74=
   dependencies:
     builtin-modules "^1.0.0"
 
+is-callable@^1.1.3, is-callable@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.4.tgz#1e1adf219e1eeb684d691f9d6a05ff0d30a24d75"
+  integrity sha512-r5p9sxJjYnArLjObpjA4xu5EKI3CuKHkJXMhT7kwbpUyIFD1n5PMAsoPvWnvtZiNz7LjkYDRZhd7FlI0eMijEA==
+
 is-ci@^1.0.10:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.1.0.tgz#247e4162e7860cebbdaf30b774d6b0ac7dcfe7a5"
+  integrity sha512-c7TnwxLePuqIlxHgr7xtxzycJPegNHFuIrBkwbf8hc58//+Op1CqFkyS+xnIMkwn9UsJIwc174BIjkyBmSpjKg==
   dependencies:
     ci-info "^1.0.0"
 
 is-data-descriptor@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
+  integrity sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=
   dependencies:
     kind-of "^3.0.2"
 
 is-data-descriptor@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz#d84876321d0e7add03990406abbbbd36ba9268c7"
+  integrity sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==
   dependencies:
     kind-of "^6.0.0"
 
+is-date-object@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-date-object/-/is-date-object-1.0.1.tgz#9aa20eb6aeebbff77fbd33e74ca01b33581d3a16"
+  integrity sha1-mqIOtq7rv/d/vTPnTKAbM1gdOhY=
+
 is-descriptor@^0.1.0:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-0.1.6.tgz#366d8240dde487ca51823b1ab9f07a10a78251ca"
+  integrity sha512-avDYr0SB3DwO9zsMov0gKCESFYqCnE4hq/4z3TdUlukEy5t9C0YRq7HLrsN52NAcqXKaepeCD0n+B0arnVG3Hg==
   dependencies:
     is-accessor-descriptor "^0.1.6"
     is-data-descriptor "^0.1.4"
@@ -3932,6 +4887,7 @@ is-descriptor@^0.1.0:
 is-descriptor@^1.0.0, is-descriptor@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-1.0.2.tgz#3b159746a66604b04f8c81524ba365c5f14d86ec"
+  integrity sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==
   dependencies:
     is-accessor-descriptor "^1.0.0"
     is-data-descriptor "^1.0.0"
@@ -3940,84 +4896,101 @@ is-descriptor@^1.0.0, is-descriptor@^1.0.2:
 is-directory@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
+  integrity sha1-YTObbyR1/Hcv2cnYP1yFddwVSuE=
 
 is-dotfile@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.3.tgz#a6a2f32ffd2dfb04f5ca25ecd0f6b83cf798a1e1"
+  integrity sha1-pqLzL/0t+wT1yiXs0Pa4PPeYoeE=
 
 is-equal-shallow@^0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/is-equal-shallow/-/is-equal-shallow-0.1.3.tgz#2238098fc221de0bcfa5d9eac4c45d638aa1c534"
+  integrity sha1-IjgJj8Ih3gvPpdnqxMRdY4qhxTQ=
   dependencies:
     is-primitive "^2.0.0"
 
 is-extendable@^0.1.0, is-extendable@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
+  integrity sha1-YrEQ4omkcUGOPsNqYX1HLjAd/Ik=
 
 is-extendable@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-1.0.1.tgz#a7470f9e426733d81bd81e1155264e3a3507cab4"
+  integrity sha512-arnXMxT1hhoKo9k1LZdmlNyJdDDfy2v0fXjFlmok4+i8ul/6WlbVge9bhM74OpNPQPMGUToDtz+KXa1PneJxOA==
   dependencies:
     is-plain-object "^2.0.4"
 
 is-extglob@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
+  integrity sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=
 
 is-extglob@^2.1.0, is-extglob@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
+  integrity sha1-qIwCU1eR8C7TfHahueqXc8gz+MI=
 
 is-finite@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
+  integrity sha1-zGZ3aVYCvlUO8R6LSqYwU0K20Ko=
   dependencies:
     number-is-nan "^1.0.0"
 
 is-fullwidth-code-point@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
+  integrity sha1-754xOG8DGn8NZDr4L95QxFfvAMs=
   dependencies:
     number-is-nan "^1.0.0"
 
 is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
+  integrity sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=
 
 is-generator-fn@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-1.0.0.tgz#969d49e1bb3329f6bb7f09089be26578b2ddd46a"
+  integrity sha1-lp1J4bszKfa7fwkIm+JleLLd1Go=
 
 is-glob@^2.0.0, is-glob@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
+  integrity sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=
   dependencies:
     is-extglob "^1.0.0"
 
 is-glob@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-3.1.0.tgz#7ba5ae24217804ac70707b96922567486cc3e84a"
+  integrity sha1-e6WuJCF4BKxwcHuWkiVnSGzD6Eo=
   dependencies:
     is-extglob "^2.1.0"
 
 is-glob@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.0.tgz#9521c76845cc2610a85203ddf080a958c2ffabc0"
+  integrity sha1-lSHHaEXMJhCoUgPd8ICpWML/q8A=
   dependencies:
     is-extglob "^2.1.1"
 
 is-module@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-module/-/is-module-1.0.0.tgz#3258fb69f78c14d5b815d664336b4cffb6441591"
+  integrity sha1-Mlj7afeMFNW4FdZkM2tM/7ZEFZE=
 
 is-my-ip-valid@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-my-ip-valid/-/is-my-ip-valid-1.0.0.tgz#7b351b8e8edd4d3995d4d066680e664d94696824"
+  integrity sha512-gmh/eWXROncUzRnIa1Ubrt5b8ep/MGSnfAUI3aRp+sqTCs1tv1Isl8d8F6JmkN3dXKc3ehZMrtiPN9eL03NuaQ==
 
 is-my-json-valid@^2.12.4:
   version "2.17.2"
   resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.17.2.tgz#6b2103a288e94ef3de5cf15d29dd85fc4b78d65c"
+  integrity sha512-IBhBslgngMQN8DDSppmgDv7RNrlFotuuDsKcrCP3+HbFaVivIBU7u9oiiErw8sH4ynx3+gOGQ3q2otkgiSi6kg==
   dependencies:
     generate-function "^2.0.0"
     generate-object-property "^1.1.0"
@@ -4028,172 +5001,222 @@ is-my-json-valid@^2.12.4:
 is-number@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-0.1.1.tgz#69a7af116963d47206ec9bd9b48a14216f1e3806"
+  integrity sha1-aaevEWlj1HIG7JvZtIoUIW8eOAY=
 
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
+  integrity sha1-Afy7s5NGOlSPL0ZszhbezknbkI8=
   dependencies:
     kind-of "^3.0.2"
 
 is-number@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
+  integrity sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=
   dependencies:
     kind-of "^3.0.2"
 
 is-number@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-4.0.0.tgz#0026e37f5454d73e356dfe6564699867c6a7f0ff"
+  integrity sha512-rSklcAIlf1OmFdyAqbnWTLVelsQ58uvZ66S/ZyawjWqIviTWCjg2PzVGw8WUA+nNuPTqb4wgA+NszrJ+08LlgQ==
 
 is-obj@^1.0.0, is-obj@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
+  integrity sha1-PkcprB9f3gJc19g6iW2rn09n2w8=
 
 is-observable@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/is-observable/-/is-observable-0.2.0.tgz#b361311d83c6e5d726cabf5e250b0237106f5ae2"
+  integrity sha1-s2ExHYPG5dcmyr9eJQsCNxBvWuI=
   dependencies:
     symbol-observable "^0.2.2"
 
 is-odd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
+  integrity sha512-OTiixgpZAT1M4NHgS5IguFp/Vz2VI3U7Goh4/HA1adtwyLtSBrxYlcSYkhpAE07s4fKEcjrFxyvtQBND4vFQyQ==
   dependencies:
     is-number "^4.0.0"
 
 is-path-cwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
+  integrity sha1-0iXsIxMuie3Tj9p2dHLmLmXxEG0=
 
 is-path-in-cwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-1.0.0.tgz#6477582b8214d602346094567003be8a9eac04dc"
+  integrity sha1-ZHdYK4IU1gI0YJRWcAO+ip6sBNw=
   dependencies:
     is-path-inside "^1.0.0"
 
 is-path-inside@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-path-inside/-/is-path-inside-1.0.1.tgz#8ef5b7de50437a3fdca6b4e865ef7aa55cb48036"
+  integrity sha1-jvW33lBDej/cprToZe96pVy0gDY=
   dependencies:
     path-is-inside "^1.0.1"
 
 is-plain-obj@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
+  integrity sha1-caUMhCnfync8kqOQpKA7OfzVHT4=
 
 is-plain-object@^2.0.1, is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
+  integrity sha512-h5PpgXkWitc38BBMYawTYMWJHFZJVnBquFE57xFpjB8pJFiF6gZ+bU+WyI/yqXiFR5mdLsgYNaPe8uao6Uv9Og==
   dependencies:
     isobject "^3.0.1"
 
 is-posix-bracket@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+  integrity sha1-MzTceXdDaOkvAW5vvAqI9c1ua8Q=
 
 is-primitive@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
+  integrity sha1-IHurkWOEmcB7Kt8kCkGochADRXU=
 
 is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
+  integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
 
 is-property@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
+  integrity sha1-V/4cTkhHTt1lsJkR8msc1Ald2oQ=
+
+is-regex@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.4.tgz#5517489b547091b0930e095654ced25ee97e9491"
+  integrity sha1-VRdIm1RwkbCTDglWVM7SXul+lJE=
+  dependencies:
+    has "^1.0.1"
 
 is-regexp@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-regexp/-/is-regexp-1.0.0.tgz#fd2d883545c46bac5a633e7b9a09e87fa2cb5069"
+  integrity sha1-/S2INUXEa6xaYz57mgnof6LLUGk=
 
 is-resolvable@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
+  integrity sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==
 
 is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+  integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
 
 is-subset@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-subset/-/is-subset-0.1.1.tgz#8a59117d932de1de00f245fcdd39ce43f1e939a6"
+  integrity sha1-ilkRfZMt4d4A8kX83TnOQ/HpOaY=
+
+is-symbol@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.2.tgz#a055f6ae57192caee329e7a860118b497a950f38"
+  integrity sha512-HS8bZ9ox60yCJLH9snBpIwv9pYUAkcuLhSA1oero1UB5y9aiQpRA8y2ex945AOtCZL1lJDeIk3G5LthswI46Lw==
+  dependencies:
+    has-symbols "^1.0.0"
 
 is-text-path@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-text-path/-/is-text-path-1.0.1.tgz#4e1aa0fb51bfbcb3e92688001397202c1775b66e"
+  integrity sha1-Thqg+1G/vLPpJogAE5cgLBd1tm4=
   dependencies:
     text-extensions "^1.0.0"
 
 is-typedarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
+  integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
 
 is-utf8@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
+  integrity sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=
 
 is-windows@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-0.2.0.tgz#de1aa6d63ea29dd248737b69f1ff8b8002d2108c"
+  integrity sha1-3hqm1j6indJIc3tp8f+LgALSEIw=
 
 is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
+  integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
 
 isarray@0.0.1, isarray@~0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
+  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
 
 isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
+  integrity sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=
 
 isarray@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-2.0.1.tgz#a37d94ed9cda2d59865c9f76fe596ee1f338741e"
+  integrity sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=
 
 isbinaryfile@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-3.0.2.tgz#4a3e974ec0cba9004d3fc6cde7209ea69368a621"
+  integrity sha1-Sj6XTsDLqQBNP8bN5yCeppNopiE=
 
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
+  integrity sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=
 
 isobject@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-2.1.0.tgz#f065561096a3f1da2ef46272f815c840d87e0c89"
+  integrity sha1-8GVWEJaj8dou9GJy+BXIQNh+DIk=
   dependencies:
     isarray "1.0.0"
 
 isobject@^3.0.0, isobject@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
+  integrity sha1-TkMekrEalzFjaqH5yNHMvP2reN8=
 
 isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
+  integrity sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=
 
-istanbul-lib-coverage@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.2.tgz#4113c8ff6b7a40a1ef7350b01016331f63afde14"
+istanbul-lib-coverage@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.1.tgz#2aee0e073ad8c5f6a0b00e0dfbf52b4667472eda"
+  integrity sha512-nPvSZsVlbG9aLhZYaC3Oi1gT/tpyo3Yt5fNyf6NmcKIayz4VV/txxJFFKAK/gU4dcNn8ehsanBbVHVl0+amOLA==
 
-istanbul-lib-instrument@^1.7.5:
-  version "1.9.2"
-  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.9.2.tgz#84905bf47f7e0b401d6b840da7bad67086b4aab6"
-  dependencies:
-    babel-generator "^6.18.0"
-    babel-template "^6.16.0"
-    babel-traverse "^6.18.0"
-    babel-types "^6.18.0"
-    babylon "^6.18.0"
-    istanbul-lib-coverage "^1.1.2"
-    semver "^5.3.0"
+istanbul-lib-instrument@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-3.0.0.tgz#b5f066b2a161f75788be17a9d556f40a0cf2afc9"
+  integrity sha512-eQY9vN9elYjdgN9Iv6NS/00bptm02EBBk70lRMaVjeA6QYocQgenVrSgC28TJurdnZa80AGO3ASdFN+w/njGiQ==
+  dependencies:
+    "@babel/generator" "^7.0.0"
+    "@babel/parser" "^7.0.0"
+    "@babel/template" "^7.0.0"
+    "@babel/traverse" "^7.0.0"
+    "@babel/types" "^7.0.0"
+    istanbul-lib-coverage "^2.0.1"
+    semver "^5.5.0"
 
 istanbul@^0.4.0:
   version "0.4.5"
   resolved "https://registry.yarnpkg.com/istanbul/-/istanbul-0.4.5.tgz#65c7d73d4c4da84d4f3ac310b918fb0b8033733b"
+  integrity sha1-ZcfXPUxNqE1POsMQuRj7C4Azczs=
   dependencies:
     abbrev "1.0.x"
     async "1.x"
@@ -4213,10 +5236,12 @@ istanbul@^0.4.0:
 jasmine-core@^2.99.0, jasmine-core@~2.99.0:
   version "2.99.1"
   resolved "https://registry.yarnpkg.com/jasmine-core/-/jasmine-core-2.99.1.tgz#e6400df1e6b56e130b61c4bcd093daa7f6e8ca15"
+  integrity sha1-5kAN8ea1bhMLYcS80JPap/boyhU=
 
 jasmine@^2.99.0:
   version "2.99.0"
   resolved "https://registry.yarnpkg.com/jasmine/-/jasmine-2.99.0.tgz#8ca72d102e639b867c6489856e0e18a9c7aa42b7"
+  integrity sha1-jKctEC5jm4Z8ZImFbg4YqceqQrc=
   dependencies:
     exit "^0.1.2"
     glob "^7.0.6"
@@ -4225,6 +5250,7 @@ jasmine@^2.99.0:
 jest-config@^22.4.2:
   version "22.4.2"
   resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-22.4.2.tgz#580ba5819bf81a5e48f4fd470e8b81834f45c855"
+  integrity sha512-oG31qYO73/3vj/Q8aM2RgzmHndTkz9nRk8ISybfuJqqbf0RW7OUjHVOZPLOUiwLWtz52Yq2HkjIblsyhbA7vrg==
   dependencies:
     chalk "^2.0.1"
     glob "^7.1.1"
@@ -4241,6 +5267,7 @@ jest-config@^22.4.2:
 jest-diff@^22.4.0:
   version "22.4.0"
   resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-22.4.0.tgz#384c2b78519ca44ca126382df53f134289232525"
+  integrity sha512-+/t20WmnkOkB8MOaGaPziI8zWKxquMvYw4Ub+wOzi7AUhmpFXz43buWSxVoZo4J5RnCozpGbX3/FssjJ5KV9Nw==
   dependencies:
     chalk "^2.0.1"
     diff "^3.2.0"
@@ -4250,6 +5277,7 @@ jest-diff@^22.4.0:
 jest-environment-jsdom@^22.4.1:
   version "22.4.1"
   resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-22.4.1.tgz#754f408872441740100d3917e5ec40c74de6447f"
+  integrity sha512-x/JzAoH+dWPBnIMv5OQKiIR0TYf6UvbRjsIuDZ11yDFXkHKGJZg6jNnLAsokAm3cq9kUa2hH5BPUC9XU4n1ELQ==
   dependencies:
     jest-mock "^22.2.0"
     jest-util "^22.4.1"
@@ -4258,6 +5286,7 @@ jest-environment-jsdom@^22.4.1:
 jest-environment-node@^22.4.1:
   version "22.4.1"
   resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-22.4.1.tgz#418850eb654596b8d6e36c2021cbedbc23df8e16"
+  integrity sha512-wj9+zzfRgnUbm5VwFOCGgG1QmbucUyrjPKBKUJdLW8K5Ss5zrNc1k+v6feZhFg6sS3ZGnjgtIyklaxEARxu+LQ==
   dependencies:
     jest-mock "^22.2.0"
     jest-util "^22.4.1"
@@ -4265,10 +5294,12 @@ jest-environment-node@^22.4.1:
 jest-get-type@^22.1.0:
   version "22.1.0"
   resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.1.0.tgz#4e90af298ed6181edc85d2da500dbd2753e0d5a9"
+  integrity sha512-nD97IVOlNP6fjIN5i7j5XRH+hFsHL7VlauBbzRvueaaUe70uohrkz7pL/N8lx/IAwZRTJ//wOdVgh85OgM7g3w==
 
 jest-jasmine2@^22.4.2:
   version "22.4.2"
   resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-22.4.2.tgz#dfd3d259579ed6f52510d8f1ab692808f0d40691"
+  integrity sha512-KZaIHpXQ0AIlvQJFCU0uoXxtz5GG47X14r9upMe7VXE55UazoMZBFnQb9TX2HoYX2/AxJYnjHuvwKVCFqOrEtw==
   dependencies:
     chalk "^2.0.1"
     co "^4.6.0"
@@ -4285,6 +5316,7 @@ jest-jasmine2@^22.4.2:
 jest-matcher-utils@^22.4.0:
   version "22.4.0"
   resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-22.4.0.tgz#d55f5faf2270462736bdf7c7485ee931c9d4b6a1"
+  integrity sha512-03m3issxUXpWMwDYTfmL8hRNewUB0yCRTeXPm+eq058rZxLHD9f5NtSSO98CWHqe4UyISIxd9Ao9iDVjHWd2qg==
   dependencies:
     chalk "^2.0.1"
     jest-get-type "^22.1.0"
@@ -4293,6 +5325,7 @@ jest-matcher-utils@^22.4.0:
 jest-message-util@^22.4.0:
   version "22.4.0"
   resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-22.4.0.tgz#e3d861df16d2fee60cb2bc8feac2188a42579642"
+  integrity sha512-eyCJB0T3hrlpFF2FqQoIB093OulP+1qvATQmD3IOgJgMGqPL6eYw8TbC5P/VCWPqKhGL51xvjIIhow5eZ2wHFw==
   dependencies:
     "@babel/code-frame" "^7.0.0-beta.35"
     chalk "^2.0.1"
@@ -4303,14 +5336,17 @@ jest-message-util@^22.4.0:
 jest-mock@^22.2.0:
   version "22.2.0"
   resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-22.2.0.tgz#444b3f9488a7473adae09bc8a77294afded397a7"
+  integrity sha512-eOfoUYLOB/JlxChOFkh/bzpWGqUXb9I+oOpkprHHs9L7nUNfL8Rk28h1ycWrqzWCEQ/jZBg/xIv7VdQkfAkOhw==
 
 jest-regex-util@^22.1.0:
   version "22.1.0"
   resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-22.1.0.tgz#5daf2fe270074b6da63e5d85f1c9acc866768f53"
+  integrity sha512-on0LqVS6Xeh69sw3d1RukVnur+lVOl3zkmb0Q54FHj9wHoq6dbtWqb3TSlnVUyx36hqjJhjgs/QLqs07Bzu72Q==
 
 jest-resolve@^22.4.2:
   version "22.4.2"
   resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-22.4.2.tgz#25d88aa4147462c9c1c6a1ba16250d3794c24d00"
+  integrity sha512-P1hSfcc2HJYT5t+WPu/11OfFMa7m8pBb2Gf2vm6W9OVs7YTXQ5RCC3nDqaYZQaTqxEM1ZZaTcQGcE6U2xMOsqQ==
   dependencies:
     browser-resolve "^1.11.2"
     chalk "^2.0.1"
@@ -4318,6 +5354,7 @@ jest-resolve@^22.4.2:
 jest-snapshot@^22.4.0:
   version "22.4.0"
   resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-22.4.0.tgz#03d3ce63f8fa7352388afc6a3c8b5ccc3a180ed7"
+  integrity sha512-6Zz4F9G1Nbr93kfm5h3A2+OkE+WGpgJlskYE4iSNN2uYfoTL5b9W6aB9Orpx+ueReHyqmy7HET7Z3EmYlL3hKw==
   dependencies:
     chalk "^2.0.1"
     jest-diff "^22.4.0"
@@ -4329,6 +5366,7 @@ jest-snapshot@^22.4.0:
 jest-util@^22.4.1:
   version "22.4.1"
   resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-22.4.1.tgz#dd17c3bdb067f8e90591563ec0c42bf847dc249f"
+  integrity sha512-9ySBdJY2qVWpg0OvZbGcFXE2NgwccpZVj384E9bx7brKFc7l5anpqah15mseWcz7FLDk7/N+LyYgqFme7Rez2Q==
   dependencies:
     callsites "^2.0.0"
     chalk "^2.0.1"
@@ -4341,6 +5379,7 @@ jest-util@^22.4.1:
 jest-validate@^22.4.0, jest-validate@^22.4.2:
   version "22.4.2"
   resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-22.4.2.tgz#e789a4e056173bf97fe797a2df2d52105c57d4f4"
+  integrity sha512-TLOgc/EULFBjMCAqZp5OdVvjxV16DZpfthd/UyPzM6lRmgWluohNVemAdnL3JvugU1s2Q2npcIqtbOtiPjaZ0A==
   dependencies:
     chalk "^2.0.1"
     jest-config "^22.4.2"
@@ -4348,13 +5387,25 @@ jest-validate@^22.4.0, jest-validate@^22.4.2:
     leven "^2.1.0"
     pretty-format "^22.4.0"
 
+js-levenshtein@^1.1.3:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/js-levenshtein/-/js-levenshtein-1.1.4.tgz#3a56e3cbf589ca0081eb22cd9ba0b1290a16d26e"
+  integrity sha512-PxfGzSs0ztShKrUYPIn5r0MtyAhYcCwmndozzpz8YObbPnD1jFxzlBGbRnX2mIu6Z13xN6+PTu05TQFnZFlzow==
+
 js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
+  integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
+
+js-tokens@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+  integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
 js-yaml@3.x, js-yaml@^3.9.0, js-yaml@^3.9.1:
   version "3.11.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
+  integrity sha512-saJstZWv7oNeOyBh3+Dx1qWzhW0+e6/8eDzo7p5rDFqxntSztloLtuKu+Ejhtq82jsilwOIZYsCz+lIjthg1Hw==
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
@@ -4362,6 +5413,7 @@ js-yaml@3.x, js-yaml@^3.9.0, js-yaml@^3.9.1:
 js-yaml@^3.12.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
+  integrity sha512-PIt2cnwmPfL4hKNwqeiuz4bKfnzHTBv6HyVgjahA6mPLwPDzjDWrplJBMjHUFxku/N3FlmrbyPclad+I+4mJ3A==
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
@@ -4369,10 +5421,12 @@ js-yaml@^3.12.0:
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
+  integrity sha1-peZUwuWi3rXyAdls77yoDA7y9RM=
 
 jsdom@^11.5.1:
   version "11.6.2"
   resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-11.6.2.tgz#25d1ef332d48adf77fc5221fe2619967923f16bb"
+  integrity sha512-pAeZhpbSlUp5yQcS6cBQJwkbzmv4tWFaYxHbFVSxzXefqjvtRA851Z5N2P+TguVG9YeUDcgb8pdeVQRJh0XR3Q==
   dependencies:
     abab "^1.0.4"
     acorn "^5.3.0"
@@ -4401,83 +5455,96 @@ jsdom@^11.5.1:
     ws "^4.0.0"
     xml-name-validator "^3.0.0"
 
-jsesc@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
-
 jsesc@^2.5.1:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.1.tgz#e421a2a8e20d6b0819df28908f782526b96dd1fe"
+  integrity sha1-5CGiqOINawgZ3yiQj3glJrlt0f4=
 
 jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
+  integrity sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=
 
 json-loader@^0.5.4:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/json-loader/-/json-loader-0.5.7.tgz#dca14a70235ff82f0ac9a3abeb60d337a365185d"
+  integrity sha512-QLPs8Dj7lnf3e3QYS1zkCo+4ZwqOiF9d/nZnYozTISxXWCfNs9yuky5rJw4/W34s7POaNlbZmQGaB5NiXCbP4w==
 
 json-parse-better-errors@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.1.tgz#50183cd1b2d25275de069e9e71b467ac9eab973a"
+  integrity sha512-xyQpxeWWMKyJps9CuGJYeng6ssI5bpqS9ltQpdVQ90t4ql6NdnxFKh95JcRt2cun/DjMVNrdjniLPuMA69xmCw==
 
 json-schema-traverse@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
+  integrity sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=
 
 json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
+  integrity sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM=
 
 json-stable-stringify-without-jsonify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
+  integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
 
 json-stable-stringify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
+  integrity sha1-mnWdOcXy/1A/1TAGRu1EX4jE+a8=
   dependencies:
     jsonify "~0.0.0"
 
 json-stable-stringify@~0.0.0:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-0.0.1.tgz#611c23e814db375527df851193db59dd2af27f45"
+  integrity sha1-YRwj6BTbN1Un34URk9tZ3Sryf0U=
   dependencies:
     jsonify "~0.0.0"
 
 json-stringify-safe@5.0.x, json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
+  integrity sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus=
 
 json3@3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
+  integrity sha1-PAQ0dD35Pi9cQq7nsZvLSDV19OE=
 
 json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
+  integrity sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=
 
 jsonfile@^2.1.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
+  integrity sha1-NzaitCi4e72gzIO1P6PWM6NcKug=
   optionalDependencies:
     graceful-fs "^4.1.6"
 
 jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
+  integrity sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM=
 
 jsonparse@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
+  integrity sha1-P02uSpH6wxX3EGL4UhzCOfE2YoA=
 
 jsonpointer@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
+  integrity sha1-T9kss04OnbPInIYi7PUfm5eMbLk=
 
 jsprim@^1.2.2:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
+  integrity sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=
   dependencies:
     assert-plus "1.0.0"
     extsprintf "1.3.0"
@@ -4487,6 +5554,7 @@ jsprim@^1.2.2:
 karma-chrome-launcher@^2.1.1:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/karma-chrome-launcher/-/karma-chrome-launcher-2.2.0.tgz#cf1b9d07136cc18fe239327d24654c3dbc368acf"
+  integrity sha512-uf/ZVpAabDBPvdPdveyk1EPgbnloPvFFGgmRhYLTDH7gEB4nZdSBk8yTU47w1g/drLSx5uMOkjKk7IWKfWg/+w==
   dependencies:
     fs-access "^1.0.0"
     which "^1.2.1"
@@ -4494,6 +5562,7 @@ karma-chrome-launcher@^2.1.1:
 karma-coverage@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/karma-coverage/-/karma-coverage-1.1.1.tgz#5aff8b39cf6994dc22de4c84362c76001b637cf6"
+  integrity sha1-Wv+LOc9plNwi3kyENix2ABtjfPY=
   dependencies:
     dateformat "^1.0.6"
     istanbul "^0.4.0"
@@ -4504,14 +5573,17 @@ karma-coverage@^1.1.1:
 karma-firefox-launcher@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/karma-firefox-launcher/-/karma-firefox-launcher-1.1.0.tgz#2c47030452f04531eb7d13d4fc7669630bb93339"
+  integrity sha512-LbZ5/XlIXLeQ3cqnCbYLn+rOVhuMIK9aZwlP6eOLGzWdo1UVp7t6CN3DP4SafiRLjexKwHeKHDm0c38Mtd3VxA==
 
 karma-jasmine@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/karma-jasmine/-/karma-jasmine-1.1.1.tgz#6fe840e75a11600c9d91e84b33c458e1c46a3529"
+  integrity sha1-b+hA51oRYAydkehLM8RY4cRqNSk=
 
 karma-mocha-reporter@^2.2.3:
   version "2.2.5"
   resolved "https://registry.yarnpkg.com/karma-mocha-reporter/-/karma-mocha-reporter-2.2.5.tgz#15120095e8ed819186e47a0b012f3cd741895560"
+  integrity sha1-FRIAlejtgZGG5HoLAS8810GJVWA=
   dependencies:
     chalk "^2.1.0"
     log-symbols "^2.1.0"
@@ -4520,6 +5592,7 @@ karma-mocha-reporter@^2.2.3:
 karma-phantomjs-launcher@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/karma-phantomjs-launcher/-/karma-phantomjs-launcher-1.0.4.tgz#d23ca34801bda9863ad318e3bb4bd4062b13acd2"
+  integrity sha1-0jyjSAG9qYY60xjju0vUBisTrNI=
   dependencies:
     lodash "^4.0.1"
     phantomjs-prebuilt "^2.1.7"
@@ -4527,10 +5600,12 @@ karma-phantomjs-launcher@^1.0.4:
 karma-safari-launcher@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/karma-safari-launcher/-/karma-safari-launcher-1.0.0.tgz#96982a2cc47d066aae71c553babb28319115a2ce"
+  integrity sha1-lpgqLMR9BmquccVTursoMZEVos4=
 
 karma-sauce-launcher@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/karma-sauce-launcher/-/karma-sauce-launcher-1.2.0.tgz#6f2558ddef3cf56879fa27540c8ae9f8bfd16bca"
+  integrity sha512-lEhtGRGS+3Yw6JSx/vJY9iQyHNtTjcojrSwNzqNUOaDceKDu9dPZqA/kr69bUO9G2T6GKbu8AZgXqy94qo31Jg==
   dependencies:
     q "^1.5.0"
     sauce-connect-launcher "^1.2.2"
@@ -4540,12 +5615,14 @@ karma-sauce-launcher@^1.1.0:
 karma-sourcemap-loader@^0.3.7:
   version "0.3.7"
   resolved "https://registry.yarnpkg.com/karma-sourcemap-loader/-/karma-sourcemap-loader-0.3.7.tgz#91322c77f8f13d46fed062b042e1009d4c4505d8"
+  integrity sha1-kTIsd/jxPUb+0GKwQuEAnUxFBdg=
   dependencies:
     graceful-fs "^4.1.2"
 
 karma-webpack@^2.0.3:
   version "2.0.13"
   resolved "https://registry.yarnpkg.com/karma-webpack/-/karma-webpack-2.0.13.tgz#cf56e3056c15b7747a0bb2140fc9a6be41dd9f02"
+  integrity sha512-2cyII34jfrAabbI2+4Rk4j95Nazl98FvZQhgSiqKUDarT317rxfv/EdzZ60CyATN4PQxJdO5ucR5bOOXkEVrXw==
   dependencies:
     async "^2.0.0"
     babel-runtime "^6.0.0"
@@ -4557,6 +5634,7 @@ karma-webpack@^2.0.3:
 karma@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/karma/-/karma-2.0.0.tgz#a02698dd7f0f05ff5eb66ab8f65582490b512e58"
+  integrity sha512-K9Kjp8CldLyL9ANSUctDyxC7zH3hpqXj/K09qVf06K3T/kXaHtFZ5tQciK7OzQu68FLvI89Na510kqQ2LCbpIw==
   dependencies:
     bluebird "^3.3.0"
     body-parser "^1.16.1"
@@ -4590,36 +5668,43 @@ karma@^2.0.0:
 kew@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/kew/-/kew-0.7.0.tgz#79d93d2d33363d6fdd2970b335d9141ad591d79b"
+  integrity sha1-edk9LTM2PW/dKXCzNdkUGtWR15s=
 
 kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
+  integrity sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=
   dependencies:
     is-buffer "^1.1.5"
 
 kind-of@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-4.0.0.tgz#20813df3d712928b207378691a45066fae72dd57"
+  integrity sha1-IIE989cSkosgc3hpGkUGb65y3Vc=
   dependencies:
     is-buffer "^1.1.5"
 
 kind-of@^5.0.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-5.1.0.tgz#729c91e2d857b7a419a1f9aa65685c4c33f5845d"
+  integrity sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw==
 
 kind-of@^6.0.0, kind-of@^6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
+  integrity sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==
 
 klaw@^1.0.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/klaw/-/klaw-1.3.1.tgz#4088433b46b3b1ba259d78785d8e96f73ba02439"
+  integrity sha1-QIhDO0azsbolnXh4XY6W9zugJDk=
   optionalDependencies:
     graceful-fs "^4.1.9"
 
 labeled-stream-splicer@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/labeled-stream-splicer/-/labeled-stream-splicer-2.0.0.tgz#a52e1d138024c00b86b1c0c91f677918b8ae0a59"
+  integrity sha1-pS4dE4AkwAuGscDJH2d5GLiuClk=
   dependencies:
     inherits "^2.0.1"
     isarray "~0.0.1"
@@ -4628,36 +5713,43 @@ labeled-stream-splicer@^2.0.0:
 lazy-cache@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
+  integrity sha1-odePw6UEdMuAhF07O24dpJpEbo4=
 
 lazy-cache@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-2.0.2.tgz#b9190a4f913354694840859f8a8f7084d8822264"
+  integrity sha1-uRkKT5EzVGlIQIWfio9whNiCImQ=
   dependencies:
     set-getter "^0.1.0"
 
 lazystream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
+  integrity sha1-9plf4PggOS9hOWvolGJAe7dxaOQ=
   dependencies:
     readable-stream "^2.0.5"
 
 lcid@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  integrity sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=
   dependencies:
     invert-kv "^1.0.0"
 
 left-pad@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.2.0.tgz#d30a73c6b8201d8f7d8e7956ba9616087a68e0ee"
+  integrity sha1-0wpzxrggHY99jnlWupYWCHpo4O4=
 
 leven@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
+  integrity sha1-wuep93IJTe6dNCAq6KzORoeHVYA=
 
 levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
+  integrity sha1-OwmSTt+fCDwEkP3UwLxEIeBHZO4=
   dependencies:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
@@ -4665,16 +5757,19 @@ levn@^0.3.0, levn@~0.3.0:
 lexical-scope@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/lexical-scope/-/lexical-scope-1.2.0.tgz#fcea5edc704a4b3a8796cdca419c3a0afaf22df4"
+  integrity sha1-/Ope3HBKSzqHls3KQZw6CvryLfQ=
   dependencies:
     astw "^2.0.0"
 
 libbase64@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/libbase64/-/libbase64-0.1.0.tgz#62351a839563ac5ff5bd26f12f60e9830bb751e6"
+  integrity sha1-YjUag5VjrF/1vSbxL2Dpgwu3UeY=
 
 libmime@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/libmime/-/libmime-3.0.0.tgz#51a1a9e7448ecbd32cda54421675bb21bc093da6"
+  integrity sha1-UaGp50SOy9Ms2lRCFnW7IbwJPaY=
   dependencies:
     iconv-lite "0.4.15"
     libbase64 "0.1.0"
@@ -4683,10 +5778,12 @@ libmime@3.0.0:
 libqp@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/libqp/-/libqp-1.1.0.tgz#f5e6e06ad74b794fb5b5b66988bf728ef1dedbe8"
+  integrity sha1-9ebgatdLeU+1tbZpiL9yjvHe2+g=
 
 lint-staged@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.0.0.tgz#57926c63201e7bd38ca0576d74391efa699b4a9d"
+  integrity sha512-6Z89we28Qy1Ez7ZxO8yYfPKqzdxkSjnURq1d3RS2gKkZrA135xN+ptF3EWHrcHyBMmgA20vA7dGCQGj+OMS22g==
   dependencies:
     app-root-path "^2.0.1"
     chalk "^2.3.1"
@@ -4713,10 +5810,12 @@ lint-staged@^7.0.0:
 listr-silent-renderer@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz#924b5a3757153770bf1a8e3fbf74b8bbf3f9242e"
+  integrity sha1-kktaN1cVN3C/Go4/v3S4u/P5JC4=
 
 listr-update-renderer@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/listr-update-renderer/-/listr-update-renderer-0.4.0.tgz#344d980da2ca2e8b145ba305908f32ae3f4cc8a7"
+  integrity sha1-NE2YDaLKLosUW6MFkI8yrj9MyKc=
   dependencies:
     chalk "^1.1.3"
     cli-truncate "^0.2.1"
@@ -4730,6 +5829,7 @@ listr-update-renderer@^0.4.0:
 listr-verbose-renderer@^0.4.0:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/listr-verbose-renderer/-/listr-verbose-renderer-0.4.1.tgz#8206f4cf6d52ddc5827e5fd14989e0e965933a35"
+  integrity sha1-ggb0z21S3cWCfl/RSYng6WWTOjU=
   dependencies:
     chalk "^1.1.3"
     cli-cursor "^1.0.2"
@@ -4739,6 +5839,7 @@ listr-verbose-renderer@^0.4.0:
 listr@^0.13.0:
   version "0.13.0"
   resolved "https://registry.yarnpkg.com/listr/-/listr-0.13.0.tgz#20bb0ba30bae660ee84cc0503df4be3d5623887d"
+  integrity sha1-ILsLowuuZg7oTMBQPfS+PVYjiH0=
   dependencies:
     chalk "^1.1.3"
     cli-truncate "^0.2.1"
@@ -4761,6 +5862,7 @@ listr@^0.13.0:
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  integrity sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^2.2.0"
@@ -4771,6 +5873,7 @@ load-json-file@^1.0.0:
 load-json-file@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
+  integrity sha1-eUfkIUmvgNaWy/eXvKq8/h/inKg=
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^2.2.0"
@@ -4780,6 +5883,7 @@ load-json-file@^2.0.0:
 load-json-file@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-4.0.0.tgz#2f5f45ab91e33216234fd53adab668eb4ec0993b"
+  integrity sha1-L19Fq5HjMhYjT9U62rZo607AmTs=
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^4.0.0"
@@ -4789,6 +5893,7 @@ load-json-file@^4.0.0:
 loader-fs-cache@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/loader-fs-cache/-/loader-fs-cache-1.0.1.tgz#56e0bf08bd9708b26a765b68509840c8dec9fdbc"
+  integrity sha1-VuC/CL2XCLJqdltoUJhAyN7J/bw=
   dependencies:
     find-cache-dir "^0.1.1"
     mkdirp "0.5.1"
@@ -4796,10 +5901,12 @@ loader-fs-cache@^1.0.0:
 loader-runner@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
+  integrity sha1-9IKuqC1UPgeSFwDVpG7yb9rGuKI=
 
 loader-utils@^1.0.0, loader-utils@^1.0.2, loader-utils@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
+  integrity sha1-yYrvSIvM7aL/teLeZG1qdUQp9c0=
   dependencies:
     big.js "^3.1.3"
     emojis-list "^2.0.0"
@@ -4808,21 +5915,33 @@ loader-utils@^1.0.0, loader-utils@^1.0.2, loader-utils@^1.1.0:
 locate-path@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
+  integrity sha1-K1aLJl7slExtnA3pw9u7ygNUzY4=
   dependencies:
     p-locate "^2.0.0"
     path-exists "^3.0.0"
 
+locate-path@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
+  integrity sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==
+  dependencies:
+    p-locate "^3.0.0"
+    path-exists "^3.0.0"
+
 lodash._arraycopy@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._arraycopy/-/lodash._arraycopy-3.0.0.tgz#76e7b7c1f1fb92547374878a562ed06a3e50f6e1"
+  integrity sha1-due3wfH7klRzdIeKVi7Qaj5Q9uE=
 
 lodash._arrayeach@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._arrayeach/-/lodash._arrayeach-3.0.0.tgz#bab156b2a90d3f1bbd5c653403349e5e5933ef9e"
+  integrity sha1-urFWsqkNPxu9XGU0AzSeXlkz754=
 
 lodash._baseassign@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
+  integrity sha1-jDigmVAPIVrQnlnxci/QxSv+Ck4=
   dependencies:
     lodash._basecopy "^3.0.0"
     lodash.keys "^3.0.0"
@@ -4830,6 +5949,7 @@ lodash._baseassign@^3.0.0:
 lodash._baseclone@^3.0.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/lodash._baseclone/-/lodash._baseclone-3.3.0.tgz#303519bf6393fe7e42f34d8b630ef7794e3542b7"
+  integrity sha1-MDUZv2OT/n5C802LYw73eU41Qrc=
   dependencies:
     lodash._arraycopy "^3.0.0"
     lodash._arrayeach "^3.0.0"
@@ -4841,42 +5961,52 @@ lodash._baseclone@^3.0.0:
 lodash._baseclone@^4.0.0:
   version "4.5.7"
   resolved "https://registry.yarnpkg.com/lodash._baseclone/-/lodash._baseclone-4.5.7.tgz#ce42ade08384ef5d62fa77c30f61a46e686f8434"
+  integrity sha1-zkKt4IOE711i+nfDD2GkbmhvhDQ=
 
 lodash._basecopy@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/lodash._basecopy/-/lodash._basecopy-3.0.1.tgz#8da0e6a876cf344c0ad8a54882111dd3c5c7ca36"
+  integrity sha1-jaDmqHbPNEwK2KVIghEd08XHyjY=
 
 lodash._basecreate@^3.0.0:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/lodash._basecreate/-/lodash._basecreate-3.0.3.tgz#1bc661614daa7fc311b7d03bf16806a0213cf821"
+  integrity sha1-G8ZhYU2qf8MRt9A78WgGoCE8+CE=
 
 lodash._basefor@^3.0.0:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/lodash._basefor/-/lodash._basefor-3.0.3.tgz#7550b4e9218ef09fad24343b612021c79b4c20c2"
+  integrity sha1-dVC06SGO8J+tJDQ7YSAhx5tMIMI=
 
 lodash._bindcallback@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/lodash._bindcallback/-/lodash._bindcallback-3.0.1.tgz#e531c27644cf8b57a99e17ed95b35c748789392e"
+  integrity sha1-5THCdkTPi1epnhftlbNcdIeJOS4=
 
 lodash._getnative@^3.0.0:
   version "3.9.1"
   resolved "https://registry.yarnpkg.com/lodash._getnative/-/lodash._getnative-3.9.1.tgz#570bc7dede46d61cdcde687d65d3eecbaa3aaff5"
+  integrity sha1-VwvH3t5G1hzc3mh9ZdPuy6o6r/U=
 
 lodash._isiterateecall@^3.0.0:
   version "3.0.9"
   resolved "https://registry.yarnpkg.com/lodash._isiterateecall/-/lodash._isiterateecall-3.0.9.tgz#5203ad7ba425fae842460e696db9cf3e6aac057c"
+  integrity sha1-UgOte6Ql+uhCRg5pbbnPPmqsBXw=
 
 lodash._reinterpolate@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
+  integrity sha1-DM8tiRZq8Ds2Y8eWU4t1rG4RTZ0=
 
 lodash._stack@^4.0.0:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/lodash._stack/-/lodash._stack-4.1.3.tgz#751aa76c1b964b047e76d14fc72a093fcb5e2dd0"
+  integrity sha1-dRqnbBuWSwR+dtFPxyoJP8teLdA=
 
 lodash.clone@3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/lodash.clone/-/lodash.clone-3.0.3.tgz#84688c73d32b5a90ca25616963f189252a997043"
+  integrity sha1-hGiMc9MrWpDKJWFpY/GJJSqZcEM=
   dependencies:
     lodash._baseclone "^3.0.0"
     lodash._bindcallback "^3.0.0"
@@ -4885,6 +6015,7 @@ lodash.clone@3.0.3:
 lodash.create@3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/lodash.create/-/lodash.create-3.1.1.tgz#d7f2849f0dbda7e04682bb8cd72ab022461debe7"
+  integrity sha1-1/KEnw29p+BGgruM1yqwIkYd6+c=
   dependencies:
     lodash._baseassign "^3.0.0"
     lodash._basecreate "^3.0.0"
@@ -4893,6 +6024,7 @@ lodash.create@3.1.1:
 lodash.defaultsdeep@4.3.2:
   version "4.3.2"
   resolved "https://registry.yarnpkg.com/lodash.defaultsdeep/-/lodash.defaultsdeep-4.3.2.tgz#6c1a586e6c5647b0e64e2d798141b8836158be8a"
+  integrity sha1-bBpYbmxWR7DmTi15gUG4g2FYvoo=
   dependencies:
     lodash._baseclone "^4.0.0"
     lodash._stack "^4.0.0"
@@ -4904,18 +6036,22 @@ lodash.defaultsdeep@4.3.2:
 lodash.isarguments@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
+  integrity sha1-L1c9hcaiQon/AGY7SRwdM4/zRYo=
 
 lodash.isarray@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/lodash.isarray/-/lodash.isarray-3.0.4.tgz#79e4eb88c36a8122af86f844aa9bcd851b5fbb55"
+  integrity sha1-eeTriMNqgSKvhvhEqpvNhRtfu1U=
 
 lodash.isplainobject@^4.0.0:
   version "4.0.6"
   resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
+  integrity sha1-fFJqUtibRcRcxpC4gWO+BJf1UMs=
 
 lodash.keys@^3.0.0:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-3.1.2.tgz#4dbc0472b156be50a0b286855d1bd0b0c656098a"
+  integrity sha1-TbwEcrFWvlCgsoaFXRvQsMZWCYo=
   dependencies:
     lodash._getnative "^3.0.0"
     lodash.isarguments "^3.0.0"
@@ -4924,30 +6060,37 @@ lodash.keys@^3.0.0:
 lodash.keysin@^4.0.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/lodash.keysin/-/lodash.keysin-4.2.0.tgz#8cc3fb35c2d94acc443a1863e02fa40799ea6f28"
+  integrity sha1-jMP7NcLZSsxEOhhj4C+kB5nqbyg=
 
 lodash.map@^4.5.1:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/lodash.map/-/lodash.map-4.6.0.tgz#771ec7839e3473d9c4cde28b19394c3562f4f6d3"
+  integrity sha1-dx7Hg540c9nEzeKLGTlMNWL09tM=
 
 lodash.memoize@~3.0.3:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-3.0.4.tgz#2dcbd2c287cbc0a55cc42328bd0c736150d53e3f"
+  integrity sha1-LcvSwofLwKVcxCMovQxzYVDVPj8=
 
 lodash.mergewith@^4.0.0:
   version "4.6.1"
   resolved "https://registry.yarnpkg.com/lodash.mergewith/-/lodash.mergewith-4.6.1.tgz#639057e726c3afbdb3e7d42741caa8d6e4335927"
+  integrity sha512-eWw5r+PYICtEBgrBE5hhlT6aAa75f411bgDz/ZL2KZqYV03USvucsxcHUIlGTDTECs1eunpI7HOV7U+WLDvNdQ==
 
 lodash.rest@^4.0.0:
   version "4.0.5"
   resolved "https://registry.yarnpkg.com/lodash.rest/-/lodash.rest-4.0.5.tgz#954ef75049262038c96d1fc98b28fdaf9f0772aa"
+  integrity sha1-lU73UEkmIDjJbR/Jiyj9r58Hcqo=
 
 lodash.sortby@^4.7.0:
   version "4.7.0"
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
+  integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
 lodash.template@^4.0.2, lodash.template@^4.4.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.4.0.tgz#e73a0385c8355591746e020b99679c690e68fba0"
+  integrity sha1-5zoDhcg1VZF0bgILmWecaQ5o+6A=
   dependencies:
     lodash._reinterpolate "~3.0.0"
     lodash.templatesettings "^4.0.0"
@@ -4955,44 +6098,58 @@ lodash.template@^4.0.2, lodash.template@^4.4.0:
 lodash.templatesettings@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/lodash.templatesettings/-/lodash.templatesettings-4.1.0.tgz#2b4d4e95ba440d915ff08bc899e4553666713316"
+  integrity sha1-K01OlbpEDZFf8IvImeRVNmZxMxY=
   dependencies:
     lodash._reinterpolate "~3.0.0"
 
 lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
+  integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
 lodash@4.16.2:
   version "4.16.2"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.16.2.tgz#3e626db827048a699281a8a125226326cfc0e652"
+  integrity sha1-PmJtuCcEimmSgaihJSJjJs/A5lI=
 
 lodash@4.17.2:
   version "4.17.2"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.2.tgz#34a3055babe04ce42467b607d700072c7ff6bf42"
+  integrity sha1-NKMFW6vgTOQkZ7YH1wAHLH/2v0I=
 
 lodash@^3.8.0:
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
+  integrity sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=
 
 lodash@^4.0.0, lodash@^4.0.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.6, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
+  integrity sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw==
+
+lodash@^4.17.10:
+  version "4.17.11"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
+  integrity sha1-N2/3tY6jCGoPCfrMdGF+ylAeGhg=
   dependencies:
     chalk "^1.0.0"
 
 log-symbols@^2.1.0, log-symbols@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
+  integrity sha512-VeIAFslyIerEJLXHziedo2basKbMKtTw3vfn5IzG0XTjhAVEJyNHnL2p7vc+wBDSdQuUpNw3M2u6xb9QsAY5Eg==
   dependencies:
     chalk "^2.0.1"
 
 log-update@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-update/-/log-update-1.0.2.tgz#19929f64c4093d2d2e7075a1dad8af59c296b8d1"
+  integrity sha1-GZKfZMQJPS0ucHWh2tivWcKWuNE=
   dependencies:
     ansi-escapes "^1.0.0"
     cli-cursor "^1.0.2"
@@ -5000,6 +6157,7 @@ log-update@^1.0.2:
 log4js@^2.3.9:
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/log4js/-/log4js-2.5.3.tgz#38bb7bde5e9c1c181bd75e8bc128c5cd0409caf1"
+  integrity sha512-YL/qpTxYtK0iWWbuKCrevDZz5lh+OjyHHD+mICqpjnYGKdNRBvPeh/1uYjkKUemT1CSO4wwLOwphWMpKAnD9kw==
   dependencies:
     circular-json "^0.5.1"
     date-format "^1.2.0"
@@ -5019,6 +6177,7 @@ log4js@^2.3.9:
 loggly@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/loggly/-/loggly-1.1.1.tgz#0a0fc1d3fa3a5ec44fdc7b897beba2a4695cebee"
+  integrity sha1-Cg/B0/o6XsRP3HuJe+uipGlc6+4=
   dependencies:
     json-stringify-safe "5.0.x"
     request "2.75.x"
@@ -5027,16 +6186,19 @@ loggly@^1.1.0:
 longest@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
+  integrity sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=
 
 loose-envify@^1.0.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
+  integrity sha1-0aitM/qc4OcT1l/dCsi3SNR4yEg=
   dependencies:
     js-tokens "^3.0.0"
 
 loud-rejection@^1.0.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
+  integrity sha1-W0b4AUft7leIcPCG0Eghz5mOVR8=
   dependencies:
     currently-unhandled "^0.4.1"
     signal-exit "^3.0.0"
@@ -5044,6 +6206,7 @@ loud-rejection@^1.0.0:
 lru-cache@4.1.x, lru-cache@^4.0.1, lru-cache@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.1.tgz#622e32e82488b49279114a4f9ecf45e7cd6bba55"
+  integrity sha512-q4spe4KTfsAS1SUHLO0wz8Qiyf1+vMIAgpRYioFYDMNqKfHQbg+AVDH3i4fvpl71/P1L0dBl+fQi+P37UYf0ew==
   dependencies:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
@@ -5051,22 +6214,26 @@ lru-cache@4.1.x, lru-cache@^4.0.1, lru-cache@^4.1.1:
 lru-cache@~2.6.5:
   version "2.6.5"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.6.5.tgz#e56d6354148ede8d7707b58d143220fd08df0fd5"
+  integrity sha1-5W1jVBSO3o13B7WNFDIg/QjfD9U=
 
 magic-string@^0.16.0:
   version "0.16.0"
   resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.16.0.tgz#970ebb0da7193301285fb1aa650f39bdd81eb45a"
+  integrity sha1-lw67DacZMwEoX7GqZQ85vdgetFo=
   dependencies:
     vlq "^0.2.1"
 
 magic-string@^0.22.4:
   version "0.22.4"
   resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.22.4.tgz#31039b4e40366395618c1d6cf8193c53917475ff"
+  integrity sha512-kxBL06p6iO2qPBHsqGK2b3cRwiRGpnmSuVWNhwHcMX7qJOUr1HvricYP1LZOCdkQBUp0jiWg2d6WJwR3vYgByw==
   dependencies:
     vlq "^0.2.1"
 
 mailcomposer@4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/mailcomposer/-/mailcomposer-4.0.1.tgz#0e1c44b2a07cf740ee17dc149ba009f19cadfeb4"
+  integrity sha1-DhxEsqB890DuF9wUm6AJ8Zyt/rQ=
   dependencies:
     buildmail "4.0.1"
     libmime "3.0.0"
@@ -5074,6 +6241,7 @@ mailcomposer@4.0.1:
 mailgun-js@^0.7.0:
   version "0.7.15"
   resolved "https://registry.yarnpkg.com/mailgun-js/-/mailgun-js-0.7.15.tgz#ee366a20dac64c3c15c03d6c1b3e0ed795252abb"
+  integrity sha1-7jZqINrGTDwVwD1sGz4O15UlKrs=
   dependencies:
     async "~2.1.2"
     debug "~2.2.0"
@@ -5088,30 +6256,36 @@ mailgun-js@^0.7.0:
 make-dir@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.2.0.tgz#6d6a49eead4aae296c53bbf3a1a008bd6c89469b"
+  integrity sha512-aNUAa4UMg/UougV25bbrU4ZaaKNjJ/3/xnvg/twpmKROPdKZPZ9wGgI0opdZzO8q/zUFawoUuixuOv33eZ61Iw==
   dependencies:
     pify "^3.0.0"
 
 map-cache@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
+  integrity sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8=
 
 map-obj@^1.0.0, map-obj@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-1.0.1.tgz#d933ceb9205d82bdcf4886f6742bdc2b4dea146d"
+  integrity sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=
 
 map-obj@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-2.0.0.tgz#a65cd29087a92598b8791257a523e021222ac1f9"
+  integrity sha1-plzSkIepJZi4eRJXpSPgISIqwfk=
 
 map-visit@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/map-visit/-/map-visit-1.0.0.tgz#ecdca8f13144e660f1b5bd41f12f3479d98dfb8f"
+  integrity sha1-7Nyo8TFE5mDxtb1B8S80edmN+48=
   dependencies:
     object-visit "^1.0.0"
 
 md5.js@^1.3.4:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.4.tgz#e9bdbde94a20a5ac18b04340fc5764d5b09d901d"
+  integrity sha1-6b296UogpawYsENA/Fdk1bCdkB0=
   dependencies:
     hash-base "^3.0.0"
     inherits "^2.0.1"
@@ -5119,16 +6293,19 @@ md5.js@^1.3.4:
 media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
+  integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
 mem@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
+  integrity sha1-Xt1StIXKHZAP5kiVUFOZoN+kX3Y=
   dependencies:
     mimic-fn "^1.0.0"
 
 memory-fs@^0.4.0, memory-fs@~0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
+  integrity sha1-OpoguEYlI+RHz7x+i7gO1me/xVI=
   dependencies:
     errno "^0.1.3"
     readable-stream "^2.0.1"
@@ -5136,6 +6313,7 @@ memory-fs@^0.4.0, memory-fs@~0.4.1:
 meow@^3.3.0:
   version "3.7.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
+  integrity sha1-cstmi0JSKCkKu/qFaJJYcwioAfs=
   dependencies:
     camelcase-keys "^2.0.0"
     decamelize "^1.1.2"
@@ -5151,6 +6329,7 @@ meow@^3.3.0:
 meow@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/meow/-/meow-4.0.0.tgz#fd5855dd008db5b92c552082db1c307cba20b29d"
+  integrity sha512-Me/kel335m6vMKmEmA6c87Z6DUFW3JqkINRnxkbC+A/PUm0D5Fl2dEBQrPKnqCL9Te/CIa1MUt/0InMJhuC/sw==
   dependencies:
     camelcase-keys "^4.0.0"
     decamelize-keys "^1.0.0"
@@ -5165,10 +6344,12 @@ meow@^4.0.0:
 merge@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
+  integrity sha1-dTHjnUlJwoGma4xabgJl6LBYlNo=
 
 micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
   version "2.3.11"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
+  integrity sha1-hmd8l9FyCzY0MdBNDRUpO9OMFWU=
   dependencies:
     arr-diff "^2.0.0"
     array-unique "^0.2.1"
@@ -5187,6 +6368,7 @@ micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
 micromatch@^3.1.4, micromatch@^3.1.8:
   version "3.1.9"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.9.tgz#15dc93175ae39e52e93087847096effc73efcf89"
+  integrity sha512-SlIz6sv5UPaAVVFRKodKjCg48EbNoIhgetzfK/Cy0v5U52Z6zB136M8tp0UC9jM53LYbmIRihJszvvqpKkfm9g==
   dependencies:
     arr-diff "^4.0.0"
     array-unique "^0.3.2"
@@ -5205,6 +6387,7 @@ micromatch@^3.1.4, micromatch@^3.1.8:
 miller-rabin@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/miller-rabin/-/miller-rabin-4.0.1.tgz#f080351c865b0dc562a8462966daa53543c78a4d"
+  integrity sha512-115fLhvZVqWwHPbClyntxEVfVDfl9DLLTuJvq3g2O/Oxi8AiNouAHvDSzHS0viUJc+V5vm3eq91Xwqn9dp4jRA==
   dependencies:
     bn.js "^4.0.0"
     brorand "^1.0.1"
@@ -5212,54 +6395,65 @@ miller-rabin@^4.0.0:
 mime-db@~1.33.0:
   version "1.33.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
+  integrity sha512-BHJ/EKruNIqJf/QahvxwQZXKygOQ256myeN/Ew+THcAa5q+PjyTTMMeNQC4DZw5AwfvelsUrA6B67NKMqXDbzQ==
 
 mime-db@~1.36.0:
   version "1.36.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.36.0.tgz#5020478db3c7fe93aad7bbcc4dcf869c43363397"
+  integrity sha512-L+xvyD9MkoYMXb1jAmzI/lWYAxAMCPvIBSWur0PZ5nOf5euahRLVqH//FKW9mWp2lkqUgYiXPgkzfMUFi4zVDw==
 
 mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.7:
   version "2.1.18"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
+  integrity sha512-lc/aahn+t4/SWV/qcmumYjymLsWfN3ELhpmVuUFjgsORruuZPVSwAQryq+HHGvO/SI2KVX26bx+En+zhM8g8hQ==
   dependencies:
     mime-db "~1.33.0"
 
 mime-types@~2.1.19:
   version "2.1.20"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.20.tgz#930cb719d571e903738520f8470911548ca2cc19"
+  integrity sha512-HrkrPaP9vGuWbLK1B1FfgAkbqNjIuy4eHlIYnFi7kamZyLLrGlo2mpcx0bBmNpKqBtYtAfGbodDddIgddSJC2A==
   dependencies:
     mime-db "~1.36.0"
 
 mime@^1.3.4, mime@^1.4.1, mime@^1.5.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+  integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
 
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
+  integrity sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==
 
 minimalistic-assert@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.0.tgz#702be2dda6b37f4836bcb3f5db56641b64a1d3d3"
+  integrity sha1-cCvi3aazf0g2vLP121ZkG2Sh09M=
 
 minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
+  integrity sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo=
 
 "minimatch@2 || 3", minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  integrity sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==
   dependencies:
     brace-expansion "^1.1.7"
 
 minimatch@3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.3.tgz#2a4e4090b96b2db06a9d7df01055a62a77c9b774"
+  integrity sha1-Kk5AkLlrLbBqnX3wEFWmKnfJt3Q=
   dependencies:
     brace-expansion "^1.0.0"
 
 minimist-options@^3.0.1:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/minimist-options/-/minimist-options-3.0.2.tgz#fba4c8191339e13ecf4d61beb03f070103f3d954"
+  integrity sha512-FyBrT/d0d4+uiZRbqznPXqw3IpZZG3gl3wKWiX784FycUKVwBt0uLBFkQrtE4tZOrgo78nZp2jnKz3L65T5LdQ==
   dependencies:
     arrify "^1.0.1"
     is-plain-obj "^1.1.0"
@@ -5267,18 +6461,22 @@ minimist-options@^3.0.1:
 minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
 
 minimist@1.2.0, minimist@^1.1.0, minimist@^1.1.3, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+  integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
 minimist@~0.0.1:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
+  integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
 mixin-deep@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
+  integrity sha512-8ZItLHeEgaqEvd5lYBXfm4EZSFCX29Jb9K+lAHhDKzReKBQKj3R+7NOF6tjqYi9t4oI8VUfaWITJQm86wnXGNQ==
   dependencies:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
@@ -5286,22 +6484,26 @@ mixin-deep@^1.2.0:
 mkdirp@0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.0.tgz#1d73076a6df986cd9344e15e71fcc05a4c9abf12"
+  integrity sha1-HXMHam35hs2TROFecfzAWkyavxI=
   dependencies:
     minimist "0.0.8"
 
 mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
   dependencies:
     minimist "0.0.8"
 
 mkpath@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/mkpath/-/mkpath-1.0.0.tgz#ebb3a977e7af1c683ae6fda12b545a6ba6c5853d"
+  integrity sha1-67Opd+evHGg65v2hK1Raa6bFhT0=
 
 mocha-nightwatch@3.2.2:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/mocha-nightwatch/-/mocha-nightwatch-3.2.2.tgz#91bcb9b3bde057dd7677c78125e491e58d66647c"
+  integrity sha1-kby5s73gV912d8eBJeSR5Y1mZHw=
   dependencies:
     browser-stdout "1.3.0"
     commander "2.9.0"
@@ -5318,10 +6520,12 @@ mocha-nightwatch@3.2.2:
 modify-values@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/modify-values/-/modify-values-1.0.0.tgz#e2b6cdeb9ce19f99317a53722f3dbf5df5eaaab2"
+  integrity sha1-4rbN65zhn5kxelNyLz2/XfXqqrI=
 
 module-deps@^4.0.8:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/module-deps/-/module-deps-4.1.1.tgz#23215833f1da13fd606ccb8087b44852dcb821fd"
+  integrity sha1-IyFYM/HaE/1gbMuAh7RIUty4If0=
   dependencies:
     JSONStream "^1.0.3"
     browser-resolve "^1.7.0"
@@ -5342,26 +6546,32 @@ module-deps@^4.0.8:
 ms@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
+  integrity sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg=
 
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+  integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
 
 mute-stream@0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.6.tgz#48962b19e169fd1dfc240b3f1e7317627bbc47db"
+  integrity sha1-SJYrGeFp/R38JAs/HnMXYnu8R9s=
 
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
+  integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
 nan@^2.3.0:
   version "2.9.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.9.2.tgz#f564d75f5f8f36a6d9456cca7a6c4fe488ab7866"
+  integrity sha512-ltW65co7f3PQWBDbqVvaU1WtFJUsNW7sWWm4HINhbMQIyVyzIeyZ8toX5TC5eeooE6piZoaEh4cZkueSKG3KYw==
 
 nanomatch@^1.2.9:
   version "1.2.9"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
+  integrity sha512-n8R9bS8yQ6eSXaV6jHUpKzD8gLsin02w1HSFiegwrs9E098Ylhw5jdyKPaYqvHknHaSCKTPp7C8dGCQ0q9koXA==
   dependencies:
     arr-diff "^4.0.0"
     array-unique "^0.3.2"
@@ -5379,26 +6589,32 @@ nanomatch@^1.2.9:
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
+  integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
+  integrity sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=
 
 neo-async@^2.5.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.0.tgz#76b1c823130cca26acfbaccc8fbaf0a2fa33b18f"
+  integrity sha512-nJmSswG4As/MkRq7QZFuH/sf/yuv8ODdMZrY4Bedjp77a5MK4A6s7YbBB64c9u79EBUOfXUXBvArmvzTD0X+6g==
 
 netmask@~1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/netmask/-/netmask-1.0.6.tgz#20297e89d86f6f6400f250d9f4f6b4c1945fcd35"
+  integrity sha1-ICl+idhvb2QA8lDZ9Pa0wZRfzTU=
 
 nightwatch-helpers@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/nightwatch-helpers/-/nightwatch-helpers-1.2.0.tgz#cdefeb7635074a141825a7b6d1b955b6d7810a0f"
+  integrity sha1-ze/rdjUHShQYJae20blVtteBCg8=
 
 nightwatch@^0.9.16:
   version "0.9.20"
   resolved "https://registry.yarnpkg.com/nightwatch/-/nightwatch-0.9.20.tgz#156d17cd058cbc31f43ab18e915f7ec297fb53e0"
+  integrity sha1-FW0XzQWMvDH0OrGOkV9+wpf7U+A=
   dependencies:
     chai-nightwatch "~0.1.x"
     ejs "2.5.7"
@@ -5414,6 +6630,7 @@ nightwatch@^0.9.16:
 node-libs-browser@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/node-libs-browser/-/node-libs-browser-2.1.0.tgz#5f94263d404f6e44767d726901fff05478d600df"
+  integrity sha512-5AzFzdoIMb89hBGMZglEegffzgRg+ZFoUmisQ8HI4j1KDdpx13J0taNp2y9xPbur6W61gepGDDotGBVQ7mfUCg==
   dependencies:
     assert "^1.1.1"
     browserify-zlib "^0.2.0"
@@ -5439,9 +6656,15 @@ node-libs-browser@^2.0.0:
     util "^0.10.3"
     vm-browserify "0.0.4"
 
+node-modules-regexp@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/node-modules-regexp/-/node-modules-regexp-1.0.0.tgz#8d9dbe28964a4ac5712e9131642107c71e90ec40"
+  integrity sha1-jZ2+KJZKSsVxLpExZCEHxx6Q7EA=
+
 node-pre-gyp@^0.6.39:
   version "0.6.39"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
+  integrity sha512-OsJV74qxnvz/AMGgcfZoDaeDXKD3oY3QVIbBmwszTFkRisTSXbMQyn4UWzUMOtA5SVhrBZOTp0wcoSBgfMfMmQ==
   dependencies:
     detect-libc "^1.0.2"
     hawk "3.1.3"
@@ -5455,13 +6678,22 @@ node-pre-gyp@^0.6.39:
     tar "^2.2.1"
     tar-pack "^3.4.0"
 
+node-releases@^1.0.0-alpha.14:
+  version "1.0.0-alpha.14"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.0.0-alpha.14.tgz#da9e2780add4bbb59ad890af9e2018a1d9c0034b"
+  integrity sha512-G8nnF9cP9QPP/jUmYWw/uUUhumHmkm+X/EarCugYFjYm2uXRMFeOD6CVT3RLdoyCvDUNy51nirGfUItKWs/S1g==
+  dependencies:
+    semver "^5.3.0"
+
 node-uuid@~1.4.7:
   version "1.4.8"
   resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.8.tgz#b040eb0923968afabf8d32fb1f17f1167fdab907"
+  integrity sha1-sEDrCSOWivq/jTL7HxfxFn/auQc=
 
 nodemailer-direct-transport@3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/nodemailer-direct-transport/-/nodemailer-direct-transport-3.3.2.tgz#e96fafb90358560947e569017d97e60738a50a86"
+  integrity sha1-6W+vuQNYVglH5WkBfZfmBzilCoY=
   dependencies:
     nodemailer-shared "1.1.0"
     smtp-connection "2.12.0"
@@ -5469,16 +6701,19 @@ nodemailer-direct-transport@3.3.2:
 nodemailer-fetch@1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/nodemailer-fetch/-/nodemailer-fetch-1.6.0.tgz#79c4908a1c0f5f375b73fe888da9828f6dc963a4"
+  integrity sha1-ecSQihwPXzdbc/6IjamCj23JY6Q=
 
 nodemailer-shared@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/nodemailer-shared/-/nodemailer-shared-1.1.0.tgz#cf5994e2fd268d00f5cf0fa767a08169edb07ec0"
+  integrity sha1-z1mU4v0mjQD1zw+nZ6CBae2wfsA=
   dependencies:
     nodemailer-fetch "1.6.0"
 
 nodemailer-smtp-pool@2.8.2:
   version "2.8.2"
   resolved "https://registry.yarnpkg.com/nodemailer-smtp-pool/-/nodemailer-smtp-pool-2.8.2.tgz#2eb94d6cf85780b1b4725ce853b9cbd5e8da8c72"
+  integrity sha1-LrlNbPhXgLG0clzoU7nL1ejajHI=
   dependencies:
     nodemailer-shared "1.1.0"
     nodemailer-wellknown "0.1.10"
@@ -5487,6 +6722,7 @@ nodemailer-smtp-pool@2.8.2:
 nodemailer-smtp-transport@2.7.2:
   version "2.7.2"
   resolved "https://registry.yarnpkg.com/nodemailer-smtp-transport/-/nodemailer-smtp-transport-2.7.2.tgz#03d71c76314f14ac7dbc7bf033a6a6d16d67fb77"
+  integrity sha1-A9ccdjFPFKx9vHvwM6am0W1n+3c=
   dependencies:
     nodemailer-shared "1.1.0"
     nodemailer-wellknown "0.1.10"
@@ -5495,10 +6731,12 @@ nodemailer-smtp-transport@2.7.2:
 nodemailer-wellknown@0.1.10:
   version "0.1.10"
   resolved "https://registry.yarnpkg.com/nodemailer-wellknown/-/nodemailer-wellknown-0.1.10.tgz#586db8101db30cb4438eb546737a41aad0cf13d5"
+  integrity sha1-WG24EB2zDLRDjrVGc3pBqtDPE9U=
 
 nodemailer@^2.5.0:
   version "2.7.2"
   resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-2.7.2.tgz#f242e649aeeae39b6c7ed740ef7b061c404d30f9"
+  integrity sha1-8kLmSa7q45tsftdA73sGHEBNMPk=
   dependencies:
     libmime "3.0.0"
     mailcomposer "4.0.1"
@@ -5511,12 +6749,14 @@ nodemailer@^2.5.0:
 nopt@3.x:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
+  integrity sha1-xkZdvwirzU2zWTF/eaxopkayj/k=
   dependencies:
     abbrev "1"
 
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
+  integrity sha1-0NRoWv1UFRk8jHUFYC0NF81kR00=
   dependencies:
     abbrev "1"
     osenv "^0.1.4"
@@ -5524,6 +6764,7 @@ nopt@^4.0.1:
 normalize-package-data@^2.3.0, normalize-package-data@^2.3.2, normalize-package-data@^2.3.4, normalize-package-data@^2.3.5:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
+  integrity sha512-9jjUFbTPfEy3R/ad/2oNbKtW9Hgovl5O1FvFWKkKblNXoN/Oou6+9+KKohPK13Yc3/TyunyWhJp6gvRNR/PPAw==
   dependencies:
     hosted-git-info "^2.1.4"
     is-builtin-module "^1.0.0"
@@ -5533,28 +6774,33 @@ normalize-package-data@^2.3.0, normalize-package-data@^2.3.2, normalize-package-
 normalize-path@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-1.0.0.tgz#32d0e472f91ff345701c15a8311018d3b0a90379"
+  integrity sha1-MtDkcvkf80VwHBWoMRAY07CpA3k=
 
 normalize-path@^2.0.0, normalize-path@^2.0.1, normalize-path@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
+  integrity sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=
   dependencies:
     remove-trailing-separator "^1.0.1"
 
 npm-path@^2.0.2:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/npm-path/-/npm-path-2.0.4.tgz#c641347a5ff9d6a09e4d9bce5580c4f505278e64"
+  integrity sha512-IFsj0R9C7ZdR5cP+ET342q77uSRdtWOlWpih5eC+lu29tIDbNEgDbzgVJ5UFvYHWhxDZ5TFkJafFioO0pPQjCw==
   dependencies:
     which "^1.2.10"
 
 npm-run-path@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
+  integrity sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=
   dependencies:
     path-key "^2.0.0"
 
 npm-which@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/npm-which/-/npm-which-3.0.1.tgz#9225f26ec3a285c209cae67c3b11a6b4ab7140aa"
+  integrity sha1-kiXybsOihcIJyuZ8OxGmtKtxQKo=
   dependencies:
     commander "^2.9.0"
     npm-path "^2.0.2"
@@ -5563,6 +6809,7 @@ npm-which@^3.0.1:
 npmlog@^4.0.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
+  integrity sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==
   dependencies:
     are-we-there-yet "~1.1.2"
     console-control-strings "~1.1.0"
@@ -5572,34 +6819,42 @@ npmlog@^4.0.2:
 null-check@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/null-check/-/null-check-1.0.0.tgz#977dffd7176012b9ec30d2a39db5cf72a0439edd"
+  integrity sha1-l33/1xdgErnsMNKjnbXPcqBDnt0=
 
 number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
+  integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
 
 nwmatcher@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/nwmatcher/-/nwmatcher-1.4.3.tgz#64348e3b3d80f035b40ac11563d278f8b72db89c"
+  integrity sha512-IKdSTiDWCarf2JTS5e9e2+5tPZGdkRJ79XjYV0pzK8Q9BpsFyBq1RGKxzs7Q8UBushGw7m6TzVKz6fcY99iSWw==
 
 oauth-sign@~0.8.1, oauth-sign@~0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
+  integrity sha1-Rqarfwrq2N6unsBWV4C31O/rnUM=
 
 oauth-sign@~0.9.0:
   version "0.9.0"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
+  integrity sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==
 
 object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+  integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
 
 object-component@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
+  integrity sha1-8MaapQ78lbhmwYb0AKM3acsvEpE=
 
 object-copy@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
+  integrity sha1-fn2Fi3gb18mRpBupde04EnVOmYw=
   dependencies:
     copy-descriptor "^0.1.0"
     define-property "^0.2.5"
@@ -5608,16 +6863,32 @@ object-copy@^0.1.0:
 object-hash@^1.1.4:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.2.0.tgz#e96af0e96981996a1d47f88ead8f74f1ebc4422b"
+  integrity sha512-smRWXzkvxw72VquyZ0wggySl7PFUtoDhvhpdwgESXxUrH7vVhhp9asfup1+rVLrhsl7L45Ee1Q/l5R2Ul4MwUg==
+
+object-keys@^1.0.12:
+  version "1.0.12"
+  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
+  integrity sha512-FTMyFUm2wBcGHnH2eXmz7tC6IwlqQZ6mVZ+6dm6vZ4IQIHjs6FdNsQBuKGPuUUUY6NfJw2PshC08Tn6LzLDOag==
 
 object-visit@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/object-visit/-/object-visit-1.0.1.tgz#f79c4493af0c5377b59fe39d395e41042dd045bb"
+  integrity sha1-95xEk68MU3e1n+OdOV5BBC3QRbs=
   dependencies:
     isobject "^3.0.0"
 
+object.getownpropertydescriptors@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.0.3.tgz#8758c846f5b407adab0f236e0986f14b051caa16"
+  integrity sha1-h1jIRvW0B62rDyNuCYbxSwUcqhY=
+  dependencies:
+    define-properties "^1.1.2"
+    es-abstract "^1.5.1"
+
 object.omit@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
+  integrity sha1-Gpx0SCnznbuFjHbKNXmuKlTr0fo=
   dependencies:
     for-own "^0.1.4"
     is-extendable "^0.1.1"
@@ -5625,38 +6896,45 @@ object.omit@^2.0.0:
 object.pick@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
+  integrity sha1-h6EKxMFpS9Lhy/U1kaZhQftd10c=
   dependencies:
     isobject "^3.0.1"
 
 on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
+  integrity sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=
   dependencies:
     ee-first "1.1.1"
 
 once@1.x, once@^1.3.0, once@^1.3.3, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
+  integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
   dependencies:
     wrappy "1"
 
 onetime@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  integrity sha1-ofeDj4MUxRbwXs78vEzP4EtO14k=
 
 onetime@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  integrity sha1-BnQoIw/WdEOyeUsiu6UotoZ5YtQ=
   dependencies:
     mimic-fn "^1.0.0"
 
 opener@~1.4.0:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/opener/-/opener-1.4.3.tgz#5c6da2c5d7e5831e8ffa3964950f8d6674ac90b8"
+  integrity sha1-XG2ixdflgx6P+jlklQ+NZnSskLg=
 
 optimist@0.6.1, optimist@0.6.x, optimist@^0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
+  integrity sha1-2j6nRob6IaGaERwybpDrFaAZZoY=
   dependencies:
     minimist "~0.0.1"
     wordwrap "~0.0.2"
@@ -5664,6 +6942,7 @@ optimist@0.6.1, optimist@0.6.x, optimist@^0.6.1:
 optionator@^0.8.1, optionator@^0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
+  integrity sha1-NkxeQJ0/TWMB1sC0wFu6UBgK62Q=
   dependencies:
     deep-is "~0.1.3"
     fast-levenshtein "~2.0.4"
@@ -5675,6 +6954,7 @@ optionator@^0.8.1, optionator@^0.8.2:
 ora@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/ora/-/ora-0.2.3.tgz#37527d220adcd53c39b73571d754156d5db657a4"
+  integrity sha1-N1J9Igrc1Tw5tzVx11QVbV22V6Q=
   dependencies:
     chalk "^1.1.1"
     cli-cursor "^1.0.2"
@@ -5684,14 +6964,17 @@ ora@^0.2.3:
 os-browserify@^0.3.0, os-browserify@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.3.0.tgz#854373c7f5c2315914fc9bfc6bd8238fdda1ec27"
+  integrity sha1-hUNzx/XCMVkU/Jv8a9gjj92h7Cc=
 
 os-homedir@^1.0.0, os-homedir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
+  integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
 
 os-locale@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
+  integrity sha512-3sslG3zJbEYcaC4YVAvDorjGxc7tv6KVATnLPZONiljsUncvihe9BQoVCEs0RZ1kmf4Hk9OBqlZfJZWI4GanKA==
   dependencies:
     execa "^0.7.0"
     lcid "^1.0.0"
@@ -5700,14 +6983,17 @@ os-locale@^2.0.0:
 os-shim@^0.1.2:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/os-shim/-/os-shim-0.1.3.tgz#6b62c3791cf7909ea35ed46e17658bb417cb3917"
+  integrity sha1-a2LDeRz3kJ6jXtRuF2WLtBfLORc=
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1, os-tmpdir@~1.0.2:
+os-tmpdir@^1.0.0, os-tmpdir@~1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
+  integrity sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=
 
 osenv@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
+  integrity sha512-0CWcCECdMVc2Rw3U5w9ZjqX6ga6ubk1xDVKxtBQPK7wis/0F2r9T6k4ydGYhecl7YUBxBVxhL5oisPsNxAPe2g==
   dependencies:
     os-homedir "^1.0.0"
     os-tmpdir "^1.0.0"
@@ -5715,30 +7001,55 @@ osenv@^0.1.4:
 p-finally@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
+  integrity sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=
 
 p-limit@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.2.0.tgz#0e92b6bedcb59f022c13d0f1949dc82d15909f1c"
+  integrity sha512-Y/OtIaXtUPr4/YpMv1pCL5L5ed0rumAaAeBSj12F+bSlMdys7i8oQF/GUJmfpTS/QoaRrS/k6pma29haJpsMng==
   dependencies:
     p-try "^1.0.0"
 
+p-limit@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.0.0.tgz#e624ed54ee8c460a778b3c9f3670496ff8a57aec"
+  integrity sha512-fl5s52lI5ahKCernzzIyAP0QAZbGIovtVHGwpcu1Jr/EpzLVDI2myISHwGqK7m8uQFugVWSrbxH7XnhGtvEc+A==
+  dependencies:
+    p-try "^2.0.0"
+
 p-locate@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
+  integrity sha1-IKAQOyIqcMj9OcwuWAaA893l7EM=
   dependencies:
     p-limit "^1.1.0"
 
+p-locate@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
+  integrity sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==
+  dependencies:
+    p-limit "^2.0.0"
+
 p-map@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
+  integrity sha512-r6zKACMNhjPJMTl8KcFH4li//gkrXWfbD6feV8l6doRHlzljFWGJ2AP6iKaCJXyZmAUMOPtvbW7EXkbWO/pLEA==
 
 p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
+  integrity sha1-y8ec26+P1CKOE/Yh8rGiN8GyB7M=
+
+p-try@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
+  integrity sha512-hMp0onDKIajHfIkdRk3P4CdCmErkYAxxDtP3Wx/4nZ3aGlau2VKh3mZpcuFkH27WQkL/3WBCPOktzA9ZOAnMQQ==
 
 pac-proxy-agent@1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/pac-proxy-agent/-/pac-proxy-agent-1.1.0.tgz#34a385dfdf61d2f0ecace08858c745d3e791fd4d"
+  integrity sha512-QBELCWyLYPgE2Gj+4wUEiMscHrQ8nRPBzYItQNOHWavwBt25ohZHQC4qnd5IszdVVrFbLsQ+dPkm6eqdjJAmwQ==
   dependencies:
     agent-base "2"
     debug "2"
@@ -5753,6 +7064,7 @@ pac-proxy-agent@1:
 pac-resolver@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/pac-resolver/-/pac-resolver-2.0.0.tgz#99b88d2f193fbdeefc1c9a529c1f3260ab5277cd"
+  integrity sha1-mbiNLxk/ve78HJpSnB8yYKtSd80=
   dependencies:
     co "~3.0.6"
     degenerator "~1.0.2"
@@ -5763,22 +7075,26 @@ pac-resolver@~2.0.0:
 pad-right@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/pad-right/-/pad-right-0.2.2.tgz#6fbc924045d244f2a2a244503060d3bfc6009774"
+  integrity sha1-b7ySQEXSRPKiokRQMGDTv8YAl3Q=
   dependencies:
     repeat-string "^1.5.2"
 
 pako@~1.0.5:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
+  integrity sha512-lQe48YPsMJAig+yngZ87Lus+NF+3mtu7DVOBu6b/gHO1YpKwIj5AWjZ/TOS7i46HD/UixzWb1zeWDZfGZ3iYcg==
 
 parents@^1.0.0, parents@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/parents/-/parents-1.0.1.tgz#fedd4d2bf193a77745fe71e371d73c3307d9c751"
+  integrity sha1-/t1NK/GTp3dF/nHjcdc8MwfZx1E=
   dependencies:
     path-platform "~0.11.15"
 
 parse-asn1@^5.0.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.0.tgz#37c4f9b7ed3ab65c74817b5f2480937fbf97c712"
+  integrity sha1-N8T5t+06tlx0gXtfJICTf7+XxxI=
   dependencies:
     asn1.js "^4.0.0"
     browserify-aes "^1.0.0"
@@ -5789,10 +7105,12 @@ parse-asn1@^5.0.0:
 parse-github-repo-url@^1.3.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/parse-github-repo-url/-/parse-github-repo-url-1.4.1.tgz#9e7d8bb252a6cb6ba42595060b7bf6df3dbc1f50"
+  integrity sha1-nn2LslKmy2ukJZUGC3v23z28H1A=
 
 parse-glob@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
+  integrity sha1-ssN2z7EfNVE7rdFz7wu246OIORw=
   dependencies:
     glob-base "^0.3.0"
     is-dotfile "^1.0.0"
@@ -5802,12 +7120,14 @@ parse-glob@^3.0.4:
 parse-json@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
+  integrity sha1-9ID0BDTvgHQfhGkJn43qGPVaTck=
   dependencies:
     error-ex "^1.2.0"
 
 parse-json@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-4.0.0.tgz#be35f5425be1f7f6c747184f98a788cb99477ee0"
+  integrity sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=
   dependencies:
     error-ex "^1.3.1"
     json-parse-better-errors "^1.0.1"
@@ -5815,78 +7135,95 @@ parse-json@^4.0.0:
 parse-passwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
+  integrity sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=
 
 parse5@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"
+  integrity sha512-VrZ7eOd3T1Fk4XWNXMgiGBK/z0MG48BWG2uQNU4I72fkQuKUTZpl+u9k+CxEG0twMVzSmXEEz12z5Fnw1jIQFA==
 
 parseqs@0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.5.tgz#d5208a3738e46766e291ba2ea173684921a8b89d"
+  integrity sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=
   dependencies:
     better-assert "~1.0.0"
 
 parseuri@0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.5.tgz#80204a50d4dbb779bfdc6ebe2778d90e4bce320a"
+  integrity sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=
   dependencies:
     better-assert "~1.0.0"
 
 parseurl@~1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
+  integrity sha1-/CidTtiZMRlGDBViUyYs3I3mW/M=
 
 pascalcase@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
+  integrity sha1-s2PlXoAGym/iF4TS2yK9FdeRfxQ=
 
 path-browserify@0.0.0, path-browserify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/path-browserify/-/path-browserify-0.0.0.tgz#a0b870729aae214005b7d5032ec2cbbb0fb4451a"
+  integrity sha1-oLhwcpquIUAFt9UDLsLLuw+0RRo=
 
 path-dirname@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-dirname/-/path-dirname-1.0.2.tgz#cc33d24d525e099a5388c0336c6e32b9160609e0"
+  integrity sha1-zDPSTVJeCZpTiMAzbG4yuRYGCeA=
 
 path-exists@2.1.0, path-exists@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
+  integrity sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=
   dependencies:
     pinkie-promise "^2.0.0"
 
 path-exists@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
+  integrity sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=
 
-path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
+path-is-absolute@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
+  integrity sha1-F0uSaHNVNP+8es5r9TpanhtcX18=
 
 path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
+  integrity sha1-NlQX3t5EQw0cEa9hAn+s8HS9/FM=
 
 path-key@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
+  integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
 path-parse@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
+  integrity sha1-PBrfhx6pzWyUMbbqK9dKD/BVxME=
 
 path-platform@~0.11.15:
   version "0.11.15"
   resolved "https://registry.yarnpkg.com/path-platform/-/path-platform-0.11.15.tgz#e864217f74c36850f0852b78dc7bf7d4a5721bf2"
+  integrity sha1-6GQhf3TDaFDwhSt43Hv31KVyG/I=
 
 path-proxy@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/path-proxy/-/path-proxy-1.0.0.tgz#18e8a36859fc9d2f1a53b48dee138543c020de5e"
+  integrity sha1-GOijaFn8nS8aU7SN7hOFQ8Ag3l4=
   dependencies:
     inflection "~1.3.0"
 
 path-type@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
+  integrity sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=
   dependencies:
     graceful-fs "^4.1.2"
     pify "^2.0.0"
@@ -5895,18 +7232,21 @@ path-type@^1.0.0:
 path-type@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
+  integrity sha1-8BLMuEFbcJb8LaoQVMPXI4lZTHM=
   dependencies:
     pify "^2.0.0"
 
 path-type@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-3.0.0.tgz#cef31dc8e0a1a3bb0d105c0cd97cf3bf47f4e36f"
+  integrity sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==
   dependencies:
     pify "^3.0.0"
 
 pbkdf2@^3.0.3:
   version "3.0.14"
   resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.14.tgz#a35e13c64799b06ce15320f459c230e68e73bade"
+  integrity sha512-gjsZW9O34fm0R7PaLHRJmLLVfSoesxztjPjE9o6R+qtVJij90ltg1joIovN9GKrRW3t1PzhDDG3UMEMFfZ+1wA==
   dependencies:
     create-hash "^1.1.2"
     create-hmac "^1.1.4"
@@ -5917,18 +7257,22 @@ pbkdf2@^3.0.3:
 pend@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"
+  integrity sha1-elfrVQpng/kRUzH89GY9XI4AelA=
 
 performance-now@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
+  integrity sha1-M+8wxcd9TqIcWlOGnZG1bY8lVeU=
 
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
+  integrity sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=
 
 phantomjs-prebuilt@^2.1.14, phantomjs-prebuilt@^2.1.7:
   version "2.1.16"
   resolved "https://registry.yarnpkg.com/phantomjs-prebuilt/-/phantomjs-prebuilt-2.1.16.tgz#efd212a4a3966d3647684ea8ba788549be2aefef"
+  integrity sha1-79ISpKOWbTZHaE6ouniFSb4q7+8=
   dependencies:
     es6-promise "^4.0.3"
     extract-zip "^1.6.5"
@@ -5943,48 +7287,65 @@ phantomjs-prebuilt@^2.1.14, phantomjs-prebuilt@^2.1.7:
 pify@^2.0.0, pify@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
+  integrity sha1-7RQaasBDqEnqWISY59yosVMw6Qw=
 
 pify@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-3.0.0.tgz#e5a4acd2c101fdf3d9a4d07f0dbc4db49dd28176"
+  integrity sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=
 
 pinkie-promise@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
+  integrity sha1-ITXW36ejWMBprJsXh3YogihFD/o=
   dependencies:
     pinkie "^2.0.0"
 
 pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
+  integrity sha1-clVrgM+g1IqXToDnckjoDtT3+HA=
+
+pirates@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/pirates/-/pirates-4.0.0.tgz#850b18781b4ac6ec58a43c9ed9ec5fe6796addbd"
+  integrity sha512-8t5BsXy1LUIjn3WWOlOuFDuKswhQb/tkak641lvBgmPOBUQHXveORtlMCp6OdPV1dtuTaEahKA8VNz6uLfKBtA==
+  dependencies:
+    node-modules-regexp "^1.0.0"
 
 pkg-dir@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-1.0.0.tgz#7a4b508a8d5bb2d629d447056ff4e9c9314cf3d4"
+  integrity sha1-ektQio1bstYp1EcFb/TpyTFM89Q=
   dependencies:
     find-up "^1.0.0"
 
 pkg-dir@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-2.0.0.tgz#f6d5d1109e19d63edf428e0bd57e12777615334b"
+  integrity sha1-9tXREJ4Z1j7fQo4L1X4Sd3YVM0s=
   dependencies:
     find-up "^2.1.0"
 
 please-upgrade-node@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.0.1.tgz#0a681f2c18915e5433a5ca2cd94e0b8206a782db"
+  integrity sha1-CmgfLBiRXlQzpcos2U4Lggangts=
 
 pluralize@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
+  integrity sha512-ARhBOdzS3e41FbkW/XWrTEtukqqLoK5+Z/4UeDaLuSW+39JPeFgs4gCGqsrJHVZX0fUrx//4OF0K1CUGwlIFow==
 
 pn@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/pn/-/pn-1.1.0.tgz#e2f4cef0e219f463c179ab37463e4e1ecdccbafb"
+  integrity sha512-2qHaIQr2VLRFoxe2nASzsV6ef4yOOH+Fi9FBOVH6cqeSgUnoyySPZkxzLuzd+RYOQTRpROA0ztTMqxROKSb/nA==
 
 portfinder@^1.0.13:
   version "1.0.13"
   resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.13.tgz#bb32ecd87c27104ae6ee44b5a3ccbf0ebb1aede9"
+  integrity sha1-uzLs2HwnEErm7kS1o8y/Drsa7ek=
   dependencies:
     async "^1.5.2"
     debug "^2.2.0"
@@ -5993,49 +7354,60 @@ portfinder@^1.0.13:
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
+  integrity sha1-AerA/jta9xoqbAL+q7jB/vfgDqs=
 
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
+  integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
 preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
+  integrity sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=
 
 pretty-format@^22.4.0:
   version "22.4.0"
   resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-22.4.0.tgz#237b1f7e1c50ed03bc65c03ccc29d7c8bb7beb94"
+  integrity sha512-pvCxP2iODIIk9adXlo4S3GRj0BrJiil68kByAa1PrgG97c1tClh9dLMgp3Z6cHFZrclaABt0UH8PIhwHuFLqYA==
   dependencies:
     ansi-regex "^3.0.0"
     ansi-styles "^3.2.0"
 
-private@^0.1.6, private@^0.1.7:
+private@^0.1.6:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
+  integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
 
 process-nextick-args@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
+  integrity sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=
 
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
+  integrity sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==
 
 process@^0.11.10, process@~0.11.0:
   version "0.11.10"
   resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
+  integrity sha1-czIwDoQBYb2j5podHZGn1LwW8YI=
 
 progress@^1.1.8:
   version "1.1.8"
   resolved "https://registry.yarnpkg.com/progress/-/progress-1.1.8.tgz#e260c78f6161cdd9b0e56cc3e0a85de17c7a57be"
+  integrity sha1-4mDHj2Fhzdmw5WzD4Khd4Xx6V74=
 
 progress@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
+  integrity sha1-ihvjZr+Pwj2yvSPxDG/pILQ4nR8=
 
 proxy-agent@2.0.0, proxy-agent@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/proxy-agent/-/proxy-agent-2.0.0.tgz#57eb5347aa805d74ec681cb25649dba39c933499"
+  integrity sha1-V+tTR6qAXXTsaByyVknbo5yTNJk=
   dependencies:
     agent-base "2"
     debug "2"
@@ -6049,18 +7421,22 @@ proxy-agent@2.0.0, proxy-agent@~2.0.0:
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
+  integrity sha1-0/wRS6BplaRexok/SEzrHXj19HY=
 
 pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
+  integrity sha1-8FKijacOYYkX7wqKw0wa5aaChrM=
 
 psl@^1.1.24:
   version "1.1.29"
   resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.29.tgz#60f580d360170bb722a797cc704411e6da850c67"
+  integrity sha512-AeUmQ0oLN02flVHXWh9sSJF7mcdFq0ppid/JkErufc3hGIV/AMa8Fo9VgDo/cT2jFdOWoFvHp90qqBH54W+gjQ==
 
 public-encrypt@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/public-encrypt/-/public-encrypt-4.0.0.tgz#39f699f3a46560dd5ebacbca693caf7c65c18cc6"
+  integrity sha1-OfaZ86RlYN1eusvKaTyvfGXBjMY=
   dependencies:
     bn.js "^4.1.0"
     browserify-rsa "^4.0.0"
@@ -6071,66 +7447,82 @@ public-encrypt@^4.0.0:
 punycode@1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
+  integrity sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0=
 
 punycode@1.4.1, punycode@^1.2.4, punycode@^1.3.2, punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
+  integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
 
 punycode@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
+  integrity sha1-X4Y+3Im5bbCQdLrXlHvwkFbKTn0=
 
 q@1.4.1, q@~1.4.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
+  integrity sha1-VXBbzZPF82c1MMLCy8DCs63cKG4=
 
 q@^1.4.1, q@^1.5.0, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
+  integrity sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc=
 
 qjobs@^1.1.4:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/qjobs/-/qjobs-1.2.0.tgz#c45e9c61800bd087ef88d7e256423bdd49e5d071"
+  integrity sha512-8YOJEHtxpySA3fFDyCRxA+UUV+fA+rTWnuWvylOK/NCjhY+b4ocCtmu8TtsWb+mYeU+GCHf/S66KZF/AsteKHg==
 
 qs@6.5.1, qs@~6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
+  integrity sha512-eRzhrN1WSINYCDCbrz796z37LOe3m5tmW7RQf6oBntukAG1nmovJvhnwHHRMAfeoItc1m2Hk02WER2aQ/iqs+A==
 
 qs@~2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
+  integrity sha1-6eha2+ddoLvkyOBHaghikPhjtAQ=
 
 qs@~6.2.0:
   version "6.2.3"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.3.tgz#1cfcb25c10a9b2b483053ff39f5dfc9233908cfe"
+  integrity sha1-HPyyXBCpsrSDBT/zn138kjOQjP4=
 
 qs@~6.3.0:
   version "6.3.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
+  integrity sha1-51vV9uJoEioqDgvaYwslUMFmUCw=
 
 qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
+  integrity sha1-E+JtKK1rD/qpExLNO/cI7TUecjM=
 
 qs@~6.5.2:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+  integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
 
 querystring-es3@^0.2.0, querystring-es3@~0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
+  integrity sha1-nsYfeQSYdXB9aUFFlv2Qek1xHnM=
 
 querystring@0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
+  integrity sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA=
 
 quick-lru@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
+  integrity sha1-Q2CxfGETatOAeDl/8RQW4Ybc+7g=
 
 randomatic@^1.1.3:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-1.1.7.tgz#c7abe9cc8b87c0baa876b19fde83fd464797e38c"
+  integrity sha512-D5JUjPyJbaJDkuAazpVnSfVkLlpeO3wDlPROTMLGKG1zMFNFRgrciKo1ltz/AzNTkqE0HzDx655QOL51N06how==
   dependencies:
     is-number "^3.0.0"
     kind-of "^4.0.0"
@@ -6138,12 +7530,14 @@ randomatic@^1.1.3:
 randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/randombytes/-/randombytes-2.0.6.tgz#d302c522948588848a8d300c932b44c24231da80"
+  integrity sha512-CIQ5OFxf4Jou6uOKe9t1AOgqpeU5fd70A8NPdHSGeYXqXsPe6peOwI0cUl88RWZ6sP1vPMV3avd/R6cZ5/sP1A==
   dependencies:
     safe-buffer "^5.1.0"
 
 randomfill@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/randomfill/-/randomfill-1.0.4.tgz#c92196fc86ab42be983f1bf31778224931d61458"
+  integrity sha512-87lcbR8+MhcWcUiQ+9e+Rwx8MyR2P7qnt15ynUlbm3TU/fjbgz4GsvfSUDTemtCCtVCqb4ZcEFlyPNTh9bBTLw==
   dependencies:
     randombytes "^2.0.5"
     safe-buffer "^5.1.0"
@@ -6151,10 +7545,12 @@ randomfill@^1.0.3:
 range-parser@^1.0.3, range-parser@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
+  integrity sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=
 
 raw-body@2, raw-body@2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.2.tgz#bcd60c77d3eb93cde0050295c3f379389bc88f89"
+  integrity sha1-vNYMd9Prk83gBQKVw/N5OJvIj4k=
   dependencies:
     bytes "3.0.0"
     http-errors "1.6.2"
@@ -6164,6 +7560,7 @@ raw-body@2, raw-body@2.3.2:
 rc@^1.1.7:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.5.tgz#275cd687f6e3b36cc756baa26dfee80a790301fd"
+  integrity sha1-J1zWh/bjs2zHVrqibf7oCnkDAf0=
   dependencies:
     deep-extend "~0.4.0"
     ini "~1.3.0"
@@ -6173,12 +7570,14 @@ rc@^1.1.7:
 read-only-stream@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/read-only-stream/-/read-only-stream-2.0.0.tgz#2724fd6a8113d73764ac288d4386270c1dbf17f0"
+  integrity sha1-JyT9aoET1zdkrCiNQ4YnDB2/F/A=
   dependencies:
     readable-stream "^2.0.2"
 
 read-pkg-up@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
+  integrity sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=
   dependencies:
     find-up "^1.0.0"
     read-pkg "^1.0.0"
@@ -6186,6 +7585,7 @@ read-pkg-up@^1.0.1:
 read-pkg-up@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-2.0.0.tgz#6b72a8048984e0c41e79510fd5e9fa99b3b549be"
+  integrity sha1-a3KoBImE4MQeeVEP1en6mbO1Sb4=
   dependencies:
     find-up "^2.0.0"
     read-pkg "^2.0.0"
@@ -6193,13 +7593,23 @@ read-pkg-up@^2.0.0:
 read-pkg-up@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-3.0.0.tgz#3ed496685dba0f8fe118d0691dc51f4a1ff96f07"
+  integrity sha1-PtSWaF26D4/hGNBpHcUfSh/5bwc=
   dependencies:
     find-up "^2.0.0"
     read-pkg "^3.0.0"
 
+read-pkg-up@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-4.0.0.tgz#1b221c6088ba7799601c808f91161c66e58f8978"
+  integrity sha512-6etQSH7nJGsK0RbG/2TeDzZFa8shjQ1um+SwQQ5cwKy0dhSXdOncEhb1CPpvQG4h7FyOV6EB6YlV0yJvZQNAkA==
+  dependencies:
+    find-up "^3.0.0"
+    read-pkg "^3.0.0"
+
 read-pkg@^1.0.0, read-pkg@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
+  integrity sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=
   dependencies:
     load-json-file "^1.0.0"
     normalize-package-data "^2.3.2"
@@ -6208,6 +7618,7 @@ read-pkg@^1.0.0, read-pkg@^1.1.0:
 read-pkg@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-2.0.0.tgz#8ef1c0623c6a6db0dc6713c4bfac46332b2368f8"
+  integrity sha1-jvHAYjxqbbDcZxPEv6xGMysjaPg=
   dependencies:
     load-json-file "^2.0.0"
     normalize-package-data "^2.3.2"
@@ -6216,6 +7627,7 @@ read-pkg@^2.0.0:
 read-pkg@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-3.0.0.tgz#9cbc686978fee65d16c00e2b19c237fcf6e38389"
+  integrity sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=
   dependencies:
     load-json-file "^4.0.0"
     normalize-package-data "^2.3.2"
@@ -6224,6 +7636,7 @@ read-pkg@^3.0.0:
 readable-stream@1.1.x, "readable-stream@1.x >=1.1.9":
   version "1.1.14"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
+  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.1"
@@ -6233,6 +7646,7 @@ readable-stream@1.1.x, "readable-stream@1.x >=1.1.9":
 readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3:
   version "2.3.5"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.5.tgz#b4f85003a938cbb6ecbce2a124fb1012bd1a838d"
+  integrity sha512-tK0yDhrkygt/knjowCUiWP9YdV7c5R+8cR0r/kt9ZhBU906Fs6RpQJCEilamRJj1Nx2rWI6LkW9gKqjTkshhEw==
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
@@ -6245,6 +7659,7 @@ readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stre
 readable-stream@~2.0.0, readable-stream@~2.0.5:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
+  integrity sha1-j5A0HmilPMySh4jaz80Rs265t44=
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.1"
@@ -6256,6 +7671,7 @@ readable-stream@~2.0.0, readable-stream@~2.0.5:
 readdirp@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
+  integrity sha1-TtCtBg3zBzMAxIRANz9y0cxkLXg=
   dependencies:
     graceful-fs "^4.1.2"
     minimatch "^3.0.2"
@@ -6265,12 +7681,14 @@ readdirp@^2.0.0:
 rechoir@^0.6.2:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  integrity sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=
   dependencies:
     resolve "^1.1.6"
 
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
+  integrity sha1-z5Fqsf1fHxbfsggi3W7H9zDCr94=
   dependencies:
     indent-string "^2.1.0"
     strip-indent "^1.0.1"
@@ -6278,6 +7696,7 @@ redent@^1.0.0:
 redent@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-2.0.0.tgz#c1b2007b42d57eb1389079b3c8333639d5e1ccaa"
+  integrity sha1-wbIAe0LVfrE4kHmzyDM2OdXhzKo=
   dependencies:
     indent-string "^3.0.0"
     strip-indent "^2.0.0"
@@ -6285,103 +7704,130 @@ redent@^2.0.0:
 redis-commands@^1.2.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/redis-commands/-/redis-commands-1.3.5.tgz#4495889414f1e886261180b1442e7295602d83a2"
+  integrity sha512-foGF8u6MXGFF++1TZVC6icGXuMYPftKXt1FBT2vrfU9ZATNtZJ8duRC5d1lEfE8hyVe3jhelHGB91oB7I6qLsA==
 
 redis-parser@^2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/redis-parser/-/redis-parser-2.6.0.tgz#52ed09dacac108f1a631c07e9b69941e7a19504b"
+  integrity sha1-Uu0J2srBCPGmMcB+m2mUHnoZUEs=
 
 redis@^2.7.1:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/redis/-/redis-2.8.0.tgz#202288e3f58c49f6079d97af7a10e1303ae14b02"
+  integrity sha512-M1OkonEQwtRmZv4tEWF2VgpG0JWJ8Fv1PhlgT5+B+uNq2cA3Rt1Yt/ryoR+vQNOQcIEgdCdfH0jr3bDpihAw1A==
   dependencies:
     double-ended-queue "^2.1.0-0"
     redis-commands "^1.2.0"
     redis-parser "^2.6.0"
 
-regenerate@^1.2.1:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.3.tgz#0c336d3980553d755c39b586ae3b20aa49c82b7f"
+regenerate-unicode-properties@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/regenerate-unicode-properties/-/regenerate-unicode-properties-7.0.0.tgz#107405afcc4a190ec5ed450ecaa00ed0cafa7a4c"
+  integrity sha512-s5NGghCE4itSlUS+0WUj88G6cfMVMmH8boTPNvABf8od+2dhT9WDlWu8n01raQAJZMOK8Ch6jSexaRO7swd6aw==
+  dependencies:
+    regenerate "^1.4.0"
+
+regenerate@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.0.tgz#4a856ec4b56e4077c557589cae85e7a4c8869a11"
+  integrity sha512-1G6jJVDWrt0rK99kBjvEtziZNCICAuvIPkSiUFIQxVP06RCVpq3dmDo2oi6ABpYaDYaTRr67BEhL8r1wgEZZKg==
 
 regenerator-runtime@^0.11.0:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
+  integrity sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==
 
-regenerator-transform@^0.10.0:
-  version "0.10.1"
-  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.10.1.tgz#1e4996837231da8b7f3cf4114d71b5691a0680dd"
+regenerator-transform@^0.13.3:
+  version "0.13.3"
+  resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.13.3.tgz#264bd9ff38a8ce24b06e0636496b2c856b57bcbb"
+  integrity sha512-5ipTrZFSq5vU2YoGoww4uaRVAK4wyYC4TSICibbfEPOruUu8FFP7ErV0BjmbIOEpn3O/k9na9UEdYR/3m7N6uA==
   dependencies:
-    babel-runtime "^6.18.0"
-    babel-types "^6.19.0"
     private "^0.1.6"
 
 regex-cache@^0.4.2:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.4.tgz#75bdc58a2a1496cec48a12835bc54c8d562336dd"
+  integrity sha512-nVIZwtCjkC9YgvWkpM55B5rBhBYRZhAaJbgcFYXXsHnbZ9UZI9nnVWYZpBlCqv9ho2eZryPnWrZGsOdPwVWXWQ==
   dependencies:
     is-equal-shallow "^0.1.3"
 
 regex-not@^1.0.0, regex-not@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
+  integrity sha512-J6SDjUgDxQj5NusnOtdFxDwN/+HWykR8GELwctJ7mdqhcyy1xEc4SRFHUXvxTp661YaVKAjfRLZ9cCqS6tn32A==
   dependencies:
     extend-shallow "^3.0.2"
     safe-regex "^1.1.0"
 
-regexpu-core@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-2.0.0.tgz#49d038837b8dcf8bfa5b9a42139938e6ea2ae240"
+regexpu-core@^4.1.3, regexpu-core@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-4.2.0.tgz#a3744fa03806cffe146dea4421a3e73bdcc47b1d"
+  integrity sha512-Z835VSnJJ46CNBttalHD/dB+Sj2ezmY6Xp38npwU87peK6mqOzOpV8eYktdkLTEkzzD+JsTcxd84ozd8I14+rw==
   dependencies:
-    regenerate "^1.2.1"
-    regjsgen "^0.2.0"
-    regjsparser "^0.1.4"
+    regenerate "^1.4.0"
+    regenerate-unicode-properties "^7.0.0"
+    regjsgen "^0.4.0"
+    regjsparser "^0.3.0"
+    unicode-match-property-ecmascript "^1.0.4"
+    unicode-match-property-value-ecmascript "^1.0.2"
 
-regjsgen@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.2.0.tgz#6c016adeac554f75823fe37ac05b92d5a4edb1f7"
+regjsgen@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.4.0.tgz#c1eb4c89a209263f8717c782591523913ede2561"
+  integrity sha512-X51Lte1gCYUdlwhF28+2YMO0U6WeN0GLpgpA7LK7mbdDnkQYiwvEpmpe0F/cv5L14EbxgrdayAG3JETBv0dbXA==
 
-regjsparser@^0.1.4:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.1.5.tgz#7ee8f84dc6fa792d3fd0ae228d24bd949ead205c"
+regjsparser@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.3.0.tgz#3c326da7fcfd69fa0d332575a41c8c0cdf588c96"
+  integrity sha512-zza72oZBBHzt64G7DxdqrOo/30bhHkwMUoT0WqfGu98XLd7N+1tsy5MJ96Bk4MD0y74n629RhmrGW6XlnLLwCA==
   dependencies:
     jsesc "~0.5.0"
 
 remove-trailing-separator@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz#c24bce2a283adad5bc3f58e0d48249b92379d8ef"
+  integrity sha1-wkvOKig62tW8P1jg1IJJuSN52O8=
 
 repeat-element@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
+  integrity sha1-7wiaF40Ug7quTZPrmLT55OEdmQo=
 
 repeat-string@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-0.2.2.tgz#c7a8d3236068362059a7e4651fc6884e8b1fb4ae"
+  integrity sha1-x6jTI2BoNiBZp+RlH8aITosftK4=
 
 repeat-string@^1.5.2, repeat-string@^1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
+  integrity sha1-jcrkcOHIirwtYA//Sndihtp15jc=
 
 repeating@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/repeating/-/repeating-2.0.1.tgz#5214c53a926d3552707527fbab415dbc08d06dda"
+  integrity sha1-UhTFOpJtNVJwdSf7q0FdvAjQbdo=
   dependencies:
     is-finite "^1.0.0"
 
 request-progress@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/request-progress/-/request-progress-2.0.1.tgz#5d36bb57961c673aa5b788dbc8141fdf23b44e08"
+  integrity sha1-XTa7V5YcZzqlt4jbyBQf3yO0Tgg=
   dependencies:
     throttleit "^1.0.0"
 
 request-promise-core@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.1.tgz#3eee00b2c5aa83239cfb04c5700da36f81cd08b6"
+  integrity sha1-Pu4AssWqgyOc+wTFcA2jb4HNCLY=
   dependencies:
     lodash "^4.13.1"
 
 request-promise-native@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/request-promise-native/-/request-promise-native-1.0.5.tgz#5281770f68e0c9719e5163fd3fab482215f4fda5"
+  integrity sha1-UoF3D2jgyXGeUWP9P6tIIhX0/aU=
   dependencies:
     request-promise-core "1.1.1"
     stealthy-require "^1.1.0"
@@ -6390,6 +7836,7 @@ request-promise-native@^1.0.5:
 request@2.75.x:
   version "2.75.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.75.0.tgz#d2b8268a286da13eaa5d01adf5d18cc90f657d93"
+  integrity sha1-0rgmiihtoT6qXQGt9dGMyQ9lfZM=
   dependencies:
     aws-sign2 "~0.6.0"
     aws4 "^1.2.1"
@@ -6416,6 +7863,7 @@ request@2.75.x:
 request@2.79.0:
   version "2.79.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
+  integrity sha1-Tf5b9r6LjNw3/Pk+BLZVd3InEN4=
   dependencies:
     aws-sign2 "~0.6.0"
     aws4 "^1.2.1"
@@ -6441,6 +7889,7 @@ request@2.79.0:
 request@2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
+  integrity sha1-xpKJRqDgbF+Nb4qTM0af/aRimKA=
   dependencies:
     aws-sign2 "~0.6.0"
     aws4 "^1.2.1"
@@ -6468,6 +7917,7 @@ request@2.81.0:
 request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.83.0:
   version "2.83.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.83.0.tgz#ca0b65da02ed62935887808e6f510381034e3356"
+  integrity sha512-lR3gD69osqm6EYLk9wB/G1W/laGWjzH90t1vEa2xuxHD5KUrSzp9pUSfTm+YC5Nxt2T8nMPEvKlhbQayU7bgFw==
   dependencies:
     aws-sign2 "~0.7.0"
     aws4 "^1.6.0"
@@ -6495,6 +7945,7 @@ request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.83.0:
 request@^2.87.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
+  integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
   dependencies:
     aws-sign2 "~0.7.0"
     aws4 "^1.8.0"
@@ -6520,6 +7971,7 @@ request@^2.87.0:
 requestretry@^1.2.2:
   version "1.13.0"
   resolved "https://registry.yarnpkg.com/requestretry/-/requestretry-1.13.0.tgz#213ec1006eeb750e8b8ce54176283d15a8d55d94"
+  integrity sha512-Lmh9qMvnQXADGAQxsXHP4rbgO6pffCfuR8XUBdP9aitJcLQJxhp7YZK4xAVYXnPJ5E52mwrfiKQtKonPL8xsmg==
   dependencies:
     extend "^3.0.0"
     lodash "^4.15.0"
@@ -6529,22 +7981,27 @@ requestretry@^1.2.2:
 require-directory@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
+  integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
 require-from-string@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.1.tgz#c545233e9d7da6616e9d59adfb39fc9f588676ff"
+  integrity sha1-xUUjPp19pmFunVmt+zn8n1iGdv8=
 
 require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
+  integrity sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=
 
 require-relative@0.8.7:
   version "0.8.7"
   resolved "https://registry.yarnpkg.com/require-relative/-/require-relative-0.8.7.tgz#7999539fc9e047a37928fa196f8e1563dabd36de"
+  integrity sha1-eZlTn8ngR6N5KPoZb44VY9q9Nt4=
 
 require-uncached@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
+  integrity sha1-Tg1W1slmL9MeQwEcS5WqSZVUIdM=
   dependencies:
     caller-path "^0.1.0"
     resolve-from "^1.0.0"
@@ -6552,10 +8009,12 @@ require-uncached@^1.0.3:
 requires-port@1.x.x:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+  integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
 
 resolve-dir@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/resolve-dir/-/resolve-dir-0.1.1.tgz#b219259a5602fac5c5c496ad894a6e8cc430261e"
+  integrity sha1-shklmlYC+sXFxJatiUpujMQwJh4=
   dependencies:
     expand-tilde "^1.2.2"
     global-modules "^0.2.3"
@@ -6563,24 +8022,36 @@ resolve-dir@^0.1.0:
 resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
+  integrity sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=
 
 resolve-url@^0.2.1, resolve-url@~0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
+  integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
 
 resolve@1.1.7, resolve@1.1.x:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
+  integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
 
 resolve@^1.1.3, resolve@^1.1.4, resolve@^1.1.6, resolve@^1.3.3, resolve@^1.4.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.5.0.tgz#1f09acce796c9a762579f31b2c1cc4c3cddf9f36"
+  integrity sha512-hgoSGrc3pjzAPHNBg+KnFcK2HwlHTs/YrAGUr6qgTVUZmXv1UEXXl0bZNBKMA9fud6lRYFdPGz0xXxycPzmmiw==
+  dependencies:
+    path-parse "^1.0.5"
+
+resolve@^1.3.2:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.1.tgz#82f1ec19a423ac1fbd080b0bab06ba36e84a7a26"
+  integrity sha512-AicPrAC7Qu1JxPCZ9ZgCZlY35QgFnNqc+0LtbRNxnVw4TXvjQ72wnuL9JQcEBgXkI9JM8MsT9kaQoHcpCRJOYA==
   dependencies:
     path-parse "^1.0.5"
 
 restore-cursor@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
+  integrity sha1-NGYfRohjJ/7SmRR5FSJS35LapUE=
   dependencies:
     exit-hook "^1.0.0"
     onetime "^1.0.0"
@@ -6588,6 +8059,7 @@ restore-cursor@^1.0.1:
 restore-cursor@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
+  integrity sha1-n37ih/gv0ybU/RYpI9YhKe7g368=
   dependencies:
     onetime "^2.0.0"
     signal-exit "^3.0.2"
@@ -6595,26 +8067,31 @@ restore-cursor@^2.0.0:
 ret@~0.1.10:
   version "0.1.15"
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
+  integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
 
 right-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
+  integrity sha1-YTObci/mo1FWiSENJOFMlhSGE+8=
   dependencies:
     align-text "^0.1.1"
 
 right-pad@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
+  integrity sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=
 
 rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
+  integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==
   dependencies:
     glob "^7.0.5"
 
 ripemd160@^2.0.0, ripemd160@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.1.tgz#0f4584295c53a3628af7e6d79aca21ce57d1c6e7"
+  integrity sha1-D0WEKVxTo2KK9+bXmsohzlfRxuc=
   dependencies:
     hash-base "^2.0.0"
     inherits "^2.0.1"
@@ -6622,18 +8099,22 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
 rollup-plugin-alias@^1.3.1:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/rollup-plugin-alias/-/rollup-plugin-alias-1.4.0.tgz#120cba7c46621c03138f0ca6fd5dd2ade9872db9"
+  integrity sha512-lB094zdi19FS+1bVarVp9kBN0Zk41PdTGoCk0z8xesKO7RGjOo18cp1hUzEqrOQ4bM9+KLD9nbnu/XUxQm9pbg==
   dependencies:
     slash "^1.0.0"
 
-rollup-plugin-babel@^3.0.2:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-3.0.3.tgz#63adedc863130327512a4a9006efc2241c5b7c15"
+rollup-plugin-babel@^4.0.1:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-4.0.3.tgz#8282b0e22233160d679e9c7631342e848422fb02"
+  integrity sha512-/PP0MgbPQyRywI4zRIJim6ySjTcOLo4kQbEbROqp9kOR3kHC3FeU++QpBDZhS2BcHtJTVZMVbBV46flbBN5zxQ==
   dependencies:
-    rollup-pluginutils "^1.5.0"
+    "@babel/helper-module-imports" "^7.0.0"
+    rollup-pluginutils "^2.3.0"
 
 rollup-plugin-buble@^0.19.2:
   version "0.19.2"
   resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.19.2.tgz#c0590c7d3d475b5ed59f129764ec93710cc6e8dd"
+  integrity sha512-dxK0prR8j/7qhI2EZDz/evKCRuhuZMpRlUGPrRWmpg5/2V8tP1XFW+Uk0WfxyNgFfJHvy0GmxnJSTb5dIaNljQ==
   dependencies:
     buble "^0.19.2"
     rollup-pluginutils "^2.0.1"
@@ -6641,6 +8122,7 @@ rollup-plugin-buble@^0.19.2:
 rollup-plugin-commonjs@^8.0.0:
   version "8.4.1"
   resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.4.1.tgz#5c9cea2b2c3de322f5fbccd147e07ed5e502d7a0"
+  integrity sha512-mg+WuD+jlwoo8bJtW3Mvx7Tz6TsIdMsdhuvCnDMoyjh0oxsVgsjB/N0X984RJCWwc5IIiqNVJhXeeITcc73++A==
   dependencies:
     acorn "^5.2.1"
     estree-walker "^0.5.0"
@@ -6651,6 +8133,7 @@ rollup-plugin-commonjs@^8.0.0:
 rollup-plugin-flow-no-whitespace@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/rollup-plugin-flow-no-whitespace/-/rollup-plugin-flow-no-whitespace-1.0.0.tgz#bd4ba1bcd99ad5b88234d72e6e2dacea9aa02d16"
+  integrity sha1-vUuhvNma1biCNNcubi2s6pqgLRY=
   dependencies:
     flow-remove-types-no-whitespace "^1.0.3"
     rollup-pluginutils "^1.5.2"
@@ -6658,6 +8141,7 @@ rollup-plugin-flow-no-whitespace@^1.0.0:
 rollup-plugin-node-resolve@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.2.0.tgz#31534952f3ab21f9473c1d092be7ed43937ea4d4"
+  integrity sha512-stvVrKaQiNu65ObGJLCHyHH/NXjiPMt/ZHwvl444KgJPrii1zCgyg+NTK2Uy6WExL+OuUWdHd7T8EoPQDtYEkw==
   dependencies:
     builtin-modules "^2.0.0"
     is-module "^1.0.0"
@@ -6666,14 +8150,16 @@ rollup-plugin-node-resolve@^3.0.0:
 rollup-plugin-replace@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/rollup-plugin-replace/-/rollup-plugin-replace-2.0.0.tgz#19074089c8ed57184b8cc64e967a03d095119277"
+  integrity sha512-pK9mTd/FNrhtBxcTBXoh0YOwRIShV0gGhv9qvUtNcXHxIMRZMXqfiZKVBmCRGp8/2DJRy62z2JUE7/5tP6WxOQ==
   dependencies:
     magic-string "^0.22.4"
     minimatch "^3.0.2"
     rollup-pluginutils "^2.0.1"
 
-rollup-pluginutils@^1.5.0, rollup-pluginutils@^1.5.2:
+rollup-pluginutils@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz#1e156e778f94b7255bfa1b3d0178be8f5c552408"
+  integrity sha1-HhVud4+UtyVb+hs9AXi+j1xVJAg=
   dependencies:
     estree-walker "^0.2.1"
     minimatch "^3.0.2"
@@ -6681,13 +8167,23 @@ rollup-pluginutils@^1.5.0, rollup-pluginutils@^1.5.2:
 rollup-pluginutils@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.0.1.tgz#7ec95b3573f6543a46a6461bd9a7c544525d0fc0"
+  integrity sha1-fslbNXP2VDpGpkYb2afFRFJdD8A=
   dependencies:
     estree-walker "^0.3.0"
     micromatch "^2.3.11"
 
+rollup-pluginutils@^2.3.0:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.3.3.tgz#3aad9b1eb3e7fe8262820818840bf091e5ae6794"
+  integrity sha512-2XZwja7b6P5q4RZ5FhyX1+f46xi1Z3qBKigLRZ6VTZjwbN0K1IFGMlwm06Uu0Emcre2Z63l77nq/pzn+KxIEoA==
+  dependencies:
+    estree-walker "^0.5.2"
+    micromatch "^2.3.11"
+
 rollup-watch@^4.0.0:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/rollup-watch/-/rollup-watch-4.3.1.tgz#5aa1eaeab787addf368905d102b39d6fc5ce4a8b"
+  integrity sha512-6yjnIwfjpSrqA8IafyIu7fsEyeImNR4aDjA1bQ7KWeVuiA+Clfsx8+PGQkyABWIQzmauQ//tIJ5wAxLXsXs8qQ==
   dependencies:
     chokidar "^1.7.0"
     require-relative "0.8.7"
@@ -6696,50 +8192,60 @@ rollup-watch@^4.0.0:
 rollup@^0.54.1:
   version "0.54.1"
   resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.54.1.tgz#415a5d999421502646cf54b873fc4ce1a7393970"
+  integrity sha512-ebUUgUQ7K/sLn67CtO8Jj8H3RgKAoVWrpiJA7enOkwZPZzTCl8GC8CZ00g5jowjX80KgBmzs4Z1MV6cgglT86A==
 
 run-async@^2.2.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
+  integrity sha1-A3GrSuC91yDUFm19/aZP96RFpsA=
   dependencies:
     is-promise "^2.1.0"
 
 rx-lite-aggregates@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
+  integrity sha1-dTuHqJoRyVRnxKwWJsTvxOBcZ74=
   dependencies:
     rx-lite "*"
 
 rx-lite@*, rx-lite@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
+  integrity sha1-Cx4Rr4vESDbwSmQH6S2kJGe3lEQ=
 
 rx@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
+  integrity sha1-pfE/957zt0D+MKqAP7CfmIBdR4I=
 
 rxjs@^5.4.2:
   version "5.5.6"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.6.tgz#e31fb96d6fd2ff1fd84bcea8ae9c02d007179c02"
+  integrity sha512-v4Q5HDC0FHAQ7zcBX7T2IL6O5ltl1a2GX4ENjPXg6SjDY69Cmx9v4113C99a4wGF16ClPv5Z8mghuYorVkg/kg==
   dependencies:
     symbol-observable "1.0.1"
 
 safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
+  integrity sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg==
 
 safe-buffer@^5.1.2:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+  integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
 safe-regex@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
+  integrity sha1-QKNmnzsHfR6UPURinhV91IAjvy4=
   dependencies:
     ret "~0.1.10"
 
 sauce-connect-launcher@^1.2.2:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/sauce-connect-launcher/-/sauce-connect-launcher-1.2.3.tgz#d2f931ad7ae8fdabf1968a440e7b20417aca7f86"
+  integrity sha1-0vkxrXro/avxlopEDnsgQXrKf4Y=
   dependencies:
     adm-zip "~0.4.3"
     async "^2.1.2"
@@ -6750,16 +8256,19 @@ sauce-connect-launcher@^1.2.2:
 saucelabs@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.4.0.tgz#b934a9af9da2874b3f40aae1fcde50a4466f5f38"
+  integrity sha1-uTSpr52ih0s/QKrh/N5QpEZvXzg=
   dependencies:
     https-proxy-agent "^1.0.0"
 
 sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
+  integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
 schema-utils@^0.4.5:
   version "0.4.5"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.5.tgz#21836f0608aac17b78f9e3e24daff14a5ca13a3e"
+  integrity sha512-yYrjb9TX2k/J1Y5UNy3KYdZq10xhYcF8nMpAW6o3hy6Q8WSIEf9lJHG/ePnOBfziPM3fvQwfOwa13U/Fh8qTfA==
   dependencies:
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
@@ -6767,36 +8276,49 @@ schema-utils@^0.4.5:
 selenium-server@^2.53.1:
   version "2.53.1"
   resolved "https://registry.yarnpkg.com/selenium-server/-/selenium-server-2.53.1.tgz#d681528812f3c2e0531a6b7e613e23bb02cce8a6"
+  integrity sha1-1oFSiBLzwuBTGmt+YT4juwLM6KY=
 
 "semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
+  integrity sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==
+
+semver@^5.4.1:
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
+  integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
 
 semver@~5.0.1:
   version "5.0.3"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.0.3.tgz#77466de589cd5d3c95f138aa78bc569a3cb5d27a"
+  integrity sha1-d0Zt5YnNXTyV8TiqeLxWmjy10no=
 
 serialize-javascript@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.4.0.tgz#7c958514db6ac2443a8abc062dc9f7886a7f6005"
+  integrity sha1-fJWFFNtqwkQ6irwGLcn3iGp/YAU=
 
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
+  integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
 
 set-getter@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/set-getter/-/set-getter-0.1.0.tgz#d769c182c9d5a51f409145f2fba82e5e86e80376"
+  integrity sha1-12nBgsnVpR9AkUXy+6guXoboA3Y=
   dependencies:
     to-object-path "^0.3.0"
 
 set-immediate-shim@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
+  integrity sha1-SysbJ+uAip+NzEgaWOXlb1mfP2E=
 
 set-value@^0.4.3:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/set-value/-/set-value-0.4.3.tgz#7db08f9d3d22dc7f78e53af3c3bf4666ecdfccf1"
+  integrity sha1-fbCPnT0i3H945Trzw79GZuzfzPE=
   dependencies:
     extend-shallow "^2.0.1"
     is-extendable "^0.1.1"
@@ -6806,6 +8328,7 @@ set-value@^0.4.3:
 set-value@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-value/-/set-value-2.0.0.tgz#71ae4a88f0feefbbf52d1ea604f3fb315ebb6274"
+  integrity sha512-hw0yxk9GT/Hr5yJEYnHNKYXkIA8mVJgd9ditYZCe16ZczcaELYYcfvaXesNACk2O8O0nTiPQcQhGUQj8JLzeeg==
   dependencies:
     extend-shallow "^2.0.1"
     is-extendable "^0.1.1"
@@ -6815,14 +8338,17 @@ set-value@^2.0.0:
 setimmediate@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
+  integrity sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=
 
 setprototypeof@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.0.3.tgz#66567e37043eeb4f04d91bd658c0cbefb55b8e04"
+  integrity sha1-ZlZ+NwQ+608E2RvWWMDL77VbjgQ=
 
 sha.js@^2.4.0, sha.js@^2.4.8, sha.js@~2.4.4:
   version "2.4.10"
   resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.10.tgz#b1fde5cd7d11a5626638a07c604ab909cfa31f9b"
+  integrity sha512-vnwmrFDlOExK4Nm16J2KMWHLrp14lBrjxMxBJpu++EnsuBmpiYaM/MEs46Vxxm/4FvdP5yTwuCTO9it5FSjrqA==
   dependencies:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
@@ -6830,6 +8356,7 @@ sha.js@^2.4.0, sha.js@^2.4.8, sha.js@~2.4.4:
 shasum@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/shasum/-/shasum-1.0.2.tgz#e7012310d8f417f4deb5712150e5678b87ae565f"
+  integrity sha1-5wEjENj0F/TetXEhUOVni4euVl8=
   dependencies:
     json-stable-stringify "~0.0.0"
     sha.js "~2.4.4"
@@ -6837,16 +8364,19 @@ shasum@^1.0.0:
 shebang-command@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
+  integrity sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=
   dependencies:
     shebang-regex "^1.0.0"
 
 shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
+  integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
 
 shell-quote@^1.6.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/shell-quote/-/shell-quote-1.6.1.tgz#f4781949cce402697127430ea3b3c5476f481767"
+  integrity sha1-9HgZSczkAmlxJ0MOo7PFR29IF2c=
   dependencies:
     array-filter "~0.0.0"
     array-map "~0.0.0"
@@ -6856,6 +8386,7 @@ shell-quote@^1.6.1:
 shelljs@0.7.6:
   version "0.7.6"
   resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.6.tgz#379cccfb56b91c8601e4793356eb5382924de9ad"
+  integrity sha1-N5zM+1a5HIYB5HkzVutTgpJN6a0=
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"
@@ -6864,6 +8395,7 @@ shelljs@0.7.6:
 shelljs@^0.8.1:
   version "0.8.1"
   resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.1.tgz#729e038c413a2254c4078b95ed46e0397154a9f1"
+  integrity sha512-YA/iYtZpzFe5HyWVGrb02FjPxc4EMCfpoU/Phg9fQoyMC72u9598OUBrsU8IrtwAKG0tO8IYaqbaLIw+k3IRGA==
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"
@@ -6872,34 +8404,41 @@ shelljs@^0.8.1:
 signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
+  integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
 slack-node@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/slack-node/-/slack-node-0.2.0.tgz#de4b8dddaa8b793f61dbd2938104fdabf37dfa30"
+  integrity sha1-3kuN3aqLeT9h29KTgQT9q/N9+jA=
   dependencies:
     requestretry "^1.2.2"
 
 slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
+  integrity sha1-xB8vbDn8FtHNF61LXYlhFK5HDVU=
 
 slice-ansi@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
+  integrity sha1-7b+JA/ZvfOL46v1s7tZeJkyDGzU=
 
 slice-ansi@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
+  integrity sha512-POqxBK6Lb3q6s047D/XsDVNPnF9Dl8JSaqe9h9lURl0OdNqy/ujDrOiIHtsqXMGbWWTIomRzAMaTyawAU//Reg==
   dependencies:
     is-fullwidth-code-point "^2.0.0"
 
 smart-buffer@^1.0.13, smart-buffer@^1.0.4:
   version "1.1.15"
   resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-1.1.15.tgz#7f114b5b65fab3e2a35aa775bb12f0d1c649bf16"
+  integrity sha1-fxFLW2X6s+KjWqd1uxLw0cZJvxY=
 
 smtp-connection@2.12.0:
   version "2.12.0"
   resolved "https://registry.yarnpkg.com/smtp-connection/-/smtp-connection-2.12.0.tgz#d76ef9127cb23c2259edb1e8349c2e8d5e2d74c1"
+  integrity sha1-1275EnyyPCJZ7bHoNJwujV4tdME=
   dependencies:
     httpntlm "1.6.1"
     nodemailer-shared "1.1.0"
@@ -6907,6 +8446,7 @@ smtp-connection@2.12.0:
 snapdragon-node@^2.0.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
+  integrity sha512-O27l4xaMYt/RSQ5TR3vpWCAB5Kb/czIcqUFOM/C4fYcLnbZUc1PkjTAMjof2pBWaSTwOUd6qUHcFGVGj7aIwnw==
   dependencies:
     define-property "^1.0.0"
     isobject "^3.0.0"
@@ -6915,12 +8455,14 @@ snapdragon-node@^2.0.1:
 snapdragon-util@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/snapdragon-util/-/snapdragon-util-3.0.1.tgz#f956479486f2acd79700693f6f7b805e45ab56e2"
+  integrity sha512-mbKkMdQKsjX4BAL4bRYTj21edOf8cN7XHdYUJEe+Zn99hVEYcMvKPct1IqNe7+AZPirn8BCDOQBHQZknqmKlZQ==
   dependencies:
     kind-of "^3.2.0"
 
 snapdragon@^0.8.1:
   version "0.8.1"
   resolved "https://registry.yarnpkg.com/snapdragon/-/snapdragon-0.8.1.tgz#e12b5487faded3e3dea0ac91e9400bf75b401370"
+  integrity sha1-4StUh/re0+PeoKyR6UAL91tAE3A=
   dependencies:
     base "^0.11.1"
     debug "^2.2.0"
@@ -6934,22 +8476,26 @@ snapdragon@^0.8.1:
 sntp@1.x.x:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/sntp/-/sntp-1.0.9.tgz#6541184cc90aeea6c6e7b35e2659082443c66198"
+  integrity sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg=
   dependencies:
     hoek "2.x.x"
 
 sntp@2.x.x:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/sntp/-/sntp-2.1.0.tgz#2c6cec14fedc2222739caf9b5c3d85d1cc5a2cc8"
+  integrity sha512-FL1b58BDrqS3A11lJ0zEdnJ3UOKqVxawAkF3k7F0CVN7VQ34aZrV+G8BZ1WC9ZL7NyrwsW0oviwsWDgRuVYtJg==
   dependencies:
     hoek "4.x.x"
 
 socket.io-adapter@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz#2a805e8a14d6372124dd9159ad4502f8cb07f06b"
+  integrity sha1-KoBeihTWNyEk3ZFZrUUC+MsH8Gs=
 
 socket.io-client@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.0.4.tgz#0918a552406dc5e540b380dcd97afc4a64332f8e"
+  integrity sha1-CRilUkBtxeVAs4Dc2Xr8SmQzL44=
   dependencies:
     backo2 "1.0.2"
     base64-arraybuffer "0.1.5"
@@ -6968,6 +8514,7 @@ socket.io-client@2.0.4:
 socket.io-parser@~3.1.1:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-3.1.3.tgz#ed2da5ee79f10955036e3da413bfd7f1e4d86c8e"
+  integrity sha512-g0a2HPqLguqAczs3dMECuA1RgoGFPyvDqcbaDEdCWY9g59kdUAz3YRmaJBNKXflrHNwB7Q12Gkf/0CZXfdHR7g==
   dependencies:
     component-emitter "1.2.1"
     debug "~3.1.0"
@@ -6977,6 +8524,7 @@ socket.io-parser@~3.1.1:
 socket.io@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.0.4.tgz#c1a4590ceff87ecf13c72652f046f716b29e6014"
+  integrity sha1-waRZDO/4fs8TxyZS8Eb3FrKeYBQ=
   dependencies:
     debug "~2.6.6"
     engine.io "~3.1.0"
@@ -6987,6 +8535,7 @@ socket.io@2.0.4:
 socks-proxy-agent@2:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/socks-proxy-agent/-/socks-proxy-agent-2.1.1.tgz#86ebb07193258637870e13b7bd99f26c663df3d3"
+  integrity sha512-sFtmYqdUK5dAMh85H0LEVFUCO7OhJJe1/z2x/Z6mxp3s7/QPf1RkZmpZy+BpuU0bEjcV9npqKjq9Y3kwFUjnxw==
   dependencies:
     agent-base "2"
     extend "3"
@@ -6995,6 +8544,7 @@ socks-proxy-agent@2:
 socks@1.1.9:
   version "1.1.9"
   resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.9.tgz#628d7e4d04912435445ac0b6e459376cb3e6d691"
+  integrity sha1-Yo1+TQSRJDVEWsC25Fk3bLPm1pE=
   dependencies:
     ip "^1.1.2"
     smart-buffer "^1.0.4"
@@ -7002,6 +8552,7 @@ socks@1.1.9:
 socks@~1.1.5:
   version "1.1.10"
   resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.10.tgz#5b8b7fc7c8f341c53ed056e929b7bf4de8ba7b5a"
+  integrity sha1-W4t/x8jzQcU+0FbpKbe/Tei6e1o=
   dependencies:
     ip "^1.1.4"
     smart-buffer "^1.0.13"
@@ -7009,10 +8560,12 @@ socks@~1.1.5:
 source-list-map@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.0.tgz#aaa47403f7b245a92fbc97ea08f250d6087ed085"
+  integrity sha512-I2UmuJSRr/T8jisiROLU3A3ltr+swpniSmNPI4Ml3ZCX6tVnDsuZzK7F2hl5jTqbZBWCEKlj5HRQiPExXLgE8A==
 
 source-map-resolve@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.3.1.tgz#610f6122a445b8dd51535a2a71b783dfc1248761"
+  integrity sha1-YQ9hIqRFuN1RU1oqcbeD38Ekh2E=
   dependencies:
     atob "~1.1.0"
     resolve-url "~0.2.1"
@@ -7022,6 +8575,7 @@ source-map-resolve@^0.3.0:
 source-map-resolve@^0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.1.tgz#7ad0f593f2281598e854df80f19aae4b92d7a11a"
+  integrity sha512-0KW2wvzfxm8NCTb30z0LMNyPqWCdDGE2viwzUaucqJdkTRXtZiSY3I+2A6nVAjmdOy0I4gU8DwnVVGsk9jvP2A==
   dependencies:
     atob "^2.0.0"
     decode-uri-component "^0.2.0"
@@ -7029,55 +8583,66 @@ source-map-resolve@^0.5.0:
     source-map-url "^0.4.0"
     urix "^0.1.0"
 
-source-map-support@^0.4.15:
-  version "0.4.18"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.4.18.tgz#0286a6de8be42641338594e97ccea75f0a2c585f"
-  dependencies:
-    source-map "^0.5.6"
-
 source-map-support@^0.5.0:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.3.tgz#2b3d5fff298cfa4d1afd7d4352d569e9a0158e76"
+  integrity sha512-eKkTgWYeBOQqFGXRfKabMFdnWepo51vWqEdoeikaEPFiJC7MCU5j2h4+6Q8npkZTeLGbSyecZvRxiSoWl3rh+w==
+  dependencies:
+    source-map "^0.6.0"
+
+source-map-support@^0.5.9:
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.9.tgz#41bc953b2534267ea2d605bccfa7bfa3111ced5f"
+  integrity sha512-gR6Rw4MvUlYy83vP0vxoVNzM6t8MUXqNuRsuBmBHQDu1Fh6X015FrLdgoDKcNdkwGubozq0P4N0Q37UyFVr1EA==
   dependencies:
+    buffer-from "^1.0.0"
     source-map "^0.6.0"
 
 source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
+  integrity sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=
 
 source-map-url@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.3.0.tgz#7ecaf13b57bcd09da8a40c5d269db33799d4aaf9"
+  integrity sha1-fsrxO1e80J2opAxdJp2zN5nUqvk=
 
 source-map@^0.1.38:
   version "0.1.43"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.43.tgz#c24bc146ca517c1471f5dacbe2571b2b7f9e3346"
+  integrity sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=
   dependencies:
     amdefine ">=0.0.4"
 
 source-map@^0.4.4:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
+  integrity sha1-66T12pwNyZneaAMti092FzZSA2s=
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.1, source-map@~0.5.3:
+source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
+  integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
 
 source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+  integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
 
 source-map@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
+  integrity sha1-2rc/vPwrqBm03gO9b26qSBZLP50=
   dependencies:
     amdefine ">=0.0.4"
 
 spawn-sync@^1.0.15:
   version "1.0.15"
   resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
+  integrity sha1-sAeZVX63+wyDdsKdROih6mfldHY=
   dependencies:
     concat-stream "^1.4.7"
     os-shim "^0.1.2"
@@ -7085,6 +8650,7 @@ spawn-sync@^1.0.15:
 spdx-correct@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.0.0.tgz#05a5b4d7153a195bc92c3c425b69f3b2a9524c82"
+  integrity sha512-N19o9z5cEyc8yQQPukRCZ9EUmb4HUpnrmaL/fxS2pBo2jbfcFRVuFZ/oFC+vZz0MNNk0h80iMn5/S6qGZOL5+g==
   dependencies:
     spdx-expression-parse "^3.0.0"
     spdx-license-ids "^3.0.0"
@@ -7092,10 +8658,12 @@ spdx-correct@^3.0.0:
 spdx-exceptions@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/spdx-exceptions/-/spdx-exceptions-2.1.0.tgz#2c7ae61056c714a5b9b9b2b2af7d311ef5c78fe9"
+  integrity sha512-4K1NsmrlCU1JJgUrtgEeTVyfx8VaYea9J9LvARxhbHtVtohPs/gFGG5yy49beySjlIMhhXZ4QqujIZEfS4l6Cg==
 
 spdx-expression-parse@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz#99e119b7a5da00e05491c9fa338b7904823b41d0"
+  integrity sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==
   dependencies:
     spdx-exceptions "^2.1.0"
     spdx-license-ids "^3.0.0"
@@ -7103,36 +8671,43 @@ spdx-expression-parse@^3.0.0:
 spdx-license-ids@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.0.tgz#7a7cd28470cc6d3a1cfe6d66886f6bc430d3ac87"
+  integrity sha512-2+EPwgbnmOIl8HjGBXXMd9NAu02vLjOO1nWw4kmeRDFyHn+M/ETfHxQUK0oXg8ctgVnl9t3rosNVsZ1jG61nDA==
 
 split-string@^3.0.1, split-string@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/split-string/-/split-string-3.1.0.tgz#7cb09dda3a86585705c64b39a6466038682e8fe2"
+  integrity sha512-NzNVhJDYpwceVVii8/Hu6DKfD2G+NrQHlS/V/qgv763EYudVwEcMQNxd2lh+0VrUByXN/oJkl5grOhYWvQUYiw==
   dependencies:
     extend-shallow "^3.0.0"
 
 split2@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/split2/-/split2-2.2.0.tgz#186b2575bcf83e85b7d18465756238ee4ee42493"
+  integrity sha512-RAb22TG39LhI31MbreBgIuKiIKhVsawfTgEGqKHTK87aG+ul/PB8Sqoi3I7kVdRWiCfrKxK3uo4/YUkpNvhPbw==
   dependencies:
     through2 "^2.0.2"
 
 split@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/split/-/split-1.0.1.tgz#605bd9be303aa59fb35f9229fbea0ddec9ea07d9"
+  integrity sha512-mTyOoPbrivtXnwnIxZRFYRrPNtEFKlpB2fvjSnCQUiAA6qAZzqwna5envK4uk6OIeP17CsdF3rSBGYVBsU0Tkg==
   dependencies:
     through "2"
 
 sprintf-js@^1.0.3:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.1.tgz#36be78320afe5801f6cea3ee78b6e5aab940ea0c"
+  integrity sha1-Nr54Mgr+WAH2zqPueLblqrlA6gw=
 
 sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
+  integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
 sshpk@^1.7.0:
   version "1.13.1"
   resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.13.1.tgz#512df6da6287144316dc4c18fe1cf1d940739be3"
+  integrity sha1-US322mKHFEMW3EwY/hzx2UBzm+M=
   dependencies:
     asn1 "~0.2.3"
     assert-plus "^1.0.0"
@@ -7147,14 +8722,17 @@ sshpk@^1.7.0:
 stack-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
+  integrity sha1-1PM6tU6OOHeLDKXP07OvsS22hiA=
 
 staged-git-files@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.0.tgz#1a9bb131c1885601023c7aaddd3d54c22142c526"
+  integrity sha1-GpuxMcGIVgECPHqt3T1UwiFCxSY=
 
 static-extend@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"
+  integrity sha1-YICcOcv/VTNyJv1eC1IPNB8ftcY=
   dependencies:
     define-property "^0.2.5"
     object-copy "^0.1.0"
@@ -7162,18 +8740,22 @@ static-extend@^0.1.1:
 "statuses@>= 1.3.1 < 2":
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
+  integrity sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew==
 
 statuses@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.3.1.tgz#faf51b9eb74aaef3b3acf4ad5f61abf24cb7b93e"
+  integrity sha1-+vUbnrdKrvOzrPStX2Gr8ky3uT4=
 
 stealthy-require@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
+  integrity sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks=
 
 stream-browserify@^2.0.0, stream-browserify@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
+  integrity sha1-ZiZu5fm9uZQKTkUUyvtDu3Hlyds=
   dependencies:
     inherits "~2.0.1"
     readable-stream "^2.0.2"
@@ -7181,6 +8763,7 @@ stream-browserify@^2.0.0, stream-browserify@^2.0.1:
 stream-combiner2@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/stream-combiner2/-/stream-combiner2-1.1.1.tgz#fb4d8a1420ea362764e21ad4780397bebcb41cbe"
+  integrity sha1-+02KFCDqNidk4hrUeAOXvry0HL4=
   dependencies:
     duplexer2 "~0.1.0"
     readable-stream "^2.0.2"
@@ -7188,6 +8771,7 @@ stream-combiner2@^1.1.1:
 stream-http@^2.0.0, stream-http@^2.7.2:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.8.0.tgz#fd86546dac9b1c91aff8fc5d287b98fafb41bc10"
+  integrity sha512-sZOFxI/5xw058XIRHl4dU3dZ+TTOIGJR78Dvo0oEAejIt4ou27k+3ne1zYmCV+v7UucbxIFQuOgnkTVHh8YPnw==
   dependencies:
     builtin-status-codes "^3.0.0"
     inherits "^2.0.1"
@@ -7198,6 +8782,7 @@ stream-http@^2.0.0, stream-http@^2.7.2:
 stream-splicer@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/stream-splicer/-/stream-splicer-2.0.0.tgz#1b63be438a133e4b671cc1935197600175910d83"
+  integrity sha1-G2O+Q4oTPktnHMGTUZdgAXWRDYM=
   dependencies:
     inherits "^2.0.1"
     readable-stream "^2.0.2"
@@ -7205,12 +8790,14 @@ stream-splicer@^2.0.0:
 stream-to-observable@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/stream-to-observable/-/stream-to-observable-0.2.0.tgz#59d6ea393d87c2c0ddac10aa0d561bc6ba6f0e10"
+  integrity sha1-WdbqOT2HwsDdrBCqDVYbxrpvDhA=
   dependencies:
     any-observable "^0.2.0"
 
 streamroller@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-0.7.0.tgz#a1d1b7cf83d39afb0d63049a5acbf93493bdf64b"
+  integrity sha512-WREzfy0r0zUqp3lGO096wRuUp7ho1X6uo/7DJfTlEi0Iv/4gT7YHqXDjKC2ioVGBZtE8QzsQD9nx1nIuoZ57jQ==
   dependencies:
     date-format "^1.2.0"
     debug "^3.1.0"
@@ -7220,6 +8807,7 @@ streamroller@^0.7.0:
 string-width@^1.0.1, string-width@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  integrity sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=
   dependencies:
     code-point-at "^1.0.0"
     is-fullwidth-code-point "^1.0.0"
@@ -7228,6 +8816,7 @@ string-width@^1.0.1, string-width@^1.0.2:
 string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
+  integrity sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==
   dependencies:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
@@ -7235,22 +8824,26 @@ string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
 string_decoder@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.0.tgz#384f322ee8a848e500effde99901bba849c5d403"
+  integrity sha512-8zQpRF6juocE69ae7CSPmYEGJe4VCXwP6S6dxUWI7i53Gwv54/ec41fiUA+X7BPGGv7fRSQJjBQVa0gomGaOgg==
   dependencies:
     safe-buffer "~5.1.0"
 
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
+  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
 
 string_decoder@~1.0.0, string_decoder@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.3.tgz#0fc67d7c141825de94282dd536bec6b9bce860ab"
+  integrity sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==
   dependencies:
     safe-buffer "~5.1.0"
 
 stringify-object@^3.2.2:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/stringify-object/-/stringify-object-3.2.2.tgz#9853052e5a88fb605a44cd27445aa257ad7ffbcd"
+  integrity sha512-O696NF21oLiDy8PhpWu8AEqoZHw++QW6mUv0UvKZe8gWSdSvMXkiLufK7OmnP27Dro4GU5kb9U7JIO0mBuCRQg==
   dependencies:
     get-own-enumerable-property-symbols "^2.0.1"
     is-obj "^1.0.1"
@@ -7259,102 +8852,122 @@ stringify-object@^3.2.2:
 stringstream@~0.0.4, stringstream@~0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
+  integrity sha1-TkhM1N5aC7vuGORjB3EKioFiGHg=
 
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  integrity sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=
   dependencies:
     ansi-regex "^2.0.0"
 
 strip-ansi@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
+  integrity sha1-qEeQIusaw2iocTibY1JixQXuNo8=
   dependencies:
     ansi-regex "^3.0.0"
 
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
+  integrity sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=
   dependencies:
     is-utf8 "^0.2.0"
 
 strip-bom@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
+  integrity sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=
 
 strip-eof@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
+  integrity sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=
 
 strip-indent@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-1.0.1.tgz#0c7962a6adefa7bbd4ac366460a638552ae1a0a2"
+  integrity sha1-DHlipq3vp7vUrDZkYKY4VSrhoKI=
   dependencies:
     get-stdin "^4.0.1"
 
 strip-indent@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-2.0.0.tgz#5ef8db295d01e6ed6cbf7aab96998d7822527b68"
+  integrity sha1-XvjbKV0B5u1sv3qrlpmNeCJSe2g=
 
 strip-json-comments@2.0.1, strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
+  integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
 
 subarg@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"
+  integrity sha1-9izxdYHplrSPyWVpn1TAauJouNI=
   dependencies:
     minimist "^1.1.0"
 
 supports-color@3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.1.2.tgz#72a262894d9d408b956ca05ff37b2ed8a6e2a2d5"
+  integrity sha1-cqJiiU2dQIuVbKBf83su2KbiotU=
   dependencies:
     has-flag "^1.0.0"
 
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
+  integrity sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=
 
 supports-color@^3.1.0:
   version "3.2.3"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.2.3.tgz#65ac0504b3954171d8a64946b2ae3cbb8a5f54f6"
+  integrity sha1-ZawFBLOVQXHYpklGsq48u4pfVPY=
   dependencies:
     has-flag "^1.0.0"
 
 supports-color@^4.2.1:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
+  integrity sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=
   dependencies:
     has-flag "^2.0.0"
 
 supports-color@^5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.3.0.tgz#5b24ac15db80fa927cf5227a4a33fd3c4c7676c0"
+  integrity sha512-0aP01LLIskjKs3lq52EC0aGBAJhLq7B2Rd8HC/DR/PtNNpcLilNmHC12O+hu0usQpo7wtHNRqtrhBwtDb0+dNg==
   dependencies:
     has-flag "^3.0.0"
 
 symbol-observable@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
+  integrity sha1-g0D8RwLDEi310iKI+IKD9RPT/dQ=
 
 symbol-observable@^0.2.2:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-0.2.4.tgz#95a83db26186d6af7e7a18dbd9760a2f86d08f40"
+  integrity sha1-lag9smGG1q9+ehjb2XYKL4bQj0A=
 
 symbol-tree@^3.2.2:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
+  integrity sha1-rifbOPZgp64uHDt9G8KQgZuFGeY=
 
 syntax-error@^1.1.1:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/syntax-error/-/syntax-error-1.4.0.tgz#2d9d4ff5c064acb711594a3e3b95054ad51d907c"
+  integrity sha512-YPPlu67mdnHGTup2A8ff7BC2Pjq0e0Yp/IyTFN03zWO0RcK07uLcbi7C2KpGR2FvWbaB0+bfE27a+sBKebSo7w==
   dependencies:
     acorn-node "^1.2.0"
 
 table@4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
+  integrity sha512-UUkEAPdSGxtRpiV9ozJ5cMTtYiqz7Ni1OGqLXRCynrvzdtR1p+cfOWe2RJLwvUG8hNanaSRjecIqwOjqeatDsA==
   dependencies:
     ajv "^5.2.3"
     ajv-keywords "^2.1.0"
@@ -7366,10 +8979,12 @@ table@4.0.2:
 tapable@^0.2.7:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
+  integrity sha1-mTcqXJmb8t8WCvwNdL7U9HlIzSI=
 
 tar-pack@^3.4.0:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
+  integrity sha512-PPRybI9+jM5tjtCbN2cxmmRU7YmqT3Zv/UDy48tAh2XRkLa9bAORtSWLkVc13+GJF+cdTh1yEnHEk3cpTaL5Kg==
   dependencies:
     debug "^2.2.0"
     fstream "^1.0.10"
@@ -7383,6 +8998,7 @@ tar-pack@^3.4.0:
 tar-stream@^1.5.0:
   version "1.5.5"
   resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.5.5.tgz#5cad84779f45c83b1f2508d96b09d88c7218af55"
+  integrity sha512-mQdgLPc/Vjfr3VWqWbfxW8yQNiJCbAZ+Gf6GDu1Cy0bdb33ofyiNGBtAY96jHFhDuivCwgW1H9DgTON+INiXgg==
   dependencies:
     bl "^1.0.0"
     end-of-stream "^1.0.0"
@@ -7392,36 +9008,41 @@ tar-stream@^1.5.0:
 tar@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
+  integrity sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=
   dependencies:
     block-stream "*"
     fstream "^1.0.2"
     inherits "2"
 
-test-exclude@^4.1.1:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.2.0.tgz#07e3613609a362c74516a717515e13322ab45b3c"
+test-exclude@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.0.0.tgz#cdce7cece785e0e829cd5c2b27baf18bc583cfb7"
+  integrity sha512-bO3Lj5+qFa9YLfYW2ZcXMOV1pmQvw+KS/DpjqhyX6Y6UZ8zstpZJ+mA2ERkXfpOqhxsJlQiLeVXD3Smsrs6oLw==
   dependencies:
     arrify "^1.0.1"
-    micromatch "^2.3.11"
-    object-assign "^4.1.0"
-    read-pkg-up "^1.0.1"
+    minimatch "^3.0.4"
+    read-pkg-up "^4.0.0"
     require-main-filename "^1.0.1"
 
 text-extensions@^1.0.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.7.0.tgz#faaaba2625ed746d568a23e4d0aacd9bf08a8b39"
+  integrity sha512-AKXZeDq230UaSzaO5s3qQUZOaC7iKbzq0jOFL614R7d9R593HLqAOL0cYoqLdkNrjBSOdmoQI06yigq1TSBXAg==
 
 text-table@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
+  integrity sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=
 
 throttleit@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/throttleit/-/throttleit-1.0.0.tgz#9e785836daf46743145a5984b6268d828528ac6c"
+  integrity sha1-nnhYNtr0Z0MUWlmEtiaNgoUorGw=
 
 through2@^2.0.0, through2@^2.0.2:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
+  integrity sha1-AARWmzfHx0ujnEPzzteNGtlBQL4=
   dependencies:
     readable-stream "^2.1.5"
     xtend "~4.0.1"
@@ -7429,68 +9050,82 @@ through2@^2.0.0, through2@^2.0.2:
 through@2, "through@>=2.2.7 <3", through@^2.3.6:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+  integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
 
 thunkify@~2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/thunkify/-/thunkify-2.1.2.tgz#faa0e9d230c51acc95ca13a361ac05ca7e04553d"
+  integrity sha1-+qDp0jDFGsyVyhOjYawFyn4EVT0=
 
 time-stamp@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.0.0.tgz#95c6a44530e15ba8d6f4a3ecb8c3a3fac46da357"
+  integrity sha1-lcakRTDhW6jW9KPsuMOj+sRto1c=
 
 timers-browserify@^1.0.1:
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-1.4.2.tgz#c9c58b575be8407375cb5e2462dacee74359f41d"
+  integrity sha1-ycWLV1voQHN1y14kYtrO50NZ9B0=
   dependencies:
     process "~0.11.0"
 
 timers-browserify@^2.0.4:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-2.0.6.tgz#241e76927d9ca05f4d959819022f5b3664b64bae"
+  integrity sha512-HQ3nbYRAowdVd0ckGFvmJPPCOH/CHleFN/Y0YQCX1DVaB7t+KFvisuyN09fuP8Jtp1CpfSh8O8bMkHbdbPe6Pw==
   dependencies:
     setimmediate "^1.0.4"
 
 timespan@2.3.x:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/timespan/-/timespan-2.3.0.tgz#4902ce040bd13d845c8f59b27e9d59bad6f39929"
+  integrity sha1-SQLOBAvRPYRcj1myfp1ZutbzmSk=
 
 tmp@0.0.33, tmp@0.0.x, tmp@^0.0.33:
   version "0.0.33"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
+  integrity sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==
   dependencies:
     os-tmpdir "~1.0.2"
 
 tmp@^0.0.29:
   version "0.0.29"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.29.tgz#f25125ff0dd9da3ccb0c2dd371ee1288bb9128c0"
+  integrity sha1-8lEl/w3Z2jzLDC3Tce4SiLuRKMA=
   dependencies:
     os-tmpdir "~1.0.1"
 
 to-array@0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.4.tgz#17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890"
+  integrity sha1-F+bBH3PdTz10zaek/zI46a2b+JA=
 
 to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
+  integrity sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M=
 
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
+  integrity sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=
 
 to-fast-properties@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
+  integrity sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=
 
 to-object-path@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
+  integrity sha1-KXWIt7Dn4KwI4E5nL4XB9JmeF68=
   dependencies:
     kind-of "^3.0.2"
 
 to-regex-range@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-2.1.1.tgz#7c80c17b9dfebe599e27367e0d4dd5590141db38"
+  integrity sha1-fIDBe53+vlmeJzZ+DU3VWQFB2zg=
   dependencies:
     is-number "^3.0.0"
     repeat-string "^1.6.1"
@@ -7498,6 +9133,7 @@ to-regex-range@^2.1.0:
 to-regex@^3.0.1:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/to-regex/-/to-regex-3.0.2.tgz#13cfdd9b336552f30b51f33a8ae1b42a7a7599ce"
+  integrity sha512-FWtleNAtZ/Ki2qtqej2CXTOayOH9bHDQF+Q48VpWyDXjbYxA4Yz8iDB31zXOBUlOHHKidDbqGVrTUvQMPmBGBw==
   dependencies:
     define-property "^2.0.2"
     extend-shallow "^3.0.2"
@@ -7507,12 +9143,14 @@ to-regex@^3.0.1:
 tough-cookie@>=2.3.3, tough-cookie@^2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
+  integrity sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==
   dependencies:
     punycode "^1.4.1"
 
 tough-cookie@~2.4.3:
   version "2.4.3"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
+  integrity sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==
   dependencies:
     psl "^1.1.24"
     punycode "^1.4.1"
@@ -7520,64 +9158,78 @@ tough-cookie@~2.4.3:
 tr46@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/tr46/-/tr46-1.0.1.tgz#a8b13fd6bfd2489519674ccde55ba3693b706d09"
+  integrity sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=
   dependencies:
     punycode "^2.1.0"
 
 trim-newlines@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
+  integrity sha1-WIeWa7WCpFA6QetST301ARgVphM=
 
 trim-newlines@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-2.0.0.tgz#b403d0b91be50c331dfc4b82eeceb22c3de16d20"
+  integrity sha1-tAPQuRvlDDMd/EuC7s6yLD3hbSA=
 
 trim-off-newlines@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-off-newlines/-/trim-off-newlines-1.0.1.tgz#9f9ba9d9efa8764c387698bcbfeb2c848f11adb3"
+  integrity sha1-n5up2e+odkw4dpi8v+sshI8RrbM=
 
 trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
+  integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
 
 tsscmp@~1.0.0:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.5.tgz#7dc4a33af71581ab4337da91d85ca5427ebd9a97"
+  integrity sha1-fcSjOvcVgatDN9qR2FylQn69mpc=
 
 tty-browserify@0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
+  integrity sha1-oVe6QC2iTpv5V/mqadUk7tQpAaY=
 
 tty-browserify@~0.0.0:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.1.tgz#3f05251ee17904dfd0677546670db9651682b811"
+  integrity sha512-C3TaO7K81YvjCgQH9Q1S3R3P3BtN3RIM8n+OvX4il1K1zgE8ZhI0op7kClgkxtutIE8hQrcrHBXvIheqKUUCxw==
 
 tunnel-agent@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
+  integrity sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=
   dependencies:
     safe-buffer "^5.0.1"
 
 tunnel-agent@~0.4.1:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
+  integrity sha1-Y3PbdpCf5XDgjXNYM2Xtgop07us=
 
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
+  integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
 type-check@~0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
+  integrity sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=
   dependencies:
     prelude-ls "~1.1.2"
 
 type-detect@0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-0.1.1.tgz#0ba5ec2a885640e470ea4e8505971900dac58822"
+  integrity sha1-C6XsKohWQORw6k6FBZcZANrFiCI=
 
 type-is@~1.6.15:
   version "1.6.16"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.16.tgz#f89ce341541c672b25ee7ae3c73dee3b2be50194"
+  integrity sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==
   dependencies:
     media-typer "0.3.0"
     mime-types "~2.1.18"
@@ -7585,14 +9237,17 @@ type-is@~1.6.15:
 typedarray@^0.0.6, typedarray@~0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
+  integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
 typescript@^2.7.1:
   version "2.7.2"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.7.2.tgz#2d615a1ef4aee4f574425cdff7026edf81919836"
+  integrity sha512-p5TCYZDAO0m4G344hD+wx/LATebLWZNkkh2asWUFqSsD2OrDNhbAHuSjobrmsUmdzjJjEeZVU9g1h3O6vpstnw==
 
 uglify-js@^2.6, uglify-js@^2.8.29:
   version "2.8.29"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
+  integrity sha1-KcVzMUgFe7Th913zW3qcty5qWd0=
   dependencies:
     source-map "~0.5.1"
     yargs "~3.10.0"
@@ -7602,6 +9257,7 @@ uglify-js@^2.6, uglify-js@^2.8.29:
 uglify-js@^3.0.15:
   version "3.3.13"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.3.13.tgz#8a1a89eeb16e2d6a66b0db2b04cb871af3c669cf"
+  integrity sha512-7rdn/bDOG1ElSTPdh7AI5TCjLv63ZD4k8BBadN3ssIkhlaQL2c0yRxmXCyOYhZK0wZTgGgUSnYQ4CGu+Jos5cA==
   dependencies:
     commander "~2.14.1"
     source-map "~0.6.1"
@@ -7609,10 +9265,12 @@ uglify-js@^3.0.15:
 uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
+  integrity sha1-bgkk1r2mta/jSeOabWMoUKD4grc=
 
 uglifyjs-webpack-plugin@^0.4.6:
   version "0.4.6"
   resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-0.4.6.tgz#b951f4abb6bd617e66f63eb891498e391763e309"
+  integrity sha1-uVH0q7a9YX5m9j64kUmOORdj4wk=
   dependencies:
     source-map "^0.5.6"
     uglify-js "^2.8.29"
@@ -7621,18 +9279,22 @@ uglifyjs-webpack-plugin@^0.4.6:
 uid-number@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
+  integrity sha1-DqEOgDXo61uOREnwbaHHMGY7qoE=
 
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
+  integrity sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==
 
 umd@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/umd/-/umd-3.0.1.tgz#8ae556e11011f63c2596708a8837259f01b3d60e"
+  integrity sha1-iuVW4RAR9jwllnCKiDclnwGz1g4=
 
 underscore.string@3.3.4:
   version "3.3.4"
   resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.4.tgz#2c2a3f9f83e64762fdc45e6ceac65142864213db"
+  integrity sha1-LCo/n4PmR2L9xF5s6sZRQoZCE9s=
   dependencies:
     sprintf-js "^1.0.3"
     util-deprecate "^1.0.2"
@@ -7640,10 +9302,35 @@ underscore.string@3.3.4:
 underscore@~1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.7.0.tgz#6bbaf0877500d36be34ecaa584e0db9fef035209"
+  integrity sha1-a7rwh3UA02vjTsqlhODbn+8DUgk=
+
+unicode-canonical-property-names-ecmascript@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz#2619800c4c825800efdd8343af7dd9933cbe2818"
+  integrity sha512-jDrNnXWHd4oHiTZnx/ZG7gtUTVp+gCcTTKr8L0HjlwphROEW3+Him+IpvC+xcJEFegapiMZyZe02CyuOnRmbnQ==
+
+unicode-match-property-ecmascript@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/unicode-match-property-ecmascript/-/unicode-match-property-ecmascript-1.0.4.tgz#8ed2a32569961bce9227d09cd3ffbb8fed5f020c"
+  integrity sha512-L4Qoh15vTfntsn4P1zqnHulG0LdXgjSO035fEpdtp6YxXhMT51Q6vgM5lYdG/5X3MjS+k/Y9Xw4SFCY9IkR0rg==
+  dependencies:
+    unicode-canonical-property-names-ecmascript "^1.0.4"
+    unicode-property-aliases-ecmascript "^1.0.4"
+
+unicode-match-property-value-ecmascript@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/unicode-match-property-value-ecmascript/-/unicode-match-property-value-ecmascript-1.0.2.tgz#9f1dc76926d6ccf452310564fd834ace059663d4"
+  integrity sha512-Rx7yODZC1L/T8XKo/2kNzVAQaRE88AaMvI1EF/Xnj3GW2wzN6fop9DDWuFAKUVFH7vozkz26DzP0qyWLKLIVPQ==
+
+unicode-property-aliases-ecmascript@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/unicode-property-aliases-ecmascript/-/unicode-property-aliases-ecmascript-1.0.4.tgz#5a533f31b4317ea76f17d807fa0d116546111dd0"
+  integrity sha512-2WSLa6OdYd2ng8oqiGIWnJqyFArvhn+5vgx5GTxMbUYjCYKUcuKS62YLFF0R/BDGlB1yzXjQOLtPAfHsgirEpg==
 
 union-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
+  integrity sha1-XHHDTLW61dzr4+oM0IIHulqhrqQ=
   dependencies:
     arr-union "^3.1.0"
     get-value "^2.0.6"
@@ -7653,16 +9340,19 @@ union-value@^1.0.0:
 union@~0.4.3:
   version "0.4.6"
   resolved "https://registry.yarnpkg.com/union/-/union-0.4.6.tgz#198fbdaeba254e788b0efcb630bc11f24a2959e0"
+  integrity sha1-GY+9rrolTniLDvy2MLwR8kopWeA=
   dependencies:
     qs "~2.3.3"
 
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
+  integrity sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=
 
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
+  integrity sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=
   dependencies:
     has-value "^0.3.1"
     isobject "^3.0.0"
@@ -7670,18 +9360,22 @@ unset-value@^1.0.0:
 upath@^1.0.0:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/upath/-/upath-1.0.4.tgz#ee2321ba0a786c50973db043a50b7bcba822361d"
+  integrity sha512-d4SJySNBXDaQp+DPrziv3xGS6w3d2Xt69FijJr86zMPBy23JEloMCEOUBBzuN7xCtjLCnmB9tI/z7SBCahHBOw==
 
 urix@^0.1.0, urix@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
+  integrity sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=
 
 url-join@^2.0.2:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
+  integrity sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=
 
 url@^0.11.0, url@~0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
+  integrity sha1-ODjpfPxgUh63PFJajlW/3Z4uKPE=
   dependencies:
     punycode "1.3.2"
     querystring "0.2.0"
@@ -7689,10 +9383,12 @@ url@^0.11.0, url@~0.11.0:
 urlgrey@^0.4.4:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/urlgrey/-/urlgrey-0.4.4.tgz#892fe95960805e85519f1cd4389f2cb4cbb7652f"
+  integrity sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8=
 
 use@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/use/-/use-2.0.2.tgz#ae28a0d72f93bf22422a18a2e379993112dec8e8"
+  integrity sha1-riig1y+TvyJCKhii43mZMRLeyOg=
   dependencies:
     define-property "^0.2.5"
     isobject "^3.0.0"
@@ -7701,6 +9397,7 @@ use@^2.0.0:
 useragent@^2.1.12:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/useragent/-/useragent-2.3.0.tgz#217f943ad540cb2128658ab23fc960f6a88c9972"
+  integrity sha512-4AoH4pxuSvHCjqLO04sU6U/uE65BYza8l/KKBS0b0hnUPWi+cQ2BpeTEwejCSx9SPV5/U03nniDTrWx5NrmKdw==
   dependencies:
     lru-cache "4.1.x"
     tmp "0.0.x"
@@ -7708,32 +9405,47 @@ useragent@^2.1.12:
 util-deprecate@^1.0.2, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
+  integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
+
+util.promisify@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.0.0.tgz#440f7165a459c9a16dc145eb8e72f35687097030"
+  integrity sha512-i+6qA2MPhvoKLuxnJNpXAGhg7HphQOSUq2LKMZD0m15EiskXUkMvKdF4Uui0WYeCUGea+o2cw/ZuwehtfsrNkA==
+  dependencies:
+    define-properties "^1.1.2"
+    object.getownpropertydescriptors "^2.0.3"
 
 util@0.10.3, util@^0.10.3, util@~0.10.1:
   version "0.10.3"
   resolved "https://registry.yarnpkg.com/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"
+  integrity sha1-evsa/lCAUkZInj23/g7TeTNqwPk=
   dependencies:
     inherits "2.0.1"
 
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+  integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
 uuid@^3.0.0, uuid@^3.1.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
+  integrity sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA==
 
 uuid@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
+  integrity sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==
 
 uws@~9.14.0:
   version "9.14.0"
   resolved "https://registry.yarnpkg.com/uws/-/uws-9.14.0.tgz#fac8386befc33a7a3705cbd58dc47b430ca4dd95"
+  integrity sha512-HNMztPP5A1sKuVFmdZ6BPVpBQd5bUjNC8EFMFiICK+oho/OQsAJy5hnIx4btMHiOk8j04f/DbIlqnEZ9d72dqg==
 
 validate-npm-package-license@^3.0.1:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz#81643bcbef1bdfecd4623793dc4648948ba98338"
+  integrity sha512-63ZOUnL4SIXj4L0NixR3L1lcjO38crAbgrTpl28t8jjrfuiOBL5Iygm+60qPs/KsZGzPNg6Smnc/oY16QTjF0g==
   dependencies:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
@@ -7741,10 +9453,12 @@ validate-npm-package-license@^3.0.1:
 vargs@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/vargs/-/vargs-0.1.0.tgz#6b6184da6520cc3204ce1b407cac26d92609ebff"
+  integrity sha1-a2GE2mUgzDIEzhtAfKwm2SYJ6/8=
 
 verror@1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
+  integrity sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=
   dependencies:
     assert-plus "^1.0.0"
     core-util-is "1.0.2"
@@ -7753,34 +9467,41 @@ verror@1.10.0:
 vlq@^0.2.1:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/vlq/-/vlq-0.2.3.tgz#8f3e4328cf63b1540c0d67e1b2778386f8975b26"
+  integrity sha512-DRibZL6DsNhIgYQ+wNdWDL2SL3bKPlVrRiBqV5yuMm++op8W4kGFtaQfCs4KEJn0wBZcHVHJ3eoywX8983k1ow==
 
 vlq@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/vlq/-/vlq-1.0.0.tgz#8101be90843422954c2b13eb27f2f3122bdcc806"
+  integrity sha512-o3WmXySo+oI5thgqr7Qy8uBkT/v9Zr+sRyrh1lr8aWPUkgDWdWt4Nae2WKBrLsocgE8BuWWD0jLc+VW8LeU+2g==
 
 vm-browserify@0.0.4, vm-browserify@~0.0.1:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
+  integrity sha1-XX6kW7755Kb/ZflUOOCofDV9WnM=
   dependencies:
     indexof "0.0.1"
 
 void-elements@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
+  integrity sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=
 
 w3c-hr-time@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz#82ac2bff63d950ea9e3189a58a65625fedf19045"
+  integrity sha1-gqwr/2PZUOqeMYmlimViX+3xkEU=
   dependencies:
     browser-process-hrtime "^0.1.2"
 
 walkdir@^0.0.11:
   version "0.0.11"
   resolved "https://registry.yarnpkg.com/walkdir/-/walkdir-0.0.11.tgz#a16d025eb931bd03b52f308caed0f40fcebe9532"
+  integrity sha1-oW0CXrkxvQO1LzCMrtD0D86+lTI=
 
 watchpack@^1.4.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.5.0.tgz#231e783af830a22f8966f65c4c4bacc814072eed"
+  integrity sha512-RSlipNQB1u48cq0wH/BNfCu1tD/cJ8ydFIkNYhp9o+3d+8unClkIovpW5qpFPgmL9OE48wfAnlZydXByWP82AA==
   dependencies:
     chokidar "^2.0.2"
     graceful-fs "^4.1.2"
@@ -7789,6 +9510,7 @@ watchpack@^1.4.0:
 wd@^1.4.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/wd/-/wd-1.6.0.tgz#29f6de1531302a0c553478eeff16ae1e1639b472"
+  integrity sha512-q+oGQp7e/Xa5Yw2aaCJ2k56yL3pqpTkQOSJTgs9SAbUDIOASDsyhuxuZQ+QbOBnXoWrKosrxwZqfM0VUsqlDyg==
   dependencies:
     archiver "1.3.0"
     async "2.0.1"
@@ -7802,10 +9524,12 @@ wd@^1.4.0:
 webidl-conversions@^4.0.1, webidl-conversions@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
+  integrity sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==
 
 webpack-dev-middleware@^1.12.0:
   version "1.12.2"
   resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz#f8fc1120ce3b4fc5680ceecb43d777966b21105e"
+  integrity sha512-FCrqPy1yy/sN6U/SaEZcHKRXGlqU0DUaEBL45jkUYoB8foVb6wCnbIJ1HKIx+qUFTW+3JpVcCJCxZ8VATL4e+A==
   dependencies:
     memory-fs "~0.4.1"
     mime "^1.5.0"
@@ -7816,6 +9540,7 @@ webpack-dev-middleware@^1.12.0:
 webpack-sources@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
+  integrity sha512-aqYp18kPphgoO5c/+NaUvEeACtZjMESmDChuD3NBciVpah3XpMEU9VAAtIaB1BsfJWWTSdv8Vv1m3T0aRk2dUw==
   dependencies:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
@@ -7823,6 +9548,7 @@ webpack-sources@^1.0.1:
 webpack@^3.11.0:
   version "3.11.0"
   resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.11.0.tgz#77da451b1d7b4b117adaf41a1a93b5742f24d894"
+  integrity sha512-3kOFejWqj5ISpJk4Qj/V7w98h9Vl52wak3CLiw/cDOfbVTq7FeoZ0SdoHHY9PYlHr50ZS42OfvzE2vB4nncKQg==
   dependencies:
     acorn "^5.0.0"
     acorn-dynamic-import "^2.0.0"
@@ -7850,22 +9576,26 @@ webpack@^3.11.0:
 weex-js-runtime@^0.23.6:
   version "0.23.7"
   resolved "https://registry.yarnpkg.com/weex-js-runtime/-/weex-js-runtime-0.23.7.tgz#c9d3427f2debf1d638ab4e41bb4f0e539a51915c"
+  integrity sha512-3BFd5GXTo0X/GWh0KjzXDpIcPJuSwYuc9fE9llgez35IfVHs/nUmfkFBjifzxOJS2YLhtKf0Cy8eTQ00CJDWZA==
 
 weex-styler@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/weex-styler/-/weex-styler-0.3.0.tgz#5d614c9cf6d8cec0e23231a92955b722556bfe1a"
+  integrity sha512-+zVcQO27iIh5rwGwvpbJKsFN3rciRRiRwXZDYRvzoHBzooCvtCf3tj0FtMtz9v1Z0IlGn/WH3m/Y0SocUdO/jQ==
   dependencies:
     css "~2.2.1"
 
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz#57c235bc8657e914d24e1a397d3c82daee0a6ba3"
+  integrity sha512-jLBwwKUhi8WtBfsMQlL4bUUcT8sMkAtQinscJAe/M4KHCkHuUJAF6vuB0tueNIw4c8ziO6AkRmgY+jL3a0iiPw==
   dependencies:
     iconv-lite "0.4.19"
 
 whatwg-url@^6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-6.4.0.tgz#08fdf2b9e872783a7a1f6216260a1d66cc722e08"
+  integrity sha512-Z0CVh/YE217Foyb488eo+iBv+r7eAQ0wSTyApi9n06jhcA3z6Nidg/EGvl0UFkg7kMdKxfBzzr+o9JF+cevgMg==
   dependencies:
     lodash.sortby "^4.7.0"
     tr46 "^1.0.0"
@@ -7874,46 +9604,56 @@ whatwg-url@^6.4.0:
 when@^3.7.7:
   version "3.7.8"
   resolved "https://registry.yarnpkg.com/when/-/when-3.7.8.tgz#c7130b6a7ea04693e842cdc9e7a1f2aa39a39f82"
+  integrity sha1-xxMLan6gRpPoQs3J56Hyqjmjn4I=
 
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
+  integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
 which@^1.1.1, which@^1.2.1, which@^1.2.10, which@^1.2.12, which@^1.2.9:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
+  integrity sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==
   dependencies:
     isexe "^2.0.0"
 
 wide-align@^1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
+  integrity sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==
   dependencies:
     string-width "^1.0.2"
 
 window-size@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
+  integrity sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=
 
 word-wrap@^1.0.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
+  integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
 wordwrap@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
+  integrity sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=
 
 wordwrap@^1.0.0, wordwrap@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
 
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
+  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
 
 wrap-ansi@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  integrity sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=
   dependencies:
     string-width "^1.0.1"
     strip-ansi "^3.0.1"
@@ -7921,16 +9661,19 @@ wrap-ansi@^2.0.0:
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
+  integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
 
 write@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
+  integrity sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=
   dependencies:
     mkdirp "^0.5.1"
 
 ws@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/ws/-/ws-4.1.0.tgz#a979b5d7d4da68bf54efe0408967c324869a7289"
+  integrity sha512-ZGh/8kF9rrRNffkLFV4AzhvooEclrOH0xaugmqGsIfFgOE/pIz4fMc4Ef+5HSQqTEug2S9JZIWDR47duDSLfaA==
   dependencies:
     async-limiter "~1.0.0"
     safe-buffer "~5.1.0"
@@ -7938,6 +9681,7 @@ ws@^4.0.0:
 ws@~3.3.1:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
+  integrity sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==
   dependencies:
     async-limiter "~1.0.0"
     safe-buffer "~5.1.0"
@@ -7946,36 +9690,44 @@ ws@~3.3.1:
 xml-name-validator@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
+  integrity sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==
 
 xmlhttprequest-ssl@~1.5.4:
   version "1.5.5"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz#c2876b06168aadc40e57d97e81191ac8f4398b3e"
+  integrity sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=
 
 xregexp@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-2.0.0.tgz#52a63e56ca0b84a7f3a5f3d61872f126ad7a5943"
+  integrity sha1-UqY+VsoLhKfzpfPWGHLxJq16WUM=
 
 xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
+  integrity sha1-pcbVMr5lbiPbgg77lDofBJmNY68=
 
 y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+  integrity sha1-bRX7qITAhnnA136I53WegR4H+kE=
 
 yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
+  integrity sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=
 
 yargs-parser@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
+  integrity sha1-jQrELxbqVd69MyyvTEA4s+P139k=
   dependencies:
     camelcase "^4.1.0"
 
 yargs@^8.0.2:
   version "8.0.2"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
+  integrity sha1-YpmpBVsc78lp/355wdkY3Osiw2A=
   dependencies:
     camelcase "^4.1.0"
     cliui "^3.2.0"
@@ -7994,6 +9746,7 @@ yargs@^8.0.2:
 yargs@~3.10.0:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
+  integrity sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=
   dependencies:
     camelcase "^1.0.2"
     cliui "^2.1.0"
@@ -8003,16 +9756,19 @@ yargs@~3.10.0:
 yauzl@2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"
+  integrity sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=
   dependencies:
     fd-slicer "~1.0.1"
 
 yeast@0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
+  integrity sha1-AI4G2AlDIMNy28L47XagymyKxBk=
 
 yorkie@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/yorkie/-/yorkie-1.0.3.tgz#5c05db48c012def99c29b79685b6ba2e40c8c671"
+  integrity sha512-D6MU1N72vv/as9VvDBS8syz8FS9gDPUwP6ILp/vU/PYnTdHrK4qeC7qNabc/CrEtI4mNpWX2dxVvzktQBh8BAA==
   dependencies:
     execa "^0.8.0"
     is-ci "^1.0.10"
@@ -8022,6 +9778,7 @@ yorkie@^1.0.1:
 zip-stream@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04"
+  integrity sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=
   dependencies:
     archiver-utils "^1.3.0"
     compress-commons "^1.2.0"

From b273bf7a95a2309398dfa9e27a7cd81d94312c92 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 23 Oct 2018 18:45:59 -0400
Subject: [PATCH 528/911] build: upgrade rollup

---
 package.json |    5 +-
 yarn.lock    | 3568 ++++++++++++++++++++------------------------------
 2 files changed, 1422 insertions(+), 2151 deletions(-)

diff --git a/package.json b/package.json
index 3a255055fb9..2249122f114 100644
--- a/package.json
+++ b/package.json
@@ -126,15 +126,14 @@
     "nightwatch-helpers": "^1.2.0",
     "phantomjs-prebuilt": "^2.1.14",
     "resolve": "^1.3.3",
-    "rollup": "^0.54.1",
+    "rollup": "^0.66.6",
     "rollup-plugin-alias": "^1.3.1",
     "rollup-plugin-babel": "^4.0.1",
     "rollup-plugin-buble": "^0.19.2",
-    "rollup-plugin-commonjs": "^8.0.0",
+    "rollup-plugin-commonjs": "^9.2.0",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
     "rollup-plugin-node-resolve": "^3.0.0",
     "rollup-plugin-replace": "^2.0.0",
-    "rollup-watch": "^4.0.0",
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
     "shelljs": "^0.8.1",
diff --git a/yarn.lock b/yarn.lock
index 03065adc728..14395f0e638 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,12 +2,12 @@
 # yarn lockfile v1
 
 
-"@babel/code-frame@7.0.0-beta.40", "@babel/code-frame@^7.0.0-beta.35", "@babel/code-frame@^7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-beta.40.tgz#37e2b0cf7c56026b4b21d3927cadf81adec32ac6"
-  integrity sha512-eVXQSbu/RimU6OKcK2/gDJVTFcxXJI4sHbIqw2mhwMZeQ2as/8AhS9DGkEDoHMBBNJZ5B0US63lF56x+KDcxiA==
+"@babel/code-frame@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-beta.44.tgz#2a02643368de80916162be70865c97774f3adbd9"
+  integrity sha512-cuAuTTIQ9RqcFRJ/Y8PvTh+paepNcaGxwQwjIDRWPXmzzyAeCO4KqS9ikMvq0MCbRk6GlYKwfzStrcP3/jSL8g==
   dependencies:
-    "@babel/highlight" "7.0.0-beta.40"
+    "@babel/highlight" "7.0.0-beta.44"
 
 "@babel/code-frame@^7.0.0":
   version "7.0.0"
@@ -36,12 +36,12 @@
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/generator@7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.0.0-beta.40.tgz#ab61f9556f4f71dbd1138949c795bb9a21e302ea"
-  integrity sha512-c91BQcXyTq/5aFV4afgOionxZS1dxWt8OghEx5Q52SKssdGRFSiMKnk9tGkev1pYULPJBqjSDZU2Pcuc58ffZw==
+"@babel/generator@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.0.0-beta.44.tgz#c7e67b9b5284afcf69b309b50d7d37f3e5033d42"
+  integrity sha512-5xVb7hlhjGcdkKpMXgicAVgx8syK5VJz193k0i/0sLP6DzE6lRrU1K3B/rFefgdo9LPGMAOOOAWW4jycj07ShQ==
   dependencies:
-    "@babel/types" "7.0.0-beta.40"
+    "@babel/types" "7.0.0-beta.44"
     jsesc "^2.5.1"
     lodash "^4.2.0"
     source-map "^0.5.0"
@@ -99,14 +99,14 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.0.0"
 
-"@babel/helper-function-name@7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.40.tgz#9d033341ab16517f40d43a73f2d81fc431ccd7b6"
-  integrity sha512-cK9BVLtOfisSISTTHXKGvBc2OBh65tjEk4PgXhsSnnH0i8RP2v+5RCxoSlh2y/i+l2fxQqKqv++Qo5RMiwmRCA==
+"@babel/helper-function-name@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.44.tgz#e18552aaae2231100a6e485e03854bc3532d44dd"
+  integrity sha512-MHRG2qZMKMFaBavX0LWpfZ2e+hLloT++N7rfM3DYOMUOGCD8cVjqZpwiL8a0bOX3IYcQev1ruciT0gdFFRTxzg==
   dependencies:
-    "@babel/helper-get-function-arity" "7.0.0-beta.40"
-    "@babel/template" "7.0.0-beta.40"
-    "@babel/types" "7.0.0-beta.40"
+    "@babel/helper-get-function-arity" "7.0.0-beta.44"
+    "@babel/template" "7.0.0-beta.44"
+    "@babel/types" "7.0.0-beta.44"
 
 "@babel/helper-function-name@^7.1.0":
   version "7.1.0"
@@ -117,12 +117,12 @@
     "@babel/template" "^7.1.0"
     "@babel/types" "^7.0.0"
 
-"@babel/helper-get-function-arity@7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.40.tgz#ac0419cf067b0ec16453e1274f03878195791c6e"
-  integrity sha512-MwquaPznI4cUoZEgHC/XGkddOXtqKqD4DvZDOyJK2LR9Qi6TbMbAhc6IaFoRX7CRTFCmtGeu8gdXW2dBotBBTA==
+"@babel/helper-get-function-arity@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.44.tgz#d03ca6dd2b9f7b0b1e6b32c56c72836140db3a15"
+  integrity sha512-w0YjWVwrM2HwP6/H3sEgrSQdkCaxppqFeJtAnB23pRiJB5E/O9Yp7JAAeWBl+gGEgmBFinnTyOv2RN7rcSmMiw==
   dependencies:
-    "@babel/types" "7.0.0-beta.40"
+    "@babel/types" "7.0.0-beta.44"
 
 "@babel/helper-get-function-arity@^7.0.0":
   version "7.0.0"
@@ -212,6 +212,13 @@
     "@babel/template" "^7.1.0"
     "@babel/types" "^7.0.0"
 
+"@babel/helper-split-export-declaration@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0-beta.44.tgz#c0b351735e0fbcb3822c8ad8db4e583b05ebd9dc"
+  integrity sha512-aQ7QowtkgKKzPGf0j6u77kBMdUFVBKNHw2p/3HX/POt5/oz8ec5cs0GwlgM8Hz7ui5EwJnzyfRmkNF1Nx1N7aA==
+  dependencies:
+    "@babel/types" "7.0.0-beta.44"
+
 "@babel/helper-split-export-declaration@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0.tgz#3aae285c0311c2ab095d997b8c9a94cad547d813"
@@ -238,10 +245,10 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.1.2"
 
-"@babel/highlight@7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0-beta.40.tgz#b43d67d76bf46e1d10d227f68cddcd263786b255"
-  integrity sha512-mOhhTrzieV6VO7odgzFGFapiwRK0ei8RZRhfzHhb6cpX3QM8XXuCLXWjN8qBB7JReDdUR80V3LFfFrGUYevhNg==
+"@babel/highlight@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0-beta.44.tgz#18c94ce543916a80553edcdcf681890b200747d5"
+  integrity sha512-Il19yJvy7vMFm8AVAh6OZzaFoAd0hbkeMZiX3P5HGD+z7dyI7RzndHB0dg6Urh/VAFfHtpOIzDUSxmY6coyZWQ==
   dependencies:
     chalk "^2.0.0"
     esutils "^2.0.2"
@@ -654,14 +661,14 @@
     pirates "^4.0.0"
     source-map-support "^0.5.9"
 
-"@babel/template@7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.0.0-beta.40.tgz#034988c6424eb5c3268fe6a608626de1f4410fc8"
-  integrity sha512-RlQiVB7eL7fxsKN6JvnCCwEwEL28CBYalXSgWWULuFlEHjtMoXBqQanSie3bNyhrANJx67sb+Sd/vuGivoMwLQ==
+"@babel/template@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.0.0-beta.44.tgz#f8832f4fdcee5d59bf515e595fc5106c529b394f"
+  integrity sha512-w750Sloq0UNifLx1rUqwfbnC6uSUk0mfwwgGRfdLiaUzfAOiH0tHJE6ILQIUi3KYkjiCDTskoIsnfqZvWLBDng==
   dependencies:
-    "@babel/code-frame" "7.0.0-beta.40"
-    "@babel/types" "7.0.0-beta.40"
-    babylon "7.0.0-beta.40"
+    "@babel/code-frame" "7.0.0-beta.44"
+    "@babel/types" "7.0.0-beta.44"
+    babylon "7.0.0-beta.44"
     lodash "^4.2.0"
 
 "@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.1.2":
@@ -673,6 +680,22 @@
     "@babel/parser" "^7.1.2"
     "@babel/types" "^7.1.2"
 
+"@babel/traverse@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.0.0-beta.44.tgz#a970a2c45477ad18017e2e465a0606feee0d2966"
+  integrity sha512-UHuDz8ukQkJCDASKHf+oDt3FVUzFd+QYfuBIsiNu/4+/ix6pP/C+uQZJ6K1oEfbCMv/IKWbgDEh7fcsnIE5AtA==
+  dependencies:
+    "@babel/code-frame" "7.0.0-beta.44"
+    "@babel/generator" "7.0.0-beta.44"
+    "@babel/helper-function-name" "7.0.0-beta.44"
+    "@babel/helper-split-export-declaration" "7.0.0-beta.44"
+    "@babel/types" "7.0.0-beta.44"
+    babylon "7.0.0-beta.44"
+    debug "^3.1.0"
+    globals "^11.1.0"
+    invariant "^2.2.0"
+    lodash "^4.2.0"
+
 "@babel/traverse@^7.0.0", "@babel/traverse@^7.1.0":
   version "7.1.4"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.1.4.tgz#f4f83b93d649b4b2c91121a9087fa2fa949ec2b4"
@@ -688,25 +711,10 @@
     globals "^11.1.0"
     lodash "^4.17.10"
 
-"@babel/traverse@^7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.0.0-beta.40.tgz#d140e449b2e093ef9fe1a2eecc28421ffb4e521e"
-  integrity sha512-h96SQorjvdSuxQ6hHFIuAa3oxnad1TA5bU1Zz88+XqzwmM5QM0/k2D+heXGGy/76gT5ajl7xYLKGiPA/KTyVhQ==
-  dependencies:
-    "@babel/code-frame" "7.0.0-beta.40"
-    "@babel/generator" "7.0.0-beta.40"
-    "@babel/helper-function-name" "7.0.0-beta.40"
-    "@babel/types" "7.0.0-beta.40"
-    babylon "7.0.0-beta.40"
-    debug "^3.0.1"
-    globals "^11.1.0"
-    invariant "^2.2.0"
-    lodash "^4.2.0"
-
-"@babel/types@7.0.0-beta.40", "@babel/types@^7.0.0-beta.40":
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.0.0-beta.40.tgz#25c3d7aae14126abe05fcb098c65a66b6d6b8c14"
-  integrity sha512-uXCGCzTgMZxcSUzutCPtZmXbVC+cvENgS2e0tRuhn+Y1hZnMb8IHP0Trq7Q2MB/eFmG5pKrAeTIUfQIe5kA4Tg==
+"@babel/types@7.0.0-beta.44":
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.0.0-beta.44.tgz#6b1b164591f77dec0a0342aca995f2d046b3a757"
+  integrity sha512-5eTV4WRmqbaFM3v9gHAIljEQJU4Ssc6fxL61JN+Oe2ga/BwyjzjamwkCVVAQjHGuAX8i0BWo42dshL8eO5KfLQ==
   dependencies:
     esutils "^2.0.2"
     lodash "^4.2.0"
@@ -721,51 +729,58 @@
     lodash "^4.17.10"
     to-fast-properties "^2.0.0"
 
+"@samverschueren/stream-to-observable@^0.3.0":
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz#ecdf48d532c58ea477acfcab80348424f8d0662f"
+  integrity sha512-MI4Xx6LHs4Webyvi6EbspgyAb4D2Q2VtnCQ1blOJcoLS6mVa8lNN2rkIy1CVxfTUpoyIbCTkXES1rLXztFD1lg==
+  dependencies:
+    any-observable "^0.3.0"
+
+"@types/estree@0.0.39":
+  version "0.0.39"
+  resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
+  integrity sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==
+
 "@types/node@*":
-  version "9.4.6"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.4.6.tgz#d8176d864ee48753d053783e4e463aec86b8d82e"
-  integrity sha512-CTUtLb6WqCCgp6P59QintjHWqzf4VL1uPA27bipLAPxFqrtK1gEYllePzTICGqQ8rYsCbpnsNypXjjDzGAAjEQ==
+  version "10.12.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.0.tgz#ea6dcbddbc5b584c83f06c60e82736d8fbb0c235"
+  integrity sha512-3TUHC3jsBAB7qVRGxT6lWyYo2v96BMmD2PTcl47H25Lu7UXtFH/2qqmKiVrnel6Ne//0TFYf6uvNX+HW2FRkLQ==
 
 "@types/node@^8.0.33":
-  version "8.9.4"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.9.4.tgz#dfd327582a06c114eb6e0441fa3d6fab35edad48"
-  integrity sha512-dSvD36qnQs78G1BPsrZFdPpvLgMW/dnvr5+nTW2csMs5TiP9MOXrjUbnMZOEwnIuBklXtn7b6TPA2Cuq07bDHA==
+  version "8.10.36"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.10.36.tgz#eac05d576fbcd0b4ea3c912dc58c20475c08d9e4"
+  integrity sha512-SL6KhfM7PTqiFmbCW3eVNwVBZ+88Mrzbuvn9olPsfv43mbiWaFY+nRcz/TGGku0/lc2FepdMbImdMY1JrQ+zbw==
 
-"@types/tapable@*":
-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-0.2.4.tgz#8181a228da46185439300e600c5ae3b3b3982585"
-  integrity sha512-pclMAvhPnXJcJu1ZZ8bQthuUcdDWzDuxDdbSf6l1U6s4fP6EBiZpPsOZYqFOrbqDV97sXGFSsb6AUpiLfv4xIA==
+"@types/tapable@^0":
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-0.2.5.tgz#2443fc12da514c81346b1a665675559cee21fa75"
+  integrity sha512-dEoVvo/I9QFomyhY+4Q6Qk+I+dhG59TYceZgC6Q0mCifVPErx6Y83PNTKGDS5e9h9Eti6q0S2mm16BU6iQK+3w==
 
 "@types/uglify-js@*":
-  version "2.6.30"
-  resolved "https://registry.yarnpkg.com/@types/uglify-js/-/uglify-js-2.6.30.tgz#257d2b6dd86673d60da476680fba90f2e30c6eef"
-  integrity sha512-NjiBNGFl58vHJeijl63w1fWRIjLnrfOvimsXF5b3lTzEzkTV1BnVsbqQeLejg54upsHPWIF63aiub5TEwH619A==
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/@types/uglify-js/-/uglify-js-3.0.4.tgz#96beae23df6f561862a830b4288a49e86baac082"
+  integrity sha512-SudIN9TRJ+v8g5pTG8RRCqfqTMNqgWCKKd3vtynhGzkIIjxaicNAMuY5TRadJ6tzDu3Dotf3ngaMILtmOdmWEQ==
   dependencies:
     source-map "^0.6.1"
 
 "@types/webpack@^3.0.13":
-  version "3.8.9"
-  resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-3.8.9.tgz#c420c9428ba18e20e4fe8eff7bee4d04bace9182"
-  integrity sha512-KfkmKP3bWQLW/nsB6yB/YVNGxAk3TcthPZf5nItCCw3iPjcrIxjWDPgbVg3ggccAyc8I2DhlgU3XYcqTa8jyjA==
+  version "3.8.17"
+  resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-3.8.17.tgz#08d1220432a8c0b11a28ed16ca09d04478a420ff"
+  integrity sha512-tPw9kaDqwIufHhl6tctCCKCzyeZwXqheeOJ0DRJP5AvQIA7CxeWq4xdSUdcOYHTYOBDoVHYEsXqoo4/vxIVHWQ==
   dependencies:
     "@types/node" "*"
-    "@types/tapable" "*"
+    "@types/tapable" "^0"
     "@types/uglify-js" "*"
     source-map "^0.6.0"
 
-JSONStream@^1.0.3, JSONStream@^1.0.4:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.2.tgz#c102371b6ec3a7cf3b847ca00c20bb0fce4c6dea"
-  integrity sha1-wQI3G27Dp887hHygDCC7D85Mbeo=
+JSONStream@^1.0.4:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.5.tgz#3208c1f08d3a4d99261ab64f92302bc15e111ca0"
+  integrity sha512-E+iruNOY8VV9s4JEbe1aNEm6MiszPRr/UfcHMz0TQh1BXSxHK+ASV1R6W4HpjBhSeS+54PIsAMCBmwD06LLsqQ==
   dependencies:
     jsonparse "^1.2.0"
     through ">=2.2.7 <3"
 
-abab@^1.0.4:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/abab/-/abab-1.0.4.tgz#5faad9c2c07f60dd76770f71cf025b62a63cfd4e"
-  integrity sha1-X6rZwsB/YN12dw9xzwJbYqY8/U4=
-
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
@@ -791,20 +806,6 @@ acorn-dynamic-import@^2.0.0:
   dependencies:
     acorn "^4.0.3"
 
-acorn-dynamic-import@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
-  integrity sha512-zVWV8Z8lislJoOKKqdNMOB+s6+XV5WERty8MnKBeFgwA+19XJjJHs2RP5dzM57FftIs+jQnRToLiWazKr6sSWg==
-  dependencies:
-    acorn "^5.0.0"
-
-acorn-globals@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.1.0.tgz#ab716025dbe17c54d3ef81d32ece2b2d99fe2538"
-  integrity sha512-KjZwU26uG3u6eZcfGbTULzFcsoz6pegNKtHPksZPOUsiKo5bUmiBPa38FuHZ/Eun+XYh/JCCkS9AS3Lu4McQOQ==
-  dependencies:
-    acorn "^5.0.0"
-
 acorn-jsx@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
@@ -812,21 +813,6 @@ acorn-jsx@^3.0.0:
   dependencies:
     acorn "^3.0.4"
 
-acorn-jsx@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-4.1.1.tgz#e8e41e48ea2fe0c896740610ab6a4ffd8add225e"
-  integrity sha512-JY+iV6r+cO21KtntVvFkD+iqjtdpRUpGqKWgfkCdZq1R+kbreEl8EcdcJR4SmiIgsIQT33s6QzheQ9a275Q8xw==
-  dependencies:
-    acorn "^5.0.3"
-
-acorn-node@^1.2.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/acorn-node/-/acorn-node-1.3.0.tgz#5f86d73346743810ef1269b901dbcbded020861b"
-  integrity sha512-efP54n3d1aLfjL2UMdaXa6DsswwzJeI5rqhbFvXMrKiJ6eJFpf+7R0zN7t8IC+XKn2YOAFAv6xbBNgHUkoHWLw==
-  dependencies:
-    acorn "^5.4.1"
-    xtend "^4.0.1"
-
 acorn@^3.0.4:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
@@ -837,10 +823,10 @@ acorn@^4.0.3:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
   integrity sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=
 
-acorn@^5.0.0, acorn@^5.0.3, acorn@^5.2.1, acorn@^5.3.0, acorn@^5.4.1, acorn@^5.5.0:
-  version "5.5.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.1.tgz#84e05a9ea0acbe131227da50301e62464dc9c1d8"
-  integrity sha512-D/KGiCpM/VOtTMDS+wfjywEth926WUrArrzYov4N4SI7t+3y8747dPpCmmAvrm/Z3ygqMHnyPxvYYO0yTdn/nQ==
+acorn@^5.0.0, acorn@^5.2.1, acorn@^5.5.0:
+  version "5.7.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
+  integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
 
 addressparser@1.0.1:
   version "1.0.1"
@@ -848,9 +834,9 @@ addressparser@1.0.1:
   integrity sha1-R6++GiqSYhkdtoOOT9HTm0CCF0Y=
 
 adm-zip@~0.4.3:
-  version "0.4.7"
-  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.7.tgz#8606c2cbf1c426ce8c8ec00174447fd49b6eafc1"
-  integrity sha1-hgbCy/HEJs6MjsABdER/1Jtur8E=
+  version "0.4.11"
+  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.11.tgz#2aa54c84c4b01a9d0fb89bb11982a51f13e3d62a"
+  integrity sha512-L8vcjDTCOIJk7wFvmlEUN7AsSb8T+2JrdP7KINBjzr24TJ5Mwj590sLu3BC7zNZowvJWa/JtPmD8eJCzdtDWjA==
 
 after@0.8.2:
   version "0.8.2"
@@ -865,23 +851,22 @@ agent-base@2:
     extend "~3.0.0"
     semver "~5.0.1"
 
+agent-base@4, agent-base@^4.1.0, agent-base@^4.2.0, agent-base@~4.2.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.1.tgz#d89e5999f797875674c07d87f260fc41e83e8ca9"
+  integrity sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==
+  dependencies:
+    es6-promisify "^5.0.0"
+
 ajv-keywords@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
   integrity sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=
 
 ajv-keywords@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
-  integrity sha1-rCsnk5xUPpXSwG5/f1wnvkqlQ74=
-
-ajv@^4.9.1:
-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
-  integrity sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=
-  dependencies:
-    co "^4.6.0"
-    json-stable-stringify "^1.0.1"
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.2.0.tgz#e86b819c602cf8821ad637413698f1dec021847a"
+  integrity sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=
 
 ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
   version "5.5.2"
@@ -894,13 +879,14 @@ ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
     json-schema-traverse "^0.3.0"
 
 ajv@^6.1.0:
-  version "6.2.1"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.2.1.tgz#28a6abc493a2abe0fb4c8507acaedb43fa550671"
-  integrity sha1-KKarxJOiq+D7TIUHrK7bQ/pVBnE=
+  version "6.5.4"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.5.4.tgz#247d5274110db653706b550fcc2b797ca28cfc59"
+  integrity sha512-4Wyjt8+t6YszqaXnLDfMmG/8AlO5Zbcsy3ATHncCzjW/NoPzAId8AK6749Ybjmdt+kUY1gP60fCu46oDxPv/mg==
   dependencies:
-    fast-deep-equal "^1.0.0"
+    fast-deep-equal "^2.0.1"
     fast-json-stable-stringify "^2.0.0"
-    json-schema-traverse "^0.3.0"
+    json-schema-traverse "^0.4.1"
+    uri-js "^4.2.2"
 
 align-text@^0.1.1, align-text@^0.1.3:
   version "0.1.4"
@@ -933,9 +919,9 @@ ansi-escapes@^1.0.0, ansi-escapes@^1.1.0:
   integrity sha1-06ioOzGapneTZisT52HHkRQiMG4=
 
 ansi-escapes@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.0.0.tgz#ec3e8b4e9f8064fc02c3ac9b65f1c275bda8ef92"
-  integrity sha512-O/klc27mWNUigtv0F8NJWbLF00OcegQalkqKURWdosW08YZKi4m6CnSUSvIZG1otNJbTWhN01Hhz389DW7mvDQ==
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.1.0.tgz#f73207bb81207d75fd6c83f125af26eea378ca30"
+  integrity sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw==
 
 ansi-regex@^2.0.0:
   version "2.1.1"
@@ -959,18 +945,10 @@ ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
-any-observable@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.2.0.tgz#c67870058003579009083f54ac0abafb5c33d242"
-  integrity sha1-xnhwBYADV5AJCD9UrAq6+1wz0kI=
-
-anymatch@^1.3.0:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
-  integrity sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==
-  dependencies:
-    micromatch "^2.1.5"
-    normalize-path "^2.0.0"
+any-observable@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.3.0.tgz#af933475e5806a67d0d7df090dd5e8bef65d119b"
+  integrity sha512-/FQM1EDkTsf63Ub2C6O7GuYFDsSXUwsaZDurV0np41ocwq0jthUAYCmhBX9f+KwlaCgIuWyr/4WlUQUBfKfZog==
 
 anymatch@^2.0.0:
   version "2.0.0"
@@ -980,11 +958,6 @@ anymatch@^2.0.0:
     micromatch "^3.1.4"
     normalize-path "^2.1.1"
 
-app-root-path@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-2.0.1.tgz#cd62dcf8e4fd5a417efc664d2e5b10653c651b46"
-  integrity sha1-zWLc+OT9WkF+/GZNLlsQZTxlG0Y=
-
 aproba@^1.0.3:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
@@ -1002,10 +975,10 @@ archiver-utils@^1.3.0:
     normalize-path "^2.0.0"
     readable-stream "^2.0.0"
 
-archiver@1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/archiver/-/archiver-1.3.0.tgz#4f2194d6d8f99df3f531e6881f14f15d55faaf22"
-  integrity sha1-TyGU1tj5nfP1MeaIHxTxXVX6ryI=
+archiver@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/archiver/-/archiver-2.1.1.tgz#ff662b4a78201494a3ee544d3a33fe7496509ebc"
+  integrity sha1-/2YrSnggFJSj7lRNOjP+dJZQnrw=
   dependencies:
     archiver-utils "^1.3.0"
     async "^2.0.0"
@@ -1014,13 +987,12 @@ archiver@1.3.0:
     lodash "^4.8.0"
     readable-stream "^2.0.0"
     tar-stream "^1.5.0"
-    walkdir "^0.0.11"
-    zip-stream "^1.1.0"
+    zip-stream "^1.2.0"
 
 are-we-there-yet@~1.1.2:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz#bb5dca382bb94f05e15194373d16fd3ba1ca110d"
-  integrity sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
+  integrity sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==
   dependencies:
     delegates "^1.0.0"
     readable-stream "^2.0.6"
@@ -1059,16 +1031,6 @@ arr-union@^3.1.0:
   resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
   integrity sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=
 
-array-equal@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/array-equal/-/array-equal-1.0.0.tgz#8c2a5ef2472fd9ea742b04c77a75093ba2757c93"
-  integrity sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM=
-
-array-filter@~0.0.0:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/array-filter/-/array-filter-0.0.1.tgz#7da8cf2e26628ed732803581fd21f67cacd2eeec"
-  integrity sha1-fajPLiZijtcygDWB/SH2fKzS7uw=
-
 array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
@@ -1079,16 +1041,6 @@ array-ify@^1.0.0:
   resolved "https://registry.yarnpkg.com/array-ify/-/array-ify-1.0.0.tgz#9e528762b4a9066ad163a6962a364418e9626ece"
   integrity sha1-nlKHYrSpBmrRY6aWKjZEGOlibs4=
 
-array-map@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/array-map/-/array-map-0.0.0.tgz#88a2bab73d1cf7bcd5c1b118a003f66f665fa662"
-  integrity sha1-iKK6tz0c97zVwbEYoAP2b2ZfpmI=
-
-array-reduce@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/array-reduce/-/array-reduce-0.0.0.tgz#173899d3ffd1c7d9383e4479525dbe278cab5f2b"
-  integrity sha1-FziZ0//Rx9k4PkR5Ul2+J4yrXys=
-
 array-slice@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/array-slice/-/array-slice-0.2.3.tgz#dd3cfb80ed7973a75117cdac69b0b99ec86186f5"
@@ -1136,9 +1088,11 @@ asn1.js@^4.0.0:
     minimalistic-assert "^1.0.0"
 
 asn1@~0.2.3:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.3.tgz#dac8787713c9966849fc8180777ebe9c1ddf3b86"
-  integrity sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.4.tgz#8d2475dfab553bb33e77b54e59e880bb8ce23136"
+  integrity sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==
+  dependencies:
+    safer-buffer "~2.1.0"
 
 assert-plus@1.0.0, assert-plus@^1.0.0:
   version "1.0.0"
@@ -1150,7 +1104,7 @@ assert-plus@^0.2.0:
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
   integrity sha1-104bh+ev/A24qttwIfP+SBAasjQ=
 
-assert@^1.1.1, assert@^1.4.0:
+assert@^1.1.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/assert/-/assert-1.4.1.tgz#99912d591836b5a6f5b345c0f07eefc08fc65d91"
   integrity sha1-mZEtWRg2tab1s0XA8H7vwI/GXZE=
@@ -1168,16 +1122,9 @@ assign-symbols@^1.0.0:
   integrity sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=
 
 ast-types@0.x.x:
-  version "0.11.2"
-  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.2.tgz#cc4e1d15a36b39979a1986fe1e91321cbfae7783"
-  integrity sha512-aL+pcOQ+6dpWd0xrUe+Obo2CgdkFvsntkXEmzZKqEN4cR0PStF+1MBuc4V+YZsv4Q36luvyjG7F4lc+wH2bmag==
-
-astw@^2.0.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/astw/-/astw-2.2.0.tgz#7bd41784d32493987aeb239b6b4e1c57a873b917"
-  integrity sha1-e9QXhNMkk5h66yOba04cV6hzuRc=
-  dependencies:
-    acorn "^4.0.3"
+  version "0.11.6"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.6.tgz#4e2266c2658829aef3b40cc33ad599c4e9eb89ef"
+  integrity sha512-nHiuV14upVGl7MWwFUYbzJ6YlfwWS084CU9EA8HajfYQjMSli5TQi3UTRygGF58LFWVkXxS1rbgRhROEqlQkXg==
 
 async-each@^1.0.0:
   version "1.0.1"
@@ -1189,7 +1136,7 @@ async-limiter@~1.0.0:
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.0.tgz#78faed8c3d074ab81f22b4e985d79e8738f720f8"
   integrity sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==
 
-async@1.x, async@^1.4.0, async@^1.5.2:
+async@1.x, async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
@@ -1201,34 +1148,22 @@ async@2.0.1:
   dependencies:
     lodash "^4.8.0"
 
-async@^2.0.0, async@^2.1.2:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.6.0.tgz#61a29abb6fcc026fea77e56d1c6ec53a795951f4"
-  integrity sha512-xAfGg1/NTLBBKlHFmnd7PlmUW9KhVQIUuSrYem9xzFUZy13ScvtyGGejaae9iAVRiRq9+Cx7DPFaAAhCpyxyPw==
-  dependencies:
-    lodash "^4.14.0"
-
-async@~2.1.2:
-  version "2.1.5"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.1.5.tgz#e587c68580994ac67fc56ff86d3ac56bdbe810bc"
-  integrity sha1-5YfGhYCZSsZ/xW/4bTrFa9voELw=
+async@^2.0.0, async@^2.1.2, async@^2.5.0, async@~2.6.0:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
+  integrity sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==
   dependencies:
-    lodash "^4.14.0"
+    lodash "^4.17.10"
 
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha1-x57Zf380y48robyXkLzDZkdLS3k=
 
-atob@^2.0.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/atob/-/atob-2.0.3.tgz#19c7a760473774468f20b2d2d03372ad7d4cbf5d"
-  integrity sha1-GcenYEc3dEaPILLS0DNyrX1Mv10=
-
-atob@~1.1.0:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/atob/-/atob-1.1.3.tgz#95f13629b12c3a51a5d215abdce2aa9f32f80773"
-  integrity sha1-lfE2KbEsOlGl0hWr3OKqnzL4B3M=
+atob@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
+  integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
 aws-sign2@~0.6.0:
   version "0.6.0"
@@ -1240,12 +1175,7 @@ aws-sign2@~0.7.0:
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
   integrity sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=
 
-aws4@^1.2.1, aws4@^1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.6.0.tgz#83ef5ca860b2b32e4a0deedee8c771b9db57471e"
-  integrity sha1-g+9cqGCysy5KDe7e6MdxudtXRx4=
-
-aws4@^1.8.0:
+aws4@^1.2.1, aws4@^1.6.0, aws4@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
@@ -1267,15 +1197,15 @@ babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
     js-tokens "^3.0.2"
 
 babel-eslint@^8.0.3:
-  version "8.2.2"
-  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.2.2.tgz#1102273354c6f0b29b4ea28a65f97d122296b68b"
-  integrity sha512-Qt2lz2egBxNYWqN9JIO2z4NOOf8i4b5JS6CFoYrOZZTDssueiV1jH/jsefyg+86SeNY3rB361/mi3kE1WK2WYQ==
-  dependencies:
-    "@babel/code-frame" "^7.0.0-beta.40"
-    "@babel/traverse" "^7.0.0-beta.40"
-    "@babel/types" "^7.0.0-beta.40"
-    babylon "^7.0.0-beta.40"
-    eslint-scope "~3.7.1"
+  version "8.2.6"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.2.6.tgz#6270d0c73205628067c0f7ae1693a9e797acefd9"
+  integrity sha512-aCdHjhzcILdP8c9lej7hvXKvQieyRt20SF102SIGyY4cUIiw6UaAtK4j2o3dXX74jEmy0TJ0CEhv4fTIM3SzcA==
+  dependencies:
+    "@babel/code-frame" "7.0.0-beta.44"
+    "@babel/traverse" "7.0.0-beta.44"
+    "@babel/types" "7.0.0-beta.44"
+    babylon "7.0.0-beta.44"
+    eslint-scope "3.7.1"
     eslint-visitor-keys "^1.0.0"
 
 babel-helper-function-name@^6.24.1:
@@ -1363,6 +1293,15 @@ babel-plugin-transform-vue-jsx@^4.0.1:
   dependencies:
     esutils "^2.0.2"
 
+babel-polyfill@6.23.0:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.23.0.tgz#8364ca62df8eafb830499f699177466c3b03499d"
+  integrity sha1-g2TKYt+Or7gwSZ9pkXdGbDsDSZ0=
+  dependencies:
+    babel-runtime "^6.22.0"
+    core-js "^2.4.0"
+    regenerator-runtime "^0.10.0"
+
 babel-preset-flow-vue@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/babel-preset-flow-vue/-/babel-preset-flow-vue-1.0.0.tgz#bd28eb64b53d65f9c47262b32ce6c6033fe70671"
@@ -1416,10 +1355,10 @@ babel-types@^6.24.1, babel-types@^6.26.0:
     lodash "^4.17.4"
     to-fast-properties "^1.0.3"
 
-babylon@7.0.0-beta.40, babylon@^7.0.0-beta.40:
-  version "7.0.0-beta.40"
-  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.40.tgz#91fc8cd56d5eb98b28e6fde41045f2957779940a"
-  integrity sha512-AVxF2EcxvGD5hhOuLTOLAXBb0VhwWpEX0HyHdAI2zU+AAP4qEwtQj8voz1JR3uclGai0rfcE+dCTHnNMOnimFg==
+babylon@7.0.0-beta.44:
+  version "7.0.0-beta.44"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.44.tgz#89159e15e6e30c5096e22d738d8c0af8a0e8ca1d"
+  integrity sha512-5Hlm13BJVAioCHpImtFqNOF2H3ieTOHd0fmFGMxOJ9jgeFqeAwsv3u5P5cR7CSeFrkgHsT19DgFJkHV0/Mcd8g==
 
 babylon@^6.18.0, babylon@^6.8.4:
   version "6.18.0"
@@ -1442,9 +1381,9 @@ base64-arraybuffer@0.1.5:
   integrity sha1-c5JncZI7Whl0etZmqlzUv5xunOg=
 
 base64-js@^1.0.2:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.2.3.tgz#fb13668233d9614cf5fb4bce95a9ba4096cdf801"
-  integrity sha512-MsAhsUW1GxCdgYSO6tAfZrNapmUKk7mWx/k5mFY/A1gBtkaCaNapTg+FExCw1r9yeaZhqx/xPg43xgTFH6KL5w==
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.0.tgz#cab1e6118f051095e58b5281aea8c1cd22bfc0e3"
+  integrity sha512-ccav/yGvoa80BQDljCxsmmQ3Xvx60/UpBIij5QN21W3wBi/hhIC9OoO+KLpu9IJTS9j4DRVJ3aDDF9cMSoa2lw==
 
 base64id@1.0.0:
   version "1.0.0"
@@ -1465,9 +1404,9 @@ base@^0.11.1:
     pascalcase "^0.1.1"
 
 bcrypt-pbkdf@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz#63bc5dcb61331b92bc05fd528953c33462a06f8d"
-  integrity sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz#a4301d389b6a43f9b67ff3ca11a3f6637e360e9e"
+  integrity sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=
   dependencies:
     tweetnacl "^0.14.3"
 
@@ -1484,9 +1423,9 @@ big.js@^3.1.3:
   integrity sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==
 
 binary-extensions@^1.0.0:
-  version "1.11.0"
-  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
-  integrity sha1-RqoXUftqL5PuXmibsQh9SxTGwgU=
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.12.0.tgz#c2d780f53d45bba8317a8902d4ceeaf3a6385b14"
+  integrity sha512-DYWGk01lDcxeS/K9IHPGWfT8PsJmbXRtRd2Sx72Tnb8pcYZQFF1oSDb8hJtS1vhp212q1Rzi5dUf9+nq0o9UIg==
 
 bitsyntax@~0.0.4:
   version "0.0.4"
@@ -1496,11 +1435,12 @@ bitsyntax@~0.0.4:
     buffer-more-ints "0.0.2"
 
 bl@^1.0.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.1.tgz#cac328f7bee45730d404b692203fcb590e172d5e"
-  integrity sha1-ysMo977kVzDUBLaSID/LWQ4XLV4=
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.2.tgz#a160911717103c07410cef63ef51b397c025af9c"
+  integrity sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==
   dependencies:
-    readable-stream "^2.0.5"
+    readable-stream "^2.3.5"
+    safe-buffer "^5.1.1"
 
 bl@~1.1.2:
   version "1.1.2"
@@ -1514,17 +1454,10 @@ blob@0.0.4:
   resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
   integrity sha1-vPEwUspURj8w+fx+lbmkdjCpSSE=
 
-block-stream@*:
-  version "0.0.9"
-  resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
-  integrity sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=
-  dependencies:
-    inherits "~2.0.0"
-
 bluebird@^3.3.0, bluebird@^3.4.6:
-  version "3.5.1"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
-  integrity sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
+  version "3.5.2"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.2.tgz#1be0908e054a751754549c270489c1505d4ab15a"
+  integrity sha512-dhHTWMI7kMx5whMQntl7Vr9C6BvV10lFXDAasnqnrMYhXVCzzk6IO9Fo2L75jXHT07WrOngL1WDXOp+yYS91Yg==
 
 bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   version "4.11.8"
@@ -1532,20 +1465,20 @@ bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
 
 body-parser@^1.16.1:
-  version "1.18.2"
-  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.2.tgz#87678a19d84b47d859b83199bd59bce222b10454"
-  integrity sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=
+  version "1.18.3"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.3.tgz#5b292198ffdd553b3a0f20ded0592b956955c8b4"
+  integrity sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=
   dependencies:
     bytes "3.0.0"
     content-type "~1.0.4"
     debug "2.6.9"
-    depd "~1.1.1"
-    http-errors "~1.6.2"
-    iconv-lite "0.4.19"
+    depd "~1.1.2"
+    http-errors "~1.6.3"
+    iconv-lite "0.4.23"
     on-finished "~2.3.0"
-    qs "6.5.1"
-    raw-body "2.3.2"
-    type-is "~1.6.15"
+    qs "6.5.2"
+    raw-body "2.3.3"
+    type-is "~1.6.16"
 
 boom@2.x.x:
   version "2.10.1"
@@ -1593,17 +1526,15 @@ braces@^1.8.2:
     repeat-element "^1.1.2"
 
 braces@^2.3.0, braces@^2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.1.tgz#7086c913b4e5a08dbe37ac0ee6a2500c4ba691bb"
-  integrity sha512-SO5lYHA3vO6gz66erVvedSCkp7AKWdv6VcQ2N4ysXfPxdAlxAMMAdwegGGcv1Bqwm7naF1hNdk5d6AAIEHV2nQ==
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.2.tgz#5979fd3f14cd531565e5fa2df1abfff1dfaee729"
+  integrity sha512-aNdbnj9P8PjdXU4ybaWLK2IF3jc/EoDYbC7AazW6to3TRsfXxscC9UXOB5iDiEQrkyIbWp2SLQda4+QAa7nc3w==
   dependencies:
     arr-flatten "^1.1.0"
     array-unique "^0.3.2"
-    define-property "^1.0.0"
     extend-shallow "^2.0.1"
     fill-range "^4.0.0"
     isobject "^3.0.1"
-    kind-of "^6.0.2"
     repeat-element "^1.1.2"
     snapdragon "^0.8.1"
     snapdragon-node "^2.0.1"
@@ -1615,39 +1546,15 @@ brorand@^1.0.1:
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
   integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=
 
-browser-pack@^6.0.1:
-  version "6.0.4"
-  resolved "https://registry.yarnpkg.com/browser-pack/-/browser-pack-6.0.4.tgz#9a73beb3b48f9e36868be007b64400102c04a99f"
-  integrity sha512-Q4Rvn7P6ObyWfc4stqLWHtG1MJ8vVtjgT24Zbu+8UTzxYuZouqZsmNRRTFVMY/Ux0eIKv1d+JWzsInTX+fdHPQ==
-  dependencies:
-    JSONStream "^1.0.3"
-    combine-source-map "~0.8.0"
-    defined "^1.0.0"
-    safe-buffer "^5.1.1"
-    through2 "^2.0.0"
-    umd "^3.0.0"
-
-browser-process-hrtime@^0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/browser-process-hrtime/-/browser-process-hrtime-0.1.2.tgz#425d68a58d3447f02a04aa894187fce8af8b7b8e"
-  integrity sha1-Ql1opY00R/AqBKqJQYf86K+Le44=
-
-browser-resolve@^1.11.0, browser-resolve@^1.11.2, browser-resolve@^1.7.0:
-  version "1.11.2"
-  resolved "https://registry.yarnpkg.com/browser-resolve/-/browser-resolve-1.11.2.tgz#8ff09b0a2c421718a1051c260b32e48f442938ce"
-  integrity sha1-j/CbCixCFxihBRwmCzLkj0QpOM4=
-  dependencies:
-    resolve "1.1.7"
-
 browser-stdout@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
   integrity sha1-81HTKWnTL6XXpVZxVCY9korjvR8=
 
 browserify-aes@^1.0.0, browserify-aes@^1.0.4:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-1.1.1.tgz#38b7ab55edb806ff2dcda1a7f1620773a477c49f"
-  integrity sha512-UGnTYAnB2a3YuYKIRy1/4FB2HdM866E0qC46JXvVTYKlBlZlnvfpSfY6OKfXZAkv70eJ2a1SqzpAo5CRhZGDFg==
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-1.2.0.tgz#326734642f403dabc3003209853bb70ad428ef48"
+  integrity sha512-+7CHXqGuspUn/Sl5aO7Ea0xWGAtETPXNSAjHo48JfLdPWcMng33Xe4znFvQweqc/uzk5zSOI3H52CYnjCfb5hA==
   dependencies:
     buffer-xor "^1.0.3"
     cipher-base "^1.0.0"
@@ -1657,22 +1564,23 @@ browserify-aes@^1.0.0, browserify-aes@^1.0.4:
     safe-buffer "^5.0.1"
 
 browserify-cipher@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/browserify-cipher/-/browserify-cipher-1.0.0.tgz#9988244874bf5ed4e28da95666dcd66ac8fc363a"
-  integrity sha1-mYgkSHS/XtTijalWZtzWasj8Njo=
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/browserify-cipher/-/browserify-cipher-1.0.1.tgz#8d6474c1b870bfdabcd3bcfcc1934a10e94f15f0"
+  integrity sha512-sPhkz0ARKbf4rRQt2hTpAHqn47X3llLkUGn+xEJzLjwY8LRs2p0v7ljvI5EyoRO/mexrNunNECisZs+gw2zz1w==
   dependencies:
     browserify-aes "^1.0.4"
     browserify-des "^1.0.0"
     evp_bytestokey "^1.0.0"
 
 browserify-des@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/browserify-des/-/browserify-des-1.0.0.tgz#daa277717470922ed2fe18594118a175439721dd"
-  integrity sha1-2qJ3cXRwki7S/hhZQRihdUOXId0=
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/browserify-des/-/browserify-des-1.0.2.tgz#3af4f1f59839403572f1c66204375f7a7f703e9c"
+  integrity sha512-BioO1xf3hFwz4kc6iBhI3ieDFompMhrMlnDFC4/0/vd5MokpuAc3R+LYbwTA9A5Yc9pq9UYPqffKpW2ObuwX5A==
   dependencies:
     cipher-base "^1.0.1"
     des.js "^1.0.0"
     inherits "^2.0.1"
+    safe-buffer "^5.1.2"
 
 browserify-rsa@^4.0.0:
   version "4.0.1"
@@ -1695,94 +1603,57 @@ browserify-sign@^4.0.0:
     inherits "^2.0.1"
     parse-asn1 "^5.0.0"
 
-browserify-zlib@^0.2.0, browserify-zlib@~0.2.0:
+browserify-zlib@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/browserify-zlib/-/browserify-zlib-0.2.0.tgz#2869459d9aa3be245fe8fe2ca1f46e2e7f54d73f"
   integrity sha512-Z942RysHXmJrhqk88FmKBVq/v5tqmSkDz7p54G/MGyjMnCFFnC79XWNbg+Vta8W6Wb2qtSZTSxIGkJrRpCFEiA==
   dependencies:
     pako "~1.0.5"
 
-browserify@^14.5.0:
-  version "14.5.0"
-  resolved "https://registry.yarnpkg.com/browserify/-/browserify-14.5.0.tgz#0bbbce521acd6e4d1d54d8e9365008efb85a9cc5"
-  integrity sha512-gKfOsNQv/toWz+60nSPfYzuwSEdzvV2WdxrVPUbPD/qui44rAkB3t3muNtmmGYHqrG56FGwX9SUEQmzNLAeS7g==
-  dependencies:
-    JSONStream "^1.0.3"
-    assert "^1.4.0"
-    browser-pack "^6.0.1"
-    browser-resolve "^1.11.0"
-    browserify-zlib "~0.2.0"
-    buffer "^5.0.2"
-    cached-path-relative "^1.0.0"
-    concat-stream "~1.5.1"
-    console-browserify "^1.1.0"
-    constants-browserify "~1.0.0"
-    crypto-browserify "^3.0.0"
-    defined "^1.0.0"
-    deps-sort "^2.0.0"
-    domain-browser "~1.1.0"
-    duplexer2 "~0.1.2"
-    events "~1.1.0"
-    glob "^7.1.0"
-    has "^1.0.0"
-    htmlescape "^1.1.0"
-    https-browserify "^1.0.0"
-    inherits "~2.0.1"
-    insert-module-globals "^7.0.0"
-    labeled-stream-splicer "^2.0.0"
-    module-deps "^4.0.8"
-    os-browserify "~0.3.0"
-    parents "^1.0.1"
-    path-browserify "~0.0.0"
-    process "~0.11.0"
-    punycode "^1.3.2"
-    querystring-es3 "~0.2.0"
-    read-only-stream "^2.0.0"
-    readable-stream "^2.0.2"
-    resolve "^1.1.4"
-    shasum "^1.0.0"
-    shell-quote "^1.6.1"
-    stream-browserify "^2.0.0"
-    stream-http "^2.0.0"
-    string_decoder "~1.0.0"
-    subarg "^1.0.0"
-    syntax-error "^1.1.1"
-    through2 "^2.0.0"
-    timers-browserify "^1.0.1"
-    tty-browserify "~0.0.0"
-    url "~0.11.0"
-    util "~0.10.1"
-    vm-browserify "~0.0.1"
-    xtend "^4.0.0"
-
 browserslist@^4.1.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.2.1.tgz#257a24c879d1cd4016348eee5c25de683260b21d"
-  integrity sha512-1oO0c7Zhejwd+LXihS89WqtKionSbz298rJZKJgfrHIZhrV8AC15gw553VcB0lcEugja7IhWD7iAlrsamfYVPA==
+  version "4.3.2"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.3.2.tgz#a5479f20fd387357be2d01aefcbbdcaadffb4d75"
+  integrity sha512-wgZJWlYcDvsjRtf8socmAHf1nXq88KrQLB/gMYHGPUc2bzPWsgltSXwPWYHx4Sw0G9E/XGNW5wJDaWlpHRMpjA==
   dependencies:
-    caniuse-lite "^1.0.30000890"
-    electron-to-chromium "^1.3.79"
+    caniuse-lite "^1.0.30000898"
+    electron-to-chromium "^1.3.80"
     node-releases "^1.0.0-alpha.14"
 
-buble@^0.19.2, buble@^0.19.3:
-  version "0.19.3"
-  resolved "https://registry.yarnpkg.com/buble/-/buble-0.19.3.tgz#01e9412062cff1da6f20342b6ecd72e7bf699d02"
-  integrity sha512-3B0Lcy2u6x6km0BqTz/FS3UnrOJlnIlBWsyjvtqzdtmWkqiS0+Sg4hc6L9Mmm63hZKTACpYS9vUeIoKSi1vcrQ==
+buble@^0.19.3, buble@^0.19.4:
+  version "0.19.6"
+  resolved "https://registry.yarnpkg.com/buble/-/buble-0.19.6.tgz#915909b6bd5b11ee03b1c885ec914a8b974d34d3"
+  integrity sha512-9kViM6nJA1Q548Jrd06x0geh+BG2ru2+RMDkIHHgJY/8AcyCs34lTHwra9BX7YdPrZXd5aarkpr/SY8bmPgPdg==
   dependencies:
-    acorn "^5.4.1"
-    acorn-dynamic-import "^3.0.0"
-    acorn-jsx "^4.1.1"
-    chalk "^2.3.1"
-    magic-string "^0.22.4"
+    chalk "^2.4.1"
+    magic-string "^0.25.1"
     minimist "^1.2.0"
     os-homedir "^1.0.1"
+    regexpu-core "^4.2.0"
     vlq "^1.0.0"
 
+buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+  integrity sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==
+
+buffer-alloc@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  integrity sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
 buffer-crc32@^0.2.1:
   version "0.2.13"
   resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
   integrity sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=
 
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+  integrity sha1-+PeLdniYiO858gXNY39o5wISKyw=
+
 buffer-from@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
@@ -1807,10 +1678,10 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
-buffer@^5.0.2:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.1.0.tgz#c913e43678c7cb7c8bd16afbcddb6c5505e8f9fe"
-  integrity sha512-YkIRgwsZwJWTnyQrsBTWefizHh+8GYj3kbL1BTiAQ/9pwpino0G7B2gp5tx/FUBqUlvtxV85KNR3mwfAtv15Yw==
+buffer@^5.1.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.2.1.tgz#dd57fa0f109ac59c602479044dca7b8b3d0b71d6"
+  integrity sha512-c+Ko0loDaFfuPWiL02ls9Xd3GO3cPVmUobQ6t3rXNUk304u6hGq+8N/kFi+QEIKhzK3uwolVhLzszmfLmMLnqg==
   dependencies:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
@@ -1863,15 +1734,10 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
-cached-path-relative@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/cached-path-relative/-/cached-path-relative-1.0.1.tgz#d09c4b52800aa4c078e2dd81a869aac90d2e54e7"
-  integrity sha1-0JxLUoAKpMB44t2BqGmqyQ0uVOc=
-
 cachedir@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/cachedir/-/cachedir-1.2.0.tgz#e9a0a25bb21a2b7a0f766f07c41eb7a311919b97"
-  integrity sha512-i3xIKd9U4ov0hWXYo08oJy0YVz0krZ9dbTZQim41xkg0IiScptkAK0UilZ5M1WE3gnWjXAa9+cMtrJ5dM+THbA==
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/cachedir/-/cachedir-1.3.0.tgz#5e01928bf2d95b5edd94b0942188246740e0dbc4"
+  integrity sha512-O1ji32oyON9laVPJL1IZ5bmwd2cB46VfpxkDequezH+15FDzzVddEyrGEeX4WusDSqKxdyFdDQDEG1yo1GoWkg==
   dependencies:
     os-homedir "^1.0.1"
 
@@ -1892,11 +1758,6 @@ callsites@^0.2.0:
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
   integrity sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=
 
-callsites@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
-  integrity sha1-BuuE8A7qQT2oav/vrL/7Ngk7PFA=
-
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
@@ -1929,10 +1790,10 @@ camelcase@^4.1.0:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
   integrity sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=
 
-caniuse-lite@^1.0.30000890:
-  version "1.0.30000890"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000890.tgz#86a18ffcc65d79ec6a437e985761b8bf1c4efeaf"
-  integrity sha512-4NI3s4Y6ROm+SgZN5sLUG4k7nVWQnedis3c/RWkynV5G6cHSY7+a8fwFyn2yoBDE3E6VswhTNNwR3PvzGqlTkg==
+caniuse-lite@^1.0.30000898:
+  version "1.0.30000898"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000898.tgz#651306e690ca83caca5814da5afa3eb4de0f86c2"
+  integrity sha512-ytlTZqO4hYe4rNAJhMynUAIUI33jsP2Bb1two/9OVC39wZjPZ8exIO0eCLw5mqAtegOGiGF0kkTWTn3B02L+mw==
 
 caseless@~0.11.0:
   version "0.11.0"
@@ -1971,10 +1832,10 @@ chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.2.tgz#250dc96b07491bfd601e648d66ddf5f60c7a5c65"
-  integrity sha512-ZM4j2/ld/YZDc3Ma8PgN7gyAk+kHMMMyzLNryCPGhWrsfAuDVeuid5bpRFTDgMH9JBK2lA4dyyAkkZYF/WcqDQ==
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1, chalk@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
+  integrity sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==
   dependencies:
     ansi-styles "^3.2.1"
     escape-string-regexp "^1.0.5"
@@ -1985,26 +1846,10 @@ chardet@^0.4.0:
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
   integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
 
-chokidar@^1.4.1, chokidar@^1.7.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
-  integrity sha1-eY5ol3gVHIB2tLNg5e3SjNortGg=
-  dependencies:
-    anymatch "^1.3.0"
-    async-each "^1.0.0"
-    glob-parent "^2.0.0"
-    inherits "^2.0.1"
-    is-binary-path "^1.0.0"
-    is-glob "^2.0.0"
-    path-is-absolute "^1.0.0"
-    readdirp "^2.0.0"
-  optionalDependencies:
-    fsevents "^1.0.0"
-
-chokidar@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.2.tgz#4dc65139eeb2714977735b6a35d06e97b494dfd7"
-  integrity sha512-l32Hw3wqB0L2kGVmSbK/a+xXLDrUEsc84pSgMkmwygHvD7ubRsP/vxxHa5BtB6oix1XLLVCHyYMsckRXxThmZw==
+chokidar@^2.0.2, chokidar@^2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.4.tgz#356ff4e2b0e8e43e322d18a372460bbcf3accd26"
+  integrity sha512-z9n7yt9rOvIJrMhvDtDictKrkFHeihkNl6uWMmZlmL6tJtX9Cs+87oK+teBx+JIgzvbX3yZHT3eF8vpbDxHJXQ==
   dependencies:
     anymatch "^2.0.0"
     async-each "^1.0.0"
@@ -2013,28 +1858,34 @@ chokidar@^2.0.2:
     inherits "^2.0.1"
     is-binary-path "^1.0.0"
     is-glob "^4.0.0"
+    lodash.debounce "^4.0.8"
     normalize-path "^2.1.1"
     path-is-absolute "^1.0.0"
     readdirp "^2.0.0"
-    upath "^1.0.0"
+    upath "^1.0.5"
   optionalDependencies:
-    fsevents "^1.0.0"
+    fsevents "^1.2.2"
+
+chownr@^1.0.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
+  integrity sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g==
 
 chromedriver@^2.30.1:
-  version "2.36.0"
-  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-2.36.0.tgz#6a9473e11b50e7181ef8cd6476680e7f167374cd"
-  integrity sha512-Lq2HrigCJ4RVdIdCmchenv1rVrejNSJ7EUCQojycQo12ww3FedQx4nb+GgTdqMhjbOMTqq5+ziaiZlrEN2z1gQ==
+  version "2.43.0"
+  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-2.43.0.tgz#435d3e582e8383204827c1ffd8be80683da20330"
+  integrity sha512-W0aEk0ibNs7S4PA/vtH1xYcuAXc2474a1XjA9ERE1ZUSFo4NwJMtR7G8w+XP8mkaaxDYSOtiuDUAGW23cT6Gjg==
   dependencies:
     del "^3.0.0"
-    extract-zip "^1.6.5"
+    extract-zip "^1.6.7"
     kew "^0.7.0"
     mkdirp "^0.5.1"
-    request "^2.83.0"
+    request "^2.87.0"
 
-ci-info@^1.0.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.1.2.tgz#03561259db48d0474c8bdc90f5b47b068b6bbfb4"
-  integrity sha512-uTGIPNx/nSpBdsF6xnseRXLLtfr9VLqkz8ZqHXr3Y7b6SftyRxBGjwMtJj1OhNbmlc1wZzLNAlAcvyIiE8a6ZA==
+ci-info@^1.5.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.6.0.tgz#2ca20dbb9ceb32d4524a683303313f0304b1e497"
+  integrity sha512-vsGdkwSCDpWmP80ncATX7iea5DWQemg1UgCW5J8tqjU3lYw4FBYuj89J0CTVomA7BEfvSZd84GmHko+MxFQU2A==
 
 cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
   version "1.0.4"
@@ -2049,10 +1900,10 @@ circular-json@^0.3.1:
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
   integrity sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A==
 
-circular-json@^0.5.1:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.5.1.tgz#b8942a09e535863dc21b04417a91971e1d9cd91f"
-  integrity sha512-UjgcRlTAhAkLeXmDe2wK7ktwy/tgAqxiSndTIPiFZuIPLZmzHzWMwUIe9h9m/OokypG7snxCDEuwJshGBdPvaw==
+circular-json@^0.5.4:
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.5.9.tgz#932763ae88f4f7dead7a0d09c8a51a4743a53b1d"
+  integrity sha512-4ivwqHpIFJZBuhN3g/pEcdbnGUywkBblloGbkglyloVjjR3uT6tieI89MVOfbP2tHX5sgb01FuLgAOzebNlJNQ==
 
 class-utils@^0.3.5:
   version "0.3.6"
@@ -2078,11 +1929,6 @@ cli-cursor@^2.1.0:
   dependencies:
     restore-cursor "^2.0.0"
 
-cli-spinners@^0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-0.1.2.tgz#bb764d88e185fb9e1e6a2a1f19772318f605e31c"
-  integrity sha1-u3ZNiOGF+54eaiofGXcjGPYF4xw=
-
 cli-truncate@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/cli-truncate/-/cli-truncate-0.2.1.tgz#9f15cfbb0705005369216c626ac7d05ab90dd574"
@@ -2149,13 +1995,13 @@ collection-visit@^1.0.0:
     object-visit "^1.0.0"
 
 color-convert@^1.9.0:
-  version "1.9.1"
-  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.1.tgz#c1261107aeb2f294ebffec9ed9ecad529a6097ed"
-  integrity sha512-mjGanIiwQJskCC18rPR6OmrZ6fm2Lc7PeGFYwCmy5J34wC6F1PzdGL6xeMfmgicfYcNLGuVFA3WzXtIDCQSZxQ==
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.3.tgz#bb71850690e1f136567de629d2d5471deda4c1e8"
+  integrity sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==
   dependencies:
-    color-name "^1.1.1"
+    color-name "1.1.3"
 
-color-name@^1.1.1:
+color-name@1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
   integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
@@ -2166,9 +2012,9 @@ colors@1.0.3:
   integrity sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=
 
 colors@^1.1.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
-  integrity sha1-FopHAXVran9RoSzgyXv6KMCE7WM=
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.3.2.tgz#2df8ff573dfbf255af562f8ce7181d6b971a359b"
+  integrity sha512-rhP0JSBGYvpcNQj4s5AdShMeE5ahMop96cTeDl/v9qQQm2fYClE2QXZRi8wLzc+GmXSxdIqqbOIAhyObEXDbfQ==
 
 combine-lists@^1.0.0:
   version "1.0.1"
@@ -2177,30 +2023,10 @@ combine-lists@^1.0.0:
   dependencies:
     lodash "^4.5.0"
 
-combine-source-map@~0.7.1:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/combine-source-map/-/combine-source-map-0.7.2.tgz#0870312856b307a87cc4ac486f3a9a62aeccc09e"
-  integrity sha1-CHAxKFazB6h8xKxIbzqaYq7MwJ4=
-  dependencies:
-    convert-source-map "~1.1.0"
-    inline-source-map "~0.6.0"
-    lodash.memoize "~3.0.3"
-    source-map "~0.5.3"
-
-combine-source-map@~0.8.0:
-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/combine-source-map/-/combine-source-map-0.8.0.tgz#a58d0df042c186fcf822a8e8015f5450d2d79a8b"
-  integrity sha1-pY0N8ELBhvz4IqjoAV9UUNLXmos=
-  dependencies:
-    convert-source-map "~1.1.0"
-    inline-source-map "~0.6.0"
-    lodash.memoize "~3.0.3"
-    source-map "~0.5.3"
-
-combined-stream@1.0.6, combined-stream@^1.0.5, combined-stream@~1.0.5, combined-stream@~1.0.6:
-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
-  integrity sha1-cj599ugBrFYTETp+RFqbactjKBg=
+combined-stream@^1.0.5, combined-stream@^1.0.6, combined-stream@~1.0.5, combined-stream@~1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.7.tgz#2d1d24317afb8abe95d6d2c0b07b57813539d828"
+  integrity sha512-brWl9y6vOB1xYPZcpZde3N9zDByXTosAeMDo4p1wzo6UMOX4vumB+TP1RZ76sfE6Md68Q0NJSrE/gbezd4Ul+w==
   dependencies:
     delayed-stream "~1.0.0"
 
@@ -2211,19 +2037,24 @@ commander@2.9.0:
   dependencies:
     graceful-readlink ">= 1.0.0"
 
-commander@^2.14.1, commander@^2.9.0, commander@~2.14.1:
-  version "2.14.1"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.14.1.tgz#2235123e37af8ca3c65df45b026dbd357b01b9aa"
-  integrity sha512-+YR16o3rK53SmWHU3rEM3tPAh2rwb1yPcQX5irVn7mb0gXbwuCCrnkbV5+PBfETdfg1vui07nM6PCG1zndcjQw==
+commander@^2.14.1, commander@^2.9.0:
+  version "2.19.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
+  integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
+
+commander@~2.17.1:
+  version "2.17.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
+  integrity sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==
 
 commitizen@^2.9.6:
-  version "2.9.6"
-  resolved "https://registry.yarnpkg.com/commitizen/-/commitizen-2.9.6.tgz#c0d00535ef264da7f63737edfda4228983fa2291"
-  integrity sha1-wNAFNe8mTaf2Nzft/aQiiYP6IpE=
+  version "2.10.1"
+  resolved "https://registry.yarnpkg.com/commitizen/-/commitizen-2.10.1.tgz#8c395def34a895f4e94952c2efc3c9eb4c3683bd"
+  integrity sha1-jDld7zSolfTpSVLC78PJ60w2g70=
   dependencies:
     cachedir "^1.1.0"
     chalk "1.1.3"
-    cz-conventional-changelog "1.2.0"
+    cz-conventional-changelog "2.0.0"
     dedent "0.6.0"
     detect-indent "4.0.0"
     find-node-modules "1.0.4"
@@ -2231,8 +2062,9 @@ commitizen@^2.9.6:
     fs-extra "^1.0.0"
     glob "7.1.1"
     inquirer "1.2.3"
-    lodash "4.17.2"
+    lodash "4.17.5"
     minimist "1.2.0"
+    opencollective "1.0.3"
     path-exists "2.1.0"
     shelljs "0.7.6"
     strip-json-comments "2.0.1"
@@ -2280,33 +2112,16 @@ concat-map@0.0.1:
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
-concat-stream@1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
-  integrity sha1-CqxmL9Ur54lk1VMvaUeE5wEQrPc=
-  dependencies:
-    inherits "^2.0.3"
-    readable-stream "^2.2.2"
-    typedarray "^0.0.6"
-
-concat-stream@^1.4.7, concat-stream@^1.6.0:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.1.tgz#261b8f518301f1d834e36342b9fea095d2620a26"
-  integrity sha512-gslSSJx03QKa59cIKqeJO9HQ/WZMotvYJCuaUULrLpjj8oG40kV2Z+gz82pVxlTkOADi4PJxQPPfhl1ELYrrXw==
+concat-stream@1.6.2, concat-stream@^1.4.7, concat-stream@^1.6.0:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
+  integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
   dependencies:
+    buffer-from "^1.0.0"
     inherits "^2.0.3"
     readable-stream "^2.2.2"
     typedarray "^0.0.6"
 
-concat-stream@~1.5.0, concat-stream@~1.5.1:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.5.2.tgz#708978624d856af41a5a741defdd261da752c266"
-  integrity sha1-cIl4Yk2FavQaWnQd790mHadSwmY=
-  dependencies:
-    inherits "~2.0.1"
-    readable-stream "~2.0.0"
-    typedarray "~0.0.5"
-
 connect@^3.6.0:
   version "3.6.6"
   resolved "https://registry.yarnpkg.com/connect/-/connect-3.6.6.tgz#09eff6c55af7236e137135a72574858b6786f524"
@@ -2329,16 +2144,11 @@ console-control-strings@^1.0.0, console-control-strings@~1.1.0:
   resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
   integrity sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=
 
-constants-browserify@^1.0.0, constants-browserify@~1.0.0:
+constants-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
   integrity sha1-wguW2MYXdIqvHBYCF2DNJ/y4y3U=
 
-content-type-parser@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/content-type-parser/-/content-type-parser-1.0.2.tgz#caabe80623e63638b2502fd4c7f12ff4ce2352e7"
-  integrity sha512-lM4l4CnMEwOLHAHr/P6MEZwZFPJFtAAKgL6pogbXmVZggIqXhdB6RbBtPOTsw2FcXwYhehRGERJmRrjOiIB8pQ==
-
 content-type@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
@@ -2352,32 +2162,32 @@ conventional-changelog-angular@^1.6.6:
     compare-func "^1.3.1"
     q "^1.5.1"
 
-conventional-changelog-atom@^0.2.4:
-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-atom/-/conventional-changelog-atom-0.2.4.tgz#4917759947f4db86073f9d3838a2d54302d5843d"
-  integrity sha512-4+hmbBwcAwx1XzDZ4aEOxk/ONU0iay10G0u/sld16ksgnRUHN7CxmZollm3FFaptr6VADMq1qxomA+JlpblBlg==
+conventional-changelog-atom@^0.2.8:
+  version "0.2.8"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-atom/-/conventional-changelog-atom-0.2.8.tgz#8037693455990e3256f297320a45fa47ee553a14"
+  integrity sha512-8pPZqhMbrnltNBizjoDCb/Sz85KyUXNDQxuAEYAU5V/eHn0okMBVjqc8aHWYpHrytyZWvMGbayOlDv7i8kEf6g==
   dependencies:
     q "^1.5.1"
 
-conventional-changelog-codemirror@^0.3.4:
-  version "0.3.4"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-codemirror/-/conventional-changelog-codemirror-0.3.4.tgz#debc43991d487d7964e65087fbbe034044bd51fb"
-  integrity sha512-8M7pGgQVzRU//vG3rFlLYqqBywOLxu9XM0/lc1/1Ll7RuKA79PgK9TDpuPmQDHFnqGS7D1YiZpC3Z0D9AIYExg==
+conventional-changelog-codemirror@^0.3.8:
+  version "0.3.8"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-codemirror/-/conventional-changelog-codemirror-0.3.8.tgz#a1982c8291f4ee4d6f2f62817c6b2ecd2c4b7b47"
+  integrity sha512-3HFZKtBXTaUCHvz7ai6nk2+psRIkldDoNzCsom0egDtVmPsvvHZkzjynhdQyULfacRSsBTaiQ0ol6nBOL4dDiQ==
   dependencies:
     q "^1.5.1"
 
-conventional-changelog-core@^2.0.5:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-core/-/conventional-changelog-core-2.0.5.tgz#45b6347c4c6512e1f163f7ff55c9f5bcb88fd990"
-  integrity sha512-lP1s7Z3NyEFcG78bWy7GG7nXsq9OpAJgo2xbyAlVBDweLSL5ghvyEZlkEamnAQpIUVK0CAVhs8nPvCiQuXT/VA==
+conventional-changelog-core@^2.0.11:
+  version "2.0.11"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-core/-/conventional-changelog-core-2.0.11.tgz#19b5fbd55a9697773ed6661f4e32030ed7e30287"
+  integrity sha512-HvTE6RlqeEZ/NFPtQeFLsIDOLrGP3bXYr7lFLMhCVsbduF1MXIe8OODkwMFyo1i9ku9NWBwVnVn0jDmIFXjDRg==
   dependencies:
-    conventional-changelog-writer "^3.0.4"
-    conventional-commits-parser "^2.1.5"
+    conventional-changelog-writer "^3.0.9"
+    conventional-commits-parser "^2.1.7"
     dateformat "^3.0.0"
     get-pkg-repo "^1.0.0"
-    git-raw-commits "^1.3.4"
+    git-raw-commits "^1.3.6"
     git-remote-origin-url "^2.0.0"
-    git-semver-tags "^1.3.4"
+    git-semver-tags "^1.3.6"
     lodash "^4.2.1"
     normalize-package-data "^2.3.5"
     q "^1.5.1"
@@ -2385,24 +2195,24 @@ conventional-changelog-core@^2.0.5:
     read-pkg-up "^1.0.1"
     through2 "^2.0.0"
 
-conventional-changelog-ember@^0.3.6:
-  version "0.3.6"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-ember/-/conventional-changelog-ember-0.3.6.tgz#f3825d7434168f3d9211b5532dc1d5769532b668"
-  integrity sha512-hBM1xb5IrjNtsjXaGryPF/Wn36cwyjkNeqX/CIDbJv/1kRFBHsWoSPYBiNVEpg8xE5fcK4DbPhGTDN2sVoPeiA==
+conventional-changelog-ember@^0.3.12:
+  version "0.3.12"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-ember/-/conventional-changelog-ember-0.3.12.tgz#b7d31851756d0fcb49b031dffeb6afa93b202400"
+  integrity sha512-mmJzA7uzbrOqeF89dMMi6z17O07ORTXlTMArnLG9ZTX4oLaKNolUlxFUFlFm9JUoVWajVpaHQWjxH1EOQ+ARoQ==
   dependencies:
     q "^1.5.1"
 
-conventional-changelog-eslint@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-eslint/-/conventional-changelog-eslint-1.0.5.tgz#8bae05ebbf574e6506caf7b37dc51ca21b74d220"
-  integrity sha512-7NUv+gMOS8Y49uPFRgF7kuLZqpnrKa2bQMZZsc62NzvaJmjUktnV03PYHuXhTDEHt5guvV9gyEFtUpgHCDkojg==
+conventional-changelog-eslint@^1.0.9:
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-eslint/-/conventional-changelog-eslint-1.0.9.tgz#b13cc7e4b472c819450ede031ff1a75c0e3d07d3"
+  integrity sha512-h87nfVh2fdk9fJIvz26wCBsbDC/KxqCc5wSlNMZbXcARtbgNbNDIF7Y7ctokFdnxkzVdaHsbINkh548T9eBA7Q==
   dependencies:
     q "^1.5.1"
 
-conventional-changelog-express@^0.3.4:
-  version "0.3.4"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-express/-/conventional-changelog-express-0.3.4.tgz#812a9cf778677e12f978ac9c40d85297c0bfcca9"
-  integrity sha512-M+UUb715TXT6l9vyMf4HYvAepnQn0AYTcPi6KHrFsd80E0HErjQnqStBg8i3+Qm7EV9+RyATQEnIhSzHbdQ7+A==
+conventional-changelog-express@^0.3.6:
+  version "0.3.6"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-express/-/conventional-changelog-express-0.3.6.tgz#4a6295cb11785059fb09202180d0e59c358b9c2c"
+  integrity sha512-3iWVtBJZ9RnRnZveNDzOD8QRn6g6vUif0qVTWWyi5nUIAbuN1FfPVyKdAlJJfp5Im+dE8Kiy/d2SpaX/0X678Q==
   dependencies:
     q "^1.5.1"
 
@@ -2420,26 +2230,26 @@ conventional-changelog-jscs@^0.1.0:
   dependencies:
     q "^1.4.1"
 
-conventional-changelog-jshint@^0.3.4:
-  version "0.3.4"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-jshint/-/conventional-changelog-jshint-0.3.4.tgz#b2de33cd0870d9af804ac6a4fded0ee25b69c9bb"
-  integrity sha512-CdrqwDgL56b176FVxHmhuOvnO1dRDQvrMaHyuIVjcFlOXukATz2wVT17g8jQU3LvybVbyXvJRbdD5pboo7/1KQ==
+conventional-changelog-jshint@^0.3.8:
+  version "0.3.8"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-jshint/-/conventional-changelog-jshint-0.3.8.tgz#9051c1ac0767abaf62a31f74d2fe8790e8acc6c8"
+  integrity sha512-hn9QU4ZI/5V50wKPJNPGT4gEWgiBFpV6adieILW4MaUFynuDYOvQ71EMSj3EznJyKi/KzuXpc9dGmX8njZMjig==
   dependencies:
     compare-func "^1.3.1"
     q "^1.5.1"
 
-conventional-changelog-preset-loader@^1.1.6:
-  version "1.1.6"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-preset-loader/-/conventional-changelog-preset-loader-1.1.6.tgz#b29af6332f9313857be36427623c9016bfeeaf33"
-  integrity sha512-yWPIP9wwsCKeUSPYApnApWhKIDjWRIX/uHejGS1tYfEsQR/bwpDFET7LYiHT+ujNbrlf6h1s3NlPGheOd4yJRQ==
+conventional-changelog-preset-loader@^1.1.8:
+  version "1.1.8"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-preset-loader/-/conventional-changelog-preset-loader-1.1.8.tgz#40bb0f142cd27d16839ec6c74ee8db418099b373"
+  integrity sha512-MkksM4G4YdrMlT2MbTsV2F6LXu/hZR0Tc/yenRrDIKRwBl/SP7ER4ZDlglqJsCzLJi4UonBc52Bkm5hzrOVCcw==
 
-conventional-changelog-writer@^3.0.4:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/conventional-changelog-writer/-/conventional-changelog-writer-3.0.4.tgz#705b46a8b8277bd7fd79cad8032095b5d803864c"
-  integrity sha512-EUf/hWiEj3IOa5Jk8XDzM6oS0WgijlYGkUfLc+mDnLH9RwpZqhYIBwgJHWHzEB4My013wx2FhmUu45P6tQrucw==
+conventional-changelog-writer@^3.0.9:
+  version "3.0.9"
+  resolved "https://registry.yarnpkg.com/conventional-changelog-writer/-/conventional-changelog-writer-3.0.9.tgz#4aecdfef33ff2a53bb0cf3b8071ce21f0e994634"
+  integrity sha512-n9KbsxlJxRQsUnK6wIBRnARacvNnN4C/nxnxCkH+B/R1JS2Fa+DiP1dU4I59mEDEjgnFaN2+9wr1P1s7GYB5/Q==
   dependencies:
     compare-func "^1.3.1"
-    conventional-commits-filter "^1.1.5"
+    conventional-commits-filter "^1.1.6"
     dateformat "^3.0.0"
     handlebars "^4.0.2"
     json-stringify-safe "^5.0.1"
@@ -2450,39 +2260,39 @@ conventional-changelog-writer@^3.0.4:
     through2 "^2.0.0"
 
 conventional-changelog@^1.1.3:
-  version "1.1.18"
-  resolved "https://registry.yarnpkg.com/conventional-changelog/-/conventional-changelog-1.1.18.tgz#ffe28798e4ddef5f6e2f74398e8248bcb233360b"
-  integrity sha512-swf5bqhm7PsY2cw6zxuPy6+rZiiGwEpQnrWki+L+z2oZI53QSYwU4brpljmmWss821AsiwmVL+7V6hP+ER+TBA==
+  version "1.1.24"
+  resolved "https://registry.yarnpkg.com/conventional-changelog/-/conventional-changelog-1.1.24.tgz#3d94c29c960f5261c002678315b756cdd3d7d1f0"
+  integrity sha512-2WcSUst4Y3Z4hHvoMTWXMJr/DmgVdLiMOVY1Kak2LfFz+GIz2KDp5naqbFesYbfXPmaZ5p491dO0FWZIJoJw1Q==
   dependencies:
     conventional-changelog-angular "^1.6.6"
-    conventional-changelog-atom "^0.2.4"
-    conventional-changelog-codemirror "^0.3.4"
-    conventional-changelog-core "^2.0.5"
-    conventional-changelog-ember "^0.3.6"
-    conventional-changelog-eslint "^1.0.5"
-    conventional-changelog-express "^0.3.4"
+    conventional-changelog-atom "^0.2.8"
+    conventional-changelog-codemirror "^0.3.8"
+    conventional-changelog-core "^2.0.11"
+    conventional-changelog-ember "^0.3.12"
+    conventional-changelog-eslint "^1.0.9"
+    conventional-changelog-express "^0.3.6"
     conventional-changelog-jquery "^0.1.0"
     conventional-changelog-jscs "^0.1.0"
-    conventional-changelog-jshint "^0.3.4"
-    conventional-changelog-preset-loader "^1.1.6"
+    conventional-changelog-jshint "^0.3.8"
+    conventional-changelog-preset-loader "^1.1.8"
 
 conventional-commit-types@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/conventional-commit-types/-/conventional-commit-types-2.2.0.tgz#5db95739d6c212acbe7b6f656a11b940baa68946"
   integrity sha1-XblXOdbCEqy+e29lahG5QLqmiUY=
 
-conventional-commits-filter@^1.1.5:
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/conventional-commits-filter/-/conventional-commits-filter-1.1.5.tgz#77aac065e3de9c1a74b801e8e25c9affb3184f65"
-  integrity sha512-mj3+WLj8UZE72zO9jocZjx8+W4Bwnx/KHoIz1vb4F8XUXj0XSjp8Y3MFkpRyIpsRiCBX+DkDjxGKF/nfeu7BGw==
+conventional-commits-filter@^1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/conventional-commits-filter/-/conventional-commits-filter-1.1.6.tgz#4389cd8e58fe89750c0b5fb58f1d7f0cc8ad3831"
+  integrity sha512-KcDgtCRKJCQhyk6VLT7zR+ZOyCnerfemE/CsR3iQpzRRFbLEs0Y6rwk3mpDvtOh04X223z+1xyJ582Stfct/0Q==
   dependencies:
     is-subset "^0.1.1"
     modify-values "^1.0.0"
 
-conventional-commits-parser@^2.1.5:
-  version "2.1.5"
-  resolved "https://registry.yarnpkg.com/conventional-commits-parser/-/conventional-commits-parser-2.1.5.tgz#9ac3a4ab221c0c3c9e9dd2c09ae01e6d1e1dabe0"
-  integrity sha512-jaAP61py+ISMF3/n3yIiIuY5h6mJlucOqawu5mLB1HaQADLvg/y5UB3pT7HSucZJan34lp7+7ylQPfbKEGmxrA==
+conventional-commits-parser@^2.1.7:
+  version "2.1.7"
+  resolved "https://registry.yarnpkg.com/conventional-commits-parser/-/conventional-commits-parser-2.1.7.tgz#eca45ed6140d72ba9722ee4132674d639e644e8e"
+  integrity sha512-BoMaddIEJ6B4QVMSDu9IkVImlGOSGA1I2BQyOZHeLQ6qVOJLcLKn97+fL6dGbzWEiqDzfH4OkcveULmeq2MHFQ==
   dependencies:
     JSONStream "^1.0.4"
     is-text-path "^1.0.0"
@@ -2499,11 +2309,6 @@ convert-source-map@^1.1.0:
   dependencies:
     safe-buffer "~5.1.1"
 
-convert-source-map@~1.1.0:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.1.3.tgz#4829c877e9fe49b3161f3bf3673888e204699860"
-  integrity sha1-SCnId+n+SbMWHzvzZziI4gRpmGA=
-
 cookie@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
@@ -2514,12 +2319,7 @@ copy-descriptor@^0.1.0:
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
-core-js@^2.2.0, core-js@^2.4.0:
-  version "2.5.3"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
-  integrity sha1-isw4NFgk8W2DZbfJtCWRaOjtYD4=
-
-core-js@^2.5.7:
+core-js@^2.2.0, core-js@^2.4.0, core-js@^2.5.7:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
   integrity sha512-RszJCAxg/PP6uzXVXL6BsxSXx/B05oJAQ2vkJRjyjrEcNVycaqOmNb5OTxZPE3xa5gwZduqza6L9JOCenh/Ecw==
@@ -2534,15 +2334,14 @@ corser@~2.0.0:
   resolved "https://registry.yarnpkg.com/corser/-/corser-2.0.1.tgz#8eda252ecaab5840dcd975ceb90d9370c819ff87"
   integrity sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c=
 
-cosmiconfig@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-4.0.0.tgz#760391549580bbd2df1e562bc177b13c290972dc"
-  integrity sha512-6e5vDdrXZD+t5v0L8CrurPeybg4Fmf+FCSYxXKYVAqLUtyCSbuyqE059d0kDthTNRzKVjL7QMgNpEUlsoYH3iQ==
+cosmiconfig@^5.0.2:
+  version "5.0.6"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.6.tgz#dca6cf680a0bd03589aff684700858c81abeeb39"
+  integrity sha512-6DWfizHriCrFWURP1/qyhsiFvYdlJzbCzmtFWh744+KyWsJo5+kPzUZZaMRSSItoYc0pxFX7gEO7ZC1/gN/7AQ==
   dependencies:
     is-directory "^0.3.1"
     js-yaml "^3.9.0"
     parse-json "^4.0.0"
-    require-from-string "^2.0.1"
 
 crc32-stream@^2.0.0:
   version "2.0.0"
@@ -2553,32 +2352,35 @@ crc32-stream@^2.0.0:
     readable-stream "^2.0.0"
 
 crc@^3.4.4:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/crc/-/crc-3.5.0.tgz#98b8ba7d489665ba3979f59b21381374101a1964"
-  integrity sha1-mLi6fUiWZbo5efWbITgTdBAaGWQ=
+  version "3.8.0"
+  resolved "https://registry.yarnpkg.com/crc/-/crc-3.8.0.tgz#ad60269c2c856f8c299e2c4cc0de4556914056c6"
+  integrity sha512-iX3mfgcTMIq3ZKLIsVFAbv7+Mc10kxabAGQb8HvjA1o3T1PIYprbakQ65d3I+2HGHt6nSKkM9PYjgoJO2KcFBQ==
+  dependencies:
+    buffer "^5.1.0"
 
 create-ecdh@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.0.tgz#888c723596cdf7612f6498233eebd7a35301737d"
-  integrity sha1-iIxyNZbN92EvZJgjPuvXo1MBc30=
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.3.tgz#c9111b6f33045c4697f144787f9254cdc77c45ff"
+  integrity sha512-GbEHQPMOswGpKXM9kCWVrremUcBmjteUaQ01T9rkKCPDXfUHX0IoP9LpHYo2NPFampa4e+/pFDc3jQdxrxQLaw==
   dependencies:
     bn.js "^4.1.0"
     elliptic "^6.0.0"
 
 create-hash@^1.1.0, create-hash@^1.1.2:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.1.3.tgz#606042ac8b9262750f483caddab0f5819172d8fd"
-  integrity sha1-YGBCrIuSYnUPSDyt2rD1gZFy2P0=
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
+  integrity sha512-z00bCGNHDG8mHAkP7CtT1qVu+bFQUPjYq/4Iv3C3kWjTFV10zIjfSoeqXo9Asws8gwSHDGj/hl2u4OGIjapeCg==
   dependencies:
     cipher-base "^1.0.1"
     inherits "^2.0.1"
-    ripemd160 "^2.0.0"
+    md5.js "^1.3.4"
+    ripemd160 "^2.0.1"
     sha.js "^2.4.0"
 
 create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
-  version "1.1.6"
-  resolved "https://registry.yarnpkg.com/create-hmac/-/create-hmac-1.1.6.tgz#acb9e221a4e17bdb076e90657c42b93e3726cf06"
-  integrity sha1-rLniIaThe9sHbpBlfEK5PjcmzwY=
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/create-hmac/-/create-hmac-1.1.7.tgz#69170c78b3ab957147b2b8b04572e47ead2243ff"
+  integrity sha512-MJG9liiZ+ogc4TzUwuvbER1JRdgvUFSB5+VR/g5h82fGaIRWMWddtKBHi7/sVhfjQZ6SehlyhvQYrcYkaUIpLg==
   dependencies:
     cipher-base "^1.0.3"
     create-hash "^1.1.0"
@@ -2610,7 +2412,7 @@ cryptiles@3.x.x:
   dependencies:
     boom "5.x.x"
 
-crypto-browserify@^3.0.0, crypto-browserify@^3.11.0:
+crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
   integrity sha512-fz4spIh+znjO2VjL+IdhEpRJ3YN6sMzITSBijk6FK2UvTqruSQW+/cCZTSNsMiZNvUeq0CqurF+dAbyiGOY6Wg==
@@ -2628,27 +2430,15 @@ crypto-browserify@^3.0.0, crypto-browserify@^3.11.0:
     randomfill "^1.0.3"
 
 css@~2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/css/-/css-2.2.1.tgz#73a4c81de85db664d4ee674f7d47085e3b2d55dc"
-  integrity sha1-c6TIHehdtmTU7mdPfUcIXjstVdw=
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/css/-/css-2.2.4.tgz#c646755c73971f2bba6a601e2cf2fd71b1298929"
+  integrity sha512-oUnjmWpy0niI3x/mPL8dVEI1l7MnG3+HHyRPHf+YFSbK+svOhXpmSOcDURUh2aOCgl2grzrOPt1nHLuCVFULLw==
   dependencies:
-    inherits "^2.0.1"
-    source-map "^0.1.38"
-    source-map-resolve "^0.3.0"
+    inherits "^2.0.3"
+    source-map "^0.6.1"
+    source-map-resolve "^0.5.2"
     urix "^0.1.0"
 
-cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0":
-  version "0.3.2"
-  resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.2.tgz#b8036170c79f07a90ff2f16e22284027a243848b"
-  integrity sha1-uANhcMefB6kP8vFuIihAJ6JDhIs=
-
-"cssstyle@>= 0.2.37 < 0.3.0":
-  version "0.2.37"
-  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-0.2.37.tgz#541097234cb2513c83ceed3acddc27ff27987d54"
-  integrity sha1-VBCXI0yyUTyDzu06zdwn/yeYfVQ=
-  dependencies:
-    cssom "0.3.x"
-
 currently-unhandled@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
@@ -2661,10 +2451,10 @@ custom-event@~1.0.0:
   resolved "https://registry.yarnpkg.com/custom-event/-/custom-event-1.0.1.tgz#5d02a46850adf1b4a317946a3928fccb5bfd0425"
   integrity sha1-XQKkaFCt8bSjF5RqOSj8y1v9BCU=
 
-cz-conventional-changelog@1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-1.2.0.tgz#2bca04964c8919b23f3fd6a89ef5e6008b31b3f8"
-  integrity sha1-K8oElkyJGbI/P9aonvXmAIsxs/g=
+cz-conventional-changelog@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-2.0.0.tgz#55a979afdfe95e7024879d2a0f5924630170b533"
+  integrity sha1-Val5r9/pXnAkh50qD1kkYwFwtTM=
   dependencies:
     conventional-commit-types "^2.0.0"
     lodash.map "^4.5.1"
@@ -2743,27 +2533,34 @@ de-indent@^1.0.2:
   resolved "https://registry.yarnpkg.com/de-indent/-/de-indent-1.0.2.tgz#b2038e846dc33baa5796128d0804b455b8c1e21d"
   integrity sha1-sgOOhG3DO6pXlhKNCAS0VbjB4h0=
 
-debug@2, debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@~2.6.4, debug@~2.6.6:
+debug@2, debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@~2.6.4, debug@~2.6.6:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
   dependencies:
     ms "2.0.0"
 
-debug@2.2.0, debug@~2.2.0:
+debug@2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
   integrity sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=
   dependencies:
     ms "0.7.1"
 
-debug@^3.0.1, debug@^3.1.0, debug@~3.1.0:
+debug@3.1.0, debug@=3.1.0, debug@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
   dependencies:
     ms "2.0.0"
 
+debug@^3.1.0:
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
+  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
+  dependencies:
+    ms "^2.1.1"
+
 decamelize-keys@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
@@ -2799,10 +2596,10 @@ deep-eql@0.1.3:
   dependencies:
     type-detect "0.1.1"
 
-deep-extend@~0.4.0:
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
-  integrity sha1-SLaZwn4zS/ifEIkr5DL25MfTSn8=
+deep-extend@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
+  integrity sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==
 
 deep-is@~0.1.3:
   version "0.1.3"
@@ -2838,12 +2635,7 @@ define-property@^2.0.2:
     is-descriptor "^1.0.2"
     isobject "^3.0.1"
 
-defined@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
-  integrity sha1-yY2bzvdWdBiOEQlpFRGZ45sfppM=
-
-degenerator@~1.0.2:
+degenerator@^1.0.4, degenerator@~1.0.2:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/degenerator/-/degenerator-1.0.4.tgz#fcf490a37ece266464d9cc431ab98c5819ced095"
   integrity sha1-/PSQo37OJmRk2cxDGrmMWBnO0JU=
@@ -2887,26 +2679,11 @@ delegates@^1.0.0:
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
   integrity sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=
 
-depd@1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.1.tgz#5783b4e1c459f06fa5ca27f991f3d06e7a310359"
-  integrity sha1-V4O04cRZ8G+lyif5kfPQbnoxA1k=
-
-depd@~1.1.1:
+depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
   integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
 
-deps-sort@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/deps-sort/-/deps-sort-2.0.0.tgz#091724902e84658260eb910748cccd1af6e21fb5"
-  integrity sha1-CRckkC6EZYJg65EHSMzNGvbiH7U=
-  dependencies:
-    JSONStream "^1.0.3"
-    shasum "^1.0.0"
-    subarg "^1.0.0"
-    through2 "^2.0.0"
-
 des.js@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/des.js/-/des.js-1.0.0.tgz#c074d2e2aa6a8a9a07dbd61f9a15c2cd83ec8ecc"
@@ -2934,14 +2711,6 @@ detect-libc@^1.0.2:
   resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
   integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
 
-detective@^4.0.0:
-  version "4.7.1"
-  resolved "https://registry.yarnpkg.com/detective/-/detective-4.7.1.tgz#0eca7314338442febb6d65da54c10bb1c82b246e"
-  integrity sha512-H6PmeeUcZloWtdt4DAkFyzFL94arpHr3NOwwmVILFiy+9Qd4JTxxXrzfyGk/lmct2qVGBwTSwSXagqu2BxmWig==
-  dependencies:
-    acorn "^5.2.1"
-    defined "^1.0.0"
-
 di@^0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/di/-/di-0.0.1.tgz#806649326ceaa7caa3306d75d985ea2748ba913c"
@@ -2952,15 +2721,10 @@ diff@1.4.0:
   resolved "https://registry.yarnpkg.com/diff/-/diff-1.4.0.tgz#7f28d2eb9ee7b15a97efd89ce63dcfdaa3ccbabf"
   integrity sha1-fyjS657nsVqX79ic5j3P2qPMur8=
 
-diff@^3.2.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
-  integrity sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==
-
 diffie-hellman@^5.0.0:
-  version "5.0.2"
-  resolved "https://registry.yarnpkg.com/diffie-hellman/-/diffie-hellman-5.0.2.tgz#b5835739270cfe26acf632099fded2a07f209e5e"
-  integrity sha1-tYNXOScM/ias9jIJn97SoH8gnl4=
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/diffie-hellman/-/diffie-hellman-5.0.3.tgz#40e8ee98f55a2149607146921c63e1ae5f3d2875"
+  integrity sha512-kqag/Nl+f3GwyK25fhUMYj81BUOrZ9IuJsjIcDE5icNM9FJHAVm3VcUDxdLPoQtTuUylWm6ZIknYJwwaPxsUzg==
   dependencies:
     bn.js "^4.1.0"
     miller-rabin "^4.0.0"
@@ -2996,12 +2760,12 @@ domain-browser@^1.1.1:
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
   integrity sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==
 
-domain-browser@~1.1.0:
-  version "1.1.7"
-  resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.1.7.tgz#867aa4b093faa05f1de08c06f4d7b21fdf8698bc"
-  integrity sha1-hnqksJP6oF8d4IwG9NeyH9+GmLw=
+domelementtype@1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.2.1.tgz#578558ef23befac043a1abb0db07635509393479"
+  integrity sha512-SQVCLFS2E7G5CRCMdn6K9bIhRj1bS6QBWZfF0TUPh4V/BbqrQ619IdSS3/izn0FZ+9l+uODzaZjb08fjOfablA==
 
-domelementtype@1, domelementtype@^1.3.0:
+domelementtype@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
   integrity sha1-sXrtguirWeUt2cGbF1bg/BhyBMI=
@@ -3011,17 +2775,10 @@ domelementtype@~1.1.1:
   resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
   integrity sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs=
 
-domexception@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/domexception/-/domexception-1.0.1.tgz#937442644ca6a31261ef36e3ec677fe805582c90"
-  integrity sha512-raigMkn7CJNNo6Ihro1fzG7wr3fHuYVytzquZKX5n0yizGsTcYgzdIUwj1X9pK0VvjeihV+XiclP+DjwbsSKug==
-  dependencies:
-    webidl-conversions "^4.0.2"
-
 domhandler@^2.3.0:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.1.tgz#892e47000a99be55bbf3774ffea0561d8879c259"
-  integrity sha1-iS5HAAqZvlW783dP/qBWHYh5wlk=
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.2.tgz#8805097e933d65e85546f726d60f5eb88b44f803"
+  integrity sha512-JiK04h0Ht5u/80fdLMCEmV4zkNh2BcoMFBmZ/91WtYZ8qVXSKjiw7fXMgFPnHcSZgOo3XdinHvmnDUeMf5R4wA==
   dependencies:
     domelementtype "1"
 
@@ -3045,29 +2802,23 @@ double-ended-queue@^2.1.0-0:
   resolved "https://registry.yarnpkg.com/double-ended-queue/-/double-ended-queue-2.1.0-0.tgz#103d3527fd31528f40188130c841efdd78264e5c"
   integrity sha1-ED01J/0xUo9AGIEwyEHv3XgmTlw=
 
-duplexer2@^0.1.2, duplexer2@~0.1.0, duplexer2@~0.1.2:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/duplexer2/-/duplexer2-0.1.4.tgz#8b12dab878c0d69e3e7891051662a32fc6bddcc1"
-  integrity sha1-ixLauHjA1p4+eJEFFmKjL8a93ME=
-  dependencies:
-    readable-stream "^2.0.2"
-
 ecc-jsbn@~0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
-  integrity sha1-D8c6ntXw1Tw4GTOYUj735UN3dQU=
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"
+  integrity sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=
   dependencies:
     jsbn "~0.1.0"
+    safer-buffer "^2.1.0"
 
 ecstatic@^3.0.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-3.2.0.tgz#1b1aee1ca7c6b99cfb5cf6c9b26b481b90c4409f"
-  integrity sha512-Goilx/2cfU9vvfQjgtNgc2VmJAD8CasQ6rZDqCd2u4Hsyd/qFET6nBf60jiHodevR3nl3IGzNKtrzPXWP88utQ==
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/ecstatic/-/ecstatic-3.3.0.tgz#91cd417d152abf85b37b1ab3ebf3bd25cdc64e80"
+  integrity sha512-EblWYTd+wPIAMQ0U4oYJZ7QBypT9ZUIwpqli0bKDjeIIQnXDBK2dXtZ9yzRCOlkW1HkO8gn7/FxLK1yPIW17pw==
   dependencies:
     he "^1.1.1"
-    mime "^1.4.1"
+    mime "^1.6.0"
     minimist "^1.1.0"
-    url-join "^2.0.2"
+    url-join "^2.0.5"
 
 ee-first@1.1.1:
   version "1.1.1"
@@ -3079,10 +2830,10 @@ ejs@2.5.7:
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.7.tgz#cc872c168880ae3c7189762fd5ffc00896c9518a"
   integrity sha1-zIcsFoiArjxxiXYv1f/ACJbJUYo=
 
-electron-to-chromium@^1.3.79:
-  version "1.3.79"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.79.tgz#774718f06284a4bf8f578ac67e74508fe659f13a"
-  integrity sha512-LQdY3j4PxuUl6xfxiFruTSlCniTrTrzAd8/HfsLEMi0PUpaQ0Iy+Pr4N4VllDYjs0Hyu2lkTbvzqlG+PX9NsNw==
+electron-to-chromium@^1.3.80:
+  version "1.3.81"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.81.tgz#32af69206ef78973b6a6771b0c8450c2ce253913"
+  integrity sha512-+rym2xtzwPWmoi8AYRrCdW65QOT0vfUHjZb5mjgh0VLyj31pGM3CpP3znKhQNBzQaWujR/KEl/mfC2lnKYgADA==
 
 elegant-spinner@^1.0.1:
   version "1.0.1"
@@ -3090,9 +2841,9 @@ elegant-spinner@^1.0.1:
   integrity sha1-2wQ1IcldfjA/2PNFvtwzSc+wcp4=
 
 elliptic@^6.0.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
-  integrity sha1-ysmvh2LIWDYYcAPI3+GT5eLq5d8=
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.1.tgz#c2d0b7776911b86722c632c3c06c60f2f819939a"
+  integrity sha512-BsXLz5sqX8OHcsh7CqBMztyXARmGQ3LWPtGjJi6DiJHq5C/qvi9P3OqgswKSDftbu8+IoI/QDTAm2fFnQ9SZSQ==
   dependencies:
     bn.js "^4.4.0"
     brorand "^1.0.1"
@@ -3112,6 +2863,13 @@ encodeurl@~1.0.1:
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
   integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
 
+encoding@^0.1.11:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
+  integrity sha1-U4tm8+5izRq1HsMjgp0flIDHS+s=
+  dependencies:
+    iconv-lite "~0.4.13"
+
 end-of-stream@^1.0.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.1.tgz#ed29634d19baba463b6ce6b80a37213eab71ec43"
@@ -3120,9 +2878,9 @@ end-of-stream@^1.0.0:
     once "^1.4.0"
 
 engine.io-client@~3.1.0:
-  version "3.1.5"
-  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.1.5.tgz#85de17666560327ef1817978f6e3f8101ded2c47"
-  integrity sha512-Rv9vgb83zrNVhRircUXHi4mtbJhgy2oWtJOCZEbCLFs2HiDSWmh/aOEj8TwoKsn8zXGqTuQuPSoU4v3E10bR6A==
+  version "3.1.6"
+  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.1.6.tgz#5bdeb130f8b94a50ac5cbeb72583e7a4a063ddfd"
+  integrity sha512-hnuHsFluXnsKOndS4Hv6SvUrgdYx1pk2NqfaDMW+GWdgfU3+/V25Cj7I8a0x92idSpa5PIhJRKxPvp9mnoLsfg==
   dependencies:
     component-emitter "1.2.1"
     component-inherit "0.0.3"
@@ -3177,9 +2935,9 @@ ent@~2.2.0:
   integrity sha1-6WQhkyWiHQX0RGai9obtbOX13R0=
 
 entities@^1.1.1, entities@~1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.1.tgz#6e5c2d0a5621b5dadaecef80b90edfb5cd7772f0"
-  integrity sha1-blwtClYhtdra7O+AuQ7ftc13cvA=
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.2.tgz#bdfa735299664dfafd34529ed4f8522a275fea56"
+  integrity sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==
 
 errno@^0.1.3:
   version "0.1.7"
@@ -3189,9 +2947,9 @@ errno@^0.1.3:
     prr "~1.0.1"
 
 error-ex@^1.2.0, error-ex@^1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
-  integrity sha1-+FWobOYa3E6GIcPNoh56dhLDqNw=
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
+  integrity sha512-7dFHNmqeFSEt2ZBsCriorKnn3Z2pj+fd9kmI6QoWw4//DL+icEBfc0U7qJCisqrTsKTjw4fNFy2pW9OqStD84g==
   dependencies:
     is-arrayish "^0.2.1"
 
@@ -3216,12 +2974,13 @@ es-to-primitive@^1.1.1:
     is-symbol "^1.0.2"
 
 es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
-  version "0.10.39"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.39.tgz#fca21b67559277ca4ac1a1ed7048b107b6f76d87"
-  integrity sha512-AlaXZhPHl0po/uxMx1tyrlt1O86M6D5iVaDH8UgLfgek4kXTX6vzsRfJQWC2Ku+aG8pkw1XWzh9eTkwfVrsD5g==
+  version "0.10.46"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.46.tgz#efd99f67c5a7ec789baa3daa7f79870388f7f572"
+  integrity sha512-24XxRvJXNFwEMpJb3nOkiRJKRoupmjYmOPVlI65Qy2SrtxwOTB+g6ODjBKOtwEHbYrhWRty9xxOWLNdClT2djw==
   dependencies:
     es6-iterator "~2.0.3"
     es6-symbol "~3.1.1"
+    next-tick "1"
 
 es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
   version "2.0.3"
@@ -3245,9 +3004,16 @@ es6-map@^0.1.3:
     event-emitter "~0.3.5"
 
 es6-promise@^4.0.3, es6-promise@^4.1.0:
-  version "4.2.4"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
-  integrity sha512-/NdNZVJg+uZgtm9eS3O6lrOLYmQag2DjdEXuPaHlZ6RuVqgqaVZfgYCepEIKsLqwdQArOPtC3XzRLqGGfT8KQQ==
+  version "4.2.5"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.5.tgz#da6d0d5692efb461e082c14817fe2427d8f5d054"
+  integrity sha512-n6wvpdE43VFtJq+lUDYDBFUwV8TZbuGXLV4D6wKafg13ldznKsyEvatubnmUe31zcvelSzOHF+XbaT+Bl9ObDg==
+
+es6-promisify@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
+  integrity sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=
+  dependencies:
+    es6-promise "^4.0.3"
 
 es6-set@~0.1.5:
   version "0.1.5"
@@ -3300,10 +3066,10 @@ escodegen@1.8.x:
   optionalDependencies:
     source-map "~0.2.0"
 
-escodegen@1.x.x, escodegen@^1.8.1, escodegen@^1.9.0:
-  version "1.9.1"
-  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.9.1.tgz#dbae17ef96c8e4bedb1356f4504fa4cc2f7cb7e2"
-  integrity sha512-6hTjO1NAWkHnDk3OqQ4YrCuwwmGHL9S3nPlzBOUG/R44rda3wLNrfvQ5fkSGjyhHFKM7ALPKcKGrwvCLe0lC7Q==
+escodegen@1.x.x, escodegen@^1.8.1:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.11.0.tgz#b27a9389481d5bfd5bec76f7bb1eb3f8f4556589"
+  integrity sha512-IeMV45ReixHS53K/OmfKAIztN/igDHzTJUhZM3k1jMhIZWjk45SMwAtBsEXiJp3vSPmTcu6CXn7mDvFHRN66fw==
   dependencies:
     esprima "^3.1.3"
     estraverse "^4.2.0"
@@ -3334,23 +3100,23 @@ eslint-loader@^1.7.1:
     rimraf "^2.6.1"
 
 eslint-plugin-flowtype@^2.34.0:
-  version "2.46.1"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.46.1.tgz#c4f81d580cd89c82bc3a85a1ccf4ae3a915143a4"
-  integrity sha512-GJzxW7QwiIiW0ZA/+nY+N5TuK3es4Uei0D4xuy14dLZBYEFhM6e7c0J1u4+/iwfPqFtkr5a0oSApnSKF4U6KHw==
+  version "2.50.3"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.50.3.tgz#61379d6dce1d010370acd6681740fd913d68175f"
+  integrity sha512-X+AoKVOr7Re0ko/yEXyM5SSZ0tazc6ffdIOocp2fFUlWoDt7DV0Bz99mngOkAFLOAWjqRA5jPwqUCbrx13XoxQ==
   dependencies:
-    lodash "^4.15.0"
+    lodash "^4.17.10"
 
 eslint-plugin-html@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-html/-/eslint-plugin-html-4.0.2.tgz#0e56149e42c2ffc3f0df6261a8bb96b1a9f2280d"
-  integrity sha512-CrQd0F8GWdNWnu4PFrYZl+LjUCXNVy2h0uhDMtnf/7VKc9HRcnkXSrlg0BSGfptZPSzmwnnwCaREAa9+fnQhYw==
+  version "4.0.6"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-html/-/eslint-plugin-html-4.0.6.tgz#724bb9272efb4df007dfee8dfb269ed83577e5b4"
+  integrity sha512-nj6A9oK+7BKnMm0E7dMRH3r75BfpkXtcVIb3pFC4AcDdBTNyg2NGxHXyFNT1emW4VsR7P2SZvRXXQtUR+kY08w==
   dependencies:
     htmlparser2 "^3.8.2"
 
 eslint-plugin-jasmine@^2.8.4:
-  version "2.9.3"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-jasmine/-/eslint-plugin-jasmine-2.9.3.tgz#05bf3ab827d791691ceee8c21959b9c0d56a6b0c"
-  integrity sha1-Bb86uCfXkWkc7ujCGVm5wNVqaww=
+  version "2.10.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-jasmine/-/eslint-plugin-jasmine-2.10.1.tgz#5733b709e751f4bc40e31e1c16989bd2cdfbec97"
+  integrity sha1-VzO3CedR9LxA4x4cFpib0s377Jc=
 
 eslint-plugin-vue-libs@^2.0.1:
   version "2.1.0"
@@ -3359,7 +3125,7 @@ eslint-plugin-vue-libs@^2.0.1:
   dependencies:
     eslint-plugin-html "^4.0.1"
 
-eslint-scope@^3.7.1, eslint-scope@~3.7.1:
+eslint-scope@3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
   integrity sha1-PWPD7f2gLgbgGkUq2IyqzHzctug=
@@ -3367,15 +3133,23 @@ eslint-scope@^3.7.1, eslint-scope@~3.7.1:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-scope@^3.7.1:
+  version "3.7.3"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.3.tgz#bb507200d3d17f60247636160b4826284b108535"
+  integrity sha512-W+B0SvF4gamyCTmUc+uITPY0989iXVfKvhwtmJocTaYoc/3khEHmEmvfY/Gn9HA9VV75jrQECsHizkNw1b68FA==
+  dependencies:
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
 eslint-visitor-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
   integrity sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==
 
 eslint@^4.13.1:
-  version "4.18.2"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.18.2.tgz#0f81267ad1012e7d2051e186a9004cc2267b8d45"
-  integrity sha512-qy4i3wODqKMYfz9LUI8N2qYDkHkoieTbiHpMrYUI/WbjhXJQr7lI4VngixTgaG+yHX+NBCv7nW4hA0ShbvaNKw==
+  version "4.19.1"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.19.1.tgz#32d1d653e1d90408854bfb296f076ec7e186a300"
+  integrity sha512-bT3/1x1EbZB7phzYu7vCr1v3ONuzDtX8WjuM9c0iYxe+cq+pwcKEoQjl7zd3RpC6YOLgnSy3cTN58M2jcoPDIQ==
   dependencies:
     ajv "^5.3.0"
     babel-code-frame "^6.22.0"
@@ -3386,7 +3160,7 @@ eslint@^4.13.1:
     doctrine "^2.1.0"
     eslint-scope "^3.7.1"
     eslint-visitor-keys "^1.0.0"
-    espree "^3.5.2"
+    espree "^3.5.4"
     esquery "^1.0.0"
     esutils "^2.0.2"
     file-entry-cache "^2.0.0"
@@ -3408,6 +3182,7 @@ eslint@^4.13.1:
     path-is-inside "^1.0.2"
     pluralize "^7.0.0"
     progress "^2.0.0"
+    regexpp "^1.0.1"
     require-uncached "^1.0.3"
     semver "^5.3.0"
     strip-ansi "^4.0.0"
@@ -3415,7 +3190,7 @@ eslint@^4.13.1:
     table "4.0.2"
     text-table "~0.2.0"
 
-espree@^3.5.2:
+espree@^3.5.4:
   version "3.5.4"
   resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
   integrity sha512-yAcIQxtmMiB/jL32dzEp2enBeidsB7xWPLNiw3IIkpVds1P+h7qF9YwJq1yUNzp2OKXgAprs4F61ih66UsoD1A==
@@ -3434,14 +3209,14 @@ esprima@3.x.x, esprima@^3.1.3:
   integrity sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM=
 
 esprima@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
-  integrity sha512-oftTcaMu/EGrEIu904mWteKIv8vMuOgGYo7EhVJJN00R/EED9DCua/xxHRdYnKtcECzVg7xOWhflvJMnqcFZjw==
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
+  integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
 
 esquery@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
-  integrity sha1-z7qLV9f7qT8XKYqKAGoEzaE9gPo=
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.1.tgz#406c51658b1f5991a5f9b62b1dc25b00e3e5c708"
+  integrity sha512-SmiyZ5zIWH9VM+SRUReLS5Q8a7GxtRdxEBVZpm98rJM7Sb+A9DVCndXfkeFUd3byderg+EbDkfnevfCwynWaNA==
   dependencies:
     estraverse "^4.0.0"
 
@@ -3467,16 +3242,6 @@ estree-walker@^0.2.1:
   resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.2.1.tgz#bdafe8095383d8414d5dc2ecf4c9173b6db9412e"
   integrity sha1-va/oCVOD2EFNXcLs9MkXO225QS4=
 
-estree-walker@^0.3.0:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.3.1.tgz#e6b1a51cf7292524e7237c312e5fe6660c1ce1aa"
-  integrity sha1-5rGlHPcpJSTnI3wxLl/mZgwc4ao=
-
-estree-walker@^0.5.0:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.5.1.tgz#64fc375053abc6f57d73e9bd2f004644ad3c5854"
-  integrity sha512-7HgCgz1axW7w5aOvgOQkoR1RMBkllygJrssU3BvymKQ95lxXYv6Pon17fBRDm9qhkvXZGijOULoSF9ShOk/ZLg==
-
 estree-walker@^0.5.2:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/estree-walker/-/estree-walker-0.5.2.tgz#d3850be7529c9580d815600b53126515e146dd39"
@@ -3495,12 +3260,12 @@ event-emitter@~0.3.5:
     d "1"
     es5-ext "~0.10.14"
 
-eventemitter3@1.x.x:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-1.2.0.tgz#1c86991d816ad1e504750e73874224ecf3bec508"
-  integrity sha1-HIaZHYFq0eUEdQ5zh0Ik7PO+xQg=
+eventemitter3@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
+  integrity sha512-ivIvhpq/Y0uSjcHDcOIccjmYjGLcP09MFGE7ysAwkAvkXfpZlC985pH2/ui64DKazbTW/4kN3yqozUxlXzI6cA==
 
-events@^1.0.0, events@~1.1.0:
+events@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
   integrity sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ=
@@ -3613,18 +3378,6 @@ expand-tilde@^1.2.2:
   dependencies:
     os-homedir "^1.0.1"
 
-expect@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/expect/-/expect-22.4.0.tgz#371edf1ae15b83b5bf5ec34b42f1584660a36c16"
-  integrity sha512-Fiy862jT3qc70hwIHwwCBNISmaqBrfWKKrtqyMJ6iwZr+6KXtcnHojZFtd63TPRvRl8EQTJ+YXYy2lK6/6u+Hw==
-  dependencies:
-    ansi-styles "^3.2.0"
-    jest-diff "^22.4.0"
-    jest-get-type "^22.1.0"
-    jest-matcher-utils "^22.4.0"
-    jest-message-util "^22.4.0"
-    jest-regex-util "^22.1.0"
-
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
@@ -3640,12 +3393,7 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
     assign-symbols "^1.0.0"
     is-extendable "^1.0.1"
 
-extend@3, extend@^3.0.0, extend@~3.0.0, extend@~3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
-  integrity sha1-p1Xqe8Gt/MWjHOfnYtuq3F5jZEQ=
-
-extend@~3.0.2:
+extend@3, extend@^3.0.0, extend@~3.0.0, extend@~3.0.1, extend@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
   integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
@@ -3659,10 +3407,10 @@ external-editor@^1.1.0:
     spawn-sync "^1.0.15"
     tmp "^0.0.29"
 
-external-editor@^2.0.4:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.1.0.tgz#3d026a21b7f95b5726387d4200ac160d372c3b48"
-  integrity sha512-E44iT5QVOUJBKij4IIV3uvxuNlbKS38Tw1HiupxEIHPv9qtC2PrDYohbXV5U+1jnfIXttny8gUhj+oZvflFlzA==
+external-editor@^2.0.1, external-editor@^2.0.4:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
+  integrity sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==
   dependencies:
     chardet "^0.4.0"
     iconv-lite "^0.4.17"
@@ -3689,14 +3437,14 @@ extglob@^2.0.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-extract-zip@^1.6.5:
-  version "1.6.6"
-  resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.6.tgz#1290ede8d20d0872b429fd3f351ca128ec5ef85c"
-  integrity sha1-EpDt6NINCHK0Kf0/NRyhKOxe+Fw=
+extract-zip@^1.6.5, extract-zip@^1.6.7:
+  version "1.6.7"
+  resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.7.tgz#a840b4b8af6403264c8db57f4f1a74333ef81fe9"
+  integrity sha1-qEC0uK9kAyZMjbV/Txp0Mz74H+k=
   dependencies:
-    concat-stream "1.6.0"
+    concat-stream "1.6.2"
     debug "2.6.9"
-    mkdirp "0.5.0"
+    mkdirp "0.5.1"
     yauzl "2.4.1"
 
 extsprintf@1.3.0:
@@ -3714,6 +3462,11 @@ fast-deep-equal@^1.0.0:
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
   integrity sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=
 
+fast-deep-equal@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz#7b05218ddf9667bf7f370bf7fdb2cb15fdd0aa49"
+  integrity sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=
+
 fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
@@ -3773,13 +3526,13 @@ filename-regex@^2.0.0:
   integrity sha1-wcS5vuPglyXdsQa3XB4wH+LxiyY=
 
 fill-range@^2.1.0:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.3.tgz#50b77dfd7e469bc7492470963699fe7a8485a723"
-  integrity sha1-ULd9/X5Gm8dJJHCWNpn+eoSFpyM=
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.4.tgz#eb1e773abb056dcd8df2bfdf6af59b8b3a936565"
+  integrity sha512-cnrcCbj01+j2gTG921VZPnHbjmdAf8oQV/iGeV2kZxGSyfYjjTyY79ErsK1WJWMpw6DaApEX72binqJE+/d+5Q==
   dependencies:
     is-number "^2.1.0"
     isobject "^2.0.0"
-    randomatic "^1.1.3"
+    randomatic "^3.0.0"
     repeat-element "^1.1.2"
     repeat-string "^1.5.2"
 
@@ -3904,6 +3657,13 @@ follow-redirects@1.0.0:
   dependencies:
     debug "^2.2.0"
 
+follow-redirects@^1.0.0:
+  version "1.5.9"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.9.tgz#c9ed9d748b814a39535716e531b9196a845d89c6"
+  integrity sha512-Bh65EZI/RU8nx0wbYF9shkFZlqLP+6WT/5FnA3cE/djNSuKNHJEinGGZgu/cQEkeeb2GdFOgenAmn8qaqYke2w==
+  dependencies:
+    debug "=3.1.0"
+
 for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
@@ -3930,22 +3690,13 @@ form-data@~2.0.0:
     combined-stream "^1.0.5"
     mime-types "^2.1.11"
 
-form-data@~2.1.1:
-  version "2.1.4"
-  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.1.4.tgz#33c183acf193276ecaa98143a69e94bfee1750d1"
-  integrity sha1-M8GDrPGTJ27KqYFDpp6Uv+4XUNE=
-  dependencies:
-    asynckit "^0.4.0"
-    combined-stream "^1.0.5"
-    mime-types "^2.1.12"
-
-form-data@~2.3.1, form-data@~2.3.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.2.tgz#4970498be604c20c005d4f5c23aecd21d6b49099"
-  integrity sha1-SXBJi+YEwgwAXU9cI67NIda0kJk=
+form-data@~2.3.0, form-data@~2.3.1, form-data@~2.3.2:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"
+  integrity sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==
   dependencies:
     asynckit "^0.4.0"
-    combined-stream "1.0.6"
+    combined-stream "^1.0.6"
     mime-types "^2.1.12"
 
 fragment-cache@^0.2.1:
@@ -3962,6 +3713,11 @@ fs-access@^1.0.0:
   dependencies:
     null-check "^1.0.0"
 
+fs-constants@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
+  integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
+
 fs-exists-sync@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
@@ -3976,37 +3732,25 @@ fs-extra@^1.0.0:
     jsonfile "^2.1.0"
     klaw "^1.0.0"
 
+fs-minipass@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.5.tgz#06c277218454ec288df77ada54a03b8702aacb9d"
+  integrity sha512-JhBl0skXjUPCFH7x6x61gQxrKyXsxB5gcgePLZCwfyCGGsTISMoIeObbrvVeP6Xmyaudw4TT43qV2Gz+iyd2oQ==
+  dependencies:
+    minipass "^2.2.1"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
-fsevents@^1.0.0:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.1.3.tgz#11f82318f5fe7bb2cd22965a108e9306208216d8"
-  integrity sha512-WIr7iDkdmdbxu/Gh6eKEZJL6KPE74/5MEsf2whTOFNxbIoIixogroLdKYqB6FDav4Wavh/lZdzzd3b2KxIXC5Q==
-  dependencies:
-    nan "^2.3.0"
-    node-pre-gyp "^0.6.39"
-
-fstream-ignore@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/fstream-ignore/-/fstream-ignore-1.0.5.tgz#9c31dae34767018fe1d249b24dada67d092da105"
-  integrity sha1-nDHa40dnAY/h0kmyTa2mfQktoQU=
-  dependencies:
-    fstream "^1.0.0"
-    inherits "2"
-    minimatch "^3.0.0"
-
-fstream@^1.0.0, fstream@^1.0.10, fstream@^1.0.2:
-  version "1.0.11"
-  resolved "https://registry.yarnpkg.com/fstream/-/fstream-1.0.11.tgz#5c1fb1f117477114f0632a0eb4b71b3cb0fd3171"
-  integrity sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=
+fsevents@^1.2.2:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.4.tgz#f41dcb1af2582af3692da36fc55cbd8e1041c426"
+  integrity sha512-z8H8/diyk76B7q5wg+Ud0+CqzcAF3mBBI/bA5ne5zrRUUIvNkJY//D3BqyH571KuAC4Nr7Rw7CjWX4r0y9DvNg==
   dependencies:
-    graceful-fs "^4.1.2"
-    inherits "~2.0.0"
-    mkdirp ">=0.5 0"
-    rimraf "2"
+    nan "^2.9.2"
+    node-pre-gyp "^0.10.0"
 
 ftp@~0.3.10:
   version "0.3.10"
@@ -4016,7 +3760,7 @@ ftp@~0.3.10:
     readable-stream "1.1.x"
     xregexp "2.0.0"
 
-function-bind@^1.0.2, function-bind@^1.1.1:
+function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
   integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
@@ -4041,9 +3785,11 @@ gauge@~2.7.3:
     wide-align "^1.1.0"
 
 generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
-  integrity sha1-aFj+fAlpt9TpCTM3ZHrHn2DfvnQ=
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.3.1.tgz#f069617690c10c868e73b8465746764f97c3479f"
+  integrity sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==
+  dependencies:
+    is-property "^1.0.2"
 
 generate-object-property@^1.1.0:
   version "1.2.0"
@@ -4053,14 +3799,14 @@ generate-object-property@^1.1.0:
     is-property "^1.0.0"
 
 get-caller-file@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
-  integrity sha1-9wLmMSfn4jHBYKgMFVSstw1QR+U=
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
+  integrity sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==
 
-get-own-enumerable-property-symbols@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-2.0.1.tgz#5c4ad87f2834c4b9b4e84549dc1e0650fb38c24b"
-  integrity sha512-TtY/sbOemiMKPRUDDanGCSgBYe7Mf0vbRsWnBZ+9yghpZ1MvcpSpuZFjHdEeY/LZjZy0vdLjS77L6HosisFiug==
+get-own-enumerable-property-symbols@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-3.0.0.tgz#b877b49a5c16aefac3655f2ed2ea5b684df8d203"
+  integrity sha512-CIJYJC4GGF06TakLg8z4GQKvDsx9EMspVxOYih7LerEL/WosUnFIww45CGfxfeKHqlg3twgUrYRT1O3WQqjGCg==
 
 get-pkg-repo@^1.0.0:
   version "1.4.0"
@@ -4083,10 +3829,10 @@ get-stream@^3.0.0:
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
   integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
 
-get-uri@2:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/get-uri/-/get-uri-2.0.1.tgz#dbdcacacd8c608a38316869368117697a1631c59"
-  integrity sha512-7aelVrYqCLuVjq2kEKRTH8fXPTC0xKTkM+G7UlFkEwCXY3sFbSxvY375JoFowOAYbkaU47SrBvOefUlLZZ+6QA==
+get-uri@2, get-uri@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/get-uri/-/get-uri-2.0.2.tgz#5c795e71326f6ca1286f2fc82575cd2bab2af578"
+  integrity sha512-ZD325dMZOgerGqF/rF6vZXyFGTAay62svjQIT+X/oU2PtxYpFxvSkbsdi+oxIrsNxlZVd4y8wUDqkaExWTI/Cw==
   dependencies:
     data-uri-to-buffer "1"
     debug "2"
@@ -4107,10 +3853,10 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
-git-raw-commits@^1.3.4:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/git-raw-commits/-/git-raw-commits-1.3.4.tgz#442c3df5985b4f5689e9e43597f5194736aac001"
-  integrity sha512-G3O+41xHbscpgL5nA0DUkbFVgaAz5rd57AMSIMew8p7C8SyFwZDyn08MoXHkTl9zcD0LmxsLFPxbqFY4YPbpPA==
+git-raw-commits@^1.3.6:
+  version "1.3.6"
+  resolved "https://registry.yarnpkg.com/git-raw-commits/-/git-raw-commits-1.3.6.tgz#27c35a32a67777c1ecd412a239a6c19d71b95aff"
+  integrity sha512-svsK26tQ8vEKnMshTDatSIQSMDdz8CxIIqKsvPqbtV23Etmw6VNaFAitu8zwZ0VrOne7FztwPyRLxK7/DIUTQg==
   dependencies:
     dargs "^4.0.1"
     lodash.template "^4.0.2"
@@ -4126,10 +3872,10 @@ git-remote-origin-url@^2.0.0:
     gitconfiglocal "^1.0.0"
     pify "^2.3.0"
 
-git-semver-tags@^1.3.4:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/git-semver-tags/-/git-semver-tags-1.3.4.tgz#2ceb2a355c6d7514c123c35e297067d08caf3a92"
-  integrity sha512-Xe2Z74MwXZfAezuaO6e6cA4nsgeCiARPzaBp23gma325c/OXdt//PhrknptIaynNeUp2yWtmikV7k5RIicgGIQ==
+git-semver-tags@^1.3.6:
+  version "1.3.6"
+  resolved "https://registry.yarnpkg.com/git-semver-tags/-/git-semver-tags-1.3.6.tgz#357ea01f7280794fe0927f2806bee6414d2caba5"
+  integrity sha512-2jHlJnln4D/ECk9FxGEBh3k44wgYdWjWDtMmJPaecjoRmxKo3Y1Lh8GMYuOPu04CHw86NTAODchYjC5pnpMQig==
   dependencies:
     meow "^4.0.0"
     semver "^5.5.0"
@@ -4199,10 +3945,10 @@ glob@^5.0.15:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.0, glob@^7.1.1, glob@^7.1.2:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
-  integrity sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.1, glob@^7.1.2:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
+  integrity sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -4230,9 +3976,9 @@ global-prefix@^0.1.4:
     which "^1.2.12"
 
 globals@^11.0.1, globals@^11.1.0:
-  version "11.3.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-11.3.0.tgz#e04fdb7b9796d8adac9c8f64c14837b2313378b0"
-  integrity sha512-kkpcKNlmQan9Z5ZmgqKH/SMbSmjxQ7QjyNqfXVc8VJcoBV2UEg+sxQD15GQofGRh2hfpwUb70VC31DR7Rq5Hdw==
+  version "11.8.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.8.0.tgz#c1ef45ee9bed6badf0663c5cb90e8d1adec1321d"
+  integrity sha512-io6LkyPVuzCHBSQV9fmOwxZkUk6nIaGmxheLDgmuFv89j0fm2aqDbIXKAGfzCMHqz3HLF2Zf8WSG6VqMh2qFmA==
 
 globals@^9.18.0:
   version "9.18.0"
@@ -4278,20 +4024,15 @@ growl@1.9.2:
   integrity sha1-Dqd0NxXbjY3ixe3hd14bRayFwC8=
 
 handlebars@^4.0.1, handlebars@^4.0.2:
-  version "4.0.11"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
-  integrity sha1-Ywo13+ApS8KB7a5v/F0yn8eYLcw=
+  version "4.0.12"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.12.tgz#2c15c8a96d46da5e266700518ba8cb8d919d5bc5"
+  integrity sha512-RhmTekP+FZL+XNhwS1Wf+bTTZpdLougwt5pcgA1tuz6Jcx0fpH/7z0qd71RKnZHBCxIRBHfBOnio4gViPemNzA==
   dependencies:
-    async "^1.4.0"
+    async "^2.5.0"
     optimist "^0.6.1"
-    source-map "^0.4.4"
+    source-map "^0.6.1"
   optionalDependencies:
-    uglify-js "^2.6"
-
-har-schema@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
-  integrity sha1-0mMTX0MwfALGAq/I/pWXDAFRNp4=
+    uglify-js "^3.1.4"
 
 har-schema@^2.0.0:
   version "2.0.0"
@@ -4308,14 +4049,6 @@ har-validator@~2.0.6:
     is-my-json-valid "^2.12.4"
     pinkie-promise "^2.0.0"
 
-har-validator@~4.2.1:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-4.2.1.tgz#33481d0f1bbff600dd203d75812a6a5fba002e2a"
-  integrity sha1-M0gdDxu/9gDdID11gSpqX7oALio=
-  dependencies:
-    ajv "^4.9.1"
-    har-schema "^1.0.5"
-
 har-validator@~5.0.3:
   version "5.0.3"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.0.3.tgz#ba402c266194f15956ef15e0fcf242993f6a7dfd"
@@ -4340,9 +4073,9 @@ has-ansi@^2.0.0:
     ansi-regex "^2.0.0"
 
 has-binary2@~1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/has-binary2/-/has-binary2-1.0.2.tgz#e83dba49f0b9be4d026d27365350d9f03f54be98"
-  integrity sha1-6D26SfC5vk0CbSc2U1DZ8D9Uvpg=
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has-binary2/-/has-binary2-1.0.3.tgz#7776ac627f3ea77250cfc332dab7ddf5e4f5d11d"
+  integrity sha512-G1LWKhDSvhGeAQ8mPVQlqNcOB2sJdwATtZKl2pDKKHfpf/rYj24lkinxf69blJbnsvtqqNU+L3SL50vzZhXOnw==
   dependencies:
     isarray "2.0.1"
 
@@ -4407,13 +4140,6 @@ has-values@^1.0.0:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
-has@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
-  integrity sha1-hGFzP1OLCDfJNh45qauelwTcLyg=
-  dependencies:
-    function-bind "^1.0.2"
-
 has@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
@@ -4421,13 +4147,6 @@ has@^1.0.1:
   dependencies:
     function-bind "^1.1.1"
 
-hash-base@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-2.0.2.tgz#66ea1d856db4e8a5470cadf6fce23ae5244ef2e1"
-  integrity sha1-ZuodhW206KVHDK32/OI65SRO8uE=
-  dependencies:
-    inherits "^2.0.1"
-
 hash-base@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-3.0.4.tgz#5fc8686847ecd73499403319a6b0a3f3f6ae4918"
@@ -4442,12 +4161,12 @@ hash-sum@^1.0.2:
   integrity sha1-M7QHd3VMZDJXPBIMw4CLvRDUfwQ=
 
 hash.js@^1.0.0, hash.js@^1.0.3:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.3.tgz#340dedbe6290187151c1ea1d777a3448935df846"
-  integrity sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.5.tgz#e38ab4b85dfb1e0c40fe9265c0e9b54854c23812"
+  integrity sha512-eWI5HG9Np+eHV1KQhisXWwM+4EPPYe5dFX1UZZH7k/E3JzDEazVH+VGlZi6R94ZqImq+A3D1mCEtrFIfg/E7sA==
   dependencies:
     inherits "^2.0.3"
-    minimalistic-assert "^1.0.0"
+    minimalistic-assert "^1.0.1"
 
 hasha@^2.2.0:
   version "2.2.0"
@@ -4457,7 +4176,7 @@ hasha@^2.2.0:
     is-stream "^1.0.1"
     pinkie-promise "^2.0.0"
 
-hawk@3.1.3, hawk@~3.1.3:
+hawk@~3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
   integrity sha1-B4REvXwWQLD+VA0sm3PVlnjo4cQ=
@@ -4478,9 +4197,9 @@ hawk@~6.0.2:
     sntp "2.x.x"
 
 he@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
-  integrity sha1-k0EP0hsAlzUVH4howvJx80J+I/0=
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
+  integrity sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==
 
 hipchat-notifier@^1.1.0:
   version "1.1.0"
@@ -4522,43 +4241,31 @@ homedir-polyfill@^1.0.0:
     parse-passwd "^1.0.0"
 
 hosted-git-info@^2.1.4:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.5.0.tgz#6d60e34b3abbc8313062c3b798ef8d901a07af3c"
-  integrity sha512-pNgbURSuab90KbTqvRPsseaTxOJCZBD0a7t+haSN33piP9cCM4l0CqdzAif2hUqm716UovKB2ROmiabGAKVXyg==
-
-html-encoding-sniffer@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/html-encoding-sniffer/-/html-encoding-sniffer-1.0.2.tgz#e70d84b94da53aa375e11fe3a351be6642ca46f8"
-  integrity sha512-71lZziiDnsuabfdYiUeWdCVyKuqwWi23L8YeIgV9jSSZHCtb6wB1BKWooH7L3tn4/FuZJMVWyNaIDr4RGmaSYw==
-  dependencies:
-    whatwg-encoding "^1.0.1"
-
-htmlescape@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/htmlescape/-/htmlescape-1.1.1.tgz#3a03edc2214bca3b66424a3e7959349509cb0351"
-  integrity sha1-OgPtwiFLyjtmQko+eVk0lQnLA1E=
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.7.1.tgz#97f236977bd6e125408930ff6de3eec6281ec047"
+  integrity sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==
 
 htmlparser2@^3.8.2:
-  version "3.9.2"
-  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.9.2.tgz#1bdf87acca0f3f9e53fa4fcceb0f4b4cbb00b338"
-  integrity sha1-G9+HrMoPP55T+k/M6w9LTLsAszg=
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.10.0.tgz#5f5e422dcf6119c0d983ed36260ce9ded0bee464"
+  integrity sha512-J1nEUGv+MkXS0weHNWVKJJ+UrLfePxRWpN3C9bEi9fLxL2+ggW94DQvgYVXsaT30PGwYRIZKNZXuyMhp3Di4bQ==
   dependencies:
     domelementtype "^1.3.0"
     domhandler "^2.3.0"
     domutils "^1.5.1"
     entities "^1.1.1"
     inherits "^2.0.1"
-    readable-stream "^2.0.2"
+    readable-stream "^3.0.6"
 
-http-errors@1.6.2, http-errors@~1.6.2:
-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.2.tgz#0a002cc85707192a7e7946ceedc11155f60ec736"
-  integrity sha1-CgAsyFcHGSp+eUbO7cERVfYOxzY=
+http-errors@1.6.3, http-errors@~1.6.3:
+  version "1.6.3"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
+  integrity sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=
   dependencies:
-    depd "1.1.1"
+    depd "~1.1.2"
     inherits "2.0.3"
-    setprototypeof "1.0.3"
-    statuses ">= 1.3.1 < 2"
+    setprototypeof "1.1.0"
+    statuses ">= 1.4.0 < 2"
 
 http-proxy-agent@1:
   version "1.0.0"
@@ -4569,13 +4276,22 @@ http-proxy-agent@1:
     debug "2"
     extend "3"
 
+http-proxy-agent@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/http-proxy-agent/-/http-proxy-agent-2.1.0.tgz#e4821beef5b2142a2026bd73926fe537631c5405"
+  integrity sha512-qwHbBLV7WviBl0rQsOzH6o5lwyOIvwp/BdFnvVxXORldu5TmjFfjzBcWUWS5kWAZhmv+JtiDhSuQCp4sBfbIgg==
+  dependencies:
+    agent-base "4"
+    debug "3.1.0"
+
 http-proxy@^1.13.0, http-proxy@^1.8.1:
-  version "1.16.2"
-  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.16.2.tgz#06dff292952bf64dbe8471fa9df73066d4f37742"
-  integrity sha1-Bt/ykpUr9k2+hHH6nfcwZtTzd0I=
+  version "1.17.0"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.17.0.tgz#7ad38494658f84605e2f6db4436df410f4e5be9a"
+  integrity sha512-Taqn+3nNvYRfJ3bGvKfBSRwy1v6eePlm3oc/aWVxZp57DQr5Eq3xhKJi7Z4hZpS8PC3H4qI+Yly5EmFacGuA/g==
   dependencies:
-    eventemitter3 "1.x.x"
-    requires-port "1.x.x"
+    eventemitter3 "^3.0.0"
+    follow-redirects "^1.0.0"
+    requires-port "^1.0.0"
 
 http-server@^0.11.1:
   version "0.11.1"
@@ -4627,7 +4343,7 @@ https-browserify@^1.0.0:
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
   integrity sha1-7AbBDgo0wPL68Zn3/X/Hj//QPHM=
 
-https-proxy-agent@1, https-proxy-agent@^1.0.0, https-proxy-agent@~1.0.0:
+https-proxy-agent@1:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-1.0.0.tgz#35f7da6c48ce4ddbfa264891ac593ee5ff8671e6"
   integrity sha1-NffabEjOTdv6JkiRrFk+5f+GceY=
@@ -4636,20 +4352,37 @@ https-proxy-agent@1, https-proxy-agent@^1.0.0, https-proxy-agent@~1.0.0:
     debug "2"
     extend "3"
 
+https-proxy-agent@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz#51552970fa04d723e04c56d04178c3f92592bbc0"
+  integrity sha512-HPCTS1LW51bcyMYbxUIOO4HEOlQ1/1qRaFWcyxvwaqUS9TY88aoEuHUY33kuAh1YhVVaDQhLZsnPd+XNARWZlQ==
+  dependencies:
+    agent-base "^4.1.0"
+    debug "^3.1.0"
+
 iconv-lite@0.4.15:
   version "0.4.15"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.15.tgz#fe265a218ac6a57cfe854927e9d04c19825eddeb"
   integrity sha1-/iZaIYrGpXz+hUkn6dBMGYJe3es=
 
-iconv-lite@0.4.19, iconv-lite@^0.4.17:
-  version "0.4.19"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
-  integrity sha512-oTZqweIP51xaGPI4uPa56/Pri/480R+mo7SeU+YETByQNhDG55ycFyNLIgta9vXhILrxXDmF7ZGhqZIcuN0gJQ==
+iconv-lite@0.4.23:
+  version "0.4.23"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
+  integrity sha512-neyTUVFtahjf0mB3dZT77u+8O0QB89jFdnBkd5P1JgYPbPaia3gXXOVL2fq8VyU2gMMD7SaN7QukTB/pmXYvDA==
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
+
+iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+  version "0.4.24"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
+  integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
 
 ieee754@^1.1.4:
-  version "1.1.8"
-  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.8.tgz#be33d40ac10ef1926701f6f08a2d86fbfd1ad3e4"
-  integrity sha1-vjPUCsEO8ZJnAfbwii2G+/0a0+Q=
+  version "1.1.12"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.12.tgz#50bf24e5b9c8bb98af4964c941cdb0918da7b60b"
+  integrity sha512-GguP+DRY+pJ3soyIiGPTvdiVXjZ+DbXOxGpXn3eMvNW4x4irjqXm4wHKscC+TfxSJ0yw/S1F24tqdMNsMZTiLA==
 
 ignore-walk@^3.0.1:
   version "3.0.1"
@@ -4659,9 +4392,9 @@ ignore-walk@^3.0.1:
     minimatch "^3.0.4"
 
 ignore@^3.3.3:
-  version "3.3.7"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
-  integrity sha512-YGG3ejvBNHRqu0559EOxxNFihD0AjpvHlC/pdGKd3X3ofe+CoJkYazwNJYTNebqpPKN+VVQbh4ZFn1DivMNuHA==
+  version "3.3.10"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
+  integrity sha512-Pgs951kaMm5GXP7MOvxERINe3gsaVjUWFm+UZPSq9xYriQAksyhg0csnS0KXSNRD5NmNdapXEpjxG49+AKh/ug==
 
 imurmurhash@^0.1.4:
   version "0.1.4"
@@ -4685,10 +4418,10 @@ indexof@0.0.1:
   resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
   integrity sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=
 
-inflection@~1.10.0:
-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.10.0.tgz#5bffcb1197ad3e81050f8e17e21668087ee9eb2f"
-  integrity sha1-W//LEZetPoEFD44X4hZoCH7p6y8=
+inflection@~1.12.0:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.12.0.tgz#a200935656d6f5f6bc4dc7502e1aecb703228416"
+  integrity sha1-ogCTVlbW9fa8TcdQLhrstwMihBY=
 
 inflection@~1.3.0:
   version "1.3.8"
@@ -4703,7 +4436,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
+inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
@@ -4718,13 +4451,6 @@ ini@^1.3.2, ini@^1.3.4, ini@~1.3.0:
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
   integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
 
-inline-source-map@~0.6.0:
-  version "0.6.2"
-  resolved "https://registry.yarnpkg.com/inline-source-map/-/inline-source-map-0.6.2.tgz#f9393471c18a79d1724f863fa38b586370ade2a5"
-  integrity sha1-+Tk0ccGKedFyT4Y/o4tYY3Ct4qU=
-  dependencies:
-    source-map "~0.5.3"
-
 inquirer@1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-1.2.3.tgz#4dec6f32f37ef7bb0b2ed3f1d1a5c3f545074918"
@@ -4745,6 +4471,25 @@ inquirer@1.2.3:
     strip-ansi "^3.0.0"
     through "^2.3.6"
 
+inquirer@3.0.6:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.0.6.tgz#e04aaa9d05b7a3cb9b0f407d04375f0447190347"
+  integrity sha1-4EqqnQW3o8ubD0B9BDdfBEcZA0c=
+  dependencies:
+    ansi-escapes "^1.1.0"
+    chalk "^1.0.0"
+    cli-cursor "^2.1.0"
+    cli-width "^2.0.0"
+    external-editor "^2.0.1"
+    figures "^2.0.0"
+    lodash "^4.3.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx "^4.1.0"
+    string-width "^2.0.0"
+    strip-ansi "^3.0.0"
+    through "^2.3.6"
+
 inquirer@^3.0.6:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
@@ -4765,29 +4510,15 @@ inquirer@^3.0.6:
     strip-ansi "^4.0.0"
     through "^2.3.6"
 
-insert-module-globals@^7.0.0:
-  version "7.0.2"
-  resolved "https://registry.yarnpkg.com/insert-module-globals/-/insert-module-globals-7.0.2.tgz#012c56baa7d3307a8b417d4ec5270cf9741c18f4"
-  integrity sha512-p3s7g96Nm62MbHRuj9ZXab0DuJNWD7qcmdUXCOQ/ZZn42DtDXfsLill7bq19lDCx3K3StypqUnuE3H2VmIJFUw==
-  dependencies:
-    JSONStream "^1.0.3"
-    combine-source-map "~0.7.1"
-    concat-stream "~1.5.1"
-    is-buffer "^1.1.0"
-    lexical-scope "^1.2.0"
-    process "~0.11.0"
-    through2 "^2.0.0"
-    xtend "^4.0.0"
-
 interpret@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
   integrity sha1-ftGxQQxqDg94z5XTuEQMY/eLhhQ=
 
 invariant@^2.2.0, invariant@^2.2.2:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.3.tgz#1a827dfde7dcbd7c323f0ca826be8fa7c5e9d688"
-  integrity sha512-7Z5PPegwDTyjbaeCnV0efcyS6vdKAU51kpEmS7QFib3P4822l8ICYyMn7qvJnc+WzLoDsuI9gPMKbJ8pCu8XtA==
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
+  integrity sha512-phJfQVBuaJM5raOpJjSfkiD6BpbCE4Ns//LaXl6wGYtUBY83nWS6Rf9tXm2e8VaK60JEjYldbPif/A2B1C2gNA==
   dependencies:
     loose-envify "^1.0.0"
 
@@ -4801,7 +4532,7 @@ ip@1.0.1:
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.0.1.tgz#c7e356cdea225ae71b36d70f2e71a92ba4e42590"
   integrity sha1-x+NWzeoiWucbNtcPLnGpK6TkJZA=
 
-ip@^1.1.2, ip@^1.1.4:
+ip@^1.1.2, ip@^1.1.4, ip@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"
   integrity sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=
@@ -4832,7 +4563,7 @@ is-binary-path@^1.0.0:
   dependencies:
     binary-extensions "^1.0.0"
 
-is-buffer@^1.1.0, is-buffer@^1.1.5:
+is-buffer@^1.1.5:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
   integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
@@ -4850,11 +4581,11 @@ is-callable@^1.1.3, is-callable@^1.1.4:
   integrity sha512-r5p9sxJjYnArLjObpjA4xu5EKI3CuKHkJXMhT7kwbpUyIFD1n5PMAsoPvWnvtZiNz7LjkYDRZhd7FlI0eMijEA==
 
 is-ci@^1.0.10:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.1.0.tgz#247e4162e7860cebbdaf30b774d6b0ac7dcfe7a5"
-  integrity sha512-c7TnwxLePuqIlxHgr7xtxzycJPegNHFuIrBkwbf8hc58//+Op1CqFkyS+xnIMkwn9UsJIwc174BIjkyBmSpjKg==
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.2.1.tgz#e3779c8ee17fccf428488f6e281187f2e632841c"
+  integrity sha512-s6tfsaQaQi3JNciBH6shVqEDvhGut0SUXr31ag8Pd8BBbVVlcGfWhpPmEOoM6RJ5TFhbypvf5yyRw/VXW1IiWg==
   dependencies:
-    ci-info "^1.0.0"
+    ci-info "^1.5.0"
 
 is-data-descriptor@^0.1.4:
   version "0.1.4"
@@ -4951,11 +4682,6 @@ is-fullwidth-code-point@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
   integrity sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=
 
-is-generator-fn@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-1.0.0.tgz#969d49e1bb3329f6bb7f09089be26578b2ddd46a"
-  integrity sha1-lp1J4bszKfa7fwkIm+JleLLd1Go=
-
 is-glob@^2.0.0, is-glob@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
@@ -4988,9 +4714,9 @@ is-my-ip-valid@^1.0.0:
   integrity sha512-gmh/eWXROncUzRnIa1Ubrt5b8ep/MGSnfAUI3aRp+sqTCs1tv1Isl8d8F6JmkN3dXKc3ehZMrtiPN9eL03NuaQ==
 
 is-my-json-valid@^2.12.4:
-  version "2.17.2"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.17.2.tgz#6b2103a288e94ef3de5cf15d29dd85fc4b78d65c"
-  integrity sha512-IBhBslgngMQN8DDSppmgDv7RNrlFotuuDsKcrCP3+HbFaVivIBU7u9oiiErw8sH4ynx3+gOGQ3q2otkgiSi6kg==
+  version "2.19.0"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.19.0.tgz#8fd6e40363cd06b963fa877d444bfb5eddc62175"
+  integrity sha512-mG0f/unGX1HZ5ep4uhRaPOS8EkAY8/j6mDRMJrutq4CqhoJWYp7qAlonIPy3TV7p3ju4TK9fo/PbnoksWmsp5Q==
   dependencies:
     generate-function "^2.0.0"
     generate-object-property "^1.1.0"
@@ -5027,19 +4753,12 @@ is-obj@^1.0.0, is-obj@^1.0.1:
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
   integrity sha1-PkcprB9f3gJc19g6iW2rn09n2w8=
 
-is-observable@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/is-observable/-/is-observable-0.2.0.tgz#b361311d83c6e5d726cabf5e250b0237106f5ae2"
-  integrity sha1-s2ExHYPG5dcmyr9eJQsCNxBvWuI=
-  dependencies:
-    symbol-observable "^0.2.2"
-
-is-odd@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
-  integrity sha512-OTiixgpZAT1M4NHgS5IguFp/Vz2VI3U7Goh4/HA1adtwyLtSBrxYlcSYkhpAE07s4fKEcjrFxyvtQBND4vFQyQ==
+is-observable@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-observable/-/is-observable-1.1.0.tgz#b3e986c8f44de950867cab5403f5a3465005975e"
+  integrity sha512-NqCa4Sa2d+u7BWc6CukaObG3Fh+CU9bvixbpcXYhy2VvYS7vVGIdAgnIS5Ks3A/cqk4rebLJ9s8zBstT2aKnIA==
   dependencies:
-    is-number "^4.0.0"
+    symbol-observable "^1.1.0"
 
 is-path-cwd@^1.0.0:
   version "1.0.0"
@@ -5047,9 +4766,9 @@ is-path-cwd@^1.0.0:
   integrity sha1-0iXsIxMuie3Tj9p2dHLmLmXxEG0=
 
 is-path-in-cwd@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-1.0.0.tgz#6477582b8214d602346094567003be8a9eac04dc"
-  integrity sha1-ZHdYK4IU1gI0YJRWcAO+ip6sBNw=
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-path-in-cwd/-/is-path-in-cwd-1.0.1.tgz#5ac48b345ef675339bd6c7a48a912110b241cf52"
+  integrity sha512-FjV1RTW48E7CWM7eE/J2NJvAEEVektecDBVBE5Hh3nM1Jd0kvhHtX68Pr3xsDf857xt3Y4AkwVULK1Vku62aaQ==
   dependencies:
     is-path-inside "^1.0.0"
 
@@ -5087,7 +4806,7 @@ is-promise@^2.1.0:
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
   integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
 
-is-property@^1.0.0:
+is-property@^1.0.0, is-property@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
   integrity sha1-V/4cTkhHTt1lsJkR8msc1Ald2oQ=
@@ -5153,7 +4872,7 @@ is-windows@^1.0.2:
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
   integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
 
-isarray@0.0.1, isarray@~0.0.1:
+isarray@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
   integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
@@ -5169,9 +4888,11 @@ isarray@2.0.1:
   integrity sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=
 
 isbinaryfile@^3.0.0:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-3.0.2.tgz#4a3e974ec0cba9004d3fc6cde7209ea69368a621"
-  integrity sha1-Sj6XTsDLqQBNP8bN5yCeppNopiE=
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-3.0.3.tgz#5d6def3edebf6e8ca8cae9c30183a804b5f8be80"
+  integrity sha512-8cJBL5tTd2OS0dM4jz07wQd5g0dCCqIhUxPIGtZfa5L6hWlvV5MHTITy/DBAsF+Oe2LS1X3krBUhNwaGUWpWxw==
+  dependencies:
+    buffer-alloc "^1.2.0"
 
 isexe@^2.0.0:
   version "2.0.0"
@@ -5247,145 +4968,20 @@ jasmine@^2.99.0:
     glob "^7.0.6"
     jasmine-core "~2.99.0"
 
-jest-config@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-22.4.2.tgz#580ba5819bf81a5e48f4fd470e8b81834f45c855"
-  integrity sha512-oG31qYO73/3vj/Q8aM2RgzmHndTkz9nRk8ISybfuJqqbf0RW7OUjHVOZPLOUiwLWtz52Yq2HkjIblsyhbA7vrg==
-  dependencies:
-    chalk "^2.0.1"
-    glob "^7.1.1"
-    jest-environment-jsdom "^22.4.1"
-    jest-environment-node "^22.4.1"
-    jest-get-type "^22.1.0"
-    jest-jasmine2 "^22.4.2"
-    jest-regex-util "^22.1.0"
-    jest-resolve "^22.4.2"
-    jest-util "^22.4.1"
-    jest-validate "^22.4.2"
-    pretty-format "^22.4.0"
-
-jest-diff@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-22.4.0.tgz#384c2b78519ca44ca126382df53f134289232525"
-  integrity sha512-+/t20WmnkOkB8MOaGaPziI8zWKxquMvYw4Ub+wOzi7AUhmpFXz43buWSxVoZo4J5RnCozpGbX3/FssjJ5KV9Nw==
-  dependencies:
-    chalk "^2.0.1"
-    diff "^3.2.0"
-    jest-get-type "^22.1.0"
-    pretty-format "^22.4.0"
-
-jest-environment-jsdom@^22.4.1:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-22.4.1.tgz#754f408872441740100d3917e5ec40c74de6447f"
-  integrity sha512-x/JzAoH+dWPBnIMv5OQKiIR0TYf6UvbRjsIuDZ11yDFXkHKGJZg6jNnLAsokAm3cq9kUa2hH5BPUC9XU4n1ELQ==
-  dependencies:
-    jest-mock "^22.2.0"
-    jest-util "^22.4.1"
-    jsdom "^11.5.1"
-
-jest-environment-node@^22.4.1:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-22.4.1.tgz#418850eb654596b8d6e36c2021cbedbc23df8e16"
-  integrity sha512-wj9+zzfRgnUbm5VwFOCGgG1QmbucUyrjPKBKUJdLW8K5Ss5zrNc1k+v6feZhFg6sS3ZGnjgtIyklaxEARxu+LQ==
-  dependencies:
-    jest-mock "^22.2.0"
-    jest-util "^22.4.1"
-
 jest-get-type@^22.1.0:
-  version "22.1.0"
-  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.1.0.tgz#4e90af298ed6181edc85d2da500dbd2753e0d5a9"
-  integrity sha512-nD97IVOlNP6fjIN5i7j5XRH+hFsHL7VlauBbzRvueaaUe70uohrkz7pL/N8lx/IAwZRTJ//wOdVgh85OgM7g3w==
-
-jest-jasmine2@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-22.4.2.tgz#dfd3d259579ed6f52510d8f1ab692808f0d40691"
-  integrity sha512-KZaIHpXQ0AIlvQJFCU0uoXxtz5GG47X14r9upMe7VXE55UazoMZBFnQb9TX2HoYX2/AxJYnjHuvwKVCFqOrEtw==
-  dependencies:
-    chalk "^2.0.1"
-    co "^4.6.0"
-    expect "^22.4.0"
-    graceful-fs "^4.1.11"
-    is-generator-fn "^1.0.0"
-    jest-diff "^22.4.0"
-    jest-matcher-utils "^22.4.0"
-    jest-message-util "^22.4.0"
-    jest-snapshot "^22.4.0"
-    jest-util "^22.4.1"
-    source-map-support "^0.5.0"
-
-jest-matcher-utils@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-22.4.0.tgz#d55f5faf2270462736bdf7c7485ee931c9d4b6a1"
-  integrity sha512-03m3issxUXpWMwDYTfmL8hRNewUB0yCRTeXPm+eq058rZxLHD9f5NtSSO98CWHqe4UyISIxd9Ao9iDVjHWd2qg==
-  dependencies:
-    chalk "^2.0.1"
-    jest-get-type "^22.1.0"
-    pretty-format "^22.4.0"
-
-jest-message-util@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-22.4.0.tgz#e3d861df16d2fee60cb2bc8feac2188a42579642"
-  integrity sha512-eyCJB0T3hrlpFF2FqQoIB093OulP+1qvATQmD3IOgJgMGqPL6eYw8TbC5P/VCWPqKhGL51xvjIIhow5eZ2wHFw==
-  dependencies:
-    "@babel/code-frame" "^7.0.0-beta.35"
-    chalk "^2.0.1"
-    micromatch "^2.3.11"
-    slash "^1.0.0"
-    stack-utils "^1.0.1"
-
-jest-mock@^22.2.0:
-  version "22.2.0"
-  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-22.2.0.tgz#444b3f9488a7473adae09bc8a77294afded397a7"
-  integrity sha512-eOfoUYLOB/JlxChOFkh/bzpWGqUXb9I+oOpkprHHs9L7nUNfL8Rk28h1ycWrqzWCEQ/jZBg/xIv7VdQkfAkOhw==
-
-jest-regex-util@^22.1.0:
-  version "22.1.0"
-  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-22.1.0.tgz#5daf2fe270074b6da63e5d85f1c9acc866768f53"
-  integrity sha512-on0LqVS6Xeh69sw3d1RukVnur+lVOl3zkmb0Q54FHj9wHoq6dbtWqb3TSlnVUyx36hqjJhjgs/QLqs07Bzu72Q==
-
-jest-resolve@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-22.4.2.tgz#25d88aa4147462c9c1c6a1ba16250d3794c24d00"
-  integrity sha512-P1hSfcc2HJYT5t+WPu/11OfFMa7m8pBb2Gf2vm6W9OVs7YTXQ5RCC3nDqaYZQaTqxEM1ZZaTcQGcE6U2xMOsqQ==
-  dependencies:
-    browser-resolve "^1.11.2"
-    chalk "^2.0.1"
-
-jest-snapshot@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-22.4.0.tgz#03d3ce63f8fa7352388afc6a3c8b5ccc3a180ed7"
-  integrity sha512-6Zz4F9G1Nbr93kfm5h3A2+OkE+WGpgJlskYE4iSNN2uYfoTL5b9W6aB9Orpx+ueReHyqmy7HET7Z3EmYlL3hKw==
-  dependencies:
-    chalk "^2.0.1"
-    jest-diff "^22.4.0"
-    jest-matcher-utils "^22.4.0"
-    mkdirp "^0.5.1"
-    natural-compare "^1.4.0"
-    pretty-format "^22.4.0"
-
-jest-util@^22.4.1:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-22.4.1.tgz#dd17c3bdb067f8e90591563ec0c42bf847dc249f"
-  integrity sha512-9ySBdJY2qVWpg0OvZbGcFXE2NgwccpZVj384E9bx7brKFc7l5anpqah15mseWcz7FLDk7/N+LyYgqFme7Rez2Q==
-  dependencies:
-    callsites "^2.0.0"
-    chalk "^2.0.1"
-    graceful-fs "^4.1.11"
-    is-ci "^1.0.10"
-    jest-message-util "^22.4.0"
-    mkdirp "^0.5.1"
-    source-map "^0.6.0"
+  version "22.4.3"
+  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
+  integrity sha512-/jsz0Y+V29w1chdXVygEKSz2nBoHoYqNShPe+QgxSNjAuP1i8+k4LbQNrfoliKej0P45sivkSCh7yiD6ubHS3w==
 
-jest-validate@^22.4.0, jest-validate@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-22.4.2.tgz#e789a4e056173bf97fe797a2df2d52105c57d4f4"
-  integrity sha512-TLOgc/EULFBjMCAqZp5OdVvjxV16DZpfthd/UyPzM6lRmgWluohNVemAdnL3JvugU1s2Q2npcIqtbOtiPjaZ0A==
+jest-validate@^23.5.0:
+  version "23.6.0"
+  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-23.6.0.tgz#36761f99d1ed33fcd425b4e4c5595d62b6597474"
+  integrity sha512-OFKapYxe72yz7agrDAWi8v2WL8GIfVqcbKRCLbRG9PAxtzF9b1SEDdTpytNDN12z2fJynoBwpMpvj2R39plI2A==
   dependencies:
     chalk "^2.0.1"
-    jest-config "^22.4.2"
     jest-get-type "^22.1.0"
     leven "^2.1.0"
-    pretty-format "^22.4.0"
+    pretty-format "^23.6.0"
 
 js-levenshtein@^1.1.3:
   version "1.1.4"
@@ -5397,20 +4993,12 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
   integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
 
-js-tokens@^4.0.0:
+"js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
-js-yaml@3.x, js-yaml@^3.9.0, js-yaml@^3.9.1:
-  version "3.11.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
-  integrity sha512-saJstZWv7oNeOyBh3+Dx1qWzhW0+e6/8eDzo7p5rDFqxntSztloLtuKu+Ejhtq82jsilwOIZYsCz+lIjthg1Hw==
-  dependencies:
-    argparse "^1.0.7"
-    esprima "^4.0.0"
-
-js-yaml@^3.12.0:
+js-yaml@3.x, js-yaml@^3.12.0, js-yaml@^3.9.0, js-yaml@^3.9.1:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
   integrity sha512-PIt2cnwmPfL4hKNwqeiuz4bKfnzHTBv6HyVgjahA6mPLwPDzjDWrplJBMjHUFxku/N3FlmrbyPclad+I+4mJ3A==
@@ -5423,38 +5011,6 @@ jsbn@~0.1.0:
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
   integrity sha1-peZUwuWi3rXyAdls77yoDA7y9RM=
 
-jsdom@^11.5.1:
-  version "11.6.2"
-  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-11.6.2.tgz#25d1ef332d48adf77fc5221fe2619967923f16bb"
-  integrity sha512-pAeZhpbSlUp5yQcS6cBQJwkbzmv4tWFaYxHbFVSxzXefqjvtRA851Z5N2P+TguVG9YeUDcgb8pdeVQRJh0XR3Q==
-  dependencies:
-    abab "^1.0.4"
-    acorn "^5.3.0"
-    acorn-globals "^4.1.0"
-    array-equal "^1.0.0"
-    browser-process-hrtime "^0.1.2"
-    content-type-parser "^1.0.2"
-    cssom ">= 0.3.2 < 0.4.0"
-    cssstyle ">= 0.2.37 < 0.3.0"
-    domexception "^1.0.0"
-    escodegen "^1.9.0"
-    html-encoding-sniffer "^1.0.2"
-    left-pad "^1.2.0"
-    nwmatcher "^1.4.3"
-    parse5 "4.0.0"
-    pn "^1.1.0"
-    request "^2.83.0"
-    request-promise-native "^1.0.5"
-    sax "^1.2.4"
-    symbol-tree "^3.2.2"
-    tough-cookie "^2.3.3"
-    w3c-hr-time "^1.0.1"
-    webidl-conversions "^4.0.2"
-    whatwg-encoding "^1.0.3"
-    whatwg-url "^6.4.0"
-    ws "^4.0.0"
-    xml-name-validator "^3.0.0"
-
 jsesc@^2.5.1:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.1.tgz#e421a2a8e20d6b0819df28908f782526b96dd1fe"
@@ -5471,15 +5027,20 @@ json-loader@^0.5.4:
   integrity sha512-QLPs8Dj7lnf3e3QYS1zkCo+4ZwqOiF9d/nZnYozTISxXWCfNs9yuky5rJw4/W34s7POaNlbZmQGaB5NiXCbP4w==
 
 json-parse-better-errors@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.1.tgz#50183cd1b2d25275de069e9e71b467ac9eab973a"
-  integrity sha512-xyQpxeWWMKyJps9CuGJYeng6ssI5bpqS9ltQpdVQ90t4ql6NdnxFKh95JcRt2cun/DjMVNrdjniLPuMA69xmCw==
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
+  integrity sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==
 
 json-schema-traverse@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
   integrity sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=
 
+json-schema-traverse@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
+  integrity sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==
+
 json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
@@ -5490,20 +5051,6 @@ json-stable-stringify-without-jsonify@^1.0.1:
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
   integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
 
-json-stable-stringify@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
-  integrity sha1-mnWdOcXy/1A/1TAGRu1EX4jE+a8=
-  dependencies:
-    jsonify "~0.0.0"
-
-json-stable-stringify@~0.0.0:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-0.0.1.tgz#611c23e814db375527df851193db59dd2af27f45"
-  integrity sha1-YRwj6BTbN1Un34URk9tZ3Sryf0U=
-  dependencies:
-    jsonify "~0.0.0"
-
 json-stringify-safe@5.0.x, json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
@@ -5526,11 +5073,6 @@ jsonfile@^2.1.0:
   optionalDependencies:
     graceful-fs "^4.1.6"
 
-jsonify@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
-  integrity sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM=
-
 jsonparse@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
@@ -5560,13 +5102,13 @@ karma-chrome-launcher@^2.1.1:
     which "^1.2.1"
 
 karma-coverage@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/karma-coverage/-/karma-coverage-1.1.1.tgz#5aff8b39cf6994dc22de4c84362c76001b637cf6"
-  integrity sha1-Wv+LOc9plNwi3kyENix2ABtjfPY=
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/karma-coverage/-/karma-coverage-1.1.2.tgz#cc09dceb589a83101aca5fe70c287645ef387689"
+  integrity sha512-eQawj4Cl3z/CjxslYy9ariU4uDh7cCNFZHNWXWRpl0pNeblY/4wHR7M7boTYXWrn9bY0z2pZmr11eKje/S/hIw==
   dependencies:
     dateformat "^1.0.6"
     istanbul "^0.4.0"
-    lodash "^3.8.0"
+    lodash "^4.17.0"
     minimatch "^3.0.0"
     source-map "^0.5.1"
 
@@ -5576,9 +5118,9 @@ karma-firefox-launcher@^1.0.1:
   integrity sha512-LbZ5/XlIXLeQ3cqnCbYLn+rOVhuMIK9aZwlP6eOLGzWdo1UVp7t6CN3DP4SafiRLjexKwHeKHDm0c38Mtd3VxA==
 
 karma-jasmine@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/karma-jasmine/-/karma-jasmine-1.1.1.tgz#6fe840e75a11600c9d91e84b33c458e1c46a3529"
-  integrity sha1-b+hA51oRYAydkehLM8RY4cRqNSk=
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/karma-jasmine/-/karma-jasmine-1.1.2.tgz#394f2b25ffb4a644b9ada6f22d443e2fd08886c3"
+  integrity sha1-OU8rJf+0pkS5rabyLUQ+L9CIhsM=
 
 karma-mocha-reporter@^2.2.3:
   version "2.2.5"
@@ -5632,14 +5174,13 @@ karma-webpack@^2.0.3:
     webpack-dev-middleware "^1.12.0"
 
 karma@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/karma/-/karma-2.0.0.tgz#a02698dd7f0f05ff5eb66ab8f65582490b512e58"
-  integrity sha512-K9Kjp8CldLyL9ANSUctDyxC7zH3hpqXj/K09qVf06K3T/kXaHtFZ5tQciK7OzQu68FLvI89Na510kqQ2LCbpIw==
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/karma/-/karma-2.0.5.tgz#3710c7a2e71b1c439313f283846d88e04e4f918c"
+  integrity sha512-rECezBeY7mjzGUWhFlB7CvPHgkHJLXyUmWg+6vHCEsdWNUTnmiS6jRrIMcJEWgU2DUGZzGWG0bTRVky8fsDTOA==
   dependencies:
     bluebird "^3.3.0"
     body-parser "^1.16.1"
-    browserify "^14.5.0"
-    chokidar "^1.4.1"
+    chokidar "^2.0.3"
     colors "^1.1.0"
     combine-lists "^1.0.0"
     connect "^3.6.0"
@@ -5652,7 +5193,7 @@ karma@^2.0.0:
     http-proxy "^1.13.0"
     isbinaryfile "^3.0.0"
     lodash "^4.17.4"
-    log4js "^2.3.9"
+    log4js "^2.5.3"
     mime "^1.3.4"
     minimatch "^3.0.2"
     optimist "^0.6.1"
@@ -5663,7 +5204,7 @@ karma@^2.0.0:
     socket.io "2.0.4"
     source-map "^0.6.1"
     tmp "0.0.33"
-    useragent "^2.1.12"
+    useragent "2.2.1"
 
 kew@^0.7.0:
   version "0.7.0"
@@ -5701,27 +5242,11 @@ klaw@^1.0.0:
   optionalDependencies:
     graceful-fs "^4.1.9"
 
-labeled-stream-splicer@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/labeled-stream-splicer/-/labeled-stream-splicer-2.0.0.tgz#a52e1d138024c00b86b1c0c91f677918b8ae0a59"
-  integrity sha1-pS4dE4AkwAuGscDJH2d5GLiuClk=
-  dependencies:
-    inherits "^2.0.1"
-    isarray "~0.0.1"
-    stream-splicer "^2.0.0"
-
 lazy-cache@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
   integrity sha1-odePw6UEdMuAhF07O24dpJpEbo4=
 
-lazy-cache@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-2.0.2.tgz#b9190a4f913354694840859f8a8f7084d8822264"
-  integrity sha1-uRkKT5EzVGlIQIWfio9whNiCImQ=
-  dependencies:
-    set-getter "^0.1.0"
-
 lazystream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
@@ -5736,11 +5261,6 @@ lcid@^1.0.0:
   dependencies:
     invert-kv "^1.0.0"
 
-left-pad@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/left-pad/-/left-pad-1.2.0.tgz#d30a73c6b8201d8f7d8e7956ba9616087a68e0ee"
-  integrity sha1-0wpzxrggHY99jnlWupYWCHpo4O4=
-
 leven@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
@@ -5754,13 +5274,6 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
-lexical-scope@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/lexical-scope/-/lexical-scope-1.2.0.tgz#fcea5edc704a4b3a8796cdca419c3a0afaf22df4"
-  integrity sha1-/Ope3HBKSzqHls3KQZw6CvryLfQ=
-  dependencies:
-    astw "^2.0.0"
-
 libbase64@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/libbase64/-/libbase64-0.1.0.tgz#62351a839563ac5ff5bd26f12f60e9830bb751e6"
@@ -5781,21 +5294,21 @@ libqp@1.1.0:
   integrity sha1-9ebgatdLeU+1tbZpiL9yjvHe2+g=
 
 lint-staged@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.0.0.tgz#57926c63201e7bd38ca0576d74391efa699b4a9d"
-  integrity sha512-6Z89we28Qy1Ez7ZxO8yYfPKqzdxkSjnURq1d3RS2gKkZrA135xN+ptF3EWHrcHyBMmgA20vA7dGCQGj+OMS22g==
+  version "7.3.0"
+  resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.3.0.tgz#90ff33e5ca61ed3dbac35b6f6502dbefdc0db58d"
+  integrity sha512-AXk40M9DAiPi7f4tdJggwuKIViUplYtVj1os1MVEteW7qOkU50EOehayCfO9TsoGK24o/EsWb41yrEgfJDDjCw==
   dependencies:
-    app-root-path "^2.0.1"
     chalk "^2.3.1"
     commander "^2.14.1"
-    cosmiconfig "^4.0.0"
+    cosmiconfig "^5.0.2"
     debug "^3.1.0"
     dedent "^0.7.0"
     execa "^0.9.0"
     find-parent-dir "^0.3.0"
     is-glob "^4.0.0"
-    jest-validate "^22.4.0"
-    listr "^0.13.0"
+    is-windows "^1.0.2"
+    jest-validate "^23.5.0"
+    listr "^0.14.1"
     lodash "^4.17.5"
     log-symbols "^2.2.0"
     micromatch "^3.1.8"
@@ -5803,8 +5316,9 @@ lint-staged@^7.0.0:
     p-map "^1.1.1"
     path-is-inside "^1.0.2"
     pify "^3.0.0"
-    please-upgrade-node "^3.0.1"
-    staged-git-files "1.1.0"
+    please-upgrade-node "^3.0.2"
+    staged-git-files "1.1.1"
+    string-argv "^0.0.2"
     stringify-object "^3.2.2"
 
 listr-silent-renderer@^1.1.1:
@@ -5836,28 +5350,20 @@ listr-verbose-renderer@^0.4.0:
     date-fns "^1.27.2"
     figures "^1.7.0"
 
-listr@^0.13.0:
-  version "0.13.0"
-  resolved "https://registry.yarnpkg.com/listr/-/listr-0.13.0.tgz#20bb0ba30bae660ee84cc0503df4be3d5623887d"
-  integrity sha1-ILsLowuuZg7oTMBQPfS+PVYjiH0=
+listr@^0.14.1:
+  version "0.14.2"
+  resolved "https://registry.yarnpkg.com/listr/-/listr-0.14.2.tgz#cbe44b021100a15376addfc2d79349ee430bfe14"
+  integrity sha512-vmaNJ1KlGuGWShHI35X/F8r9xxS0VTHh9GejVXwSN20fG5xpq3Jh4bJbnumoT6q5EDM/8/YP1z3YMtQbFmhuXw==
   dependencies:
-    chalk "^1.1.3"
-    cli-truncate "^0.2.1"
-    figures "^1.7.0"
-    indent-string "^2.1.0"
-    is-observable "^0.2.0"
+    "@samverschueren/stream-to-observable" "^0.3.0"
+    is-observable "^1.1.0"
     is-promise "^2.1.0"
     is-stream "^1.1.0"
     listr-silent-renderer "^1.1.1"
     listr-update-renderer "^0.4.0"
     listr-verbose-renderer "^0.4.0"
-    log-symbols "^1.0.2"
-    log-update "^1.0.2"
-    ora "^0.2.3"
     p-map "^1.1.1"
-    rxjs "^5.4.2"
-    stream-to-observable "^0.2.0"
-    strip-ansi "^3.0.1"
+    rxjs "^6.1.0"
 
 load-json-file@^1.0.0:
   version "1.1.0"
@@ -5899,9 +5405,9 @@ loader-fs-cache@^1.0.0:
     mkdirp "0.5.1"
 
 loader-runner@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
-  integrity sha1-9IKuqC1UPgeSFwDVpG7yb9rGuKI=
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.1.tgz#026f12fe7c3115992896ac02ba022ba92971b979"
+  integrity sha512-By6ZFY7ETWOc9RFaAIb23IjJVcM4dvJC/N57nmdz9RSkMXvAXGI7SyVlAw3v8vjtDRlqThgVDVmTnr9fqMlxkw==
 
 loader-utils@^1.0.0, loader-utils@^1.0.2, loader-utils@^1.1.0:
   version "1.1.0"
@@ -6021,6 +5527,11 @@ lodash.create@3.1.1:
     lodash._basecreate "^3.0.0"
     lodash._isiterateecall "^3.0.0"
 
+lodash.debounce@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-4.0.8.tgz#82d79bff30a67c4005ffd5e2515300ad9ca4d7af"
+  integrity sha1-gteb/zCmfEAF/9XiUVMArZyk168=
+
 lodash.defaultsdeep@4.3.2:
   version "4.3.2"
   resolved "https://registry.yarnpkg.com/lodash.defaultsdeep/-/lodash.defaultsdeep-4.3.2.tgz#6c1a586e6c5647b0e64e2d798141b8836158be8a"
@@ -6067,11 +5578,6 @@ lodash.map@^4.5.1:
   resolved "https://registry.yarnpkg.com/lodash.map/-/lodash.map-4.6.0.tgz#771ec7839e3473d9c4cde28b19394c3562f4f6d3"
   integrity sha1-dx7Hg540c9nEzeKLGTlMNWL09tM=
 
-lodash.memoize@~3.0.3:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-3.0.4.tgz#2dcbd2c287cbc0a55cc42328bd0c736150d53e3f"
-  integrity sha1-LcvSwofLwKVcxCMovQxzYVDVPj8=
-
 lodash.mergewith@^4.0.0:
   version "4.6.1"
   resolved "https://registry.yarnpkg.com/lodash.mergewith/-/lodash.mergewith-4.6.1.tgz#639057e726c3afbdb3e7d42741caa8d6e4335927"
@@ -6082,11 +5588,6 @@ lodash.rest@^4.0.0:
   resolved "https://registry.yarnpkg.com/lodash.rest/-/lodash.rest-4.0.5.tgz#954ef75049262038c96d1fc98b28fdaf9f0772aa"
   integrity sha1-lU73UEkmIDjJbR/Jiyj9r58Hcqo=
 
-lodash.sortby@^4.7.0:
-  version "4.7.0"
-  resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
-  integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
-
 lodash.template@^4.0.2, lodash.template@^4.4.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/lodash.template/-/lodash.template-4.4.0.tgz#e73a0385c8355591746e020b99679c690e68fba0"
@@ -6107,27 +5608,17 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@4.16.2:
-  version "4.16.2"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.16.2.tgz#3e626db827048a699281a8a125226326cfc0e652"
-  integrity sha1-PmJtuCcEimmSgaihJSJjJs/A5lI=
-
-lodash@4.17.2:
-  version "4.17.2"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.2.tgz#34a3055babe04ce42467b607d700072c7ff6bf42"
-  integrity sha1-NKMFW6vgTOQkZ7YH1wAHLH/2v0I=
+lodash@4.17.10:
+  version "4.17.10"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+  integrity sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==
 
-lodash@^3.8.0:
-  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
-  integrity sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=
-
-lodash@^4.0.0, lodash@^4.0.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.16.6, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
+lodash@4.17.5:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
   integrity sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw==
 
-lodash@^4.17.10:
+lodash@^4.0.0, lodash@^4.0.1, lodash@^4.15.0, lodash@^4.16.6, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
@@ -6154,22 +5645,22 @@ log-update@^1.0.2:
     ansi-escapes "^1.0.0"
     cli-cursor "^1.0.2"
 
-log4js@^2.3.9:
-  version "2.5.3"
-  resolved "https://registry.yarnpkg.com/log4js/-/log4js-2.5.3.tgz#38bb7bde5e9c1c181bd75e8bc128c5cd0409caf1"
-  integrity sha512-YL/qpTxYtK0iWWbuKCrevDZz5lh+OjyHHD+mICqpjnYGKdNRBvPeh/1uYjkKUemT1CSO4wwLOwphWMpKAnD9kw==
+log4js@^2.5.3:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/log4js/-/log4js-2.11.0.tgz#bf3902eff65c6923d9ce9cfbd2db54160e34005a"
+  integrity sha512-z1XdwyGFg8/WGkOyF6DPJjivCWNLKrklGdViywdYnSKOvgtEBo2UyEMZS5sD2mZrQlU3TvO8wDWLc8mzE1ncBQ==
   dependencies:
-    circular-json "^0.5.1"
+    circular-json "^0.5.4"
     date-format "^1.2.0"
     debug "^3.1.0"
-    semver "^5.3.0"
-    streamroller "^0.7.0"
+    semver "^5.5.0"
+    streamroller "0.7.0"
   optionalDependencies:
     amqplib "^0.5.2"
     axios "^0.15.3"
     hipchat-notifier "^1.1.0"
     loggly "^1.1.0"
-    mailgun-js "^0.7.0"
+    mailgun-js "^0.18.0"
     nodemailer "^2.5.0"
     redis "^2.7.1"
     slack-node "~0.2.0"
@@ -6189,11 +5680,11 @@ longest@^1.0.1:
   integrity sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=
 
 loose-envify@^1.0.0:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
-  integrity sha1-0aitM/qc4OcT1l/dCsi3SNR4yEg=
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
+  integrity sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==
   dependencies:
-    js-tokens "^3.0.0"
+    js-tokens "^3.0.0 || ^4.0.0"
 
 loud-rejection@^1.0.0:
   version "1.6.0"
@@ -6203,10 +5694,15 @@ loud-rejection@^1.0.0:
     currently-unhandled "^0.4.1"
     signal-exit "^3.0.0"
 
-lru-cache@4.1.x, lru-cache@^4.0.1, lru-cache@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.1.tgz#622e32e82488b49279114a4f9ecf45e7cd6bba55"
-  integrity sha512-q4spe4KTfsAS1SUHLO0wz8Qiyf1+vMIAgpRYioFYDMNqKfHQbg+AVDH3i4fvpl71/P1L0dBl+fQi+P37UYf0ew==
+lru-cache@2.2.x:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.2.4.tgz#6c658619becf14031d0d0b594b16042ce4dc063d"
+  integrity sha1-bGWGGb7PFAMdDQtZSxYELOTcBj0=
+
+lru-cache@^4.0.1, lru-cache@^4.1.1, lru-cache@^4.1.2:
+  version "4.1.3"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
+  integrity sha512-fFEhvcgzuIoJVUF8fYr5KR0YqxD238zgObTps31YdADwPPAp82a4M8TrckkWyx7ekNlf9aBcVn81cFwwXngrJA==
   dependencies:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
@@ -6223,12 +5719,12 @@ magic-string@^0.16.0:
   dependencies:
     vlq "^0.2.1"
 
-magic-string@^0.22.4:
-  version "0.22.4"
-  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.22.4.tgz#31039b4e40366395618c1d6cf8193c53917475ff"
-  integrity sha512-kxBL06p6iO2qPBHsqGK2b3cRwiRGpnmSuVWNhwHcMX7qJOUr1HvricYP1LZOCdkQBUp0jiWg2d6WJwR3vYgByw==
+magic-string@^0.25.1:
+  version "0.25.1"
+  resolved "https://registry.yarnpkg.com/magic-string/-/magic-string-0.25.1.tgz#b1c248b399cd7485da0fe7385c2fc7011843266e"
+  integrity sha512-sCuTz6pYom8Rlt4ISPFn6wuFodbKMIHUMv4Qko9P17dpxb7s52KJTmRuZZqHdGmLCK9AOcDare039nRIcfdkEg==
   dependencies:
-    vlq "^0.2.1"
+    sourcemap-codec "^1.4.1"
 
 mailcomposer@4.0.1:
   version "4.0.1"
@@ -6238,25 +5734,25 @@ mailcomposer@4.0.1:
     buildmail "4.0.1"
     libmime "3.0.0"
 
-mailgun-js@^0.7.0:
-  version "0.7.15"
-  resolved "https://registry.yarnpkg.com/mailgun-js/-/mailgun-js-0.7.15.tgz#ee366a20dac64c3c15c03d6c1b3e0ed795252abb"
-  integrity sha1-7jZqINrGTDwVwD1sGz4O15UlKrs=
+mailgun-js@^0.18.0:
+  version "0.18.1"
+  resolved "https://registry.yarnpkg.com/mailgun-js/-/mailgun-js-0.18.1.tgz#ee39aa18d7bb598a5ce9ede84afb681defc8a6b0"
+  integrity sha512-lvuMP14u24HS2uBsJEnzSyPMxzU2b99tQsIx1o6QNjqxjk8b3WvR+vq5oG1mjqz/IBYo+5gF+uSoDS0RkMVHmg==
   dependencies:
-    async "~2.1.2"
-    debug "~2.2.0"
-    form-data "~2.1.1"
-    inflection "~1.10.0"
+    async "~2.6.0"
+    debug "~3.1.0"
+    form-data "~2.3.0"
+    inflection "~1.12.0"
     is-stream "^1.1.0"
     path-proxy "~1.0.0"
-    proxy-agent "~2.0.0"
-    q "~1.4.0"
+    promisify-call "^2.0.2"
+    proxy-agent "~3.0.0"
     tsscmp "~1.0.0"
 
 make-dir@^1.0.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.2.0.tgz#6d6a49eead4aae296c53bbf3a1a008bd6c89469b"
-  integrity sha512-aNUAa4UMg/UougV25bbrU4ZaaKNjJ/3/xnvg/twpmKROPdKZPZ9wGgI0opdZzO8q/zUFawoUuixuOv33eZ61Iw==
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.3.0.tgz#79c1033b80515bd6d24ec9933e860ca75ee27f0c"
+  integrity sha512-2w31R7SJtieJJnQtGc7RVL2StM2vGYVfqUOvUDxH6bC6aJTxPxTF0GnIgCyu7tjockiUWAYQRbxa7vKn34s5sQ==
   dependencies:
     pify "^3.0.0"
 
@@ -6282,13 +5778,19 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+math-random@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.1.tgz#8b3aac588b8a66e4975e3cdea67f7bb329601fac"
+  integrity sha1-izqsWIuKZuSXXjzepn97sylgH6w=
+
 md5.js@^1.3.4:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.4.tgz#e9bdbde94a20a5ac18b04340fc5764d5b09d901d"
-  integrity sha1-6b296UogpawYsENA/Fdk1bCdkB0=
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.5.tgz#b5d07b8e3216e3e27cd728d72f70d1e6a342005f"
+  integrity sha512-xitP+WxNPcTTOgnTJcrhM0xvdPepipPSf3I8EIpGKeFLjt3PlJLIDG3u8EX53ZIubkb+5U2+3rELYpEhHhzdkg==
   dependencies:
     hash-base "^3.0.0"
     inherits "^2.0.1"
+    safe-buffer "^5.1.2"
 
 media-typer@0.3.0:
   version "0.3.0"
@@ -6327,9 +5829,9 @@ meow@^3.3.0:
     trim-newlines "^1.0.0"
 
 meow@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/meow/-/meow-4.0.0.tgz#fd5855dd008db5b92c552082db1c307cba20b29d"
-  integrity sha512-Me/kel335m6vMKmEmA6c87Z6DUFW3JqkINRnxkbC+A/PUm0D5Fl2dEBQrPKnqCL9Te/CIa1MUt/0InMJhuC/sw==
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/meow/-/meow-4.0.1.tgz#d48598f6f4b1472f35bf6317a95945ace347f975"
+  integrity sha512-xcSBHD5Z86zaOc+781KrupuHAzeGXSLtiAOmBsiLDiPSaYSB6hdew2ng9EBAnZ62jagG9MHAOdxpDi/lWBFJ/A==
   dependencies:
     camelcase-keys "^4.0.0"
     decamelize-keys "^1.0.0"
@@ -6346,7 +5848,7 @@ merge@^1.2.0:
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
   integrity sha1-dTHjnUlJwoGma4xabgJl6LBYlNo=
 
-micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
+micromatch@^2.3.11, micromatch@^2.3.7:
   version "2.3.11"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
   integrity sha1-hmd8l9FyCzY0MdBNDRUpO9OMFWU=
@@ -6365,10 +5867,10 @@ micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
     parse-glob "^3.0.4"
     regex-cache "^0.4.2"
 
-micromatch@^3.1.4, micromatch@^3.1.8:
-  version "3.1.9"
-  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.9.tgz#15dc93175ae39e52e93087847096effc73efcf89"
-  integrity sha512-SlIz6sv5UPaAVVFRKodKjCg48EbNoIhgetzfK/Cy0v5U52Z6zB136M8tp0UC9jM53LYbmIRihJszvvqpKkfm9g==
+micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8:
+  version "3.1.10"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
+  integrity sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==
   dependencies:
     arr-diff "^4.0.0"
     array-unique "^0.3.2"
@@ -6382,7 +5884,7 @@ micromatch@^3.1.4, micromatch@^3.1.8:
     object.pick "^1.3.0"
     regex-not "^1.0.0"
     snapdragon "^0.8.1"
-    to-regex "^3.0.1"
+    to-regex "^3.0.2"
 
 miller-rabin@^4.0.0:
   version "4.0.1"
@@ -6392,31 +5894,19 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
-mime-db@~1.33.0:
-  version "1.33.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
-  integrity sha512-BHJ/EKruNIqJf/QahvxwQZXKygOQ256myeN/Ew+THcAa5q+PjyTTMMeNQC4DZw5AwfvelsUrA6B67NKMqXDbzQ==
-
-mime-db@~1.36.0:
-  version "1.36.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.36.0.tgz#5020478db3c7fe93aad7bbcc4dcf869c43363397"
-  integrity sha512-L+xvyD9MkoYMXb1jAmzI/lWYAxAMCPvIBSWur0PZ5nOf5euahRLVqH//FKW9mWp2lkqUgYiXPgkzfMUFi4zVDw==
+mime-db@~1.37.0:
+  version "1.37.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.37.0.tgz#0b6a0ce6fdbe9576e25f1f2d2fde8830dc0ad0d8"
+  integrity sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==
 
-mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.7:
-  version "2.1.18"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
-  integrity sha512-lc/aahn+t4/SWV/qcmumYjymLsWfN3ELhpmVuUFjgsORruuZPVSwAQryq+HHGvO/SI2KVX26bx+En+zhM8g8hQ==
+mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19, mime-types@~2.1.7:
+  version "2.1.21"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.21.tgz#28995aa1ecb770742fe6ae7e58f9181c744b3f96"
+  integrity sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==
   dependencies:
-    mime-db "~1.33.0"
+    mime-db "~1.37.0"
 
-mime-types@~2.1.19:
-  version "2.1.20"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.20.tgz#930cb719d571e903738520f8470911548ca2cc19"
-  integrity sha512-HrkrPaP9vGuWbLK1B1FfgAkbqNjIuy4eHlIYnFi7kamZyLLrGlo2mpcx0bBmNpKqBtYtAfGbodDddIgddSJC2A==
-  dependencies:
-    mime-db "~1.36.0"
-
-mime@^1.3.4, mime@^1.4.1, mime@^1.5.0:
+mime@^1.3.4, mime@^1.5.0, mime@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
   integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
@@ -6426,10 +5916,10 @@ mimic-fn@^1.0.0:
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
   integrity sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==
 
-minimalistic-assert@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.0.tgz#702be2dda6b37f4836bcb3f5db56641b64a1d3d3"
-  integrity sha1-cCvi3aazf0g2vLP121ZkG2Sh09M=
+minimalistic-assert@^1.0.0, minimalistic-assert@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
+  integrity sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A==
 
 minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
@@ -6473,6 +5963,21 @@ minimist@~0.0.1:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
+minipass@^2.2.1, minipass@^2.3.3:
+  version "2.3.5"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
+  integrity sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==
+  dependencies:
+    safe-buffer "^5.1.2"
+    yallist "^3.0.0"
+
+minizlib@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.1.1.tgz#6734acc045a46e61d596a43bb9d9cd326e19cc42"
+  integrity sha512-TrfjCjk4jLhcJyGMYymBH6oTXcWjYbUAXTHDbtnWHjZC25h0cdajHuPE1zxb4DVmu8crfh+HwH/WMuyLG0nHBg==
+  dependencies:
+    minipass "^2.2.1"
+
 mixin-deep@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
@@ -6481,14 +5986,7 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-mkdirp@0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.0.tgz#1d73076a6df986cd9344e15e71fcc05a4c9abf12"
-  integrity sha1-HXMHam35hs2TROFecfzAWkyavxI=
-  dependencies:
-    minimist "0.0.8"
-
-mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0:
+mkdirp@0.5.1, mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
@@ -6518,30 +6016,9 @@ mocha-nightwatch@3.2.2:
     supports-color "3.1.2"
 
 modify-values@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/modify-values/-/modify-values-1.0.0.tgz#e2b6cdeb9ce19f99317a53722f3dbf5df5eaaab2"
-  integrity sha1-4rbN65zhn5kxelNyLz2/XfXqqrI=
-
-module-deps@^4.0.8:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/module-deps/-/module-deps-4.1.1.tgz#23215833f1da13fd606ccb8087b44852dcb821fd"
-  integrity sha1-IyFYM/HaE/1gbMuAh7RIUty4If0=
-  dependencies:
-    JSONStream "^1.0.3"
-    browser-resolve "^1.7.0"
-    cached-path-relative "^1.0.0"
-    concat-stream "~1.5.0"
-    defined "^1.0.0"
-    detective "^4.0.0"
-    duplexer2 "^0.1.2"
-    inherits "^2.0.1"
-    parents "^1.0.0"
-    readable-stream "^2.0.2"
-    resolve "^1.1.3"
-    stream-combiner2 "^1.1.1"
-    subarg "^1.0.0"
-    through2 "^2.0.0"
-    xtend "^4.0.0"
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/modify-values/-/modify-values-1.0.1.tgz#b3939fa605546474e3e3e3c63d64bd43b4ee6022"
+  integrity sha512-xV2bxeN6F7oYjZWTe/YPAy6MN2M+sL4u/Rlm2AHCIVGfo2p1yGmBHQ6vHehl4bRTZBdHu3TSkWdYgkwpYzAGSw==
 
 ms@0.7.1:
   version "0.7.1"
@@ -6553,6 +6030,11 @@ ms@2.0.0:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
   integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
 
+ms@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
+  integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
+
 mute-stream@0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.6.tgz#48962b19e169fd1dfc240b3f1e7317627bbc47db"
@@ -6563,22 +6045,21 @@ mute-stream@0.0.7:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
-nan@^2.3.0:
-  version "2.9.2"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.9.2.tgz#f564d75f5f8f36a6d9456cca7a6c4fe488ab7866"
-  integrity sha512-ltW65co7f3PQWBDbqVvaU1WtFJUsNW7sWWm4HINhbMQIyVyzIeyZ8toX5TC5eeooE6piZoaEh4cZkueSKG3KYw==
+nan@^2.9.2:
+  version "2.11.1"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.11.1.tgz#90e22bccb8ca57ea4cd37cc83d3819b52eea6766"
+  integrity sha512-iji6k87OSXa0CcrLl9z+ZiYSuR2o+c0bGuNmXdrhTQTakxytAFsC56SArGYoiHlJlFoHSnvmhpceZJaXkVuOtA==
 
 nanomatch@^1.2.9:
-  version "1.2.9"
-  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
-  integrity sha512-n8R9bS8yQ6eSXaV6jHUpKzD8gLsin02w1HSFiegwrs9E098Ylhw5jdyKPaYqvHknHaSCKTPp7C8dGCQ0q9koXA==
+  version "1.2.13"
+  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
+  integrity sha512-fpoe2T0RbHwBTBUOftAfBPaDEi06ufaUai0mE6Yn1kacc3SnTErfb/h+X94VXzI64rKFHYImXSvdwGGCmwOqCA==
   dependencies:
     arr-diff "^4.0.0"
     array-unique "^0.3.2"
     define-property "^2.0.2"
     extend-shallow "^3.0.2"
     fragment-cache "^0.2.1"
-    is-odd "^2.0.0"
     is-windows "^1.0.2"
     kind-of "^6.0.2"
     object.pick "^1.3.0"
@@ -6591,30 +6072,44 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
+needle@^2.2.1:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/needle/-/needle-2.2.4.tgz#51931bff82533b1928b7d1d69e01f1b00ffd2a4e"
+  integrity sha512-HyoqEb4wr/rsoaIDfTH2aVL9nWtQqba2/HvMv+++m8u0dz808MaagKILxtfeSN7QU7nvbQ79zk3vYOJp9zsNEA==
+  dependencies:
+    debug "^2.1.2"
+    iconv-lite "^0.4.4"
+    sax "^1.2.4"
+
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
   integrity sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=
 
 neo-async@^2.5.0:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.0.tgz#76b1c823130cca26acfbaccc8fbaf0a2fa33b18f"
-  integrity sha512-nJmSswG4As/MkRq7QZFuH/sf/yuv8ODdMZrY4Bedjp77a5MK4A6s7YbBB64c9u79EBUOfXUXBvArmvzTD0X+6g==
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.0.tgz#b9d15e4d71c6762908654b5183ed38b753340835"
+  integrity sha512-MFh0d/Wa7vkKO3Y3LlacqAEeHK0mckVqzDieUKTT+KGxi+zIpeVsFxymkIiRpbpDziHc290Xr9A1O4Om7otoRA==
 
-netmask@~1.0.4:
+netmask@^1.0.6, netmask@~1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/netmask/-/netmask-1.0.6.tgz#20297e89d86f6f6400f250d9f4f6b4c1945fcd35"
   integrity sha1-ICl+idhvb2QA8lDZ9Pa0wZRfzTU=
 
+next-tick@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
+  integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
+
 nightwatch-helpers@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/nightwatch-helpers/-/nightwatch-helpers-1.2.0.tgz#cdefeb7635074a141825a7b6d1b955b6d7810a0f"
   integrity sha1-ze/rdjUHShQYJae20blVtteBCg8=
 
 nightwatch@^0.9.16:
-  version "0.9.20"
-  resolved "https://registry.yarnpkg.com/nightwatch/-/nightwatch-0.9.20.tgz#156d17cd058cbc31f43ab18e915f7ec297fb53e0"
-  integrity sha1-FW0XzQWMvDH0OrGOkV9+wpf7U+A=
+  version "0.9.21"
+  resolved "https://registry.yarnpkg.com/nightwatch/-/nightwatch-0.9.21.tgz#9e794a7514b4fd5f46602d368e50515232ab9e90"
+  integrity sha1-nnlKdRS0/V9GYC02jlBRUjKrnpA=
   dependencies:
     chai-nightwatch "~0.1.x"
     ejs "2.5.7"
@@ -6627,6 +6122,14 @@ nightwatch@^0.9.16:
     proxy-agent "2.0.0"
     q "1.4.1"
 
+node-fetch@1.6.3:
+  version "1.6.3"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.6.3.tgz#dc234edd6489982d58e8f0db4f695029abcd8c04"
+  integrity sha1-3CNO3WSJmC1Y6PDbT2lQKavNjAQ=
+  dependencies:
+    encoding "^0.1.11"
+    is-stream "^1.0.1"
+
 node-libs-browser@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/node-libs-browser/-/node-libs-browser-2.1.0.tgz#5f94263d404f6e44767d726901fff05478d600df"
@@ -6661,22 +6164,21 @@ node-modules-regexp@^1.0.0:
   resolved "https://registry.yarnpkg.com/node-modules-regexp/-/node-modules-regexp-1.0.0.tgz#8d9dbe28964a4ac5712e9131642107c71e90ec40"
   integrity sha1-jZ2+KJZKSsVxLpExZCEHxx6Q7EA=
 
-node-pre-gyp@^0.6.39:
-  version "0.6.39"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.6.39.tgz#c00e96860b23c0e1420ac7befc5044e1d78d8649"
-  integrity sha512-OsJV74qxnvz/AMGgcfZoDaeDXKD3oY3QVIbBmwszTFkRisTSXbMQyn4UWzUMOtA5SVhrBZOTp0wcoSBgfMfMmQ==
+node-pre-gyp@^0.10.0:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.3.tgz#3070040716afdc778747b61b6887bf78880b80fc"
+  integrity sha512-d1xFs+C/IPS8Id0qPTZ4bUT8wWryfR/OzzAFxweG+uLN85oPzyo2Iw6bVlLQ/JOdgNonXLCoRyqDzDWq4iw72A==
   dependencies:
     detect-libc "^1.0.2"
-    hawk "3.1.3"
     mkdirp "^0.5.1"
+    needle "^2.2.1"
     nopt "^4.0.1"
+    npm-packlist "^1.1.6"
     npmlog "^4.0.2"
-    rc "^1.1.7"
-    request "2.81.0"
+    rc "^1.2.7"
     rimraf "^2.6.1"
     semver "^5.3.0"
-    tar "^2.2.1"
-    tar-pack "^3.4.0"
+    tar "^4"
 
 node-releases@^1.0.0-alpha.14:
   version "1.0.0-alpha.14"
@@ -6783,6 +6285,19 @@ normalize-path@^2.0.0, normalize-path@^2.0.1, normalize-path@^2.1.1:
   dependencies:
     remove-trailing-separator "^1.0.1"
 
+npm-bundled@^1.0.1:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.0.5.tgz#3c1732b7ba936b3a10325aef616467c0ccbcc979"
+  integrity sha512-m/e6jgWu8/v5niCUKQi9qQl8QdeEduFA96xHDDzFGqly0OOjI7c+60KM/2sppfnUU9JJagf+zs+yGhqSOFj71g==
+
+npm-packlist@^1.1.6:
+  version "1.1.12"
+  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.1.12.tgz#22bde2ebc12e72ca482abd67afc51eb49377243a"
+  integrity sha512-WJKFOVMeAlsU/pjXuqVdzU0WfgtIBCupkEVwn+1Y0ERAbUfWw8R4GjgVbaKnUjRoD2FoQbHOCbOyT5Mbs9Lw4g==
+  dependencies:
+    ignore-walk "^3.0.1"
+    npm-bundled "^1.0.1"
+
 npm-path@^2.0.2:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/npm-path/-/npm-path-2.0.4.tgz#c641347a5ff9d6a09e4d9bce5580c4f505278e64"
@@ -6826,11 +6341,6 @@ number-is-nan@^1.0.0:
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
   integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
 
-nwmatcher@^1.4.3:
-  version "1.4.3"
-  resolved "https://registry.yarnpkg.com/nwmatcher/-/nwmatcher-1.4.3.tgz#64348e3b3d80f035b40ac11563d278f8b72db89c"
-  integrity sha512-IKdSTiDWCarf2JTS5e9e2+5tPZGdkRJ79XjYV0pzK8Q9BpsFyBq1RGKxzs7Q8UBushGw7m6TzVKz6fcY99iSWw==
-
 oauth-sign@~0.8.1, oauth-sign@~0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
@@ -6861,9 +6371,9 @@ object-copy@^0.1.0:
     kind-of "^3.0.3"
 
 object-hash@^1.1.4:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.2.0.tgz#e96af0e96981996a1d47f88ead8f74f1ebc4422b"
-  integrity sha512-smRWXzkvxw72VquyZ0wggySl7PFUtoDhvhpdwgESXxUrH7vVhhp9asfup1+rVLrhsl7L45Ee1Q/l5R2Ul4MwUg==
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.3.0.tgz#76d9ba6ff113cf8efc0d996102851fe6723963e2"
+  integrity sha512-05KzQ70lSeGSrZJQXE5wNDiTkBJDlUT/myi6RX9dVIvz7a7Qh4oH93BQdiPMn27nldYvVQCKMUaM83AfizZlsQ==
 
 object-keys@^1.0.12:
   version "1.0.12"
@@ -6907,7 +6417,7 @@ on-finished@~2.3.0:
   dependencies:
     ee-first "1.1.1"
 
-once@1.x, once@^1.3.0, once@^1.3.3, once@^1.4.0:
+once@1.x, once@^1.3.0, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
@@ -6926,11 +6436,31 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
+opencollective@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/opencollective/-/opencollective-1.0.3.tgz#aee6372bc28144583690c3ca8daecfc120dd0ef1"
+  integrity sha1-ruY3K8KBRFg2kMPKja7PwSDdDvE=
+  dependencies:
+    babel-polyfill "6.23.0"
+    chalk "1.1.3"
+    inquirer "3.0.6"
+    minimist "1.2.0"
+    node-fetch "1.6.3"
+    opn "4.0.2"
+
 opener@~1.4.0:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/opener/-/opener-1.4.3.tgz#5c6da2c5d7e5831e8ffa3964950f8d6674ac90b8"
   integrity sha1-XG2ixdflgx6P+jlklQ+NZnSskLg=
 
+opn@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
+  integrity sha1-erwi5kTf9jsKltWrfyeQwPAavJU=
+  dependencies:
+    object-assign "^4.0.1"
+    pinkie-promise "^2.0.0"
+
 optimist@0.6.1, optimist@0.6.x, optimist@^0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
@@ -6951,17 +6481,7 @@ optionator@^0.8.1, optionator@^0.8.2:
     type-check "~0.3.2"
     wordwrap "~1.0.0"
 
-ora@^0.2.3:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/ora/-/ora-0.2.3.tgz#37527d220adcd53c39b73571d754156d5db657a4"
-  integrity sha1-N1J9Igrc1Tw5tzVx11QVbV22V6Q=
-  dependencies:
-    chalk "^1.1.1"
-    cli-cursor "^1.0.2"
-    cli-spinners "^0.1.2"
-    object-assign "^4.0.1"
-
-os-browserify@^0.3.0, os-browserify@~0.3.0:
+os-browserify@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.3.0.tgz#854373c7f5c2315914fc9bfc6bd8238fdda1ec27"
   integrity sha1-hUNzx/XCMVkU/Jv8a9gjj92h7Cc=
@@ -7004,9 +6524,9 @@ p-finally@^1.0.0:
   integrity sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=
 
 p-limit@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.2.0.tgz#0e92b6bedcb59f022c13d0f1949dc82d15909f1c"
-  integrity sha512-Y/OtIaXtUPr4/YpMv1pCL5L5ed0rumAaAeBSj12F+bSlMdys7i8oQF/GUJmfpTS/QoaRrS/k6pma29haJpsMng==
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.3.0.tgz#b86bd5f0c25690911c7590fcbfc2010d54b3ccb8"
+  integrity sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==
   dependencies:
     p-try "^1.0.0"
 
@@ -7061,6 +6581,31 @@ pac-proxy-agent@1:
     raw-body "2"
     socks-proxy-agent "2"
 
+pac-proxy-agent@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pac-proxy-agent/-/pac-proxy-agent-3.0.0.tgz#11d578b72a164ad74bf9d5bac9ff462a38282432"
+  integrity sha512-AOUX9jES/EkQX2zRz0AW7lSx9jD//hQS8wFXBvcnd/J2Py9KaMJMqV/LPqJssj1tgGufotb2mmopGPR15ODv1Q==
+  dependencies:
+    agent-base "^4.2.0"
+    debug "^3.1.0"
+    get-uri "^2.0.0"
+    http-proxy-agent "^2.1.0"
+    https-proxy-agent "^2.2.1"
+    pac-resolver "^3.0.0"
+    raw-body "^2.2.0"
+    socks-proxy-agent "^4.0.1"
+
+pac-resolver@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pac-resolver/-/pac-resolver-3.0.0.tgz#6aea30787db0a891704deb7800a722a7615a6f26"
+  integrity sha512-tcc38bsjuE3XZ5+4vP96OfhOugrX+JcnpUbhfuc4LuXBLQhoTthOstZeoQJBDnQUDYzYmdImKsbz0xSl1/9qeA==
+  dependencies:
+    co "^4.6.0"
+    degenerator "^1.0.4"
+    ip "^1.1.5"
+    netmask "^1.0.6"
+    thunkify "^2.1.2"
+
 pac-resolver@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/pac-resolver/-/pac-resolver-2.0.0.tgz#99b88d2f193fbdeefc1c9a529c1f3260ab5277cd"
@@ -7084,17 +6629,10 @@ pako@~1.0.5:
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
   integrity sha512-lQe48YPsMJAig+yngZ87Lus+NF+3mtu7DVOBu6b/gHO1YpKwIj5AWjZ/TOS7i46HD/UixzWb1zeWDZfGZ3iYcg==
 
-parents@^1.0.0, parents@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/parents/-/parents-1.0.1.tgz#fedd4d2bf193a77745fe71e371d73c3307d9c751"
-  integrity sha1-/t1NK/GTp3dF/nHjcdc8MwfZx1E=
-  dependencies:
-    path-platform "~0.11.15"
-
 parse-asn1@^5.0.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.0.tgz#37c4f9b7ed3ab65c74817b5f2480937fbf97c712"
-  integrity sha1-N8T5t+06tlx0gXtfJICTf7+XxxI=
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
+  integrity sha512-KPx7flKXg775zZpnp9SxJlz00gTd4BmJ2yJufSc44gMCRrRQ7NSzAcSJQfifuOLgW6bEi+ftrALtsgALeB2Adw==
   dependencies:
     asn1.js "^4.0.0"
     browserify-aes "^1.0.0"
@@ -7137,11 +6675,6 @@ parse-passwd@^1.0.0:
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
   integrity sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=
 
-parse5@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"
-  integrity sha512-VrZ7eOd3T1Fk4XWNXMgiGBK/z0MG48BWG2uQNU4I72fkQuKUTZpl+u9k+CxEG0twMVzSmXEEz12z5Fnw1jIQFA==
-
 parseqs@0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.5.tgz#d5208a3738e46766e291ba2ea173684921a8b89d"
@@ -7166,7 +6699,7 @@ pascalcase@^0.1.1:
   resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
   integrity sha1-s2PlXoAGym/iF4TS2yK9FdeRfxQ=
 
-path-browserify@0.0.0, path-browserify@~0.0.0:
+path-browserify@0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/path-browserify/-/path-browserify-0.0.0.tgz#a0b870729aae214005b7d5032ec2cbbb0fb4451a"
   integrity sha1-oLhwcpquIUAFt9UDLsLLuw+0RRo=
@@ -7204,14 +6737,9 @@ path-key@^2.0.0:
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
 path-parse@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
-  integrity sha1-PBrfhx6pzWyUMbbqK9dKD/BVxME=
-
-path-platform@~0.11.15:
-  version "0.11.15"
-  resolved "https://registry.yarnpkg.com/path-platform/-/path-platform-0.11.15.tgz#e864217f74c36850f0852b78dc7bf7d4a5721bf2"
-  integrity sha1-6GQhf3TDaFDwhSt43Hv31KVyG/I=
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
+  integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
 
 path-proxy@~1.0.0:
   version "1.0.0"
@@ -7244,9 +6772,9 @@ path-type@^3.0.0:
     pify "^3.0.0"
 
 pbkdf2@^3.0.3:
-  version "3.0.14"
-  resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.14.tgz#a35e13c64799b06ce15320f459c230e68e73bade"
-  integrity sha512-gjsZW9O34fm0R7PaLHRJmLLVfSoesxztjPjE9o6R+qtVJij90ltg1joIovN9GKrRW3t1PzhDDG3UMEMFfZ+1wA==
+  version "3.0.17"
+  resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.17.tgz#976c206530617b14ebb32114239f7b09336e93a6"
+  integrity sha512-U/il5MsrZp7mGg3mSQfn742na2T+1/vHDCG5/iTI3X9MKUuYUZVLQhyRsg06mCgDBTd57TxzgZt7P+fYfjRLtA==
   dependencies:
     create-hash "^1.1.2"
     create-hmac "^1.1.4"
@@ -7259,11 +6787,6 @@ pend@~1.2.0:
   resolved "https://registry.yarnpkg.com/pend/-/pend-1.2.0.tgz#7a57eb550a6783f9115331fcf4663d5c8e007a50"
   integrity sha1-elfrVQpng/kRUzH89GY9XI4AelA=
 
-performance-now@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
-  integrity sha1-M+8wxcd9TqIcWlOGnZG1bY8lVeU=
-
 performance-now@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
@@ -7327,25 +6850,22 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
-please-upgrade-node@^3.0.1:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.0.1.tgz#0a681f2c18915e5433a5ca2cd94e0b8206a782db"
-  integrity sha1-CmgfLBiRXlQzpcos2U4Lggangts=
+please-upgrade-node@^3.0.2:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.1.1.tgz#ed320051dfcc5024fae696712c8288993595e8ac"
+  integrity sha512-KY1uHnQ2NlQHqIJQpnh/i54rKkuxCEBx+voJIS/Mvb+L2iYd2NMotwduhKTMjfC1uKoX3VXOxLjIYG66dfJTVQ==
+  dependencies:
+    semver-compare "^1.0.0"
 
 pluralize@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
   integrity sha512-ARhBOdzS3e41FbkW/XWrTEtukqqLoK5+Z/4UeDaLuSW+39JPeFgs4gCGqsrJHVZX0fUrx//4OF0K1CUGwlIFow==
 
-pn@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/pn/-/pn-1.1.0.tgz#e2f4cef0e219f463c179ab37463e4e1ecdccbafb"
-  integrity sha512-2qHaIQr2VLRFoxe2nASzsV6ef4yOOH+Fi9FBOVH6cqeSgUnoyySPZkxzLuzd+RYOQTRpROA0ztTMqxROKSb/nA==
-
 portfinder@^1.0.13:
-  version "1.0.13"
-  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.13.tgz#bb32ecd87c27104ae6ee44b5a3ccbf0ebb1aede9"
-  integrity sha1-uzLs2HwnEErm7kS1o8y/Drsa7ek=
+  version "1.0.19"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.19.tgz#07e87914a55242dcda5b833d42f018d6875b595f"
+  integrity sha512-23aeQKW9KgHe6citUrG3r9HjeX6vls0h713TAa+CwTKZwNIr/pD2ApaxYF4Um3ZZyq4ar+Siv3+fhoHaIwSOSw==
   dependencies:
     async "^1.5.2"
     debug "^2.2.0"
@@ -7366,10 +6886,10 @@ preserve@^0.2.0:
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
   integrity sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=
 
-pretty-format@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-22.4.0.tgz#237b1f7e1c50ed03bc65c03ccc29d7c8bb7beb94"
-  integrity sha512-pvCxP2iODIIk9adXlo4S3GRj0BrJiil68kByAa1PrgG97c1tClh9dLMgp3Z6cHFZrclaABt0UH8PIhwHuFLqYA==
+pretty-format@^23.6.0:
+  version "23.6.0"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-23.6.0.tgz#5eaac8eeb6b33b987b7fe6097ea6a8a146ab5760"
+  integrity sha512-zf9NV1NSlDLDjycnwm6hpFATCGl/K1lt0R/GdkAK2O5LN/rwJoB+Mh93gGJjut4YbmecbfgLWVGSTCr0Ewvvbw==
   dependencies:
     ansi-regex "^3.0.0"
     ansi-styles "^3.2.0"
@@ -7389,7 +6909,7 @@ process-nextick-args@~2.0.0:
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
   integrity sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw==
 
-process@^0.11.10, process@~0.11.0:
+process@^0.11.10:
   version "0.11.10"
   resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
   integrity sha1-czIwDoQBYb2j5podHZGn1LwW8YI=
@@ -7400,11 +6920,18 @@ progress@^1.1.8:
   integrity sha1-4mDHj2Fhzdmw5WzD4Khd4Xx6V74=
 
 progress@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
-  integrity sha1-ihvjZr+Pwj2yvSPxDG/pILQ4nR8=
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.1.tgz#c9242169342b1c29d275889c95734621b1952e31"
+  integrity sha512-OE+a6vzqazc+K6LxJrX5UPyKFvGnL5CYmq2jFGNIBWHpc4QyE49/YOumcrpQFJpfejmvRtbJzgO1zPmMCqlbBg==
+
+promisify-call@^2.0.2:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/promisify-call/-/promisify-call-2.0.4.tgz#d48c2d45652ccccd52801ddecbd533a6d4bd5fba"
+  integrity sha1-1IwtRWUszM1SgB3ey9UzptS9X7o=
+  dependencies:
+    with-callback "^1.0.2"
 
-proxy-agent@2.0.0, proxy-agent@~2.0.0:
+proxy-agent@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/proxy-agent/-/proxy-agent-2.0.0.tgz#57eb5347aa805d74ec681cb25649dba39c933499"
   integrity sha1-V+tTR6qAXXTsaByyVknbo5yTNJk=
@@ -7418,6 +6945,25 @@ proxy-agent@2.0.0, proxy-agent@~2.0.0:
     pac-proxy-agent "1"
     socks-proxy-agent "2"
 
+proxy-agent@~3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/proxy-agent/-/proxy-agent-3.0.3.tgz#1c1a33db60ef5f2e9e35b876fd63c2bc681c611d"
+  integrity sha512-PXVVVuH9tiQuxQltFJVSnXWuDtNr+8aNBP6XVDDCDiUuDN8eRCm+ii4/mFWmXWEA0w8jjJSlePa4LXlM4jIzNA==
+  dependencies:
+    agent-base "^4.2.0"
+    debug "^3.1.0"
+    http-proxy-agent "^2.1.0"
+    https-proxy-agent "^2.2.1"
+    lru-cache "^4.1.2"
+    pac-proxy-agent "^3.0.0"
+    proxy-from-env "^1.0.0"
+    socks-proxy-agent "^4.0.1"
+
+proxy-from-env@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.0.0.tgz#33c50398f70ea7eb96d21f7b817630a55791c7ee"
+  integrity sha1-M8UDmPcOp+uW0h97gXYwpVeRx+4=
+
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
@@ -7434,32 +6980,33 @@ psl@^1.1.24:
   integrity sha512-AeUmQ0oLN02flVHXWh9sSJF7mcdFq0ppid/JkErufc3hGIV/AMa8Fo9VgDo/cT2jFdOWoFvHp90qqBH54W+gjQ==
 
 public-encrypt@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/public-encrypt/-/public-encrypt-4.0.0.tgz#39f699f3a46560dd5ebacbca693caf7c65c18cc6"
-  integrity sha1-OfaZ86RlYN1eusvKaTyvfGXBjMY=
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/public-encrypt/-/public-encrypt-4.0.3.tgz#4fcc9d77a07e48ba7527e7cbe0de33d0701331e0"
+  integrity sha512-zVpa8oKZSz5bTMTFClc1fQOnyyEzpl5ozpi1B5YcvBrdohMjH2rfsBtyXcuNuwjsDIXmBYlF2N5FlJYhR29t8Q==
   dependencies:
     bn.js "^4.1.0"
     browserify-rsa "^4.0.0"
     create-hash "^1.1.0"
     parse-asn1 "^5.0.0"
     randombytes "^2.0.1"
+    safe-buffer "^5.1.2"
 
 punycode@1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
   integrity sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0=
 
-punycode@1.4.1, punycode@^1.2.4, punycode@^1.3.2, punycode@^1.4.1:
+punycode@1.4.1, punycode@^1.2.4, punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
   integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
 
 punycode@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.0.tgz#5f863edc89b96db09074bad7947bf09056ca4e7d"
-  integrity sha1-X4Y+3Im5bbCQdLrXlHvwkFbKTn0=
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
+  integrity sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==
 
-q@1.4.1, q@~1.4.0:
+q@1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
   integrity sha1-VXBbzZPF82c1MMLCy8DCs63cKG4=
@@ -7474,10 +7021,10 @@ qjobs@^1.1.4:
   resolved "https://registry.yarnpkg.com/qjobs/-/qjobs-1.2.0.tgz#c45e9c61800bd087ef88d7e256423bdd49e5d071"
   integrity sha512-8YOJEHtxpySA3fFDyCRxA+UUV+fA+rTWnuWvylOK/NCjhY+b4ocCtmu8TtsWb+mYeU+GCHf/S66KZF/AsteKHg==
 
-qs@6.5.1, qs@~6.5.1:
-  version "6.5.1"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
-  integrity sha512-eRzhrN1WSINYCDCbrz796z37LOe3m5tmW7RQf6oBntukAG1nmovJvhnwHHRMAfeoItc1m2Hk02WER2aQ/iqs+A==
+qs@6.5.2, qs@~6.5.1, qs@~6.5.2:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+  integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
 
 qs@~2.3.3:
   version "2.3.3"
@@ -7489,22 +7036,7 @@ qs@~6.2.0:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.3.tgz#1cfcb25c10a9b2b483053ff39f5dfc9233908cfe"
   integrity sha1-HPyyXBCpsrSDBT/zn138kjOQjP4=
 
-qs@~6.3.0:
-  version "6.3.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.3.2.tgz#e75bd5f6e268122a2a0e0bda630b2550c166502c"
-  integrity sha1-51vV9uJoEioqDgvaYwslUMFmUCw=
-
-qs@~6.4.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
-  integrity sha1-E+JtKK1rD/qpExLNO/cI7TUecjM=
-
-qs@~6.5.2:
-  version "6.5.2"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
-  integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
-
-querystring-es3@^0.2.0, querystring-es3@~0.2.0:
+querystring-es3@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
   integrity sha1-nsYfeQSYdXB9aUFFlv2Qek1xHnM=
@@ -7519,13 +7051,14 @@ quick-lru@^1.0.0:
   resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
   integrity sha1-Q2CxfGETatOAeDl/8RQW4Ybc+7g=
 
-randomatic@^1.1.3:
-  version "1.1.7"
-  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-1.1.7.tgz#c7abe9cc8b87c0baa876b19fde83fd464797e38c"
-  integrity sha512-D5JUjPyJbaJDkuAazpVnSfVkLlpeO3wDlPROTMLGKG1zMFNFRgrciKo1ltz/AzNTkqE0HzDx655QOL51N06how==
+randomatic@^3.0.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-3.1.1.tgz#b776efc59375984e36c537b2f51a1f0aff0da1ed"
+  integrity sha512-TuDE5KxZ0J461RVjrJZCJc+J+zCkTb1MbH9AQUq68sMhOMcy9jLcb3BrZKgp9q9Ncltdg4QVqWrH02W2EFFVYw==
   dependencies:
-    is-number "^3.0.0"
-    kind-of "^4.0.0"
+    is-number "^4.0.0"
+    kind-of "^6.0.0"
+    math-random "^1.0.1"
 
 randombytes@^2.0.0, randombytes@^2.0.1, randombytes@^2.0.5:
   version "2.0.6"
@@ -7547,33 +7080,26 @@ range-parser@^1.0.3, range-parser@^1.2.0:
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
   integrity sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=
 
-raw-body@2, raw-body@2.3.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.2.tgz#bcd60c77d3eb93cde0050295c3f379389bc88f89"
-  integrity sha1-vNYMd9Prk83gBQKVw/N5OJvIj4k=
+raw-body@2, raw-body@2.3.3, raw-body@^2.2.0:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
+  integrity sha512-9esiElv1BrZoI3rCDuOuKCBRbuApGGaDPQfjSflGxdy4oyzqghxu6klEkkVIvBje+FF0BX9coEv8KqW6X/7njw==
   dependencies:
     bytes "3.0.0"
-    http-errors "1.6.2"
-    iconv-lite "0.4.19"
+    http-errors "1.6.3"
+    iconv-lite "0.4.23"
     unpipe "1.0.0"
 
-rc@^1.1.7:
-  version "1.2.5"
-  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.5.tgz#275cd687f6e3b36cc756baa26dfee80a790301fd"
-  integrity sha1-J1zWh/bjs2zHVrqibf7oCnkDAf0=
+rc@^1.2.7:
+  version "1.2.8"
+  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
+  integrity sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==
   dependencies:
-    deep-extend "~0.4.0"
+    deep-extend "^0.6.0"
     ini "~1.3.0"
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
-read-only-stream@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/read-only-stream/-/read-only-stream-2.0.0.tgz#2724fd6a8113d73764ac288d4386270c1dbf17f0"
-  integrity sha1-JyT9aoET1zdkrCiNQ4YnDB2/F/A=
-  dependencies:
-    readable-stream "^2.0.2"
-
 read-pkg-up@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
@@ -7643,20 +7169,29 @@ readable-stream@1.1.x, "readable-stream@1.x >=1.1.9":
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3:
-  version "2.3.5"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.5.tgz#b4f85003a938cbb6ecbce2a124fb1012bd1a838d"
-  integrity sha512-tK0yDhrkygt/knjowCUiWP9YdV7c5R+8cR0r/kt9ZhBU906Fs6RpQJCEilamRJj1Nx2rWI6LkW9gKqjTkshhEw==
+readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6:
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
     isarray "~1.0.0"
     process-nextick-args "~2.0.0"
     safe-buffer "~5.1.1"
-    string_decoder "~1.0.3"
+    string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@~2.0.0, readable-stream@~2.0.5:
+readable-stream@^3.0.6:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.0.6.tgz#351302e4c68b5abd6a2ed55376a7f9a25be3057a"
+  integrity sha512-9E1oLoOWfhSXHGv6QlwXJim7uNzd9EVlWK+21tCU9Ju/kR0/p2AZYPz4qSchgO8PlLIH4FpZYfzwS+rEksZjIg==
+  dependencies:
+    inherits "^2.0.3"
+    string_decoder "^1.1.1"
+    util-deprecate "^1.0.1"
+
+readable-stream@~2.0.5:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
   integrity sha1-j5A0HmilPMySh4jaz80Rs265t44=
@@ -7669,14 +7204,13 @@ readable-stream@~2.0.0, readable-stream@~2.0.5:
     util-deprecate "~1.0.1"
 
 readdirp@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
-  integrity sha1-TtCtBg3zBzMAxIRANz9y0cxkLXg=
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.2.1.tgz#0e87622a3325aa33e892285caf8b4e846529a525"
+  integrity sha512-1JU/8q+VgFZyxwrJ+SVIOsh+KywWGpds3NTqikiKpDMZWScmAYyKIgqkO+ARvNWJfXeXR1zxz7aHF4u4CyH6vQ==
   dependencies:
-    graceful-fs "^4.1.2"
-    minimatch "^3.0.2"
+    graceful-fs "^4.1.11"
+    micromatch "^3.1.10"
     readable-stream "^2.0.2"
-    set-immediate-shim "^1.0.1"
 
 rechoir@^0.6.2:
   version "0.6.2"
@@ -7702,9 +7236,9 @@ redent@^2.0.0:
     strip-indent "^2.0.0"
 
 redis-commands@^1.2.0:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/redis-commands/-/redis-commands-1.3.5.tgz#4495889414f1e886261180b1442e7295602d83a2"
-  integrity sha512-foGF8u6MXGFF++1TZVC6icGXuMYPftKXt1FBT2vrfU9ZATNtZJ8duRC5d1lEfE8hyVe3jhelHGB91oB7I6qLsA==
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/redis-commands/-/redis-commands-1.4.0.tgz#52f9cf99153efcce56a8f86af986bd04e988602f"
+  integrity sha512-cu8EF+MtkwI4DLIT0x9P8qNTLFhQD4jLfxLR0cCNkeGzs87FN6879JOJwNQR/1zD7aSYNbU0hgsV9zGY71Itvw==
 
 redis-parser@^2.6.0:
   version "2.6.0"
@@ -7732,6 +7266,11 @@ regenerate@^1.4.0:
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.0.tgz#4a856ec4b56e4077c557589cae85e7a4c8869a11"
   integrity sha512-1G6jJVDWrt0rK99kBjvEtziZNCICAuvIPkSiUFIQxVP06RCVpq3dmDo2oi6ABpYaDYaTRr67BEhL8r1wgEZZKg==
 
+regenerator-runtime@^0.10.0:
+  version "0.10.5"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
+  integrity sha1-M2w+/BIgrc7dosn6tntaeVWjNlg=
+
 regenerator-runtime@^0.11.0:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
@@ -7759,6 +7298,11 @@ regex-not@^1.0.0, regex-not@^1.0.2:
     extend-shallow "^3.0.2"
     safe-regex "^1.1.0"
 
+regexpp@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-1.1.0.tgz#0e3516dd0b7904f413d2d4193dce4618c3a689ab"
+  integrity sha512-LOPw8FpgdQF9etWMaAfG/WRthIdXJGYp4mJ2Jgn/2lpkbod9jPn0t9UqN7AxBOKNfzRbYyVfgc7Vk4t/MpnXgw==
+
 regexpu-core@^4.1.3, regexpu-core@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-4.2.0.tgz#a3744fa03806cffe146dea4421a3e73bdcc47b1d"
@@ -7789,9 +7333,9 @@ remove-trailing-separator@^1.0.1:
   integrity sha1-wkvOKig62tW8P1jg1IJJuSN52O8=
 
 repeat-element@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
-  integrity sha1-7wiaF40Ug7quTZPrmLT55OEdmQo=
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.3.tgz#782e0d825c0c5a3bb39731f84efee6b742e6b1ce"
+  integrity sha512-ahGq0ZnV5m5XtZLMb+vP76kcAM5nkLqk0lpqAuojSKGgQtn4eRi4ZZGm2olo2zKFH+sMsWaqOCW1dqAnOru72g==
 
 repeat-string@^0.2.2:
   version "0.2.2"
@@ -7817,22 +7361,6 @@ request-progress@^2.0.1:
   dependencies:
     throttleit "^1.0.0"
 
-request-promise-core@1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.1.tgz#3eee00b2c5aa83239cfb04c5700da36f81cd08b6"
-  integrity sha1-Pu4AssWqgyOc+wTFcA2jb4HNCLY=
-  dependencies:
-    lodash "^4.13.1"
-
-request-promise-native@^1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/request-promise-native/-/request-promise-native-1.0.5.tgz#5281770f68e0c9719e5163fd3fab482215f4fda5"
-  integrity sha1-UoF3D2jgyXGeUWP9P6tIIhX0/aU=
-  dependencies:
-    request-promise-core "1.1.1"
-    stealthy-require "^1.1.0"
-    tough-cookie ">=2.3.3"
-
 request@2.75.x:
   version "2.75.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.75.0.tgz#d2b8268a286da13eaa5d01adf5d18cc90f657d93"
@@ -7860,64 +7388,10 @@ request@2.75.x:
     tough-cookie "~2.3.0"
     tunnel-agent "~0.4.1"
 
-request@2.79.0:
-  version "2.79.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.79.0.tgz#4dfe5bf6be8b8cdc37fcf93e04b65577722710de"
-  integrity sha1-Tf5b9r6LjNw3/Pk+BLZVd3InEN4=
-  dependencies:
-    aws-sign2 "~0.6.0"
-    aws4 "^1.2.1"
-    caseless "~0.11.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.0"
-    forever-agent "~0.6.1"
-    form-data "~2.1.1"
-    har-validator "~2.0.6"
-    hawk "~3.1.3"
-    http-signature "~1.1.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.7"
-    oauth-sign "~0.8.1"
-    qs "~6.3.0"
-    stringstream "~0.0.4"
-    tough-cookie "~2.3.0"
-    tunnel-agent "~0.4.1"
-    uuid "^3.0.0"
-
-request@2.81.0:
-  version "2.81.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
-  integrity sha1-xpKJRqDgbF+Nb4qTM0af/aRimKA=
-  dependencies:
-    aws-sign2 "~0.6.0"
-    aws4 "^1.2.1"
-    caseless "~0.12.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.0"
-    forever-agent "~0.6.1"
-    form-data "~2.1.1"
-    har-validator "~4.2.1"
-    hawk "~3.1.3"
-    http-signature "~1.1.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.7"
-    oauth-sign "~0.8.1"
-    performance-now "^0.2.0"
-    qs "~6.4.0"
-    safe-buffer "^5.0.1"
-    stringstream "~0.0.4"
-    tough-cookie "~2.3.0"
-    tunnel-agent "^0.6.0"
-    uuid "^3.0.0"
-
-request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.83.0:
-  version "2.83.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.83.0.tgz#ca0b65da02ed62935887808e6f510381034e3356"
-  integrity sha512-lR3gD69osqm6EYLk9wB/G1W/laGWjzH90t1vEa2xuxHD5KUrSzp9pUSfTm+YC5Nxt2T8nMPEvKlhbQayU7bgFw==
+request@2.85.0:
+  version "2.85.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.85.0.tgz#5a03615a47c61420b3eb99b7dba204f83603e1fa"
+  integrity sha512-8H7Ehijd4js+s6wuVPLjwORxD4zeuyjYugprdOXlPSqaApmL/QOy+EB/beICHVCHkGMKNh5rvihb5ov+IDw4mg==
   dependencies:
     aws-sign2 "~0.7.0"
     aws4 "^1.6.0"
@@ -7942,7 +7416,7 @@ request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.83.0:
     tunnel-agent "^0.6.0"
     uuid "^3.1.0"
 
-request@^2.87.0:
+request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.87.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
@@ -7983,21 +7457,11 @@ require-directory@^2.1.1:
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
   integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
-require-from-string@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.1.tgz#c545233e9d7da6616e9d59adfb39fc9f588676ff"
-  integrity sha1-xUUjPp19pmFunVmt+zn8n1iGdv8=
-
 require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
   integrity sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=
 
-require-relative@0.8.7:
-  version "0.8.7"
-  resolved "https://registry.yarnpkg.com/require-relative/-/require-relative-0.8.7.tgz#7999539fc9e047a37928fa196f8e1563dabd36de"
-  integrity sha1-eZlTn8ngR6N5KPoZb44VY9q9Nt4=
-
 require-uncached@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
@@ -8006,7 +7470,7 @@ require-uncached@^1.0.3:
     caller-path "^0.1.0"
     resolve-from "^1.0.0"
 
-requires-port@1.x.x:
+requires-port@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
   integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
@@ -8024,24 +7488,17 @@ resolve-from@^1.0.0:
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
   integrity sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=
 
-resolve-url@^0.2.1, resolve-url@~0.2.1:
+resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
   integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
 
-resolve@1.1.7, resolve@1.1.x:
+resolve@1.1.x:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
   integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
 
-resolve@^1.1.3, resolve@^1.1.4, resolve@^1.1.6, resolve@^1.3.3, resolve@^1.4.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.5.0.tgz#1f09acce796c9a762579f31b2c1cc4c3cddf9f36"
-  integrity sha512-hgoSGrc3pjzAPHNBg+KnFcK2HwlHTs/YrAGUr6qgTVUZmXv1UEXXl0bZNBKMA9fud6lRYFdPGz0xXxycPzmmiw==
-  dependencies:
-    path-parse "^1.0.5"
-
-resolve@^1.3.2:
+resolve@^1.1.6, resolve@^1.3.2, resolve@^1.3.3, resolve@^1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.1.tgz#82f1ec19a423ac1fbd080b0bab06ba36e84a7a26"
   integrity sha512-AicPrAC7Qu1JxPCZ9ZgCZlY35QgFnNqc+0LtbRNxnVw4TXvjQ72wnuL9JQcEBgXkI9JM8MsT9kaQoHcpCRJOYA==
@@ -8081,7 +7538,7 @@ right-pad@^1.0.1:
   resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
   integrity sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=
 
-rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1:
+rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==
@@ -8089,11 +7546,11 @@ rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.
     glob "^7.0.5"
 
 ripemd160@^2.0.0, ripemd160@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.1.tgz#0f4584295c53a3628af7e6d79aca21ce57d1c6e7"
-  integrity sha1-D0WEKVxTo2KK9+bXmsohzlfRxuc=
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.2.tgz#a1c1a6f624751577ba5d07914cbc92850585890c"
+  integrity sha512-ii4iagi25WusVoiC4B4lq7pbXfAp3D9v5CwfkY33vffw2+pkDjY1D8GaN7spsxvCSx8dkPqOZCEZyfxcmJG2IA==
   dependencies:
-    hash-base "^2.0.0"
+    hash-base "^3.0.0"
     inherits "^2.0.1"
 
 rollup-plugin-alias@^1.3.1:
@@ -8112,23 +7569,22 @@ rollup-plugin-babel@^4.0.1:
     rollup-pluginutils "^2.3.0"
 
 rollup-plugin-buble@^0.19.2:
-  version "0.19.2"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.19.2.tgz#c0590c7d3d475b5ed59f129764ec93710cc6e8dd"
-  integrity sha512-dxK0prR8j/7qhI2EZDz/evKCRuhuZMpRlUGPrRWmpg5/2V8tP1XFW+Uk0WfxyNgFfJHvy0GmxnJSTb5dIaNljQ==
+  version "0.19.4"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.19.4.tgz#b0dde11ad2736b68e94ba2aa34de7822c6e28d24"
+  integrity sha512-mahvTRn9mUVKEUyA5QbrfdybOH7tipHRe4zkKZjEGMB3YSaLW95kHFSB4Vdt7BofyG9r7zMCCmAsEqZKkRaN6A==
   dependencies:
-    buble "^0.19.2"
-    rollup-pluginutils "^2.0.1"
+    buble "^0.19.4"
+    rollup-pluginutils "^2.3.3"
 
-rollup-plugin-commonjs@^8.0.0:
-  version "8.4.1"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-8.4.1.tgz#5c9cea2b2c3de322f5fbccd147e07ed5e502d7a0"
-  integrity sha512-mg+WuD+jlwoo8bJtW3Mvx7Tz6TsIdMsdhuvCnDMoyjh0oxsVgsjB/N0X984RJCWwc5IIiqNVJhXeeITcc73++A==
+rollup-plugin-commonjs@^9.2.0:
+  version "9.2.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-commonjs/-/rollup-plugin-commonjs-9.2.0.tgz#4604e25069e0c78a09e08faa95dc32dec27f7c89"
+  integrity sha512-0RM5U4Vd6iHjL6rLvr3lKBwnPsaVml+qxOGaaNUWN1lSq6S33KhITOfHmvxV3z2vy9Mk4t0g4rNlVaJJsNQPWA==
   dependencies:
-    acorn "^5.2.1"
-    estree-walker "^0.5.0"
-    magic-string "^0.22.4"
-    resolve "^1.4.0"
-    rollup-pluginutils "^2.0.1"
+    estree-walker "^0.5.2"
+    magic-string "^0.25.1"
+    resolve "^1.8.1"
+    rollup-pluginutils "^2.3.3"
 
 rollup-plugin-flow-no-whitespace@^1.0.0:
   version "1.0.0"
@@ -8139,20 +7595,20 @@ rollup-plugin-flow-no-whitespace@^1.0.0:
     rollup-pluginutils "^1.5.2"
 
 rollup-plugin-node-resolve@^3.0.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.2.0.tgz#31534952f3ab21f9473c1d092be7ed43937ea4d4"
-  integrity sha512-stvVrKaQiNu65ObGJLCHyHH/NXjiPMt/ZHwvl444KgJPrii1zCgyg+NTK2Uy6WExL+OuUWdHd7T8EoPQDtYEkw==
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.4.0.tgz#908585eda12e393caac7498715a01e08606abc89"
+  integrity sha512-PJcd85dxfSBWih84ozRtBkB731OjXk0KnzN0oGp7WOWcarAFkVa71cV5hTJg2qpVsV2U8EUwrzHP3tvy9vS3qg==
   dependencies:
     builtin-modules "^2.0.0"
     is-module "^1.0.0"
     resolve "^1.1.6"
 
 rollup-plugin-replace@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-replace/-/rollup-plugin-replace-2.0.0.tgz#19074089c8ed57184b8cc64e967a03d095119277"
-  integrity sha512-pK9mTd/FNrhtBxcTBXoh0YOwRIShV0gGhv9qvUtNcXHxIMRZMXqfiZKVBmCRGp8/2DJRy62z2JUE7/5tP6WxOQ==
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-replace/-/rollup-plugin-replace-2.1.0.tgz#f9c07a4a89a2f8be912ee54b3f0f68d91e9ed0ae"
+  integrity sha512-SxrAIgpH/B5/W4SeULgreOemxcpEgKs2gcD42zXw50bhqGWmcnlXneVInQpAqzA/cIly4bJrOpeelmB9p4YXSQ==
   dependencies:
-    magic-string "^0.22.4"
+    magic-string "^0.25.1"
     minimatch "^3.0.2"
     rollup-pluginutils "^2.0.1"
 
@@ -8164,15 +7620,7 @@ rollup-pluginutils@^1.5.2:
     estree-walker "^0.2.1"
     minimatch "^3.0.2"
 
-rollup-pluginutils@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.0.1.tgz#7ec95b3573f6543a46a6461bd9a7c544525d0fc0"
-  integrity sha1-fslbNXP2VDpGpkYb2afFRFJdD8A=
-  dependencies:
-    estree-walker "^0.3.0"
-    micromatch "^2.3.11"
-
-rollup-pluginutils@^2.3.0:
+rollup-pluginutils@^2.0.1, rollup-pluginutils@^2.3.0, rollup-pluginutils@^2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.3.3.tgz#3aad9b1eb3e7fe8262820818840bf091e5ae6794"
   integrity sha512-2XZwja7b6P5q4RZ5FhyX1+f46xi1Z3qBKigLRZ6VTZjwbN0K1IFGMlwm06Uu0Emcre2Z63l77nq/pzn+KxIEoA==
@@ -8180,19 +7628,13 @@ rollup-pluginutils@^2.3.0:
     estree-walker "^0.5.2"
     micromatch "^2.3.11"
 
-rollup-watch@^4.0.0:
-  version "4.3.1"
-  resolved "https://registry.yarnpkg.com/rollup-watch/-/rollup-watch-4.3.1.tgz#5aa1eaeab787addf368905d102b39d6fc5ce4a8b"
-  integrity sha512-6yjnIwfjpSrqA8IafyIu7fsEyeImNR4aDjA1bQ7KWeVuiA+Clfsx8+PGQkyABWIQzmauQ//tIJ5wAxLXsXs8qQ==
+rollup@^0.66.6:
+  version "0.66.6"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.66.6.tgz#ce7d6185beb7acea644ce220c25e71ae03275482"
+  integrity sha512-J7/SWanrcb83vfIHqa8+aVVGzy457GcjA6GVZEnD0x2u4OnOd0Q1pCrEoNe8yLwM6z6LZP02zBT2uW0yh5TqOw==
   dependencies:
-    chokidar "^1.7.0"
-    require-relative "0.8.7"
-    rollup-pluginutils "^2.0.1"
-
-rollup@^0.54.1:
-  version "0.54.1"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.54.1.tgz#415a5d999421502646cf54b873fc4ce1a7393970"
-  integrity sha512-ebUUgUQ7K/sLn67CtO8Jj8H3RgKAoVWrpiJA7enOkwZPZzTCl8GC8CZ00g5jowjX80KgBmzs4Z1MV6cgglT86A==
+    "@types/estree" "0.0.39"
+    "@types/node" "*"
 
 run-async@^2.2.0:
   version "2.3.0"
@@ -8218,19 +7660,14 @@ rx@^4.1.0:
   resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
   integrity sha1-pfE/957zt0D+MKqAP7CfmIBdR4I=
 
-rxjs@^5.4.2:
-  version "5.5.6"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.6.tgz#e31fb96d6fd2ff1fd84bcea8ae9c02d007179c02"
-  integrity sha512-v4Q5HDC0FHAQ7zcBX7T2IL6O5ltl1a2GX4ENjPXg6SjDY69Cmx9v4113C99a4wGF16ClPv5Z8mghuYorVkg/kg==
+rxjs@^6.1.0:
+  version "6.3.3"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.3.3.tgz#3c6a7fa420e844a81390fb1158a9ec614f4bad55"
+  integrity sha512-JTWmoY9tWCs7zvIk/CvRjhjGaOd+OVBM987mxFo+OW66cGpdKjZcpmc74ES1sB//7Kl/PAe8+wEakuhG4pcgOw==
   dependencies:
-    symbol-observable "1.0.1"
-
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
-  integrity sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg==
+    tslib "^1.9.0"
 
-safe-buffer@^5.1.2:
+safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
@@ -8242,23 +7679,28 @@ safe-regex@^1.1.0:
   dependencies:
     ret "~0.1.10"
 
+"safer-buffer@>= 2.1.2 < 3", safer-buffer@^2.0.2, safer-buffer@^2.1.0, safer-buffer@~2.1.0:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
+  integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
+
 sauce-connect-launcher@^1.2.2:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/sauce-connect-launcher/-/sauce-connect-launcher-1.2.3.tgz#d2f931ad7ae8fdabf1968a440e7b20417aca7f86"
-  integrity sha1-0vkxrXro/avxlopEDnsgQXrKf4Y=
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/sauce-connect-launcher/-/sauce-connect-launcher-1.2.4.tgz#8d38f85242a9fbede1b2303b559f7e20c5609a1c"
+  integrity sha512-X2vfwulR6brUGiicXKxPm1GJ7dBEeP1II450Uv4bHGrcGOapZNgzJvn9aioea5IC5BPp/7qjKdE3xbbTBIVXMA==
   dependencies:
     adm-zip "~0.4.3"
     async "^2.1.2"
-    https-proxy-agent "~1.0.0"
+    https-proxy-agent "^2.2.1"
     lodash "^4.16.6"
     rimraf "^2.5.4"
 
 saucelabs@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.4.0.tgz#b934a9af9da2874b3f40aae1fcde50a4466f5f38"
-  integrity sha1-uTSpr52ih0s/QKrh/N5QpEZvXzg=
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.5.0.tgz#9405a73c360d449b232839919a86c396d379fd9d"
+  integrity sha512-jlX3FGdWvYf4Q3LFfFWS1QvPg3IGCGWxIc8QBFdPTbpTJnt/v17FHXYVAn7C8sHf1yUXo2c7yIM0isDryfYtHQ==
   dependencies:
-    https-proxy-agent "^1.0.0"
+    https-proxy-agent "^2.2.1"
 
 sax@^1.2.4:
   version "1.2.4"
@@ -8266,9 +7708,9 @@ sax@^1.2.4:
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
 schema-utils@^0.4.5:
-  version "0.4.5"
-  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.5.tgz#21836f0608aac17b78f9e3e24daff14a5ca13a3e"
-  integrity sha512-yYrjb9TX2k/J1Y5UNy3KYdZq10xhYcF8nMpAW6o3hy6Q8WSIEf9lJHG/ePnOBfziPM3fvQwfOwa13U/Fh8qTfA==
+  version "0.4.7"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.7.tgz#ba74f597d2be2ea880131746ee17d0a093c68187"
+  integrity sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==
   dependencies:
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
@@ -8278,12 +7720,12 @@ selenium-server@^2.53.1:
   resolved "https://registry.yarnpkg.com/selenium-server/-/selenium-server-2.53.1.tgz#d681528812f3c2e0531a6b7e613e23bb02cce8a6"
   integrity sha1-1oFSiBLzwuBTGmt+YT4juwLM6KY=
 
-"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.5.0:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
-  integrity sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==
+semver-compare@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/semver-compare/-/semver-compare-1.0.0.tgz#0dee216a1c941ab37e9efb1788f6afc5ff5537fc"
+  integrity sha1-De4hahyUGrN+nvsXiPavxf9VN/w=
 
-semver@^5.4.1:
+"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
@@ -8294,27 +7736,15 @@ semver@~5.0.1:
   integrity sha1-d0Zt5YnNXTyV8TiqeLxWmjy10no=
 
 serialize-javascript@^1.3.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.4.0.tgz#7c958514db6ac2443a8abc062dc9f7886a7f6005"
-  integrity sha1-fJWFFNtqwkQ6irwGLcn3iGp/YAU=
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.5.0.tgz#1aa336162c88a890ddad5384baebc93a655161fe"
+  integrity sha512-Ga8c8NjAAp46Br4+0oZ2WxJCwIzwP60Gq1YPgU+39PiTVxyed/iKE/zyZI6+UlVYH5Q4PaQdHhcegIFPZTUfoQ==
 
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
   integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
 
-set-getter@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/set-getter/-/set-getter-0.1.0.tgz#d769c182c9d5a51f409145f2fba82e5e86e80376"
-  integrity sha1-12nBgsnVpR9AkUXy+6guXoboA3Y=
-  dependencies:
-    to-object-path "^0.3.0"
-
-set-immediate-shim@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
-  integrity sha1-SysbJ+uAip+NzEgaWOXlb1mfP2E=
-
 set-value@^0.4.3:
   version "0.4.3"
   resolved "https://registry.yarnpkg.com/set-value/-/set-value-0.4.3.tgz#7db08f9d3d22dc7f78e53af3c3bf4666ecdfccf1"
@@ -8340,27 +7770,19 @@ setimmediate@^1.0.4:
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
   integrity sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=
 
-setprototypeof@1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.0.3.tgz#66567e37043eeb4f04d91bd658c0cbefb55b8e04"
-  integrity sha1-ZlZ+NwQ+608E2RvWWMDL77VbjgQ=
+setprototypeof@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.0.tgz#d0bd85536887b6fe7c0d818cb962d9d91c54e656"
+  integrity sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ==
 
-sha.js@^2.4.0, sha.js@^2.4.8, sha.js@~2.4.4:
-  version "2.4.10"
-  resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.10.tgz#b1fde5cd7d11a5626638a07c604ab909cfa31f9b"
-  integrity sha512-vnwmrFDlOExK4Nm16J2KMWHLrp14lBrjxMxBJpu++EnsuBmpiYaM/MEs46Vxxm/4FvdP5yTwuCTO9it5FSjrqA==
+sha.js@^2.4.0, sha.js@^2.4.8:
+  version "2.4.11"
+  resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
+  integrity sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==
   dependencies:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-shasum@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/shasum/-/shasum-1.0.2.tgz#e7012310d8f417f4deb5712150e5678b87ae565f"
-  integrity sha1-5wEjENj0F/TetXEhUOVni4euVl8=
-  dependencies:
-    json-stable-stringify "~0.0.0"
-    sha.js "~2.4.4"
-
 shebang-command@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
@@ -8373,16 +7795,6 @@ shebang-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
   integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
 
-shell-quote@^1.6.1:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/shell-quote/-/shell-quote-1.6.1.tgz#f4781949cce402697127430ea3b3c5476f481767"
-  integrity sha1-9HgZSczkAmlxJ0MOo7PFR29IF2c=
-  dependencies:
-    array-filter "~0.0.0"
-    array-map "~0.0.0"
-    array-reduce "~0.0.0"
-    jsonify "~0.0.0"
-
 shelljs@0.7.6:
   version "0.7.6"
   resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.6.tgz#379cccfb56b91c8601e4793356eb5382924de9ad"
@@ -8393,9 +7805,9 @@ shelljs@0.7.6:
     rechoir "^0.6.2"
 
 shelljs@^0.8.1:
-  version "0.8.1"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.1.tgz#729e038c413a2254c4078b95ed46e0397154a9f1"
-  integrity sha512-YA/iYtZpzFe5HyWVGrb02FjPxc4EMCfpoU/Phg9fQoyMC72u9598OUBrsU8IrtwAKG0tO8IYaqbaLIw+k3IRGA==
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.2.tgz#345b7df7763f4c2340d584abb532c5f752ca9e35"
+  integrity sha512-pRXeNrCA2Wd9itwhvLp5LZQvPJ0wU6bcjaTMywHHGX5XWhVN2nzSu7WV0q+oUY7mGK3mgSkDDzP3MgjqdyIgbQ==
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"
@@ -8435,6 +7847,11 @@ smart-buffer@^1.0.13, smart-buffer@^1.0.4:
   resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-1.1.15.tgz#7f114b5b65fab3e2a35aa775bb12f0d1c649bf16"
   integrity sha1-fxFLW2X6s+KjWqd1uxLw0cZJvxY=
 
+smart-buffer@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-4.0.1.tgz#07ea1ca8d4db24eb4cac86537d7d18995221ace3"
+  integrity sha512-RFqinRVJVcCAL9Uh1oVqE6FZkqsyLiVOYEZ20TqIOjuX7iFVJ+zsbs4RIghnw/pTs7mZvt8ZHhvm1ZUrR4fykg==
+
 smtp-connection@2.12.0:
   version "2.12.0"
   resolved "https://registry.yarnpkg.com/smtp-connection/-/smtp-connection-2.12.0.tgz#d76ef9127cb23c2259edb1e8349c2e8d5e2d74c1"
@@ -8460,9 +7877,9 @@ snapdragon-util@^3.0.1:
     kind-of "^3.2.0"
 
 snapdragon@^0.8.1:
-  version "0.8.1"
-  resolved "https://registry.yarnpkg.com/snapdragon/-/snapdragon-0.8.1.tgz#e12b5487faded3e3dea0ac91e9400bf75b401370"
-  integrity sha1-4StUh/re0+PeoKyR6UAL91tAE3A=
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/snapdragon/-/snapdragon-0.8.2.tgz#64922e7c565b0e14204ba1aa7d6964278d25182d"
+  integrity sha512-FtyOnWN/wCHTVXOMwvSv26d+ko5vWlIDD6zoUJ7LW8vh+ZBC8QdljveRP+crNrtBwioEUWy/4dMtbBjA4ioNlg==
   dependencies:
     base "^0.11.1"
     debug "^2.2.0"
@@ -8471,7 +7888,7 @@ snapdragon@^0.8.1:
     map-cache "^0.2.2"
     source-map "^0.5.6"
     source-map-resolve "^0.5.0"
-    use "^2.0.0"
+    use "^3.1.0"
 
 sntp@1.x.x:
   version "1.0.9"
@@ -8541,6 +7958,14 @@ socks-proxy-agent@2:
     extend "3"
     socks "~1.1.5"
 
+socks-proxy-agent@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/socks-proxy-agent/-/socks-proxy-agent-4.0.1.tgz#5936bf8b707a993079c6f37db2091821bffa6473"
+  integrity sha512-Kezx6/VBguXOsEe5oU3lXYyKMi4+gva72TwJ7pQY5JfqUx2nMk7NXA6z/mpNqIlfQjWYVfeuNvQjexiTaTn6Nw==
+  dependencies:
+    agent-base "~4.2.0"
+    socks "~2.2.0"
+
 socks@1.1.9:
   version "1.1.9"
   resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.9.tgz#628d7e4d04912435445ac0b6e459376cb3e6d691"
@@ -8557,39 +7982,30 @@ socks@~1.1.5:
     ip "^1.1.4"
     smart-buffer "^1.0.13"
 
-source-list-map@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.0.tgz#aaa47403f7b245a92fbc97ea08f250d6087ed085"
-  integrity sha512-I2UmuJSRr/T8jisiROLU3A3ltr+swpniSmNPI4Ml3ZCX6tVnDsuZzK7F2hl5jTqbZBWCEKlj5HRQiPExXLgE8A==
-
-source-map-resolve@^0.3.0:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.3.1.tgz#610f6122a445b8dd51535a2a71b783dfc1248761"
-  integrity sha1-YQ9hIqRFuN1RU1oqcbeD38Ekh2E=
+socks@~2.2.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/socks/-/socks-2.2.1.tgz#68ad678b3642fbc5d99c64c165bc561eab0215f9"
+  integrity sha512-0GabKw7n9mI46vcNrVfs0o6XzWzjVa3h6GaSo2UPxtWAROXUWavfJWh1M4PR5tnE0dcnQXZIDFP4yrAysLze/w==
   dependencies:
-    atob "~1.1.0"
-    resolve-url "~0.2.1"
-    source-map-url "~0.3.0"
-    urix "~0.1.0"
+    ip "^1.1.5"
+    smart-buffer "^4.0.1"
 
-source-map-resolve@^0.5.0:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.1.tgz#7ad0f593f2281598e854df80f19aae4b92d7a11a"
-  integrity sha512-0KW2wvzfxm8NCTb30z0LMNyPqWCdDGE2viwzUaucqJdkTRXtZiSY3I+2A6nVAjmdOy0I4gU8DwnVVGsk9jvP2A==
+source-list-map@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
+  integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
+
+source-map-resolve@^0.5.0, source-map-resolve@^0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"
+  integrity sha512-MjqsvNwyz1s0k81Goz/9vRBe9SZdB09Bdw+/zYyO+3CuPk6fouTaxscHkgtE8jKvf01kVfl8riHzERQ/kefaSA==
   dependencies:
-    atob "^2.0.0"
+    atob "^2.1.1"
     decode-uri-component "^0.2.0"
     resolve-url "^0.2.1"
     source-map-url "^0.4.0"
     urix "^0.1.0"
 
-source-map-support@^0.5.0:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.3.tgz#2b3d5fff298cfa4d1afd7d4352d569e9a0158e76"
-  integrity sha512-eKkTgWYeBOQqFGXRfKabMFdnWepo51vWqEdoeikaEPFiJC7MCU5j2h4+6Q8npkZTeLGbSyecZvRxiSoWl3rh+w==
-  dependencies:
-    source-map "^0.6.0"
-
 source-map-support@^0.5.9:
   version "0.5.9"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.9.tgz#41bc953b2534267ea2d605bccfa7bfa3111ced5f"
@@ -8603,26 +8019,7 @@ source-map-url@^0.4.0:
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
   integrity sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=
 
-source-map-url@~0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.3.0.tgz#7ecaf13b57bcd09da8a40c5d269db33799d4aaf9"
-  integrity sha1-fsrxO1e80J2opAxdJp2zN5nUqvk=
-
-source-map@^0.1.38:
-  version "0.1.43"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.43.tgz#c24bc146ca517c1471f5dacbe2571b2b7f9e3346"
-  integrity sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=
-  dependencies:
-    amdefine ">=0.0.4"
-
-source-map@^0.4.4:
-  version "0.4.4"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
-  integrity sha1-66T12pwNyZneaAMti092FzZSA2s=
-  dependencies:
-    amdefine ">=0.0.4"
-
-source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1, source-map@~0.5.3:
+source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
   integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
@@ -8639,6 +8036,11 @@ source-map@~0.2.0:
   dependencies:
     amdefine ">=0.0.4"
 
+sourcemap-codec@^1.4.1:
+  version "1.4.3"
+  resolved "https://registry.yarnpkg.com/sourcemap-codec/-/sourcemap-codec-1.4.3.tgz#0ba615b73ec35112f63c2f2d9e7c3f87282b0e33"
+  integrity sha512-vFrY/x/NdsD7Yc8mpTJXuao9S8lq08Z/kOITHz6b7YbfI9xL8Spe5EvSQUHOI7SbpY8bRPr0U3kKSsPuqEGSfA==
+
 spawn-sync@^1.0.15:
   version "1.0.15"
   resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
@@ -8648,17 +8050,17 @@ spawn-sync@^1.0.15:
     os-shim "^0.1.2"
 
 spdx-correct@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.0.0.tgz#05a5b4d7153a195bc92c3c425b69f3b2a9524c82"
-  integrity sha512-N19o9z5cEyc8yQQPukRCZ9EUmb4HUpnrmaL/fxS2pBo2jbfcFRVuFZ/oFC+vZz0MNNk0h80iMn5/S6qGZOL5+g==
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.0.2.tgz#19bb409e91b47b1ad54159243f7312a858db3c2e"
+  integrity sha512-q9hedtzyXHr5S0A1vEPoK/7l8NpfkFYTq6iCY+Pno2ZbdZR6WexZFtqeVGkGxW3TEJMN914Z55EnAGMmenlIQQ==
   dependencies:
     spdx-expression-parse "^3.0.0"
     spdx-license-ids "^3.0.0"
 
 spdx-exceptions@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/spdx-exceptions/-/spdx-exceptions-2.1.0.tgz#2c7ae61056c714a5b9b9b2b2af7d311ef5c78fe9"
-  integrity sha512-4K1NsmrlCU1JJgUrtgEeTVyfx8VaYea9J9LvARxhbHtVtohPs/gFGG5yy49beySjlIMhhXZ4QqujIZEfS4l6Cg==
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz#2ea450aee74f2a89bfb94519c07fcd6f41322977"
+  integrity sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==
 
 spdx-expression-parse@^3.0.0:
   version "3.0.0"
@@ -8669,9 +8071,9 @@ spdx-expression-parse@^3.0.0:
     spdx-license-ids "^3.0.0"
 
 spdx-license-ids@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.0.tgz#7a7cd28470cc6d3a1cfe6d66886f6bc430d3ac87"
-  integrity sha512-2+EPwgbnmOIl8HjGBXXMd9NAu02vLjOO1nWw4kmeRDFyHn+M/ETfHxQUK0oXg8ctgVnl9t3rosNVsZ1jG61nDA==
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.1.tgz#e2a303236cac54b04031fa7a5a79c7e701df852f"
+  integrity sha512-TfOfPcYGBB5sDuPn3deByxPhmfegAhpDYKSOXZQN81Oyrrif8ZCodOLzK3AesELnCx03kikhyDwh0pfvvQvF8w==
 
 split-string@^3.0.1, split-string@^3.0.2:
   version "3.1.0"
@@ -8694,40 +8096,30 @@ split@^1.0.0:
   dependencies:
     through "2"
 
-sprintf-js@^1.0.3:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.1.tgz#36be78320afe5801f6cea3ee78b6e5aab940ea0c"
-  integrity sha1-Nr54Mgr+WAH2zqPueLblqrlA6gw=
-
 sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
 sshpk@^1.7.0:
-  version "1.13.1"
-  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.13.1.tgz#512df6da6287144316dc4c18fe1cf1d940739be3"
-  integrity sha1-US322mKHFEMW3EwY/hzx2UBzm+M=
+  version "1.15.1"
+  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.15.1.tgz#b79a089a732e346c6e0714830f36285cd38191a2"
+  integrity sha512-mSdgNUaidk+dRU5MhYtN9zebdzF2iG0cNPWy8HG+W8y+fT1JnSkh0fzzpjOa0L7P8i1Rscz38t0h4gPcKz43xA==
   dependencies:
     asn1 "~0.2.3"
     assert-plus "^1.0.0"
-    dashdash "^1.12.0"
-    getpass "^0.1.1"
-  optionalDependencies:
     bcrypt-pbkdf "^1.0.0"
+    dashdash "^1.12.0"
     ecc-jsbn "~0.1.1"
+    getpass "^0.1.1"
     jsbn "~0.1.0"
+    safer-buffer "^2.0.2"
     tweetnacl "~0.14.0"
 
-stack-utils@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
-  integrity sha1-1PM6tU6OOHeLDKXP07OvsS22hiA=
-
-staged-git-files@1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.0.tgz#1a9bb131c1885601023c7aaddd3d54c22142c526"
-  integrity sha1-GpuxMcGIVgECPHqt3T1UwiFCxSY=
+staged-git-files@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.1.tgz#37c2218ef0d6d26178b1310719309a16a59f8f7b"
+  integrity sha512-H89UNKr1rQJvI1c/PIR3kiAMBV23yvR7LItZiV74HWZwzt7f3YHuujJ9nJZlt58WlFox7XQsOahexwk7nTe69A==
 
 static-extend@^0.1.1:
   version "0.1.2"
@@ -8737,22 +8129,17 @@ static-extend@^0.1.1:
     define-property "^0.2.5"
     object-copy "^0.1.0"
 
-"statuses@>= 1.3.1 < 2":
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
-  integrity sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew==
+"statuses@>= 1.4.0 < 2":
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
+  integrity sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=
 
 statuses@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.3.1.tgz#faf51b9eb74aaef3b3acf4ad5f61abf24cb7b93e"
   integrity sha1-+vUbnrdKrvOzrPStX2Gr8ky3uT4=
 
-stealthy-require@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
-  integrity sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks=
-
-stream-browserify@^2.0.0, stream-browserify@^2.0.1:
+stream-browserify@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
   integrity sha1-ZiZu5fm9uZQKTkUUyvtDu3Hlyds=
@@ -8760,41 +8147,18 @@ stream-browserify@^2.0.0, stream-browserify@^2.0.1:
     inherits "~2.0.1"
     readable-stream "^2.0.2"
 
-stream-combiner2@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/stream-combiner2/-/stream-combiner2-1.1.1.tgz#fb4d8a1420ea362764e21ad4780397bebcb41cbe"
-  integrity sha1-+02KFCDqNidk4hrUeAOXvry0HL4=
-  dependencies:
-    duplexer2 "~0.1.0"
-    readable-stream "^2.0.2"
-
-stream-http@^2.0.0, stream-http@^2.7.2:
-  version "2.8.0"
-  resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.8.0.tgz#fd86546dac9b1c91aff8fc5d287b98fafb41bc10"
-  integrity sha512-sZOFxI/5xw058XIRHl4dU3dZ+TTOIGJR78Dvo0oEAejIt4ou27k+3ne1zYmCV+v7UucbxIFQuOgnkTVHh8YPnw==
+stream-http@^2.7.2:
+  version "2.8.3"
+  resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.8.3.tgz#b2d242469288a5a27ec4fe8933acf623de6514fc"
+  integrity sha512-+TSkfINHDo4J+ZobQLWiMouQYB+UVYFttRA94FpEzzJ7ZdqcL4uUUQ7WkdkI4DSozGmgBUE/a47L+38PenXhUw==
   dependencies:
     builtin-status-codes "^3.0.0"
     inherits "^2.0.1"
-    readable-stream "^2.3.3"
+    readable-stream "^2.3.6"
     to-arraybuffer "^1.0.0"
     xtend "^4.0.0"
 
-stream-splicer@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/stream-splicer/-/stream-splicer-2.0.0.tgz#1b63be438a133e4b671cc1935197600175910d83"
-  integrity sha1-G2O+Q4oTPktnHMGTUZdgAXWRDYM=
-  dependencies:
-    inherits "^2.0.1"
-    readable-stream "^2.0.2"
-
-stream-to-observable@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/stream-to-observable/-/stream-to-observable-0.2.0.tgz#59d6ea393d87c2c0ddac10aa0d561bc6ba6f0e10"
-  integrity sha1-WdbqOT2HwsDdrBCqDVYbxrpvDhA=
-  dependencies:
-    any-observable "^0.2.0"
-
-streamroller@^0.7.0:
+streamroller@0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-0.7.0.tgz#a1d1b7cf83d39afb0d63049a5acbf93493bdf64b"
   integrity sha512-WREzfy0r0zUqp3lGO096wRuUp7ho1X6uo/7DJfTlEi0Iv/4gT7YHqXDjKC2ioVGBZtE8QzsQD9nx1nIuoZ57jQ==
@@ -8804,7 +8168,12 @@ streamroller@^0.7.0:
     mkdirp "^0.5.1"
     readable-stream "^2.3.0"
 
-string-width@^1.0.1, string-width@^1.0.2:
+string-argv@^0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/string-argv/-/string-argv-0.0.2.tgz#dac30408690c21f3c3630a3ff3a05877bdcbd736"
+  integrity sha1-2sMECGkMIfPDYwo/86BYd73L1zY=
+
+string-width@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
   integrity sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=
@@ -8813,7 +8182,7 @@ string-width@^1.0.1, string-width@^1.0.2:
     is-fullwidth-code-point "^1.0.0"
     strip-ansi "^3.0.0"
 
-string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
+"string-width@^1.0.2 || 2", string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
   integrity sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==
@@ -8821,10 +8190,10 @@ string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
-string_decoder@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.0.tgz#384f322ee8a848e500effde99901bba849c5d403"
-  integrity sha512-8zQpRF6juocE69ae7CSPmYEGJe4VCXwP6S6dxUWI7i53Gwv54/ec41fiUA+X7BPGGv7fRSQJjBQVa0gomGaOgg==
+string_decoder@^1.0.0, string_decoder@^1.1.1, string_decoder@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  integrity sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==
   dependencies:
     safe-buffer "~5.1.0"
 
@@ -8833,26 +8202,19 @@ string_decoder@~0.10.x:
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
   integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
 
-string_decoder@~1.0.0, string_decoder@~1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.3.tgz#0fc67d7c141825de94282dd536bec6b9bce860ab"
-  integrity sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==
-  dependencies:
-    safe-buffer "~5.1.0"
-
 stringify-object@^3.2.2:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/stringify-object/-/stringify-object-3.2.2.tgz#9853052e5a88fb605a44cd27445aa257ad7ffbcd"
-  integrity sha512-O696NF21oLiDy8PhpWu8AEqoZHw++QW6mUv0UvKZe8gWSdSvMXkiLufK7OmnP27Dro4GU5kb9U7JIO0mBuCRQg==
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/stringify-object/-/stringify-object-3.3.0.tgz#703065aefca19300d3ce88af4f5b3956d7556629"
+  integrity sha512-rHqiFh1elqCQ9WPLIC8I0Q/g/wj5J1eMkyoiD6eoQApWHP0FtlK7rqnhmabL5VUY9JQCcqwwvlOaSuutekgyrw==
   dependencies:
-    get-own-enumerable-property-symbols "^2.0.1"
+    get-own-enumerable-property-symbols "^3.0.0"
     is-obj "^1.0.1"
     is-regexp "^1.0.0"
 
 stringstream@~0.0.4, stringstream@~0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
-  integrity sha1-TkhM1N5aC7vuGORjB3EKioFiGHg=
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
+  integrity sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA==
 
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
@@ -8902,13 +8264,6 @@ strip-json-comments@2.0.1, strip-json-comments@~2.0.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
 
-subarg@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"
-  integrity sha1-9izxdYHplrSPyWVpn1TAauJouNI=
-  dependencies:
-    minimist "^1.1.0"
-
 supports-color@3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.1.2.tgz#72a262894d9d408b956ca05ff37b2ed8a6e2a2d5"
@@ -8936,33 +8291,16 @@ supports-color@^4.2.1:
     has-flag "^2.0.0"
 
 supports-color@^5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.3.0.tgz#5b24ac15db80fa927cf5227a4a33fd3c4c7676c0"
-  integrity sha512-0aP01LLIskjKs3lq52EC0aGBAJhLq7B2Rd8HC/DR/PtNNpcLilNmHC12O+hu0usQpo7wtHNRqtrhBwtDb0+dNg==
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
   dependencies:
     has-flag "^3.0.0"
 
-symbol-observable@1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
-  integrity sha1-g0D8RwLDEi310iKI+IKD9RPT/dQ=
-
-symbol-observable@^0.2.2:
-  version "0.2.4"
-  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-0.2.4.tgz#95a83db26186d6af7e7a18dbd9760a2f86d08f40"
-  integrity sha1-lag9smGG1q9+ehjb2XYKL4bQj0A=
-
-symbol-tree@^3.2.2:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
-  integrity sha1-rifbOPZgp64uHDt9G8KQgZuFGeY=
-
-syntax-error@^1.1.1:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/syntax-error/-/syntax-error-1.4.0.tgz#2d9d4ff5c064acb711594a3e3b95054ad51d907c"
-  integrity sha512-YPPlu67mdnHGTup2A8ff7BC2Pjq0e0Yp/IyTFN03zWO0RcK07uLcbi7C2KpGR2FvWbaB0+bfE27a+sBKebSo7w==
-  dependencies:
-    acorn-node "^1.2.0"
+symbol-observable@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
+  integrity sha512-e900nM8RRtGhlV36KGEU9k65K3mPb1WV70OdjfxlG2EAuM1noi/E/BaW/uMhL7bPEssK8QV57vN3esixjUvcXQ==
 
 table@4.0.2:
   version "4.0.2"
@@ -8981,38 +8319,31 @@ tapable@^0.2.7:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
   integrity sha1-mTcqXJmb8t8WCvwNdL7U9HlIzSI=
 
-tar-pack@^3.4.0:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
-  integrity sha512-PPRybI9+jM5tjtCbN2cxmmRU7YmqT3Zv/UDy48tAh2XRkLa9bAORtSWLkVc13+GJF+cdTh1yEnHEk3cpTaL5Kg==
-  dependencies:
-    debug "^2.2.0"
-    fstream "^1.0.10"
-    fstream-ignore "^1.0.5"
-    once "^1.3.3"
-    readable-stream "^2.1.4"
-    rimraf "^2.5.1"
-    tar "^2.2.1"
-    uid-number "^0.0.6"
-
 tar-stream@^1.5.0:
-  version "1.5.5"
-  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.5.5.tgz#5cad84779f45c83b1f2508d96b09d88c7218af55"
-  integrity sha512-mQdgLPc/Vjfr3VWqWbfxW8yQNiJCbAZ+Gf6GDu1Cy0bdb33ofyiNGBtAY96jHFhDuivCwgW1H9DgTON+INiXgg==
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.2.tgz#8ea55dab37972253d9a9af90fdcd559ae435c555"
+  integrity sha512-rzS0heiNf8Xn7/mpdSVVSMAWAoy9bfb1WOTYC78Z0UQKeKa/CWS8FOq0lKGNa8DWKAn9gxjCvMLYc5PGXYlK2A==
   dependencies:
     bl "^1.0.0"
+    buffer-alloc "^1.2.0"
     end-of-stream "^1.0.0"
-    readable-stream "^2.0.0"
+    fs-constants "^1.0.0"
+    readable-stream "^2.3.0"
+    to-buffer "^1.1.1"
     xtend "^4.0.0"
 
-tar@^2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
-  integrity sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=
+tar@^4:
+  version "4.4.6"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.6.tgz#63110f09c00b4e60ac8bcfe1bf3c8660235fbc9b"
+  integrity sha512-tMkTnh9EdzxyfW+6GK6fCahagXsnYk6kE6S9Gr9pjVdys769+laCTbodXDhPAjzVtEBazRgP0gYqOjnk9dQzLg==
   dependencies:
-    block-stream "*"
-    fstream "^1.0.2"
-    inherits "2"
+    chownr "^1.0.1"
+    fs-minipass "^1.2.5"
+    minipass "^2.3.3"
+    minizlib "^1.1.0"
+    mkdirp "^0.5.0"
+    safe-buffer "^5.1.2"
+    yallist "^3.0.2"
 
 test-exclude@^5.0.0:
   version "5.0.0"
@@ -9025,9 +8356,9 @@ test-exclude@^5.0.0:
     require-main-filename "^1.0.1"
 
 text-extensions@^1.0.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.7.0.tgz#faaaba2625ed746d568a23e4d0aacd9bf08a8b39"
-  integrity sha512-AKXZeDq230UaSzaO5s3qQUZOaC7iKbzq0jOFL614R7d9R593HLqAOL0cYoqLdkNrjBSOdmoQI06yigq1TSBXAg==
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.9.0.tgz#1853e45fee39c945ce6f6c36b2d659b5aabc2a26"
+  integrity sha512-wiBrwC1EhBelW12Zy26JeOUkQ5mRu+5o8rpsJk5+2t+Y5vE7e842qtZDQ2g1NpX/29HdyFeJ4nSIhI47ENSxlQ==
 
 text-table@~0.2.0:
   version "0.2.0"
@@ -9052,27 +8383,20 @@ through@2, "through@>=2.2.7 <3", through@^2.3.6:
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
   integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
 
-thunkify@~2.1.1:
+thunkify@^2.1.2, thunkify@~2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/thunkify/-/thunkify-2.1.2.tgz#faa0e9d230c51acc95ca13a361ac05ca7e04553d"
   integrity sha1-+qDp0jDFGsyVyhOjYawFyn4EVT0=
 
 time-stamp@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.0.0.tgz#95c6a44530e15ba8d6f4a3ecb8c3a3fac46da357"
-  integrity sha1-lcakRTDhW6jW9KPsuMOj+sRto1c=
-
-timers-browserify@^1.0.1:
-  version "1.4.2"
-  resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-1.4.2.tgz#c9c58b575be8407375cb5e2462dacee74359f41d"
-  integrity sha1-ycWLV1voQHN1y14kYtrO50NZ9B0=
-  dependencies:
-    process "~0.11.0"
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.1.0.tgz#6c5c0b2bc835a244616abcfddf81ce13a1975c9f"
+  integrity sha512-lJbq6KsFhZJtN3fPUVje1tq/hHsJOKUUcUj/MGCiQR6qWBDcyi5kxL9J7/RnaEChCn0+L/DUN2WvemDrkk4i3Q==
 
 timers-browserify@^2.0.4:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-2.0.6.tgz#241e76927d9ca05f4d959819022f5b3664b64bae"
-  integrity sha512-HQ3nbYRAowdVd0ckGFvmJPPCOH/CHleFN/Y0YQCX1DVaB7t+KFvisuyN09fuP8Jtp1CpfSh8O8bMkHbdbPe6Pw==
+  version "2.0.10"
+  resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-2.0.10.tgz#1d28e3d2aadf1d5a5996c4e9f95601cd053480ae"
+  integrity sha512-YvC1SV1XdOUaL6gx5CoGroT3Gu49pK9+TZ38ErPldOWW4j49GI1HKs9DV+KGq/w6y+LZ72W1c8cKz2vzY+qpzg==
   dependencies:
     setimmediate "^1.0.4"
 
@@ -9105,6 +8429,11 @@ to-arraybuffer@^1.0.0:
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
   integrity sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M=
 
+to-buffer@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/to-buffer/-/to-buffer-1.1.1.tgz#493bd48f62d7c43fcded313a03dcadb2e1213a80"
+  integrity sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg==
+
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
@@ -9130,7 +8459,7 @@ to-regex-range@^2.1.0:
     is-number "^3.0.0"
     repeat-string "^1.6.1"
 
-to-regex@^3.0.1:
+to-regex@^3.0.1, to-regex@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/to-regex/-/to-regex-3.0.2.tgz#13cfdd9b336552f30b51f33a8ae1b42a7a7599ce"
   integrity sha512-FWtleNAtZ/Ki2qtqej2CXTOayOH9bHDQF+Q48VpWyDXjbYxA4Yz8iDB31zXOBUlOHHKidDbqGVrTUvQMPmBGBw==
@@ -9140,7 +8469,7 @@ to-regex@^3.0.1:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
-tough-cookie@>=2.3.3, tough-cookie@^2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
+tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
   integrity sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==
@@ -9155,13 +8484,6 @@ tough-cookie@~2.4.3:
     psl "^1.1.24"
     punycode "^1.4.1"
 
-tr46@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/tr46/-/tr46-1.0.1.tgz#a8b13fd6bfd2489519674ccde55ba3693b706d09"
-  integrity sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=
-  dependencies:
-    punycode "^2.1.0"
-
 trim-newlines@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
@@ -9182,21 +8504,21 @@ trim-right@^1.0.1:
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
   integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
 
+tslib@^1.9.0:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
+  integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==
+
 tsscmp@~1.0.0:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.5.tgz#7dc4a33af71581ab4337da91d85ca5427ebd9a97"
-  integrity sha1-fcSjOvcVgatDN9qR2FylQn69mpc=
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.6.tgz#85b99583ac3589ec4bfef825b5000aa911d605eb"
+  integrity sha512-LxhtAkPDTkVCMQjt2h6eBVY28KCjikZqZfMcC15YBeNjkgUpdCfBu5HoiOTDu86v6smE8yOjyEktJ8hlbANHQA==
 
 tty-browserify@0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
   integrity sha1-oVe6QC2iTpv5V/mqadUk7tQpAaY=
 
-tty-browserify@~0.0.0:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.1.tgz#3f05251ee17904dfd0677546670db9651682b811"
-  integrity sha512-C3TaO7K81YvjCgQH9Q1S3R3P3BtN3RIM8n+OvX4il1K1zgE8ZhI0op7kClgkxtutIE8hQrcrHBXvIheqKUUCxw==
-
 tunnel-agent@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
@@ -9226,7 +8548,7 @@ type-detect@0.1.1:
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-0.1.1.tgz#0ba5ec2a885640e470ea4e8505971900dac58822"
   integrity sha1-C6XsKohWQORw6k6FBZcZANrFiCI=
 
-type-is@~1.6.15:
+type-is@~1.6.16:
   version "1.6.16"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.16.tgz#f89ce341541c672b25ee7ae3c73dee3b2be50194"
   integrity sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==
@@ -9234,17 +8556,17 @@ type-is@~1.6.15:
     media-typer "0.3.0"
     mime-types "~2.1.18"
 
-typedarray@^0.0.6, typedarray@~0.0.5:
+typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
 typescript@^2.7.1:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.7.2.tgz#2d615a1ef4aee4f574425cdff7026edf81919836"
-  integrity sha512-p5TCYZDAO0m4G344hD+wx/LATebLWZNkkh2asWUFqSsD2OrDNhbAHuSjobrmsUmdzjJjEeZVU9g1h3O6vpstnw==
+  version "2.9.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.2.tgz#1cbf61d05d6b96269244eb6a3bce4bd914e0f00c"
+  integrity sha512-Gr4p6nFNaoufRIY4NMdpQRNmgxVIGMs4Fcu/ujdYk3nAZqk7supzBE9idmvfZIlH/Cuj//dvi+019qEue9lV0w==
 
-uglify-js@^2.6, uglify-js@^2.8.29:
+uglify-js@^2.8.29:
   version "2.8.29"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
   integrity sha1-KcVzMUgFe7Th913zW3qcty5qWd0=
@@ -9254,12 +8576,12 @@ uglify-js@^2.6, uglify-js@^2.8.29:
   optionalDependencies:
     uglify-to-browserify "~1.0.0"
 
-uglify-js@^3.0.15:
-  version "3.3.13"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.3.13.tgz#8a1a89eeb16e2d6a66b0db2b04cb871af3c669cf"
-  integrity sha512-7rdn/bDOG1ElSTPdh7AI5TCjLv63ZD4k8BBadN3ssIkhlaQL2c0yRxmXCyOYhZK0wZTgGgUSnYQ4CGu+Jos5cA==
+uglify-js@^3.0.15, uglify-js@^3.1.4:
+  version "3.4.9"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.9.tgz#af02f180c1207d76432e473ed24a28f4a782bae3"
+  integrity sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==
   dependencies:
-    commander "~2.14.1"
+    commander "~2.17.1"
     source-map "~0.6.1"
 
 uglify-to-browserify@~1.0.0:
@@ -9276,29 +8598,11 @@ uglifyjs-webpack-plugin@^0.4.6:
     uglify-js "^2.8.29"
     webpack-sources "^1.0.1"
 
-uid-number@^0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
-  integrity sha1-DqEOgDXo61uOREnwbaHHMGY7qoE=
-
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
   integrity sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==
 
-umd@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/umd/-/umd-3.0.1.tgz#8ae556e11011f63c2596708a8837259f01b3d60e"
-  integrity sha1-iuVW4RAR9jwllnCKiDclnwGz1g4=
-
-underscore.string@3.3.4:
-  version "3.3.4"
-  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.4.tgz#2c2a3f9f83e64762fdc45e6ceac65142864213db"
-  integrity sha1-LCo/n4PmR2L9xF5s6sZRQoZCE9s=
-  dependencies:
-    sprintf-js "^1.0.3"
-    util-deprecate "^1.0.2"
-
 underscore@~1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.7.0.tgz#6bbaf0877500d36be34ecaa584e0db9fef035209"
@@ -9357,22 +8661,29 @@ unset-value@^1.0.0:
     has-value "^0.3.1"
     isobject "^3.0.0"
 
-upath@^1.0.0:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/upath/-/upath-1.0.4.tgz#ee2321ba0a786c50973db043a50b7bcba822361d"
-  integrity sha512-d4SJySNBXDaQp+DPrziv3xGS6w3d2Xt69FijJr86zMPBy23JEloMCEOUBBzuN7xCtjLCnmB9tI/z7SBCahHBOw==
+upath@^1.0.5:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/upath/-/upath-1.1.0.tgz#35256597e46a581db4793d0ce47fa9aebfc9fabd"
+  integrity sha512-bzpH/oBhoS/QI/YtbkqCg6VEiPYjSZtrHQM6/QnJS6OL9pKUFLqb3aFh4Scvwm45+7iAgiMkLhSbaZxUqmrprw==
+
+uri-js@^4.2.2:
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/uri-js/-/uri-js-4.2.2.tgz#94c540e1ff772956e2299507c010aea6c8838eb0"
+  integrity sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==
+  dependencies:
+    punycode "^2.1.0"
 
-urix@^0.1.0, urix@~0.1.0:
+urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
   integrity sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=
 
-url-join@^2.0.2:
+url-join@^2.0.5:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
   integrity sha1-WvIvGMBSoACkjXuCxenC4v7tpyg=
 
-url@^0.11.0, url@~0.11.0:
+url@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
   integrity sha1-ODjpfPxgUh63PFJajlW/3Z4uKPE=
@@ -9385,24 +8696,20 @@ urlgrey@^0.4.4:
   resolved "https://registry.yarnpkg.com/urlgrey/-/urlgrey-0.4.4.tgz#892fe95960805e85519f1cd4389f2cb4cbb7652f"
   integrity sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8=
 
-use@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/use/-/use-2.0.2.tgz#ae28a0d72f93bf22422a18a2e379993112dec8e8"
-  integrity sha1-riig1y+TvyJCKhii43mZMRLeyOg=
-  dependencies:
-    define-property "^0.2.5"
-    isobject "^3.0.0"
-    lazy-cache "^2.0.2"
+use@^3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/use/-/use-3.1.1.tgz#d50c8cac79a19fbc20f2911f56eb973f4e10070f"
+  integrity sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==
 
-useragent@^2.1.12:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/useragent/-/useragent-2.3.0.tgz#217f943ad540cb2128658ab23fc960f6a88c9972"
-  integrity sha512-4AoH4pxuSvHCjqLO04sU6U/uE65BYza8l/KKBS0b0hnUPWi+cQ2BpeTEwejCSx9SPV5/U03nniDTrWx5NrmKdw==
+useragent@2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/useragent/-/useragent-2.2.1.tgz#cf593ef4f2d175875e8bb658ea92e18a4fd06d8e"
+  integrity sha1-z1k+9PLRdYdei7ZY6pLhik/QbY4=
   dependencies:
-    lru-cache "4.1.x"
+    lru-cache "2.2.x"
     tmp "0.0.x"
 
-util-deprecate@^1.0.2, util-deprecate@~1.0.1:
+util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
   integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
@@ -9415,24 +8722,26 @@ util.promisify@^1.0.0:
     define-properties "^1.1.2"
     object.getownpropertydescriptors "^2.0.3"
 
-util@0.10.3, util@^0.10.3, util@~0.10.1:
+util@0.10.3:
   version "0.10.3"
   resolved "https://registry.yarnpkg.com/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"
   integrity sha1-evsa/lCAUkZInj23/g7TeTNqwPk=
   dependencies:
     inherits "2.0.1"
 
+util@^0.10.3:
+  version "0.10.4"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.10.4.tgz#3aa0125bfe668a4672de58857d3ace27ecb76901"
+  integrity sha512-0Pm9hTQ3se5ll1XihRic3FDIku70C+iHUdT/W926rSgHV5QgXsYbKZN8MSC3tJtSkhuROzvsQjAaFENRXr+19A==
+  dependencies:
+    inherits "2.0.3"
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
   integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
-uuid@^3.0.0, uuid@^3.1.0:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
-  integrity sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA==
-
-uuid@^3.3.2:
+uuid@^3.1.0, uuid@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
   integrity sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==
@@ -9443,9 +8752,9 @@ uws@~9.14.0:
   integrity sha512-HNMztPP5A1sKuVFmdZ6BPVpBQd5bUjNC8EFMFiICK+oho/OQsAJy5hnIx4btMHiOk8j04f/DbIlqnEZ9d72dqg==
 
 validate-npm-package-license@^3.0.1:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz#81643bcbef1bdfecd4623793dc4648948ba98338"
-  integrity sha512-63ZOUnL4SIXj4L0NixR3L1lcjO38crAbgrTpl28t8jjrfuiOBL5Iygm+60qPs/KsZGzPNg6Smnc/oY16QTjF0g==
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz#fc91f6b9c7ba15c857f4cb2c5defeec39d4f410a"
+  integrity sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==
   dependencies:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
@@ -9474,7 +8783,7 @@ vlq@^1.0.0:
   resolved "https://registry.yarnpkg.com/vlq/-/vlq-1.0.0.tgz#8101be90843422954c2b13eb27f2f3122bdcc806"
   integrity sha512-o3WmXySo+oI5thgqr7Qy8uBkT/v9Zr+sRyrh1lr8aWPUkgDWdWt4Nae2WKBrLsocgE8BuWWD0jLc+VW8LeU+2g==
 
-vm-browserify@0.0.4, vm-browserify@~0.0.1:
+vm-browserify@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
   integrity sha1-XX6kW7755Kb/ZflUOOCofDV9WnM=
@@ -9486,46 +8795,28 @@ void-elements@^2.0.0:
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
   integrity sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=
 
-w3c-hr-time@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz#82ac2bff63d950ea9e3189a58a65625fedf19045"
-  integrity sha1-gqwr/2PZUOqeMYmlimViX+3xkEU=
-  dependencies:
-    browser-process-hrtime "^0.1.2"
-
-walkdir@^0.0.11:
-  version "0.0.11"
-  resolved "https://registry.yarnpkg.com/walkdir/-/walkdir-0.0.11.tgz#a16d025eb931bd03b52f308caed0f40fcebe9532"
-  integrity sha1-oW0CXrkxvQO1LzCMrtD0D86+lTI=
-
 watchpack@^1.4.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.5.0.tgz#231e783af830a22f8966f65c4c4bacc814072eed"
-  integrity sha512-RSlipNQB1u48cq0wH/BNfCu1tD/cJ8ydFIkNYhp9o+3d+8unClkIovpW5qpFPgmL9OE48wfAnlZydXByWP82AA==
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.6.0.tgz#4bc12c2ebe8aa277a71f1d3f14d685c7b446cd00"
+  integrity sha512-i6dHe3EyLjMmDlU1/bGQpEw25XSjkJULPuAVKCbNRefQVq48yXKUpwg538F7AZTf9kyr57zj++pQFltUa5H7yA==
   dependencies:
     chokidar "^2.0.2"
     graceful-fs "^4.1.2"
     neo-async "^2.5.0"
 
 wd@^1.4.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/wd/-/wd-1.6.0.tgz#29f6de1531302a0c553478eeff16ae1e1639b472"
-  integrity sha512-q+oGQp7e/Xa5Yw2aaCJ2k56yL3pqpTkQOSJTgs9SAbUDIOASDsyhuxuZQ+QbOBnXoWrKosrxwZqfM0VUsqlDyg==
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/wd/-/wd-1.11.0.tgz#b610deea7f79f5a520a573c09e047e42d31433f9"
+  integrity sha512-h2EBfJvmsWocIjOOg5BsHh9IJKrqZDG4Az4jEZhFugEH7sOPcX6feZQ30aFuktqDI0jquarZJmNpA6V0A0Q7Mg==
   dependencies:
-    archiver "1.3.0"
+    archiver "2.1.1"
     async "2.0.1"
-    lodash "4.16.2"
+    lodash "4.17.10"
     mkdirp "^0.5.1"
     q "1.4.1"
-    request "2.79.0"
-    underscore.string "3.3.4"
+    request "2.85.0"
     vargs "0.1.0"
 
-webidl-conversions@^4.0.1, webidl-conversions@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
-  integrity sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==
-
 webpack-dev-middleware@^1.12.0:
   version "1.12.2"
   resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz#f8fc1120ce3b4fc5680ceecb43d777966b21105e"
@@ -9538,17 +8829,17 @@ webpack-dev-middleware@^1.12.0:
     time-stamp "^2.0.0"
 
 webpack-sources@^1.0.1:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
-  integrity sha512-aqYp18kPphgoO5c/+NaUvEeACtZjMESmDChuD3NBciVpah3XpMEU9VAAtIaB1BsfJWWTSdv8Vv1m3T0aRk2dUw==
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.3.0.tgz#2a28dcb9f1f45fe960d8f1493252b5ee6530fa85"
+  integrity sha512-OiVgSrbGu7NEnEvQJJgdSFPl2qWKkWq5lHMhgiToIiN9w34EBnjYzSYs+VbL5KoYiLNtFFa7BZIKxRED3I32pA==
   dependencies:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
 webpack@^3.11.0:
-  version "3.11.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.11.0.tgz#77da451b1d7b4b117adaf41a1a93b5742f24d894"
-  integrity sha512-3kOFejWqj5ISpJk4Qj/V7w98h9Vl52wak3CLiw/cDOfbVTq7FeoZ0SdoHHY9PYlHr50ZS42OfvzE2vB4nncKQg==
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.12.0.tgz#3f9e34360370602fcf639e97939db486f4ec0d74"
+  integrity sha512-Sw7MdIIOv/nkzPzee4o0EdvCuPmxT98+vVpIvwtcwcF1Q4SDSNp92vwcKc4REe7NItH9f1S4ra9FuQ7yuYZ8bQ==
   dependencies:
     acorn "^5.0.0"
     acorn-dynamic-import "^2.0.0"
@@ -9579,28 +8870,12 @@ weex-js-runtime@^0.23.6:
   integrity sha512-3BFd5GXTo0X/GWh0KjzXDpIcPJuSwYuc9fE9llgez35IfVHs/nUmfkFBjifzxOJS2YLhtKf0Cy8eTQ00CJDWZA==
 
 weex-styler@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/weex-styler/-/weex-styler-0.3.0.tgz#5d614c9cf6d8cec0e23231a92955b722556bfe1a"
-  integrity sha512-+zVcQO27iIh5rwGwvpbJKsFN3rciRRiRwXZDYRvzoHBzooCvtCf3tj0FtMtz9v1Z0IlGn/WH3m/Y0SocUdO/jQ==
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/weex-styler/-/weex-styler-0.3.1.tgz#47d0188cc70aff97ccaa3a63b98733d549848680"
+  integrity sha512-xkX5/wS/QLiJXKwbdpeytbLN0kHviQwj9CLdvBxqu+RRZABZpTniKZr1oxjh9Q0+n/aRC+smwFpQpUKvXh9V1g==
   dependencies:
     css "~2.2.1"
 
-whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz#57c235bc8657e914d24e1a397d3c82daee0a6ba3"
-  integrity sha512-jLBwwKUhi8WtBfsMQlL4bUUcT8sMkAtQinscJAe/M4KHCkHuUJAF6vuB0tueNIw4c8ziO6AkRmgY+jL3a0iiPw==
-  dependencies:
-    iconv-lite "0.4.19"
-
-whatwg-url@^6.4.0:
-  version "6.4.0"
-  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-6.4.0.tgz#08fdf2b9e872783a7a1f6216260a1d66cc722e08"
-  integrity sha512-Z0CVh/YE217Foyb488eo+iBv+r7eAQ0wSTyApi9n06jhcA3z6Nidg/EGvl0UFkg7kMdKxfBzzr+o9JF+cevgMg==
-  dependencies:
-    lodash.sortby "^4.7.0"
-    tr46 "^1.0.0"
-    webidl-conversions "^4.0.1"
-
 when@^3.7.7:
   version "3.7.8"
   resolved "https://registry.yarnpkg.com/when/-/when-3.7.8.tgz#c7130b6a7ea04693e842cdc9e7a1f2aa39a39f82"
@@ -9612,24 +8887,29 @@ which-module@^2.0.0:
   integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
 
 which@^1.1.1, which@^1.2.1, which@^1.2.10, which@^1.2.12, which@^1.2.9:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
-  integrity sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
+  integrity sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==
   dependencies:
     isexe "^2.0.0"
 
 wide-align@^1.1.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.2.tgz#571e0f1b0604636ebc0dfc21b0339bbe31341710"
-  integrity sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.3.tgz#ae074e6bdc0c14a431e804e624549c633b000457"
+  integrity sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==
   dependencies:
-    string-width "^1.0.2"
+    string-width "^1.0.2 || 2"
 
 window-size@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
   integrity sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=
 
+with-callback@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/with-callback/-/with-callback-1.0.2.tgz#a09629b9a920028d721404fb435bdcff5c91bc21"
+  integrity sha1-oJYpuakgAo1yFAT7Q1vc/1yRvCE=
+
 word-wrap@^1.0.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
@@ -9670,14 +8950,6 @@ write@^0.2.1:
   dependencies:
     mkdirp "^0.5.1"
 
-ws@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-4.1.0.tgz#a979b5d7d4da68bf54efe0408967c324869a7289"
-  integrity sha512-ZGh/8kF9rrRNffkLFV4AzhvooEclrOH0xaugmqGsIfFgOE/pIz4fMc4Ef+5HSQqTEug2S9JZIWDR47duDSLfaA==
-  dependencies:
-    async-limiter "~1.0.0"
-    safe-buffer "~5.1.0"
-
 ws@~3.3.1:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
@@ -9687,11 +8959,6 @@ ws@~3.3.1:
     safe-buffer "~5.1.0"
     ultron "~1.1.0"
 
-xml-name-validator@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
-  integrity sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==
-
 xmlhttprequest-ssl@~1.5.4:
   version "1.5.5"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz#c2876b06168aadc40e57d97e81191ac8f4398b3e"
@@ -9702,7 +8969,7 @@ xregexp@2.0.0:
   resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-2.0.0.tgz#52a63e56ca0b84a7f3a5f3d61872f126ad7a5943"
   integrity sha1-UqY+VsoLhKfzpfPWGHLxJq16WUM=
 
-xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
+xtend@^4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
   integrity sha1-pcbVMr5lbiPbgg77lDofBJmNY68=
@@ -9717,6 +8984,11 @@ yallist@^2.1.2:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
   integrity sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=
 
+yallist@^3.0.0, yallist@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
+  integrity sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k=
+
 yargs-parser@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
@@ -9775,7 +9047,7 @@ yorkie@^1.0.1:
     normalize-path "^1.0.0"
     strip-indent "^2.0.0"
 
-zip-stream@^1.1.0:
+zip-stream@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04"
   integrity sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=

From 52f9d3f492b9e5e6ec30f4986201ae774e5c460a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 24 Oct 2018 10:41:38 -0400
Subject: [PATCH 529/911] build: upgrade webpack & karma

---
 package.json                   |    6 +-
 scripts/config.js              |    5 +
 test/unit/karma.base.config.js |    2 +-
 yarn.lock                      | 1584 +++++++++++---------------------
 4 files changed, 550 insertions(+), 1047 deletions(-)

diff --git a/package.json b/package.json
index 2249122f114..5a660a6a688 100644
--- a/package.json
+++ b/package.json
@@ -106,7 +106,7 @@
     "http-server": "^0.11.1",
     "jasmine": "^2.99.0",
     "jasmine-core": "^2.99.0",
-    "karma": "^2.0.0",
+    "karma": "^3.1.1",
     "karma-chrome-launcher": "^2.1.1",
     "karma-coverage": "^1.1.1",
     "karma-firefox-launcher": "^1.0.1",
@@ -116,7 +116,7 @@
     "karma-safari-launcher": "^1.0.0",
     "karma-sauce-launcher": "^1.1.0",
     "karma-sourcemap-loader": "^0.3.7",
-    "karma-webpack": "^2.0.3",
+    "karma-webpack": "^4.0.0-rc.2",
     "lint-staged": "^7.0.0",
     "lodash": "^4.17.4",
     "lodash.template": "^4.4.0",
@@ -139,7 +139,7 @@
     "shelljs": "^0.8.1",
     "typescript": "^2.7.1",
     "uglify-js": "^3.0.15",
-    "webpack": "^3.11.0",
+    "webpack": "^4.22.0",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
     "yorkie": "^1.0.1"
diff --git a/scripts/config.js b/scripts/config.js
index 4fe40552521..1432ecd1fbb 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -188,6 +188,11 @@ function genConfig (name) {
       format: opts.format,
       banner: opts.banner,
       name: opts.moduleName || 'Vue'
+    },
+    onwarn: (msg, warn) => {
+      if (!/Circular/.test(msg)) {
+        warn(msg)
+      }
     }
   }
 
diff --git a/test/unit/karma.base.config.js b/test/unit/karma.base.config.js
index b3f0df261de..8f0a706d382 100644
--- a/test/unit/karma.base.config.js
+++ b/test/unit/karma.base.config.js
@@ -2,6 +2,7 @@ var alias = require('../../scripts/alias')
 var webpack = require('webpack')
 
 var webpackConfig = {
+  mode: 'development',
   resolve: {
     alias: alias
   },
@@ -18,7 +19,6 @@ var webpackConfig = {
     new webpack.DefinePlugin({
       __WEEX__: false,
       'process.env': {
-        NODE_ENV: '"development"',
         TRANSITION_DURATION: process.env.CI ? 100 : 50,
         TRANSITION_BUFFER: 10
       }
diff --git a/yarn.lock b/yarn.lock
index 14395f0e638..d4813f660a4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -773,6 +773,159 @@
     "@types/uglify-js" "*"
     source-map "^0.6.0"
 
+"@webassemblyjs/ast@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.7.8.tgz#f31f480debeef957f01b623f27eabc695fa4fe8f"
+  integrity sha512-dOrtdtEyB8sInpl75yLPNksY4sRl0j/+t6aHyB/YA+ab9hV3Fo7FmG12FHzP+2MvWVAJtDb+6eXR5EZbZJ+uVg==
+  dependencies:
+    "@webassemblyjs/helper-module-context" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/wast-parser" "1.7.8"
+
+"@webassemblyjs/floating-point-hex-parser@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.7.8.tgz#1b3ed0e27e384032254e9322fc646dd3e70ef1b9"
+  integrity sha512-kn2zNKGsbql5i56VAgRYkpG+VazqHhQQZQycT2uXAazrAEDs23gy+Odkh5VblybjnwX2/BITkDtNmSO76hdIvQ==
+
+"@webassemblyjs/helper-api-error@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.7.8.tgz#a2b49c11f615e736f815ec927f035dcfa690d572"
+  integrity sha512-xUwxDXsd1dUKArJEP5wWM5zxgCSwZApSOJyP1XO7M8rNUChUDblcLQ4FpzTpWG2YeylMwMl1MlP5Ztryiz1x4g==
+
+"@webassemblyjs/helper-buffer@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.7.8.tgz#3fc66bfa09c1c60e824cf3d5887826fac062877d"
+  integrity sha512-WXiIMnuvuwlhWvVOm8xEXU9DnHaa3AgAU0ZPfvY8vO1cSsmYb2WbGbHnMLgs43vXnA7XAob9b56zuZaMkxpCBg==
+
+"@webassemblyjs/helper-code-frame@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.7.8.tgz#cc5a7e9522b70e7580df056dfd34020cf29645b0"
+  integrity sha512-TLQxyD9qGOIdX5LPQOPo0Ernd88U5rHkFb8WAjeMIeA0sPjCHeVPaGqUGGIXjUcblUkjuDAc07bruCcNHUrHDA==
+  dependencies:
+    "@webassemblyjs/wast-printer" "1.7.8"
+
+"@webassemblyjs/helper-fsm@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.7.8.tgz#fe4607430af466912797c21acafd3046080182ea"
+  integrity sha512-TjK0CnD8hAPkV5mbSp5aWl6SO1+H3WFcjWtixWoy8EMA99YnNzYhpc/WSYWhf7yrhpzkq5tZB0tvLK3Svr3IXA==
+
+"@webassemblyjs/helper-module-context@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.7.8.tgz#3c2e7ee93d14ff4768ba66fb1be42fdc9dc7160a"
+  integrity sha512-uCutAKR7Nm0VsFixcvnB4HhAyHouNbj0Dx1p7eRjFjXGGZ+N7ftTaG1ZbWCasAEbtwGj54LP8+lkBZdTCPmLGg==
+
+"@webassemblyjs/helper-wasm-bytecode@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.7.8.tgz#89bdb78cd6dd5209ae2ed2925de78d0f0e00b6f0"
+  integrity sha512-AdCCE3BMW6V34WYaKUmPgVHa88t2Z14P4/0LjLwuGkI0X6pf7nzp0CehzVVk51cKm2ymVXjl9dCG+gR1yhITIQ==
+
+"@webassemblyjs/helper-wasm-section@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.7.8.tgz#c68ef7d26a6fc12421b2e6e56f9bc810dfb33e87"
+  integrity sha512-BkBhYQuzyl4hgTGOKo87Vdw6f9nj8HhI7WYpI0MCC5qFa5ahrAPOGgyETVdnRbv+Rjukl9MxxfDmVcVC435lDg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-buffer" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/wasm-gen" "1.7.8"
+
+"@webassemblyjs/ieee754@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.7.8.tgz#1f37974b13cb486a9237e73ce04cac7a2f1265ed"
+  integrity sha512-tOarWChdG1a3y1yqCX0JMDKzrat5tQe4pV6K/TX19BcXsBLYxFQOL1DEDa5KG9syeyvCrvZ+i1+Mv1ExngvktQ==
+  dependencies:
+    "@xtuc/ieee754" "^1.2.0"
+
+"@webassemblyjs/leb128@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.7.8.tgz#1bee83426819192db2ea1a234b84c7ebc6d34c1f"
+  integrity sha512-GCYeGPgUFWJiZuP4NICbcyUQNxNLJIf476Ei+K+jVuuebtLpfvwkvYT6iTUE7oZYehhkor4Zz2g7SJ/iZaPudQ==
+  dependencies:
+    "@xtuc/long" "4.2.1"
+
+"@webassemblyjs/utf8@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.7.8.tgz#2b489d5cf43e0aebb93d8e2d792aff9879c61f05"
+  integrity sha512-9X+f0VV+xNXW2ujfIRSXBJENGE6Qh7bNVKqu3yDjTFB3ar3nsThsGBBKdTG58aXOm2iUH6v28VIf88ymPXODHA==
+
+"@webassemblyjs/wasm-edit@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.7.8.tgz#f8bdbe7088718eca27b1c349bb7c06b8a457950c"
+  integrity sha512-6D3Hm2gFixrfyx9XjSON4ml1FZTugqpkIz5Awvrou8fnpyprVzcm4X8pyGRtA2Piixjl3DqmX/HB1xdWyE097A==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-buffer" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/helper-wasm-section" "1.7.8"
+    "@webassemblyjs/wasm-gen" "1.7.8"
+    "@webassemblyjs/wasm-opt" "1.7.8"
+    "@webassemblyjs/wasm-parser" "1.7.8"
+    "@webassemblyjs/wast-printer" "1.7.8"
+
+"@webassemblyjs/wasm-gen@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.7.8.tgz#7e8abf1545eae74ac6781d545c034af3cfd0c7d5"
+  integrity sha512-a7O/wE6eBeVKKUYgpMK7NOHmMADD85rSXLe3CqrWRDwWff5y3cSVbzpN6Qv3z6C4hdkpq9qyij1Ga1kemOZGvQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/ieee754" "1.7.8"
+    "@webassemblyjs/leb128" "1.7.8"
+    "@webassemblyjs/utf8" "1.7.8"
+
+"@webassemblyjs/wasm-opt@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.7.8.tgz#7ada6e211914728fce02ff0ff9c344edc6d41f26"
+  integrity sha512-3lbQ0PT81NHCdi1sR/7+SNpZadM4qYcTSr62nFFAA7e5lFwJr14M1Gi+A/Y3PgcDWOHYjsaNGPpPU0H03N6Blg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-buffer" "1.7.8"
+    "@webassemblyjs/wasm-gen" "1.7.8"
+    "@webassemblyjs/wasm-parser" "1.7.8"
+
+"@webassemblyjs/wasm-parser@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.7.8.tgz#dac47c291fb6a3e63529aecd647592cd34afbf94"
+  integrity sha512-rZ/zlhp9DHR/05zh1MbAjT2t624sjrPP/OkJCjXqzm7ynH+nIdNcn9Ixc+qzPMFXhIrk0rBoQ3to6sEIvHh9jQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-api-error" "1.7.8"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
+    "@webassemblyjs/ieee754" "1.7.8"
+    "@webassemblyjs/leb128" "1.7.8"
+    "@webassemblyjs/utf8" "1.7.8"
+
+"@webassemblyjs/wast-parser@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.7.8.tgz#f8aab9a450c048c1f9537695c89faeb92fabfba5"
+  integrity sha512-Q/zrvtUvzWuSiJMcSp90fi6gp2nraiHXjTV2VgAluVdVapM4gy1MQn7akja2p6eSBDQpKJPJ6P4TxRkghRS5dg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/floating-point-hex-parser" "1.7.8"
+    "@webassemblyjs/helper-api-error" "1.7.8"
+    "@webassemblyjs/helper-code-frame" "1.7.8"
+    "@webassemblyjs/helper-fsm" "1.7.8"
+    "@xtuc/long" "4.2.1"
+
+"@webassemblyjs/wast-printer@1.7.8":
+  version "1.7.8"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.7.8.tgz#e7e965782c1912f6a965f14a53ff43d8ad0403a5"
+  integrity sha512-GllIthRtwTxRDAURRNXscu7Napzmdf1jt1gpiZiK/QN4fH0lSGs3OTmvdfsMNP7tqI4B3ZtfaaWRlNIQug6Xyg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/wast-parser" "1.7.8"
+    "@xtuc/long" "4.2.1"
+
+"@xtuc/ieee754@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@xtuc/ieee754/-/ieee754-1.2.0.tgz#eef014a3145ae477a1cbc00cd1e552336dceb790"
+  integrity sha512-DX8nKgqcGwsc0eJSqYt5lwP4DH5FlHnmuWWBRy7X0NcaGR0ZtuyeESgMwTYVEtxmsNGY+qit4QYT/MIYTOTPeA==
+
+"@xtuc/long@4.2.1":
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.1.tgz#5c85d662f76fa1d34575766c5dcd6615abcd30d8"
+  integrity sha512-FZdkNBDqBRHKQ2MEbSC17xnPFOhZxeJ2YGSfr2BKf3sujG49Qe3bB+rGCwQfIaA7WHnGeGkSijX4FuBCdrzW/g==
+
 JSONStream@^1.0.4:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.5.tgz#3208c1f08d3a4d99261ab64f92302bc15e111ca0"
@@ -799,12 +952,12 @@ accepts@~1.3.4:
     mime-types "~2.1.18"
     negotiator "0.6.1"
 
-acorn-dynamic-import@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz#c752bd210bef679501b6c6cb7fc84f8f47158cc4"
-  integrity sha1-x1K9IQvvZ5UBtsbLf8hPj0cVjMQ=
+acorn-dynamic-import@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
+  integrity sha512-zVWV8Z8lislJoOKKqdNMOB+s6+XV5WERty8MnKBeFgwA+19XJjJHs2RP5dzM57FftIs+jQnRToLiWazKr6sSWg==
   dependencies:
-    acorn "^4.0.3"
+    acorn "^5.0.0"
 
 acorn-jsx@^3.0.0:
   version "3.0.1"
@@ -818,21 +971,11 @@ acorn@^3.0.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
   integrity sha1-ReN/s56No/JbruP/U2niu18iAXo=
 
-acorn@^4.0.3:
-  version "4.0.13"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
-  integrity sha1-EFSVrlNh1pe9GVyCUZLhrX8lN4c=
-
-acorn@^5.0.0, acorn@^5.2.1, acorn@^5.5.0:
+acorn@^5.0.0, acorn@^5.2.1, acorn@^5.5.0, acorn@^5.6.2:
   version "5.7.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
   integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
 
-addressparser@1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/addressparser/-/addressparser-1.0.1.tgz#47afbe1a2a9262191db6838e4fd1d39b40821746"
-  integrity sha1-R6++GiqSYhkdtoOOT9HTm0CCF0Y=
-
 adm-zip@~0.4.3:
   version "0.4.11"
   resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.11.tgz#2aa54c84c4b01a9d0fb89bb11982a51f13e3d62a"
@@ -851,7 +994,7 @@ agent-base@2:
     extend "~3.0.0"
     semver "~5.0.1"
 
-agent-base@4, agent-base@^4.1.0, agent-base@^4.2.0, agent-base@~4.2.0:
+agent-base@^4.1.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.1.tgz#d89e5999f797875674c07d87f260fc41e83e8ca9"
   integrity sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==
@@ -888,30 +1031,15 @@ ajv@^6.1.0:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
-align-text@^0.1.1, align-text@^0.1.3:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
-  integrity sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=
-  dependencies:
-    kind-of "^3.0.2"
-    longest "^1.0.1"
-    repeat-string "^1.5.2"
-
 amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
   integrity sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=
 
-amqplib@^0.5.2:
-  version "0.5.2"
-  resolved "https://registry.yarnpkg.com/amqplib/-/amqplib-0.5.2.tgz#d2d7313c7ffaa4d10bcf1e6252de4591b6cc7b63"
-  integrity sha512-l9mCs6LbydtHqRniRwYkKdqxVa6XMz3Vw1fh+2gJaaVgTM6Jk3o8RccAKWKtlhT1US5sWrFh+KKxsVUALURSIA==
-  dependencies:
-    bitsyntax "~0.0.4"
-    bluebird "^3.4.6"
-    buffer-more-ints "0.0.2"
-    readable-stream "1.x >=1.1.9"
-    safe-buffer "^5.0.1"
+ansi-colors@^3.0.0:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.1.tgz#9638047e4213f3428a11944a7d4b31cba0a3ff95"
+  integrity sha512-Xt+zb6nqgvV9SWAVp0EG3lRsHcbq5DDgqjPPz6pwgtj6RKz65zGXMNa82oJfOSBA/to6GmRP7Dr+6o+kbApTzQ==
 
 ansi-escapes@^1.0.0, ansi-escapes@^1.1.0:
   version "1.4.0"
@@ -958,7 +1086,7 @@ anymatch@^2.0.0:
     micromatch "^3.1.4"
     normalize-path "^2.1.1"
 
-aproba@^1.0.3:
+aproba@^1.0.3, aproba@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
   integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
@@ -1099,11 +1227,6 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
   integrity sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=
 
-assert-plus@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-0.2.0.tgz#d74e1b87e7affc0db8aadb7021f3fe48101ab234"
-  integrity sha1-104bh+ev/A24qttwIfP+SBAasjQ=
-
 assert@^1.1.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/assert/-/assert-1.4.1.tgz#99912d591836b5a6f5b345c0f07eefc08fc65d91"
@@ -1148,7 +1271,7 @@ async@2.0.1:
   dependencies:
     lodash "^4.8.0"
 
-async@^2.0.0, async@^2.1.2, async@^2.5.0, async@~2.6.0:
+async@^2.0.0, async@^2.1.2, async@^2.5.0:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
   integrity sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==
@@ -1165,28 +1288,16 @@ atob@^2.1.1:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
-aws-sign2@~0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
-  integrity sha1-FDQt0428yU0OW4fXY81jYSwOeU8=
-
 aws-sign2@~0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
   integrity sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=
 
-aws4@^1.2.1, aws4@^1.6.0, aws4@^1.8.0:
+aws4@^1.6.0, aws4@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
-axios@^0.15.3:
-  version "0.15.3"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.15.3.tgz#2c9d638b2e191a08ea1d6cc988eadd6ba5bdc053"
-  integrity sha1-LJ1jiy4ZGgjqHWzJiOrda6W9wFM=
-  dependencies:
-    follow-redirects "1.0.0"
-
 babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
@@ -1311,7 +1422,7 @@ babel-preset-flow-vue@^1.0.0:
     babel-plugin-transform-class-properties "^6.8.0"
     babel-plugin-transform-flow-strip-types "^6.8.0"
 
-babel-runtime@^6.0.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
+babel-runtime@^6.22.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
   integrity sha1-llxwWGaOgrVde/4E/yM3vItWR/4=
@@ -1427,13 +1538,6 @@ binary-extensions@^1.0.0:
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.12.0.tgz#c2d780f53d45bba8317a8902d4ceeaf3a6385b14"
   integrity sha512-DYWGk01lDcxeS/K9IHPGWfT8PsJmbXRtRd2Sx72Tnb8pcYZQFF1oSDb8hJtS1vhp212q1Rzi5dUf9+nq0o9UIg==
 
-bitsyntax@~0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/bitsyntax/-/bitsyntax-0.0.4.tgz#eb10cc6f82b8c490e3e85698f07e83d46e0cba82"
-  integrity sha1-6xDMb4K4xJDj6FaY8H6D1G4MuoI=
-  dependencies:
-    buffer-more-ints "0.0.2"
-
 bl@^1.0.0:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.2.tgz#a160911717103c07410cef63ef51b397c025af9c"
@@ -1442,19 +1546,12 @@ bl@^1.0.0:
     readable-stream "^2.3.5"
     safe-buffer "^5.1.1"
 
-bl@~1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-1.1.2.tgz#fdca871a99713aa00d19e3bbba41c44787a65398"
-  integrity sha1-/cqHGplxOqANGeO7ukHER4emU5g=
-  dependencies:
-    readable-stream "~2.0.5"
-
 blob@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
   integrity sha1-vPEwUspURj8w+fx+lbmkdjCpSSE=
 
-bluebird@^3.3.0, bluebird@^3.4.6:
+bluebird@^3.3.0, bluebird@^3.5.1:
   version "3.5.2"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.2.tgz#1be0908e054a751754549c270489c1505d4ab15a"
   integrity sha512-dhHTWMI7kMx5whMQntl7Vr9C6BvV10lFXDAasnqnrMYhXVCzzk6IO9Fo2L75jXHT07WrOngL1WDXOp+yYS91Yg==
@@ -1480,13 +1577,6 @@ body-parser@^1.16.1:
     raw-body "2.3.3"
     type-is "~1.6.16"
 
-boom@2.x.x:
-  version "2.10.1"
-  resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
-  integrity sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=
-  dependencies:
-    hoek "2.x.x"
-
 boom@4.x.x:
   version "4.3.1"
   resolved "https://registry.yarnpkg.com/boom/-/boom-4.3.1.tgz#4f8a3005cb4a7e3889f749030fd25b96e01d2e31"
@@ -1659,11 +1749,6 @@ buffer-from@^1.0.0:
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
   integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
 
-buffer-more-ints@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/buffer-more-ints/-/buffer-more-ints-0.0.2.tgz#26b3885d10fa13db7fc01aae3aab870199e0124c"
-  integrity sha1-JrOIXRD6E9t/wBquOquHAZngEkw=
-
 buffer-xor@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
@@ -1686,19 +1771,6 @@ buffer@^5.1.0:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
 
-buildmail@4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/buildmail/-/buildmail-4.0.1.tgz#877f7738b78729871c9a105e3b837d2be11a7a72"
-  integrity sha1-h393OLeHKYccmhBeO4N9K+EaenI=
-  dependencies:
-    addressparser "1.0.1"
-    libbase64 "0.1.0"
-    libmime "3.0.0"
-    libqp "1.1.0"
-    nodemailer-fetch "1.6.0"
-    nodemailer-shared "1.1.0"
-    punycode "1.4.1"
-
 builtin-modules@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
@@ -1719,6 +1791,25 @@ bytes@3.0.0:
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
   integrity sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=
 
+cacache@^10.0.4:
+  version "10.0.4"
+  resolved "https://registry.yarnpkg.com/cacache/-/cacache-10.0.4.tgz#6452367999eff9d4188aefd9a14e9d7c6a263460"
+  integrity sha512-Dph0MzuH+rTQzGPNT9fAnrPmMmjKfST6trxJeK7NQuHRaVw24VzPRWTmg9MpcwOVQZO0E1FBICUlFeNaKPIfHA==
+  dependencies:
+    bluebird "^3.5.1"
+    chownr "^1.0.1"
+    glob "^7.1.2"
+    graceful-fs "^4.1.11"
+    lru-cache "^4.1.1"
+    mississippi "^2.0.0"
+    mkdirp "^0.5.1"
+    move-concurrently "^1.0.1"
+    promise-inflight "^1.0.1"
+    rimraf "^2.6.2"
+    ssri "^5.2.4"
+    unique-filename "^1.1.0"
+    y18n "^4.0.0"
+
 cache-base@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
@@ -1775,11 +1866,6 @@ camelcase-keys@^4.0.0:
     map-obj "^2.0.0"
     quick-lru "^1.0.0"
 
-camelcase@^1.0.2:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
-  integrity sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=
-
 camelcase@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
@@ -1795,24 +1881,11 @@ caniuse-lite@^1.0.30000898:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000898.tgz#651306e690ca83caca5814da5afa3eb4de0f86c2"
   integrity sha512-ytlTZqO4hYe4rNAJhMynUAIUI33jsP2Bb1two/9OVC39wZjPZ8exIO0eCLw5mqAtegOGiGF0kkTWTn3B02L+mw==
 
-caseless@~0.11.0:
-  version "0.11.0"
-  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.11.0.tgz#715b96ea9841593cc33067923f5ec60ebda4f7d7"
-  integrity sha1-cVuW6phBWTzDMGeSP17GDr2k99c=
-
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
-center-align@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/center-align/-/center-align-0.1.3.tgz#aa0d32629b6ee972200411cbd4461c907bc2b7ad"
-  integrity sha1-qg0yYptu6XIgBBHL1EYckHvCt60=
-  dependencies:
-    align-text "^0.1.3"
-    lazy-cache "^1.0.3"
-
 chai-nightwatch@~0.1.x:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/chai-nightwatch/-/chai-nightwatch-0.1.1.tgz#1ca56de768d3c0868fe7fc2f4d32c2fe894e6be9"
@@ -1821,7 +1894,7 @@ chai-nightwatch@~0.1.x:
     assertion-error "1.0.0"
     deep-eql "0.1.3"
 
-chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
+chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   integrity sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=
@@ -1871,6 +1944,13 @@ chownr@^1.0.1:
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
   integrity sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g==
 
+chrome-trace-event@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/chrome-trace-event/-/chrome-trace-event-1.0.0.tgz#45a91bd2c20c9411f0963b5aaeb9a1b95e09cc48"
+  integrity sha512-xDbVgyfDTT2piup/h8dK/y4QZfJRSa73bw1WZ8b4XM1o7fsFubUVGYcE+1ANtOzJJELGpYoG2961z0Z6OAld9A==
+  dependencies:
+    tslib "^1.9.0"
+
 chromedriver@^2.30.1:
   version "2.43.0"
   resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-2.43.0.tgz#435d3e582e8383204827c1ffd8be80683da20330"
@@ -1900,7 +1980,7 @@ circular-json@^0.3.1:
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
   integrity sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A==
 
-circular-json@^0.5.4:
+circular-json@^0.5.5:
   version "0.5.9"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.5.9.tgz#932763ae88f4f7dead7a0d09c8a51a4743a53b1d"
   integrity sha512-4ivwqHpIFJZBuhN3g/pEcdbnGUywkBblloGbkglyloVjjR3uT6tieI89MVOfbP2tHX5sgb01FuLgAOzebNlJNQ==
@@ -1942,24 +2022,6 @@ cli-width@^2.0.0:
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
   integrity sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=
 
-cliui@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
-  integrity sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=
-  dependencies:
-    center-align "^0.1.1"
-    right-align "^0.1.1"
-    wordwrap "0.0.2"
-
-cliui@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
-  integrity sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=
-  dependencies:
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
-    wrap-ansi "^2.0.0"
-
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
@@ -2023,7 +2085,7 @@ combine-lists@^1.0.0:
   dependencies:
     lodash "^4.5.0"
 
-combined-stream@^1.0.5, combined-stream@^1.0.6, combined-stream@~1.0.5, combined-stream@~1.0.6:
+combined-stream@^1.0.6, combined-stream@~1.0.5, combined-stream@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.7.tgz#2d1d24317afb8abe95d6d2c0b07b57813539d828"
   integrity sha512-brWl9y6vOB1xYPZcpZde3N9zDByXTosAeMDo4p1wzo6UMOX4vumB+TP1RZ76sfE6Md68Q0NJSrE/gbezd4Ul+w==
@@ -2042,6 +2104,11 @@ commander@^2.14.1, commander@^2.9.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
   integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
 
+commander@~2.13.0:
+  version "2.13.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
+  integrity sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==
+
 commander@~2.17.1:
   version "2.17.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
@@ -2112,7 +2179,7 @@ concat-map@0.0.1:
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
-concat-stream@1.6.2, concat-stream@^1.4.7, concat-stream@^1.6.0:
+concat-stream@1.6.2, concat-stream@^1.4.7, concat-stream@^1.5.0, concat-stream@^1.6.0:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
@@ -2314,6 +2381,18 @@ cookie@0.3.1:
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
   integrity sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=
 
+copy-concurrently@^1.0.0:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/copy-concurrently/-/copy-concurrently-1.0.5.tgz#92297398cae34937fcafd6ec8139c18051f0b5e0"
+  integrity sha512-f2domd9fsVDFtaFcbaRZuYXwtdmnzqbADSwhSWYxYB/Q8zsdUUFMXVRwXGDMWmbEzAn1kdRrtI1T/KTFOL4X2A==
+  dependencies:
+    aproba "^1.1.1"
+    fs-write-stream-atomic "^1.0.8"
+    iferr "^0.1.5"
+    mkdirp "^0.5.1"
+    rimraf "^2.5.4"
+    run-queue "^1.0.0"
+
 copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
@@ -2398,13 +2477,6 @@ cross-spawn@^5.0.1, cross-spawn@^5.1.0:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-cryptiles@2.x.x:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
-  integrity sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=
-  dependencies:
-    boom "2.x.x"
-
 cryptiles@3.x.x:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-3.1.2.tgz#a89fbb220f5ce25ec56e8c4aa8a4fd7b5b0d29fe"
@@ -2451,6 +2523,11 @@ custom-event@~1.0.0:
   resolved "https://registry.yarnpkg.com/custom-event/-/custom-event-1.0.1.tgz#5d02a46850adf1b4a317946a3928fccb5bfd0425"
   integrity sha1-XQKkaFCt8bSjF5RqOSj8y1v9BCU=
 
+cyclist@~0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-0.2.2.tgz#1b33792e11e914a2fd6d6ed6447464444e5fa640"
+  integrity sha1-GzN5LhHpFKL9bW7WRHRkRE5fpkA=
+
 cz-conventional-changelog@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/cz-conventional-changelog/-/cz-conventional-changelog-2.0.0.tgz#55a979afdfe95e7024879d2a0f5924630170b533"
@@ -2474,13 +2551,6 @@ cz-conventional-changelog@^2.0.0:
     right-pad "^1.0.1"
     word-wrap "^1.0.3"
 
-d@1:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
-  integrity sha1-dUu1v+VUUdpppYuU1F9MWwRi1Y8=
-  dependencies:
-    es5-ext "^0.10.9"
-
 dargs@^4.0.1:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/dargs/-/dargs-4.1.0.tgz#03a9dbb4b5c2f139bf14ae53f0b8a2a6a86f4e17"
@@ -2533,7 +2603,7 @@ de-indent@^1.0.2:
   resolved "https://registry.yarnpkg.com/de-indent/-/de-indent-1.0.2.tgz#b2038e846dc33baa5796128d0804b455b8c1e21d"
   integrity sha1-sgOOhG3DO6pXlhKNCAS0VbjB4h0=
 
-debug@2, debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@~2.6.4, debug@~2.6.6:
+debug@2, debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
@@ -2547,7 +2617,7 @@ debug@2.2.0:
   dependencies:
     ms "0.7.1"
 
-debug@3.1.0, debug@=3.1.0, debug@~3.1.0:
+debug@=3.1.0, debug@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
@@ -2569,7 +2639,7 @@ decamelize-keys@^1.0.0:
     decamelize "^1.1.0"
     map-obj "^1.0.0"
 
-decamelize@^1.0.0, decamelize@^1.1.0, decamelize@^1.1.1, decamelize@^1.1.2:
+decamelize@^1.1.0, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
@@ -2635,7 +2705,7 @@ define-property@^2.0.2:
     is-descriptor "^1.0.2"
     isobject "^3.0.1"
 
-degenerator@^1.0.4, degenerator@~1.0.2:
+degenerator@~1.0.2:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/degenerator/-/degenerator-1.0.4.tgz#fcf490a37ece266464d9cc431ab98c5819ced095"
   integrity sha1-/PSQo37OJmRk2cxDGrmMWBnO0JU=
@@ -2797,10 +2867,15 @@ dot-prop@^3.0.0:
   dependencies:
     is-obj "^1.0.0"
 
-double-ended-queue@^2.1.0-0:
-  version "2.1.0-0"
-  resolved "https://registry.yarnpkg.com/double-ended-queue/-/double-ended-queue-2.1.0-0.tgz#103d3527fd31528f40188130c841efdd78264e5c"
-  integrity sha1-ED01J/0xUo9AGIEwyEHv3XgmTlw=
+duplexify@^3.4.2, duplexify@^3.6.0:
+  version "3.6.1"
+  resolved "https://registry.yarnpkg.com/duplexify/-/duplexify-3.6.1.tgz#b1a7a29c4abfd639585efaecce80d666b1e34125"
+  integrity sha512-vM58DwdnKmty+FSPzT14K9JXb90H+j5emaR4KYbr2KTIz00WHGbWOe5ghQTx233ZCLZtrGDALzKwcjEtSt35mA==
+  dependencies:
+    end-of-stream "^1.0.0"
+    inherits "^2.0.1"
+    readable-stream "^2.0.0"
+    stream-shift "^1.0.0"
 
 ecc-jsbn@~0.1.1:
   version "0.1.2"
@@ -2870,17 +2945,17 @@ encoding@^0.1.11:
   dependencies:
     iconv-lite "~0.4.13"
 
-end-of-stream@^1.0.0:
+end-of-stream@^1.0.0, end-of-stream@^1.1.0:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.1.tgz#ed29634d19baba463b6ce6b80a37213eab71ec43"
   integrity sha512-1MkrZNvWTKCaigbn+W15elq2BB/L22nqrSY5DKlo3X6+vclJm8Bb5djXJBmEX6fS3+zCh/F4VBK5Z2KxJt4s2Q==
   dependencies:
     once "^1.4.0"
 
-engine.io-client@~3.1.0:
-  version "3.1.6"
-  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.1.6.tgz#5bdeb130f8b94a50ac5cbeb72583e7a4a063ddfd"
-  integrity sha512-hnuHsFluXnsKOndS4Hv6SvUrgdYx1pk2NqfaDMW+GWdgfU3+/V25Cj7I8a0x92idSpa5PIhJRKxPvp9mnoLsfg==
+engine.io-client@~3.2.0:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.2.1.tgz#6f54c0475de487158a1a7c77d10178708b6add36"
+  integrity sha512-y5AbkytWeM4jQr7m/koQLc5AxpRKC1hEVUb/s1FUAWEJq5AzJJ4NLvzuKPuxtDi5Mq755WuDvZ6Iv2rXj4PTzw==
   dependencies:
     component-emitter "1.2.1"
     component-inherit "0.0.3"
@@ -2905,10 +2980,10 @@ engine.io-parser@~2.1.0, engine.io-parser@~2.1.1:
     blob "0.0.4"
     has-binary2 "~1.0.2"
 
-engine.io@~3.1.0:
-  version "3.1.5"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.1.5.tgz#0e7ef9d690eb0b35597f1d4ad02a26ca2dba3845"
-  integrity sha512-D06ivJkYxyRrcEe0bTpNnBQNgP9d3xog+qZlLbui8EsMr/DouQpf5o9FzJnWYHEYE0YsFHllUv2R1dkgYZXHcA==
+engine.io@~3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.2.0.tgz#54332506f42f2edc71690d2f2a42349359f3bf7d"
+  integrity sha512-mRbgmAtQ4GAlKwuPnnAvXXwdPhEx+jkc0OBCLrXuD/CRvwNK3AxRSnqK4FSqmAMRRHryVJP8TopOvmEaA64fKw==
   dependencies:
     accepts "~1.3.4"
     base64id "1.0.0"
@@ -2916,18 +2991,15 @@ engine.io@~3.1.0:
     debug "~3.1.0"
     engine.io-parser "~2.1.0"
     ws "~3.3.1"
-  optionalDependencies:
-    uws "~9.14.0"
 
-enhanced-resolve@^3.4.0:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz#0421e339fd71419b3da13d129b3979040230476e"
-  integrity sha1-BCHjOf1xQZs9oT0Smzl5BAIwR24=
+enhanced-resolve@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-4.1.0.tgz#41c7e0bfdfe74ac1ffe1e57ad6a5c6c9f3742a7f"
+  integrity sha512-F/7vkyTtyc/llOIn8oWclcB25KdRaiPBpZYDgJHgh/UHtpgT2p2eldQgtQnLtUvfMKPKxbRaQM/hHkvLHt1Vng==
   dependencies:
     graceful-fs "^4.1.2"
     memory-fs "^0.4.0"
-    object-assign "^4.0.1"
-    tapable "^0.2.7"
+    tapable "^1.0.0"
 
 ent@~2.2.0:
   version "2.2.0"
@@ -2939,7 +3011,7 @@ entities@^1.1.1, entities@~1.1.1:
   resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.2.tgz#bdfa735299664dfafd34529ed4f8522a275fea56"
   integrity sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==
 
-errno@^0.1.3:
+errno@^0.1.3, errno@~0.1.7:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
   integrity sha512-MfrRBDWzIWifgq6tJj60gkAwtLNb6sQPlcFrSOflcP1aFmmruKQ2wRnze/8V6kgyz7H3FF8Npzv78mZ7XLLflg==
@@ -2973,36 +3045,6 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.2"
 
-es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
-  version "0.10.46"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.46.tgz#efd99f67c5a7ec789baa3daa7f79870388f7f572"
-  integrity sha512-24XxRvJXNFwEMpJb3nOkiRJKRoupmjYmOPVlI65Qy2SrtxwOTB+g6ODjBKOtwEHbYrhWRty9xxOWLNdClT2djw==
-  dependencies:
-    es6-iterator "~2.0.3"
-    es6-symbol "~3.1.1"
-    next-tick "1"
-
-es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
-  integrity sha1-p96IkUGgWpSwhUQDstCg+/qY87c=
-  dependencies:
-    d "1"
-    es5-ext "^0.10.35"
-    es6-symbol "^3.1.1"
-
-es6-map@^0.1.3:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
-  integrity sha1-kTbgUD3MBqMBaQ8LsU/042TpSfA=
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-set "~0.1.5"
-    es6-symbol "~3.1.1"
-    event-emitter "~0.3.5"
-
 es6-promise@^4.0.3, es6-promise@^4.1.0:
   version "4.2.5"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.5.tgz#da6d0d5692efb461e082c14817fe2427d8f5d054"
@@ -3015,35 +3057,6 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
-es6-set@~0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
-  integrity sha1-0rPsXU2ADO2BjbU40ol02wpzzLE=
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-symbol "3.1.1"
-    event-emitter "~0.3.5"
-
-es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
-  integrity sha1-vwDvT9q2uhtG7Le2KbTH7VcVzHc=
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
-es6-weak-map@^2.0.1:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
-  integrity sha1-XjqzIlH/0VOKH45f+hNXdy+S2W8=
-  dependencies:
-    d "1"
-    es5-ext "^0.10.14"
-    es6-iterator "^2.0.1"
-    es6-symbol "^3.1.1"
-
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -3078,16 +3091,6 @@ escodegen@1.x.x, escodegen@^1.8.1:
   optionalDependencies:
     source-map "~0.6.1"
 
-escope@^3.6.0:
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
-  integrity sha1-4Bl16BJ4GhY6ba392AOY3GTIicM=
-  dependencies:
-    es6-map "^0.1.3"
-    es6-weak-map "^2.0.1"
-    esrecurse "^4.1.0"
-    estraverse "^4.1.1"
-
 eslint-loader@^1.7.1:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/eslint-loader/-/eslint-loader-1.9.0.tgz#7e1be9feddca328d3dcfaef1ad49d5beffe83a13"
@@ -3141,6 +3144,14 @@ eslint-scope@^3.7.1:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-scope@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-4.0.0.tgz#50bf3071e9338bcdc43331794a0cb533f0136172"
+  integrity sha512-1G6UTDi7Jc1ELFwnR58HV4fK9OQK4S6N985f166xqXxpjU6plxFISJa2Ba9KCQuFa8RCnj/lSFJbHo7UFDBnUA==
+  dependencies:
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
 eslint-visitor-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
@@ -3252,14 +3263,6 @@ esutils@^2.0.2:
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
   integrity sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=
 
-event-emitter@~0.3.5:
-  version "0.3.5"
-  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
-  integrity sha1-34xp7vFkeSPHFXuc6DhAYQsCzDk=
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
 eventemitter3@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
@@ -3278,19 +3281,6 @@ evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
     md5.js "^1.3.4"
     safe-buffer "^5.1.1"
 
-execa@^0.7.0:
-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
-  integrity sha1-lEvs00zEHuMqY6n68nrVpl/Fl3c=
-  dependencies:
-    cross-spawn "^5.0.1"
-    get-stream "^3.0.0"
-    is-stream "^1.1.0"
-    npm-run-path "^2.0.0"
-    p-finally "^1.0.0"
-    signal-exit "^3.0.0"
-    strip-eof "^1.0.0"
-
 execa@^0.8.0:
   version "0.8.0"
   resolved "https://registry.yarnpkg.com/execa/-/execa-0.8.0.tgz#d8d76bbc1b55217ed190fd6dd49d3c774ecfc8da"
@@ -3650,12 +3640,13 @@ flow-remove-types-no-whitespace@^1.0.3:
     babylon "^6.8.4"
     magic-string "^0.16.0"
 
-follow-redirects@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.0.0.tgz#8e34298cbd2e176f254effec75a1c78cc849fd37"
-  integrity sha1-jjQpjL0uF28lTv/sdaHHjMhJ/Tc=
+flush-write-stream@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/flush-write-stream/-/flush-write-stream-1.0.3.tgz#c5d586ef38af6097650b49bc41b55fabb19f35bd"
+  integrity sha512-calZMC10u0FMUqoiunI2AiGIIUtUIvifNwkHhNupZH4cbNnW1Itkoh/Nf5HFYmDrwWPjrUxpkZT0KhuCq0jmGw==
   dependencies:
-    debug "^2.2.0"
+    inherits "^2.0.1"
+    readable-stream "^2.0.4"
 
 follow-redirects@^1.0.0:
   version "1.5.9"
@@ -3681,16 +3672,7 @@ forever-agent@~0.6.1:
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
   integrity sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=
 
-form-data@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.0.0.tgz#6f0aebadcc5da16c13e1ecc11137d85f9b883b25"
-  integrity sha1-bwrrrcxdoWwT4ezBETfYX5uIOyU=
-  dependencies:
-    asynckit "^0.4.0"
-    combined-stream "^1.0.5"
-    mime-types "^2.1.11"
-
-form-data@~2.3.0, form-data@~2.3.1, form-data@~2.3.2:
+form-data@~2.3.1, form-data@~2.3.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"
   integrity sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==
@@ -3706,6 +3688,14 @@ fragment-cache@^0.2.1:
   dependencies:
     map-cache "^0.2.2"
 
+from2@^2.1.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/from2/-/from2-2.3.0.tgz#8bfb5502bde4a4d36cfdeea007fcca21d7e382af"
+  integrity sha1-i/tVAr3kpNNs/e6gB/zKIdfjgq8=
+  dependencies:
+    inherits "^2.0.1"
+    readable-stream "^2.0.0"
+
 fs-access@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/fs-access/-/fs-access-1.0.1.tgz#d6a87f262271cefebec30c553407fb995da8777a"
@@ -3739,6 +3729,16 @@ fs-minipass@^1.2.5:
   dependencies:
     minipass "^2.2.1"
 
+fs-write-stream-atomic@^1.0.8:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz#b47df53493ef911df75731e70a9ded0189db40c9"
+  integrity sha1-tH31NJPvkR33VzHnCp3tAYnbQMk=
+  dependencies:
+    graceful-fs "^4.1.2"
+    iferr "^0.1.5"
+    imurmurhash "^0.1.4"
+    readable-stream "1 || 2"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
@@ -3784,25 +3784,6 @@ gauge@~2.7.3:
     strip-ansi "^3.0.1"
     wide-align "^1.1.0"
 
-generate-function@^2.0.0:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.3.1.tgz#f069617690c10c868e73b8465746764f97c3479f"
-  integrity sha512-eeB5GfMNeevm/GRYq20ShmsaGcmI81kIX2K9XQx5miC8KdHaC6Jm0qQ8ZNeGOi7wYB8OsdxKs+Y2oVuTFuVwKQ==
-  dependencies:
-    is-property "^1.0.2"
-
-generate-object-property@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/generate-object-property/-/generate-object-property-1.2.0.tgz#9c0e1c40308ce804f4783618b937fa88f99d50d0"
-  integrity sha1-nA4cQDCM6AT0eDYYuTf6iPmdUNA=
-  dependencies:
-    is-property "^1.0.0"
-
-get-caller-file@^1.0.1:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
-  integrity sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==
-
 get-own-enumerable-property-symbols@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-3.0.0.tgz#b877b49a5c16aefac3655f2ed2ea5b684df8d203"
@@ -3829,7 +3810,7 @@ get-stream@^3.0.0:
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
   integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
 
-get-uri@2, get-uri@^2.0.0:
+get-uri@2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/get-uri/-/get-uri-2.0.2.tgz#5c795e71326f6ca1286f2fc82575cd2bab2af578"
   integrity sha512-ZD325dMZOgerGqF/rF6vZXyFGTAay62svjQIT+X/oU2PtxYpFxvSkbsdi+oxIrsNxlZVd4y8wUDqkaExWTI/Cw==
@@ -4039,16 +4020,6 @@ har-schema@^2.0.0:
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
   integrity sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI=
 
-har-validator@~2.0.6:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-2.0.6.tgz#cdcbc08188265ad119b6a5a7c8ab70eecfb5d27d"
-  integrity sha1-zcvAgYgmWtEZtqWnyKtw7s+10n0=
-  dependencies:
-    chalk "^1.1.1"
-    commander "^2.9.0"
-    is-my-json-valid "^2.12.4"
-    pinkie-promise "^2.0.0"
-
 har-validator@~5.0.3:
   version "5.0.3"
   resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.0.3.tgz#ba402c266194f15956ef15e0fcf242993f6a7dfd"
@@ -4089,11 +4060,6 @@ has-flag@^1.0.0:
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
   integrity sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=
 
-has-flag@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
-  integrity sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=
-
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -4176,16 +4142,6 @@ hasha@^2.2.0:
     is-stream "^1.0.1"
     pinkie-promise "^2.0.0"
 
-hawk@~3.1.3:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/hawk/-/hawk-3.1.3.tgz#078444bd7c1640b0fe540d2c9b73d59678e8e1c4"
-  integrity sha1-B4REvXwWQLD+VA0sm3PVlnjo4cQ=
-  dependencies:
-    boom "2.x.x"
-    cryptiles "2.x.x"
-    hoek "2.x.x"
-    sntp "1.x.x"
-
 hawk@~6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/hawk/-/hawk-6.0.2.tgz#af4d914eb065f9b5ce4d9d11c1cb2126eecc3038"
@@ -4201,14 +4157,6 @@ he@^1.1.1:
   resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
   integrity sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==
 
-hipchat-notifier@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/hipchat-notifier/-/hipchat-notifier-1.1.0.tgz#b6d249755437c191082367799d3ba9a0f23b231e"
-  integrity sha1-ttJJdVQ3wZEII2d5nTupoPI7Ix4=
-  dependencies:
-    lodash "^4.0.0"
-    request "^2.0.0"
-
 hmac-drbg@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
@@ -4218,11 +4166,6 @@ hmac-drbg@^1.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.1"
 
-hoek@2.x.x:
-  version "2.16.3"
-  resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
-  integrity sha1-ILt0A9POo5jpHcRxCo/xuCdKJe0=
-
 hoek@4.x.x:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-4.2.1.tgz#9634502aa12c445dd5a7c5734b572bb8738aacbb"
@@ -4276,14 +4219,6 @@ http-proxy-agent@1:
     debug "2"
     extend "3"
 
-http-proxy-agent@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/http-proxy-agent/-/http-proxy-agent-2.1.0.tgz#e4821beef5b2142a2026bd73926fe537631c5405"
-  integrity sha512-qwHbBLV7WviBl0rQsOzH6o5lwyOIvwp/BdFnvVxXORldu5TmjFfjzBcWUWS5kWAZhmv+JtiDhSuQCp4sBfbIgg==
-  dependencies:
-    agent-base "4"
-    debug "3.1.0"
-
 http-proxy@^1.13.0, http-proxy@^1.8.1:
   version "1.17.0"
   resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.17.0.tgz#7ad38494658f84605e2f6db4436df410f4e5be9a"
@@ -4307,15 +4242,6 @@ http-server@^0.11.1:
     portfinder "^1.0.13"
     union "~0.4.3"
 
-http-signature@~1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
-  integrity sha1-33LiZwZs0Kxn+3at+OE0qPvPkb8=
-  dependencies:
-    assert-plus "^0.2.0"
-    jsprim "^1.2.2"
-    sshpk "^1.7.0"
-
 http-signature@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.2.0.tgz#9aecd925114772f3d95b65a60abb8f7c18fbace1"
@@ -4325,19 +4251,6 @@ http-signature@~1.2.0:
     jsprim "^1.2.2"
     sshpk "^1.7.0"
 
-httpntlm@1.6.1:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/httpntlm/-/httpntlm-1.6.1.tgz#ad01527143a2e8773cfae6a96f58656bb52a34b2"
-  integrity sha1-rQFScUOi6Hc8+uapb1hla7UqNLI=
-  dependencies:
-    httpreq ">=0.4.22"
-    underscore "~1.7.0"
-
-httpreq@>=0.4.22:
-  version "0.4.24"
-  resolved "https://registry.yarnpkg.com/httpreq/-/httpreq-0.4.24.tgz#4335ffd82cd969668a39465c929ac61d6393627f"
-  integrity sha1-QzX/2CzZaWaKOUZckprGHWOTYn8=
-
 https-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-1.0.0.tgz#ec06c10e0a34c0f2faf199f7fd7fc78fffd03c73"
@@ -4360,11 +4273,6 @@ https-proxy-agent@^2.2.1:
     agent-base "^4.1.0"
     debug "^3.1.0"
 
-iconv-lite@0.4.15:
-  version "0.4.15"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.15.tgz#fe265a218ac6a57cfe854927e9d04c19825eddeb"
-  integrity sha1-/iZaIYrGpXz+hUkn6dBMGYJe3es=
-
 iconv-lite@0.4.23:
   version "0.4.23"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
@@ -4384,6 +4292,11 @@ ieee754@^1.1.4:
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.12.tgz#50bf24e5b9c8bb98af4964c941cdb0918da7b60b"
   integrity sha512-GguP+DRY+pJ3soyIiGPTvdiVXjZ+DbXOxGpXn3eMvNW4x4irjqXm4wHKscC+TfxSJ0yw/S1F24tqdMNsMZTiLA==
 
+iferr@^0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/iferr/-/iferr-0.1.5.tgz#c60eed69e6d8fdb6b3104a1fcbca1c192dc5b501"
+  integrity sha1-xg7taebY/bazEEofy8ocGS3FtQE=
+
 ignore-walk@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.1.tgz#a83e62e7d272ac0e3b551aaa82831a19b69f82f8"
@@ -4418,16 +4331,6 @@ indexof@0.0.1:
   resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
   integrity sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=
 
-inflection@~1.12.0:
-  version "1.12.0"
-  resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.12.0.tgz#a200935656d6f5f6bc4dc7502e1aecb703228416"
-  integrity sha1-ogCTVlbW9fa8TcdQLhrstwMihBY=
-
-inflection@~1.3.0:
-  version "1.3.8"
-  resolved "https://registry.yarnpkg.com/inflection/-/inflection-1.3.8.tgz#cbd160da9f75b14c3cc63578d4f396784bf3014e"
-  integrity sha1-y9Fg2p91sUw8xjV41POWeEvzAU4=
-
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
@@ -4522,17 +4425,12 @@ invariant@^2.2.0, invariant@^2.2.2:
   dependencies:
     loose-envify "^1.0.0"
 
-invert-kv@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
-  integrity sha1-EEqOSqym09jNFXqO+L+rLXo//bY=
-
 ip@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.0.1.tgz#c7e356cdea225ae71b36d70f2e71a92ba4e42590"
   integrity sha1-x+NWzeoiWucbNtcPLnGpK6TkJZA=
 
-ip@^1.1.2, ip@^1.1.4, ip@^1.1.5:
+ip@^1.1.4:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"
   integrity sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=
@@ -4708,22 +4606,6 @@ is-module@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-module/-/is-module-1.0.0.tgz#3258fb69f78c14d5b815d664336b4cffb6441591"
   integrity sha1-Mlj7afeMFNW4FdZkM2tM/7ZEFZE=
 
-is-my-ip-valid@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-my-ip-valid/-/is-my-ip-valid-1.0.0.tgz#7b351b8e8edd4d3995d4d066680e664d94696824"
-  integrity sha512-gmh/eWXROncUzRnIa1Ubrt5b8ep/MGSnfAUI3aRp+sqTCs1tv1Isl8d8F6JmkN3dXKc3ehZMrtiPN9eL03NuaQ==
-
-is-my-json-valid@^2.12.4:
-  version "2.19.0"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.19.0.tgz#8fd6e40363cd06b963fa877d444bfb5eddc62175"
-  integrity sha512-mG0f/unGX1HZ5ep4uhRaPOS8EkAY8/j6mDRMJrutq4CqhoJWYp7qAlonIPy3TV7p3ju4TK9fo/PbnoksWmsp5Q==
-  dependencies:
-    generate-function "^2.0.0"
-    generate-object-property "^1.1.0"
-    is-my-ip-valid "^1.0.0"
-    jsonpointer "^4.0.0"
-    xtend "^4.0.0"
-
 is-number@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-0.1.1.tgz#69a7af116963d47206ec9bd9b48a14216f1e3806"
@@ -4806,11 +4688,6 @@ is-promise@^2.1.0:
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
   integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
 
-is-property@^1.0.0, is-property@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
-  integrity sha1-V/4cTkhHTt1lsJkR8msc1Ald2oQ=
-
 is-regex@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.4.tgz#5517489b547091b0930e095654ced25ee97e9491"
@@ -5021,12 +4898,7 @@ jsesc@~0.5.0:
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
   integrity sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=
 
-json-loader@^0.5.4:
-  version "0.5.7"
-  resolved "https://registry.yarnpkg.com/json-loader/-/json-loader-0.5.7.tgz#dca14a70235ff82f0ac9a3abeb60d337a365185d"
-  integrity sha512-QLPs8Dj7lnf3e3QYS1zkCo+4ZwqOiF9d/nZnYozTISxXWCfNs9yuky5rJw4/W34s7POaNlbZmQGaB5NiXCbP4w==
-
-json-parse-better-errors@^1.0.1:
+json-parse-better-errors@^1.0.1, json-parse-better-errors@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
   integrity sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==
@@ -5051,7 +4923,7 @@ json-stable-stringify-without-jsonify@^1.0.1:
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
   integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
 
-json-stringify-safe@5.0.x, json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
+json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
   integrity sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus=
@@ -5061,7 +4933,7 @@ json3@3.3.2:
   resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
   integrity sha1-PAQ0dD35Pi9cQq7nsZvLSDV19OE=
 
-json5@^0.5.0, json5@^0.5.1:
+json5@^0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
   integrity sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=
@@ -5078,11 +4950,6 @@ jsonparse@^1.2.0:
   resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
   integrity sha1-P02uSpH6wxX3EGL4UhzCOfE2YoA=
 
-jsonpointer@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
-  integrity sha1-T9kss04OnbPInIYi7PUfm5eMbLk=
-
 jsprim@^1.2.2:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
@@ -5161,22 +5028,21 @@ karma-sourcemap-loader@^0.3.7:
   dependencies:
     graceful-fs "^4.1.2"
 
-karma-webpack@^2.0.3:
-  version "2.0.13"
-  resolved "https://registry.yarnpkg.com/karma-webpack/-/karma-webpack-2.0.13.tgz#cf56e3056c15b7747a0bb2140fc9a6be41dd9f02"
-  integrity sha512-2cyII34jfrAabbI2+4Rk4j95Nazl98FvZQhgSiqKUDarT317rxfv/EdzZ60CyATN4PQxJdO5ucR5bOOXkEVrXw==
+karma-webpack@^4.0.0-rc.2:
+  version "4.0.0-rc.2"
+  resolved "https://registry.yarnpkg.com/karma-webpack/-/karma-webpack-4.0.0-rc.2.tgz#4c194e94789842af7f0ffa0de77ee7715739c7c1"
+  integrity sha512-Wuiq/xFBsbJMsHhYy5SYXxSp7Q0b8uzAG8+Siuo56ntoi5GluPE5LK3Mzl2UtD4k1leFwL6IeIE6Q+tk4F6k9Q==
   dependencies:
     async "^2.0.0"
-    babel-runtime "^6.0.0"
-    loader-utils "^1.0.0"
-    lodash "^4.0.0"
+    loader-utils "^1.1.0"
+    lodash "^4.17.10"
     source-map "^0.5.6"
-    webpack-dev-middleware "^1.12.0"
+    webpack-dev-middleware "^3.2.0"
 
-karma@^2.0.0:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/karma/-/karma-2.0.5.tgz#3710c7a2e71b1c439313f283846d88e04e4f918c"
-  integrity sha512-rECezBeY7mjzGUWhFlB7CvPHgkHJLXyUmWg+6vHCEsdWNUTnmiS6jRrIMcJEWgU2DUGZzGWG0bTRVky8fsDTOA==
+karma@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/karma/-/karma-3.1.1.tgz#94c8edd20fb9597ccde343326da009737fb0423a"
+  integrity sha512-NetT3wPCQMNB36uiL9LLyhrOt8SQwrEKt0xD3+KpTCfm0VxVyUJdPL5oTq2Ic5ouemgL/Iz4wqXEbF3zea9kQQ==
   dependencies:
     bluebird "^3.3.0"
     body-parser "^1.16.1"
@@ -5193,15 +5059,15 @@ karma@^2.0.0:
     http-proxy "^1.13.0"
     isbinaryfile "^3.0.0"
     lodash "^4.17.4"
-    log4js "^2.5.3"
-    mime "^1.3.4"
+    log4js "^3.0.0"
+    mime "^2.3.1"
     minimatch "^3.0.2"
     optimist "^0.6.1"
     qjobs "^1.1.4"
     range-parser "^1.2.0"
     rimraf "^2.6.0"
     safe-buffer "^5.0.1"
-    socket.io "2.0.4"
+    socket.io "2.1.1"
     source-map "^0.6.1"
     tmp "0.0.33"
     useragent "2.2.1"
@@ -5242,11 +5108,6 @@ klaw@^1.0.0:
   optionalDependencies:
     graceful-fs "^4.1.9"
 
-lazy-cache@^1.0.3:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
-  integrity sha1-odePw6UEdMuAhF07O24dpJpEbo4=
-
 lazystream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
@@ -5254,13 +5115,6 @@ lazystream@^1.0.0:
   dependencies:
     readable-stream "^2.0.5"
 
-lcid@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
-  integrity sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=
-  dependencies:
-    invert-kv "^1.0.0"
-
 leven@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
@@ -5274,25 +5128,6 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
-libbase64@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/libbase64/-/libbase64-0.1.0.tgz#62351a839563ac5ff5bd26f12f60e9830bb751e6"
-  integrity sha1-YjUag5VjrF/1vSbxL2Dpgwu3UeY=
-
-libmime@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/libmime/-/libmime-3.0.0.tgz#51a1a9e7448ecbd32cda54421675bb21bc093da6"
-  integrity sha1-UaGp50SOy9Ms2lRCFnW7IbwJPaY=
-  dependencies:
-    iconv-lite "0.4.15"
-    libbase64 "0.1.0"
-    libqp "1.1.0"
-
-libqp@1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/libqp/-/libqp-1.1.0.tgz#f5e6e06ad74b794fb5b5b66988bf728ef1dedbe8"
-  integrity sha1-9ebgatdLeU+1tbZpiL9yjvHe2+g=
-
 lint-staged@^7.0.0:
   version "7.3.0"
   resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.3.0.tgz#90ff33e5ca61ed3dbac35b6f6502dbefdc0db58d"
@@ -5376,16 +5211,6 @@ load-json-file@^1.0.0:
     pinkie-promise "^2.0.0"
     strip-bom "^2.0.0"
 
-load-json-file@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
-  integrity sha1-eUfkIUmvgNaWy/eXvKq8/h/inKg=
-  dependencies:
-    graceful-fs "^4.1.2"
-    parse-json "^2.2.0"
-    pify "^2.0.0"
-    strip-bom "^3.0.0"
-
 load-json-file@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-4.0.0.tgz#2f5f45ab91e33216234fd53adab668eb4ec0993b"
@@ -5409,7 +5234,7 @@ loader-runner@^2.3.0:
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.1.tgz#026f12fe7c3115992896ac02ba022ba92971b979"
   integrity sha512-By6ZFY7ETWOc9RFaAIb23IjJVcM4dvJC/N57nmdz9RSkMXvAXGI7SyVlAw3v8vjtDRlqThgVDVmTnr9fqMlxkw==
 
-loader-utils@^1.0.0, loader-utils@^1.0.2, loader-utils@^1.1.0:
+loader-utils@^1.0.2, loader-utils@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
   integrity sha1-yYrvSIvM7aL/teLeZG1qdUQp9c0=
@@ -5618,7 +5443,7 @@ lodash@4.17.5:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
   integrity sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw==
 
-lodash@^4.0.0, lodash@^4.0.1, lodash@^4.15.0, lodash@^4.16.6, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
+lodash@^4.0.1, lodash@^4.16.6, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
@@ -5645,34 +5470,16 @@ log-update@^1.0.2:
     ansi-escapes "^1.0.0"
     cli-cursor "^1.0.2"
 
-log4js@^2.5.3:
-  version "2.11.0"
-  resolved "https://registry.yarnpkg.com/log4js/-/log4js-2.11.0.tgz#bf3902eff65c6923d9ce9cfbd2db54160e34005a"
-  integrity sha512-z1XdwyGFg8/WGkOyF6DPJjivCWNLKrklGdViywdYnSKOvgtEBo2UyEMZS5sD2mZrQlU3TvO8wDWLc8mzE1ncBQ==
+log4js@^3.0.0:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/log4js/-/log4js-3.0.6.tgz#e6caced94967eeeb9ce399f9f8682a4b2b28c8ff"
+  integrity sha512-ezXZk6oPJCWL483zj64pNkMuY/NcRX5MPiB0zE6tjZM137aeusrOnW1ecxgF9cmwMWkBMhjteQxBPoZBh9FDxQ==
   dependencies:
-    circular-json "^0.5.4"
+    circular-json "^0.5.5"
     date-format "^1.2.0"
     debug "^3.1.0"
-    semver "^5.5.0"
+    rfdc "^1.1.2"
     streamroller "0.7.0"
-  optionalDependencies:
-    amqplib "^0.5.2"
-    axios "^0.15.3"
-    hipchat-notifier "^1.1.0"
-    loggly "^1.1.0"
-    mailgun-js "^0.18.0"
-    nodemailer "^2.5.0"
-    redis "^2.7.1"
-    slack-node "~0.2.0"
-
-loggly@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/loggly/-/loggly-1.1.1.tgz#0a0fc1d3fa3a5ec44fdc7b897beba2a4695cebee"
-  integrity sha1-Cg/B0/o6XsRP3HuJe+uipGlc6+4=
-  dependencies:
-    json-stringify-safe "5.0.x"
-    request "2.75.x"
-    timespan "2.3.x"
 
 longest@^1.0.1:
   version "1.0.1"
@@ -5699,7 +5506,7 @@ lru-cache@2.2.x:
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.2.4.tgz#6c658619becf14031d0d0b594b16042ce4dc063d"
   integrity sha1-bGWGGb7PFAMdDQtZSxYELOTcBj0=
 
-lru-cache@^4.0.1, lru-cache@^4.1.1, lru-cache@^4.1.2:
+lru-cache@^4.0.1, lru-cache@^4.1.1:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
   integrity sha512-fFEhvcgzuIoJVUF8fYr5KR0YqxD238zgObTps31YdADwPPAp82a4M8TrckkWyx7ekNlf9aBcVn81cFwwXngrJA==
@@ -5726,29 +5533,6 @@ magic-string@^0.25.1:
   dependencies:
     sourcemap-codec "^1.4.1"
 
-mailcomposer@4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/mailcomposer/-/mailcomposer-4.0.1.tgz#0e1c44b2a07cf740ee17dc149ba009f19cadfeb4"
-  integrity sha1-DhxEsqB890DuF9wUm6AJ8Zyt/rQ=
-  dependencies:
-    buildmail "4.0.1"
-    libmime "3.0.0"
-
-mailgun-js@^0.18.0:
-  version "0.18.1"
-  resolved "https://registry.yarnpkg.com/mailgun-js/-/mailgun-js-0.18.1.tgz#ee39aa18d7bb598a5ce9ede84afb681defc8a6b0"
-  integrity sha512-lvuMP14u24HS2uBsJEnzSyPMxzU2b99tQsIx1o6QNjqxjk8b3WvR+vq5oG1mjqz/IBYo+5gF+uSoDS0RkMVHmg==
-  dependencies:
-    async "~2.6.0"
-    debug "~3.1.0"
-    form-data "~2.3.0"
-    inflection "~1.12.0"
-    is-stream "^1.1.0"
-    path-proxy "~1.0.0"
-    promisify-call "^2.0.2"
-    proxy-agent "~3.0.0"
-    tsscmp "~1.0.0"
-
 make-dir@^1.0.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.3.0.tgz#79c1033b80515bd6d24ec9933e860ca75ee27f0c"
@@ -5797,13 +5581,6 @@ media-typer@0.3.0:
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
-mem@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
-  integrity sha1-Xt1StIXKHZAP5kiVUFOZoN+kX3Y=
-  dependencies:
-    mimic-fn "^1.0.0"
-
 memory-fs@^0.4.0, memory-fs@~0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
@@ -5899,18 +5676,23 @@ mime-db@~1.37.0:
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.37.0.tgz#0b6a0ce6fdbe9576e25f1f2d2fde8830dc0ad0d8"
   integrity sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==
 
-mime-types@^2.1.11, mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19, mime-types@~2.1.7:
+mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19:
   version "2.1.21"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.21.tgz#28995aa1ecb770742fe6ae7e58f9181c744b3f96"
   integrity sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==
   dependencies:
     mime-db "~1.37.0"
 
-mime@^1.3.4, mime@^1.5.0, mime@^1.6.0:
+mime@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
   integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
 
+mime@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-2.3.1.tgz#b1621c54d63b97c47d3cfe7f7215f7d64517c369"
+  integrity sha512-OEUllcVoydBHGN1z84yfQDimn58pZNNNXgZlHXSboxMlFvgI6MXSWpWKpFRra7H1HxpVhHTkrghfRW49k6yjeg==
+
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
@@ -5978,6 +5760,22 @@ minizlib@^1.1.0:
   dependencies:
     minipass "^2.2.1"
 
+mississippi@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-2.0.0.tgz#3442a508fafc28500486feea99409676e4ee5a6f"
+  integrity sha512-zHo8v+otD1J10j/tC+VNoGK9keCuByhKovAvdn74dmxJl9+mWHnx6EMsDN4lgRoMI/eYo2nchAxniIbUPb5onw==
+  dependencies:
+    concat-stream "^1.5.0"
+    duplexify "^3.4.2"
+    end-of-stream "^1.1.0"
+    flush-write-stream "^1.0.0"
+    from2 "^2.1.0"
+    parallel-transform "^1.1.0"
+    pump "^2.0.1"
+    pumpify "^1.3.3"
+    stream-each "^1.1.0"
+    through2 "^2.0.0"
+
 mixin-deep@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
@@ -6020,6 +5818,18 @@ modify-values@^1.0.0:
   resolved "https://registry.yarnpkg.com/modify-values/-/modify-values-1.0.1.tgz#b3939fa605546474e3e3e3c63d64bd43b4ee6022"
   integrity sha512-xV2bxeN6F7oYjZWTe/YPAy6MN2M+sL4u/Rlm2AHCIVGfo2p1yGmBHQ6vHehl4bRTZBdHu3TSkWdYgkwpYzAGSw==
 
+move-concurrently@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/move-concurrently/-/move-concurrently-1.0.1.tgz#be2c005fda32e0b29af1f05d7c4b33214c701f92"
+  integrity sha1-viwAX9oy4LKa8fBdfEszIUxwH5I=
+  dependencies:
+    aproba "^1.1.1"
+    copy-concurrently "^1.0.0"
+    fs-write-stream-atomic "^1.0.8"
+    mkdirp "^0.5.1"
+    rimraf "^2.5.4"
+    run-queue "^1.0.3"
+
 ms@0.7.1:
   version "0.7.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
@@ -6091,16 +5901,11 @@ neo-async@^2.5.0:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.0.tgz#b9d15e4d71c6762908654b5183ed38b753340835"
   integrity sha512-MFh0d/Wa7vkKO3Y3LlacqAEeHK0mckVqzDieUKTT+KGxi+zIpeVsFxymkIiRpbpDziHc290Xr9A1O4Om7otoRA==
 
-netmask@^1.0.6, netmask@~1.0.4:
+netmask@~1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/netmask/-/netmask-1.0.6.tgz#20297e89d86f6f6400f250d9f4f6b4c1945fcd35"
   integrity sha1-ICl+idhvb2QA8lDZ9Pa0wZRfzTU=
 
-next-tick@1:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
-  integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
-
 nightwatch-helpers@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/nightwatch-helpers/-/nightwatch-helpers-1.2.0.tgz#cdefeb7635074a141825a7b6d1b955b6d7810a0f"
@@ -6187,67 +5992,6 @@ node-releases@^1.0.0-alpha.14:
   dependencies:
     semver "^5.3.0"
 
-node-uuid@~1.4.7:
-  version "1.4.8"
-  resolved "https://registry.yarnpkg.com/node-uuid/-/node-uuid-1.4.8.tgz#b040eb0923968afabf8d32fb1f17f1167fdab907"
-  integrity sha1-sEDrCSOWivq/jTL7HxfxFn/auQc=
-
-nodemailer-direct-transport@3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/nodemailer-direct-transport/-/nodemailer-direct-transport-3.3.2.tgz#e96fafb90358560947e569017d97e60738a50a86"
-  integrity sha1-6W+vuQNYVglH5WkBfZfmBzilCoY=
-  dependencies:
-    nodemailer-shared "1.1.0"
-    smtp-connection "2.12.0"
-
-nodemailer-fetch@1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/nodemailer-fetch/-/nodemailer-fetch-1.6.0.tgz#79c4908a1c0f5f375b73fe888da9828f6dc963a4"
-  integrity sha1-ecSQihwPXzdbc/6IjamCj23JY6Q=
-
-nodemailer-shared@1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/nodemailer-shared/-/nodemailer-shared-1.1.0.tgz#cf5994e2fd268d00f5cf0fa767a08169edb07ec0"
-  integrity sha1-z1mU4v0mjQD1zw+nZ6CBae2wfsA=
-  dependencies:
-    nodemailer-fetch "1.6.0"
-
-nodemailer-smtp-pool@2.8.2:
-  version "2.8.2"
-  resolved "https://registry.yarnpkg.com/nodemailer-smtp-pool/-/nodemailer-smtp-pool-2.8.2.tgz#2eb94d6cf85780b1b4725ce853b9cbd5e8da8c72"
-  integrity sha1-LrlNbPhXgLG0clzoU7nL1ejajHI=
-  dependencies:
-    nodemailer-shared "1.1.0"
-    nodemailer-wellknown "0.1.10"
-    smtp-connection "2.12.0"
-
-nodemailer-smtp-transport@2.7.2:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/nodemailer-smtp-transport/-/nodemailer-smtp-transport-2.7.2.tgz#03d71c76314f14ac7dbc7bf033a6a6d16d67fb77"
-  integrity sha1-A9ccdjFPFKx9vHvwM6am0W1n+3c=
-  dependencies:
-    nodemailer-shared "1.1.0"
-    nodemailer-wellknown "0.1.10"
-    smtp-connection "2.12.0"
-
-nodemailer-wellknown@0.1.10:
-  version "0.1.10"
-  resolved "https://registry.yarnpkg.com/nodemailer-wellknown/-/nodemailer-wellknown-0.1.10.tgz#586db8101db30cb4438eb546737a41aad0cf13d5"
-  integrity sha1-WG24EB2zDLRDjrVGc3pBqtDPE9U=
-
-nodemailer@^2.5.0:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-2.7.2.tgz#f242e649aeeae39b6c7ed740ef7b061c404d30f9"
-  integrity sha1-8kLmSa7q45tsftdA73sGHEBNMPk=
-  dependencies:
-    libmime "3.0.0"
-    mailcomposer "4.0.1"
-    nodemailer-direct-transport "3.3.2"
-    nodemailer-shared "1.1.0"
-    nodemailer-smtp-pool "2.8.2"
-    nodemailer-smtp-transport "2.7.2"
-    socks "1.1.9"
-
 nopt@3.x:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
@@ -6341,7 +6085,7 @@ number-is-nan@^1.0.0:
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
   integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
 
-oauth-sign@~0.8.1, oauth-sign@~0.8.2:
+oauth-sign@~0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
   integrity sha1-Rqarfwrq2N6unsBWV4C31O/rnUM=
@@ -6417,7 +6161,7 @@ on-finished@~2.3.0:
   dependencies:
     ee-first "1.1.1"
 
-once@1.x, once@^1.3.0, once@^1.4.0:
+once@1.x, once@^1.3.0, once@^1.3.1, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
@@ -6491,15 +6235,6 @@ os-homedir@^1.0.0, os-homedir@^1.0.1:
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
   integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
 
-os-locale@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
-  integrity sha512-3sslG3zJbEYcaC4YVAvDorjGxc7tv6KVATnLPZONiljsUncvihe9BQoVCEs0RZ1kmf4Hk9OBqlZfJZWI4GanKA==
-  dependencies:
-    execa "^0.7.0"
-    lcid "^1.0.0"
-    mem "^1.1.0"
-
 os-shim@^0.1.2:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/os-shim/-/os-shim-0.1.3.tgz#6b62c3791cf7909ea35ed46e17658bb417cb3917"
@@ -6581,31 +6316,6 @@ pac-proxy-agent@1:
     raw-body "2"
     socks-proxy-agent "2"
 
-pac-proxy-agent@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/pac-proxy-agent/-/pac-proxy-agent-3.0.0.tgz#11d578b72a164ad74bf9d5bac9ff462a38282432"
-  integrity sha512-AOUX9jES/EkQX2zRz0AW7lSx9jD//hQS8wFXBvcnd/J2Py9KaMJMqV/LPqJssj1tgGufotb2mmopGPR15ODv1Q==
-  dependencies:
-    agent-base "^4.2.0"
-    debug "^3.1.0"
-    get-uri "^2.0.0"
-    http-proxy-agent "^2.1.0"
-    https-proxy-agent "^2.2.1"
-    pac-resolver "^3.0.0"
-    raw-body "^2.2.0"
-    socks-proxy-agent "^4.0.1"
-
-pac-resolver@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/pac-resolver/-/pac-resolver-3.0.0.tgz#6aea30787db0a891704deb7800a722a7615a6f26"
-  integrity sha512-tcc38bsjuE3XZ5+4vP96OfhOugrX+JcnpUbhfuc4LuXBLQhoTthOstZeoQJBDnQUDYzYmdImKsbz0xSl1/9qeA==
-  dependencies:
-    co "^4.6.0"
-    degenerator "^1.0.4"
-    ip "^1.1.5"
-    netmask "^1.0.6"
-    thunkify "^2.1.2"
-
 pac-resolver@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/pac-resolver/-/pac-resolver-2.0.0.tgz#99b88d2f193fbdeefc1c9a529c1f3260ab5277cd"
@@ -6629,6 +6339,15 @@ pako@~1.0.5:
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
   integrity sha512-lQe48YPsMJAig+yngZ87Lus+NF+3mtu7DVOBu6b/gHO1YpKwIj5AWjZ/TOS7i46HD/UixzWb1zeWDZfGZ3iYcg==
 
+parallel-transform@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/parallel-transform/-/parallel-transform-1.1.0.tgz#d410f065b05da23081fcd10f28854c29bda33b06"
+  integrity sha1-1BDwZbBdojCB/NEPKIVMKb2jOwY=
+  dependencies:
+    cyclist "~0.2.2"
+    inherits "^2.0.3"
+    readable-stream "^2.1.5"
+
 parse-asn1@^5.0.0:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
@@ -6741,13 +6460,6 @@ path-parse@^1.0.5:
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
   integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
 
-path-proxy@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/path-proxy/-/path-proxy-1.0.0.tgz#18e8a36859fc9d2f1a53b48dee138543c020de5e"
-  integrity sha1-GOijaFn8nS8aU7SN7hOFQ8Ag3l4=
-  dependencies:
-    inflection "~1.3.0"
-
 path-type@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
@@ -6757,13 +6469,6 @@ path-type@^1.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-path-type@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
-  integrity sha1-8BLMuEFbcJb8LaoQVMPXI4lZTHM=
-  dependencies:
-    pify "^2.0.0"
-
 path-type@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-3.0.0.tgz#cef31dc8e0a1a3bb0d105c0cd97cf3bf47f4e36f"
@@ -6899,11 +6604,6 @@ private@^0.1.6:
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
   integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
 
-process-nextick-args@~1.0.6:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
-  integrity sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=
-
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -6924,12 +6624,10 @@ progress@^2.0.0:
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.1.tgz#c9242169342b1c29d275889c95734621b1952e31"
   integrity sha512-OE+a6vzqazc+K6LxJrX5UPyKFvGnL5CYmq2jFGNIBWHpc4QyE49/YOumcrpQFJpfejmvRtbJzgO1zPmMCqlbBg==
 
-promisify-call@^2.0.2:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/promisify-call/-/promisify-call-2.0.4.tgz#d48c2d45652ccccd52801ddecbd533a6d4bd5fba"
-  integrity sha1-1IwtRWUszM1SgB3ey9UzptS9X7o=
-  dependencies:
-    with-callback "^1.0.2"
+promise-inflight@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/promise-inflight/-/promise-inflight-1.0.1.tgz#98472870bf228132fcbdd868129bad12c3c029e3"
+  integrity sha1-mEcocL8igTL8vdhoEputEsPAKeM=
 
 proxy-agent@2.0.0:
   version "2.0.0"
@@ -6945,25 +6643,6 @@ proxy-agent@2.0.0:
     pac-proxy-agent "1"
     socks-proxy-agent "2"
 
-proxy-agent@~3.0.0:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/proxy-agent/-/proxy-agent-3.0.3.tgz#1c1a33db60ef5f2e9e35b876fd63c2bc681c611d"
-  integrity sha512-PXVVVuH9tiQuxQltFJVSnXWuDtNr+8aNBP6XVDDCDiUuDN8eRCm+ii4/mFWmXWEA0w8jjJSlePa4LXlM4jIzNA==
-  dependencies:
-    agent-base "^4.2.0"
-    debug "^3.1.0"
-    http-proxy-agent "^2.1.0"
-    https-proxy-agent "^2.2.1"
-    lru-cache "^4.1.2"
-    pac-proxy-agent "^3.0.0"
-    proxy-from-env "^1.0.0"
-    socks-proxy-agent "^4.0.1"
-
-proxy-from-env@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.0.0.tgz#33c50398f70ea7eb96d21f7b817630a55791c7ee"
-  integrity sha1-M8UDmPcOp+uW0h97gXYwpVeRx+4=
-
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
@@ -6991,12 +6670,29 @@ public-encrypt@^4.0.0:
     randombytes "^2.0.1"
     safe-buffer "^5.1.2"
 
+pump@^2.0.0, pump@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-2.0.1.tgz#12399add6e4cf7526d973cbc8b5ce2e2908b3909"
+  integrity sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
+pumpify@^1.3.3:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/pumpify/-/pumpify-1.5.1.tgz#36513be246ab27570b1a374a5ce278bfd74370ce"
+  integrity sha512-oClZI37HvuUJJxSKKrC17bZ9Cu0ZYhEAGPsPUy9KlMUmv9dKX2o77RUmq7f3XjIxbwyGwYzbzQ1L2Ks8sIradQ==
+  dependencies:
+    duplexify "^3.6.0"
+    inherits "^2.0.3"
+    pump "^2.0.0"
+
 punycode@1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
   integrity sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0=
 
-punycode@1.4.1, punycode@^1.2.4, punycode@^1.4.1:
+punycode@^1.2.4, punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
   integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
@@ -7031,11 +6727,6 @@ qs@~2.3.3:
   resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
   integrity sha1-6eha2+ddoLvkyOBHaghikPhjtAQ=
 
-qs@~6.2.0:
-  version "6.2.3"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.3.tgz#1cfcb25c10a9b2b483053ff39f5dfc9233908cfe"
-  integrity sha1-HPyyXBCpsrSDBT/zn138kjOQjP4=
-
 querystring-es3@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
@@ -7080,7 +6771,7 @@ range-parser@^1.0.3, range-parser@^1.2.0:
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
   integrity sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=
 
-raw-body@2, raw-body@2.3.3, raw-body@^2.2.0:
+raw-body@2, raw-body@2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
   integrity sha512-9esiElv1BrZoI3rCDuOuKCBRbuApGGaDPQfjSflGxdy4oyzqghxu6klEkkVIvBje+FF0BX9coEv8KqW6X/7njw==
@@ -7108,14 +6799,6 @@ read-pkg-up@^1.0.1:
     find-up "^1.0.0"
     read-pkg "^1.0.0"
 
-read-pkg-up@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-2.0.0.tgz#6b72a8048984e0c41e79510fd5e9fa99b3b549be"
-  integrity sha1-a3KoBImE4MQeeVEP1en6mbO1Sb4=
-  dependencies:
-    find-up "^2.0.0"
-    read-pkg "^2.0.0"
-
 read-pkg-up@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-3.0.0.tgz#3ed496685dba0f8fe118d0691dc51f4a1ff96f07"
@@ -7141,15 +6824,6 @@ read-pkg@^1.0.0, read-pkg@^1.1.0:
     normalize-package-data "^2.3.2"
     path-type "^1.0.0"
 
-read-pkg@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-2.0.0.tgz#8ef1c0623c6a6db0dc6713c4bfac46332b2368f8"
-  integrity sha1-jvHAYjxqbbDcZxPEv6xGMysjaPg=
-  dependencies:
-    load-json-file "^2.0.0"
-    normalize-package-data "^2.3.2"
-    path-type "^2.0.0"
-
 read-pkg@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-3.0.0.tgz#9cbc686978fee65d16c00e2b19c237fcf6e38389"
@@ -7159,17 +6833,7 @@ read-pkg@^3.0.0:
     normalize-package-data "^2.3.2"
     path-type "^3.0.0"
 
-readable-stream@1.1.x, "readable-stream@1.x >=1.1.9":
-  version "1.1.14"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
-  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
-readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6:
+"readable-stream@1 || 2", readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -7182,6 +6846,16 @@ readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stre
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
+readable-stream@1.1.x:
+  version "1.1.14"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
+  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
 readable-stream@^3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.0.6.tgz#351302e4c68b5abd6a2ed55376a7f9a25be3057a"
@@ -7191,18 +6865,6 @@ readable-stream@^3.0.6:
     string_decoder "^1.1.1"
     util-deprecate "^1.0.1"
 
-readable-stream@~2.0.5:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
-  integrity sha1-j5A0HmilPMySh4jaz80Rs265t44=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "~1.0.0"
-    process-nextick-args "~1.0.6"
-    string_decoder "~0.10.x"
-    util-deprecate "~1.0.1"
-
 readdirp@^2.0.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.2.1.tgz#0e87622a3325aa33e892285caf8b4e846529a525"
@@ -7235,25 +6897,6 @@ redent@^2.0.0:
     indent-string "^3.0.0"
     strip-indent "^2.0.0"
 
-redis-commands@^1.2.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/redis-commands/-/redis-commands-1.4.0.tgz#52f9cf99153efcce56a8f86af986bd04e988602f"
-  integrity sha512-cu8EF+MtkwI4DLIT0x9P8qNTLFhQD4jLfxLR0cCNkeGzs87FN6879JOJwNQR/1zD7aSYNbU0hgsV9zGY71Itvw==
-
-redis-parser@^2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/redis-parser/-/redis-parser-2.6.0.tgz#52ed09dacac108f1a631c07e9b69941e7a19504b"
-  integrity sha1-Uu0J2srBCPGmMcB+m2mUHnoZUEs=
-
-redis@^2.7.1:
-  version "2.8.0"
-  resolved "https://registry.yarnpkg.com/redis/-/redis-2.8.0.tgz#202288e3f58c49f6079d97af7a10e1303ae14b02"
-  integrity sha512-M1OkonEQwtRmZv4tEWF2VgpG0JWJ8Fv1PhlgT5+B+uNq2cA3Rt1Yt/ryoR+vQNOQcIEgdCdfH0jr3bDpihAw1A==
-  dependencies:
-    double-ended-queue "^2.1.0-0"
-    redis-commands "^1.2.0"
-    redis-parser "^2.6.0"
-
 regenerate-unicode-properties@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/regenerate-unicode-properties/-/regenerate-unicode-properties-7.0.0.tgz#107405afcc4a190ec5ed450ecaa00ed0cafa7a4c"
@@ -7361,33 +7004,6 @@ request-progress@^2.0.1:
   dependencies:
     throttleit "^1.0.0"
 
-request@2.75.x:
-  version "2.75.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.75.0.tgz#d2b8268a286da13eaa5d01adf5d18cc90f657d93"
-  integrity sha1-0rgmiihtoT6qXQGt9dGMyQ9lfZM=
-  dependencies:
-    aws-sign2 "~0.6.0"
-    aws4 "^1.2.1"
-    bl "~1.1.2"
-    caseless "~0.11.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.0"
-    forever-agent "~0.6.1"
-    form-data "~2.0.0"
-    har-validator "~2.0.6"
-    hawk "~3.1.3"
-    http-signature "~1.1.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.7"
-    node-uuid "~1.4.7"
-    oauth-sign "~0.8.1"
-    qs "~6.2.0"
-    stringstream "~0.0.4"
-    tough-cookie "~2.3.0"
-    tunnel-agent "~0.4.1"
-
 request@2.85.0:
   version "2.85.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.85.0.tgz#5a03615a47c61420b3eb99b7dba204f83603e1fa"
@@ -7416,7 +7032,7 @@ request@2.85.0:
     tunnel-agent "^0.6.0"
     uuid "^3.1.0"
 
-request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.87.0:
+request@^2.81.0, request@^2.87.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
@@ -7442,21 +7058,6 @@ request@^2.0.0, request@^2.74.0, request@^2.81.0, request@^2.87.0:
     tunnel-agent "^0.6.0"
     uuid "^3.3.2"
 
-requestretry@^1.2.2:
-  version "1.13.0"
-  resolved "https://registry.yarnpkg.com/requestretry/-/requestretry-1.13.0.tgz#213ec1006eeb750e8b8ce54176283d15a8d55d94"
-  integrity sha512-Lmh9qMvnQXADGAQxsXHP4rbgO6pffCfuR8XUBdP9aitJcLQJxhp7YZK4xAVYXnPJ5E52mwrfiKQtKonPL8xsmg==
-  dependencies:
-    extend "^3.0.0"
-    lodash "^4.15.0"
-    request "^2.74.0"
-    when "^3.7.7"
-
-require-directory@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
-  integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
-
 require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
@@ -7526,19 +7127,17 @@ ret@~0.1.10:
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
   integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
 
-right-align@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
-  integrity sha1-YTObci/mo1FWiSENJOFMlhSGE+8=
-  dependencies:
-    align-text "^0.1.1"
+rfdc@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/rfdc/-/rfdc-1.1.2.tgz#e6e72d74f5dc39de8f538f65e00c36c18018e349"
+  integrity sha512-92ktAgvZhBzYTIK0Mja9uen5q5J3NRVMoDkJL2VMwq6SXjVCgqvQeVP2XAaUY6HT+XpQYeLSjb3UoitBryKmdA==
 
 right-pad@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
   integrity sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=
 
-rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1:
+rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1, rimraf@^2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==
@@ -7643,6 +7242,13 @@ run-async@^2.2.0:
   dependencies:
     is-promise "^2.1.0"
 
+run-queue@^1.0.0, run-queue@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/run-queue/-/run-queue-1.0.3.tgz#e848396f057d223f24386924618e25694161ec47"
+  integrity sha1-6Eg5bwV9Ij8kOGkkYY4laUFh7Ec=
+  dependencies:
+    aproba "^1.1.1"
+
 rx-lite-aggregates@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
@@ -7707,7 +7313,7 @@ sax@^1.2.4:
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
-schema-utils@^0.4.5:
+schema-utils@^0.4.4, schema-utils@^0.4.5:
   version "0.4.7"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.7.tgz#ba74f597d2be2ea880131746ee17d0a093c68187"
   integrity sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==
@@ -7735,12 +7341,12 @@ semver@~5.0.1:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.0.3.tgz#77466de589cd5d3c95f138aa78bc569a3cb5d27a"
   integrity sha1-d0Zt5YnNXTyV8TiqeLxWmjy10no=
 
-serialize-javascript@^1.3.0:
+serialize-javascript@^1.3.0, serialize-javascript@^1.4.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.5.0.tgz#1aa336162c88a890ddad5384baebc93a655161fe"
   integrity sha512-Ga8c8NjAAp46Br4+0oZ2WxJCwIzwP60Gq1YPgU+39PiTVxyed/iKE/zyZI6+UlVYH5Q4PaQdHhcegIFPZTUfoQ==
 
-set-blocking@^2.0.0, set-blocking@~2.0.0:
+set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
   integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
@@ -7818,13 +7424,6 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
-slack-node@~0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/slack-node/-/slack-node-0.2.0.tgz#de4b8dddaa8b793f61dbd2938104fdabf37dfa30"
-  integrity sha1-3kuN3aqLeT9h29KTgQT9q/N9+jA=
-  dependencies:
-    requestretry "^1.2.2"
-
 slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
@@ -7842,24 +7441,11 @@ slice-ansi@1.0.0:
   dependencies:
     is-fullwidth-code-point "^2.0.0"
 
-smart-buffer@^1.0.13, smart-buffer@^1.0.4:
+smart-buffer@^1.0.13:
   version "1.1.15"
   resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-1.1.15.tgz#7f114b5b65fab3e2a35aa775bb12f0d1c649bf16"
   integrity sha1-fxFLW2X6s+KjWqd1uxLw0cZJvxY=
 
-smart-buffer@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/smart-buffer/-/smart-buffer-4.0.1.tgz#07ea1ca8d4db24eb4cac86537d7d18995221ace3"
-  integrity sha512-RFqinRVJVcCAL9Uh1oVqE6FZkqsyLiVOYEZ20TqIOjuX7iFVJ+zsbs4RIghnw/pTs7mZvt8ZHhvm1ZUrR4fykg==
-
-smtp-connection@2.12.0:
-  version "2.12.0"
-  resolved "https://registry.yarnpkg.com/smtp-connection/-/smtp-connection-2.12.0.tgz#d76ef9127cb23c2259edb1e8349c2e8d5e2d74c1"
-  integrity sha1-1275EnyyPCJZ7bHoNJwujV4tdME=
-  dependencies:
-    httpntlm "1.6.1"
-    nodemailer-shared "1.1.0"
-
 snapdragon-node@^2.0.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
@@ -7890,13 +7476,6 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
-sntp@1.x.x:
-  version "1.0.9"
-  resolved "https://registry.yarnpkg.com/sntp/-/sntp-1.0.9.tgz#6541184cc90aeea6c6e7b35e2659082443c66198"
-  integrity sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg=
-  dependencies:
-    hoek "2.x.x"
-
 sntp@2.x.x:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/sntp/-/sntp-2.1.0.tgz#2c6cec14fedc2222739caf9b5c3d85d1cc5a2cc8"
@@ -7909,45 +7488,46 @@ socket.io-adapter@~1.1.0:
   resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz#2a805e8a14d6372124dd9159ad4502f8cb07f06b"
   integrity sha1-KoBeihTWNyEk3ZFZrUUC+MsH8Gs=
 
-socket.io-client@2.0.4:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.0.4.tgz#0918a552406dc5e540b380dcd97afc4a64332f8e"
-  integrity sha1-CRilUkBtxeVAs4Dc2Xr8SmQzL44=
+socket.io-client@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.1.1.tgz#dcb38103436ab4578ddb026638ae2f21b623671f"
+  integrity sha512-jxnFyhAuFxYfjqIgduQlhzqTcOEQSn+OHKVfAxWaNWa7ecP7xSNk2Dx/3UEsDcY7NcFafxvNvKPmmO7HTwTxGQ==
   dependencies:
     backo2 "1.0.2"
     base64-arraybuffer "0.1.5"
     component-bind "1.0.0"
     component-emitter "1.2.1"
-    debug "~2.6.4"
-    engine.io-client "~3.1.0"
+    debug "~3.1.0"
+    engine.io-client "~3.2.0"
+    has-binary2 "~1.0.2"
     has-cors "1.1.0"
     indexof "0.0.1"
     object-component "0.0.3"
     parseqs "0.0.5"
     parseuri "0.0.5"
-    socket.io-parser "~3.1.1"
+    socket.io-parser "~3.2.0"
     to-array "0.1.4"
 
-socket.io-parser@~3.1.1:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-3.1.3.tgz#ed2da5ee79f10955036e3da413bfd7f1e4d86c8e"
-  integrity sha512-g0a2HPqLguqAczs3dMECuA1RgoGFPyvDqcbaDEdCWY9g59kdUAz3YRmaJBNKXflrHNwB7Q12Gkf/0CZXfdHR7g==
+socket.io-parser@~3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-3.2.0.tgz#e7c6228b6aa1f814e6148aea325b51aa9499e077"
+  integrity sha512-FYiBx7rc/KORMJlgsXysflWx/RIvtqZbyGLlHZvjfmPTPeuD/I8MaW7cfFrj5tRltICJdgwflhfZ3NVVbVLFQA==
   dependencies:
     component-emitter "1.2.1"
     debug "~3.1.0"
-    has-binary2 "~1.0.2"
     isarray "2.0.1"
 
-socket.io@2.0.4:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.0.4.tgz#c1a4590ceff87ecf13c72652f046f716b29e6014"
-  integrity sha1-waRZDO/4fs8TxyZS8Eb3FrKeYBQ=
+socket.io@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.1.1.tgz#a069c5feabee3e6b214a75b40ce0652e1cfb9980"
+  integrity sha512-rORqq9c+7W0DAK3cleWNSyfv/qKXV99hV4tZe+gGLfBECw3XEhBy7x85F3wypA9688LKjtwO9pX9L33/xQI8yA==
   dependencies:
-    debug "~2.6.6"
-    engine.io "~3.1.0"
+    debug "~3.1.0"
+    engine.io "~3.2.0"
+    has-binary2 "~1.0.2"
     socket.io-adapter "~1.1.0"
-    socket.io-client "2.0.4"
-    socket.io-parser "~3.1.1"
+    socket.io-client "2.1.1"
+    socket.io-parser "~3.2.0"
 
 socks-proxy-agent@2:
   version "2.1.1"
@@ -7958,22 +7538,6 @@ socks-proxy-agent@2:
     extend "3"
     socks "~1.1.5"
 
-socks-proxy-agent@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/socks-proxy-agent/-/socks-proxy-agent-4.0.1.tgz#5936bf8b707a993079c6f37db2091821bffa6473"
-  integrity sha512-Kezx6/VBguXOsEe5oU3lXYyKMi4+gva72TwJ7pQY5JfqUx2nMk7NXA6z/mpNqIlfQjWYVfeuNvQjexiTaTn6Nw==
-  dependencies:
-    agent-base "~4.2.0"
-    socks "~2.2.0"
-
-socks@1.1.9:
-  version "1.1.9"
-  resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.9.tgz#628d7e4d04912435445ac0b6e459376cb3e6d691"
-  integrity sha1-Yo1+TQSRJDVEWsC25Fk3bLPm1pE=
-  dependencies:
-    ip "^1.1.2"
-    smart-buffer "^1.0.4"
-
 socks@~1.1.5:
   version "1.1.10"
   resolved "https://registry.yarnpkg.com/socks/-/socks-1.1.10.tgz#5b8b7fc7c8f341c53ed056e929b7bf4de8ba7b5a"
@@ -7982,14 +7546,6 @@ socks@~1.1.5:
     ip "^1.1.4"
     smart-buffer "^1.0.13"
 
-socks@~2.2.0:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/socks/-/socks-2.2.1.tgz#68ad678b3642fbc5d99c64c165bc561eab0215f9"
-  integrity sha512-0GabKw7n9mI46vcNrVfs0o6XzWzjVa3h6GaSo2UPxtWAROXUWavfJWh1M4PR5tnE0dcnQXZIDFP4yrAysLze/w==
-  dependencies:
-    ip "^1.1.5"
-    smart-buffer "^4.0.1"
-
 source-list-map@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
@@ -8019,7 +7575,7 @@ source-map-url@^0.4.0:
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
   integrity sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=
 
-source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
+source-map@^0.5.0, source-map@^0.5.1, source-map@^0.5.6:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
   integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
@@ -8116,6 +7672,13 @@ sshpk@^1.7.0:
     safer-buffer "^2.0.2"
     tweetnacl "~0.14.0"
 
+ssri@^5.2.4:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-5.3.0.tgz#ba3872c9c6d33a0704a7d71ff045e5ec48999d06"
+  integrity sha512-XRSIPqLij52MtgoQavH/x/dU1qVKtWUAAZeOHsR9c2Ddi4XerFy3mc1alf+dLJKl9EUIm/Ht+EowFkTUOA6GAQ==
+  dependencies:
+    safe-buffer "^5.1.1"
+
 staged-git-files@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.1.tgz#37c2218ef0d6d26178b1310719309a16a59f8f7b"
@@ -8147,6 +7710,14 @@ stream-browserify@^2.0.1:
     inherits "~2.0.1"
     readable-stream "^2.0.2"
 
+stream-each@^1.1.0:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/stream-each/-/stream-each-1.2.3.tgz#ebe27a0c389b04fbcc233642952e10731afa9bae"
+  integrity sha512-vlMC2f8I2u/bZGqkdfLQW/13Zihpej/7PmSiMQsbYddxuTsJp8vRe2x2FvVExZg7FaOds43ROAuFJwPR4MTZLw==
+  dependencies:
+    end-of-stream "^1.1.0"
+    stream-shift "^1.0.0"
+
 stream-http@^2.7.2:
   version "2.8.3"
   resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.8.3.tgz#b2d242469288a5a27ec4fe8933acf623de6514fc"
@@ -8158,6 +7729,11 @@ stream-http@^2.7.2:
     to-arraybuffer "^1.0.0"
     xtend "^4.0.0"
 
+stream-shift@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.0.tgz#d5c752825e5367e786f78e18e445ea223a155952"
+  integrity sha1-1cdSgl5TZ+eG944Y5EXqIjoVWVI=
+
 streamroller@0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-0.7.0.tgz#a1d1b7cf83d39afb0d63049a5acbf93493bdf64b"
@@ -8211,7 +7787,7 @@ stringify-object@^3.2.2:
     is-obj "^1.0.1"
     is-regexp "^1.0.0"
 
-stringstream@~0.0.4, stringstream@~0.0.5:
+stringstream@~0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
   integrity sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA==
@@ -8283,13 +7859,6 @@ supports-color@^3.1.0:
   dependencies:
     has-flag "^1.0.0"
 
-supports-color@^4.2.1:
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
-  integrity sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=
-  dependencies:
-    has-flag "^2.0.0"
-
 supports-color@^5.3.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
@@ -8314,10 +7883,10 @@ table@4.0.2:
     slice-ansi "1.0.0"
     string-width "^2.1.1"
 
-tapable@^0.2.7:
-  version "0.2.8"
-  resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
-  integrity sha1-mTcqXJmb8t8WCvwNdL7U9HlIzSI=
+tapable@^1.0.0, tapable@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.0.tgz#0d076a172e3d9ba088fd2272b2668fb8d194b78c"
+  integrity sha512-IlqtmLVaZA2qab8epUXbVWRn3aB1imbDMJtjB3nu4X0NqPkcY/JH9ZtCBWKHWPxs8Svi9tyo8w2dBoi07qZbBA==
 
 tar-stream@^1.5.0:
   version "1.6.2"
@@ -8383,16 +7952,11 @@ through@2, "through@>=2.2.7 <3", through@^2.3.6:
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
   integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
 
-thunkify@^2.1.2, thunkify@~2.1.1:
+thunkify@~2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/thunkify/-/thunkify-2.1.2.tgz#faa0e9d230c51acc95ca13a361ac05ca7e04553d"
   integrity sha1-+qDp0jDFGsyVyhOjYawFyn4EVT0=
 
-time-stamp@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.1.0.tgz#6c5c0b2bc835a244616abcfddf81ce13a1975c9f"
-  integrity sha512-lJbq6KsFhZJtN3fPUVje1tq/hHsJOKUUcUj/MGCiQR6qWBDcyi5kxL9J7/RnaEChCn0+L/DUN2WvemDrkk4i3Q==
-
 timers-browserify@^2.0.4:
   version "2.0.10"
   resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-2.0.10.tgz#1d28e3d2aadf1d5a5996c4e9f95601cd053480ae"
@@ -8400,11 +7964,6 @@ timers-browserify@^2.0.4:
   dependencies:
     setimmediate "^1.0.4"
 
-timespan@2.3.x:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/timespan/-/timespan-2.3.0.tgz#4902ce040bd13d845c8f59b27e9d59bad6f39929"
-  integrity sha1-SQLOBAvRPYRcj1myfp1ZutbzmSk=
-
 tmp@0.0.33, tmp@0.0.x, tmp@^0.0.33:
   version "0.0.33"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
@@ -8469,7 +8028,7 @@ to-regex@^3.0.1, to-regex@^3.0.2:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
-tough-cookie@~2.3.0, tough-cookie@~2.3.3:
+tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
   integrity sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==
@@ -8509,11 +8068,6 @@ tslib@^1.9.0:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
   integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==
 
-tsscmp@~1.0.0:
-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.6.tgz#85b99583ac3589ec4bfef825b5000aa911d605eb"
-  integrity sha512-LxhtAkPDTkVCMQjt2h6eBVY28KCjikZqZfMcC15YBeNjkgUpdCfBu5HoiOTDu86v6smE8yOjyEktJ8hlbANHQA==
-
 tty-browserify@0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
@@ -8526,11 +8080,6 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-tunnel-agent@~0.4.1:
-  version "0.4.3"
-  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.4.3.tgz#6373db76909fe570e08d73583365ed828a74eeeb"
-  integrity sha1-Y3PbdpCf5XDgjXNYM2Xtgop07us=
-
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
@@ -8566,15 +8115,13 @@ typescript@^2.7.1:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.2.tgz#1cbf61d05d6b96269244eb6a3bce4bd914e0f00c"
   integrity sha512-Gr4p6nFNaoufRIY4NMdpQRNmgxVIGMs4Fcu/ujdYk3nAZqk7supzBE9idmvfZIlH/Cuj//dvi+019qEue9lV0w==
 
-uglify-js@^2.8.29:
-  version "2.8.29"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
-  integrity sha1-KcVzMUgFe7Th913zW3qcty5qWd0=
+uglify-es@^3.3.4:
+  version "3.3.9"
+  resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.9.tgz#0c1c4f0700bed8dbc124cdb304d2592ca203e677"
+  integrity sha512-r+MU0rfv4L/0eeW3xZrd16t4NZfK8Ld4SWVglYBb7ez5uXFWHuVRs6xCTrf1yirs9a4j4Y27nn7SRfO6v67XsQ==
   dependencies:
-    source-map "~0.5.1"
-    yargs "~3.10.0"
-  optionalDependencies:
-    uglify-to-browserify "~1.0.0"
+    commander "~2.13.0"
+    source-map "~0.6.1"
 
 uglify-js@^3.0.15, uglify-js@^3.1.4:
   version "3.4.9"
@@ -8584,30 +8131,25 @@ uglify-js@^3.0.15, uglify-js@^3.1.4:
     commander "~2.17.1"
     source-map "~0.6.1"
 
-uglify-to-browserify@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
-  integrity sha1-bgkk1r2mta/jSeOabWMoUKD4grc=
-
-uglifyjs-webpack-plugin@^0.4.6:
-  version "0.4.6"
-  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-0.4.6.tgz#b951f4abb6bd617e66f63eb891498e391763e309"
-  integrity sha1-uVH0q7a9YX5m9j64kUmOORdj4wk=
+uglifyjs-webpack-plugin@^1.2.4:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.3.0.tgz#75f548160858163a08643e086d5fefe18a5d67de"
+  integrity sha512-ovHIch0AMlxjD/97j9AYovZxG5wnHOPkL7T1GKochBADp/Zwc44pEWNqpKl1Loupp1WhFg7SlYmHZRUfdAacgw==
   dependencies:
-    source-map "^0.5.6"
-    uglify-js "^2.8.29"
-    webpack-sources "^1.0.1"
+    cacache "^10.0.4"
+    find-cache-dir "^1.0.0"
+    schema-utils "^0.4.5"
+    serialize-javascript "^1.4.0"
+    source-map "^0.6.1"
+    uglify-es "^3.3.4"
+    webpack-sources "^1.1.0"
+    worker-farm "^1.5.2"
 
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
   integrity sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==
 
-underscore@~1.7.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.7.0.tgz#6bbaf0877500d36be34ecaa584e0db9fef035209"
-  integrity sha1-a7rwh3UA02vjTsqlhODbn+8DUgk=
-
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz#2619800c4c825800efdd8343af7dd9933cbe2818"
@@ -8648,6 +8190,20 @@ union@~0.4.3:
   dependencies:
     qs "~2.3.3"
 
+unique-filename@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/unique-filename/-/unique-filename-1.1.1.tgz#1d69769369ada0583103a1e6ae87681b56573230"
+  integrity sha512-Vmp0jIp2ln35UTXuryvjzkjGdRyf9b2lTXuSYUiPmzRcl3FDtYqAwOnTJkAngD9SWhnoJzDbTKwaOrZ+STtxNQ==
+  dependencies:
+    unique-slug "^2.0.0"
+
+unique-slug@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/unique-slug/-/unique-slug-2.0.1.tgz#5e9edc6d1ce8fb264db18a507ef9bd8544451ca6"
+  integrity sha512-n9cU6+gITaVu7VGj1Z8feKMmfAjEAQGhwD9fE3zvpRRa0wEIx8ODYkVGfSc94M2OX00tUFV8wH3zYbm1I8mxFg==
+  dependencies:
+    imurmurhash "^0.1.4"
+
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
@@ -8746,11 +8302,6 @@ uuid@^3.1.0, uuid@^3.3.2:
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
   integrity sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==
 
-uws@~9.14.0:
-  version "9.14.0"
-  resolved "https://registry.yarnpkg.com/uws/-/uws-9.14.0.tgz#fac8386befc33a7a3705cbd58dc47b430ca4dd95"
-  integrity sha512-HNMztPP5A1sKuVFmdZ6BPVpBQd5bUjNC8EFMFiICK+oho/OQsAJy5hnIx4btMHiOk8j04f/DbIlqnEZ9d72dqg==
-
 validate-npm-package-license@^3.0.1:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz#fc91f6b9c7ba15c857f4cb2c5defeec39d4f410a"
@@ -8795,7 +8346,7 @@ void-elements@^2.0.0:
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
   integrity sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=
 
-watchpack@^1.4.0:
+watchpack@^1.5.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.6.0.tgz#4bc12c2ebe8aa277a71f1d3f14d685c7b446cd00"
   integrity sha512-i6dHe3EyLjMmDlU1/bGQpEw25XSjkJULPuAVKCbNRefQVq48yXKUpwg538F7AZTf9kyr57zj++pQFltUa5H7yA==
@@ -8817,18 +8368,25 @@ wd@^1.4.0:
     request "2.85.0"
     vargs "0.1.0"
 
-webpack-dev-middleware@^1.12.0:
-  version "1.12.2"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz#f8fc1120ce3b4fc5680ceecb43d777966b21105e"
-  integrity sha512-FCrqPy1yy/sN6U/SaEZcHKRXGlqU0DUaEBL45jkUYoB8foVb6wCnbIJ1HKIx+qUFTW+3JpVcCJCxZ8VATL4e+A==
+webpack-dev-middleware@^3.2.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz#1132fecc9026fd90f0ecedac5cbff75d1fb45890"
+  integrity sha512-Q9Iyc0X9dP9bAsYskAVJ/hmIZZQwf/3Sy4xCAZgL5cUkjZmUZLt4l5HpbST/Pdgjn3u6pE7u5OdGd1apgzRujA==
   dependencies:
     memory-fs "~0.4.1"
-    mime "^1.5.0"
-    path-is-absolute "^1.0.0"
+    mime "^2.3.1"
     range-parser "^1.0.3"
-    time-stamp "^2.0.0"
+    webpack-log "^2.0.0"
+
+webpack-log@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/webpack-log/-/webpack-log-2.0.0.tgz#5b7928e0637593f119d32f6227c1e0ac31e1b47f"
+  integrity sha512-cX8G2vR/85UYG59FgkoMamwHUIkSSlV3bBMRsbxVXVUk2j6NleCKjQ/WE9eYg9WY4w25O9w8wKP4rzNZFmUcUg==
+  dependencies:
+    ansi-colors "^3.0.0"
+    uuid "^3.3.2"
 
-webpack-sources@^1.0.1:
+webpack-sources@^1.1.0, webpack-sources@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.3.0.tgz#2a28dcb9f1f45fe960d8f1493252b5ee6530fa85"
   integrity sha512-OiVgSrbGu7NEnEvQJJgdSFPl2qWKkWq5lHMhgiToIiN9w34EBnjYzSYs+VbL5KoYiLNtFFa7BZIKxRED3I32pA==
@@ -8836,33 +8394,35 @@ webpack-sources@^1.0.1:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^3.11.0:
-  version "3.12.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.12.0.tgz#3f9e34360370602fcf639e97939db486f4ec0d74"
-  integrity sha512-Sw7MdIIOv/nkzPzee4o0EdvCuPmxT98+vVpIvwtcwcF1Q4SDSNp92vwcKc4REe7NItH9f1S4ra9FuQ7yuYZ8bQ==
-  dependencies:
-    acorn "^5.0.0"
-    acorn-dynamic-import "^2.0.0"
+webpack@^4.22.0:
+  version "4.22.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.22.0.tgz#b168111e2e7b05f5169ac484e79e62093ec39e0d"
+  integrity sha512-2+3EYFqyhPl12buLQ42QPHEEh8BHn3P9ipRvGRHhdfKJ1u9svhZ3QjhIoEdL5SeIhL5gfOZVbBnartYEabkEsg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.8"
+    "@webassemblyjs/helper-module-context" "1.7.8"
+    "@webassemblyjs/wasm-edit" "1.7.8"
+    "@webassemblyjs/wasm-parser" "1.7.8"
+    acorn "^5.6.2"
+    acorn-dynamic-import "^3.0.0"
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
-    async "^2.1.2"
-    enhanced-resolve "^3.4.0"
-    escope "^3.6.0"
-    interpret "^1.0.0"
-    json-loader "^0.5.4"
-    json5 "^0.5.1"
+    chrome-trace-event "^1.0.0"
+    enhanced-resolve "^4.1.0"
+    eslint-scope "^4.0.0"
+    json-parse-better-errors "^1.0.2"
     loader-runner "^2.3.0"
     loader-utils "^1.1.0"
     memory-fs "~0.4.1"
+    micromatch "^3.1.8"
     mkdirp "~0.5.0"
+    neo-async "^2.5.0"
     node-libs-browser "^2.0.0"
-    source-map "^0.5.3"
-    supports-color "^4.2.1"
-    tapable "^0.2.7"
-    uglifyjs-webpack-plugin "^0.4.6"
-    watchpack "^1.4.0"
-    webpack-sources "^1.0.1"
-    yargs "^8.0.2"
+    schema-utils "^0.4.4"
+    tapable "^1.1.0"
+    uglifyjs-webpack-plugin "^1.2.4"
+    watchpack "^1.5.0"
+    webpack-sources "^1.3.0"
 
 weex-js-runtime@^0.23.6:
   version "0.23.7"
@@ -8876,16 +8436,6 @@ weex-styler@^0.3.0:
   dependencies:
     css "~2.2.1"
 
-when@^3.7.7:
-  version "3.7.8"
-  resolved "https://registry.yarnpkg.com/when/-/when-3.7.8.tgz#c7130b6a7ea04693e842cdc9e7a1f2aa39a39f82"
-  integrity sha1-xxMLan6gRpPoQs3J56Hyqjmjn4I=
-
-which-module@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
-  integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
-
 which@^1.1.1, which@^1.2.1, which@^1.2.10, which@^1.2.12, which@^1.2.9:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
@@ -8900,26 +8450,11 @@ wide-align@^1.1.0:
   dependencies:
     string-width "^1.0.2 || 2"
 
-window-size@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
-  integrity sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=
-
-with-callback@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/with-callback/-/with-callback-1.0.2.tgz#a09629b9a920028d721404fb435bdcff5c91bc21"
-  integrity sha1-oJYpuakgAo1yFAT7Q1vc/1yRvCE=
-
 word-wrap@^1.0.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
-wordwrap@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
-  integrity sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=
-
 wordwrap@^1.0.0, wordwrap@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
@@ -8930,13 +8465,12 @@ wordwrap@~0.0.2:
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
   integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
 
-wrap-ansi@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
-  integrity sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=
+worker-farm@^1.5.2:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.6.0.tgz#aecc405976fab5a95526180846f0dba288f3a4a0"
+  integrity sha512-6w+3tHbM87WnSWnENBUvA2pxJPLhQUg5LKwUQHq3r+XPhIM+Gh2R5ycbwPCyuGbNg+lPgdcnQUhuC02kJCvffQ==
   dependencies:
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
+    errno "~0.1.7"
 
 wrappy@1:
   version "1.0.2"
@@ -8974,10 +8508,10 @@ xtend@^4.0.0, xtend@~4.0.1:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
   integrity sha1-pcbVMr5lbiPbgg77lDofBJmNY68=
 
-y18n@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
-  integrity sha1-bRX7qITAhnnA136I53WegR4H+kE=
+y18n@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
+  integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
 
 yallist@^2.1.2:
   version "2.1.2"
@@ -8989,42 +8523,6 @@ yallist@^3.0.0, yallist@^3.0.2:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
   integrity sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k=
 
-yargs-parser@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
-  integrity sha1-jQrELxbqVd69MyyvTEA4s+P139k=
-  dependencies:
-    camelcase "^4.1.0"
-
-yargs@^8.0.2:
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
-  integrity sha1-YpmpBVsc78lp/355wdkY3Osiw2A=
-  dependencies:
-    camelcase "^4.1.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^2.0.0"
-    read-pkg-up "^2.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^7.0.0"
-
-yargs@~3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
-  integrity sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=
-  dependencies:
-    camelcase "^1.0.2"
-    cliui "^2.1.0"
-    decamelize "^1.0.0"
-    window-size "0.1.0"
-
 yauzl@2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"

From eeb752f6b61b29e1089465bea6db23bdf461a056 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 24 Oct 2018 10:44:05 -0400
Subject: [PATCH 530/911] build: upgrade typescript

---
 package.json | 2 +-
 yarn.lock    | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index 5a660a6a688..aa72889a6ae 100644
--- a/package.json
+++ b/package.json
@@ -137,7 +137,7 @@
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
     "shelljs": "^0.8.1",
-    "typescript": "^2.7.1",
+    "typescript": "^3.1.3",
     "uglify-js": "^3.0.15",
     "webpack": "^4.22.0",
     "weex-js-runtime": "^0.23.6",
diff --git a/yarn.lock b/yarn.lock
index d4813f660a4..1dba1b6399a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8110,10 +8110,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^2.7.1:
-  version "2.9.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.2.tgz#1cbf61d05d6b96269244eb6a3bce4bd914e0f00c"
-  integrity sha512-Gr4p6nFNaoufRIY4NMdpQRNmgxVIGMs4Fcu/ujdYk3nAZqk7supzBE9idmvfZIlH/Cuj//dvi+019qEue9lV0w==
+typescript@^3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.3.tgz#01b70247a6d3c2467f70c45795ef5ea18ce191d5"
+  integrity sha512-+81MUSyX+BaSo+u2RbozuQk/UWx6hfG0a5gHu4ANEM4sU96XbuIyAB+rWBW1u70c6a5QuZfuYICn3s2UjuHUpA==
 
 uglify-es@^3.3.4:
   version "3.3.9"

From 980801c8a3daf9cb7f435156487ee733037efd9b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 24 Oct 2018 10:50:37 -0400
Subject: [PATCH 531/911] build: use terser instead of uglify

---
 package.json     |  2 +-
 scripts/build.js |  4 ++--
 yarn.lock        | 13 +++++++++++--
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/package.json b/package.json
index aa72889a6ae..028936bac84 100644
--- a/package.json
+++ b/package.json
@@ -138,7 +138,7 @@
     "serialize-javascript": "^1.3.0",
     "shelljs": "^0.8.1",
     "typescript": "^3.1.3",
-    "uglify-js": "^3.0.15",
+    "terser": "^3.10.2",
     "webpack": "^4.22.0",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
diff --git a/scripts/build.js b/scripts/build.js
index 82d4c52e631..271471488ec 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -2,7 +2,7 @@ const fs = require('fs')
 const path = require('path')
 const zlib = require('zlib')
 const rollup = require('rollup')
-const uglify = require('uglify-js')
+const terser = require('terser')
 
 if (!fs.existsSync('dist')) {
   fs.mkdirSync('dist')
@@ -48,7 +48,7 @@ function buildEntry (config) {
     .then(bundle => bundle.generate(output))
     .then(({ code }) => {
       if (isProd) {
-        var minified = (banner ? banner + '\n' : '') + uglify.minify(code, {
+        var minified = (banner ? banner + '\n' : '') + terser.minify(code, {
           output: {
             ascii_only: true
           },
diff --git a/yarn.lock b/yarn.lock
index 1dba1b6399a..6ff2cc13457 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7562,7 +7562,7 @@ source-map-resolve@^0.5.0, source-map-resolve@^0.5.2:
     source-map-url "^0.4.0"
     urix "^0.1.0"
 
-source-map-support@^0.5.9:
+source-map-support@^0.5.9, source-map-support@~0.5.6:
   version "0.5.9"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.9.tgz#41bc953b2534267ea2d605bccfa7bfa3111ced5f"
   integrity sha512-gR6Rw4MvUlYy83vP0vxoVNzM6t8MUXqNuRsuBmBHQDu1Fh6X015FrLdgoDKcNdkwGubozq0P4N0Q37UyFVr1EA==
@@ -7914,6 +7914,15 @@ tar@^4:
     safe-buffer "^5.1.2"
     yallist "^3.0.2"
 
+terser@^3.10.2:
+  version "3.10.2"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-3.10.2.tgz#a61d2c97065f9fdc8c49a18655e2a80ca7298a94"
+  integrity sha512-+QrFoqBImmsQGB4c/HvaqgZynmbNvNBwoBxuu7fYXtq5EEtlLUzph+WimDj+xMkuqawXPMl2lgCIz81CdXvt+w==
+  dependencies:
+    commander "~2.17.1"
+    source-map "~0.6.1"
+    source-map-support "~0.5.6"
+
 test-exclude@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.0.0.tgz#cdce7cece785e0e829cd5c2b27baf18bc583cfb7"
@@ -8123,7 +8132,7 @@ uglify-es@^3.3.4:
     commander "~2.13.0"
     source-map "~0.6.1"
 
-uglify-js@^3.0.15, uglify-js@^3.1.4:
+uglify-js@^3.1.4:
   version "3.4.9"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.4.9.tgz#af02f180c1207d76432e473ed24a28f4a782bae3"
   integrity sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==

From 76fd45c9fd611fecfa79997706a5d218de206b68 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 24 Oct 2018 12:08:32 -0400
Subject: [PATCH 532/911] build: upgrade eslint and use only non-stylistic
 rules

---
 .eslintrc.js                                  |  29 ++
 .eslintrc.json                                |  14 -
 dist/vue.min.js                               |   2 +-
 package.json                                  |   6 +-
 src/compiler/codegen/events.js                |   3 +-
 src/compiler/codegen/index.js                 |   4 +-
 src/core/instance/state.js                    |   2 +-
 src/core/observer/index.js                    |  11 +-
 .../weex/compiler/directives/model.js         |   3 +-
 src/platforms/weex/compiler/modules/append.js |   2 +-
 src/platforms/weex/compiler/modules/props.js  |   2 +-
 .../modules/recycle-list/component-root.js    |   5 +-
 .../compiler/modules/recycle-list/index.js    |  10 +-
 .../compiler/modules/recycle-list/text.js     |   2 +-
 .../compiler/modules/recycle-list/v-bind.js   |   2 +-
 .../compiler/modules/recycle-list/v-on.js     |   2 +-
 .../compiler/modules/recycle-list/v-once.js   |   2 +-
 .../weex/runtime/modules/transition.js        |   4 +-
 src/platforms/weex/util/element.js            |   6 +-
 src/server/render-context.js                  |   1 +
 src/sfc/parser.js                             |   2 +-
 src/shared/util.js                            |   4 +
 test/e2e/{.eslintrc => .eslintrc.json}        |   0
 test/helpers/{.eslintrc => .eslintrc.json}    |   0
 test/ssr/ssr-basic-renderer.spec.js           |   2 +-
 test/ssr/ssr-string.spec.js                   |   2 +-
 test/unit/{.eslintrc => .eslintrc.json}       |   3 +-
 test/unit/features/error-handling.spec.js     |   2 +-
 .../modules/compiler/compiler-options.spec.js |   2 +-
 yarn.lock                                     | 339 ++++++------------
 30 files changed, 187 insertions(+), 281 deletions(-)
 create mode 100644 .eslintrc.js
 delete mode 100644 .eslintrc.json
 rename test/e2e/{.eslintrc => .eslintrc.json} (100%)
 rename test/helpers/{.eslintrc => .eslintrc.json} (100%)
 rename test/unit/{.eslintrc => .eslintrc.json} (75%)

diff --git a/.eslintrc.js b/.eslintrc.js
new file mode 100644
index 00000000000..e27aad552a1
--- /dev/null
+++ b/.eslintrc.js
@@ -0,0 +1,29 @@
+module.exports = {
+  root: true,
+  parserOptions: {
+    parser: require.resolve('babel-eslint'),
+    ecmaVersion: 2018,
+    sourceType: 'module'
+  },
+  env: {
+    es6: true,
+    node: true,
+    browser: true
+  },
+  plugins: [
+    "flowtype"
+  ],
+  extends: [
+    "eslint:recommended",
+    "plugin:flowtype/recommended"
+  ],
+  globals: {
+    "__WEEX__": true,
+    "WXEnvironment": true
+  },
+  rules: {
+    'no-console': process.env.NODE_ENV !== 'production' ? 0 : 2,
+    'no-useless-escape': 0,
+    'no-empty': 0
+  }
+}
diff --git a/.eslintrc.json b/.eslintrc.json
deleted file mode 100644
index f5845425106..00000000000
--- a/.eslintrc.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "root": true,
-  "plugins": [
-    "flowtype"
-  ],
-  "extends": [
-    "plugin:vue-libs/recommended",
-    "plugin:flowtype/recommended"
-  ],
-  "globals": {
-    "__WEEX__": true,
-    "WXEnvironment": true
-  }
-}
diff --git a/dist/vue.min.js b/dist/vue.min.js
index a5c1b2785a5..db26f4f8be3 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -3,4 +3,4 @@
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var y=Object.freeze({});function M(e){return null==e}function D(e){return null!=e}function S(e){return!0===e}function T(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function P(e){return null!==e&&"object"==typeof e}var r=Object.prototype.toString;function u(e){return"[object Object]"===r.call(e)}function i(e){var t=parseFloat(String(e));return 0<=t&&Math.floor(t)===t&&isFinite(e)}function t(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function F(e){var t=parseFloat(e);return isNaN(t)?e:t}function s(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var c=s("slot,component",!0),l=s("key,ref,slot,slot-scope,is");function f(e,t){if(e.length){var n=e.indexOf(t);if(-1<n)return e.splice(n,1)}}var n=Object.prototype.hasOwnProperty;function p(e,t){return n.call(e,t)}function e(t){var n=Object.create(null);return function(e){return n[e]||(n[e]=t(e))}}var o=/-(\w)/g,g=e(function(e){return e.replace(o,function(e,t){return t?t.toUpperCase():""})}),d=e(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),a=/\B([A-Z])/g,_=e(function(e){return e.replace(a,"-$1").toLowerCase()});var v=Function.prototype.bind?function(e,t){return e.bind(t)}:function(n,r){function e(e){var t=arguments.length;return t?1<t?n.apply(r,arguments):n.call(r,e):n.call(r)}return e._length=n.length,e};function h(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function m(e,t){for(var n in t)e[n]=t[n];return e}function b(e){for(var t={},n=0;n<e.length;n++)e[n]&&m(t,e[n]);return t}function $(e,t,n){}var O=function(e,t,n){return!1},w=function(e){return e};function C(t,n){if(t===n)return!0;var 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e.forProcessed=!0,(r||"_l")+"(("+i+"),function("+o+a+s+"){return "+(n||la)(e,t)+"})"}(e,t);if(e.if&&!e.ifProcessed)return da(e,t);if("template"!==e.tag||e.slotTarget){if("slot"===e.tag)return function(e,t){var n=e.slotName||'"default"',r=ma(e,t),i="_t("+n+(r?","+r:""),o=e.attrs&&"{"+e.attrs.map(function(e){return _(e.name)+":"+e.value}).join(",")+"}",a=e.attrsMap["v-bind"];!o&&!a||r||(i+=",null");o&&(i+=","+o);a&&(i+=(o?"":",null")+","+a);return i+")"}(e,t);var n;if(e.component)n=function(e,t,n){var r=t.inlineTemplate?null:ma(t,n,!0);return"_c("+e+","+va(t,n)+(r?","+r:"")+")"}(e.component,e,t);else{var r=e.plain?void 0:va(e,t),i=e.inlineTemplate?null:ma(e,t,!0);n="_c('"+e.tag+"'"+(r?","+r:"")+(i?","+i:"")+")"}for(var o=0;o<t.transforms.length;o++)n=t.transforms[o](e,n);return n}return ma(e,t)||"void 0"}function fa(e,t){return e.staticProcessed=!0,t.staticRenderFns.push("with(this){return "+la(e,t)+"}"),"_m("+(t.staticRenderFns.length-1)+(e.staticInFor?",true":"")+")"}function 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s.slice(0,-1)+"]"}(e,t);r&&(n+=r+","),e.key&&(n+="key:"+e.key+","),e.ref&&(n+="ref:"+e.ref+","),e.refInFor&&(n+="refInFor:true,"),e.pre&&(n+="pre:true,"),e.component&&(n+='tag:"'+e.tag+'",');for(var i=0;i<t.dataGenFns.length;i++)n+=t.dataGenFns[i](e);if(e.attrs&&(n+="attrs:{"+_a(e.attrs)+"},"),e.props&&(n+="domProps:{"+_a(e.props)+"},"),e.events&&(n+=ia(e.events,!1,t.warn)+","),e.nativeEvents&&(n+=ia(e.nativeEvents,!0,t.warn)+","),e.slotTarget&&!e.slotScope&&(n+="slot:"+e.slotTarget+","),e.scopedSlots&&(n+=function(e,t){return"scopedSlots:_u(["+Object.keys(e).map(function(n){return ha(n,e[n],t)}).join(",")+"])"}(e.scopedSlots,t)+","),e.model&&(n+="model:{value:"+e.model.value+",callback:"+e.model.callback+",expression:"+e.model.expression+"},"),e.inlineTemplate){var o=function(e,t){var n=e.children[0];if(1===n.type){var 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a="\n"/>',Ca.innerHTML.indexOf("&#10;")>0}var Oa=!!B&&Aa(!1),Sa=!!B&&Aa(!0),Ta=y(function(e){var t=Pn(e);return t&&t.innerHTML}),ja=un.prototype.$mount;return un.prototype.$mount=function(e,t){if((e=e&&Pn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=Ta(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var i=ka(r,{shouldDecodeNewlines:Oa,shouldDecodeNewlinesForHref:Sa,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return ja.call(this,e,t)},un.compile=ka,un});
\ No newline at end of file
diff --git a/package.json b/package.json
index 028936bac84..47dc045cbca 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "test:ssr": "npm run build:ssr && jasmine JASMINE_CONFIG_PATH=test/ssr/jasmine.js",
     "test:sauce": "npm run sauce -- 0 && npm run sauce -- 1 && npm run sauce -- 2",
     "test:types": "tsc -p ./types/test/tsconfig.json",
-    "lint": "eslint --fix src scripts test",
+    "lint": "eslint src scripts test",
     "flow": "flow check",
     "sauce": "karma start test/unit/karma.sauce.config.js",
     "bench:ssr": "npm run build:ssr && node benchmarks/ssr/renderToString.js && node benchmarks/ssr/renderToStream.js",
@@ -94,11 +94,9 @@
     "de-indent": "^1.0.2",
     "es6-promise": "^4.1.0",
     "escodegen": "^1.8.1",
-    "eslint": "^4.13.1",
-    "eslint-loader": "^1.7.1",
+    "eslint": "^5.7.0",
     "eslint-plugin-flowtype": "^2.34.0",
     "eslint-plugin-jasmine": "^2.8.4",
-    "eslint-plugin-vue-libs": "^2.0.1",
     "file-loader": "^1.1.5",
     "flow-bin": "^0.61.0",
     "hash-sum": "^1.0.2",
diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index c2a73a7f10b..d2001bb7954 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -51,8 +51,7 @@ const modifierCode: { [key: string]: string } = {
 
 export function genHandlers (
   events: ASTElementHandlers,
-  isNative: boolean,
-  warn: Function
+  isNative: boolean
 ): string {
   let res = isNative ? 'nativeOn:{' : 'on:{'
   for (const name in events) {
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index c0b57a19135..fc376bc1aee 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -237,10 +237,10 @@ export function genData (el: ASTElement, state: CodegenState): string {
   }
   // event handlers
   if (el.events) {
-    data += `${genHandlers(el.events, false, state.warn)},`
+    data += `${genHandlers(el.events, false)},`
   }
   if (el.nativeEvents) {
-    data += `${genHandlers(el.nativeEvents, true, state.warn)},`
+    data += `${genHandlers(el.nativeEvents, true)},`
   }
   // slot target
   // only for non-scoped slots
diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index b1549b0dcc4..184f94efaa8 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -321,7 +321,7 @@ export function stateMixin (Vue: Class<Component>) {
   const propsDef = {}
   propsDef.get = function () { return this._props }
   if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function (newData: Object) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index e373716c9f7..b9ef4b8a41a 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -45,10 +45,11 @@ export class Observer {
     this.vmCount = 0
     def(value, '__ob__', this)
     if (Array.isArray(value)) {
-      const augment = hasProto
-        ? protoAugment
-        : copyAugment
-      augment(value, arrayMethods, arrayKeys)
+      if (hasProto) {
+        protoAugment(value, arrayMethods)
+      } else {
+        copyAugment(value, arrayMethods, arrayKeys)
+      }
       this.observeArray(value)
     } else {
       this.walk(value)
@@ -83,7 +84,7 @@ export class Observer {
  * Augment an target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src: Object, keys: any) {
+function protoAugment (target, src: Object) {
   /* eslint-disable no-proto */
   target.__proto__ = src
   /* eslint-enable no-proto */
diff --git a/src/platforms/weex/compiler/directives/model.js b/src/platforms/weex/compiler/directives/model.js
index 6c9b7685ada..6961802d093 100644
--- a/src/platforms/weex/compiler/directives/model.js
+++ b/src/platforms/weex/compiler/directives/model.js
@@ -5,8 +5,7 @@ import { genComponentModel, genAssignmentCode } from 'compiler/directives/model'
 
 export default function model (
   el: ASTElement,
-  dir: ASTDirective,
-  _warn: Function
+  dir: ASTDirective
 ): ?boolean {
   if (el.tag === 'input' || el.tag === 'textarea') {
     genDefaultModel(el, dir.value, dir.modifiers)
diff --git a/src/platforms/weex/compiler/modules/append.js b/src/platforms/weex/compiler/modules/append.js
index 6e7be2674dc..b2c98173b46 100644
--- a/src/platforms/weex/compiler/modules/append.js
+++ b/src/platforms/weex/compiler/modules/append.js
@@ -6,7 +6,7 @@ import { makeMap } from 'shared/util'
 // must be sent to the native together.
 const isUnitaryTag = makeMap('cell,header,cell-slot,recycle-list', true)
 
-function preTransformNode (el: ASTElement, options: CompilerOptions) {
+function preTransformNode (el: ASTElement) {
   if (isUnitaryTag(el.tag) && !el.attrsList.some(item => item.name === 'append')) {
     el.attrsMap.append = 'tree'
     el.attrsList.push({ name: 'append', value: 'tree' })
diff --git a/src/platforms/weex/compiler/modules/props.js b/src/platforms/weex/compiler/modules/props.js
index 8b0bb5f2e69..f287c0aea9b 100644
--- a/src/platforms/weex/compiler/modules/props.js
+++ b/src/platforms/weex/compiler/modules/props.js
@@ -13,7 +13,7 @@ function normalizeKeyName (str: string): string {
   return normalize(str)
 }
 
-function transformNode (el: ASTElement, options: CompilerOptions) {
+function transformNode (el: ASTElement) {
   if (Array.isArray(el.attrsList)) {
     el.attrsList.forEach(attr => {
       if (attr.name && attr.name.match(/\-/)) {
diff --git a/src/platforms/weex/compiler/modules/recycle-list/component-root.js b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
index 7d9fedea92a..5138799fb6b 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/component-root.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/component-root.js
@@ -3,10 +3,7 @@
 import { addAttr } from 'compiler/helpers'
 
 // mark component root nodes as
-export function postTransformComponentRoot (
-  el: ASTElement,
-  options: WeexCompilerOptions
-) {
+export function postTransformComponentRoot (el: ASTElement) {
   if (!el.parent) {
     // component root
     addAttr(el, '@isComponentRoot', 'true')
diff --git a/src/platforms/weex/compiler/modules/recycle-list/index.js b/src/platforms/weex/compiler/modules/recycle-list/index.js
index 502cc78238b..e75b1746e4a 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/index.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/index.js
@@ -23,10 +23,10 @@ function preTransformNode (el: ASTElement, options: WeexCompilerOptions) {
     currentRecycleList = el
   }
   if (shouldCompile(el, options)) {
-    preTransformVBind(el, options)
+    preTransformVBind(el)
     preTransformVIf(el, options) // also v-else-if and v-else
     preTransformVFor(el, options)
-    preTransformVOnce(el, options)
+    preTransformVOnce(el)
   }
 }
 
@@ -41,12 +41,12 @@ function postTransformNode (el: ASTElement, options: WeexCompilerOptions) {
     // mark child component in parent template
     postTransformComponent(el, options)
     // mark root in child component template
-    postTransformComponentRoot(el, options)
+    postTransformComponentRoot(el)
     // <text>: transform children text into value attr
     if (el.tag === 'text') {
-      postTransformText(el, options)
+      postTransformText(el)
     }
-    postTransformVOn(el, options)
+    postTransformVOn(el)
   }
   if (el === currentRecycleList) {
     currentRecycleList = null
diff --git a/src/platforms/weex/compiler/modules/recycle-list/text.js b/src/platforms/weex/compiler/modules/recycle-list/text.js
index 575ec7f6cea..b3cbd06fb31 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/text.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/text.js
@@ -13,7 +13,7 @@ function genText (node: ASTNode) {
   return JSON.stringify(value)
 }
 
-export function postTransformText (el: ASTElement, options: WeexCompilerOptions) {
+export function postTransformText (el: ASTElement) {
   // weex <text> can only contain text, so the parser
   // always generates a single child.
   if (el.children.length) {
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
index effdf351126..14f0f687dab 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-bind.js
@@ -9,7 +9,7 @@ function parseAttrName (name: string): string {
   return camelize(name.replace(bindRE, ''))
 }
 
-export function preTransformVBind (el: ASTElement, options: WeexCompilerOptions) {
+export function preTransformVBind (el: ASTElement) {
   for (const attr in el.attrsMap) {
     if (bindRE.test(attr)) {
       const name: string = parseAttrName(attr)
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-on.js b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
index b1ba262c025..aed3ea75531 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-on.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-on.js
@@ -9,7 +9,7 @@ function parseHandlerParams (handler: ASTElementHandler) {
   }
 }
 
-export function postTransformVOn (el: ASTElement, options: WeexCompilerOptions) {
+export function postTransformVOn (el: ASTElement) {
   const events: ASTElementHandlers | void = el.events
   if (!events) {
     return
diff --git a/src/platforms/weex/compiler/modules/recycle-list/v-once.js b/src/platforms/weex/compiler/modules/recycle-list/v-once.js
index baff838a49f..99380c7f481 100644
--- a/src/platforms/weex/compiler/modules/recycle-list/v-once.js
+++ b/src/platforms/weex/compiler/modules/recycle-list/v-once.js
@@ -11,7 +11,7 @@ function containVOnce (el: ASTElement): boolean {
   return false
 }
 
-export function preTransformVOnce (el: ASTElement, options: WeexCompilerOptions) {
+export function preTransformVOnce (el: ASTElement) {
   if (containVOnce(el)) {
     getAndRemoveAttr(el, 'v-once', true)
     addRawAttr(el, '[[once]]', true)
diff --git a/src/platforms/weex/runtime/modules/transition.js b/src/platforms/weex/runtime/modules/transition.js
index e474c2b3e9b..cf872819f31 100644
--- a/src/platforms/weex/runtime/modules/transition.js
+++ b/src/platforms/weex/runtime/modules/transition.js
@@ -75,7 +75,7 @@ function enter (_, vnode) {
   const stylesheet = vnode.context.$options.style || {}
   const startState = stylesheet[startClass]
   const transitionProperties = (stylesheet['@TRANSITION'] && stylesheet['@TRANSITION'][activeClass]) || {}
-  const endState = getEnterTargetState(el, stylesheet, startClass, toClass, activeClass, vnode.context)
+  const endState = getEnterTargetState(el, stylesheet, startClass, toClass, activeClass)
   const needAnimation = Object.keys(endState).length > 0
 
   const cb = el._enterCb = once(() => {
@@ -229,7 +229,7 @@ function leave (vnode, rm) {
 }
 
 // determine the target animation style for an entering transition.
-function getEnterTargetState (el, stylesheet, startClass, endClass, activeClass, vm) {
+function getEnterTargetState (el, stylesheet, startClass, endClass, activeClass) {
   const targetState = {}
   const startState = stylesheet[startClass]
   const endState = stylesheet[endClass]
diff --git a/src/platforms/weex/util/element.js b/src/platforms/weex/util/element.js
index 2bac590ba22..9753918597b 100644
--- a/src/platforms/weex/util/element.js
+++ b/src/platforms/weex/util/element.js
@@ -33,13 +33,13 @@ export const isUnaryTag = makeMap(
   true
 )
 
-export function mustUseProp (tag: string, type: ?string, name: string): boolean {
+export function mustUseProp (): boolean {
   return false
 }
 
-export function getTagNamespace (tag?: string): string | void { }
+export function getTagNamespace (): void { }
 
-export function isUnknownElement (tag?: string): boolean {
+export function isUnknownElement (): boolean {
   return false
 }
 
diff --git a/src/server/render-context.js b/src/server/render-context.js
index 178140cdc4d..b23cbd0fd64 100644
--- a/src/server/render-context.js
+++ b/src/server/render-context.js
@@ -70,6 +70,7 @@ export class RenderContext {
     if (isUndef(lastState)) {
       return this.done()
     }
+    /* eslint-disable no-case-declarations */
     switch (lastState.type) {
       case 'Element':
       case 'Fragment':
diff --git a/src/sfc/parser.js b/src/sfc/parser.js
index 868a43ca082..d7868a40ab8 100644
--- a/src/sfc/parser.js
+++ b/src/sfc/parser.js
@@ -80,7 +80,7 @@ export function parseComponent (
     }
   }
 
-  function end (tag: string, start: number, end: number) {
+  function end (tag: string, start: number) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start
       let text = deindent(content.slice(currentBlock.start, currentBlock.end))
diff --git a/src/shared/util.js b/src/shared/util.js
index d16cc65793b..fda18467699 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -240,6 +240,8 @@ export function toObject (arr: Array<any>): Object {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
@@ -252,6 +254,8 @@ export function noop (a?: any, b?: any, c?: any) {}
  */
 export const no = (a?: any, b?: any, c?: any) => false
 
+/* eslint-enable no-unused-vars */
+
 /**
  * Return the same value.
  */
diff --git a/test/e2e/.eslintrc b/test/e2e/.eslintrc.json
similarity index 100%
rename from test/e2e/.eslintrc
rename to test/e2e/.eslintrc.json
diff --git a/test/helpers/.eslintrc b/test/helpers/.eslintrc.json
similarity index 100%
rename from test/helpers/.eslintrc
rename to test/helpers/.eslintrc.json
diff --git a/test/ssr/ssr-basic-renderer.spec.js b/test/ssr/ssr-basic-renderer.spec.js
index 7cbacbee726..09ce8e7dd46 100644
--- a/test/ssr/ssr-basic-renderer.spec.js
+++ b/test/ssr/ssr-basic-renderer.spec.js
@@ -61,7 +61,7 @@ describe('SSR: basicRenderer', () => {
       created () {
         ssrContext = this.$ssrContext
       }
-    }), (err, result) => {
+    }), (err) => {
       expect(err).toBeNull()
       expect(ssrContext).toBeUndefined()
       done()
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 6dbf5a28ad0..abf91526dd1 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1102,7 +1102,7 @@ describe('SSR: renderToString', () => {
   it('should catch template compilation error', done => {
     renderToString(new Vue({
       template: `<div></div><div></div>`
-    }), (err, res) => {
+    }), (err) => {
       expect(err.toString()).toContain('Component template should contain exactly one root element')
       done()
     })
diff --git a/test/unit/.eslintrc b/test/unit/.eslintrc.json
similarity index 75%
rename from test/unit/.eslintrc
rename to test/unit/.eslintrc.json
index 8334c32a015..d1ccc04e195 100644
--- a/test/unit/.eslintrc
+++ b/test/unit/.eslintrc.json
@@ -9,6 +9,7 @@
   },
   "plugins": ["jasmine"],
   "rules": {
-    "jasmine/no-focused-tests": 2
+    "jasmine/no-focused-tests": 2,
+    "no-unused-vars": 0
   }
 }
diff --git a/test/unit/features/error-handling.spec.js b/test/unit/features/error-handling.spec.js
index 217bb72721a..77ac0b928b3 100644
--- a/test/unit/features/error-handling.spec.js
+++ b/test/unit/features/error-handling.spec.js
@@ -5,7 +5,7 @@ const components = createErrorTestComponents()
 describe('Error handling', () => {
   // hooks that prevents the component from rendering, but should not
   // break parent component
-  ;[
+  [
     ['data', 'data()'],
     ['render', 'render'],
     ['beforeCreate', 'beforeCreate hook'],
diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index 0070c352166..ad9707a5578 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -81,7 +81,7 @@ describe('compile options', () => {
           computed: {
             valid () {
               let ret = true
-              for (let i = 0; i > this.validators.length; i++) {
+              for (let i = 0; i < this.validators.length; i++) {
                 const { name } = this.validators[i]
                 if (!this.result[name]) {
                   ret = false
diff --git a/yarn.lock b/yarn.lock
index 6ff2cc13457..0da86a70227 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -959,19 +959,14 @@ acorn-dynamic-import@^3.0.0:
   dependencies:
     acorn "^5.0.0"
 
-acorn-jsx@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
-  integrity sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=
+acorn-jsx@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-4.1.1.tgz#e8e41e48ea2fe0c896740610ab6a4ffd8add225e"
+  integrity sha512-JY+iV6r+cO21KtntVvFkD+iqjtdpRUpGqKWgfkCdZq1R+kbreEl8EcdcJR4SmiIgsIQT33s6QzheQ9a275Q8xw==
   dependencies:
-    acorn "^3.0.4"
-
-acorn@^3.0.4:
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
-  integrity sha1-ReN/s56No/JbruP/U2niu18iAXo=
+    acorn "^5.0.3"
 
-acorn@^5.0.0, acorn@^5.2.1, acorn@^5.5.0, acorn@^5.6.2:
+acorn@^5.0.0, acorn@^5.0.3, acorn@^5.2.1, acorn@^5.6.0, acorn@^5.6.2:
   version "5.7.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
   integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
@@ -1001,17 +996,12 @@ agent-base@^4.1.0:
   dependencies:
     es6-promisify "^5.0.0"
 
-ajv-keywords@^2.1.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
-  integrity sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=
-
 ajv-keywords@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.2.0.tgz#e86b819c602cf8821ad637413698f1dec021847a"
   integrity sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=
 
-ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
+ajv@^5.1.0, ajv@^5.3.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   integrity sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=
@@ -1021,7 +1011,7 @@ ajv@^5.1.0, ajv@^5.2.3, ajv@^5.3.0:
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
 
-ajv@^6.1.0:
+ajv@^6.1.0, ajv@^6.5.3:
   version "6.5.4"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.5.4.tgz#247d5274110db653706b550fcc2b797ca28cfc59"
   integrity sha512-4Wyjt8+t6YszqaXnLDfMmG/8AlO5Zbcsy3ATHncCzjW/NoPzAId8AK6749Ybjmdt+kUY1gP60fCu46oDxPv/mg==
@@ -1298,7 +1288,7 @@ aws4@^1.6.0, aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
-babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
+babel-code-frame@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
   integrity sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=
@@ -1919,6 +1909,11 @@ chardet@^0.4.0:
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
   integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
 
+chardet@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
+  integrity sha512-mT8iDcrh03qDGRRmoA2hmBJnxpllMR+0/0qlzjqZES6NdiWDcZkCNAk4rPFZ9Q85r27unkiNNg8ZOiwZXBHwcA==
+
 chokidar@^2.0.2, chokidar@^2.0.3:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.4.tgz#356ff4e2b0e8e43e322d18a372460bbcf3accd26"
@@ -2179,7 +2174,7 @@ concat-map@0.0.1:
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
-concat-stream@1.6.2, concat-stream@^1.4.7, concat-stream@^1.5.0, concat-stream@^1.6.0:
+concat-stream@1.6.2, concat-stream@^1.4.7, concat-stream@^1.5.0:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
@@ -2477,6 +2472,17 @@ cross-spawn@^5.0.1, cross-spawn@^5.1.0:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+cross-spawn@^6.0.5:
+  version "6.0.5"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
+  integrity sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==
+  dependencies:
+    nice-try "^1.0.4"
+    path-key "^2.0.1"
+    semver "^5.5.0"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
 cryptiles@3.x.x:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-3.1.2.tgz#a89fbb220f5ce25ec56e8c4aa8a4fd7b5b0d29fe"
@@ -2631,6 +2637,13 @@ debug@^3.1.0:
   dependencies:
     ms "^2.1.1"
 
+debug@^4.0.1:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.0.tgz#373687bffa678b38b1cd91f861b63850035ddc87"
+  integrity sha512-heNPJUJIqC+xB6ayLAMHaIrmN9HKa7aQO8MGqKpvCA+uJYVcvR6l5kgdrhRuwPFHU7P5/A1w0BjByPHwpfTDKg==
+  dependencies:
+    ms "^2.1.1"
+
 decamelize-keys@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
@@ -2817,49 +2830,11 @@ dom-serialize@^2.2.0:
     extend "^3.0.0"
     void-elements "^2.0.0"
 
-dom-serializer@0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
-  integrity sha1-BzxpdUbOB4DOI75KKOKT5AvDDII=
-  dependencies:
-    domelementtype "~1.1.1"
-    entities "~1.1.1"
-
 domain-browser@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
   integrity sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==
 
-domelementtype@1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.2.1.tgz#578558ef23befac043a1abb0db07635509393479"
-  integrity sha512-SQVCLFS2E7G5CRCMdn6K9bIhRj1bS6QBWZfF0TUPh4V/BbqrQ619IdSS3/izn0FZ+9l+uODzaZjb08fjOfablA==
-
-domelementtype@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
-  integrity sha1-sXrtguirWeUt2cGbF1bg/BhyBMI=
-
-domelementtype@~1.1.1:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
-  integrity sha1-vSh3PiZCiBrsUVRJJCmcXNgiGFs=
-
-domhandler@^2.3.0:
-  version "2.4.2"
-  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.2.tgz#8805097e933d65e85546f726d60f5eb88b44f803"
-  integrity sha512-JiK04h0Ht5u/80fdLMCEmV4zkNh2BcoMFBmZ/91WtYZ8qVXSKjiw7fXMgFPnHcSZgOo3XdinHvmnDUeMf5R4wA==
-  dependencies:
-    domelementtype "1"
-
-domutils@^1.5.1:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.7.0.tgz#56ea341e834e06e6748af7a1cb25da67ea9f8c2a"
-  integrity sha512-Lgd2XcJ/NjEw+7tFvfKxOzCYKZsdct5lczQ2ZaQY8Djz7pfAD3Gbp8ySJWtreII/vDlMVmxwa6pHmdxIYgttDg==
-  dependencies:
-    dom-serializer "0"
-    domelementtype "1"
-
 dot-prop@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-3.0.0.tgz#1b708af094a49c9a0e7dbcad790aba539dac1177"
@@ -3006,11 +2981,6 @@ ent@~2.2.0:
   resolved "https://registry.yarnpkg.com/ent/-/ent-2.2.0.tgz#e964219325a21d05f44466a2f686ed6ce5f5dd1d"
   integrity sha1-6WQhkyWiHQX0RGai9obtbOX13R0=
 
-entities@^1.1.1, entities@~1.1.1:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.2.tgz#bdfa735299664dfafd34529ed4f8522a275fea56"
-  integrity sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==
-
 errno@^0.1.3, errno@~0.1.7:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
@@ -3091,17 +3061,6 @@ escodegen@1.x.x, escodegen@^1.8.1:
   optionalDependencies:
     source-map "~0.6.1"
 
-eslint-loader@^1.7.1:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/eslint-loader/-/eslint-loader-1.9.0.tgz#7e1be9feddca328d3dcfaef1ad49d5beffe83a13"
-  integrity sha512-40aN976qSNPyb9ejTqjEthZITpls1SVKtwguahmH1dzGCwQU/vySE+xX33VZmD8csU0ahVNCtFlsPgKqRBiqgg==
-  dependencies:
-    loader-fs-cache "^1.0.0"
-    loader-utils "^1.0.2"
-    object-assign "^4.0.1"
-    object-hash "^1.1.4"
-    rimraf "^2.6.1"
-
 eslint-plugin-flowtype@^2.34.0:
   version "2.50.3"
   resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.50.3.tgz#61379d6dce1d010370acd6681740fd913d68175f"
@@ -3109,25 +3068,11 @@ eslint-plugin-flowtype@^2.34.0:
   dependencies:
     lodash "^4.17.10"
 
-eslint-plugin-html@^4.0.1:
-  version "4.0.6"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-html/-/eslint-plugin-html-4.0.6.tgz#724bb9272efb4df007dfee8dfb269ed83577e5b4"
-  integrity sha512-nj6A9oK+7BKnMm0E7dMRH3r75BfpkXtcVIb3pFC4AcDdBTNyg2NGxHXyFNT1emW4VsR7P2SZvRXXQtUR+kY08w==
-  dependencies:
-    htmlparser2 "^3.8.2"
-
 eslint-plugin-jasmine@^2.8.4:
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/eslint-plugin-jasmine/-/eslint-plugin-jasmine-2.10.1.tgz#5733b709e751f4bc40e31e1c16989bd2cdfbec97"
   integrity sha1-VzO3CedR9LxA4x4cFpib0s377Jc=
 
-eslint-plugin-vue-libs@^2.0.1:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-vue-libs/-/eslint-plugin-vue-libs-2.1.0.tgz#e7faf4ae11dad58553f63f907d6642e2d816dcef"
-  integrity sha512-FFiJJ3apqnXkb3+mIgr4juPKWXL/Bo4jORbW8qYpY78+iRzOLBDcOJGyD6z52h2kO5EqMRfzrfo4Q/28CUPuJw==
-  dependencies:
-    eslint-plugin-html "^4.0.1"
-
 eslint-scope@3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
@@ -3136,14 +3081,6 @@ eslint-scope@3.7.1:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
-eslint-scope@^3.7.1:
-  version "3.7.3"
-  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.3.tgz#bb507200d3d17f60247636160b4826284b108535"
-  integrity sha512-W+B0SvF4gamyCTmUc+uITPY0989iXVfKvhwtmJocTaYoc/3khEHmEmvfY/Gn9HA9VV75jrQECsHizkNw1b68FA==
-  dependencies:
-    esrecurse "^4.1.0"
-    estraverse "^4.1.1"
-
 eslint-scope@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-4.0.0.tgz#50bf3071e9338bcdc43331794a0cb533f0136172"
@@ -3152,62 +3089,67 @@ eslint-scope@^4.0.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-utils@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.3.1.tgz#9a851ba89ee7c460346f97cf8939c7298827e512"
+  integrity sha512-Z7YjnIldX+2XMcjr7ZkgEsOj/bREONV60qYeB/bjMAqqqZ4zxKyWX+BOUkdmRmA9riiIPVvo5x86m5elviOk0Q==
+
 eslint-visitor-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
   integrity sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==
 
-eslint@^4.13.1:
-  version "4.19.1"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.19.1.tgz#32d1d653e1d90408854bfb296f076ec7e186a300"
-  integrity sha512-bT3/1x1EbZB7phzYu7vCr1v3ONuzDtX8WjuM9c0iYxe+cq+pwcKEoQjl7zd3RpC6YOLgnSy3cTN58M2jcoPDIQ==
+eslint@^5.7.0:
+  version "5.7.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.7.0.tgz#55c326d6fb2ad45fcbd0ce17c3846f025d1d819c"
+  integrity sha512-zYCeFQahsxffGl87U2aJ7DPyH8CbWgxBC213Y8+TCanhUTf2gEvfq3EKpHmEcozTLyPmGe9LZdMAwC/CpJBM5A==
   dependencies:
-    ajv "^5.3.0"
-    babel-code-frame "^6.22.0"
+    "@babel/code-frame" "^7.0.0"
+    ajv "^6.5.3"
     chalk "^2.1.0"
-    concat-stream "^1.6.0"
-    cross-spawn "^5.1.0"
-    debug "^3.1.0"
+    cross-spawn "^6.0.5"
+    debug "^4.0.1"
     doctrine "^2.1.0"
-    eslint-scope "^3.7.1"
+    eslint-scope "^4.0.0"
+    eslint-utils "^1.3.1"
     eslint-visitor-keys "^1.0.0"
-    espree "^3.5.4"
-    esquery "^1.0.0"
+    espree "^4.0.0"
+    esquery "^1.0.1"
     esutils "^2.0.2"
     file-entry-cache "^2.0.0"
     functional-red-black-tree "^1.0.1"
     glob "^7.1.2"
-    globals "^11.0.1"
-    ignore "^3.3.3"
+    globals "^11.7.0"
+    ignore "^4.0.6"
     imurmurhash "^0.1.4"
-    inquirer "^3.0.6"
-    is-resolvable "^1.0.0"
-    js-yaml "^3.9.1"
+    inquirer "^6.1.0"
+    is-resolvable "^1.1.0"
+    js-yaml "^3.12.0"
     json-stable-stringify-without-jsonify "^1.0.1"
     levn "^0.3.0"
-    lodash "^4.17.4"
-    minimatch "^3.0.2"
+    lodash "^4.17.5"
+    minimatch "^3.0.4"
     mkdirp "^0.5.1"
     natural-compare "^1.4.0"
     optionator "^0.8.2"
     path-is-inside "^1.0.2"
     pluralize "^7.0.0"
     progress "^2.0.0"
-    regexpp "^1.0.1"
+    regexpp "^2.0.1"
     require-uncached "^1.0.3"
-    semver "^5.3.0"
+    semver "^5.5.1"
     strip-ansi "^4.0.0"
-    strip-json-comments "~2.0.1"
-    table "4.0.2"
-    text-table "~0.2.0"
+    strip-json-comments "^2.0.1"
+    table "^5.0.2"
+    text-table "^0.2.0"
 
-espree@^3.5.4:
-  version "3.5.4"
-  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
-  integrity sha512-yAcIQxtmMiB/jL32dzEp2enBeidsB7xWPLNiw3IIkpVds1P+h7qF9YwJq1yUNzp2OKXgAprs4F61ih66UsoD1A==
+espree@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-4.0.0.tgz#253998f20a0f82db5d866385799d912a83a36634"
+  integrity sha512-kapdTCt1bjmspxStVKX6huolXVV5ZfyZguY1lcfhVVZstce3bqxH9mcLzNn3/mlgW6wQ732+0fuG9v7h0ZQoKg==
   dependencies:
-    acorn "^5.5.0"
-    acorn-jsx "^3.0.0"
+    acorn "^5.6.0"
+    acorn-jsx "^4.1.1"
 
 esprima@2.7.x, esprima@^2.7.1:
   version "2.7.3"
@@ -3224,7 +3166,7 @@ esprima@^4.0.0:
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
   integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
 
-esquery@^1.0.0:
+esquery@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.1.tgz#406c51658b1f5991a5f9b62b1dc25b00e3e5c708"
   integrity sha512-SmiyZ5zIWH9VM+SRUReLS5Q8a7GxtRdxEBVZpm98rJM7Sb+A9DVCndXfkeFUd3byderg+EbDkfnevfCwynWaNA==
@@ -3397,7 +3339,7 @@ external-editor@^1.1.0:
     spawn-sync "^1.0.15"
     tmp "^0.0.29"
 
-external-editor@^2.0.1, external-editor@^2.0.4:
+external-editor@^2.0.1:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
   integrity sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==
@@ -3406,6 +3348,15 @@ external-editor@^2.0.1, external-editor@^2.0.4:
     iconv-lite "^0.4.17"
     tmp "^0.0.33"
 
+external-editor@^3.0.0:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-3.0.3.tgz#5866db29a97826dbe4bf3afd24070ead9ea43a27"
+  integrity sha512-bn71H9+qWoOQKyZDo25mOMVpSmXROAsTJVVVYzrrtol3d4y+AsKjf4Iwl2Q+IuT0kFSQ1qo166UuIwqYq7mGnA==
+  dependencies:
+    chardet "^0.7.0"
+    iconv-lite "^0.4.24"
+    tmp "^0.0.33"
+
 extglob@^0.3.1:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
@@ -3549,15 +3500,6 @@ finalhandler@1.1.0:
     statuses "~1.3.1"
     unpipe "~1.0.0"
 
-find-cache-dir@^0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-0.1.1.tgz#c8defae57c8a52a8a784f9e31c57c742e993a0b9"
-  integrity sha1-yN765XyKUqinhPnjHFfHQumToLk=
-  dependencies:
-    commondir "^1.0.1"
-    mkdirp "^0.5.1"
-    pkg-dir "^1.0.0"
-
 find-cache-dir@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-1.0.0.tgz#9288e3e9e3cc3748717d39eade17cf71fc30ee6f"
@@ -3956,7 +3898,7 @@ global-prefix@^0.1.4:
     is-windows "^0.2.0"
     which "^1.2.12"
 
-globals@^11.0.1, globals@^11.1.0:
+globals@^11.1.0, globals@^11.7.0:
   version "11.8.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.8.0.tgz#c1ef45ee9bed6badf0663c5cb90e8d1adec1321d"
   integrity sha512-io6LkyPVuzCHBSQV9fmOwxZkUk6nIaGmxheLDgmuFv89j0fm2aqDbIXKAGfzCMHqz3HLF2Zf8WSG6VqMh2qFmA==
@@ -4188,18 +4130,6 @@ hosted-git-info@^2.1.4:
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.7.1.tgz#97f236977bd6e125408930ff6de3eec6281ec047"
   integrity sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==
 
-htmlparser2@^3.8.2:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.10.0.tgz#5f5e422dcf6119c0d983ed36260ce9ded0bee464"
-  integrity sha512-J1nEUGv+MkXS0weHNWVKJJ+UrLfePxRWpN3C9bEi9fLxL2+ggW94DQvgYVXsaT30PGwYRIZKNZXuyMhp3Di4bQ==
-  dependencies:
-    domelementtype "^1.3.0"
-    domhandler "^2.3.0"
-    domutils "^1.5.1"
-    entities "^1.1.1"
-    inherits "^2.0.1"
-    readable-stream "^3.0.6"
-
 http-errors@1.6.3, http-errors@~1.6.3:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
@@ -4280,7 +4210,7 @@ iconv-lite@0.4.23:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+iconv-lite@^0.4.17, iconv-lite@^0.4.24, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -4304,10 +4234,10 @@ ignore-walk@^3.0.1:
   dependencies:
     minimatch "^3.0.4"
 
-ignore@^3.3.3:
-  version "3.3.10"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
-  integrity sha512-Pgs951kaMm5GXP7MOvxERINe3gsaVjUWFm+UZPSq9xYriQAksyhg0csnS0KXSNRD5NmNdapXEpjxG49+AKh/ug==
+ignore@^4.0.6:
+  version "4.0.6"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
+  integrity sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==
 
 imurmurhash@^0.1.4:
   version "0.1.4"
@@ -4393,22 +4323,21 @@ inquirer@3.0.6:
     strip-ansi "^3.0.0"
     through "^2.3.6"
 
-inquirer@^3.0.6:
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
-  integrity sha512-h+xtnyk4EwKvFWHrUYsWErEVR+igKtLdchu+o0Z1RL7VU/jVMFbYir2bp6bAj8efFNxWqHX0dIss6fJQ+/+qeQ==
+inquirer@^6.1.0:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-6.2.0.tgz#51adcd776f661369dc1e894859c2560a224abdd8"
+  integrity sha512-QIEQG4YyQ2UYZGDC4srMZ7BjHOmNk1lR2JQj5UknBapklm6WHA+VVH7N+sUdX3A7NeCfGF8o4X1S3Ao7nAcIeg==
   dependencies:
     ansi-escapes "^3.0.0"
     chalk "^2.0.0"
     cli-cursor "^2.1.0"
     cli-width "^2.0.0"
-    external-editor "^2.0.4"
+    external-editor "^3.0.0"
     figures "^2.0.0"
-    lodash "^4.3.0"
+    lodash "^4.17.10"
     mute-stream "0.0.7"
     run-async "^2.2.0"
-    rx-lite "^4.0.8"
-    rx-lite-aggregates "^4.0.8"
+    rxjs "^6.1.0"
     string-width "^2.1.0"
     strip-ansi "^4.0.0"
     through "^2.3.6"
@@ -4700,7 +4629,7 @@ is-regexp@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-regexp/-/is-regexp-1.0.0.tgz#fd2d883545c46bac5a633e7b9a09e87fa2cb5069"
   integrity sha1-/S2INUXEa6xaYz57mgnof6LLUGk=
 
-is-resolvable@^1.0.0:
+is-resolvable@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
   integrity sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==
@@ -4875,7 +4804,7 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
-js-yaml@3.x, js-yaml@^3.12.0, js-yaml@^3.9.0, js-yaml@^3.9.1:
+js-yaml@3.x, js-yaml@^3.12.0, js-yaml@^3.9.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
   integrity sha512-PIt2cnwmPfL4hKNwqeiuz4bKfnzHTBv6HyVgjahA6mPLwPDzjDWrplJBMjHUFxku/N3FlmrbyPclad+I+4mJ3A==
@@ -5221,14 +5150,6 @@ load-json-file@^4.0.0:
     pify "^3.0.0"
     strip-bom "^3.0.0"
 
-loader-fs-cache@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/loader-fs-cache/-/loader-fs-cache-1.0.1.tgz#56e0bf08bd9708b26a765b68509840c8dec9fdbc"
-  integrity sha1-VuC/CL2XCLJqdltoUJhAyN7J/bw=
-  dependencies:
-    find-cache-dir "^0.1.1"
-    mkdirp "0.5.1"
-
 loader-runner@^2.3.0:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.1.tgz#026f12fe7c3115992896ac02ba022ba92971b979"
@@ -5906,6 +5827,11 @@ netmask@~1.0.4:
   resolved "https://registry.yarnpkg.com/netmask/-/netmask-1.0.6.tgz#20297e89d86f6f6400f250d9f4f6b4c1945fcd35"
   integrity sha1-ICl+idhvb2QA8lDZ9Pa0wZRfzTU=
 
+nice-try@^1.0.4:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
+  integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
+
 nightwatch-helpers@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/nightwatch-helpers/-/nightwatch-helpers-1.2.0.tgz#cdefeb7635074a141825a7b6d1b955b6d7810a0f"
@@ -6114,11 +6040,6 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
-object-hash@^1.1.4:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.3.0.tgz#76d9ba6ff113cf8efc0d996102851fe6723963e2"
-  integrity sha512-05KzQ70lSeGSrZJQXE5wNDiTkBJDlUT/myi6RX9dVIvz7a7Qh4oH93BQdiPMn27nldYvVQCKMUaM83AfizZlsQ==
-
 object-keys@^1.0.12:
   version "1.0.12"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
@@ -6450,7 +6371,7 @@ path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
   integrity sha1-NlQX3t5EQw0cEa9hAn+s8HS9/FM=
 
-path-key@^2.0.0:
+path-key@^2.0.0, path-key@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
@@ -6541,13 +6462,6 @@ pirates@^4.0.0:
   dependencies:
     node-modules-regexp "^1.0.0"
 
-pkg-dir@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-1.0.0.tgz#7a4b508a8d5bb2d629d447056ff4e9c9314cf3d4"
-  integrity sha1-ektQio1bstYp1EcFb/TpyTFM89Q=
-  dependencies:
-    find-up "^1.0.0"
-
 pkg-dir@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-2.0.0.tgz#f6d5d1109e19d63edf428e0bd57e12777615334b"
@@ -6856,15 +6770,6 @@ readable-stream@1.1.x:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@^3.0.6:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.0.6.tgz#351302e4c68b5abd6a2ed55376a7f9a25be3057a"
-  integrity sha512-9E1oLoOWfhSXHGv6QlwXJim7uNzd9EVlWK+21tCU9Ju/kR0/p2AZYPz4qSchgO8PlLIH4FpZYfzwS+rEksZjIg==
-  dependencies:
-    inherits "^2.0.3"
-    string_decoder "^1.1.1"
-    util-deprecate "^1.0.1"
-
 readdirp@^2.0.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.2.1.tgz#0e87622a3325aa33e892285caf8b4e846529a525"
@@ -6941,10 +6846,10 @@ regex-not@^1.0.0, regex-not@^1.0.2:
     extend-shallow "^3.0.2"
     safe-regex "^1.1.0"
 
-regexpp@^1.0.1:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-1.1.0.tgz#0e3516dd0b7904f413d2d4193dce4618c3a689ab"
-  integrity sha512-LOPw8FpgdQF9etWMaAfG/WRthIdXJGYp4mJ2Jgn/2lpkbod9jPn0t9UqN7AxBOKNfzRbYyVfgc7Vk4t/MpnXgw==
+regexpp@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-2.0.1.tgz#8d19d31cf632482b589049f8281f93dbcba4d07f"
+  integrity sha512-lv0M6+TkDVniA3aD1Eg0DVpfU/booSu7Eev3TDO/mZKHBfVjgCGTV4t4buppESEYDtkArYFOxTJWv6S5C+iaNw==
 
 regexpu-core@^4.1.3, regexpu-core@^4.2.0:
   version "4.2.0"
@@ -7249,18 +7154,6 @@ run-queue@^1.0.0, run-queue@^1.0.3:
   dependencies:
     aproba "^1.1.1"
 
-rx-lite-aggregates@^4.0.8:
-  version "4.0.8"
-  resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
-  integrity sha1-dTuHqJoRyVRnxKwWJsTvxOBcZ74=
-  dependencies:
-    rx-lite "*"
-
-rx-lite@*, rx-lite@^4.0.8:
-  version "4.0.8"
-  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
-  integrity sha1-Cx4Rr4vESDbwSmQH6S2kJGe3lEQ=
-
 rx@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
@@ -7331,7 +7224,7 @@ semver-compare@^1.0.0:
   resolved "https://registry.yarnpkg.com/semver-compare/-/semver-compare-1.0.0.tgz#0dee216a1c941ab37e9efb1788f6afc5ff5537fc"
   integrity sha1-De4hahyUGrN+nvsXiPavxf9VN/w=
 
-"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
+"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.4.1, semver@^5.5.0, semver@^5.5.1:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
@@ -7766,7 +7659,7 @@ string-width@^1.0.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
-string_decoder@^1.0.0, string_decoder@^1.1.1, string_decoder@~1.1.1:
+string_decoder@^1.0.0, string_decoder@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
   integrity sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==
@@ -7835,7 +7728,7 @@ strip-indent@^2.0.0:
   resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-2.0.0.tgz#5ef8db295d01e6ed6cbf7aab96998d7822527b68"
   integrity sha1-XvjbKV0B5u1sv3qrlpmNeCJSe2g=
 
-strip-json-comments@2.0.1, strip-json-comments@~2.0.1:
+strip-json-comments@2.0.1, strip-json-comments@^2.0.1, strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
@@ -7871,15 +7764,13 @@ symbol-observable@^1.1.0:
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
   integrity sha512-e900nM8RRtGhlV36KGEU9k65K3mPb1WV70OdjfxlG2EAuM1noi/E/BaW/uMhL7bPEssK8QV57vN3esixjUvcXQ==
 
-table@4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
-  integrity sha512-UUkEAPdSGxtRpiV9ozJ5cMTtYiqz7Ni1OGqLXRCynrvzdtR1p+cfOWe2RJLwvUG8hNanaSRjecIqwOjqeatDsA==
+table@^5.0.2:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/table/-/table-5.1.0.tgz#69a54644f6f01ad1628f8178715b408dc6bf11f7"
+  integrity sha512-e542in22ZLhD/fOIuXs/8yDZ9W61ltF8daM88rkRNtgTIct+vI2fTnAyu/Db2TCfEcI8i7mjZz6meLq0nW7TYg==
   dependencies:
-    ajv "^5.2.3"
-    ajv-keywords "^2.1.0"
-    chalk "^2.1.0"
-    lodash "^4.17.4"
+    ajv "^6.5.3"
+    lodash "^4.17.10"
     slice-ansi "1.0.0"
     string-width "^2.1.1"
 
@@ -7938,7 +7829,7 @@ text-extensions@^1.0.0:
   resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.9.0.tgz#1853e45fee39c945ce6f6c36b2d659b5aabc2a26"
   integrity sha512-wiBrwC1EhBelW12Zy26JeOUkQ5mRu+5o8rpsJk5+2t+Y5vE7e842qtZDQ2g1NpX/29HdyFeJ4nSIhI47ENSxlQ==
 
-text-table@~0.2.0:
+text-table@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
   integrity sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=
@@ -8274,7 +8165,7 @@ useragent@2.2.1:
     lru-cache "2.2.x"
     tmp "0.0.x"
 
-util-deprecate@^1.0.1, util-deprecate@~1.0.1:
+util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
   integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=

From 9d2f9a034f9c40d5ba6d8b1e131b1bfb675dc1cf Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Thu, 25 Oct 2018 00:10:58 +0800
Subject: [PATCH 533/911] fix(sfc): avoid deindent when pad option is specified
 (#7647)

---
 src/sfc/parser.js                        |  8 ++++--
 test/unit/modules/sfc/sfc-parser.spec.js | 33 +++++++++++++++++++-----
 2 files changed, 33 insertions(+), 8 deletions(-)

diff --git a/src/sfc/parser.js b/src/sfc/parser.js
index d7868a40ab8..f6e83d362a3 100644
--- a/src/sfc/parser.js
+++ b/src/sfc/parser.js
@@ -83,11 +83,15 @@ export function parseComponent (
   function end (tag: string, start: number) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start
-      let text = deindent(content.slice(currentBlock.start, currentBlock.end))
+      let text = content.slice(currentBlock.start, currentBlock.end)
       // pad content so that linters and pre-processors can output correct
       // line numbers in errors and warnings
-      if (currentBlock.type !== 'template' && options.pad) {
+      if (options.pad) {
         text = padContent(currentBlock, options.pad) + text
+      } else {
+        // avoid to deindent if pad option is specified
+        // to retain original source position.
+        text = deindent(text)
       }
       currentBlock.content = text
       currentBlock = null
diff --git a/test/unit/modules/sfc/sfc-parser.spec.js b/test/unit/modules/sfc/sfc-parser.spec.js
index 4cf6bad574a..30a9f9e2c43 100644
--- a/test/unit/modules/sfc/sfc-parser.spec.js
+++ b/test/unit/modules/sfc/sfc-parser.spec.js
@@ -71,21 +71,42 @@ describe('Single File Component parser', () => {
     const padLine = parseComponent(content.trim(), { pad: 'line' })
     const padSpace = parseComponent(content.trim(), { pad: 'space' })
 
-    expect(padDefault.script.content).toBe(Array(3 + 1).join('//\n') + '\nexport default {}\n')
-    expect(padDefault.styles[0].content).toBe(Array(6 + 1).join('\n') + '\nh1 { color: red }\n')
-    expect(padLine.script.content).toBe(Array(3 + 1).join('//\n') + '\nexport default {}\n')
-    expect(padLine.styles[0].content).toBe(Array(6 + 1).join('\n') + '\nh1 { color: red }\n')
+    expect(padDefault.template.content).toBe(Array(1).join('\n') + `
+        <div></div>
+      `)
+    expect(padDefault.script.content).toBe(Array(3 + 1).join('//\n') + `
+        export default {}
+      `)
+    expect(padDefault.styles[0].content).toBe(Array(6 + 1).join('\n') + `
+        h1 { color: red }
+      `)
+    expect(padLine.template.content).toBe(Array(1).join('\n') + `
+        <div></div>
+      `)
+    expect(padLine.script.content).toBe(Array(3 + 1).join('//\n') + `
+        export default {}
+      `)
+    expect(padLine.styles[0].content).toBe(Array(6 + 1).join('\n') + `
+        h1 { color: red }
+      `)
+    expect(padSpace.template.content).toBe(`<template>`.replace(/./g, ' ') + `
+        <div></div>
+      `)
     expect(padSpace.script.content).toBe(`<template>
         <div></div>
       </template>
-      <script>`.replace(/./g, ' ') + '\nexport default {}\n')
+      <script>`.replace(/./g, ' ') + `
+        export default {}
+      `)
     expect(padSpace.styles[0].content).toBe(`<template>
         <div></div>
       </template>
       <script>
         export default {}
       </script>
-      <style>`.replace(/./g, ' ') + '\nh1 { color: red }\n')
+      <style>`.replace(/./g, ' ') + `
+        h1 { color: red }
+      `)
   })
 
   it('should handle template blocks with lang as special text', () => {

From 7597bb06e0d9ba142f894de5b90b2bf2d7765e08 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 24 Oct 2018 12:42:53 -0400
Subject: [PATCH 534/911] test: fix ssr tests

---
 test/ssr/compile-with-webpack.js |  1 +
 test/ssr/ssr-template.spec.js    | 12 ++++++------
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/test/ssr/compile-with-webpack.js b/test/ssr/compile-with-webpack.js
index 765898e966d..6e648c8b489 100644
--- a/test/ssr/compile-with-webpack.js
+++ b/test/ssr/compile-with-webpack.js
@@ -4,6 +4,7 @@ import MemoryFS from 'memory-fs'
 
 export function compileWithWebpack (file, extraConfig, cb) {
   const config = Object.assign({
+    mode: 'development',
     entry: path.resolve(__dirname, 'fixtures', file),
     module: {
       rules: [
diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index d93528466bb..63b94e112e3 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -1,4 +1,3 @@
-import webpack from 'webpack'
 import Vue from '../../dist/vue.runtime.common.js'
 import { compileWithWebpack } from './compile-with-webpack'
 import { createRenderer } from '../../packages/vue-server-renderer'
@@ -14,11 +13,12 @@ function generateClientManifest (file, cb) {
       path: '/',
       filename: '[name].js'
     },
+    optimization: {
+      runtimeChunk: {
+        name: 'manifest'
+      }
+    },
     plugins: [
-      new webpack.optimize.CommonsChunkPlugin({
-        name: 'manifest',
-        minChunks: Infinity
-      }),
       new VueSSRClientPlugin()
     ]
   }, fs => {
@@ -227,8 +227,8 @@ describe('SSR: template option', () => {
       `<link rel="preload" href="/0.js" as="script">` +
       `<link rel="preload" href="/test.css" as="style">` +
       // images and fonts are only preloaded when explicitly asked for
-      (options.preloadOtherAssets ? `<link rel="preload" href="/test.woff2" as="font" type="font/woff2" crossorigin>` : ``) +
       (options.preloadOtherAssets ? `<link rel="preload" href="/test.png" as="image">` : ``) +
+      (options.preloadOtherAssets ? `<link rel="preload" href="/test.woff2" as="font" type="font/woff2" crossorigin>` : ``) +
       // unused chunks should have prefetch
       (options.noPrefetch ? `` : `<link rel="prefetch" href="/1.js">`) +
       // css assets should be loaded

From db7287c23b11bdc032fb0786e6617f3c6c40c835 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Wed, 24 Oct 2018 18:45:06 +0200
Subject: [PATCH 535/911] fix(shared): check dates in looseEqual (#7940)

Fix #7928
thanks to @w3cj for the initial version. This one is using getTime instead of toUTCString because it
is much faster to compare
---
 src/shared/util.js                            |  2 ++
 .../features/directives/model-select.spec.js  | 27 +++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/src/shared/util.js b/src/shared/util.js
index fda18467699..f4a503b0e93 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -286,6 +286,8 @@ export function looseEqual (a: any, b: any): boolean {
         return a.length === b.length && a.every((e, i) => {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         const keysA = Object.keys(a)
         const keysB = Object.keys(b)
diff --git a/test/unit/features/directives/model-select.spec.js b/test/unit/features/directives/model-select.spec.js
index c961224972b..2bf5cb4d357 100644
--- a/test/unit/features/directives/model-select.spec.js
+++ b/test/unit/features/directives/model-select.spec.js
@@ -588,4 +588,31 @@ describe('Directive v-model select', () => {
       }).then(done)
     })
   })
+
+  // #7928
+  it('should correctly handle option with date value', done => {
+    const vm = new Vue({
+      data: {
+        dates: [
+          new Date(1520000000000),
+          new Date(1522000000000),
+          new Date(1516000000000)
+        ],
+        selectedDate: null
+      },
+      template:
+        '<div>' +
+          '<select v-model="selectedDate">' +
+            '<option v-for="(date, i) in dates" :key="i" :value="date">' +
+              '{{date}}' +
+            '</option>' +
+          '</select>' +
+        '</div>'
+    }).$mount()
+
+    vm.selectedDate = vm.dates[2]
+    waitForUpdate(() => {
+      expect(vm.$el.firstChild.selectedIndex).toBe(2)
+    }).then(done)
+  })
 })

From 1b69cbde74fd1d183a0c8afd72e774b8bf1daa89 Mon Sep 17 00:00:00 2001
From: Yuhang Liu <644186735@qq.com>
Date: Thu, 25 Oct 2018 00:46:38 +0800
Subject: [PATCH 536/911] refactor: add empty v-bind warning(re #7973) (#7988)

* refactor: add empty v-bind warnings

re #7973

* Update index.js
---
 src/compiler/parser/index.js              | 8 ++++++++
 test/unit/modules/compiler/parser.spec.js | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index a603b36bb55..c62358909de 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -528,6 +528,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '')
         value = parseFilters(value)
         isProp = false
+        if (
+          process.env.NODE_ENV !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn(
+            `The value for a v-bind expression cannot be empty. Found in "v-bind:${name}"`
+          )
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 750e371105f..5e701bba5d3 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -510,6 +510,11 @@ describe('parser', () => {
     expect(ast.props[0].value).toBe('msg')
   })
 
+  it('empty v-bind expression', () => {
+    parse('<div :empty-msg=""></div>', baseOptions)
+    expect('The value for a v-bind expression cannot be empty. Found in "empty-msg"').toHaveBeenWarned()
+  })
+
   // #6887
   it('special case static attribute that must be props', () => {
     const ast = parse('<video muted></video>', baseOptions)

From ecc239e47516d7f9a93b2cd49da4a2000960b8f7 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Wed, 24 Oct 2018 18:48:07 +0200
Subject: [PATCH 537/911] fix(for): use IE compatible regex in v-for regex
 (#8048)

Closes #7946
---
 src/compiler/parser/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index c62358909de..880a3197755 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -21,7 +21,7 @@ import {
 
 export const onRE = /^@|^v-on:/
 export const dirRE = /^v-|^@|^:/
-export const forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/
+export const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
 

From f5b5b3c96f00a321e0ba41f0d33a42b2338ef750 Mon Sep 17 00:00:00 2001
From: xudaashuai <xudashuai0819@outlook.com>
Date: Thu, 25 Oct 2018 00:48:58 +0800
Subject: [PATCH 538/911] chore: use template strings in config.js (#8113)

---
 scripts/config.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/config.js b/scripts/config.js
index 1432ecd1fbb..730ddc2aacb 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -10,8 +10,8 @@ const weexVersion = process.env.WEEX_VERSION || require('../packages/weex-vue-fr
 
 const banner =
   '/*!\n' +
-  ' * Vue.js v' + version + '\n' +
-  ' * (c) 2014-' + new Date().getFullYear() + ' Evan You\n' +
+  ` * Vue.js v${version}\n` +
+  ` * (c) 2014-${new Date().getFullYear()} Evan You\n` +
   ' * Released under the MIT License.\n' +
   ' */'
 

From aef2a5f3dbd5e52ec9d5ce026d7b858539057186 Mon Sep 17 00:00:00 2001
From: Jovino Xu <xujiongbo@gmail.com>
Date: Thu, 25 Oct 2018 00:50:42 +0800
Subject: [PATCH 539/911] fix(compiler): maybeComponent should return true when
 "is" attribute exists (#8114)

close #8101
---
 src/compiler/codegen/index.js              | 2 +-
 test/unit/modules/compiler/codegen.spec.js | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index fc376bc1aee..dd2e62b85fb 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -26,7 +26,7 @@ export class CodegenState {
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData')
     this.directives = extend(extend({}, baseDirectives), options.directives)
     const isReservedTag = options.isReservedTag || no
-    this.maybeComponent = (el: ASTElement) => !isReservedTag(el.tag)
+    this.maybeComponent = (el: ASTElement) => !(isReservedTag(el.tag) && !el.component)
     this.onceId = 0
     this.staticRenderFns = []
   }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 93a27f3b245..126453555f1 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -524,6 +524,11 @@ describe('codegen', () => {
       '<div :is="component1"></div>',
       `with(this){return _c(component1,{tag:"div"})}`
     )
+    // maybe a component and normalize type should be 1
+    assertCodegen(
+      '<div><div is="component1"></div></div>',
+      `with(this){return _c('div',[_c("component1",{tag:"div"})],1)}`
+    )
   })
 
   it('generate component with inline-template', () => {

From e9fc04ba50782c15703392272322e277fb92dd9a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 24 Oct 2018 12:58:21 -0400
Subject: [PATCH 540/911] test: fix assertion

---
 test/unit/modules/compiler/parser.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 5e701bba5d3..5ab0398990a 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -512,7 +512,7 @@ describe('parser', () => {
 
   it('empty v-bind expression', () => {
     parse('<div :empty-msg=""></div>', baseOptions)
-    expect('The value for a v-bind expression cannot be empty. Found in "empty-msg"').toHaveBeenWarned()
+    expect('The value for a v-bind expression cannot be empty. Found in "v-bind:empty-msg"').toHaveBeenWarned()
   })
 
   // #6887

From 61c32cc6732aaf225d868cee79872d9d9fdd5dcc Mon Sep 17 00:00:00 2001
From: DongGyu Lee <donggyu.lee@nts-corp.com>
Date: Thu, 25 Oct 2018 02:01:02 +0900
Subject: [PATCH 541/911] Fix: block unnecessary input event on input tag
 placeholder in IE (#8140)

---
 src/platforms/web/runtime/modules/attrs.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index 78ef28a1d02..61d004ed239 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -97,7 +97,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       const blocker = e => {

From ecac831691d27cf7a10ec73a004d3fbad7623d1a Mon Sep 17 00:00:00 2001
From: Kevin Ball <kmball11@gmail.com>
Date: Wed, 24 Oct 2018 10:01:29 -0700
Subject: [PATCH 542/911] fix(compiler): templates inside v-pre should be
 rendered to HTML (#8146)

close #8041
---
 src/compiler/codegen/index.js              | 12 +++++++++++-
 test/unit/modules/compiler/codegen.spec.js | 12 ++++++++++++
 test/unit/modules/compiler/parser.spec.js  |  9 +++++++++
 3 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index dd2e62b85fb..4afc4711c2f 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -18,6 +18,7 @@ export class CodegenState {
   maybeComponent: (el: ASTElement) => boolean;
   onceId: number;
   staticRenderFns: Array<string>;
+  pre: boolean;
 
   constructor (options: CompilerOptions) {
     this.options = options
@@ -29,6 +30,7 @@ export class CodegenState {
     this.maybeComponent = (el: ASTElement) => !(isReservedTag(el.tag) && !el.component)
     this.onceId = 0
     this.staticRenderFns = []
+    this.pre = false
   }
 }
 
@@ -58,7 +60,7 @@ export function genElement (el: ASTElement, state: CodegenState): string {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -88,7 +90,15 @@ export function genElement (el: ASTElement, state: CodegenState): string {
 // hoist static sub-trees out
 function genStatic (el: ASTElement, state: CodegenState): string {
   el.staticProcessed = true
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  const originalPreState = state.pre
+  if (el.pre) {
+    state.pre = el.pre
+  }
   state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`)
+  state.pre = originalPreState
   return `_m(${
     state.staticRenderFns.length - 1
   }${
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 126453555f1..0758142ed27 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -595,6 +595,18 @@ describe('codegen', () => {
     expect(res.render).toBe(generatedCode)
   })
 
+  // #8041
+  it('does not squash templates inside v-pre', () => {
+    const template = '<div v-pre><template><p>{{msg}}</p></template></div>'
+    const generatedCode = `with(this){return _m(0)}`
+    const renderFn = `with(this){return _c('div',{pre:true},[_c('template',[_c('p',[_v("{{msg}}")])])],2)}`
+    const ast = parse(template, baseOptions)
+    optimize(ast, baseOptions)
+    const res = generate(ast, baseOptions)
+    expect(res.render).toBe(generatedCode)
+    expect(res.staticRenderFns).toEqual([renderFn])
+  })
+
   it('not specified ast type', () => {
     const res = generate(null, baseOptions)
     expect(res.render).toBe(`with(this){return _c("div")}`)
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 5ab0398990a..1cdaa3b7171 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -250,6 +250,15 @@ describe('parser', () => {
     expect(ast.children[0].children[0].text).toBe('{{msg}}')
   })
 
+  it('v-pre directive should leave template in DOM', () => {
+    const ast = parse('<div v-pre id="message1"><template id="template1"><p>{{msg}}</p></template></div>', baseOptions)
+    expect(ast.pre).toBe(true)
+    expect(ast.attrs[0].name).toBe('id')
+    expect(ast.attrs[0].value).toBe('"message1"')
+    expect(ast.children[0].attrs[0].name).toBe('id')
+    expect(ast.children[0].attrs[0].value).toBe('"template1"')
+  })
+
   it('v-for directive basic syntax', () => {
     const ast = parse('<ul><li v-for="item in items"></li></ul>', baseOptions)
     const liAst = ast.children[0]

From 46b8d2c59dc259995a71662229ed52b8b8beeb38 Mon Sep 17 00:00:00 2001
From: Herrington Darkholme
 <2883231+HerringtonDarkholme@users.noreply.github.com>
Date: Thu, 25 Oct 2018 01:02:11 +0800
Subject: [PATCH 543/911] fix(server): use path.posix.join to generate public
 path (#8177)

fix #8167
---
 src/server/template-renderer/index.js | 14 +++++++++-----
 test/ssr/ssr-template.spec.js         |  1 +
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index a6a1570c6b7..2c95e31fd5a 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -60,7 +60,7 @@ export default class TemplateRenderer {
     // extra functionality with client manifest
     if (options.clientManifest) {
       const clientManifest = this.clientManifest = options.clientManifest
-      this.publicPath = clientManifest.publicPath.replace(/\/$/, '')
+      this.publicPath = clientManifest.publicPath
       // preload/prefetch directives
       this.preloadFiles = (clientManifest.initial || []).map(normalizeFile)
       this.prefetchFiles = (clientManifest.async || []).map(normalizeFile)
@@ -114,7 +114,7 @@ export default class TemplateRenderer {
     return (
       // render links for css files
       (cssFiles.length
-        ? cssFiles.map(({ file }) => `<link rel="stylesheet" href="${this.publicPath}/${file}">`).join('')
+        ? cssFiles.map(({ file }) => `<link rel="stylesheet" href="${this.getPublicPath(file)}">`).join('')
         : '') +
       // context.styles is a getter exposed by vue-style-loader which contains
       // the inline component styles collected during SSR
@@ -153,7 +153,7 @@ export default class TemplateRenderer {
           extra = ` type="font/${extension}" crossorigin`
         }
         return `<link rel="preload" href="${
-          this.publicPath}/${file
+          this.getPublicPath(file)
         }"${
           asType !== '' ? ` as="${asType}"` : ''
         }${
@@ -179,7 +179,7 @@ export default class TemplateRenderer {
         if (alreadyRendered(file)) {
           return ''
         }
-        return `<link rel="prefetch" href="${this.publicPath}/${file}">`
+        return `<link rel="prefetch" href="${this.getPublicPath(file)}">`
       }).join('')
     } else {
       return ''
@@ -206,7 +206,7 @@ export default class TemplateRenderer {
       const async = (this.getUsedAsyncFiles(context) || []).filter(({ file }) => isJS(file))
       const needed = [initial[0]].concat(async || [], initial.slice(1))
       return needed.map(({ file }) => {
-        return `<script src="${this.publicPath}/${file}" defer></script>`
+        return `<script src="${this.getPublicPath(file)}" defer></script>`
       }).join('')
     } else {
       return ''
@@ -228,6 +228,10 @@ export default class TemplateRenderer {
     }
     return new TemplateStream(this, this.parsedTemplate, context || {})
   }
+
+  getPublicPath (file: string) {
+    return path.posix.join(this.publicPath, file)
+  }
 }
 
 function normalizeFile (file: string): Resource {
diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index 63b94e112e3..2491b591d87 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -11,6 +11,7 @@ function generateClientManifest (file, cb) {
   compileWithWebpack(file, {
     output: {
       path: '/',
+      publicPath: '/',
       filename: '[name].js'
     },
     optimization: {

From bf2e2ed159f680cd4e230427ce94739c657c1b61 Mon Sep 17 00:00:00 2001
From: Zev Goldstein <Zev.Goldstein@gmail.com>
Date: Wed, 24 Oct 2018 13:03:29 -0400
Subject: [PATCH 544/911] types: allow functional components to return multiple
 VNodes (#8192)

close #8191
---
 types/options.d.ts         |  2 +-
 types/test/options-test.ts | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 8ae8f93599c..276a5b32f7a 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -113,7 +113,7 @@ export interface FunctionalComponentOptions<Props = DefaultProps, PropDefs = Pro
   props?: PropDefs;
   inject?: InjectOptions;
   functional: boolean;
-  render?(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode;
+  render?(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode | VNode[];
 }
 
 export interface RenderContext<Props=DefaultProps> {
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 83972d05c1d..204b0dad262 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -354,6 +354,16 @@ Vue.component('functional-component-check-optional', {
   functional: true
 })
 
+Vue.component('functional-component-multi-root', {
+  functional: true,
+  render(h) {
+    return [
+      h("tr", [h("td", "foo"), h("td", "bar")]),
+      h("tr", [h("td", "lorem"), h("td", "ipsum")])
+    ]
+  }
+})
+
 Vue.component("async-component", ((resolve, reject) => {
   setTimeout(() => {
     resolve(Vue.component("component"));

From 496635e7c9e56b30c3993c4c1dcb27559327e999 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Wed, 24 Oct 2018 19:03:48 +0200
Subject: [PATCH 545/911] types: add model option to functional components
 (#8212)

Closes #8210
---
 types/options.d.ts         |  4 ++++
 types/test/options-test.ts | 20 ++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/types/options.d.ts b/types/options.d.ts
index 276a5b32f7a..bd96b6476d3 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -111,6 +111,10 @@ export interface ComponentOptions<
 export interface FunctionalComponentOptions<Props = DefaultProps, PropDefs = PropsDefinition<Props>> {
   name?: string;
   props?: PropDefs;
+  model?: {
+    prop?: string;
+    event?: string;
+  };
   inject?: InjectOptions;
   functional: boolean;
   render?(this: undefined, createElement: CreateElement, context: RenderContext<Props>): VNode | VNode[];
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 204b0dad262..5ee4c6bd8a6 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -376,4 +376,24 @@ Vue.component("async-component", ((resolve, reject) => {
   })
 }));
 
+Vue.component('functional-component-v-model', {
+  props: ['foo'],
+  functional: true,
+  model: {
+    prop: 'foo',
+    event: 'change'
+  },
+  render(createElement, context) {
+    return createElement("input", {
+      on: {
+        input: new Function()
+      },
+      domProps: {
+        value: context.props.foo
+      }
+    });
+  }
+});
+
+
 Vue.component('async-es-module-component', () => import('./es-module'))

From 952ae33290d46b95b2f441fd336b71ffbae1dd27 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Wed, 24 Oct 2018 19:04:56 +0200
Subject: [PATCH 546/911] =?UTF-8?q?polish:=20warn=20when=20an=20existing?=
 =?UTF-8?q?=20property=20starting=20with=20$=20is=20not=20pro=E2=80=A6=20(?=
 =?UTF-8?q?#8214)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/core/instance/proxy.js                    | 19 ++++++--
 .../features/instance/render-proxy.spec.js    | 44 +++++++++++++++++++
 2 files changed, 60 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/proxy.js b/src/core/instance/proxy.js
index 8c821baa09b..08d96513254 100644
--- a/src/core/instance/proxy.js
+++ b/src/core/instance/proxy.js
@@ -24,6 +24,16 @@ if (process.env.NODE_ENV !== 'production') {
     )
   }
 
+  const warnReservedPrefix = (target, key) => {
+    warn(
+      `Property "${key}" must be accessed with "$data.${key}" because ` +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    )
+  }
+
   const hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy)
 
@@ -45,9 +55,11 @@ if (process.env.NODE_ENV !== 'production') {
   const hasHandler = {
     has (target, key) {
       const has = key in target
-      const isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_')
+      const isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data))
       if (!has && !isAllowed) {
-        warnNonPresent(target, key)
+        if (key in target.$data) warnReservedPrefix(target, key)
+        else warnNonPresent(target, key)
       }
       return has || !isAllowed
     }
@@ -56,7 +68,8 @@ if (process.env.NODE_ENV !== 'production') {
   const getHandler = {
     get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key)
+        if (key in target.$data) warnReservedPrefix(target, key)
+        else warnNonPresent(target, key)
       }
       return target[key]
     }
diff --git a/test/unit/features/instance/render-proxy.spec.js b/test/unit/features/instance/render-proxy.spec.js
index 9a2365ae4c1..8da17172608 100644
--- a/test/unit/features/instance/render-proxy.spec.js
+++ b/test/unit/features/instance/render-proxy.spec.js
@@ -45,5 +45,49 @@ if (typeof Proxy !== 'undefined') {
 
       expect(vm.$el.textContent).toBe('foo')
     })
+
+    it('should warn properties starting with $ when found', () => {
+      new Vue({
+        data: { $a: 'foo' },
+        template: `<div>{{ $a }}</div>`
+      }).$mount()
+      expect(`Property "$a" must be accessed with "$data.$a"`).toHaveBeenWarned()
+    })
+
+    it('should warn properties starting with _ when found', () => {
+      new Vue({
+        data: { _foo: 'foo' },
+        template: `<div>{{ _foo }}</div>`
+      }).$mount()
+      expect(`Property "_foo" must be accessed with "$data._foo"`).toHaveBeenWarned()
+    })
+
+    it('should warn properties starting with $ when not found', () => {
+      new Vue({
+        template: `<div>{{ $a }}</div>`
+      }).$mount()
+      expect(`Property or method "$a" is not defined`).toHaveBeenWarned()
+      expect(`Property "$a" must be accessed with "$data.$a"`).not.toHaveBeenWarned()
+    })
+
+    it('should warn properties starting with $ when not found (with stripped)', () => {
+      const render = function (h) {
+        return h('p', this.$a)
+      }
+      render._withStripped = true
+      new Vue({
+        data: { $a: 'foo' },
+        render
+      }).$mount()
+      expect(`Property "$a" must be accessed with "$data.$a"`).toHaveBeenWarned()
+    })
+
+    it('should not warn properties starting with $ when using $data to access', () => {
+      new Vue({
+        data: { $a: 'foo' },
+        template: `<div>{{ $data.$a }}</div>`
+      }).$mount()
+      expect(`Property or method "$a" is not defined`).not.toHaveBeenWarned()
+    })
   })
 }

From bfd722bb5d4a489a7c9f9b0f6681bf6f83f21bb5 Mon Sep 17 00:00:00 2001
From: Kael <kaelwd@gmail.com>
Date: Thu, 25 Oct 2018 04:05:15 +1100
Subject: [PATCH 547/911] types: add refInFor to VNodeData (#8229)

---
 types/test/options-test.ts | 3 ++-
 types/vnode.d.ts           | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 5ee4c6bd8a6..1c6ecff6daa 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -176,7 +176,8 @@ Vue.component('component', {
         fontSize: '14px'
       },
       key: 'myKey',
-      ref: 'myRef'
+      ref: 'myRef',
+      refInFor: true
     }, [
       createElement(),
       createElement("div", "message"),
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index 9247c474575..fb18bb83286 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -36,6 +36,7 @@ export interface VNodeData {
   slot?: string;
   scopedSlots?: { [key: string]: ScopedSlot };
   ref?: string;
+  refInFor?: boolean;
   tag?: string;
   staticClass?: string;
   class?: any;

From 038ed86967b70a8b7305104e63afaa586857af48 Mon Sep 17 00:00:00 2001
From: yongningfu <535802703@qq.com>
Date: Thu, 25 Oct 2018 01:05:48 +0800
Subject: [PATCH 548/911] polish(compiler): remove the extra space of v-for
 alias (#8233)

---
 src/compiler/parser/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 880a3197755..5bf124b4160 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -375,7 +375,7 @@ export function parseFor (exp: string): ?ForParseResult {
   const alias = inMatch[1].trim().replace(stripParensRE, '')
   const iteratorMatch = alias.match(forIteratorRE)
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '')
+    res.alias = alias.replace(forIteratorRE, '').trim()
     res.iterator1 = iteratorMatch[1].trim()
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim()

From 5cfdf1a2484fa73b572eae4afd196dcf9e1912ba Mon Sep 17 00:00:00 2001
From: Alex Ivasyuv <industral@users.noreply.github.com>
Date: Wed, 24 Oct 2018 20:06:17 +0300
Subject: [PATCH 549/911] fix: handle undefined style properties in jsdom (fix
 #7444) (#8281)

---
 src/platforms/web/runtime/transition-util.js | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/platforms/web/runtime/transition-util.js b/src/platforms/web/runtime/transition-util.js
index 47668f0c37d..706210141fc 100644
--- a/src/platforms/web/runtime/transition-util.js
+++ b/src/platforms/web/runtime/transition-util.js
@@ -122,11 +122,12 @@ export function getTransitionInfo (el: Element, expectedType?: ?string): {
   hasTransform: boolean;
 } {
   const styles: any = window.getComputedStyle(el)
-  const transitionDelays: Array<string> = styles[transitionProp + 'Delay'].split(', ')
-  const transitionDurations: Array<string> = styles[transitionProp + 'Duration'].split(', ')
+  // JSDOM may return undefined for transition properties
+  const transitionDelays: Array<string> = (styles[transitionProp + 'Delay'] || '').split(', ')
+  const transitionDurations: Array<string> = (styles[transitionProp + 'Duration'] || '').split(', ')
   const transitionTimeout: number = getTimeout(transitionDelays, transitionDurations)
-  const animationDelays: Array<string> = styles[animationProp + 'Delay'].split(', ')
-  const animationDurations: Array<string> = styles[animationProp + 'Duration'].split(', ')
+  const animationDelays: Array<string> = (styles[animationProp + 'Delay'] || '').split(', ')
+  const animationDurations: Array<string> = (styles[animationProp + 'Duration'] || '').split(', ')
   const animationTimeout: number = getTimeout(animationDelays, animationDurations)
 
   let type: ?string

From 5489339a30e25d1bdea4492ea253144ede0d31f1 Mon Sep 17 00:00:00 2001
From: Sam Lichlyter <slichlyter12@users.noreply.github.com>
Date: Wed, 24 Oct 2018 10:07:40 -0700
Subject: [PATCH 550/911] refactor(core): Replace "var" (#8299)

Replaces instances of "var" with "let" and "const" where applicable using the eslint 'no-var' and
'prefer-const' rules
---
 scripts/build.js                              |  2 +-
 scripts/get-weex-version.js                   |  8 ++++----
 .../runtime/components/transition-group.js    |  4 ++--
 src/platforms/web/util/style.js               |  2 +-
 src/platforms/weex/runtime/modules/style.js   |  2 +-
 test/e2e/runner.js                            | 14 ++++++-------
 test/e2e/specs/grid.js                        |  6 +++---
 test/e2e/specs/svg.js                         | 12 +++++------
 test/e2e/specs/tree.js                        |  4 ++--
 test/helpers/to-have-been-warned.js           |  6 +++---
 test/helpers/trigger-event.js                 |  2 +-
 test/ssr/ssr-stream.spec.js                   |  6 +++---
 .../component/component-async.spec.js         |  4 ++--
 .../component/component-keep-alive.spec.js    |  2 +-
 test/unit/features/directives/class.spec.js   |  2 +-
 test/unit/features/directives/for.spec.js     |  4 ++--
 .../features/directives/model-radio.spec.js   |  4 ++--
 .../features/directives/model-select.spec.js  | 20 +++++++++----------
 .../features/directives/model-text.spec.js    |  2 +-
 test/unit/features/directives/style.spec.js   |  8 ++++----
 .../features/instance/methods-data.spec.js    |  4 ++--
 .../features/instance/methods-events.spec.js  |  2 +-
 test/unit/features/options/functional.spec.js |  8 ++++----
 test/unit/features/options/watch.spec.js      | 12 +++++------
 .../unit/features/transition/inject-styles.js |  2 +-
 test/unit/karma.base.config.js                |  6 +++---
 test/unit/karma.cover.config.js               |  4 ++--
 test/unit/karma.dev.config.js                 |  2 +-
 test/unit/karma.sauce.config.js               |  8 ++++----
 test/unit/karma.unit.config.js                |  2 +-
 30 files changed, 82 insertions(+), 82 deletions(-)

diff --git a/scripts/build.js b/scripts/build.js
index 271471488ec..9d0e81e4a68 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -48,7 +48,7 @@ function buildEntry (config) {
     .then(bundle => bundle.generate(output))
     .then(({ code }) => {
       if (isProd) {
-        var minified = (banner ? banner + '\n' : '') + terser.minify(code, {
+        const minified = (banner ? banner + '\n' : '') + terser.minify(code, {
           output: {
             ascii_only: true
           },
diff --git a/scripts/get-weex-version.js b/scripts/get-weex-version.js
index d701c4320bc..f66492b37df 100644
--- a/scripts/get-weex-version.js
+++ b/scripts/get-weex-version.js
@@ -1,7 +1,7 @@
-var coreVersion = require('../package.json').version
-var weexVersion = require('../packages/weex-vue-framework/package.json').version
-var weexBaseVersion = weexVersion.match(/^[\d.]+/)[0]
-var weexSubVersion = Number(weexVersion.match(/-weex\.(\d+)$/)[1])
+const coreVersion = require('../package.json').version
+const weexVersion = require('../packages/weex-vue-framework/package.json').version
+let weexBaseVersion = weexVersion.match(/^[\d.]+/)[0]
+let weexSubVersion = Number(weexVersion.match(/-weex\.(\d+)$/)[1])
 
 if (weexBaseVersion === coreVersion) {
   // same core version, increment sub version
diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
index 81d033d5ad5..2a23a15c312 100644
--- a/src/platforms/web/runtime/components/transition-group.js
+++ b/src/platforms/web/runtime/components/transition-group.js
@@ -111,8 +111,8 @@ export default {
 
     children.forEach((c: VNode) => {
       if (c.data.moved) {
-        var el: any = c.elm
-        var s: any = el.style
+        const el: any = c.elm
+        const s: any = el.style
         addTransitionClass(el, moveClass)
         s.transform = s.WebkitTransform = s.transitionDuration = ''
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
diff --git a/src/platforms/web/util/style.js b/src/platforms/web/util/style.js
index fc119043f99..faa3db382e9 100644
--- a/src/platforms/web/util/style.js
+++ b/src/platforms/web/util/style.js
@@ -8,7 +8,7 @@ export const parseStyleText = cached(function (cssText) {
   const propertyDelimiter = /:(.+)/
   cssText.split(listDelimiter).forEach(function (item) {
     if (item) {
-      var tmp = item.split(propertyDelimiter)
+      const tmp = item.split(propertyDelimiter)
       tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim())
     }
   })
diff --git a/src/platforms/weex/runtime/modules/style.js b/src/platforms/weex/runtime/modules/style.js
index bdabd17b7a9..0ec217b3743 100755
--- a/src/platforms/weex/runtime/modules/style.js
+++ b/src/platforms/weex/runtime/modules/style.js
@@ -70,7 +70,7 @@ function updateStyle (oldVnode: VNodeWithData, vnode: VNodeWithData) {
 
 function toObject (arr) {
   const res = {}
-  for (var i = 0; i < arr.length; i++) {
+  for (let i = 0; i < arr.length; i++) {
     if (arr[i]) {
       extend(res, arr[i])
     }
diff --git a/test/e2e/runner.js b/test/e2e/runner.js
index d59506d9f73..dadce70d1d7 100644
--- a/test/e2e/runner.js
+++ b/test/e2e/runner.js
@@ -1,25 +1,25 @@
-var path = require('path')
-var spawn = require('cross-spawn')
-var httpServer = require('http-server')
-var server = httpServer.createServer({
+const path = require('path')
+const spawn = require('cross-spawn')
+const httpServer = require('http-server')
+const server = httpServer.createServer({
   root: path.resolve(__dirname, '../../')
 })
 
 server.listen(8080)
 
-var args = process.argv.slice(2)
+let args = process.argv.slice(2)
 if (args.indexOf('--config') === -1) {
   args = args.concat(['--config', 'test/e2e/nightwatch.config.js'])
 }
 if (args.indexOf('--env') === -1) {
   args = args.concat(['--env', 'chrome,phantomjs'])
 }
-var i = args.indexOf('--test')
+const i = args.indexOf('--test')
 if (i > -1) {
   args[i + 1] = 'test/e2e/specs/' + args[i + 1] + '.js'
 }
 
-var runner = spawn('./node_modules/.bin/nightwatch', args, {
+const runner = spawn('./node_modules/.bin/nightwatch', args, {
   stdio: 'inherit'
 })
 
diff --git a/test/e2e/specs/grid.js b/test/e2e/specs/grid.js
index 7c273359e1b..ab635b28f86 100644
--- a/test/e2e/specs/grid.js
+++ b/test/e2e/specs/grid.js
@@ -1,6 +1,6 @@
 module.exports = {
   'grid': function (browser) {
-    var columns = ['name', 'power']
+    const columns = ['name', 'power']
 
     browser
     .url('http://localhost:8080/examples/grid/')
@@ -92,8 +92,8 @@ module.exports = {
 
     function assertTable (data) {
       browser.assert.count('td', data.length * columns.length)
-      for (var i = 0; i < data.length; i++) {
-        for (var j = 0; j < columns.length; j++) {
+      for (let i = 0; i < data.length; i++) {
+        for (let j = 0; j < columns.length; j++) {
           browser.assert.containsText(
             'tr:nth-child(' + (i + 1) + ') td:nth-child(' + (j + 1) + ')',
             data[i][columns[j]]
diff --git a/test/e2e/specs/svg.js b/test/e2e/specs/svg.js
index 7726bff5690..cc9af55f62a 100644
--- a/test/e2e/specs/svg.js
+++ b/test/e2e/specs/svg.js
@@ -12,8 +12,8 @@ module.exports = {
       .assert.count('button', 7)
       .assert.count('input[type="range"]', 6)
       .assert.evaluate(function () {
-        var points = stats.map(function (stat, i) {
-        var point = valueToPoint(stat.value, i, 6)
+        const points = stats.map(function (stat, i) {
+        const point = valueToPoint(stat.value, i, 6)
           return point.x + ',' + point.y
         }).join(' ')
         return document.querySelector('polygon').attributes[0].value === points
@@ -24,8 +24,8 @@ module.exports = {
       .assert.count('button', 6)
       .assert.count('input[type="range"]', 5)
       .assert.evaluate(function () {
-        var points = stats.map(function (stat, i) {
-        var point = valueToPoint(stat.value, i, 5)
+        const points = stats.map(function (stat, i) {
+        const point = valueToPoint(stat.value, i, 5)
           return point.x + ',' + point.y
         }).join(' ')
         return document.querySelector('polygon').attributes[0].value === points
@@ -37,8 +37,8 @@ module.exports = {
       .assert.count('button', 7)
       .assert.count('input[type="range"]', 6)
       .assert.evaluate(function () {
-        var points = stats.map(function (stat, i) {
-        var point = valueToPoint(stat.value, i, 6)
+        const points = stats.map(function (stat, i) {
+        const point = valueToPoint(stat.value, i, 6)
           return point.x + ',' + point.y
         }).join(' ')
         return document.querySelector('polygon').attributes[0].value === points
diff --git a/test/e2e/specs/tree.js b/test/e2e/specs/tree.js
index 92ae25d778f..08df908ad44 100644
--- a/test/e2e/specs/tree.js
+++ b/test/e2e/specs/tree.js
@@ -63,8 +63,8 @@ module.exports = {
       .assert.count('.item > ul', 5)
       .assert.containsText('#demo ul > .item:nth-child(1)', '[-]')
       .assert.evaluate(function () {
-        var firstItem = document.querySelector('#demo ul > .item:nth-child(1)')
-        var ul = firstItem.querySelector('ul')
+        const firstItem = document.querySelector('#demo ul > .item:nth-child(1)')
+        const ul = firstItem.querySelector('ul')
         return ul.children.length === 2
       })
       .end()
diff --git a/test/helpers/to-have-been-warned.js b/test/helpers/to-have-been-warned.js
index 097b0e6e02b..b3a5eaae0e3 100644
--- a/test/helpers/to-have-been-warned.js
+++ b/test/helpers/to-have-been-warned.js
@@ -14,8 +14,8 @@ let asserted
 
 function createCompareFn (spy) {
   const hasWarned = msg => {
-    var count = spy.calls.count()
-    var args
+    let count = spy.calls.count()
+    let args
     while (count--) {
       args = spy.calls.argsFor(count)
       if (args.some(containsMsg)) {
@@ -31,7 +31,7 @@ function createCompareFn (spy) {
   return {
     compare: msg => {
       asserted = asserted.concat(msg)
-      var warned = Array.isArray(msg)
+      const warned = Array.isArray(msg)
         ? msg.some(hasWarned)
         : hasWarned(msg)
       return {
diff --git a/test/helpers/trigger-event.js b/test/helpers/trigger-event.js
index 12ea7e2b9ba..4cd5d79db55 100644
--- a/test/helpers/trigger-event.js
+++ b/test/helpers/trigger-event.js
@@ -1,5 +1,5 @@
 window.triggerEvent = function triggerEvent (target, event, process) {
-  var e = document.createEvent('HTMLEvents')
+  const e = document.createEvent('HTMLEvents')
   e.initEvent(event, true, true)
   if (process) process(e)
   target.dispatchEvent(e)
diff --git a/test/ssr/ssr-stream.spec.js b/test/ssr/ssr-stream.spec.js
index b18707abff3..5973b5ed0d8 100644
--- a/test/ssr/ssr-stream.spec.js
+++ b/test/ssr/ssr-stream.spec.js
@@ -89,9 +89,9 @@ describe('SSR: renderToStream', () => {
       template: `<div></div>`,
       _scopeId: '_component2'
     })
-    var stream1 = renderToStream(component1)
-    var stream2 = renderToStream(component2)
-    var res = ''
+    const stream1 = renderToStream(component1)
+    const stream2 = renderToStream(component2)
+    let res = ''
     stream1.on('data', (text) => {
       res += text.toString('utf-8').replace(/x/g, '')
     })
diff --git a/test/unit/features/component/component-async.spec.js b/test/unit/features/component/component-async.spec.js
index 889cb7145eb..6e057b81e63 100644
--- a/test/unit/features/component/component-async.spec.js
+++ b/test/unit/features/component/component-async.spec.js
@@ -79,7 +79,7 @@ describe('Component async', () => {
   })
 
   it('dynamic', done => {
-    var vm = new Vue({
+    const vm = new Vue({
       template: '<component :is="view"></component>',
       data: {
         view: 'view-a'
@@ -103,7 +103,7 @@ describe('Component async', () => {
         }
       }
     }).$mount()
-    var aCalled = false
+    let aCalled = false
     function step1 () {
       // ensure A is resolved only once
       expect(aCalled).toBe(false)
diff --git a/test/unit/features/component/component-keep-alive.spec.js b/test/unit/features/component/component-keep-alive.spec.js
index 49f7dd60d71..a2cdf6a4f09 100644
--- a/test/unit/features/component/component-keep-alive.spec.js
+++ b/test/unit/features/component/component-keep-alive.spec.js
@@ -140,7 +140,7 @@ describe('Component keep-alive', () => {
       components
     }).$mount()
 
-    var oneInstance = vm.$refs.one
+    const oneInstance = vm.$refs.one
     expect(vm.$el.textContent).toBe('two')
     assertHookCalls(one, [1, 1, 1, 0, 0])
     assertHookCalls(two, [1, 1, 1, 0, 0])
diff --git a/test/unit/features/directives/class.spec.js b/test/unit/features/directives/class.spec.js
index c1390697ed9..0ee3380ca9a 100644
--- a/test/unit/features/directives/class.spec.js
+++ b/test/unit/features/directives/class.spec.js
@@ -5,7 +5,7 @@ function assertClass (assertions, done) {
     template: '<div class="foo" :class="value"></div>',
     data: { value: '' }
   }).$mount()
-  var chain = waitForUpdate()
+  const chain = waitForUpdate()
   assertions.forEach(([value, expected], i) => {
     chain.then(() => {
       if (typeof value === 'function') {
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index 22528be62fc..445066284f9 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -330,7 +330,7 @@ describe('Directive v-for', () => {
     }).then(done)
 
     function assertMarkup () {
-      var markup = vm.list.map(function (item) {
+      const markup = vm.list.map(function (item) {
         return '<p>' + item.a + '</p><p>' + (item.a + 1) + '</p>'
       }).join('')
       expect(vm.$el.innerHTML).toBe(markup)
@@ -370,7 +370,7 @@ describe('Directive v-for', () => {
     }).then(done)
 
     function assertMarkup () {
-      var markup = vm.list.map(function (item) {
+      const markup = vm.list.map(function (item) {
         return `<p>${item.a}<span>${item.a}</span></p>`
       }).join('')
       expect(vm.$el.innerHTML).toBe(markup)
diff --git a/test/unit/features/directives/model-radio.spec.js b/test/unit/features/directives/model-radio.spec.js
index 4b3886c2a5d..3ff4e50bca5 100644
--- a/test/unit/features/directives/model-radio.spec.js
+++ b/test/unit/features/directives/model-radio.spec.js
@@ -117,7 +117,7 @@ describe('Directive v-model radio', () => {
         '</div>'
     }).$mount()
     document.body.appendChild(vm.$el)
-    var inputs = vm.$el.getElementsByTagName('input')
+    const inputs = vm.$el.getElementsByTagName('input')
     inputs[1].click()
     waitForUpdate(() => {
       expect(vm.selections).toEqual(['b', '1'])
@@ -160,7 +160,7 @@ describe('Directive v-model radio', () => {
           '<input type="radio" value="true" v-model="test" name="test">' +
         '</div>'
     }).$mount()
-    var radioboxInput = vm.$el.children
+    const radioboxInput = vm.$el.children
     expect(radioboxInput[0].checked).toBe(false)
     expect(radioboxInput[1].checked).toBe(false)
     expect(radioboxInput[2].checked).toBe(true)
diff --git a/test/unit/features/directives/model-select.spec.js b/test/unit/features/directives/model-select.spec.js
index 2bf5cb4d357..4fffe73a4f3 100644
--- a/test/unit/features/directives/model-select.spec.js
+++ b/test/unit/features/directives/model-select.spec.js
@@ -4,9 +4,9 @@ import { looseEqual } from 'shared/util'
 // Android 4.4 Chrome 30 has the bug that a multi-select option cannot be
 // deselected by setting its "selected" prop via JavaScript.
 function hasMultiSelectBug () {
-  var s = document.createElement('select')
+  const s = document.createElement('select')
   s.setAttribute('multiple', '')
-  var o = document.createElement('option')
+  const o = document.createElement('option')
   s.appendChild(o)
   o.selected = true
   o.selected = false
@@ -18,8 +18,8 @@ function hasMultiSelectBug () {
  * we have to manually loop through the options
  */
 function updateSelect (el, value) {
-  var options = el.options
-  var i = options.length
+  const options = el.options
+  let i = options.length
   while (i--) {
     if (looseEqual(getValue(options[i]), value)) {
       options[i].selected = true
@@ -245,7 +245,7 @@ describe('Directive v-model select', () => {
             '<option>c</option>' +
           '</select>'
       }).$mount()
-      var opts = vm.$el.options
+      const opts = vm.$el.options
       expect(opts[0].selected).toBe(false)
       expect(opts[1].selected).toBe(true)
       expect(opts[2].selected).toBe(false)
@@ -272,7 +272,7 @@ describe('Directive v-model select', () => {
             '<option v-for="o in opts">{{ o }}</option>' +
           '</select>'
       }).$mount()
-      var opts = vm.$el.options
+      const opts = vm.$el.options
       expect(opts[0].selected).toBe(false)
       expect(opts[1].selected).toBe(true)
       expect(opts[2].selected).toBe(false)
@@ -345,7 +345,7 @@ describe('Directive v-model select', () => {
         '<option selected>c</option>' +
       '</select>'
     }).$mount()
-    var opts = vm.$el.options
+    const opts = vm.$el.options
     expect(opts[0].selected).toBe(true)
     expect(opts[1].selected).toBe(true)
     expect(opts[2].selected).toBe(true)
@@ -379,8 +379,8 @@ describe('Directive v-model select', () => {
         '</div>'
     }).$mount()
     document.body.appendChild(vm.$el)
-    var selects = vm.$el.getElementsByTagName('select')
-    var select0 = selects[0]
+    const selects = vm.$el.getElementsByTagName('select')
+    const select0 = selects[0]
     select0.options[0].selected = true
     triggerEvent(select0, 'change')
     waitForUpdate(() => {
@@ -421,7 +421,7 @@ describe('Directive v-model select', () => {
           '<option value="true">c</option>' +
         '</select>'
     }).$mount()
-    var opts = vm.$el.options
+    const opts = vm.$el.options
     expect(opts[0].selected).toBe(false)
     expect(opts[1].selected).toBe(true)
     expect(opts[2].selected).toBe(false)
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 7ae44f9f9aa..d9adfb9cbab 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -167,7 +167,7 @@ describe('Directive v-model text', () => {
           '<span ref="rs">{{selections}}</span>' +
         '</div>'
     }).$mount()
-    var inputs = vm.$el.getElementsByTagName('input')
+    const inputs = vm.$el.getElementsByTagName('input')
     inputs[1].value = 'test'
     triggerEvent(inputs[1], 'input')
     waitForUpdate(() => {
diff --git a/test/unit/features/directives/style.spec.js b/test/unit/features/directives/style.spec.js
index 1d8f68b77e0..43f527be71d 100644
--- a/test/unit/features/directives/style.spec.js
+++ b/test/unit/features/directives/style.spec.js
@@ -1,11 +1,11 @@
 import Vue from 'vue'
 
 function checkPrefixedProp (prop) {
-  var el = document.createElement('div')
-  var upper = prop.charAt(0).toUpperCase() + prop.slice(1)
+  const el = document.createElement('div')
+  const upper = prop.charAt(0).toUpperCase() + prop.slice(1)
   if (!(prop in el.style)) {
-    var prefixes = ['Webkit', 'Moz', 'ms']
-    var i = prefixes.length
+    const prefixes = ['Webkit', 'Moz', 'ms']
+    let i = prefixes.length
     while (i--) {
       if ((prefixes[i] + upper) in el.style) {
         prop = prefixes[i] + upper
diff --git a/test/unit/features/instance/methods-data.spec.js b/test/unit/features/instance/methods-data.spec.js
index 8684c69eb3a..1c7fc144995 100644
--- a/test/unit/features/instance/methods-data.spec.js
+++ b/test/unit/features/instance/methods-data.spec.js
@@ -73,7 +73,7 @@ describe('Instance methods data', () => {
     })
 
     it('deep watch', done => {
-      var oldA = vm.a
+      const oldA = vm.a
       vm.$watch('a', spy, { deep: true })
       vm.a.b = 2
       waitForUpdate(() => {
@@ -85,7 +85,7 @@ describe('Instance methods data', () => {
     })
 
     it('handler option', done => {
-      var oldA = vm.a
+      const oldA = vm.a
       vm.$watch('a', {
         handler: spy,
         deep: true
diff --git a/test/unit/features/instance/methods-events.spec.js b/test/unit/features/instance/methods-events.spec.js
index 88834577f26..5cf43986185 100644
--- a/test/unit/features/instance/methods-events.spec.js
+++ b/test/unit/features/instance/methods-events.spec.js
@@ -77,7 +77,7 @@ describe('Instance methods events', () => {
   })
 
   it('$off event + fn', () => {
-    var spy2 = jasmine.createSpy('emitter')
+    const spy2 = jasmine.createSpy('emitter')
     vm.$on('test', spy)
     vm.$on('test', spy2)
     vm.$off('test', spy)
diff --git a/test/unit/features/options/functional.spec.js b/test/unit/features/options/functional.spec.js
index 2c6abe95972..b5fb67bd680 100644
--- a/test/unit/features/options/functional.spec.js
+++ b/test/unit/features/options/functional.spec.js
@@ -244,8 +244,8 @@ describe('Options functional', () => {
 
   it('should work with render fns compiled from template', done => {
     // code generated via vue-template-es2015-compiler
-    var render = function (_h, _vm) {
-      var _c = _vm._c
+    const render = function (_h, _vm) {
+      const _c = _vm._c
       return _c(
         'div',
         [
@@ -261,9 +261,9 @@ describe('Options functional', () => {
         2
       )
     }
-    var staticRenderFns = [
+    const staticRenderFns = [
       function (_h, _vm) {
-        var _c = _vm._c
+        const _c = _vm._c
         return _c('div', [_vm._v('Some '), _c('span', [_vm._v('text')])])
       }
     ]
diff --git a/test/unit/features/options/watch.spec.js b/test/unit/features/options/watch.spec.js
index e16b2f8312d..a14233c8314 100644
--- a/test/unit/features/options/watch.spec.js
+++ b/test/unit/features/options/watch.spec.js
@@ -106,9 +106,9 @@ describe('Options watch', () => {
   })
 
   it('correctly merges multiple extends', done => {
-    var spy2 = jasmine.createSpy('A')
-    var spy3 = jasmine.createSpy('B')
-    var A = Vue.extend({
+    const spy2 = jasmine.createSpy('A')
+    const spy3 = jasmine.createSpy('B')
+    const A = Vue.extend({
       data: function () {
         return {
           a: 0,
@@ -120,21 +120,21 @@ describe('Options watch', () => {
       }
     })
 
-    var B = Vue.extend({
+    const B = Vue.extend({
       extends: A,
       watch: {
         a: spy2
       }
     })
 
-    var C = Vue.extend({
+    const C = Vue.extend({
       extends: B,
       watch: {
         a: spy3
       }
     })
 
-    var vm = new C()
+    const vm = new C()
     vm.a = 1
 
     waitForUpdate(() => {
diff --git a/test/unit/features/transition/inject-styles.js b/test/unit/features/transition/inject-styles.js
index 2304e3d5924..34185096f62 100644
--- a/test/unit/features/transition/inject-styles.js
+++ b/test/unit/features/transition/inject-styles.js
@@ -1,5 +1,5 @@
 function insertCSS (text) {
-  var cssEl = document.createElement('style')
+  const cssEl = document.createElement('style')
   cssEl.textContent = text.trim()
   document.head.appendChild(cssEl)
 }
diff --git a/test/unit/karma.base.config.js b/test/unit/karma.base.config.js
index 8f0a706d382..2b30378f728 100644
--- a/test/unit/karma.base.config.js
+++ b/test/unit/karma.base.config.js
@@ -1,7 +1,7 @@
-var alias = require('../../scripts/alias')
-var webpack = require('webpack')
+const alias = require('../../scripts/alias')
+const webpack = require('webpack')
 
-var webpackConfig = {
+const webpackConfig = {
   mode: 'development',
   resolve: {
     alias: alias
diff --git a/test/unit/karma.cover.config.js b/test/unit/karma.cover.config.js
index 360252a6d54..e1801548f78 100644
--- a/test/unit/karma.cover.config.js
+++ b/test/unit/karma.cover.config.js
@@ -1,7 +1,7 @@
-var base = require('./karma.base.config.js')
+const base = require('./karma.base.config.js')
 
 module.exports = function (config) {
-  var options = Object.assign(base, {
+  const options = Object.assign(base, {
     browsers: ['PhantomJS'],
     reporters: ['mocha', 'coverage'],
     coverageReporter: {
diff --git a/test/unit/karma.dev.config.js b/test/unit/karma.dev.config.js
index 9285861e27b..f9dfc1b6722 100644
--- a/test/unit/karma.dev.config.js
+++ b/test/unit/karma.dev.config.js
@@ -1,4 +1,4 @@
-var base = require('./karma.base.config.js')
+const base = require('./karma.base.config.js')
 
 module.exports = function (config) {
   config.set(Object.assign(base, {
diff --git a/test/unit/karma.sauce.config.js b/test/unit/karma.sauce.config.js
index 55672b56778..0c4ab2270b1 100644
--- a/test/unit/karma.sauce.config.js
+++ b/test/unit/karma.sauce.config.js
@@ -1,5 +1,5 @@
-var webpack = require('webpack')
-var base = require('./karma.base.config.js')
+const webpack = require('webpack')
+const base = require('./karma.base.config.js')
 
 base.webpack.plugins = [
   new webpack.DefinePlugin({
@@ -19,7 +19,7 @@ base.webpack.plugins = [
  * smaller batches.
  */
 
-var batches = [
+const batches = [
   // the cool kids
   {
     sl_chrome: {
@@ -79,7 +79,7 @@ var batches = [
 ]
 
 module.exports = function (config) {
-  var batch = batches[process.argv[4] || 0]
+  const batch = batches[process.argv[4] || 0]
 
   config.set(Object.assign(base, {
     singleRun: true,
diff --git a/test/unit/karma.unit.config.js b/test/unit/karma.unit.config.js
index 7840df74e25..a9337064a9d 100644
--- a/test/unit/karma.unit.config.js
+++ b/test/unit/karma.unit.config.js
@@ -1,4 +1,4 @@
-var base = require('./karma.base.config.js')
+const base = require('./karma.base.config.js')
 
 module.exports = function (config) {
   config.set(Object.assign(base, {

From 6eaf56e28d659f985934ae3a8782f90e9d6f1775 Mon Sep 17 00:00:00 2001
From: "X.L" <liximomo@gmail.com>
Date: Thu, 25 Oct 2018 01:21:14 +0800
Subject: [PATCH 551/911] refactor: keep single source of truth (#8334)

---
 src/core/instance/state.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 184f94efaa8..f70f7d1366e 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -86,7 +86,7 @@ function initProps (vm: Component, propsOptions: Object) {
         )
       }
       defineReactive(props, key, value, () => {
-        if (vm.$parent && !isUpdatingChildComponent) {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             `Avoid mutating a prop directly since the value will be ` +
             `overwritten whenever the parent component re-renders. ` +

From 96b833bc5da5e5179bd56f1352cda84560451b89 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B7=BC=E6=B7=BC=E7=9C=9F=E4=BA=BA?=
 <xiong_zixiao@163.com>
Date: Thu, 25 Oct 2018 01:22:16 +0800
Subject: [PATCH 552/911] refactor: remove unnecessary code in html-parser.js
 (#8359)

---
 src/compiler/parser/html-parser.js | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index e2203613204..a1a230fac0b 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -26,11 +26,6 @@ const doctype = /^<!DOCTYPE [^>]+>/i
 const comment = /^<!\--/
 const conditionalComment = /^<!\[/
 
-let IS_REGEX_CAPTURING_BROKEN = false
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === ''
-})
-
 // Special Elements (can contain anything)
 export const isPlainTextElement = makeMap('script,style,textarea', true)
 const reCache = {}
@@ -228,12 +223,6 @@ export function parseHTML (html, options) {
     const attrs = new Array(l)
     for (let i = 0; i < l; i++) {
       const args = match.attrs[i]
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3] }
-        if (args[4] === '') { delete args[4] }
-        if (args[5] === '') { delete args[5] }
-      }
       const value = args[3] || args[4] || args[5] || ''
       const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref

From 504d5da7eff1c77117c2f57b0c4238e56de80fc5 Mon Sep 17 00:00:00 2001
From: Vladimir Verstov <rwml@yandex.ru>
Date: Thu, 25 Oct 2018 00:23:12 +0700
Subject: [PATCH 553/911] fix(transition): transition-group should only listen
 for first-level children's end events (#8374)

---
 src/platforms/web/runtime/components/transition-group.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
index 2a23a15c312..1d960a208be 100644
--- a/src/platforms/web/runtime/components/transition-group.js
+++ b/src/platforms/web/runtime/components/transition-group.js
@@ -116,6 +116,9 @@ export default {
         addTransitionClass(el, moveClass)
         s.transform = s.WebkitTransform = s.transitionDuration = ''
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb)
             el._moveCb = null

From a71853bfc5b6ee117af05408f4d75c80893d44e2 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Thu, 25 Oct 2018 01:24:07 +0800
Subject: [PATCH 554/911] fix(v-pre): skip compiling custom component tags in
 v-pre blocks (fix #8286) (#8376)

---
 src/compiler/codegen/index.js             |  9 ++++++++-
 src/core/vdom/create-element.js           |  2 +-
 test/unit/features/directives/pre.spec.js | 15 +++++++++++++--
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 4afc4711c2f..9eb705abfcb 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -52,6 +52,10 @@ export function generate (
 }
 
 export function genElement (el: ASTElement, state: CodegenState): string {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -70,7 +74,10 @@ export function genElement (el: ASTElement, state: CodegenState): string {
     if (el.component) {
       code = genComponent(el.component, el, state)
     } else {
-      const data = el.plain ? undefined : genData(el, state)
+      let data
+      if (!el.plain || el.pre) {
+        data = genData(el, state)
+      }
 
       const children = el.inlineTemplate ? null : genChildren(el, state, true)
       code = `_c('${el.tag}'${
diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index c5cde2c6424..46027084b51 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -102,7 +102,7 @@ export function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       )
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag)
     } else {
diff --git a/test/unit/features/directives/pre.spec.js b/test/unit/features/directives/pre.spec.js
index 92d3bc85537..ed48bf0f860 100644
--- a/test/unit/features/directives/pre.spec.js
+++ b/test/unit/features/directives/pre.spec.js
@@ -7,7 +7,7 @@ describe('Directive v-pre', function () {
         <div v-pre>{{ a }}</div>
         <div>{{ a }}</div>
         <div v-pre>
-          <component></component>
+          <component is="div"></component>
         </div>
       </div>`,
       data: {
@@ -17,7 +17,7 @@ describe('Directive v-pre', function () {
     vm.$mount()
     expect(vm.$el.firstChild.textContent).toBe('{{ a }}')
     expect(vm.$el.children[1].textContent).toBe('123')
-    expect(vm.$el.lastChild.innerHTML).toBe('<component></component>')
+    expect(vm.$el.lastChild.innerHTML).toBe('<component is="div"></component>')
   })
 
   it('should not compile on root node', function () {
@@ -31,4 +31,15 @@ describe('Directive v-pre', function () {
     vm.$mount()
     expect(vm.$el.firstChild.textContent).toBe('{{ a }}')
   })
+
+  // #8286
+  it('should not compile custom component tags', function () {
+    Vue.component('vtest', { template: ` <div>Hello World</div>` })
+    const vm = new Vue({
+      template: '<div v-pre><vtest></vtest></div>',
+      replace: true
+    })
+    vm.$mount()
+    expect(vm.$el.firstChild.tagName).toBe('VTEST')
+  })
 })

From a64ff1957c35270b818aa9cfdfb2acb6e42ce2a9 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Thu, 25 Oct 2018 01:24:31 +0800
Subject: [PATCH 555/911] fix(lifecycle): updated should not be called after
 component being destroyed (#8381)

fix #8076
---
 src/core/observer/scheduler.js               |  2 +-
 test/unit/features/options/lifecycle.spec.js | 37 ++++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index 176ee2c36f7..d9bf67585da 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -98,7 +98,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     const watcher = queue[i]
     const vm = watcher.vm
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated')
     }
   }
diff --git a/test/unit/features/options/lifecycle.spec.js b/test/unit/features/options/lifecycle.spec.js
index 3fa152e70c2..ccc9d2106de 100644
--- a/test/unit/features/options/lifecycle.spec.js
+++ b/test/unit/features/options/lifecycle.spec.js
@@ -199,6 +199,43 @@ describe('Options lifecycle hooks', () => {
         expect(calls).toEqual(['child', 'parent'])
       }).then(done)
     })
+
+    // #8076
+    it('should not be called after destroy', done => {
+      const updated = jasmine.createSpy('updated')
+      const destroyed = jasmine.createSpy('destroyed')
+
+      Vue.component('todo', {
+        template: '<div>{{todo.done}}</div>',
+        props: ['todo'],
+        destroyed,
+        updated
+      })
+
+      const vm = new Vue({
+        template: `
+          <div>
+            <todo v-for="t in pendingTodos" :todo="t" :key="t.id"></todo>
+          </div>
+        `,
+        data () {
+          return {
+            todos: [{ id: 1, done: false }]
+          }
+        },
+        computed: {
+          pendingTodos () {
+            return this.todos.filter(t => !t.done)
+          }
+        }
+      }).$mount()
+
+      vm.todos[0].done = true
+      waitForUpdate(() => {
+        expect(destroyed).toHaveBeenCalled()
+        expect(updated).not.toHaveBeenCalled()
+      }).then(done)
+    })
   })
 
   describe('beforeDestroy', () => {

From 8f04135dbaa5f5f0500d42c0968beba8043f5363 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Thu, 25 Oct 2018 01:24:55 +0800
Subject: [PATCH 556/911] fix(parser): allow CRLFs in string interpolations
 (#8408)

fix #8103
---
 src/compiler/parser/text-parser.js        | 2 +-
 test/unit/modules/compiler/parser.spec.js | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/text-parser.js b/src/compiler/parser/text-parser.js
index 284fca33bf4..cf82a62484f 100644
--- a/src/compiler/parser/text-parser.js
+++ b/src/compiler/parser/text-parser.js
@@ -3,7 +3,7 @@
 import { cached } from 'shared/util'
 import { parseFilters } from './filter-parser'
 
-const defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g
+const defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g
 const regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g
 
 const buildRegex = cached(delimiters => {
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 1cdaa3b7171..32c1cc3580b 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -731,4 +731,10 @@ describe('parser', () => {
     expect(ast.children[1].isComment).toBe(true) // parse comment with ASTText
     expect(ast.children[1].text).toBe('comment here')
   })
+
+  // #8103
+  it('should allow CRLFs in string interpolations', () => {
+    const ast = parse(`<p>{{\r\nmsg\r\n}}</p>`, baseOptions)
+    expect(ast.children[0].expression).toBe('_s(msg)')
+  })
 })

From 0b16927c9d382b9cf134b131b898350340c2ee41 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Thu, 25 Oct 2018 01:26:20 +0800
Subject: [PATCH 557/911] fix(transition): check existence of `el.parentNode`
 (#8422)

fix #8199

* fix(transition): check existence of `el.parentNode`

If the new parentNode gets a `textContent` or `innerHTML` property during
patching, the `transition` node would have been detached early, which means
`el.parentNode` no longer exists.

* fix(vdom): should not reuse nodes with `textContent` / `innerHTML` props
---
 src/core/vdom/patch.js                        |  7 ++++++
 .../web/runtime/modules/transition.js         |  2 +-
 .../features/transition/transition.spec.js    | 22 +++++++++++++++++++
 3 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 676499dc69e..81289f01521 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -32,6 +32,12 @@ export const emptyNode = new VNode('', {}, [])
 
 const hooks = ['create', 'activate', 'update', 'remove', 'destroy']
 
+function childrenIgnored (vnode) {
+  return vnode && vnode.data && vnode.data.domProps && (
+    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+  )
+}
+
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -39,6 +45,7 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
+        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
diff --git a/src/platforms/web/runtime/modules/transition.js b/src/platforms/web/runtime/modules/transition.js
index 0796b5dad5e..128a1c0bd1b 100644
--- a/src/platforms/web/runtime/modules/transition.js
+++ b/src/platforms/web/runtime/modules/transition.js
@@ -251,7 +251,7 @@ export function leave (vnode: VNodeWithData, rm: Function) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key: any)] = vnode
     }
     beforeLeave && beforeLeave(el)
diff --git a/test/unit/features/transition/transition.spec.js b/test/unit/features/transition/transition.spec.js
index f7b08e376a5..2ecf80b854d 100644
--- a/test/unit/features/transition/transition.spec.js
+++ b/test/unit/features/transition/transition.spec.js
@@ -1167,5 +1167,27 @@ if (!isIE9) {
         expect(vm.$el.innerHTML).toBe('<!---->')
       }).then(done)
     })
+
+    // #8199
+    it('should not throw error when replaced by v-html contents', (done) => {
+      const vm = new Vue({
+        template: `
+          <div>
+            <div v-if="ok" :class="ok">
+              <transition>
+                <span>a</span>
+              </transition>
+            </div>
+            <div v-else v-html="ok"></div>
+          </div>
+        `,
+        data: { ok: true }
+      }).$mount(el)
+
+      vm.ok = false
+      waitForUpdate(() => {
+        expect(vm.$el.children[0].innerHTML).toBe('false')
+      }).then(done)
+    })
   })
 }

From 002acbe678a76efb57be2b80e4e6e54d8d82b08c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 24 Oct 2018 13:52:35 -0400
Subject: [PATCH 558/911] refactor(codegen): only generate pre data for
 possible components

---
 src/compiler/codegen/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 9eb705abfcb..42fe18874e0 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -75,7 +75,7 @@ export function genElement (el: ASTElement, state: CodegenState): string {
       code = genComponent(el.component, el, state)
     } else {
       let data
-      if (!el.plain || el.pre) {
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
         data = genData(el, state)
       }
 

From eb604529c62e9954305889122f34499ad75b3b45 Mon Sep 17 00:00:00 2001
From: HcySunYang <HcySunYang@outlook.com>
Date: Thu, 25 Oct 2018 01:55:33 +0800
Subject: [PATCH 559/911] fix: support modifier combination of click.right +
 .once (#8492)

---
 src/compiler/helpers.js | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 6a7375a3080..265b05c0390 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -65,6 +65,18 @@ export function addHandler (
     )
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu'
+      delete modifiers.right
+    } else if (modifiers.middle) {
+      name = 'mouseup'
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture
@@ -80,18 +92,6 @@ export function addHandler (
     name = '&' + name // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu'
-      delete modifiers.right
-    } else if (modifiers.middle) {
-      name = 'mouseup'
-    }
-  }
-
   let events
   if (modifiers.native) {
     delete modifiers.native

From 8c2674ea6a742173d278f3d6c3c75f4999b84293 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=98=BF=E6=9E=97?= <724159997@qq.com>
Date: Thu, 25 Oct 2018 01:56:02 +0800
Subject: [PATCH 560/911] refactor: remove unnecessary judgment (#8493)

---
 src/compiler/parser/html-parser.js | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index a1a230fac0b..e4925f38d34 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -248,12 +248,9 @@ export function parseHTML (html, options) {
     if (start == null) start = index
     if (end == null) end = index
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase()
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase()
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break

From 59d4351ad8fc042bc263a16ed45a56e9ff5b013e Mon Sep 17 00:00:00 2001
From: Phablulo Joel <pjs2@cin.ufpe.br>
Date: Wed, 24 Oct 2018 14:58:25 -0300
Subject: [PATCH 561/911] fix(transition): handle local-formatted floats in
 toMs function.  (#8495)

fix #4894
---
 src/platforms/web/runtime/transition-util.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/transition-util.js b/src/platforms/web/runtime/transition-util.js
index 706210141fc..0885f973f89 100644
--- a/src/platforms/web/runtime/transition-util.js
+++ b/src/platforms/web/runtime/transition-util.js
@@ -181,6 +181,10 @@ function getTimeout (delays: Array<string>, durations: Array<string>): number {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s: string): number {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }

From d483a49c86874b2e75863b661f81feecd46ae721 Mon Sep 17 00:00:00 2001
From: "X.L" <liximomo@gmail.com>
Date: Thu, 25 Oct 2018 02:02:45 +0800
Subject: [PATCH 562/911] fix(compiler): normalize potential functional
 component children in v-for (#8558)

fix #8468
---
 src/compiler/codegen/index.js                 |  5 ++++-
 test/unit/features/options/functional.spec.js | 21 +++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 42fe18874e0..f75d6300f66 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -406,7 +406,10 @@ export function genChildren (
       el.tag !== 'template' &&
       el.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el, state)
+      // because el may be a functional component and return an Array instead of a single root.
+      // In this case, just a simple normalization is needed
+      const normalizationType = state.maybeComponent(el) ? `,1` : ``
+      return `${(altGenElement || genElement)(el, state)}${normalizationType}`
     }
     const normalizationType = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
diff --git a/test/unit/features/options/functional.spec.js b/test/unit/features/options/functional.spec.js
index b5fb67bd680..8e06d3e12ee 100644
--- a/test/unit/features/options/functional.spec.js
+++ b/test/unit/features/options/functional.spec.js
@@ -316,4 +316,25 @@ describe('Options functional', () => {
     triggerEvent(parent.$el.querySelector('.clickable'), 'click')
     waitForUpdate(assertMarkup).then(done)
   })
+
+  // #8468
+  it('should normalize nested arrays when use functional components with v-for', () => {
+    const Foo = {
+      functional: true,
+      props: {
+        name: {}
+      },
+      render (h, context) {
+        return [h('span', 'hi'), h('span', context.props.name)]
+      }
+    }
+    const vm = new Vue({
+      template: `<div><foo v-for="name in names" :name="name" /></div>`,
+      data: {
+        names: ['foo', 'bar']
+      },
+      components: { Foo }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe('<span>hi</span><span>foo</span><span>hi</span><span>bar</span>')
+  })
 })

From 0008e0c5cf5abcb458ddba53a6dfd9a34cf4316a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 9 Nov 2018 14:55:41 -0500
Subject: [PATCH 563/911] chore: update sponsors

---
 BACKERS.md | 44 ++++++--------------------------------------
 README.md  | 51 +++++++--------------------------------------------
 2 files changed, 13 insertions(+), 82 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 8708b9c2314..0e3cc0f93a2 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -17,8 +17,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <!--special start-->
 
 <p align="center">
-  <a href="https://code.xyz/" target="_blank">
-    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
+  <a href="https://stdlib.com/" target="_blank">
+    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
   
@@ -115,11 +115,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://icons8.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
@@ -130,13 +125,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://codepilot.ai" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://teamextension.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
@@ -147,28 +135,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.valuecoders.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.nsoft.com/careers/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nsoft.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://coreui.io/?utm_source=vuejs&utm_medium=logo&utm_campaign=homepage" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coreui.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://piio.co/vuejs?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/piio.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
@@ -184,19 +157,14 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://kintohub.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/kintohub.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://issue.sh" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/issue-sh.png">
+        <a href="https://courses.wilderminds.com/p/vue-js-by-example" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/wilderminds.png">
         </a>
       </td>
     </tr><tr></tr>
diff --git a/README.md b/README.md
index 6593434672b..d0a12dc7fe4 100644
--- a/README.md
+++ b/README.md
@@ -27,11 +27,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <!--special start-->
 
 <p align="center">
-  <a href="https://code.xyz/" target="_blank">
-    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codexyz.png">
+  <a href="https://stdlib.com/" target="_blank">
+    <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -77,11 +77,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://www.geekbang.org/" target="_blank">
-          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/geekbang.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://gitee.com/?from=vue" target="_blank">
           <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/gitee.png">
@@ -140,11 +135,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://hackr.io/tutorials/learn-vue-js" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/hackr-io.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://icons8.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
@@ -155,13 +145,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://codepilot.ai" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/codepilot.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://teamextension.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
@@ -172,28 +155,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.valuecoders.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.nsoft.com/careers/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nsoft.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://coreui.io/?utm_source=vuejs&utm_medium=logo&utm_campaign=homepage" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coreui.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://piio.co/vuejs?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/piio.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
@@ -209,19 +177,14 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://kintohub.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/kintohub.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://issue.sh" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/issue-sh.png">
+        <a href="https://courses.wilderminds.com/p/vue-js-by-example" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/wilderminds.png">
         </a>
       </td>
     </tr><tr></tr>

From 3d220a65de8740fbc7d354bbda1563f67ad0034f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 12 Nov 2018 22:03:20 -0500
Subject: [PATCH 564/911] chore: update sponsors

---
 BACKERS.md | 7 +++++++
 README.md  | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 0e3cc0f93a2..50d51e64ff7 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -168,6 +168,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://devsquad.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index d0a12dc7fe4..f6c0880b996 100644
--- a/README.md
+++ b/README.md
@@ -188,6 +188,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://devsquad.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From 1762a66204d4856e0725f09f12e4da16f403bf09 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 19 Nov 2018 00:22:21 -0500
Subject: [PATCH 565/911] chore: update sponsors

---
 BACKERS.md | 10 +++-------
 README.md  | 12 +-----------
 2 files changed, 4 insertions(+), 18 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 50d51e64ff7..d5d43ce95dc 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -302,6 +302,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Ernest Sim
 - Blaise Laflamme
 - Dilettant 
+- Sean Ferguson
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -310,7 +311,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Luca Borghini
 - kazuya kawaguchi
 - Keisuke KITA
-- Jack Barham
 - Santa Cruz
 - Simon East
 - Benjamin Listwon
@@ -336,8 +336,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Edithvale 
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
+- Chengzhi Yin
 - Zoran Knezevic
-- Pascal Germain
 - Pierre Vanhulst
 - Jon Hobbs-Smith
 - Akiho Nagao
@@ -359,7 +359,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Guilherme S L de Souza
 - Rob Yedlin
 - Daniel Waghorn
-- Eric Githinji
 - Chih-Hsuan, Fan
 - Jordan Oroshiba
 - Cliff Hess
@@ -377,7 +376,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Alexander Weiher
 - Daniel Cook
 - Shinya Katayama
-- Brendan Long
 - Jere Sjöroos
 - Wakana Seki
 - David Ang
@@ -402,7 +400,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Chris Calo
 - Milan Zivkovic
 - Christo Crampton
-- Jason Rys
 - Johnny Austin
 - Aaron Hung
 - Soichiro Isshiki
@@ -410,8 +407,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Rob Mellett
 - Abraham Arango
 - Marko Bošković
-- Chris Lind
-- Andrej 
+- Andrej Noskaj
 - Ed Linklater
 - Garion Herman
 - Chris Bemister
diff --git a/README.md b/README.md
index f6c0880b996..90324104b6b 100644
--- a/README.md
+++ b/README.md
@@ -74,17 +74,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <h3 align="center">Platinum Sponsors (China)</h3>
 <!--special-china start-->
-<table>
-  <tbody>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://gitee.com/?from=vue" target="_blank">
-          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/gitee.png">
-        </a>
-      </td>
-    </tr><tr></tr>
-  </tbody>
-</table>
+
 <!--special-china end-->
 
 <h3 align="center">Gold Sponsors</h4>

From 6cc070063bd211229dff5108c99f7d11b6778550 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 26 Nov 2018 09:51:30 -0500
Subject: [PATCH 566/911] chore: update sponsors

---
 BACKERS.md | 36 ++++++++++++++++++++++++++++--------
 README.md  | 21 ++++++++++++++++++---
 2 files changed, 46 insertions(+), 11 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index d5d43ce95dc..94709825ac7 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -62,6 +62,26 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 </table>
 <!--platinum end-->
 
+<!--special-china start-->
+<h3 align="center">Platinum Sponsors (China)</h3>
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://studio.qcloud.coding.net/campaign/favorite-plugins/?utm_source=vue.js&utm_content=cs-logo" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/cloudstudio.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="http://www.dcloud.io/?hmsr=vuejsorg&hmpl=&hmcu=&hmkw=&hmci=" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dcloud.gif">
+        </a>
+      </td>
+    </tr><tr></tr>
+  </tbody>
+</table>
+<!--special-china end-->
+
 <h2 align="center">Platinum via OpenCollective</h2>
 
 <a href="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/website" target="_blank"><img src="https://opencollective.com/vuejs/tiers/platinum-sponsors/0/avatar.svg"></a>
@@ -295,13 +315,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik 
+- errorrik
 - Alex Balashov
 - Konstantin Levinski
 - Evan Leonardi
 - Ernest Sim
 - Blaise Laflamme
-- Dilettant 
+- Dilettant
 - Sean Ferguson
 <!--50 end-->
 
@@ -321,10 +341,10 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解 
+- 叶解
 - Jake Ingman
 - Barbara Liau
-- 4 
+- 4
 - Jarek Tkaczyk
 - David Hess
 - Niannian Modisette
@@ -333,7 +353,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale 
+- Edithvale
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
@@ -379,12 +399,12 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Jere Sjöroos
 - Wakana Seki
 - David Ang
-- Dom 
+- Dom
 - Ben Hong
 - David Kaplan
 - John Cleveland
 - Jaeyoung Lee
-- Amor 
+- Amor
 - Tom Ootes
 - Andy Foster
 - Blake Campbell
diff --git a/README.md b/README.md
index 90324104b6b..aeaccb5967e 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -72,9 +72,24 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 </table>
 <!--platinum end-->
 
-<h3 align="center">Platinum Sponsors (China)</h3>
 <!--special-china start-->
-
+<h3 align="center">Platinum Sponsors (China)</h3>
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://studio.qcloud.coding.net/campaign/favorite-plugins/?utm_source=vue.js&utm_content=cs-logo" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/cloudstudio.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="http://www.dcloud.io/?hmsr=vuejsorg&hmpl=&hmcu=&hmkw=&hmci=" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dcloud.gif">
+        </a>
+      </td>
+    </tr><tr></tr>
+  </tbody>
+</table>
 <!--special-china end-->
 
 <h3 align="center">Gold Sponsors</h4>

From 69730fac8f2c1f43e56a82c8b2ce24827a2a5e1e Mon Sep 17 00:00:00 2001
From: william-pan <william49@qq.com>
Date: Fri, 30 Nov 2018 05:37:01 +0800
Subject: [PATCH 567/911] chore: update badge for Vue CLI 3 (#8640)

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index aeaccb5967e..6d589e4da06 100644
--- a/README.md
+++ b/README.md
@@ -253,7 +253,7 @@ Vue.js supports all browsers that are [ES5-compliant](http://kangax.github.io/co
 
 [vue-router-status]: https://img.shields.io/npm/v/vue-router.svg
 [vuex-status]: https://img.shields.io/npm/v/vuex.svg
-[vue-cli-status]: https://img.shields.io/npm/v/vue-cli.svg
+[vue-cli-status]: https://img.shields.io/npm/v/@vue/cli.svg
 [vue-loader-status]: https://img.shields.io/npm/v/vue-loader.svg
 [vue-server-renderer-status]: https://img.shields.io/npm/v/vue-server-renderer.svg
 [vue-class-component-status]: https://img.shields.io/npm/v/vue-class-component.svg
@@ -262,7 +262,7 @@ Vue.js supports all browsers that are [ES5-compliant](http://kangax.github.io/co
 
 [vue-router-package]: https://npmjs.com/package/vue-router
 [vuex-package]: https://npmjs.com/package/vuex
-[vue-cli-package]: https://npmjs.com/package/vue-cli
+[vue-cli-package]: https://npmjs.com/package/@vue/cli
 [vue-loader-package]: https://npmjs.com/package/vue-loader
 [vue-server-renderer-package]: https://npmjs.com/package/vue-server-renderer
 [vue-class-component-package]: https://npmjs.com/package/vue-class-component

From 7b7164c11cbb74ed44ee086f0a82acfcc1ff47a2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 29 Nov 2018 18:09:37 -0500
Subject: [PATCH 568/911] fix(v-model): avoid duplicate model transforms

This happens when a component directly passes down its own data object
to a child component. Fix #8436.
---
 src/core/vdom/create-component.js             | 14 ++++-
 .../directives/model-component.spec.js        | 56 +++++++++++++++++++
 2 files changed, 67 insertions(+), 3 deletions(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 697afbefb22..b769fa1e19d 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -252,9 +252,17 @@ function transformModel (options, data: any) {
   const event = (options.model && options.model.event) || 'input'
   ;(data.props || (data.props = {}))[prop] = data.model.value
   const on = data.on || (data.on = {})
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event])
+  const existing = on[event]
+  const callback = data.model.callback
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing)
+    }
   } else {
-    on[event] = data.model.callback
+    on[event] = callback
   }
 }
diff --git a/test/unit/features/directives/model-component.spec.js b/test/unit/features/directives/model-component.spec.js
index 6098e4d6241..9f9536ada09 100644
--- a/test/unit/features/directives/model-component.spec.js
+++ b/test/unit/features/directives/model-component.spec.js
@@ -148,4 +148,60 @@ describe('Directive v-model component', () => {
     vm.$refs.input.$emit('input', '   foo o  ')
     expect(vm.text).toBe('foo o')
   })
+
+  // #8436
+  it('should not double transform mode props', () => {
+    const BaseInput = {
+      props: ['value'],
+      render (h) {
+        return h('input', {
+          domProps: {
+            value: this.value
+          },
+          on: {
+            input: e => this.$emit('input', e.target.value)
+          }
+        })
+      }
+    }
+
+    const FunctionalWrapper = {
+      functional: true,
+      render (h, ctx) {
+        return h(BaseInput, ctx.data)
+      }
+    }
+
+    let triggerCount = 0
+
+    const vm = new Vue({
+      components: {
+        FunctionalWrapper
+      },
+      template: `
+        <div>
+          <functional-wrapper v-model="val"/>
+        </div>
+      `,
+      data: {
+        internalVal: ''
+      },
+      computed: {
+        val: {
+          get () {
+            return this.internalVal
+          },
+          set (val) {
+            triggerCount++
+            this.internalVal = val
+          }
+        }
+      }
+    }).$mount()
+
+    document.body.appendChild(vm.$el)
+    triggerEvent(vm.$el.querySelector('input'), 'input')
+    expect(triggerCount).toBe(1)
+    document.body.removeChild(vm.$el)
+  })
 })

From 2686818beb5728e3b7aa22f47a3b3f0d39d90c8e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adri=C3=A0=20Fontcuberta?= <afontcu@gmail.com>
Date: Fri, 30 Nov 2018 00:14:28 +0100
Subject: [PATCH 569/911] fix(error handling): handle errors on immediate
 watcher execution (#8581)

The handle callback call should be wrapped in a try/catch that explicitly calls handleError

fix #8567
---
 src/core/instance/state.js                |  6 +++++-
 test/unit/features/error-handling.spec.js | 25 +++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index f70f7d1366e..50311b2f618 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -351,7 +351,11 @@ export function stateMixin (Vue: Class<Component>) {
     options.user = true
     const watcher = new Watcher(vm, expOrFn, cb, options)
     if (options.immediate) {
-      cb.call(vm, watcher.value)
+      try {
+        cb.call(vm, watcher.value)
+      } catch (error) {
+        handleError(error, vm, `callback for immediate watcher "${watcher.expression}"`)
+      }
     }
     return function unwatchFn () {
       watcher.teardown()
diff --git a/test/unit/features/error-handling.spec.js b/test/unit/features/error-handling.spec.js
index 77ac0b928b3..713c91a766d 100644
--- a/test/unit/features/error-handling.spec.js
+++ b/test/unit/features/error-handling.spec.js
@@ -92,6 +92,16 @@ describe('Error handling', () => {
     }).then(done)
   })
 
+  it('should recover from errors in user immediate watcher callback', done => {
+    const vm = createTestInstance(components.userImmediateWatcherCallback)
+    waitForUpdate(() => {
+      expect(`Error in callback for immediate watcher "n"`).toHaveBeenWarned()
+      expect(`Error: userImmediateWatcherCallback error`).toHaveBeenWarned()
+    }).thenWaitFor(next => {
+      assertBothInstancesActive(vm).end(next)
+    }).then(done)
+  })
+
   it('config.errorHandler should capture render errors', done => {
     const spy = Vue.config.errorHandler = jasmine.createSpy('errorHandler')
     const vm = createTestInstance(components.render)
@@ -234,6 +244,21 @@ function createErrorTestComponents () {
     }
   }
 
+  components.userImmediateWatcherCallback = {
+    props: ['n'],
+    watch: {
+      n: {
+        immediate: true,
+        handler () {
+          throw new Error('userImmediateWatcherCallback error')
+        }
+      }
+    },
+    render (h) {
+      return h('div', this.n)
+    }
+  }
+
   // event errors
   components.event = {
     beforeCreate () {

From 4ecc21c29ec12bb33d3b426cb4d42c579e9b0f2d Mon Sep 17 00:00:00 2001
From: Rahul Kadyan <hi@znck.me>
Date: Sat, 1 Dec 2018 04:01:44 +0530
Subject: [PATCH 570/911] feat(devtools): store functional render context on
 vnode in development (#8586)

---
 src/core/vdom/create-functional-component.js | 9 ++++++---
 src/core/vdom/vnode.js                       | 1 +
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index efed801db7d..4233ade22e8 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -105,24 +105,27 @@ export function createFunctionalComponent (
   const vnode = options.render.call(null, renderContext._c, renderContext)
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     const vnodes = normalizeChildren(vnode) || []
     const res = new Array(vnodes.length)
     for (let i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options)
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext)
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   const clone = cloneVNode(vnode)
   clone.fnContext = contextVm
   clone.fnOptions = options
+  if (process.env.NODE_ENV !== 'production') {
+    ;(clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot
   }
diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index c3e00078fea..0e3e2e9e635 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -26,6 +26,7 @@ export default class VNode {
   ssrContext: Object | void;
   fnContext: Component | void; // real context vm for functional nodes
   fnOptions: ?ComponentOptions; // for SSR caching
+  devtoolsMeta: ?Object; // used to store functional render context for devtools
   fnScopeId: ?string; // functional scope id support
 
   constructor (

From 5624278fbe5d85cfe578d749da12b1e73c3e61a9 Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Fri, 30 Nov 2018 22:32:28 +0000
Subject: [PATCH 571/911] fix(ssr): check js assets more accurate in ssr
 webpack plugin (#8639)

---
 src/server/webpack-plugin/server.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/server/webpack-plugin/server.js b/src/server/webpack-plugin/server.js
index a9a38337411..305b4bab58b 100644
--- a/src/server/webpack-plugin/server.js
+++ b/src/server/webpack-plugin/server.js
@@ -43,7 +43,7 @@ export default class VueSSRServerPlugin {
       }
 
       stats.assets.forEach(asset => {
-        if (asset.name.match(/\.js$/)) {
+        if (isJS(asset.name)) {
           bundle.files[asset.name] = compilation.assets[asset.name].source()
         } else if (asset.name.match(/\.js\.map$/)) {
           bundle.maps[asset.name.replace(/\.map$/, '')] = JSON.parse(compilation.assets[asset.name].source())

From 5f6ef15fb2879411797aee0287b811977f6ebb42 Mon Sep 17 00:00:00 2001
From: HcySunYang <HcySunYang@outlook.com>
Date: Sat, 1 Dec 2018 06:35:10 +0800
Subject: [PATCH 572/911] polish: warn sequential index on <transition-group>
 (#8748)

---
 src/compiler/parser/index.js              | 16 ++++++++++++++--
 test/unit/modules/compiler/parser.spec.js | 11 +++++++++++
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 5bf124b4160..56c996e8fd1 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -331,8 +331,20 @@ export function processElement (element: ASTElement, options: CompilerOptions) {
 function processKey (el) {
   const exp = getBindingAttr(el, 'key')
   if (exp) {
-    if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn(`<template> cannot be keyed. Place the key on real elements instead.`)
+    if (process.env.NODE_ENV !== 'production') {
+      if (el.tag === 'template') {
+        warn(`<template> cannot be keyed. Place the key on real elements instead.`)
+      }
+      if (el.for) {
+        const iterator = el.iterator2 || el.iterator1
+        const parent = el.parent
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn(
+            `Do not use v-for index as key on <transtion-group> children, ` +
+            `this is the same as not using keys.`
+          )
+        }
+      }
     }
     el.key = exp
   }
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 32c1cc3580b..bc4285b9eb8 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -242,6 +242,17 @@ describe('parser', () => {
     expect('<template> cannot be keyed').toHaveBeenWarned()
   })
 
+  it('warn the child of the <transition-group> component has sequential index', () => {
+    parse(`
+      <div>
+        <transition-group>
+          <i v-for="(o, i) of arr" :key="i"></i>
+        </transition-group>
+      </div>
+    `, baseOptions)
+    expect('Do not use v-for index as key on <transtion-group> children').toHaveBeenWarned()
+  })
+
   it('v-pre directive', () => {
     const ast = parse('<div v-pre id="message1"><p>{{msg}}</p></div>', baseOptions)
     expect(ast.pre).toBe(true)

From 2e472c5e5e559a7a4083b4164ffe0c3911ce0651 Mon Sep 17 00:00:00 2001
From: Matt Lavallee <matthew.t.lavallee@gmail.com>
Date: Fri, 30 Nov 2018 17:36:08 -0500
Subject: [PATCH 573/911] fix(component): clean up memory leak after loading
 async component completes (fix #8740) (#8755)

* fix(component): clean up memory leak after loading async component completes

* fix(async component): accounting for async components with loading property

* refactor(component): simplifying memory cleanup logic
---
 src/core/vdom/helpers/resolve-async-component.js     | 12 ++++++++----
 .../unit/features/transition/transition-mode.spec.js |  2 +-
 test/unit/modules/vdom/create-component.spec.js      |  2 ++
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 99ce5ce47ed..44ca238854f 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -61,10 +61,14 @@ export function resolveAsyncComponent (
     const contexts = factory.contexts = [context]
     let sync = true
 
-    const forceRender = () => {
+    const forceRender = (renderCompleted: boolean) => {
       for (let i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate()
       }
+
+      if (renderCompleted) {
+        contexts.length = 0
+      }
     }
 
     const resolve = once((res: Object | Class<Component>) => {
@@ -73,7 +77,7 @@ export function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender()
+        forceRender(true)
       }
     })
 
@@ -84,7 +88,7 @@ export function resolveAsyncComponent (
       )
       if (isDef(factory.errorComp)) {
         factory.error = true
-        forceRender()
+        forceRender(true)
       }
     })
 
@@ -111,7 +115,7 @@ export function resolveAsyncComponent (
             setTimeout(() => {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true
-                forceRender()
+                forceRender(false)
               }
             }, res.delay || 200)
           }
diff --git a/test/unit/features/transition/transition-mode.spec.js b/test/unit/features/transition/transition-mode.spec.js
index 6e4f5be06ca..f8afca82f5e 100644
--- a/test/unit/features/transition/transition-mode.spec.js
+++ b/test/unit/features/transition/transition-mode.spec.js
@@ -457,7 +457,7 @@ if (!isIE9) {
             setTimeout(() => {
               resolve({ template: '<div><h1>component B</h1></div>' })
               Vue.nextTick(next)
-            }, (duration + buffer) * 1.5)
+            }, (duration + buffer) * 1.7)
           }
         },
         data: {
diff --git a/test/unit/modules/vdom/create-component.spec.js b/test/unit/modules/vdom/create-component.spec.js
index db0c59e3746..e69fca0eff3 100644
--- a/test/unit/modules/vdom/create-component.spec.js
+++ b/test/unit/modules/vdom/create-component.spec.js
@@ -58,6 +58,7 @@ describe('create-component', () => {
       vnode = createComponent(async, data, vm, vm)
       expect(vnode.isComment).toBe(true) // not to be loaded yet.
       expect(vnode.asyncFactory).toBe(async)
+      expect(vnode.asyncFactory.contexts.length).toEqual(1)
     }
     function loaded () {
       vnode = createComponent(async, data, vm, vm)
@@ -68,6 +69,7 @@ describe('create-component', () => {
       expect(vnode.elm).toBeUndefined()
       expect(vnode.ns).toBeUndefined()
       expect(vnode.context).toEqual(vm)
+      expect(vnode.asyncFactory.contexts.length).toEqual(0)
       expect(vm.$forceUpdate).toHaveBeenCalled()
       done()
     }

From e29fbad0aceeb51a3e528fa8f2898522df4e0a0f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 30 Nov 2018 17:37:30 -0500
Subject: [PATCH 574/911] chore: fix lint

---
 src/core/vdom/create-functional-component.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 4233ade22e8..de3b1873517 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -124,7 +124,7 @@ function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderCo
   clone.fnContext = contextVm
   clone.fnOptions = options
   if (process.env.NODE_ENV !== 'production') {
-    ;(clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext
   }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot

From 374861f72b8b8fda5aa5d54f96bc2f297c775719 Mon Sep 17 00:00:00 2001
From: Sultan Iman <354868+imanhodjaev@users.noreply.github.com>
Date: Fri, 30 Nov 2018 23:38:09 +0100
Subject: [PATCH 575/911] refactor: remove redundant ternary (#8848)

---
 src/core/instance/state.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 50311b2f618..948dc08bc5d 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -224,9 +224,7 @@ export function defineComputed (
         ? createComputedGetter(key)
         : userDef.get
       : noop
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
-      : noop
+    sharedPropertyDefinition.set = userDef.set || noop
   }
   if (process.env.NODE_ENV !== 'production' &&
       sharedPropertyDefinition.set === noop) {

From 80f17fa498f5df0388412877799dbd7573c44b2d Mon Sep 17 00:00:00 2001
From: Kael <kaelwd@gmail.com>
Date: Sat, 1 Dec 2018 09:54:16 +1100
Subject: [PATCH 576/911] fix(core): skip mixins and extends if child is
 already merged (#8870)

fix #8865
---
 src/core/util/options.js                     | 21 +++++++++++++-------
 test/unit/features/global-api/extend.spec.js | 19 ++++++++++++++++++
 2 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 5f0d10d3361..2906ddd1910 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -378,15 +378,22 @@ export function mergeOptions (
   normalizeProps(child, vm)
   normalizeInject(child, vm)
   normalizeDirectives(child)
-  const extendsFrom = child.extends
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm)
-  }
-  if (child.mixins) {
-    for (let i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm)
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm)
+    }
+    if (child.mixins) {
+      for (let i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm)
+      }
     }
   }
+
   const options = {}
   let key
   for (key in parent) {
diff --git a/test/unit/features/global-api/extend.spec.js b/test/unit/features/global-api/extend.spec.js
index 4a4a73505b9..f0867ac1b5a 100644
--- a/test/unit/features/global-api/extend.spec.js
+++ b/test/unit/features/global-api/extend.spec.js
@@ -71,6 +71,25 @@ describe('Global API: extend', () => {
     expect(calls).toEqual([1, 2, 3])
   })
 
+  it('should not merge nested mixins created with Vue.extend', () => {
+    const A = Vue.extend({
+      created: () => {}
+    })
+    const B = Vue.extend({
+      mixins: [A],
+      created: () => {}
+    })
+    const C = Vue.extend({
+      extends: B,
+      created: () => {}
+    })
+    const D = Vue.extend({
+      mixins: [C],
+      created: () => {}
+    })
+    expect(D.options.created.length).toBe(4)
+  })
+
   it('should merge methods', () => {
     const A = Vue.extend({
       methods: {

From 758524134e71ae025238e16a4c1f2b30a1310fe8 Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Sat, 1 Dec 2018 06:56:41 +0800
Subject: [PATCH 577/911] fix: v-bind object should be overridable with
 kebab-cased props (#8845)

In addition .sync should generate camelCased event name
---
 .../render-helpers/bind-object-props.js       |  8 +++++---
 test/unit/features/directives/bind.spec.js    | 20 +++++++++++++++++++
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/render-helpers/bind-object-props.js b/src/core/instance/render-helpers/bind-object-props.js
index c71dce5c4c2..9a7b46dfa95 100644
--- a/src/core/instance/render-helpers/bind-object-props.js
+++ b/src/core/instance/render-helpers/bind-object-props.js
@@ -6,7 +6,8 @@ import {
   warn,
   isObject,
   toObject,
-  isReservedAttribute
+  isReservedAttribute,
+  camelize
 } from 'core/util/index'
 
 /**
@@ -43,12 +44,13 @@ export function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {})
         }
-        if (!(key in hash)) {
+        const camelizedKey = camelize(key)
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key]
 
           if (isSync) {
             const on = data.on || (data.on = {})
-            on[`update:${key}`] = function ($event) {
+            on[`update:${camelizedKey}`] = function ($event) {
               value[key] = $event
             }
           }
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index e9ab1bf7361..07d0704bf2d 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -187,6 +187,26 @@ describe('Directive v-bind', () => {
     }).then(done)
   })
 
+  it('bind object with explicit overrides', () => {
+    const vm = new Vue({
+      template: `<test v-bind="test" data-foo="foo" dataBar="bar"/>`,
+      components: {
+        test: {
+          template: '<div :data-foo="dataFoo" :data-bar="dataBar"></div>',
+          props: ['dataFoo', 'dataBar']
+        }
+      },
+      data: {
+        test: {
+          dataFoo: 'hi',
+          dataBar: 'bye'
+        }
+      }
+    }).$mount()
+    expect(vm.$el.getAttribute('data-foo')).toBe('foo')
+    expect(vm.$el.getAttribute('data-bar')).toBe('bar')
+  })
+
   it('.sync modifier with bind object', done => {
     const vm = new Vue({
       template: `<test v-bind.sync="test"/>`,

From 2bb3199da718be4e3150b5555bbf12364c3987be Mon Sep 17 00:00:00 2001
From: Daniel Santana Rocha <danielsantanarocha@gmail.com>
Date: Fri, 30 Nov 2018 21:01:45 -0200
Subject: [PATCH 578/911] polish: warn duplicate keys when patching children
 into empty node (#8881)

close #8832
---
 src/core/vdom/patch.js                        |  3 +++
 test/unit/modules/vdom/patch/children.spec.js | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 81289f01521..8857294b8f7 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -550,6 +550,9 @@ export function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly)
       } else if (isDef(ch)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkDuplicateKeys(ch)
+        }
         if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '')
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue)
       } else if (isDef(oldCh)) {
diff --git a/test/unit/modules/vdom/patch/children.spec.js b/test/unit/modules/vdom/patch/children.spec.js
index ec4d521955c..f42c5413edd 100644
--- a/test/unit/modules/vdom/patch/children.spec.js
+++ b/test/unit/modules/vdom/patch/children.spec.js
@@ -530,4 +530,16 @@ describe('vdom patch: children', () => {
     patch(vnode2, vnode3)
     expect(`Duplicate keys detected: 'b'`).toHaveBeenWarned()
   })
+
+  it('should warn with duplicate keys: patchVnode with empty oldVnode', () => {
+    function makeNode (key) {
+      return new VNode('li', { key: key })
+    }
+
+    const vnode1 = new VNode('div')
+    const vnode2 = new VNode('div', undefined, ['1', '2', '3', '4', '4'].map(makeNode))
+
+    patch(vnode1, vnode2)
+    expect(`Duplicate keys detected: '4'`).toHaveBeenWarned()
+  })
 })

From 05001e695ebd0b0504d664197a4771463a0f5328 Mon Sep 17 00:00:00 2001
From: Jovino Xu <xujiongbo@gmail.com>
Date: Sat, 1 Dec 2018 07:02:54 +0800
Subject: [PATCH 579/911] fix(compiler): should keep newline after unary tags
 in <pre> (#8965)

fix #8950
---
 src/compiler/parser/html-parser.js        | 2 +-
 test/unit/modules/compiler/parser.spec.js | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index e4925f38d34..b0ef2d649e8 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -106,7 +106,7 @@ export function parseHTML (html, options) {
         const startTagMatch = parseStartTag()
         if (startTagMatch) {
           handleStartTag(startTagMatch)
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1)
           }
           continue
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index bc4285b9eb8..07d6148225c 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -667,6 +667,15 @@ describe('parser', () => {
     expect(pre2.children[0].text).toBe('\nabc')
   })
 
+  it('keep first newline after unary tag in <pre>', () => {
+    const options = extend({}, baseOptions)
+    const ast = parse('<pre>abc<input>\ndef</pre>', options)
+    expect(ast.children[1].type).toBe(1)
+    expect(ast.children[1].tag).toBe('input')
+    expect(ast.children[2].type).toBe(3)
+    expect(ast.children[2].text).toBe('\ndef')
+  })
+
   it('forgivingly handle < in plain text', () => {
     const options = extend({}, baseOptions)
     const ast = parse('<p>1 < 2 < 3</p>', options)

From a7658e03a16dc507f0abeba41aee705f773727d0 Mon Sep 17 00:00:00 2001
From: Kael <kaelwd@gmail.com>
Date: Sat, 1 Dec 2018 10:04:05 +1100
Subject: [PATCH 580/911] fix(data): skip recursive call if values are
 identical (#8967)

---
 src/core/util/options.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 2906ddd1910..fc7826dc01d 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -55,7 +55,11 @@ function mergeData (to: Object, from: ?Object): Object {
     fromVal = from[key]
     if (!hasOwn(to, key)) {
       set(to, key, fromVal)
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal)
     }
   }

From 613cb52bf3e5fd6caee0a94fab953ac9fdd37924 Mon Sep 17 00:00:00 2001
From: Alexey Tirman <xrenas@gmail.com>
Date: Sat, 1 Dec 2018 02:06:24 +0300
Subject: [PATCH 581/911] polish: improve invalid method warning with type info
 (#8974)

close #8017
---
 src/core/instance/state.js                 | 6 +++---
 test/unit/features/options/methods.spec.js | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 948dc08bc5d..9fec53f6262 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -257,9 +257,9 @@ function initMethods (vm: Component, methods: Object) {
   const props = vm.$options.props
   for (const key in methods) {
     if (process.env.NODE_ENV !== 'production') {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          `Method "${key}" has an undefined value in the component definition. ` +
+          `Method "${key}" has type "${typeof methods[key]}" in the component definition. ` +
           `Did you reference the function correctly?`,
           vm
         )
@@ -277,7 +277,7 @@ function initMethods (vm: Component, methods: Object) {
         )
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm)
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm)
   }
 }
 
diff --git a/test/unit/features/options/methods.spec.js b/test/unit/features/options/methods.spec.js
index 34f9ee88fc6..f1e5fc68b27 100644
--- a/test/unit/features/options/methods.spec.js
+++ b/test/unit/features/options/methods.spec.js
@@ -19,13 +19,13 @@ describe('Options methods', () => {
     expect(vm.a).toBe(2)
   })
 
-  it('should warn undefined methods', () => {
+  it('should warn methods of not function type', () => {
     new Vue({
       methods: {
-        hello: undefined
+        hello: {}
       }
     })
-    expect(`Method "hello" has an undefined value in the component definition`).toHaveBeenWarned()
+    expect('Method "hello" has type "object" in the component definition').toHaveBeenWarned()
   })
 
   it('should warn methods conflicting with data', () => {

From c711ec189aaf46399756e34d933ba5e0b6576c36 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8B=BC=E6=97=8F=E5=B0=8F=E7=8B=88?= <1340641314@qq.com>
Date: Sat, 1 Dec 2018 12:27:24 +0800
Subject: [PATCH 582/911] fix(types): support chain call for Vue.use and
 Vue.mixin (#8595)

---
 flow/global-api.js                          | 4 ++--
 test/unit/features/global-api/mixin.spec.js | 5 +++++
 test/unit/features/global-api/use.spec.js   | 5 +++++
 types/test/vue-test.ts                      | 9 +++++++++
 types/vue.d.ts                              | 6 +++---
 5 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/flow/global-api.js b/flow/global-api.js
index 0b2efb23ac3..eab244c22bb 100644
--- a/flow/global-api.js
+++ b/flow/global-api.js
@@ -8,8 +8,8 @@ declare interface GlobalAPI {
   set: <T>(target: Object | Array<T>, key: string | number, value: T) => T;
   delete: <T>(target: Object| Array<T>, key: string | number) => void;
   nextTick: (fn: Function, context?: Object) => void | Promise<*>;
-  use: (plugin: Function | Object) => void;
-  mixin: (mixin: Object) => void;
+  use: (plugin: Function | Object) => GlobalAPI;
+  mixin: (mixin: Object) => GlobalAPI;
   compile: (template: string) => { render: Function, staticRenderFns: Array<Function> };
 
   directive: (id: string, def?: Function | Object) => Function | Object | void;
diff --git a/test/unit/features/global-api/mixin.spec.js b/test/unit/features/global-api/mixin.spec.js
index bcf962402c2..0b83773a5d4 100644
--- a/test/unit/features/global-api/mixin.spec.js
+++ b/test/unit/features/global-api/mixin.spec.js
@@ -162,4 +162,9 @@ describe('Global API: mixin', () => {
     expect(base).toHaveBeenCalled()
     expect(injected).toHaveBeenCalled()
   })
+
+  // #8595
+  it('chain call', () => {
+    expect(Vue.mixin({})).toBe(Vue)
+  })
 })
diff --git a/test/unit/features/global-api/use.spec.js b/test/unit/features/global-api/use.spec.js
index 00053f808a7..d54ff0750f3 100644
--- a/test/unit/features/global-api/use.spec.js
+++ b/test/unit/features/global-api/use.spec.js
@@ -49,4 +49,9 @@ describe('Global API: use', () => {
     expect(Vue.options.directives['plugin-test']).toBeUndefined()
     expect(Ctor2.options.directives['plugin-test']).toBe(def)
   })
+
+  // #8595
+  it('chain call', () => {
+    expect(Vue.use(() => {})).toBe(Vue)
+  })
 })
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 326969c1637..6fe0e56182c 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -97,6 +97,15 @@ class Test extends Vue {
     this.use;
     this.mixin(Test);
     this.compile("<div>{{ message }}</div>");
+    this
+      .use(() => {
+        
+      })
+      .use(() => {
+        
+      })
+      .mixin({})
+      .mixin({});
   }
 }
 
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 179fb5fe38e..29667ead1f6 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -111,9 +111,9 @@ export interface VueConstructor<V extends Vue = Vue> {
   component<Props>(id: string, definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
   component(id: string, definition?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 
-  use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): void;
-  use(plugin: PluginObject<any> | PluginFunction<any>, ...options: any[]): void;
-  mixin(mixin: VueConstructor | ComponentOptions<Vue>): void;
+  use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): this;
+  use(plugin: PluginObject<any> | PluginFunction<any>, ...options: any[]): this;
+  mixin(mixin: VueConstructor | ComponentOptions<Vue>): this;
   compile(template: string): {
     render(createElement: typeof Vue.prototype.$createElement): VNode;
     staticRenderFns: (() => VNode)[];

From ac217d2472bb92ce901ef1f46595b44a1b5d1a18 Mon Sep 17 00:00:00 2001
From: st-sloth <st-sloth@users.noreply.github.com>
Date: Sat, 1 Dec 2018 09:28:29 +0500
Subject: [PATCH 583/911] fix(types): fix `renderError`arguments type (#8636)

fix #8635
---
 types/options.d.ts         | 2 +-
 types/test/options-test.ts | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index bd96b6476d3..7d5861d1722 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -70,7 +70,7 @@ export interface ComponentOptions<
   template?: string;
   // hack is for funcitonal component type inference, should not used in user code
   render?(createElement: CreateElement, hack: RenderContext<Props>): VNode;
-  renderError?: (h: () => VNode, err: Error) => VNode;
+  renderError?(createElement: CreateElement, err: Error): VNode;
   staticRenderFns?: ((createElement: CreateElement) => VNode)[];
 
   beforeCreate?(this: V): void;
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 1c6ecff6daa..8755564c2a3 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -202,6 +202,9 @@ Vue.component('component', {
       [createElement("div", "message")]
     ]);
   },
+  renderError(createElement, err) {
+    return createElement('pre', { style: { color: 'red' }}, err.stack)
+  },
   staticRenderFns: [],
 
   beforeCreate() {

From 0ba79e2588309ba386f570ed84d372611c4dd165 Mon Sep 17 00:00:00 2001
From: nel215 <otomo.yuhei@gmail.com>
Date: Fri, 30 Nov 2018 20:28:52 -0800
Subject: [PATCH 584/911] fix(types): accept `number` type as key on
 Vue.set/delete (#8707) (#8709)

---
 types/test/vue-test.ts | 2 ++
 types/vue.d.ts         | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 6fe0e56182c..72390b083b1 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -87,8 +87,10 @@ class Test extends Vue {
     this.nextTick(() => {});
     this.nextTick().then(() => {});
     this.set({}, "", "");
+    this.set({}, 1, "");
     this.set([true, false, true], 1, true);
     this.delete({}, "");
+    this.delete({}, 1);
     this.delete([true, false], 0);
     this.directive("", {bind() {}});
     this.filter("", (value: number) => value);
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 29667ead1f6..44a892ead3b 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -91,9 +91,9 @@ export interface VueConstructor<V extends Vue = Vue> {
 
   nextTick(callback: () => void, context?: any[]): void;
   nextTick(): Promise<void>
-  set<T>(object: object, key: string, value: T): T;
+  set<T>(object: object, key: string | number, value: T): T;
   set<T>(array: T[], key: number, value: T): T;
-  delete(object: object, key: string): void;
+  delete(object: object, key: string | number): void;
   delete<T>(array: T[], key: number): void;
 
   directive(

From 3cd4af4af0a8a67f5887d5fc967147d433c8612c Mon Sep 17 00:00:00 2001
From: Kaoru Hagihara <hagiharak4294967296@gmail.com>
Date: Sat, 1 Dec 2018 13:30:31 +0900
Subject: [PATCH 585/911] fix(types): support typing $el as SVGElement (#8809)

---
 types/test/vue-test.ts | 1 +
 types/vue.d.ts         | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 72390b083b1..d9a8379a83f 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -19,6 +19,7 @@ class Test extends Vue {
   }
 
   // test property reification
+  $el!: HTMLElement | SVGElement;
   $refs!: {
     vue: Vue,
     element: HTMLInputElement,
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 44a892ead3b..3832f2c9e41 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -21,7 +21,7 @@ export interface CreateElement {
 }
 
 export interface Vue {
-  readonly $el: HTMLElement;
+  readonly $el: Element;
   readonly $options: ComponentOptions<Vue>;
   readonly $parent: Vue;
   readonly $root: Vue;

From 76443803e8878dc13a31ebed119abfd31573e7f1 Mon Sep 17 00:00:00 2001
From: thenickname <n.mussin@gmail.com>
Date: Sat, 1 Dec 2018 05:31:45 +0100
Subject: [PATCH 586/911] Typings: Improve $slots and $scopedSlots type to
 prevent unchecked access to undefined (#8946)

* fix(types): Declare $scopedSlots as potentially undefined to enable stricter TS checks

* fix(types): Fix tests

* fix(types): declare $slots option as potentially undefined

declare $slots option as potentially undefined to enable stricter TS checks
---
 types/test/options-test.ts | 6 +++---
 types/vue.d.ts             | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 8755564c2a3..6c817e23d19 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -304,8 +304,8 @@ Vue.component('component-with-scoped-slot', {
     child: {
       render (this: Vue, h: CreateElement) {
         return h('div', [
-          this.$scopedSlots['default']({ msg: 'hi' }),
-          this.$scopedSlots['item']({ msg: 'hello' })
+          this.$scopedSlots['default']!({ msg: 'hi' }),
+          this.$scopedSlots['item']!({ msg: 'hello' })
         ])
       }
     }
@@ -314,7 +314,7 @@ Vue.component('component-with-scoped-slot', {
 
 Vue.component('narrow-array-of-vnode-type', {
   render (h): VNode {
-    const slot = this.$scopedSlots.default({})
+    const slot = this.$scopedSlots.default!({})
     if (typeof slot !== 'string') {
       const first = slot[0]
       if (!Array.isArray(first) && typeof first !== 'string') {
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 3832f2c9e41..ba8e68e942e 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -27,8 +27,8 @@ export interface Vue {
   readonly $root: Vue;
   readonly $children: Vue[];
   readonly $refs: { [key: string]: Vue | Element | Vue[] | Element[] };
-  readonly $slots: { [key: string]: VNode[] };
-  readonly $scopedSlots: { [key: string]: ScopedSlot };
+  readonly $slots: { [key: string]: VNode[] | undefined };
+  readonly $scopedSlots: { [key: string]: ScopedSlot | undefined };
   readonly $isServer: boolean;
   readonly $data: Record<string, any>;
   readonly $props: Record<string, any>;

From 97086f365808a040f6cf1ddb12e2b3f63d7769bf Mon Sep 17 00:00:00 2001
From: hugoazevedosoares <hugo.soares@outlook.com>
Date: Sat, 1 Dec 2018 02:41:27 -0200
Subject: [PATCH 587/911] fix(types): fix vm.$once argument type (#8995)

vm.$once should accept an event or array of events as first parameter.

fix #8983
---
 types/vue.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/vue.d.ts b/types/vue.d.ts
index ba8e68e942e..39967963e8d 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -53,7 +53,7 @@ export interface Vue {
     options?: WatchOptions
   ): (() => void);
   $on(event: string | string[], callback: Function): this;
-  $once(event: string, callback: Function): this;
+  $once(event: string | string[], callback: Function): this;
   $off(event?: string | string[], callback?: Function): this;
   $emit(event: string, ...args: any[]): this;
   $nextTick(callback: (this: this) => void): void;

From 1129d184482720bb52fa61f0a309645b7caaddd9 Mon Sep 17 00:00:00 2001
From: Joseph Anglada <fluorine@users.noreply.github.com>
Date: Sat, 1 Dec 2018 00:57:26 -0400
Subject: [PATCH 588/911] refactor: reduce if-else nesting, coalesce conditions
 (#9060)

---
 src/core/instance/render.js | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 70fb2c0e57a..be12d726034 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -86,15 +86,11 @@ export function renderMixin (Vue: Class<Component>) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
-          } catch (e) {
-            handleError(e, vm, `renderError`)
-            vnode = vm._vnode
-          }
-        } else {
+      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
+        } catch (e) {
+          handleError(e, vm, `renderError`)
           vnode = vm._vnode
         }
       } else {

From 05e8bcfe5d308f280f3640df96bd170fbcf1a9b5 Mon Sep 17 00:00:00 2001
From: Jay Fong <fjc0kb@gmail.com>
Date: Sat, 1 Dec 2018 12:58:29 +0800
Subject: [PATCH 589/911] fix: fix server env detection in wechat mini program
 (#9075)

---
 src/core/util/env.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index 07cadd9cf9a..a79cb8d5333 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -41,7 +41,7 @@ export const isServerRendering = () => {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server'
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server'
     } else {
       _isServer = false
     }

From f43ae6d151de3ab00a5fbd1bb5fd3fabf454de85 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julian=20R=C3=BCth?= <julian.rueth@fsfe.org>
Date: Sat, 1 Dec 2018 05:58:58 +0100
Subject: [PATCH 590/911] chore(typo): fix typo (#9085)

---
 types/options.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 7d5861d1722..f6d92b97a16 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -68,7 +68,7 @@ export interface ComponentOptions<
 
   el?: Element | string;
   template?: string;
-  // hack is for funcitonal component type inference, should not used in user code
+  // hack is for functional component type inference, should not be used in user code
   render?(createElement: CreateElement, hack: RenderContext<Props>): VNode;
   renderError?(createElement: CreateElement, err: Error): VNode;
   staticRenderFns?: ((createElement: CreateElement) => VNode)[];

From 33e669b22f69a1f9c9147528360fe0bba85534f0 Mon Sep 17 00:00:00 2001
From: sqal <sqal08@gmail.com>
Date: Sat, 1 Dec 2018 06:05:13 +0100
Subject: [PATCH 591/911] fix(ssr): computed properties should pass vm as first
 argument in ssr (#9090)

fix #8977
---
 src/core/instance/state.js  | 10 ++++++++--
 test/ssr/ssr-string.spec.js | 18 ++++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/core/instance/state.js b/src/core/instance/state.js
index 9fec53f6262..cc1401a3353 100644
--- a/src/core/instance/state.js
+++ b/src/core/instance/state.js
@@ -216,13 +216,13 @@ export function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef
+      : createGetterInvoker(userDef)
     sharedPropertyDefinition.set = noop
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
+        : createGetterInvoker(userDef.get)
       : noop
     sharedPropertyDefinition.set = userDef.set || noop
   }
@@ -253,6 +253,12 @@ function createComputedGetter (key) {
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm: Component, methods: Object) {
   const props = vm.$options.props
   for (const key in methods) {
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index abf91526dd1..a84c7267e08 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1076,6 +1076,24 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  // #8977
+  it('should call computed properties with vm as first argument', done => {
+    renderToString(new Vue({
+      data: {
+        firstName: 'Evan',
+        lastName: 'You'
+      },
+      computed: {
+        fullName: ({ firstName, lastName }) => `${firstName} ${lastName}`,
+      },
+      template: '<div>{{ fullName }}</div>',
+    }), (err, result) => {
+      expect(err).toBeNull()
+      expect(result).toContain('<div data-server-rendered="true">Evan You</div>')
+      done()
+    })
+  })
+
   it('return Promise', done => {
     renderToString(new Vue({
       template: `<div>{{ foo }}</div>`,

From b111de486b1bdc747fe0f5795fe22697d151bb8c Mon Sep 17 00:00:00 2001
From: Mitar <mitar.github@tnode.com>
Date: Fri, 30 Nov 2018 21:07:46 -0800
Subject: [PATCH 592/911] fix: make sure global state is restored in the case
 of an exception in macrotask callback (#9093)

---
 src/core/util/next-tick.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/core/util/next-tick.js b/src/core/util/next-tick.js
index 07a9e841843..cc066ed86f6 100644
--- a/src/core/util/next-tick.js
+++ b/src/core/util/next-tick.js
@@ -81,9 +81,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 export function withMacroTask (fn: Function): Function {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true
-    const res = fn.apply(null, arguments)
-    useMacroTask = false
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false    
+    }
   })
 }
 

From b0ccb8618382b6ee143d68cf4498d6b3ec18aa81 Mon Sep 17 00:00:00 2001
From: James George <jamesgeorge998001@gmail.com>
Date: Sat, 1 Dec 2018 10:53:58 +0530
Subject: [PATCH 593/911] chore: rephrase comment (#9100)

---
 types/vue.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/vue.d.ts b/types/vue.d.ts
index 39967963e8d..349c3432908 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -79,7 +79,7 @@ export interface VueConfiguration {
 
 export interface VueConstructor<V extends Vue = Vue> {
   new <Data = object, Methods = object, Computed = object, PropNames extends string = never>(options?: ThisTypedComponentOptionsWithArrayProps<V, Data, Methods, Computed, PropNames>): CombinedVueInstance<V, Data, Methods, Computed, Record<PropNames, any>>;
-  // ideally, the return type should just contains Props, not Record<keyof Props, any>. But TS requires Base constructors must all have the same return type.
+  // ideally, the return type should just contain Props, not Record<keyof Props, any>. But TS requires to have Base constructors with the same return type.
   new <Data = object, Methods = object, Computed = object, Props = object>(options?: ThisTypedComponentOptionsWithRecordProps<V, Data, Methods, Computed, Props>): CombinedVueInstance<V, Data, Methods, Computed, Record<keyof Props, any>>;
   new (options?: ComponentOptions<V>): CombinedVueInstance<V, object, object, object, Record<keyof object, any>>;
 

From 0d62bb84ffa1af7a4826aecc11c429c7a020645c Mon Sep 17 00:00:00 2001
From: ysj16 <504427021@qq.com>
Date: Sat, 1 Dec 2018 13:24:30 +0800
Subject: [PATCH 594/911] fix: actually disable dep collection when invoking
 lifecycle hooks (#9095)

fix #9046
---
 src/core/observer/dep.js                      |  9 ++++----
 .../instance/methods-lifecycle.spec.js        | 21 +++++++++++++++++++
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/src/core/observer/dep.js b/src/core/observer/dep.js
index 1dd37783490..d344aff9445 100644
--- a/src/core/observer/dep.js
+++ b/src/core/observer/dep.js
@@ -55,11 +55,12 @@ export default class Dep {
 Dep.target = null
 const targetStack = []
 
-export function pushTarget (_target: ?Watcher) {
-  if (Dep.target) targetStack.push(Dep.target)
-  Dep.target = _target
+export function pushTarget (target: ?Watcher) {
+  targetStack.push(target)
+  Dep.target = target
 }
 
 export function popTarget () {
-  Dep.target = targetStack.pop()
+  targetStack.pop()
+  Dep.target = targetStack[targetStack.length - 1]
 }
diff --git a/test/unit/features/instance/methods-lifecycle.spec.js b/test/unit/features/instance/methods-lifecycle.spec.js
index 71525be2f0b..1e424a5c9be 100644
--- a/test/unit/features/instance/methods-lifecycle.spec.js
+++ b/test/unit/features/instance/methods-lifecycle.spec.js
@@ -1,4 +1,5 @@
 import Vue from 'vue'
+import Dep from 'core/observer/dep'
 
 describe('Instance methods lifecycle', () => {
   describe('$mount', () => {
@@ -32,6 +33,26 @@ describe('Instance methods lifecycle', () => {
       expect(vm.$el.tagName).toBe('DIV')
       expect(vm.$el.textContent).toBe('hi')
     })
+
+    it('Dep.target should be undefined in lifecycle', () => {
+      const vm = new Vue({
+        template: '<div><my-component></my-component></div>',
+        components: {
+          myComponent: {
+            template: '<div>hi</div>',
+            mounted () {
+              const _msg = this.msg
+              expect(Dep.target).toBe(undefined)
+            },
+            computed: {
+              msg () {
+                return 1
+              }
+            }
+          }
+        }
+      }).$mount()
+    })
   })
 
   describe('$destroy', () => {

From 0b31647c41b0c916d40b962723b1de06672d0e01 Mon Sep 17 00:00:00 2001
From: Husam Ibrahim <39692071+HusamIbrahim@users.noreply.github.com>
Date: Sat, 1 Dec 2018 08:29:37 +0300
Subject: [PATCH 595/911] chore: fix grammar in core/observer/index.js comments
 (#9116)

---
 src/core/observer/index.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/core/observer/index.js b/src/core/observer/index.js
index b9ef4b8a41a..545adb64025 100644
--- a/src/core/observer/index.js
+++ b/src/core/observer/index.js
@@ -37,7 +37,7 @@ export function toggleObserving (value: boolean) {
 export class Observer {
   value: any;
   dep: Dep;
-  vmCount: number; // number of vms that has this object as root $data
+  vmCount: number; // number of vms that have this object as root $data
 
   constructor (value: any) {
     this.value = value
@@ -57,7 +57,7 @@ export class Observer {
   }
 
   /**
-   * Walk through each property and convert them into
+   * Walk through all properties and convert them into
    * getter/setters. This method should only be called when
    * value type is Object.
    */
@@ -81,7 +81,7 @@ export class Observer {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
 function protoAugment (target, src: Object) {
@@ -91,7 +91,7 @@ function protoAugment (target, src: Object) {
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */

From ef8524ab7db8d64ac449ce74f5858aa9d91357ad Mon Sep 17 00:00:00 2001
From: Subhash <subhash_28@hotmail.com>
Date: Sat, 1 Dec 2018 11:03:59 +0530
Subject: [PATCH 596/911] fix(compiler):  wrap scoped slots v-if conditions in
 parens (#9119)

fix #9114
---
 src/compiler/codegen/index.js              |  2 +-
 test/unit/modules/compiler/codegen.spec.js | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index f75d6300f66..d5b0aa09bd0 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -367,7 +367,7 @@ function genScopedSlot (
   const fn = `function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
       ? el.if
-        ? `${el.if}?${genChildren(el, state) || 'undefined'}:undefined`
+        ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 0758142ed27..57caa60ada1 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -208,6 +208,17 @@ describe('codegen', () => {
     )
   })
 
+  it('generate scoped slot with multiline v-if', () => {
+    assertCodegen(
+      '<foo><template v-if="\nshow\n" slot-scope="bar">{{ bar }}</template></foo>',
+      `with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return (\nshow\n)?[_v(_s(bar))]:undefined}}])})}`
+    )
+    assertCodegen(
+      '<foo><div v-if="\nshow\n" slot="foo" slot-scope="bar">{{ bar }}</div></foo>',
+      `with(this){return _c(\'foo\',{scopedSlots:_u([{key:"foo",fn:function(bar){return (\nshow\n)?_c(\'div\',{},[_v(_s(bar))]):_e()}}])})}`
+    )
+  })
+
   it('generate class binding', () => {
     // static
     assertCodegen(

From 097f6229dffc34af452b106ad2a3b58845588807 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 1 Dec 2018 17:05:36 -0500
Subject: [PATCH 597/911] fix(core): avoid mutating original children when
 cloning vnode

The on-demand clone strategy introduced in 956756b mutates the owner
array of the cloned vnode. This causes the newly cloned vnode to be
destroyed when the parent node is destroyed. This is fixed by cloning
the children array when cloning a vnode.

fix #7975
---
 src/core/vdom/vnode.js                        |  5 +-
 .../features/component/component-slot.spec.js | 54 +++++++++++++++++++
 2 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/vnode.js b/src/core/vdom/vnode.js
index 0e3e2e9e635..bdc17e9f974 100644
--- a/src/core/vdom/vnode.js
+++ b/src/core/vdom/vnode.js
@@ -90,7 +90,10 @@ export function cloneVNode (vnode: VNode): VNode {
   const cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index e667a46ef89..75b5254601c 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -886,4 +886,58 @@ describe('Component slot', () => {
       expect(vm.$el.textContent).toBe('foo')
     }).then(done)
   })
+
+  // #7975
+  it('should update named slot correctly when its position in the tree changed', done => {
+    const ChildComponent = {
+      template: '<b>{{ message }}</b>',
+      props: ['message']
+    }
+     let parentVm
+    const ParentComponent = {
+      template: `
+        <div>
+          <span v-if="alter">
+            <span><slot name="foo" /></span>
+          </span>
+          <span v-else>
+            <slot name="foo" />
+          </span>
+        </div>
+      `,
+      data () {
+        return {
+          alter: true
+        }
+      },
+      mounted () {
+        parentVm = this
+      }
+    }
+     const vm = new Vue({
+      template: `
+        <parent-component>
+          <span slot="foo">
+            <child-component :message="message" />
+          </span>
+        </parent-component>
+      `,
+      components: {
+        ChildComponent,
+        ParentComponent
+      },
+      data () {
+        return {
+          message: 1
+        }
+      }
+    }).$mount()
+     expect(vm.$el.firstChild.innerHTML).toBe('<span><span><b>1</b></span></span>')
+    parentVm.alter = false
+    waitForUpdate(() => {
+      vm.message = 2
+    }).then(() => {
+      expect(vm.$el.firstChild.innerHTML).toBe('<span><b>2</b></span>')
+    }).then(done)
+  })
 })

From 530ca1b2db315fbd0e360807b2031d26665c5d3d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 1 Dec 2018 21:07:18 -0500
Subject: [PATCH 598/911] fix(core): properly handle reused vnodes

This also removes the restrictions on rendering the same slot multiple
times.

close #7913
---
 .../instance/render-helpers/render-slot.js    | 14 +---
 src/core/instance/render.js                   |  8 ---
 src/core/vdom/patch.js                        | 26 +++++--
 .../features/component/component-slot.spec.js | 70 ++++++++++---------
 4 files changed, 56 insertions(+), 62 deletions(-)

diff --git a/src/core/instance/render-helpers/render-slot.js b/src/core/instance/render-helpers/render-slot.js
index a58daa74e62..52221f4bbc8 100644
--- a/src/core/instance/render-helpers/render-slot.js
+++ b/src/core/instance/render-helpers/render-slot.js
@@ -26,19 +26,7 @@ export function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback
   } else {
-    const slotNodes = this.$slots[name]
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
-        warn(
-          `Duplicate presence of slot "${name}" found in the same render tree ` +
-          `- this will likely cause render errors.`,
-          this
-        )
-      }
-      slotNodes._rendered = true
-    }
-    nodes = slotNodes || fallback
+    nodes = this.$slots[name] || fallback
   }
 
   const target = props && props.slot
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index be12d726034..def4be6db68 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -62,14 +62,6 @@ export function renderMixin (Vue: Class<Component>) {
     const vm: Component = this
     const { render, _parentVnode } = vm.$options
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (process.env.NODE_ENV !== 'production') {
-      for (const key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject
     }
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 8857294b8f7..7e58bced6ac 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -434,20 +434,20 @@ export function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx]
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue)
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx)
         oldStartVnode = oldCh[++oldStartIdx]
         newStartVnode = newCh[++newStartIdx]
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue)
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx)
         oldEndVnode = oldCh[--oldEndIdx]
         newEndVnode = newCh[--newEndIdx]
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue)
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx)
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm))
         oldStartVnode = oldCh[++oldStartIdx]
         newEndVnode = newCh[--newEndIdx]
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue)
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx)
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm)
         oldEndVnode = oldCh[--oldEndIdx]
         newStartVnode = newCh[++newStartIdx]
@@ -461,7 +461,7 @@ export function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld]
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue)
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx)
             oldCh[idxInOld] = undefined
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm)
           } else {
@@ -505,11 +505,23 @@ export function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode)
+    }
+
     const elm = vnode.elm = oldVnode.elm
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -709,7 +721,7 @@ export function createPatchFunction (backend) {
       const isRealElement = isDef(oldVnode.nodeType)
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly)
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly)
       } else {
         if (isRealElement) {
           // mounting to a real element
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 75b5254601c..28dafad437a 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -482,44 +482,46 @@ describe('Component slot', () => {
     }).then(done)
   })
 
-  it('warn duplicate slots', () => {
-    new Vue({
-      template: `<div>
-        <test>
-          <div>foo</div>
-          <div slot="a">bar</div>
-        </test>
-      </div>`,
-      components: {
-        test: {
-          template: `<div>
-            <slot></slot><slot></slot>
-            <div v-for="i in 3"><slot name="a"></slot></div>
-          </div>`
-        }
-      }
-    }).$mount()
-    expect('Duplicate presence of slot "default"').toHaveBeenWarned()
-    expect('Duplicate presence of slot "a"').toHaveBeenWarned()
-  })
-
-  it('should not warn valid conditional slots', () => {
-    new Vue({
-      template: `<div>
-        <test>
-          <div>foo</div>
-        </test>
-      </div>`,
+  it('should support duplicate slots', done => {
+    const vm = new Vue({
+      template: `
+        <foo ref="foo">
+          <div slot="a">{{ n }}</div>
+        </foo>
+      `,
+      data: {
+        n: 1
+      },
       components: {
-        test: {
-          template: `<div>
-            <slot v-if="true"></slot>
-            <slot v-else></slot>
-          </div>`
+        foo: {
+          data() {
+            return { ok: true }
+          },
+          template: `
+            <div>
+              <slot name="a" />
+              <slot v-if="ok" name="a" />
+              <pre><slot name="a" /></pre>
+            </div>
+          `
         }
       }
     }).$mount()
-    expect('Duplicate presence of slot "default"').not.toHaveBeenWarned()
+    expect(vm.$el.innerHTML).toBe(`<div>1</div> <div>1</div> <pre><div>1</div></pre>`)
+    vm.n++
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe(`<div>2</div> <div>2</div> <pre><div>2</div></pre>`)
+      vm.n++
+    }).then(() => {
+      expect(vm.$el.innerHTML).toBe(`<div>3</div> <div>3</div> <pre><div>3</div></pre>`)
+      vm.$refs.foo.ok = false
+    }).then(() => {
+      expect(vm.$el.innerHTML).toBe(`<div>3</div> <!----> <pre><div>3</div></pre>`)
+      vm.n++
+      vm.$refs.foo.ok = true
+    }).then(() => {
+      expect(vm.$el.innerHTML).toBe(`<div>4</div> <div>4</div> <pre><div>4</div></pre>`)
+    }).then(done)
   })
 
   // #3518

From 19c33a7e4072b03069f803263ed0c49feb5f73a9 Mon Sep 17 00:00:00 2001
From: laoxiong <gebilaoxiong@gmail.com>
Date: Mon, 3 Dec 2018 00:32:59 +0800
Subject: [PATCH 599/911] fix(v-on): correctly remove once listener (#8036)

fix #8032
---
 src/core/instance/events.js                  | 20 ++++++++++-----
 src/core/vdom/helpers/update-listeners.js    | 14 ++++++++--
 src/platforms/web/runtime/modules/events.js  |  6 ++---
 src/platforms/weex/runtime/modules/events.js | 25 ++++++++----------
 test/unit/features/directives/on.spec.js     | 27 ++++++++++++++++++++
 5 files changed, 65 insertions(+), 27 deletions(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index dbf45633eae..8225bdecb8e 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -21,25 +21,31 @@ export function initEvents (vm: Component) {
 
 let target: any
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn)
-  } else {
-    target.$on(event, fn)
-  }
+function add (event, fn) {
+  target.$on(event, fn)
 }
 
 function remove (event, fn) {
   target.$off(event, fn)
 }
 
+function createOnceHandler (event, fn) {
+  const _target = target
+  return function onceHandler () {
+    const res = fn.apply(null, arguments)
+    if (res !== null) {
+      _target.$off(event, onceHandler)
+    }
+  }
+}
+
 export function updateComponentListeners (
   vm: Component,
   listeners: Object,
   oldListeners: ?Object
 ) {
   target = vm
-  updateListeners(listeners, oldListeners || {}, add, remove, vm)
+  updateListeners(listeners, oldListeners || {}, add, remove, createOnceHandler, vm)
   target = undefined
 }
 
diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index 11c5a2cd2f8..df58727f12b 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -1,7 +1,13 @@
 /* @flow */
 
 import { warn } from 'core/util/index'
-import { cached, isUndef, isPlainObject } from 'shared/util'
+
+import {
+  cached,
+  isUndef,
+  isTrue,
+  isPlainObject
+} from 'shared/util'
 
 const normalizeEvent = cached((name: string): {
   name: string,
@@ -47,6 +53,7 @@ export function updateListeners (
   oldOn: Object,
   add: Function,
   remove: Function,
+  createOnceHandler: Function,
   vm: Component
 ) {
   let name, def, cur, old, event
@@ -68,7 +75,10 @@ export function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur)
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params)
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture)
+      }
+      add(event.name, cur, event.capture, event.passive, event.params)
     } else if (cur !== old) {
       old.fns = cur
       on[name] = old
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 1e71b667286..e89a38d82c9 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -28,7 +28,7 @@ function normalizeEvents (on) {
 
 let target: any
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler (event, handler, capture) {
   const _target = target // save current target element in closure
   return function onceHandler () {
     const res = handler.apply(null, arguments)
@@ -41,12 +41,10 @@ function createOnceHandler (handler, event, capture) {
 function add (
   event: string,
   handler: Function,
-  once: boolean,
   capture: boolean,
   passive: boolean
 ) {
   handler = withMacroTask(handler)
-  if (once) handler = createOnceHandler(handler, event, capture)
   target.addEventListener(
     event,
     handler,
@@ -77,7 +75,7 @@ function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   const oldOn = oldVnode.data.on || {}
   target = vnode.elm
   normalizeEvents(on)
-  updateListeners(on, oldOn, add, remove, vnode.context)
+  updateListeners(on, oldOn, add, remove, createOnceHandler, vnode.context)
   target = undefined
 }
 
diff --git a/src/platforms/weex/runtime/modules/events.js b/src/platforms/weex/runtime/modules/events.js
index a3f9e25a0ac..c34719483a8 100755
--- a/src/platforms/weex/runtime/modules/events.js
+++ b/src/platforms/weex/runtime/modules/events.js
@@ -4,10 +4,19 @@ import { updateListeners } from 'core/vdom/helpers/update-listeners'
 
 let target: any
 
+function createOnceHandler (event, handler, capture) {
+  const _target = target // save current target element in closure
+  return function onceHandler () {
+    const res = handler.apply(null, arguments)
+    if (res !== null) {
+      remove(event, onceHandler, capture, _target)
+    }
+  }
+}
+
 function add (
   event: string,
   handler: Function,
-  once: boolean,
   capture: boolean,
   passive?: boolean,
   params?: Array<any>
@@ -16,18 +25,6 @@ function add (
     console.log('Weex do not support event in bubble phase.')
     return
   }
-  if (once) {
-    const oldHandler = handler
-    const _target = target // save current target element in closure
-    handler = function (ev) {
-      const res = arguments.length === 1
-        ? oldHandler(ev)
-        : oldHandler.apply(null, arguments)
-      if (res !== null) {
-        remove(event, null, null, _target)
-      }
-    }
-  }
   target.addEvent(event, handler, params)
 }
 
@@ -47,7 +44,7 @@ function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   const on = vnode.data.on || {}
   const oldOn = oldVnode.data.on || {}
   target = vnode.elm
-  updateListeners(on, oldOn, add, remove, vnode.context)
+  updateListeners(on, oldOn, add, remove, createOnceHandler, vnode.context)
   target = undefined
 }
 
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index 3973c41cb26..807ad5777c8 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -895,4 +895,31 @@ describe('Directive v-on', () => {
     }).$mount()
     expect(`v-on without argument expects an Object value`).toHaveBeenWarned()
   })
+
+  it('should correctly remove once listener', done => {
+    const vm = new Vue({
+      template: `
+        <div>
+          <span v-if="ok" @click.once="foo">
+            a
+          </span>
+          <span v-else a="a">
+            b
+          </span>
+        </div>
+      `,
+      data: {
+        ok: true
+      },
+      methods: {
+        foo: spy
+      }
+    }).$mount()
+
+    vm.ok = false
+    waitForUpdate(() => {
+      triggerEvent(vm.$el.childNodes[0], 'click')
+      expect(spy.calls.count()).toBe(0)
+    }).then(done)
+  })
 })

From e4b1b57fd7117a19cdb376dcb156606e0cc32a94 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 2 Dec 2018 12:31:16 -0500
Subject: [PATCH 600/911] fix(ssr): adjust call stack size defer threshold

fix #8545
---
 src/server/render-context.js | 91 ++++++++++++++++++------------------
 src/server/write.js          |  2 +-
 2 files changed, 46 insertions(+), 47 deletions(-)

diff --git a/src/server/render-context.js b/src/server/render-context.js
index b23cbd0fd64..3da91d0abca 100644
--- a/src/server/render-context.js
+++ b/src/server/render-context.js
@@ -66,55 +66,54 @@ export class RenderContext {
   }
 
   next () {
-    const lastState = this.renderStates[this.renderStates.length - 1]
-    if (isUndef(lastState)) {
-      return this.done()
-    }
-    /* eslint-disable no-case-declarations */
-    switch (lastState.type) {
-      case 'Element':
-      case 'Fragment':
-        const { children, total } = lastState
-        const rendered = lastState.rendered++
-        if (rendered < total) {
-          this.renderNode(children[rendered], false, this)
-        } else {
+    // eslint-disable-next-line
+    while (true) {
+      const lastState = this.renderStates[this.renderStates.length - 1]
+      if (isUndef(lastState)) {
+        return this.done()
+      }
+      /* eslint-disable no-case-declarations */
+      switch (lastState.type) {
+        case 'Element':
+        case 'Fragment':
+          const { children, total } = lastState
+          const rendered = lastState.rendered++
+          if (rendered < total) {
+            return this.renderNode(children[rendered], false, this)
+          } else {
+            this.renderStates.pop()
+            if (lastState.type === 'Element') {
+              return this.write(lastState.endTag, this.next)
+            }
+          }
+          break
+        case 'Component':
           this.renderStates.pop()
-          if (lastState.type === 'Element') {
-            this.write(lastState.endTag, this.next)
+          this.activeInstance = lastState.prevActive
+          break
+        case 'ComponentWithCache':
+          this.renderStates.pop()
+          const { buffer, bufferIndex, componentBuffer, key } = lastState
+          const result = {
+            html: buffer[bufferIndex],
+            components: componentBuffer[bufferIndex]
+          }
+          this.cache.set(key, result)
+          if (bufferIndex === 0) {
+            // this is a top-level cached component,
+            // exit caching mode.
+            this.write.caching = false
           } else {
-            this.next()
+            // parent component is also being cached,
+            // merge self into parent's result
+            buffer[bufferIndex - 1] += result.html
+            const prev = componentBuffer[bufferIndex - 1]
+            result.components.forEach(c => prev.add(c))
           }
-        }
-        break
-      case 'Component':
-        this.renderStates.pop()
-        this.activeInstance = lastState.prevActive
-        this.next()
-        break
-      case 'ComponentWithCache':
-        this.renderStates.pop()
-        const { buffer, bufferIndex, componentBuffer, key } = lastState
-        const result = {
-          html: buffer[bufferIndex],
-          components: componentBuffer[bufferIndex]
-        }
-        this.cache.set(key, result)
-        if (bufferIndex === 0) {
-          // this is a top-level cached component,
-          // exit caching mode.
-          this.write.caching = false
-        } else {
-          // parent component is also being cached,
-          // merge self into parent's result
-          buffer[bufferIndex - 1] += result.html
-          const prev = componentBuffer[bufferIndex - 1]
-          result.components.forEach(c => prev.add(c))
-        }
-        buffer.length = bufferIndex
-        componentBuffer.length = bufferIndex
-        this.next()
-        break
+          buffer.length = bufferIndex
+          componentBuffer.length = bufferIndex
+          break
+      }
     }
   }
 }
diff --git a/src/server/write.js b/src/server/write.js
index e642081852c..9d81d2a8e04 100644
--- a/src/server/write.js
+++ b/src/server/write.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-const MAX_STACK_DEPTH = 1000
+const MAX_STACK_DEPTH = 900
 const noop = _ => _
 
 const defer = typeof process !== 'undefined' && process.nextTick

From aca17b4064bf5017506d77e9f5bf286cfe926ae1 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Mon, 3 Dec 2018 05:00:06 +0800
Subject: [PATCH 601/911] ci: add regression test for popular libraries in
 Vue.js ecosystem (#8608)

---
 .circleci/config.yml | 49 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 064192b36d6..ab8973c4acf 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -62,6 +62,16 @@ jobs:
       - run: npm run test:ssr
       - run: npm run test:weex
 
+  trigger-regression-test:
+    <<: *defaults
+    steps:
+      - run:
+          command: |
+            curl --user ${CIRCLE_TOKEN}: \
+            --data build_parameters[CIRCLE_JOB]=update \
+            --data build_parameters[VUE_REVISION]=${CIRCLE_SHA1} \
+            https://circleci.com/api/v1.1/project/github/vuejs/regression-testing/tree/master
+
 workflows:
   version: 2
   install-and-parallel-test:
@@ -79,3 +89,42 @@ workflows:
       - test-ssr-weex:
           requires:
             - install
+      - trigger-regression-test:
+          filters:
+            branches:
+              only:
+                - regression-test
+          requires:
+            - test-cover
+            - lint-flow-types
+            - test-e2e
+            - test-ssr-weex
+  weekly_regression_test:
+    triggers:
+      - schedule:
+          # At 13:00 UTC (9:00 EDT) on every Monday
+          cron: "0 13 * * 1"
+          filters:
+            branches:
+              only:
+                dev
+    jobs:
+      - install
+      - test-cover:
+          requires:
+            - install
+      - lint-flow-types:
+          requires:
+            - install
+      - test-e2e:
+          requires:
+            - install
+      - test-ssr-weex:
+          requires:
+            - install
+      - trigger-regression-test:
+          requires:
+            - test-cover
+            - lint-flow-types
+            - test-e2e
+            - test-ssr-weex

From 307835284a326569ea12c4a22c7dcb8f36d2d8ca Mon Sep 17 00:00:00 2001
From: ggtmtmgg <xxx.tubasa0226@gmail.com>
Date: Mon, 3 Dec 2018 06:01:19 +0900
Subject: [PATCH 602/911] fix(ssr): resolve server directives the same as on
 client (#9129)

fix #8961
---
 src/server/render.js | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/server/render.js b/src/server/render.js
index 592a6175c5f..965b64febbb 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -3,6 +3,7 @@
 import { escape } from 'web/server/util'
 import { SSR_ATTR } from 'shared/constants'
 import { RenderContext } from './render-context'
+import { resolveAsset } from 'core/util/options'
 import { generateComponentTrace } from 'core/util/debug'
 import { ssrCompileToFunctions } from 'web/server/compiler'
 import { installSSRHelpers } from './optimizing-compiler/runtime-helpers'
@@ -324,11 +325,13 @@ function renderStartingTag (node: VNode, context) {
     if (dirs) {
       for (let i = 0; i < dirs.length; i++) {
         const name = dirs[i].name
-        const dirRenderer = directives[name]
-        if (dirRenderer && name !== 'show') {
-          // directives mutate the node's data
-          // which then gets rendered by modules
-          dirRenderer(node, dirs[i])
+        if (name !== 'show') {
+          const dirRenderer = resolveAsset(context, 'directives', name, true)
+          if (dirRenderer) {
+            // directives mutate the node's data
+            // which then gets rendered by modules
+            dirRenderer(node, dirs[i])
+          }
         }
       }
     }

From fe194dd5d812249bed5c15ad1d16551599b029dd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 2 Dec 2018 16:12:52 -0500
Subject: [PATCH 603/911] build: build v2.5.18-beta.0

---
 dist/vue.common.js                            |   889 +-
 dist/vue.esm.js                               |   889 +-
 dist/vue.js                                   | 19573 ++++++++--------
 dist/vue.min.js                               |     4 +-
 dist/vue.runtime.common.js                    |   757 +-
 dist/vue.runtime.esm.js                       |   757 +-
 dist/vue.runtime.js                           | 13947 +++++------
 dist/vue.runtime.min.js                       |     4 +-
 packages/vue-server-renderer/basic.js         | 14621 ++++++------
 packages/vue-server-renderer/build.js         |   793 +-
 packages/vue-server-renderer/client-plugin.js |    28 +-
 packages/vue-server-renderer/package.json     |     2 +-
 packages/vue-server-renderer/server-plugin.js |    14 +-
 packages/vue-template-compiler/browser.js     |  9574 ++++----
 packages/vue-template-compiler/build.js       |   426 +-
 packages/vue-template-compiler/package.json   |     2 +-
 16 files changed, 31255 insertions(+), 31025 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 0b8d12d2e5e..c0203d1b635 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -9,8 +9,8 @@
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -28,7 +28,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -50,7 +50,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -90,7 +90,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -122,12 +122,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -139,7 +139,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -181,11 +181,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -247,10 +247,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -259,13 +261,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -289,6 +293,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -310,6 +316,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -354,6 +365,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -436,11 +449,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -525,7 +544,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -552,7 +571,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -666,7 +685,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -695,6 +713,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if (process.env.NODE_ENV !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -706,13 +730,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -783,7 +808,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -875,10 +903,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -886,14 +915,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -909,17 +938,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -960,7 +989,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1008,6 +1037,8 @@ function defineReactive (
       if (process.env.NODE_ENV !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1051,7 +1082,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1138,7 +1169,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1461,15 +1496,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -1522,6 +1564,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -1558,7 +1602,7 @@ function validateProp (
   if (
     process.env.NODE_ENV !== 'production' &&
     // skip validation for weex recycle-list child component props
-    !(false && isObject(value) && ('@binding' in value))
+    !(false)
   ) {
     assertProp(prop, key, value, vm, absent);
   }
@@ -1631,11 +1675,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -1702,6 +1745,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -1748,7 +1834,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -1826,9 +1911,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -1909,6 +1996,16 @@ if (process.env.NODE_ENV !== 'production') {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -1930,9 +2027,11 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -1941,7 +2040,8 @@ if (process.env.NODE_ENV !== 'production') {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -2039,14 +2139,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2056,7 +2156,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -2311,10 +2414,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -2323,7 +2430,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2334,7 +2441,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2361,7 +2468,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -2424,37 +2531,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -2479,8 +2590,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -2490,7 +2599,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -2931,7 +3040,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -3020,7 +3128,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -3067,6 +3175,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if (process.env.NODE_ENV !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -3074,6 +3187,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -3097,16 +3212,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.computed = !!options.computed;
+    this.lazy = !!options.lazy;
     this.sync = !!options.sync;
     this.before = options.before;
   } else {
-    this.deep = this.user = this.computed = this.sync = false;
+    this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.computed; // for computed watchers
+  this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3120,7 +3235,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       process.env.NODE_ENV !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -3129,12 +3244,9 @@ var Watcher = function Watcher (
       );
     }
   }
-  if (this.computed) {
-    this.value = undefined;
-    this.dep = new Dep();
-  } else {
-    this.value = this.get();
-  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
 };
 
 /**
@@ -3182,13 +3294,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -3206,27 +3316,9 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
-    var this$1 = this;
-
   /* istanbul ignore else */
-  if (this.computed) {
-    // A computed property watcher has two modes: lazy and activated.
-    // It initializes as lazy by default, and only becomes activated when
-    // it is depended on by at least one subscriber, which is typically
-    // another computed property or a component's render function.
-    if (this.dep.subs.length === 0) {
-      // In lazy mode, we don't want to perform computations until necessary,
-      // so we simply mark the watcher as dirty. The actual computation is
-      // performed just-in-time in this.evaluate() when the computed property
-      // is accessed.
-      this.dirty = true;
-    } else {
-      // In activated mode, we want to proactively perform the computation
-      // but only notify our subscribers when the value has indeed changed.
-      this.getAndInvoke(function () {
-        this$1.dep.notify();
-      });
-    }
+  if (this.lazy) {
+    this.dirty = true;
   } else if (this.sync) {
     this.run();
   } else {
@@ -3240,54 +3332,47 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    this.getAndInvoke(this.cb);
-  }
-};
-
-Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
-  var value = this.get();
-  if (
-    value !== this.value ||
-    // Deep watchers and watchers on Object/Arrays should fire even
-    // when the value is the same, because the value may
-    // have mutated.
-    isObject(value) ||
-    this.deep
-  ) {
-    // set new value
-    var oldValue = this.value;
-    this.value = value;
-    this.dirty = false;
-    if (this.user) {
-      try {
-        cb.call(this.vm, value, oldValue);
-      } catch (e) {
-        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
       }
-    } else {
-      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate and return the value of the watcher.
- * This only gets called for computed property watchers.
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  if (this.dirty) {
-    this.value = this.get();
-    this.dirty = false;
-  }
-  return this.value
+  this.value = this.get();
+  this.dirty = false;
 };
 
 /**
- * Depend on this watcher. Only for computed property watchers.
+ * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-  if (this.dep && Dep.target) {
-    this.dep.depend();
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
   }
 };
 
@@ -3295,8 +3380,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -3306,7 +3389,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -3371,8 +3454,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -3383,7 +3466,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3452,7 +3535,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { computed: true };
+var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3504,17 +3587,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if (process.env.NODE_ENV !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -3532,19 +3613,30 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      watcher.depend();
-      return watcher.evaluate()
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
     }
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -3562,7 +3654,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3604,7 +3696,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -3634,7 +3726,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -3660,7 +3756,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3669,7 +3765,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -3773,19 +3869,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -3873,12 +3957,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -4084,24 +4169,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (process.env.NODE_ENV !== 'production') {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -4116,21 +4204,8 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
@@ -4298,10 +4373,6 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
@@ -4349,12 +4420,21 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -4442,7 +4522,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -4524,15 +4604,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4550,14 +4630,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (process.env.NODE_ENV !== 'production') {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -4574,15 +4646,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -4917,6 +4985,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4980,10 +5050,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -5043,11 +5111,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -5071,7 +5139,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -5113,7 +5181,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17-beta.0';
+Vue.version = '2.5.18-beta.0';
 
 /*  */
 
@@ -5391,20 +5459,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5422,7 +5489,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -5467,6 +5534,12 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
+function childrenIgnored (vnode) {
+  return vnode && vnode.data && vnode.data.domProps && (
+    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+  )
+}
+
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5474,6 +5547,7 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
+        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
@@ -5523,13 +5597,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -5690,7 +5764,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -5845,20 +5919,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -5872,7 +5946,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -5916,11 +5990,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -5961,6 +6047,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -6119,7 +6208,7 @@ function createPatchFunction (backend) {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -6215,7 +6304,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6326,7 +6415,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -6410,7 +6499,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -6428,7 +6517,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -6466,7 +6555,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -6630,6 +6719,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -6645,18 +6746,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -6792,12 +6881,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -7078,7 +7162,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -7091,12 +7175,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -7127,14 +7209,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -7228,7 +7310,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -7389,10 +7471,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -7406,7 +7490,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -7431,7 +7515,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -7455,20 +7539,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -7571,11 +7655,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -7629,8 +7714,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -7862,7 +7951,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -7951,7 +8040,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -7960,7 +8049,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -8171,18 +8260,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -8248,6 +8334,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -8262,7 +8352,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -8327,7 +8417,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -8365,21 +8455,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -8475,6 +8554,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -8512,7 +8594,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -8545,7 +8627,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -8606,7 +8688,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -8692,7 +8774,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -8736,7 +8818,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -8748,7 +8830,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -8777,13 +8859,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -8798,11 +8873,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -8883,7 +8953,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -9000,12 +9070,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -9031,12 +9095,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -9085,7 +9146,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -9270,7 +9331,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -9394,8 +9456,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (process.env.NODE_ENV !== 'production') {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transtion-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -9433,7 +9507,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -9586,6 +9660,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          process.env.NODE_ENV !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -9734,16 +9816,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -9810,15 +9882,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -9840,7 +9912,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -10037,8 +10109,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -10066,7 +10137,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -10103,7 +10173,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10152,10 +10221,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -10163,9 +10236,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -10183,6 +10257,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -10191,7 +10269,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -10201,7 +10279,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -10217,7 +10298,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -10358,10 +10447,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -10453,7 +10542,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -10491,13 +10580,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      // because el may be a functional component and return an Array instead of a single root.
+      // In this case, just a simple normalization is needed
+      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -10535,7 +10627,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -10708,6 +10800,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -10879,6 +10973,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 0135a93ef54..a17e8548470 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -7,8 +7,8 @@
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -26,7 +26,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -48,7 +48,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -88,7 +88,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -120,12 +120,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -137,7 +137,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -179,11 +179,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -245,10 +245,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -257,13 +259,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -287,6 +291,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -308,6 +314,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -352,6 +363,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -434,11 +447,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -523,7 +542,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -550,7 +569,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -664,7 +683,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -693,6 +711,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if (process.env.NODE_ENV !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -704,13 +728,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -781,7 +806,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -873,10 +901,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -884,14 +913,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -907,17 +936,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -958,7 +987,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1006,6 +1035,8 @@ function defineReactive (
       if (process.env.NODE_ENV !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1049,7 +1080,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1136,7 +1167,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1459,15 +1494,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -1520,6 +1562,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -1556,7 +1600,7 @@ function validateProp (
   if (
     process.env.NODE_ENV !== 'production' &&
     // skip validation for weex recycle-list child component props
-    !(false && isObject(value) && ('@binding' in value))
+    !(false)
   ) {
     assertProp(prop, key, value, vm, absent);
   }
@@ -1629,11 +1673,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -1700,6 +1743,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -1746,7 +1832,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -1824,9 +1909,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -1907,6 +1994,16 @@ if (process.env.NODE_ENV !== 'production') {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -1928,9 +2025,11 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -1939,7 +2038,8 @@ if (process.env.NODE_ENV !== 'production') {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -2037,14 +2137,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2054,7 +2154,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -2309,10 +2412,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -2321,7 +2428,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2332,7 +2439,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2359,7 +2466,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -2422,37 +2529,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -2477,8 +2588,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -2488,7 +2597,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -2929,7 +3038,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -3018,7 +3126,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -3065,6 +3173,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if (process.env.NODE_ENV !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -3072,6 +3185,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -3095,16 +3210,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.computed = !!options.computed;
+    this.lazy = !!options.lazy;
     this.sync = !!options.sync;
     this.before = options.before;
   } else {
-    this.deep = this.user = this.computed = this.sync = false;
+    this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.computed; // for computed watchers
+  this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3118,7 +3233,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       process.env.NODE_ENV !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -3127,12 +3242,9 @@ var Watcher = function Watcher (
       );
     }
   }
-  if (this.computed) {
-    this.value = undefined;
-    this.dep = new Dep();
-  } else {
-    this.value = this.get();
-  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
 };
 
 /**
@@ -3180,13 +3292,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -3204,27 +3314,9 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
-    var this$1 = this;
-
   /* istanbul ignore else */
-  if (this.computed) {
-    // A computed property watcher has two modes: lazy and activated.
-    // It initializes as lazy by default, and only becomes activated when
-    // it is depended on by at least one subscriber, which is typically
-    // another computed property or a component's render function.
-    if (this.dep.subs.length === 0) {
-      // In lazy mode, we don't want to perform computations until necessary,
-      // so we simply mark the watcher as dirty. The actual computation is
-      // performed just-in-time in this.evaluate() when the computed property
-      // is accessed.
-      this.dirty = true;
-    } else {
-      // In activated mode, we want to proactively perform the computation
-      // but only notify our subscribers when the value has indeed changed.
-      this.getAndInvoke(function () {
-        this$1.dep.notify();
-      });
-    }
+  if (this.lazy) {
+    this.dirty = true;
   } else if (this.sync) {
     this.run();
   } else {
@@ -3238,54 +3330,47 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    this.getAndInvoke(this.cb);
-  }
-};
-
-Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
-  var value = this.get();
-  if (
-    value !== this.value ||
-    // Deep watchers and watchers on Object/Arrays should fire even
-    // when the value is the same, because the value may
-    // have mutated.
-    isObject(value) ||
-    this.deep
-  ) {
-    // set new value
-    var oldValue = this.value;
-    this.value = value;
-    this.dirty = false;
-    if (this.user) {
-      try {
-        cb.call(this.vm, value, oldValue);
-      } catch (e) {
-        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
       }
-    } else {
-      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate and return the value of the watcher.
- * This only gets called for computed property watchers.
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  if (this.dirty) {
-    this.value = this.get();
-    this.dirty = false;
-  }
-  return this.value
+  this.value = this.get();
+  this.dirty = false;
 };
 
 /**
- * Depend on this watcher. Only for computed property watchers.
+ * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-  if (this.dep && Dep.target) {
-    this.dep.depend();
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
   }
 };
 
@@ -3293,8 +3378,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -3304,7 +3387,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -3369,8 +3452,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -3381,7 +3464,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3450,7 +3533,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { computed: true };
+var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3502,17 +3585,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if (process.env.NODE_ENV !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -3530,19 +3611,30 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      watcher.depend();
-      return watcher.evaluate()
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
     }
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -3560,7 +3652,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3602,7 +3694,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -3632,7 +3724,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -3658,7 +3754,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3667,7 +3763,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -3771,19 +3867,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -3871,12 +3955,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -4082,24 +4167,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (process.env.NODE_ENV !== 'production') {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -4114,21 +4202,8 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
@@ -4296,10 +4371,6 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
@@ -4347,12 +4418,21 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -4440,7 +4520,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -4522,15 +4602,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4548,14 +4628,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (process.env.NODE_ENV !== 'production') {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -4572,15 +4644,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -4915,6 +4983,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4978,10 +5048,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -5041,11 +5109,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -5069,7 +5137,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -5111,7 +5179,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17-beta.0';
+Vue.version = '2.5.18-beta.0';
 
 /*  */
 
@@ -5389,20 +5457,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5420,7 +5487,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -5465,6 +5532,12 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
+function childrenIgnored (vnode) {
+  return vnode && vnode.data && vnode.data.domProps && (
+    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+  )
+}
+
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5472,6 +5545,7 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
+        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
@@ -5521,13 +5595,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -5688,7 +5762,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -5843,20 +5917,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -5870,7 +5944,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -5914,11 +5988,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -5959,6 +6045,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -6117,7 +6206,7 @@ function createPatchFunction (backend) {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -6213,7 +6302,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6324,7 +6413,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -6408,7 +6497,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -6426,7 +6515,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -6464,7 +6553,7 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
@@ -6628,6 +6717,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -6643,18 +6744,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -6790,12 +6879,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index$1, expressionPos, expressionEndPos;
 
 
 
@@ -7076,7 +7160,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -7089,12 +7173,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -7125,14 +7207,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -7226,7 +7308,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -7387,10 +7469,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -7404,7 +7488,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -7429,7 +7513,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -7453,20 +7537,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -7569,11 +7653,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -7627,8 +7712,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -7860,7 +7949,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -7949,7 +8038,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -7958,7 +8047,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -8169,18 +8258,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -8246,6 +8332,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -8260,7 +8350,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -8325,7 +8415,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -8363,21 +8453,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -8473,6 +8552,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -8510,7 +8592,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -8543,7 +8625,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
@@ -8604,7 +8686,7 @@ if (inBrowser) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -8690,7 +8772,7 @@ var klass$1 = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -8734,7 +8816,7 @@ var style$1 = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -8746,7 +8828,7 @@ var he = {
     decoder.innerHTML = html;
     return decoder.textContent
   }
-}
+};
 
 /*  */
 
@@ -8775,13 +8857,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -8796,11 +8871,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -8881,7 +8951,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -8998,12 +9068,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -9029,12 +9093,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -9083,7 +9144,7 @@ function parseHTML (html, options) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -9268,7 +9329,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -9392,8 +9454,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+    if (process.env.NODE_ENV !== 'production') {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transtion-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -9431,7 +9505,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -9584,6 +9658,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          process.env.NODE_ENV !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -9732,16 +9814,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -9808,15 +9880,15 @@ function cloneASTElement (el) {
   return createASTElement(el.tag, el.attrsList.slice(), el.parent)
 }
 
-var model$2 = {
+var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass$1,
   style$1,
-  model$2
-]
+  model$1
+];
 
 /*  */
 
@@ -9838,7 +9910,7 @@ var directives$1 = {
   model: model,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -10035,8 +10107,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -10064,7 +10135,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -10101,7 +10171,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10150,10 +10219,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -10161,9 +10234,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -10181,6 +10255,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -10189,7 +10267,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -10199,7 +10277,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -10215,7 +10296,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -10356,10 +10445,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -10451,7 +10540,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -10489,13 +10578,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      // because el may be a functional component and return an Array instead of a single root.
+      // In this case, just a simple normalization is needed
+      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -10533,7 +10625,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -10706,6 +10798,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -10877,6 +10971,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
 var compileToFunctions = ref$1.compileToFunctions;
 
 /*  */
diff --git a/dist/vue.js b/dist/vue.js
index 74a71bb673a..3047cc4396e 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,10978 +1,11057 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-	typeof define === 'function' && define.amd ? define(factory) :
-	(global.Vue = factory());
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global.Vue = factory());
 }(this, (function () { 'use strict';
 
-/*  */
+  /*  */
 
-var emptyObject = Object.freeze({});
+  var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value e.g. [object Object]
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
+  // These helpers produce better VM code in JS engines due to their
+  // explicitness and function inlining.
+  function isUndef (v) {
+    return v === undefined || v === null
+  }
 
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert a input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
+  function isDef (v) {
+    return v !== undefined && v !== null
+  }
 
-/**
- * Check if a attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+  function isTrue (v) {
+    return v === true
+  }
 
-/**
- * Remove an item from an array
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
+  function isFalse (v) {
+    return v === false
   }
-}
 
-/**
- * Check whether the object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
+  /**
+   * Check if value is primitive.
+   */
+  function isPrimitive (value) {
+    return (
+      typeof value === 'string' ||
+      typeof value === 'number' ||
+      // $flow-disable-line
+      typeof value === 'symbol' ||
+      typeof value === 'boolean'
+    )
+  }
 
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
+  /**
+   * Quick object check - this is primarily used to tell
+   * Objects from primitive values when we know the value
+   * is a JSON-compliant type.
+   */
+  function isObject (obj) {
+    return obj !== null && typeof obj === 'object'
+  }
 
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
+  /**
+   * Get the raw type string of a value, e.g., [object Object].
+   */
+  var _toString = Object.prototype.toString;
 
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
- */
+  function toRawType (value) {
+    return _toString.call(value).slice(8, -1)
+  }
 
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
+  /**
+   * Strict object type check. Only returns true
+   * for plain JavaScript objects.
+   */
+  function isPlainObject (obj) {
+    return _toString.call(obj) === '[object Object]'
   }
 
-  boundFn._length = fn.length;
-  return boundFn
-}
+  function isRegExp (v) {
+    return _toString.call(v) === '[object RegExp]'
+  }
 
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
+  /**
+   * Check if val is a valid array index.
+   */
+  function isValidArrayIndex (val) {
+    var n = parseFloat(String(val));
+    return n >= 0 && Math.floor(n) === n && isFinite(val)
+  }
 
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
+  /**
+   * Convert a value to a string that is actually rendered.
+   */
+  function toString (val) {
+    return val == null
+      ? ''
+      : typeof val === 'object'
+        ? JSON.stringify(val, null, 2)
+        : String(val)
+  }
 
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
+  /**
+   * Convert an input value to a number for persistence.
+   * If the conversion fails, return original string.
+   */
+  function toNumber (val) {
+    var n = parseFloat(val);
+    return isNaN(n) ? val : n
   }
-  return to
-}
 
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
+  /**
+   * Make a map and return a function for checking if a key
+   * is in that map.
+   */
+  function makeMap (
+    str,
+    expectsLowerCase
+  ) {
+    var map = Object.create(null);
+    var list = str.split(',');
+    for (var i = 0; i < list.length; i++) {
+      map[list[i]] = true;
     }
+    return expectsLowerCase
+      ? function (val) { return map[val.toLowerCase()]; }
+      : function (val) { return map[val]; }
   }
-  return res
-}
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
- */
-function noop (a, b, c) {}
 
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
+  /**
+   * Check if a tag is a built-in tag.
+   */
+  var isBuiltInTag = makeMap('slot,component', true);
 
-/**
- * Return same value
- */
-var identity = function (_) { return _; };
+  /**
+   * Check if an attribute is a reserved attribute.
+   */
+  var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
-/**
- * Generate a static keys string from compiler modules.
- */
-function genStaticKeys (modules) {
-  return modules.reduce(function (keys, m) {
-    return keys.concat(m.staticKeys || [])
-  }, []).join(',')
-}
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
+  /**
+   * Remove an item from an array.
+   */
+  function remove (arr, item) {
+    if (arr.length) {
+      var index = arr.indexOf(item);
+      if (index > -1) {
+        return arr.splice(index, 1)
       }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
     }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
   }
-}
 
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-var config = ({
   /**
-   * Option merge strategies (used in core/util/options)
+   * Check whether an object has the property.
    */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
+  function hasOwn (obj, key) {
+    return hasOwnProperty.call(obj, key)
+  }
 
   /**
-   * Whether to suppress warnings.
+   * Create a cached version of a pure function.
    */
-  silent: false,
+  function cached (fn) {
+    var cache = Object.create(null);
+    return (function cachedFn (str) {
+      var hit = cache[str];
+      return hit || (cache[str] = fn(str))
+    })
+  }
 
   /**
-   * Show production mode tip message on boot?
+   * Camelize a hyphen-delimited string.
    */
-  productionTip: "development" !== 'production',
+  var camelizeRE = /-(\w)/g;
+  var camelize = cached(function (str) {
+    return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+  });
 
   /**
-   * Whether to enable devtools
+   * Capitalize a string.
    */
-  devtools: "development" !== 'production',
+  var capitalize = cached(function (str) {
+    return str.charAt(0).toUpperCase() + str.slice(1)
+  });
 
   /**
-   * Whether to record perf
+   * Hyphenate a camelCase string.
    */
-  performance: false,
+  var hyphenateRE = /\B([A-Z])/g;
+  var hyphenate = cached(function (str) {
+    return str.replace(hyphenateRE, '-$1').toLowerCase()
+  });
 
   /**
-   * Error handler for watcher errors
+   * Simple bind polyfill for environments that do not support it,
+   * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+   * since native bind is now performant enough in most browsers.
+   * But removing it would mean breaking code that was able to run in
+   * PhantomJS 1.x, so this must be kept for backward compatibility.
    */
-  errorHandler: null,
+
+  /* istanbul ignore next */
+  function polyfillBind (fn, ctx) {
+    function boundFn (a) {
+      var l = arguments.length;
+      return l
+        ? l > 1
+          ? fn.apply(ctx, arguments)
+          : fn.call(ctx, a)
+        : fn.call(ctx)
+    }
+
+    boundFn._length = fn.length;
+    return boundFn
+  }
+
+  function nativeBind (fn, ctx) {
+    return fn.bind(ctx)
+  }
+
+  var bind = Function.prototype.bind
+    ? nativeBind
+    : polyfillBind;
 
   /**
-   * Warn handler for watcher warns
+   * Convert an Array-like object to a real Array.
    */
-  warnHandler: null,
+  function toArray (list, start) {
+    start = start || 0;
+    var i = list.length - start;
+    var ret = new Array(i);
+    while (i--) {
+      ret[i] = list[i + start];
+    }
+    return ret
+  }
 
   /**
-   * Ignore certain custom elements
+   * Mix properties into target object.
    */
-  ignoredElements: [],
+  function extend (to, _from) {
+    for (var key in _from) {
+      to[key] = _from[key];
+    }
+    return to
+  }
 
   /**
-   * Custom user key aliases for v-on
+   * Merge an Array of Objects into a single Object.
    */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
+  function toObject (arr) {
+    var res = {};
+    for (var i = 0; i < arr.length; i++) {
+      if (arr[i]) {
+        extend(res, arr[i]);
+      }
+    }
+    return res
+  }
+
+  /* eslint-disable no-unused-vars */
 
   /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
+   * Perform no operation.
+   * Stubbing args to make Flow happy without leaving useless transpiled code
+   * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
    */
-  isReservedTag: no,
+  function noop (a, b, c) {}
 
   /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
+   * Always return false.
    */
-  isReservedAttr: no,
+  var no = function (a, b, c) { return false; };
+
+  /* eslint-enable no-unused-vars */
 
   /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
+   * Return the same value.
    */
-  isUnknownElement: no,
+  var identity = function (_) { return _; };
 
   /**
-   * Get the namespace of an element
+   * Generate a string containing static keys from compiler modules.
    */
-  getTagNamespace: noop,
+  function genStaticKeys (modules) {
+    return modules.reduce(function (keys, m) {
+      return keys.concat(m.staticKeys || [])
+    }, []).join(',')
+  }
 
   /**
-   * Parse the real tag name for the specific platform.
+   * Check if two values are loosely equal - that is,
+   * if they are plain objects, do they have the same shape?
    */
-  parsePlatformTagName: identity,
+  function looseEqual (a, b) {
+    if (a === b) { return true }
+    var isObjectA = isObject(a);
+    var isObjectB = isObject(b);
+    if (isObjectA && isObjectB) {
+      try {
+        var isArrayA = Array.isArray(a);
+        var isArrayB = Array.isArray(b);
+        if (isArrayA && isArrayB) {
+          return a.length === b.length && a.every(function (e, i) {
+            return looseEqual(e, b[i])
+          })
+        } else if (a instanceof Date && b instanceof Date) {
+          return a.getTime() === b.getTime()
+        } else if (!isArrayA && !isArrayB) {
+          var keysA = Object.keys(a);
+          var keysB = Object.keys(b);
+          return keysA.length === keysB.length && keysA.every(function (key) {
+            return looseEqual(a[key], b[key])
+          })
+        } else {
+          /* istanbul ignore next */
+          return false
+        }
+      } catch (e) {
+        /* istanbul ignore next */
+        return false
+      }
+    } else if (!isObjectA && !isObjectB) {
+      return String(a) === String(b)
+    } else {
+      return false
+    }
+  }
 
   /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
+   * Return the first index at which a loosely equal value can be
+   * found in the array (if value is a plain object, the array must
+   * contain an object of the same shape), or -1 if it is not present.
    */
-  mustUseProp: no,
+  function looseIndexOf (arr, val) {
+    for (var i = 0; i < arr.length; i++) {
+      if (looseEqual(arr[i], val)) { return i }
+    }
+    return -1
+  }
 
   /**
-   * Exposed for legacy reasons
+   * Ensure a function is called only once.
    */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-})
+  function once (fn) {
+    var called = false;
+    return function () {
+      if (!called) {
+        called = true;
+        fn.apply(this, arguments);
+      }
+    }
+  }
 
-/*  */
+  var SSR_ATTR = 'data-server-rendered';
 
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
+  var ASSET_TYPES = [
+    'component',
+    'directive',
+    'filter'
+  ];
 
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
+  var LIFECYCLE_HOOKS = [
+    'beforeCreate',
+    'created',
+    'beforeMount',
+    'mounted',
+    'beforeUpdate',
+    'updated',
+    'beforeDestroy',
+    'destroyed',
+    'activated',
+    'deactivated',
+    'errorCaptured'
+  ];
+
+  /*  */
+
+
+
+  var config = ({
+    /**
+     * Option merge strategies (used in core/util/options)
+     */
+    // $flow-disable-line
+    optionMergeStrategies: Object.create(null),
+
+    /**
+     * Whether to suppress warnings.
+     */
+    silent: false,
+
+    /**
+     * Show production mode tip message on boot?
+     */
+    productionTip: "development" !== 'production',
+
+    /**
+     * Whether to enable devtools
+     */
+    devtools: "development" !== 'production',
+
+    /**
+     * Whether to record perf
+     */
+    performance: false,
+
+    /**
+     * Error handler for watcher errors
+     */
+    errorHandler: null,
+
+    /**
+     * Warn handler for watcher warns
+     */
+    warnHandler: null,
+
+    /**
+     * Ignore certain custom elements
+     */
+    ignoredElements: [],
+
+    /**
+     * Custom user key aliases for v-on
+     */
+    // $flow-disable-line
+    keyCodes: Object.create(null),
+
+    /**
+     * Check if a tag is reserved so that it cannot be registered as a
+     * component. This is platform-dependent and may be overwritten.
+     */
+    isReservedTag: no,
+
+    /**
+     * Check if an attribute is reserved so that it cannot be used as a component
+     * prop. This is platform-dependent and may be overwritten.
+     */
+    isReservedAttr: no,
+
+    /**
+     * Check if a tag is an unknown element.
+     * Platform-dependent.
+     */
+    isUnknownElement: no,
+
+    /**
+     * Get the namespace of an element
+     */
+    getTagNamespace: noop,
+
+    /**
+     * Parse the real tag name for the specific platform.
+     */
+    parsePlatformTagName: identity,
+
+    /**
+     * Check if an attribute must be bound using property, e.g. value
+     * Platform-dependent.
+     */
+    mustUseProp: no,
+
+    /**
+     * Perform updates asynchronously. Intended to be used by Vue Test Utils
+     * This will significantly reduce performance if set to false.
+     */
+    async: true,
+
+    /**
+     * Exposed for legacy reasons
+     */
+    _lifecycleHooks: LIFECYCLE_HOOKS
   });
-}
 
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
+  /*  */
+
+  /**
+   * Check if a string starts with $ or _
+   */
+  function isReserved (str) {
+    var c = (str + '').charCodeAt(0);
+    return c === 0x24 || c === 0x5F
+  }
+
+  /**
+   * Define a property.
+   */
+  function def (obj, key, val, enumerable) {
+    Object.defineProperty(obj, key, {
+      value: val,
+      enumerable: !!enumerable,
+      writable: true,
+      configurable: true
+    });
+  }
+
+  /**
+   * Parse simple path.
+   */
+  var bailRE = /[^\w.$]/;
+  function parsePath (path) {
+    if (bailRE.test(path)) {
+      return
+    }
+    var segments = path.split('.');
+    return function (obj) {
+      for (var i = 0; i < segments.length; i++) {
+        if (!obj) { return }
+        obj = obj[segments[i]];
+      }
+      return obj
     }
   }
-  return _isServer
-};
 
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+  /*  */
+
+  // can we use __proto__?
+  var hasProto = '__proto__' in {};
 
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
+  // Browser environment sniffing
+  var inBrowser = typeof window !== 'undefined';
+  var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+  var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+  var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+  var isIE = UA && /msie|trident/.test(UA);
+  var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+  var isEdge = UA && UA.indexOf('edge/') > 0;
+  var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+  var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+  var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+  // Firefox has a "watch" function on Object.prototype...
+  var nativeWatch = ({}).watch;
 
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
+  var supportsPassive = false;
+  if (inBrowser) {
+    try {
+      var opts = {};
+      Object.defineProperty(opts, 'passive', ({
+        get: function get () {
+          /* istanbul ignore next */
+          supportsPassive = true;
+        }
+      })); // https://github.com/facebook/flow/issues/285
+      window.addEventListener('test-passive', null, opts);
+    } catch (e) {}
+  }
+
+  // this needs to be lazy-evaled because vue may be required before
+  // vue-server-renderer can set VUE_ENV
+  var _isServer;
+  var isServerRendering = function () {
+    if (_isServer === undefined) {
+      /* istanbul ignore if */
+      if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+        // detect presence of vue-server-renderer and avoid
+        // Webpack shimming the process
+        _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+      } else {
+        _isServer = false;
+      }
     }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
+    return _isServer
+  };
 
-    return Set;
-  }());
-}
+  // detect devtools
+  var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
 
-/*  */
+  /* istanbul ignore next */
+  function isNative (Ctor) {
+    return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+  }
 
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
+  var hasSymbol =
+    typeof Symbol !== 'undefined' && isNative(Symbol) &&
+    typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
 
-{
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
+  var _Set;
+  /* istanbul ignore if */ // $flow-disable-line
+  if (typeof Set !== 'undefined' && isNative(Set)) {
+    // use native Set when available.
+    _Set = Set;
+  } else {
+    // a non-standard Set polyfill that only works with primitive keys.
+    _Set = /*@__PURE__*/(function () {
+      function Set () {
+        this.set = Object.create(null);
+      }
+      Set.prototype.has = function has (key) {
+        return this.set[key] === true
+      };
+      Set.prototype.add = function add (key) {
+        this.set[key] = true;
+      };
+      Set.prototype.clear = function clear () {
+        this.set = Object.create(null);
+      };
 
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
+      return Set;
+    }());
+  }
 
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
+  /*  */
 
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
+  var warn = noop;
+  var tip = noop;
+  var generateComponentTrace = (noop); // work around flow check
+  var formatComponentName = (noop);
 
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
+  {
+    var hasConsole = typeof console !== 'undefined';
+    var classifyRE = /(?:^|[-_])(\w)/g;
+    var classify = function (str) { return str
+      .replace(classifyRE, function (c) { return c.toUpperCase(); })
+      .replace(/[-_]/g, ''); };
 
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
+    warn = function (msg, vm) {
+      var trace = vm ? generateComponentTrace(vm) : '';
 
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
+      if (config.warnHandler) {
+        config.warnHandler.call(null, msg, vm, trace);
+      } else if (hasConsole && (!config.silent)) {
+        console.error(("[Vue warn]: " + msg + trace));
+      }
+    };
 
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
+    tip = function (msg, vm) {
+      if (hasConsole && (!config.silent)) {
+        console.warn("[Vue tip]: " + msg + (
+          vm ? generateComponentTrace(vm) : ''
+        ));
       }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
+    };
 
-/*  */
+    formatComponentName = function (vm, includeFile) {
+      if (vm.$root === vm) {
+        return '<Root>'
+      }
+      var options = typeof vm === 'function' && vm.cid != null
+        ? vm.options
+        : vm._isVue
+          ? vm.$options || vm.constructor.options
+          : vm || {};
+      var name = options.name || options._componentTag;
+      var file = options.__file;
+      if (!name && file) {
+        var match = file.match(/([^/\\]+)\.vue$/);
+        name = match && match[1];
+      }
+
+      return (
+        (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+        (file && includeFile !== false ? (" at " + file) : '')
+      )
+    };
 
+    var repeat = function (str, n) {
+      var res = '';
+      while (n) {
+        if (n % 2 === 1) { res += str; }
+        if (n > 1) { str += str; }
+        n >>= 1;
+      }
+      return res
+    };
 
-var uid = 0;
+    generateComponentTrace = function (vm) {
+      if (vm._isVue && vm.$parent) {
+        var tree = [];
+        var currentRecursiveSequence = 0;
+        while (vm) {
+          if (tree.length > 0) {
+            var last = tree[tree.length - 1];
+            if (last.constructor === vm.constructor) {
+              currentRecursiveSequence++;
+              vm = vm.$parent;
+              continue
+            } else if (currentRecursiveSequence > 0) {
+              tree[tree.length - 1] = [last, currentRecursiveSequence];
+              currentRecursiveSequence = 0;
+            }
+          }
+          tree.push(vm);
+          vm = vm.$parent;
+        }
+        return '\n\nfound in\n\n' + tree
+          .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+              ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+              : formatComponentName(vm))); })
+          .join('\n')
+      } else {
+        return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+      }
+    };
+  }
 
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
+  /*  */
 
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
+  var uid = 0;
 
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
+  /**
+   * A dep is an observable that can have multiple
+   * directives subscribing to it.
+   */
+  var Dep = function Dep () {
+    this.id = uid++;
+    this.subs = [];
+  };
 
-/*  */
+  Dep.prototype.addSub = function addSub (sub) {
+    this.subs.push(sub);
+  };
 
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+  Dep.prototype.removeSub = function removeSub (sub) {
+    remove(this.subs, sub);
+  };
 
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
+  Dep.prototype.depend = function depend () {
+    if (Dep.target) {
+      Dep.target.addDep(this);
+    }
+  };
 
-function toggleObserving (value) {
-  shouldObserve = value;
-}
+  Dep.prototype.notify = function notify () {
+    // stabilize the subscriber list first
+    var subs = this.subs.slice();
+    if (!config.async) {
+      // subs aren't sorted in scheduler if not running async
+      // we need to sort them now to make sure they fire in correct
+      // order
+      subs.sort(function (a, b) { return a.id - b.id; });
+    }
+    for (var i = 0, l = subs.length; i < l; i++) {
+      subs[i].update();
+    }
+  };
 
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
+  // the current target watcher being evaluated.
+  // this is globally unique because there could be only one
+  // watcher being evaluated at any time.
+  Dep.target = null;
+  var targetStack = [];
 
-/**
- * Walk through each property and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+  function pushTarget (target) {
+    targetStack.push(target);
+    Dep.target = target;
   }
-};
 
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
+  function popTarget () {
+    targetStack.pop();
+    Dep.target = targetStack[targetStack.length - 1];
   }
-};
 
-// helpers
+  /*  */
 
-/**
- * Augment an target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src, keys) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment an target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
+  var VNode = function VNode (
+    tag,
+    data,
+    children,
+    text,
+    elm,
+    context,
+    componentOptions,
+    asyncFactory
   ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
+    this.tag = tag;
+    this.data = data;
+    this.children = children;
+    this.text = text;
+    this.elm = elm;
+    this.ns = undefined;
+    this.context = context;
+    this.fnContext = undefined;
+    this.fnOptions = undefined;
+    this.fnScopeId = undefined;
+    this.key = data && data.key;
+    this.componentOptions = componentOptions;
+    this.componentInstance = undefined;
+    this.parent = undefined;
+    this.raw = false;
+    this.isStatic = false;
+    this.isRootInsert = true;
+    this.isComment = false;
+    this.isCloned = false;
+    this.isOnce = false;
+    this.asyncFactory = asyncFactory;
+    this.asyncMeta = undefined;
+    this.isAsyncPlaceholder = false;
+  };
 
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
+  var prototypeAccessors = { child: { configurable: true } };
 
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
+  // DEPRECATED: alias for componentInstance for backwards compat.
+  /* istanbul ignore next */
+  prototypeAccessors.child.get = function () {
+    return this.componentInstance
+  };
 
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
+  Object.defineProperties( VNode.prototype, prototypeAccessors );
 
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
+  var createEmptyVNode = function (text) {
+    if ( text === void 0 ) text = '';
+
+    var node = new VNode();
+    node.text = text;
+    node.isComment = true;
+    return node
+  };
+
+  function createTextVNode (val) {
+    return new VNode(undefined, undefined, undefined, String(val))
+  }
+
+  // optimized shallow clone
+  // used for static nodes and slot nodes because they may be reused across
+  // multiple renders, cloning them avoids errors when DOM manipulations rely
+  // on their elm reference.
+  function cloneVNode (vnode) {
+    var cloned = new VNode(
+      vnode.tag,
+      vnode.data,
+      // #7975
+      // clone children array to avoid mutating original in case of cloning
+      // a child.
+      vnode.children && vnode.children.slice(),
+      vnode.text,
+      vnode.elm,
+      vnode.context,
+      vnode.componentOptions,
+      vnode.asyncFactory
+    );
+    cloned.ns = vnode.ns;
+    cloned.isStatic = vnode.isStatic;
+    cloned.key = vnode.key;
+    cloned.isComment = vnode.isComment;
+    cloned.fnContext = vnode.fnContext;
+    cloned.fnOptions = vnode.fnOptions;
+    cloned.fnScopeId = vnode.fnScopeId;
+    cloned.asyncMeta = vnode.asyncMeta;
+    cloned.isCloned = true;
+    return cloned
+  }
+
+  /*
+   * not type checking this file because flow doesn't play well with
+   * dynamically accessing methods on Array prototype
+   */
+
+  var arrayProto = Array.prototype;
+  var arrayMethods = Object.create(arrayProto);
+
+  var methodsToPatch = [
+    'push',
+    'pop',
+    'shift',
+    'unshift',
+    'splice',
+    'sort',
+    'reverse'
+  ];
+
+  /**
+   * Intercept mutating methods and emit events
+   */
+  methodsToPatch.forEach(function (method) {
+    // cache original method
+    var original = arrayProto[method];
+    def(arrayMethods, method, function mutator () {
+      var args = [], len = arguments.length;
+      while ( len-- ) args[ len ] = arguments[ len ];
+
+      var result = original.apply(this, args);
+      var ob = this.__ob__;
+      var inserted;
+      switch (method) {
+        case 'push':
+        case 'unshift':
+          inserted = args;
+          break
+        case 'splice':
+          inserted = args.slice(2);
+          break
+      }
+      if (inserted) { ob.observeArray(inserted); }
+      // notify change
+      ob.dep.notify();
+      return result
+    });
+  });
+
+  /*  */
+
+  var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+  /**
+   * In some cases we may want to disable observation inside a component's
+   * update computation.
+   */
+  var shouldObserve = true;
+
+  function toggleObserving (value) {
+    shouldObserve = value;
+  }
+
+  /**
+   * Observer class that is attached to each observed
+   * object. Once attached, the observer converts the target
+   * object's property keys into getter/setters that
+   * collect dependencies and dispatch updates.
+   */
+  var Observer = function Observer (value) {
+    this.value = value;
+    this.dep = new Dep();
+    this.vmCount = 0;
+    def(value, '__ob__', this);
+    if (Array.isArray(value)) {
+      if (hasProto) {
+        protoAugment(value, arrayMethods);
+      } else {
+        copyAugment(value, arrayMethods, arrayKeys);
+      }
+      this.observeArray(value);
+    } else {
+      this.walk(value);
+    }
+  };
+
+  /**
+   * Walk through all properties and convert them into
+   * getter/setters. This method should only be called when
+   * value type is Object.
+   */
+  Observer.prototype.walk = function walk (obj) {
+    var keys = Object.keys(obj);
+    for (var i = 0; i < keys.length; i++) {
+      defineReactive$$1(obj, keys[i]);
+    }
+  };
+
+  /**
+   * Observe a list of Array items.
+   */
+  Observer.prototype.observeArray = function observeArray (items) {
+    for (var i = 0, l = items.length; i < l; i++) {
+      observe(items[i]);
+    }
+  };
+
+  // helpers
+
+  /**
+   * Augment a target Object or Array by intercepting
+   * the prototype chain using __proto__
+   */
+  function protoAugment (target, src) {
+    /* eslint-disable no-proto */
+    target.__proto__ = src;
+    /* eslint-enable no-proto */
+  }
+
+  /**
+   * Augment a target Object or Array by defining
+   * hidden properties.
+   */
+  /* istanbul ignore next */
+  function copyAugment (target, src, keys) {
+    for (var i = 0, l = keys.length; i < l; i++) {
+      var key = keys[i];
+      def(target, key, src[key]);
+    }
+  }
+
+  /**
+   * Attempt to create an observer instance for a value,
+   * returns the new observer if successfully observed,
+   * or the existing observer if the value already has one.
+   */
+  function observe (value, asRootData) {
+    if (!isObject(value) || value instanceof VNode) {
+      return
+    }
+    var ob;
+    if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+      ob = value.__ob__;
+    } else if (
+      shouldObserve &&
+      !isServerRendering() &&
+      (Array.isArray(value) || isPlainObject(value)) &&
+      Object.isExtensible(value) &&
+      !value._isVue
+    ) {
+      ob = new Observer(value);
+    }
+    if (asRootData && ob) {
+      ob.vmCount++;
+    }
+    return ob
+  }
+
+  /**
+   * Define a reactive property on an Object.
+   */
+  function defineReactive$$1 (
+    obj,
+    key,
+    val,
+    customSetter,
+    shallow
+  ) {
+    var dep = new Dep();
+
+    var property = Object.getOwnPropertyDescriptor(obj, key);
+    if (property && property.configurable === false) {
+      return
+    }
+
+    // cater for pre-defined getter/setters
+    var getter = property && property.get;
+    var setter = property && property.set;
+    if ((!getter || setter) && arguments.length === 2) {
+      val = obj[key];
+    }
+
+    var childOb = !shallow && observe(val);
+    Object.defineProperty(obj, key, {
+      enumerable: true,
+      configurable: true,
+      get: function reactiveGetter () {
+        var value = getter ? getter.call(obj) : val;
+        if (Dep.target) {
+          dep.depend();
+          if (childOb) {
+            childOb.dep.depend();
+            if (Array.isArray(value)) {
+              dependArray(value);
+            }
+          }
+        }
+        return value
+      },
+      set: function reactiveSetter (newVal) {
+        var value = getter ? getter.call(obj) : val;
+        /* eslint-disable no-self-compare */
+        if (newVal === value || (newVal !== newVal && value !== value)) {
+          return
+        }
+        /* eslint-enable no-self-compare */
+        if (customSetter) {
+          customSetter();
+        }
+        // #7981: for accessor properties without setter
+        if (getter && !setter) { return }
+        if (setter) {
+          setter.call(obj, newVal);
+        } else {
+          val = newVal;
+        }
+        childOb = !shallow && observe(newVal);
+        dep.notify();
+      }
+    });
+  }
+
+  /**
+   * Set a property on an object. Adds the new property and
+   * triggers change notification if the property doesn't
+   * already exist.
+   */
+  function set (target, key, val) {
+    if (isUndef(target) || isPrimitive(target)
+    ) {
+      warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+    }
+    if (Array.isArray(target) && isValidArrayIndex(key)) {
+      target.length = Math.max(target.length, key);
+      target.splice(key, 1, val);
+      return val
+    }
+    if (key in target && !(key in Object.prototype)) {
+      target[key] = val;
+      return val
+    }
+    var ob = (target).__ob__;
+    if (target._isVue || (ob && ob.vmCount)) {
+      warn(
+        'Avoid adding reactive properties to a Vue instance or its root $data ' +
+        'at runtime - declare it upfront in the data option.'
+      );
+      return val
+    }
+    if (!ob) {
+      target[key] = val;
+      return val
+    }
+    defineReactive$$1(ob.value, key, val);
+    ob.dep.notify();
+    return val
+  }
+
+  /**
+   * Delete a property and trigger change if necessary.
+   */
+  function del (target, key) {
+    if (isUndef(target) || isPrimitive(target)
+    ) {
+      warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+    }
+    if (Array.isArray(target) && isValidArrayIndex(key)) {
+      target.splice(key, 1);
+      return
+    }
+    var ob = (target).__ob__;
+    if (target._isVue || (ob && ob.vmCount)) {
+      warn(
+        'Avoid deleting properties on a Vue instance or its root $data ' +
+        '- just set it to null.'
+      );
+      return
+    }
+    if (!hasOwn(target, key)) {
+      return
+    }
+    delete target[key];
+    if (!ob) {
+      return
+    }
+    ob.dep.notify();
+  }
+
+  /**
+   * Collect dependencies on array elements when the array is touched, since
+   * we cannot intercept array element access like property getters.
+   */
+  function dependArray (value) {
+    for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+      e = value[i];
+      e && e.__ob__ && e.__ob__.dep.depend();
+      if (Array.isArray(e)) {
+        dependArray(e);
+      }
+    }
+  }
+
+  /*  */
+
+  /**
+   * Option overwriting strategies are functions that handle
+   * how to merge a parent option value and a child option
+   * value into the final value.
+   */
+  var strats = config.optionMergeStrategies;
+
+  /**
+   * Options with restrictions
+   */
+  {
+    strats.el = strats.propsData = function (parent, child, vm, key) {
+      if (!vm) {
+        warn(
+          "option \"" + key + "\" can only be used during instance " +
+          'creation with the `new` keyword.'
+        );
+      }
+      return defaultStrat(parent, child)
+    };
+  }
+
+  /**
+   * Helper that recursively merges two data objects together.
+   */
+  function mergeData (to, from) {
+    if (!from) { return to }
+    var key, toVal, fromVal;
+    var keys = Object.keys(from);
+    for (var i = 0; i < keys.length; i++) {
+      key = keys[i];
+      toVal = to[key];
+      fromVal = from[key];
+      if (!hasOwn(to, key)) {
+        set(to, key, fromVal);
+      } else if (
+        toVal !== fromVal &&
+        isPlainObject(toVal) &&
+        isPlainObject(fromVal)
+      ) {
+        mergeData(toVal, fromVal);
+      }
+    }
+    return to
+  }
+
+  /**
+   * Data
+   */
+  function mergeDataOrFn (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      // in a Vue.extend merge, both should be functions
+      if (!childVal) {
+        return parentVal
+      }
+      if (!parentVal) {
+        return childVal
+      }
+      // when parentVal & childVal are both present,
+      // we need to return a function that returns the
+      // merged result of both functions... no need to
+      // check if parentVal is a function here because
+      // it has to be a function to pass previous merges.
+      return function mergedDataFn () {
+        return mergeData(
+          typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+          typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+        )
+      }
+    } else {
+      return function mergedInstanceDataFn () {
+        // instance merge
+        var instanceData = typeof childVal === 'function'
+          ? childVal.call(vm, vm)
+          : childVal;
+        var defaultData = typeof parentVal === 'function'
+          ? parentVal.call(vm, vm)
+          : parentVal;
+        if (instanceData) {
+          return mergeData(instanceData, defaultData)
+        } else {
+          return defaultData
+        }
+      }
+    }
+  }
+
+  strats.data = function (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      if (childVal && typeof childVal !== 'function') {
+        warn(
+          'The "data" option should be a function ' +
+          'that returns a per-instance value in component ' +
+          'definitions.',
+          vm
+        );
+
+        return parentVal
+      }
+      return mergeDataOrFn(parentVal, childVal)
+    }
+
+    return mergeDataOrFn(parentVal, childVal, vm)
+  };
+
+  /**
+   * Hooks and props are merged as arrays.
+   */
+  function mergeHook (
+    parentVal,
+    childVal
+  ) {
+    return childVal
+      ? parentVal
+        ? parentVal.concat(childVal)
+        : Array.isArray(childVal)
+          ? childVal
+          : [childVal]
+      : parentVal
+  }
+
+  LIFECYCLE_HOOKS.forEach(function (hook) {
+    strats[hook] = mergeHook;
+  });
+
+  /**
+   * Assets
+   *
+   * When a vm is present (instance creation), we need to do
+   * a three-way merge between constructor options, instance
+   * options and parent options.
+   */
+  function mergeAssets (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    var res = Object.create(parentVal || null);
+    if (childVal) {
+      assertObjectType(key, childVal, vm);
+      return extend(res, childVal)
+    } else {
+      return res
+    }
+  }
+
+  ASSET_TYPES.forEach(function (type) {
+    strats[type + 's'] = mergeAssets;
+  });
+
+  /**
+   * Watchers.
+   *
+   * Watchers hashes should not overwrite one
+   * another, so we merge them as arrays.
+   */
+  strats.watch = function (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    // work around Firefox's Object.prototype.watch...
+    if (parentVal === nativeWatch) { parentVal = undefined; }
+    if (childVal === nativeWatch) { childVal = undefined; }
+    /* istanbul ignore if */
+    if (!childVal) { return Object.create(parentVal || null) }
+    {
+      assertObjectType(key, childVal, vm);
+    }
+    if (!parentVal) { return childVal }
+    var ret = {};
+    extend(ret, parentVal);
+    for (var key$1 in childVal) {
+      var parent = ret[key$1];
+      var child = childVal[key$1];
+      if (parent && !Array.isArray(parent)) {
+        parent = [parent];
+      }
+      ret[key$1] = parent
+        ? parent.concat(child)
+        : Array.isArray(child) ? child : [child];
+    }
+    return ret
+  };
+
+  /**
+   * Other object hashes.
+   */
+  strats.props =
+  strats.methods =
+  strats.inject =
+  strats.computed = function (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    if (childVal && "development" !== 'production') {
+      assertObjectType(key, childVal, vm);
+    }
+    if (!parentVal) { return childVal }
+    var ret = Object.create(null);
+    extend(ret, parentVal);
+    if (childVal) { extend(ret, childVal); }
+    return ret
+  };
+  strats.provide = mergeDataOrFn;
+
+  /**
+   * Default strategy.
+   */
+  var defaultStrat = function (parentVal, childVal) {
+    return childVal === undefined
+      ? parentVal
+      : childVal
+  };
+
+  /**
+   * Validate component names
+   */
+  function checkComponents (options) {
+    for (var key in options.components) {
+      validateComponentName(key);
+    }
+  }
+
+  function validateComponentName (name) {
+    if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+      warn(
+        'Invalid component name: "' + name + '". Component names ' +
+        'can only contain alphanumeric characters and the hyphen, ' +
+        'and must start with a letter.'
+      );
+    }
+    if (isBuiltInTag(name) || config.isReservedTag(name)) {
+      warn(
+        'Do not use built-in or reserved HTML elements as component ' +
+        'id: ' + name
+      );
+    }
+  }
+
+  /**
+   * Ensure all props option syntax are normalized into the
+   * Object-based format.
+   */
+  function normalizeProps (options, vm) {
+    var props = options.props;
+    if (!props) { return }
+    var res = {};
+    var i, val, name;
+    if (Array.isArray(props)) {
+      i = props.length;
+      while (i--) {
+        val = props[i];
+        if (typeof val === 'string') {
+          name = camelize(val);
+          res[name] = { type: null };
+        } else {
+          warn('props must be strings when using array syntax.');
+        }
+      }
+    } else if (isPlainObject(props)) {
+      for (var key in props) {
+        val = props[key];
+        name = camelize(key);
+        res[name] = isPlainObject(val)
+          ? val
+          : { type: val };
+      }
+    } else {
+      warn(
+        "Invalid value for option \"props\": expected an Array or an Object, " +
+        "but got " + (toRawType(props)) + ".",
+        vm
+      );
+    }
+    options.props = res;
+  }
+
+  /**
+   * Normalize all injections into Object-based format
+   */
+  function normalizeInject (options, vm) {
+    var inject = options.inject;
+    if (!inject) { return }
+    var normalized = options.inject = {};
+    if (Array.isArray(inject)) {
+      for (var i = 0; i < inject.length; i++) {
+        normalized[inject[i]] = { from: inject[i] };
+      }
+    } else if (isPlainObject(inject)) {
+      for (var key in inject) {
+        var val = inject[key];
+        normalized[key] = isPlainObject(val)
+          ? extend({ from: key }, val)
+          : { from: val };
+      }
+    } else {
+      warn(
+        "Invalid value for option \"inject\": expected an Array or an Object, " +
+        "but got " + (toRawType(inject)) + ".",
+        vm
+      );
+    }
+  }
+
+  /**
+   * Normalize raw function directives into object format.
+   */
+  function normalizeDirectives (options) {
+    var dirs = options.directives;
+    if (dirs) {
+      for (var key in dirs) {
+        var def = dirs[key];
+        if (typeof def === 'function') {
+          dirs[key] = { bind: def, update: def };
+        }
+      }
+    }
+  }
+
+  function assertObjectType (name, value, vm) {
+    if (!isPlainObject(value)) {
+      warn(
+        "Invalid value for option \"" + name + "\": expected an Object, " +
+        "but got " + (toRawType(value)) + ".",
+        vm
+      );
+    }
+  }
+
+  /**
+   * Merge two option objects into a new one.
+   * Core utility used in both instantiation and inheritance.
+   */
+  function mergeOptions (
+    parent,
+    child,
+    vm
+  ) {
+    {
+      checkComponents(child);
+    }
+
+    if (typeof child === 'function') {
+      child = child.options;
+    }
+
+    normalizeProps(child, vm);
+    normalizeInject(child, vm);
+    normalizeDirectives(child);
+    
+    // Apply extends and mixins on the child options,
+    // but only if it is a raw options object that isn't
+    // the result of another mergeOptions call.
+    // Only merged options has the _base property.
+    if (!child._base) {
+      if (child.extends) {
+        parent = mergeOptions(parent, child.extends, vm);
+      }
+      if (child.mixins) {
+        for (var i = 0, l = child.mixins.length; i < l; i++) {
+          parent = mergeOptions(parent, child.mixins[i], vm);
+        }
+      }
+    }
+
+    var options = {};
+    var key;
+    for (key in parent) {
+      mergeField(key);
+    }
+    for (key in child) {
+      if (!hasOwn(parent, key)) {
+        mergeField(key);
+      }
+    }
+    function mergeField (key) {
+      var strat = strats[key] || defaultStrat;
+      options[key] = strat(parent[key], child[key], vm, key);
+    }
+    return options
+  }
+
+  /**
+   * Resolve an asset.
+   * This function is used because child instances need access
+   * to assets defined in its ancestor chain.
+   */
+  function resolveAsset (
+    options,
+    type,
+    id,
+    warnMissing
+  ) {
+    /* istanbul ignore if */
+    if (typeof id !== 'string') {
+      return
+    }
+    var assets = options[type];
+    // check local registration variations first
+    if (hasOwn(assets, id)) { return assets[id] }
+    var camelizedId = camelize(id);
+    if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+    var PascalCaseId = capitalize(camelizedId);
+    if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+    // fallback to prototype chain
+    var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+    if (warnMissing && !res) {
+      warn(
+        'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+        options
+      );
+    }
+    return res
+  }
+
+  /*  */
+
+
+
+  function validateProp (
+    key,
+    propOptions,
+    propsData,
+    vm
+  ) {
+    var prop = propOptions[key];
+    var absent = !hasOwn(propsData, key);
+    var value = propsData[key];
+    // boolean casting
+    var booleanIndex = getTypeIndex(Boolean, prop.type);
+    if (booleanIndex > -1) {
+      if (absent && !hasOwn(prop, 'default')) {
+        value = false;
+      } else if (value === '' || value === hyphenate(key)) {
+        // only cast empty string / same name to boolean if
+        // boolean has higher priority
+        var stringIndex = getTypeIndex(String, prop.type);
+        if (stringIndex < 0 || booleanIndex < stringIndex) {
+          value = true;
+        }
+      }
+    }
+    // check default value
+    if (value === undefined) {
+      value = getPropDefaultValue(vm, prop, key);
+      // since the default value is a fresh copy,
+      // make sure to observe it.
+      var prevShouldObserve = shouldObserve;
+      toggleObserving(true);
+      observe(value);
+      toggleObserving(prevShouldObserve);
+    }
+    {
+      assertProp(prop, key, value, vm, absent);
+    }
+    return value
+  }
+
+  /**
+   * Get the default value of a prop.
+   */
+  function getPropDefaultValue (vm, prop, key) {
+    // no default, return undefined
+    if (!hasOwn(prop, 'default')) {
+      return undefined
+    }
+    var def = prop.default;
+    // warn against non-factory defaults for Object & Array
+    if (isObject(def)) {
+      warn(
+        'Invalid default value for prop "' + key + '": ' +
+        'Props with type Object/Array must use a factory function ' +
+        'to return the default value.',
+        vm
+      );
+    }
+    // the raw prop value was also undefined from previous render,
+    // return previous default value to avoid unnecessary watcher trigger
+    if (vm && vm.$options.propsData &&
+      vm.$options.propsData[key] === undefined &&
+      vm._props[key] !== undefined
+    ) {
+      return vm._props[key]
+    }
+    // call factory function for non-Function types
+    // a value is Function if its prototype is function even across different execution context
+    return typeof def === 'function' && getType(prop.type) !== 'Function'
+      ? def.call(vm)
+      : def
+  }
+
+  /**
+   * Assert whether a prop is valid.
+   */
+  function assertProp (
+    prop,
+    name,
+    value,
+    vm,
+    absent
+  ) {
+    if (prop.required && absent) {
+      warn(
+        'Missing required prop: "' + name + '"',
+        vm
+      );
+      return
+    }
+    if (value == null && !prop.required) {
+      return
+    }
+    var type = prop.type;
+    var valid = !type || type === true;
+    var expectedTypes = [];
+    if (type) {
+      if (!Array.isArray(type)) {
+        type = [type];
+      }
+      for (var i = 0; i < type.length && !valid; i++) {
+        var assertedType = assertType(value, type[i]);
+        expectedTypes.push(assertedType.expectedType || '');
+        valid = assertedType.valid;
+      }
+    }
+
+    if (!valid) {
+      warn(
+        getInvalidTypeMessage(name, value, expectedTypes),
+        vm
+      );
+      return
+    }
+    var validator = prop.validator;
+    if (validator) {
+      if (!validator(value)) {
+        warn(
+          'Invalid prop: custom validator check failed for prop "' + name + '".',
+          vm
+        );
+      }
+    }
+  }
+
+  var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+  function assertType (value, type) {
+    var valid;
+    var expectedType = getType(type);
+    if (simpleCheckRE.test(expectedType)) {
+      var t = typeof value;
+      valid = t === expectedType.toLowerCase();
+      // for primitive wrapper objects
+      if (!valid && t === 'object') {
+        valid = value instanceof type;
+      }
+    } else if (expectedType === 'Object') {
+      valid = isPlainObject(value);
+    } else if (expectedType === 'Array') {
+      valid = Array.isArray(value);
+    } else {
+      valid = value instanceof type;
+    }
+    return {
+      valid: valid,
+      expectedType: expectedType
+    }
+  }
+
+  /**
+   * Use function string name to check built-in types,
+   * because a simple equality check will fail when running
+   * across different vms / iframes.
+   */
+  function getType (fn) {
+    var match = fn && fn.toString().match(/^\s*function (\w+)/);
+    return match ? match[1] : ''
+  }
+
+  function isSameType (a, b) {
+    return getType(a) === getType(b)
+  }
+
+  function getTypeIndex (type, expectedTypes) {
+    if (!Array.isArray(expectedTypes)) {
+      return isSameType(expectedTypes, type) ? 0 : -1
+    }
+    for (var i = 0, len = expectedTypes.length; i < len; i++) {
+      if (isSameType(expectedTypes[i], type)) {
+        return i
+      }
+    }
+    return -1
+  }
+
+  function getInvalidTypeMessage (name, value, expectedTypes) {
+    var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', '));
+    var expectedType = expectedTypes[0];
+    var receivedType = toRawType(value);
+    var expectedValue = styleValue(value, expectedType);
+    var receivedValue = styleValue(value, receivedType);
+    // check if we need to specify expected value
+    if (expectedTypes.length === 1 &&
+        isExplicable(expectedType) &&
+        !isBoolean(expectedType, receivedType)) {
+      message += " with value " + expectedValue;
+    }
+    message += ", got " + receivedType + " ";
+    // check if we need to specify received value
+    if (isExplicable(receivedType)) {
+      message += "with value " + receivedValue + ".";
+    }
+    return message
+  }
+
+  function styleValue (value, type) {
+    if (type === 'String') {
+      return ("\"" + value + "\"")
+    } else if (type === 'Number') {
+      return ("" + (Number(value)))
+    } else {
+      return ("" + value)
+    }
+  }
+
+  function isExplicable (value) {
+    var explicitTypes = ['string', 'number', 'boolean'];
+    return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+  }
+
+  function isBoolean () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+  }
+
+  /*  */
+
+  function handleError (err, vm, info) {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
+          }
+        }
+      }
+    }
+    globalHandleError(err, vm, info);
+  }
+
+  function globalHandleError (err, vm, info) {
+    if (config.errorHandler) {
+      try {
+        return config.errorHandler.call(null, err, vm, info)
+      } catch (e) {
+        logError(e, null, 'config.errorHandler');
+      }
+    }
+    logError(err, vm, info);
+  }
+
+  function logError (err, vm, info) {
+    {
+      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+    }
+    /* istanbul ignore else */
+    if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+      console.error(err);
+    } else {
+      throw err
+    }
+  }
+
+  /*  */
+
+  var callbacks = [];
+  var pending = false;
+
+  function flushCallbacks () {
+    pending = false;
+    var copies = callbacks.slice(0);
+    callbacks.length = 0;
+    for (var i = 0; i < copies.length; i++) {
+      copies[i]();
+    }
+  }
+
+  // Here we have async deferring wrappers using both microtasks and (macro) tasks.
+  // In < 2.4 we used microtasks everywhere, but there are some scenarios where
+  // microtasks have too high a priority and fire in between supposedly
+  // sequential events (e.g. #4521, #6690) or even between bubbling of the same
+  // event (#6566). However, using (macro) tasks everywhere also has subtle problems
+  // when state is changed right before repaint (e.g. #6813, out-in transitions).
+  // Here we use microtask by default, but expose a way to force (macro) task when
+  // needed (e.g. in event handlers attached by v-on).
+  var microTimerFunc;
+  var macroTimerFunc;
+  var useMacroTask = false;
+
+  // Determine (macro) task defer implementation.
+  // Technically setImmediate should be the ideal choice, but it's only available
+  // in IE. The only polyfill that consistently queues the callback after all DOM
+  // events triggered in the same loop is by using MessageChannel.
+  /* istanbul ignore if */
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+    macroTimerFunc = function () {
+      setImmediate(flushCallbacks);
+    };
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
+  )) {
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = flushCallbacks;
+    macroTimerFunc = function () {
+      port.postMessage(1);
+    };
+  } else {
+    /* istanbul ignore next */
+    macroTimerFunc = function () {
+      setTimeout(flushCallbacks, 0);
+    };
+  }
+
+  // Determine microtask defer implementation.
+  /* istanbul ignore next, $flow-disable-line */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    var p = Promise.resolve();
+    microTimerFunc = function () {
+      p.then(flushCallbacks);
+      // in problematic UIWebViews, Promise.then doesn't completely break, but
+      // it can get stuck in a weird state where callbacks are pushed into the
+      // microtask queue but the queue isn't being flushed, until the browser
+      // needs to do some other work, e.g. handle a timer. Therefore we can
+      // "force" the microtask queue to be flushed by adding an empty timer.
+      if (isIOS) { setTimeout(noop); }
+    };
+  } else {
+    // fallback to macro
+    microTimerFunc = macroTimerFunc;
+  }
+
+  /**
+   * Wrap a function so that if any code inside triggers state change,
+   * the changes are queued using a (macro) task instead of a microtask.
+   */
+  function withMacroTask (fn) {
+    return fn._withTask || (fn._withTask = function () {
+      useMacroTask = true;
+      try {
+        return fn.apply(null, arguments)
+      } finally {
+        useMacroTask = false;    
+      }
+    })
+  }
+
+  function nextTick (cb, ctx) {
+    var _resolve;
+    callbacks.push(function () {
+      if (cb) {
+        try {
+          cb.call(ctx);
+        } catch (e) {
+          handleError(e, ctx, 'nextTick');
+        }
+      } else if (_resolve) {
+        _resolve(ctx);
+      }
+    });
+    if (!pending) {
+      pending = true;
+      if (useMacroTask) {
+        macroTimerFunc();
+      } else {
+        microTimerFunc();
+      }
+    }
+    // $flow-disable-line
+    if (!cb && typeof Promise !== 'undefined') {
+      return new Promise(function (resolve) {
+        _resolve = resolve;
+      })
+    }
+  }
+
+  /*  */
+
+  var mark;
+  var measure;
+
+  {
+    var perf = inBrowser && window.performance;
+    /* istanbul ignore if */
+    if (
+      perf &&
+      perf.mark &&
+      perf.measure &&
+      perf.clearMarks &&
+      perf.clearMeasures
+    ) {
+      mark = function (tag) { return perf.mark(tag); };
+      measure = function (name, startTag, endTag) {
+        perf.measure(name, startTag, endTag);
+        perf.clearMarks(startTag);
+        perf.clearMarks(endTag);
+        perf.clearMeasures(name);
+      };
+    }
+  }
+
+  /* not type checking this file because flow doesn't play well with Proxy */
+
+  var initProxy;
+
+  {
+    var allowedGlobals = makeMap(
+      'Infinity,undefined,NaN,isFinite,isNaN,' +
+      'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+      'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+      'require' // for Webpack/Browserify
+    );
+
+    var warnNonPresent = function (target, key) {
+      warn(
+        "Property or method \"" + key + "\" is not defined on the instance but " +
+        'referenced during render. Make sure that this property is reactive, ' +
+        'either in the data option, or for class-based components, by ' +
+        'initializing the property. ' +
+        'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+        target
+      );
+    };
+
+    var warnReservedPrefix = function (target, key) {
+      warn(
+        "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+        'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+        'prevent conflicts with Vue internals' +
+        'See: https://vuejs.org/v2/api/#data',
+        target
+      );
+    };
+
+    var hasProxy =
+      typeof Proxy !== 'undefined' && isNative(Proxy);
+
+    if (hasProxy) {
+      var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+      config.keyCodes = new Proxy(config.keyCodes, {
+        set: function set (target, key, value) {
+          if (isBuiltInModifier(key)) {
+            warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+            return false
+          } else {
+            target[key] = value;
+            return true
+          }
+        }
+      });
+    }
+
+    var hasHandler = {
+      has: function has (target, key) {
+        var has = key in target;
+        var isAllowed = allowedGlobals(key) ||
+          (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
+        if (!has && !isAllowed) {
+          if (key in target.$data) { warnReservedPrefix(target, key); }
+          else { warnNonPresent(target, key); }
+        }
+        return has || !isAllowed
+      }
+    };
+
+    var getHandler = {
+      get: function get (target, key) {
+        if (typeof key === 'string' && !(key in target)) {
+          if (key in target.$data) { warnReservedPrefix(target, key); }
+          else { warnNonPresent(target, key); }
+        }
+        return target[key]
+      }
+    };
+
+    initProxy = function initProxy (vm) {
+      if (hasProxy) {
+        // determine which proxy handler to use
+        var options = vm.$options;
+        var handlers = options.render && options.render._withStripped
+          ? getHandler
+          : hasHandler;
+        vm._renderProxy = new Proxy(vm, handlers);
+      } else {
+        vm._renderProxy = vm;
+      }
+    };
+  }
+
+  /*  */
+
+  var seenObjects = new _Set();
+
+  /**
+   * Recursively traverse an object to evoke all converted
+   * getters, so that every nested property inside the object
+   * is collected as a "deep" dependency.
+   */
+  function traverse (val) {
+    _traverse(val, seenObjects);
+    seenObjects.clear();
+  }
+
+  function _traverse (val, seen) {
+    var i, keys;
+    var isA = Array.isArray(val);
+    if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+      return
+    }
+    if (val.__ob__) {
+      var depId = val.__ob__.dep.id;
+      if (seen.has(depId)) {
+        return
+      }
+      seen.add(depId);
+    }
+    if (isA) {
+      i = val.length;
+      while (i--) { _traverse(val[i], seen); }
+    } else {
+      keys = Object.keys(val);
+      i = keys.length;
+      while (i--) { _traverse(val[keys[i]], seen); }
+    }
+  }
+
+  /*  */
+
+  var normalizeEvent = cached(function (name) {
+    var passive = name.charAt(0) === '&';
+    name = passive ? name.slice(1) : name;
+    var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+    name = once$$1 ? name.slice(1) : name;
+    var capture = name.charAt(0) === '!';
+    name = capture ? name.slice(1) : name;
+    return {
+      name: name,
+      once: once$$1,
+      capture: capture,
+      passive: passive
+    }
+  });
+
+  function createFnInvoker (fns) {
+    function invoker () {
+      var arguments$1 = arguments;
+
+      var fns = invoker.fns;
+      if (Array.isArray(fns)) {
+        var cloned = fns.slice();
+        for (var i = 0; i < cloned.length; i++) {
+          cloned[i].apply(null, arguments$1);
+        }
+      } else {
+        // return handler return value for single handlers
+        return fns.apply(null, arguments)
+      }
+    }
+    invoker.fns = fns;
+    return invoker
+  }
+
+  function updateListeners (
+    on,
+    oldOn,
+    add,
+    remove$$1,
+    createOnceHandler,
+    vm
+  ) {
+    var name, def$$1, cur, old, event;
+    for (name in on) {
+      def$$1 = cur = on[name];
+      old = oldOn[name];
+      event = normalizeEvent(name);
+      if (isUndef(cur)) {
+        warn(
+          "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+          vm
+        );
+      } else if (isUndef(old)) {
+        if (isUndef(cur.fns)) {
+          cur = on[name] = createFnInvoker(cur);
+        }
+        if (isTrue(event.once)) {
+          cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+        }
+        add(event.name, cur, event.capture, event.passive, event.params);
+      } else if (cur !== old) {
+        old.fns = cur;
+        on[name] = old;
+      }
+    }
+    for (name in oldOn) {
+      if (isUndef(on[name])) {
+        event = normalizeEvent(name);
+        remove$$1(event.name, oldOn[name], event.capture);
+      }
+    }
+  }
+
+  /*  */
+
+  function mergeVNodeHook (def, hookKey, hook) {
+    if (def instanceof VNode) {
+      def = def.data.hook || (def.data.hook = {});
+    }
+    var invoker;
+    var oldHook = def[hookKey];
+
+    function wrappedHook () {
+      hook.apply(this, arguments);
+      // important: remove merged hook to ensure it's called only once
+      // and prevent memory leak
+      remove(invoker.fns, wrappedHook);
+    }
+
+    if (isUndef(oldHook)) {
+      // no existing hook
+      invoker = createFnInvoker([wrappedHook]);
+    } else {
+      /* istanbul ignore if */
+      if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+        // already a merged invoker
+        invoker = oldHook;
+        invoker.fns.push(wrappedHook);
+      } else {
+        // existing plain hook
+        invoker = createFnInvoker([oldHook, wrappedHook]);
+      }
+    }
+
+    invoker.merged = true;
+    def[hookKey] = invoker;
+  }
+
+  /*  */
+
+  function extractPropsFromVNodeData (
+    data,
+    Ctor,
+    tag
+  ) {
+    // we are only extracting raw values here.
+    // validation and default values are handled in the child
+    // component itself.
+    var propOptions = Ctor.options.props;
+    if (isUndef(propOptions)) {
+      return
+    }
+    var res = {};
+    var attrs = data.attrs;
+    var props = data.props;
+    if (isDef(attrs) || isDef(props)) {
+      for (var key in propOptions) {
+        var altKey = hyphenate(key);
+        {
+          var keyInLowerCase = key.toLowerCase();
+          if (
+            key !== keyInLowerCase &&
+            attrs && hasOwn(attrs, keyInLowerCase)
+          ) {
+            tip(
+              "Prop \"" + keyInLowerCase + "\" is passed to component " +
+              (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+              " \"" + key + "\". " +
+              "Note that HTML attributes are case-insensitive and camelCased " +
+              "props need to use their kebab-case equivalents when using in-DOM " +
+              "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+            );
+          }
+        }
+        checkProp(res, props, key, altKey, true) ||
+        checkProp(res, attrs, key, altKey, false);
+      }
+    }
+    return res
+  }
+
+  function checkProp (
+    res,
+    hash,
+    key,
+    altKey,
+    preserve
+  ) {
+    if (isDef(hash)) {
+      if (hasOwn(hash, key)) {
+        res[key] = hash[key];
+        if (!preserve) {
+          delete hash[key];
+        }
+        return true
+      } else if (hasOwn(hash, altKey)) {
+        res[key] = hash[altKey];
+        if (!preserve) {
+          delete hash[altKey];
+        }
+        return true
+      }
+    }
+    return false
+  }
+
+  /*  */
+
+  // The template compiler attempts to minimize the need for normalization by
+  // statically analyzing the template at compile time.
+  //
+  // For plain HTML markup, normalization can be completely skipped because the
+  // generated render function is guaranteed to return Array<VNode>. There are
+  // two cases where extra normalization is needed:
+
+  // 1. When the children contains components - because a functional component
+  // may return an Array instead of a single root. In this case, just a simple
+  // normalization is needed - if any child is an Array, we flatten the whole
+  // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+  // because functional components already normalize their own children.
+  function simpleNormalizeChildren (children) {
+    for (var i = 0; i < children.length; i++) {
+      if (Array.isArray(children[i])) {
+        return Array.prototype.concat.apply([], children)
+      }
+    }
+    return children
+  }
+
+  // 2. When the children contains constructs that always generated nested Arrays,
+  // e.g. <template>, <slot>, v-for, or when the children is provided by user
+  // with hand-written render functions / JSX. In such cases a full normalization
+  // is needed to cater to all possible types of children values.
+  function normalizeChildren (children) {
+    return isPrimitive(children)
+      ? [createTextVNode(children)]
+      : Array.isArray(children)
+        ? normalizeArrayChildren(children)
+        : undefined
+  }
+
+  function isTextNode (node) {
+    return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+  }
+
+  function normalizeArrayChildren (children, nestedIndex) {
+    var res = [];
+    var i, c, lastIndex, last;
+    for (i = 0; i < children.length; i++) {
+      c = children[i];
+      if (isUndef(c) || typeof c === 'boolean') { continue }
+      lastIndex = res.length - 1;
+      last = res[lastIndex];
+      //  nested
+      if (Array.isArray(c)) {
+        if (c.length > 0) {
+          c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+          // merge adjacent text nodes
+          if (isTextNode(c[0]) && isTextNode(last)) {
+            res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+            c.shift();
+          }
+          res.push.apply(res, c);
+        }
+      } else if (isPrimitive(c)) {
+        if (isTextNode(last)) {
+          // merge adjacent text nodes
+          // this is necessary for SSR hydration because text nodes are
+          // essentially merged when rendered to HTML strings
+          res[lastIndex] = createTextVNode(last.text + c);
+        } else if (c !== '') {
+          // convert primitive to vnode
+          res.push(createTextVNode(c));
+        }
+      } else {
+        if (isTextNode(c) && isTextNode(last)) {
+          // merge adjacent text nodes
+          res[lastIndex] = createTextVNode(last.text + c.text);
+        } else {
+          // default key for nested array children (likely generated by v-for)
+          if (isTrue(children._isVList) &&
+            isDef(c.tag) &&
+            isUndef(c.key) &&
+            isDef(nestedIndex)) {
+            c.key = "__vlist" + nestedIndex + "_" + i + "__";
+          }
+          res.push(c);
+        }
+      }
+    }
+    return res
+  }
+
+  /*  */
+
+  function ensureCtor (comp, base) {
+    if (
+      comp.__esModule ||
+      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+    ) {
+      comp = comp.default;
+    }
+    return isObject(comp)
+      ? base.extend(comp)
+      : comp
+  }
+
+  function createAsyncPlaceholder (
+    factory,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    var node = createEmptyVNode();
+    node.asyncFactory = factory;
+    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+    return node
+  }
+
+  function resolveAsyncComponent (
+    factory,
+    baseCtor,
+    context
+  ) {
+    if (isTrue(factory.error) && isDef(factory.errorComp)) {
+      return factory.errorComp
+    }
+
+    if (isDef(factory.resolved)) {
+      return factory.resolved
+    }
+
+    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+      return factory.loadingComp
+    }
+
+    if (isDef(factory.contexts)) {
+      // already pending
+      factory.contexts.push(context);
+    } else {
+      var contexts = factory.contexts = [context];
+      var sync = true;
+
+      var forceRender = function (renderCompleted) {
+        for (var i = 0, l = contexts.length; i < l; i++) {
+          contexts[i].$forceUpdate();
+        }
+
+        if (renderCompleted) {
+          contexts.length = 0;
+        }
+      };
+
+      var resolve = once(function (res) {
+        // cache resolved
+        factory.resolved = ensureCtor(res, baseCtor);
+        // invoke callbacks only if this is not a synchronous resolve
+        // (async resolves are shimmed as synchronous during SSR)
+        if (!sync) {
+          forceRender(true);
+        }
+      });
+
+      var reject = once(function (reason) {
+        warn(
+          "Failed to resolve async component: " + (String(factory)) +
+          (reason ? ("\nReason: " + reason) : '')
+        );
+        if (isDef(factory.errorComp)) {
+          factory.error = true;
+          forceRender(true);
+        }
+      });
+
+      var res = factory(resolve, reject);
+
+      if (isObject(res)) {
+        if (typeof res.then === 'function') {
+          // () => Promise
+          if (isUndef(factory.resolved)) {
+            res.then(resolve, reject);
+          }
+        } else if (isDef(res.component) && typeof res.component.then === 'function') {
+          res.component.then(resolve, reject);
+
+          if (isDef(res.error)) {
+            factory.errorComp = ensureCtor(res.error, baseCtor);
+          }
+
+          if (isDef(res.loading)) {
+            factory.loadingComp = ensureCtor(res.loading, baseCtor);
+            if (res.delay === 0) {
+              factory.loading = true;
+            } else {
+              setTimeout(function () {
+                if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                  factory.loading = true;
+                  forceRender(false);
+                }
+              }, res.delay || 200);
+            }
+          }
+
+          if (isDef(res.timeout)) {
+            setTimeout(function () {
+              if (isUndef(factory.resolved)) {
+                reject(
+                  "timeout (" + (res.timeout) + "ms)"
+                );
+              }
+            }, res.timeout);
+          }
+        }
+      }
+
+      sync = false;
+      // return in case resolved synchronously
+      return factory.loading
+        ? factory.loadingComp
+        : factory.resolved
+    }
+  }
+
+  /*  */
+
+  function isAsyncPlaceholder (node) {
+    return node.isComment && node.asyncFactory
+  }
+
+  /*  */
+
+  function getFirstComponentChild (children) {
+    if (Array.isArray(children)) {
+      for (var i = 0; i < children.length; i++) {
+        var c = children[i];
+        if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+          return c
+        }
+      }
+    }
+  }
+
+  /*  */
+
+  /*  */
+
+  function initEvents (vm) {
+    vm._events = Object.create(null);
+    vm._hasHookEvent = false;
+    // init parent attached events
+    var listeners = vm.$options._parentListeners;
+    if (listeners) {
+      updateComponentListeners(vm, listeners);
+    }
+  }
+
+  var target;
+
+  function add (event, fn) {
+    target.$on(event, fn);
+  }
+
+  function remove$1 (event, fn) {
+    target.$off(event, fn);
+  }
+
+  function createOnceHandler (event, fn) {
+    var _target = target;
+    return function onceHandler () {
+      var res = fn.apply(null, arguments);
+      if (res !== null) {
+        _target.$off(event, onceHandler);
+      }
+    }
+  }
+
+  function updateComponentListeners (
+    vm,
+    listeners,
+    oldListeners
+  ) {
+    target = vm;
+    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+    target = undefined;
+  }
+
+  function eventsMixin (Vue) {
+    var hookRE = /^hook:/;
+    Vue.prototype.$on = function (event, fn) {
+      var vm = this;
+      if (Array.isArray(event)) {
+        for (var i = 0, l = event.length; i < l; i++) {
+          vm.$on(event[i], fn);
+        }
+      } else {
+        (vm._events[event] || (vm._events[event] = [])).push(fn);
+        // optimize hook:event cost by using a boolean flag marked at registration
+        // instead of a hash lookup
+        if (hookRE.test(event)) {
+          vm._hasHookEvent = true;
+        }
+      }
+      return vm
+    };
+
+    Vue.prototype.$once = function (event, fn) {
+      var vm = this;
+      function on () {
+        vm.$off(event, on);
+        fn.apply(vm, arguments);
+      }
+      on.fn = fn;
+      vm.$on(event, on);
+      return vm
+    };
+
+    Vue.prototype.$off = function (event, fn) {
+      var vm = this;
+      // all
+      if (!arguments.length) {
+        vm._events = Object.create(null);
+        return vm
+      }
+      // array of events
+      if (Array.isArray(event)) {
+        for (var i = 0, l = event.length; i < l; i++) {
+          vm.$off(event[i], fn);
+        }
+        return vm
+      }
+      // specific event
+      var cbs = vm._events[event];
+      if (!cbs) {
+        return vm
+      }
+      if (!fn) {
+        vm._events[event] = null;
+        return vm
+      }
+      if (fn) {
+        // specific handler
+        var cb;
+        var i$1 = cbs.length;
+        while (i$1--) {
+          cb = cbs[i$1];
+          if (cb === fn || cb.fn === fn) {
+            cbs.splice(i$1, 1);
+            break
+          }
+        }
+      }
+      return vm
+    };
+
+    Vue.prototype.$emit = function (event) {
+      var vm = this;
+      {
+        var lowerCaseEvent = event.toLowerCase();
+        if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+          tip(
+            "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+            (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+            "Note that HTML attributes are case-insensitive and you cannot use " +
+            "v-on to listen to camelCase events when using in-DOM templates. " +
+            "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+          );
+        }
+      }
+      var cbs = vm._events[event];
+      if (cbs) {
+        cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+        var args = toArray(arguments, 1);
+        for (var i = 0, l = cbs.length; i < l; i++) {
+          try {
+            cbs[i].apply(vm, args);
+          } catch (e) {
+            handleError(e, vm, ("event handler for \"" + event + "\""));
+          }
+        }
+      }
+      return vm
+    };
+  }
+
+  /*  */
+
+
+
+  /**
+   * Runtime helper for resolving raw children VNodes into a slot object.
+   */
+  function resolveSlots (
+    children,
+    context
+  ) {
+    var slots = {};
+    if (!children) {
+      return slots
+    }
+    for (var i = 0, l = children.length; i < l; i++) {
+      var child = children[i];
+      var data = child.data;
+      // remove slot attribute if the node is resolved as a Vue slot node
+      if (data && data.attrs && data.attrs.slot) {
+        delete data.attrs.slot;
+      }
+      // named slots should only be respected if the vnode was rendered in the
+      // same context.
+      if ((child.context === context || child.fnContext === context) &&
+        data && data.slot != null
+      ) {
+        var name = data.slot;
+        var slot = (slots[name] || (slots[name] = []));
+        if (child.tag === 'template') {
+          slot.push.apply(slot, child.children || []);
+        } else {
+          slot.push(child);
+        }
+      } else {
+        (slots.default || (slots.default = [])).push(child);
+      }
+    }
+    // ignore slots that contains only whitespace
+    for (var name$1 in slots) {
+      if (slots[name$1].every(isWhitespace)) {
+        delete slots[name$1];
+      }
+    }
+    return slots
+  }
+
+  function isWhitespace (node) {
+    return (node.isComment && !node.asyncFactory) || node.text === ' '
+  }
+
+  function resolveScopedSlots (
+    fns, // see flow/vnode
+    res
+  ) {
+    res = res || {};
+    for (var i = 0; i < fns.length; i++) {
+      if (Array.isArray(fns[i])) {
+        resolveScopedSlots(fns[i], res);
+      } else {
+        res[fns[i].key] = fns[i].fn;
+      }
+    }
+    return res
+  }
+
+  /*  */
+
+  var activeInstance = null;
+  var isUpdatingChildComponent = false;
+
+  function initLifecycle (vm) {
+    var options = vm.$options;
+
+    // locate first non-abstract parent
+    var parent = options.parent;
+    if (parent && !options.abstract) {
+      while (parent.$options.abstract && parent.$parent) {
+        parent = parent.$parent;
+      }
+      parent.$children.push(vm);
+    }
+
+    vm.$parent = parent;
+    vm.$root = parent ? parent.$root : vm;
+
+    vm.$children = [];
+    vm.$refs = {};
+
+    vm._watcher = null;
+    vm._inactive = null;
+    vm._directInactive = false;
+    vm._isMounted = false;
+    vm._isDestroyed = false;
+    vm._isBeingDestroyed = false;
+  }
+
+  function lifecycleMixin (Vue) {
+    Vue.prototype._update = function (vnode, hydrating) {
+      var vm = this;
+      var prevEl = vm.$el;
+      var prevVnode = vm._vnode;
+      var prevActiveInstance = activeInstance;
+      activeInstance = vm;
+      vm._vnode = vnode;
+      // Vue.prototype.__patch__ is injected in entry points
+      // based on the rendering backend used.
+      if (!prevVnode) {
+        // initial render
+        vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+      } else {
+        // updates
+        vm.$el = vm.__patch__(prevVnode, vnode);
+      }
+      activeInstance = prevActiveInstance;
+      // update __vue__ reference
+      if (prevEl) {
+        prevEl.__vue__ = null;
+      }
+      if (vm.$el) {
+        vm.$el.__vue__ = vm;
+      }
+      // if parent is an HOC, update its $el as well
+      if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+        vm.$parent.$el = vm.$el;
+      }
+      // updated hook is called by the scheduler to ensure that children are
+      // updated in a parent's updated hook.
+    };
+
+    Vue.prototype.$forceUpdate = function () {
+      var vm = this;
+      if (vm._watcher) {
+        vm._watcher.update();
+      }
+    };
+
+    Vue.prototype.$destroy = function () {
+      var vm = this;
+      if (vm._isBeingDestroyed) {
+        return
+      }
+      callHook(vm, 'beforeDestroy');
+      vm._isBeingDestroyed = true;
+      // remove self from parent
+      var parent = vm.$parent;
+      if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+        remove(parent.$children, vm);
+      }
+      // teardown watchers
+      if (vm._watcher) {
+        vm._watcher.teardown();
+      }
+      var i = vm._watchers.length;
+      while (i--) {
+        vm._watchers[i].teardown();
+      }
+      // remove reference from data ob
+      // frozen object may not have observer.
+      if (vm._data.__ob__) {
+        vm._data.__ob__.vmCount--;
+      }
+      // call the last hook...
+      vm._isDestroyed = true;
+      // invoke destroy hooks on current rendered tree
+      vm.__patch__(vm._vnode, null);
+      // fire destroyed hook
+      callHook(vm, 'destroyed');
+      // turn off all instance listeners.
+      vm.$off();
+      // remove __vue__ reference
+      if (vm.$el) {
+        vm.$el.__vue__ = null;
+      }
+      // release circular reference (#6759)
+      if (vm.$vnode) {
+        vm.$vnode.parent = null;
+      }
+    };
+  }
+
+  function mountComponent (
+    vm,
+    el,
+    hydrating
+  ) {
+    vm.$el = el;
+    if (!vm.$options.render) {
+      vm.$options.render = createEmptyVNode;
+      {
+        /* istanbul ignore if */
+        if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+          vm.$options.el || el) {
+          warn(
+            'You are using the runtime-only build of Vue where the template ' +
+            'compiler is not available. Either pre-compile the templates into ' +
+            'render functions, or use the compiler-included build.',
+            vm
+          );
+        } else {
+          warn(
+            'Failed to mount component: template or render function not defined.',
+            vm
+          );
+        }
+      }
+    }
+    callHook(vm, 'beforeMount');
+
+    var updateComponent;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      updateComponent = function () {
+        var name = vm._name;
+        var id = vm._uid;
+        var startTag = "vue-perf-start:" + id;
+        var endTag = "vue-perf-end:" + id;
+
+        mark(startTag);
+        var vnode = vm._render();
+        mark(endTag);
+        measure(("vue " + name + " render"), startTag, endTag);
+
+        mark(startTag);
+        vm._update(vnode, hydrating);
+        mark(endTag);
+        measure(("vue " + name + " patch"), startTag, endTag);
+      };
+    } else {
+      updateComponent = function () {
+        vm._update(vm._render(), hydrating);
+      };
+    }
+
+    // we set this to vm._watcher inside the watcher's constructor
+    // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+    // component's mounted hook), which relies on vm._watcher being already defined
+    new Watcher(vm, updateComponent, noop, {
+      before: function before () {
+        if (vm._isMounted) {
+          callHook(vm, 'beforeUpdate');
+        }
+      }
+    }, true /* isRenderWatcher */);
+    hydrating = false;
+
+    // manually mounted instance, call mounted on self
+    // mounted is called for render-created child components in its inserted hook
+    if (vm.$vnode == null) {
+      vm._isMounted = true;
+      callHook(vm, 'mounted');
+    }
+    return vm
+  }
+
+  function updateChildComponent (
+    vm,
+    propsData,
+    listeners,
+    parentVnode,
+    renderChildren
+  ) {
+    {
+      isUpdatingChildComponent = true;
+    }
+
+    // determine whether component has slot children
+    // we need to do this before overwriting $options._renderChildren
+    var hasChildren = !!(
+      renderChildren ||               // has new static slots
+      vm.$options._renderChildren ||  // has old static slots
+      parentVnode.data.scopedSlots || // has new scoped slots
+      vm.$scopedSlots !== emptyObject // has old scoped slots
+    );
+
+    vm.$options._parentVnode = parentVnode;
+    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+    if (vm._vnode) { // update child tree's parent
+      vm._vnode.parent = parentVnode;
+    }
+    vm.$options._renderChildren = renderChildren;
+
+    // update $attrs and $listeners hash
+    // these are also reactive so they may trigger child update if the child
+    // used them during render
+    vm.$attrs = parentVnode.data.attrs || emptyObject;
+    vm.$listeners = listeners || emptyObject;
+
+    // update props
+    if (propsData && vm.$options.props) {
+      toggleObserving(false);
+      var props = vm._props;
+      var propKeys = vm.$options._propKeys || [];
+      for (var i = 0; i < propKeys.length; i++) {
+        var key = propKeys[i];
+        var propOptions = vm.$options.props; // wtf flow?
+        props[key] = validateProp(key, propOptions, propsData, vm);
+      }
+      toggleObserving(true);
+      // keep a copy of raw propsData
+      vm.$options.propsData = propsData;
+    }
+
+    // update listeners
+    listeners = listeners || emptyObject;
+    var oldListeners = vm.$options._parentListeners;
+    vm.$options._parentListeners = listeners;
+    updateComponentListeners(vm, listeners, oldListeners);
+
+    // resolve slots + force update if has children
+    if (hasChildren) {
+      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+      vm.$forceUpdate();
+    }
+
+    {
+      isUpdatingChildComponent = false;
+    }
+  }
+
+  function isInInactiveTree (vm) {
+    while (vm && (vm = vm.$parent)) {
+      if (vm._inactive) { return true }
+    }
+    return false
+  }
+
+  function activateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = false;
+      if (isInInactiveTree(vm)) {
+        return
+      }
+    } else if (vm._directInactive) {
+      return
+    }
+    if (vm._inactive || vm._inactive === null) {
+      vm._inactive = false;
+      for (var i = 0; i < vm.$children.length; i++) {
+        activateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'activated');
+    }
+  }
+
+  function deactivateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = true;
+      if (isInInactiveTree(vm)) {
+        return
+      }
+    }
+    if (!vm._inactive) {
+      vm._inactive = true;
+      for (var i = 0; i < vm.$children.length; i++) {
+        deactivateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'deactivated');
+    }
+  }
+
+  function callHook (vm, hook) {
+    // #7573 disable dep collection when invoking lifecycle hooks
+    pushTarget();
+    var handlers = vm.$options[hook];
+    if (handlers) {
+      for (var i = 0, j = handlers.length; i < j; i++) {
+        try {
+          handlers[i].call(vm);
+        } catch (e) {
+          handleError(e, vm, (hook + " hook"));
+        }
+      }
+    }
+    if (vm._hasHookEvent) {
+      vm.$emit('hook:' + hook);
+    }
+    popTarget();
+  }
+
+  /*  */
+
+  var MAX_UPDATE_COUNT = 100;
+
+  var queue = [];
+  var activatedChildren = [];
+  var has = {};
+  var circular = {};
+  var waiting = false;
+  var flushing = false;
+  var index = 0;
+
+  /**
+   * Reset the scheduler's state.
+   */
+  function resetSchedulerState () {
+    index = queue.length = activatedChildren.length = 0;
+    has = {};
+    {
+      circular = {};
+    }
+    waiting = flushing = false;
+  }
+
+  /**
+   * Flush both queues and run the watchers.
+   */
+  function flushSchedulerQueue () {
+    flushing = true;
+    var watcher, id;
+
+    // Sort queue before flush.
+    // This ensures that:
+    // 1. Components are updated from parent to child. (because parent is always
+    //    created before the child)
+    // 2. A component's user watchers are run before its render watcher (because
+    //    user watchers are created before the render watcher)
+    // 3. If a component is destroyed during a parent component's watcher run,
+    //    its watchers can be skipped.
+    queue.sort(function (a, b) { return a.id - b.id; });
+
+    // do not cache length because more watchers might be pushed
+    // as we run existing watchers
+    for (index = 0; index < queue.length; index++) {
+      watcher = queue[index];
+      if (watcher.before) {
+        watcher.before();
+      }
+      id = watcher.id;
+      has[id] = null;
+      watcher.run();
+      // in dev build, check and stop circular updates.
+      if (has[id] != null) {
+        circular[id] = (circular[id] || 0) + 1;
+        if (circular[id] > MAX_UPDATE_COUNT) {
+          warn(
+            'You may have an infinite update loop ' + (
+              watcher.user
+                ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+                : "in a component render function."
+            ),
+            watcher.vm
+          );
+          break
+        }
+      }
+    }
+
+    // keep copies of post queues before resetting state
+    var activatedQueue = activatedChildren.slice();
+    var updatedQueue = queue.slice();
+
+    resetSchedulerState();
+
+    // call component updated and activated hooks
+    callActivatedHooks(activatedQueue);
+    callUpdatedHooks(updatedQueue);
+
+    // devtool hook
+    /* istanbul ignore if */
+    if (devtools && config.devtools) {
+      devtools.emit('flush');
+    }
+  }
+
+  function callUpdatedHooks (queue) {
+    var i = queue.length;
+    while (i--) {
+      var watcher = queue[i];
+      var vm = watcher.vm;
+      if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'updated');
+      }
+    }
+  }
+
+  /**
+   * Queue a kept-alive component that was activated during patch.
+   * The queue will be processed after the entire tree has been patched.
+   */
+  function queueActivatedComponent (vm) {
+    // setting _inactive to false here so that a render function can
+    // rely on checking whether it's in an inactive tree (e.g. router-view)
+    vm._inactive = false;
+    activatedChildren.push(vm);
+  }
+
+  function callActivatedHooks (queue) {
+    for (var i = 0; i < queue.length; i++) {
+      queue[i]._inactive = true;
+      activateChildComponent(queue[i], true /* true */);
+    }
+  }
+
+  /**
+   * Push a watcher into the watcher queue.
+   * Jobs with duplicate IDs will be skipped unless it's
+   * pushed when the queue is being flushed.
+   */
+  function queueWatcher (watcher) {
+    var id = watcher.id;
+    if (has[id] == null) {
+      has[id] = true;
+      if (!flushing) {
+        queue.push(watcher);
+      } else {
+        // if already flushing, splice the watcher based on its id
+        // if already past its id, it will be run next immediately.
+        var i = queue.length - 1;
+        while (i > index && queue[i].id > watcher.id) {
+          i--;
+        }
+        queue.splice(i + 1, 0, watcher);
+      }
+      // queue the flush
+      if (!waiting) {
+        waiting = true;
+
+        if (!config.async) {
+          flushSchedulerQueue();
+          return
+        }
+        nextTick(flushSchedulerQueue);
+      }
+    }
+  }
+
+  /*  */
+
+
+
+  var uid$1 = 0;
+
+  /**
+   * A watcher parses an expression, collects dependencies,
+   * and fires callback when the expression value changes.
+   * This is used for both the $watch() api and directives.
+   */
+  var Watcher = function Watcher (
+    vm,
+    expOrFn,
+    cb,
+    options,
+    isRenderWatcher
+  ) {
+    this.vm = vm;
+    if (isRenderWatcher) {
+      vm._watcher = this;
+    }
+    vm._watchers.push(this);
+    // options
+    if (options) {
+      this.deep = !!options.deep;
+      this.user = !!options.user;
+      this.lazy = !!options.lazy;
+      this.sync = !!options.sync;
+      this.before = options.before;
+    } else {
+      this.deep = this.user = this.lazy = this.sync = false;
+    }
+    this.cb = cb;
+    this.id = ++uid$1; // uid for batching
+    this.active = true;
+    this.dirty = this.lazy; // for lazy watchers
+    this.deps = [];
+    this.newDeps = [];
+    this.depIds = new _Set();
+    this.newDepIds = new _Set();
+    this.expression = expOrFn.toString();
+    // parse expression for getter
+    if (typeof expOrFn === 'function') {
+      this.getter = expOrFn;
+    } else {
+      this.getter = parsePath(expOrFn);
+      if (!this.getter) {
+        this.getter = noop;
+        warn(
+          "Failed watching path: \"" + expOrFn + "\" " +
+          'Watcher only accepts simple dot-delimited paths. ' +
+          'For full control, use a function instead.',
+          vm
+        );
+      }
+    }
+    this.value = this.lazy
+      ? undefined
+      : this.get();
+  };
+
+  /**
+   * Evaluate the getter, and re-collect dependencies.
+   */
+  Watcher.prototype.get = function get () {
+    pushTarget(this);
+    var value;
+    var vm = this.vm;
+    try {
+      value = this.getter.call(vm, vm);
+    } catch (e) {
+      if (this.user) {
+        handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+      } else {
+        throw e
+      }
+    } finally {
+      // "touch" every property so they are all tracked as
+      // dependencies for deep watching
+      if (this.deep) {
+        traverse(value);
+      }
+      popTarget();
+      this.cleanupDeps();
+    }
+    return value
+  };
+
+  /**
+   * Add a dependency to this directive.
+   */
+  Watcher.prototype.addDep = function addDep (dep) {
+    var id = dep.id;
+    if (!this.newDepIds.has(id)) {
+      this.newDepIds.add(id);
+      this.newDeps.push(dep);
+      if (!this.depIds.has(id)) {
+        dep.addSub(this);
+      }
+    }
+  };
+
+  /**
+   * Clean up for dependency collection.
+   */
+  Watcher.prototype.cleanupDeps = function cleanupDeps () {
+    var i = this.deps.length;
+    while (i--) {
+      var dep = this.deps[i];
+      if (!this.newDepIds.has(dep.id)) {
+        dep.removeSub(this);
+      }
+    }
+    var tmp = this.depIds;
+    this.depIds = this.newDepIds;
+    this.newDepIds = tmp;
+    this.newDepIds.clear();
+    tmp = this.deps;
+    this.deps = this.newDeps;
+    this.newDeps = tmp;
+    this.newDeps.length = 0;
+  };
+
+  /**
+   * Subscriber interface.
+   * Will be called when a dependency changes.
+   */
+  Watcher.prototype.update = function update () {
+    /* istanbul ignore else */
+    if (this.lazy) {
+      this.dirty = true;
+    } else if (this.sync) {
+      this.run();
+    } else {
+      queueWatcher(this);
+    }
+  };
+
+  /**
+   * Scheduler job interface.
+   * Will be called by the scheduler.
+   */
+  Watcher.prototype.run = function run () {
+    if (this.active) {
+      var value = this.get();
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        var oldValue = this.value;
+        this.value = value;
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue);
+          } catch (e) {
+            handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue);
+        }
+      }
+    }
+  };
+
+  /**
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
+   */
+  Watcher.prototype.evaluate = function evaluate () {
+    this.value = this.get();
+    this.dirty = false;
+  };
+
+  /**
+   * Depend on all deps collected by this watcher.
+   */
+  Watcher.prototype.depend = function depend () {
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].depend();
+    }
+  };
+
+  /**
+   * Remove self from all dependencies' subscriber list.
+   */
+  Watcher.prototype.teardown = function teardown () {
+    if (this.active) {
+      // remove self from vm's watcher list
+      // this is a somewhat expensive operation so we skip it
+      // if the vm is being destroyed.
+      if (!this.vm._isBeingDestroyed) {
+        remove(this.vm._watchers, this);
+      }
+      var i = this.deps.length;
+      while (i--) {
+        this.deps[i].removeSub(this);
+      }
+      this.active = false;
+    }
+  };
+
+  /*  */
+
+  var sharedPropertyDefinition = {
+    enumerable: true,
+    configurable: true,
+    get: noop,
+    set: noop
+  };
+
+  function proxy (target, sourceKey, key) {
+    sharedPropertyDefinition.get = function proxyGetter () {
+      return this[sourceKey][key]
+    };
+    sharedPropertyDefinition.set = function proxySetter (val) {
+      this[sourceKey][key] = val;
+    };
+    Object.defineProperty(target, key, sharedPropertyDefinition);
+  }
+
+  function initState (vm) {
+    vm._watchers = [];
+    var opts = vm.$options;
+    if (opts.props) { initProps(vm, opts.props); }
+    if (opts.methods) { initMethods(vm, opts.methods); }
+    if (opts.data) {
+      initData(vm);
+    } else {
+      observe(vm._data = {}, true /* asRootData */);
+    }
+    if (opts.computed) { initComputed(vm, opts.computed); }
+    if (opts.watch && opts.watch !== nativeWatch) {
+      initWatch(vm, opts.watch);
+    }
+  }
+
+  function initProps (vm, propsOptions) {
+    var propsData = vm.$options.propsData || {};
+    var props = vm._props = {};
+    // cache prop keys so that future props updates can iterate using Array
+    // instead of dynamic object key enumeration.
+    var keys = vm.$options._propKeys = [];
+    var isRoot = !vm.$parent;
+    // root instance props should be converted
+    if (!isRoot) {
+      toggleObserving(false);
+    }
+    var loop = function ( key ) {
+      keys.push(key);
+      var value = validateProp(key, propsOptions, propsData, vm);
+      /* istanbul ignore else */
+      {
+        var hyphenatedKey = hyphenate(key);
+        if (isReservedAttribute(hyphenatedKey) ||
+            config.isReservedAttr(hyphenatedKey)) {
+          warn(
+            ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+            vm
+          );
+        }
+        defineReactive$$1(props, key, value, function () {
+          if (!isRoot && !isUpdatingChildComponent) {
+            warn(
+              "Avoid mutating a prop directly since the value will be " +
+              "overwritten whenever the parent component re-renders. " +
+              "Instead, use a data or computed property based on the prop's " +
+              "value. Prop being mutated: \"" + key + "\"",
+              vm
+            );
           }
+        });
+      }
+      // static props are already proxied on the component's prototype
+      // during Vue.extend(). We only need to proxy props defined at
+      // instantiation here.
+      if (!(key in vm)) {
+        proxy(vm, "_props", key);
+      }
+    };
+
+    for (var key in propsOptions) loop( key );
+    toggleObserving(true);
+  }
+
+  function initData (vm) {
+    var data = vm.$options.data;
+    data = vm._data = typeof data === 'function'
+      ? getData(data, vm)
+      : data || {};
+    if (!isPlainObject(data)) {
+      data = {};
+      warn(
+        'data functions should return an object:\n' +
+        'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+        vm
+      );
+    }
+    // proxy data on instance
+    var keys = Object.keys(data);
+    var props = vm.$options.props;
+    var methods = vm.$options.methods;
+    var i = keys.length;
+    while (i--) {
+      var key = keys[i];
+      {
+        if (methods && hasOwn(methods, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a data property."),
+            vm
+          );
         }
       }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
+      if (props && hasOwn(props, key)) {
+        warn(
+          "The data property \"" + key + "\" is already declared as a prop. " +
+          "Use prop default value instead.",
+          vm
+        );
+      } else if (!isReserved(key)) {
+        proxy(vm, "_data", key);
+      }
+    }
+    // observe data
+    observe(data, true /* asRootData */);
+  }
+
+  function getData (data, vm) {
+    // #7573 disable dep collection when invoking data getters
+    pushTarget();
+    try {
+      return data.call(vm, vm)
+    } catch (e) {
+      handleError(e, vm, "data()");
+      return {}
+    } finally {
+      popTarget();
+    }
+  }
+
+  var computedWatcherOptions = { lazy: true };
+
+  function initComputed (vm, computed) {
+    // $flow-disable-line
+    var watchers = vm._computedWatchers = Object.create(null);
+    // computed properties are just getters during SSR
+    var isSSR = isServerRendering();
+
+    for (var key in computed) {
+      var userDef = computed[key];
+      var getter = typeof userDef === 'function' ? userDef : userDef.get;
+      if (getter == null) {
+        warn(
+          ("Getter is missing for computed property \"" + key + "\"."),
+          vm
+        );
       }
-      /* eslint-enable no-self-compare */
-      if ("development" !== 'production' && customSetter) {
-        customSetter();
+
+      if (!isSSR) {
+        // create internal watcher for the computed property.
+        watchers[key] = new Watcher(
+          vm,
+          getter || noop,
+          noop,
+          computedWatcherOptions
+        );
       }
-      if (setter) {
-        setter.call(obj, newVal);
+
+      // component-defined computed properties are already defined on the
+      // component prototype. We only need to define computed properties defined
+      // at instantiation here.
+      if (!(key in vm)) {
+        defineComputed(vm, key, userDef);
       } else {
-        val = newVal;
+        if (key in vm.$data) {
+          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+        } else if (vm.$options.props && key in vm.$options.props) {
+          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+        }
       }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
     }
-  });
-}
+  }
 
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if ("development" !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
+  function defineComputed (
+    target,
+    key,
+    userDef
   ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+    var shouldCache = !isServerRendering();
+    if (typeof userDef === 'function') {
+      sharedPropertyDefinition.get = shouldCache
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef);
+      sharedPropertyDefinition.set = noop;
+    } else {
+      sharedPropertyDefinition.get = userDef.get
+        ? shouldCache && userDef.cache !== false
+          ? createComputedGetter(key)
+          : createGetterInvoker(userDef.get)
+        : noop;
+      sharedPropertyDefinition.set = userDef.set || noop;
+    }
+    if (sharedPropertyDefinition.set === noop) {
+      sharedPropertyDefinition.set = function () {
+        warn(
+          ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+          this
+        );
+      };
+    }
+    Object.defineProperty(target, key, sharedPropertyDefinition);
   }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
+
+  function createComputedGetter (key) {
+    return function computedGetter () {
+      var watcher = this._computedWatchers && this._computedWatchers[key];
+      if (watcher) {
+        if (watcher.dirty) {
+          watcher.evaluate();
+        }
+        if (Dep.target) {
+          watcher.depend();
+        }
+        return watcher.value
+      }
+    }
   }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
+
+  function createGetterInvoker(fn) {
+    return function computedGetter () {
+      return fn.call(this, this)
+    }
   }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
+
+  function initMethods (vm, methods) {
+    var props = vm.$options.props;
+    for (var key in methods) {
+      {
+        if (typeof methods[key] !== 'function') {
+          warn(
+            "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+            "Did you reference the function correctly?",
+            vm
+          );
+        }
+        if (props && hasOwn(props, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a prop."),
+            vm
+          );
+        }
+        if ((key in vm) && isReserved(key)) {
+          warn(
+            "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+            "Avoid defining component methods that start with _ or $."
+          );
+        }
+      }
+      vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+    }
   }
-  if (!ob) {
-    target[key] = val;
-    return val
+
+  function initWatch (vm, watch) {
+    for (var key in watch) {
+      var handler = watch[key];
+      if (Array.isArray(handler)) {
+        for (var i = 0; i < handler.length; i++) {
+          createWatcher(vm, key, handler[i]);
+        }
+      } else {
+        createWatcher(vm, key, handler);
+      }
+    }
   }
-  defineReactive(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
 
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if ("development" !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
+  function createWatcher (
+    vm,
+    expOrFn,
+    handler,
+    options
   ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
+    if (isPlainObject(handler)) {
+      options = handler;
+      handler = handler.handler;
+    }
+    if (typeof handler === 'string') {
+      handler = vm[handler];
+    }
+    return vm.$watch(expOrFn, handler, options)
   }
-  ob.dep.notify();
-}
 
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
+  function stateMixin (Vue) {
+    // flow somehow has problems with directly declared definition object
+    // when using Object.defineProperty, so we have to procedurally build up
+    // the object here.
+    var dataDef = {};
+    dataDef.get = function () { return this._data };
+    var propsDef = {};
+    propsDef.get = function () { return this._props };
+    {
+      dataDef.set = function () {
+        warn(
+          'Avoid replacing instance root $data. ' +
+          'Use nested data properties instead.',
+          this
+        );
+      };
+      propsDef.set = function () {
+        warn("$props is readonly.", this);
+      };
     }
+    Object.defineProperty(Vue.prototype, '$data', dataDef);
+    Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+    Vue.prototype.$set = set;
+    Vue.prototype.$delete = del;
+
+    Vue.prototype.$watch = function (
+      expOrFn,
+      cb,
+      options
+    ) {
+      var vm = this;
+      if (isPlainObject(cb)) {
+        return createWatcher(vm, expOrFn, cb, options)
+      }
+      options = options || {};
+      options.user = true;
+      var watcher = new Watcher(vm, expOrFn, cb, options);
+      if (options.immediate) {
+        try {
+          cb.call(vm, watcher.value);
+        } catch (error) {
+          handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+        }
+      }
+      return function unwatchFn () {
+        watcher.teardown();
+      }
+    };
   }
-}
 
-/*  */
+  /*  */
 
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
+  function initProvide (vm) {
+    var provide = vm.$options.provide;
+    if (provide) {
+      vm._provided = typeof provide === 'function'
+        ? provide.call(vm)
+        : provide;
+    }
+  }
 
-/**
- * Options with restrictions
- */
-{
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
+  function initInjections (vm) {
+    var result = resolveInject(vm.$options.inject, vm);
+    if (result) {
+      toggleObserving(false);
+      Object.keys(result).forEach(function (key) {
+        /* istanbul ignore else */
+        {
+          defineReactive$$1(vm, key, result[key], function () {
+            warn(
+              "Avoid mutating an injected value directly since the changes will be " +
+              "overwritten whenever the provided component re-renders. " +
+              "injection being mutated: \"" + key + "\"",
+              vm
+            );
+          });
+        }
+      });
+      toggleObserving(true);
     }
-    return defaultStrat(parent, child)
-  };
-}
+  }
 
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
+  function resolveInject (inject, vm) {
+    if (inject) {
+      // inject is :any because flow is not smart enough to figure out cached
+      var result = Object.create(null);
+      var keys = hasSymbol
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
+        : Object.keys(inject);
+
+      for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        var provideKey = inject[key].from;
+        var source = vm;
+        while (source) {
+          if (source._provided && hasOwn(source._provided, provideKey)) {
+            result[key] = source._provided[provideKey];
+            break
+          }
+          source = source.$parent;
+        }
+        if (!source) {
+          if ('default' in inject[key]) {
+            var provideDefault = inject[key].default;
+            result[key] = typeof provideDefault === 'function'
+              ? provideDefault.call(vm)
+              : provideDefault;
+          } else {
+            warn(("Injection \"" + key + "\" not found"), vm);
+          }
+        }
+      }
+      return result
     }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
+  }
+
+  /*  */
+
+  /**
+   * Runtime helper for rendering v-for lists.
+   */
+  function renderList (
+    val,
+    render
+  ) {
+    var ret, i, l, keys, key;
+    if (Array.isArray(val) || typeof val === 'string') {
+      ret = new Array(val.length);
+      for (i = 0, l = val.length; i < l; i++) {
+        ret[i] = render(val[i], i);
+      }
+    } else if (typeof val === 'number') {
+      ret = new Array(val);
+      for (i = 0; i < val; i++) {
+        ret[i] = render(i + 1, i);
+      }
+    } else if (isObject(val)) {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
       }
     }
+    if (isDef(ret)) {
+      (ret)._isVList = true;
+    }
+    return ret
   }
-}
 
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      "development" !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
+  /*  */
+
+  /**
+   * Runtime helper for rendering <slot>
+   */
+  function renderSlot (
+    name,
+    fallback,
+    props,
+    bindObject
+  ) {
+    var scopedSlotFn = this.$scopedSlots[name];
+    var nodes;
+    if (scopedSlotFn) { // scoped slot
+      props = props || {};
+      if (bindObject) {
+        if (!isObject(bindObject)) {
+          warn(
+            'slot v-bind without argument expects an Object',
+            this
+          );
+        }
+        props = extend(extend({}, bindObject), props);
+      }
+      nodes = scopedSlotFn(props) || fallback;
+    } else {
+      nodes = this.$slots[name] || fallback;
+    }
 
-      return parentVal
+    var target = props && props.slot;
+    if (target) {
+      return this.$createElement('template', { slot: target }, nodes)
+    } else {
+      return nodes
     }
-    return mergeDataOrFn(parentVal, childVal)
   }
 
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
+  /*  */
 
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    "development" !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
+  /**
+   * Runtime helper for resolving filters
+   */
+  function resolveFilter (id) {
+    return resolveAsset(this.$options, 'filters', id, true) || identity
   }
-}
 
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
+  /*  */
 
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
+  function isKeyNotMatch (expect, actual) {
+    if (Array.isArray(expect)) {
+      return expect.indexOf(actual) === -1
+    } else {
+      return expect !== actual
+    }
   }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
+
+  /**
+   * Runtime helper for checking keyCodes from config.
+   * exposed as Vue.prototype._k
+   * passing in eventKeyName as last argument separately for backwards compat
+   */
+  function checkKeyCodes (
+    eventKeyCode,
+    key,
+    builtInKeyCode,
+    eventKeyName,
+    builtInKeyName
+  ) {
+    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+      return isKeyNotMatch(builtInKeyName, eventKeyName)
+    } else if (mappedKeyCode) {
+      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+    } else if (eventKeyName) {
+      return hyphenate(eventKeyName) !== key
+    }
   }
-}
 
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
+  /*  */
+
+  /**
+   * Runtime helper for merging v-bind="object" into a VNode's data.
+   */
+  function bindObjectProps (
+    data,
+    tag,
+    value,
+    asProp,
+    isSync
+  ) {
+    if (value) {
+      if (!isObject(value)) {
+        warn(
+          'v-bind without argument expects an Object or Array value',
+          this
+        );
       } else {
-        warn('props must be strings when using array syntax.');
+        if (Array.isArray(value)) {
+          value = toObject(value);
+        }
+        var hash;
+        var loop = function ( key ) {
+          if (
+            key === 'class' ||
+            key === 'style' ||
+            isReservedAttribute(key)
+          ) {
+            hash = data;
+          } else {
+            var type = data.attrs && data.attrs.type;
+            hash = asProp || config.mustUseProp(tag, type, key)
+              ? data.domProps || (data.domProps = {})
+              : data.attrs || (data.attrs = {});
+          }
+          var camelizedKey = camelize(key);
+          if (!(key in hash) && !(camelizedKey in hash)) {
+            hash[key] = value[key];
+
+            if (isSync) {
+              var on = data.on || (data.on = {});
+              on[("update:" + camelizedKey)] = function ($event) {
+                value[key] = $event;
+              };
+            }
+          }
+        };
+
+        for (var key in value) loop( key );
       }
     }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
+    return data
   }
-  options.props = res;
-}
 
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
+  /*  */
+
+  /**
+   * Runtime helper for rendering static trees.
+   */
+  function renderStatic (
+    index,
+    isInFor
+  ) {
+    var cached = this._staticTrees || (this._staticTrees = []);
+    var tree = cached[index];
+    // if has already-rendered static tree and not inside v-for,
+    // we can reuse the same tree.
+    if (tree && !isInFor) {
+      return tree
+    }
+    // otherwise, render a fresh tree.
+    tree = cached[index] = this.$options.staticRenderFns[index].call(
+      this._renderProxy,
+      null,
+      this // for render fns generated for functional component templates
     );
+    markStatic(tree, ("__static__" + index), false);
+    return tree
   }
-}
 
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
+  /**
+   * Runtime helper for v-once.
+   * Effectively it means marking the node as static with a unique key.
+   */
+  function markOnce (
+    tree,
+    index,
+    key
+  ) {
+    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+    return tree
+  }
+
+  function markStatic (
+    tree,
+    key,
+    isOnce
+  ) {
+    if (Array.isArray(tree)) {
+      for (var i = 0; i < tree.length; i++) {
+        if (tree[i] && typeof tree[i] !== 'string') {
+          markStaticNode(tree[i], (key + "_" + i), isOnce);
+        }
       }
+    } else {
+      markStaticNode(tree, key, isOnce);
     }
   }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
 
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  {
-    checkComponents(child);
+  function markStaticNode (node, key, isOnce) {
+    node.isStatic = true;
+    node.key = key;
+    node.isOnce = isOnce;
   }
 
-  if (typeof child === 'function') {
-    child = child.options;
-  }
+  /*  */
 
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  function bindObjectListeners (data, value) {
+    if (value) {
+      if (!isPlainObject(value)) {
+        warn(
+          'v-on without argument expects an Object value',
+          this
+        );
+      } else {
+        var on = data.on = data.on ? extend({}, data.on) : {};
+        for (var key in value) {
+          var existing = on[key];
+          var ours = value[key];
+          on[key] = existing ? [].concat(existing, ours) : ours;
+        }
+      }
     }
+    return data
   }
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
+
+  /*  */
+
+  function installRenderHelpers (target) {
+    target._o = markOnce;
+    target._n = toNumber;
+    target._s = toString;
+    target._l = renderList;
+    target._t = renderSlot;
+    target._q = looseEqual;
+    target._i = looseIndexOf;
+    target._m = renderStatic;
+    target._f = resolveFilter;
+    target._k = checkKeyCodes;
+    target._b = bindObjectProps;
+    target._v = createTextVNode;
+    target._e = createEmptyVNode;
+    target._u = resolveScopedSlots;
+    target._g = bindObjectListeners;
   }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
+
+  /*  */
+
+  function FunctionalRenderContext (
+    data,
+    props,
+    children,
+    parent,
+    Ctor
+  ) {
+    var options = Ctor.options;
+    // ensure the createElement function in functional components
+    // gets a unique context - this is necessary for correct named slot check
+    var contextVm;
+    if (hasOwn(parent, '_uid')) {
+      contextVm = Object.create(parent);
+      // $flow-disable-line
+      contextVm._original = parent;
+    } else {
+      // the context vm passed in is a functional context as well.
+      // in this case we want to make sure we are able to get a hold to the
+      // real context instance.
+      contextVm = parent;
+      // $flow-disable-line
+      parent = parent._original;
+    }
+    var isCompiled = isTrue(options._compiled);
+    var needNormalization = !isCompiled;
+
+    this.data = data;
+    this.props = props;
+    this.children = children;
+    this.parent = parent;
+    this.listeners = data.on || emptyObject;
+    this.injections = resolveInject(options.inject, parent);
+    this.slots = function () { return resolveSlots(children, parent); };
+
+    // support for compiled functional template
+    if (isCompiled) {
+      // exposing $options for renderStatic()
+      this.$options = options;
+      // pre-resolve slots for renderSlot()
+      this.$slots = this.slots();
+      this.$scopedSlots = data.scopedSlots || emptyObject;
+    }
+
+    if (options._scopeId) {
+      this._c = function (a, b, c, d) {
+        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+        if (vnode && !Array.isArray(vnode)) {
+          vnode.fnScopeId = options._scopeId;
+          vnode.fnContext = parent;
+        }
+        return vnode
+      };
+    } else {
+      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
     }
   }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
 
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if ("development" !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
+  installRenderHelpers(FunctionalRenderContext.prototype);
 
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if ("development" !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
+  function createFunctionalComponent (
+    Ctor,
+    propsData,
+    data,
+    contextVm,
+    children
   ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
+    var options = Ctor.options;
+    var props = {};
+    var propOptions = options.props;
+    if (isDef(propOptions)) {
+      for (var key in propOptions) {
+        props[key] = validateProp(key, propOptions, propsData || emptyObject);
+      }
+    } else {
+      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+      if (isDef(data.props)) { mergeProps(props, data.props); }
+    }
 
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
+    var renderContext = new FunctionalRenderContext(
+      data,
+      props,
+      children,
+      contextVm,
+      Ctor
     );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
+
+    var vnode = options.render.call(null, renderContext._c, renderContext);
+
+    if (vnode instanceof VNode) {
+      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+    } else if (Array.isArray(vnode)) {
+      var vnodes = normalizeChildren(vnode) || [];
+      var res = new Array(vnodes.length);
+      for (var i = 0; i < vnodes.length; i++) {
+        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+      }
+      return res
+    }
   }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
+
+  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+    // #7817 clone node before setting fnContext, otherwise if the node is reused
+    // (e.g. it was from a cached normal slot) the fnContext causes named slots
+    // that should not be matched to match.
+    var clone = cloneVNode(vnode);
+    clone.fnContext = contextVm;
+    clone.fnOptions = options;
+    {
+      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
     }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
+    if (data.slot) {
+      (clone.data || (clone.data = {})).slot = data.slot;
     }
+    return clone
   }
-  if (!valid) {
-    warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
-      vm
-    );
-    return
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
+
+  function mergeProps (to, from) {
+    for (var key in from) {
+      to[camelize(key)] = from[key];
     }
   }
-}
 
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+  /*  */
 
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
+  /*  */
 
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
+  /*  */
 
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
+  /*  */
 
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
+  // inline hooks to be invoked on component VNodes during patch
+  var componentVNodeHooks = {
+    init: function init (vnode, hydrating) {
+      if (
+        vnode.componentInstance &&
+        !vnode.componentInstance._isDestroyed &&
+        vnode.data.keepAlive
+      ) {
+        // kept-alive components, treat as a patch
+        var mountedNode = vnode; // work around flow
+        componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      } else {
+        var child = vnode.componentInstance = createComponentInstanceForVnode(
+          vnode,
+          activeInstance
+        );
+        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+      }
+    },
 
-/*  */
+    prepatch: function prepatch (oldVnode, vnode) {
+      var options = vnode.componentOptions;
+      var child = vnode.componentInstance = oldVnode.componentInstance;
+      updateChildComponent(
+        child,
+        options.propsData, // updated props
+        options.listeners, // updated listeners
+        vnode, // new parent vnode
+        options.children // new children
+      );
+    },
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
+    insert: function insert (vnode) {
+      var context = vnode.context;
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isMounted) {
+        componentInstance._isMounted = true;
+        callHook(componentInstance, 'mounted');
+      }
+      if (vnode.data.keepAlive) {
+        if (context._isMounted) {
+          // vue-router#1212
+          // During updates, a kept-alive component's child components may
+          // change, so directly walking the tree here may call activated hooks
+          // on incorrect children. Instead we push them into a queue which will
+          // be processed after the whole patch process ended.
+          queueActivatedComponent(componentInstance);
+        } else {
+          activateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    },
+
+    destroy: function destroy (vnode) {
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isDestroyed) {
+        if (!vnode.data.keepAlive) {
+          componentInstance.$destroy();
+        } else {
+          deactivateChildComponent(componentInstance, true /* direct */);
         }
       }
     }
-  }
-  globalHandleError(err, vm, info);
-}
+  };
 
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
+  var hooksToMerge = Object.keys(componentVNodeHooks);
+
+  function createComponent (
+    Ctor,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    if (isUndef(Ctor)) {
+      return
     }
-  }
-  logError(err, vm, info);
-}
 
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
-  })
-}
+    var baseCtor = context.$options._base;
 
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
+    // plain options object: turn it into a constructor
+    if (isObject(Ctor)) {
+      Ctor = baseCtor.extend(Ctor);
     }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
+
+    // if at this stage it's not a constructor or an async component factory,
+    // reject.
+    if (typeof Ctor !== 'function') {
+      {
+        warn(("Invalid Component definition: " + (String(Ctor))), context);
+      }
+      return
     }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
 
-/*  */
+    // async component
+    var asyncFactory;
+    if (isUndef(Ctor.cid)) {
+      asyncFactory = Ctor;
+      Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+      if (Ctor === undefined) {
+        // return a placeholder node for async component, which is rendered
+        // as a comment node but preserves all the raw information for the node.
+        // the information will be used for async server-rendering and hydration.
+        return createAsyncPlaceholder(
+          asyncFactory,
+          data,
+          context,
+          children,
+          tag
+        )
+      }
+    }
 
-var mark;
-var measure;
+    data = data || {};
 
-{
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
+    // resolve constructor options in case global mixins are applied after
+    // component constructor creation
+    resolveConstructorOptions(Ctor);
 
-/* not type checking this file because flow doesn't play well with Proxy */
+    // transform component v-model data into props & events
+    if (isDef(data.model)) {
+      transformModel(Ctor.options, data);
+    }
 
-var initProxy;
+    // extract props
+    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
 
-{
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
+    // functional component
+    if (isTrue(Ctor.options.functional)) {
+      return createFunctionalComponent(Ctor, propsData, data, context, children)
+    }
 
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
+    // extract listeners, since these needs to be treated as
+    // child component listeners instead of DOM listeners
+    var listeners = data.on;
+    // replace with listeners with .native modifier
+    // so it gets processed during parent component patch.
+    data.on = data.nativeOn;
 
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
+    if (isTrue(Ctor.options.abstract)) {
+      // abstract components do not keep anything
+      // other than props & listeners & slot
 
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
+      // work around flow
+      var slot = data.slot;
+      data = {};
+      if (slot) {
+        data.slot = slot;
       }
-    });
+    }
+
+    // install component management hooks onto the placeholder node
+    installComponentHooks(data);
+
+    // return a placeholder vnode
+    var name = Ctor.options.name || tag;
+    var vnode = new VNode(
+      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+      data, undefined, undefined, undefined, context,
+      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+      asyncFactory
+    );
+
+    return vnode
   }
 
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
-      if (!has && !isAllowed) {
-        warnNonPresent(target, key);
-      }
-      return has || !isAllowed
+  function createComponentInstanceForVnode (
+    vnode, // we know it's MountedComponentVNode but flow doesn't
+    parent // activeInstance in lifecycle state
+  ) {
+    var options = {
+      _isComponent: true,
+      _parentVnode: vnode,
+      parent: parent
+    };
+    // check inline-template render functions
+    var inlineTemplate = vnode.data.inlineTemplate;
+    if (isDef(inlineTemplate)) {
+      options.render = inlineTemplate.render;
+      options.staticRenderFns = inlineTemplate.staticRenderFns;
     }
-  };
+    return new vnode.componentOptions.Ctor(options)
+  }
 
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+  function installComponentHooks (data) {
+    var hooks = data.hook || (data.hook = {});
+    for (var i = 0; i < hooksToMerge.length; i++) {
+      var key = hooksToMerge[i];
+      var existing = hooks[key];
+      var toMerge = componentVNodeHooks[key];
+      if (existing !== toMerge && !(existing && existing._merged)) {
+        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
       }
-      return target[key]
     }
-  };
+  }
 
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
+  function mergeHook$1 (f1, f2) {
+    var merged = function (a, b) {
+      // flow complains about extra args which is why we use any
+      f1(a, b);
+      f2(a, b);
+    };
+    merged._merged = true;
+    return merged
+  }
+
+  // transform component v-model info (value and callback) into
+  // prop and event handler respectively.
+  function transformModel (options, data) {
+    var prop = (options.model && options.model.prop) || 'value';
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.props || (data.props = {}))[prop] = data.model.value;
+    var on = data.on || (data.on = {});
+    var existing = on[event];
+    var callback = data.model.callback;
+    if (isDef(existing)) {
+      if (
+        Array.isArray(existing)
+          ? existing.indexOf(callback) === -1
+          : existing !== callback
+      ) {
+        on[event] = [callback].concat(existing);
+      }
     } else {
-      vm._renderProxy = vm;
+      on[event] = callback;
     }
-  };
-}
+  }
 
-/*  */
+  /*  */
 
-var seenObjects = new _Set();
+  var SIMPLE_NORMALIZE = 1;
+  var ALWAYS_NORMALIZE = 2;
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
+  // wrapper function for providing a more flexible interface
+  // without getting yelled at by flow
+  function createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType,
+    alwaysNormalize
+  ) {
+    if (Array.isArray(data) || isPrimitive(data)) {
+      normalizationType = children;
+      children = data;
+      data = undefined;
+    }
+    if (isTrue(alwaysNormalize)) {
+      normalizationType = ALWAYS_NORMALIZE;
     }
-    seen.add(depId);
+    return _createElement(context, tag, data, children, normalizationType)
   }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
+
+  function _createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType
+  ) {
+    if (isDef(data) && isDef((data).__ob__)) {
+      warn(
+        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+        'Always create fresh vnode data objects in each render!',
+        context
+      );
+      return createEmptyVNode()
+    }
+    // object syntax in v-bind
+    if (isDef(data) && isDef(data.is)) {
+      tag = data.is;
+    }
+    if (!tag) {
+      // in case of component :is set to falsy value
+      return createEmptyVNode()
+    }
+    // warn against non-primitive key
+    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+    ) {
+      {
+        warn(
+          'Avoid using non-primitive value as key, ' +
+          'use string/number value instead.',
+          context
+        );
+      }
+    }
+    // support single function children as default scoped slot
+    if (Array.isArray(children) &&
+      typeof children[0] === 'function'
+    ) {
+      data = data || {};
+      data.scopedSlots = { default: children[0] };
+      children.length = 0;
+    }
+    if (normalizationType === ALWAYS_NORMALIZE) {
+      children = normalizeChildren(children);
+    } else if (normalizationType === SIMPLE_NORMALIZE) {
+      children = simpleNormalizeChildren(children);
+    }
+    var vnode, ns;
+    if (typeof tag === 'string') {
+      var Ctor;
+      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+      if (config.isReservedTag(tag)) {
+        // platform built-in elements
+        vnode = new VNode(
+          config.parsePlatformTagName(tag), data, children,
+          undefined, undefined, context
+        );
+      } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+        // component
+        vnode = createComponent(Ctor, data, context, children, tag);
+      } else {
+        // unknown or unlisted namespaced elements
+        // check at runtime because it may get assigned a namespace when its
+        // parent normalizes children
+        vnode = new VNode(
+          tag, data, children,
+          undefined, undefined, context
+        );
       }
     } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  vm
-) {
-  var name, def, cur, old, event;
-  for (name in on) {
-    def = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    /* istanbul ignore if */
-    if (isUndef(cur)) {
-      "development" !== 'production' && warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
+      // direct component options / constructor
+      vnode = createComponent(tag, data, context, children);
+    }
+    if (Array.isArray(vnode)) {
+      return vnode
+    } else if (isDef(vnode)) {
+      if (isDef(ns)) { applyNS(vnode, ns); }
+      if (isDef(data)) { registerDeepBindings(data); }
+      return vnode
+    } else {
+      return createEmptyVNode()
+    }
+  }
+
+  function applyNS (vnode, ns, force) {
+    vnode.ns = ns;
+    if (vnode.tag === 'foreignObject') {
+      // use default namespace inside foreignObject
+      ns = undefined;
+      force = true;
+    }
+    if (isDef(vnode.children)) {
+      for (var i = 0, l = vnode.children.length; i < l; i++) {
+        var child = vnode.children[i];
+        if (isDef(child.tag) && (
+          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+          applyNS(child, ns, force);
+        }
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
     }
   }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
+
+  // ref #5318
+  // necessary to ensure parent re-render when deep bindings like :style and
+  // :class are used on slot nodes
+  function registerDeepBindings (data) {
+    if (isObject(data.style)) {
+      traverse(data.style);
+    }
+    if (isObject(data.class)) {
+      traverse(data.class);
     }
   }
-}
 
-/*  */
+  /*  */
 
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  var invoker;
-  var oldHook = def[hookKey];
+  function initRender (vm) {
+    vm._vnode = null; // the root of the child tree
+    vm._staticTrees = null; // v-once cached trees
+    var options = vm.$options;
+    var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+    var renderContext = parentVnode && parentVnode.context;
+    vm.$slots = resolveSlots(options._renderChildren, renderContext);
+    vm.$scopedSlots = emptyObject;
+    // bind the createElement fn to this instance
+    // so that we get proper render context inside it.
+    // args order: tag, data, children, normalizationType, alwaysNormalize
+    // internal version is used by render functions compiled from templates
+    vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+    // normalization is always applied for the public version, used in
+    // user-written render functions.
+    vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
 
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
+    // $attrs & $listeners are exposed for easier HOC creation.
+    // they need to be reactive so that HOCs using them are always updated
+    var parentData = parentVnode && parentVnode.data;
 
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
+    /* istanbul ignore else */
+    {
+      defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+      }, true);
+      defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+      }, true);
     }
   }
-  return res
-}
 
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
+  function renderMixin (Vue) {
+    // install runtime convenience helpers
+    installRenderHelpers(Vue.prototype);
+
+    Vue.prototype.$nextTick = function (fn) {
+      return nextTick(fn, this)
+    };
+
+    Vue.prototype._render = function () {
+      var vm = this;
+      var ref = vm.$options;
+      var render = ref.render;
+      var _parentVnode = ref._parentVnode;
+
+      if (_parentVnode) {
+        vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
       }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
+
+      // set parent vnode. this allows render functions to have access
+      // to the data on the placeholder node.
+      vm.$vnode = _parentVnode;
+      // render self
+      var vnode;
+      try {
+        vnode = render.call(vm._renderProxy, vm.$createElement);
+      } catch (e) {
+        handleError(e, vm, "render");
+        // return error render result,
+        // or previous vnode to prevent render error causing blank component
+        /* istanbul ignore else */
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
       }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
+      // return empty vnode in case the render function errored out
+      if (!(vnode instanceof VNode)) {
+        if (Array.isArray(vnode)) {
+          warn(
+            'Multiple root nodes returned from render function. Render function ' +
+            'should return a single root node.',
+            vm
+          );
         }
-        res.push(c);
+        vnode = createEmptyVNode();
       }
-    }
+      // set parent
+      vnode.parent = _parentVnode;
+      return vnode
+    };
   }
-  return res
-}
 
-/*  */
+  /*  */
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
+  var uid$3 = 0;
+
+  function initMixin (Vue) {
+    Vue.prototype._init = function (options) {
+      var vm = this;
+      // a uid
+      vm._uid = uid$3++;
 
-    var forceRender = function () {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
+      var startTag, endTag;
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        startTag = "vue-perf-start:" + (vm._uid);
+        endTag = "vue-perf-end:" + (vm._uid);
+        mark(startTag);
+      }
+
+      // a flag to avoid this being observed
+      vm._isVue = true;
+      // merge options
+      if (options && options._isComponent) {
+        // optimize internal component instantiation
+        // since dynamic options merging is pretty slow, and none of the
+        // internal component options needs special treatment.
+        initInternalComponent(vm, options);
+      } else {
+        vm.$options = mergeOptions(
+          resolveConstructorOptions(vm.constructor),
+          options || {},
+          vm
+        );
       }
-    };
+      /* istanbul ignore else */
+      {
+        initProxy(vm);
+      }
+      // expose real self
+      vm._self = vm;
+      initLifecycle(vm);
+      initEvents(vm);
+      initRender(vm);
+      callHook(vm, 'beforeCreate');
+      initInjections(vm); // resolve injections before data/props
+      initState(vm);
+      initProvide(vm); // resolve provide after data/props
+      callHook(vm, 'created');
 
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender();
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        vm._name = formatComponentName(vm, false);
+        mark(endTag);
+        measure(("vue " + (vm._name) + " init"), startTag, endTag);
       }
-    });
 
-    var reject = once(function (reason) {
-      "development" !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender();
+      if (vm.$options.el) {
+        vm.$mount(vm.$options.el);
       }
-    });
-
-    var res = factory(resolve, reject);
+    };
+  }
 
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
+  function initInternalComponent (vm, options) {
+    var opts = vm.$options = Object.create(vm.constructor.options);
+    // doing this because it's faster than dynamic enumeration.
+    var parentVnode = options._parentVnode;
+    opts.parent = options.parent;
+    opts._parentVnode = parentVnode;
+
+    var vnodeComponentOptions = parentVnode.componentOptions;
+    opts.propsData = vnodeComponentOptions.propsData;
+    opts._parentListeners = vnodeComponentOptions.listeners;
+    opts._renderChildren = vnodeComponentOptions.children;
+    opts._componentTag = vnodeComponentOptions.tag;
+
+    if (options.render) {
+      opts.render = options.render;
+      opts.staticRenderFns = options.staticRenderFns;
+    }
+  }
+
+  function resolveConstructorOptions (Ctor) {
+    var options = Ctor.options;
+    if (Ctor.super) {
+      var superOptions = resolveConstructorOptions(Ctor.super);
+      var cachedSuperOptions = Ctor.superOptions;
+      if (superOptions !== cachedSuperOptions) {
+        // super option changed,
+        // need to resolve new options.
+        Ctor.superOptions = superOptions;
+        // check if there are any late-modified/attached options (#4976)
+        var modifiedOptions = resolveModifiedOptions(Ctor);
+        // update base extend options
+        if (modifiedOptions) {
+          extend(Ctor.extendOptions, modifiedOptions);
         }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
+        options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+        if (options.name) {
+          options.components[options.name] = Ctor;
         }
+      }
+    }
+    return options
+  }
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender();
-              }
-            }, res.delay || 200);
-          }
-        }
+  function resolveModifiedOptions (Ctor) {
+    var modified;
+    var latest = Ctor.options;
+    var extended = Ctor.extendOptions;
+    var sealed = Ctor.sealedOptions;
+    for (var key in latest) {
+      if (latest[key] !== sealed[key]) {
+        if (!modified) { modified = {}; }
+        modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      }
+    }
+    return modified
+  }
 
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
-            }
-          }, res.timeout);
+  function dedupe (latest, extended, sealed) {
+    // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+    // between merges
+    if (Array.isArray(latest)) {
+      var res = [];
+      sealed = Array.isArray(sealed) ? sealed : [sealed];
+      extended = Array.isArray(extended) ? extended : [extended];
+      for (var i = 0; i < latest.length; i++) {
+        // push original options and not sealed options to exclude duplicated options
+        if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+          res.push(latest[i]);
         }
       }
+      return res
+    } else {
+      return latest
     }
+  }
 
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+  function Vue (options) {
+    if (!(this instanceof Vue)
+    ) {
+      warn('Vue is a constructor and should be called with the `new` keyword');
+    }
+    this._init(options);
   }
-}
 
-/*  */
+  initMixin(Vue);
+  stateMixin(Vue);
+  eventsMixin(Vue);
+  lifecycleMixin(Vue);
+  renderMixin(Vue);
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
+  /*  */
 
-/*  */
+  function initUse (Vue) {
+    Vue.use = function (plugin) {
+      var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+      if (installedPlugins.indexOf(plugin) > -1) {
+        return this
+      }
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
+      // additional parameters
+      var args = toArray(arguments, 1);
+      args.unshift(this);
+      if (typeof plugin.install === 'function') {
+        plugin.install.apply(plugin, args);
+      } else if (typeof plugin === 'function') {
+        plugin.apply(null, args);
       }
-    }
+      installedPlugins.push(plugin);
+      return this
+    };
   }
-}
-
-/*  */
 
-/*  */
+  /*  */
 
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
+  function initMixin$1 (Vue) {
+    Vue.mixin = function (mixin) {
+      this.options = mergeOptions(this.options, mixin);
+      return this
+    };
   }
-}
 
-var target;
+  /*  */
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
-}
+  function initExtend (Vue) {
+    /**
+     * Each instance constructor, including Vue, has a unique
+     * cid. This enables us to create wrapped "child
+     * constructors" for prototypal inheritance and cache them.
+     */
+    Vue.cid = 0;
+    var cid = 1;
 
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
+    /**
+     * Class inheritance
+     */
+    Vue.extend = function (extendOptions) {
+      extendOptions = extendOptions || {};
+      var Super = this;
+      var SuperId = Super.cid;
+      var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+      if (cachedCtors[SuperId]) {
+        return cachedCtors[SuperId]
+      }
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
-  target = undefined;
-}
+      var name = extendOptions.name || Super.options.name;
+      if (name) {
+        validateComponentName(name);
+      }
 
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
+      var Sub = function VueComponent (options) {
+        this._init(options);
+      };
+      Sub.prototype = Object.create(Super.prototype);
+      Sub.prototype.constructor = Sub;
+      Sub.cid = cid++;
+      Sub.options = mergeOptions(
+        Super.options,
+        extendOptions
+      );
+      Sub['super'] = Super;
 
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+      // For props and computed properties, we define the proxy getters on
+      // the Vue instances at extension time, on the extended prototype. This
+      // avoids Object.defineProperty calls for each instance created.
+      if (Sub.options.props) {
+        initProps$1(Sub);
       }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
+      if (Sub.options.computed) {
+        initComputed$1(Sub);
       }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
 
-  Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
+      // allow further extension/mixin/plugin usage
+      Sub.extend = Super.extend;
+      Sub.mixin = Super.mixin;
+      Sub.use = Super.use;
 
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
+      // create asset registers, so extended classes
+      // can have their private assets too.
+      ASSET_TYPES.forEach(function (type) {
+        Sub[type] = Super[type];
+      });
+      // enable recursive self-lookup
+      if (name) {
+        Sub.options.components[name] = Sub;
       }
+
+      // keep a reference to the super options at extension time.
+      // later at instantiation we can check if Super's options have
+      // been updated.
+      Sub.superOptions = Super.options;
+      Sub.extendOptions = extendOptions;
+      Sub.sealedOptions = extend({}, Sub.options);
+
+      // cache constructor
+      cachedCtors[SuperId] = Sub;
+      return Sub
+    };
+  }
+
+  function initProps$1 (Comp) {
+    var props = Comp.options.props;
+    for (var key in props) {
+      proxy(Comp.prototype, "_props", key);
     }
-    return vm
-  };
+  }
 
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
-      }
+  function initComputed$1 (Comp) {
+    var computed = Comp.options.computed;
+    for (var key in computed) {
+      defineComputed(Comp.prototype, key, computed[key]);
     }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
+  }
+
+  /*  */
+
+  function initAssetRegisters (Vue) {
+    /**
+     * Create asset registration methods.
+     */
+    ASSET_TYPES.forEach(function (type) {
+      Vue[type] = function (
+        id,
+        definition
+      ) {
+        if (!definition) {
+          return this.options[type + 's'][id]
+        } else {
+          /* istanbul ignore if */
+          if (type === 'component') {
+            validateComponentName(id);
+          }
+          if (type === 'component' && isPlainObject(definition)) {
+            definition.name = definition.name || id;
+            definition = this.options._base.extend(definition);
+          }
+          if (type === 'directive' && typeof definition === 'function') {
+            definition = { bind: definition, update: definition };
+          }
+          this.options[type + 's'][id] = definition;
+          return definition
         }
-      }
-    }
-    return vm
-  };
-}
+      };
+    });
+  }
 
-/*  */
+  /*  */
 
 
 
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
+  function getComponentName (opts) {
+    return opts && (opts.Ctor.options.name || opts.tag)
   }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
+
+  function matches (pattern, name) {
+    if (Array.isArray(pattern)) {
+      return pattern.indexOf(name) > -1
+    } else if (typeof pattern === 'string') {
+      return pattern.split(',').indexOf(name) > -1
+    } else if (isRegExp(pattern)) {
+      return pattern.test(name)
     }
+    /* istanbul ignore next */
+    return false
   }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
+
+  function pruneCache (keepAliveInstance, filter) {
+    var cache = keepAliveInstance.cache;
+    var keys = keepAliveInstance.keys;
+    var _vnode = keepAliveInstance._vnode;
+    for (var key in cache) {
+      var cachedNode = cache[key];
+      if (cachedNode) {
+        var name = getComponentName(cachedNode.componentOptions);
+        if (name && !filter(name)) {
+          pruneCacheEntry(cache, key, keys, _vnode);
+        }
+      }
     }
   }
-  return slots
-}
 
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
+  function pruneCacheEntry (
+    cache,
+    key,
+    keys,
+    current
+  ) {
+    var cached$$1 = cache[key];
+    if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+      cached$$1.componentInstance.$destroy();
     }
+    cache[key] = null;
+    remove(keys, key);
   }
-  return res
-}
 
-/*  */
+  var patternTypes = [String, RegExp, Array];
 
-var activeInstance = null;
-var isUpdatingChildComponent = false;
+  var KeepAlive = {
+    name: 'keep-alive',
+    abstract: true,
 
-function initLifecycle (vm) {
-  var options = vm.$options;
+    props: {
+      include: patternTypes,
+      exclude: patternTypes,
+      max: [String, Number]
+    },
 
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
+    created: function created () {
+      this.cache = Object.create(null);
+      this.keys = [];
+    },
 
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
+    destroyed: function destroyed () {
+      for (var key in this.cache) {
+        pruneCacheEntry(this.cache, key, this.keys);
+      }
+    },
 
-  vm.$children = [];
-  vm.$refs = {};
+    mounted: function mounted () {
+      var this$1 = this;
 
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
+      this.$watch('include', function (val) {
+        pruneCache(this$1, function (name) { return matches(val, name); });
+      });
+      this.$watch('exclude', function (val) {
+        pruneCache(this$1, function (name) { return !matches(val, name); });
+      });
+    },
 
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    activeInstance = prevActiveInstance;
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
+    render: function render () {
+      var slot = this.$slots.default;
+      var vnode = getFirstComponentChild(slot);
+      var componentOptions = vnode && vnode.componentOptions;
+      if (componentOptions) {
+        // check pattern
+        var name = getComponentName(componentOptions);
+        var ref = this;
+        var include = ref.include;
+        var exclude = ref.exclude;
+        if (
+          // not included
+          (include && (!name || !matches(include, name))) ||
+          // excluded
+          (exclude && name && matches(exclude, name))
+        ) {
+          return vnode
+        }
+
+        var ref$1 = this;
+        var cache = ref$1.cache;
+        var keys = ref$1.keys;
+        var key = vnode.key == null
+          // same constructor may get registered as different local components
+          // so cid alone is not enough (#3269)
+          ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+          : vnode.key;
+        if (cache[key]) {
+          vnode.componentInstance = cache[key].componentInstance;
+          // make current key freshest
+          remove(keys, key);
+          keys.push(key);
+        } else {
+          cache[key] = vnode;
+          keys.push(key);
+          // prune oldest entry
+          if (this.max && keys.length > parseInt(this.max)) {
+            pruneCacheEntry(cache, keys[0], keys, this._vnode);
+          }
+        }
 
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
+        vnode.data.keepAlive = true;
+      }
+      return vnode || (slot && slot[0])
     }
   };
 
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
+  var builtInComponents = {
+    KeepAlive: KeepAlive
   };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
+
+  /*  */
+
+  function initGlobalAPI (Vue) {
+    // config
+    var configDef = {};
+    configDef.get = function () { return config; };
     {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
+      configDef.set = function () {
         warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
+          'Do not replace the Vue.config object, set individual fields instead.'
         );
-      }
+      };
     }
-  }
-  callHook(vm, 'beforeMount');
+    Object.defineProperty(Vue, 'config', configDef);
 
-  var updateComponent;
-  /* istanbul ignore if */
-  if ("development" !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
+    // exposed util methods.
+    // NOTE: these are not considered part of the public API - avoid relying on
+    // them unless you are aware of the risk.
+    Vue.util = {
+      warn: warn,
+      extend: extend,
+      mergeOptions: mergeOptions,
+      defineReactive: defineReactive$$1
     };
+
+    Vue.set = set;
+    Vue.delete = del;
+    Vue.nextTick = nextTick;
+
+    Vue.options = Object.create(null);
+    ASSET_TYPES.forEach(function (type) {
+      Vue.options[type + 's'] = Object.create(null);
+    });
+
+    // this is used to identify the "base" constructor to extend all plain-object
+    // components with in Weex's multi-instance scenarios.
+    Vue.options._base = Vue;
+
+    extend(Vue.options.components, builtInComponents);
+
+    initUse(Vue);
+    initMixin$1(Vue);
+    initExtend(Vue);
+    initAssetRegisters(Vue);
   }
 
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted) {
-        callHook(vm, 'beforeUpdate');
-      }
+  initGlobalAPI(Vue);
+
+  Object.defineProperty(Vue.prototype, '$isServer', {
+    get: isServerRendering
+  });
+
+  Object.defineProperty(Vue.prototype, '$ssrContext', {
+    get: function get () {
+      /* istanbul ignore next */
+      return this.$vnode && this.$vnode.ssrContext
     }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
+  });
 
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
+  // expose FunctionalRenderContext for ssr runtime helper installation
+  Object.defineProperty(Vue, 'FunctionalRenderContext', {
+    value: FunctionalRenderContext
+  });
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  {
-    isUpdatingChildComponent = true;
-  }
+  Vue.version = '2.5.18-beta.0';
+
+  /*  */
+
+  // these are reserved for web because they are directly compiled away
+  // during template compilation
+  var isReservedAttr = makeMap('style,class');
+
+  // attributes that should be using props for binding
+  var acceptValue = makeMap('input,textarea,option,select,progress');
+  var mustUseProp = function (tag, type, attr) {
+    return (
+      (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+      (attr === 'selected' && tag === 'option') ||
+      (attr === 'checked' && tag === 'input') ||
+      (attr === 'muted' && tag === 'video')
+    )
+  };
+
+  var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
+  var isBooleanAttr = makeMap(
+    'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+    'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+    'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+    'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+    'required,reversed,scoped,seamless,selected,sortable,translate,' +
+    'truespeed,typemustmatch,visible'
   );
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  var xlinkNS = 'http://www.w3.org/1999/xlink';
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
+  var isXlink = function (name) {
+    return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+  };
+
+  var getXlinkProp = function (name) {
+    return isXlink(name) ? name.slice(6, name.length) : ''
+  };
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+  var isFalsyAttrValue = function (val) {
+    return val == null || val === false
+  };
+
+  /*  */
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
+  function genClassForVnode (vnode) {
+    var data = vnode.data;
+    var parentNode = vnode;
+    var childNode = vnode;
+    while (isDef(childNode.componentInstance)) {
+      childNode = childNode.componentInstance._vnode;
+      if (childNode && childNode.data) {
+        data = mergeClassData(childNode.data, data);
+      }
     }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
+    while (isDef(parentNode = parentNode.parent)) {
+      if (parentNode && parentNode.data) {
+        data = mergeClassData(data, parentNode.data);
+      }
+    }
+    return renderClass(data.staticClass, data.class)
   }
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
-
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
+  function mergeClassData (child, parent) {
+    return {
+      staticClass: concat(child.staticClass, parent.staticClass),
+      class: isDef(child.class)
+        ? [child.class, parent.class]
+        : parent.class
+    }
   }
 
-  {
-    isUpdatingChildComponent = false;
+  function renderClass (
+    staticClass,
+    dynamicClass
+  ) {
+    if (isDef(staticClass) || isDef(dynamicClass)) {
+      return concat(staticClass, stringifyClass(dynamicClass))
+    }
+    /* istanbul ignore next */
+    return ''
   }
-}
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
+  function concat (a, b) {
+    return a ? b ? (a + ' ' + b) : a : (b || '')
   }
-  return false
-}
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
+  function stringifyClass (value) {
+    if (Array.isArray(value)) {
+      return stringifyArray(value)
     }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+    if (isObject(value)) {
+      return stringifyObject(value)
     }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
+    if (typeof value === 'string') {
+      return value
     }
+    /* istanbul ignore next */
+    return ''
   }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
+
+  function stringifyArray (value) {
+    var res = '';
+    var stringified;
+    for (var i = 0, l = value.length; i < l; i++) {
+      if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+        if (res) { res += ' '; }
+        res += stringified;
+      }
     }
-    callHook(vm, 'deactivated');
+    return res
   }
-}
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
+  function stringifyObject (value) {
+    var res = '';
+    for (var key in value) {
+      if (value[key]) {
+        if (res) { res += ' '; }
+        res += key;
       }
     }
+    return res
   }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
 
-/*  */
+  /*  */
+
+  var namespaceMap = {
+    svg: 'http://www.w3.org/2000/svg',
+    math: 'http://www.w3.org/1998/Math/MathML'
+  };
+
+  var isHTMLTag = makeMap(
+    'html,body,base,head,link,meta,style,title,' +
+    'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+    'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+    'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+    's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+    'embed,object,param,source,canvas,script,noscript,del,ins,' +
+    'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+    'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+    'output,progress,select,textarea,' +
+    'details,dialog,menu,menuitem,summary,' +
+    'content,element,shadow,template,blockquote,iframe,tfoot'
+  );
 
+  // this map is intentionally selective, only covering SVG elements that may
+  // contain child elements.
+  var isSVG = makeMap(
+    'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+    'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+    'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+    true
+  );
 
-var MAX_UPDATE_COUNT = 100;
+  var isPreTag = function (tag) { return tag === 'pre'; };
 
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
+  var isReservedTag = function (tag) {
+    return isHTMLTag(tag) || isSVG(tag)
+  };
 
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
+  function getTagNamespace (tag) {
+    if (isSVG(tag)) {
+      return 'svg'
+    }
+    // basic support for MathML
+    // note it doesn't support other MathML elements being component roots
+    if (tag === 'math') {
+      return 'math'
+    }
   }
-  waiting = flushing = false;
-}
 
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if ("development" !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
+  var unknownElementCache = Object.create(null);
+  function isUnknownElement (tag) {
+    /* istanbul ignore if */
+    if (!inBrowser) {
+      return true
+    }
+    if (isReservedTag(tag)) {
+      return false
+    }
+    tag = tag.toLowerCase();
+    /* istanbul ignore if */
+    if (unknownElementCache[tag] != null) {
+      return unknownElementCache[tag]
+    }
+    var el = document.createElement(tag);
+    if (tag.indexOf('-') > -1) {
+      // http://stackoverflow.com/a/28210364/1070244
+      return (unknownElementCache[tag] = (
+        el.constructor === window.HTMLUnknownElement ||
+        el.constructor === window.HTMLElement
+      ))
+    } else {
+      return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+    }
+  }
+
+  var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+  /*  */
+
+  /**
+   * Query an element selector if it's not an element already.
+   */
+  function query (el) {
+    if (typeof el === 'string') {
+      var selected = document.querySelector(el);
+      if (!selected) {
         warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
+          'Cannot find element: ' + el
         );
-        break
+        return document.createElement('div')
       }
+      return selected
+    } else {
+      return el
     }
   }
 
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
+  /*  */
+
+  function createElement$1 (tagName, vnode) {
+    var elm = document.createElement(tagName);
+    if (tagName !== 'select') {
+      return elm
+    }
+    // false or null will remove the attribute but undefined will not
+    if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+      elm.setAttribute('multiple', 'multiple');
+    }
+    return elm
+  }
 
-  resetSchedulerState();
+  function createElementNS (namespace, tagName) {
+    return document.createElementNS(namespaceMap[namespace], tagName)
+  }
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
+  function createTextNode (text) {
+    return document.createTextNode(text)
+  }
 
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
+  function createComment (text) {
+    return document.createComment(text)
   }
-}
 
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
-    }
+  function insertBefore (parentNode, newNode, referenceNode) {
+    parentNode.insertBefore(newNode, referenceNode);
   }
-}
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
-    }
+  function removeChild (node, child) {
+    node.removeChild(child);
   }
-}
 
-/*  */
+  function appendChild (node, child) {
+    node.appendChild(child);
+  }
 
-var uid$1 = 0;
+  function parentNode (node) {
+    return node.parentNode
+  }
 
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.computed = !!options.computed;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.computed = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.computed; // for computed watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = function () {};
-      "development" !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
+  function nextSibling (node) {
+    return node.nextSibling
   }
-  if (this.computed) {
-    this.value = undefined;
-    this.dep = new Dep();
-  } else {
-    this.value = this.get();
+
+  function tagName (node) {
+    return node.tagName
   }
-};
 
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
+  function setTextContent (node, text) {
+    node.textContent = text;
   }
-  return value
-};
 
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
+  function setStyleScope (node, scopeId) {
+    node.setAttribute(scopeId, '');
   }
-};
 
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-    var this$1 = this;
-
-  /* istanbul ignore else */
-  if (this.computed) {
-    // A computed property watcher has two modes: lazy and activated.
-    // It initializes as lazy by default, and only becomes activated when
-    // it is depended on by at least one subscriber, which is typically
-    // another computed property or a component's render function.
-    if (this.dep.subs.length === 0) {
-      // In lazy mode, we don't want to perform computations until necessary,
-      // so we simply mark the watcher as dirty. The actual computation is
-      // performed just-in-time in this.evaluate() when the computed property
-      // is accessed.
-      this.dirty = true;
-    } else {
-      // In activated mode, we want to proactively perform the computation
-      // but only notify our subscribers when the value has indeed changed.
-      this.getAndInvoke(function () {
-        this$1.dep.notify();
-      });
+  var nodeOps = /*#__PURE__*/Object.freeze({
+    createElement: createElement$1,
+    createElementNS: createElementNS,
+    createTextNode: createTextNode,
+    createComment: createComment,
+    insertBefore: insertBefore,
+    removeChild: removeChild,
+    appendChild: appendChild,
+    parentNode: parentNode,
+    nextSibling: nextSibling,
+    tagName: tagName,
+    setTextContent: setTextContent,
+    setStyleScope: setStyleScope
+  });
+
+  /*  */
+
+  var ref = {
+    create: function create (_, vnode) {
+      registerRef(vnode);
+    },
+    update: function update (oldVnode, vnode) {
+      if (oldVnode.data.ref !== vnode.data.ref) {
+        registerRef(oldVnode, true);
+        registerRef(vnode);
+      }
+    },
+    destroy: function destroy (vnode) {
+      registerRef(vnode, true);
     }
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
+  };
 
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    this.getAndInvoke(this.cb);
-  }
-};
-
-Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
-  var value = this.get();
-  if (
-    value !== this.value ||
-    // Deep watchers and watchers on Object/Arrays should fire even
-    // when the value is the same, because the value may
-    // have mutated.
-    isObject(value) ||
-    this.deep
-  ) {
-    // set new value
-    var oldValue = this.value;
-    this.value = value;
-    this.dirty = false;
-    if (this.user) {
-      try {
-        cb.call(this.vm, value, oldValue);
-      } catch (e) {
-        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+  function registerRef (vnode, isRemoval) {
+    var key = vnode.data.ref;
+    if (!isDef(key)) { return }
+
+    var vm = vnode.context;
+    var ref = vnode.componentInstance || vnode.elm;
+    var refs = vm.$refs;
+    if (isRemoval) {
+      if (Array.isArray(refs[key])) {
+        remove(refs[key], ref);
+      } else if (refs[key] === ref) {
+        refs[key] = undefined;
       }
     } else {
-      cb.call(this.vm, value, oldValue);
+      if (vnode.data.refInFor) {
+        if (!Array.isArray(refs[key])) {
+          refs[key] = [ref];
+        } else if (refs[key].indexOf(ref) < 0) {
+          // $flow-disable-line
+          refs[key].push(ref);
+        }
+      } else {
+        refs[key] = ref;
+      }
     }
   }
-};
 
-/**
- * Evaluate and return the value of the watcher.
- * This only gets called for computed property watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  if (this.dirty) {
-    this.value = this.get();
-    this.dirty = false;
+  /**
+   * Virtual DOM patching algorithm based on Snabbdom by
+   * Simon Friis Vindum (@paldepind)
+   * Licensed under the MIT License
+   * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+   *
+   * modified by Evan You (@yyx990803)
+   *
+   * Not type-checking this because this file is perf-critical and the cost
+   * of making flow understand it is not worth it.
+   */
+
+  var emptyNode = new VNode('', {}, []);
+
+  var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+  function childrenIgnored (vnode) {
+    return vnode && vnode.data && vnode.data.domProps && (
+      vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+    )
   }
-  return this.value
-};
 
-/**
- * Depend on this watcher. Only for computed property watchers.
- */
-Watcher.prototype.depend = function depend () {
-  if (this.dep && Dep.target) {
-    this.dep.depend();
+  function sameVnode (a, b) {
+    return (
+      a.key === b.key && (
+        (
+          a.tag === b.tag &&
+          a.isComment === b.isComment &&
+          isDef(a.data) === isDef(b.data) &&
+          !childrenIgnored(a) && !childrenIgnored(b) &&
+          sameInputType(a, b)
+        ) || (
+          isTrue(a.isAsyncPlaceholder) &&
+          a.asyncFactory === b.asyncFactory &&
+          isUndef(b.asyncFactory.error)
+        )
+      )
+    )
   }
-};
 
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
+  function sameInputType (a, b) {
+    if (a.tag !== 'input') { return true }
+    var i;
+    var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+    var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+    return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+  }
 
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
+  function createKeyToOldIdx (children, beginIdx, endIdx) {
+    var i, key;
+    var map = {};
+    for (i = beginIdx; i <= endIdx; ++i) {
+      key = children[i].key;
+      if (isDef(key)) { map[key] = i; }
     }
-    var i = this.deps.length;
-    while (i--) {
-      this$1.deps[i].removeSub(this$1);
-    }
-    this.active = false;
+    return map
   }
-};
 
-/*  */
+  function createPatchFunction (backend) {
+    var i, j;
+    var cbs = {};
 
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
+    var modules = backend.modules;
+    var nodeOps = backend.nodeOps;
 
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
-      }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
+    for (i = 0; i < hooks.length; ++i) {
+      cbs[hooks[i]] = [];
+      for (j = 0; j < modules.length; ++j) {
+        if (isDef(modules[j][hooks[i]])) {
+          cbs[hooks[i]].push(modules[j][hooks[i]]);
         }
-      });
+      }
     }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
+
+    function emptyNodeAt (elm) {
+      return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
     }
-  };
 
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    "development" !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
+    function createRmCb (childElm, listeners) {
+      function remove$$1 () {
+        if (--remove$$1.listeners === 0) {
+          removeNode(childElm);
+        }
       }
+      remove$$1.listeners = listeners;
+      return remove$$1
     }
-    if (props && hasOwn(props, key)) {
-      "development" !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
 
-var computedWatcherOptions = { computed: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if ("development" !== 'production' && getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
+    function removeNode (el) {
+      var parent = nodeOps.parentNode(el);
+      // element may have already been removed due to v-html / v-text
+      if (isDef(parent)) {
+        nodeOps.removeChild(parent, el);
+      }
     }
 
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
+    function isUnknownElement$$1 (vnode, inVPre) {
+      return (
+        !inVPre &&
+        !vnode.ns &&
+        !(
+          config.ignoredElements.length &&
+          config.ignoredElements.some(function (ignore) {
+            return isRegExp(ignore)
+              ? ignore.test(vnode.tag)
+              : ignore === vnode.tag
+          })
+        ) &&
+        config.isUnknownElement(vnode.tag)
+      )
     }
 
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : userDef;
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
-      : noop;
-  }
-  if ("development" !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
+    var creatingElmInVPre = 0;
 
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      watcher.depend();
-      return watcher.evaluate()
-    }
-  }
-}
+    function createElm (
+      vnode,
+      insertedVnodeQueue,
+      parentElm,
+      refElm,
+      nested,
+      ownerArray,
+      index
+    ) {
+      if (isDef(vnode.elm) && isDef(ownerArray)) {
+        // This vnode was used in a previous render!
+        // now it's used as a new node, overwriting its elm would cause
+        // potential patch errors down the road when it's used as an insertion
+        // reference node. Instead, we clone the node on-demand before creating
+        // associated DOM element for it.
+        vnode = ownerArray[index] = cloneVNode(vnode);
+      }
 
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    {
-      if (methods[key] == null) {
-        warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
+      vnode.isRootInsert = !nested; // for transition enter check
+      if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+        return
       }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
+
+      var data = vnode.data;
+      var children = vnode.children;
+      var tag = vnode.tag;
+      if (isDef(tag)) {
+        {
+          if (data && data.pre) {
+            creatingElmInVPre++;
+          }
+          if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+            warn(
+              'Unknown custom element: <' + tag + '> - did you ' +
+              'register the component correctly? For recursive components, ' +
+              'make sure to provide the "name" option.',
+              vnode.context
+            );
+          }
+        }
+
+        vnode.elm = vnode.ns
+          ? nodeOps.createElementNS(vnode.ns, tag)
+          : nodeOps.createElement(tag, vnode);
+        setScope(vnode);
+
+        /* istanbul ignore if */
+        {
+          createChildren(vnode, children, insertedVnodeQueue);
+          if (isDef(data)) {
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+          }
+          insert(parentElm, vnode.elm, refElm);
+        }
+
+        if (data && data.pre) {
+          creatingElmInVPre--;
+        }
+      } else if (isTrue(vnode.isComment)) {
+        vnode.elm = nodeOps.createComment(vnode.text);
+        insert(parentElm, vnode.elm, refElm);
+      } else {
+        vnode.elm = nodeOps.createTextNode(vnode.text);
+        insert(parentElm, vnode.elm, refElm);
       }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
+    }
+
+    function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+      var i = vnode.data;
+      if (isDef(i)) {
+        var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+        if (isDef(i = i.hook) && isDef(i = i.init)) {
+          i(vnode, false /* hydrating */);
+        }
+        // after calling the init hook, if the vnode is a child component
+        // it should've created a child instance and mounted it. the child
+        // component also has set the placeholder vnode's elm.
+        // in that case we can just return the element and be done.
+        if (isDef(vnode.componentInstance)) {
+          initComponent(vnode, insertedVnodeQueue);
+          insert(parentElm, vnode.elm, refElm);
+          if (isTrue(isReactivated)) {
+            reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+          }
+          return true
+        }
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
-  }
-}
 
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
+    function initComponent (vnode, insertedVnodeQueue) {
+      if (isDef(vnode.data.pendingInsert)) {
+        insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+        vnode.data.pendingInsert = null;
       }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function (newData) {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
+      vnode.elm = vnode.componentInstance.$el;
+      if (isPatchable(vnode)) {
+        invokeCreateHooks(vnode, insertedVnodeQueue);
+        setScope(vnode);
+      } else {
+        // empty component root.
+        // skip all element-related modules except for ref (#3455)
+        registerRef(vnode);
+        // make sure to invoke the insert hook
+        insertedVnodeQueue.push(vnode);
+      }
+    }
 
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
+    function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+      var i;
+      // hack for #4339: a reactivated component with inner transition
+      // does not trigger because the inner node's created hooks are not called
+      // again. It's not ideal to involve module-specific logic in here but
+      // there doesn't seem to be a better way to do it.
+      var innerNode = vnode;
+      while (innerNode.componentInstance) {
+        innerNode = innerNode.componentInstance._vnode;
+        if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+          for (i = 0; i < cbs.activate.length; ++i) {
+            cbs.activate[i](emptyNode, innerNode);
+          }
+          insertedVnodeQueue.push(innerNode);
+          break
+        }
+      }
+      // unlike a newly created component,
+      // a reactivated keep-alive component doesn't insert itself
+      insert(parentElm, vnode.elm, refElm);
+    }
 
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
+    function insert (parent, elm, ref$$1) {
+      if (isDef(parent)) {
+        if (isDef(ref$$1)) {
+          if (nodeOps.parentNode(ref$$1) === parent) {
+            nodeOps.insertBefore(parent, elm, ref$$1);
+          }
+        } else {
+          nodeOps.appendChild(parent, elm);
+        }
+      }
     }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      cb.call(vm, watcher.value);
+
+    function createChildren (vnode, children, insertedVnodeQueue) {
+      if (Array.isArray(children)) {
+        {
+          checkDuplicateKeys(children);
+        }
+        for (var i = 0; i < children.length; ++i) {
+          createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+        }
+      } else if (isPrimitive(vnode.text)) {
+        nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+      }
     }
-    return function unwatchFn () {
-      watcher.teardown();
+
+    function isPatchable (vnode) {
+      while (vnode.componentInstance) {
+        vnode = vnode.componentInstance._vnode;
+      }
+      return isDef(vnode.tag)
     }
-  };
-}
 
-/*  */
+    function invokeCreateHooks (vnode, insertedVnodeQueue) {
+      for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+        cbs.create[i$1](emptyNode, vnode);
+      }
+      i = vnode.data.hook; // Reuse variable
+      if (isDef(i)) {
+        if (isDef(i.create)) { i.create(emptyNode, vnode); }
+        if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+      }
+    }
 
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
+    // set scope id attribute for scoped CSS.
+    // this is implemented as a special case to avoid the overhead
+    // of going through the normal attribute patching process.
+    function setScope (vnode) {
+      var i;
+      if (isDef(i = vnode.fnScopeId)) {
+        nodeOps.setStyleScope(vnode.elm, i);
+      } else {
+        var ancestor = vnode;
+        while (ancestor) {
+          if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+            nodeOps.setStyleScope(vnode.elm, i);
+          }
+          ancestor = ancestor.parent;
+        }
+      }
+      // for slot content they should also get the scopeId from the host instance.
+      if (isDef(i = activeInstance) &&
+        i !== vnode.context &&
+        i !== vnode.fnContext &&
+        isDef(i = i.$options._scopeId)
+      ) {
+        nodeOps.setStyleScope(vnode.elm, i);
+      }
+    }
 
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      {
-        defineReactive(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
+    function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+      for (; startIdx <= endIdx; ++startIdx) {
+        createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
       }
-    });
-    toggleObserving(true);
-  }
-}
+    }
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
+    function invokeDestroyHook (vnode) {
+      var i, j;
+      var data = vnode.data;
+      if (isDef(data)) {
+        if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+        for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+      }
+      if (isDef(i = vnode.children)) {
+        for (j = 0; j < vnode.children.length; ++j) {
+          invokeDestroyHook(vnode.children[j]);
+        }
+      }
+    }
 
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
+    function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+      for (; startIdx <= endIdx; ++startIdx) {
+        var ch = vnodes[startIdx];
+        if (isDef(ch)) {
+          if (isDef(ch.tag)) {
+            removeAndInvokeRemoveHook(ch);
+            invokeDestroyHook(ch);
+          } else { // Text node
+            removeNode(ch.elm);
+          }
         }
-        source = source.$parent;
       }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
+    }
+
+    function removeAndInvokeRemoveHook (vnode, rm) {
+      if (isDef(rm) || isDef(vnode.data)) {
+        var i;
+        var listeners = cbs.remove.length + 1;
+        if (isDef(rm)) {
+          // we have a recursively passed down rm callback
+          // increase the listeners count
+          rm.listeners += listeners;
+        } else {
+          // directly removing
+          rm = createRmCb(vnode.elm, listeners);
+        }
+        // recursively invoke hooks on child component root node
+        if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+          removeAndInvokeRemoveHook(i, rm);
+        }
+        for (i = 0; i < cbs.remove.length; ++i) {
+          cbs.remove[i](vnode, rm);
+        }
+        if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+          i(vnode, rm);
         } else {
-          warn(("Injection \"" + key + "\" not found"), vm);
+          rm();
         }
+      } else {
+        removeNode(vnode.elm);
       }
     }
-    return result
-  }
-}
 
-/*  */
+    function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+      var oldStartIdx = 0;
+      var newStartIdx = 0;
+      var oldEndIdx = oldCh.length - 1;
+      var oldStartVnode = oldCh[0];
+      var oldEndVnode = oldCh[oldEndIdx];
+      var newEndIdx = newCh.length - 1;
+      var newStartVnode = newCh[0];
+      var newEndVnode = newCh[newEndIdx];
+      var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
+      // removeOnly is a special flag used only by <transition-group>
+      // to ensure removed elements stay in correct relative positions
+      // during leaving transitions
+      var canMove = !removeOnly;
 
-/*  */
+      {
+        checkDuplicateKeys(newCh);
+      }
+
+      while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+        if (isUndef(oldStartVnode)) {
+          oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+        } else if (isUndef(oldEndVnode)) {
+          oldEndVnode = oldCh[--oldEndIdx];
+        } else if (sameVnode(oldStartVnode, newStartVnode)) {
+          patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+          oldStartVnode = oldCh[++oldStartIdx];
+          newStartVnode = newCh[++newStartIdx];
+        } else if (sameVnode(oldEndVnode, newEndVnode)) {
+          patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+          oldEndVnode = oldCh[--oldEndIdx];
+          newEndVnode = newCh[--newEndIdx];
+        } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+          patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+          canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+          oldStartVnode = oldCh[++oldStartIdx];
+          newEndVnode = newCh[--newEndIdx];
+        } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+          patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+          canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+          oldEndVnode = oldCh[--oldEndIdx];
+          newStartVnode = newCh[++newStartIdx];
+        } else {
+          if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+          idxInOld = isDef(newStartVnode.key)
+            ? oldKeyToIdx[newStartVnode.key]
+            : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+          if (isUndef(idxInOld)) { // New element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          } else {
+            vnodeToMove = oldCh[idxInOld];
+            if (sameVnode(vnodeToMove, newStartVnode)) {
+              patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+              oldCh[idxInOld] = undefined;
+              canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+            } else {
+              // same key but different element. treat as new element
+              createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+            }
+          }
+          newStartVnode = newCh[++newStartIdx];
+        }
+      }
+      if (oldStartIdx > oldEndIdx) {
+        refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+        addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+      } else if (newStartIdx > newEndIdx) {
+        removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      }
+    }
 
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if ("development" !== 'production' && !isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
+    function checkDuplicateKeys (children) {
+      var seenKeys = {};
+      for (var i = 0; i < children.length; i++) {
+        var vnode = children[i];
+        var key = vnode.key;
+        if (isDef(key)) {
+          if (seenKeys[key]) {
+            warn(
+              ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+              vnode.context
+            );
+          } else {
+            seenKeys[key] = true;
+          }
+        }
       }
-      props = extend(extend({}, bindObject), props);
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
+
+    function findIdxInOld (node, oldCh, start, end) {
+      for (var i = start; i < end; i++) {
+        var c = oldCh[i];
+        if (isDef(c) && sameVnode(node, c)) { return i }
       }
-      slotNodes._rendered = true;
     }
-    nodes = slotNodes || fallback;
-  }
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
+    function patchVnode (
+      oldVnode,
+      vnode,
+      insertedVnodeQueue,
+      ownerArray,
+      index,
+      removeOnly
+    ) {
+      if (oldVnode === vnode) {
+        return
+      }
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+      if (isDef(vnode.elm) && isDef(ownerArray)) {
+        // clone reused vnode
+        vnode = ownerArray[index] = cloneVNode(vnode);
+      }
 
-/*  */
+      var elm = vnode.elm = oldVnode.elm;
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
+      if (isTrue(oldVnode.isAsyncPlaceholder)) {
+        if (isDef(vnode.asyncFactory.resolved)) {
+          hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+        } else {
+          vnode.isAsyncPlaceholder = true;
+        }
+        return
+      }
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      "development" !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
+      // reuse element for static trees.
+      // note we only do this if the vnode is cloned -
+      // if the new node is not cloned it means the render functions have been
+      // reset by the hot-reload-api and we need to do a proper re-render.
+      if (isTrue(vnode.isStatic) &&
+        isTrue(oldVnode.isStatic) &&
+        vnode.key === oldVnode.key &&
+        (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+      ) {
+        vnode.componentInstance = oldVnode.componentInstance;
+        return
       }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
+
+      var i;
+      var data = vnode.data;
+      if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+        i(oldVnode, vnode);
+      }
+
+      var oldCh = oldVnode.children;
+      var ch = vnode.children;
+      if (isDef(data) && isPatchable(vnode)) {
+        for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+        if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+      }
+      if (isUndef(vnode.text)) {
+        if (isDef(oldCh) && isDef(ch)) {
+          if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+        } else if (isDef(ch)) {
+          {
+            checkDuplicateKeys(ch);
           }
+          if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+          addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+        } else if (isDef(oldCh)) {
+          removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        } else if (isDef(oldVnode.text)) {
+          nodeOps.setTextContent(elm, '');
         }
-      };
-
-      for (var key in value) loop( key );
+      } else if (oldVnode.text !== vnode.text) {
+        nodeOps.setTextContent(elm, vnode.text);
+      }
+      if (isDef(data)) {
+        if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+      }
     }
-  }
-  return data
-}
-
-/*  */
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
+    function invokeInsertHook (vnode, queue, initial) {
+      // delay insert hooks for component root nodes, invoke them after the
+      // element is really inserted
+      if (isTrue(initial) && isDef(vnode.parent)) {
+        vnode.parent.data.pendingInsert = queue;
+      } else {
+        for (var i = 0; i < queue.length; ++i) {
+          queue[i].data.hook.insert(queue[i]);
+        }
       }
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
+    var hydrationBailed = false;
+    // list of modules that can skip create hook during hydration because they
+    // are already rendered on the client or has no need for initialization
+    // Note: style is excluded because it relies on initial clone for future
+    // deep updates (#7063).
+    var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
-/*  */
+    // Note: this is a browser-only function so we can assume elms are DOM nodes.
+    function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+      var i;
+      var tag = vnode.tag;
+      var data = vnode.data;
+      var children = vnode.children;
+      inVPre = inVPre || (data && data.pre);
+      vnode.elm = elm;
 
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      "development" !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
+      if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+        vnode.isAsyncPlaceholder = true;
+        return true
       }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+      // assert node match
+      {
+        if (!assertNodeMatch(elm, vnode, inVPre)) {
+          return false
+        }
+      }
+      if (isDef(data)) {
+        if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+        if (isDef(i = vnode.componentInstance)) {
+          // child component. it should have hydrated its own tree.
+          initComponent(vnode, insertedVnodeQueue);
+          return true
+        }
+      }
+      if (isDef(tag)) {
+        if (isDef(children)) {
+          // empty element, allow client to pick up and populate children
+          if (!elm.hasChildNodes()) {
+            createChildren(vnode, children, insertedVnodeQueue);
+          } else {
+            // v-html and domProps: innerHTML
+            if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+              if (i !== elm.innerHTML) {
+                /* istanbul ignore if */
+                if (typeof console !== 'undefined' &&
+                  !hydrationBailed
+                ) {
+                  hydrationBailed = true;
+                  console.warn('Parent: ', elm);
+                  console.warn('server innerHTML: ', i);
+                  console.warn('client innerHTML: ', elm.innerHTML);
+                }
+                return false
+              }
+            } else {
+              // iterate and compare children lists
+              var childrenMatch = true;
+              var childNode = elm.firstChild;
+              for (var i$1 = 0; i$1 < children.length; i$1++) {
+                if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+                  childrenMatch = false;
+                  break
+                }
+                childNode = childNode.nextSibling;
+              }
+              // if childNode is not null, it means the actual childNodes list is
+              // longer than the virtual children list.
+              if (!childrenMatch || childNode) {
+                /* istanbul ignore if */
+                if (typeof console !== 'undefined' &&
+                  !hydrationBailed
+                ) {
+                  hydrationBailed = true;
+                  console.warn('Parent: ', elm);
+                  console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+                }
+                return false
+              }
+            }
+          }
+        }
+        if (isDef(data)) {
+          var fullInvoke = false;
+          for (var key in data) {
+            if (!isRenderedModule(key)) {
+              fullInvoke = true;
+              invokeCreateHooks(vnode, insertedVnodeQueue);
+              break
+            }
+          }
+          if (!fullInvoke && data['class']) {
+            // ensure collecting deps for deep class bindings for future updates
+            traverse(data['class']);
+          }
+        }
+      } else if (elm.data !== vnode.text) {
+        elm.data = vnode.text;
+      }
+      return true
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  var vnode = options.render.call(null, renderContext._c, renderContext);
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+    function assertNodeMatch (node, vnode, inVPre) {
+      if (isDef(vnode.tag)) {
+        return vnode.tag.indexOf('vue-component') === 0 || (
+          !isUnknownElement$$1(vnode, inVPre) &&
+          vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+        )
+      } else {
+        return node.nodeType === (vnode.isComment ? 8 : 3)
+      }
     }
-    return res
-  }
-}
-
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
-}
 
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
+    return function patch (oldVnode, vnode, hydrating, removeOnly) {
+      if (isUndef(vnode)) {
+        if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+        return
+      }
 
+      var isInitialPatch = false;
+      var insertedVnodeQueue = [];
 
+      if (isUndef(oldVnode)) {
+        // empty mount (likely as component), create new root element
+        isInitialPatch = true;
+        createElm(vnode, insertedVnodeQueue);
+      } else {
+        var isRealElement = isDef(oldVnode.nodeType);
+        if (!isRealElement && sameVnode(oldVnode, vnode)) {
+          // patch existing root node
+          patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
+        } else {
+          if (isRealElement) {
+            // mounting to a real element
+            // check if this is server-rendered content and if we can perform
+            // a successful hydration.
+            if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+              oldVnode.removeAttribute(SSR_ATTR);
+              hydrating = true;
+            }
+            if (isTrue(hydrating)) {
+              if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+                invokeInsertHook(vnode, insertedVnodeQueue, true);
+                return oldVnode
+              } else {
+                warn(
+                  'The client-side rendered virtual DOM tree is not matching ' +
+                  'server-rendered content. This is likely caused by incorrect ' +
+                  'HTML markup, for example nesting block-level elements inside ' +
+                  '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                  'full client-side render.'
+                );
+              }
+            }
+            // either not server-rendered, or hydration failed.
+            // create an empty node and replace it
+            oldVnode = emptyNodeAt(oldVnode);
+          }
 
+          // replacing existing element
+          var oldElm = oldVnode.elm;
+          var parentElm = nodeOps.parentNode(oldElm);
+
+          // create new node
+          createElm(
+            vnode,
+            insertedVnodeQueue,
+            // extremely rare edge case: do not insert if old element is in a
+            // leaving transition. Only happens when combining transition +
+            // keep-alive + HOCs. (#4590)
+            oldElm._leaveCb ? null : parentElm,
+            nodeOps.nextSibling(oldElm)
+          );
 
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
+          // update parent placeholder node element, recursively
+          if (isDef(vnode.parent)) {
+            var ancestor = vnode.parent;
+            var patchable = isPatchable(vnode);
+            while (ancestor) {
+              for (var i = 0; i < cbs.destroy.length; ++i) {
+                cbs.destroy[i](ancestor);
+              }
+              ancestor.elm = vnode.elm;
+              if (patchable) {
+                for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                  cbs.create[i$1](emptyNode, ancestor);
+                }
+                // #6513
+                // invoke insert hooks that may have been merged by create hooks.
+                // e.g. for directives that uses the "inserted" hook.
+                var insert = ancestor.data.hook.insert;
+                if (insert.merged) {
+                  // start at index 1 to avoid re-invoking component mounted hook
+                  for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                    insert.fns[i$2]();
+                  }
+                }
+              } else {
+                registerRef(ancestor);
+              }
+              ancestor = ancestor.parent;
+            }
+          }
 
+          // destroy old node
+          if (isDef(parentElm)) {
+            removeVnodes(parentElm, [oldVnode], 0, 0);
+          } else if (isDef(oldVnode.tag)) {
+            invokeDestroyHook(oldVnode);
+          }
+        }
+      }
 
-// Updates the state of the component to weex native render engine.
+      invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+      return vnode.elm
+    }
+  }
 
-/*  */
+  /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  var directives = {
+    create: updateDirectives,
+    update: updateDirectives,
+    destroy: function unbindDirectives (vnode) {
+      updateDirectives(vnode, emptyNode);
+    }
+  };
 
-// listening on native callback
+  function updateDirectives (oldVnode, vnode) {
+    if (oldVnode.data.directives || vnode.data.directives) {
+      _update(oldVnode, vnode);
+    }
+  }
 
-/*  */
+  function _update (oldVnode, vnode) {
+    var isCreate = oldVnode === emptyNode;
+    var isDestroy = vnode === emptyNode;
+    var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+    var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
 
-/*  */
+    var dirsWithInsert = [];
+    var dirsWithPostpatch = [];
 
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
+    var key, oldDir, dir;
+    for (key in newDirs) {
+      oldDir = oldDirs[key];
+      dir = newDirs[key];
+      if (!oldDir) {
+        // new directive, bind
+        callHook$1(dir, 'bind', vnode, oldVnode);
+        if (dir.def && dir.def.inserted) {
+          dirsWithInsert.push(dir);
+        }
       } else {
-        activateChildComponent(componentInstance, true /* direct */);
+        // existing directive, update
+        dir.oldValue = oldDir.value;
+        callHook$1(dir, 'update', vnode, oldVnode);
+        if (dir.def && dir.def.componentUpdated) {
+          dirsWithPostpatch.push(dir);
+        }
       }
     }
-  },
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
+    if (dirsWithInsert.length) {
+      var callInsert = function () {
+        for (var i = 0; i < dirsWithInsert.length; i++) {
+          callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+        }
+      };
+      if (isCreate) {
+        mergeVNodeHook(vnode, 'insert', callInsert);
       } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
+        callInsert();
       }
     }
-  }
-};
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
+    if (dirsWithPostpatch.length) {
+      mergeVNodeHook(vnode, 'postpatch', function () {
+        for (var i = 0; i < dirsWithPostpatch.length; i++) {
+          callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+        }
+      });
+    }
 
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
+    if (!isCreate) {
+      for (key in oldDirs) {
+        if (!newDirs[key]) {
+          // no longer present, unbind
+          callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+        }
+      }
+    }
   }
 
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
+  var emptyModifiers = Object.create(null);
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+  function normalizeDirectives$1 (
+    dirs,
+    vm
+  ) {
+    var res = Object.create(null);
+    if (!dirs) {
+      // $flow-disable-line
+      return res
+    }
+    var i, dir;
+    for (i = 0; i < dirs.length; i++) {
+      dir = dirs[i];
+      if (!dir.modifiers) {
+        // $flow-disable-line
+        dir.modifiers = emptyModifiers;
+      }
+      res[getRawDirName(dir)] = dir;
+      dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
     }
+    // $flow-disable-line
+    return res
   }
 
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
+  function getRawDirName (dir) {
+    return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
   }
 
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+    var fn = dir.def && dir.def[hook];
+    if (fn) {
+      try {
+        fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+      } catch (e) {
+        handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+      }
+    }
   }
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
+  var baseModules = [
+    ref,
+    directives
+  ];
 
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
+  /*  */
 
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+  function updateAttrs (oldVnode, vnode) {
+    var opts = vnode.componentOptions;
+    if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+      return
+    }
+    if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+      return
+    }
+    var key, cur, old;
+    var elm = vnode.elm;
+    var oldAttrs = oldVnode.data.attrs || {};
+    var attrs = vnode.data.attrs || {};
+    // clone observed objects, as the user probably wants to mutate it
+    if (isDef(attrs.__ob__)) {
+      attrs = vnode.data.attrs = extend({}, attrs);
     }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    "development" !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if ("development" !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
+    for (key in attrs) {
+      cur = attrs[key];
+      old = oldAttrs[key];
+      if (old !== cur) {
+        setAttr(elm, key, cur);
+      }
+    }
+    // #4391: in IE9, setting type can reset value for input[type=radio]
+    // #6666: IE/Edge forces progress value down to 1 before setting a max
+    /* istanbul ignore if */
+    if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+      setAttr(elm, 'value', attrs.value);
+    }
+    for (key in oldAttrs) {
+      if (isUndef(attrs[key])) {
+        if (isXlink(key)) {
+          elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+        } else if (!isEnumeratedAttr(key)) {
+          elm.removeAttribute(key);
+        }
+      }
     }
   }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
+
+  function setAttr (el, key, value) {
+    if (el.tagName.indexOf('-') > -1) {
+      baseSetAttr(el, key, value);
+    } else if (isBooleanAttr(key)) {
+      // set attribute for blank value
+      // e.g. <option disabled>Select one</option>
+      if (isFalsyAttrValue(value)) {
+        el.removeAttribute(key);
+      } else {
+        // technically allowfullscreen is a boolean attribute for <iframe>,
+        // but Flash expects a value of "true" when used on <embed> tag
+        value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+          ? 'true'
+          : key;
+        el.setAttribute(key, value);
+      }
+    } else if (isEnumeratedAttr(key)) {
+      el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+    } else if (isXlink(key)) {
+      if (isFalsyAttrValue(value)) {
+        el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else {
+        el.setAttributeNS(xlinkNS, key, value);
+      }
     } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
+      baseSetAttr(el, key, value);
     }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
   }
-}
 
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
+  function baseSetAttr (el, key, value) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
+      el.setAttribute(key, value);
+    }
+  }
 
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
+  var attrs = {
+    create: updateAttrs,
+    update: updateAttrs
   };
 
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
+  /*  */
 
-    // reset _rendered flag on slots for duplicate slot check
-    {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
+  function updateClass (oldVnode, vnode) {
+    var el = vnode.elm;
+    var data = vnode.data;
+    var oldData = oldVnode.data;
+    if (
+      isUndef(data.staticClass) &&
+      isUndef(data.class) && (
+        isUndef(oldData) || (
+          isUndef(oldData.staticClass) &&
+          isUndef(oldData.class)
+        )
+      )
+    ) {
+      return
     }
 
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    var cls = genClassForVnode(vnode);
+
+    // handle transition classes
+    var transitionClass = el._transitionClasses;
+    if (isDef(transitionClass)) {
+      cls = concat(cls, stringifyClass(transitionClass));
     }
 
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
+    // set the class
+    if (cls !== el._prevClass) {
+      el.setAttribute('class', cls);
+      el._prevClass = cls;
+    }
+  }
+
+  var klass = {
+    create: updateClass,
+    update: updateClass
+  };
+
+  /*  */
+
+  var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+  function parseFilters (exp) {
+    var inSingle = false;
+    var inDouble = false;
+    var inTemplateString = false;
+    var inRegex = false;
+    var curly = 0;
+    var square = 0;
+    var paren = 0;
+    var lastFilterIndex = 0;
+    var c, prev, i, expression, filters;
+
+    for (i = 0; i < exp.length; i++) {
+      prev = c;
+      c = exp.charCodeAt(i);
+      if (inSingle) {
+        if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+      } else if (inDouble) {
+        if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+      } else if (inTemplateString) {
+        if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+      } else if (inRegex) {
+        if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+      } else if (
+        c === 0x7C && // pipe
+        exp.charCodeAt(i + 1) !== 0x7C &&
+        exp.charCodeAt(i - 1) !== 0x7C &&
+        !curly && !square && !paren
+      ) {
+        if (expression === undefined) {
+          // first filter, end of expression
+          lastFilterIndex = i + 1;
+          expression = exp.slice(0, i).trim();
         } else {
-          vnode = vm._vnode;
+          pushFilter();
+        }
+      } else {
+        switch (c) {
+          case 0x22: inDouble = true; break         // "
+          case 0x27: inSingle = true; break         // '
+          case 0x60: inTemplateString = true; break // `
+          case 0x28: paren++; break                 // (
+          case 0x29: paren--; break                 // )
+          case 0x5B: square++; break                // [
+          case 0x5D: square--; break                // ]
+          case 0x7B: curly++; break                 // {
+          case 0x7D: curly--; break                 // }
+        }
+        if (c === 0x2f) { // /
+          var j = i - 1;
+          var p = (void 0);
+          // find first non-whitespace prev char
+          for (; j >= 0; j--) {
+            p = exp.charAt(j);
+            if (p !== ' ') { break }
+          }
+          if (!p || !validDivisionCharRE.test(p)) {
+            inRegex = true;
+          }
         }
       }
     }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if ("development" !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-var uid$3 = 0;
 
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if ("development" !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
+    if (expression === undefined) {
+      expression = exp.slice(0, i).trim();
+    } else if (lastFilterIndex !== 0) {
+      pushFilter();
     }
-    /* istanbul ignore else */
-    {
-      initProxy(vm);
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
 
-    /* istanbul ignore if */
-    if ("development" !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
+    function pushFilter () {
+      (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+      lastFilterIndex = i + 1;
     }
 
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified
-}
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
+    if (filters) {
+      for (i = 0; i < filters.length; i++) {
+        expression = wrapFilter(expression, filters[i]);
       }
     }
-    return res
-  } else {
-    return latest
-  }
-}
 
-function Vue (options) {
-  if ("development" !== 'production' &&
-    !(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
+    return expression
   }
-  this._init(options);
-}
 
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
+  function wrapFilter (exp, filter) {
+    var i = filter.indexOf('(');
+    if (i < 0) {
+      // _f: resolveFilter
+      return ("_f(\"" + filter + "\")(" + exp + ")")
+    } else {
+      var name = filter.slice(0, i);
+      var args = filter.slice(i + 1);
+      return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
+    }
+  }
 
-/*  */
+  /*  */
 
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
+  function baseWarn (msg) {
+    console.error(("[Vue compiler]: " + msg));
+  }
 
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
+  function pluckModuleFunction (
+    modules,
+    key
+  ) {
+    return modules
+      ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+      : []
+  }
 
-/*  */
+  function addProp (el, name, value) {
+    (el.props || (el.props = [])).push({ name: name, value: value });
+    el.plain = false;
+  }
 
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
+  function addAttr (el, name, value) {
+    (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+    el.plain = false;
+  }
 
-/*  */
+  // add a raw attr (use this in preTransforms)
+  function addRawAttr (el, name, value) {
+    el.attrsMap[name] = value;
+    el.attrsList.push({ name: name, value: value });
+  }
 
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
+  function addDirective (
+    el,
+    name,
+    rawName,
+    value,
+    arg,
+    modifiers
+  ) {
+    (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+    el.plain = false;
+  }
 
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
+  function addHandler (
+    el,
+    name,
+    value,
+    modifiers,
+    important,
+    warn
+  ) {
+    modifiers = modifiers || emptyObject;
+    // warn prevent and passive modifier
+    /* istanbul ignore if */
+    if (
+      warn &&
+      modifiers.prevent && modifiers.passive
+    ) {
+      warn(
+        'passive and prevent can\'t be used together. ' +
+        'Passive handler can\'t prevent default event.'
+      );
     }
 
-    var name = extendOptions.name || Super.options.name;
-    if ("development" !== 'production' && name) {
-      validateComponentName(name);
+    // normalize click.right and click.middle since they don't actually fire
+    // this is technically browser-specific, but at least for now browsers are
+    // the only target envs that have right/middle clicks.
+    if (name === 'click') {
+      if (modifiers.right) {
+        name = 'contextmenu';
+        delete modifiers.right;
+      } else if (modifiers.middle) {
+        name = 'mouseup';
+      }
     }
 
-    var Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
+    // check capture modifier
+    if (modifiers.capture) {
+      delete modifiers.capture;
+      name = '!' + name; // mark the event as captured
+    }
+    if (modifiers.once) {
+      delete modifiers.once;
+      name = '~' + name; // mark the event as once
     }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
+    /* istanbul ignore if */
+    if (modifiers.passive) {
+      delete modifiers.passive;
+      name = '&' + name; // mark the event as passive
     }
 
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
+    var events;
+    if (modifiers.native) {
+      delete modifiers.native;
+      events = el.nativeEvents || (el.nativeEvents = {});
+    } else {
+      events = el.events || (el.events = {});
+    }
 
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
+    var newHandler = {
+      value: value.trim()
+    };
+    if (modifiers !== emptyObject) {
+      newHandler.modifiers = modifiers;
     }
 
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
+    var handlers = events[name];
+    /* istanbul ignore if */
+    if (Array.isArray(handlers)) {
+      important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+    } else if (handlers) {
+      events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+    } else {
+      events[name] = newHandler;
+    }
 
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
+    el.plain = false;
+  }
 
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
+  function getBindingAttr (
+    el,
+    name,
+    getStatic
+  ) {
+    var dynamicValue =
+      getAndRemoveAttr(el, ':' + name) ||
+      getAndRemoveAttr(el, 'v-bind:' + name);
+    if (dynamicValue != null) {
+      return parseFilters(dynamicValue)
+    } else if (getStatic !== false) {
+      var staticValue = getAndRemoveAttr(el, name);
+      if (staticValue != null) {
+        return JSON.stringify(staticValue)
+      }
+    }
   }
-}
 
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
+  // note: this only removes the attr from the Array (attrsList) so that it
+  // doesn't get processed by processAttrs.
+  // By default it does NOT remove it from the map (attrsMap) because the map is
+  // needed during codegen.
+  function getAndRemoveAttr (
+    el,
+    name,
+    removeFromMap
+  ) {
+    var val;
+    if ((val = el.attrsMap[name]) != null) {
+      var list = el.attrsList;
+      for (var i = 0, l = list.length; i < l; i++) {
+        if (list[i].name === name) {
+          list.splice(i, 1);
+          break
+        }
+      }
+    }
+    if (removeFromMap) {
+      delete el.attrsMap[name];
+    }
+    return val
   }
-}
 
-/*  */
+  /*  */
 
-function initAssetRegisters (Vue) {
   /**
-   * Create asset registration methods.
+   * Cross-platform code generation for component v-model
    */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if ("development" !== 'production' && type === 'component') {
-          validateComponentName(id);
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
+  function genComponentModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var ref = modifiers || {};
+    var number = ref.number;
+    var trim = ref.trim;
+
+    var baseValueExpression = '$$v';
+    var valueExpression = baseValueExpression;
+    if (trim) {
+      valueExpression =
+        "(typeof " + baseValueExpression + " === 'string'" +
+        "? " + baseValueExpression + ".trim()" +
+        ": " + baseValueExpression + ")";
+    }
+    if (number) {
+      valueExpression = "_n(" + valueExpression + ")";
+    }
+    var assignment = genAssignmentCode(value, valueExpression);
+
+    el.model = {
+      value: ("(" + value + ")"),
+      expression: ("\"" + value + "\""),
+      callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
     };
-  });
-}
-
-/*  */
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
   }
-  /* istanbul ignore next */
-  return false
-}
 
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
+  /**
+   * Cross-platform codegen helper for generating v-model value assignment code.
+   */
+  function genAssignmentCode (
+    value,
+    assignment
+  ) {
+    var res = parseModel(value);
+    if (res.key === null) {
+      return (value + "=" + assignment)
+    } else {
+      return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
     }
   }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
 
-var patternTypes = [String, RegExp, Array];
+  /**
+   * Parse a v-model expression into a base path and a final key segment.
+   * Handles both dot-path and possible square brackets.
+   *
+   * Possible cases:
+   *
+   * - test
+   * - test[key]
+   * - test[test1[key]]
+   * - test["a"][key]
+   * - xxx.test[a[a].test1[key]]
+   * - test.xxx.a["asa"][test1[key]]
+   *
+   */
 
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
+  var len, str, chr, index$1, expressionPos, expressionEndPos;
 
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
 
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
 
-  destroyed: function destroyed () {
-    var this$1 = this;
+  function parseModel (val) {
+    // Fix https://github.com/vuejs/vue/pull/7730
+    // allow v-model="obj.val " (trailing whitespace)
+    val = val.trim();
+    len = val.length;
 
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+      index$1 = val.lastIndexOf('.');
+      if (index$1 > -1) {
+        return {
+          exp: val.slice(0, index$1),
+          key: '"' + val.slice(index$1 + 1) + '"'
+        }
+      } else {
+        return {
+          exp: val,
+          key: null
+        }
+      }
     }
-  },
-
-  mounted: function mounted () {
-    var this$1 = this;
 
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
+    str = val;
+    index$1 = expressionPos = expressionEndPos = 0;
 
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
+    while (!eof()) {
+      chr = next();
+      /* istanbul ignore if */
+      if (isStringStart(chr)) {
+        parseString(chr);
+      } else if (chr === 0x5B) {
+        parseBracket(chr);
       }
+    }
 
-      vnode.data.keepAlive = true;
+    return {
+      exp: val.slice(0, expressionPos),
+      key: val.slice(expressionPos + 1, expressionEndPos)
     }
-    return vnode || (slot && slot[0])
   }
-}
 
-var builtInComponents = {
-  KeepAlive: KeepAlive
-}
+  function next () {
+    return str.charCodeAt(++index$1)
+  }
 
-/*  */
+  function eof () {
+    return index$1 >= len
+  }
 
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
+  function isStringStart (chr) {
+    return chr === 0x22 || chr === 0x27
   }
-  Object.defineProperty(Vue, 'config', configDef);
 
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive
-  };
+  function parseBracket (chr) {
+    var inBracket = 1;
+    expressionPos = index$1;
+    while (!eof()) {
+      chr = next();
+      if (isStringStart(chr)) {
+        parseString(chr);
+        continue
+      }
+      if (chr === 0x5B) { inBracket++; }
+      if (chr === 0x5D) { inBracket--; }
+      if (inBracket === 0) {
+        expressionEndPos = index$1;
+        break
+      }
+    }
+  }
 
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
+  function parseString (chr) {
+    var stringQuote = chr;
+    while (!eof()) {
+      chr = next();
+      if (chr === stringQuote) {
+        break
+      }
+    }
+  }
 
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
+  /*  */
 
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
+  var warn$1;
 
-  extend(Vue.options.components, builtInComponents);
+  // in some cases, the event used has to be determined at runtime
+  // so we used some reserved tokens during compile.
+  var RANGE_TOKEN = '__r';
+  var CHECKBOX_RADIO_TOKEN = '__c';
 
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
+  function model (
+    el,
+    dir,
+    _warn
+  ) {
+    warn$1 = _warn;
+    var value = dir.value;
+    var modifiers = dir.modifiers;
+    var tag = el.tag;
+    var type = el.attrsMap.type;
 
-initGlobalAPI(Vue);
+    {
+      // inputs with type="file" are read only and setting the input's
+      // value will throw an error.
+      if (tag === 'input' && type === 'file') {
+        warn$1(
+          "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+          "File inputs are read only. Use a v-on:change listener instead."
+        );
+      }
+    }
 
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
+    if (el.component) {
+      genComponentModel(el, value, modifiers);
+      // component v-model doesn't need extra runtime
+      return false
+    } else if (tag === 'select') {
+      genSelect(el, value, modifiers);
+    } else if (tag === 'input' && type === 'checkbox') {
+      genCheckboxModel(el, value, modifiers);
+    } else if (tag === 'input' && type === 'radio') {
+      genRadioModel(el, value, modifiers);
+    } else if (tag === 'input' || tag === 'textarea') {
+      genDefaultModel(el, value, modifiers);
+    } else if (!config.isReservedTag(tag)) {
+      genComponentModel(el, value, modifiers);
+      // component v-model doesn't need extra runtime
+      return false
+    } else {
+      warn$1(
+        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+        "v-model is not supported on this element type. " +
+        'If you are working with contenteditable, it\'s recommended to ' +
+        'wrap a library dedicated for that purpose inside a custom component.'
+      );
+    }
 
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
+    // ensure runtime directive metadata
+    return true
   }
-});
 
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.17-beta.0';
+  function genCheckboxModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var valueBinding = getBindingAttr(el, 'value') || 'null';
+    var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+    var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+    addProp(el, 'checked',
+      "Array.isArray(" + value + ")" +
+      "?_i(" + value + "," + valueBinding + ")>-1" + (
+        trueValueBinding === 'true'
+          ? (":(" + value + ")")
+          : (":_q(" + value + "," + trueValueBinding + ")")
+      )
+    );
+    addHandler(el, 'change',
+      "var $$a=" + value + "," +
+          '$$el=$event.target,' +
+          "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+      'if(Array.isArray($$a)){' +
+        "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+            '$$i=_i($$a,$$v);' +
+        "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+        "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
+      "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+      null, true
+    );
+  }
 
-/*  */
+  function genRadioModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var valueBinding = getBindingAttr(el, 'value') || 'null';
+    valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+    addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+    addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+  }
 
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
+  function genSelect (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var selectedVal = "Array.prototype.filter" +
+      ".call($event.target.options,function(o){return o.selected})" +
+      ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+      "return " + (number ? '_n(val)' : 'val') + "})";
 
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
+    var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+    var code = "var $$selectedVal = " + selectedVal + ";";
+    code = code + " " + (genAssignmentCode(value, assignment));
+    addHandler(el, 'change', code, null, true);
+  }
 
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+  function genDefaultModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var type = el.attrsMap.type;
 
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
+    // warn if v-bind:value conflicts with v-model
+    // except for inputs with v-bind:type
+    {
+      var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+      var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+      if (value$1 && !typeBinding) {
+        var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+        warn$1(
+          binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+          'because the latter already expands to a value binding internally'
+        );
+      }
+    }
 
-var xlinkNS = 'http://www.w3.org/1999/xlink';
+    var ref = modifiers || {};
+    var lazy = ref.lazy;
+    var number = ref.number;
+    var trim = ref.trim;
+    var needCompositionGuard = !lazy && type !== 'range';
+    var event = lazy
+      ? 'change'
+      : type === 'range'
+        ? RANGE_TOKEN
+        : 'input';
 
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
+    var valueExpression = '$event.target.value';
+    if (trim) {
+      valueExpression = "$event.target.value.trim()";
+    }
+    if (number) {
+      valueExpression = "_n(" + valueExpression + ")";
+    }
 
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
+    var code = genAssignmentCode(value, valueExpression);
+    if (needCompositionGuard) {
+      code = "if($event.target.composing)return;" + code;
+    }
 
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
+    addProp(el, 'value', ("(" + value + ")"));
+    addHandler(el, event, code, null, true);
+    if (trim || number) {
+      addHandler(el, 'blur', '$forceUpdate()');
+    }
+  }
 
-/*  */
+  /*  */
 
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
+  // normalize v-model event tokens that can only be determined at runtime.
+  // it's important to place the event as the first in the array because
+  // the whole point is ensuring the v-model callback gets called before
+  // user-attached handlers.
+  function normalizeEvents (on) {
+    /* istanbul ignore if */
+    if (isDef(on[RANGE_TOKEN])) {
+      // IE input[type=range] only supports `change` event
+      var event = isIE ? 'change' : 'input';
+      on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+      delete on[RANGE_TOKEN];
+    }
+    // This was originally intended to fix #4521 but no longer necessary
+    // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+    /* istanbul ignore if */
+    if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+      on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+      delete on[CHECKBOX_RADIO_TOKEN];
     }
   }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
+
+  var target$1;
+
+  function createOnceHandler$1 (event, handler, capture) {
+    var _target = target$1; // save current target element in closure
+    return function onceHandler () {
+      var res = handler.apply(null, arguments);
+      if (res !== null) {
+        remove$2(event, onceHandler, capture, _target);
+      }
     }
   }
-  return renderClass(data.staticClass, data.class)
-}
 
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
+  function add$1 (
+    event,
+    handler,
+    capture,
+    passive
+  ) {
+    handler = withMacroTask(handler);
+    target$1.addEventListener(
+      event,
+      handler,
+      supportsPassive
+        ? { capture: capture, passive: passive }
+        : capture
+    );
+  }
+
+  function remove$2 (
+    event,
+    handler,
+    capture,
+    _target
+  ) {
+    (_target || target$1).removeEventListener(
+      event,
+      handler._withTask || handler,
+      capture
+    );
   }
-}
 
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
+  function updateDOMListeners (oldVnode, vnode) {
+    if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+      return
+    }
+    var on = vnode.data.on || {};
+    var oldOn = oldVnode.data.on || {};
+    target$1 = vnode.elm;
+    normalizeEvents(on);
+    updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
+    target$1 = undefined;
   }
-  /* istanbul ignore next */
-  return ''
-}
 
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
+  var events = {
+    create: updateDOMListeners,
+    update: updateDOMListeners
+  };
+
+  /*  */
+
+  function updateDOMProps (oldVnode, vnode) {
+    if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+      return
+    }
+    var key, cur;
+    var elm = vnode.elm;
+    var oldProps = oldVnode.data.domProps || {};
+    var props = vnode.data.domProps || {};
+    // clone observed objects, as the user probably wants to mutate it
+    if (isDef(props.__ob__)) {
+      props = vnode.data.domProps = extend({}, props);
+    }
+
+    for (key in oldProps) {
+      if (isUndef(props[key])) {
+        elm[key] = '';
+      }
+    }
+    for (key in props) {
+      cur = props[key];
+      // ignore children if the node has textContent or innerHTML,
+      // as these will throw away existing DOM nodes and cause removal errors
+      // on subsequent patches (#3360)
+      if (key === 'textContent' || key === 'innerHTML') {
+        if (vnode.children) { vnode.children.length = 0; }
+        if (cur === oldProps[key]) { continue }
+        // #6601 work around Chrome version <= 55 bug where single textNode
+        // replaced by innerHTML/textContent retains its parentNode property
+        if (elm.childNodes.length === 1) {
+          elm.removeChild(elm.childNodes[0]);
+        }
+      }
 
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
+      if (key === 'value') {
+        // store value as _value as well since
+        // non-string values will be stringified
+        elm._value = cur;
+        // avoid resetting cursor position when value is the same
+        var strCur = isUndef(cur) ? '' : String(cur);
+        if (shouldUpdateValue(elm, strCur)) {
+          elm.value = strCur;
+        }
+      } else {
+        elm[key] = cur;
+      }
+    }
   }
-  if (isObject(value)) {
-    return stringifyObject(value)
+
+  // check platforms/web/util/attrs.js acceptValue
+
+
+  function shouldUpdateValue (elm, checkVal) {
+    return (!elm.composing && (
+      elm.tagName === 'OPTION' ||
+      isNotInFocusAndDirty(elm, checkVal) ||
+      isDirtyWithModifiers(elm, checkVal)
+    ))
   }
-  if (typeof value === 'string') {
-    return value
+
+  function isNotInFocusAndDirty (elm, checkVal) {
+    // return true when textbox (.number and .trim) loses focus and its value is
+    // not equal to the updated value
+    var notInFocus = true;
+    // #6157
+    // work around IE bug when accessing document.activeElement in an iframe
+    try { notInFocus = document.activeElement !== elm; } catch (e) {}
+    return notInFocus && elm.value !== checkVal
   }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isPreTag = function (tag) { return tag === 'pre'; };
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
+
+  function isDirtyWithModifiers (elm, newVal) {
+    var value = elm.value;
+    var modifiers = elm._vModifiers; // injected by v-model runtime
+    if (isDef(modifiers)) {
+      if (modifiers.lazy) {
+        // inputs with lazy should only be updated when not in focus
+        return false
+      }
+      if (modifiers.number) {
+        return toNumber(value) !== toNumber(newVal)
+      }
+      if (modifiers.trim) {
+        return value.trim() !== newVal.trim()
+      }
+    }
+    return value !== newVal
   }
-  if (isReservedTag(tag)) {
-    return false
+
+  var domProps = {
+    create: updateDOMProps,
+    update: updateDOMProps
+  };
+
+  /*  */
+
+  var parseStyleText = cached(function (cssText) {
+    var res = {};
+    var listDelimiter = /;(?![^(]*\))/g;
+    var propertyDelimiter = /:(.+)/;
+    cssText.split(listDelimiter).forEach(function (item) {
+      if (item) {
+        var tmp = item.split(propertyDelimiter);
+        tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+      }
+    });
+    return res
+  });
+
+  // merge static and dynamic style data on the same vnode
+  function normalizeStyleData (data) {
+    var style = normalizeStyleBinding(data.style);
+    // static style is pre-processed into an object during compilation
+    // and is always a fresh object, so it's safe to merge into it
+    return data.staticStyle
+      ? extend(data.staticStyle, style)
+      : style
   }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+
+  // normalize possible array / string values into Object
+  function normalizeStyleBinding (bindingStyle) {
+    if (Array.isArray(bindingStyle)) {
+      return toObject(bindingStyle)
+    }
+    if (typeof bindingStyle === 'string') {
+      return parseStyleText(bindingStyle)
+    }
+    return bindingStyle
   }
-}
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+  /**
+   * parent component style should be after child's
+   * so that parent component's style could override it
+   */
+  function getStyle (vnode, checkChild) {
+    var res = {};
+    var styleData;
+
+    if (checkChild) {
+      var childNode = vnode;
+      while (childNode.componentInstance) {
+        childNode = childNode.componentInstance._vnode;
+        if (
+          childNode && childNode.data &&
+          (styleData = normalizeStyleData(childNode.data))
+        ) {
+          extend(res, styleData);
+        }
+      }
+    }
 
-/*  */
+    if ((styleData = normalizeStyleData(vnode.data))) {
+      extend(res, styleData);
+    }
 
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      "development" !== 'production' && warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
+    var parentNode = vnode;
+    while ((parentNode = parentNode.parent)) {
+      if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+        extend(res, styleData);
+      }
     }
-    return selected
-  } else {
-    return el
+    return res
   }
-}
 
-/*  */
+  /*  */
 
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
+  var cssVarRE = /^--/;
+  var importantRE = /\s*!important$/;
+  var setProp = function (el, name, val) {
+    /* istanbul ignore if */
+    if (cssVarRE.test(name)) {
+      el.style.setProperty(name, val);
+    } else if (importantRE.test(val)) {
+      el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+    } else {
+      var normalizedName = normalize(name);
+      if (Array.isArray(val)) {
+        // Support values array created by autoprefixer, e.g.
+        // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+        // Set them one by one, and the browser will only set those it can recognize
+        for (var i = 0, len = val.length; i < len; i++) {
+          el.style[normalizedName] = val[i];
+        }
+      } else {
+        el.style[normalizedName] = val;
+      }
     }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-}
+  };
 
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
+  var vendorNames = ['Webkit', 'Moz', 'ms'];
 
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
+  var emptyStyle;
+  var normalize = cached(function (prop) {
+    emptyStyle = emptyStyle || document.createElement('div').style;
+    prop = camelize(prop);
+    if (prop !== 'filter' && (prop in emptyStyle)) {
+      return prop
     }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
+    var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+    for (var i = 0; i < vendorNames.length; i++) {
+      var name = vendorNames[i] + capName;
+      if (name in emptyStyle) {
+        return name
       }
-    } else {
-      refs[key] = ref;
     }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
+  });
 
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
+  function updateStyle (oldVnode, vnode) {
+    var data = vnode.data;
+    var oldData = oldVnode.data;
 
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
+    if (isUndef(data.staticStyle) && isUndef(data.style) &&
+      isUndef(oldData.staticStyle) && isUndef(oldData.style)
+    ) {
+      return
+    }
 
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
-  }
-  return map
-}
+    var cur, name;
+    var el = vnode.elm;
+    var oldStaticStyle = oldData.staticStyle;
+    var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
 
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
+    // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+    var oldStyle = oldStaticStyle || oldStyleBinding;
 
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
+    var style = normalizeStyleBinding(vnode.data.style) || {};
 
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
+    // store normalized style under a different key for next diff
+    // make sure to clone it if it's reactive, since the user likely wants
+    // to mutate it.
+    vnode.data.normalizedStyle = isDef(style.__ob__)
+      ? extend({}, style)
+      : style;
 
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
+    var newStyle = getStyle(vnode, true);
 
-  function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
-        removeNode(childElm);
+    for (name in oldStyle) {
+      if (isUndef(newStyle[name])) {
+        setProp(el, name, '');
       }
     }
-    remove.listeners = listeners;
-    return remove
-  }
-
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
+    for (name in newStyle) {
+      cur = newStyle[name];
+      if (cur !== oldStyle[name]) {
+        // ie9 setting to null has no effect, must use empty string
+        setProp(el, name, cur == null ? '' : cur);
+      }
     }
   }
 
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
+  var style = {
+    create: updateStyle,
+    update: updateStyle
+  };
 
-  var creatingElmInVPre = 0;
+  /*  */
 
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
+  var whitespaceRE = /\s+/;
 
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+  /**
+   * Add class with compatibility for SVG since classList is not supported on
+   * SVG elements in IE
+   */
+  function addClass (el, cls) {
+    /* istanbul ignore if */
+    if (!cls || !(cls = cls.trim())) {
       return
     }
 
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if ("development" !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
+    /* istanbul ignore else */
+    if (el.classList) {
+      if (cls.indexOf(' ') > -1) {
+        cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
+      } else {
+        el.classList.add(cls);
       }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
     } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
+      var cur = " " + (el.getAttribute('class') || '') + " ";
+      if (cur.indexOf(' ' + cls + ' ') < 0) {
+        el.setAttribute('class', (cur + cls).trim());
       }
     }
   }
 
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
+  /**
+   * Remove class with compatibility for SVG since classList is not supported on
+   * SVG elements in IE
+   */
+  function removeClass (el, cls) {
+    /* istanbul ignore if */
+    if (!cls || !(cls = cls.trim())) {
+      return
     }
-  }
 
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
+    /* istanbul ignore else */
+    if (el.classList) {
+      if (cls.indexOf(' ') > -1) {
+        cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
+      } else {
+        el.classList.remove(cls);
       }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
+      if (!el.classList.length) {
+        el.removeAttribute('class');
+      }
+    } else {
+      var cur = " " + (el.getAttribute('class') || '') + " ";
+      var tar = ' ' + cls + ' ';
+      while (cur.indexOf(tar) >= 0) {
+        cur = cur.replace(tar, ' ');
+      }
+      cur = cur.trim();
+      if (cur) {
+        el.setAttribute('class', cur);
       } else {
-        nodeOps.appendChild(parent, elm);
+        el.removeAttribute('class');
       }
     }
   }
 
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+  /*  */
+
+  function resolveTransition (def$$1) {
+    if (!def$$1) {
+      return
+    }
+    /* istanbul ignore else */
+    if (typeof def$$1 === 'object') {
+      var res = {};
+      if (def$$1.css !== false) {
+        extend(res, autoCssTransition(def$$1.name || 'v'));
       }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+      extend(res, def$$1);
+      return res
+    } else if (typeof def$$1 === 'string') {
+      return autoCssTransition(def$$1)
     }
   }
 
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
+  var autoCssTransition = cached(function (name) {
+    return {
+      enterClass: (name + "-enter"),
+      enterToClass: (name + "-enter-to"),
+      enterActiveClass: (name + "-enter-active"),
+      leaveClass: (name + "-leave"),
+      leaveToClass: (name + "-leave-to"),
+      leaveActiveClass: (name + "-leave-active")
     }
-    return isDef(vnode.tag)
-  }
+  });
 
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
-    }
-  }
+  var hasTransition = inBrowser && !isIE9;
+  var TRANSITION = 'transition';
+  var ANIMATION = 'animation';
 
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
-        }
-        ancestor = ancestor.parent;
-      }
+  // Transition property/event sniffing
+  var transitionProp = 'transition';
+  var transitionEndEvent = 'transitionend';
+  var animationProp = 'animation';
+  var animationEndEvent = 'animationend';
+  if (hasTransition) {
+    /* istanbul ignore if */
+    if (window.ontransitionend === undefined &&
+      window.onwebkittransitionend !== undefined
+    ) {
+      transitionProp = 'WebkitTransition';
+      transitionEndEvent = 'webkitTransitionEnd';
     }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
+    if (window.onanimationend === undefined &&
+      window.onwebkitanimationend !== undefined
     ) {
-      nodeOps.setStyleScope(vnode.elm, i);
+      animationProp = 'WebkitAnimation';
+      animationEndEvent = 'webkitAnimationEnd';
     }
   }
 
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
+  // binding to window is necessary to make hot reload work in IE in strict mode
+  var raf = inBrowser
+    ? window.requestAnimationFrame
+      ? window.requestAnimationFrame.bind(window)
+      : setTimeout
+    : /* istanbul ignore next */ function (fn) { return fn(); };
+
+  function nextFrame (fn) {
+    raf(function () {
+      raf(fn);
+    });
   }
 
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
+  function addTransitionClass (el, cls) {
+    var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+    if (transitionClasses.indexOf(cls) < 0) {
+      transitionClasses.push(cls);
+      addClass(el, cls);
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
+  function removeTransitionClass (el, cls) {
+    if (el._transitionClasses) {
+      remove(el._transitionClasses, cls);
     }
+    removeClass(el, cls);
   }
 
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
+  function whenTransitionEnds (
+    el,
+    expectedType,
+    cb
+  ) {
+    var ref = getTransitionInfo(el, expectedType);
+    var type = ref.type;
+    var timeout = ref.timeout;
+    var propCount = ref.propCount;
+    if (!type) { return cb() }
+    var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+    var ended = 0;
+    var end = function () {
+      el.removeEventListener(event, onEnd);
+      cb();
+    };
+    var onEnd = function (e) {
+      if (e.target === el) {
+        if (++ended >= propCount) {
+          end();
+        }
       }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
+    };
+    setTimeout(function () {
+      if (ended < propCount) {
+        end();
       }
-    } else {
-      removeNode(vnode.elm);
-    }
+    }, timeout + 1);
+    el.addEventListener(event, onEnd);
   }
 
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+  var transformRE = /\b(transform|all)(,|$)/;
 
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
+  function getTransitionInfo (el, expectedType) {
+    var styles = window.getComputedStyle(el);
+    // JSDOM may return undefined for transition properties
+    var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+    var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
+    var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+    var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+    var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
+    var animationTimeout = getTimeout(animationDelays, animationDurations);
 
-    {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
+    var type;
+    var timeout = 0;
+    var propCount = 0;
+    /* istanbul ignore if */
+    if (expectedType === TRANSITION) {
+      if (transitionTimeout > 0) {
+        type = TRANSITION;
+        timeout = transitionTimeout;
+        propCount = transitionDurations.length;
+      }
+    } else if (expectedType === ANIMATION) {
+      if (animationTimeout > 0) {
+        type = ANIMATION;
+        timeout = animationTimeout;
+        propCount = animationDurations.length;
       }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    } else {
+      timeout = Math.max(transitionTimeout, animationTimeout);
+      type = timeout > 0
+        ? transitionTimeout > animationTimeout
+          ? TRANSITION
+          : ANIMATION
+        : null;
+      propCount = type
+        ? type === TRANSITION
+          ? transitionDurations.length
+          : animationDurations.length
+        : 0;
+    }
+    var hasTransform =
+      type === TRANSITION &&
+      transformRE.test(styles[transitionProp + 'Property']);
+    return {
+      type: type,
+      timeout: timeout,
+      propCount: propCount,
+      hasTransform: hasTransform
     }
   }
 
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
-        }
-      }
+  function getTimeout (delays, durations) {
+    /* istanbul ignore next */
+    while (delays.length < durations.length) {
+      delays = delays.concat(delays);
     }
+
+    return Math.max.apply(null, durations.map(function (d, i) {
+      return toMs(d) + toMs(delays[i])
+    }))
   }
 
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
+  // Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+  // in a locale-dependent way, using a comma instead of a dot.
+  // If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+  // as a floor function) causing unexpected behaviors
+  function toMs (s) {
+    return Number(s.slice(0, -1).replace(',', '.')) * 1000
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
-    if (oldVnode === vnode) {
-      return
-    }
+  /*  */
 
-    var elm = vnode.elm = oldVnode.elm;
+  function enter (vnode, toggleDisplay) {
+    var el = vnode.elm;
 
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
+    // call leave callback now
+    if (isDef(el._leaveCb)) {
+      el._leaveCb.cancelled = true;
+      el._leaveCb();
     }
 
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
+    var data = resolveTransition(vnode.data.transition);
+    if (isUndef(data)) {
       return
     }
 
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
+    /* istanbul ignore if */
+    if (isDef(el._enterCb) || el.nodeType !== 1) {
+      return
     }
 
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+    var css = data.css;
+    var type = data.type;
+    var enterClass = data.enterClass;
+    var enterToClass = data.enterToClass;
+    var enterActiveClass = data.enterActiveClass;
+    var appearClass = data.appearClass;
+    var appearToClass = data.appearToClass;
+    var appearActiveClass = data.appearActiveClass;
+    var beforeEnter = data.beforeEnter;
+    var enter = data.enter;
+    var afterEnter = data.afterEnter;
+    var enterCancelled = data.enterCancelled;
+    var beforeAppear = data.beforeAppear;
+    var appear = data.appear;
+    var afterAppear = data.afterAppear;
+    var appearCancelled = data.appearCancelled;
+    var duration = data.duration;
+
+    // activeInstance will always be the <transition> component managing this
+    // transition. One edge case to check is when the <transition> is placed
+    // as the root node of a child component. In that case we need to check
+    // <transition>'s parent for appear check.
+    var context = activeInstance;
+    var transitionNode = activeInstance.$vnode;
+    while (transitionNode && transitionNode.parent) {
+      transitionNode = transitionNode.parent;
+      context = transitionNode.context;
+    }
+
+    var isAppear = !context._isMounted || !vnode.isRootInsert;
+
+    if (isAppear && !appear && appear !== '') {
+      return
     }
-  }
 
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
+    var startClass = isAppear && appearClass
+      ? appearClass
+      : enterClass;
+    var activeClass = isAppear && appearActiveClass
+      ? appearActiveClass
+      : enterActiveClass;
+    var toClass = isAppear && appearToClass
+      ? appearToClass
+      : enterToClass;
+
+    var beforeEnterHook = isAppear
+      ? (beforeAppear || beforeEnter)
+      : beforeEnter;
+    var enterHook = isAppear
+      ? (typeof appear === 'function' ? appear : enter)
+      : enter;
+    var afterEnterHook = isAppear
+      ? (afterAppear || afterEnter)
+      : afterEnter;
+    var enterCancelledHook = isAppear
+      ? (appearCancelled || enterCancelled)
+      : enterCancelled;
+
+    var explicitEnterDuration = toNumber(
+      isObject(duration)
+        ? duration.enter
+        : duration
+    );
 
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+    if (explicitEnterDuration != null) {
+      checkDuration(explicitEnterDuration, 'enter', vnode);
+    }
 
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
+    var expectsCSS = css !== false && !isIE9;
+    var userWantsControl = getHookArgumentsLength(enterHook);
 
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
+    var cb = el._enterCb = once(function () {
+      if (expectsCSS) {
+        removeTransitionClass(el, toClass);
+        removeTransitionClass(el, activeClass);
       }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
+      if (cb.cancelled) {
+        if (expectsCSS) {
+          removeTransitionClass(el, startClass);
+        }
+        enterCancelledHook && enterCancelledHook(el);
+      } else {
+        afterEnterHook && afterEnterHook(el);
       }
+      el._enterCb = null;
+    });
+
+    if (!vnode.data.show) {
+      // remove pending leave element on enter by injecting an insert hook
+      mergeVNodeHook(vnode, 'insert', function () {
+        var parent = el.parentNode;
+        var pendingNode = parent && parent._pending && parent._pending[vnode.key];
+        if (pendingNode &&
+          pendingNode.tag === vnode.tag &&
+          pendingNode.elm._leaveCb
+        ) {
+          pendingNode.elm._leaveCb();
+        }
+        enterHook && enterHook(el, cb);
+      });
     }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
+
+    // start enter transition
+    beforeEnterHook && beforeEnterHook(el);
+    if (expectsCSS) {
+      addTransitionClass(el, startClass);
+      addTransitionClass(el, activeClass);
+      nextFrame(function () {
+        removeTransitionClass(el, startClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, toClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitEnterDuration)) {
+              setTimeout(cb, explicitEnterDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
             }
           }
         }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
+      });
     }
-    return true
-  }
 
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
+    if (vnode.data.show) {
+      toggleDisplay && toggleDisplay();
+      enterHook && enterHook(el, cb);
+    }
+
+    if (!expectsCSS && !userWantsControl) {
+      cb();
     }
   }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+  function leave (vnode, rm) {
+    var el = vnode.elm;
+
+    // call enter callback now
+    if (isDef(el._enterCb)) {
+      el._enterCb.cancelled = true;
+      el._enterCb();
+    }
+
+    var data = resolveTransition(vnode.data.transition);
+    if (isUndef(data) || el.nodeType !== 1) {
+      return rm()
+    }
+
+    /* istanbul ignore if */
+    if (isDef(el._leaveCb)) {
       return
     }
 
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
+    var css = data.css;
+    var type = data.type;
+    var leaveClass = data.leaveClass;
+    var leaveToClass = data.leaveToClass;
+    var leaveActiveClass = data.leaveActiveClass;
+    var beforeLeave = data.beforeLeave;
+    var leave = data.leave;
+    var afterLeave = data.afterLeave;
+    var leaveCancelled = data.leaveCancelled;
+    var delayLeave = data.delayLeave;
+    var duration = data.duration;
+
+    var expectsCSS = css !== false && !isIE9;
+    var userWantsControl = getHookArgumentsLength(leave);
+
+    var explicitLeaveDuration = toNumber(
+      isObject(duration)
+        ? duration.leave
+        : duration
+    );
 
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
+    if (isDef(explicitLeaveDuration)) {
+      checkDuration(explicitLeaveDuration, 'leave', vnode);
+    }
 
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
+    var cb = el._leaveCb = once(function () {
+      if (el.parentNode && el.parentNode._pending) {
+        el.parentNode._pending[vnode.key] = null;
+      }
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveToClass);
+        removeTransitionClass(el, leaveActiveClass);
+      }
+      if (cb.cancelled) {
+        if (expectsCSS) {
+          removeTransitionClass(el, leaveClass);
+        }
+        leaveCancelled && leaveCancelled(el);
+      } else {
+        rm();
+        afterLeave && afterLeave(el);
+      }
+      el._leaveCb = null;
+    });
 
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
+    if (delayLeave) {
+      delayLeave(performLeave);
+    } else {
+      performLeave();
+    }
 
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
+    function performLeave () {
+      // the delayed leave may have already been cancelled
+      if (cb.cancelled) {
+        return
+      }
+      // record leaving element
+      if (!vnode.data.show && el.parentNode) {
+        (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+      }
+      beforeLeave && beforeLeave(el);
+      if (expectsCSS) {
+        addTransitionClass(el, leaveClass);
+        addTransitionClass(el, leaveActiveClass);
+        nextFrame(function () {
+          removeTransitionClass(el, leaveClass);
+          if (!cb.cancelled) {
+            addTransitionClass(el, leaveToClass);
+            if (!userWantsControl) {
+              if (isValidDuration(explicitLeaveDuration)) {
+                setTimeout(cb, explicitLeaveDuration);
+              } else {
+                whenTransitionEnds(el, type, cb);
               }
-            } else {
-              registerRef(ancestor);
             }
-            ancestor = ancestor.parent;
           }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
+        });
+      }
+      leave && leave(el, cb);
+      if (!expectsCSS && !userWantsControl) {
+        cb();
       }
     }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
   }
-}
-
-/*  */
 
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
+  // only used in dev mode
+  function checkDuration (val, name, vnode) {
+    if (typeof val !== 'number') {
+      warn(
+        "<transition> explicit " + name + " duration is not a valid number - " +
+        "got " + (JSON.stringify(val)) + ".",
+        vnode.context
+      );
+    } else if (isNaN(val)) {
+      warn(
+        "<transition> explicit " + name + " duration is NaN - " +
+        'the duration expression might be incorrect.',
+        vnode.context
+      );
+    }
   }
-}
 
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
+  function isValidDuration (val) {
+    return typeof val === 'number' && !isNaN(val)
   }
-}
-
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
 
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
+  /**
+   * Normalize a transition hook's argument length. The hook may be:
+   * - a merged hook (invoker) with the original in .fns
+   * - a wrapped component method (check ._length)
+   * - a plain function (.length)
+   */
+  function getHookArgumentsLength (fn) {
+    if (isUndef(fn)) {
+      return false
     }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
+    var invokerFns = fn.fns;
+    if (isDef(invokerFns)) {
+      // invoker
+      return getHookArgumentsLength(
+        Array.isArray(invokerFns)
+          ? invokerFns[0]
+          : invokerFns
+      )
     } else {
-      callInsert();
+      return (fn._length || fn.length) > 1
     }
   }
 
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
+  function _enter (_, vnode) {
+    if (vnode.data.show !== true) {
+      enter(vnode);
     }
   }
-}
 
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
+  var transition = inBrowser ? {
+    create: _enter,
+    activate: _enter,
+    remove: function remove$$1 (vnode, rm) {
+      /* istanbul ignore else */
+      if (vnode.data.show !== true) {
+        leave(vnode, rm);
+      } else {
+        rm();
+      }
     }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  // $flow-disable-line
-  return res
-}
+  } : {};
 
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
+  var platformModules = [
+    attrs,
+    klass,
+    events,
+    domProps,
+    style,
+    transition
+  ];
 
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
-    }
-  }
-}
+  /*  */
 
-var baseModules = [
-  ref,
-  directives
-]
+  // the directive module should be applied last, after all
+  // built-in modules have been applied.
+  var modules = platformModules.concat(baseModules);
 
-/*  */
+  var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
 
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
+  /**
+   * Not type checking this file because flow doesn't like attaching
+   * properties to Elements.
+   */
 
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
   /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
+  if (isIE9) {
+    // http://www.matts411.com/post/internet-explorer-9-oninput/
+    document.addEventListener('selectionchange', function () {
+      var el = document.activeElement;
+      if (el && el.vmodel) {
+        trigger(el, 'input');
       }
-    }
+    });
   }
-}
 
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
+  var directive = {
+    inserted: function inserted (el, binding, vnode, oldVnode) {
+      if (vnode.tag === 'select') {
+        // #6903
+        if (oldVnode.elm && !oldVnode.elm._vOptions) {
+          mergeVNodeHook(vnode, 'postpatch', function () {
+            directive.componentUpdated(el, binding, vnode);
+          });
+        } else {
+          setSelected(el, binding, vnode.context);
+        }
+        el._vOptions = [].map.call(el.options, getValue);
+      } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+        el._vModifiers = binding.modifiers;
+        if (!binding.modifiers.lazy) {
+          el.addEventListener('compositionstart', onCompositionStart);
+          el.addEventListener('compositionend', onCompositionEnd);
+          // Safari < 10.2 & UIWebView doesn't fire compositionend when
+          // switching focus before confirming composition choice
+          // this also fixes the issue where some browsers e.g. iOS Chrome
+          // fires "change" instead of "input" on autocomplete.
+          el.addEventListener('change', onCompositionEnd);
+          /* istanbul ignore if */
+          if (isIE9) {
+            el.vmodel = true;
+          }
+        }
+      }
+    },
+
+    componentUpdated: function componentUpdated (el, binding, vnode) {
+      if (vnode.tag === 'select') {
+        setSelected(el, binding, vnode.context);
+        // in case the options rendered by v-for have changed,
+        // it's possible that the value is out-of-sync with the rendered options.
+        // detect such cases and filter out values that no longer has a matching
+        // option in the DOM.
+        var prevOptions = el._vOptions;
+        var curOptions = el._vOptions = [].map.call(el.options, getValue);
+        if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
+          // trigger change event if
+          // no matching option found for at least one value
+          var needReset = el.multiple
+            ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+            : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+          if (needReset) {
+            trigger(el, 'change');
+          }
+        }
+      }
     }
-  } else {
-    baseSetAttr(el, key, value);
-  }
-}
+  };
 
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
+  function setSelected (el, binding, vm) {
+    actuallySetSelected(el, binding, vm);
     /* istanbul ignore if */
-    if (
-      isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
-      key === 'placeholder' && !el.__ieph
-    ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
+    if (isIE || isEdge) {
+      setTimeout(function () {
+        actuallySetSelected(el, binding, vm);
+      }, 0);
     }
-    el.setAttribute(key, value);
   }
-}
 
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-}
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-}
-
-/*  */
-
-var validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters (exp) {
-  var inSingle = false;
-  var inDouble = false;
-  var inTemplateString = false;
-  var inRegex = false;
-  var curly = 0;
-  var square = 0;
-  var paren = 0;
-  var lastFilterIndex = 0;
-  var c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
-    } else if (
-      c === 0x7C && // pipe
-      exp.charCodeAt(i + 1) !== 0x7C &&
-      exp.charCodeAt(i - 1) !== 0x7C &&
-      !curly && !square && !paren
-    ) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
-      }
-    } else {
-      switch (c) {
-        case 0x22: inDouble = true; break         // "
-        case 0x27: inSingle = true; break         // '
-        case 0x60: inTemplateString = true; break // `
-        case 0x28: paren++; break                 // (
-        case 0x29: paren--; break                 // )
-        case 0x5B: square++; break                // [
-        case 0x5D: square--; break                // ]
-        case 0x7B: curly++; break                 // {
-        case 0x7D: curly--; break                 // }
-      }
-      if (c === 0x2f) { // /
-        var j = i - 1;
-        var p = (void 0);
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') { break }
+  function actuallySetSelected (el, binding, vm) {
+    var value = binding.value;
+    var isMultiple = el.multiple;
+    if (isMultiple && !Array.isArray(value)) {
+      warn(
+        "<select multiple v-model=\"" + (binding.expression) + "\"> " +
+        "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
+        vm
+      );
+      return
+    }
+    var selected, option;
+    for (var i = 0, l = el.options.length; i < l; i++) {
+      option = el.options[i];
+      if (isMultiple) {
+        selected = looseIndexOf(value, getValue(option)) > -1;
+        if (option.selected !== selected) {
+          option.selected = selected;
         }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
+      } else {
+        if (looseEqual(getValue(option), value)) {
+          if (el.selectedIndex !== i) {
+            el.selectedIndex = i;
+          }
+          return
         }
       }
     }
+    if (!isMultiple) {
+      el.selectedIndex = -1;
+    }
   }
 
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
+  function hasNoMatchingOption (value, options) {
+    return options.every(function (o) { return !looseEqual(o, value); })
   }
 
-  function pushFilter () {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
+  function getValue (option) {
+    return '_value' in option
+      ? option._value
+      : option.value
   }
 
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
-    }
+  function onCompositionStart (e) {
+    e.target.composing = true;
   }
 
-  return expression
-}
-
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
-  }
-}
-
-/*  */
-
-function baseWarn (msg) {
-  console.error(("[Vue compiler]: " + msg));
-}
-
-function pluckModuleFunction (
-  modules,
-  key
-) {
-  return modules
-    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
-    : []
-}
-
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-// add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
-function addDirective (
-  el,
-  name,
-  rawName,
-  value,
-  arg,
-  modifiers
-) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
-  el.plain = false;
-}
-
-function addHandler (
-  el,
-  name,
-  value,
-  modifiers,
-  important,
-  warn
-) {
-  modifiers = modifiers || emptyObject;
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (
-    "development" !== 'production' && warn &&
-    modifiers.prevent && modifiers.passive
-  ) {
-    warn(
-      'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
-    );
+  function onCompositionEnd (e) {
+    // prevent triggering an input event for no reason
+    if (!e.target.composing) { return }
+    e.target.composing = false;
+    trigger(e.target, 'input');
   }
 
-  // check capture modifier
-  if (modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
+  function trigger (el, type) {
+    var e = document.createEvent('HTMLEvents');
+    e.initEvent(type, true, true);
+    el.dispatchEvent(e);
   }
-  /* istanbul ignore if */
-  if (modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
+
+  /*  */
+
+  // recursively search for possible transition defined inside the component root
+  function locateNode (vnode) {
+    return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+      ? locateNode(vnode.componentInstance._vnode)
+      : vnode
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
+  var show = {
+    bind: function bind (el, ref, vnode) {
+      var value = ref.value;
+
+      vnode = locateNode(vnode);
+      var transition$$1 = vnode.data && vnode.data.transition;
+      var originalDisplay = el.__vOriginalDisplay =
+        el.style.display === 'none' ? '' : el.style.display;
+      if (value && transition$$1) {
+        vnode.data.show = true;
+        enter(vnode, function () {
+          el.style.display = originalDisplay;
+        });
+      } else {
+        el.style.display = value ? originalDisplay : 'none';
+      }
+    },
+
+    update: function update (el, ref, vnode) {
+      var value = ref.value;
+      var oldValue = ref.oldValue;
+
+      /* istanbul ignore if */
+      if (!value === !oldValue) { return }
+      vnode = locateNode(vnode);
+      var transition$$1 = vnode.data && vnode.data.transition;
+      if (transition$$1) {
+        vnode.data.show = true;
+        if (value) {
+          enter(vnode, function () {
+            el.style.display = el.__vOriginalDisplay;
+          });
+        } else {
+          leave(vnode, function () {
+            el.style.display = 'none';
+          });
+        }
+      } else {
+        el.style.display = value ? el.__vOriginalDisplay : 'none';
+      }
+    },
+
+    unbind: function unbind (
+      el,
+      binding,
+      vnode,
+      oldVnode,
+      isDestroy
+    ) {
+      if (!isDestroy) {
+        el.style.display = el.__vOriginalDisplay;
+      }
+    }
+  };
+
+  var platformDirectives = {
+    model: directive,
+    show: show
+  };
+
+  /*  */
+
+  var transitionProps = {
+    name: String,
+    appear: Boolean,
+    css: Boolean,
+    mode: String,
+    type: String,
+    enterClass: String,
+    leaveClass: String,
+    enterToClass: String,
+    leaveToClass: String,
+    enterActiveClass: String,
+    leaveActiveClass: String,
+    appearClass: String,
+    appearActiveClass: String,
+    appearToClass: String,
+    duration: [Number, String, Object]
+  };
+
+  // in case the child is also an abstract component, e.g. <keep-alive>
+  // we want to recursively retrieve the real component to be rendered
+  function getRealChild (vnode) {
+    var compOptions = vnode && vnode.componentOptions;
+    if (compOptions && compOptions.Ctor.options.abstract) {
+      return getRealChild(getFirstComponentChild(compOptions.children))
+    } else {
+      return vnode
     }
   }
 
-  var events;
-  if (modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
+  function extractTransitionData (comp) {
+    var data = {};
+    var options = comp.$options;
+    // props
+    for (var key in options.propsData) {
+      data[key] = comp[key];
+    }
+    // events.
+    // extract listeners and pass them directly to the transition methods
+    var listeners = options._parentListeners;
+    for (var key$1 in listeners) {
+      data[camelize(key$1)] = listeners[key$1];
+    }
+    return data
   }
 
-  var newHandler = {
-    value: value.trim()
-  };
-  if (modifiers !== emptyObject) {
-    newHandler.modifiers = modifiers;
+  function placeholder (h, rawChild) {
+    if (/\d-keep-alive$/.test(rawChild.tag)) {
+      return h('keep-alive', {
+        props: rawChild.componentOptions.propsData
+      })
+    }
   }
 
-  var handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-
-  el.plain = false;
-}
-
-function getBindingAttr (
-  el,
-  name,
-  getStatic
-) {
-  var dynamicValue =
-    getAndRemoveAttr(el, ':' + name) ||
-    getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue)
-  } else if (getStatic !== false) {
-    var staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue)
-    }
-  }
-}
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-function getAndRemoveAttr (
-  el,
-  name,
-  removeFromMap
-) {
-  var val;
-  if ((val = el.attrsMap[name]) != null) {
-    var list = el.attrsList;
-    for (var i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break
+  function hasParentTransition (vnode) {
+    while ((vnode = vnode.parent)) {
+      if (vnode.data.transition) {
+        return true
       }
     }
   }
-  if (removeFromMap) {
-    delete el.attrsMap[name];
-  }
-  return val
-}
 
-/*  */
+  function isSameChild (child, oldChild) {
+    return oldChild.key === child.key && oldChild.tag === child.tag
+  }
 
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-      "? " + baseValueExpression + ".trim()" +
-      ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-  };
-}
+  var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
 
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var res = parseModel(value);
-  if (res.key === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
-  }
-}
-
-/**
- * Parse a v-model expression into a base path and a final key segment.
- * Handles both dot-path and possible square brackets.
- *
- * Possible cases:
- *
- * - test
- * - test[key]
- * - test[test1[key]]
- * - test["a"][key]
- * - xxx.test[a[a].test1[key]]
- * - test.xxx.a["asa"][test1[key]]
- *
- */
+  var isVShowDirective = function (d) { return d.name === 'show'; };
 
-var len;
-var str;
-var chr;
-var index$1;
-var expressionPos;
-var expressionEndPos;
+  var Transition = {
+    name: 'transition',
+    props: transitionProps,
+    abstract: true,
 
+    render: function render (h) {
+      var this$1 = this;
 
+      var children = this.$slots.default;
+      if (!children) {
+        return
+      }
 
-function parseModel (val) {
-  // Fix https://github.com/vuejs/vue/pull/7730
-  // allow v-model="obj.val " (trailing whitespace)
-  val = val.trim();
-  len = val.length;
+      // filter out text nodes (possible whitespaces)
+      children = children.filter(isNotTextNode);
+      /* istanbul ignore if */
+      if (!children.length) {
+        return
+      }
 
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    index$1 = val.lastIndexOf('.');
-    if (index$1 > -1) {
-      return {
-        exp: val.slice(0, index$1),
-        key: '"' + val.slice(index$1 + 1) + '"'
+      // warn multiple elements
+      if (children.length > 1) {
+        warn(
+          '<transition> can only be used on a single element. Use ' +
+          '<transition-group> for lists.',
+          this.$parent
+        );
       }
-    } else {
-      return {
-        exp: val,
-        key: null
+
+      var mode = this.mode;
+
+      // warn invalid mode
+      if (mode && mode !== 'in-out' && mode !== 'out-in'
+      ) {
+        warn(
+          'invalid <transition> mode: ' + mode,
+          this.$parent
+        );
       }
-    }
-  }
 
-  str = val;
-  index$1 = expressionPos = expressionEndPos = 0;
+      var rawChild = children[0];
 
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
+      // if this is a component root node and the component's
+      // parent container node also has transition, skip.
+      if (hasParentTransition(this.$vnode)) {
+        return rawChild
+      }
 
-  return {
-    exp: val.slice(0, expressionPos),
-    key: val.slice(expressionPos + 1, expressionEndPos)
-  }
-}
+      // apply transition data to child
+      // use getRealChild() to ignore abstract components e.g. keep-alive
+      var child = getRealChild(rawChild);
+      /* istanbul ignore if */
+      if (!child) {
+        return rawChild
+      }
 
-function next () {
-  return str.charCodeAt(++index$1)
-}
+      if (this._leaving) {
+        return placeholder(h, rawChild)
+      }
 
-function eof () {
-  return index$1 >= len
-}
+      // ensure a key that is unique to the vnode type and to this transition
+      // component instance. This key will be used to remove pending leaving nodes
+      // during entering.
+      var id = "__transition-" + (this._uid) + "-";
+      child.key = child.key == null
+        ? child.isComment
+          ? id + 'comment'
+          : id + child.tag
+        : isPrimitive(child.key)
+          ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+          : child.key;
 
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
+      var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+      var oldRawChild = this._vnode;
+      var oldChild = getRealChild(oldRawChild);
 
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index$1;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index$1;
-      break
-    }
-  }
-}
+      // mark v-show
+      // so that the transition module can hand over the control to the directive
+      if (child.data.directives && child.data.directives.some(isVShowDirective)) {
+        child.data.show = true;
+      }
+
+      if (
+        oldChild &&
+        oldChild.data &&
+        !isSameChild(child, oldChild) &&
+        !isAsyncPlaceholder(oldChild) &&
+        // #6687 component root is a comment node
+        !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+      ) {
+        // replace old child transition data with fresh one
+        // important for dynamic transitions!
+        var oldData = oldChild.data.transition = extend({}, data);
+        // handle transition mode
+        if (mode === 'out-in') {
+          // return placeholder node and queue update when leave finishes
+          this._leaving = true;
+          mergeVNodeHook(oldData, 'afterLeave', function () {
+            this$1._leaving = false;
+            this$1.$forceUpdate();
+          });
+          return placeholder(h, rawChild)
+        } else if (mode === 'in-out') {
+          if (isAsyncPlaceholder(child)) {
+            return oldRawChild
+          }
+          var delayedLeave;
+          var performLeave = function () { delayedLeave(); };
+          mergeVNodeHook(data, 'afterEnter', performLeave);
+          mergeVNodeHook(data, 'enterCancelled', performLeave);
+          mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+        }
+      }
 
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
+      return rawChild
     }
-  }
-}
+  };
 
-/*  */
+  /*  */
 
-var warn$1;
+  var props = extend({
+    tag: String,
+    moveClass: String
+  }, transitionProps);
 
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
+  delete props.mode;
 
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
+  var TransitionGroup = {
+    props: props,
 
-  {
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
-    }
-  }
+    beforeMount: function beforeMount () {
+      var this$1 = this;
 
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else {
-    warn$1(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
+      var update = this._update;
+      this._update = function (vnode, hydrating) {
+        // force removing pass
+        this$1.__patch__(
+          this$1._vnode,
+          this$1.kept,
+          false, // hydrating
+          true // removeOnly (!important, avoids unnecessary moves)
+        );
+        this$1._vnode = this$1.kept;
+        update.call(this$1, vnode, hydrating);
+      };
+    },
 
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-    "?_i(" + value + "," + valueBinding + ")>-1" + (
-      trueValueBinding === 'true'
-        ? (":(" + value + ")")
-        : (":_q(" + value + "," + trueValueBinding + ")")
-    )
-  );
-  addHandler(el, 'change',
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
-      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-
-  // warn if v-bind:value conflicts with v-model
-  // except for inputs with v-bind:type
-  {
-    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (value$1 && !typeBinding) {
-      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
-  }
+    render: function render (h) {
+      var tag = this.tag || this.$vnode.data.tag || 'span';
+      var map = Object.create(null);
+      var prevChildren = this.prevChildren = this.children;
+      var rawChildren = this.$slots.default || [];
+      var children = this.children = [];
+      var transitionData = extractTransitionData(this);
+
+      for (var i = 0; i < rawChildren.length; i++) {
+        var c = rawChildren[i];
+        if (c.tag) {
+          if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+            children.push(c);
+            map[c.key] = c
+            ;(c.data || (c.data = {})).transition = transitionData;
+          } else {
+            var opts = c.componentOptions;
+            var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+            warn(("<transition-group> children must be keyed: <" + name + ">"));
+          }
+        }
+      }
 
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
+      if (prevChildren) {
+        var kept = [];
+        var removed = [];
+        for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
+          var c$1 = prevChildren[i$1];
+          c$1.data.transition = transitionData;
+          c$1.data.pos = c$1.elm.getBoundingClientRect();
+          if (map[c$1.key]) {
+            kept.push(c$1);
+          } else {
+            removed.push(c$1);
+          }
+        }
+        this.kept = h(tag, null, kept);
+        this.removed = removed;
+      }
 
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
+      return h(tag, null, children)
+    },
 
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
+    updated: function updated () {
+      var children = this.prevChildren;
+      var moveClass = this.moveClass || ((this.name || 'v') + '-move');
+      if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+        return
+      }
 
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
+      // we divide the work into three loops to avoid mixing DOM reads and writes
+      // in each iteration - which helps prevent layout thrashing.
+      children.forEach(callPendingCbs);
+      children.forEach(recordPosition);
+      children.forEach(applyTranslation);
 
-/*  */
+      // force reflow to put everything in position
+      // assign to this to avoid being removed in tree-shaking
+      // $flow-disable-line
+      this._reflow = document.body.offsetHeight;
+
+      children.forEach(function (c) {
+        if (c.data.moved) {
+          var el = c.elm;
+          var s = el.style;
+          addTransitionClass(el, moveClass);
+          s.transform = s.WebkitTransform = s.transitionDuration = '';
+          el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+            if (e && e.target !== el) {
+              return
+            }
+            if (!e || /transform$/.test(e.propertyName)) {
+              el.removeEventListener(transitionEndEvent, cb);
+              el._moveCb = null;
+              removeTransitionClass(el, moveClass);
+            }
+          });
+        }
+      });
+    },
 
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler (handler, event, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  once$$1,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-}
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
+    methods: {
+      hasMove: function hasMove (el, moveClass) {
+        /* istanbul ignore if */
+        if (!hasTransition) {
+          return false
+        }
+        /* istanbul ignore if */
+        if (this._hasMove) {
+          return this._hasMove
+        }
+        // Detect whether an element with the move class applied has
+        // CSS transitions. Since the element may be inside an entering
+        // transition at this very moment, we make a clone of it and remove
+        // all other transition classes applied to ensure only the move class
+        // is applied.
+        var clone = el.cloneNode();
+        if (el._transitionClasses) {
+          el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+        }
+        addClass(clone, moveClass);
+        clone.style.display = 'none';
+        this.$el.appendChild(clone);
+        var info = getTransitionInfo(clone);
+        this.$el.removeChild(clone);
+        return (this._hasMove = info.hasTransform)
       }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
     }
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-}
-
-/*  */
+  };
 
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+  function callPendingCbs (c) {
+    /* istanbul ignore if */
+    if (c.elm._moveCb) {
+      c.elm._moveCb();
     }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
-      }
+    /* istanbul ignore if */
+    if (c.elm._enterCb) {
+      c.elm._enterCb();
     }
   }
 
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
+  function recordPosition (c) {
+    c.data.newPos = c.elm.getBoundingClientRect();
   }
 
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
+  function applyTranslation (c) {
+    var oldPos = c.data.pos;
+    var newPos = c.data.newPos;
+    var dx = oldPos.left - newPos.left;
+    var dy = oldPos.top - newPos.top;
+    if (dx || dy) {
+      c.data.moved = true;
+      var s = c.elm.style;
+      s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
+      s.transitionDuration = '0s';
     }
   }
-  return res
-}
 
-/*  */
+  var platformComponents = {
+    Transition: Transition,
+    TransitionGroup: TransitionGroup
+  };
 
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
+  /*  */
 
-var vendorNames = ['Webkit', 'Moz', 'ms'];
+  // install platform specific utils
+  Vue.config.mustUseProp = mustUseProp;
+  Vue.config.isReservedTag = isReservedTag;
+  Vue.config.isReservedAttr = isReservedAttr;
+  Vue.config.getTagNamespace = getTagNamespace;
+  Vue.config.isUnknownElement = isUnknownElement;
 
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
+  // install platform runtime directives & components
+  extend(Vue.options.directives, platformDirectives);
+  extend(Vue.options.components, platformComponents);
 
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
+  // install platform patch function
+  Vue.prototype.__patch__ = inBrowser ? patch : noop;
 
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  // public mount method
+  Vue.prototype.$mount = function (
+    el,
+    hydrating
   ) {
-    return
+    el = el && inBrowser ? query(el) : undefined;
+    return mountComponent(this, el, hydrating)
+  };
+
+  // devtools global hook
+  /* istanbul ignore next */
+  if (inBrowser) {
+    setTimeout(function () {
+      if (config.devtools) {
+        if (devtools) {
+          devtools.emit('init', Vue);
+        } else if (
+          isChrome
+        ) {
+          console[console.info ? 'info' : 'log'](
+            'Download the Vue Devtools extension for a better development experience:\n' +
+            'https://github.com/vuejs/vue-devtools'
+          );
+        }
+      }
+      if (config.productionTip !== false &&
+        typeof console !== 'undefined'
+      ) {
+        console[console.info ? 'info' : 'log'](
+          "You are running Vue in development mode.\n" +
+          "Make sure to turn on production mode when deploying for production.\n" +
+          "See more tips at https://vuejs.org/guide/deployment.html"
+        );
+      }
+    }, 0);
   }
 
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+  /*  */
 
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
+  var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
+  var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
-  var style = normalizeStyleBinding(vnode.data.style) || {};
+  var buildRegex = cached(function (delimiters) {
+    var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+    var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+    return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+  });
 
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
 
-  var newStyle = getStyle(vnode, true);
 
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
+  function parseText (
+    text,
+    delimiters
+  ) {
+    var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+    if (!tagRE.test(text)) {
+      return
     }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-}
-
-/*  */
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
+    var tokens = [];
+    var rawTokens = [];
+    var lastIndex = tagRE.lastIndex = 0;
+    var match, index, tokenValue;
+    while ((match = tagRE.exec(text))) {
+      index = match.index;
+      // push text token
+      if (index > lastIndex) {
+        rawTokens.push(tokenValue = text.slice(lastIndex, index));
+        tokens.push(JSON.stringify(tokenValue));
+      }
+      // tag token
+      var exp = parseFilters(match[1].trim());
+      tokens.push(("_s(" + exp + ")"));
+      rawTokens.push({ '@binding': exp });
+      lastIndex = index + match[0].length;
+    }
+    if (lastIndex < text.length) {
+      rawTokens.push(tokenValue = text.slice(lastIndex));
+      tokens.push(JSON.stringify(tokenValue));
     }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
+    return {
+      expression: tokens.join('+'),
+      tokens: rawTokens
     }
   }
-}
 
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
+  /*  */
 
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
+  function transformNode (el, options) {
+    var warn = options.warn || baseWarn;
+    var staticClass = getAndRemoveAttr(el, 'class');
+    if (staticClass) {
+      var res = parseText(staticClass, options.delimiters);
+      if (res) {
+        warn(
+          "class=\"" + staticClass + "\": " +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div class="{{ val }}">, use <div :class="val">.'
+        );
+      }
     }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
+    if (staticClass) {
+      el.staticClass = JSON.stringify(staticClass);
     }
-  }
-}
-
-/*  */
-
-function resolveTransition (def) {
-  if (!def) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def === 'object') {
-    var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+    if (classBinding) {
+      el.classBinding = classBinding;
     }
-    extend(res, def);
-    return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
   }
-}
 
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
-
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
+  function genData (el) {
+    var data = '';
+    if (el.staticClass) {
+      data += "staticClass:" + (el.staticClass) + ",";
     }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
+    if (el.classBinding) {
+      data += "class:" + (el.classBinding) + ",";
     }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
+    return data
   }
 
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if ("development" !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
+  var klass$1 = {
+    staticKeys: ['staticClass'],
+    transformNode: transformNode,
+    genData: genData
+  };
 
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
+  /*  */
 
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
+  function transformNode$1 (el, options) {
+    var warn = options.warn || baseWarn;
+    var staticStyle = getAndRemoveAttr(el, 'style');
+    if (staticStyle) {
+      /* istanbul ignore if */
+      {
+        var res = parseText(staticStyle, options.delimiters);
+        if (res) {
+          warn(
+            "style=\"" + staticStyle + "\": " +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div style="{{ val }}">, use <div :style="val">.'
+          );
+        }
       }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
+      el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
     }
-    el._enterCb = null;
-  });
 
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
+    var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+    if (styleBinding) {
+      el.styleBinding = styleBinding;
+    }
   }
 
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
+  function genData$1 (el) {
+    var data = '';
+    if (el.staticStyle) {
+      data += "staticStyle:" + (el.staticStyle) + ",";
+    }
+    if (el.styleBinding) {
+      data += "style:(" + (el.styleBinding) + "),";
+    }
+    return data
   }
 
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
+  var style$1 = {
+    staticKeys: ['staticStyle'],
+    transformNode: transformNode$1,
+    genData: genData$1
+  };
 
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
+  /*  */
 
-function leave (vnode, rm) {
-  var el = vnode.elm;
+  var decoder;
 
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
+  var he = {
+    decode: function decode (html) {
+      decoder = decoder || document.createElement('div');
+      decoder.innerHTML = html;
+      return decoder.textContent
+    }
+  };
 
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
+  /*  */
 
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
+  var isUnaryTag = makeMap(
+    'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+    'link,meta,param,source,track,wbr'
   );
 
-  if ("development" !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
+  // Elements that you can, intentionally, leave open
+  // (and which close themselves)
+  var canBeLeftOpenTag = makeMap(
+    'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+  );
 
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
+  // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+  // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+  var isNonPhrasingTag = makeMap(
+    'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+    'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+    'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+    'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+    'title,tr,track'
+  );
 
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
+  /**
+   * Not type-checking this file because it's mostly vendor code.
+   */
 
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
+  // Regular Expressions for parsing tags and attributes
+  var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+  // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+  // but for Vue templates we can enforce a simple charset
+  var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+  var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+  var startTagOpen = new RegExp(("^<" + qnameCapture));
+  var startTagClose = /^\s*(\/?)>/;
+  var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+  var doctype = /^<!DOCTYPE [^>]+>/i;
+  // #7298: escape - to avoid being pased as HTML comment when inlined in page
+  var comment = /^<!\--/;
+  var conditionalComment = /^<!\[/;
+
+  // Special Elements (can contain anything)
+  var isPlainTextElement = makeMap('script,style,textarea', true);
+  var reCache = {};
+
+  var decodingMap = {
+    '&lt;': '<',
+    '&gt;': '>',
+    '&quot;': '"',
+    '&amp;': '&',
+    '&#10;': '\n',
+    '&#9;': '\t'
+  };
+  var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+  // #5992
+  var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+  var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+  function decodeAttr (value, shouldDecodeNewlines) {
+    var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+    return value.replace(re, function (match) { return decodingMap[match]; })
+  }
+
+  function parseHTML (html, options) {
+    var stack = [];
+    var expectHTML = options.expectHTML;
+    var isUnaryTag$$1 = options.isUnaryTag || no;
+    var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+    var index = 0;
+    var last, lastTag;
+    while (html) {
+      last = html;
+      // Make sure we're not in a plaintext content element like script/style
+      if (!lastTag || !isPlainTextElement(lastTag)) {
+        var textEnd = html.indexOf('<');
+        if (textEnd === 0) {
+          // Comment:
+          if (comment.test(html)) {
+            var commentEnd = html.indexOf('-->');
+
+            if (commentEnd >= 0) {
+              if (options.shouldKeepComment) {
+                options.comment(html.substring(4, commentEnd));
+              }
+              advance(commentEnd + 3);
+              continue
             }
           }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
 
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
+          // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+          if (conditionalComment.test(html)) {
+            var conditionalEnd = html.indexOf(']>');
 
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {}
+            if (conditionalEnd >= 0) {
+              advance(conditionalEnd + 2);
+              continue
+            }
+          }
 
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-]
+          // Doctype:
+          var doctypeMatch = html.match(doctype);
+          if (doctypeMatch) {
+            advance(doctypeMatch[0].length);
+            continue
+          }
 
-/*  */
+          // End tag:
+          var endTagMatch = html.match(endTag);
+          if (endTagMatch) {
+            var curIndex = index;
+            advance(endTagMatch[0].length);
+            parseEndTag(endTagMatch[1], curIndex, index);
+            continue
+          }
 
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
+          // Start tag:
+          var startTagMatch = parseStartTag();
+          if (startTagMatch) {
+            handleStartTag(startTagMatch);
+            if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
+              advance(1);
+            }
+            continue
+          }
+        }
 
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
+        var text = (void 0), rest = (void 0), next = (void 0);
+        if (textEnd >= 0) {
+          rest = html.slice(textEnd);
+          while (
+            !endTag.test(rest) &&
+            !startTagOpen.test(rest) &&
+            !comment.test(rest) &&
+            !conditionalComment.test(rest)
+          ) {
+            // < in plain text, be forgiving and treat it as text
+            next = rest.indexOf('<', 1);
+            if (next < 0) { break }
+            textEnd += next;
+            rest = html.slice(textEnd);
+          }
+          text = html.substring(0, textEnd);
+          advance(textEnd);
+        }
 
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
+        if (textEnd < 0) {
+          text = html;
+          html = '';
+        }
 
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
+        if (options.chars && text) {
+          options.chars(text);
+        }
       } else {
-        setSelected(el, binding, vnode.context);
+        var endTagLength = 0;
+        var stackedTag = lastTag.toLowerCase();
+        var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+        var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+          endTagLength = endTag.length;
+          if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+            text = text
+              .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+              .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+          }
+          if (shouldIgnoreFirstNewline(stackedTag, text)) {
+            text = text.slice(1);
+          }
+          if (options.chars) {
+            options.chars(text);
+          }
+          return ''
+        });
+        index += html.length - rest$1.length;
+        html = rest$1;
+        parseEndTag(stackedTag, index - endTagLength, index);
       }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
+
+      if (html === last) {
+        options.chars && options.chars(html);
+        if (!stack.length && options.warn) {
+          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
         }
+        break
       }
     }
-  },
 
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
+    // Clean up any remaining tags
+    parseEndTag();
+
+    function advance (n) {
+      index += n;
+      html = html.substring(n);
+    }
+
+    function parseStartTag () {
+      var start = html.match(startTagOpen);
+      if (start) {
+        var match = {
+          tagName: start[1],
+          attrs: [],
+          start: index
+        };
+        advance(start[0].length);
+        var end, attr;
+        while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+          advance(attr[0].length);
+          match.attrs.push(attr);
+        }
+        if (end) {
+          match.unarySlash = end[1];
+          advance(end[0].length);
+          match.end = index;
+          return match
         }
       }
     }
-  }
-};
 
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
+    function handleStartTag (match) {
+      var tagName = match.tagName;
+      var unarySlash = match.unarySlash;
 
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    "development" !== 'production' && warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
+      if (expectHTML) {
+        if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+          parseEndTag(lastTag);
+        }
+        if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+          parseEndTag(tagName);
         }
-        return
       }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
 
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
+      var unary = isUnaryTag$$1(tagName) || !!unarySlash;
 
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
+      var l = match.attrs.length;
+      var attrs = new Array(l);
+      for (var i = 0; i < l; i++) {
+        var args = match.attrs[i];
+        var value = args[3] || args[4] || args[5] || '';
+        var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+          ? options.shouldDecodeNewlinesForHref
+          : options.shouldDecodeNewlines;
+        attrs[i] = {
+          name: args[1],
+          value: decodeAttr(value, shouldDecodeNewlines)
+        };
       }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
 
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-}
-
-var platformDirectives = {
-  model: directive,
-  show: show
-}
-
-/*  */
-
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
+      if (!unary) {
+        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+        lastTag = tagName;
+      }
+
+      if (options.start) {
+        options.start(tagName, attrs, unary, match.start, match.end);
+      }
+    }
 
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data
-}
+    function parseEndTag (tagName, start, end) {
+      var pos, lowerCasedTagName;
+      if (start == null) { start = index; }
+      if (end == null) { end = index; }
 
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
+      // Find the closest opened tag of the same type
+      if (tagName) {
+        lowerCasedTagName = tagName.toLowerCase();
+        for (pos = stack.length - 1; pos >= 0; pos--) {
+          if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+            break
+          }
+        }
+      } else {
+        // If no tag name is provided, clean shop
+        pos = 0;
+      }
+
+      if (pos >= 0) {
+        // Close all the open elements, up the stack
+        for (var i = stack.length - 1; i >= pos; i--) {
+          if (i > pos || !tagName &&
+            options.warn
+          ) {
+            options.warn(
+              ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+            );
+          }
+          if (options.end) {
+            options.end(stack[i].tag, start, end);
+          }
+        }
 
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
+        // Remove the open elements from the stack
+        stack.length = pos;
+        lastTag = pos && stack[pos - 1].tag;
+      } else if (lowerCasedTagName === 'br') {
+        if (options.start) {
+          options.start(tagName, [], true, start, end);
+        }
+      } else if (lowerCasedTagName === 'p') {
+        if (options.start) {
+          options.start(tagName, [], false, start, end);
+        }
+        if (options.end) {
+          options.end(tagName, start, end);
+        }
+      }
     }
   }
-}
 
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
+  /*  */
 
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
+  var onRE = /^@|^v-on:/;
+  var dirRE = /^v-|^@|^:/;
+  var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
+  var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+  var stripParensRE = /^\(|\)$/g;
 
-  render: function render (h) {
-    var this$1 = this;
+  var argRE = /:(.*)$/;
+  var bindRE = /^:|^v-bind:/;
+  var modifierRE = /\.[^.]+/g;
 
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
+  var decodeHTMLCached = cached(he.decode);
 
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
+  // configurable state
+  var warn$2;
+  var delimiters;
+  var transforms;
+  var preTransforms;
+  var postTransforms;
+  var platformIsPreTag;
+  var platformMustUseProp;
+  var platformGetTagNamespace;
 
-    // warn multiple elements
-    if ("development" !== 'production' && children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
 
-    var mode = this.mode;
 
-    // warn invalid mode
-    if ("development" !== 'production' &&
-      mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
+  function createASTElement (
+    tag,
+    attrs,
+    parent
+  ) {
+    return {
+      type: 1,
+      tag: tag,
+      attrsList: attrs,
+      attrsMap: makeAttrsMap(attrs),
+      parent: parent,
+      children: []
     }
+  }
 
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
+  /**
+   * Convert HTML string to AST.
+   */
+  function parse (
+    template,
+    options
+  ) {
+    warn$2 = options.warn || baseWarn;
 
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
+    platformIsPreTag = options.isPreTag || no;
+    platformMustUseProp = options.mustUseProp || no;
+    platformGetTagNamespace = options.getTagNamespace || no;
 
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
+    transforms = pluckModuleFunction(options.modules, 'transformNode');
+    preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+    postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
 
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
+    delimiters = options.delimiters;
 
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
+    var stack = [];
+    var preserveWhitespace = options.preserveWhitespace !== false;
+    var root;
+    var currentParent;
+    var inVPre = false;
+    var inPre = false;
+    var warned = false;
 
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
-      child.data.show = true;
+    function warnOnce (msg) {
+      if (!warned) {
+        warned = true;
+        warn$2(msg);
+      }
     }
 
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+    function closeElement (element) {
+      // check pre state
+      if (element.pre) {
+        inVPre = false;
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = false;
+      }
+      // apply post-transforms
+      for (var i = 0; i < postTransforms.length; i++) {
+        postTransforms[i](element, options);
       }
     }
 
-    return rawChild
-  }
-}
-
-/*  */
-
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
+    parseHTML(template, {
+      warn: warn$2,
+      expectHTML: options.expectHTML,
+      isUnaryTag: options.isUnaryTag,
+      canBeLeftOpenTag: options.canBeLeftOpenTag,
+      shouldDecodeNewlines: options.shouldDecodeNewlines,
+      shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+      shouldKeepComment: options.comments,
+      start: function start (tag, attrs, unary) {
+        // check namespace.
+        // inherit parent ns if there is one
+        var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
 
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
+        // handle IE svg bug
+        /* istanbul ignore if */
+        if (isIE && ns === 'svg') {
+          attrs = guardIESVGBug(attrs);
+        }
 
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
+        var element = createASTElement(tag, attrs, currentParent);
+        if (ns) {
+          element.ns = ns;
+        }
 
-delete props.mode;
+        if (isForbiddenTag(element) && !isServerRendering()) {
+          element.forbidden = true;
+          warn$2(
+            'Templates should only be responsible for mapping the state to the ' +
+            'UI. Avoid placing tags with side-effects in your templates, such as ' +
+            "<" + tag + ">" + ', as they will not be parsed.'
+          );
+        }
 
-var TransitionGroup = {
-  props: props,
+        // apply pre-transforms
+        for (var i = 0; i < preTransforms.length; i++) {
+          element = preTransforms[i](element, options) || element;
+        }
 
-  beforeMount: function beforeMount () {
-    var this$1 = this;
+        if (!inVPre) {
+          processPre(element);
+          if (element.pre) {
+            inVPre = true;
+          }
+        }
+        if (platformIsPreTag(element.tag)) {
+          inPre = true;
+        }
+        if (inVPre) {
+          processRawAttrs(element);
+        } else if (!element.processed) {
+          // structural directives
+          processFor(element);
+          processIf(element);
+          processOnce(element);
+          // element-scope stuff
+          processElement(element, options);
+        }
 
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      update.call(this$1, vnode, hydrating);
-    };
-  },
+        function checkRootConstraints (el) {
+          {
+            if (el.tag === 'slot' || el.tag === 'template') {
+              warnOnce(
+                "Cannot use <" + (el.tag) + "> as component root element because it may " +
+                'contain multiple nodes.'
+              );
+            }
+            if (el.attrsMap.hasOwnProperty('v-for')) {
+              warnOnce(
+                'Cannot use v-for on stateful component root element because ' +
+                'it renders multiple elements.'
+              );
+            }
+          }
+        }
 
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
+        // tree management
+        if (!root) {
+          root = element;
+          checkRootConstraints(root);
+        } else if (!stack.length) {
+          // allow root elements with v-if, v-else-if and v-else
+          if (root.if && (element.elseif || element.else)) {
+            checkRootConstraints(element);
+            addIfCondition(root, {
+              exp: element.elseif,
+              block: element
+            });
+          } else {
+            warnOnce(
+              "Component template should contain exactly one root element. " +
+              "If you are using v-if on multiple elements, " +
+              "use v-else-if to chain them instead."
+            );
+          }
+        }
+        if (currentParent && !element.forbidden) {
+          if (element.elseif || element.else) {
+            processIfConditions(element, currentParent);
+          } else if (element.slotScope) { // scoped slot
+            currentParent.plain = false;
+            var name = element.slotTarget || '"default"'
+            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          } else {
+            currentParent.children.push(element);
+            element.parent = currentParent;
+          }
+        }
+        if (!unary) {
+          currentParent = element;
+          stack.push(element);
         } else {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
+          closeElement(element);
+        }
+      },
+
+      end: function end () {
+        // remove trailing whitespace
+        var element = stack[stack.length - 1];
+        var lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+          element.children.pop();
+        }
+        // pop stack
+        stack.length -= 1;
+        currentParent = stack[stack.length - 1];
+        closeElement(element);
+      },
+
+      chars: function chars (text) {
+        if (!currentParent) {
+          {
+            if (text === template) {
+              warnOnce(
+                'Component template requires a root element, rather than just text.'
+              );
+            } else if ((text = text.trim())) {
+              warnOnce(
+                ("text \"" + text + "\" outside root element will be ignored.")
+              );
+            }
+          }
+          return
+        }
+        // IE textarea placeholder bug
+        /* istanbul ignore if */
+        if (isIE &&
+          currentParent.tag === 'textarea' &&
+          currentParent.attrsMap.placeholder === text
+        ) {
+          return
+        }
+        var children = currentParent.children;
+        text = inPre || text.trim()
+          ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+          // only preserve whitespace if its not right after a starting tag
+          : preserveWhitespace && children.length ? ' ' : '';
+        if (text) {
+          var res;
+          if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+            children.push({
+              type: 2,
+              expression: res.expression,
+              tokens: res.tokens,
+              text: text
+            });
+          } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+            children.push({
+              type: 3,
+              text: text
+            });
+          }
         }
+      },
+      comment: function comment (text) {
+        currentParent.children.push({
+          type: 3,
+          text: text,
+          isComment: true
+        });
       }
+    });
+    return root
+  }
+
+  function processPre (el) {
+    if (getAndRemoveAttr(el, 'v-pre') != null) {
+      el.pre = true;
     }
+  }
 
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
+  function processRawAttrs (el) {
+    var l = el.attrsList.length;
+    if (l) {
+      var attrs = el.attrs = new Array(l);
+      for (var i = 0; i < l; i++) {
+        attrs[i] = {
+          name: el.attrsList[i].name,
+          value: JSON.stringify(el.attrsList[i].value)
+        };
       }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
+    } else if (!el.pre) {
+      // non root node in pre blocks with no attributes
+      el.plain = true;
     }
+  }
 
-    return h(tag, null, children)
-  },
+  function processElement (element, options) {
+    processKey(element);
 
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
+    // determine whether this is a plain element after
+    // removing structural attributes
+    element.plain = !element.key && !element.attrsList.length;
 
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
+    processRef(element);
+    processSlot(element);
+    processComponent(element);
+    for (var i = 0; i < transforms.length; i++) {
+      element = transforms[i](element, options) || element;
+    }
+    processAttrs(element);
+  }
 
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
+  function processKey (el) {
+    var exp = getBindingAttr(el, 'key');
+    if (exp) {
+      {
+        if (el.tag === 'template') {
+          warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+        }
+        if (el.for) {
+          var iterator = el.iterator2 || el.iterator1;
+          var parent = el.parent;
+          if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+            warn$2(
+              "Do not use v-for index as key on <transtion-group> children, " +
+              "this is the same as not using keys."
+            );
           }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+        }
       }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
+      el.key = exp;
     }
   }
-}
 
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
+  function processRef (el) {
+    var ref = getBindingAttr(el, 'ref');
+    if (ref) {
+      el.ref = ref;
+      el.refInFor = checkInFor(el);
+    }
   }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-}
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        "development" !== 'production' &&
-        "development" !== 'test' &&
-        isChrome
-      ) {
-        console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
+
+  function processFor (el) {
+    var exp;
+    if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+      var res = parseFor(exp);
+      if (res) {
+        extend(el, res);
+      } else {
+        warn$2(
+          ("Invalid v-for expression: " + exp)
         );
       }
     }
-    if ("development" !== 'production' &&
-      "development" !== 'test' &&
-      config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
-}
-
-/*  */
-
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
-var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-var buildRegex = cached(function (delimiters) {
-  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-});
+  }
 
 
 
-function parseText (
-  text,
-  delimiters
-) {
-  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return
-  }
-  var tokens = [];
-  var rawTokens = [];
-  var lastIndex = tagRE.lastIndex = 0;
-  var match, index, tokenValue;
-  while ((match = tagRE.exec(text))) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      rawTokens.push(tokenValue = text.slice(lastIndex, index));
-      tokens.push(JSON.stringify(tokenValue));
+  function parseFor (exp) {
+    var inMatch = exp.match(forAliasRE);
+    if (!inMatch) { return }
+    var res = {};
+    res.for = inMatch[2].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
+    var iteratorMatch = alias.match(forIteratorRE);
+    if (iteratorMatch) {
+      res.alias = alias.replace(forIteratorRE, '').trim();
+      res.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        res.iterator2 = iteratorMatch[2].trim();
+      }
+    } else {
+      res.alias = alias;
     }
-    // tag token
-    var exp = parseFilters(match[1].trim());
-    tokens.push(("_s(" + exp + ")"));
-    rawTokens.push({ '@binding': exp });
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    rawTokens.push(tokenValue = text.slice(lastIndex));
-    tokens.push(JSON.stringify(tokenValue));
-  }
-  return {
-    expression: tokens.join('+'),
-    tokens: rawTokens
+    return res
   }
-}
-
-/*  */
 
-function transformNode (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticClass = getAndRemoveAttr(el, 'class');
-  if ("development" !== 'production' && staticClass) {
-    var res = parseText(staticClass, options.delimiters);
-    if (res) {
-      warn(
-        "class=\"" + staticClass + "\": " +
-        'Interpolation inside attributes has been removed. ' +
-        'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
-      );
+  function processIf (el) {
+    var exp = getAndRemoveAttr(el, 'v-if');
+    if (exp) {
+      el.if = exp;
+      addIfCondition(el, {
+        exp: exp,
+        block: el
+      });
+    } else {
+      if (getAndRemoveAttr(el, 'v-else') != null) {
+        el.else = true;
+      }
+      var elseif = getAndRemoveAttr(el, 'v-else-if');
+      if (elseif) {
+        el.elseif = elseif;
+      }
     }
   }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
 
-function genData (el) {
-  var data = '';
-  if (el.staticClass) {
-    data += "staticClass:" + (el.staticClass) + ",";
-  }
-  if (el.classBinding) {
-    data += "class:" + (el.classBinding) + ",";
+  function processIfConditions (el, parent) {
+    var prev = findPrevElement(parent.children);
+    if (prev && prev.if) {
+      addIfCondition(prev, {
+        exp: el.elseif,
+        block: el
+      });
+    } else {
+      warn$2(
+        "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+        "used on element <" + (el.tag) + "> without corresponding v-if."
+      );
+    }
   }
-  return data
-}
-
-var klass$1 = {
-  staticKeys: ['staticClass'],
-  transformNode: transformNode,
-  genData: genData
-}
-
-/*  */
 
-function transformNode$1 (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
-    {
-      var res = parseText(staticStyle, options.delimiters);
-      if (res) {
-        warn(
-          "style=\"" + staticStyle + "\": " +
-          'Interpolation inside attributes has been removed. ' +
-          'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
-        );
+  function findPrevElement (children) {
+    var i = children.length;
+    while (i--) {
+      if (children[i].type === 1) {
+        return children[i]
+      } else {
+        if (children[i].text !== ' ') {
+          warn$2(
+            "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+            "will be ignored."
+          );
+        }
+        children.pop();
       }
     }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
   }
 
-  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
+  function addIfCondition (el, condition) {
+    if (!el.ifConditions) {
+      el.ifConditions = [];
+    }
+    el.ifConditions.push(condition);
   }
-}
 
-function genData$1 (el) {
-  var data = '';
-  if (el.staticStyle) {
-    data += "staticStyle:" + (el.staticStyle) + ",";
-  }
-  if (el.styleBinding) {
-    data += "style:(" + (el.styleBinding) + "),";
+  function processOnce (el) {
+    var once$$1 = getAndRemoveAttr(el, 'v-once');
+    if (once$$1 != null) {
+      el.once = true;
+    }
   }
-  return data
-}
-
-var style$1 = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-}
 
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
+  function processSlot (el) {
+    if (el.tag === 'slot') {
+      el.slotName = getBindingAttr(el, 'name');
+      if (el.key) {
+        warn$2(
+          "`key` does not work on <slot> because slots are abstract outlets " +
+          "and can possibly expand into multiple elements. " +
+          "Use the key on a wrapping element instead."
+        );
+      }
+    } else {
+      var slotScope;
+      if (el.tag === 'template') {
+        slotScope = getAndRemoveAttr(el, 'scope');
+        /* istanbul ignore if */
+        if (slotScope) {
+          warn$2(
+            "the \"scope\" attribute for scoped slots have been deprecated and " +
+            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+            "can also be used on plain elements in addition to <template> to " +
+            "denote scoped slots.",
+            true
+          );
+        }
+        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+        /* istanbul ignore if */
+        if (el.attrsMap['v-for']) {
+          warn$2(
+            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+            "(v-for takes higher priority). Use a wrapper <template> for the " +
+            "scoped slot to make it clearer.",
+            true
+          );
+        }
+        el.slotScope = slotScope;
+      }
+      var slotTarget = getBindingAttr(el, 'slot');
+      if (slotTarget) {
+        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+        // preserve slot as an attribute for native shadow DOM compat
+        // only for non-scoped slots.
+        if (el.tag !== 'template' && !el.slotScope) {
+          addAttr(el, 'slot', slotTarget);
+        }
+      }
+    }
   }
-}
-
-/*  */
-
-var isUnaryTag = makeMap(
-  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-  'link,meta,param,source,track,wbr'
-);
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-var canBeLeftOpenTag = makeMap(
-  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-);
 
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-var isNonPhrasingTag = makeMap(
-  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-  'title,tr,track'
-);
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
+  function processComponent (el) {
+    var binding;
+    if ((binding = getBindingAttr(el, 'is'))) {
+      el.component = binding;
+    }
+    if (getAndRemoveAttr(el, 'inline-template') != null) {
+      el.inlineTemplate = true;
+    }
+  }
 
-// Regular Expressions for parsing tags and attributes
-var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-var startTagOpen = new RegExp(("^<" + qnameCapture));
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
-var comment = /^<!\--/;
-var conditionalComment = /^<!\[/;
-
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n',
-  '&#9;': '\t'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) { return decodingMap[match]; })
-}
-
-function parseHTML (html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
+  function processAttrs (el) {
+    var list = el.attrsList;
+    var i, l, name, rawName, value, modifiers, isProp;
+    for (i = 0, l = list.length; i < l; i++) {
+      name = rawName = list[i].name;
+      value = list[i].value;
+      if (dirRE.test(name)) {
+        // mark element as dynamic
+        el.hasBindings = true;
+        // modifiers
+        modifiers = parseModifiers(name);
+        if (modifiers) {
+          name = name.replace(modifierRE, '');
+        }
+        if (bindRE.test(name)) { // v-bind
+          name = name.replace(bindRE, '');
+          value = parseFilters(value);
+          isProp = false;
+          if (
+            value.trim().length === 0
+          ) {
+            warn$2(
+              ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+            );
+          }
+          if (modifiers) {
+            if (modifiers.prop) {
+              isProp = true;
+              name = camelize(name);
+              if (name === 'innerHtml') { name = 'innerHTML'; }
+            }
+            if (modifiers.camel) {
+              name = camelize(name);
+            }
+            if (modifiers.sync) {
+              addHandler(
+                el,
+                ("update:" + (camelize(name))),
+                genAssignmentCode(value, "$event")
+              );
             }
-            advance(commentEnd + 3);
-            continue
           }
-        }
-
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          var conditionalEnd = html.indexOf(']>');
-
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
-            continue
+          if (isProp || (
+            !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+          )) {
+            addProp(el, name, value);
+          } else {
+            addAttr(el, name, value);
+          }
+        } else if (onRE.test(name)) { // v-on
+          name = name.replace(onRE, '');
+          addHandler(el, name, value, modifiers, false, warn$2);
+        } else { // normal directives
+          name = name.replace(dirRE, '');
+          // parse arg
+          var argMatch = name.match(argRE);
+          var arg = argMatch && argMatch[1];
+          if (arg) {
+            name = name.slice(0, -(arg.length + 1));
+          }
+          addDirective(el, name, rawName, value, arg, modifiers);
+          if (name === 'model') {
+            checkForAliasModel(el, value);
           }
         }
-
-        // Doctype:
-        var doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue
-        }
-
-        // End tag:
-        var endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          var curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue
-        }
-
-        // Start tag:
-        var startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
-            advance(1);
+      } else {
+        // literal attribute
+        {
+          var res = parseText(value, delimiters);
+          if (res) {
+            warn$2(
+              name + "=\"" + value + "\": " +
+              'Interpolation inside attributes has been removed. ' +
+              'Use v-bind or the colon shorthand instead. For example, ' +
+              'instead of <div id="{{ val }}">, use <div :id="val">.'
+            );
           }
-          continue
         }
-      }
-
-      var text = (void 0), rest = (void 0), next = (void 0);
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (
-          !endTag.test(rest) &&
-          !startTagOpen.test(rest) &&
-          !comment.test(rest) &&
-          !conditionalComment.test(rest)
-        ) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) { break }
-          textEnd += next;
-          rest = html.slice(textEnd);
+        addAttr(el, name, JSON.stringify(value));
+        // #6887 firefox doesn't update muted state if set via attribute
+        // even immediately after element creation
+        if (!el.component &&
+            name === 'muted' &&
+            platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+          addProp(el, name, 'true');
         }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
       }
+    }
+  }
 
-      if (textEnd < 0) {
-        text = html;
-        html = '';
+  function checkInFor (el) {
+    var parent = el;
+    while (parent) {
+      if (parent.for !== undefined) {
+        return true
       }
+      parent = parent.parent;
+    }
+    return false
+  }
 
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      var endTagLength = 0;
-      var stackedTag = lastTag.toLowerCase();
-      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text
-            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
-            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return ''
-      });
-      index += html.length - rest$1.length;
-      html = rest$1;
-      parseEndTag(stackedTag, index - endTagLength, index);
+  function parseModifiers (name) {
+    var match = name.match(modifierRE);
+    if (match) {
+      var ret = {};
+      match.forEach(function (m) { ret[m.slice(1)] = true; });
+      return ret
     }
+  }
 
-    if (html === last) {
-      options.chars && options.chars(html);
-      if ("development" !== 'production' && !stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+  function makeAttrsMap (attrs) {
+    var map = {};
+    for (var i = 0, l = attrs.length; i < l; i++) {
+      if (
+        map[attrs[i].name] && !isIE && !isEdge
+      ) {
+        warn$2('duplicate attribute: ' + attrs[i].name);
       }
-      break
+      map[attrs[i].name] = attrs[i].value;
     }
+    return map
   }
 
-  // Clean up any remaining tags
-  parseEndTag();
-
-  function advance (n) {
-    index += n;
-    html = html.substring(n);
+  // for script (e.g. type="x/template") or style, do not decode content
+  function isTextTag (el) {
+    return el.tag === 'script' || el.tag === 'style'
   }
 
-  function parseStartTag () {
-    var start = html.match(startTagOpen);
-    if (start) {
-      var match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match
-      }
-    }
+  function isForbiddenTag (el) {
+    return (
+      el.tag === 'style' ||
+      (el.tag === 'script' && (
+        !el.attrsMap.type ||
+        el.attrsMap.type === 'text/javascript'
+      ))
+    )
   }
 
-  function handleStartTag (match) {
-    var tagName = match.tagName;
-    var unarySlash = match.unarySlash;
+  var ieNSBug = /^xmlns:NS\d+/;
+  var ieNSPrefix = /^NS\d+:/;
 
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
-      }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
+  /* istanbul ignore next */
+  function guardIESVGBug (attrs) {
+    var res = [];
+    for (var i = 0; i < attrs.length; i++) {
+      var attr = attrs[i];
+      if (!ieNSBug.test(attr.name)) {
+        attr.name = attr.name.replace(ieNSPrefix, '');
+        res.push(attr);
       }
     }
+    return res
+  }
 
-    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
-
-    var l = match.attrs.length;
-    var attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
+  function checkForAliasModel (el, value) {
+    var _el = el;
+    while (_el) {
+      if (_el.for && _el.alias === value) {
+        warn$2(
+          "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+          "You are binding v-model directly to a v-for iteration alias. " +
+          "This will not be able to modify the v-for source array because " +
+          "writing to the alias is like modifying a function local variable. " +
+          "Consider using an array of objects and use v-model on an object property instead."
+        );
       }
-      var value = args[3] || args[4] || args[5] || '';
-      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-        ? options.shouldDecodeNewlinesForHref
-        : options.shouldDecodeNewlines;
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, shouldDecodeNewlines)
-      };
-    }
-
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
-
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
+      _el = _el.parent;
     }
   }
 
-  function parseEndTag (tagName, start, end) {
-    var pos, lowerCasedTagName;
-    if (start == null) { start = index; }
-    if (end == null) { end = index; }
-
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
+  /*  */
 
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break
-        }
+  function preTransformNode (el, options) {
+    if (el.tag === 'input') {
+      var map = el.attrsMap;
+      if (!map['v-model']) {
+        return
       }
-    } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
-    }
 
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (var i = stack.length - 1; i >= pos; i--) {
-        if ("development" !== 'production' &&
-          (i > pos || !tagName) &&
-          options.warn
-        ) {
-          options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
-          );
-        }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
+      var typeBinding;
+      if (map[':type'] || map['v-bind:type']) {
+        typeBinding = getBindingAttr(el, 'type');
+      }
+      if (!map.type && !typeBinding && map['v-bind']) {
+        typeBinding = "(" + (map['v-bind']) + ").type";
+      }
+
+      if (typeBinding) {
+        var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+        var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+        var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+        var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+        // 1. checkbox
+        var branch0 = cloneASTElement(el);
+        // process for on the main node
+        processFor(branch0);
+        addRawAttr(branch0, 'type', 'checkbox');
+        processElement(branch0, options);
+        branch0.processed = true; // prevent it from double-processed
+        branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
+        addIfCondition(branch0, {
+          exp: branch0.if,
+          block: branch0
+        });
+        // 2. add radio else-if condition
+        var branch1 = cloneASTElement(el);
+        getAndRemoveAttr(branch1, 'v-for', true);
+        addRawAttr(branch1, 'type', 'radio');
+        processElement(branch1, options);
+        addIfCondition(branch0, {
+          exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
+          block: branch1
+        });
+        // 3. other
+        var branch2 = cloneASTElement(el);
+        getAndRemoveAttr(branch2, 'v-for', true);
+        addRawAttr(branch2, ':type', typeBinding);
+        processElement(branch2, options);
+        addIfCondition(branch0, {
+          exp: ifCondition,
+          block: branch2
+        });
+
+        if (hasElse) {
+          branch0.else = true;
+        } else if (elseIfCondition) {
+          branch0.elseif = elseIfCondition;
         }
-      }
 
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
-      }
-      if (options.end) {
-        options.end(tagName, start, end);
+        return branch0
       }
     }
   }
-}
-
-/*  */
-
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
-var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
-var stripParensRE = /^\(|\)$/g;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$2;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
 
-
-function createASTElement (
-  tag,
-  attrs,
-  parent
-) {
-  return {
-    type: 1,
-    tag: tag,
-    attrsList: attrs,
-    attrsMap: makeAttrsMap(attrs),
-    parent: parent,
-    children: []
+  function cloneASTElement (el) {
+    return createASTElement(el.tag, el.attrsList.slice(), el.parent)
   }
-}
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$2 = options.warn || baseWarn;
-
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
 
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+  var model$1 = {
+    preTransformNode: preTransformNode
+  };
 
-  delimiters = options.delimiters;
+  var modules$1 = [
+    klass$1,
+    style$1,
+    model$1
+  ];
 
-  var stack = [];
-  var preserveWhitespace = options.preserveWhitespace !== false;
-  var root;
-  var currentParent;
-  var inVPre = false;
-  var inPre = false;
-  var warned = false;
+  /*  */
 
-  function warnOnce (msg) {
-    if (!warned) {
-      warned = true;
-      warn$2(msg);
+  function text (el, dir) {
+    if (dir.value) {
+      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
     }
   }
 
-  function closeElement (element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-    // apply post-transforms
-    for (var i = 0; i < postTransforms.length; i++) {
-      postTransforms[i](element, options);
+  /*  */
+
+  function html (el, dir) {
+    if (dir.value) {
+      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
     }
   }
 
-  parseHTML(template, {
-    warn: warn$2,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-    shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+  var directives$1 = {
+    model: model,
+    text: text,
+    html: html
+  };
 
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
+  /*  */
+
+  var baseOptions = {
+    expectHTML: true,
+    modules: modules$1,
+    directives: directives$1,
+    isPreTag: isPreTag,
+    isUnaryTag: isUnaryTag,
+    mustUseProp: mustUseProp,
+    canBeLeftOpenTag: canBeLeftOpenTag,
+    isReservedTag: isReservedTag,
+    getTagNamespace: getTagNamespace,
+    staticKeys: genStaticKeys(modules$1)
+  };
 
-      var element = createASTElement(tag, attrs, currentParent);
-      if (ns) {
-        element.ns = ns;
-      }
+  /*  */
 
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        "development" !== 'production' && warn$2(
-          'Templates should only be responsible for mapping the state to the ' +
-          'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
-        );
-      }
+  var isStaticKey;
+  var isPlatformReservedTag;
 
-      // apply pre-transforms
-      for (var i = 0; i < preTransforms.length; i++) {
-        element = preTransforms[i](element, options) || element;
-      }
+  var genStaticKeysCached = cached(genStaticKeys$1);
 
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
+  /**
+   * Goal of the optimizer: walk the generated template AST tree
+   * and detect sub-trees that are purely static, i.e. parts of
+   * the DOM that never needs to change.
+   *
+   * Once we detect these sub-trees, we can:
+   *
+   * 1. Hoist them into constants, so that we no longer need to
+   *    create fresh nodes for them on each re-render;
+   * 2. Completely skip them in the patching process.
+   */
+  function optimize (root, options) {
+    if (!root) { return }
+    isStaticKey = genStaticKeysCached(options.staticKeys || '');
+    isPlatformReservedTag = options.isReservedTag || no;
+    // first pass: mark all non-static nodes.
+    markStatic$1(root);
+    // second pass: mark static roots.
+    markStaticRoots(root, false);
+  }
+
+  function genStaticKeys$1 (keys) {
+    return makeMap(
+      'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+      (keys ? ',' + keys : '')
+    )
+  }
+
+  function markStatic$1 (node) {
+    node.static = isStatic(node);
+    if (node.type === 1) {
+      // do not make component slot content static. this avoids
+      // 1. components not able to mutate slot nodes
+      // 2. static slot content fails for hot-reloading
+      if (
+        !isPlatformReservedTag(node.tag) &&
+        node.tag !== 'slot' &&
+        node.attrsMap['inline-template'] == null
+      ) {
+        return
       }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else if (!element.processed) {
-        // structural directives
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        var child = node.children[i];
+        markStatic$1(child);
+        if (!child.static) {
+          node.static = false;
+        }
       }
-
-      function checkRootConstraints (el) {
-        {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
+      if (node.ifConditions) {
+        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+          var block = node.ifConditions[i$1].block;
+          markStatic$1(block);
+          if (!block.static) {
+            node.static = false;
           }
         }
       }
+    }
+  }
 
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
+  function markStaticRoots (node, isInFor) {
+    if (node.type === 1) {
+      if (node.static || node.once) {
+        node.staticInFor = isInFor;
       }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
+      // For a node to qualify as a static root, it should have children that
+      // are not just static text. Otherwise the cost of hoisting out will
+      // outweigh the benefits and it's better off to just always render it fresh.
+      if (node.static && node.children.length && !(
+        node.children.length === 1 &&
+        node.children[0].type === 3
+      )) {
+        node.staticRoot = true;
+        return
       } else {
-        closeElement(element);
+        node.staticRoot = false;
       }
-    },
-
-    end: function end () {
-      // remove trailing whitespace
-      var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      closeElement(element);
-    },
-
-    chars: function chars (text) {
-      if (!currentParent) {
-        {
-          if (text === template) {
-            warnOnce(
-              'Component template requires a root element, rather than just text.'
-            );
-          } else if ((text = text.trim())) {
-            warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
-            );
-          }
+      if (node.children) {
+        for (var i = 0, l = node.children.length; i < l; i++) {
+          markStaticRoots(node.children[i], isInFor || !!node.for);
         }
-        return
-      }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE &&
-        currentParent.tag === 'textarea' &&
-        currentParent.attrsMap.placeholder === text
-      ) {
-        return
       }
-      var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        var res;
-        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression: res.expression,
-            tokens: res.tokens,
-            text: text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text: text
-          });
+      if (node.ifConditions) {
+        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+          markStaticRoots(node.ifConditions[i$1].block, isInFor);
         }
       }
-    },
-    comment: function comment (text) {
-      currentParent.children.push({
-        type: 3,
-        text: text,
-        isComment: true
-      });
     }
-  });
-  return root
-}
-
-function processPre (el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
-    }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
-  }
-}
-
-function processElement (element, options) {
-  processKey(element);
-
-  // determine whether this is a plain element after
-  // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
-
-  processRef(element);
-  processSlot(element);
-  processComponent(element);
-  for (var i = 0; i < transforms.length; i++) {
-    element = transforms[i](element, options) || element;
   }
-  processAttrs(element);
-}
 
-function processKey (el) {
-  var exp = getBindingAttr(el, 'key');
-  if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+  function isStatic (node) {
+    if (node.type === 2) { // expression
+      return false
     }
-    el.key = exp;
-  }
-}
-
-function processRef (el) {
-  var ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
+    if (node.type === 3) { // text
+      return true
+    }
+    return !!(node.pre || (
+      !node.hasBindings && // no dynamic bindings
+      !node.if && !node.for && // not v-if or v-for or v-else
+      !isBuiltInTag(node.tag) && // not a built-in
+      isPlatformReservedTag(node.tag) && // not a component
+      !isDirectChildOfTemplateFor(node) &&
+      Object.keys(node).every(isStaticKey)
+    ))
   }
-}
 
-function processFor (el) {
-  var exp;
-  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var res = parseFor(exp);
-    if (res) {
-      extend(el, res);
-    } else {
-      warn$2(
-        ("Invalid v-for expression: " + exp)
-      );
+  function isDirectChildOfTemplateFor (node) {
+    while (node.parent) {
+      node = node.parent;
+      if (node.tag !== 'template') {
+        return false
+      }
+      if (node.for) {
+        return true
+      }
     }
+    return false
   }
-}
-
 
+  /*  */
 
-function parseFor (exp) {
-  var inMatch = exp.match(forAliasRE);
-  if (!inMatch) { return }
-  var res = {};
-  res.for = inMatch[2].trim();
-  var alias = inMatch[1].trim().replace(stripParensRE, '');
-  var iteratorMatch = alias.match(forIteratorRE);
-  if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
-    res.iterator1 = iteratorMatch[1].trim();
-    if (iteratorMatch[2]) {
-      res.iterator2 = iteratorMatch[2].trim();
-    }
-  } else {
-    res.alias = alias;
-  }
-  return res
-}
-
-function processIf (el) {
-  var exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
-    }
-    var elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
-    }
-  }
-}
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
-function processIfConditions (el, parent) {
-  var prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else {
-    warn$2(
-      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
-    );
-  }
-}
+  // KeyboardEvent.keyCode aliases
+  var keyCodes = {
+    esc: 27,
+    tab: 9,
+    enter: 13,
+    space: 32,
+    up: 38,
+    left: 37,
+    right: 39,
+    down: 40,
+    'delete': [8, 46]
+  };
 
-function findPrevElement (children) {
-  var i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i]
-    } else {
-      if ("development" !== 'production' && children[i].text !== ' ') {
-        warn$2(
-          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
-        );
-      }
-      children.pop();
-    }
-  }
-}
+  // KeyboardEvent.key aliases
+  var keyNames = {
+    // #7880: IE11 and Edge use `Esc` for Escape key name.
+    esc: ['Esc', 'Escape'],
+    tab: 'Tab',
+    enter: 'Enter',
+    space: ' ',
+    // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+    up: ['Up', 'ArrowUp'],
+    left: ['Left', 'ArrowLeft'],
+    right: ['Right', 'ArrowRight'],
+    down: ['Down', 'ArrowDown'],
+    'delete': ['Backspace', 'Delete']
+  };
 
-function addIfCondition (el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
-  }
-  el.ifConditions.push(condition);
-}
+  // #4868: modifiers that prevent the execution of the listener
+  // need to explicitly return null so that we can determine whether to remove
+  // the listener for .once
+  var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+  var modifierCode = {
+    stop: '$event.stopPropagation();',
+    prevent: '$event.preventDefault();',
+    self: genGuard("$event.target !== $event.currentTarget"),
+    ctrl: genGuard("!$event.ctrlKey"),
+    shift: genGuard("!$event.shiftKey"),
+    alt: genGuard("!$event.altKey"),
+    meta: genGuard("!$event.metaKey"),
+    left: genGuard("'button' in $event && $event.button !== 0"),
+    middle: genGuard("'button' in $event && $event.button !== 1"),
+    right: genGuard("'button' in $event && $event.button !== 2")
+  };
 
-function processOnce (el) {
-  var once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
+  function genHandlers (
+    events,
+    isNative
+  ) {
+    var res = isNative ? 'nativeOn:{' : 'on:{';
+    for (var name in events) {
+      res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+    }
+    return res.slice(0, -1) + '}'
   }
-}
 
-function processSlot (el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if ("development" !== 'production' && el.key) {
-      warn$2(
-        "`key` does not work on <slot> because slots are abstract outlets " +
-        "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
-      );
-    }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if ("development" !== 'production' && slotScope) {
-        warn$2(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if ("development" !== 'production' && el.attrsMap['v-for']) {
-        warn$2(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
-      }
-      el.slotScope = slotScope;
+  function genHandler (
+    name,
+    handler
+  ) {
+    if (!handler) {
+      return 'function(){}'
     }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
+
+    if (Array.isArray(handler)) {
+      return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
     }
-  }
-}
 
-function processComponent (el) {
-  var binding;
-  if ((binding = getBindingAttr(el, 'is'))) {
-    el.component = binding;
-  }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
-  }
-}
+    var isMethodPath = simplePathRE.test(handler.value);
+    var isFunctionExpression = fnExpRE.test(handler.value);
 
-function processAttrs (el) {
-  var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
+    if (!handler.modifiers) {
+      if (isMethodPath || isFunctionExpression) {
+        return handler.value
       }
-      if (bindRE.test(name)) { // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') { name = 'innerHTML'; }
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
-            );
+      return ("function($event){" + (handler.value) + "}") // inline statement
+    } else {
+      var code = '';
+      var genModifierCode = '';
+      var keys = [];
+      for (var key in handler.modifiers) {
+        if (modifierCode[key]) {
+          genModifierCode += modifierCode[key];
+          // left/right
+          if (keyCodes[key]) {
+            keys.push(key);
           }
-        }
-        if (isProp || (
-          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-        )) {
-          addProp(el, name, value);
+        } else if (key === 'exact') {
+          var modifiers = (handler.modifiers);
+          genModifierCode += genGuard(
+            ['ctrl', 'shift', 'alt', 'meta']
+              .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+              .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+              .join('||')
+          );
         } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) { // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
-      } else { // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        var argMatch = name.match(argRE);
-        var arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
-        }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if ("development" !== 'production' && name === 'model') {
-          checkForAliasModel(el, value);
+          keys.push(key);
         }
       }
-    } else {
-      // literal attribute
-      {
-        var res = parseText(value, delimiters);
-        if (res) {
-          warn$2(
-            name + "=\"" + value + "\": " +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
-          );
-        }
+      if (keys.length) {
+        code += genKeyFilter(keys);
       }
-      addAttr(el, name, JSON.stringify(value));
-      // #6887 firefox doesn't update muted state if set via attribute
-      // even immediately after element creation
-      if (!el.component &&
-          name === 'muted' &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
+      // Make sure modifiers like prevent and stop get executed after key filtering
+      if (genModifierCode) {
+        code += genModifierCode;
       }
+      var handlerCode = isMethodPath
+        ? ("return " + (handler.value) + "($event)")
+        : isFunctionExpression
+          ? ("return (" + (handler.value) + ")($event)")
+          : handler.value;
+      return ("function($event){" + code + handlerCode + "}")
     }
   }
-}
 
-function checkInFor (el) {
-  var parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true
-    }
-    parent = parent.parent;
+  function genKeyFilter (keys) {
+    return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
   }
-  return false
-}
 
-function parseModifiers (name) {
-  var match = name.match(modifierRE);
-  if (match) {
-    var ret = {};
-    match.forEach(function (m) { ret[m.slice(1)] = true; });
-    return ret
+  function genFilterCode (key) {
+    var keyVal = parseInt(key, 10);
+    if (keyVal) {
+      return ("$event.keyCode!==" + keyVal)
+    }
+    var keyCode = keyCodes[key];
+    var keyName = keyNames[key];
+    return (
+      "_k($event.keyCode," +
+      (JSON.stringify(key)) + "," +
+      (JSON.stringify(keyCode)) + "," +
+      "$event.key," +
+      "" + (JSON.stringify(keyName)) +
+      ")"
+    )
   }
-}
 
-function makeAttrsMap (attrs) {
-  var map = {};
-  for (var i = 0, l = attrs.length; i < l; i++) {
-    if (
-      "development" !== 'production' &&
-      map[attrs[i].name] && !isIE && !isEdge
-    ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
+  /*  */
+
+  function on (el, dir) {
+    if (dir.modifiers) {
+      warn("v-on without argument does not support modifiers.");
     }
-    map[attrs[i].name] = attrs[i].value;
+    el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
   }
-  return map
-}
 
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
+  /*  */
 
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
-}
+  function bind$1 (el, dir) {
+    el.wrapData = function (code) {
+      return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+    };
+  }
 
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
+  /*  */
 
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
-  }
-  return res
-}
+  var baseDirectives = {
+    on: on,
+    bind: bind$1,
+    cloak: noop
+  };
 
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
-    }
-    _el = _el.parent;
-  }
-}
+  /*  */
 
-/*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
 
-function preTransformNode (el, options) {
-  if (el.tag === 'input') {
-    var map = el.attrsMap;
-    if (!map['v-model']) {
-      return
-    }
 
-    var typeBinding;
-    if (map[':type'] || map['v-bind:type']) {
-      typeBinding = getBindingAttr(el, 'type');
-    }
-    if (!map.type && !typeBinding && map['v-bind']) {
-      typeBinding = "(" + (map['v-bind']) + ").type";
-    }
-
-    if (typeBinding) {
-      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
-      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
-      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-      // 1. checkbox
-      var branch0 = cloneASTElement(el);
-      // process for on the main node
-      processFor(branch0);
-      addRawAttr(branch0, 'type', 'checkbox');
-      processElement(branch0, options);
-      branch0.processed = true; // prevent it from double-processed
-      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
-      addIfCondition(branch0, {
-        exp: branch0.if,
-        block: branch0
-      });
-      // 2. add radio else-if condition
-      var branch1 = cloneASTElement(el);
-      getAndRemoveAttr(branch1, 'v-for', true);
-      addRawAttr(branch1, 'type', 'radio');
-      processElement(branch1, options);
-      addIfCondition(branch0, {
-        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
-        block: branch1
-      });
-      // 3. other
-      var branch2 = cloneASTElement(el);
-      getAndRemoveAttr(branch2, 'v-for', true);
-      addRawAttr(branch2, ':type', typeBinding);
-      processElement(branch2, options);
-      addIfCondition(branch0, {
-        exp: ifCondition,
-        block: branch2
-      });
 
-      if (hasElse) {
-        branch0.else = true;
-      } else if (elseIfCondition) {
-        branch0.elseif = elseIfCondition;
-      }
+  var CodegenState = function CodegenState (options) {
+    this.options = options;
+    this.warn = options.warn || baseWarn;
+    this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+    this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+    this.directives = extend(extend({}, baseDirectives), options.directives);
+    var isReservedTag = options.isReservedTag || no;
+    this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+    this.onceId = 0;
+    this.staticRenderFns = [];
+    this.pre = false;
+  };
+
 
-      return branch0
+
+  function generate (
+    ast,
+    options
+  ) {
+    var state = new CodegenState(options);
+    var code = ast ? genElement(ast, state) : '_c("div")';
+    return {
+      render: ("with(this){return " + code + "}"),
+      staticRenderFns: state.staticRenderFns
     }
   }
-}
 
-function cloneASTElement (el) {
-  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-}
+  function genElement (el, state) {
+    if (el.parent) {
+      el.pre = el.pre || el.parent.pre;
+    }
+
+    if (el.staticRoot && !el.staticProcessed) {
+      return genStatic(el, state)
+    } else if (el.once && !el.onceProcessed) {
+      return genOnce(el, state)
+    } else if (el.for && !el.forProcessed) {
+      return genFor(el, state)
+    } else if (el.if && !el.ifProcessed) {
+      return genIf(el, state)
+    } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
+      return genChildren(el, state) || 'void 0'
+    } else if (el.tag === 'slot') {
+      return genSlot(el, state)
+    } else {
+      // component or element
+      var code;
+      if (el.component) {
+        code = genComponent(el.component, el, state);
+      } else {
+        var data;
+        if (!el.plain || (el.pre && state.maybeComponent(el))) {
+          data = genData$2(el, state);
+        }
 
-var model$2 = {
-  preTransformNode: preTransformNode
-}
+        var children = el.inlineTemplate ? null : genChildren(el, state, true);
+        code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+      }
+      // module transforms
+      for (var i = 0; i < state.transforms.length; i++) {
+        code = state.transforms[i](el, code);
+      }
+      return code
+    }
+  }
 
-var modules$1 = [
-  klass$1,
-  style$1,
-  model$2
-]
+  // hoist static sub-trees out
+  function genStatic (el, state) {
+    el.staticProcessed = true;
+    // Some elements (templates) need to behave differently inside of a v-pre
+    // node.  All pre nodes are static roots, so we can use this as a location to
+    // wrap a state change and reset it upon exiting the pre node.
+    var originalPreState = state.pre;
+    if (el.pre) {
+      state.pre = el.pre;
+    }
+    state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+    state.pre = originalPreState;
+    return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  }
 
-/*  */
+  // v-once
+  function genOnce (el, state) {
+    el.onceProcessed = true;
+    if (el.if && !el.ifProcessed) {
+      return genIf(el, state)
+    } else if (el.staticInFor) {
+      var key = '';
+      var parent = el.parent;
+      while (parent) {
+        if (parent.for) {
+          key = parent.key;
+          break
+        }
+        parent = parent.parent;
+      }
+      if (!key) {
+        state.warn(
+          "v-once can only be used inside v-for that is keyed. "
+        );
+        return genElement(el, state)
+      }
+      return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+    } else {
+      return genStatic(el, state)
+    }
+  }
 
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  function genIf (
+    el,
+    state,
+    altGen,
+    altEmpty
+  ) {
+    el.ifProcessed = true; // avoid recursion
+    return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
   }
-}
 
-/*  */
+  function genIfConditions (
+    conditions,
+    state,
+    altGen,
+    altEmpty
+  ) {
+    if (!conditions.length) {
+      return altEmpty || '_e()'
+    }
+
+    var condition = conditions.shift();
+    if (condition.exp) {
+      return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+    } else {
+      return ("" + (genTernaryExp(condition.block)))
+    }
 
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+    // v-if with v-once should generate code like (a)?_m(0):_m(1)
+    function genTernaryExp (el) {
+      return altGen
+        ? altGen(el, state)
+        : el.once
+          ? genOnce(el, state)
+          : genElement(el, state)
+    }
   }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
-}
 
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
+  function genFor (
+    el,
+    state,
+    altGen,
+    altHelper
+  ) {
+    var exp = el.for;
+    var alias = el.alias;
+    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+    if (state.maybeComponent(el) &&
+      el.tag !== 'slot' &&
+      el.tag !== 'template' &&
+      !el.key
+    ) {
+      state.warn(
+        "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+        "v-for should have explicit keys. " +
+        "See https://vuejs.org/guide/list.html#key for more info.",
+        true /* tip */
+      );
+    }
 
-/*  */
+    el.forProcessed = true; // avoid recursion
+    return (altHelper || '_l') + "((" + exp + ")," +
+      "function(" + alias + iterator1 + iterator2 + "){" +
+        "return " + ((altGen || genElement)(el, state)) +
+      '})'
+  }
 
-var isStaticKey;
-var isPlatformReservedTag;
+  function genData$2 (el, state) {
+    var data = '{';
 
-var genStaticKeysCached = cached(genStaticKeys$1);
+    // directives first.
+    // directives may mutate the el's other properties before they are generated.
+    var dirs = genDirectives(el, state);
+    if (dirs) { data += dirs + ','; }
 
-/**
- * Goal of the optimizer: walk the generated template AST tree
- * and detect sub-trees that are purely static, i.e. parts of
- * the DOM that never needs to change.
- *
- * Once we detect these sub-trees, we can:
- *
- * 1. Hoist them into constants, so that we no longer need to
- *    create fresh nodes for them on each re-render;
- * 2. Completely skip them in the patching process.
- */
-function optimize (root, options) {
-  if (!root) { return }
-  isStaticKey = genStaticKeysCached(options.staticKeys || '');
-  isPlatformReservedTag = options.isReservedTag || no;
-  // first pass: mark all non-static nodes.
-  markStatic$1(root);
-  // second pass: mark static roots.
-  markStaticRoots(root, false);
-}
-
-function genStaticKeys$1 (keys) {
-  return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
-    (keys ? ',' + keys : '')
-  )
-}
-
-function markStatic$1 (node) {
-  node.static = isStatic(node);
-  if (node.type === 1) {
-    // do not make component slot content static. this avoids
-    // 1. components not able to mutate slot nodes
-    // 2. static slot content fails for hot-reloading
-    if (
-      !isPlatformReservedTag(node.tag) &&
-      node.tag !== 'slot' &&
-      node.attrsMap['inline-template'] == null
-    ) {
-      return
+    // key
+    if (el.key) {
+      data += "key:" + (el.key) + ",";
     }
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      markStatic$1(child);
-      if (!child.static) {
-        node.static = false;
-      }
+    // ref
+    if (el.ref) {
+      data += "ref:" + (el.ref) + ",";
     }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        markStatic$1(block);
-        if (!block.static) {
-          node.static = false;
-        }
-      }
+    if (el.refInFor) {
+      data += "refInFor:true,";
     }
-  }
-}
-
-function markStaticRoots (node, isInFor) {
-  if (node.type === 1) {
-    if (node.static || node.once) {
-      node.staticInFor = isInFor;
+    // pre
+    if (el.pre) {
+      data += "pre:true,";
     }
-    // For a node to qualify as a static root, it should have children that
-    // are not just static text. Otherwise the cost of hoisting out will
-    // outweigh the benefits and it's better off to just always render it fresh.
-    if (node.static && node.children.length && !(
-      node.children.length === 1 &&
-      node.children[0].type === 3
-    )) {
-      node.staticRoot = true;
-      return
-    } else {
-      node.staticRoot = false;
+    // record original tag name for components using "is" attribute
+    if (el.component) {
+      data += "tag:\"" + (el.tag) + "\",";
     }
-    if (node.children) {
-      for (var i = 0, l = node.children.length; i < l; i++) {
-        markStaticRoots(node.children[i], isInFor || !!node.for);
-      }
+    // module data generation functions
+    for (var i = 0; i < state.dataGenFns.length; i++) {
+      data += state.dataGenFns[i](el);
+    }
+    // attributes
+    if (el.attrs) {
+      data += "attrs:{" + (genProps(el.attrs)) + "},";
+    }
+    // DOM props
+    if (el.props) {
+      data += "domProps:{" + (genProps(el.props)) + "},";
+    }
+    // event handlers
+    if (el.events) {
+      data += (genHandlers(el.events, false)) + ",";
+    }
+    if (el.nativeEvents) {
+      data += (genHandlers(el.nativeEvents, true)) + ",";
+    }
+    // slot target
+    // only for non-scoped slots
+    if (el.slotTarget && !el.slotScope) {
+      data += "slot:" + (el.slotTarget) + ",";
+    }
+    // scoped slots
+    if (el.scopedSlots) {
+      data += (genScopedSlots(el.scopedSlots, state)) + ",";
     }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        markStaticRoots(node.ifConditions[i$1].block, isInFor);
+    // component v-model
+    if (el.model) {
+      data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+    }
+    // inline-template
+    if (el.inlineTemplate) {
+      var inlineTemplate = genInlineTemplate(el, state);
+      if (inlineTemplate) {
+        data += inlineTemplate + ",";
       }
     }
+    data = data.replace(/,$/, '') + '}';
+    // v-bind data wrap
+    if (el.wrapData) {
+      data = el.wrapData(data);
+    }
+    // v-on data wrap
+    if (el.wrapListeners) {
+      data = el.wrapListeners(data);
+    }
+    return data
   }
-}
 
-function isStatic (node) {
-  if (node.type === 2) { // expression
-    return false
-  }
-  if (node.type === 3) { // text
-    return true
-  }
-  return !!(node.pre || (
-    !node.hasBindings && // no dynamic bindings
-    !node.if && !node.for && // not v-if or v-for or v-else
-    !isBuiltInTag(node.tag) && // not a built-in
-    isPlatformReservedTag(node.tag) && // not a component
-    !isDirectChildOfTemplateFor(node) &&
-    Object.keys(node).every(isStaticKey)
-  ))
-}
-
-function isDirectChildOfTemplateFor (node) {
-  while (node.parent) {
-    node = node.parent;
-    if (node.tag !== 'template') {
-      return false
+  function genDirectives (el, state) {
+    var dirs = el.directives;
+    if (!dirs) { return }
+    var res = 'directives:[';
+    var hasRuntime = false;
+    var i, l, dir, needRuntime;
+    for (i = 0, l = dirs.length; i < l; i++) {
+      dir = dirs[i];
+      needRuntime = true;
+      var gen = state.directives[dir.name];
+      if (gen) {
+        // compile-time directive that manipulates AST.
+        // returns true if it also needs a runtime counterpart.
+        needRuntime = !!gen(el, dir, state.warn);
+      }
+      if (needRuntime) {
+        hasRuntime = true;
+        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+      }
     }
-    if (node.for) {
-      return true
+    if (hasRuntime) {
+      return res.slice(0, -1) + ']'
     }
   }
-  return false
-}
-
-/*  */
-
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
-
-// KeyboardEvent.keyCode aliases
-var keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// KeyboardEvent.key aliases
-var keyNames = {
-  // #7880: IE11 and Edge use `Esc` for Escape key name.
-  esc: ['Esc', 'Escape'],
-  tab: 'Tab',
-  enter: 'Enter',
-  space: ' ',
-  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
-  up: ['Up', 'ArrowUp'],
-  left: ['Left', 'ArrowLeft'],
-  right: ['Right', 'ArrowRight'],
-  down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
-
-var modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard("$event.target !== $event.currentTarget"),
-  ctrl: genGuard("!$event.ctrlKey"),
-  shift: genGuard("!$event.shiftKey"),
-  alt: genGuard("!$event.altKey"),
-  meta: genGuard("!$event.metaKey"),
-  left: genGuard("'button' in $event && $event.button !== 0"),
-  middle: genGuard("'button' in $event && $event.button !== 1"),
-  right: genGuard("'button' in $event && $event.button !== 2")
-};
-
-function genHandlers (
-  events,
-  isNative,
-  warn
-) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
-  for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
-  }
-  return res.slice(0, -1) + '}'
-}
-
-function genHandler (
-  name,
-  handler
-) {
-  if (!handler) {
-    return 'function(){}'
-  }
-
-  if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
-  }
-
-  var isMethodPath = simplePathRE.test(handler.value);
-  var isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    if (isMethodPath || isFunctionExpression) {
-      return handler.value
+
+  function genInlineTemplate (el, state) {
+    var ast = el.children[0];
+    if (el.children.length !== 1 || ast.type !== 1) {
+      state.warn('Inline-template components must have exactly one child element.');
     }
-    /* istanbul ignore if */
-    return ("function($event){" + (handler.value) + "}") // inline statement
-  } else {
-    var code = '';
-    var genModifierCode = '';
-    var keys = [];
-    for (var key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else if (key === 'exact') {
-        var modifiers = (handler.modifiers);
-        genModifierCode += genGuard(
-          ['ctrl', 'shift', 'alt', 'meta']
-            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
-            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
-            .join('||')
-        );
-      } else {
-        keys.push(key);
-      }
+    if (ast.type === 1) {
+      var inlineRenderFns = generate(ast, state.options);
+      return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
     }
-    if (keys.length) {
-      code += genKeyFilter(keys);
+  }
+
+  function genScopedSlots (
+    slots,
+    state
+  ) {
+    return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+        return genScopedSlot(key, slots[key], state)
+      }).join(',')) + "])")
+  }
+
+  function genScopedSlot (
+    key,
+    el,
+    state
+  ) {
+    if (el.for && !el.forProcessed) {
+      return genForScopedSlot(key, el, state)
     }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
+    var fn = "function(" + (String(el.slotScope)) + "){" +
+      "return " + (el.tag === 'template'
+        ? el.if
+          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+          : genChildren(el, state) || 'undefined'
+        : genElement(el, state)) + "}";
+    return ("{key:" + key + ",fn:" + fn + "}")
+  }
+
+  function genForScopedSlot (
+    key,
+    el,
+    state
+  ) {
+    var exp = el.for;
+    var alias = el.alias;
+    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+    el.forProcessed = true; // avoid recursion
+    return "_l((" + exp + ")," +
+      "function(" + alias + iterator1 + iterator2 + "){" +
+        "return " + (genScopedSlot(key, el, state)) +
+      '})'
+  }
+
+  function genChildren (
+    el,
+    state,
+    checkSkip,
+    altGenElement,
+    altGenNode
+  ) {
+    var children = el.children;
+    if (children.length) {
+      var el$1 = children[0];
+      // optimize single v-for
+      if (children.length === 1 &&
+        el$1.for &&
+        el$1.tag !== 'template' &&
+        el$1.tag !== 'slot'
+      ) {
+        // because el may be a functional component and return an Array instead of a single root.
+        // In this case, just a simple normalization is needed
+        var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+        return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
+      }
+      var normalizationType$1 = checkSkip
+        ? getNormalizationType(children, state.maybeComponent)
+        : 0;
+      var gen = altGenNode || genNode;
+      return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
     }
-    var handlerCode = isMethodPath
-      ? ("return " + (handler.value) + "($event)")
-      : isFunctionExpression
-        ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
-    /* istanbul ignore if */
-    return ("function($event){" + code + handlerCode + "}")
   }
-}
 
-function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
-}
+  // determine the normalization needed for the children array.
+  // 0: no normalization needed
+  // 1: simple normalization needed (possible 1-level deep nested array)
+  // 2: full normalization needed
+  function getNormalizationType (
+    children,
+    maybeComponent
+  ) {
+    var res = 0;
+    for (var i = 0; i < children.length; i++) {
+      var el = children[i];
+      if (el.type !== 1) {
+        continue
+      }
+      if (needsNormalization(el) ||
+          (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+        res = 2;
+        break
+      }
+      if (maybeComponent(el) ||
+          (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+        res = 1;
+      }
+    }
+    return res
+  }
 
-function genFilterCode (key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return ("$event.keyCode!==" + keyVal)
+  function needsNormalization (el) {
+    return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
   }
-  var keyCode = keyCodes[key];
-  var keyName = keyNames[key];
-  return (
-    "_k($event.keyCode," +
-    (JSON.stringify(key)) + "," +
-    (JSON.stringify(keyCode)) + "," +
-    "$event.key," +
-    "" + (JSON.stringify(keyName)) +
-    ")"
-  )
-}
 
-/*  */
+  function genNode (node, state) {
+    if (node.type === 1) {
+      return genElement(node, state)
+    } else if (node.type === 3 && node.isComment) {
+      return genComment(node)
+    } else {
+      return genText(node)
+    }
+  }
 
-function on (el, dir) {
-  if ("development" !== 'production' && dir.modifiers) {
-    warn("v-on without argument does not support modifiers.");
+  function genText (text) {
+    return ("_v(" + (text.type === 2
+      ? text.expression // no need for () because already wrapped in _s()
+      : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
   }
-  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
-}
 
-/*  */
+  function genComment (comment) {
+    return ("_e(" + (JSON.stringify(comment.text)) + ")")
+  }
 
-function bind$1 (el, dir) {
-  el.wrapData = function (code) {
-    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on: on,
-  bind: bind$1,
-  cloak: noop
-}
-
-/*  */
-
-var CodegenState = function CodegenState (options) {
-  this.options = options;
-  this.warn = options.warn || baseWarn;
-  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  this.directives = extend(extend({}, baseDirectives), options.directives);
-  var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
-  this.onceId = 0;
-  this.staticRenderFns = [];
-};
-
-
-
-function generate (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genElement (el, state) {
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state)
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state)
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
-    return genChildren(el, state) || 'void 0'
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state)
-  } else {
-    // component or element
-    var code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
-    } else {
-      var data = el.plain ? undefined : genData$2(el, state);
-
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
-    }
-    // module transforms
-    for (var i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code
-  }
-}
-
-// hoist static sub-trees out
-function genStatic (el, state) {
-  el.staticProcessed = true;
-  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
-}
-
-// v-once
-function genOnce (el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.staticInFor) {
-    var key = '';
-    var parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break
-      }
-      parent = parent.parent;
+  function genSlot (el, state) {
+    var slotName = el.slotName || '"default"';
+    var children = genChildren(el, state);
+    var res = "_t(" + slotName + (children ? ("," + children) : '');
+    var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+    var bind$$1 = el.attrsMap['v-bind'];
+    if ((attrs || bind$$1) && !children) {
+      res += ",null";
     }
-    if (!key) {
-      "development" !== 'production' && state.warn(
-        "v-once can only be used inside v-for that is keyed. "
-      );
-      return genElement(el, state)
+    if (attrs) {
+      res += "," + attrs;
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
-  } else {
-    return genStatic(el, state)
-  }
-}
-
-function genIf (
-  el,
-  state,
-  altGen,
-  altEmpty
-) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-}
-
-function genIfConditions (
-  conditions,
-  state,
-  altGen,
-  altEmpty
-) {
-  if (!conditions.length) {
-    return altEmpty || '_e()'
-  }
-
-  var condition = conditions.shift();
-  if (condition.exp) {
-    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
-  } else {
-    return ("" + (genTernaryExp(condition.block)))
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp (el) {
-    return altGen
-      ? altGen(el, state)
-      : el.once
-        ? genOnce(el, state)
-        : genElement(el, state)
-  }
-}
-
-function genFor (
-  el,
-  state,
-  altGen,
-  altHelper
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-
-  if ("development" !== 'production' &&
-    state.maybeComponent(el) &&
-    el.tag !== 'slot' &&
-    el.tag !== 'template' &&
-    !el.key
-  ) {
-    state.warn(
-      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
-      "v-for should have explicit keys. " +
-      "See https://vuejs.org/guide/list.html#key for more info.",
-      true /* tip */
-    );
+    if (bind$$1) {
+      res += (attrs ? '' : ',null') + "," + bind$$1;
+    }
+    return res + ')'
   }
 
-  el.forProcessed = true; // avoid recursion
-  return (altHelper || '_l') + "((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + ((altGen || genElement)(el, state)) +
-    '})'
-}
-
-function genData$2 (el, state) {
-  var data = '{';
+  // componentName is el.component, take it as argument to shun flow's pessimistic refinement
+  function genComponent (
+    componentName,
+    el,
+    state
+  ) {
+    var children = el.inlineTemplate ? null : genChildren(el, state, true);
+    return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+  }
 
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el, state);
-  if (dirs) { data += dirs + ','; }
-
-  // key
-  if (el.key) {
-    data += "key:" + (el.key) + ",";
-  }
-  // ref
-  if (el.ref) {
-    data += "ref:" + (el.ref) + ",";
-  }
-  if (el.refInFor) {
-    data += "refInFor:true,";
-  }
-  // pre
-  if (el.pre) {
-    data += "pre:true,";
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += "tag:\"" + (el.tag) + "\",";
-  }
-  // module data generation functions
-  for (var i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
-  }
-  // DOM props
-  if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
-  }
-  // event handlers
-  if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
-  }
-  if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
-  }
-  // slot target
-  // only for non-scoped slots
-  if (el.slotTarget && !el.slotScope) {
-    data += "slot:" + (el.slotTarget) + ",";
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
-  }
-  // component v-model
-  if (el.model) {
-    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += inlineTemplate + ",";
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data
-}
-
-function genDirectives (el, state) {
-  var dirs = el.directives;
-  if (!dirs) { return }
-  var res = 'directives:[';
-  var hasRuntime = false;
-  var i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    var gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']'
-  }
-}
-
-function genInlineTemplate (el, state) {
-  var ast = el.children[0];
-  if ("development" !== 'production' && (
-    el.children.length !== 1 || ast.type !== 1
-  )) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, state.options);
-    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
-  }
-}
-
-function genScopedSlots (
-  slots,
-  state
-) {
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
-}
-
-function genScopedSlot (
-  key,
-  el,
-  state
-) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
-  }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
-    "return " + (el.tag === 'template'
-      ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
-      : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
-}
-
-function genChildren (
-  el,
-  state,
-  checkSkip,
-  altGenElement,
-  altGenNode
-) {
-  var children = el.children;
-  if (children.length) {
-    var el$1 = children[0];
-    // optimize single v-for
-    if (children.length === 1 &&
-      el$1.for &&
-      el$1.tag !== 'template' &&
-      el$1.tag !== 'slot'
-    ) {
-      return (altGenElement || genElement)(el$1, state)
-    }
-    var normalizationType = checkSkip
-      ? getNormalizationType(children, state.maybeComponent)
-      : 0;
-    var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType (
-  children,
-  maybeComponent
-) {
-  var res = 0;
-  for (var i = 0; i < children.length; i++) {
-    var el = children[i];
-    if (el.type !== 1) {
-      continue
-    }
-    if (needsNormalization(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
-      res = 2;
-      break
-    }
-    if (maybeComponent(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
-      res = 1;
-    }
-  }
-  return res
-}
-
-function needsNormalization (el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-}
-
-function genNode (node, state) {
-  if (node.type === 1) {
-    return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
-    return genComment(node)
-  } else {
-    return genText(node)
-  }
-}
-
-function genText (text) {
-  return ("_v(" + (text.type === 2
-    ? text.expression // no need for () because already wrapped in _s()
-    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
-}
-
-function genComment (comment) {
-  return ("_e(" + (JSON.stringify(comment.text)) + ")")
-}
-
-function genSlot (el, state) {
-  var slotName = el.slotName || '"default"';
-  var children = genChildren(el, state);
-  var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
-  var bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += ",null";
-  }
-  if (attrs) {
-    res += "," + attrs;
-  }
-  if (bind$$1) {
-    res += (attrs ? '' : ',null') + "," + bind$$1;
-  }
-  return res + ')'
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (
-  componentName,
-  el,
-  state
-) {
-  var children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
-}
-
-function genProps (props) {
-  var res = '';
-  for (var i = 0; i < props.length; i++) {
-    var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+  function genProps (props) {
+    var res = '';
+    for (var i = 0; i < props.length; i++) {
+      var prop = props[i];
+      /* istanbul ignore if */
+      {
+        res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+      }
     }
+    return res.slice(0, -1)
   }
-  return res.slice(0, -1)
-}
 
-// #3895, #4268
-function transformSpecialNewlines (text) {
-  return text
-    .replace(/\u2028/g, '\\u2028')
-    .replace(/\u2029/g, '\\u2029')
-}
+  // #3895, #4268
+  function transformSpecialNewlines (text) {
+    return text
+      .replace(/\u2028/g, '\\u2028')
+      .replace(/\u2029/g, '\\u2029')
+  }
 
-/*  */
+  /*  */
 
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-var prohibitedKeywordRE = new RegExp('\\b' + (
-  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-  'super,throw,while,yield,delete,export,import,return,switch,default,' +
-  'extends,finally,continue,debugger,function,arguments'
-).split(',').join('\\b|\\b') + '\\b');
+  // these keywords should not appear inside expressions, but operators like
+  // typeof, instanceof and in are allowed
+  var prohibitedKeywordRE = new RegExp('\\b' + (
+    'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+    'super,throw,while,yield,delete,export,import,return,switch,default,' +
+    'extends,finally,continue,debugger,function,arguments'
+  ).split(',').join('\\b|\\b') + '\\b');
 
-// these unary operators should not be used as property/method names
-var unaryOperatorsRE = new RegExp('\\b' + (
-  'delete,typeof,void'
-).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+  // these unary operators should not be used as property/method names
+  var unaryOperatorsRE = new RegExp('\\b' + (
+    'delete,typeof,void'
+  ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
 
-// strip strings in expressions
-var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+  // strip strings in expressions
+  var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
-// detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
-  if (ast) {
-    checkNode(ast, errors);
+  // detect problematic expressions in a template
+  function detectErrors (ast) {
+    var errors = [];
+    if (ast) {
+      checkNode(ast, errors);
+    }
+    return errors
   }
-  return errors
-}
 
-function checkNode (node, errors) {
-  if (node.type === 1) {
-    for (var name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        var value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
-          } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
+  function checkNode (node, errors) {
+    if (node.type === 1) {
+      for (var name in node.attrsMap) {
+        if (dirRE.test(name)) {
+          var value = node.attrsMap[name];
+          if (value) {
+            if (name === 'v-for') {
+              checkFor(node, ("v-for=\"" + value + "\""), errors);
+            } else if (onRE.test(name)) {
+              checkEvent(value, (name + "=\"" + value + "\""), errors);
+            } else {
+              checkExpression(value, (name + "=\"" + value + "\""), errors);
+            }
           }
         }
       }
-    }
-    if (node.children) {
-      for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
+      if (node.children) {
+        for (var i = 0; i < node.children.length; i++) {
+          checkNode(node.children[i], errors);
+        }
       }
-    }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
-  }
-}
-
-function checkEvent (exp, text, errors) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
-      "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
-    );
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier (
-  ident,
-  type,
-  text,
-  errors
-) {
-  if (typeof ident === 'string') {
-    try {
-      new Function(("var " + ident + "=_"));
-    } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    } else if (node.type === 2) {
+      checkExpression(node.expression, node.text, errors);
     }
   }
-}
 
-function checkExpression (exp, text, errors) {
-  try {
-    new Function(("return " + exp));
-  } catch (e) {
-    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push(
-        "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
-      );
-    } else {
+  function checkEvent (exp, text, errors) {
+    var stipped = exp.replace(stripStringRE, '');
+    var keywordMatch = stipped.match(unaryOperatorsRE);
+    if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
       errors.push(
-        "invalid expression: " + (e.message) + " in\n\n" +
-        "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
+        "avoid using JavaScript unary operator as property name: " +
+        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
       );
     }
+    checkExpression(exp, text, errors);
   }
-}
 
-/*  */
-
-function createFunction (code, errors) {
-  try {
-    return new Function(code)
-  } catch (err) {
-    errors.push({ err: err, code: code });
-    return noop
+  function checkFor (node, text, errors) {
+    checkExpression(node.for || '', text, errors);
+    checkIdentifier(node.alias, 'v-for alias', text, errors);
+    checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+    checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
   }
-}
-
-function createCompileToFunctionFn (compile) {
-  var cache = Object.create(null);
 
-  return function compileToFunctions (
-    template,
-    options,
-    vm
+  function checkIdentifier (
+    ident,
+    type,
+    text,
+    errors
   ) {
-    options = extend({}, options);
-    var warn$$1 = options.warn || warn;
-    delete options.warn;
-
-    /* istanbul ignore if */
-    {
-      // detect possible CSP restriction
+    if (typeof ident === 'string') {
       try {
-        new Function('return 1');
+        new Function(("var " + ident + "=_"));
       } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$$1(
-            'It seems you are using the standalone build of Vue.js in an ' +
-            'environment with Content Security Policy that prohibits unsafe-eval. ' +
-            'The template compiler cannot work in this environment. Consider ' +
-            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-            'templates into render functions.'
-          );
-        }
+        errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
       }
     }
+  }
 
-    // check cache
-    var key = options.delimiters
-      ? String(options.delimiters) + template
-      : template;
-    if (cache[key]) {
-      return cache[key]
-    }
-
-    // compile
-    var compiled = compile(template, options);
-
-    // check compilation errors/tips
-    {
-      if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
+  function checkExpression (exp, text, errors) {
+    try {
+      new Function(("return " + exp));
+    } catch (e) {
+      var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+      if (keywordMatch) {
+        errors.push(
+          "avoid using JavaScript keyword as property name: " +
+          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+        );
+      } else {
+        errors.push(
+          "invalid expression: " + (e.message) + " in\n\n" +
+          "    " + exp + "\n\n" +
+          "  Raw expression: " + (text.trim()) + "\n"
         );
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
       }
     }
+  }
+
+  /*  */
 
-    // turn code into functions
-    var res = {};
-    var fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-      return createFunction(code, fnGenErrors)
-    });
 
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn$$1(
-          "Failed to generate render function:\n\n" +
-          fnGenErrors.map(function (ref) {
-            var err = ref.err;
-            var code = ref.code;
-
-            return ((err.toString()) + " in\n\n" + code + "\n");
-        }).join('\n'),
-          vm
-        );
-      }
-    }
 
-    return (cache[key] = res)
+  function createFunction (code, errors) {
+    try {
+      return new Function(code)
+    } catch (err) {
+      errors.push({ err: err, code: code });
+      return noop
+    }
   }
-}
 
-/*  */
+  function createCompileToFunctionFn (compile) {
+    var cache = Object.create(null);
 
-function createCompilerCreator (baseCompile) {
-  return function createCompiler (baseOptions) {
-    function compile (
+    return function compileToFunctions (
       template,
-      options
+      options,
+      vm
     ) {
-      var finalOptions = Object.create(baseOptions);
-      var errors = [];
-      var tips = [];
-      finalOptions.warn = function (msg, tip) {
-        (tip ? tips : errors).push(msg);
-      };
+      options = extend({}, options);
+      var warn$$1 = options.warn || warn;
+      delete options.warn;
+
+      /* istanbul ignore if */
+      {
+        // detect possible CSP restriction
+        try {
+          new Function('return 1');
+        } catch (e) {
+          if (e.toString().match(/unsafe-eval|CSP/)) {
+            warn$$1(
+              'It seems you are using the standalone build of Vue.js in an ' +
+              'environment with Content Security Policy that prohibits unsafe-eval. ' +
+              'The template compiler cannot work in this environment. Consider ' +
+              'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+              'templates into render functions.'
+            );
+          }
+        }
+      }
+
+      // check cache
+      var key = options.delimiters
+        ? String(options.delimiters) + template
+        : template;
+      if (cache[key]) {
+        return cache[key]
+      }
+
+      // compile
+      var compiled = compile(template, options);
 
-      if (options) {
-        // merge custom modules
-        if (options.modules) {
-          finalOptions.modules =
-            (baseOptions.modules || []).concat(options.modules);
-        }
-        // merge custom directives
-        if (options.directives) {
-          finalOptions.directives = extend(
-            Object.create(baseOptions.directives || null),
-            options.directives
+      // check compilation errors/tips
+      {
+        if (compiled.errors && compiled.errors.length) {
+          warn$$1(
+            "Error compiling template:\n\n" + template + "\n\n" +
+            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+            vm
           );
         }
-        // copy other options
-        for (var key in options) {
-          if (key !== 'modules' && key !== 'directives') {
-            finalOptions[key] = options[key];
-          }
+        if (compiled.tips && compiled.tips.length) {
+          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
         }
       }
 
-      var compiled = baseCompile(template, finalOptions);
+      // turn code into functions
+      var res = {};
+      var fnGenErrors = [];
+      res.render = createFunction(compiled.render, fnGenErrors);
+      res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+        return createFunction(code, fnGenErrors)
+      });
+
+      // check function generation errors.
+      // this should only happen if there is a bug in the compiler itself.
+      // mostly for codegen development use
+      /* istanbul ignore if */
       {
-        errors.push.apply(errors, detectErrors(compiled.ast));
+        if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+          warn$$1(
+            "Failed to generate render function:\n\n" +
+            fnGenErrors.map(function (ref) {
+              var err = ref.err;
+              var code = ref.code;
+
+              return ((err.toString()) + " in\n\n" + code + "\n");
+          }).join('\n'),
+            vm
+          );
+        }
       }
-      compiled.errors = errors;
-      compiled.tips = tips;
-      return compiled
-    }
 
-    return {
-      compile: compile,
-      compileToFunctions: createCompileToFunctionFn(compile)
+      return (cache[key] = res)
     }
   }
-}
 
-/*  */
+  /*  */
 
-// `createCompilerCreator` allows creating compilers that use alternative
-// parser/optimizer/codegen, e.g the SSR optimizing compiler.
-// Here we just export a default compiler using the default parts.
-var createCompiler = createCompilerCreator(function baseCompile (
-  template,
-  options
-) {
-  var ast = parse(template.trim(), options);
-  if (options.optimize !== false) {
-    optimize(ast, options);
-  }
-  var code = generate(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
+  function createCompilerCreator (baseCompile) {
+    return function createCompiler (baseOptions) {
+      function compile (
+        template,
+        options
+      ) {
+        var finalOptions = Object.create(baseOptions);
+        var errors = [];
+        var tips = [];
+        finalOptions.warn = function (msg, tip) {
+          (tip ? tips : errors).push(msg);
+        };
+
+        if (options) {
+          // merge custom modules
+          if (options.modules) {
+            finalOptions.modules =
+              (baseOptions.modules || []).concat(options.modules);
+          }
+          // merge custom directives
+          if (options.directives) {
+            finalOptions.directives = extend(
+              Object.create(baseOptions.directives || null),
+              options.directives
+            );
+          }
+          // copy other options
+          for (var key in options) {
+            if (key !== 'modules' && key !== 'directives') {
+              finalOptions[key] = options[key];
+            }
+          }
+        }
+
+        var compiled = baseCompile(template, finalOptions);
+        {
+          errors.push.apply(errors, detectErrors(compiled.ast));
+        }
+        compiled.errors = errors;
+        compiled.tips = tips;
+        return compiled
+      }
+
+      return {
+        compile: compile,
+        compileToFunctions: createCompileToFunctionFn(compile)
+      }
+    }
   }
-});
 
-/*  */
+  /*  */
+
+  // `createCompilerCreator` allows creating compilers that use alternative
+  // parser/optimizer/codegen, e.g the SSR optimizing compiler.
+  // Here we just export a default compiler using the default parts.
+  var createCompiler = createCompilerCreator(function baseCompile (
+    template,
+    options
+  ) {
+    var ast = parse(template.trim(), options);
+    if (options.optimize !== false) {
+      optimize(ast, options);
+    }
+    var code = generate(ast, options);
+    return {
+      ast: ast,
+      render: code.render,
+      staticRenderFns: code.staticRenderFns
+    }
+  });
 
-var ref$1 = createCompiler(baseOptions);
-var compileToFunctions = ref$1.compileToFunctions;
+  /*  */
 
-/*  */
+  var ref$1 = createCompiler(baseOptions);
+  var compile = ref$1.compile;
+  var compileToFunctions = ref$1.compileToFunctions;
 
-// check whether current browser encodes a char inside attribute values
-var div;
-function getShouldDecode (href) {
-  div = div || document.createElement('div');
-  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
-  return div.innerHTML.indexOf('&#10;') > 0
-}
+  /*  */
 
-// #3663: IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
-// #6828: chrome encodes content in a[href]
-var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+  // check whether current browser encodes a char inside attribute values
+  var div;
+  function getShouldDecode (href) {
+    div = div || document.createElement('div');
+    div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+    return div.innerHTML.indexOf('&#10;') > 0
+  }
 
-/*  */
+  // #3663: IE encodes newlines inside attribute values while other browsers don't
+  var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+  // #6828: chrome encodes content in a[href]
+  var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
 
-var idToTemplate = cached(function (id) {
-  var el = query(id);
-  return el && el.innerHTML
-});
+  /*  */
 
-var mount = Vue.prototype.$mount;
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && query(el);
+  var idToTemplate = cached(function (id) {
+    var el = query(id);
+    return el && el.innerHTML
+  });
 
-  /* istanbul ignore if */
-  if (el === document.body || el === document.documentElement) {
-    "development" !== 'production' && warn(
-      "Do not mount Vue to <html> or <body> - mount to normal elements instead."
-    );
-    return this
-  }
+  var mount = Vue.prototype.$mount;
+  Vue.prototype.$mount = function (
+    el,
+    hydrating
+  ) {
+    el = el && query(el);
 
-  var options = this.$options;
-  // resolve template/el and convert to render function
-  if (!options.render) {
-    var template = options.template;
-    if (template) {
-      if (typeof template === 'string') {
-        if (template.charAt(0) === '#') {
-          template = idToTemplate(template);
-          /* istanbul ignore if */
-          if ("development" !== 'production' && !template) {
-            warn(
-              ("Template element not found or is empty: " + (options.template)),
-              this
-            );
+    /* istanbul ignore if */
+    if (el === document.body || el === document.documentElement) {
+      warn(
+        "Do not mount Vue to <html> or <body> - mount to normal elements instead."
+      );
+      return this
+    }
+
+    var options = this.$options;
+    // resolve template/el and convert to render function
+    if (!options.render) {
+      var template = options.template;
+      if (template) {
+        if (typeof template === 'string') {
+          if (template.charAt(0) === '#') {
+            template = idToTemplate(template);
+            /* istanbul ignore if */
+            if (!template) {
+              warn(
+                ("Template element not found or is empty: " + (options.template)),
+                this
+              );
+            }
           }
+        } else if (template.nodeType) {
+          template = template.innerHTML;
+        } else {
+          {
+            warn('invalid template option:' + template, this);
+          }
+          return this
         }
-      } else if (template.nodeType) {
-        template = template.innerHTML;
-      } else {
-        {
-          warn('invalid template option:' + template, this);
-        }
-        return this
-      }
-    } else if (el) {
-      template = getOuterHTML(el);
-    }
-    if (template) {
-      /* istanbul ignore if */
-      if ("development" !== 'production' && config.performance && mark) {
-        mark('compile');
+      } else if (el) {
+        template = getOuterHTML(el);
       }
+      if (template) {
+        /* istanbul ignore if */
+        if (config.performance && mark) {
+          mark('compile');
+        }
 
-      var ref = compileToFunctions(template, {
-        shouldDecodeNewlines: shouldDecodeNewlines,
-        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
-        delimiters: options.delimiters,
-        comments: options.comments
-      }, this);
-      var render = ref.render;
-      var staticRenderFns = ref.staticRenderFns;
-      options.render = render;
-      options.staticRenderFns = staticRenderFns;
+        var ref = compileToFunctions(template, {
+          shouldDecodeNewlines: shouldDecodeNewlines,
+          shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
+          delimiters: options.delimiters,
+          comments: options.comments
+        }, this);
+        var render = ref.render;
+        var staticRenderFns = ref.staticRenderFns;
+        options.render = render;
+        options.staticRenderFns = staticRenderFns;
 
-      /* istanbul ignore if */
-      if ("development" !== 'production' && config.performance && mark) {
-        mark('compile end');
-        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
+        /* istanbul ignore if */
+        if (config.performance && mark) {
+          mark('compile end');
+          measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
+        }
       }
     }
-  }
-  return mount.call(this, el, hydrating)
-};
+    return mount.call(this, el, hydrating)
+  };
 
-/**
- * Get outerHTML of elements, taking care
- * of SVG elements in IE as well.
- */
-function getOuterHTML (el) {
-  if (el.outerHTML) {
-    return el.outerHTML
-  } else {
-    var container = document.createElement('div');
-    container.appendChild(el.cloneNode(true));
-    return container.innerHTML
+  /**
+   * Get outerHTML of elements, taking care
+   * of SVG elements in IE as well.
+   */
+  function getOuterHTML (el) {
+    if (el.outerHTML) {
+      return el.outerHTML
+    } else {
+      var container = document.createElement('div');
+      container.appendChild(el.cloneNode(true));
+      return container.innerHTML
+    }
   }
-}
 
-Vue.compile = compileToFunctions;
+  Vue.compile = compileToFunctions;
 
-return Vue;
+  return Vue;
 
 })));
diff --git a/dist/vue.min.js b/dist/vue.min.js
index db26f4f8be3..9953d1915ce 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function v(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(e,t){return h.call(e,t)}function y(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var g=/-(\w)/g,_=y(function(e){return e.replace(g,function(e,t){return t?t.toUpperCase():""})}),b=y(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),$=/\B([A-Z])/g,w=y(function(e){return e.replace($,"-$1").toLowerCase()});var C=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function x(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function A(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function O(e,t,n){}var S=function(e,t,n){return!1},T=function(e){return e};function j(e,t){if(e===t)return!0;var 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o=r.delimiters?String(r.delimiters)+n:n;if(t[o])return t[o];var a=e(n,r),s={},c=[];return s.render=wa(a.render,c),s.staticRenderFns=a.staticRenderFns.map(function(e){return wa(e,c)}),t[o]=s}}(t)}})(Zo),Aa=(ka.compile,ka.compileToFunctions);function Oa(e){return(xa=xa||document.createElement("div")).innerHTML=e?'<a href="\n"/>':'<div a="\n"/>',xa.innerHTML.indexOf("&#10;")>0}var Sa=!!B&&Oa(!1),Ta=!!B&&Oa(!0),Na=y(function(e){var t=Pn(e);return t&&t.innerHTML}),ja=un.prototype.$mount;return un.prototype.$mount=function(e,t){if((e=e&&Pn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=Na(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index d642b2a6393..bd2f965ac1c 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -9,8 +9,8 @@
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -28,7 +28,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -50,7 +50,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -90,7 +90,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -122,12 +122,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -139,7 +139,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -181,11 +181,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -247,10 +247,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -259,15 +261,12 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
-/**
- * Return same value
- */
-var identity = function (_) { return _; };
+/* eslint-enable no-unused-vars */
 
 /**
- * Generate a static keys string from compiler modules.
+ * Return the same value.
  */
-
+var identity = function (_) { return _; };
 
 /**
  * Check if two values are loosely equal - that is,
@@ -285,6 +284,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -306,6 +307,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -350,6 +356,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -432,11 +440,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -521,7 +535,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -548,7 +562,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -662,7 +676,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -691,6 +704,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if (process.env.NODE_ENV !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -702,13 +721,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -779,7 +799,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -871,10 +894,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -882,14 +906,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -905,17 +929,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -956,7 +980,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1004,6 +1028,8 @@ function defineReactive (
       if (process.env.NODE_ENV !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1047,7 +1073,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1134,7 +1160,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1457,15 +1487,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -1518,6 +1555,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -1554,7 +1593,7 @@ function validateProp (
   if (
     process.env.NODE_ENV !== 'production' &&
     // skip validation for weex recycle-list child component props
-    !(false && isObject(value) && ('@binding' in value))
+    !(false)
   ) {
     assertProp(prop, key, value, vm, absent);
   }
@@ -1627,11 +1666,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -1698,6 +1736,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -1744,7 +1825,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -1822,9 +1902,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -1882,6 +1964,16 @@ if (process.env.NODE_ENV !== 'production') {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -1903,9 +1995,11 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -1914,7 +2008,8 @@ if (process.env.NODE_ENV !== 'production') {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -2035,14 +2130,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2052,7 +2147,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -2307,10 +2405,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -2319,7 +2421,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2330,7 +2432,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2357,7 +2459,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -2420,37 +2522,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -2475,8 +2581,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -2486,7 +2590,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -2927,7 +3031,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -3016,7 +3119,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -3063,6 +3166,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if (process.env.NODE_ENV !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -3070,6 +3178,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -3093,16 +3203,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.computed = !!options.computed;
+    this.lazy = !!options.lazy;
     this.sync = !!options.sync;
     this.before = options.before;
   } else {
-    this.deep = this.user = this.computed = this.sync = false;
+    this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.computed; // for computed watchers
+  this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3116,7 +3226,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       process.env.NODE_ENV !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -3125,12 +3235,9 @@ var Watcher = function Watcher (
       );
     }
   }
-  if (this.computed) {
-    this.value = undefined;
-    this.dep = new Dep();
-  } else {
-    this.value = this.get();
-  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
 };
 
 /**
@@ -3178,13 +3285,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -3202,27 +3307,9 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
-    var this$1 = this;
-
   /* istanbul ignore else */
-  if (this.computed) {
-    // A computed property watcher has two modes: lazy and activated.
-    // It initializes as lazy by default, and only becomes activated when
-    // it is depended on by at least one subscriber, which is typically
-    // another computed property or a component's render function.
-    if (this.dep.subs.length === 0) {
-      // In lazy mode, we don't want to perform computations until necessary,
-      // so we simply mark the watcher as dirty. The actual computation is
-      // performed just-in-time in this.evaluate() when the computed property
-      // is accessed.
-      this.dirty = true;
-    } else {
-      // In activated mode, we want to proactively perform the computation
-      // but only notify our subscribers when the value has indeed changed.
-      this.getAndInvoke(function () {
-        this$1.dep.notify();
-      });
-    }
+  if (this.lazy) {
+    this.dirty = true;
   } else if (this.sync) {
     this.run();
   } else {
@@ -3236,54 +3323,47 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    this.getAndInvoke(this.cb);
-  }
-};
-
-Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
-  var value = this.get();
-  if (
-    value !== this.value ||
-    // Deep watchers and watchers on Object/Arrays should fire even
-    // when the value is the same, because the value may
-    // have mutated.
-    isObject(value) ||
-    this.deep
-  ) {
-    // set new value
-    var oldValue = this.value;
-    this.value = value;
-    this.dirty = false;
-    if (this.user) {
-      try {
-        cb.call(this.vm, value, oldValue);
-      } catch (e) {
-        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
       }
-    } else {
-      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate and return the value of the watcher.
- * This only gets called for computed property watchers.
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  if (this.dirty) {
-    this.value = this.get();
-    this.dirty = false;
-  }
-  return this.value
+  this.value = this.get();
+  this.dirty = false;
 };
 
 /**
- * Depend on this watcher. Only for computed property watchers.
+ * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-  if (this.dep && Dep.target) {
-    this.dep.depend();
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
   }
 };
 
@@ -3291,8 +3371,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -3302,7 +3380,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -3367,8 +3445,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -3379,7 +3457,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3448,7 +3526,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { computed: true };
+var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3500,17 +3578,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if (process.env.NODE_ENV !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -3528,19 +3604,30 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      watcher.depend();
-      return watcher.evaluate()
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
     }
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -3558,7 +3645,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3600,7 +3687,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -3630,7 +3717,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -3656,7 +3747,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3665,7 +3756,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -3769,19 +3860,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -3869,12 +3948,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -4080,24 +4160,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (process.env.NODE_ENV !== 'production') {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -4112,21 +4195,8 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
@@ -4294,10 +4364,6 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
@@ -4345,12 +4411,21 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -4438,7 +4513,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -4520,15 +4595,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4546,14 +4621,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (process.env.NODE_ENV !== 'production') {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -4570,15 +4637,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -4913,6 +4976,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4976,10 +5041,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -5039,11 +5102,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -5067,7 +5130,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -5109,7 +5172,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17-beta.0';
+Vue.version = '2.5.18-beta.0';
 
 /*  */
 
@@ -5264,8 +5327,6 @@ var isSVG = makeMap(
   true
 );
 
-
-
 var isReservedTag = function (tag) {
   return isHTMLTag(tag) || isSVG(tag)
 };
@@ -5387,20 +5448,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5418,7 +5478,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -5463,6 +5523,12 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
+function childrenIgnored (vnode) {
+  return vnode && vnode.data && vnode.data.domProps && (
+    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+  )
+}
+
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5470,6 +5536,7 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
+        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
@@ -5519,13 +5586,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -5686,7 +5753,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -5841,20 +5908,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -5868,7 +5935,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -5912,11 +5979,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -5957,6 +6036,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -6115,7 +6197,7 @@ function createPatchFunction (backend) {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -6211,7 +6293,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6322,7 +6404,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -6406,7 +6488,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -6424,7 +6506,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -6462,45 +6544,14 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
 /*  */
 
-
-
-
-
-
-
-
-
-// add a raw attr (use this in preTransforms)
-
-
-
-
-
-
-
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-
 /*  */
 
-/**
- * Cross-platform code generation for component v-model
- */
-
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-
 /*  */
 
 // in some cases, the event used has to be determined at runtime
@@ -6533,7 +6584,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -6546,12 +6597,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6582,14 +6631,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -6683,7 +6732,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -6844,10 +6893,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -6861,7 +6912,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -6886,7 +6937,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -6910,20 +6961,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -7026,11 +7077,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -7084,8 +7136,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -7317,7 +7373,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -7406,7 +7462,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -7415,7 +7471,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -7626,18 +7682,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -7703,6 +7756,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -7717,7 +7774,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -7782,7 +7839,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -7820,21 +7877,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -7930,6 +7976,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -7967,7 +8016,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -8000,7 +8049,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index a89ab5d98ca..764fab1cc0a 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -7,8 +7,8 @@
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -26,7 +26,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -48,7 +48,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -88,7 +88,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -120,12 +120,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -137,7 +137,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -179,11 +179,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -245,10 +245,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -257,15 +259,12 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
-/**
- * Return same value
- */
-var identity = function (_) { return _; };
+/* eslint-enable no-unused-vars */
 
 /**
- * Generate a static keys string from compiler modules.
+ * Return the same value.
  */
-
+var identity = function (_) { return _; };
 
 /**
  * Check if two values are loosely equal - that is,
@@ -283,6 +282,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -304,6 +305,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -348,6 +354,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -430,11 +438,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -519,7 +533,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -546,7 +560,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -660,7 +674,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -689,6 +702,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if (process.env.NODE_ENV !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -700,13 +719,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*  */
@@ -777,7 +797,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -869,10 +892,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -880,14 +904,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -903,17 +927,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -954,7 +978,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1002,6 +1026,8 @@ function defineReactive (
       if (process.env.NODE_ENV !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1045,7 +1071,7 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
@@ -1132,7 +1158,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1455,15 +1485,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -1516,6 +1553,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -1552,7 +1591,7 @@ function validateProp (
   if (
     process.env.NODE_ENV !== 'production' &&
     // skip validation for weex recycle-list child component props
-    !(false && isObject(value) && ('@binding' in value))
+    !(false)
   ) {
     assertProp(prop, key, value, vm, absent);
   }
@@ -1625,11 +1664,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -1696,6 +1734,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -1742,7 +1823,6 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
 var pending = false;
@@ -1820,9 +1900,11 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
 function withMacroTask (fn) {
   return fn._withTask || (fn._withTask = function () {
     useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
   })
 }
 
@@ -1880,6 +1962,16 @@ if (process.env.NODE_ENV !== 'production') {
     );
   };
 
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
   var hasProxy =
     typeof Proxy !== 'undefined' && isNative(Proxy);
 
@@ -1901,9 +1993,11 @@ if (process.env.NODE_ENV !== 'production') {
   var hasHandler = {
     has: function has (target, key) {
       var has = key in target;
-      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
       if (!has && !isAllowed) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return has || !isAllowed
     }
@@ -1912,7 +2006,8 @@ if (process.env.NODE_ENV !== 'production') {
   var getHandler = {
     get: function get (target, key) {
       if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
       }
       return target[key]
     }
@@ -2033,14 +2128,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -2050,7 +2145,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -2305,10 +2403,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -2317,7 +2419,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2328,7 +2430,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -2355,7 +2457,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -2418,37 +2520,41 @@ function initEvents (vm) {
 
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
 function eventsMixin (Vue) {
   var hookRE = /^hook:/;
   Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
+        vm.$on(event[i], fn);
       }
     } else {
       (vm._events[event] || (vm._events[event] = [])).push(fn);
@@ -2473,8 +2579,6 @@ function eventsMixin (Vue) {
   };
 
   Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
-
     var vm = this;
     // all
     if (!arguments.length) {
@@ -2484,7 +2588,7 @@ function eventsMixin (Vue) {
     // array of events
     if (Array.isArray(event)) {
       for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+        vm.$off(event[i], fn);
       }
       return vm
     }
@@ -2925,7 +3029,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
 var MAX_UPDATE_COUNT = 100;
 
 var queue = [];
@@ -3014,7 +3117,7 @@ function callUpdatedHooks (queue) {
   while (i--) {
     var watcher = queue[i];
     var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
       callHook(vm, 'updated');
     }
   }
@@ -3061,6 +3164,11 @@ function queueWatcher (watcher) {
     // queue the flush
     if (!waiting) {
       waiting = true;
+
+      if (process.env.NODE_ENV !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
       nextTick(flushSchedulerQueue);
     }
   }
@@ -3068,6 +3176,8 @@ function queueWatcher (watcher) {
 
 /*  */
 
+
+
 var uid$1 = 0;
 
 /**
@@ -3091,16 +3201,16 @@ var Watcher = function Watcher (
   if (options) {
     this.deep = !!options.deep;
     this.user = !!options.user;
-    this.computed = !!options.computed;
+    this.lazy = !!options.lazy;
     this.sync = !!options.sync;
     this.before = options.before;
   } else {
-    this.deep = this.user = this.computed = this.sync = false;
+    this.deep = this.user = this.lazy = this.sync = false;
   }
   this.cb = cb;
   this.id = ++uid$1; // uid for batching
   this.active = true;
-  this.dirty = this.computed; // for computed watchers
+  this.dirty = this.lazy; // for lazy watchers
   this.deps = [];
   this.newDeps = [];
   this.depIds = new _Set();
@@ -3114,7 +3224,7 @@ var Watcher = function Watcher (
   } else {
     this.getter = parsePath(expOrFn);
     if (!this.getter) {
-      this.getter = function () {};
+      this.getter = noop;
       process.env.NODE_ENV !== 'production' && warn(
         "Failed watching path: \"" + expOrFn + "\" " +
         'Watcher only accepts simple dot-delimited paths. ' +
@@ -3123,12 +3233,9 @@ var Watcher = function Watcher (
       );
     }
   }
-  if (this.computed) {
-    this.value = undefined;
-    this.dep = new Dep();
-  } else {
-    this.value = this.get();
-  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
 };
 
 /**
@@ -3176,13 +3283,11 @@ Watcher.prototype.addDep = function addDep (dep) {
  * Clean up for dependency collection.
  */
 Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
   var i = this.deps.length;
   while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
   var tmp = this.depIds;
@@ -3200,27 +3305,9 @@ Watcher.prototype.cleanupDeps = function cleanupDeps () {
  * Will be called when a dependency changes.
  */
 Watcher.prototype.update = function update () {
-    var this$1 = this;
-
   /* istanbul ignore else */
-  if (this.computed) {
-    // A computed property watcher has two modes: lazy and activated.
-    // It initializes as lazy by default, and only becomes activated when
-    // it is depended on by at least one subscriber, which is typically
-    // another computed property or a component's render function.
-    if (this.dep.subs.length === 0) {
-      // In lazy mode, we don't want to perform computations until necessary,
-      // so we simply mark the watcher as dirty. The actual computation is
-      // performed just-in-time in this.evaluate() when the computed property
-      // is accessed.
-      this.dirty = true;
-    } else {
-      // In activated mode, we want to proactively perform the computation
-      // but only notify our subscribers when the value has indeed changed.
-      this.getAndInvoke(function () {
-        this$1.dep.notify();
-      });
-    }
+  if (this.lazy) {
+    this.dirty = true;
   } else if (this.sync) {
     this.run();
   } else {
@@ -3234,54 +3321,47 @@ Watcher.prototype.update = function update () {
  */
 Watcher.prototype.run = function run () {
   if (this.active) {
-    this.getAndInvoke(this.cb);
-  }
-};
-
-Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
-  var value = this.get();
-  if (
-    value !== this.value ||
-    // Deep watchers and watchers on Object/Arrays should fire even
-    // when the value is the same, because the value may
-    // have mutated.
-    isObject(value) ||
-    this.deep
-  ) {
-    // set new value
-    var oldValue = this.value;
-    this.value = value;
-    this.dirty = false;
-    if (this.user) {
-      try {
-        cb.call(this.vm, value, oldValue);
-      } catch (e) {
-        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
       }
-    } else {
-      cb.call(this.vm, value, oldValue);
     }
   }
 };
 
 /**
- * Evaluate and return the value of the watcher.
- * This only gets called for computed property watchers.
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
  */
 Watcher.prototype.evaluate = function evaluate () {
-  if (this.dirty) {
-    this.value = this.get();
-    this.dirty = false;
-  }
-  return this.value
+  this.value = this.get();
+  this.dirty = false;
 };
 
 /**
- * Depend on this watcher. Only for computed property watchers.
+ * Depend on all deps collected by this watcher.
  */
 Watcher.prototype.depend = function depend () {
-  if (this.dep && Dep.target) {
-    this.dep.depend();
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
   }
 };
 
@@ -3289,8 +3369,6 @@ Watcher.prototype.depend = function depend () {
  * Remove self from all dependencies' subscriber list.
  */
 Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
-
   if (this.active) {
     // remove self from vm's watcher list
     // this is a somewhat expensive operation so we skip it
@@ -3300,7 +3378,7 @@ Watcher.prototype.teardown = function teardown () {
     }
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].removeSub(this);
     }
     this.active = false;
   }
@@ -3365,8 +3443,8 @@ function initProps (vm, propsOptions) {
           vm
         );
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
           warn(
             "Avoid mutating a prop directly since the value will be " +
             "overwritten whenever the parent component re-renders. " +
@@ -3377,7 +3455,7 @@ function initProps (vm, propsOptions) {
         }
       });
     } else {
-      defineReactive(props, key, value);
+      defineReactive$$1(props, key, value);
     }
     // static props are already proxied on the component's prototype
     // during Vue.extend(). We only need to proxy props defined at
@@ -3446,7 +3524,7 @@ function getData (data, vm) {
   }
 }
 
-var computedWatcherOptions = { computed: true };
+var computedWatcherOptions = { lazy: true };
 
 function initComputed (vm, computed) {
   // $flow-disable-line
@@ -3498,17 +3576,15 @@ function defineComputed (
   if (typeof userDef === 'function') {
     sharedPropertyDefinition.get = shouldCache
       ? createComputedGetter(key)
-      : userDef;
+      : createGetterInvoker(userDef);
     sharedPropertyDefinition.set = noop;
   } else {
     sharedPropertyDefinition.get = userDef.get
       ? shouldCache && userDef.cache !== false
         ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
+        : createGetterInvoker(userDef.get)
       : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
   if (process.env.NODE_ENV !== 'production' &&
       sharedPropertyDefinition.set === noop) {
@@ -3526,19 +3602,30 @@ function createComputedGetter (key) {
   return function computedGetter () {
     var watcher = this._computedWatchers && this._computedWatchers[key];
     if (watcher) {
-      watcher.depend();
-      return watcher.evaluate()
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
     }
   }
 }
 
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
 function initMethods (vm, methods) {
   var props = vm.$options.props;
   for (var key in methods) {
     if (process.env.NODE_ENV !== 'production') {
-      if (methods[key] == null) {
+      if (typeof methods[key] !== 'function') {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
           "Did you reference the function correctly?",
           vm
         );
@@ -3556,7 +3643,7 @@ function initMethods (vm, methods) {
         );
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
   }
 }
 
@@ -3598,7 +3685,7 @@ function stateMixin (Vue) {
   var propsDef = {};
   propsDef.get = function () { return this._props };
   if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function (newData) {
+    dataDef.set = function () {
       warn(
         'Avoid replacing instance root $data. ' +
         'Use nested data properties instead.',
@@ -3628,7 +3715,11 @@ function stateMixin (Vue) {
     options.user = true;
     var watcher = new Watcher(vm, expOrFn, cb, options);
     if (options.immediate) {
-      cb.call(vm, watcher.value);
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
     }
     return function unwatchFn () {
       watcher.teardown();
@@ -3654,7 +3745,7 @@ function initInjections (vm) {
     Object.keys(result).forEach(function (key) {
       /* istanbul ignore else */
       if (process.env.NODE_ENV !== 'production') {
-        defineReactive(vm, key, result[key], function () {
+        defineReactive$$1(vm, key, result[key], function () {
           warn(
             "Avoid mutating an injected value directly since the changes will be " +
             "overwritten whenever the provided component re-renders. " +
@@ -3663,7 +3754,7 @@ function initInjections (vm) {
           );
         });
       } else {
-        defineReactive(vm, key, result[key]);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
     toggleObserving(true);
@@ -3767,19 +3858,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -3867,12 +3946,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -4078,24 +4158,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (process.env.NODE_ENV !== 'production') {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -4110,21 +4193,8 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
@@ -4292,10 +4362,6 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
@@ -4343,12 +4409,21 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -4436,7 +4511,7 @@ function _createElement (
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
       );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -4518,15 +4593,15 @@ function initRender (vm) {
 
   /* istanbul ignore else */
   if (process.env.NODE_ENV !== 'production') {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
       !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
     }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
       !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
     }, true);
   } else {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
 }
 
@@ -4544,14 +4619,6 @@ function renderMixin (Vue) {
     var render = ref.render;
     var _parentVnode = ref._parentVnode;
 
-    // reset _rendered flag on slots for duplicate slot check
-    if (process.env.NODE_ENV !== 'production') {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
-    }
-
     if (_parentVnode) {
       vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
     }
@@ -4568,15 +4635,11 @@ function renderMixin (Vue) {
       // return error render result,
       // or previous vnode to prevent render error causing blank component
       /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
+      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
           vnode = vm._vnode;
         }
       } else {
@@ -4911,6 +4974,8 @@ function initAssetRegisters (Vue) {
 
 /*  */
 
+
+
 function getComponentName (opts) {
   return opts && (opts.Ctor.options.name || opts.tag)
 }
@@ -4974,10 +5039,8 @@ var KeepAlive = {
   },
 
   destroyed: function destroyed () {
-    var this$1 = this;
-
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
     }
   },
 
@@ -5037,11 +5100,11 @@ var KeepAlive = {
     }
     return vnode || (slot && slot[0])
   }
-}
+};
 
 var builtInComponents = {
   KeepAlive: KeepAlive
-}
+};
 
 /*  */
 
@@ -5065,7 +5128,7 @@ function initGlobalAPI (Vue) {
     warn: warn,
     extend: extend,
     mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+    defineReactive: defineReactive$$1
   };
 
   Vue.set = set;
@@ -5107,7 +5170,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.17-beta.0';
+Vue.version = '2.5.18-beta.0';
 
 /*  */
 
@@ -5262,8 +5325,6 @@ var isSVG = makeMap(
   true
 );
 
-
-
 var isReservedTag = function (tag) {
   return isHTMLTag(tag) || isSVG(tag)
 };
@@ -5385,20 +5446,19 @@ function setStyleScope (node, scopeId) {
   node.setAttribute(scopeId, '');
 }
 
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
 });
 
 /*  */
@@ -5416,7 +5476,7 @@ var ref = {
   destroy: function destroy (vnode) {
     registerRef(vnode, true);
   }
-}
+};
 
 function registerRef (vnode, isRemoval) {
   var key = vnode.data.ref;
@@ -5461,6 +5521,12 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
+function childrenIgnored (vnode) {
+  return vnode && vnode.data && vnode.data.domProps && (
+    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+  )
+}
+
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5468,6 +5534,7 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
+        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
@@ -5517,13 +5584,13 @@ function createPatchFunction (backend) {
   }
 
   function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
         removeNode(childElm);
       }
     }
-    remove.listeners = listeners;
-    return remove
+    remove$$1.listeners = listeners;
+    return remove$$1
   }
 
   function removeNode (el) {
@@ -5684,7 +5751,7 @@ function createPatchFunction (backend) {
   function insert (parent, elm, ref$$1) {
     if (isDef(parent)) {
       if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
           nodeOps.insertBefore(parent, elm, ref$$1);
         }
       } else {
@@ -5839,20 +5906,20 @@ function createPatchFunction (backend) {
       } else if (isUndef(oldEndVnode)) {
         oldEndVnode = oldCh[--oldEndIdx];
       } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         oldStartVnode = oldCh[++oldStartIdx];
         newStartVnode = newCh[++newStartIdx];
       } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         oldEndVnode = oldCh[--oldEndIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
         canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
         oldStartVnode = oldCh[++oldStartIdx];
         newEndVnode = newCh[--newEndIdx];
       } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
         canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
         oldEndVnode = oldCh[--oldEndIdx];
         newStartVnode = newCh[++newStartIdx];
@@ -5866,7 +5933,7 @@ function createPatchFunction (backend) {
         } else {
           vnodeToMove = oldCh[idxInOld];
           if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
             oldCh[idxInOld] = undefined;
             canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
           } else {
@@ -5910,11 +5977,23 @@ function createPatchFunction (backend) {
     }
   }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
     if (oldVnode === vnode) {
       return
     }
 
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
     var elm = vnode.elm = oldVnode.elm;
 
     if (isTrue(oldVnode.isAsyncPlaceholder)) {
@@ -5955,6 +6034,9 @@ function createPatchFunction (backend) {
       if (isDef(oldCh) && isDef(ch)) {
         if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
       } else if (isDef(ch)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkDuplicateKeys(ch);
+        }
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
@@ -6113,7 +6195,7 @@ function createPatchFunction (backend) {
       var isRealElement = isDef(oldVnode.nodeType);
       if (!isRealElement && sameVnode(oldVnode, vnode)) {
         // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
       } else {
         if (isRealElement) {
           // mounting to a real element
@@ -6209,7 +6291,7 @@ var directives = {
   destroy: function unbindDirectives (vnode) {
     updateDirectives(vnode, emptyNode);
   }
-}
+};
 
 function updateDirectives (oldVnode, vnode) {
   if (oldVnode.data.directives || vnode.data.directives) {
@@ -6320,7 +6402,7 @@ function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
 var baseModules = [
   ref,
   directives
-]
+];
 
 /*  */
 
@@ -6404,7 +6486,7 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
       key === 'placeholder' && !el.__ieph
     ) {
       var blocker = function (e) {
@@ -6422,7 +6504,7 @@ function baseSetAttr (el, key, value) {
 var attrs = {
   create: updateAttrs,
   update: updateAttrs
-}
+};
 
 /*  */
 
@@ -6460,45 +6542,14 @@ function updateClass (oldVnode, vnode) {
 var klass = {
   create: updateClass,
   update: updateClass
-}
+};
 
 /*  */
 
 /*  */
 
-
-
-
-
-
-
-
-
-// add a raw attr (use this in preTransforms)
-
-
-
-
-
-
-
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-
 /*  */
 
-/**
- * Cross-platform code generation for component v-model
- */
-
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-
 /*  */
 
 // in some cases, the event used has to be determined at runtime
@@ -6531,7 +6582,7 @@ function normalizeEvents (on) {
 
 var target$1;
 
-function createOnceHandler (handler, event, capture) {
+function createOnceHandler$1 (event, handler, capture) {
   var _target = target$1; // save current target element in closure
   return function onceHandler () {
     var res = handler.apply(null, arguments);
@@ -6544,12 +6595,10 @@ function createOnceHandler (handler, event, capture) {
 function add$1 (
   event,
   handler,
-  once$$1,
   capture,
   passive
 ) {
   handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
   target$1.addEventListener(
     event,
     handler,
@@ -6580,14 +6629,14 @@ function updateDOMListeners (oldVnode, vnode) {
   var oldOn = oldVnode.data.on || {};
   target$1 = vnode.elm;
   normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
   target$1 = undefined;
 }
 
 var events = {
   create: updateDOMListeners,
   update: updateDOMListeners
-}
+};
 
 /*  */
 
@@ -6681,7 +6730,7 @@ function isDirtyWithModifiers (elm, newVal) {
 var domProps = {
   create: updateDOMProps,
   update: updateDOMProps
-}
+};
 
 /*  */
 
@@ -6842,10 +6891,12 @@ function updateStyle (oldVnode, vnode) {
 var style = {
   create: updateStyle,
   update: updateStyle
-}
+};
 
 /*  */
 
+var whitespaceRE = /\s+/;
+
 /**
  * Add class with compatibility for SVG since classList is not supported on
  * SVG elements in IE
@@ -6859,7 +6910,7 @@ function addClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
     } else {
       el.classList.add(cls);
     }
@@ -6884,7 +6935,7 @@ function removeClass (el, cls) {
   /* istanbul ignore else */
   if (el.classList) {
     if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
     } else {
       el.classList.remove(cls);
     }
@@ -6908,20 +6959,20 @@ function removeClass (el, cls) {
 
 /*  */
 
-function resolveTransition (def) {
-  if (!def) {
+function resolveTransition (def$$1) {
+  if (!def$$1) {
     return
   }
   /* istanbul ignore else */
-  if (typeof def === 'object') {
+  if (typeof def$$1 === 'object') {
     var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
     }
-    extend(res, def);
+    extend(res, def$$1);
     return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
   }
 }
 
@@ -7024,11 +7075,12 @@ var transformRE = /\b(transform|all)(,|$)/;
 
 function getTransitionInfo (el, expectedType) {
   var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
   var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
   var animationTimeout = getTimeout(animationDelays, animationDurations);
 
   var type;
@@ -7082,8 +7134,12 @@ function getTimeout (delays, durations) {
   }))
 }
 
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
 function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
 }
 
 /*  */
@@ -7315,7 +7371,7 @@ function leave (vnode, rm) {
       return
     }
     // record leaving element
-    if (!vnode.data.show) {
+    if (!vnode.data.show && el.parentNode) {
       (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
     }
     beforeLeave && beforeLeave(el);
@@ -7404,7 +7460,7 @@ var transition = inBrowser ? {
       rm();
     }
   }
-} : {}
+} : {};
 
 var platformModules = [
   attrs,
@@ -7413,7 +7469,7 @@ var platformModules = [
   domProps,
   style,
   transition
-]
+];
 
 /*  */
 
@@ -7624,18 +7680,15 @@ var show = {
       el.style.display = el.__vOriginalDisplay;
     }
   }
-}
+};
 
 var platformDirectives = {
   model: directive,
   show: show
-}
+};
 
 /*  */
 
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
 var transitionProps = {
   name: String,
   appear: Boolean,
@@ -7701,6 +7754,10 @@ function isSameChild (child, oldChild) {
   return oldChild.key === child.key && oldChild.tag === child.tag
 }
 
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
 var Transition = {
   name: 'transition',
   props: transitionProps,
@@ -7715,7 +7772,7 @@ var Transition = {
     }
 
     // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
+    children = children.filter(isNotTextNode);
     /* istanbul ignore if */
     if (!children.length) {
       return
@@ -7780,7 +7837,7 @@ var Transition = {
 
     // mark v-show
     // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
       child.data.show = true;
     }
 
@@ -7818,21 +7875,10 @@ var Transition = {
 
     return rawChild
   }
-}
+};
 
 /*  */
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
 var props = extend({
   tag: String,
   moveClass: String
@@ -7928,6 +7974,9 @@ var TransitionGroup = {
         addTransitionClass(el, moveClass);
         s.transform = s.WebkitTransform = s.transitionDuration = '';
         el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
           if (!e || /transform$/.test(e.propertyName)) {
             el.removeEventListener(transitionEndEvent, cb);
             el._moveCb = null;
@@ -7965,7 +8014,7 @@ var TransitionGroup = {
       return (this._hasMove = info.hasTransform)
     }
   }
-}
+};
 
 function callPendingCbs (c) {
   /* istanbul ignore if */
@@ -7998,7 +8047,7 @@ function applyTranslation (c) {
 var platformComponents = {
   Transition: Transition,
   TransitionGroup: TransitionGroup
-}
+};
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index e48a727a319..8b95e256ab8 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,4565 +1,4627 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-	typeof define === 'function' && define.amd ? define(factory) :
-	(global.Vue = factory());
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global.Vue = factory());
 }(this, (function () { 'use strict';
 
-/*  */
+  /*  */
 
-var emptyObject = Object.freeze({});
+  var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value e.g. [object Object]
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
+  // These helpers produce better VM code in JS engines due to their
+  // explicitness and function inlining.
+  function isUndef (v) {
+    return v === undefined || v === null
+  }
 
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert a input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
+  function isDef (v) {
+    return v !== undefined && v !== null
+  }
 
-/**
- * Check if a attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+  function isTrue (v) {
+    return v === true
+  }
 
-/**
- * Remove an item from an array
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
+  function isFalse (v) {
+    return v === false
   }
-}
 
-/**
- * Check whether the object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
+  /**
+   * Check if value is primitive.
+   */
+  function isPrimitive (value) {
+    return (
+      typeof value === 'string' ||
+      typeof value === 'number' ||
+      // $flow-disable-line
+      typeof value === 'symbol' ||
+      typeof value === 'boolean'
+    )
+  }
 
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
+  /**
+   * Quick object check - this is primarily used to tell
+   * Objects from primitive values when we know the value
+   * is a JSON-compliant type.
+   */
+  function isObject (obj) {
+    return obj !== null && typeof obj === 'object'
+  }
 
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
+  /**
+   * Get the raw type string of a value, e.g., [object Object].
+   */
+  var _toString = Object.prototype.toString;
 
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
- */
+  function toRawType (value) {
+    return _toString.call(value).slice(8, -1)
+  }
 
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
+  /**
+   * Strict object type check. Only returns true
+   * for plain JavaScript objects.
+   */
+  function isPlainObject (obj) {
+    return _toString.call(obj) === '[object Object]'
   }
 
-  boundFn._length = fn.length;
-  return boundFn
-}
+  function isRegExp (v) {
+    return _toString.call(v) === '[object RegExp]'
+  }
 
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
+  /**
+   * Check if val is a valid array index.
+   */
+  function isValidArrayIndex (val) {
+    var n = parseFloat(String(val));
+    return n >= 0 && Math.floor(n) === n && isFinite(val)
+  }
 
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
+  /**
+   * Convert a value to a string that is actually rendered.
+   */
+  function toString (val) {
+    return val == null
+      ? ''
+      : typeof val === 'object'
+        ? JSON.stringify(val, null, 2)
+        : String(val)
+  }
 
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
+  /**
+   * Convert an input value to a number for persistence.
+   * If the conversion fails, return original string.
+   */
+  function toNumber (val) {
+    var n = parseFloat(val);
+    return isNaN(n) ? val : n
   }
-  return to
-}
 
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
+  /**
+   * Make a map and return a function for checking if a key
+   * is in that map.
+   */
+  function makeMap (
+    str,
+    expectsLowerCase
+  ) {
+    var map = Object.create(null);
+    var list = str.split(',');
+    for (var i = 0; i < list.length; i++) {
+      map[list[i]] = true;
     }
+    return expectsLowerCase
+      ? function (val) { return map[val.toLowerCase()]; }
+      : function (val) { return map[val]; }
   }
-  return res
-}
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
-
-/**
- * Return same value
- */
-var identity = function (_) { return _; };
 
-/**
- * Generate a static keys string from compiler modules.
- */
+  /**
+   * Check if a tag is a built-in tag.
+   */
+  var isBuiltInTag = makeMap('slot,component', true);
 
+  /**
+   * Check if an attribute is a reserved attribute.
+   */
+  var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
+  /**
+   * Remove an item from an array.
+   */
+  function remove (arr, item) {
+    if (arr.length) {
+      var index = arr.indexOf(item);
+      if (index > -1) {
+        return arr.splice(index, 1)
       }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
     }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
   }
-}
 
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
+  /**
+   * Check whether an object has the property.
+   */
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
+  function hasOwn (obj, key) {
+    return hasOwnProperty.call(obj, key)
+  }
+
+  /**
+   * Create a cached version of a pure function.
+   */
+  function cached (fn) {
+    var cache = Object.create(null);
+    return (function cachedFn (str) {
+      var hit = cache[str];
+      return hit || (cache[str] = fn(str))
+    })
   }
-  return -1
-}
 
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-var config = ({
   /**
-   * Option merge strategies (used in core/util/options)
+   * Camelize a hyphen-delimited string.
    */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
+  var camelizeRE = /-(\w)/g;
+  var camelize = cached(function (str) {
+    return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+  });
 
   /**
-   * Whether to suppress warnings.
+   * Capitalize a string.
    */
-  silent: false,
+  var capitalize = cached(function (str) {
+    return str.charAt(0).toUpperCase() + str.slice(1)
+  });
 
   /**
-   * Show production mode tip message on boot?
+   * Hyphenate a camelCase string.
    */
-  productionTip: "development" !== 'production',
+  var hyphenateRE = /\B([A-Z])/g;
+  var hyphenate = cached(function (str) {
+    return str.replace(hyphenateRE, '-$1').toLowerCase()
+  });
 
   /**
-   * Whether to enable devtools
+   * Simple bind polyfill for environments that do not support it,
+   * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+   * since native bind is now performant enough in most browsers.
+   * But removing it would mean breaking code that was able to run in
+   * PhantomJS 1.x, so this must be kept for backward compatibility.
    */
-  devtools: "development" !== 'production',
+
+  /* istanbul ignore next */
+  function polyfillBind (fn, ctx) {
+    function boundFn (a) {
+      var l = arguments.length;
+      return l
+        ? l > 1
+          ? fn.apply(ctx, arguments)
+          : fn.call(ctx, a)
+        : fn.call(ctx)
+    }
+
+    boundFn._length = fn.length;
+    return boundFn
+  }
+
+  function nativeBind (fn, ctx) {
+    return fn.bind(ctx)
+  }
+
+  var bind = Function.prototype.bind
+    ? nativeBind
+    : polyfillBind;
 
   /**
-   * Whether to record perf
+   * Convert an Array-like object to a real Array.
    */
-  performance: false,
+  function toArray (list, start) {
+    start = start || 0;
+    var i = list.length - start;
+    var ret = new Array(i);
+    while (i--) {
+      ret[i] = list[i + start];
+    }
+    return ret
+  }
 
   /**
-   * Error handler for watcher errors
+   * Mix properties into target object.
    */
-  errorHandler: null,
+  function extend (to, _from) {
+    for (var key in _from) {
+      to[key] = _from[key];
+    }
+    return to
+  }
 
   /**
-   * Warn handler for watcher warns
+   * Merge an Array of Objects into a single Object.
    */
-  warnHandler: null,
+  function toObject (arr) {
+    var res = {};
+    for (var i = 0; i < arr.length; i++) {
+      if (arr[i]) {
+        extend(res, arr[i]);
+      }
+    }
+    return res
+  }
+
+  /* eslint-disable no-unused-vars */
 
   /**
-   * Ignore certain custom elements
+   * Perform no operation.
+   * Stubbing args to make Flow happy without leaving useless transpiled code
+   * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
    */
-  ignoredElements: [],
+  function noop (a, b, c) {}
 
   /**
-   * Custom user key aliases for v-on
+   * Always return false.
    */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
+  var no = function (a, b, c) { return false; };
+
+  /* eslint-enable no-unused-vars */
 
   /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
+   * Return the same value.
    */
-  isReservedTag: no,
+  var identity = function (_) { return _; };
 
   /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
+   * Check if two values are loosely equal - that is,
+   * if they are plain objects, do they have the same shape?
    */
-  isReservedAttr: no,
+  function looseEqual (a, b) {
+    if (a === b) { return true }
+    var isObjectA = isObject(a);
+    var isObjectB = isObject(b);
+    if (isObjectA && isObjectB) {
+      try {
+        var isArrayA = Array.isArray(a);
+        var isArrayB = Array.isArray(b);
+        if (isArrayA && isArrayB) {
+          return a.length === b.length && a.every(function (e, i) {
+            return looseEqual(e, b[i])
+          })
+        } else if (a instanceof Date && b instanceof Date) {
+          return a.getTime() === b.getTime()
+        } else if (!isArrayA && !isArrayB) {
+          var keysA = Object.keys(a);
+          var keysB = Object.keys(b);
+          return keysA.length === keysB.length && keysA.every(function (key) {
+            return looseEqual(a[key], b[key])
+          })
+        } else {
+          /* istanbul ignore next */
+          return false
+        }
+      } catch (e) {
+        /* istanbul ignore next */
+        return false
+      }
+    } else if (!isObjectA && !isObjectB) {
+      return String(a) === String(b)
+    } else {
+      return false
+    }
+  }
 
   /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
+   * Return the first index at which a loosely equal value can be
+   * found in the array (if value is a plain object, the array must
+   * contain an object of the same shape), or -1 if it is not present.
    */
-  isUnknownElement: no,
+  function looseIndexOf (arr, val) {
+    for (var i = 0; i < arr.length; i++) {
+      if (looseEqual(arr[i], val)) { return i }
+    }
+    return -1
+  }
 
   /**
-   * Get the namespace of an element
+   * Ensure a function is called only once.
    */
-  getTagNamespace: noop,
+  function once (fn) {
+    var called = false;
+    return function () {
+      if (!called) {
+        called = true;
+        fn.apply(this, arguments);
+      }
+    }
+  }
+
+  var SSR_ATTR = 'data-server-rendered';
+
+  var ASSET_TYPES = [
+    'component',
+    'directive',
+    'filter'
+  ];
+
+  var LIFECYCLE_HOOKS = [
+    'beforeCreate',
+    'created',
+    'beforeMount',
+    'mounted',
+    'beforeUpdate',
+    'updated',
+    'beforeDestroy',
+    'destroyed',
+    'activated',
+    'deactivated',
+    'errorCaptured'
+  ];
+
+  /*  */
+
+
+
+  var config = ({
+    /**
+     * Option merge strategies (used in core/util/options)
+     */
+    // $flow-disable-line
+    optionMergeStrategies: Object.create(null),
+
+    /**
+     * Whether to suppress warnings.
+     */
+    silent: false,
+
+    /**
+     * Show production mode tip message on boot?
+     */
+    productionTip: "development" !== 'production',
+
+    /**
+     * Whether to enable devtools
+     */
+    devtools: "development" !== 'production',
+
+    /**
+     * Whether to record perf
+     */
+    performance: false,
+
+    /**
+     * Error handler for watcher errors
+     */
+    errorHandler: null,
+
+    /**
+     * Warn handler for watcher warns
+     */
+    warnHandler: null,
+
+    /**
+     * Ignore certain custom elements
+     */
+    ignoredElements: [],
+
+    /**
+     * Custom user key aliases for v-on
+     */
+    // $flow-disable-line
+    keyCodes: Object.create(null),
+
+    /**
+     * Check if a tag is reserved so that it cannot be registered as a
+     * component. This is platform-dependent and may be overwritten.
+     */
+    isReservedTag: no,
+
+    /**
+     * Check if an attribute is reserved so that it cannot be used as a component
+     * prop. This is platform-dependent and may be overwritten.
+     */
+    isReservedAttr: no,
+
+    /**
+     * Check if a tag is an unknown element.
+     * Platform-dependent.
+     */
+    isUnknownElement: no,
+
+    /**
+     * Get the namespace of an element
+     */
+    getTagNamespace: noop,
+
+    /**
+     * Parse the real tag name for the specific platform.
+     */
+    parsePlatformTagName: identity,
+
+    /**
+     * Check if an attribute must be bound using property, e.g. value
+     * Platform-dependent.
+     */
+    mustUseProp: no,
+
+    /**
+     * Perform updates asynchronously. Intended to be used by Vue Test Utils
+     * This will significantly reduce performance if set to false.
+     */
+    async: true,
+
+    /**
+     * Exposed for legacy reasons
+     */
+    _lifecycleHooks: LIFECYCLE_HOOKS
+  });
+
+  /*  */
 
   /**
-   * Parse the real tag name for the specific platform.
+   * Check if a string starts with $ or _
    */
-  parsePlatformTagName: identity,
+  function isReserved (str) {
+    var c = (str + '').charCodeAt(0);
+    return c === 0x24 || c === 0x5F
+  }
 
   /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
+   * Define a property.
    */
-  mustUseProp: no,
+  function def (obj, key, val, enumerable) {
+    Object.defineProperty(obj, key, {
+      value: val,
+      enumerable: !!enumerable,
+      writable: true,
+      configurable: true
+    });
+  }
 
   /**
-   * Exposed for legacy reasons
+   * Parse simple path.
    */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-})
+  var bailRE = /[^\w.$]/;
+  function parsePath (path) {
+    if (bailRE.test(path)) {
+      return
+    }
+    var segments = path.split('.');
+    return function (obj) {
+      for (var i = 0; i < segments.length; i++) {
+        if (!obj) { return }
+        obj = obj[segments[i]];
+      }
+      return obj
+    }
+  }
 
-/*  */
+  /*  */
 
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
+  // can we use __proto__?
+  var hasProto = '__proto__' in {};
 
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
+  // Browser environment sniffing
+  var inBrowser = typeof window !== 'undefined';
+  var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+  var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+  var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+  var isIE = UA && /msie|trident/.test(UA);
+  var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+  var isEdge = UA && UA.indexOf('edge/') > 0;
+  var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+  var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+  var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
+  // Firefox has a "watch" function on Object.prototype...
+  var nativeWatch = ({}).watch;
+
+  var supportsPassive = false;
+  if (inBrowser) {
+    try {
+      var opts = {};
+      Object.defineProperty(opts, 'passive', ({
+        get: function get () {
+          /* istanbul ignore next */
+          supportsPassive = true;
+        }
+      })); // https://github.com/facebook/flow/issues/285
+      window.addEventListener('test-passive', null, opts);
+    } catch (e) {}
+  }
+
+  // this needs to be lazy-evaled because vue may be required before
+  // vue-server-renderer can set VUE_ENV
+  var _isServer;
+  var isServerRendering = function () {
+    if (_isServer === undefined) {
+      /* istanbul ignore if */
+      if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+        // detect presence of vue-server-renderer and avoid
+        // Webpack shimming the process
+        _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+      } else {
+        _isServer = false;
+      }
     }
+    return _isServer
+  };
+
+  // detect devtools
+  var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+  /* istanbul ignore next */
+  function isNative (Ctor) {
+    return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+  }
+
+  var hasSymbol =
+    typeof Symbol !== 'undefined' && isNative(Symbol) &&
+    typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+  var _Set;
+  /* istanbul ignore if */ // $flow-disable-line
+  if (typeof Set !== 'undefined' && isNative(Set)) {
+    // use native Set when available.
+    _Set = Set;
+  } else {
+    // a non-standard Set polyfill that only works with primitive keys.
+    _Set = /*@__PURE__*/(function () {
+      function Set () {
+        this.set = Object.create(null);
+      }
+      Set.prototype.has = function has (key) {
+        return this.set[key] === true
+      };
+      Set.prototype.add = function add (key) {
+        this.set[key] = true;
+      };
+      Set.prototype.clear = function clear () {
+        this.set = Object.create(null);
+      };
+
+      return Set;
+    }());
   }
-  return _isServer
-};
 
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+  /*  */
 
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
+  var warn = noop;
+  var tip = noop;
+  var generateComponentTrace = (noop); // work around flow check
+  var formatComponentName = (noop);
 
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+  {
+    var hasConsole = typeof console !== 'undefined';
+    var classifyRE = /(?:^|[-_])(\w)/g;
+    var classify = function (str) { return str
+      .replace(classifyRE, function (c) { return c.toUpperCase(); })
+      .replace(/[-_]/g, ''); };
 
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
+    warn = function (msg, vm) {
+      var trace = vm ? generateComponentTrace(vm) : '';
+
+      if (config.warnHandler) {
+        config.warnHandler.call(null, msg, vm, trace);
+      } else if (hasConsole && (!config.silent)) {
+        console.error(("[Vue warn]: " + msg + trace));
+      }
     };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
+
+    tip = function (msg, vm) {
+      if (hasConsole && (!config.silent)) {
+        console.warn("[Vue tip]: " + msg + (
+          vm ? generateComponentTrace(vm) : ''
+        ));
+      }
     };
 
-    return Set;
-  }());
-}
+    formatComponentName = function (vm, includeFile) {
+      if (vm.$root === vm) {
+        return '<Root>'
+      }
+      var options = typeof vm === 'function' && vm.cid != null
+        ? vm.options
+        : vm._isVue
+          ? vm.$options || vm.constructor.options
+          : vm || {};
+      var name = options.name || options._componentTag;
+      var file = options.__file;
+      if (!name && file) {
+        var match = file.match(/([^/\\]+)\.vue$/);
+        name = match && match[1];
+      }
+
+      return (
+        (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+        (file && includeFile !== false ? (" at " + file) : '')
+      )
+    };
 
-/*  */
+    var repeat = function (str, n) {
+      var res = '';
+      while (n) {
+        if (n % 2 === 1) { res += str; }
+        if (n > 1) { str += str; }
+        n >>= 1;
+      }
+      return res
+    };
 
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
+    generateComponentTrace = function (vm) {
+      if (vm._isVue && vm.$parent) {
+        var tree = [];
+        var currentRecursiveSequence = 0;
+        while (vm) {
+          if (tree.length > 0) {
+            var last = tree[tree.length - 1];
+            if (last.constructor === vm.constructor) {
+              currentRecursiveSequence++;
+              vm = vm.$parent;
+              continue
+            } else if (currentRecursiveSequence > 0) {
+              tree[tree.length - 1] = [last, currentRecursiveSequence];
+              currentRecursiveSequence = 0;
+            }
+          }
+          tree.push(vm);
+          vm = vm.$parent;
+        }
+        return '\n\nfound in\n\n' + tree
+          .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+              ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+              : formatComponentName(vm))); })
+          .join('\n')
+      } else {
+        return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+      }
+    };
+  }
 
-{
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
+  /*  */
 
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
+  var uid = 0;
 
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
+  /**
+   * A dep is an observable that can have multiple
+   * directives subscribing to it.
+   */
+  var Dep = function Dep () {
+    this.id = uid++;
+    this.subs = [];
   };
 
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
+  Dep.prototype.addSub = function addSub (sub) {
+    this.subs.push(sub);
   };
 
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
+  Dep.prototype.removeSub = function removeSub (sub) {
+    remove(this.subs, sub);
   };
 
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
+  Dep.prototype.depend = function depend () {
+    if (Dep.target) {
+      Dep.target.addDep(this);
     }
-    return res
   };
 
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+  Dep.prototype.notify = function notify () {
+    // stabilize the subscriber list first
+    var subs = this.subs.slice();
+    if (!config.async) {
+      // subs aren't sorted in scheduler if not running async
+      // we need to sort them now to make sure they fire in correct
+      // order
+      subs.sort(function (a, b) { return a.id - b.id; });
+    }
+    for (var i = 0, l = subs.length; i < l; i++) {
+      subs[i].update();
     }
   };
-}
 
-/*  */
+  // the current target watcher being evaluated.
+  // this is globally unique because there could be only one
+  // watcher being evaluated at any time.
+  Dep.target = null;
+  var targetStack = [];
 
+  function pushTarget (target) {
+    targetStack.push(target);
+    Dep.target = target;
+  }
 
-var uid = 0;
+  function popTarget () {
+    targetStack.pop();
+    Dep.target = targetStack[targetStack.length - 1];
+  }
 
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
+  /*  */
 
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
+  var VNode = function VNode (
+    tag,
+    data,
+    children,
+    text,
+    elm,
+    context,
+    componentOptions,
+    asyncFactory
+  ) {
+    this.tag = tag;
+    this.data = data;
+    this.children = children;
+    this.text = text;
+    this.elm = elm;
+    this.ns = undefined;
+    this.context = context;
+    this.fnContext = undefined;
+    this.fnOptions = undefined;
+    this.fnScopeId = undefined;
+    this.key = data && data.key;
+    this.componentOptions = componentOptions;
+    this.componentInstance = undefined;
+    this.parent = undefined;
+    this.raw = false;
+    this.isStatic = false;
+    this.isRootInsert = true;
+    this.isComment = false;
+    this.isCloned = false;
+    this.isOnce = false;
+    this.asyncFactory = asyncFactory;
+    this.asyncMeta = undefined;
+    this.isAsyncPlaceholder = false;
+  };
 
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
+  var prototypeAccessors = { child: { configurable: true } };
 
-/*  */
+  // DEPRECATED: alias for componentInstance for backwards compat.
+  /* istanbul ignore next */
+  prototypeAccessors.child.get = function () {
+    return this.componentInstance
+  };
 
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+  Object.defineProperties( VNode.prototype, prototypeAccessors );
 
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
+  var createEmptyVNode = function (text) {
+    if ( text === void 0 ) text = '';
 
-function toggleObserving (value) {
-  shouldObserve = value;
-}
+    var node = new VNode();
+    node.text = text;
+    node.isComment = true;
+    return node
+  };
 
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
+  function createTextVNode (val) {
+    return new VNode(undefined, undefined, undefined, String(val))
+  }
+
+  // optimized shallow clone
+  // used for static nodes and slot nodes because they may be reused across
+  // multiple renders, cloning them avoids errors when DOM manipulations rely
+  // on their elm reference.
+  function cloneVNode (vnode) {
+    var cloned = new VNode(
+      vnode.tag,
+      vnode.data,
+      // #7975
+      // clone children array to avoid mutating original in case of cloning
+      // a child.
+      vnode.children && vnode.children.slice(),
+      vnode.text,
+      vnode.elm,
+      vnode.context,
+      vnode.componentOptions,
+      vnode.asyncFactory
+    );
+    cloned.ns = vnode.ns;
+    cloned.isStatic = vnode.isStatic;
+    cloned.key = vnode.key;
+    cloned.isComment = vnode.isComment;
+    cloned.fnContext = vnode.fnContext;
+    cloned.fnOptions = vnode.fnOptions;
+    cloned.fnScopeId = vnode.fnScopeId;
+    cloned.asyncMeta = vnode.asyncMeta;
+    cloned.isCloned = true;
+    return cloned
+  }
+
+  /*
+   * not type checking this file because flow doesn't play well with
+   * dynamically accessing methods on Array prototype
+   */
 
-/**
- * Walk through each property and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
-  }
-};
+  var arrayProto = Array.prototype;
+  var arrayMethods = Object.create(arrayProto);
 
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
+  var methodsToPatch = [
+    'push',
+    'pop',
+    'shift',
+    'unshift',
+    'splice',
+    'sort',
+    'reverse'
+  ];
 
-// helpers
+  /**
+   * Intercept mutating methods and emit events
+   */
+  methodsToPatch.forEach(function (method) {
+    // cache original method
+    var original = arrayProto[method];
+    def(arrayMethods, method, function mutator () {
+      var args = [], len = arguments.length;
+      while ( len-- ) args[ len ] = arguments[ len ];
+
+      var result = original.apply(this, args);
+      var ob = this.__ob__;
+      var inserted;
+      switch (method) {
+        case 'push':
+        case 'unshift':
+          inserted = args;
+          break
+        case 'splice':
+          inserted = args.slice(2);
+          break
+      }
+      if (inserted) { ob.observeArray(inserted); }
+      // notify change
+      ob.dep.notify();
+      return result
+    });
+  });
 
-/**
- * Augment an target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src, keys) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment an target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
+  /*  */
 
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
+  var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
+  /**
+   * In some cases we may want to disable observation inside a component's
+   * update computation.
+   */
+  var shouldObserve = true;
 
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
+  function toggleObserving (value) {
+    shouldObserve = value;
   }
 
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if ("development" !== 'production' && customSetter) {
-        customSetter();
-      }
-      if (setter) {
-        setter.call(obj, newVal);
+  /**
+   * Observer class that is attached to each observed
+   * object. Once attached, the observer converts the target
+   * object's property keys into getter/setters that
+   * collect dependencies and dispatch updates.
+   */
+  var Observer = function Observer (value) {
+    this.value = value;
+    this.dep = new Dep();
+    this.vmCount = 0;
+    def(value, '__ob__', this);
+    if (Array.isArray(value)) {
+      if (hasProto) {
+        protoAugment(value, arrayMethods);
       } else {
-        val = newVal;
+        copyAugment(value, arrayMethods, arrayKeys);
       }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
+      this.observeArray(value);
+    } else {
+      this.walk(value);
     }
-  });
-}
+  };
 
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if ("development" !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  /**
+   * Walk through all properties and convert them into
+   * getter/setters. This method should only be called when
+   * value type is Object.
+   */
+  Observer.prototype.walk = function walk (obj) {
+    var keys = Object.keys(obj);
+    for (var i = 0; i < keys.length; i++) {
+      defineReactive$$1(obj, keys[i]);
+    }
+  };
+
+  /**
+   * Observe a list of Array items.
+   */
+  Observer.prototype.observeArray = function observeArray (items) {
+    for (var i = 0, l = items.length; i < l; i++) {
+      observe(items[i]);
+    }
+  };
+
+  // helpers
+
+  /**
+   * Augment a target Object or Array by intercepting
+   * the prototype chain using __proto__
+   */
+  function protoAugment (target, src) {
+    /* eslint-disable no-proto */
+    target.__proto__ = src;
+    /* eslint-enable no-proto */
   }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
+
+  /**
+   * Augment a target Object or Array by defining
+   * hidden properties.
+   */
+  /* istanbul ignore next */
+  function copyAugment (target, src, keys) {
+    for (var i = 0, l = keys.length; i < l; i++) {
+      var key = keys[i];
+      def(target, key, src[key]);
+    }
   }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
+
+  /**
+   * Attempt to create an observer instance for a value,
+   * returns the new observer if successfully observed,
+   * or the existing observer if the value already has one.
+   */
+  function observe (value, asRootData) {
+    if (!isObject(value) || value instanceof VNode) {
+      return
+    }
+    var ob;
+    if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+      ob = value.__ob__;
+    } else if (
+      shouldObserve &&
+      !isServerRendering() &&
+      (Array.isArray(value) || isPlainObject(value)) &&
+      Object.isExtensible(value) &&
+      !value._isVue
+    ) {
+      ob = new Observer(value);
+    }
+    if (asRootData && ob) {
+      ob.vmCount++;
+    }
+    return ob
   }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
+
+  /**
+   * Define a reactive property on an Object.
+   */
+  function defineReactive$$1 (
+    obj,
+    key,
+    val,
+    customSetter,
+    shallow
+  ) {
+    var dep = new Dep();
+
+    var property = Object.getOwnPropertyDescriptor(obj, key);
+    if (property && property.configurable === false) {
+      return
+    }
+
+    // cater for pre-defined getter/setters
+    var getter = property && property.get;
+    var setter = property && property.set;
+    if ((!getter || setter) && arguments.length === 2) {
+      val = obj[key];
+    }
+
+    var childOb = !shallow && observe(val);
+    Object.defineProperty(obj, key, {
+      enumerable: true,
+      configurable: true,
+      get: function reactiveGetter () {
+        var value = getter ? getter.call(obj) : val;
+        if (Dep.target) {
+          dep.depend();
+          if (childOb) {
+            childOb.dep.depend();
+            if (Array.isArray(value)) {
+              dependArray(value);
+            }
+          }
+        }
+        return value
+      },
+      set: function reactiveSetter (newVal) {
+        var value = getter ? getter.call(obj) : val;
+        /* eslint-disable no-self-compare */
+        if (newVal === value || (newVal !== newVal && value !== value)) {
+          return
+        }
+        /* eslint-enable no-self-compare */
+        if (customSetter) {
+          customSetter();
+        }
+        // #7981: for accessor properties without setter
+        if (getter && !setter) { return }
+        if (setter) {
+          setter.call(obj, newVal);
+        } else {
+          val = newVal;
+        }
+        childOb = !shallow && observe(newVal);
+        dep.notify();
+      }
+    });
   }
-  if (!ob) {
-    target[key] = val;
+
+  /**
+   * Set a property on an object. Adds the new property and
+   * triggers change notification if the property doesn't
+   * already exist.
+   */
+  function set (target, key, val) {
+    if (isUndef(target) || isPrimitive(target)
+    ) {
+      warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+    }
+    if (Array.isArray(target) && isValidArrayIndex(key)) {
+      target.length = Math.max(target.length, key);
+      target.splice(key, 1, val);
+      return val
+    }
+    if (key in target && !(key in Object.prototype)) {
+      target[key] = val;
+      return val
+    }
+    var ob = (target).__ob__;
+    if (target._isVue || (ob && ob.vmCount)) {
+      warn(
+        'Avoid adding reactive properties to a Vue instance or its root $data ' +
+        'at runtime - declare it upfront in the data option.'
+      );
+      return val
+    }
+    if (!ob) {
+      target[key] = val;
+      return val
+    }
+    defineReactive$$1(ob.value, key, val);
+    ob.dep.notify();
     return val
   }
-  defineReactive(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
 
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if ("development" !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+  /**
+   * Delete a property and trigger change if necessary.
+   */
+  function del (target, key) {
+    if (isUndef(target) || isPrimitive(target)
+    ) {
+      warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+    }
+    if (Array.isArray(target) && isValidArrayIndex(key)) {
+      target.splice(key, 1);
+      return
+    }
+    var ob = (target).__ob__;
+    if (target._isVue || (ob && ob.vmCount)) {
+      warn(
+        'Avoid deleting properties on a Vue instance or its root $data ' +
+        '- just set it to null.'
+      );
+      return
+    }
+    if (!hasOwn(target, key)) {
+      return
+    }
+    delete target[key];
+    if (!ob) {
+      return
+    }
+    ob.dep.notify();
   }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
+
+  /**
+   * Collect dependencies on array elements when the array is touched, since
+   * we cannot intercept array element access like property getters.
+   */
+  function dependArray (value) {
+    for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+      e = value[i];
+      e && e.__ob__ && e.__ob__.dep.depend();
+      if (Array.isArray(e)) {
+        dependArray(e);
+      }
+    }
   }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
+
+  /*  */
+
+  /**
+   * Option overwriting strategies are functions that handle
+   * how to merge a parent option value and a child option
+   * value into the final value.
+   */
+  var strats = config.optionMergeStrategies;
+
+  /**
+   * Options with restrictions
+   */
+  {
+    strats.el = strats.propsData = function (parent, child, vm, key) {
+      if (!vm) {
+        warn(
+          "option \"" + key + "\" can only be used during instance " +
+          'creation with the `new` keyword.'
+        );
+      }
+      return defaultStrat(parent, child)
+    };
   }
-  if (!hasOwn(target, key)) {
-    return
+
+  /**
+   * Helper that recursively merges two data objects together.
+   */
+  function mergeData (to, from) {
+    if (!from) { return to }
+    var key, toVal, fromVal;
+    var keys = Object.keys(from);
+    for (var i = 0; i < keys.length; i++) {
+      key = keys[i];
+      toVal = to[key];
+      fromVal = from[key];
+      if (!hasOwn(to, key)) {
+        set(to, key, fromVal);
+      } else if (
+        toVal !== fromVal &&
+        isPlainObject(toVal) &&
+        isPlainObject(fromVal)
+      ) {
+        mergeData(toVal, fromVal);
+      }
+    }
+    return to
   }
-  delete target[key];
-  if (!ob) {
-    return
+
+  /**
+   * Data
+   */
+  function mergeDataOrFn (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      // in a Vue.extend merge, both should be functions
+      if (!childVal) {
+        return parentVal
+      }
+      if (!parentVal) {
+        return childVal
+      }
+      // when parentVal & childVal are both present,
+      // we need to return a function that returns the
+      // merged result of both functions... no need to
+      // check if parentVal is a function here because
+      // it has to be a function to pass previous merges.
+      return function mergedDataFn () {
+        return mergeData(
+          typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+          typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+        )
+      }
+    } else {
+      return function mergedInstanceDataFn () {
+        // instance merge
+        var instanceData = typeof childVal === 'function'
+          ? childVal.call(vm, vm)
+          : childVal;
+        var defaultData = typeof parentVal === 'function'
+          ? parentVal.call(vm, vm)
+          : parentVal;
+        if (instanceData) {
+          return mergeData(instanceData, defaultData)
+        } else {
+          return defaultData
+        }
+      }
+    }
   }
-  ob.dep.notify();
-}
 
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
+  strats.data = function (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      if (childVal && typeof childVal !== 'function') {
+        warn(
+          'The "data" option should be a function ' +
+          'that returns a per-instance value in component ' +
+          'definitions.',
+          vm
+        );
+
+        return parentVal
+      }
+      return mergeDataOrFn(parentVal, childVal)
+    }
+
+    return mergeDataOrFn(parentVal, childVal, vm)
+  };
+
+  /**
+   * Hooks and props are merged as arrays.
+   */
+  function mergeHook (
+    parentVal,
+    childVal
+  ) {
+    return childVal
+      ? parentVal
+        ? parentVal.concat(childVal)
+        : Array.isArray(childVal)
+          ? childVal
+          : [childVal]
+      : parentVal
+  }
+
+  LIFECYCLE_HOOKS.forEach(function (hook) {
+    strats[hook] = mergeHook;
+  });
+
+  /**
+   * Assets
+   *
+   * When a vm is present (instance creation), we need to do
+   * a three-way merge between constructor options, instance
+   * options and parent options.
+   */
+  function mergeAssets (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    var res = Object.create(parentVal || null);
+    if (childVal) {
+      assertObjectType(key, childVal, vm);
+      return extend(res, childVal)
+    } else {
+      return res
     }
   }
-}
 
-/*  */
+  ASSET_TYPES.forEach(function (type) {
+    strats[type + 's'] = mergeAssets;
+  });
 
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
+  /**
+   * Watchers.
+   *
+   * Watchers hashes should not overwrite one
+   * another, so we merge them as arrays.
+   */
+  strats.watch = function (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    // work around Firefox's Object.prototype.watch...
+    if (parentVal === nativeWatch) { parentVal = undefined; }
+    if (childVal === nativeWatch) { childVal = undefined; }
+    /* istanbul ignore if */
+    if (!childVal) { return Object.create(parentVal || null) }
+    {
+      assertObjectType(key, childVal, vm);
+    }
+    if (!parentVal) { return childVal }
+    var ret = {};
+    extend(ret, parentVal);
+    for (var key$1 in childVal) {
+      var parent = ret[key$1];
+      var child = childVal[key$1];
+      if (parent && !Array.isArray(parent)) {
+        parent = [parent];
+      }
+      ret[key$1] = parent
+        ? parent.concat(child)
+        : Array.isArray(child) ? child : [child];
+    }
+    return ret
+  };
 
-/**
- * Options with restrictions
- */
-{
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
+  /**
+   * Other object hashes.
+   */
+  strats.props =
+  strats.methods =
+  strats.inject =
+  strats.computed = function (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    if (childVal && "development" !== 'production') {
+      assertObjectType(key, childVal, vm);
+    }
+    if (!parentVal) { return childVal }
+    var ret = Object.create(null);
+    extend(ret, parentVal);
+    if (childVal) { extend(ret, childVal); }
+    return ret
+  };
+  strats.provide = mergeDataOrFn;
+
+  /**
+   * Default strategy.
+   */
+  var defaultStrat = function (parentVal, childVal) {
+    return childVal === undefined
+      ? parentVal
+      : childVal
+  };
+
+  /**
+   * Validate component names
+   */
+  function checkComponents (options) {
+    for (var key in options.components) {
+      validateComponentName(key);
+    }
+  }
+
+  function validateComponentName (name) {
+    if (!/^[a-zA-Z][\w-]*$/.test(name)) {
       warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
+        'Invalid component name: "' + name + '". Component names ' +
+        'can only contain alphanumeric characters and the hyphen, ' +
+        'and must start with a letter.'
       );
     }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
+    if (isBuiltInTag(name) || config.isReservedTag(name)) {
+      warn(
+        'Do not use built-in or reserved HTML elements as component ' +
+        'id: ' + name
+      );
     }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
+  }
+
+  /**
+   * Ensure all props option syntax are normalized into the
+   * Object-based format.
+   */
+  function normalizeProps (options, vm) {
+    var props = options.props;
+    if (!props) { return }
+    var res = {};
+    var i, val, name;
+    if (Array.isArray(props)) {
+      i = props.length;
+      while (i--) {
+        val = props[i];
+        if (typeof val === 'string') {
+          name = camelize(val);
+          res[name] = { type: null };
+        } else {
+          warn('props must be strings when using array syntax.');
+        }
       }
+    } else if (isPlainObject(props)) {
+      for (var key in props) {
+        val = props[key];
+        name = camelize(key);
+        res[name] = isPlainObject(val)
+          ? val
+          : { type: val };
+      }
+    } else {
+      warn(
+        "Invalid value for option \"props\": expected an Array or an Object, " +
+        "but got " + (toRawType(props)) + ".",
+        vm
+      );
     }
+    options.props = res;
   }
-}
 
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      "development" !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
+  /**
+   * Normalize all injections into Object-based format
+   */
+  function normalizeInject (options, vm) {
+    var inject = options.inject;
+    if (!inject) { return }
+    var normalized = options.inject = {};
+    if (Array.isArray(inject)) {
+      for (var i = 0; i < inject.length; i++) {
+        normalized[inject[i]] = { from: inject[i] };
+      }
+    } else if (isPlainObject(inject)) {
+      for (var key in inject) {
+        var val = inject[key];
+        normalized[key] = isPlainObject(val)
+          ? extend({ from: key }, val)
+          : { from: val };
+      }
+    } else {
+      warn(
+        "Invalid value for option \"inject\": expected an Array or an Object, " +
+        "but got " + (toRawType(inject)) + ".",
         vm
       );
-
-      return parentVal
     }
-    return mergeDataOrFn(parentVal, childVal)
   }
 
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
+  /**
+   * Normalize raw function directives into object format.
+   */
+  function normalizeDirectives (options) {
+    var dirs = options.directives;
+    if (dirs) {
+      for (var key in dirs) {
+        var def = dirs[key];
+        if (typeof def === 'function') {
+          dirs[key] = { bind: def, update: def };
+        }
+      }
+    }
+  }
 
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    "development" !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
+  function assertObjectType (name, value, vm) {
+    if (!isPlainObject(value)) {
+      warn(
+        "Invalid value for option \"" + name + "\": expected an Object, " +
+        "but got " + (toRawType(value)) + ".",
+        vm
+      );
+    }
   }
-}
 
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
+  /**
+   * Merge two option objects into a new one.
+   * Core utility used in both instantiation and inheritance.
+   */
+  function mergeOptions (
+    parent,
+    child,
+    vm
+  ) {
+    {
+      checkComponents(child);
+    }
 
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
+    if (typeof child === 'function') {
+      child = child.options;
+    }
+
+    normalizeProps(child, vm);
+    normalizeInject(child, vm);
+    normalizeDirectives(child);
+    
+    // Apply extends and mixins on the child options,
+    // but only if it is a raw options object that isn't
+    // the result of another mergeOptions call.
+    // Only merged options has the _base property.
+    if (!child._base) {
+      if (child.extends) {
+        parent = mergeOptions(parent, child.extends, vm);
+      }
+      if (child.mixins) {
+        for (var i = 0, l = child.mixins.length; i < l; i++) {
+          parent = mergeOptions(parent, child.mixins[i], vm);
+        }
+      }
+    }
+
+    var options = {};
+    var key;
+    for (key in parent) {
+      mergeField(key);
+    }
+    for (key in child) {
+      if (!hasOwn(parent, key)) {
+        mergeField(key);
+      }
+    }
+    function mergeField (key) {
+      var strat = strats[key] || defaultStrat;
+      options[key] = strat(parent[key], child[key], vm, key);
+    }
+    return options
   }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
+
+  /**
+   * Resolve an asset.
+   * This function is used because child instances need access
+   * to assets defined in its ancestor chain.
+   */
+  function resolveAsset (
+    options,
+    type,
+    id,
+    warnMissing
+  ) {
+    /* istanbul ignore if */
+    if (typeof id !== 'string') {
+      return
+    }
+    var assets = options[type];
+    // check local registration variations first
+    if (hasOwn(assets, id)) { return assets[id] }
+    var camelizedId = camelize(id);
+    if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+    var PascalCaseId = capitalize(camelizedId);
+    if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+    // fallback to prototype chain
+    var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+    if (warnMissing && !res) {
+      warn(
+        'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+        options
+      );
+    }
+    return res
   }
-}
 
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else {
-        warn('props must be strings when using array syntax.');
+  /*  */
+
+
+
+  function validateProp (
+    key,
+    propOptions,
+    propsData,
+    vm
+  ) {
+    var prop = propOptions[key];
+    var absent = !hasOwn(propsData, key);
+    var value = propsData[key];
+    // boolean casting
+    var booleanIndex = getTypeIndex(Boolean, prop.type);
+    if (booleanIndex > -1) {
+      if (absent && !hasOwn(prop, 'default')) {
+        value = false;
+      } else if (value === '' || value === hyphenate(key)) {
+        // only cast empty string / same name to boolean if
+        // boolean has higher priority
+        var stringIndex = getTypeIndex(String, prop.type);
+        if (stringIndex < 0 || booleanIndex < stringIndex) {
+          value = true;
+        }
       }
     }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
+    // check default value
+    if (value === undefined) {
+      value = getPropDefaultValue(vm, prop, key);
+      // since the default value is a fresh copy,
+      // make sure to observe it.
+      var prevShouldObserve = shouldObserve;
+      toggleObserving(true);
+      observe(value);
+      toggleObserving(prevShouldObserve);
     }
-  } else {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
+    {
+      assertProp(prop, key, value, vm, absent);
+    }
+    return value
   }
-  options.props = res;
-}
 
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
+  /**
+   * Get the default value of a prop.
+   */
+  function getPropDefaultValue (vm, prop, key) {
+    // no default, return undefined
+    if (!hasOwn(prop, 'default')) {
+      return undefined
+    }
+    var def = prop.default;
+    // warn against non-factory defaults for Object & Array
+    if (isObject(def)) {
+      warn(
+        'Invalid default value for prop "' + key + '": ' +
+        'Props with type Object/Array must use a factory function ' +
+        'to return the default value.',
+        vm
+      );
     }
-  } else {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
+    // the raw prop value was also undefined from previous render,
+    // return previous default value to avoid unnecessary watcher trigger
+    if (vm && vm.$options.propsData &&
+      vm.$options.propsData[key] === undefined &&
+      vm._props[key] !== undefined
+    ) {
+      return vm._props[key]
+    }
+    // call factory function for non-Function types
+    // a value is Function if its prototype is function even across different execution context
+    return typeof def === 'function' && getType(prop.type) !== 'Function'
+      ? def.call(vm)
+      : def
   }
-}
 
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
+  /**
+   * Assert whether a prop is valid.
+   */
+  function assertProp (
+    prop,
+    name,
+    value,
+    vm,
+    absent
+  ) {
+    if (prop.required && absent) {
+      warn(
+        'Missing required prop: "' + name + '"',
+        vm
+      );
+      return
+    }
+    if (value == null && !prop.required) {
+      return
+    }
+    var type = prop.type;
+    var valid = !type || type === true;
+    var expectedTypes = [];
+    if (type) {
+      if (!Array.isArray(type)) {
+        type = [type];
+      }
+      for (var i = 0; i < type.length && !valid; i++) {
+        var assertedType = assertType(value, type[i]);
+        expectedTypes.push(assertedType.expectedType || '');
+        valid = assertedType.valid;
       }
     }
-  }
-}
 
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
+    if (!valid) {
+      warn(
+        getInvalidTypeMessage(name, value, expectedTypes),
+        vm
+      );
+      return
+    }
+    var validator = prop.validator;
+    if (validator) {
+      if (!validator(value)) {
+        warn(
+          'Invalid prop: custom validator check failed for prop "' + name + '".',
+          vm
+        );
+      }
+    }
   }
-}
 
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  {
-    checkComponents(child);
+  var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+  function assertType (value, type) {
+    var valid;
+    var expectedType = getType(type);
+    if (simpleCheckRE.test(expectedType)) {
+      var t = typeof value;
+      valid = t === expectedType.toLowerCase();
+      // for primitive wrapper objects
+      if (!valid && t === 'object') {
+        valid = value instanceof type;
+      }
+    } else if (expectedType === 'Object') {
+      valid = isPlainObject(value);
+    } else if (expectedType === 'Array') {
+      valid = Array.isArray(value);
+    } else {
+      valid = value instanceof type;
+    }
+    return {
+      valid: valid,
+      expectedType: expectedType
+    }
   }
 
-  if (typeof child === 'function') {
-    child = child.options;
+  /**
+   * Use function string name to check built-in types,
+   * because a simple equality check will fail when running
+   * across different vms / iframes.
+   */
+  function getType (fn) {
+    var match = fn && fn.toString().match(/^\s*function (\w+)/);
+    return match ? match[1] : ''
   }
 
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
+  function isSameType (a, b) {
+    return getType(a) === getType(b)
   }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+
+  function getTypeIndex (type, expectedTypes) {
+    if (!Array.isArray(expectedTypes)) {
+      return isSameType(expectedTypes, type) ? 0 : -1
     }
-  }
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
+    for (var i = 0, len = expectedTypes.length; i < len; i++) {
+      if (isSameType(expectedTypes[i], type)) {
+        return i
+      }
     }
+    return -1
   }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
 
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if ("development" !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
+  function getInvalidTypeMessage (name, value, expectedTypes) {
+    var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', '));
+    var expectedType = expectedTypes[0];
+    var receivedType = toRawType(value);
+    var expectedValue = styleValue(value, expectedType);
+    var receivedValue = styleValue(value, receivedType);
+    // check if we need to specify expected value
+    if (expectedTypes.length === 1 &&
+        isExplicable(expectedType) &&
+        !isBoolean(expectedType, receivedType)) {
+      message += " with value " + expectedValue;
+    }
+    message += ", got " + receivedType + " ";
+    // check if we need to specify received value
+    if (isExplicable(receivedType)) {
+      message += "with value " + receivedValue + ".";
+    }
+    return message
   }
-  return res
-}
-
-/*  */
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
+
+  function styleValue (value, type) {
+    if (type === 'String') {
+      return ("\"" + value + "\"")
+    } else if (type === 'Number') {
+      return ("" + (Number(value)))
+    } else {
+      return ("" + value)
+    }
   }
-  {
-    assertProp(prop, key, value, vm, absent);
+
+  function isExplicable (value) {
+    var explicitTypes = ['string', 'number', 'boolean'];
+    return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
   }
-  return value
-}
 
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if ("development" !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
+  function isBoolean () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
   }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
+
+  /*  */
+
+  function handleError (err, vm, info) {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
+          }
+        }
+      }
+    }
+    globalHandleError(err, vm, info);
   }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
 
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-  if (!valid) {
-    warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
-      vm
-    );
-    return
+  function globalHandleError (err, vm, info) {
+    if (config.errorHandler) {
+      try {
+        return config.errorHandler.call(null, err, vm, info)
+      } catch (e) {
+        logError(e, null, 'config.errorHandler');
+      }
+    }
+    logError(err, vm, info);
   }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
+
+  function logError (err, vm, info) {
+    {
+      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+    }
+    /* istanbul ignore else */
+    if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+      console.error(err);
+    } else {
+      throw err
     }
   }
-}
 
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+  /*  */
 
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
+  var callbacks = [];
+  var pending = false;
+
+  function flushCallbacks () {
+    pending = false;
+    var copies = callbacks.slice(0);
+    callbacks.length = 0;
+    for (var i = 0; i < copies.length; i++) {
+      copies[i]();
     }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
   }
-}
 
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
+  // Here we have async deferring wrappers using both microtasks and (macro) tasks.
+  // In < 2.4 we used microtasks everywhere, but there are some scenarios where
+  // microtasks have too high a priority and fire in between supposedly
+  // sequential events (e.g. #4521, #6690) or even between bubbling of the same
+  // event (#6566). However, using (macro) tasks everywhere also has subtle problems
+  // when state is changed right before repaint (e.g. #6813, out-in transitions).
+  // Here we use microtask by default, but expose a way to force (macro) task when
+  // needed (e.g. in event handlers attached by v-on).
+  var microTimerFunc;
+  var macroTimerFunc;
+  var useMacroTask = false;
 
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
+  // Determine (macro) task defer implementation.
+  // Technically setImmediate should be the ideal choice, but it's only available
+  // in IE. The only polyfill that consistently queues the callback after all DOM
+  // events triggered in the same loop is by using MessageChannel.
+  /* istanbul ignore if */
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+    macroTimerFunc = function () {
+      setImmediate(flushCallbacks);
+    };
+  } else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
+  )) {
+    var channel = new MessageChannel();
+    var port = channel.port2;
+    channel.port1.onmessage = flushCallbacks;
+    macroTimerFunc = function () {
+      port.postMessage(1);
+    };
+  } else {
+    /* istanbul ignore next */
+    macroTimerFunc = function () {
+      setTimeout(flushCallbacks, 0);
+    };
   }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
+
+  // Determine microtask defer implementation.
+  /* istanbul ignore next, $flow-disable-line */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) {
+    var p = Promise.resolve();
+    microTimerFunc = function () {
+      p.then(flushCallbacks);
+      // in problematic UIWebViews, Promise.then doesn't completely break, but
+      // it can get stuck in a weird state where callbacks are pushed into the
+      // microtask queue but the queue isn't being flushed, until the browser
+      // needs to do some other work, e.g. handle a timer. Therefore we can
+      // "force" the microtask queue to be flushed by adding an empty timer.
+      if (isIOS) { setTimeout(noop); }
+    };
+  } else {
+    // fallback to macro
+    microTimerFunc = macroTimerFunc;
   }
-  return -1
-}
 
-/*  */
+  /**
+   * Wrap a function so that if any code inside triggers state change,
+   * the changes are queued using a (macro) task instead of a microtask.
+   */
+  function withMacroTask (fn) {
+    return fn._withTask || (fn._withTask = function () {
+      useMacroTask = true;
+      try {
+        return fn.apply(null, arguments)
+      } finally {
+        useMacroTask = false;    
+      }
+    })
+  }
 
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
+  function nextTick (cb, ctx) {
+    var _resolve;
+    callbacks.push(function () {
+      if (cb) {
+        try {
+          cb.call(ctx);
+        } catch (e) {
+          handleError(e, ctx, 'nextTick');
         }
+      } else if (_resolve) {
+        _resolve(ctx);
+      }
+    });
+    if (!pending) {
+      pending = true;
+      if (useMacroTask) {
+        macroTimerFunc();
+      } else {
+        microTimerFunc();
       }
     }
+    // $flow-disable-line
+    if (!cb && typeof Promise !== 'undefined') {
+      return new Promise(function (resolve) {
+        _resolve = resolve;
+      })
+    }
   }
-  globalHandleError(err, vm, info);
-}
 
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
+  /*  */
+
+  /* not type checking this file because flow doesn't play well with Proxy */
+
+  var initProxy;
+
+  {
+    var allowedGlobals = makeMap(
+      'Infinity,undefined,NaN,isFinite,isNaN,' +
+      'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+      'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+      'require' // for Webpack/Browserify
+    );
+
+    var warnNonPresent = function (target, key) {
+      warn(
+        "Property or method \"" + key + "\" is not defined on the instance but " +
+        'referenced during render. Make sure that this property is reactive, ' +
+        'either in the data option, or for class-based components, by ' +
+        'initializing the property. ' +
+        'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+        target
+      );
+    };
+
+    var warnReservedPrefix = function (target, key) {
+      warn(
+        "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+        'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+        'prevent conflicts with Vue internals' +
+        'See: https://vuejs.org/v2/api/#data',
+        target
+      );
+    };
+
+    var hasProxy =
+      typeof Proxy !== 'undefined' && isNative(Proxy);
+
+    if (hasProxy) {
+      var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+      config.keyCodes = new Proxy(config.keyCodes, {
+        set: function set (target, key, value) {
+          if (isBuiltInModifier(key)) {
+            warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+            return false
+          } else {
+            target[key] = value;
+            return true
+          }
+        }
+      });
     }
+
+    var hasHandler = {
+      has: function has (target, key) {
+        var has = key in target;
+        var isAllowed = allowedGlobals(key) ||
+          (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
+        if (!has && !isAllowed) {
+          if (key in target.$data) { warnReservedPrefix(target, key); }
+          else { warnNonPresent(target, key); }
+        }
+        return has || !isAllowed
+      }
+    };
+
+    var getHandler = {
+      get: function get (target, key) {
+        if (typeof key === 'string' && !(key in target)) {
+          if (key in target.$data) { warnReservedPrefix(target, key); }
+          else { warnNonPresent(target, key); }
+        }
+        return target[key]
+      }
+    };
+
+    initProxy = function initProxy (vm) {
+      if (hasProxy) {
+        // determine which proxy handler to use
+        var options = vm.$options;
+        var handlers = options.render && options.render._withStripped
+          ? getHandler
+          : hasHandler;
+        vm._renderProxy = new Proxy(vm, handlers);
+      } else {
+        vm._renderProxy = vm;
+      }
+    };
   }
-  logError(err, vm, info);
-}
 
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  /*  */
+
+  var seenObjects = new _Set();
+
+  /**
+   * Recursively traverse an object to evoke all converted
+   * getters, so that every nested property inside the object
+   * is collected as a "deep" dependency.
+   */
+  function traverse (val) {
+    _traverse(val, seenObjects);
+    seenObjects.clear();
   }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    var res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
-  })
-}
 
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
+  function _traverse (val, seen) {
+    var i, keys;
+    var isA = Array.isArray(val);
+    if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+      return
+    }
+    if (val.__ob__) {
+      var depId = val.__ob__.dep.id;
+      if (seen.has(depId)) {
+        return
       }
-    } else if (_resolve) {
-      _resolve(ctx);
+      seen.add(depId);
     }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
+    if (isA) {
+      i = val.length;
+      while (i--) { _traverse(val[i], seen); }
     } else {
-      microTimerFunc();
+      keys = Object.keys(val);
+      i = keys.length;
+      while (i--) { _traverse(val[keys[i]], seen); }
     }
   }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
 
-/*  */
+  var mark;
+  var measure;
 
-/* not type checking this file because flow doesn't play well with Proxy */
+  {
+    var perf = inBrowser && window.performance;
+    /* istanbul ignore if */
+    if (
+      perf &&
+      perf.mark &&
+      perf.measure &&
+      perf.clearMarks &&
+      perf.clearMeasures
+    ) {
+      mark = function (tag) { return perf.mark(tag); };
+      measure = function (name, startTag, endTag) {
+        perf.measure(name, startTag, endTag);
+        perf.clearMarks(startTag);
+        perf.clearMarks(endTag);
+        perf.clearMeasures(name);
+      };
+    }
+  }
 
-var initProxy;
+  /*  */
 
-{
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
+  var normalizeEvent = cached(function (name) {
+    var passive = name.charAt(0) === '&';
+    name = passive ? name.slice(1) : name;
+    var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+    name = once$$1 ? name.slice(1) : name;
+    var capture = name.charAt(0) === '!';
+    name = capture ? name.slice(1) : name;
+    return {
+      name: name,
+      once: once$$1,
+      capture: capture,
+      passive: passive
+    }
+  });
 
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
+  function createFnInvoker (fns) {
+    function invoker () {
+      var arguments$1 = arguments;
 
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
+      var fns = invoker.fns;
+      if (Array.isArray(fns)) {
+        var cloned = fns.slice();
+        for (var i = 0; i < cloned.length; i++) {
+          cloned[i].apply(null, arguments$1);
+        }
+      } else {
+        // return handler return value for single handlers
+        return fns.apply(null, arguments)
+      }
+    }
+    invoker.fns = fns;
+    return invoker
+  }
 
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
+  function updateListeners (
+    on,
+    oldOn,
+    add,
+    remove$$1,
+    createOnceHandler,
+    vm
+  ) {
+    var name, def$$1, cur, old, event;
+    for (name in on) {
+      def$$1 = cur = on[name];
+      old = oldOn[name];
+      event = normalizeEvent(name);
+      if (isUndef(cur)) {
+        warn(
+          "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+          vm
+        );
+      } else if (isUndef(old)) {
+        if (isUndef(cur.fns)) {
+          cur = on[name] = createFnInvoker(cur);
+        }
+        if (isTrue(event.once)) {
+          cur = on[name] = createOnceHandler(event.name, cur, event.capture);
         }
+        add(event.name, cur, event.capture, event.passive, event.params);
+      } else if (cur !== old) {
+        old.fns = cur;
+        on[name] = old;
       }
-    });
+    }
+    for (name in oldOn) {
+      if (isUndef(on[name])) {
+        event = normalizeEvent(name);
+        remove$$1(event.name, oldOn[name], event.capture);
+      }
+    }
   }
 
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) || (typeof key === 'string' && key.charAt(0) === '_');
-      if (!has && !isAllowed) {
-        warnNonPresent(target, key);
-      }
-      return has || !isAllowed
+  /*  */
+
+  function mergeVNodeHook (def, hookKey, hook) {
+    if (def instanceof VNode) {
+      def = def.data.hook || (def.data.hook = {});
     }
-  };
+    var invoker;
+    var oldHook = def[hookKey];
 
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
-      }
-      return target[key]
+    function wrappedHook () {
+      hook.apply(this, arguments);
+      // important: remove merged hook to ensure it's called only once
+      // and prevent memory leak
+      remove(invoker.fns, wrappedHook);
     }
-  };
 
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
+    if (isUndef(oldHook)) {
+      // no existing hook
+      invoker = createFnInvoker([wrappedHook]);
     } else {
-      vm._renderProxy = vm;
+      /* istanbul ignore if */
+      if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+        // already a merged invoker
+        invoker = oldHook;
+        invoker.fns.push(wrappedHook);
+      } else {
+        // existing plain hook
+        invoker = createFnInvoker([oldHook, wrappedHook]);
+      }
     }
-  };
-}
 
-/*  */
+    invoker.merged = true;
+    def[hookKey] = invoker;
+  }
 
-var seenObjects = new _Set();
+  /*  */
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
+  function extractPropsFromVNodeData (
+    data,
+    Ctor,
+    tag
+  ) {
+    // we are only extracting raw values here.
+    // validation and default values are handled in the child
+    // component itself.
+    var propOptions = Ctor.options.props;
+    if (isUndef(propOptions)) {
       return
     }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
+    var res = {};
+    var attrs = data.attrs;
+    var props = data.props;
+    if (isDef(attrs) || isDef(props)) {
+      for (var key in propOptions) {
+        var altKey = hyphenate(key);
+        {
+          var keyInLowerCase = key.toLowerCase();
+          if (
+            key !== keyInLowerCase &&
+            attrs && hasOwn(attrs, keyInLowerCase)
+          ) {
+            tip(
+              "Prop \"" + keyInLowerCase + "\" is passed to component " +
+              (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+              " \"" + key + "\". " +
+              "Note that HTML attributes are case-insensitive and camelCased " +
+              "props need to use their kebab-case equivalents when using in-DOM " +
+              "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+            );
+          }
+        }
+        checkProp(res, props, key, altKey, true) ||
+        checkProp(res, attrs, key, altKey, false);
+      }
+    }
+    return res
   }
-}
 
-var mark;
-var measure;
-
-{
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
+  function checkProp (
+    res,
+    hash,
+    key,
+    altKey,
+    preserve
   ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
+    if (isDef(hash)) {
+      if (hasOwn(hash, key)) {
+        res[key] = hash[key];
+        if (!preserve) {
+          delete hash[key];
+        }
+        return true
+      } else if (hasOwn(hash, altKey)) {
+        res[key] = hash[altKey];
+        if (!preserve) {
+          delete hash[altKey];
+        }
+        return true
+      }
+    }
+    return false
   }
-}
 
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
+  /*  */
 
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
+  // The template compiler attempts to minimize the need for normalization by
+  // statically analyzing the template at compile time.
+  //
+  // For plain HTML markup, normalization can be completely skipped because the
+  // generated render function is guaranteed to return Array<VNode>. There are
+  // two cases where extra normalization is needed:
 
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  vm
-) {
-  var name, def, cur, old, event;
-  for (name in on) {
-    def = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    /* istanbul ignore if */
-    if (isUndef(cur)) {
-      "development" !== 'production' && warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
+  // 1. When the children contains components - because a functional component
+  // may return an Array instead of a single root. In this case, just a simple
+  // normalization is needed - if any child is an Array, we flatten the whole
+  // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+  // because functional components already normalize their own children.
+  function simpleNormalizeChildren (children) {
+    for (var i = 0; i < children.length; i++) {
+      if (Array.isArray(children[i])) {
+        return Array.prototype.concat.apply([], children)
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
     }
+    return children
   }
-}
-
-/*  */
 
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
+  // 2. When the children contains constructs that always generated nested Arrays,
+  // e.g. <template>, <slot>, v-for, or when the children is provided by user
+  // with hand-written render functions / JSX. In such cases a full normalization
+  // is needed to cater to all possible types of children values.
+  function normalizeChildren (children) {
+    return isPrimitive(children)
+      ? [createTextVNode(children)]
+      : Array.isArray(children)
+        ? normalizeArrayChildren(children)
+        : undefined
   }
-  var invoker;
-  var oldHook = def[hookKey];
 
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
+  function isTextNode (node) {
+    return isDef(node) && isDef(node.text) && isFalse(node.isComment)
   }
 
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
+  function normalizeArrayChildren (children, nestedIndex) {
+    var res = [];
+    var i, c, lastIndex, last;
+    for (i = 0; i < children.length; i++) {
+      c = children[i];
+      if (isUndef(c) || typeof c === 'boolean') { continue }
+      lastIndex = res.length - 1;
+      last = res[lastIndex];
+      //  nested
+      if (Array.isArray(c)) {
+        if (c.length > 0) {
+          c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+          // merge adjacent text nodes
+          if (isTextNode(c[0]) && isTextNode(last)) {
+            res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+            c.shift();
+          }
+          res.push.apply(res, c);
+        }
+      } else if (isPrimitive(c)) {
+        if (isTextNode(last)) {
+          // merge adjacent text nodes
+          // this is necessary for SSR hydration because text nodes are
+          // essentially merged when rendered to HTML strings
+          res[lastIndex] = createTextVNode(last.text + c);
+        } else if (c !== '') {
+          // convert primitive to vnode
+          res.push(createTextVNode(c));
+        }
+      } else {
+        if (isTextNode(c) && isTextNode(last)) {
+          // merge adjacent text nodes
+          res[lastIndex] = createTextVNode(last.text + c.text);
+        } else {
+          // default key for nested array children (likely generated by v-for)
+          if (isTrue(children._isVList) &&
+            isDef(c.tag) &&
+            isUndef(c.key) &&
+            isDef(nestedIndex)) {
+            c.key = "__vlist" + nestedIndex + "_" + i + "__";
+          }
+          res.push(c);
         }
       }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
     }
+    return res
   }
-  return res
-}
 
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
+  /*  */
+
+  function ensureCtor (comp, base) {
+    if (
+      comp.__esModule ||
+      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+    ) {
+      comp = comp.default;
     }
+    return isObject(comp)
+      ? base.extend(comp)
+      : comp
   }
-  return res
-}
 
-/*  */
+  function createAsyncPlaceholder (
+    factory,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    var node = createEmptyVNode();
+    node.asyncFactory = factory;
+    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+    return node
+  }
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  function resolveAsyncComponent (
+    factory,
+    baseCtor,
+    context
   ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
+    if (isTrue(factory.error) && isDef(factory.errorComp)) {
+      return factory.errorComp
+    }
 
-    var forceRender = function () {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-    };
+    if (isDef(factory.resolved)) {
+      return factory.resolved
+    }
 
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender();
-      }
-    });
+    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+      return factory.loadingComp
+    }
 
-    var reject = once(function (reason) {
-      "development" !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender();
-      }
-    });
+    if (isDef(factory.contexts)) {
+      // already pending
+      factory.contexts.push(context);
+    } else {
+      var contexts = factory.contexts = [context];
+      var sync = true;
 
-    var res = factory(resolve, reject);
+      var forceRender = function (renderCompleted) {
+        for (var i = 0, l = contexts.length; i < l; i++) {
+          contexts[i].$forceUpdate();
+        }
 
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
+        if (renderCompleted) {
+          contexts.length = 0;
         }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
+      };
 
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
+      var resolve = once(function (res) {
+        // cache resolved
+        factory.resolved = ensureCtor(res, baseCtor);
+        // invoke callbacks only if this is not a synchronous resolve
+        // (async resolves are shimmed as synchronous during SSR)
+        if (!sync) {
+          forceRender(true);
         }
+      });
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender();
-              }
-            }, res.delay || 200);
-          }
+      var reject = once(function (reason) {
+        warn(
+          "Failed to resolve async component: " + (String(factory)) +
+          (reason ? ("\nReason: " + reason) : '')
+        );
+        if (isDef(factory.errorComp)) {
+          factory.error = true;
+          forceRender(true);
         }
+      });
+
+      var res = factory(resolve, reject);
+
+      if (isObject(res)) {
+        if (typeof res.then === 'function') {
+          // () => Promise
+          if (isUndef(factory.resolved)) {
+            res.then(resolve, reject);
+          }
+        } else if (isDef(res.component) && typeof res.component.then === 'function') {
+          res.component.then(resolve, reject);
+
+          if (isDef(res.error)) {
+            factory.errorComp = ensureCtor(res.error, baseCtor);
+          }
 
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
+          if (isDef(res.loading)) {
+            factory.loadingComp = ensureCtor(res.loading, baseCtor);
+            if (res.delay === 0) {
+              factory.loading = true;
+            } else {
+              setTimeout(function () {
+                if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                  factory.loading = true;
+                  forceRender(false);
+                }
+              }, res.delay || 200);
             }
-          }, res.timeout);
+          }
+
+          if (isDef(res.timeout)) {
+            setTimeout(function () {
+              if (isUndef(factory.resolved)) {
+                reject(
+                  "timeout (" + (res.timeout) + "ms)"
+                );
+              }
+            }, res.timeout);
+          }
         }
       }
-    }
 
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+      sync = false;
+      // return in case resolved synchronously
+      return factory.loading
+        ? factory.loadingComp
+        : factory.resolved
+    }
   }
-}
 
-/*  */
+  /*  */
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
+  function isAsyncPlaceholder (node) {
+    return node.isComment && node.asyncFactory
+  }
 
-/*  */
+  /*  */
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
+  function getFirstComponentChild (children) {
+    if (Array.isArray(children)) {
+      for (var i = 0; i < children.length; i++) {
+        var c = children[i];
+        if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+          return c
+        }
       }
     }
   }
-}
 
-/*  */
+  /*  */
 
-/*  */
+  /*  */
 
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
+  function initEvents (vm) {
+    vm._events = Object.create(null);
+    vm._hasHookEvent = false;
+    // init parent attached events
+    var listeners = vm.$options._parentListeners;
+    if (listeners) {
+      updateComponentListeners(vm, listeners);
+    }
   }
-}
 
-var target;
+  var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
+  function add (event, fn) {
     target.$on(event, fn);
   }
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
-  target = undefined;
-}
 
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var this$1 = this;
+  function remove$1 (event, fn) {
+    target.$off(event, fn);
+  }
 
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
+  function createOnceHandler (event, fn) {
+    var _target = target;
+    return function onceHandler () {
+      var res = fn.apply(null, arguments);
+      if (res !== null) {
+        _target.$off(event, onceHandler);
       }
     }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var this$1 = this;
+  }
 
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        this$1.$off(event[i], fn);
+  function updateComponentListeners (
+    vm,
+    listeners,
+    oldListeners
+  ) {
+    target = vm;
+    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+    target = undefined;
+  }
+
+  function eventsMixin (Vue) {
+    var hookRE = /^hook:/;
+    Vue.prototype.$on = function (event, fn) {
+      var vm = this;
+      if (Array.isArray(event)) {
+        for (var i = 0, l = event.length; i < l; i++) {
+          vm.$on(event[i], fn);
+        }
+      } else {
+        (vm._events[event] || (vm._events[event] = [])).push(fn);
+        // optimize hook:event cost by using a boolean flag marked at registration
+        // instead of a hash lookup
+        if (hookRE.test(event)) {
+          vm._hasHookEvent = true;
+        }
       }
       return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
+    };
+
+    Vue.prototype.$once = function (event, fn) {
+      var vm = this;
+      function on () {
+        vm.$off(event, on);
+        fn.apply(vm, arguments);
+      }
+      on.fn = fn;
+      vm.$on(event, on);
       return vm
-    }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
+    };
+
+    Vue.prototype.$off = function (event, fn) {
+      var vm = this;
+      // all
+      if (!arguments.length) {
+        vm._events = Object.create(null);
+        return vm
+      }
+      // array of events
+      if (Array.isArray(event)) {
+        for (var i = 0, l = event.length; i < l; i++) {
+          vm.$off(event[i], fn);
+        }
+        return vm
+      }
+      // specific event
+      var cbs = vm._events[event];
+      if (!cbs) {
+        return vm
+      }
+      if (!fn) {
+        vm._events[event] = null;
+        return vm
+      }
+      if (fn) {
+        // specific handler
+        var cb;
+        var i$1 = cbs.length;
+        while (i$1--) {
+          cb = cbs[i$1];
+          if (cb === fn || cb.fn === fn) {
+            cbs.splice(i$1, 1);
+            break
+          }
         }
       }
-    }
-    return vm
-  };
+      return vm
+    };
 
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
+    Vue.prototype.$emit = function (event) {
+      var vm = this;
+      {
+        var lowerCaseEvent = event.toLowerCase();
+        if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+          tip(
+            "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+            (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+            "Note that HTML attributes are case-insensitive and you cannot use " +
+            "v-on to listen to camelCase events when using in-DOM templates. " +
+            "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+          );
+        }
       }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
+      var cbs = vm._events[event];
+      if (cbs) {
+        cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+        var args = toArray(arguments, 1);
+        for (var i = 0, l = cbs.length; i < l; i++) {
+          try {
+            cbs[i].apply(vm, args);
+          } catch (e) {
+            handleError(e, vm, ("event handler for \"" + event + "\""));
+          }
         }
       }
-    }
-    return vm
-  };
-}
+      return vm
+    };
+  }
 
-/*  */
+  /*  */
 
 
 
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
+  /**
+   * Runtime helper for resolving raw children VNodes into a slot object.
+   */
+  function resolveSlots (
+    children,
+    context
+  ) {
+    var slots = {};
+    if (!children) {
+      return slots
+    }
+    for (var i = 0, l = children.length; i < l; i++) {
+      var child = children[i];
+      var data = child.data;
+      // remove slot attribute if the node is resolved as a Vue slot node
+      if (data && data.attrs && data.attrs.slot) {
+        delete data.attrs.slot;
+      }
+      // named slots should only be respected if the vnode was rendered in the
+      // same context.
+      if ((child.context === context || child.fnContext === context) &&
+        data && data.slot != null
+      ) {
+        var name = data.slot;
+        var slot = (slots[name] || (slots[name] = []));
+        if (child.tag === 'template') {
+          slot.push.apply(slot, child.children || []);
+        } else {
+          slot.push(child);
+        }
       } else {
-        slot.push(child);
+        (slots.default || (slots.default = [])).push(child);
       }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
     }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
+    // ignore slots that contains only whitespace
+    for (var name$1 in slots) {
+      if (slots[name$1].every(isWhitespace)) {
+        delete slots[name$1];
+      }
     }
+    return slots
   }
-  return slots
-}
 
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
+  function isWhitespace (node) {
+    return (node.isComment && !node.asyncFactory) || node.text === ' '
+  }
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
+  function resolveScopedSlots (
+    fns, // see flow/vnode
+    res
+  ) {
+    res = res || {};
+    for (var i = 0; i < fns.length; i++) {
+      if (Array.isArray(fns[i])) {
+        resolveScopedSlots(fns[i], res);
+      } else {
+        res[fns[i].key] = fns[i].fn;
+      }
     }
+    return res
   }
-  return res
-}
 
-/*  */
+  /*  */
 
-var activeInstance = null;
-var isUpdatingChildComponent = false;
+  var activeInstance = null;
+  var isUpdatingChildComponent = false;
 
-function initLifecycle (vm) {
-  var options = vm.$options;
+  function initLifecycle (vm) {
+    var options = vm.$options;
 
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
+    // locate first non-abstract parent
+    var parent = options.parent;
+    if (parent && !options.abstract) {
+      while (parent.$options.abstract && parent.$parent) {
+        parent = parent.$parent;
+      }
+      parent.$children.push(vm);
     }
-    parent.$children.push(vm);
-  }
 
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
+    vm.$parent = parent;
+    vm.$root = parent ? parent.$root : vm;
 
-  vm.$children = [];
-  vm.$refs = {};
+    vm.$children = [];
+    vm.$refs = {};
 
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
+    vm._watcher = null;
+    vm._inactive = null;
+    vm._directInactive = false;
+    vm._isMounted = false;
+    vm._isDestroyed = false;
+    vm._isBeingDestroyed = false;
+  }
+
+  function lifecycleMixin (Vue) {
+    Vue.prototype._update = function (vnode, hydrating) {
+      var vm = this;
+      var prevEl = vm.$el;
+      var prevVnode = vm._vnode;
+      var prevActiveInstance = activeInstance;
+      activeInstance = vm;
+      vm._vnode = vnode;
+      // Vue.prototype.__patch__ is injected in entry points
+      // based on the rendering backend used.
+      if (!prevVnode) {
+        // initial render
+        vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+      } else {
+        // updates
+        vm.$el = vm.__patch__(prevVnode, vnode);
+      }
+      activeInstance = prevActiveInstance;
+      // update __vue__ reference
+      if (prevEl) {
+        prevEl.__vue__ = null;
+      }
+      if (vm.$el) {
+        vm.$el.__vue__ = vm;
+      }
+      // if parent is an HOC, update its $el as well
+      if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+        vm.$parent.$el = vm.$el;
+      }
+      // updated hook is called by the scheduler to ensure that children are
+      // updated in a parent's updated hook.
+    };
 
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    activeInstance = prevActiveInstance;
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
+    Vue.prototype.$forceUpdate = function () {
+      var vm = this;
+      if (vm._watcher) {
+        vm._watcher.update();
+      }
+    };
 
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
+    Vue.prototype.$destroy = function () {
+      var vm = this;
+      if (vm._isBeingDestroyed) {
+        return
+      }
+      callHook(vm, 'beforeDestroy');
+      vm._isBeingDestroyed = true;
+      // remove self from parent
+      var parent = vm.$parent;
+      if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+        remove(parent.$children, vm);
+      }
+      // teardown watchers
+      if (vm._watcher) {
+        vm._watcher.teardown();
+      }
+      var i = vm._watchers.length;
+      while (i--) {
+        vm._watchers[i].teardown();
+      }
+      // remove reference from data ob
+      // frozen object may not have observer.
+      if (vm._data.__ob__) {
+        vm._data.__ob__.vmCount--;
+      }
+      // call the last hook...
+      vm._isDestroyed = true;
+      // invoke destroy hooks on current rendered tree
+      vm.__patch__(vm._vnode, null);
+      // fire destroyed hook
+      callHook(vm, 'destroyed');
+      // turn off all instance listeners.
+      vm.$off();
+      // remove __vue__ reference
+      if (vm.$el) {
+        vm.$el.__vue__ = null;
+      }
+      // release circular reference (#6759)
+      if (vm.$vnode) {
+        vm.$vnode.parent = null;
+      }
+    };
+  }
 
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
+  function mountComponent (
+    vm,
+    el,
+    hydrating
+  ) {
+    vm.$el = el;
+    if (!vm.$options.render) {
+      vm.$options.render = createEmptyVNode;
+      {
+        /* istanbul ignore if */
+        if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+          vm.$options.el || el) {
+          warn(
+            'You are using the runtime-only build of Vue where the template ' +
+            'compiler is not available. Either pre-compile the templates into ' +
+            'render functions, or use the compiler-included build.',
+            vm
+          );
+        } else {
+          warn(
+            'Failed to mount component: template or render function not defined.',
+            vm
+          );
+        }
       }
     }
-  }
-  callHook(vm, 'beforeMount');
+    callHook(vm, 'beforeMount');
 
-  var updateComponent;
-  /* istanbul ignore if */
-  if ("development" !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
+    var updateComponent;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      updateComponent = function () {
+        var name = vm._name;
+        var id = vm._uid;
+        var startTag = "vue-perf-start:" + id;
+        var endTag = "vue-perf-end:" + id;
+
+        mark(startTag);
+        var vnode = vm._render();
+        mark(endTag);
+        measure(("vue " + name + " render"), startTag, endTag);
+
+        mark(startTag);
+        vm._update(vnode, hydrating);
+        mark(endTag);
+        measure(("vue " + name + " patch"), startTag, endTag);
+      };
+    } else {
+      updateComponent = function () {
+        vm._update(vm._render(), hydrating);
+      };
+    }
 
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted) {
-        callHook(vm, 'beforeUpdate');
+    // we set this to vm._watcher inside the watcher's constructor
+    // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+    // component's mounted hook), which relies on vm._watcher being already defined
+    new Watcher(vm, updateComponent, noop, {
+      before: function before () {
+        if (vm._isMounted) {
+          callHook(vm, 'beforeUpdate');
+        }
       }
-    }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
+    }, true /* isRenderWatcher */);
+    hydrating = false;
 
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
+    // manually mounted instance, call mounted on self
+    // mounted is called for render-created child components in its inserted hook
+    if (vm.$vnode == null) {
+      vm._isMounted = true;
+      callHook(vm, 'mounted');
+    }
+    return vm
   }
-  return vm
-}
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  {
-    isUpdatingChildComponent = true;
-  }
+  function updateChildComponent (
+    vm,
+    propsData,
+    listeners,
+    parentVnode,
+    renderChildren
+  ) {
+    {
+      isUpdatingChildComponent = true;
+    }
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
+    // determine whether component has slot children
+    // we need to do this before overwriting $options._renderChildren
+    var hasChildren = !!(
+      renderChildren ||               // has new static slots
+      vm.$options._renderChildren ||  // has old static slots
+      parentVnode.data.scopedSlots || // has new scoped slots
+      vm.$scopedSlots !== emptyObject // has old scoped slots
+    );
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+    vm.$options._parentVnode = parentVnode;
+    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
+    if (vm._vnode) { // update child tree's parent
+      vm._vnode.parent = parentVnode;
+    }
+    vm.$options._renderChildren = renderChildren;
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+    // update $attrs and $listeners hash
+    // these are also reactive so they may trigger child update if the child
+    // used them during render
+    vm.$attrs = parentVnode.data.attrs || emptyObject;
+    vm.$listeners = listeners || emptyObject;
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
+    // update props
+    if (propsData && vm.$options.props) {
+      toggleObserving(false);
+      var props = vm._props;
+      var propKeys = vm.$options._propKeys || [];
+      for (var i = 0; i < propKeys.length; i++) {
+        var key = propKeys[i];
+        var propOptions = vm.$options.props; // wtf flow?
+        props[key] = validateProp(key, propOptions, propsData, vm);
+      }
+      toggleObserving(true);
+      // keep a copy of raw propsData
+      vm.$options.propsData = propsData;
     }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+    // update listeners
+    listeners = listeners || emptyObject;
+    var oldListeners = vm.$options._parentListeners;
+    vm.$options._parentListeners = listeners;
+    updateComponentListeners(vm, listeners, oldListeners);
 
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
+    // resolve slots + force update if has children
+    if (hasChildren) {
+      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+      vm.$forceUpdate();
+    }
 
-  {
-    isUpdatingChildComponent = false;
+    {
+      isUpdatingChildComponent = false;
+    }
   }
-}
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
+  function isInInactiveTree (vm) {
+    while (vm && (vm = vm.$parent)) {
+      if (vm._inactive) { return true }
+    }
+    return false
   }
-  return false
-}
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
+  function activateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = false;
+      if (isInInactiveTree(vm)) {
+        return
+      }
+    } else if (vm._directInactive) {
       return
     }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+    if (vm._inactive || vm._inactive === null) {
+      vm._inactive = false;
+      for (var i = 0; i < vm.$children.length; i++) {
+        activateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'activated');
     }
-    callHook(vm, 'activated');
   }
-}
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
+  function deactivateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = true;
+      if (isInInactiveTree(vm)) {
+        return
+      }
     }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
+    if (!vm._inactive) {
+      vm._inactive = true;
+      for (var i = 0; i < vm.$children.length; i++) {
+        deactivateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'deactivated');
     }
-    callHook(vm, 'deactivated');
   }
-}
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
+  function callHook (vm, hook) {
+    // #7573 disable dep collection when invoking lifecycle hooks
+    pushTarget();
+    var handlers = vm.$options[hook];
+    if (handlers) {
+      for (var i = 0, j = handlers.length; i < j; i++) {
+        try {
+          handlers[i].call(vm);
+        } catch (e) {
+          handleError(e, vm, (hook + " hook"));
+        }
       }
     }
+    if (vm._hasHookEvent) {
+      vm.$emit('hook:' + hook);
+    }
+    popTarget();
   }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
 
-/*  */
+  /*  */
 
+  var MAX_UPDATE_COUNT = 100;
 
-var MAX_UPDATE_COUNT = 100;
+  var queue = [];
+  var activatedChildren = [];
+  var has = {};
+  var circular = {};
+  var waiting = false;
+  var flushing = false;
+  var index = 0;
 
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
+  /**
+   * Reset the scheduler's state.
+   */
+  function resetSchedulerState () {
+    index = queue.length = activatedChildren.length = 0;
+    has = {};
+    {
+      circular = {};
+    }
+    waiting = flushing = false;
   }
-  waiting = flushing = false;
-}
 
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if ("development" !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
+  /**
+   * Flush both queues and run the watchers.
+   */
+  function flushSchedulerQueue () {
+    flushing = true;
+    var watcher, id;
+
+    // Sort queue before flush.
+    // This ensures that:
+    // 1. Components are updated from parent to child. (because parent is always
+    //    created before the child)
+    // 2. A component's user watchers are run before its render watcher (because
+    //    user watchers are created before the render watcher)
+    // 3. If a component is destroyed during a parent component's watcher run,
+    //    its watchers can be skipped.
+    queue.sort(function (a, b) { return a.id - b.id; });
+
+    // do not cache length because more watchers might be pushed
+    // as we run existing watchers
+    for (index = 0; index < queue.length; index++) {
+      watcher = queue[index];
+      if (watcher.before) {
+        watcher.before();
+      }
+      id = watcher.id;
+      has[id] = null;
+      watcher.run();
+      // in dev build, check and stop circular updates.
+      if (has[id] != null) {
+        circular[id] = (circular[id] || 0) + 1;
+        if (circular[id] > MAX_UPDATE_COUNT) {
+          warn(
+            'You may have an infinite update loop ' + (
+              watcher.user
+                ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+                : "in a component render function."
+            ),
+            watcher.vm
+          );
+          break
+        }
       }
     }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
 
-  resetSchedulerState();
+    // keep copies of post queues before resetting state
+    var activatedQueue = activatedChildren.slice();
+    var updatedQueue = queue.slice();
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
+    resetSchedulerState();
 
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
+    // call component updated and activated hooks
+    callActivatedHooks(activatedQueue);
+    callUpdatedHooks(updatedQueue);
 
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
+    // devtool hook
+    /* istanbul ignore if */
+    if (devtools && config.devtools) {
+      devtools.emit('flush');
     }
   }
-}
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
+  function callUpdatedHooks (queue) {
+    var i = queue.length;
+    while (i--) {
+      var watcher = queue[i];
+      var vm = watcher.vm;
+      if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'updated');
       }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
     }
   }
-}
 
-/*  */
-
-var uid$1 = 0;
+  /**
+   * Queue a kept-alive component that was activated during patch.
+   * The queue will be processed after the entire tree has been patched.
+   */
+  function queueActivatedComponent (vm) {
+    // setting _inactive to false here so that a render function can
+    // rely on checking whether it's in an inactive tree (e.g. router-view)
+    vm._inactive = false;
+    activatedChildren.push(vm);
+  }
 
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.computed = !!options.computed;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.computed = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.computed; // for computed watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = function () {};
-      "development" !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
+  function callActivatedHooks (queue) {
+    for (var i = 0; i < queue.length; i++) {
+      queue[i]._inactive = true;
+      activateChildComponent(queue[i], true /* true */);
     }
   }
-  if (this.computed) {
-    this.value = undefined;
-    this.dep = new Dep();
-  } else {
-    this.value = this.get();
+
+  /**
+   * Push a watcher into the watcher queue.
+   * Jobs with duplicate IDs will be skipped unless it's
+   * pushed when the queue is being flushed.
+   */
+  function queueWatcher (watcher) {
+    var id = watcher.id;
+    if (has[id] == null) {
+      has[id] = true;
+      if (!flushing) {
+        queue.push(watcher);
+      } else {
+        // if already flushing, splice the watcher based on its id
+        // if already past its id, it will be run next immediately.
+        var i = queue.length - 1;
+        while (i > index && queue[i].id > watcher.id) {
+          i--;
+        }
+        queue.splice(i + 1, 0, watcher);
+      }
+      // queue the flush
+      if (!waiting) {
+        waiting = true;
+
+        if (!config.async) {
+          flushSchedulerQueue();
+          return
+        }
+        nextTick(flushSchedulerQueue);
+      }
+    }
   }
-};
 
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+  /*  */
+
+
+
+  var uid$1 = 0;
+
+  /**
+   * A watcher parses an expression, collects dependencies,
+   * and fires callback when the expression value changes.
+   * This is used for both the $watch() api and directives.
+   */
+  var Watcher = function Watcher (
+    vm,
+    expOrFn,
+    cb,
+    options,
+    isRenderWatcher
+  ) {
+    this.vm = vm;
+    if (isRenderWatcher) {
+      vm._watcher = this;
+    }
+    vm._watchers.push(this);
+    // options
+    if (options) {
+      this.deep = !!options.deep;
+      this.user = !!options.user;
+      this.lazy = !!options.lazy;
+      this.sync = !!options.sync;
+      this.before = options.before;
+    } else {
+      this.deep = this.user = this.lazy = this.sync = false;
+    }
+    this.cb = cb;
+    this.id = ++uid$1; // uid for batching
+    this.active = true;
+    this.dirty = this.lazy; // for lazy watchers
+    this.deps = [];
+    this.newDeps = [];
+    this.depIds = new _Set();
+    this.newDepIds = new _Set();
+    this.expression = expOrFn.toString();
+    // parse expression for getter
+    if (typeof expOrFn === 'function') {
+      this.getter = expOrFn;
     } else {
-      throw e
+      this.getter = parsePath(expOrFn);
+      if (!this.getter) {
+        this.getter = noop;
+        warn(
+          "Failed watching path: \"" + expOrFn + "\" " +
+          'Watcher only accepts simple dot-delimited paths. ' +
+          'For full control, use a function instead.',
+          vm
+        );
+      }
     }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
+    this.value = this.lazy
+      ? undefined
+      : this.get();
+  };
+
+  /**
+   * Evaluate the getter, and re-collect dependencies.
+   */
+  Watcher.prototype.get = function get () {
+    pushTarget(this);
+    var value;
+    var vm = this.vm;
+    try {
+      value = this.getter.call(vm, vm);
+    } catch (e) {
+      if (this.user) {
+        handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+      } else {
+        throw e
+      }
+    } finally {
+      // "touch" every property so they are all tracked as
+      // dependencies for deep watching
+      if (this.deep) {
+        traverse(value);
+      }
+      popTarget();
+      this.cleanupDeps();
     }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
+    return value
+  };
 
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
+  /**
+   * Add a dependency to this directive.
+   */
+  Watcher.prototype.addDep = function addDep (dep) {
+    var id = dep.id;
+    if (!this.newDepIds.has(id)) {
+      this.newDepIds.add(id);
+      this.newDeps.push(dep);
+      if (!this.depIds.has(id)) {
+        dep.addSub(this);
+      }
     }
-  }
-};
+  };
 
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var this$1 = this;
-
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this$1.deps[i];
-    if (!this$1.newDepIds.has(dep.id)) {
-      dep.removeSub(this$1);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-    var this$1 = this;
-
-  /* istanbul ignore else */
-  if (this.computed) {
-    // A computed property watcher has two modes: lazy and activated.
-    // It initializes as lazy by default, and only becomes activated when
-    // it is depended on by at least one subscriber, which is typically
-    // another computed property or a component's render function.
-    if (this.dep.subs.length === 0) {
-      // In lazy mode, we don't want to perform computations until necessary,
-      // so we simply mark the watcher as dirty. The actual computation is
-      // performed just-in-time in this.evaluate() when the computed property
-      // is accessed.
+  /**
+   * Clean up for dependency collection.
+   */
+  Watcher.prototype.cleanupDeps = function cleanupDeps () {
+    var i = this.deps.length;
+    while (i--) {
+      var dep = this.deps[i];
+      if (!this.newDepIds.has(dep.id)) {
+        dep.removeSub(this);
+      }
+    }
+    var tmp = this.depIds;
+    this.depIds = this.newDepIds;
+    this.newDepIds = tmp;
+    this.newDepIds.clear();
+    tmp = this.deps;
+    this.deps = this.newDeps;
+    this.newDeps = tmp;
+    this.newDeps.length = 0;
+  };
+
+  /**
+   * Subscriber interface.
+   * Will be called when a dependency changes.
+   */
+  Watcher.prototype.update = function update () {
+    /* istanbul ignore else */
+    if (this.lazy) {
       this.dirty = true;
+    } else if (this.sync) {
+      this.run();
     } else {
-      // In activated mode, we want to proactively perform the computation
-      // but only notify our subscribers when the value has indeed changed.
-      this.getAndInvoke(function () {
-        this$1.dep.notify();
-      });
+      queueWatcher(this);
     }
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
+  };
 
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    this.getAndInvoke(this.cb);
-  }
-};
-
-Watcher.prototype.getAndInvoke = function getAndInvoke (cb) {
-  var value = this.get();
-  if (
-    value !== this.value ||
-    // Deep watchers and watchers on Object/Arrays should fire even
-    // when the value is the same, because the value may
-    // have mutated.
-    isObject(value) ||
-    this.deep
-  ) {
-    // set new value
-    var oldValue = this.value;
-    this.value = value;
-    this.dirty = false;
-    if (this.user) {
-      try {
-        cb.call(this.vm, value, oldValue);
-      } catch (e) {
-        handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+  /**
+   * Scheduler job interface.
+   * Will be called by the scheduler.
+   */
+  Watcher.prototype.run = function run () {
+    if (this.active) {
+      var value = this.get();
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        var oldValue = this.value;
+        this.value = value;
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue);
+          } catch (e) {
+            handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue);
+        }
       }
-    } else {
-      cb.call(this.vm, value, oldValue);
     }
-  }
-};
+  };
 
-/**
- * Evaluate and return the value of the watcher.
- * This only gets called for computed property watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  if (this.dirty) {
+  /**
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
+   */
+  Watcher.prototype.evaluate = function evaluate () {
     this.value = this.get();
     this.dirty = false;
-  }
-  return this.value
-};
-
-/**
- * Depend on this watcher. Only for computed property watchers.
- */
-Watcher.prototype.depend = function depend () {
-  if (this.dep && Dep.target) {
-    this.dep.depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-    var this$1 = this;
+  };
 
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
+  /**
+   * Depend on all deps collected by this watcher.
+   */
+  Watcher.prototype.depend = function depend () {
     var i = this.deps.length;
     while (i--) {
-      this$1.deps[i].removeSub(this$1);
+      this.deps[i].depend();
     }
-    this.active = false;
-  }
-};
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
   };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
+
+  /**
+   * Remove self from all dependencies' subscriber list.
+   */
+  Watcher.prototype.teardown = function teardown () {
+    if (this.active) {
+      // remove self from vm's watcher list
+      // this is a somewhat expensive operation so we skip it
+      // if the vm is being destroyed.
+      if (!this.vm._isBeingDestroyed) {
+        remove(this.vm._watchers, this);
       }
-      defineReactive(props, key, value, function () {
-        if (vm.$parent && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
+      var i = this.deps.length;
+      while (i--) {
+        this.deps[i].removeSub(this);
+      }
+      this.active = false;
     }
   };
 
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    "development" !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
+  /*  */
+
+  var sharedPropertyDefinition = {
+    enumerable: true,
+    configurable: true,
+    get: noop,
+    set: noop
+  };
+
+  function proxy (target, sourceKey, key) {
+    sharedPropertyDefinition.get = function proxyGetter () {
+      return this[sourceKey][key]
+    };
+    sharedPropertyDefinition.set = function proxySetter (val) {
+      this[sourceKey][key] = val;
+    };
+    Object.defineProperty(target, key, sharedPropertyDefinition);
   }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
-      }
+
+  function initState (vm) {
+    vm._watchers = [];
+    var opts = vm.$options;
+    if (opts.props) { initProps(vm, opts.props); }
+    if (opts.methods) { initMethods(vm, opts.methods); }
+    if (opts.data) {
+      initData(vm);
+    } else {
+      observe(vm._data = {}, true /* asRootData */);
+    }
+    if (opts.computed) { initComputed(vm, opts.computed); }
+    if (opts.watch && opts.watch !== nativeWatch) {
+      initWatch(vm, opts.watch);
     }
-    if (props && hasOwn(props, key)) {
-      "development" !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
   }
-}
 
-var computedWatcherOptions = { computed: true };
+  function initProps (vm, propsOptions) {
+    var propsData = vm.$options.propsData || {};
+    var props = vm._props = {};
+    // cache prop keys so that future props updates can iterate using Array
+    // instead of dynamic object key enumeration.
+    var keys = vm.$options._propKeys = [];
+    var isRoot = !vm.$parent;
+    // root instance props should be converted
+    if (!isRoot) {
+      toggleObserving(false);
+    }
+    var loop = function ( key ) {
+      keys.push(key);
+      var value = validateProp(key, propsOptions, propsData, vm);
+      /* istanbul ignore else */
+      {
+        var hyphenatedKey = hyphenate(key);
+        if (isReservedAttribute(hyphenatedKey) ||
+            config.isReservedAttr(hyphenatedKey)) {
+          warn(
+            ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+            vm
+          );
+        }
+        defineReactive$$1(props, key, value, function () {
+          if (!isRoot && !isUpdatingChildComponent) {
+            warn(
+              "Avoid mutating a prop directly since the value will be " +
+              "overwritten whenever the parent component re-renders. " +
+              "Instead, use a data or computed property based on the prop's " +
+              "value. Prop being mutated: \"" + key + "\"",
+              vm
+            );
+          }
+        });
+      }
+      // static props are already proxied on the component's prototype
+      // during Vue.extend(). We only need to proxy props defined at
+      // instantiation here.
+      if (!(key in vm)) {
+        proxy(vm, "_props", key);
+      }
+    };
 
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
+    for (var key in propsOptions) loop( key );
+    toggleObserving(true);
+  }
 
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if ("development" !== 'production' && getter == null) {
+  function initData (vm) {
+    var data = vm.$options.data;
+    data = vm._data = typeof data === 'function'
+      ? getData(data, vm)
+      : data || {};
+    if (!isPlainObject(data)) {
+      data = {};
       warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
+        'data functions should return an object:\n' +
+        'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
         vm
       );
     }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
+    // proxy data on instance
+    var keys = Object.keys(data);
+    var props = vm.$options.props;
+    var methods = vm.$options.methods;
+    var i = keys.length;
+    while (i--) {
+      var key = keys[i];
+      {
+        if (methods && hasOwn(methods, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a data property."),
+            vm
+          );
+        }
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          "The data property \"" + key + "\" is already declared as a prop. " +
+          "Use prop default value instead.",
+          vm
+        );
+      } else if (!isReserved(key)) {
+        proxy(vm, "_data", key);
+      }
     }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : userDef;
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
-      : noop;
-  }
-  if ("development" !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
+    // observe data
+    observe(data, true /* asRootData */);
   }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
 
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      watcher.depend();
-      return watcher.evaluate()
+  function getData (data, vm) {
+    // #7573 disable dep collection when invoking data getters
+    pushTarget();
+    try {
+      return data.call(vm, vm)
+    } catch (e) {
+      handleError(e, vm, "data()");
+      return {}
+    } finally {
+      popTarget();
     }
   }
-}
 
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    {
-      if (methods[key] == null) {
+  var computedWatcherOptions = { lazy: true };
+
+  function initComputed (vm, computed) {
+    // $flow-disable-line
+    var watchers = vm._computedWatchers = Object.create(null);
+    // computed properties are just getters during SSR
+    var isSSR = isServerRendering();
+
+    for (var key in computed) {
+      var userDef = computed[key];
+      var getter = typeof userDef === 'function' ? userDef : userDef.get;
+      if (getter == null) {
         warn(
-          "Method \"" + key + "\" has an undefined value in the component definition. " +
-          "Did you reference the function correctly?",
+          ("Getter is missing for computed property \"" + key + "\"."),
           vm
         );
       }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
+
+      if (!isSSR) {
+        // create internal watcher for the computed property.
+        watchers[key] = new Watcher(
+          vm,
+          getter || noop,
+          noop,
+          computedWatcherOptions
         );
       }
-      if ((key in vm) && isReserved(key)) {
+
+      // component-defined computed properties are already defined on the
+      // component prototype. We only need to define computed properties defined
+      // at instantiation here.
+      if (!(key in vm)) {
+        defineComputed(vm, key, userDef);
+      } else {
+        if (key in vm.$data) {
+          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+        } else if (vm.$options.props && key in vm.$options.props) {
+          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+        }
+      }
+    }
+  }
+
+  function defineComputed (
+    target,
+    key,
+    userDef
+  ) {
+    var shouldCache = !isServerRendering();
+    if (typeof userDef === 'function') {
+      sharedPropertyDefinition.get = shouldCache
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef);
+      sharedPropertyDefinition.set = noop;
+    } else {
+      sharedPropertyDefinition.get = userDef.get
+        ? shouldCache && userDef.cache !== false
+          ? createComputedGetter(key)
+          : createGetterInvoker(userDef.get)
+        : noop;
+      sharedPropertyDefinition.set = userDef.set || noop;
+    }
+    if (sharedPropertyDefinition.set === noop) {
+      sharedPropertyDefinition.set = function () {
         warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
+          ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+          this
         );
+      };
+    }
+    Object.defineProperty(target, key, sharedPropertyDefinition);
+  }
+
+  function createComputedGetter (key) {
+    return function computedGetter () {
+      var watcher = this._computedWatchers && this._computedWatchers[key];
+      if (watcher) {
+        if (watcher.dirty) {
+          watcher.evaluate();
+        }
+        if (Dep.target) {
+          watcher.depend();
+        }
+        return watcher.value
       }
     }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
   }
-}
 
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
+  function createGetterInvoker(fn) {
+    return function computedGetter () {
+      return fn.call(this, this)
+    }
+  }
+
+  function initMethods (vm, methods) {
+    var props = vm.$options.props;
+    for (var key in methods) {
+      {
+        if (typeof methods[key] !== 'function') {
+          warn(
+            "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+            "Did you reference the function correctly?",
+            vm
+          );
+        }
+        if (props && hasOwn(props, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a prop."),
+            vm
+          );
+        }
+        if ((key in vm) && isReserved(key)) {
+          warn(
+            "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+            "Avoid defining component methods that start with _ or $."
+          );
+        }
       }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function (newData) {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
+      vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+    }
   }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
+  function initWatch (vm, watch) {
+    for (var key in watch) {
+      var handler = watch[key];
+      if (Array.isArray(handler)) {
+        for (var i = 0; i < handler.length; i++) {
+          createWatcher(vm, key, handler[i]);
+        }
+      } else {
+        createWatcher(vm, key, handler);
+      }
+    }
+  }
 
-  Vue.prototype.$watch = function (
+  function createWatcher (
+    vm,
     expOrFn,
-    cb,
+    handler,
     options
   ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
+    if (isPlainObject(handler)) {
+      options = handler;
+      handler = handler.handler;
     }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      cb.call(vm, watcher.value);
+    if (typeof handler === 'string') {
+      handler = vm[handler];
     }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
+    return vm.$watch(expOrFn, handler, options)
+  }
 
-/*  */
+  function stateMixin (Vue) {
+    // flow somehow has problems with directly declared definition object
+    // when using Object.defineProperty, so we have to procedurally build up
+    // the object here.
+    var dataDef = {};
+    dataDef.get = function () { return this._data };
+    var propsDef = {};
+    propsDef.get = function () { return this._props };
+    {
+      dataDef.set = function () {
+        warn(
+          'Avoid replacing instance root $data. ' +
+          'Use nested data properties instead.',
+          this
+        );
+      };
+      propsDef.set = function () {
+        warn("$props is readonly.", this);
+      };
+    }
+    Object.defineProperty(Vue.prototype, '$data', dataDef);
+    Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
+    Vue.prototype.$set = set;
+    Vue.prototype.$delete = del;
 
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      {
-        defineReactive(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
+    Vue.prototype.$watch = function (
+      expOrFn,
+      cb,
+      options
+    ) {
+      var vm = this;
+      if (isPlainObject(cb)) {
+        return createWatcher(vm, expOrFn, cb, options)
+      }
+      options = options || {};
+      options.user = true;
+      var watcher = new Watcher(vm, expOrFn, cb, options);
+      if (options.immediate) {
+        try {
+          cb.call(vm, watcher.value);
+        } catch (error) {
+          handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+        }
       }
-    });
-    toggleObserving(true);
+      return function unwatchFn () {
+        watcher.teardown();
+      }
+    };
   }
-}
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
+  /*  */
+
+  function initProvide (vm) {
+    var provide = vm.$options.provide;
+    if (provide) {
+      vm._provided = typeof provide === 'function'
+        ? provide.call(vm)
+        : provide;
+    }
+  }
+
+  function initInjections (vm) {
+    var result = resolveInject(vm.$options.inject, vm);
+    if (result) {
+      toggleObserving(false);
+      Object.keys(result).forEach(function (key) {
+        /* istanbul ignore else */
+        {
+          defineReactive$$1(vm, key, result[key], function () {
+            warn(
+              "Avoid mutating an injected value directly since the changes will be " +
+              "overwritten whenever the provided component re-renders. " +
+              "injection being mutated: \"" + key + "\"",
+              vm
+            );
+          });
+        }
+      });
+      toggleObserving(true);
+    }
+  }
 
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
+  function resolveInject (inject, vm) {
+    if (inject) {
+      // inject is :any because flow is not smart enough to figure out cached
+      var result = Object.create(null);
+      var keys = hasSymbol
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
+        : Object.keys(inject);
+
+      for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        var provideKey = inject[key].from;
+        var source = vm;
+        while (source) {
+          if (source._provided && hasOwn(source._provided, provideKey)) {
+            result[key] = source._provided[provideKey];
+            break
+          }
+          source = source.$parent;
         }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(("Injection \"" + key + "\" not found"), vm);
+        if (!source) {
+          if ('default' in inject[key]) {
+            var provideDefault = inject[key].default;
+            result[key] = typeof provideDefault === 'function'
+              ? provideDefault.call(vm)
+              : provideDefault;
+          } else {
+            warn(("Injection \"" + key + "\" not found"), vm);
+          }
         }
       }
+      return result
     }
-    return result
   }
-}
 
-/*  */
+  /*  */
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
+  /**
+   * Runtime helper for rendering v-for lists.
+   */
+  function renderList (
+    val,
+    render
+  ) {
+    var ret, i, l, keys, key;
+    if (Array.isArray(val) || typeof val === 'string') {
+      ret = new Array(val.length);
+      for (i = 0, l = val.length; i < l; i++) {
+        ret[i] = render(val[i], i);
+      }
+    } else if (typeof val === 'number') {
+      ret = new Array(val);
+      for (i = 0; i < val; i++) {
+        ret[i] = render(i + 1, i);
+      }
+    } else if (isObject(val)) {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
     }
+    if (isDef(ret)) {
+      (ret)._isVList = true;
+    }
+    return ret
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
 
-/*  */
+  /*  */
 
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if ("development" !== 'production' && !isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
+  /**
+   * Runtime helper for rendering <slot>
+   */
+  function renderSlot (
+    name,
+    fallback,
+    props,
+    bindObject
+  ) {
+    var scopedSlotFn = this.$scopedSlots[name];
+    var nodes;
+    if (scopedSlotFn) { // scoped slot
+      props = props || {};
+      if (bindObject) {
+        if (!isObject(bindObject)) {
+          warn(
+            'slot v-bind without argument expects an Object',
+            this
+          );
+        }
+        props = extend(extend({}, bindObject), props);
       }
-      props = extend(extend({}, bindObject), props);
+      nodes = scopedSlotFn(props) || fallback;
+    } else {
+      nodes = this.$slots[name] || fallback;
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
+
+    var target = props && props.slot;
+    if (target) {
+      return this.$createElement('template', { slot: target }, nodes)
+    } else {
+      return nodes
     }
-    nodes = slotNodes || fallback;
   }
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
+  /*  */
 
-/*  */
+  /**
+   * Runtime helper for resolving filters
+   */
+  function resolveFilter (id) {
+    return resolveAsset(this.$options, 'filters', id, true) || identity
+  }
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+  /*  */
 
-/*  */
+  function isKeyNotMatch (expect, actual) {
+    if (Array.isArray(expect)) {
+      return expect.indexOf(actual) === -1
+    } else {
+      return expect !== actual
+    }
+  }
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
+  /**
+   * Runtime helper for checking keyCodes from config.
+   * exposed as Vue.prototype._k
+   * passing in eventKeyName as last argument separately for backwards compat
+   */
+  function checkKeyCodes (
+    eventKeyCode,
+    key,
+    builtInKeyCode,
+    eventKeyName,
+    builtInKeyName
+  ) {
+    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+      return isKeyNotMatch(builtInKeyName, eventKeyName)
+    } else if (mappedKeyCode) {
+      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+    } else if (eventKeyName) {
+      return hyphenate(eventKeyName) !== key
+    }
   }
-}
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      "development" !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
+  /*  */
+
+  /**
+   * Runtime helper for merging v-bind="object" into a VNode's data.
+   */
+  function bindObjectProps (
+    data,
+    tag,
+    value,
+    asProp,
+    isSync
+  ) {
+    if (value) {
+      if (!isObject(value)) {
+        warn(
+          'v-bind without argument expects an Object or Array value',
+          this
+        );
+      } else {
+        if (Array.isArray(value)) {
+          value = toObject(value);
         }
-      };
+        var hash;
+        var loop = function ( key ) {
+          if (
+            key === 'class' ||
+            key === 'style' ||
+            isReservedAttribute(key)
+          ) {
+            hash = data;
+          } else {
+            var type = data.attrs && data.attrs.type;
+            hash = asProp || config.mustUseProp(tag, type, key)
+              ? data.domProps || (data.domProps = {})
+              : data.attrs || (data.attrs = {});
+          }
+          var camelizedKey = camelize(key);
+          if (!(key in hash) && !(camelizedKey in hash)) {
+            hash[key] = value[key];
+
+            if (isSync) {
+              var on = data.on || (data.on = {});
+              on[("update:" + camelizedKey)] = function ($event) {
+                value[key] = $event;
+              };
+            }
+          }
+        };
 
-      for (var key in value) loop( key );
+        for (var key in value) loop( key );
+      }
     }
+    return data
   }
-  return data
-}
 
-/*  */
+  /*  */
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
+  /**
+   * Runtime helper for rendering static trees.
+   */
+  function renderStatic (
+    index,
+    isInFor
+  ) {
+    var cached = this._staticTrees || (this._staticTrees = []);
+    var tree = cached[index];
+    // if has already-rendered static tree and not inside v-for,
+    // we can reuse the same tree.
+    if (tree && !isInFor) {
+      return tree
+    }
+    // otherwise, render a fresh tree.
+    tree = cached[index] = this.$options.staticRenderFns[index].call(
+      this._renderProxy,
+      null,
+      this // for render fns generated for functional component templates
+    );
+    markStatic(tree, ("__static__" + index), false);
     return tree
   }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
+  /**
+   * Runtime helper for v-once.
+   * Effectively it means marking the node as static with a unique key.
+   */
+  function markOnce (
+    tree,
+    index,
+    key
+  ) {
+    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+    return tree
+  }
+
+  function markStatic (
+    tree,
+    key,
+    isOnce
+  ) {
+    if (Array.isArray(tree)) {
+      for (var i = 0; i < tree.length; i++) {
+        if (tree[i] && typeof tree[i] !== 'string') {
+          markStaticNode(tree[i], (key + "_" + i), isOnce);
+        }
       }
+    } else {
+      markStaticNode(tree, key, isOnce);
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
   }
-}
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
+  function markStaticNode (node, key, isOnce) {
+    node.isStatic = true;
+    node.key = key;
+    node.isOnce = isOnce;
+  }
 
-/*  */
+  /*  */
 
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      "development" !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
+  function bindObjectListeners (data, value) {
+    if (value) {
+      if (!isPlainObject(value)) {
+        warn(
+          'v-on without argument expects an Object value',
+          this
+        );
+      } else {
+        var on = data.on = data.on ? extend({}, data.on) : {};
+        for (var key in value) {
+          var existing = on[key];
+          var ours = value[key];
+          on[key] = existing ? [].concat(existing, ours) : ours;
+        }
       }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
+    return data
+  }
+
+  /*  */
+
+  function installRenderHelpers (target) {
+    target._o = markOnce;
+    target._n = toNumber;
+    target._s = toString;
+    target._l = renderList;
+    target._t = renderSlot;
+    target._q = looseEqual;
+    target._i = looseIndexOf;
+    target._m = renderStatic;
+    target._f = resolveFilter;
+    target._k = checkKeyCodes;
+    target._b = bindObjectProps;
+    target._v = createTextVNode;
+    target._e = createEmptyVNode;
+    target._u = resolveScopedSlots;
+    target._g = bindObjectListeners;
   }
 
-  var renderContext = new FunctionalRenderContext(
+  /*  */
+
+  function FunctionalRenderContext (
     data,
     props,
     children,
-    contextVm,
+    parent,
     Ctor
-  );
+  ) {
+    var options = Ctor.options;
+    // ensure the createElement function in functional components
+    // gets a unique context - this is necessary for correct named slot check
+    var contextVm;
+    if (hasOwn(parent, '_uid')) {
+      contextVm = Object.create(parent);
+      // $flow-disable-line
+      contextVm._original = parent;
+    } else {
+      // the context vm passed in is a functional context as well.
+      // in this case we want to make sure we are able to get a hold to the
+      // real context instance.
+      contextVm = parent;
+      // $flow-disable-line
+      parent = parent._original;
+    }
+    var isCompiled = isTrue(options._compiled);
+    var needNormalization = !isCompiled;
+
+    this.data = data;
+    this.props = props;
+    this.children = children;
+    this.parent = parent;
+    this.listeners = data.on || emptyObject;
+    this.injections = resolveInject(options.inject, parent);
+    this.slots = function () { return resolveSlots(children, parent); };
+
+    // support for compiled functional template
+    if (isCompiled) {
+      // exposing $options for renderStatic()
+      this.$options = options;
+      // pre-resolve slots for renderSlot()
+      this.$slots = this.slots();
+      this.$scopedSlots = data.scopedSlots || emptyObject;
+    }
+
+    if (options._scopeId) {
+      this._c = function (a, b, c, d) {
+        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+        if (vnode && !Array.isArray(vnode)) {
+          vnode.fnScopeId = options._scopeId;
+          vnode.fnContext = parent;
+        }
+        return vnode
+      };
+    } else {
+      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+    }
+  }
+
+  installRenderHelpers(FunctionalRenderContext.prototype);
+
+  function createFunctionalComponent (
+    Ctor,
+    propsData,
+    data,
+    contextVm,
+    children
+  ) {
+    var options = Ctor.options;
+    var props = {};
+    var propOptions = options.props;
+    if (isDef(propOptions)) {
+      for (var key in propOptions) {
+        props[key] = validateProp(key, propOptions, propsData || emptyObject);
+      }
+    } else {
+      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+      if (isDef(data.props)) { mergeProps(props, data.props); }
+    }
+
+    var renderContext = new FunctionalRenderContext(
+      data,
+      props,
+      children,
+      contextVm,
+      Ctor
+    );
 
-  var vnode = options.render.call(null, renderContext._c, renderContext);
+    var vnode = options.render.call(null, renderContext._c, renderContext);
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+    if (vnode instanceof VNode) {
+      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+    } else if (Array.isArray(vnode)) {
+      var vnodes = normalizeChildren(vnode) || [];
+      var res = new Array(vnodes.length);
+      for (var i = 0; i < vnodes.length; i++) {
+        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+      }
+      return res
     }
-    return res
   }
-}
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
+  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+    // #7817 clone node before setting fnContext, otherwise if the node is reused
+    // (e.g. it was from a cached normal slot) the fnContext causes named slots
+    // that should not be matched to match.
+    var clone = cloneVNode(vnode);
+    clone.fnContext = contextVm;
+    clone.fnOptions = options;
+    {
+      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+    }
+    if (data.slot) {
+      (clone.data || (clone.data = {})).slot = data.slot;
+    }
+    return clone
   }
-  return clone
-}
 
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+  function mergeProps (to, from) {
+    for (var key in from) {
+      to[camelize(key)] = from[key];
+    }
   }
-}
 
-/*  */
+  /*  */
 
+  /*  */
 
+  /*  */
 
+  /*  */
 
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
+  // inline hooks to be invoked on component VNodes during patch
+  var componentVNodeHooks = {
+    init: function init (vnode, hydrating) {
+      if (
+        vnode.componentInstance &&
+        !vnode.componentInstance._isDestroyed &&
+        vnode.data.keepAlive
+      ) {
+        // kept-alive components, treat as a patch
+        var mountedNode = vnode; // work around flow
+        componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      } else {
+        var child = vnode.componentInstance = createComponentInstanceForVnode(
+          vnode,
+          activeInstance
+        );
+        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+      }
+    },
 
+    prepatch: function prepatch (oldVnode, vnode) {
+      var options = vnode.componentOptions;
+      var child = vnode.componentInstance = oldVnode.componentInstance;
+      updateChildComponent(
+        child,
+        options.propsData, // updated props
+        options.listeners, // updated listeners
+        vnode, // new parent vnode
+        options.children // new children
+      );
+    },
 
-// Updates the state of the component to weex native render engine.
+    insert: function insert (vnode) {
+      var context = vnode.context;
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isMounted) {
+        componentInstance._isMounted = true;
+        callHook(componentInstance, 'mounted');
+      }
+      if (vnode.data.keepAlive) {
+        if (context._isMounted) {
+          // vue-router#1212
+          // During updates, a kept-alive component's child components may
+          // change, so directly walking the tree here may call activated hooks
+          // on incorrect children. Instead we push them into a queue which will
+          // be processed after the whole patch process ended.
+          queueActivatedComponent(componentInstance);
+        } else {
+          activateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    },
 
-/*  */
+    destroy: function destroy (vnode) {
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isDestroyed) {
+        if (!vnode.data.keepAlive) {
+          componentInstance.$destroy();
+        } else {
+          deactivateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    }
+  };
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  var hooksToMerge = Object.keys(componentVNodeHooks);
 
-// listening on native callback
+  function createComponent (
+    Ctor,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    if (isUndef(Ctor)) {
+      return
+    }
 
-/*  */
+    var baseCtor = context.$options._base;
 
-/*  */
+    // plain options object: turn it into a constructor
+    if (isObject(Ctor)) {
+      Ctor = baseCtor.extend(Ctor);
+    }
 
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
+    // if at this stage it's not a constructor or an async component factory,
+    // reject.
+    if (typeof Ctor !== 'function') {
+      {
+        warn(("Invalid Component definition: " + (String(Ctor))), context);
       }
+      return
     }
-  },
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
+    // async component
+    var asyncFactory;
+    if (isUndef(Ctor.cid)) {
+      asyncFactory = Ctor;
+      Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+      if (Ctor === undefined) {
+        // return a placeholder node for async component, which is rendered
+        // as a comment node but preserves all the raw information for the node.
+        // the information will be used for async server-rendering and hydration.
+        return createAsyncPlaceholder(
+          asyncFactory,
+          data,
+          context,
+          children,
+          tag
+        )
       }
     }
-  }
-};
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
+    data = data || {};
 
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
+    // resolve constructor options in case global mixins are applied after
+    // component constructor creation
+    resolveConstructorOptions(Ctor);
 
-  var baseCtor = context.$options._base;
+    // transform component v-model data into props & events
+    if (isDef(data.model)) {
+      transformModel(Ctor.options, data);
+    }
 
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
+    // extract props
+    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+    // functional component
+    if (isTrue(Ctor.options.functional)) {
+      return createFunctionalComponent(Ctor, propsData, data, context, children)
     }
-  }
 
-  data = data || {};
+    // extract listeners, since these needs to be treated as
+    // child component listeners instead of DOM listeners
+    var listeners = data.on;
+    // replace with listeners with .native modifier
+    // so it gets processed during parent component patch.
+    data.on = data.nativeOn;
 
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
+    if (isTrue(Ctor.options.abstract)) {
+      // abstract components do not keep anything
+      // other than props & listeners & slot
 
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
+      // work around flow
+      var slot = data.slot;
+      data = {};
+      if (slot) {
+        data.slot = slot;
+      }
+    }
+
+    // install component management hooks onto the placeholder node
+    installComponentHooks(data);
 
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+    // return a placeholder vnode
+    var name = Ctor.options.name || tag;
+    var vnode = new VNode(
+      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+      data, undefined, undefined, undefined, context,
+      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+      asyncFactory
+    );
 
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
+    return vnode
   }
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
+  function createComponentInstanceForVnode (
+    vnode, // we know it's MountedComponentVNode but flow doesn't
+    parent // activeInstance in lifecycle state
+  ) {
+    var options = {
+      _isComponent: true,
+      _parentVnode: vnode,
+      parent: parent
+    };
+    // check inline-template render functions
+    var inlineTemplate = vnode.data.inlineTemplate;
+    if (isDef(inlineTemplate)) {
+      options.render = inlineTemplate.render;
+      options.staticRenderFns = inlineTemplate.staticRenderFns;
+    }
+    return new vnode.componentOptions.Ctor(options)
+  }
 
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
+  function installComponentHooks (data) {
+    var hooks = data.hook || (data.hook = {});
+    for (var i = 0; i < hooksToMerge.length; i++) {
+      var key = hooksToMerge[i];
+      var existing = hooks[key];
+      var toMerge = componentVNodeHooks[key];
+      if (existing !== toMerge && !(existing && existing._merged)) {
+        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+      }
+    }
+  }
 
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+  function mergeHook$1 (f1, f2) {
+    var merged = function (a, b) {
+      // flow complains about extra args which is why we use any
+      f1(a, b);
+      f2(a, b);
+    };
+    merged._merged = true;
+    return merged
+  }
+
+  // transform component v-model info (value and callback) into
+  // prop and event handler respectively.
+  function transformModel (options, data) {
+    var prop = (options.model && options.model.prop) || 'value';
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.props || (data.props = {}))[prop] = data.model.value;
+    var on = data.on || (data.on = {});
+    var existing = on[event];
+    var callback = data.model.callback;
+    if (isDef(existing)) {
+      if (
+        Array.isArray(existing)
+          ? existing.indexOf(callback) === -1
+          : existing !== callback
+      ) {
+        on[event] = [callback].concat(existing);
+      }
+    } else {
+      on[event] = callback;
     }
   }
 
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
+  /*  */
 
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
+  var SIMPLE_NORMALIZE = 1;
+  var ALWAYS_NORMALIZE = 2;
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    "development" !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
+  // wrapper function for providing a more flexible interface
+  // without getting yelled at by flow
+  function createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType,
+    alwaysNormalize
+  ) {
+    if (Array.isArray(data) || isPrimitive(data)) {
+      normalizationType = children;
+      children = data;
+      data = undefined;
+    }
+    if (isTrue(alwaysNormalize)) {
+      normalizationType = ALWAYS_NORMALIZE;
+    }
+    return _createElement(context, tag, data, children, normalizationType)
   }
-  // warn against non-primitive key
-  if ("development" !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+
+  function _createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType
   ) {
-    {
+    if (isDef(data) && isDef((data).__ob__)) {
       warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
+        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+        'Always create fresh vnode data objects in each render!',
         context
       );
+      return createEmptyVNode()
     }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
+    // object syntax in v-bind
+    if (isDef(data) && isDef(data.is)) {
+      tag = data.is;
+    }
+    if (!tag) {
+      // in case of component :is set to falsy value
+      return createEmptyVNode()
+    }
+    // warn against non-primitive key
+    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+    ) {
+      {
+        warn(
+          'Avoid using non-primitive value as key, ' +
+          'use string/number value instead.',
+          context
+        );
+      }
+    }
+    // support single function children as default scoped slot
+    if (Array.isArray(children) &&
+      typeof children[0] === 'function'
+    ) {
+      data = data || {};
+      data.scopedSlots = { default: children[0] };
+      children.length = 0;
+    }
+    if (normalizationType === ALWAYS_NORMALIZE) {
+      children = normalizeChildren(children);
+    } else if (normalizationType === SIMPLE_NORMALIZE) {
+      children = simpleNormalizeChildren(children);
+    }
+    var vnode, ns;
+    if (typeof tag === 'string') {
+      var Ctor;
+      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+      if (config.isReservedTag(tag)) {
+        // platform built-in elements
+        vnode = new VNode(
+          config.parsePlatformTagName(tag), data, children,
+          undefined, undefined, context
+        );
+      } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+        // component
+        vnode = createComponent(Ctor, data, context, children, tag);
+      } else {
+        // unknown or unlisted namespaced elements
+        // check at runtime because it may get assigned a namespace when its
+        // parent normalizes children
+        vnode = new VNode(
+          tag, data, children,
+          undefined, undefined, context
+        );
+      }
     } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
+      // direct component options / constructor
+      vnode = createComponent(tag, data, context, children);
+    }
+    if (Array.isArray(vnode)) {
+      return vnode
+    } else if (isDef(vnode)) {
+      if (isDef(ns)) { applyNS(vnode, ns); }
+      if (isDef(data)) { registerDeepBindings(data); }
+      return vnode
+    } else {
+      return createEmptyVNode()
     }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
   }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
+
+  function applyNS (vnode, ns, force) {
+    vnode.ns = ns;
+    if (vnode.tag === 'foreignObject') {
+      // use default namespace inside foreignObject
+      ns = undefined;
+      force = true;
+    }
+    if (isDef(vnode.children)) {
+      for (var i = 0, l = vnode.children.length; i < l; i++) {
+        var child = vnode.children[i];
+        if (isDef(child.tag) && (
+          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+          applyNS(child, ns, force);
+        }
+      }
+    }
   }
-}
 
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
+  // ref #5318
+  // necessary to ensure parent re-render when deep bindings like :style and
+  // :class are used on slot nodes
+  function registerDeepBindings (data) {
+    if (isObject(data.style)) {
+      traverse(data.style);
+    }
+    if (isObject(data.class)) {
+      traverse(data.class);
+    }
+  }
 
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
+  /*  */
 
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
+  function initRender (vm) {
+    vm._vnode = null; // the root of the child tree
+    vm._staticTrees = null; // v-once cached trees
+    var options = vm.$options;
+    var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+    var renderContext = parentVnode && parentVnode.context;
+    vm.$slots = resolveSlots(options._renderChildren, renderContext);
+    vm.$scopedSlots = emptyObject;
+    // bind the createElement fn to this instance
+    // so that we get proper render context inside it.
+    // args order: tag, data, children, normalizationType, alwaysNormalize
+    // internal version is used by render functions compiled from templates
+    vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+    // normalization is always applied for the public version, used in
+    // user-written render functions.
+    vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
 
-    // reset _rendered flag on slots for duplicate slot check
+    // $attrs & $listeners are exposed for easier HOC creation.
+    // they need to be reactive so that HOCs using them are always updated
+    var parentData = parentVnode && parentVnode.data;
+
+    /* istanbul ignore else */
     {
-      for (var key in vm.$slots) {
-        // $flow-disable-line
-        vm.$slots[key]._rendered = false;
-      }
+      defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+      }, true);
+      defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+      }, true);
     }
+  }
 
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    }
+  function renderMixin (Vue) {
+    // install runtime convenience helpers
+    installRenderHelpers(Vue.prototype);
 
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      {
+    Vue.prototype.$nextTick = function (fn) {
+      return nextTick(fn, this)
+    };
+
+    Vue.prototype._render = function () {
+      var vm = this;
+      var ref = vm.$options;
+      var render = ref.render;
+      var _parentVnode = ref._parentVnode;
+
+      if (_parentVnode) {
+        vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+      }
+
+      // set parent vnode. this allows render functions to have access
+      // to the data on the placeholder node.
+      vm.$vnode = _parentVnode;
+      // render self
+      var vnode;
+      try {
+        vnode = render.call(vm._renderProxy, vm.$createElement);
+      } catch (e) {
+        handleError(e, vm, "render");
+        // return error render result,
+        // or previous vnode to prevent render error causing blank component
+        /* istanbul ignore else */
         if (vm.$options.renderError) {
           try {
             vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
@@ -4571,3481 +4633,3458 @@ function renderMixin (Vue) {
           vnode = vm._vnode;
         }
       }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if ("development" !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
+      // return empty vnode in case the render function errored out
+      if (!(vnode instanceof VNode)) {
+        if (Array.isArray(vnode)) {
+          warn(
+            'Multiple root nodes returned from render function. Render function ' +
+            'should return a single root node.',
+            vm
+          );
+        }
+        vnode = createEmptyVNode();
+      }
+      // set parent
+      vnode.parent = _parentVnode;
+      return vnode
+    };
+  }
+
+  /*  */
+
+  var uid$3 = 0;
+
+  function initMixin (Vue) {
+    Vue.prototype._init = function (options) {
+      var vm = this;
+      // a uid
+      vm._uid = uid$3++;
+
+      var startTag, endTag;
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        startTag = "vue-perf-start:" + (vm._uid);
+        endTag = "vue-perf-end:" + (vm._uid);
+        mark(startTag);
+      }
+
+      // a flag to avoid this being observed
+      vm._isVue = true;
+      // merge options
+      if (options && options._isComponent) {
+        // optimize internal component instantiation
+        // since dynamic options merging is pretty slow, and none of the
+        // internal component options needs special treatment.
+        initInternalComponent(vm, options);
+      } else {
+        vm.$options = mergeOptions(
+          resolveConstructorOptions(vm.constructor),
+          options || {},
           vm
         );
       }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
+      /* istanbul ignore else */
+      {
+        initProxy(vm);
+      }
+      // expose real self
+      vm._self = vm;
+      initLifecycle(vm);
+      initEvents(vm);
+      initRender(vm);
+      callHook(vm, 'beforeCreate');
+      initInjections(vm); // resolve injections before data/props
+      initState(vm);
+      initProvide(vm); // resolve provide after data/props
+      callHook(vm, 'created');
 
-var uid$3 = 0;
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        vm._name = formatComponentName(vm, false);
+        mark(endTag);
+        measure(("vue " + (vm._name) + " init"), startTag, endTag);
+      }
 
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
+      if (vm.$options.el) {
+        vm.$mount(vm.$options.el);
+      }
+    };
+  }
 
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if ("development" !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
+  function initInternalComponent (vm, options) {
+    var opts = vm.$options = Object.create(vm.constructor.options);
+    // doing this because it's faster than dynamic enumeration.
+    var parentVnode = options._parentVnode;
+    opts.parent = options.parent;
+    opts._parentVnode = parentVnode;
+
+    var vnodeComponentOptions = parentVnode.componentOptions;
+    opts.propsData = vnodeComponentOptions.propsData;
+    opts._parentListeners = vnodeComponentOptions.listeners;
+    opts._renderChildren = vnodeComponentOptions.children;
+    opts._componentTag = vnodeComponentOptions.tag;
+
+    if (options.render) {
+      opts.render = options.render;
+      opts.staticRenderFns = options.staticRenderFns;
+    }
+  }
+
+  function resolveConstructorOptions (Ctor) {
+    var options = Ctor.options;
+    if (Ctor.super) {
+      var superOptions = resolveConstructorOptions(Ctor.super);
+      var cachedSuperOptions = Ctor.superOptions;
+      if (superOptions !== cachedSuperOptions) {
+        // super option changed,
+        // need to resolve new options.
+        Ctor.superOptions = superOptions;
+        // check if there are any late-modified/attached options (#4976)
+        var modifiedOptions = resolveModifiedOptions(Ctor);
+        // update base extend options
+        if (modifiedOptions) {
+          extend(Ctor.extendOptions, modifiedOptions);
+        }
+        options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+        if (options.name) {
+          options.components[options.name] = Ctor;
+        }
+      }
     }
-    /* istanbul ignore else */
-    {
-      initProxy(vm);
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
+    return options
+  }
 
-    /* istanbul ignore if */
-    if ("development" !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
+  function resolveModifiedOptions (Ctor) {
+    var modified;
+    var latest = Ctor.options;
+    var extended = Ctor.extendOptions;
+    var sealed = Ctor.sealedOptions;
+    for (var key in latest) {
+      if (latest[key] !== sealed[key]) {
+        if (!modified) { modified = {}; }
+        modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      }
     }
+    return modified
+  }
 
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified
-}
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
+  function dedupe (latest, extended, sealed) {
+    // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+    // between merges
+    if (Array.isArray(latest)) {
+      var res = [];
+      sealed = Array.isArray(sealed) ? sealed : [sealed];
+      extended = Array.isArray(extended) ? extended : [extended];
+      for (var i = 0; i < latest.length; i++) {
+        // push original options and not sealed options to exclude duplicated options
+        if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+          res.push(latest[i]);
+        }
       }
+      return res
+    } else {
+      return latest
     }
-    return res
-  } else {
-    return latest
   }
-}
 
-function Vue (options) {
-  if ("development" !== 'production' &&
-    !(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
+  function Vue (options) {
+    if (!(this instanceof Vue)
+    ) {
+      warn('Vue is a constructor and should be called with the `new` keyword');
+    }
+    this._init(options);
   }
-  this._init(options);
-}
 
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
+  initMixin(Vue);
+  stateMixin(Vue);
+  eventsMixin(Vue);
+  lifecycleMixin(Vue);
+  renderMixin(Vue);
+
+  /*  */
 
-/*  */
+  function initUse (Vue) {
+    Vue.use = function (plugin) {
+      var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+      if (installedPlugins.indexOf(plugin) > -1) {
+        return this
+      }
 
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
+      // additional parameters
+      var args = toArray(arguments, 1);
+      args.unshift(this);
+      if (typeof plugin.install === 'function') {
+        plugin.install.apply(plugin, args);
+      } else if (typeof plugin === 'function') {
+        plugin.apply(null, args);
+      }
+      installedPlugins.push(plugin);
       return this
-    }
+    };
+  }
 
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
+  /*  */
 
-/*  */
+  function initMixin$1 (Vue) {
+    Vue.mixin = function (mixin) {
+      this.options = mergeOptions(this.options, mixin);
+      return this
+    };
+  }
 
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
+  /*  */
 
-/*  */
+  function initExtend (Vue) {
+    /**
+     * Each instance constructor, including Vue, has a unique
+     * cid. This enables us to create wrapped "child
+     * constructors" for prototypal inheritance and cache them.
+     */
+    Vue.cid = 0;
+    var cid = 1;
 
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
+    /**
+     * Class inheritance
+     */
+    Vue.extend = function (extendOptions) {
+      extendOptions = extendOptions || {};
+      var Super = this;
+      var SuperId = Super.cid;
+      var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+      if (cachedCtors[SuperId]) {
+        return cachedCtors[SuperId]
+      }
 
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
+      var name = extendOptions.name || Super.options.name;
+      if (name) {
+        validateComponentName(name);
+      }
 
-    var name = extendOptions.name || Super.options.name;
-    if ("development" !== 'production' && name) {
-      validateComponentName(name);
-    }
+      var Sub = function VueComponent (options) {
+        this._init(options);
+      };
+      Sub.prototype = Object.create(Super.prototype);
+      Sub.prototype.constructor = Sub;
+      Sub.cid = cid++;
+      Sub.options = mergeOptions(
+        Super.options,
+        extendOptions
+      );
+      Sub['super'] = Super;
+
+      // For props and computed properties, we define the proxy getters on
+      // the Vue instances at extension time, on the extended prototype. This
+      // avoids Object.defineProperty calls for each instance created.
+      if (Sub.options.props) {
+        initProps$1(Sub);
+      }
+      if (Sub.options.computed) {
+        initComputed$1(Sub);
+      }
+
+      // allow further extension/mixin/plugin usage
+      Sub.extend = Super.extend;
+      Sub.mixin = Super.mixin;
+      Sub.use = Super.use;
+
+      // create asset registers, so extended classes
+      // can have their private assets too.
+      ASSET_TYPES.forEach(function (type) {
+        Sub[type] = Super[type];
+      });
+      // enable recursive self-lookup
+      if (name) {
+        Sub.options.components[name] = Sub;
+      }
+
+      // keep a reference to the super options at extension time.
+      // later at instantiation we can check if Super's options have
+      // been updated.
+      Sub.superOptions = Super.options;
+      Sub.extendOptions = extendOptions;
+      Sub.sealedOptions = extend({}, Sub.options);
 
-    var Sub = function VueComponent (options) {
-      this._init(options);
+      // cache constructor
+      cachedCtors[SuperId] = Sub;
+      return Sub
     };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
+  }
 
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
+  function initProps$1 (Comp) {
+    var props = Comp.options.props;
+    for (var key in props) {
+      proxy(Comp.prototype, "_props", key);
     }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
+  }
+
+  function initComputed$1 (Comp) {
+    var computed = Comp.options.computed;
+    for (var key in computed) {
+      defineComputed(Comp.prototype, key, computed[key]);
     }
+  }
 
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
+  /*  */
 
-    // create asset registers, so extended classes
-    // can have their private assets too.
+  function initAssetRegisters (Vue) {
+    /**
+     * Create asset registration methods.
+     */
     ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
+      Vue[type] = function (
+        id,
+        definition
+      ) {
+        if (!definition) {
+          return this.options[type + 's'][id]
+        } else {
+          /* istanbul ignore if */
+          if (type === 'component') {
+            validateComponentName(id);
+          }
+          if (type === 'component' && isPlainObject(definition)) {
+            definition.name = definition.name || id;
+            definition = this.options._base.extend(definition);
+          }
+          if (type === 'directive' && typeof definition === 'function') {
+            definition = { bind: definition, update: definition };
+          }
+          this.options[type + 's'][id] = definition;
+          return definition
+        }
+      };
     });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
+  }
 
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
+  /*  */
 
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
 
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
 
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
+  function getComponentName (opts) {
+    return opts && (opts.Ctor.options.name || opts.tag)
   }
-}
 
-/*  */
+  function matches (pattern, name) {
+    if (Array.isArray(pattern)) {
+      return pattern.indexOf(name) > -1
+    } else if (typeof pattern === 'string') {
+      return pattern.split(',').indexOf(name) > -1
+    } else if (isRegExp(pattern)) {
+      return pattern.test(name)
+    }
+    /* istanbul ignore next */
+    return false
+  }
 
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if ("development" !== 'production' && type === 'component') {
-          validateComponentName(id);
+  function pruneCache (keepAliveInstance, filter) {
+    var cache = keepAliveInstance.cache;
+    var keys = keepAliveInstance.keys;
+    var _vnode = keepAliveInstance._vnode;
+    for (var key in cache) {
+      var cachedNode = cache[key];
+      if (cachedNode) {
+        var name = getComponentName(cachedNode.componentOptions);
+        if (name && !filter(name)) {
+          pruneCacheEntry(cache, key, keys, _vnode);
         }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
+      }
+    }
+  }
+
+  function pruneCacheEntry (
+    cache,
+    key,
+    keys,
+    current
+  ) {
+    var cached$$1 = cache[key];
+    if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+      cached$$1.componentInstance.$destroy();
+    }
+    cache[key] = null;
+    remove(keys, key);
+  }
+
+  var patternTypes = [String, RegExp, Array];
+
+  var KeepAlive = {
+    name: 'keep-alive',
+    abstract: true,
+
+    props: {
+      include: patternTypes,
+      exclude: patternTypes,
+      max: [String, Number]
+    },
+
+    created: function created () {
+      this.cache = Object.create(null);
+      this.keys = [];
+    },
+
+    destroyed: function destroyed () {
+      for (var key in this.cache) {
+        pruneCacheEntry(this.cache, key, this.keys);
+      }
+    },
+
+    mounted: function mounted () {
+      var this$1 = this;
+
+      this.$watch('include', function (val) {
+        pruneCache(this$1, function (name) { return matches(val, name); });
+      });
+      this.$watch('exclude', function (val) {
+        pruneCache(this$1, function (name) { return !matches(val, name); });
+      });
+    },
+
+    render: function render () {
+      var slot = this.$slots.default;
+      var vnode = getFirstComponentChild(slot);
+      var componentOptions = vnode && vnode.componentOptions;
+      if (componentOptions) {
+        // check pattern
+        var name = getComponentName(componentOptions);
+        var ref = this;
+        var include = ref.include;
+        var exclude = ref.exclude;
+        if (
+          // not included
+          (include && (!name || !matches(include, name))) ||
+          // excluded
+          (exclude && name && matches(exclude, name))
+        ) {
+          return vnode
         }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
+
+        var ref$1 = this;
+        var cache = ref$1.cache;
+        var keys = ref$1.keys;
+        var key = vnode.key == null
+          // same constructor may get registered as different local components
+          // so cid alone is not enough (#3269)
+          ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+          : vnode.key;
+        if (cache[key]) {
+          vnode.componentInstance = cache[key].componentInstance;
+          // make current key freshest
+          remove(keys, key);
+          keys.push(key);
+        } else {
+          cache[key] = vnode;
+          keys.push(key);
+          // prune oldest entry
+          if (this.max && keys.length > parseInt(this.max)) {
+            pruneCacheEntry(cache, keys[0], keys, this._vnode);
+          }
         }
-        this.options[type + 's'][id] = definition;
-        return definition
+
+        vnode.data.keepAlive = true;
       }
+      return vnode || (slot && slot[0])
+    }
+  };
+
+  var builtInComponents = {
+    KeepAlive: KeepAlive
+  };
+
+  /*  */
+
+  function initGlobalAPI (Vue) {
+    // config
+    var configDef = {};
+    configDef.get = function () { return config; };
+    {
+      configDef.set = function () {
+        warn(
+          'Do not replace the Vue.config object, set individual fields instead.'
+        );
+      };
+    }
+    Object.defineProperty(Vue, 'config', configDef);
+
+    // exposed util methods.
+    // NOTE: these are not considered part of the public API - avoid relying on
+    // them unless you are aware of the risk.
+    Vue.util = {
+      warn: warn,
+      extend: extend,
+      mergeOptions: mergeOptions,
+      defineReactive: defineReactive$$1
     };
-  });
-}
 
-/*  */
+    Vue.set = set;
+    Vue.delete = del;
+    Vue.nextTick = nextTick;
 
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
+    Vue.options = Object.create(null);
+    ASSET_TYPES.forEach(function (type) {
+      Vue.options[type + 's'] = Object.create(null);
+    });
 
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
+    // this is used to identify the "base" constructor to extend all plain-object
+    // components with in Weex's multi-instance scenarios.
+    Vue.options._base = Vue;
 
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
+    extend(Vue.options.components, builtInComponents);
 
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
+    initUse(Vue);
+    initMixin$1(Vue);
+    initExtend(Vue);
+    initAssetRegisters(Vue);
   }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
 
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
+  initGlobalAPI(Vue);
 
-  destroyed: function destroyed () {
-    var this$1 = this;
+  Object.defineProperty(Vue.prototype, '$isServer', {
+    get: isServerRendering
+  });
 
-    for (var key in this$1.cache) {
-      pruneCacheEntry(this$1.cache, key, this$1.keys);
+  Object.defineProperty(Vue.prototype, '$ssrContext', {
+    get: function get () {
+      /* istanbul ignore next */
+      return this.$vnode && this.$vnode.ssrContext
     }
-  },
+  });
 
-  mounted: function mounted () {
-    var this$1 = this;
+  // expose FunctionalRenderContext for ssr runtime helper installation
+  Object.defineProperty(Vue, 'FunctionalRenderContext', {
+    value: FunctionalRenderContext
+  });
 
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
+  Vue.version = '2.5.18-beta.0';
 
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
+  /*  */
 
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-}
+  // these are reserved for web because they are directly compiled away
+  // during template compilation
+  var isReservedAttr = makeMap('style,class');
 
-var builtInComponents = {
-  KeepAlive: KeepAlive
-}
+  // attributes that should be using props for binding
+  var acceptValue = makeMap('input,textarea,option,select,progress');
+  var mustUseProp = function (tag, type, attr) {
+    return (
+      (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+      (attr === 'selected' && tag === 'option') ||
+      (attr === 'checked' && tag === 'input') ||
+      (attr === 'muted' && tag === 'video')
+    )
+  };
 
-/*  */
+  var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
+  var isBooleanAttr = makeMap(
+    'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+    'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+    'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+    'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+    'required,reversed,scoped,seamless,selected,sortable,translate,' +
+    'truespeed,typemustmatch,visible'
+  );
 
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive
+  var xlinkNS = 'http://www.w3.org/1999/xlink';
+
+  var isXlink = function (name) {
+    return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
   };
 
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
+  var getXlinkProp = function (name) {
+    return isXlink(name) ? name.slice(6, name.length) : ''
+  };
 
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
+  var isFalsyAttrValue = function (val) {
+    return val == null || val === false
+  };
 
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
+  /*  */
 
-  extend(Vue.options.components, builtInComponents);
+  function genClassForVnode (vnode) {
+    var data = vnode.data;
+    var parentNode = vnode;
+    var childNode = vnode;
+    while (isDef(childNode.componentInstance)) {
+      childNode = childNode.componentInstance._vnode;
+      if (childNode && childNode.data) {
+        data = mergeClassData(childNode.data, data);
+      }
+    }
+    while (isDef(parentNode = parentNode.parent)) {
+      if (parentNode && parentNode.data) {
+        data = mergeClassData(data, parentNode.data);
+      }
+    }
+    return renderClass(data.staticClass, data.class)
+  }
 
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
+  function mergeClassData (child, parent) {
+    return {
+      staticClass: concat(child.staticClass, parent.staticClass),
+      class: isDef(child.class)
+        ? [child.class, parent.class]
+        : parent.class
+    }
+  }
 
-initGlobalAPI(Vue);
+  function renderClass (
+    staticClass,
+    dynamicClass
+  ) {
+    if (isDef(staticClass) || isDef(dynamicClass)) {
+      return concat(staticClass, stringifyClass(dynamicClass))
+    }
+    /* istanbul ignore next */
+    return ''
+  }
 
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
+  function concat (a, b) {
+    return a ? b ? (a + ' ' + b) : a : (b || '')
+  }
 
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
+  function stringifyClass (value) {
+    if (Array.isArray(value)) {
+      return stringifyArray(value)
+    }
+    if (isObject(value)) {
+      return stringifyObject(value)
+    }
+    if (typeof value === 'string') {
+      return value
+    }
     /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
+    return ''
   }
-});
 
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.17-beta.0';
+  function stringifyArray (value) {
+    var res = '';
+    var stringified;
+    for (var i = 0, l = value.length; i < l; i++) {
+      if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+        if (res) { res += ' '; }
+        res += stringified;
+      }
+    }
+    return res
+  }
 
-/*  */
+  function stringifyObject (value) {
+    var res = '';
+    for (var key in value) {
+      if (value[key]) {
+        if (res) { res += ' '; }
+        res += key;
+      }
+    }
+    return res
+  }
 
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
+  /*  */
 
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
+  var namespaceMap = {
+    svg: 'http://www.w3.org/2000/svg',
+    math: 'http://www.w3.org/1998/Math/MathML'
+  };
 
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+  var isHTMLTag = makeMap(
+    'html,body,base,head,link,meta,style,title,' +
+    'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+    'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+    'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+    's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+    'embed,object,param,source,canvas,script,noscript,del,ins,' +
+    'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+    'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+    'output,progress,select,textarea,' +
+    'details,dialog,menu,menuitem,summary,' +
+    'content,element,shadow,template,blockquote,iframe,tfoot'
+  );
 
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
+  // this map is intentionally selective, only covering SVG elements that may
+  // contain child elements.
+  var isSVG = makeMap(
+    'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+    'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+    'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+    true
+  );
 
-var xlinkNS = 'http://www.w3.org/1999/xlink';
+  var isReservedTag = function (tag) {
+    return isHTMLTag(tag) || isSVG(tag)
+  };
 
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
+  function getTagNamespace (tag) {
+    if (isSVG(tag)) {
+      return 'svg'
+    }
+    // basic support for MathML
+    // note it doesn't support other MathML elements being component roots
+    if (tag === 'math') {
+      return 'math'
+    }
+  }
 
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
+  var unknownElementCache = Object.create(null);
+  function isUnknownElement (tag) {
+    /* istanbul ignore if */
+    if (!inBrowser) {
+      return true
+    }
+    if (isReservedTag(tag)) {
+      return false
+    }
+    tag = tag.toLowerCase();
+    /* istanbul ignore if */
+    if (unknownElementCache[tag] != null) {
+      return unknownElementCache[tag]
+    }
+    var el = document.createElement(tag);
+    if (tag.indexOf('-') > -1) {
+      // http://stackoverflow.com/a/28210364/1070244
+      return (unknownElementCache[tag] = (
+        el.constructor === window.HTMLUnknownElement ||
+        el.constructor === window.HTMLElement
+      ))
+    } else {
+      return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+    }
+  }
 
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
+  var isTextInputType = makeMap('text,number,password,search,email,tel,url');
 
-/*  */
+  /*  */
 
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
+  /**
+   * Query an element selector if it's not an element already.
+   */
+  function query (el) {
+    if (typeof el === 'string') {
+      var selected = document.querySelector(el);
+      if (!selected) {
+        warn(
+          'Cannot find element: ' + el
+        );
+        return document.createElement('div')
+      }
+      return selected
+    } else {
+      return el
     }
   }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
+
+  /*  */
+
+  function createElement$1 (tagName, vnode) {
+    var elm = document.createElement(tagName);
+    if (tagName !== 'select') {
+      return elm
+    }
+    // false or null will remove the attribute but undefined will not
+    if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+      elm.setAttribute('multiple', 'multiple');
     }
+    return elm
   }
-  return renderClass(data.staticClass, data.class)
-}
 
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
+  function createElementNS (namespace, tagName) {
+    return document.createElementNS(namespaceMap[namespace], tagName)
   }
-}
 
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
+  function createTextNode (text) {
+    return document.createTextNode(text)
   }
-  /* istanbul ignore next */
-  return ''
-}
 
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
+  function createComment (text) {
+    return document.createComment(text)
   }
-  if (isObject(value)) {
-    return stringifyObject(value)
+
+  function insertBefore (parentNode, newNode, referenceNode) {
+    parentNode.insertBefore(newNode, referenceNode);
   }
-  if (typeof value === 'string') {
-    return value
+
+  function removeChild (node, child) {
+    node.removeChild(child);
   }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
+
+  function appendChild (node, child) {
+    node.appendChild(child);
   }
-  if (isReservedTag(tag)) {
-    return false
+
+  function parentNode (node) {
+    return node.parentNode
   }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+
+  function nextSibling (node) {
+    return node.nextSibling
   }
-}
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+  function tagName (node) {
+    return node.tagName
+  }
 
-/*  */
+  function setTextContent (node, text) {
+    node.textContent = text;
+  }
 
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      "development" !== 'production' && warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
+  function setStyleScope (node, scopeId) {
+    node.setAttribute(scopeId, '');
   }
-}
 
-/*  */
+  var nodeOps = /*#__PURE__*/Object.freeze({
+    createElement: createElement$1,
+    createElementNS: createElementNS,
+    createTextNode: createTextNode,
+    createComment: createComment,
+    insertBefore: insertBefore,
+    removeChild: removeChild,
+    appendChild: appendChild,
+    parentNode: parentNode,
+    nextSibling: nextSibling,
+    tagName: tagName,
+    setTextContent: setTextContent,
+    setStyleScope: setStyleScope
+  });
 
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
+  /*  */
+
+  var ref = {
+    create: function create (_, vnode) {
       registerRef(vnode);
+    },
+    update: function update (oldVnode, vnode) {
+      if (oldVnode.data.ref !== vnode.data.ref) {
+        registerRef(oldVnode, true);
+        registerRef(vnode);
+      }
+    },
+    destroy: function destroy (vnode) {
+      registerRef(vnode, true);
     }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-}
+  };
 
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
+  function registerRef (vnode, isRemoval) {
+    var key = vnode.data.ref;
+    if (!isDef(key)) { return }
 
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
+    var vm = vnode.context;
+    var ref = vnode.componentInstance || vnode.elm;
+    var refs = vm.$refs;
+    if (isRemoval) {
+      if (Array.isArray(refs[key])) {
+        remove(refs[key], ref);
+      } else if (refs[key] === ref) {
+        refs[key] = undefined;
       }
     } else {
-      refs[key] = ref;
+      if (vnode.data.refInFor) {
+        if (!Array.isArray(refs[key])) {
+          refs[key] = [ref];
+        } else if (refs[key].indexOf(ref) < 0) {
+          // $flow-disable-line
+          refs[key].push(ref);
+        }
+      } else {
+        refs[key] = ref;
+      }
     }
   }
-}
 
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
+  /**
+   * Virtual DOM patching algorithm based on Snabbdom by
+   * Simon Friis Vindum (@paldepind)
+   * Licensed under the MIT License
+   * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+   *
+   * modified by Evan You (@yyx990803)
+   *
+   * Not type-checking this because this file is perf-critical and the cost
+   * of making flow understand it is not worth it.
+   */
+
+  var emptyNode = new VNode('', {}, []);
 
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
+  var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+  function childrenIgnored (vnode) {
+    return vnode && vnode.data && vnode.data.domProps && (
+      vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+    )
+  }
+
+  function sameVnode (a, b) {
+    return (
+      a.key === b.key && (
+        (
+          a.tag === b.tag &&
+          a.isComment === b.isComment &&
+          isDef(a.data) === isDef(b.data) &&
+          !childrenIgnored(a) && !childrenIgnored(b) &&
+          sameInputType(a, b)
+        ) || (
+          isTrue(a.isAsyncPlaceholder) &&
+          a.asyncFactory === b.asyncFactory &&
+          isUndef(b.asyncFactory.error)
+        )
       )
     )
-  )
-}
+  }
 
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
+  function sameInputType (a, b) {
+    if (a.tag !== 'input') { return true }
+    var i;
+    var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+    var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+    return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+  }
 
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
+  function createKeyToOldIdx (children, beginIdx, endIdx) {
+    var i, key;
+    var map = {};
+    for (i = beginIdx; i <= endIdx; ++i) {
+      key = children[i].key;
+      if (isDef(key)) { map[key] = i; }
+    }
+    return map
   }
-  return map
-}
 
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
+  function createPatchFunction (backend) {
+    var i, j;
+    var cbs = {};
 
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
+    var modules = backend.modules;
+    var nodeOps = backend.nodeOps;
 
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
+    for (i = 0; i < hooks.length; ++i) {
+      cbs[hooks[i]] = [];
+      for (j = 0; j < modules.length; ++j) {
+        if (isDef(modules[j][hooks[i]])) {
+          cbs[hooks[i]].push(modules[j][hooks[i]]);
+        }
       }
     }
-  }
 
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
+    function emptyNodeAt (elm) {
+      return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+    }
 
-  function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
-        removeNode(childElm);
+    function createRmCb (childElm, listeners) {
+      function remove$$1 () {
+        if (--remove$$1.listeners === 0) {
+          removeNode(childElm);
+        }
       }
+      remove$$1.listeners = listeners;
+      return remove$$1
     }
-    remove.listeners = listeners;
-    return remove
-  }
 
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
+    function removeNode (el) {
+      var parent = nodeOps.parentNode(el);
+      // element may have already been removed due to v-html / v-text
+      if (isDef(parent)) {
+        nodeOps.removeChild(parent, el);
+      }
     }
-  }
 
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
+    function isUnknownElement$$1 (vnode, inVPre) {
+      return (
+        !inVPre &&
+        !vnode.ns &&
+        !(
+          config.ignoredElements.length &&
+          config.ignoredElements.some(function (ignore) {
+            return isRegExp(ignore)
+              ? ignore.test(vnode.tag)
+              : ignore === vnode.tag
+          })
+        ) &&
+        config.isUnknownElement(vnode.tag)
+      )
+    }
 
-  var creatingElmInVPre = 0;
+    var creatingElmInVPre = 0;
 
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
+    function createElm (
+      vnode,
+      insertedVnodeQueue,
+      parentElm,
+      refElm,
+      nested,
+      ownerArray,
+      index
+    ) {
+      if (isDef(vnode.elm) && isDef(ownerArray)) {
+        // This vnode was used in a previous render!
+        // now it's used as a new node, overwriting its elm would cause
+        // potential patch errors down the road when it's used as an insertion
+        // reference node. Instead, we clone the node on-demand before creating
+        // associated DOM element for it.
+        vnode = ownerArray[index] = cloneVNode(vnode);
+      }
 
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
+      vnode.isRootInsert = !nested; // for transition enter check
+      if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+        return
+      }
 
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
+      var data = vnode.data;
+      var children = vnode.children;
+      var tag = vnode.tag;
+      if (isDef(tag)) {
+        {
+          if (data && data.pre) {
+            creatingElmInVPre++;
+          }
+          if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+            warn(
+              'Unknown custom element: <' + tag + '> - did you ' +
+              'register the component correctly? For recursive components, ' +
+              'make sure to provide the "name" option.',
+              vnode.context
+            );
+          }
         }
-      }
 
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
+        vnode.elm = vnode.ns
+          ? nodeOps.createElementNS(vnode.ns, tag)
+          : nodeOps.createElement(tag, vnode);
+        setScope(vnode);
 
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
+        /* istanbul ignore if */
+        {
+          createChildren(vnode, children, insertedVnodeQueue);
+          if (isDef(data)) {
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+          }
+          insert(parentElm, vnode.elm, refElm);
         }
-        insert(parentElm, vnode.elm, refElm);
-      }
 
-      if ("development" !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
+        if (data && data.pre) {
+          creatingElmInVPre--;
+        }
+      } else if (isTrue(vnode.isComment)) {
+        vnode.elm = nodeOps.createComment(vnode.text);
+        insert(parentElm, vnode.elm, refElm);
+      } else {
+        vnode.elm = nodeOps.createTextNode(vnode.text);
+        insert(parentElm, vnode.elm, refElm);
       }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
     }
-  }
 
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+    function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+      var i = vnode.data;
+      if (isDef(i)) {
+        var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+        if (isDef(i = i.hook) && isDef(i = i.init)) {
+          i(vnode, false /* hydrating */);
+        }
+        // after calling the init hook, if the vnode is a child component
+        // it should've created a child instance and mounted it. the child
+        // component also has set the placeholder vnode's elm.
+        // in that case we can just return the element and be done.
+        if (isDef(vnode.componentInstance)) {
+          initComponent(vnode, insertedVnodeQueue);
+          insert(parentElm, vnode.elm, refElm);
+          if (isTrue(isReactivated)) {
+            reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+          }
+          return true
         }
-        return true
       }
     }
-  }
 
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
+    function initComponent (vnode, insertedVnodeQueue) {
+      if (isDef(vnode.data.pendingInsert)) {
+        insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+        vnode.data.pendingInsert = null;
+      }
+      vnode.elm = vnode.componentInstance.$el;
+      if (isPatchable(vnode)) {
+        invokeCreateHooks(vnode, insertedVnodeQueue);
+        setScope(vnode);
+      } else {
+        // empty component root.
+        // skip all element-related modules except for ref (#3455)
+        registerRef(vnode);
+        // make sure to invoke the insert hook
+        insertedVnodeQueue.push(vnode);
+      }
     }
-  }
 
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
+    function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+      var i;
+      // hack for #4339: a reactivated component with inner transition
+      // does not trigger because the inner node's created hooks are not called
+      // again. It's not ideal to involve module-specific logic in here but
+      // there doesn't seem to be a better way to do it.
+      var innerNode = vnode;
+      while (innerNode.componentInstance) {
+        innerNode = innerNode.componentInstance._vnode;
+        if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+          for (i = 0; i < cbs.activate.length; ++i) {
+            cbs.activate[i](emptyNode, innerNode);
+          }
+          insertedVnodeQueue.push(innerNode);
+          break
         }
-        insertedVnodeQueue.push(innerNode);
-        break
       }
+      // unlike a newly created component,
+      // a reactivated keep-alive component doesn't insert itself
+      insert(parentElm, vnode.elm, refElm);
     }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
 
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
+    function insert (parent, elm, ref$$1) {
+      if (isDef(parent)) {
+        if (isDef(ref$$1)) {
+          if (nodeOps.parentNode(ref$$1) === parent) {
+            nodeOps.insertBefore(parent, elm, ref$$1);
+          }
+        } else {
+          nodeOps.appendChild(parent, elm);
         }
-      } else {
-        nodeOps.appendChild(parent, elm);
       }
     }
-  }
 
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+    function createChildren (vnode, children, insertedVnodeQueue) {
+      if (Array.isArray(children)) {
+        {
+          checkDuplicateKeys(children);
+        }
+        for (var i = 0; i < children.length; ++i) {
+          createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+        }
+      } else if (isPrimitive(vnode.text)) {
+        nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
       }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
     }
-  }
 
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
+    function isPatchable (vnode) {
+      while (vnode.componentInstance) {
+        vnode = vnode.componentInstance._vnode;
+      }
+      return isDef(vnode.tag)
     }
-    return isDef(vnode.tag)
-  }
 
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+    function invokeCreateHooks (vnode, insertedVnodeQueue) {
+      for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+        cbs.create[i$1](emptyNode, vnode);
+      }
+      i = vnode.data.hook; // Reuse variable
+      if (isDef(i)) {
+        if (isDef(i.create)) { i.create(emptyNode, vnode); }
+        if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+      }
     }
-  }
 
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
+    // set scope id attribute for scoped CSS.
+    // this is implemented as a special case to avoid the overhead
+    // of going through the normal attribute patching process.
+    function setScope (vnode) {
+      var i;
+      if (isDef(i = vnode.fnScopeId)) {
+        nodeOps.setStyleScope(vnode.elm, i);
+      } else {
+        var ancestor = vnode;
+        while (ancestor) {
+          if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+            nodeOps.setStyleScope(vnode.elm, i);
+          }
+          ancestor = ancestor.parent;
         }
-        ancestor = ancestor.parent;
+      }
+      // for slot content they should also get the scopeId from the host instance.
+      if (isDef(i = activeInstance) &&
+        i !== vnode.context &&
+        i !== vnode.fnContext &&
+        isDef(i = i.$options._scopeId)
+      ) {
+        nodeOps.setStyleScope(vnode.elm, i);
       }
     }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
 
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
+    function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+      for (; startIdx <= endIdx; ++startIdx) {
+        createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
       }
     }
-  }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
+    function invokeDestroyHook (vnode) {
+      var i, j;
+      var data = vnode.data;
+      if (isDef(data)) {
+        if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+        for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+      }
+      if (isDef(i = vnode.children)) {
+        for (j = 0; j < vnode.children.length; ++j) {
+          invokeDestroyHook(vnode.children[j]);
         }
       }
     }
-  }
 
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
+    function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+      for (; startIdx <= endIdx; ++startIdx) {
+        var ch = vnodes[startIdx];
+        if (isDef(ch)) {
+          if (isDef(ch.tag)) {
+            removeAndInvokeRemoveHook(ch);
+            invokeDestroyHook(ch);
+          } else { // Text node
+            removeNode(ch.elm);
+          }
+        }
       }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
+    }
+
+    function removeAndInvokeRemoveHook (vnode, rm) {
+      if (isDef(rm) || isDef(vnode.data)) {
+        var i;
+        var listeners = cbs.remove.length + 1;
+        if (isDef(rm)) {
+          // we have a recursively passed down rm callback
+          // increase the listeners count
+          rm.listeners += listeners;
+        } else {
+          // directly removing
+          rm = createRmCb(vnode.elm, listeners);
+        }
+        // recursively invoke hooks on child component root node
+        if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+          removeAndInvokeRemoveHook(i, rm);
+        }
+        for (i = 0; i < cbs.remove.length; ++i) {
+          cbs.remove[i](vnode, rm);
+        }
+        if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+          i(vnode, rm);
+        } else {
+          rm();
+        }
       } else {
-        rm();
+        removeNode(vnode.elm);
       }
-    } else {
-      removeNode(vnode.elm);
     }
-  }
 
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+    function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+      var oldStartIdx = 0;
+      var newStartIdx = 0;
+      var oldEndIdx = oldCh.length - 1;
+      var oldStartVnode = oldCh[0];
+      var oldEndVnode = oldCh[oldEndIdx];
+      var newEndIdx = newCh.length - 1;
+      var newStartVnode = newCh[0];
+      var newEndVnode = newCh[newEndIdx];
+      var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
 
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
+      // removeOnly is a special flag used only by <transition-group>
+      // to ensure removed elements stay in correct relative positions
+      // during leaving transitions
+      var canMove = !removeOnly;
 
-    {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+      {
+        checkDuplicateKeys(newCh);
+      }
+
+      while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+        if (isUndef(oldStartVnode)) {
+          oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+        } else if (isUndef(oldEndVnode)) {
+          oldEndVnode = oldCh[--oldEndIdx];
+        } else if (sameVnode(oldStartVnode, newStartVnode)) {
+          patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+          oldStartVnode = oldCh[++oldStartIdx];
+          newStartVnode = newCh[++newStartIdx];
+        } else if (sameVnode(oldEndVnode, newEndVnode)) {
+          patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+          oldEndVnode = oldCh[--oldEndIdx];
+          newEndVnode = newCh[--newEndIdx];
+        } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+          patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+          canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+          oldStartVnode = oldCh[++oldStartIdx];
+          newEndVnode = newCh[--newEndIdx];
+        } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+          patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+          canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+          oldEndVnode = oldCh[--oldEndIdx];
+          newStartVnode = newCh[++newStartIdx];
         } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
+          if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+          idxInOld = isDef(newStartVnode.key)
+            ? oldKeyToIdx[newStartVnode.key]
+            : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+          if (isUndef(idxInOld)) { // New element
             createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          } else {
+            vnodeToMove = oldCh[idxInOld];
+            if (sameVnode(vnodeToMove, newStartVnode)) {
+              patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+              oldCh[idxInOld] = undefined;
+              canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+            } else {
+              // same key but different element. treat as new element
+              createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+            }
           }
+          newStartVnode = newCh[++newStartIdx];
         }
-        newStartVnode = newCh[++newStartIdx];
       }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
+      if (oldStartIdx > oldEndIdx) {
+        refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+        addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+      } else if (newStartIdx > newEndIdx) {
+        removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      }
+    }
+
+    function checkDuplicateKeys (children) {
+      var seenKeys = {};
+      for (var i = 0; i < children.length; i++) {
+        var vnode = children[i];
+        var key = vnode.key;
+        if (isDef(key)) {
+          if (seenKeys[key]) {
+            warn(
+              ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+              vnode.context
+            );
+          } else {
+            seenKeys[key] = true;
+          }
         }
       }
     }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
-  }
 
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
-    if (oldVnode === vnode) {
-      return
+    function findIdxInOld (node, oldCh, start, end) {
+      for (var i = start; i < end; i++) {
+        var c = oldCh[i];
+        if (isDef(c) && sameVnode(node, c)) { return i }
+      }
     }
 
-    var elm = vnode.elm = oldVnode.elm;
+    function patchVnode (
+      oldVnode,
+      vnode,
+      insertedVnodeQueue,
+      ownerArray,
+      index,
+      removeOnly
+    ) {
+      if (oldVnode === vnode) {
+        return
+      }
 
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
+      if (isDef(vnode.elm) && isDef(ownerArray)) {
+        // clone reused vnode
+        vnode = ownerArray[index] = cloneVNode(vnode);
       }
-      return
-    }
 
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
+      var elm = vnode.elm = oldVnode.elm;
 
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
+      if (isTrue(oldVnode.isAsyncPlaceholder)) {
+        if (isDef(vnode.asyncFactory.resolved)) {
+          hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+        } else {
+          vnode.isAsyncPlaceholder = true;
+        }
+        return
+      }
 
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
+      // reuse element for static trees.
+      // note we only do this if the vnode is cloned -
+      // if the new node is not cloned it means the render functions have been
+      // reset by the hot-reload-api and we need to do a proper re-render.
+      if (isTrue(vnode.isStatic) &&
+        isTrue(oldVnode.isStatic) &&
+        vnode.key === oldVnode.key &&
+        (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+      ) {
+        vnode.componentInstance = oldVnode.componentInstance;
+        return
+      }
+
+      var i;
+      var data = vnode.data;
+      if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+        i(oldVnode, vnode);
+      }
+
+      var oldCh = oldVnode.children;
+      var ch = vnode.children;
+      if (isDef(data) && isPatchable(vnode)) {
+        for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+        if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+      }
+      if (isUndef(vnode.text)) {
+        if (isDef(oldCh) && isDef(ch)) {
+          if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+        } else if (isDef(ch)) {
+          {
+            checkDuplicateKeys(ch);
+          }
+          if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+          addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+        } else if (isDef(oldCh)) {
+          removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        } else if (isDef(oldVnode.text)) {
+          nodeOps.setTextContent(elm, '');
+        }
+      } else if (oldVnode.text !== vnode.text) {
+        nodeOps.setTextContent(elm, vnode.text);
+      }
+      if (isDef(data)) {
+        if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
       }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
     }
-  }
 
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
+    function invokeInsertHook (vnode, queue, initial) {
+      // delay insert hooks for component root nodes, invoke them after the
+      // element is really inserted
+      if (isTrue(initial) && isDef(vnode.parent)) {
+        vnode.parent.data.pendingInsert = queue;
+      } else {
+        for (var i = 0; i < queue.length; ++i) {
+          queue[i].data.hook.insert(queue[i]);
+        }
       }
     }
-  }
 
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+    var hydrationBailed = false;
+    // list of modules that can skip create hook during hydration because they
+    // are already rendered on the client or has no need for initialization
+    // Note: style is excluded because it relies on initial clone for future
+    // deep updates (#7063).
+    var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
 
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
+    // Note: this is a browser-only function so we can assume elms are DOM nodes.
+    function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+      var i;
+      var tag = vnode.tag;
+      var data = vnode.data;
+      var children = vnode.children;
+      inVPre = inVPre || (data && data.pre);
+      vnode.elm = elm;
 
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
+      if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+        vnode.isAsyncPlaceholder = true;
         return true
       }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
+      // assert node match
+      {
+        if (!assertNodeMatch(elm, vnode, inVPre)) {
+          return false
+        }
+      }
+      if (isDef(data)) {
+        if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+        if (isDef(i = vnode.componentInstance)) {
+          // child component. it should have hydrated its own tree.
+          initComponent(vnode, insertedVnodeQueue);
+          return true
+        }
+      }
+      if (isDef(tag)) {
+        if (isDef(children)) {
+          // empty element, allow client to pick up and populate children
+          if (!elm.hasChildNodes()) {
+            createChildren(vnode, children, insertedVnodeQueue);
           } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
+            // v-html and domProps: innerHTML
+            if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+              if (i !== elm.innerHTML) {
+                /* istanbul ignore if */
+                if (typeof console !== 'undefined' &&
+                  !hydrationBailed
+                ) {
+                  hydrationBailed = true;
+                  console.warn('Parent: ', elm);
+                  console.warn('server innerHTML: ', i);
+                  console.warn('client innerHTML: ', elm.innerHTML);
+                }
+                return false
               }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+            } else {
+              // iterate and compare children lists
+              var childrenMatch = true;
+              var childNode = elm.firstChild;
+              for (var i$1 = 0; i$1 < children.length; i$1++) {
+                if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+                  childrenMatch = false;
+                  break
+                }
+                childNode = childNode.nextSibling;
+              }
+              // if childNode is not null, it means the actual childNodes list is
+              // longer than the virtual children list.
+              if (!childrenMatch || childNode) {
+                /* istanbul ignore if */
+                if (typeof console !== 'undefined' &&
+                  !hydrationBailed
+                ) {
+                  hydrationBailed = true;
+                  console.warn('Parent: ', elm);
+                  console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+                }
+                return false
               }
-              return false
             }
           }
         }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
+        if (isDef(data)) {
+          var fullInvoke = false;
+          for (var key in data) {
+            if (!isRenderedModule(key)) {
+              fullInvoke = true;
+              invokeCreateHooks(vnode, insertedVnodeQueue);
+              break
+            }
+          }
+          if (!fullInvoke && data['class']) {
+            // ensure collecting deps for deep class bindings for future updates
+            traverse(data['class']);
           }
         }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
+      } else if (elm.data !== vnode.text) {
+        elm.data = vnode.text;
       }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
+      return true
     }
-    return true
-  }
 
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
+    function assertNodeMatch (node, vnode, inVPre) {
+      if (isDef(vnode.tag)) {
+        return vnode.tag.indexOf('vue-component') === 0 || (
+          !isUnknownElement$$1(vnode, inVPre) &&
+          vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+        )
+      } else {
+        return node.nodeType === (vnode.isComment ? 8 : 3)
+      }
     }
-  }
 
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
-      return
-    }
+    return function patch (oldVnode, vnode, hydrating, removeOnly) {
+      if (isUndef(vnode)) {
+        if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+        return
+      }
 
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
+      var isInitialPatch = false;
+      var insertedVnodeQueue = [];
 
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
+      if (isUndef(oldVnode)) {
+        // empty mount (likely as component), create new root element
+        isInitialPatch = true;
+        createElm(vnode, insertedVnodeQueue);
       } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
+        var isRealElement = isDef(oldVnode.nodeType);
+        if (!isRealElement && sameVnode(oldVnode, vnode)) {
+          // patch existing root node
+          patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
+        } else {
+          if (isRealElement) {
+            // mounting to a real element
+            // check if this is server-rendered content and if we can perform
+            // a successful hydration.
+            if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+              oldVnode.removeAttribute(SSR_ATTR);
+              hydrating = true;
             }
+            if (isTrue(hydrating)) {
+              if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+                invokeInsertHook(vnode, insertedVnodeQueue, true);
+                return oldVnode
+              } else {
+                warn(
+                  'The client-side rendered virtual DOM tree is not matching ' +
+                  'server-rendered content. This is likely caused by incorrect ' +
+                  'HTML markup, for example nesting block-level elements inside ' +
+                  '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                  'full client-side render.'
+                );
+              }
+            }
+            // either not server-rendered, or hydration failed.
+            // create an empty node and replace it
+            oldVnode = emptyNodeAt(oldVnode);
           }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
 
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
+          // replacing existing element
+          var oldElm = oldVnode.elm;
+          var parentElm = nodeOps.parentNode(oldElm);
+
+          // create new node
+          createElm(
+            vnode,
+            insertedVnodeQueue,
+            // extremely rare edge case: do not insert if old element is in a
+            // leaving transition. Only happens when combining transition +
+            // keep-alive + HOCs. (#4590)
+            oldElm._leaveCb ? null : parentElm,
+            nodeOps.nextSibling(oldElm)
+          );
 
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
+          // update parent placeholder node element, recursively
+          if (isDef(vnode.parent)) {
+            var ancestor = vnode.parent;
+            var patchable = isPatchable(vnode);
+            while (ancestor) {
+              for (var i = 0; i < cbs.destroy.length; ++i) {
+                cbs.destroy[i](ancestor);
               }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
+              ancestor.elm = vnode.elm;
+              if (patchable) {
+                for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                  cbs.create[i$1](emptyNode, ancestor);
                 }
+                // #6513
+                // invoke insert hooks that may have been merged by create hooks.
+                // e.g. for directives that uses the "inserted" hook.
+                var insert = ancestor.data.hook.insert;
+                if (insert.merged) {
+                  // start at index 1 to avoid re-invoking component mounted hook
+                  for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                    insert.fns[i$2]();
+                  }
+                }
+              } else {
+                registerRef(ancestor);
               }
-            } else {
-              registerRef(ancestor);
+              ancestor = ancestor.parent;
             }
-            ancestor = ancestor.parent;
           }
-        }
 
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
+          // destroy old node
+          if (isDef(parentElm)) {
+            removeVnodes(parentElm, [oldVnode], 0, 0);
+          } else if (isDef(oldVnode.tag)) {
+            invokeDestroyHook(oldVnode);
+          }
         }
       }
-    }
 
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
+      invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+      return vnode.elm
+    }
   }
-}
 
-/*  */
+  /*  */
 
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-}
+  var directives = {
+    create: updateDirectives,
+    update: updateDirectives,
+    destroy: function unbindDirectives (vnode) {
+      updateDirectives(vnode, emptyNode);
+    }
+  };
 
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
+  function updateDirectives (oldVnode, vnode) {
+    if (oldVnode.data.directives || vnode.data.directives) {
+      _update(oldVnode, vnode);
+    }
   }
-}
 
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+  function _update (oldVnode, vnode) {
+    var isCreate = oldVnode === emptyNode;
+    var isDestroy = vnode === emptyNode;
+    var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+    var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
 
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
+    var dirsWithInsert = [];
+    var dirsWithPostpatch = [];
 
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
+    var key, oldDir, dir;
+    for (key in newDirs) {
+      oldDir = oldDirs[key];
+      dir = newDirs[key];
+      if (!oldDir) {
+        // new directive, bind
+        callHook$1(dir, 'bind', vnode, oldVnode);
+        if (dir.def && dir.def.inserted) {
+          dirsWithInsert.push(dir);
+        }
+      } else {
+        // existing directive, update
+        dir.oldValue = oldDir.value;
+        callHook$1(dir, 'update', vnode, oldVnode);
+        if (dir.def && dir.def.componentUpdated) {
+          dirsWithPostpatch.push(dir);
+        }
       }
     }
-  }
 
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+    if (dirsWithInsert.length) {
+      var callInsert = function () {
+        for (var i = 0; i < dirsWithInsert.length; i++) {
+          callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+        }
+      };
+      if (isCreate) {
+        mergeVNodeHook(vnode, 'insert', callInsert);
+      } else {
+        callInsert();
       }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
     }
-  }
 
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
+    if (dirsWithPostpatch.length) {
+      mergeVNodeHook(vnode, 'postpatch', function () {
+        for (var i = 0; i < dirsWithPostpatch.length; i++) {
+          callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+        }
+      });
+    }
 
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+    if (!isCreate) {
+      for (key in oldDirs) {
+        if (!newDirs[key]) {
+          // no longer present, unbind
+          callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+        }
       }
     }
   }
-}
 
-var emptyModifiers = Object.create(null);
+  var emptyModifiers = Object.create(null);
 
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
+  function normalizeDirectives$1 (
+    dirs,
+    vm
+  ) {
+    var res = Object.create(null);
+    if (!dirs) {
       // $flow-disable-line
-      dir.modifiers = emptyModifiers;
+      return res
+    }
+    var i, dir;
+    for (i = 0; i < dirs.length; i++) {
+      dir = dirs[i];
+      if (!dir.modifiers) {
+        // $flow-disable-line
+        dir.modifiers = emptyModifiers;
+      }
+      res[getRawDirName(dir)] = dir;
+      dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
     }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+    // $flow-disable-line
+    return res
   }
-  // $flow-disable-line
-  return res
-}
 
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
+  function getRawDirName (dir) {
+    return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
+  }
 
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+  function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+    var fn = dir.def && dir.def[hook];
+    if (fn) {
+      try {
+        fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+      } catch (e) {
+        handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+      }
     }
   }
-}
 
-var baseModules = [
-  ref,
-  directives
-]
+  var baseModules = [
+    ref,
+    directives
+  ];
 
-/*  */
+  /*  */
 
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
+  function updateAttrs (oldVnode, vnode) {
+    var opts = vnode.componentOptions;
+    if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+      return
+    }
+    if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+      return
+    }
+    var key, cur, old;
+    var elm = vnode.elm;
+    var oldAttrs = oldVnode.data.attrs || {};
+    var attrs = vnode.data.attrs || {};
+    // clone observed objects, as the user probably wants to mutate it
+    if (isDef(attrs.__ob__)) {
+      attrs = vnode.data.attrs = extend({}, attrs);
+    }
 
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
+    for (key in attrs) {
+      cur = attrs[key];
+      old = oldAttrs[key];
+      if (old !== cur) {
+        setAttr(elm, key, cur);
+      }
+    }
+    // #4391: in IE9, setting type can reset value for input[type=radio]
+    // #6666: IE/Edge forces progress value down to 1 before setting a max
+    /* istanbul ignore if */
+    if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+      setAttr(elm, 'value', attrs.value);
+    }
+    for (key in oldAttrs) {
+      if (isUndef(attrs[key])) {
+        if (isXlink(key)) {
+          elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+        } else if (!isEnumeratedAttr(key)) {
+          elm.removeAttribute(key);
+        }
+      }
     }
   }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
+
+  function setAttr (el, key, value) {
+    if (el.tagName.indexOf('-') > -1) {
+      baseSetAttr(el, key, value);
+    } else if (isBooleanAttr(key)) {
+      // set attribute for blank value
+      // e.g. <option disabled>Select one</option>
+      if (isFalsyAttrValue(value)) {
+        el.removeAttribute(key);
+      } else {
+        // technically allowfullscreen is a boolean attribute for <iframe>,
+        // but Flash expects a value of "true" when used on <embed> tag
+        value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+          ? 'true'
+          : key;
+        el.setAttribute(key, value);
+      }
+    } else if (isEnumeratedAttr(key)) {
+      el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+    } else if (isXlink(key)) {
+      if (isFalsyAttrValue(value)) {
+        el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else {
+        el.setAttributeNS(xlinkNS, key, value);
       }
+    } else {
+      baseSetAttr(el, key, value);
     }
   }
-}
 
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
+  function baseSetAttr (el, key, value) {
     if (isFalsyAttrValue(value)) {
       el.removeAttribute(key);
     } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
+      // #7138: IE10 & 11 fires input event when setting placeholder on
+      // <textarea>... block the first input event and remove the blocker
+      // immediately.
+      /* istanbul ignore if */
+      if (
+        isIE && !isIE9 &&
+        (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
+        key === 'placeholder' && !el.__ieph
+      ) {
+        var blocker = function (e) {
+          e.stopImmediatePropagation();
+          el.removeEventListener('input', blocker);
+        };
+        el.addEventListener('input', blocker);
+        // $flow-disable-line
+        el.__ieph = true; /* IE placeholder patched */
+      }
       el.setAttribute(key, value);
     }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    baseSetAttr(el, key, value);
   }
-}
 
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-    /* istanbul ignore if */
+  var attrs = {
+    create: updateAttrs,
+    update: updateAttrs
+  };
+
+  /*  */
+
+  function updateClass (oldVnode, vnode) {
+    var el = vnode.elm;
+    var data = vnode.data;
+    var oldData = oldVnode.data;
     if (
-      isIE && !isIE9 &&
-      el.tagName === 'TEXTAREA' &&
-      key === 'placeholder' && !el.__ieph
+      isUndef(data.staticClass) &&
+      isUndef(data.class) && (
+        isUndef(oldData) || (
+          isUndef(oldData.staticClass) &&
+          isUndef(oldData.class)
+        )
+      )
     ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
+      return
+    }
+
+    var cls = genClassForVnode(vnode);
+
+    // handle transition classes
+    var transitionClass = el._transitionClasses;
+    if (isDef(transitionClass)) {
+      cls = concat(cls, stringifyClass(transitionClass));
+    }
+
+    // set the class
+    if (cls !== el._prevClass) {
+      el.setAttribute('class', cls);
+      el._prevClass = cls;
     }
-    el.setAttribute(key, value);
   }
-}
 
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-}
+  var klass = {
+    create: updateClass,
+    update: updateClass
+  };
 
-/*  */
+  /*  */
 
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
+  /*  */
+
+  /*  */
+
+  /*  */
+
+  // in some cases, the event used has to be determined at runtime
+  // so we used some reserved tokens during compile.
+  var RANGE_TOKEN = '__r';
+  var CHECKBOX_RADIO_TOKEN = '__c';
+
+  /*  */
+
+  // normalize v-model event tokens that can only be determined at runtime.
+  // it's important to place the event as the first in the array because
+  // the whole point is ensuring the v-model callback gets called before
+  // user-attached handlers.
+  function normalizeEvents (on) {
+    /* istanbul ignore if */
+    if (isDef(on[RANGE_TOKEN])) {
+      // IE input[type=range] only supports `change` event
+      var event = isIE ? 'change' : 'input';
+      on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+      delete on[RANGE_TOKEN];
+    }
+    // This was originally intended to fix #4521 but no longer necessary
+    // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+    /* istanbul ignore if */
+    if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+      on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+      delete on[CHECKBOX_RADIO_TOKEN];
+    }
+  }
+
+  var target$1;
+
+  function createOnceHandler$1 (event, handler, capture) {
+    var _target = target$1; // save current target element in closure
+    return function onceHandler () {
+      var res = handler.apply(null, arguments);
+      if (res !== null) {
+        remove$2(event, onceHandler, capture, _target);
+      }
+    }
   }
 
-  var cls = genClassForVnode(vnode);
+  function add$1 (
+    event,
+    handler,
+    capture,
+    passive
+  ) {
+    handler = withMacroTask(handler);
+    target$1.addEventListener(
+      event,
+      handler,
+      supportsPassive
+        ? { capture: capture, passive: passive }
+        : capture
+    );
+  }
 
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
+  function remove$2 (
+    event,
+    handler,
+    capture,
+    _target
+  ) {
+    (_target || target$1).removeEventListener(
+      event,
+      handler._withTask || handler,
+      capture
+    );
   }
 
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
+  function updateDOMListeners (oldVnode, vnode) {
+    if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+      return
+    }
+    var on = vnode.data.on || {};
+    var oldOn = oldVnode.data.on || {};
+    target$1 = vnode.elm;
+    normalizeEvents(on);
+    updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
+    target$1 = undefined;
   }
-}
 
-var klass = {
-  create: updateClass,
-  update: updateClass
-}
+  var events = {
+    create: updateDOMListeners,
+    update: updateDOMListeners
+  };
+
+  /*  */
+
+  function updateDOMProps (oldVnode, vnode) {
+    if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+      return
+    }
+    var key, cur;
+    var elm = vnode.elm;
+    var oldProps = oldVnode.data.domProps || {};
+    var props = vnode.data.domProps || {};
+    // clone observed objects, as the user probably wants to mutate it
+    if (isDef(props.__ob__)) {
+      props = vnode.data.domProps = extend({}, props);
+    }
+
+    for (key in oldProps) {
+      if (isUndef(props[key])) {
+        elm[key] = '';
+      }
+    }
+    for (key in props) {
+      cur = props[key];
+      // ignore children if the node has textContent or innerHTML,
+      // as these will throw away existing DOM nodes and cause removal errors
+      // on subsequent patches (#3360)
+      if (key === 'textContent' || key === 'innerHTML') {
+        if (vnode.children) { vnode.children.length = 0; }
+        if (cur === oldProps[key]) { continue }
+        // #6601 work around Chrome version <= 55 bug where single textNode
+        // replaced by innerHTML/textContent retains its parentNode property
+        if (elm.childNodes.length === 1) {
+          elm.removeChild(elm.childNodes[0]);
+        }
+      }
 
-/*  */
+      if (key === 'value') {
+        // store value as _value as well since
+        // non-string values will be stringified
+        elm._value = cur;
+        // avoid resetting cursor position when value is the same
+        var strCur = isUndef(cur) ? '' : String(cur);
+        if (shouldUpdateValue(elm, strCur)) {
+          elm.value = strCur;
+        }
+      } else {
+        elm[key] = cur;
+      }
+    }
+  }
 
-/*  */
+  // check platforms/web/util/attrs.js acceptValue
 
 
+  function shouldUpdateValue (elm, checkVal) {
+    return (!elm.composing && (
+      elm.tagName === 'OPTION' ||
+      isNotInFocusAndDirty(elm, checkVal) ||
+      isDirtyWithModifiers(elm, checkVal)
+    ))
+  }
 
+  function isNotInFocusAndDirty (elm, checkVal) {
+    // return true when textbox (.number and .trim) loses focus and its value is
+    // not equal to the updated value
+    var notInFocus = true;
+    // #6157
+    // work around IE bug when accessing document.activeElement in an iframe
+    try { notInFocus = document.activeElement !== elm; } catch (e) {}
+    return notInFocus && elm.value !== checkVal
+  }
 
+  function isDirtyWithModifiers (elm, newVal) {
+    var value = elm.value;
+    var modifiers = elm._vModifiers; // injected by v-model runtime
+    if (isDef(modifiers)) {
+      if (modifiers.lazy) {
+        // inputs with lazy should only be updated when not in focus
+        return false
+      }
+      if (modifiers.number) {
+        return toNumber(value) !== toNumber(newVal)
+      }
+      if (modifiers.trim) {
+        return value.trim() !== newVal.trim()
+      }
+    }
+    return value !== newVal
+  }
 
+  var domProps = {
+    create: updateDOMProps,
+    update: updateDOMProps
+  };
 
+  /*  */
 
+  var parseStyleText = cached(function (cssText) {
+    var res = {};
+    var listDelimiter = /;(?![^(]*\))/g;
+    var propertyDelimiter = /:(.+)/;
+    cssText.split(listDelimiter).forEach(function (item) {
+      if (item) {
+        var tmp = item.split(propertyDelimiter);
+        tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+      }
+    });
+    return res
+  });
 
+  // merge static and dynamic style data on the same vnode
+  function normalizeStyleData (data) {
+    var style = normalizeStyleBinding(data.style);
+    // static style is pre-processed into an object during compilation
+    // and is always a fresh object, so it's safe to merge into it
+    return data.staticStyle
+      ? extend(data.staticStyle, style)
+      : style
+  }
 
-// add a raw attr (use this in preTransforms)
+  // normalize possible array / string values into Object
+  function normalizeStyleBinding (bindingStyle) {
+    if (Array.isArray(bindingStyle)) {
+      return toObject(bindingStyle)
+    }
+    if (typeof bindingStyle === 'string') {
+      return parseStyleText(bindingStyle)
+    }
+    return bindingStyle
+  }
 
+  /**
+   * parent component style should be after child's
+   * so that parent component's style could override it
+   */
+  function getStyle (vnode, checkChild) {
+    var res = {};
+    var styleData;
 
+    if (checkChild) {
+      var childNode = vnode;
+      while (childNode.componentInstance) {
+        childNode = childNode.componentInstance._vnode;
+        if (
+          childNode && childNode.data &&
+          (styleData = normalizeStyleData(childNode.data))
+        ) {
+          extend(res, styleData);
+        }
+      }
+    }
 
+    if ((styleData = normalizeStyleData(vnode.data))) {
+      extend(res, styleData);
+    }
 
+    var parentNode = vnode;
+    while ((parentNode = parentNode.parent)) {
+      if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+        extend(res, styleData);
+      }
+    }
+    return res
+  }
 
+  /*  */
 
+  var cssVarRE = /^--/;
+  var importantRE = /\s*!important$/;
+  var setProp = function (el, name, val) {
+    /* istanbul ignore if */
+    if (cssVarRE.test(name)) {
+      el.style.setProperty(name, val);
+    } else if (importantRE.test(val)) {
+      el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+    } else {
+      var normalizedName = normalize(name);
+      if (Array.isArray(val)) {
+        // Support values array created by autoprefixer, e.g.
+        // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+        // Set them one by one, and the browser will only set those it can recognize
+        for (var i = 0, len = val.length; i < len; i++) {
+          el.style[normalizedName] = val[i];
+        }
+      } else {
+        el.style[normalizedName] = val;
+      }
+    }
+  };
 
+  var vendorNames = ['Webkit', 'Moz', 'ms'];
 
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
+  var emptyStyle;
+  var normalize = cached(function (prop) {
+    emptyStyle = emptyStyle || document.createElement('div').style;
+    prop = camelize(prop);
+    if (prop !== 'filter' && (prop in emptyStyle)) {
+      return prop
+    }
+    var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+    for (var i = 0; i < vendorNames.length; i++) {
+      var name = vendorNames[i] + capName;
+      if (name in emptyStyle) {
+        return name
+      }
+    }
+  });
 
-/*  */
+  function updateStyle (oldVnode, vnode) {
+    var data = vnode.data;
+    var oldData = oldVnode.data;
 
-/**
- * Cross-platform code generation for component v-model
- */
+    if (isUndef(data.staticStyle) && isUndef(data.style) &&
+      isUndef(oldData.staticStyle) && isUndef(oldData.style)
+    ) {
+      return
+    }
 
+    var cur, name;
+    var el = vnode.elm;
+    var oldStaticStyle = oldData.staticStyle;
+    var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
 
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
+    // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+    var oldStyle = oldStaticStyle || oldStyleBinding;
 
-/*  */
+    var style = normalizeStyleBinding(vnode.data.style) || {};
 
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
+    // store normalized style under a different key for next diff
+    // make sure to clone it if it's reactive, since the user likely wants
+    // to mutate it.
+    vnode.data.normalizedStyle = isDef(style.__ob__)
+      ? extend({}, style)
+      : style;
 
-/*  */
+    var newStyle = getStyle(vnode, true);
 
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler (handler, event, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  once$$1,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  if (once$$1) { handler = createOnceHandler(handler, event, capture); }
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-}
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
+    for (name in oldStyle) {
+      if (isUndef(newStyle[name])) {
+        setProp(el, name, '');
       }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
     }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
+    for (name in newStyle) {
+      cur = newStyle[name];
+      if (cur !== oldStyle[name]) {
+        // ie9 setting to null has no effect, must use empty string
+        setProp(el, name, cur == null ? '' : cur);
+      }
     }
   }
-  return value !== newVal
-}
 
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-}
+  var style = {
+    create: updateStyle,
+    update: updateStyle
+  };
+
+  /*  */
 
-/*  */
+  var whitespaceRE = /\s+/;
 
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+  /**
+   * Add class with compatibility for SVG since classList is not supported on
+   * SVG elements in IE
+   */
+  function addClass (el, cls) {
+    /* istanbul ignore if */
+    if (!cls || !(cls = cls.trim())) {
+      return
     }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
 
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
+    /* istanbul ignore else */
+    if (el.classList) {
+      if (cls.indexOf(' ') > -1) {
+        cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
+      } else {
+        el.classList.add(cls);
+      }
+    } else {
+      var cur = " " + (el.getAttribute('class') || '') + " ";
+      if (cur.indexOf(' ' + cls + ' ') < 0) {
+        el.setAttribute('class', (cur + cls).trim());
       }
     }
   }
 
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
+  /**
+   * Remove class with compatibility for SVG since classList is not supported on
+   * SVG elements in IE
+   */
+  function removeClass (el, cls) {
+    /* istanbul ignore if */
+    if (!cls || !(cls = cls.trim())) {
+      return
+    }
 
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
+    /* istanbul ignore else */
+    if (el.classList) {
+      if (cls.indexOf(' ') > -1) {
+        cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
+      } else {
+        el.classList.remove(cls);
+      }
+      if (!el.classList.length) {
+        el.removeAttribute('class');
+      }
+    } else {
+      var cur = " " + (el.getAttribute('class') || '') + " ";
+      var tar = ' ' + cls + ' ';
+      while (cur.indexOf(tar) >= 0) {
+        cur = cur.replace(tar, ' ');
+      }
+      cur = cur.trim();
+      if (cur) {
+        el.setAttribute('class', cur);
+      } else {
+        el.removeAttribute('class');
+      }
     }
   }
-  return res
-}
 
-/*  */
+  /*  */
 
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
+  function resolveTransition (def$$1) {
+    if (!def$$1) {
+      return
+    }
+    /* istanbul ignore else */
+    if (typeof def$$1 === 'object') {
+      var res = {};
+      if (def$$1.css !== false) {
+        extend(res, autoCssTransition(def$$1.name || 'v'));
       }
-    } else {
-      el.style[normalizedName] = val;
+      extend(res, def$$1);
+      return res
+    } else if (typeof def$$1 === 'string') {
+      return autoCssTransition(def$$1)
     }
   }
-};
 
-var vendorNames = ['Webkit', 'Moz', 'ms'];
+  var autoCssTransition = cached(function (name) {
+    return {
+      enterClass: (name + "-enter"),
+      enterToClass: (name + "-enter-to"),
+      enterActiveClass: (name + "-enter-active"),
+      leaveClass: (name + "-leave"),
+      leaveToClass: (name + "-leave-to"),
+      leaveActiveClass: (name + "-leave-active")
+    }
+  });
+
+  var hasTransition = inBrowser && !isIE9;
+  var TRANSITION = 'transition';
+  var ANIMATION = 'animation';
 
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
+  // Transition property/event sniffing
+  var transitionProp = 'transition';
+  var transitionEndEvent = 'transitionend';
+  var animationProp = 'animation';
+  var animationEndEvent = 'animationend';
+  if (hasTransition) {
+    /* istanbul ignore if */
+    if (window.ontransitionend === undefined &&
+      window.onwebkittransitionend !== undefined
+    ) {
+      transitionProp = 'WebkitTransition';
+      transitionEndEvent = 'webkitTransitionEnd';
+    }
+    if (window.onanimationend === undefined &&
+      window.onwebkitanimationend !== undefined
+    ) {
+      animationProp = 'WebkitAnimation';
+      animationEndEvent = 'webkitAnimationEnd';
     }
   }
-});
 
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
+  // binding to window is necessary to make hot reload work in IE in strict mode
+  var raf = inBrowser
+    ? window.requestAnimationFrame
+      ? window.requestAnimationFrame.bind(window)
+      : setTimeout
+    : /* istanbul ignore next */ function (fn) { return fn(); };
 
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
+  function nextFrame (fn) {
+    raf(function () {
+      raf(fn);
+    });
   }
 
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+  function addTransitionClass (el, cls) {
+    var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+    if (transitionClasses.indexOf(cls) < 0) {
+      transitionClasses.push(cls);
+      addClass(el, cls);
+    }
+  }
 
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
+  function removeTransitionClass (el, cls) {
+    if (el._transitionClasses) {
+      remove(el._transitionClasses, cls);
+    }
+    removeClass(el, cls);
+  }
 
-  var style = normalizeStyleBinding(vnode.data.style) || {};
+  function whenTransitionEnds (
+    el,
+    expectedType,
+    cb
+  ) {
+    var ref = getTransitionInfo(el, expectedType);
+    var type = ref.type;
+    var timeout = ref.timeout;
+    var propCount = ref.propCount;
+    if (!type) { return cb() }
+    var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+    var ended = 0;
+    var end = function () {
+      el.removeEventListener(event, onEnd);
+      cb();
+    };
+    var onEnd = function (e) {
+      if (e.target === el) {
+        if (++ended >= propCount) {
+          end();
+        }
+      }
+    };
+    setTimeout(function () {
+      if (ended < propCount) {
+        end();
+      }
+    }, timeout + 1);
+    el.addEventListener(event, onEnd);
+  }
 
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
+  var transformRE = /\b(transform|all)(,|$)/;
 
-  var newStyle = getStyle(vnode, true);
+  function getTransitionInfo (el, expectedType) {
+    var styles = window.getComputedStyle(el);
+    // JSDOM may return undefined for transition properties
+    var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+    var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
+    var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+    var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+    var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
+    var animationTimeout = getTimeout(animationDelays, animationDurations);
 
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
+    var type;
+    var timeout = 0;
+    var propCount = 0;
+    /* istanbul ignore if */
+    if (expectedType === TRANSITION) {
+      if (transitionTimeout > 0) {
+        type = TRANSITION;
+        timeout = transitionTimeout;
+        propCount = transitionDurations.length;
+      }
+    } else if (expectedType === ANIMATION) {
+      if (animationTimeout > 0) {
+        type = ANIMATION;
+        timeout = animationTimeout;
+        propCount = animationDurations.length;
+      }
+    } else {
+      timeout = Math.max(transitionTimeout, animationTimeout);
+      type = timeout > 0
+        ? transitionTimeout > animationTimeout
+          ? TRANSITION
+          : ANIMATION
+        : null;
+      propCount = type
+        ? type === TRANSITION
+          ? transitionDurations.length
+          : animationDurations.length
+        : 0;
+    }
+    var hasTransform =
+      type === TRANSITION &&
+      transformRE.test(styles[transitionProp + 'Property']);
+    return {
+      type: type,
+      timeout: timeout,
+      propCount: propCount,
+      hasTransform: hasTransform
+    }
+  }
+
+  function getTimeout (delays, durations) {
+    /* istanbul ignore next */
+    while (delays.length < durations.length) {
+      delays = delays.concat(delays);
     }
+
+    return Math.max.apply(null, durations.map(function (d, i) {
+      return toMs(d) + toMs(delays[i])
+    }))
   }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
+
+  // Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+  // in a locale-dependent way, using a comma instead of a dot.
+  // If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+  // as a floor function) causing unexpected behaviors
+  function toMs (s) {
+    return Number(s.slice(0, -1).replace(',', '.')) * 1000
   }
-}
 
-var style = {
-  create: updateStyle,
-  update: updateStyle
-}
+  /*  */
 
-/*  */
+  function enter (vnode, toggleDisplay) {
+    var el = vnode.elm;
 
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
+    // call leave callback now
+    if (isDef(el._leaveCb)) {
+      el._leaveCb.cancelled = true;
+      el._leaveCb();
+    }
 
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
+    var data = resolveTransition(vnode.data.transition);
+    if (isUndef(data)) {
+      return
     }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
+
+    /* istanbul ignore if */
+    if (isDef(el._enterCb) || el.nodeType !== 1) {
+      return
     }
-  }
-}
 
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
+    var css = data.css;
+    var type = data.type;
+    var enterClass = data.enterClass;
+    var enterToClass = data.enterToClass;
+    var enterActiveClass = data.enterActiveClass;
+    var appearClass = data.appearClass;
+    var appearToClass = data.appearToClass;
+    var appearActiveClass = data.appearActiveClass;
+    var beforeEnter = data.beforeEnter;
+    var enter = data.enter;
+    var afterEnter = data.afterEnter;
+    var enterCancelled = data.enterCancelled;
+    var beforeAppear = data.beforeAppear;
+    var appear = data.appear;
+    var afterAppear = data.afterAppear;
+    var appearCancelled = data.appearCancelled;
+    var duration = data.duration;
+
+    // activeInstance will always be the <transition> component managing this
+    // transition. One edge case to check is when the <transition> is placed
+    // as the root node of a child component. In that case we need to check
+    // <transition>'s parent for appear check.
+    var context = activeInstance;
+    var transitionNode = activeInstance.$vnode;
+    while (transitionNode && transitionNode.parent) {
+      transitionNode = transitionNode.parent;
+      context = transitionNode.context;
+    }
+
+    var isAppear = !context._isMounted || !vnode.isRootInsert;
+
+    if (isAppear && !appear && appear !== '') {
+      return
+    }
 
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
+    var startClass = isAppear && appearClass
+      ? appearClass
+      : enterClass;
+    var activeClass = isAppear && appearActiveClass
+      ? appearActiveClass
+      : enterActiveClass;
+    var toClass = isAppear && appearToClass
+      ? appearToClass
+      : enterToClass;
+
+    var beforeEnterHook = isAppear
+      ? (beforeAppear || beforeEnter)
+      : beforeEnter;
+    var enterHook = isAppear
+      ? (typeof appear === 'function' ? appear : enter)
+      : enter;
+    var afterEnterHook = isAppear
+      ? (afterAppear || afterEnter)
+      : afterEnter;
+    var enterCancelledHook = isAppear
+      ? (appearCancelled || enterCancelled)
+      : enterCancelled;
+
+    var explicitEnterDuration = toNumber(
+      isObject(duration)
+        ? duration.enter
+        : duration
+    );
+
+    if (explicitEnterDuration != null) {
+      checkDuration(explicitEnterDuration, 'enter', vnode);
     }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
+
+    var expectsCSS = css !== false && !isIE9;
+    var userWantsControl = getHookArgumentsLength(enterHook);
+
+    var cb = el._enterCb = once(function () {
+      if (expectsCSS) {
+        removeTransitionClass(el, toClass);
+        removeTransitionClass(el, activeClass);
+      }
+      if (cb.cancelled) {
+        if (expectsCSS) {
+          removeTransitionClass(el, startClass);
+        }
+        enterCancelledHook && enterCancelledHook(el);
+      } else {
+        afterEnterHook && afterEnterHook(el);
+      }
+      el._enterCb = null;
+    });
+
+    if (!vnode.data.show) {
+      // remove pending leave element on enter by injecting an insert hook
+      mergeVNodeHook(vnode, 'insert', function () {
+        var parent = el.parentNode;
+        var pendingNode = parent && parent._pending && parent._pending[vnode.key];
+        if (pendingNode &&
+          pendingNode.tag === vnode.tag &&
+          pendingNode.elm._leaveCb
+        ) {
+          pendingNode.elm._leaveCb();
+        }
+        enterHook && enterHook(el, cb);
+      });
     }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
+
+    // start enter transition
+    beforeEnterHook && beforeEnterHook(el);
+    if (expectsCSS) {
+      addTransitionClass(el, startClass);
+      addTransitionClass(el, activeClass);
+      nextFrame(function () {
+        removeTransitionClass(el, startClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, toClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitEnterDuration)) {
+              setTimeout(cb, explicitEnterDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
+          }
+        }
+      });
     }
-  }
-}
 
-/*  */
+    if (vnode.data.show) {
+      toggleDisplay && toggleDisplay();
+      enterHook && enterHook(el, cb);
+    }
 
-function resolveTransition (def) {
-  if (!def) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def === 'object') {
-    var res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
+    if (!expectsCSS && !userWantsControl) {
+      cb();
     }
-    extend(res, def);
-    return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
   }
-}
 
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
+  function leave (vnode, rm) {
+    var el = vnode.elm;
 
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
+    // call enter callback now
+    if (isDef(el._enterCb)) {
+      el._enterCb.cancelled = true;
+      el._enterCb();
     }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  var transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = styles[animationProp + 'Delay'].split(', ');
-  var animationDurations = styles[animationProp + 'Duration'].split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
+
+    var data = resolveTransition(vnode.data.transition);
+    if (isUndef(data) || el.nodeType !== 1) {
+      return rm()
     }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
 
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
+    /* istanbul ignore if */
+    if (isDef(el._leaveCb)) {
+      return
+    }
 
-function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
-}
+    var css = data.css;
+    var type = data.type;
+    var leaveClass = data.leaveClass;
+    var leaveToClass = data.leaveToClass;
+    var leaveActiveClass = data.leaveActiveClass;
+    var beforeLeave = data.beforeLeave;
+    var leave = data.leave;
+    var afterLeave = data.afterLeave;
+    var leaveCancelled = data.leaveCancelled;
+    var delayLeave = data.delayLeave;
+    var duration = data.duration;
+
+    var expectsCSS = css !== false && !isIE9;
+    var userWantsControl = getHookArgumentsLength(leave);
+
+    var explicitLeaveDuration = toNumber(
+      isObject(duration)
+        ? duration.leave
+        : duration
+    );
 
-/*  */
+    if (isDef(explicitLeaveDuration)) {
+      checkDuration(explicitLeaveDuration, 'leave', vnode);
+    }
 
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
+    var cb = el._leaveCb = once(function () {
+      if (el.parentNode && el.parentNode._pending) {
+        el.parentNode._pending[vnode.key] = null;
+      }
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveToClass);
+        removeTransitionClass(el, leaveActiveClass);
+      }
+      if (cb.cancelled) {
+        if (expectsCSS) {
+          removeTransitionClass(el, leaveClass);
+        }
+        leaveCancelled && leaveCancelled(el);
+      } else {
+        rm();
+        afterLeave && afterLeave(el);
+      }
+      el._leaveCb = null;
+    });
 
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
+    if (delayLeave) {
+      delayLeave(performLeave);
+    } else {
+      performLeave();
+    }
 
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
+    function performLeave () {
+      // the delayed leave may have already been cancelled
+      if (cb.cancelled) {
+        return
+      }
+      // record leaving element
+      if (!vnode.data.show && el.parentNode) {
+        (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+      }
+      beforeLeave && beforeLeave(el);
+      if (expectsCSS) {
+        addTransitionClass(el, leaveClass);
+        addTransitionClass(el, leaveActiveClass);
+        nextFrame(function () {
+          removeTransitionClass(el, leaveClass);
+          if (!cb.cancelled) {
+            addTransitionClass(el, leaveToClass);
+            if (!userWantsControl) {
+              if (isValidDuration(explicitLeaveDuration)) {
+                setTimeout(cb, explicitLeaveDuration);
+              } else {
+                whenTransitionEnds(el, type, cb);
+              }
+            }
+          }
+        });
+      }
+      leave && leave(el, cb);
+      if (!expectsCSS && !userWantsControl) {
+        cb();
+      }
+    }
   }
 
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if ("development" !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
+  // only used in dev mode
+  function checkDuration (val, name, vnode) {
+    if (typeof val !== 'number') {
+      warn(
+        "<transition> explicit " + name + " duration is not a valid number - " +
+        "got " + (JSON.stringify(val)) + ".",
+        vnode.context
+      );
+    } else if (isNaN(val)) {
+      warn(
+        "<transition> explicit " + name + " duration is NaN - " +
+        'the duration expression might be incorrect.',
+        vnode.context
+      );
+    }
   }
 
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
+  function isValidDuration (val) {
+    return typeof val === 'number' && !isNaN(val)
+  }
 
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
+  /**
+   * Normalize a transition hook's argument length. The hook may be:
+   * - a merged hook (invoker) with the original in .fns
+   * - a wrapped component method (check ._length)
+   * - a plain function (.length)
+   */
+  function getHookArgumentsLength (fn) {
+    if (isUndef(fn)) {
+      return false
     }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
+    var invokerFns = fn.fns;
+    if (isDef(invokerFns)) {
+      // invoker
+      return getHookArgumentsLength(
+        Array.isArray(invokerFns)
+          ? invokerFns[0]
+          : invokerFns
+      )
     } else {
-      afterEnterHook && afterEnterHook(el);
+      return (fn._length || fn.length) > 1
     }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
   }
 
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
+  function _enter (_, vnode) {
+    if (vnode.data.show !== true) {
+      enter(vnode);
+    }
   }
 
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
+  var transition = inBrowser ? {
+    create: _enter,
+    activate: _enter,
+    remove: function remove$$1 (vnode, rm) {
+      /* istanbul ignore else */
+      if (vnode.data.show !== true) {
+        leave(vnode, rm);
+      } else {
+        rm();
+      }
+    }
+  } : {};
 
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
+  var platformModules = [
+    attrs,
+    klass,
+    events,
+    domProps,
+    style,
+    transition
+  ];
 
-function leave (vnode, rm) {
-  var el = vnode.elm;
+  /*  */
 
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
+  // the directive module should be applied last, after all
+  // built-in modules have been applied.
+  var modules = platformModules.concat(baseModules);
 
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
+  var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
 
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
+  /**
+   * Not type checking this file because flow doesn't like attaching
+   * properties to Elements.
+   */
 
-  if ("development" !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  /* istanbul ignore if */
+  if (isIE9) {
+    // http://www.matts411.com/post/internet-explorer-9-oninput/
+    document.addEventListener('selectionchange', function () {
+      var el = document.activeElement;
+      if (el && el.vmodel) {
+        trigger(el, 'input');
+      }
+    });
   }
 
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
+  var directive = {
+    inserted: function inserted (el, binding, vnode, oldVnode) {
+      if (vnode.tag === 'select') {
+        // #6903
+        if (oldVnode.elm && !oldVnode.elm._vOptions) {
+          mergeVNodeHook(vnode, 'postpatch', function () {
+            directive.componentUpdated(el, binding, vnode);
+          });
+        } else {
+          setSelected(el, binding, vnode.context);
+        }
+        el._vOptions = [].map.call(el.options, getValue);
+      } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+        el._vModifiers = binding.modifiers;
+        if (!binding.modifiers.lazy) {
+          el.addEventListener('compositionstart', onCompositionStart);
+          el.addEventListener('compositionend', onCompositionEnd);
+          // Safari < 10.2 & UIWebView doesn't fire compositionend when
+          // switching focus before confirming composition choice
+          // this also fixes the issue where some browsers e.g. iOS Chrome
+          // fires "change" instead of "input" on autocomplete.
+          el.addEventListener('change', onCompositionEnd);
+          /* istanbul ignore if */
+          if (isIE9) {
+            el.vmodel = true;
+          }
+        }
+      }
+    },
+
+    componentUpdated: function componentUpdated (el, binding, vnode) {
+      if (vnode.tag === 'select') {
+        setSelected(el, binding, vnode.context);
+        // in case the options rendered by v-for have changed,
+        // it's possible that the value is out-of-sync with the rendered options.
+        // detect such cases and filter out values that no longer has a matching
+        // option in the DOM.
+        var prevOptions = el._vOptions;
+        var curOptions = el._vOptions = [].map.call(el.options, getValue);
+        if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
+          // trigger change event if
+          // no matching option found for at least one value
+          var needReset = el.multiple
+            ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+            : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+          if (needReset) {
+            trigger(el, 'change');
+          }
+        }
       }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
     }
-    el._leaveCb = null;
-  });
+  };
 
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
+  function setSelected (el, binding, vm) {
+    actuallySetSelected(el, binding, vm);
+    /* istanbul ignore if */
+    if (isIE || isEdge) {
+      setTimeout(function () {
+        actuallySetSelected(el, binding, vm);
+      }, 0);
+    }
   }
 
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
+  function actuallySetSelected (el, binding, vm) {
+    var value = binding.value;
+    var isMultiple = el.multiple;
+    if (isMultiple && !Array.isArray(value)) {
+      warn(
+        "<select multiple v-model=\"" + (binding.expression) + "\"> " +
+        "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
+        vm
+      );
       return
     }
-    // record leaving element
-    if (!vnode.data.show) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
-            }
+    var selected, option;
+    for (var i = 0, l = el.options.length; i < l; i++) {
+      option = el.options[i];
+      if (isMultiple) {
+        selected = looseIndexOf(value, getValue(option)) > -1;
+        if (option.selected !== selected) {
+          option.selected = selected;
+        }
+      } else {
+        if (looseEqual(getValue(option), value)) {
+          if (el.selectedIndex !== i) {
+            el.selectedIndex = i;
           }
+          return
         }
-      });
+      }
     }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
+    if (!isMultiple) {
+      el.selectedIndex = -1;
     }
   }
-}
 
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
+  function hasNoMatchingOption (value, options) {
+    return options.every(function (o) { return !looseEqual(o, value); })
   }
-}
 
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
+  function getValue (option) {
+    return '_value' in option
+      ? option._value
+      : option.value
   }
-}
 
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
+  function onCompositionStart (e) {
+    e.target.composing = true;
   }
-}
 
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
+  function onCompositionEnd (e) {
+    // prevent triggering an input event for no reason
+    if (!e.target.composing) { return }
+    e.target.composing = false;
+    trigger(e.target, 'input');
   }
-} : {}
 
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-]
-
-/*  */
+  function trigger (el, type) {
+    var e = document.createEvent('HTMLEvents');
+    e.initEvent(type, true, true);
+    el.dispatchEvent(e);
+  }
 
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
+  /*  */
 
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
+  // recursively search for possible transition defined inside the component root
+  function locateNode (vnode) {
+    return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+      ? locateNode(vnode.componentInstance._vnode)
+      : vnode
+  }
 
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
+  var show = {
+    bind: function bind (el, ref, vnode) {
+      var value = ref.value;
 
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
+      vnode = locateNode(vnode);
+      var transition$$1 = vnode.data && vnode.data.transition;
+      var originalDisplay = el.__vOriginalDisplay =
+        el.style.display === 'none' ? '' : el.style.display;
+      if (value && transition$$1) {
+        vnode.data.show = true;
+        enter(vnode, function () {
+          el.style.display = originalDisplay;
         });
       } else {
-        setSelected(el, binding, vnode.context);
+        el.style.display = value ? originalDisplay : 'none';
       }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
+    },
+
+    update: function update (el, ref, vnode) {
+      var value = ref.value;
+      var oldValue = ref.oldValue;
+
+      /* istanbul ignore if */
+      if (!value === !oldValue) { return }
+      vnode = locateNode(vnode);
+      var transition$$1 = vnode.data && vnode.data.transition;
+      if (transition$$1) {
+        vnode.data.show = true;
+        if (value) {
+          enter(vnode, function () {
+            el.style.display = el.__vOriginalDisplay;
+          });
+        } else {
+          leave(vnode, function () {
+            el.style.display = 'none';
+          });
         }
+      } else {
+        el.style.display = value ? el.__vOriginalDisplay : 'none';
       }
-    }
-  },
+    },
 
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
+    unbind: function unbind (
+      el,
+      binding,
+      vnode,
+      oldVnode,
+      isDestroy
+    ) {
+      if (!isDestroy) {
+        el.style.display = el.__vOriginalDisplay;
       }
     }
-  }
-};
+  };
 
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
+  var platformDirectives = {
+    model: directive,
+    show: show
+  };
 
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    "development" !== 'production' && warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
+  /*  */
+
+  var transitionProps = {
+    name: String,
+    appear: Boolean,
+    css: Boolean,
+    mode: String,
+    type: String,
+    enterClass: String,
+    leaveClass: String,
+    enterToClass: String,
+    leaveToClass: String,
+    enterActiveClass: String,
+    leaveActiveClass: String,
+    appearClass: String,
+    appearActiveClass: String,
+    appearToClass: String,
+    duration: [Number, String, Object]
+  };
+
+  // in case the child is also an abstract component, e.g. <keep-alive>
+  // we want to recursively retrieve the real component to be rendered
+  function getRealChild (vnode) {
+    var compOptions = vnode && vnode.componentOptions;
+    if (compOptions && compOptions.Ctor.options.abstract) {
+      return getRealChild(getFirstComponentChild(compOptions.children))
     } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
+      return vnode
     }
   }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
 
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
+  function extractTransitionData (comp) {
+    var data = {};
+    var options = comp.$options;
+    // props
+    for (var key in options.propsData) {
+      data[key] = comp[key];
     }
-  },
-
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-}
-
-var platformDirectives = {
-  model: directive,
-  show: show
-}
-
-/*  */
-
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
+    // events.
+    // extract listeners and pass them directly to the transition methods
+    var listeners = options._parentListeners;
+    for (var key$1 in listeners) {
+      data[camelize(key$1)] = listeners[key$1];
+    }
+    return data
   }
-}
 
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
+  function placeholder (h, rawChild) {
+    if (/\d-keep-alive$/.test(rawChild.tag)) {
+      return h('keep-alive', {
+        props: rawChild.componentOptions.propsData
+      })
+    }
   }
-  return data
-}
 
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
+  function hasParentTransition (vnode) {
+    while ((vnode = vnode.parent)) {
+      if (vnode.data.transition) {
+        return true
+      }
+    }
   }
-}
 
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
+  function isSameChild (child, oldChild) {
+    return oldChild.key === child.key && oldChild.tag === child.tag
   }
-}
 
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
+  var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
 
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
+  var isVShowDirective = function (d) { return d.name === 'show'; };
 
-  render: function render (h) {
-    var this$1 = this;
+  var Transition = {
+    name: 'transition',
+    props: transitionProps,
+    abstract: true,
 
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
+    render: function render (h) {
+      var this$1 = this;
 
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(function (c) { return c.tag || isAsyncPlaceholder(c); });
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
+      var children = this.$slots.default;
+      if (!children) {
+        return
+      }
 
-    // warn multiple elements
-    if ("development" !== 'production' && children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
+      // filter out text nodes (possible whitespaces)
+      children = children.filter(isNotTextNode);
+      /* istanbul ignore if */
+      if (!children.length) {
+        return
+      }
 
-    var mode = this.mode;
+      // warn multiple elements
+      if (children.length > 1) {
+        warn(
+          '<transition> can only be used on a single element. Use ' +
+          '<transition-group> for lists.',
+          this.$parent
+        );
+      }
 
-    // warn invalid mode
-    if ("development" !== 'production' &&
-      mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
+      var mode = this.mode;
 
-    var rawChild = children[0];
+      // warn invalid mode
+      if (mode && mode !== 'in-out' && mode !== 'out-in'
+      ) {
+        warn(
+          'invalid <transition> mode: ' + mode,
+          this.$parent
+        );
+      }
 
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
+      var rawChild = children[0];
 
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
+      // if this is a component root node and the component's
+      // parent container node also has transition, skip.
+      if (hasParentTransition(this.$vnode)) {
+        return rawChild
+      }
 
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
+      // apply transition data to child
+      // use getRealChild() to ignore abstract components e.g. keep-alive
+      var child = getRealChild(rawChild);
+      /* istanbul ignore if */
+      if (!child) {
+        return rawChild
+      }
 
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
+      if (this._leaving) {
+        return placeholder(h, rawChild)
+      }
 
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
+      // ensure a key that is unique to the vnode type and to this transition
+      // component instance. This key will be used to remove pending leaving nodes
+      // during entering.
+      var id = "__transition-" + (this._uid) + "-";
+      child.key = child.key == null
+        ? child.isComment
+          ? id + 'comment'
+          : id + child.tag
+        : isPrimitive(child.key)
+          ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+          : child.key;
 
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
-      child.data.show = true;
-    }
+      var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+      var oldRawChild = this._vnode;
+      var oldChild = getRealChild(oldRawChild);
 
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+      // mark v-show
+      // so that the transition module can hand over the control to the directive
+      if (child.data.directives && child.data.directives.some(isVShowDirective)) {
+        child.data.show = true;
       }
-    }
-
-    return rawChild
-  }
-}
 
-/*  */
+      if (
+        oldChild &&
+        oldChild.data &&
+        !isSameChild(child, oldChild) &&
+        !isAsyncPlaceholder(oldChild) &&
+        // #6687 component root is a comment node
+        !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+      ) {
+        // replace old child transition data with fresh one
+        // important for dynamic transitions!
+        var oldData = oldChild.data.transition = extend({}, data);
+        // handle transition mode
+        if (mode === 'out-in') {
+          // return placeholder node and queue update when leave finishes
+          this._leaving = true;
+          mergeVNodeHook(oldData, 'afterLeave', function () {
+            this$1._leaving = false;
+            this$1.$forceUpdate();
+          });
+          return placeholder(h, rawChild)
+        } else if (mode === 'in-out') {
+          if (isAsyncPlaceholder(child)) {
+            return oldRawChild
+          }
+          var delayedLeave;
+          var performLeave = function () { delayedLeave(); };
+          mergeVNodeHook(data, 'afterEnter', performLeave);
+          mergeVNodeHook(data, 'enterCancelled', performLeave);
+          mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+        }
+      }
 
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
+      return rawChild
+    }
+  };
 
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
+  /*  */
 
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
+  var props = extend({
+    tag: String,
+    moveClass: String
+  }, transitionProps);
 
-delete props.mode;
+  delete props.mode;
 
-var TransitionGroup = {
-  props: props,
+  var TransitionGroup = {
+    props: props,
 
-  beforeMount: function beforeMount () {
-    var this$1 = this;
+    beforeMount: function beforeMount () {
+      var this$1 = this;
 
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      update.call(this$1, vnode, hydrating);
-    };
-  },
+      var update = this._update;
+      this._update = function (vnode, hydrating) {
+        // force removing pass
+        this$1.__patch__(
+          this$1._vnode,
+          this$1.kept,
+          false, // hydrating
+          true // removeOnly (!important, avoids unnecessary moves)
+        );
+        this$1._vnode = this$1.kept;
+        update.call(this$1, vnode, hydrating);
+      };
+    },
 
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
+    render: function render (h) {
+      var tag = this.tag || this.$vnode.data.tag || 'span';
+      var map = Object.create(null);
+      var prevChildren = this.prevChildren = this.children;
+      var rawChildren = this.$slots.default || [];
+      var children = this.children = [];
+      var transitionData = extractTransitionData(this);
+
+      for (var i = 0; i < rawChildren.length; i++) {
+        var c = rawChildren[i];
+        if (c.tag) {
+          if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+            children.push(c);
+            map[c.key] = c
+            ;(c.data || (c.data = {})).transition = transitionData;
+          } else {
+            var opts = c.componentOptions;
+            var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+            warn(("<transition-group> children must be keyed: <" + name + ">"));
+          }
         }
       }
-    }
 
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
+      if (prevChildren) {
+        var kept = [];
+        var removed = [];
+        for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
+          var c$1 = prevChildren[i$1];
+          c$1.data.transition = transitionData;
+          c$1.data.pos = c$1.elm.getBoundingClientRect();
+          if (map[c$1.key]) {
+            kept.push(c$1);
+          } else {
+            removed.push(c$1);
+          }
         }
+        this.kept = h(tag, null, kept);
+        this.removed = removed;
       }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
 
-    return h(tag, null, children)
-  },
+      return h(tag, null, children)
+    },
 
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
+    updated: function updated () {
+      var children = this.prevChildren;
+      var moveClass = this.moveClass || ((this.name || 'v') + '-move');
+      if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+        return
+      }
 
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
+      // we divide the work into three loops to avoid mixing DOM reads and writes
+      // in each iteration - which helps prevent layout thrashing.
+      children.forEach(callPendingCbs);
+      children.forEach(recordPosition);
+      children.forEach(applyTranslation);
 
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
+      // force reflow to put everything in position
+      // assign to this to avoid being removed in tree-shaking
+      // $flow-disable-line
+      this._reflow = document.body.offsetHeight;
+
+      children.forEach(function (c) {
+        if (c.data.moved) {
+          var el = c.elm;
+          var s = el.style;
+          addTransitionClass(el, moveClass);
+          s.transform = s.WebkitTransform = s.transitionDuration = '';
+          el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+            if (e && e.target !== el) {
+              return
+            }
+            if (!e || /transform$/.test(e.propertyName)) {
+              el.removeEventListener(transitionEndEvent, cb);
+              el._moveCb = null;
+              removeTransitionClass(el, moveClass);
+            }
+          });
+        }
+      });
+    },
 
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+    methods: {
+      hasMove: function hasMove (el, moveClass) {
+        /* istanbul ignore if */
+        if (!hasTransition) {
+          return false
+        }
+        /* istanbul ignore if */
+        if (this._hasMove) {
+          return this._hasMove
+        }
+        // Detect whether an element with the move class applied has
+        // CSS transitions. Since the element may be inside an entering
+        // transition at this very moment, we make a clone of it and remove
+        // all other transition classes applied to ensure only the move class
+        // is applied.
+        var clone = el.cloneNode();
+        if (el._transitionClasses) {
+          el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+        }
+        addClass(clone, moveClass);
+        clone.style.display = 'none';
+        this.$el.appendChild(clone);
+        var info = getTransitionInfo(clone);
+        this.$el.removeChild(clone);
+        return (this._hasMove = info.hasTransform)
       }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
+    }
+  };
+
+  function callPendingCbs (c) {
+    /* istanbul ignore if */
+    if (c.elm._moveCb) {
+      c.elm._moveCb();
+    }
+    /* istanbul ignore if */
+    if (c.elm._enterCb) {
+      c.elm._enterCb();
     }
   }
-}
 
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
+  function recordPosition (c) {
+    c.data.newPos = c.elm.getBoundingClientRect();
   }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-}
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        "development" !== 'production' &&
-        "development" !== 'test' &&
-        isChrome
+
+  function applyTranslation (c) {
+    var oldPos = c.data.pos;
+    var newPos = c.data.newPos;
+    var dx = oldPos.left - newPos.left;
+    var dy = oldPos.top - newPos.top;
+    if (dx || dy) {
+      c.data.moved = true;
+      var s = c.elm.style;
+      s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
+      s.transitionDuration = '0s';
+    }
+  }
+
+  var platformComponents = {
+    Transition: Transition,
+    TransitionGroup: TransitionGroup
+  };
+
+  /*  */
+
+  // install platform specific utils
+  Vue.config.mustUseProp = mustUseProp;
+  Vue.config.isReservedTag = isReservedTag;
+  Vue.config.isReservedAttr = isReservedAttr;
+  Vue.config.getTagNamespace = getTagNamespace;
+  Vue.config.isUnknownElement = isUnknownElement;
+
+  // install platform runtime directives & components
+  extend(Vue.options.directives, platformDirectives);
+  extend(Vue.options.components, platformComponents);
+
+  // install platform patch function
+  Vue.prototype.__patch__ = inBrowser ? patch : noop;
+
+  // public mount method
+  Vue.prototype.$mount = function (
+    el,
+    hydrating
+  ) {
+    el = el && inBrowser ? query(el) : undefined;
+    return mountComponent(this, el, hydrating)
+  };
+
+  // devtools global hook
+  /* istanbul ignore next */
+  if (inBrowser) {
+    setTimeout(function () {
+      if (config.devtools) {
+        if (devtools) {
+          devtools.emit('init', Vue);
+        } else if (
+          isChrome
+        ) {
+          console[console.info ? 'info' : 'log'](
+            'Download the Vue Devtools extension for a better development experience:\n' +
+            'https://github.com/vuejs/vue-devtools'
+          );
+        }
+      }
+      if (config.productionTip !== false &&
+        typeof console !== 'undefined'
       ) {
         console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
+          "You are running Vue in development mode.\n" +
+          "Make sure to turn on production mode when deploying for production.\n" +
+          "See more tips at https://vuejs.org/guide/deployment.html"
         );
       }
-    }
-    if ("development" !== 'production' &&
-      "development" !== 'test' &&
-      config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
-}
+    }, 0);
+  }
 
-/*  */
+  /*  */
 
-return Vue;
+  return Vue;
 
 })));
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index f48d75153df..f12d0bd2720 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.17-beta.0
+ * Vue.js v2.5.18-beta.0
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";var y=Object.freeze({});function L(t){return null==t}function N(t){return null!=t}function S(t){return!0===t}function j(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function M(t){return null!==t&&"object"==typeof t}var r=Object.prototype.toString;function u(t){return"[object Object]"===r.call(t)}function o(t){var e=parseFloat(String(t));return 0<=e&&Math.floor(e)===e&&isFinite(t)}function e(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function F(t){var e=parseFloat(t);return isNaN(e)?t:e}function s(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}s("slot,component",!0);var c=s("key,ref,slot,slot-scope,is");function l(t,e){if(t.length){var n=t.indexOf(e);if(-1<n)return t.splice(n,1)}}var n=Object.prototype.hasOwnProperty;function f(t,e){return n.call(t,e)}function t(e){var n=Object.create(null);return function(t){return n[t]||(n[t]=e(t))}}var i=/-(\w)/g,p=t(function(t){return t.replace(i,function(t,e){return e?e.toUpperCase():""})}),d=t(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),a=/\B([A-Z])/g,g=t(function(t){return t.replace(a,"-$1").toLowerCase()});var v=Function.prototype.bind?function(t,e){return t.bind(e)}:function(n,r){function t(t){var e=arguments.length;return e?1<e?n.apply(r,arguments):n.call(r,t):n.call(r)}return t._length=n.length,t};function h(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function m(t,e){for(var n in e)t[n]=e[n];return t}function _(t){for(var e={},n=0;n<t.length;n++)t[n]&&m(e,t[n]);return e}function b(t,e,n){}var C=function(t,e,n){return!1},A=function(t){return t};function w(e,n){if(e===n)return!0;var 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r=e.value,o=(n=oo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,zr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=oo(n)).data&&n.data.transition?(n.data.show=!0,r?zr(n,function(){t.style.display=t.__vOriginalDisplay}):Wr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},ao={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function so(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?so(ae(e.children)):t}function co(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[g(i)]=o[i];return e}function uo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var lo=function(t){return t.tag||ie(t)},fo=function(t){return"show"===t.name},po={name:"transition",props:ao,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(lo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=so(i);if(!a)return i;if(this._leaving)return uo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=co(this),u=this._vnode,l=so(u);if(a.data.directives&&a.data.directives.some(fo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!ie(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var 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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 6fd2351a6c8..43386c7300b 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -1,8063 +1,8028 @@
 (function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-	typeof define === 'function' && define.amd ? define(factory) :
-	(global.renderVueComponentToString = factory());
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global.renderVueComponentToString = factory());
 }(this, (function () { 'use strict';
 
-/*  */
+  /*  */
 
-var emptyObject = Object.freeze({});
+  var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
+  // These helpers produce better VM code in JS engines due to their
+  // explicitness and function inlining.
+  function isUndef (v) {
+    return v === undefined || v === null
+  }
 
-/**
- * Check if value is primitive
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value e.g. [object Object]
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert a input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if a attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether the object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
-/**
- * Convert an Array-like object to a real Array.
- */
-
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
-
-/**
- * Return same value
- */
-var identity = function (_) { return _; };
-
-/**
- * Generate a static keys string from compiler modules.
- */
-function genStaticKeys (modules) {
-  return modules.reduce(function (keys, m) {
-    return keys.concat(m.staticKeys || [])
-  }, []).join(',')
-}
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
+  function isDef (v) {
+    return v !== undefined && v !== null
   }
-}
-
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-/*  */
-
-var isAttr = makeMap(
-  'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
-  'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
-  'checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,' +
-  'name,contenteditable,contextmenu,controls,coords,data,datetime,default,' +
-  'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,' +
-  'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
-  'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
-  'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
-  'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
-  'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
-  'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
-  'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
-  'target,title,type,usemap,value,width,wrap'
-);
-
-/* istanbul ignore next */
-var isRenderableAttr = function (name) {
-  return (
-    isAttr(name) ||
-    name.indexOf('data-') === 0 ||
-    name.indexOf('aria-') === 0
-  )
-};
-var propsToAttrMap = {
-  acceptCharset: 'accept-charset',
-  className: 'class',
-  htmlFor: 'for',
-  httpEquiv: 'http-equiv'
-};
-
-var ESC = {
-  '<': '&lt;',
-  '>': '&gt;',
-  '"': '&quot;',
-  '&': '&amp;'
-};
-
-function escape (s) {
-  return s.replace(/[<>"&]/g, escapeChar)
-}
-
-function escapeChar (a) {
-  return ESC[a] || a
-}
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-
-
-
-
-
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
-
-/*  */
-
-function renderAttrs (node) {
-  var attrs = node.data.attrs;
-  var res = '';
-
-  var opts = node.parent && node.parent.componentOptions;
-  if (isUndef(opts) || opts.Ctor.options.inheritAttrs !== false) {
-    var parent = node.parent;
-    while (isDef(parent)) {
-      if (isDef(parent.data) && isDef(parent.data.attrs)) {
-        attrs = extend(extend({}, attrs), parent.data.attrs);
-      }
-      parent = parent.parent;
-    }
+
+  function isTrue (v) {
+    return v === true
   }
 
-  if (isUndef(attrs)) {
-    return res
+  function isFalse (v) {
+    return v === false
   }
 
-  for (var key in attrs) {
-    if (key === 'style') {
-      // leave it to the style module
-      continue
-    }
-    res += renderAttr(key, attrs[key]);
-  }
-  return res
-}
-
-function renderAttr (key, value) {
-  if (isBooleanAttr(key)) {
-    if (!isFalsyAttrValue(value)) {
-      return (" " + key + "=\"" + key + "\"")
-    }
-  } else if (isEnumeratedAttr(key)) {
-    return (" " + key + "=\"" + (isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true') + "\"")
-  } else if (!isFalsyAttrValue(value)) {
-    return (" " + key + "=\"" + (escape(String(value))) + "\"")
-  }
-  return ''
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
+  /**
+   * Check if value is primitive.
+   */
+  function isPrimitive (value) {
+    return (
+      typeof value === 'string' ||
+      typeof value === 'number' ||
+      // $flow-disable-line
+      typeof value === 'symbol' ||
+      typeof value === 'boolean'
+    )
+  }
 
-/*  */
+  /**
+   * Quick object check - this is primarily used to tell
+   * Objects from primitive values when we know the value
+   * is a JSON-compliant type.
+   */
+  function isObject (obj) {
+    return obj !== null && typeof obj === 'object'
+  }
 
-function renderDOMProps (node) {
-  var props = node.data.domProps;
-  var res = '';
+  /**
+   * Get the raw type string of a value, e.g., [object Object].
+   */
+  var _toString = Object.prototype.toString;
 
-  var parent = node.parent;
-  while (isDef(parent)) {
-    if (parent.data && parent.data.domProps) {
-      props = extend(extend({}, props), parent.data.domProps);
-    }
-    parent = parent.parent;
+  function toRawType (value) {
+    return _toString.call(value).slice(8, -1)
   }
 
-  if (isUndef(props)) {
-    return res
+  /**
+   * Strict object type check. Only returns true
+   * for plain JavaScript objects.
+   */
+  function isPlainObject (obj) {
+    return _toString.call(obj) === '[object Object]'
   }
 
-  var attrs = node.data.attrs;
-  for (var key in props) {
-    if (key === 'innerHTML') {
-      setText(node, props[key], true);
-    } else if (key === 'textContent') {
-      setText(node, props[key], false);
-    } else if (key === 'value' && node.tag === 'textarea') {
-      setText(node, props[key], false);
-    } else {
-      // $flow-disable-line (WTF?)
-      var attr = propsToAttrMap[key] || key.toLowerCase();
-      if (isRenderableAttr(attr) &&
-        // avoid rendering double-bound props/attrs twice
-        !(isDef(attrs) && isDef(attrs[attr]))
-      ) {
-        res += renderAttr(attr, props[key]);
-      }
-    }
+  /**
+   * Check if val is a valid array index.
+   */
+  function isValidArrayIndex (val) {
+    var n = parseFloat(String(val));
+    return n >= 0 && Math.floor(n) === n && isFinite(val)
   }
-  return res
-}
-
-function setText (node, text, raw) {
-  var child = new VNode(undefined, undefined, undefined, text);
-  child.raw = raw;
-  node.children = [child];
-}
-
-/*  */
 
-/**
- * Check if a string starts with $ or _
- */
+  /**
+   * Convert a value to a string that is actually rendered.
+   */
+  function toString (val) {
+    return val == null
+      ? ''
+      : typeof val === 'object'
+        ? JSON.stringify(val, null, 2)
+        : String(val)
+  }
 
+  /**
+   * Convert an input value to a number for persistence.
+   * If the conversion fails, return original string.
+   */
+  function toNumber (val) {
+    var n = parseFloat(val);
+    return isNaN(n) ? val : n
+  }
 
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
+  /**
+   * Make a map and return a function for checking if a key
+   * is in that map.
+   */
+  function makeMap (
+    str,
+    expectsLowerCase
+  ) {
+    var map = Object.create(null);
+    var list = str.split(',');
+    for (var i = 0; i < list.length; i++) {
+      map[list[i]] = true;
     }
+    return expectsLowerCase
+      ? function (val) { return map[val.toLowerCase()]; }
+      : function (val) { return map[val]; }
   }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
 
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+  /**
+   * Check if a tag is a built-in tag.
+   */
+  var isBuiltInTag = makeMap('slot,component', true);
 
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
+  /**
+   * Check if an attribute is a reserved attribute.
+   */
+  var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
-    return Set;
-  }());
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-var config = ({
   /**
-   * Option merge strategies (used in core/util/options)
+   * Remove an item from an array.
    */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
+  function remove (arr, item) {
+    if (arr.length) {
+      var index = arr.indexOf(item);
+      if (index > -1) {
+        return arr.splice(index, 1)
+      }
+    }
+  }
 
   /**
-   * Whether to suppress warnings.
+   * Check whether an object has the property.
    */
-  silent: false,
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
+  function hasOwn (obj, key) {
+    return hasOwnProperty.call(obj, key)
+  }
 
   /**
-   * Show production mode tip message on boot?
+   * Create a cached version of a pure function.
    */
-  productionTip: "development" !== 'production',
+  function cached (fn) {
+    var cache = Object.create(null);
+    return (function cachedFn (str) {
+      var hit = cache[str];
+      return hit || (cache[str] = fn(str))
+    })
+  }
 
   /**
-   * Whether to enable devtools
+   * Camelize a hyphen-delimited string.
    */
-  devtools: "development" !== 'production',
+  var camelizeRE = /-(\w)/g;
+  var camelize = cached(function (str) {
+    return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+  });
 
   /**
-   * Whether to record perf
+   * Capitalize a string.
    */
-  performance: false,
+  var capitalize = cached(function (str) {
+    return str.charAt(0).toUpperCase() + str.slice(1)
+  });
 
   /**
-   * Error handler for watcher errors
+   * Hyphenate a camelCase string.
    */
-  errorHandler: null,
+  var hyphenateRE = /\B([A-Z])/g;
+  var hyphenate = cached(function (str) {
+    return str.replace(hyphenateRE, '-$1').toLowerCase()
+  });
 
   /**
-   * Warn handler for watcher warns
+   * Simple bind polyfill for environments that do not support it,
+   * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+   * since native bind is now performant enough in most browsers.
+   * But removing it would mean breaking code that was able to run in
+   * PhantomJS 1.x, so this must be kept for backward compatibility.
    */
-  warnHandler: null,
+
+  /* istanbul ignore next */
+  function polyfillBind (fn, ctx) {
+    function boundFn (a) {
+      var l = arguments.length;
+      return l
+        ? l > 1
+          ? fn.apply(ctx, arguments)
+          : fn.call(ctx, a)
+        : fn.call(ctx)
+    }
+
+    boundFn._length = fn.length;
+    return boundFn
+  }
+
+  function nativeBind (fn, ctx) {
+    return fn.bind(ctx)
+  }
+
+  var bind = Function.prototype.bind
+    ? nativeBind
+    : polyfillBind;
 
   /**
-   * Ignore certain custom elements
+   * Mix properties into target object.
    */
-  ignoredElements: [],
+  function extend (to, _from) {
+    for (var key in _from) {
+      to[key] = _from[key];
+    }
+    return to
+  }
 
   /**
-   * Custom user key aliases for v-on
+   * Merge an Array of Objects into a single Object.
    */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
+  function toObject (arr) {
+    var res = {};
+    for (var i = 0; i < arr.length; i++) {
+      if (arr[i]) {
+        extend(res, arr[i]);
+      }
+    }
+    return res
+  }
+
+  /* eslint-disable no-unused-vars */
 
   /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
+   * Perform no operation.
+   * Stubbing args to make Flow happy without leaving useless transpiled code
+   * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
    */
-  isReservedTag: no,
+  function noop (a, b, c) {}
 
   /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
+   * Always return false.
    */
-  isReservedAttr: no,
+  var no = function (a, b, c) { return false; };
+
+  /* eslint-enable no-unused-vars */
 
   /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
+   * Return the same value.
    */
-  isUnknownElement: no,
+  var identity = function (_) { return _; };
 
   /**
-   * Get the namespace of an element
+   * Generate a string containing static keys from compiler modules.
    */
-  getTagNamespace: noop,
+  function genStaticKeys (modules) {
+    return modules.reduce(function (keys, m) {
+      return keys.concat(m.staticKeys || [])
+    }, []).join(',')
+  }
 
   /**
-   * Parse the real tag name for the specific platform.
+   * Check if two values are loosely equal - that is,
+   * if they are plain objects, do they have the same shape?
    */
-  parsePlatformTagName: identity,
+  function looseEqual (a, b) {
+    if (a === b) { return true }
+    var isObjectA = isObject(a);
+    var isObjectB = isObject(b);
+    if (isObjectA && isObjectB) {
+      try {
+        var isArrayA = Array.isArray(a);
+        var isArrayB = Array.isArray(b);
+        if (isArrayA && isArrayB) {
+          return a.length === b.length && a.every(function (e, i) {
+            return looseEqual(e, b[i])
+          })
+        } else if (a instanceof Date && b instanceof Date) {
+          return a.getTime() === b.getTime()
+        } else if (!isArrayA && !isArrayB) {
+          var keysA = Object.keys(a);
+          var keysB = Object.keys(b);
+          return keysA.length === keysB.length && keysA.every(function (key) {
+            return looseEqual(a[key], b[key])
+          })
+        } else {
+          /* istanbul ignore next */
+          return false
+        }
+      } catch (e) {
+        /* istanbul ignore next */
+        return false
+      }
+    } else if (!isObjectA && !isObjectB) {
+      return String(a) === String(b)
+    } else {
+      return false
+    }
+  }
 
   /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
+   * Return the first index at which a loosely equal value can be
+   * found in the array (if value is a plain object, the array must
+   * contain an object of the same shape), or -1 if it is not present.
    */
-  mustUseProp: no,
+  function looseIndexOf (arr, val) {
+    for (var i = 0; i < arr.length; i++) {
+      if (looseEqual(arr[i], val)) { return i }
+    }
+    return -1
+  }
 
   /**
-   * Exposed for legacy reasons
+   * Ensure a function is called only once.
    */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-})
+  function once (fn) {
+    var called = false;
+    return function () {
+      if (!called) {
+        called = true;
+        fn.apply(this, arguments);
+      }
+    }
+  }
 
-/*  */
+  /*  */
 
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
+  var isAttr = makeMap(
+    'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
+    'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
+    'checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,' +
+    'name,contenteditable,contextmenu,controls,coords,data,datetime,default,' +
+    'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,' +
+    'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
+    'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
+    'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
+    'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
+    'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
+    'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
+    'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
+    'target,title,type,usemap,value,width,wrap'
+  );
 
-{
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
+  var unsafeAttrCharRE = /[>/="'\u0009\u000a\u000c\u0020]/; // eslint-disable-line no-control-regex
+  var isSSRUnsafeAttr = function (name) {
+    return unsafeAttrCharRE.test(name)
+  };
 
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
+  /* istanbul ignore next */
+  var isRenderableAttr = function (name) {
+    return (
+      isAttr(name) ||
+      name.indexOf('data-') === 0 ||
+      name.indexOf('aria-') === 0
+    )
+  };
 
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
+  var propsToAttrMap = {
+    acceptCharset: 'accept-charset',
+    className: 'class',
+    htmlFor: 'for',
+    httpEquiv: 'http-equiv'
   };
 
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
+  var ESC = {
+    '<': '&lt;',
+    '>': '&gt;',
+    '"': '&quot;',
+    '&': '&amp;'
   };
 
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
+  function escape (s) {
+    return s.replace(/[<>"&]/g, escapeChar)
+  }
+
+  function escapeChar (a) {
+    return ESC[a] || a
+  }
 
+  /*  */
+
+  // these are reserved for web because they are directly compiled away
+  // during template compilation
+  var isReservedAttr = makeMap('style,class');
+
+  // attributes that should be using props for binding
+  var acceptValue = makeMap('input,textarea,option,select,progress');
+  var mustUseProp = function (tag, type, attr) {
     return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
+      (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+      (attr === 'selected' && tag === 'option') ||
+      (attr === 'checked' && tag === 'input') ||
+      (attr === 'muted' && tag === 'video')
     )
   };
 
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
+  var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+  var isBooleanAttr = makeMap(
+    'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+    'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+    'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+    'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+    'required,reversed,scoped,seamless,selected,sortable,translate,' +
+    'truespeed,typemustmatch,visible'
+  );
+
+  var isFalsyAttrValue = function (val) {
+    return val == null || val === false
   };
 
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
+  /*  */
+
+  function renderAttrs (node) {
+    var attrs = node.data.attrs;
+    var res = '';
+
+    var opts = node.parent && node.parent.componentOptions;
+    if (isUndef(opts) || opts.Ctor.options.inheritAttrs !== false) {
+      var parent = node.parent;
+      while (isDef(parent)) {
+        if (isDef(parent.data) && isDef(parent.data.attrs)) {
+          attrs = extend(extend({}, attrs), parent.data.attrs);
         }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+        parent = parent.parent;
+      }
     }
-  };
-}
-
-/*  */
-
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
 
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
+    if (isUndef(attrs)) {
+      return res
     }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-function toggleObserving (value) {
-  shouldObserve = value;
-}
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through each property and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment an target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src, keys) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment an target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if ("development" !== 'production' && customSetter) {
-        customSetter();
+
+    for (var key in attrs) {
+      if (isSSRUnsafeAttr(key)) {
+        continue
       }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
+      if (key === 'style') {
+        // leave it to the style module
+        continue
       }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
+      res += renderAttr(key, attrs[key]);
     }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if ("development" !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
+    return res
   }
-  if (!ob) {
-    target[key] = val;
-    return val
+
+  function renderAttr (key, value) {
+    if (isBooleanAttr(key)) {
+      if (!isFalsyAttrValue(value)) {
+        return (" " + key + "=\"" + key + "\"")
+      }
+    } else if (isEnumeratedAttr(key)) {
+      return (" " + key + "=\"" + (isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true') + "\"")
+    } else if (!isFalsyAttrValue(value)) {
+      return (" " + key + "=\"" + (escape(String(value))) + "\"")
+    }
+    return ''
   }
-  defineReactive(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
 
-/**
- * Delete a property and trigger change if necessary.
- */
+  /*  */
+
+  var VNode = function VNode (
+    tag,
+    data,
+    children,
+    text,
+    elm,
+    context,
+    componentOptions,
+    asyncFactory
+  ) {
+    this.tag = tag;
+    this.data = data;
+    this.children = children;
+    this.text = text;
+    this.elm = elm;
+    this.ns = undefined;
+    this.context = context;
+    this.fnContext = undefined;
+    this.fnOptions = undefined;
+    this.fnScopeId = undefined;
+    this.key = data && data.key;
+    this.componentOptions = componentOptions;
+    this.componentInstance = undefined;
+    this.parent = undefined;
+    this.raw = false;
+    this.isStatic = false;
+    this.isRootInsert = true;
+    this.isComment = false;
+    this.isCloned = false;
+    this.isOnce = false;
+    this.asyncFactory = asyncFactory;
+    this.asyncMeta = undefined;
+    this.isAsyncPlaceholder = false;
+  };
 
+  var prototypeAccessors = { child: { configurable: true } };
 
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
+  // DEPRECATED: alias for componentInstance for backwards compat.
+  /* istanbul ignore next */
+  prototypeAccessors.child.get = function () {
+    return this.componentInstance
+  };
 
-/*  */
+  Object.defineProperties( VNode.prototype, prototypeAccessors );
 
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
+  var createEmptyVNode = function (text) {
+    if ( text === void 0 ) text = '';
 
-/**
- * Options with restrictions
- */
-{
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
+    var node = new VNode();
+    node.text = text;
+    node.isComment = true;
+    return node
   };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
+
+  function createTextVNode (val) {
+    return new VNode(undefined, undefined, undefined, String(val))
+  }
+
+  // optimized shallow clone
+  // used for static nodes and slot nodes because they may be reused across
+  // multiple renders, cloning them avoids errors when DOM manipulations rely
+  // on their elm reference.
+  function cloneVNode (vnode) {
+    var cloned = new VNode(
+      vnode.tag,
+      vnode.data,
+      // #7975
+      // clone children array to avoid mutating original in case of cloning
+      // a child.
+      vnode.children && vnode.children.slice(),
+      vnode.text,
+      vnode.elm,
+      vnode.context,
+      vnode.componentOptions,
+      vnode.asyncFactory
+    );
+    cloned.ns = vnode.ns;
+    cloned.isStatic = vnode.isStatic;
+    cloned.key = vnode.key;
+    cloned.isComment = vnode.isComment;
+    cloned.fnContext = vnode.fnContext;
+    cloned.fnOptions = vnode.fnOptions;
+    cloned.fnScopeId = vnode.fnScopeId;
+    cloned.asyncMeta = vnode.asyncMeta;
+    cloned.isCloned = true;
+    return cloned
+  }
+
+  /*  */
+
+  function renderDOMProps (node) {
+    var props = node.data.domProps;
+    var res = '';
+
+    var parent = node.parent;
+    while (isDef(parent)) {
+      if (parent.data && parent.data.domProps) {
+        props = extend(extend({}, props), parent.data.domProps);
+      }
+      parent = parent.parent;
     }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
+
+    if (isUndef(props)) {
+      return res
+    }
+
+    var attrs = node.data.attrs;
+    for (var key in props) {
+      if (key === 'innerHTML') {
+        setText(node, props[key], true);
+      } else if (key === 'textContent') {
+        setText(node, props[key], false);
+      } else if (key === 'value' && node.tag === 'textarea') {
+        setText(node, props[key], false);
       } else {
-        return defaultData
+        // $flow-disable-line (WTF?)
+        var attr = propsToAttrMap[key] || key.toLowerCase();
+        if (isRenderableAttr(attr) &&
+          // avoid rendering double-bound props/attrs twice
+          !(isDef(attrs) && isDef(attrs[attr]))
+        ) {
+          res += renderAttr(attr, props[key]);
+        }
       }
     }
+    return res
   }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      "development" !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
 
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    "development" !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
+  function setText (node, text, raw) {
+    var child = new VNode(undefined, undefined, undefined, text);
+    child.raw = raw;
+    node.children = [child];
   }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
+
+  /*  */
+
+  /**
+   * Define a property.
+   */
+  function def (obj, key, val, enumerable) {
+    Object.defineProperty(obj, key, {
+      value: val,
+      enumerable: !!enumerable,
+      writable: true,
+      configurable: true
+    });
   }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
+
+  /*  */
+
+  // can we use __proto__?
+  var hasProto = '__proto__' in {};
+
+  // Browser environment sniffing
+  var inBrowser = typeof window !== 'undefined';
+  var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+  var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+  var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+  var isIE = UA && /msie|trident/.test(UA);
+  var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+  var isEdge = UA && UA.indexOf('edge/') > 0;
+  var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+  var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+  var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+  // Firefox has a "watch" function on Object.prototype...
+  var nativeWatch = ({}).watch;
+  if (inBrowser) {
+    try {
+      var opts = {};
+      Object.defineProperty(opts, 'passive', ({
+        get: function get () {
+        }
+      })); // https://github.com/facebook/flow/issues/285
+      window.addEventListener('test-passive', null, opts);
+    } catch (e) {}
   }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
+
+  // this needs to be lazy-evaled because vue may be required before
+  // vue-server-renderer can set VUE_ENV
+  var _isServer;
+  var isServerRendering = function () {
+    if (_isServer === undefined) {
+      /* istanbul ignore if */
+      if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+        // detect presence of vue-server-renderer and avoid
+        // Webpack shimming the process
+        _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
       } else {
-        warn('props must be strings when using array syntax.');
+        _isServer = false;
       }
     }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
+    return _isServer
+  };
+
+  // detect devtools
+  var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+  /* istanbul ignore next */
+  function isNative (Ctor) {
+    return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
   }
-}
 
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
+  var hasSymbol =
+    typeof Symbol !== 'undefined' && isNative(Symbol) &&
+    typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+  var _Set;
+  /* istanbul ignore if */ // $flow-disable-line
+  if (typeof Set !== 'undefined' && isNative(Set)) {
+    // use native Set when available.
+    _Set = Set;
+  } else {
+    // a non-standard Set polyfill that only works with primitive keys.
+    _Set = /*@__PURE__*/(function () {
+      function Set () {
+        this.set = Object.create(null);
       }
-    }
-  }
-}
+      Set.prototype.has = function has (key) {
+        return this.set[key] === true
+      };
+      Set.prototype.add = function add (key) {
+        this.set[key] = true;
+      };
+      Set.prototype.clear = function clear () {
+        this.set = Object.create(null);
+      };
 
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  {
-    checkComponents(child);
+      return Set;
+    }());
   }
 
-  if (typeof child === 'function') {
-    child = child.options;
-  }
+  var SSR_ATTR = 'data-server-rendered';
 
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
+  var ASSET_TYPES = [
+    'component',
+    'directive',
+    'filter'
+  ];
+
+  var LIFECYCLE_HOOKS = [
+    'beforeCreate',
+    'created',
+    'beforeMount',
+    'mounted',
+    'beforeUpdate',
+    'updated',
+    'beforeDestroy',
+    'destroyed',
+    'activated',
+    'deactivated',
+    'errorCaptured'
+  ];
+
+  /*  */
+
+
+
+  var config = ({
+    /**
+     * Option merge strategies (used in core/util/options)
+     */
+    // $flow-disable-line
+    optionMergeStrategies: Object.create(null),
+
+    /**
+     * Whether to suppress warnings.
+     */
+    silent: false,
+
+    /**
+     * Show production mode tip message on boot?
+     */
+    productionTip: "development" !== 'production',
+
+    /**
+     * Whether to enable devtools
+     */
+    devtools: "development" !== 'production',
+
+    /**
+     * Whether to record perf
+     */
+    performance: false,
+
+    /**
+     * Error handler for watcher errors
+     */
+    errorHandler: null,
+
+    /**
+     * Warn handler for watcher warns
+     */
+    warnHandler: null,
+
+    /**
+     * Ignore certain custom elements
+     */
+    ignoredElements: [],
+
+    /**
+     * Custom user key aliases for v-on
+     */
+    // $flow-disable-line
+    keyCodes: Object.create(null),
+
+    /**
+     * Check if a tag is reserved so that it cannot be registered as a
+     * component. This is platform-dependent and may be overwritten.
+     */
+    isReservedTag: no,
+
+    /**
+     * Check if an attribute is reserved so that it cannot be used as a component
+     * prop. This is platform-dependent and may be overwritten.
+     */
+    isReservedAttr: no,
+
+    /**
+     * Check if a tag is an unknown element.
+     * Platform-dependent.
+     */
+    isUnknownElement: no,
+
+    /**
+     * Get the namespace of an element
+     */
+    getTagNamespace: noop,
+
+    /**
+     * Parse the real tag name for the specific platform.
+     */
+    parsePlatformTagName: identity,
+
+    /**
+     * Check if an attribute must be bound using property, e.g. value
+     * Platform-dependent.
+     */
+    mustUseProp: no,
+
+    /**
+     * Perform updates asynchronously. Intended to be used by Vue Test Utils
+     * This will significantly reduce performance if set to false.
+     */
+    async: true,
+
+    /**
+     * Exposed for legacy reasons
+     */
+    _lifecycleHooks: LIFECYCLE_HOOKS
+  });
+
+  /*  */
+
+  var warn = noop;
+  var tip = noop;
+  var generateComponentTrace = (noop); // work around flow check
+  var formatComponentName = (noop);
+
+  {
+    var hasConsole = typeof console !== 'undefined';
+    var classifyRE = /(?:^|[-_])(\w)/g;
+    var classify = function (str) { return str
+      .replace(classifyRE, function (c) { return c.toUpperCase(); })
+      .replace(/[-_]/g, ''); };
+
+    warn = function (msg, vm) {
+      var trace = vm ? generateComponentTrace(vm) : '';
+
+      if (hasConsole && (!config.silent)) {
+        console.error(("[Vue warn]: " + msg + trace));
+      }
+    };
+
+    tip = function (msg, vm) {
+      if (hasConsole && (!config.silent)) {
+        console.warn("[Vue tip]: " + msg + (
+          vm ? generateComponentTrace(vm) : ''
+        ));
+      }
+    };
+
+    formatComponentName = function (vm, includeFile) {
+      if (vm.$root === vm) {
+        return '<Root>'
+      }
+      var options = typeof vm === 'function' && vm.cid != null
+        ? vm.options
+        : vm._isVue
+          ? vm.$options || vm.constructor.options
+          : vm || {};
+      var name = options.name || options._componentTag;
+      var file = options.__file;
+      if (!name && file) {
+        var match = file.match(/([^/\\]+)\.vue$/);
+        name = match && match[1];
+      }
+
+      return (
+        (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+        (file && includeFile !== false ? (" at " + file) : '')
+      )
+    };
+
+    var repeat = function (str, n) {
+      var res = '';
+      while (n) {
+        if (n % 2 === 1) { res += str; }
+        if (n > 1) { str += str; }
+        n >>= 1;
+      }
+      return res
+    };
+
+    generateComponentTrace = function (vm) {
+      if (vm._isVue && vm.$parent) {
+        var tree = [];
+        var currentRecursiveSequence = 0;
+        while (vm) {
+          if (tree.length > 0) {
+            var last = tree[tree.length - 1];
+            if (last.constructor === vm.constructor) {
+              currentRecursiveSequence++;
+              vm = vm.$parent;
+              continue
+            } else if (currentRecursiveSequence > 0) {
+              tree[tree.length - 1] = [last, currentRecursiveSequence];
+              currentRecursiveSequence = 0;
+            }
+          }
+          tree.push(vm);
+          vm = vm.$parent;
+        }
+        return '\n\nfound in\n\n' + tree
+          .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+              ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+              : formatComponentName(vm))); })
+          .join('\n')
+      } else {
+        return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+      }
+    };
+  }
+
+  /*  */
+
+  var uid = 0;
+
+  /**
+   * A dep is an observable that can have multiple
+   * directives subscribing to it.
+   */
+  var Dep = function Dep () {
+    this.id = uid++;
+    this.subs = [];
+  };
+
+  Dep.prototype.addSub = function addSub (sub) {
+    this.subs.push(sub);
+  };
+
+  Dep.prototype.removeSub = function removeSub (sub) {
+    remove(this.subs, sub);
+  };
+
+  Dep.prototype.depend = function depend () {
+    if (Dep.target) {
+      Dep.target.addDep(this);
+    }
+  };
+
+  Dep.prototype.notify = function notify () {
+    // stabilize the subscriber list first
+    var subs = this.subs.slice();
+    for (var i = 0, l = subs.length; i < l; i++) {
+      subs[i].update();
+    }
+  };
+
+  // the current target watcher being evaluated.
+  // this is globally unique because there could be only one
+  // watcher being evaluated at any time.
+  Dep.target = null;
+  var targetStack = [];
+
+  function pushTarget (target) {
+    targetStack.push(target);
+    Dep.target = target;
+  }
+
+  function popTarget () {
+    targetStack.pop();
+    Dep.target = targetStack[targetStack.length - 1];
+  }
+
+  /*
+   * not type checking this file because flow doesn't play well with
+   * dynamically accessing methods on Array prototype
+   */
+
+  var arrayProto = Array.prototype;
+  var arrayMethods = Object.create(arrayProto);
+
+  var methodsToPatch = [
+    'push',
+    'pop',
+    'shift',
+    'unshift',
+    'splice',
+    'sort',
+    'reverse'
+  ];
+
+  /**
+   * Intercept mutating methods and emit events
+   */
+  methodsToPatch.forEach(function (method) {
+    // cache original method
+    var original = arrayProto[method];
+    def(arrayMethods, method, function mutator () {
+      var args = [], len = arguments.length;
+      while ( len-- ) args[ len ] = arguments[ len ];
+
+      var result = original.apply(this, args);
+      var ob = this.__ob__;
+      var inserted;
+      switch (method) {
+        case 'push':
+        case 'unshift':
+          inserted = args;
+          break
+        case 'splice':
+          inserted = args.slice(2);
+          break
+      }
+      if (inserted) { ob.observeArray(inserted); }
+      // notify change
+      ob.dep.notify();
+      return result
+    });
+  });
+
+  /*  */
+
+  var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+  /**
+   * In some cases we may want to disable observation inside a component's
+   * update computation.
+   */
+  var shouldObserve = true;
+
+  function toggleObserving (value) {
+    shouldObserve = value;
+  }
+
+  /**
+   * Observer class that is attached to each observed
+   * object. Once attached, the observer converts the target
+   * object's property keys into getter/setters that
+   * collect dependencies and dispatch updates.
+   */
+  var Observer = function Observer (value) {
+    this.value = value;
+    this.dep = new Dep();
+    this.vmCount = 0;
+    def(value, '__ob__', this);
+    if (Array.isArray(value)) {
+      if (hasProto) {
+        protoAugment(value, arrayMethods);
+      } else {
+        copyAugment(value, arrayMethods, arrayKeys);
+      }
+      this.observeArray(value);
+    } else {
+      this.walk(value);
+    }
+  };
+
+  /**
+   * Walk through all properties and convert them into
+   * getter/setters. This method should only be called when
+   * value type is Object.
+   */
+  Observer.prototype.walk = function walk (obj) {
+    var keys = Object.keys(obj);
+    for (var i = 0; i < keys.length; i++) {
+      defineReactive$$1(obj, keys[i]);
+    }
+  };
+
+  /**
+   * Observe a list of Array items.
+   */
+  Observer.prototype.observeArray = function observeArray (items) {
+    for (var i = 0, l = items.length; i < l; i++) {
+      observe(items[i]);
+    }
+  };
+
+  // helpers
+
+  /**
+   * Augment a target Object or Array by intercepting
+   * the prototype chain using __proto__
+   */
+  function protoAugment (target, src) {
+    /* eslint-disable no-proto */
+    target.__proto__ = src;
+    /* eslint-enable no-proto */
+  }
+
+  /**
+   * Augment a target Object or Array by defining
+   * hidden properties.
+   */
+  /* istanbul ignore next */
+  function copyAugment (target, src, keys) {
+    for (var i = 0, l = keys.length; i < l; i++) {
+      var key = keys[i];
+      def(target, key, src[key]);
+    }
+  }
+
+  /**
+   * Attempt to create an observer instance for a value,
+   * returns the new observer if successfully observed,
+   * or the existing observer if the value already has one.
+   */
+  function observe (value, asRootData) {
+    if (!isObject(value) || value instanceof VNode) {
+      return
+    }
+    var ob;
+    if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+      ob = value.__ob__;
+    } else if (
+      shouldObserve &&
+      !isServerRendering() &&
+      (Array.isArray(value) || isPlainObject(value)) &&
+      Object.isExtensible(value) &&
+      !value._isVue
+    ) {
+      ob = new Observer(value);
+    }
+    if (asRootData && ob) {
+      ob.vmCount++;
+    }
+    return ob
+  }
+
+  /**
+   * Define a reactive property on an Object.
+   */
+  function defineReactive$$1 (
+    obj,
+    key,
+    val,
+    customSetter,
+    shallow
+  ) {
+    var dep = new Dep();
+
+    var property = Object.getOwnPropertyDescriptor(obj, key);
+    if (property && property.configurable === false) {
+      return
+    }
+
+    // cater for pre-defined getter/setters
+    var getter = property && property.get;
+    var setter = property && property.set;
+    if ((!getter || setter) && arguments.length === 2) {
+      val = obj[key];
+    }
+
+    var childOb = !shallow && observe(val);
+    Object.defineProperty(obj, key, {
+      enumerable: true,
+      configurable: true,
+      get: function reactiveGetter () {
+        var value = getter ? getter.call(obj) : val;
+        if (Dep.target) {
+          dep.depend();
+          if (childOb) {
+            childOb.dep.depend();
+            if (Array.isArray(value)) {
+              dependArray(value);
+            }
+          }
+        }
+        return value
+      },
+      set: function reactiveSetter (newVal) {
+        var value = getter ? getter.call(obj) : val;
+        /* eslint-disable no-self-compare */
+        if (newVal === value || (newVal !== newVal && value !== value)) {
+          return
+        }
+        /* eslint-enable no-self-compare */
+        if (customSetter) {
+          customSetter();
+        }
+        // #7981: for accessor properties without setter
+        if (getter && !setter) { return }
+        if (setter) {
+          setter.call(obj, newVal);
+        } else {
+          val = newVal;
+        }
+        childOb = !shallow && observe(newVal);
+        dep.notify();
+      }
+    });
+  }
+
+  /**
+   * Set a property on an object. Adds the new property and
+   * triggers change notification if the property doesn't
+   * already exist.
+   */
+  function set (target, key, val) {
+    if (isUndef(target) || isPrimitive(target)
+    ) {
+      warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+    }
+    if (Array.isArray(target) && isValidArrayIndex(key)) {
+      target.length = Math.max(target.length, key);
+      target.splice(key, 1, val);
+      return val
+    }
+    if (key in target && !(key in Object.prototype)) {
+      target[key] = val;
+      return val
+    }
+    var ob = (target).__ob__;
+    if (target._isVue || (ob && ob.vmCount)) {
+      warn(
+        'Avoid adding reactive properties to a Vue instance or its root $data ' +
+        'at runtime - declare it upfront in the data option.'
+      );
+      return val
+    }
+    if (!ob) {
+      target[key] = val;
+      return val
+    }
+    defineReactive$$1(ob.value, key, val);
+    ob.dep.notify();
+    return val
+  }
+
+  /**
+   * Collect dependencies on array elements when the array is touched, since
+   * we cannot intercept array element access like property getters.
+   */
+  function dependArray (value) {
+    for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+      e = value[i];
+      e && e.__ob__ && e.__ob__.dep.depend();
+      if (Array.isArray(e)) {
+        dependArray(e);
+      }
+    }
+  }
+
+  /*  */
+
+  /**
+   * Option overwriting strategies are functions that handle
+   * how to merge a parent option value and a child option
+   * value into the final value.
+   */
+  var strats = config.optionMergeStrategies;
+
+  /**
+   * Options with restrictions
+   */
+  {
+    strats.el = strats.propsData = function (parent, child, vm, key) {
+      if (!vm) {
+        warn(
+          "option \"" + key + "\" can only be used during instance " +
+          'creation with the `new` keyword.'
+        );
+      }
+      return defaultStrat(parent, child)
+    };
+  }
+
+  /**
+   * Helper that recursively merges two data objects together.
+   */
+  function mergeData (to, from) {
+    if (!from) { return to }
+    var key, toVal, fromVal;
+    var keys = Object.keys(from);
+    for (var i = 0; i < keys.length; i++) {
+      key = keys[i];
+      toVal = to[key];
+      fromVal = from[key];
+      if (!hasOwn(to, key)) {
+        set(to, key, fromVal);
+      } else if (
+        toVal !== fromVal &&
+        isPlainObject(toVal) &&
+        isPlainObject(fromVal)
+      ) {
+        mergeData(toVal, fromVal);
+      }
+    }
+    return to
+  }
+
+  /**
+   * Data
+   */
+  function mergeDataOrFn (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      // in a Vue.extend merge, both should be functions
+      if (!childVal) {
+        return parentVal
+      }
+      if (!parentVal) {
+        return childVal
+      }
+      // when parentVal & childVal are both present,
+      // we need to return a function that returns the
+      // merged result of both functions... no need to
+      // check if parentVal is a function here because
+      // it has to be a function to pass previous merges.
+      return function mergedDataFn () {
+        return mergeData(
+          typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+          typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+        )
+      }
+    } else {
+      return function mergedInstanceDataFn () {
+        // instance merge
+        var instanceData = typeof childVal === 'function'
+          ? childVal.call(vm, vm)
+          : childVal;
+        var defaultData = typeof parentVal === 'function'
+          ? parentVal.call(vm, vm)
+          : parentVal;
+        if (instanceData) {
+          return mergeData(instanceData, defaultData)
+        } else {
+          return defaultData
+        }
+      }
+    }
+  }
+
+  strats.data = function (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      if (childVal && typeof childVal !== 'function') {
+        warn(
+          'The "data" option should be a function ' +
+          'that returns a per-instance value in component ' +
+          'definitions.',
+          vm
+        );
+
+        return parentVal
+      }
+      return mergeDataOrFn(parentVal, childVal)
+    }
+
+    return mergeDataOrFn(parentVal, childVal, vm)
+  };
+
+  /**
+   * Hooks and props are merged as arrays.
+   */
+  function mergeHook (
+    parentVal,
+    childVal
+  ) {
+    return childVal
+      ? parentVal
+        ? parentVal.concat(childVal)
+        : Array.isArray(childVal)
+          ? childVal
+          : [childVal]
+      : parentVal
+  }
+
+  LIFECYCLE_HOOKS.forEach(function (hook) {
+    strats[hook] = mergeHook;
+  });
+
+  /**
+   * Assets
+   *
+   * When a vm is present (instance creation), we need to do
+   * a three-way merge between constructor options, instance
+   * options and parent options.
+   */
+  function mergeAssets (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    var res = Object.create(parentVal || null);
+    if (childVal) {
+      assertObjectType(key, childVal, vm);
+      return extend(res, childVal)
+    } else {
+      return res
+    }
+  }
+
+  ASSET_TYPES.forEach(function (type) {
+    strats[type + 's'] = mergeAssets;
+  });
+
+  /**
+   * Watchers.
+   *
+   * Watchers hashes should not overwrite one
+   * another, so we merge them as arrays.
+   */
+  strats.watch = function (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    // work around Firefox's Object.prototype.watch...
+    if (parentVal === nativeWatch) { parentVal = undefined; }
+    if (childVal === nativeWatch) { childVal = undefined; }
+    /* istanbul ignore if */
+    if (!childVal) { return Object.create(parentVal || null) }
+    {
+      assertObjectType(key, childVal, vm);
+    }
+    if (!parentVal) { return childVal }
+    var ret = {};
+    extend(ret, parentVal);
+    for (var key$1 in childVal) {
+      var parent = ret[key$1];
+      var child = childVal[key$1];
+      if (parent && !Array.isArray(parent)) {
+        parent = [parent];
+      }
+      ret[key$1] = parent
+        ? parent.concat(child)
+        : Array.isArray(child) ? child : [child];
+    }
+    return ret
+  };
+
+  /**
+   * Other object hashes.
+   */
+  strats.props =
+  strats.methods =
+  strats.inject =
+  strats.computed = function (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    if (childVal && "development" !== 'production') {
+      assertObjectType(key, childVal, vm);
+    }
+    if (!parentVal) { return childVal }
+    var ret = Object.create(null);
+    extend(ret, parentVal);
+    if (childVal) { extend(ret, childVal); }
+    return ret
+  };
+  strats.provide = mergeDataOrFn;
+
+  /**
+   * Default strategy.
+   */
+  var defaultStrat = function (parentVal, childVal) {
+    return childVal === undefined
+      ? parentVal
+      : childVal
+  };
+
+  /**
+   * Validate component names
+   */
+  function checkComponents (options) {
+    for (var key in options.components) {
+      validateComponentName(key);
+    }
+  }
+
+  function validateComponentName (name) {
+    if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+      warn(
+        'Invalid component name: "' + name + '". Component names ' +
+        'can only contain alphanumeric characters and the hyphen, ' +
+        'and must start with a letter.'
+      );
+    }
+    if (isBuiltInTag(name) || config.isReservedTag(name)) {
+      warn(
+        'Do not use built-in or reserved HTML elements as component ' +
+        'id: ' + name
+      );
+    }
+  }
+
+  /**
+   * Ensure all props option syntax are normalized into the
+   * Object-based format.
+   */
+  function normalizeProps (options, vm) {
+    var props = options.props;
+    if (!props) { return }
+    var res = {};
+    var i, val, name;
+    if (Array.isArray(props)) {
+      i = props.length;
+      while (i--) {
+        val = props[i];
+        if (typeof val === 'string') {
+          name = camelize(val);
+          res[name] = { type: null };
+        } else {
+          warn('props must be strings when using array syntax.');
+        }
+      }
+    } else if (isPlainObject(props)) {
+      for (var key in props) {
+        val = props[key];
+        name = camelize(key);
+        res[name] = isPlainObject(val)
+          ? val
+          : { type: val };
+      }
+    } else {
+      warn(
+        "Invalid value for option \"props\": expected an Array or an Object, " +
+        "but got " + (toRawType(props)) + ".",
+        vm
+      );
+    }
+    options.props = res;
+  }
+
+  /**
+   * Normalize all injections into Object-based format
+   */
+  function normalizeInject (options, vm) {
+    var inject = options.inject;
+    if (!inject) { return }
+    var normalized = options.inject = {};
+    if (Array.isArray(inject)) {
+      for (var i = 0; i < inject.length; i++) {
+        normalized[inject[i]] = { from: inject[i] };
+      }
+    } else if (isPlainObject(inject)) {
+      for (var key in inject) {
+        var val = inject[key];
+        normalized[key] = isPlainObject(val)
+          ? extend({ from: key }, val)
+          : { from: val };
+      }
+    } else {
+      warn(
+        "Invalid value for option \"inject\": expected an Array or an Object, " +
+        "but got " + (toRawType(inject)) + ".",
+        vm
+      );
+    }
+  }
+
+  /**
+   * Normalize raw function directives into object format.
+   */
+  function normalizeDirectives (options) {
+    var dirs = options.directives;
+    if (dirs) {
+      for (var key in dirs) {
+        var def = dirs[key];
+        if (typeof def === 'function') {
+          dirs[key] = { bind: def, update: def };
+        }
+      }
+    }
+  }
+
+  function assertObjectType (name, value, vm) {
+    if (!isPlainObject(value)) {
+      warn(
+        "Invalid value for option \"" + name + "\": expected an Object, " +
+        "but got " + (toRawType(value)) + ".",
+        vm
+      );
+    }
+  }
+
+  /**
+   * Merge two option objects into a new one.
+   * Core utility used in both instantiation and inheritance.
+   */
+  function mergeOptions (
+    parent,
+    child,
+    vm
+  ) {
+    {
+      checkComponents(child);
+    }
+
+    if (typeof child === 'function') {
+      child = child.options;
+    }
+
+    normalizeProps(child, vm);
+    normalizeInject(child, vm);
+    normalizeDirectives(child);
+    
+    // Apply extends and mixins on the child options,
+    // but only if it is a raw options object that isn't
+    // the result of another mergeOptions call.
+    // Only merged options has the _base property.
+    if (!child._base) {
+      if (child.extends) {
+        parent = mergeOptions(parent, child.extends, vm);
+      }
+      if (child.mixins) {
+        for (var i = 0, l = child.mixins.length; i < l; i++) {
+          parent = mergeOptions(parent, child.mixins[i], vm);
+        }
+      }
+    }
+
+    var options = {};
+    var key;
+    for (key in parent) {
+      mergeField(key);
+    }
+    for (key in child) {
+      if (!hasOwn(parent, key)) {
+        mergeField(key);
+      }
+    }
+    function mergeField (key) {
+      var strat = strats[key] || defaultStrat;
+      options[key] = strat(parent[key], child[key], vm, key);
+    }
+    return options
+  }
+
+  /**
+   * Resolve an asset.
+   * This function is used because child instances need access
+   * to assets defined in its ancestor chain.
+   */
+  function resolveAsset (
+    options,
+    type,
+    id,
+    warnMissing
+  ) {
+    /* istanbul ignore if */
+    if (typeof id !== 'string') {
+      return
+    }
+    var assets = options[type];
+    // check local registration variations first
+    if (hasOwn(assets, id)) { return assets[id] }
+    var camelizedId = camelize(id);
+    if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+    var PascalCaseId = capitalize(camelizedId);
+    if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+    // fallback to prototype chain
+    var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+    if (warnMissing && !res) {
+      warn(
+        'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+        options
+      );
+    }
+    return res
+  }
+
+  /*  */
+
+
+
+  function validateProp (
+    key,
+    propOptions,
+    propsData,
+    vm
+  ) {
+    var prop = propOptions[key];
+    var absent = !hasOwn(propsData, key);
+    var value = propsData[key];
+    // boolean casting
+    var booleanIndex = getTypeIndex(Boolean, prop.type);
+    if (booleanIndex > -1) {
+      if (absent && !hasOwn(prop, 'default')) {
+        value = false;
+      } else if (value === '' || value === hyphenate(key)) {
+        // only cast empty string / same name to boolean if
+        // boolean has higher priority
+        var stringIndex = getTypeIndex(String, prop.type);
+        if (stringIndex < 0 || booleanIndex < stringIndex) {
+          value = true;
+        }
+      }
+    }
+    // check default value
+    if (value === undefined) {
+      value = getPropDefaultValue(vm, prop, key);
+      // since the default value is a fresh copy,
+      // make sure to observe it.
+      var prevShouldObserve = shouldObserve;
+      toggleObserving(true);
+      observe(value);
+      toggleObserving(prevShouldObserve);
+    }
+    {
+      assertProp(prop, key, value, vm, absent);
+    }
+    return value
+  }
+
+  /**
+   * Get the default value of a prop.
+   */
+  function getPropDefaultValue (vm, prop, key) {
+    // no default, return undefined
+    if (!hasOwn(prop, 'default')) {
+      return undefined
+    }
+    var def = prop.default;
+    // warn against non-factory defaults for Object & Array
+    if (isObject(def)) {
+      warn(
+        'Invalid default value for prop "' + key + '": ' +
+        'Props with type Object/Array must use a factory function ' +
+        'to return the default value.',
+        vm
+      );
+    }
+    // the raw prop value was also undefined from previous render,
+    // return previous default value to avoid unnecessary watcher trigger
+    if (vm && vm.$options.propsData &&
+      vm.$options.propsData[key] === undefined &&
+      vm._props[key] !== undefined
+    ) {
+      return vm._props[key]
+    }
+    // call factory function for non-Function types
+    // a value is Function if its prototype is function even across different execution context
+    return typeof def === 'function' && getType(prop.type) !== 'Function'
+      ? def.call(vm)
+      : def
+  }
+
+  /**
+   * Assert whether a prop is valid.
+   */
+  function assertProp (
+    prop,
+    name,
+    value,
+    vm,
+    absent
+  ) {
+    if (prop.required && absent) {
+      warn(
+        'Missing required prop: "' + name + '"',
+        vm
+      );
+      return
+    }
+    if (value == null && !prop.required) {
+      return
+    }
+    var type = prop.type;
+    var valid = !type || type === true;
+    var expectedTypes = [];
+    if (type) {
+      if (!Array.isArray(type)) {
+        type = [type];
+      }
+      for (var i = 0; i < type.length && !valid; i++) {
+        var assertedType = assertType(value, type[i]);
+        expectedTypes.push(assertedType.expectedType || '');
+        valid = assertedType.valid;
+      }
+    }
+
+    if (!valid) {
+      warn(
+        getInvalidTypeMessage(name, value, expectedTypes),
+        vm
+      );
+      return
+    }
+    var validator = prop.validator;
+    if (validator) {
+      if (!validator(value)) {
+        warn(
+          'Invalid prop: custom validator check failed for prop "' + name + '".',
+          vm
+        );
+      }
+    }
+  }
+
+  var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+  function assertType (value, type) {
+    var valid;
+    var expectedType = getType(type);
+    if (simpleCheckRE.test(expectedType)) {
+      var t = typeof value;
+      valid = t === expectedType.toLowerCase();
+      // for primitive wrapper objects
+      if (!valid && t === 'object') {
+        valid = value instanceof type;
+      }
+    } else if (expectedType === 'Object') {
+      valid = isPlainObject(value);
+    } else if (expectedType === 'Array') {
+      valid = Array.isArray(value);
+    } else {
+      valid = value instanceof type;
+    }
+    return {
+      valid: valid,
+      expectedType: expectedType
+    }
+  }
+
+  /**
+   * Use function string name to check built-in types,
+   * because a simple equality check will fail when running
+   * across different vms / iframes.
+   */
+  function getType (fn) {
+    var match = fn && fn.toString().match(/^\s*function (\w+)/);
+    return match ? match[1] : ''
+  }
+
+  function isSameType (a, b) {
+    return getType(a) === getType(b)
+  }
+
+  function getTypeIndex (type, expectedTypes) {
+    if (!Array.isArray(expectedTypes)) {
+      return isSameType(expectedTypes, type) ? 0 : -1
+    }
+    for (var i = 0, len = expectedTypes.length; i < len; i++) {
+      if (isSameType(expectedTypes[i], type)) {
+        return i
+      }
+    }
+    return -1
+  }
+
+  function getInvalidTypeMessage (name, value, expectedTypes) {
+    var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+      " Expected " + (expectedTypes.map(capitalize).join(', '));
+    var expectedType = expectedTypes[0];
+    var receivedType = toRawType(value);
+    var expectedValue = styleValue(value, expectedType);
+    var receivedValue = styleValue(value, receivedType);
+    // check if we need to specify expected value
+    if (expectedTypes.length === 1 &&
+        isExplicable(expectedType) &&
+        !isBoolean(expectedType, receivedType)) {
+      message += " with value " + expectedValue;
+    }
+    message += ", got " + receivedType + " ";
+    // check if we need to specify received value
+    if (isExplicable(receivedType)) {
+      message += "with value " + receivedValue + ".";
+    }
+    return message
+  }
+
+  function styleValue (value, type) {
+    if (type === 'String') {
+      return ("\"" + value + "\"")
+    } else if (type === 'Number') {
+      return ("" + (Number(value)))
+    } else {
+      return ("" + value)
+    }
+  }
+
+  function isExplicable (value) {
+    var explicitTypes = ['string', 'number', 'boolean'];
+    return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+  }
+
+  function isBoolean () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+  }
+
+  /*  */
+
+  function handleError (err, vm, info) {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
+          }
+        }
+      }
+    }
+    globalHandleError(err, vm, info);
+  }
+
+  function globalHandleError (err, vm, info) {
+    logError(err, vm, info);
+  }
+
+  function logError (err, vm, info) {
+    {
+      warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+    }
+    /* istanbul ignore else */
+    if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+      console.error(err);
+    } else {
+      throw err
+    }
+  }
+
+  /*  */
+
+  var callbacks = [];
+
+  function flushCallbacks () {
+    var copies = callbacks.slice(0);
+    callbacks.length = 0;
+    for (var i = 0; i < copies.length; i++) {
+      copies[i]();
+    }
+  }
+
+  // Determine (macro) task defer implementation.
+  // Technically setImmediate should be the ideal choice, but it's only available
+  // in IE. The only polyfill that consistently queues the callback after all DOM
+  // events triggered in the same loop is by using MessageChannel.
+  /* istanbul ignore if */
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
+  )) {
+    var channel = new MessageChannel();
+    channel.port1.onmessage = flushCallbacks;
+  }
+
+  // Determine microtask defer implementation.
+  /* istanbul ignore next, $flow-disable-line */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) ;
+
+  /*  */
+
+  /*  */
+
+  function genClassForVnode (vnode) {
+    var data = vnode.data;
+    var parentNode = vnode;
+    var childNode = vnode;
+    while (isDef(childNode.componentInstance)) {
+      childNode = childNode.componentInstance._vnode;
+      if (childNode && childNode.data) {
+        data = mergeClassData(childNode.data, data);
+      }
+    }
+    while (isDef(parentNode = parentNode.parent)) {
+      if (parentNode && parentNode.data) {
+        data = mergeClassData(data, parentNode.data);
+      }
+    }
+    return renderClass(data.staticClass, data.class)
+  }
+
+  function mergeClassData (child, parent) {
+    return {
+      staticClass: concat(child.staticClass, parent.staticClass),
+      class: isDef(child.class)
+        ? [child.class, parent.class]
+        : parent.class
+    }
+  }
+
+  function renderClass (
+    staticClass,
+    dynamicClass
+  ) {
+    if (isDef(staticClass) || isDef(dynamicClass)) {
+      return concat(staticClass, stringifyClass(dynamicClass))
+    }
+    /* istanbul ignore next */
+    return ''
+  }
+
+  function concat (a, b) {
+    return a ? b ? (a + ' ' + b) : a : (b || '')
+  }
+
+  function stringifyClass (value) {
+    if (Array.isArray(value)) {
+      return stringifyArray(value)
+    }
+    if (isObject(value)) {
+      return stringifyObject(value)
+    }
+    if (typeof value === 'string') {
+      return value
+    }
+    /* istanbul ignore next */
+    return ''
+  }
+
+  function stringifyArray (value) {
+    var res = '';
+    var stringified;
+    for (var i = 0, l = value.length; i < l; i++) {
+      if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+        if (res) { res += ' '; }
+        res += stringified;
+      }
+    }
+    return res
+  }
+
+  function stringifyObject (value) {
+    var res = '';
+    for (var key in value) {
+      if (value[key]) {
+        if (res) { res += ' '; }
+        res += key;
+      }
+    }
+    return res
+  }
+
+  /*  */
+
+  var isHTMLTag = makeMap(
+    'html,body,base,head,link,meta,style,title,' +
+    'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+    'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+    'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+    's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+    'embed,object,param,source,canvas,script,noscript,del,ins,' +
+    'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+    'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+    'output,progress,select,textarea,' +
+    'details,dialog,menu,menuitem,summary,' +
+    'content,element,shadow,template,blockquote,iframe,tfoot'
+  );
+
+  // this map is intentionally selective, only covering SVG elements that may
+  // contain child elements.
+  var isSVG = makeMap(
+    'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+    'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+    'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+    true
+  );
+
+  var isPreTag = function (tag) { return tag === 'pre'; };
+
+  var isReservedTag = function (tag) {
+    return isHTMLTag(tag) || isSVG(tag)
+  };
+
+  function getTagNamespace (tag) {
+    if (isSVG(tag)) {
+      return 'svg'
+    }
+    // basic support for MathML
+    // note it doesn't support other MathML elements being component roots
+    if (tag === 'math') {
+      return 'math'
+    }
+  }
+
+  var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+  /*  */
+
+  /*  */
+
+  function renderClass$1 (node) {
+    var classList = genClassForVnode(node);
+    if (classList !== '') {
+      return (" class=\"" + (escape(classList)) + "\"")
+    }
+  }
+
+  /*  */
+
+  var parseStyleText = cached(function (cssText) {
+    var res = {};
+    var listDelimiter = /;(?![^(]*\))/g;
+    var propertyDelimiter = /:(.+)/;
+    cssText.split(listDelimiter).forEach(function (item) {
+      if (item) {
+        var tmp = item.split(propertyDelimiter);
+        tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+      }
+    });
+    return res
+  });
+
+  // merge static and dynamic style data on the same vnode
+  function normalizeStyleData (data) {
+    var style = normalizeStyleBinding(data.style);
+    // static style is pre-processed into an object during compilation
+    // and is always a fresh object, so it's safe to merge into it
+    return data.staticStyle
+      ? extend(data.staticStyle, style)
+      : style
+  }
+
+  // normalize possible array / string values into Object
+  function normalizeStyleBinding (bindingStyle) {
+    if (Array.isArray(bindingStyle)) {
+      return toObject(bindingStyle)
+    }
+    if (typeof bindingStyle === 'string') {
+      return parseStyleText(bindingStyle)
+    }
+    return bindingStyle
+  }
+
+  /**
+   * parent component style should be after child's
+   * so that parent component's style could override it
+   */
+  function getStyle (vnode, checkChild) {
+    var res = {};
+    var styleData;
+
+    if (checkChild) {
+      var childNode = vnode;
+      while (childNode.componentInstance) {
+        childNode = childNode.componentInstance._vnode;
+        if (
+          childNode && childNode.data &&
+          (styleData = normalizeStyleData(childNode.data))
+        ) {
+          extend(res, styleData);
+        }
+      }
+    }
+
+    if ((styleData = normalizeStyleData(vnode.data))) {
+      extend(res, styleData);
+    }
+
+    var parentNode = vnode;
+    while ((parentNode = parentNode.parent)) {
+      if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+        extend(res, styleData);
+      }
+    }
+    return res
+  }
+
+  /*  */
+
+  function genStyle (style) {
+    var styleText = '';
+    for (var key in style) {
+      var value = style[key];
+      var hyphenatedKey = hyphenate(key);
+      if (Array.isArray(value)) {
+        for (var i = 0, len = value.length; i < len; i++) {
+          styleText += hyphenatedKey + ":" + (value[i]) + ";";
+        }
+      } else {
+        styleText += hyphenatedKey + ":" + value + ";";
+      }
+    }
+    return styleText
+  }
+
+  function renderStyle (vnode) {
+    var styleText = genStyle(getStyle(vnode, false));
+    if (styleText !== '') {
+      return (" style=" + (JSON.stringify(escape(styleText))))
+    }
+  }
+
+  var modules = [
+    renderAttrs,
+    renderDOMProps,
+    renderClass$1,
+    renderStyle
+  ];
+
+  /*  */
+
+  function show (node, dir) {
+    if (!dir.value) {
+      var style = node.data.style || (node.data.style = {});
+      if (Array.isArray(style)) {
+        style.push({ display: 'none' });
+      } else {
+        style.display = 'none';
+      }
+    }
+  }
+
+  /*  */
+
+  // this is only applied for <select v-model> because it is the only edge case
+  // that must be done at runtime instead of compile time.
+  function model (node, dir) {
+    if (!node.children) { return }
+    var value = dir.value;
+    var isMultiple = node.data.attrs && node.data.attrs.multiple;
+    for (var i = 0, l = node.children.length; i < l; i++) {
+      var option = node.children[i];
+      if (option.tag === 'option') {
+        if (isMultiple) {
+          var selected =
+            Array.isArray(value) &&
+            (looseIndexOf(value, getValue(option)) > -1);
+          if (selected) {
+            setSelected(option);
+          }
+        } else {
+          if (looseEqual(value, getValue(option))) {
+            setSelected(option);
+            return
+          }
+        }
+      }
+    }
+  }
+
+  function getValue (option) {
+    var data = option.data || {};
+    return (
+      (data.attrs && data.attrs.value) ||
+      (data.domProps && data.domProps.value) ||
+      (option.children && option.children[0] && option.children[0].text)
+    )
+  }
+
+  function setSelected (option) {
+    var data = option.data || (option.data = {});
+    var attrs = data.attrs || (data.attrs = {});
+    attrs.selected = '';
+  }
+
+  var directives = {
+    show: show,
+    model: model
+  };
+
+  /*  */
+
+  var isUnaryTag = makeMap(
+    'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+    'link,meta,param,source,track,wbr'
+  );
+
+  // Elements that you can, intentionally, leave open
+  // (and which close themselves)
+  var canBeLeftOpenTag = makeMap(
+    'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+  );
+
+  // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+  // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+  var isNonPhrasingTag = makeMap(
+    'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+    'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+    'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+    'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+    'title,tr,track'
+  );
+
+  /*  */
+
+  var MAX_STACK_DEPTH = 900;
+  var noop$1 = function (_) { return _; };
+
+  var defer = typeof process !== 'undefined' && process.nextTick
+    ? process.nextTick
+    : typeof Promise !== 'undefined'
+      ? function (fn) { return Promise.resolve().then(fn); }
+      : typeof setTimeout !== 'undefined'
+        ? setTimeout
+        : noop$1;
+
+  if (defer === noop$1) {
+    throw new Error(
+      'Your JavaScript runtime does not support any asynchronous primitives ' +
+      'that are required by vue-server-renderer. Please use a polyfill for ' +
+      'either Promise or setTimeout.'
+    )
+  }
+
+  function createWriteFunction (
+    write,
+    onError
+  ) {
+    var stackDepth = 0;
+    var cachedWrite = function (text, next) {
+      if (text && cachedWrite.caching) {
+        cachedWrite.cacheBuffer[cachedWrite.cacheBuffer.length - 1] += text;
+      }
+      var waitForNext = write(text, next);
+      if (waitForNext !== true) {
+        if (stackDepth >= MAX_STACK_DEPTH) {
+          defer(function () {
+            try { next(); } catch (e) {
+              onError(e);
+            }
+          });
+        } else {
+          stackDepth++;
+          next();
+          stackDepth--;
+        }
+      }
+    };
+    cachedWrite.caching = false;
+    cachedWrite.cacheBuffer = [];
+    cachedWrite.componentBuffer = [];
+    return cachedWrite
+  }
+
+  /*  */
+
+
+
+  var RenderContext = function RenderContext (options) {
+    this.userContext = options.userContext;
+    this.activeInstance = options.activeInstance;
+    this.renderStates = [];
+
+    this.write = options.write;
+    this.done = options.done;
+    this.renderNode = options.renderNode;
+
+    this.isUnaryTag = options.isUnaryTag;
+    this.modules = options.modules;
+    this.directives = options.directives;
+
+    var cache = options.cache;
+    if (cache && (!cache.get || !cache.set)) {
+      throw new Error('renderer cache must implement at least get & set.')
+    }
+    this.cache = cache;
+    this.get = cache && normalizeAsync(cache, 'get');
+    this.has = cache && normalizeAsync(cache, 'has');
+
+    this.next = this.next.bind(this);
+  };
+
+  RenderContext.prototype.next = function next () {
+    // eslint-disable-next-line
+    while (true) {
+      var lastState = this.renderStates[this.renderStates.length - 1];
+      if (isUndef(lastState)) {
+        return this.done()
+      }
+      /* eslint-disable no-case-declarations */
+      switch (lastState.type) {
+        case 'Element':
+        case 'Fragment':
+          var children = lastState.children;
+        var total = lastState.total;
+          var rendered = lastState.rendered++;
+          if (rendered < total) {
+            return this.renderNode(children[rendered], false, this)
+          } else {
+            this.renderStates.pop();
+            if (lastState.type === 'Element') {
+              return this.write(lastState.endTag, this.next)
+            }
+          }
+          break
+        case 'Component':
+          this.renderStates.pop();
+          this.activeInstance = lastState.prevActive;
+          break
+        case 'ComponentWithCache':
+          this.renderStates.pop();
+          var buffer = lastState.buffer;
+        var bufferIndex = lastState.bufferIndex;
+        var componentBuffer = lastState.componentBuffer;
+        var key = lastState.key;
+          var result = {
+            html: buffer[bufferIndex],
+            components: componentBuffer[bufferIndex]
+          };
+          this.cache.set(key, result);
+          if (bufferIndex === 0) {
+            // this is a top-level cached component,
+            // exit caching mode.
+            this.write.caching = false;
+          } else {
+            // parent component is also being cached,
+            // merge self into parent's result
+            buffer[bufferIndex - 1] += result.html;
+            var prev = componentBuffer[bufferIndex - 1];
+            result.components.forEach(function (c) { return prev.add(c); });
+          }
+          buffer.length = bufferIndex;
+          componentBuffer.length = bufferIndex;
+          break
+      }
+    }
+  };
+
+  function normalizeAsync (cache, method) {
+    var fn = cache[method];
+    if (isUndef(fn)) {
+      return
+    } else if (fn.length > 1) {
+      return function (key, cb) { return fn.call(cache, key, cb); }
+    } else {
+      return function (key, cb) { return cb(fn.call(cache, key)); }
+    }
+  }
+
+  /*  */
+
+  var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+  function parseFilters (exp) {
+    var inSingle = false;
+    var inDouble = false;
+    var inTemplateString = false;
+    var inRegex = false;
+    var curly = 0;
+    var square = 0;
+    var paren = 0;
+    var lastFilterIndex = 0;
+    var c, prev, i, expression, filters;
+
+    for (i = 0; i < exp.length; i++) {
+      prev = c;
+      c = exp.charCodeAt(i);
+      if (inSingle) {
+        if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+      } else if (inDouble) {
+        if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+      } else if (inTemplateString) {
+        if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+      } else if (inRegex) {
+        if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+      } else if (
+        c === 0x7C && // pipe
+        exp.charCodeAt(i + 1) !== 0x7C &&
+        exp.charCodeAt(i - 1) !== 0x7C &&
+        !curly && !square && !paren
+      ) {
+        if (expression === undefined) {
+          // first filter, end of expression
+          lastFilterIndex = i + 1;
+          expression = exp.slice(0, i).trim();
+        } else {
+          pushFilter();
+        }
+      } else {
+        switch (c) {
+          case 0x22: inDouble = true; break         // "
+          case 0x27: inSingle = true; break         // '
+          case 0x60: inTemplateString = true; break // `
+          case 0x28: paren++; break                 // (
+          case 0x29: paren--; break                 // )
+          case 0x5B: square++; break                // [
+          case 0x5D: square--; break                // ]
+          case 0x7B: curly++; break                 // {
+          case 0x7D: curly--; break                 // }
+        }
+        if (c === 0x2f) { // /
+          var j = i - 1;
+          var p = (void 0);
+          // find first non-whitespace prev char
+          for (; j >= 0; j--) {
+            p = exp.charAt(j);
+            if (p !== ' ') { break }
+          }
+          if (!p || !validDivisionCharRE.test(p)) {
+            inRegex = true;
+          }
+        }
+      }
+    }
+
+    if (expression === undefined) {
+      expression = exp.slice(0, i).trim();
+    } else if (lastFilterIndex !== 0) {
+      pushFilter();
+    }
+
+    function pushFilter () {
+      (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+      lastFilterIndex = i + 1;
+    }
+
+    if (filters) {
+      for (i = 0; i < filters.length; i++) {
+        expression = wrapFilter(expression, filters[i]);
+      }
+    }
+
+    return expression
+  }
+
+  function wrapFilter (exp, filter) {
+    var i = filter.indexOf('(');
+    if (i < 0) {
+      // _f: resolveFilter
+      return ("_f(\"" + filter + "\")(" + exp + ")")
+    } else {
+      var name = filter.slice(0, i);
+      var args = filter.slice(i + 1);
+      return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
+    }
+  }
+
+  /*  */
+
+  var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
+  var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+  var buildRegex = cached(function (delimiters) {
+    var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+    var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+    return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+  });
+
+
+
+  function parseText (
+    text,
+    delimiters
+  ) {
+    var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+    if (!tagRE.test(text)) {
+      return
+    }
+    var tokens = [];
+    var rawTokens = [];
+    var lastIndex = tagRE.lastIndex = 0;
+    var match, index, tokenValue;
+    while ((match = tagRE.exec(text))) {
+      index = match.index;
+      // push text token
+      if (index > lastIndex) {
+        rawTokens.push(tokenValue = text.slice(lastIndex, index));
+        tokens.push(JSON.stringify(tokenValue));
+      }
+      // tag token
+      var exp = parseFilters(match[1].trim());
+      tokens.push(("_s(" + exp + ")"));
+      rawTokens.push({ '@binding': exp });
+      lastIndex = index + match[0].length;
+    }
+    if (lastIndex < text.length) {
+      rawTokens.push(tokenValue = text.slice(lastIndex));
+      tokens.push(JSON.stringify(tokenValue));
+    }
+    return {
+      expression: tokens.join('+'),
+      tokens: rawTokens
+    }
+  }
+
+  /*  */
+
+  function baseWarn (msg) {
+    console.error(("[Vue compiler]: " + msg));
+  }
+
+  function pluckModuleFunction (
+    modules,
+    key
+  ) {
+    return modules
+      ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+      : []
+  }
+
+  function addProp (el, name, value) {
+    (el.props || (el.props = [])).push({ name: name, value: value });
+    el.plain = false;
+  }
+
+  function addAttr (el, name, value) {
+    (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+    el.plain = false;
+  }
+
+  // add a raw attr (use this in preTransforms)
+  function addRawAttr (el, name, value) {
+    el.attrsMap[name] = value;
+    el.attrsList.push({ name: name, value: value });
+  }
+
+  function addDirective (
+    el,
+    name,
+    rawName,
+    value,
+    arg,
+    modifiers
+  ) {
+    (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+    el.plain = false;
+  }
+
+  function addHandler (
+    el,
+    name,
+    value,
+    modifiers,
+    important,
+    warn
+  ) {
+    modifiers = modifiers || emptyObject;
+    // warn prevent and passive modifier
+    /* istanbul ignore if */
+    if (
+      warn &&
+      modifiers.prevent && modifiers.passive
+    ) {
+      warn(
+        'passive and prevent can\'t be used together. ' +
+        'Passive handler can\'t prevent default event.'
+      );
+    }
+
+    // normalize click.right and click.middle since they don't actually fire
+    // this is technically browser-specific, but at least for now browsers are
+    // the only target envs that have right/middle clicks.
+    if (name === 'click') {
+      if (modifiers.right) {
+        name = 'contextmenu';
+        delete modifiers.right;
+      } else if (modifiers.middle) {
+        name = 'mouseup';
+      }
+    }
+
+    // check capture modifier
+    if (modifiers.capture) {
+      delete modifiers.capture;
+      name = '!' + name; // mark the event as captured
+    }
+    if (modifiers.once) {
+      delete modifiers.once;
+      name = '~' + name; // mark the event as once
+    }
+    /* istanbul ignore if */
+    if (modifiers.passive) {
+      delete modifiers.passive;
+      name = '&' + name; // mark the event as passive
+    }
+
+    var events;
+    if (modifiers.native) {
+      delete modifiers.native;
+      events = el.nativeEvents || (el.nativeEvents = {});
+    } else {
+      events = el.events || (el.events = {});
+    }
+
+    var newHandler = {
+      value: value.trim()
+    };
+    if (modifiers !== emptyObject) {
+      newHandler.modifiers = modifiers;
+    }
+
+    var handlers = events[name];
+    /* istanbul ignore if */
+    if (Array.isArray(handlers)) {
+      important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+    } else if (handlers) {
+      events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+    } else {
+      events[name] = newHandler;
+    }
+
+    el.plain = false;
+  }
+
+  function getBindingAttr (
+    el,
+    name,
+    getStatic
+  ) {
+    var dynamicValue =
+      getAndRemoveAttr(el, ':' + name) ||
+      getAndRemoveAttr(el, 'v-bind:' + name);
+    if (dynamicValue != null) {
+      return parseFilters(dynamicValue)
+    } else if (getStatic !== false) {
+      var staticValue = getAndRemoveAttr(el, name);
+      if (staticValue != null) {
+        return JSON.stringify(staticValue)
+      }
+    }
+  }
+
+  // note: this only removes the attr from the Array (attrsList) so that it
+  // doesn't get processed by processAttrs.
+  // By default it does NOT remove it from the map (attrsMap) because the map is
+  // needed during codegen.
+  function getAndRemoveAttr (
+    el,
+    name,
+    removeFromMap
+  ) {
+    var val;
+    if ((val = el.attrsMap[name]) != null) {
+      var list = el.attrsList;
+      for (var i = 0, l = list.length; i < l; i++) {
+        if (list[i].name === name) {
+          list.splice(i, 1);
+          break
+        }
+      }
+    }
+    if (removeFromMap) {
+      delete el.attrsMap[name];
+    }
+    return val
+  }
+
+  /*  */
+
+  function transformNode (el, options) {
+    var warn = options.warn || baseWarn;
+    var staticClass = getAndRemoveAttr(el, 'class');
+    if (staticClass) {
+      var res = parseText(staticClass, options.delimiters);
+      if (res) {
+        warn(
+          "class=\"" + staticClass + "\": " +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div class="{{ val }}">, use <div :class="val">.'
+        );
+      }
+    }
+    if (staticClass) {
+      el.staticClass = JSON.stringify(staticClass);
+    }
+    var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+    if (classBinding) {
+      el.classBinding = classBinding;
+    }
+  }
+
+  function genData (el) {
+    var data = '';
+    if (el.staticClass) {
+      data += "staticClass:" + (el.staticClass) + ",";
+    }
+    if (el.classBinding) {
+      data += "class:" + (el.classBinding) + ",";
+    }
+    return data
+  }
+
+  var klass = {
+    staticKeys: ['staticClass'],
+    transformNode: transformNode,
+    genData: genData
+  };
+
+  /*  */
+
+  function transformNode$1 (el, options) {
+    var warn = options.warn || baseWarn;
+    var staticStyle = getAndRemoveAttr(el, 'style');
+    if (staticStyle) {
+      /* istanbul ignore if */
+      {
+        var res = parseText(staticStyle, options.delimiters);
+        if (res) {
+          warn(
+            "style=\"" + staticStyle + "\": " +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div style="{{ val }}">, use <div :style="val">.'
+          );
+        }
+      }
+      el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+    }
+
+    var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+    if (styleBinding) {
+      el.styleBinding = styleBinding;
+    }
+  }
+
+  function genData$1 (el) {
+    var data = '';
+    if (el.staticStyle) {
+      data += "staticStyle:" + (el.staticStyle) + ",";
+    }
+    if (el.styleBinding) {
+      data += "style:(" + (el.styleBinding) + "),";
+    }
+    return data
   }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+
+  var style = {
+    staticKeys: ['staticStyle'],
+    transformNode: transformNode$1,
+    genData: genData$1
+  };
+
+  var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+  function createCommonjsModule(fn, module) {
+  	return module = { exports: {} }, fn(module, module.exports), module.exports;
+  }
+
+  var he = createCommonjsModule(function (module, exports) {
+  (function(root) {
+
+  	// Detect free variables `exports`.
+  	var freeExports = exports;
+
+  	// Detect free variable `module`.
+  	var freeModule = module &&
+  		module.exports == freeExports && module;
+
+  	// Detect free variable `global`, from Node.js or Browserified code,
+  	// and use it as `root`.
+  	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
+  	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+  		root = freeGlobal;
+  	}
+
+  	/*--------------------------------------------------------------------------*/
+
+  	// All astral symbols.
+  	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+  	// All ASCII symbols (not just printable ASCII) except those listed in the
+  	// first column of the overrides table.
+  	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
+  	var regexAsciiWhitelist = /[\x01-\x7F]/g;
+  	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
+  	// code points listed in the first column of the overrides table on
+  	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
+  	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
+
+  	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
+  	var encodeMap = {'\xAD':'shy','\u200C':'zwnj','\u200D':'zwj','\u200E':'lrm','\u2063':'ic','\u2062':'it','\u2061':'af','\u200F':'rlm','\u200B':'ZeroWidthSpace','\u2060':'NoBreak','\u0311':'DownBreve','\u20DB':'tdot','\u20DC':'DotDot','\t':'Tab','\n':'NewLine','\u2008':'puncsp','\u205F':'MediumSpace','\u2009':'thinsp','\u200A':'hairsp','\u2004':'emsp13','\u2002':'ensp','\u2005':'emsp14','\u2003':'emsp','\u2007':'numsp','\xA0':'nbsp','\u205F\u200A':'ThickSpace','\u203E':'oline','_':'lowbar','\u2010':'dash','\u2013':'ndash','\u2014':'mdash','\u2015':'horbar',',':'comma',';':'semi','\u204F':'bsemi',':':'colon','\u2A74':'Colone','!':'excl','\xA1':'iexcl','?':'quest','\xBF':'iquest','.':'period','\u2025':'nldr','\u2026':'mldr','\xB7':'middot','\'':'apos','\u2018':'lsquo','\u2019':'rsquo','\u201A':'sbquo','\u2039':'lsaquo','\u203A':'rsaquo','"':'quot','\u201C':'ldquo','\u201D':'rdquo','\u201E':'bdquo','\xAB':'laquo','\xBB':'raquo','(':'lpar',')':'rpar','[':'lsqb',']':'rsqb','{':'lcub','}':'rcub','\u2308':'lceil','\u2309':'rceil','\u230A':'lfloor','\u230B':'rfloor','\u2985':'lopar','\u2986':'ropar','\u298B':'lbrke','\u298C':'rbrke','\u298D':'lbrkslu','\u298E':'rbrksld','\u298F':'lbrksld','\u2990':'rbrkslu','\u2991':'langd','\u2992':'rangd','\u2993':'lparlt','\u2994':'rpargt','\u2995':'gtlPar','\u2996':'ltrPar','\u27E6':'lobrk','\u27E7':'robrk','\u27E8':'lang','\u27E9':'rang','\u27EA':'Lang','\u27EB':'Rang','\u27EC':'loang','\u27ED':'roang','\u2772':'lbbrk','\u2773':'rbbrk','\u2016':'Vert','\xA7':'sect','\xB6':'para','@':'commat','*':'ast','/':'sol','undefined':null,'&':'amp','#':'num','%':'percnt','\u2030':'permil','\u2031':'pertenk','\u2020':'dagger','\u2021':'Dagger','\u2022':'bull','\u2043':'hybull','\u2032':'prime','\u2033':'Prime','\u2034':'tprime','\u2057':'qprime','\u2035':'bprime','\u2041':'caret','`':'grave','\xB4':'acute','\u02DC':'tilde','^':'Hat','\xAF':'macr','\u02D8':'breve','\u02D9':'dot','\xA8':'die','\u02DA':'ring','\u02DD':'dblac','\xB8':'cedil','\u02DB':'ogon','\u02C6':'circ','\u02C7':'caron','\xB0':'deg','\xA9':'copy','\xAE':'reg','\u2117':'copysr','\u2118':'wp','\u211E':'rx','\u2127':'mho','\u2129':'iiota','\u2190':'larr','\u219A':'nlarr','\u2192':'rarr','\u219B':'nrarr','\u2191':'uarr','\u2193':'darr','\u2194':'harr','\u21AE':'nharr','\u2195':'varr','\u2196':'nwarr','\u2197':'nearr','\u2198':'searr','\u2199':'swarr','\u219D':'rarrw','\u219D\u0338':'nrarrw','\u219E':'Larr','\u219F':'Uarr','\u21A0':'Rarr','\u21A1':'Darr','\u21A2':'larrtl','\u21A3':'rarrtl','\u21A4':'mapstoleft','\u21A5':'mapstoup','\u21A6':'map','\u21A7':'mapstodown','\u21A9':'larrhk','\u21AA':'rarrhk','\u21AB':'larrlp','\u21AC':'rarrlp','\u21AD':'harrw','\u21B0':'lsh','\u21B1':'rsh','\u21B2':'ldsh','\u21B3':'rdsh','\u21B5':'crarr','\u21B6':'cularr','\u21B7':'curarr','\u21BA':'olarr','\u21BB':'orarr','\u21BC':'lharu','\u21BD':'lhard','\u21BE':'uharr','\u21BF':'uharl','\u21C0':'rharu','\u21C1':'rhard','\u21C2':'dharr','\u21C3':'dharl','\u21C4':'rlarr','\u21C5':'udarr','\u21C6':'lrarr','\u21C7':'llarr','\u21C8':'uuarr','\u21C9':'rrarr','\u21CA':'ddarr','\u21CB':'lrhar','\u21CC':'rlhar','\u21D0':'lArr','\u21CD':'nlArr','\u21D1':'uArr','\u21D2':'rArr','\u21CF':'nrArr','\u21D3':'dArr','\u21D4':'iff','\u21CE':'nhArr','\u21D5':'vArr','\u21D6':'nwArr','\u21D7':'neArr','\u21D8':'seArr','\u21D9':'swArr','\u21DA':'lAarr','\u21DB':'rAarr','\u21DD':'zigrarr','\u21E4':'larrb','\u21E5':'rarrb','\u21F5':'duarr','\u21FD':'loarr','\u21FE':'roarr','\u21FF':'hoarr','\u2200':'forall','\u2201':'comp','\u2202':'part','\u2202\u0338':'npart','\u2203':'exist','\u2204':'nexist','\u2205':'empty','\u2207':'Del','\u2208':'in','\u2209':'notin','\u220B':'ni','\u220C':'notni','\u03F6':'bepsi','\u220F':'prod','\u2210':'coprod','\u2211':'sum','+':'plus','\xB1':'pm','\xF7':'div','\xD7':'times','<':'lt','\u226E':'nlt','<\u20D2':'nvlt','=':'equals','\u2260':'ne','=\u20E5':'bne','\u2A75':'Equal','>':'gt','\u226F':'ngt','>\u20D2':'nvgt','\xAC':'not','|':'vert','\xA6':'brvbar','\u2212':'minus','\u2213':'mp','\u2214':'plusdo','\u2044':'frasl','\u2216':'setmn','\u2217':'lowast','\u2218':'compfn','\u221A':'Sqrt','\u221D':'prop','\u221E':'infin','\u221F':'angrt','\u2220':'ang','\u2220\u20D2':'nang','\u2221':'angmsd','\u2222':'angsph','\u2223':'mid','\u2224':'nmid','\u2225':'par','\u2226':'npar','\u2227':'and','\u2228':'or','\u2229':'cap','\u2229\uFE00':'caps','\u222A':'cup','\u222A\uFE00':'cups','\u222B':'int','\u222C':'Int','\u222D':'tint','\u2A0C':'qint','\u222E':'oint','\u222F':'Conint','\u2230':'Cconint','\u2231':'cwint','\u2232':'cwconint','\u2233':'awconint','\u2234':'there4','\u2235':'becaus','\u2236':'ratio','\u2237':'Colon','\u2238':'minusd','\u223A':'mDDot','\u223B':'homtht','\u223C':'sim','\u2241':'nsim','\u223C\u20D2':'nvsim','\u223D':'bsim','\u223D\u0331':'race','\u223E':'ac','\u223E\u0333':'acE','\u223F':'acd','\u2240':'wr','\u2242':'esim','\u2242\u0338':'nesim','\u2243':'sime','\u2244':'nsime','\u2245':'cong','\u2247':'ncong','\u2246':'simne','\u2248':'ap','\u2249':'nap','\u224A':'ape','\u224B':'apid','\u224B\u0338':'napid','\u224C':'bcong','\u224D':'CupCap','\u226D':'NotCupCap','\u224D\u20D2':'nvap','\u224E':'bump','\u224E\u0338':'nbump','\u224F':'bumpe','\u224F\u0338':'nbumpe','\u2250':'doteq','\u2250\u0338':'nedot','\u2251':'eDot','\u2252':'efDot','\u2253':'erDot','\u2254':'colone','\u2255':'ecolon','\u2256':'ecir','\u2257':'cire','\u2259':'wedgeq','\u225A':'veeeq','\u225C':'trie','\u225F':'equest','\u2261':'equiv','\u2262':'nequiv','\u2261\u20E5':'bnequiv','\u2264':'le','\u2270':'nle','\u2264\u20D2':'nvle','\u2265':'ge','\u2271':'nge','\u2265\u20D2':'nvge','\u2266':'lE','\u2266\u0338':'nlE','\u2267':'gE','\u2267\u0338':'ngE','\u2268\uFE00':'lvnE','\u2268':'lnE','\u2269':'gnE','\u2269\uFE00':'gvnE','\u226A':'ll','\u226A\u0338':'nLtv','\u226A\u20D2':'nLt','\u226B':'gg','\u226B\u0338':'nGtv','\u226B\u20D2':'nGt','\u226C':'twixt','\u2272':'lsim','\u2274':'nlsim','\u2273':'gsim','\u2275':'ngsim','\u2276':'lg','\u2278':'ntlg','\u2277':'gl','\u2279':'ntgl','\u227A':'pr','\u2280':'npr','\u227B':'sc','\u2281':'nsc','\u227C':'prcue','\u22E0':'nprcue','\u227D':'sccue','\u22E1':'nsccue','\u227E':'prsim','\u227F':'scsim','\u227F\u0338':'NotSucceedsTilde','\u2282':'sub','\u2284':'nsub','\u2282\u20D2':'vnsub','\u2283':'sup','\u2285':'nsup','\u2283\u20D2':'vnsup','\u2286':'sube','\u2288':'nsube','\u2287':'supe','\u2289':'nsupe','\u228A\uFE00':'vsubne','\u228A':'subne','\u228B\uFE00':'vsupne','\u228B':'supne','\u228D':'cupdot','\u228E':'uplus','\u228F':'sqsub','\u228F\u0338':'NotSquareSubset','\u2290':'sqsup','\u2290\u0338':'NotSquareSuperset','\u2291':'sqsube','\u22E2':'nsqsube','\u2292':'sqsupe','\u22E3':'nsqsupe','\u2293':'sqcap','\u2293\uFE00':'sqcaps','\u2294':'sqcup','\u2294\uFE00':'sqcups','\u2295':'oplus','\u2296':'ominus','\u2297':'otimes','\u2298':'osol','\u2299':'odot','\u229A':'ocir','\u229B':'oast','\u229D':'odash','\u229E':'plusb','\u229F':'minusb','\u22A0':'timesb','\u22A1':'sdotb','\u22A2':'vdash','\u22AC':'nvdash','\u22A3':'dashv','\u22A4':'top','\u22A5':'bot','\u22A7':'models','\u22A8':'vDash','\u22AD':'nvDash','\u22A9':'Vdash','\u22AE':'nVdash','\u22AA':'Vvdash','\u22AB':'VDash','\u22AF':'nVDash','\u22B0':'prurel','\u22B2':'vltri','\u22EA':'nltri','\u22B3':'vrtri','\u22EB':'nrtri','\u22B4':'ltrie','\u22EC':'nltrie','\u22B4\u20D2':'nvltrie','\u22B5':'rtrie','\u22ED':'nrtrie','\u22B5\u20D2':'nvrtrie','\u22B6':'origof','\u22B7':'imof','\u22B8':'mumap','\u22B9':'hercon','\u22BA':'intcal','\u22BB':'veebar','\u22BD':'barvee','\u22BE':'angrtvb','\u22BF':'lrtri','\u22C0':'Wedge','\u22C1':'Vee','\u22C2':'xcap','\u22C3':'xcup','\u22C4':'diam','\u22C5':'sdot','\u22C6':'Star','\u22C7':'divonx','\u22C8':'bowtie','\u22C9':'ltimes','\u22CA':'rtimes','\u22CB':'lthree','\u22CC':'rthree','\u22CD':'bsime','\u22CE':'cuvee','\u22CF':'cuwed','\u22D0':'Sub','\u22D1':'Sup','\u22D2':'Cap','\u22D3':'Cup','\u22D4':'fork','\u22D5':'epar','\u22D6':'ltdot','\u22D7':'gtdot','\u22D8':'Ll','\u22D8\u0338':'nLl','\u22D9':'Gg','\u22D9\u0338':'nGg','\u22DA\uFE00':'lesg','\u22DA':'leg','\u22DB':'gel','\u22DB\uFE00':'gesl','\u22DE':'cuepr','\u22DF':'cuesc','\u22E6':'lnsim','\u22E7':'gnsim','\u22E8':'prnsim','\u22E9':'scnsim','\u22EE':'vellip','\u22EF':'ctdot','\u22F0':'utdot','\u22F1':'dtdot','\u22F2':'disin','\u22F3':'isinsv','\u22F4':'isins','\u22F5':'isindot','\u22F5\u0338':'notindot','\u22F6':'notinvc','\u22F7':'notinvb','\u22F9':'isinE','\u22F9\u0338':'notinE','\u22FA':'nisd','\u22FB':'xnis','\u22FC':'nis','\u22FD':'notnivc','\u22FE':'notnivb','\u2305':'barwed','\u2306':'Barwed','\u230C':'drcrop','\u230D':'dlcrop','\u230E':'urcrop','\u230F':'ulcrop','\u2310':'bnot','\u2312':'profline','\u2313':'profsurf','\u2315':'telrec','\u2316':'target','\u231C':'ulcorn','\u231D':'urcorn','\u231E':'dlcorn','\u231F':'drcorn','\u2322':'frown','\u2323':'smile','\u232D':'cylcty','\u232E':'profalar','\u2336':'topbot','\u233D':'ovbar','\u233F':'solbar','\u237C':'angzarr','\u23B0':'lmoust','\u23B1':'rmoust','\u23B4':'tbrk','\u23B5':'bbrk','\u23B6':'bbrktbrk','\u23DC':'OverParenthesis','\u23DD':'UnderParenthesis','\u23DE':'OverBrace','\u23DF':'UnderBrace','\u23E2':'trpezium','\u23E7':'elinters','\u2423':'blank','\u2500':'boxh','\u2502':'boxv','\u250C':'boxdr','\u2510':'boxdl','\u2514':'boxur','\u2518':'boxul','\u251C':'boxvr','\u2524':'boxvl','\u252C':'boxhd','\u2534':'boxhu','\u253C':'boxvh','\u2550':'boxH','\u2551':'boxV','\u2552':'boxdR','\u2553':'boxDr','\u2554':'boxDR','\u2555':'boxdL','\u2556':'boxDl','\u2557':'boxDL','\u2558':'boxuR','\u2559':'boxUr','\u255A':'boxUR','\u255B':'boxuL','\u255C':'boxUl','\u255D':'boxUL','\u255E':'boxvR','\u255F':'boxVr','\u2560':'boxVR','\u2561':'boxvL','\u2562':'boxVl','\u2563':'boxVL','\u2564':'boxHd','\u2565':'boxhD','\u2566':'boxHD','\u2567':'boxHu','\u2568':'boxhU','\u2569':'boxHU','\u256A':'boxvH','\u256B':'boxVh','\u256C':'boxVH','\u2580':'uhblk','\u2584':'lhblk','\u2588':'block','\u2591':'blk14','\u2592':'blk12','\u2593':'blk34','\u25A1':'squ','\u25AA':'squf','\u25AB':'EmptyVerySmallSquare','\u25AD':'rect','\u25AE':'marker','\u25B1':'fltns','\u25B3':'xutri','\u25B4':'utrif','\u25B5':'utri','\u25B8':'rtrif','\u25B9':'rtri','\u25BD':'xdtri','\u25BE':'dtrif','\u25BF':'dtri','\u25C2':'ltrif','\u25C3':'ltri','\u25CA':'loz','\u25CB':'cir','\u25EC':'tridot','\u25EF':'xcirc','\u25F8':'ultri','\u25F9':'urtri','\u25FA':'lltri','\u25FB':'EmptySmallSquare','\u25FC':'FilledSmallSquare','\u2605':'starf','\u2606':'star','\u260E':'phone','\u2640':'female','\u2642':'male','\u2660':'spades','\u2663':'clubs','\u2665':'hearts','\u2666':'diams','\u266A':'sung','\u2713':'check','\u2717':'cross','\u2720':'malt','\u2736':'sext','\u2758':'VerticalSeparator','\u27C8':'bsolhsub','\u27C9':'suphsol','\u27F5':'xlarr','\u27F6':'xrarr','\u27F7':'xharr','\u27F8':'xlArr','\u27F9':'xrArr','\u27FA':'xhArr','\u27FC':'xmap','\u27FF':'dzigrarr','\u2902':'nvlArr','\u2903':'nvrArr','\u2904':'nvHarr','\u2905':'Map','\u290C':'lbarr','\u290D':'rbarr','\u290E':'lBarr','\u290F':'rBarr','\u2910':'RBarr','\u2911':'DDotrahd','\u2912':'UpArrowBar','\u2913':'DownArrowBar','\u2916':'Rarrtl','\u2919':'latail','\u291A':'ratail','\u291B':'lAtail','\u291C':'rAtail','\u291D':'larrfs','\u291E':'rarrfs','\u291F':'larrbfs','\u2920':'rarrbfs','\u2923':'nwarhk','\u2924':'nearhk','\u2925':'searhk','\u2926':'swarhk','\u2927':'nwnear','\u2928':'toea','\u2929':'tosa','\u292A':'swnwar','\u2933':'rarrc','\u2933\u0338':'nrarrc','\u2935':'cudarrr','\u2936':'ldca','\u2937':'rdca','\u2938':'cudarrl','\u2939':'larrpl','\u293C':'curarrm','\u293D':'cularrp','\u2945':'rarrpl','\u2948':'harrcir','\u2949':'Uarrocir','\u294A':'lurdshar','\u294B':'ldrushar','\u294E':'LeftRightVector','\u294F':'RightUpDownVector','\u2950':'DownLeftRightVector','\u2951':'LeftUpDownVector','\u2952':'LeftVectorBar','\u2953':'RightVectorBar','\u2954':'RightUpVectorBar','\u2955':'RightDownVectorBar','\u2956':'DownLeftVectorBar','\u2957':'DownRightVectorBar','\u2958':'LeftUpVectorBar','\u2959':'LeftDownVectorBar','\u295A':'LeftTeeVector','\u295B':'RightTeeVector','\u295C':'RightUpTeeVector','\u295D':'RightDownTeeVector','\u295E':'DownLeftTeeVector','\u295F':'DownRightTeeVector','\u2960':'LeftUpTeeVector','\u2961':'LeftDownTeeVector','\u2962':'lHar','\u2963':'uHar','\u2964':'rHar','\u2965':'dHar','\u2966':'luruhar','\u2967':'ldrdhar','\u2968':'ruluhar','\u2969':'rdldhar','\u296A':'lharul','\u296B':'llhard','\u296C':'rharul','\u296D':'lrhard','\u296E':'udhar','\u296F':'duhar','\u2970':'RoundImplies','\u2971':'erarr','\u2972':'simrarr','\u2973':'larrsim','\u2974':'rarrsim','\u2975':'rarrap','\u2976':'ltlarr','\u2978':'gtrarr','\u2979':'subrarr','\u297B':'suplarr','\u297C':'lfisht','\u297D':'rfisht','\u297E':'ufisht','\u297F':'dfisht','\u299A':'vzigzag','\u299C':'vangrt','\u299D':'angrtvbd','\u29A4':'ange','\u29A5':'range','\u29A6':'dwangle','\u29A7':'uwangle','\u29A8':'angmsdaa','\u29A9':'angmsdab','\u29AA':'angmsdac','\u29AB':'angmsdad','\u29AC':'angmsdae','\u29AD':'angmsdaf','\u29AE':'angmsdag','\u29AF':'angmsdah','\u29B0':'bemptyv','\u29B1':'demptyv','\u29B2':'cemptyv','\u29B3':'raemptyv','\u29B4':'laemptyv','\u29B5':'ohbar','\u29B6':'omid','\u29B7':'opar','\u29B9':'operp','\u29BB':'olcross','\u29BC':'odsold','\u29BE':'olcir','\u29BF':'ofcir','\u29C0':'olt','\u29C1':'ogt','\u29C2':'cirscir','\u29C3':'cirE','\u29C4':'solb','\u29C5':'bsolb','\u29C9':'boxbox','\u29CD':'trisb','\u29CE':'rtriltri','\u29CF':'LeftTriangleBar','\u29CF\u0338':'NotLeftTriangleBar','\u29D0':'RightTriangleBar','\u29D0\u0338':'NotRightTriangleBar','\u29DC':'iinfin','\u29DD':'infintie','\u29DE':'nvinfin','\u29E3':'eparsl','\u29E4':'smeparsl','\u29E5':'eqvparsl','\u29EB':'lozf','\u29F4':'RuleDelayed','\u29F6':'dsol','\u2A00':'xodot','\u2A01':'xoplus','\u2A02':'xotime','\u2A04':'xuplus','\u2A06':'xsqcup','\u2A0D':'fpartint','\u2A10':'cirfnint','\u2A11':'awint','\u2A12':'rppolint','\u2A13':'scpolint','\u2A14':'npolint','\u2A15':'pointint','\u2A16':'quatint','\u2A17':'intlarhk','\u2A22':'pluscir','\u2A23':'plusacir','\u2A24':'simplus','\u2A25':'plusdu','\u2A26':'plussim','\u2A27':'plustwo','\u2A29':'mcomma','\u2A2A':'minusdu','\u2A2D':'loplus','\u2A2E':'roplus','\u2A2F':'Cross','\u2A30':'timesd','\u2A31':'timesbar','\u2A33':'smashp','\u2A34':'lotimes','\u2A35':'rotimes','\u2A36':'otimesas','\u2A37':'Otimes','\u2A38':'odiv','\u2A39':'triplus','\u2A3A':'triminus','\u2A3B':'tritime','\u2A3C':'iprod','\u2A3F':'amalg','\u2A40':'capdot','\u2A42':'ncup','\u2A43':'ncap','\u2A44':'capand','\u2A45':'cupor','\u2A46':'cupcap','\u2A47':'capcup','\u2A48':'cupbrcap','\u2A49':'capbrcup','\u2A4A':'cupcup','\u2A4B':'capcap','\u2A4C':'ccups','\u2A4D':'ccaps','\u2A50':'ccupssm','\u2A53':'And','\u2A54':'Or','\u2A55':'andand','\u2A56':'oror','\u2A57':'orslope','\u2A58':'andslope','\u2A5A':'andv','\u2A5B':'orv','\u2A5C':'andd','\u2A5D':'ord','\u2A5F':'wedbar','\u2A66':'sdote','\u2A6A':'simdot','\u2A6D':'congdot','\u2A6D\u0338':'ncongdot','\u2A6E':'easter','\u2A6F':'apacir','\u2A70':'apE','\u2A70\u0338':'napE','\u2A71':'eplus','\u2A72':'pluse','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
+
+  	var regexEscape = /["&'<>`]/g;
+  	var escapeMap = {
+  		'"': '&quot;',
+  		'&': '&amp;',
+  		'\'': '&#x27;',
+  		'<': '&lt;',
+  		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
+  		// following is not strictly necessary unless it’s part of a tag or an
+  		// unquoted attribute value. We’re only escaping it to support those
+  		// situations, and for XML support.
+  		'>': '&gt;',
+  		// In Internet Explorer ≤ 8, the backtick character can be used
+  		// to break out of (un)quoted attribute values or HTML comments.
+  		// See http://html5sec.org/#102, http://html5sec.org/#108, and
+  		// http://html5sec.org/#133.
+  		'`': '&#x60;'
+  	};
+
+  	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
+  	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+  	var regexDecode = /&(CounterClockwiseContourIntegral|DoubleLongLeftRightArrow|ClockwiseContourIntegral|NotNestedGreaterGreater|NotSquareSupersetEqual|DiacriticalDoubleAcute|NotRightTriangleEqual|NotSucceedsSlantEqual|NotPrecedesSlantEqual|CloseCurlyDoubleQuote|NegativeVeryThinSpace|DoubleContourIntegral|FilledVerySmallSquare|CapitalDifferentialD|OpenCurlyDoubleQuote|EmptyVerySmallSquare|NestedGreaterGreater|DoubleLongRightArrow|NotLeftTriangleEqual|NotGreaterSlantEqual|ReverseUpEquilibrium|DoubleLeftRightArrow|NotSquareSubsetEqual|NotDoubleVerticalBar|RightArrowLeftArrow|NotGreaterFullEqual|NotRightTriangleBar|SquareSupersetEqual|DownLeftRightVector|DoubleLongLeftArrow|leftrightsquigarrow|LeftArrowRightArrow|NegativeMediumSpace|blacktriangleright|RightDownVectorBar|PrecedesSlantEqual|RightDoubleBracket|SucceedsSlantEqual|NotLeftTriangleBar|RightTriangleEqual|SquareIntersection|RightDownTeeVector|ReverseEquilibrium|NegativeThickSpace|longleftrightarrow|Longleftrightarrow|LongLeftRightArrow|DownRightTeeVector|DownRightVectorBar|GreaterSlantEqual|SquareSubsetEqual|LeftDownVectorBar|LeftDoubleBracket|VerticalSeparator|rightleftharpoons|NotGreaterGreater|NotSquareSuperset|blacktriangleleft|blacktriangledown|NegativeThinSpace|LeftDownTeeVector|NotLessSlantEqual|leftrightharpoons|DoubleUpDownArrow|DoubleVerticalBar|LeftTriangleEqual|FilledSmallSquare|twoheadrightarrow|NotNestedLessLess|DownLeftTeeVector|DownLeftVectorBar|RightAngleBracket|NotTildeFullEqual|NotReverseElement|RightUpDownVector|DiacriticalTilde|NotSucceedsTilde|circlearrowright|NotPrecedesEqual|rightharpoondown|DoubleRightArrow|NotSucceedsEqual|NonBreakingSpace|NotRightTriangle|LessEqualGreater|RightUpTeeVector|LeftAngleBracket|GreaterFullEqual|DownArrowUpArrow|RightUpVectorBar|twoheadleftarrow|GreaterEqualLess|downharpoonright|RightTriangleBar|ntrianglerighteq|NotSupersetEqual|LeftUpDownVector|DiacriticalAcute|rightrightarrows|vartriangleright|UpArrowDownArrow|DiacriticalGrave|UnderParenthesis|EmptySmallSquare|LeftUpVectorBar|leftrightarrows|DownRightVector|downharpoonleft|trianglerighteq|ShortRightArrow|OverParenthesis|DoubleLeftArrow|DoubleDownArrow|NotSquareSubset|bigtriangledown|ntrianglelefteq|UpperRightArrow|curvearrowright|vartriangleleft|NotLeftTriangle|nleftrightarrow|LowerRightArrow|NotHumpDownHump|NotGreaterTilde|rightthreetimes|LeftUpTeeVector|NotGreaterEqual|straightepsilon|LeftTriangleBar|rightsquigarrow|ContourIntegral|rightleftarrows|CloseCurlyQuote|RightDownVector|LeftRightVector|nLeftrightarrow|leftharpoondown|circlearrowleft|SquareSuperset|OpenCurlyQuote|hookrightarrow|HorizontalLine|DiacriticalDot|NotLessGreater|ntriangleright|DoubleRightTee|InvisibleComma|InvisibleTimes|LowerLeftArrow|DownLeftVector|NotSubsetEqual|curvearrowleft|trianglelefteq|NotVerticalBar|TildeFullEqual|downdownarrows|NotGreaterLess|RightTeeVector|ZeroWidthSpace|looparrowright|LongRightArrow|doublebarwedge|ShortLeftArrow|ShortDownArrow|RightVectorBar|GreaterGreater|ReverseElement|rightharpoonup|LessSlantEqual|leftthreetimes|upharpoonright|rightarrowtail|LeftDownVector|Longrightarrow|NestedLessLess|UpperLeftArrow|nshortparallel|leftleftarrows|leftrightarrow|Leftrightarrow|LeftRightArrow|longrightarrow|upharpoonleft|RightArrowBar|ApplyFunction|LeftTeeVector|leftarrowtail|NotEqualTilde|varsubsetneqq|varsupsetneqq|RightTeeArrow|SucceedsEqual|SucceedsTilde|LeftVectorBar|SupersetEqual|hookleftarrow|DifferentialD|VerticalTilde|VeryThinSpace|blacktriangle|bigtriangleup|LessFullEqual|divideontimes|leftharpoonup|UpEquilibrium|ntriangleleft|RightTriangle|measuredangle|shortparallel|longleftarrow|Longleftarrow|LongLeftArrow|DoubleLeftTee|Poincareplane|PrecedesEqual|triangleright|DoubleUpArrow|RightUpVector|fallingdotseq|looparrowleft|PrecedesTilde|NotTildeEqual|NotTildeTilde|smallsetminus|Proportional|triangleleft|triangledown|UnderBracket|NotHumpEqual|exponentiale|ExponentialE|NotLessTilde|HilbertSpace|RightCeiling|blacklozenge|varsupsetneq|HumpDownHump|GreaterEqual|VerticalLine|LeftTeeArrow|NotLessEqual|DownTeeArrow|LeftTriangle|varsubsetneq|Intersection|NotCongruent|DownArrowBar|LeftUpVector|LeftArrowBar|risingdotseq|GreaterTilde|RoundImplies|SquareSubset|ShortUpArrow|NotSuperset|quaternions|precnapprox|backepsilon|preccurlyeq|OverBracket|blacksquare|MediumSpace|VerticalBar|circledcirc|circleddash|CircleMinus|CircleTimes|LessGreater|curlyeqprec|curlyeqsucc|diamondsuit|UpDownArrow|Updownarrow|RuleDelayed|Rrightarrow|updownarrow|RightVector|nRightarrow|nrightarrow|eqslantless|LeftCeiling|Equilibrium|SmallCircle|expectation|NotSucceeds|thickapprox|GreaterLess|SquareUnion|NotPrecedes|NotLessLess|straightphi|succnapprox|succcurlyeq|SubsetEqual|sqsupseteq|Proportion|Laplacetrf|ImaginaryI|supsetneqq|NotGreater|gtreqqless|NotElement|ThickSpace|TildeEqual|TildeTilde|Fouriertrf|rmoustache|EqualTilde|eqslantgtr|UnderBrace|LeftVector|UpArrowBar|nLeftarrow|nsubseteqq|subsetneqq|nsupseteqq|nleftarrow|succapprox|lessapprox|UpTeeArrow|upuparrows|curlywedge|lesseqqgtr|varepsilon|varnothing|RightFloor|c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|Fscr|gdot|gsim|Gscr|gscr|Gopf|gopf|gneq|Gdot|tosa|gnap|Topf|topf|geqq|toea|GJcy|gjcy|tint|gesl|mid|Sfr|ggg|top|ges|gla|glE|glj|geq|gne|gEl|gel|gnE|Gcy|gcy|gap|Tfr|tfr|Tcy|tcy|Hat|Tau|Ffr|tau|Tab|hfr|Hfr|ffr|Fcy|fcy|icy|Icy|iff|ETH|eth|ifr|Ifr|Eta|eta|int|Int|Sup|sup|ucy|Ucy|Sum|sum|jcy|ENG|ufr|Ufr|eng|Jcy|jfr|els|ell|egs|Efr|efr|Jfr|uml|kcy|Kcy|Ecy|ecy|kfr|Kfr|lap|Sub|sub|lat|lcy|Lcy|leg|Dot|dot|lEg|leq|les|squ|div|die|lfr|Lfr|lgE|Dfr|dfr|Del|deg|Dcy|dcy|lne|lnE|sol|loz|smt|Cup|lrm|cup|lsh|Lsh|sim|shy|map|Map|mcy|Mcy|mfr|Mfr|mho|gfr|Gfr|sfr|cir|Chi|chi|nap|Cfr|vcy|Vcy|cfr|Scy|scy|ncy|Ncy|vee|Vee|Cap|cap|nfr|scE|sce|Nfr|nge|ngE|nGg|vfr|Vfr|ngt|bot|nGt|nis|niv|Rsh|rsh|nle|nlE|bne|Bfr|bfr|nLl|nlt|nLt|Bcy|bcy|not|Not|rlm|wfr|Wfr|npr|nsc|num|ocy|ast|Ocy|ofr|xfr|Xfr|Ofr|ogt|ohm|apE|olt|Rho|ape|rho|Rfr|rfr|ord|REG|ang|reg|orv|And|and|AMP|Rcy|amp|Afr|ycy|Ycy|yen|yfr|Yfr|rcy|par|pcy|Pcy|pfr|Pfr|phi|Phi|afr|Acy|acy|zcy|Zcy|piv|acE|acd|zfr|Zfr|pre|prE|psi|Psi|qfr|Qfr|zwj|Or|ge|Gg|gt|gg|el|oS|lt|Lt|LT|Re|lg|gl|eg|ne|Im|it|le|DD|wp|wr|nu|Nu|dd|lE|Sc|sc|pi|Pi|ee|af|ll|Ll|rx|gE|xi|pm|Xi|ic|pr|Pr|in|ni|mp|mu|ac|Mu|or|ap|Gt|GT|ii);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)(?!;)([=a-zA-Z0-9]?)|&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+)/g;
+  	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
+  	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
+  	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
+  	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
+
+  	/*--------------------------------------------------------------------------*/
+
+  	var stringFromCharCode = String.fromCharCode;
+
+  	var object = {};
+  	var hasOwnProperty = object.hasOwnProperty;
+  	var has = function(object, propertyName) {
+  		return hasOwnProperty.call(object, propertyName);
+  	};
+
+  	var contains = function(array, value) {
+  		var index = -1;
+  		var length = array.length;
+  		while (++index < length) {
+  			if (array[index] == value) {
+  				return true;
+  			}
+  		}
+  		return false;
+  	};
+
+  	var merge = function(options, defaults) {
+  		if (!options) {
+  			return defaults;
+  		}
+  		var result = {};
+  		var key;
+  		for (key in defaults) {
+  			// A `hasOwnProperty` check is not needed here, since only recognized
+  			// option names are used anyway. Any others are ignored.
+  			result[key] = has(options, key) ? options[key] : defaults[key];
+  		}
+  		return result;
+  	};
+
+  	// Modified version of `ucs2encode`; see https://mths.be/punycode.
+  	var codePointToSymbol = function(codePoint, strict) {
+  		var output = '';
+  		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
+  			// See issue #4:
+  			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
+  			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
+  			// REPLACEMENT CHARACTER.”
+  			if (strict) {
+  				parseError('character reference outside the permissible Unicode range');
+  			}
+  			return '\uFFFD';
+  		}
+  		if (has(decodeMapNumeric, codePoint)) {
+  			if (strict) {
+  				parseError('disallowed character reference');
+  			}
+  			return decodeMapNumeric[codePoint];
+  		}
+  		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
+  			parseError('disallowed character reference');
+  		}
+  		if (codePoint > 0xFFFF) {
+  			codePoint -= 0x10000;
+  			output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
+  			codePoint = 0xDC00 | codePoint & 0x3FF;
+  		}
+  		output += stringFromCharCode(codePoint);
+  		return output;
+  	};
+
+  	var hexEscape = function(codePoint) {
+  		return '&#x' + codePoint.toString(16).toUpperCase() + ';';
+  	};
+
+  	var decEscape = function(codePoint) {
+  		return '&#' + codePoint + ';';
+  	};
+
+  	var parseError = function(message) {
+  		throw Error('Parse error: ' + message);
+  	};
+
+  	/*--------------------------------------------------------------------------*/
+
+  	var encode = function(string, options) {
+  		options = merge(options, encode.options);
+  		var strict = options.strict;
+  		if (strict && regexInvalidRawCodePoint.test(string)) {
+  			parseError('forbidden code point');
+  		}
+  		var encodeEverything = options.encodeEverything;
+  		var useNamedReferences = options.useNamedReferences;
+  		var allowUnsafeSymbols = options.allowUnsafeSymbols;
+  		var escapeCodePoint = options.decimal ? decEscape : hexEscape;
+
+  		var escapeBmpSymbol = function(symbol) {
+  			return escapeCodePoint(symbol.charCodeAt(0));
+  		};
+
+  		if (encodeEverything) {
+  			// Encode ASCII symbols.
+  			string = string.replace(regexAsciiWhitelist, function(symbol) {
+  				// Use named references if requested & possible.
+  				if (useNamedReferences && has(encodeMap, symbol)) {
+  					return '&' + encodeMap[symbol] + ';';
+  				}
+  				return escapeBmpSymbol(symbol);
+  			});
+  			// Shorten a few escapes that represent two symbols, of which at least one
+  			// is within the ASCII range.
+  			if (useNamedReferences) {
+  				string = string
+  					.replace(/&gt;\u20D2/g, '&nvgt;')
+  					.replace(/&lt;\u20D2/g, '&nvlt;')
+  					.replace(/&#x66;&#x6A;/g, '&fjlig;');
+  			}
+  			// Encode non-ASCII symbols.
+  			if (useNamedReferences) {
+  				// Encode non-ASCII symbols that can be replaced with a named reference.
+  				string = string.replace(regexEncodeNonAscii, function(string) {
+  					// Note: there is no need to check `has(encodeMap, string)` here.
+  					return '&' + encodeMap[string] + ';';
+  				});
+  			}
+  			// Note: any remaining non-ASCII symbols are handled outside of the `if`.
+  		} else if (useNamedReferences) {
+  			// Apply named character references.
+  			// Encode `<>"'&` using named character references.
+  			if (!allowUnsafeSymbols) {
+  				string = string.replace(regexEscape, function(string) {
+  					return '&' + encodeMap[string] + ';'; // no need to check `has()` here
+  				});
+  			}
+  			// Shorten escapes that represent two symbols, of which at least one is
+  			// `<>"'&`.
+  			string = string
+  				.replace(/&gt;\u20D2/g, '&nvgt;')
+  				.replace(/&lt;\u20D2/g, '&nvlt;');
+  			// Encode non-ASCII symbols that can be replaced with a named reference.
+  			string = string.replace(regexEncodeNonAscii, function(string) {
+  				// Note: there is no need to check `has(encodeMap, string)` here.
+  				return '&' + encodeMap[string] + ';';
+  			});
+  		} else if (!allowUnsafeSymbols) {
+  			// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
+  			// using named character references.
+  			string = string.replace(regexEscape, escapeBmpSymbol);
+  		}
+  		return string
+  			// Encode astral symbols.
+  			.replace(regexAstralSymbols, function($0) {
+  				// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+  				var high = $0.charCodeAt(0);
+  				var low = $0.charCodeAt(1);
+  				var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
+  				return escapeCodePoint(codePoint);
+  			})
+  			// Encode any remaining BMP symbols that are not printable ASCII symbols
+  			// using a hexadecimal escape.
+  			.replace(regexBmpWhitelist, escapeBmpSymbol);
+  	};
+  	// Expose default options (so they can be overridden globally).
+  	encode.options = {
+  		'allowUnsafeSymbols': false,
+  		'encodeEverything': false,
+  		'strict': false,
+  		'useNamedReferences': false,
+  		'decimal' : false
+  	};
+
+  	var decode = function(html, options) {
+  		options = merge(options, decode.options);
+  		var strict = options.strict;
+  		if (strict && regexInvalidEntity.test(html)) {
+  			parseError('malformed character reference');
+  		}
+  		return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7, $8) {
+  			var codePoint;
+  			var semicolon;
+  			var decDigits;
+  			var hexDigits;
+  			var reference;
+  			var next;
+
+  			if ($1) {
+  				reference = $1;
+  				// Note: there is no need to check `has(decodeMap, reference)`.
+  				return decodeMap[reference];
+  			}
+
+  			if ($2) {
+  				// Decode named character references without trailing `;`, e.g. `&amp`.
+  				// This is only a parse error if it gets converted to `&`, or if it is
+  				// followed by `=` in an attribute context.
+  				reference = $2;
+  				next = $3;
+  				if (next && options.isAttributeValue) {
+  					if (strict && next == '=') {
+  						parseError('`&` did not start a character reference');
+  					}
+  					return $0;
+  				} else {
+  					if (strict) {
+  						parseError(
+  							'named character reference was not terminated by a semicolon'
+  						);
+  					}
+  					// Note: there is no need to check `has(decodeMapLegacy, reference)`.
+  					return decodeMapLegacy[reference] + (next || '');
+  				}
+  			}
+
+  			if ($4) {
+  				// Decode decimal escapes, e.g. `&#119558;`.
+  				decDigits = $4;
+  				semicolon = $5;
+  				if (strict && !semicolon) {
+  					parseError('character reference was not terminated by a semicolon');
+  				}
+  				codePoint = parseInt(decDigits, 10);
+  				return codePointToSymbol(codePoint, strict);
+  			}
+
+  			if ($6) {
+  				// Decode hexadecimal escapes, e.g. `&#x1D306;`.
+  				hexDigits = $6;
+  				semicolon = $7;
+  				if (strict && !semicolon) {
+  					parseError('character reference was not terminated by a semicolon');
+  				}
+  				codePoint = parseInt(hexDigits, 16);
+  				return codePointToSymbol(codePoint, strict);
+  			}
+
+  			// If we’re still here, `if ($7)` is implied; it’s an ambiguous
+  			// ampersand for sure. https://mths.be/notes/ambiguous-ampersands
+  			if (strict) {
+  				parseError(
+  					'named character reference was not terminated by a semicolon'
+  				);
+  			}
+  			return $0;
+  		});
+  	};
+  	// Expose default options (so they can be overridden globally).
+  	decode.options = {
+  		'isAttributeValue': false,
+  		'strict': false
+  	};
+
+  	var escape = function(string) {
+  		return string.replace(regexEscape, function($0) {
+  			// Note: there is no need to check `has(escapeMap, $0)` here.
+  			return escapeMap[$0];
+  		});
+  	};
+
+  	/*--------------------------------------------------------------------------*/
+
+  	var he = {
+  		'version': '1.2.0',
+  		'encode': encode,
+  		'decode': decode,
+  		'escape': escape,
+  		'unescape': decode
+  	};
+
+  	// Some AMD build optimizers, like r.js, check for specific condition patterns
+  	// like the following:
+  	if (freeExports && !freeExports.nodeType) {
+  		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
+  			freeModule.exports = he;
+  		} else { // in Narwhal or RingoJS v0.7.0-
+  			for (var key in he) {
+  				has(he, key) && (freeExports[key] = he[key]);
+  			}
+  		}
+  	} else { // in Rhino or a web browser
+  		root.he = he;
+  	}
+
+  }(commonjsGlobal));
+  });
+
+  /**
+   * Not type-checking this file because it's mostly vendor code.
+   */
+
+  // Regular Expressions for parsing tags and attributes
+  var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+  // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+  // but for Vue templates we can enforce a simple charset
+  var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+  var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+  var startTagOpen = new RegExp(("^<" + qnameCapture));
+  var startTagClose = /^\s*(\/?)>/;
+  var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+  var doctype = /^<!DOCTYPE [^>]+>/i;
+  // #7298: escape - to avoid being pased as HTML comment when inlined in page
+  var comment = /^<!\--/;
+  var conditionalComment = /^<!\[/;
+
+  // Special Elements (can contain anything)
+  var isPlainTextElement = makeMap('script,style,textarea', true);
+  var reCache = {};
+
+  var decodingMap = {
+    '&lt;': '<',
+    '&gt;': '>',
+    '&quot;': '"',
+    '&amp;': '&',
+    '&#10;': '\n',
+    '&#9;': '\t'
+  };
+  var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+  // #5992
+  var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+  var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+  function decodeAttr (value, shouldDecodeNewlines) {
+    var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+    return value.replace(re, function (match) { return decodingMap[match]; })
+  }
+
+  function parseHTML (html, options) {
+    var stack = [];
+    var expectHTML = options.expectHTML;
+    var isUnaryTag$$1 = options.isUnaryTag || no;
+    var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+    var index = 0;
+    var last, lastTag;
+    while (html) {
+      last = html;
+      // Make sure we're not in a plaintext content element like script/style
+      if (!lastTag || !isPlainTextElement(lastTag)) {
+        var textEnd = html.indexOf('<');
+        if (textEnd === 0) {
+          // Comment:
+          if (comment.test(html)) {
+            var commentEnd = html.indexOf('-->');
+
+            if (commentEnd >= 0) {
+              if (options.shouldKeepComment) {
+                options.comment(html.substring(4, commentEnd));
+              }
+              advance(commentEnd + 3);
+              continue
+            }
+          }
+
+          // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+          if (conditionalComment.test(html)) {
+            var conditionalEnd = html.indexOf(']>');
+
+            if (conditionalEnd >= 0) {
+              advance(conditionalEnd + 2);
+              continue
+            }
+          }
+
+          // Doctype:
+          var doctypeMatch = html.match(doctype);
+          if (doctypeMatch) {
+            advance(doctypeMatch[0].length);
+            continue
+          }
+
+          // End tag:
+          var endTagMatch = html.match(endTag);
+          if (endTagMatch) {
+            var curIndex = index;
+            advance(endTagMatch[0].length);
+            parseEndTag(endTagMatch[1], curIndex, index);
+            continue
+          }
+
+          // Start tag:
+          var startTagMatch = parseStartTag();
+          if (startTagMatch) {
+            handleStartTag(startTagMatch);
+            if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
+              advance(1);
+            }
+            continue
+          }
+        }
+
+        var text = (void 0), rest = (void 0), next = (void 0);
+        if (textEnd >= 0) {
+          rest = html.slice(textEnd);
+          while (
+            !endTag.test(rest) &&
+            !startTagOpen.test(rest) &&
+            !comment.test(rest) &&
+            !conditionalComment.test(rest)
+          ) {
+            // < in plain text, be forgiving and treat it as text
+            next = rest.indexOf('<', 1);
+            if (next < 0) { break }
+            textEnd += next;
+            rest = html.slice(textEnd);
+          }
+          text = html.substring(0, textEnd);
+          advance(textEnd);
+        }
+
+        if (textEnd < 0) {
+          text = html;
+          html = '';
+        }
+
+        if (options.chars && text) {
+          options.chars(text);
+        }
+      } else {
+        var endTagLength = 0;
+        var stackedTag = lastTag.toLowerCase();
+        var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+        var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+          endTagLength = endTag.length;
+          if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+            text = text
+              .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+              .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+          }
+          if (shouldIgnoreFirstNewline(stackedTag, text)) {
+            text = text.slice(1);
+          }
+          if (options.chars) {
+            options.chars(text);
+          }
+          return ''
+        });
+        index += html.length - rest$1.length;
+        html = rest$1;
+        parseEndTag(stackedTag, index - endTagLength, index);
+      }
+
+      if (html === last) {
+        options.chars && options.chars(html);
+        if (!stack.length && options.warn) {
+          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+        }
+        break
+      }
+    }
+
+    // Clean up any remaining tags
+    parseEndTag();
+
+    function advance (n) {
+      index += n;
+      html = html.substring(n);
+    }
+
+    function parseStartTag () {
+      var start = html.match(startTagOpen);
+      if (start) {
+        var match = {
+          tagName: start[1],
+          attrs: [],
+          start: index
+        };
+        advance(start[0].length);
+        var end, attr;
+        while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+          advance(attr[0].length);
+          match.attrs.push(attr);
+        }
+        if (end) {
+          match.unarySlash = end[1];
+          advance(end[0].length);
+          match.end = index;
+          return match
+        }
+      }
+    }
+
+    function handleStartTag (match) {
+      var tagName = match.tagName;
+      var unarySlash = match.unarySlash;
+
+      if (expectHTML) {
+        if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+          parseEndTag(lastTag);
+        }
+        if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+          parseEndTag(tagName);
+        }
+      }
+
+      var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+      var l = match.attrs.length;
+      var attrs = new Array(l);
+      for (var i = 0; i < l; i++) {
+        var args = match.attrs[i];
+        var value = args[3] || args[4] || args[5] || '';
+        var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+          ? options.shouldDecodeNewlinesForHref
+          : options.shouldDecodeNewlines;
+        attrs[i] = {
+          name: args[1],
+          value: decodeAttr(value, shouldDecodeNewlines)
+        };
+      }
+
+      if (!unary) {
+        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+        lastTag = tagName;
+      }
+
+      if (options.start) {
+        options.start(tagName, attrs, unary, match.start, match.end);
+      }
     }
-  }
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
+
+    function parseEndTag (tagName, start, end) {
+      var pos, lowerCasedTagName;
+      if (start == null) { start = index; }
+      if (end == null) { end = index; }
+
+      // Find the closest opened tag of the same type
+      if (tagName) {
+        lowerCasedTagName = tagName.toLowerCase();
+        for (pos = stack.length - 1; pos >= 0; pos--) {
+          if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+            break
+          }
+        }
+      } else {
+        // If no tag name is provided, clean shop
+        pos = 0;
+      }
+
+      if (pos >= 0) {
+        // Close all the open elements, up the stack
+        for (var i = stack.length - 1; i >= pos; i--) {
+          if (i > pos || !tagName &&
+            options.warn
+          ) {
+            options.warn(
+              ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+            );
+          }
+          if (options.end) {
+            options.end(stack[i].tag, start, end);
+          }
+        }
+
+        // Remove the open elements from the stack
+        stack.length = pos;
+        lastTag = pos && stack[pos - 1].tag;
+      } else if (lowerCasedTagName === 'br') {
+        if (options.start) {
+          options.start(tagName, [], true, start, end);
+        }
+      } else if (lowerCasedTagName === 'p') {
+        if (options.start) {
+          options.start(tagName, [], false, start, end);
+        }
+        if (options.end) {
+          options.end(tagName, start, end);
+        }
+      }
     }
   }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if ("development" !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if ("development" !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
+
+  /*  */
+
+  /**
+   * Cross-platform code generation for component v-model
+   */
+  function genComponentModel (
+    el,
+    value,
+    modifiers
   ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
+    var ref = modifiers || {};
+    var number = ref.number;
+    var trim = ref.trim;
+
+    var baseValueExpression = '$$v';
+    var valueExpression = baseValueExpression;
+    if (trim) {
+      valueExpression =
+        "(typeof " + baseValueExpression + " === 'string'" +
+        "? " + baseValueExpression + ".trim()" +
+        ": " + baseValueExpression + ")";
+    }
+    if (number) {
+      valueExpression = "_n(" + valueExpression + ")";
+    }
+    var assignment = genAssignmentCode(value, valueExpression);
+
+    el.model = {
+      value: ("(" + value + ")"),
+      expression: ("\"" + value + "\""),
+      callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+    };
   }
-  if (value == null && !prop.required) {
-    return
+
+  /**
+   * Cross-platform codegen helper for generating v-model value assignment code.
+   */
+  function genAssignmentCode (
+    value,
+    assignment
+  ) {
+    var res = parseModel(value);
+    if (res.key === null) {
+      return (value + "=" + assignment)
+    } else {
+      return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+    }
   }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
+
+  /**
+   * Parse a v-model expression into a base path and a final key segment.
+   * Handles both dot-path and possible square brackets.
+   *
+   * Possible cases:
+   *
+   * - test
+   * - test[key]
+   * - test[test1[key]]
+   * - test["a"][key]
+   * - xxx.test[a[a].test1[key]]
+   * - test.xxx.a["asa"][test1[key]]
+   *
+   */
+
+  var len, str, chr, index, expressionPos, expressionEndPos;
+
+
+
+  function parseModel (val) {
+    // Fix https://github.com/vuejs/vue/pull/7730
+    // allow v-model="obj.val " (trailing whitespace)
+    val = val.trim();
+    len = val.length;
+
+    if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+      index = val.lastIndexOf('.');
+      if (index > -1) {
+        return {
+          exp: val.slice(0, index),
+          key: '"' + val.slice(index + 1) + '"'
+        }
+      } else {
+        return {
+          exp: val,
+          key: null
+        }
+      }
+    }
+
+    str = val;
+    index = expressionPos = expressionEndPos = 0;
+
+    while (!eof()) {
+      chr = next();
+      /* istanbul ignore if */
+      if (isStringStart(chr)) {
+        parseString(chr);
+      } else if (chr === 0x5B) {
+        parseBracket(chr);
+      }
     }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
+
+    return {
+      exp: val.slice(0, expressionPos),
+      key: val.slice(expressionPos + 1, expressionEndPos)
     }
   }
-  if (!valid) {
-    warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
-      vm
-    );
-    return
+
+  function next () {
+    return str.charCodeAt(++index)
   }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
+
+  function eof () {
+    return index >= len
   }
-}
 
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+  function isStringStart (chr) {
+    return chr === 0x22 || chr === 0x27
+  }
 
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
-
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
+  function parseBracket (chr) {
+    var inBracket = 1;
+    expressionPos = index;
+    while (!eof()) {
+      chr = next();
+      if (isStringStart(chr)) {
+        parseString(chr);
+        continue
+      }
+      if (chr === 0x5B) { inBracket++; }
+      if (chr === 0x5D) { inBracket--; }
+      if (inBracket === 0) {
+        expressionEndPos = index;
+        break
       }
     }
   }
-  globalHandleError(err, vm, info);
-}
 
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
+  function parseString (chr) {
+    var stringQuote = chr;
+    while (!eof()) {
+      chr = next();
+      if (chr === stringQuote) {
+        break
+      }
     }
   }
-  logError(err, vm, info);
-}
 
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-var callbacks = [];
-function flushCallbacks () {
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  channel.port1.onmessage = flushCallbacks;
-  
-} else {
-  /* istanbul ignore next */
-  
-}
+  /*  */
+
+  var onRE = /^@|^v-on:/;
+  var dirRE = /^v-|^@|^:/;
+  var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
+  var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+  var stripParensRE = /^\(|\)$/g;
 
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  
-} else {
-  // fallback to macro
-  
-}
+  var argRE = /:(.*)$/;
+  var bindRE = /^:|^v-bind:/;
+  var modifierRE = /\.[^.]+/g;
 
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
+  var decodeHTMLCached = cached(he.decode);
 
-/*  */
+  // configurable state
+  var warn$1;
+  var delimiters;
+  var transforms;
+  var preTransforms;
+  var postTransforms;
+  var platformIsPreTag;
+  var platformMustUseProp;
+  var platformGetTagNamespace;
 
-/*  */
 
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
+
+  function createASTElement (
+    tag,
+    attrs,
+    parent
+  ) {
+    return {
+      type: 1,
+      tag: tag,
+      attrsList: attrs,
+      attrsMap: makeAttrsMap(attrs),
+      parent: parent,
+      children: []
     }
   }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
+
+  /**
+   * Convert HTML string to AST.
+   */
+  function parse (
+    template,
+    options
+  ) {
+    warn$1 = options.warn || baseWarn;
+
+    platformIsPreTag = options.isPreTag || no;
+    platformMustUseProp = options.mustUseProp || no;
+    platformGetTagNamespace = options.getTagNamespace || no;
+
+    transforms = pluckModuleFunction(options.modules, 'transformNode');
+    preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+    postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+    delimiters = options.delimiters;
+
+    var stack = [];
+    var preserveWhitespace = options.preserveWhitespace !== false;
+    var root;
+    var currentParent;
+    var inVPre = false;
+    var inPre = false;
+    var warned = false;
+
+    function warnOnce (msg) {
+      if (!warned) {
+        warned = true;
+        warn$1(msg);
+      }
     }
-  }
-  return renderClass(data.staticClass, data.class)
-}
 
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
+    function closeElement (element) {
+      // check pre state
+      if (element.pre) {
+        inVPre = false;
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = false;
+      }
+      // apply post-transforms
+      for (var i = 0; i < postTransforms.length; i++) {
+        postTransforms[i](element, options);
+      }
+    }
 
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
+    parseHTML(template, {
+      warn: warn$1,
+      expectHTML: options.expectHTML,
+      isUnaryTag: options.isUnaryTag,
+      canBeLeftOpenTag: options.canBeLeftOpenTag,
+      shouldDecodeNewlines: options.shouldDecodeNewlines,
+      shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+      shouldKeepComment: options.comments,
+      start: function start (tag, attrs, unary) {
+        // check namespace.
+        // inherit parent ns if there is one
+        var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+        // handle IE svg bug
+        /* istanbul ignore if */
+        if (isIE && ns === 'svg') {
+          attrs = guardIESVGBug(attrs);
+        }
 
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
+        var element = createASTElement(tag, attrs, currentParent);
+        if (ns) {
+          element.ns = ns;
+        }
 
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
+        if (isForbiddenTag(element) && !isServerRendering()) {
+          element.forbidden = true;
+          warn$1(
+            'Templates should only be responsible for mapping the state to the ' +
+            'UI. Avoid placing tags with side-effects in your templates, such as ' +
+            "<" + tag + ">" + ', as they will not be parsed.'
+          );
+        }
+
+        // apply pre-transforms
+        for (var i = 0; i < preTransforms.length; i++) {
+          element = preTransforms[i](element, options) || element;
+        }
+
+        if (!inVPre) {
+          processPre(element);
+          if (element.pre) {
+            inVPre = true;
+          }
+        }
+        if (platformIsPreTag(element.tag)) {
+          inPre = true;
+        }
+        if (inVPre) {
+          processRawAttrs(element);
+        } else if (!element.processed) {
+          // structural directives
+          processFor(element);
+          processIf(element);
+          processOnce(element);
+          // element-scope stuff
+          processElement(element, options);
+        }
+
+        function checkRootConstraints (el) {
+          {
+            if (el.tag === 'slot' || el.tag === 'template') {
+              warnOnce(
+                "Cannot use <" + (el.tag) + "> as component root element because it may " +
+                'contain multiple nodes.'
+              );
+            }
+            if (el.attrsMap.hasOwnProperty('v-for')) {
+              warnOnce(
+                'Cannot use v-for on stateful component root element because ' +
+                'it renders multiple elements.'
+              );
+            }
+          }
+        }
+
+        // tree management
+        if (!root) {
+          root = element;
+          checkRootConstraints(root);
+        } else if (!stack.length) {
+          // allow root elements with v-if, v-else-if and v-else
+          if (root.if && (element.elseif || element.else)) {
+            checkRootConstraints(element);
+            addIfCondition(root, {
+              exp: element.elseif,
+              block: element
+            });
+          } else {
+            warnOnce(
+              "Component template should contain exactly one root element. " +
+              "If you are using v-if on multiple elements, " +
+              "use v-else-if to chain them instead."
+            );
+          }
+        }
+        if (currentParent && !element.forbidden) {
+          if (element.elseif || element.else) {
+            processIfConditions(element, currentParent);
+          } else if (element.slotScope) { // scoped slot
+            currentParent.plain = false;
+            var name = element.slotTarget || '"default"'
+            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          } else {
+            currentParent.children.push(element);
+            element.parent = currentParent;
+          }
+        }
+        if (!unary) {
+          currentParent = element;
+          stack.push(element);
+        } else {
+          closeElement(element);
+        }
+      },
+
+      end: function end () {
+        // remove trailing whitespace
+        var element = stack[stack.length - 1];
+        var lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+          element.children.pop();
+        }
+        // pop stack
+        stack.length -= 1;
+        currentParent = stack[stack.length - 1];
+        closeElement(element);
+      },
+
+      chars: function chars (text) {
+        if (!currentParent) {
+          {
+            if (text === template) {
+              warnOnce(
+                'Component template requires a root element, rather than just text.'
+              );
+            } else if ((text = text.trim())) {
+              warnOnce(
+                ("text \"" + text + "\" outside root element will be ignored.")
+              );
+            }
+          }
+          return
+        }
+        // IE textarea placeholder bug
+        /* istanbul ignore if */
+        if (isIE &&
+          currentParent.tag === 'textarea' &&
+          currentParent.attrsMap.placeholder === text
+        ) {
+          return
+        }
+        var children = currentParent.children;
+        text = inPre || text.trim()
+          ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+          // only preserve whitespace if its not right after a starting tag
+          : preserveWhitespace && children.length ? ' ' : '';
+        if (text) {
+          var res;
+          if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+            children.push({
+              type: 2,
+              expression: res.expression,
+              tokens: res.tokens,
+              text: text
+            });
+          } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+            children.push({
+              type: 3,
+              text: text
+            });
+          }
+        }
+      },
+      comment: function comment (text) {
+        currentParent.children.push({
+          type: 3,
+          text: text,
+          isComment: true
+        });
+      }
+    });
+    return root
   }
-  /* istanbul ignore next */
-  return ''
-}
 
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
+  function processPre (el) {
+    if (getAndRemoveAttr(el, 'v-pre') != null) {
+      el.pre = true;
     }
   }
-  return res
-}
 
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
+  function processRawAttrs (el) {
+    var l = el.attrsList.length;
+    if (l) {
+      var attrs = el.attrs = new Array(l);
+      for (var i = 0; i < l; i++) {
+        attrs[i] = {
+          name: el.attrsList[i].name,
+          value: JSON.stringify(el.attrsList[i].value)
+        };
+      }
+    } else if (!el.pre) {
+      // non root node in pre blocks with no attributes
+      el.plain = true;
     }
   }
-  return res
-}
 
-/*  */
+  function processElement (element, options) {
+    processKey(element);
+
+    // determine whether this is a plain element after
+    // removing structural attributes
+    element.plain = !element.key && !element.attrsList.length;
 
+    processRef(element);
+    processSlot(element);
+    processComponent(element);
+    for (var i = 0; i < transforms.length; i++) {
+      element = transforms[i](element, options) || element;
+    }
+    processAttrs(element);
+  }
 
+  function processKey (el) {
+    var exp = getBindingAttr(el, 'key');
+    if (exp) {
+      {
+        if (el.tag === 'template') {
+          warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+        }
+        if (el.for) {
+          var iterator = el.iterator2 || el.iterator1;
+          var parent = el.parent;
+          if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+            warn$1(
+              "Do not use v-for index as key on <transtion-group> children, " +
+              "this is the same as not using keys."
+            );
+          }
+        }
+      }
+      el.key = exp;
+    }
+  }
 
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
+  function processRef (el) {
+    var ref = getBindingAttr(el, 'ref');
+    if (ref) {
+      el.ref = ref;
+      el.refInFor = checkInFor(el);
+    }
+  }
 
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
+  function processFor (el) {
+    var exp;
+    if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+      var res = parseFor(exp);
+      if (res) {
+        extend(el, res);
+      } else {
+        warn$1(
+          ("Invalid v-for expression: " + exp)
+        );
+      }
+    }
+  }
 
-var isPreTag = function (tag) { return tag === 'pre'; };
 
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
 
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
+  function parseFor (exp) {
+    var inMatch = exp.match(forAliasRE);
+    if (!inMatch) { return }
+    var res = {};
+    res.for = inMatch[2].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
+    var iteratorMatch = alias.match(forIteratorRE);
+    if (iteratorMatch) {
+      res.alias = alias.replace(forIteratorRE, '').trim();
+      res.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        res.iterator2 = iteratorMatch[2].trim();
+      }
+    } else {
+      res.alias = alias;
+    }
+    return res
   }
-}
-
 
+  function processIf (el) {
+    var exp = getAndRemoveAttr(el, 'v-if');
+    if (exp) {
+      el.if = exp;
+      addIfCondition(el, {
+        exp: exp,
+        block: el
+      });
+    } else {
+      if (getAndRemoveAttr(el, 'v-else') != null) {
+        el.else = true;
+      }
+      var elseif = getAndRemoveAttr(el, 'v-else-if');
+      if (elseif) {
+        el.elseif = elseif;
+      }
+    }
+  }
 
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+  function processIfConditions (el, parent) {
+    var prev = findPrevElement(parent.children);
+    if (prev && prev.if) {
+      addIfCondition(prev, {
+        exp: el.elseif,
+        block: el
+      });
+    } else {
+      warn$1(
+        "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+        "used on element <" + (el.tag) + "> without corresponding v-if."
+      );
+    }
+  }
 
-/*  */
+  function findPrevElement (children) {
+    var i = children.length;
+    while (i--) {
+      if (children[i].type === 1) {
+        return children[i]
+      } else {
+        if (children[i].text !== ' ') {
+          warn$1(
+            "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+            "will be ignored."
+          );
+        }
+        children.pop();
+      }
+    }
+  }
 
-/**
- * Query an element selector if it's not an element already.
- */
+  function addIfCondition (el, condition) {
+    if (!el.ifConditions) {
+      el.ifConditions = [];
+    }
+    el.ifConditions.push(condition);
+  }
 
-/*  */
+  function processOnce (el) {
+    var once$$1 = getAndRemoveAttr(el, 'v-once');
+    if (once$$1 != null) {
+      el.once = true;
+    }
+  }
 
-function renderClass$1 (node) {
-  var classList = genClassForVnode(node);
-  if (classList !== '') {
-    return (" class=\"" + (escape(classList)) + "\"")
+  function processSlot (el) {
+    if (el.tag === 'slot') {
+      el.slotName = getBindingAttr(el, 'name');
+      if (el.key) {
+        warn$1(
+          "`key` does not work on <slot> because slots are abstract outlets " +
+          "and can possibly expand into multiple elements. " +
+          "Use the key on a wrapping element instead."
+        );
+      }
+    } else {
+      var slotScope;
+      if (el.tag === 'template') {
+        slotScope = getAndRemoveAttr(el, 'scope');
+        /* istanbul ignore if */
+        if (slotScope) {
+          warn$1(
+            "the \"scope\" attribute for scoped slots have been deprecated and " +
+            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+            "can also be used on plain elements in addition to <template> to " +
+            "denote scoped slots.",
+            true
+          );
+        }
+        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+        /* istanbul ignore if */
+        if (el.attrsMap['v-for']) {
+          warn$1(
+            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+            "(v-for takes higher priority). Use a wrapper <template> for the " +
+            "scoped slot to make it clearer.",
+            true
+          );
+        }
+        el.slotScope = slotScope;
+      }
+      var slotTarget = getBindingAttr(el, 'slot');
+      if (slotTarget) {
+        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+        // preserve slot as an attribute for native shadow DOM compat
+        // only for non-scoped slots.
+        if (el.tag !== 'template' && !el.slotScope) {
+          addAttr(el, 'slot', slotTarget);
+        }
+      }
+    }
   }
-}
 
-/*  */
+  function processComponent (el) {
+    var binding;
+    if ((binding = getBindingAttr(el, 'is'))) {
+      el.component = binding;
+    }
+    if (getAndRemoveAttr(el, 'inline-template') != null) {
+      el.inlineTemplate = true;
+    }
+  }
 
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+  function processAttrs (el) {
+    var list = el.attrsList;
+    var i, l, name, rawName, value, modifiers, isProp;
+    for (i = 0, l = list.length; i < l; i++) {
+      name = rawName = list[i].name;
+      value = list[i].value;
+      if (dirRE.test(name)) {
+        // mark element as dynamic
+        el.hasBindings = true;
+        // modifiers
+        modifiers = parseModifiers(name);
+        if (modifiers) {
+          name = name.replace(modifierRE, '');
+        }
+        if (bindRE.test(name)) { // v-bind
+          name = name.replace(bindRE, '');
+          value = parseFilters(value);
+          isProp = false;
+          if (
+            value.trim().length === 0
+          ) {
+            warn$1(
+              ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+            );
+          }
+          if (modifiers) {
+            if (modifiers.prop) {
+              isProp = true;
+              name = camelize(name);
+              if (name === 'innerHtml') { name = 'innerHTML'; }
+            }
+            if (modifiers.camel) {
+              name = camelize(name);
+            }
+            if (modifiers.sync) {
+              addHandler(
+                el,
+                ("update:" + (camelize(name))),
+                genAssignmentCode(value, "$event")
+              );
+            }
+          }
+          if (isProp || (
+            !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+          )) {
+            addProp(el, name, value);
+          } else {
+            addAttr(el, name, value);
+          }
+        } else if (onRE.test(name)) { // v-on
+          name = name.replace(onRE, '');
+          addHandler(el, name, value, modifiers, false, warn$1);
+        } else { // normal directives
+          name = name.replace(dirRE, '');
+          // parse arg
+          var argMatch = name.match(argRE);
+          var arg = argMatch && argMatch[1];
+          if (arg) {
+            name = name.slice(0, -(arg.length + 1));
+          }
+          addDirective(el, name, rawName, value, arg, modifiers);
+          if (name === 'model') {
+            checkForAliasModel(el, value);
+          }
+        }
+      } else {
+        // literal attribute
+        {
+          var res = parseText(value, delimiters);
+          if (res) {
+            warn$1(
+              name + "=\"" + value + "\": " +
+              'Interpolation inside attributes has been removed. ' +
+              'Use v-bind or the colon shorthand instead. For example, ' +
+              'instead of <div id="{{ val }}">, use <div :id="val">.'
+            );
+          }
+        }
+        addAttr(el, name, JSON.stringify(value));
+        // #6887 firefox doesn't update muted state if set via attribute
+        // even immediately after element creation
+        if (!el.component &&
+            name === 'muted' &&
+            platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+          addProp(el, name, 'true');
+        }
+      }
     }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
+  }
+
+  function checkInFor (el) {
+    var parent = el;
+    while (parent) {
+      if (parent.for !== undefined) {
+        return true
       }
+      parent = parent.parent;
     }
+    return false
   }
 
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
+  function parseModifiers (name) {
+    var match = name.match(modifierRE);
+    if (match) {
+      var ret = {};
+      match.forEach(function (m) { ret[m.slice(1)] = true; });
+      return ret
     }
   }
-  return res
-}
 
-/*  */
-
-function genStyle (style) {
-  var styleText = '';
-  for (var key in style) {
-    var value = style[key];
-    var hyphenatedKey = hyphenate(key);
-    if (Array.isArray(value)) {
-      for (var i = 0, len = value.length; i < len; i++) {
-        styleText += hyphenatedKey + ":" + (value[i]) + ";";
+  function makeAttrsMap (attrs) {
+    var map = {};
+    for (var i = 0, l = attrs.length; i < l; i++) {
+      if (
+        map[attrs[i].name] && !isIE && !isEdge
+      ) {
+        warn$1('duplicate attribute: ' + attrs[i].name);
       }
-    } else {
-      styleText += hyphenatedKey + ":" + value + ";";
+      map[attrs[i].name] = attrs[i].value;
     }
+    return map
   }
-  return styleText
-}
 
-function renderStyle (vnode) {
-  var styleText = genStyle(getStyle(vnode, false));
-  if (styleText !== '') {
-    return (" style=" + (JSON.stringify(escape(styleText))))
+  // for script (e.g. type="x/template") or style, do not decode content
+  function isTextTag (el) {
+    return el.tag === 'script' || el.tag === 'style'
   }
-}
 
-var modules = [
-  renderAttrs,
-  renderDOMProps,
-  renderClass$1,
-  renderStyle
-]
+  function isForbiddenTag (el) {
+    return (
+      el.tag === 'style' ||
+      (el.tag === 'script' && (
+        !el.attrsMap.type ||
+        el.attrsMap.type === 'text/javascript'
+      ))
+    )
+  }
 
-/*  */
+  var ieNSBug = /^xmlns:NS\d+/;
+  var ieNSPrefix = /^NS\d+:/;
 
-function show (node, dir) {
-  if (!dir.value) {
-    var style = node.data.style || (node.data.style = {});
-    if (Array.isArray(style)) {
-      style.push({ display: 'none' });
-    } else {
-      style.display = 'none';
-    }
-  }
-}
-
-/*  */
-
-// this is only applied for <select v-model> because it is the only edge case
-// that must be done at runtime instead of compile time.
-function model (node, dir) {
-  if (!node.children) { return }
-  var value = dir.value;
-  var isMultiple = node.data.attrs && node.data.attrs.multiple;
-  for (var i = 0, l = node.children.length; i < l; i++) {
-    var option = node.children[i];
-    if (option.tag === 'option') {
-      if (isMultiple) {
-        var selected =
-          Array.isArray(value) &&
-          (looseIndexOf(value, getValue(option)) > -1);
-        if (selected) {
-          setSelected(option);
-        }
-      } else {
-        if (looseEqual(value, getValue(option))) {
-          setSelected(option);
-          return
-        }
+  /* istanbul ignore next */
+  function guardIESVGBug (attrs) {
+    var res = [];
+    for (var i = 0; i < attrs.length; i++) {
+      var attr = attrs[i];
+      if (!ieNSBug.test(attr.name)) {
+        attr.name = attr.name.replace(ieNSPrefix, '');
+        res.push(attr);
       }
     }
+    return res
   }
-}
-
-function getValue (option) {
-  var data = option.data || {};
-  return (
-    (data.attrs && data.attrs.value) ||
-    (data.domProps && data.domProps.value) ||
-    (option.children && option.children[0] && option.children[0].text)
-  )
-}
-
-function setSelected (option) {
-  var data = option.data || (option.data = {});
-  var attrs = data.attrs || (data.attrs = {});
-  attrs.selected = '';
-}
-
-var directives = {
-  show: show,
-  model: model
-}
-
-/*  */
-
-var isUnaryTag = makeMap(
-  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-  'link,meta,param,source,track,wbr'
-);
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-var canBeLeftOpenTag = makeMap(
-  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-);
-
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-var isNonPhrasingTag = makeMap(
-  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-  'title,tr,track'
-);
-
-/*  */
-
-var MAX_STACK_DEPTH = 1000;
-var noop$1 = function (_) { return _; };
-
-var defer = typeof process !== 'undefined' && process.nextTick
-  ? process.nextTick
-  : typeof Promise !== 'undefined'
-    ? function (fn) { return Promise.resolve().then(fn); }
-    : typeof setTimeout !== 'undefined'
-      ? setTimeout
-      : noop$1;
-
-if (defer === noop$1) {
-  throw new Error(
-    'Your JavaScript runtime does not support any asynchronous primitives ' +
-    'that are required by vue-server-renderer. Please use a polyfill for ' +
-    'either Promise or setTimeout.'
-  )
-}
-
-function createWriteFunction (
-  write,
-  onError
-) {
-  var stackDepth = 0;
-  var cachedWrite = function (text, next) {
-    if (text && cachedWrite.caching) {
-      cachedWrite.cacheBuffer[cachedWrite.cacheBuffer.length - 1] += text;
-    }
-    var waitForNext = write(text, next);
-    if (waitForNext !== true) {
-      if (stackDepth >= MAX_STACK_DEPTH) {
-        defer(function () {
-          try { next(); } catch (e) {
-            onError(e);
-          }
-        });
-      } else {
-        stackDepth++;
-        next();
-        stackDepth--;
-      }
-    }
-  };
-  cachedWrite.caching = false;
-  cachedWrite.cacheBuffer = [];
-  cachedWrite.componentBuffer = [];
-  return cachedWrite
-}
-
-/*  */
-
-var RenderContext = function RenderContext (options) {
-  this.userContext = options.userContext;
-  this.activeInstance = options.activeInstance;
-  this.renderStates = [];
-
-  this.write = options.write;
-  this.done = options.done;
-  this.renderNode = options.renderNode;
-
-  this.isUnaryTag = options.isUnaryTag;
-  this.modules = options.modules;
-  this.directives = options.directives;
-
-  var cache = options.cache;
-  if (cache && (!cache.get || !cache.set)) {
-    throw new Error('renderer cache must implement at least get & set.')
-  }
-  this.cache = cache;
-  this.get = cache && normalizeAsync(cache, 'get');
-  this.has = cache && normalizeAsync(cache, 'has');
-
-  this.next = this.next.bind(this);
-};
-
-RenderContext.prototype.next = function next () {
-  var lastState = this.renderStates[this.renderStates.length - 1];
-  if (isUndef(lastState)) {
-    return this.done()
-  }
-  switch (lastState.type) {
-    case 'Element':
-    case 'Fragment':
-      var children = lastState.children;
-    var total = lastState.total;
-      var rendered = lastState.rendered++;
-      if (rendered < total) {
-        this.renderNode(children[rendered], false, this);
-      } else {
-        this.renderStates.pop();
-        if (lastState.type === 'Element') {
-          this.write(lastState.endTag, this.next);
-        } else {
-          this.next();
-        }
-      }
-      break
-    case 'Component':
-      this.renderStates.pop();
-      this.activeInstance = lastState.prevActive;
-      this.next();
-      break
-    case 'ComponentWithCache':
-      this.renderStates.pop();
-      var buffer = lastState.buffer;
-    var bufferIndex = lastState.bufferIndex;
-    var componentBuffer = lastState.componentBuffer;
-    var key = lastState.key;
-      var result = {
-        html: buffer[bufferIndex],
-        components: componentBuffer[bufferIndex]
-      };
-      this.cache.set(key, result);
-      if (bufferIndex === 0) {
-        // this is a top-level cached component,
-        // exit caching mode.
-        this.write.caching = false;
-      } else {
-        // parent component is also being cached,
-        // merge self into parent's result
-        buffer[bufferIndex - 1] += result.html;
-        var prev = componentBuffer[bufferIndex - 1];
-        result.components.forEach(function (c) { return prev.add(c); });
-      }
-      buffer.length = bufferIndex;
-      componentBuffer.length = bufferIndex;
-      this.next();
-      break
-  }
-};
-
-function normalizeAsync (cache, method) {
-  var fn = cache[method];
-  if (isUndef(fn)) {
-    return
-  } else if (fn.length > 1) {
-    return function (key, cb) { return fn.call(cache, key, cb); }
-  } else {
-    return function (key, cb) { return cb(fn.call(cache, key)); }
-  }
-}
-
-/*  */
-
-var validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters (exp) {
-  var inSingle = false;
-  var inDouble = false;
-  var inTemplateString = false;
-  var inRegex = false;
-  var curly = 0;
-  var square = 0;
-  var paren = 0;
-  var lastFilterIndex = 0;
-  var c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
-    } else if (
-      c === 0x7C && // pipe
-      exp.charCodeAt(i + 1) !== 0x7C &&
-      exp.charCodeAt(i - 1) !== 0x7C &&
-      !curly && !square && !paren
-    ) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
-      }
-    } else {
-      switch (c) {
-        case 0x22: inDouble = true; break         // "
-        case 0x27: inSingle = true; break         // '
-        case 0x60: inTemplateString = true; break // `
-        case 0x28: paren++; break                 // (
-        case 0x29: paren--; break                 // )
-        case 0x5B: square++; break                // [
-        case 0x5D: square--; break                // ]
-        case 0x7B: curly++; break                 // {
-        case 0x7D: curly--; break                 // }
-      }
-      if (c === 0x2f) { // /
-        var j = i - 1;
-        var p = (void 0);
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') { break }
-        }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
-        }
+
+  function checkForAliasModel (el, value) {
+    var _el = el;
+    while (_el) {
+      if (_el.for && _el.alias === value) {
+        warn$1(
+          "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+          "You are binding v-model directly to a v-for iteration alias. " +
+          "This will not be able to modify the v-for source array because " +
+          "writing to the alias is like modifying a function local variable. " +
+          "Consider using an array of objects and use v-model on an object property instead."
+        );
       }
+      _el = _el.parent;
     }
   }
 
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
-  }
-
-  function pushFilter () {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
-  }
+  /*  */
 
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
-    }
-  }
+  function preTransformNode (el, options) {
+    if (el.tag === 'input') {
+      var map = el.attrsMap;
+      if (!map['v-model']) {
+        return
+      }
 
-  return expression
-}
+      var typeBinding;
+      if (map[':type'] || map['v-bind:type']) {
+        typeBinding = getBindingAttr(el, 'type');
+      }
+      if (!map.type && !typeBinding && map['v-bind']) {
+        typeBinding = "(" + (map['v-bind']) + ").type";
+      }
 
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
-  }
-}
-
-/*  */
-
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
-var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-var buildRegex = cached(function (delimiters) {
-  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-});
-
-
-
-function parseText (
-  text,
-  delimiters
-) {
-  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return
-  }
-  var tokens = [];
-  var rawTokens = [];
-  var lastIndex = tagRE.lastIndex = 0;
-  var match, index, tokenValue;
-  while ((match = tagRE.exec(text))) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      rawTokens.push(tokenValue = text.slice(lastIndex, index));
-      tokens.push(JSON.stringify(tokenValue));
-    }
-    // tag token
-    var exp = parseFilters(match[1].trim());
-    tokens.push(("_s(" + exp + ")"));
-    rawTokens.push({ '@binding': exp });
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    rawTokens.push(tokenValue = text.slice(lastIndex));
-    tokens.push(JSON.stringify(tokenValue));
-  }
-  return {
-    expression: tokens.join('+'),
-    tokens: rawTokens
-  }
-}
-
-/*  */
-
-function baseWarn (msg) {
-  console.error(("[Vue compiler]: " + msg));
-}
-
-function pluckModuleFunction (
-  modules,
-  key
-) {
-  return modules
-    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
-    : []
-}
-
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-// add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
-function addDirective (
-  el,
-  name,
-  rawName,
-  value,
-  arg,
-  modifiers
-) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
-  el.plain = false;
-}
-
-function addHandler (
-  el,
-  name,
-  value,
-  modifiers,
-  important,
-  warn
-) {
-  modifiers = modifiers || emptyObject;
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (
-    "development" !== 'production' && warn &&
-    modifiers.prevent && modifiers.passive
-  ) {
-    warn(
-      'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
-    );
-  }
+      if (typeBinding) {
+        var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+        var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+        var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+        var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+        // 1. checkbox
+        var branch0 = cloneASTElement(el);
+        // process for on the main node
+        processFor(branch0);
+        addRawAttr(branch0, 'type', 'checkbox');
+        processElement(branch0, options);
+        branch0.processed = true; // prevent it from double-processed
+        branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
+        addIfCondition(branch0, {
+          exp: branch0.if,
+          block: branch0
+        });
+        // 2. add radio else-if condition
+        var branch1 = cloneASTElement(el);
+        getAndRemoveAttr(branch1, 'v-for', true);
+        addRawAttr(branch1, 'type', 'radio');
+        processElement(branch1, options);
+        addIfCondition(branch0, {
+          exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
+          block: branch1
+        });
+        // 3. other
+        var branch2 = cloneASTElement(el);
+        getAndRemoveAttr(branch2, 'v-for', true);
+        addRawAttr(branch2, ':type', typeBinding);
+        processElement(branch2, options);
+        addIfCondition(branch0, {
+          exp: ifCondition,
+          block: branch2
+        });
 
-  // check capture modifier
-  if (modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
-  }
-  /* istanbul ignore if */
-  if (modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
-  }
+        if (hasElse) {
+          branch0.else = true;
+        } else if (elseIfCondition) {
+          branch0.elseif = elseIfCondition;
+        }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
+        return branch0
+      }
     }
   }
 
-  var events;
-  if (modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
+  function cloneASTElement (el) {
+    return createASTElement(el.tag, el.attrsList.slice(), el.parent)
   }
 
-  var newHandler = {
-    value: value.trim()
+  var model$1 = {
+    preTransformNode: preTransformNode
   };
-  if (modifiers !== emptyObject) {
-    newHandler.modifiers = modifiers;
-  }
-
-  var handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-
-  el.plain = false;
-}
-
-function getBindingAttr (
-  el,
-  name,
-  getStatic
-) {
-  var dynamicValue =
-    getAndRemoveAttr(el, ':' + name) ||
-    getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue)
-  } else if (getStatic !== false) {
-    var staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue)
-    }
-  }
-}
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-function getAndRemoveAttr (
-  el,
-  name,
-  removeFromMap
-) {
-  var val;
-  if ((val = el.attrsMap[name]) != null) {
-    var list = el.attrsList;
-    for (var i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break
-      }
-    }
-  }
-  if (removeFromMap) {
-    delete el.attrsMap[name];
-  }
-  return val
-}
 
-/*  */
+  var modules$1 = [
+    klass,
+    style,
+    model$1
+  ];
 
-function transformNode (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticClass = getAndRemoveAttr(el, 'class');
-  if ("development" !== 'production' && staticClass) {
-    var res = parseText(staticClass, options.delimiters);
-    if (res) {
-      warn(
-        "class=\"" + staticClass + "\": " +
-        'Interpolation inside attributes has been removed. ' +
-        'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
-      );
-    }
-  }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
+  /*  */
 
-function genData (el) {
-  var data = '';
-  if (el.staticClass) {
-    data += "staticClass:" + (el.staticClass) + ",";
-  }
-  if (el.classBinding) {
-    data += "class:" + (el.classBinding) + ",";
-  }
-  return data
-}
+  var warn$2;
 
-var klass = {
-  staticKeys: ['staticClass'],
-  transformNode: transformNode,
-  genData: genData
-}
+  // in some cases, the event used has to be determined at runtime
+  // so we used some reserved tokens during compile.
+  var RANGE_TOKEN = '__r';
 
-/*  */
+  function model$2 (
+    el,
+    dir,
+    _warn
+  ) {
+    warn$2 = _warn;
+    var value = dir.value;
+    var modifiers = dir.modifiers;
+    var tag = el.tag;
+    var type = el.attrsMap.type;
 
-function transformNode$1 (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
     {
-      var res = parseText(staticStyle, options.delimiters);
-      if (res) {
-        warn(
-          "style=\"" + staticStyle + "\": " +
-          'Interpolation inside attributes has been removed. ' +
-          'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
+      // inputs with type="file" are read only and setting the input's
+      // value will throw an error.
+      if (tag === 'input' && type === 'file') {
+        warn$2(
+          "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+          "File inputs are read only. Use a v-on:change listener instead."
         );
       }
     }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-  }
 
-  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
-  }
-}
+    if (el.component) {
+      genComponentModel(el, value, modifiers);
+      // component v-model doesn't need extra runtime
+      return false
+    } else if (tag === 'select') {
+      genSelect(el, value, modifiers);
+    } else if (tag === 'input' && type === 'checkbox') {
+      genCheckboxModel(el, value, modifiers);
+    } else if (tag === 'input' && type === 'radio') {
+      genRadioModel(el, value, modifiers);
+    } else if (tag === 'input' || tag === 'textarea') {
+      genDefaultModel(el, value, modifiers);
+    } else {
+      genComponentModel(el, value, modifiers);
+      // component v-model doesn't need extra runtime
+      return false
+    }
 
-function genData$1 (el) {
-  var data = '';
-  if (el.staticStyle) {
-    data += "staticStyle:" + (el.staticStyle) + ",";
-  }
-  if (el.styleBinding) {
-    data += "style:(" + (el.styleBinding) + "),";
+    // ensure runtime directive metadata
+    return true
   }
-  return data
-}
-
-var style = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-}
-
-var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-
-
-
-
-function createCommonjsModule(fn, module) {
-	return module = { exports: {} }, fn(module, module.exports), module.exports;
-}
-
-var he = createCommonjsModule(function (module, exports) {
-/*! https://mths.be/he v1.1.1 by @mathias | MIT license */
-(function(root) {
-
-	// Detect free variables `exports`.
-	var freeExports = 'object' == 'object' && exports;
-
-	// Detect free variable `module`.
-	var freeModule = 'object' == 'object' && module &&
-		module.exports == freeExports && module;
-
-	// Detect free variable `global`, from Node.js or Browserified code,
-	// and use it as `root`.
-	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
-	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
-		root = freeGlobal;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	// All astral symbols.
-	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
-	// All ASCII symbols (not just printable ASCII) except those listed in the
-	// first column of the overrides table.
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
-	var regexAsciiWhitelist = /[\x01-\x7F]/g;
-	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
-	// code points listed in the first column of the overrides table on
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
-	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
-
-	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
-	var encodeMap = 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','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
-
-	var regexEscape = /["&'<>`]/g;
-	var escapeMap = {
-		'"': '&quot;',
-		'&': '&amp;',
-		'\'': '&#x27;',
-		'<': '&lt;',
-		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
-		// following is not strictly necessary unless it’s part of a tag or an
-		// unquoted attribute value. We’re only escaping it to support those
-		// situations, and for XML support.
-		'>': '&gt;',
-		// In Internet Explorer ≤ 8, the backtick character can be used
-		// to break out of (un)quoted attribute values or HTML comments.
-		// See http://html5sec.org/#102, http://html5sec.org/#108, and
-		// http://html5sec.org/#133.
-		'`': '&#x60;'
-	};
-
-	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
-	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
-	var regexDecode = /&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)([=a-zA-Z0-9])?/g;
-	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
-	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
-	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
-	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
-
-	/*--------------------------------------------------------------------------*/
-
-	var stringFromCharCode = String.fromCharCode;
-
-	var object = {};
-	var hasOwnProperty = object.hasOwnProperty;
-	var has = function(object, propertyName) {
-		return hasOwnProperty.call(object, propertyName);
-	};
-
-	var contains = function(array, value) {
-		var index = -1;
-		var length = array.length;
-		while (++index < length) {
-			if (array[index] == value) {
-				return true;
-			}
-		}
-		return false;
-	};
-
-	var merge = function(options, defaults) {
-		if (!options) {
-			return defaults;
-		}
-		var result = {};
-		var key;
-		for (key in defaults) {
-			// A `hasOwnProperty` check is not needed here, since only recognized
-			// option names are used anyway. Any others are ignored.
-			result[key] = has(options, key) ? options[key] : defaults[key];
-		}
-		return result;
-	};
-
-	// Modified version of `ucs2encode`; see https://mths.be/punycode.
-	var codePointToSymbol = function(codePoint, strict) {
-		var output = '';
-		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
-			// See issue #4:
-			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
-			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
-			// REPLACEMENT CHARACTER.”
-			if (strict) {
-				parseError('character reference outside the permissible Unicode range');
-			}
-			return '\uFFFD';
-		}
-		if (has(decodeMapNumeric, codePoint)) {
-			if (strict) {
-				parseError('disallowed character reference');
-			}
-			return decodeMapNumeric[codePoint];
-		}
-		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
-			parseError('disallowed character reference');
-		}
-		if (codePoint > 0xFFFF) {
-			codePoint -= 0x10000;
-			output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
-			codePoint = 0xDC00 | codePoint & 0x3FF;
-		}
-		output += stringFromCharCode(codePoint);
-		return output;
-	};
-
-	var hexEscape = function(codePoint) {
-		return '&#x' + codePoint.toString(16).toUpperCase() + ';';
-	};
-
-	var decEscape = function(codePoint) {
-		return '&#' + codePoint + ';';
-	};
-
-	var parseError = function(message) {
-		throw Error('Parse error: ' + message);
-	};
-
-	/*--------------------------------------------------------------------------*/
-
-	var encode = function(string, options) {
-		options = merge(options, encode.options);
-		var strict = options.strict;
-		if (strict && regexInvalidRawCodePoint.test(string)) {
-			parseError('forbidden code point');
-		}
-		var encodeEverything = options.encodeEverything;
-		var useNamedReferences = options.useNamedReferences;
-		var allowUnsafeSymbols = options.allowUnsafeSymbols;
-		var escapeCodePoint = options.decimal ? decEscape : hexEscape;
-
-		var escapeBmpSymbol = function(symbol) {
-			return escapeCodePoint(symbol.charCodeAt(0));
-		};
-
-		if (encodeEverything) {
-			// Encode ASCII symbols.
-			string = string.replace(regexAsciiWhitelist, function(symbol) {
-				// Use named references if requested & possible.
-				if (useNamedReferences && has(encodeMap, symbol)) {
-					return '&' + encodeMap[symbol] + ';';
-				}
-				return escapeBmpSymbol(symbol);
-			});
-			// Shorten a few escapes that represent two symbols, of which at least one
-			// is within the ASCII range.
-			if (useNamedReferences) {
-				string = string
-					.replace(/&gt;\u20D2/g, '&nvgt;')
-					.replace(/&lt;\u20D2/g, '&nvlt;')
-					.replace(/&#x66;&#x6A;/g, '&fjlig;');
-			}
-			// Encode non-ASCII symbols.
-			if (useNamedReferences) {
-				// Encode non-ASCII symbols that can be replaced with a named reference.
-				string = string.replace(regexEncodeNonAscii, function(string) {
-					// Note: there is no need to check `has(encodeMap, string)` here.
-					return '&' + encodeMap[string] + ';';
-				});
-			}
-			// Note: any remaining non-ASCII symbols are handled outside of the `if`.
-		} else if (useNamedReferences) {
-			// Apply named character references.
-			// Encode `<>"'&` using named character references.
-			if (!allowUnsafeSymbols) {
-				string = string.replace(regexEscape, function(string) {
-					return '&' + encodeMap[string] + ';'; // no need to check `has()` here
-				});
-			}
-			// Shorten escapes that represent two symbols, of which at least one is
-			// `<>"'&`.
-			string = string
-				.replace(/&gt;\u20D2/g, '&nvgt;')
-				.replace(/&lt;\u20D2/g, '&nvlt;');
-			// Encode non-ASCII symbols that can be replaced with a named reference.
-			string = string.replace(regexEncodeNonAscii, function(string) {
-				// Note: there is no need to check `has(encodeMap, string)` here.
-				return '&' + encodeMap[string] + ';';
-			});
-		} else if (!allowUnsafeSymbols) {
-			// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
-			// using named character references.
-			string = string.replace(regexEscape, escapeBmpSymbol);
-		}
-		return string
-			// Encode astral symbols.
-			.replace(regexAstralSymbols, function($0) {
-				// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
-				var high = $0.charCodeAt(0);
-				var low = $0.charCodeAt(1);
-				var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
-				return escapeCodePoint(codePoint);
-			})
-			// Encode any remaining BMP symbols that are not printable ASCII symbols
-			// using a hexadecimal escape.
-			.replace(regexBmpWhitelist, escapeBmpSymbol);
-	};
-	// Expose default options (so they can be overridden globally).
-	encode.options = {
-		'allowUnsafeSymbols': false,
-		'encodeEverything': false,
-		'strict': false,
-		'useNamedReferences': false,
-		'decimal' : false
-	};
-
-	var decode = function(html, options) {
-		options = merge(options, decode.options);
-		var strict = options.strict;
-		if (strict && regexInvalidEntity.test(html)) {
-			parseError('malformed character reference');
-		}
-		return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7) {
-			var codePoint;
-			var semicolon;
-			var decDigits;
-			var hexDigits;
-			var reference;
-			var next;
-			if ($1) {
-				// Decode decimal escapes, e.g. `&#119558;`.
-				decDigits = $1;
-				semicolon = $2;
-				if (strict && !semicolon) {
-					parseError('character reference was not terminated by a semicolon');
-				}
-				codePoint = parseInt(decDigits, 10);
-				return codePointToSymbol(codePoint, strict);
-			}
-			if ($3) {
-				// Decode hexadecimal escapes, e.g. `&#x1D306;`.
-				hexDigits = $3;
-				semicolon = $4;
-				if (strict && !semicolon) {
-					parseError('character reference was not terminated by a semicolon');
-				}
-				codePoint = parseInt(hexDigits, 16);
-				return codePointToSymbol(codePoint, strict);
-			}
-			if ($5) {
-				// Decode named character references with trailing `;`, e.g. `&copy;`.
-				reference = $5;
-				if (has(decodeMap, reference)) {
-					return decodeMap[reference];
-				} else {
-					// Ambiguous ampersand. https://mths.be/notes/ambiguous-ampersands
-					if (strict) {
-						parseError(
-							'named character reference was not terminated by a semicolon'
-						);
-					}
-					return $0;
-				}
-			}
-			// If we’re still here, it’s a legacy reference for sure. No need for an
-			// extra `if` check.
-			// Decode named character references without trailing `;`, e.g. `&amp`
-			// This is only a parse error if it gets converted to `&`, or if it is
-			// followed by `=` in an attribute context.
-			reference = $6;
-			next = $7;
-			if (next && options.isAttributeValue) {
-				if (strict && next == '=') {
-					parseError('`&` did not start a character reference');
-				}
-				return $0;
-			} else {
-				if (strict) {
-					parseError(
-						'named character reference was not terminated by a semicolon'
-					);
-				}
-				// Note: there is no need to check `has(decodeMapLegacy, reference)`.
-				return decodeMapLegacy[reference] + (next || '');
-			}
-		});
-	};
-	// Expose default options (so they can be overridden globally).
-	decode.options = {
-		'isAttributeValue': false,
-		'strict': false
-	};
-
-	var escape = function(string) {
-		return string.replace(regexEscape, function($0) {
-			// Note: there is no need to check `has(escapeMap, $0)` here.
-			return escapeMap[$0];
-		});
-	};
-
-	/*--------------------------------------------------------------------------*/
-
-	var he = {
-		'version': '1.1.1',
-		'encode': encode,
-		'decode': decode,
-		'escape': escape,
-		'unescape': decode
-	};
-
-	// Some AMD build optimizers, like r.js, check for specific condition patterns
-	// like the following:
-	if (
-		typeof undefined == 'function' &&
-		typeof undefined.amd == 'object' &&
-		undefined.amd
-	) {
-		undefined(function() {
-			return he;
-		});
-	}	else if (freeExports && !freeExports.nodeType) {
-		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
-			freeModule.exports = he;
-		} else { // in Narwhal or RingoJS v0.7.0-
-			for (var key in he) {
-				has(he, key) && (freeExports[key] = he[key]);
-			}
-		}
-	} else { // in Rhino or a web browser
-		root.he = he;
-	}
-
-}(commonjsGlobal));
-});
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
-// Regular Expressions for parsing tags and attributes
-var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-var startTagOpen = new RegExp(("^<" + qnameCapture));
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
-var comment = /^<!\--/;
-var conditionalComment = /^<!\[/;
-
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n',
-  '&#9;': '\t'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) { return decodingMap[match]; })
-}
-
-function parseHTML (html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
-            }
-            advance(commentEnd + 3);
-            continue
-          }
-        }
-
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          var conditionalEnd = html.indexOf(']>');
 
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
-            continue
-          }
-        }
+  function genCheckboxModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var valueBinding = getBindingAttr(el, 'value') || 'null';
+    var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+    var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+    addProp(el, 'checked',
+      "Array.isArray(" + value + ")" +
+      "?_i(" + value + "," + valueBinding + ")>-1" + (
+        trueValueBinding === 'true'
+          ? (":(" + value + ")")
+          : (":_q(" + value + "," + trueValueBinding + ")")
+      )
+    );
+    addHandler(el, 'change',
+      "var $$a=" + value + "," +
+          '$$el=$event.target,' +
+          "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+      'if(Array.isArray($$a)){' +
+        "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+            '$$i=_i($$a,$$v);' +
+        "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+        "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
+      "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+      null, true
+    );
+  }
 
-        // Doctype:
-        var doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue
-        }
+  function genRadioModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var valueBinding = getBindingAttr(el, 'value') || 'null';
+    valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+    addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+    addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+  }
 
-        // End tag:
-        var endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          var curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue
-        }
+  function genSelect (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var selectedVal = "Array.prototype.filter" +
+      ".call($event.target.options,function(o){return o.selected})" +
+      ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+      "return " + (number ? '_n(val)' : 'val') + "})";
+
+    var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+    var code = "var $$selectedVal = " + selectedVal + ";";
+    code = code + " " + (genAssignmentCode(value, assignment));
+    addHandler(el, 'change', code, null, true);
+  }
+
+  function genDefaultModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var type = el.attrsMap.type;
 
-        // Start tag:
-        var startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
-            advance(1);
-          }
-          continue
-        }
+    // warn if v-bind:value conflicts with v-model
+    // except for inputs with v-bind:type
+    {
+      var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+      var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+      if (value$1 && !typeBinding) {
+        var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+        warn$2(
+          binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+          'because the latter already expands to a value binding internally'
+        );
       }
+    }
 
-      var text = (void 0), rest = (void 0), next = (void 0);
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (
-          !endTag.test(rest) &&
-          !startTagOpen.test(rest) &&
-          !comment.test(rest) &&
-          !conditionalComment.test(rest)
-        ) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) { break }
-          textEnd += next;
-          rest = html.slice(textEnd);
-        }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
-      }
+    var ref = modifiers || {};
+    var lazy = ref.lazy;
+    var number = ref.number;
+    var trim = ref.trim;
+    var needCompositionGuard = !lazy && type !== 'range';
+    var event = lazy
+      ? 'change'
+      : type === 'range'
+        ? RANGE_TOKEN
+        : 'input';
 
-      if (textEnd < 0) {
-        text = html;
-        html = '';
-      }
+    var valueExpression = '$event.target.value';
+    if (trim) {
+      valueExpression = "$event.target.value.trim()";
+    }
+    if (number) {
+      valueExpression = "_n(" + valueExpression + ")";
+    }
 
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      var endTagLength = 0;
-      var stackedTag = lastTag.toLowerCase();
-      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text
-            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
-            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return ''
-      });
-      index += html.length - rest$1.length;
-      html = rest$1;
-      parseEndTag(stackedTag, index - endTagLength, index);
+    var code = genAssignmentCode(value, valueExpression);
+    if (needCompositionGuard) {
+      code = "if($event.target.composing)return;" + code;
     }
 
-    if (html === last) {
-      options.chars && options.chars(html);
-      if ("development" !== 'production' && !stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
-      }
-      break
+    addProp(el, 'value', ("(" + value + ")"));
+    addHandler(el, event, code, null, true);
+    if (trim || number) {
+      addHandler(el, 'blur', '$forceUpdate()');
     }
   }
 
-  // Clean up any remaining tags
-  parseEndTag();
+  /*  */
 
-  function advance (n) {
-    index += n;
-    html = html.substring(n);
+  function text (el, dir) {
+    if (dir.value) {
+      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+    }
   }
 
-  function parseStartTag () {
-    var start = html.match(startTagOpen);
-    if (start) {
-      var match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match
-      }
+  /*  */
+
+  function html (el, dir) {
+    if (dir.value) {
+      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
     }
   }
 
-  function handleStartTag (match) {
-    var tagName = match.tagName;
-    var unarySlash = match.unarySlash;
+  var directives$1 = {
+    model: model$2,
+    text: text,
+    html: html
+  };
 
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
-      }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
-      }
-    }
+  /*  */
+
+  var baseOptions = {
+    expectHTML: true,
+    modules: modules$1,
+    directives: directives$1,
+    isPreTag: isPreTag,
+    isUnaryTag: isUnaryTag,
+    mustUseProp: mustUseProp,
+    canBeLeftOpenTag: canBeLeftOpenTag,
+    isReservedTag: isReservedTag,
+    getTagNamespace: getTagNamespace,
+    staticKeys: genStaticKeys(modules$1)
+  };
 
-    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+  /*  */
+
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
+
+  // KeyboardEvent.keyCode aliases
+  var keyCodes = {
+    esc: 27,
+    tab: 9,
+    enter: 13,
+    space: 32,
+    up: 38,
+    left: 37,
+    right: 39,
+    down: 40,
+    'delete': [8, 46]
+  };
 
-    var l = match.attrs.length;
-    var attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
-      var value = args[3] || args[4] || args[5] || '';
-      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-        ? options.shouldDecodeNewlinesForHref
-        : options.shouldDecodeNewlines;
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, shouldDecodeNewlines)
-      };
-    }
+  // KeyboardEvent.key aliases
+  var keyNames = {
+    // #7880: IE11 and Edge use `Esc` for Escape key name.
+    esc: ['Esc', 'Escape'],
+    tab: 'Tab',
+    enter: 'Enter',
+    space: ' ',
+    // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+    up: ['Up', 'ArrowUp'],
+    left: ['Left', 'ArrowLeft'],
+    right: ['Right', 'ArrowRight'],
+    down: ['Down', 'ArrowDown'],
+    'delete': ['Backspace', 'Delete']
+  };
 
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
+  // #4868: modifiers that prevent the execution of the listener
+  // need to explicitly return null so that we can determine whether to remove
+  // the listener for .once
+  var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+  var modifierCode = {
+    stop: '$event.stopPropagation();',
+    prevent: '$event.preventDefault();',
+    self: genGuard("$event.target !== $event.currentTarget"),
+    ctrl: genGuard("!$event.ctrlKey"),
+    shift: genGuard("!$event.shiftKey"),
+    alt: genGuard("!$event.altKey"),
+    meta: genGuard("!$event.metaKey"),
+    left: genGuard("'button' in $event && $event.button !== 0"),
+    middle: genGuard("'button' in $event && $event.button !== 1"),
+    right: genGuard("'button' in $event && $event.button !== 2")
+  };
 
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
+  function genHandlers (
+    events,
+    isNative
+  ) {
+    var res = isNative ? 'nativeOn:{' : 'on:{';
+    for (var name in events) {
+      res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
     }
+    return res.slice(0, -1) + '}'
   }
 
-  function parseEndTag (tagName, start, end) {
-    var pos, lowerCasedTagName;
-    if (start == null) { start = index; }
-    if (end == null) { end = index; }
+  function genHandler (
+    name,
+    handler
+  ) {
+    if (!handler) {
+      return 'function(){}'
+    }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
+    if (Array.isArray(handler)) {
+      return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
     }
 
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break
-        }
+    var isMethodPath = simplePathRE.test(handler.value);
+    var isFunctionExpression = fnExpRE.test(handler.value);
+
+    if (!handler.modifiers) {
+      if (isMethodPath || isFunctionExpression) {
+        return handler.value
       }
+      return ("function($event){" + (handler.value) + "}") // inline statement
     } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
-    }
-
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (var i = stack.length - 1; i >= pos; i--) {
-        if ("development" !== 'production' &&
-          (i > pos || !tagName) &&
-          options.warn
-        ) {
-          options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+      var code = '';
+      var genModifierCode = '';
+      var keys = [];
+      for (var key in handler.modifiers) {
+        if (modifierCode[key]) {
+          genModifierCode += modifierCode[key];
+          // left/right
+          if (keyCodes[key]) {
+            keys.push(key);
+          }
+        } else if (key === 'exact') {
+          var modifiers = (handler.modifiers);
+          genModifierCode += genGuard(
+            ['ctrl', 'shift', 'alt', 'meta']
+              .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+              .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+              .join('||')
           );
+        } else {
+          keys.push(key);
         }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
-        }
-      }
-
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
       }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
+      if (keys.length) {
+        code += genKeyFilter(keys);
       }
-      if (options.end) {
-        options.end(tagName, start, end);
+      // Make sure modifiers like prevent and stop get executed after key filtering
+      if (genModifierCode) {
+        code += genModifierCode;
       }
+      var handlerCode = isMethodPath
+        ? ("return " + (handler.value) + "($event)")
+        : isFunctionExpression
+          ? ("return (" + (handler.value) + ")($event)")
+          : handler.value;
+      return ("function($event){" + code + handlerCode + "}")
     }
   }
-}
-
-/*  */
 
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-      "? " + baseValueExpression + ".trim()" +
-      ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
+  function genKeyFilter (keys) {
+    return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
   }
-  var assignment = genAssignmentCode(value, valueExpression);
 
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-  };
-}
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var res = parseModel(value);
-  if (res.key === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
-  }
-}
-
-/**
- * Parse a v-model expression into a base path and a final key segment.
- * Handles both dot-path and possible square brackets.
- *
- * Possible cases:
- *
- * - test
- * - test[key]
- * - test[test1[key]]
- * - test["a"][key]
- * - xxx.test[a[a].test1[key]]
- * - test.xxx.a["asa"][test1[key]]
- *
- */
-
-var len;
-var str;
-var chr;
-var index;
-var expressionPos;
-var expressionEndPos;
-
-
-
-function parseModel (val) {
-  // Fix https://github.com/vuejs/vue/pull/7730
-  // allow v-model="obj.val " (trailing whitespace)
-  val = val.trim();
-  len = val.length;
-
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    index = val.lastIndexOf('.');
-    if (index > -1) {
-      return {
-        exp: val.slice(0, index),
-        key: '"' + val.slice(index + 1) + '"'
-      }
-    } else {
-      return {
-        exp: val,
-        key: null
-      }
+  function genFilterCode (key) {
+    var keyVal = parseInt(key, 10);
+    if (keyVal) {
+      return ("$event.keyCode!==" + keyVal)
     }
+    var keyCode = keyCodes[key];
+    var keyName = keyNames[key];
+    return (
+      "_k($event.keyCode," +
+      (JSON.stringify(key)) + "," +
+      (JSON.stringify(keyCode)) + "," +
+      "$event.key," +
+      "" + (JSON.stringify(keyName)) +
+      ")"
+    )
   }
 
-  str = val;
-  index = expressionPos = expressionEndPos = 0;
-
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
-
-  return {
-    exp: val.slice(0, expressionPos),
-    key: val.slice(expressionPos + 1, expressionEndPos)
-  }
-}
+  /*  */
 
-function next () {
-  return str.charCodeAt(++index)
-}
-
-function eof () {
-  return index >= len
-}
-
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index;
-      break
+  function on (el, dir) {
+    if (dir.modifiers) {
+      warn("v-on without argument does not support modifiers.");
     }
+    el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
   }
-}
 
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
+  /*  */
+
+  function bind$1 (el, dir) {
+    el.wrapData = function (code) {
+      return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+    };
   }
-}
-
-/*  */
 
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
-var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
-var stripParensRE = /^\(|\)$/g;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$1;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
-
-
-function createASTElement (
-  tag,
-  attrs,
-  parent
-) {
-  return {
-    type: 1,
-    tag: tag,
-    attrsList: attrs,
-    attrsMap: makeAttrsMap(attrs),
-    parent: parent,
-    children: []
-  }
-}
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$1 = options.warn || baseWarn;
+  /*  */
 
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
-
-  var stack = [];
-  var preserveWhitespace = options.preserveWhitespace !== false;
-  var root;
-  var currentParent;
-  var inVPre = false;
-  var inPre = false;
-  var warned = false;
-
-  function warnOnce (msg) {
-    if (!warned) {
-      warned = true;
-      warn$1(msg);
-    }
-  }
-
-  function closeElement (element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-    // apply post-transforms
-    for (var i = 0; i < postTransforms.length; i++) {
-      postTransforms[i](element, options);
-    }
-  }
-
-  parseHTML(template, {
-    warn: warn$1,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-    shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
-
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
+  var baseDirectives = {
+    on: on,
+    bind: bind$1,
+    cloak: noop
+  };
 
-      var element = createASTElement(tag, attrs, currentParent);
-      if (ns) {
-        element.ns = ns;
-      }
+  /*  */
 
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        "development" !== 'production' && warn$1(
-          'Templates should only be responsible for mapping the state to the ' +
-          'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
-        );
-      }
 
-      // apply pre-transforms
-      for (var i = 0; i < preTransforms.length; i++) {
-        element = preTransforms[i](element, options) || element;
-      }
 
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
-      }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else if (!element.processed) {
-        // structural directives
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
 
-      function checkRootConstraints (el) {
-        {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
-      }
 
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
-      }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
-      } else {
-        closeElement(element);
-      }
-    },
+  var CodegenState = function CodegenState (options) {
+    this.options = options;
+    this.warn = options.warn || baseWarn;
+    this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+    this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+    this.directives = extend(extend({}, baseDirectives), options.directives);
+    var isReservedTag = options.isReservedTag || no;
+    this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+    this.onceId = 0;
+    this.staticRenderFns = [];
+    this.pre = false;
+  };
 
-    end: function end () {
-      // remove trailing whitespace
-      var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      closeElement(element);
-    },
 
-    chars: function chars (text) {
-      if (!currentParent) {
-        {
-          if (text === template) {
-            warnOnce(
-              'Component template requires a root element, rather than just text.'
-            );
-          } else if ((text = text.trim())) {
-            warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
-            );
-          }
+
+  function generate (
+    ast,
+    options
+  ) {
+    var state = new CodegenState(options);
+    var code = ast ? genElement(ast, state) : '_c("div")';
+    return {
+      render: ("with(this){return " + code + "}"),
+      staticRenderFns: state.staticRenderFns
+    }
+  }
+
+  function genElement (el, state) {
+    if (el.parent) {
+      el.pre = el.pre || el.parent.pre;
+    }
+
+    if (el.staticRoot && !el.staticProcessed) {
+      return genStatic(el, state)
+    } else if (el.once && !el.onceProcessed) {
+      return genOnce(el, state)
+    } else if (el.for && !el.forProcessed) {
+      return genFor(el, state)
+    } else if (el.if && !el.ifProcessed) {
+      return genIf(el, state)
+    } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
+      return genChildren(el, state) || 'void 0'
+    } else if (el.tag === 'slot') {
+      return genSlot(el, state)
+    } else {
+      // component or element
+      var code;
+      if (el.component) {
+        code = genComponent(el.component, el, state);
+      } else {
+        var data;
+        if (!el.plain || (el.pre && state.maybeComponent(el))) {
+          data = genData$2(el, state);
         }
-        return
+
+        var children = el.inlineTemplate ? null : genChildren(el, state, true);
+        code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
       }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE &&
-        currentParent.tag === 'textarea' &&
-        currentParent.attrsMap.placeholder === text
-      ) {
-        return
+      // module transforms
+      for (var i = 0; i < state.transforms.length; i++) {
+        code = state.transforms[i](el, code);
       }
-      var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        var res;
-        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression: res.expression,
-            tokens: res.tokens,
-            text: text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text: text
-          });
+      return code
+    }
+  }
+
+  // hoist static sub-trees out
+  function genStatic (el, state) {
+    el.staticProcessed = true;
+    // Some elements (templates) need to behave differently inside of a v-pre
+    // node.  All pre nodes are static roots, so we can use this as a location to
+    // wrap a state change and reset it upon exiting the pre node.
+    var originalPreState = state.pre;
+    if (el.pre) {
+      state.pre = el.pre;
+    }
+    state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+    state.pre = originalPreState;
+    return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  }
+
+  // v-once
+  function genOnce (el, state) {
+    el.onceProcessed = true;
+    if (el.if && !el.ifProcessed) {
+      return genIf(el, state)
+    } else if (el.staticInFor) {
+      var key = '';
+      var parent = el.parent;
+      while (parent) {
+        if (parent.for) {
+          key = parent.key;
+          break
         }
+        parent = parent.parent;
       }
-    },
-    comment: function comment (text) {
-      currentParent.children.push({
-        type: 3,
-        text: text,
-        isComment: true
-      });
-    }
-  });
-  return root
-}
-
-function processPre (el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
+      if (!key) {
+        state.warn(
+          "v-once can only be used inside v-for that is keyed. "
+        );
+        return genElement(el, state)
+      }
+      return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+    } else {
+      return genStatic(el, state)
     }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
   }
-}
 
-function processElement (element, options) {
-  processKey(element);
-
-  // determine whether this is a plain element after
-  // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
-
-  processRef(element);
-  processSlot(element);
-  processComponent(element);
-  for (var i = 0; i < transforms.length; i++) {
-    element = transforms[i](element, options) || element;
+  function genIf (
+    el,
+    state,
+    altGen,
+    altEmpty
+  ) {
+    el.ifProcessed = true; // avoid recursion
+    return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
   }
-  processAttrs(element);
-}
 
-function processKey (el) {
-  var exp = getBindingAttr(el, 'key');
-  if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+  function genIfConditions (
+    conditions,
+    state,
+    altGen,
+    altEmpty
+  ) {
+    if (!conditions.length) {
+      return altEmpty || '_e()'
+    }
+
+    var condition = conditions.shift();
+    if (condition.exp) {
+      return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+    } else {
+      return ("" + (genTernaryExp(condition.block)))
     }
-    el.key = exp;
-  }
-}
 
-function processRef (el) {
-  var ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
+    // v-if with v-once should generate code like (a)?_m(0):_m(1)
+    function genTernaryExp (el) {
+      return altGen
+        ? altGen(el, state)
+        : el.once
+          ? genOnce(el, state)
+          : genElement(el, state)
+    }
   }
-}
 
-function processFor (el) {
-  var exp;
-  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var res = parseFor(exp);
-    if (res) {
-      extend(el, res);
-    } else {
-      warn$1(
-        ("Invalid v-for expression: " + exp)
+  function genFor (
+    el,
+    state,
+    altGen,
+    altHelper
+  ) {
+    var exp = el.for;
+    var alias = el.alias;
+    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+    if (state.maybeComponent(el) &&
+      el.tag !== 'slot' &&
+      el.tag !== 'template' &&
+      !el.key
+    ) {
+      state.warn(
+        "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+        "v-for should have explicit keys. " +
+        "See https://vuejs.org/guide/list.html#key for more info.",
+        true /* tip */
       );
     }
+
+    el.forProcessed = true; // avoid recursion
+    return (altHelper || '_l') + "((" + exp + ")," +
+      "function(" + alias + iterator1 + iterator2 + "){" +
+        "return " + ((altGen || genElement)(el, state)) +
+      '})'
   }
-}
 
+  function genData$2 (el, state) {
+    var data = '{';
 
+    // directives first.
+    // directives may mutate the el's other properties before they are generated.
+    var dirs = genDirectives(el, state);
+    if (dirs) { data += dirs + ','; }
 
-function parseFor (exp) {
-  var inMatch = exp.match(forAliasRE);
-  if (!inMatch) { return }
-  var res = {};
-  res.for = inMatch[2].trim();
-  var alias = inMatch[1].trim().replace(stripParensRE, '');
-  var iteratorMatch = alias.match(forIteratorRE);
-  if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
-    res.iterator1 = iteratorMatch[1].trim();
-    if (iteratorMatch[2]) {
-      res.iterator2 = iteratorMatch[2].trim();
+    // key
+    if (el.key) {
+      data += "key:" + (el.key) + ",";
     }
-  } else {
-    res.alias = alias;
-  }
-  return res
-}
-
-function processIf (el) {
-  var exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
+    // ref
+    if (el.ref) {
+      data += "ref:" + (el.ref) + ",";
     }
-    var elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
+    if (el.refInFor) {
+      data += "refInFor:true,";
     }
-  }
-}
-
-function processIfConditions (el, parent) {
-  var prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else {
-    warn$1(
-      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
-    );
-  }
-}
-
-function findPrevElement (children) {
-  var i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i]
-    } else {
-      if ("development" !== 'production' && children[i].text !== ' ') {
-        warn$1(
-          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
-        );
+    // pre
+    if (el.pre) {
+      data += "pre:true,";
+    }
+    // record original tag name for components using "is" attribute
+    if (el.component) {
+      data += "tag:\"" + (el.tag) + "\",";
+    }
+    // module data generation functions
+    for (var i = 0; i < state.dataGenFns.length; i++) {
+      data += state.dataGenFns[i](el);
+    }
+    // attributes
+    if (el.attrs) {
+      data += "attrs:{" + (genProps(el.attrs)) + "},";
+    }
+    // DOM props
+    if (el.props) {
+      data += "domProps:{" + (genProps(el.props)) + "},";
+    }
+    // event handlers
+    if (el.events) {
+      data += (genHandlers(el.events, false)) + ",";
+    }
+    if (el.nativeEvents) {
+      data += (genHandlers(el.nativeEvents, true)) + ",";
+    }
+    // slot target
+    // only for non-scoped slots
+    if (el.slotTarget && !el.slotScope) {
+      data += "slot:" + (el.slotTarget) + ",";
+    }
+    // scoped slots
+    if (el.scopedSlots) {
+      data += (genScopedSlots(el.scopedSlots, state)) + ",";
+    }
+    // component v-model
+    if (el.model) {
+      data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+    }
+    // inline-template
+    if (el.inlineTemplate) {
+      var inlineTemplate = genInlineTemplate(el, state);
+      if (inlineTemplate) {
+        data += inlineTemplate + ",";
+      }
+    }
+    data = data.replace(/,$/, '') + '}';
+    // v-bind data wrap
+    if (el.wrapData) {
+      data = el.wrapData(data);
+    }
+    // v-on data wrap
+    if (el.wrapListeners) {
+      data = el.wrapListeners(data);
+    }
+    return data
+  }
+
+  function genDirectives (el, state) {
+    var dirs = el.directives;
+    if (!dirs) { return }
+    var res = 'directives:[';
+    var hasRuntime = false;
+    var i, l, dir, needRuntime;
+    for (i = 0, l = dirs.length; i < l; i++) {
+      dir = dirs[i];
+      needRuntime = true;
+      var gen = state.directives[dir.name];
+      if (gen) {
+        // compile-time directive that manipulates AST.
+        // returns true if it also needs a runtime counterpart.
+        needRuntime = !!gen(el, dir, state.warn);
+      }
+      if (needRuntime) {
+        hasRuntime = true;
+        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
       }
-      children.pop();
+    }
+    if (hasRuntime) {
+      return res.slice(0, -1) + ']'
     }
   }
-}
 
-function addIfCondition (el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
+  function genInlineTemplate (el, state) {
+    var ast = el.children[0];
+    if (el.children.length !== 1 || ast.type !== 1) {
+      state.warn('Inline-template components must have exactly one child element.');
+    }
+    if (ast.type === 1) {
+      var inlineRenderFns = generate(ast, state.options);
+      return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+    }
   }
-  el.ifConditions.push(condition);
-}
 
-function processOnce (el) {
-  var once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
+  function genScopedSlots (
+    slots,
+    state
+  ) {
+    return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+        return genScopedSlot(key, slots[key], state)
+      }).join(',')) + "])")
   }
-}
 
-function processSlot (el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if ("development" !== 'production' && el.key) {
-      warn$1(
-        "`key` does not work on <slot> because slots are abstract outlets " +
-        "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
-      );
+  function genScopedSlot (
+    key,
+    el,
+    state
+  ) {
+    if (el.for && !el.forProcessed) {
+      return genForScopedSlot(key, el, state)
+    }
+    var fn = "function(" + (String(el.slotScope)) + "){" +
+      "return " + (el.tag === 'template'
+        ? el.if
+          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+          : genChildren(el, state) || 'undefined'
+        : genElement(el, state)) + "}";
+    return ("{key:" + key + ",fn:" + fn + "}")
+  }
+
+  function genForScopedSlot (
+    key,
+    el,
+    state
+  ) {
+    var exp = el.for;
+    var alias = el.alias;
+    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+    el.forProcessed = true; // avoid recursion
+    return "_l((" + exp + ")," +
+      "function(" + alias + iterator1 + iterator2 + "){" +
+        "return " + (genScopedSlot(key, el, state)) +
+      '})'
+  }
+
+  function genChildren (
+    el,
+    state,
+    checkSkip,
+    altGenElement,
+    altGenNode
+  ) {
+    var children = el.children;
+    if (children.length) {
+      var el$1 = children[0];
+      // optimize single v-for
+      if (children.length === 1 &&
+        el$1.for &&
+        el$1.tag !== 'template' &&
+        el$1.tag !== 'slot'
+      ) {
+        // because el may be a functional component and return an Array instead of a single root.
+        // In this case, just a simple normalization is needed
+        var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+        return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
+      }
+      var normalizationType$1 = checkSkip
+        ? getNormalizationType(children, state.maybeComponent)
+        : 0;
+      var gen = altGenNode || genNode;
+      return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
     }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if ("development" !== 'production' && slotScope) {
-        warn$1(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
+  }
+
+  // determine the normalization needed for the children array.
+  // 0: no normalization needed
+  // 1: simple normalization needed (possible 1-level deep nested array)
+  // 2: full normalization needed
+  function getNormalizationType (
+    children,
+    maybeComponent
+  ) {
+    var res = 0;
+    for (var i = 0; i < children.length; i++) {
+      var el = children[i];
+      if (el.type !== 1) {
+        continue
       }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if ("development" !== 'production' && el.attrsMap['v-for']) {
-        warn$1(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
+      if (needsNormalization(el) ||
+          (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+        res = 2;
+        break
       }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
+      if (maybeComponent(el) ||
+          (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+        res = 1;
       }
     }
+    return res
   }
-}
 
-function processComponent (el) {
-  var binding;
-  if ((binding = getBindingAttr(el, 'is'))) {
-    el.component = binding;
+  function needsNormalization (el) {
+    return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
   }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
-  }
-}
 
-function processAttrs (el) {
-  var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
-      }
-      if (bindRE.test(name)) { // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') { name = 'innerHTML'; }
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
-            );
-          }
-        }
-        if (isProp || (
-          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-        )) {
-          addProp(el, name, value);
-        } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) { // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$1);
-      } else { // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        var argMatch = name.match(argRE);
-        var arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
-        }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if ("development" !== 'production' && name === 'model') {
-          checkForAliasModel(el, value);
-        }
-      }
+  function genNode (node, state) {
+    if (node.type === 1) {
+      return genElement(node, state)
+    } else if (node.type === 3 && node.isComment) {
+      return genComment(node)
     } else {
-      // literal attribute
-      {
-        var res = parseText(value, delimiters);
-        if (res) {
-          warn$1(
-            name + "=\"" + value + "\": " +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
-          );
-        }
-      }
-      addAttr(el, name, JSON.stringify(value));
-      // #6887 firefox doesn't update muted state if set via attribute
-      // even immediately after element creation
-      if (!el.component &&
-          name === 'muted' &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
-      }
+      return genText(node)
     }
   }
-}
 
-function checkInFor (el) {
-  var parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true
-    }
-    parent = parent.parent;
+  function genText (text) {
+    return ("_v(" + (text.type === 2
+      ? text.expression // no need for () because already wrapped in _s()
+      : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
   }
-  return false
-}
 
-function parseModifiers (name) {
-  var match = name.match(modifierRE);
-  if (match) {
-    var ret = {};
-    match.forEach(function (m) { ret[m.slice(1)] = true; });
-    return ret
+  function genComment (comment) {
+    return ("_e(" + (JSON.stringify(comment.text)) + ")")
   }
-}
 
-function makeAttrsMap (attrs) {
-  var map = {};
-  for (var i = 0, l = attrs.length; i < l; i++) {
-    if (
-      "development" !== 'production' &&
-      map[attrs[i].name] && !isIE && !isEdge
-    ) {
-      warn$1('duplicate attribute: ' + attrs[i].name);
-    }
-    map[attrs[i].name] = attrs[i].value;
-  }
-  return map
-}
-
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
-
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
-}
-
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
-
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
-  }
-  return res
-}
-
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
+  function genSlot (el, state) {
+    var slotName = el.slotName || '"default"';
+    var children = genChildren(el, state);
+    var res = "_t(" + slotName + (children ? ("," + children) : '');
+    var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+    var bind$$1 = el.attrsMap['v-bind'];
+    if ((attrs || bind$$1) && !children) {
+      res += ",null";
     }
-    _el = _el.parent;
-  }
-}
-
-/*  */
-
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
-function preTransformNode (el, options) {
-  if (el.tag === 'input') {
-    var map = el.attrsMap;
-    if (!map['v-model']) {
-      return
+    if (attrs) {
+      res += "," + attrs;
     }
+    if (bind$$1) {
+      res += (attrs ? '' : ',null') + "," + bind$$1;
+    }
+    return res + ')'
+  }
 
-    var typeBinding;
-    if (map[':type'] || map['v-bind:type']) {
-      typeBinding = getBindingAttr(el, 'type');
-    }
-    if (!map.type && !typeBinding && map['v-bind']) {
-      typeBinding = "(" + (map['v-bind']) + ").type";
-    }
-
-    if (typeBinding) {
-      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
-      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
-      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-      // 1. checkbox
-      var branch0 = cloneASTElement(el);
-      // process for on the main node
-      processFor(branch0);
-      addRawAttr(branch0, 'type', 'checkbox');
-      processElement(branch0, options);
-      branch0.processed = true; // prevent it from double-processed
-      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
-      addIfCondition(branch0, {
-        exp: branch0.if,
-        block: branch0
-      });
-      // 2. add radio else-if condition
-      var branch1 = cloneASTElement(el);
-      getAndRemoveAttr(branch1, 'v-for', true);
-      addRawAttr(branch1, 'type', 'radio');
-      processElement(branch1, options);
-      addIfCondition(branch0, {
-        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
-        block: branch1
-      });
-      // 3. other
-      var branch2 = cloneASTElement(el);
-      getAndRemoveAttr(branch2, 'v-for', true);
-      addRawAttr(branch2, ':type', typeBinding);
-      processElement(branch2, options);
-      addIfCondition(branch0, {
-        exp: ifCondition,
-        block: branch2
-      });
+  // componentName is el.component, take it as argument to shun flow's pessimistic refinement
+  function genComponent (
+    componentName,
+    el,
+    state
+  ) {
+    var children = el.inlineTemplate ? null : genChildren(el, state, true);
+    return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+  }
 
-      if (hasElse) {
-        branch0.else = true;
-      } else if (elseIfCondition) {
-        branch0.elseif = elseIfCondition;
+  function genProps (props) {
+    var res = '';
+    for (var i = 0; i < props.length; i++) {
+      var prop = props[i];
+      /* istanbul ignore if */
+      {
+        res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
       }
-
-      return branch0
     }
+    return res.slice(0, -1)
   }
-}
 
-function cloneASTElement (el) {
-  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-}
+  // #3895, #4268
+  function transformSpecialNewlines (text) {
+    return text
+      .replace(/\u2028/g, '\\u2028')
+      .replace(/\u2029/g, '\\u2029')
+  }
 
-var model$1 = {
-  preTransformNode: preTransformNode
-}
+  /*  */
 
-var modules$1 = [
-  klass,
-  style,
-  model$1
-]
 
-/*  */
 
-var warn$2;
 
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
 
 
-function model$2 (
-  el,
-  dir,
-  _warn
-) {
-  warn$2 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
+  var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
-  {
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
+  // let the model AST transform translate v-model into appropriate
+  // props bindings
+  function applyModelTransform (el, state) {
+    if (el.directives) {
+      for (var i = 0; i < el.directives.length; i++) {
+        var dir = el.directives[i];
+        if (dir.name === 'model') {
+          state.directives.model(el, dir, state.warn);
+          // remove value for textarea as its converted to text
+          if (el.tag === 'textarea' && el.props) {
+            el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+          }
+          break
+        }
+      }
     }
   }
 
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else {
-    warn$2(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
+  function genAttrSegments (
+    attrs
+  ) {
+    return attrs.map(function (ref) {
+      var name = ref.name;
+      var value = ref.value;
+
+      return genAttrSegment(name, value);
+    })
   }
 
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-    "?_i(" + value + "," + valueBinding + ")>-1" + (
-      trueValueBinding === 'true'
-        ? (":(" + value + ")")
-        : (":_q(" + value + "," + trueValueBinding + ")")
-    )
-  );
-  addHandler(el, 'change',
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
-      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-
-  // warn if v-bind:value conflicts with v-model
-  // except for inputs with v-bind:type
-  {
-    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (value$1 && !typeBinding) {
-      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$2(
-        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
+  function genDOMPropSegments (
+    props,
+    attrs
+  ) {
+    var segments = [];
+    props.forEach(function (ref) {
+      var name = ref.name;
+      var value = ref.value;
+
+      name = propsToAttrMap[name] || name.toLowerCase();
+      if (isRenderableAttr(name) &&
+        !(attrs && attrs.some(function (a) { return a.name === name; }))
+      ) {
+        segments.push(genAttrSegment(name, value));
+      }
+    });
+    return segments
   }
 
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives$1 = {
-  model: model$2,
-  text: text,
-  html: html
-}
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
-
-// KeyboardEvent.keyCode aliases
-var keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// KeyboardEvent.key aliases
-var keyNames = {
-  // #7880: IE11 and Edge use `Esc` for Escape key name.
-  esc: ['Esc', 'Escape'],
-  tab: 'Tab',
-  enter: 'Enter',
-  space: ' ',
-  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
-  up: ['Up', 'ArrowUp'],
-  left: ['Left', 'ArrowLeft'],
-  right: ['Right', 'ArrowRight'],
-  down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
-
-var modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard("$event.target !== $event.currentTarget"),
-  ctrl: genGuard("!$event.ctrlKey"),
-  shift: genGuard("!$event.shiftKey"),
-  alt: genGuard("!$event.altKey"),
-  meta: genGuard("!$event.metaKey"),
-  left: genGuard("'button' in $event && $event.button !== 0"),
-  middle: genGuard("'button' in $event && $event.button !== 1"),
-  right: genGuard("'button' in $event && $event.button !== 2")
-};
-
-function genHandlers (
-  events,
-  isNative,
-  warn
-) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
-  for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
-  }
-  return res.slice(0, -1) + '}'
-}
-
-function genHandler (
-  name,
-  handler
-) {
-  if (!handler) {
-    return 'function(){}'
-  }
-
-  if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
-  }
-
-  var isMethodPath = simplePathRE.test(handler.value);
-  var isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    if (isMethodPath || isFunctionExpression) {
-      return handler.value
-    }
-    /* istanbul ignore if */
-    return ("function($event){" + (handler.value) + "}") // inline statement
-  } else {
-    var code = '';
-    var genModifierCode = '';
-    var keys = [];
-    for (var key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else if (key === 'exact') {
-        var modifiers = (handler.modifiers);
-        genModifierCode += genGuard(
-          ['ctrl', 'shift', 'alt', 'meta']
-            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
-            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
-            .join('||')
-        );
-      } else {
-        keys.push(key);
+  function genAttrSegment (name, value) {
+    if (plainStringRE.test(value)) {
+      // force double quote
+      value = value.replace(/^'|'$/g, '"');
+      // force enumerated attr to "true"
+      if (isEnumeratedAttr(name) && value !== "\"false\"") {
+        value = "\"true\"";
+      }
+      return {
+        type: RAW,
+        value: isBooleanAttr(name)
+          ? (" " + name + "=\"" + name + "\"")
+          : value === '""'
+            ? (" " + name)
+            : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
+      }
+    } else {
+      return {
+        type: EXPRESSION,
+        value: ("_ssrAttr(" + (JSON.stringify(name)) + "," + value + ")")
       }
     }
-    if (keys.length) {
-      code += genKeyFilter(keys);
+  }
+
+  function genClassSegments (
+    staticClass,
+    classBinding
+  ) {
+    if (staticClass && !classBinding) {
+      return [{ type: RAW, value: (" class=\"" + (JSON.parse(staticClass)) + "\"") }]
+    } else {
+      return [{
+        type: EXPRESSION,
+        value: ("_ssrClass(" + (staticClass || 'null') + "," + (classBinding || 'null') + ")")
+      }]
     }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
+  }
+
+  function genStyleSegments (
+    staticStyle,
+    parsedStaticStyle,
+    styleBinding,
+    vShowExpression
+  ) {
+    if (staticStyle && !styleBinding && !vShowExpression) {
+      return [{ type: RAW, value: (" style=" + (JSON.stringify(staticStyle))) }]
+    } else {
+      return [{
+        type: EXPRESSION,
+        value: ("_ssrStyle(" + (parsedStaticStyle || 'null') + "," + (styleBinding || 'null') + ", " + (vShowExpression
+            ? ("{ display: (" + vShowExpression + ") ? '' : 'none' }")
+            : 'null') + ")")
+      }]
     }
-    var handlerCode = isMethodPath
-      ? ("return " + (handler.value) + "($event)")
-      : isFunctionExpression
-        ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
-    /* istanbul ignore if */
-    return ("function($event){" + code + handlerCode + "}")
   }
-}
 
-function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
-}
+  /*  */
 
-function genFilterCode (key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return ("$event.keyCode!==" + keyVal)
-  }
-  var keyCode = keyCodes[key];
-  var keyName = keyNames[key];
-  return (
-    "_k($event.keyCode," +
-    (JSON.stringify(key)) + "," +
-    (JSON.stringify(keyCode)) + "," +
-    "$event.key," +
-    "" + (JSON.stringify(keyName)) +
-    ")"
-  )
-}
+  // optimizability constants
+  var optimizability = {
+    FALSE: 0,    // whole sub tree un-optimizable
+    FULL: 1,     // whole sub tree optimizable
+    SELF: 2,     // self optimizable but has some un-optimizable children
+    CHILDREN: 3, // self un-optimizable but have fully optimizable children
+    PARTIAL: 4   // self un-optimizable with some un-optimizable children
+  };
 
-/*  */
+  var isPlatformReservedTag;
 
-function on (el, dir) {
-  if ("development" !== 'production' && dir.modifiers) {
-    warn("v-on without argument does not support modifiers.");
+  function optimize (root, options) {
+    if (!root) { return }
+    isPlatformReservedTag = options.isReservedTag || no;
+    walk(root, true);
   }
-  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
-}
 
-/*  */
-
-function bind$1 (el, dir) {
-  el.wrapData = function (code) {
-    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on: on,
-  bind: bind$1,
-  cloak: noop
-}
-
-/*  */
-
-var CodegenState = function CodegenState (options) {
-  this.options = options;
-  this.warn = options.warn || baseWarn;
-  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  this.directives = extend(extend({}, baseDirectives), options.directives);
-  var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
-  this.onceId = 0;
-  this.staticRenderFns = [];
-};
-
-
-
-function generate (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genElement (el, state) {
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state)
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state)
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
-    return genChildren(el, state) || 'void 0'
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state)
-  } else {
-    // component or element
-    var code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
-    } else {
-      var data = el.plain ? undefined : genData$2(el, state);
-
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
-    }
-    // module transforms
-    for (var i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code
-  }
-}
-
-// hoist static sub-trees out
-function genStatic (el, state) {
-  el.staticProcessed = true;
-  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
-}
-
-// v-once
-function genOnce (el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.staticInFor) {
-    var key = '';
-    var parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break
-      }
-      parent = parent.parent;
+  function walk (node, isRoot) {
+    if (isUnOptimizableTree(node)) {
+      node.ssrOptimizability = optimizability.FALSE;
+      return
     }
-    if (!key) {
-      "development" !== 'production' && state.warn(
-        "v-once can only be used inside v-for that is keyed. "
-      );
-      return genElement(el, state)
+    // root node or nodes with custom directives should always be a VNode
+    var selfUnoptimizable = isRoot || hasCustomDirective(node);
+    var check = function (child) {
+      if (child.ssrOptimizability !== optimizability.FULL) {
+        node.ssrOptimizability = selfUnoptimizable
+          ? optimizability.PARTIAL
+          : optimizability.SELF;
+      }
+    };
+    if (selfUnoptimizable) {
+      node.ssrOptimizability = optimizability.CHILDREN;
+    }
+    if (node.type === 1) {
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        var child = node.children[i];
+        walk(child);
+        check(child);
+      }
+      if (node.ifConditions) {
+        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+          var block = node.ifConditions[i$1].block;
+          walk(block, isRoot);
+          check(block);
+        }
+      }
+      if (node.ssrOptimizability == null ||
+        (!isRoot && (node.attrsMap['v-html'] || node.attrsMap['v-text']))
+      ) {
+        node.ssrOptimizability = optimizability.FULL;
+      } else {
+        node.children = optimizeSiblings(node);
+      }
+    } else {
+      node.ssrOptimizability = optimizability.FULL;
     }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
-  } else {
-    return genStatic(el, state)
-  }
-}
-
-function genIf (
-  el,
-  state,
-  altGen,
-  altEmpty
-) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-}
-
-function genIfConditions (
-  conditions,
-  state,
-  altGen,
-  altEmpty
-) {
-  if (!conditions.length) {
-    return altEmpty || '_e()'
-  }
-
-  var condition = conditions.shift();
-  if (condition.exp) {
-    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
-  } else {
-    return ("" + (genTernaryExp(condition.block)))
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp (el) {
-    return altGen
-      ? altGen(el, state)
-      : el.once
-        ? genOnce(el, state)
-        : genElement(el, state)
-  }
-}
-
-function genFor (
-  el,
-  state,
-  altGen,
-  altHelper
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-
-  if ("development" !== 'production' &&
-    state.maybeComponent(el) &&
-    el.tag !== 'slot' &&
-    el.tag !== 'template' &&
-    !el.key
-  ) {
-    state.warn(
-      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
-      "v-for should have explicit keys. " +
-      "See https://vuejs.org/guide/list.html#key for more info.",
-      true /* tip */
-    );
   }
 
-  el.forProcessed = true; // avoid recursion
-  return (altHelper || '_l') + "((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + ((altGen || genElement)(el, state)) +
-    '})'
-}
-
-function genData$2 (el, state) {
-  var data = '{';
+  function optimizeSiblings (el) {
+    var children = el.children;
+    var optimizedChildren = [];
+
+    var currentOptimizableGroup = [];
+    var pushGroup = function () {
+      if (currentOptimizableGroup.length) {
+        optimizedChildren.push({
+          type: 1,
+          parent: el,
+          tag: 'template',
+          attrsList: [],
+          attrsMap: {},
+          children: currentOptimizableGroup,
+          ssrOptimizability: optimizability.FULL
+        });
+      }
+      currentOptimizableGroup = [];
+    };
 
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el, state);
-  if (dirs) { data += dirs + ','; }
-
-  // key
-  if (el.key) {
-    data += "key:" + (el.key) + ",";
-  }
-  // ref
-  if (el.ref) {
-    data += "ref:" + (el.ref) + ",";
-  }
-  if (el.refInFor) {
-    data += "refInFor:true,";
-  }
-  // pre
-  if (el.pre) {
-    data += "pre:true,";
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += "tag:\"" + (el.tag) + "\",";
-  }
-  // module data generation functions
-  for (var i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
-  }
-  // DOM props
-  if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
-  }
-  // event handlers
-  if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
-  }
-  if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
-  }
-  // slot target
-  // only for non-scoped slots
-  if (el.slotTarget && !el.slotScope) {
-    data += "slot:" + (el.slotTarget) + ",";
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
-  }
-  // component v-model
-  if (el.model) {
-    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += inlineTemplate + ",";
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data
-}
-
-function genDirectives (el, state) {
-  var dirs = el.directives;
-  if (!dirs) { return }
-  var res = 'directives:[';
-  var hasRuntime = false;
-  var i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    var gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']'
-  }
-}
-
-function genInlineTemplate (el, state) {
-  var ast = el.children[0];
-  if ("development" !== 'production' && (
-    el.children.length !== 1 || ast.type !== 1
-  )) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, state.options);
-    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
-  }
-}
-
-function genScopedSlots (
-  slots,
-  state
-) {
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
-}
-
-function genScopedSlot (
-  key,
-  el,
-  state
-) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
-  }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
-    "return " + (el.tag === 'template'
-      ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
-      : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
-}
-
-function genChildren (
-  el,
-  state,
-  checkSkip,
-  altGenElement,
-  altGenNode
-) {
-  var children = el.children;
-  if (children.length) {
-    var el$1 = children[0];
-    // optimize single v-for
-    if (children.length === 1 &&
-      el$1.for &&
-      el$1.tag !== 'template' &&
-      el$1.tag !== 'slot'
-    ) {
-      return (altGenElement || genElement)(el$1, state)
-    }
-    var normalizationType = checkSkip
-      ? getNormalizationType(children, state.maybeComponent)
-      : 0;
-    var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType (
-  children,
-  maybeComponent
-) {
-  var res = 0;
-  for (var i = 0; i < children.length; i++) {
-    var el = children[i];
-    if (el.type !== 1) {
-      continue
-    }
-    if (needsNormalization(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
-      res = 2;
-      break
-    }
-    if (maybeComponent(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
-      res = 1;
-    }
-  }
-  return res
-}
-
-function needsNormalization (el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-}
-
-function genNode (node, state) {
-  if (node.type === 1) {
-    return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
-    return genComment(node)
-  } else {
-    return genText(node)
-  }
-}
-
-function genText (text) {
-  return ("_v(" + (text.type === 2
-    ? text.expression // no need for () because already wrapped in _s()
-    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
-}
-
-function genComment (comment) {
-  return ("_e(" + (JSON.stringify(comment.text)) + ")")
-}
-
-function genSlot (el, state) {
-  var slotName = el.slotName || '"default"';
-  var children = genChildren(el, state);
-  var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
-  var bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += ",null";
-  }
-  if (attrs) {
-    res += "," + attrs;
-  }
-  if (bind$$1) {
-    res += (attrs ? '' : ',null') + "," + bind$$1;
-  }
-  return res + ')'
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (
-  componentName,
-  el,
-  state
-) {
-  var children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
-}
-
-function genProps (props) {
-  var res = '';
-  for (var i = 0; i < props.length; i++) {
-    var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
-    }
-  }
-  return res.slice(0, -1)
-}
-
-// #3895, #4268
-function transformSpecialNewlines (text) {
-  return text
-    .replace(/\u2028/g, '\\u2028')
-    .replace(/\u2029/g, '\\u2029')
-}
-
-/*  */
-
-var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
-
-// let the model AST transform translate v-model into appropriate
-// props bindings
-function applyModelTransform (el, state) {
-  if (el.directives) {
-    for (var i = 0; i < el.directives.length; i++) {
-      var dir = el.directives[i];
-      if (dir.name === 'model') {
-        state.directives.model(el, dir, state.warn);
-        // remove value for textarea as its converted to text
-        if (el.tag === 'textarea' && el.props) {
-          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
-        }
-        break
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (c.ssrOptimizability === optimizability.FULL) {
+        currentOptimizableGroup.push(c);
+      } else {
+        // wrap fully-optimizable adjacent siblings inside a template tag
+        // so that they can be optimized into a single ssrNode by codegen
+        pushGroup();
+        optimizedChildren.push(c);
       }
     }
+    pushGroup();
+    return optimizedChildren
+  }
+
+  function isUnOptimizableTree (node) {
+    if (node.type === 2 || node.type === 3) { // text or expression
+      return false
+    }
+    return (
+      isBuiltInTag(node.tag) || // built-in (slot, component)
+      !isPlatformReservedTag(node.tag) || // custom component
+      !!node.component || // "is" component
+      isSelectWithModel(node) // <select v-model> requires runtime inspection
+    )
   }
-}
 
-function genAttrSegments (
-  attrs
-) {
-  return attrs.map(function (ref) {
-    var name = ref.name;
-    var value = ref.value;
+  var isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
 
-    return genAttrSegment(name, value);
-  })
-}
+  function hasCustomDirective (node) {
+    return (
+      node.type === 1 &&
+      node.directives &&
+      node.directives.some(function (d) { return !isBuiltInDir(d.name); })
+    )
+  }
 
-function genDOMPropSegments (
-  props,
-  attrs
-) {
-  var segments = [];
-  props.forEach(function (ref) {
-    var name = ref.name;
-    var value = ref.value;
+  // <select v-model> cannot be optimized because it requires a runtime check
+  // to determine proper selected option
+  function isSelectWithModel (node) {
+    return (
+      node.type === 1 &&
+      node.tag === 'select' &&
+      node.directives != null &&
+      node.directives.some(function (d) { return d.name === 'model'; })
+    )
+  }
 
-    name = propsToAttrMap[name] || name.toLowerCase();
-    if (isRenderableAttr(name) &&
-      !(attrs && attrs.some(function (a) { return a.name === name; }))
-    ) {
-      segments.push(genAttrSegment(name, value));
-    }
-  });
-  return segments
-}
+  /*  */
 
-function genAttrSegment (name, value) {
-  if (plainStringRE.test(value)) {
-    // force double quote
-    value = value.replace(/^'|'$/g, '"');
-    // force enumerated attr to "true"
-    if (isEnumeratedAttr(name) && value !== "\"false\"") {
-      value = "\"true\"";
-    }
-    return {
-      type: RAW,
-      value: isBooleanAttr(name)
-        ? (" " + name + "=\"" + name + "\"")
-        : value === '""'
-          ? (" " + name)
-          : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
-    }
-  } else {
+
+
+
+  // segment types
+  var RAW = 0;
+  var INTERPOLATION = 1;
+  var EXPRESSION = 2;
+
+  function generate$1 (
+    ast,
+    options
+  ) {
+    var state = new CodegenState(options);
+    var code = ast ? genSSRElement(ast, state) : '_c("div")';
     return {
-      type: EXPRESSION,
-      value: ("_ssrAttr(" + (JSON.stringify(name)) + "," + value + ")")
+      render: ("with(this){return " + code + "}"),
+      staticRenderFns: state.staticRenderFns
     }
   }
-}
 
-function genClassSegments (
-  staticClass,
-  classBinding
-) {
-  if (staticClass && !classBinding) {
-    return [{ type: RAW, value: (" class=" + staticClass) }]
-  } else {
-    return [{
-      type: EXPRESSION,
-      value: ("_ssrClass(" + (staticClass || 'null') + "," + (classBinding || 'null') + ")")
-    }]
-  }
-}
-
-function genStyleSegments (
-  staticStyle,
-  parsedStaticStyle,
-  styleBinding,
-  vShowExpression
-) {
-  if (staticStyle && !styleBinding && !vShowExpression) {
-    return [{ type: RAW, value: (" style=" + (JSON.stringify(staticStyle))) }]
-  } else {
-    return [{
-      type: EXPRESSION,
-      value: ("_ssrStyle(" + (parsedStaticStyle || 'null') + "," + (styleBinding || 'null') + ", " + (vShowExpression
-          ? ("{ display: (" + vShowExpression + ") ? '' : 'none' }")
-          : 'null') + ")")
-    }]
-  }
-}
-
-/*  */
-
-/**
- * In SSR, the vdom tree is generated only once and never patched, so
- * we can optimize most element / trees into plain string render functions.
- * The SSR optimizer walks the AST tree to detect optimizable elements and trees.
- *
- * The criteria for SSR optimizability is quite a bit looser than static tree
- * detection (which is designed for client re-render). In SSR we bail only for
- * components/slots/custom directives.
- */
-
-// optimizability constants
-var optimizability = {
-  FALSE: 0,    // whole sub tree un-optimizable
-  FULL: 1,     // whole sub tree optimizable
-  SELF: 2,     // self optimizable but has some un-optimizable children
-  CHILDREN: 3, // self un-optimizable but have fully optimizable children
-  PARTIAL: 4   // self un-optimizable with some un-optimizable children
-};
-
-var isPlatformReservedTag;
-
-function optimize (root, options) {
-  if (!root) { return }
-  isPlatformReservedTag = options.isReservedTag || no;
-  walk(root, true);
-}
-
-function walk (node, isRoot) {
-  if (isUnOptimizableTree(node)) {
-    node.ssrOptimizability = optimizability.FALSE;
-    return
-  }
-  // root node or nodes with custom directives should always be a VNode
-  var selfUnoptimizable = isRoot || hasCustomDirective(node);
-  var check = function (child) {
-    if (child.ssrOptimizability !== optimizability.FULL) {
-      node.ssrOptimizability = selfUnoptimizable
-        ? optimizability.PARTIAL
-        : optimizability.SELF;
+  function genSSRElement (el, state) {
+    if (el.for && !el.forProcessed) {
+      return genFor(el, state, genSSRElement)
+    } else if (el.if && !el.ifProcessed) {
+      return genIf(el, state, genSSRElement)
+    } else if (el.tag === 'template' && !el.slotTarget) {
+      return el.ssrOptimizability === optimizability.FULL
+        ? genChildrenAsStringNode(el, state)
+        : genSSRChildren(el, state) || 'void 0'
     }
-  };
-  if (selfUnoptimizable) {
-    node.ssrOptimizability = optimizability.CHILDREN;
+
+    switch (el.ssrOptimizability) {
+      case optimizability.FULL:
+        // stringify whole tree
+        return genStringElement(el, state)
+      case optimizability.SELF:
+        // stringify self and check children
+        return genStringElementWithChildren(el, state)
+      case optimizability.CHILDREN:
+        // generate self as VNode and stringify children
+        return genNormalElement(el, state, true)
+      case optimizability.PARTIAL:
+        // generate self as VNode and check children
+        return genNormalElement(el, state, false)
+      default:
+        // bail whole tree
+        return genElement(el, state)
+    }
+  }
+
+  function genNormalElement (el, state, stringifyChildren) {
+    var data = el.plain ? undefined : genData$2(el, state);
+    var children = stringifyChildren
+      ? ("[" + (genChildrenAsStringNode(el, state)) + "]")
+      : genSSRChildren(el, state, true);
+    return ("_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")")
+  }
+
+  function genSSRChildren (el, state, checkSkip) {
+    return genChildren(el, state, checkSkip, genSSRElement, genSSRNode)
+  }
+
+  function genSSRNode (el, state) {
+    return el.type === 1
+      ? genSSRElement(el, state)
+      : genText(el)
+  }
+
+  function genChildrenAsStringNode (el, state) {
+    return el.children.length
+      ? ("_ssrNode(" + (flattenSegments(childrenToSegments(el, state))) + ")")
+      : ''
+  }
+
+  function genStringElement (el, state) {
+    return ("_ssrNode(" + (elementToString(el, state)) + ")")
+  }
+
+  function genStringElementWithChildren (el, state) {
+    var children = genSSRChildren(el, state, true);
+    return ("_ssrNode(" + (flattenSegments(elementToOpenTagSegments(el, state))) + ",\"</" + (el.tag) + ">\"" + (children ? ("," + children) : '') + ")")
+  }
+
+  function elementToString (el, state) {
+    return ("(" + (flattenSegments(elementToSegments(el, state))) + ")")
+  }
+
+  function elementToSegments (el, state) {
+    // v-for / v-if
+    if (el.for && !el.forProcessed) {
+      el.forProcessed = true;
+      return [{
+        type: EXPRESSION,
+        value: genFor(el, state, elementToString, '_ssrList')
+      }]
+    } else if (el.if && !el.ifProcessed) {
+      el.ifProcessed = true;
+      return [{
+        type: EXPRESSION,
+        value: genIf(el, state, elementToString, '"<!---->"')
+      }]
+    } else if (el.tag === 'template') {
+      return childrenToSegments(el, state)
+    }
+
+    var openSegments = elementToOpenTagSegments(el, state);
+    var childrenSegments = childrenToSegments(el, state);
+    var ref = state.options;
+    var isUnaryTag = ref.isUnaryTag;
+    var close = (isUnaryTag && isUnaryTag(el.tag))
+      ? []
+      : [{ type: RAW, value: ("</" + (el.tag) + ">") }];
+    return openSegments.concat(childrenSegments, close)
+  }
+
+  function elementToOpenTagSegments (el, state) {
+    applyModelTransform(el, state);
+    var binding;
+    var segments = [{ type: RAW, value: ("<" + (el.tag)) }];
+    // attrs
+    if (el.attrs) {
+      segments.push.apply(segments, genAttrSegments(el.attrs));
+    }
+    // domProps
+    if (el.props) {
+      segments.push.apply(segments, genDOMPropSegments(el.props, el.attrs));
+    }
+    // v-bind="object"
+    if ((binding = el.attrsMap['v-bind'])) {
+      segments.push({ type: EXPRESSION, value: ("_ssrAttrs(" + binding + ")") });
+    }
+    // v-bind.prop="object"
+    if ((binding = el.attrsMap['v-bind.prop'])) {
+      segments.push({ type: EXPRESSION, value: ("_ssrDOMProps(" + binding + ")") });
+    }
+    // class
+    if (el.staticClass || el.classBinding) {
+      segments.push.apply(
+        segments,
+        genClassSegments(el.staticClass, el.classBinding)
+      );
+    }
+    // style & v-show
+    if (el.staticStyle || el.styleBinding || el.attrsMap['v-show']) {
+      segments.push.apply(
+        segments,
+        genStyleSegments(
+          el.attrsMap.style,
+          el.staticStyle,
+          el.styleBinding,
+          el.attrsMap['v-show']
+        )
+      );
+    }
+    // _scopedId
+    if (state.options.scopeId) {
+      segments.push({ type: RAW, value: (" " + (state.options.scopeId)) });
+    }
+    segments.push({ type: RAW, value: ">" });
+    return segments
   }
-  if (node.type === 1) {
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      walk(child);
-      check(child);
+
+  function childrenToSegments (el, state) {
+    var binding;
+    if ((binding = el.attrsMap['v-html'])) {
+      return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
     }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        walk(block, isRoot);
-        check(block);
-      }
+    if ((binding = el.attrsMap['v-text'])) {
+      return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
     }
-    if (node.ssrOptimizability == null ||
-      (!isRoot && (node.attrsMap['v-html'] || node.attrsMap['v-text']))
-    ) {
-      node.ssrOptimizability = optimizability.FULL;
-    } else {
-      node.children = optimizeSiblings(node);
+    if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+      return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
     }
-  } else {
-    node.ssrOptimizability = optimizability.FULL;
-  }
-}
-
-function optimizeSiblings (el) {
-  var children = el.children;
-  var optimizedChildren = [];
-
-  var currentOptimizableGroup = [];
-  var pushGroup = function () {
-    if (currentOptimizableGroup.length) {
-      optimizedChildren.push({
-        type: 1,
-        parent: el,
-        tag: 'template',
-        attrsList: [],
-        attrsMap: {},
-        children: currentOptimizableGroup,
-        ssrOptimizability: optimizability.FULL
-      });
+    return el.children
+      ? nodesToSegments(el.children, state)
+      : []
+  }
+
+  function nodesToSegments (
+    children,
+    state
+  ) {
+    var segments = [];
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (c.type === 1) {
+        segments.push.apply(segments, elementToSegments(c, state));
+      } else if (c.type === 2) {
+        segments.push({ type: INTERPOLATION, value: c.expression });
+      } else if (c.type === 3) {
+        segments.push({ type: RAW, value: escape(c.text) });
+      }
     }
-    currentOptimizableGroup = [];
-  };
+    return segments
+  }
+
+  function flattenSegments (segments) {
+    var mergedSegments = [];
+    var textBuffer = '';
+
+    var pushBuffer = function () {
+      if (textBuffer) {
+        mergedSegments.push(JSON.stringify(textBuffer));
+        textBuffer = '';
+      }
+    };
 
-  for (var i = 0; i < children.length; i++) {
-    var c = children[i];
-    if (c.ssrOptimizability === optimizability.FULL) {
-      currentOptimizableGroup.push(c);
-    } else {
-      // wrap fully-optimizable adjacent siblings inside a template tag
-      // so that they can be optimized into a single ssrNode by codegen
-      pushGroup();
-      optimizedChildren.push(c);
+    for (var i = 0; i < segments.length; i++) {
+      var s = segments[i];
+      if (s.type === RAW) {
+        textBuffer += s.value;
+      } else if (s.type === INTERPOLATION) {
+        pushBuffer();
+        mergedSegments.push(("_ssrEscape(" + (s.value) + ")"));
+      } else if (s.type === EXPRESSION) {
+        pushBuffer();
+        mergedSegments.push(("(" + (s.value) + ")"));
+      }
     }
-  }
-  pushGroup();
-  return optimizedChildren
-}
+    pushBuffer();
 
-function isUnOptimizableTree (node) {
-  if (node.type === 2 || node.type === 3) { // text or expression
-    return false
-  }
-  return (
-    isBuiltInTag(node.tag) || // built-in (slot, component)
-    !isPlatformReservedTag(node.tag) || // custom component
-    !!node.component || // "is" component
-    isSelectWithModel(node) // <select v-model> requires runtime inspection
-  )
-}
-
-var isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
-
-function hasCustomDirective (node) {
-  return (
-    node.type === 1 &&
-    node.directives &&
-    node.directives.some(function (d) { return !isBuiltInDir(d.name); })
-  )
-}
-
-// <select v-model> cannot be optimized because it requires a runtime check
-// to determine proper selected option
-function isSelectWithModel (node) {
-  return (
-    node.type === 1 &&
-    node.tag === 'select' &&
-    node.directives != null &&
-    node.directives.some(function (d) { return d.name === 'model'; })
-  )
-}
-
-/*  */
-
-// The SSR codegen is essentially extending the default codegen to handle
-// SSR-optimizable nodes and turn them into string render fns. In cases where
-// a node is not optimizable it simply falls back to the default codegen.
-
-// segment types
-var RAW = 0;
-var INTERPOLATION = 1;
-var EXPRESSION = 2;
-
-function generate$1 (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genSSRElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genSSRElement (el, state) {
-  if (el.for && !el.forProcessed) {
-    return genFor(el, state, genSSRElement)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state, genSSRElement)
-  } else if (el.tag === 'template' && !el.slotTarget) {
-    return el.ssrOptimizability === optimizability.FULL
-      ? genChildrenAsStringNode(el, state)
-      : genSSRChildren(el, state) || 'void 0'
-  }
-
-  switch (el.ssrOptimizability) {
-    case optimizability.FULL:
-      // stringify whole tree
-      return genStringElement(el, state)
-    case optimizability.SELF:
-      // stringify self and check children
-      return genStringElementWithChildren(el, state)
-    case optimizability.CHILDREN:
-      // generate self as VNode and stringify children
-      return genNormalElement(el, state, true)
-    case optimizability.PARTIAL:
-      // generate self as VNode and check children
-      return genNormalElement(el, state, false)
-    default:
-      // bail whole tree
-      return genElement(el, state)
-  }
-}
-
-function genNormalElement (el, state, stringifyChildren) {
-  var data = el.plain ? undefined : genData$2(el, state);
-  var children = stringifyChildren
-    ? ("[" + (genChildrenAsStringNode(el, state)) + "]")
-    : genSSRChildren(el, state, true);
-  return ("_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")")
-}
-
-function genSSRChildren (el, state, checkSkip) {
-  return genChildren(el, state, checkSkip, genSSRElement, genSSRNode)
-}
-
-function genSSRNode (el, state) {
-  return el.type === 1
-    ? genSSRElement(el, state)
-    : genText(el)
-}
-
-function genChildrenAsStringNode (el, state) {
-  return el.children.length
-    ? ("_ssrNode(" + (flattenSegments(childrenToSegments(el, state))) + ")")
-    : ''
-}
-
-function genStringElement (el, state) {
-  return ("_ssrNode(" + (elementToString(el, state)) + ")")
-}
-
-function genStringElementWithChildren (el, state) {
-  var children = genSSRChildren(el, state, true);
-  return ("_ssrNode(" + (flattenSegments(elementToOpenTagSegments(el, state))) + ",\"</" + (el.tag) + ">\"" + (children ? ("," + children) : '') + ")")
-}
-
-function elementToString (el, state) {
-  return ("(" + (flattenSegments(elementToSegments(el, state))) + ")")
-}
-
-function elementToSegments (el, state) {
-  // v-for / v-if
-  if (el.for && !el.forProcessed) {
-    el.forProcessed = true;
-    return [{
-      type: EXPRESSION,
-      value: genFor(el, state, elementToString, '_ssrList')
-    }]
-  } else if (el.if && !el.ifProcessed) {
-    el.ifProcessed = true;
-    return [{
-      type: EXPRESSION,
-      value: genIf(el, state, elementToString, '"<!---->"')
-    }]
-  } else if (el.tag === 'template') {
-    return childrenToSegments(el, state)
-  }
-
-  var openSegments = elementToOpenTagSegments(el, state);
-  var childrenSegments = childrenToSegments(el, state);
-  var ref = state.options;
-  var isUnaryTag = ref.isUnaryTag;
-  var close = (isUnaryTag && isUnaryTag(el.tag))
-    ? []
-    : [{ type: RAW, value: ("</" + (el.tag) + ">") }];
-  return openSegments.concat(childrenSegments, close)
-}
-
-function elementToOpenTagSegments (el, state) {
-  applyModelTransform(el, state);
-  var binding;
-  var segments = [{ type: RAW, value: ("<" + (el.tag)) }];
-  // attrs
-  if (el.attrs) {
-    segments.push.apply(segments, genAttrSegments(el.attrs));
-  }
-  // domProps
-  if (el.props) {
-    segments.push.apply(segments, genDOMPropSegments(el.props, el.attrs));
-  }
-  // v-bind="object"
-  if ((binding = el.attrsMap['v-bind'])) {
-    segments.push({ type: EXPRESSION, value: ("_ssrAttrs(" + binding + ")") });
-  }
-  // v-bind.prop="object"
-  if ((binding = el.attrsMap['v-bind.prop'])) {
-    segments.push({ type: EXPRESSION, value: ("_ssrDOMProps(" + binding + ")") });
-  }
-  // class
-  if (el.staticClass || el.classBinding) {
-    segments.push.apply(
-      segments,
-      genClassSegments(el.staticClass, el.classBinding)
-    );
-  }
-  // style & v-show
-  if (el.staticStyle || el.styleBinding || el.attrsMap['v-show']) {
-    segments.push.apply(
-      segments,
-      genStyleSegments(
-        el.attrsMap.style,
-        el.staticStyle,
-        el.styleBinding,
-        el.attrsMap['v-show']
-      )
-    );
+    return mergedSegments.join('+')
   }
-  // _scopedId
-  if (state.options.scopeId) {
-    segments.push({ type: RAW, value: (" " + (state.options.scopeId)) });
-  }
-  segments.push({ type: RAW, value: ">" });
-  return segments
-}
-
-function childrenToSegments (el, state) {
-  var binding;
-  if ((binding = el.attrsMap['v-html'])) {
-    return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
-  }
-  if ((binding = el.attrsMap['v-text'])) {
-    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
-  }
-  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
-    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
-  }
-  return el.children
-    ? nodesToSegments(el.children, state)
-    : []
-}
-
-function nodesToSegments (
-  children,
-  state
-) {
-  var segments = [];
-  for (var i = 0; i < children.length; i++) {
-    var c = children[i];
-    if (c.type === 1) {
-      segments.push.apply(segments, elementToSegments(c, state));
-    } else if (c.type === 2) {
-      segments.push({ type: INTERPOLATION, value: c.expression });
-    } else if (c.type === 3) {
-      segments.push({ type: RAW, value: escape(c.text) });
-    }
-  }
-  return segments
-}
-
-function flattenSegments (segments) {
-  var mergedSegments = [];
-  var textBuffer = '';
-
-  var pushBuffer = function () {
-    if (textBuffer) {
-      mergedSegments.push(JSON.stringify(textBuffer));
-      textBuffer = '';
+
+  /*  */
+
+  // these keywords should not appear inside expressions, but operators like
+  // typeof, instanceof and in are allowed
+  var prohibitedKeywordRE = new RegExp('\\b' + (
+    'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+    'super,throw,while,yield,delete,export,import,return,switch,default,' +
+    'extends,finally,continue,debugger,function,arguments'
+  ).split(',').join('\\b|\\b') + '\\b');
+
+  // these unary operators should not be used as property/method names
+  var unaryOperatorsRE = new RegExp('\\b' + (
+    'delete,typeof,void'
+  ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+  // strip strings in expressions
+  var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+  // detect problematic expressions in a template
+  function detectErrors (ast) {
+    var errors = [];
+    if (ast) {
+      checkNode(ast, errors);
     }
-  };
+    return errors
+  }
 
-  for (var i = 0; i < segments.length; i++) {
-    var s = segments[i];
-    if (s.type === RAW) {
-      textBuffer += s.value;
-    } else if (s.type === INTERPOLATION) {
-      pushBuffer();
-      mergedSegments.push(("_ssrEscape(" + (s.value) + ")"));
-    } else if (s.type === EXPRESSION) {
-      pushBuffer();
-      mergedSegments.push(("(" + (s.value) + ")"));
-    }
-  }
-  pushBuffer();
-
-  return mergedSegments.join('+')
-}
-
-/*  */
-
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-var prohibitedKeywordRE = new RegExp('\\b' + (
-  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-  'super,throw,while,yield,delete,export,import,return,switch,default,' +
-  'extends,finally,continue,debugger,function,arguments'
-).split(',').join('\\b|\\b') + '\\b');
-
-// these unary operators should not be used as property/method names
-var unaryOperatorsRE = new RegExp('\\b' + (
-  'delete,typeof,void'
-).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
-
-// strip strings in expressions
-var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
-
-// detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
-  if (ast) {
-    checkNode(ast, errors);
-  }
-  return errors
-}
-
-function checkNode (node, errors) {
-  if (node.type === 1) {
-    for (var name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        var value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
-          } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
+  function checkNode (node, errors) {
+    if (node.type === 1) {
+      for (var name in node.attrsMap) {
+        if (dirRE.test(name)) {
+          var value = node.attrsMap[name];
+          if (value) {
+            if (name === 'v-for') {
+              checkFor(node, ("v-for=\"" + value + "\""), errors);
+            } else if (onRE.test(name)) {
+              checkEvent(value, (name + "=\"" + value + "\""), errors);
+            } else {
+              checkExpression(value, (name + "=\"" + value + "\""), errors);
+            }
           }
         }
       }
-    }
-    if (node.children) {
-      for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
+      if (node.children) {
+        for (var i = 0; i < node.children.length; i++) {
+          checkNode(node.children[i], errors);
+        }
       }
-    }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
-  }
-}
-
-function checkEvent (exp, text, errors) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
-      "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
-    );
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier (
-  ident,
-  type,
-  text,
-  errors
-) {
-  if (typeof ident === 'string') {
-    try {
-      new Function(("var " + ident + "=_"));
-    } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    } else if (node.type === 2) {
+      checkExpression(node.expression, node.text, errors);
     }
   }
-}
 
-function checkExpression (exp, text, errors) {
-  try {
-    new Function(("return " + exp));
-  } catch (e) {
-    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push(
-        "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
-      );
-    } else {
+  function checkEvent (exp, text, errors) {
+    var stipped = exp.replace(stripStringRE, '');
+    var keywordMatch = stipped.match(unaryOperatorsRE);
+    if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
       errors.push(
-        "invalid expression: " + (e.message) + " in\n\n" +
-        "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
+        "avoid using JavaScript unary operator as property name: " +
+        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
       );
     }
+    checkExpression(exp, text, errors);
   }
-}
 
-/*  */
-
-function createFunction (code, errors) {
-  try {
-    return new Function(code)
-  } catch (err) {
-    errors.push({ err: err, code: code });
-    return noop
+  function checkFor (node, text, errors) {
+    checkExpression(node.for || '', text, errors);
+    checkIdentifier(node.alias, 'v-for alias', text, errors);
+    checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+    checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
   }
-}
-
-function createCompileToFunctionFn (compile) {
-  var cache = Object.create(null);
 
-  return function compileToFunctions (
-    template,
-    options,
-    vm
+  function checkIdentifier (
+    ident,
+    type,
+    text,
+    errors
   ) {
-    options = extend({}, options);
-    var warn$$1 = options.warn || warn;
-    delete options.warn;
-
-    /* istanbul ignore if */
-    {
-      // detect possible CSP restriction
+    if (typeof ident === 'string') {
       try {
-        new Function('return 1');
+        new Function(("var " + ident + "=_"));
       } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$$1(
-            'It seems you are using the standalone build of Vue.js in an ' +
-            'environment with Content Security Policy that prohibits unsafe-eval. ' +
-            'The template compiler cannot work in this environment. Consider ' +
-            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-            'templates into render functions.'
-          );
-        }
+        errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
       }
     }
+  }
 
-    // check cache
-    var key = options.delimiters
-      ? String(options.delimiters) + template
-      : template;
-    if (cache[key]) {
-      return cache[key]
-    }
-
-    // compile
-    var compiled = compile(template, options);
-
-    // check compilation errors/tips
-    {
-      if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
+  function checkExpression (exp, text, errors) {
+    try {
+      new Function(("return " + exp));
+    } catch (e) {
+      var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+      if (keywordMatch) {
+        errors.push(
+          "avoid using JavaScript keyword as property name: " +
+          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+        );
+      } else {
+        errors.push(
+          "invalid expression: " + (e.message) + " in\n\n" +
+          "    " + exp + "\n\n" +
+          "  Raw expression: " + (text.trim()) + "\n"
         );
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
       }
     }
+  }
+
+  /*  */
 
-    // turn code into functions
-    var res = {};
-    var fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-      return createFunction(code, fnGenErrors)
-    });
 
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn$$1(
-          "Failed to generate render function:\n\n" +
-          fnGenErrors.map(function (ref) {
-            var err = ref.err;
-            var code = ref.code;
-
-            return ((err.toString()) + " in\n\n" + code + "\n");
-        }).join('\n'),
-          vm
-        );
-      }
-    }
 
-    return (cache[key] = res)
+  function createFunction (code, errors) {
+    try {
+      return new Function(code)
+    } catch (err) {
+      errors.push({ err: err, code: code });
+      return noop
+    }
   }
-}
 
-/*  */
+  function createCompileToFunctionFn (compile) {
+    var cache = Object.create(null);
 
-function createCompilerCreator (baseCompile) {
-  return function createCompiler (baseOptions) {
-    function compile (
+    return function compileToFunctions (
       template,
-      options
+      options,
+      vm
     ) {
-      var finalOptions = Object.create(baseOptions);
-      var errors = [];
-      var tips = [];
-      finalOptions.warn = function (msg, tip) {
-        (tip ? tips : errors).push(msg);
-      };
+      options = extend({}, options);
+      var warn$$1 = options.warn || warn;
+      delete options.warn;
 
-      if (options) {
-        // merge custom modules
-        if (options.modules) {
-          finalOptions.modules =
-            (baseOptions.modules || []).concat(options.modules);
+      /* istanbul ignore if */
+      {
+        // detect possible CSP restriction
+        try {
+          new Function('return 1');
+        } catch (e) {
+          if (e.toString().match(/unsafe-eval|CSP/)) {
+            warn$$1(
+              'It seems you are using the standalone build of Vue.js in an ' +
+              'environment with Content Security Policy that prohibits unsafe-eval. ' +
+              'The template compiler cannot work in this environment. Consider ' +
+              'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+              'templates into render functions.'
+            );
+          }
         }
-        // merge custom directives
-        if (options.directives) {
-          finalOptions.directives = extend(
-            Object.create(baseOptions.directives || null),
-            options.directives
+      }
+
+      // check cache
+      var key = options.delimiters
+        ? String(options.delimiters) + template
+        : template;
+      if (cache[key]) {
+        return cache[key]
+      }
+
+      // compile
+      var compiled = compile(template, options);
+
+      // check compilation errors/tips
+      {
+        if (compiled.errors && compiled.errors.length) {
+          warn$$1(
+            "Error compiling template:\n\n" + template + "\n\n" +
+            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+            vm
           );
         }
-        // copy other options
-        for (var key in options) {
-          if (key !== 'modules' && key !== 'directives') {
-            finalOptions[key] = options[key];
-          }
+        if (compiled.tips && compiled.tips.length) {
+          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
         }
       }
 
-      var compiled = baseCompile(template, finalOptions);
+      // turn code into functions
+      var res = {};
+      var fnGenErrors = [];
+      res.render = createFunction(compiled.render, fnGenErrors);
+      res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+        return createFunction(code, fnGenErrors)
+      });
+
+      // check function generation errors.
+      // this should only happen if there is a bug in the compiler itself.
+      // mostly for codegen development use
+      /* istanbul ignore if */
       {
-        errors.push.apply(errors, detectErrors(compiled.ast));
+        if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+          warn$$1(
+            "Failed to generate render function:\n\n" +
+            fnGenErrors.map(function (ref) {
+              var err = ref.err;
+              var code = ref.code;
+
+              return ((err.toString()) + " in\n\n" + code + "\n");
+          }).join('\n'),
+            vm
+          );
+        }
       }
-      compiled.errors = errors;
-      compiled.tips = tips;
-      return compiled
+
+      return (cache[key] = res)
     }
+  }
 
-    return {
-      compile: compile,
-      compileToFunctions: createCompileToFunctionFn(compile)
-    }
-  }
-}
-
-/*  */
-
-var createCompiler = createCompilerCreator(function baseCompile (
-  template,
-  options
-) {
-  var ast = parse(template.trim(), options);
-  optimize(ast, options);
-  var code = generate$1(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
-  }
-});
-
-/*  */
-
-var ref = createCompiler(baseOptions);
-var compileToFunctions = ref.compileToFunctions;
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
+  /*  */
+
+  function createCompilerCreator (baseCompile) {
+    return function createCompiler (baseOptions) {
+      function compile (
+        template,
+        options
+      ) {
+        var finalOptions = Object.create(baseOptions);
+        var errors = [];
+        var tips = [];
+        finalOptions.warn = function (msg, tip) {
+          (tip ? tips : errors).push(msg);
+        };
+
+        if (options) {
+          // merge custom modules
+          if (options.modules) {
+            finalOptions.modules =
+              (baseOptions.modules || []).concat(options.modules);
+          }
+          // merge custom directives
+          if (options.directives) {
+            finalOptions.directives = extend(
+              Object.create(baseOptions.directives || null),
+              options.directives
+            );
+          }
+          // copy other options
+          for (var key in options) {
+            if (key !== 'modules' && key !== 'directives') {
+              finalOptions[key] = options[key];
+            }
+          }
         }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
+
+        var compiled = baseCompile(template, finalOptions);
+        {
+          errors.push.apply(errors, detectErrors(compiled.ast));
         }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-var ssrHelpers = {
-  _ssrEscape: escape,
-  _ssrNode: renderStringNode,
-  _ssrList: renderStringList,
-  _ssrAttr: renderAttr,
-  _ssrAttrs: renderAttrs$1,
-  _ssrDOMProps: renderDOMProps$1,
-  _ssrClass: renderSSRClass,
-  _ssrStyle: renderSSRStyle
-};
-
-function installSSRHelpers (vm) {
-  if (vm._ssrNode) {
-    return
-  }
-  var Vue = vm.constructor;
-  while (Vue.super) {
-    Vue = Vue.super;
-  }
-  extend(Vue.prototype, ssrHelpers);
-  if (Vue.FunctionalRenderContext) {
-    extend(Vue.FunctionalRenderContext.prototype, ssrHelpers);
-  }
-}
-
-var StringNode = function StringNode (
-  open,
-  close,
-  children,
-  normalizationType
-) {
-  this.isString = true;
-  this.open = open;
-  this.close = close;
-  if (children) {
-    this.children = normalizationType === 1
-      ? simpleNormalizeChildren(children)
-      : normalizationType === 2
-        ? normalizeChildren(children)
-        : children;
-  } else {
-    this.children = void 0;
-  }
-};
-
-function renderStringNode (
-  open,
-  close,
-  children,
-  normalizationType
-) {
-  return new StringNode(open, close, children, normalizationType)
-}
-
-function renderStringList (
-  val,
-  render
-) {
-  var ret = '';
-  var i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    for (i = 0, l = val.length; i < l; i++) {
-      ret += render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    for (i = 0; i < val; i++) {
-      ret += render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret += render(val[key], key, i);
-    }
-  }
-  return ret
-}
-
-function renderAttrs$1 (obj) {
-  var res = '';
-  for (var key in obj) {
-    res += renderAttr(key, obj[key]);
-  }
-  return res
-}
-
-function renderDOMProps$1 (obj) {
-  var res = '';
-  for (var key in obj) {
-    var attr = propsToAttrMap[key] || key.toLowerCase();
-    if (isRenderableAttr(attr)) {
-      res += renderAttr(attr, obj[key]);
-    }
-  }
-  return res
-}
-
-function renderSSRClass (
-  staticClass,
-  dynamic
-) {
-  var res = renderClass(staticClass, dynamic);
-  return res === '' ? res : (" class=\"" + (escape(res)) + "\"")
-}
-
-function renderSSRStyle (
-  staticStyle,
-  dynamic,
-  extra
-) {
-  var style = {};
-  if (staticStyle) { extend(style, staticStyle); }
-  if (dynamic) { extend(style, normalizeStyleBinding(dynamic)); }
-  if (extra) { extend(style, extra); }
-  var res = genStyle(style);
-  return res === '' ? res : (" style=" + (JSON.stringify(escape(res))))
-}
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-{
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
+        compiled.errors = errors;
+        compiled.tips = tips;
+        return compiled
+      }
+
+      return {
+        compile: compile,
+        compileToFunctions: createCompileToFunctionFn(compile)
+      }
+    }
+  }
 
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
+  /*  */
 
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
+  var createCompiler = createCompilerCreator(function baseCompile (
+    template,
+    options
+  ) {
+    var ast = parse(template.trim(), options);
+    optimize(ast, options);
+    var code = generate$1(ast, options);
+    return {
+      ast: ast,
+      render: code.render,
+      staticRenderFns: code.staticRenderFns
+    }
+  });
+
+  /*  */
+
+  var ref = createCompiler(baseOptions);
+  var compile = ref.compile;
+  var compileToFunctions = ref.compileToFunctions;
+
+  /*  */
+
+  // The template compiler attempts to minimize the need for normalization by
+  // statically analyzing the template at compile time.
+  //
+  // For plain HTML markup, normalization can be completely skipped because the
+  // generated render function is guaranteed to return Array<VNode>. There are
+  // two cases where extra normalization is needed:
+
+  // 1. When the children contains components - because a functional component
+  // may return an Array instead of a single root. In this case, just a simple
+  // normalization is needed - if any child is an Array, we flatten the whole
+  // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+  // because functional components already normalize their own children.
+  function simpleNormalizeChildren (children) {
+    for (var i = 0; i < children.length; i++) {
+      if (Array.isArray(children[i])) {
+        return Array.prototype.concat.apply([], children)
+      }
+    }
+    return children
+  }
+
+  // 2. When the children contains constructs that always generated nested Arrays,
+  // e.g. <template>, <slot>, v-for, or when the children is provided by user
+  // with hand-written render functions / JSX. In such cases a full normalization
+  // is needed to cater to all possible types of children values.
+  function normalizeChildren (children) {
+    return isPrimitive(children)
+      ? [createTextVNode(children)]
+      : Array.isArray(children)
+        ? normalizeArrayChildren(children)
+        : undefined
+  }
+
+  function isTextNode (node) {
+    return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+  }
+
+  function normalizeArrayChildren (children, nestedIndex) {
+    var res = [];
+    var i, c, lastIndex, last;
+    for (i = 0; i < children.length; i++) {
+      c = children[i];
+      if (isUndef(c) || typeof c === 'boolean') { continue }
+      lastIndex = res.length - 1;
+      last = res[lastIndex];
+      //  nested
+      if (Array.isArray(c)) {
+        if (c.length > 0) {
+          c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+          // merge adjacent text nodes
+          if (isTextNode(c[0]) && isTextNode(last)) {
+            res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+            c.shift();
+          }
+          res.push.apply(res, c);
+        }
+      } else if (isPrimitive(c)) {
+        if (isTextNode(last)) {
+          // merge adjacent text nodes
+          // this is necessary for SSR hydration because text nodes are
+          // essentially merged when rendered to HTML strings
+          res[lastIndex] = createTextVNode(last.text + c);
+        } else if (c !== '') {
+          // convert primitive to vnode
+          res.push(createTextVNode(c));
+        }
+      } else {
+        if (isTextNode(c) && isTextNode(last)) {
+          // merge adjacent text nodes
+          res[lastIndex] = createTextVNode(last.text + c.text);
         } else {
-          target[key] = value;
-          return true
+          // default key for nested array children (likely generated by v-for)
+          if (isTrue(children._isVList) &&
+            isDef(c.tag) &&
+            isUndef(c.key) &&
+            isDef(nestedIndex)) {
+            c.key = "__vlist" + nestedIndex + "_" + i + "__";
+          }
+          res.push(c);
         }
       }
-    });
+    }
+    return res
   }
 
-  
-}
+  /*  */
 
-/*  */
+  var ssrHelpers = {
+    _ssrEscape: escape,
+    _ssrNode: renderStringNode,
+    _ssrList: renderStringList,
+    _ssrAttr: renderAttr,
+    _ssrAttrs: renderAttrs$1,
+    _ssrDOMProps: renderDOMProps$1,
+    _ssrClass: renderSSRClass,
+    _ssrStyle: renderSSRStyle
+  };
 
-var seenObjects = new _Set();
+  function installSSRHelpers (vm) {
+    if (vm._ssrNode) {
+      return
+    }
+    var Vue = vm.constructor;
+    while (Vue.super) {
+      Vue = Vue.super;
+    }
+    extend(Vue.prototype, ssrHelpers);
+    if (Vue.FunctionalRenderContext) {
+      extend(Vue.FunctionalRenderContext.prototype, ssrHelpers);
+    }
+  }
 
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
+  var StringNode = function StringNode (
+    open,
+    close,
+    children,
+    normalizationType
+  ) {
+    this.isString = true;
+    this.open = open;
+    this.close = close;
+    if (children) {
+      this.children = normalizationType === 1
+        ? simpleNormalizeChildren(children)
+        : normalizationType === 2
+          ? normalizeChildren(children)
+          : children;
+    } else {
+      this.children = void 0;
+    }
+  };
 
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
+  function renderStringNode (
+    open,
+    close,
+    children,
+    normalizationType
+  ) {
+    return new StringNode(open, close, children, normalizationType)
   }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
+
+  function renderStringList (
+    val,
+    render
+  ) {
+    var ret = '';
+    var i, l, keys, key;
+    if (Array.isArray(val) || typeof val === 'string') {
+      for (i = 0, l = val.length; i < l; i++) {
+        ret += render(val[i], i);
+      }
+    } else if (typeof val === 'number') {
+      for (i = 0; i < val; i++) {
+        ret += render(i + 1, i);
+      }
+    } else if (isObject(val)) {
+      keys = Object.keys(val);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret += render(val[key], key, i);
+      }
     }
-    seen.add(depId);
+    return ret
   }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
+
+  function renderAttrs$1 (obj) {
+    var res = '';
+    for (var key in obj) {
+      if (isSSRUnsafeAttr(key)) {
+        continue
+      }
+      res += renderAttr(key, obj[key]);
+    }
+    return res
   }
-}
 
-{
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
+  function renderDOMProps$1 (obj) {
+    var res = '';
+    for (var key in obj) {
+      var attr = propsToAttrMap[key] || key.toLowerCase();
+      if (isRenderableAttr(attr)) {
+        res += renderAttr(attr, obj[key]);
+      }
+    }
+    return res
+  }
+
+  function renderSSRClass (
+    staticClass,
+    dynamic
   ) {
-    
+    var res = renderClass(staticClass, dynamic);
+    return res === '' ? res : (" class=\"" + (escape(res)) + "\"")
+  }
+
+  function renderSSRStyle (
+    staticStyle,
+    dynamic,
+    extra
+  ) {
+    var style = {};
+    if (staticStyle) { extend(style, staticStyle); }
+    if (dynamic) { extend(style, normalizeStyleBinding(dynamic)); }
+    if (extra) { extend(style, extra); }
+    var res = genStyle(style);
+    return res === '' ? res : (" style=" + (JSON.stringify(escape(res))))
   }
-}
 
-/*  */
+  /* not type checking this file because flow doesn't play well with Proxy */
+
+  {
+    var allowedGlobals = makeMap(
+      'Infinity,undefined,NaN,isFinite,isNaN,' +
+      'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+      'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+      'require' // for Webpack/Browserify
+    );
+
+    var hasProxy =
+      typeof Proxy !== 'undefined' && isNative(Proxy);
 
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
+    if (hasProxy) {
+      var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+      config.keyCodes = new Proxy(config.keyCodes, {
+        set: function set (target, key, value) {
+          if (isBuiltInModifier(key)) {
+            warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+            return false
+          } else {
+            target[key] = value;
+            return true
+          }
+        }
+      });
+    }
   }
-});
 
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
+  /*  */
+
+  var seenObjects = new _Set();
+
+  /**
+   * Recursively traverse an object to evoke all converted
+   * getters, so that every nested property inside the object
+   * is collected as a "deep" dependency.
+   */
+  function traverse (val) {
+    _traverse(val, seenObjects);
+    seenObjects.clear();
+  }
 
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
+  function _traverse (val, seen) {
+    var i, keys;
+    var isA = Array.isArray(val);
+    if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+      return
+    }
+    if (val.__ob__) {
+      var depId = val.__ob__.dep.id;
+      if (seen.has(depId)) {
+        return
       }
+      seen.add(depId);
+    }
+    if (isA) {
+      i = val.length;
+      while (i--) { _traverse(val[i], seen); }
     } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  vm
-) {
-  var name, def, cur, old, event;
-  for (name in on) {
-    def = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
+      keys = Object.keys(val);
+      i = keys.length;
+      while (i--) { _traverse(val[keys[i]], seen); }
+    }
+  }
+
+  {
+    var perf = inBrowser && window.performance;
     /* istanbul ignore if */
-    if (isUndef(cur)) {
-      "development" !== 'production' && warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
+    if (
+      perf &&
+      perf.mark &&
+      perf.measure &&
+      perf.clearMarks &&
+      perf.clearMeasures
+    ) ;
+  }
+
+  /*  */
+
+  var normalizeEvent = cached(function (name) {
+    var passive = name.charAt(0) === '&';
+    name = passive ? name.slice(1) : name;
+    var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+    name = once$$1 ? name.slice(1) : name;
+    var capture = name.charAt(0) === '!';
+    name = capture ? name.slice(1) : name;
+    return {
+      name: name,
+      once: once$$1,
+      capture: capture,
+      passive: passive
+    }
+  });
+
+  function createFnInvoker (fns) {
+    function invoker () {
+      var arguments$1 = arguments;
+
+      var fns = invoker.fns;
+      if (Array.isArray(fns)) {
+        var cloned = fns.slice();
+        for (var i = 0; i < cloned.length; i++) {
+          cloned[i].apply(null, arguments$1);
+        }
+      } else {
+        // return handler return value for single handlers
+        return fns.apply(null, arguments)
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
     }
+    invoker.fns = fns;
+    return invoker
   }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
+
+  function updateListeners (
+    on,
+    oldOn,
+    add,
+    remove$$1,
+    createOnceHandler,
+    vm
+  ) {
+    var name, def$$1, cur, old, event;
+    for (name in on) {
+      def$$1 = cur = on[name];
+      old = oldOn[name];
       event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
+      if (isUndef(cur)) {
+        warn(
+          "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+          vm
+        );
+      } else if (isUndef(old)) {
+        if (isUndef(cur.fns)) {
+          cur = on[name] = createFnInvoker(cur);
+        }
+        if (isTrue(event.once)) {
+          cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+        }
+        add(event.name, cur, event.capture, event.passive, event.params);
+      } else if (cur !== old) {
+        old.fns = cur;
+        on[name] = old;
+      }
+    }
+    for (name in oldOn) {
+      if (isUndef(on[name])) {
+        event = normalizeEvent(name);
+        remove$$1(event.name, oldOn[name], event.capture);
+      }
     }
   }
-}
 
-/*  */
+  /*  */
 
-/*  */
+  /*  */
 
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
+  function extractPropsFromVNodeData (
+    data,
+    Ctor,
+    tag
+  ) {
+    // we are only extracting raw values here.
+    // validation and default values are handled in the child
+    // component itself.
+    var propOptions = Ctor.options.props;
+    if (isUndef(propOptions)) {
+      return
+    }
+    var res = {};
+    var attrs = data.attrs;
+    var props = data.props;
+    if (isDef(attrs) || isDef(props)) {
+      for (var key in propOptions) {
+        var altKey = hyphenate(key);
+        {
+          var keyInLowerCase = key.toLowerCase();
+          if (
+            key !== keyInLowerCase &&
+            attrs && hasOwn(attrs, keyInLowerCase)
+          ) {
+            tip(
+              "Prop \"" + keyInLowerCase + "\" is passed to component " +
+              (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+              " \"" + key + "\". " +
+              "Note that HTML attributes are case-insensitive and camelCased " +
+              "props need to use their kebab-case equivalents when using in-DOM " +
+              "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+            );
+          }
         }
+        checkProp(res, props, key, altKey, true) ||
+        checkProp(res, attrs, key, altKey, false);
       }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
     }
+    return res
   }
-  return res
-}
 
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
+  function checkProp (
+    res,
+    hash,
+    key,
+    altKey,
+    preserve
+  ) {
+    if (isDef(hash)) {
+      if (hasOwn(hash, key)) {
+        res[key] = hash[key];
+        if (!preserve) {
+          delete hash[key];
+        }
+        return true
+      } else if (hasOwn(hash, altKey)) {
+        res[key] = hash[altKey];
+        if (!preserve) {
+          delete hash[altKey];
+        }
+        return true
       }
-      return true
     }
+    return false
+  }
+
+  /*  */
+
+  function ensureCtor (comp, base) {
+    if (
+      comp.__esModule ||
+      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+    ) {
+      comp = comp.default;
+    }
+    return isObject(comp)
+      ? base.extend(comp)
+      : comp
   }
-  return false
-}
 
-/*  */
+  function createAsyncPlaceholder (
+    factory,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    var node = createEmptyVNode();
+    node.asyncFactory = factory;
+    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+    return node
+  }
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  function resolveAsyncComponent (
+    factory,
+    baseCtor,
+    context
   ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
+    if (isTrue(factory.error) && isDef(factory.errorComp)) {
+      return factory.errorComp
+    }
 
-    var forceRender = function () {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-    };
+    if (isDef(factory.resolved)) {
+      return factory.resolved
+    }
 
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender();
-      }
-    });
+    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+      return factory.loadingComp
+    }
+
+    if (isDef(factory.contexts)) {
+      // already pending
+      factory.contexts.push(context);
+    } else {
+      var contexts = factory.contexts = [context];
+      var sync = true;
 
-    var reject = once(function (reason) {
-      "development" !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender();
-      }
-    });
+      var forceRender = function (renderCompleted) {
+        for (var i = 0, l = contexts.length; i < l; i++) {
+          contexts[i].$forceUpdate();
+        }
 
-    var res = factory(resolve, reject);
+        if (renderCompleted) {
+          contexts.length = 0;
+        }
+      };
 
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
+      var resolve = once(function (res) {
+        // cache resolved
+        factory.resolved = ensureCtor(res, baseCtor);
+        // invoke callbacks only if this is not a synchronous resolve
+        // (async resolves are shimmed as synchronous during SSR)
+        if (!sync) {
+          forceRender(true);
         }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
+      });
 
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
+      var reject = once(function (reason) {
+        warn(
+          "Failed to resolve async component: " + (String(factory)) +
+          (reason ? ("\nReason: " + reason) : '')
+        );
+        if (isDef(factory.errorComp)) {
+          factory.error = true;
+          forceRender(true);
         }
+      });
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender();
-              }
-            }, res.delay || 200);
+      var res = factory(resolve, reject);
+
+      if (isObject(res)) {
+        if (typeof res.then === 'function') {
+          // () => Promise
+          if (isUndef(factory.resolved)) {
+            res.then(resolve, reject);
           }
-        }
+        } else if (isDef(res.component) && typeof res.component.then === 'function') {
+          res.component.then(resolve, reject);
 
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
+          if (isDef(res.error)) {
+            factory.errorComp = ensureCtor(res.error, baseCtor);
+          }
+
+          if (isDef(res.loading)) {
+            factory.loadingComp = ensureCtor(res.loading, baseCtor);
+            if (res.delay === 0) {
+              factory.loading = true;
+            } else {
+              setTimeout(function () {
+                if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                  factory.loading = true;
+                  forceRender(false);
+                }
+              }, res.delay || 200);
             }
-          }, res.timeout);
+          }
+
+          if (isDef(res.timeout)) {
+            setTimeout(function () {
+              if (isUndef(factory.resolved)) {
+                reject(
+                  "timeout (" + (res.timeout) + "ms)"
+                );
+              }
+            }, res.timeout);
+          }
         }
       }
-    }
 
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+      sync = false;
+      // return in case resolved synchronously
+      return factory.loading
+        ? factory.loadingComp
+        : factory.resolved
+    }
   }
-}
-
-/*  */
-
-/*  */
 
-/*  */
+  /*  */
 
-/*  */
+  /*  */
 
+  /*  */
 
+  /*  */
 
-var target;
+  var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
+  function add (event, fn) {
     target.$on(event, fn);
   }
-}
 
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
+  function remove$1 (event, fn) {
+    target.$off(event, fn);
+  }
+
+  function createOnceHandler (event, fn) {
+    var _target = target;
+    return function onceHandler () {
+      var res = fn.apply(null, arguments);
+      if (res !== null) {
+        _target.$off(event, onceHandler);
+      }
+    }
+  }
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
-  target = undefined;
-}
+  function updateComponentListeners (
+    vm,
+    listeners,
+    oldListeners
+  ) {
+    target = vm;
+    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+    target = undefined;
+  }
 
-/*  */
+  /*  */
 
 
 
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
+  /**
+   * Runtime helper for resolving raw children VNodes into a slot object.
+   */
+  function resolveSlots (
+    children,
+    context
+  ) {
+    var slots = {};
+    if (!children) {
+      return slots
+    }
+    for (var i = 0, l = children.length; i < l; i++) {
+      var child = children[i];
+      var data = child.data;
+      // remove slot attribute if the node is resolved as a Vue slot node
+      if (data && data.attrs && data.attrs.slot) {
+        delete data.attrs.slot;
+      }
+      // named slots should only be respected if the vnode was rendered in the
+      // same context.
+      if ((child.context === context || child.fnContext === context) &&
+        data && data.slot != null
+      ) {
+        var name = data.slot;
+        var slot = (slots[name] || (slots[name] = []));
+        if (child.tag === 'template') {
+          slot.push.apply(slot, child.children || []);
+        } else {
+          slot.push(child);
+        }
       } else {
-        slot.push(child);
+        (slots.default || (slots.default = [])).push(child);
       }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
     }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
+    // ignore slots that contains only whitespace
+    for (var name$1 in slots) {
+      if (slots[name$1].every(isWhitespace)) {
+        delete slots[name$1];
+      }
     }
+    return slots
   }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
+  function isWhitespace (node) {
+    return (node.isComment && !node.asyncFactory) || node.text === ' '
   }
-  return res
-}
-
-/*  */
-
-var activeInstance = null;
 
-
-
-
-
-
-
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  {
-    
+  function resolveScopedSlots (
+    fns, // see flow/vnode
+    res
+  ) {
+    res = res || {};
+    for (var i = 0; i < fns.length; i++) {
+      if (Array.isArray(fns[i])) {
+        resolveScopedSlots(fns[i], res);
+      } else {
+        res[fns[i].key] = fns[i].fn;
+      }
+    }
+    return res
   }
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
+  /*  */
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  var activeInstance = null;
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
+  function updateChildComponent (
+    vm,
+    propsData,
+    listeners,
+    parentVnode,
+    renderChildren
+  ) {
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+    // determine whether component has slot children
+    // we need to do this before overwriting $options._renderChildren
+    var hasChildren = !!(
+      renderChildren ||               // has new static slots
+      vm.$options._renderChildren ||  // has old static slots
+      parentVnode.data.scopedSlots || // has new scoped slots
+      vm.$scopedSlots !== emptyObject // has old scoped slots
+    );
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
+    vm.$options._parentVnode = parentVnode;
+    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+    if (vm._vnode) { // update child tree's parent
+      vm._vnode.parent = parentVnode;
+    }
+    vm.$options._renderChildren = renderChildren;
+
+    // update $attrs and $listeners hash
+    // these are also reactive so they may trigger child update if the child
+    // used them during render
+    vm.$attrs = parentVnode.data.attrs || emptyObject;
+    vm.$listeners = listeners || emptyObject;
+
+    // update props
+    if (propsData && vm.$options.props) {
+      toggleObserving(false);
+      var props = vm._props;
+      var propKeys = vm.$options._propKeys || [];
+      for (var i = 0; i < propKeys.length; i++) {
+        var key = propKeys[i];
+        var propOptions = vm.$options.props; // wtf flow?
+        props[key] = validateProp(key, propOptions, propsData, vm);
+      }
+      toggleObserving(true);
+      // keep a copy of raw propsData
+      vm.$options.propsData = propsData;
     }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+    // update listeners
+    listeners = listeners || emptyObject;
+    var oldListeners = vm.$options._parentListeners;
+    vm.$options._parentListeners = listeners;
+    updateComponentListeners(vm, listeners, oldListeners);
 
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  {
-    
+    // resolve slots + force update if has children
+    if (hasChildren) {
+      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+      vm.$forceUpdate();
+    }
   }
-}
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
+  function isInInactiveTree (vm) {
+    while (vm && (vm = vm.$parent)) {
+      if (vm._inactive) { return true }
+    }
+    return false
   }
-  return false
-}
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
+  function activateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = false;
+      if (isInInactiveTree(vm)) {
+        return
+      }
+    } else if (vm._directInactive) {
       return
     }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+    if (vm._inactive || vm._inactive === null) {
+      vm._inactive = false;
+      for (var i = 0; i < vm.$children.length; i++) {
+        activateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'activated');
     }
-    callHook(vm, 'activated');
   }
-}
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
+  function deactivateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = true;
+      if (isInInactiveTree(vm)) {
+        return
+      }
     }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
+    if (!vm._inactive) {
+      vm._inactive = true;
+      for (var i = 0; i < vm.$children.length; i++) {
+        deactivateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'deactivated');
     }
-    callHook(vm, 'deactivated');
   }
-}
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
+  function callHook (vm, hook) {
+    // #7573 disable dep collection when invoking lifecycle hooks
+    pushTarget();
+    var handlers = vm.$options[hook];
+    if (handlers) {
+      for (var i = 0, j = handlers.length; i < j; i++) {
+        try {
+          handlers[i].call(vm);
+        } catch (e) {
+          handleError(e, vm, (hook + " hook"));
+        }
       }
     }
+    if (vm._hasHookEvent) {
+      vm.$emit('hook:' + hook);
+    }
+    popTarget();
   }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
-
-/*  */
-
 
+  /*  */
 
+  /**
+   * Queue a kept-alive component that was activated during patch.
+   * The queue will be processed after the entire tree has been patched.
+   */
+  function queueActivatedComponent (vm) {
+    // setting _inactive to false here so that a render function can
+    // rely on checking whether it's in an inactive tree (e.g. router-view)
+    vm._inactive = false;
+  }
 
-var activatedChildren = [];
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-
-/*  */
+  /*  */
 
-/*  */
+  /*  */
 
-/*  */
+  /*  */
 
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
+  var SIMPLE_NORMALIZE = 1;
+  var ALWAYS_NORMALIZE = 2;
 
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
+  // wrapper function for providing a more flexible interface
+  // without getting yelled at by flow
+  function createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType,
+    alwaysNormalize
+  ) {
+    if (Array.isArray(data) || isPrimitive(data)) {
+      normalizationType = children;
+      children = data;
+      data = undefined;
+    }
+    if (isTrue(alwaysNormalize)) {
+      normalizationType = ALWAYS_NORMALIZE;
+    }
+    return _createElement(context, tag, data, children, normalizationType)
   }
-  return _createElement(context, tag, data, children, normalizationType)
-}
 
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    "development" !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if ("development" !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  function _createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType
   ) {
-    {
+    if (isDef(data) && isDef((data).__ob__)) {
       warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
+        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+        'Always create fresh vnode data objects in each render!',
         context
       );
+      return createEmptyVNode()
     }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
+    // object syntax in v-bind
+    if (isDef(data) && isDef(data.is)) {
+      tag = data.is;
     }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if ("development" !== 'production' && !isObject(bindObject)) {
+    if (!tag) {
+      // in case of component :is set to falsy value
+      return createEmptyVNode()
+    }
+    // warn against non-primitive key
+    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+    ) {
+      {
         warn(
-          'slot v-bind without argument expects an Object',
-          this
+          'Avoid using non-primitive value as key, ' +
+          'use string/number value instead.',
+          context
         );
       }
-      props = extend(extend({}, bindObject), props);
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
+    // support single function children as default scoped slot
+    if (Array.isArray(children) &&
+      typeof children[0] === 'function'
+    ) {
+      data = data || {};
+      data.scopedSlots = { default: children[0] };
+      children.length = 0;
+    }
+    if (normalizationType === ALWAYS_NORMALIZE) {
+      children = normalizeChildren(children);
+    } else if (normalizationType === SIMPLE_NORMALIZE) {
+      children = simpleNormalizeChildren(children);
+    }
+    var vnode, ns;
+    if (typeof tag === 'string') {
+      var Ctor;
+      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+      if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+        // component
+        vnode = createComponent(Ctor, data, context, children, tag);
+      } else {
+        // unknown or unlisted namespaced elements
+        // check at runtime because it may get assigned a namespace when its
+        // parent normalizes children
+        vnode = new VNode(
+          tag, data, children,
+          undefined, undefined, context
         );
       }
-      slotNodes._rendered = true;
+    } else {
+      // direct component options / constructor
+      vnode = createComponent(tag, data, context, children);
+    }
+    if (Array.isArray(vnode)) {
+      return vnode
+    } else if (isDef(vnode)) {
+      if (isDef(ns)) { applyNS(vnode, ns); }
+      if (isDef(data)) { registerDeepBindings(data); }
+      return vnode
+    } else {
+      return createEmptyVNode()
     }
-    nodes = slotNodes || fallback;
   }
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
+  function applyNS (vnode, ns, force) {
+    vnode.ns = ns;
+    if (vnode.tag === 'foreignObject') {
+      // use default namespace inside foreignObject
+      ns = undefined;
+      force = true;
+    }
+    if (isDef(vnode.children)) {
+      for (var i = 0, l = vnode.children.length; i < l; i++) {
+        var child = vnode.children[i];
+        if (isDef(child.tag) && (
+          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+          applyNS(child, ns, force);
+        }
+      }
+    }
   }
-}
 
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+  // ref #5318
+  // necessary to ensure parent re-render when deep bindings like :style and
+  // :class are used on slot nodes
+  function registerDeepBindings (data) {
+    if (isObject(data.style)) {
+      traverse(data.style);
+    }
+    if (isObject(data.class)) {
+      traverse(data.class);
+    }
+  }
 
-/*  */
+  /*  */
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      "development" !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
+  /**
+   * Runtime helper for rendering v-for lists.
+   */
+  function renderList (
+    val,
+    render
+  ) {
+    var ret, i, l, keys, key;
+    if (Array.isArray(val) || typeof val === 'string') {
+      ret = new Array(val.length);
+      for (i = 0, l = val.length; i < l; i++) {
+        ret[i] = render(val[i], i);
       }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
+    } else if (typeof val === 'number') {
+      ret = new Array(val);
+      for (i = 0; i < val; i++) {
+        ret[i] = render(i + 1, i);
+      }
+    } else if (isObject(val)) {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
+    }
+    if (isDef(ret)) {
+      (ret)._isVList = true;
     }
+    return ret
   }
-  return data
-}
 
-/*  */
+  /*  */
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
+  /**
+   * Runtime helper for rendering <slot>
+   */
+  function renderSlot (
+    name,
+    fallback,
+    props,
+    bindObject
+  ) {
+    var scopedSlotFn = this.$scopedSlots[name];
+    var nodes;
+    if (scopedSlotFn) { // scoped slot
+      props = props || {};
+      if (bindObject) {
+        if (!isObject(bindObject)) {
+          warn(
+            'slot v-bind without argument expects an Object',
+            this
+          );
+        }
+        props = extend(extend({}, bindObject), props);
       }
+      nodes = scopedSlotFn(props) || fallback;
+    } else {
+      nodes = this.$slots[name] || fallback;
+    }
+
+    var target = props && props.slot;
+    if (target) {
+      return this.$createElement('template', { slot: target }, nodes)
+    } else {
+      return nodes
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
   }
-}
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
+  /*  */
+
+  /**
+   * Runtime helper for resolving filters
+   */
+  function resolveFilter (id) {
+    return resolveAsset(this.$options, 'filters', id, true) || identity
+  }
 
-/*  */
+  /*  */
 
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      "development" !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
+  function isKeyNotMatch (expect, actual) {
+    if (Array.isArray(expect)) {
+      return expect.indexOf(actual) === -1
     } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
+      return expect !== actual
     }
   }
-  return data
-}
 
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
+  /**
+   * Runtime helper for checking keyCodes from config.
+   * exposed as Vue.prototype._k
+   * passing in eventKeyName as last argument separately for backwards compat
+   */
+  function checkKeyCodes (
+    eventKeyCode,
+    key,
+    builtInKeyCode,
+    eventKeyName,
+    builtInKeyName
+  ) {
+    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+      return isKeyNotMatch(builtInKeyName, eventKeyName)
+    } else if (mappedKeyCode) {
+      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+    } else if (eventKeyName) {
+      return hyphenate(eventKeyName) !== key
+    }
+  }
 
-/*  */
+  /*  */
 
+  /**
+   * Runtime helper for merging v-bind="object" into a VNode's data.
+   */
+  function bindObjectProps (
+    data,
+    tag,
+    value,
+    asProp,
+    isSync
+  ) {
+    if (value) {
+      if (!isObject(value)) {
+        warn(
+          'v-bind without argument expects an Object or Array value',
+          this
+        );
+      } else {
+        if (Array.isArray(value)) {
+          value = toObject(value);
+        }
+        var hash;
+        var loop = function ( key ) {
+          if (
+            key === 'class' ||
+            key === 'style' ||
+            isReservedAttribute(key)
+          ) {
+            hash = data;
+          } else {
+            var type = data.attrs && data.attrs.type;
+            hash = asProp || config.mustUseProp(tag, type, key)
+              ? data.domProps || (data.domProps = {})
+              : data.attrs || (data.attrs = {});
+          }
+          var camelizedKey = camelize(key);
+          if (!(key in hash) && !(camelizedKey in hash)) {
+            hash[key] = value[key];
+
+            if (isSync) {
+              var on = data.on || (data.on = {});
+              on[("update:" + camelizedKey)] = function ($event) {
+                value[key] = $event;
+              };
+            }
+          }
+        };
 
+        for (var key in value) loop( key );
+      }
+    }
+    return data
+  }
 
+  /*  */
 
+  /**
+   * Runtime helper for rendering static trees.
+   */
+  function renderStatic (
+    index,
+    isInFor
+  ) {
+    var cached = this._staticTrees || (this._staticTrees = []);
+    var tree = cached[index];
+    // if has already-rendered static tree and not inside v-for,
+    // we can reuse the same tree.
+    if (tree && !isInFor) {
+      return tree
+    }
+    // otherwise, render a fresh tree.
+    tree = cached[index] = this.$options.staticRenderFns[index].call(
+      this._renderProxy,
+      null,
+      this // for render fns generated for functional component templates
+    );
+    markStatic(tree, ("__static__" + index), false);
+    return tree
+  }
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
+  /**
+   * Runtime helper for v-once.
+   * Effectively it means marking the node as static with a unique key.
+   */
+  function markOnce (
+    tree,
+    index,
+    key
+  ) {
+    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+    return tree
+  }
 
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(("Injection \"" + key + "\" not found"), vm);
+  function markStatic (
+    tree,
+    key,
+    isOnce
+  ) {
+    if (Array.isArray(tree)) {
+      for (var i = 0; i < tree.length; i++) {
+        if (tree[i] && typeof tree[i] !== 'string') {
+          markStaticNode(tree[i], (key + "_" + i), isOnce);
         }
       }
+    } else {
+      markStaticNode(tree, key, isOnce);
     }
-    return result
   }
-}
-
-/*  */
-
-
 
+  function markStaticNode (node, key, isOnce) {
+    node.isStatic = true;
+    node.key = key;
+    node.isOnce = isOnce;
+  }
 
+  /*  */
 
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
+  function bindObjectListeners (data, value) {
+    if (value) {
+      if (!isPlainObject(value)) {
+        warn(
+          'v-on without argument expects an Object value',
+          this
+        );
+      } else {
+        var on = data.on = data.on ? extend({}, data.on) : {};
+        for (var key in value) {
+          var existing = on[key];
+          var ours = value[key];
+          on[key] = existing ? [].concat(existing, ours) : ours;
+        }
+      }
+    }
+    return data
+  }
+
+  /*  */
+
+  function installRenderHelpers (target) {
+    target._o = markOnce;
+    target._n = toNumber;
+    target._s = toString;
+    target._l = renderList;
+    target._t = renderSlot;
+    target._q = looseEqual;
+    target._i = looseIndexOf;
+    target._m = renderStatic;
+    target._f = resolveFilter;
+    target._k = checkKeyCodes;
+    target._b = bindObjectProps;
+    target._v = createTextVNode;
+    target._e = createEmptyVNode;
+    target._u = resolveScopedSlots;
+    target._g = bindObjectListeners;
+  }
+
+  /*  */
+
+  /*  */
+
+  function resolveInject (inject, vm) {
+    if (inject) {
+      // inject is :any because flow is not smart enough to figure out cached
+      var result = Object.create(null);
+      var keys = hasSymbol
+        ? Reflect.ownKeys(inject).filter(function (key) {
+          /* istanbul ignore next */
+          return Object.getOwnPropertyDescriptor(inject, key).enumerable
+        })
+        : Object.keys(inject);
+
+      for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        var provideKey = inject[key].from;
+        var source = vm;
+        while (source) {
+          if (source._provided && hasOwn(source._provided, provideKey)) {
+            result[key] = source._provided[provideKey];
+            break
+          }
+          source = source.$parent;
+        }
+        if (!source) {
+          if ('default' in inject[key]) {
+            var provideDefault = inject[key].default;
+            result[key] = typeof provideDefault === 'function'
+              ? provideDefault.call(vm)
+              : provideDefault;
+          } else {
+            warn(("Injection \"" + key + "\" not found"), vm);
+          }
+        }
       }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
+      return result
+    }
+  }
+
+  /*  */
+
+  function resolveConstructorOptions (Ctor) {
+    var options = Ctor.options;
+    if (Ctor.super) {
+      var superOptions = resolveConstructorOptions(Ctor.super);
+      var cachedSuperOptions = Ctor.superOptions;
+      if (superOptions !== cachedSuperOptions) {
+        // super option changed,
+        // need to resolve new options.
+        Ctor.superOptions = superOptions;
+        // check if there are any late-modified/attached options (#4976)
+        var modifiedOptions = resolveModifiedOptions(Ctor);
+        // update base extend options
+        if (modifiedOptions) {
+          extend(Ctor.extendOptions, modifiedOptions);
+        }
+        options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+        if (options.name) {
+          options.components[options.name] = Ctor;
+        }
       }
     }
+    return options
   }
-  return options
-}
 
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+  function resolveModifiedOptions (Ctor) {
+    var modified;
+    var latest = Ctor.options;
+    var extended = Ctor.extendOptions;
+    var sealed = Ctor.sealedOptions;
+    for (var key in latest) {
+      if (latest[key] !== sealed[key]) {
+        if (!modified) { modified = {}; }
+        modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      }
     }
+    return modified
   }
-  return modified
-}
 
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
+  function dedupe (latest, extended, sealed) {
+    // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+    // between merges
+    if (Array.isArray(latest)) {
+      var res = [];
+      sealed = Array.isArray(sealed) ? sealed : [sealed];
+      extended = Array.isArray(extended) ? extended : [extended];
+      for (var i = 0; i < latest.length; i++) {
+        // push original options and not sealed options to exclude duplicated options
+        if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+          res.push(latest[i]);
+        }
       }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+      return res
+    } else {
+      return latest
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
   }
 
-  var renderContext = new FunctionalRenderContext(
+  /*  */
+
+  function FunctionalRenderContext (
     data,
     props,
     children,
-    contextVm,
+    parent,
     Ctor
-  );
+  ) {
+    var options = Ctor.options;
+    // ensure the createElement function in functional components
+    // gets a unique context - this is necessary for correct named slot check
+    var contextVm;
+    if (hasOwn(parent, '_uid')) {
+      contextVm = Object.create(parent);
+      // $flow-disable-line
+      contextVm._original = parent;
+    } else {
+      // the context vm passed in is a functional context as well.
+      // in this case we want to make sure we are able to get a hold to the
+      // real context instance.
+      contextVm = parent;
+      // $flow-disable-line
+      parent = parent._original;
+    }
+    var isCompiled = isTrue(options._compiled);
+    var needNormalization = !isCompiled;
+
+    this.data = data;
+    this.props = props;
+    this.children = children;
+    this.parent = parent;
+    this.listeners = data.on || emptyObject;
+    this.injections = resolveInject(options.inject, parent);
+    this.slots = function () { return resolveSlots(children, parent); };
+
+    // support for compiled functional template
+    if (isCompiled) {
+      // exposing $options for renderStatic()
+      this.$options = options;
+      // pre-resolve slots for renderSlot()
+      this.$slots = this.slots();
+      this.$scopedSlots = data.scopedSlots || emptyObject;
+    }
+
+    if (options._scopeId) {
+      this._c = function (a, b, c, d) {
+        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+        if (vnode && !Array.isArray(vnode)) {
+          vnode.fnScopeId = options._scopeId;
+          vnode.fnContext = parent;
+        }
+        return vnode
+      };
+    } else {
+      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+    }
+  }
 
-  var vnode = options.render.call(null, renderContext._c, renderContext);
+  installRenderHelpers(FunctionalRenderContext.prototype);
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+  function createFunctionalComponent (
+    Ctor,
+    propsData,
+    data,
+    contextVm,
+    children
+  ) {
+    var options = Ctor.options;
+    var props = {};
+    var propOptions = options.props;
+    if (isDef(propOptions)) {
+      for (var key in propOptions) {
+        props[key] = validateProp(key, propOptions, propsData || emptyObject);
+      }
+    } else {
+      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+      if (isDef(data.props)) { mergeProps(props, data.props); }
+    }
+
+    var renderContext = new FunctionalRenderContext(
+      data,
+      props,
+      children,
+      contextVm,
+      Ctor
+    );
+
+    var vnode = options.render.call(null, renderContext._c, renderContext);
+
+    if (vnode instanceof VNode) {
+      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+    } else if (Array.isArray(vnode)) {
+      var vnodes = normalizeChildren(vnode) || [];
+      var res = new Array(vnodes.length);
+      for (var i = 0; i < vnodes.length; i++) {
+        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+      }
+      return res
     }
-    return res
   }
-}
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
+  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+    // #7817 clone node before setting fnContext, otherwise if the node is reused
+    // (e.g. it was from a cached normal slot) the fnContext causes named slots
+    // that should not be matched to match.
+    var clone = cloneVNode(vnode);
+    clone.fnContext = contextVm;
+    clone.fnOptions = options;
+    {
+      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+    }
+    if (data.slot) {
+      (clone.data || (clone.data = {})).slot = data.slot;
+    }
+    return clone
   }
-  return clone
-}
 
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+  function mergeProps (to, from) {
+    for (var key in from) {
+      to[camelize(key)] = from[key];
+    }
   }
-}
 
-/*  */
+  /*  */
 
+  /*  */
 
+  /*  */
 
+  /*  */
 
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
+  // inline hooks to be invoked on component VNodes during patch
+  var componentVNodeHooks = {
+    init: function init (vnode, hydrating) {
+      if (
+        vnode.componentInstance &&
+        !vnode.componentInstance._isDestroyed &&
+        vnode.data.keepAlive
+      ) {
+        // kept-alive components, treat as a patch
+        var mountedNode = vnode; // work around flow
+        componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      } else {
+        var child = vnode.componentInstance = createComponentInstanceForVnode(
+          vnode,
+          activeInstance
+        );
+        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+      }
+    },
 
+    prepatch: function prepatch (oldVnode, vnode) {
+      var options = vnode.componentOptions;
+      var child = vnode.componentInstance = oldVnode.componentInstance;
+      updateChildComponent(
+        child,
+        options.propsData, // updated props
+        options.listeners, // updated listeners
+        vnode, // new parent vnode
+        options.children // new children
+      );
+    },
 
-// Updates the state of the component to weex native render engine.
+    insert: function insert (vnode) {
+      var context = vnode.context;
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isMounted) {
+        componentInstance._isMounted = true;
+        callHook(componentInstance, 'mounted');
+      }
+      if (vnode.data.keepAlive) {
+        if (context._isMounted) {
+          // vue-router#1212
+          // During updates, a kept-alive component's child components may
+          // change, so directly walking the tree here may call activated hooks
+          // on incorrect children. Instead we push them into a queue which will
+          // be processed after the whole patch process ended.
+          queueActivatedComponent(componentInstance);
+        } else {
+          activateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    },
 
-/*  */
+    destroy: function destroy (vnode) {
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isDestroyed) {
+        if (!vnode.data.keepAlive) {
+          componentInstance.$destroy();
+        } else {
+          deactivateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    }
+  };
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
+  var hooksToMerge = Object.keys(componentVNodeHooks);
 
-// listening on native callback
+  function createComponent (
+    Ctor,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    if (isUndef(Ctor)) {
+      return
+    }
 
-/*  */
+    var baseCtor = context.$options._base;
 
-/*  */
+    // plain options object: turn it into a constructor
+    if (isObject(Ctor)) {
+      Ctor = baseCtor.extend(Ctor);
+    }
 
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
+    // if at this stage it's not a constructor or an async component factory,
+    // reject.
+    if (typeof Ctor !== 'function') {
+      {
+        warn(("Invalid Component definition: " + (String(Ctor))), context);
       }
+      return
     }
-  },
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
+    // async component
+    var asyncFactory;
+    if (isUndef(Ctor.cid)) {
+      asyncFactory = Ctor;
+      Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+      if (Ctor === undefined) {
+        // return a placeholder node for async component, which is rendered
+        // as a comment node but preserves all the raw information for the node.
+        // the information will be used for async server-rendering and hydration.
+        return createAsyncPlaceholder(
+          asyncFactory,
+          data,
+          context,
+          children,
+          tag
+        )
       }
     }
-  }
-};
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
+    data = data || {};
 
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
+    // resolve constructor options in case global mixins are applied after
+    // component constructor creation
+    resolveConstructorOptions(Ctor);
 
-  var baseCtor = context.$options._base;
+    // transform component v-model data into props & events
+    if (isDef(data.model)) {
+      transformModel(Ctor.options, data);
+    }
 
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
+    // extract props
+    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+    // functional component
+    if (isTrue(Ctor.options.functional)) {
+      return createFunctionalComponent(Ctor, propsData, data, context, children)
     }
-  }
 
-  data = data || {};
+    // extract listeners, since these needs to be treated as
+    // child component listeners instead of DOM listeners
+    var listeners = data.on;
+    // replace with listeners with .native modifier
+    // so it gets processed during parent component patch.
+    data.on = data.nativeOn;
 
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
+    if (isTrue(Ctor.options.abstract)) {
+      // abstract components do not keep anything
+      // other than props & listeners & slot
 
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
+      // work around flow
+      var slot = data.slot;
+      data = {};
+      if (slot) {
+        data.slot = slot;
+      }
+    }
 
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+    // install component management hooks onto the placeholder node
+    installComponentHooks(data);
 
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
+    // return a placeholder vnode
+    var name = Ctor.options.name || tag;
+    var vnode = new VNode(
+      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+      data, undefined, undefined, undefined, context,
+      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+      asyncFactory
+    );
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
+    return vnode
+  }
 
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
+  function createComponentInstanceForVnode (
+    vnode, // we know it's MountedComponentVNode but flow doesn't
+    parent // activeInstance in lifecycle state
+  ) {
+    var options = {
+      _isComponent: true,
+      _parentVnode: vnode,
+      parent: parent
+    };
+    // check inline-template render functions
+    var inlineTemplate = vnode.data.inlineTemplate;
+    if (isDef(inlineTemplate)) {
+      options.render = inlineTemplate.render;
+      options.staticRenderFns = inlineTemplate.staticRenderFns;
+    }
+    return new vnode.componentOptions.Ctor(options)
+  }
+
+  function installComponentHooks (data) {
+    var hooks = data.hook || (data.hook = {});
+    for (var i = 0; i < hooksToMerge.length; i++) {
+      var key = hooksToMerge[i];
+      var existing = hooks[key];
+      var toMerge = componentVNodeHooks[key];
+      if (existing !== toMerge && !(existing && existing._merged)) {
+        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+      }
+    }
+  }
 
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+  function mergeHook$1 (f1, f2) {
+    var merged = function (a, b) {
+      // flow complains about extra args which is why we use any
+      f1(a, b);
+      f2(a, b);
+    };
+    merged._merged = true;
+    return merged
+  }
+
+  // transform component v-model info (value and callback) into
+  // prop and event handler respectively.
+  function transformModel (options, data) {
+    var prop = (options.model && options.model.prop) || 'value';
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.props || (data.props = {}))[prop] = data.model.value;
+    var on = data.on || (data.on = {});
+    var existing = on[event];
+    var callback = data.model.callback;
+    if (isDef(existing)) {
+      if (
+        Array.isArray(existing)
+          ? existing.indexOf(callback) === -1
+          : existing !== callback
+      ) {
+        on[event] = [callback].concat(existing);
+      }
+    } else {
+      on[event] = callback;
     }
   }
 
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
+  /*  */
 
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
+  var warned = Object.create(null);
+  var warnOnce = function (msg) {
+    if (!warned[msg]) {
+      warned[msg] = true;
+      console.warn(("\n\u001b[31m" + msg + "\u001b[39m\n"));
+    }
+  };
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
+  var onCompilationError = function (err, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
+    throw new Error(("\n\u001b[31m" + err + trace + "\u001b[39m\n"))
   };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
+
+  var normalizeRender = function (vm) {
+    var ref = vm.$options;
+    var render = ref.render;
+    var template = ref.template;
+    var _scopeId = ref._scopeId;
+    if (isUndef(render)) {
+      if (template) {
+        var compiled = compileToFunctions(template, {
+          scopeId: _scopeId,
+          warn: onCompilationError
+        }, vm);
+
+        vm.$options.render = compiled.render;
+        vm.$options.staticRenderFns = compiled.staticRenderFns;
+      } else {
+        throw new Error(
+          ("render function or template not defined in component: " + (vm.$options.name || vm.$options._componentTag || 'anonymous'))
+        )
+      }
+    }
   };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-var warned = Object.create(null);
-var warnOnce = function (msg) {
-  if (!warned[msg]) {
-    warned[msg] = true;
-    console.warn(("\n\u001b[31m" + msg + "\u001b[39m\n"));
-  }
-};
-
-var onCompilationError = function (err, vm) {
-  var trace = vm ? generateComponentTrace(vm) : '';
-  throw new Error(("\n\u001b[31m" + err + trace + "\u001b[39m\n"))
-};
-
-var normalizeRender = function (vm) {
-  var ref = vm.$options;
-  var render = ref.render;
-  var template = ref.template;
-  var _scopeId = ref._scopeId;
-  if (isUndef(render)) {
-    if (template) {
-      var compiled = compileToFunctions(template, {
-        scopeId: _scopeId,
-        warn: onCompilationError
-      }, vm);
-
-      vm.$options.render = compiled.render;
-      vm.$options.staticRenderFns = compiled.staticRenderFns;
+
+  function renderNode (node, isRoot, context) {
+    if (node.isString) {
+      renderStringNode$1(node, context);
+    } else if (isDef(node.componentOptions)) {
+      renderComponent(node, isRoot, context);
+    } else if (isDef(node.tag)) {
+      renderElement(node, isRoot, context);
+    } else if (isTrue(node.isComment)) {
+      if (isDef(node.asyncFactory)) {
+        // async component
+        renderAsyncComponent(node, isRoot, context);
+      } else {
+        context.write(("<!--" + (node.text) + "-->"), context.next);
+      }
     } else {
-      throw new Error(
-        ("render function or template not defined in component: " + (vm.$options.name || vm.$options._componentTag || 'anonymous'))
-      )
+      context.write(
+        node.raw ? node.text : escape(String(node.text)),
+        context.next
+      );
     }
   }
-};
 
-function renderNode (node, isRoot, context) {
-  if (node.isString) {
-    renderStringNode$1(node, context);
-  } else if (isDef(node.componentOptions)) {
-    renderComponent(node, isRoot, context);
-  } else if (isDef(node.tag)) {
-    renderElement(node, isRoot, context);
-  } else if (isTrue(node.isComment)) {
-    if (isDef(node.asyncFactory)) {
-      // async component
-      renderAsyncComponent(node, isRoot, context);
-    } else {
-      context.write(("<!--" + (node.text) + "-->"), context.next);
+  function registerComponentForCache (options, write) {
+    // exposed by vue-loader, need to call this if cache hit because
+    // component lifecycle hooks will not be called.
+    var register = options._ssrRegister;
+    if (write.caching && isDef(register)) {
+      write.componentBuffer[write.componentBuffer.length - 1].add(register);
     }
-  } else {
-    context.write(
-      node.raw ? node.text : escape(String(node.text)),
-      context.next
-    );
+    return register
   }
-}
-
-function registerComponentForCache (options, write) {
-  // exposed by vue-loader, need to call this if cache hit because
-  // component lifecycle hooks will not be called.
-  var register = options._ssrRegister;
-  if (write.caching && isDef(register)) {
-    write.componentBuffer[write.componentBuffer.length - 1].add(register);
-  }
-  return register
-}
-
-function renderComponent (node, isRoot, context) {
-  var write = context.write;
-  var next = context.next;
-  var userContext = context.userContext;
-
-  // check cache hit
-  var Ctor = node.componentOptions.Ctor;
-  var getKey = Ctor.options.serverCacheKey;
-  var name = Ctor.options.name;
-  var cache = context.cache;
-  var registerComponent = registerComponentForCache(Ctor.options, write);
-
-  if (isDef(getKey) && isDef(cache) && isDef(name)) {
-    var key = name + '::' + getKey(node.componentOptions.propsData);
-    var has = context.has;
-    var get = context.get;
-    if (isDef(has)) {
-      has(key, function (hit) {
-        if (hit === true && isDef(get)) {
-          get(key, function (res) {
+
+  function renderComponent (node, isRoot, context) {
+    var write = context.write;
+    var next = context.next;
+    var userContext = context.userContext;
+
+    // check cache hit
+    var Ctor = node.componentOptions.Ctor;
+    var getKey = Ctor.options.serverCacheKey;
+    var name = Ctor.options.name;
+    var cache = context.cache;
+    var registerComponent = registerComponentForCache(Ctor.options, write);
+
+    if (isDef(getKey) && isDef(cache) && isDef(name)) {
+      var key = name + '::' + getKey(node.componentOptions.propsData);
+      var has = context.has;
+      var get = context.get;
+      if (isDef(has)) {
+        has(key, function (hit) {
+          if (hit === true && isDef(get)) {
+            get(key, function (res) {
+              if (isDef(registerComponent)) {
+                registerComponent(userContext);
+              }
+              res.components.forEach(function (register) { return register(userContext); });
+              write(res.html, next);
+            });
+          } else {
+            renderComponentWithCache(node, isRoot, key, context);
+          }
+        });
+      } else if (isDef(get)) {
+        get(key, function (res) {
+          if (isDef(res)) {
             if (isDef(registerComponent)) {
               registerComponent(userContext);
             }
             res.components.forEach(function (register) { return register(userContext); });
             write(res.html, next);
-          });
-        } else {
-          renderComponentWithCache(node, isRoot, key, context);
-        }
-      });
-    } else if (isDef(get)) {
-      get(key, function (res) {
-        if (isDef(res)) {
-          if (isDef(registerComponent)) {
-            registerComponent(userContext);
+          } else {
+            renderComponentWithCache(node, isRoot, key, context);
           }
-          res.components.forEach(function (register) { return register(userContext); });
-          write(res.html, next);
-        } else {
-          renderComponentWithCache(node, isRoot, key, context);
-        }
-      });
-    }
-  } else {
-    if (isDef(getKey) && isUndef(cache)) {
-      warnOnce(
-        "[vue-server-renderer] Component " + (Ctor.options.name || '(anonymous)') + " implemented serverCacheKey, " +
-        'but no cache was provided to the renderer.'
-      );
-    }
-    if (isDef(getKey) && isUndef(name)) {
-      warnOnce(
-        "[vue-server-renderer] Components that implement \"serverCacheKey\" " +
-        "must also define a unique \"name\" option."
-      );
+        });
+      }
+    } else {
+      if (isDef(getKey) && isUndef(cache)) {
+        warnOnce(
+          "[vue-server-renderer] Component " + (Ctor.options.name || '(anonymous)') + " implemented serverCacheKey, " +
+          'but no cache was provided to the renderer.'
+        );
+      }
+      if (isDef(getKey) && isUndef(name)) {
+        warnOnce(
+          "[vue-server-renderer] Components that implement \"serverCacheKey\" " +
+          "must also define a unique \"name\" option."
+        );
+      }
+      renderComponentInner(node, isRoot, context);
     }
-    renderComponentInner(node, isRoot, context);
   }
-}
-
-function renderComponentWithCache (node, isRoot, key, context) {
-  var write = context.write;
-  write.caching = true;
-  var buffer = write.cacheBuffer;
-  var bufferIndex = buffer.push('') - 1;
-  var componentBuffer = write.componentBuffer;
-  componentBuffer.push(new Set());
-  context.renderStates.push({
-    type: 'ComponentWithCache',
-    key: key,
-    buffer: buffer,
-    bufferIndex: bufferIndex,
-    componentBuffer: componentBuffer
-  });
-  renderComponentInner(node, isRoot, context);
-}
-
-function renderComponentInner (node, isRoot, context) {
-  var prevActive = context.activeInstance;
-  // expose userContext on vnode
-  node.ssrContext = context.userContext;
-  var child = context.activeInstance = createComponentInstanceForVnode(
-    node,
-    context.activeInstance
-  );
-  normalizeRender(child);
-  var childNode = child._render();
-  childNode.parent = node;
-  context.renderStates.push({
-    type: 'Component',
-    prevActive: prevActive
-  });
-  renderNode(childNode, isRoot, context);
-}
 
-function renderAsyncComponent (node, isRoot, context) {
-  var factory = node.asyncFactory;
+  function renderComponentWithCache (node, isRoot, key, context) {
+    var write = context.write;
+    write.caching = true;
+    var buffer = write.cacheBuffer;
+    var bufferIndex = buffer.push('') - 1;
+    var componentBuffer = write.componentBuffer;
+    componentBuffer.push(new Set());
+    context.renderStates.push({
+      type: 'ComponentWithCache',
+      key: key,
+      buffer: buffer,
+      bufferIndex: bufferIndex,
+      componentBuffer: componentBuffer
+    });
+    renderComponentInner(node, isRoot, context);
+  }
 
-  var resolve = function (comp) {
-    if (comp.__esModule && comp.default) {
-      comp = comp.default;
-    }
-    var ref = node.asyncMeta;
-    var data = ref.data;
-    var children = ref.children;
-    var tag = ref.tag;
-    var nodeContext = node.asyncMeta.context;
-    var resolvedNode = createComponent(
-      comp,
-      data,
-      nodeContext,
-      children,
-      tag
+  function renderComponentInner (node, isRoot, context) {
+    var prevActive = context.activeInstance;
+    // expose userContext on vnode
+    node.ssrContext = context.userContext;
+    var child = context.activeInstance = createComponentInstanceForVnode(
+      node,
+      context.activeInstance
     );
-    if (resolvedNode) {
-      if (resolvedNode.componentOptions) {
-        // normal component
-        renderComponent(resolvedNode, isRoot, context);
-      } else if (!Array.isArray(resolvedNode)) {
-        // single return node from functional component
-        renderNode(resolvedNode, isRoot, context);
+    normalizeRender(child);
+    var childNode = child._render();
+    childNode.parent = node;
+    context.renderStates.push({
+      type: 'Component',
+      prevActive: prevActive
+    });
+    renderNode(childNode, isRoot, context);
+  }
+
+  function renderAsyncComponent (node, isRoot, context) {
+    var factory = node.asyncFactory;
+
+    var resolve = function (comp) {
+      if (comp.__esModule && comp.default) {
+        comp = comp.default;
+      }
+      var ref = node.asyncMeta;
+      var data = ref.data;
+      var children = ref.children;
+      var tag = ref.tag;
+      var nodeContext = node.asyncMeta.context;
+      var resolvedNode = createComponent(
+        comp,
+        data,
+        nodeContext,
+        children,
+        tag
+      );
+      if (resolvedNode) {
+        if (resolvedNode.componentOptions) {
+          // normal component
+          renderComponent(resolvedNode, isRoot, context);
+        } else if (!Array.isArray(resolvedNode)) {
+          // single return node from functional component
+          renderNode(resolvedNode, isRoot, context);
+        } else {
+          // multiple return nodes from functional component
+          context.renderStates.push({
+            type: 'Fragment',
+            children: resolvedNode,
+            rendered: 0,
+            total: resolvedNode.length
+          });
+          context.next();
+        }
       } else {
-        // multiple return nodes from functional component
-        context.renderStates.push({
-          type: 'Fragment',
-          children: resolvedNode,
-          rendered: 0,
-          total: resolvedNode.length
-        });
-        context.next();
+        // invalid component, but this does not throw on the client
+        // so render empty comment node
+        context.write("<!---->", context.next);
       }
-    } else {
-      // invalid component, but this does not throw on the client
-      // so render empty comment node
-      context.write("<!---->", context.next);
+    };
+
+    if (factory.resolved) {
+      resolve(factory.resolved);
+      return
     }
-  };
 
-  if (factory.resolved) {
-    resolve(factory.resolved);
-    return
+    var reject = context.done;
+    var res;
+    try {
+      res = factory(resolve, reject);
+    } catch (e) {
+      reject(e);
+    }
+    if (res) {
+      if (typeof res.then === 'function') {
+        res.then(resolve, reject).catch(reject);
+      } else {
+        // new syntax in 2.3
+        var comp = res.component;
+        if (comp && typeof comp.then === 'function') {
+          comp.then(resolve, reject).catch(reject);
+        }
+      }
+    }
   }
 
-  var reject = context.done;
-  var res;
-  try {
-    res = factory(resolve, reject);
-  } catch (e) {
-    reject(e);
-  }
-  if (res) {
-    if (typeof res.then === 'function') {
-      res.then(resolve, reject).catch(reject);
+  function renderStringNode$1 (el, context) {
+    var write = context.write;
+    var next = context.next;
+    if (isUndef(el.children) || el.children.length === 0) {
+      write(el.open + (el.close || ''), next);
     } else {
-      // new syntax in 2.3
-      var comp = res.component;
-      if (comp && typeof comp.then === 'function') {
-        comp.then(resolve, reject).catch(reject);
-      }
+      var children = el.children;
+      context.renderStates.push({
+        type: 'Element',
+        children: children,
+        rendered: 0,
+        total: children.length,
+        endTag: el.close
+      });
+      write(el.open, next);
     }
   }
-}
 
-function renderStringNode$1 (el, context) {
-  var write = context.write;
-  var next = context.next;
-  if (isUndef(el.children) || el.children.length === 0) {
-    write(el.open + (el.close || ''), next);
-  } else {
-    var children = el.children;
-    context.renderStates.push({
-      type: 'Element',
-      children: children,
-      rendered: 0,
-      total: children.length,
-      endTag: el.close
-    });
-    write(el.open, next);
-  }
-}
+  function renderElement (el, isRoot, context) {
+    var write = context.write;
+    var next = context.next;
 
-function renderElement (el, isRoot, context) {
-  var write = context.write;
-  var next = context.next;
+    if (isTrue(isRoot)) {
+      if (!el.data) { el.data = {}; }
+      if (!el.data.attrs) { el.data.attrs = {}; }
+      el.data.attrs[SSR_ATTR] = 'true';
+    }
 
-  if (isTrue(isRoot)) {
-    if (!el.data) { el.data = {}; }
-    if (!el.data.attrs) { el.data.attrs = {}; }
-    el.data.attrs[SSR_ATTR] = 'true';
-  }
+    if (el.fnOptions) {
+      registerComponentForCache(el.fnOptions, write);
+    }
 
-  if (el.fnOptions) {
-    registerComponentForCache(el.fnOptions, write);
+    var startTag = renderStartingTag(el, context);
+    var endTag = "</" + (el.tag) + ">";
+    if (context.isUnaryTag(el.tag)) {
+      write(startTag, next);
+    } else if (isUndef(el.children) || el.children.length === 0) {
+      write(startTag + endTag, next);
+    } else {
+      var children = el.children;
+      context.renderStates.push({
+        type: 'Element',
+        children: children,
+        rendered: 0,
+        total: children.length,
+        endTag: endTag
+      });
+      write(startTag, next);
+    }
   }
 
-  var startTag = renderStartingTag(el, context);
-  var endTag = "</" + (el.tag) + ">";
-  if (context.isUnaryTag(el.tag)) {
-    write(startTag, next);
-  } else if (isUndef(el.children) || el.children.length === 0) {
-    write(startTag + endTag, next);
-  } else {
-    var children = el.children;
-    context.renderStates.push({
-      type: 'Element',
-      children: children,
-      rendered: 0,
-      total: children.length,
-      endTag: endTag
-    });
-    write(startTag, next);
+  function hasAncestorData (node) {
+    var parentNode = node.parent;
+    return isDef(parentNode) && (isDef(parentNode.data) || hasAncestorData(parentNode))
   }
-}
 
-function hasAncestorData (node) {
-  var parentNode = node.parent;
-  return isDef(parentNode) && (isDef(parentNode.data) || hasAncestorData(parentNode))
-}
+  function getVShowDirectiveInfo (node) {
+    var dir;
+    var tmp;
 
-function getVShowDirectiveInfo (node) {
-  var dir;
-  var tmp;
-
-  while (isDef(node)) {
-    if (node.data && node.data.directives) {
-      tmp = node.data.directives.find(function (dir) { return dir.name === 'show'; });
-      if (tmp) {
-        dir = tmp;
+    while (isDef(node)) {
+      if (node.data && node.data.directives) {
+        tmp = node.data.directives.find(function (dir) { return dir.name === 'show'; });
+        if (tmp) {
+          dir = tmp;
+        }
       }
+      node = node.parent;
     }
-    node = node.parent;
-  }
-  return dir
-}
+    return dir
+  }
+
+  function renderStartingTag (node, context) {
+    var markup = "<" + (node.tag);
+    var directives = context.directives;
+    var modules = context.modules;
+
+    // construct synthetic data for module processing
+    // because modules like style also produce code by parent VNode data
+    if (isUndef(node.data) && hasAncestorData(node)) {
+      node.data = {};
+    }
+    if (isDef(node.data)) {
+      // check directives
+      var dirs = node.data.directives;
+      if (dirs) {
+        for (var i = 0; i < dirs.length; i++) {
+          var name = dirs[i].name;
+          if (name !== 'show') {
+            var dirRenderer = resolveAsset(context, 'directives', name, true);
+            if (dirRenderer) {
+              // directives mutate the node's data
+              // which then gets rendered by modules
+              dirRenderer(node, dirs[i]);
+            }
+          }
+        }
+      }
 
-function renderStartingTag (node, context) {
-  var markup = "<" + (node.tag);
-  var directives = context.directives;
-  var modules = context.modules;
+      // v-show directive needs to be merged from parent to child
+      var vshowDirectiveInfo = getVShowDirectiveInfo(node);
+      if (vshowDirectiveInfo) {
+        directives.show(node, vshowDirectiveInfo);
+      }
 
-  // construct synthetic data for module processing
-  // because modules like style also produce code by parent VNode data
-  if (isUndef(node.data) && hasAncestorData(node)) {
-    node.data = {};
-  }
-  if (isDef(node.data)) {
-    // check directives
-    var dirs = node.data.directives;
-    if (dirs) {
-      for (var i = 0; i < dirs.length; i++) {
-        var name = dirs[i].name;
-        var dirRenderer = directives[name];
-        if (dirRenderer && name !== 'show') {
-          // directives mutate the node's data
-          // which then gets rendered by modules
-          dirRenderer(node, dirs[i]);
+      // apply other modules
+      for (var i$1 = 0; i$1 < modules.length; i$1++) {
+        var res = modules[i$1](node);
+        if (res) {
+          markup += res;
         }
       }
     }
-
-    // v-show directive needs to be merged from parent to child
-    var vshowDirectiveInfo = getVShowDirectiveInfo(node);
-    if (vshowDirectiveInfo) {
-      directives.show(node, vshowDirectiveInfo);
+    // attach scoped CSS ID
+    var scopeId;
+    var activeInstance = context.activeInstance;
+    if (isDef(activeInstance) &&
+      activeInstance !== node.context &&
+      isDef(scopeId = activeInstance.$options._scopeId)
+    ) {
+      markup += " " + ((scopeId));
     }
-
-    // apply other modules
-    for (var i$1 = 0; i$1 < modules.length; i$1++) {
-      var res = modules[i$1](node);
-      if (res) {
-        markup += res;
+    if (isDef(node.fnScopeId)) {
+      markup += " " + (node.fnScopeId);
+    } else {
+      while (isDef(node)) {
+        if (isDef(scopeId = node.context.$options._scopeId)) {
+          markup += " " + scopeId;
+        }
+        node = node.parent;
       }
     }
+    return markup + '>'
   }
-  // attach scoped CSS ID
-  var scopeId;
-  var activeInstance = context.activeInstance;
-  if (isDef(activeInstance) &&
-    activeInstance !== node.context &&
-    isDef(scopeId = activeInstance.$options._scopeId)
+
+  function createRenderFunction (
+    modules,
+    directives,
+    isUnaryTag,
+    cache
   ) {
-    markup += " " + ((scopeId));
-  }
-  if (isDef(node.fnScopeId)) {
-    markup += " " + (node.fnScopeId);
-  } else {
-    while (isDef(node)) {
-      if (isDef(scopeId = node.context.$options._scopeId)) {
-        markup += " " + scopeId;
-      }
-      node = node.parent;
+    return function render (
+      component,
+      write,
+      userContext,
+      done
+    ) {
+      warned = Object.create(null);
+      var context = new RenderContext({
+        activeInstance: component,
+        userContext: userContext,
+        write: write, done: done, renderNode: renderNode,
+        isUnaryTag: isUnaryTag, modules: modules, directives: directives,
+        cache: cache
+      });
+      installSSRHelpers(component);
+      normalizeRender(component);
+      renderNode(component._render(), true, context);
     }
   }
-  return markup + '>'
-}
 
-function createRenderFunction (
-  modules,
-  directives,
-  isUnaryTag,
-  cache
-) {
-  return function render (
-    component,
-    write,
-    userContext,
-    done
-  ) {
-    warned = Object.create(null);
-    var context = new RenderContext({
-      activeInstance: component,
-      userContext: userContext,
-      write: write, done: done, renderNode: renderNode,
-      isUnaryTag: isUnaryTag, modules: modules, directives: directives,
-      cache: cache
-    });
-    installSSRHelpers(component);
-    normalizeRender(component);
-    renderNode(component._render(), true, context);
-  }
-}
+  /*  */
 
-/*  */
 
-function createBasicRenderer (ref) {
-  if ( ref === void 0 ) ref = {};
-  var modules = ref.modules; if ( modules === void 0 ) modules = [];
-  var directives = ref.directives; if ( directives === void 0 ) directives = {};
-  var isUnaryTag = ref.isUnaryTag; if ( isUnaryTag === void 0 ) isUnaryTag = (function () { return false; });
-  var cache = ref.cache;
+  function createBasicRenderer (ref) {
+    if ( ref === void 0 ) ref = {};
+    var modules = ref.modules; if ( modules === void 0 ) modules = [];
+    var directives = ref.directives; if ( directives === void 0 ) directives = {};
+    var isUnaryTag = ref.isUnaryTag; if ( isUnaryTag === void 0 ) isUnaryTag = (function () { return false; });
+    var cache = ref.cache;
 
-  var render = createRenderFunction(modules, directives, isUnaryTag, cache);
+    var render = createRenderFunction(modules, directives, isUnaryTag, cache);
 
-  return function renderToString (
-    component,
-    context,
-    done
-  ) {
-    if (typeof context === 'function') {
-      done = context;
-      context = {};
-    }
-    var result = '';
-    var write = createWriteFunction(function (text) {
-      result += text;
-      return false
-    }, done);
-    try {
-      render(component, write, context, function () {
-        done(null, result);
-      });
-    } catch (e) {
-      done(e);
+    return function renderToString (
+      component,
+      context,
+      done
+    ) {
+      if (typeof context === 'function') {
+        done = context;
+        context = {};
+      }
+      var result = '';
+      var write = createWriteFunction(function (text) {
+        result += text;
+        return false
+      }, done);
+      try {
+        render(component, write, context, function () {
+          done(null, result);
+        });
+      } catch (e) {
+        done(e);
+      }
     }
   }
-}
 
-/*  */
+  /*  */
 
-var entryServerBasicRenderer = createBasicRenderer({
-  modules: modules,
-  directives: directives,
-  isUnaryTag: isUnaryTag,
-  canBeLeftOpenTag: canBeLeftOpenTag
-})
+  var entryServerBasicRenderer = createBasicRenderer({
+    modules: modules,
+    directives: directives,
+    isUnaryTag: isUnaryTag,
+    canBeLeftOpenTag: canBeLeftOpenTag
+  });
 
-return entryServerBasicRenderer;
+  return entryServerBasicRenderer;
 
 })));
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 8b11274387e..0b2b0a973af 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -10,8 +10,8 @@ var he = _interopDefault(require('he'));
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
@@ -29,7 +29,7 @@ function isFalse (v) {
 }
 
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -51,7 +51,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -67,8 +67,6 @@ function isPlainObject (obj) {
   return _toString.call(obj) === '[object Object]'
 }
 
-
-
 /**
  * Check if val is a valid array index.
  */
@@ -89,7 +87,7 @@ function toString (val) {
 }
 
 /**
- * Convert a input value to a number for persistence.
+ * Convert an input value to a number for persistence.
  * If the conversion fails, return original string.
  */
 function toNumber (val) {
@@ -121,12 +119,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -138,7 +136,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -180,11 +178,11 @@ var hyphenate = cached(function (str) {
 });
 
 /**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -210,11 +208,6 @@ var bind = Function.prototype.bind
   ? nativeBind
   : polyfillBind;
 
-/**
- * Convert an Array-like object to a real Array.
- */
-
-
 /**
  * Mix properties into target object.
  */
@@ -238,10 +231,12 @@ function toObject (arr) {
   return res
 }
 
+/* eslint-disable no-unused-vars */
+
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -250,13 +245,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -280,6 +277,8 @@ function looseEqual (a, b) {
         return a.length === b.length && a.every(function (e, i) {
           return looseEqual(e, b[i])
         })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
       } else if (!isArrayA && !isArrayB) {
         var keysA = Object.keys(a);
         var keysB = Object.keys(b);
@@ -301,6 +300,11 @@ function looseEqual (a, b) {
   }
 }
 
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
 function looseIndexOf (arr, val) {
   for (var i = 0; i < arr.length; i++) {
     if (looseEqual(arr[i], val)) { return i }
@@ -339,6 +343,11 @@ var isAttr = makeMap(
   'target,title,type,usemap,value,width,wrap'
 );
 
+var unsafeAttrCharRE = /[>/="'\u0009\u000a\u000c\u0020]/; // eslint-disable-line no-control-regex
+var isSSRUnsafeAttr = function (name) {
+  return unsafeAttrCharRE.test(name)
+};
+
 /* istanbul ignore next */
 var isRenderableAttr = function (name) {
   return (
@@ -347,6 +356,7 @@ var isRenderableAttr = function (name) {
     name.indexOf('aria-') === 0
   )
 };
+
 var propsToAttrMap = {
   acceptCharset: 'accept-charset',
   className: 'class',
@@ -397,12 +407,6 @@ var isBooleanAttr = makeMap(
   'truespeed,typemustmatch,visible'
 );
 
-
-
-
-
-
-
 var isFalsyAttrValue = function (val) {
   return val == null || val === false
 };
@@ -429,6 +433,9 @@ function renderAttrs (node) {
   }
 
   for (var key in attrs) {
+    if (isSSRUnsafeAttr(key)) {
+      continue
+    }
     if (key === 'style') {
       // leave it to the style module
       continue
@@ -519,7 +526,10 @@ function cloneVNode (vnode) {
   var cloned = new VNode(
     vnode.tag,
     vnode.data,
-    vnode.children,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
     vnode.text,
     vnode.elm,
     vnode.context,
@@ -586,11 +596,6 @@ function setText (node, text, raw) {
 
 /*  */
 
-/**
- * Check if a string starts with $ or _
- */
-
-
 /**
  * Define a property.
  */
@@ -622,15 +627,11 @@ var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
-
-
 if (inBrowser) {
   try {
     var opts = {};
     Object.defineProperty(opts, 'passive', ({
       get: function get () {
-        /* istanbul ignore next */
-        
       }
     })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
@@ -646,7 +647,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -673,7 +674,7 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  _Set = (function () {
+  _Set = /*@__PURE__*/(function () {
     function Set () {
       this.set = Object.create(null);
     }
@@ -715,6 +716,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -797,11 +800,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -820,9 +829,7 @@ if (process.env.NODE_ENV !== 'production') {
   warn = function (msg, vm) {
     var trace = vm ? generateComponentTrace(vm) : '';
 
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
+    if (hasConsole && (!config.silent)) {
       console.error(("[Vue warn]: " + msg + trace));
     }
   };
@@ -899,7 +906,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -928,6 +934,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if (process.env.NODE_ENV !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -939,13 +951,14 @@ Dep.prototype.notify = function notify () {
 Dep.target = null;
 var targetStack = [];
 
-function pushTarget (_target) {
-  if (Dep.target) { targetStack.push(Dep.target); }
-  Dep.target = _target;
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
 }
 
 function popTarget () {
-  Dep.target = targetStack.pop();
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
 }
 
 /*
@@ -1021,10 +1034,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -1032,14 +1046,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -1055,17 +1069,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -1106,7 +1120,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1154,6 +1168,8 @@ function defineReactive (
       if (process.env.NODE_ENV !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1197,16 +1213,11 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
 
-/**
- * Delete a property and trigger change if necessary.
- */
-
-
 /**
  * Collect dependencies on array elements when the array is touched, since
  * we cannot intercept array element access like property getters.
@@ -1258,7 +1269,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1581,15 +1596,22 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  var extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (var i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
     }
   }
+
   var options = {};
   var key;
   for (key in parent) {
@@ -1642,6 +1664,8 @@ function resolveAsset (
 
 /*  */
 
+
+
 function validateProp (
   key,
   propOptions,
@@ -1678,7 +1702,7 @@ function validateProp (
   if (
     process.env.NODE_ENV !== 'production' &&
     // skip validation for weex recycle-list child component props
-    !(false && isObject(value) && ('@binding' in value))
+    !(false)
   ) {
     assertProp(prop, key, value, vm, absent);
   }
@@ -1751,11 +1775,10 @@ function assertProp (
       valid = assertedType.valid;
     }
   }
+
   if (!valid) {
     warn(
-      "Invalid prop: type check failed for prop \"" + name + "\"." +
-      " Expected " + (expectedTypes.map(capitalize).join(', ')) +
-      ", got " + (toRawType(value)) + ".",
+      getInvalidTypeMessage(name, value, expectedTypes),
       vm
     );
     return
@@ -1822,6 +1845,49 @@ function getTypeIndex (type, expectedTypes) {
   return -1
 }
 
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
 /*  */
 
 function handleError (err, vm, info) {
@@ -1845,13 +1911,6 @@ function handleError (err, vm, info) {
 }
 
 function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
   logError(err, vm, info);
 }
 
@@ -1868,9 +1927,9 @@ function logError (err, vm, info) {
 }
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
+
 function flushCallbacks () {
   var copies = callbacks.slice(0);
   callbacks.length = 0;
@@ -1884,34 +1943,18 @@ function flushCallbacks () {
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  
-} else if (typeof MessageChannel !== 'undefined' && (
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
   channel.port1.onmessage = flushCallbacks;
-  
-} else {
-  /* istanbul ignore next */
-  
 }
 
 // Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  
-} else {
-  // fallback to macro
-  
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
+if (typeof Promise !== 'undefined' && isNative(Promise)) ;
 
 /*  */
 
@@ -1998,8 +2041,6 @@ function stringifyObject (value) {
 
 /*  */
 
-
-
 var isHTMLTag = makeMap(
   'html,body,base,head,link,meta,style,title,' +
   'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
@@ -2040,16 +2081,10 @@ function getTagNamespace (tag) {
   }
 }
 
-
-
 var isTextInputType = makeMap('text,number,password,search,email,tel,url');
 
 /*  */
 
-/**
- * Query an element selector if it's not an element already.
- */
-
 /*  */
 
 function renderClass$1 (node) {
@@ -2159,7 +2194,7 @@ var modules = [
   renderDOMProps,
   renderClass$1,
   renderStyle
-]
+];
 
 /*  */
 
@@ -2220,7 +2255,7 @@ function setSelected (option) {
 var baseDirectives = {
   show: show,
   model: model
-}
+};
 
 /*  */
 
@@ -2247,7 +2282,7 @@ var isNonPhrasingTag = makeMap(
 
 /*  */
 
-var MAX_STACK_DEPTH = 1000;
+var MAX_STACK_DEPTH = 900;
 var noop$1 = function (_) { return _; };
 
 var defer = typeof process !== 'undefined' && process.nextTick
@@ -2308,7 +2343,7 @@ function createWriteFunction (
 
 var stream = require('stream');
 
-var RenderStream = (function (superclass) {
+var RenderStream = /*@__PURE__*/(function (superclass) {
   function RenderStream (render) {
     var this$1 = this;
 
@@ -2390,6 +2425,8 @@ var RenderStream = (function (superclass) {
 
 /*  */
 
+
+
 var RenderContext = function RenderContext (options) {
   this.userContext = options.userContext;
   this.activeInstance = options.activeInstance;
@@ -2415,58 +2452,58 @@ var RenderContext = function RenderContext (options) {
 };
 
 RenderContext.prototype.next = function next () {
-  var lastState = this.renderStates[this.renderStates.length - 1];
-  if (isUndef(lastState)) {
-    return this.done()
-  }
-  switch (lastState.type) {
-    case 'Element':
-    case 'Fragment':
-      var children = lastState.children;
-    var total = lastState.total;
-      var rendered = lastState.rendered++;
-      if (rendered < total) {
-        this.renderNode(children[rendered], false, this);
-      } else {
+  // eslint-disable-next-line
+  while (true) {
+    var lastState = this.renderStates[this.renderStates.length - 1];
+    if (isUndef(lastState)) {
+      return this.done()
+    }
+    /* eslint-disable no-case-declarations */
+    switch (lastState.type) {
+      case 'Element':
+      case 'Fragment':
+        var children = lastState.children;
+      var total = lastState.total;
+        var rendered = lastState.rendered++;
+        if (rendered < total) {
+          return this.renderNode(children[rendered], false, this)
+        } else {
+          this.renderStates.pop();
+          if (lastState.type === 'Element') {
+            return this.write(lastState.endTag, this.next)
+          }
+        }
+        break
+      case 'Component':
         this.renderStates.pop();
-        if (lastState.type === 'Element') {
-          this.write(lastState.endTag, this.next);
+        this.activeInstance = lastState.prevActive;
+        break
+      case 'ComponentWithCache':
+        this.renderStates.pop();
+        var buffer = lastState.buffer;
+      var bufferIndex = lastState.bufferIndex;
+      var componentBuffer = lastState.componentBuffer;
+      var key = lastState.key;
+        var result = {
+          html: buffer[bufferIndex],
+          components: componentBuffer[bufferIndex]
+        };
+        this.cache.set(key, result);
+        if (bufferIndex === 0) {
+          // this is a top-level cached component,
+          // exit caching mode.
+          this.write.caching = false;
         } else {
-          this.next();
+          // parent component is also being cached,
+          // merge self into parent's result
+          buffer[bufferIndex - 1] += result.html;
+          var prev = componentBuffer[bufferIndex - 1];
+          result.components.forEach(function (c) { return prev.add(c); });
         }
-      }
-      break
-    case 'Component':
-      this.renderStates.pop();
-      this.activeInstance = lastState.prevActive;
-      this.next();
-      break
-    case 'ComponentWithCache':
-      this.renderStates.pop();
-      var buffer = lastState.buffer;
-    var bufferIndex = lastState.bufferIndex;
-    var componentBuffer = lastState.componentBuffer;
-    var key = lastState.key;
-      var result = {
-        html: buffer[bufferIndex],
-        components: componentBuffer[bufferIndex]
-      };
-      this.cache.set(key, result);
-      if (bufferIndex === 0) {
-        // this is a top-level cached component,
-        // exit caching mode.
-        this.write.caching = false;
-      } else {
-        // parent component is also being cached,
-        // merge self into parent's result
-        buffer[bufferIndex - 1] += result.html;
-        var prev = componentBuffer[bufferIndex - 1];
-        result.components.forEach(function (c) { return prev.add(c); });
-      }
-      buffer.length = bufferIndex;
-      componentBuffer.length = bufferIndex;
-      this.next();
-      break
+        buffer.length = bufferIndex;
+        componentBuffer.length = bufferIndex;
+        break
+    }
   }
 };
 
@@ -2581,7 +2618,7 @@ function wrapFilter (exp, filter) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -2691,6 +2728,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -2706,18 +2755,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -2829,7 +2866,7 @@ var klass = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -2873,19 +2910,12 @@ var style = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /**
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -2900,11 +2930,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -2985,7 +3010,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -3102,12 +3127,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -3133,12 +3152,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -3247,12 +3263,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index, expressionPos, expressionEndPos;
 
 
 
@@ -3340,7 +3351,7 @@ function parseString (chr) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -3525,7 +3536,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -3649,8 +3661,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+    if (process.env.NODE_ENV !== 'production') {
+      if (el.tag === 'template') {
+        warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$1(
+            "Do not use v-for index as key on <transtion-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -3688,7 +3712,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -3841,6 +3865,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          process.env.NODE_ENV !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$1(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -3989,16 +4021,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -4067,13 +4089,13 @@ function cloneASTElement (el) {
 
 var model$1 = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules$1 = [
   klass,
   style,
   model$1
-]
+];
 
 /*  */
 
@@ -4083,7 +4105,6 @@ var warn$2;
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
 
-
 function model$2 (
   el,
   dir,
@@ -4118,17 +4139,10 @@ function model$2 (
     genRadioModel(el, value, modifiers);
   } else if (tag === 'input' || tag === 'textarea') {
     genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
+  } else {
     genComponentModel(el, value, modifiers);
     // component v-model doesn't need extra runtime
     return false
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$2(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
   }
 
   // ensure runtime directive metadata
@@ -4267,7 +4281,7 @@ var directives = {
   model: model$2,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -4337,8 +4351,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -4366,7 +4379,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -4403,7 +4415,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -4452,10 +4463,14 @@ var baseDirectives$1 = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -4463,9 +4478,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives$1), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -4483,6 +4499,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -4491,7 +4511,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -4501,7 +4521,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -4517,7 +4540,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -4658,10 +4689,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -4753,7 +4784,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -4791,13 +4822,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      // because el may be a functional component and return an Array instead of a single root.
+      // In this case, just a simple normalization is needed
+      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -4835,7 +4869,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -4901,6 +4935,11 @@ function transformSpecialNewlines (text) {
 
 /*  */
 
+
+
+
+
+
 var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
 // let the model AST transform translate v-model into appropriate
@@ -4980,7 +5019,7 @@ function genClassSegments (
   classBinding
 ) {
   if (staticClass && !classBinding) {
-    return [{ type: RAW, value: (" class=" + staticClass) }]
+    return [{ type: RAW, value: (" class=\"" + (JSON.parse(staticClass)) + "\"") }]
   } else {
     return [{
       type: EXPRESSION,
@@ -5009,16 +5048,6 @@ function genStyleSegments (
 
 /*  */
 
-/**
- * In SSR, the vdom tree is generated only once and never patched, so
- * we can optimize most element / trees into plain string render functions.
- * The SSR optimizer walks the AST tree to detect optimizable elements and trees.
- *
- * The criteria for SSR optimizability is quite a bit looser than static tree
- * detection (which is designed for client re-render). In SSR we bail only for
- * components/slots/custom directives.
- */
-
 // optimizability constants
 var optimizability = {
   FALSE: 0,    // whole sub tree un-optimizable
@@ -5148,9 +5177,8 @@ function isSelectWithModel (node) {
 
 /*  */
 
-// The SSR codegen is essentially extending the default codegen to handle
-// SSR-optimizable nodes and turn them into string render fns. In cases where
-// a node is not optimizable it simply falls back to the default codegen.
+
+
 
 // segment types
 var RAW = 0;
@@ -5482,6 +5510,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -5648,6 +5678,7 @@ var createCompiler = createCompilerCreator(function baseCompile (
 /*  */
 
 var ref = createCompiler(baseOptions);
+var compile = ref.compile;
 var compileToFunctions = ref.compileToFunctions;
 
 /*  */
@@ -5820,6 +5851,9 @@ function renderStringList (
 function renderAttrs$1 (obj) {
   var res = '';
   for (var key in obj) {
+    if (isSSRUnsafeAttr(key)) {
+      continue
+    }
     res += renderAttr(key, obj[key]);
   }
   return res
@@ -5884,8 +5918,6 @@ if (process.env.NODE_ENV !== 'production') {
       }
     });
   }
-
-  
 }
 
 /*  */
@@ -5934,9 +5966,7 @@ if (process.env.NODE_ENV !== 'production') {
     perf.measure &&
     perf.clearMarks &&
     perf.clearMeasures
-  ) {
-    
-  }
+  ) ;
 }
 
 /*  */
@@ -5980,14 +6010,14 @@ function updateListeners (
   oldOn,
   add,
   remove$$1,
+  createOnceHandler,
   vm
 ) {
-  var name, def, cur, old, event;
+  var name, def$$1, cur, old, event;
   for (name in on) {
-    def = cur = on[name];
+    def$$1 = cur = on[name];
     old = oldOn[name];
     event = normalizeEvent(name);
-    /* istanbul ignore if */
     if (isUndef(cur)) {
       process.env.NODE_ENV !== 'production' && warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
@@ -5997,7 +6027,10 @@ function updateListeners (
       if (isUndef(cur.fns)) {
         cur = on[name] = createFnInvoker(cur);
       }
-      add(event.name, cur, event.once, event.capture, event.passive, event.params);
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
     } else if (cur !== old) {
       old.fns = cur;
       on[name] = old;
@@ -6132,10 +6165,14 @@ function resolveAsyncComponent (
     var contexts = factory.contexts = [context];
     var sync = true;
 
-    var forceRender = function () {
+    var forceRender = function (renderCompleted) {
       for (var i = 0, l = contexts.length; i < l; i++) {
         contexts[i].$forceUpdate();
       }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
     };
 
     var resolve = once(function (res) {
@@ -6144,7 +6181,7 @@ function resolveAsyncComponent (
       // invoke callbacks only if this is not a synchronous resolve
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -6155,7 +6192,7 @@ function resolveAsyncComponent (
       );
       if (isDef(factory.errorComp)) {
         factory.error = true;
-        forceRender();
+        forceRender(true);
       }
     });
 
@@ -6182,7 +6219,7 @@ function resolveAsyncComponent (
             setTimeout(function () {
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
-                forceRender();
+                forceRender(false);
               }
             }, res.delay || 200);
           }
@@ -6218,29 +6255,33 @@ function resolveAsyncComponent (
 
 /*  */
 
-
-
 var target;
 
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
 function remove$1 (event, fn) {
   target.$off(event, fn);
 }
 
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
 function updateComponentListeners (
   vm,
   listeners,
   oldListeners
 ) {
   target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
   target = undefined;
 }
 
@@ -6314,13 +6355,6 @@ function resolveScopedSlots (
 
 var activeInstance = null;
 
-
-
-
-
-
-
-
 function updateChildComponent (
   vm,
   propsData,
@@ -6328,9 +6362,7 @@ function updateChildComponent (
   parentVnode,
   renderChildren
 ) {
-  if (process.env.NODE_ENV !== 'production') {
-    
-  }
+  if (process.env.NODE_ENV !== 'production') ;
 
   // determine whether component has slot children
   // we need to do this before overwriting $options._renderChildren
@@ -6382,9 +6414,7 @@ function updateChildComponent (
     vm.$forceUpdate();
   }
 
-  if (process.env.NODE_ENV !== 'production') {
-    
-  }
+  if (process.env.NODE_ENV !== 'production') ;
 }
 
 function isInInactiveTree (vm) {
@@ -6449,10 +6479,6 @@ function callHook (vm, hook) {
 
 /*  */
 
-
-
-
-var activatedChildren = [];
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -6461,15 +6487,8 @@ function queueActivatedComponent (vm) {
   // setting _inactive to false here so that a render function can
   // rely on checking whether it's in an inactive tree (e.g. router-view)
   vm._inactive = false;
-  activatedChildren.push(vm);
 }
 
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-
 /*  */
 
 /*  */
@@ -6552,13 +6571,7 @@ function _createElement (
   if (typeof tag === 'string') {
     var Ctor;
     ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+    if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
       // component
       vnode = createComponent(Ctor, data, context, children, tag);
     } else {
@@ -6675,19 +6688,7 @@ function renderSlot (
     }
     nodes = scopedSlotFn(props) || fallback;
   } else {
-    var slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if (process.env.NODE_ENV !== 'production' && slotNodes._rendered) {
-        warn(
-          "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
-          "- this will likely cause render errors.",
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
+    nodes = this.$slots[name] || fallback;
   }
 
   var target = props && props.slot;
@@ -6775,12 +6776,13 @@ function bindObjectProps (
             ? data.domProps || (data.domProps = {})
             : data.attrs || (data.attrs = {});
         }
-        if (!(key in hash)) {
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + key)] = function ($event) {
+            on[("update:" + camelizedKey)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -6899,10 +6901,6 @@ function installRenderHelpers (target) {
 
 /*  */
 
-
-
-
-
 function resolveInject (inject, vm) {
   if (inject) {
     // inject is :any because flow is not smart enough to figure out cached
@@ -6942,10 +6940,6 @@ function resolveInject (inject, vm) {
 
 /*  */
 
-
-
-
-
 function resolveConstructorOptions (Ctor) {
   var options = Ctor.options;
   if (Ctor.super) {
@@ -7094,24 +7088,27 @@ function createFunctionalComponent (
   var vnode = options.render.call(null, renderContext._c, renderContext);
 
   if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options)
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
   } else if (Array.isArray(vnode)) {
     var vnodes = normalizeChildren(vnode) || [];
     var res = new Array(vnodes.length);
     for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options);
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
     return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options) {
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
   // #7817 clone node before setting fnContext, otherwise if the node is reused
   // (e.g. it was from a cached normal slot) the fnContext causes named slots
   // that should not be matched to match.
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
+  if (process.env.NODE_ENV !== 'production') {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
   if (data.slot) {
     (clone.data || (clone.data = {})).slot = data.slot;
   }
@@ -7126,21 +7123,8 @@ function mergeProps (to, from) {
 
 /*  */
 
-
-
-
-// Register the component hook to weex native render engine.
-// The hook will be triggered by native, not javascript.
-
-
-// Updates the state of the component to weex native render engine.
-
 /*  */
 
-// https://github.com/Hanks10100/weex-native-directive/tree/master/component
-
-// listening on native callback
-
 /*  */
 
 /*  */
@@ -7308,10 +7292,6 @@ function createComponent (
     asyncFactory
   );
 
-  // Weex specific: invoke recycle-list optimized @render function for
-  // extracting cell-slot template.
-  // https://github.com/Hanks10100/weex-native-directive/tree/master/component
-  /* istanbul ignore if */
   return vnode
 }
 
@@ -7359,12 +7339,21 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
   } else {
-    on[event] = data.model.callback;
+    on[event] = callback;
   }
 }
 
@@ -7688,11 +7677,13 @@ function renderStartingTag (node, context) {
     if (dirs) {
       for (var i = 0; i < dirs.length; i++) {
         var name = dirs[i].name;
-        var dirRenderer = directives[name];
-        if (dirRenderer && name !== 'show') {
-          // directives mutate the node's data
-          // which then gets rendered by modules
-          dirRenderer(node, dirs[i]);
+        if (name !== 'show') {
+          var dirRenderer = resolveAsset(context, 'directives', name, true);
+          if (dirRenderer) {
+            // directives mutate the node's data
+            // which then gets rendered by modules
+            dirRenderer(node, dirs[i]);
+          }
         }
       }
     }
@@ -7784,7 +7775,7 @@ var Transform = require('stream').Transform;
 
 
 
-var TemplateStream = (function (Transform) {
+var TemplateStream = /*@__PURE__*/(function (Transform) {
   function TemplateStream (
     renderer,
     template,
@@ -7961,6 +7952,14 @@ function mapIdToFile (id, clientManifest) {
 var path = require('path');
 var serialize = require('serialize-javascript');
 
+
+
+
+
+
+
+
+
 var TemplateRenderer = function TemplateRenderer (options) {
   this.options = options;
   this.inject = options.inject !== false;
@@ -7973,7 +7972,7 @@ var TemplateRenderer = function TemplateRenderer (options) {
   // extra functionality with client manifest
   if (options.clientManifest) {
     var clientManifest = this.clientManifest = options.clientManifest;
-    this.publicPath = clientManifest.publicPath.replace(/\/$/, '');
+    this.publicPath = clientManifest.publicPath;
     // preload/prefetch directives
     this.preloadFiles = (clientManifest.initial || []).map(normalizeFile);
     this.prefetchFiles = (clientManifest.async || []).map(normalizeFile);
@@ -7983,7 +7982,8 @@ var TemplateRenderer = function TemplateRenderer (options) {
 };
 
 TemplateRenderer.prototype.bindRenderFns = function bindRenderFns (context) {
-  var renderer = this;['ResourceHints', 'State', 'Scripts', 'Styles'].forEach(function (type) {
+  var renderer = this
+  ;['ResourceHints', 'State', 'Scripts', 'Styles'].forEach(function (type) {
     context[("render" + type)] = renderer[("render" + type)].bind(renderer, context);
   });
   // also expose getPreloadFiles, useful for HTTP/2 push
@@ -8022,13 +8022,21 @@ TemplateRenderer.prototype.renderSync = function renderSync (content, context) {
 TemplateRenderer.prototype.renderStyles = function renderStyles (context) {
     var this$1 = this;
 
-  var cssFiles = this.clientManifest
-    ? this.clientManifest.all.filter(isCSS)
-    : [];
+  var initial = this.preloadFiles || [];
+  var async = this.getUsedAsyncFiles(context) || [];
+  var cssFiles = initial.concat(async).filter(function (ref) {
+      var file = ref.file;
+
+      return isCSS(file);
+    });
   return (
     // render links for css files
     (cssFiles.length
-      ? cssFiles.map(function (file) { return ("<link rel=\"stylesheet\" href=\"" + (this$1.publicPath) + "/" + file + "\">"); }).join('')
+      ? cssFiles.map(function (ref) {
+          var file = ref.file;
+
+          return ("<link rel=\"stylesheet\" href=\"" + (this$1.getPublicPath(file)) + "\">");
+    }).join('')
       : '') +
     // context.styles is a getter exposed by vue-style-loader which contains
     // the inline component styles collected during SSR
@@ -8073,7 +8081,7 @@ TemplateRenderer.prototype.renderPreloadLinks = function renderPreloadLinks (con
       if (asType === 'font') {
         extra = " type=\"font/" + extension + "\" crossorigin";
       }
-      return ("<link rel=\"preload\" href=\"" + (this$1.publicPath) + "/" + file + "\"" + (asType !== '' ? (" as=\"" + asType + "\"") : '') + extra + ">")
+      return ("<link rel=\"preload\" href=\"" + (this$1.getPublicPath(file)) + "\"" + (asType !== '' ? (" as=\"" + asType + "\"") : '') + extra + ">")
     }).join('')
   } else {
     return ''
@@ -8100,7 +8108,7 @@ TemplateRenderer.prototype.renderPrefetchLinks = function renderPrefetchLinks (c
       if (alreadyRendered(file)) {
         return ''
       }
-      return ("<link rel=\"prefetch\" href=\"" + (this$1.publicPath) + "/" + file + "\">")
+      return ("<link rel=\"prefetch\" href=\"" + (this$1.getPublicPath(file)) + "\">")
     }).join('')
   } else {
     return ''
@@ -8124,17 +8132,21 @@ TemplateRenderer.prototype.renderScripts = function renderScripts (context) {
     var this$1 = this;
 
   if (this.clientManifest) {
-    var initial = this.preloadFiles;
-    var async = this.getUsedAsyncFiles(context);
-    var needed = [initial[0]].concat(async || [], initial.slice(1));
-    return needed.filter(function (ref) {
+    var initial = this.preloadFiles.filter(function (ref) {
         var file = ref.file;
 
         return isJS(file);
-      }).map(function (ref) {
+      });
+    var async = (this.getUsedAsyncFiles(context) || []).filter(function (ref) {
+        var file = ref.file;
+
+        return isJS(file);
+      });
+    var needed = [initial[0]].concat(async || [], initial.slice(1));
+    return needed.map(function (ref) {
         var file = ref.file;
 
-      return ("<script src=\"" + (this$1.publicPath) + "/" + file + "\" defer></script>")
+      return ("<script src=\"" + (this$1.getPublicPath(file)) + "\" defer></script>")
     }).join('')
   } else {
     return ''
@@ -8157,6 +8169,10 @@ TemplateRenderer.prototype.createStream = function createStream (context) {
   return new TemplateStream(this, this.parsedTemplate, context || {})
 };
 
+TemplateRenderer.prototype.getPublicPath = function getPublicPath (file) {
+  return path.posix.join(this.publicPath, file)
+};
+
 function normalizeFile (file) {
   var withoutQuery = file.replace(/\?.*/, '');
   var extension = path.extname(withoutQuery).slice(1);
@@ -8185,6 +8201,13 @@ function getPreloadType (ext) {
 
 /*  */
 
+
+
+
+
+
+
+
 function createRenderer (ref) {
   if ( ref === void 0 ) ref = {};
   var modules = ref.modules; if ( modules === void 0 ) modules = [];
diff --git a/packages/vue-server-renderer/client-plugin.js b/packages/vue-server-renderer/client-plugin.js
index 9916bcfb5f0..15cdcbd3ad4 100644
--- a/packages/vue-server-renderer/client-plugin.js
+++ b/packages/vue-server-renderer/client-plugin.js
@@ -4,6 +4,8 @@
 
 var isJS = function (file) { return /\.js(\?[^.]+)?$/.test(file); };
 
+var isCSS = function (file) { return /\.css(\?[^.]+)?$/.test(file); };
+
 var ref = require('chalk');
 var red = ref.red;
 var yellow = ref.yellow;
@@ -12,8 +14,19 @@ var prefix = "[vue-server-renderer-webpack-plugin]";
 var warn = exports.warn = function (msg) { return console.error(red((prefix + " " + msg + "\n"))); };
 var tip = exports.tip = function (msg) { return console.log(yellow((prefix + " " + msg + "\n"))); };
 
+var onEmit = function (compiler, name, hook) {
+  if (compiler.hooks) {
+    // Webpack >= 4.0.0
+    compiler.hooks.emit.tapAsync(name, hook);
+  } else {
+    // Webpack < 4.0.0
+    compiler.plugin('emit', hook);
+  }
+};
+
 var hash = require('hash-sum');
 var uniq = require('lodash.uniq');
+
 var VueSSRClientPlugin = function VueSSRClientPlugin (options) {
   if ( options === void 0 ) options = {};
 
@@ -25,7 +38,7 @@ var VueSSRClientPlugin = function VueSSRClientPlugin (options) {
 VueSSRClientPlugin.prototype.apply = function apply (compiler) {
     var this$1 = this;
 
-  compiler.plugin('emit', function (compilation, cb) {
+  onEmit(compiler, 'vue-client-plugin', function (compilation, cb) {
     var stats = compilation.getStats().toJson();
 
     var allFiles = uniq(stats.assets
@@ -34,10 +47,10 @@ VueSSRClientPlugin.prototype.apply = function apply (compiler) {
     var initialFiles = uniq(Object.keys(stats.entrypoints)
       .map(function (name) { return stats.entrypoints[name].assets; })
       .reduce(function (assets, all) { return all.concat(assets); }, [])
-      .filter(isJS));
+      .filter(function (file) { return isJS(file) || isCSS(file); }));
 
     var asyncFiles = allFiles
-      .filter(isJS)
+      .filter(function (file) { return isJS(file) || isCSS(file); })
       .filter(function (file) { return initialFiles.indexOf(file) < 0; });
 
     var manifest = {
@@ -58,7 +71,8 @@ VueSSRClientPlugin.prototype.apply = function apply (compiler) {
         if (!chunk || !chunk.files) {
           return
         }
-        var files = manifest.modules[hash(m.identifier)] = chunk.files.map(fileToIndex);
+        var id = m.identifier.replace(/\s\w+$/, ''); // remove appended hash
+        var files = manifest.modules[hash(id)] = chunk.files.map(fileToIndex);
         // find all asset modules associated with the same chunk
         assetModules.forEach(function (m) {
           if (m.chunks.some(function (id) { return id === cid; })) {
@@ -68,12 +82,6 @@ VueSSRClientPlugin.prototype.apply = function apply (compiler) {
       }
     });
 
-    // const debug = (file, obj) => {
-    // require('fs').writeFileSync(__dirname + '/' + file, JSON.stringify(obj, null, 2))
-    // }
-    // debug('stats.json', stats)
-    // debug('client-manifest.json', manifest)
-
     var json = JSON.stringify(manifest, null, 2);
     compilation.assets[this$1.options.filename] = {
       source: function () { return json; },
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index bb3eefe05cb..dd85673c6bd 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.17-beta.0",
+  "version": "2.5.18-beta.0",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-server-renderer/server-plugin.js b/packages/vue-server-renderer/server-plugin.js
index f494c888aa8..54ba2b3ab0a 100644
--- a/packages/vue-server-renderer/server-plugin.js
+++ b/packages/vue-server-renderer/server-plugin.js
@@ -29,6 +29,16 @@ var validate = function (compiler) {
   }
 };
 
+var onEmit = function (compiler, name, hook) {
+  if (compiler.hooks) {
+    // Webpack >= 4.0.0
+    compiler.hooks.emit.tapAsync(name, hook);
+  } else {
+    // Webpack < 4.0.0
+    compiler.plugin('emit', hook);
+  }
+};
+
 var VueSSRServerPlugin = function VueSSRServerPlugin (options) {
   if ( options === void 0 ) options = {};
 
@@ -42,7 +52,7 @@ VueSSRServerPlugin.prototype.apply = function apply (compiler) {
 
   validate(compiler);
 
-  compiler.plugin('emit', function (compilation, cb) {
+  onEmit(compiler, 'vue-server-plugin', function (compilation, cb) {
     var stats = compilation.getStats().toJson();
     var entryName = Object.keys(stats.entrypoints)[0];
     var entryInfo = stats.entrypoints[entryName];
@@ -75,7 +85,7 @@ VueSSRServerPlugin.prototype.apply = function apply (compiler) {
     };
 
     stats.assets.forEach(function (asset) {
-      if (asset.name.match(/\.js$/)) {
+      if (isJS(asset.name)) {
         bundle.files[asset.name] = compilation.assets[asset.name].source();
       } else if (asset.name.match(/\.js\.map$/)) {
         bundle.maps[asset.name.replace(/\.map$/, '')] = JSON.parse(compilation.assets[asset.name].source());
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 14121fd119c..409df58dc66 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -1,5238 +1,5132 @@
 (function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
-	typeof define === 'function' && define.amd ? define(['exports'], factory) :
-	(factory((global.VueTemplateCompiler = {})));
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (factory((global.VueTemplateCompiler = {})));
 }(this, (function (exports) { 'use strict';
 
-var splitRE = /\r?\n/g;
-var emptyRE = /^\s*$/;
-var needFixRE = /^(\r?\n)*[\t\s]/;
-
-var deIndent = function deindent (str) {
-  if (!needFixRE.test(str)) {
-    return str
-  }
-  var lines = str.split(splitRE);
-  var min = Infinity;
-  var type, cur, c;
-  for (var i = 0; i < lines.length; i++) {
-    var line = lines[i];
-    if (!emptyRE.test(line)) {
-      if (!type) {
-        c = line.charAt(0);
-        if (c === ' ' || c === '\t') {
-          type = c;
+  var splitRE = /\r?\n/g;
+  var emptyRE = /^\s*$/;
+  var needFixRE = /^(\r?\n)*[\t\s]/;
+
+  var deIndent = function deindent (str) {
+    if (!needFixRE.test(str)) {
+      return str
+    }
+    var lines = str.split(splitRE);
+    var min = Infinity;
+    var type, cur, c;
+    for (var i = 0; i < lines.length; i++) {
+      var line = lines[i];
+      if (!emptyRE.test(line)) {
+        if (!type) {
+          c = line.charAt(0);
+          if (c === ' ' || c === '\t') {
+            type = c;
+            cur = count(line, type);
+            if (cur < min) {
+              min = cur;
+            }
+          } else {
+            return str
+          }
+        } else {
           cur = count(line, type);
           if (cur < min) {
             min = cur;
           }
-        } else {
-          return str
-        }
-      } else {
-        cur = count(line, type);
-        if (cur < min) {
-          min = cur;
         }
       }
     }
+    return lines.map(function (line) {
+      return line.slice(min)
+    }).join('\n')
+  };
+
+  function count (line, type) {
+    var i = 0;
+    while (line.charAt(i) === type) {
+      i++;
+    }
+    return i
+  }
+
+  /*  */
+
+  var emptyObject = Object.freeze({});
+
+  // These helpers produce better VM code in JS engines due to their
+  // explicitness and function inlining.
+  function isUndef (v) {
+    return v === undefined || v === null
   }
-  return lines.map(function (line) {
-    return line.slice(min)
-  }).join('\n')
-};
 
-function count (line, type) {
-  var i = 0;
-  while (line.charAt(i) === type) {
-    i++;
+  /**
+   * Check if value is primitive.
+   */
+  function isPrimitive (value) {
+    return (
+      typeof value === 'string' ||
+      typeof value === 'number' ||
+      // $flow-disable-line
+      typeof value === 'symbol' ||
+      typeof value === 'boolean'
+    )
+  }
+
+  /**
+   * Quick object check - this is primarily used to tell
+   * Objects from primitive values when we know the value
+   * is a JSON-compliant type.
+   */
+  function isObject (obj) {
+    return obj !== null && typeof obj === 'object'
+  }
+
+  /**
+   * Get the raw type string of a value, e.g., [object Object].
+   */
+  var _toString = Object.prototype.toString;
+
+  function toRawType (value) {
+    return _toString.call(value).slice(8, -1)
+  }
+
+  /**
+   * Strict object type check. Only returns true
+   * for plain JavaScript objects.
+   */
+  function isPlainObject (obj) {
+    return _toString.call(obj) === '[object Object]'
   }
-  return i
-}
 
-/*  */
+  /**
+   * Check if val is a valid array index.
+   */
+  function isValidArrayIndex (val) {
+    var n = parseFloat(String(val));
+    return n >= 0 && Math.floor(n) === n && isFinite(val)
+  }
 
-var emptyObject = Object.freeze({});
+  /**
+   * Make a map and return a function for checking if a key
+   * is in that map.
+   */
+  function makeMap (
+    str,
+    expectsLowerCase
+  ) {
+    var map = Object.create(null);
+    var list = str.split(',');
+    for (var i = 0; i < list.length; i++) {
+      map[list[i]] = true;
+    }
+    return expectsLowerCase
+      ? function (val) { return map[val.toLowerCase()]; }
+      : function (val) { return map[val]; }
+  }
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
-function isUndef (v) {
-  return v === undefined || v === null
-}
+  /**
+   * Check if a tag is a built-in tag.
+   */
+  var isBuiltInTag = makeMap('slot,component', true);
 
+  /**
+   * Check if an attribute is a reserved attribute.
+   */
+  var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
+  /**
+   * Remove an item from an array.
+   */
+  function remove (arr, item) {
+    if (arr.length) {
+      var index = arr.indexOf(item);
+      if (index > -1) {
+        return arr.splice(index, 1)
+      }
+    }
+  }
 
+  /**
+   * Check whether an object has the property.
+   */
+  var hasOwnProperty = Object.prototype.hasOwnProperty;
+  function hasOwn (obj, key) {
+    return hasOwnProperty.call(obj, key)
+  }
 
+  /**
+   * Create a cached version of a pure function.
+   */
+  function cached (fn) {
+    var cache = Object.create(null);
+    return (function cachedFn (str) {
+      var hit = cache[str];
+      return hit || (cache[str] = fn(str))
+    })
+  }
 
+  /**
+   * Camelize a hyphen-delimited string.
+   */
+  var camelizeRE = /-(\w)/g;
+  var camelize = cached(function (str) {
+    return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+  });
 
+  /**
+   * Simple bind polyfill for environments that do not support it,
+   * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+   * since native bind is now performant enough in most browsers.
+   * But removing it would mean breaking code that was able to run in
+   * PhantomJS 1.x, so this must be kept for backward compatibility.
+   */
 
-/**
- * Check if value is primitive
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value e.g. [object Object]
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-
-
-/**
- * Convert a input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if a attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether the object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-
-
-
-
-/**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
-/**
- * Convert an Array-like object to a real Array.
- */
-
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
-
-/**
- * Return same value
- */
-var identity = function (_) { return _; };
-
-/**
- * Generate a static keys string from compiler modules.
- */
-function genStaticKeys (modules) {
-  return modules.reduce(function (keys, m) {
-    return keys.concat(m.staticKeys || [])
-  }, []).join(',')
-}
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-
-
-
-
-/**
- * Ensure a function is called only once.
- */
-
-/*  */
-
-var isUnaryTag = makeMap(
-  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-  'link,meta,param,source,track,wbr'
-);
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-var canBeLeftOpenTag = makeMap(
-  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-);
-
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-var isNonPhrasingTag = makeMap(
-  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-  'title,tr,track'
-);
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
-// Regular Expressions for parsing tags and attributes
-var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-var startTagOpen = new RegExp(("^<" + qnameCapture));
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
-var comment = /^<!\--/;
-var conditionalComment = /^<!\[/;
-
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n',
-  '&#9;': '\t'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) { return decodingMap[match]; })
-}
-
-function parseHTML (html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
+  /* istanbul ignore next */
+  function polyfillBind (fn, ctx) {
+    function boundFn (a) {
+      var l = arguments.length;
+      return l
+        ? l > 1
+          ? fn.apply(ctx, arguments)
+          : fn.call(ctx, a)
+        : fn.call(ctx)
+    }
+
+    boundFn._length = fn.length;
+    return boundFn
+  }
+
+  function nativeBind (fn, ctx) {
+    return fn.bind(ctx)
+  }
+
+  var bind = Function.prototype.bind
+    ? nativeBind
+    : polyfillBind;
+
+  /**
+   * Mix properties into target object.
+   */
+  function extend (to, _from) {
+    for (var key in _from) {
+      to[key] = _from[key];
+    }
+    return to
+  }
+
+  /* eslint-disable no-unused-vars */
+
+  /**
+   * Perform no operation.
+   * Stubbing args to make Flow happy without leaving useless transpiled code
+   * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
+   */
+  function noop (a, b, c) {}
+
+  /**
+   * Always return false.
+   */
+  var no = function (a, b, c) { return false; };
+
+  /* eslint-enable no-unused-vars */
+
+  /**
+   * Return the same value.
+   */
+  var identity = function (_) { return _; };
+
+  /**
+   * Generate a string containing static keys from compiler modules.
+   */
+  function genStaticKeys (modules) {
+    return modules.reduce(function (keys, m) {
+      return keys.concat(m.staticKeys || [])
+    }, []).join(',')
+  }
+
+  /*  */
+
+  var isUnaryTag = makeMap(
+    'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+    'link,meta,param,source,track,wbr'
+  );
+
+  // Elements that you can, intentionally, leave open
+  // (and which close themselves)
+  var canBeLeftOpenTag = makeMap(
+    'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+  );
+
+  // HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+  // Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+  var isNonPhrasingTag = makeMap(
+    'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+    'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+    'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+    'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+    'title,tr,track'
+  );
+
+  /**
+   * Not type-checking this file because it's mostly vendor code.
+   */
+
+  // Regular Expressions for parsing tags and attributes
+  var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+  // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+  // but for Vue templates we can enforce a simple charset
+  var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+  var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+  var startTagOpen = new RegExp(("^<" + qnameCapture));
+  var startTagClose = /^\s*(\/?)>/;
+  var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+  var doctype = /^<!DOCTYPE [^>]+>/i;
+  // #7298: escape - to avoid being pased as HTML comment when inlined in page
+  var comment = /^<!\--/;
+  var conditionalComment = /^<!\[/;
+
+  // Special Elements (can contain anything)
+  var isPlainTextElement = makeMap('script,style,textarea', true);
+  var reCache = {};
+
+  var decodingMap = {
+    '&lt;': '<',
+    '&gt;': '>',
+    '&quot;': '"',
+    '&amp;': '&',
+    '&#10;': '\n',
+    '&#9;': '\t'
+  };
+  var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+  // #5992
+  var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+  var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+  function decodeAttr (value, shouldDecodeNewlines) {
+    var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+    return value.replace(re, function (match) { return decodingMap[match]; })
+  }
+
+  function parseHTML (html, options) {
+    var stack = [];
+    var expectHTML = options.expectHTML;
+    var isUnaryTag$$1 = options.isUnaryTag || no;
+    var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+    var index = 0;
+    var last, lastTag;
+    while (html) {
+      last = html;
+      // Make sure we're not in a plaintext content element like script/style
+      if (!lastTag || !isPlainTextElement(lastTag)) {
+        var textEnd = html.indexOf('<');
+        if (textEnd === 0) {
+          // Comment:
+          if (comment.test(html)) {
+            var commentEnd = html.indexOf('-->');
+
+            if (commentEnd >= 0) {
+              if (options.shouldKeepComment) {
+                options.comment(html.substring(4, commentEnd));
+              }
+              advance(commentEnd + 3);
+              continue
+            }
+          }
+
+          // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+          if (conditionalComment.test(html)) {
+            var conditionalEnd = html.indexOf(']>');
+
+            if (conditionalEnd >= 0) {
+              advance(conditionalEnd + 2);
+              continue
             }
-            advance(commentEnd + 3);
+          }
+
+          // Doctype:
+          var doctypeMatch = html.match(doctype);
+          if (doctypeMatch) {
+            advance(doctypeMatch[0].length);
             continue
           }
-        }
 
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          var conditionalEnd = html.indexOf(']>');
+          // End tag:
+          var endTagMatch = html.match(endTag);
+          if (endTagMatch) {
+            var curIndex = index;
+            advance(endTagMatch[0].length);
+            parseEndTag(endTagMatch[1], curIndex, index);
+            continue
+          }
 
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
+          // Start tag:
+          var startTagMatch = parseStartTag();
+          if (startTagMatch) {
+            handleStartTag(startTagMatch);
+            if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
+              advance(1);
+            }
             continue
           }
         }
 
-        // Doctype:
-        var doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue
+        var text = (void 0), rest = (void 0), next = (void 0);
+        if (textEnd >= 0) {
+          rest = html.slice(textEnd);
+          while (
+            !endTag.test(rest) &&
+            !startTagOpen.test(rest) &&
+            !comment.test(rest) &&
+            !conditionalComment.test(rest)
+          ) {
+            // < in plain text, be forgiving and treat it as text
+            next = rest.indexOf('<', 1);
+            if (next < 0) { break }
+            textEnd += next;
+            rest = html.slice(textEnd);
+          }
+          text = html.substring(0, textEnd);
+          advance(textEnd);
         }
 
-        // End tag:
-        var endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          var curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue
+        if (textEnd < 0) {
+          text = html;
+          html = '';
         }
 
-        // Start tag:
-        var startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
-            advance(1);
-          }
-          continue
+        if (options.chars && text) {
+          options.chars(text);
         }
+      } else {
+        var endTagLength = 0;
+        var stackedTag = lastTag.toLowerCase();
+        var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+        var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+          endTagLength = endTag.length;
+          if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+            text = text
+              .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+              .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+          }
+          if (shouldIgnoreFirstNewline(stackedTag, text)) {
+            text = text.slice(1);
+          }
+          if (options.chars) {
+            options.chars(text);
+          }
+          return ''
+        });
+        index += html.length - rest$1.length;
+        html = rest$1;
+        parseEndTag(stackedTag, index - endTagLength, index);
       }
 
-      var text = (void 0), rest = (void 0), next = (void 0);
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (
-          !endTag.test(rest) &&
-          !startTagOpen.test(rest) &&
-          !comment.test(rest) &&
-          !conditionalComment.test(rest)
-        ) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) { break }
-          textEnd += next;
-          rest = html.slice(textEnd);
+      if (html === last) {
+        options.chars && options.chars(html);
+        if (!stack.length && options.warn) {
+          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
         }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
+        break
       }
+    }
 
-      if (textEnd < 0) {
-        text = html;
-        html = '';
-      }
+    // Clean up any remaining tags
+    parseEndTag();
 
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      var endTagLength = 0;
-      var stackedTag = lastTag.toLowerCase();
-      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text
-            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
-            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return ''
-      });
-      index += html.length - rest$1.length;
-      html = rest$1;
-      parseEndTag(stackedTag, index - endTagLength, index);
+    function advance (n) {
+      index += n;
+      html = html.substring(n);
     }
 
-    if (html === last) {
-      options.chars && options.chars(html);
-      if ("development" !== 'production' && !stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+    function parseStartTag () {
+      var start = html.match(startTagOpen);
+      if (start) {
+        var match = {
+          tagName: start[1],
+          attrs: [],
+          start: index
+        };
+        advance(start[0].length);
+        var end, attr;
+        while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+          advance(attr[0].length);
+          match.attrs.push(attr);
+        }
+        if (end) {
+          match.unarySlash = end[1];
+          advance(end[0].length);
+          match.end = index;
+          return match
+        }
       }
-      break
     }
-  }
 
-  // Clean up any remaining tags
-  parseEndTag();
-
-  function advance (n) {
-    index += n;
-    html = html.substring(n);
-  }
+    function handleStartTag (match) {
+      var tagName = match.tagName;
+      var unarySlash = match.unarySlash;
 
-  function parseStartTag () {
-    var start = html.match(startTagOpen);
-    if (start) {
-      var match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match
+      if (expectHTML) {
+        if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+          parseEndTag(lastTag);
+        }
+        if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+          parseEndTag(tagName);
+        }
       }
-    }
-  }
 
-  function handleStartTag (match) {
-    var tagName = match.tagName;
-    var unarySlash = match.unarySlash;
+      var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+      var l = match.attrs.length;
+      var attrs = new Array(l);
+      for (var i = 0; i < l; i++) {
+        var args = match.attrs[i];
+        var value = args[3] || args[4] || args[5] || '';
+        var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+          ? options.shouldDecodeNewlinesForHref
+          : options.shouldDecodeNewlines;
+        attrs[i] = {
+          name: args[1],
+          value: decodeAttr(value, shouldDecodeNewlines)
+        };
+      }
 
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
+      if (!unary) {
+        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+        lastTag = tagName;
       }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
+
+      if (options.start) {
+        options.start(tagName, attrs, unary, match.start, match.end);
       }
     }
 
-    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
-
-    var l = match.attrs.length;
-    var attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
+    function parseEndTag (tagName, start, end) {
+      var pos, lowerCasedTagName;
+      if (start == null) { start = index; }
+      if (end == null) { end = index; }
+
+      // Find the closest opened tag of the same type
+      if (tagName) {
+        lowerCasedTagName = tagName.toLowerCase();
+        for (pos = stack.length - 1; pos >= 0; pos--) {
+          if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+            break
+          }
+        }
+      } else {
+        // If no tag name is provided, clean shop
+        pos = 0;
       }
-      var value = args[3] || args[4] || args[5] || '';
-      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-        ? options.shouldDecodeNewlinesForHref
-        : options.shouldDecodeNewlines;
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, shouldDecodeNewlines)
-      };
-    }
 
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
+      if (pos >= 0) {
+        // Close all the open elements, up the stack
+        for (var i = stack.length - 1; i >= pos; i--) {
+          if (i > pos || !tagName &&
+            options.warn
+          ) {
+            options.warn(
+              ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+            );
+          }
+          if (options.end) {
+            options.end(stack[i].tag, start, end);
+          }
+        }
 
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
+        // Remove the open elements from the stack
+        stack.length = pos;
+        lastTag = pos && stack[pos - 1].tag;
+      } else if (lowerCasedTagName === 'br') {
+        if (options.start) {
+          options.start(tagName, [], true, start, end);
+        }
+      } else if (lowerCasedTagName === 'p') {
+        if (options.start) {
+          options.start(tagName, [], false, start, end);
+        }
+        if (options.end) {
+          options.end(tagName, start, end);
+        }
+      }
     }
   }
 
-  function parseEndTag (tagName, start, end) {
-    var pos, lowerCasedTagName;
-    if (start == null) { start = index; }
-    if (end == null) { end = index; }
+  /*  */
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
+  var splitRE$1 = /\r?\n/g;
+  var replaceRE = /./g;
+  var isSpecialTag = makeMap('script,style,template', true);
 
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break
+
+
+  /**
+   * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
+   */
+  function parseComponent (
+    content,
+    options
+  ) {
+    if ( options === void 0 ) options = {};
+
+    var sfc = {
+      template: null,
+      script: null,
+      styles: [],
+      customBlocks: []
+    };
+    var depth = 0;
+    var currentBlock = null;
+
+    function start (
+      tag,
+      attrs,
+      unary,
+      start,
+      end
+    ) {
+      if (depth === 0) {
+        currentBlock = {
+          type: tag,
+          content: '',
+          start: end,
+          attrs: attrs.reduce(function (cumulated, ref) {
+            var name = ref.name;
+            var value = ref.value;
+
+            cumulated[name] = value || true;
+            return cumulated
+          }, {})
+        };
+        if (isSpecialTag(tag)) {
+          checkAttrs(currentBlock, attrs);
+          if (tag === 'style') {
+            sfc.styles.push(currentBlock);
+          } else {
+            sfc[tag] = currentBlock;
+          }
+        } else { // custom blocks
+          sfc.customBlocks.push(currentBlock);
         }
       }
-    } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
+      if (!unary) {
+        depth++;
+      }
     }
 
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (var i = stack.length - 1; i >= pos; i--) {
-        if ("development" !== 'production' &&
-          (i > pos || !tagName) &&
-          options.warn
-        ) {
-          options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
-          );
+    function checkAttrs (block, attrs) {
+      for (var i = 0; i < attrs.length; i++) {
+        var attr = attrs[i];
+        if (attr.name === 'lang') {
+          block.lang = attr.value;
         }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
+        if (attr.name === 'scoped') {
+          block.scoped = true;
+        }
+        if (attr.name === 'module') {
+          block.module = attr.value || true;
+        }
+        if (attr.name === 'src') {
+          block.src = attr.value;
         }
       }
+    }
 
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
+    function end (tag, start) {
+      if (depth === 1 && currentBlock) {
+        currentBlock.end = start;
+        var text = content.slice(currentBlock.start, currentBlock.end);
+        // pad content so that linters and pre-processors can output correct
+        // line numbers in errors and warnings
+        if (options.pad) {
+          text = padContent(currentBlock, options.pad) + text;
+        } else {
+          // avoid to deindent if pad option is specified
+          // to retain original source position.
+          text = deIndent(text);
+        }
+        currentBlock.content = text;
+        currentBlock = null;
       }
-      if (options.end) {
-        options.end(tagName, start, end);
+      depth--;
+    }
+
+    function padContent (block, pad) {
+      if (pad === 'space') {
+        return content.slice(0, block.start).replace(replaceRE, ' ')
+      } else {
+        var offset = content.slice(0, block.start).split(splitRE$1).length;
+        var padChar = block.type === 'script' && !block.lang
+          ? '//\n'
+          : '\n';
+        return Array(offset).join(padChar)
       }
     }
-  }
-}
 
-/*  */
+    parseHTML(content, {
+      start: start,
+      end: end
+    });
+
+    return sfc
+  }
 
-var splitRE$1 = /\r?\n/g;
-var replaceRE = /./g;
-var isSpecialTag = makeMap('script,style,template', true);
+  /*  */
 
+  /**
+   * Define a property.
+   */
+  function def (obj, key, val, enumerable) {
+    Object.defineProperty(obj, key, {
+      value: val,
+      enumerable: !!enumerable,
+      writable: true,
+      configurable: true
+    });
+  }
 
+  /*  */
 
-/**
- * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
- */
-function parseComponent (
-  content,
-  options
-) {
-  if ( options === void 0 ) options = {};
+  // can we use __proto__?
+  var hasProto = '__proto__' in {};
 
-  var sfc = {
-    template: null,
-    script: null,
-    styles: [],
-    customBlocks: []
-  };
-  var depth = 0;
-  var currentBlock = null;
+  // Browser environment sniffing
+  var inBrowser = typeof window !== 'undefined';
+  var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+  var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+  var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+  var isIE = UA && /msie|trident/.test(UA);
+  var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+  var isEdge = UA && UA.indexOf('edge/') > 0;
+  var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+  var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+  var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
-  function start (
-    tag,
-    attrs,
-    unary,
-    start,
-    end
-  ) {
-    if (depth === 0) {
-      currentBlock = {
-        type: tag,
-        content: '',
-        start: end,
-        attrs: attrs.reduce(function (cumulated, ref) {
-          var name = ref.name;
-          var value = ref.value;
-
-          cumulated[name] = value || true;
-          return cumulated
-        }, {})
-      };
-      if (isSpecialTag(tag)) {
-        checkAttrs(currentBlock, attrs);
-        if (tag === 'style') {
-          sfc.styles.push(currentBlock);
-        } else {
-          sfc[tag] = currentBlock;
+  // Firefox has a "watch" function on Object.prototype...
+  var nativeWatch = ({}).watch;
+  if (inBrowser) {
+    try {
+      var opts = {};
+      Object.defineProperty(opts, 'passive', ({
+        get: function get () {
         }
-      } else { // custom blocks
-        sfc.customBlocks.push(currentBlock);
-      }
-    }
-    if (!unary) {
-      depth++;
-    }
+      })); // https://github.com/facebook/flow/issues/285
+      window.addEventListener('test-passive', null, opts);
+    } catch (e) {}
   }
 
-  function checkAttrs (block, attrs) {
-    for (var i = 0; i < attrs.length; i++) {
-      var attr = attrs[i];
-      if (attr.name === 'lang') {
-        block.lang = attr.value;
-      }
-      if (attr.name === 'scoped') {
-        block.scoped = true;
-      }
-      if (attr.name === 'module') {
-        block.module = attr.value || true;
-      }
-      if (attr.name === 'src') {
-        block.src = attr.value;
+  // this needs to be lazy-evaled because vue may be required before
+  // vue-server-renderer can set VUE_ENV
+  var _isServer;
+  var isServerRendering = function () {
+    if (_isServer === undefined) {
+      /* istanbul ignore if */
+      if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+        // detect presence of vue-server-renderer and avoid
+        // Webpack shimming the process
+        _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+      } else {
+        _isServer = false;
       }
     }
+    return _isServer
+  };
+
+  // detect devtools
+  var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+  /* istanbul ignore next */
+  function isNative (Ctor) {
+    return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
   }
 
-  function end (tag, start, end) {
-    if (depth === 1 && currentBlock) {
-      currentBlock.end = start;
-      var text = deIndent(content.slice(currentBlock.start, currentBlock.end));
-      // pad content so that linters and pre-processors can output correct
-      // line numbers in errors and warnings
-      if (currentBlock.type !== 'template' && options.pad) {
-        text = padContent(currentBlock, options.pad) + text;
+  var hasSymbol =
+    typeof Symbol !== 'undefined' && isNative(Symbol) &&
+    typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+  var _Set;
+  /* istanbul ignore if */ // $flow-disable-line
+  if (typeof Set !== 'undefined' && isNative(Set)) {
+    // use native Set when available.
+    _Set = Set;
+  } else {
+    // a non-standard Set polyfill that only works with primitive keys.
+    _Set = /*@__PURE__*/(function () {
+      function Set () {
+        this.set = Object.create(null);
       }
-      currentBlock.content = text;
-      currentBlock = null;
-    }
-    depth--;
-  }
+      Set.prototype.has = function has (key) {
+        return this.set[key] === true
+      };
+      Set.prototype.add = function add (key) {
+        this.set[key] = true;
+      };
+      Set.prototype.clear = function clear () {
+        this.set = Object.create(null);
+      };
 
-  function padContent (block, pad) {
-    if (pad === 'space') {
-      return content.slice(0, block.start).replace(replaceRE, ' ')
-    } else {
-      var offset = content.slice(0, block.start).split(splitRE$1).length;
-      var padChar = block.type === 'script' && !block.lang
-        ? '//\n'
-        : '\n';
-      return Array(offset).join(padChar)
-    }
+      return Set;
+    }());
   }
 
-  parseHTML(content, {
-    start: start,
-    end: end
-  });
+  var ASSET_TYPES = [
+    'component',
+    'directive',
+    'filter'
+  ];
 
-  return sfc
-}
+  var LIFECYCLE_HOOKS = [
+    'beforeCreate',
+    'created',
+    'beforeMount',
+    'mounted',
+    'beforeUpdate',
+    'updated',
+    'beforeDestroy',
+    'destroyed',
+    'activated',
+    'deactivated',
+    'errorCaptured'
+  ];
 
-/*  */
+  /*  */
 
-/**
- * Check if a string starts with $ or _
- */
 
 
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
+  var config = ({
+    /**
+     * Option merge strategies (used in core/util/options)
+     */
+    // $flow-disable-line
+    optionMergeStrategies: Object.create(null),
+
+    /**
+     * Whether to suppress warnings.
+     */
+    silent: false,
+
+    /**
+     * Show production mode tip message on boot?
+     */
+    productionTip: "development" !== 'production',
+
+    /**
+     * Whether to enable devtools
+     */
+    devtools: "development" !== 'production',
+
+    /**
+     * Whether to record perf
+     */
+    performance: false,
+
+    /**
+     * Error handler for watcher errors
+     */
+    errorHandler: null,
+
+    /**
+     * Warn handler for watcher warns
+     */
+    warnHandler: null,
+
+    /**
+     * Ignore certain custom elements
+     */
+    ignoredElements: [],
+
+    /**
+     * Custom user key aliases for v-on
+     */
+    // $flow-disable-line
+    keyCodes: Object.create(null),
+
+    /**
+     * Check if a tag is reserved so that it cannot be registered as a
+     * component. This is platform-dependent and may be overwritten.
+     */
+    isReservedTag: no,
+
+    /**
+     * Check if an attribute is reserved so that it cannot be used as a component
+     * prop. This is platform-dependent and may be overwritten.
+     */
+    isReservedAttr: no,
+
+    /**
+     * Check if a tag is an unknown element.
+     * Platform-dependent.
+     */
+    isUnknownElement: no,
+
+    /**
+     * Get the namespace of an element
+     */
+    getTagNamespace: noop,
+
+    /**
+     * Parse the real tag name for the specific platform.
+     */
+    parsePlatformTagName: identity,
+
+    /**
+     * Check if an attribute must be bound using property, e.g. value
+     * Platform-dependent.
+     */
+    mustUseProp: no,
+
+    /**
+     * Perform updates asynchronously. Intended to be used by Vue Test Utils
+     * This will significantly reduce performance if set to false.
+     */
+    async: true,
+
+    /**
+     * Exposed for legacy reasons
+     */
+    _lifecycleHooks: LIFECYCLE_HOOKS
   });
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  
-}
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
 
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
+  /*  */
 
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: "development" !== 'production',
+  var warn = noop;
+  var tip = noop;
+  var generateComponentTrace = (noop); // work around flow check
+  var formatComponentName = (noop);
 
-  /**
-   * Whether to enable devtools
-   */
-  devtools: "development" !== 'production',
+  {
+    var hasConsole = typeof console !== 'undefined';
+    var classifyRE = /(?:^|[-_])(\w)/g;
+    var classify = function (str) { return str
+      .replace(classifyRE, function (c) { return c.toUpperCase(); })
+      .replace(/[-_]/g, ''); };
 
-  /**
-   * Whether to record perf
-   */
-  performance: false,
+    warn = function (msg, vm) {
+      var trace = vm ? generateComponentTrace(vm) : '';
 
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
+      if (hasConsole && (!config.silent)) {
+        console.error(("[Vue warn]: " + msg + trace));
+      }
+    };
 
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
+    tip = function (msg, vm) {
+      if (hasConsole && (!config.silent)) {
+        console.warn("[Vue tip]: " + msg + (
+          vm ? generateComponentTrace(vm) : ''
+        ));
+      }
+    };
 
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
+    formatComponentName = function (vm, includeFile) {
+      if (vm.$root === vm) {
+        return '<Root>'
+      }
+      var options = typeof vm === 'function' && vm.cid != null
+        ? vm.options
+        : vm._isVue
+          ? vm.$options || vm.constructor.options
+          : vm || {};
+      var name = options.name || options._componentTag;
+      var file = options.__file;
+      if (!name && file) {
+        var match = file.match(/([^/\\]+)\.vue$/);
+        name = match && match[1];
+      }
 
-  /**
-   * Custom user key aliases for v-on
-   */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
+      return (
+        (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+        (file && includeFile !== false ? (" at " + file) : '')
+      )
+    };
+
+    var repeat = function (str, n) {
+      var res = '';
+      while (n) {
+        if (n % 2 === 1) { res += str; }
+        if (n > 1) { str += str; }
+        n >>= 1;
+      }
+      return res
+    };
+
+    generateComponentTrace = function (vm) {
+      if (vm._isVue && vm.$parent) {
+        var tree = [];
+        var currentRecursiveSequence = 0;
+        while (vm) {
+          if (tree.length > 0) {
+            var last = tree[tree.length - 1];
+            if (last.constructor === vm.constructor) {
+              currentRecursiveSequence++;
+              vm = vm.$parent;
+              continue
+            } else if (currentRecursiveSequence > 0) {
+              tree[tree.length - 1] = [last, currentRecursiveSequence];
+              currentRecursiveSequence = 0;
+            }
+          }
+          tree.push(vm);
+          vm = vm.$parent;
+        }
+        return '\n\nfound in\n\n' + tree
+          .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+              ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+              : formatComponentName(vm))); })
+          .join('\n')
+      } else {
+        return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+      }
+    };
+  }
+
+  /*  */
+
+  var uid = 0;
 
   /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
+   * A dep is an observable that can have multiple
+   * directives subscribing to it.
    */
-  isReservedTag: no,
+  var Dep = function Dep () {
+    this.id = uid++;
+    this.subs = [];
+  };
 
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
+  Dep.prototype.addSub = function addSub (sub) {
+    this.subs.push(sub);
+  };
+
+  Dep.prototype.removeSub = function removeSub (sub) {
+    remove(this.subs, sub);
+  };
+
+  Dep.prototype.depend = function depend () {
+    if (Dep.target) {
+      Dep.target.addDep(this);
+    }
+  };
+
+  Dep.prototype.notify = function notify () {
+    // stabilize the subscriber list first
+    var subs = this.subs.slice();
+    for (var i = 0, l = subs.length; i < l; i++) {
+      subs[i].update();
+    }
+  };
+
+  // the current target watcher being evaluated.
+  // this is globally unique because there could be only one
+  // watcher being evaluated at any time.
+  Dep.target = null;
+
+  /*  */
+
+  var VNode = function VNode (
+    tag,
+    data,
+    children,
+    text,
+    elm,
+    context,
+    componentOptions,
+    asyncFactory
+  ) {
+    this.tag = tag;
+    this.data = data;
+    this.children = children;
+    this.text = text;
+    this.elm = elm;
+    this.ns = undefined;
+    this.context = context;
+    this.fnContext = undefined;
+    this.fnOptions = undefined;
+    this.fnScopeId = undefined;
+    this.key = data && data.key;
+    this.componentOptions = componentOptions;
+    this.componentInstance = undefined;
+    this.parent = undefined;
+    this.raw = false;
+    this.isStatic = false;
+    this.isRootInsert = true;
+    this.isComment = false;
+    this.isCloned = false;
+    this.isOnce = false;
+    this.asyncFactory = asyncFactory;
+    this.asyncMeta = undefined;
+    this.isAsyncPlaceholder = false;
+  };
+
+  var prototypeAccessors = { child: { configurable: true } };
+
+  // DEPRECATED: alias for componentInstance for backwards compat.
+  /* istanbul ignore next */
+  prototypeAccessors.child.get = function () {
+    return this.componentInstance
+  };
+
+  Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+  /*
+   * not type checking this file because flow doesn't play well with
+   * dynamically accessing methods on Array prototype
    */
-  isReservedAttr: no,
+
+  var arrayProto = Array.prototype;
+  var arrayMethods = Object.create(arrayProto);
+
+  var methodsToPatch = [
+    'push',
+    'pop',
+    'shift',
+    'unshift',
+    'splice',
+    'sort',
+    'reverse'
+  ];
 
   /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
+   * Intercept mutating methods and emit events
    */
-  isUnknownElement: no,
+  methodsToPatch.forEach(function (method) {
+    // cache original method
+    var original = arrayProto[method];
+    def(arrayMethods, method, function mutator () {
+      var args = [], len = arguments.length;
+      while ( len-- ) args[ len ] = arguments[ len ];
+
+      var result = original.apply(this, args);
+      var ob = this.__ob__;
+      var inserted;
+      switch (method) {
+        case 'push':
+        case 'unshift':
+          inserted = args;
+          break
+        case 'splice':
+          inserted = args.slice(2);
+          break
+      }
+      if (inserted) { ob.observeArray(inserted); }
+      // notify change
+      ob.dep.notify();
+      return result
+    });
+  });
+
+  /*  */
+
+  var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
 
   /**
-   * Get the namespace of an element
+   * In some cases we may want to disable observation inside a component's
+   * update computation.
    */
-  getTagNamespace: noop,
+  var shouldObserve = true;
 
   /**
-   * Parse the real tag name for the specific platform.
+   * Observer class that is attached to each observed
+   * object. Once attached, the observer converts the target
+   * object's property keys into getter/setters that
+   * collect dependencies and dispatch updates.
    */
-  parsePlatformTagName: identity,
+  var Observer = function Observer (value) {
+    this.value = value;
+    this.dep = new Dep();
+    this.vmCount = 0;
+    def(value, '__ob__', this);
+    if (Array.isArray(value)) {
+      if (hasProto) {
+        protoAugment(value, arrayMethods);
+      } else {
+        copyAugment(value, arrayMethods, arrayKeys);
+      }
+      this.observeArray(value);
+    } else {
+      this.walk(value);
+    }
+  };
 
   /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
+   * Walk through all properties and convert them into
+   * getter/setters. This method should only be called when
+   * value type is Object.
    */
-  mustUseProp: no,
+  Observer.prototype.walk = function walk (obj) {
+    var keys = Object.keys(obj);
+    for (var i = 0; i < keys.length; i++) {
+      defineReactive$$1(obj, keys[i]);
+    }
+  };
 
   /**
-   * Exposed for legacy reasons
+   * Observe a list of Array items.
    */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-})
-
-/*  */
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
+  Observer.prototype.observeArray = function observeArray (items) {
+    for (var i = 0, l = items.length; i < l; i++) {
+      observe(items[i]);
+    }
+  };
 
-{
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
+  // helpers
 
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
+  /**
+   * Augment a target Object or Array by intercepting
+   * the prototype chain using __proto__
+   */
+  function protoAugment (target, src) {
+    /* eslint-disable no-proto */
+    target.__proto__ = src;
+    /* eslint-enable no-proto */
+  }
 
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
+  /**
+   * Augment a target Object or Array by defining
+   * hidden properties.
+   */
+  /* istanbul ignore next */
+  function copyAugment (target, src, keys) {
+    for (var i = 0, l = keys.length; i < l; i++) {
+      var key = keys[i];
+      def(target, key, src[key]);
     }
-  };
+  }
 
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
+  /**
+   * Attempt to create an observer instance for a value,
+   * returns the new observer if successfully observed,
+   * or the existing observer if the value already has one.
+   */
+  function observe (value, asRootData) {
+    if (!isObject(value) || value instanceof VNode) {
+      return
     }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
+    var ob;
+    if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+      ob = value.__ob__;
+    } else if (
+      shouldObserve &&
+      !isServerRendering() &&
+      (Array.isArray(value) || isPlainObject(value)) &&
+      Object.isExtensible(value) &&
+      !value._isVue
+    ) {
+      ob = new Observer(value);
     }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
+    if (asRootData && ob) {
+      ob.vmCount++;
     }
+    return ob
+  }
 
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
+  /**
+   * Define a reactive property on an Object.
+   */
+  function defineReactive$$1 (
+    obj,
+    key,
+    val,
+    customSetter,
+    shallow
+  ) {
+    var dep = new Dep();
 
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
+    var property = Object.getOwnPropertyDescriptor(obj, key);
+    if (property && property.configurable === false) {
+      return
     }
-    return res
-  };
 
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
-/*  */
-
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-
-
-
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
+    // cater for pre-defined getter/setters
+    var getter = property && property.get;
+    var setter = property && property.set;
+    if ((!getter || setter) && arguments.length === 2) {
+      val = obj[key];
     }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through each property and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment an target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src, keys) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment an target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
+
+    var childOb = !shallow && observe(val);
+    Object.defineProperty(obj, key, {
+      enumerable: true,
+      configurable: true,
+      get: function reactiveGetter () {
+        var value = getter ? getter.call(obj) : val;
+        if (Dep.target) {
+          dep.depend();
+          if (childOb) {
+            childOb.dep.depend();
+            if (Array.isArray(value)) {
+              dependArray(value);
+            }
           }
         }
+        return value
+      },
+      set: function reactiveSetter (newVal) {
+        var value = getter ? getter.call(obj) : val;
+        /* eslint-disable no-self-compare */
+        if (newVal === value || (newVal !== newVal && value !== value)) {
+          return
+        }
+        /* eslint-enable no-self-compare */
+        if (customSetter) {
+          customSetter();
+        }
+        // #7981: for accessor properties without setter
+        if (getter && !setter) { return }
+        if (setter) {
+          setter.call(obj, newVal);
+        } else {
+          val = newVal;
+        }
+        childOb = !shallow && observe(newVal);
+        dep.notify();
       }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if ("development" !== 'production' && customSetter) {
-        customSetter();
-      }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if ("development" !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
+    });
   }
-  defineReactive(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
 
-/**
- * Delete a property and trigger change if necessary.
- */
-
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
+  /**
+   * Set a property on an object. Adds the new property and
+   * triggers change notification if the property doesn't
+   * already exist.
+   */
+  function set (target, key, val) {
+    if (isUndef(target) || isPrimitive(target)
+    ) {
+      warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
     }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-{
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
+    if (Array.isArray(target) && isValidArrayIndex(key)) {
+      target.length = Math.max(target.length, key);
+      target.splice(key, 1, val);
+      return val
+    }
+    if (key in target && !(key in Object.prototype)) {
+      target[key] = val;
+      return val
+    }
+    var ob = (target).__ob__;
+    if (target._isVue || (ob && ob.vmCount)) {
       warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
+        'Avoid adding reactive properties to a Vue instance or its root $data ' +
+        'at runtime - declare it upfront in the data option.'
       );
+      return val
     }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
+    if (!ob) {
+      target[key] = val;
+      return val
     }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
+    defineReactive$$1(ob.value, key, val);
+    ob.dep.notify();
+    return val
+  }
+
+  /**
+   * Collect dependencies on array elements when the array is touched, since
+   * we cannot intercept array element access like property getters.
+   */
+  function dependArray (value) {
+    for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+      e = value[i];
+      e && e.__ob__ && e.__ob__.dep.depend();
+      if (Array.isArray(e)) {
+        dependArray(e);
       }
     }
   }
-}
 
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      "development" !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
+  /*  */
 
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    "development" !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
+  /**
+   * Option overwriting strategies are functions that handle
+   * how to merge a parent option value and a child option
+   * value into the final value.
+   */
+  var strats = config.optionMergeStrategies;
+
+  /**
+   * Options with restrictions
+   */
   {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
+    strats.el = strats.propsData = function (parent, child, vm, key) {
+      if (!vm) {
+        warn(
+          "option \"" + key + "\" can only be used during instance " +
+          'creation with the `new` keyword.'
+        );
+      }
+      return defaultStrat(parent, child)
+    };
   }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-
-/*  */
-
-/*  */
-
-/*  */
-/* globals MessageChannel */
-
-var callbacks = [];
-function flushCallbacks () {
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  channel.port1.onmessage = flushCallbacks;
-  
-} else {
-  /* istanbul ignore next */
-  
-}
 
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  
-} else {
-  // fallback to macro
-  
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-
-/*  */
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-/*  */
-
-/*  */
-
-
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isPreTag = function (tag) { return tag === 'pre'; };
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-
-/*  */
-
-var validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters (exp) {
-  var inSingle = false;
-  var inDouble = false;
-  var inTemplateString = false;
-  var inRegex = false;
-  var curly = 0;
-  var square = 0;
-  var paren = 0;
-  var lastFilterIndex = 0;
-  var c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
-    } else if (
-      c === 0x7C && // pipe
-      exp.charCodeAt(i + 1) !== 0x7C &&
-      exp.charCodeAt(i - 1) !== 0x7C &&
-      !curly && !square && !paren
-    ) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
+  /**
+   * Helper that recursively merges two data objects together.
+   */
+  function mergeData (to, from) {
+    if (!from) { return to }
+    var key, toVal, fromVal;
+    var keys = Object.keys(from);
+    for (var i = 0; i < keys.length; i++) {
+      key = keys[i];
+      toVal = to[key];
+      fromVal = from[key];
+      if (!hasOwn(to, key)) {
+        set(to, key, fromVal);
+      } else if (
+        toVal !== fromVal &&
+        isPlainObject(toVal) &&
+        isPlainObject(fromVal)
+      ) {
+        mergeData(toVal, fromVal);
       }
-    } else {
-      switch (c) {
-        case 0x22: inDouble = true; break         // "
-        case 0x27: inSingle = true; break         // '
-        case 0x60: inTemplateString = true; break // `
-        case 0x28: paren++; break                 // (
-        case 0x29: paren--; break                 // )
-        case 0x5B: square++; break                // [
-        case 0x5D: square--; break                // ]
-        case 0x7B: curly++; break                 // {
-        case 0x7D: curly--; break                 // }
+    }
+    return to
+  }
+
+  /**
+   * Data
+   */
+  function mergeDataOrFn (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      // in a Vue.extend merge, both should be functions
+      if (!childVal) {
+        return parentVal
       }
-      if (c === 0x2f) { // /
-        var j = i - 1;
-        var p = (void 0);
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') { break }
-        }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
+      if (!parentVal) {
+        return childVal
+      }
+      // when parentVal & childVal are both present,
+      // we need to return a function that returns the
+      // merged result of both functions... no need to
+      // check if parentVal is a function here because
+      // it has to be a function to pass previous merges.
+      return function mergedDataFn () {
+        return mergeData(
+          typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+          typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+        )
+      }
+    } else {
+      return function mergedInstanceDataFn () {
+        // instance merge
+        var instanceData = typeof childVal === 'function'
+          ? childVal.call(vm, vm)
+          : childVal;
+        var defaultData = typeof parentVal === 'function'
+          ? parentVal.call(vm, vm)
+          : parentVal;
+        if (instanceData) {
+          return mergeData(instanceData, defaultData)
+        } else {
+          return defaultData
         }
       }
     }
   }
 
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
-  }
+  strats.data = function (
+    parentVal,
+    childVal,
+    vm
+  ) {
+    if (!vm) {
+      if (childVal && typeof childVal !== 'function') {
+        warn(
+          'The "data" option should be a function ' +
+          'that returns a per-instance value in component ' +
+          'definitions.',
+          vm
+        );
+
+        return parentVal
+      }
+      return mergeDataOrFn(parentVal, childVal)
+    }
+
+    return mergeDataOrFn(parentVal, childVal, vm)
+  };
 
-  function pushFilter () {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
+  /**
+   * Hooks and props are merged as arrays.
+   */
+  function mergeHook (
+    parentVal,
+    childVal
+  ) {
+    return childVal
+      ? parentVal
+        ? parentVal.concat(childVal)
+        : Array.isArray(childVal)
+          ? childVal
+          : [childVal]
+      : parentVal
   }
 
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
+  LIFECYCLE_HOOKS.forEach(function (hook) {
+    strats[hook] = mergeHook;
+  });
+
+  /**
+   * Assets
+   *
+   * When a vm is present (instance creation), we need to do
+   * a three-way merge between constructor options, instance
+   * options and parent options.
+   */
+  function mergeAssets (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    var res = Object.create(parentVal || null);
+    if (childVal) {
+      assertObjectType(key, childVal, vm);
+      return extend(res, childVal)
+    } else {
+      return res
     }
   }
 
-  return expression
-}
+  ASSET_TYPES.forEach(function (type) {
+    strats[type + 's'] = mergeAssets;
+  });
 
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
-  }
-}
-
-/*  */
-
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
-var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-var buildRegex = cached(function (delimiters) {
-  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-});
-
-
-
-function parseText (
-  text,
-  delimiters
-) {
-  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return
-  }
-  var tokens = [];
-  var rawTokens = [];
-  var lastIndex = tagRE.lastIndex = 0;
-  var match, index, tokenValue;
-  while ((match = tagRE.exec(text))) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      rawTokens.push(tokenValue = text.slice(lastIndex, index));
-      tokens.push(JSON.stringify(tokenValue));
+  /**
+   * Watchers.
+   *
+   * Watchers hashes should not overwrite one
+   * another, so we merge them as arrays.
+   */
+  strats.watch = function (
+    parentVal,
+    childVal,
+    vm,
+    key
+  ) {
+    // work around Firefox's Object.prototype.watch...
+    if (parentVal === nativeWatch) { parentVal = undefined; }
+    if (childVal === nativeWatch) { childVal = undefined; }
+    /* istanbul ignore if */
+    if (!childVal) { return Object.create(parentVal || null) }
+    {
+      assertObjectType(key, childVal, vm);
     }
-    // tag token
-    var exp = parseFilters(match[1].trim());
-    tokens.push(("_s(" + exp + ")"));
-    rawTokens.push({ '@binding': exp });
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    rawTokens.push(tokenValue = text.slice(lastIndex));
-    tokens.push(JSON.stringify(tokenValue));
-  }
-  return {
-    expression: tokens.join('+'),
-    tokens: rawTokens
-  }
-}
-
-/*  */
-
-function baseWarn (msg) {
-  console.error(("[Vue compiler]: " + msg));
-}
-
-function pluckModuleFunction (
-  modules,
-  key
-) {
-  return modules
-    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
-    : []
-}
-
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-// add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
-function addDirective (
-  el,
-  name,
-  rawName,
-  value,
-  arg,
-  modifiers
-) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
-  el.plain = false;
-}
-
-function addHandler (
-  el,
-  name,
-  value,
-  modifiers,
-  important,
-  warn
-) {
-  modifiers = modifiers || emptyObject;
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (
-    "development" !== 'production' && warn &&
-    modifiers.prevent && modifiers.passive
+    if (!parentVal) { return childVal }
+    var ret = {};
+    extend(ret, parentVal);
+    for (var key$1 in childVal) {
+      var parent = ret[key$1];
+      var child = childVal[key$1];
+      if (parent && !Array.isArray(parent)) {
+        parent = [parent];
+      }
+      ret[key$1] = parent
+        ? parent.concat(child)
+        : Array.isArray(child) ? child : [child];
+    }
+    return ret
+  };
+
+  /**
+   * Other object hashes.
+   */
+  strats.props =
+  strats.methods =
+  strats.inject =
+  strats.computed = function (
+    parentVal,
+    childVal,
+    vm,
+    key
   ) {
-    warn(
-      'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
-    );
-  }
+    if (childVal && "development" !== 'production') {
+      assertObjectType(key, childVal, vm);
+    }
+    if (!parentVal) { return childVal }
+    var ret = Object.create(null);
+    extend(ret, parentVal);
+    if (childVal) { extend(ret, childVal); }
+    return ret
+  };
+  strats.provide = mergeDataOrFn;
 
-  // check capture modifier
-  if (modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
-  }
-  /* istanbul ignore if */
-  if (modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
+  /**
+   * Default strategy.
+   */
+  var defaultStrat = function (parentVal, childVal) {
+    return childVal === undefined
+      ? parentVal
+      : childVal
+  };
+
+  function assertObjectType (name, value, vm) {
+    if (!isPlainObject(value)) {
+      warn(
+        "Invalid value for option \"" + name + "\": expected an Object, " +
+        "but got " + (toRawType(value)) + ".",
+        vm
+      );
+    }
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
+  /*  */
+
+  /*  */
+
+  /*  */
+
+  var callbacks = [];
+
+  function flushCallbacks () {
+    var copies = callbacks.slice(0);
+    callbacks.length = 0;
+    for (var i = 0; i < copies.length; i++) {
+      copies[i]();
     }
   }
 
-  var events;
-  if (modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
+  // Determine (macro) task defer implementation.
+  // Technically setImmediate should be the ideal choice, but it's only available
+  // in IE. The only polyfill that consistently queues the callback after all DOM
+  // events triggered in the same loop is by using MessageChannel.
+  /* istanbul ignore if */
+  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
+    isNative(MessageChannel) ||
+    // PhantomJS
+    MessageChannel.toString() === '[object MessageChannelConstructor]'
+  )) {
+    var channel = new MessageChannel();
+    channel.port1.onmessage = flushCallbacks;
   }
 
-  var newHandler = {
-    value: value.trim()
+  // Determine microtask defer implementation.
+  /* istanbul ignore next, $flow-disable-line */
+  if (typeof Promise !== 'undefined' && isNative(Promise)) ;
+
+  /*  */
+
+  /*  */
+
+  // these are reserved for web because they are directly compiled away
+  // during template compilation
+  var isReservedAttr = makeMap('style,class');
+
+  // attributes that should be using props for binding
+  var acceptValue = makeMap('input,textarea,option,select,progress');
+  var mustUseProp = function (tag, type, attr) {
+    return (
+      (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+      (attr === 'selected' && tag === 'option') ||
+      (attr === 'checked' && tag === 'input') ||
+      (attr === 'muted' && tag === 'video')
+    )
+  };
+
+  var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+  var isBooleanAttr = makeMap(
+    'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+    'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+    'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+    'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+    'required,reversed,scoped,seamless,selected,sortable,translate,' +
+    'truespeed,typemustmatch,visible'
+  );
+
+  /*  */
+
+  /*  */
+
+  var isHTMLTag = makeMap(
+    'html,body,base,head,link,meta,style,title,' +
+    'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+    'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+    'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+    's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+    'embed,object,param,source,canvas,script,noscript,del,ins,' +
+    'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+    'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+    'output,progress,select,textarea,' +
+    'details,dialog,menu,menuitem,summary,' +
+    'content,element,shadow,template,blockquote,iframe,tfoot'
+  );
+
+  // this map is intentionally selective, only covering SVG elements that may
+  // contain child elements.
+  var isSVG = makeMap(
+    'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+    'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+    'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+    true
+  );
+
+  var isPreTag = function (tag) { return tag === 'pre'; };
+
+  var isReservedTag = function (tag) {
+    return isHTMLTag(tag) || isSVG(tag)
   };
-  if (modifiers !== emptyObject) {
-    newHandler.modifiers = modifiers;
+
+  function getTagNamespace (tag) {
+    if (isSVG(tag)) {
+      return 'svg'
+    }
+    // basic support for MathML
+    // note it doesn't support other MathML elements being component roots
+    if (tag === 'math') {
+      return 'math'
+    }
   }
 
-  var handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-
-  el.plain = false;
-}
-
-function getBindingAttr (
-  el,
-  name,
-  getStatic
-) {
-  var dynamicValue =
-    getAndRemoveAttr(el, ':' + name) ||
-    getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue)
-  } else if (getStatic !== false) {
-    var staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue)
-    }
-  }
-}
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-function getAndRemoveAttr (
-  el,
-  name,
-  removeFromMap
-) {
-  var val;
-  if ((val = el.attrsMap[name]) != null) {
+  var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+  /*  */
+
+  /*  */
+
+  var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+  function parseFilters (exp) {
+    var inSingle = false;
+    var inDouble = false;
+    var inTemplateString = false;
+    var inRegex = false;
+    var curly = 0;
+    var square = 0;
+    var paren = 0;
+    var lastFilterIndex = 0;
+    var c, prev, i, expression, filters;
+
+    for (i = 0; i < exp.length; i++) {
+      prev = c;
+      c = exp.charCodeAt(i);
+      if (inSingle) {
+        if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+      } else if (inDouble) {
+        if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+      } else if (inTemplateString) {
+        if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+      } else if (inRegex) {
+        if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+      } else if (
+        c === 0x7C && // pipe
+        exp.charCodeAt(i + 1) !== 0x7C &&
+        exp.charCodeAt(i - 1) !== 0x7C &&
+        !curly && !square && !paren
+      ) {
+        if (expression === undefined) {
+          // first filter, end of expression
+          lastFilterIndex = i + 1;
+          expression = exp.slice(0, i).trim();
+        } else {
+          pushFilter();
+        }
+      } else {
+        switch (c) {
+          case 0x22: inDouble = true; break         // "
+          case 0x27: inSingle = true; break         // '
+          case 0x60: inTemplateString = true; break // `
+          case 0x28: paren++; break                 // (
+          case 0x29: paren--; break                 // )
+          case 0x5B: square++; break                // [
+          case 0x5D: square--; break                // ]
+          case 0x7B: curly++; break                 // {
+          case 0x7D: curly--; break                 // }
+        }
+        if (c === 0x2f) { // /
+          var j = i - 1;
+          var p = (void 0);
+          // find first non-whitespace prev char
+          for (; j >= 0; j--) {
+            p = exp.charAt(j);
+            if (p !== ' ') { break }
+          }
+          if (!p || !validDivisionCharRE.test(p)) {
+            inRegex = true;
+          }
+        }
+      }
+    }
+
+    if (expression === undefined) {
+      expression = exp.slice(0, i).trim();
+    } else if (lastFilterIndex !== 0) {
+      pushFilter();
+    }
+
+    function pushFilter () {
+      (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+      lastFilterIndex = i + 1;
+    }
+
+    if (filters) {
+      for (i = 0; i < filters.length; i++) {
+        expression = wrapFilter(expression, filters[i]);
+      }
+    }
+
+    return expression
+  }
+
+  function wrapFilter (exp, filter) {
+    var i = filter.indexOf('(');
+    if (i < 0) {
+      // _f: resolveFilter
+      return ("_f(\"" + filter + "\")(" + exp + ")")
+    } else {
+      var name = filter.slice(0, i);
+      var args = filter.slice(i + 1);
+      return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
+    }
+  }
+
+  /*  */
+
+  var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
+  var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+  var buildRegex = cached(function (delimiters) {
+    var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+    var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+    return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+  });
+
+
+
+  function parseText (
+    text,
+    delimiters
+  ) {
+    var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+    if (!tagRE.test(text)) {
+      return
+    }
+    var tokens = [];
+    var rawTokens = [];
+    var lastIndex = tagRE.lastIndex = 0;
+    var match, index, tokenValue;
+    while ((match = tagRE.exec(text))) {
+      index = match.index;
+      // push text token
+      if (index > lastIndex) {
+        rawTokens.push(tokenValue = text.slice(lastIndex, index));
+        tokens.push(JSON.stringify(tokenValue));
+      }
+      // tag token
+      var exp = parseFilters(match[1].trim());
+      tokens.push(("_s(" + exp + ")"));
+      rawTokens.push({ '@binding': exp });
+      lastIndex = index + match[0].length;
+    }
+    if (lastIndex < text.length) {
+      rawTokens.push(tokenValue = text.slice(lastIndex));
+      tokens.push(JSON.stringify(tokenValue));
+    }
+    return {
+      expression: tokens.join('+'),
+      tokens: rawTokens
+    }
+  }
+
+  /*  */
+
+  function baseWarn (msg) {
+    console.error(("[Vue compiler]: " + msg));
+  }
+
+  function pluckModuleFunction (
+    modules,
+    key
+  ) {
+    return modules
+      ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+      : []
+  }
+
+  function addProp (el, name, value) {
+    (el.props || (el.props = [])).push({ name: name, value: value });
+    el.plain = false;
+  }
+
+  function addAttr (el, name, value) {
+    (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+    el.plain = false;
+  }
+
+  // add a raw attr (use this in preTransforms)
+  function addRawAttr (el, name, value) {
+    el.attrsMap[name] = value;
+    el.attrsList.push({ name: name, value: value });
+  }
+
+  function addDirective (
+    el,
+    name,
+    rawName,
+    value,
+    arg,
+    modifiers
+  ) {
+    (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+    el.plain = false;
+  }
+
+  function addHandler (
+    el,
+    name,
+    value,
+    modifiers,
+    important,
+    warn
+  ) {
+    modifiers = modifiers || emptyObject;
+    // warn prevent and passive modifier
+    /* istanbul ignore if */
+    if (
+      warn &&
+      modifiers.prevent && modifiers.passive
+    ) {
+      warn(
+        'passive and prevent can\'t be used together. ' +
+        'Passive handler can\'t prevent default event.'
+      );
+    }
+
+    // normalize click.right and click.middle since they don't actually fire
+    // this is technically browser-specific, but at least for now browsers are
+    // the only target envs that have right/middle clicks.
+    if (name === 'click') {
+      if (modifiers.right) {
+        name = 'contextmenu';
+        delete modifiers.right;
+      } else if (modifiers.middle) {
+        name = 'mouseup';
+      }
+    }
+
+    // check capture modifier
+    if (modifiers.capture) {
+      delete modifiers.capture;
+      name = '!' + name; // mark the event as captured
+    }
+    if (modifiers.once) {
+      delete modifiers.once;
+      name = '~' + name; // mark the event as once
+    }
+    /* istanbul ignore if */
+    if (modifiers.passive) {
+      delete modifiers.passive;
+      name = '&' + name; // mark the event as passive
+    }
+
+    var events;
+    if (modifiers.native) {
+      delete modifiers.native;
+      events = el.nativeEvents || (el.nativeEvents = {});
+    } else {
+      events = el.events || (el.events = {});
+    }
+
+    var newHandler = {
+      value: value.trim()
+    };
+    if (modifiers !== emptyObject) {
+      newHandler.modifiers = modifiers;
+    }
+
+    var handlers = events[name];
+    /* istanbul ignore if */
+    if (Array.isArray(handlers)) {
+      important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+    } else if (handlers) {
+      events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+    } else {
+      events[name] = newHandler;
+    }
+
+    el.plain = false;
+  }
+
+  function getBindingAttr (
+    el,
+    name,
+    getStatic
+  ) {
+    var dynamicValue =
+      getAndRemoveAttr(el, ':' + name) ||
+      getAndRemoveAttr(el, 'v-bind:' + name);
+    if (dynamicValue != null) {
+      return parseFilters(dynamicValue)
+    } else if (getStatic !== false) {
+      var staticValue = getAndRemoveAttr(el, name);
+      if (staticValue != null) {
+        return JSON.stringify(staticValue)
+      }
+    }
+  }
+
+  // note: this only removes the attr from the Array (attrsList) so that it
+  // doesn't get processed by processAttrs.
+  // By default it does NOT remove it from the map (attrsMap) because the map is
+  // needed during codegen.
+  function getAndRemoveAttr (
+    el,
+    name,
+    removeFromMap
+  ) {
+    var val;
+    if ((val = el.attrsMap[name]) != null) {
+      var list = el.attrsList;
+      for (var i = 0, l = list.length; i < l; i++) {
+        if (list[i].name === name) {
+          list.splice(i, 1);
+          break
+        }
+      }
+    }
+    if (removeFromMap) {
+      delete el.attrsMap[name];
+    }
+    return val
+  }
+
+  /*  */
+
+  function transformNode (el, options) {
+    var warn = options.warn || baseWarn;
+    var staticClass = getAndRemoveAttr(el, 'class');
+    if (staticClass) {
+      var res = parseText(staticClass, options.delimiters);
+      if (res) {
+        warn(
+          "class=\"" + staticClass + "\": " +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div class="{{ val }}">, use <div :class="val">.'
+        );
+      }
+    }
+    if (staticClass) {
+      el.staticClass = JSON.stringify(staticClass);
+    }
+    var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+    if (classBinding) {
+      el.classBinding = classBinding;
+    }
+  }
+
+  function genData (el) {
+    var data = '';
+    if (el.staticClass) {
+      data += "staticClass:" + (el.staticClass) + ",";
+    }
+    if (el.classBinding) {
+      data += "class:" + (el.classBinding) + ",";
+    }
+    return data
+  }
+
+  var klass = {
+    staticKeys: ['staticClass'],
+    transformNode: transformNode,
+    genData: genData
+  };
+
+  /*  */
+
+  var parseStyleText = cached(function (cssText) {
+    var res = {};
+    var listDelimiter = /;(?![^(]*\))/g;
+    var propertyDelimiter = /:(.+)/;
+    cssText.split(listDelimiter).forEach(function (item) {
+      if (item) {
+        var tmp = item.split(propertyDelimiter);
+        tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+      }
+    });
+    return res
+  });
+
+  /*  */
+
+  function transformNode$1 (el, options) {
+    var warn = options.warn || baseWarn;
+    var staticStyle = getAndRemoveAttr(el, 'style');
+    if (staticStyle) {
+      /* istanbul ignore if */
+      {
+        var res = parseText(staticStyle, options.delimiters);
+        if (res) {
+          warn(
+            "style=\"" + staticStyle + "\": " +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div style="{{ val }}">, use <div :style="val">.'
+          );
+        }
+      }
+      el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+    }
+
+    var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+    if (styleBinding) {
+      el.styleBinding = styleBinding;
+    }
+  }
+
+  function genData$1 (el) {
+    var data = '';
+    if (el.staticStyle) {
+      data += "staticStyle:" + (el.staticStyle) + ",";
+    }
+    if (el.styleBinding) {
+      data += "style:(" + (el.styleBinding) + "),";
+    }
+    return data
+  }
+
+  var style = {
+    staticKeys: ['staticStyle'],
+    transformNode: transformNode$1,
+    genData: genData$1
+  };
+
+  var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+  function createCommonjsModule(fn, module) {
+  	return module = { exports: {} }, fn(module, module.exports), module.exports;
+  }
+
+  var he = createCommonjsModule(function (module, exports) {
+  (function(root) {
+
+  	// Detect free variables `exports`.
+  	var freeExports = exports;
+
+  	// Detect free variable `module`.
+  	var freeModule = module &&
+  		module.exports == freeExports && module;
+
+  	// Detect free variable `global`, from Node.js or Browserified code,
+  	// and use it as `root`.
+  	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
+  	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
+  		root = freeGlobal;
+  	}
+
+  	/*--------------------------------------------------------------------------*/
+
+  	// All astral symbols.
+  	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
+  	// All ASCII symbols (not just printable ASCII) except those listed in the
+  	// first column of the overrides table.
+  	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
+  	var regexAsciiWhitelist = /[\x01-\x7F]/g;
+  	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
+  	// code points listed in the first column of the overrides table on
+  	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
+  	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
+
+  	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
+  	var encodeMap = {'\xAD':'shy','\u200C':'zwnj','\u200D':'zwj','\u200E':'lrm','\u2063':'ic','\u2062':'it','\u2061':'af','\u200F':'rlm','\u200B':'ZeroWidthSpace','\u2060':'NoBreak','\u0311':'DownBreve','\u20DB':'tdot','\u20DC':'DotDot','\t':'Tab','\n':'NewLine','\u2008':'puncsp','\u205F':'MediumSpace','\u2009':'thinsp','\u200A':'hairsp','\u2004':'emsp13','\u2002':'ensp','\u2005':'emsp14','\u2003':'emsp','\u2007':'numsp','\xA0':'nbsp','\u205F\u200A':'ThickSpace','\u203E':'oline','_':'lowbar','\u2010':'dash','\u2013':'ndash','\u2014':'mdash','\u2015':'horbar',',':'comma',';':'semi','\u204F':'bsemi',':':'colon','\u2A74':'Colone','!':'excl','\xA1':'iexcl','?':'quest','\xBF':'iquest','.':'period','\u2025':'nldr','\u2026':'mldr','\xB7':'middot','\'':'apos','\u2018':'lsquo','\u2019':'rsquo','\u201A':'sbquo','\u2039':'lsaquo','\u203A':'rsaquo','"':'quot','\u201C':'ldquo','\u201D':'rdquo','\u201E':'bdquo','\xAB':'laquo','\xBB':'raquo','(':'lpar',')':'rpar','[':'lsqb',']':'rsqb','{':'lcub','}':'rcub','\u2308':'lceil','\u2309':'rceil','\u230A':'lfloor','\u230B':'rfloor','\u2985':'lopar','\u2986':'ropar','\u298B':'lbrke','\u298C':'rbrke','\u298D':'lbrkslu','\u298E':'rbrksld','\u298F':'lbrksld','\u2990':'rbrkslu','\u2991':'langd','\u2992':'rangd','\u2993':'lparlt','\u2994':'rpargt','\u2995':'gtlPar','\u2996':'ltrPar','\u27E6':'lobrk','\u27E7':'robrk','\u27E8':'lang','\u27E9':'rang','\u27EA':'Lang','\u27EB':'Rang','\u27EC':'loang','\u27ED':'roang','\u2772':'lbbrk','\u2773':'rbbrk','\u2016':'Vert','\xA7':'sect','\xB6':'para','@':'commat','*':'ast','/':'sol','undefined':null,'&':'amp','#':'num','%':'percnt','\u2030':'permil','\u2031':'pertenk','\u2020':'dagger','\u2021':'Dagger','\u2022':'bull','\u2043':'hybull','\u2032':'prime','\u2033':'Prime','\u2034':'tprime','\u2057':'qprime','\u2035':'bprime','\u2041':'caret','`':'grave','\xB4':'acute','\u02DC':'tilde','^':'Hat','\xAF':'macr','\u02D8':'breve','\u02D9':'dot','\xA8':'die','\u02DA':'ring','\u02DD':'dblac','\xB8':'cedil','\u02DB':'ogon','\u02C6':'circ','\u02C7':'caron','\xB0':'deg','\xA9':'copy','\xAE':'reg','\u2117':'copysr','\u2118':'wp','\u211E':'rx','\u2127':'mho','\u2129':'iiota','\u2190':'larr','\u219A':'nlarr','\u2192':'rarr','\u219B':'nrarr','\u2191':'uarr','\u2193':'darr','\u2194':'harr','\u21AE':'nharr','\u2195':'varr','\u2196':'nwarr','\u2197':'nearr','\u2198':'searr','\u2199':'swarr','\u219D':'rarrw','\u219D\u0338':'nrarrw','\u219E':'Larr','\u219F':'Uarr','\u21A0':'Rarr','\u21A1':'Darr','\u21A2':'larrtl','\u21A3':'rarrtl','\u21A4':'mapstoleft','\u21A5':'mapstoup','\u21A6':'map','\u21A7':'mapstodown','\u21A9':'larrhk','\u21AA':'rarrhk','\u21AB':'larrlp','\u21AC':'rarrlp','\u21AD':'harrw','\u21B0':'lsh','\u21B1':'rsh','\u21B2':'ldsh','\u21B3':'rdsh','\u21B5':'crarr','\u21B6':'cularr','\u21B7':'curarr','\u21BA':'olarr','\u21BB':'orarr','\u21BC':'lharu','\u21BD':'lhard','\u21BE':'uharr','\u21BF':'uharl','\u21C0':'rharu','\u21C1':'rhard','\u21C2':'dharr','\u21C3':'dharl','\u21C4':'rlarr','\u21C5':'udarr','\u21C6':'lrarr','\u21C7':'llarr','\u21C8':'uuarr','\u21C9':'rrarr','\u21CA':'ddarr','\u21CB':'lrhar','\u21CC':'rlhar','\u21D0':'lArr','\u21CD':'nlArr','\u21D1':'uArr','\u21D2':'rArr','\u21CF':'nrArr','\u21D3':'dArr','\u21D4':'iff','\u21CE':'nhArr','\u21D5':'vArr','\u21D6':'nwArr','\u21D7':'neArr','\u21D8':'seArr','\u21D9':'swArr','\u21DA':'lAarr','\u21DB':'rAarr','\u21DD':'zigrarr','\u21E4':'larrb','\u21E5':'rarrb','\u21F5':'duarr','\u21FD':'loarr','\u21FE':'roarr','\u21FF':'hoarr','\u2200':'forall','\u2201':'comp','\u2202':'part','\u2202\u0338':'npart','\u2203':'exist','\u2204':'nexist','\u2205':'empty','\u2207':'Del','\u2208':'in','\u2209':'notin','\u220B':'ni','\u220C':'notni','\u03F6':'bepsi','\u220F':'prod','\u2210':'coprod','\u2211':'sum','+':'plus','\xB1':'pm','\xF7':'div','\xD7':'times','<':'lt','\u226E':'nlt','<\u20D2':'nvlt','=':'equals','\u2260':'ne','=\u20E5':'bne','\u2A75':'Equal','>':'gt','\u226F':'ngt','>\u20D2':'nvgt','\xAC':'not','|':'vert','\xA6':'brvbar','\u2212':'minus','\u2213':'mp','\u2214':'plusdo','\u2044':'frasl','\u2216':'setmn','\u2217':'lowast','\u2218':'compfn','\u221A':'Sqrt','\u221D':'prop','\u221E':'infin','\u221F':'angrt','\u2220':'ang','\u2220\u20D2':'nang','\u2221':'angmsd','\u2222':'angsph','\u2223':'mid','\u2224':'nmid','\u2225':'par','\u2226':'npar','\u2227':'and','\u2228':'or','\u2229':'cap','\u2229\uFE00':'caps','\u222A':'cup','\u222A\uFE00':'cups','\u222B':'int','\u222C':'Int','\u222D':'tint','\u2A0C':'qint','\u222E':'oint','\u222F':'Conint','\u2230':'Cconint','\u2231':'cwint','\u2232':'cwconint','\u2233':'awconint','\u2234':'there4','\u2235':'becaus','\u2236':'ratio','\u2237':'Colon','\u2238':'minusd','\u223A':'mDDot','\u223B':'homtht','\u223C':'sim','\u2241':'nsim','\u223C\u20D2':'nvsim','\u223D':'bsim','\u223D\u0331':'race','\u223E':'ac','\u223E\u0333':'acE','\u223F':'acd','\u2240':'wr','\u2242':'esim','\u2242\u0338':'nesim','\u2243':'sime','\u2244':'nsime','\u2245':'cong','\u2247':'ncong','\u2246':'simne','\u2248':'ap','\u2249':'nap','\u224A':'ape','\u224B':'apid','\u224B\u0338':'napid','\u224C':'bcong','\u224D':'CupCap','\u226D':'NotCupCap','\u224D\u20D2':'nvap','\u224E':'bump','\u224E\u0338':'nbump','\u224F':'bumpe','\u224F\u0338':'nbumpe','\u2250':'doteq','\u2250\u0338':'nedot','\u2251':'eDot','\u2252':'efDot','\u2253':'erDot','\u2254':'colone','\u2255':'ecolon','\u2256':'ecir','\u2257':'cire','\u2259':'wedgeq','\u225A':'veeeq','\u225C':'trie','\u225F':'equest','\u2261':'equiv','\u2262':'nequiv','\u2261\u20E5':'bnequiv','\u2264':'le','\u2270':'nle','\u2264\u20D2':'nvle','\u2265':'ge','\u2271':'nge','\u2265\u20D2':'nvge','\u2266':'lE','\u2266\u0338':'nlE','\u2267':'gE','\u2267\u0338':'ngE','\u2268\uFE00':'lvnE','\u2268':'lnE','\u2269':'gnE','\u2269\uFE00':'gvnE','\u226A':'ll','\u226A\u0338':'nLtv','\u226A\u20D2':'nLt','\u226B':'gg','\u226B\u0338':'nGtv','\u226B\u20D2':'nGt','\u226C':'twixt','\u2272':'lsim','\u2274':'nlsim','\u2273':'gsim','\u2275':'ngsim','\u2276':'lg','\u2278':'ntlg','\u2277':'gl','\u2279':'ntgl','\u227A':'pr','\u2280':'npr','\u227B':'sc','\u2281':'nsc','\u227C':'prcue','\u22E0':'nprcue','\u227D':'sccue','\u22E1':'nsccue','\u227E':'prsim','\u227F':'scsim','\u227F\u0338':'NotSucceedsTilde','\u2282':'sub','\u2284':'nsub','\u2282\u20D2':'vnsub','\u2283':'sup','\u2285':'nsup','\u2283\u20D2':'vnsup','\u2286':'sube','\u2288':'nsube','\u2287':'supe','\u2289':'nsupe','\u228A\uFE00':'vsubne','\u228A':'subne','\u228B\uFE00':'vsupne','\u228B':'supne','\u228D':'cupdot','\u228E':'uplus','\u228F':'sqsub','\u228F\u0338':'NotSquareSubset','\u2290':'sqsup','\u2290\u0338':'NotSquareSuperset','\u2291':'sqsube','\u22E2':'nsqsube','\u2292':'sqsupe','\u22E3':'nsqsupe','\u2293':'sqcap','\u2293\uFE00':'sqcaps','\u2294':'sqcup','\u2294\uFE00':'sqcups','\u2295':'oplus','\u2296':'ominus','\u2297':'otimes','\u2298':'osol','\u2299':'odot','\u229A':'ocir','\u229B':'oast','\u229D':'odash','\u229E':'plusb','\u229F':'minusb','\u22A0':'timesb','\u22A1':'sdotb','\u22A2':'vdash','\u22AC':'nvdash','\u22A3':'dashv','\u22A4':'top','\u22A5':'bot','\u22A7':'models','\u22A8':'vDash','\u22AD':'nvDash','\u22A9':'Vdash','\u22AE':'nVdash','\u22AA':'Vvdash','\u22AB':'VDash','\u22AF':'nVDash','\u22B0':'prurel','\u22B2':'vltri','\u22EA':'nltri','\u22B3':'vrtri','\u22EB':'nrtri','\u22B4':'ltrie','\u22EC':'nltrie','\u22B4\u20D2':'nvltrie','\u22B5':'rtrie','\u22ED':'nrtrie','\u22B5\u20D2':'nvrtrie','\u22B6':'origof','\u22B7':'imof','\u22B8':'mumap','\u22B9':'hercon','\u22BA':'intcal','\u22BB':'veebar','\u22BD':'barvee','\u22BE':'angrtvb','\u22BF':'lrtri','\u22C0':'Wedge','\u22C1':'Vee','\u22C2':'xcap','\u22C3':'xcup','\u22C4':'diam','\u22C5':'sdot','\u22C6':'Star','\u22C7':'divonx','\u22C8':'bowtie','\u22C9':'ltimes','\u22CA':'rtimes','\u22CB':'lthree','\u22CC':'rthree','\u22CD':'bsime','\u22CE':'cuvee','\u22CF':'cuwed','\u22D0':'Sub','\u22D1':'Sup','\u22D2':'Cap','\u22D3':'Cup','\u22D4':'fork','\u22D5':'epar','\u22D6':'ltdot','\u22D7':'gtdot','\u22D8':'Ll','\u22D8\u0338':'nLl','\u22D9':'Gg','\u22D9\u0338':'nGg','\u22DA\uFE00':'lesg','\u22DA':'leg','\u22DB':'gel','\u22DB\uFE00':'gesl','\u22DE':'cuepr','\u22DF':'cuesc','\u22E6':'lnsim','\u22E7':'gnsim','\u22E8':'prnsim','\u22E9':'scnsim','\u22EE':'vellip','\u22EF':'ctdot','\u22F0':'utdot','\u22F1':'dtdot','\u22F2':'disin','\u22F3':'isinsv','\u22F4':'isins','\u22F5':'isindot','\u22F5\u0338':'notindot','\u22F6':'notinvc','\u22F7':'notinvb','\u22F9':'isinE','\u22F9\u0338':'notinE','\u22FA':'nisd','\u22FB':'xnis','\u22FC':'nis','\u22FD':'notnivc','\u22FE':'notnivb','\u2305':'barwed','\u2306':'Barwed','\u230C':'drcrop','\u230D':'dlcrop','\u230E':'urcrop','\u230F':'ulcrop','\u2310':'bnot','\u2312':'profline','\u2313':'profsurf','\u2315':'telrec','\u2316':'target','\u231C':'ulcorn','\u231D':'urcorn','\u231E':'dlcorn','\u231F':'drcorn','\u2322':'frown','\u2323':'smile','\u232D':'cylcty','\u232E':'profalar','\u2336':'topbot','\u233D':'ovbar','\u233F':'solbar','\u237C':'angzarr','\u23B0':'lmoust','\u23B1':'rmoust','\u23B4':'tbrk','\u23B5':'bbrk','\u23B6':'bbrktbrk','\u23DC':'OverParenthesis','\u23DD':'UnderParenthesis','\u23DE':'OverBrace','\u23DF':'UnderBrace','\u23E2':'trpezium','\u23E7':'elinters','\u2423':'blank','\u2500':'boxh','\u2502':'boxv','\u250C':'boxdr','\u2510':'boxdl','\u2514':'boxur','\u2518':'boxul','\u251C':'boxvr','\u2524':'boxvl','\u252C':'boxhd','\u2534':'boxhu','\u253C':'boxvh','\u2550':'boxH','\u2551':'boxV','\u2552':'boxdR','\u2553':'boxDr','\u2554':'boxDR','\u2555':'boxdL','\u2556':'boxDl','\u2557':'boxDL','\u2558':'boxuR','\u2559':'boxUr','\u255A':'boxUR','\u255B':'boxuL','\u255C':'boxUl','\u255D':'boxUL','\u255E':'boxvR','\u255F':'boxVr','\u2560':'boxVR','\u2561':'boxvL','\u2562':'boxVl','\u2563':'boxVL','\u2564':'boxHd','\u2565':'boxhD','\u2566':'boxHD','\u2567':'boxHu','\u2568':'boxhU','\u2569':'boxHU','\u256A':'boxvH','\u256B':'boxVh','\u256C':'boxVH','\u2580':'uhblk','\u2584':'lhblk','\u2588':'block','\u2591':'blk14','\u2592':'blk12','\u2593':'blk34','\u25A1':'squ','\u25AA':'squf','\u25AB':'EmptyVerySmallSquare','\u25AD':'rect','\u25AE':'marker','\u25B1':'fltns','\u25B3':'xutri','\u25B4':'utrif','\u25B5':'utri','\u25B8':'rtrif','\u25B9':'rtri','\u25BD':'xdtri','\u25BE':'dtrif','\u25BF':'dtri','\u25C2':'ltrif','\u25C3':'ltri','\u25CA':'loz','\u25CB':'cir','\u25EC':'tridot','\u25EF':'xcirc','\u25F8':'ultri','\u25F9':'urtri','\u25FA':'lltri','\u25FB':'EmptySmallSquare','\u25FC':'FilledSmallSquare','\u2605':'starf','\u2606':'star','\u260E':'phone','\u2640':'female','\u2642':'male','\u2660':'spades','\u2663':'clubs','\u2665':'hearts','\u2666':'diams','\u266A':'sung','\u2713':'check','\u2717':'cross','\u2720':'malt','\u2736':'sext','\u2758':'VerticalSeparator','\u27C8':'bsolhsub','\u27C9':'suphsol','\u27F5':'xlarr','\u27F6':'xrarr','\u27F7':'xharr','\u27F8':'xlArr','\u27F9':'xrArr','\u27FA':'xhArr','\u27FC':'xmap','\u27FF':'dzigrarr','\u2902':'nvlArr','\u2903':'nvrArr','\u2904':'nvHarr','\u2905':'Map','\u290C':'lbarr','\u290D':'rbarr','\u290E':'lBarr','\u290F':'rBarr','\u2910':'RBarr','\u2911':'DDotrahd','\u2912':'UpArrowBar','\u2913':'DownArrowBar','\u2916':'Rarrtl','\u2919':'latail','\u291A':'ratail','\u291B':'lAtail','\u291C':'rAtail','\u291D':'larrfs','\u291E':'rarrfs','\u291F':'larrbfs','\u2920':'rarrbfs','\u2923':'nwarhk','\u2924':'nearhk','\u2925':'searhk','\u2926':'swarhk','\u2927':'nwnear','\u2928':'toea','\u2929':'tosa','\u292A':'swnwar','\u2933':'rarrc','\u2933\u0338':'nrarrc','\u2935':'cudarrr','\u2936':'ldca','\u2937':'rdca','\u2938':'cudarrl','\u2939':'larrpl','\u293C':'curarrm','\u293D':'cularrp','\u2945':'rarrpl','\u2948':'harrcir','\u2949':'Uarrocir','\u294A':'lurdshar','\u294B':'ldrushar','\u294E':'LeftRightVector','\u294F':'RightUpDownVector','\u2950':'DownLeftRightVector','\u2951':'LeftUpDownVector','\u2952':'LeftVectorBar','\u2953':'RightVectorBar','\u2954':'RightUpVectorBar','\u2955':'RightDownVectorBar','\u2956':'DownLeftVectorBar','\u2957':'DownRightVectorBar','\u2958':'LeftUpVectorBar','\u2959':'LeftDownVectorBar','\u295A':'LeftTeeVector','\u295B':'RightTeeVector','\u295C':'RightUpTeeVector','\u295D':'RightDownTeeVector','\u295E':'DownLeftTeeVector','\u295F':'DownRightTeeVector','\u2960':'LeftUpTeeVector','\u2961':'LeftDownTeeVector','\u2962':'lHar','\u2963':'uHar','\u2964':'rHar','\u2965':'dHar','\u2966':'luruhar','\u2967':'ldrdhar','\u2968':'ruluhar','\u2969':'rdldhar','\u296A':'lharul','\u296B':'llhard','\u296C':'rharul','\u296D':'lrhard','\u296E':'udhar','\u296F':'duhar','\u2970':'RoundImplies','\u2971':'erarr','\u2972':'simrarr','\u2973':'larrsim','\u2974':'rarrsim','\u2975':'rarrap','\u2976':'ltlarr','\u2978':'gtrarr','\u2979':'subrarr','\u297B':'suplarr','\u297C':'lfisht','\u297D':'rfisht','\u297E':'ufisht','\u297F':'dfisht','\u299A':'vzigzag','\u299C':'vangrt','\u299D':'angrtvbd','\u29A4':'ange','\u29A5':'range','\u29A6':'dwangle','\u29A7':'uwangle','\u29A8':'angmsdaa','\u29A9':'angmsdab','\u29AA':'angmsdac','\u29AB':'angmsdad','\u29AC':'angmsdae','\u29AD':'angmsdaf','\u29AE':'angmsdag','\u29AF':'angmsdah','\u29B0':'bemptyv','\u29B1':'demptyv','\u29B2':'cemptyv','\u29B3':'raemptyv','\u29B4':'laemptyv','\u29B5':'ohbar','\u29B6':'omid','\u29B7':'opar','\u29B9':'operp','\u29BB':'olcross','\u29BC':'odsold','\u29BE':'olcir','\u29BF':'ofcir','\u29C0':'olt','\u29C1':'ogt','\u29C2':'cirscir','\u29C3':'cirE','\u29C4':'solb','\u29C5':'bsolb','\u29C9':'boxbox','\u29CD':'trisb','\u29CE':'rtriltri','\u29CF':'LeftTriangleBar','\u29CF\u0338':'NotLeftTriangleBar','\u29D0':'RightTriangleBar','\u29D0\u0338':'NotRightTriangleBar','\u29DC':'iinfin','\u29DD':'infintie','\u29DE':'nvinfin','\u29E3':'eparsl','\u29E4':'smeparsl','\u29E5':'eqvparsl','\u29EB':'lozf','\u29F4':'RuleDelayed','\u29F6':'dsol','\u2A00':'xodot','\u2A01':'xoplus','\u2A02':'xotime','\u2A04':'xuplus','\u2A06':'xsqcup','\u2A0D':'fpartint','\u2A10':'cirfnint','\u2A11':'awint','\u2A12':'rppolint','\u2A13':'scpolint','\u2A14':'npolint','\u2A15':'pointint','\u2A16':'quatint','\u2A17':'intlarhk','\u2A22':'pluscir','\u2A23':'plusacir','\u2A24':'simplus','\u2A25':'plusdu','\u2A26':'plussim','\u2A27':'plustwo','\u2A29':'mcomma','\u2A2A':'minusdu','\u2A2D':'loplus','\u2A2E':'roplus','\u2A2F':'Cross','\u2A30':'timesd','\u2A31':'timesbar','\u2A33':'smashp','\u2A34':'lotimes','\u2A35':'rotimes','\u2A36':'otimesas','\u2A37':'Otimes','\u2A38':'odiv','\u2A39':'triplus','\u2A3A':'triminus','\u2A3B':'tritime','\u2A3C':'iprod','\u2A3F':'amalg','\u2A40':'capdot','\u2A42':'ncup','\u2A43':'ncap','\u2A44':'capand','\u2A45':'cupor','\u2A46':'cupcap','\u2A47':'capcup','\u2A48':'cupbrcap','\u2A49':'capbrcup','\u2A4A':'cupcup','\u2A4B':'capcap','\u2A4C':'ccups','\u2A4D':'ccaps','\u2A50':'ccupssm','\u2A53':'And','\u2A54':'Or','\u2A55':'andand','\u2A56':'oror','\u2A57':'orslope','\u2A58':'andslope','\u2A5A':'andv','\u2A5B':'orv','\u2A5C':'andd','\u2A5D':'ord','\u2A5F':'wedbar','\u2A66':'sdote','\u2A6A':'simdot','\u2A6D':'congdot','\u2A6D\u0338':'ncongdot','\u2A6E':'easter','\u2A6F':'apacir','\u2A70':'apE','\u2A70\u0338':'napE','\u2A71':'eplus','\u2A72':'pluse','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
+
+  	var regexEscape = /["&'<>`]/g;
+  	var escapeMap = {
+  		'"': '&quot;',
+  		'&': '&amp;',
+  		'\'': '&#x27;',
+  		'<': '&lt;',
+  		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
+  		// following is not strictly necessary unless it’s part of a tag or an
+  		// unquoted attribute value. We’re only escaping it to support those
+  		// situations, and for XML support.
+  		'>': '&gt;',
+  		// In Internet Explorer ≤ 8, the backtick character can be used
+  		// to break out of (un)quoted attribute values or HTML comments.
+  		// See http://html5sec.org/#102, http://html5sec.org/#108, and
+  		// http://html5sec.org/#133.
+  		'`': '&#x60;'
+  	};
+
+  	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
+  	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
+  	var regexDecode = /&(CounterClockwiseContourIntegral|DoubleLongLeftRightArrow|ClockwiseContourIntegral|NotNestedGreaterGreater|NotSquareSupersetEqual|DiacriticalDoubleAcute|NotRightTriangleEqual|NotSucceedsSlantEqual|NotPrecedesSlantEqual|CloseCurlyDoubleQuote|NegativeVeryThinSpace|DoubleContourIntegral|FilledVerySmallSquare|CapitalDifferentialD|OpenCurlyDoubleQuote|EmptyVerySmallSquare|NestedGreaterGreater|DoubleLongRightArrow|NotLeftTriangleEqual|NotGreaterSlantEqual|ReverseUpEquilibrium|DoubleLeftRightArrow|NotSquareSubsetEqual|NotDoubleVerticalBar|RightArrowLeftArrow|NotGreaterFullEqual|NotRightTriangleBar|SquareSupersetEqual|DownLeftRightVector|DoubleLongLeftArrow|leftrightsquigarrow|LeftArrowRightArrow|NegativeMediumSpace|blacktriangleright|RightDownVectorBar|PrecedesSlantEqual|RightDoubleBracket|SucceedsSlantEqual|NotLeftTriangleBar|RightTriangleEqual|SquareIntersection|RightDownTeeVector|ReverseEquilibrium|NegativeThickSpace|longleftrightarrow|Longleftrightarrow|LongLeftRightArrow|DownRightTeeVector|DownRightVectorBar|GreaterSlantEqual|SquareSubsetEqual|LeftDownVectorBar|LeftDoubleBracket|VerticalSeparator|rightleftharpoons|NotGreaterGreater|NotSquareSuperset|blacktriangleleft|blacktriangledown|NegativeThinSpace|LeftDownTeeVector|NotLessSlantEqual|leftrightharpoons|DoubleUpDownArrow|DoubleVerticalBar|LeftTriangleEqual|FilledSmallSquare|twoheadrightarrow|NotNestedLessLess|DownLeftTeeVector|DownLeftVectorBar|RightAngleBracket|NotTildeFullEqual|NotReverseElement|RightUpDownVector|DiacriticalTilde|NotSucceedsTilde|circlearrowright|NotPrecedesEqual|rightharpoondown|DoubleRightArrow|NotSucceedsEqual|NonBreakingSpace|NotRightTriangle|LessEqualGreater|RightUpTeeVector|LeftAngleBracket|GreaterFullEqual|DownArrowUpArrow|RightUpVectorBar|twoheadleftarrow|GreaterEqualLess|downharpoonright|RightTriangleBar|ntrianglerighteq|NotSupersetEqual|LeftUpDownVector|DiacriticalAcute|rightrightarrows|vartriangleright|UpArrowDownArrow|DiacriticalGrave|UnderParenthesis|EmptySmallSquare|LeftUpVectorBar|leftrightarrows|DownRightVector|downharpoonleft|trianglerighteq|ShortRightArrow|OverParenthesis|DoubleLeftArrow|DoubleDownArrow|NotSquareSubset|bigtriangledown|ntrianglelefteq|UpperRightArrow|curvearrowright|vartriangleleft|NotLeftTriangle|nleftrightarrow|LowerRightArrow|NotHumpDownHump|NotGreaterTilde|rightthreetimes|LeftUpTeeVector|NotGreaterEqual|straightepsilon|LeftTriangleBar|rightsquigarrow|ContourIntegral|rightleftarrows|CloseCurlyQuote|RightDownVector|LeftRightVector|nLeftrightarrow|leftharpoondown|circlearrowleft|SquareSuperset|OpenCurlyQuote|hookrightarrow|HorizontalLine|DiacriticalDot|NotLessGreater|ntriangleright|DoubleRightTee|InvisibleComma|InvisibleTimes|LowerLeftArrow|DownLeftVector|NotSubsetEqual|curvearrowleft|trianglelefteq|NotVerticalBar|TildeFullEqual|downdownarrows|NotGreaterLess|RightTeeVector|ZeroWidthSpace|looparrowright|LongRightArrow|doublebarwedge|ShortLeftArrow|ShortDownArrow|RightVectorBar|GreaterGreater|ReverseElement|rightharpoonup|LessSlantEqual|leftthreetimes|upharpoonright|rightarrowtail|LeftDownVector|Longrightarrow|NestedLessLess|UpperLeftArrow|nshortparallel|leftleftarrows|leftrightarrow|Leftrightarrow|LeftRightArrow|longrightarrow|upharpoonleft|RightArrowBar|ApplyFunction|LeftTeeVector|leftarrowtail|NotEqualTilde|varsubsetneqq|varsupsetneqq|RightTeeArrow|SucceedsEqual|SucceedsTilde|LeftVectorBar|SupersetEqual|hookleftarrow|DifferentialD|VerticalTilde|VeryThinSpace|blacktriangle|bigtriangleup|LessFullEqual|divideontimes|leftharpoonup|UpEquilibrium|ntriangleleft|RightTriangle|measuredangle|shortparallel|longleftarrow|Longleftarrow|LongLeftArrow|DoubleLeftTee|Poincareplane|PrecedesEqual|triangleright|DoubleUpArrow|RightUpVector|fallingdotseq|looparrowleft|PrecedesTilde|NotTildeEqual|NotTildeTilde|smallsetminus|Proportional|triangleleft|triangledown|UnderBracket|NotHumpEqual|exponentiale|ExponentialE|NotLessTilde|HilbertSpace|RightCeiling|blacklozenge|varsupsetneq|HumpDownHump|GreaterEqual|VerticalLine|LeftTeeArrow|NotLessEqual|DownTeeArrow|LeftTriangle|varsubsetneq|Intersection|NotCongruent|DownArrowBar|LeftUpVector|LeftArrowBar|risingdotseq|GreaterTilde|RoundImplies|SquareSubset|ShortUpArrow|NotSuperset|quaternions|precnapprox|backepsilon|preccurlyeq|OverBracket|blacksquare|MediumSpace|VerticalBar|circledcirc|circleddash|CircleMinus|CircleTimes|LessGreater|curlyeqprec|curlyeqsucc|diamondsuit|UpDownArrow|Updownarrow|RuleDelayed|Rrightarrow|updownarrow|RightVector|nRightarrow|nrightarrow|eqslantless|LeftCeiling|Equilibrium|SmallCircle|expectation|NotSucceeds|thickapprox|GreaterLess|SquareUnion|NotPrecedes|NotLessLess|straightphi|succnapprox|succcurlyeq|SubsetEqual|sqsupseteq|Proportion|Laplacetrf|ImaginaryI|supsetneqq|NotGreater|gtreqqless|NotElement|ThickSpace|TildeEqual|TildeTilde|Fouriertrf|rmoustache|EqualTilde|eqslantgtr|UnderBrace|LeftVector|UpArrowBar|nLeftarrow|nsubseteqq|subsetneqq|nsupseteqq|nleftarrow|succapprox|lessapprox|UpTeeArrow|upuparrows|curlywedge|lesseqqgtr|varepsilon|varnothing|RightFloor|c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|Fscr|gdot|gsim|Gscr|gscr|Gopf|gopf|gneq|Gdot|tosa|gnap|Topf|topf|geqq|toea|GJcy|gjcy|tint|gesl|mid|Sfr|ggg|top|ges|gla|glE|glj|geq|gne|gEl|gel|gnE|Gcy|gcy|gap|Tfr|tfr|Tcy|tcy|Hat|Tau|Ffr|tau|Tab|hfr|Hfr|ffr|Fcy|fcy|icy|Icy|iff|ETH|eth|ifr|Ifr|Eta|eta|int|Int|Sup|sup|ucy|Ucy|Sum|sum|jcy|ENG|ufr|Ufr|eng|Jcy|jfr|els|ell|egs|Efr|efr|Jfr|uml|kcy|Kcy|Ecy|ecy|kfr|Kfr|lap|Sub|sub|lat|lcy|Lcy|leg|Dot|dot|lEg|leq|les|squ|div|die|lfr|Lfr|lgE|Dfr|dfr|Del|deg|Dcy|dcy|lne|lnE|sol|loz|smt|Cup|lrm|cup|lsh|Lsh|sim|shy|map|Map|mcy|Mcy|mfr|Mfr|mho|gfr|Gfr|sfr|cir|Chi|chi|nap|Cfr|vcy|Vcy|cfr|Scy|scy|ncy|Ncy|vee|Vee|Cap|cap|nfr|scE|sce|Nfr|nge|ngE|nGg|vfr|Vfr|ngt|bot|nGt|nis|niv|Rsh|rsh|nle|nlE|bne|Bfr|bfr|nLl|nlt|nLt|Bcy|bcy|not|Not|rlm|wfr|Wfr|npr|nsc|num|ocy|ast|Ocy|ofr|xfr|Xfr|Ofr|ogt|ohm|apE|olt|Rho|ape|rho|Rfr|rfr|ord|REG|ang|reg|orv|And|and|AMP|Rcy|amp|Afr|ycy|Ycy|yen|yfr|Yfr|rcy|par|pcy|Pcy|pfr|Pfr|phi|Phi|afr|Acy|acy|zcy|Zcy|piv|acE|acd|zfr|Zfr|pre|prE|psi|Psi|qfr|Qfr|zwj|Or|ge|Gg|gt|gg|el|oS|lt|Lt|LT|Re|lg|gl|eg|ne|Im|it|le|DD|wp|wr|nu|Nu|dd|lE|Sc|sc|pi|Pi|ee|af|ll|Ll|rx|gE|xi|pm|Xi|ic|pr|Pr|in|ni|mp|mu|ac|Mu|or|ap|Gt|GT|ii);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)(?!;)([=a-zA-Z0-9]?)|&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+)/g;
+  	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
+  	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
+  	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
+  	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
+
+  	/*--------------------------------------------------------------------------*/
+
+  	var stringFromCharCode = String.fromCharCode;
+
+  	var object = {};
+  	var hasOwnProperty = object.hasOwnProperty;
+  	var has = function(object, propertyName) {
+  		return hasOwnProperty.call(object, propertyName);
+  	};
+
+  	var contains = function(array, value) {
+  		var index = -1;
+  		var length = array.length;
+  		while (++index < length) {
+  			if (array[index] == value) {
+  				return true;
+  			}
+  		}
+  		return false;
+  	};
+
+  	var merge = function(options, defaults) {
+  		if (!options) {
+  			return defaults;
+  		}
+  		var result = {};
+  		var key;
+  		for (key in defaults) {
+  			// A `hasOwnProperty` check is not needed here, since only recognized
+  			// option names are used anyway. Any others are ignored.
+  			result[key] = has(options, key) ? options[key] : defaults[key];
+  		}
+  		return result;
+  	};
+
+  	// Modified version of `ucs2encode`; see https://mths.be/punycode.
+  	var codePointToSymbol = function(codePoint, strict) {
+  		var output = '';
+  		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
+  			// See issue #4:
+  			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
+  			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
+  			// REPLACEMENT CHARACTER.”
+  			if (strict) {
+  				parseError('character reference outside the permissible Unicode range');
+  			}
+  			return '\uFFFD';
+  		}
+  		if (has(decodeMapNumeric, codePoint)) {
+  			if (strict) {
+  				parseError('disallowed character reference');
+  			}
+  			return decodeMapNumeric[codePoint];
+  		}
+  		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
+  			parseError('disallowed character reference');
+  		}
+  		if (codePoint > 0xFFFF) {
+  			codePoint -= 0x10000;
+  			output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
+  			codePoint = 0xDC00 | codePoint & 0x3FF;
+  		}
+  		output += stringFromCharCode(codePoint);
+  		return output;
+  	};
+
+  	var hexEscape = function(codePoint) {
+  		return '&#x' + codePoint.toString(16).toUpperCase() + ';';
+  	};
+
+  	var decEscape = function(codePoint) {
+  		return '&#' + codePoint + ';';
+  	};
+
+  	var parseError = function(message) {
+  		throw Error('Parse error: ' + message);
+  	};
+
+  	/*--------------------------------------------------------------------------*/
+
+  	var encode = function(string, options) {
+  		options = merge(options, encode.options);
+  		var strict = options.strict;
+  		if (strict && regexInvalidRawCodePoint.test(string)) {
+  			parseError('forbidden code point');
+  		}
+  		var encodeEverything = options.encodeEverything;
+  		var useNamedReferences = options.useNamedReferences;
+  		var allowUnsafeSymbols = options.allowUnsafeSymbols;
+  		var escapeCodePoint = options.decimal ? decEscape : hexEscape;
+
+  		var escapeBmpSymbol = function(symbol) {
+  			return escapeCodePoint(symbol.charCodeAt(0));
+  		};
+
+  		if (encodeEverything) {
+  			// Encode ASCII symbols.
+  			string = string.replace(regexAsciiWhitelist, function(symbol) {
+  				// Use named references if requested & possible.
+  				if (useNamedReferences && has(encodeMap, symbol)) {
+  					return '&' + encodeMap[symbol] + ';';
+  				}
+  				return escapeBmpSymbol(symbol);
+  			});
+  			// Shorten a few escapes that represent two symbols, of which at least one
+  			// is within the ASCII range.
+  			if (useNamedReferences) {
+  				string = string
+  					.replace(/&gt;\u20D2/g, '&nvgt;')
+  					.replace(/&lt;\u20D2/g, '&nvlt;')
+  					.replace(/&#x66;&#x6A;/g, '&fjlig;');
+  			}
+  			// Encode non-ASCII symbols.
+  			if (useNamedReferences) {
+  				// Encode non-ASCII symbols that can be replaced with a named reference.
+  				string = string.replace(regexEncodeNonAscii, function(string) {
+  					// Note: there is no need to check `has(encodeMap, string)` here.
+  					return '&' + encodeMap[string] + ';';
+  				});
+  			}
+  			// Note: any remaining non-ASCII symbols are handled outside of the `if`.
+  		} else if (useNamedReferences) {
+  			// Apply named character references.
+  			// Encode `<>"'&` using named character references.
+  			if (!allowUnsafeSymbols) {
+  				string = string.replace(regexEscape, function(string) {
+  					return '&' + encodeMap[string] + ';'; // no need to check `has()` here
+  				});
+  			}
+  			// Shorten escapes that represent two symbols, of which at least one is
+  			// `<>"'&`.
+  			string = string
+  				.replace(/&gt;\u20D2/g, '&nvgt;')
+  				.replace(/&lt;\u20D2/g, '&nvlt;');
+  			// Encode non-ASCII symbols that can be replaced with a named reference.
+  			string = string.replace(regexEncodeNonAscii, function(string) {
+  				// Note: there is no need to check `has(encodeMap, string)` here.
+  				return '&' + encodeMap[string] + ';';
+  			});
+  		} else if (!allowUnsafeSymbols) {
+  			// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
+  			// using named character references.
+  			string = string.replace(regexEscape, escapeBmpSymbol);
+  		}
+  		return string
+  			// Encode astral symbols.
+  			.replace(regexAstralSymbols, function($0) {
+  				// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+  				var high = $0.charCodeAt(0);
+  				var low = $0.charCodeAt(1);
+  				var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
+  				return escapeCodePoint(codePoint);
+  			})
+  			// Encode any remaining BMP symbols that are not printable ASCII symbols
+  			// using a hexadecimal escape.
+  			.replace(regexBmpWhitelist, escapeBmpSymbol);
+  	};
+  	// Expose default options (so they can be overridden globally).
+  	encode.options = {
+  		'allowUnsafeSymbols': false,
+  		'encodeEverything': false,
+  		'strict': false,
+  		'useNamedReferences': false,
+  		'decimal' : false
+  	};
+
+  	var decode = function(html, options) {
+  		options = merge(options, decode.options);
+  		var strict = options.strict;
+  		if (strict && regexInvalidEntity.test(html)) {
+  			parseError('malformed character reference');
+  		}
+  		return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7, $8) {
+  			var codePoint;
+  			var semicolon;
+  			var decDigits;
+  			var hexDigits;
+  			var reference;
+  			var next;
+
+  			if ($1) {
+  				reference = $1;
+  				// Note: there is no need to check `has(decodeMap, reference)`.
+  				return decodeMap[reference];
+  			}
+
+  			if ($2) {
+  				// Decode named character references without trailing `;`, e.g. `&amp`.
+  				// This is only a parse error if it gets converted to `&`, or if it is
+  				// followed by `=` in an attribute context.
+  				reference = $2;
+  				next = $3;
+  				if (next && options.isAttributeValue) {
+  					if (strict && next == '=') {
+  						parseError('`&` did not start a character reference');
+  					}
+  					return $0;
+  				} else {
+  					if (strict) {
+  						parseError(
+  							'named character reference was not terminated by a semicolon'
+  						);
+  					}
+  					// Note: there is no need to check `has(decodeMapLegacy, reference)`.
+  					return decodeMapLegacy[reference] + (next || '');
+  				}
+  			}
+
+  			if ($4) {
+  				// Decode decimal escapes, e.g. `&#119558;`.
+  				decDigits = $4;
+  				semicolon = $5;
+  				if (strict && !semicolon) {
+  					parseError('character reference was not terminated by a semicolon');
+  				}
+  				codePoint = parseInt(decDigits, 10);
+  				return codePointToSymbol(codePoint, strict);
+  			}
+
+  			if ($6) {
+  				// Decode hexadecimal escapes, e.g. `&#x1D306;`.
+  				hexDigits = $6;
+  				semicolon = $7;
+  				if (strict && !semicolon) {
+  					parseError('character reference was not terminated by a semicolon');
+  				}
+  				codePoint = parseInt(hexDigits, 16);
+  				return codePointToSymbol(codePoint, strict);
+  			}
+
+  			// If we’re still here, `if ($7)` is implied; it’s an ambiguous
+  			// ampersand for sure. https://mths.be/notes/ambiguous-ampersands
+  			if (strict) {
+  				parseError(
+  					'named character reference was not terminated by a semicolon'
+  				);
+  			}
+  			return $0;
+  		});
+  	};
+  	// Expose default options (so they can be overridden globally).
+  	decode.options = {
+  		'isAttributeValue': false,
+  		'strict': false
+  	};
+
+  	var escape = function(string) {
+  		return string.replace(regexEscape, function($0) {
+  			// Note: there is no need to check `has(escapeMap, $0)` here.
+  			return escapeMap[$0];
+  		});
+  	};
+
+  	/*--------------------------------------------------------------------------*/
+
+  	var he = {
+  		'version': '1.2.0',
+  		'encode': encode,
+  		'decode': decode,
+  		'escape': escape,
+  		'unescape': decode
+  	};
+
+  	// Some AMD build optimizers, like r.js, check for specific condition patterns
+  	// like the following:
+  	if (freeExports && !freeExports.nodeType) {
+  		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
+  			freeModule.exports = he;
+  		} else { // in Narwhal or RingoJS v0.7.0-
+  			for (var key in he) {
+  				has(he, key) && (freeExports[key] = he[key]);
+  			}
+  		}
+  	} else { // in Rhino or a web browser
+  		root.he = he;
+  	}
+
+  }(commonjsGlobal));
+  });
+
+  /*  */
+
+  /**
+   * Cross-platform code generation for component v-model
+   */
+  function genComponentModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var ref = modifiers || {};
+    var number = ref.number;
+    var trim = ref.trim;
+
+    var baseValueExpression = '$$v';
+    var valueExpression = baseValueExpression;
+    if (trim) {
+      valueExpression =
+        "(typeof " + baseValueExpression + " === 'string'" +
+        "? " + baseValueExpression + ".trim()" +
+        ": " + baseValueExpression + ")";
+    }
+    if (number) {
+      valueExpression = "_n(" + valueExpression + ")";
+    }
+    var assignment = genAssignmentCode(value, valueExpression);
+
+    el.model = {
+      value: ("(" + value + ")"),
+      expression: ("\"" + value + "\""),
+      callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+    };
+  }
+
+  /**
+   * Cross-platform codegen helper for generating v-model value assignment code.
+   */
+  function genAssignmentCode (
+    value,
+    assignment
+  ) {
+    var res = parseModel(value);
+    if (res.key === null) {
+      return (value + "=" + assignment)
+    } else {
+      return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+    }
+  }
+
+  /**
+   * Parse a v-model expression into a base path and a final key segment.
+   * Handles both dot-path and possible square brackets.
+   *
+   * Possible cases:
+   *
+   * - test
+   * - test[key]
+   * - test[test1[key]]
+   * - test["a"][key]
+   * - xxx.test[a[a].test1[key]]
+   * - test.xxx.a["asa"][test1[key]]
+   *
+   */
+
+  var len, str, chr, index, expressionPos, expressionEndPos;
+
+
+
+  function parseModel (val) {
+    // Fix https://github.com/vuejs/vue/pull/7730
+    // allow v-model="obj.val " (trailing whitespace)
+    val = val.trim();
+    len = val.length;
+
+    if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+      index = val.lastIndexOf('.');
+      if (index > -1) {
+        return {
+          exp: val.slice(0, index),
+          key: '"' + val.slice(index + 1) + '"'
+        }
+      } else {
+        return {
+          exp: val,
+          key: null
+        }
+      }
+    }
+
+    str = val;
+    index = expressionPos = expressionEndPos = 0;
+
+    while (!eof()) {
+      chr = next();
+      /* istanbul ignore if */
+      if (isStringStart(chr)) {
+        parseString(chr);
+      } else if (chr === 0x5B) {
+        parseBracket(chr);
+      }
+    }
+
+    return {
+      exp: val.slice(0, expressionPos),
+      key: val.slice(expressionPos + 1, expressionEndPos)
+    }
+  }
+
+  function next () {
+    return str.charCodeAt(++index)
+  }
+
+  function eof () {
+    return index >= len
+  }
+
+  function isStringStart (chr) {
+    return chr === 0x22 || chr === 0x27
+  }
+
+  function parseBracket (chr) {
+    var inBracket = 1;
+    expressionPos = index;
+    while (!eof()) {
+      chr = next();
+      if (isStringStart(chr)) {
+        parseString(chr);
+        continue
+      }
+      if (chr === 0x5B) { inBracket++; }
+      if (chr === 0x5D) { inBracket--; }
+      if (inBracket === 0) {
+        expressionEndPos = index;
+        break
+      }
+    }
+  }
+
+  function parseString (chr) {
+    var stringQuote = chr;
+    while (!eof()) {
+      chr = next();
+      if (chr === stringQuote) {
+        break
+      }
+    }
+  }
+
+  /*  */
+
+  var onRE = /^@|^v-on:/;
+  var dirRE = /^v-|^@|^:/;
+  var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
+  var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+  var stripParensRE = /^\(|\)$/g;
+
+  var argRE = /:(.*)$/;
+  var bindRE = /^:|^v-bind:/;
+  var modifierRE = /\.[^.]+/g;
+
+  var decodeHTMLCached = cached(he.decode);
+
+  // configurable state
+  var warn$1;
+  var delimiters;
+  var transforms;
+  var preTransforms;
+  var postTransforms;
+  var platformIsPreTag;
+  var platformMustUseProp;
+  var platformGetTagNamespace;
+
+
+
+  function createASTElement (
+    tag,
+    attrs,
+    parent
+  ) {
+    return {
+      type: 1,
+      tag: tag,
+      attrsList: attrs,
+      attrsMap: makeAttrsMap(attrs),
+      parent: parent,
+      children: []
+    }
+  }
+
+  /**
+   * Convert HTML string to AST.
+   */
+  function parse (
+    template,
+    options
+  ) {
+    warn$1 = options.warn || baseWarn;
+
+    platformIsPreTag = options.isPreTag || no;
+    platformMustUseProp = options.mustUseProp || no;
+    platformGetTagNamespace = options.getTagNamespace || no;
+
+    transforms = pluckModuleFunction(options.modules, 'transformNode');
+    preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+    postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+    delimiters = options.delimiters;
+
+    var stack = [];
+    var preserveWhitespace = options.preserveWhitespace !== false;
+    var root;
+    var currentParent;
+    var inVPre = false;
+    var inPre = false;
+    var warned = false;
+
+    function warnOnce (msg) {
+      if (!warned) {
+        warned = true;
+        warn$1(msg);
+      }
+    }
+
+    function closeElement (element) {
+      // check pre state
+      if (element.pre) {
+        inVPre = false;
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = false;
+      }
+      // apply post-transforms
+      for (var i = 0; i < postTransforms.length; i++) {
+        postTransforms[i](element, options);
+      }
+    }
+
+    parseHTML(template, {
+      warn: warn$1,
+      expectHTML: options.expectHTML,
+      isUnaryTag: options.isUnaryTag,
+      canBeLeftOpenTag: options.canBeLeftOpenTag,
+      shouldDecodeNewlines: options.shouldDecodeNewlines,
+      shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+      shouldKeepComment: options.comments,
+      start: function start (tag, attrs, unary) {
+        // check namespace.
+        // inherit parent ns if there is one
+        var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+        // handle IE svg bug
+        /* istanbul ignore if */
+        if (isIE && ns === 'svg') {
+          attrs = guardIESVGBug(attrs);
+        }
+
+        var element = createASTElement(tag, attrs, currentParent);
+        if (ns) {
+          element.ns = ns;
+        }
+
+        if (isForbiddenTag(element) && !isServerRendering()) {
+          element.forbidden = true;
+          warn$1(
+            'Templates should only be responsible for mapping the state to the ' +
+            'UI. Avoid placing tags with side-effects in your templates, such as ' +
+            "<" + tag + ">" + ', as they will not be parsed.'
+          );
+        }
+
+        // apply pre-transforms
+        for (var i = 0; i < preTransforms.length; i++) {
+          element = preTransforms[i](element, options) || element;
+        }
+
+        if (!inVPre) {
+          processPre(element);
+          if (element.pre) {
+            inVPre = true;
+          }
+        }
+        if (platformIsPreTag(element.tag)) {
+          inPre = true;
+        }
+        if (inVPre) {
+          processRawAttrs(element);
+        } else if (!element.processed) {
+          // structural directives
+          processFor(element);
+          processIf(element);
+          processOnce(element);
+          // element-scope stuff
+          processElement(element, options);
+        }
+
+        function checkRootConstraints (el) {
+          {
+            if (el.tag === 'slot' || el.tag === 'template') {
+              warnOnce(
+                "Cannot use <" + (el.tag) + "> as component root element because it may " +
+                'contain multiple nodes.'
+              );
+            }
+            if (el.attrsMap.hasOwnProperty('v-for')) {
+              warnOnce(
+                'Cannot use v-for on stateful component root element because ' +
+                'it renders multiple elements.'
+              );
+            }
+          }
+        }
+
+        // tree management
+        if (!root) {
+          root = element;
+          checkRootConstraints(root);
+        } else if (!stack.length) {
+          // allow root elements with v-if, v-else-if and v-else
+          if (root.if && (element.elseif || element.else)) {
+            checkRootConstraints(element);
+            addIfCondition(root, {
+              exp: element.elseif,
+              block: element
+            });
+          } else {
+            warnOnce(
+              "Component template should contain exactly one root element. " +
+              "If you are using v-if on multiple elements, " +
+              "use v-else-if to chain them instead."
+            );
+          }
+        }
+        if (currentParent && !element.forbidden) {
+          if (element.elseif || element.else) {
+            processIfConditions(element, currentParent);
+          } else if (element.slotScope) { // scoped slot
+            currentParent.plain = false;
+            var name = element.slotTarget || '"default"'
+            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          } else {
+            currentParent.children.push(element);
+            element.parent = currentParent;
+          }
+        }
+        if (!unary) {
+          currentParent = element;
+          stack.push(element);
+        } else {
+          closeElement(element);
+        }
+      },
+
+      end: function end () {
+        // remove trailing whitespace
+        var element = stack[stack.length - 1];
+        var lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+          element.children.pop();
+        }
+        // pop stack
+        stack.length -= 1;
+        currentParent = stack[stack.length - 1];
+        closeElement(element);
+      },
+
+      chars: function chars (text) {
+        if (!currentParent) {
+          {
+            if (text === template) {
+              warnOnce(
+                'Component template requires a root element, rather than just text.'
+              );
+            } else if ((text = text.trim())) {
+              warnOnce(
+                ("text \"" + text + "\" outside root element will be ignored.")
+              );
+            }
+          }
+          return
+        }
+        // IE textarea placeholder bug
+        /* istanbul ignore if */
+        if (isIE &&
+          currentParent.tag === 'textarea' &&
+          currentParent.attrsMap.placeholder === text
+        ) {
+          return
+        }
+        var children = currentParent.children;
+        text = inPre || text.trim()
+          ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+          // only preserve whitespace if its not right after a starting tag
+          : preserveWhitespace && children.length ? ' ' : '';
+        if (text) {
+          var res;
+          if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+            children.push({
+              type: 2,
+              expression: res.expression,
+              tokens: res.tokens,
+              text: text
+            });
+          } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+            children.push({
+              type: 3,
+              text: text
+            });
+          }
+        }
+      },
+      comment: function comment (text) {
+        currentParent.children.push({
+          type: 3,
+          text: text,
+          isComment: true
+        });
+      }
+    });
+    return root
+  }
+
+  function processPre (el) {
+    if (getAndRemoveAttr(el, 'v-pre') != null) {
+      el.pre = true;
+    }
+  }
+
+  function processRawAttrs (el) {
+    var l = el.attrsList.length;
+    if (l) {
+      var attrs = el.attrs = new Array(l);
+      for (var i = 0; i < l; i++) {
+        attrs[i] = {
+          name: el.attrsList[i].name,
+          value: JSON.stringify(el.attrsList[i].value)
+        };
+      }
+    } else if (!el.pre) {
+      // non root node in pre blocks with no attributes
+      el.plain = true;
+    }
+  }
+
+  function processElement (element, options) {
+    processKey(element);
+
+    // determine whether this is a plain element after
+    // removing structural attributes
+    element.plain = !element.key && !element.attrsList.length;
+
+    processRef(element);
+    processSlot(element);
+    processComponent(element);
+    for (var i = 0; i < transforms.length; i++) {
+      element = transforms[i](element, options) || element;
+    }
+    processAttrs(element);
+  }
+
+  function processKey (el) {
+    var exp = getBindingAttr(el, 'key');
+    if (exp) {
+      {
+        if (el.tag === 'template') {
+          warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+        }
+        if (el.for) {
+          var iterator = el.iterator2 || el.iterator1;
+          var parent = el.parent;
+          if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+            warn$1(
+              "Do not use v-for index as key on <transtion-group> children, " +
+              "this is the same as not using keys."
+            );
+          }
+        }
+      }
+      el.key = exp;
+    }
+  }
+
+  function processRef (el) {
+    var ref = getBindingAttr(el, 'ref');
+    if (ref) {
+      el.ref = ref;
+      el.refInFor = checkInFor(el);
+    }
+  }
+
+  function processFor (el) {
+    var exp;
+    if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+      var res = parseFor(exp);
+      if (res) {
+        extend(el, res);
+      } else {
+        warn$1(
+          ("Invalid v-for expression: " + exp)
+        );
+      }
+    }
+  }
+
+
+
+  function parseFor (exp) {
+    var inMatch = exp.match(forAliasRE);
+    if (!inMatch) { return }
+    var res = {};
+    res.for = inMatch[2].trim();
+    var alias = inMatch[1].trim().replace(stripParensRE, '');
+    var iteratorMatch = alias.match(forIteratorRE);
+    if (iteratorMatch) {
+      res.alias = alias.replace(forIteratorRE, '').trim();
+      res.iterator1 = iteratorMatch[1].trim();
+      if (iteratorMatch[2]) {
+        res.iterator2 = iteratorMatch[2].trim();
+      }
+    } else {
+      res.alias = alias;
+    }
+    return res
+  }
+
+  function processIf (el) {
+    var exp = getAndRemoveAttr(el, 'v-if');
+    if (exp) {
+      el.if = exp;
+      addIfCondition(el, {
+        exp: exp,
+        block: el
+      });
+    } else {
+      if (getAndRemoveAttr(el, 'v-else') != null) {
+        el.else = true;
+      }
+      var elseif = getAndRemoveAttr(el, 'v-else-if');
+      if (elseif) {
+        el.elseif = elseif;
+      }
+    }
+  }
+
+  function processIfConditions (el, parent) {
+    var prev = findPrevElement(parent.children);
+    if (prev && prev.if) {
+      addIfCondition(prev, {
+        exp: el.elseif,
+        block: el
+      });
+    } else {
+      warn$1(
+        "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+        "used on element <" + (el.tag) + "> without corresponding v-if."
+      );
+    }
+  }
+
+  function findPrevElement (children) {
+    var i = children.length;
+    while (i--) {
+      if (children[i].type === 1) {
+        return children[i]
+      } else {
+        if (children[i].text !== ' ') {
+          warn$1(
+            "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+            "will be ignored."
+          );
+        }
+        children.pop();
+      }
+    }
+  }
+
+  function addIfCondition (el, condition) {
+    if (!el.ifConditions) {
+      el.ifConditions = [];
+    }
+    el.ifConditions.push(condition);
+  }
+
+  function processOnce (el) {
+    var once$$1 = getAndRemoveAttr(el, 'v-once');
+    if (once$$1 != null) {
+      el.once = true;
+    }
+  }
+
+  function processSlot (el) {
+    if (el.tag === 'slot') {
+      el.slotName = getBindingAttr(el, 'name');
+      if (el.key) {
+        warn$1(
+          "`key` does not work on <slot> because slots are abstract outlets " +
+          "and can possibly expand into multiple elements. " +
+          "Use the key on a wrapping element instead."
+        );
+      }
+    } else {
+      var slotScope;
+      if (el.tag === 'template') {
+        slotScope = getAndRemoveAttr(el, 'scope');
+        /* istanbul ignore if */
+        if (slotScope) {
+          warn$1(
+            "the \"scope\" attribute for scoped slots have been deprecated and " +
+            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+            "can also be used on plain elements in addition to <template> to " +
+            "denote scoped slots.",
+            true
+          );
+        }
+        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+        /* istanbul ignore if */
+        if (el.attrsMap['v-for']) {
+          warn$1(
+            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+            "(v-for takes higher priority). Use a wrapper <template> for the " +
+            "scoped slot to make it clearer.",
+            true
+          );
+        }
+        el.slotScope = slotScope;
+      }
+      var slotTarget = getBindingAttr(el, 'slot');
+      if (slotTarget) {
+        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+        // preserve slot as an attribute for native shadow DOM compat
+        // only for non-scoped slots.
+        if (el.tag !== 'template' && !el.slotScope) {
+          addAttr(el, 'slot', slotTarget);
+        }
+      }
+    }
+  }
+
+  function processComponent (el) {
+    var binding;
+    if ((binding = getBindingAttr(el, 'is'))) {
+      el.component = binding;
+    }
+    if (getAndRemoveAttr(el, 'inline-template') != null) {
+      el.inlineTemplate = true;
+    }
+  }
+
+  function processAttrs (el) {
     var list = el.attrsList;
-    for (var i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break
+    var i, l, name, rawName, value, modifiers, isProp;
+    for (i = 0, l = list.length; i < l; i++) {
+      name = rawName = list[i].name;
+      value = list[i].value;
+      if (dirRE.test(name)) {
+        // mark element as dynamic
+        el.hasBindings = true;
+        // modifiers
+        modifiers = parseModifiers(name);
+        if (modifiers) {
+          name = name.replace(modifierRE, '');
+        }
+        if (bindRE.test(name)) { // v-bind
+          name = name.replace(bindRE, '');
+          value = parseFilters(value);
+          isProp = false;
+          if (
+            value.trim().length === 0
+          ) {
+            warn$1(
+              ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+            );
+          }
+          if (modifiers) {
+            if (modifiers.prop) {
+              isProp = true;
+              name = camelize(name);
+              if (name === 'innerHtml') { name = 'innerHTML'; }
+            }
+            if (modifiers.camel) {
+              name = camelize(name);
+            }
+            if (modifiers.sync) {
+              addHandler(
+                el,
+                ("update:" + (camelize(name))),
+                genAssignmentCode(value, "$event")
+              );
+            }
+          }
+          if (isProp || (
+            !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+          )) {
+            addProp(el, name, value);
+          } else {
+            addAttr(el, name, value);
+          }
+        } else if (onRE.test(name)) { // v-on
+          name = name.replace(onRE, '');
+          addHandler(el, name, value, modifiers, false, warn$1);
+        } else { // normal directives
+          name = name.replace(dirRE, '');
+          // parse arg
+          var argMatch = name.match(argRE);
+          var arg = argMatch && argMatch[1];
+          if (arg) {
+            name = name.slice(0, -(arg.length + 1));
+          }
+          addDirective(el, name, rawName, value, arg, modifiers);
+          if (name === 'model') {
+            checkForAliasModel(el, value);
+          }
+        }
+      } else {
+        // literal attribute
+        {
+          var res = parseText(value, delimiters);
+          if (res) {
+            warn$1(
+              name + "=\"" + value + "\": " +
+              'Interpolation inside attributes has been removed. ' +
+              'Use v-bind or the colon shorthand instead. For example, ' +
+              'instead of <div id="{{ val }}">, use <div :id="val">.'
+            );
+          }
+        }
+        addAttr(el, name, JSON.stringify(value));
+        // #6887 firefox doesn't update muted state if set via attribute
+        // even immediately after element creation
+        if (!el.component &&
+            name === 'muted' &&
+            platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+          addProp(el, name, 'true');
+        }
+      }
+    }
+  }
+
+  function checkInFor (el) {
+    var parent = el;
+    while (parent) {
+      if (parent.for !== undefined) {
+        return true
+      }
+      parent = parent.parent;
+    }
+    return false
+  }
+
+  function parseModifiers (name) {
+    var match = name.match(modifierRE);
+    if (match) {
+      var ret = {};
+      match.forEach(function (m) { ret[m.slice(1)] = true; });
+      return ret
+    }
+  }
+
+  function makeAttrsMap (attrs) {
+    var map = {};
+    for (var i = 0, l = attrs.length; i < l; i++) {
+      if (
+        map[attrs[i].name] && !isIE && !isEdge
+      ) {
+        warn$1('duplicate attribute: ' + attrs[i].name);
+      }
+      map[attrs[i].name] = attrs[i].value;
+    }
+    return map
+  }
+
+  // for script (e.g. type="x/template") or style, do not decode content
+  function isTextTag (el) {
+    return el.tag === 'script' || el.tag === 'style'
+  }
+
+  function isForbiddenTag (el) {
+    return (
+      el.tag === 'style' ||
+      (el.tag === 'script' && (
+        !el.attrsMap.type ||
+        el.attrsMap.type === 'text/javascript'
+      ))
+    )
+  }
+
+  var ieNSBug = /^xmlns:NS\d+/;
+  var ieNSPrefix = /^NS\d+:/;
+
+  /* istanbul ignore next */
+  function guardIESVGBug (attrs) {
+    var res = [];
+    for (var i = 0; i < attrs.length; i++) {
+      var attr = attrs[i];
+      if (!ieNSBug.test(attr.name)) {
+        attr.name = attr.name.replace(ieNSPrefix, '');
+        res.push(attr);
+      }
+    }
+    return res
+  }
+
+  function checkForAliasModel (el, value) {
+    var _el = el;
+    while (_el) {
+      if (_el.for && _el.alias === value) {
+        warn$1(
+          "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+          "You are binding v-model directly to a v-for iteration alias. " +
+          "This will not be able to modify the v-for source array because " +
+          "writing to the alias is like modifying a function local variable. " +
+          "Consider using an array of objects and use v-model on an object property instead."
+        );
+      }
+      _el = _el.parent;
+    }
+  }
+
+  /*  */
+
+  function preTransformNode (el, options) {
+    if (el.tag === 'input') {
+      var map = el.attrsMap;
+      if (!map['v-model']) {
+        return
+      }
+
+      var typeBinding;
+      if (map[':type'] || map['v-bind:type']) {
+        typeBinding = getBindingAttr(el, 'type');
+      }
+      if (!map.type && !typeBinding && map['v-bind']) {
+        typeBinding = "(" + (map['v-bind']) + ").type";
+      }
+
+      if (typeBinding) {
+        var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+        var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+        var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+        var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+        // 1. checkbox
+        var branch0 = cloneASTElement(el);
+        // process for on the main node
+        processFor(branch0);
+        addRawAttr(branch0, 'type', 'checkbox');
+        processElement(branch0, options);
+        branch0.processed = true; // prevent it from double-processed
+        branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
+        addIfCondition(branch0, {
+          exp: branch0.if,
+          block: branch0
+        });
+        // 2. add radio else-if condition
+        var branch1 = cloneASTElement(el);
+        getAndRemoveAttr(branch1, 'v-for', true);
+        addRawAttr(branch1, 'type', 'radio');
+        processElement(branch1, options);
+        addIfCondition(branch0, {
+          exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
+          block: branch1
+        });
+        // 3. other
+        var branch2 = cloneASTElement(el);
+        getAndRemoveAttr(branch2, 'v-for', true);
+        addRawAttr(branch2, ':type', typeBinding);
+        processElement(branch2, options);
+        addIfCondition(branch0, {
+          exp: ifCondition,
+          block: branch2
+        });
+
+        if (hasElse) {
+          branch0.else = true;
+        } else if (elseIfCondition) {
+          branch0.elseif = elseIfCondition;
+        }
+
+        return branch0
+      }
+    }
+  }
+
+  function cloneASTElement (el) {
+    return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+  }
+
+  var model = {
+    preTransformNode: preTransformNode
+  };
+
+  var modules = [
+    klass,
+    style,
+    model
+  ];
+
+  /*  */
+
+  var warn$2;
+
+  // in some cases, the event used has to be determined at runtime
+  // so we used some reserved tokens during compile.
+  var RANGE_TOKEN = '__r';
+
+  function model$1 (
+    el,
+    dir,
+    _warn
+  ) {
+    warn$2 = _warn;
+    var value = dir.value;
+    var modifiers = dir.modifiers;
+    var tag = el.tag;
+    var type = el.attrsMap.type;
+
+    {
+      // inputs with type="file" are read only and setting the input's
+      // value will throw an error.
+      if (tag === 'input' && type === 'file') {
+        warn$2(
+          "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+          "File inputs are read only. Use a v-on:change listener instead."
+        );
+      }
+    }
+
+    if (el.component) {
+      genComponentModel(el, value, modifiers);
+      // component v-model doesn't need extra runtime
+      return false
+    } else if (tag === 'select') {
+      genSelect(el, value, modifiers);
+    } else if (tag === 'input' && type === 'checkbox') {
+      genCheckboxModel(el, value, modifiers);
+    } else if (tag === 'input' && type === 'radio') {
+      genRadioModel(el, value, modifiers);
+    } else if (tag === 'input' || tag === 'textarea') {
+      genDefaultModel(el, value, modifiers);
+    } else {
+      genComponentModel(el, value, modifiers);
+      // component v-model doesn't need extra runtime
+      return false
+    }
+
+    // ensure runtime directive metadata
+    return true
+  }
+
+  function genCheckboxModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var valueBinding = getBindingAttr(el, 'value') || 'null';
+    var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+    var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+    addProp(el, 'checked',
+      "Array.isArray(" + value + ")" +
+      "?_i(" + value + "," + valueBinding + ")>-1" + (
+        trueValueBinding === 'true'
+          ? (":(" + value + ")")
+          : (":_q(" + value + "," + trueValueBinding + ")")
+      )
+    );
+    addHandler(el, 'change',
+      "var $$a=" + value + "," +
+          '$$el=$event.target,' +
+          "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+      'if(Array.isArray($$a)){' +
+        "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+            '$$i=_i($$a,$$v);' +
+        "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+        "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
+      "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+      null, true
+    );
+  }
+
+  function genRadioModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var valueBinding = getBindingAttr(el, 'value') || 'null';
+    valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+    addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+    addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+  }
+
+  function genSelect (
+    el,
+    value,
+    modifiers
+  ) {
+    var number = modifiers && modifiers.number;
+    var selectedVal = "Array.prototype.filter" +
+      ".call($event.target.options,function(o){return o.selected})" +
+      ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+      "return " + (number ? '_n(val)' : 'val') + "})";
+
+    var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+    var code = "var $$selectedVal = " + selectedVal + ";";
+    code = code + " " + (genAssignmentCode(value, assignment));
+    addHandler(el, 'change', code, null, true);
+  }
+
+  function genDefaultModel (
+    el,
+    value,
+    modifiers
+  ) {
+    var type = el.attrsMap.type;
+
+    // warn if v-bind:value conflicts with v-model
+    // except for inputs with v-bind:type
+    {
+      var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+      var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+      if (value$1 && !typeBinding) {
+        var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+        warn$2(
+          binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+          'because the latter already expands to a value binding internally'
+        );
+      }
+    }
+
+    var ref = modifiers || {};
+    var lazy = ref.lazy;
+    var number = ref.number;
+    var trim = ref.trim;
+    var needCompositionGuard = !lazy && type !== 'range';
+    var event = lazy
+      ? 'change'
+      : type === 'range'
+        ? RANGE_TOKEN
+        : 'input';
+
+    var valueExpression = '$event.target.value';
+    if (trim) {
+      valueExpression = "$event.target.value.trim()";
+    }
+    if (number) {
+      valueExpression = "_n(" + valueExpression + ")";
+    }
+
+    var code = genAssignmentCode(value, valueExpression);
+    if (needCompositionGuard) {
+      code = "if($event.target.composing)return;" + code;
+    }
+
+    addProp(el, 'value', ("(" + value + ")"));
+    addHandler(el, event, code, null, true);
+    if (trim || number) {
+      addHandler(el, 'blur', '$forceUpdate()');
+    }
+  }
+
+  /*  */
+
+  function text (el, dir) {
+    if (dir.value) {
+      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+    }
+  }
+
+  /*  */
+
+  function html (el, dir) {
+    if (dir.value) {
+      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+    }
+  }
+
+  var directives = {
+    model: model$1,
+    text: text,
+    html: html
+  };
+
+  /*  */
+
+  var baseOptions = {
+    expectHTML: true,
+    modules: modules,
+    directives: directives,
+    isPreTag: isPreTag,
+    isUnaryTag: isUnaryTag,
+    mustUseProp: mustUseProp,
+    canBeLeftOpenTag: canBeLeftOpenTag,
+    isReservedTag: isReservedTag,
+    getTagNamespace: getTagNamespace,
+    staticKeys: genStaticKeys(modules)
+  };
+
+  /*  */
+
+  var isStaticKey;
+  var isPlatformReservedTag;
+
+  var genStaticKeysCached = cached(genStaticKeys$1);
+
+  /**
+   * Goal of the optimizer: walk the generated template AST tree
+   * and detect sub-trees that are purely static, i.e. parts of
+   * the DOM that never needs to change.
+   *
+   * Once we detect these sub-trees, we can:
+   *
+   * 1. Hoist them into constants, so that we no longer need to
+   *    create fresh nodes for them on each re-render;
+   * 2. Completely skip them in the patching process.
+   */
+  function optimize (root, options) {
+    if (!root) { return }
+    isStaticKey = genStaticKeysCached(options.staticKeys || '');
+    isPlatformReservedTag = options.isReservedTag || no;
+    // first pass: mark all non-static nodes.
+    markStatic(root);
+    // second pass: mark static roots.
+    markStaticRoots(root, false);
+  }
+
+  function genStaticKeys$1 (keys) {
+    return makeMap(
+      'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+      (keys ? ',' + keys : '')
+    )
+  }
+
+  function markStatic (node) {
+    node.static = isStatic(node);
+    if (node.type === 1) {
+      // do not make component slot content static. this avoids
+      // 1. components not able to mutate slot nodes
+      // 2. static slot content fails for hot-reloading
+      if (
+        !isPlatformReservedTag(node.tag) &&
+        node.tag !== 'slot' &&
+        node.attrsMap['inline-template'] == null
+      ) {
+        return
+      }
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        var child = node.children[i];
+        markStatic(child);
+        if (!child.static) {
+          node.static = false;
+        }
+      }
+      if (node.ifConditions) {
+        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+          var block = node.ifConditions[i$1].block;
+          markStatic(block);
+          if (!block.static) {
+            node.static = false;
+          }
+        }
+      }
+    }
+  }
+
+  function markStaticRoots (node, isInFor) {
+    if (node.type === 1) {
+      if (node.static || node.once) {
+        node.staticInFor = isInFor;
+      }
+      // For a node to qualify as a static root, it should have children that
+      // are not just static text. Otherwise the cost of hoisting out will
+      // outweigh the benefits and it's better off to just always render it fresh.
+      if (node.static && node.children.length && !(
+        node.children.length === 1 &&
+        node.children[0].type === 3
+      )) {
+        node.staticRoot = true;
+        return
+      } else {
+        node.staticRoot = false;
+      }
+      if (node.children) {
+        for (var i = 0, l = node.children.length; i < l; i++) {
+          markStaticRoots(node.children[i], isInFor || !!node.for);
+        }
+      }
+      if (node.ifConditions) {
+        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+          markStaticRoots(node.ifConditions[i$1].block, isInFor);
+        }
+      }
+    }
+  }
+
+  function isStatic (node) {
+    if (node.type === 2) { // expression
+      return false
+    }
+    if (node.type === 3) { // text
+      return true
+    }
+    return !!(node.pre || (
+      !node.hasBindings && // no dynamic bindings
+      !node.if && !node.for && // not v-if or v-for or v-else
+      !isBuiltInTag(node.tag) && // not a built-in
+      isPlatformReservedTag(node.tag) && // not a component
+      !isDirectChildOfTemplateFor(node) &&
+      Object.keys(node).every(isStaticKey)
+    ))
+  }
+
+  function isDirectChildOfTemplateFor (node) {
+    while (node.parent) {
+      node = node.parent;
+      if (node.tag !== 'template') {
+        return false
       }
+      if (node.for) {
+        return true
+      }
+    }
+    return false
+  }
+
+  /*  */
+
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
+
+  // KeyboardEvent.keyCode aliases
+  var keyCodes = {
+    esc: 27,
+    tab: 9,
+    enter: 13,
+    space: 32,
+    up: 38,
+    left: 37,
+    right: 39,
+    down: 40,
+    'delete': [8, 46]
+  };
+
+  // KeyboardEvent.key aliases
+  var keyNames = {
+    // #7880: IE11 and Edge use `Esc` for Escape key name.
+    esc: ['Esc', 'Escape'],
+    tab: 'Tab',
+    enter: 'Enter',
+    space: ' ',
+    // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+    up: ['Up', 'ArrowUp'],
+    left: ['Left', 'ArrowLeft'],
+    right: ['Right', 'ArrowRight'],
+    down: ['Down', 'ArrowDown'],
+    'delete': ['Backspace', 'Delete']
+  };
+
+  // #4868: modifiers that prevent the execution of the listener
+  // need to explicitly return null so that we can determine whether to remove
+  // the listener for .once
+  var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+  var modifierCode = {
+    stop: '$event.stopPropagation();',
+    prevent: '$event.preventDefault();',
+    self: genGuard("$event.target !== $event.currentTarget"),
+    ctrl: genGuard("!$event.ctrlKey"),
+    shift: genGuard("!$event.shiftKey"),
+    alt: genGuard("!$event.altKey"),
+    meta: genGuard("!$event.metaKey"),
+    left: genGuard("'button' in $event && $event.button !== 0"),
+    middle: genGuard("'button' in $event && $event.button !== 1"),
+    right: genGuard("'button' in $event && $event.button !== 2")
+  };
+
+  function genHandlers (
+    events,
+    isNative
+  ) {
+    var res = isNative ? 'nativeOn:{' : 'on:{';
+    for (var name in events) {
+      res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
     }
+    return res.slice(0, -1) + '}'
   }
-  if (removeFromMap) {
-    delete el.attrsMap[name];
+
+  function genHandler (
+    name,
+    handler
+  ) {
+    if (!handler) {
+      return 'function(){}'
+    }
+
+    if (Array.isArray(handler)) {
+      return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+    }
+
+    var isMethodPath = simplePathRE.test(handler.value);
+    var isFunctionExpression = fnExpRE.test(handler.value);
+
+    if (!handler.modifiers) {
+      if (isMethodPath || isFunctionExpression) {
+        return handler.value
+      }
+      return ("function($event){" + (handler.value) + "}") // inline statement
+    } else {
+      var code = '';
+      var genModifierCode = '';
+      var keys = [];
+      for (var key in handler.modifiers) {
+        if (modifierCode[key]) {
+          genModifierCode += modifierCode[key];
+          // left/right
+          if (keyCodes[key]) {
+            keys.push(key);
+          }
+        } else if (key === 'exact') {
+          var modifiers = (handler.modifiers);
+          genModifierCode += genGuard(
+            ['ctrl', 'shift', 'alt', 'meta']
+              .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+              .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+              .join('||')
+          );
+        } else {
+          keys.push(key);
+        }
+      }
+      if (keys.length) {
+        code += genKeyFilter(keys);
+      }
+      // Make sure modifiers like prevent and stop get executed after key filtering
+      if (genModifierCode) {
+        code += genModifierCode;
+      }
+      var handlerCode = isMethodPath
+        ? ("return " + (handler.value) + "($event)")
+        : isFunctionExpression
+          ? ("return (" + (handler.value) + ")($event)")
+          : handler.value;
+      return ("function($event){" + code + handlerCode + "}")
+    }
   }
-  return val
-}
 
-/*  */
+  function genKeyFilter (keys) {
+    return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  }
 
-function transformNode (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticClass = getAndRemoveAttr(el, 'class');
-  if ("development" !== 'production' && staticClass) {
-    var res = parseText(staticClass, options.delimiters);
-    if (res) {
-      warn(
-        "class=\"" + staticClass + "\": " +
-        'Interpolation inside attributes has been removed. ' +
-        'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
-      );
+  function genFilterCode (key) {
+    var keyVal = parseInt(key, 10);
+    if (keyVal) {
+      return ("$event.keyCode!==" + keyVal)
     }
+    var keyCode = keyCodes[key];
+    var keyName = keyNames[key];
+    return (
+      "_k($event.keyCode," +
+      (JSON.stringify(key)) + "," +
+      (JSON.stringify(keyCode)) + "," +
+      "$event.key," +
+      "" + (JSON.stringify(keyName)) +
+      ")"
+    )
   }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
 
-function genData (el) {
-  var data = '';
-  if (el.staticClass) {
-    data += "staticClass:" + (el.staticClass) + ",";
-  }
-  if (el.classBinding) {
-    data += "class:" + (el.classBinding) + ",";
+  /*  */
+
+  function on (el, dir) {
+    if (dir.modifiers) {
+      warn("v-on without argument does not support modifiers.");
+    }
+    el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
   }
-  return data
-}
 
-var klass = {
-  staticKeys: ['staticClass'],
-  transformNode: transformNode,
-  genData: genData
-}
+  /*  */
 
-/*  */
+  function bind$1 (el, dir) {
+    el.wrapData = function (code) {
+      return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+    };
+  }
 
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
+  /*  */
 
-// normalize possible array / string values into Object
+  var baseDirectives = {
+    on: on,
+    bind: bind$1,
+    cloak: noop
+  };
 
+  /*  */
 
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
 
-/*  */
 
-function transformNode$1 (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
-    {
-      var res = parseText(staticStyle, options.delimiters);
-      if (res) {
-        warn(
-          "style=\"" + staticStyle + "\": " +
-          'Interpolation inside attributes has been removed. ' +
-          'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
-        );
-      }
-    }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-  }
 
-  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
-  }
-}
 
-function genData$1 (el) {
-  var data = '';
-  if (el.staticStyle) {
-    data += "staticStyle:" + (el.staticStyle) + ",";
-  }
-  if (el.styleBinding) {
-    data += "style:(" + (el.styleBinding) + "),";
-  }
-  return data
-}
-
-var style = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-}
-
-var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-
-
-
-
-function createCommonjsModule(fn, module) {
-	return module = { exports: {} }, fn(module, module.exports), module.exports;
-}
-
-var he = createCommonjsModule(function (module, exports) {
-/*! https://mths.be/he v1.1.1 by @mathias | MIT license */
-(function(root) {
-
-	// Detect free variables `exports`.
-	var freeExports = 'object' == 'object' && exports;
-
-	// Detect free variable `module`.
-	var freeModule = 'object' == 'object' && module &&
-		module.exports == freeExports && module;
-
-	// Detect free variable `global`, from Node.js or Browserified code,
-	// and use it as `root`.
-	var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal;
-	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
-		root = freeGlobal;
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	// All astral symbols.
-	var regexAstralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
-	// All ASCII symbols (not just printable ASCII) except those listed in the
-	// first column of the overrides table.
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides
-	var regexAsciiWhitelist = /[\x01-\x7F]/g;
-	// All BMP symbols that are not ASCII newlines, printable ASCII symbols, or
-	// code points listed in the first column of the overrides table on
-	// https://html.spec.whatwg.org/multipage/syntax.html#table-charref-overrides.
-	var regexBmpWhitelist = /[\x01-\t\x0B\f\x0E-\x1F\x7F\x81\x8D\x8F\x90\x9D\xA0-\uFFFF]/g;
-
-	var regexEncodeNonAscii = /<\u20D2|=\u20E5|>\u20D2|\u205F\u200A|\u219D\u0338|\u2202\u0338|\u2220\u20D2|\u2229\uFE00|\u222A\uFE00|\u223C\u20D2|\u223D\u0331|\u223E\u0333|\u2242\u0338|\u224B\u0338|\u224D\u20D2|\u224E\u0338|\u224F\u0338|\u2250\u0338|\u2261\u20E5|\u2264\u20D2|\u2265\u20D2|\u2266\u0338|\u2267\u0338|\u2268\uFE00|\u2269\uFE00|\u226A\u0338|\u226A\u20D2|\u226B\u0338|\u226B\u20D2|\u227F\u0338|\u2282\u20D2|\u2283\u20D2|\u228A\uFE00|\u228B\uFE00|\u228F\u0338|\u2290\u0338|\u2293\uFE00|\u2294\uFE00|\u22B4\u20D2|\u22B5\u20D2|\u22D8\u0338|\u22D9\u0338|\u22DA\uFE00|\u22DB\uFE00|\u22F5\u0338|\u22F9\u0338|\u2933\u0338|\u29CF\u0338|\u29D0\u0338|\u2A6D\u0338|\u2A70\u0338|\u2A7D\u0338|\u2A7E\u0338|\u2AA1\u0338|\u2AA2\u0338|\u2AAC\uFE00|\u2AAD\uFE00|\u2AAF\u0338|\u2AB0\u0338|\u2AC5\u0338|\u2AC6\u0338|\u2ACB\uFE00|\u2ACC\uFE00|\u2AFD\u20E5|[\xA0-\u0113\u0116-\u0122\u0124-\u012B\u012E-\u014D\u0150-\u017E\u0192\u01B5\u01F5\u0237\u02C6\u02C7\u02D8-\u02DD\u0311\u0391-\u03A1\u03A3-\u03A9\u03B1-\u03C9\u03D1\u03D2\u03D5\u03D6\u03DC\u03DD\u03F0\u03F1\u03F5\u03F6\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E\u045F\u2002-\u2005\u2007-\u2010\u2013-\u2016\u2018-\u201A\u201C-\u201E\u2020-\u2022\u2025\u2026\u2030-\u2035\u2039\u203A\u203E\u2041\u2043\u2044\u204F\u2057\u205F-\u2063\u20AC\u20DB\u20DC\u2102\u2105\u210A-\u2113\u2115-\u211E\u2122\u2124\u2127-\u2129\u212C\u212D\u212F-\u2131\u2133-\u2138\u2145-\u2148\u2153-\u215E\u2190-\u219B\u219D-\u21A7\u21A9-\u21AE\u21B0-\u21B3\u21B5-\u21B7\u21BA-\u21DB\u21DD\u21E4\u21E5\u21F5\u21FD-\u2205\u2207-\u2209\u220B\u220C\u220F-\u2214\u2216-\u2218\u221A\u221D-\u2238\u223A-\u2257\u2259\u225A\u225C\u225F-\u2262\u2264-\u228B\u228D-\u229B\u229D-\u22A5\u22A7-\u22B0\u22B2-\u22BB\u22BD-\u22DB\u22DE-\u22E3\u22E6-\u22F7\u22F9-\u22FE\u2305\u2306\u2308-\u2310\u2312\u2313\u2315\u2316\u231C-\u231F\u2322\u2323\u232D\u232E\u2336\u233D\u233F\u237C\u23B0\u23B1\u23B4-\u23B6\u23DC-\u23DF\u23E2\u23E7\u2423\u24C8\u2500\u2502\u250C\u2510\u2514\u2518\u251C\u2524\u252C\u2534\u253C\u2550-\u256C\u2580\u2584\u2588\u2591-\u2593\u25A1\u25AA\u25AB\u25AD\u25AE\u25B1\u25B3-\u25B5\u25B8\u25B9\u25BD-\u25BF\u25C2\u25C3\u25CA\u25CB\u25EC\u25EF\u25F8-\u25FC\u2605\u2606\u260E\u2640\u2642\u2660\u2663\u2665\u2666\u266A\u266D-\u266F\u2713\u2717\u2720\u2736\u2758\u2772\u2773\u27C8\u27C9\u27E6-\u27ED\u27F5-\u27FA\u27FC\u27FF\u2902-\u2905\u290C-\u2913\u2916\u2919-\u2920\u2923-\u292A\u2933\u2935-\u2939\u293C\u293D\u2945\u2948-\u294B\u294E-\u2976\u2978\u2979\u297B-\u297F\u2985\u2986\u298B-\u2996\u299A\u299C\u299D\u29A4-\u29B7\u29B9\u29BB\u29BC\u29BE-\u29C5\u29C9\u29CD-\u29D0\u29DC-\u29DE\u29E3-\u29E5\u29EB\u29F4\u29F6\u2A00-\u2A02\u2A04\u2A06\u2A0C\u2A0D\u2A10-\u2A17\u2A22-\u2A27\u2A29\u2A2A\u2A2D-\u2A31\u2A33-\u2A3C\u2A3F\u2A40\u2A42-\u2A4D\u2A50\u2A53-\u2A58\u2A5A-\u2A5D\u2A5F\u2A66\u2A6A\u2A6D-\u2A75\u2A77-\u2A9A\u2A9D-\u2AA2\u2AA4-\u2AB0\u2AB3-\u2AC8\u2ACB\u2ACC\u2ACF-\u2ADB\u2AE4\u2AE6-\u2AE9\u2AEB-\u2AF3\u2AFD\uFB00-\uFB04]|\uD835[\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDD04\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDD6B]/g;
-	var encodeMap = 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','\u2A73':'Esim','\u2A77':'eDDot','\u2A78':'equivDD','\u2A79':'ltcir','\u2A7A':'gtcir','\u2A7B':'ltquest','\u2A7C':'gtquest','\u2A7D':'les','\u2A7D\u0338':'nles','\u2A7E':'ges','\u2A7E\u0338':'nges','\u2A7F':'lesdot','\u2A80':'gesdot','\u2A81':'lesdoto','\u2A82':'gesdoto','\u2A83':'lesdotor','\u2A84':'gesdotol','\u2A85':'lap','\u2A86':'gap','\u2A87':'lne','\u2A88':'gne','\u2A89':'lnap','\u2A8A':'gnap','\u2A8B':'lEg','\u2A8C':'gEl','\u2A8D':'lsime','\u2A8E':'gsime','\u2A8F':'lsimg','\u2A90':'gsiml','\u2A91':'lgE','\u2A92':'glE','\u2A93':'lesges','\u2A94':'gesles','\u2A95':'els','\u2A96':'egs','\u2A97':'elsdot','\u2A98':'egsdot','\u2A99':'el','\u2A9A':'eg','\u2A9D':'siml','\u2A9E':'simg','\u2A9F':'simlE','\u2AA0':'simgE','\u2AA1':'LessLess','\u2AA1\u0338':'NotNestedLessLess','\u2AA2':'GreaterGreater','\u2AA2\u0338':'NotNestedGreaterGreater','\u2AA4':'glj','\u2AA5':'gla','\u2AA6':'ltcc','\u2AA7':'gtcc','\u2AA8':'lescc','\u2AA9':'gescc','\u2AAA':'smt','\u2AAB':'lat','\u2AAC':'smte','\u2AAC\uFE00':'smtes','\u2AAD':'late','\u2AAD\uFE00':'lates','\u2AAE':'bumpE','\u2AAF':'pre','\u2AAF\u0338':'npre','\u2AB0':'sce','\u2AB0\u0338':'nsce','\u2AB3':'prE','\u2AB4':'scE','\u2AB5':'prnE','\u2AB6':'scnE','\u2AB7':'prap','\u2AB8':'scap','\u2AB9':'prnap','\u2ABA':'scnap','\u2ABB':'Pr','\u2ABC':'Sc','\u2ABD':'subdot','\u2ABE':'supdot','\u2ABF':'subplus','\u2AC0':'supplus','\u2AC1':'submult','\u2AC2':'supmult','\u2AC3':'subedot','\u2AC4':'supedot','\u2AC5':'subE','\u2AC5\u0338':'nsubE','\u2AC6':'supE','\u2AC6\u0338':'nsupE','\u2AC7':'subsim','\u2AC8':'supsim','\u2ACB\uFE00':'vsubnE','\u2ACB':'subnE','\u2ACC\uFE00':'vsupnE','\u2ACC':'supnE','\u2ACF':'csub','\u2AD0':'csup','\u2AD1':'csube','\u2AD2':'csupe','\u2AD3':'subsup','\u2AD4':'supsub','\u2AD5':'subsub','\u2AD6':'supsup','\u2AD7':'suphsub','\u2AD8':'supdsub','\u2AD9':'forkv','\u2ADA':'topfork','\u2ADB':'mlcp','\u2AE4':'Dashv','\u2AE6':'Vdashl','\u2AE7':'Barv','\u2AE8':'vBar','\u2AE9':'vBarv','\u2AEB':'Vbar','\u2AEC':'Not','\u2AED':'bNot','\u2AEE':'rnmid','\u2AEF':'cirmid','\u2AF0':'midcir','\u2AF1':'topcir','\u2AF2':'nhpar','\u2AF3':'parsim','\u2AFD':'parsl','\u2AFD\u20E5':'nparsl','\u266D':'flat','\u266E':'natur','\u266F':'sharp','\xA4':'curren','\xA2':'cent','$':'dollar','\xA3':'pound','\xA5':'yen','\u20AC':'euro','\xB9':'sup1','\xBD':'half','\u2153':'frac13','\xBC':'frac14','\u2155':'frac15','\u2159':'frac16','\u215B':'frac18','\xB2':'sup2','\u2154':'frac23','\u2156':'frac25','\xB3':'sup3','\xBE':'frac34','\u2157':'frac35','\u215C':'frac38','\u2158':'frac45','\u215A':'frac56','\u215D':'frac58','\u215E':'frac78','\uD835\uDCB6':'ascr','\uD835\uDD52':'aopf','\uD835\uDD1E':'afr','\uD835\uDD38':'Aopf','\uD835\uDD04':'Afr','\uD835\uDC9C':'Ascr','\xAA':'ordf','\xE1':'aacute','\xC1':'Aacute','\xE0':'agrave','\xC0':'Agrave','\u0103':'abreve','\u0102':'Abreve','\xE2':'acirc','\xC2':'Acirc','\xE5':'aring','\xC5':'angst','\xE4':'auml','\xC4':'Auml','\xE3':'atilde','\xC3':'Atilde','\u0105':'aogon','\u0104':'Aogon','\u0101':'amacr','\u0100':'Amacr','\xE6':'aelig','\xC6':'AElig','\uD835\uDCB7':'bscr','\uD835\uDD53':'bopf','\uD835\uDD1F':'bfr','\uD835\uDD39':'Bopf','\u212C':'Bscr','\uD835\uDD05':'Bfr','\uD835\uDD20':'cfr','\uD835\uDCB8':'cscr','\uD835\uDD54':'copf','\u212D':'Cfr','\uD835\uDC9E':'Cscr','\u2102':'Copf','\u0107':'cacute','\u0106':'Cacute','\u0109':'ccirc','\u0108':'Ccirc','\u010D':'ccaron','\u010C':'Ccaron','\u010B':'cdot','\u010A':'Cdot','\xE7':'ccedil','\xC7':'Ccedil','\u2105':'incare','\uD835\uDD21':'dfr','\u2146':'dd','\uD835\uDD55':'dopf','\uD835\uDCB9':'dscr','\uD835\uDC9F':'Dscr','\uD835\uDD07':'Dfr','\u2145':'DD','\uD835\uDD3B':'Dopf','\u010F':'dcaron','\u010E':'Dcaron','\u0111':'dstrok','\u0110':'Dstrok','\xF0':'eth','\xD0':'ETH','\u2147':'ee','\u212F':'escr','\uD835\uDD22':'efr','\uD835\uDD56':'eopf','\u2130':'Escr','\uD835\uDD08':'Efr','\uD835\uDD3C':'Eopf','\xE9':'eacute','\xC9':'Eacute','\xE8':'egrave','\xC8':'Egrave','\xEA':'ecirc','\xCA':'Ecirc','\u011B':'ecaron','\u011A':'Ecaron','\xEB':'euml','\xCB':'Euml','\u0117':'edot','\u0116':'Edot','\u0119':'eogon','\u0118':'Eogon','\u0113':'emacr','\u0112':'Emacr','\uD835\uDD23':'ffr','\uD835\uDD57':'fopf','\uD835\uDCBB':'fscr','\uD835\uDD09':'Ffr','\uD835\uDD3D':'Fopf','\u2131':'Fscr','\uFB00':'fflig','\uFB03':'ffilig','\uFB04':'ffllig','\uFB01':'filig','fj':'fjlig','\uFB02':'fllig','\u0192':'fnof','\u210A':'gscr','\uD835\uDD58':'gopf','\uD835\uDD24':'gfr','\uD835\uDCA2':'Gscr','\uD835\uDD3E':'Gopf','\uD835\uDD0A':'Gfr','\u01F5':'gacute','\u011F':'gbreve','\u011E':'Gbreve','\u011D':'gcirc','\u011C':'Gcirc','\u0121':'gdot','\u0120':'Gdot','\u0122':'Gcedil','\uD835\uDD25':'hfr','\u210E':'planckh','\uD835\uDCBD':'hscr','\uD835\uDD59':'hopf','\u210B':'Hscr','\u210C':'Hfr','\u210D':'Hopf','\u0125':'hcirc','\u0124':'Hcirc','\u210F':'hbar','\u0127':'hstrok','\u0126':'Hstrok','\uD835\uDD5A':'iopf','\uD835\uDD26':'ifr','\uD835\uDCBE':'iscr','\u2148':'ii','\uD835\uDD40':'Iopf','\u2110':'Iscr','\u2111':'Im','\xED':'iacute','\xCD':'Iacute','\xEC':'igrave','\xCC':'Igrave','\xEE':'icirc','\xCE':'Icirc','\xEF':'iuml','\xCF':'Iuml','\u0129':'itilde','\u0128':'Itilde','\u0130':'Idot','\u012F':'iogon','\u012E':'Iogon','\u012B':'imacr','\u012A':'Imacr','\u0133':'ijlig','\u0132':'IJlig','\u0131':'imath','\uD835\uDCBF':'jscr','\uD835\uDD5B':'jopf','\uD835\uDD27':'jfr','\uD835\uDCA5':'Jscr','\uD835\uDD0D':'Jfr','\uD835\uDD41':'Jopf','\u0135':'jcirc','\u0134':'Jcirc','\u0237':'jmath','\uD835\uDD5C':'kopf','\uD835\uDCC0':'kscr','\uD835\uDD28':'kfr','\uD835\uDCA6':'Kscr','\uD835\uDD42':'Kopf','\uD835\uDD0E':'Kfr','\u0137':'kcedil','\u0136':'Kcedil','\uD835\uDD29':'lfr','\uD835\uDCC1':'lscr','\u2113':'ell','\uD835\uDD5D':'lopf','\u2112':'Lscr','\uD835\uDD0F':'Lfr','\uD835\uDD43':'Lopf','\u013A':'lacute','\u0139':'Lacute','\u013E':'lcaron','\u013D':'Lcaron','\u013C':'lcedil','\u013B':'Lcedil','\u0142':'lstrok','\u0141':'Lstrok','\u0140':'lmidot','\u013F':'Lmidot','\uD835\uDD2A':'mfr','\uD835\uDD5E':'mopf','\uD835\uDCC2':'mscr','\uD835\uDD10':'Mfr','\uD835\uDD44':'Mopf','\u2133':'Mscr','\uD835\uDD2B':'nfr','\uD835\uDD5F':'nopf','\uD835\uDCC3':'nscr','\u2115':'Nopf','\uD835\uDCA9':'Nscr','\uD835\uDD11':'Nfr','\u0144':'nacute','\u0143':'Nacute','\u0148':'ncaron','\u0147':'Ncaron','\xF1':'ntilde','\xD1':'Ntilde','\u0146':'ncedil','\u0145':'Ncedil','\u2116':'numero','\u014B':'eng','\u014A':'ENG','\uD835\uDD60':'oopf','\uD835\uDD2C':'ofr','\u2134':'oscr','\uD835\uDCAA':'Oscr','\uD835\uDD12':'Ofr','\uD835\uDD46':'Oopf','\xBA':'ordm','\xF3':'oacute','\xD3':'Oacute','\xF2':'ograve','\xD2':'Ograve','\xF4':'ocirc','\xD4':'Ocirc','\xF6':'ouml','\xD6':'Ouml','\u0151':'odblac','\u0150':'Odblac','\xF5':'otilde','\xD5':'Otilde','\xF8':'oslash','\xD8':'Oslash','\u014D':'omacr','\u014C':'Omacr','\u0153':'oelig','\u0152':'OElig','\uD835\uDD2D':'pfr','\uD835\uDCC5':'pscr','\uD835\uDD61':'popf','\u2119':'Popf','\uD835\uDD13':'Pfr','\uD835\uDCAB':'Pscr','\uD835\uDD62':'qopf','\uD835\uDD2E':'qfr','\uD835\uDCC6':'qscr','\uD835\uDCAC':'Qscr','\uD835\uDD14':'Qfr','\u211A':'Qopf','\u0138':'kgreen','\uD835\uDD2F':'rfr','\uD835\uDD63':'ropf','\uD835\uDCC7':'rscr','\u211B':'Rscr','\u211C':'Re','\u211D':'Ropf','\u0155':'racute','\u0154':'Racute','\u0159':'rcaron','\u0158':'Rcaron','\u0157':'rcedil','\u0156':'Rcedil','\uD835\uDD64':'sopf','\uD835\uDCC8':'sscr','\uD835\uDD30':'sfr','\uD835\uDD4A':'Sopf','\uD835\uDD16':'Sfr','\uD835\uDCAE':'Sscr','\u24C8':'oS','\u015B':'sacute','\u015A':'Sacute','\u015D':'scirc','\u015C':'Scirc','\u0161':'scaron','\u0160':'Scaron','\u015F':'scedil','\u015E':'Scedil','\xDF':'szlig','\uD835\uDD31':'tfr','\uD835\uDCC9':'tscr','\uD835\uDD65':'topf','\uD835\uDCAF':'Tscr','\uD835\uDD17':'Tfr','\uD835\uDD4B':'Topf','\u0165':'tcaron','\u0164':'Tcaron','\u0163':'tcedil','\u0162':'Tcedil','\u2122':'trade','\u0167':'tstrok','\u0166':'Tstrok','\uD835\uDCCA':'uscr','\uD835\uDD66':'uopf','\uD835\uDD32':'ufr','\uD835\uDD4C':'Uopf','\uD835\uDD18':'Ufr','\uD835\uDCB0':'Uscr','\xFA':'uacute','\xDA':'Uacute','\xF9':'ugrave','\xD9':'Ugrave','\u016D':'ubreve','\u016C':'Ubreve','\xFB':'ucirc','\xDB':'Ucirc','\u016F':'uring','\u016E':'Uring','\xFC':'uuml','\xDC':'Uuml','\u0171':'udblac','\u0170':'Udblac','\u0169':'utilde','\u0168':'Utilde','\u0173':'uogon','\u0172':'Uogon','\u016B':'umacr','\u016A':'Umacr','\uD835\uDD33':'vfr','\uD835\uDD67':'vopf','\uD835\uDCCB':'vscr','\uD835\uDD19':'Vfr','\uD835\uDD4D':'Vopf','\uD835\uDCB1':'Vscr','\uD835\uDD68':'wopf','\uD835\uDCCC':'wscr','\uD835\uDD34':'wfr','\uD835\uDCB2':'Wscr','\uD835\uDD4E':'Wopf','\uD835\uDD1A':'Wfr','\u0175':'wcirc','\u0174':'Wcirc','\uD835\uDD35':'xfr','\uD835\uDCCD':'xscr','\uD835\uDD69':'xopf','\uD835\uDD4F':'Xopf','\uD835\uDD1B':'Xfr','\uD835\uDCB3':'Xscr','\uD835\uDD36':'yfr','\uD835\uDCCE':'yscr','\uD835\uDD6A':'yopf','\uD835\uDCB4':'Yscr','\uD835\uDD1C':'Yfr','\uD835\uDD50':'Yopf','\xFD':'yacute','\xDD':'Yacute','\u0177':'ycirc','\u0176':'Ycirc','\xFF':'yuml','\u0178':'Yuml','\uD835\uDCCF':'zscr','\uD835\uDD37':'zfr','\uD835\uDD6B':'zopf','\u2128':'Zfr','\u2124':'Zopf','\uD835\uDCB5':'Zscr','\u017A':'zacute','\u0179':'Zacute','\u017E':'zcaron','\u017D':'Zcaron','\u017C':'zdot','\u017B':'Zdot','\u01B5':'imped','\xFE':'thorn','\xDE':'THORN','\u0149':'napos','\u03B1':'alpha','\u0391':'Alpha','\u03B2':'beta','\u0392':'Beta','\u03B3':'gamma','\u0393':'Gamma','\u03B4':'delta','\u0394':'Delta','\u03B5':'epsi','\u03F5':'epsiv','\u0395':'Epsilon','\u03DD':'gammad','\u03DC':'Gammad','\u03B6':'zeta','\u0396':'Zeta','\u03B7':'eta','\u0397':'Eta','\u03B8':'theta','\u03D1':'thetav','\u0398':'Theta','\u03B9':'iota','\u0399':'Iota','\u03BA':'kappa','\u03F0':'kappav','\u039A':'Kappa','\u03BB':'lambda','\u039B':'Lambda','\u03BC':'mu','\xB5':'micro','\u039C':'Mu','\u03BD':'nu','\u039D':'Nu','\u03BE':'xi','\u039E':'Xi','\u03BF':'omicron','\u039F':'Omicron','\u03C0':'pi','\u03D6':'piv','\u03A0':'Pi','\u03C1':'rho','\u03F1':'rhov','\u03A1':'Rho','\u03C3':'sigma','\u03A3':'Sigma','\u03C2':'sigmaf','\u03C4':'tau','\u03A4':'Tau','\u03C5':'upsi','\u03A5':'Upsilon','\u03D2':'Upsi','\u03C6':'phi','\u03D5':'phiv','\u03A6':'Phi','\u03C7':'chi','\u03A7':'Chi','\u03C8':'psi','\u03A8':'Psi','\u03C9':'omega','\u03A9':'ohm','\u0430':'acy','\u0410':'Acy','\u0431':'bcy','\u0411':'Bcy','\u0432':'vcy','\u0412':'Vcy','\u0433':'gcy','\u0413':'Gcy','\u0453':'gjcy','\u0403':'GJcy','\u0434':'dcy','\u0414':'Dcy','\u0452':'djcy','\u0402':'DJcy','\u0435':'iecy','\u0415':'IEcy','\u0451':'iocy','\u0401':'IOcy','\u0454':'jukcy','\u0404':'Jukcy','\u0436':'zhcy','\u0416':'ZHcy','\u0437':'zcy','\u0417':'Zcy','\u0455':'dscy','\u0405':'DScy','\u0438':'icy','\u0418':'Icy','\u0456':'iukcy','\u0406':'Iukcy','\u0457':'yicy','\u0407':'YIcy','\u0439':'jcy','\u0419':'Jcy','\u0458':'jsercy','\u0408':'Jsercy','\u043A':'kcy','\u041A':'Kcy','\u045C':'kjcy','\u040C':'KJcy','\u043B':'lcy','\u041B':'Lcy','\u0459':'ljcy','\u0409':'LJcy','\u043C':'mcy','\u041C':'Mcy','\u043D':'ncy','\u041D':'Ncy','\u045A':'njcy','\u040A':'NJcy','\u043E':'ocy','\u041E':'Ocy','\u043F':'pcy','\u041F':'Pcy','\u0440':'rcy','\u0420':'Rcy','\u0441':'scy','\u0421':'Scy','\u0442':'tcy','\u0422':'Tcy','\u045B':'tshcy','\u040B':'TSHcy','\u0443':'ucy','\u0423':'Ucy','\u045E':'ubrcy','\u040E':'Ubrcy','\u0444':'fcy','\u0424':'Fcy','\u0445':'khcy','\u0425':'KHcy','\u0446':'tscy','\u0426':'TScy','\u0447':'chcy','\u0427':'CHcy','\u045F':'dzcy','\u040F':'DZcy','\u0448':'shcy','\u0428':'SHcy','\u0449':'shchcy','\u0429':'SHCHcy','\u044A':'hardcy','\u042A':'HARDcy','\u044B':'ycy','\u042B':'Ycy','\u044C':'softcy','\u042C':'SOFTcy','\u044D':'ecy','\u042D':'Ecy','\u044E':'yucy','\u042E':'YUcy','\u044F':'yacy','\u042F':'YAcy','\u2135':'aleph','\u2136':'beth','\u2137':'gimel','\u2138':'daleth'};
-
-	var regexEscape = /["&'<>`]/g;
-	var escapeMap = {
-		'"': '&quot;',
-		'&': '&amp;',
-		'\'': '&#x27;',
-		'<': '&lt;',
-		// See https://mathiasbynens.be/notes/ambiguous-ampersands: in HTML, the
-		// following is not strictly necessary unless it’s part of a tag or an
-		// unquoted attribute value. We’re only escaping it to support those
-		// situations, and for XML support.
-		'>': '&gt;',
-		// In Internet Explorer ≤ 8, the backtick character can be used
-		// to break out of (un)quoted attribute values or HTML comments.
-		// See http://html5sec.org/#102, http://html5sec.org/#108, and
-		// http://html5sec.org/#133.
-		'`': '&#x60;'
-	};
-
-	var regexInvalidEntity = /&#(?:[xX][^a-fA-F0-9]|[^0-9xX])/;
-	var regexInvalidRawCodePoint = /[\0-\x08\x0B\x0E-\x1F\x7F-\x9F\uFDD0-\uFDEF\uFFFE\uFFFF]|[\uD83F\uD87F\uD8BF\uD8FF\uD93F\uD97F\uD9BF\uD9FF\uDA3F\uDA7F\uDABF\uDAFF\uDB3F\uDB7F\uDBBF\uDBFF][\uDFFE\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
-	var regexDecode = /&#([0-9]+)(;?)|&#[xX]([a-fA-F0-9]+)(;?)|&([0-9a-zA-Z]+);|&(Aacute|Agrave|Atilde|Ccedil|Eacute|Egrave|Iacute|Igrave|Ntilde|Oacute|Ograve|Oslash|Otilde|Uacute|Ugrave|Yacute|aacute|agrave|atilde|brvbar|ccedil|curren|divide|eacute|egrave|frac12|frac14|frac34|iacute|igrave|iquest|middot|ntilde|oacute|ograve|oslash|otilde|plusmn|uacute|ugrave|yacute|AElig|Acirc|Aring|Ecirc|Icirc|Ocirc|THORN|Ucirc|acirc|acute|aelig|aring|cedil|ecirc|icirc|iexcl|laquo|micro|ocirc|pound|raquo|szlig|thorn|times|ucirc|Auml|COPY|Euml|Iuml|Ouml|QUOT|Uuml|auml|cent|copy|euml|iuml|macr|nbsp|ordf|ordm|ouml|para|quot|sect|sup1|sup2|sup3|uuml|yuml|AMP|ETH|REG|amp|deg|eth|not|reg|shy|uml|yen|GT|LT|gt|lt)([=a-zA-Z0-9])?/g;
-	var decodeMap = {'aacute':'\xE1','Aacute':'\xC1','abreve':'\u0103','Abreve':'\u0102','ac':'\u223E','acd':'\u223F','acE':'\u223E\u0333','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','acy':'\u0430','Acy':'\u0410','aelig':'\xE6','AElig':'\xC6','af':'\u2061','afr':'\uD835\uDD1E','Afr':'\uD835\uDD04','agrave':'\xE0','Agrave':'\xC0','alefsym':'\u2135','aleph':'\u2135','alpha':'\u03B1','Alpha':'\u0391','amacr':'\u0101','Amacr':'\u0100','amalg':'\u2A3F','amp':'&','AMP':'&','and':'\u2227','And':'\u2A53','andand':'\u2A55','andd':'\u2A5C','andslope':'\u2A58','andv':'\u2A5A','ang':'\u2220','ange':'\u29A4','angle':'\u2220','angmsd':'\u2221','angmsdaa':'\u29A8','angmsdab':'\u29A9','angmsdac':'\u29AA','angmsdad':'\u29AB','angmsdae':'\u29AC','angmsdaf':'\u29AD','angmsdag':'\u29AE','angmsdah':'\u29AF','angrt':'\u221F','angrtvb':'\u22BE','angrtvbd':'\u299D','angsph':'\u2222','angst':'\xC5','angzarr':'\u237C','aogon':'\u0105','Aogon':'\u0104','aopf':'\uD835\uDD52','Aopf':'\uD835\uDD38','ap':'\u2248','apacir':'\u2A6F','ape':'\u224A','apE':'\u2A70','apid':'\u224B','apos':'\'','ApplyFunction':'\u2061','approx':'\u2248','approxeq':'\u224A','aring':'\xE5','Aring':'\xC5','ascr':'\uD835\uDCB6','Ascr':'\uD835\uDC9C','Assign':'\u2254','ast':'*','asymp':'\u2248','asympeq':'\u224D','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','awconint':'\u2233','awint':'\u2A11','backcong':'\u224C','backepsilon':'\u03F6','backprime':'\u2035','backsim':'\u223D','backsimeq':'\u22CD','Backslash':'\u2216','Barv':'\u2AE7','barvee':'\u22BD','barwed':'\u2305','Barwed':'\u2306','barwedge':'\u2305','bbrk':'\u23B5','bbrktbrk':'\u23B6','bcong':'\u224C','bcy':'\u0431','Bcy':'\u0411','bdquo':'\u201E','becaus':'\u2235','because':'\u2235','Because':'\u2235','bemptyv':'\u29B0','bepsi':'\u03F6','bernou':'\u212C','Bernoullis':'\u212C','beta':'\u03B2','Beta':'\u0392','beth':'\u2136','between':'\u226C','bfr':'\uD835\uDD1F','Bfr':'\uD835\uDD05','bigcap':'\u22C2','bigcirc':'\u25EF','bigcup':'\u22C3','bigodot':'\u2A00','bigoplus':'\u2A01','bigotimes':'\u2A02','bigsqcup':'\u2A06','bigstar':'\u2605','bigtriangledown':'\u25BD','bigtriangleup':'\u25B3','biguplus':'\u2A04','bigvee':'\u22C1','bigwedge':'\u22C0','bkarow':'\u290D','blacklozenge':'\u29EB','blacksquare':'\u25AA','blacktriangle':'\u25B4','blacktriangledown':'\u25BE','blacktriangleleft':'\u25C2','blacktriangleright':'\u25B8','blank':'\u2423','blk12':'\u2592','blk14':'\u2591','blk34':'\u2593','block':'\u2588','bne':'=\u20E5','bnequiv':'\u2261\u20E5','bnot':'\u2310','bNot':'\u2AED','bopf':'\uD835\uDD53','Bopf':'\uD835\uDD39','bot':'\u22A5','bottom':'\u22A5','bowtie':'\u22C8','boxbox':'\u29C9','boxdl':'\u2510','boxdL':'\u2555','boxDl':'\u2556','boxDL':'\u2557','boxdr':'\u250C','boxdR':'\u2552','boxDr':'\u2553','boxDR':'\u2554','boxh':'\u2500','boxH':'\u2550','boxhd':'\u252C','boxhD':'\u2565','boxHd':'\u2564','boxHD':'\u2566','boxhu':'\u2534','boxhU':'\u2568','boxHu':'\u2567','boxHU':'\u2569','boxminus':'\u229F','boxplus':'\u229E','boxtimes':'\u22A0','boxul':'\u2518','boxuL':'\u255B','boxUl':'\u255C','boxUL':'\u255D','boxur':'\u2514','boxuR':'\u2558','boxUr':'\u2559','boxUR':'\u255A','boxv':'\u2502','boxV':'\u2551','boxvh':'\u253C','boxvH':'\u256A','boxVh':'\u256B','boxVH':'\u256C','boxvl':'\u2524','boxvL':'\u2561','boxVl':'\u2562','boxVL':'\u2563','boxvr':'\u251C','boxvR':'\u255E','boxVr':'\u255F','boxVR':'\u2560','bprime':'\u2035','breve':'\u02D8','Breve':'\u02D8','brvbar':'\xA6','bscr':'\uD835\uDCB7','Bscr':'\u212C','bsemi':'\u204F','bsim':'\u223D','bsime':'\u22CD','bsol':'\\','bsolb':'\u29C5','bsolhsub':'\u27C8','bull':'\u2022','bullet':'\u2022','bump':'\u224E','bumpe':'\u224F','bumpE':'\u2AAE','bumpeq':'\u224F','Bumpeq':'\u224E','cacute':'\u0107','Cacute':'\u0106','cap':'\u2229','Cap':'\u22D2','capand':'\u2A44','capbrcup':'\u2A49','capcap':'\u2A4B','capcup':'\u2A47','capdot':'\u2A40','CapitalDifferentialD':'\u2145','caps':'\u2229\uFE00','caret':'\u2041','caron':'\u02C7','Cayleys':'\u212D','ccaps':'\u2A4D','ccaron':'\u010D','Ccaron':'\u010C','ccedil':'\xE7','Ccedil':'\xC7','ccirc':'\u0109','Ccirc':'\u0108','Cconint':'\u2230','ccups':'\u2A4C','ccupssm':'\u2A50','cdot':'\u010B','Cdot':'\u010A','cedil':'\xB8','Cedilla':'\xB8','cemptyv':'\u29B2','cent':'\xA2','centerdot':'\xB7','CenterDot':'\xB7','cfr':'\uD835\uDD20','Cfr':'\u212D','chcy':'\u0447','CHcy':'\u0427','check':'\u2713','checkmark':'\u2713','chi':'\u03C7','Chi':'\u03A7','cir':'\u25CB','circ':'\u02C6','circeq':'\u2257','circlearrowleft':'\u21BA','circlearrowright':'\u21BB','circledast':'\u229B','circledcirc':'\u229A','circleddash':'\u229D','CircleDot':'\u2299','circledR':'\xAE','circledS':'\u24C8','CircleMinus':'\u2296','CirclePlus':'\u2295','CircleTimes':'\u2297','cire':'\u2257','cirE':'\u29C3','cirfnint':'\u2A10','cirmid':'\u2AEF','cirscir':'\u29C2','ClockwiseContourIntegral':'\u2232','CloseCurlyDoubleQuote':'\u201D','CloseCurlyQuote':'\u2019','clubs':'\u2663','clubsuit':'\u2663','colon':':','Colon':'\u2237','colone':'\u2254','Colone':'\u2A74','coloneq':'\u2254','comma':',','commat':'@','comp':'\u2201','compfn':'\u2218','complement':'\u2201','complexes':'\u2102','cong':'\u2245','congdot':'\u2A6D','Congruent':'\u2261','conint':'\u222E','Conint':'\u222F','ContourIntegral':'\u222E','copf':'\uD835\uDD54','Copf':'\u2102','coprod':'\u2210','Coproduct':'\u2210','copy':'\xA9','COPY':'\xA9','copysr':'\u2117','CounterClockwiseContourIntegral':'\u2233','crarr':'\u21B5','cross':'\u2717','Cross':'\u2A2F','cscr':'\uD835\uDCB8','Cscr':'\uD835\uDC9E','csub':'\u2ACF','csube':'\u2AD1','csup':'\u2AD0','csupe':'\u2AD2','ctdot':'\u22EF','cudarrl':'\u2938','cudarrr':'\u2935','cuepr':'\u22DE','cuesc':'\u22DF','cularr':'\u21B6','cularrp':'\u293D','cup':'\u222A','Cup':'\u22D3','cupbrcap':'\u2A48','cupcap':'\u2A46','CupCap':'\u224D','cupcup':'\u2A4A','cupdot':'\u228D','cupor':'\u2A45','cups':'\u222A\uFE00','curarr':'\u21B7','curarrm':'\u293C','curlyeqprec':'\u22DE','curlyeqsucc':'\u22DF','curlyvee':'\u22CE','curlywedge':'\u22CF','curren':'\xA4','curvearrowleft':'\u21B6','curvearrowright':'\u21B7','cuvee':'\u22CE','cuwed':'\u22CF','cwconint':'\u2232','cwint':'\u2231','cylcty':'\u232D','dagger':'\u2020','Dagger':'\u2021','daleth':'\u2138','darr':'\u2193','dArr':'\u21D3','Darr':'\u21A1','dash':'\u2010','dashv':'\u22A3','Dashv':'\u2AE4','dbkarow':'\u290F','dblac':'\u02DD','dcaron':'\u010F','Dcaron':'\u010E','dcy':'\u0434','Dcy':'\u0414','dd':'\u2146','DD':'\u2145','ddagger':'\u2021','ddarr':'\u21CA','DDotrahd':'\u2911','ddotseq':'\u2A77','deg':'\xB0','Del':'\u2207','delta':'\u03B4','Delta':'\u0394','demptyv':'\u29B1','dfisht':'\u297F','dfr':'\uD835\uDD21','Dfr':'\uD835\uDD07','dHar':'\u2965','dharl':'\u21C3','dharr':'\u21C2','DiacriticalAcute':'\xB4','DiacriticalDot':'\u02D9','DiacriticalDoubleAcute':'\u02DD','DiacriticalGrave':'`','DiacriticalTilde':'\u02DC','diam':'\u22C4','diamond':'\u22C4','Diamond':'\u22C4','diamondsuit':'\u2666','diams':'\u2666','die':'\xA8','DifferentialD':'\u2146','digamma':'\u03DD','disin':'\u22F2','div':'\xF7','divide':'\xF7','divideontimes':'\u22C7','divonx':'\u22C7','djcy':'\u0452','DJcy':'\u0402','dlcorn':'\u231E','dlcrop':'\u230D','dollar':'$','dopf':'\uD835\uDD55','Dopf':'\uD835\uDD3B','dot':'\u02D9','Dot':'\xA8','DotDot':'\u20DC','doteq':'\u2250','doteqdot':'\u2251','DotEqual':'\u2250','dotminus':'\u2238','dotplus':'\u2214','dotsquare':'\u22A1','doublebarwedge':'\u2306','DoubleContourIntegral':'\u222F','DoubleDot':'\xA8','DoubleDownArrow':'\u21D3','DoubleLeftArrow':'\u21D0','DoubleLeftRightArrow':'\u21D4','DoubleLeftTee':'\u2AE4','DoubleLongLeftArrow':'\u27F8','DoubleLongLeftRightArrow':'\u27FA','DoubleLongRightArrow':'\u27F9','DoubleRightArrow':'\u21D2','DoubleRightTee':'\u22A8','DoubleUpArrow':'\u21D1','DoubleUpDownArrow':'\u21D5','DoubleVerticalBar':'\u2225','downarrow':'\u2193','Downarrow':'\u21D3','DownArrow':'\u2193','DownArrowBar':'\u2913','DownArrowUpArrow':'\u21F5','DownBreve':'\u0311','downdownarrows':'\u21CA','downharpoonleft':'\u21C3','downharpoonright':'\u21C2','DownLeftRightVector':'\u2950','DownLeftTeeVector':'\u295E','DownLeftVector':'\u21BD','DownLeftVectorBar':'\u2956','DownRightTeeVector':'\u295F','DownRightVector':'\u21C1','DownRightVectorBar':'\u2957','DownTee':'\u22A4','DownTeeArrow':'\u21A7','drbkarow':'\u2910','drcorn':'\u231F','drcrop':'\u230C','dscr':'\uD835\uDCB9','Dscr':'\uD835\uDC9F','dscy':'\u0455','DScy':'\u0405','dsol':'\u29F6','dstrok':'\u0111','Dstrok':'\u0110','dtdot':'\u22F1','dtri':'\u25BF','dtrif':'\u25BE','duarr':'\u21F5','duhar':'\u296F','dwangle':'\u29A6','dzcy':'\u045F','DZcy':'\u040F','dzigrarr':'\u27FF','eacute':'\xE9','Eacute':'\xC9','easter':'\u2A6E','ecaron':'\u011B','Ecaron':'\u011A','ecir':'\u2256','ecirc':'\xEA','Ecirc':'\xCA','ecolon':'\u2255','ecy':'\u044D','Ecy':'\u042D','eDDot':'\u2A77','edot':'\u0117','eDot':'\u2251','Edot':'\u0116','ee':'\u2147','efDot':'\u2252','efr':'\uD835\uDD22','Efr':'\uD835\uDD08','eg':'\u2A9A','egrave':'\xE8','Egrave':'\xC8','egs':'\u2A96','egsdot':'\u2A98','el':'\u2A99','Element':'\u2208','elinters':'\u23E7','ell':'\u2113','els':'\u2A95','elsdot':'\u2A97','emacr':'\u0113','Emacr':'\u0112','empty':'\u2205','emptyset':'\u2205','EmptySmallSquare':'\u25FB','emptyv':'\u2205','EmptyVerySmallSquare':'\u25AB','emsp':'\u2003','emsp13':'\u2004','emsp14':'\u2005','eng':'\u014B','ENG':'\u014A','ensp':'\u2002','eogon':'\u0119','Eogon':'\u0118','eopf':'\uD835\uDD56','Eopf':'\uD835\uDD3C','epar':'\u22D5','eparsl':'\u29E3','eplus':'\u2A71','epsi':'\u03B5','epsilon':'\u03B5','Epsilon':'\u0395','epsiv':'\u03F5','eqcirc':'\u2256','eqcolon':'\u2255','eqsim':'\u2242','eqslantgtr':'\u2A96','eqslantless':'\u2A95','Equal':'\u2A75','equals':'=','EqualTilde':'\u2242','equest':'\u225F','Equilibrium':'\u21CC','equiv':'\u2261','equivDD':'\u2A78','eqvparsl':'\u29E5','erarr':'\u2971','erDot':'\u2253','escr':'\u212F','Escr':'\u2130','esdot':'\u2250','esim':'\u2242','Esim':'\u2A73','eta':'\u03B7','Eta':'\u0397','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','euro':'\u20AC','excl':'!','exist':'\u2203','Exists':'\u2203','expectation':'\u2130','exponentiale':'\u2147','ExponentialE':'\u2147','fallingdotseq':'\u2252','fcy':'\u0444','Fcy':'\u0424','female':'\u2640','ffilig':'\uFB03','fflig':'\uFB00','ffllig':'\uFB04','ffr':'\uD835\uDD23','Ffr':'\uD835\uDD09','filig':'\uFB01','FilledSmallSquare':'\u25FC','FilledVerySmallSquare':'\u25AA','fjlig':'fj','flat':'\u266D','fllig':'\uFB02','fltns':'\u25B1','fnof':'\u0192','fopf':'\uD835\uDD57','Fopf':'\uD835\uDD3D','forall':'\u2200','ForAll':'\u2200','fork':'\u22D4','forkv':'\u2AD9','Fouriertrf':'\u2131','fpartint':'\u2A0D','frac12':'\xBD','frac13':'\u2153','frac14':'\xBC','frac15':'\u2155','frac16':'\u2159','frac18':'\u215B','frac23':'\u2154','frac25':'\u2156','frac34':'\xBE','frac35':'\u2157','frac38':'\u215C','frac45':'\u2158','frac56':'\u215A','frac58':'\u215D','frac78':'\u215E','frasl':'\u2044','frown':'\u2322','fscr':'\uD835\uDCBB','Fscr':'\u2131','gacute':'\u01F5','gamma':'\u03B3','Gamma':'\u0393','gammad':'\u03DD','Gammad':'\u03DC','gap':'\u2A86','gbreve':'\u011F','Gbreve':'\u011E','Gcedil':'\u0122','gcirc':'\u011D','Gcirc':'\u011C','gcy':'\u0433','Gcy':'\u0413','gdot':'\u0121','Gdot':'\u0120','ge':'\u2265','gE':'\u2267','gel':'\u22DB','gEl':'\u2A8C','geq':'\u2265','geqq':'\u2267','geqslant':'\u2A7E','ges':'\u2A7E','gescc':'\u2AA9','gesdot':'\u2A80','gesdoto':'\u2A82','gesdotol':'\u2A84','gesl':'\u22DB\uFE00','gesles':'\u2A94','gfr':'\uD835\uDD24','Gfr':'\uD835\uDD0A','gg':'\u226B','Gg':'\u22D9','ggg':'\u22D9','gimel':'\u2137','gjcy':'\u0453','GJcy':'\u0403','gl':'\u2277','gla':'\u2AA5','glE':'\u2A92','glj':'\u2AA4','gnap':'\u2A8A','gnapprox':'\u2A8A','gne':'\u2A88','gnE':'\u2269','gneq':'\u2A88','gneqq':'\u2269','gnsim':'\u22E7','gopf':'\uD835\uDD58','Gopf':'\uD835\uDD3E','grave':'`','GreaterEqual':'\u2265','GreaterEqualLess':'\u22DB','GreaterFullEqual':'\u2267','GreaterGreater':'\u2AA2','GreaterLess':'\u2277','GreaterSlantEqual':'\u2A7E','GreaterTilde':'\u2273','gscr':'\u210A','Gscr':'\uD835\uDCA2','gsim':'\u2273','gsime':'\u2A8E','gsiml':'\u2A90','gt':'>','Gt':'\u226B','GT':'>','gtcc':'\u2AA7','gtcir':'\u2A7A','gtdot':'\u22D7','gtlPar':'\u2995','gtquest':'\u2A7C','gtrapprox':'\u2A86','gtrarr':'\u2978','gtrdot':'\u22D7','gtreqless':'\u22DB','gtreqqless':'\u2A8C','gtrless':'\u2277','gtrsim':'\u2273','gvertneqq':'\u2269\uFE00','gvnE':'\u2269\uFE00','Hacek':'\u02C7','hairsp':'\u200A','half':'\xBD','hamilt':'\u210B','hardcy':'\u044A','HARDcy':'\u042A','harr':'\u2194','hArr':'\u21D4','harrcir':'\u2948','harrw':'\u21AD','Hat':'^','hbar':'\u210F','hcirc':'\u0125','Hcirc':'\u0124','hearts':'\u2665','heartsuit':'\u2665','hellip':'\u2026','hercon':'\u22B9','hfr':'\uD835\uDD25','Hfr':'\u210C','HilbertSpace':'\u210B','hksearow':'\u2925','hkswarow':'\u2926','hoarr':'\u21FF','homtht':'\u223B','hookleftarrow':'\u21A9','hookrightarrow':'\u21AA','hopf':'\uD835\uDD59','Hopf':'\u210D','horbar':'\u2015','HorizontalLine':'\u2500','hscr':'\uD835\uDCBD','Hscr':'\u210B','hslash':'\u210F','hstrok':'\u0127','Hstrok':'\u0126','HumpDownHump':'\u224E','HumpEqual':'\u224F','hybull':'\u2043','hyphen':'\u2010','iacute':'\xED','Iacute':'\xCD','ic':'\u2063','icirc':'\xEE','Icirc':'\xCE','icy':'\u0438','Icy':'\u0418','Idot':'\u0130','iecy':'\u0435','IEcy':'\u0415','iexcl':'\xA1','iff':'\u21D4','ifr':'\uD835\uDD26','Ifr':'\u2111','igrave':'\xEC','Igrave':'\xCC','ii':'\u2148','iiiint':'\u2A0C','iiint':'\u222D','iinfin':'\u29DC','iiota':'\u2129','ijlig':'\u0133','IJlig':'\u0132','Im':'\u2111','imacr':'\u012B','Imacr':'\u012A','image':'\u2111','ImaginaryI':'\u2148','imagline':'\u2110','imagpart':'\u2111','imath':'\u0131','imof':'\u22B7','imped':'\u01B5','Implies':'\u21D2','in':'\u2208','incare':'\u2105','infin':'\u221E','infintie':'\u29DD','inodot':'\u0131','int':'\u222B','Int':'\u222C','intcal':'\u22BA','integers':'\u2124','Integral':'\u222B','intercal':'\u22BA','Intersection':'\u22C2','intlarhk':'\u2A17','intprod':'\u2A3C','InvisibleComma':'\u2063','InvisibleTimes':'\u2062','iocy':'\u0451','IOcy':'\u0401','iogon':'\u012F','Iogon':'\u012E','iopf':'\uD835\uDD5A','Iopf':'\uD835\uDD40','iota':'\u03B9','Iota':'\u0399','iprod':'\u2A3C','iquest':'\xBF','iscr':'\uD835\uDCBE','Iscr':'\u2110','isin':'\u2208','isindot':'\u22F5','isinE':'\u22F9','isins':'\u22F4','isinsv':'\u22F3','isinv':'\u2208','it':'\u2062','itilde':'\u0129','Itilde':'\u0128','iukcy':'\u0456','Iukcy':'\u0406','iuml':'\xEF','Iuml':'\xCF','jcirc':'\u0135','Jcirc':'\u0134','jcy':'\u0439','Jcy':'\u0419','jfr':'\uD835\uDD27','Jfr':'\uD835\uDD0D','jmath':'\u0237','jopf':'\uD835\uDD5B','Jopf':'\uD835\uDD41','jscr':'\uD835\uDCBF','Jscr':'\uD835\uDCA5','jsercy':'\u0458','Jsercy':'\u0408','jukcy':'\u0454','Jukcy':'\u0404','kappa':'\u03BA','Kappa':'\u039A','kappav':'\u03F0','kcedil':'\u0137','Kcedil':'\u0136','kcy':'\u043A','Kcy':'\u041A','kfr':'\uD835\uDD28','Kfr':'\uD835\uDD0E','kgreen':'\u0138','khcy':'\u0445','KHcy':'\u0425','kjcy':'\u045C','KJcy':'\u040C','kopf':'\uD835\uDD5C','Kopf':'\uD835\uDD42','kscr':'\uD835\uDCC0','Kscr':'\uD835\uDCA6','lAarr':'\u21DA','lacute':'\u013A','Lacute':'\u0139','laemptyv':'\u29B4','lagran':'\u2112','lambda':'\u03BB','Lambda':'\u039B','lang':'\u27E8','Lang':'\u27EA','langd':'\u2991','langle':'\u27E8','lap':'\u2A85','Laplacetrf':'\u2112','laquo':'\xAB','larr':'\u2190','lArr':'\u21D0','Larr':'\u219E','larrb':'\u21E4','larrbfs':'\u291F','larrfs':'\u291D','larrhk':'\u21A9','larrlp':'\u21AB','larrpl':'\u2939','larrsim':'\u2973','larrtl':'\u21A2','lat':'\u2AAB','latail':'\u2919','lAtail':'\u291B','late':'\u2AAD','lates':'\u2AAD\uFE00','lbarr':'\u290C','lBarr':'\u290E','lbbrk':'\u2772','lbrace':'{','lbrack':'[','lbrke':'\u298B','lbrksld':'\u298F','lbrkslu':'\u298D','lcaron':'\u013E','Lcaron':'\u013D','lcedil':'\u013C','Lcedil':'\u013B','lceil':'\u2308','lcub':'{','lcy':'\u043B','Lcy':'\u041B','ldca':'\u2936','ldquo':'\u201C','ldquor':'\u201E','ldrdhar':'\u2967','ldrushar':'\u294B','ldsh':'\u21B2','le':'\u2264','lE':'\u2266','LeftAngleBracket':'\u27E8','leftarrow':'\u2190','Leftarrow':'\u21D0','LeftArrow':'\u2190','LeftArrowBar':'\u21E4','LeftArrowRightArrow':'\u21C6','leftarrowtail':'\u21A2','LeftCeiling':'\u2308','LeftDoubleBracket':'\u27E6','LeftDownTeeVector':'\u2961','LeftDownVector':'\u21C3','LeftDownVectorBar':'\u2959','LeftFloor':'\u230A','leftharpoondown':'\u21BD','leftharpoonup':'\u21BC','leftleftarrows':'\u21C7','leftrightarrow':'\u2194','Leftrightarrow':'\u21D4','LeftRightArrow':'\u2194','leftrightarrows':'\u21C6','leftrightharpoons':'\u21CB','leftrightsquigarrow':'\u21AD','LeftRightVector':'\u294E','LeftTee':'\u22A3','LeftTeeArrow':'\u21A4','LeftTeeVector':'\u295A','leftthreetimes':'\u22CB','LeftTriangle':'\u22B2','LeftTriangleBar':'\u29CF','LeftTriangleEqual':'\u22B4','LeftUpDownVector':'\u2951','LeftUpTeeVector':'\u2960','LeftUpVector':'\u21BF','LeftUpVectorBar':'\u2958','LeftVector':'\u21BC','LeftVectorBar':'\u2952','leg':'\u22DA','lEg':'\u2A8B','leq':'\u2264','leqq':'\u2266','leqslant':'\u2A7D','les':'\u2A7D','lescc':'\u2AA8','lesdot':'\u2A7F','lesdoto':'\u2A81','lesdotor':'\u2A83','lesg':'\u22DA\uFE00','lesges':'\u2A93','lessapprox':'\u2A85','lessdot':'\u22D6','lesseqgtr':'\u22DA','lesseqqgtr':'\u2A8B','LessEqualGreater':'\u22DA','LessFullEqual':'\u2266','LessGreater':'\u2276','lessgtr':'\u2276','LessLess':'\u2AA1','lesssim':'\u2272','LessSlantEqual':'\u2A7D','LessTilde':'\u2272','lfisht':'\u297C','lfloor':'\u230A','lfr':'\uD835\uDD29','Lfr':'\uD835\uDD0F','lg':'\u2276','lgE':'\u2A91','lHar':'\u2962','lhard':'\u21BD','lharu':'\u21BC','lharul':'\u296A','lhblk':'\u2584','ljcy':'\u0459','LJcy':'\u0409','ll':'\u226A','Ll':'\u22D8','llarr':'\u21C7','llcorner':'\u231E','Lleftarrow':'\u21DA','llhard':'\u296B','lltri':'\u25FA','lmidot':'\u0140','Lmidot':'\u013F','lmoust':'\u23B0','lmoustache':'\u23B0','lnap':'\u2A89','lnapprox':'\u2A89','lne':'\u2A87','lnE':'\u2268','lneq':'\u2A87','lneqq':'\u2268','lnsim':'\u22E6','loang':'\u27EC','loarr':'\u21FD','lobrk':'\u27E6','longleftarrow':'\u27F5','Longleftarrow':'\u27F8','LongLeftArrow':'\u27F5','longleftrightarrow':'\u27F7','Longleftrightarrow':'\u27FA','LongLeftRightArrow':'\u27F7','longmapsto':'\u27FC','longrightarrow':'\u27F6','Longrightarrow':'\u27F9','LongRightArrow':'\u27F6','looparrowleft':'\u21AB','looparrowright':'\u21AC','lopar':'\u2985','lopf':'\uD835\uDD5D','Lopf':'\uD835\uDD43','loplus':'\u2A2D','lotimes':'\u2A34','lowast':'\u2217','lowbar':'_','LowerLeftArrow':'\u2199','LowerRightArrow':'\u2198','loz':'\u25CA','lozenge':'\u25CA','lozf':'\u29EB','lpar':'(','lparlt':'\u2993','lrarr':'\u21C6','lrcorner':'\u231F','lrhar':'\u21CB','lrhard':'\u296D','lrm':'\u200E','lrtri':'\u22BF','lsaquo':'\u2039','lscr':'\uD835\uDCC1','Lscr':'\u2112','lsh':'\u21B0','Lsh':'\u21B0','lsim':'\u2272','lsime':'\u2A8D','lsimg':'\u2A8F','lsqb':'[','lsquo':'\u2018','lsquor':'\u201A','lstrok':'\u0142','Lstrok':'\u0141','lt':'<','Lt':'\u226A','LT':'<','ltcc':'\u2AA6','ltcir':'\u2A79','ltdot':'\u22D6','lthree':'\u22CB','ltimes':'\u22C9','ltlarr':'\u2976','ltquest':'\u2A7B','ltri':'\u25C3','ltrie':'\u22B4','ltrif':'\u25C2','ltrPar':'\u2996','lurdshar':'\u294A','luruhar':'\u2966','lvertneqq':'\u2268\uFE00','lvnE':'\u2268\uFE00','macr':'\xAF','male':'\u2642','malt':'\u2720','maltese':'\u2720','map':'\u21A6','Map':'\u2905','mapsto':'\u21A6','mapstodown':'\u21A7','mapstoleft':'\u21A4','mapstoup':'\u21A5','marker':'\u25AE','mcomma':'\u2A29','mcy':'\u043C','Mcy':'\u041C','mdash':'\u2014','mDDot':'\u223A','measuredangle':'\u2221','MediumSpace':'\u205F','Mellintrf':'\u2133','mfr':'\uD835\uDD2A','Mfr':'\uD835\uDD10','mho':'\u2127','micro':'\xB5','mid':'\u2223','midast':'*','midcir':'\u2AF0','middot':'\xB7','minus':'\u2212','minusb':'\u229F','minusd':'\u2238','minusdu':'\u2A2A','MinusPlus':'\u2213','mlcp':'\u2ADB','mldr':'\u2026','mnplus':'\u2213','models':'\u22A7','mopf':'\uD835\uDD5E','Mopf':'\uD835\uDD44','mp':'\u2213','mscr':'\uD835\uDCC2','Mscr':'\u2133','mstpos':'\u223E','mu':'\u03BC','Mu':'\u039C','multimap':'\u22B8','mumap':'\u22B8','nabla':'\u2207','nacute':'\u0144','Nacute':'\u0143','nang':'\u2220\u20D2','nap':'\u2249','napE':'\u2A70\u0338','napid':'\u224B\u0338','napos':'\u0149','napprox':'\u2249','natur':'\u266E','natural':'\u266E','naturals':'\u2115','nbsp':'\xA0','nbump':'\u224E\u0338','nbumpe':'\u224F\u0338','ncap':'\u2A43','ncaron':'\u0148','Ncaron':'\u0147','ncedil':'\u0146','Ncedil':'\u0145','ncong':'\u2247','ncongdot':'\u2A6D\u0338','ncup':'\u2A42','ncy':'\u043D','Ncy':'\u041D','ndash':'\u2013','ne':'\u2260','nearhk':'\u2924','nearr':'\u2197','neArr':'\u21D7','nearrow':'\u2197','nedot':'\u2250\u0338','NegativeMediumSpace':'\u200B','NegativeThickSpace':'\u200B','NegativeThinSpace':'\u200B','NegativeVeryThinSpace':'\u200B','nequiv':'\u2262','nesear':'\u2928','nesim':'\u2242\u0338','NestedGreaterGreater':'\u226B','NestedLessLess':'\u226A','NewLine':'\n','nexist':'\u2204','nexists':'\u2204','nfr':'\uD835\uDD2B','Nfr':'\uD835\uDD11','nge':'\u2271','ngE':'\u2267\u0338','ngeq':'\u2271','ngeqq':'\u2267\u0338','ngeqslant':'\u2A7E\u0338','nges':'\u2A7E\u0338','nGg':'\u22D9\u0338','ngsim':'\u2275','ngt':'\u226F','nGt':'\u226B\u20D2','ngtr':'\u226F','nGtv':'\u226B\u0338','nharr':'\u21AE','nhArr':'\u21CE','nhpar':'\u2AF2','ni':'\u220B','nis':'\u22FC','nisd':'\u22FA','niv':'\u220B','njcy':'\u045A','NJcy':'\u040A','nlarr':'\u219A','nlArr':'\u21CD','nldr':'\u2025','nle':'\u2270','nlE':'\u2266\u0338','nleftarrow':'\u219A','nLeftarrow':'\u21CD','nleftrightarrow':'\u21AE','nLeftrightarrow':'\u21CE','nleq':'\u2270','nleqq':'\u2266\u0338','nleqslant':'\u2A7D\u0338','nles':'\u2A7D\u0338','nless':'\u226E','nLl':'\u22D8\u0338','nlsim':'\u2274','nlt':'\u226E','nLt':'\u226A\u20D2','nltri':'\u22EA','nltrie':'\u22EC','nLtv':'\u226A\u0338','nmid':'\u2224','NoBreak':'\u2060','NonBreakingSpace':'\xA0','nopf':'\uD835\uDD5F','Nopf':'\u2115','not':'\xAC','Not':'\u2AEC','NotCongruent':'\u2262','NotCupCap':'\u226D','NotDoubleVerticalBar':'\u2226','NotElement':'\u2209','NotEqual':'\u2260','NotEqualTilde':'\u2242\u0338','NotExists':'\u2204','NotGreater':'\u226F','NotGreaterEqual':'\u2271','NotGreaterFullEqual':'\u2267\u0338','NotGreaterGreater':'\u226B\u0338','NotGreaterLess':'\u2279','NotGreaterSlantEqual':'\u2A7E\u0338','NotGreaterTilde':'\u2275','NotHumpDownHump':'\u224E\u0338','NotHumpEqual':'\u224F\u0338','notin':'\u2209','notindot':'\u22F5\u0338','notinE':'\u22F9\u0338','notinva':'\u2209','notinvb':'\u22F7','notinvc':'\u22F6','NotLeftTriangle':'\u22EA','NotLeftTriangleBar':'\u29CF\u0338','NotLeftTriangleEqual':'\u22EC','NotLess':'\u226E','NotLessEqual':'\u2270','NotLessGreater':'\u2278','NotLessLess':'\u226A\u0338','NotLessSlantEqual':'\u2A7D\u0338','NotLessTilde':'\u2274','NotNestedGreaterGreater':'\u2AA2\u0338','NotNestedLessLess':'\u2AA1\u0338','notni':'\u220C','notniva':'\u220C','notnivb':'\u22FE','notnivc':'\u22FD','NotPrecedes':'\u2280','NotPrecedesEqual':'\u2AAF\u0338','NotPrecedesSlantEqual':'\u22E0','NotReverseElement':'\u220C','NotRightTriangle':'\u22EB','NotRightTriangleBar':'\u29D0\u0338','NotRightTriangleEqual':'\u22ED','NotSquareSubset':'\u228F\u0338','NotSquareSubsetEqual':'\u22E2','NotSquareSuperset':'\u2290\u0338','NotSquareSupersetEqual':'\u22E3','NotSubset':'\u2282\u20D2','NotSubsetEqual':'\u2288','NotSucceeds':'\u2281','NotSucceedsEqual':'\u2AB0\u0338','NotSucceedsSlantEqual':'\u22E1','NotSucceedsTilde':'\u227F\u0338','NotSuperset':'\u2283\u20D2','NotSupersetEqual':'\u2289','NotTilde':'\u2241','NotTildeEqual':'\u2244','NotTildeFullEqual':'\u2247','NotTildeTilde':'\u2249','NotVerticalBar':'\u2224','npar':'\u2226','nparallel':'\u2226','nparsl':'\u2AFD\u20E5','npart':'\u2202\u0338','npolint':'\u2A14','npr':'\u2280','nprcue':'\u22E0','npre':'\u2AAF\u0338','nprec':'\u2280','npreceq':'\u2AAF\u0338','nrarr':'\u219B','nrArr':'\u21CF','nrarrc':'\u2933\u0338','nrarrw':'\u219D\u0338','nrightarrow':'\u219B','nRightarrow':'\u21CF','nrtri':'\u22EB','nrtrie':'\u22ED','nsc':'\u2281','nsccue':'\u22E1','nsce':'\u2AB0\u0338','nscr':'\uD835\uDCC3','Nscr':'\uD835\uDCA9','nshortmid':'\u2224','nshortparallel':'\u2226','nsim':'\u2241','nsime':'\u2244','nsimeq':'\u2244','nsmid':'\u2224','nspar':'\u2226','nsqsube':'\u22E2','nsqsupe':'\u22E3','nsub':'\u2284','nsube':'\u2288','nsubE':'\u2AC5\u0338','nsubset':'\u2282\u20D2','nsubseteq':'\u2288','nsubseteqq':'\u2AC5\u0338','nsucc':'\u2281','nsucceq':'\u2AB0\u0338','nsup':'\u2285','nsupe':'\u2289','nsupE':'\u2AC6\u0338','nsupset':'\u2283\u20D2','nsupseteq':'\u2289','nsupseteqq':'\u2AC6\u0338','ntgl':'\u2279','ntilde':'\xF1','Ntilde':'\xD1','ntlg':'\u2278','ntriangleleft':'\u22EA','ntrianglelefteq':'\u22EC','ntriangleright':'\u22EB','ntrianglerighteq':'\u22ED','nu':'\u03BD','Nu':'\u039D','num':'#','numero':'\u2116','numsp':'\u2007','nvap':'\u224D\u20D2','nvdash':'\u22AC','nvDash':'\u22AD','nVdash':'\u22AE','nVDash':'\u22AF','nvge':'\u2265\u20D2','nvgt':'>\u20D2','nvHarr':'\u2904','nvinfin':'\u29DE','nvlArr':'\u2902','nvle':'\u2264\u20D2','nvlt':'<\u20D2','nvltrie':'\u22B4\u20D2','nvrArr':'\u2903','nvrtrie':'\u22B5\u20D2','nvsim':'\u223C\u20D2','nwarhk':'\u2923','nwarr':'\u2196','nwArr':'\u21D6','nwarrow':'\u2196','nwnear':'\u2927','oacute':'\xF3','Oacute':'\xD3','oast':'\u229B','ocir':'\u229A','ocirc':'\xF4','Ocirc':'\xD4','ocy':'\u043E','Ocy':'\u041E','odash':'\u229D','odblac':'\u0151','Odblac':'\u0150','odiv':'\u2A38','odot':'\u2299','odsold':'\u29BC','oelig':'\u0153','OElig':'\u0152','ofcir':'\u29BF','ofr':'\uD835\uDD2C','Ofr':'\uD835\uDD12','ogon':'\u02DB','ograve':'\xF2','Ograve':'\xD2','ogt':'\u29C1','ohbar':'\u29B5','ohm':'\u03A9','oint':'\u222E','olarr':'\u21BA','olcir':'\u29BE','olcross':'\u29BB','oline':'\u203E','olt':'\u29C0','omacr':'\u014D','Omacr':'\u014C','omega':'\u03C9','Omega':'\u03A9','omicron':'\u03BF','Omicron':'\u039F','omid':'\u29B6','ominus':'\u2296','oopf':'\uD835\uDD60','Oopf':'\uD835\uDD46','opar':'\u29B7','OpenCurlyDoubleQuote':'\u201C','OpenCurlyQuote':'\u2018','operp':'\u29B9','oplus':'\u2295','or':'\u2228','Or':'\u2A54','orarr':'\u21BB','ord':'\u2A5D','order':'\u2134','orderof':'\u2134','ordf':'\xAA','ordm':'\xBA','origof':'\u22B6','oror':'\u2A56','orslope':'\u2A57','orv':'\u2A5B','oS':'\u24C8','oscr':'\u2134','Oscr':'\uD835\uDCAA','oslash':'\xF8','Oslash':'\xD8','osol':'\u2298','otilde':'\xF5','Otilde':'\xD5','otimes':'\u2297','Otimes':'\u2A37','otimesas':'\u2A36','ouml':'\xF6','Ouml':'\xD6','ovbar':'\u233D','OverBar':'\u203E','OverBrace':'\u23DE','OverBracket':'\u23B4','OverParenthesis':'\u23DC','par':'\u2225','para':'\xB6','parallel':'\u2225','parsim':'\u2AF3','parsl':'\u2AFD','part':'\u2202','PartialD':'\u2202','pcy':'\u043F','Pcy':'\u041F','percnt':'%','period':'.','permil':'\u2030','perp':'\u22A5','pertenk':'\u2031','pfr':'\uD835\uDD2D','Pfr':'\uD835\uDD13','phi':'\u03C6','Phi':'\u03A6','phiv':'\u03D5','phmmat':'\u2133','phone':'\u260E','pi':'\u03C0','Pi':'\u03A0','pitchfork':'\u22D4','piv':'\u03D6','planck':'\u210F','planckh':'\u210E','plankv':'\u210F','plus':'+','plusacir':'\u2A23','plusb':'\u229E','pluscir':'\u2A22','plusdo':'\u2214','plusdu':'\u2A25','pluse':'\u2A72','PlusMinus':'\xB1','plusmn':'\xB1','plussim':'\u2A26','plustwo':'\u2A27','pm':'\xB1','Poincareplane':'\u210C','pointint':'\u2A15','popf':'\uD835\uDD61','Popf':'\u2119','pound':'\xA3','pr':'\u227A','Pr':'\u2ABB','prap':'\u2AB7','prcue':'\u227C','pre':'\u2AAF','prE':'\u2AB3','prec':'\u227A','precapprox':'\u2AB7','preccurlyeq':'\u227C','Precedes':'\u227A','PrecedesEqual':'\u2AAF','PrecedesSlantEqual':'\u227C','PrecedesTilde':'\u227E','preceq':'\u2AAF','precnapprox':'\u2AB9','precneqq':'\u2AB5','precnsim':'\u22E8','precsim':'\u227E','prime':'\u2032','Prime':'\u2033','primes':'\u2119','prnap':'\u2AB9','prnE':'\u2AB5','prnsim':'\u22E8','prod':'\u220F','Product':'\u220F','profalar':'\u232E','profline':'\u2312','profsurf':'\u2313','prop':'\u221D','Proportion':'\u2237','Proportional':'\u221D','propto':'\u221D','prsim':'\u227E','prurel':'\u22B0','pscr':'\uD835\uDCC5','Pscr':'\uD835\uDCAB','psi':'\u03C8','Psi':'\u03A8','puncsp':'\u2008','qfr':'\uD835\uDD2E','Qfr':'\uD835\uDD14','qint':'\u2A0C','qopf':'\uD835\uDD62','Qopf':'\u211A','qprime':'\u2057','qscr':'\uD835\uDCC6','Qscr':'\uD835\uDCAC','quaternions':'\u210D','quatint':'\u2A16','quest':'?','questeq':'\u225F','quot':'"','QUOT':'"','rAarr':'\u21DB','race':'\u223D\u0331','racute':'\u0155','Racute':'\u0154','radic':'\u221A','raemptyv':'\u29B3','rang':'\u27E9','Rang':'\u27EB','rangd':'\u2992','range':'\u29A5','rangle':'\u27E9','raquo':'\xBB','rarr':'\u2192','rArr':'\u21D2','Rarr':'\u21A0','rarrap':'\u2975','rarrb':'\u21E5','rarrbfs':'\u2920','rarrc':'\u2933','rarrfs':'\u291E','rarrhk':'\u21AA','rarrlp':'\u21AC','rarrpl':'\u2945','rarrsim':'\u2974','rarrtl':'\u21A3','Rarrtl':'\u2916','rarrw':'\u219D','ratail':'\u291A','rAtail':'\u291C','ratio':'\u2236','rationals':'\u211A','rbarr':'\u290D','rBarr':'\u290F','RBarr':'\u2910','rbbrk':'\u2773','rbrace':'}','rbrack':']','rbrke':'\u298C','rbrksld':'\u298E','rbrkslu':'\u2990','rcaron':'\u0159','Rcaron':'\u0158','rcedil':'\u0157','Rcedil':'\u0156','rceil':'\u2309','rcub':'}','rcy':'\u0440','Rcy':'\u0420','rdca':'\u2937','rdldhar':'\u2969','rdquo':'\u201D','rdquor':'\u201D','rdsh':'\u21B3','Re':'\u211C','real':'\u211C','realine':'\u211B','realpart':'\u211C','reals':'\u211D','rect':'\u25AD','reg':'\xAE','REG':'\xAE','ReverseElement':'\u220B','ReverseEquilibrium':'\u21CB','ReverseUpEquilibrium':'\u296F','rfisht':'\u297D','rfloor':'\u230B','rfr':'\uD835\uDD2F','Rfr':'\u211C','rHar':'\u2964','rhard':'\u21C1','rharu':'\u21C0','rharul':'\u296C','rho':'\u03C1','Rho':'\u03A1','rhov':'\u03F1','RightAngleBracket':'\u27E9','rightarrow':'\u2192','Rightarrow':'\u21D2','RightArrow':'\u2192','RightArrowBar':'\u21E5','RightArrowLeftArrow':'\u21C4','rightarrowtail':'\u21A3','RightCeiling':'\u2309','RightDoubleBracket':'\u27E7','RightDownTeeVector':'\u295D','RightDownVector':'\u21C2','RightDownVectorBar':'\u2955','RightFloor':'\u230B','rightharpoondown':'\u21C1','rightharpoonup':'\u21C0','rightleftarrows':'\u21C4','rightleftharpoons':'\u21CC','rightrightarrows':'\u21C9','rightsquigarrow':'\u219D','RightTee':'\u22A2','RightTeeArrow':'\u21A6','RightTeeVector':'\u295B','rightthreetimes':'\u22CC','RightTriangle':'\u22B3','RightTriangleBar':'\u29D0','RightTriangleEqual':'\u22B5','RightUpDownVector':'\u294F','RightUpTeeVector':'\u295C','RightUpVector':'\u21BE','RightUpVectorBar':'\u2954','RightVector':'\u21C0','RightVectorBar':'\u2953','ring':'\u02DA','risingdotseq':'\u2253','rlarr':'\u21C4','rlhar':'\u21CC','rlm':'\u200F','rmoust':'\u23B1','rmoustache':'\u23B1','rnmid':'\u2AEE','roang':'\u27ED','roarr':'\u21FE','robrk':'\u27E7','ropar':'\u2986','ropf':'\uD835\uDD63','Ropf':'\u211D','roplus':'\u2A2E','rotimes':'\u2A35','RoundImplies':'\u2970','rpar':')','rpargt':'\u2994','rppolint':'\u2A12','rrarr':'\u21C9','Rrightarrow':'\u21DB','rsaquo':'\u203A','rscr':'\uD835\uDCC7','Rscr':'\u211B','rsh':'\u21B1','Rsh':'\u21B1','rsqb':']','rsquo':'\u2019','rsquor':'\u2019','rthree':'\u22CC','rtimes':'\u22CA','rtri':'\u25B9','rtrie':'\u22B5','rtrif':'\u25B8','rtriltri':'\u29CE','RuleDelayed':'\u29F4','ruluhar':'\u2968','rx':'\u211E','sacute':'\u015B','Sacute':'\u015A','sbquo':'\u201A','sc':'\u227B','Sc':'\u2ABC','scap':'\u2AB8','scaron':'\u0161','Scaron':'\u0160','sccue':'\u227D','sce':'\u2AB0','scE':'\u2AB4','scedil':'\u015F','Scedil':'\u015E','scirc':'\u015D','Scirc':'\u015C','scnap':'\u2ABA','scnE':'\u2AB6','scnsim':'\u22E9','scpolint':'\u2A13','scsim':'\u227F','scy':'\u0441','Scy':'\u0421','sdot':'\u22C5','sdotb':'\u22A1','sdote':'\u2A66','searhk':'\u2925','searr':'\u2198','seArr':'\u21D8','searrow':'\u2198','sect':'\xA7','semi':';','seswar':'\u2929','setminus':'\u2216','setmn':'\u2216','sext':'\u2736','sfr':'\uD835\uDD30','Sfr':'\uD835\uDD16','sfrown':'\u2322','sharp':'\u266F','shchcy':'\u0449','SHCHcy':'\u0429','shcy':'\u0448','SHcy':'\u0428','ShortDownArrow':'\u2193','ShortLeftArrow':'\u2190','shortmid':'\u2223','shortparallel':'\u2225','ShortRightArrow':'\u2192','ShortUpArrow':'\u2191','shy':'\xAD','sigma':'\u03C3','Sigma':'\u03A3','sigmaf':'\u03C2','sigmav':'\u03C2','sim':'\u223C','simdot':'\u2A6A','sime':'\u2243','simeq':'\u2243','simg':'\u2A9E','simgE':'\u2AA0','siml':'\u2A9D','simlE':'\u2A9F','simne':'\u2246','simplus':'\u2A24','simrarr':'\u2972','slarr':'\u2190','SmallCircle':'\u2218','smallsetminus':'\u2216','smashp':'\u2A33','smeparsl':'\u29E4','smid':'\u2223','smile':'\u2323','smt':'\u2AAA','smte':'\u2AAC','smtes':'\u2AAC\uFE00','softcy':'\u044C','SOFTcy':'\u042C','sol':'/','solb':'\u29C4','solbar':'\u233F','sopf':'\uD835\uDD64','Sopf':'\uD835\uDD4A','spades':'\u2660','spadesuit':'\u2660','spar':'\u2225','sqcap':'\u2293','sqcaps':'\u2293\uFE00','sqcup':'\u2294','sqcups':'\u2294\uFE00','Sqrt':'\u221A','sqsub':'\u228F','sqsube':'\u2291','sqsubset':'\u228F','sqsubseteq':'\u2291','sqsup':'\u2290','sqsupe':'\u2292','sqsupset':'\u2290','sqsupseteq':'\u2292','squ':'\u25A1','square':'\u25A1','Square':'\u25A1','SquareIntersection':'\u2293','SquareSubset':'\u228F','SquareSubsetEqual':'\u2291','SquareSuperset':'\u2290','SquareSupersetEqual':'\u2292','SquareUnion':'\u2294','squarf':'\u25AA','squf':'\u25AA','srarr':'\u2192','sscr':'\uD835\uDCC8','Sscr':'\uD835\uDCAE','ssetmn':'\u2216','ssmile':'\u2323','sstarf':'\u22C6','star':'\u2606','Star':'\u22C6','starf':'\u2605','straightepsilon':'\u03F5','straightphi':'\u03D5','strns':'\xAF','sub':'\u2282','Sub':'\u22D0','subdot':'\u2ABD','sube':'\u2286','subE':'\u2AC5','subedot':'\u2AC3','submult':'\u2AC1','subne':'\u228A','subnE':'\u2ACB','subplus':'\u2ABF','subrarr':'\u2979','subset':'\u2282','Subset':'\u22D0','subseteq':'\u2286','subseteqq':'\u2AC5','SubsetEqual':'\u2286','subsetneq':'\u228A','subsetneqq':'\u2ACB','subsim':'\u2AC7','subsub':'\u2AD5','subsup':'\u2AD3','succ':'\u227B','succapprox':'\u2AB8','succcurlyeq':'\u227D','Succeeds':'\u227B','SucceedsEqual':'\u2AB0','SucceedsSlantEqual':'\u227D','SucceedsTilde':'\u227F','succeq':'\u2AB0','succnapprox':'\u2ABA','succneqq':'\u2AB6','succnsim':'\u22E9','succsim':'\u227F','SuchThat':'\u220B','sum':'\u2211','Sum':'\u2211','sung':'\u266A','sup':'\u2283','Sup':'\u22D1','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','supdot':'\u2ABE','supdsub':'\u2AD8','supe':'\u2287','supE':'\u2AC6','supedot':'\u2AC4','Superset':'\u2283','SupersetEqual':'\u2287','suphsol':'\u27C9','suphsub':'\u2AD7','suplarr':'\u297B','supmult':'\u2AC2','supne':'\u228B','supnE':'\u2ACC','supplus':'\u2AC0','supset':'\u2283','Supset':'\u22D1','supseteq':'\u2287','supseteqq':'\u2AC6','supsetneq':'\u228B','supsetneqq':'\u2ACC','supsim':'\u2AC8','supsub':'\u2AD4','supsup':'\u2AD6','swarhk':'\u2926','swarr':'\u2199','swArr':'\u21D9','swarrow':'\u2199','swnwar':'\u292A','szlig':'\xDF','Tab':'\t','target':'\u2316','tau':'\u03C4','Tau':'\u03A4','tbrk':'\u23B4','tcaron':'\u0165','Tcaron':'\u0164','tcedil':'\u0163','Tcedil':'\u0162','tcy':'\u0442','Tcy':'\u0422','tdot':'\u20DB','telrec':'\u2315','tfr':'\uD835\uDD31','Tfr':'\uD835\uDD17','there4':'\u2234','therefore':'\u2234','Therefore':'\u2234','theta':'\u03B8','Theta':'\u0398','thetasym':'\u03D1','thetav':'\u03D1','thickapprox':'\u2248','thicksim':'\u223C','ThickSpace':'\u205F\u200A','thinsp':'\u2009','ThinSpace':'\u2009','thkap':'\u2248','thksim':'\u223C','thorn':'\xFE','THORN':'\xDE','tilde':'\u02DC','Tilde':'\u223C','TildeEqual':'\u2243','TildeFullEqual':'\u2245','TildeTilde':'\u2248','times':'\xD7','timesb':'\u22A0','timesbar':'\u2A31','timesd':'\u2A30','tint':'\u222D','toea':'\u2928','top':'\u22A4','topbot':'\u2336','topcir':'\u2AF1','topf':'\uD835\uDD65','Topf':'\uD835\uDD4B','topfork':'\u2ADA','tosa':'\u2929','tprime':'\u2034','trade':'\u2122','TRADE':'\u2122','triangle':'\u25B5','triangledown':'\u25BF','triangleleft':'\u25C3','trianglelefteq':'\u22B4','triangleq':'\u225C','triangleright':'\u25B9','trianglerighteq':'\u22B5','tridot':'\u25EC','trie':'\u225C','triminus':'\u2A3A','TripleDot':'\u20DB','triplus':'\u2A39','trisb':'\u29CD','tritime':'\u2A3B','trpezium':'\u23E2','tscr':'\uD835\uDCC9','Tscr':'\uD835\uDCAF','tscy':'\u0446','TScy':'\u0426','tshcy':'\u045B','TSHcy':'\u040B','tstrok':'\u0167','Tstrok':'\u0166','twixt':'\u226C','twoheadleftarrow':'\u219E','twoheadrightarrow':'\u21A0','uacute':'\xFA','Uacute':'\xDA','uarr':'\u2191','uArr':'\u21D1','Uarr':'\u219F','Uarrocir':'\u2949','ubrcy':'\u045E','Ubrcy':'\u040E','ubreve':'\u016D','Ubreve':'\u016C','ucirc':'\xFB','Ucirc':'\xDB','ucy':'\u0443','Ucy':'\u0423','udarr':'\u21C5','udblac':'\u0171','Udblac':'\u0170','udhar':'\u296E','ufisht':'\u297E','ufr':'\uD835\uDD32','Ufr':'\uD835\uDD18','ugrave':'\xF9','Ugrave':'\xD9','uHar':'\u2963','uharl':'\u21BF','uharr':'\u21BE','uhblk':'\u2580','ulcorn':'\u231C','ulcorner':'\u231C','ulcrop':'\u230F','ultri':'\u25F8','umacr':'\u016B','Umacr':'\u016A','uml':'\xA8','UnderBar':'_','UnderBrace':'\u23DF','UnderBracket':'\u23B5','UnderParenthesis':'\u23DD','Union':'\u22C3','UnionPlus':'\u228E','uogon':'\u0173','Uogon':'\u0172','uopf':'\uD835\uDD66','Uopf':'\uD835\uDD4C','uparrow':'\u2191','Uparrow':'\u21D1','UpArrow':'\u2191','UpArrowBar':'\u2912','UpArrowDownArrow':'\u21C5','updownarrow':'\u2195','Updownarrow':'\u21D5','UpDownArrow':'\u2195','UpEquilibrium':'\u296E','upharpoonleft':'\u21BF','upharpoonright':'\u21BE','uplus':'\u228E','UpperLeftArrow':'\u2196','UpperRightArrow':'\u2197','upsi':'\u03C5','Upsi':'\u03D2','upsih':'\u03D2','upsilon':'\u03C5','Upsilon':'\u03A5','UpTee':'\u22A5','UpTeeArrow':'\u21A5','upuparrows':'\u21C8','urcorn':'\u231D','urcorner':'\u231D','urcrop':'\u230E','uring':'\u016F','Uring':'\u016E','urtri':'\u25F9','uscr':'\uD835\uDCCA','Uscr':'\uD835\uDCB0','utdot':'\u22F0','utilde':'\u0169','Utilde':'\u0168','utri':'\u25B5','utrif':'\u25B4','uuarr':'\u21C8','uuml':'\xFC','Uuml':'\xDC','uwangle':'\u29A7','vangrt':'\u299C','varepsilon':'\u03F5','varkappa':'\u03F0','varnothing':'\u2205','varphi':'\u03D5','varpi':'\u03D6','varpropto':'\u221D','varr':'\u2195','vArr':'\u21D5','varrho':'\u03F1','varsigma':'\u03C2','varsubsetneq':'\u228A\uFE00','varsubsetneqq':'\u2ACB\uFE00','varsupsetneq':'\u228B\uFE00','varsupsetneqq':'\u2ACC\uFE00','vartheta':'\u03D1','vartriangleleft':'\u22B2','vartriangleright':'\u22B3','vBar':'\u2AE8','Vbar':'\u2AEB','vBarv':'\u2AE9','vcy':'\u0432','Vcy':'\u0412','vdash':'\u22A2','vDash':'\u22A8','Vdash':'\u22A9','VDash':'\u22AB','Vdashl':'\u2AE6','vee':'\u2228','Vee':'\u22C1','veebar':'\u22BB','veeeq':'\u225A','vellip':'\u22EE','verbar':'|','Verbar':'\u2016','vert':'|','Vert':'\u2016','VerticalBar':'\u2223','VerticalLine':'|','VerticalSeparator':'\u2758','VerticalTilde':'\u2240','VeryThinSpace':'\u200A','vfr':'\uD835\uDD33','Vfr':'\uD835\uDD19','vltri':'\u22B2','vnsub':'\u2282\u20D2','vnsup':'\u2283\u20D2','vopf':'\uD835\uDD67','Vopf':'\uD835\uDD4D','vprop':'\u221D','vrtri':'\u22B3','vscr':'\uD835\uDCCB','Vscr':'\uD835\uDCB1','vsubne':'\u228A\uFE00','vsubnE':'\u2ACB\uFE00','vsupne':'\u228B\uFE00','vsupnE':'\u2ACC\uFE00','Vvdash':'\u22AA','vzigzag':'\u299A','wcirc':'\u0175','Wcirc':'\u0174','wedbar':'\u2A5F','wedge':'\u2227','Wedge':'\u22C0','wedgeq':'\u2259','weierp':'\u2118','wfr':'\uD835\uDD34','Wfr':'\uD835\uDD1A','wopf':'\uD835\uDD68','Wopf':'\uD835\uDD4E','wp':'\u2118','wr':'\u2240','wreath':'\u2240','wscr':'\uD835\uDCCC','Wscr':'\uD835\uDCB2','xcap':'\u22C2','xcirc':'\u25EF','xcup':'\u22C3','xdtri':'\u25BD','xfr':'\uD835\uDD35','Xfr':'\uD835\uDD1B','xharr':'\u27F7','xhArr':'\u27FA','xi':'\u03BE','Xi':'\u039E','xlarr':'\u27F5','xlArr':'\u27F8','xmap':'\u27FC','xnis':'\u22FB','xodot':'\u2A00','xopf':'\uD835\uDD69','Xopf':'\uD835\uDD4F','xoplus':'\u2A01','xotime':'\u2A02','xrarr':'\u27F6','xrArr':'\u27F9','xscr':'\uD835\uDCCD','Xscr':'\uD835\uDCB3','xsqcup':'\u2A06','xuplus':'\u2A04','xutri':'\u25B3','xvee':'\u22C1','xwedge':'\u22C0','yacute':'\xFD','Yacute':'\xDD','yacy':'\u044F','YAcy':'\u042F','ycirc':'\u0177','Ycirc':'\u0176','ycy':'\u044B','Ycy':'\u042B','yen':'\xA5','yfr':'\uD835\uDD36','Yfr':'\uD835\uDD1C','yicy':'\u0457','YIcy':'\u0407','yopf':'\uD835\uDD6A','Yopf':'\uD835\uDD50','yscr':'\uD835\uDCCE','Yscr':'\uD835\uDCB4','yucy':'\u044E','YUcy':'\u042E','yuml':'\xFF','Yuml':'\u0178','zacute':'\u017A','Zacute':'\u0179','zcaron':'\u017E','Zcaron':'\u017D','zcy':'\u0437','Zcy':'\u0417','zdot':'\u017C','Zdot':'\u017B','zeetrf':'\u2128','ZeroWidthSpace':'\u200B','zeta':'\u03B6','Zeta':'\u0396','zfr':'\uD835\uDD37','Zfr':'\u2128','zhcy':'\u0436','ZHcy':'\u0416','zigrarr':'\u21DD','zopf':'\uD835\uDD6B','Zopf':'\u2124','zscr':'\uD835\uDCCF','Zscr':'\uD835\uDCB5','zwj':'\u200D','zwnj':'\u200C'};
-	var decodeMapLegacy = {'aacute':'\xE1','Aacute':'\xC1','acirc':'\xE2','Acirc':'\xC2','acute':'\xB4','aelig':'\xE6','AElig':'\xC6','agrave':'\xE0','Agrave':'\xC0','amp':'&','AMP':'&','aring':'\xE5','Aring':'\xC5','atilde':'\xE3','Atilde':'\xC3','auml':'\xE4','Auml':'\xC4','brvbar':'\xA6','ccedil':'\xE7','Ccedil':'\xC7','cedil':'\xB8','cent':'\xA2','copy':'\xA9','COPY':'\xA9','curren':'\xA4','deg':'\xB0','divide':'\xF7','eacute':'\xE9','Eacute':'\xC9','ecirc':'\xEA','Ecirc':'\xCA','egrave':'\xE8','Egrave':'\xC8','eth':'\xF0','ETH':'\xD0','euml':'\xEB','Euml':'\xCB','frac12':'\xBD','frac14':'\xBC','frac34':'\xBE','gt':'>','GT':'>','iacute':'\xED','Iacute':'\xCD','icirc':'\xEE','Icirc':'\xCE','iexcl':'\xA1','igrave':'\xEC','Igrave':'\xCC','iquest':'\xBF','iuml':'\xEF','Iuml':'\xCF','laquo':'\xAB','lt':'<','LT':'<','macr':'\xAF','micro':'\xB5','middot':'\xB7','nbsp':'\xA0','not':'\xAC','ntilde':'\xF1','Ntilde':'\xD1','oacute':'\xF3','Oacute':'\xD3','ocirc':'\xF4','Ocirc':'\xD4','ograve':'\xF2','Ograve':'\xD2','ordf':'\xAA','ordm':'\xBA','oslash':'\xF8','Oslash':'\xD8','otilde':'\xF5','Otilde':'\xD5','ouml':'\xF6','Ouml':'\xD6','para':'\xB6','plusmn':'\xB1','pound':'\xA3','quot':'"','QUOT':'"','raquo':'\xBB','reg':'\xAE','REG':'\xAE','sect':'\xA7','shy':'\xAD','sup1':'\xB9','sup2':'\xB2','sup3':'\xB3','szlig':'\xDF','thorn':'\xFE','THORN':'\xDE','times':'\xD7','uacute':'\xFA','Uacute':'\xDA','ucirc':'\xFB','Ucirc':'\xDB','ugrave':'\xF9','Ugrave':'\xD9','uml':'\xA8','uuml':'\xFC','Uuml':'\xDC','yacute':'\xFD','Yacute':'\xDD','yen':'\xA5','yuml':'\xFF'};
-	var decodeMapNumeric = {'0':'\uFFFD','128':'\u20AC','130':'\u201A','131':'\u0192','132':'\u201E','133':'\u2026','134':'\u2020','135':'\u2021','136':'\u02C6','137':'\u2030','138':'\u0160','139':'\u2039','140':'\u0152','142':'\u017D','145':'\u2018','146':'\u2019','147':'\u201C','148':'\u201D','149':'\u2022','150':'\u2013','151':'\u2014','152':'\u02DC','153':'\u2122','154':'\u0161','155':'\u203A','156':'\u0153','158':'\u017E','159':'\u0178'};
-	var invalidReferenceCodePoints = [1,2,3,4,5,6,7,8,11,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,64976,64977,64978,64979,64980,64981,64982,64983,64984,64985,64986,64987,64988,64989,64990,64991,64992,64993,64994,64995,64996,64997,64998,64999,65000,65001,65002,65003,65004,65005,65006,65007,65534,65535,131070,131071,196606,196607,262142,262143,327678,327679,393214,393215,458750,458751,524286,524287,589822,589823,655358,655359,720894,720895,786430,786431,851966,851967,917502,917503,983038,983039,1048574,1048575,1114110,1114111];
-
-	/*--------------------------------------------------------------------------*/
-
-	var stringFromCharCode = String.fromCharCode;
-
-	var object = {};
-	var hasOwnProperty = object.hasOwnProperty;
-	var has = function(object, propertyName) {
-		return hasOwnProperty.call(object, propertyName);
-	};
-
-	var contains = function(array, value) {
-		var index = -1;
-		var length = array.length;
-		while (++index < length) {
-			if (array[index] == value) {
-				return true;
-			}
-		}
-		return false;
-	};
-
-	var merge = function(options, defaults) {
-		if (!options) {
-			return defaults;
-		}
-		var result = {};
-		var key;
-		for (key in defaults) {
-			// A `hasOwnProperty` check is not needed here, since only recognized
-			// option names are used anyway. Any others are ignored.
-			result[key] = has(options, key) ? options[key] : defaults[key];
-		}
-		return result;
-	};
-
-	// Modified version of `ucs2encode`; see https://mths.be/punycode.
-	var codePointToSymbol = function(codePoint, strict) {
-		var output = '';
-		if ((codePoint >= 0xD800 && codePoint <= 0xDFFF) || codePoint > 0x10FFFF) {
-			// See issue #4:
-			// “Otherwise, if the number is in the range 0xD800 to 0xDFFF or is
-			// greater than 0x10FFFF, then this is a parse error. Return a U+FFFD
-			// REPLACEMENT CHARACTER.”
-			if (strict) {
-				parseError('character reference outside the permissible Unicode range');
-			}
-			return '\uFFFD';
-		}
-		if (has(decodeMapNumeric, codePoint)) {
-			if (strict) {
-				parseError('disallowed character reference');
-			}
-			return decodeMapNumeric[codePoint];
-		}
-		if (strict && contains(invalidReferenceCodePoints, codePoint)) {
-			parseError('disallowed character reference');
-		}
-		if (codePoint > 0xFFFF) {
-			codePoint -= 0x10000;
-			output += stringFromCharCode(codePoint >>> 10 & 0x3FF | 0xD800);
-			codePoint = 0xDC00 | codePoint & 0x3FF;
-		}
-		output += stringFromCharCode(codePoint);
-		return output;
-	};
-
-	var hexEscape = function(codePoint) {
-		return '&#x' + codePoint.toString(16).toUpperCase() + ';';
-	};
-
-	var decEscape = function(codePoint) {
-		return '&#' + codePoint + ';';
-	};
-
-	var parseError = function(message) {
-		throw Error('Parse error: ' + message);
-	};
-
-	/*--------------------------------------------------------------------------*/
-
-	var encode = function(string, options) {
-		options = merge(options, encode.options);
-		var strict = options.strict;
-		if (strict && regexInvalidRawCodePoint.test(string)) {
-			parseError('forbidden code point');
-		}
-		var encodeEverything = options.encodeEverything;
-		var useNamedReferences = options.useNamedReferences;
-		var allowUnsafeSymbols = options.allowUnsafeSymbols;
-		var escapeCodePoint = options.decimal ? decEscape : hexEscape;
-
-		var escapeBmpSymbol = function(symbol) {
-			return escapeCodePoint(symbol.charCodeAt(0));
-		};
-
-		if (encodeEverything) {
-			// Encode ASCII symbols.
-			string = string.replace(regexAsciiWhitelist, function(symbol) {
-				// Use named references if requested & possible.
-				if (useNamedReferences && has(encodeMap, symbol)) {
-					return '&' + encodeMap[symbol] + ';';
-				}
-				return escapeBmpSymbol(symbol);
-			});
-			// Shorten a few escapes that represent two symbols, of which at least one
-			// is within the ASCII range.
-			if (useNamedReferences) {
-				string = string
-					.replace(/&gt;\u20D2/g, '&nvgt;')
-					.replace(/&lt;\u20D2/g, '&nvlt;')
-					.replace(/&#x66;&#x6A;/g, '&fjlig;');
-			}
-			// Encode non-ASCII symbols.
-			if (useNamedReferences) {
-				// Encode non-ASCII symbols that can be replaced with a named reference.
-				string = string.replace(regexEncodeNonAscii, function(string) {
-					// Note: there is no need to check `has(encodeMap, string)` here.
-					return '&' + encodeMap[string] + ';';
-				});
-			}
-			// Note: any remaining non-ASCII symbols are handled outside of the `if`.
-		} else if (useNamedReferences) {
-			// Apply named character references.
-			// Encode `<>"'&` using named character references.
-			if (!allowUnsafeSymbols) {
-				string = string.replace(regexEscape, function(string) {
-					return '&' + encodeMap[string] + ';'; // no need to check `has()` here
-				});
-			}
-			// Shorten escapes that represent two symbols, of which at least one is
-			// `<>"'&`.
-			string = string
-				.replace(/&gt;\u20D2/g, '&nvgt;')
-				.replace(/&lt;\u20D2/g, '&nvlt;');
-			// Encode non-ASCII symbols that can be replaced with a named reference.
-			string = string.replace(regexEncodeNonAscii, function(string) {
-				// Note: there is no need to check `has(encodeMap, string)` here.
-				return '&' + encodeMap[string] + ';';
-			});
-		} else if (!allowUnsafeSymbols) {
-			// Encode `<>"'&` using hexadecimal escapes, now that they’re not handled
-			// using named character references.
-			string = string.replace(regexEscape, escapeBmpSymbol);
-		}
-		return string
-			// Encode astral symbols.
-			.replace(regexAstralSymbols, function($0) {
-				// https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
-				var high = $0.charCodeAt(0);
-				var low = $0.charCodeAt(1);
-				var codePoint = (high - 0xD800) * 0x400 + low - 0xDC00 + 0x10000;
-				return escapeCodePoint(codePoint);
-			})
-			// Encode any remaining BMP symbols that are not printable ASCII symbols
-			// using a hexadecimal escape.
-			.replace(regexBmpWhitelist, escapeBmpSymbol);
-	};
-	// Expose default options (so they can be overridden globally).
-	encode.options = {
-		'allowUnsafeSymbols': false,
-		'encodeEverything': false,
-		'strict': false,
-		'useNamedReferences': false,
-		'decimal' : false
-	};
-
-	var decode = function(html, options) {
-		options = merge(options, decode.options);
-		var strict = options.strict;
-		if (strict && regexInvalidEntity.test(html)) {
-			parseError('malformed character reference');
-		}
-		return html.replace(regexDecode, function($0, $1, $2, $3, $4, $5, $6, $7) {
-			var codePoint;
-			var semicolon;
-			var decDigits;
-			var hexDigits;
-			var reference;
-			var next;
-			if ($1) {
-				// Decode decimal escapes, e.g. `&#119558;`.
-				decDigits = $1;
-				semicolon = $2;
-				if (strict && !semicolon) {
-					parseError('character reference was not terminated by a semicolon');
-				}
-				codePoint = parseInt(decDigits, 10);
-				return codePointToSymbol(codePoint, strict);
-			}
-			if ($3) {
-				// Decode hexadecimal escapes, e.g. `&#x1D306;`.
-				hexDigits = $3;
-				semicolon = $4;
-				if (strict && !semicolon) {
-					parseError('character reference was not terminated by a semicolon');
-				}
-				codePoint = parseInt(hexDigits, 16);
-				return codePointToSymbol(codePoint, strict);
-			}
-			if ($5) {
-				// Decode named character references with trailing `;`, e.g. `&copy;`.
-				reference = $5;
-				if (has(decodeMap, reference)) {
-					return decodeMap[reference];
-				} else {
-					// Ambiguous ampersand. https://mths.be/notes/ambiguous-ampersands
-					if (strict) {
-						parseError(
-							'named character reference was not terminated by a semicolon'
-						);
-					}
-					return $0;
-				}
-			}
-			// If we’re still here, it’s a legacy reference for sure. No need for an
-			// extra `if` check.
-			// Decode named character references without trailing `;`, e.g. `&amp`
-			// This is only a parse error if it gets converted to `&`, or if it is
-			// followed by `=` in an attribute context.
-			reference = $6;
-			next = $7;
-			if (next && options.isAttributeValue) {
-				if (strict && next == '=') {
-					parseError('`&` did not start a character reference');
-				}
-				return $0;
-			} else {
-				if (strict) {
-					parseError(
-						'named character reference was not terminated by a semicolon'
-					);
-				}
-				// Note: there is no need to check `has(decodeMapLegacy, reference)`.
-				return decodeMapLegacy[reference] + (next || '');
-			}
-		});
-	};
-	// Expose default options (so they can be overridden globally).
-	decode.options = {
-		'isAttributeValue': false,
-		'strict': false
-	};
-
-	var escape = function(string) {
-		return string.replace(regexEscape, function($0) {
-			// Note: there is no need to check `has(escapeMap, $0)` here.
-			return escapeMap[$0];
-		});
-	};
-
-	/*--------------------------------------------------------------------------*/
-
-	var he = {
-		'version': '1.1.1',
-		'encode': encode,
-		'decode': decode,
-		'escape': escape,
-		'unescape': decode
-	};
-
-	// Some AMD build optimizers, like r.js, check for specific condition patterns
-	// like the following:
-	if (
-		typeof undefined == 'function' &&
-		typeof undefined.amd == 'object' &&
-		undefined.amd
-	) {
-		undefined(function() {
-			return he;
-		});
-	}	else if (freeExports && !freeExports.nodeType) {
-		if (freeModule) { // in Node.js, io.js, or RingoJS v0.8.0+
-			freeModule.exports = he;
-		} else { // in Narwhal or RingoJS v0.7.0-
-			for (var key in he) {
-				has(he, key) && (freeExports[key] = he[key]);
-			}
-		}
-	} else { // in Rhino or a web browser
-		root.he = he;
-	}
-
-}(commonjsGlobal));
-});
-
-/*  */
-
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-      "? " + baseValueExpression + ".trim()" +
-      ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+  var CodegenState = function CodegenState (options) {
+    this.options = options;
+    this.warn = options.warn || baseWarn;
+    this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+    this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+    this.directives = extend(extend({}, baseDirectives), options.directives);
+    var isReservedTag = options.isReservedTag || no;
+    this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+    this.onceId = 0;
+    this.staticRenderFns = [];
+    this.pre = false;
   };
-}
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var res = parseModel(value);
-  if (res.key === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
-  }
-}
-
-/**
- * Parse a v-model expression into a base path and a final key segment.
- * Handles both dot-path and possible square brackets.
- *
- * Possible cases:
- *
- * - test
- * - test[key]
- * - test[test1[key]]
- * - test["a"][key]
- * - xxx.test[a[a].test1[key]]
- * - test.xxx.a["asa"][test1[key]]
- *
- */
-
-var len;
-var str;
-var chr;
-var index;
-var expressionPos;
-var expressionEndPos;
-
-
-
-function parseModel (val) {
-  // Fix https://github.com/vuejs/vue/pull/7730
-  // allow v-model="obj.val " (trailing whitespace)
-  val = val.trim();
-  len = val.length;
-
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    index = val.lastIndexOf('.');
-    if (index > -1) {
-      return {
-        exp: val.slice(0, index),
-        key: '"' + val.slice(index + 1) + '"'
-      }
-    } else {
-      return {
-        exp: val,
-        key: null
-      }
+
+
+
+  function generate (
+    ast,
+    options
+  ) {
+    var state = new CodegenState(options);
+    var code = ast ? genElement(ast, state) : '_c("div")';
+    return {
+      render: ("with(this){return " + code + "}"),
+      staticRenderFns: state.staticRenderFns
     }
   }
 
-  str = val;
-  index = expressionPos = expressionEndPos = 0;
+  function genElement (el, state) {
+    if (el.parent) {
+      el.pre = el.pre || el.parent.pre;
+    }
 
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
+    if (el.staticRoot && !el.staticProcessed) {
+      return genStatic(el, state)
+    } else if (el.once && !el.onceProcessed) {
+      return genOnce(el, state)
+    } else if (el.for && !el.forProcessed) {
+      return genFor(el, state)
+    } else if (el.if && !el.ifProcessed) {
+      return genIf(el, state)
+    } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
+      return genChildren(el, state) || 'void 0'
+    } else if (el.tag === 'slot') {
+      return genSlot(el, state)
+    } else {
+      // component or element
+      var code;
+      if (el.component) {
+        code = genComponent(el.component, el, state);
+      } else {
+        var data;
+        if (!el.plain || (el.pre && state.maybeComponent(el))) {
+          data = genData$2(el, state);
+        }
 
-  return {
-    exp: val.slice(0, expressionPos),
-    key: val.slice(expressionPos + 1, expressionEndPos)
+        var children = el.inlineTemplate ? null : genChildren(el, state, true);
+        code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+      }
+      // module transforms
+      for (var i = 0; i < state.transforms.length; i++) {
+        code = state.transforms[i](el, code);
+      }
+      return code
+    }
   }
-}
 
-function next () {
-  return str.charCodeAt(++index)
-}
-
-function eof () {
-  return index >= len
-}
-
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
+  // hoist static sub-trees out
+  function genStatic (el, state) {
+    el.staticProcessed = true;
+    // Some elements (templates) need to behave differently inside of a v-pre
+    // node.  All pre nodes are static roots, so we can use this as a location to
+    // wrap a state change and reset it upon exiting the pre node.
+    var originalPreState = state.pre;
+    if (el.pre) {
+      state.pre = el.pre;
     }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index;
-      break
+    state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+    state.pre = originalPreState;
+    return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+  }
+
+  // v-once
+  function genOnce (el, state) {
+    el.onceProcessed = true;
+    if (el.if && !el.ifProcessed) {
+      return genIf(el, state)
+    } else if (el.staticInFor) {
+      var key = '';
+      var parent = el.parent;
+      while (parent) {
+        if (parent.for) {
+          key = parent.key;
+          break
+        }
+        parent = parent.parent;
+      }
+      if (!key) {
+        state.warn(
+          "v-once can only be used inside v-for that is keyed. "
+        );
+        return genElement(el, state)
+      }
+      return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+    } else {
+      return genStatic(el, state)
     }
   }
-}
 
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
+  function genIf (
+    el,
+    state,
+    altGen,
+    altEmpty
+  ) {
+    el.ifProcessed = true; // avoid recursion
+    return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
   }
-}
-
-/*  */
 
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
-var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
-var stripParensRE = /^\(|\)$/g;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$1;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
-
-
-function createASTElement (
-  tag,
-  attrs,
-  parent
-) {
-  return {
-    type: 1,
-    tag: tag,
-    attrsList: attrs,
-    attrsMap: makeAttrsMap(attrs),
-    parent: parent,
-    children: []
-  }
-}
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$1 = options.warn || baseWarn;
+  function genIfConditions (
+    conditions,
+    state,
+    altGen,
+    altEmpty
+  ) {
+    if (!conditions.length) {
+      return altEmpty || '_e()'
+    }
 
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
-
-  var stack = [];
-  var preserveWhitespace = options.preserveWhitespace !== false;
-  var root;
-  var currentParent;
-  var inVPre = false;
-  var inPre = false;
-  var warned = false;
-
-  function warnOnce (msg) {
-    if (!warned) {
-      warned = true;
-      warn$1(msg);
-    }
-  }
-
-  function closeElement (element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-    // apply post-transforms
-    for (var i = 0; i < postTransforms.length; i++) {
-      postTransforms[i](element, options);
+    var condition = conditions.shift();
+    if (condition.exp) {
+      return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+    } else {
+      return ("" + (genTernaryExp(condition.block)))
     }
-  }
-
-  parseHTML(template, {
-    warn: warn$1,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-    shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
-
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
 
-      var element = createASTElement(tag, attrs, currentParent);
-      if (ns) {
-        element.ns = ns;
-      }
+    // v-if with v-once should generate code like (a)?_m(0):_m(1)
+    function genTernaryExp (el) {
+      return altGen
+        ? altGen(el, state)
+        : el.once
+          ? genOnce(el, state)
+          : genElement(el, state)
+    }
+  }
 
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        "development" !== 'production' && warn$1(
-          'Templates should only be responsible for mapping the state to the ' +
-          'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
-        );
-      }
+  function genFor (
+    el,
+    state,
+    altGen,
+    altHelper
+  ) {
+    var exp = el.for;
+    var alias = el.alias;
+    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+    if (state.maybeComponent(el) &&
+      el.tag !== 'slot' &&
+      el.tag !== 'template' &&
+      !el.key
+    ) {
+      state.warn(
+        "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+        "v-for should have explicit keys. " +
+        "See https://vuejs.org/guide/list.html#key for more info.",
+        true /* tip */
+      );
+    }
 
-      // apply pre-transforms
-      for (var i = 0; i < preTransforms.length; i++) {
-        element = preTransforms[i](element, options) || element;
-      }
+    el.forProcessed = true; // avoid recursion
+    return (altHelper || '_l') + "((" + exp + ")," +
+      "function(" + alias + iterator1 + iterator2 + "){" +
+        "return " + ((altGen || genElement)(el, state)) +
+      '})'
+  }
 
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
-      }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else if (!element.processed) {
-        // structural directives
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
+  function genData$2 (el, state) {
+    var data = '{';
 
-      function checkRootConstraints (el) {
-        {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
-      }
+    // directives first.
+    // directives may mutate the el's other properties before they are generated.
+    var dirs = genDirectives(el, state);
+    if (dirs) { data += dirs + ','; }
 
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
-      }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
-      } else {
-        closeElement(element);
-      }
-    },
-
-    end: function end () {
-      // remove trailing whitespace
-      var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      closeElement(element);
-    },
-
-    chars: function chars (text) {
-      if (!currentParent) {
-        {
-          if (text === template) {
-            warnOnce(
-              'Component template requires a root element, rather than just text.'
-            );
-          } else if ((text = text.trim())) {
-            warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
-            );
-          }
-        }
-        return
+    // key
+    if (el.key) {
+      data += "key:" + (el.key) + ",";
+    }
+    // ref
+    if (el.ref) {
+      data += "ref:" + (el.ref) + ",";
+    }
+    if (el.refInFor) {
+      data += "refInFor:true,";
+    }
+    // pre
+    if (el.pre) {
+      data += "pre:true,";
+    }
+    // record original tag name for components using "is" attribute
+    if (el.component) {
+      data += "tag:\"" + (el.tag) + "\",";
+    }
+    // module data generation functions
+    for (var i = 0; i < state.dataGenFns.length; i++) {
+      data += state.dataGenFns[i](el);
+    }
+    // attributes
+    if (el.attrs) {
+      data += "attrs:{" + (genProps(el.attrs)) + "},";
+    }
+    // DOM props
+    if (el.props) {
+      data += "domProps:{" + (genProps(el.props)) + "},";
+    }
+    // event handlers
+    if (el.events) {
+      data += (genHandlers(el.events, false)) + ",";
+    }
+    if (el.nativeEvents) {
+      data += (genHandlers(el.nativeEvents, true)) + ",";
+    }
+    // slot target
+    // only for non-scoped slots
+    if (el.slotTarget && !el.slotScope) {
+      data += "slot:" + (el.slotTarget) + ",";
+    }
+    // scoped slots
+    if (el.scopedSlots) {
+      data += (genScopedSlots(el.scopedSlots, state)) + ",";
+    }
+    // component v-model
+    if (el.model) {
+      data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+    }
+    // inline-template
+    if (el.inlineTemplate) {
+      var inlineTemplate = genInlineTemplate(el, state);
+      if (inlineTemplate) {
+        data += inlineTemplate + ",";
       }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE &&
-        currentParent.tag === 'textarea' &&
-        currentParent.attrsMap.placeholder === text
-      ) {
-        return
+    }
+    data = data.replace(/,$/, '') + '}';
+    // v-bind data wrap
+    if (el.wrapData) {
+      data = el.wrapData(data);
+    }
+    // v-on data wrap
+    if (el.wrapListeners) {
+      data = el.wrapListeners(data);
+    }
+    return data
+  }
+
+  function genDirectives (el, state) {
+    var dirs = el.directives;
+    if (!dirs) { return }
+    var res = 'directives:[';
+    var hasRuntime = false;
+    var i, l, dir, needRuntime;
+    for (i = 0, l = dirs.length; i < l; i++) {
+      dir = dirs[i];
+      needRuntime = true;
+      var gen = state.directives[dir.name];
+      if (gen) {
+        // compile-time directive that manipulates AST.
+        // returns true if it also needs a runtime counterpart.
+        needRuntime = !!gen(el, dir, state.warn);
       }
-      var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        var res;
-        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression: res.expression,
-            tokens: res.tokens,
-            text: text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text: text
-          });
-        }
+      if (needRuntime) {
+        hasRuntime = true;
+        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
       }
-    },
-    comment: function comment (text) {
-      currentParent.children.push({
-        type: 3,
-        text: text,
-        isComment: true
-      });
     }
-  });
-  return root
-}
-
-function processPre (el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
+    if (hasRuntime) {
+      return res.slice(0, -1) + ']'
     }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
   }
-}
 
-function processElement (element, options) {
-  processKey(element);
+  function genInlineTemplate (el, state) {
+    var ast = el.children[0];
+    if (el.children.length !== 1 || ast.type !== 1) {
+      state.warn('Inline-template components must have exactly one child element.');
+    }
+    if (ast.type === 1) {
+      var inlineRenderFns = generate(ast, state.options);
+      return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+    }
+  }
 
-  // determine whether this is a plain element after
-  // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
+  function genScopedSlots (
+    slots,
+    state
+  ) {
+    return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+        return genScopedSlot(key, slots[key], state)
+      }).join(',')) + "])")
+  }
 
-  processRef(element);
-  processSlot(element);
-  processComponent(element);
-  for (var i = 0; i < transforms.length; i++) {
-    element = transforms[i](element, options) || element;
+  function genScopedSlot (
+    key,
+    el,
+    state
+  ) {
+    if (el.for && !el.forProcessed) {
+      return genForScopedSlot(key, el, state)
+    }
+    var fn = "function(" + (String(el.slotScope)) + "){" +
+      "return " + (el.tag === 'template'
+        ? el.if
+          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+          : genChildren(el, state) || 'undefined'
+        : genElement(el, state)) + "}";
+    return ("{key:" + key + ",fn:" + fn + "}")
+  }
+
+  function genForScopedSlot (
+    key,
+    el,
+    state
+  ) {
+    var exp = el.for;
+    var alias = el.alias;
+    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+    el.forProcessed = true; // avoid recursion
+    return "_l((" + exp + ")," +
+      "function(" + alias + iterator1 + iterator2 + "){" +
+        "return " + (genScopedSlot(key, el, state)) +
+      '})'
+  }
+
+  function genChildren (
+    el,
+    state,
+    checkSkip,
+    altGenElement,
+    altGenNode
+  ) {
+    var children = el.children;
+    if (children.length) {
+      var el$1 = children[0];
+      // optimize single v-for
+      if (children.length === 1 &&
+        el$1.for &&
+        el$1.tag !== 'template' &&
+        el$1.tag !== 'slot'
+      ) {
+        // because el may be a functional component and return an Array instead of a single root.
+        // In this case, just a simple normalization is needed
+        var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+        return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
+      }
+      var normalizationType$1 = checkSkip
+        ? getNormalizationType(children, state.maybeComponent)
+        : 0;
+      var gen = altGenNode || genNode;
+      return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
+    }
   }
-  processAttrs(element);
-}
 
-function processKey (el) {
-  var exp = getBindingAttr(el, 'key');
-  if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+  // determine the normalization needed for the children array.
+  // 0: no normalization needed
+  // 1: simple normalization needed (possible 1-level deep nested array)
+  // 2: full normalization needed
+  function getNormalizationType (
+    children,
+    maybeComponent
+  ) {
+    var res = 0;
+    for (var i = 0; i < children.length; i++) {
+      var el = children[i];
+      if (el.type !== 1) {
+        continue
+      }
+      if (needsNormalization(el) ||
+          (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+        res = 2;
+        break
+      }
+      if (maybeComponent(el) ||
+          (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+        res = 1;
+      }
     }
-    el.key = exp;
+    return res
   }
-}
 
-function processRef (el) {
-  var ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
+  function needsNormalization (el) {
+    return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
   }
-}
 
-function processFor (el) {
-  var exp;
-  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var res = parseFor(exp);
-    if (res) {
-      extend(el, res);
+  function genNode (node, state) {
+    if (node.type === 1) {
+      return genElement(node, state)
+    } else if (node.type === 3 && node.isComment) {
+      return genComment(node)
     } else {
-      warn$1(
-        ("Invalid v-for expression: " + exp)
-      );
+      return genText(node)
     }
   }
-}
 
+  function genText (text) {
+    return ("_v(" + (text.type === 2
+      ? text.expression // no need for () because already wrapped in _s()
+      : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
+  }
 
+  function genComment (comment) {
+    return ("_e(" + (JSON.stringify(comment.text)) + ")")
+  }
 
-function parseFor (exp) {
-  var inMatch = exp.match(forAliasRE);
-  if (!inMatch) { return }
-  var res = {};
-  res.for = inMatch[2].trim();
-  var alias = inMatch[1].trim().replace(stripParensRE, '');
-  var iteratorMatch = alias.match(forIteratorRE);
-  if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
-    res.iterator1 = iteratorMatch[1].trim();
-    if (iteratorMatch[2]) {
-      res.iterator2 = iteratorMatch[2].trim();
+  function genSlot (el, state) {
+    var slotName = el.slotName || '"default"';
+    var children = genChildren(el, state);
+    var res = "_t(" + slotName + (children ? ("," + children) : '');
+    var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+    var bind$$1 = el.attrsMap['v-bind'];
+    if ((attrs || bind$$1) && !children) {
+      res += ",null";
     }
-  } else {
-    res.alias = alias;
-  }
-  return res
-}
-
-function processIf (el) {
-  var exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
+    if (attrs) {
+      res += "," + attrs;
     }
-    var elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
+    if (bind$$1) {
+      res += (attrs ? '' : ',null') + "," + bind$$1;
     }
+    return res + ')'
   }
-}
 
-function processIfConditions (el, parent) {
-  var prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else {
-    warn$1(
-      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
-    );
+  // componentName is el.component, take it as argument to shun flow's pessimistic refinement
+  function genComponent (
+    componentName,
+    el,
+    state
+  ) {
+    var children = el.inlineTemplate ? null : genChildren(el, state, true);
+    return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
   }
-}
 
-function findPrevElement (children) {
-  var i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i]
-    } else {
-      if ("development" !== 'production' && children[i].text !== ' ') {
-        warn$1(
-          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
-        );
+  function genProps (props) {
+    var res = '';
+    for (var i = 0; i < props.length; i++) {
+      var prop = props[i];
+      /* istanbul ignore if */
+      {
+        res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
       }
-      children.pop();
     }
+    return res.slice(0, -1)
   }
-}
 
-function addIfCondition (el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
+  // #3895, #4268
+  function transformSpecialNewlines (text) {
+    return text
+      .replace(/\u2028/g, '\\u2028')
+      .replace(/\u2029/g, '\\u2029')
   }
-  el.ifConditions.push(condition);
-}
 
-function processOnce (el) {
-  var once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
+  /*  */
+
+  // these keywords should not appear inside expressions, but operators like
+  // typeof, instanceof and in are allowed
+  var prohibitedKeywordRE = new RegExp('\\b' + (
+    'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+    'super,throw,while,yield,delete,export,import,return,switch,default,' +
+    'extends,finally,continue,debugger,function,arguments'
+  ).split(',').join('\\b|\\b') + '\\b');
+
+  // these unary operators should not be used as property/method names
+  var unaryOperatorsRE = new RegExp('\\b' + (
+    'delete,typeof,void'
+  ).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+  // strip strings in expressions
+  var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+  // detect problematic expressions in a template
+  function detectErrors (ast) {
+    var errors = [];
+    if (ast) {
+      checkNode(ast, errors);
+    }
+    return errors
+  }
+
+  function checkNode (node, errors) {
+    if (node.type === 1) {
+      for (var name in node.attrsMap) {
+        if (dirRE.test(name)) {
+          var value = node.attrsMap[name];
+          if (value) {
+            if (name === 'v-for') {
+              checkFor(node, ("v-for=\"" + value + "\""), errors);
+            } else if (onRE.test(name)) {
+              checkEvent(value, (name + "=\"" + value + "\""), errors);
+            } else {
+              checkExpression(value, (name + "=\"" + value + "\""), errors);
+            }
+          }
+        }
+      }
+      if (node.children) {
+        for (var i = 0; i < node.children.length; i++) {
+          checkNode(node.children[i], errors);
+        }
+      }
+    } else if (node.type === 2) {
+      checkExpression(node.expression, node.text, errors);
+    }
   }
-}
 
-function processSlot (el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if ("development" !== 'production' && el.key) {
-      warn$1(
-        "`key` does not work on <slot> because slots are abstract outlets " +
-        "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
+  function checkEvent (exp, text, errors) {
+    var stipped = exp.replace(stripStringRE, '');
+    var keywordMatch = stipped.match(unaryOperatorsRE);
+    if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+      errors.push(
+        "avoid using JavaScript unary operator as property name: " +
+        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
       );
     }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if ("development" !== 'production' && slotScope) {
-        warn$1(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
+    checkExpression(exp, text, errors);
+  }
+
+  function checkFor (node, text, errors) {
+    checkExpression(node.for || '', text, errors);
+    checkIdentifier(node.alias, 'v-for alias', text, errors);
+    checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+    checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+  }
+
+  function checkIdentifier (
+    ident,
+    type,
+    text,
+    errors
+  ) {
+    if (typeof ident === 'string') {
+      try {
+        new Function(("var " + ident + "=_"));
+      } catch (e) {
+        errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
       }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if ("development" !== 'production' && el.attrsMap['v-for']) {
-        warn$1(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
+    }
+  }
+
+  function checkExpression (exp, text, errors) {
+    try {
+      new Function(("return " + exp));
+    } catch (e) {
+      var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+      if (keywordMatch) {
+        errors.push(
+          "avoid using JavaScript keyword as property name: " +
+          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+        );
+      } else {
+        errors.push(
+          "invalid expression: " + (e.message) + " in\n\n" +
+          "    " + exp + "\n\n" +
+          "  Raw expression: " + (text.trim()) + "\n"
         );
-      }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
       }
     }
   }
-}
 
-function processComponent (el) {
-  var binding;
-  if ((binding = getBindingAttr(el, 'is'))) {
-    el.component = binding;
-  }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
+  /*  */
+
+
+
+  function createFunction (code, errors) {
+    try {
+      return new Function(code)
+    } catch (err) {
+      errors.push({ err: err, code: code });
+      return noop
+    }
   }
-}
 
-function processAttrs (el) {
-  var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
-      }
-      if (bindRE.test(name)) { // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') { name = 'innerHTML'; }
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
+  function createCompileToFunctionFn (compile) {
+    var cache = Object.create(null);
+
+    return function compileToFunctions (
+      template,
+      options,
+      vm
+    ) {
+      options = extend({}, options);
+      var warn$$1 = options.warn || warn;
+      delete options.warn;
+
+      /* istanbul ignore if */
+      {
+        // detect possible CSP restriction
+        try {
+          new Function('return 1');
+        } catch (e) {
+          if (e.toString().match(/unsafe-eval|CSP/)) {
+            warn$$1(
+              'It seems you are using the standalone build of Vue.js in an ' +
+              'environment with Content Security Policy that prohibits unsafe-eval. ' +
+              'The template compiler cannot work in this environment. Consider ' +
+              'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+              'templates into render functions.'
             );
           }
         }
-        if (isProp || (
-          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-        )) {
-          addProp(el, name, value);
-        } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) { // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$1);
-      } else { // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        var argMatch = name.match(argRE);
-        var arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
+      }
+
+      // check cache
+      var key = options.delimiters
+        ? String(options.delimiters) + template
+        : template;
+      if (cache[key]) {
+        return cache[key]
+      }
+
+      // compile
+      var compiled = compile(template, options);
+
+      // check compilation errors/tips
+      {
+        if (compiled.errors && compiled.errors.length) {
+          warn$$1(
+            "Error compiling template:\n\n" + template + "\n\n" +
+            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+            vm
+          );
         }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if ("development" !== 'production' && name === 'model') {
-          checkForAliasModel(el, value);
+        if (compiled.tips && compiled.tips.length) {
+          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
         }
       }
-    } else {
-      // literal attribute
+
+      // turn code into functions
+      var res = {};
+      var fnGenErrors = [];
+      res.render = createFunction(compiled.render, fnGenErrors);
+      res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+        return createFunction(code, fnGenErrors)
+      });
+
+      // check function generation errors.
+      // this should only happen if there is a bug in the compiler itself.
+      // mostly for codegen development use
+      /* istanbul ignore if */
       {
-        var res = parseText(value, delimiters);
-        if (res) {
-          warn$1(
-            name + "=\"" + value + "\": " +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
+        if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+          warn$$1(
+            "Failed to generate render function:\n\n" +
+            fnGenErrors.map(function (ref) {
+              var err = ref.err;
+              var code = ref.code;
+
+              return ((err.toString()) + " in\n\n" + code + "\n");
+          }).join('\n'),
+            vm
           );
         }
       }
-      addAttr(el, name, JSON.stringify(value));
-      // #6887 firefox doesn't update muted state if set via attribute
-      // even immediately after element creation
-      if (!el.component &&
-          name === 'muted' &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
-      }
-    }
-  }
-}
 
-function checkInFor (el) {
-  var parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true
+      return (cache[key] = res)
     }
-    parent = parent.parent;
   }
-  return false
-}
 
-function parseModifiers (name) {
-  var match = name.match(modifierRE);
-  if (match) {
-    var ret = {};
-    match.forEach(function (m) { ret[m.slice(1)] = true; });
-    return ret
-  }
-}
+  /*  */
 
-function makeAttrsMap (attrs) {
-  var map = {};
-  for (var i = 0, l = attrs.length; i < l; i++) {
-    if (
-      "development" !== 'production' &&
-      map[attrs[i].name] && !isIE && !isEdge
-    ) {
-      warn$1('duplicate attribute: ' + attrs[i].name);
+  function createCompilerCreator (baseCompile) {
+    return function createCompiler (baseOptions) {
+      function compile (
+        template,
+        options
+      ) {
+        var finalOptions = Object.create(baseOptions);
+        var errors = [];
+        var tips = [];
+        finalOptions.warn = function (msg, tip) {
+          (tip ? tips : errors).push(msg);
+        };
+
+        if (options) {
+          // merge custom modules
+          if (options.modules) {
+            finalOptions.modules =
+              (baseOptions.modules || []).concat(options.modules);
+          }
+          // merge custom directives
+          if (options.directives) {
+            finalOptions.directives = extend(
+              Object.create(baseOptions.directives || null),
+              options.directives
+            );
+          }
+          // copy other options
+          for (var key in options) {
+            if (key !== 'modules' && key !== 'directives') {
+              finalOptions[key] = options[key];
+            }
+          }
+        }
+
+        var compiled = baseCompile(template, finalOptions);
+        {
+          errors.push.apply(errors, detectErrors(compiled.ast));
+        }
+        compiled.errors = errors;
+        compiled.tips = tips;
+        return compiled
+      }
+
+      return {
+        compile: compile,
+        compileToFunctions: createCompileToFunctionFn(compile)
+      }
     }
-    map[attrs[i].name] = attrs[i].value;
   }
-  return map
-}
 
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
+  /*  */
 
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
-}
-
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
-
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
+  // `createCompilerCreator` allows creating compilers that use alternative
+  // parser/optimizer/codegen, e.g the SSR optimizing compiler.
+  // Here we just export a default compiler using the default parts.
+  var createCompiler = createCompilerCreator(function baseCompile (
+    template,
+    options
+  ) {
+    var ast = parse(template.trim(), options);
+    if (options.optimize !== false) {
+      optimize(ast, options);
     }
-  }
-  return res
-}
-
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
+    var code = generate(ast, options);
+    return {
+      ast: ast,
+      render: code.render,
+      staticRenderFns: code.staticRenderFns
     }
-    _el = _el.parent;
-  }
-}
-
-/*  */
+  });
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
+  /*  */
+
+  var ref = createCompiler(baseOptions);
+  var compile = ref.compile;
+  var compileToFunctions = ref.compileToFunctions;
+
+  /*  */
+
+  var isAttr = makeMap(
+    'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
+    'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
+    'checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,' +
+    'name,contenteditable,contextmenu,controls,coords,data,datetime,default,' +
+    'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,' +
+    'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
+    'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
+    'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
+    'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
+    'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
+    'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
+    'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
+    'target,title,type,usemap,value,width,wrap'
+  );
 
-function preTransformNode (el, options) {
-  if (el.tag === 'input') {
-    var map = el.attrsMap;
-    if (!map['v-model']) {
-      return
-    }
+  /* istanbul ignore next */
+  var isRenderableAttr = function (name) {
+    return (
+      isAttr(name) ||
+      name.indexOf('data-') === 0 ||
+      name.indexOf('aria-') === 0
+    )
+  };
 
-    var typeBinding;
-    if (map[':type'] || map['v-bind:type']) {
-      typeBinding = getBindingAttr(el, 'type');
-    }
-    if (!map.type && !typeBinding && map['v-bind']) {
-      typeBinding = "(" + (map['v-bind']) + ").type";
-    }
-
-    if (typeBinding) {
-      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
-      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
-      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-      // 1. checkbox
-      var branch0 = cloneASTElement(el);
-      // process for on the main node
-      processFor(branch0);
-      addRawAttr(branch0, 'type', 'checkbox');
-      processElement(branch0, options);
-      branch0.processed = true; // prevent it from double-processed
-      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
-      addIfCondition(branch0, {
-        exp: branch0.if,
-        block: branch0
-      });
-      // 2. add radio else-if condition
-      var branch1 = cloneASTElement(el);
-      getAndRemoveAttr(branch1, 'v-for', true);
-      addRawAttr(branch1, 'type', 'radio');
-      processElement(branch1, options);
-      addIfCondition(branch0, {
-        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
-        block: branch1
-      });
-      // 3. other
-      var branch2 = cloneASTElement(el);
-      getAndRemoveAttr(branch2, 'v-for', true);
-      addRawAttr(branch2, ':type', typeBinding);
-      processElement(branch2, options);
-      addIfCondition(branch0, {
-        exp: ifCondition,
-        block: branch2
-      });
+  var propsToAttrMap = {
+    acceptCharset: 'accept-charset',
+    className: 'class',
+    htmlFor: 'for',
+    httpEquiv: 'http-equiv'
+  };
 
-      if (hasElse) {
-        branch0.else = true;
-      } else if (elseIfCondition) {
-        branch0.elseif = elseIfCondition;
-      }
+  var ESC = {
+    '<': '&lt;',
+    '>': '&gt;',
+    '"': '&quot;',
+    '&': '&amp;'
+  };
 
-      return branch0
-    }
+  function escape (s) {
+    return s.replace(/[<>"&]/g, escapeChar)
   }
-}
 
-function cloneASTElement (el) {
-  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-}
+  function escapeChar (a) {
+    return ESC[a] || a
+  }
 
-var model = {
-  preTransformNode: preTransformNode
-}
+  /*  */
 
-var modules = [
-  klass,
-  style,
-  model
-]
 
-/*  */
 
-var warn$2;
 
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
 
 
-function model$1 (
-  el,
-  dir,
-  _warn
-) {
-  warn$2 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
+  var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
-  {
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
+  // let the model AST transform translate v-model into appropriate
+  // props bindings
+  function applyModelTransform (el, state) {
+    if (el.directives) {
+      for (var i = 0; i < el.directives.length; i++) {
+        var dir = el.directives[i];
+        if (dir.name === 'model') {
+          state.directives.model(el, dir, state.warn);
+          // remove value for textarea as its converted to text
+          if (el.tag === 'textarea' && el.props) {
+            el.props = el.props.filter(function (p) { return p.name !== 'value'; });
+          }
+          break
+        }
+      }
     }
   }
 
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else {
-    warn$2(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
+  function genAttrSegments (
+    attrs
+  ) {
+    return attrs.map(function (ref) {
+      var name = ref.name;
+      var value = ref.value;
 
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-    "?_i(" + value + "," + valueBinding + ")>-1" + (
-      trueValueBinding === 'true'
-        ? (":(" + value + ")")
-        : (":_q(" + value + "," + trueValueBinding + ")")
-    )
-  );
-  addHandler(el, 'change',
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
-      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-
-  // warn if v-bind:value conflicts with v-model
-  // except for inputs with v-bind:type
-  {
-    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (value$1 && !typeBinding) {
-      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$2(
-        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
+      return genAttrSegment(name, value);
+    })
   }
 
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives = {
-  model: model$1,
-  text: text,
-  html: html
-}
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules,
-  directives: directives,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules)
-};
-
-/*  */
-
-var isStaticKey;
-var isPlatformReservedTag;
-
-var genStaticKeysCached = cached(genStaticKeys$1);
-
-/**
- * Goal of the optimizer: walk the generated template AST tree
- * and detect sub-trees that are purely static, i.e. parts of
- * the DOM that never needs to change.
- *
- * Once we detect these sub-trees, we can:
- *
- * 1. Hoist them into constants, so that we no longer need to
- *    create fresh nodes for them on each re-render;
- * 2. Completely skip them in the patching process.
- */
-function optimize (root, options) {
-  if (!root) { return }
-  isStaticKey = genStaticKeysCached(options.staticKeys || '');
-  isPlatformReservedTag = options.isReservedTag || no;
-  // first pass: mark all non-static nodes.
-  markStatic(root);
-  // second pass: mark static roots.
-  markStaticRoots(root, false);
-}
-
-function genStaticKeys$1 (keys) {
-  return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
-    (keys ? ',' + keys : '')
-  )
-}
-
-function markStatic (node) {
-  node.static = isStatic(node);
-  if (node.type === 1) {
-    // do not make component slot content static. this avoids
-    // 1. components not able to mutate slot nodes
-    // 2. static slot content fails for hot-reloading
-    if (
-      !isPlatformReservedTag(node.tag) &&
-      node.tag !== 'slot' &&
-      node.attrsMap['inline-template'] == null
-    ) {
-      return
-    }
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      markStatic(child);
-      if (!child.static) {
-        node.static = false;
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        markStatic(block);
-        if (!block.static) {
-          node.static = false;
-        }
+  function genDOMPropSegments (
+    props,
+    attrs
+  ) {
+    var segments = [];
+    props.forEach(function (ref) {
+      var name = ref.name;
+      var value = ref.value;
+
+      name = propsToAttrMap[name] || name.toLowerCase();
+      if (isRenderableAttr(name) &&
+        !(attrs && attrs.some(function (a) { return a.name === name; }))
+      ) {
+        segments.push(genAttrSegment(name, value));
       }
-    }
+    });
+    return segments
   }
-}
 
-function markStaticRoots (node, isInFor) {
-  if (node.type === 1) {
-    if (node.static || node.once) {
-      node.staticInFor = isInFor;
-    }
-    // For a node to qualify as a static root, it should have children that
-    // are not just static text. Otherwise the cost of hoisting out will
-    // outweigh the benefits and it's better off to just always render it fresh.
-    if (node.static && node.children.length && !(
-      node.children.length === 1 &&
-      node.children[0].type === 3
-    )) {
-      node.staticRoot = true;
-      return
-    } else {
-      node.staticRoot = false;
-    }
-    if (node.children) {
-      for (var i = 0, l = node.children.length; i < l; i++) {
-        markStaticRoots(node.children[i], isInFor || !!node.for);
+  function genAttrSegment (name, value) {
+    if (plainStringRE.test(value)) {
+      // force double quote
+      value = value.replace(/^'|'$/g, '"');
+      // force enumerated attr to "true"
+      if (isEnumeratedAttr(name) && value !== "\"false\"") {
+        value = "\"true\"";
       }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        markStaticRoots(node.ifConditions[i$1].block, isInFor);
+      return {
+        type: RAW,
+        value: isBooleanAttr(name)
+          ? (" " + name + "=\"" + name + "\"")
+          : value === '""'
+            ? (" " + name)
+            : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
       }
-    }
-  }
-}
-
-function isStatic (node) {
-  if (node.type === 2) { // expression
-    return false
-  }
-  if (node.type === 3) { // text
-    return true
-  }
-  return !!(node.pre || (
-    !node.hasBindings && // no dynamic bindings
-    !node.if && !node.for && // not v-if or v-for or v-else
-    !isBuiltInTag(node.tag) && // not a built-in
-    isPlatformReservedTag(node.tag) && // not a component
-    !isDirectChildOfTemplateFor(node) &&
-    Object.keys(node).every(isStaticKey)
-  ))
-}
-
-function isDirectChildOfTemplateFor (node) {
-  while (node.parent) {
-    node = node.parent;
-    if (node.tag !== 'template') {
-      return false
-    }
-    if (node.for) {
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
-
-// KeyboardEvent.keyCode aliases
-var keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// KeyboardEvent.key aliases
-var keyNames = {
-  // #7880: IE11 and Edge use `Esc` for Escape key name.
-  esc: ['Esc', 'Escape'],
-  tab: 'Tab',
-  enter: 'Enter',
-  space: ' ',
-  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
-  up: ['Up', 'ArrowUp'],
-  left: ['Left', 'ArrowLeft'],
-  right: ['Right', 'ArrowRight'],
-  down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
-
-var modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard("$event.target !== $event.currentTarget"),
-  ctrl: genGuard("!$event.ctrlKey"),
-  shift: genGuard("!$event.shiftKey"),
-  alt: genGuard("!$event.altKey"),
-  meta: genGuard("!$event.metaKey"),
-  left: genGuard("'button' in $event && $event.button !== 0"),
-  middle: genGuard("'button' in $event && $event.button !== 1"),
-  right: genGuard("'button' in $event && $event.button !== 2")
-};
-
-function genHandlers (
-  events,
-  isNative,
-  warn
-) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
-  for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
-  }
-  return res.slice(0, -1) + '}'
-}
-
-function genHandler (
-  name,
-  handler
-) {
-  if (!handler) {
-    return 'function(){}'
-  }
-
-  if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
-  }
-
-  var isMethodPath = simplePathRE.test(handler.value);
-  var isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    if (isMethodPath || isFunctionExpression) {
-      return handler.value
-    }
-    /* istanbul ignore if */
-    return ("function($event){" + (handler.value) + "}") // inline statement
-  } else {
-    var code = '';
-    var genModifierCode = '';
-    var keys = [];
-    for (var key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else if (key === 'exact') {
-        var modifiers = (handler.modifiers);
-        genModifierCode += genGuard(
-          ['ctrl', 'shift', 'alt', 'meta']
-            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
-            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
-            .join('||')
-        );
-      } else {
-        keys.push(key);
+    } else {
+      return {
+        type: EXPRESSION,
+        value: ("_ssrAttr(" + (JSON.stringify(name)) + "," + value + ")")
       }
     }
-    if (keys.length) {
-      code += genKeyFilter(keys);
-    }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
-    }
-    var handlerCode = isMethodPath
-      ? ("return " + (handler.value) + "($event)")
-      : isFunctionExpression
-        ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
-    /* istanbul ignore if */
-    return ("function($event){" + code + handlerCode + "}")
-  }
-}
-
-function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
-}
-
-function genFilterCode (key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return ("$event.keyCode!==" + keyVal)
   }
-  var keyCode = keyCodes[key];
-  var keyName = keyNames[key];
-  return (
-    "_k($event.keyCode," +
-    (JSON.stringify(key)) + "," +
-    (JSON.stringify(keyCode)) + "," +
-    "$event.key," +
-    "" + (JSON.stringify(keyName)) +
-    ")"
-  )
-}
-
-/*  */
-
-function on (el, dir) {
-  if ("development" !== 'production' && dir.modifiers) {
-    warn("v-on without argument does not support modifiers.");
-  }
-  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
-}
-
-/*  */
 
-function bind$1 (el, dir) {
-  el.wrapData = function (code) {
-    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on: on,
-  bind: bind$1,
-  cloak: noop
-}
-
-/*  */
-
-var CodegenState = function CodegenState (options) {
-  this.options = options;
-  this.warn = options.warn || baseWarn;
-  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  this.directives = extend(extend({}, baseDirectives), options.directives);
-  var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
-  this.onceId = 0;
-  this.staticRenderFns = [];
-};
-
-
-
-function generate (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genElement (el, state) {
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state)
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state)
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
-    return genChildren(el, state) || 'void 0'
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state)
-  } else {
-    // component or element
-    var code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
+  function genClassSegments (
+    staticClass,
+    classBinding
+  ) {
+    if (staticClass && !classBinding) {
+      return [{ type: RAW, value: (" class=\"" + (JSON.parse(staticClass)) + "\"") }]
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
-
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
-    }
-    // module transforms
-    for (var i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code
-  }
-}
-
-// hoist static sub-trees out
-function genStatic (el, state) {
-  el.staticProcessed = true;
-  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
-}
-
-// v-once
-function genOnce (el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.staticInFor) {
-    var key = '';
-    var parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break
-      }
-      parent = parent.parent;
+      return [{
+        type: EXPRESSION,
+        value: ("_ssrClass(" + (staticClass || 'null') + "," + (classBinding || 'null') + ")")
+      }]
     }
-    if (!key) {
-      "development" !== 'production' && state.warn(
-        "v-once can only be used inside v-for that is keyed. "
-      );
-      return genElement(el, state)
-    }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
-  } else {
-    return genStatic(el, state)
-  }
-}
-
-function genIf (
-  el,
-  state,
-  altGen,
-  altEmpty
-) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-}
-
-function genIfConditions (
-  conditions,
-  state,
-  altGen,
-  altEmpty
-) {
-  if (!conditions.length) {
-    return altEmpty || '_e()'
-  }
-
-  var condition = conditions.shift();
-  if (condition.exp) {
-    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
-  } else {
-    return ("" + (genTernaryExp(condition.block)))
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp (el) {
-    return altGen
-      ? altGen(el, state)
-      : el.once
-        ? genOnce(el, state)
-        : genElement(el, state)
-  }
-}
-
-function genFor (
-  el,
-  state,
-  altGen,
-  altHelper
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-
-  if ("development" !== 'production' &&
-    state.maybeComponent(el) &&
-    el.tag !== 'slot' &&
-    el.tag !== 'template' &&
-    !el.key
-  ) {
-    state.warn(
-      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
-      "v-for should have explicit keys. " +
-      "See https://vuejs.org/guide/list.html#key for more info.",
-      true /* tip */
-    );
   }
 
-  el.forProcessed = true; // avoid recursion
-  return (altHelper || '_l') + "((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + ((altGen || genElement)(el, state)) +
-    '})'
-}
-
-function genData$2 (el, state) {
-  var data = '{';
-
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el, state);
-  if (dirs) { data += dirs + ','; }
-
-  // key
-  if (el.key) {
-    data += "key:" + (el.key) + ",";
-  }
-  // ref
-  if (el.ref) {
-    data += "ref:" + (el.ref) + ",";
-  }
-  if (el.refInFor) {
-    data += "refInFor:true,";
-  }
-  // pre
-  if (el.pre) {
-    data += "pre:true,";
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += "tag:\"" + (el.tag) + "\",";
-  }
-  // module data generation functions
-  for (var i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
-  }
-  // DOM props
-  if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
-  }
-  // event handlers
-  if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
-  }
-  if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
-  }
-  // slot target
-  // only for non-scoped slots
-  if (el.slotTarget && !el.slotScope) {
-    data += "slot:" + (el.slotTarget) + ",";
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
-  }
-  // component v-model
-  if (el.model) {
-    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += inlineTemplate + ",";
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data
-}
-
-function genDirectives (el, state) {
-  var dirs = el.directives;
-  if (!dirs) { return }
-  var res = 'directives:[';
-  var hasRuntime = false;
-  var i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    var gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']'
-  }
-}
-
-function genInlineTemplate (el, state) {
-  var ast = el.children[0];
-  if ("development" !== 'production' && (
-    el.children.length !== 1 || ast.type !== 1
-  )) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, state.options);
-    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
-  }
-}
-
-function genScopedSlots (
-  slots,
-  state
-) {
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
-}
-
-function genScopedSlot (
-  key,
-  el,
-  state
-) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
-  }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
-    "return " + (el.tag === 'template'
-      ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
-      : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
-}
-
-function genChildren (
-  el,
-  state,
-  checkSkip,
-  altGenElement,
-  altGenNode
-) {
-  var children = el.children;
-  if (children.length) {
-    var el$1 = children[0];
-    // optimize single v-for
-    if (children.length === 1 &&
-      el$1.for &&
-      el$1.tag !== 'template' &&
-      el$1.tag !== 'slot'
-    ) {
-      return (altGenElement || genElement)(el$1, state)
-    }
-    var normalizationType = checkSkip
-      ? getNormalizationType(children, state.maybeComponent)
-      : 0;
-    var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType (
-  children,
-  maybeComponent
-) {
-  var res = 0;
-  for (var i = 0; i < children.length; i++) {
-    var el = children[i];
-    if (el.type !== 1) {
-      continue
-    }
-    if (needsNormalization(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
-      res = 2;
-      break
-    }
-    if (maybeComponent(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
-      res = 1;
-    }
-  }
-  return res
-}
-
-function needsNormalization (el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-}
-
-function genNode (node, state) {
-  if (node.type === 1) {
-    return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
-    return genComment(node)
-  } else {
-    return genText(node)
-  }
-}
-
-function genText (text) {
-  return ("_v(" + (text.type === 2
-    ? text.expression // no need for () because already wrapped in _s()
-    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
-}
-
-function genComment (comment) {
-  return ("_e(" + (JSON.stringify(comment.text)) + ")")
-}
-
-function genSlot (el, state) {
-  var slotName = el.slotName || '"default"';
-  var children = genChildren(el, state);
-  var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
-  var bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += ",null";
-  }
-  if (attrs) {
-    res += "," + attrs;
-  }
-  if (bind$$1) {
-    res += (attrs ? '' : ',null') + "," + bind$$1;
-  }
-  return res + ')'
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (
-  componentName,
-  el,
-  state
-) {
-  var children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
-}
-
-function genProps (props) {
-  var res = '';
-  for (var i = 0; i < props.length; i++) {
-    var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+  function genStyleSegments (
+    staticStyle,
+    parsedStaticStyle,
+    styleBinding,
+    vShowExpression
+  ) {
+    if (staticStyle && !styleBinding && !vShowExpression) {
+      return [{ type: RAW, value: (" style=" + (JSON.stringify(staticStyle))) }]
+    } else {
+      return [{
+        type: EXPRESSION,
+        value: ("_ssrStyle(" + (parsedStaticStyle || 'null') + "," + (styleBinding || 'null') + ", " + (vShowExpression
+            ? ("{ display: (" + vShowExpression + ") ? '' : 'none' }")
+            : 'null') + ")")
+      }]
     }
   }
-  return res.slice(0, -1)
-}
-
-// #3895, #4268
-function transformSpecialNewlines (text) {
-  return text
-    .replace(/\u2028/g, '\\u2028')
-    .replace(/\u2029/g, '\\u2029')
-}
-
-/*  */
 
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-var prohibitedKeywordRE = new RegExp('\\b' + (
-  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-  'super,throw,while,yield,delete,export,import,return,switch,default,' +
-  'extends,finally,continue,debugger,function,arguments'
-).split(',').join('\\b|\\b') + '\\b');
+  /*  */
 
-// these unary operators should not be used as property/method names
-var unaryOperatorsRE = new RegExp('\\b' + (
-  'delete,typeof,void'
-).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+  // optimizability constants
+  var optimizability = {
+    FALSE: 0,    // whole sub tree un-optimizable
+    FULL: 1,     // whole sub tree optimizable
+    SELF: 2,     // self optimizable but has some un-optimizable children
+    CHILDREN: 3, // self un-optimizable but have fully optimizable children
+    PARTIAL: 4   // self un-optimizable with some un-optimizable children
+  };
 
-// strip strings in expressions
-var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+  var isPlatformReservedTag$1;
 
-// detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
-  if (ast) {
-    checkNode(ast, errors);
+  function optimize$1 (root, options) {
+    if (!root) { return }
+    isPlatformReservedTag$1 = options.isReservedTag || no;
+    walk(root, true);
   }
-  return errors
-}
 
-function checkNode (node, errors) {
-  if (node.type === 1) {
-    for (var name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        var value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
-          } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
-          }
-        }
+  function walk (node, isRoot) {
+    if (isUnOptimizableTree(node)) {
+      node.ssrOptimizability = optimizability.FALSE;
+      return
+    }
+    // root node or nodes with custom directives should always be a VNode
+    var selfUnoptimizable = isRoot || hasCustomDirective(node);
+    var check = function (child) {
+      if (child.ssrOptimizability !== optimizability.FULL) {
+        node.ssrOptimizability = selfUnoptimizable
+          ? optimizability.PARTIAL
+          : optimizability.SELF;
       }
+    };
+    if (selfUnoptimizable) {
+      node.ssrOptimizability = optimizability.CHILDREN;
     }
-    if (node.children) {
-      for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
+    if (node.type === 1) {
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        var child = node.children[i];
+        walk(child);
+        check(child);
       }
+      if (node.ifConditions) {
+        for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+          var block = node.ifConditions[i$1].block;
+          walk(block, isRoot);
+          check(block);
+        }
+      }
+      if (node.ssrOptimizability == null ||
+        (!isRoot && (node.attrsMap['v-html'] || node.attrsMap['v-text']))
+      ) {
+        node.ssrOptimizability = optimizability.FULL;
+      } else {
+        node.children = optimizeSiblings(node);
+      }
+    } else {
+      node.ssrOptimizability = optimizability.FULL;
     }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
   }
-}
 
-function checkEvent (exp, text, errors) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
-      "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
-    );
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier (
-  ident,
-  type,
-  text,
-  errors
-) {
-  if (typeof ident === 'string') {
-    try {
-      new Function(("var " + ident + "=_"));
-    } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+  function optimizeSiblings (el) {
+    var children = el.children;
+    var optimizedChildren = [];
+
+    var currentOptimizableGroup = [];
+    var pushGroup = function () {
+      if (currentOptimizableGroup.length) {
+        optimizedChildren.push({
+          type: 1,
+          parent: el,
+          tag: 'template',
+          attrsList: [],
+          attrsMap: {},
+          children: currentOptimizableGroup,
+          ssrOptimizability: optimizability.FULL
+        });
+      }
+      currentOptimizableGroup = [];
+    };
+
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (c.ssrOptimizability === optimizability.FULL) {
+        currentOptimizableGroup.push(c);
+      } else {
+        // wrap fully-optimizable adjacent siblings inside a template tag
+        // so that they can be optimized into a single ssrNode by codegen
+        pushGroup();
+        optimizedChildren.push(c);
+      }
     }
+    pushGroup();
+    return optimizedChildren
   }
-}
 
-function checkExpression (exp, text, errors) {
-  try {
-    new Function(("return " + exp));
-  } catch (e) {
-    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push(
-        "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
-      );
-    } else {
-      errors.push(
-        "invalid expression: " + (e.message) + " in\n\n" +
-        "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
-      );
+  function isUnOptimizableTree (node) {
+    if (node.type === 2 || node.type === 3) { // text or expression
+      return false
     }
+    return (
+      isBuiltInTag(node.tag) || // built-in (slot, component)
+      !isPlatformReservedTag$1(node.tag) || // custom component
+      !!node.component || // "is" component
+      isSelectWithModel(node) // <select v-model> requires runtime inspection
+    )
   }
-}
 
-/*  */
+  var isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
 
-function createFunction (code, errors) {
-  try {
-    return new Function(code)
-  } catch (err) {
-    errors.push({ err: err, code: code });
-    return noop
+  function hasCustomDirective (node) {
+    return (
+      node.type === 1 &&
+      node.directives &&
+      node.directives.some(function (d) { return !isBuiltInDir(d.name); })
+    )
   }
-}
 
-function createCompileToFunctionFn (compile) {
-  var cache = Object.create(null);
+  // <select v-model> cannot be optimized because it requires a runtime check
+  // to determine proper selected option
+  function isSelectWithModel (node) {
+    return (
+      node.type === 1 &&
+      node.tag === 'select' &&
+      node.directives != null &&
+      node.directives.some(function (d) { return d.name === 'model'; })
+    )
+  }
 
-  return function compileToFunctions (
-    template,
-    options,
-    vm
-  ) {
-    options = extend({}, options);
-    var warn$$1 = options.warn || warn;
-    delete options.warn;
+  /*  */
 
-    /* istanbul ignore if */
-    {
-      // detect possible CSP restriction
-      try {
-        new Function('return 1');
-      } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$$1(
-            'It seems you are using the standalone build of Vue.js in an ' +
-            'environment with Content Security Policy that prohibits unsafe-eval. ' +
-            'The template compiler cannot work in this environment. Consider ' +
-            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-            'templates into render functions.'
-          );
-        }
-      }
-    }
 
-    // check cache
-    var key = options.delimiters
-      ? String(options.delimiters) + template
-      : template;
-    if (cache[key]) {
-      return cache[key]
-    }
 
-    // compile
-    var compiled = compile(template, options);
 
-    // check compilation errors/tips
-    {
-      if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
-        );
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
-      }
-    }
+  // segment types
+  var RAW = 0;
+  var INTERPOLATION = 1;
+  var EXPRESSION = 2;
 
-    // turn code into functions
-    var res = {};
-    var fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-      return createFunction(code, fnGenErrors)
-    });
+  function generate$1 (
+    ast,
+    options
+  ) {
+    var state = new CodegenState(options);
+    var code = ast ? genSSRElement(ast, state) : '_c("div")';
+    return {
+      render: ("with(this){return " + code + "}"),
+      staticRenderFns: state.staticRenderFns
+    }
+  }
 
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn$$1(
-          "Failed to generate render function:\n\n" +
-          fnGenErrors.map(function (ref) {
-            var err = ref.err;
-            var code = ref.code;
-
-            return ((err.toString()) + " in\n\n" + code + "\n");
-        }).join('\n'),
-          vm
-        );
-      }
+  function genSSRElement (el, state) {
+    if (el.for && !el.forProcessed) {
+      return genFor(el, state, genSSRElement)
+    } else if (el.if && !el.ifProcessed) {
+      return genIf(el, state, genSSRElement)
+    } else if (el.tag === 'template' && !el.slotTarget) {
+      return el.ssrOptimizability === optimizability.FULL
+        ? genChildrenAsStringNode(el, state)
+        : genSSRChildren(el, state) || 'void 0'
     }
 
-    return (cache[key] = res)
+    switch (el.ssrOptimizability) {
+      case optimizability.FULL:
+        // stringify whole tree
+        return genStringElement(el, state)
+      case optimizability.SELF:
+        // stringify self and check children
+        return genStringElementWithChildren(el, state)
+      case optimizability.CHILDREN:
+        // generate self as VNode and stringify children
+        return genNormalElement(el, state, true)
+      case optimizability.PARTIAL:
+        // generate self as VNode and check children
+        return genNormalElement(el, state, false)
+      default:
+        // bail whole tree
+        return genElement(el, state)
+    }
   }
-}
-
-/*  */
 
-function createCompilerCreator (baseCompile) {
-  return function createCompiler (baseOptions) {
-    function compile (
-      template,
-      options
-    ) {
-      var finalOptions = Object.create(baseOptions);
-      var errors = [];
-      var tips = [];
-      finalOptions.warn = function (msg, tip) {
-        (tip ? tips : errors).push(msg);
-      };
+  function genNormalElement (el, state, stringifyChildren) {
+    var data = el.plain ? undefined : genData$2(el, state);
+    var children = stringifyChildren
+      ? ("[" + (genChildrenAsStringNode(el, state)) + "]")
+      : genSSRChildren(el, state, true);
+    return ("_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")")
+  }
 
-      if (options) {
-        // merge custom modules
-        if (options.modules) {
-          finalOptions.modules =
-            (baseOptions.modules || []).concat(options.modules);
-        }
-        // merge custom directives
-        if (options.directives) {
-          finalOptions.directives = extend(
-            Object.create(baseOptions.directives || null),
-            options.directives
-          );
-        }
-        // copy other options
-        for (var key in options) {
-          if (key !== 'modules' && key !== 'directives') {
-            finalOptions[key] = options[key];
-          }
-        }
-      }
+  function genSSRChildren (el, state, checkSkip) {
+    return genChildren(el, state, checkSkip, genSSRElement, genSSRNode)
+  }
 
-      var compiled = baseCompile(template, finalOptions);
-      {
-        errors.push.apply(errors, detectErrors(compiled.ast));
-      }
-      compiled.errors = errors;
-      compiled.tips = tips;
-      return compiled
-    }
+  function genSSRNode (el, state) {
+    return el.type === 1
+      ? genSSRElement(el, state)
+      : genText(el)
+  }
 
-    return {
-      compile: compile,
-      compileToFunctions: createCompileToFunctionFn(compile)
-    }
-  }
-}
-
-/*  */
-
-// `createCompilerCreator` allows creating compilers that use alternative
-// parser/optimizer/codegen, e.g the SSR optimizing compiler.
-// Here we just export a default compiler using the default parts.
-var createCompiler = createCompilerCreator(function baseCompile (
-  template,
-  options
-) {
-  var ast = parse(template.trim(), options);
-  if (options.optimize !== false) {
-    optimize(ast, options);
-  }
-  var code = generate(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
-  }
-});
-
-/*  */
-
-var ref = createCompiler(baseOptions);
-var compile = ref.compile;
-var compileToFunctions = ref.compileToFunctions;
-
-/*  */
-
-var isAttr = makeMap(
-  'accept,accept-charset,accesskey,action,align,alt,async,autocomplete,' +
-  'autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,' +
-  'checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,' +
-  'name,contenteditable,contextmenu,controls,coords,data,datetime,default,' +
-  'defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,' +
-  'form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,' +
-  'icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,' +
-  'manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,' +
-  'muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,' +
-  'preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,' +
-  'scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,' +
-  'spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,' +
-  'target,title,type,usemap,value,width,wrap'
-);
-
-/* istanbul ignore next */
-var isRenderableAttr = function (name) {
-  return (
-    isAttr(name) ||
-    name.indexOf('data-') === 0 ||
-    name.indexOf('aria-') === 0
-  )
-};
-var propsToAttrMap = {
-  acceptCharset: 'accept-charset',
-  className: 'class',
-  htmlFor: 'for',
-  httpEquiv: 'http-equiv'
-};
-
-var ESC = {
-  '<': '&lt;',
-  '>': '&gt;',
-  '"': '&quot;',
-  '&': '&amp;'
-};
-
-function escape (s) {
-  return s.replace(/[<>"&]/g, escapeChar)
-}
-
-function escapeChar (a) {
-  return ESC[a] || a
-}
-
-/*  */
-
-var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
-
-// let the model AST transform translate v-model into appropriate
-// props bindings
-function applyModelTransform (el, state) {
-  if (el.directives) {
-    for (var i = 0; i < el.directives.length; i++) {
-      var dir = el.directives[i];
-      if (dir.name === 'model') {
-        state.directives.model(el, dir, state.warn);
-        // remove value for textarea as its converted to text
-        if (el.tag === 'textarea' && el.props) {
-          el.props = el.props.filter(function (p) { return p.name !== 'value'; });
-        }
-        break
-      }
-    }
+  function genChildrenAsStringNode (el, state) {
+    return el.children.length
+      ? ("_ssrNode(" + (flattenSegments(childrenToSegments(el, state))) + ")")
+      : ''
   }
-}
 
-function genAttrSegments (
-  attrs
-) {
-  return attrs.map(function (ref) {
-    var name = ref.name;
-    var value = ref.value;
+  function genStringElement (el, state) {
+    return ("_ssrNode(" + (elementToString(el, state)) + ")")
+  }
 
-    return genAttrSegment(name, value);
-  })
-}
+  function genStringElementWithChildren (el, state) {
+    var children = genSSRChildren(el, state, true);
+    return ("_ssrNode(" + (flattenSegments(elementToOpenTagSegments(el, state))) + ",\"</" + (el.tag) + ">\"" + (children ? ("," + children) : '') + ")")
+  }
 
-function genDOMPropSegments (
-  props,
-  attrs
-) {
-  var segments = [];
-  props.forEach(function (ref) {
-    var name = ref.name;
-    var value = ref.value;
+  function elementToString (el, state) {
+    return ("(" + (flattenSegments(elementToSegments(el, state))) + ")")
+  }
 
-    name = propsToAttrMap[name] || name.toLowerCase();
-    if (isRenderableAttr(name) &&
-      !(attrs && attrs.some(function (a) { return a.name === name; }))
-    ) {
-      segments.push(genAttrSegment(name, value));
+  function elementToSegments (el, state) {
+    // v-for / v-if
+    if (el.for && !el.forProcessed) {
+      el.forProcessed = true;
+      return [{
+        type: EXPRESSION,
+        value: genFor(el, state, elementToString, '_ssrList')
+      }]
+    } else if (el.if && !el.ifProcessed) {
+      el.ifProcessed = true;
+      return [{
+        type: EXPRESSION,
+        value: genIf(el, state, elementToString, '"<!---->"')
+      }]
+    } else if (el.tag === 'template') {
+      return childrenToSegments(el, state)
     }
-  });
-  return segments
-}
 
-function genAttrSegment (name, value) {
-  if (plainStringRE.test(value)) {
-    // force double quote
-    value = value.replace(/^'|'$/g, '"');
-    // force enumerated attr to "true"
-    if (isEnumeratedAttr(name) && value !== "\"false\"") {
-      value = "\"true\"";
-    }
-    return {
-      type: RAW,
-      value: isBooleanAttr(name)
-        ? (" " + name + "=\"" + name + "\"")
-        : value === '""'
-          ? (" " + name)
-          : (" " + name + "=\"" + (JSON.parse(value)) + "\"")
+    var openSegments = elementToOpenTagSegments(el, state);
+    var childrenSegments = childrenToSegments(el, state);
+    var ref = state.options;
+    var isUnaryTag = ref.isUnaryTag;
+    var close = (isUnaryTag && isUnaryTag(el.tag))
+      ? []
+      : [{ type: RAW, value: ("</" + (el.tag) + ">") }];
+    return openSegments.concat(childrenSegments, close)
+  }
+
+  function elementToOpenTagSegments (el, state) {
+    applyModelTransform(el, state);
+    var binding;
+    var segments = [{ type: RAW, value: ("<" + (el.tag)) }];
+    // attrs
+    if (el.attrs) {
+      segments.push.apply(segments, genAttrSegments(el.attrs));
     }
-  } else {
-    return {
-      type: EXPRESSION,
-      value: ("_ssrAttr(" + (JSON.stringify(name)) + "," + value + ")")
+    // domProps
+    if (el.props) {
+      segments.push.apply(segments, genDOMPropSegments(el.props, el.attrs));
     }
-  }
-}
-
-function genClassSegments (
-  staticClass,
-  classBinding
-) {
-  if (staticClass && !classBinding) {
-    return [{ type: RAW, value: (" class=" + staticClass) }]
-  } else {
-    return [{
-      type: EXPRESSION,
-      value: ("_ssrClass(" + (staticClass || 'null') + "," + (classBinding || 'null') + ")")
-    }]
-  }
-}
-
-function genStyleSegments (
-  staticStyle,
-  parsedStaticStyle,
-  styleBinding,
-  vShowExpression
-) {
-  if (staticStyle && !styleBinding && !vShowExpression) {
-    return [{ type: RAW, value: (" style=" + (JSON.stringify(staticStyle))) }]
-  } else {
-    return [{
-      type: EXPRESSION,
-      value: ("_ssrStyle(" + (parsedStaticStyle || 'null') + "," + (styleBinding || 'null') + ", " + (vShowExpression
-          ? ("{ display: (" + vShowExpression + ") ? '' : 'none' }")
-          : 'null') + ")")
-    }]
-  }
-}
-
-/*  */
-
-/**
- * In SSR, the vdom tree is generated only once and never patched, so
- * we can optimize most element / trees into plain string render functions.
- * The SSR optimizer walks the AST tree to detect optimizable elements and trees.
- *
- * The criteria for SSR optimizability is quite a bit looser than static tree
- * detection (which is designed for client re-render). In SSR we bail only for
- * components/slots/custom directives.
- */
-
-// optimizability constants
-var optimizability = {
-  FALSE: 0,    // whole sub tree un-optimizable
-  FULL: 1,     // whole sub tree optimizable
-  SELF: 2,     // self optimizable but has some un-optimizable children
-  CHILDREN: 3, // self un-optimizable but have fully optimizable children
-  PARTIAL: 4   // self un-optimizable with some un-optimizable children
-};
-
-var isPlatformReservedTag$1;
-
-function optimize$1 (root, options) {
-  if (!root) { return }
-  isPlatformReservedTag$1 = options.isReservedTag || no;
-  walk(root, true);
-}
-
-function walk (node, isRoot) {
-  if (isUnOptimizableTree(node)) {
-    node.ssrOptimizability = optimizability.FALSE;
-    return
-  }
-  // root node or nodes with custom directives should always be a VNode
-  var selfUnoptimizable = isRoot || hasCustomDirective(node);
-  var check = function (child) {
-    if (child.ssrOptimizability !== optimizability.FULL) {
-      node.ssrOptimizability = selfUnoptimizable
-        ? optimizability.PARTIAL
-        : optimizability.SELF;
+    // v-bind="object"
+    if ((binding = el.attrsMap['v-bind'])) {
+      segments.push({ type: EXPRESSION, value: ("_ssrAttrs(" + binding + ")") });
     }
-  };
-  if (selfUnoptimizable) {
-    node.ssrOptimizability = optimizability.CHILDREN;
-  }
-  if (node.type === 1) {
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      walk(child);
-      check(child);
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        walk(block, isRoot);
-        check(block);
-      }
+    // v-bind.prop="object"
+    if ((binding = el.attrsMap['v-bind.prop'])) {
+      segments.push({ type: EXPRESSION, value: ("_ssrDOMProps(" + binding + ")") });
     }
-    if (node.ssrOptimizability == null ||
-      (!isRoot && (node.attrsMap['v-html'] || node.attrsMap['v-text']))
-    ) {
-      node.ssrOptimizability = optimizability.FULL;
-    } else {
-      node.children = optimizeSiblings(node);
+    // class
+    if (el.staticClass || el.classBinding) {
+      segments.push.apply(
+        segments,
+        genClassSegments(el.staticClass, el.classBinding)
+      );
     }
-  } else {
-    node.ssrOptimizability = optimizability.FULL;
-  }
-}
-
-function optimizeSiblings (el) {
-  var children = el.children;
-  var optimizedChildren = [];
-
-  var currentOptimizableGroup = [];
-  var pushGroup = function () {
-    if (currentOptimizableGroup.length) {
-      optimizedChildren.push({
-        type: 1,
-        parent: el,
-        tag: 'template',
-        attrsList: [],
-        attrsMap: {},
-        children: currentOptimizableGroup,
-        ssrOptimizability: optimizability.FULL
-      });
+    // style & v-show
+    if (el.staticStyle || el.styleBinding || el.attrsMap['v-show']) {
+      segments.push.apply(
+        segments,
+        genStyleSegments(
+          el.attrsMap.style,
+          el.staticStyle,
+          el.styleBinding,
+          el.attrsMap['v-show']
+        )
+      );
     }
-    currentOptimizableGroup = [];
-  };
-
-  for (var i = 0; i < children.length; i++) {
-    var c = children[i];
-    if (c.ssrOptimizability === optimizability.FULL) {
-      currentOptimizableGroup.push(c);
-    } else {
-      // wrap fully-optimizable adjacent siblings inside a template tag
-      // so that they can be optimized into a single ssrNode by codegen
-      pushGroup();
-      optimizedChildren.push(c);
+    // _scopedId
+    if (state.options.scopeId) {
+      segments.push({ type: RAW, value: (" " + (state.options.scopeId)) });
     }
+    segments.push({ type: RAW, value: ">" });
+    return segments
   }
-  pushGroup();
-  return optimizedChildren
-}
 
-function isUnOptimizableTree (node) {
-  if (node.type === 2 || node.type === 3) { // text or expression
-    return false
-  }
-  return (
-    isBuiltInTag(node.tag) || // built-in (slot, component)
-    !isPlatformReservedTag$1(node.tag) || // custom component
-    !!node.component || // "is" component
-    isSelectWithModel(node) // <select v-model> requires runtime inspection
-  )
-}
-
-var isBuiltInDir = makeMap('text,html,show,on,bind,model,pre,cloak,once');
-
-function hasCustomDirective (node) {
-  return (
-    node.type === 1 &&
-    node.directives &&
-    node.directives.some(function (d) { return !isBuiltInDir(d.name); })
-  )
-}
-
-// <select v-model> cannot be optimized because it requires a runtime check
-// to determine proper selected option
-function isSelectWithModel (node) {
-  return (
-    node.type === 1 &&
-    node.tag === 'select' &&
-    node.directives != null &&
-    node.directives.some(function (d) { return d.name === 'model'; })
-  )
-}
-
-/*  */
-
-// The SSR codegen is essentially extending the default codegen to handle
-// SSR-optimizable nodes and turn them into string render fns. In cases where
-// a node is not optimizable it simply falls back to the default codegen.
-
-// segment types
-var RAW = 0;
-var INTERPOLATION = 1;
-var EXPRESSION = 2;
-
-function generate$1 (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genSSRElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genSSRElement (el, state) {
-  if (el.for && !el.forProcessed) {
-    return genFor(el, state, genSSRElement)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state, genSSRElement)
-  } else if (el.tag === 'template' && !el.slotTarget) {
-    return el.ssrOptimizability === optimizability.FULL
-      ? genChildrenAsStringNode(el, state)
-      : genSSRChildren(el, state) || 'void 0'
-  }
-
-  switch (el.ssrOptimizability) {
-    case optimizability.FULL:
-      // stringify whole tree
-      return genStringElement(el, state)
-    case optimizability.SELF:
-      // stringify self and check children
-      return genStringElementWithChildren(el, state)
-    case optimizability.CHILDREN:
-      // generate self as VNode and stringify children
-      return genNormalElement(el, state, true)
-    case optimizability.PARTIAL:
-      // generate self as VNode and check children
-      return genNormalElement(el, state, false)
-    default:
-      // bail whole tree
-      return genElement(el, state)
-  }
-}
-
-function genNormalElement (el, state, stringifyChildren) {
-  var data = el.plain ? undefined : genData$2(el, state);
-  var children = stringifyChildren
-    ? ("[" + (genChildrenAsStringNode(el, state)) + "]")
-    : genSSRChildren(el, state, true);
-  return ("_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")")
-}
-
-function genSSRChildren (el, state, checkSkip) {
-  return genChildren(el, state, checkSkip, genSSRElement, genSSRNode)
-}
-
-function genSSRNode (el, state) {
-  return el.type === 1
-    ? genSSRElement(el, state)
-    : genText(el)
-}
-
-function genChildrenAsStringNode (el, state) {
-  return el.children.length
-    ? ("_ssrNode(" + (flattenSegments(childrenToSegments(el, state))) + ")")
-    : ''
-}
-
-function genStringElement (el, state) {
-  return ("_ssrNode(" + (elementToString(el, state)) + ")")
-}
-
-function genStringElementWithChildren (el, state) {
-  var children = genSSRChildren(el, state, true);
-  return ("_ssrNode(" + (flattenSegments(elementToOpenTagSegments(el, state))) + ",\"</" + (el.tag) + ">\"" + (children ? ("," + children) : '') + ")")
-}
-
-function elementToString (el, state) {
-  return ("(" + (flattenSegments(elementToSegments(el, state))) + ")")
-}
-
-function elementToSegments (el, state) {
-  // v-for / v-if
-  if (el.for && !el.forProcessed) {
-    el.forProcessed = true;
-    return [{
-      type: EXPRESSION,
-      value: genFor(el, state, elementToString, '_ssrList')
-    }]
-  } else if (el.if && !el.ifProcessed) {
-    el.ifProcessed = true;
-    return [{
-      type: EXPRESSION,
-      value: genIf(el, state, elementToString, '"<!---->"')
-    }]
-  } else if (el.tag === 'template') {
-    return childrenToSegments(el, state)
-  }
-
-  var openSegments = elementToOpenTagSegments(el, state);
-  var childrenSegments = childrenToSegments(el, state);
-  var ref = state.options;
-  var isUnaryTag = ref.isUnaryTag;
-  var close = (isUnaryTag && isUnaryTag(el.tag))
-    ? []
-    : [{ type: RAW, value: ("</" + (el.tag) + ">") }];
-  return openSegments.concat(childrenSegments, close)
-}
-
-function elementToOpenTagSegments (el, state) {
-  applyModelTransform(el, state);
-  var binding;
-  var segments = [{ type: RAW, value: ("<" + (el.tag)) }];
-  // attrs
-  if (el.attrs) {
-    segments.push.apply(segments, genAttrSegments(el.attrs));
-  }
-  // domProps
-  if (el.props) {
-    segments.push.apply(segments, genDOMPropSegments(el.props, el.attrs));
-  }
-  // v-bind="object"
-  if ((binding = el.attrsMap['v-bind'])) {
-    segments.push({ type: EXPRESSION, value: ("_ssrAttrs(" + binding + ")") });
-  }
-  // v-bind.prop="object"
-  if ((binding = el.attrsMap['v-bind.prop'])) {
-    segments.push({ type: EXPRESSION, value: ("_ssrDOMProps(" + binding + ")") });
-  }
-  // class
-  if (el.staticClass || el.classBinding) {
-    segments.push.apply(
-      segments,
-      genClassSegments(el.staticClass, el.classBinding)
-    );
-  }
-  // style & v-show
-  if (el.staticStyle || el.styleBinding || el.attrsMap['v-show']) {
-    segments.push.apply(
-      segments,
-      genStyleSegments(
-        el.attrsMap.style,
-        el.staticStyle,
-        el.styleBinding,
-        el.attrsMap['v-show']
-      )
-    );
-  }
-  // _scopedId
-  if (state.options.scopeId) {
-    segments.push({ type: RAW, value: (" " + (state.options.scopeId)) });
-  }
-  segments.push({ type: RAW, value: ">" });
-  return segments
-}
-
-function childrenToSegments (el, state) {
-  var binding;
-  if ((binding = el.attrsMap['v-html'])) {
-    return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
-  }
-  if ((binding = el.attrsMap['v-text'])) {
-    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
-  }
-  if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
-    return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
-  }
-  return el.children
-    ? nodesToSegments(el.children, state)
-    : []
-}
-
-function nodesToSegments (
-  children,
-  state
-) {
-  var segments = [];
-  for (var i = 0; i < children.length; i++) {
-    var c = children[i];
-    if (c.type === 1) {
-      segments.push.apply(segments, elementToSegments(c, state));
-    } else if (c.type === 2) {
-      segments.push({ type: INTERPOLATION, value: c.expression });
-    } else if (c.type === 3) {
-      segments.push({ type: RAW, value: escape(c.text) });
-    }
-  }
-  return segments
-}
-
-function flattenSegments (segments) {
-  var mergedSegments = [];
-  var textBuffer = '';
-
-  var pushBuffer = function () {
-    if (textBuffer) {
-      mergedSegments.push(JSON.stringify(textBuffer));
-      textBuffer = '';
+  function childrenToSegments (el, state) {
+    var binding;
+    if ((binding = el.attrsMap['v-html'])) {
+      return [{ type: EXPRESSION, value: ("_s(" + binding + ")") }]
     }
-  };
+    if ((binding = el.attrsMap['v-text'])) {
+      return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+    }
+    if (el.tag === 'textarea' && (binding = el.attrsMap['v-model'])) {
+      return [{ type: INTERPOLATION, value: ("_s(" + binding + ")") }]
+    }
+    return el.children
+      ? nodesToSegments(el.children, state)
+      : []
+  }
 
-  for (var i = 0; i < segments.length; i++) {
-    var s = segments[i];
-    if (s.type === RAW) {
-      textBuffer += s.value;
-    } else if (s.type === INTERPOLATION) {
-      pushBuffer();
-      mergedSegments.push(("_ssrEscape(" + (s.value) + ")"));
-    } else if (s.type === EXPRESSION) {
-      pushBuffer();
-      mergedSegments.push(("(" + (s.value) + ")"));
+  function nodesToSegments (
+    children,
+    state
+  ) {
+    var segments = [];
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (c.type === 1) {
+        segments.push.apply(segments, elementToSegments(c, state));
+      } else if (c.type === 2) {
+        segments.push({ type: INTERPOLATION, value: c.expression });
+      } else if (c.type === 3) {
+        segments.push({ type: RAW, value: escape(c.text) });
+      }
     }
+    return segments
   }
-  pushBuffer();
 
-  return mergedSegments.join('+')
-}
+  function flattenSegments (segments) {
+    var mergedSegments = [];
+    var textBuffer = '';
 
-/*  */
+    var pushBuffer = function () {
+      if (textBuffer) {
+        mergedSegments.push(JSON.stringify(textBuffer));
+        textBuffer = '';
+      }
+    };
+
+    for (var i = 0; i < segments.length; i++) {
+      var s = segments[i];
+      if (s.type === RAW) {
+        textBuffer += s.value;
+      } else if (s.type === INTERPOLATION) {
+        pushBuffer();
+        mergedSegments.push(("_ssrEscape(" + (s.value) + ")"));
+      } else if (s.type === EXPRESSION) {
+        pushBuffer();
+        mergedSegments.push(("(" + (s.value) + ")"));
+      }
+    }
+    pushBuffer();
 
-var createCompiler$1 = createCompilerCreator(function baseCompile (
-  template,
-  options
-) {
-  var ast = parse(template.trim(), options);
-  optimize$1(ast, options);
-  var code = generate$1(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
+    return mergedSegments.join('+')
   }
-});
 
-/*  */
+  /*  */
+
+  var createCompiler$1 = createCompilerCreator(function baseCompile (
+    template,
+    options
+  ) {
+    var ast = parse(template.trim(), options);
+    optimize$1(ast, options);
+    var code = generate$1(ast, options);
+    return {
+      ast: ast,
+      render: code.render,
+      staticRenderFns: code.staticRenderFns
+    }
+  });
+
+  /*  */
 
-var ref$1 = createCompiler$1(baseOptions);
-var compile$1 = ref$1.compile;
-var compileToFunctions$1 = ref$1.compileToFunctions;
+  var ref$1 = createCompiler$1(baseOptions);
+  var compile$1 = ref$1.compile;
+  var compileToFunctions$1 = ref$1.compileToFunctions;
 
-/*  */
+  /*  */
 
-exports.parseComponent = parseComponent;
-exports.compile = compile;
-exports.compileToFunctions = compileToFunctions;
-exports.ssrCompile = compile$1;
-exports.ssrCompileToFunctions = compileToFunctions$1;
+  exports.parseComponent = parseComponent;
+  exports.compile = compile;
+  exports.compileToFunctions = compileToFunctions;
+  exports.ssrCompile = compile$1;
+  exports.ssrCompileToFunctions = compileToFunctions$1;
 
-Object.defineProperty(exports, '__esModule', { value: true });
+  Object.defineProperty(exports, '__esModule', { value: true });
 
 })));
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 3456829f17b..489c6b5e556 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -11,20 +11,14 @@ var he = _interopDefault(require('he'));
 
 var emptyObject = Object.freeze({});
 
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
 function isUndef (v) {
   return v === undefined || v === null
 }
 
-
-
-
-
-
-
 /**
- * Check if value is primitive
+ * Check if value is primitive.
  */
 function isPrimitive (value) {
   return (
@@ -46,7 +40,7 @@ function isObject (obj) {
 }
 
 /**
- * Get the raw type string of a value e.g. [object Object]
+ * Get the raw type string of a value, e.g., [object Object].
  */
 var _toString = Object.prototype.toString;
 
@@ -62,8 +56,6 @@ function isPlainObject (obj) {
   return _toString.call(obj) === '[object Object]'
 }
 
-
-
 /**
  * Check if val is a valid array index.
  */
@@ -72,17 +64,6 @@ function isValidArrayIndex (val) {
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
-/**
- * Convert a value to a string that is actually rendered.
- */
-
-
-/**
- * Convert a input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-
-
 /**
  * Make a map and return a function for checking if a key
  * is in that map.
@@ -107,12 +88,12 @@ function makeMap (
 var isBuiltInTag = makeMap('slot,component', true);
 
 /**
- * Check if a attribute is a reserved attribute.
+ * Check if an attribute is a reserved attribute.
  */
 var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
 
 /**
- * Remove an item from an array
+ * Remove an item from an array.
  */
 function remove (arr, item) {
   if (arr.length) {
@@ -124,7 +105,7 @@ function remove (arr, item) {
 }
 
 /**
- * Check whether the object has the property.
+ * Check whether an object has the property.
  */
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 function hasOwn (obj, key) {
@@ -151,18 +132,11 @@ var camelize = cached(function (str) {
 });
 
 /**
- * Capitalize a string.
- */
-
-
-
-
-/**
- * Simple bind polyfill for environments that do not support it... e.g.
- * PhantomJS 1.x. Technically we don't need this anymore since native bind is
- * now more performant in most browsers, but removing it would be breaking for
- * code that was able to run in PhantomJS 1.x, so this must be kept for
- * backwards compatibility.
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
  */
 
 /* istanbul ignore next */
@@ -188,11 +162,6 @@ var bind = Function.prototype.bind
   ? nativeBind
   : polyfillBind;
 
-/**
- * Convert an Array-like object to a real Array.
- */
-
-
 /**
  * Mix properties into target object.
  */
@@ -203,15 +172,12 @@ function extend (to, _from) {
   return to
 }
 
-/**
- * Merge an Array of Objects into a single Object.
- */
-
+/* eslint-disable no-unused-vars */
 
 /**
  * Perform no operation.
  * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
  */
 function noop (a, b, c) {}
 
@@ -220,13 +186,15 @@ function noop (a, b, c) {}
  */
 var no = function (a, b, c) { return false; };
 
+/* eslint-enable no-unused-vars */
+
 /**
- * Return same value
+ * Return the same value.
  */
 var identity = function (_) { return _; };
 
 /**
- * Generate a static keys string from compiler modules.
+ * Generate a string containing static keys from compiler modules.
  */
 function genStaticKeys (modules) {
   return modules.reduce(function (keys, m) {
@@ -234,18 +202,6 @@ function genStaticKeys (modules) {
   }, []).join(',')
 }
 
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-
-
-
-
-/**
- * Ensure a function is called only once.
- */
-
 /*  */
 
 var isUnaryTag = makeMap(
@@ -273,13 +229,6 @@ var isNonPhrasingTag = makeMap(
  * Not type-checking this file because it's mostly vendor code.
  */
 
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
@@ -294,11 +243,6 @@ var doctype = /^<!DOCTYPE [^>]+>/i;
 var comment = /^<!\--/;
 var conditionalComment = /^<!\[/;
 
-var IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
 // Special Elements (can contain anything)
 var isPlainTextElement = makeMap('script,style,textarea', true);
 var reCache = {};
@@ -379,7 +323,7 @@ function parseHTML (html, options) {
         var startTagMatch = parseStartTag();
         if (startTagMatch) {
           handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
             advance(1);
           }
           continue
@@ -496,12 +440,6 @@ function parseHTML (html, options) {
     var attrs = new Array(l);
     for (var i = 0; i < l; i++) {
       var args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
       var value = args[3] || args[4] || args[5] || '';
       var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
         ? options.shouldDecodeNewlinesForHref
@@ -527,12 +465,9 @@ function parseHTML (html, options) {
     if (start == null) { start = index; }
     if (end == null) { end = index; }
 
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
     // Find the closest opened tag of the same type
     if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
       for (pos = stack.length - 1; pos >= 0; pos--) {
         if (stack[pos].lowerCasedTag === lowerCasedTagName) {
           break
@@ -657,14 +592,18 @@ function parseComponent (
     }
   }
 
-  function end (tag, start, end) {
+  function end (tag, start) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start;
-      var text = deindent(content.slice(currentBlock.start, currentBlock.end));
+      var text = content.slice(currentBlock.start, currentBlock.end);
       // pad content so that linters and pre-processors can output correct
       // line numbers in errors and warnings
-      if (currentBlock.type !== 'template' && options.pad) {
+      if (options.pad) {
         text = padContent(currentBlock, options.pad) + text;
+      } else {
+        // avoid to deindent if pad option is specified
+        // to retain original source position.
+        text = deindent(text);
       }
       currentBlock.content = text;
       currentBlock = null;
@@ -694,11 +633,6 @@ function parseComponent (
 
 /*  */
 
-/**
- * Check if a string starts with $ or _
- */
-
-
 /**
  * Define a property.
  */
@@ -730,15 +664,11 @@ var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
-
-
 if (inBrowser) {
   try {
     var opts = {};
     Object.defineProperty(opts, 'passive', ({
       get: function get () {
-        /* istanbul ignore next */
-        
       }
     })); // https://github.com/facebook/flow/issues/285
     window.addEventListener('test-passive', null, opts);
@@ -754,7 +684,7 @@ var isServerRendering = function () {
     if (!inBrowser && !inWeex && typeof global !== 'undefined') {
       // detect presence of vue-server-renderer and avoid
       // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
     } else {
       _isServer = false;
     }
@@ -774,13 +704,29 @@ var hasSymbol =
   typeof Symbol !== 'undefined' && isNative(Symbol) &&
   typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
 
+var _Set;
 /* istanbul ignore if */ // $flow-disable-line
 if (typeof Set !== 'undefined' && isNative(Set)) {
   // use native Set when available.
-  
+  _Set = Set;
 } else {
   // a non-standard Set polyfill that only works with primitive keys.
-  
+  _Set = /*@__PURE__*/(function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
 }
 
 var ASSET_TYPES = [
@@ -805,6 +751,8 @@ var LIFECYCLE_HOOKS = [
 
 /*  */
 
+
+
 var config = ({
   /**
    * Option merge strategies (used in core/util/options)
@@ -887,11 +835,17 @@ var config = ({
    */
   mustUseProp: no,
 
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
   /**
    * Exposed for legacy reasons
    */
   _lifecycleHooks: LIFECYCLE_HOOKS
-})
+});
 
 /*  */
 
@@ -910,9 +864,7 @@ if (process.env.NODE_ENV !== 'production') {
   warn = function (msg, vm) {
     var trace = vm ? generateComponentTrace(vm) : '';
 
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
+    if (hasConsole && (!config.silent)) {
       console.error(("[Vue warn]: " + msg + trace));
     }
   };
@@ -989,7 +941,6 @@ if (process.env.NODE_ENV !== 'production') {
 
 /*  */
 
-
 var uid = 0;
 
 /**
@@ -1018,6 +969,12 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
+  if (process.env.NODE_ENV !== 'production' && !config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -1075,15 +1032,6 @@ prototypeAccessors.child.get = function () {
 
 Object.defineProperties( VNode.prototype, prototypeAccessors );
 
-
-
-
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-
 /*
  * not type checking this file because flow doesn't play well with
  * dynamically accessing methods on Array prototype
@@ -1141,8 +1089,6 @@ var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
  */
 var shouldObserve = true;
 
-
-
 /**
  * Observer class that is attached to each observed
  * object. Once attached, the observer converts the target
@@ -1155,10 +1101,11 @@ var Observer = function Observer (value) {
   this.vmCount = 0;
   def(value, '__ob__', this);
   if (Array.isArray(value)) {
-    var augment = hasProto
-      ? protoAugment
-      : copyAugment;
-    augment(value, arrayMethods, arrayKeys);
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
     this.observeArray(value);
   } else {
     this.walk(value);
@@ -1166,14 +1113,14 @@ var Observer = function Observer (value) {
 };
 
 /**
- * Walk through each property and convert them into
+ * Walk through all properties and convert them into
  * getter/setters. This method should only be called when
  * value type is Object.
  */
 Observer.prototype.walk = function walk (obj) {
   var keys = Object.keys(obj);
   for (var i = 0; i < keys.length; i++) {
-    defineReactive(obj, keys[i]);
+    defineReactive$$1(obj, keys[i]);
   }
 };
 
@@ -1189,17 +1136,17 @@ Observer.prototype.observeArray = function observeArray (items) {
 // helpers
 
 /**
- * Augment an target Object or Array by intercepting
+ * Augment a target Object or Array by intercepting
  * the prototype chain using __proto__
  */
-function protoAugment (target, src, keys) {
+function protoAugment (target, src) {
   /* eslint-disable no-proto */
   target.__proto__ = src;
   /* eslint-enable no-proto */
 }
 
 /**
- * Augment an target Object or Array by defining
+ * Augment a target Object or Array by defining
  * hidden properties.
  */
 /* istanbul ignore next */
@@ -1240,7 +1187,7 @@ function observe (value, asRootData) {
 /**
  * Define a reactive property on an Object.
  */
-function defineReactive (
+function defineReactive$$1 (
   obj,
   key,
   val,
@@ -1288,6 +1235,8 @@ function defineReactive (
       if (process.env.NODE_ENV !== 'production' && customSetter) {
         customSetter();
       }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
       if (setter) {
         setter.call(obj, newVal);
       } else {
@@ -1331,16 +1280,11 @@ function set (target, key, val) {
     target[key] = val;
     return val
   }
-  defineReactive(ob.value, key, val);
+  defineReactive$$1(ob.value, key, val);
   ob.dep.notify();
   return val
 }
 
-/**
- * Delete a property and trigger change if necessary.
- */
-
-
 /**
  * Collect dependencies on array elements when the array is touched, since
  * we cannot intercept array element access like property getters.
@@ -1392,7 +1336,11 @@ function mergeData (to, from) {
     fromVal = from[key];
     if (!hasOwn(to, key)) {
       set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
       mergeData(toVal, fromVal);
     }
   }
@@ -1580,8 +1528,6 @@ var defaultStrat = function (parentVal, childVal) {
     : childVal
 };
 
-
-
 function assertObjectType (name, value, vm) {
   if (!isPlainObject(value)) {
     warn(
@@ -1592,26 +1538,14 @@ function assertObjectType (name, value, vm) {
   }
 }
 
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-
 /*  */
 
 /*  */
 
 /*  */
-/* globals MessageChannel */
 
 var callbacks = [];
+
 function flushCallbacks () {
   var copies = callbacks.slice(0);
   callbacks.length = 0;
@@ -1625,34 +1559,18 @@ function flushCallbacks () {
 // in IE. The only polyfill that consistently queues the callback after all DOM
 // events triggered in the same loop is by using MessageChannel.
 /* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  
-} else if (typeof MessageChannel !== 'undefined' && (
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
   isNative(MessageChannel) ||
   // PhantomJS
   MessageChannel.toString() === '[object MessageChannelConstructor]'
 )) {
   var channel = new MessageChannel();
   channel.port1.onmessage = flushCallbacks;
-  
-} else {
-  /* istanbul ignore next */
-  
 }
 
 // Determine microtask defer implementation.
 /* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  
-} else {
-  // fallback to macro
-  
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
+if (typeof Promise !== 'undefined' && isNative(Promise)) ;
 
 /*  */
 
@@ -1688,8 +1606,6 @@ var isBooleanAttr = makeMap(
 
 /*  */
 
-
-
 var isHTMLTag = makeMap(
   'html,body,base,head,link,meta,style,title,' +
   'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
@@ -1730,16 +1646,10 @@ function getTagNamespace (tag) {
   }
 }
 
-
-
 var isTextInputType = makeMap('text,number,password,search,email,tel,url');
 
 /*  */
 
-/**
- * Query an element selector if it's not an element already.
- */
-
 /*  */
 
 var validDivisionCharRE = /[\w).+\-_$\]]/;
@@ -1840,7 +1750,7 @@ function wrapFilter (exp, filter) {
 
 /*  */
 
-var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
 var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
 
 var buildRegex = cached(function (delimiters) {
@@ -1950,6 +1860,18 @@ function addHandler (
     );
   }
 
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
@@ -1965,18 +1887,6 @@ function addHandler (
     name = '&' + name; // mark the event as passive
   }
 
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
   var events;
   if (modifiers.native) {
     delete modifiers.native;
@@ -2088,7 +1998,7 @@ var klass = {
   staticKeys: ['staticClass'],
   transformNode: transformNode,
   genData: genData
-}
+};
 
 /*  */
 
@@ -2105,14 +2015,6 @@ var parseStyleText = cached(function (cssText) {
   return res
 });
 
-// normalize possible array / string values into Object
-
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-
 /*  */
 
 function transformNode$1 (el, options) {
@@ -2155,7 +2057,7 @@ var style = {
   staticKeys: ['staticStyle'],
   transformNode: transformNode$1,
   genData: genData$1
-}
+};
 
 /*  */
 
@@ -2221,12 +2123,7 @@ function genAssignmentCode (
  *
  */
 
-var len;
-var str;
-var chr;
-var index;
-var expressionPos;
-var expressionEndPos;
+var len, str, chr, index, expressionPos, expressionEndPos;
 
 
 
@@ -2314,7 +2211,7 @@ function parseString (chr) {
 
 var onRE = /^@|^v-on:/;
 var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([^]*?)\s+(?:in|of)\s+([^]*)/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
@@ -2499,7 +2396,8 @@ function parse (
           processIfConditions(element, currentParent);
         } else if (element.slotScope) { // scoped slot
           currentParent.plain = false;
-          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
           currentParent.children.push(element);
           element.parent = currentParent;
@@ -2623,8 +2521,20 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if (process.env.NODE_ENV !== 'production' && el.tag === 'template') {
-      warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+    if (process.env.NODE_ENV !== 'production') {
+      if (el.tag === 'template') {
+        warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$1(
+            "Do not use v-for index as key on <transtion-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
     }
     el.key = exp;
   }
@@ -2662,7 +2572,7 @@ function parseFor (exp) {
   var alias = inMatch[1].trim().replace(stripParensRE, '');
   var iteratorMatch = alias.match(forIteratorRE);
   if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '');
+    res.alias = alias.replace(forIteratorRE, '').trim();
     res.iterator1 = iteratorMatch[1].trim();
     if (iteratorMatch[2]) {
       res.iterator2 = iteratorMatch[2].trim();
@@ -2815,6 +2725,14 @@ function processAttrs (el) {
         name = name.replace(bindRE, '');
         value = parseFilters(value);
         isProp = false;
+        if (
+          process.env.NODE_ENV !== 'production' &&
+          value.trim().length === 0
+        ) {
+          warn$1(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
         if (modifiers) {
           if (modifiers.prop) {
             isProp = true;
@@ -2963,16 +2881,6 @@ function checkForAliasModel (el, value) {
 
 /*  */
 
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
 function preTransformNode (el, options) {
   if (el.tag === 'input') {
     var map = el.attrsMap;
@@ -3041,13 +2949,13 @@ function cloneASTElement (el) {
 
 var model = {
   preTransformNode: preTransformNode
-}
+};
 
 var modules = [
   klass,
   style,
   model
-]
+];
 
 /*  */
 
@@ -3057,7 +2965,6 @@ var warn$2;
 // so we used some reserved tokens during compile.
 var RANGE_TOKEN = '__r';
 
-
 function model$1 (
   el,
   dir,
@@ -3241,7 +3148,7 @@ var directives = {
   model: model$1,
   text: text,
   html: html
-}
+};
 
 /*  */
 
@@ -3438,8 +3345,7 @@ var modifierCode = {
 
 function genHandlers (
   events,
-  isNative,
-  warn
+  isNative
 ) {
   var res = isNative ? 'nativeOn:{' : 'on:{';
   for (var name in events) {
@@ -3467,7 +3373,6 @@ function genHandler (
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    /* istanbul ignore if */
     return ("function($event){" + (handler.value) + "}") // inline statement
   } else {
     var code = '';
@@ -3504,7 +3409,6 @@ function genHandler (
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
         : handler.value;
-    /* istanbul ignore if */
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -3553,10 +3457,14 @@ var baseDirectives = {
   on: on,
   bind: bind$1,
   cloak: noop
-}
+};
 
 /*  */
 
+
+
+
+
 var CodegenState = function CodegenState (options) {
   this.options = options;
   this.warn = options.warn || baseWarn;
@@ -3564,9 +3472,10 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !isReservedTag(el.tag); };
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
   this.onceId = 0;
   this.staticRenderFns = [];
+  this.pre = false;
 };
 
 
@@ -3584,6 +3493,10 @@ function generate (
 }
 
 function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
   if (el.staticRoot && !el.staticProcessed) {
     return genStatic(el, state)
   } else if (el.once && !el.onceProcessed) {
@@ -3592,7 +3505,7 @@ function genElement (el, state) {
     return genFor(el, state)
   } else if (el.if && !el.ifProcessed) {
     return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
     return genChildren(el, state) || 'void 0'
   } else if (el.tag === 'slot') {
     return genSlot(el, state)
@@ -3602,7 +3515,10 @@ function genElement (el, state) {
     if (el.component) {
       code = genComponent(el.component, el, state);
     } else {
-      var data = el.plain ? undefined : genData$2(el, state);
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
 
       var children = el.inlineTemplate ? null : genChildren(el, state, true);
       code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
@@ -3618,7 +3534,15 @@ function genElement (el, state) {
 // hoist static sub-trees out
 function genStatic (el, state) {
   el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
   state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
   return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
 }
 
@@ -3759,10 +3683,10 @@ function genData$2 (el, state) {
   }
   // event handlers
   if (el.events) {
-    data += (genHandlers(el.events, false, state.warn)) + ",";
+    data += (genHandlers(el.events, false)) + ",";
   }
   if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true, state.warn)) + ",";
+    data += (genHandlers(el.nativeEvents, true)) + ",";
   }
   // slot target
   // only for non-scoped slots
@@ -3854,7 +3778,7 @@ function genScopedSlot (
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
       ? el.if
-        ? ((el.if) + "?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + key + ",fn:" + fn + "}")
@@ -3892,13 +3816,16 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      return (altGenElement || genElement)(el$1, state)
+      // because el may be a functional component and return an Array instead of a single root.
+      // In this case, just a simple normalization is needed
+      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
-    var normalizationType = checkSkip
+    var normalizationType$1 = checkSkip
       ? getNormalizationType(children, state.maybeComponent)
       : 0;
     var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType ? ("," + normalizationType) : ''))
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
   }
 }
 
@@ -3936,7 +3863,7 @@ function needsNormalization (el) {
 function genNode (node, state) {
   if (node.type === 1) {
     return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
+  } else if (node.type === 3 && node.isComment) {
     return genComment(node)
   } else {
     return genText(node)
@@ -4109,6 +4036,8 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+
+
 function createFunction (code, errors) {
   try {
     return new Function(code)
@@ -4309,6 +4238,7 @@ var isRenderableAttr = function (name) {
     name.indexOf('aria-') === 0
   )
 };
+
 var propsToAttrMap = {
   acceptCharset: 'accept-charset',
   className: 'class',
@@ -4333,6 +4263,11 @@ function escapeChar (a) {
 
 /*  */
 
+
+
+
+
+
 var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
 // let the model AST transform translate v-model into appropriate
@@ -4412,7 +4347,7 @@ function genClassSegments (
   classBinding
 ) {
   if (staticClass && !classBinding) {
-    return [{ type: RAW, value: (" class=" + staticClass) }]
+    return [{ type: RAW, value: (" class=\"" + (JSON.parse(staticClass)) + "\"") }]
   } else {
     return [{
       type: EXPRESSION,
@@ -4441,16 +4376,6 @@ function genStyleSegments (
 
 /*  */
 
-/**
- * In SSR, the vdom tree is generated only once and never patched, so
- * we can optimize most element / trees into plain string render functions.
- * The SSR optimizer walks the AST tree to detect optimizable elements and trees.
- *
- * The criteria for SSR optimizability is quite a bit looser than static tree
- * detection (which is designed for client re-render). In SSR we bail only for
- * components/slots/custom directives.
- */
-
 // optimizability constants
 var optimizability = {
   FALSE: 0,    // whole sub tree un-optimizable
@@ -4580,9 +4505,8 @@ function isSelectWithModel (node) {
 
 /*  */
 
-// The SSR codegen is essentially extending the default codegen to handle
-// SSR-optimizable nodes and turn them into string render fns. In cases where
-// a node is not optimizable it simply falls back to the default codegen.
+
+
 
 // segment types
 var RAW = 0;
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index a3d3192182d..e3ef321bf48 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.17-beta.0",
+  "version": "2.5.18-beta.0",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From e8031b4e68a060d4e559ec62f4350987e06dee9a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 2 Dec 2018 16:13:36 -0500
Subject: [PATCH 604/911] build: release v2.5.18-beta.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 47dc045cbca..e29a879d1ed 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.17-beta.0",
+  "version": "2.5.18-beta.0",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 0d7fb739257cc3d3fc1ea6127eb1089a762b220c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 3 Dec 2018 15:02:02 -0500
Subject: [PATCH 605/911] chore: update sponsors/backers [ci skip]

---
 BACKERS.md | 27 +++++++++++++++------------
 README.md  |  7 ++++++-
 2 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 94709825ac7..55ec1847ce3 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -194,6 +194,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.inkloop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkloop.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
@@ -315,14 +320,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 
 <!--50 start-->
 - Wasim Khamlichi
-- errorrik
+- errorrik 
 - Alex Balashov
 - Konstantin Levinski
 - Evan Leonardi
 - Ernest Sim
 - Blaise Laflamme
-- Dilettant
-- Sean Ferguson
+- Dilettant 
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -341,10 +345,10 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Kirk Lewis
 - Karol F
 - Miljan Aleksic
-- 叶解
+- 叶解 
 - Jake Ingman
 - Barbara Liau
-- 4
+- 4 
 - Jarek Tkaczyk
 - David Hess
 - Niannian Modisette
@@ -353,7 +357,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Duncan J Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Edithvale
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
 - Chengzhi Yin
@@ -394,20 +397,18 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Bohdan Kokotko
 - Donald Fischer
 - Alexander Weiher
-- Daniel Cook
 - Shinya Katayama
 - Jere Sjöroos
 - Wakana Seki
 - David Ang
-- Dom
+- Dom 
 - Ben Hong
 - David Kaplan
 - John Cleveland
 - Jaeyoung Lee
-- Amor
+- Amor 
 - Tom Ootes
 - Andy Foster
-- Blake Campbell
 - Joe Cochran
 - Matt Sencenbaugh
 - The Commission Cafe, LLC.
@@ -427,11 +428,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Rob Mellett
 - Abraham Arango
 - Marko Bošković
-- Andrej Noskaj
 - Ed Linklater
 - Garion Herman
 - Chris Bemister
 - Anfrew Willis
+- Carlos Adrián
+- Timothy J Bass
+- Yusuke Kawabata
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 6d589e4da06..804841186d7 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -199,6 +199,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.inkloop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkloop.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 448ba65d2b139b29f1e6891add9925ac22ffe10b Mon Sep 17 00:00:00 2001
From: Kael <kaelwd@gmail.com>
Date: Tue, 4 Dec 2018 12:31:39 +1100
Subject: [PATCH 606/911] fix(types): correct scopedSlot types (#9131)

see #8946
---
 types/test/options-test.ts | 17 +++++++++++++----
 types/vnode.d.ts           |  4 ++--
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 6c817e23d19..ec06f9b8252 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -1,5 +1,5 @@
 import Vue, { VNode } from "../index";
-import { AsyncComponent, ComponentOptions, FunctionalComponentOptions, Component } from "../index";
+import { ComponentOptions, Component } from "../index";
 import { CreateElement } from "../vue";
 
 interface MyComponent extends Vue {
@@ -297,6 +297,10 @@ Vue.component('component-with-scoped-slot', {
           // named scoped slot as vnode data
           item: (props: ScopedSlotProps) => [h('span', [props.msg])]
         }
+      }),
+      h('child', {
+        // Passing down all slots from parent
+        scopedSlots: this.$scopedSlots
       })
     ])
   },
@@ -315,13 +319,18 @@ Vue.component('component-with-scoped-slot', {
 Vue.component('narrow-array-of-vnode-type', {
   render (h): VNode {
     const slot = this.$scopedSlots.default!({})
-    if (typeof slot !== 'string') {
+    if (typeof slot === 'string') {
+      return h('span', slot)
+    } else if (Array.isArray(slot)) {
       const first = slot[0]
       if (!Array.isArray(first) && typeof first !== 'string') {
-        return first;
+        return first
+      } else {
+        return h()
       }
+    } else {
+      return slot
     }
-    return h();
   }
 })
 
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index fb18bb83286..6bc41352d02 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -1,6 +1,6 @@
 import { Vue } from "./vue";
 
-export type ScopedSlot = (props: any) => VNodeChildrenArrayContents | string;
+export type ScopedSlot = (props: any) => VNodeChildrenArrayContents | VNode | string;
 
 export type VNodeChildren = VNodeChildrenArrayContents | [ScopedSlot] | string;
 export interface VNodeChildrenArrayContents extends Array<VNode | string | VNodeChildrenArrayContents> {}
@@ -34,7 +34,7 @@ export interface VNodeComponentOptions {
 export interface VNodeData {
   key?: string | number;
   slot?: string;
-  scopedSlots?: { [key: string]: ScopedSlot };
+  scopedSlots?: { [key: string]: ScopedSlot | undefined };
   ref?: string;
   refInFor?: boolean;
   tag?: string;

From 1b4a8a0c1edaf9c7eb129ba61bca94ba607bbf56 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 4 Dec 2018 10:51:29 -0500
Subject: [PATCH 607/911] fix(compiler): fix codegen for v-for component inside
 template

fix #9142
---
 src/compiler/codegen/index.js              | 4 +---
 test/unit/modules/compiler/codegen.spec.js | 8 ++++++++
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index d5b0aa09bd0..3416f773d8c 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -406,9 +406,7 @@ export function genChildren (
       el.tag !== 'template' &&
       el.tag !== 'slot'
     ) {
-      // because el may be a functional component and return an Array instead of a single root.
-      // In this case, just a simple normalization is needed
-      const normalizationType = state.maybeComponent(el) ? `,1` : ``
+      const normalizationType = checkSkip && state.maybeComponent(el) ? `,1` : ``
       return `${(altGenElement || genElement)(el, state)}${normalizationType}`
     }
     const normalizationType = checkSkip
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 57caa60ada1..b3f5ba475c2 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -631,5 +631,13 @@ describe('codegen', () => {
       { isReservedTag }
     )
   })
+
+  // #9142
+  it('should compile single v-for component inside template', () => {
+    assertCodegen(
+      `<div><template v-if="ok"><foo v-for="i in 1" :key="i"></foo></template></div>`,
+      `with(this){return _c('div',[(ok)?_l((1),function(i){return _c('foo',{key:i})}):_e()],2)}`
+    )
+  })
 })
 /* eslint-enable quotes */

From 93850f49e31559c78dc91f5df9e756f424ba910a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 4 Dec 2018 11:00:09 -0500
Subject: [PATCH 608/911] chore: fix sponsor link

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 55ec1847ce3..2f493dad4dd 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -195,8 +195,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.inkloop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkloop.png">
+        <a href="https://www.inkoop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
         </a>
       </td>
     </tr><tr></tr>
diff --git a/README.md b/README.md
index 804841186d7..3cb536cfa84 100644
--- a/README.md
+++ b/README.md
@@ -200,8 +200,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.inkloop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkloop.png">
+        <a href="https://www.inkoop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
         </a>
       </td>
     </tr><tr></tr>

From f077ed17af14bb2675db64b2aa2d023769219624 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 5 Dec 2018 10:54:42 -0500
Subject: [PATCH 609/911] fix(ssr): fix ssr template publicPath generation

fix #9145
---
 src/server/template-renderer/index.js | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index 2c95e31fd5a..05ce8c49cf7 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -60,7 +60,10 @@ export default class TemplateRenderer {
     // extra functionality with client manifest
     if (options.clientManifest) {
       const clientManifest = this.clientManifest = options.clientManifest
-      this.publicPath = clientManifest.publicPath
+      // ensure publicPath ends with /
+      this.publicPath = clientManifest.publicPath === ''
+        ? ''
+        : clientManifest.publicPath.replace(/([^\/])$/, '$1/')
       // preload/prefetch directives
       this.preloadFiles = (clientManifest.initial || []).map(normalizeFile)
       this.prefetchFiles = (clientManifest.async || []).map(normalizeFile)
@@ -114,7 +117,7 @@ export default class TemplateRenderer {
     return (
       // render links for css files
       (cssFiles.length
-        ? cssFiles.map(({ file }) => `<link rel="stylesheet" href="${this.getPublicPath(file)}">`).join('')
+        ? cssFiles.map(({ file }) => `<link rel="stylesheet" href="${this.publicPath}${file}">`).join('')
         : '') +
       // context.styles is a getter exposed by vue-style-loader which contains
       // the inline component styles collected during SSR
@@ -153,7 +156,7 @@ export default class TemplateRenderer {
           extra = ` type="font/${extension}" crossorigin`
         }
         return `<link rel="preload" href="${
-          this.getPublicPath(file)
+          this.publicPath}${file
         }"${
           asType !== '' ? ` as="${asType}"` : ''
         }${
@@ -179,7 +182,7 @@ export default class TemplateRenderer {
         if (alreadyRendered(file)) {
           return ''
         }
-        return `<link rel="prefetch" href="${this.getPublicPath(file)}">`
+        return `<link rel="prefetch" href="${this.publicPath}${file}">`
       }).join('')
     } else {
       return ''
@@ -206,7 +209,7 @@ export default class TemplateRenderer {
       const async = (this.getUsedAsyncFiles(context) || []).filter(({ file }) => isJS(file))
       const needed = [initial[0]].concat(async || [], initial.slice(1))
       return needed.map(({ file }) => {
-        return `<script src="${this.getPublicPath(file)}" defer></script>`
+        return `<script src="${this.publicPath}${file}" defer></script>`
       }).join('')
     } else {
       return ''
@@ -228,10 +231,6 @@ export default class TemplateRenderer {
     }
     return new TemplateStream(this, this.parsedTemplate, context || {})
   }
-
-  getPublicPath (file: string) {
-    return path.posix.join(this.publicPath, file)
-  }
 }
 
 function normalizeFile (file: string): Resource {

From 0ed0aad77228b95e9a61a87386736938837527f8 Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Thu, 6 Dec 2018 04:26:58 +0800
Subject: [PATCH 610/911] fix: fix keyName checking for space and delete in
 IE11 (#9150)

fix #9112
---
 src/compiler/codegen/events.js             |  6 ++++--
 test/unit/modules/compiler/codegen.spec.js | 14 ++++++++++++--
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index d2001bb7954..7c4e72b82b0 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -22,13 +22,15 @@ const keyNames: { [key: string]: string | Array<string> } = {
   esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 }
 
 // #4868: modifiers that prevent the execution of the listener
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index b3f5ba475c2..8525e42421c 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -333,12 +333,22 @@ describe('codegen', () => {
     // multiple keycodes (delete)
     assertCodegen(
       '<input @input.delete="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
+    )
+    // multiple keycodes (esc)
+    assertCodegen(
+      '<input @input.esc="onInput">',
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"esc",27,$event.key,["Esc","Escape"]))return null;return onInput($event)}}})}`
+    )
+    // multiple keycodes (space)
+    assertCodegen(
+      '<input @input.space="onInput">',
+      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"space",32,$event.key,[" ","Spacebar"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (chained)
     assertCodegen(
       '<input @keydown.enter.delete="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
     )
     // number keycode
     assertCodegen(

From 8a2dbf50105ea729125a42fecfe2c2f0371d7836 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 5 Dec 2018 17:33:39 -0500
Subject: [PATCH 611/911] fix(transition-group): fix activeInstance regression

fix #9151
---
 src/core/instance/lifecycle.js                      | 13 ++++++++++---
 .../web/runtime/components/transition-group.js      |  3 +++
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 5521e03ed35..8d687b15725 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -21,6 +21,14 @@ import {
 export let activeInstance: any = null
 export let isUpdatingChildComponent: boolean = false
 
+export function setActiveInstance(vm: Component) {
+  const prevActiveInstance = activeInstance
+  activeInstance = vm
+  return () => {
+    activeInstance = prevActiveInstance
+  }
+}
+
 export function initLifecycle (vm: Component) {
   const options = vm.$options
 
@@ -52,8 +60,7 @@ export function lifecycleMixin (Vue: Class<Component>) {
     const vm: Component = this
     const prevEl = vm.$el
     const prevVnode = vm._vnode
-    const prevActiveInstance = activeInstance
-    activeInstance = vm
+    const restoreActiveInstance = setActiveInstance(vm)
     vm._vnode = vnode
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
@@ -64,7 +71,7 @@ export function lifecycleMixin (Vue: Class<Component>) {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode)
     }
-    activeInstance = prevActiveInstance
+    restoreActiveInstance()
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null
diff --git a/src/platforms/web/runtime/components/transition-group.js b/src/platforms/web/runtime/components/transition-group.js
index 1d960a208be..084f394cd0d 100644
--- a/src/platforms/web/runtime/components/transition-group.js
+++ b/src/platforms/web/runtime/components/transition-group.js
@@ -14,6 +14,7 @@
 import { warn, extend } from 'core/util/index'
 import { addClass, removeClass } from '../class-util'
 import { transitionProps, extractTransitionData } from './transition'
+import { setActiveInstance } from 'core/instance/lifecycle'
 
 import {
   hasTransition,
@@ -36,6 +37,7 @@ export default {
   beforeMount () {
     const update = this._update
     this._update = (vnode, hydrating) => {
+      const restoreActiveInstance = setActiveInstance(this)
       // force removing pass
       this.__patch__(
         this._vnode,
@@ -44,6 +46,7 @@ export default {
         true // removeOnly (!important, avoids unnecessary moves)
       )
       this._vnode = this.kept
+      restoreActiveInstance()
       update.call(this, vnode, hydrating)
     }
   },

From dfaf9e24361e10ae68ce3951eaf48262cf90f0ec Mon Sep 17 00:00:00 2001
From: Timur Kiyui <timur@linux.com>
Date: Wed, 5 Dec 2018 23:00:56 +0000
Subject: [PATCH 612/911] fix(types): type support for advanced async
 components (#8438)

---
 types/options.d.ts | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index f6d92b97a16..a65f088b8c6 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -15,12 +15,24 @@ export type Component<Data=DefaultData<never>, Methods=DefaultMethods<never>, Co
 interface EsModuleComponent {
   default: Component
 }
+                      
+export type AsyncComponent<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps>
+  = AsyncComponentPromise<Data, Methods, Computed, Props>
+  | AsyncComponentFactory<Data, Methods, Computed, Props>
 
-export type AsyncComponent<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps> = (
+export type AsyncComponentPromise<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps> = (
   resolve: (component: Component<Data, Methods, Computed, Props>) => void,
   reject: (reason?: any) => void
 ) => Promise<Component | EsModuleComponent> | void;
 
+export type AsyncComponentFactory<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps> = () => {
+  component: AsyncComponentPromise<Data, Methods, Computed, Props>;
+  loading?: Component | EsModuleComponent;
+  error?: Component | EsModuleComponent;
+  delay?: number;
+  timeout?: number;
+}
+
 /**
  * When the `Computed` type parameter on `ComponentOptions` is inferred,
  * it should have a property with the return type of every get-accessor.

From eb81ec213196ef9e286e34be3d542326f14a1910 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 7 Dec 2018 16:09:05 -0500
Subject: [PATCH 613/911] build: build 2.5.18

---
 dist/vue.common.dev.js                      | 11049 ++++++++++++++++++
 dist/vue.common.js                          |    29 +-
 dist/vue.common.prod.js                     |     6 +
 dist/vue.esm.browser.min.js                 |     6 +
 dist/vue.esm.js                             |    29 +-
 dist/vue.js                                 |    29 +-
 dist/vue.min.js                             |     4 +-
 dist/vue.runtime.common.dev.js              |  8084 +++++++++++++
 dist/vue.runtime.common.js                  |    19 +-
 dist/vue.runtime.common.prod.js             |     6 +
 dist/vue.runtime.esm.js                     |    19 +-
 dist/vue.runtime.js                         |    19 +-
 dist/vue.runtime.min.js                     |     4 +-
 packages/vue-server-renderer/basic.js       |    10 +-
 packages/vue-server-renderer/build.js       |    27 +-
 packages/vue-server-renderer/package.json   |     2 +-
 packages/vue-template-compiler/browser.js   |    10 +-
 packages/vue-template-compiler/build.js     |    10 +-
 packages/vue-template-compiler/package.json |     2 +-
 19 files changed, 19284 insertions(+), 80 deletions(-)
 create mode 100644 dist/vue.common.dev.js
 create mode 100644 dist/vue.common.prod.js
 create mode 100644 dist/vue.esm.browser.min.js
 create mode 100644 dist/vue.runtime.common.dev.js
 create mode 100644 dist/vue.runtime.common.prod.js

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
new file mode 100644
index 00000000000..bd155364060
--- /dev/null
+++ b/dist/vue.common.dev.js
@@ -0,0 +1,11049 @@
+/*!
+ * Vue.js v2.5.18-beta.0
+ * (c) 2014-2018 Evan You
+ * Released under the MIT License.
+ */
+'use strict';
+
+/*  */
+
+var emptyObject = Object.freeze({});
+
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
+function isUndef (v) {
+  return v === undefined || v === null
+}
+
+function isDef (v) {
+  return v !== undefined && v !== null
+}
+
+function isTrue (v) {
+  return v === true
+}
+
+function isFalse (v) {
+  return v === false
+}
+
+/**
+ * Check if value is primitive.
+ */
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value, e.g., [object Object].
+ */
+var _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function isRegExp (v) {
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+  return val == null
+    ? ''
+    : typeof val === 'object'
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
+
+/**
+ * Convert an input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+  var n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  var map = Object.create(null);
+  var list = str.split(',');
+  for (var i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? function (val) { return map[val.toLowerCase()]; }
+    : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if an attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array.
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    var index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether an object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  var cache = Object.create(null);
+  return (function cachedFn (str) {
+    var hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
+ */
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+  start = start || 0;
+  var i = list.length - start;
+  var ret = new Array(i);
+  while (i--) {
+    ret[i] = list[i + start];
+  }
+  return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (var key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+  var res = {};
+  for (var i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i]);
+    }
+  }
+  return res
+}
+
+/* eslint-disable no-unused-vars */
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/* eslint-enable no-unused-vars */
+
+/**
+ * Return the same value.
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Generate a string containing static keys from compiler modules.
+ */
+function genStaticKeys (modules) {
+  return modules.reduce(function (keys, m) {
+    return keys.concat(m.staticKeys || [])
+  }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+  if (a === b) { return true }
+  var isObjectA = isObject(a);
+  var isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
+function looseIndexOf (arr, val) {
+  for (var i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) { return i }
+  }
+  return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+  var called = false;
+  return function () {
+    if (!called) {
+      called = true;
+      fn.apply(this, arguments);
+    }
+  }
+}
+
+var SSR_ATTR = 'data-server-rendered';
+
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured'
+];
+
+/*  */
+
+
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  // $flow-disable-line
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  // $flow-disable-line
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/*  */
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+  var c = (str + '').charCodeAt(0);
+  return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/**
+ * Parse simple path.
+ */
+var bailRE = /[^\w.$]/;
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  var segments = path.split('.');
+  return function (obj) {
+    for (var i = 0; i < segments.length; i++) {
+      if (!obj) { return }
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = /*@__PURE__*/(function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+{
+  var hasConsole = typeof console !== 'undefined';
+  var classifyRE = /(?:^|[-_])(\w)/g;
+  var classify = function (str) { return str
+    .replace(classifyRE, function (c) { return c.toUpperCase(); })
+    .replace(/[-_]/g, ''); };
+
+  warn = function (msg, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
+    }
+  };
+
+  tip = function (msg, vm) {
+    if (hasConsole && (!config.silent)) {
+      console.warn("[Vue tip]: " + msg + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = function (vm, includeFile) {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
+    if (!name && file) {
+      var match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+      (file && includeFile !== false ? (" at " + file) : '')
+    )
+  };
+
+  var repeat = function (str, n) {
+    var res = '';
+    while (n) {
+      if (n % 2 === 1) { res += str; }
+      if (n > 1) { str += str; }
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = function (vm) {
+    if (vm._isVue && vm.$parent) {
+      var tree = [];
+      var currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          var last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+            : formatComponentName(vm))); })
+        .join('\n')
+    } else {
+      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+    }
+  };
+}
+
+/*  */
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+  this.id = uid++;
+  this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+  this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+  remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+  if (Dep.target) {
+    Dep.target.addDep(this);
+  }
+};
+
+Dep.prototype.notify = function notify () {
+  // stabilize the subscriber list first
+  var subs = this.subs.slice();
+  if (!config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
+  for (var i = 0, l = subs.length; i < l; i++) {
+    subs[i].update();
+  }
+};
+
+// the current target watcher being evaluated.
+// this is globally unique because there could be only one
+// watcher being evaluated at any time.
+Dep.target = null;
+var targetStack = [];
+
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
+}
+
+function popTarget () {
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
+}
+
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
+  cloned.isCloned = true;
+  return cloned
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
+  // cache original method
+  var original = arrayProto[method];
+  def(arrayMethods, method, function mutator () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    var result = original.apply(this, args);
+    var ob = this.__ob__;
+    var inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) { ob.observeArray(inserted); }
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
+ */
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
+
+/**
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatch updates.
+ */
+var Observer = function Observer (value) {
+  this.value = value;
+  this.dep = new Dep();
+  this.vmCount = 0;
+  def(value, '__ob__', this);
+  if (Array.isArray(value)) {
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
+    this.observeArray(value);
+  } else {
+    this.walk(value);
+  }
+};
+
+/**
+ * Walk through all properties and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+  var keys = Object.keys(obj);
+  for (var i = 0; i < keys.length; i++) {
+    defineReactive$$1(obj, keys[i]);
+  }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+  for (var i = 0, l = items.length; i < l; i++) {
+    observe(items[i]);
+  }
+};
+
+// helpers
+
+/**
+ * Augment a target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment a target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (var i = 0, l = keys.length; i < l; i++) {
+    var key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  var ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    shouldObserve &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive$$1 (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  var dep = new Dep();
+
+  var property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  var getter = property && property.get;
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
+    val = obj[key];
+  }
+
+  var childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      var value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      var value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if (customSetter) {
+        customSetter();
+      }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (key in target && !(key in Object.prototype)) {
+    target[key] = val;
+    return val
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive$$1(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.splice(key, 1);
+    return
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid deleting properties on a Vue instance or its root $data ' +
+      '- just set it to null.'
+    );
+    return
+  }
+  if (!hasOwn(target, key)) {
+    return
+  }
+  delete target[key];
+  if (!ob) {
+    return
+  }
+  ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        "option \"" + key + "\" can only be used during instance " +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) { return to }
+  var key, toVal, fromVal;
+  var keys = Object.keys(from);
+  for (var i = 0; i < keys.length; i++) {
+    key = keys[i];
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+      )
+    }
+  } else {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      var instanceData = typeof childVal === 'function'
+        ? childVal.call(vm, vm)
+        : childVal;
+      var defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm, vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn(parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  return childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  var res = Object.create(parentVal || null);
+  if (childVal) {
+    assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
+  /* istanbul ignore if */
+  if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = {};
+  extend(ret, parentVal);
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key$1] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) { extend(ret, childVal); }
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+  for (var key in options.components) {
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
+  }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+  var props = options.props;
+  if (!props) { return }
+  var res = {};
+  var i, val, name;
+  if (Array.isArray(props)) {
+    i = props.length;
+    while (i--) {
+      val = props[i];
+      if (typeof val === 'string') {
+        name = camelize(val);
+        res[name] = { type: null };
+      } else {
+        warn('props must be strings when using array syntax.');
+      }
+    }
+  } else if (isPlainObject(props)) {
+    for (var key in props) {
+      val = props[key];
+      name = camelize(key);
+      res[name] = isPlainObject(val)
+        ? val
+        : { type: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
+  }
+  options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+  var inject = options.inject;
+  if (!inject) { return }
+  var normalized = options.inject = {};
+  if (Array.isArray(inject)) {
+    for (var i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+  var dirs = options.directives;
+  if (dirs) {
+    for (var key in dirs) {
+      var def = dirs[key];
+      if (typeof def === 'function') {
+        dirs[key] = { bind: def, update: def };
+      }
+    }
+  }
+}
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+  parent,
+  child,
+  vm
+) {
+  {
+    checkComponents(child);
+  }
+
+  if (typeof child === 'function') {
+    child = child.options;
+  }
+
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
+  normalizeDirectives(child);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
+    }
+  }
+
+  var options = {};
+  var key;
+  for (key in parent) {
+    mergeField(key);
+  }
+  for (key in child) {
+    if (!hasOwn(parent, key)) {
+      mergeField(key);
+    }
+  }
+  function mergeField (key) {
+    var strat = strats[key] || defaultStrat;
+    options[key] = strat(parent[key], child[key], vm, key);
+  }
+  return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+  options,
+  type,
+  id,
+  warnMissing
+) {
+  /* istanbul ignore if */
+  if (typeof id !== 'string') {
+    return
+  }
+  var assets = options[type];
+  // check local registration variations first
+  if (hasOwn(assets, id)) { return assets[id] }
+  var camelizedId = camelize(id);
+  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+  var PascalCaseId = capitalize(camelizedId);
+  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+  // fallback to prototype chain
+  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+  if (warnMissing && !res) {
+    warn(
+      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+      options
+    );
+  }
+  return res
+}
+
+/*  */
+
+
+
+function validateProp (
+  key,
+  propOptions,
+  propsData,
+  vm
+) {
+  var prop = propOptions[key];
+  var absent = !hasOwn(propsData, key);
+  var value = propsData[key];
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
+    if (absent && !hasOwn(prop, 'default')) {
+      value = false;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
+    }
+  }
+  // check default value
+  if (value === undefined) {
+    value = getPropDefaultValue(vm, prop, key);
+    // since the default value is a fresh copy,
+    // make sure to observe it.
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
+    observe(value);
+    toggleObserving(prevShouldObserve);
+  }
+  {
+    assertProp(prop, key, value, vm, absent);
+  }
+  return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+  // no default, return undefined
+  if (!hasOwn(prop, 'default')) {
+    return undefined
+  }
+  var def = prop.default;
+  // warn against non-factory defaults for Object & Array
+  if (isObject(def)) {
+    warn(
+      'Invalid default value for prop "' + key + '": ' +
+      'Props with type Object/Array must use a factory function ' +
+      'to return the default value.',
+      vm
+    );
+  }
+  // the raw prop value was also undefined from previous render,
+  // return previous default value to avoid unnecessary watcher trigger
+  if (vm && vm.$options.propsData &&
+    vm.$options.propsData[key] === undefined &&
+    vm._props[key] !== undefined
+  ) {
+    return vm._props[key]
+  }
+  // call factory function for non-Function types
+  // a value is Function if its prototype is function even across different execution context
+  return typeof def === 'function' && getType(prop.type) !== 'Function'
+    ? def.call(vm)
+    : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+  prop,
+  name,
+  value,
+  vm,
+  absent
+) {
+  if (prop.required && absent) {
+    warn(
+      'Missing required prop: "' + name + '"',
+      vm
+    );
+    return
+  }
+  if (value == null && !prop.required) {
+    return
+  }
+  var type = prop.type;
+  var valid = !type || type === true;
+  var expectedTypes = [];
+  if (type) {
+    if (!Array.isArray(type)) {
+      type = [type];
+    }
+    for (var i = 0; i < type.length && !valid; i++) {
+      var assertedType = assertType(value, type[i]);
+      expectedTypes.push(assertedType.expectedType || '');
+      valid = assertedType.valid;
+    }
+  }
+
+  if (!valid) {
+    warn(
+      getInvalidTypeMessage(name, value, expectedTypes),
+      vm
+    );
+    return
+  }
+  var validator = prop.validator;
+  if (validator) {
+    if (!validator(value)) {
+      warn(
+        'Invalid prop: custom validator check failed for prop "' + name + '".',
+        vm
+      );
+    }
+  }
+}
+
+var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+  var valid;
+  var expectedType = getType(type);
+  if (simpleCheckRE.test(expectedType)) {
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
+  } else if (expectedType === 'Object') {
+    valid = isPlainObject(value);
+  } else if (expectedType === 'Array') {
+    valid = Array.isArray(value);
+  } else {
+    valid = value instanceof type;
+  }
+  return {
+    valid: valid,
+    expectedType: expectedType
+  }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+  var match = fn && fn.toString().match(/^\s*function (\w+)/);
+  return match ? match[1] : ''
+}
+
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
+  }
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
+    }
+  }
+  return -1
+}
+
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use microtask by default, but expose a way to force (macro) task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine microtask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a (macro) task instead of a microtask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
+var mark;
+var measure;
+
+{
+  var perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    mark = function (tag) { return perf.mark(tag); };
+    measure = function (name, startTag, endTag) {
+      perf.measure(name, startTag, endTag);
+      perf.clearMarks(startTag);
+      perf.clearMarks(endTag);
+      perf.clearMeasures(name);
+    };
+  }
+}
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+var initProxy;
+
+{
+  var allowedGlobals = makeMap(
+    'Infinity,undefined,NaN,isFinite,isNaN,' +
+    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+    'require' // for Webpack/Browserify
+  );
+
+  var warnNonPresent = function (target, key) {
+    warn(
+      "Property or method \"" + key + "\" is not defined on the instance but " +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+      target
+    );
+  };
+
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
+  var hasProxy =
+    typeof Proxy !== 'undefined' && isNative(Proxy);
+
+  if (hasProxy) {
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+    config.keyCodes = new Proxy(config.keyCodes, {
+      set: function set (target, key, value) {
+        if (isBuiltInModifier(key)) {
+          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+          return false
+        } else {
+          target[key] = value;
+          return true
+        }
+      }
+    });
+  }
+
+  var hasHandler = {
+    has: function has (target, key) {
+      var has = key in target;
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
+      if (!has && !isAllowed) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return has || !isAllowed
+    }
+  };
+
+  var getHandler = {
+    get: function get (target, key) {
+      if (typeof key === 'string' && !(key in target)) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return target[key]
+    }
+  };
+
+  initProxy = function initProxy (vm) {
+    if (hasProxy) {
+      // determine which proxy handler to use
+      var options = vm.$options;
+      var handlers = options.render && options.render._withStripped
+        ? getHandler
+        : hasHandler;
+      vm._renderProxy = new Proxy(vm, handlers);
+    } else {
+      vm._renderProxy = vm;
+    }
+  };
+}
+
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+/*  */
+
+var normalizeEvent = cached(function (name) {
+  var passive = name.charAt(0) === '&';
+  name = passive ? name.slice(1) : name;
+  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+  name = once$$1 ? name.slice(1) : name;
+  var capture = name.charAt(0) === '!';
+  name = capture ? name.slice(1) : name;
+  return {
+    name: name,
+    once: once$$1,
+    capture: capture,
+    passive: passive
+  }
+});
+
+function createFnInvoker (fns) {
+  function invoker () {
+    var arguments$1 = arguments;
+
+    var fns = invoker.fns;
+    if (Array.isArray(fns)) {
+      var cloned = fns.slice();
+      for (var i = 0; i < cloned.length; i++) {
+        cloned[i].apply(null, arguments$1);
+      }
+    } else {
+      // return handler return value for single handlers
+      return fns.apply(null, arguments)
+    }
+  }
+  invoker.fns = fns;
+  return invoker
+}
+
+function updateListeners (
+  on,
+  oldOn,
+  add,
+  remove$$1,
+  createOnceHandler,
+  vm
+) {
+  var name, def$$1, cur, old, event;
+  for (name in on) {
+    def$$1 = cur = on[name];
+    old = oldOn[name];
+    event = normalizeEvent(name);
+    if (isUndef(cur)) {
+      warn(
+        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+        vm
+      );
+    } else if (isUndef(old)) {
+      if (isUndef(cur.fns)) {
+        cur = on[name] = createFnInvoker(cur);
+      }
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
+    } else if (cur !== old) {
+      old.fns = cur;
+      on[name] = old;
+    }
+  }
+  for (name in oldOn) {
+    if (isUndef(on[name])) {
+      event = normalizeEvent(name);
+      remove$$1(event.name, oldOn[name], event.capture);
+    }
+  }
+}
+
+/*  */
+
+function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
+  var invoker;
+  var oldHook = def[hookKey];
+
+  function wrappedHook () {
+    hook.apply(this, arguments);
+    // important: remove merged hook to ensure it's called only once
+    // and prevent memory leak
+    remove(invoker.fns, wrappedHook);
+  }
+
+  if (isUndef(oldHook)) {
+    // no existing hook
+    invoker = createFnInvoker([wrappedHook]);
+  } else {
+    /* istanbul ignore if */
+    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+      // already a merged invoker
+      invoker = oldHook;
+      invoker.fns.push(wrappedHook);
+    } else {
+      // existing plain hook
+      invoker = createFnInvoker([oldHook, wrappedHook]);
+    }
+  }
+
+  invoker.merged = true;
+  def[hookKey] = invoker;
+}
+
+/*  */
+
+function extractPropsFromVNodeData (
+  data,
+  Ctor,
+  tag
+) {
+  // we are only extracting raw values here.
+  // validation and default values are handled in the child
+  // component itself.
+  var propOptions = Ctor.options.props;
+  if (isUndef(propOptions)) {
+    return
+  }
+  var res = {};
+  var attrs = data.attrs;
+  var props = data.props;
+  if (isDef(attrs) || isDef(props)) {
+    for (var key in propOptions) {
+      var altKey = hyphenate(key);
+      {
+        var keyInLowerCase = key.toLowerCase();
+        if (
+          key !== keyInLowerCase &&
+          attrs && hasOwn(attrs, keyInLowerCase)
+        ) {
+          tip(
+            "Prop \"" + keyInLowerCase + "\" is passed to component " +
+            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+            " \"" + key + "\". " +
+            "Note that HTML attributes are case-insensitive and camelCased " +
+            "props need to use their kebab-case equivalents when using in-DOM " +
+            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+          );
+        }
+      }
+      checkProp(res, props, key, altKey, true) ||
+      checkProp(res, attrs, key, altKey, false);
+    }
+  }
+  return res
+}
+
+function checkProp (
+  res,
+  hash,
+  key,
+  altKey,
+  preserve
+) {
+  if (isDef(hash)) {
+    if (hasOwn(hash, key)) {
+      res[key] = hash[key];
+      if (!preserve) {
+        delete hash[key];
+      }
+      return true
+    } else if (hasOwn(hash, altKey)) {
+      res[key] = hash[altKey];
+      if (!preserve) {
+        delete hash[altKey];
+      }
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array<VNode>. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+  for (var i = 0; i < children.length; i++) {
+    if (Array.isArray(children[i])) {
+      return Array.prototype.concat.apply([], children)
+    }
+  }
+  return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. <template>, <slot>, v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+  return isPrimitive(children)
+    ? [createTextVNode(children)]
+    : Array.isArray(children)
+      ? normalizeArrayChildren(children)
+      : undefined
+}
+
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+  var res = [];
+  var i, c, lastIndex, last;
+  for (i = 0; i < children.length; i++) {
+    c = children[i];
+    if (isUndef(c) || typeof c === 'boolean') { continue }
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
+    //  nested
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
+    } else if (isPrimitive(c)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
+        res[lastIndex] = createTextVNode(last.text + c);
+      } else if (c !== '') {
+        // convert primitive to vnode
+        res.push(createTextVNode(c));
+      }
+    } else {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
+        res[lastIndex] = createTextVNode(last.text + c.text);
+      } else {
+        // default key for nested array children (likely generated by v-for)
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = "__vlist" + nestedIndex + "_" + i + "__";
+        }
+        res.push(c);
+      }
+    }
+  }
+  return res
+}
+
+/*  */
+
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
+
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
+}
+
+function resolveAsyncComponent (
+  factory,
+  baseCtor,
+  context
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  if (isDef(factory.contexts)) {
+    // already pending
+    factory.contexts.push(context);
+  } else {
+    var contexts = factory.contexts = [context];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = contexts.length; i < l; i++) {
+        contexts[i].$forceUpdate();
+      }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
+    };
+
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      }
+    });
+
+    var reject = once(function (reason) {
+      warn(
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
+      );
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (typeof res.then === 'function') {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
+  }
+}
+
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
+      }
+    }
+  }
+}
+
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
+  }
+}
+
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
+}
+
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    var vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$off(event[i], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    var vm = this;
+    {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
+      }
+    }
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        try {
+          cbs[i].apply(vm, args);
+        } catch (e) {
+          handleError(e, vm, ("event handler for \"" + event + "\""));
+        }
+      }
+    }
+    return vm
+  };
+}
+
+/*  */
+
+
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  var slots = {};
+  if (!children) {
+    return slots
+  }
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
+  }
+  return slots
+}
+
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  res
+) {
+  res = res || {};
+  for (var i = 0; i < fns.length; i++) {
+    if (Array.isArray(fns[i])) {
+      resolveScopedSlots(fns[i], res);
+    } else {
+      res[fns[i].key] = fns[i].fn;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var activeInstance = null;
+var isUpdatingChildComponent = false;
+
+function initLifecycle (vm) {
+  var options = vm.$options;
+
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
+    }
+    parent.$children.push(vm);
+  }
+
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
+
+  vm.$children = [];
+  vm.$refs = {};
+
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    activeInstance = prevActiveInstance;
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
+
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
+
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
+    }
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
+}
+
+function mountComponent (
+  vm,
+  el,
+  hydrating
+) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
+        warn(
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
+        );
+      }
+    }
+  }
+  callHook(vm, 'beforeMount');
+
+  var updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
+
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
+
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
+
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
+
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  }
+  return vm
+}
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+  {
+    isUpdatingChildComponent = true;
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren
+  var hasChildren = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    parentVnode.data.scopedSlots || // has new scoped slots
+    vm.$scopedSlots !== emptyObject // has old scoped slots
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (hasChildren) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
+}
+
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
+
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
+  }
+}
+
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
+
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      try {
+        handlers[i].call(vm);
+      } catch (e) {
+        handleError(e, vm, (hook + " hook"));
+      }
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
+}
+
+/*  */
+
+var MAX_UPDATE_COUNT = 100;
+
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
+
+/*  */
+
+
+
+var uid$1 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$1; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
+    }
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
+  }
+  return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
+  }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
+    }
+  }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
+  }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
+    }
+  }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
+  }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
+    }
+    this.active = false;
+  }
+};
+
+/*  */
+
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
+
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
+  }
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
+    {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      warn(
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
+    }
+  }
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
+  }
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
+      );
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
+  } else {
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
+  }
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
+    }
+  }
+}
+
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
+
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
+
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
+  }
+  return vm.$watch(expOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
+
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
+    var vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
+    }
+    return function unwatchFn () {
+      watcher.teardown();
+    }
+  };
+}
+
+/*  */
+
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
+  }
+}
+
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
+      }
+    });
+    toggleObserving(true);
+  }
+}
+
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
+
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
+        }
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
+      }
+    }
+    return result
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
+  }
+}
+
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
+
+  data = data || {};
+
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
+
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
+
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
+    }
+  }
+
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
+
+  return vnode
+}
+
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnode.componentOptions.Ctor(options)
+}
+
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
+  }
+}
+
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
+  } else {
+    on[event] = callback;
+  }
+}
+
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
+
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
+}
+
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
+  }
+}
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
+
+/*  */
+
+var uid$3 = 0;
+
+function initMixin (Vue) {
+  Vue.prototype._init = function (options) {
+    var vm = this;
+    // a uid
+    vm._uid = uid$3++;
+
+    var startTag, endTag;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      startTag = "vue-perf-start:" + (vm._uid);
+      endTag = "vue-perf-end:" + (vm._uid);
+      mark(startTag);
+    }
+
+    // a flag to avoid this being observed
+    vm._isVue = true;
+    // merge options
+    if (options && options._isComponent) {
+      // optimize internal component instantiation
+      // since dynamic options merging is pretty slow, and none of the
+      // internal component options needs special treatment.
+      initInternalComponent(vm, options);
+    } else {
+      vm.$options = mergeOptions(
+        resolveConstructorOptions(vm.constructor),
+        options || {},
+        vm
+      );
+    }
+    /* istanbul ignore else */
+    {
+      initProxy(vm);
+    }
+    // expose real self
+    vm._self = vm;
+    initLifecycle(vm);
+    initEvents(vm);
+    initRender(vm);
+    callHook(vm, 'beforeCreate');
+    initInjections(vm); // resolve injections before data/props
+    initState(vm);
+    initProvide(vm); // resolve provide after data/props
+    callHook(vm, 'created');
+
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      vm._name = formatComponentName(vm, false);
+      mark(endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
+    }
+
+    if (vm.$options.el) {
+      vm.$mount(vm.$options.el);
+    }
+  };
+}
+
+function initInternalComponent (vm, options) {
+  var opts = vm.$options = Object.create(vm.constructor.options);
+  // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
+  opts.parent = options.parent;
+  opts._parentVnode = parentVnode;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
+  if (options.render) {
+    opts.render = options.render;
+    opts.staticRenderFns = options.staticRenderFns;
+  }
+}
+
+function resolveConstructorOptions (Ctor) {
+  var options = Ctor.options;
+  if (Ctor.super) {
+    var superOptions = resolveConstructorOptions(Ctor.super);
+    var cachedSuperOptions = Ctor.superOptions;
+    if (superOptions !== cachedSuperOptions) {
+      // super option changed,
+      // need to resolve new options.
+      Ctor.superOptions = superOptions;
+      // check if there are any late-modified/attached options (#4976)
+      var modifiedOptions = resolveModifiedOptions(Ctor);
+      // update base extend options
+      if (modifiedOptions) {
+        extend(Ctor.extendOptions, modifiedOptions);
+      }
+      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+      if (options.name) {
+        options.components[options.name] = Ctor;
+      }
+    }
+  }
+  return options
+}
+
+function resolveModifiedOptions (Ctor) {
+  var modified;
+  var latest = Ctor.options;
+  var extended = Ctor.extendOptions;
+  var sealed = Ctor.sealedOptions;
+  for (var key in latest) {
+    if (latest[key] !== sealed[key]) {
+      if (!modified) { modified = {}; }
+      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+    }
+  }
+  return modified
+}
+
+function dedupe (latest, extended, sealed) {
+  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+  // between merges
+  if (Array.isArray(latest)) {
+    var res = [];
+    sealed = Array.isArray(sealed) ? sealed : [sealed];
+    extended = Array.isArray(extended) ? extended : [extended];
+    for (var i = 0; i < latest.length; i++) {
+      // push original options and not sealed options to exclude duplicated options
+      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+        res.push(latest[i]);
+      }
+    }
+    return res
+  } else {
+    return latest
+  }
+}
+
+function Vue (options) {
+  if (!(this instanceof Vue)
+  ) {
+    warn('Vue is a constructor and should be called with the `new` keyword');
+  }
+  this._init(options);
+}
+
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
+
+/*  */
+
+function initUse (Vue) {
+  Vue.use = function (plugin) {
+    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
+    }
+
+    // additional parameters
+    var args = toArray(arguments, 1);
+    args.unshift(this);
+    if (typeof plugin.install === 'function') {
+      plugin.install.apply(plugin, args);
+    } else if (typeof plugin === 'function') {
+      plugin.apply(null, args);
+    }
+    installedPlugins.push(plugin);
+    return this
+  };
+}
+
+/*  */
+
+function initMixin$1 (Vue) {
+  Vue.mixin = function (mixin) {
+    this.options = mergeOptions(this.options, mixin);
+    return this
+  };
+}
+
+/*  */
+
+function initExtend (Vue) {
+  /**
+   * Each instance constructor, including Vue, has a unique
+   * cid. This enables us to create wrapped "child
+   * constructors" for prototypal inheritance and cache them.
+   */
+  Vue.cid = 0;
+  var cid = 1;
+
+  /**
+   * Class inheritance
+   */
+  Vue.extend = function (extendOptions) {
+    extendOptions = extendOptions || {};
+    var Super = this;
+    var SuperId = Super.cid;
+    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+    if (cachedCtors[SuperId]) {
+      return cachedCtors[SuperId]
+    }
+
+    var name = extendOptions.name || Super.options.name;
+    if (name) {
+      validateComponentName(name);
+    }
+
+    var Sub = function VueComponent (options) {
+      this._init(options);
+    };
+    Sub.prototype = Object.create(Super.prototype);
+    Sub.prototype.constructor = Sub;
+    Sub.cid = cid++;
+    Sub.options = mergeOptions(
+      Super.options,
+      extendOptions
+    );
+    Sub['super'] = Super;
+
+    // For props and computed properties, we define the proxy getters on
+    // the Vue instances at extension time, on the extended prototype. This
+    // avoids Object.defineProperty calls for each instance created.
+    if (Sub.options.props) {
+      initProps$1(Sub);
+    }
+    if (Sub.options.computed) {
+      initComputed$1(Sub);
+    }
+
+    // allow further extension/mixin/plugin usage
+    Sub.extend = Super.extend;
+    Sub.mixin = Super.mixin;
+    Sub.use = Super.use;
+
+    // create asset registers, so extended classes
+    // can have their private assets too.
+    ASSET_TYPES.forEach(function (type) {
+      Sub[type] = Super[type];
+    });
+    // enable recursive self-lookup
+    if (name) {
+      Sub.options.components[name] = Sub;
+    }
+
+    // keep a reference to the super options at extension time.
+    // later at instantiation we can check if Super's options have
+    // been updated.
+    Sub.superOptions = Super.options;
+    Sub.extendOptions = extendOptions;
+    Sub.sealedOptions = extend({}, Sub.options);
+
+    // cache constructor
+    cachedCtors[SuperId] = Sub;
+    return Sub
+  };
+}
+
+function initProps$1 (Comp) {
+  var props = Comp.options.props;
+  for (var key in props) {
+    proxy(Comp.prototype, "_props", key);
+  }
+}
+
+function initComputed$1 (Comp) {
+  var computed = Comp.options.computed;
+  for (var key in computed) {
+    defineComputed(Comp.prototype, key, computed[key]);
+  }
+}
+
+/*  */
+
+function initAssetRegisters (Vue) {
+  /**
+   * Create asset registration methods.
+   */
+  ASSET_TYPES.forEach(function (type) {
+    Vue[type] = function (
+      id,
+      definition
+    ) {
+      if (!definition) {
+        return this.options[type + 's'][id]
+      } else {
+        /* istanbul ignore if */
+        if (type === 'component') {
+          validateComponentName(id);
+        }
+        if (type === 'component' && isPlainObject(definition)) {
+          definition.name = definition.name || id;
+          definition = this.options._base.extend(definition);
+        }
+        if (type === 'directive' && typeof definition === 'function') {
+          definition = { bind: definition, update: definition };
+        }
+        this.options[type + 's'][id] = definition;
+        return definition
+      }
+    };
+  });
+}
+
+/*  */
+
+
+
+function getComponentName (opts) {
+  return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
+    return pattern.split(',').indexOf(name) > -1
+  } else if (isRegExp(pattern)) {
+    return pattern.test(name)
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
+  for (var key in cache) {
+    var cachedNode = cache[key];
+    if (cachedNode) {
+      var name = getComponentName(cachedNode.componentOptions);
+      if (name && !filter(name)) {
+        pruneCacheEntry(cache, key, keys, _vnode);
+      }
+    }
+  }
+}
+
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+    cached$$1.componentInstance.$destroy();
+  }
+  cache[key] = null;
+  remove(keys, key);
+}
+
+var patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+  name: 'keep-alive',
+  abstract: true,
+
+  props: {
+    include: patternTypes,
+    exclude: patternTypes,
+    max: [String, Number]
+  },
+
+  created: function created () {
+    this.cache = Object.create(null);
+    this.keys = [];
+  },
+
+  destroyed: function destroyed () {
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
+    }
+  },
+
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
+  },
+
+  render: function render () {
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
+    var componentOptions = vnode && vnode.componentOptions;
+    if (componentOptions) {
+      // check pattern
+      var name = getComponentName(componentOptions);
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
+        return vnode
+      }
+
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
+      var key = vnode.key == null
+        // same constructor may get registered as different local components
+        // so cid alone is not enough (#3269)
+        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+        : vnode.key;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
+      } else {
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
+      }
+
+      vnode.data.keepAlive = true;
+    }
+    return vnode || (slot && slot[0])
+  }
+};
+
+var builtInComponents = {
+  KeepAlive: KeepAlive
+};
+
+/*  */
+
+function initGlobalAPI (Vue) {
+  // config
+  var configDef = {};
+  configDef.get = function () { return config; };
+  {
+    configDef.set = function () {
+      warn(
+        'Do not replace the Vue.config object, set individual fields instead.'
+      );
+    };
+  }
+  Object.defineProperty(Vue, 'config', configDef);
+
+  // exposed util methods.
+  // NOTE: these are not considered part of the public API - avoid relying on
+  // them unless you are aware of the risk.
+  Vue.util = {
+    warn: warn,
+    extend: extend,
+    mergeOptions: mergeOptions,
+    defineReactive: defineReactive$$1
+  };
+
+  Vue.set = set;
+  Vue.delete = del;
+  Vue.nextTick = nextTick;
+
+  Vue.options = Object.create(null);
+  ASSET_TYPES.forEach(function (type) {
+    Vue.options[type + 's'] = Object.create(null);
+  });
+
+  // this is used to identify the "base" constructor to extend all plain-object
+  // components with in Weex's multi-instance scenarios.
+  Vue.options._base = Vue;
+
+  extend(Vue.options.components, builtInComponents);
+
+  initUse(Vue);
+  initMixin$1(Vue);
+  initExtend(Vue);
+  initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue);
+
+Object.defineProperty(Vue.prototype, '$isServer', {
+  get: isServerRendering
+});
+
+Object.defineProperty(Vue.prototype, '$ssrContext', {
+  get: function get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.18-beta.0';
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+var xlinkNS = 'http://www.w3.org/1999/xlink';
+
+var isXlink = function (name) {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+var getXlinkProp = function (name) {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+var isFalsyAttrValue = function (val) {
+  return val == null || val === false
+};
+
+/*  */
+
+function genClassForVnode (vnode) {
+  var data = vnode.data;
+  var parentNode = vnode;
+  var childNode = vnode;
+  while (isDef(childNode.componentInstance)) {
+    childNode = childNode.componentInstance._vnode;
+    if (childNode && childNode.data) {
+      data = mergeClassData(childNode.data, data);
+    }
+  }
+  while (isDef(parentNode = parentNode.parent)) {
+    if (parentNode && parentNode.data) {
+      data = mergeClassData(data, parentNode.data);
+    }
+  }
+  return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+  return {
+    staticClass: concat(child.staticClass, parent.staticClass),
+    class: isDef(child.class)
+      ? [child.class, parent.class]
+      : parent.class
+  }
+}
+
+function renderClass (
+  staticClass,
+  dynamicClass
+) {
+  if (isDef(staticClass) || isDef(dynamicClass)) {
+    return concat(staticClass, stringifyClass(dynamicClass))
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function concat (a, b) {
+  return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+  if (Array.isArray(value)) {
+    return stringifyArray(value)
+  }
+  if (isObject(value)) {
+    return stringifyObject(value)
+  }
+  if (typeof value === 'string') {
+    return value
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function stringifyArray (value) {
+  var res = '';
+  var stringified;
+  for (var i = 0, l = value.length; i < l; i++) {
+    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+      if (res) { res += ' '; }
+      res += stringified;
+    }
+  }
+  return res
+}
+
+function stringifyObject (value) {
+  var res = '';
+  for (var key in value) {
+    if (value[key]) {
+      if (res) { res += ' '; }
+      res += key;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var namespaceMap = {
+  svg: 'http://www.w3.org/2000/svg',
+  math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+var isPreTag = function (tag) { return tag === 'pre'; };
+
+var isReservedTag = function (tag) {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+var unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+  /* istanbul ignore if */
+  if (!inBrowser) {
+    return true
+  }
+  if (isReservedTag(tag)) {
+    return false
+  }
+  tag = tag.toLowerCase();
+  /* istanbul ignore if */
+  if (unknownElementCache[tag] != null) {
+    return unknownElementCache[tag]
+  }
+  var el = document.createElement(tag);
+  if (tag.indexOf('-') > -1) {
+    // http://stackoverflow.com/a/28210364/1070244
+    return (unknownElementCache[tag] = (
+      el.constructor === window.HTMLUnknownElement ||
+      el.constructor === window.HTMLElement
+    ))
+  } else {
+    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+  }
+}
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+  if (typeof el === 'string') {
+    var selected = document.querySelector(el);
+    if (!selected) {
+      warn(
+        'Cannot find element: ' + el
+      );
+      return document.createElement('div')
+    }
+    return selected
+  } else {
+    return el
+  }
+}
+
+/*  */
+
+function createElement$1 (tagName, vnode) {
+  var elm = document.createElement(tagName);
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple');
+  }
+  return elm
+}
+
+function createElementNS (namespace, tagName) {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+  return document.createTextNode(text)
+}
+
+function createComment (text) {
+  return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+  parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+  node.removeChild(child);
+}
+
+function appendChild (node, child) {
+  node.appendChild(child);
+}
+
+function parentNode (node) {
+  return node.parentNode
+}
+
+function nextSibling (node) {
+  return node.nextSibling
+}
+
+function tagName (node) {
+  return node.tagName
+}
+
+function setTextContent (node, text) {
+  node.textContent = text;
+}
+
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
+}
+
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
+});
+
+/*  */
+
+var ref = {
+  create: function create (_, vnode) {
+    registerRef(vnode);
+  },
+  update: function update (oldVnode, vnode) {
+    if (oldVnode.data.ref !== vnode.data.ref) {
+      registerRef(oldVnode, true);
+      registerRef(vnode);
+    }
+  },
+  destroy: function destroy (vnode) {
+    registerRef(vnode, true);
+  }
+};
+
+function registerRef (vnode, isRemoval) {
+  var key = vnode.data.ref;
+  if (!isDef(key)) { return }
+
+  var vm = vnode.context;
+  var ref = vnode.componentInstance || vnode.elm;
+  var refs = vm.$refs;
+  if (isRemoval) {
+    if (Array.isArray(refs[key])) {
+      remove(refs[key], ref);
+    } else if (refs[key] === ref) {
+      refs[key] = undefined;
+    }
+  } else {
+    if (vnode.data.refInFor) {
+      if (!Array.isArray(refs[key])) {
+        refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
+      }
+    } else {
+      refs[key] = ref;
+    }
+  }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+var emptyNode = new VNode('', {}, []);
+
+var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function childrenIgnored (vnode) {
+  return vnode && vnode.data && vnode.data.domProps && (
+    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+  )
+}
+
+function sameVnode (a, b) {
+  return (
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        !childrenIgnored(a) && !childrenIgnored(b) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
+  )
+}
+
+function sameInputType (a, b) {
+  if (a.tag !== 'input') { return true }
+  var i;
+  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+  var i, key;
+  var map = {};
+  for (i = beginIdx; i <= endIdx; ++i) {
+    key = children[i].key;
+    if (isDef(key)) { map[key] = i; }
+  }
+  return map
+}
+
+function createPatchFunction (backend) {
+  var i, j;
+  var cbs = {};
+
+  var modules = backend.modules;
+  var nodeOps = backend.nodeOps;
+
+  for (i = 0; i < hooks.length; ++i) {
+    cbs[hooks[i]] = [];
+    for (j = 0; j < modules.length; ++j) {
+      if (isDef(modules[j][hooks[i]])) {
+        cbs[hooks[i]].push(modules[j][hooks[i]]);
+      }
+    }
+  }
+
+  function emptyNodeAt (elm) {
+    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+  }
+
+  function createRmCb (childElm, listeners) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
+        removeNode(childElm);
+      }
+    }
+    remove$$1.listeners = listeners;
+    return remove$$1
+  }
+
+  function removeNode (el) {
+    var parent = nodeOps.parentNode(el);
+    // element may have already been removed due to v-html / v-text
+    if (isDef(parent)) {
+      nodeOps.removeChild(parent, el);
+    }
+  }
+
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    vnode.isRootInsert = !nested; // for transition enter check
+    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+      return
+    }
+
+    var data = vnode.data;
+    var children = vnode.children;
+    var tag = vnode.tag;
+    if (isDef(tag)) {
+      {
+        if (data && data.pre) {
+          creatingElmInVPre++;
+        }
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+          warn(
+            'Unknown custom element: <' + tag + '> - did you ' +
+            'register the component correctly? For recursive components, ' +
+            'make sure to provide the "name" option.',
+            vnode.context
+          );
+        }
+      }
+
+      vnode.elm = vnode.ns
+        ? nodeOps.createElementNS(vnode.ns, tag)
+        : nodeOps.createElement(tag, vnode);
+      setScope(vnode);
+
+      /* istanbul ignore if */
+      {
+        createChildren(vnode, children, insertedVnodeQueue);
+        if (isDef(data)) {
+          invokeCreateHooks(vnode, insertedVnodeQueue);
+        }
+        insert(parentElm, vnode.elm, refElm);
+      }
+
+      if (data && data.pre) {
+        creatingElmInVPre--;
+      }
+    } else if (isTrue(vnode.isComment)) {
+      vnode.elm = nodeOps.createComment(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    } else {
+      vnode.elm = nodeOps.createTextNode(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    }
+  }
+
+  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i = vnode.data;
+    if (isDef(i)) {
+      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+      if (isDef(i = i.hook) && isDef(i = i.init)) {
+        i(vnode, false /* hydrating */);
+      }
+      // after calling the init hook, if the vnode is a child component
+      // it should've created a child instance and mounted it. the child
+      // component also has set the placeholder vnode's elm.
+      // in that case we can just return the element and be done.
+      if (isDef(vnode.componentInstance)) {
+        initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
+        if (isTrue(isReactivated)) {
+          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+        }
+        return true
+      }
+    }
+  }
+
+  function initComponent (vnode, insertedVnodeQueue) {
+    if (isDef(vnode.data.pendingInsert)) {
+      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
+    }
+    vnode.elm = vnode.componentInstance.$el;
+    if (isPatchable(vnode)) {
+      invokeCreateHooks(vnode, insertedVnodeQueue);
+      setScope(vnode);
+    } else {
+      // empty component root.
+      // skip all element-related modules except for ref (#3455)
+      registerRef(vnode);
+      // make sure to invoke the insert hook
+      insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i;
+    // hack for #4339: a reactivated component with inner transition
+    // does not trigger because the inner node's created hooks are not called
+    // again. It's not ideal to involve module-specific logic in here but
+    // there doesn't seem to be a better way to do it.
+    var innerNode = vnode;
+    while (innerNode.componentInstance) {
+      innerNode = innerNode.componentInstance._vnode;
+      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+        for (i = 0; i < cbs.activate.length; ++i) {
+          cbs.activate[i](emptyNode, innerNode);
+        }
+        insertedVnodeQueue.push(innerNode);
+        break
+      }
+    }
+    // unlike a newly created component,
+    // a reactivated keep-alive component doesn't insert itself
+    insert(parentElm, vnode.elm, refElm);
+  }
+
+  function insert (parent, elm, ref$$1) {
+    if (isDef(parent)) {
+      if (isDef(ref$$1)) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
+        }
+      } else {
+        nodeOps.appendChild(parent, elm);
+      }
+    }
+  }
+
+  function createChildren (vnode, children, insertedVnodeQueue) {
+    if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
+      for (var i = 0; i < children.length; ++i) {
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+      }
+    } else if (isPrimitive(vnode.text)) {
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+    }
+  }
+
+  function isPatchable (vnode) {
+    while (vnode.componentInstance) {
+      vnode = vnode.componentInstance._vnode;
+    }
+    return isDef(vnode.tag)
+  }
+
+  function invokeCreateHooks (vnode, insertedVnodeQueue) {
+    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+      cbs.create[i$1](emptyNode, vnode);
+    }
+    i = vnode.data.hook; // Reuse variable
+    if (isDef(i)) {
+      if (isDef(i.create)) { i.create(emptyNode, vnode); }
+      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+    }
+  }
+
+  // set scope id attribute for scoped CSS.
+  // this is implemented as a special case to avoid the overhead
+  // of going through the normal attribute patching process.
+  function setScope (vnode) {
+    var i;
+    if (isDef(i = vnode.fnScopeId)) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setStyleScope(vnode.elm, i);
+        }
+        ancestor = ancestor.parent;
+      }
+    }
+    // for slot content they should also get the scopeId from the host instance.
+    if (isDef(i = activeInstance) &&
+      i !== vnode.context &&
+      i !== vnode.fnContext &&
+      isDef(i = i.$options._scopeId)
+    ) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    }
+  }
+
+  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
+    }
+  }
+
+  function invokeDestroyHook (vnode) {
+    var i, j;
+    var data = vnode.data;
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+    }
+    if (isDef(i = vnode.children)) {
+      for (j = 0; j < vnode.children.length; ++j) {
+        invokeDestroyHook(vnode.children[j]);
+      }
+    }
+  }
+
+  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      var ch = vnodes[startIdx];
+      if (isDef(ch)) {
+        if (isDef(ch.tag)) {
+          removeAndInvokeRemoveHook(ch);
+          invokeDestroyHook(ch);
+        } else { // Text node
+          removeNode(ch.elm);
+        }
+      }
+    }
+  }
+
+  function removeAndInvokeRemoveHook (vnode, rm) {
+    if (isDef(rm) || isDef(vnode.data)) {
+      var i;
+      var listeners = cbs.remove.length + 1;
+      if (isDef(rm)) {
+        // we have a recursively passed down rm callback
+        // increase the listeners count
+        rm.listeners += listeners;
+      } else {
+        // directly removing
+        rm = createRmCb(vnode.elm, listeners);
+      }
+      // recursively invoke hooks on child component root node
+      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+        removeAndInvokeRemoveHook(i, rm);
+      }
+      for (i = 0; i < cbs.remove.length; ++i) {
+        cbs.remove[i](vnode, rm);
+      }
+      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+        i(vnode, rm);
+      } else {
+        rm();
+      }
+    } else {
+      removeNode(vnode.elm);
+    }
+  }
+
+  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+    var oldStartIdx = 0;
+    var newStartIdx = 0;
+    var oldEndIdx = oldCh.length - 1;
+    var oldStartVnode = oldCh[0];
+    var oldEndVnode = oldCh[oldEndIdx];
+    var newEndIdx = newCh.length - 1;
+    var newStartVnode = newCh[0];
+    var newEndVnode = newCh[newEndIdx];
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+    // removeOnly is a special flag used only by <transition-group>
+    // to ensure removed elements stay in correct relative positions
+    // during leaving transitions
+    var canMove = !removeOnly;
+
+    {
+      checkDuplicateKeys(newCh);
+    }
+
+    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+      if (isUndef(oldStartVnode)) {
+        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+      } else if (isUndef(oldEndVnode)) {
+        oldEndVnode = oldCh[--oldEndIdx];
+      } else if (sameVnode(oldStartVnode, newStartVnode)) {
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        oldStartVnode = oldCh[++oldStartIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else if (sameVnode(oldEndVnode, newEndVnode)) {
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+        oldStartVnode = oldCh[++oldStartIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else {
+        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+        if (isUndef(idxInOld)) { // New element
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+        } else {
+          vnodeToMove = oldCh[idxInOld];
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+            oldCh[idxInOld] = undefined;
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+          } else {
+            // same key but different element. treat as new element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          }
+        }
+        newStartVnode = newCh[++newStartIdx];
+      }
+    }
+    if (oldStartIdx > oldEndIdx) {
+      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+    } else if (newStartIdx > newEndIdx) {
+      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    }
+  }
+
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
+    if (oldVnode === vnode) {
+      return
+    }
+
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    var elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
+    // reuse element for static trees.
+    // note we only do this if the vnode is cloned -
+    // if the new node is not cloned it means the render functions have been
+    // reset by the hot-reload-api and we need to do a proper re-render.
+    if (isTrue(vnode.isStatic) &&
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
+      vnode.componentInstance = oldVnode.componentInstance;
+      return
+    }
+
+    var i;
+    var data = vnode.data;
+    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+      i(oldVnode, vnode);
+    }
+
+    var oldCh = oldVnode.children;
+    var ch = vnode.children;
+    if (isDef(data) && isPatchable(vnode)) {
+      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+    }
+    if (isUndef(vnode.text)) {
+      if (isDef(oldCh) && isDef(ch)) {
+        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+      } else if (isDef(ch)) {
+        {
+          checkDuplicateKeys(ch);
+        }
+        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+      } else if (isDef(oldCh)) {
+        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+      } else if (isDef(oldVnode.text)) {
+        nodeOps.setTextContent(elm, '');
+      }
+    } else if (oldVnode.text !== vnode.text) {
+      nodeOps.setTextContent(elm, vnode.text);
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+    }
+  }
+
+  function invokeInsertHook (vnode, queue, initial) {
+    // delay insert hooks for component root nodes, invoke them after the
+    // element is really inserted
+    if (isTrue(initial) && isDef(vnode.parent)) {
+      vnode.parent.data.pendingInsert = queue;
+    } else {
+      for (var i = 0; i < queue.length; ++i) {
+        queue[i].data.hook.insert(queue[i]);
+      }
+    }
+  }
+
+  var hydrationBailed = false;
+  // list of modules that can skip create hook during hydration because they
+  // are already rendered on the client or has no need for initialization
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+  // Note: this is a browser-only function so we can assume elms are DOM nodes.
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
+    // assert node match
+    {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
+        return false
+      }
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+      if (isDef(i = vnode.componentInstance)) {
+        // child component. it should have hydrated its own tree.
+        initComponent(vnode, insertedVnodeQueue);
+        return true
+      }
+    }
+    if (isDef(tag)) {
+      if (isDef(children)) {
+        // empty element, allow client to pick up and populate children
+        if (!elm.hasChildNodes()) {
+          createChildren(vnode, children, insertedVnodeQueue);
+        } else {
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
+            }
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
+            }
+          }
+        }
+      }
+      if (isDef(data)) {
+        var fullInvoke = false;
+        for (var key in data) {
+          if (!isRenderedModule(key)) {
+            fullInvoke = true;
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+            break
+          }
+        }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
+      }
+    } else if (elm.data !== vnode.text) {
+      elm.data = vnode.text;
+    }
+    return true
+  }
+
+  function assertNodeMatch (node, vnode, inVPre) {
+    if (isDef(vnode.tag)) {
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
+        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+      )
+    } else {
+      return node.nodeType === (vnode.isComment ? 8 : 3)
+    }
+  }
+
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
+    if (isUndef(vnode)) {
+      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+      return
+    }
+
+    var isInitialPatch = false;
+    var insertedVnodeQueue = [];
+
+    if (isUndef(oldVnode)) {
+      // empty mount (likely as component), create new root element
+      isInitialPatch = true;
+      createElm(vnode, insertedVnodeQueue);
+    } else {
+      var isRealElement = isDef(oldVnode.nodeType);
+      if (!isRealElement && sameVnode(oldVnode, vnode)) {
+        // patch existing root node
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
+      } else {
+        if (isRealElement) {
+          // mounting to a real element
+          // check if this is server-rendered content and if we can perform
+          // a successful hydration.
+          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+            oldVnode.removeAttribute(SSR_ATTR);
+            hydrating = true;
+          }
+          if (isTrue(hydrating)) {
+            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+              invokeInsertHook(vnode, insertedVnodeQueue, true);
+              return oldVnode
+            } else {
+              warn(
+                'The client-side rendered virtual DOM tree is not matching ' +
+                'server-rendered content. This is likely caused by incorrect ' +
+                'HTML markup, for example nesting block-level elements inside ' +
+                '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                'full client-side render.'
+              );
+            }
+          }
+          // either not server-rendered, or hydration failed.
+          // create an empty node and replace it
+          oldVnode = emptyNodeAt(oldVnode);
+        }
+
+        // replacing existing element
+        var oldElm = oldVnode.elm;
+        var parentElm = nodeOps.parentNode(oldElm);
+
+        // create new node
+        createElm(
+          vnode,
+          insertedVnodeQueue,
+          // extremely rare edge case: do not insert if old element is in a
+          // leaving transition. Only happens when combining transition +
+          // keep-alive + HOCs. (#4590)
+          oldElm._leaveCb ? null : parentElm,
+          nodeOps.nextSibling(oldElm)
+        );
+
+        // update parent placeholder node element, recursively
+        if (isDef(vnode.parent)) {
+          var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
+          while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
+            ancestor.elm = vnode.elm;
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
+            }
+            ancestor = ancestor.parent;
+          }
+        }
+
+        // destroy old node
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
+        } else if (isDef(oldVnode.tag)) {
+          invokeDestroyHook(oldVnode);
+        }
+      }
+    }
+
+    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+    return vnode.elm
+  }
+}
+
+/*  */
+
+var directives = {
+  create: updateDirectives,
+  update: updateDirectives,
+  destroy: function unbindDirectives (vnode) {
+    updateDirectives(vnode, emptyNode);
+  }
+};
+
+function updateDirectives (oldVnode, vnode) {
+  if (oldVnode.data.directives || vnode.data.directives) {
+    _update(oldVnode, vnode);
+  }
+}
+
+function _update (oldVnode, vnode) {
+  var isCreate = oldVnode === emptyNode;
+  var isDestroy = vnode === emptyNode;
+  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+  var dirsWithInsert = [];
+  var dirsWithPostpatch = [];
+
+  var key, oldDir, dir;
+  for (key in newDirs) {
+    oldDir = oldDirs[key];
+    dir = newDirs[key];
+    if (!oldDir) {
+      // new directive, bind
+      callHook$1(dir, 'bind', vnode, oldVnode);
+      if (dir.def && dir.def.inserted) {
+        dirsWithInsert.push(dir);
+      }
+    } else {
+      // existing directive, update
+      dir.oldValue = oldDir.value;
+      callHook$1(dir, 'update', vnode, oldVnode);
+      if (dir.def && dir.def.componentUpdated) {
+        dirsWithPostpatch.push(dir);
+      }
+    }
+  }
+
+  if (dirsWithInsert.length) {
+    var callInsert = function () {
+      for (var i = 0; i < dirsWithInsert.length; i++) {
+        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+      }
+    };
+    if (isCreate) {
+      mergeVNodeHook(vnode, 'insert', callInsert);
+    } else {
+      callInsert();
+    }
+  }
+
+  if (dirsWithPostpatch.length) {
+    mergeVNodeHook(vnode, 'postpatch', function () {
+      for (var i = 0; i < dirsWithPostpatch.length; i++) {
+        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+      }
+    });
+  }
+
+  if (!isCreate) {
+    for (key in oldDirs) {
+      if (!newDirs[key]) {
+        // no longer present, unbind
+        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+      }
+    }
+  }
+}
+
+var emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+  dirs,
+  vm
+) {
+  var res = Object.create(null);
+  if (!dirs) {
+    // $flow-disable-line
+    return res
+  }
+  var i, dir;
+  for (i = 0; i < dirs.length; i++) {
+    dir = dirs[i];
+    if (!dir.modifiers) {
+      // $flow-disable-line
+      dir.modifiers = emptyModifiers;
+    }
+    res[getRawDirName(dir)] = dir;
+    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+  }
+  // $flow-disable-line
+  return res
+}
+
+function getRawDirName (dir) {
+  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+  var fn = dir.def && dir.def[hook];
+  if (fn) {
+    try {
+      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+    } catch (e) {
+      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+    }
+  }
+}
+
+var baseModules = [
+  ref,
+  directives
+];
+
+/*  */
+
+function updateAttrs (oldVnode, vnode) {
+  var opts = vnode.componentOptions;
+  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+    return
+  }
+  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+    return
+  }
+  var key, cur, old;
+  var elm = vnode.elm;
+  var oldAttrs = oldVnode.data.attrs || {};
+  var attrs = vnode.data.attrs || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(attrs.__ob__)) {
+    attrs = vnode.data.attrs = extend({}, attrs);
+  }
+
+  for (key in attrs) {
+    cur = attrs[key];
+    old = oldAttrs[key];
+    if (old !== cur) {
+      setAttr(elm, key, cur);
+    }
+  }
+  // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
+  /* istanbul ignore if */
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+    setAttr(elm, 'value', attrs.value);
+  }
+  for (key in oldAttrs) {
+    if (isUndef(attrs[key])) {
+      if (isXlink(key)) {
+        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else if (!isEnumeratedAttr(key)) {
+        elm.removeAttribute(key);
+      }
+    }
+  }
+}
+
+function setAttr (el, key, value) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
+    // set attribute for blank value
+    // e.g. <option disabled>Select one</option>
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
+    }
+  } else if (isEnumeratedAttr(key)) {
+    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+  } else if (isXlink(key)) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+    } else {
+      el.setAttributeNS(xlinkNS, key, value);
+    }
+  } else {
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
+    }
+    el.setAttribute(key, value);
+  }
+}
+
+var attrs = {
+  create: updateAttrs,
+  update: updateAttrs
+};
+
+/*  */
+
+function updateClass (oldVnode, vnode) {
+  var el = vnode.elm;
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+  if (
+    isUndef(data.staticClass) &&
+    isUndef(data.class) && (
+      isUndef(oldData) || (
+        isUndef(oldData.staticClass) &&
+        isUndef(oldData.class)
+      )
+    )
+  ) {
+    return
+  }
+
+  var cls = genClassForVnode(vnode);
+
+  // handle transition classes
+  var transitionClass = el._transitionClasses;
+  if (isDef(transitionClass)) {
+    cls = concat(cls, stringifyClass(transitionClass));
+  }
+
+  // set the class
+  if (cls !== el._prevClass) {
+    el.setAttribute('class', cls);
+    el._prevClass = cls;
+  }
+}
+
+var klass = {
+  create: updateClass,
+  update: updateClass
+};
+
+/*  */
+
+var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+function parseFilters (exp) {
+  var inSingle = false;
+  var inDouble = false;
+  var inTemplateString = false;
+  var inRegex = false;
+  var curly = 0;
+  var square = 0;
+  var paren = 0;
+  var lastFilterIndex = 0;
+  var c, prev, i, expression, filters;
+
+  for (i = 0; i < exp.length; i++) {
+    prev = c;
+    c = exp.charCodeAt(i);
+    if (inSingle) {
+      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+    } else if (inDouble) {
+      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+    } else if (inTemplateString) {
+      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+    } else if (inRegex) {
+      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+    } else if (
+      c === 0x7C && // pipe
+      exp.charCodeAt(i + 1) !== 0x7C &&
+      exp.charCodeAt(i - 1) !== 0x7C &&
+      !curly && !square && !paren
+    ) {
+      if (expression === undefined) {
+        // first filter, end of expression
+        lastFilterIndex = i + 1;
+        expression = exp.slice(0, i).trim();
+      } else {
+        pushFilter();
+      }
+    } else {
+      switch (c) {
+        case 0x22: inDouble = true; break         // "
+        case 0x27: inSingle = true; break         // '
+        case 0x60: inTemplateString = true; break // `
+        case 0x28: paren++; break                 // (
+        case 0x29: paren--; break                 // )
+        case 0x5B: square++; break                // [
+        case 0x5D: square--; break                // ]
+        case 0x7B: curly++; break                 // {
+        case 0x7D: curly--; break                 // }
+      }
+      if (c === 0x2f) { // /
+        var j = i - 1;
+        var p = (void 0);
+        // find first non-whitespace prev char
+        for (; j >= 0; j--) {
+          p = exp.charAt(j);
+          if (p !== ' ') { break }
+        }
+        if (!p || !validDivisionCharRE.test(p)) {
+          inRegex = true;
+        }
+      }
+    }
+  }
+
+  if (expression === undefined) {
+    expression = exp.slice(0, i).trim();
+  } else if (lastFilterIndex !== 0) {
+    pushFilter();
+  }
+
+  function pushFilter () {
+    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+    lastFilterIndex = i + 1;
+  }
+
+  if (filters) {
+    for (i = 0; i < filters.length; i++) {
+      expression = wrapFilter(expression, filters[i]);
+    }
+  }
+
+  return expression
+}
+
+function wrapFilter (exp, filter) {
+  var i = filter.indexOf('(');
+  if (i < 0) {
+    // _f: resolveFilter
+    return ("_f(\"" + filter + "\")(" + exp + ")")
+  } else {
+    var name = filter.slice(0, i);
+    var args = filter.slice(i + 1);
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
+  }
+}
+
+/*  */
+
+function baseWarn (msg) {
+  console.error(("[Vue compiler]: " + msg));
+}
+
+function pluckModuleFunction (
+  modules,
+  key
+) {
+  return modules
+    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+    : []
+}
+
+function addProp (el, name, value) {
+  (el.props || (el.props = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+function addAttr (el, name, value) {
+  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value) {
+  el.attrsMap[name] = value;
+  el.attrsList.push({ name: name, value: value });
+}
+
+function addDirective (
+  el,
+  name,
+  rawName,
+  value,
+  arg,
+  modifiers
+) {
+  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  el.plain = false;
+}
+
+function addHandler (
+  el,
+  name,
+  value,
+  modifiers,
+  important,
+  warn
+) {
+  modifiers = modifiers || emptyObject;
+  // warn prevent and passive modifier
+  /* istanbul ignore if */
+  if (
+    warn &&
+    modifiers.prevent && modifiers.passive
+  ) {
+    warn(
+      'passive and prevent can\'t be used together. ' +
+      'Passive handler can\'t prevent default event.'
+    );
+  }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (name === 'click') {
+    if (modifiers.right) {
+      name = 'contextmenu';
+      delete modifiers.right;
+    } else if (modifiers.middle) {
+      name = 'mouseup';
+    }
+  }
+
+  // check capture modifier
+  if (modifiers.capture) {
+    delete modifiers.capture;
+    name = '!' + name; // mark the event as captured
+  }
+  if (modifiers.once) {
+    delete modifiers.once;
+    name = '~' + name; // mark the event as once
+  }
+  /* istanbul ignore if */
+  if (modifiers.passive) {
+    delete modifiers.passive;
+    name = '&' + name; // mark the event as passive
+  }
+
+  var events;
+  if (modifiers.native) {
+    delete modifiers.native;
+    events = el.nativeEvents || (el.nativeEvents = {});
+  } else {
+    events = el.events || (el.events = {});
+  }
+
+  var newHandler = {
+    value: value.trim()
+  };
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
+  var handlers = events[name];
+  /* istanbul ignore if */
+  if (Array.isArray(handlers)) {
+    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+  } else if (handlers) {
+    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+  } else {
+    events[name] = newHandler;
+  }
+
+  el.plain = false;
+}
+
+function getBindingAttr (
+  el,
+  name,
+  getStatic
+) {
+  var dynamicValue =
+    getAndRemoveAttr(el, ':' + name) ||
+    getAndRemoveAttr(el, 'v-bind:' + name);
+  if (dynamicValue != null) {
+    return parseFilters(dynamicValue)
+  } else if (getStatic !== false) {
+    var staticValue = getAndRemoveAttr(el, name);
+    if (staticValue != null) {
+      return JSON.stringify(staticValue)
+    }
+  }
+}
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
+  var val;
+  if ((val = el.attrsMap[name]) != null) {
+    var list = el.attrsList;
+    for (var i = 0, l = list.length; i < l; i++) {
+      if (list[i].name === name) {
+        list.splice(i, 1);
+        break
+      }
+    }
+  }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
+  return val
+}
+
+/*  */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  var ref = modifiers || {};
+  var number = ref.number;
+  var trim = ref.trim;
+
+  var baseValueExpression = '$$v';
+  var valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      "(typeof " + baseValueExpression + " === 'string'" +
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+  var assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: ("(" + value + ")"),
+    expression: ("\"" + value + "\""),
+    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  var res = parseModel(value);
+  if (res.key === null) {
+    return (value + "=" + assignment)
+  } else {
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+var len, str, chr, index$1, expressionPos, expressionEndPos;
+
+
+
+function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index$1)
+}
+
+function eof () {
+  return index$1 >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  var inBracket = 1;
+  expressionPos = index$1;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) { inBracket++; }
+    if (chr === 0x5D) { inBracket--; }
+    if (inBracket === 0) {
+      expressionEndPos = index$1;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  var stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
+    }
+  }
+}
+
+/*  */
+
+var warn$1;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
+
+function model (
+  el,
+  dir,
+  _warn
+) {
+  warn$1 = _warn;
+  var value = dir.value;
+  var modifiers = dir.modifiers;
+  var tag = el.tag;
+  var type = el.attrsMap.type;
+
+  {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$1(
+        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+        "File inputs are read only. Use a v-on:change listener instead."
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else {
+    warn$1(
+      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+      "v-model is not supported on this element type. " +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.'
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    "Array.isArray(" + value + ")" +
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
+  );
+  addHandler(el, 'change',
+    "var $$a=" + value + "," +
+        '$$el=$event.target,' +
+        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+    'if(Array.isArray($$a)){' +
+      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+          '$$i=_i($$a,$$v);' +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
+    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+    null, true
+  );
+}
+
+function genRadioModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var selectedVal = "Array.prototype.filter" +
+    ".call($event.target.options,function(o){return o.selected})" +
+    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+    "return " + (number ? '_n(val)' : 'val') + "})";
+
+  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  var code = "var $$selectedVal = " + selectedVal + ";";
+  code = code + " " + (genAssignmentCode(value, assignment));
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
+  {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally'
+      );
+    }
+  }
+
+  var ref = modifiers || {};
+  var lazy = ref.lazy;
+  var number = ref.number;
+  var trim = ref.trim;
+  var needCompositionGuard = !lazy && type !== 'range';
+  var event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  var valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = "$event.target.value.trim()";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+
+  var code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = "if($event.target.composing)return;" + code;
+  }
+
+  addProp(el, 'value', ("(" + value + ")"));
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+// normalize v-model event tokens that can only be determined at runtime.
+// it's important to place the event as the first in the array because
+// the whole point is ensuring the v-model callback gets called before
+// user-attached handlers.
+function normalizeEvents (on) {
+  /* istanbul ignore if */
+  if (isDef(on[RANGE_TOKEN])) {
+    // IE input[type=range] only supports `change` event
+    var event = isIE ? 'change' : 'input';
+    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+    delete on[RANGE_TOKEN];
+  }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
+}
+
+var target$1;
+
+function createOnceHandler$1 (event, handler, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
+function add$1 (
+  event,
+  handler,
+  capture,
+  passive
+) {
+  handler = withMacroTask(handler);
+  target$1.addEventListener(
+    event,
+    handler,
+    supportsPassive
+      ? { capture: capture, passive: passive }
+      : capture
+  );
+}
+
+function remove$2 (
+  event,
+  handler,
+  capture,
+  _target
+) {
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
+}
+
+function updateDOMListeners (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+    return
+  }
+  var on = vnode.data.on || {};
+  var oldOn = oldVnode.data.on || {};
+  target$1 = vnode.elm;
+  normalizeEvents(on);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
+  target$1 = undefined;
+}
+
+var events = {
+  create: updateDOMListeners,
+  update: updateDOMListeners
+};
+
+/*  */
+
+function updateDOMProps (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+    return
+  }
+  var key, cur;
+  var elm = vnode.elm;
+  var oldProps = oldVnode.data.domProps || {};
+  var props = vnode.data.domProps || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(props.__ob__)) {
+    props = vnode.data.domProps = extend({}, props);
+  }
+
+  for (key in oldProps) {
+    if (isUndef(props[key])) {
+      elm[key] = '';
+    }
+  }
+  for (key in props) {
+    cur = props[key];
+    // ignore children if the node has textContent or innerHTML,
+    // as these will throw away existing DOM nodes and cause removal errors
+    // on subsequent patches (#3360)
+    if (key === 'textContent' || key === 'innerHTML') {
+      if (vnode.children) { vnode.children.length = 0; }
+      if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
+    }
+
+    if (key === 'value') {
+      // store value as _value as well since
+      // non-string values will be stringified
+      elm._value = cur;
+      // avoid resetting cursor position when value is the same
+      var strCur = isUndef(cur) ? '' : String(cur);
+      if (shouldUpdateValue(elm, strCur)) {
+        elm.value = strCur;
+      }
+    } else {
+      elm[key] = cur;
+    }
+  }
+}
+
+// check platforms/web/util/attrs.js acceptValue
+
+
+function shouldUpdateValue (elm, checkVal) {
+  return (!elm.composing && (
+    elm.tagName === 'OPTION' ||
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
+  ))
+}
+
+function isNotInFocusAndDirty (elm, checkVal) {
+  // return true when textbox (.number and .trim) loses focus and its value is
+  // not equal to the updated value
+  var notInFocus = true;
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm; } catch (e) {}
+  return notInFocus && elm.value !== checkVal
+}
+
+function isDirtyWithModifiers (elm, newVal) {
+  var value = elm.value;
+  var modifiers = elm._vModifiers; // injected by v-model runtime
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
+  }
+  return value !== newVal
+}
+
+var domProps = {
+  create: updateDOMProps,
+  update: updateDOMProps
+};
+
+/*  */
+
+var parseStyleText = cached(function (cssText) {
+  var res = {};
+  var listDelimiter = /;(?![^(]*\))/g;
+  var propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      var tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// merge static and dynamic style data on the same vnode
+function normalizeStyleData (data) {
+  var style = normalizeStyleBinding(data.style);
+  // static style is pre-processed into an object during compilation
+  // and is always a fresh object, so it's safe to merge into it
+  return data.staticStyle
+    ? extend(data.staticStyle, style)
+    : style
+}
+
+// normalize possible array / string values into Object
+function normalizeStyleBinding (bindingStyle) {
+  if (Array.isArray(bindingStyle)) {
+    return toObject(bindingStyle)
+  }
+  if (typeof bindingStyle === 'string') {
+    return parseStyleText(bindingStyle)
+  }
+  return bindingStyle
+}
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+function getStyle (vnode, checkChild) {
+  var res = {};
+  var styleData;
+
+  if (checkChild) {
+    var childNode = vnode;
+    while (childNode.componentInstance) {
+      childNode = childNode.componentInstance._vnode;
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
+        extend(res, styleData);
+      }
+    }
+  }
+
+  if ((styleData = normalizeStyleData(vnode.data))) {
+    extend(res, styleData);
+  }
+
+  var parentNode = vnode;
+  while ((parentNode = parentNode.parent)) {
+    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+      extend(res, styleData);
+    }
+  }
+  return res
+}
+
+/*  */
+
+var cssVarRE = /^--/;
+var importantRE = /\s*!important$/;
+var setProp = function (el, name, val) {
+  /* istanbul ignore if */
+  if (cssVarRE.test(name)) {
+    el.style.setProperty(name, val);
+  } else if (importantRE.test(val)) {
+    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+  } else {
+    var normalizedName = normalize(name);
+    if (Array.isArray(val)) {
+      // Support values array created by autoprefixer, e.g.
+      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+      // Set them one by one, and the browser will only set those it can recognize
+      for (var i = 0, len = val.length; i < len; i++) {
+        el.style[normalizedName] = val[i];
+      }
+    } else {
+      el.style[normalizedName] = val;
+    }
+  }
+};
+
+var vendorNames = ['Webkit', 'Moz', 'ms'];
+
+var emptyStyle;
+var normalize = cached(function (prop) {
+  emptyStyle = emptyStyle || document.createElement('div').style;
+  prop = camelize(prop);
+  if (prop !== 'filter' && (prop in emptyStyle)) {
+    return prop
+  }
+  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+  for (var i = 0; i < vendorNames.length; i++) {
+    var name = vendorNames[i] + capName;
+    if (name in emptyStyle) {
+      return name
+    }
+  }
+});
+
+function updateStyle (oldVnode, vnode) {
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+
+  if (isUndef(data.staticStyle) && isUndef(data.style) &&
+    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  ) {
+    return
+  }
+
+  var cur, name;
+  var el = vnode.elm;
+  var oldStaticStyle = oldData.staticStyle;
+  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+
+  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+  var oldStyle = oldStaticStyle || oldStyleBinding;
+
+  var style = normalizeStyleBinding(vnode.data.style) || {};
+
+  // store normalized style under a different key for next diff
+  // make sure to clone it if it's reactive, since the user likely wants
+  // to mutate it.
+  vnode.data.normalizedStyle = isDef(style.__ob__)
+    ? extend({}, style)
+    : style;
+
+  var newStyle = getStyle(vnode, true);
+
+  for (name in oldStyle) {
+    if (isUndef(newStyle[name])) {
+      setProp(el, name, '');
+    }
+  }
+  for (name in newStyle) {
+    cur = newStyle[name];
+    if (cur !== oldStyle[name]) {
+      // ie9 setting to null has no effect, must use empty string
+      setProp(el, name, cur == null ? '' : cur);
+    }
+  }
+}
+
+var style = {
+  create: updateStyle,
+  update: updateStyle
+};
+
+/*  */
+
+var whitespaceRE = /\s+/;
+
+/**
+ * Add class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function addClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
+    } else {
+      el.classList.add(cls);
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    if (cur.indexOf(' ' + cls + ' ') < 0) {
+      el.setAttribute('class', (cur + cls).trim());
+    }
+  }
+}
+
+/**
+ * Remove class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function removeClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
+    } else {
+      el.classList.remove(cls);
+    }
+    if (!el.classList.length) {
+      el.removeAttribute('class');
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    var tar = ' ' + cls + ' ';
+    while (cur.indexOf(tar) >= 0) {
+      cur = cur.replace(tar, ' ');
+    }
+    cur = cur.trim();
+    if (cur) {
+      el.setAttribute('class', cur);
+    } else {
+      el.removeAttribute('class');
+    }
+  }
+}
+
+/*  */
+
+function resolveTransition (def$$1) {
+  if (!def$$1) {
+    return
+  }
+  /* istanbul ignore else */
+  if (typeof def$$1 === 'object') {
+    var res = {};
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
+    }
+    extend(res, def$$1);
+    return res
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
+  }
+}
+
+var autoCssTransition = cached(function (name) {
+  return {
+    enterClass: (name + "-enter"),
+    enterToClass: (name + "-enter-to"),
+    enterActiveClass: (name + "-enter-active"),
+    leaveClass: (name + "-leave"),
+    leaveToClass: (name + "-leave-to"),
+    leaveActiveClass: (name + "-leave-active")
+  }
+});
+
+var hasTransition = inBrowser && !isIE9;
+var TRANSITION = 'transition';
+var ANIMATION = 'animation';
+
+// Transition property/event sniffing
+var transitionProp = 'transition';
+var transitionEndEvent = 'transitionend';
+var animationProp = 'animation';
+var animationEndEvent = 'animationend';
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    transitionProp = 'WebkitTransition';
+    transitionEndEvent = 'webkitTransitionEnd';
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    animationProp = 'WebkitAnimation';
+    animationEndEvent = 'webkitAnimationEnd';
+  }
+}
+
+// binding to window is necessary to make hot reload work in IE in strict mode
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
+
+function nextFrame (fn) {
+  raf(function () {
+    raf(fn);
+  });
+}
+
+function addTransitionClass (el, cls) {
+  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+  if (transitionClasses.indexOf(cls) < 0) {
+    transitionClasses.push(cls);
+    addClass(el, cls);
+  }
+}
+
+function removeTransitionClass (el, cls) {
+  if (el._transitionClasses) {
+    remove(el._transitionClasses, cls);
+  }
+  removeClass(el, cls);
+}
+
+function whenTransitionEnds (
+  el,
+  expectedType,
+  cb
+) {
+  var ref = getTransitionInfo(el, expectedType);
+  var type = ref.type;
+  var timeout = ref.timeout;
+  var propCount = ref.propCount;
+  if (!type) { return cb() }
+  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+  var ended = 0;
+  var end = function () {
+    el.removeEventListener(event, onEnd);
+    cb();
+  };
+  var onEnd = function (e) {
+    if (e.target === el) {
+      if (++ended >= propCount) {
+        end();
+      }
+    }
+  };
+  setTimeout(function () {
+    if (ended < propCount) {
+      end();
+    }
+  }, timeout + 1);
+  el.addEventListener(event, onEnd);
+}
+
+var transformRE = /\b(transform|all)(,|$)/;
+
+function getTransitionInfo (el, expectedType) {
+  var styles = window.getComputedStyle(el);
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
+  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
+  var animationTimeout = getTimeout(animationDelays, animationDurations);
+
+  var type;
+  var timeout = 0;
+  var propCount = 0;
+  /* istanbul ignore if */
+  if (expectedType === TRANSITION) {
+    if (transitionTimeout > 0) {
+      type = TRANSITION;
+      timeout = transitionTimeout;
+      propCount = transitionDurations.length;
+    }
+  } else if (expectedType === ANIMATION) {
+    if (animationTimeout > 0) {
+      type = ANIMATION;
+      timeout = animationTimeout;
+      propCount = animationDurations.length;
+    }
+  } else {
+    timeout = Math.max(transitionTimeout, animationTimeout);
+    type = timeout > 0
+      ? transitionTimeout > animationTimeout
+        ? TRANSITION
+        : ANIMATION
+      : null;
+    propCount = type
+      ? type === TRANSITION
+        ? transitionDurations.length
+        : animationDurations.length
+      : 0;
+  }
+  var hasTransform =
+    type === TRANSITION &&
+    transformRE.test(styles[transitionProp + 'Property']);
+  return {
+    type: type,
+    timeout: timeout,
+    propCount: propCount,
+    hasTransform: hasTransform
+  }
+}
+
+function getTimeout (delays, durations) {
+  /* istanbul ignore next */
+  while (delays.length < durations.length) {
+    delays = delays.concat(delays);
+  }
+
+  return Math.max.apply(null, durations.map(function (d, i) {
+    return toMs(d) + toMs(delays[i])
+  }))
+}
+
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
+function toMs (s) {
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
+}
+
+/*  */
+
+function enter (vnode, toggleDisplay) {
+  var el = vnode.elm;
+
+  // call leave callback now
+  if (isDef(el._leaveCb)) {
+    el._leaveCb.cancelled = true;
+    el._leaveCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data)) {
+    return
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._enterCb) || el.nodeType !== 1) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var enterClass = data.enterClass;
+  var enterToClass = data.enterToClass;
+  var enterActiveClass = data.enterActiveClass;
+  var appearClass = data.appearClass;
+  var appearToClass = data.appearToClass;
+  var appearActiveClass = data.appearActiveClass;
+  var beforeEnter = data.beforeEnter;
+  var enter = data.enter;
+  var afterEnter = data.afterEnter;
+  var enterCancelled = data.enterCancelled;
+  var beforeAppear = data.beforeAppear;
+  var appear = data.appear;
+  var afterAppear = data.afterAppear;
+  var appearCancelled = data.appearCancelled;
+  var duration = data.duration;
+
+  // activeInstance will always be the <transition> component managing this
+  // transition. One edge case to check is when the <transition> is placed
+  // as the root node of a child component. In that case we need to check
+  // <transition>'s parent for appear check.
+  var context = activeInstance;
+  var transitionNode = activeInstance.$vnode;
+  while (transitionNode && transitionNode.parent) {
+    transitionNode = transitionNode.parent;
+    context = transitionNode.context;
+  }
+
+  var isAppear = !context._isMounted || !vnode.isRootInsert;
+
+  if (isAppear && !appear && appear !== '') {
+    return
+  }
+
+  var startClass = isAppear && appearClass
+    ? appearClass
+    : enterClass;
+  var activeClass = isAppear && appearActiveClass
+    ? appearActiveClass
+    : enterActiveClass;
+  var toClass = isAppear && appearToClass
+    ? appearToClass
+    : enterToClass;
+
+  var beforeEnterHook = isAppear
+    ? (beforeAppear || beforeEnter)
+    : beforeEnter;
+  var enterHook = isAppear
+    ? (typeof appear === 'function' ? appear : enter)
+    : enter;
+  var afterEnterHook = isAppear
+    ? (afterAppear || afterEnter)
+    : afterEnter;
+  var enterCancelledHook = isAppear
+    ? (appearCancelled || enterCancelled)
+    : enterCancelled;
+
+  var explicitEnterDuration = toNumber(
+    isObject(duration)
+      ? duration.enter
+      : duration
+  );
+
+  if (explicitEnterDuration != null) {
+    checkDuration(explicitEnterDuration, 'enter', vnode);
+  }
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(enterHook);
+
+  var cb = el._enterCb = once(function () {
+    if (expectsCSS) {
+      removeTransitionClass(el, toClass);
+      removeTransitionClass(el, activeClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, startClass);
+      }
+      enterCancelledHook && enterCancelledHook(el);
+    } else {
+      afterEnterHook && afterEnterHook(el);
+    }
+    el._enterCb = null;
+  });
+
+  if (!vnode.data.show) {
+    // remove pending leave element on enter by injecting an insert hook
+    mergeVNodeHook(vnode, 'insert', function () {
+      var parent = el.parentNode;
+      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
+      if (pendingNode &&
+        pendingNode.tag === vnode.tag &&
+        pendingNode.elm._leaveCb
+      ) {
+        pendingNode.elm._leaveCb();
+      }
+      enterHook && enterHook(el, cb);
+    });
+  }
+
+  // start enter transition
+  beforeEnterHook && beforeEnterHook(el);
+  if (expectsCSS) {
+    addTransitionClass(el, startClass);
+    addTransitionClass(el, activeClass);
+    nextFrame(function () {
+      removeTransitionClass(el, startClass);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
+        }
+      }
+    });
+  }
+
+  if (vnode.data.show) {
+    toggleDisplay && toggleDisplay();
+    enterHook && enterHook(el, cb);
+  }
+
+  if (!expectsCSS && !userWantsControl) {
+    cb();
+  }
+}
+
+function leave (vnode, rm) {
+  var el = vnode.elm;
+
+  // call enter callback now
+  if (isDef(el._enterCb)) {
+    el._enterCb.cancelled = true;
+    el._enterCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data) || el.nodeType !== 1) {
+    return rm()
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._leaveCb)) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var leaveClass = data.leaveClass;
+  var leaveToClass = data.leaveToClass;
+  var leaveActiveClass = data.leaveActiveClass;
+  var beforeLeave = data.beforeLeave;
+  var leave = data.leave;
+  var afterLeave = data.afterLeave;
+  var leaveCancelled = data.leaveCancelled;
+  var delayLeave = data.delayLeave;
+  var duration = data.duration;
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(leave);
+
+  var explicitLeaveDuration = toNumber(
+    isObject(duration)
+      ? duration.leave
+      : duration
+  );
+
+  if (isDef(explicitLeaveDuration)) {
+    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  }
+
+  var cb = el._leaveCb = once(function () {
+    if (el.parentNode && el.parentNode._pending) {
+      el.parentNode._pending[vnode.key] = null;
+    }
+    if (expectsCSS) {
+      removeTransitionClass(el, leaveToClass);
+      removeTransitionClass(el, leaveActiveClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveClass);
+      }
+      leaveCancelled && leaveCancelled(el);
+    } else {
+      rm();
+      afterLeave && afterLeave(el);
+    }
+    el._leaveCb = null;
+  });
+
+  if (delayLeave) {
+    delayLeave(performLeave);
+  } else {
+    performLeave();
+  }
+
+  function performLeave () {
+    // the delayed leave may have already been cancelled
+    if (cb.cancelled) {
+      return
+    }
+    // record leaving element
+    if (!vnode.data.show && el.parentNode) {
+      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+    }
+    beforeLeave && beforeLeave(el);
+    if (expectsCSS) {
+      addTransitionClass(el, leaveClass);
+      addTransitionClass(el, leaveActiveClass);
+      nextFrame(function () {
+        removeTransitionClass(el, leaveClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
+          }
+        }
+      });
+    }
+    leave && leave(el, cb);
+    if (!expectsCSS && !userWantsControl) {
+      cb();
+    }
+  }
+}
+
+// only used in dev mode
+function checkDuration (val, name, vnode) {
+  if (typeof val !== 'number') {
+    warn(
+      "<transition> explicit " + name + " duration is not a valid number - " +
+      "got " + (JSON.stringify(val)) + ".",
+      vnode.context
+    );
+  } else if (isNaN(val)) {
+    warn(
+      "<transition> explicit " + name + " duration is NaN - " +
+      'the duration expression might be incorrect.',
+      vnode.context
+    );
+  }
+}
+
+function isValidDuration (val) {
+  return typeof val === 'number' && !isNaN(val)
+}
+
+/**
+ * Normalize a transition hook's argument length. The hook may be:
+ * - a merged hook (invoker) with the original in .fns
+ * - a wrapped component method (check ._length)
+ * - a plain function (.length)
+ */
+function getHookArgumentsLength (fn) {
+  if (isUndef(fn)) {
+    return false
+  }
+  var invokerFns = fn.fns;
+  if (isDef(invokerFns)) {
+    // invoker
+    return getHookArgumentsLength(
+      Array.isArray(invokerFns)
+        ? invokerFns[0]
+        : invokerFns
+    )
+  } else {
+    return (fn._length || fn.length) > 1
+  }
+}
+
+function _enter (_, vnode) {
+  if (vnode.data.show !== true) {
+    enter(vnode);
+  }
+}
+
+var transition = inBrowser ? {
+  create: _enter,
+  activate: _enter,
+  remove: function remove$$1 (vnode, rm) {
+    /* istanbul ignore else */
+    if (vnode.data.show !== true) {
+      leave(vnode, rm);
+    } else {
+      rm();
+    }
+  }
+} : {};
+
+var platformModules = [
+  attrs,
+  klass,
+  events,
+  domProps,
+  style,
+  transition
+];
+
+/*  */
+
+// the directive module should be applied last, after all
+// built-in modules have been applied.
+var modules = platformModules.concat(baseModules);
+
+var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
+
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', function () {
+    var el = document.activeElement;
+    if (el && el.vmodel) {
+      trigger(el, 'input');
+    }
+  });
+}
+
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
+    if (vnode.tag === 'select') {
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
+      el._vOptions = [].map.call(el.options, getValue);
+    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+      el._vModifiers = binding.modifiers;
+      if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
+        // Safari < 10.2 & UIWebView doesn't fire compositionend when
+        // switching focus before confirming composition choice
+        // this also fixes the issue where some browsers e.g. iOS Chrome
+        // fires "change" instead of "input" on autocomplete.
+        el.addEventListener('change', onCompositionEnd);
+        /* istanbul ignore if */
+        if (isIE9) {
+          el.vmodel = true;
+        }
+      }
+    }
+  },
+
+  componentUpdated: function componentUpdated (el, binding, vnode) {
+    if (vnode.tag === 'select') {
+      setSelected(el, binding, vnode.context);
+      // in case the options rendered by v-for have changed,
+      // it's possible that the value is out-of-sync with the rendered options.
+      // detect such cases and filter out values that no longer has a matching
+      // option in the DOM.
+      var prevOptions = el._vOptions;
+      var curOptions = el._vOptions = [].map.call(el.options, getValue);
+      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
+      }
+    }
+  }
+};
+
+function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  var value = binding.value;
+  var isMultiple = el.multiple;
+  if (isMultiple && !Array.isArray(value)) {
+    warn(
+      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
+      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
+      vm
+    );
+    return
+  }
+  var selected, option;
+  for (var i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i];
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1;
+      if (option.selected !== selected) {
+        option.selected = selected;
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i;
+        }
+        return
+      }
+    }
+  }
+  if (!isMultiple) {
+    el.selectedIndex = -1;
+  }
+}
+
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
+function getValue (option) {
+  return '_value' in option
+    ? option._value
+    : option.value
+}
+
+function onCompositionStart (e) {
+  e.target.composing = true;
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) { return }
+  e.target.composing = false;
+  trigger(e.target, 'input');
+}
+
+function trigger (el, type) {
+  var e = document.createEvent('HTMLEvents');
+  e.initEvent(type, true, true);
+  el.dispatchEvent(e);
+}
+
+/*  */
+
+// recursively search for possible transition defined inside the component root
+function locateNode (vnode) {
+  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+    ? locateNode(vnode.componentInstance._vnode)
+    : vnode
+}
+
+var show = {
+  bind: function bind (el, ref, vnode) {
+    var value = ref.value;
+
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    var originalDisplay = el.__vOriginalDisplay =
+      el.style.display === 'none' ? '' : el.style.display;
+    if (value && transition$$1) {
+      vnode.data.show = true;
+      enter(vnode, function () {
+        el.style.display = originalDisplay;
+      });
+    } else {
+      el.style.display = value ? originalDisplay : 'none';
+    }
+  },
+
+  update: function update (el, ref, vnode) {
+    var value = ref.value;
+    var oldValue = ref.oldValue;
+
+    /* istanbul ignore if */
+    if (!value === !oldValue) { return }
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    if (transition$$1) {
+      vnode.data.show = true;
+      if (value) {
+        enter(vnode, function () {
+          el.style.display = el.__vOriginalDisplay;
+        });
+      } else {
+        leave(vnode, function () {
+          el.style.display = 'none';
+        });
+      }
+    } else {
+      el.style.display = value ? el.__vOriginalDisplay : 'none';
+    }
+  },
+
+  unbind: function unbind (
+    el,
+    binding,
+    vnode,
+    oldVnode,
+    isDestroy
+  ) {
+    if (!isDestroy) {
+      el.style.display = el.__vOriginalDisplay;
+    }
+  }
+};
+
+var platformDirectives = {
+  model: directive,
+  show: show
+};
+
+/*  */
+
+var transitionProps = {
+  name: String,
+  appear: Boolean,
+  css: Boolean,
+  mode: String,
+  type: String,
+  enterClass: String,
+  leaveClass: String,
+  enterToClass: String,
+  leaveToClass: String,
+  enterActiveClass: String,
+  leaveActiveClass: String,
+  appearClass: String,
+  appearActiveClass: String,
+  appearToClass: String,
+  duration: [Number, String, Object]
+};
+
+// in case the child is also an abstract component, e.g. <keep-alive>
+// we want to recursively retrieve the real component to be rendered
+function getRealChild (vnode) {
+  var compOptions = vnode && vnode.componentOptions;
+  if (compOptions && compOptions.Ctor.options.abstract) {
+    return getRealChild(getFirstComponentChild(compOptions.children))
+  } else {
+    return vnode
+  }
+}
+
+function extractTransitionData (comp) {
+  var data = {};
+  var options = comp.$options;
+  // props
+  for (var key in options.propsData) {
+    data[key] = comp[key];
+  }
+  // events.
+  // extract listeners and pass them directly to the transition methods
+  var listeners = options._parentListeners;
+  for (var key$1 in listeners) {
+    data[camelize(key$1)] = listeners[key$1];
+  }
+  return data
+}
+
+function placeholder (h, rawChild) {
+  if (/\d-keep-alive$/.test(rawChild.tag)) {
+    return h('keep-alive', {
+      props: rawChild.componentOptions.propsData
+    })
+  }
+}
+
+function hasParentTransition (vnode) {
+  while ((vnode = vnode.parent)) {
+    if (vnode.data.transition) {
+      return true
+    }
+  }
+}
+
+function isSameChild (child, oldChild) {
+  return oldChild.key === child.key && oldChild.tag === child.tag
+}
+
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
+var Transition = {
+  name: 'transition',
+  props: transitionProps,
+  abstract: true,
+
+  render: function render (h) {
+    var this$1 = this;
+
+    var children = this.$slots.default;
+    if (!children) {
+      return
+    }
+
+    // filter out text nodes (possible whitespaces)
+    children = children.filter(isNotTextNode);
+    /* istanbul ignore if */
+    if (!children.length) {
+      return
+    }
+
+    // warn multiple elements
+    if (children.length > 1) {
+      warn(
+        '<transition> can only be used on a single element. Use ' +
+        '<transition-group> for lists.',
+        this.$parent
+      );
+    }
+
+    var mode = this.mode;
+
+    // warn invalid mode
+    if (mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
+      warn(
+        'invalid <transition> mode: ' + mode,
+        this.$parent
+      );
+    }
+
+    var rawChild = children[0];
+
+    // if this is a component root node and the component's
+    // parent container node also has transition, skip.
+    if (hasParentTransition(this.$vnode)) {
+      return rawChild
+    }
+
+    // apply transition data to child
+    // use getRealChild() to ignore abstract components e.g. keep-alive
+    var child = getRealChild(rawChild);
+    /* istanbul ignore if */
+    if (!child) {
+      return rawChild
+    }
+
+    if (this._leaving) {
+      return placeholder(h, rawChild)
+    }
+
+    // ensure a key that is unique to the vnode type and to this transition
+    // component instance. This key will be used to remove pending leaving nodes
+    // during entering.
+    var id = "__transition-" + (this._uid) + "-";
+    child.key = child.key == null
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
+      : isPrimitive(child.key)
+        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+        : child.key;
+
+    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+    var oldRawChild = this._vnode;
+    var oldChild = getRealChild(oldRawChild);
+
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
+      child.data.show = true;
+    }
+
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+    ) {
+      // replace old child transition data with fresh one
+      // important for dynamic transitions!
+      var oldData = oldChild.data.transition = extend({}, data);
+      // handle transition mode
+      if (mode === 'out-in') {
+        // return placeholder node and queue update when leave finishes
+        this._leaving = true;
+        mergeVNodeHook(oldData, 'afterLeave', function () {
+          this$1._leaving = false;
+          this$1.$forceUpdate();
+        });
+        return placeholder(h, rawChild)
+      } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
+        var delayedLeave;
+        var performLeave = function () { delayedLeave(); };
+        mergeVNodeHook(data, 'afterEnter', performLeave);
+        mergeVNodeHook(data, 'enterCancelled', performLeave);
+        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+      }
+    }
+
+    return rawChild
+  }
+};
+
+/*  */
+
+var props = extend({
+  tag: String,
+  moveClass: String
+}, transitionProps);
+
+delete props.mode;
+
+var TransitionGroup = {
+  props: props,
+
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
+  render: function render (h) {
+    var tag = this.tag || this.$vnode.data.tag || 'span';
+    var map = Object.create(null);
+    var prevChildren = this.prevChildren = this.children;
+    var rawChildren = this.$slots.default || [];
+    var children = this.children = [];
+    var transitionData = extractTransitionData(this);
+
+    for (var i = 0; i < rawChildren.length; i++) {
+      var c = rawChildren[i];
+      if (c.tag) {
+        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+          children.push(c);
+          map[c.key] = c
+          ;(c.data || (c.data = {})).transition = transitionData;
+        } else {
+          var opts = c.componentOptions;
+          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+          warn(("<transition-group> children must be keyed: <" + name + ">"));
+        }
+      }
+    }
+
+    if (prevChildren) {
+      var kept = [];
+      var removed = [];
+      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
+        var c$1 = prevChildren[i$1];
+        c$1.data.transition = transitionData;
+        c$1.data.pos = c$1.elm.getBoundingClientRect();
+        if (map[c$1.key]) {
+          kept.push(c$1);
+        } else {
+          removed.push(c$1);
+        }
+      }
+      this.kept = h(tag, null, kept);
+      this.removed = removed;
+    }
+
+    return h(tag, null, children)
+  },
+
+  updated: function updated () {
+    var children = this.prevChildren;
+    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
+    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+      return
+    }
+
+    // we divide the work into three loops to avoid mixing DOM reads and writes
+    // in each iteration - which helps prevent layout thrashing.
+    children.forEach(callPendingCbs);
+    children.forEach(recordPosition);
+    children.forEach(applyTranslation);
+
+    // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
+    children.forEach(function (c) {
+      if (c.data.moved) {
+        var el = c.elm;
+        var s = el.style;
+        addTransitionClass(el, moveClass);
+        s.transform = s.WebkitTransform = s.transitionDuration = '';
+        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
+          if (!e || /transform$/.test(e.propertyName)) {
+            el.removeEventListener(transitionEndEvent, cb);
+            el._moveCb = null;
+            removeTransitionClass(el, moveClass);
+          }
+        });
+      }
+    });
+  },
+
+  methods: {
+    hasMove: function hasMove (el, moveClass) {
+      /* istanbul ignore if */
+      if (!hasTransition) {
+        return false
+      }
+      /* istanbul ignore if */
+      if (this._hasMove) {
+        return this._hasMove
+      }
+      // Detect whether an element with the move class applied has
+      // CSS transitions. Since the element may be inside an entering
+      // transition at this very moment, we make a clone of it and remove
+      // all other transition classes applied to ensure only the move class
+      // is applied.
+      var clone = el.cloneNode();
+      if (el._transitionClasses) {
+        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+      }
+      addClass(clone, moveClass);
+      clone.style.display = 'none';
+      this.$el.appendChild(clone);
+      var info = getTransitionInfo(clone);
+      this.$el.removeChild(clone);
+      return (this._hasMove = info.hasTransform)
+    }
+  }
+};
+
+function callPendingCbs (c) {
+  /* istanbul ignore if */
+  if (c.elm._moveCb) {
+    c.elm._moveCb();
+  }
+  /* istanbul ignore if */
+  if (c.elm._enterCb) {
+    c.elm._enterCb();
+  }
+}
+
+function recordPosition (c) {
+  c.data.newPos = c.elm.getBoundingClientRect();
+}
+
+function applyTranslation (c) {
+  var oldPos = c.data.pos;
+  var newPos = c.data.newPos;
+  var dx = oldPos.left - newPos.left;
+  var dy = oldPos.top - newPos.top;
+  if (dx || dy) {
+    c.data.moved = true;
+    var s = c.elm.style;
+    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
+    s.transitionDuration = '0s';
+  }
+}
+
+var platformComponents = {
+  Transition: Transition,
+  TransitionGroup: TransitionGroup
+};
+
+/*  */
+
+// install platform specific utils
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
+
+// install platform runtime directives & components
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
+
+// install platform patch function
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
+
+// public mount method
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && inBrowser ? query(el) : undefined;
+  return mountComponent(this, el, hydrating)
+};
+
+// devtools global hook
+/* istanbul ignore next */
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
+      console[console.info ? 'info' : 'log'](
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
+      );
+    }
+  }, 0);
+}
+
+/*  */
+
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
+var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+var buildRegex = cached(function (delimiters) {
+  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+});
+
+
+
+function parseText (
+  text,
+  delimiters
+) {
+  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+  if (!tagRE.test(text)) {
+    return
+  }
+  var tokens = [];
+  var rawTokens = [];
+  var lastIndex = tagRE.lastIndex = 0;
+  var match, index, tokenValue;
+  while ((match = tagRE.exec(text))) {
+    index = match.index;
+    // push text token
+    if (index > lastIndex) {
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
+    }
+    // tag token
+    var exp = parseFilters(match[1].trim());
+    tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
+    lastIndex = index + match[0].length;
+  }
+  if (lastIndex < text.length) {
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
+  }
+}
+
+/*  */
+
+function transformNode (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticClass = getAndRemoveAttr(el, 'class');
+  if (staticClass) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
+      warn(
+        "class=\"" + staticClass + "\": " +
+        'Interpolation inside attributes has been removed. ' +
+        'Use v-bind or the colon shorthand instead. For example, ' +
+        'instead of <div class="{{ val }}">, use <div :class="val">.'
+      );
+    }
+  }
+  if (staticClass) {
+    el.staticClass = JSON.stringify(staticClass);
+  }
+  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+  if (classBinding) {
+    el.classBinding = classBinding;
+  }
+}
+
+function genData (el) {
+  var data = '';
+  if (el.staticClass) {
+    data += "staticClass:" + (el.staticClass) + ",";
+  }
+  if (el.classBinding) {
+    data += "class:" + (el.classBinding) + ",";
+  }
+  return data
+}
+
+var klass$1 = {
+  staticKeys: ['staticClass'],
+  transformNode: transformNode,
+  genData: genData
+};
+
+/*  */
+
+function transformNode$1 (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticStyle = getAndRemoveAttr(el, 'style');
+  if (staticStyle) {
+    /* istanbul ignore if */
+    {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
+        warn(
+          "style=\"" + staticStyle + "\": " +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div style="{{ val }}">, use <div :style="val">.'
+        );
+      }
+    }
+    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+  }
+
+  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+  if (styleBinding) {
+    el.styleBinding = styleBinding;
+  }
+}
+
+function genData$1 (el) {
+  var data = '';
+  if (el.staticStyle) {
+    data += "staticStyle:" + (el.staticStyle) + ",";
+  }
+  if (el.styleBinding) {
+    data += "style:(" + (el.styleBinding) + "),";
+  }
+  return data
+}
+
+var style$1 = {
+  staticKeys: ['staticStyle'],
+  transformNode: transformNode$1,
+  genData: genData$1
+};
+
+/*  */
+
+var decoder;
+
+var he = {
+  decode: function decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
+  }
+};
+
+/*  */
+
+var isUnaryTag = makeMap(
+  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+  'link,meta,param,source,track,wbr'
+);
+
+// Elements that you can, intentionally, leave open
+// (and which close themselves)
+var canBeLeftOpenTag = makeMap(
+  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+);
+
+// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+var isNonPhrasingTag = makeMap(
+  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+  'title,tr,track'
+);
+
+/**
+ * Not type-checking this file because it's mostly vendor code.
+ */
+
+// Regular Expressions for parsing tags and attributes
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
+// but for Vue templates we can enforce a simple charset
+var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
+var startTagClose = /^\s*(\/?)>/;
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+var doctype = /^<!DOCTYPE [^>]+>/i;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
+var conditionalComment = /^<!\[/;
+
+// Special Elements (can contain anything)
+var isPlainTextElement = makeMap('script,style,textarea', true);
+var reCache = {};
+
+var decodingMap = {
+  '&lt;': '<',
+  '&gt;': '>',
+  '&quot;': '"',
+  '&amp;': '&',
+  '&#10;': '\n',
+  '&#9;': '\t'
+};
+var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+// #5992
+var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+function decodeAttr (value, shouldDecodeNewlines) {
+  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+  return value.replace(re, function (match) { return decodingMap[match]; })
+}
+
+function parseHTML (html, options) {
+  var stack = [];
+  var expectHTML = options.expectHTML;
+  var isUnaryTag$$1 = options.isUnaryTag || no;
+  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+  var index = 0;
+  var last, lastTag;
+  while (html) {
+    last = html;
+    // Make sure we're not in a plaintext content element like script/style
+    if (!lastTag || !isPlainTextElement(lastTag)) {
+      var textEnd = html.indexOf('<');
+      if (textEnd === 0) {
+        // Comment:
+        if (comment.test(html)) {
+          var commentEnd = html.indexOf('-->');
+
+          if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd));
+            }
+            advance(commentEnd + 3);
+            continue
+          }
+        }
+
+        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+        if (conditionalComment.test(html)) {
+          var conditionalEnd = html.indexOf(']>');
+
+          if (conditionalEnd >= 0) {
+            advance(conditionalEnd + 2);
+            continue
+          }
+        }
+
+        // Doctype:
+        var doctypeMatch = html.match(doctype);
+        if (doctypeMatch) {
+          advance(doctypeMatch[0].length);
+          continue
+        }
+
+        // End tag:
+        var endTagMatch = html.match(endTag);
+        if (endTagMatch) {
+          var curIndex = index;
+          advance(endTagMatch[0].length);
+          parseEndTag(endTagMatch[1], curIndex, index);
+          continue
+        }
+
+        // Start tag:
+        var startTagMatch = parseStartTag();
+        if (startTagMatch) {
+          handleStartTag(startTagMatch);
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
+            advance(1);
+          }
+          continue
+        }
+      }
+
+      var text = (void 0), rest = (void 0), next = (void 0);
+      if (textEnd >= 0) {
+        rest = html.slice(textEnd);
+        while (
+          !endTag.test(rest) &&
+          !startTagOpen.test(rest) &&
+          !comment.test(rest) &&
+          !conditionalComment.test(rest)
+        ) {
+          // < in plain text, be forgiving and treat it as text
+          next = rest.indexOf('<', 1);
+          if (next < 0) { break }
+          textEnd += next;
+          rest = html.slice(textEnd);
+        }
+        text = html.substring(0, textEnd);
+        advance(textEnd);
+      }
+
+      if (textEnd < 0) {
+        text = html;
+        html = '';
+      }
+
+      if (options.chars && text) {
+        options.chars(text);
+      }
+    } else {
+      var endTagLength = 0;
+      var stackedTag = lastTag.toLowerCase();
+      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+        endTagLength = endTag.length;
+        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+          text = text
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+        }
+        if (shouldIgnoreFirstNewline(stackedTag, text)) {
+          text = text.slice(1);
+        }
+        if (options.chars) {
+          options.chars(text);
+        }
+        return ''
+      });
+      index += html.length - rest$1.length;
+      html = rest$1;
+      parseEndTag(stackedTag, index - endTagLength, index);
+    }
+
+    if (html === last) {
+      options.chars && options.chars(html);
+      if (!stack.length && options.warn) {
+        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+      }
+      break
+    }
+  }
+
+  // Clean up any remaining tags
+  parseEndTag();
+
+  function advance (n) {
+    index += n;
+    html = html.substring(n);
+  }
+
+  function parseStartTag () {
+    var start = html.match(startTagOpen);
+    if (start) {
+      var match = {
+        tagName: start[1],
+        attrs: [],
+        start: index
+      };
+      advance(start[0].length);
+      var end, attr;
+      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        advance(attr[0].length);
+        match.attrs.push(attr);
+      }
+      if (end) {
+        match.unarySlash = end[1];
+        advance(end[0].length);
+        match.end = index;
+        return match
+      }
+    }
+  }
+
+  function handleStartTag (match) {
+    var tagName = match.tagName;
+    var unarySlash = match.unarySlash;
+
+    if (expectHTML) {
+      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+        parseEndTag(lastTag);
+      }
+      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+        parseEndTag(tagName);
+      }
+    }
+
+    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+    var l = match.attrs.length;
+    var attrs = new Array(l);
+    for (var i = 0; i < l; i++) {
+      var args = match.attrs[i];
+      var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
+      attrs[i] = {
+        name: args[1],
+        value: decodeAttr(value, shouldDecodeNewlines)
+      };
+    }
+
+    if (!unary) {
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+      lastTag = tagName;
+    }
+
+    if (options.start) {
+      options.start(tagName, attrs, unary, match.start, match.end);
+    }
+  }
+
+  function parseEndTag (tagName, start, end) {
+    var pos, lowerCasedTagName;
+    if (start == null) { start = index; }
+    if (end == null) { end = index; }
+
+    // Find the closest opened tag of the same type
+    if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
+      for (pos = stack.length - 1; pos >= 0; pos--) {
+        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+          break
+        }
+      }
+    } else {
+      // If no tag name is provided, clean shop
+      pos = 0;
+    }
+
+    if (pos >= 0) {
+      // Close all the open elements, up the stack
+      for (var i = stack.length - 1; i >= pos; i--) {
+        if (i > pos || !tagName &&
+          options.warn
+        ) {
+          options.warn(
+            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+          );
+        }
+        if (options.end) {
+          options.end(stack[i].tag, start, end);
+        }
+      }
+
+      // Remove the open elements from the stack
+      stack.length = pos;
+      lastTag = pos && stack[pos - 1].tag;
+    } else if (lowerCasedTagName === 'br') {
+      if (options.start) {
+        options.start(tagName, [], true, start, end);
+      }
+    } else if (lowerCasedTagName === 'p') {
+      if (options.start) {
+        options.start(tagName, [], false, start, end);
+      }
+      if (options.end) {
+        options.end(tagName, start, end);
+      }
+    }
+  }
+}
+
+/*  */
+
+var onRE = /^@|^v-on:/;
+var dirRE = /^v-|^@|^:/;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+var stripParensRE = /^\(|\)$/g;
+
+var argRE = /:(.*)$/;
+var bindRE = /^:|^v-bind:/;
+var modifierRE = /\.[^.]+/g;
+
+var decodeHTMLCached = cached(he.decode);
+
+// configurable state
+var warn$2;
+var delimiters;
+var transforms;
+var preTransforms;
+var postTransforms;
+var platformIsPreTag;
+var platformMustUseProp;
+var platformGetTagNamespace;
+
+
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    parent: parent,
+    children: []
+  }
+}
+
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+  template,
+  options
+) {
+  warn$2 = options.warn || baseWarn;
+
+  platformIsPreTag = options.isPreTag || no;
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
+
+  transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+  delimiters = options.delimiters;
+
+  var stack = [];
+  var preserveWhitespace = options.preserveWhitespace !== false;
+  var root;
+  var currentParent;
+  var inVPre = false;
+  var inPre = false;
+  var warned = false;
+
+  function warnOnce (msg) {
+    if (!warned) {
+      warned = true;
+      warn$2(msg);
+    }
+  }
+
+  function closeElement (element) {
+    // check pre state
+    if (element.pre) {
+      inVPre = false;
+    }
+    if (platformIsPreTag(element.tag)) {
+      inPre = false;
+    }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
+  }
+
+  parseHTML(template, {
+    warn: warn$2,
+    expectHTML: options.expectHTML,
+    isUnaryTag: options.isUnaryTag,
+    canBeLeftOpenTag: options.canBeLeftOpenTag,
+    shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+    shouldKeepComment: options.comments,
+    start: function start (tag, attrs, unary) {
+      // check namespace.
+      // inherit parent ns if there is one
+      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+      // handle IE svg bug
+      /* istanbul ignore if */
+      if (isIE && ns === 'svg') {
+        attrs = guardIESVGBug(attrs);
+      }
+
+      var element = createASTElement(tag, attrs, currentParent);
+      if (ns) {
+        element.ns = ns;
+      }
+
+      if (isForbiddenTag(element) && !isServerRendering()) {
+        element.forbidden = true;
+        warn$2(
+          'Templates should only be responsible for mapping the state to the ' +
+          'UI. Avoid placing tags with side-effects in your templates, such as ' +
+          "<" + tag + ">" + ', as they will not be parsed.'
+        );
+      }
+
+      // apply pre-transforms
+      for (var i = 0; i < preTransforms.length; i++) {
+        element = preTransforms[i](element, options) || element;
+      }
+
+      if (!inVPre) {
+        processPre(element);
+        if (element.pre) {
+          inVPre = true;
+        }
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = true;
+      }
+      if (inVPre) {
+        processRawAttrs(element);
+      } else if (!element.processed) {
+        // structural directives
+        processFor(element);
+        processIf(element);
+        processOnce(element);
+        // element-scope stuff
+        processElement(element, options);
+      }
+
+      function checkRootConstraints (el) {
+        {
+          if (el.tag === 'slot' || el.tag === 'template') {
+            warnOnce(
+              "Cannot use <" + (el.tag) + "> as component root element because it may " +
+              'contain multiple nodes.'
+            );
+          }
+          if (el.attrsMap.hasOwnProperty('v-for')) {
+            warnOnce(
+              'Cannot use v-for on stateful component root element because ' +
+              'it renders multiple elements.'
+            );
+          }
+        }
+      }
+
+      // tree management
+      if (!root) {
+        root = element;
+        checkRootConstraints(root);
+      } else if (!stack.length) {
+        // allow root elements with v-if, v-else-if and v-else
+        if (root.if && (element.elseif || element.else)) {
+          checkRootConstraints(element);
+          addIfCondition(root, {
+            exp: element.elseif,
+            block: element
+          });
+        } else {
+          warnOnce(
+            "Component template should contain exactly one root element. " +
+            "If you are using v-if on multiple elements, " +
+            "use v-else-if to chain them instead."
+          );
+        }
+      }
+      if (currentParent && !element.forbidden) {
+        if (element.elseif || element.else) {
+          processIfConditions(element, currentParent);
+        } else if (element.slotScope) { // scoped slot
+          currentParent.plain = false;
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        } else {
+          currentParent.children.push(element);
+          element.parent = currentParent;
+        }
+      }
+      if (!unary) {
+        currentParent = element;
+        stack.push(element);
+      } else {
+        closeElement(element);
+      }
+    },
+
+    end: function end () {
+      // remove trailing whitespace
+      var element = stack[stack.length - 1];
+      var lastNode = element.children[element.children.length - 1];
+      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
+        element.children.pop();
+      }
+      // pop stack
+      stack.length -= 1;
+      currentParent = stack[stack.length - 1];
+      closeElement(element);
+    },
+
+    chars: function chars (text) {
+      if (!currentParent) {
+        {
+          if (text === template) {
+            warnOnce(
+              'Component template requires a root element, rather than just text.'
+            );
+          } else if ((text = text.trim())) {
+            warnOnce(
+              ("text \"" + text + "\" outside root element will be ignored.")
+            );
+          }
+        }
+        return
+      }
+      // IE textarea placeholder bug
+      /* istanbul ignore if */
+      if (isIE &&
+        currentParent.tag === 'textarea' &&
+        currentParent.attrsMap.placeholder === text
+      ) {
+        return
+      }
+      var children = currentParent.children;
+      text = inPre || text.trim()
+        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
+        // only preserve whitespace if its not right after a starting tag
+        : preserveWhitespace && children.length ? ' ' : '';
+      if (text) {
+        var res;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+          children.push({
+            type: 2,
+            expression: res.expression,
+            tokens: res.tokens,
+            text: text
+          });
+        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+          children.push({
+            type: 3,
+            text: text
+          });
+        }
+      }
+    },
+    comment: function comment (text) {
+      currentParent.children.push({
+        type: 3,
+        text: text,
+        isComment: true
+      });
+    }
+  });
+  return root
+}
+
+function processPre (el) {
+  if (getAndRemoveAttr(el, 'v-pre') != null) {
+    el.pre = true;
+  }
+}
+
+function processRawAttrs (el) {
+  var l = el.attrsList.length;
+  if (l) {
+    var attrs = el.attrs = new Array(l);
+    for (var i = 0; i < l; i++) {
+      attrs[i] = {
+        name: el.attrsList[i].name,
+        value: JSON.stringify(el.attrsList[i].value)
+      };
+    }
+  } else if (!el.pre) {
+    // non root node in pre blocks with no attributes
+    el.plain = true;
+  }
+}
+
+function processElement (element, options) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = !element.key && !element.attrsList.length;
+
+  processRef(element);
+  processSlot(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+}
+
+function processKey (el) {
+  var exp = getBindingAttr(el, 'key');
+  if (exp) {
+    {
+      if (el.tag === 'template') {
+        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transtion-group> children, " +
+            "this is the same as not using keys."
+          );
+        }
+      }
+    }
+    el.key = exp;
+  }
+}
+
+function processRef (el) {
+  var ref = getBindingAttr(el, 'ref');
+  if (ref) {
+    el.ref = ref;
+    el.refInFor = checkInFor(el);
+  }
+}
+
+function processFor (el) {
+  var exp;
+  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else {
+      warn$2(
+        ("Invalid v-for expression: " + exp)
+      );
+    }
+  }
+}
+
+
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '').trim();
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
+    }
+  } else {
+    res.alias = alias;
+  }
+  return res
+}
+
+function processIf (el) {
+  var exp = getAndRemoveAttr(el, 'v-if');
+  if (exp) {
+    el.if = exp;
+    addIfCondition(el, {
+      exp: exp,
+      block: el
+    });
+  } else {
+    if (getAndRemoveAttr(el, 'v-else') != null) {
+      el.else = true;
+    }
+    var elseif = getAndRemoveAttr(el, 'v-else-if');
+    if (elseif) {
+      el.elseif = elseif;
+    }
+  }
+}
+
+function processIfConditions (el, parent) {
+  var prev = findPrevElement(parent.children);
+  if (prev && prev.if) {
+    addIfCondition(prev, {
+      exp: el.elseif,
+      block: el
+    });
+  } else {
+    warn$2(
+      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+      "used on element <" + (el.tag) + "> without corresponding v-if."
+    );
+  }
+}
+
+function findPrevElement (children) {
+  var i = children.length;
+  while (i--) {
+    if (children[i].type === 1) {
+      return children[i]
+    } else {
+      if (children[i].text !== ' ') {
+        warn$2(
+          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+          "will be ignored."
+        );
+      }
+      children.pop();
+    }
+  }
+}
+
+function addIfCondition (el, condition) {
+  if (!el.ifConditions) {
+    el.ifConditions = [];
+  }
+  el.ifConditions.push(condition);
+}
+
+function processOnce (el) {
+  var once$$1 = getAndRemoveAttr(el, 'v-once');
+  if (once$$1 != null) {
+    el.once = true;
+  }
+}
+
+function processSlot (el) {
+  if (el.tag === 'slot') {
+    el.slotName = getBindingAttr(el, 'name');
+    if (el.key) {
+      warn$2(
+        "`key` does not work on <slot> because slots are abstract outlets " +
+        "and can possibly expand into multiple elements. " +
+        "Use the key on a wrapping element instead."
+      );
+    }
+  } else {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (slotScope) {
+        warn$2(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          true
+        );
+      }
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (el.attrsMap['v-for']) {
+        warn$2(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          true
+        );
+      }
+      el.slotScope = slotScope;
+    }
+    var slotTarget = getBindingAttr(el, 'slot');
+    if (slotTarget) {
+      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      // only for non-scoped slots.
+      if (el.tag !== 'template' && !el.slotScope) {
+        addAttr(el, 'slot', slotTarget);
+      }
+    }
+  }
+}
+
+function processComponent (el) {
+  var binding;
+  if ((binding = getBindingAttr(el, 'is'))) {
+    el.component = binding;
+  }
+  if (getAndRemoveAttr(el, 'inline-template') != null) {
+    el.inlineTemplate = true;
+  }
+}
+
+function processAttrs (el) {
+  var list = el.attrsList;
+  var i, l, name, rawName, value, modifiers, isProp;
+  for (i = 0, l = list.length; i < l; i++) {
+    name = rawName = list[i].name;
+    value = list[i].value;
+    if (dirRE.test(name)) {
+      // mark element as dynamic
+      el.hasBindings = true;
+      // modifiers
+      modifiers = parseModifiers(name);
+      if (modifiers) {
+        name = name.replace(modifierRE, '');
+      }
+      if (bindRE.test(name)) { // v-bind
+        name = name.replace(bindRE, '');
+        value = parseFilters(value);
+        isProp = false;
+        if (
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
+        if (modifiers) {
+          if (modifiers.prop) {
+            isProp = true;
+            name = camelize(name);
+            if (name === 'innerHtml') { name = 'innerHTML'; }
+          }
+          if (modifiers.camel) {
+            name = camelize(name);
+          }
+          if (modifiers.sync) {
+            addHandler(
+              el,
+              ("update:" + (camelize(name))),
+              genAssignmentCode(value, "$event")
+            );
+          }
+        }
+        if (isProp || (
+          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+        )) {
+          addProp(el, name, value);
+        } else {
+          addAttr(el, name, value);
+        }
+      } else if (onRE.test(name)) { // v-on
+        name = name.replace(onRE, '');
+        addHandler(el, name, value, modifiers, false, warn$2);
+      } else { // normal directives
+        name = name.replace(dirRE, '');
+        // parse arg
+        var argMatch = name.match(argRE);
+        var arg = argMatch && argMatch[1];
+        if (arg) {
+          name = name.slice(0, -(arg.length + 1));
+        }
+        addDirective(el, name, rawName, value, arg, modifiers);
+        if (name === 'model') {
+          checkForAliasModel(el, value);
+        }
+      }
+    } else {
+      // literal attribute
+      {
+        var res = parseText(value, delimiters);
+        if (res) {
+          warn$2(
+            name + "=\"" + value + "\": " +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div id="{{ val }}">, use <div :id="val">.'
+          );
+        }
+      }
+      addAttr(el, name, JSON.stringify(value));
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true');
+      }
+    }
+  }
+}
+
+function checkInFor (el) {
+  var parent = el;
+  while (parent) {
+    if (parent.for !== undefined) {
+      return true
+    }
+    parent = parent.parent;
+  }
+  return false
+}
+
+function parseModifiers (name) {
+  var match = name.match(modifierRE);
+  if (match) {
+    var ret = {};
+    match.forEach(function (m) { ret[m.slice(1)] = true; });
+    return ret
+  }
+}
+
+function makeAttrsMap (attrs) {
+  var map = {};
+  for (var i = 0, l = attrs.length; i < l; i++) {
+    if (
+      map[attrs[i].name] && !isIE && !isEdge
+    ) {
+      warn$2('duplicate attribute: ' + attrs[i].name);
+    }
+    map[attrs[i].name] = attrs[i].value;
+  }
+  return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+  return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+  return (
+    el.tag === 'style' ||
+    (el.tag === 'script' && (
+      !el.attrsMap.type ||
+      el.attrsMap.type === 'text/javascript'
+    ))
+  )
+}
+
+var ieNSBug = /^xmlns:NS\d+/;
+var ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+  var res = [];
+  for (var i = 0; i < attrs.length; i++) {
+    var attr = attrs[i];
+    if (!ieNSBug.test(attr.name)) {
+      attr.name = attr.name.replace(ieNSPrefix, '');
+      res.push(attr);
+    }
+  }
+  return res
+}
+
+function checkForAliasModel (el, value) {
+  var _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$2(
+        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+        "You are binding v-model directly to a v-for iteration alias. " +
+        "This will not be able to modify the v-for source array because " +
+        "writing to the alias is like modifying a function local variable. " +
+        "Consider using an array of objects and use v-model on an object property instead."
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!map.type && !typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+var model$1 = {
+  preTransformNode: preTransformNode
+};
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$1
+];
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+  }
+}
+
+var directives$1 = {
+  model: model,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
+var isStaticKey;
+var isPlatformReservedTag;
+
+var genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ *    create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+  if (!root) { return }
+  isStaticKey = genStaticKeysCached(options.staticKeys || '');
+  isPlatformReservedTag = options.isReservedTag || no;
+  // first pass: mark all non-static nodes.
+  markStatic$1(root);
+  // second pass: mark static roots.
+  markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+  return makeMap(
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+    (keys ? ',' + keys : '')
+  )
+}
+
+function markStatic$1 (node) {
+  node.static = isStatic(node);
+  if (node.type === 1) {
+    // do not make component slot content static. this avoids
+    // 1. components not able to mutate slot nodes
+    // 2. static slot content fails for hot-reloading
+    if (
+      !isPlatformReservedTag(node.tag) &&
+      node.tag !== 'slot' &&
+      node.attrsMap['inline-template'] == null
+    ) {
+      return
+    }
+    for (var i = 0, l = node.children.length; i < l; i++) {
+      var child = node.children[i];
+      markStatic$1(child);
+      if (!child.static) {
+        node.static = false;
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        var block = node.ifConditions[i$1].block;
+        markStatic$1(block);
+        if (!block.static) {
+          node.static = false;
+        }
+      }
+    }
+  }
+}
+
+function markStaticRoots (node, isInFor) {
+  if (node.type === 1) {
+    if (node.static || node.once) {
+      node.staticInFor = isInFor;
+    }
+    // For a node to qualify as a static root, it should have children that
+    // are not just static text. Otherwise the cost of hoisting out will
+    // outweigh the benefits and it's better off to just always render it fresh.
+    if (node.static && node.children.length && !(
+      node.children.length === 1 &&
+      node.children[0].type === 3
+    )) {
+      node.staticRoot = true;
+      return
+    } else {
+      node.staticRoot = false;
+    }
+    if (node.children) {
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        markStaticRoots(node.children[i], isInFor || !!node.for);
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        markStaticRoots(node.ifConditions[i$1].block, isInFor);
+      }
+    }
+  }
+}
+
+function isStatic (node) {
+  if (node.type === 2) { // expression
+    return false
+  }
+  if (node.type === 3) { // text
+    return true
+  }
+  return !!(node.pre || (
+    !node.hasBindings && // no dynamic bindings
+    !node.if && !node.for && // not v-if or v-for or v-else
+    !isBuiltInTag(node.tag) && // not a built-in
+    isPlatformReservedTag(node.tag) && // not a component
+    !isDirectChildOfTemplateFor(node) &&
+    Object.keys(node).every(isStaticKey)
+  ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+  while (node.parent) {
+    node = node.parent;
+    if (node.tag !== 'template') {
+      return false
+    }
+    if (node.for) {
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
+
+// KeyboardEvent.keyCode aliases
+var keyCodes = {
+  esc: 27,
+  tab: 9,
+  enter: 13,
+  space: 32,
+  up: 38,
+  left: 37,
+  right: 39,
+  down: 40,
+  'delete': [8, 46]
+};
+
+// KeyboardEvent.key aliases
+var keyNames = {
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
+  tab: 'Tab',
+  enter: 'Enter',
+  space: ' ',
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
+  'delete': ['Backspace', 'Delete']
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+var modifierCode = {
+  stop: '$event.stopPropagation();',
+  prevent: '$event.preventDefault();',
+  self: genGuard("$event.target !== $event.currentTarget"),
+  ctrl: genGuard("!$event.ctrlKey"),
+  shift: genGuard("!$event.shiftKey"),
+  alt: genGuard("!$event.altKey"),
+  meta: genGuard("!$event.metaKey"),
+  left: genGuard("'button' in $event && $event.button !== 0"),
+  middle: genGuard("'button' in $event && $event.button !== 1"),
+  right: genGuard("'button' in $event && $event.button !== 2")
+};
+
+function genHandlers (
+  events,
+  isNative
+) {
+  var res = isNative ? 'nativeOn:{' : 'on:{';
+  for (var name in events) {
+    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+  }
+  return res.slice(0, -1) + '}'
+}
+
+function genHandler (
+  name,
+  handler
+) {
+  if (!handler) {
+    return 'function(){}'
+  }
+
+  if (Array.isArray(handler)) {
+    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+  }
+
+  var isMethodPath = simplePathRE.test(handler.value);
+  var isFunctionExpression = fnExpRE.test(handler.value);
+
+  if (!handler.modifiers) {
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    return ("function($event){" + (handler.value) + "}") // inline statement
+  } else {
+    var code = '';
+    var genModifierCode = '';
+    var keys = [];
+    for (var key in handler.modifiers) {
+      if (modifierCode[key]) {
+        genModifierCode += modifierCode[key];
+        // left/right
+        if (keyCodes[key]) {
+          keys.push(key);
+        }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
+      } else {
+        keys.push(key);
+      }
+    }
+    if (keys.length) {
+      code += genKeyFilter(keys);
+    }
+    // Make sure modifiers like prevent and stop get executed after key filtering
+    if (genModifierCode) {
+      code += genModifierCode;
+    }
+    var handlerCode = isMethodPath
+      ? ("return " + (handler.value) + "($event)")
+      : isFunctionExpression
+        ? ("return (" + (handler.value) + ")($event)")
+        : handler.value;
+    return ("function($event){" + code + handlerCode + "}")
+  }
+}
+
+function genKeyFilter (keys) {
+  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+}
+
+function genFilterCode (key) {
+  var keyVal = parseInt(key, 10);
+  if (keyVal) {
+    return ("$event.keyCode!==" + keyVal)
+  }
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
+  )
+}
+
+/*  */
+
+function on (el, dir) {
+  if (dir.modifiers) {
+    warn("v-on without argument does not support modifiers.");
+  }
+  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
+}
+
+/*  */
+
+function bind$1 (el, dir) {
+  el.wrapData = function (code) {
+    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+  };
+}
+
+/*  */
+
+var baseDirectives = {
+  on: on,
+  bind: bind$1,
+  cloak: noop
+};
+
+/*  */
+
+
+
+
+
+var CodegenState = function CodegenState (options) {
+  this.options = options;
+  this.warn = options.warn || baseWarn;
+  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+  this.directives = extend(extend({}, baseDirectives), options.directives);
+  var isReservedTag = options.isReservedTag || no;
+  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+  this.onceId = 0;
+  this.staticRenderFns = [];
+  this.pre = false;
+};
+
+
+
+function generate (
+  ast,
+  options
+) {
+  var state = new CodegenState(options);
+  var code = ast ? genElement(ast, state) : '_c("div")';
+  return {
+    render: ("with(this){return " + code + "}"),
+    staticRenderFns: state.staticRenderFns
+  }
+}
+
+function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
+  if (el.staticRoot && !el.staticProcessed) {
+    return genStatic(el, state)
+  } else if (el.once && !el.onceProcessed) {
+    return genOnce(el, state)
+  } else if (el.for && !el.forProcessed) {
+    return genFor(el, state)
+  } else if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
+    return genChildren(el, state) || 'void 0'
+  } else if (el.tag === 'slot') {
+    return genSlot(el, state)
+  } else {
+    // component or element
+    var code;
+    if (el.component) {
+      code = genComponent(el.component, el, state);
+    } else {
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
+
+      var children = el.inlineTemplate ? null : genChildren(el, state, true);
+      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+    }
+    // module transforms
+    for (var i = 0; i < state.transforms.length; i++) {
+      code = state.transforms[i](el, code);
+    }
+    return code
+  }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state) {
+  el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
+  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+}
+
+// v-once
+function genOnce (el, state) {
+  el.onceProcessed = true;
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.staticInFor) {
+    var key = '';
+    var parent = el.parent;
+    while (parent) {
+      if (parent.for) {
+        key = parent.key;
+        break
+      }
+      parent = parent.parent;
+    }
+    if (!key) {
+      state.warn(
+        "v-once can only be used inside v-for that is keyed. "
+      );
+      return genElement(el, state)
+    }
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+  } else {
+    return genStatic(el, state)
+  }
+}
+
+function genIf (
+  el,
+  state,
+  altGen,
+  altEmpty
+) {
+  el.ifProcessed = true; // avoid recursion
+  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+  conditions,
+  state,
+  altGen,
+  altEmpty
+) {
+  if (!conditions.length) {
+    return altEmpty || '_e()'
+  }
+
+  var condition = conditions.shift();
+  if (condition.exp) {
+    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+  } else {
+    return ("" + (genTernaryExp(condition.block)))
+  }
+
+  // v-if with v-once should generate code like (a)?_m(0):_m(1)
+  function genTernaryExp (el) {
+    return altGen
+      ? altGen(el, state)
+      : el.once
+        ? genOnce(el, state)
+        : genElement(el, state)
+  }
+}
+
+function genFor (
+  el,
+  state,
+  altGen,
+  altHelper
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+  if (state.maybeComponent(el) &&
+    el.tag !== 'slot' &&
+    el.tag !== 'template' &&
+    !el.key
+  ) {
+    state.warn(
+      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+      "v-for should have explicit keys. " +
+      "See https://vuejs.org/guide/list.html#key for more info.",
+      true /* tip */
+    );
+  }
+
+  el.forProcessed = true; // avoid recursion
+  return (altHelper || '_l') + "((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + ((altGen || genElement)(el, state)) +
+    '})'
+}
+
+function genData$2 (el, state) {
+  var data = '{';
+
+  // directives first.
+  // directives may mutate the el's other properties before they are generated.
+  var dirs = genDirectives(el, state);
+  if (dirs) { data += dirs + ','; }
+
+  // key
+  if (el.key) {
+    data += "key:" + (el.key) + ",";
+  }
+  // ref
+  if (el.ref) {
+    data += "ref:" + (el.ref) + ",";
+  }
+  if (el.refInFor) {
+    data += "refInFor:true,";
+  }
+  // pre
+  if (el.pre) {
+    data += "pre:true,";
+  }
+  // record original tag name for components using "is" attribute
+  if (el.component) {
+    data += "tag:\"" + (el.tag) + "\",";
+  }
+  // module data generation functions
+  for (var i = 0; i < state.dataGenFns.length; i++) {
+    data += state.dataGenFns[i](el);
+  }
+  // attributes
+  if (el.attrs) {
+    data += "attrs:{" + (genProps(el.attrs)) + "},";
+  }
+  // DOM props
+  if (el.props) {
+    data += "domProps:{" + (genProps(el.props)) + "},";
+  }
+  // event handlers
+  if (el.events) {
+    data += (genHandlers(el.events, false)) + ",";
+  }
+  if (el.nativeEvents) {
+    data += (genHandlers(el.nativeEvents, true)) + ",";
+  }
+  // slot target
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
+    data += "slot:" + (el.slotTarget) + ",";
+  }
+  // scoped slots
+  if (el.scopedSlots) {
+    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+  }
+  // component v-model
+  if (el.model) {
+    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+  }
+  // inline-template
+  if (el.inlineTemplate) {
+    var inlineTemplate = genInlineTemplate(el, state);
+    if (inlineTemplate) {
+      data += inlineTemplate + ",";
+    }
+  }
+  data = data.replace(/,$/, '') + '}';
+  // v-bind data wrap
+  if (el.wrapData) {
+    data = el.wrapData(data);
+  }
+  // v-on data wrap
+  if (el.wrapListeners) {
+    data = el.wrapListeners(data);
+  }
+  return data
+}
+
+function genDirectives (el, state) {
+  var dirs = el.directives;
+  if (!dirs) { return }
+  var res = 'directives:[';
+  var hasRuntime = false;
+  var i, l, dir, needRuntime;
+  for (i = 0, l = dirs.length; i < l; i++) {
+    dir = dirs[i];
+    needRuntime = true;
+    var gen = state.directives[dir.name];
+    if (gen) {
+      // compile-time directive that manipulates AST.
+      // returns true if it also needs a runtime counterpart.
+      needRuntime = !!gen(el, dir, state.warn);
+    }
+    if (needRuntime) {
+      hasRuntime = true;
+      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+    }
+  }
+  if (hasRuntime) {
+    return res.slice(0, -1) + ']'
+  }
+}
+
+function genInlineTemplate (el, state) {
+  var ast = el.children[0];
+  if (el.children.length !== 1 || ast.type !== 1) {
+    state.warn('Inline-template components must have exactly one child element.');
+  }
+  if (ast.type === 1) {
+    var inlineRenderFns = generate(ast, state.options);
+    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+  }
+}
+
+function genScopedSlots (
+  slots,
+  state
+) {
+  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+      return genScopedSlot(key, slots[key], state)
+    }).join(',')) + "])")
+}
+
+function genScopedSlot (
+  key,
+  el,
+  state
+) {
+  if (el.for && !el.forProcessed) {
+    return genForScopedSlot(key, el, state)
+  }
+  var fn = "function(" + (String(el.slotScope)) + "){" +
+    "return " + (el.tag === 'template'
+      ? el.if
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
+}
+
+function genForScopedSlot (
+  key,
+  el,
+  state
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+  el.forProcessed = true; // avoid recursion
+  return "_l((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + (genScopedSlot(key, el, state)) +
+    '})'
+}
+
+function genChildren (
+  el,
+  state,
+  checkSkip,
+  altGenElement,
+  altGenNode
+) {
+  var children = el.children;
+  if (children.length) {
+    var el$1 = children[0];
+    // optimize single v-for
+    if (children.length === 1 &&
+      el$1.for &&
+      el$1.tag !== 'template' &&
+      el$1.tag !== 'slot'
+    ) {
+      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
+    }
+    var normalizationType$1 = checkSkip
+      ? getNormalizationType(children, state.maybeComponent)
+      : 0;
+    var gen = altGenNode || genNode;
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
+  }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+  children,
+  maybeComponent
+) {
+  var res = 0;
+  for (var i = 0; i < children.length; i++) {
+    var el = children[i];
+    if (el.type !== 1) {
+      continue
+    }
+    if (needsNormalization(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+      res = 2;
+      break
+    }
+    if (maybeComponent(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+      res = 1;
+    }
+  }
+  return res
+}
+
+function needsNormalization (el) {
+  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+  if (node.type === 1) {
+    return genElement(node, state)
+  } else if (node.type === 3 && node.isComment) {
+    return genComment(node)
+  } else {
+    return genText(node)
+  }
+}
+
+function genText (text) {
+  return ("_v(" + (text.type === 2
+    ? text.expression // no need for () because already wrapped in _s()
+    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
+}
+
+function genComment (comment) {
+  return ("_e(" + (JSON.stringify(comment.text)) + ")")
+}
+
+function genSlot (el, state) {
+  var slotName = el.slotName || '"default"';
+  var children = genChildren(el, state);
+  var res = "_t(" + slotName + (children ? ("," + children) : '');
+  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var bind$$1 = el.attrsMap['v-bind'];
+  if ((attrs || bind$$1) && !children) {
+    res += ",null";
+  }
+  if (attrs) {
+    res += "," + attrs;
+  }
+  if (bind$$1) {
+    res += (attrs ? '' : ',null') + "," + bind$$1;
+  }
+  return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+  componentName,
+  el,
+  state
+) {
+  var children = el.inlineTemplate ? null : genChildren(el, state, true);
+  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+}
+
+function genProps (props) {
+  var res = '';
+  for (var i = 0; i < props.length; i++) {
+    var prop = props[i];
+    /* istanbul ignore if */
+    {
+      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    }
+  }
+  return res.slice(0, -1)
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+  return text
+    .replace(/\u2028/g, '\\u2028')
+    .replace(/\u2029/g, '\\u2029')
+}
+
+/*  */
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+var prohibitedKeywordRE = new RegExp('\\b' + (
+  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+  'super,throw,while,yield,delete,export,import,return,switch,default,' +
+  'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+var unaryOperatorsRE = new RegExp('\\b' + (
+  'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// strip strings in expressions
+var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast) {
+  var errors = [];
+  if (ast) {
+    checkNode(ast, errors);
+  }
+  return errors
+}
+
+function checkNode (node, errors) {
+  if (node.type === 1) {
+    for (var name in node.attrsMap) {
+      if (dirRE.test(name)) {
+        var value = node.attrsMap[name];
+        if (value) {
+          if (name === 'v-for') {
+            checkFor(node, ("v-for=\"" + value + "\""), errors);
+          } else if (onRE.test(name)) {
+            checkEvent(value, (name + "=\"" + value + "\""), errors);
+          } else {
+            checkExpression(value, (name + "=\"" + value + "\""), errors);
+          }
+        }
+      }
+    }
+    if (node.children) {
+      for (var i = 0; i < node.children.length; i++) {
+        checkNode(node.children[i], errors);
+      }
+    }
+  } else if (node.type === 2) {
+    checkExpression(node.expression, node.text, errors);
+  }
+}
+
+function checkEvent (exp, text, errors) {
+  var stipped = exp.replace(stripStringRE, '');
+  var keywordMatch = stipped.match(unaryOperatorsRE);
+  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    errors.push(
+      "avoid using JavaScript unary operator as property name: " +
+      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+    );
+  }
+  checkExpression(exp, text, errors);
+}
+
+function checkFor (node, text, errors) {
+  checkExpression(node.for || '', text, errors);
+  checkIdentifier(node.alias, 'v-for alias', text, errors);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+}
+
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  errors
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident + "=_"));
+    } catch (e) {
+      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+    }
+  }
+}
+
+function checkExpression (exp, text, errors) {
+  try {
+    new Function(("return " + exp));
+  } catch (e) {
+    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+    if (keywordMatch) {
+      errors.push(
+        "avoid using JavaScript keyword as property name: " +
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+      );
+    } else {
+      errors.push(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n"
+      );
+    }
+  }
+}
+
+/*  */
+
+
+
+function createFunction (code, errors) {
+  try {
+    return new Function(code)
+  } catch (err) {
+    errors.push({ err: err, code: code });
+    return noop
+  }
+}
+
+function createCompileToFunctionFn (compile) {
+  var cache = Object.create(null);
+
+  return function compileToFunctions (
+    template,
+    options,
+    vm
+  ) {
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
+
+    /* istanbul ignore if */
+    {
+      // detect possible CSP restriction
+      try {
+        new Function('return 1');
+      } catch (e) {
+        if (e.toString().match(/unsafe-eval|CSP/)) {
+          warn$$1(
+            'It seems you are using the standalone build of Vue.js in an ' +
+            'environment with Content Security Policy that prohibits unsafe-eval. ' +
+            'The template compiler cannot work in this environment. Consider ' +
+            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+            'templates into render functions.'
+          );
+        }
+      }
+    }
+
+    // check cache
+    var key = options.delimiters
+      ? String(options.delimiters) + template
+      : template;
+    if (cache[key]) {
+      return cache[key]
+    }
+
+    // compile
+    var compiled = compile(template, options);
+
+    // check compilation errors/tips
+    {
+      if (compiled.errors && compiled.errors.length) {
+        warn$$1(
+          "Error compiling template:\n\n" + template + "\n\n" +
+          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+          vm
+        );
+      }
+      if (compiled.tips && compiled.tips.length) {
+        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+      }
+    }
+
+    // turn code into functions
+    var res = {};
+    var fnGenErrors = [];
+    res.render = createFunction(compiled.render, fnGenErrors);
+    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+      return createFunction(code, fnGenErrors)
+    });
+
+    // check function generation errors.
+    // this should only happen if there is a bug in the compiler itself.
+    // mostly for codegen development use
+    /* istanbul ignore if */
+    {
+      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+        warn$$1(
+          "Failed to generate render function:\n\n" +
+          fnGenErrors.map(function (ref) {
+            var err = ref.err;
+            var code = ref.code;
+
+            return ((err.toString()) + " in\n\n" + code + "\n");
+        }).join('\n'),
+          vm
+        );
+      }
+    }
+
+    return (cache[key] = res)
+  }
+}
+
+/*  */
+
+function createCompilerCreator (baseCompile) {
+  return function createCompiler (baseOptions) {
+    function compile (
+      template,
+      options
+    ) {
+      var finalOptions = Object.create(baseOptions);
+      var errors = [];
+      var tips = [];
+      finalOptions.warn = function (msg, tip) {
+        (tip ? tips : errors).push(msg);
+      };
+
+      if (options) {
+        // merge custom modules
+        if (options.modules) {
+          finalOptions.modules =
+            (baseOptions.modules || []).concat(options.modules);
+        }
+        // merge custom directives
+        if (options.directives) {
+          finalOptions.directives = extend(
+            Object.create(baseOptions.directives || null),
+            options.directives
+          );
+        }
+        // copy other options
+        for (var key in options) {
+          if (key !== 'modules' && key !== 'directives') {
+            finalOptions[key] = options[key];
+          }
+        }
+      }
+
+      var compiled = baseCompile(template, finalOptions);
+      {
+        errors.push.apply(errors, detectErrors(compiled.ast));
+      }
+      compiled.errors = errors;
+      compiled.tips = tips;
+      return compiled
+    }
+
+    return {
+      compile: compile,
+      compileToFunctions: createCompileToFunctionFn(compile)
+    }
+  }
+}
+
+/*  */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+var createCompiler = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  var ast = parse(template.trim(), options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
+  var code = generate(ast, options);
+  return {
+    ast: ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
+var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
+var compileToFunctions = ref$1.compileToFunctions;
+
+/*  */
+
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
+var idToTemplate = cached(function (id) {
+  var el = query(id);
+  return el && el.innerHTML
+});
+
+var mount = Vue.prototype.$mount;
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && query(el);
+
+  /* istanbul ignore if */
+  if (el === document.body || el === document.documentElement) {
+    warn(
+      "Do not mount Vue to <html> or <body> - mount to normal elements instead."
+    );
+    return this
+  }
+
+  var options = this.$options;
+  // resolve template/el and convert to render function
+  if (!options.render) {
+    var template = options.template;
+    if (template) {
+      if (typeof template === 'string') {
+        if (template.charAt(0) === '#') {
+          template = idToTemplate(template);
+          /* istanbul ignore if */
+          if (!template) {
+            warn(
+              ("Template element not found or is empty: " + (options.template)),
+              this
+            );
+          }
+        }
+      } else if (template.nodeType) {
+        template = template.innerHTML;
+      } else {
+        {
+          warn('invalid template option:' + template, this);
+        }
+        return this
+      }
+    } else if (el) {
+      template = getOuterHTML(el);
+    }
+    if (template) {
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        mark('compile');
+      }
+
+      var ref = compileToFunctions(template, {
+        shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
+        delimiters: options.delimiters,
+        comments: options.comments
+      }, this);
+      var render = ref.render;
+      var staticRenderFns = ref.staticRenderFns;
+      options.render = render;
+      options.staticRenderFns = staticRenderFns;
+
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        mark('compile end');
+        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
+      }
+    }
+  }
+  return mount.call(this, el, hydrating)
+};
+
+/**
+ * Get outerHTML of elements, taking care
+ * of SVG elements in IE as well.
+ */
+function getOuterHTML (el) {
+  if (el.outerHTML) {
+    return el.outerHTML
+  } else {
+    var container = document.createElement('div');
+    container.appendChild(el.cloneNode(true));
+    return container.innerHTML
+  }
+}
+
+Vue.compile = compileToFunctions;
+
+module.exports = Vue;
diff --git a/dist/vue.common.js b/dist/vue.common.js
index c0203d1b635..3c2a9b3344a 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2728,6 +2728,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -2759,8 +2767,7 @@ function lifecycleMixin (Vue) {
     var vm = this;
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
@@ -2771,7 +2778,7 @@ function lifecycleMixin (Vue) {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -5181,7 +5188,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18-beta.0';
+Vue.version = '2.5.18';
 
 /*  */
 
@@ -8474,6 +8481,7 @@ var TransitionGroup = {
 
     var update = this._update;
     this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
       // force removing pass
       this$1.__patch__(
         this$1._vnode,
@@ -8482,6 +8490,7 @@ var TransitionGroup = {
         true // removeOnly (!important, avoids unnecessary moves)
       );
       this$1._vnode = this$1.kept;
+      restoreActiveInstance();
       update.call(this$1, vnode, hydrating);
     };
   },
@@ -10080,13 +10089,15 @@ var keyNames = {
   esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -10580,9 +10591,7 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      // because el may be a functional component and return an Array instead of a single root.
-      // In this case, just a simple normalization is needed
-      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
new file mode 100644
index 00000000000..295fc28f440
--- /dev/null
+++ b/dist/vue.common.prod.js
@@ -0,0 +1,6 @@
+/*!
+ * Vue.js v2.5.18-beta.0
+ * (c) 2014-2018 Evan You
+ * Released under the MIT License.
+ */
+"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function v(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(e,t){return h.call(e,t)}function y(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var g=/-(\w)/g,_=y(function(e){return e.replace(g,function(e,t){return t?t.toUpperCase():""})}),b=y(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),$=/\B([A-Z])/g,w=y(function(e){return e.replace($,"-$1").toLowerCase()});var C=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function x(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function A(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function O(e,t,n){}var S=function(e,t,n){return!1},T=function(e){return e};function N(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var i=Array.isArray(e),a=Array.isArray(t);if(i&&a)return e.length===t.length&&e.every(function(e,n){return N(e,t[n])});if(e instanceof Date&&t instanceof Date)return e.getTime()===t.getTime();if(i||a)return!1;var s=Object.keys(e),c=Object.keys(t);return s.length===c.length&&s.every(function(n){return N(e[n],t[n])})}catch(e){return!1}}function E(e,t){for(var n=0;n<e.length;n++)if(N(e[n],t))return n;return-1}function j(e){var t=!1;return function(){t||(t=!0,e.apply(this,arguments))}}var L="data-server-rendered",I=["component","directive","filter"],M=["beforeCreate","created","beforeMount","mounted","beforeUpdate","updated","beforeDestroy","destroyed","activated","deactivated","errorCaptured"],D={optionMergeStrategies:Object.create(null),silent:!1,productionTip:!1,devtools:!1,performance:!1,errorHandler:null,warnHandler:null,ignoredElements:[],keyCodes:Object.create(null),isReservedTag:S,isReservedAttr:S,isUnknownElement:S,getTagNamespace:O,parsePlatformTagName:T,mustUseProp:S,async:!0,_lifecycleHooks:M};function 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${as(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function ls(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return us(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${as(t,e)},${e.onceId++},${n})`:as(t,e)}return cs(t,e)}function us(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const i=e.shift();return i.exp?`(${i.exp})?${s(i.block)}:${t(e,n,o,r)}`:`${s(i.block)}`;function s(t){return o?o(t,n):t.once?ls(t,n):as(t,n)}}(t.ifConditions.slice(),e,n,o)}function fs(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,i,s,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){i=n[o],s=!0;const r=e.directives[i.name];r&&(s=!!r(t,i,e.warn)),s&&(c=!0,a+=`{name:"${i.name}",rawName:"${i.rawName}"${i.value?`,value:(${i.value}),expression:${JSON.stringify(i.value)}`:""}${i.arg?`,arg:"${i.arg}"`:""}${i.modifiers?`,modifiers:${JSON.stringify(i.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:{${ys(t.attrs)}},`),t.props&&(n+=`domProps:{${ys(t.props)}},`),t.events&&(n+=`${es(t.events,!1)},`),t.nativeEvents&&(n+=`${es(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e){return`scopedSlots:_u([${Object.keys(t).map(n=>ps(n,t[n],e)).join(",")}])`}(t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(1===n.type){const t=ss(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function ps(t,e,n){if(e.for&&!e.forProcessed)return function(t,e,n){const o=e.for,r=e.alias,i=e.iterator1?`,${e.iterator1}`:"",s=e.iterator2?`,${e.iterator2}`:"";return e.forProcessed=!0,`_l((${o}),`+`function(${r}${i}${s}){`+`return ${ps(t,e,n)}`+"})"}(t,e,n);return`{key:${t},fn:${`function(${String(e.slotScope)}){`+`return ${"template"===e.tag?e.if?`(${e.if})?${ds(e,n)||"undefined"}:undefined`:ds(e,n)||"undefined":as(e,n)}}`}}`}function ds(t,e,n,o,r){const i=t.children;if(i.length){const t=i[0];if(1===i.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n&&e.maybeComponent(t)?",1":"";return`${(o||as)(t,e)}${r}`}const s=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(hs(r)||r.ifConditions&&r.ifConditions.some(t=>hs(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(i,e.maybeComponent):0,a=r||ms;return`[${i.map(t=>a(t,e)).join(",")}]${s?`,${s}`:""}`}}function hs(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function ms(t,e){return 1===t.type?as(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:gs(JSON.stringify(n.text))})`;var n,o}function ys(t){let e="";for(let n=0;n<t.length;n++){const o=t[n];e+=`"${o.name}":${gs(o.value)},`}return e.slice(0,-1)}function gs(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function vs(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),O}}const $s=(_s=function(t,e){const n=Mi(t.trim(),e);!1!==e.optimize&&Wi(n,e);const o=ss(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],i=[];if(o.warn=((t,e)=>{(e?i:r).push(t)}),n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}const s=_s(e,o);return s.errors=r,s.tips=i,s}return{compile:e,compileToFunctions:function(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn,delete o.warn;const i=o.delimiters?String(o.delimiters)+n:n;if(e[i])return e[i];const s=t(n,o),a={},c=[];return a.render=vs(s.render,c),a.staticRenderFns=s.staticRenderFns.map(t=>vs(t,c)),e[i]=a}}(e)}});var _s;const{compile:bs,compileToFunctions:ws}=$s(zi);let Cs;function xs(t){return(Cs=Cs||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Cs.innerHTML.indexOf("&#10;")>0}const ks=!!B&&xs(!1),As=!!B&&xs(!0),Os=g(t=>{const e=Ln(t);return e&&e.innerHTML}),Ss=rn.prototype.$mount;rn.prototype.$mount=function(t,e){if((t=t&&Ln(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=Os(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=ws(e,{shouldDecodeNewlines:ks,shouldDecodeNewlinesForHref:As,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return Ss.call(this,t,e)},rn.compile=ws;export default rn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index a17e8548470..f0cb2809246 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2726,6 +2726,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -2757,8 +2765,7 @@ function lifecycleMixin (Vue) {
     var vm = this;
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
@@ -2769,7 +2776,7 @@ function lifecycleMixin (Vue) {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -5179,7 +5186,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18-beta.0';
+Vue.version = '2.5.18';
 
 /*  */
 
@@ -8472,6 +8479,7 @@ var TransitionGroup = {
 
     var update = this._update;
     this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
       // force removing pass
       this$1.__patch__(
         this$1._vnode,
@@ -8480,6 +8488,7 @@ var TransitionGroup = {
         true // removeOnly (!important, avoids unnecessary moves)
       );
       this$1._vnode = this$1.kept;
+      restoreActiveInstance();
       update.call(this$1, vnode, hydrating);
     };
   },
@@ -10078,13 +10087,15 @@ var keyNames = {
   esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -10578,9 +10589,7 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      // because el may be a functional component and return an Array instead of a single root.
-      // In this case, just a simple normalization is needed
-      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
diff --git a/dist/vue.js b/dist/vue.js
index 3047cc4396e..10701a46209 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2724,6 +2724,14 @@
   var activeInstance = null;
   var isUpdatingChildComponent = false;
 
+  function setActiveInstance(vm) {
+    var prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    return function () {
+      activeInstance = prevActiveInstance;
+    }
+  }
+
   function initLifecycle (vm) {
     var options = vm.$options;
 
@@ -2755,8 +2763,7 @@
       var vm = this;
       var prevEl = vm.$el;
       var prevVnode = vm._vnode;
-      var prevActiveInstance = activeInstance;
-      activeInstance = vm;
+      var restoreActiveInstance = setActiveInstance(vm);
       vm._vnode = vnode;
       // Vue.prototype.__patch__ is injected in entry points
       // based on the rendering backend used.
@@ -2767,7 +2774,7 @@
         // updates
         vm.$el = vm.__patch__(prevVnode, vnode);
       }
-      activeInstance = prevActiveInstance;
+      restoreActiveInstance();
       // update __vue__ reference
       if (prevEl) {
         prevEl.__vue__ = null;
@@ -5163,7 +5170,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.18-beta.0';
+  Vue.version = '2.5.18';
 
   /*  */
 
@@ -8453,6 +8460,7 @@
 
       var update = this._update;
       this._update = function (vnode, hydrating) {
+        var restoreActiveInstance = setActiveInstance(this$1);
         // force removing pass
         this$1.__patch__(
           this$1._vnode,
@@ -8461,6 +8469,7 @@
           true // removeOnly (!important, avoids unnecessary moves)
         );
         this$1._vnode = this$1.kept;
+        restoreActiveInstance();
         update.call(this$1, vnode, hydrating);
       };
     },
@@ -10052,13 +10061,15 @@
     esc: ['Esc', 'Escape'],
     tab: 'Tab',
     enter: 'Enter',
-    space: ' ',
+    // #9112: IE11 uses `Spacebar` for Space key name.
+    space: [' ', 'Spacebar'],
     // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
     up: ['Up', 'ArrowUp'],
     left: ['Left', 'ArrowLeft'],
     right: ['Right', 'ArrowRight'],
     down: ['Down', 'ArrowDown'],
-    'delete': ['Backspace', 'Delete']
+    // #9112: IE11 uses `Del` for Delete key name.
+    'delete': ['Backspace', 'Delete', 'Del']
   };
 
   // #4868: modifiers that prevent the execution of the listener
@@ -10549,9 +10560,7 @@
         el$1.tag !== 'template' &&
         el$1.tag !== 'slot'
       ) {
-        // because el may be a functional component and return an Array instead of a single root.
-        // In this case, just a simple normalization is needed
-        var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+        var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
         return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
       }
       var normalizationType$1 = checkSkip
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 9953d1915ce..cb280625c07 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function v(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(e,t){return h.call(e,t)}function y(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var g=/-(\w)/g,_=y(function(e){return e.replace(g,function(e,t){return t?t.toUpperCase():""})}),b=y(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),$=/\B([A-Z])/g,w=y(function(e){return e.replace($,"-$1").toLowerCase()});var C=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function x(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function A(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function O(e,t,n){}var S=function(e,t,n){return!1},T=function(e){return e};function N(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var i=Array.isArray(e),a=Array.isArray(t);if(i&&a)return e.length===t.length&&e.every(function(e,n){return N(e,t[n])});if(e instanceof Date&&t instanceof Date)return e.getTime()===t.getTime();if(i||a)return!1;var s=Object.keys(e),c=Object.keys(t);return s.length===c.length&&s.every(function(n){return N(e[n],t[n])})}catch(e){return!1}}function j(e,t){for(var n=0;n<e.length;n++)if(N(e[n],t))return n;return-1}function E(e){var t=!1;return function(){t||(t=!0,e.apply(this,arguments))}}var L="data-server-rendered",I=["component","directive","filter"],M=["beforeCreate","created","beforeMount","mounted","beforeUpdate","updated","beforeDestroy","destroyed","activated","deactivated","errorCaptured"],D={optionMergeStrategies:Object.create(null),silent:!1,productionTip:!1,devtools:!1,performance:!1,errorHandler:null,warnHandler:null,ignoredElements:[],keyCodes:Object.create(null),isReservedTag:S,isReservedAttr:S,isUnknownElement:S,getTagNamespace:O,parsePlatformTagName:T,mustUseProp:S,async:!0,_lifecycleHooks:M};function P(e,t,n,r){Object.defineProperty(e,t,{value:n,enumerable:!!r,writable:!0,configurable:!0})}var F=/[^\w.$]/;var R,H="__proto__"in{},B="undefined"!=typeof window,U="undefined"!=typeof WXEnvironment&&!!WXEnvironment.platform,V=U&&WXEnvironment.platform.toLowerCase(),z=B&&window.navigator.userAgent.toLowerCase(),K=z&&/msie|trident/.test(z),J=z&&z.indexOf("msie 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i=e.for,o=e.alias,a=e.iterator1?","+e.iterator1:"",s=e.iterator2?","+e.iterator2:"";return e.forProcessed=!0,(r||"_l")+"(("+i+"),function("+o+a+s+"){return "+(n||pa)(e,t)+"})"}(e,t);if(e.if&&!e.ifProcessed)return ha(e,t);if("template"!==e.tag||e.slotTarget||t.pre){if("slot"===e.tag)return function(e,t){var n=e.slotName||'"default"',r=ga(e,t),i="_t("+n+(r?","+r:""),o=e.attrs&&"{"+e.attrs.map(function(e){return _(e.name)+":"+e.value}).join(",")+"}",a=e.attrsMap["v-bind"];!o&&!a||r||(i+=",null");o&&(i+=","+o);a&&(i+=(o?"":",null")+","+a);return i+")"}(e,t);var n;if(e.component)n=function(e,t,n){var r=t.inlineTemplate?null:ga(t,n,!0);return"_c("+e+","+ma(t,n)+(r?","+r:"")+")"}(e.component,e,t);else{var r;(!e.plain||e.pre&&t.maybeComponent(e))&&(r=ma(e,t));var i=e.inlineTemplate?null:ga(e,t,!0);n="_c('"+e.tag+"'"+(r?","+r:"")+(i?","+i:"")+")"}for(var o=0;o<t.transforms.length;o++)n=t.transforms[o](e,n);return n}return ga(e,t)||"void 0"}function da(e,t){e.staticProcessed=!0;var n=t.pre;return e.pre&&(t.pre=e.pre),t.staticRenderFns.push("with(this){return "+pa(e,t)+"}"),t.pre=n,"_m("+(t.staticRenderFns.length-1)+(e.staticInFor?",true":"")+")"}function va(e,t){if(e.onceProcessed=!0,e.if&&!e.ifProcessed)return ha(e,t);if(e.staticInFor){for(var n="",r=e.parent;r;){if(r.for){n=r.key;break}r=r.parent}return n?"_o("+pa(e,t)+","+t.onceId+++","+n+")":pa(e,t)}return da(e,t)}function ha(e,t,n,r){return e.ifProcessed=!0,function e(t,n,r,i){if(!t.length)return i||"_e()";var o=t.shift();return o.exp?"("+o.exp+")?"+a(o.block)+":"+e(t,n,r,i):""+a(o.block);function a(e){return r?r(e,n):e.once?va(e,n):pa(e,n)}}(e.ifConditions.slice(),t,n,r)}function ma(e,t){var n="{",r=function(e,t){var n=e.directives;if(!n)return;var r,i,o,a,s="directives:[",c=!1;for(r=0,i=n.length;r<i;r++){o=n[r],a=!0;var u=t.directives[o.name];u&&(a=!!u(e,o,t.warn)),a&&(c=!0,s+='{name:"'+o.name+'",rawName:"'+o.rawName+'"'+(o.value?",value:("+o.value+"),expression:"+JSON.stringify(o.value):"")+(o.arg?',arg:"'+o.arg+'"':"")+(o.modifiers?",modifiers:"+JSON.stringify(o.modifiers):"")+"},")}if(c)return s.slice(0,-1)+"]"}(e,t);r&&(n+=r+","),e.key&&(n+="key:"+e.key+","),e.ref&&(n+="ref:"+e.ref+","),e.refInFor&&(n+="refInFor:true,"),e.pre&&(n+="pre:true,"),e.component&&(n+='tag:"'+e.tag+'",');for(var i=0;i<t.dataGenFns.length;i++)n+=t.dataGenFns[i](e);if(e.attrs&&(n+="attrs:{"+$a(e.attrs)+"},"),e.props&&(n+="domProps:{"+$a(e.props)+"},"),e.events&&(n+=aa(e.events,!1)+","),e.nativeEvents&&(n+=aa(e.nativeEvents,!0)+","),e.slotTarget&&!e.slotScope&&(n+="slot:"+e.slotTarget+","),e.scopedSlots&&(n+=function(e,t){return"scopedSlots:_u(["+Object.keys(e).map(function(n){return ya(n,e[n],t)}).join(",")+"])"}(e.scopedSlots,t)+","),e.model&&(n+="model:{value:"+e.model.value+",callback:"+e.model.callback+",expression:"+e.model.expression+"},"),e.inlineTemplate){var o=function(e,t){var n=e.children[0];if(1===n.type){var r=fa(n,t.options);return"inlineTemplate:{render:function(){"+r.render+"},staticRenderFns:["+r.staticRenderFns.map(function(e){return"function(){"+e+"}"}).join(",")+"]}"}}(e,t);o&&(n+=o+",")}return n=n.replace(/,$/,"")+"}",e.wrapData&&(n=e.wrapData(n)),e.wrapListeners&&(n=e.wrapListeners(n)),n}function ya(e,t,n){return t.for&&!t.forProcessed?function(e,t,n){var r=t.for,i=t.alias,o=t.iterator1?","+t.iterator1:"",a=t.iterator2?","+t.iterator2:"";return t.forProcessed=!0,"_l(("+r+"),function("+i+o+a+"){return "+ya(e,t,n)+"})"}(e,t,n):"{key:"+e+",fn:"+("function("+String(t.slotScope)+"){return "+("template"===t.tag?t.if?"("+t.if+")?"+(ga(t,n)||"undefined")+":undefined":ga(t,n)||"undefined":pa(t,n))+"}")+"}"}function ga(e,t,n,r,i){var 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
new file mode 100644
index 00000000000..bf4d87c6299
--- /dev/null
+++ b/dist/vue.runtime.common.dev.js
@@ -0,0 +1,8084 @@
+/*!
+ * Vue.js v2.5.18-beta.0
+ * (c) 2014-2018 Evan You
+ * Released under the MIT License.
+ */
+'use strict';
+
+/*  */
+
+var emptyObject = Object.freeze({});
+
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
+function isUndef (v) {
+  return v === undefined || v === null
+}
+
+function isDef (v) {
+  return v !== undefined && v !== null
+}
+
+function isTrue (v) {
+  return v === true
+}
+
+function isFalse (v) {
+  return v === false
+}
+
+/**
+ * Check if value is primitive.
+ */
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value, e.g., [object Object].
+ */
+var _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function isRegExp (v) {
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+  return val == null
+    ? ''
+    : typeof val === 'object'
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
+
+/**
+ * Convert an input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+  var n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  var map = Object.create(null);
+  var list = str.split(',');
+  for (var i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? function (val) { return map[val.toLowerCase()]; }
+    : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if an attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array.
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    var index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether an object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  var cache = Object.create(null);
+  return (function cachedFn (str) {
+    var hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
+ */
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+  start = start || 0;
+  var i = list.length - start;
+  var ret = new Array(i);
+  while (i--) {
+    ret[i] = list[i + start];
+  }
+  return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (var key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+  var res = {};
+  for (var i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i]);
+    }
+  }
+  return res
+}
+
+/* eslint-disable no-unused-vars */
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/* eslint-enable no-unused-vars */
+
+/**
+ * Return the same value.
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+  if (a === b) { return true }
+  var isObjectA = isObject(a);
+  var isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
+function looseIndexOf (arr, val) {
+  for (var i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) { return i }
+  }
+  return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+  var called = false;
+  return function () {
+    if (!called) {
+      called = true;
+      fn.apply(this, arguments);
+    }
+  }
+}
+
+var SSR_ATTR = 'data-server-rendered';
+
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured'
+];
+
+/*  */
+
+
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  // $flow-disable-line
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  // $flow-disable-line
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/*  */
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+  var c = (str + '').charCodeAt(0);
+  return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/**
+ * Parse simple path.
+ */
+var bailRE = /[^\w.$]/;
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  var segments = path.split('.');
+  return function (obj) {
+    for (var i = 0; i < segments.length; i++) {
+      if (!obj) { return }
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = /*@__PURE__*/(function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+{
+  var hasConsole = typeof console !== 'undefined';
+  var classifyRE = /(?:^|[-_])(\w)/g;
+  var classify = function (str) { return str
+    .replace(classifyRE, function (c) { return c.toUpperCase(); })
+    .replace(/[-_]/g, ''); };
+
+  warn = function (msg, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
+    }
+  };
+
+  tip = function (msg, vm) {
+    if (hasConsole && (!config.silent)) {
+      console.warn("[Vue tip]: " + msg + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = function (vm, includeFile) {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm || {};
+    var name = options.name || options._componentTag;
+    var file = options.__file;
+    if (!name && file) {
+      var match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+      (file && includeFile !== false ? (" at " + file) : '')
+    )
+  };
+
+  var repeat = function (str, n) {
+    var res = '';
+    while (n) {
+      if (n % 2 === 1) { res += str; }
+      if (n > 1) { str += str; }
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = function (vm) {
+    if (vm._isVue && vm.$parent) {
+      var tree = [];
+      var currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          var last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+            : formatComponentName(vm))); })
+        .join('\n')
+    } else {
+      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+    }
+  };
+}
+
+/*  */
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+  this.id = uid++;
+  this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+  this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+  remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+  if (Dep.target) {
+    Dep.target.addDep(this);
+  }
+};
+
+Dep.prototype.notify = function notify () {
+  // stabilize the subscriber list first
+  var subs = this.subs.slice();
+  if (!config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
+  for (var i = 0, l = subs.length; i < l; i++) {
+    subs[i].update();
+  }
+};
+
+// the current target watcher being evaluated.
+// this is globally unique because there could be only one
+// watcher being evaluated at any time.
+Dep.target = null;
+var targetStack = [];
+
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
+}
+
+function popTarget () {
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
+}
+
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
+  cloned.isCloned = true;
+  return cloned
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
+  // cache original method
+  var original = arrayProto[method];
+  def(arrayMethods, method, function mutator () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    var result = original.apply(this, args);
+    var ob = this.__ob__;
+    var inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) { ob.observeArray(inserted); }
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
+ */
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
+
+/**
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatch updates.
+ */
+var Observer = function Observer (value) {
+  this.value = value;
+  this.dep = new Dep();
+  this.vmCount = 0;
+  def(value, '__ob__', this);
+  if (Array.isArray(value)) {
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
+    this.observeArray(value);
+  } else {
+    this.walk(value);
+  }
+};
+
+/**
+ * Walk through all properties and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+  var keys = Object.keys(obj);
+  for (var i = 0; i < keys.length; i++) {
+    defineReactive$$1(obj, keys[i]);
+  }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+  for (var i = 0, l = items.length; i < l; i++) {
+    observe(items[i]);
+  }
+};
+
+// helpers
+
+/**
+ * Augment a target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment a target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (var i = 0, l = keys.length; i < l; i++) {
+    var key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  var ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    shouldObserve &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive$$1 (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  var dep = new Dep();
+
+  var property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  var getter = property && property.get;
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
+    val = obj[key];
+  }
+
+  var childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      var value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      var value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if (customSetter) {
+        customSetter();
+      }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (key in target && !(key in Object.prototype)) {
+    target[key] = val;
+    return val
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive$$1(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.splice(key, 1);
+    return
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid deleting properties on a Vue instance or its root $data ' +
+      '- just set it to null.'
+    );
+    return
+  }
+  if (!hasOwn(target, key)) {
+    return
+  }
+  delete target[key];
+  if (!ob) {
+    return
+  }
+  ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        "option \"" + key + "\" can only be used during instance " +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) { return to }
+  var key, toVal, fromVal;
+  var keys = Object.keys(from);
+  for (var i = 0; i < keys.length; i++) {
+    key = keys[i];
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+      )
+    }
+  } else {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      var instanceData = typeof childVal === 'function'
+        ? childVal.call(vm, vm)
+        : childVal;
+      var defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm, vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn(parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  return childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  var res = Object.create(parentVal || null);
+  if (childVal) {
+    assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
+  /* istanbul ignore if */
+  if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = {};
+  extend(ret, parentVal);
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key$1] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) { extend(ret, childVal); }
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+  for (var key in options.components) {
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'can only contain alphanumeric characters and the hyphen, ' +
+      'and must start with a letter.'
+    );
+  }
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
+  }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+  var props = options.props;
+  if (!props) { return }
+  var res = {};
+  var i, val, name;
+  if (Array.isArray(props)) {
+    i = props.length;
+    while (i--) {
+      val = props[i];
+      if (typeof val === 'string') {
+        name = camelize(val);
+        res[name] = { type: null };
+      } else {
+        warn('props must be strings when using array syntax.');
+      }
+    }
+  } else if (isPlainObject(props)) {
+    for (var key in props) {
+      val = props[key];
+      name = camelize(key);
+      res[name] = isPlainObject(val)
+        ? val
+        : { type: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
+  }
+  options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+  var inject = options.inject;
+  if (!inject) { return }
+  var normalized = options.inject = {};
+  if (Array.isArray(inject)) {
+    for (var i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+  var dirs = options.directives;
+  if (dirs) {
+    for (var key in dirs) {
+      var def = dirs[key];
+      if (typeof def === 'function') {
+        dirs[key] = { bind: def, update: def };
+      }
+    }
+  }
+}
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+  parent,
+  child,
+  vm
+) {
+  {
+    checkComponents(child);
+  }
+
+  if (typeof child === 'function') {
+    child = child.options;
+  }
+
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
+  normalizeDirectives(child);
+  
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
+    }
+  }
+
+  var options = {};
+  var key;
+  for (key in parent) {
+    mergeField(key);
+  }
+  for (key in child) {
+    if (!hasOwn(parent, key)) {
+      mergeField(key);
+    }
+  }
+  function mergeField (key) {
+    var strat = strats[key] || defaultStrat;
+    options[key] = strat(parent[key], child[key], vm, key);
+  }
+  return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+  options,
+  type,
+  id,
+  warnMissing
+) {
+  /* istanbul ignore if */
+  if (typeof id !== 'string') {
+    return
+  }
+  var assets = options[type];
+  // check local registration variations first
+  if (hasOwn(assets, id)) { return assets[id] }
+  var camelizedId = camelize(id);
+  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+  var PascalCaseId = capitalize(camelizedId);
+  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+  // fallback to prototype chain
+  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+  if (warnMissing && !res) {
+    warn(
+      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+      options
+    );
+  }
+  return res
+}
+
+/*  */
+
+
+
+function validateProp (
+  key,
+  propOptions,
+  propsData,
+  vm
+) {
+  var prop = propOptions[key];
+  var absent = !hasOwn(propsData, key);
+  var value = propsData[key];
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
+    if (absent && !hasOwn(prop, 'default')) {
+      value = false;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
+    }
+  }
+  // check default value
+  if (value === undefined) {
+    value = getPropDefaultValue(vm, prop, key);
+    // since the default value is a fresh copy,
+    // make sure to observe it.
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
+    observe(value);
+    toggleObserving(prevShouldObserve);
+  }
+  {
+    assertProp(prop, key, value, vm, absent);
+  }
+  return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+  // no default, return undefined
+  if (!hasOwn(prop, 'default')) {
+    return undefined
+  }
+  var def = prop.default;
+  // warn against non-factory defaults for Object & Array
+  if (isObject(def)) {
+    warn(
+      'Invalid default value for prop "' + key + '": ' +
+      'Props with type Object/Array must use a factory function ' +
+      'to return the default value.',
+      vm
+    );
+  }
+  // the raw prop value was also undefined from previous render,
+  // return previous default value to avoid unnecessary watcher trigger
+  if (vm && vm.$options.propsData &&
+    vm.$options.propsData[key] === undefined &&
+    vm._props[key] !== undefined
+  ) {
+    return vm._props[key]
+  }
+  // call factory function for non-Function types
+  // a value is Function if its prototype is function even across different execution context
+  return typeof def === 'function' && getType(prop.type) !== 'Function'
+    ? def.call(vm)
+    : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+  prop,
+  name,
+  value,
+  vm,
+  absent
+) {
+  if (prop.required && absent) {
+    warn(
+      'Missing required prop: "' + name + '"',
+      vm
+    );
+    return
+  }
+  if (value == null && !prop.required) {
+    return
+  }
+  var type = prop.type;
+  var valid = !type || type === true;
+  var expectedTypes = [];
+  if (type) {
+    if (!Array.isArray(type)) {
+      type = [type];
+    }
+    for (var i = 0; i < type.length && !valid; i++) {
+      var assertedType = assertType(value, type[i]);
+      expectedTypes.push(assertedType.expectedType || '');
+      valid = assertedType.valid;
+    }
+  }
+
+  if (!valid) {
+    warn(
+      getInvalidTypeMessage(name, value, expectedTypes),
+      vm
+    );
+    return
+  }
+  var validator = prop.validator;
+  if (validator) {
+    if (!validator(value)) {
+      warn(
+        'Invalid prop: custom validator check failed for prop "' + name + '".',
+        vm
+      );
+    }
+  }
+}
+
+var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+  var valid;
+  var expectedType = getType(type);
+  if (simpleCheckRE.test(expectedType)) {
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
+  } else if (expectedType === 'Object') {
+    valid = isPlainObject(value);
+  } else if (expectedType === 'Array') {
+    valid = Array.isArray(value);
+  } else {
+    valid = value instanceof type;
+  }
+  return {
+    valid: valid,
+    expectedType: expectedType
+  }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+  var match = fn && fn.toString().match(/^\s*function (\w+)/);
+  return match ? match[1] : ''
+}
+
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
+  }
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
+    }
+  }
+  return -1
+}
+
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using both microtasks and (macro) tasks.
+// In < 2.4 we used microtasks everywhere, but there are some scenarios where
+// microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690) or even between bubbling of the same
+// event (#6566). However, using (macro) tasks everywhere also has subtle problems
+// when state is changed right before repaint (e.g. #6813, out-in transitions).
+// Here we use microtask by default, but expose a way to force (macro) task when
+// needed (e.g. in event handlers attached by v-on).
+var microTimerFunc;
+var macroTimerFunc;
+var useMacroTask = false;
+
+// Determine (macro) task defer implementation.
+// Technically setImmediate should be the ideal choice, but it's only available
+// in IE. The only polyfill that consistently queues the callback after all DOM
+// events triggered in the same loop is by using MessageChannel.
+/* istanbul ignore if */
+if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  macroTimerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else if (typeof MessageChannel !== 'undefined' && (
+  isNative(MessageChannel) ||
+  // PhantomJS
+  MessageChannel.toString() === '[object MessageChannelConstructor]'
+)) {
+  var channel = new MessageChannel();
+  var port = channel.port2;
+  channel.port1.onmessage = flushCallbacks;
+  macroTimerFunc = function () {
+    port.postMessage(1);
+  };
+} else {
+  /* istanbul ignore next */
+  macroTimerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+// Determine microtask defer implementation.
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  microTimerFunc = function () {
+    p.then(flushCallbacks);
+    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+} else {
+  // fallback to macro
+  microTimerFunc = macroTimerFunc;
+}
+
+/**
+ * Wrap a function so that if any code inside triggers state change,
+ * the changes are queued using a (macro) task instead of a microtask.
+ */
+function withMacroTask (fn) {
+  return fn._withTask || (fn._withTask = function () {
+    useMacroTask = true;
+    try {
+      return fn.apply(null, arguments)
+    } finally {
+      useMacroTask = false;    
+    }
+  })
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    if (useMacroTask) {
+      macroTimerFunc();
+    } else {
+      microTimerFunc();
+    }
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+var initProxy;
+
+{
+  var allowedGlobals = makeMap(
+    'Infinity,undefined,NaN,isFinite,isNaN,' +
+    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+    'require' // for Webpack/Browserify
+  );
+
+  var warnNonPresent = function (target, key) {
+    warn(
+      "Property or method \"" + key + "\" is not defined on the instance but " +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+      target
+    );
+  };
+
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
+  var hasProxy =
+    typeof Proxy !== 'undefined' && isNative(Proxy);
+
+  if (hasProxy) {
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+    config.keyCodes = new Proxy(config.keyCodes, {
+      set: function set (target, key, value) {
+        if (isBuiltInModifier(key)) {
+          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+          return false
+        } else {
+          target[key] = value;
+          return true
+        }
+      }
+    });
+  }
+
+  var hasHandler = {
+    has: function has (target, key) {
+      var has = key in target;
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
+      if (!has && !isAllowed) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return has || !isAllowed
+    }
+  };
+
+  var getHandler = {
+    get: function get (target, key) {
+      if (typeof key === 'string' && !(key in target)) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return target[key]
+    }
+  };
+
+  initProxy = function initProxy (vm) {
+    if (hasProxy) {
+      // determine which proxy handler to use
+      var options = vm.$options;
+      var handlers = options.render && options.render._withStripped
+        ? getHandler
+        : hasHandler;
+      vm._renderProxy = new Proxy(vm, handlers);
+    } else {
+      vm._renderProxy = vm;
+    }
+  };
+}
+
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+var mark;
+var measure;
+
+{
+  var perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    mark = function (tag) { return perf.mark(tag); };
+    measure = function (name, startTag, endTag) {
+      perf.measure(name, startTag, endTag);
+      perf.clearMarks(startTag);
+      perf.clearMarks(endTag);
+      perf.clearMeasures(name);
+    };
+  }
+}
+
+/*  */
+
+var normalizeEvent = cached(function (name) {
+  var passive = name.charAt(0) === '&';
+  name = passive ? name.slice(1) : name;
+  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+  name = once$$1 ? name.slice(1) : name;
+  var capture = name.charAt(0) === '!';
+  name = capture ? name.slice(1) : name;
+  return {
+    name: name,
+    once: once$$1,
+    capture: capture,
+    passive: passive
+  }
+});
+
+function createFnInvoker (fns) {
+  function invoker () {
+    var arguments$1 = arguments;
+
+    var fns = invoker.fns;
+    if (Array.isArray(fns)) {
+      var cloned = fns.slice();
+      for (var i = 0; i < cloned.length; i++) {
+        cloned[i].apply(null, arguments$1);
+      }
+    } else {
+      // return handler return value for single handlers
+      return fns.apply(null, arguments)
+    }
+  }
+  invoker.fns = fns;
+  return invoker
+}
+
+function updateListeners (
+  on,
+  oldOn,
+  add,
+  remove$$1,
+  createOnceHandler,
+  vm
+) {
+  var name, def$$1, cur, old, event;
+  for (name in on) {
+    def$$1 = cur = on[name];
+    old = oldOn[name];
+    event = normalizeEvent(name);
+    if (isUndef(cur)) {
+      warn(
+        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+        vm
+      );
+    } else if (isUndef(old)) {
+      if (isUndef(cur.fns)) {
+        cur = on[name] = createFnInvoker(cur);
+      }
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
+    } else if (cur !== old) {
+      old.fns = cur;
+      on[name] = old;
+    }
+  }
+  for (name in oldOn) {
+    if (isUndef(on[name])) {
+      event = normalizeEvent(name);
+      remove$$1(event.name, oldOn[name], event.capture);
+    }
+  }
+}
+
+/*  */
+
+function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
+  var invoker;
+  var oldHook = def[hookKey];
+
+  function wrappedHook () {
+    hook.apply(this, arguments);
+    // important: remove merged hook to ensure it's called only once
+    // and prevent memory leak
+    remove(invoker.fns, wrappedHook);
+  }
+
+  if (isUndef(oldHook)) {
+    // no existing hook
+    invoker = createFnInvoker([wrappedHook]);
+  } else {
+    /* istanbul ignore if */
+    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+      // already a merged invoker
+      invoker = oldHook;
+      invoker.fns.push(wrappedHook);
+    } else {
+      // existing plain hook
+      invoker = createFnInvoker([oldHook, wrappedHook]);
+    }
+  }
+
+  invoker.merged = true;
+  def[hookKey] = invoker;
+}
+
+/*  */
+
+function extractPropsFromVNodeData (
+  data,
+  Ctor,
+  tag
+) {
+  // we are only extracting raw values here.
+  // validation and default values are handled in the child
+  // component itself.
+  var propOptions = Ctor.options.props;
+  if (isUndef(propOptions)) {
+    return
+  }
+  var res = {};
+  var attrs = data.attrs;
+  var props = data.props;
+  if (isDef(attrs) || isDef(props)) {
+    for (var key in propOptions) {
+      var altKey = hyphenate(key);
+      {
+        var keyInLowerCase = key.toLowerCase();
+        if (
+          key !== keyInLowerCase &&
+          attrs && hasOwn(attrs, keyInLowerCase)
+        ) {
+          tip(
+            "Prop \"" + keyInLowerCase + "\" is passed to component " +
+            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+            " \"" + key + "\". " +
+            "Note that HTML attributes are case-insensitive and camelCased " +
+            "props need to use their kebab-case equivalents when using in-DOM " +
+            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+          );
+        }
+      }
+      checkProp(res, props, key, altKey, true) ||
+      checkProp(res, attrs, key, altKey, false);
+    }
+  }
+  return res
+}
+
+function checkProp (
+  res,
+  hash,
+  key,
+  altKey,
+  preserve
+) {
+  if (isDef(hash)) {
+    if (hasOwn(hash, key)) {
+      res[key] = hash[key];
+      if (!preserve) {
+        delete hash[key];
+      }
+      return true
+    } else if (hasOwn(hash, altKey)) {
+      res[key] = hash[altKey];
+      if (!preserve) {
+        delete hash[altKey];
+      }
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array<VNode>. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+  for (var i = 0; i < children.length; i++) {
+    if (Array.isArray(children[i])) {
+      return Array.prototype.concat.apply([], children)
+    }
+  }
+  return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. <template>, <slot>, v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+  return isPrimitive(children)
+    ? [createTextVNode(children)]
+    : Array.isArray(children)
+      ? normalizeArrayChildren(children)
+      : undefined
+}
+
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+  var res = [];
+  var i, c, lastIndex, last;
+  for (i = 0; i < children.length; i++) {
+    c = children[i];
+    if (isUndef(c) || typeof c === 'boolean') { continue }
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
+    //  nested
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
+    } else if (isPrimitive(c)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
+        res[lastIndex] = createTextVNode(last.text + c);
+      } else if (c !== '') {
+        // convert primitive to vnode
+        res.push(createTextVNode(c));
+      }
+    } else {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
+        res[lastIndex] = createTextVNode(last.text + c.text);
+      } else {
+        // default key for nested array children (likely generated by v-for)
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = "__vlist" + nestedIndex + "_" + i + "__";
+        }
+        res.push(c);
+      }
+    }
+  }
+  return res
+}
+
+/*  */
+
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
+
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
+}
+
+function resolveAsyncComponent (
+  factory,
+  baseCtor,
+  context
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  if (isDef(factory.contexts)) {
+    // already pending
+    factory.contexts.push(context);
+  } else {
+    var contexts = factory.contexts = [context];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = contexts.length; i < l; i++) {
+        contexts[i].$forceUpdate();
+      }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
+    };
+
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      }
+    });
+
+    var reject = once(function (reason) {
+      warn(
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
+      );
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (typeof res.then === 'function') {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
+  }
+}
+
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
+      }
+    }
+  }
+}
+
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
+  }
+}
+
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
+}
+
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    var vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$off(event[i], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    if (fn) {
+      // specific handler
+      var cb;
+      var i$1 = cbs.length;
+      while (i$1--) {
+        cb = cbs[i$1];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i$1, 1);
+          break
+        }
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    var vm = this;
+    {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
+      }
+    }
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        try {
+          cbs[i].apply(vm, args);
+        } catch (e) {
+          handleError(e, vm, ("event handler for \"" + event + "\""));
+        }
+      }
+    }
+    return vm
+  };
+}
+
+/*  */
+
+
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  var slots = {};
+  if (!children) {
+    return slots
+  }
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
+  }
+  return slots
+}
+
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  res
+) {
+  res = res || {};
+  for (var i = 0; i < fns.length; i++) {
+    if (Array.isArray(fns[i])) {
+      resolveScopedSlots(fns[i], res);
+    } else {
+      res[fns[i].key] = fns[i].fn;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var activeInstance = null;
+var isUpdatingChildComponent = false;
+
+function initLifecycle (vm) {
+  var options = vm.$options;
+
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
+    }
+    parent.$children.push(vm);
+  }
+
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
+
+  vm.$children = [];
+  vm.$refs = {};
+
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    activeInstance = prevActiveInstance;
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
+
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
+
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
+    }
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
+}
+
+function mountComponent (
+  vm,
+  el,
+  hydrating
+) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
+        warn(
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
+        );
+      }
+    }
+  }
+  callHook(vm, 'beforeMount');
+
+  var updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
+
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
+
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
+
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
+
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  }
+  return vm
+}
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+  {
+    isUpdatingChildComponent = true;
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren
+  var hasChildren = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    parentVnode.data.scopedSlots || // has new scoped slots
+    vm.$scopedSlots !== emptyObject // has old scoped slots
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (hasChildren) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
+}
+
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
+
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
+  }
+}
+
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
+
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      try {
+        handlers[i].call(vm);
+      } catch (e) {
+        handleError(e, vm, (hook + " hook"));
+      }
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
+}
+
+/*  */
+
+var MAX_UPDATE_COUNT = 100;
+
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
+
+/*  */
+
+
+
+var uid$1 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$1; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
+    }
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
+  }
+  return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
+  }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
+    }
+  }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
+  }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
+    }
+  }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
+  }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
+    }
+    this.active = false;
+  }
+};
+
+/*  */
+
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
+
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
+  }
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
+    {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      warn(
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
+    }
+  }
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
+  }
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
+      );
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
+  } else {
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
+  }
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
+    }
+  }
+}
+
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
+
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
+
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
+  }
+  return vm.$watch(expOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
+
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
+    var vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
+    }
+    return function unwatchFn () {
+      watcher.teardown();
+    }
+  };
+}
+
+/*  */
+
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
+  }
+}
+
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
+      }
+    });
+    toggleObserving(true);
+  }
+}
+
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject).filter(function (key) {
+        /* istanbul ignore next */
+        return Object.getOwnPropertyDescriptor(inject, key).enumerable
+      })
+      : Object.keys(inject);
+
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
+        }
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
+      }
+    }
+    return result
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    keys = Object.keys(val);
+    ret = new Array(keys.length);
+    for (i = 0, l = keys.length; i < l; i++) {
+      key = keys[i];
+      ret[i] = render(val[key], key, i);
+    }
+  }
+  if (isDef(ret)) {
+    (ret)._isVList = true;
+  }
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = data.scopedSlots || emptyObject;
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
+  }
+}
+
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
+
+  data = data || {};
+
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
+
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
+
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
+    }
+  }
+
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
+
+  return vnode
+}
+
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnode.componentOptions.Ctor(options)
+}
+
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
+  }
+}
+
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
+  } else {
+    on[event] = callback;
+  }
+}
+
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
+
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
+}
+
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
+  }
+}
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
+
+/*  */
+
+var uid$3 = 0;
+
+function initMixin (Vue) {
+  Vue.prototype._init = function (options) {
+    var vm = this;
+    // a uid
+    vm._uid = uid$3++;
+
+    var startTag, endTag;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      startTag = "vue-perf-start:" + (vm._uid);
+      endTag = "vue-perf-end:" + (vm._uid);
+      mark(startTag);
+    }
+
+    // a flag to avoid this being observed
+    vm._isVue = true;
+    // merge options
+    if (options && options._isComponent) {
+      // optimize internal component instantiation
+      // since dynamic options merging is pretty slow, and none of the
+      // internal component options needs special treatment.
+      initInternalComponent(vm, options);
+    } else {
+      vm.$options = mergeOptions(
+        resolveConstructorOptions(vm.constructor),
+        options || {},
+        vm
+      );
+    }
+    /* istanbul ignore else */
+    {
+      initProxy(vm);
+    }
+    // expose real self
+    vm._self = vm;
+    initLifecycle(vm);
+    initEvents(vm);
+    initRender(vm);
+    callHook(vm, 'beforeCreate');
+    initInjections(vm); // resolve injections before data/props
+    initState(vm);
+    initProvide(vm); // resolve provide after data/props
+    callHook(vm, 'created');
+
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      vm._name = formatComponentName(vm, false);
+      mark(endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
+    }
+
+    if (vm.$options.el) {
+      vm.$mount(vm.$options.el);
+    }
+  };
+}
+
+function initInternalComponent (vm, options) {
+  var opts = vm.$options = Object.create(vm.constructor.options);
+  // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
+  opts.parent = options.parent;
+  opts._parentVnode = parentVnode;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
+  if (options.render) {
+    opts.render = options.render;
+    opts.staticRenderFns = options.staticRenderFns;
+  }
+}
+
+function resolveConstructorOptions (Ctor) {
+  var options = Ctor.options;
+  if (Ctor.super) {
+    var superOptions = resolveConstructorOptions(Ctor.super);
+    var cachedSuperOptions = Ctor.superOptions;
+    if (superOptions !== cachedSuperOptions) {
+      // super option changed,
+      // need to resolve new options.
+      Ctor.superOptions = superOptions;
+      // check if there are any late-modified/attached options (#4976)
+      var modifiedOptions = resolveModifiedOptions(Ctor);
+      // update base extend options
+      if (modifiedOptions) {
+        extend(Ctor.extendOptions, modifiedOptions);
+      }
+      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+      if (options.name) {
+        options.components[options.name] = Ctor;
+      }
+    }
+  }
+  return options
+}
+
+function resolveModifiedOptions (Ctor) {
+  var modified;
+  var latest = Ctor.options;
+  var extended = Ctor.extendOptions;
+  var sealed = Ctor.sealedOptions;
+  for (var key in latest) {
+    if (latest[key] !== sealed[key]) {
+      if (!modified) { modified = {}; }
+      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+    }
+  }
+  return modified
+}
+
+function dedupe (latest, extended, sealed) {
+  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
+  // between merges
+  if (Array.isArray(latest)) {
+    var res = [];
+    sealed = Array.isArray(sealed) ? sealed : [sealed];
+    extended = Array.isArray(extended) ? extended : [extended];
+    for (var i = 0; i < latest.length; i++) {
+      // push original options and not sealed options to exclude duplicated options
+      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
+        res.push(latest[i]);
+      }
+    }
+    return res
+  } else {
+    return latest
+  }
+}
+
+function Vue (options) {
+  if (!(this instanceof Vue)
+  ) {
+    warn('Vue is a constructor and should be called with the `new` keyword');
+  }
+  this._init(options);
+}
+
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
+
+/*  */
+
+function initUse (Vue) {
+  Vue.use = function (plugin) {
+    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
+    }
+
+    // additional parameters
+    var args = toArray(arguments, 1);
+    args.unshift(this);
+    if (typeof plugin.install === 'function') {
+      plugin.install.apply(plugin, args);
+    } else if (typeof plugin === 'function') {
+      plugin.apply(null, args);
+    }
+    installedPlugins.push(plugin);
+    return this
+  };
+}
+
+/*  */
+
+function initMixin$1 (Vue) {
+  Vue.mixin = function (mixin) {
+    this.options = mergeOptions(this.options, mixin);
+    return this
+  };
+}
+
+/*  */
+
+function initExtend (Vue) {
+  /**
+   * Each instance constructor, including Vue, has a unique
+   * cid. This enables us to create wrapped "child
+   * constructors" for prototypal inheritance and cache them.
+   */
+  Vue.cid = 0;
+  var cid = 1;
+
+  /**
+   * Class inheritance
+   */
+  Vue.extend = function (extendOptions) {
+    extendOptions = extendOptions || {};
+    var Super = this;
+    var SuperId = Super.cid;
+    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+    if (cachedCtors[SuperId]) {
+      return cachedCtors[SuperId]
+    }
+
+    var name = extendOptions.name || Super.options.name;
+    if (name) {
+      validateComponentName(name);
+    }
+
+    var Sub = function VueComponent (options) {
+      this._init(options);
+    };
+    Sub.prototype = Object.create(Super.prototype);
+    Sub.prototype.constructor = Sub;
+    Sub.cid = cid++;
+    Sub.options = mergeOptions(
+      Super.options,
+      extendOptions
+    );
+    Sub['super'] = Super;
+
+    // For props and computed properties, we define the proxy getters on
+    // the Vue instances at extension time, on the extended prototype. This
+    // avoids Object.defineProperty calls for each instance created.
+    if (Sub.options.props) {
+      initProps$1(Sub);
+    }
+    if (Sub.options.computed) {
+      initComputed$1(Sub);
+    }
+
+    // allow further extension/mixin/plugin usage
+    Sub.extend = Super.extend;
+    Sub.mixin = Super.mixin;
+    Sub.use = Super.use;
+
+    // create asset registers, so extended classes
+    // can have their private assets too.
+    ASSET_TYPES.forEach(function (type) {
+      Sub[type] = Super[type];
+    });
+    // enable recursive self-lookup
+    if (name) {
+      Sub.options.components[name] = Sub;
+    }
+
+    // keep a reference to the super options at extension time.
+    // later at instantiation we can check if Super's options have
+    // been updated.
+    Sub.superOptions = Super.options;
+    Sub.extendOptions = extendOptions;
+    Sub.sealedOptions = extend({}, Sub.options);
+
+    // cache constructor
+    cachedCtors[SuperId] = Sub;
+    return Sub
+  };
+}
+
+function initProps$1 (Comp) {
+  var props = Comp.options.props;
+  for (var key in props) {
+    proxy(Comp.prototype, "_props", key);
+  }
+}
+
+function initComputed$1 (Comp) {
+  var computed = Comp.options.computed;
+  for (var key in computed) {
+    defineComputed(Comp.prototype, key, computed[key]);
+  }
+}
+
+/*  */
+
+function initAssetRegisters (Vue) {
+  /**
+   * Create asset registration methods.
+   */
+  ASSET_TYPES.forEach(function (type) {
+    Vue[type] = function (
+      id,
+      definition
+    ) {
+      if (!definition) {
+        return this.options[type + 's'][id]
+      } else {
+        /* istanbul ignore if */
+        if (type === 'component') {
+          validateComponentName(id);
+        }
+        if (type === 'component' && isPlainObject(definition)) {
+          definition.name = definition.name || id;
+          definition = this.options._base.extend(definition);
+        }
+        if (type === 'directive' && typeof definition === 'function') {
+          definition = { bind: definition, update: definition };
+        }
+        this.options[type + 's'][id] = definition;
+        return definition
+      }
+    };
+  });
+}
+
+/*  */
+
+
+
+function getComponentName (opts) {
+  return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
+    return pattern.split(',').indexOf(name) > -1
+  } else if (isRegExp(pattern)) {
+    return pattern.test(name)
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
+  for (var key in cache) {
+    var cachedNode = cache[key];
+    if (cachedNode) {
+      var name = getComponentName(cachedNode.componentOptions);
+      if (name && !filter(name)) {
+        pruneCacheEntry(cache, key, keys, _vnode);
+      }
+    }
+  }
+}
+
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+    cached$$1.componentInstance.$destroy();
+  }
+  cache[key] = null;
+  remove(keys, key);
+}
+
+var patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+  name: 'keep-alive',
+  abstract: true,
+
+  props: {
+    include: patternTypes,
+    exclude: patternTypes,
+    max: [String, Number]
+  },
+
+  created: function created () {
+    this.cache = Object.create(null);
+    this.keys = [];
+  },
+
+  destroyed: function destroyed () {
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
+    }
+  },
+
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
+  },
+
+  render: function render () {
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
+    var componentOptions = vnode && vnode.componentOptions;
+    if (componentOptions) {
+      // check pattern
+      var name = getComponentName(componentOptions);
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
+        return vnode
+      }
+
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
+      var key = vnode.key == null
+        // same constructor may get registered as different local components
+        // so cid alone is not enough (#3269)
+        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+        : vnode.key;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
+      } else {
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
+      }
+
+      vnode.data.keepAlive = true;
+    }
+    return vnode || (slot && slot[0])
+  }
+};
+
+var builtInComponents = {
+  KeepAlive: KeepAlive
+};
+
+/*  */
+
+function initGlobalAPI (Vue) {
+  // config
+  var configDef = {};
+  configDef.get = function () { return config; };
+  {
+    configDef.set = function () {
+      warn(
+        'Do not replace the Vue.config object, set individual fields instead.'
+      );
+    };
+  }
+  Object.defineProperty(Vue, 'config', configDef);
+
+  // exposed util methods.
+  // NOTE: these are not considered part of the public API - avoid relying on
+  // them unless you are aware of the risk.
+  Vue.util = {
+    warn: warn,
+    extend: extend,
+    mergeOptions: mergeOptions,
+    defineReactive: defineReactive$$1
+  };
+
+  Vue.set = set;
+  Vue.delete = del;
+  Vue.nextTick = nextTick;
+
+  Vue.options = Object.create(null);
+  ASSET_TYPES.forEach(function (type) {
+    Vue.options[type + 's'] = Object.create(null);
+  });
+
+  // this is used to identify the "base" constructor to extend all plain-object
+  // components with in Weex's multi-instance scenarios.
+  Vue.options._base = Vue;
+
+  extend(Vue.options.components, builtInComponents);
+
+  initUse(Vue);
+  initMixin$1(Vue);
+  initExtend(Vue);
+  initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue);
+
+Object.defineProperty(Vue.prototype, '$isServer', {
+  get: isServerRendering
+});
+
+Object.defineProperty(Vue.prototype, '$ssrContext', {
+  get: function get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.5.18-beta.0';
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+var xlinkNS = 'http://www.w3.org/1999/xlink';
+
+var isXlink = function (name) {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+var getXlinkProp = function (name) {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+var isFalsyAttrValue = function (val) {
+  return val == null || val === false
+};
+
+/*  */
+
+function genClassForVnode (vnode) {
+  var data = vnode.data;
+  var parentNode = vnode;
+  var childNode = vnode;
+  while (isDef(childNode.componentInstance)) {
+    childNode = childNode.componentInstance._vnode;
+    if (childNode && childNode.data) {
+      data = mergeClassData(childNode.data, data);
+    }
+  }
+  while (isDef(parentNode = parentNode.parent)) {
+    if (parentNode && parentNode.data) {
+      data = mergeClassData(data, parentNode.data);
+    }
+  }
+  return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+  return {
+    staticClass: concat(child.staticClass, parent.staticClass),
+    class: isDef(child.class)
+      ? [child.class, parent.class]
+      : parent.class
+  }
+}
+
+function renderClass (
+  staticClass,
+  dynamicClass
+) {
+  if (isDef(staticClass) || isDef(dynamicClass)) {
+    return concat(staticClass, stringifyClass(dynamicClass))
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function concat (a, b) {
+  return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+  if (Array.isArray(value)) {
+    return stringifyArray(value)
+  }
+  if (isObject(value)) {
+    return stringifyObject(value)
+  }
+  if (typeof value === 'string') {
+    return value
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function stringifyArray (value) {
+  var res = '';
+  var stringified;
+  for (var i = 0, l = value.length; i < l; i++) {
+    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+      if (res) { res += ' '; }
+      res += stringified;
+    }
+  }
+  return res
+}
+
+function stringifyObject (value) {
+  var res = '';
+  for (var key in value) {
+    if (value[key]) {
+      if (res) { res += ' '; }
+      res += key;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var namespaceMap = {
+  svg: 'http://www.w3.org/2000/svg',
+  math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+var isReservedTag = function (tag) {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+var unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+  /* istanbul ignore if */
+  if (!inBrowser) {
+    return true
+  }
+  if (isReservedTag(tag)) {
+    return false
+  }
+  tag = tag.toLowerCase();
+  /* istanbul ignore if */
+  if (unknownElementCache[tag] != null) {
+    return unknownElementCache[tag]
+  }
+  var el = document.createElement(tag);
+  if (tag.indexOf('-') > -1) {
+    // http://stackoverflow.com/a/28210364/1070244
+    return (unknownElementCache[tag] = (
+      el.constructor === window.HTMLUnknownElement ||
+      el.constructor === window.HTMLElement
+    ))
+  } else {
+    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+  }
+}
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+  if (typeof el === 'string') {
+    var selected = document.querySelector(el);
+    if (!selected) {
+      warn(
+        'Cannot find element: ' + el
+      );
+      return document.createElement('div')
+    }
+    return selected
+  } else {
+    return el
+  }
+}
+
+/*  */
+
+function createElement$1 (tagName, vnode) {
+  var elm = document.createElement(tagName);
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple');
+  }
+  return elm
+}
+
+function createElementNS (namespace, tagName) {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+  return document.createTextNode(text)
+}
+
+function createComment (text) {
+  return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+  parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+  node.removeChild(child);
+}
+
+function appendChild (node, child) {
+  node.appendChild(child);
+}
+
+function parentNode (node) {
+  return node.parentNode
+}
+
+function nextSibling (node) {
+  return node.nextSibling
+}
+
+function tagName (node) {
+  return node.tagName
+}
+
+function setTextContent (node, text) {
+  node.textContent = text;
+}
+
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
+}
+
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
+});
+
+/*  */
+
+var ref = {
+  create: function create (_, vnode) {
+    registerRef(vnode);
+  },
+  update: function update (oldVnode, vnode) {
+    if (oldVnode.data.ref !== vnode.data.ref) {
+      registerRef(oldVnode, true);
+      registerRef(vnode);
+    }
+  },
+  destroy: function destroy (vnode) {
+    registerRef(vnode, true);
+  }
+};
+
+function registerRef (vnode, isRemoval) {
+  var key = vnode.data.ref;
+  if (!isDef(key)) { return }
+
+  var vm = vnode.context;
+  var ref = vnode.componentInstance || vnode.elm;
+  var refs = vm.$refs;
+  if (isRemoval) {
+    if (Array.isArray(refs[key])) {
+      remove(refs[key], ref);
+    } else if (refs[key] === ref) {
+      refs[key] = undefined;
+    }
+  } else {
+    if (vnode.data.refInFor) {
+      if (!Array.isArray(refs[key])) {
+        refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
+      }
+    } else {
+      refs[key] = ref;
+    }
+  }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+var emptyNode = new VNode('', {}, []);
+
+var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function childrenIgnored (vnode) {
+  return vnode && vnode.data && vnode.data.domProps && (
+    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
+  )
+}
+
+function sameVnode (a, b) {
+  return (
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        !childrenIgnored(a) && !childrenIgnored(b) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
+  )
+}
+
+function sameInputType (a, b) {
+  if (a.tag !== 'input') { return true }
+  var i;
+  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+  var i, key;
+  var map = {};
+  for (i = beginIdx; i <= endIdx; ++i) {
+    key = children[i].key;
+    if (isDef(key)) { map[key] = i; }
+  }
+  return map
+}
+
+function createPatchFunction (backend) {
+  var i, j;
+  var cbs = {};
+
+  var modules = backend.modules;
+  var nodeOps = backend.nodeOps;
+
+  for (i = 0; i < hooks.length; ++i) {
+    cbs[hooks[i]] = [];
+    for (j = 0; j < modules.length; ++j) {
+      if (isDef(modules[j][hooks[i]])) {
+        cbs[hooks[i]].push(modules[j][hooks[i]]);
+      }
+    }
+  }
+
+  function emptyNodeAt (elm) {
+    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+  }
+
+  function createRmCb (childElm, listeners) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
+        removeNode(childElm);
+      }
+    }
+    remove$$1.listeners = listeners;
+    return remove$$1
+  }
+
+  function removeNode (el) {
+    var parent = nodeOps.parentNode(el);
+    // element may have already been removed due to v-html / v-text
+    if (isDef(parent)) {
+      nodeOps.removeChild(parent, el);
+    }
+  }
+
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    vnode.isRootInsert = !nested; // for transition enter check
+    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+      return
+    }
+
+    var data = vnode.data;
+    var children = vnode.children;
+    var tag = vnode.tag;
+    if (isDef(tag)) {
+      {
+        if (data && data.pre) {
+          creatingElmInVPre++;
+        }
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+          warn(
+            'Unknown custom element: <' + tag + '> - did you ' +
+            'register the component correctly? For recursive components, ' +
+            'make sure to provide the "name" option.',
+            vnode.context
+          );
+        }
+      }
+
+      vnode.elm = vnode.ns
+        ? nodeOps.createElementNS(vnode.ns, tag)
+        : nodeOps.createElement(tag, vnode);
+      setScope(vnode);
+
+      /* istanbul ignore if */
+      {
+        createChildren(vnode, children, insertedVnodeQueue);
+        if (isDef(data)) {
+          invokeCreateHooks(vnode, insertedVnodeQueue);
+        }
+        insert(parentElm, vnode.elm, refElm);
+      }
+
+      if (data && data.pre) {
+        creatingElmInVPre--;
+      }
+    } else if (isTrue(vnode.isComment)) {
+      vnode.elm = nodeOps.createComment(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    } else {
+      vnode.elm = nodeOps.createTextNode(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    }
+  }
+
+  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i = vnode.data;
+    if (isDef(i)) {
+      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+      if (isDef(i = i.hook) && isDef(i = i.init)) {
+        i(vnode, false /* hydrating */);
+      }
+      // after calling the init hook, if the vnode is a child component
+      // it should've created a child instance and mounted it. the child
+      // component also has set the placeholder vnode's elm.
+      // in that case we can just return the element and be done.
+      if (isDef(vnode.componentInstance)) {
+        initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
+        if (isTrue(isReactivated)) {
+          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+        }
+        return true
+      }
+    }
+  }
+
+  function initComponent (vnode, insertedVnodeQueue) {
+    if (isDef(vnode.data.pendingInsert)) {
+      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
+    }
+    vnode.elm = vnode.componentInstance.$el;
+    if (isPatchable(vnode)) {
+      invokeCreateHooks(vnode, insertedVnodeQueue);
+      setScope(vnode);
+    } else {
+      // empty component root.
+      // skip all element-related modules except for ref (#3455)
+      registerRef(vnode);
+      // make sure to invoke the insert hook
+      insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i;
+    // hack for #4339: a reactivated component with inner transition
+    // does not trigger because the inner node's created hooks are not called
+    // again. It's not ideal to involve module-specific logic in here but
+    // there doesn't seem to be a better way to do it.
+    var innerNode = vnode;
+    while (innerNode.componentInstance) {
+      innerNode = innerNode.componentInstance._vnode;
+      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+        for (i = 0; i < cbs.activate.length; ++i) {
+          cbs.activate[i](emptyNode, innerNode);
+        }
+        insertedVnodeQueue.push(innerNode);
+        break
+      }
+    }
+    // unlike a newly created component,
+    // a reactivated keep-alive component doesn't insert itself
+    insert(parentElm, vnode.elm, refElm);
+  }
+
+  function insert (parent, elm, ref$$1) {
+    if (isDef(parent)) {
+      if (isDef(ref$$1)) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
+        }
+      } else {
+        nodeOps.appendChild(parent, elm);
+      }
+    }
+  }
+
+  function createChildren (vnode, children, insertedVnodeQueue) {
+    if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
+      for (var i = 0; i < children.length; ++i) {
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+      }
+    } else if (isPrimitive(vnode.text)) {
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+    }
+  }
+
+  function isPatchable (vnode) {
+    while (vnode.componentInstance) {
+      vnode = vnode.componentInstance._vnode;
+    }
+    return isDef(vnode.tag)
+  }
+
+  function invokeCreateHooks (vnode, insertedVnodeQueue) {
+    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+      cbs.create[i$1](emptyNode, vnode);
+    }
+    i = vnode.data.hook; // Reuse variable
+    if (isDef(i)) {
+      if (isDef(i.create)) { i.create(emptyNode, vnode); }
+      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+    }
+  }
+
+  // set scope id attribute for scoped CSS.
+  // this is implemented as a special case to avoid the overhead
+  // of going through the normal attribute patching process.
+  function setScope (vnode) {
+    var i;
+    if (isDef(i = vnode.fnScopeId)) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setStyleScope(vnode.elm, i);
+        }
+        ancestor = ancestor.parent;
+      }
+    }
+    // for slot content they should also get the scopeId from the host instance.
+    if (isDef(i = activeInstance) &&
+      i !== vnode.context &&
+      i !== vnode.fnContext &&
+      isDef(i = i.$options._scopeId)
+    ) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    }
+  }
+
+  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
+    }
+  }
+
+  function invokeDestroyHook (vnode) {
+    var i, j;
+    var data = vnode.data;
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+    }
+    if (isDef(i = vnode.children)) {
+      for (j = 0; j < vnode.children.length; ++j) {
+        invokeDestroyHook(vnode.children[j]);
+      }
+    }
+  }
+
+  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      var ch = vnodes[startIdx];
+      if (isDef(ch)) {
+        if (isDef(ch.tag)) {
+          removeAndInvokeRemoveHook(ch);
+          invokeDestroyHook(ch);
+        } else { // Text node
+          removeNode(ch.elm);
+        }
+      }
+    }
+  }
+
+  function removeAndInvokeRemoveHook (vnode, rm) {
+    if (isDef(rm) || isDef(vnode.data)) {
+      var i;
+      var listeners = cbs.remove.length + 1;
+      if (isDef(rm)) {
+        // we have a recursively passed down rm callback
+        // increase the listeners count
+        rm.listeners += listeners;
+      } else {
+        // directly removing
+        rm = createRmCb(vnode.elm, listeners);
+      }
+      // recursively invoke hooks on child component root node
+      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+        removeAndInvokeRemoveHook(i, rm);
+      }
+      for (i = 0; i < cbs.remove.length; ++i) {
+        cbs.remove[i](vnode, rm);
+      }
+      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+        i(vnode, rm);
+      } else {
+        rm();
+      }
+    } else {
+      removeNode(vnode.elm);
+    }
+  }
+
+  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+    var oldStartIdx = 0;
+    var newStartIdx = 0;
+    var oldEndIdx = oldCh.length - 1;
+    var oldStartVnode = oldCh[0];
+    var oldEndVnode = oldCh[oldEndIdx];
+    var newEndIdx = newCh.length - 1;
+    var newStartVnode = newCh[0];
+    var newEndVnode = newCh[newEndIdx];
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+    // removeOnly is a special flag used only by <transition-group>
+    // to ensure removed elements stay in correct relative positions
+    // during leaving transitions
+    var canMove = !removeOnly;
+
+    {
+      checkDuplicateKeys(newCh);
+    }
+
+    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+      if (isUndef(oldStartVnode)) {
+        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+      } else if (isUndef(oldEndVnode)) {
+        oldEndVnode = oldCh[--oldEndIdx];
+      } else if (sameVnode(oldStartVnode, newStartVnode)) {
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        oldStartVnode = oldCh[++oldStartIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else if (sameVnode(oldEndVnode, newEndVnode)) {
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+        oldStartVnode = oldCh[++oldStartIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else {
+        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+        if (isUndef(idxInOld)) { // New element
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+        } else {
+          vnodeToMove = oldCh[idxInOld];
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+            oldCh[idxInOld] = undefined;
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+          } else {
+            // same key but different element. treat as new element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          }
+        }
+        newStartVnode = newCh[++newStartIdx];
+      }
+    }
+    if (oldStartIdx > oldEndIdx) {
+      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+    } else if (newStartIdx > newEndIdx) {
+      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    }
+  }
+
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
+    if (oldVnode === vnode) {
+      return
+    }
+
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    var elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
+    // reuse element for static trees.
+    // note we only do this if the vnode is cloned -
+    // if the new node is not cloned it means the render functions have been
+    // reset by the hot-reload-api and we need to do a proper re-render.
+    if (isTrue(vnode.isStatic) &&
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
+      vnode.componentInstance = oldVnode.componentInstance;
+      return
+    }
+
+    var i;
+    var data = vnode.data;
+    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+      i(oldVnode, vnode);
+    }
+
+    var oldCh = oldVnode.children;
+    var ch = vnode.children;
+    if (isDef(data) && isPatchable(vnode)) {
+      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+    }
+    if (isUndef(vnode.text)) {
+      if (isDef(oldCh) && isDef(ch)) {
+        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+      } else if (isDef(ch)) {
+        {
+          checkDuplicateKeys(ch);
+        }
+        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+      } else if (isDef(oldCh)) {
+        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+      } else if (isDef(oldVnode.text)) {
+        nodeOps.setTextContent(elm, '');
+      }
+    } else if (oldVnode.text !== vnode.text) {
+      nodeOps.setTextContent(elm, vnode.text);
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+    }
+  }
+
+  function invokeInsertHook (vnode, queue, initial) {
+    // delay insert hooks for component root nodes, invoke them after the
+    // element is really inserted
+    if (isTrue(initial) && isDef(vnode.parent)) {
+      vnode.parent.data.pendingInsert = queue;
+    } else {
+      for (var i = 0; i < queue.length; ++i) {
+        queue[i].data.hook.insert(queue[i]);
+      }
+    }
+  }
+
+  var hydrationBailed = false;
+  // list of modules that can skip create hook during hydration because they
+  // are already rendered on the client or has no need for initialization
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+  // Note: this is a browser-only function so we can assume elms are DOM nodes.
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
+    // assert node match
+    {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
+        return false
+      }
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+      if (isDef(i = vnode.componentInstance)) {
+        // child component. it should have hydrated its own tree.
+        initComponent(vnode, insertedVnodeQueue);
+        return true
+      }
+    }
+    if (isDef(tag)) {
+      if (isDef(children)) {
+        // empty element, allow client to pick up and populate children
+        if (!elm.hasChildNodes()) {
+          createChildren(vnode, children, insertedVnodeQueue);
+        } else {
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
+            }
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
+            }
+          }
+        }
+      }
+      if (isDef(data)) {
+        var fullInvoke = false;
+        for (var key in data) {
+          if (!isRenderedModule(key)) {
+            fullInvoke = true;
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+            break
+          }
+        }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
+      }
+    } else if (elm.data !== vnode.text) {
+      elm.data = vnode.text;
+    }
+    return true
+  }
+
+  function assertNodeMatch (node, vnode, inVPre) {
+    if (isDef(vnode.tag)) {
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
+        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+      )
+    } else {
+      return node.nodeType === (vnode.isComment ? 8 : 3)
+    }
+  }
+
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
+    if (isUndef(vnode)) {
+      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+      return
+    }
+
+    var isInitialPatch = false;
+    var insertedVnodeQueue = [];
+
+    if (isUndef(oldVnode)) {
+      // empty mount (likely as component), create new root element
+      isInitialPatch = true;
+      createElm(vnode, insertedVnodeQueue);
+    } else {
+      var isRealElement = isDef(oldVnode.nodeType);
+      if (!isRealElement && sameVnode(oldVnode, vnode)) {
+        // patch existing root node
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
+      } else {
+        if (isRealElement) {
+          // mounting to a real element
+          // check if this is server-rendered content and if we can perform
+          // a successful hydration.
+          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+            oldVnode.removeAttribute(SSR_ATTR);
+            hydrating = true;
+          }
+          if (isTrue(hydrating)) {
+            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+              invokeInsertHook(vnode, insertedVnodeQueue, true);
+              return oldVnode
+            } else {
+              warn(
+                'The client-side rendered virtual DOM tree is not matching ' +
+                'server-rendered content. This is likely caused by incorrect ' +
+                'HTML markup, for example nesting block-level elements inside ' +
+                '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                'full client-side render.'
+              );
+            }
+          }
+          // either not server-rendered, or hydration failed.
+          // create an empty node and replace it
+          oldVnode = emptyNodeAt(oldVnode);
+        }
+
+        // replacing existing element
+        var oldElm = oldVnode.elm;
+        var parentElm = nodeOps.parentNode(oldElm);
+
+        // create new node
+        createElm(
+          vnode,
+          insertedVnodeQueue,
+          // extremely rare edge case: do not insert if old element is in a
+          // leaving transition. Only happens when combining transition +
+          // keep-alive + HOCs. (#4590)
+          oldElm._leaveCb ? null : parentElm,
+          nodeOps.nextSibling(oldElm)
+        );
+
+        // update parent placeholder node element, recursively
+        if (isDef(vnode.parent)) {
+          var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
+          while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
+            ancestor.elm = vnode.elm;
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
+            }
+            ancestor = ancestor.parent;
+          }
+        }
+
+        // destroy old node
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
+        } else if (isDef(oldVnode.tag)) {
+          invokeDestroyHook(oldVnode);
+        }
+      }
+    }
+
+    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+    return vnode.elm
+  }
+}
+
+/*  */
+
+var directives = {
+  create: updateDirectives,
+  update: updateDirectives,
+  destroy: function unbindDirectives (vnode) {
+    updateDirectives(vnode, emptyNode);
+  }
+};
+
+function updateDirectives (oldVnode, vnode) {
+  if (oldVnode.data.directives || vnode.data.directives) {
+    _update(oldVnode, vnode);
+  }
+}
+
+function _update (oldVnode, vnode) {
+  var isCreate = oldVnode === emptyNode;
+  var isDestroy = vnode === emptyNode;
+  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+  var dirsWithInsert = [];
+  var dirsWithPostpatch = [];
+
+  var key, oldDir, dir;
+  for (key in newDirs) {
+    oldDir = oldDirs[key];
+    dir = newDirs[key];
+    if (!oldDir) {
+      // new directive, bind
+      callHook$1(dir, 'bind', vnode, oldVnode);
+      if (dir.def && dir.def.inserted) {
+        dirsWithInsert.push(dir);
+      }
+    } else {
+      // existing directive, update
+      dir.oldValue = oldDir.value;
+      callHook$1(dir, 'update', vnode, oldVnode);
+      if (dir.def && dir.def.componentUpdated) {
+        dirsWithPostpatch.push(dir);
+      }
+    }
+  }
+
+  if (dirsWithInsert.length) {
+    var callInsert = function () {
+      for (var i = 0; i < dirsWithInsert.length; i++) {
+        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+      }
+    };
+    if (isCreate) {
+      mergeVNodeHook(vnode, 'insert', callInsert);
+    } else {
+      callInsert();
+    }
+  }
+
+  if (dirsWithPostpatch.length) {
+    mergeVNodeHook(vnode, 'postpatch', function () {
+      for (var i = 0; i < dirsWithPostpatch.length; i++) {
+        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+      }
+    });
+  }
+
+  if (!isCreate) {
+    for (key in oldDirs) {
+      if (!newDirs[key]) {
+        // no longer present, unbind
+        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+      }
+    }
+  }
+}
+
+var emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+  dirs,
+  vm
+) {
+  var res = Object.create(null);
+  if (!dirs) {
+    // $flow-disable-line
+    return res
+  }
+  var i, dir;
+  for (i = 0; i < dirs.length; i++) {
+    dir = dirs[i];
+    if (!dir.modifiers) {
+      // $flow-disable-line
+      dir.modifiers = emptyModifiers;
+    }
+    res[getRawDirName(dir)] = dir;
+    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+  }
+  // $flow-disable-line
+  return res
+}
+
+function getRawDirName (dir) {
+  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+  var fn = dir.def && dir.def[hook];
+  if (fn) {
+    try {
+      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+    } catch (e) {
+      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+    }
+  }
+}
+
+var baseModules = [
+  ref,
+  directives
+];
+
+/*  */
+
+function updateAttrs (oldVnode, vnode) {
+  var opts = vnode.componentOptions;
+  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+    return
+  }
+  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+    return
+  }
+  var key, cur, old;
+  var elm = vnode.elm;
+  var oldAttrs = oldVnode.data.attrs || {};
+  var attrs = vnode.data.attrs || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(attrs.__ob__)) {
+    attrs = vnode.data.attrs = extend({}, attrs);
+  }
+
+  for (key in attrs) {
+    cur = attrs[key];
+    old = oldAttrs[key];
+    if (old !== cur) {
+      setAttr(elm, key, cur);
+    }
+  }
+  // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
+  /* istanbul ignore if */
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+    setAttr(elm, 'value', attrs.value);
+  }
+  for (key in oldAttrs) {
+    if (isUndef(attrs[key])) {
+      if (isXlink(key)) {
+        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else if (!isEnumeratedAttr(key)) {
+        elm.removeAttribute(key);
+      }
+    }
+  }
+}
+
+function setAttr (el, key, value) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
+    // set attribute for blank value
+    // e.g. <option disabled>Select one</option>
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
+    }
+  } else if (isEnumeratedAttr(key)) {
+    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+  } else if (isXlink(key)) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+    } else {
+      el.setAttributeNS(xlinkNS, key, value);
+    }
+  } else {
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
+    }
+    el.setAttribute(key, value);
+  }
+}
+
+var attrs = {
+  create: updateAttrs,
+  update: updateAttrs
+};
+
+/*  */
+
+function updateClass (oldVnode, vnode) {
+  var el = vnode.elm;
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+  if (
+    isUndef(data.staticClass) &&
+    isUndef(data.class) && (
+      isUndef(oldData) || (
+        isUndef(oldData.staticClass) &&
+        isUndef(oldData.class)
+      )
+    )
+  ) {
+    return
+  }
+
+  var cls = genClassForVnode(vnode);
+
+  // handle transition classes
+  var transitionClass = el._transitionClasses;
+  if (isDef(transitionClass)) {
+    cls = concat(cls, stringifyClass(transitionClass));
+  }
+
+  // set the class
+  if (cls !== el._prevClass) {
+    el.setAttribute('class', cls);
+    el._prevClass = cls;
+  }
+}
+
+var klass = {
+  create: updateClass,
+  update: updateClass
+};
+
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
+
+/*  */
+
+// normalize v-model event tokens that can only be determined at runtime.
+// it's important to place the event as the first in the array because
+// the whole point is ensuring the v-model callback gets called before
+// user-attached handlers.
+function normalizeEvents (on) {
+  /* istanbul ignore if */
+  if (isDef(on[RANGE_TOKEN])) {
+    // IE input[type=range] only supports `change` event
+    var event = isIE ? 'change' : 'input';
+    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+    delete on[RANGE_TOKEN];
+  }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
+}
+
+var target$1;
+
+function createOnceHandler$1 (event, handler, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
+function add$1 (
+  event,
+  handler,
+  capture,
+  passive
+) {
+  handler = withMacroTask(handler);
+  target$1.addEventListener(
+    event,
+    handler,
+    supportsPassive
+      ? { capture: capture, passive: passive }
+      : capture
+  );
+}
+
+function remove$2 (
+  event,
+  handler,
+  capture,
+  _target
+) {
+  (_target || target$1).removeEventListener(
+    event,
+    handler._withTask || handler,
+    capture
+  );
+}
+
+function updateDOMListeners (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+    return
+  }
+  var on = vnode.data.on || {};
+  var oldOn = oldVnode.data.on || {};
+  target$1 = vnode.elm;
+  normalizeEvents(on);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
+  target$1 = undefined;
+}
+
+var events = {
+  create: updateDOMListeners,
+  update: updateDOMListeners
+};
+
+/*  */
+
+function updateDOMProps (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+    return
+  }
+  var key, cur;
+  var elm = vnode.elm;
+  var oldProps = oldVnode.data.domProps || {};
+  var props = vnode.data.domProps || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(props.__ob__)) {
+    props = vnode.data.domProps = extend({}, props);
+  }
+
+  for (key in oldProps) {
+    if (isUndef(props[key])) {
+      elm[key] = '';
+    }
+  }
+  for (key in props) {
+    cur = props[key];
+    // ignore children if the node has textContent or innerHTML,
+    // as these will throw away existing DOM nodes and cause removal errors
+    // on subsequent patches (#3360)
+    if (key === 'textContent' || key === 'innerHTML') {
+      if (vnode.children) { vnode.children.length = 0; }
+      if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
+    }
+
+    if (key === 'value') {
+      // store value as _value as well since
+      // non-string values will be stringified
+      elm._value = cur;
+      // avoid resetting cursor position when value is the same
+      var strCur = isUndef(cur) ? '' : String(cur);
+      if (shouldUpdateValue(elm, strCur)) {
+        elm.value = strCur;
+      }
+    } else {
+      elm[key] = cur;
+    }
+  }
+}
+
+// check platforms/web/util/attrs.js acceptValue
+
+
+function shouldUpdateValue (elm, checkVal) {
+  return (!elm.composing && (
+    elm.tagName === 'OPTION' ||
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
+  ))
+}
+
+function isNotInFocusAndDirty (elm, checkVal) {
+  // return true when textbox (.number and .trim) loses focus and its value is
+  // not equal to the updated value
+  var notInFocus = true;
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm; } catch (e) {}
+  return notInFocus && elm.value !== checkVal
+}
+
+function isDirtyWithModifiers (elm, newVal) {
+  var value = elm.value;
+  var modifiers = elm._vModifiers; // injected by v-model runtime
+  if (isDef(modifiers)) {
+    if (modifiers.lazy) {
+      // inputs with lazy should only be updated when not in focus
+      return false
+    }
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
+  }
+  return value !== newVal
+}
+
+var domProps = {
+  create: updateDOMProps,
+  update: updateDOMProps
+};
+
+/*  */
+
+var parseStyleText = cached(function (cssText) {
+  var res = {};
+  var listDelimiter = /;(?![^(]*\))/g;
+  var propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      var tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// merge static and dynamic style data on the same vnode
+function normalizeStyleData (data) {
+  var style = normalizeStyleBinding(data.style);
+  // static style is pre-processed into an object during compilation
+  // and is always a fresh object, so it's safe to merge into it
+  return data.staticStyle
+    ? extend(data.staticStyle, style)
+    : style
+}
+
+// normalize possible array / string values into Object
+function normalizeStyleBinding (bindingStyle) {
+  if (Array.isArray(bindingStyle)) {
+    return toObject(bindingStyle)
+  }
+  if (typeof bindingStyle === 'string') {
+    return parseStyleText(bindingStyle)
+  }
+  return bindingStyle
+}
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+function getStyle (vnode, checkChild) {
+  var res = {};
+  var styleData;
+
+  if (checkChild) {
+    var childNode = vnode;
+    while (childNode.componentInstance) {
+      childNode = childNode.componentInstance._vnode;
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
+        extend(res, styleData);
+      }
+    }
+  }
+
+  if ((styleData = normalizeStyleData(vnode.data))) {
+    extend(res, styleData);
+  }
+
+  var parentNode = vnode;
+  while ((parentNode = parentNode.parent)) {
+    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+      extend(res, styleData);
+    }
+  }
+  return res
+}
+
+/*  */
+
+var cssVarRE = /^--/;
+var importantRE = /\s*!important$/;
+var setProp = function (el, name, val) {
+  /* istanbul ignore if */
+  if (cssVarRE.test(name)) {
+    el.style.setProperty(name, val);
+  } else if (importantRE.test(val)) {
+    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+  } else {
+    var normalizedName = normalize(name);
+    if (Array.isArray(val)) {
+      // Support values array created by autoprefixer, e.g.
+      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+      // Set them one by one, and the browser will only set those it can recognize
+      for (var i = 0, len = val.length; i < len; i++) {
+        el.style[normalizedName] = val[i];
+      }
+    } else {
+      el.style[normalizedName] = val;
+    }
+  }
+};
+
+var vendorNames = ['Webkit', 'Moz', 'ms'];
+
+var emptyStyle;
+var normalize = cached(function (prop) {
+  emptyStyle = emptyStyle || document.createElement('div').style;
+  prop = camelize(prop);
+  if (prop !== 'filter' && (prop in emptyStyle)) {
+    return prop
+  }
+  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+  for (var i = 0; i < vendorNames.length; i++) {
+    var name = vendorNames[i] + capName;
+    if (name in emptyStyle) {
+      return name
+    }
+  }
+});
+
+function updateStyle (oldVnode, vnode) {
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+
+  if (isUndef(data.staticStyle) && isUndef(data.style) &&
+    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  ) {
+    return
+  }
+
+  var cur, name;
+  var el = vnode.elm;
+  var oldStaticStyle = oldData.staticStyle;
+  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+
+  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+  var oldStyle = oldStaticStyle || oldStyleBinding;
+
+  var style = normalizeStyleBinding(vnode.data.style) || {};
+
+  // store normalized style under a different key for next diff
+  // make sure to clone it if it's reactive, since the user likely wants
+  // to mutate it.
+  vnode.data.normalizedStyle = isDef(style.__ob__)
+    ? extend({}, style)
+    : style;
+
+  var newStyle = getStyle(vnode, true);
+
+  for (name in oldStyle) {
+    if (isUndef(newStyle[name])) {
+      setProp(el, name, '');
+    }
+  }
+  for (name in newStyle) {
+    cur = newStyle[name];
+    if (cur !== oldStyle[name]) {
+      // ie9 setting to null has no effect, must use empty string
+      setProp(el, name, cur == null ? '' : cur);
+    }
+  }
+}
+
+var style = {
+  create: updateStyle,
+  update: updateStyle
+};
+
+/*  */
+
+var whitespaceRE = /\s+/;
+
+/**
+ * Add class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function addClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
+    } else {
+      el.classList.add(cls);
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    if (cur.indexOf(' ' + cls + ' ') < 0) {
+      el.setAttribute('class', (cur + cls).trim());
+    }
+  }
+}
+
+/**
+ * Remove class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function removeClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
+    } else {
+      el.classList.remove(cls);
+    }
+    if (!el.classList.length) {
+      el.removeAttribute('class');
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    var tar = ' ' + cls + ' ';
+    while (cur.indexOf(tar) >= 0) {
+      cur = cur.replace(tar, ' ');
+    }
+    cur = cur.trim();
+    if (cur) {
+      el.setAttribute('class', cur);
+    } else {
+      el.removeAttribute('class');
+    }
+  }
+}
+
+/*  */
+
+function resolveTransition (def$$1) {
+  if (!def$$1) {
+    return
+  }
+  /* istanbul ignore else */
+  if (typeof def$$1 === 'object') {
+    var res = {};
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
+    }
+    extend(res, def$$1);
+    return res
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
+  }
+}
+
+var autoCssTransition = cached(function (name) {
+  return {
+    enterClass: (name + "-enter"),
+    enterToClass: (name + "-enter-to"),
+    enterActiveClass: (name + "-enter-active"),
+    leaveClass: (name + "-leave"),
+    leaveToClass: (name + "-leave-to"),
+    leaveActiveClass: (name + "-leave-active")
+  }
+});
+
+var hasTransition = inBrowser && !isIE9;
+var TRANSITION = 'transition';
+var ANIMATION = 'animation';
+
+// Transition property/event sniffing
+var transitionProp = 'transition';
+var transitionEndEvent = 'transitionend';
+var animationProp = 'animation';
+var animationEndEvent = 'animationend';
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    transitionProp = 'WebkitTransition';
+    transitionEndEvent = 'webkitTransitionEnd';
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    animationProp = 'WebkitAnimation';
+    animationEndEvent = 'webkitAnimationEnd';
+  }
+}
+
+// binding to window is necessary to make hot reload work in IE in strict mode
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
+
+function nextFrame (fn) {
+  raf(function () {
+    raf(fn);
+  });
+}
+
+function addTransitionClass (el, cls) {
+  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+  if (transitionClasses.indexOf(cls) < 0) {
+    transitionClasses.push(cls);
+    addClass(el, cls);
+  }
+}
+
+function removeTransitionClass (el, cls) {
+  if (el._transitionClasses) {
+    remove(el._transitionClasses, cls);
+  }
+  removeClass(el, cls);
+}
+
+function whenTransitionEnds (
+  el,
+  expectedType,
+  cb
+) {
+  var ref = getTransitionInfo(el, expectedType);
+  var type = ref.type;
+  var timeout = ref.timeout;
+  var propCount = ref.propCount;
+  if (!type) { return cb() }
+  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+  var ended = 0;
+  var end = function () {
+    el.removeEventListener(event, onEnd);
+    cb();
+  };
+  var onEnd = function (e) {
+    if (e.target === el) {
+      if (++ended >= propCount) {
+        end();
+      }
+    }
+  };
+  setTimeout(function () {
+    if (ended < propCount) {
+      end();
+    }
+  }, timeout + 1);
+  el.addEventListener(event, onEnd);
+}
+
+var transformRE = /\b(transform|all)(,|$)/;
+
+function getTransitionInfo (el, expectedType) {
+  var styles = window.getComputedStyle(el);
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
+  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
+  var animationTimeout = getTimeout(animationDelays, animationDurations);
+
+  var type;
+  var timeout = 0;
+  var propCount = 0;
+  /* istanbul ignore if */
+  if (expectedType === TRANSITION) {
+    if (transitionTimeout > 0) {
+      type = TRANSITION;
+      timeout = transitionTimeout;
+      propCount = transitionDurations.length;
+    }
+  } else if (expectedType === ANIMATION) {
+    if (animationTimeout > 0) {
+      type = ANIMATION;
+      timeout = animationTimeout;
+      propCount = animationDurations.length;
+    }
+  } else {
+    timeout = Math.max(transitionTimeout, animationTimeout);
+    type = timeout > 0
+      ? transitionTimeout > animationTimeout
+        ? TRANSITION
+        : ANIMATION
+      : null;
+    propCount = type
+      ? type === TRANSITION
+        ? transitionDurations.length
+        : animationDurations.length
+      : 0;
+  }
+  var hasTransform =
+    type === TRANSITION &&
+    transformRE.test(styles[transitionProp + 'Property']);
+  return {
+    type: type,
+    timeout: timeout,
+    propCount: propCount,
+    hasTransform: hasTransform
+  }
+}
+
+function getTimeout (delays, durations) {
+  /* istanbul ignore next */
+  while (delays.length < durations.length) {
+    delays = delays.concat(delays);
+  }
+
+  return Math.max.apply(null, durations.map(function (d, i) {
+    return toMs(d) + toMs(delays[i])
+  }))
+}
+
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
+function toMs (s) {
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
+}
+
+/*  */
+
+function enter (vnode, toggleDisplay) {
+  var el = vnode.elm;
+
+  // call leave callback now
+  if (isDef(el._leaveCb)) {
+    el._leaveCb.cancelled = true;
+    el._leaveCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data)) {
+    return
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._enterCb) || el.nodeType !== 1) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var enterClass = data.enterClass;
+  var enterToClass = data.enterToClass;
+  var enterActiveClass = data.enterActiveClass;
+  var appearClass = data.appearClass;
+  var appearToClass = data.appearToClass;
+  var appearActiveClass = data.appearActiveClass;
+  var beforeEnter = data.beforeEnter;
+  var enter = data.enter;
+  var afterEnter = data.afterEnter;
+  var enterCancelled = data.enterCancelled;
+  var beforeAppear = data.beforeAppear;
+  var appear = data.appear;
+  var afterAppear = data.afterAppear;
+  var appearCancelled = data.appearCancelled;
+  var duration = data.duration;
+
+  // activeInstance will always be the <transition> component managing this
+  // transition. One edge case to check is when the <transition> is placed
+  // as the root node of a child component. In that case we need to check
+  // <transition>'s parent for appear check.
+  var context = activeInstance;
+  var transitionNode = activeInstance.$vnode;
+  while (transitionNode && transitionNode.parent) {
+    transitionNode = transitionNode.parent;
+    context = transitionNode.context;
+  }
+
+  var isAppear = !context._isMounted || !vnode.isRootInsert;
+
+  if (isAppear && !appear && appear !== '') {
+    return
+  }
+
+  var startClass = isAppear && appearClass
+    ? appearClass
+    : enterClass;
+  var activeClass = isAppear && appearActiveClass
+    ? appearActiveClass
+    : enterActiveClass;
+  var toClass = isAppear && appearToClass
+    ? appearToClass
+    : enterToClass;
+
+  var beforeEnterHook = isAppear
+    ? (beforeAppear || beforeEnter)
+    : beforeEnter;
+  var enterHook = isAppear
+    ? (typeof appear === 'function' ? appear : enter)
+    : enter;
+  var afterEnterHook = isAppear
+    ? (afterAppear || afterEnter)
+    : afterEnter;
+  var enterCancelledHook = isAppear
+    ? (appearCancelled || enterCancelled)
+    : enterCancelled;
+
+  var explicitEnterDuration = toNumber(
+    isObject(duration)
+      ? duration.enter
+      : duration
+  );
+
+  if (explicitEnterDuration != null) {
+    checkDuration(explicitEnterDuration, 'enter', vnode);
+  }
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(enterHook);
+
+  var cb = el._enterCb = once(function () {
+    if (expectsCSS) {
+      removeTransitionClass(el, toClass);
+      removeTransitionClass(el, activeClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, startClass);
+      }
+      enterCancelledHook && enterCancelledHook(el);
+    } else {
+      afterEnterHook && afterEnterHook(el);
+    }
+    el._enterCb = null;
+  });
+
+  if (!vnode.data.show) {
+    // remove pending leave element on enter by injecting an insert hook
+    mergeVNodeHook(vnode, 'insert', function () {
+      var parent = el.parentNode;
+      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
+      if (pendingNode &&
+        pendingNode.tag === vnode.tag &&
+        pendingNode.elm._leaveCb
+      ) {
+        pendingNode.elm._leaveCb();
+      }
+      enterHook && enterHook(el, cb);
+    });
+  }
+
+  // start enter transition
+  beforeEnterHook && beforeEnterHook(el);
+  if (expectsCSS) {
+    addTransitionClass(el, startClass);
+    addTransitionClass(el, activeClass);
+    nextFrame(function () {
+      removeTransitionClass(el, startClass);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
+        }
+      }
+    });
+  }
+
+  if (vnode.data.show) {
+    toggleDisplay && toggleDisplay();
+    enterHook && enterHook(el, cb);
+  }
+
+  if (!expectsCSS && !userWantsControl) {
+    cb();
+  }
+}
+
+function leave (vnode, rm) {
+  var el = vnode.elm;
+
+  // call enter callback now
+  if (isDef(el._enterCb)) {
+    el._enterCb.cancelled = true;
+    el._enterCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data) || el.nodeType !== 1) {
+    return rm()
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._leaveCb)) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var leaveClass = data.leaveClass;
+  var leaveToClass = data.leaveToClass;
+  var leaveActiveClass = data.leaveActiveClass;
+  var beforeLeave = data.beforeLeave;
+  var leave = data.leave;
+  var afterLeave = data.afterLeave;
+  var leaveCancelled = data.leaveCancelled;
+  var delayLeave = data.delayLeave;
+  var duration = data.duration;
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(leave);
+
+  var explicitLeaveDuration = toNumber(
+    isObject(duration)
+      ? duration.leave
+      : duration
+  );
+
+  if (isDef(explicitLeaveDuration)) {
+    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  }
+
+  var cb = el._leaveCb = once(function () {
+    if (el.parentNode && el.parentNode._pending) {
+      el.parentNode._pending[vnode.key] = null;
+    }
+    if (expectsCSS) {
+      removeTransitionClass(el, leaveToClass);
+      removeTransitionClass(el, leaveActiveClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveClass);
+      }
+      leaveCancelled && leaveCancelled(el);
+    } else {
+      rm();
+      afterLeave && afterLeave(el);
+    }
+    el._leaveCb = null;
+  });
+
+  if (delayLeave) {
+    delayLeave(performLeave);
+  } else {
+    performLeave();
+  }
+
+  function performLeave () {
+    // the delayed leave may have already been cancelled
+    if (cb.cancelled) {
+      return
+    }
+    // record leaving element
+    if (!vnode.data.show && el.parentNode) {
+      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+    }
+    beforeLeave && beforeLeave(el);
+    if (expectsCSS) {
+      addTransitionClass(el, leaveClass);
+      addTransitionClass(el, leaveActiveClass);
+      nextFrame(function () {
+        removeTransitionClass(el, leaveClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
+          }
+        }
+      });
+    }
+    leave && leave(el, cb);
+    if (!expectsCSS && !userWantsControl) {
+      cb();
+    }
+  }
+}
+
+// only used in dev mode
+function checkDuration (val, name, vnode) {
+  if (typeof val !== 'number') {
+    warn(
+      "<transition> explicit " + name + " duration is not a valid number - " +
+      "got " + (JSON.stringify(val)) + ".",
+      vnode.context
+    );
+  } else if (isNaN(val)) {
+    warn(
+      "<transition> explicit " + name + " duration is NaN - " +
+      'the duration expression might be incorrect.',
+      vnode.context
+    );
+  }
+}
+
+function isValidDuration (val) {
+  return typeof val === 'number' && !isNaN(val)
+}
+
+/**
+ * Normalize a transition hook's argument length. The hook may be:
+ * - a merged hook (invoker) with the original in .fns
+ * - a wrapped component method (check ._length)
+ * - a plain function (.length)
+ */
+function getHookArgumentsLength (fn) {
+  if (isUndef(fn)) {
+    return false
+  }
+  var invokerFns = fn.fns;
+  if (isDef(invokerFns)) {
+    // invoker
+    return getHookArgumentsLength(
+      Array.isArray(invokerFns)
+        ? invokerFns[0]
+        : invokerFns
+    )
+  } else {
+    return (fn._length || fn.length) > 1
+  }
+}
+
+function _enter (_, vnode) {
+  if (vnode.data.show !== true) {
+    enter(vnode);
+  }
+}
+
+var transition = inBrowser ? {
+  create: _enter,
+  activate: _enter,
+  remove: function remove$$1 (vnode, rm) {
+    /* istanbul ignore else */
+    if (vnode.data.show !== true) {
+      leave(vnode, rm);
+    } else {
+      rm();
+    }
+  }
+} : {};
+
+var platformModules = [
+  attrs,
+  klass,
+  events,
+  domProps,
+  style,
+  transition
+];
+
+/*  */
+
+// the directive module should be applied last, after all
+// built-in modules have been applied.
+var modules = platformModules.concat(baseModules);
+
+var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
+
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', function () {
+    var el = document.activeElement;
+    if (el && el.vmodel) {
+      trigger(el, 'input');
+    }
+  });
+}
+
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
+    if (vnode.tag === 'select') {
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
+      el._vOptions = [].map.call(el.options, getValue);
+    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+      el._vModifiers = binding.modifiers;
+      if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
+        // Safari < 10.2 & UIWebView doesn't fire compositionend when
+        // switching focus before confirming composition choice
+        // this also fixes the issue where some browsers e.g. iOS Chrome
+        // fires "change" instead of "input" on autocomplete.
+        el.addEventListener('change', onCompositionEnd);
+        /* istanbul ignore if */
+        if (isIE9) {
+          el.vmodel = true;
+        }
+      }
+    }
+  },
+
+  componentUpdated: function componentUpdated (el, binding, vnode) {
+    if (vnode.tag === 'select') {
+      setSelected(el, binding, vnode.context);
+      // in case the options rendered by v-for have changed,
+      // it's possible that the value is out-of-sync with the rendered options.
+      // detect such cases and filter out values that no longer has a matching
+      // option in the DOM.
+      var prevOptions = el._vOptions;
+      var curOptions = el._vOptions = [].map.call(el.options, getValue);
+      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
+      }
+    }
+  }
+};
+
+function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  var value = binding.value;
+  var isMultiple = el.multiple;
+  if (isMultiple && !Array.isArray(value)) {
+    warn(
+      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
+      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
+      vm
+    );
+    return
+  }
+  var selected, option;
+  for (var i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i];
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1;
+      if (option.selected !== selected) {
+        option.selected = selected;
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i;
+        }
+        return
+      }
+    }
+  }
+  if (!isMultiple) {
+    el.selectedIndex = -1;
+  }
+}
+
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
+function getValue (option) {
+  return '_value' in option
+    ? option._value
+    : option.value
+}
+
+function onCompositionStart (e) {
+  e.target.composing = true;
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) { return }
+  e.target.composing = false;
+  trigger(e.target, 'input');
+}
+
+function trigger (el, type) {
+  var e = document.createEvent('HTMLEvents');
+  e.initEvent(type, true, true);
+  el.dispatchEvent(e);
+}
+
+/*  */
+
+// recursively search for possible transition defined inside the component root
+function locateNode (vnode) {
+  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+    ? locateNode(vnode.componentInstance._vnode)
+    : vnode
+}
+
+var show = {
+  bind: function bind (el, ref, vnode) {
+    var value = ref.value;
+
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    var originalDisplay = el.__vOriginalDisplay =
+      el.style.display === 'none' ? '' : el.style.display;
+    if (value && transition$$1) {
+      vnode.data.show = true;
+      enter(vnode, function () {
+        el.style.display = originalDisplay;
+      });
+    } else {
+      el.style.display = value ? originalDisplay : 'none';
+    }
+  },
+
+  update: function update (el, ref, vnode) {
+    var value = ref.value;
+    var oldValue = ref.oldValue;
+
+    /* istanbul ignore if */
+    if (!value === !oldValue) { return }
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    if (transition$$1) {
+      vnode.data.show = true;
+      if (value) {
+        enter(vnode, function () {
+          el.style.display = el.__vOriginalDisplay;
+        });
+      } else {
+        leave(vnode, function () {
+          el.style.display = 'none';
+        });
+      }
+    } else {
+      el.style.display = value ? el.__vOriginalDisplay : 'none';
+    }
+  },
+
+  unbind: function unbind (
+    el,
+    binding,
+    vnode,
+    oldVnode,
+    isDestroy
+  ) {
+    if (!isDestroy) {
+      el.style.display = el.__vOriginalDisplay;
+    }
+  }
+};
+
+var platformDirectives = {
+  model: directive,
+  show: show
+};
+
+/*  */
+
+var transitionProps = {
+  name: String,
+  appear: Boolean,
+  css: Boolean,
+  mode: String,
+  type: String,
+  enterClass: String,
+  leaveClass: String,
+  enterToClass: String,
+  leaveToClass: String,
+  enterActiveClass: String,
+  leaveActiveClass: String,
+  appearClass: String,
+  appearActiveClass: String,
+  appearToClass: String,
+  duration: [Number, String, Object]
+};
+
+// in case the child is also an abstract component, e.g. <keep-alive>
+// we want to recursively retrieve the real component to be rendered
+function getRealChild (vnode) {
+  var compOptions = vnode && vnode.componentOptions;
+  if (compOptions && compOptions.Ctor.options.abstract) {
+    return getRealChild(getFirstComponentChild(compOptions.children))
+  } else {
+    return vnode
+  }
+}
+
+function extractTransitionData (comp) {
+  var data = {};
+  var options = comp.$options;
+  // props
+  for (var key in options.propsData) {
+    data[key] = comp[key];
+  }
+  // events.
+  // extract listeners and pass them directly to the transition methods
+  var listeners = options._parentListeners;
+  for (var key$1 in listeners) {
+    data[camelize(key$1)] = listeners[key$1];
+  }
+  return data
+}
+
+function placeholder (h, rawChild) {
+  if (/\d-keep-alive$/.test(rawChild.tag)) {
+    return h('keep-alive', {
+      props: rawChild.componentOptions.propsData
+    })
+  }
+}
+
+function hasParentTransition (vnode) {
+  while ((vnode = vnode.parent)) {
+    if (vnode.data.transition) {
+      return true
+    }
+  }
+}
+
+function isSameChild (child, oldChild) {
+  return oldChild.key === child.key && oldChild.tag === child.tag
+}
+
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
+var Transition = {
+  name: 'transition',
+  props: transitionProps,
+  abstract: true,
+
+  render: function render (h) {
+    var this$1 = this;
+
+    var children = this.$slots.default;
+    if (!children) {
+      return
+    }
+
+    // filter out text nodes (possible whitespaces)
+    children = children.filter(isNotTextNode);
+    /* istanbul ignore if */
+    if (!children.length) {
+      return
+    }
+
+    // warn multiple elements
+    if (children.length > 1) {
+      warn(
+        '<transition> can only be used on a single element. Use ' +
+        '<transition-group> for lists.',
+        this.$parent
+      );
+    }
+
+    var mode = this.mode;
+
+    // warn invalid mode
+    if (mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
+      warn(
+        'invalid <transition> mode: ' + mode,
+        this.$parent
+      );
+    }
+
+    var rawChild = children[0];
+
+    // if this is a component root node and the component's
+    // parent container node also has transition, skip.
+    if (hasParentTransition(this.$vnode)) {
+      return rawChild
+    }
+
+    // apply transition data to child
+    // use getRealChild() to ignore abstract components e.g. keep-alive
+    var child = getRealChild(rawChild);
+    /* istanbul ignore if */
+    if (!child) {
+      return rawChild
+    }
+
+    if (this._leaving) {
+      return placeholder(h, rawChild)
+    }
+
+    // ensure a key that is unique to the vnode type and to this transition
+    // component instance. This key will be used to remove pending leaving nodes
+    // during entering.
+    var id = "__transition-" + (this._uid) + "-";
+    child.key = child.key == null
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
+      : isPrimitive(child.key)
+        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+        : child.key;
+
+    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+    var oldRawChild = this._vnode;
+    var oldChild = getRealChild(oldRawChild);
+
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
+      child.data.show = true;
+    }
+
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+    ) {
+      // replace old child transition data with fresh one
+      // important for dynamic transitions!
+      var oldData = oldChild.data.transition = extend({}, data);
+      // handle transition mode
+      if (mode === 'out-in') {
+        // return placeholder node and queue update when leave finishes
+        this._leaving = true;
+        mergeVNodeHook(oldData, 'afterLeave', function () {
+          this$1._leaving = false;
+          this$1.$forceUpdate();
+        });
+        return placeholder(h, rawChild)
+      } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
+        var delayedLeave;
+        var performLeave = function () { delayedLeave(); };
+        mergeVNodeHook(data, 'afterEnter', performLeave);
+        mergeVNodeHook(data, 'enterCancelled', performLeave);
+        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+      }
+    }
+
+    return rawChild
+  }
+};
+
+/*  */
+
+var props = extend({
+  tag: String,
+  moveClass: String
+}, transitionProps);
+
+delete props.mode;
+
+var TransitionGroup = {
+  props: props,
+
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
+  render: function render (h) {
+    var tag = this.tag || this.$vnode.data.tag || 'span';
+    var map = Object.create(null);
+    var prevChildren = this.prevChildren = this.children;
+    var rawChildren = this.$slots.default || [];
+    var children = this.children = [];
+    var transitionData = extractTransitionData(this);
+
+    for (var i = 0; i < rawChildren.length; i++) {
+      var c = rawChildren[i];
+      if (c.tag) {
+        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+          children.push(c);
+          map[c.key] = c
+          ;(c.data || (c.data = {})).transition = transitionData;
+        } else {
+          var opts = c.componentOptions;
+          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+          warn(("<transition-group> children must be keyed: <" + name + ">"));
+        }
+      }
+    }
+
+    if (prevChildren) {
+      var kept = [];
+      var removed = [];
+      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
+        var c$1 = prevChildren[i$1];
+        c$1.data.transition = transitionData;
+        c$1.data.pos = c$1.elm.getBoundingClientRect();
+        if (map[c$1.key]) {
+          kept.push(c$1);
+        } else {
+          removed.push(c$1);
+        }
+      }
+      this.kept = h(tag, null, kept);
+      this.removed = removed;
+    }
+
+    return h(tag, null, children)
+  },
+
+  updated: function updated () {
+    var children = this.prevChildren;
+    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
+    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+      return
+    }
+
+    // we divide the work into three loops to avoid mixing DOM reads and writes
+    // in each iteration - which helps prevent layout thrashing.
+    children.forEach(callPendingCbs);
+    children.forEach(recordPosition);
+    children.forEach(applyTranslation);
+
+    // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
+    children.forEach(function (c) {
+      if (c.data.moved) {
+        var el = c.elm;
+        var s = el.style;
+        addTransitionClass(el, moveClass);
+        s.transform = s.WebkitTransform = s.transitionDuration = '';
+        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
+          if (!e || /transform$/.test(e.propertyName)) {
+            el.removeEventListener(transitionEndEvent, cb);
+            el._moveCb = null;
+            removeTransitionClass(el, moveClass);
+          }
+        });
+      }
+    });
+  },
+
+  methods: {
+    hasMove: function hasMove (el, moveClass) {
+      /* istanbul ignore if */
+      if (!hasTransition) {
+        return false
+      }
+      /* istanbul ignore if */
+      if (this._hasMove) {
+        return this._hasMove
+      }
+      // Detect whether an element with the move class applied has
+      // CSS transitions. Since the element may be inside an entering
+      // transition at this very moment, we make a clone of it and remove
+      // all other transition classes applied to ensure only the move class
+      // is applied.
+      var clone = el.cloneNode();
+      if (el._transitionClasses) {
+        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+      }
+      addClass(clone, moveClass);
+      clone.style.display = 'none';
+      this.$el.appendChild(clone);
+      var info = getTransitionInfo(clone);
+      this.$el.removeChild(clone);
+      return (this._hasMove = info.hasTransform)
+    }
+  }
+};
+
+function callPendingCbs (c) {
+  /* istanbul ignore if */
+  if (c.elm._moveCb) {
+    c.elm._moveCb();
+  }
+  /* istanbul ignore if */
+  if (c.elm._enterCb) {
+    c.elm._enterCb();
+  }
+}
+
+function recordPosition (c) {
+  c.data.newPos = c.elm.getBoundingClientRect();
+}
+
+function applyTranslation (c) {
+  var oldPos = c.data.pos;
+  var newPos = c.data.newPos;
+  var dx = oldPos.left - newPos.left;
+  var dy = oldPos.top - newPos.top;
+  if (dx || dy) {
+    c.data.moved = true;
+    var s = c.elm.style;
+    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
+    s.transitionDuration = '0s';
+  }
+}
+
+var platformComponents = {
+  Transition: Transition,
+  TransitionGroup: TransitionGroup
+};
+
+/*  */
+
+// install platform specific utils
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
+
+// install platform runtime directives & components
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
+
+// install platform patch function
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
+
+// public mount method
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && inBrowser ? query(el) : undefined;
+  return mountComponent(this, el, hydrating)
+};
+
+// devtools global hook
+/* istanbul ignore next */
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else if (
+        isChrome
+      ) {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
+      console[console.info ? 'info' : 'log'](
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
+      );
+    }
+  }, 0);
+}
+
+/*  */
+
+module.exports = Vue;
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index bd2f965ac1c..b831bfefc83 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2719,6 +2719,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -2750,8 +2758,7 @@ function lifecycleMixin (Vue) {
     var vm = this;
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
@@ -2762,7 +2769,7 @@ function lifecycleMixin (Vue) {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -5172,7 +5179,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18-beta.0';
+Vue.version = '2.5.18';
 
 /*  */
 
@@ -7896,6 +7903,7 @@ var TransitionGroup = {
 
     var update = this._update;
     this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
       // force removing pass
       this$1.__patch__(
         this$1._vnode,
@@ -7904,6 +7912,7 @@ var TransitionGroup = {
         true // removeOnly (!important, avoids unnecessary moves)
       );
       this$1._vnode = this$1.kept;
+      restoreActiveInstance();
       update.call(this$1, vnode, hydrating);
     };
   },
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
new file mode 100644
index 00000000000..5beea1d7e61
--- /dev/null
+++ b/dist/vue.runtime.common.prod.js
@@ -0,0 +1,6 @@
+/*!
+ * Vue.js v2.5.18-beta.0
+ * (c) 2014-2018 Evan You
+ * Released under the MIT License.
+ */
+"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var p=f("key,ref,slot,slot-scope,is");function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var v=Object.prototype.hasOwnProperty;function h(t,e){return v.call(t,e)}function m(t){var e=Object.create(null);return function(n){return 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Gr=function(t){var i,a,s={},c=t.modules,u=t.nodeOps;for(i=0;i<Fn.length;++i)for(s[Fn[i]]=[],a=0;a<c.length;++a)n(c[a][Fn[i]])&&s[Fn[i]].push(c[a][Fn[i]]);function l(t){var e=u.parentNode(t);n(e)&&u.removeChild(e,t)}function p(t,e,o,i,a,c,l){if(n(t.elm)&&n(c)&&(t=c[l]=pt(t)),t.isRootInsert=!a,!function(t,e,o,i){var a=t.data;if(n(a)){var c=n(t.componentInstance)&&a.keepAlive;if(n(a=a.hook)&&n(a=a.init)&&a(t,!1),n(t.componentInstance))return d(t,e),v(o,t.elm,i),r(c)&&function(t,e,r,o){for(var i,a=t;a.componentInstance;)if(a=a.componentInstance._vnode,n(i=a.data)&&n(i=i.transition)){for(i=0;i<s.activate.length;++i)s.activate[i](Mn,a);e.push(a);break}v(r,t.elm,o)}(t,e,o,i),!0}}(t,e,o,i)){var f=t.data,p=t.children,m=t.tag;n(m)?(t.elm=t.ns?u.createElementNS(t.ns,m):u.createElement(m,t),g(t),h(t,p,e),n(f)&&y(t,e),v(o,t.elm,i)):r(t.isComment)?(t.elm=u.createComment(t.text),v(o,t.elm,i)):(t.elm=u.createTextNode(t.text),v(o,t.elm,i))}}function d(t,e){n(t.data.pendingInsert)&&(e.push.apply(e,t.data.pendingInsert),t.data.pendingInsert=null),t.elm=t.componentInstance.$el,m(t)?(y(t,e),g(t)):(Ln(t),e.push(t))}function v(t,e,r){n(t)&&(n(r)?u.parentNode(r)===t&&u.insertBefore(t,e,r):u.appendChild(t,e))}function h(t,e,n){if(Array.isArray(e))for(var r=0;r<e.length;++r)p(e[r],n,t.elm,null,!0,e,r);else o(t.text)&&u.appendChild(t.elm,u.createTextNode(String(t.text)))}function m(t){for(;t.componentInstance;)t=t.componentInstance._vnode;return n(t.tag)}function y(t,e){for(var r=0;r<s.create.length;++r)s.create[r](Mn,t);n(i=t.data.hook)&&(n(i.create)&&i.create(Mn,t),n(i.insert)&&e.push(t))}function g(t){var e;if(n(e=t.fnScopeId))u.setStyleScope(t.elm,e);else for(var r=t;r;)n(e=r.context)&&n(e=e.$options._scopeId)&&u.setStyleScope(t.elm,e),r=r.parent;n(e=ve)&&e!==t.context&&e!==t.fnContext&&n(e=e.$options._scopeId)&&u.setStyleScope(t.elm,e)}function _(t,e,n,r,o,i){for(;r<=o;++r)p(n[r],i,t,e,!1,n,r)}function b(t){var e,r,o=t.data;if(n(o))for(n(e=o.hook)&&n(e=e.destroy)&&e(t),e=0;e<s.destroy.length;++e)s.destroy[e](t);if(n(e=t.children))for(r=0;r<t.children.length;++r)b(t.children[r])}function C(t,e,r,o){for(;r<=o;++r){var i=e[r];n(i)&&(n(i.tag)?(w(i),b(i)):l(i.elm))}}function w(t,e){if(n(e)||n(t.data)){var r,o=s.remove.length+1;for(n(e)?e.listeners+=o:e=function(t,e){function n(){0==--n.listeners&&l(t)}return n.listeners=e,n}(t.elm,o),n(r=t.componentInstance)&&n(r=r._vnode)&&n(r.data)&&w(r,e),r=0;r<s.remove.length;++r)s.remove[r](t,e);n(r=t.data.hook)&&n(r=r.remove)?r(t,e):e()}else l(t.elm)}function A(t,e,r,o){for(var i=r;i<o;i++){var a=e[i];if(n(a)&&Un(t,a))return i}}function $(t,o,i,a,c,l){if(t!==o){n(o.elm)&&n(a)&&(o=a[c]=pt(o));var f=o.elm=t.elm;if(r(t.isAsyncPlaceholder))n(o.asyncFactory.resolved)?k(t.elm,o,i):o.isAsyncPlaceholder=!0;else if(r(o.isStatic)&&r(t.isStatic)&&o.key===t.key&&(r(o.isCloned)||r(o.isOnce)))o.componentInstance=t.componentInstance;else{var d,v=o.data;n(v)&&n(d=v.hook)&&n(d=d.prepatch)&&d(t,o);var h=t.children,y=o.children;if(n(v)&&m(o)){for(d=0;d<s.update.length;++d)s.update[d](t,o);n(d=v.hook)&&n(d=d.update)&&d(t,o)}e(o.text)?n(h)&&n(y)?h!==y&&function(t,r,o,i,a){for(var s,c,l,f=0,d=0,v=r.length-1,h=r[0],m=r[v],y=o.length-1,g=o[0],b=o[y],w=!a;f<=v&&d<=y;)e(h)?h=r[++f]:e(m)?m=r[--v]:Un(h,g)?($(h,g,i,o,d),h=r[++f],g=o[++d]):Un(m,b)?($(m,b,i,o,y),m=r[--v],b=o[--y]):Un(h,b)?($(h,b,i,o,y),w&&u.insertBefore(t,h.elm,u.nextSibling(m.elm)),h=r[++f],b=o[--y]):Un(m,g)?($(m,g,i,o,d),w&&u.insertBefore(t,m.elm,h.elm),m=r[--v],g=o[++d]):(e(s)&&(s=Bn(r,f,v)),e(c=n(g.key)?s[g.key]:A(g,r,f,v))?p(g,i,t,h.elm,!1,o,d):Un(l=r[c],g)?($(l,g,i,o,d),r[c]=void 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l=!0,f=t.firstChild,p=0;p<u.length;p++){if(!f||!k(f,u[p],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Gt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,f=[];if(e(t))l=!0,p(o,f);else{var d=n(t.nodeType);if(!d&&Un(t,o))$(t,o,f,null,null,a);else{if(d){if(1===t.nodeType&&t.hasAttribute(T)&&(t.removeAttribute(T),i=!0),r(i)&&k(t,o,f))return x(o,f,!0),t;c=t,t=new ct(u.tagName(c).toLowerCase(),{},[],void 0,c)}var v=t.elm,h=u.parentNode(v);if(p(o,f,v._leaveCb?null:h,u.nextSibling(v)),n(o.parent))for(var y=o.parent,g=m(o);y;){for(var _=0;_<s.destroy.length;++_)s.destroy[_](y);if(y.elm=o.elm,g){for(var w=0;w<s.create.length;++w)s.create[w](Mn,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else Ln(y);y=y.parent}n(h)?C(0,[t],0,0):n(t.tag)&&b(t)}}return x(o,f,l),o.elm}n(t)&&b(t)}}({nodeOps:Dn,modules:[Qn,er,cr,fr,wr,U?{create:Xr,activate:Xr,remove:function(t,e){!0!==t.data.show?Wr(t,e):e()}}:{}].concat(Xn)});W&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&ro(t,"input")});var Jr={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?te(n,"postpatch",function(){Jr.componentUpdated(t,e,n)}):Zr(t,e,n.context),t._vOptions=[].map.call(t.options,to)):("textarea"===n.tag||Pn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",eo),t.addEventListener("compositionend",no),t.addEventListener("change",no),W&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Zr(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,to);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return Yr(t,o)}):e.value!==e.oldValue&&Yr(e.value,o))&&ro(t,"change")}}};function Zr(t,e,n){Qr(t,e,n),(z||q)&&setTimeout(function(){Qr(t,e,n)},0)}function Qr(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=E(r,to(a))>-1,a.selected!==i&&(a.selected=i);else if(j(to(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function Yr(t,e){return e.every(function(e){return!j(e,t)})}function to(t){return"_value"in t?t._value:t.value}function eo(t){t.target.composing=!0}function no(t){t.target.composing&&(t.target.composing=!1,ro(t.target,"input"))}function ro(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function oo(t){return!t.componentInstance||t.data&&t.data.transition?t:oo(t.componentInstance._vnode)}var io={model:Jr,show:{bind:function(t,e,n){var r=e.value,o=(n=oo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,zr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=oo(n)).data&&n.data.transition?(n.data.show=!0,r?zr(n,function(){t.style.display=t.__vOriginalDisplay}):Wr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},ao={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function so(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?so(ae(e.children)):t}function co(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[g(i)]=o[i];return e}function uo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var lo=function(t){return t.tag||ie(t)},fo=function(t){return"show"===t.name},po={name:"transition",props:ao,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(lo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=so(i);if(!a)return i;if(this._leaving)return uo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=co(this),u=this._vnode,l=so(u);if(a.data.directives&&a.data.directives.some(fo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!ie(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=$({},c);if("out-in"===r)return this._leaving=!0,te(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),uo(t,i);if("in-out"===r){if(ie(a))return u;var p,d=function(){p()};te(c,"afterEnter",d),te(c,"enterCancelled",d),te(f,"delayLeave",function(t){p=t})}}return i}}},vo=$({tag:String,moveClass:String},ao);function ho(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function mo(t){t.data.newPos=t.elm.getBoundingClientRect()}function yo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete vo.mode;var go={Transition:po,TransitionGroup:{props:vo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=co(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(ho),t.forEach(mo),t.forEach(yo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Mr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Tr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Tr,t),n._moveCb=null,Fr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Sr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){xr(n,t)}),$r(n,e),n.style.display="none",this.$el.appendChild(n);var r=Br(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};cn.config.mustUseProp=function(t,e,n){return"value"===n&&yn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},cn.config.isReservedTag=In,cn.config.isReservedAttr=mn,cn.config.getTagNamespace=function(t){return En(t)?"svg":"math"===t?"math":void 0},cn.config.isUnknownElement=function(t){if(!U)return!0;if(In(t))return!1;if(t=t.toLowerCase(),null!=Tn[t])return Tn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Tn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Tn[t]=/HTMLUnknownElement/.test(e.toString())},$(cn.options.directives,io),$(cn.options.components,go),cn.prototype.__patch__=U?Gr:O,cn.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=lt),ye(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Oe(t,r,O,{before:function(){t._isMounted&&ye(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,ye(t,"mounted")),t}(this,t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},U&&setTimeout(function(){N.devtools&&Q&&Q.emit("init",cn)},0),module.exports=cn;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 764fab1cc0a..853bb64b97b 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2717,6 +2717,14 @@ function resolveScopedSlots (
 var activeInstance = null;
 var isUpdatingChildComponent = false;
 
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
 function initLifecycle (vm) {
   var options = vm.$options;
 
@@ -2748,8 +2756,7 @@ function lifecycleMixin (Vue) {
     var vm = this;
     var prevEl = vm.$el;
     var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
+    var restoreActiveInstance = setActiveInstance(vm);
     vm._vnode = vnode;
     // Vue.prototype.__patch__ is injected in entry points
     // based on the rendering backend used.
@@ -2760,7 +2767,7 @@ function lifecycleMixin (Vue) {
       // updates
       vm.$el = vm.__patch__(prevVnode, vnode);
     }
-    activeInstance = prevActiveInstance;
+    restoreActiveInstance();
     // update __vue__ reference
     if (prevEl) {
       prevEl.__vue__ = null;
@@ -5170,7 +5177,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18-beta.0';
+Vue.version = '2.5.18';
 
 /*  */
 
@@ -7894,6 +7901,7 @@ var TransitionGroup = {
 
     var update = this._update;
     this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
       // force removing pass
       this$1.__patch__(
         this$1._vnode,
@@ -7902,6 +7910,7 @@ var TransitionGroup = {
         true // removeOnly (!important, avoids unnecessary moves)
       );
       this$1._vnode = this$1.kept;
+      restoreActiveInstance();
       update.call(this$1, vnode, hydrating);
     };
   },
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 8b95e256ab8..7c65acc7d2e 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2715,6 +2715,14 @@
   var activeInstance = null;
   var isUpdatingChildComponent = false;
 
+  function setActiveInstance(vm) {
+    var prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    return function () {
+      activeInstance = prevActiveInstance;
+    }
+  }
+
   function initLifecycle (vm) {
     var options = vm.$options;
 
@@ -2746,8 +2754,7 @@
       var vm = this;
       var prevEl = vm.$el;
       var prevVnode = vm._vnode;
-      var prevActiveInstance = activeInstance;
-      activeInstance = vm;
+      var restoreActiveInstance = setActiveInstance(vm);
       vm._vnode = vnode;
       // Vue.prototype.__patch__ is injected in entry points
       // based on the rendering backend used.
@@ -2758,7 +2765,7 @@
         // updates
         vm.$el = vm.__patch__(prevVnode, vnode);
       }
-      activeInstance = prevActiveInstance;
+      restoreActiveInstance();
       // update __vue__ reference
       if (prevEl) {
         prevEl.__vue__ = null;
@@ -5154,7 +5161,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.18-beta.0';
+  Vue.version = '2.5.18';
 
   /*  */
 
@@ -7875,6 +7882,7 @@
 
       var update = this._update;
       this._update = function (vnode, hydrating) {
+        var restoreActiveInstance = setActiveInstance(this$1);
         // force removing pass
         this$1.__patch__(
           this$1._vnode,
@@ -7883,6 +7891,7 @@
           true // removeOnly (!important, avoids unnecessary moves)
         );
         this$1._vnode = this$1.kept;
+        restoreActiveInstance();
         update.call(this$1, vnode, hydrating);
       };
     },
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index f12d0bd2720..8eedd8ed574 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.18-beta.0
+ * Vue.js v2.5.18
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
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f=l.data.transition=$({},c);if("out-in"===r)return this._leaving=!0,te(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),lo(t,i);if("in-out"===r){if(ie(a))return u;var p,d=function(){p()};te(c,"afterEnter",d),te(c,"enterCancelled",d),te(f,"delayLeave",function(t){p=t})}}return i}}},ho=$({tag:String,moveClass:String},so);function mo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function yo(t){t.data.newPos=t.elm.getBoundingClientRect()}function go(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete ho.mode;var _o={Transition:vo,TransitionGroup:{props:ho,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=he(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=uo(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(mo),t.forEach(yo),t.forEach(go),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Fr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Pr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Pr,t),n._moveCb=null,Rr(n,e))})}}))},methods:{hasMove:function(t,e){if(!jr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Or(n,t)}),xr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Br(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return un.config.mustUseProp=function(t,e,n){return"value"===n&&gn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},un.config.isReservedTag=Tn,un.config.isReservedAttr=yn,un.config.getTagNamespace=function(t){return In(t)?"svg":"math"===t?"math":void 0},un.config.isUnknownElement=function(t){if(!U)return!0;if(Tn(t))return!1;if(t=t.toLowerCase(),null!=Pn[t])return Pn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Pn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Pn[t]=/HTMLUnknownElement/.test(e.toString())},$(un.options.directives,ao),$(un.options.components,_o),un.prototype.__patch__=U?Jr:O,un.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=lt),ge(t,"beforeMount"),r=function(){t._update(t._render(),n)},new ke(t,r,O,{before:function(){t._isMounted&&ge(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,ge(t,"mounted")),t}(this,t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},U&&setTimeout(function(){N.devtools&&Q&&Q.emit("init",un)},0),un});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 43386c7300b..6acca21ea30 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -4559,13 +4559,15 @@
     esc: ['Esc', 'Escape'],
     tab: 'Tab',
     enter: 'Enter',
-    space: ' ',
+    // #9112: IE11 uses `Spacebar` for Space key name.
+    space: [' ', 'Spacebar'],
     // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
     up: ['Up', 'ArrowUp'],
     left: ['Left', 'ArrowLeft'],
     right: ['Right', 'ArrowRight'],
     down: ['Down', 'ArrowDown'],
-    'delete': ['Backspace', 'Delete']
+    // #9112: IE11 uses `Del` for Delete key name.
+    'delete': ['Backspace', 'Delete', 'Del']
   };
 
   // #4868: modifiers that prevent the execution of the listener
@@ -5056,9 +5058,7 @@
         el$1.tag !== 'template' &&
         el$1.tag !== 'slot'
       ) {
-        // because el may be a functional component and return an Array instead of a single root.
-        // In this case, just a simple normalization is needed
-        var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+        var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
         return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
       }
       var normalizationType$1 = checkSkip
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 0b2b0a973af..f3a39aae0c0 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -4322,13 +4322,15 @@ var keyNames = {
   esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -4822,9 +4824,7 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      // because el may be a functional component and return an Array instead of a single root.
-      // In this case, just a simple normalization is needed
-      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
@@ -7972,7 +7972,10 @@ var TemplateRenderer = function TemplateRenderer (options) {
   // extra functionality with client manifest
   if (options.clientManifest) {
     var clientManifest = this.clientManifest = options.clientManifest;
-    this.publicPath = clientManifest.publicPath;
+    // ensure publicPath ends with /
+    this.publicPath = clientManifest.publicPath === ''
+      ? ''
+      : clientManifest.publicPath.replace(/([^\/])$/, '$1/');
     // preload/prefetch directives
     this.preloadFiles = (clientManifest.initial || []).map(normalizeFile);
     this.prefetchFiles = (clientManifest.async || []).map(normalizeFile);
@@ -8035,7 +8038,7 @@ TemplateRenderer.prototype.renderStyles = function renderStyles (context) {
       ? cssFiles.map(function (ref) {
           var file = ref.file;
 
-          return ("<link rel=\"stylesheet\" href=\"" + (this$1.getPublicPath(file)) + "\">");
+          return ("<link rel=\"stylesheet\" href=\"" + (this$1.publicPath) + file + "\">");
     }).join('')
       : '') +
     // context.styles is a getter exposed by vue-style-loader which contains
@@ -8081,7 +8084,7 @@ TemplateRenderer.prototype.renderPreloadLinks = function renderPreloadLinks (con
       if (asType === 'font') {
         extra = " type=\"font/" + extension + "\" crossorigin";
       }
-      return ("<link rel=\"preload\" href=\"" + (this$1.getPublicPath(file)) + "\"" + (asType !== '' ? (" as=\"" + asType + "\"") : '') + extra + ">")
+      return ("<link rel=\"preload\" href=\"" + (this$1.publicPath) + file + "\"" + (asType !== '' ? (" as=\"" + asType + "\"") : '') + extra + ">")
     }).join('')
   } else {
     return ''
@@ -8108,7 +8111,7 @@ TemplateRenderer.prototype.renderPrefetchLinks = function renderPrefetchLinks (c
       if (alreadyRendered(file)) {
         return ''
       }
-      return ("<link rel=\"prefetch\" href=\"" + (this$1.getPublicPath(file)) + "\">")
+      return ("<link rel=\"prefetch\" href=\"" + (this$1.publicPath) + file + "\">")
     }).join('')
   } else {
     return ''
@@ -8146,7 +8149,7 @@ TemplateRenderer.prototype.renderScripts = function renderScripts (context) {
     return needed.map(function (ref) {
         var file = ref.file;
 
-      return ("<script src=\"" + (this$1.getPublicPath(file)) + "\" defer></script>")
+      return ("<script src=\"" + (this$1.publicPath) + file + "\" defer></script>")
     }).join('')
   } else {
     return ''
@@ -8169,10 +8172,6 @@ TemplateRenderer.prototype.createStream = function createStream (context) {
   return new TemplateStream(this, this.parsedTemplate, context || {})
 };
 
-TemplateRenderer.prototype.getPublicPath = function getPublicPath (file) {
-  return path.posix.join(this.publicPath, file)
-};
-
 function normalizeFile (file) {
   var withoutQuery = file.replace(/\?.*/, '');
   var extension = path.extname(withoutQuery).slice(1);
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index dd85673c6bd..ee21262b3ef 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.18-beta.0",
+  "version": "2.5.18",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 409df58dc66..213b3e561ae 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -3687,13 +3687,15 @@
     esc: ['Esc', 'Escape'],
     tab: 'Tab',
     enter: 'Enter',
-    space: ' ',
+    // #9112: IE11 uses `Spacebar` for Space key name.
+    space: [' ', 'Spacebar'],
     // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
     up: ['Up', 'ArrowUp'],
     left: ['Left', 'ArrowLeft'],
     right: ['Right', 'ArrowRight'],
     down: ['Down', 'ArrowDown'],
-    'delete': ['Backspace', 'Delete']
+    // #9112: IE11 uses `Del` for Delete key name.
+    'delete': ['Backspace', 'Delete', 'Del']
   };
 
   // #4868: modifiers that prevent the execution of the listener
@@ -4184,9 +4186,7 @@
         el$1.tag !== 'template' &&
         el$1.tag !== 'slot'
       ) {
-        // because el may be a functional component and return an Array instead of a single root.
-        // In this case, just a simple normalization is needed
-        var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+        var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
         return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
       }
       var normalizationType$1 = checkSkip
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 489c6b5e556..4ac67df997b 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -3316,13 +3316,15 @@ var keyNames = {
   esc: ['Esc', 'Escape'],
   tab: 'Tab',
   enter: 'Enter',
-  space: ' ',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
   // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
   up: ['Up', 'ArrowUp'],
   left: ['Left', 'ArrowLeft'],
   right: ['Right', 'ArrowRight'],
   down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
 };
 
 // #4868: modifiers that prevent the execution of the listener
@@ -3816,9 +3818,7 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      // because el may be a functional component and return an Array instead of a single root.
-      // In this case, just a simple normalization is needed
-      var normalizationType = state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index e3ef321bf48..1f992d23f70 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.18-beta.0",
+  "version": "2.5.18",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From dadc918c05ff96063eb9f6c48c126db71758213b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 7 Dec 2018 16:09:08 -0500
Subject: [PATCH 614/911] build: release 2.5.18

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index e29a879d1ed..4389f6bb3f0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.18-beta.0",
+  "version": "2.5.18",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From a89384c8d93a3e5a382f60a84d60f0675408ed75 Mon Sep 17 00:00:00 2001
From: sqal <sqal08@gmail.com>
Date: Sun, 9 Dec 2018 21:42:20 +0100
Subject: [PATCH 615/911] test(ssr): add basic directives test (#9166)

---
 test/ssr/jasmine.js         |  3 ++-
 test/ssr/ssr-string.spec.js | 17 +++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/test/ssr/jasmine.js b/test/ssr/jasmine.js
index dfd70f7c253..b632601642d 100644
--- a/test/ssr/jasmine.js
+++ b/test/ssr/jasmine.js
@@ -4,6 +4,7 @@ module.exports = {
     '*.spec.js'
   ],
   helpers: [
-    require.resolve('@babel/register')
+    require.resolve('@babel/register'),
+    '../helpers/to-have-been-warned.js'
   ]
 }
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index a84c7267e08..4079c15e061 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -794,6 +794,23 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('should resolve custom directive', done => {
+    renderToString(new Vue({
+      directives: {
+        test: {
+          bind(node) {
+            node.data.domProps = { textContent: 'test' }
+          }
+        }
+      },
+      template: '<div v-test></div>',
+    }), (err, result) => {
+      expect('Failed to resolve directive: test').not.toHaveBeenWarned()
+      expect(result).toContain('<div data-server-rendered="true">test</div>')
+      done()
+    })
+  })
+
   it('custom directives', done => {
     const renderer = createRenderer({
       directives: {

From 780dac561b9cd6c3cec28f154f76e7d28352ebf3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 9 Dec 2018 15:47:43 -0500
Subject: [PATCH 616/911] fix(ssr): should not warn for custom directives that
 do not have ssr implementation

fix #9167
---
 src/server/render.js        |  2 +-
 test/ssr/ssr-string.spec.js | 33 ++++++++++++++++-----------------
 2 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/src/server/render.js b/src/server/render.js
index 965b64febbb..581a6dfd52c 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -326,7 +326,7 @@ function renderStartingTag (node: VNode, context) {
       for (let i = 0; i < dirs.length; i++) {
         const name = dirs[i].name
         if (name !== 'show') {
-          const dirRenderer = resolveAsset(context, 'directives', name, true)
+          const dirRenderer = resolveAsset(context, 'directives', name)
           if (dirRenderer) {
             // directives mutate the node's data
             // which then gets rendered by modules
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 4079c15e061..2f98bab8fae 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -794,23 +794,6 @@ describe('SSR: renderToString', () => {
     })
   })
 
-  it('should resolve custom directive', done => {
-    renderToString(new Vue({
-      directives: {
-        test: {
-          bind(node) {
-            node.data.domProps = { textContent: 'test' }
-          }
-        }
-      },
-      template: '<div v-test></div>',
-    }), (err, result) => {
-      expect('Failed to resolve directive: test').not.toHaveBeenWarned()
-      expect(result).toContain('<div data-server-rendered="true">test</div>')
-      done()
-    })
-  })
-
   it('custom directives', done => {
     const renderer = createRenderer({
       directives: {
@@ -843,6 +826,22 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('should not warn for custom directives that do not have server-side implementation', done => {
+    renderToString(new Vue({
+      directives: {
+        test: {
+          bind() {
+            // noop
+          }
+        }
+      },
+      template: '<div v-test></div>',
+    }), () => {
+      expect('Failed to resolve directive: test').not.toHaveBeenWarned()
+      done()
+    })
+  })
+
   it('_scopeId', done => {
     renderVmWithOptions({
       _scopeId: '_v-parent',

From 5d721a42b140865e50a78445fe21c5f270bde703 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 9 Dec 2018 15:52:17 -0500
Subject: [PATCH 617/911] revert: fix(sfc): avoid deindent when pad option is
 specified (#7647)

This reverts commit 9d2f9a034f9c40d5ba6d8b1e131b1bfb675dc1cf.
---
 src/sfc/parser.js                        |  8 ++----
 test/unit/modules/sfc/sfc-parser.spec.js | 33 +++++-------------------
 2 files changed, 8 insertions(+), 33 deletions(-)

diff --git a/src/sfc/parser.js b/src/sfc/parser.js
index f6e83d362a3..d7868a40ab8 100644
--- a/src/sfc/parser.js
+++ b/src/sfc/parser.js
@@ -83,15 +83,11 @@ export function parseComponent (
   function end (tag: string, start: number) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start
-      let text = content.slice(currentBlock.start, currentBlock.end)
+      let text = deindent(content.slice(currentBlock.start, currentBlock.end))
       // pad content so that linters and pre-processors can output correct
       // line numbers in errors and warnings
-      if (options.pad) {
+      if (currentBlock.type !== 'template' && options.pad) {
         text = padContent(currentBlock, options.pad) + text
-      } else {
-        // avoid to deindent if pad option is specified
-        // to retain original source position.
-        text = deindent(text)
       }
       currentBlock.content = text
       currentBlock = null
diff --git a/test/unit/modules/sfc/sfc-parser.spec.js b/test/unit/modules/sfc/sfc-parser.spec.js
index 30a9f9e2c43..4cf6bad574a 100644
--- a/test/unit/modules/sfc/sfc-parser.spec.js
+++ b/test/unit/modules/sfc/sfc-parser.spec.js
@@ -71,42 +71,21 @@ describe('Single File Component parser', () => {
     const padLine = parseComponent(content.trim(), { pad: 'line' })
     const padSpace = parseComponent(content.trim(), { pad: 'space' })
 
-    expect(padDefault.template.content).toBe(Array(1).join('\n') + `
-        <div></div>
-      `)
-    expect(padDefault.script.content).toBe(Array(3 + 1).join('//\n') + `
-        export default {}
-      `)
-    expect(padDefault.styles[0].content).toBe(Array(6 + 1).join('\n') + `
-        h1 { color: red }
-      `)
-    expect(padLine.template.content).toBe(Array(1).join('\n') + `
-        <div></div>
-      `)
-    expect(padLine.script.content).toBe(Array(3 + 1).join('//\n') + `
-        export default {}
-      `)
-    expect(padLine.styles[0].content).toBe(Array(6 + 1).join('\n') + `
-        h1 { color: red }
-      `)
-    expect(padSpace.template.content).toBe(`<template>`.replace(/./g, ' ') + `
-        <div></div>
-      `)
+    expect(padDefault.script.content).toBe(Array(3 + 1).join('//\n') + '\nexport default {}\n')
+    expect(padDefault.styles[0].content).toBe(Array(6 + 1).join('\n') + '\nh1 { color: red }\n')
+    expect(padLine.script.content).toBe(Array(3 + 1).join('//\n') + '\nexport default {}\n')
+    expect(padLine.styles[0].content).toBe(Array(6 + 1).join('\n') + '\nh1 { color: red }\n')
     expect(padSpace.script.content).toBe(`<template>
         <div></div>
       </template>
-      <script>`.replace(/./g, ' ') + `
-        export default {}
-      `)
+      <script>`.replace(/./g, ' ') + '\nexport default {}\n')
     expect(padSpace.styles[0].content).toBe(`<template>
         <div></div>
       </template>
       <script>
         export default {}
       </script>
-      <style>`.replace(/./g, ' ') + `
-        h1 { color: red }
-      `)
+      <style>`.replace(/./g, ' ') + '\nh1 { color: red }\n')
   })
 
   it('should handle template blocks with lang as special text', () => {

From 0d4b35f55975946cb0eb4f7f5f35efe3d078473e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 9 Dec 2018 16:21:22 -0500
Subject: [PATCH 618/911] fix(vdom): remove unnecessary sameVnode condition

fix #9168
---
 src/core/vdom/patch.js | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 7e58bced6ac..9746bb794f8 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -32,12 +32,6 @@ export const emptyNode = new VNode('', {}, [])
 
 const hooks = ['create', 'activate', 'update', 'remove', 'destroy']
 
-function childrenIgnored (vnode) {
-  return vnode && vnode.data && vnode.data.domProps && (
-    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-  )
-}
-
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -45,7 +39,6 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
-        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&

From c38a81b84a52351e8220a56f5828894b422ec816 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 9 Dec 2018 16:25:36 -0500
Subject: [PATCH 619/911] build: build 2.5.19

---
 dist/vue.common.js                          | 11 ++---------
 dist/vue.esm.js                             | 11 ++---------
 dist/vue.js                                 | 11 ++---------
 dist/vue.min.js                             |  4 ++--
 dist/vue.runtime.common.js                  | 11 ++---------
 dist/vue.runtime.esm.js                     | 11 ++---------
 dist/vue.runtime.js                         | 11 ++---------
 dist/vue.runtime.min.js                     |  4 ++--
 packages/vue-server-renderer/basic.js       |  2 +-
 packages/vue-server-renderer/build.js       |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   |  8 ++------
 packages/vue-template-compiler/build.js     |  8 ++------
 packages/vue-template-compiler/package.json |  2 +-
 14 files changed, 24 insertions(+), 74 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 3c2a9b3344a..19c407c564e 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5188,7 +5188,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18';
+Vue.version = '2.5.19';
 
 /*  */
 
@@ -5541,12 +5541,6 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
-function childrenIgnored (vnode) {
-  return vnode && vnode.data && vnode.data.domProps && (
-    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-  )
-}
-
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5554,7 +5548,6 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
-        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index f0cb2809246..4df942ca4a4 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5186,7 +5186,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18';
+Vue.version = '2.5.19';
 
 /*  */
 
@@ -5539,12 +5539,6 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
-function childrenIgnored (vnode) {
-  return vnode && vnode.data && vnode.data.domProps && (
-    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-  )
-}
-
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5552,7 +5546,6 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
-        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
diff --git a/dist/vue.js b/dist/vue.js
index 10701a46209..68bf0841b60 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5170,7 +5170,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.18';
+  Vue.version = '2.5.19';
 
   /*  */
 
@@ -5523,12 +5523,6 @@
 
   var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
-  function childrenIgnored (vnode) {
-    return vnode && vnode.data && vnode.data.domProps && (
-      vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-    )
-  }
-
   function sameVnode (a, b) {
     return (
       a.key === b.key && (
@@ -5536,7 +5530,6 @@
           a.tag === b.tag &&
           a.isComment === b.isComment &&
           isDef(a.data) === isDef(b.data) &&
-          !childrenIgnored(a) && !childrenIgnored(b) &&
           sameInputType(a, b)
         ) || (
           isTrue(a.isAsyncPlaceholder) &&
diff --git a/dist/vue.min.js b/dist/vue.min.js
index cb280625c07..008f12332a2 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function v(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(e,t){return h.call(e,t)}function y(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var g=/-(\w)/g,_=y(function(e){return e.replace(g,function(e,t){return t?t.toUpperCase():""})}),b=y(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),$=/\B([A-Z])/g,w=y(function(e){return e.replace($,"-$1").toLowerCase()});var C=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function x(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function A(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function O(e,t,n){}var S=function(e,t,n){return!1},T=function(e){return e};function N(e,t){if(e===t)return!0;var 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index b831bfefc83..51c326fe78f 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5179,7 +5179,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18';
+Vue.version = '2.5.19';
 
 /*  */
 
@@ -5530,12 +5530,6 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
-function childrenIgnored (vnode) {
-  return vnode && vnode.data && vnode.data.domProps && (
-    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-  )
-}
-
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5543,7 +5537,6 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
-        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 853bb64b97b..4848cef6d60 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5177,7 +5177,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.18';
+Vue.version = '2.5.19';
 
 /*  */
 
@@ -5528,12 +5528,6 @@ var emptyNode = new VNode('', {}, []);
 
 var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
-function childrenIgnored (vnode) {
-  return vnode && vnode.data && vnode.data.domProps && (
-    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-  )
-}
-
 function sameVnode (a, b) {
   return (
     a.key === b.key && (
@@ -5541,7 +5535,6 @@ function sameVnode (a, b) {
         a.tag === b.tag &&
         a.isComment === b.isComment &&
         isDef(a.data) === isDef(b.data) &&
-        !childrenIgnored(a) && !childrenIgnored(b) &&
         sameInputType(a, b)
       ) || (
         isTrue(a.isAsyncPlaceholder) &&
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 7c65acc7d2e..93baa455bf0 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5161,7 +5161,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.18';
+  Vue.version = '2.5.19';
 
   /*  */
 
@@ -5512,12 +5512,6 @@
 
   var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
 
-  function childrenIgnored (vnode) {
-    return vnode && vnode.data && vnode.data.domProps && (
-      vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-    )
-  }
-
   function sameVnode (a, b) {
     return (
       a.key === b.key && (
@@ -5525,7 +5519,6 @@
           a.tag === b.tag &&
           a.isComment === b.isComment &&
           isDef(a.data) === isDef(b.data) &&
-          !childrenIgnored(a) && !childrenIgnored(b) &&
           sameInputType(a, b)
         ) || (
           isTrue(a.isAsyncPlaceholder) &&
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 8eedd8ed574..55c9866d709 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.18
+ * Vue.js v2.5.19
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
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e,r,o=t.data;if(n(o))for(n(e=o.hook)&&n(e=e.destroy)&&e(t),e=0;e<s.destroy.length;++e)s.destroy[e](t);if(n(e=t.children))for(r=0;r<t.children.length;++r)b(t.children[r])}function C(t,e,r,o){for(;r<=o;++r){var i=e[r];n(i)&&(n(i.tag)?(w(i),b(i)):l(i.elm))}}function w(t,e){if(n(e)||n(t.data)){var r,o=s.remove.length+1;for(n(e)?e.listeners+=o:e=function(t,e){function n(){0==--n.listeners&&l(t)}return n.listeners=e,n}(t.elm,o),n(r=t.componentInstance)&&n(r=r._vnode)&&n(r.data)&&w(r,e),r=0;r<s.remove.length;++r)s.remove[r](t,e);n(r=t.data.hook)&&n(r=r.remove)?r(t,e):e()}else l(t.elm)}function A(t,e,r,o){for(var i=r;i<o;i++){var a=e[i];if(n(a)&&Un(t,a))return i}}function $(t,o,i,a,c,l){if(t!==o){n(o.elm)&&n(a)&&(o=a[c]=pt(o));var f=o.elm=t.elm;if(r(t.isAsyncPlaceholder))n(o.asyncFactory.resolved)?k(t.elm,o,i):o.isAsyncPlaceholder=!0;else if(r(o.isStatic)&&r(t.isStatic)&&o.key===t.key&&(r(o.isCloned)||r(o.isOnce)))o.componentInstance=t.componentInstance;else{var d,v=o.data;n(v)&&n(d=v.hook)&&n(d=d.prepatch)&&d(t,o);var h=t.children,y=o.children;if(n(v)&&m(o)){for(d=0;d<s.update.length;++d)s.update[d](t,o);n(d=v.hook)&&n(d=d.update)&&d(t,o)}e(o.text)?n(h)&&n(y)?h!==y&&function(t,r,o,i,a){for(var s,c,l,f=0,d=0,v=r.length-1,h=r[0],m=r[v],y=o.length-1,g=o[0],b=o[y],w=!a;f<=v&&d<=y;)e(h)?h=r[++f]:e(m)?m=r[--v]:Un(h,g)?($(h,g,i,o,d),h=r[++f],g=o[++d]):Un(m,b)?($(m,b,i,o,y),m=r[--v],b=o[--y]):Un(h,b)?($(h,b,i,o,y),w&&u.insertBefore(t,h.elm,u.nextSibling(m.elm)),h=r[++f],b=o[--y]):Un(m,g)?($(m,g,i,o,d),w&&u.insertBefore(t,m.elm,h.elm),m=r[--v],g=o[++d]):(e(s)&&(s=Vn(r,f,v)),e(c=n(g.key)?s[g.key]:A(g,r,f,v))?p(g,i,t,h.elm,!1,o,d):Un(l=r[c],g)?($(l,g,i,o,d),r[c]=void 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l=!0,f=t.firstChild,p=0;p<u.length;p++){if(!f||!k(f,u[p],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Gt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,f=[];if(e(t))l=!0,p(o,f);else{var d=n(t.nodeType);if(!d&&Un(t,o))$(t,o,f,null,null,a);else{if(d){if(1===t.nodeType&&t.hasAttribute(T)&&(t.removeAttribute(T),i=!0),r(i)&&k(t,o,f))return x(o,f,!0),t;c=t,t=new ct(u.tagName(c).toLowerCase(),{},[],void 0,c)}var v=t.elm,h=u.parentNode(v);if(p(o,f,v._leaveCb?null:h,u.nextSibling(v)),n(o.parent))for(var y=o.parent,g=m(o);y;){for(var _=0;_<s.destroy.length;++_)s.destroy[_](y);if(y.elm=o.elm,g){for(var w=0;w<s.create.length;++w)s.create[w](Fn,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else Mn(y);y=y.parent}n(h)?C(0,[t],0,0):n(t.tag)&&b(t)}}return x(o,f,l),o.elm}n(t)&&b(t)}}({nodeOps:Pn,modules:[Qn,er,cr,fr,wr,U?{create:Xr,activate:Xr,remove:function(t,e){!0!==t.data.show?Wr(t,e):e()}}:{}].concat(Xn)});W&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&ro(t,"input")});var Jr={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?te(n,"postpatch",function(){Jr.componentUpdated(t,e,n)}):Zr(t,e,n.context),t._vOptions=[].map.call(t.options,to)):("textarea"===n.tag||Nn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",eo),t.addEventListener("compositionend",no),t.addEventListener("change",no),W&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Zr(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,to);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return Yr(t,o)}):e.value!==e.oldValue&&Yr(e.value,o))&&ro(t,"change")}}};function Zr(t,e,n){Qr(t,e,n),(z||q)&&setTimeout(function(){Qr(t,e,n)},0)}function Qr(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=E(r,to(a))>-1,a.selected!==i&&(a.selected=i);else if(j(to(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function Yr(t,e){return e.every(function(e){return!j(e,t)})}function to(t){return"_value"in t?t._value:t.value}function eo(t){t.target.composing=!0}function no(t){t.target.composing&&(t.target.composing=!1,ro(t.target,"input"))}function ro(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function oo(t){return!t.componentInstance||t.data&&t.data.transition?t:oo(t.componentInstance._vnode)}var io={model:Jr,show:{bind:function(t,e,n){var r=e.value,o=(n=oo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,zr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=oo(n)).data&&n.data.transition?(n.data.show=!0,r?zr(n,function(){t.style.display=t.__vOriginalDisplay}):Wr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},ao={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function so(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?so(ae(e.children)):t}function co(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[g(i)]=o[i];return e}function uo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var lo=function(t){return t.tag||ie(t)},fo=function(t){return"show"===t.name},po={name:"transition",props:ao,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(lo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=so(i);if(!a)return i;if(this._leaving)return uo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=co(this),u=this._vnode,l=so(u);if(a.data.directives&&a.data.directives.some(fo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!ie(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=$({},c);if("out-in"===r)return this._leaving=!0,te(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),uo(t,i);if("in-out"===r){if(ie(a))return u;var p,d=function(){p()};te(c,"afterEnter",d),te(c,"enterCancelled",d),te(f,"delayLeave",function(t){p=t})}}return i}}},vo=$({tag:String,moveClass:String},ao);function ho(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function mo(t){t.data.newPos=t.elm.getBoundingClientRect()}function yo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete vo.mode;var go={Transition:po,TransitionGroup:{props:vo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=he(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=co(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(ho),t.forEach(mo),t.forEach(yo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Mr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Tr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Tr,t),n._moveCb=null,Fr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Sr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){xr(n,t)}),$r(n,e),n.style.display="none",this.$el.appendChild(n);var r=Vr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return un.config.mustUseProp=function(t,e,n){return"value"===n&&gn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},un.config.isReservedTag=Tn,un.config.isReservedAttr=yn,un.config.getTagNamespace=function(t){return In(t)?"svg":"math"===t?"math":void 0},un.config.isUnknownElement=function(t){if(!U)return!0;if(Tn(t))return!1;if(t=t.toLowerCase(),null!=Dn[t])return Dn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Dn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Dn[t]=/HTMLUnknownElement/.test(e.toString())},$(un.options.directives,io),$(un.options.components,go),un.prototype.__patch__=U?Gr:O,un.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=lt),ge(t,"beforeMount"),r=function(){t._update(t._render(),n)},new ke(t,r,O,{before:function(){t._isMounted&&ge(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,ge(t,"mounted")),t}(this,t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},U&&setTimeout(function(){P.devtools&&Q&&Q.emit("init",un)},0),un});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 6acca21ea30..2b6e8f9473f 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -7906,7 +7906,7 @@
         for (var i = 0; i < dirs.length; i++) {
           var name = dirs[i].name;
           if (name !== 'show') {
-            var dirRenderer = resolveAsset(context, 'directives', name, true);
+            var dirRenderer = resolveAsset(context, 'directives', name);
             if (dirRenderer) {
               // directives mutate the node's data
               // which then gets rendered by modules
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index f3a39aae0c0..53fc7bd0872 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -7678,7 +7678,7 @@ function renderStartingTag (node, context) {
       for (var i = 0; i < dirs.length; i++) {
         var name = dirs[i].name;
         if (name !== 'show') {
-          var dirRenderer = resolveAsset(context, 'directives', name, true);
+          var dirRenderer = resolveAsset(context, 'directives', name);
           if (dirRenderer) {
             // directives mutate the node's data
             // which then gets rendered by modules
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index ee21262b3ef..4f808344993 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.18",
+  "version": "2.5.19",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 213b3e561ae..33c02e7d3f2 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -637,15 +637,11 @@
     function end (tag, start) {
       if (depth === 1 && currentBlock) {
         currentBlock.end = start;
-        var text = content.slice(currentBlock.start, currentBlock.end);
+        var text = deIndent(content.slice(currentBlock.start, currentBlock.end));
         // pad content so that linters and pre-processors can output correct
         // line numbers in errors and warnings
-        if (options.pad) {
+        if (currentBlock.type !== 'template' && options.pad) {
           text = padContent(currentBlock, options.pad) + text;
-        } else {
-          // avoid to deindent if pad option is specified
-          // to retain original source position.
-          text = deIndent(text);
         }
         currentBlock.content = text;
         currentBlock = null;
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 4ac67df997b..fe35b66e736 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -595,15 +595,11 @@ function parseComponent (
   function end (tag, start) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start;
-      var text = content.slice(currentBlock.start, currentBlock.end);
+      var text = deindent(content.slice(currentBlock.start, currentBlock.end));
       // pad content so that linters and pre-processors can output correct
       // line numbers in errors and warnings
-      if (options.pad) {
+      if (currentBlock.type !== 'template' && options.pad) {
         text = padContent(currentBlock, options.pad) + text;
-      } else {
-        // avoid to deindent if pad option is specified
-        // to retain original source position.
-        text = deindent(text);
       }
       currentBlock.content = text;
       currentBlock = null;
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 1f992d23f70..f74b16bb10b 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.18",
+  "version": "2.5.19",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 628c1b7f5b298e13975d880c73e8fc2893628c2e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 9 Dec 2018 16:26:02 -0500
Subject: [PATCH 620/911] build: release 2.5.19

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 4389f6bb3f0..f6e063f7ba7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.18",
+  "version": "2.5.19",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From e06d2af276fc8d626a3b048f4d138a243aa690a4 Mon Sep 17 00:00:00 2001
From: Herrington Darkholme
 <2883231+HerringtonDarkholme@users.noreply.github.com>
Date: Tue, 11 Dec 2018 00:53:57 +0800
Subject: [PATCH 621/911] fix(types): avoid `this` in VueConstructor signature
 (#9173)

https://github.com/vuejs/vue-class-component/issues/294#issuecomment-445526936
---
 types/test/tsconfig.json |  1 +
 types/test/vue-test.ts   | 11 +++++++++--
 types/vue.d.ts           |  6 +++---
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/types/test/tsconfig.json b/types/test/tsconfig.json
index 15809b5f786..b816ce07cdc 100644
--- a/types/test/tsconfig.json
+++ b/types/test/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "target": "es5",
+    "experimentalDecorators": true,
     "lib": [
       "dom",
       "es2015"
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index d9a8379a83f..40ded2d29ce 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -102,10 +102,10 @@ class Test extends Vue {
     this.compile("<div>{{ message }}</div>");
     this
       .use(() => {
-        
+
       })
       .use(() => {
-        
+
       })
       .mixin({})
       .mixin({});
@@ -193,3 +193,10 @@ Vue.extend({
     return h('canvas', {}, [a])
   }
 })
+
+declare function decorate<VC extends typeof Vue>(v: VC): VC;
+
+@decorate
+class Decorated extends Vue {
+  a = 123;
+}
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 349c3432908..2098a694dec 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -111,9 +111,9 @@ export interface VueConstructor<V extends Vue = Vue> {
   component<Props>(id: string, definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
   component(id: string, definition?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 
-  use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): this;
-  use(plugin: PluginObject<any> | PluginFunction<any>, ...options: any[]): this;
-  mixin(mixin: VueConstructor | ComponentOptions<Vue>): this;
+  use<T>(plugin: PluginObject<T> | PluginFunction<T>, options?: T): VueConstructor<V>;
+  use(plugin: PluginObject<any> | PluginFunction<any>, ...options: any[]): VueConstructor<V>;
+  mixin(mixin: VueConstructor | ComponentOptions<Vue>): VueConstructor<V>;
   compile(template: string): {
     render(createElement: typeof Vue.prototype.$createElement): VNode;
     staticRenderFns: (() => VNode)[];

From 952d3b4b218697b22f6f4bb42f859d15d1896e86 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 10 Dec 2018 11:57:01 -0500
Subject: [PATCH 622/911] build: build 2.5.20

---
 dist/vue.common.js                          | 4 ++--
 dist/vue.esm.js                             | 4 ++--
 dist/vue.js                                 | 4 ++--
 dist/vue.min.js                             | 4 ++--
 dist/vue.runtime.common.js                  | 4 ++--
 dist/vue.runtime.esm.js                     | 4 ++--
 dist/vue.runtime.js                         | 4 ++--
 dist/vue.runtime.min.js                     | 4 ++--
 packages/vue-server-renderer/package.json   | 2 +-
 packages/vue-template-compiler/package.json | 2 +-
 10 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 19c407c564e..2447b0dcd83 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5188,7 +5188,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.19';
+Vue.version = '2.5.20';
 
 /*  */
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 4df942ca4a4..0096cf2b23f 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5186,7 +5186,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.19';
+Vue.version = '2.5.20';
 
 /*  */
 
diff --git a/dist/vue.js b/dist/vue.js
index 68bf0841b60..1a48406be74 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5170,7 +5170,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.19';
+  Vue.version = '2.5.20';
 
   /*  */
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 008f12332a2..810baa78f7e 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 51c326fe78f..57d1ddea876 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5179,7 +5179,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.19';
+Vue.version = '2.5.20';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 4848cef6d60..9348380359f 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5177,7 +5177,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.19';
+Vue.version = '2.5.20';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 93baa455bf0..978d9bd6540 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -5161,7 +5161,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.19';
+  Vue.version = '2.5.20';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 55c9866d709..e8c5377a56f 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.19
+ * Vue.js v2.5.20
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
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0,w&&u.insertBefore(t,l.elm,h.elm)):p(g,i,t,h.elm,!1,o,d),g=o[++d]);f>v?_(t,e(o[y+1])?null:o[y+1].elm,o,d,y,i):d>y&&C(0,r,f,v)}(f,h,y,i,l):n(y)?(n(t.text)&&u.setTextContent(f,""),_(f,null,y,0,y.length-1,i)):n(h)?C(0,h,0,h.length-1):n(t.text)&&u.setTextContent(f,""):t.text!==o.text&&u.setTextContent(f,o.text),n(v)&&n(d=v.hook)&&n(d=d.postpatch)&&d(t,o)}}}function x(t,e,o){if(r(o)&&n(t.parent))t.parent.data.pendingInsert=e;else for(var i=0;i<e.length;++i)e[i].data.hook.insert(e[i])}var O=f("attrs,class,staticClass,staticStyle,key");function k(t,e,o,i){var a,s=e.tag,c=e.data,u=e.children;if(i=i||c&&c.pre,e.elm=t,r(e.isComment)&&n(e.asyncFactory))return e.isAsyncPlaceholder=!0,!0;if(n(c)&&(n(a=c.hook)&&n(a=a.init)&&a(e,!0),n(a=e.componentInstance)))return d(e,o),!0;if(n(s)){if(n(u))if(t.hasChildNodes())if(n(a=c)&&n(a=a.domProps)&&n(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var l=!0,f=t.firstChild,p=0;p<u.length;p++){if(!f||!k(f,u[p],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Gt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,f=[];if(e(t))l=!0,p(o,f);else{var d=n(t.nodeType);if(!d&&Un(t,o))$(t,o,f,null,null,a);else{if(d){if(1===t.nodeType&&t.hasAttribute(T)&&(t.removeAttribute(T),i=!0),r(i)&&k(t,o,f))return x(o,f,!0),t;c=t,t=new ct(u.tagName(c).toLowerCase(),{},[],void 0,c)}var v=t.elm,h=u.parentNode(v);if(p(o,f,v._leaveCb?null:h,u.nextSibling(v)),n(o.parent))for(var y=o.parent,g=m(o);y;){for(var _=0;_<s.destroy.length;++_)s.destroy[_](y);if(y.elm=o.elm,g){for(var w=0;w<s.create.length;++w)s.create[w](Fn,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else Mn(y);y=y.parent}n(h)?C(0,[t],0,0):n(t.tag)&&b(t)}}return x(o,f,l),o.elm}n(t)&&b(t)}}({nodeOps:Pn,modules:[Qn,er,cr,fr,wr,U?{create:Xr,activate:Xr,remove:function(t,e){!0!==t.data.show?Wr(t,e):e()}}:{}].concat(Xn)});W&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&ro(t,"input")});var Jr={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?te(n,"postpatch",function(){Jr.componentUpdated(t,e,n)}):Zr(t,e,n.context),t._vOptions=[].map.call(t.options,to)):("textarea"===n.tag||Nn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",eo),t.addEventListener("compositionend",no),t.addEventListener("change",no),W&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Zr(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,to);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return Yr(t,o)}):e.value!==e.oldValue&&Yr(e.value,o))&&ro(t,"change")}}};function Zr(t,e,n){Qr(t,e,n),(z||q)&&setTimeout(function(){Qr(t,e,n)},0)}function Qr(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=E(r,to(a))>-1,a.selected!==i&&(a.selected=i);else if(j(to(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function Yr(t,e){return e.every(function(e){return!j(e,t)})}function to(t){return"_value"in t?t._value:t.value}function eo(t){t.target.composing=!0}function no(t){t.target.composing&&(t.target.composing=!1,ro(t.target,"input"))}function ro(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function oo(t){return!t.componentInstance||t.data&&t.data.transition?t:oo(t.componentInstance._vnode)}var io={model:Jr,show:{bind:function(t,e,n){var r=e.value,o=(n=oo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,zr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=oo(n)).data&&n.data.transition?(n.data.show=!0,r?zr(n,function(){t.style.display=t.__vOriginalDisplay}):Wr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},ao={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function so(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?so(ae(e.children)):t}function co(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[g(i)]=o[i];return e}function uo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var lo=function(t){return t.tag||ie(t)},fo=function(t){return"show"===t.name},po={name:"transition",props:ao,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(lo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=so(i);if(!a)return i;if(this._leaving)return uo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=co(this),u=this._vnode,l=so(u);if(a.data.directives&&a.data.directives.some(fo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!ie(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=$({},c);if("out-in"===r)return this._leaving=!0,te(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),uo(t,i);if("in-out"===r){if(ie(a))return u;var p,d=function(){p()};te(c,"afterEnter",d),te(c,"enterCancelled",d),te(f,"delayLeave",function(t){p=t})}}return i}}},vo=$({tag:String,moveClass:String},ao);function ho(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function mo(t){t.data.newPos=t.elm.getBoundingClientRect()}function yo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete vo.mode;var go={Transition:po,TransitionGroup:{props:vo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=he(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=co(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(ho),t.forEach(mo),t.forEach(yo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Mr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Tr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Tr,t),n._moveCb=null,Fr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Sr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){xr(n,t)}),$r(n,e),n.style.display="none",this.$el.appendChild(n);var r=Vr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return un.config.mustUseProp=function(t,e,n){return"value"===n&&gn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},un.config.isReservedTag=Tn,un.config.isReservedAttr=yn,un.config.getTagNamespace=function(t){return In(t)?"svg":"math"===t?"math":void 0},un.config.isUnknownElement=function(t){if(!U)return!0;if(Tn(t))return!1;if(t=t.toLowerCase(),null!=Dn[t])return Dn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Dn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Dn[t]=/HTMLUnknownElement/.test(e.toString())},$(un.options.directives,io),$(un.options.components,go),un.prototype.__patch__=U?Gr:O,un.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=lt),ge(t,"beforeMount"),r=function(){t._update(t._render(),n)},new ke(t,r,O,{before:function(){t._isMounted&&ge(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,ge(t,"mounted")),t}(this,t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},U&&setTimeout(function(){P.devtools&&Q&&Q.emit("init",un)},0),un});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 4f808344993..04dd5d43fb7 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.19",
+  "version": "2.5.20",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index f74b16bb10b..d14d67275bf 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.19",
+  "version": "2.5.20",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 77d406b2a49b286fe6587305fabcf0796db19ab1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 10 Dec 2018 11:57:04 -0500
Subject: [PATCH 623/911] build: release 2.5.20

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index f6e063f7ba7..410d89c80cf 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.19",
+  "version": "2.5.20",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From d780dd2e2adcf71f40c086055a659a9a2b4a8282 Mon Sep 17 00:00:00 2001
From: Kael <kaelwd@gmail.com>
Date: Tue, 11 Dec 2018 10:36:41 +1100
Subject: [PATCH 624/911] fix(types): accept primatives and falsy values in
 createElement children (#9154)

fixes #8498
---
 types/test/options-test.ts | 22 ++++++++++++++++++++--
 types/vnode.d.ts           | 13 +++++++++----
 2 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index ec06f9b8252..b1ecf065dc4 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -281,6 +281,12 @@ Vue.component('provide-function', {
   })
 })
 
+Vue.component('component-with-slot', {
+  render (h): VNode {
+    return h('div', this.$slots.default)
+  }
+})
+
 Vue.component('component-with-scoped-slot', {
   render (h) {
     interface ScopedSlotProps {
@@ -301,6 +307,12 @@ Vue.component('component-with-scoped-slot', {
       h('child', {
         // Passing down all slots from parent
         scopedSlots: this.$scopedSlots
+      }),
+      h('child', {
+        // Passing down single slot from parent
+        scopedSlots: {
+          default: this.$scopedSlots.default
+        }
       })
     ])
   },
@@ -320,16 +332,22 @@ Vue.component('narrow-array-of-vnode-type', {
   render (h): VNode {
     const slot = this.$scopedSlots.default!({})
     if (typeof slot === 'string') {
+      // <template slot-scope="data">bare string</template>
       return h('span', slot)
     } else if (Array.isArray(slot)) {
+      // template with multiple children
       const first = slot[0]
-      if (!Array.isArray(first) && typeof first !== 'string') {
+      if (!Array.isArray(first) && typeof first !== 'string' && first) {
         return first
       } else {
         return h()
       }
-    } else {
+    } else if (slot) {
+      // <div slot-scope="data">bare VNode</div>
       return slot
+    } else {
+      // empty template, slot === undefined
+      return h()
     }
   }
 })
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index 6bc41352d02..b32f77926f0 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -1,9 +1,14 @@
 import { Vue } from "./vue";
 
-export type ScopedSlot = (props: any) => VNodeChildrenArrayContents | VNode | string;
+// Scoped slots can technically return anything if used from
+// a render function, but this is "good enough" for templates
+export type ScopedSlot = (props: any) => ScopedSlotChildren;
+export type ScopedSlotChildren = ScopedSlotArrayContents | VNode | string | undefined;
+export interface ScopedSlotArrayContents extends Array<ScopedSlotChildren> {}
 
-export type VNodeChildren = VNodeChildrenArrayContents | [ScopedSlot] | string;
-export interface VNodeChildrenArrayContents extends Array<VNode | string | VNodeChildrenArrayContents> {}
+// Relaxed type compatible with $createElement
+export type VNodeChildren = VNodeChildrenArrayContents | [ScopedSlot] | string | boolean | null | undefined;
+export interface VNodeChildrenArrayContents extends Array<VNodeChildren | VNode> {}
 
 export interface VNode {
   tag?: string;
@@ -27,7 +32,7 @@ export interface VNodeComponentOptions {
   Ctor: typeof Vue;
   propsData?: object;
   listeners?: object;
-  children?: VNodeChildren;
+  children?: VNode[];
   tag?: string;
 }
 

From 3d449376d557c4533a9664f95df3a168ecee9bfa Mon Sep 17 00:00:00 2001
From: Andrew Hyndman <43152655+andrew-humu@users.noreply.github.com>
Date: Tue, 11 Dec 2018 07:27:43 -0800
Subject: [PATCH 625/911] fix(v-model): properly handle multiline v-model
 expressions (#9184)

fix #9183
---
 src/compiler/directives/model.js           |  2 +-
 test/unit/modules/compiler/codegen.spec.js | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/compiler/directives/model.js b/src/compiler/directives/model.js
index 39bdbfda4c2..c7a4c09b574 100644
--- a/src/compiler/directives/model.js
+++ b/src/compiler/directives/model.js
@@ -25,7 +25,7 @@ export function genComponentModel (
 
   el.model = {
     value: `(${value})`,
-    expression: `"${value}"`,
+    expression: JSON.stringify(value),
     callback: `function (${baseValueExpression}) {${assignment}}`
   }
 }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 8525e42421c..e7eedec98f6 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -151,6 +151,27 @@ describe('codegen', () => {
     )
   })
 
+  it('generate v-model directive', () => {
+    assertCodegen(
+      '<input v-model="test">',
+      `with(this){return _c('input',{directives:[{name:"model",rawName:"v-model",value:(test),expression:"test"}],domProps:{"value":(test)},on:{"input":function($event){if($event.target.composing)return;test=$event.target.value}}})}`
+    )
+  })
+
+  it('generate multiline v-model directive', () => {
+    assertCodegen(
+      '<input v-model="\n test \n">',
+      `with(this){return _c('input',{directives:[{name:"model",rawName:"v-model",value:(\n test \n),expression:"\\n test \\n"}],domProps:{"value":(\n test \n)},on:{"input":function($event){if($event.target.composing)return;\n test \n=$event.target.value}}})}`
+    )
+  })
+
+  it('generate multiline v-model directive on custom component', () => {
+    assertCodegen(
+      '<my-component v-model="\n test \n" />',
+      `with(this){return _c('my-component',{model:{value:(\n test \n),callback:function ($$v) {\n test \n=$$v},expression:"\\n test \\n"}})}`
+    )
+  })
+
   it('generate template tag', () => {
     assertCodegen(
       '<div><template><p>{{hello}}</p></template></div>',

From 8fccd8256902b6199ac124017f70d75abb45ed27 Mon Sep 17 00:00:00 2001
From: NaotoSuzuki <suzuki.z2o.naoto@gmail.com>
Date: Wed, 12 Dec 2018 01:28:40 +0900
Subject: [PATCH 626/911] chore: fix tag name in compiler/parser/index.js
 (#9165)

---
 src/compiler/parser/index.js              | 2 +-
 test/unit/modules/compiler/parser.spec.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 56c996e8fd1..9428cf75e3b 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -340,7 +340,7 @@ function processKey (el) {
         const parent = el.parent
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn(
-            `Do not use v-for index as key on <transtion-group> children, ` +
+            `Do not use v-for index as key on <transition-group> children, ` +
             `this is the same as not using keys.`
           )
         }
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 07d6148225c..efa5daf4eb3 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -250,7 +250,7 @@ describe('parser', () => {
         </transition-group>
       </div>
     `, baseOptions)
-    expect('Do not use v-for index as key on <transtion-group> children').toHaveBeenWarned()
+    expect('Do not use v-for index as key on <transition-group> children').toHaveBeenWarned()
   })
 
   it('v-pre directive', () => {

From d8285c57a613c42eddf2d4f2b75c1cea6aa4703a Mon Sep 17 00:00:00 2001
From: Zhenfei You <hello@imyzf.com>
Date: Wed, 12 Dec 2018 00:29:49 +0800
Subject: [PATCH 627/911] fix(weex): support data class type that is string
 (#9139)

close #9124
---
 src/platforms/weex/runtime/modules/class.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/platforms/weex/runtime/modules/class.js b/src/platforms/weex/runtime/modules/class.js
index 47620552346..0a07bb3b56d 100755
--- a/src/platforms/weex/runtime/modules/class.js
+++ b/src/platforms/weex/runtime/modules/class.js
@@ -44,6 +44,8 @@ function makeClassList (data: VNodeData): Array<string> {
     classList.push.apply(classList, dataClass)
   } else if (isObject(dataClass)) {
     classList.push.apply(classList, Object.keys(dataClass).filter(className => dataClass[className]))
+  } else if (typeof dataClass === 'string') {
+    classList.push.apply(classList, dataClass.trim().split(/\s+/))
   }
   return classList
 }

From 87bad80f0cb9a30b95d9410120ff6e3e2022a723 Mon Sep 17 00:00:00 2001
From: Matteo Fogli <pecus@pecus.it>
Date: Tue, 11 Dec 2018 17:31:27 +0100
Subject: [PATCH 628/911] fix(lifecycle): beforeUpdated should not be called if
 component is destroyed (#9171)

fix #8076
---
 src/core/instance/lifecycle.js               |  2 +-
 test/unit/features/options/lifecycle.spec.js | 37 ++++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 8d687b15725..d0b871be288 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -196,7 +196,7 @@ export function mountComponent (
   // component's mounted hook), which relies on vm._watcher being already defined
   new Watcher(vm, updateComponent, noop, {
     before () {
-      if (vm._isMounted) {
+      if (vm._isMounted && !vm._isDestroyed) {
         callHook(vm, 'beforeUpdate')
       }
     }
diff --git a/test/unit/features/options/lifecycle.spec.js b/test/unit/features/options/lifecycle.spec.js
index ccc9d2106de..6f48ba06368 100644
--- a/test/unit/features/options/lifecycle.spec.js
+++ b/test/unit/features/options/lifecycle.spec.js
@@ -152,6 +152,43 @@ describe('Options lifecycle hooks', () => {
         expect(vm.$el.textContent).toBe('bar!')
       }).then(done)
     })
+
+    // #8076
+    it('should not be called after destroy', done => {
+      const beforeUpdate = jasmine.createSpy('beforeUpdate')
+      const destroyed = jasmine.createSpy('destroyed')
+
+      Vue.component('todo', {
+        template: '<div>{{todo.done}}</div>',
+        props: ['todo'],
+        destroyed,
+        beforeUpdate
+      })
+
+      const vm = new Vue({
+        template: `
+          <div>
+            <todo v-for="t in pendingTodos" :todo="t" :key="t.id"></todo>
+          </div>
+        `,
+        data () {
+          return {
+            todos: [{ id: 1, done: false }]
+          }
+        },
+        computed: {
+          pendingTodos () {
+            return this.todos.filter(t => !t.done)
+          }
+        }
+      }).$mount()
+
+      vm.todos[0].done = true
+      waitForUpdate(() => {
+        expect(destroyed).toHaveBeenCalled()
+        expect(beforeUpdate).not.toHaveBeenCalled()
+      }).then(done)
+    })
   })
 
   describe('updated', () => {

From 6980035a86cfb79368af77a5040e468177d6b14a Mon Sep 17 00:00:00 2001
From: Fumio Nonaka <fumio@mx10.ttcn.ne.jp>
Date: Wed, 12 Dec 2018 01:35:21 +0900
Subject: [PATCH 629/911] chore: use keypress in TodoMVC example for IME input
 methods (#9172)

---
 examples/todomvc/index.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/todomvc/index.html b/examples/todomvc/index.html
index edf28d84728..5a979c61a48 100644
--- a/examples/todomvc/index.html
+++ b/examples/todomvc/index.html
@@ -15,7 +15,7 @@ <h1>todos</h1>
           autofocus autocomplete="off"
           placeholder="What needs to be done?"
           v-model="newTodo"
-          @keyup.enter="addTodo">
+          @keypress.enter="addTodo">
       </header>
       <section class="main" v-show="todos.length" v-cloak>
         <input class="toggle-all" type="checkbox" v-model="allDone">
@@ -33,7 +33,7 @@ <h1>todos</h1>
               v-model="todo.title"
               v-todo-focus="todo == editedTodo"
               @blur="doneEdit(todo)"
-              @keyup.enter="doneEdit(todo)"
+              @keypress.enter="doneEdit(todo)"
               @keyup.esc="cancelEdit(todo)">
           </li>
         </ul>

From 984393fed981c58ad79ed50424f023dcfa6829d0 Mon Sep 17 00:00:00 2001
From: krystal <krystalnumber@gmail.com>
Date: Wed, 12 Dec 2018 00:37:39 +0800
Subject: [PATCH 630/911] test: change model text's priority case (#9170)

---
 test/unit/features/directives/model-text.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index d9adfb9cbab..69e9851368a 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -238,7 +238,7 @@ describe('Directive v-model text', () => {
       template: '<input v-model="a" @input="onInput">',
       methods: {
         onInput (e) {
-          spy(e.target.value)
+          spy(this.a)
         }
       }
     }).$mount()

From 47487607fbb99339038cf84990ba341c25b5e20d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 11 Dec 2018 16:51:03 -0500
Subject: [PATCH 631/911] fix: fix v-for component with undefined value

fix #9181
---
 src/core/vdom/helpers/normalize-children.js |  3 +++
 test/unit/features/directives/for.spec.js   | 23 +++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/src/core/vdom/helpers/normalize-children.js b/src/core/vdom/helpers/normalize-children.js
index a4622ef44dc..4348e5dffa0 100644
--- a/src/core/vdom/helpers/normalize-children.js
+++ b/src/core/vdom/helpers/normalize-children.js
@@ -16,6 +16,9 @@ import { isFalse, isTrue, isDef, isUndef, isPrimitive } from 'shared/util'
 // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
 // because functional components already normalize their own children.
 export function simpleNormalizeChildren (children: any) {
+  if (!Array.isArray(children)) {
+    return
+  }
   for (let i = 0; i < children.length; i++) {
     if (Array.isArray(children[i])) {
       return Array.prototype.concat.apply([], children)
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index 445066284f9..db0470b57b3 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -484,6 +484,29 @@ describe('Directive v-for', () => {
     expect(vm.$el.textContent).toBe('12')
   })
 
+  // #9181
+  it('components with v-for and empty list', done => {
+    const vm = new Vue({
+      template:
+        '<div attr>' +
+          '<foo v-for="item in list">{{ item }}</foo>' +
+        '</div>',
+      data: {
+        list: undefined
+      },
+      components: {
+        foo: {
+          template: '<div><slot></slot></div>'
+        },
+      }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe('')
+    vm.list = [1, 2, 3]
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe('<div>1</div><div>2</div><div>3</div>')
+    }).then(done)
+  })
+
   const supportsDestructuring = (() => {
     try {
       new Function('var { foo } = bar')

From 4074104fac219e61e542f4da3a4800975a8063f2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 11 Dec 2018 16:51:40 -0500
Subject: [PATCH 632/911] perf: skip normalization on single child element
 v-for

---
 src/compiler/codegen/index.js              |  4 +++-
 test/unit/modules/compiler/codegen.spec.js | 14 +++++++-------
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 3416f773d8c..d353b6457b1 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -406,7 +406,9 @@ export function genChildren (
       el.tag !== 'template' &&
       el.tag !== 'slot'
     ) {
-      const normalizationType = checkSkip && state.maybeComponent(el) ? `,1` : ``
+      const normalizationType = checkSkip
+        ? state.maybeComponent(el) ? `,1` : `,0`
+        : ``
       return `${(altGenElement || genElement)(el, state)}${normalizationType}`
     }
     const normalizationType = checkSkip
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index e7eedec98f6..f2c47ed4b6b 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -54,25 +54,25 @@ describe('codegen', () => {
   it('generate v-for directive', () => {
     assertCodegen(
       '<div><li v-for="item in items" :key="item.uid"></li></div>',
-      `with(this){return _c('div',_l((items),function(item){return _c('li',{key:item.uid})}))}`
+      `with(this){return _c('div',_l((items),function(item){return _c('li',{key:item.uid})}),0)}`
     )
     // iterator syntax
     assertCodegen(
       '<div><li v-for="(item, i) in items"></li></div>',
-      `with(this){return _c('div',_l((items),function(item,i){return _c('li')}))}`
+      `with(this){return _c('div',_l((items),function(item,i){return _c('li')}),0)}`
     )
     assertCodegen(
       '<div><li v-for="(item, key, index) in items"></li></div>',
-      `with(this){return _c('div',_l((items),function(item,key,index){return _c('li')}))}`
+      `with(this){return _c('div',_l((items),function(item,key,index){return _c('li')}),0)}`
     )
     // destructuring
     assertCodegen(
       '<div><li v-for="{ a, b } in items"></li></div>',
-      `with(this){return _c('div',_l((items),function({ a, b }){return _c('li')}))}`
+      `with(this){return _c('div',_l((items),function({ a, b }){return _c('li')}),0)}`
     )
     assertCodegen(
       '<div><li v-for="({ a, b }, key, index) in items"></li></div>',
-      `with(this){return _c('div',_l((items),function({ a, b },key,index){return _c('li')}))}`
+      `with(this){return _c('div',_l((items),function({ a, b },key,index){return _c('li')}),0)}`
     )
     // v-for with extra element
     assertCodegen(
@@ -126,7 +126,7 @@ describe('codegen', () => {
   it('generate ref on v-for', () => {
     assertCodegen(
       '<ul><li v-for="item in items" ref="component1"></li></ul>',
-      `with(this){return _c('ul',_l((items),function(item){return _c('li',{ref:"component1",refInFor:true})}))}`
+      `with(this){return _c('ul',_l((items),function(item){return _c('li',{ref:"component1",refInFor:true})}),0)}`
     )
   })
 
@@ -597,7 +597,7 @@ describe('codegen', () => {
   it('generate static trees inside v-for', () => {
     assertCodegen(
       `<div><div v-for="i in 10"><p><span></span></p></div></div>`,
-      `with(this){return _c('div',_l((10),function(i){return _c('div',[_m(0,true)])}))}`,
+      `with(this){return _c('div',_l((10),function(i){return _c('div',[_m(0,true)])}),0)}`,
       [`with(this){return _c('p',[_c('span')])}`]
     )
   })

From 80fb6b8da144bd9c2313702e23a35d72fa620135 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 11 Dec 2018 16:58:18 -0500
Subject: [PATCH 633/911] revert: "chore: use keypress in TodoMVC example for
 IME input methods (#9172)"

This reverts commit 6980035a86cfb79368af77a5040e468177d6b14a.
---
 examples/todomvc/index.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/todomvc/index.html b/examples/todomvc/index.html
index 5a979c61a48..edf28d84728 100644
--- a/examples/todomvc/index.html
+++ b/examples/todomvc/index.html
@@ -15,7 +15,7 @@ <h1>todos</h1>
           autofocus autocomplete="off"
           placeholder="What needs to be done?"
           v-model="newTodo"
-          @keypress.enter="addTodo">
+          @keyup.enter="addTodo">
       </header>
       <section class="main" v-show="todos.length" v-cloak>
         <input class="toggle-all" type="checkbox" v-model="allDone">
@@ -33,7 +33,7 @@ <h1>todos</h1>
               v-model="todo.title"
               v-todo-focus="todo == editedTodo"
               @blur="doneEdit(todo)"
-              @keypress.enter="doneEdit(todo)"
+              @keyup.enter="doneEdit(todo)"
               @keyup.esc="cancelEdit(todo)">
           </li>
         </ul>

From 4e975485a4d90fef62bf73a32a2b72e249919130 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 11 Dec 2018 17:44:25 -0500
Subject: [PATCH 634/911] test: use mocks for commits e2e test

---
 examples/commits/app.js     |  23 +-
 examples/commits/index.html |   1 +
 examples/commits/mock.js    | 575 ++++++++++++++++++++++++++++++++++++
 3 files changed, 592 insertions(+), 7 deletions(-)
 create mode 100644 examples/commits/mock.js

diff --git a/examples/commits/app.js b/examples/commits/app.js
index 029d660a538..fbbd0d53034 100644
--- a/examples/commits/app.js
+++ b/examples/commits/app.js
@@ -1,10 +1,12 @@
+/* global Vue */
+
 var apiURL = 'https://api.github.com/repos/vuejs/vue/commits?per_page=3&sha='
 
 /**
  * Actual demo
  */
 
-var demo = new Vue({
+new Vue({
 
   el: '#demo',
 
@@ -34,14 +36,21 @@ var demo = new Vue({
 
   methods: {
     fetchData: function () {
-      var xhr = new XMLHttpRequest()
       var self = this
-      xhr.open('GET', apiURL + self.currentBranch)
-      xhr.onload = function () {
-        self.commits = JSON.parse(xhr.responseText)
-        console.log(self.commits[0].html_url)
+      if (navigator.userAgent.indexOf('PhantomJS') > -1) {
+        // use mocks in e2e to avoid dependency on network / authentication
+        setTimeout(function () {
+          self.commits = window.MOCKS[self.currentBranch]
+        }, 0)
+      } else {
+        var xhr = new XMLHttpRequest()
+        xhr.open('GET', apiURL + self.currentBranch)
+        xhr.onload = function () {
+          self.commits = JSON.parse(xhr.responseText)
+          console.log(self.commits[0].html_url)
+        }
+        xhr.send()
       }
-      xhr.send()
     }
   }
 })
diff --git a/examples/commits/index.html b/examples/commits/index.html
index 0b355a28748..c1e2e325db6 100644
--- a/examples/commits/index.html
+++ b/examples/commits/index.html
@@ -42,6 +42,7 @@ <h1>Latest Vue.js Commits</h1>
         </li>
       </ul>
     </div>
+    <script src="mock.js"></script>
     <script src="app.js"></script>
   </body>
 </html>
diff --git a/examples/commits/mock.js b/examples/commits/mock.js
new file mode 100644
index 00000000000..0e22a088686
--- /dev/null
+++ b/examples/commits/mock.js
@@ -0,0 +1,575 @@
+window.MOCKS = {
+  master: [
+    {
+      sha: "0948d999f2fddf9f90991956493f976273c5da1f",
+      node_id:
+        "MDY6Q29tbWl0MTE3MzAzNDI6MDk0OGQ5OTlmMmZkZGY5ZjkwOTkxOTU2NDkzZjk3NjI3M2M1ZGExZg==",
+      commit: {
+        author: {
+          name: "Evan You",
+          email: "yyx990803@gmail.com",
+          date: "2017-10-13T03:07:14Z"
+        },
+        committer: {
+          name: "Evan You",
+          email: "yyx990803@gmail.com",
+          date: "2017-10-13T03:07:14Z"
+        },
+        message: "build: release 2.5.0",
+        tree: {
+          sha: "7846816b875eb664ddf718fad04a720efeac72d0",
+          url:
+            "https://api.github.com/repos/vuejs/vue/git/trees/7846816b875eb664ddf718fad04a720efeac72d0"
+        },
+        url:
+          "https://api.github.com/repos/vuejs/vue/git/commits/0948d999f2fddf9f90991956493f976273c5da1f",
+        comment_count: 0,
+        verification: {
+          verified: false,
+          reason: "unsigned",
+          signature: null,
+          payload: null
+        }
+      },
+      url:
+        "https://api.github.com/repos/vuejs/vue/commits/0948d999f2fddf9f90991956493f976273c5da1f",
+      html_url:
+        "https://github.com/vuejs/vue/commit/0948d999f2fddf9f90991956493f976273c5da1f",
+      comments_url:
+        "https://api.github.com/repos/vuejs/vue/commits/0948d999f2fddf9f90991956493f976273c5da1f/comments",
+      author: {
+        login: "yyx990803",
+        id: 499550,
+        node_id: "MDQ6VXNlcjQ5OTU1MA==",
+        avatar_url: "https://avatars1.githubusercontent.com/u/499550?v=4",
+        gravatar_id: "",
+        url: "https://api.github.com/users/yyx990803",
+        html_url: "https://github.com/yyx990803",
+        followers_url: "https://api.github.com/users/yyx990803/followers",
+        following_url:
+          "https://api.github.com/users/yyx990803/following{/other_user}",
+        gists_url: "https://api.github.com/users/yyx990803/gists{/gist_id}",
+        starred_url:
+          "https://api.github.com/users/yyx990803/starred{/owner}{/repo}",
+        subscriptions_url:
+          "https://api.github.com/users/yyx990803/subscriptions",
+        organizations_url: "https://api.github.com/users/yyx990803/orgs",
+        repos_url: "https://api.github.com/users/yyx990803/repos",
+        events_url: "https://api.github.com/users/yyx990803/events{/privacy}",
+        received_events_url:
+          "https://api.github.com/users/yyx990803/received_events",
+        type: "User",
+        site_admin: false
+      },
+      committer: {
+        login: "yyx990803",
+        id: 499550,
+        node_id: "MDQ6VXNlcjQ5OTU1MA==",
+        avatar_url: "https://avatars1.githubusercontent.com/u/499550?v=4",
+        gravatar_id: "",
+        url: "https://api.github.com/users/yyx990803",
+        html_url: "https://github.com/yyx990803",
+        followers_url: "https://api.github.com/users/yyx990803/followers",
+        following_url:
+          "https://api.github.com/users/yyx990803/following{/other_user}",
+        gists_url: "https://api.github.com/users/yyx990803/gists{/gist_id}",
+        starred_url:
+          "https://api.github.com/users/yyx990803/starred{/owner}{/repo}",
+        subscriptions_url:
+          "https://api.github.com/users/yyx990803/subscriptions",
+        organizations_url: "https://api.github.com/users/yyx990803/orgs",
+        repos_url: "https://api.github.com/users/yyx990803/repos",
+        events_url: "https://api.github.com/users/yyx990803/events{/privacy}",
+        received_events_url:
+          "https://api.github.com/users/yyx990803/received_events",
+        type: "User",
+        site_admin: false
+      },
+      parents: [
+        {
+          sha: "bc2918f0e596d0e133a25606cbb66075402ce6c3",
+          url:
+            "https://api.github.com/repos/vuejs/vue/commits/bc2918f0e596d0e133a25606cbb66075402ce6c3",
+          html_url:
+            "https://github.com/vuejs/vue/commit/bc2918f0e596d0e133a25606cbb66075402ce6c3"
+        }
+      ]
+    },
+    {
+      sha: "bc2918f0e596d0e133a25606cbb66075402ce6c3",
+      node_id:
+        "MDY6Q29tbWl0MTE3MzAzNDI6YmMyOTE4ZjBlNTk2ZDBlMTMzYTI1NjA2Y2JiNjYwNzU0MDJjZTZjMw==",
+      commit: {
+        author: {
+          name: "Evan You",
+          email: "yyx990803@gmail.com",
+          date: "2017-10-13T03:04:35Z"
+        },
+        committer: {
+          name: "Evan You",
+          email: "yyx990803@gmail.com",
+          date: "2017-10-13T03:04:35Z"
+        },
+        message: "build: build 2.5.0",
+        tree: {
+          sha: "5c57af855d76df68ec0782a2d2f4cd0a54e80125",
+          url:
+            "https://api.github.com/repos/vuejs/vue/git/trees/5c57af855d76df68ec0782a2d2f4cd0a54e80125"
+        },
+        url:
+          "https://api.github.com/repos/vuejs/vue/git/commits/bc2918f0e596d0e133a25606cbb66075402ce6c3",
+        comment_count: 0,
+        verification: {
+          verified: false,
+          reason: "unsigned",
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From 847e493768371cec4718969e02bdb7f8463f4e03 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 11 Dec 2018 17:47:59 -0500
Subject: [PATCH 635/911] fix: fix single v-for child optimization

---
 .../instance/render-helpers/render-list.js    |  5 +++--
 src/core/vdom/helpers/normalize-children.js   |  3 ---
 test/unit/features/directives/for.spec.js     | 19 ++++++++++++++++++-
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/src/core/instance/render-helpers/render-list.js b/src/core/instance/render-helpers/render-list.js
index abe99db4d6d..040391c0f30 100644
--- a/src/core/instance/render-helpers/render-list.js
+++ b/src/core/instance/render-helpers/render-list.js
@@ -32,8 +32,9 @@ export function renderList (
       ret[i] = render(val[key], key, i)
     }
   }
-  if (isDef(ret)) {
-    (ret: any)._isVList = true
+  if (!isDef(ret)) {
+    ret = []
   }
+  (ret: any)._isVList = true
   return ret
 }
diff --git a/src/core/vdom/helpers/normalize-children.js b/src/core/vdom/helpers/normalize-children.js
index 4348e5dffa0..a4622ef44dc 100644
--- a/src/core/vdom/helpers/normalize-children.js
+++ b/src/core/vdom/helpers/normalize-children.js
@@ -16,9 +16,6 @@ import { isFalse, isTrue, isDef, isUndef, isPrimitive } from 'shared/util'
 // thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
 // because functional components already normalize their own children.
 export function simpleNormalizeChildren (children: any) {
-  if (!Array.isArray(children)) {
-    return
-  }
   for (let i = 0; i < children.length; i++) {
     if (Array.isArray(children[i])) {
       return Array.prototype.concat.apply([], children)
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index db0470b57b3..71b4b8ba459 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -489,7 +489,7 @@ describe('Directive v-for', () => {
     const vm = new Vue({
       template:
         '<div attr>' +
-          '<foo v-for="item in list">{{ item }}</foo>' +
+          '<foo v-for="item in list" :key="item">{{ item }}</foo>' +
         '</div>',
       data: {
         list: undefined
@@ -507,6 +507,23 @@ describe('Directive v-for', () => {
     }).then(done)
   })
 
+  it('elements with v-for and empty list', done => {
+    const vm = new Vue({
+      template:
+        '<div attr>' +
+          '<div v-for="item in list">{{ item }}</div>' +
+        '</div>',
+      data: {
+        list: undefined
+      }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe('')
+    vm.list = [1, 2, 3]
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toBe('<div>1</div><div>2</div><div>3</div>')
+    }).then(done)
+  })
+
   const supportsDestructuring = (() => {
     try {
       new Function('var { foo } = bar')

From b449e17eefd5543316291398677b57220cc951ba Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 11 Dec 2018 17:52:18 -0500
Subject: [PATCH 636/911] build: build 2.5.21

---
 dist/vue.common.js                          | 19 +++++++++++--------
 dist/vue.esm.js                             | 19 +++++++++++--------
 dist/vue.js                                 | 19 +++++++++++--------
 dist/vue.min.js                             |  4 ++--
 dist/vue.runtime.common.js                  | 11 ++++++-----
 dist/vue.runtime.esm.js                     | 11 ++++++-----
 dist/vue.runtime.js                         | 11 ++++++-----
 dist/vue.runtime.min.js                     |  4 ++--
 packages/vue-server-renderer/basic.js       | 13 ++++++++-----
 packages/vue-server-renderer/build.js       | 13 ++++++++-----
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   |  8 +++++---
 packages/vue-template-compiler/build.js     |  8 +++++---
 packages/vue-template-compiler/package.json |  2 +-
 14 files changed, 83 insertions(+), 61 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 2447b0dcd83..2fc5621920f 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2903,7 +2903,7 @@ function mountComponent (
   // component's mounted hook), which relies on vm._watcher being already defined
   new Watcher(vm, updateComponent, noop, {
     before: function before () {
-      if (vm._isMounted) {
+      if (vm._isMounted && !vm._isDestroyed) {
         callHook(vm, 'beforeUpdate');
       }
     }
@@ -3844,9 +3844,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -5188,7 +5189,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.20';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -6846,7 +6847,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -9467,7 +9468,7 @@ function processKey (el) {
         var parent = el.parent;
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn$2(
-            "Do not use v-for index as key on <transtion-group> children, " +
+            "Do not use v-for index as key on <transition-group> children, " +
             "this is the same as not using keys."
           );
         }
@@ -10584,7 +10585,9 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 0096cf2b23f..071176e41b8 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2901,7 +2901,7 @@ function mountComponent (
   // component's mounted hook), which relies on vm._watcher being already defined
   new Watcher(vm, updateComponent, noop, {
     before: function before () {
-      if (vm._isMounted) {
+      if (vm._isMounted && !vm._isDestroyed) {
         callHook(vm, 'beforeUpdate');
       }
     }
@@ -3842,9 +3842,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -5186,7 +5187,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.20';
+Vue.version = '2.5.21';
 
 /*  */
 
@@ -6844,7 +6845,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -9465,7 +9466,7 @@ function processKey (el) {
         var parent = el.parent;
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn$2(
-            "Do not use v-for index as key on <transtion-group> children, " +
+            "Do not use v-for index as key on <transition-group> children, " +
             "this is the same as not using keys."
           );
         }
@@ -10582,7 +10583,9 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
diff --git a/dist/vue.js b/dist/vue.js
index 1a48406be74..e36b5604a9d 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2899,7 +2899,7 @@
     // component's mounted hook), which relies on vm._watcher being already defined
     new Watcher(vm, updateComponent, noop, {
       before: function before () {
-        if (vm._isMounted) {
+        if (vm._isMounted && !vm._isDestroyed) {
           callHook(vm, 'beforeUpdate');
         }
       }
@@ -3833,9 +3833,10 @@
         ret[i] = render(val[key], key, i);
       }
     }
-    if (isDef(ret)) {
-      (ret)._isVList = true;
+    if (!isDef(ret)) {
+      ret = [];
     }
+    (ret)._isVList = true;
     return ret
   }
 
@@ -5170,7 +5171,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.20';
+  Vue.version = '2.5.21';
 
   /*  */
 
@@ -6826,7 +6827,7 @@
 
     el.model = {
       value: ("(" + value + ")"),
-      expression: ("\"" + value + "\""),
+      expression: JSON.stringify(value),
       callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
     };
   }
@@ -9441,7 +9442,7 @@
           var parent = el.parent;
           if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
             warn$2(
-              "Do not use v-for index as key on <transtion-group> children, " +
+              "Do not use v-for index as key on <transition-group> children, " +
               "this is the same as not using keys."
             );
           }
@@ -10553,7 +10554,9 @@
         el$1.tag !== 'template' &&
         el$1.tag !== 'slot'
       ) {
-        var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+        var normalizationType = checkSkip
+          ? state.maybeComponent(el$1) ? ",1" : ",0"
+          : "";
         return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
       }
       var normalizationType$1 = checkSkip
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 810baa78f7e..f2aff3ab950 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 57d1ddea876..a8358a1ebe3 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2894,7 +2894,7 @@ function mountComponent (
   // component's mounted hook), which relies on vm._watcher being already defined
   new Watcher(vm, updateComponent, noop, {
     before: function before () {
-      if (vm._isMounted) {
+      if (vm._isMounted && !vm._isDestroyed) {
         callHook(vm, 'beforeUpdate');
       }
     }
@@ -3835,9 +3835,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -5179,7 +5180,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.20';
+Vue.version = '2.5.21';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 9348380359f..20f2ef0cfc1 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2892,7 +2892,7 @@ function mountComponent (
   // component's mounted hook), which relies on vm._watcher being already defined
   new Watcher(vm, updateComponent, noop, {
     before: function before () {
-      if (vm._isMounted) {
+      if (vm._isMounted && !vm._isDestroyed) {
         callHook(vm, 'beforeUpdate');
       }
     }
@@ -3833,9 +3833,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
@@ -5177,7 +5178,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.20';
+Vue.version = '2.5.21';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 978d9bd6540..e67692e0e12 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
@@ -2890,7 +2890,7 @@
     // component's mounted hook), which relies on vm._watcher being already defined
     new Watcher(vm, updateComponent, noop, {
       before: function before () {
-        if (vm._isMounted) {
+        if (vm._isMounted && !vm._isDestroyed) {
           callHook(vm, 'beforeUpdate');
         }
       }
@@ -3824,9 +3824,10 @@
         ret[i] = render(val[key], key, i);
       }
     }
-    if (isDef(ret)) {
-      (ret)._isVList = true;
+    if (!isDef(ret)) {
+      ret = [];
     }
+    (ret)._isVList = true;
     return ret
   }
 
@@ -5161,7 +5162,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.20';
+  Vue.version = '2.5.21';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index e8c5377a56f..59b53bcb098 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.20
+ * Vue.js v2.5.21
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
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e,r,o=t.data;if(n(o))for(n(e=o.hook)&&n(e=e.destroy)&&e(t),e=0;e<s.destroy.length;++e)s.destroy[e](t);if(n(e=t.children))for(r=0;r<t.children.length;++r)b(t.children[r])}function C(t,e,r,o){for(;r<=o;++r){var i=e[r];n(i)&&(n(i.tag)?(w(i),b(i)):l(i.elm))}}function w(t,e){if(n(e)||n(t.data)){var r,o=s.remove.length+1;for(n(e)?e.listeners+=o:e=function(t,e){function n(){0==--n.listeners&&l(t)}return n.listeners=e,n}(t.elm,o),n(r=t.componentInstance)&&n(r=r._vnode)&&n(r.data)&&w(r,e),r=0;r<s.remove.length;++r)s.remove[r](t,e);n(r=t.data.hook)&&n(r=r.remove)?r(t,e):e()}else l(t.elm)}function A(t,e,r,o){for(var i=r;i<o;i++){var a=e[i];if(n(a)&&Un(t,a))return i}}function $(t,o,i,a,c,l){if(t!==o){n(o.elm)&&n(a)&&(o=a[c]=pt(o));var f=o.elm=t.elm;if(r(t.isAsyncPlaceholder))n(o.asyncFactory.resolved)?k(t.elm,o,i):o.isAsyncPlaceholder=!0;else if(r(o.isStatic)&&r(t.isStatic)&&o.key===t.key&&(r(o.isCloned)||r(o.isOnce)))o.componentInstance=t.componentInstance;else{var d,v=o.data;n(v)&&n(d=v.hook)&&n(d=d.prepatch)&&d(t,o);var h=t.children,y=o.children;if(n(v)&&m(o)){for(d=0;d<s.update.length;++d)s.update[d](t,o);n(d=v.hook)&&n(d=d.update)&&d(t,o)}e(o.text)?n(h)&&n(y)?h!==y&&function(t,r,o,i,a){for(var s,c,l,f=0,d=0,v=r.length-1,h=r[0],m=r[v],y=o.length-1,g=o[0],b=o[y],w=!a;f<=v&&d<=y;)e(h)?h=r[++f]:e(m)?m=r[--v]:Un(h,g)?($(h,g,i,o,d),h=r[++f],g=o[++d]):Un(m,b)?($(m,b,i,o,y),m=r[--v],b=o[--y]):Un(h,b)?($(h,b,i,o,y),w&&u.insertBefore(t,h.elm,u.nextSibling(m.elm)),h=r[++f],b=o[--y]):Un(m,g)?($(m,g,i,o,d),w&&u.insertBefore(t,m.elm,h.elm),m=r[--v],g=o[++d]):(e(s)&&(s=Vn(r,f,v)),e(c=n(g.key)?s[g.key]:A(g,r,f,v))?p(g,i,t,h.elm,!1,o,d):Un(l=r[c],g)?($(l,g,i,o,d),r[c]=void 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l=!0,f=t.firstChild,p=0;p<u.length;p++){if(!f||!k(f,u[p],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Gt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,f=[];if(e(t))l=!0,p(o,f);else{var d=n(t.nodeType);if(!d&&Un(t,o))$(t,o,f,null,null,a);else{if(d){if(1===t.nodeType&&t.hasAttribute(T)&&(t.removeAttribute(T),i=!0),r(i)&&k(t,o,f))return x(o,f,!0),t;c=t,t=new ct(u.tagName(c).toLowerCase(),{},[],void 0,c)}var v=t.elm,h=u.parentNode(v);if(p(o,f,v._leaveCb?null:h,u.nextSibling(v)),n(o.parent))for(var y=o.parent,g=m(o);y;){for(var _=0;_<s.destroy.length;++_)s.destroy[_](y);if(y.elm=o.elm,g){for(var w=0;w<s.create.length;++w)s.create[w](Fn,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else Mn(y);y=y.parent}n(h)?C(0,[t],0,0):n(t.tag)&&b(t)}}return x(o,f,l),o.elm}n(t)&&b(t)}}({nodeOps:Pn,modules:[Qn,er,cr,fr,wr,U?{create:Xr,activate:Xr,remove:function(t,e){!0!==t.data.show?Wr(t,e):e()}}:{}].concat(Xn)});W&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&ro(t,"input")});var Jr={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?te(n,"postpatch",function(){Jr.componentUpdated(t,e,n)}):Zr(t,e,n.context),t._vOptions=[].map.call(t.options,to)):("textarea"===n.tag||Nn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",eo),t.addEventListener("compositionend",no),t.addEventListener("change",no),W&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){Zr(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,to);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return Yr(t,o)}):e.value!==e.oldValue&&Yr(e.value,o))&&ro(t,"change")}}};function Zr(t,e,n){Qr(t,e,n),(z||q)&&setTimeout(function(){Qr(t,e,n)},0)}function Qr(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=E(r,to(a))>-1,a.selected!==i&&(a.selected=i);else if(j(to(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function Yr(t,e){return e.every(function(e){return!j(e,t)})}function to(t){return"_value"in t?t._value:t.value}function eo(t){t.target.composing=!0}function no(t){t.target.composing&&(t.target.composing=!1,ro(t.target,"input"))}function ro(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function oo(t){return!t.componentInstance||t.data&&t.data.transition?t:oo(t.componentInstance._vnode)}var io={model:Jr,show:{bind:function(t,e,n){var r=e.value,o=(n=oo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,zr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=oo(n)).data&&n.data.transition?(n.data.show=!0,r?zr(n,function(){t.style.display=t.__vOriginalDisplay}):Wr(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},ao={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function so(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?so(ae(e.children)):t}function co(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[g(i)]=o[i];return e}function uo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var lo=function(t){return t.tag||ie(t)},fo=function(t){return"show"===t.name},po={name:"transition",props:ao,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(lo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=so(i);if(!a)return i;if(this._leaving)return uo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=co(this),u=this._vnode,l=so(u);if(a.data.directives&&a.data.directives.some(fo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!ie(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=$({},c);if("out-in"===r)return this._leaving=!0,te(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),uo(t,i);if("in-out"===r){if(ie(a))return u;var p,d=function(){p()};te(c,"afterEnter",d),te(c,"enterCancelled",d),te(f,"delayLeave",function(t){p=t})}}return i}}},vo=$({tag:String,moveClass:String},ao);function ho(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function mo(t){t.data.newPos=t.elm.getBoundingClientRect()}function yo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete vo.mode;var go={Transition:po,TransitionGroup:{props:vo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=he(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var 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t.indexOf("-")>-1?Dn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Dn[t]=/HTMLUnknownElement/.test(e.toString())},$(un.options.directives,io),$(un.options.components,go),un.prototype.__patch__=U?Gr:O,un.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=lt),ge(t,"beforeMount"),r=function(){t._update(t._render(),n)},new ke(t,r,O,{before:function(){t._isMounted&&!t._isDestroyed&&ge(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,ge(t,"mounted")),t}(this,t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},U&&setTimeout(function(){P.devtools&&Q&&Q.emit("init",un)},0),un});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 2b6e8f9473f..080e3a65eaa 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -3467,7 +3467,7 @@
 
     el.model = {
       value: ("(" + value + ")"),
-      expression: ("\"" + value + "\""),
+      expression: JSON.stringify(value),
       callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
     };
   }
@@ -3909,7 +3909,7 @@
           var parent = el.parent;
           if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
             warn$1(
-              "Do not use v-for index as key on <transtion-group> children, " +
+              "Do not use v-for index as key on <transition-group> children, " +
               "this is the same as not using keys."
             );
           }
@@ -5058,7 +5058,9 @@
         el$1.tag !== 'template' &&
         el$1.tag !== 'slot'
       ) {
-        var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+        var normalizationType = checkSkip
+          ? state.maybeComponent(el$1) ? ",1" : ",0"
+          : "";
         return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
       }
       var normalizationType$1 = checkSkip
@@ -6884,9 +6886,10 @@
         ret[i] = render(val[key], key, i);
       }
     }
-    if (isDef(ret)) {
-      (ret)._isVList = true;
+    if (!isDef(ret)) {
+      ret = [];
     }
+    (ret)._isVList = true;
     return ret
   }
 
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index 53fc7bd0872..fc072297dbe 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -3228,7 +3228,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -3670,7 +3670,7 @@ function processKey (el) {
         var parent = el.parent;
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn$1(
-            "Do not use v-for index as key on <transtion-group> children, " +
+            "Do not use v-for index as key on <transition-group> children, " +
             "this is the same as not using keys."
           );
         }
@@ -4824,7 +4824,9 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
@@ -6656,9 +6658,10 @@ function renderList (
       ret[i] = render(val[key], key, i);
     }
   }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
+  if (!isDef(ret)) {
+    ret = [];
   }
+  (ret)._isVList = true;
   return ret
 }
 
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 04dd5d43fb7..2e58d0be531 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.20",
+  "version": "2.5.21",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 33c02e7d3f2..c599dab9bdd 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -2464,7 +2464,7 @@
 
     el.model = {
       value: ("(" + value + ")"),
-      expression: ("\"" + value + "\""),
+      expression: JSON.stringify(value),
       callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
     };
   }
@@ -2906,7 +2906,7 @@
           var parent = el.parent;
           if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
             warn$1(
-              "Do not use v-for index as key on <transtion-group> children, " +
+              "Do not use v-for index as key on <transition-group> children, " +
               "this is the same as not using keys."
             );
           }
@@ -4182,7 +4182,9 @@
         el$1.tag !== 'template' &&
         el$1.tag !== 'slot'
       ) {
-        var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+        var normalizationType = checkSkip
+          ? state.maybeComponent(el$1) ? ",1" : ",0"
+          : "";
         return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
       }
       var normalizationType$1 = checkSkip
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index fe35b66e736..5d410e907e5 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -2084,7 +2084,7 @@ function genComponentModel (
 
   el.model = {
     value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
+    expression: JSON.stringify(value),
     callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
   };
 }
@@ -2526,7 +2526,7 @@ function processKey (el) {
         var parent = el.parent;
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn$1(
-            "Do not use v-for index as key on <transtion-group> children, " +
+            "Do not use v-for index as key on <transition-group> children, " +
             "this is the same as not using keys."
           );
         }
@@ -3814,7 +3814,9 @@ function genChildren (
       el$1.tag !== 'template' &&
       el$1.tag !== 'slot'
     ) {
-      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
       return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
     }
     var normalizationType$1 = checkSkip
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index d14d67275bf..c742a35928d 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.20",
+  "version": "2.5.21",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 70754084ec2d84e44effeb8f82efda3397a08b0d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 11 Dec 2018 17:52:21 -0500
Subject: [PATCH 637/911] build: release 2.5.21

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 410d89c80cf..c837ef26d5b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.20",
+  "version": "2.5.21",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From b06c784b81a244e1bc2d028216fcd2ab873730b9 Mon Sep 17 00:00:00 2001
From: "Xin Du (Clark)" <clark.duxin@gmail.com>
Date: Wed, 12 Dec 2018 16:41:08 +0000
Subject: [PATCH 638/911] fix(ssr): support rendering comment (#9128)

---
 src/server/optimizing-compiler/codegen.js           |  6 +++++-
 .../server-compiler/compiler-options.spec.js        | 13 +++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 test/unit/modules/server-compiler/compiler-options.spec.js

diff --git a/src/server/optimizing-compiler/codegen.js b/src/server/optimizing-compiler/codegen.js
index 26097c07b48..9399761383a 100644
--- a/src/server/optimizing-compiler/codegen.js
+++ b/src/server/optimizing-compiler/codegen.js
@@ -225,7 +225,11 @@ function nodesToSegments (
     } else if (c.type === 2) {
       segments.push({ type: INTERPOLATION, value: c.expression })
     } else if (c.type === 3) {
-      segments.push({ type: RAW, value: escape(c.text) })
+      let text = escape(c.text)
+      if (c.isComment) {
+        text = '<!--' + text + '-->'
+      }
+      segments.push({ type: RAW, value: text })
     }
   }
   return segments
diff --git a/test/unit/modules/server-compiler/compiler-options.spec.js b/test/unit/modules/server-compiler/compiler-options.spec.js
new file mode 100644
index 00000000000..aa151a89f59
--- /dev/null
+++ b/test/unit/modules/server-compiler/compiler-options.spec.js
@@ -0,0 +1,13 @@
+import { ssrCompile } from 'web/server/compiler'
+
+describe('ssrCompile options', () => {
+  it('comments', () => {
+    const compiled = ssrCompile(`
+      <div>
+        <!-- test comments -->
+      </div>
+    `, { comments: true })
+
+    expect(compiled.render).toContain('<!-- test comments -->')
+  })
+})

From af9e2b3f0f4156fd52ed4444b96e2b8c0932c658 Mon Sep 17 00:00:00 2001
From: Nick Hall <iamssb@gmail.com>
Date: Thu, 13 Dec 2018 01:41:36 +0900
Subject: [PATCH 639/911] chore: minor comment cleanup (#9191)

---
 src/core/observer/dep.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/core/observer/dep.js b/src/core/observer/dep.js
index d344aff9445..974b9541c28 100644
--- a/src/core/observer/dep.js
+++ b/src/core/observer/dep.js
@@ -49,9 +49,9 @@ export default class Dep {
   }
 }
 
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
 Dep.target = null
 const targetStack = []
 

From 38e967b8067441ff37cb3b923200023a6b842759 Mon Sep 17 00:00:00 2001
From: "Xin Du (Clark)" <clark.duxin@gmail.com>
Date: Wed, 12 Dec 2018 16:41:45 +0000
Subject: [PATCH 640/911] refactor: tiny cleanup changes (#9193)

---
 src/core/instance/events.js           | 18 ++++++++----------
 src/core/util/debug.js                |  2 +-
 src/server/template-renderer/index.js |  2 +-
 3 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index 8225bdecb8e..bb07a96b42e 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -102,16 +102,14 @@ export function eventsMixin (Vue: Class<Component>) {
       vm._events[event] = null
       return vm
     }
-    if (fn) {
-      // specific handler
-      let cb
-      let i = cbs.length
-      while (i--) {
-        cb = cbs[i]
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i, 1)
-          break
-        }
+    // specific handler
+    let cb
+    let i = cbs.length
+    while (i--) {
+      cb = cbs[i]
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1)
+        break
       }
     }
     return vm
diff --git a/src/core/util/debug.js b/src/core/util/debug.js
index 6b7315f4b20..4aef7b53d4c 100644
--- a/src/core/util/debug.js
+++ b/src/core/util/debug.js
@@ -41,7 +41,7 @@ if (process.env.NODE_ENV !== 'production') {
       ? vm.options
       : vm._isVue
         ? vm.$options || vm.constructor.options
-        : vm || {}
+        : vm
     let name = options.name || options._componentTag
     const file = options.__file
     if (!name && file) {
diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index 05ce8c49cf7..65887c2591c 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -207,7 +207,7 @@ export default class TemplateRenderer {
     if (this.clientManifest) {
       const initial = this.preloadFiles.filter(({ file }) => isJS(file))
       const async = (this.getUsedAsyncFiles(context) || []).filter(({ file }) => isJS(file))
-      const needed = [initial[0]].concat(async || [], initial.slice(1))
+      const needed = [initial[0]].concat(async, initial.slice(1))
       return needed.map(({ file }) => {
         return `<script src="${this.publicPath}${file}" defer></script>`
       }).join('')

From 17296aa6bbbe9f1242bca01381d3a936a569ab7f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 5 Dec 2018 09:41:16 -0500
Subject: [PATCH 641/911] build: ship pre-minified versions of CommonJS build
 and server renderer

---
 benchmarks/ssr/common.js                      |     6 +-
 dist/vue.common.js                            | 11092 +---------------
 dist/vue.min.js                               |     2 +-
 dist/vue.runtime.common.js                    |  8117 +----------
 .../{build.js => build.dev.js}                |   149 +-
 packages/vue-server-renderer/build.prod.js    |     1 +
 packages/vue-server-renderer/index.js         |     6 +-
 scripts/build.js                              |     3 +-
 scripts/config.js                             |    37 +-
 9 files changed, 111 insertions(+), 19302 deletions(-)
 rename packages/vue-server-renderer/{build.js => build.dev.js} (98%)
 create mode 100644 packages/vue-server-renderer/build.prod.js

diff --git a/benchmarks/ssr/common.js b/benchmarks/ssr/common.js
index 688832f6dda..0411ac896dc 100644
--- a/benchmarks/ssr/common.js
+++ b/benchmarks/ssr/common.js
@@ -1,6 +1,6 @@
 'use strict'
 
-const self = (global || root)
+const self = (global || root) // eslint-disable-line
 
 self.performance = {
   now: function () {
@@ -35,11 +35,11 @@ module.exports = {
         }
       },
       // template: '<table><tr v-for="row in grid"><th>123</th><td v-for="item in row.items">{{ item.id }}</td></tr></table>',
-      template: '<table width="100%" cellspacing="2"><row v-for="row in grid" :row="row"></row></table>',
+      template: '<table width="100%" cellspacing="2"><row v-for="row in grid" :key="row.id" :row="row"></row></table>',
       components: {
         row: {
           props: ['row'],
-          template: '<tr><th>{{ Math.random() }}</th><column v-for="item in row.items"></column></tr>',
+          template: '<tr><th>{{ Math.random() }}</th><column v-for="item in row.items" :key="item.id"></column></tr>',
           components: {
             column: {
               template: '<td class="item">' +
diff --git a/dist/vue.common.js b/dist/vue.common.js
index 2fc5621920f..3bbc37c95fc 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,11091 +1,5 @@
-/*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
- * Released under the MIT License.
- */
-'use strict';
-
-/*  */
-
-var emptyObject = Object.freeze({});
-
-// These helpers produce better VM code in JS engines due to their
-// explicitness and function inlining.
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive.
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value, e.g., [object Object].
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert an input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if an attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array.
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether an object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it,
- * e.g., PhantomJS 1.x. Technically, we don't need this anymore
- * since native bind is now performant enough in most browsers.
- * But removing it would mean breaking code that was able to run in
- * PhantomJS 1.x, so this must be kept for backward compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/* eslint-disable no-unused-vars */
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
-
-/* eslint-enable no-unused-vars */
-
-/**
- * Return the same value.
- */
-var identity = function (_) { return _; };
-
-/**
- * Generate a string containing static keys from compiler modules.
- */
-function genStaticKeys (modules) {
-  return modules.reduce(function (keys, m) {
-    return keys.concat(m.staticKeys || [])
-  }, []).join(',')
-}
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (a instanceof Date && b instanceof Date) {
-        return a.getTime() === b.getTime()
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}
-
-/**
- * Return the first index at which a loosely equal value can be
- * found in the array (if value is a plain object, the array must
- * contain an object of the same shape), or -1 if it is not present.
- */
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Perform updates asynchronously. Intended to be used by Vue Test Utils
-   * This will significantly reduce performance if set to false.
-   */
-  async: true,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
-
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = /*@__PURE__*/(function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
-
-if (process.env.NODE_ENV !== 'production') {
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
-
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
-/*  */
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  if (process.env.NODE_ENV !== 'production' && !config.async) {
-    // subs aren't sorted in scheduler if not running async
-    // we need to sort them now to make sure they fire in correct
-    // order
-    subs.sort(function (a, b) { return a.id - b.id; });
-  }
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (target) {
-  targetStack.push(target);
-  Dep.target = target;
-}
-
-function popTarget () {
-  targetStack.pop();
-  Dep.target = targetStack[targetStack.length - 1];
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    // #7975
-    // clone children array to avoid mutating original in case of cloning
-    // a child.
-    vnode.children && vnode.children.slice(),
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-function toggleObserving (value) {
-  shouldObserve = value;
-}
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    if (hasProto) {
-      protoAugment(value, arrayMethods);
-    } else {
-      copyAugment(value, arrayMethods, arrayKeys);
-    }
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through all properties and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment a target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment a target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive$$1 (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if (process.env.NODE_ENV !== 'production' && customSetter) {
-        customSetter();
-      }
-      // #7981: for accessor properties without setter
-      if (getter && !setter) { return }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
-  }
-  defineReactive$$1(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-if (process.env.NODE_ENV !== 'production') {
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (
-      toVal !== fromVal &&
-      isPlainObject(toVal) &&
-      isPlainObject(fromVal)
-    ) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
-    }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
-      }
-    }
-  }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      process.env.NODE_ENV !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  if (process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
-  }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else if (process.env.NODE_ENV !== 'production') {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  
-  // Apply extends and mixins on the child options,
-  // but only if it is a raw options object that isn't
-  // the result of another mergeOptions call.
-  // Only merged options has the _base property.
-  if (!child._base) {
-    if (child.extends) {
-      parent = mergeOptions(parent, child.extends, vm);
-    }
-    if (child.mixins) {
-      for (var i = 0, l = child.mixins.length; i < l; i++) {
-        parent = mergeOptions(parent, child.mixins[i], vm);
-      }
-    }
-  }
-
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  if (
-    process.env.NODE_ENV !== 'production' &&
-    // skip validation for weex recycle-list child component props
-    !(false)
-  ) {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if (process.env.NODE_ENV !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-
-  if (!valid) {
-    warn(
-      getInvalidTypeMessage(name, value, expectedTypes),
-      vm
-    );
-    return
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
-  }
-}
-
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
-
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
-
-function getInvalidTypeMessage (name, value, expectedTypes) {
-  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
-    " Expected " + (expectedTypes.map(capitalize).join(', '));
-  var expectedType = expectedTypes[0];
-  var receivedType = toRawType(value);
-  var expectedValue = styleValue(value, expectedType);
-  var receivedValue = styleValue(value, receivedType);
-  // check if we need to specify expected value
-  if (expectedTypes.length === 1 &&
-      isExplicable(expectedType) &&
-      !isBoolean(expectedType, receivedType)) {
-    message += " with value " + expectedValue;
-  }
-  message += ", got " + receivedType + " ";
-  // check if we need to specify received value
-  if (isExplicable(receivedType)) {
-    message += "with value " + receivedValue + ".";
-  }
-  return message
-}
-
-function styleValue (value, type) {
-  if (type === 'String') {
-    return ("\"" + value + "\"")
-  } else if (type === 'Number') {
-    return ("" + (Number(value)))
-  } else {
-    return ("" + value)
-  }
-}
-
-function isExplicable (value) {
-  var explicitTypes = ['string', 'number', 'boolean'];
-  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
-}
-
-function isBoolean () {
-  var args = [], len = arguments.length;
-  while ( len-- ) args[ len ] = arguments[ len ];
-
-  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
+if (process.env.NODE_ENV === 'production') {
+  module.exports = require('./vue.common.prod.js')
 } else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;    
-    }
-  })
-}
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
-/*  */
-
-var mark;
-var measure;
-
-if (process.env.NODE_ENV !== 'production') {
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-var initProxy;
-
-if (process.env.NODE_ENV !== 'production') {
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
-
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
-
-  var warnReservedPrefix = function (target, key) {
-    warn(
-      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
-      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
-      'See: https://vuejs.org/v2/api/#data',
-      target
-    );
-  };
-
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
-      }
-    });
-  }
-
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) ||
-        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
-      if (!has && !isAllowed) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-var seenObjects = new _Set();
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  createOnceHandler,
-  vm
-) {
-  var name, def$$1, cur, old, event;
-  for (name in on) {
-    def$$1 = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      if (isTrue(event.once)) {
-        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
-      }
-      add(event.name, cur, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  var invoker;
-  var oldHook = def[hookKey];
-
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      if (process.env.NODE_ENV !== 'production') {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res
-}
-
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      }
-    });
-
-    var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                process.env.NODE_ENV !== 'production'
-                  ? ("timeout (" + (res.timeout) + "ms)")
-                  : null
-              );
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
-  }
-}
-
-/*  */
-
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
-/*  */
-
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    if (process.env.NODE_ENV !== 'production') {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
-      }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
-      }
-    }
-    return vm
-  };
-}
-
-/*  */
-
-
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
-  }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
-}
-
-function initLifecycle (vm) {
-  var options = vm.$options;
-
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    if (process.env.NODE_ENV !== 'production') {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
-      }
-    }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
-
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
-  }
-  return false
-}
-
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
-
-/*  */
-
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (process.env.NODE_ENV !== 'production' && !config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-
-
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
-    }
-    this.active = false;
-  }
-};
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
-      }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    } else {
-      defineReactive$$1(props, key, value);
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
-
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    process.env.NODE_ENV !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
-
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production' && getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else if (process.env.NODE_ENV !== 'production') {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
-  }
-}
-
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
-}
-
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
-      }
-    }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
-
-/*  */
-
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
-
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      } else {
-        defineReactive$$1(vm, key, result[key]);
-      }
-    });
-    toggleObserving(true);
-  }
-}
-
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else if (process.env.NODE_ENV !== 'production') {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
-    }
-    return result
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
-  }
-
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  var vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-    }
-    return res
-  }
-}
-
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (process.env.NODE_ENV !== 'production') {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
-  } else {
-    on[event] = callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
-    }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
-  }
-}
-
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
-
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-var uid$3 = 0;
-
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
-    }
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      initProxy(vm);
-    } else {
-      vm._renderProxy = vm;
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified
-}
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
-function Vue (options) {
-  if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
-
-/*  */
-
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
-
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
-
-/*  */
-
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
-
-/*  */
-
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
-
-    var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production' && name) {
-      validateComponentName(name);
-    }
-
-    var Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
-
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
-
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production' && type === 'component') {
-          validateComponentName(id);
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
-    };
-  });
-}
-
-/*  */
-
-
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-
-  destroyed: function destroyed () {
-    for (var key in this.cache) {
-      pruneCacheEntry(this.cache, key, this.keys);
-    }
-  },
-
-  mounted: function mounted () {
-    var this$1 = this;
-
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
-
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-};
-
-var builtInComponents = {
-  KeepAlive: KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  if (process.env.NODE_ENV !== 'production') {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue);
-
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
-  }
-});
-
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.21';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-var xlinkNS = 'http://www.w3.org/1999/xlink';
-
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
-
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
-
-/*  */
-
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class)
-}
-
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
-
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isPreTag = function (tag) { return tag === 'pre'; };
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
-  }
-  if (isReservedTag(tag)) {
-    return false
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-  }
-}
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
-  }
-}
-
-/*  */
-
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-var nodeOps = /*#__PURE__*/Object.freeze({
-  createElement: createElement$1,
-  createElementNS: createElementNS,
-  createTextNode: createTextNode,
-  createComment: createComment,
-  insertBefore: insertBefore,
-  removeChild: removeChild,
-  appendChild: appendChild,
-  parentNode: parentNode,
-  nextSibling: nextSibling,
-  tagName: tagName,
-  setTextContent: setTextContent,
-  setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
-
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
-
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
-
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
-  }
-  return map
-}
-
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
-
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
-
-  function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove$$1.listeners = listeners;
-    return remove$$1
-  }
-
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
-
-  var creatingElmInVPre = 0;
-
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
-
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
-      }
-    }
-  }
-
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (nodeOps.parentNode(ref$$1) === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      if (process.env.NODE_ENV !== 'production') {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
-    }
-  }
-
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag)
-  }
-
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
-        }
-        ancestor = ancestor.parent;
-      }
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
-
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
-
-    if (process.env.NODE_ENV !== 'production') {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
-        }
-      }
-    }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
-  }
-
-  function patchVnode (
-    oldVnode,
-    vnode,
-    insertedVnodeQueue,
-    ownerArray,
-    index,
-    removeOnly
-  ) {
-    if (oldVnode === vnode) {
-      return
-    }
-
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // clone reused vnode
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    var elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
-
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        if (process.env.NODE_ENV !== 'production') {
-          checkDuplicateKeys(ch);
-        }
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
-    }
-  }
-
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
-            }
-          }
-        }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true
-  }
-
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
-    }
-  }
-
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
-      return
-    }
-
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else if (process.env.NODE_ENV !== 'production') {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
-
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
-
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-            ancestor = ancestor.parent;
-          }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
-  }
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  // $flow-disable-line
-  return res
-}
-
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
-
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
-    }
-  }
-}
-
-var baseModules = [
-  ref,
-  directives
-];
-
-/*  */
-
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    baseSetAttr(el, key, value);
-  }
-}
-
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-    /* istanbul ignore if */
-    if (
-      isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
-    ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
-    }
-    el.setAttribute(key, value);
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-var validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters (exp) {
-  var inSingle = false;
-  var inDouble = false;
-  var inTemplateString = false;
-  var inRegex = false;
-  var curly = 0;
-  var square = 0;
-  var paren = 0;
-  var lastFilterIndex = 0;
-  var c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
-    } else if (
-      c === 0x7C && // pipe
-      exp.charCodeAt(i + 1) !== 0x7C &&
-      exp.charCodeAt(i - 1) !== 0x7C &&
-      !curly && !square && !paren
-    ) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
-      }
-    } else {
-      switch (c) {
-        case 0x22: inDouble = true; break         // "
-        case 0x27: inSingle = true; break         // '
-        case 0x60: inTemplateString = true; break // `
-        case 0x28: paren++; break                 // (
-        case 0x29: paren--; break                 // )
-        case 0x5B: square++; break                // [
-        case 0x5D: square--; break                // ]
-        case 0x7B: curly++; break                 // {
-        case 0x7D: curly--; break                 // }
-      }
-      if (c === 0x2f) { // /
-        var j = i - 1;
-        var p = (void 0);
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') { break }
-        }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
-        }
-      }
-    }
-  }
-
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
-  }
-
-  function pushFilter () {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
-  }
-
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
-    }
-  }
-
-  return expression
-}
-
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
-  }
-}
-
-/*  */
-
-function baseWarn (msg) {
-  console.error(("[Vue compiler]: " + msg));
-}
-
-function pluckModuleFunction (
-  modules,
-  key
-) {
-  return modules
-    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
-    : []
-}
-
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-// add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
-function addDirective (
-  el,
-  name,
-  rawName,
-  value,
-  arg,
-  modifiers
-) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
-  el.plain = false;
-}
-
-function addHandler (
-  el,
-  name,
-  value,
-  modifiers,
-  important,
-  warn
-) {
-  modifiers = modifiers || emptyObject;
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (
-    process.env.NODE_ENV !== 'production' && warn &&
-    modifiers.prevent && modifiers.passive
-  ) {
-    warn(
-      'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
-    );
-  }
-
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
-  // check capture modifier
-  if (modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
-  }
-  /* istanbul ignore if */
-  if (modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
-  }
-
-  var events;
-  if (modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
-  }
-
-  var newHandler = {
-    value: value.trim()
-  };
-  if (modifiers !== emptyObject) {
-    newHandler.modifiers = modifiers;
-  }
-
-  var handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-
-  el.plain = false;
-}
-
-function getBindingAttr (
-  el,
-  name,
-  getStatic
-) {
-  var dynamicValue =
-    getAndRemoveAttr(el, ':' + name) ||
-    getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue)
-  } else if (getStatic !== false) {
-    var staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue)
-    }
-  }
-}
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-function getAndRemoveAttr (
-  el,
-  name,
-  removeFromMap
-) {
-  var val;
-  if ((val = el.attrsMap[name]) != null) {
-    var list = el.attrsList;
-    for (var i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break
-      }
-    }
-  }
-  if (removeFromMap) {
-    delete el.attrsMap[name];
-  }
-  return val
-}
-
-/*  */
-
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-      "? " + baseValueExpression + ".trim()" +
-      ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: JSON.stringify(value),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-  };
-}
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var res = parseModel(value);
-  if (res.key === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
-  }
-}
-
-/**
- * Parse a v-model expression into a base path and a final key segment.
- * Handles both dot-path and possible square brackets.
- *
- * Possible cases:
- *
- * - test
- * - test[key]
- * - test[test1[key]]
- * - test["a"][key]
- * - xxx.test[a[a].test1[key]]
- * - test.xxx.a["asa"][test1[key]]
- *
- */
-
-var len, str, chr, index$1, expressionPos, expressionEndPos;
-
-
-
-function parseModel (val) {
-  // Fix https://github.com/vuejs/vue/pull/7730
-  // allow v-model="obj.val " (trailing whitespace)
-  val = val.trim();
-  len = val.length;
-
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    index$1 = val.lastIndexOf('.');
-    if (index$1 > -1) {
-      return {
-        exp: val.slice(0, index$1),
-        key: '"' + val.slice(index$1 + 1) + '"'
-      }
-    } else {
-      return {
-        exp: val,
-        key: null
-      }
-    }
-  }
-
-  str = val;
-  index$1 = expressionPos = expressionEndPos = 0;
-
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
-
-  return {
-    exp: val.slice(0, expressionPos),
-    key: val.slice(expressionPos + 1, expressionEndPos)
-  }
-}
-
-function next () {
-  return str.charCodeAt(++index$1)
-}
-
-function eof () {
-  return index$1 >= len
-}
-
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index$1;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index$1;
-      break
-    }
-  }
-}
-
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
-  }
-}
-
-/*  */
-
-var warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
-
-  if (process.env.NODE_ENV !== 'production') {
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
-    }
-  }
-
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$1(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
-
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-    "?_i(" + value + "," + valueBinding + ")>-1" + (
-      trueValueBinding === 'true'
-        ? (":(" + value + ")")
-        : (":_q(" + value + "," + trueValueBinding + ")")
-    )
-  );
-  addHandler(el, 'change',
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
-      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-
-  // warn if v-bind:value conflicts with v-model
-  // except for inputs with v-bind:type
-  if (process.env.NODE_ENV !== 'production') {
-    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (value$1 && !typeBinding) {
-      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
-  }
-
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler$1 (event, handler, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
-    }
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res
-}
-
-/*  */
-
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-var vendorNames = ['Webkit', 'Moz', 'ms'];
-
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
-
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
-  }
-
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
-
-  var style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
-
-  var newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-var whitespaceRE = /\s+/;
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition (def$$1) {
-  if (!def$$1) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
-    var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
-    }
-    extend(res, def$$1);
-    return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
-
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  // JSDOM may return undefined for transition properties
-  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
-  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
-  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
-// in a locale-dependent way, using a comma instead of a dot.
-// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
-// as a floor function) causing unexpected behaviors
-function toMs (s) {
-  return Number(s.slice(0, -1).replace(',', '.')) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
-
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave (vnode, rm) {
-  var el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show && el.parentNode) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
-            }
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
-
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
-
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: directive,
-  show: show
-};
-
-/*  */
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
-
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data
-}
-
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
-
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
-  }
-}
-
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
-
-var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
-
-var isVShowDirective = function (d) { return d.name === 'show'; };
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render: function render (h) {
-    var this$1 = this;
-
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(isNotTextNode);
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
-
-    // warn multiple elements
-    if (process.env.NODE_ENV !== 'production' && children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
-
-    var mode = this.mode;
-
-    // warn invalid mode
-    if (process.env.NODE_ENV !== 'production' &&
-      mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
-
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
-
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
-      child.data.show = true;
-    }
-
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
-      }
-    }
-
-    return rawChild
-  }
-};
-
-/*  */
-
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props: props,
-
-  beforeMount: function beforeMount () {
-    var this$1 = this;
-
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      var restoreActiveInstance = setActiveInstance(this$1);
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      restoreActiveInstance();
-      update.call(this$1, vnode, hydrating);
-    };
-  },
-
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else if (process.env.NODE_ENV !== 'production') {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
-        }
-      }
-    }
-
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children)
-  },
-
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (e && e.target !== el) {
-            return
-          }
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
-    }
-  }
-};
-
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        process.env.NODE_ENV !== 'production' &&
-        process.env.NODE_ENV !== 'test' &&
-        isChrome
-      ) {
-        console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
-        );
-      }
-    }
-    if (process.env.NODE_ENV !== 'production' &&
-      process.env.NODE_ENV !== 'test' &&
-      config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
-}
-
-/*  */
-
-var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
-var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-var buildRegex = cached(function (delimiters) {
-  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-});
-
-
-
-function parseText (
-  text,
-  delimiters
-) {
-  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return
-  }
-  var tokens = [];
-  var rawTokens = [];
-  var lastIndex = tagRE.lastIndex = 0;
-  var match, index, tokenValue;
-  while ((match = tagRE.exec(text))) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      rawTokens.push(tokenValue = text.slice(lastIndex, index));
-      tokens.push(JSON.stringify(tokenValue));
-    }
-    // tag token
-    var exp = parseFilters(match[1].trim());
-    tokens.push(("_s(" + exp + ")"));
-    rawTokens.push({ '@binding': exp });
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    rawTokens.push(tokenValue = text.slice(lastIndex));
-    tokens.push(JSON.stringify(tokenValue));
-  }
-  return {
-    expression: tokens.join('+'),
-    tokens: rawTokens
-  }
-}
-
-/*  */
-
-function transformNode (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticClass = getAndRemoveAttr(el, 'class');
-  if (process.env.NODE_ENV !== 'production' && staticClass) {
-    var res = parseText(staticClass, options.delimiters);
-    if (res) {
-      warn(
-        "class=\"" + staticClass + "\": " +
-        'Interpolation inside attributes has been removed. ' +
-        'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
-      );
-    }
-  }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
-
-function genData (el) {
-  var data = '';
-  if (el.staticClass) {
-    data += "staticClass:" + (el.staticClass) + ",";
-  }
-  if (el.classBinding) {
-    data += "class:" + (el.classBinding) + ",";
-  }
-  return data
-}
-
-var klass$1 = {
-  staticKeys: ['staticClass'],
-  transformNode: transformNode,
-  genData: genData
-};
-
-/*  */
-
-function transformNode$1 (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      var res = parseText(staticStyle, options.delimiters);
-      if (res) {
-        warn(
-          "style=\"" + staticStyle + "\": " +
-          'Interpolation inside attributes has been removed. ' +
-          'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
-        );
-      }
-    }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-  }
-
-  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
-  }
-}
-
-function genData$1 (el) {
-  var data = '';
-  if (el.staticStyle) {
-    data += "staticStyle:" + (el.staticStyle) + ",";
-  }
-  if (el.styleBinding) {
-    data += "style:(" + (el.styleBinding) + "),";
-  }
-  return data
-}
-
-var style$1 = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-};
-
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
-  }
-};
-
-/*  */
-
-var isUnaryTag = makeMap(
-  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-  'link,meta,param,source,track,wbr'
-);
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-var canBeLeftOpenTag = makeMap(
-  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-);
-
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-var isNonPhrasingTag = makeMap(
-  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-  'title,tr,track'
-);
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-// Regular Expressions for parsing tags and attributes
-var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-var startTagOpen = new RegExp(("^<" + qnameCapture));
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
-var comment = /^<!\--/;
-var conditionalComment = /^<!\[/;
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n',
-  '&#9;': '\t'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) { return decodingMap[match]; })
-}
-
-function parseHTML (html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
-            }
-            advance(commentEnd + 3);
-            continue
-          }
-        }
-
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          var conditionalEnd = html.indexOf(']>');
-
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
-            continue
-          }
-        }
-
-        // Doctype:
-        var doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue
-        }
-
-        // End tag:
-        var endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          var curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue
-        }
-
-        // Start tag:
-        var startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
-            advance(1);
-          }
-          continue
-        }
-      }
-
-      var text = (void 0), rest = (void 0), next = (void 0);
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (
-          !endTag.test(rest) &&
-          !startTagOpen.test(rest) &&
-          !comment.test(rest) &&
-          !conditionalComment.test(rest)
-        ) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) { break }
-          textEnd += next;
-          rest = html.slice(textEnd);
-        }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
-      }
-
-      if (textEnd < 0) {
-        text = html;
-        html = '';
-      }
-
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      var endTagLength = 0;
-      var stackedTag = lastTag.toLowerCase();
-      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text
-            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
-            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return ''
-      });
-      index += html.length - rest$1.length;
-      html = rest$1;
-      parseEndTag(stackedTag, index - endTagLength, index);
-    }
-
-    if (html === last) {
-      options.chars && options.chars(html);
-      if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
-      }
-      break
-    }
-  }
-
-  // Clean up any remaining tags
-  parseEndTag();
-
-  function advance (n) {
-    index += n;
-    html = html.substring(n);
-  }
-
-  function parseStartTag () {
-    var start = html.match(startTagOpen);
-    if (start) {
-      var match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match
-      }
-    }
-  }
-
-  function handleStartTag (match) {
-    var tagName = match.tagName;
-    var unarySlash = match.unarySlash;
-
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
-      }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
-      }
-    }
-
-    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
-
-    var l = match.attrs.length;
-    var attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      var args = match.attrs[i];
-      var value = args[3] || args[4] || args[5] || '';
-      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-        ? options.shouldDecodeNewlinesForHref
-        : options.shouldDecodeNewlines;
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, shouldDecodeNewlines)
-      };
-    }
-
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
-
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
-    }
-  }
-
-  function parseEndTag (tagName, start, end) {
-    var pos, lowerCasedTagName;
-    if (start == null) { start = index; }
-    if (end == null) { end = index; }
-
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break
-        }
-      }
-    } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
-    }
-
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (var i = stack.length - 1; i >= pos; i--) {
-        if (process.env.NODE_ENV !== 'production' &&
-          (i > pos || !tagName) &&
-          options.warn
-        ) {
-          options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
-          );
-        }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
-        }
-      }
-
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
-      }
-      if (options.end) {
-        options.end(tagName, start, end);
-      }
-    }
-  }
-}
-
-/*  */
-
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
-var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
-var stripParensRE = /^\(|\)$/g;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$2;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
-
-
-function createASTElement (
-  tag,
-  attrs,
-  parent
-) {
-  return {
-    type: 1,
-    tag: tag,
-    attrsList: attrs,
-    attrsMap: makeAttrsMap(attrs),
-    parent: parent,
-    children: []
-  }
-}
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$2 = options.warn || baseWarn;
-
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
-
-  var stack = [];
-  var preserveWhitespace = options.preserveWhitespace !== false;
-  var root;
-  var currentParent;
-  var inVPre = false;
-  var inPre = false;
-  var warned = false;
-
-  function warnOnce (msg) {
-    if (!warned) {
-      warned = true;
-      warn$2(msg);
-    }
-  }
-
-  function closeElement (element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-    // apply post-transforms
-    for (var i = 0; i < postTransforms.length; i++) {
-      postTransforms[i](element, options);
-    }
-  }
-
-  parseHTML(template, {
-    warn: warn$2,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-    shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
-
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
-
-      var element = createASTElement(tag, attrs, currentParent);
-      if (ns) {
-        element.ns = ns;
-      }
-
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        process.env.NODE_ENV !== 'production' && warn$2(
-          'Templates should only be responsible for mapping the state to the ' +
-          'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
-        );
-      }
-
-      // apply pre-transforms
-      for (var i = 0; i < preTransforms.length; i++) {
-        element = preTransforms[i](element, options) || element;
-      }
-
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
-      }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else if (!element.processed) {
-        // structural directives
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
-
-      function checkRootConstraints (el) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
-      }
-
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else if (process.env.NODE_ENV !== 'production') {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
-      }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
-      } else {
-        closeElement(element);
-      }
-    },
-
-    end: function end () {
-      // remove trailing whitespace
-      var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      closeElement(element);
-    },
-
-    chars: function chars (text) {
-      if (!currentParent) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (text === template) {
-            warnOnce(
-              'Component template requires a root element, rather than just text.'
-            );
-          } else if ((text = text.trim())) {
-            warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
-            );
-          }
-        }
-        return
-      }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE &&
-        currentParent.tag === 'textarea' &&
-        currentParent.attrsMap.placeholder === text
-      ) {
-        return
-      }
-      var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        var res;
-        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression: res.expression,
-            tokens: res.tokens,
-            text: text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text: text
-          });
-        }
-      }
-    },
-    comment: function comment (text) {
-      currentParent.children.push({
-        type: 3,
-        text: text,
-        isComment: true
-      });
-    }
-  });
-  return root
-}
-
-function processPre (el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
-    }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
-  }
-}
-
-function processElement (element, options) {
-  processKey(element);
-
-  // determine whether this is a plain element after
-  // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
-
-  processRef(element);
-  processSlot(element);
-  processComponent(element);
-  for (var i = 0; i < transforms.length; i++) {
-    element = transforms[i](element, options) || element;
-  }
-  processAttrs(element);
-}
-
-function processKey (el) {
-  var exp = getBindingAttr(el, 'key');
-  if (exp) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (el.tag === 'template') {
-        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
-      }
-      if (el.for) {
-        var iterator = el.iterator2 || el.iterator1;
-        var parent = el.parent;
-        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
-          warn$2(
-            "Do not use v-for index as key on <transition-group> children, " +
-            "this is the same as not using keys."
-          );
-        }
-      }
-    }
-    el.key = exp;
-  }
-}
-
-function processRef (el) {
-  var ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
-  }
-}
-
-function processFor (el) {
-  var exp;
-  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var res = parseFor(exp);
-    if (res) {
-      extend(el, res);
-    } else if (process.env.NODE_ENV !== 'production') {
-      warn$2(
-        ("Invalid v-for expression: " + exp)
-      );
-    }
-  }
-}
-
-
-
-function parseFor (exp) {
-  var inMatch = exp.match(forAliasRE);
-  if (!inMatch) { return }
-  var res = {};
-  res.for = inMatch[2].trim();
-  var alias = inMatch[1].trim().replace(stripParensRE, '');
-  var iteratorMatch = alias.match(forIteratorRE);
-  if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '').trim();
-    res.iterator1 = iteratorMatch[1].trim();
-    if (iteratorMatch[2]) {
-      res.iterator2 = iteratorMatch[2].trim();
-    }
-  } else {
-    res.alias = alias;
-  }
-  return res
-}
-
-function processIf (el) {
-  var exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
-    }
-    var elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
-    }
-  }
-}
-
-function processIfConditions (el, parent) {
-  var prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$2(
-      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
-    );
-  }
-}
-
-function findPrevElement (children) {
-  var i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i]
-    } else {
-      if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
-        warn$2(
-          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
-        );
-      }
-      children.pop();
-    }
-  }
-}
-
-function addIfCondition (el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
-  }
-  el.ifConditions.push(condition);
-}
-
-function processOnce (el) {
-  var once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
-  }
-}
-
-function processSlot (el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if (process.env.NODE_ENV !== 'production' && el.key) {
-      warn$2(
-        "`key` does not work on <slot> because slots are abstract outlets " +
-        "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
-      );
-    }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && slotScope) {
-        warn$2(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
-        warn$2(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
-      }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
-    }
-  }
-}
-
-function processComponent (el) {
-  var binding;
-  if ((binding = getBindingAttr(el, 'is'))) {
-    el.component = binding;
-  }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
-  }
-}
-
-function processAttrs (el) {
-  var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
-      }
-      if (bindRE.test(name)) { // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (
-          process.env.NODE_ENV !== 'production' &&
-          value.trim().length === 0
-        ) {
-          warn$2(
-            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
-          );
-        }
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') { name = 'innerHTML'; }
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
-            );
-          }
-        }
-        if (isProp || (
-          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-        )) {
-          addProp(el, name, value);
-        } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) { // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
-      } else { // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        var argMatch = name.match(argRE);
-        var arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
-        }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if (process.env.NODE_ENV !== 'production' && name === 'model') {
-          checkForAliasModel(el, value);
-        }
-      }
-    } else {
-      // literal attribute
-      if (process.env.NODE_ENV !== 'production') {
-        var res = parseText(value, delimiters);
-        if (res) {
-          warn$2(
-            name + "=\"" + value + "\": " +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
-          );
-        }
-      }
-      addAttr(el, name, JSON.stringify(value));
-      // #6887 firefox doesn't update muted state if set via attribute
-      // even immediately after element creation
-      if (!el.component &&
-          name === 'muted' &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
-      }
-    }
-  }
-}
-
-function checkInFor (el) {
-  var parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true
-    }
-    parent = parent.parent;
-  }
-  return false
-}
-
-function parseModifiers (name) {
-  var match = name.match(modifierRE);
-  if (match) {
-    var ret = {};
-    match.forEach(function (m) { ret[m.slice(1)] = true; });
-    return ret
-  }
-}
-
-function makeAttrsMap (attrs) {
-  var map = {};
-  for (var i = 0, l = attrs.length; i < l; i++) {
-    if (
-      process.env.NODE_ENV !== 'production' &&
-      map[attrs[i].name] && !isIE && !isEdge
-    ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
-    }
-    map[attrs[i].name] = attrs[i].value;
-  }
-  return map
-}
-
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
-
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
-}
-
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
-
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
-  }
-  return res
-}
-
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
-    }
-    _el = _el.parent;
-  }
-}
-
-/*  */
-
-function preTransformNode (el, options) {
-  if (el.tag === 'input') {
-    var map = el.attrsMap;
-    if (!map['v-model']) {
-      return
-    }
-
-    var typeBinding;
-    if (map[':type'] || map['v-bind:type']) {
-      typeBinding = getBindingAttr(el, 'type');
-    }
-    if (!map.type && !typeBinding && map['v-bind']) {
-      typeBinding = "(" + (map['v-bind']) + ").type";
-    }
-
-    if (typeBinding) {
-      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
-      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
-      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-      // 1. checkbox
-      var branch0 = cloneASTElement(el);
-      // process for on the main node
-      processFor(branch0);
-      addRawAttr(branch0, 'type', 'checkbox');
-      processElement(branch0, options);
-      branch0.processed = true; // prevent it from double-processed
-      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
-      addIfCondition(branch0, {
-        exp: branch0.if,
-        block: branch0
-      });
-      // 2. add radio else-if condition
-      var branch1 = cloneASTElement(el);
-      getAndRemoveAttr(branch1, 'v-for', true);
-      addRawAttr(branch1, 'type', 'radio');
-      processElement(branch1, options);
-      addIfCondition(branch0, {
-        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
-        block: branch1
-      });
-      // 3. other
-      var branch2 = cloneASTElement(el);
-      getAndRemoveAttr(branch2, 'v-for', true);
-      addRawAttr(branch2, ':type', typeBinding);
-      processElement(branch2, options);
-      addIfCondition(branch0, {
-        exp: ifCondition,
-        block: branch2
-      });
-
-      if (hasElse) {
-        branch0.else = true;
-      } else if (elseIfCondition) {
-        branch0.elseif = elseIfCondition;
-      }
-
-      return branch0
-    }
-  }
-}
-
-function cloneASTElement (el) {
-  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-}
-
-var model$1 = {
-  preTransformNode: preTransformNode
-};
-
-var modules$1 = [
-  klass$1,
-  style$1,
-  model$1
-];
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
-};
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var isStaticKey;
-var isPlatformReservedTag;
-
-var genStaticKeysCached = cached(genStaticKeys$1);
-
-/**
- * Goal of the optimizer: walk the generated template AST tree
- * and detect sub-trees that are purely static, i.e. parts of
- * the DOM that never needs to change.
- *
- * Once we detect these sub-trees, we can:
- *
- * 1. Hoist them into constants, so that we no longer need to
- *    create fresh nodes for them on each re-render;
- * 2. Completely skip them in the patching process.
- */
-function optimize (root, options) {
-  if (!root) { return }
-  isStaticKey = genStaticKeysCached(options.staticKeys || '');
-  isPlatformReservedTag = options.isReservedTag || no;
-  // first pass: mark all non-static nodes.
-  markStatic$1(root);
-  // second pass: mark static roots.
-  markStaticRoots(root, false);
-}
-
-function genStaticKeys$1 (keys) {
-  return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
-    (keys ? ',' + keys : '')
-  )
-}
-
-function markStatic$1 (node) {
-  node.static = isStatic(node);
-  if (node.type === 1) {
-    // do not make component slot content static. this avoids
-    // 1. components not able to mutate slot nodes
-    // 2. static slot content fails for hot-reloading
-    if (
-      !isPlatformReservedTag(node.tag) &&
-      node.tag !== 'slot' &&
-      node.attrsMap['inline-template'] == null
-    ) {
-      return
-    }
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      markStatic$1(child);
-      if (!child.static) {
-        node.static = false;
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        markStatic$1(block);
-        if (!block.static) {
-          node.static = false;
-        }
-      }
-    }
-  }
-}
-
-function markStaticRoots (node, isInFor) {
-  if (node.type === 1) {
-    if (node.static || node.once) {
-      node.staticInFor = isInFor;
-    }
-    // For a node to qualify as a static root, it should have children that
-    // are not just static text. Otherwise the cost of hoisting out will
-    // outweigh the benefits and it's better off to just always render it fresh.
-    if (node.static && node.children.length && !(
-      node.children.length === 1 &&
-      node.children[0].type === 3
-    )) {
-      node.staticRoot = true;
-      return
-    } else {
-      node.staticRoot = false;
-    }
-    if (node.children) {
-      for (var i = 0, l = node.children.length; i < l; i++) {
-        markStaticRoots(node.children[i], isInFor || !!node.for);
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        markStaticRoots(node.ifConditions[i$1].block, isInFor);
-      }
-    }
-  }
-}
-
-function isStatic (node) {
-  if (node.type === 2) { // expression
-    return false
-  }
-  if (node.type === 3) { // text
-    return true
-  }
-  return !!(node.pre || (
-    !node.hasBindings && // no dynamic bindings
-    !node.if && !node.for && // not v-if or v-for or v-else
-    !isBuiltInTag(node.tag) && // not a built-in
-    isPlatformReservedTag(node.tag) && // not a component
-    !isDirectChildOfTemplateFor(node) &&
-    Object.keys(node).every(isStaticKey)
-  ))
-}
-
-function isDirectChildOfTemplateFor (node) {
-  while (node.parent) {
-    node = node.parent;
-    if (node.tag !== 'template') {
-      return false
-    }
-    if (node.for) {
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
-
-// KeyboardEvent.keyCode aliases
-var keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// KeyboardEvent.key aliases
-var keyNames = {
-  // #7880: IE11 and Edge use `Esc` for Escape key name.
-  esc: ['Esc', 'Escape'],
-  tab: 'Tab',
-  enter: 'Enter',
-  // #9112: IE11 uses `Spacebar` for Space key name.
-  space: [' ', 'Spacebar'],
-  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
-  up: ['Up', 'ArrowUp'],
-  left: ['Left', 'ArrowLeft'],
-  right: ['Right', 'ArrowRight'],
-  down: ['Down', 'ArrowDown'],
-  // #9112: IE11 uses `Del` for Delete key name.
-  'delete': ['Backspace', 'Delete', 'Del']
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
-
-var modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard("$event.target !== $event.currentTarget"),
-  ctrl: genGuard("!$event.ctrlKey"),
-  shift: genGuard("!$event.shiftKey"),
-  alt: genGuard("!$event.altKey"),
-  meta: genGuard("!$event.metaKey"),
-  left: genGuard("'button' in $event && $event.button !== 0"),
-  middle: genGuard("'button' in $event && $event.button !== 1"),
-  right: genGuard("'button' in $event && $event.button !== 2")
-};
-
-function genHandlers (
-  events,
-  isNative
-) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
-  for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
-  }
-  return res.slice(0, -1) + '}'
-}
-
-function genHandler (
-  name,
-  handler
-) {
-  if (!handler) {
-    return 'function(){}'
-  }
-
-  if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
-  }
-
-  var isMethodPath = simplePathRE.test(handler.value);
-  var isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    if (isMethodPath || isFunctionExpression) {
-      return handler.value
-    }
-    return ("function($event){" + (handler.value) + "}") // inline statement
-  } else {
-    var code = '';
-    var genModifierCode = '';
-    var keys = [];
-    for (var key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else if (key === 'exact') {
-        var modifiers = (handler.modifiers);
-        genModifierCode += genGuard(
-          ['ctrl', 'shift', 'alt', 'meta']
-            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
-            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
-            .join('||')
-        );
-      } else {
-        keys.push(key);
-      }
-    }
-    if (keys.length) {
-      code += genKeyFilter(keys);
-    }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
-    }
-    var handlerCode = isMethodPath
-      ? ("return " + (handler.value) + "($event)")
-      : isFunctionExpression
-        ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
-    return ("function($event){" + code + handlerCode + "}")
-  }
-}
-
-function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
-}
-
-function genFilterCode (key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return ("$event.keyCode!==" + keyVal)
-  }
-  var keyCode = keyCodes[key];
-  var keyName = keyNames[key];
-  return (
-    "_k($event.keyCode," +
-    (JSON.stringify(key)) + "," +
-    (JSON.stringify(keyCode)) + "," +
-    "$event.key," +
-    "" + (JSON.stringify(keyName)) +
-    ")"
-  )
-}
-
-/*  */
-
-function on (el, dir) {
-  if (process.env.NODE_ENV !== 'production' && dir.modifiers) {
-    warn("v-on without argument does not support modifiers.");
-  }
-  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
-}
-
-/*  */
-
-function bind$1 (el, dir) {
-  el.wrapData = function (code) {
-    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on: on,
-  bind: bind$1,
-  cloak: noop
-};
-
-/*  */
-
-
-
-
-
-var CodegenState = function CodegenState (options) {
-  this.options = options;
-  this.warn = options.warn || baseWarn;
-  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  this.directives = extend(extend({}, baseDirectives), options.directives);
-  var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
-  this.onceId = 0;
-  this.staticRenderFns = [];
-  this.pre = false;
-};
-
-
-
-function generate (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genElement (el, state) {
-  if (el.parent) {
-    el.pre = el.pre || el.parent.pre;
-  }
-
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state)
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state)
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
-    return genChildren(el, state) || 'void 0'
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state)
-  } else {
-    // component or element
-    var code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
-    } else {
-      var data;
-      if (!el.plain || (el.pre && state.maybeComponent(el))) {
-        data = genData$2(el, state);
-      }
-
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
-    }
-    // module transforms
-    for (var i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code
-  }
-}
-
-// hoist static sub-trees out
-function genStatic (el, state) {
-  el.staticProcessed = true;
-  // Some elements (templates) need to behave differently inside of a v-pre
-  // node.  All pre nodes are static roots, so we can use this as a location to
-  // wrap a state change and reset it upon exiting the pre node.
-  var originalPreState = state.pre;
-  if (el.pre) {
-    state.pre = el.pre;
-  }
-  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  state.pre = originalPreState;
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
-}
-
-// v-once
-function genOnce (el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.staticInFor) {
-    var key = '';
-    var parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break
-      }
-      parent = parent.parent;
-    }
-    if (!key) {
-      process.env.NODE_ENV !== 'production' && state.warn(
-        "v-once can only be used inside v-for that is keyed. "
-      );
-      return genElement(el, state)
-    }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
-  } else {
-    return genStatic(el, state)
-  }
-}
-
-function genIf (
-  el,
-  state,
-  altGen,
-  altEmpty
-) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-}
-
-function genIfConditions (
-  conditions,
-  state,
-  altGen,
-  altEmpty
-) {
-  if (!conditions.length) {
-    return altEmpty || '_e()'
-  }
-
-  var condition = conditions.shift();
-  if (condition.exp) {
-    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
-  } else {
-    return ("" + (genTernaryExp(condition.block)))
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp (el) {
-    return altGen
-      ? altGen(el, state)
-      : el.once
-        ? genOnce(el, state)
-        : genElement(el, state)
-  }
-}
-
-function genFor (
-  el,
-  state,
-  altGen,
-  altHelper
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-
-  if (process.env.NODE_ENV !== 'production' &&
-    state.maybeComponent(el) &&
-    el.tag !== 'slot' &&
-    el.tag !== 'template' &&
-    !el.key
-  ) {
-    state.warn(
-      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
-      "v-for should have explicit keys. " +
-      "See https://vuejs.org/guide/list.html#key for more info.",
-      true /* tip */
-    );
-  }
-
-  el.forProcessed = true; // avoid recursion
-  return (altHelper || '_l') + "((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + ((altGen || genElement)(el, state)) +
-    '})'
-}
-
-function genData$2 (el, state) {
-  var data = '{';
-
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el, state);
-  if (dirs) { data += dirs + ','; }
-
-  // key
-  if (el.key) {
-    data += "key:" + (el.key) + ",";
-  }
-  // ref
-  if (el.ref) {
-    data += "ref:" + (el.ref) + ",";
-  }
-  if (el.refInFor) {
-    data += "refInFor:true,";
-  }
-  // pre
-  if (el.pre) {
-    data += "pre:true,";
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += "tag:\"" + (el.tag) + "\",";
-  }
-  // module data generation functions
-  for (var i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
-  }
-  // DOM props
-  if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
-  }
-  // event handlers
-  if (el.events) {
-    data += (genHandlers(el.events, false)) + ",";
-  }
-  if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true)) + ",";
-  }
-  // slot target
-  // only for non-scoped slots
-  if (el.slotTarget && !el.slotScope) {
-    data += "slot:" + (el.slotTarget) + ",";
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
-  }
-  // component v-model
-  if (el.model) {
-    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += inlineTemplate + ",";
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data
-}
-
-function genDirectives (el, state) {
-  var dirs = el.directives;
-  if (!dirs) { return }
-  var res = 'directives:[';
-  var hasRuntime = false;
-  var i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    var gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']'
-  }
-}
-
-function genInlineTemplate (el, state) {
-  var ast = el.children[0];
-  if (process.env.NODE_ENV !== 'production' && (
-    el.children.length !== 1 || ast.type !== 1
-  )) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, state.options);
-    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
-  }
-}
-
-function genScopedSlots (
-  slots,
-  state
-) {
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
-}
-
-function genScopedSlot (
-  key,
-  el,
-  state
-) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
-  }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
-    "return " + (el.tag === 'template'
-      ? el.if
-        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
-      : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
-}
-
-function genChildren (
-  el,
-  state,
-  checkSkip,
-  altGenElement,
-  altGenNode
-) {
-  var children = el.children;
-  if (children.length) {
-    var el$1 = children[0];
-    // optimize single v-for
-    if (children.length === 1 &&
-      el$1.for &&
-      el$1.tag !== 'template' &&
-      el$1.tag !== 'slot'
-    ) {
-      var normalizationType = checkSkip
-        ? state.maybeComponent(el$1) ? ",1" : ",0"
-        : "";
-      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
-    }
-    var normalizationType$1 = checkSkip
-      ? getNormalizationType(children, state.maybeComponent)
-      : 0;
-    var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType (
-  children,
-  maybeComponent
-) {
-  var res = 0;
-  for (var i = 0; i < children.length; i++) {
-    var el = children[i];
-    if (el.type !== 1) {
-      continue
-    }
-    if (needsNormalization(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
-      res = 2;
-      break
-    }
-    if (maybeComponent(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
-      res = 1;
-    }
-  }
-  return res
-}
-
-function needsNormalization (el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-}
-
-function genNode (node, state) {
-  if (node.type === 1) {
-    return genElement(node, state)
-  } else if (node.type === 3 && node.isComment) {
-    return genComment(node)
-  } else {
-    return genText(node)
-  }
-}
-
-function genText (text) {
-  return ("_v(" + (text.type === 2
-    ? text.expression // no need for () because already wrapped in _s()
-    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
-}
-
-function genComment (comment) {
-  return ("_e(" + (JSON.stringify(comment.text)) + ")")
-}
-
-function genSlot (el, state) {
-  var slotName = el.slotName || '"default"';
-  var children = genChildren(el, state);
-  var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
-  var bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += ",null";
-  }
-  if (attrs) {
-    res += "," + attrs;
-  }
-  if (bind$$1) {
-    res += (attrs ? '' : ',null') + "," + bind$$1;
-  }
-  return res + ')'
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (
-  componentName,
-  el,
-  state
-) {
-  var children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
-}
-
-function genProps (props) {
-  var res = '';
-  for (var i = 0; i < props.length; i++) {
-    var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
-    }
-  }
-  return res.slice(0, -1)
-}
-
-// #3895, #4268
-function transformSpecialNewlines (text) {
-  return text
-    .replace(/\u2028/g, '\\u2028')
-    .replace(/\u2029/g, '\\u2029')
-}
-
-/*  */
-
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-var prohibitedKeywordRE = new RegExp('\\b' + (
-  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-  'super,throw,while,yield,delete,export,import,return,switch,default,' +
-  'extends,finally,continue,debugger,function,arguments'
-).split(',').join('\\b|\\b') + '\\b');
-
-// these unary operators should not be used as property/method names
-var unaryOperatorsRE = new RegExp('\\b' + (
-  'delete,typeof,void'
-).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
-
-// strip strings in expressions
-var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
-
-// detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
-  if (ast) {
-    checkNode(ast, errors);
-  }
-  return errors
-}
-
-function checkNode (node, errors) {
-  if (node.type === 1) {
-    for (var name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        var value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
-          } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
-          }
-        }
-      }
-    }
-    if (node.children) {
-      for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
-      }
-    }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
-  }
-}
-
-function checkEvent (exp, text, errors) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
-      "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
-    );
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier (
-  ident,
-  type,
-  text,
-  errors
-) {
-  if (typeof ident === 'string') {
-    try {
-      new Function(("var " + ident + "=_"));
-    } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
-    }
-  }
-}
-
-function checkExpression (exp, text, errors) {
-  try {
-    new Function(("return " + exp));
-  } catch (e) {
-    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push(
-        "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
-      );
-    } else {
-      errors.push(
-        "invalid expression: " + (e.message) + " in\n\n" +
-        "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
-      );
-    }
-  }
-}
-
-/*  */
-
-
-
-function createFunction (code, errors) {
-  try {
-    return new Function(code)
-  } catch (err) {
-    errors.push({ err: err, code: code });
-    return noop
-  }
-}
-
-function createCompileToFunctionFn (compile) {
-  var cache = Object.create(null);
-
-  return function compileToFunctions (
-    template,
-    options,
-    vm
-  ) {
-    options = extend({}, options);
-    var warn$$1 = options.warn || warn;
-    delete options.warn;
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      // detect possible CSP restriction
-      try {
-        new Function('return 1');
-      } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$$1(
-            'It seems you are using the standalone build of Vue.js in an ' +
-            'environment with Content Security Policy that prohibits unsafe-eval. ' +
-            'The template compiler cannot work in this environment. Consider ' +
-            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-            'templates into render functions.'
-          );
-        }
-      }
-    }
-
-    // check cache
-    var key = options.delimiters
-      ? String(options.delimiters) + template
-      : template;
-    if (cache[key]) {
-      return cache[key]
-    }
-
-    // compile
-    var compiled = compile(template, options);
-
-    // check compilation errors/tips
-    if (process.env.NODE_ENV !== 'production') {
-      if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
-        );
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
-      }
-    }
-
-    // turn code into functions
-    var res = {};
-    var fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-      return createFunction(code, fnGenErrors)
-    });
-
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn$$1(
-          "Failed to generate render function:\n\n" +
-          fnGenErrors.map(function (ref) {
-            var err = ref.err;
-            var code = ref.code;
-
-            return ((err.toString()) + " in\n\n" + code + "\n");
-        }).join('\n'),
-          vm
-        );
-      }
-    }
-
-    return (cache[key] = res)
-  }
-}
-
-/*  */
-
-function createCompilerCreator (baseCompile) {
-  return function createCompiler (baseOptions) {
-    function compile (
-      template,
-      options
-    ) {
-      var finalOptions = Object.create(baseOptions);
-      var errors = [];
-      var tips = [];
-      finalOptions.warn = function (msg, tip) {
-        (tip ? tips : errors).push(msg);
-      };
-
-      if (options) {
-        // merge custom modules
-        if (options.modules) {
-          finalOptions.modules =
-            (baseOptions.modules || []).concat(options.modules);
-        }
-        // merge custom directives
-        if (options.directives) {
-          finalOptions.directives = extend(
-            Object.create(baseOptions.directives || null),
-            options.directives
-          );
-        }
-        // copy other options
-        for (var key in options) {
-          if (key !== 'modules' && key !== 'directives') {
-            finalOptions[key] = options[key];
-          }
-        }
-      }
-
-      var compiled = baseCompile(template, finalOptions);
-      if (process.env.NODE_ENV !== 'production') {
-        errors.push.apply(errors, detectErrors(compiled.ast));
-      }
-      compiled.errors = errors;
-      compiled.tips = tips;
-      return compiled
-    }
-
-    return {
-      compile: compile,
-      compileToFunctions: createCompileToFunctionFn(compile)
-    }
-  }
-}
-
-/*  */
-
-// `createCompilerCreator` allows creating compilers that use alternative
-// parser/optimizer/codegen, e.g the SSR optimizing compiler.
-// Here we just export a default compiler using the default parts.
-var createCompiler = createCompilerCreator(function baseCompile (
-  template,
-  options
-) {
-  var ast = parse(template.trim(), options);
-  if (options.optimize !== false) {
-    optimize(ast, options);
-  }
-  var code = generate(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
-  }
-});
-
-/*  */
-
-var ref$1 = createCompiler(baseOptions);
-var compile = ref$1.compile;
-var compileToFunctions = ref$1.compileToFunctions;
-
-/*  */
-
-// check whether current browser encodes a char inside attribute values
-var div;
-function getShouldDecode (href) {
-  div = div || document.createElement('div');
-  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
-  return div.innerHTML.indexOf('&#10;') > 0
-}
-
-// #3663: IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
-// #6828: chrome encodes content in a[href]
-var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
-
-/*  */
-
-var idToTemplate = cached(function (id) {
-  var el = query(id);
-  return el && el.innerHTML
-});
-
-var mount = Vue.prototype.$mount;
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && query(el);
-
-  /* istanbul ignore if */
-  if (el === document.body || el === document.documentElement) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Do not mount Vue to <html> or <body> - mount to normal elements instead."
-    );
-    return this
-  }
-
-  var options = this.$options;
-  // resolve template/el and convert to render function
-  if (!options.render) {
-    var template = options.template;
-    if (template) {
-      if (typeof template === 'string') {
-        if (template.charAt(0) === '#') {
-          template = idToTemplate(template);
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !template) {
-            warn(
-              ("Template element not found or is empty: " + (options.template)),
-              this
-            );
-          }
-        }
-      } else if (template.nodeType) {
-        template = template.innerHTML;
-      } else {
-        if (process.env.NODE_ENV !== 'production') {
-          warn('invalid template option:' + template, this);
-        }
-        return this
-      }
-    } else if (el) {
-      template = getOuterHTML(el);
-    }
-    if (template) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-        mark('compile');
-      }
-
-      var ref = compileToFunctions(template, {
-        shouldDecodeNewlines: shouldDecodeNewlines,
-        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
-        delimiters: options.delimiters,
-        comments: options.comments
-      }, this);
-      var render = ref.render;
-      var staticRenderFns = ref.staticRenderFns;
-      options.render = render;
-      options.staticRenderFns = staticRenderFns;
-
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-        mark('compile end');
-        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
-      }
-    }
-  }
-  return mount.call(this, el, hydrating)
-};
-
-/**
- * Get outerHTML of elements, taking care
- * of SVG elements in IE as well.
- */
-function getOuterHTML (el) {
-  if (el.outerHTML) {
-    return el.outerHTML
-  } else {
-    var container = document.createElement('div');
-    container.appendChild(el.cloneNode(true));
-    return container.innerHTML
-  }
+  module.exports = require('./vue.common.dev.js')
 }
-
-Vue.compile = compileToFunctions;
-
-module.exports = Vue;
diff --git a/dist/vue.min.js b/dist/vue.min.js
index f2aff3ab950..5214b7f4631 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -3,4 +3,4 @@
  * (c) 2014-2018 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function 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diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index a8358a1ebe3..07ddaa2ccba 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,8116 +1,5 @@
-/*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
- * Released under the MIT License.
- */
-'use strict';
-
-/*  */
-
-var emptyObject = Object.freeze({});
-
-// These helpers produce better VM code in JS engines due to their
-// explicitness and function inlining.
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive.
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value, e.g., [object Object].
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert an input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if an attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array.
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether an object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it,
- * e.g., PhantomJS 1.x. Technically, we don't need this anymore
- * since native bind is now performant enough in most browsers.
- * But removing it would mean breaking code that was able to run in
- * PhantomJS 1.x, so this must be kept for backward compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
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-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/* eslint-disable no-unused-vars */
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
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-var no = function (a, b, c) { return false; };
-
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-
-/**
- * Return the same value.
- */
-var identity = function (_) { return _; };
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (a instanceof Date && b instanceof Date) {
-        return a.getTime() === b.getTime()
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}
-
-/**
- * Return the first index at which a loosely equal value can be
- * found in the array (if value is a plain object, the array must
- * contain an object of the same shape), or -1 if it is not present.
- */
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
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-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
-
-  /**
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-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: process.env.NODE_ENV !== 'production',
-
-  /**
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-  devtools: process.env.NODE_ENV !== 'production',
-
-  /**
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-  /**
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-
-  /**
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-
-  /**
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-  /**
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-  isReservedTag: no,
-
-  /**
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-
-  /**
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-   * Platform-dependent.
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-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Perform updates asynchronously. Intended to be used by Vue Test Utils
-   * This will significantly reduce performance if set to false.
-   */
-  async: true,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
-
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
+if (process.env.NODE_ENV === 'production') {
+  module.exports = require('./vue.runtime.common.prod.js')
 } else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = /*@__PURE__*/(function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
-
-if (process.env.NODE_ENV !== 'production') {
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
-
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
-/*  */
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  if (process.env.NODE_ENV !== 'production' && !config.async) {
-    // subs aren't sorted in scheduler if not running async
-    // we need to sort them now to make sure they fire in correct
-    // order
-    subs.sort(function (a, b) { return a.id - b.id; });
-  }
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (target) {
-  targetStack.push(target);
-  Dep.target = target;
-}
-
-function popTarget () {
-  targetStack.pop();
-  Dep.target = targetStack[targetStack.length - 1];
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    // #7975
-    // clone children array to avoid mutating original in case of cloning
-    // a child.
-    vnode.children && vnode.children.slice(),
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-function toggleObserving (value) {
-  shouldObserve = value;
-}
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    if (hasProto) {
-      protoAugment(value, arrayMethods);
-    } else {
-      copyAugment(value, arrayMethods, arrayKeys);
-    }
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through all properties and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment a target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment a target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive$$1 (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if (process.env.NODE_ENV !== 'production' && customSetter) {
-        customSetter();
-      }
-      // #7981: for accessor properties without setter
-      if (getter && !setter) { return }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
-  }
-  defineReactive$$1(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-if (process.env.NODE_ENV !== 'production') {
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (
-      toVal !== fromVal &&
-      isPlainObject(toVal) &&
-      isPlainObject(fromVal)
-    ) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
-    }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
-      }
-    }
-  }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      process.env.NODE_ENV !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  if (process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
-  }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else if (process.env.NODE_ENV !== 'production') {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  
-  // Apply extends and mixins on the child options,
-  // but only if it is a raw options object that isn't
-  // the result of another mergeOptions call.
-  // Only merged options has the _base property.
-  if (!child._base) {
-    if (child.extends) {
-      parent = mergeOptions(parent, child.extends, vm);
-    }
-    if (child.mixins) {
-      for (var i = 0, l = child.mixins.length; i < l; i++) {
-        parent = mergeOptions(parent, child.mixins[i], vm);
-      }
-    }
-  }
-
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  if (
-    process.env.NODE_ENV !== 'production' &&
-    // skip validation for weex recycle-list child component props
-    !(false)
-  ) {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if (process.env.NODE_ENV !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-
-  if (!valid) {
-    warn(
-      getInvalidTypeMessage(name, value, expectedTypes),
-      vm
-    );
-    return
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
-  }
-}
-
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
-
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
-
-function getInvalidTypeMessage (name, value, expectedTypes) {
-  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
-    " Expected " + (expectedTypes.map(capitalize).join(', '));
-  var expectedType = expectedTypes[0];
-  var receivedType = toRawType(value);
-  var expectedValue = styleValue(value, expectedType);
-  var receivedValue = styleValue(value, receivedType);
-  // check if we need to specify expected value
-  if (expectedTypes.length === 1 &&
-      isExplicable(expectedType) &&
-      !isBoolean(expectedType, receivedType)) {
-    message += " with value " + expectedValue;
-  }
-  message += ", got " + receivedType + " ";
-  // check if we need to specify received value
-  if (isExplicable(receivedType)) {
-    message += "with value " + receivedValue + ".";
-  }
-  return message
-}
-
-function styleValue (value, type) {
-  if (type === 'String') {
-    return ("\"" + value + "\"")
-  } else if (type === 'Number') {
-    return ("" + (Number(value)))
-  } else {
-    return ("" + value)
-  }
-}
-
-function isExplicable (value) {
-  var explicitTypes = ['string', 'number', 'boolean'];
-  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
-}
-
-function isBoolean () {
-  var args = [], len = arguments.length;
-  while ( len-- ) args[ len ] = arguments[ len ];
-
-  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;    
-    }
-  })
-}
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
-/*  */
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-var initProxy;
-
-if (process.env.NODE_ENV !== 'production') {
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
-
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
-
-  var warnReservedPrefix = function (target, key) {
-    warn(
-      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
-      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
-      'See: https://vuejs.org/v2/api/#data',
-      target
-    );
-  };
-
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
-      }
-    });
-  }
-
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) ||
-        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
-      if (!has && !isAllowed) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-var seenObjects = new _Set();
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
-var mark;
-var measure;
-
-if (process.env.NODE_ENV !== 'production') {
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  createOnceHandler,
-  vm
-) {
-  var name, def$$1, cur, old, event;
-  for (name in on) {
-    def$$1 = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      if (isTrue(event.once)) {
-        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
-      }
-      add(event.name, cur, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  var invoker;
-  var oldHook = def[hookKey];
-
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      if (process.env.NODE_ENV !== 'production') {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res
-}
-
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      }
-    });
-
-    var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                process.env.NODE_ENV !== 'production'
-                  ? ("timeout (" + (res.timeout) + "ms)")
-                  : null
-              );
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
-  }
-}
-
-/*  */
-
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
-/*  */
-
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    if (process.env.NODE_ENV !== 'production') {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
-      }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
-      }
-    }
-    return vm
-  };
-}
-
-/*  */
-
-
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
-  }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
-}
-
-function initLifecycle (vm) {
-  var options = vm.$options;
-
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    if (process.env.NODE_ENV !== 'production') {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
-      }
-    }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
-
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
-  }
-  return false
-}
-
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
-
-/*  */
-
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (process.env.NODE_ENV !== 'production' && !config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-
-
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
-    }
-    this.active = false;
-  }
-};
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
-      }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    } else {
-      defineReactive$$1(props, key, value);
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
-
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    process.env.NODE_ENV !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
-
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production' && getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else if (process.env.NODE_ENV !== 'production') {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
-  }
-}
-
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
-}
-
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
-      }
-    }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
-
-/*  */
-
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
-
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      } else {
-        defineReactive$$1(vm, key, result[key]);
-      }
-    });
-    toggleObserving(true);
-  }
-}
-
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else if (process.env.NODE_ENV !== 'production') {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
-    }
-    return result
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
-  }
-
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  var vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-    }
-    return res
-  }
-}
-
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (process.env.NODE_ENV !== 'production') {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
-  } else {
-    on[event] = callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
-    }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
-  }
-}
-
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
-
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-var uid$3 = 0;
-
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
-    }
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      initProxy(vm);
-    } else {
-      vm._renderProxy = vm;
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified
-}
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
-function Vue (options) {
-  if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
-
-/*  */
-
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
-
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
-
-/*  */
-
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
-
-/*  */
-
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
-
-    var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production' && name) {
-      validateComponentName(name);
-    }
-
-    var Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
-
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
-
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production' && type === 'component') {
-          validateComponentName(id);
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
-    };
-  });
-}
-
-/*  */
-
-
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-
-  destroyed: function destroyed () {
-    for (var key in this.cache) {
-      pruneCacheEntry(this.cache, key, this.keys);
-    }
-  },
-
-  mounted: function mounted () {
-    var this$1 = this;
-
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
-
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-};
-
-var builtInComponents = {
-  KeepAlive: KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  if (process.env.NODE_ENV !== 'production') {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue);
-
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
-  }
-});
-
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.21';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-var xlinkNS = 'http://www.w3.org/1999/xlink';
-
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
-
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
-
-/*  */
-
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class)
-}
-
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
-
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
-  }
-  if (isReservedTag(tag)) {
-    return false
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-  }
-}
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
-  }
-}
-
-/*  */
-
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-var nodeOps = /*#__PURE__*/Object.freeze({
-  createElement: createElement$1,
-  createElementNS: createElementNS,
-  createTextNode: createTextNode,
-  createComment: createComment,
-  insertBefore: insertBefore,
-  removeChild: removeChild,
-  appendChild: appendChild,
-  parentNode: parentNode,
-  nextSibling: nextSibling,
-  tagName: tagName,
-  setTextContent: setTextContent,
-  setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
-
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
-
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
-
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
-  }
-  return map
-}
-
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
-
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
-
-  function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove$$1.listeners = listeners;
-    return remove$$1
-  }
-
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
-
-  var creatingElmInVPre = 0;
-
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
-
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
-      }
-    }
-  }
-
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (nodeOps.parentNode(ref$$1) === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      if (process.env.NODE_ENV !== 'production') {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
-    }
-  }
-
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag)
-  }
-
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
-        }
-        ancestor = ancestor.parent;
-      }
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
-
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
-
-    if (process.env.NODE_ENV !== 'production') {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
-        }
-      }
-    }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
-  }
-
-  function patchVnode (
-    oldVnode,
-    vnode,
-    insertedVnodeQueue,
-    ownerArray,
-    index,
-    removeOnly
-  ) {
-    if (oldVnode === vnode) {
-      return
-    }
-
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // clone reused vnode
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    var elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
-
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        if (process.env.NODE_ENV !== 'production') {
-          checkDuplicateKeys(ch);
-        }
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
-    }
-  }
-
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
-            }
-          }
-        }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true
-  }
-
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
-    }
-  }
-
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
-      return
-    }
-
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else if (process.env.NODE_ENV !== 'production') {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
-
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
-
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-            ancestor = ancestor.parent;
-          }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
-  }
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  // $flow-disable-line
-  return res
-}
-
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
-
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
-    }
-  }
-}
-
-var baseModules = [
-  ref,
-  directives
-];
-
-/*  */
-
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    baseSetAttr(el, key, value);
-  }
-}
-
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-    /* istanbul ignore if */
-    if (
-      isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
-    ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
-    }
-    el.setAttribute(key, value);
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler$1 (event, handler, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
-    }
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res
-}
-
-/*  */
-
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-var vendorNames = ['Webkit', 'Moz', 'ms'];
-
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
-
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
-  }
-
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
-
-  var style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
-
-  var newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-var whitespaceRE = /\s+/;
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition (def$$1) {
-  if (!def$$1) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
-    var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
-    }
-    extend(res, def$$1);
-    return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
-
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  // JSDOM may return undefined for transition properties
-  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
-  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
-  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
-// in a locale-dependent way, using a comma instead of a dot.
-// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
-// as a floor function) causing unexpected behaviors
-function toMs (s) {
-  return Number(s.slice(0, -1).replace(',', '.')) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
-
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave (vnode, rm) {
-  var el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show && el.parentNode) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
-            }
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
-
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
-
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: directive,
-  show: show
-};
-
-/*  */
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
-
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data
-}
-
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
-
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
-  }
-}
-
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
-
-var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
-
-var isVShowDirective = function (d) { return d.name === 'show'; };
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render: function render (h) {
-    var this$1 = this;
-
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(isNotTextNode);
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
-
-    // warn multiple elements
-    if (process.env.NODE_ENV !== 'production' && children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
-
-    var mode = this.mode;
-
-    // warn invalid mode
-    if (process.env.NODE_ENV !== 'production' &&
-      mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
-
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
-
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
-      child.data.show = true;
-    }
-
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
-      }
-    }
-
-    return rawChild
-  }
-};
-
-/*  */
-
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props: props,
-
-  beforeMount: function beforeMount () {
-    var this$1 = this;
-
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      var restoreActiveInstance = setActiveInstance(this$1);
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      restoreActiveInstance();
-      update.call(this$1, vnode, hydrating);
-    };
-  },
-
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else if (process.env.NODE_ENV !== 'production') {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
-        }
-      }
-    }
-
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children)
-  },
-
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (e && e.target !== el) {
-            return
-          }
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
-    }
-  }
-};
-
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        process.env.NODE_ENV !== 'production' &&
-        process.env.NODE_ENV !== 'test' &&
-        isChrome
-      ) {
-        console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
-        );
-      }
-    }
-    if (process.env.NODE_ENV !== 'production' &&
-      process.env.NODE_ENV !== 'test' &&
-      config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
+  module.exports = require('./vue.runtime.common.dev.js')
 }
-
-/*  */
-
-module.exports = Vue;
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.dev.js
similarity index 98%
rename from packages/vue-server-renderer/build.js
rename to packages/vue-server-renderer/build.dev.js
index fc072297dbe..ee696ab5d7c 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -733,12 +733,12 @@ var config = ({
   /**
    * Show production mode tip message on boot?
    */
-  productionTip: process.env.NODE_ENV !== 'production',
+  productionTip: "development" !== 'production',
 
   /**
    * Whether to enable devtools
    */
-  devtools: process.env.NODE_ENV !== 'production',
+  devtools: "development" !== 'production',
 
   /**
    * Whether to record perf
@@ -819,7 +819,7 @@ var tip = noop;
 var generateComponentTrace = (noop); // work around flow check
 var formatComponentName = (noop);
 
-if (process.env.NODE_ENV !== 'production') {
+{
   var hasConsole = typeof console !== 'undefined';
   var classifyRE = /(?:^|[-_])(\w)/g;
   var classify = function (str) { return str
@@ -934,12 +934,6 @@ Dep.prototype.depend = function depend () {
 Dep.prototype.notify = function notify () {
   // stabilize the subscriber list first
   var subs = this.subs.slice();
-  if (process.env.NODE_ENV !== 'production' && !config.async) {
-    // subs aren't sorted in scheduler if not running async
-    // we need to sort them now to make sure they fire in correct
-    // order
-    subs.sort(function (a, b) { return a.id - b.id; });
-  }
   for (var i = 0, l = subs.length; i < l; i++) {
     subs[i].update();
   }
@@ -1165,7 +1159,7 @@ function defineReactive$$1 (
         return
       }
       /* eslint-enable no-self-compare */
-      if (process.env.NODE_ENV !== 'production' && customSetter) {
+      if (customSetter) {
         customSetter();
       }
       // #7981: for accessor properties without setter
@@ -1187,8 +1181,7 @@ function defineReactive$$1 (
  * already exist.
  */
 function set (target, key, val) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
+  if (isUndef(target) || isPrimitive(target)
   ) {
     warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
   }
@@ -1203,7 +1196,7 @@ function set (target, key, val) {
   }
   var ob = (target).__ob__;
   if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
+    warn(
       'Avoid adding reactive properties to a Vue instance or its root $data ' +
       'at runtime - declare it upfront in the data option.'
     );
@@ -1244,7 +1237,7 @@ var strats = config.optionMergeStrategies;
 /**
  * Options with restrictions
  */
-if (process.env.NODE_ENV !== 'production') {
+{
   strats.el = strats.propsData = function (parent, child, vm, key) {
     if (!vm) {
       warn(
@@ -1332,7 +1325,7 @@ strats.data = function (
 ) {
   if (!vm) {
     if (childVal && typeof childVal !== 'function') {
-      process.env.NODE_ENV !== 'production' && warn(
+      warn(
         'The "data" option should be a function ' +
         'that returns a per-instance value in component ' +
         'definitions.',
@@ -1382,7 +1375,7 @@ function mergeAssets (
 ) {
   var res = Object.create(parentVal || null);
   if (childVal) {
-    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
+    assertObjectType(key, childVal, vm);
     return extend(res, childVal)
   } else {
     return res
@@ -1410,7 +1403,7 @@ strats.watch = function (
   if (childVal === nativeWatch) { childVal = undefined; }
   /* istanbul ignore if */
   if (!childVal) { return Object.create(parentVal || null) }
-  if (process.env.NODE_ENV !== 'production') {
+  {
     assertObjectType(key, childVal, vm);
   }
   if (!parentVal) { return childVal }
@@ -1441,7 +1434,7 @@ strats.computed = function (
   vm,
   key
 ) {
-  if (childVal && process.env.NODE_ENV !== 'production') {
+  if (childVal && "development" !== 'production') {
     assertObjectType(key, childVal, vm);
   }
   if (!parentVal) { return childVal }
@@ -1502,7 +1495,7 @@ function normalizeProps (options, vm) {
       if (typeof val === 'string') {
         name = camelize(val);
         res[name] = { type: null };
-      } else if (process.env.NODE_ENV !== 'production') {
+      } else {
         warn('props must be strings when using array syntax.');
       }
     }
@@ -1514,7 +1507,7 @@ function normalizeProps (options, vm) {
         ? val
         : { type: val };
     }
-  } else if (process.env.NODE_ENV !== 'production') {
+  } else {
     warn(
       "Invalid value for option \"props\": expected an Array or an Object, " +
       "but got " + (toRawType(props)) + ".",
@@ -1542,7 +1535,7 @@ function normalizeInject (options, vm) {
         ? extend({ from: key }, val)
         : { from: val };
     }
-  } else if (process.env.NODE_ENV !== 'production') {
+  } else {
     warn(
       "Invalid value for option \"inject\": expected an Array or an Object, " +
       "but got " + (toRawType(inject)) + ".",
@@ -1585,7 +1578,7 @@ function mergeOptions (
   child,
   vm
 ) {
-  if (process.env.NODE_ENV !== 'production') {
+  {
     checkComponents(child);
   }
 
@@ -1653,7 +1646,7 @@ function resolveAsset (
   if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
   // fallback to prototype chain
   var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
+  if (warnMissing && !res) {
     warn(
       'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
       options
@@ -1699,11 +1692,7 @@ function validateProp (
     observe(value);
     toggleObserving(prevShouldObserve);
   }
-  if (
-    process.env.NODE_ENV !== 'production' &&
-    // skip validation for weex recycle-list child component props
-    !(false)
-  ) {
+  {
     assertProp(prop, key, value, vm, absent);
   }
   return value
@@ -1719,7 +1708,7 @@ function getPropDefaultValue (vm, prop, key) {
   }
   var def = prop.default;
   // warn against non-factory defaults for Object & Array
-  if (process.env.NODE_ENV !== 'production' && isObject(def)) {
+  if (isObject(def)) {
     warn(
       'Invalid default value for prop "' + key + '": ' +
       'Props with type Object/Array must use a factory function ' +
@@ -1915,7 +1904,7 @@ function globalHandleError (err, vm, info) {
 }
 
 function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
+  {
     warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
   }
   /* istanbul ignore else */
@@ -2719,7 +2708,7 @@ function addHandler (
   // warn prevent and passive modifier
   /* istanbul ignore if */
   if (
-    process.env.NODE_ENV !== 'production' && warn &&
+    warn &&
     modifiers.prevent && modifiers.passive
   ) {
     warn(
@@ -2831,7 +2820,7 @@ function getAndRemoveAttr (
 function transformNode (el, options) {
   var warn = options.warn || baseWarn;
   var staticClass = getAndRemoveAttr(el, 'class');
-  if (process.env.NODE_ENV !== 'production' && staticClass) {
+  if (staticClass) {
     var res = parseText(staticClass, options.delimiters);
     if (res) {
       warn(
@@ -2875,7 +2864,7 @@ function transformNode$1 (el, options) {
   var staticStyle = getAndRemoveAttr(el, 'style');
   if (staticStyle) {
     /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
+    {
       var res = parseText(staticStyle, options.delimiters);
       if (res) {
         warn(
@@ -3070,7 +3059,7 @@ function parseHTML (html, options) {
 
     if (html === last) {
       options.chars && options.chars(html);
-      if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
+      if (!stack.length && options.warn) {
         options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
       }
       break
@@ -3168,8 +3157,7 @@ function parseHTML (html, options) {
     if (pos >= 0) {
       // Close all the open elements, up the stack
       for (var i = stack.length - 1; i >= pos; i--) {
-        if (process.env.NODE_ENV !== 'production' &&
-          (i > pos || !tagName) &&
+        if (i > pos || !tagName &&
           options.warn
         ) {
           options.warn(
@@ -3462,7 +3450,7 @@ function parse (
 
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true;
-        process.env.NODE_ENV !== 'production' && warn$1(
+        warn$1(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
           "<" + tag + ">" + ', as they will not be parsed.'
@@ -3495,7 +3483,7 @@ function parse (
       }
 
       function checkRootConstraints (el) {
-        if (process.env.NODE_ENV !== 'production') {
+        {
           if (el.tag === 'slot' || el.tag === 'template') {
             warnOnce(
               "Cannot use <" + (el.tag) + "> as component root element because it may " +
@@ -3523,7 +3511,7 @@ function parse (
             exp: element.elseif,
             block: element
           });
-        } else if (process.env.NODE_ENV !== 'production') {
+        } else {
           warnOnce(
             "Component template should contain exactly one root element. " +
             "If you are using v-if on multiple elements, " +
@@ -3566,7 +3554,7 @@ function parse (
 
     chars: function chars (text) {
       if (!currentParent) {
-        if (process.env.NODE_ENV !== 'production') {
+        {
           if (text === template) {
             warnOnce(
               'Component template requires a root element, rather than just text.'
@@ -3661,7 +3649,7 @@ function processElement (element, options) {
 function processKey (el) {
   var exp = getBindingAttr(el, 'key');
   if (exp) {
-    if (process.env.NODE_ENV !== 'production') {
+    {
       if (el.tag === 'template') {
         warn$1("<template> cannot be keyed. Place the key on real elements instead.");
       }
@@ -3694,7 +3682,7 @@ function processFor (el) {
     var res = parseFor(exp);
     if (res) {
       extend(el, res);
-    } else if (process.env.NODE_ENV !== 'production') {
+    } else {
       warn$1(
         ("Invalid v-for expression: " + exp)
       );
@@ -3749,7 +3737,7 @@ function processIfConditions (el, parent) {
       exp: el.elseif,
       block: el
     });
-  } else if (process.env.NODE_ENV !== 'production') {
+  } else {
     warn$1(
       "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
       "used on element <" + (el.tag) + "> without corresponding v-if."
@@ -3763,7 +3751,7 @@ function findPrevElement (children) {
     if (children[i].type === 1) {
       return children[i]
     } else {
-      if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
+      if (children[i].text !== ' ') {
         warn$1(
           "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
           "will be ignored."
@@ -3791,7 +3779,7 @@ function processOnce (el) {
 function processSlot (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name');
-    if (process.env.NODE_ENV !== 'production' && el.key) {
+    if (el.key) {
       warn$1(
         "`key` does not work on <slot> because slots are abstract outlets " +
         "and can possibly expand into multiple elements. " +
@@ -3803,7 +3791,7 @@ function processSlot (el) {
     if (el.tag === 'template') {
       slotScope = getAndRemoveAttr(el, 'scope');
       /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && slotScope) {
+      if (slotScope) {
         warn$1(
           "the \"scope\" attribute for scoped slots have been deprecated and " +
           "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
@@ -3815,7 +3803,7 @@ function processSlot (el) {
       el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
       /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+      if (el.attrsMap['v-for']) {
         warn$1(
           "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
           "(v-for takes higher priority). Use a wrapper <template> for the " +
@@ -3866,7 +3854,6 @@ function processAttrs (el) {
         value = parseFilters(value);
         isProp = false;
         if (
-          process.env.NODE_ENV !== 'production' &&
           value.trim().length === 0
         ) {
           warn$1(
@@ -3909,13 +3896,13 @@ function processAttrs (el) {
           name = name.slice(0, -(arg.length + 1));
         }
         addDirective(el, name, rawName, value, arg, modifiers);
-        if (process.env.NODE_ENV !== 'production' && name === 'model') {
+        if (name === 'model') {
           checkForAliasModel(el, value);
         }
       }
     } else {
       // literal attribute
-      if (process.env.NODE_ENV !== 'production') {
+      {
         var res = parseText(value, delimiters);
         if (res) {
           warn$1(
@@ -3962,7 +3949,6 @@ function makeAttrsMap (attrs) {
   var map = {};
   for (var i = 0, l = attrs.length; i < l; i++) {
     if (
-      process.env.NODE_ENV !== 'production' &&
       map[attrs[i].name] && !isIE && !isEdge
     ) {
       warn$1('duplicate attribute: ' + attrs[i].name);
@@ -4116,7 +4102,7 @@ function model$2 (
   var tag = el.tag;
   var type = el.attrsMap.type;
 
-  if (process.env.NODE_ENV !== 'production') {
+  {
     // inputs with type="file" are read only and setting the input's
     // value will throw an error.
     if (tag === 'input' && type === 'file') {
@@ -4218,7 +4204,7 @@ function genDefaultModel (
 
   // warn if v-bind:value conflicts with v-model
   // except for inputs with v-bind:type
-  if (process.env.NODE_ENV !== 'production') {
+  {
     var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
     var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
     if (value$1 && !typeBinding) {
@@ -4445,7 +4431,7 @@ function genFilterCode (key) {
 /*  */
 
 function on (el, dir) {
-  if (process.env.NODE_ENV !== 'production' && dir.modifiers) {
+  if (dir.modifiers) {
     warn("v-on without argument does not support modifiers.");
   }
   el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
@@ -4570,7 +4556,7 @@ function genOnce (el, state) {
       parent = parent.parent;
     }
     if (!key) {
-      process.env.NODE_ENV !== 'production' && state.warn(
+      state.warn(
         "v-once can only be used inside v-for that is keyed. "
       );
       return genElement(el, state)
@@ -4629,8 +4615,7 @@ function genFor (
   var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
   var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
 
-  if (process.env.NODE_ENV !== 'production' &&
-    state.maybeComponent(el) &&
+  if (state.maybeComponent(el) &&
     el.tag !== 'slot' &&
     el.tag !== 'template' &&
     !el.key
@@ -4755,9 +4740,7 @@ function genDirectives (el, state) {
 
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
-  if (process.env.NODE_ENV !== 'production' && (
-    el.children.length !== 1 || ast.type !== 1
-  )) {
+  if (el.children.length !== 1 || ast.type !== 1) {
     state.warn('Inline-template components must have exactly one child element.');
   }
   if (ast.type === 1) {
@@ -5536,7 +5519,7 @@ function createCompileToFunctionFn (compile) {
     delete options.warn;
 
     /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
+    {
       // detect possible CSP restriction
       try {
         new Function('return 1');
@@ -5565,7 +5548,7 @@ function createCompileToFunctionFn (compile) {
     var compiled = compile(template, options);
 
     // check compilation errors/tips
-    if (process.env.NODE_ENV !== 'production') {
+    {
       if (compiled.errors && compiled.errors.length) {
         warn$$1(
           "Error compiling template:\n\n" + template + "\n\n" +
@@ -5590,7 +5573,7 @@ function createCompileToFunctionFn (compile) {
     // this should only happen if there is a bug in the compiler itself.
     // mostly for codegen development use
     /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
+    {
       if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
         warn$$1(
           "Failed to generate render function:\n\n" +
@@ -5646,7 +5629,7 @@ function createCompilerCreator (baseCompile) {
       }
 
       var compiled = baseCompile(template, finalOptions);
-      if (process.env.NODE_ENV !== 'production') {
+      {
         errors.push.apply(errors, detectErrors(compiled.ast));
       }
       compiled.errors = errors;
@@ -5895,7 +5878,7 @@ function renderSSRStyle (
 
 /* not type checking this file because flow doesn't play well with Proxy */
 
-if (process.env.NODE_ENV !== 'production') {
+{
   var allowedGlobals = makeMap(
     'Infinity,undefined,NaN,isFinite,isNaN,' +
     'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
@@ -5959,7 +5942,7 @@ function _traverse (val, seen) {
   }
 }
 
-if (process.env.NODE_ENV !== 'production') {
+{
   var perf = inBrowser && window.performance;
   /* istanbul ignore if */
   if (
@@ -6021,7 +6004,7 @@ function updateListeners (
     old = oldOn[name];
     event = normalizeEvent(name);
     if (isUndef(cur)) {
-      process.env.NODE_ENV !== 'production' && warn(
+      warn(
         "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
         vm
       );
@@ -6068,7 +6051,7 @@ function extractPropsFromVNodeData (
   if (isDef(attrs) || isDef(props)) {
     for (var key in propOptions) {
       var altKey = hyphenate(key);
-      if (process.env.NODE_ENV !== 'production') {
+      {
         var keyInLowerCase = key.toLowerCase();
         if (
           key !== keyInLowerCase &&
@@ -6188,7 +6171,7 @@ function resolveAsyncComponent (
     });
 
     var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn(
+      warn(
         "Failed to resolve async component: " + (String(factory)) +
         (reason ? ("\nReason: " + reason) : '')
       );
@@ -6231,9 +6214,7 @@ function resolveAsyncComponent (
           setTimeout(function () {
             if (isUndef(factory.resolved)) {
               reject(
-                process.env.NODE_ENV !== 'production'
-                  ? ("timeout (" + (res.timeout) + "ms)")
-                  : null
+                "timeout (" + (res.timeout) + "ms)"
               );
             }
           }, res.timeout);
@@ -6364,7 +6345,6 @@ function updateChildComponent (
   parentVnode,
   renderChildren
 ) {
-  if (process.env.NODE_ENV !== 'production') ;
 
   // determine whether component has slot children
   // we need to do this before overwriting $options._renderChildren
@@ -6415,8 +6395,6 @@ function updateChildComponent (
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
     vm.$forceUpdate();
   }
-
-  if (process.env.NODE_ENV !== 'production') ;
 }
 
 function isInInactiveTree (vm) {
@@ -6529,7 +6507,7 @@ function _createElement (
   normalizationType
 ) {
   if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
+    warn(
       "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
       'Always create fresh vnode data objects in each render!',
       context
@@ -6545,8 +6523,7 @@ function _createElement (
     return createEmptyVNode()
   }
   // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
   ) {
     {
       warn(
@@ -6681,7 +6658,7 @@ function renderSlot (
   if (scopedSlotFn) { // scoped slot
     props = props || {};
     if (bindObject) {
-      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+      if (!isObject(bindObject)) {
         warn(
           'slot v-bind without argument expects an Object',
           this
@@ -6757,7 +6734,7 @@ function bindObjectProps (
 ) {
   if (value) {
     if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
+      warn(
         'v-bind without argument expects an Object or Array value',
         this
       );
@@ -6864,7 +6841,7 @@ function markStaticNode (node, key, isOnce) {
 function bindObjectListeners (data, value) {
   if (value) {
     if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
+      warn(
         'v-on without argument expects an Object value',
         this
       );
@@ -6932,7 +6909,7 @@ function resolveInject (inject, vm) {
           result[key] = typeof provideDefault === 'function'
             ? provideDefault.call(vm)
             : provideDefault;
-        } else if (process.env.NODE_ENV !== 'production') {
+        } else {
           warn(("Injection \"" + key + "\" not found"), vm);
         }
       }
@@ -7109,7 +7086,7 @@ function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderCo
   var clone = cloneVNode(vnode);
   clone.fnContext = contextVm;
   clone.fnOptions = options;
-  if (process.env.NODE_ENV !== 'production') {
+  {
     (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
   }
   if (data.slot) {
@@ -7220,7 +7197,7 @@ function createComponent (
   // if at this stage it's not a constructor or an async component factory,
   // reject.
   if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
+    {
       warn(("Invalid Component definition: " + (String(Ctor))), context);
     }
     return
@@ -8126,9 +8103,7 @@ TemplateRenderer.prototype.renderState = function renderState (context, options)
     var contextKey = ref.contextKey; if ( contextKey === void 0 ) contextKey = 'state';
     var windowKey = ref.windowKey; if ( windowKey === void 0 ) windowKey = '__INITIAL_STATE__';
   var state = serialize(context[contextKey], { isJSON: true });
-  var autoRemove = process.env.NODE_ENV === 'production'
-    ? ';(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
-    : '';
+  var autoRemove = '';
   return context[contextKey]
     ? ("<script>window." + windowKey + "=" + state + autoRemove + "</script>")
     : ''
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
new file mode 100644
index 00000000000..5cabfe6b407
--- /dev/null
+++ b/packages/vue-server-renderer/build.prod.js
@@ -0,0 +1 @@
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e,t=(e=require("he"))&&"object"==typeof e&&"default"in e?e.default:e,r=Object.freeze({});function n(e){return null==e}function i(e){return null!=e}function o(e){return!0===e}function a(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function s(e){return null!==e&&"object"==typeof e}var c=Object.prototype.toString;function u(e){return"[object Object]"===c.call(e)}function f(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var r=Object.create(null),n=e.split(","),i=0;i<n.length;i++)r[n[i]]=!0;return t?function(e){return r[e.toLowerCase()]}:function(e){return r[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");var h=Object.prototype.hasOwnProperty;function m(e,t){return h.call(e,t)}function y(e){var t=Object.create(null);return function(r){return 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Ai(e,t,r){var n=r.activeInstance;e.ssrContext=r.userContext;var i=r.activeInstance=mi(e,r.activeInstance);xi(i);var o=i._render();o.parent=e,r.renderStates.push({type:"Component",prevActive:n}),wi(o,t,r)}function ki(e,t,r,n){return function(i,o,a,s){gi=Object.create(null);var c=new ut({activeInstance:i,userContext:a,write:o,done:s,renderNode:wi,isUnaryTag:r,modules:e,directives:t,cache:n});!function(e){if(!e._ssrNode){for(var t=e.constructor;t.super;)t=t.super;S(t.prototype,jn),t.FunctionalRenderContext&&S(t.FunctionalRenderContext.prototype,jn)}}(i),xi(i),wi(i._render(),!0,c)}}var Ci=function(e){return/\.js(\?[^.]+)?$/.test(e)};function Ti(){var e,t;return{promise:new Promise(function(r,n){e=r,t=n}),cb:function(r,n){if(r)return t(r);e(n||"")}}}var ji=function(e){function t(t,r,n){e.call(this),this.started=!1,this.renderer=t,this.template=r,this.context=n||{},this.inject=t.inject}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype._transform=function(e,t,r){this.started||(this.emit("beforeStart"),this.start()),this.push(e),r()},t.prototype.start=function(){if(this.started=!0,this.push(this.template.head(this.context)),this.inject){this.context.head&&this.push(this.context.head);var e=this.renderer.renderResourceHints(this.context);e&&this.push(e);var t=this.renderer.renderStyles(this.context);t&&this.push(t)}this.push(this.template.neck(this.context))},t.prototype._flush=function(e){if(this.emit("beforeEnd"),this.inject){var t=this.renderer.renderState(this.context);t&&this.push(t);var r=this.renderer.renderScripts(this.context);r&&this.push(r)}this.push(this.template.tail(this.context)),e()},t}(require("stream").Transform),Pi=require("lodash.template"),Fi={escape:/{{([^{][\s\S]+?[^}])}}/g,interpolate:/{{{([\s\S]+?)}}}/g};function Ni(e){var t=function(e){var t=new Map;return Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.js($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var Ei=require("path"),Li=require("serialize-javascript"),Ii=function(e){if(this.options=e,this.inject=!1!==e.inject,this.parsedTemplate=e.template?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:Pi(e.slice(0,r),Fi),neck:Pi(e.slice(r,n),Fi),tail:Pi(e.slice(n+t.length),Fi)}}(e.template):null,e.clientManifest){var t=this.clientManifest=e.clientManifest;this.publicPath=t.publicPath,this.preloadFiles=(t.initial||[]).map(Mi),this.prefetchFiles=(t.async||[]).map(Mi),this.mapFiles=Ni(t)}};function Mi(e){var t,r=e.replace(/\?.*/,""),n=Ei.extname(r).slice(1);return{file:e,extension:n,fileWithoutQuery:r,asType:(t=n,"js"===t?"script":"css"===t?"style":/jpe?g|png|svg|gif|webp|ico/.test(t)?"image":/woff2?|ttf|otf|eot/.test(t)?"font":"")}}Ii.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},Ii.prototype.renderSync=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("renderSync cannot be called without a template.");return t=t||{},this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},Ii.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.getPublicPath(r)+'">'}).join(""):"")+(e.styles||"")},Ii.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},Ii.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},Ii.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.getPublicPath(r)+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},Ii.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.getPublicPath(i)+'">'}).join("")}return""},Ii.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=Li(e[n],{isJSON:!0});return e[n]?"<script>window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},Ii.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return Ci(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return Ci(t)});return[r[0]].concat(n||[],r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.getPublicPath(r)+'" defer><\/script>'}).join("")}return""},Ii.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(Mi)}return e._mappedFiles},Ii.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new ji(this,this.parsedTemplate,e||{})},Ii.prototype.getPublicPath=function(e){return Ei.posix.join(this.publicPath,e)};var Ri=require("vm"),Ui=require("path"),Di=require("resolve"),Bi=require("module");function qi(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function zi(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=Bi.wrap(r),o=new Ri.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),f={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(f.exports,f.exports,function(r){return r=Ui.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=Di.sync(r,{basedir:t}))):require(r)},f);var l=Object.prototype.hasOwnProperty.call(f.exports,"default")?f.exports.default:f.exports;return c[a]=l,l}}function Ji(e,t,r,n){var i,o,a=zi(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,qi(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?qi():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var Hi=require("source-map").SourceMapConsumer,Ki=/\(([^)]+\.js):(\d+):(\d+)\)$/;function Vi(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(Ki),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(Ki,c)}return e}return e}(e,t)}).join("\n"))}var Wi=require("fs"),Xi=require("path"),Gi=require("stream").PassThrough,Zi="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function Qi(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,f=ki(t,r,n,a),l=new Ii({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&l.bindRenderFns(t),r||(o=(n=Ti()).promise,r=n.cb);var a="",s=st(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){i&&(a=l.renderSync(a,t)),e?r(e):r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&l.bindRenderFns(t);var r=new ct(function(r,n){f(e,r,t,n)});if(i){var n=l.createStream(t);return r.on("error",function(e){n.emit("error",e)}),r.pipe(n),n}return r}}}(S(S({},e),{isUnaryTag:tt,canBeLeftOpenTag:rt,modules:Ze,directives:S(et,e.directives)}))}process.env.VUE_ENV="server";var Yi=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&Xi.isAbsolute(t)){if(!Wi.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||Xi.dirname(t),t=Wi.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new Hi(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(Zi)}else{if("string"!=typeof t)throw new Error(Zi);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=Ji(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=Ti()).promise,t=r.cb),u(e).catch(function(e){Vi(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){Vi(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Gi;return u(e).catch(function(e){Vi(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){Vi(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(Qi);exports.createRenderer=Qi,exports.createBundleRenderer=Yi;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/index.js b/packages/vue-server-renderer/index.js
index 4a8ddd87f5f..b42ea8fa1f6 100644
--- a/packages/vue-server-renderer/index.js
+++ b/packages/vue-server-renderer/index.js
@@ -13,4 +13,8 @@ if (vueVersion && vueVersion !== packageVersion) {
   )
 }
 
-module.exports = require('./build')
+if (process.env.NODE_ENV === 'production') {
+  module.exports = require('./build.prod.js')
+} else {
+  module.exports = require('./build.dev.js')
+}
diff --git a/scripts/build.js b/scripts/build.js
index 9d0e81e4a68..8d63c1eebfe 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -43,12 +43,13 @@ function build (builds) {
 function buildEntry (config) {
   const output = config.output
   const { file, banner } = output
-  const isProd = /min\.js$/.test(file)
+  const isProd = /(min|prod)\.js$/.test(file)
   return rollup.rollup(config)
     .then(bundle => bundle.generate(output))
     .then(({ code }) => {
       if (isProd) {
         const minified = (banner ? banner + '\n' : '') + terser.minify(code, {
+          toplevel: true,
           output: {
             ascii_only: true
           },
diff --git a/scripts/config.js b/scripts/config.js
index 730ddc2aacb..6f46e164e10 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -36,17 +36,34 @@ const resolve = p => {
 
 const builds = {
   // Runtime only (CommonJS). Used by bundlers e.g. Webpack & Browserify
-  'web-runtime-cjs': {
+  'web-runtime-cjs-dev': {
     entry: resolve('web/entry-runtime.js'),
-    dest: resolve('dist/vue.runtime.common.js'),
+    dest: resolve('dist/vue.runtime.common.dev.js'),
     format: 'cjs',
+    env: 'development',
+    banner
+  },
+  'web-runtime-cjs-prod': {
+    entry: resolve('web/entry-runtime.js'),
+    dest: resolve('dist/vue.runtime.common.prod.js'),
+    format: 'cjs',
+    env: 'production',
     banner
   },
   // Runtime+compiler CommonJS build (CommonJS)
-  'web-full-cjs': {
+  'web-full-cjs-dev': {
     entry: resolve('web/entry-runtime-with-compiler.js'),
-    dest: resolve('dist/vue.common.js'),
+    dest: resolve('dist/vue.common.dev.js'),
     format: 'cjs',
+    env: 'development',
+    alias: { he: './entity-decoder' },
+    banner
+  },
+  'web-full-cjs-prod': {
+    entry: resolve('web/entry-runtime-with-compiler.js'),
+    dest: resolve('dist/vue.common.prod.js'),
+    format: 'cjs',
+    env: 'production',
     alias: { he: './entity-decoder' },
     banner
   },
@@ -117,10 +134,18 @@ const builds = {
     plugins: [node(), cjs()]
   },
   // Web server renderer (CommonJS).
-  'web-server-renderer': {
+  'web-server-renderer-dev': {
     entry: resolve('web/entry-server-renderer.js'),
-    dest: resolve('packages/vue-server-renderer/build.js'),
+    dest: resolve('packages/vue-server-renderer/build.dev.js'),
     format: 'cjs',
+    env: 'development',
+    external: Object.keys(require('../packages/vue-server-renderer/package.json').dependencies)
+  },
+  'web-server-renderer-prod': {
+    entry: resolve('web/entry-server-renderer.js'),
+    dest: resolve('packages/vue-server-renderer/build.prod.js'),
+    format: 'cjs',
+    env: 'production',
     external: Object.keys(require('../packages/vue-server-renderer/package.json').dependencies)
   },
   'web-server-renderer-basic': {

From 861abf4bb940e89a6ae3c5c3e2dad4ed0bd53b3e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 22 Nov 2017 14:23:16 -0500
Subject: [PATCH 642/911] feat: add browser ESM build

---
 scripts/config.js | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/scripts/config.js b/scripts/config.js
index 6f46e164e10..39395828375 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -75,7 +75,7 @@ const builds = {
     format: 'es',
     banner
   },
-  // Runtime+compiler CommonJS build (ES Modules)
+  // Runtime+compiler ES modules build (for bundlers)
   'web-full-esm': {
     entry: resolve('web/entry-runtime-with-compiler.js'),
     dest: resolve('dist/vue.esm.js'),
@@ -83,6 +83,16 @@ const builds = {
     alias: { he: './entity-decoder' },
     banner
   },
+  // Runtime+compiler ES modules build (for direct import in browser)
+  'web-full-esm-browser': {
+    entry: resolve('web/entry-runtime-with-compiler.js'),
+    dest: resolve('dist/vue.esm.browser.js'),
+    format: 'es',
+    transpile: false,
+    env: 'development',
+    alias: { he: './entity-decoder' },
+    banner
+  },
   // runtime-only build (Browser)
   'web-runtime-dev': {
     entry: resolve('web/entry-runtime.js'),
@@ -205,7 +215,6 @@ function genConfig (name) {
         __VERSION__: version
       }),
       flow(),
-      buble(),
       alias(Object.assign({}, aliases, opts.alias))
     ].concat(opts.plugins || []),
     output: {
@@ -227,6 +236,10 @@ function genConfig (name) {
     }))
   }
 
+  if (opts.transpile !== false) {
+    config.plugins.push(buble())
+  }
+
   Object.defineProperty(config, '_name', {
     enumerable: false,
     value: name

From 63f5c6e9f18388b214c17d432842b581c26b33ac Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 5 Dec 2018 17:46:28 -0500
Subject: [PATCH 643/911] build: add esm browser prod build

---
 scripts/config.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/scripts/config.js b/scripts/config.js
index 39395828375..677ee2eb1d4 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -84,7 +84,7 @@ const builds = {
     banner
   },
   // Runtime+compiler ES modules build (for direct import in browser)
-  'web-full-esm-browser': {
+  'web-full-esm-browser-dev': {
     entry: resolve('web/entry-runtime-with-compiler.js'),
     dest: resolve('dist/vue.esm.browser.js'),
     format: 'es',
@@ -93,6 +93,16 @@ const builds = {
     alias: { he: './entity-decoder' },
     banner
   },
+  // Runtime+compiler ES modules build (for direct import in browser)
+  'web-full-esm-browser-prod': {
+    entry: resolve('web/entry-runtime-with-compiler.js'),
+    dest: resolve('dist/vue.esm.browser.min.js'),
+    format: 'es',
+    transpile: false,
+    env: 'production',
+    alias: { he: './entity-decoder' },
+    banner
+  },
   // runtime-only build (Browser)
   'web-runtime-dev': {
     entry: resolve('web/entry-runtime.js'),

From 57910723c6ba68386c15e095e42c1ed9603c7bcf Mon Sep 17 00:00:00 2001
From: Ferdy Budhidharma <ferd312@gmail.com>
Date: Wed, 5 Dec 2018 16:50:13 -0600
Subject: [PATCH 644/911] feat(types): add Prop to main type declaration file
 (#6856)

close #6850
---
 types/index.d.ts           |  1 +
 types/options.d.ts         |  8 +++++---
 types/test/options-test.ts | 30 +++++++++++++++++++++++-------
 3 files changed, 29 insertions(+), 10 deletions(-)

diff --git a/types/index.d.ts b/types/index.d.ts
index a74a371484b..b0e24d767e9 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -15,6 +15,7 @@ export {
   ComponentOptions,
   FunctionalComponentOptions,
   RenderContext,
+  PropType,
   PropOptions,
   ComputedOptions,
   WatchHandler,
diff --git a/types/options.d.ts b/types/options.d.ts
index a65f088b8c6..d43b58d2ef2 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -142,12 +142,14 @@ export interface RenderContext<Props=DefaultProps> {
   injections: any
 }
 
-export type Prop<T> = { (): T } | { new (...args: any[]): T & object }
+export type Prop<T> = { (): T } | { new(...args: any[]): T & object }
 
-export type PropValidator<T> = PropOptions<T> | Prop<T> | Prop<T>[];
+export type PropType<T> = Prop<T> | Prop<T>[];
+
+export type PropValidator<T> = PropOptions<T> | PropType<T>;
 
 export interface PropOptions<T=any> {
-  type?: Prop<T> | Prop<T>[];
+  type?: PropType<T>;
   required?: boolean;
   default?: T | null | undefined | (() => T | null | undefined);
   validator?(value: T): boolean;
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index b1ecf065dc4..ce0e68deccb 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -1,4 +1,4 @@
-import Vue, { VNode } from "../index";
+import Vue, { PropType, VNode } from "../index";
 import { ComponentOptions, Component } from "../index";
 import { CreateElement } from "../vue";
 
@@ -59,20 +59,36 @@ class Cat {
   private u = 1
 }
 
+interface IUser {
+  foo: string,
+  bar: number
+}
+
+interface ICat {
+  foo: any,
+  bar: object
+}
+
 Vue.component('union-prop', {
   props: {
-    primitive: [String, Number],
+    cat: Object as PropType<ICat>,
+    complexUnion: { type: [User, Number] as PropType<User | number> },
+    kittyUser: Object as PropType<ICat & IUser>,
+    mixed: [RegExp, Array],
     object: [Cat, User],
+    primitive: [String, Number],
     regex: RegExp,
-    mixed: [RegExp, Array],
-    union: [User, Number] as {new(): User | Number}[] // requires annotation
+    union: [User, Number] as PropType<User | number>
   },
   data() {
-    this.primitive;
+    this.cat;
+    this.complexUnion;
+    this.kittyUser;
+    this.mixed;
     this.object;
-    this.union;
+    this.primitive;
     this.regex.compile;
-    this.mixed;
+    this.union;
     return {
       fixedSize: this.union,
     }

From ced774be6ddbc53884d7a5d395514a9f62e32336 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Thu, 6 Dec 2018 06:56:27 +0800
Subject: [PATCH 645/911] feat(types): add types for vue-template-compiler
 (#7918)

---
 packages/vue-template-compiler/package.json   |   4 +
 .../vue-template-compiler/types/index.d.ts    | 221 ++++++++++++++++++
 packages/vue-template-compiler/types/test.ts  |  60 +++++
 .../vue-template-compiler/types/tsconfig.json |  13 ++
 4 files changed, 298 insertions(+)
 create mode 100644 packages/vue-template-compiler/types/index.d.ts
 create mode 100644 packages/vue-template-compiler/types/test.ts
 create mode 100644 packages/vue-template-compiler/types/tsconfig.json

diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index c742a35928d..8df73e621c6 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -6,6 +6,7 @@
   "unpkg": "browser.js",
   "jsdelivr": "browser.js",
   "browser": "browser.js",
+  "types": "types/index.d.ts",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/vuejs/vue.git"
@@ -23,5 +24,8 @@
   "dependencies": {
     "he": "^1.1.0",
     "de-indent": "^1.0.2"
+  },
+  "devDependencies": {
+    "vue": "file:../.."
   }
 }
diff --git a/packages/vue-template-compiler/types/index.d.ts b/packages/vue-template-compiler/types/index.d.ts
new file mode 100644
index 00000000000..0d1c810ba3f
--- /dev/null
+++ b/packages/vue-template-compiler/types/index.d.ts
@@ -0,0 +1,221 @@
+import Vue, { VNode } from "vue"
+
+/*
+ * Template compilation options / results
+ */
+interface CompilerOptions {
+  modules?: ModuleOptions[];
+  directives?: Record<string, DirectiveFunction>;
+  preserveWhitespace?: boolean;
+}
+
+interface CompiledResult {
+  ast: ASTElement | undefined;
+  render: string;
+  staticRenderFns: string[];
+  errors: string[];
+  tips: string[];
+}
+
+interface CompiledResultFunctions {
+  render: () => VNode;
+  staticRenderFns: (() => VNode)[];
+}
+
+interface ModuleOptions {
+  preTransformNode: (el: ASTElement) => ASTElement | undefined;
+  transformNode: (el: ASTElement) => ASTElement | undefined;
+  postTransformNode: (el: ASTElement) => void;
+  genData: (el: ASTElement) => string;
+  transformCode?: (el: ASTElement, code: string) => string;
+  staticKeys?: string[];
+}
+
+type DirectiveFunction = (node: ASTElement, directiveMeta: ASTDirective) => void;
+
+/*
+ * AST Types
+ */
+
+/**
+ * - 0: FALSE - whole sub tree un-optimizable
+ * - 1: FULL - whole sub tree optimizable
+ * - 2: SELF - self optimizable but has some un-optimizable children
+ * - 3: CHILDREN - self un-optimizable but have fully optimizable children
+ * - 4: PARTIAL - self un-optimizable with some un-optimizable children
+ */
+export type SSROptimizability = 0 | 1 | 2 | 3 | 4
+
+export interface ASTModifiers {
+  [key: string]: boolean;
+}
+
+export interface ASTIfCondition {
+  exp: string | undefined;
+  block: ASTElement;
+}
+
+export interface ASTElementHandler {
+  value: string;
+  params?: any[];
+  modifiers: ASTModifiers | undefined;
+}
+
+export interface ASTElementHandlers {
+  [key: string]: ASTElementHandler | ASTElementHandler[];
+}
+
+export interface ASTDirective {
+  name: string;
+  rawName: string;
+  value: string;
+  arg: string | undefined;
+  modifiers: ASTModifiers | undefined;
+}
+
+export type ASTNode = ASTElement | ASTText | ASTExpression;
+
+export interface ASTElement {
+  type: 1;
+  tag: string;
+  attrsList: { name: string; value: any }[];
+  attrsMap: Record<string, any>;
+  parent: ASTElement | undefined;
+  children: ASTNode[];
+
+  processed?: true;
+
+  static?: boolean;
+  staticRoot?: boolean;
+  staticInFor?: boolean;
+  staticProcessed?: boolean;
+  hasBindings?: boolean;
+
+  text?: string;
+  attrs?: { name: string; value: any }[];
+  props?: { name: string; value: string }[];
+  plain?: boolean;
+  pre?: true;
+  ns?: string;
+
+  component?: string;
+  inlineTemplate?: true;
+  transitionMode?: string | null;
+  slotName?: string;
+  slotTarget?: string;
+  slotScope?: string;
+  scopedSlots?: Record<string, ASTElement>;
+
+  ref?: string;
+  refInFor?: boolean;
+
+  if?: string;
+  ifProcessed?: boolean;
+  elseif?: string;
+  else?: true;
+  ifConditions?: ASTIfCondition[];
+
+  for?: string;
+  forProcessed?: boolean;
+  key?: string;
+  alias?: string;
+  iterator1?: string;
+  iterator2?: string;
+
+  staticClass?: string;
+  classBinding?: string;
+  staticStyle?: string;
+  styleBinding?: string;
+  events?: ASTElementHandlers;
+  nativeEvents?: ASTElementHandlers;
+
+  transition?: string | true;
+  transitionOnAppear?: boolean;
+
+  model?: {
+    value: string;
+    callback: string;
+    expression: string;
+  };
+
+  directives?: ASTDirective[];
+
+  forbidden?: true;
+  once?: true;
+  onceProcessed?: boolean;
+  wrapData?: (code: string) => string;
+  wrapListeners?: (code: string) => string;
+
+  // 2.4 ssr optimization
+  ssrOptimizability?: SSROptimizability;
+
+  // weex specific
+  appendAsTree?: boolean;
+}
+
+export interface ASTExpression {
+  type: 2;
+  expression: string;
+  text: string;
+  tokens: (string | Record<string, any>)[];
+  static?: boolean;
+  // 2.4 ssr optimization
+  ssrOptimizability?: SSROptimizability;
+}
+
+export interface ASTText {
+  type: 3;
+  text: string;
+  static?: boolean;
+  isComment?: boolean;
+  // 2.4 ssr optimization
+  ssrOptimizability?: SSROptimizability;
+}
+
+/*
+ * SFC parser related types
+ */
+interface SFCParserOptions {
+  pad?: true | 'line' | 'space';
+}
+
+export interface SFCBlock {
+  type: string;
+  content: string;
+  attrs: Record<string, string>;
+  start?: number;
+  end?: number;
+  lang?: string;
+  src?: string;
+  scoped?: boolean;
+  module?: string | boolean;
+}
+
+export interface SFCDescriptor {
+  template: SFCBlock | undefined;
+  script: SFCBlock | undefined;
+  styles: SFCBlock[];
+  customBlocks: SFCBlock[];
+}
+
+/*
+ * Exposed functions
+ */
+export function compile(
+  template: string,
+  options?: CompilerOptions
+): CompiledResult;
+
+export function compileToFunctions(template: string): CompiledResultFunctions;
+
+export function ssrCompile(
+  template: string,
+  options?: CompilerOptions
+): CompiledResult;
+
+export function ssrCompileToFunctions(template: string): CompiledResultFunctions;
+
+export function parseComponent(
+  file: string,
+  options?: SFCParserOptions
+): SFCDescriptor;
diff --git a/packages/vue-template-compiler/types/test.ts b/packages/vue-template-compiler/types/test.ts
new file mode 100644
index 00000000000..be00815c78f
--- /dev/null
+++ b/packages/vue-template-compiler/types/test.ts
@@ -0,0 +1,60 @@
+import Vue, { VNode } from "vue";
+import {
+  compile,
+  compileToFunctions,
+  ssrCompile,
+  ssrCompileToFunctions,
+  parseComponent
+} from "./";
+
+// check compile options
+const compiled = compile("<div>hi</div>", {
+  preserveWhitespace: false,
+  modules: [
+    {
+      preTransformNode: el => el,
+      transformNode: el => el,
+      postTransformNode: el => {
+        el.tag = "p";
+      },
+      genData: el => el.tag,
+      transformCode: (el, code) => code,
+      staticKeys: ["test"]
+    }
+  ],
+  directives: {
+    test: (node, directiveMeta) => {
+      node.tag;
+      directiveMeta.value;
+    }
+  }
+});
+
+// can be passed to function constructor
+new Function(compiled.render);
+compiled.staticRenderFns.map(fn => new Function(fn));
+
+const compiledFns = compileToFunctions("<div>hi</div>");
+
+// can be passed to component render / staticRenderFns options
+const vm = new Vue({
+  data() {
+    return {
+      test: "Test"
+    };
+  },
+  render: compiledFns.render,
+  staticRenderFns: compiledFns.staticRenderFns
+});
+
+// can be called with component instance
+const vnode: VNode = compiledFns.render.call(vm);
+
+// check SFC parser
+const desc = parseComponent("<template></template>", {
+  pad: "space"
+});
+
+const templateContent: string = desc.template!.content;
+const scriptContent: string = desc.script!.content;
+const styleContent: string = desc.styles.map(s => s.content).join("\n");
diff --git a/packages/vue-template-compiler/types/tsconfig.json b/packages/vue-template-compiler/types/tsconfig.json
new file mode 100644
index 00000000000..084dd317ea1
--- /dev/null
+++ b/packages/vue-template-compiler/types/tsconfig.json
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "strict": true,
+    "noEmit": true
+  },
+  "compileOnSave": false,
+  "include": [
+    "**/*.ts"
+  ]
+}

From 850555d1faa9be7d8306adffd95c7dee5e58717f Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Thu, 20 Dec 2018 02:29:00 +0800
Subject: [PATCH 646/911] fix: always use microtasks for nextTick (#8450)

fix #7109, #7546, #7707, #7834, #8109
reopen #6566
---
 src/core/util/next-tick.js                    | 117 ++++++++----------
 .../web/runtime/modules/dom-props.js          |  11 ++
 src/platforms/web/runtime/modules/events.js   |   3 +-
 test/e2e/specs/async-edge-cases.js            |  24 ++--
 4 files changed, 76 insertions(+), 79 deletions(-)

diff --git a/src/core/util/next-tick.js b/src/core/util/next-tick.js
index cc066ed86f6..b63e55c9715 100644
--- a/src/core/util/next-tick.js
+++ b/src/core/util/next-tick.js
@@ -1,9 +1,9 @@
 /* @flow */
-/* globals MessageChannel */
+/* globals MutationObserver */
 
 import { noop } from 'shared/util'
 import { handleError } from './error'
-import { isIOS, isNative } from './env'
+import { isIE, isIOS, isNative } from './env'
 
 const callbacks = []
 let pending = false
@@ -17,76 +17,67 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-let microTimerFunc
-let macroTimerFunc
-let useMacroTask = false
+// Here we have async deferring wrappers using microtasks.
+// In 2.5 we used (macro) tasks (in combination with microtasks).
+// However, it has subtle problems when state is changed right before repaint
+// (e.g. #6813, out-in transitions).
+// Also, using (macro) tasks in event handler would cause some weird behaviors
+// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+// So we now use microtasks everywhere, again.
+// A major drawback of this tradeoff is that there are some scenarios
+// where microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690, which have workarounds)
+// or even between bubbling of the same event (#6566).
+let timerFunc
 
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = () => {
-    setImmediate(flushCallbacks)
-  }
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  const channel = new MessageChannel()
-  const port = channel.port2
-  channel.port1.onmessage = flushCallbacks
-  macroTimerFunc = () => {
-    port.postMessage(1)
-  }
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = () => {
-    setTimeout(flushCallbacks, 0)
-  }
-}
-
-// Determine microtask defer implementation.
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   const p = Promise.resolve()
-  microTimerFunc = () => {
+  timerFunc = () => {
     p.then(flushCallbacks)
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // In problematic UIWebViews, Promise.then doesn't completely break, but
     // it can get stuck in a weird state where callbacks are pushed into the
     // microtask queue but the queue isn't being flushed, until the browser
     // needs to do some other work, e.g. handle a timer. Therefore we can
     // "force" the microtask queue to be flushed by adding an empty timer.
     if (isIOS) setTimeout(noop)
   }
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-export function withMacroTask (fn: Function): Function {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false    
-    }
+} else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  let counter = 1
+  const observer = new MutationObserver(flushCallbacks)
+  const textNode = document.createTextNode(String(counter))
+  observer.observe(textNode, {
+    characterData: true
   })
+  timerFunc = () => {
+    counter = (counter + 1) % 2
+    textNode.data = String(counter)
+  }
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  // Fallback to setImmediate.
+  // Techinically it leverages the (macro) task queue,
+  // but it is still a better choice than setTimeout.
+  timerFunc = () => {
+    setImmediate(flushCallbacks)
+  }
+} else {
+  // Fallback to setTimeout.
+  timerFunc = () => {
+    setTimeout(flushCallbacks, 0)
+  }
 }
 
 export function nextTick (cb?: Function, ctx?: Object) {
@@ -104,11 +95,7 @@ export function nextTick (cb?: Function, ctx?: Object) {
   })
   if (!pending) {
     pending = true
-    if (useMacroTask) {
-      macroTimerFunc()
-    } else {
-      microTimerFunc()
-    }
+    timerFunc()
   }
   // $flow-disable-line
   if (!cb && typeof Promise !== 'undefined') {
diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index f3888aed066..ceec663ac33 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -35,6 +35,17 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       }
     }
 
+    // #4521: if a click event triggers update before the change event is
+    // dispatched on a checkbox/radio input, the input's checked state will
+    // be reset and fail to trigger another update.
+    // The root cause here is that browsers may fire microtasks in between click/change.
+    // In Chrome / Firefox, click event fires before change, thus having this problem.
+    // In Safari / Edge, the order is opposite.
+    // Note: in Edge, if you click too fast, only the click event would fire twice.
+    if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+      continue
+    }
+
     if (key === 'value') {
       // store value as _value as well since
       // non-string values will be stringified
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index e89a38d82c9..1f44a106412 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -2,7 +2,7 @@
 
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
-import { withMacroTask, isIE, supportsPassive } from 'core/util/index'
+import { isIE, supportsPassive } from 'core/util/index'
 import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
 
 // normalize v-model event tokens that can only be determined at runtime.
@@ -44,7 +44,6 @@ function add (
   capture: boolean,
   passive: boolean
 ) {
-  handler = withMacroTask(handler)
   target.addEventListener(
     event,
     handler,
diff --git a/test/e2e/specs/async-edge-cases.js b/test/e2e/specs/async-edge-cases.js
index 2873409400b..077387293c6 100644
--- a/test/e2e/specs/async-edge-cases.js
+++ b/test/e2e/specs/async-edge-cases.js
@@ -14,20 +14,20 @@ module.exports = {
       .assert.containsText('#case-1', '3')
       .assert.checked('#case-1 input', false)
 
-      // #6566
-      .assert.containsText('#case-2 button', 'Expand is True')
-      .assert.containsText('.count-a', 'countA: 0')
-      .assert.containsText('.count-b', 'countB: 0')
+      // // #6566
+      // .assert.containsText('#case-2 button', 'Expand is True')
+      // .assert.containsText('.count-a', 'countA: 0')
+      // .assert.containsText('.count-b', 'countB: 0')
 
-      .click('#case-2 button')
-      .assert.containsText('#case-2 button', 'Expand is False')
-      .assert.containsText('.count-a', 'countA: 1')
-      .assert.containsText('.count-b', 'countB: 0')
+      // .click('#case-2 button')
+      // .assert.containsText('#case-2 button', 'Expand is False')
+      // .assert.containsText('.count-a', 'countA: 1')
+      // .assert.containsText('.count-b', 'countB: 0')
 
-      .click('#case-2 button')
-      .assert.containsText('#case-2 button', 'Expand is True')
-      .assert.containsText('.count-a', 'countA: 1')
-      .assert.containsText('.count-b', 'countB: 1')
+      // .click('#case-2 button')
+      // .assert.containsText('#case-2 button', 'Expand is True')
+      // .assert.containsText('.count-a', 'countA: 1')
+      // .assert.containsText('.count-b', 'countB: 1')
 
       .end()
   }

From 080dd971f77f7c631650c4e3027d1802f4e804d8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 19 Dec 2018 14:00:15 -0500
Subject: [PATCH 647/911] fix(next-tick): revert 60da366

the condition is no longer necessary after reverting back to microtask
only nextTick implementation, and fix #8436
---
 src/platforms/web/runtime/modules/dom-props.js | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index ceec663ac33..da8143bf81e 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -86,10 +86,6 @@ function isDirtyWithModifiers (elm: any, newVal: string): boolean {
   const value = elm.value
   const modifiers = elm._vModifiers // injected by v-model runtime
   if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
     if (modifiers.number) {
       return toNumber(value) !== toNumber(newVal)
     }

From b7f7f2756928f409950186c5d641034f362b392a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 19 Dec 2018 19:26:58 -0500
Subject: [PATCH 648/911] feat: use event delegation when possible

This also fixes async edge case #6566 where events propagate too slow
and incorrectly trigger handlers post-patch.
---
 src/core/util/env.js                          |   1 +
 src/platforms/web/runtime/modules/events.js   | 128 ++++++++++++++++--
 test/e2e/specs/async-edge-cases.js            |  22 +--
 test/helpers/trigger-event.js                 |   3 +
 .../features/component/component-slot.spec.js |   3 +
 test/unit/features/directives/bind.spec.js    |   4 +
 test/unit/features/directives/on.spec.js      |   5 +-
 test/unit/features/options/functional.spec.js |   2 +
 8 files changed, 140 insertions(+), 28 deletions(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index a79cb8d5333..e89a2fc90d9 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -14,6 +14,7 @@ export const isEdge = UA && UA.indexOf('edge/') > 0
 export const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android')
 export const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios')
 export const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge
+export const isPhantomJS = UA && /phantomjs/.test(UA)
 
 // Firefox has a "watch" function on Object.prototype...
 export const nativeWatch = ({}).watch
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 1f44a106412..c0b03063700 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -2,7 +2,7 @@
 
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
-import { isIE, supportsPassive } from 'core/util/index'
+import { isIE, isPhantomJS, supportsPassive } from 'core/util/index'
 import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
 
 // normalize v-model event tokens that can only be determined at runtime.
@@ -38,32 +38,130 @@ function createOnceHandler (event, handler, capture) {
   }
 }
 
+const delegateRE = /^(?:click|dblclick|submit|(?:key|mouse|touch|pointer).*)$/
+const eventCounts = {}
+const attachedGlobalHandlers = {}
+
+type TargetRef = { el: Element | Document }
+
 function add (
-  event: string,
+  name: string,
   handler: Function,
   capture: boolean,
   passive: boolean
 ) {
-  target.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture, passive }
-      : capture
-  )
+  if (!capture && !passive && delegateRE.test(name)) {
+    const count = eventCounts[name]
+    let store = target.__events
+    if (!count) {
+      attachGlobalHandler(name)
+    }
+    if (!store) {
+      store = target.__events = {}
+    }
+    if (!store[name]) {
+      eventCounts[name]++
+    }
+    store[name] = handler
+  } else {
+    target.addEventListener(
+      name,
+      handler,
+      supportsPassive
+        ? { capture, passive }
+        : capture
+    )
+  }
+}
+
+function attachGlobalHandler(name: string) {
+  const handler = (attachedGlobalHandlers[name] = (e: any) => {
+    const isClick = e.type === 'click' || e.type === 'dblclick'
+    if (isClick && e.button !== 0) {
+      e.stopPropagation()
+      return false
+    }
+    const targetRef: TargetRef = { el: document }
+    dispatchEvent(e, name, isClick, targetRef)
+  })
+  document.addEventListener(name, handler)
+  eventCounts[name] = 0
+}
+
+function stopPropagation() {
+  this.cancelBubble = true
+  if (!this.immediatePropagationStopped) {
+    this.stopImmediatePropagation()
+  }
+}
+
+function dispatchEvent(
+  e: Event,
+  name: string,
+  isClick: boolean,
+  targetRef: TargetRef
+) {
+  let el: any = e.target
+  let userEvent
+  if (isPhantomJS) {
+    // in PhantomJS it throws if we try to re-define currentTarget,
+    // so instead we create a wrapped event to the user
+    userEvent = Object.create((e: any))
+    userEvent.stopPropagation = stopPropagation.bind((e: any))
+    userEvent.preventDefault = e.preventDefault.bind(e)
+  } else {
+    userEvent = e
+  }
+  Object.defineProperty(userEvent, 'currentTarget', ({
+    configurable: true,
+    get() {
+      return targetRef.el
+    }
+  }: any))
+  while (el != null) {
+    // Don't process clicks on disabled elements
+    if (isClick && el.disabled) {
+      break
+    }
+    const store = el.__events
+    if (store) {
+      const handler = store[name]
+      if (handler) {
+        targetRef.el = el
+        handler(userEvent)
+        if (e.cancelBubble) {
+          break
+        }
+      }
+    }
+    el = el.parentNode
+  }
+}
+
+function removeGlobalHandler(name: string) {
+  document.removeEventListener(name, attachedGlobalHandlers[name])
+  attachedGlobalHandlers[name] = null
 }
 
 function remove (
-  event: string,
+  name: string,
   handler: Function,
   capture: boolean,
   _target?: HTMLElement
 ) {
-  (_target || target).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  )
+  const el: any = _target || target
+  if (!capture && delegateRE.test(name)) {
+    el.__events[name] = null
+    if (--eventCounts[name] === 0) {
+      removeGlobalHandler(name)
+    }
+  } else {
+    el.removeEventListener(
+      name,
+      handler._withTask || handler,
+      capture
+    )
+  }
 }
 
 function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
diff --git a/test/e2e/specs/async-edge-cases.js b/test/e2e/specs/async-edge-cases.js
index 077387293c6..27212b76d65 100644
--- a/test/e2e/specs/async-edge-cases.js
+++ b/test/e2e/specs/async-edge-cases.js
@@ -15,19 +15,19 @@ module.exports = {
       .assert.checked('#case-1 input', false)
 
       // // #6566
-      // .assert.containsText('#case-2 button', 'Expand is True')
-      // .assert.containsText('.count-a', 'countA: 0')
-      // .assert.containsText('.count-b', 'countB: 0')
+      .assert.containsText('#case-2 button', 'Expand is True')
+      .assert.containsText('.count-a', 'countA: 0')
+      .assert.containsText('.count-b', 'countB: 0')
 
-      // .click('#case-2 button')
-      // .assert.containsText('#case-2 button', 'Expand is False')
-      // .assert.containsText('.count-a', 'countA: 1')
-      // .assert.containsText('.count-b', 'countB: 0')
+      .click('#case-2 button')
+      .assert.containsText('#case-2 button', 'Expand is False')
+      .assert.containsText('.count-a', 'countA: 1')
+      .assert.containsText('.count-b', 'countB: 0')
 
-      // .click('#case-2 button')
-      // .assert.containsText('#case-2 button', 'Expand is True')
-      // .assert.containsText('.count-a', 'countA: 1')
-      // .assert.containsText('.count-b', 'countB: 1')
+      .click('#case-2 button')
+      .assert.containsText('#case-2 button', 'Expand is True')
+      .assert.containsText('.count-a', 'countA: 1')
+      .assert.containsText('.count-b', 'countB: 1')
 
       .end()
   }
diff --git a/test/helpers/trigger-event.js b/test/helpers/trigger-event.js
index 4cd5d79db55..e2825135730 100644
--- a/test/helpers/trigger-event.js
+++ b/test/helpers/trigger-event.js
@@ -1,6 +1,9 @@
 window.triggerEvent = function triggerEvent (target, event, process) {
   const e = document.createEvent('HTMLEvents')
   e.initEvent(event, true, true)
+  if (event === 'click') {
+    e.button = 0
+  }
   if (process) process(e)
   target.dispatchEvent(e)
 }
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index 28dafad437a..e9ed31a00c1 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -542,6 +542,7 @@ describe('Component slot', () => {
       }
     }).$mount()
 
+    document.body.appendChild(vm.$el)
     expect(vm.$el.textContent).toBe('hi')
     vm.$children[0].toggle = false
     waitForUpdate(() => {
@@ -549,6 +550,8 @@ describe('Component slot', () => {
     }).then(() => {
       triggerEvent(vm.$el.querySelector('.click'), 'click')
       expect(spy).toHaveBeenCalled()
+    }).then(() => {
+      document.body.removeChild(vm.$el)
     }).then(done)
   })
 
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index 07d0704bf2d..52bc8168dac 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -157,10 +157,12 @@ describe('Directive v-bind', () => {
       }
     }).$mount()
 
+    document.body.appendChild(vm.$el)
     expect(vm.$el.textContent).toBe('1')
     triggerEvent(vm.$el, 'click')
     waitForUpdate(() => {
       expect(vm.$el.textContent).toBe('2')
+      document.body.removeChild(vm.$el)
     }).then(done)
   })
 
@@ -227,6 +229,7 @@ describe('Directive v-bind', () => {
         }
       }
     }).$mount()
+    document.body.appendChild(vm.$el)
     expect(vm.$el.textContent).toBe('1')
     triggerEvent(vm.$el, 'click')
     waitForUpdate(() => {
@@ -234,6 +237,7 @@ describe('Directive v-bind', () => {
       vm.test.fooBar = 3
     }).then(() => {
       expect(vm.$el.textContent).toBe('3')
+      document.body.removeChild(vm.$el)
     }).then(done)
   })
 
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index 807ad5777c8..33de85d1be6 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -735,10 +735,11 @@ describe('Directive v-on', () => {
 
   it('should transform click.middle to mouseup', () => {
     const spy = jasmine.createSpy('click.middle')
-    const vm = new Vue({
+    vm = new Vue({
+      el,
       template: `<div @click.middle="foo"></div>`,
       methods: { foo: spy }
-    }).$mount()
+    })
     triggerEvent(vm.$el, 'mouseup', e => { e.button = 0 })
     expect(spy).not.toHaveBeenCalled()
     triggerEvent(vm.$el, 'mouseup', e => { e.button = 1 })
diff --git a/test/unit/features/options/functional.spec.js b/test/unit/features/options/functional.spec.js
index 8e06d3e12ee..b3446ac5991 100644
--- a/test/unit/features/options/functional.spec.js
+++ b/test/unit/features/options/functional.spec.js
@@ -70,11 +70,13 @@ describe('Options functional', () => {
       }
     }).$mount()
 
+    document.body.appendChild(vm.$el)
     triggerEvent(vm.$el.children[0], 'click')
     expect(foo).toHaveBeenCalled()
     expect(foo.calls.argsFor(0)[0].type).toBe('click') // should have click event
     triggerEvent(vm.$el.children[0], 'mousedown')
     expect(bar).toHaveBeenCalledWith('bar')
+    document.body.removeChild(vm.$el)
   })
 
   it('should support returning more than one root node', () => {

From 6e9fcfc81d922a1b188268bf50d7e67c07d6d662 Mon Sep 17 00:00:00 2001
From: Enkot <taras.batenkov@gmail.com>
Date: Thu, 20 Dec 2018 17:02:28 +0200
Subject: [PATCH 649/911] feat(errors): sync/async error handling for lifecycle
 hooks and v-on handlers (#8395)

close #6953, close #7653
---
 src/core/instance/events.js               |   6 +-
 src/core/instance/lifecycle.js            |   6 +-
 src/core/util/error.js                    |   7 ++
 src/core/vdom/helpers/update-listeners.js |  23 +++--
 test/unit/features/error-handling.spec.js | 112 ++++++++++++++++++++++
 5 files changed, 144 insertions(+), 10 deletions(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index bb07a96b42e..fa2c8d4fd3f 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -5,7 +5,8 @@ import {
   toArray,
   hyphenate,
   handleError,
-  formatComponentName
+  formatComponentName,
+  handlePromiseError
 } from '../util/index'
 import { updateListeners } from '../vdom/helpers/index'
 
@@ -135,7 +136,8 @@ export function eventsMixin (Vue: Class<Component>) {
       const args = toArray(arguments, 1)
       for (let i = 0, l = cbs.length; i < l; i++) {
         try {
-          cbs[i].apply(vm, args)
+          const cbResult = cbs[i].apply(vm, args)
+          handlePromiseError(cbResult, vm, `event handler for "${event}"`)
         } catch (e) {
           handleError(e, vm, `event handler for "${event}"`)
         }
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index d0b871be288..5efa0c6140f 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -15,7 +15,8 @@ import {
   remove,
   handleError,
   emptyObject,
-  validateProp
+  validateProp,
+  handlePromiseError
 } from '../util/index'
 
 export let activeInstance: any = null
@@ -326,7 +327,8 @@ export function callHook (vm: Component, hook: string) {
   if (handlers) {
     for (let i = 0, j = handlers.length; i < j; i++) {
       try {
-        handlers[i].call(vm)
+        const fnResult = handlers[i].call(vm)
+        handlePromiseError(fnResult, vm, `${hook} hook`)
       } catch (e) {
         handleError(e, vm, `${hook} hook`)
       }
diff --git a/src/core/util/error.js b/src/core/util/error.js
index b7d05a6d7c6..5b5d60c80fe 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -24,6 +24,13 @@ export function handleError (err: Error, vm: any, info: string) {
   globalHandleError(err, vm, info)
 }
 
+export function handlePromiseError (value: any, vm: any, info: string) {
+  // if value is promise, handle it (a promise must have a then function)
+  if (value && typeof value.then === 'function' && typeof value.catch === 'function') {
+    value.catch(e => handleError(e, vm, info))
+  }
+}
+
 function globalHandleError (err, vm, info) {
   if (config.errorHandler) {
     try {
diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index df58727f12b..88cab4ec4df 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -1,7 +1,6 @@
 /* @flow */
 
-import { warn } from 'core/util/index'
-
+import { warn, handleError, handlePromiseError } from 'core/util/index'
 import {
   cached,
   isUndef,
@@ -31,17 +30,29 @@ const normalizeEvent = cached((name: string): {
   }
 })
 
-export function createFnInvoker (fns: Function | Array<Function>): Function {
+export function createFnInvoker (fns: Function | Array<Function>, vm: ?Component): Function {
   function invoker () {
     const fns = invoker.fns
     if (Array.isArray(fns)) {
       const cloned = fns.slice()
       for (let i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments)
+        try {
+          const result = cloned[i].apply(null, arguments)
+          handlePromiseError(result, vm, 'v-on async')
+        } catch (e) {
+          handleError(e, vm, 'v-on')
+        }
       }
     } else {
       // return handler return value for single handlers
-      return fns.apply(null, arguments)
+      let result
+      try {
+        result = fns.apply(null, arguments)
+        handlePromiseError(result, vm, 'v-on async')
+      } catch (e) {
+        handleError(e, vm, 'v-on')
+      }
+      return result
     }
   }
   invoker.fns = fns
@@ -73,7 +84,7 @@ export function updateListeners (
       )
     } else if (isUndef(old)) {
       if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur)
+        cur = on[name] = createFnInvoker(cur, vm)
       }
       if (isTrue(event.once)) {
         cur = on[name] = createOnceHandler(event.name, cur, event.capture)
diff --git a/test/unit/features/error-handling.spec.js b/test/unit/features/error-handling.spec.js
index 713c91a766d..2b10ea632fe 100644
--- a/test/unit/features/error-handling.spec.js
+++ b/test/unit/features/error-handling.spec.js
@@ -22,6 +22,23 @@ describe('Error handling', () => {
     })
   })
 
+  // hooks that can return rejected promise
+  ;[
+    ['beforeCreate', 'beforeCreate hook'],
+    ['created', 'created hook'],
+    ['beforeMount', 'beforeMount hook'],
+    ['mounted', 'mounted hook'],
+    ['event', 'event handler for "e"']
+  ].forEach(([type, description]) => {
+    it(`should recover from promise errors in ${type}`, done => {
+      createTestInstance(components[`${type}Async`])
+      waitForUpdate(() => {
+        expect(`Error in ${description}`).toHaveBeenWarned()
+        expect(`Error: ${type}`).toHaveBeenWarned()
+      }).then(done)
+    })
+  })
+
   // error in mounted hook should affect neither child nor parent
   it('should recover from errors in mounted hook', done => {
     const vm = createTestInstance(components.mounted)
@@ -45,6 +62,20 @@ describe('Error handling', () => {
     })
   })
 
+  // hooks that can return rejected promise
+  ;[
+    ['beforeUpdate', 'beforeUpdate hook'],
+    ['updated', 'updated hook']
+  ].forEach(([type, description]) => {
+    it(`should recover from promise errors in ${type} hook`, done => {
+      const vm = createTestInstance(components[`${type}Async`])
+      assertBothInstancesActive(vm).then(() => {
+        expect(`Error in ${description}`).toHaveBeenWarned()
+        expect(`Error: ${type}`).toHaveBeenWarned()
+      }).then(done)
+    })
+  })
+
   ;[
     ['beforeDestroy', 'beforeDestroy hook'],
     ['destroyed', 'destroyed hook'],
@@ -62,6 +93,21 @@ describe('Error handling', () => {
     })
   })
 
+  ;[
+    ['beforeDestroy', 'beforeDestroy hook'],
+    ['destroyed', 'destroyed hook']
+  ].forEach(([type, description]) => {
+    it(`should recover from promise errors in ${type} hook`, done => {
+      const vm = createTestInstance(components[`${type}Async`])
+      vm.ok = false
+      setTimeout(() => {
+        expect(`Error in ${description}`).toHaveBeenWarned()
+        expect(`Error: ${type}`).toHaveBeenWarned()
+        assertRootInstanceActive(vm).then(done)
+      })
+    })
+  })
+
   it('should recover from errors in user watcher getter', done => {
     const vm = createTestInstance(components.userWatcherGetter)
     vm.n++
@@ -152,6 +198,40 @@ describe('Error handling', () => {
     expect(vm.$el.textContent).toContain('error in render')
     Vue.config.errorHandler = null
   })
+
+  // event handlers that can throw errors or return rejected promise
+  ;[
+    ['single handler', '<div v-on:click="bork"></div>'],
+    ['multiple handlers', '<div v-on="{ click: [bork, function test() {}] }"></div>']
+  ].forEach(([type, template]) => {
+    it(`should recover from v-on errors for ${type} registered`, () => {
+      const vm = new Vue({
+        template,
+        methods: { bork () { throw new Error('v-on') } }
+      }).$mount()
+      document.body.appendChild(vm.$el)
+      triggerEvent(vm.$el, 'click')
+      expect('Error in v-on').toHaveBeenWarned()
+      expect('Error: v-on').toHaveBeenWarned()
+      document.body.removeChild(vm.$el)
+    })
+
+    it(`should recover from v-on async errors for ${type} registered`, (done) => {
+      const vm = new Vue({
+        template,
+        methods: { bork () {
+          return new Promise((resolve, reject) => reject(new Error('v-on async')))
+        } }
+      }).$mount()
+      document.body.appendChild(vm.$el)
+      triggerEvent(vm.$el, 'click')
+      waitForUpdate(() => {
+        expect('Error in v-on async').toHaveBeenWarned()
+        expect('Error: v-on async').toHaveBeenWarned()
+        document.body.removeChild(vm.$el)
+      }).then(done)
+    })
+  })
 })
 
 function createErrorTestComponents () {
@@ -188,6 +268,16 @@ function createErrorTestComponents () {
       throw new Error(before)
     }
 
+    const beforeCompAsync = components[`${before}Async`] = {
+      props: ['n'],
+      render (h) {
+        return h('div', this.n)
+      }
+    }
+    beforeCompAsync[before] = function () {
+      return new Promise((resolve, reject) => reject(new Error(before)))
+    }
+
     // after
     const after = hook.replace(/e?$/, 'ed')
     const afterComp = components[after] = {
@@ -199,6 +289,16 @@ function createErrorTestComponents () {
     afterComp[after] = function () {
       throw new Error(after)
     }
+
+    const afterCompAsync = components[`${after}Async`] = {
+      props: ['n'],
+      render (h) {
+        return h('div', this.n)
+      }
+    }
+    afterCompAsync[after] = function () {
+      return new Promise((resolve, reject) => reject(new Error(after)))
+    }
   })
 
   // directive hooks errors
@@ -272,6 +372,18 @@ function createErrorTestComponents () {
     }
   }
 
+  components.eventAsync = {
+    beforeCreate () {
+      this.$on('e', () => new Promise((resolve, reject) => reject(new Error('event'))))
+    },
+    mounted () {
+      this.$emit('e')
+    },
+    render (h) {
+      return h('div')
+    }
+  }
+
   return components
 }
 

From 35edc1c1e2515033a07e903580df01bcd43090aa Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 20 Dec 2018 10:09:06 -0500
Subject: [PATCH 650/911] refactor: extract isPromise util

---
 src/core/util/error.js                           | 3 ++-
 src/core/vdom/helpers/resolve-async-component.js | 7 ++++---
 src/shared/util.js                               | 8 ++++++++
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index 5b5d60c80fe..39a23650f96 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -3,6 +3,7 @@
 import config from '../config'
 import { warn } from './debug'
 import { inBrowser, inWeex } from './env'
+import { isPromise } from 'shared/util'
 
 export function handleError (err: Error, vm: any, info: string) {
   if (vm) {
@@ -26,7 +27,7 @@ export function handleError (err: Error, vm: any, info: string) {
 
 export function handlePromiseError (value: any, vm: any, info: string) {
   // if value is promise, handle it (a promise must have a then function)
-  if (value && typeof value.then === 'function' && typeof value.catch === 'function') {
+  if (isPromise(value)) {
     value.catch(e => handleError(e, vm, info))
   }
 }
diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 44ca238854f..f64419cb1cf 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -7,7 +7,8 @@ import {
   isUndef,
   isTrue,
   isObject,
-  hasSymbol
+  hasSymbol,
+  isPromise
 } from 'core/util/index'
 
 import { createEmptyVNode } from 'core/vdom/vnode'
@@ -95,12 +96,12 @@ export function resolveAsyncComponent (
     const res = factory(resolve, reject)
 
     if (isObject(res)) {
-      if (typeof res.then === 'function') {
+      if (isPromise(res)) {
         // () => Promise
         if (isUndef(factory.resolved)) {
           res.then(resolve, reject)
         }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+      } else if (isPromise(res.component)) {
         res.component.then(resolve, reject)
 
         if (isDef(res.error)) {
diff --git a/src/shared/util.js b/src/shared/util.js
index f4a503b0e93..396e9ba84c0 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -71,6 +71,14 @@ export function isValidArrayIndex (val: any): boolean {
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
+export function isPromise (val: any): boolean {
+  return (
+    isDef(val) &&
+    typeof val.then === 'function' &&
+    typeof val.catch === 'function'
+  )
+}
+
 /**
  * Convert a value to a string that is actually rendered.
  */

From b00868c5cb1ca8aa8b42947ff5d2a55e9e298582 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 20 Dec 2018 10:26:56 -0500
Subject: [PATCH 651/911] refactor: extract async error handling logic

---
 src/core/instance/events.js               | 11 +++--------
 src/core/instance/lifecycle.js            | 11 +++--------
 src/core/util/error.js                    | 20 ++++++++++++++++----
 src/core/vdom/helpers/update-listeners.js | 21 ++++++---------------
 test/unit/features/error-handling.spec.js | 12 ++++++------
 5 files changed, 34 insertions(+), 41 deletions(-)

diff --git a/src/core/instance/events.js b/src/core/instance/events.js
index fa2c8d4fd3f..4d5bb552850 100644
--- a/src/core/instance/events.js
+++ b/src/core/instance/events.js
@@ -4,9 +4,8 @@ import {
   tip,
   toArray,
   hyphenate,
-  handleError,
   formatComponentName,
-  handlePromiseError
+  invokeWithErrorHandling
 } from '../util/index'
 import { updateListeners } from '../vdom/helpers/index'
 
@@ -134,13 +133,9 @@ export function eventsMixin (Vue: Class<Component>) {
     if (cbs) {
       cbs = cbs.length > 1 ? toArray(cbs) : cbs
       const args = toArray(arguments, 1)
+      const info = `event handler for "${event}"`
       for (let i = 0, l = cbs.length; i < l; i++) {
-        try {
-          const cbResult = cbs[i].apply(vm, args)
-          handlePromiseError(cbResult, vm, `event handler for "${event}"`)
-        } catch (e) {
-          handleError(e, vm, `event handler for "${event}"`)
-        }
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info)
       }
     }
     return vm
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 5efa0c6140f..3879c7b5d7f 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -13,10 +13,9 @@ import {
   warn,
   noop,
   remove,
-  handleError,
   emptyObject,
   validateProp,
-  handlePromiseError
+  invokeWithErrorHandling
 } from '../util/index'
 
 export let activeInstance: any = null
@@ -324,14 +323,10 @@ export function callHook (vm: Component, hook: string) {
   // #7573 disable dep collection when invoking lifecycle hooks
   pushTarget()
   const handlers = vm.$options[hook]
+  const info = `${hook} hook`
   if (handlers) {
     for (let i = 0, j = handlers.length; i < j; i++) {
-      try {
-        const fnResult = handlers[i].call(vm)
-        handlePromiseError(fnResult, vm, `${hook} hook`)
-      } catch (e) {
-        handleError(e, vm, `${hook} hook`)
-      }
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info)
     }
   }
   if (vm._hasHookEvent) {
diff --git a/src/core/util/error.js b/src/core/util/error.js
index 39a23650f96..ea4d0411454 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -25,11 +25,23 @@ export function handleError (err: Error, vm: any, info: string) {
   globalHandleError(err, vm, info)
 }
 
-export function handlePromiseError (value: any, vm: any, info: string) {
-  // if value is promise, handle it (a promise must have a then function)
-  if (isPromise(value)) {
-    value.catch(e => handleError(e, vm, info))
+export function invokeWithErrorHandling (
+  handler: Function,
+  context: any,
+  args: null | any[],
+  vm: any,
+  info: string
+) {
+  let res
+  try {
+    res = args ? handler.apply(context, args) : handler.call(context)
+    if (isPromise(res)) {
+      res.catch(e => handleError(e, vm, info + ` (Promise/async)`))
+    }
+  } catch (e) {
+    handleError(e, vm, info)
   }
+  return res
 }
 
 function globalHandleError (err, vm, info) {
diff --git a/src/core/vdom/helpers/update-listeners.js b/src/core/vdom/helpers/update-listeners.js
index 88cab4ec4df..dcde7f488fe 100644
--- a/src/core/vdom/helpers/update-listeners.js
+++ b/src/core/vdom/helpers/update-listeners.js
@@ -1,6 +1,9 @@
 /* @flow */
 
-import { warn, handleError, handlePromiseError } from 'core/util/index'
+import {
+  warn,
+  invokeWithErrorHandling
+} from 'core/util/index'
 import {
   cached,
   isUndef,
@@ -36,23 +39,11 @@ export function createFnInvoker (fns: Function | Array<Function>, vm: ?Component
     if (Array.isArray(fns)) {
       const cloned = fns.slice()
       for (let i = 0; i < cloned.length; i++) {
-        try {
-          const result = cloned[i].apply(null, arguments)
-          handlePromiseError(result, vm, 'v-on async')
-        } catch (e) {
-          handleError(e, vm, 'v-on')
-        }
+        invokeWithErrorHandling(cloned[i], null, arguments, vm, `v-on handler`)
       }
     } else {
       // return handler return value for single handlers
-      let result
-      try {
-        result = fns.apply(null, arguments)
-        handlePromiseError(result, vm, 'v-on async')
-      } catch (e) {
-        handleError(e, vm, 'v-on')
-      }
-      return result
+      return invokeWithErrorHandling(fns, null, arguments, vm, `v-on handler`)
     }
   }
   invoker.fns = fns
diff --git a/test/unit/features/error-handling.spec.js b/test/unit/features/error-handling.spec.js
index 2b10ea632fe..7d0eaa512ab 100644
--- a/test/unit/features/error-handling.spec.js
+++ b/test/unit/features/error-handling.spec.js
@@ -33,7 +33,7 @@ describe('Error handling', () => {
     it(`should recover from promise errors in ${type}`, done => {
       createTestInstance(components[`${type}Async`])
       waitForUpdate(() => {
-        expect(`Error in ${description}`).toHaveBeenWarned()
+        expect(`Error in ${description} (Promise/async)`).toHaveBeenWarned()
         expect(`Error: ${type}`).toHaveBeenWarned()
       }).then(done)
     })
@@ -70,7 +70,7 @@ describe('Error handling', () => {
     it(`should recover from promise errors in ${type} hook`, done => {
       const vm = createTestInstance(components[`${type}Async`])
       assertBothInstancesActive(vm).then(() => {
-        expect(`Error in ${description}`).toHaveBeenWarned()
+        expect(`Error in ${description} (Promise/async)`).toHaveBeenWarned()
         expect(`Error: ${type}`).toHaveBeenWarned()
       }).then(done)
     })
@@ -101,7 +101,7 @@ describe('Error handling', () => {
       const vm = createTestInstance(components[`${type}Async`])
       vm.ok = false
       setTimeout(() => {
-        expect(`Error in ${description}`).toHaveBeenWarned()
+        expect(`Error in ${description} (Promise/async)`).toHaveBeenWarned()
         expect(`Error: ${type}`).toHaveBeenWarned()
         assertRootInstanceActive(vm).then(done)
       })
@@ -211,7 +211,7 @@ describe('Error handling', () => {
       }).$mount()
       document.body.appendChild(vm.$el)
       triggerEvent(vm.$el, 'click')
-      expect('Error in v-on').toHaveBeenWarned()
+      expect('Error in v-on handler').toHaveBeenWarned()
       expect('Error: v-on').toHaveBeenWarned()
       document.body.removeChild(vm.$el)
     })
@@ -226,8 +226,8 @@ describe('Error handling', () => {
       document.body.appendChild(vm.$el)
       triggerEvent(vm.$el, 'click')
       waitForUpdate(() => {
-        expect('Error in v-on async').toHaveBeenWarned()
-        expect('Error: v-on async').toHaveBeenWarned()
+        expect('Error in v-on handler (Promise/async)').toHaveBeenWarned()
+        expect('Error: v-on').toHaveBeenWarned()
         document.body.removeChild(vm.$el)
       }).then(done)
     })

From 0ebb0f39dfee0a5c03adb2f312f617cca37b44d6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 20 Dec 2018 11:32:06 -0500
Subject: [PATCH 652/911] fix: return inline invocation return value in v-on
 handlers

close #7628
---
 src/compiler/codegen/events.js           | 10 ++++++++--
 test/unit/features/directives/on.spec.js | 24 ++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 7c4e72b82b0..b87441925b4 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -1,6 +1,7 @@
 /* @flow */
 
 const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/
+const fnInvokeRE = /\([^)]*?\)$/
 const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/
 
 // KeyboardEvent.keyCode aliases
@@ -94,6 +95,7 @@ function genHandler (
 
   const isMethodPath = simplePathRE.test(handler.value)
   const isFunctionExpression = fnExpRE.test(handler.value)
+  const isFunctionInvocation = fnInvokeRE.test(handler.value)
 
   if (!handler.modifiers) {
     if (isMethodPath || isFunctionExpression) {
@@ -103,7 +105,9 @@ function genHandler (
     if (__WEEX__ && handler.params) {
       return genWeexHandler(handler.params, handler.value)
     }
-    return `function($event){${handler.value}}` // inline statement
+    return `function($event){${
+      isFunctionInvocation ? `return (${handler.value})` : handler.value
+    }}` // inline statement
   } else {
     let code = ''
     let genModifierCode = ''
@@ -138,7 +142,9 @@ function genHandler (
       ? `return ${handler.value}($event)`
       : isFunctionExpression
         ? `return (${handler.value})($event)`
-        : handler.value
+        : isFunctionInvocation
+          ? `return (${handler.value})`
+          : handler.value
     /* istanbul ignore if */
     if (__WEEX__ && handler.params) {
       return genWeexHandler(handler.params, code + handlerCode)
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index 33de85d1be6..74d65376494 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -923,4 +923,28 @@ describe('Directive v-on', () => {
       expect(spy.calls.count()).toBe(0)
     }).then(done)
   })
+
+  // #7628
+  it('handler should return the return value of inline function invocation', () => {
+    let value
+    new Vue({
+      template: `<test @foo="bar()"></test>`,
+      methods: {
+        bar() {
+          return 1
+        }
+      },
+      components: {
+        test: {
+          created() {
+            value = this.$listeners.foo()
+          },
+          render(h) {
+            return h('div')
+          }
+        }
+      }
+    }).$mount()
+    expect(value).toBe(1)
+  })
 })

From 9432737cf871335c42ce0dc0a0baa21a4d8c3832 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 20 Dec 2018 12:20:09 -0500
Subject: [PATCH 653/911] fix: cover more cases in v-on inline return value

---
 src/compiler/codegen/events.js                  |  8 ++++----
 test/unit/modules/compiler/codegen.spec.js      | 14 +++++++-------
 test/unit/modules/vdom/patch/edge-cases.spec.js |  7 ++-----
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index b87441925b4..1beaed76a02 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -1,7 +1,7 @@
 /* @flow */
 
 const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/
-const fnInvokeRE = /\([^)]*?\)$/
+const fnInvokeRE = /\([^)]*?\);*$/
 const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/
 
 // KeyboardEvent.keyCode aliases
@@ -95,7 +95,7 @@ function genHandler (
 
   const isMethodPath = simplePathRE.test(handler.value)
   const isFunctionExpression = fnExpRE.test(handler.value)
-  const isFunctionInvocation = fnInvokeRE.test(handler.value)
+  const isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''))
 
   if (!handler.modifiers) {
     if (isMethodPath || isFunctionExpression) {
@@ -106,7 +106,7 @@ function genHandler (
       return genWeexHandler(handler.params, handler.value)
     }
     return `function($event){${
-      isFunctionInvocation ? `return (${handler.value})` : handler.value
+      isFunctionInvocation ? `return ${handler.value}` : handler.value
     }}` // inline statement
   } else {
     let code = ''
@@ -143,7 +143,7 @@ function genHandler (
       : isFunctionExpression
         ? `return (${handler.value})($event)`
         : isFunctionInvocation
-          ? `return (${handler.value})`
+          ? `return ${handler.value}`
           : handler.value
     /* istanbul ignore if */
     if (__WEEX__ && handler.params) {
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index f2c47ed4b6b..7f5fbeae333 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -304,32 +304,32 @@ describe('codegen', () => {
   it('generate events with method call', () => {
     assertCodegen(
       '<input @input="onInput($event);">',
-      `with(this){return _c('input',{on:{"input":function($event){onInput($event);}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){return onInput($event);}}})}`
     )
     // empty arguments
     assertCodegen(
       '<input @input="onInput();">',
-      `with(this){return _c('input',{on:{"input":function($event){onInput();}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){return onInput();}}})}`
     )
     // without semicolon
     assertCodegen(
       '<input @input="onInput($event)">',
-      `with(this){return _c('input',{on:{"input":function($event){onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){return onInput($event)}}})}`
     )
     // multiple args
     assertCodegen(
       '<input @input="onInput($event, \'abc\', 5);">',
-      `with(this){return _c('input',{on:{"input":function($event){onInput($event, 'abc', 5);}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){return onInput($event, 'abc', 5);}}})}`
     )
     // expression in args
     assertCodegen(
       '<input @input="onInput($event, 2+2);">',
-      `with(this){return _c('input',{on:{"input":function($event){onInput($event, 2+2);}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){return onInput($event, 2+2);}}})}`
     )
     // tricky symbols in args
     assertCodegen(
-      '<input @input="onInput(\');[\'());\');">',
-      `with(this){return _c('input',{on:{"input":function($event){onInput(');[\'());');}}})}`
+      `<input @input="onInput(');[\\'());');">`,
+      `with(this){return _c('input',{on:{"input":function($event){onInput(');[\\'());');}}})}`
     )
   })
 
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index 4c5702b47bf..a1c492d4b3e 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -49,12 +49,9 @@ describe('vdom patch: edge cases', () => {
           bind (el, binding, vnode) {
             waitForUpdate(() => {
               expect(vnode.children[0].data.on.click()).toBe(5)
-            }).then(() => {
               expect(vnode.children[2].data.on.click(dummyEvt)).toBe(5)
-            }).then(() => {
-              expect(vnode.children[4].data.on.click()).not.toBeDefined()
-            }).then(() => {
-              expect(vnode.children[6].data.on.click(dummyEvt)).not.toBeDefined()
+              expect(vnode.children[4].data.on.click()).toBe(10)
+              expect(vnode.children[6].data.on.click(dummyEvt)).toBe(10)
             }).then(done)
           }
         }

From f036cce16377cec328bee03a3a4069275b320312 Mon Sep 17 00:00:00 2001
From: Hyunje Jun <me@noraesae.net>
Date: Fri, 21 Dec 2018 05:15:04 +0900
Subject: [PATCH 654/911] feat(ssr): Add 'nonce' option to context for ssr
 outlet script (#8047)

close #7479
---
 src/server/template-renderer/index.js |  3 ++-
 test/ssr/ssr-template.spec.js         | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index 65887c2591c..0233d157646 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -198,8 +198,9 @@ export default class TemplateRenderer {
     const autoRemove = process.env.NODE_ENV === 'production'
       ? ';(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
       : ''
+    const nonceAttr = context.nonce ? ` nonce="${context.nonce}"` : ''
     return context[contextKey]
-      ? `<script>window.${windowKey}=${state}${autoRemove}</script>`
+      ? `<script${nonceAttr}>window.${windowKey}=${state}${autoRemove}</script>`
       : ''
   }
 
diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index 2491b591d87..cf1ec6579e4 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -387,5 +387,32 @@ describe('SSR: template option', () => {
         done()
       })
     })
+
+    it('renderToString + nonce', done => {
+      const interpolateTemplate = `<html><head><title>hello</title></head><body><!--vue-ssr-outlet--></body></html>`
+      const renderer = createRenderer({
+        template: interpolateTemplate
+      })
+
+      const context = {
+        state: { a: 1 },
+        nonce: '4AEemGb0xJptoIGFP3Nd'
+      }
+
+      renderer.renderToString(new Vue({
+        template: '<div>hi</div>'
+      }), context, (err, res) => {
+        expect(err).toBeNull()
+        expect(res).toContain(
+          `<html><head>` +
+          `<title>hello</title>` +
+          `</head><body>` +
+          `<div data-server-rendered="true">hi</div>` +
+          `<script nonce="4AEemGb0xJptoIGFP3Nd">window.__INITIAL_STATE__={"a":1}</script>` +
+          `</body></html>`
+        )
+        done()
+      })
+    })
   }
 })

From d7a533d6f85aae52aed03202fa5ccb774f0cb2ec Mon Sep 17 00:00:00 2001
From: Guillaume Chau <guillaume.b.chau@gmail.com>
Date: Thu, 20 Dec 2018 21:26:12 +0100
Subject: [PATCH 655/911] feat(ssr): ssrPrefetch option + context.rendered hook
 (#9017)

---
 flow/options.js               |   1 +
 src/server/create-renderer.js |  15 +++
 src/server/render-stream.js   |   1 +
 src/server/render.js          |  49 +++++++--
 src/shared/constants.js       |   3 +-
 test/ssr/ssr-stream.spec.js   |  22 ++++
 test/ssr/ssr-string.spec.js   | 188 ++++++++++++++++++++++++++++++++++
 test/ssr/ssr-template.spec.js |  75 ++++++++++++++
 types/options.d.ts            |   1 +
 types/test/options-test.ts    |   3 +
 10 files changed, 349 insertions(+), 9 deletions(-)

diff --git a/flow/options.js b/flow/options.js
index 2e138a62ab9..ceaf8571e62 100644
--- a/flow/options.js
+++ b/flow/options.js
@@ -44,6 +44,7 @@ declare type ComponentOptions = {
   beforeDestroy?: Function;
   destroyed?: Function;
   errorCaptured?: () => boolean | void;
+  ssrPrefetch?: Function;
 
   // assets
   directives?: { [key: string]: Object };
diff --git a/src/server/create-renderer.js b/src/server/create-renderer.js
index c045a426fe6..0d335462147 100644
--- a/src/server/create-renderer.js
+++ b/src/server/create-renderer.js
@@ -79,6 +79,9 @@ export function createRenderer ({
       }, cb)
       try {
         render(component, write, context, err => {
+          if (context && context.rendered) {
+            context.rendered(context)
+          }
           if (template) {
             result = templateRenderer.renderSync(result, context)
           }
@@ -106,6 +109,12 @@ export function createRenderer ({
         render(component, write, context, done)
       })
       if (!template) {
+        if (context && context.rendered) {
+          const rendered = context.rendered
+          renderStream.once('beforeEnd', () => {
+            rendered(context)
+          })
+        }
         return renderStream
       } else {
         const templateStream = templateRenderer.createStream(context)
@@ -113,6 +122,12 @@ export function createRenderer ({
           templateStream.emit('error', err)
         })
         renderStream.pipe(templateStream)
+        if (context && context.rendered) {
+          const rendered = context.rendered
+          renderStream.once('beforeEnd', () => {
+            rendered(context)
+          })
+        }
         return templateStream
       }
     }
diff --git a/src/server/render-stream.js b/src/server/render-stream.js
index d76012afb5b..bc358e20e95 100644
--- a/src/server/render-stream.js
+++ b/src/server/render-stream.js
@@ -42,6 +42,7 @@ export default class RenderStream extends stream.Readable {
     })
 
     this.end = () => {
+      this.emit('beforeEnd')
       // the rendering is finished; we should push out the last of the buffer.
       this.done = true
       this.push(this.buffer)
diff --git a/src/server/render.js b/src/server/render.js
index 581a6dfd52c..e6195e0038d 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -19,6 +19,7 @@ let warned = Object.create(null)
 const warnOnce = msg => {
   if (!warned[msg]) {
     warned[msg] = true
+    // eslint-disable-next-line no-console
     console.warn(`\n\u001b[31m${msg}\u001b[39m\n`)
   }
 }
@@ -49,6 +50,27 @@ const normalizeRender = vm => {
   }
 }
 
+function waitForSsrPrefetch (vm, resolve, reject) {
+  let handlers = vm.$options.ssrPrefetch
+  if (isDef(handlers)) {
+    if (!Array.isArray(handlers)) handlers = [handlers]
+    try {
+      const promises = []
+      for (let i = 0, j = handlers.length; i < j; i++) {
+        const result = handlers[i].call(vm, vm)
+        if (result && typeof result.then === 'function') {
+          promises.push(result)
+        }
+      }
+      Promise.all(promises).then(resolve).catch(reject)
+      return
+    } catch (e) {
+      reject(e)
+    }
+  }
+  resolve()
+}
+
 function renderNode (node, isRoot, context) {
   if (node.isString) {
     renderStringNode(node, context)
@@ -166,13 +188,20 @@ function renderComponentInner (node, isRoot, context) {
     context.activeInstance
   )
   normalizeRender(child)
-  const childNode = child._render()
-  childNode.parent = node
-  context.renderStates.push({
-    type: 'Component',
-    prevActive
-  })
-  renderNode(childNode, isRoot, context)
+  
+  const resolve = () => {
+    const childNode = child._render()
+    childNode.parent = node
+    context.renderStates.push({
+      type: 'Component',
+      prevActive
+    })
+    renderNode(childNode, isRoot, context)
+  }
+
+  const reject = context.done
+
+  waitForSsrPrefetch(child, resolve, reject)
 }
 
 function renderAsyncComponent (node, isRoot, context) {
@@ -394,6 +423,10 @@ export function createRenderFunction (
     })
     installSSRHelpers(component)
     normalizeRender(component)
-    renderNode(component._render(), true, context)
+
+    const resolve = () => {
+      renderNode(component._render(), true, context)
+    }
+    waitForSsrPrefetch(component, resolve, done)
   }
 }
diff --git a/src/shared/constants.js b/src/shared/constants.js
index 84d019fb4ca..018d657b662 100644
--- a/src/shared/constants.js
+++ b/src/shared/constants.js
@@ -17,5 +17,6 @@ export const LIFECYCLE_HOOKS = [
   'destroyed',
   'activated',
   'deactivated',
-  'errorCaptured'
+  'errorCaptured',
+  'ssrPrefetch'
 ]
diff --git a/test/ssr/ssr-stream.spec.js b/test/ssr/ssr-stream.spec.js
index 5973b5ed0d8..04e79658984 100644
--- a/test/ssr/ssr-stream.spec.js
+++ b/test/ssr/ssr-stream.spec.js
@@ -102,4 +102,26 @@ describe('SSR: renderToStream', () => {
     stream1.read(1)
     stream2.read(1)
   })
+
+  it('should call context.rendered', done => {
+    let a = 0
+    const stream = renderToStream(new Vue({
+      template: `
+        <div>Hello</div>
+      `
+    }), {
+      rendered: () => {
+        a = 42
+      }
+    })
+    let res = ''
+    stream.on('data', chunk => {
+      res += chunk
+    })
+    stream.on('end', () => {
+      expect(res).toContain('<div data-server-rendered="true">Hello</div>')
+      expect(a).toBe(42)
+      done()
+    })
+  })
 })
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 2f98bab8fae..112b50e1b18 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1311,6 +1311,194 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('should support ssrPrefetch option', done => {
+    renderVmWithOptions({
+      template: `
+        <div>{{ count }}</div>
+      `,
+      data: {
+        count: 0
+      },
+      ssrPrefetch () {
+        return new Promise((resolve) => {
+          setTimeout(() => {
+            this.count = 42
+            resolve()
+          }, 1)
+        })
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true">42</div>')
+      done()
+    })
+  })
+
+  it('should support ssrPrefetch option (nested)', done => {
+    renderVmWithOptions({
+      template: `
+        <div>
+          <span>{{ count }}</span>
+          <nested-prefetch></nested-prefetch>
+        </div>
+      `,
+      data: {
+        count: 0
+      },
+      ssrPrefetch () {
+        return new Promise((resolve) => {
+          setTimeout(() => {
+            this.count = 42
+            resolve()
+          }, 1)
+        })
+      },
+      components: {
+        nestedPrefetch: {
+          template: `
+            <div>{{ message }}</div>
+          `,
+          data () {
+            return {
+              message: ''
+            }
+          },
+          ssrPrefetch () {
+            return new Promise((resolve) => {
+              setTimeout(() => {
+                this.message = 'vue.js'
+                resolve()
+              }, 1)
+            })
+          }
+        }
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true"><span>42</span> <div>vue.js</div></div>')
+      done()
+    })
+  })
+
+  it('should support ssrPrefetch option (nested async)', done => {
+    renderVmWithOptions({
+      template: `
+        <div>
+          <span>{{ count }}</span>
+          <nested-prefetch></nested-prefetch>
+        </div>
+      `,
+      data: {
+        count: 0
+      },
+      ssrPrefetch () {
+        return new Promise((resolve) => {
+          setTimeout(() => {
+            this.count = 42
+            resolve()
+          }, 1)
+        })
+      },
+      components: {
+        nestedPrefetch (resolve) {
+          resolve({
+            template: `
+              <div>{{ message }}</div>
+            `,
+            data () {
+              return {
+                message: ''
+              }
+            },
+            ssrPrefetch () {
+              return new Promise((resolve) => {
+                setTimeout(() => {
+                  this.message = 'vue.js'
+                  resolve()
+                }, 1)
+              })
+            }
+          })
+        }
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true"><span>42</span> <div>vue.js</div></div>')
+      done()
+    })
+  })
+
+  it('should merge ssrPrefetch option', done => {
+    const mixin = {
+      data: {
+        message: ''
+      },
+      ssrPrefetch () {
+        return new Promise((resolve) => {
+          setTimeout(() => {
+            this.message = 'vue.js'
+            resolve()
+          }, 1)
+        })
+      }
+    }
+    renderVmWithOptions({
+      mixins: [mixin],
+      template: `
+        <div>
+          <span>{{ count }}</span>
+          <div>{{ message }}</div>
+        </div>
+      `,
+      data: {
+        count: 0
+      },
+      ssrPrefetch () {
+        return new Promise((resolve) => {
+          setTimeout(() => {
+            this.count = 42
+            resolve()
+          }, 1)
+        })
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true"><span>42</span> <div>vue.js</div></div>')
+      done()
+    })
+  })
+
+  it(`should skip ssrPrefetch option that doesn't return a promise`, done => {
+    renderVmWithOptions({
+      template: `
+        <div>{{ count }}</div>
+      `,
+      data: {
+        count: 0
+      },
+      ssrPrefetch () {
+        setTimeout(() => {
+          this.count = 42
+        }, 1)
+      }
+    }, result => {
+      expect(result).toContain('<div data-server-rendered="true">0</div>')
+      done()
+    })
+  })
+
+  it('should call context.rendered', done => {
+    let a = 0
+    renderToString(new Vue({
+      template: '<div>Hello</div>'
+    }), {
+      rendered: () => {
+        a = 42
+      }
+    }, (err, res) => {
+      expect(err).toBeNull()
+      expect(res).toContain('<div data-server-rendered="true">Hello</div>')
+      expect(a).toBe(42)
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {
diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index cf1ec6579e4..c9cc001b7bd 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -99,6 +99,41 @@ describe('SSR: template option', () => {
     })
   })
 
+  it('renderToString with interpolation and context.rendered', done => {
+    const renderer = createRenderer({
+      template: interpolateTemplate
+    })
+
+    const context = {
+      title: '<script>hacks</script>',
+      snippet: '<div>foo</div>',
+      head: '<meta name="viewport" content="width=device-width">',
+      styles: '<style>h1 { color: red }</style>',
+      state: { a: 0 },
+      rendered: context => {
+        context.state.a = 1
+      }
+    }
+
+    renderer.renderToString(new Vue({
+      template: '<div>hi</div>'
+    }), context, (err, res) => {
+      expect(err).toBeNull()
+      expect(res).toContain(
+        `<html><head>` +
+        // double mustache should be escaped
+        `<title>&lt;script&gt;hacks&lt;/script&gt;</title>` +
+        `${context.head}${context.styles}</head><body>` +
+        `<div data-server-rendered="true">hi</div>` +
+        `<script>window.__INITIAL_STATE__={"a":1}</script>` +
+        // triple should be raw
+        `<div>foo</div>` +
+        `</body></html>`
+      )
+      done()
+    })
+  })
+
   it('renderToStream', done => {
     const renderer = createRenderer({
       template: defaultTemplate
@@ -166,6 +201,46 @@ describe('SSR: template option', () => {
     })
   })
 
+  it('renderToStream with interpolation and context.rendered', done => {
+    const renderer = createRenderer({
+      template: interpolateTemplate
+    })
+
+    const context = {
+      title: '<script>hacks</script>',
+      snippet: '<div>foo</div>',
+      head: '<meta name="viewport" content="width=device-width">',
+      styles: '<style>h1 { color: red }</style>',
+      state: { a: 0 },
+      rendered: context => {
+        context.state.a = 1
+      }
+    }
+
+    const stream = renderer.renderToStream(new Vue({
+      template: '<div>hi</div>'
+    }), context)
+
+    let res = ''
+    stream.on('data', chunk => {
+      res += chunk
+    })
+    stream.on('end', () => {
+      expect(res).toContain(
+        `<html><head>` +
+        // double mustache should be escaped
+        `<title>&lt;script&gt;hacks&lt;/script&gt;</title>` +
+        `${context.head}${context.styles}</head><body>` +
+        `<div data-server-rendered="true">hi</div>` +
+        `<script>window.__INITIAL_STATE__={"a":1}</script>` +
+        // triple should be raw
+        `<div>foo</div>` +
+        `</body></html>`
+      )
+      done()
+    })
+  })
+
   it('bundleRenderer + renderToString', done => {
     createBundleRenderer('app.js', {
       asBundle: true,
diff --git a/types/options.d.ts b/types/options.d.ts
index d43b58d2ef2..0e98b4a9626 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -96,6 +96,7 @@ export interface ComponentOptions<
   activated?(): void;
   deactivated?(): void;
   errorCaptured?(err: Error, vm: Vue, info: string): boolean | void;
+  ssrPrefetch?(this: V): Promise<void>;
 
   directives?: { [key: string]: DirectiveFunction | DirectiveOptions };
   components?: { [key: string]: Component<any, any, any, any> | AsyncComponent<any, any, any, any> };
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index ce0e68deccb..4041aad44b1 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -241,6 +241,9 @@ Vue.component('component', {
     info.toUpperCase()
     return true
   },
+  ssrPrefetch () {
+    return Promise.resolve()
+  },
 
   directives: {
     a: {

From ab24285458c98e25d5749beb4edebef73672de4b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 20 Dec 2018 15:47:15 -0500
Subject: [PATCH 656/911] feat(ssr): allow opting-out of caching by returning
 false in serverCacheKey

close #8790
---
 src/server/render.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/server/render.js b/src/server/render.js
index e6195e0038d..4552bea8399 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -114,7 +114,12 @@ function renderComponent (node, isRoot, context) {
   const registerComponent = registerComponentForCache(Ctor.options, write)
 
   if (isDef(getKey) && isDef(cache) && isDef(name)) {
-    const key = name + '::' + getKey(node.componentOptions.propsData)
+    const rawKey = getKey(node.componentOptions.propsData)
+    if (rawKey === false) {
+      renderComponentInner(node, isRoot, context)
+      return
+    }
+    const key = name + '::' + rawKey
     const { has, get } = context
     if (isDef(has)) {
       has(key, hit => {
@@ -188,7 +193,7 @@ function renderComponentInner (node, isRoot, context) {
     context.activeInstance
   )
   normalizeRender(child)
-  
+
   const resolve = () => {
     const childNode = child._render()
     childNode.parent = node

From 7ebabe2392d3376a97492209e2895122e5a54bd2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 20 Dec 2018 15:54:35 -0500
Subject: [PATCH 657/911] test: test for #8790

---
 test/ssr/fixtures/cache-opt-out.js | 16 +++++++++++++
 test/ssr/ssr-bundle-render.spec.js | 38 ++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 test/ssr/fixtures/cache-opt-out.js

diff --git a/test/ssr/fixtures/cache-opt-out.js b/test/ssr/fixtures/cache-opt-out.js
new file mode 100644
index 00000000000..772d403c04d
--- /dev/null
+++ b/test/ssr/fixtures/cache-opt-out.js
@@ -0,0 +1,16 @@
+import Vue from '../../../dist/vue.runtime.common.js'
+
+const app = {
+  name: 'app',
+  props: ['id'],
+  serverCacheKey: props => props.id === 1 ? false : props.id,
+  render (h) {
+    return h('div', '/test')
+  }
+}
+
+export default () => {
+  return Promise.resolve(new Vue({
+    render: h => h(app, { props: { id: 1 }})
+  }))
+}
diff --git a/test/ssr/ssr-bundle-render.spec.js b/test/ssr/ssr-bundle-render.spec.js
index 8ea05b32172..fd4df44a706 100644
--- a/test/ssr/ssr-bundle-render.spec.js
+++ b/test/ssr/ssr-bundle-render.spec.js
@@ -231,6 +231,44 @@ function createAssertions (runInNewContext) {
     })
   })
 
+  it('render with cache (opt-out)', done => {
+    const cache = {}
+    const get = jasmine.createSpy('get')
+    const set = jasmine.createSpy('set')
+    const options = {
+      runInNewContext,
+      cache: {
+        // async
+        get: (key, cb) => {
+          setTimeout(() => {
+            get(key)
+            cb(cache[key])
+          }, 0)
+        },
+        set: (key, val) => {
+          set(key, val)
+          cache[key] = val
+        }
+      }
+    }
+    createRenderer('cache-opt-out.js', options, renderer => {
+      const expected = '<div data-server-rendered="true">/test</div>'
+      renderer.renderToString((err, res) => {
+        expect(err).toBeNull()
+        expect(res).toBe(expected)
+        expect(get).not.toHaveBeenCalled()
+        expect(set).not.toHaveBeenCalled()
+        renderer.renderToString((err, res) => {
+          expect(err).toBeNull()
+          expect(res).toBe(expected)
+          expect(get).not.toHaveBeenCalled()
+          expect(set).not.toHaveBeenCalled()
+          done()
+        })
+      })
+    })
+  })
+
   it('renderToString (bundle format with code split)', done => {
     createRenderer('split.js', { runInNewContext, asBundle: true }, renderer => {
       const context = { url: '/test' }

From 44940121eef4e2df5f3cb3c21f3f468af8b336bc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 20 Dec 2018 16:08:58 -0500
Subject: [PATCH 658/911] feat(ssr): add custom state serializer option

close #6614
---
 src/server/create-renderer.js         |  7 +++++--
 src/server/template-renderer/index.js |  9 ++++++++-
 test/ssr/ssr-template.spec.js         | 22 ++++++++++++++++++++++
 3 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/src/server/create-renderer.js b/src/server/create-renderer.js
index 0d335462147..1cfbfb0ddd9 100644
--- a/src/server/create-renderer.js
+++ b/src/server/create-renderer.js
@@ -29,6 +29,7 @@ export type RenderOptions = {
   shouldPreload?: Function;
   shouldPrefetch?: Function;
   clientManifest?: ClientManifest;
+  serializer?: Function;
   runInNewContext?: boolean | 'once';
 };
 
@@ -41,7 +42,8 @@ export function createRenderer ({
   cache,
   shouldPreload,
   shouldPrefetch,
-  clientManifest
+  clientManifest,
+  serializer
 }: RenderOptions = {}): Renderer {
   const render = createRenderFunction(modules, directives, isUnaryTag, cache)
   const templateRenderer = new TemplateRenderer({
@@ -49,7 +51,8 @@ export function createRenderer ({
     inject,
     shouldPreload,
     shouldPrefetch,
-    clientManifest
+    clientManifest,
+    serializer
   })
 
   return {
diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index 0233d157646..269673fb3d7 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -16,6 +16,7 @@ type TemplateRendererOptions = {
   clientManifest?: ClientManifest;
   shouldPreload?: (file: string, type: string) => boolean;
   shouldPrefetch?: (file: string, type: string) => boolean;
+  serializer?: Function;
 };
 
 export type ClientManifest = {
@@ -47,6 +48,7 @@ export default class TemplateRenderer {
   preloadFiles: Array<Resource>;
   prefetchFiles: Array<Resource>;
   mapFiles: AsyncFileMapper;
+  serialize: Function;
 
   constructor (options: TemplateRendererOptions) {
     this.options = options
@@ -57,6 +59,11 @@ export default class TemplateRenderer {
       ? parseTemplate(options.template)
       : null
 
+    // function used to serialize initial state JSON
+    this.serialize = options.serializer || (state => {
+      return serialize(state, { isJSON: true })
+    })
+
     // extra functionality with client manifest
     if (options.clientManifest) {
       const clientManifest = this.clientManifest = options.clientManifest
@@ -194,7 +201,7 @@ export default class TemplateRenderer {
       contextKey = 'state',
       windowKey = '__INITIAL_STATE__'
     } = options || {}
-    const state = serialize(context[contextKey], { isJSON: true })
+    const state = this.serialize(context[contextKey])
     const autoRemove = process.env.NODE_ENV === 'production'
       ? ';(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());'
       : ''
diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index c9cc001b7bd..d3e81e83159 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -489,5 +489,27 @@ describe('SSR: template option', () => {
         done()
       })
     })
+
+    it('renderToString + custom serializer', done => {
+      const expected = `{"foo":123}`
+      const renderer = createRenderer({
+        template: defaultTemplate,
+        serializer: () => expected
+      })
+
+      const context = {
+        state: { a: 1 }
+      }
+
+      renderer.renderToString(new Vue({
+        template: '<div>hi</div>'
+      }), context, (err, res) => {
+        expect(err).toBeNull()
+        expect(res).toContain(
+          `<script>window.__INITIAL_STATE__=${expected}</script>`
+        )
+        done()
+      })
+    })
   }
 })

From 22ad26615104c15fd09bc69692e3042bb1bb58e9 Mon Sep 17 00:00:00 2001
From: Alejandro Maguey <alejandro.maguey@globant.com>
Date: Thu, 20 Dec 2018 16:05:05 -0600
Subject: [PATCH 659/911] fix(runtime): DevTools recommendation shows for all
 browsers (#8638)

Close #8634
---
 src/platforms/web/runtime/index.js | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/platforms/web/runtime/index.js b/src/platforms/web/runtime/index.js
index 1283f521aaa..fe29b22aeb1 100644
--- a/src/platforms/web/runtime/index.js
+++ b/src/platforms/web/runtime/index.js
@@ -4,7 +4,7 @@ import Vue from 'core/index'
 import config from 'core/config'
 import { extend, noop } from 'shared/util'
 import { mountComponent } from 'core/instance/lifecycle'
-import { devtools, inBrowser, isChrome } from 'core/util/index'
+import { devtools, inBrowser } from 'core/util/index'
 
 import {
   query,
@@ -51,8 +51,7 @@ if (inBrowser) {
         devtools.emit('init', Vue)
       } else if (
         process.env.NODE_ENV !== 'production' &&
-        process.env.NODE_ENV !== 'test' &&
-        isChrome
+        process.env.NODE_ENV !== 'test'
       ) {
         console[console.info ? 'info' : 'log'](
           'Download the Vue Devtools extension for a better development experience:\n' +

From a981c80d2aedb0d56f98865e39c981819fbf65d0 Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Fri, 21 Dec 2018 06:07:34 +0800
Subject: [PATCH 660/911] feat: support v-html for SVG elements (#8652)

---
 src/platforms/web/runtime/modules/dom-props.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index da8143bf81e..28ee59eefc7 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -1,6 +1,9 @@
 /* @flow */
 
 import { isDef, isUndef, extend, toNumber } from 'shared/util'
+import { isSVG } from 'web/util/index'
+
+let svgContainer
 
 function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
@@ -55,6 +58,17 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur
       }
+    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+      // IE doesn't support innerHTML for SVG elements
+      svgContainer = svgContainer || document.createElement('div')
+      svgContainer.innerHTML = `<svg>${cur}</svg>`
+      const svg = svgContainer.firstChild
+      while (elm.firstChild) {
+        elm.removeChild(elm.firstChild)
+      }
+      while (svg.firstChild) {
+        elm.appendChild(svg.firstChild)
+      }
     } else {
       elm[key] = cur
     }

From bf0efb02b1f52cceb0bad8588cf6c90e22349049 Mon Sep 17 00:00:00 2001
From: Zhenfei You <hello@imyzf.com>
Date: Sat, 22 Dec 2018 00:59:34 +0800
Subject: [PATCH 661/911] feat(compiler): support deindent: false in
 vue-template-compiler (#7215)

close #7054
---
 src/sfc/parser.js                        |  5 ++++-
 test/unit/modules/sfc/sfc-parser.spec.js | 27 ++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/src/sfc/parser.js b/src/sfc/parser.js
index d7868a40ab8..1e6f32acf20 100644
--- a/src/sfc/parser.js
+++ b/src/sfc/parser.js
@@ -83,7 +83,10 @@ export function parseComponent (
   function end (tag: string, start: number) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start
-      let text = deindent(content.slice(currentBlock.start, currentBlock.end))
+      let text = content.slice(currentBlock.start, currentBlock.end)
+      if (options.deindent !== false) {
+        text = deindent(text)
+      }
       // pad content so that linters and pre-processors can output correct
       // line numbers in errors and warnings
       if (currentBlock.type !== 'template' && options.pad) {
diff --git a/test/unit/modules/sfc/sfc-parser.spec.js b/test/unit/modules/sfc/sfc-parser.spec.js
index 4cf6bad574a..ecc97fc5c33 100644
--- a/test/unit/modules/sfc/sfc-parser.spec.js
+++ b/test/unit/modules/sfc/sfc-parser.spec.js
@@ -55,6 +55,33 @@ describe('Single File Component parser', () => {
     expect(res.template.content.trim()).toBe('<div><template v-if="ok">hi</template></div>')
   })
 
+  it('deindent content', () => {
+    const content = `
+      <template>
+        <div></div>
+      </template>
+      <script>
+        export default {}
+      </script>
+      <style>
+        h1 { color: red }
+      </style>
+    `
+    const deindentDefault = parseComponent(content.trim(), { pad: false })
+    const deindentEnabled = parseComponent(content.trim(), { pad: false, deindent: true })
+    const deindentDisabled = parseComponent(content.trim(), { pad: false, deindent: false })
+
+    expect(deindentDefault.template.content).toBe('\n<div></div>\n')
+    expect(deindentDefault.script.content).toBe('\nexport default {}\n')
+    expect(deindentDefault.styles[0].content).toBe('\nh1 { color: red }\n')
+    expect(deindentEnabled.template.content).toBe('\n<div></div>\n')
+    expect(deindentEnabled.script.content).toBe('\nexport default {}\n')
+    expect(deindentEnabled.styles[0].content).toBe('\nh1 { color: red }\n')
+    expect(deindentDisabled.template.content).toBe('\n        <div></div>\n      ')
+    expect(deindentDisabled.script.content).toBe('\n        export default {}\n      ')
+    expect(deindentDisabled.styles[0].content).toBe('\n        h1 { color: red }\n      ')
+  })
+
   it('pad content', () => {
     const content = `
       <template>

From 5ab028a9128b289b0c840bdb6901021fc482e6f5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 21 Dec 2018 12:26:24 -0500
Subject: [PATCH 662/911] refactor: speed up injection resolution

---
 src/core/instance/inject.js | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/core/instance/inject.js b/src/core/instance/inject.js
index e464e12a997..b04184e516a 100644
--- a/src/core/instance/inject.js
+++ b/src/core/instance/inject.js
@@ -41,14 +41,13 @@ export function resolveInject (inject: any, vm: Component): ?Object {
     // inject is :any because flow is not smart enough to figure out cached
     const result = Object.create(null)
     const keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(key => {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
+      ? Reflect.ownKeys(inject)
       : Object.keys(inject)
 
     for (let i = 0; i < keys.length; i++) {
       const key = keys[i]
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') continue
       const provideKey = inject[key].from
       let source = vm
       while (source) {

From 1933ee80ff808b81a691fa6a135c1588d218bc0a Mon Sep 17 00:00:00 2001
From: Hiroki Osame <hiroki.osame@gmail.com>
Date: Fri, 21 Dec 2018 09:49:21 -0800
Subject: [PATCH 663/911] fix(provide/inject): Merges symbol provides (#7926)

---
 src/core/util/options.js                  |  9 +++++++-
 test/unit/features/options/inject.spec.js | 26 +++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index fc7826dc01d..5e28a408efc 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -4,6 +4,7 @@ import config from '../config'
 import { warn } from './debug'
 import { nativeWatch } from './env'
 import { set } from '../observer/index'
+import { hasSymbol } from '../util/index'
 
 import {
   ASSET_TYPES,
@@ -48,9 +49,15 @@ if (process.env.NODE_ENV !== 'production') {
 function mergeData (to: Object, from: ?Object): Object {
   if (!from) return to
   let key, toVal, fromVal
-  const keys = Object.keys(from)
+
+  const keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from)
+
   for (let i = 0; i < keys.length; i++) {
     key = keys[i]
+    // in case the object is already observed...
+    if (key === '__ob__') continue
     toVal = to[key]
     fromVal = from[key]
     if (!hasOwn(to, key)) {
diff --git a/test/unit/features/options/inject.spec.js b/test/unit/features/options/inject.spec.js
index 53f55e1ecf2..3b47ef566f0 100644
--- a/test/unit/features/options/inject.spec.js
+++ b/test/unit/features/options/inject.spec.js
@@ -188,6 +188,32 @@ describe('Options provide/inject', () => {
       }).$mount()
       expect(vm.$el.textContent).toBe('123')
     })
+
+    it('should merge symbol provide from mixins (functions)', () => {
+      const keyA = Symbol('foo')
+      const keyB = Symbol('bar')
+
+      const mixinA = { provide: () => ({ [keyA]: 'foo' }) }
+      const mixinB = { provide: () => ({ [keyB]: 'bar' }) }
+      const child = {
+        inject: {
+          foo: keyA,
+          bar: keyB
+        },
+        template: `<span/>`,
+        created () {
+          injected = [this.foo, this.bar]
+        }
+      }
+      new Vue({
+        mixins: [mixinA, mixinB],
+        render (h) {
+          return h(child)
+        }
+      }).$mount()
+
+      expect(injected).toEqual(['foo', 'bar'])
+    })
   }
 
   // GitHub issue #5223

From 0e4e45ec741416e0042c29a53bbc0e58c8663f6e Mon Sep 17 00:00:00 2001
From: Mathieu TUDISCO <dev@mathieutu.ovh>
Date: Fri, 21 Dec 2018 19:13:48 +0100
Subject: [PATCH 664/911] feat: support custom toString() in text interpolation
 and v-html (#8217)

close #8093
---
 src/shared/util.js                         | 2 +-
 test/unit/features/directives/html.spec.js | 6 ++++++
 test/unit/features/directives/text.spec.js | 6 ++++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/shared/util.js b/src/shared/util.js
index 396e9ba84c0..9f240c77b14 100644
--- a/src/shared/util.js
+++ b/src/shared/util.js
@@ -85,7 +85,7 @@ export function isPromise (val: any): boolean {
 export function toString (val: any): string {
   return val == null
     ? ''
-    : typeof val === 'object'
+    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
       ? JSON.stringify(val, null, 2)
       : String(val)
 }
diff --git a/test/unit/features/directives/html.spec.js b/test/unit/features/directives/html.spec.js
index c398828ac1d..5e67c815b2e 100644
--- a/test/unit/features/directives/html.spec.js
+++ b/test/unit/features/directives/html.spec.js
@@ -44,6 +44,12 @@ describe('Directive v-html', () => {
       vm.a = {}
     }).then(() => {
       expect(vm.$el.innerHTML).toBe('{}')
+      vm.a = { toString () { return 'foo' } }
+    }).then(() => {
+      expect(vm.$el.innerHTML).toBe('foo')
+      vm.a = { toJSON () { return { foo: 'bar' } } }
+    }).then(() => {
+      expect(vm.$el.innerHTML).toBe('{\n  "foo": "bar"\n}')
       vm.a = 123
     }).then(() => {
       expect(vm.$el.innerHTML).toBe('123')
diff --git a/test/unit/features/directives/text.spec.js b/test/unit/features/directives/text.spec.js
index 477badf9b9b..84f9bbe5db7 100644
--- a/test/unit/features/directives/text.spec.js
+++ b/test/unit/features/directives/text.spec.js
@@ -30,6 +30,12 @@ describe('Directive v-text', () => {
       vm.a = {}
     }).then(() => {
       expect(vm.$el.innerHTML).toBe('{}')
+      vm.a = { toString () { return 'foo' } }
+    }).then(() => {
+      expect(vm.$el.innerHTML).toBe('foo')
+      vm.a = { toJSON () { return { foo: 'bar' } } }
+    }).then(() => {
+      expect(vm.$el.innerHTML).toBe('{\n  "foo": "bar"\n}')
       vm.a = 123
     }).then(() => {
       expect(vm.$el.innerHTML).toBe('123')

From 3fca52792ef83fa58a5c28882706d9e8a039790d Mon Sep 17 00:00:00 2001
From: Divya <hello@shortdiv.com>
Date: Fri, 21 Dec 2018 12:34:17 -0600
Subject: [PATCH 665/911] feat: v-bind.sync also listens for kebab-case update
 event (#8297)

 fix #6428
---
 src/compiler/parser/index.js               | 14 +++++++++++---
 test/unit/features/directives/bind.spec.js | 21 +++++++++++++++++++++
 2 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 9428cf75e3b..435009211c5 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -5,7 +5,7 @@ import { parseHTML } from './html-parser'
 import { parseText } from './text-parser'
 import { parseFilters } from './filter-parser'
 import { genAssignmentCode } from '../directives/model'
-import { extend, cached, no, camelize } from 'shared/util'
+import { extend, cached, no, camelize, hyphenate } from 'shared/util'
 import { isIE, isEdge, isServerRendering } from 'core/util/env'
 
 import {
@@ -524,7 +524,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   const list = el.attrsList
-  let i, l, name, rawName, value, modifiers, isProp
+  let i, l, name, rawName, value, modifiers, isProp, syncGen
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name
     value = list[i].value
@@ -558,11 +558,19 @@ function processAttrs (el) {
             name = camelize(name)
           }
           if (modifiers.sync) {
+            syncGen = genAssignmentCode(value, `$event`)
             addHandler(
               el,
               `update:${camelize(name)}`,
-              genAssignmentCode(value, `$event`)
+              syncGen
             )
+            if (hyphenate(name) !== camelize(name)) {
+              addHandler(
+                el,
+                `update:${hyphenate(name)}`,
+                syncGen
+              )
+            }
           }
         }
         if (isProp || (
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index 52bc8168dac..b8003158bb1 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -166,6 +166,27 @@ describe('Directive v-bind', () => {
     }).then(done)
   })
 
+  it('.sync modifier with kebab case event', done => {
+    const vm = new Vue({
+      template: `<test :foo-bar.sync="bar"/>`,
+      data: {
+        bar: 1
+      },
+      components: {
+        test: {
+          props: ['fooBar'],
+          template: `<div @click="$emit('update:foo-bar', 2)">{{ fooBar }}</div>`
+        }
+      }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('1')
+    triggerEvent(vm.$el, 'click')
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe('2')
+    }).then(done)
+  })
+
   it('bind object', done => {
     const vm = new Vue({
       template: '<input v-bind="test">',

From 1c105fb16c1b2395790740efce10b137f2f36c19 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 21 Dec 2018 14:29:57 -0500
Subject: [PATCH 666/911] test: fix test case for #8297

---
 test/unit/features/directives/bind.spec.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index b8003158bb1..e58802bc89c 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -168,20 +168,25 @@ describe('Directive v-bind', () => {
 
   it('.sync modifier with kebab case event', done => {
     const vm = new Vue({
-      template: `<test :foo-bar.sync="bar"/>`,
+      template: `<test ref="test" :foo-bar.sync="bar"/>`,
       data: {
         bar: 1
       },
       components: {
         test: {
           props: ['fooBar'],
-          template: `<div @click="$emit('update:foo-bar', 2)">{{ fooBar }}</div>`
+          template: `<div>{{ fooBar }}</div>`,
+          methods: {
+            update () {
+              this.$emit('update:foo-bar', 2)
+            }
+          }
         }
       }
     }).$mount()
 
     expect(vm.$el.textContent).toBe('1')
-    triggerEvent(vm.$el, 'click')
+    vm.$refs.test.update()
     waitForUpdate(() => {
       expect(vm.$el.textContent).toBe('2')
     }).then(done)

From d08b49f520e0704f9d4e61be4f751e3b2cdac6a8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 21 Dec 2018 14:46:18 -0500
Subject: [PATCH 667/911] fix: make transition-group key warning a tip to avoid
 breaking compilation

---
 src/compiler/parser/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 435009211c5..9bcd42f9ed8 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -341,7 +341,8 @@ function processKey (el) {
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn(
             `Do not use v-for index as key on <transition-group> children, ` +
-            `this is the same as not using keys.`
+            `this is the same as not using keys.`,
+            true /* tip */
           )
         }
       }

From b31a1aa8870474b2ca782c45d55edac2932d4cc2 Mon Sep 17 00:00:00 2001
From: Jason <jason.daurus@gmail.com>
Date: Sat, 22 Dec 2018 10:58:32 +0800
Subject: [PATCH 668/911] feat(compiler): output source range for compiler
 errors (#7127)

ref #6338
---
 flow/compiler.js                              |  33 +++-
 src/compiler/codegen/index.js                 |  11 +-
 src/compiler/create-compiler.js               |  26 +++-
 src/compiler/error-detector.js                |  57 +++----
 src/compiler/helpers.js                       |  57 +++++--
 src/compiler/optimizer.js                     |   2 +-
 src/compiler/parser/html-parser.js            |  23 ++-
 src/compiler/parser/index.js                  | 144 ++++++++++++------
 src/platforms/web/compiler/directives/html.js |   2 +-
 .../web/compiler/directives/model.js          |   9 +-
 src/platforms/web/compiler/directives/text.js |   2 +-
 src/platforms/web/compiler/modules/class.js   |   3 +-
 src/platforms/web/compiler/modules/style.js   |   3 +-
 src/platforms/weex/compiler/modules/class.js  |   3 +-
 src/platforms/weex/compiler/modules/props.js  |   5 +
 src/platforms/weex/compiler/modules/style.js  |   3 +-
 src/server/optimizing-compiler/modules.js     |   8 +-
 src/server/optimizing-compiler/optimizer.js   |   1 +
 src/sfc/parser.js                             |  33 ++--
 .../modules/compiler/compiler-options.spec.js |  21 +++
 test/unit/modules/sfc/sfc-parser.spec.js      |   6 +
 21 files changed, 325 insertions(+), 127 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index a5f3304de52..a7acacee595 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -18,6 +18,7 @@ declare type CompilerOptions = {
   shouldDecodeTags?: boolean;
   shouldDecodeNewlines?:  boolean;
   shouldDecodeNewlinesForHref?: boolean;
+  outputSourceRange?: boolean;
 
   // runtime user-configurable
   delimiters?: [string, string]; // template delimiters
@@ -27,13 +28,19 @@ declare type CompilerOptions = {
   scopeId?: string;
 };
 
+declare type WarningMessage = {
+  msg: string;
+  start?: number;
+  end?: number;
+};
+
 declare type CompiledResult = {
   ast: ?ASTElement;
   render: string;
   staticRenderFns: Array<string>;
   stringRenderFns?: Array<string>;
-  errors?: Array<string>;
-  tips?: Array<string>;
+  errors?: Array<string | WarningMessage>;
+  tips?: Array<string | WarningMessage>;
 };
 
 declare type ModuleOptions = {
@@ -53,11 +60,14 @@ declare type ModuleOptions = {
 declare type ASTModifiers = { [key: string]: boolean };
 declare type ASTIfCondition = { exp: ?string; block: ASTElement };
 declare type ASTIfConditions = Array<ASTIfCondition>;
+declare type ASTAttr = { name: string; value: any; start?: number; end?: number };
 
 declare type ASTElementHandler = {
   value: string;
   params?: Array<any>;
   modifiers: ?ASTModifiers;
+  start?: number;
+  end?: number;
 };
 
 declare type ASTElementHandlers = {
@@ -70,6 +80,8 @@ declare type ASTDirective = {
   value: string;
   arg: ?string;
   modifiers: ?ASTModifiers;
+  start?: number;
+  end?: number;
 };
 
 declare type ASTNode = ASTElement | ASTText | ASTExpression;
@@ -77,11 +89,15 @@ declare type ASTNode = ASTElement | ASTText | ASTExpression;
 declare type ASTElement = {
   type: 1;
   tag: string;
-  attrsList: Array<{ name: string; value: any }>;
+  attrsList: Array<ASTAttr>;
   attrsMap: { [key: string]: any };
+  rawAttrsMap: { [key: string]: ASTAttr };
   parent: ASTElement | void;
   children: Array<ASTNode>;
 
+  start?: number;
+  end?: number;
+
   processed?: true;
 
   static?: boolean;
@@ -91,8 +107,8 @@ declare type ASTElement = {
   hasBindings?: boolean;
 
   text?: string;
-  attrs?: Array<{ name: string; value: any }>;
-  props?: Array<{ name: string; value: string }>;
+  attrs?: Array<ASTAttr>;
+  props?: Array<ASTAttr>;
   plain?: boolean;
   pre?: true;
   ns?: string;
@@ -160,6 +176,8 @@ declare type ASTExpression = {
   static?: boolean;
   // 2.4 ssr optimization
   ssrOptimizability?: number;
+  start?: number;
+  end?: number;
 };
 
 declare type ASTText = {
@@ -169,6 +187,8 @@ declare type ASTText = {
   isComment?: boolean;
   // 2.4 ssr optimization
   ssrOptimizability?: number;
+  start?: number;
+  end?: number;
 };
 
 // SFC-parser related declarations
@@ -179,7 +199,8 @@ declare type SFCDescriptor = {
   script: ?SFCBlock;
   styles: Array<SFCBlock>;
   customBlocks: Array<SFCBlock>;
-};
+  errors: Array<string | WarningMessage>;
+}
 
 declare type SFCBlock = {
   type: string;
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index d353b6457b1..5acc548a629 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -130,7 +130,8 @@ function genOnce (el: ASTElement, state: CodegenState): string {
     }
     if (!key) {
       process.env.NODE_ENV !== 'production' && state.warn(
-        `v-once can only be used inside v-for that is keyed. `
+        `v-once can only be used inside v-for that is keyed. `,
+        el.rawAttrsMap['v-once']
       )
       return genElement(el, state)
     }
@@ -202,6 +203,7 @@ export function genFor (
       `<${el.tag} v-for="${alias} in ${exp}">: component lists rendered with ` +
       `v-for should have explicit keys. ` +
       `See https://vuejs.org/guide/list.html#key for more info.`,
+      el.rawAttrsMap['v-for'],
       true /* tip */
     )
   }
@@ -333,7 +335,10 @@ function genInlineTemplate (el: ASTElement, state: CodegenState): ?string {
   if (process.env.NODE_ENV !== 'production' && (
     el.children.length !== 1 || ast.type !== 1
   )) {
-    state.warn('Inline-template components must have exactly one child element.')
+    state.warn(
+      'Inline-template components must have exactly one child element.',
+      { start: el.start }
+    )
   }
   if (ast.type === 1) {
     const inlineRenderFns = generate(ast, state.options)
@@ -503,7 +508,7 @@ function genComponent (
   })`
 }
 
-function genProps (props: Array<{ name: string, value: any }>): string {
+function genProps (props: Array<ASTAttr>): string {
   let res = ''
   for (let i = 0; i < props.length; i++) {
     const prop = props[i]
diff --git a/src/compiler/create-compiler.js b/src/compiler/create-compiler.js
index 6671dcfe385..67d2057adf9 100644
--- a/src/compiler/create-compiler.js
+++ b/src/compiler/create-compiler.js
@@ -13,11 +13,29 @@ export function createCompilerCreator (baseCompile: Function): Function {
       const finalOptions = Object.create(baseOptions)
       const errors = []
       const tips = []
-      finalOptions.warn = (msg, tip) => {
+
+      let warn = (msg, range, tip) => {
         (tip ? tips : errors).push(msg)
       }
 
       if (options) {
+        if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+          // $flow-disable-line
+          const leadingSpaceLength = template.match(/^\s*/)[0].length
+
+          warn = (msg, range, tip) => {
+            const data: WarningMessage = { msg }
+            if (range) {
+              if (range.start != null) {
+                data.start = range.start + leadingSpaceLength
+              }
+              if (range.end != null) {
+                data.end = range.end + leadingSpaceLength
+              }
+            }
+            (tip ? tips : errors).push(data)
+          }
+        }
         // merge custom modules
         if (options.modules) {
           finalOptions.modules =
@@ -38,9 +56,11 @@ export function createCompilerCreator (baseCompile: Function): Function {
         }
       }
 
-      const compiled = baseCompile(template, finalOptions)
+      finalOptions.warn = warn
+
+      const compiled = baseCompile(template.trim(), finalOptions)
       if (process.env.NODE_ENV !== 'production') {
-        errors.push.apply(errors, detectErrors(compiled.ast))
+        detectErrors(compiled.ast, warn)
       }
       compiled.errors = errors
       compiled.tips = tips
diff --git a/src/compiler/error-detector.js b/src/compiler/error-detector.js
index e729c499a33..22c3b75d3aa 100644
--- a/src/compiler/error-detector.js
+++ b/src/compiler/error-detector.js
@@ -2,6 +2,8 @@
 
 import { dirRE, onRE } from './parser/index'
 
+type Range = { start?: number, end?: number };
+
 // these keywords should not appear inside expressions, but operators like
 // typeof, instanceof and in are allowed
 const prohibitedKeywordRE = new RegExp('\\b' + (
@@ -19,89 +21,92 @@ const unaryOperatorsRE = new RegExp('\\b' + (
 const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g
 
 // detect problematic expressions in a template
-export function detectErrors (ast: ?ASTNode): Array<string> {
-  const errors: Array<string> = []
+export function detectErrors (ast: ?ASTNode, warn: Function) {
   if (ast) {
-    checkNode(ast, errors)
+    checkNode(ast, warn)
   }
-  return errors
 }
 
-function checkNode (node: ASTNode, errors: Array<string>) {
+function checkNode (node: ASTNode, warn: Function) {
   if (node.type === 1) {
     for (const name in node.attrsMap) {
       if (dirRE.test(name)) {
         const value = node.attrsMap[name]
         if (value) {
+          const range = node.rawAttrsMap[name]
           if (name === 'v-for') {
-            checkFor(node, `v-for="${value}"`, errors)
+            checkFor(node, `v-for="${value}"`, warn, range)
           } else if (onRE.test(name)) {
-            checkEvent(value, `${name}="${value}"`, errors)
+            checkEvent(value, `${name}="${value}"`, warn, range)
           } else {
-            checkExpression(value, `${name}="${value}"`, errors)
+            checkExpression(value, `${name}="${value}"`, warn, range)
           }
         }
       }
     }
     if (node.children) {
       for (let i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors)
+        checkNode(node.children[i], warn)
       }
     }
   } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors)
+    checkExpression(node.expression, node.text, warn, node)
   }
 }
 
-function checkEvent (exp: string, text: string, errors: Array<string>) {
+function checkEvent (exp: string, text: string, warn: Function, range?: Range) {
   const stipped = exp.replace(stripStringRE, '')
   const keywordMatch: any = stipped.match(unaryOperatorsRE)
   if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
+    warn(
       `avoid using JavaScript unary operator as property name: ` +
-      `"${keywordMatch[0]}" in expression ${text.trim()}`
+      `"${keywordMatch[0]}" in expression ${text.trim()}`,
+      range
     )
   }
-  checkExpression(exp, text, errors)
+  checkExpression(exp, text, warn, range)
 }
 
-function checkFor (node: ASTElement, text: string, errors: Array<string>) {
-  checkExpression(node.for || '', text, errors)
-  checkIdentifier(node.alias, 'v-for alias', text, errors)
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors)
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors)
+function checkFor (node: ASTElement, text: string, warn: Function, range?: Range) {
+  checkExpression(node.for || '', text, warn, range)
+  checkIdentifier(node.alias, 'v-for alias', text, warn, range)
+  checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range)
+  checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range)
 }
 
 function checkIdentifier (
   ident: ?string,
   type: string,
   text: string,
-  errors: Array<string>
+  warn: Function,
+  range?: Range
 ) {
   if (typeof ident === 'string') {
     try {
       new Function(`var ${ident}=_`)
     } catch (e) {
-      errors.push(`invalid ${type} "${ident}" in expression: ${text.trim()}`)
+      warn(`invalid ${type} "${ident}" in expression: ${text.trim()}`, range)
     }
   }
 }
 
-function checkExpression (exp: string, text: string, errors: Array<string>) {
+function checkExpression (exp: string, text: string, warn: Function, range?: Range) {
   try {
     new Function(`return ${exp}`)
   } catch (e) {
     const keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE)
     if (keywordMatch) {
-      errors.push(
+      warn(
         `avoid using JavaScript keyword as property name: ` +
-        `"${keywordMatch[0]}"\n  Raw expression: ${text.trim()}`
+        `"${keywordMatch[0]}"\n  Raw expression: ${text.trim()}`,
+        range
       )
     } else {
-      errors.push(
+      warn(
         `invalid expression: ${e.message} in\n\n` +
         `    ${exp}\n\n` +
-        `  Raw expression: ${text.trim()}\n`
+        `  Raw expression: ${text.trim()}\n`,
+        range
       )
     }
   }
diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 265b05c0390..0411f1a2299 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -3,9 +3,13 @@
 import { emptyObject } from 'shared/util'
 import { parseFilters } from './parser/filter-parser'
 
-export function baseWarn (msg: string) {
+type Range = { start?: number, end?: number };
+
+/* eslint-disable no-unused-vars */
+export function baseWarn (msg: string, range?: Range) {
   console.error(`[Vue compiler]: ${msg}`)
 }
+/* eslint-enable no-unused-vars */
 
 export function pluckModuleFunction<F: Function> (
   modules: ?Array<Object>,
@@ -16,20 +20,20 @@ export function pluckModuleFunction<F: Function> (
     : []
 }
 
-export function addProp (el: ASTElement, name: string, value: string) {
-  (el.props || (el.props = [])).push({ name, value })
+export function addProp (el: ASTElement, name: string, value: string, range?: Range) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name, value }, range))
   el.plain = false
 }
 
-export function addAttr (el: ASTElement, name: string, value: any) {
-  (el.attrs || (el.attrs = [])).push({ name, value })
+export function addAttr (el: ASTElement, name: string, value: any, range?: Range) {
+  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name, value }, range))
   el.plain = false
 }
 
 // add a raw attr (use this in preTransforms)
-export function addRawAttr (el: ASTElement, name: string, value: any) {
+export function addRawAttr (el: ASTElement, name: string, value: any, range?: Range) {
   el.attrsMap[name] = value
-  el.attrsList.push({ name, value })
+  el.attrsList.push(rangeSetItem({ name, value }, range))
 }
 
 export function addDirective (
@@ -38,9 +42,10 @@ export function addDirective (
   rawName: string,
   value: string,
   arg: ?string,
-  modifiers: ?ASTModifiers
+  modifiers: ?ASTModifiers,
+  range?: Range
 ) {
-  (el.directives || (el.directives = [])).push({ name, rawName, value, arg, modifiers })
+  (el.directives || (el.directives = [])).push(rangeSetItem({ name, rawName, value, arg, modifiers }, range))
   el.plain = false
 }
 
@@ -50,7 +55,8 @@ export function addHandler (
   value: string,
   modifiers: ?ASTModifiers,
   important?: boolean,
-  warn?: Function
+  warn?: ?Function,
+  range?: Range
 ) {
   modifiers = modifiers || emptyObject
   // warn prevent and passive modifier
@@ -61,7 +67,8 @@ export function addHandler (
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
+      'Passive handler can\'t prevent default event.',
+      range
     )
   }
 
@@ -100,9 +107,7 @@ export function addHandler (
     events = el.events || (el.events = {})
   }
 
-  const newHandler: any = {
-    value: value.trim()
-  }
+  const newHandler: any = rangeSetItem({ value: value.trim() }, range)
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers
   }
@@ -120,6 +125,15 @@ export function addHandler (
   el.plain = false
 }
 
+export function getRawBindingAttr (
+  el: ASTElement,
+  name: string
+) {
+  return el.rawAttrsMap[':' + name] ||
+    el.rawAttrsMap['v-bind:' + name] ||
+    el.rawAttrsMap[name]
+}
+
 export function getBindingAttr (
   el: ASTElement,
   name: string,
@@ -162,3 +176,18 @@ export function getAndRemoveAttr (
   }
   return val
 }
+
+function rangeSetItem (
+  item: any,
+  range?: { start?: number, end?: number }
+) {
+  if (range) {
+    if (range.start != null) {
+      item.start = range.start
+    }
+    if (range.end != null) {
+      item.end = range.end
+    }
+  }
+  return item
+}
diff --git a/src/compiler/optimizer.js b/src/compiler/optimizer.js
index ce43203500a..5f56e74cdee 100644
--- a/src/compiler/optimizer.js
+++ b/src/compiler/optimizer.js
@@ -30,7 +30,7 @@ export function optimize (root: ?ASTElement, options: CompilerOptions) {
 
 function genStaticKeys (keys: string): Function {
   return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
     (keys ? ',' + keys : '')
   )
 }
diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index b0ef2d649e8..2e6fa6d324e 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -69,7 +69,7 @@ export function parseHTML (html, options) {
 
           if (commentEnd >= 0) {
             if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd))
+              options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3)
             }
             advance(commentEnd + 3)
             continue
@@ -129,16 +129,18 @@ export function parseHTML (html, options) {
           rest = html.slice(textEnd)
         }
         text = html.substring(0, textEnd)
-        advance(textEnd)
       }
 
       if (textEnd < 0) {
         text = html
-        html = ''
+      }
+
+      if (text) {
+        advance(text.length)
       }
 
       if (options.chars && text) {
-        options.chars(text)
+        options.chars(text, index - text.length, index)
       }
     } else {
       let endTagLength = 0
@@ -167,7 +169,7 @@ export function parseHTML (html, options) {
     if (html === last) {
       options.chars && options.chars(html)
       if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
-        options.warn(`Mal-formatted tag at end of template: "${html}"`)
+        options.warn(`Mal-formatted tag at end of template: "${html}"`, { start: index + html.length })
       }
       break
     }
@@ -192,7 +194,9 @@ export function parseHTML (html, options) {
       advance(start[0].length)
       let end, attr
       while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        attr.start = index
         advance(attr[0].length)
+        attr.end = index
         match.attrs.push(attr)
       }
       if (end) {
@@ -231,10 +235,14 @@ export function parseHTML (html, options) {
         name: args[1],
         value: decodeAttr(value, shouldDecodeNewlines)
       }
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        attrs[i].start = args.start + args[0].match(/^\s*/).length
+        attrs[i].end = args.end
+      }
     }
 
     if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs })
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end })
       lastTag = tagName
     }
 
@@ -269,7 +277,8 @@ export function parseHTML (html, options) {
           options.warn
         ) {
           options.warn(
-            `tag <${stack[i].tag}> has no matching end tag.`
+            `tag <${stack[i].tag}> has no matching end tag.`,
+            { start: stack[i].start }
           )
         }
         if (options.end) {
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 9bcd42f9ed8..8900a1d90f9 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -16,6 +16,7 @@ import {
   addDirective,
   getBindingAttr,
   getAndRemoveAttr,
+  getRawBindingAttr,
   pluckModuleFunction
 } from '../helpers'
 
@@ -41,11 +42,9 @@ let platformIsPreTag
 let platformMustUseProp
 let platformGetTagNamespace
 
-type Attr = { name: string; value: string };
-
 export function createASTElement (
   tag: string,
-  attrs: Array<Attr>,
+  attrs: Array<ASTAttr>,
   parent: ASTElement | void
 ): ASTElement {
   return {
@@ -53,6 +52,7 @@ export function createASTElement (
     tag,
     attrsList: attrs,
     attrsMap: makeAttrsMap(attrs),
+    rawAttrsMap: {},
     parent,
     children: []
   }
@@ -85,10 +85,10 @@ export function parse (
   let inPre = false
   let warned = false
 
-  function warnOnce (msg) {
+  function warnOnce (msg, range) {
     if (!warned) {
       warned = true
-      warn(msg)
+      warn(msg, range)
     }
   }
 
@@ -114,7 +114,8 @@ export function parse (
     shouldDecodeNewlines: options.shouldDecodeNewlines,
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
-    start (tag, attrs, unary) {
+    outputSourceRange: options.outputSourceRange,
+    start (tag, attrs, unary, start) {
       // check namespace.
       // inherit parent ns if there is one
       const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag)
@@ -130,12 +131,21 @@ export function parse (
         element.ns = ns
       }
 
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        element.start = start
+        element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
+          cumulated[attr.name] = attr
+          return cumulated
+        }, {})
+      }
+
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true
         process.env.NODE_ENV !== 'production' && warn(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          `<${tag}>` + ', as they will not be parsed.'
+          `<${tag}>` + ', as they will not be parsed.',
+          { start: element.start }
         )
       }
 
@@ -169,13 +179,15 @@ export function parse (
           if (el.tag === 'slot' || el.tag === 'template') {
             warnOnce(
               `Cannot use <${el.tag}> as component root element because it may ` +
-              'contain multiple nodes.'
+              'contain multiple nodes.',
+              { start: el.start }
             )
           }
           if (el.attrsMap.hasOwnProperty('v-for')) {
             warnOnce(
               'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
+              'it renders multiple elements.',
+              el.rawAttrsMap['v-for']
             )
           }
         }
@@ -197,7 +209,8 @@ export function parse (
           warnOnce(
             `Component template should contain exactly one root element. ` +
             `If you are using v-if on multiple elements, ` +
-            `use v-else-if to chain them instead.`
+            `use v-else-if to chain them instead.`,
+            { start: element.start }
           )
         }
       }
@@ -221,7 +234,7 @@ export function parse (
       }
     },
 
-    end () {
+    end (tag, start, end) {
       // remove trailing whitespace
       const element = stack[stack.length - 1]
       const lastNode = element.children[element.children.length - 1]
@@ -231,19 +244,24 @@ export function parse (
       // pop stack
       stack.length -= 1
       currentParent = stack[stack.length - 1]
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        element.end = end
+      }
       closeElement(element)
     },
 
-    chars (text: string) {
+    chars (text: string, start: number, end: number) {
       if (!currentParent) {
         if (process.env.NODE_ENV !== 'production') {
           if (text === template) {
             warnOnce(
-              'Component template requires a root element, rather than just text.'
+              'Component template requires a root element, rather than just text.',
+              { start }
             )
           } else if ((text = text.trim())) {
             warnOnce(
-              `text "${text}" outside root element will be ignored.`
+              `text "${text}" outside root element will be ignored.`,
+              { start }
             )
           }
         }
@@ -264,27 +282,40 @@ export function parse (
         : preserveWhitespace && children.length ? ' ' : ''
       if (text) {
         let res
+        let child: ?ASTNode
         if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
+          child = {
             type: 2,
             expression: res.expression,
             tokens: res.tokens,
             text
-          })
+          }
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
+          child = {
             type: 3,
             text
-          })
+          }
+        }
+        if (child) {
+          if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+            child.start = start
+            child.end = end
+          }
+          children.push(child)
         }
       }
     },
-    comment (text: string) {
-      currentParent.children.push({
+    comment (text: string, start, end) {
+      const child: ASTText = {
         type: 3,
         text,
         isComment: true
-      })
+      }
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        child.start = start
+        child.end = end
+      }
+      currentParent.children.push(child)
     }
   })
   return root
@@ -297,13 +328,18 @@ function processPre (el) {
 }
 
 function processRawAttrs (el) {
-  const l = el.attrsList.length
-  if (l) {
-    const attrs = el.attrs = new Array(l)
-    for (let i = 0; i < l; i++) {
+  const list = el.attrsList
+  const len = list.length
+  if (len) {
+    const attrs: Array<ASTAttr> = el.attrs = new Array(len)
+    for (let i = 0; i < len; i++) {
       attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
+        name: list[i].name,
+        value: JSON.stringify(list[i].value)
+      }
+      if (list[i].start != null) {
+        attrs[i].start = list[i].start
+        attrs[i].end = list[i].end
       }
     }
   } else if (!el.pre) {
@@ -333,7 +369,10 @@ function processKey (el) {
   if (exp) {
     if (process.env.NODE_ENV !== 'production') {
       if (el.tag === 'template') {
-        warn(`<template> cannot be keyed. Place the key on real elements instead.`)
+        warn(
+          `<template> cannot be keyed. Place the key on real elements instead.`,
+          getRawBindingAttr(el, 'key')
+        )
       }
       if (el.for) {
         const iterator = el.iterator2 || el.iterator1
@@ -342,6 +381,7 @@ function processKey (el) {
           warn(
             `Do not use v-for index as key on <transition-group> children, ` +
             `this is the same as not using keys.`,
+            getRawBindingAttr(el, 'key'),
             true /* tip */
           )
         }
@@ -367,7 +407,8 @@ export function processFor (el: ASTElement) {
       extend(el, res)
     } else if (process.env.NODE_ENV !== 'production') {
       warn(
-        `Invalid v-for expression: ${exp}`
+        `Invalid v-for expression: ${exp}`,
+        el.rawAttrsMap['v-for']
       )
     }
   }
@@ -428,7 +469,8 @@ function processIfConditions (el, parent) {
   } else if (process.env.NODE_ENV !== 'production') {
     warn(
       `v-${el.elseif ? ('else-if="' + el.elseif + '"') : 'else'} ` +
-      `used on element <${el.tag}> without corresponding v-if.`
+      `used on element <${el.tag}> without corresponding v-if.`,
+      el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
     )
   }
 }
@@ -442,7 +484,8 @@ function findPrevElement (children: Array<any>): ASTElement | void {
       if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
         warn(
           `text "${children[i].text.trim()}" between v-if and v-else(-if) ` +
-          `will be ignored.`
+          `will be ignored.`,
+          children[i]
         )
       }
       children.pop()
@@ -471,7 +514,8 @@ function processSlot (el) {
       warn(
         `\`key\` does not work on <slot> because slots are abstract outlets ` +
         `and can possibly expand into multiple elements. ` +
-        `Use the key on a wrapping element instead.`
+        `Use the key on a wrapping element instead.`,
+        getRawBindingAttr(el, 'key')
       )
     }
   } else {
@@ -485,6 +529,7 @@ function processSlot (el) {
           `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
           `can also be used on plain elements in addition to <template> to ` +
           `denote scoped slots.`,
+          el.rawAttrsMap['scope'],
           true
         )
       }
@@ -496,6 +541,7 @@ function processSlot (el) {
           `Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
           `(v-for takes higher priority). Use a wrapper <template> for the ` +
           `scoped slot to make it clearer.`,
+          el.rawAttrsMap['slot-scope'],
           true
         )
       }
@@ -507,7 +553,7 @@ function processSlot (el) {
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
       if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget)
+        addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'))
       }
     }
   }
@@ -563,13 +609,21 @@ function processAttrs (el) {
             addHandler(
               el,
               `update:${camelize(name)}`,
-              syncGen
+              syncGen,
+              null,
+              false,
+              warn,
+              list[i]
             )
             if (hyphenate(name) !== camelize(name)) {
               addHandler(
                 el,
                 `update:${hyphenate(name)}`,
-                syncGen
+                syncGen,
+                null,
+                false,
+                warn,
+                list[i]
               )
             }
           }
@@ -577,13 +631,13 @@ function processAttrs (el) {
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value)
+          addProp(el, name, value, list[i])
         } else {
-          addAttr(el, name, value)
+          addAttr(el, name, value, list[i])
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '')
-        addHandler(el, name, value, modifiers, false, warn)
+        addHandler(el, name, value, modifiers, false, warn, list[i])
       } else { // normal directives
         name = name.replace(dirRE, '')
         // parse arg
@@ -592,7 +646,7 @@ function processAttrs (el) {
         if (arg) {
           name = name.slice(0, -(arg.length + 1))
         }
-        addDirective(el, name, rawName, value, arg, modifiers)
+        addDirective(el, name, rawName, value, arg, modifiers, list[i])
         if (process.env.NODE_ENV !== 'production' && name === 'model') {
           checkForAliasModel(el, value)
         }
@@ -606,17 +660,18 @@ function processAttrs (el) {
             `${name}="${value}": ` +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
+            'instead of <div id="{{ val }}">, use <div :id="val">.',
+            list[i]
           )
         }
       }
-      addAttr(el, name, JSON.stringify(value))
+      addAttr(el, name, JSON.stringify(value), list[i])
       // #6887 firefox doesn't update muted state if set via attribute
       // even immediately after element creation
       if (!el.component &&
           name === 'muted' &&
           platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true')
+        addProp(el, name, 'true', list[i])
       }
     }
   }
@@ -649,7 +704,7 @@ function makeAttrsMap (attrs: Array<Object>): Object {
       process.env.NODE_ENV !== 'production' &&
       map[attrs[i].name] && !isIE && !isEdge
     ) {
-      warn('duplicate attribute: ' + attrs[i].name)
+      warn('duplicate attribute: ' + attrs[i].name, attrs[i])
     }
     map[attrs[i].name] = attrs[i].value
   }
@@ -696,7 +751,8 @@ function checkForAliasModel (el, value) {
         `You are binding v-model directly to a v-for iteration alias. ` +
         `This will not be able to modify the v-for source array because ` +
         `writing to the alias is like modifying a function local variable. ` +
-        `Consider using an array of objects and use v-model on an object property instead.`
+        `Consider using an array of objects and use v-model on an object property instead.`,
+        el.rawAttrsMap['v-model']
       )
     }
     _el = _el.parent
diff --git a/src/platforms/web/compiler/directives/html.js b/src/platforms/web/compiler/directives/html.js
index 58569d8e47e..a4b7062eb6e 100644
--- a/src/platforms/web/compiler/directives/html.js
+++ b/src/platforms/web/compiler/directives/html.js
@@ -4,6 +4,6 @@ import { addProp } from 'compiler/helpers'
 
 export default function html (el: ASTElement, dir: ASTDirective) {
   if (dir.value) {
-    addProp(el, 'innerHTML', `_s(${dir.value})`)
+    addProp(el, 'innerHTML', `_s(${dir.value})`, dir)
   }
 }
diff --git a/src/platforms/web/compiler/directives/model.js b/src/platforms/web/compiler/directives/model.js
index 126f0c7d6c7..a42096109a5 100644
--- a/src/platforms/web/compiler/directives/model.js
+++ b/src/platforms/web/compiler/directives/model.js
@@ -28,7 +28,8 @@ export default function model (
     if (tag === 'input' && type === 'file') {
       warn(
         `<${el.tag} v-model="${value}" type="file">:\n` +
-        `File inputs are read only. Use a v-on:change listener instead.`
+        `File inputs are read only. Use a v-on:change listener instead.`,
+        el.rawAttrsMap['v-model']
       )
     }
   }
@@ -54,7 +55,8 @@ export default function model (
       `<${el.tag} v-model="${value}">: ` +
       `v-model is not supported on this element type. ` +
       'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
+      'wrap a library dedicated for that purpose inside a custom component.',
+      el.rawAttrsMap['v-model']
     )
   }
 
@@ -138,7 +140,8 @@ function genDefaultModel (
       const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value'
       warn(
         `${binding}="${value}" conflicts with v-model on the same element ` +
-        'because the latter already expands to a value binding internally'
+        'because the latter already expands to a value binding internally',
+        el.rawAttrsMap[binding]
       )
     }
   }
diff --git a/src/platforms/web/compiler/directives/text.js b/src/platforms/web/compiler/directives/text.js
index 1af914f8ea0..c434d3e3686 100644
--- a/src/platforms/web/compiler/directives/text.js
+++ b/src/platforms/web/compiler/directives/text.js
@@ -4,6 +4,6 @@ import { addProp } from 'compiler/helpers'
 
 export default function text (el: ASTElement, dir: ASTDirective) {
   if (dir.value) {
-    addProp(el, 'textContent', `_s(${dir.value})`)
+    addProp(el, 'textContent', `_s(${dir.value})`, dir)
   }
 }
diff --git a/src/platforms/web/compiler/modules/class.js b/src/platforms/web/compiler/modules/class.js
index ffdca250991..dcb5a229c2b 100644
--- a/src/platforms/web/compiler/modules/class.js
+++ b/src/platforms/web/compiler/modules/class.js
@@ -17,7 +17,8 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
         `class="${staticClass}": ` +
         'Interpolation inside attributes has been removed. ' +
         'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
+        'instead of <div class="{{ val }}">, use <div :class="val">.',
+        el.rawAttrsMap['class']
       )
     }
   }
diff --git a/src/platforms/web/compiler/modules/style.js b/src/platforms/web/compiler/modules/style.js
index 2722b92b44d..8c6bb98857c 100644
--- a/src/platforms/web/compiler/modules/style.js
+++ b/src/platforms/web/compiler/modules/style.js
@@ -20,7 +20,8 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
           `style="${staticStyle}": ` +
           'Interpolation inside attributes has been removed. ' +
           'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
+          'instead of <div style="{{ val }}">, use <div :style="val">.',
+          el.rawAttrsMap['style']
         )
       }
     }
diff --git a/src/platforms/weex/compiler/modules/class.js b/src/platforms/weex/compiler/modules/class.js
index 371a08ea2f5..05a0182f594 100644
--- a/src/platforms/weex/compiler/modules/class.js
+++ b/src/platforms/weex/compiler/modules/class.js
@@ -20,7 +20,8 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
     warn(
       `class="${staticClass}": ` +
       'Interpolation inside attributes has been deprecated. ' +
-      'Use v-bind or the colon shorthand instead.'
+      'Use v-bind or the colon shorthand instead.',
+      el.rawAttrsMap['class']
     )
   }
   if (!dynamic && classResult) {
diff --git a/src/platforms/weex/compiler/modules/props.js b/src/platforms/weex/compiler/modules/props.js
index f287c0aea9b..f7e21fe3b41 100644
--- a/src/platforms/weex/compiler/modules/props.js
+++ b/src/platforms/weex/compiler/modules/props.js
@@ -22,6 +22,11 @@ function transformNode (el: ASTElement) {
           el.attrsMap[realName] = el.attrsMap[attr.name]
           delete el.attrsMap[attr.name]
         }
+        if (el.rawAttrsMap && el.rawAttrsMap[attr.name]) {
+          el.rawAttrsMap[realName] = el.rawAttrsMap[attr.name]
+          // $flow-disable-line
+          delete el.rawAttrsMap[attr.name]
+        }
         attr.name = realName
       }
     })
diff --git a/src/platforms/weex/compiler/modules/style.js b/src/platforms/weex/compiler/modules/style.js
index 7bf5027fa39..9b0cd446d15 100644
--- a/src/platforms/weex/compiler/modules/style.js
+++ b/src/platforms/weex/compiler/modules/style.js
@@ -23,7 +23,8 @@ function transformNode (el: ASTElement, options: CompilerOptions) {
     warn(
       `style="${String(staticStyle)}": ` +
       'Interpolation inside attributes has been deprecated. ' +
-      'Use v-bind or the colon shorthand instead.'
+      'Use v-bind or the colon shorthand instead.',
+      el.rawAttrsMap['style']
     )
   }
   if (!dynamic && styleResult) {
diff --git a/src/server/optimizing-compiler/modules.js b/src/server/optimizing-compiler/modules.js
index 821f0e2b064..a1dcfe5e293 100644
--- a/src/server/optimizing-compiler/modules.js
+++ b/src/server/optimizing-compiler/modules.js
@@ -19,8 +19,6 @@ import {
 import type { StringSegment } from './codegen'
 import type { CodegenState } from 'compiler/codegen/index'
 
-type Attr = { name: string; value: string };
-
 const plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/
 
 // let the model AST transform translate v-model into appropriate
@@ -42,14 +40,14 @@ export function applyModelTransform (el: ASTElement, state: CodegenState) {
 }
 
 export function genAttrSegments (
-  attrs: Array<Attr>
+  attrs: Array<ASTAttr>
 ): Array<StringSegment> {
   return attrs.map(({ name, value }) => genAttrSegment(name, value))
 }
 
 export function genDOMPropSegments (
-  props: Array<Attr>,
-  attrs: ?Array<Attr>
+  props: Array<ASTAttr>,
+  attrs: ?Array<ASTAttr>
 ): Array<StringSegment> {
   const segments = []
   props.forEach(({ name, value }) => {
diff --git a/src/server/optimizing-compiler/optimizer.js b/src/server/optimizing-compiler/optimizer.js
index d24acc5526a..d89cbd0a451 100644
--- a/src/server/optimizing-compiler/optimizer.js
+++ b/src/server/optimizing-compiler/optimizer.js
@@ -84,6 +84,7 @@ function optimizeSiblings (el) {
         tag: 'template',
         attrsList: [],
         attrsMap: {},
+        rawAttrsMap: {},
         children: currentOptimizableGroup,
         ssrOptimizability: optimizability.FULL
       })
diff --git a/src/sfc/parser.js b/src/sfc/parser.js
index 1e6f32acf20..59c5fc3a2c0 100644
--- a/src/sfc/parser.js
+++ b/src/sfc/parser.js
@@ -8,11 +8,6 @@ const splitRE = /\r?\n/g
 const replaceRE = /./g
 const isSpecialTag = makeMap('script,style,template', true)
 
-type Attribute = {
-  name: string,
-  value: string
-};
-
 /**
  * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
  */
@@ -24,14 +19,32 @@ export function parseComponent (
     template: null,
     script: null,
     styles: [],
-    customBlocks: []
+    customBlocks: [],
+    errors: []
   }
   let depth = 0
   let currentBlock: ?SFCBlock = null
 
+  let warn = msg => {
+    sfc.errors.push(msg)
+  }
+
+  if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+    warn = (msg, range) => {
+      const data: WarningMessage = { msg }
+      if (range.start != null) {
+        data.start = range.start
+      }
+      if (range.end != null) {
+        data.end = range.end
+      }
+      sfc.errors.push(data)
+    }
+  }
+
   function start (
     tag: string,
-    attrs: Array<Attribute>,
+    attrs: Array<ASTAttr>,
     unary: boolean,
     start: number,
     end: number
@@ -62,7 +75,7 @@ export function parseComponent (
     }
   }
 
-  function checkAttrs (block: SFCBlock, attrs: Array<Attribute>) {
+  function checkAttrs (block: SFCBlock, attrs: Array<ASTAttr>) {
     for (let i = 0; i < attrs.length; i++) {
       const attr = attrs[i]
       if (attr.name === 'lang') {
@@ -111,8 +124,10 @@ export function parseComponent (
   }
 
   parseHTML(content, {
+    warn,
     start,
-    end
+    end,
+    outputSourceRange: options.outputSourceRange
   })
 
   return sfc
diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index ad9707a5578..4b17545bd5b 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -127,4 +127,25 @@ describe('compile options', () => {
     expect(compiled.errors[0]).toContain('Raw expression: v-if="a----"')
     expect(compiled.errors[1]).toContain('Raw expression: {{ b++++ }}')
   })
+
+  it('should collect errors with source range', () => {
+    let compiled = compile('hello', { outputSourceRange: true })
+    expect(compiled.errors.length).toBe(1)
+    expect(compiled.errors[0].start).toBe(0)
+    expect(compiled.errors[0].end).toBeUndefined()
+
+    compiled = compile('<div v-if="a----">{{ b++++ }}</div>', { outputSourceRange: true })
+    expect(compiled.errors.length).toBe(2)
+    expect(compiled.errors[0].start).toBe(5)
+    expect(compiled.errors[0].end).toBe(17)
+    expect(compiled.errors[1].start).toBe(18)
+    expect(compiled.errors[1].end).toBe(29)
+  })
+
+  it('should collect source range for binding keys', () => {
+    const compiled = compile('<div><slot v-bind:key="key" /></div>', { outputSourceRange: true })
+    expect(compiled.errors.length).toBe(1)
+    expect(compiled.errors[0].start).toBe(11)
+    expect(compiled.errors[0].end).toBe(27)
+  })
 })
diff --git a/test/unit/modules/sfc/sfc-parser.spec.js b/test/unit/modules/sfc/sfc-parser.spec.js
index ecc97fc5c33..1072b7bb3cf 100644
--- a/test/unit/modules/sfc/sfc-parser.spec.js
+++ b/test/unit/modules/sfc/sfc-parser.spec.js
@@ -202,4 +202,10 @@ describe('Single File Component parser', () => {
     const res = parseComponent(`<template>hi</`)
     expect(res.template.content).toBe('hi')
   })
+
+  it('should collect errors with source range', () => {
+    const res = parseComponent(`<template>hi</`, { outputSourceRange: true })
+    expect(res.errors.length).toBe(1)
+    expect(res.errors[0].start).toBe(0)
+  })
 })

From 3883f1f69c3dc12abd9c5f321f98f340233c1087 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 21 Dec 2018 22:23:11 -0500
Subject: [PATCH 669/911] chore: update deps

---
 package.json |   10 +-
 yarn.lock    | 1893 +++++++++++++++++++++++++-------------------------
 2 files changed, 948 insertions(+), 955 deletions(-)

diff --git a/package.json b/package.json
index c837ef26d5b..178785d3d92 100644
--- a/package.json
+++ b/package.json
@@ -74,8 +74,8 @@
     "@babel/plugin-transform-flow-strip-types": "^7.0.0",
     "@babel/preset-env": "^7.0.0",
     "@babel/register": "^7.0.0",
-    "@types/node": "^8.0.33",
-    "@types/webpack": "^3.0.13",
+    "@types/node": "^10.12.18",
+    "@types/webpack": "^4.4.22",
     "acorn": "^5.2.1",
     "babel-eslint": "^8.0.3",
     "babel-helper-vue-jsx-merge-props": "^2.0.3",
@@ -85,7 +85,7 @@
     "babel-preset-flow-vue": "^1.0.0",
     "buble": "^0.19.3",
     "chalk": "^2.3.0",
-    "chromedriver": "^2.30.1",
+    "chromedriver": "^2.45.0",
     "codecov": "^3.0.0",
     "commitizen": "^2.9.6",
     "conventional-changelog": "^1.1.3",
@@ -124,13 +124,13 @@
     "nightwatch-helpers": "^1.2.0",
     "phantomjs-prebuilt": "^2.1.14",
     "resolve": "^1.3.3",
-    "rollup": "^0.66.6",
+    "rollup": "^0.68.1",
     "rollup-plugin-alias": "^1.3.1",
     "rollup-plugin-babel": "^4.0.1",
     "rollup-plugin-buble": "^0.19.2",
     "rollup-plugin-commonjs": "^9.2.0",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
-    "rollup-plugin-node-resolve": "^3.0.0",
+    "rollup-plugin-node-resolve": "^4.0.0",
     "rollup-plugin-replace": "^2.0.0",
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
diff --git a/yarn.lock b/yarn.lock
index 0da86a70227..4bf225d8ccd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -17,20 +17,20 @@
     "@babel/highlight" "^7.0.0"
 
 "@babel/core@^7.0.0":
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.1.2.tgz#f8d2a9ceb6832887329a7b60f9d035791400ba4e"
-  integrity sha512-IFeSSnjXdhDaoysIlev//UzHZbdEmm7D0EIH2qtse9xK7mXEZQpYjs2P00XlP1qYsYvid79p+Zgg6tz1mp6iVw==
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.2.2.tgz#07adba6dde27bb5ad8d8672f15fde3e08184a687"
+  integrity sha512-59vB0RWt09cAct5EIe58+NzGP4TFSD3Bz//2/ELy3ZeTeKF6VTD1AXlH8BGGbCX0PuobZBsIzO7IAI9PH67eKw==
   dependencies:
     "@babel/code-frame" "^7.0.0"
-    "@babel/generator" "^7.1.2"
-    "@babel/helpers" "^7.1.2"
-    "@babel/parser" "^7.1.2"
-    "@babel/template" "^7.1.2"
-    "@babel/traverse" "^7.1.0"
-    "@babel/types" "^7.1.2"
+    "@babel/generator" "^7.2.2"
+    "@babel/helpers" "^7.2.0"
+    "@babel/parser" "^7.2.2"
+    "@babel/template" "^7.2.2"
+    "@babel/traverse" "^7.2.2"
+    "@babel/types" "^7.2.2"
     convert-source-map "^1.1.0"
-    debug "^3.1.0"
-    json5 "^0.5.0"
+    debug "^4.1.0"
+    json5 "^2.1.0"
     lodash "^4.17.10"
     resolve "^1.3.2"
     semver "^5.4.1"
@@ -47,12 +47,12 @@
     source-map "^0.5.0"
     trim-right "^1.0.1"
 
-"@babel/generator@^7.0.0", "@babel/generator@^7.1.2", "@babel/generator@^7.1.3":
-  version "7.1.3"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.1.3.tgz#2103ec9c42d9bdad9190a6ad5ff2d456fd7b8673"
-  integrity sha512-ZoCZGcfIJFJuZBqxcY9OjC1KW2lWK64qrX1o4UYL3yshVhwKFYgzpWZ0vvtGMNJdTlvkw0W+HR1VnYN8q3QPFQ==
+"@babel/generator@^7.0.0", "@babel/generator@^7.2.2":
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.2.2.tgz#18c816c70962640eab42fe8cae5f3947a5c65ccc"
+  integrity sha512-I4o675J/iS8k+P38dvJ3IBGqObLXyQLTxtrR4u9cSUJOURvafeEWb/pFMOTwtNrmq73mJzyF6ueTbO1BtN0Zeg==
   dependencies:
-    "@babel/types" "^7.1.3"
+    "@babel/types" "^7.2.2"
     jsesc "^2.5.1"
     lodash "^4.17.10"
     source-map "^0.5.0"
@@ -82,6 +82,17 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.0.0"
 
+"@babel/helper-create-class-features-plugin@^7.2.3":
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.2.3.tgz#f6e719abb90cb7f4a69591e35fd5eb89047c4a7c"
+  integrity sha512-xO/3Gn+2C7/eOUeb0VRnSP1+yvWHNxlpAot1eMhtoKDCN7POsyQP5excuT5UsV5daHxMWBeIIOeI5cmB8vMRgQ==
+  dependencies:
+    "@babel/helper-function-name" "^7.1.0"
+    "@babel/helper-member-expression-to-functions" "^7.0.0"
+    "@babel/helper-optimise-call-expression" "^7.0.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+    "@babel/helper-replace-supers" "^7.2.3"
+
 "@babel/helper-define-map@^7.1.0":
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-define-map/-/helper-define-map-7.1.0.tgz#3b74caec329b3c80c116290887c0dd9ae468c20c"
@@ -153,15 +164,15 @@
     "@babel/types" "^7.0.0"
 
 "@babel/helper-module-transforms@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.1.0.tgz#470d4f9676d9fad50b324cdcce5fbabbc3da5787"
-  integrity sha512-0JZRd2yhawo79Rcm4w0LwSMILFmFXjugG3yqf+P/UsKsRS1mJCmMwwlHDlMg7Avr9LrvSpp4ZSULO9r8jpCzcw==
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/helper-module-transforms/-/helper-module-transforms-7.2.2.tgz#ab2f8e8d231409f8370c883d20c335190284b963"
+  integrity sha512-YRD7I6Wsv+IHuTPkAmAS4HhY0dkPobgLftHp0cRGZSdrRvmZY8rFvae/GVu3bD00qscuvK3WPHB3YdNpBXUqrA==
   dependencies:
     "@babel/helper-module-imports" "^7.0.0"
     "@babel/helper-simple-access" "^7.1.0"
     "@babel/helper-split-export-declaration" "^7.0.0"
-    "@babel/template" "^7.1.0"
-    "@babel/types" "^7.0.0"
+    "@babel/template" "^7.2.2"
+    "@babel/types" "^7.2.2"
     lodash "^4.17.10"
 
 "@babel/helper-optimise-call-expression@^7.0.0":
@@ -194,14 +205,14 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.0.0"
 
-"@babel/helper-replace-supers@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.1.0.tgz#5fc31de522ec0ef0899dc9b3e7cf6a5dd655f362"
-  integrity sha512-BvcDWYZRWVuDeXTYZWxekQNO5D4kO55aArwZOTFXw6rlLQA8ZaDicJR1sO47h+HrnCiDFiww0fSPV0d713KBGQ==
+"@babel/helper-replace-supers@^7.1.0", "@babel/helper-replace-supers@^7.2.3":
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.2.3.tgz#19970020cf22677d62b3a689561dbd9644d8c5e5"
+  integrity sha512-GyieIznGUfPXPWu0yLS6U55Mz67AZD9cUk0BfirOWlPrXlBcan9Gz+vHGz+cPfuoweZSnPzPIm67VtQM0OWZbA==
   dependencies:
     "@babel/helper-member-expression-to-functions" "^7.0.0"
     "@babel/helper-optimise-call-expression" "^7.0.0"
-    "@babel/traverse" "^7.1.0"
+    "@babel/traverse" "^7.2.3"
     "@babel/types" "^7.0.0"
 
 "@babel/helper-simple-access@^7.1.0":
@@ -227,23 +238,23 @@
     "@babel/types" "^7.0.0"
 
 "@babel/helper-wrap-function@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/helper-wrap-function/-/helper-wrap-function-7.1.0.tgz#8cf54e9190706067f016af8f75cb3df829cc8c66"
-  integrity sha512-R6HU3dete+rwsdAfrOzTlE9Mcpk4RjU3aX3gi9grtmugQY0u79X7eogUvfXA5sI81Mfq1cn6AgxihfN33STjJA==
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-wrap-function/-/helper-wrap-function-7.2.0.tgz#c4e0012445769e2815b55296ead43a958549f6fa"
+  integrity sha512-o9fP1BZLLSrYlxYEYyl2aS+Flun5gtjTIG8iln+XuEzQTs0PLagAGSXUcqruJwD5fM48jzIEggCKpIfWTcR7pQ==
   dependencies:
     "@babel/helper-function-name" "^7.1.0"
     "@babel/template" "^7.1.0"
     "@babel/traverse" "^7.1.0"
-    "@babel/types" "^7.0.0"
+    "@babel/types" "^7.2.0"
 
-"@babel/helpers@^7.1.2":
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.1.2.tgz#ab752e8c35ef7d39987df4e8586c63b8846234b5"
-  integrity sha512-Myc3pUE8eswD73aWcartxB16K6CGmHDv9KxOmD2CeOs/FaEAQodr3VYGmlvOmog60vNQ2w8QbatuahepZwrHiA==
+"@babel/helpers@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.2.0.tgz#8335f3140f3144270dc63c4732a4f8b0a50b7a21"
+  integrity sha512-Fr07N+ea0dMcMN8nFpuK6dUIT7/ivt9yKQdEEnjVS83tG2pHwPi03gYmk/tyuwONnZ+sY+GFFPlWGgCtW1hF9A==
   dependencies:
     "@babel/template" "^7.1.2"
-    "@babel/traverse" "^7.1.0"
-    "@babel/types" "^7.1.2"
+    "@babel/traverse" "^7.1.5"
+    "@babel/types" "^7.2.0"
 
 "@babel/highlight@7.0.0-beta.44":
   version "7.0.0-beta.44"
@@ -263,156 +274,145 @@
     esutils "^2.0.2"
     js-tokens "^4.0.0"
 
-"@babel/parser@^7.0.0", "@babel/parser@^7.1.2", "@babel/parser@^7.1.3":
-  version "7.1.3"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.1.3.tgz#2c92469bac2b7fbff810b67fca07bd138b48af77"
-  integrity sha512-gqmspPZOMW3MIRb9HlrnbZHXI1/KHTOroBwN1NcLL6pWxzqzEKGvRTq0W/PxS45OtQGbaFikSQpkS5zbnsQm2w==
+"@babel/parser@^7.0.0", "@babel/parser@^7.2.2", "@babel/parser@^7.2.3":
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.2.3.tgz#32f5df65744b70888d17872ec106b02434ba1489"
+  integrity sha512-0LyEcVlfCoFmci8mXx8A5oIkpkOgyo8dRHtxBnK9RRBwxO2+JZPNsqtVEZQ7mJFPxnXF9lfmU24mHOPI0qnlkA==
 
-"@babel/plugin-proposal-async-generator-functions@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.1.0.tgz#41c1a702e10081456e23a7b74d891922dd1bb6ce"
-  integrity sha512-Fq803F3Jcxo20MXUSDdmZZXrPe6BWyGcWBPPNB/M7WaUYESKDeKMOGIxEzQOjGSmW/NWb6UaPZrtTB2ekhB/ew==
+"@babel/plugin-proposal-async-generator-functions@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-async-generator-functions/-/plugin-proposal-async-generator-functions-7.2.0.tgz#b289b306669dce4ad20b0252889a15768c9d417e"
+  integrity sha512-+Dfo/SCQqrwx48ptLVGLdE39YtWRuKc/Y9I5Fy0P1DDBB9lsAHpjcEJQt+4IifuSOSTLBKJObJqMvaO1pIE8LQ==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-remap-async-to-generator" "^7.1.0"
-    "@babel/plugin-syntax-async-generators" "^7.0.0"
+    "@babel/plugin-syntax-async-generators" "^7.2.0"
 
 "@babel/plugin-proposal-class-properties@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.1.0.tgz#9af01856b1241db60ec8838d84691aa0bd1e8df4"
-  integrity sha512-/PCJWN+CKt5v1xcGn4vnuu13QDoV+P7NcICP44BoonAJoPSGwVkgrXihFIQGiEjjPlUDBIw1cM7wYFLARS2/hw==
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.2.3.tgz#c9e1294363b346cff333007a92080f3203698461"
+  integrity sha512-FVuQngLoN2iDrpW7LmhPZ2sO4DJxf35FOcwidwB9Ru9tMvI5URthnkVHuG14IStV+TzkMTyLMoOUlSTtrdVwqw==
   dependencies:
-    "@babel/helper-function-name" "^7.1.0"
-    "@babel/helper-member-expression-to-functions" "^7.0.0"
-    "@babel/helper-optimise-call-expression" "^7.0.0"
+    "@babel/helper-create-class-features-plugin" "^7.2.3"
     "@babel/helper-plugin-utils" "^7.0.0"
-    "@babel/helper-replace-supers" "^7.1.0"
-    "@babel/plugin-syntax-class-properties" "^7.0.0"
 
-"@babel/plugin-proposal-json-strings@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-json-strings/-/plugin-proposal-json-strings-7.0.0.tgz#3b4d7b5cf51e1f2e70f52351d28d44fc2970d01e"
-  integrity sha512-kfVdUkIAGJIVmHmtS/40i/fg/AGnw/rsZBCaapY5yjeO5RA9m165Xbw9KMOu2nqXP5dTFjEjHdfNdoVcHv133Q==
+"@babel/plugin-proposal-json-strings@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-json-strings/-/plugin-proposal-json-strings-7.2.0.tgz#568ecc446c6148ae6b267f02551130891e29f317"
+  integrity sha512-MAFV1CA/YVmYwZG0fBQyXhmj0BHCB5egZHCKWIFVv/XCxAeVGIHfos3SwDck4LvCllENIAg7xMKOG5kH0dzyUg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
-    "@babel/plugin-syntax-json-strings" "^7.0.0"
+    "@babel/plugin-syntax-json-strings" "^7.2.0"
 
-"@babel/plugin-proposal-object-rest-spread@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.0.0.tgz#9a17b547f64d0676b6c9cecd4edf74a82ab85e7e"
-  integrity sha512-14fhfoPcNu7itSen7Py1iGN0gEm87hX/B+8nZPqkdmANyyYWYMY2pjA3r8WXbWVKMzfnSNS0xY8GVS0IjXi/iw==
+"@babel/plugin-proposal-object-rest-spread@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-object-rest-spread/-/plugin-proposal-object-rest-spread-7.2.0.tgz#88f5fec3e7ad019014c97f7ee3c992f0adbf7fb8"
+  integrity sha512-1L5mWLSvR76XYUQJXkd/EEQgjq8HHRP6lQuZTTg0VA4tTGPpGemmCdAfQIz1rzEuWAm+ecP8PyyEm30jC1eQCg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
-    "@babel/plugin-syntax-object-rest-spread" "^7.0.0"
+    "@babel/plugin-syntax-object-rest-spread" "^7.2.0"
 
-"@babel/plugin-proposal-optional-catch-binding@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-catch-binding/-/plugin-proposal-optional-catch-binding-7.0.0.tgz#b610d928fe551ff7117d42c8bb410eec312a6425"
-  integrity sha512-JPqAvLG1s13B/AuoBjdBYvn38RqW6n1TzrQO839/sIpqLpbnXKacsAgpZHzLD83Sm8SDXMkkrAvEnJ25+0yIpw==
+"@babel/plugin-proposal-optional-catch-binding@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-optional-catch-binding/-/plugin-proposal-optional-catch-binding-7.2.0.tgz#135d81edb68a081e55e56ec48541ece8065c38f5"
+  integrity sha512-mgYj3jCcxug6KUcX4OBoOJz3CMrwRfQELPQ5560F70YQUBZB7uac9fqaWamKR1iWUzGiK2t0ygzjTScZnVz75g==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
-    "@babel/plugin-syntax-optional-catch-binding" "^7.0.0"
+    "@babel/plugin-syntax-optional-catch-binding" "^7.2.0"
 
-"@babel/plugin-proposal-unicode-property-regex@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-unicode-property-regex/-/plugin-proposal-unicode-property-regex-7.0.0.tgz#498b39cd72536cd7c4b26177d030226eba08cd33"
-  integrity sha512-tM3icA6GhC3ch2SkmSxv7J/hCWKISzwycub6eGsDrFDgukD4dZ/I+x81XgW0YslS6mzNuQ1Cbzh5osjIMgepPQ==
+"@babel/plugin-proposal-unicode-property-regex@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-unicode-property-regex/-/plugin-proposal-unicode-property-regex-7.2.0.tgz#abe7281fe46c95ddc143a65e5358647792039520"
+  integrity sha512-LvRVYb7kikuOtIoUeWTkOxQEV1kYvL5B6U3iWEGCzPNRus1MzJweFqORTj+0jkxozkTSYNJozPOddxmqdqsRpw==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-regex" "^7.0.0"
     regexpu-core "^4.2.0"
 
-"@babel/plugin-syntax-async-generators@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-async-generators/-/plugin-syntax-async-generators-7.0.0.tgz#bf0891dcdbf59558359d0c626fdc9490e20bc13c"
-  integrity sha512-im7ged00ddGKAjcZgewXmp1vxSZQQywuQXe2B1A7kajjZmDeY/ekMPmWr9zJgveSaQH0k7BcGrojQhcK06l0zA==
-  dependencies:
-    "@babel/helper-plugin-utils" "^7.0.0"
-
-"@babel/plugin-syntax-class-properties@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-class-properties/-/plugin-syntax-class-properties-7.0.0.tgz#e051af5d300cbfbcec4a7476e37a803489881634"
-  integrity sha512-cR12g0Qzn4sgkjrbrzWy2GE7m9vMl/sFkqZ3gIpAQdrvPDnLM8180i+ANDFIXfjHo9aqp0ccJlQ0QNZcFUbf9w==
+"@babel/plugin-syntax-async-generators@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-async-generators/-/plugin-syntax-async-generators-7.2.0.tgz#69e1f0db34c6f5a0cf7e2b3323bf159a76c8cb7f"
+  integrity sha512-1ZrIRBv2t0GSlcwVoQ6VgSLpLgiN/FVQUzt9znxo7v2Ov4jJrs8RY8tv0wvDmFN3qIdMKWrmMMW6yZ0G19MfGg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
 "@babel/plugin-syntax-dynamic-import@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-dynamic-import/-/plugin-syntax-dynamic-import-7.0.0.tgz#6dfb7d8b6c3be14ce952962f658f3b7eb54c33ee"
-  integrity sha512-Gt9xNyRrCHCiyX/ZxDGOcBnlJl0I3IWicpZRC4CdC0P5a/I07Ya2OAMEBU+J7GmRFVmIetqEYRko6QYRuKOESw==
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-dynamic-import/-/plugin-syntax-dynamic-import-7.2.0.tgz#69c159ffaf4998122161ad8ebc5e6d1f55df8612"
+  integrity sha512-mVxuJ0YroI/h/tbFTPGZR8cv6ai+STMKNBq0f8hFxsxWjl94qqhsb+wXbpNMDPU3cfR1TIsVFzU3nXyZMqyK4w==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-syntax-flow@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-flow/-/plugin-syntax-flow-7.0.0.tgz#70638aeaad9ee426bc532e51523cff8ff02f6f17"
-  integrity sha512-zGcuZWiWWDa5qTZ6iAnpG0fnX/GOu49pGR5PFvkQ9GmKNaSphXQnlNXh/LG20sqWtNrx/eB6krzfEzcwvUyeFA==
+"@babel/plugin-syntax-flow@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-flow/-/plugin-syntax-flow-7.2.0.tgz#a765f061f803bc48f240c26f8747faf97c26bf7c"
+  integrity sha512-r6YMuZDWLtLlu0kqIim5o/3TNRAlWb073HwT3e2nKf9I8IIvOggPrnILYPsrrKilmn/mYEMCf/Z07w3yQJF6dg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-syntax-json-strings@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-json-strings/-/plugin-syntax-json-strings-7.0.0.tgz#0d259a68090e15b383ce3710e01d5b23f3770cbd"
-  integrity sha512-UlSfNydC+XLj4bw7ijpldc1uZ/HB84vw+U6BTuqMdIEmz/LDe63w/GHtpQMdXWdqQZFeAI9PjnHe/vDhwirhKA==
+"@babel/plugin-syntax-json-strings@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-json-strings/-/plugin-syntax-json-strings-7.2.0.tgz#72bd13f6ffe1d25938129d2a186b11fd62951470"
+  integrity sha512-5UGYnMSLRE1dqqZwug+1LISpA403HzlSfsg6P9VXU6TBjcSHeNlw4DxDx7LgpF+iKZoOG/+uzqoRHTdcUpiZNg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
 "@babel/plugin-syntax-jsx@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-jsx/-/plugin-syntax-jsx-7.0.0.tgz#034d5e2b4e14ccaea2e4c137af7e4afb39375ffd"
-  integrity sha512-PdmL2AoPsCLWxhIr3kG2+F9v4WH06Q3z+NoGVpQgnUNGcagXHq5sB3OXxkSahKq9TLdNMN/AJzFYSOo8UKDMHg==
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-jsx/-/plugin-syntax-jsx-7.2.0.tgz#0b85a3b4bc7cdf4cc4b8bf236335b907ca22e7c7"
+  integrity sha512-VyN4QANJkRW6lDBmENzRszvZf3/4AXaj9YR7GwrWeeN9tEBPuXbmDYVU9bYBN0D70zCWVwUy0HWq2553VCb6Hw==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-syntax-object-rest-spread@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-object-rest-spread/-/plugin-syntax-object-rest-spread-7.0.0.tgz#37d8fbcaf216bd658ea1aebbeb8b75e88ebc549b"
-  integrity sha512-5A0n4p6bIiVe5OvQPxBnesezsgFJdHhSs3uFSvaPdMqtsovajLZ+G2vZyvNe10EzJBWWo3AcHGKhAFUxqwp2dw==
+"@babel/plugin-syntax-object-rest-spread@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-object-rest-spread/-/plugin-syntax-object-rest-spread-7.2.0.tgz#3b7a3e733510c57e820b9142a6579ac8b0dfad2e"
+  integrity sha512-t0JKGgqk2We+9may3t0xDdmneaXmyxq0xieYcKHxIsrJO64n1OiMWNUtc5gQK1PA0NpdCRrtZp4z+IUaKugrSA==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-syntax-optional-catch-binding@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-optional-catch-binding/-/plugin-syntax-optional-catch-binding-7.0.0.tgz#886f72008b3a8b185977f7cb70713b45e51ee475"
-  integrity sha512-Wc+HVvwjcq5qBg1w5RG9o9RVzmCaAg/Vp0erHCKpAYV8La6I94o4GQAmFYNmkzoMO6gzoOSulpKeSSz6mPEoZw==
+"@babel/plugin-syntax-optional-catch-binding@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-optional-catch-binding/-/plugin-syntax-optional-catch-binding-7.2.0.tgz#a94013d6eda8908dfe6a477e7f9eda85656ecf5c"
+  integrity sha512-bDe4xKNhb0LI7IvZHiA13kff0KEfaGX/Hv4lMA9+7TEc63hMNvfKo6ZFpXhKuEp+II/q35Gc4NoMeDZyaUbj9w==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-arrow-functions@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-arrow-functions/-/plugin-transform-arrow-functions-7.0.0.tgz#a6c14875848c68a3b4b3163a486535ef25c7e749"
-  integrity sha512-2EZDBl1WIO/q4DIkIp4s86sdp4ZifL51MoIviLY/gG/mLSuOIEg7J8o6mhbxOTvUJkaN50n+8u41FVsr5KLy/w==
+"@babel/plugin-transform-arrow-functions@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-arrow-functions/-/plugin-transform-arrow-functions-7.2.0.tgz#9aeafbe4d6ffc6563bf8f8372091628f00779550"
+  integrity sha512-ER77Cax1+8/8jCB9fo4Ud161OZzWN5qawi4GusDuRLcDbDG+bIGYY20zb2dfAFdTRGzrfq2xZPvF0R64EHnimg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-async-to-generator@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-async-to-generator/-/plugin-transform-async-to-generator-7.1.0.tgz#109e036496c51dd65857e16acab3bafdf3c57811"
-  integrity sha512-rNmcmoQ78IrvNCIt/R9U+cixUHeYAzgusTFgIAv+wQb9HJU4szhpDD6e5GCACmj/JP5KxuCwM96bX3L9v4ZN/g==
+"@babel/plugin-transform-async-to-generator@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-async-to-generator/-/plugin-transform-async-to-generator-7.2.0.tgz#68b8a438663e88519e65b776f8938f3445b1a2ff"
+  integrity sha512-CEHzg4g5UraReozI9D4fblBYABs7IM6UerAVG7EJVrTLC5keh00aEuLUT+O40+mJCEzaXkYfTCUKIyeDfMOFFQ==
   dependencies:
     "@babel/helper-module-imports" "^7.0.0"
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-remap-async-to-generator" "^7.1.0"
 
-"@babel/plugin-transform-block-scoped-functions@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-block-scoped-functions/-/plugin-transform-block-scoped-functions-7.0.0.tgz#482b3f75103927e37288b3b67b65f848e2aa0d07"
-  integrity sha512-AOBiyUp7vYTqz2Jibe1UaAWL0Hl9JUXEgjFvvvcSc9MVDItv46ViXFw2F7SVt1B5k+KWjl44eeXOAk3UDEaJjQ==
+"@babel/plugin-transform-block-scoped-functions@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-block-scoped-functions/-/plugin-transform-block-scoped-functions-7.2.0.tgz#5d3cc11e8d5ddd752aa64c9148d0db6cb79fd190"
+  integrity sha512-ntQPR6q1/NKuphly49+QiQiTN0O63uOwjdD6dhIjSWBI5xlrbUFh720TIpzBhpnrLfv2tNH/BXvLIab1+BAI0w==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-block-scoping@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-block-scoping/-/plugin-transform-block-scoping-7.0.0.tgz#1745075edffd7cdaf69fab2fb6f9694424b7e9bc"
-  integrity sha512-GWEMCrmHQcYWISilUrk9GDqH4enf3UmhOEbNbNrlNAX1ssH3MsS1xLOS6rdjRVPgA7XXVPn87tRkdTEoA/dxEg==
+"@babel/plugin-transform-block-scoping@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-block-scoping/-/plugin-transform-block-scoping-7.2.0.tgz#f17c49d91eedbcdf5dd50597d16f5f2f770132d4"
+  integrity sha512-vDTgf19ZEV6mx35yiPJe4fS02mPQUUcBNwWQSZFXSzTSbsJFQvHt7DqyS3LK8oOWALFOsJ+8bbqBgkirZteD5Q==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
     lodash "^4.17.10"
 
-"@babel/plugin-transform-classes@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-classes/-/plugin-transform-classes-7.1.0.tgz#ab3f8a564361800cbc8ab1ca6f21108038432249"
-  integrity sha512-rNaqoD+4OCBZjM7VaskladgqnZ1LO6o2UxuWSDzljzW21pN1KXkB7BstAVweZdxQkHAujps5QMNOTWesBciKFg==
+"@babel/plugin-transform-classes@^7.2.0":
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-classes/-/plugin-transform-classes-7.2.2.tgz#6c90542f210ee975aa2aa8c8b5af7fa73a126953"
+  integrity sha512-gEZvgTy1VtcDOaQty1l10T3jQmJKlNVxLDCs+3rCVPr6nMkODLELxViq5X9l+rfxbie3XrfrMCYYY6eX3aOcOQ==
   dependencies:
     "@babel/helper-annotate-as-pure" "^7.0.0"
     "@babel/helper-define-map" "^7.1.0"
@@ -423,103 +423,103 @@
     "@babel/helper-split-export-declaration" "^7.0.0"
     globals "^11.1.0"
 
-"@babel/plugin-transform-computed-properties@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-computed-properties/-/plugin-transform-computed-properties-7.0.0.tgz#2fbb8900cd3e8258f2a2ede909b90e7556185e31"
-  integrity sha512-ubouZdChNAv4AAWAgU7QKbB93NU5sHwInEWfp+/OzJKA02E6Woh9RVoX4sZrbRwtybky/d7baTUqwFx+HgbvMA==
+"@babel/plugin-transform-computed-properties@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-computed-properties/-/plugin-transform-computed-properties-7.2.0.tgz#83a7df6a658865b1c8f641d510c6f3af220216da"
+  integrity sha512-kP/drqTxY6Xt3NNpKiMomfgkNn4o7+vKxK2DDKcBG9sHj51vHqMBGy8wbDS/J4lMxnqs153/T3+DmCEAkC5cpA==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-destructuring@^7.0.0":
-  version "7.1.3"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-destructuring/-/plugin-transform-destructuring-7.1.3.tgz#e69ff50ca01fac6cb72863c544e516c2b193012f"
-  integrity sha512-Mb9M4DGIOspH1ExHOUnn2UUXFOyVTiX84fXCd+6B5iWrQg/QMeeRmSwpZ9lnjYLSXtZwiw80ytVMr3zue0ucYw==
+"@babel/plugin-transform-destructuring@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-destructuring/-/plugin-transform-destructuring-7.2.0.tgz#e75269b4b7889ec3a332cd0d0c8cff8fed0dc6f3"
+  integrity sha512-coVO2Ayv7g0qdDbrNiadE4bU7lvCd9H539m2gMknyVjjMdwF/iCOM7R+E8PkntoqLkltO0rk+3axhpp/0v68VQ==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-dotall-regex@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-dotall-regex/-/plugin-transform-dotall-regex-7.0.0.tgz#73a24da69bc3c370251f43a3d048198546115e58"
-  integrity sha512-00THs8eJxOJUFVx1w8i1MBF4XH4PsAjKjQ1eqN/uCH3YKwP21GCKfrn6YZFZswbOk9+0cw1zGQPHVc1KBlSxig==
+"@babel/plugin-transform-dotall-regex@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-dotall-regex/-/plugin-transform-dotall-regex-7.2.0.tgz#f0aabb93d120a8ac61e925ea0ba440812dbe0e49"
+  integrity sha512-sKxnyHfizweTgKZf7XsXu/CNupKhzijptfTM+bozonIuyVrLWVUvYjE2bhuSBML8VQeMxq4Mm63Q9qvcvUcciQ==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-regex" "^7.0.0"
     regexpu-core "^4.1.3"
 
-"@babel/plugin-transform-duplicate-keys@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-duplicate-keys/-/plugin-transform-duplicate-keys-7.0.0.tgz#a0601e580991e7cace080e4cf919cfd58da74e86"
-  integrity sha512-w2vfPkMqRkdxx+C71ATLJG30PpwtTpW7DDdLqYt2acXU7YjztzeWW2Jk1T6hKqCLYCcEA5UQM/+xTAm+QCSnuQ==
+"@babel/plugin-transform-duplicate-keys@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-duplicate-keys/-/plugin-transform-duplicate-keys-7.2.0.tgz#d952c4930f312a4dbfff18f0b2914e60c35530b3"
+  integrity sha512-q+yuxW4DsTjNceUiTzK0L+AfQ0zD9rWaTLiUqHA8p0gxx7lu1EylenfzjeIWNkPy6e/0VG/Wjw9uf9LueQwLOw==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-exponentiation-operator@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-exponentiation-operator/-/plugin-transform-exponentiation-operator-7.1.0.tgz#9c34c2ee7fd77e02779cfa37e403a2e1003ccc73"
-  integrity sha512-uZt9kD1Pp/JubkukOGQml9tqAeI8NkE98oZnHZ2qHRElmeKCodbTZgOEUtujSCSLhHSBWbzNiFSDIMC4/RBTLQ==
+"@babel/plugin-transform-exponentiation-operator@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-exponentiation-operator/-/plugin-transform-exponentiation-operator-7.2.0.tgz#a63868289e5b4007f7054d46491af51435766008"
+  integrity sha512-umh4hR6N7mu4Elq9GG8TOu9M0bakvlsREEC+ialrQN6ABS4oDQ69qJv1VtR3uxlKMCQMCvzk7vr17RHKcjx68A==
   dependencies:
     "@babel/helper-builder-binary-assignment-operator-visitor" "^7.1.0"
     "@babel/helper-plugin-utils" "^7.0.0"
 
 "@babel/plugin-transform-flow-strip-types@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-flow-strip-types/-/plugin-transform-flow-strip-types-7.0.0.tgz#c40ced34c2783985d90d9f9ac77a13e6fb396a01"
-  integrity sha512-WhXUNb4It5a19RsgKKbQPrjmy4yWOY1KynpEbNw7bnd1QTcrT/EIl3MJvnGgpgvrKyKbqX7nUNOJfkpLOnoDKA==
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-flow-strip-types/-/plugin-transform-flow-strip-types-7.2.3.tgz#e3ac2a594948454e7431c7db33e1d02d51b5cd69"
+  integrity sha512-xnt7UIk9GYZRitqCnsVMjQK1O2eKZwFB3CvvHjf5SGx6K6vr/MScCKQDnf1DxRaj501e3pXjti+inbSXX2ZUoQ==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
-    "@babel/plugin-syntax-flow" "^7.0.0"
+    "@babel/plugin-syntax-flow" "^7.2.0"
 
-"@babel/plugin-transform-for-of@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-for-of/-/plugin-transform-for-of-7.0.0.tgz#f2ba4eadb83bd17dc3c7e9b30f4707365e1c3e39"
-  integrity sha512-TlxKecN20X2tt2UEr2LNE6aqA0oPeMT1Y3cgz8k4Dn1j5ObT8M3nl9aA37LLklx0PBZKETC9ZAf9n/6SujTuXA==
+"@babel/plugin-transform-for-of@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-for-of/-/plugin-transform-for-of-7.2.0.tgz#ab7468befa80f764bb03d3cb5eef8cc998e1cad9"
+  integrity sha512-Kz7Mt0SsV2tQk6jG5bBv5phVbkd0gd27SgYD4hH1aLMJRchM0dzHaXvrWhVZ+WxAlDoAKZ7Uy3jVTW2mKXQ1WQ==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-function-name@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-function-name/-/plugin-transform-function-name-7.1.0.tgz#29c5550d5c46208e7f730516d41eeddd4affadbb"
-  integrity sha512-VxOa1TMlFMtqPW2IDYZQaHsFrq/dDoIjgN098NowhexhZcz3UGlvPgZXuE1jEvNygyWyxRacqDpCZt+par1FNg==
+"@babel/plugin-transform-function-name@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-function-name/-/plugin-transform-function-name-7.2.0.tgz#f7930362829ff99a3174c39f0afcc024ef59731a"
+  integrity sha512-kWgksow9lHdvBC2Z4mxTsvc7YdY7w/V6B2vy9cTIPtLEE9NhwoWivaxdNM/S37elu5bqlLP/qOY906LukO9lkQ==
   dependencies:
     "@babel/helper-function-name" "^7.1.0"
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-literals@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-literals/-/plugin-transform-literals-7.0.0.tgz#2aec1d29cdd24c407359c930cdd89e914ee8ff86"
-  integrity sha512-1NTDBWkeNXgpUcyoVFxbr9hS57EpZYXpje92zv0SUzjdu3enaRwF/l3cmyRnXLtIdyJASyiS6PtybK+CgKf7jA==
+"@babel/plugin-transform-literals@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-literals/-/plugin-transform-literals-7.2.0.tgz#690353e81f9267dad4fd8cfd77eafa86aba53ea1"
+  integrity sha512-2ThDhm4lI4oV7fVQ6pNNK+sx+c/GM5/SaML0w/r4ZB7sAneD/piDJtwdKlNckXeyGK7wlwg2E2w33C/Hh+VFCg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-modules-amd@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-amd/-/plugin-transform-modules-amd-7.1.0.tgz#f9e0a7072c12e296079b5a59f408ff5b97bf86a8"
-  integrity sha512-wt8P+xQ85rrnGNr2x1iV3DW32W8zrB6ctuBkYBbf5/ZzJY99Ob4MFgsZDFgczNU76iy9PWsy4EuxOliDjdKw6A==
+"@babel/plugin-transform-modules-amd@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-amd/-/plugin-transform-modules-amd-7.2.0.tgz#82a9bce45b95441f617a24011dc89d12da7f4ee6"
+  integrity sha512-mK2A8ucqz1qhrdqjS9VMIDfIvvT2thrEsIQzbaTdc5QFzhDjQv2CkJJ5f6BXIkgbmaoax3zBr2RyvV/8zeoUZw==
   dependencies:
     "@babel/helper-module-transforms" "^7.1.0"
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-modules-commonjs@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-commonjs/-/plugin-transform-modules-commonjs-7.1.0.tgz#0a9d86451cbbfb29bd15186306897c67f6f9a05c"
-  integrity sha512-wtNwtMjn1XGwM0AXPspQgvmE6msSJP15CX2RVfpTSTNPLhKhaOjaIfBaVfj4iUZ/VrFSodcFedwtPg/NxwQlPA==
+"@babel/plugin-transform-modules-commonjs@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-commonjs/-/plugin-transform-modules-commonjs-7.2.0.tgz#c4f1933f5991d5145e9cfad1dfd848ea1727f404"
+  integrity sha512-V6y0uaUQrQPXUrmj+hgnks8va2L0zcZymeU7TtWEgdRLNkceafKXEduv7QzgQAE4lT+suwooG9dC7LFhdRAbVQ==
   dependencies:
     "@babel/helper-module-transforms" "^7.1.0"
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-simple-access" "^7.1.0"
 
-"@babel/plugin-transform-modules-systemjs@^7.0.0":
-  version "7.1.3"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.1.3.tgz#2119a3e3db612fd74a19d88652efbfe9613a5db0"
-  integrity sha512-PvTxgjxQAq4pvVUZF3mD5gEtVDuId8NtWkJsZLEJZMZAW3TvgQl1pmydLLN1bM8huHFVVU43lf0uvjQj9FRkKw==
+"@babel/plugin-transform-modules-systemjs@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.2.0.tgz#912bfe9e5ff982924c81d0937c92d24994bb9068"
+  integrity sha512-aYJwpAhoK9a+1+O625WIjvMY11wkB/ok0WClVwmeo3mCjcNRjt+/8gHWrB5i+00mUju0gWsBkQnPpdvQ7PImmQ==
   dependencies:
     "@babel/helper-hoist-variables" "^7.0.0"
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-modules-umd@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-umd/-/plugin-transform-modules-umd-7.1.0.tgz#a29a7d85d6f28c3561c33964442257cc6a21f2a8"
-  integrity sha512-enrRtn5TfRhMmbRwm7F8qOj0qEYByqUvTttPEGimcBH4CJHphjyK1Vg7sdU7JjeEmgSpM890IT/efS2nMHwYig==
+"@babel/plugin-transform-modules-umd@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-modules-umd/-/plugin-transform-modules-umd-7.2.0.tgz#7678ce75169f0877b8eb2235538c074268dd01ae"
+  integrity sha512-BV3bw6MyUH1iIsGhXlOK6sXhmSarZjtJ/vMiD9dNmpY8QXFFQTj+6v92pcfy1iqa8DeAfJFwoxcrS/TUZda6sw==
   dependencies:
     "@babel/helper-module-transforms" "^7.1.0"
     "@babel/helper-plugin-utils" "^7.0.0"
@@ -531,18 +531,18 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-object-super@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-object-super/-/plugin-transform-object-super-7.1.0.tgz#b1ae194a054b826d8d4ba7ca91486d4ada0f91bb"
-  integrity sha512-/O02Je1CRTSk2SSJaq0xjwQ8hG4zhZGNjE8psTsSNPXyLRCODv7/PBozqT5AmQMzp7MI3ndvMhGdqp9c96tTEw==
+"@babel/plugin-transform-object-super@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-object-super/-/plugin-transform-object-super-7.2.0.tgz#b35d4c10f56bab5d650047dad0f1d8e8814b6598"
+  integrity sha512-VMyhPYZISFZAqAPVkiYb7dUe2AsVi2/wCT5+wZdsNO31FojQJa9ns40hzZ6U9f50Jlq4w6qwzdBB2uwqZ00ebg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-replace-supers" "^7.1.0"
 
-"@babel/plugin-transform-parameters@^7.1.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-parameters/-/plugin-transform-parameters-7.1.0.tgz#44f492f9d618c9124026e62301c296bf606a7aed"
-  integrity sha512-vHV7oxkEJ8IHxTfRr3hNGzV446GAb+0hgbA7o/0Jd76s+YzccdWuTU296FOCOl/xweU4t/Ya4g41yWz80RFCRw==
+"@babel/plugin-transform-parameters@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-parameters/-/plugin-transform-parameters-7.2.0.tgz#0d5ad15dc805e2ea866df4dd6682bfe76d1408c2"
+  integrity sha512-kB9+hhUidIgUoBQ0MsxMewhzr8i60nMa2KgeJKQWYrqQpqcBYtnpR+JgkadZVZoaEZ/eKu9mclFaVwhRpLNSzA==
   dependencies:
     "@babel/helper-call-delegate" "^7.1.0"
     "@babel/helper-get-function-arity" "^7.0.0"
@@ -555,95 +555,95 @@
   dependencies:
     regenerator-transform "^0.13.3"
 
-"@babel/plugin-transform-shorthand-properties@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-shorthand-properties/-/plugin-transform-shorthand-properties-7.0.0.tgz#85f8af592dcc07647541a0350e8c95c7bf419d15"
-  integrity sha512-g/99LI4vm5iOf5r1Gdxq5Xmu91zvjhEG5+yZDJW268AZELAu4J1EiFLnkSG3yuUsZyOipVOVUKoGPYwfsTymhw==
+"@babel/plugin-transform-shorthand-properties@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-shorthand-properties/-/plugin-transform-shorthand-properties-7.2.0.tgz#6333aee2f8d6ee7e28615457298934a3b46198f0"
+  integrity sha512-QP4eUM83ha9zmYtpbnyjTLAGKQritA5XW/iG9cjtuOI8s1RuL/3V6a3DeSHfKutJQ+ayUfeZJPcnCYEQzaPQqg==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-spread@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-spread/-/plugin-transform-spread-7.0.0.tgz#93583ce48dd8c85e53f3a46056c856e4af30b49b"
-  integrity sha512-L702YFy2EvirrR4shTj0g2xQp7aNwZoWNCkNu2mcoU0uyzMl0XRwDSwzB/xp6DSUFiBmEXuyAyEN16LsgVqGGQ==
+"@babel/plugin-transform-spread@^7.2.0":
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-spread/-/plugin-transform-spread-7.2.2.tgz#3103a9abe22f742b6d406ecd3cd49b774919b406"
+  integrity sha512-KWfky/58vubwtS0hLqEnrWJjsMGaOeSBn90Ezn5Jeg9Z8KKHmELbP1yGylMlm5N6TPKeY9A2+UaSYLdxahg01w==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-sticky-regex@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-sticky-regex/-/plugin-transform-sticky-regex-7.0.0.tgz#30a9d64ac2ab46eec087b8530535becd90e73366"
-  integrity sha512-LFUToxiyS/WD+XEWpkx/XJBrUXKewSZpzX68s+yEOtIbdnsRjpryDw9U06gYc6klYEij/+KQVRnD3nz3AoKmjw==
+"@babel/plugin-transform-sticky-regex@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-sticky-regex/-/plugin-transform-sticky-regex-7.2.0.tgz#a1e454b5995560a9c1e0d537dfc15061fd2687e1"
+  integrity sha512-KKYCoGaRAf+ckH8gEL3JHUaFVyNHKe3ASNsZ+AlktgHevvxGigoIttrEJb8iKN03Q7Eazlv1s6cx2B2cQ3Jabw==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-regex" "^7.0.0"
 
-"@babel/plugin-transform-template-literals@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-template-literals/-/plugin-transform-template-literals-7.0.0.tgz#084f1952efe5b153ddae69eb8945f882c7a97c65"
-  integrity sha512-vA6rkTCabRZu7Nbl9DfLZE1imj4tzdWcg5vtdQGvj+OH9itNNB6hxuRMHuIY8SGnEt1T9g5foqs9LnrHzsqEFg==
+"@babel/plugin-transform-template-literals@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-template-literals/-/plugin-transform-template-literals-7.2.0.tgz#d87ed01b8eaac7a92473f608c97c089de2ba1e5b"
+  integrity sha512-FkPix00J9A/XWXv4VoKJBMeSkyY9x/TqIh76wzcdfl57RJJcf8CehQ08uwfhCDNtRQYtHQKBTwKZDEyjE13Lwg==
   dependencies:
     "@babel/helper-annotate-as-pure" "^7.0.0"
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-typeof-symbol@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-typeof-symbol/-/plugin-transform-typeof-symbol-7.0.0.tgz#4dcf1e52e943e5267b7313bff347fdbe0f81cec9"
-  integrity sha512-1r1X5DO78WnaAIvs5uC48t41LLckxsYklJrZjNKcevyz83sF2l4RHbw29qrCPr/6ksFsdfRpT/ZgxNWHXRnffg==
+"@babel/plugin-transform-typeof-symbol@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-typeof-symbol/-/plugin-transform-typeof-symbol-7.2.0.tgz#117d2bcec2fbf64b4b59d1f9819894682d29f2b2"
+  integrity sha512-2LNhETWYxiYysBtrBTqL8+La0jIoQQnIScUJc74OYvUGRmkskNY4EzLCnjHBzdmb38wqtTaixpo1NctEcvMDZw==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-transform-unicode-regex@^7.0.0":
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-unicode-regex/-/plugin-transform-unicode-regex-7.0.0.tgz#c6780e5b1863a76fe792d90eded9fcd5b51d68fc"
-  integrity sha512-uJBrJhBOEa3D033P95nPHu3nbFwFE9ZgXsfEitzoIXIwqAZWk7uXcg06yFKXz9FSxBH5ucgU/cYdX0IV8ldHKw==
+"@babel/plugin-transform-unicode-regex@^7.2.0":
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-unicode-regex/-/plugin-transform-unicode-regex-7.2.0.tgz#4eb8db16f972f8abb5062c161b8b115546ade08b"
+  integrity sha512-m48Y0lMhrbXEJnVUaYly29jRXbQ3ksxPrS1Tg8t+MHqzXhtBYAvI51euOBaoAlZLPHsieY9XPVMf80a5x0cPcA==
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/helper-regex" "^7.0.0"
     regexpu-core "^4.1.3"
 
 "@babel/preset-env@^7.0.0":
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.1.0.tgz#e67ea5b0441cfeab1d6f41e9b5c79798800e8d11"
-  integrity sha512-ZLVSynfAoDHB/34A17/JCZbyrzbQj59QC1Anyueb4Bwjh373nVPq5/HMph0z+tCmcDjXDe+DlKQq9ywQuvWrQg==
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/@babel/preset-env/-/preset-env-7.2.3.tgz#948c8df4d4609c99c7e0130169f052ea6a7a8933"
+  integrity sha512-AuHzW7a9rbv5WXmvGaPX7wADxFkZIqKlbBh1dmZUQp4iwiPpkE/Qnrji6SC4UQCQzvWY/cpHET29eUhXS9cLPw==
   dependencies:
     "@babel/helper-module-imports" "^7.0.0"
     "@babel/helper-plugin-utils" "^7.0.0"
-    "@babel/plugin-proposal-async-generator-functions" "^7.1.0"
-    "@babel/plugin-proposal-json-strings" "^7.0.0"
-    "@babel/plugin-proposal-object-rest-spread" "^7.0.0"
-    "@babel/plugin-proposal-optional-catch-binding" "^7.0.0"
-    "@babel/plugin-proposal-unicode-property-regex" "^7.0.0"
-    "@babel/plugin-syntax-async-generators" "^7.0.0"
-    "@babel/plugin-syntax-object-rest-spread" "^7.0.0"
-    "@babel/plugin-syntax-optional-catch-binding" "^7.0.0"
-    "@babel/plugin-transform-arrow-functions" "^7.0.0"
-    "@babel/plugin-transform-async-to-generator" "^7.1.0"
-    "@babel/plugin-transform-block-scoped-functions" "^7.0.0"
-    "@babel/plugin-transform-block-scoping" "^7.0.0"
-    "@babel/plugin-transform-classes" "^7.1.0"
-    "@babel/plugin-transform-computed-properties" "^7.0.0"
-    "@babel/plugin-transform-destructuring" "^7.0.0"
-    "@babel/plugin-transform-dotall-regex" "^7.0.0"
-    "@babel/plugin-transform-duplicate-keys" "^7.0.0"
-    "@babel/plugin-transform-exponentiation-operator" "^7.1.0"
-    "@babel/plugin-transform-for-of" "^7.0.0"
-    "@babel/plugin-transform-function-name" "^7.1.0"
-    "@babel/plugin-transform-literals" "^7.0.0"
-    "@babel/plugin-transform-modules-amd" "^7.1.0"
-    "@babel/plugin-transform-modules-commonjs" "^7.1.0"
-    "@babel/plugin-transform-modules-systemjs" "^7.0.0"
-    "@babel/plugin-transform-modules-umd" "^7.1.0"
+    "@babel/plugin-proposal-async-generator-functions" "^7.2.0"
+    "@babel/plugin-proposal-json-strings" "^7.2.0"
+    "@babel/plugin-proposal-object-rest-spread" "^7.2.0"
+    "@babel/plugin-proposal-optional-catch-binding" "^7.2.0"
+    "@babel/plugin-proposal-unicode-property-regex" "^7.2.0"
+    "@babel/plugin-syntax-async-generators" "^7.2.0"
+    "@babel/plugin-syntax-object-rest-spread" "^7.2.0"
+    "@babel/plugin-syntax-optional-catch-binding" "^7.2.0"
+    "@babel/plugin-transform-arrow-functions" "^7.2.0"
+    "@babel/plugin-transform-async-to-generator" "^7.2.0"
+    "@babel/plugin-transform-block-scoped-functions" "^7.2.0"
+    "@babel/plugin-transform-block-scoping" "^7.2.0"
+    "@babel/plugin-transform-classes" "^7.2.0"
+    "@babel/plugin-transform-computed-properties" "^7.2.0"
+    "@babel/plugin-transform-destructuring" "^7.2.0"
+    "@babel/plugin-transform-dotall-regex" "^7.2.0"
+    "@babel/plugin-transform-duplicate-keys" "^7.2.0"
+    "@babel/plugin-transform-exponentiation-operator" "^7.2.0"
+    "@babel/plugin-transform-for-of" "^7.2.0"
+    "@babel/plugin-transform-function-name" "^7.2.0"
+    "@babel/plugin-transform-literals" "^7.2.0"
+    "@babel/plugin-transform-modules-amd" "^7.2.0"
+    "@babel/plugin-transform-modules-commonjs" "^7.2.0"
+    "@babel/plugin-transform-modules-systemjs" "^7.2.0"
+    "@babel/plugin-transform-modules-umd" "^7.2.0"
     "@babel/plugin-transform-new-target" "^7.0.0"
-    "@babel/plugin-transform-object-super" "^7.1.0"
-    "@babel/plugin-transform-parameters" "^7.1.0"
+    "@babel/plugin-transform-object-super" "^7.2.0"
+    "@babel/plugin-transform-parameters" "^7.2.0"
     "@babel/plugin-transform-regenerator" "^7.0.0"
-    "@babel/plugin-transform-shorthand-properties" "^7.0.0"
-    "@babel/plugin-transform-spread" "^7.0.0"
-    "@babel/plugin-transform-sticky-regex" "^7.0.0"
-    "@babel/plugin-transform-template-literals" "^7.0.0"
-    "@babel/plugin-transform-typeof-symbol" "^7.0.0"
-    "@babel/plugin-transform-unicode-regex" "^7.0.0"
-    browserslist "^4.1.0"
+    "@babel/plugin-transform-shorthand-properties" "^7.2.0"
+    "@babel/plugin-transform-spread" "^7.2.0"
+    "@babel/plugin-transform-sticky-regex" "^7.2.0"
+    "@babel/plugin-transform-template-literals" "^7.2.0"
+    "@babel/plugin-transform-typeof-symbol" "^7.2.0"
+    "@babel/plugin-transform-unicode-regex" "^7.2.0"
+    browserslist "^4.3.4"
     invariant "^2.2.2"
     js-levenshtein "^1.1.3"
     semver "^5.3.0"
@@ -671,14 +671,14 @@
     babylon "7.0.0-beta.44"
     lodash "^4.2.0"
 
-"@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.1.2":
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.1.2.tgz#090484a574fef5a2d2d7726a674eceda5c5b5644"
-  integrity sha512-SY1MmplssORfFiLDcOETrW7fCLl+PavlwMh92rrGcikQaRq4iWPVH0MpwPpY3etVMx6RnDjXtr6VZYr/IbP/Ag==
+"@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.1.2", "@babel/template@^7.2.2":
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.2.2.tgz#005b3fdf0ed96e88041330379e0da9a708eb2907"
+  integrity sha512-zRL0IMM02AUDwghf5LMSSDEz7sBCO2YnNmpg3uWTZj/v1rcG2BmQUvaGU8GhU8BvfMh1k2KIAYZ7Ji9KXPUg7g==
   dependencies:
     "@babel/code-frame" "^7.0.0"
-    "@babel/parser" "^7.1.2"
-    "@babel/types" "^7.1.2"
+    "@babel/parser" "^7.2.2"
+    "@babel/types" "^7.2.2"
 
 "@babel/traverse@7.0.0-beta.44":
   version "7.0.0-beta.44"
@@ -696,18 +696,18 @@
     invariant "^2.2.0"
     lodash "^4.2.0"
 
-"@babel/traverse@^7.0.0", "@babel/traverse@^7.1.0":
-  version "7.1.4"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.1.4.tgz#f4f83b93d649b4b2c91121a9087fa2fa949ec2b4"
-  integrity sha512-my9mdrAIGdDiSVBuMjpn/oXYpva0/EZwWL3sm3Wcy/AVWO2eXnsoZruOT9jOGNRXU8KbCIu5zsKnXcAJ6PcV6Q==
+"@babel/traverse@^7.0.0", "@babel/traverse@^7.1.0", "@babel/traverse@^7.1.5", "@babel/traverse@^7.2.2", "@babel/traverse@^7.2.3":
+  version "7.2.3"
+  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.2.3.tgz#7ff50cefa9c7c0bd2d81231fdac122f3957748d8"
+  integrity sha512-Z31oUD/fJvEWVR0lNZtfgvVt512ForCTNKYcJBGbPb1QZfve4WGH8Wsy7+Mev33/45fhP/hwQtvgusNdcCMgSw==
   dependencies:
     "@babel/code-frame" "^7.0.0"
-    "@babel/generator" "^7.1.3"
+    "@babel/generator" "^7.2.2"
     "@babel/helper-function-name" "^7.1.0"
     "@babel/helper-split-export-declaration" "^7.0.0"
-    "@babel/parser" "^7.1.3"
-    "@babel/types" "^7.1.3"
-    debug "^3.1.0"
+    "@babel/parser" "^7.2.3"
+    "@babel/types" "^7.2.2"
+    debug "^4.1.0"
     globals "^11.1.0"
     lodash "^4.17.10"
 
@@ -720,10 +720,10 @@
     lodash "^4.2.0"
     to-fast-properties "^2.0.0"
 
-"@babel/types@^7.0.0", "@babel/types@^7.1.2", "@babel/types@^7.1.3":
-  version "7.1.3"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.1.3.tgz#3a767004567060c2f40fca49a304712c525ee37d"
-  integrity sha512-RpPOVfK+yatXyn8n4PB1NW6k9qjinrXrRR8ugBN8fD6hCy5RXI6PSbVqpOJBO9oSaY7Nom4ohj35feb0UR9hSA==
+"@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.2.2":
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.2.2.tgz#44e10fc24e33af524488b716cdaee5360ea8ed1e"
+  integrity sha512-fKCuD6UFUMkR541eDWL+2ih/xFZBXPOg/7EQFeTluMDebfqR4jrpaCjLhkWlQS4hT6nRa2PMEgXKbRB5/H2fpg==
   dependencies:
     esutils "^2.0.2"
     lodash "^4.17.10"
@@ -736,25 +736,25 @@
   dependencies:
     any-observable "^0.3.0"
 
+"@types/anymatch@*":
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/@types/anymatch/-/anymatch-1.3.0.tgz#d1d55958d1fccc5527d4aba29fc9c4b942f563ff"
+  integrity sha512-7WcbyctkE8GTzogDb0ulRAEw7v8oIS54ft9mQTU7PfM0hp5e+8kpa+HeQ7IQrFbKtJXBKcZ4bh+Em9dTw5L6AQ==
+
 "@types/estree@0.0.39":
   version "0.0.39"
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-0.0.39.tgz#e177e699ee1b8c22d23174caaa7422644389509f"
   integrity sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==
 
-"@types/node@*":
-  version "10.12.0"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.0.tgz#ea6dcbddbc5b584c83f06c60e82736d8fbb0c235"
-  integrity sha512-3TUHC3jsBAB7qVRGxT6lWyYo2v96BMmD2PTcl47H25Lu7UXtFH/2qqmKiVrnel6Ne//0TFYf6uvNX+HW2FRkLQ==
+"@types/node@*", "@types/node@^10.12.18":
+  version "10.12.18"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.18.tgz#1d3ca764718915584fcd9f6344621b7672665c67"
+  integrity sha512-fh+pAqt4xRzPfqA6eh3Z2y6fyZavRIumvjhaCL753+TVkGKGhpPeyrJG2JftD0T9q4GF00KjefsQ+PQNDdWQaQ==
 
-"@types/node@^8.0.33":
-  version "8.10.36"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.10.36.tgz#eac05d576fbcd0b4ea3c912dc58c20475c08d9e4"
-  integrity sha512-SL6KhfM7PTqiFmbCW3eVNwVBZ+88Mrzbuvn9olPsfv43mbiWaFY+nRcz/TGGku0/lc2FepdMbImdMY1JrQ+zbw==
-
-"@types/tapable@^0":
-  version "0.2.5"
-  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-0.2.5.tgz#2443fc12da514c81346b1a665675559cee21fa75"
-  integrity sha512-dEoVvo/I9QFomyhY+4Q6Qk+I+dhG59TYceZgC6Q0mCifVPErx6Y83PNTKGDS5e9h9Eti6q0S2mm16BU6iQK+3w==
+"@types/tapable@*":
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-1.0.4.tgz#b4ffc7dc97b498c969b360a41eee247f82616370"
+  integrity sha512-78AdXtlhpCHT0K3EytMpn4JNxaf5tbqbLcbIRoQIHzpTIyjpxLQKRoxU55ujBXAtg3Nl2h/XWvfDa9dsMOd0pQ==
 
 "@types/uglify-js@*":
   version "3.0.4"
@@ -763,157 +763,158 @@
   dependencies:
     source-map "^0.6.1"
 
-"@types/webpack@^3.0.13":
-  version "3.8.17"
-  resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-3.8.17.tgz#08d1220432a8c0b11a28ed16ca09d04478a420ff"
-  integrity sha512-tPw9kaDqwIufHhl6tctCCKCzyeZwXqheeOJ0DRJP5AvQIA7CxeWq4xdSUdcOYHTYOBDoVHYEsXqoo4/vxIVHWQ==
+"@types/webpack@^4.4.22":
+  version "4.4.22"
+  resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-4.4.22.tgz#c4a5ea8b74a31b579537515bcfe86d2b2a34382c"
+  integrity sha512-PxAAzli3krZX9rCeONSR5Z9v4CR/2HPsKsiVRFNDo9OZefN+dTemteMHZnYkddOu4bqoYqJTJ724gLy0ZySXOw==
   dependencies:
+    "@types/anymatch" "*"
     "@types/node" "*"
-    "@types/tapable" "^0"
+    "@types/tapable" "*"
     "@types/uglify-js" "*"
     source-map "^0.6.0"
 
-"@webassemblyjs/ast@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.7.8.tgz#f31f480debeef957f01b623f27eabc695fa4fe8f"
-  integrity sha512-dOrtdtEyB8sInpl75yLPNksY4sRl0j/+t6aHyB/YA+ab9hV3Fo7FmG12FHzP+2MvWVAJtDb+6eXR5EZbZJ+uVg==
-  dependencies:
-    "@webassemblyjs/helper-module-context" "1.7.8"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
-    "@webassemblyjs/wast-parser" "1.7.8"
-
-"@webassemblyjs/floating-point-hex-parser@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.7.8.tgz#1b3ed0e27e384032254e9322fc646dd3e70ef1b9"
-  integrity sha512-kn2zNKGsbql5i56VAgRYkpG+VazqHhQQZQycT2uXAazrAEDs23gy+Odkh5VblybjnwX2/BITkDtNmSO76hdIvQ==
-
-"@webassemblyjs/helper-api-error@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.7.8.tgz#a2b49c11f615e736f815ec927f035dcfa690d572"
-  integrity sha512-xUwxDXsd1dUKArJEP5wWM5zxgCSwZApSOJyP1XO7M8rNUChUDblcLQ4FpzTpWG2YeylMwMl1MlP5Ztryiz1x4g==
-
-"@webassemblyjs/helper-buffer@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.7.8.tgz#3fc66bfa09c1c60e824cf3d5887826fac062877d"
-  integrity sha512-WXiIMnuvuwlhWvVOm8xEXU9DnHaa3AgAU0ZPfvY8vO1cSsmYb2WbGbHnMLgs43vXnA7XAob9b56zuZaMkxpCBg==
-
-"@webassemblyjs/helper-code-frame@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.7.8.tgz#cc5a7e9522b70e7580df056dfd34020cf29645b0"
-  integrity sha512-TLQxyD9qGOIdX5LPQOPo0Ernd88U5rHkFb8WAjeMIeA0sPjCHeVPaGqUGGIXjUcblUkjuDAc07bruCcNHUrHDA==
-  dependencies:
-    "@webassemblyjs/wast-printer" "1.7.8"
-
-"@webassemblyjs/helper-fsm@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.7.8.tgz#fe4607430af466912797c21acafd3046080182ea"
-  integrity sha512-TjK0CnD8hAPkV5mbSp5aWl6SO1+H3WFcjWtixWoy8EMA99YnNzYhpc/WSYWhf7yrhpzkq5tZB0tvLK3Svr3IXA==
-
-"@webassemblyjs/helper-module-context@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.7.8.tgz#3c2e7ee93d14ff4768ba66fb1be42fdc9dc7160a"
-  integrity sha512-uCutAKR7Nm0VsFixcvnB4HhAyHouNbj0Dx1p7eRjFjXGGZ+N7ftTaG1ZbWCasAEbtwGj54LP8+lkBZdTCPmLGg==
-
-"@webassemblyjs/helper-wasm-bytecode@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.7.8.tgz#89bdb78cd6dd5209ae2ed2925de78d0f0e00b6f0"
-  integrity sha512-AdCCE3BMW6V34WYaKUmPgVHa88t2Z14P4/0LjLwuGkI0X6pf7nzp0CehzVVk51cKm2ymVXjl9dCG+gR1yhITIQ==
-
-"@webassemblyjs/helper-wasm-section@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.7.8.tgz#c68ef7d26a6fc12421b2e6e56f9bc810dfb33e87"
-  integrity sha512-BkBhYQuzyl4hgTGOKo87Vdw6f9nj8HhI7WYpI0MCC5qFa5ahrAPOGgyETVdnRbv+Rjukl9MxxfDmVcVC435lDg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/helper-buffer" "1.7.8"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
-    "@webassemblyjs/wasm-gen" "1.7.8"
-
-"@webassemblyjs/ieee754@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.7.8.tgz#1f37974b13cb486a9237e73ce04cac7a2f1265ed"
-  integrity sha512-tOarWChdG1a3y1yqCX0JMDKzrat5tQe4pV6K/TX19BcXsBLYxFQOL1DEDa5KG9syeyvCrvZ+i1+Mv1ExngvktQ==
+"@webassemblyjs/ast@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.7.11.tgz#b988582cafbb2b095e8b556526f30c90d057cace"
+  integrity sha512-ZEzy4vjvTzScC+SH8RBssQUawpaInUdMTYwYYLh54/s8TuT0gBLuyUnppKsVyZEi876VmmStKsUs28UxPgdvrA==
+  dependencies:
+    "@webassemblyjs/helper-module-context" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/wast-parser" "1.7.11"
+
+"@webassemblyjs/floating-point-hex-parser@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.7.11.tgz#a69f0af6502eb9a3c045555b1a6129d3d3f2e313"
+  integrity sha512-zY8dSNyYcgzNRNT666/zOoAyImshm3ycKdoLsyDw/Bwo6+/uktb7p4xyApuef1dwEBo/U/SYQzbGBvV+nru2Xg==
+
+"@webassemblyjs/helper-api-error@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.7.11.tgz#c7b6bb8105f84039511a2b39ce494f193818a32a"
+  integrity sha512-7r1qXLmiglC+wPNkGuXCvkmalyEstKVwcueZRP2GNC2PAvxbLYwLLPr14rcdJaE4UtHxQKfFkuDFuv91ipqvXg==
+
+"@webassemblyjs/helper-buffer@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.7.11.tgz#3122d48dcc6c9456ed982debe16c8f37101df39b"
+  integrity sha512-MynuervdylPPh3ix+mKZloTcL06P8tenNH3sx6s0qE8SLR6DdwnfgA7Hc9NSYeob2jrW5Vql6GVlsQzKQCa13w==
+
+"@webassemblyjs/helper-code-frame@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.7.11.tgz#cf8f106e746662a0da29bdef635fcd3d1248364b"
+  integrity sha512-T8ESC9KMXFTXA5urJcyor5cn6qWeZ4/zLPyWeEXZ03hj/x9weSokGNkVCdnhSabKGYWxElSdgJ+sFa9G/RdHNw==
+  dependencies:
+    "@webassemblyjs/wast-printer" "1.7.11"
+
+"@webassemblyjs/helper-fsm@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.7.11.tgz#df38882a624080d03f7503f93e3f17ac5ac01181"
+  integrity sha512-nsAQWNP1+8Z6tkzdYlXT0kxfa2Z1tRTARd8wYnc/e3Zv3VydVVnaeePgqUzFrpkGUyhUUxOl5ML7f1NuT+gC0A==
+
+"@webassemblyjs/helper-module-context@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.7.11.tgz#d874d722e51e62ac202476935d649c802fa0e209"
+  integrity sha512-JxfD5DX8Ygq4PvXDucq0M+sbUFA7BJAv/GGl9ITovqE+idGX+J3QSzJYz+LwQmL7fC3Rs+utvWoJxDb6pmC0qg==
+
+"@webassemblyjs/helper-wasm-bytecode@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.7.11.tgz#dd9a1e817f1c2eb105b4cf1013093cb9f3c9cb06"
+  integrity sha512-cMXeVS9rhoXsI9LLL4tJxBgVD/KMOKXuFqYb5oCJ/opScWpkCMEz9EJtkonaNcnLv2R3K5jIeS4TRj/drde1JQ==
+
+"@webassemblyjs/helper-wasm-section@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.7.11.tgz#9c9ac41ecf9fbcfffc96f6d2675e2de33811e68a"
+  integrity sha512-8ZRY5iZbZdtNFE5UFunB8mmBEAbSI3guwbrsCl4fWdfRiAcvqQpeqd5KHhSWLL5wuxo53zcaGZDBU64qgn4I4Q==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-buffer" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/wasm-gen" "1.7.11"
+
+"@webassemblyjs/ieee754@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.7.11.tgz#c95839eb63757a31880aaec7b6512d4191ac640b"
+  integrity sha512-Mmqx/cS68K1tSrvRLtaV/Lp3NZWzXtOHUW2IvDvl2sihAwJh4ACE0eL6A8FvMyDG9abes3saB6dMimLOs+HMoQ==
   dependencies:
     "@xtuc/ieee754" "^1.2.0"
 
-"@webassemblyjs/leb128@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.7.8.tgz#1bee83426819192db2ea1a234b84c7ebc6d34c1f"
-  integrity sha512-GCYeGPgUFWJiZuP4NICbcyUQNxNLJIf476Ei+K+jVuuebtLpfvwkvYT6iTUE7oZYehhkor4Zz2g7SJ/iZaPudQ==
+"@webassemblyjs/leb128@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.7.11.tgz#d7267a1ee9c4594fd3f7e37298818ec65687db63"
+  integrity sha512-vuGmgZjjp3zjcerQg+JA+tGOncOnJLWVkt8Aze5eWQLwTQGNgVLcyOTqgSCxWTR4J42ijHbBxnuRaL1Rv7XMdw==
   dependencies:
     "@xtuc/long" "4.2.1"
 
-"@webassemblyjs/utf8@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.7.8.tgz#2b489d5cf43e0aebb93d8e2d792aff9879c61f05"
-  integrity sha512-9X+f0VV+xNXW2ujfIRSXBJENGE6Qh7bNVKqu3yDjTFB3ar3nsThsGBBKdTG58aXOm2iUH6v28VIf88ymPXODHA==
-
-"@webassemblyjs/wasm-edit@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.7.8.tgz#f8bdbe7088718eca27b1c349bb7c06b8a457950c"
-  integrity sha512-6D3Hm2gFixrfyx9XjSON4ml1FZTugqpkIz5Awvrou8fnpyprVzcm4X8pyGRtA2Piixjl3DqmX/HB1xdWyE097A==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/helper-buffer" "1.7.8"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
-    "@webassemblyjs/helper-wasm-section" "1.7.8"
-    "@webassemblyjs/wasm-gen" "1.7.8"
-    "@webassemblyjs/wasm-opt" "1.7.8"
-    "@webassemblyjs/wasm-parser" "1.7.8"
-    "@webassemblyjs/wast-printer" "1.7.8"
-
-"@webassemblyjs/wasm-gen@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.7.8.tgz#7e8abf1545eae74ac6781d545c034af3cfd0c7d5"
-  integrity sha512-a7O/wE6eBeVKKUYgpMK7NOHmMADD85rSXLe3CqrWRDwWff5y3cSVbzpN6Qv3z6C4hdkpq9qyij1Ga1kemOZGvQ==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
-    "@webassemblyjs/ieee754" "1.7.8"
-    "@webassemblyjs/leb128" "1.7.8"
-    "@webassemblyjs/utf8" "1.7.8"
-
-"@webassemblyjs/wasm-opt@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.7.8.tgz#7ada6e211914728fce02ff0ff9c344edc6d41f26"
-  integrity sha512-3lbQ0PT81NHCdi1sR/7+SNpZadM4qYcTSr62nFFAA7e5lFwJr14M1Gi+A/Y3PgcDWOHYjsaNGPpPU0H03N6Blg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/helper-buffer" "1.7.8"
-    "@webassemblyjs/wasm-gen" "1.7.8"
-    "@webassemblyjs/wasm-parser" "1.7.8"
-
-"@webassemblyjs/wasm-parser@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.7.8.tgz#dac47c291fb6a3e63529aecd647592cd34afbf94"
-  integrity sha512-rZ/zlhp9DHR/05zh1MbAjT2t624sjrPP/OkJCjXqzm7ynH+nIdNcn9Ixc+qzPMFXhIrk0rBoQ3to6sEIvHh9jQ==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/helper-api-error" "1.7.8"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.8"
-    "@webassemblyjs/ieee754" "1.7.8"
-    "@webassemblyjs/leb128" "1.7.8"
-    "@webassemblyjs/utf8" "1.7.8"
-
-"@webassemblyjs/wast-parser@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.7.8.tgz#f8aab9a450c048c1f9537695c89faeb92fabfba5"
-  integrity sha512-Q/zrvtUvzWuSiJMcSp90fi6gp2nraiHXjTV2VgAluVdVapM4gy1MQn7akja2p6eSBDQpKJPJ6P4TxRkghRS5dg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/floating-point-hex-parser" "1.7.8"
-    "@webassemblyjs/helper-api-error" "1.7.8"
-    "@webassemblyjs/helper-code-frame" "1.7.8"
-    "@webassemblyjs/helper-fsm" "1.7.8"
+"@webassemblyjs/utf8@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.7.11.tgz#06d7218ea9fdc94a6793aa92208160db3d26ee82"
+  integrity sha512-C6GFkc7aErQIAH+BMrIdVSmW+6HSe20wg57HEC1uqJP8E/xpMjXqQUxkQw07MhNDSDcGpxI9G5JSNOQCqJk4sA==
+
+"@webassemblyjs/wasm-edit@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.7.11.tgz#8c74ca474d4f951d01dbae9bd70814ee22a82005"
+  integrity sha512-FUd97guNGsCZQgeTPKdgxJhBXkUbMTY6hFPf2Y4OedXd48H97J+sOY2Ltaq6WGVpIH8o/TGOVNiVz/SbpEMJGg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-buffer" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/helper-wasm-section" "1.7.11"
+    "@webassemblyjs/wasm-gen" "1.7.11"
+    "@webassemblyjs/wasm-opt" "1.7.11"
+    "@webassemblyjs/wasm-parser" "1.7.11"
+    "@webassemblyjs/wast-printer" "1.7.11"
+
+"@webassemblyjs/wasm-gen@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.7.11.tgz#9bbba942f22375686a6fb759afcd7ac9c45da1a8"
+  integrity sha512-U/KDYp7fgAZX5KPfq4NOupK/BmhDc5Kjy2GIqstMhvvdJRcER/kUsMThpWeRP8BMn4LXaKhSTggIJPOeYHwISA==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/ieee754" "1.7.11"
+    "@webassemblyjs/leb128" "1.7.11"
+    "@webassemblyjs/utf8" "1.7.11"
+
+"@webassemblyjs/wasm-opt@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.7.11.tgz#b331e8e7cef8f8e2f007d42c3a36a0580a7d6ca7"
+  integrity sha512-XynkOwQyiRidh0GLua7SkeHvAPXQV/RxsUeERILmAInZegApOUAIJfRuPYe2F7RcjOC9tW3Cb9juPvAC/sCqvg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-buffer" "1.7.11"
+    "@webassemblyjs/wasm-gen" "1.7.11"
+    "@webassemblyjs/wasm-parser" "1.7.11"
+
+"@webassemblyjs/wasm-parser@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.7.11.tgz#6e3d20fa6a3519f6b084ef9391ad58211efb0a1a"
+  integrity sha512-6lmXRTrrZjYD8Ng8xRyvyXQJYUQKYSXhJqXOBLw24rdiXsHAOlvw5PhesjdcaMadU/pyPQOJ5dHreMjBxwnQKg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-api-error" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/ieee754" "1.7.11"
+    "@webassemblyjs/leb128" "1.7.11"
+    "@webassemblyjs/utf8" "1.7.11"
+
+"@webassemblyjs/wast-parser@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.7.11.tgz#25bd117562ca8c002720ff8116ef9072d9ca869c"
+  integrity sha512-lEyVCg2np15tS+dm7+JJTNhNWq9yTZvi3qEhAIIOaofcYlUp0UR5/tVqOwa/gXYr3gjwSZqw+/lS9dscyLelbQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/floating-point-hex-parser" "1.7.11"
+    "@webassemblyjs/helper-api-error" "1.7.11"
+    "@webassemblyjs/helper-code-frame" "1.7.11"
+    "@webassemblyjs/helper-fsm" "1.7.11"
     "@xtuc/long" "4.2.1"
 
-"@webassemblyjs/wast-printer@1.7.8":
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.7.8.tgz#e7e965782c1912f6a965f14a53ff43d8ad0403a5"
-  integrity sha512-GllIthRtwTxRDAURRNXscu7Napzmdf1jt1gpiZiK/QN4fH0lSGs3OTmvdfsMNP7tqI4B3ZtfaaWRlNIQug6Xyg==
+"@webassemblyjs/wast-printer@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.7.11.tgz#c4245b6de242cb50a2cc950174fdbf65c78d7813"
+  integrity sha512-m5vkAsuJ32QpkdkDOUPGSltrg8Cuk3KBx4YrmAGQwCZPRdUHXxG4phIOuuycLemHFr74sWL9Wthqss4fzdzSwg==
   dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/wast-parser" "1.7.8"
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/wast-parser" "1.7.11"
     "@xtuc/long" "4.2.1"
 
 "@xtuc/ieee754@^1.2.0":
@@ -959,22 +960,25 @@ acorn-dynamic-import@^3.0.0:
   dependencies:
     acorn "^5.0.0"
 
-acorn-jsx@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-4.1.1.tgz#e8e41e48ea2fe0c896740610ab6a4ffd8add225e"
-  integrity sha512-JY+iV6r+cO21KtntVvFkD+iqjtdpRUpGqKWgfkCdZq1R+kbreEl8EcdcJR4SmiIgsIQT33s6QzheQ9a275Q8xw==
-  dependencies:
-    acorn "^5.0.3"
+acorn-jsx@^5.0.0:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.0.1.tgz#32a064fd925429216a09b141102bfdd185fae40e"
+  integrity sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==
 
-acorn@^5.0.0, acorn@^5.0.3, acorn@^5.2.1, acorn@^5.6.0, acorn@^5.6.2:
+acorn@^5.0.0, acorn@^5.2.1, acorn@^5.6.2:
   version "5.7.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
   integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
 
+acorn@^6.0.2:
+  version "6.0.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.0.4.tgz#77377e7353b72ec5104550aa2d2097a2fd40b754"
+  integrity sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg==
+
 adm-zip@~0.4.3:
-  version "0.4.11"
-  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.11.tgz#2aa54c84c4b01a9d0fb89bb11982a51f13e3d62a"
-  integrity sha512-L8vcjDTCOIJk7wFvmlEUN7AsSb8T+2JrdP7KINBjzr24TJ5Mwj590sLu3BC7zNZowvJWa/JtPmD8eJCzdtDWjA==
+  version "0.4.13"
+  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.13.tgz#597e2f8cc3672151e1307d3e95cddbc75672314a"
+  integrity sha512-fERNJX8sOXfel6qCBCMPvZLzENBEhZTzKqg6vrOW5pvoEaQuJhRU4ndTAh6lHOxn1I6jnz2NHra56ZODM751uw==
 
 after@0.8.2:
   version "0.8.2"
@@ -996,25 +1000,20 @@ agent-base@^4.1.0:
   dependencies:
     es6-promisify "^5.0.0"
 
+ajv-errors@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/ajv-errors/-/ajv-errors-1.0.1.tgz#f35986aceb91afadec4102fbd85014950cefa64d"
+  integrity sha512-DCRfO/4nQ+89p/RK43i8Ezd41EqdGIU4ld7nGF8OQ14oc/we5rEntLCUa7+jrn3nn83BosfwZA0wb4pon2o8iQ==
+
 ajv-keywords@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.2.0.tgz#e86b819c602cf8821ad637413698f1dec021847a"
   integrity sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=
 
-ajv@^5.1.0, ajv@^5.3.0:
-  version "5.5.2"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
-  integrity sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=
-  dependencies:
-    co "^4.6.0"
-    fast-deep-equal "^1.0.0"
-    fast-json-stable-stringify "^2.0.0"
-    json-schema-traverse "^0.3.0"
-
-ajv@^6.1.0, ajv@^6.5.3:
-  version "6.5.4"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.5.4.tgz#247d5274110db653706b550fcc2b797ca28cfc59"
-  integrity sha512-4Wyjt8+t6YszqaXnLDfMmG/8AlO5Zbcsy3ATHncCzjW/NoPzAId8AK6749Ybjmdt+kUY1gP60fCu46oDxPv/mg==
+ajv@^6.1.0, ajv@^6.5.3, ajv@^6.5.5, ajv@^6.6.1:
+  version "6.6.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.6.2.tgz#caceccf474bf3fc3ce3b147443711a24063cc30d"
+  integrity sha512-FBHEW6Jf5TB9MGBgUUA9XHkTbjXYfAUjY43ACMfmdMRHniyoMHjHjzD50OK8LGDWQwp4rWEsIq5kEqq7rvIM1g==
   dependencies:
     fast-deep-equal "^2.0.1"
     fast-json-stable-stringify "^2.0.0"
@@ -1027,11 +1026,11 @@ amdefine@>=0.0.4:
   integrity sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=
 
 ansi-colors@^3.0.0:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.1.tgz#9638047e4213f3428a11944a7d4b31cba0a3ff95"
-  integrity sha512-Xt+zb6nqgvV9SWAVp0EG3lRsHcbq5DDgqjPPz6pwgtj6RKz65zGXMNa82oJfOSBA/to6GmRP7Dr+6o+kbApTzQ==
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.3.tgz#57d35b8686e851e2cc04c403f1c00203976a1813"
+  integrity sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==
 
-ansi-escapes@^1.0.0, ansi-escapes@^1.1.0:
+ansi-escapes@^1.1.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
   integrity sha1-06ioOzGapneTZisT52HHkRQiMG4=
@@ -1051,6 +1050,11 @@ ansi-regex@^3.0.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
   integrity sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=
 
+ansi-regex@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.0.0.tgz#70de791edf021404c3fd615aa89118ae0432e5a9"
+  integrity sha512-iB5Dda8t/UqpPI/IjsejXu5jOGDrzn41wJyljwPH65VCIbk6+1BzFIMJGFwTNrYXT1CrD+B4l19U7awiQ8rk7w==
+
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
@@ -1191,7 +1195,7 @@ arraybuffer.slice@~0.0.7:
   resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
   integrity sha512-wGUIVQXuehL5TCqQun8OW81jGzAWycqzFF8lFp+GOM5BXLYj3bKNsYC4daB7n6XjCqxQA/qgTJ+8ANR3acjrog==
 
-arrify@^1.0.0, arrify@^1.0.1:
+arrify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
   integrity sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=
@@ -1235,9 +1239,14 @@ assign-symbols@^1.0.0:
   integrity sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=
 
 ast-types@0.x.x:
-  version "0.11.6"
-  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.6.tgz#4e2266c2658829aef3b40cc33ad599c4e9eb89ef"
-  integrity sha512-nHiuV14upVGl7MWwFUYbzJ6YlfwWS084CU9EA8HajfYQjMSli5TQi3UTRygGF58LFWVkXxS1rbgRhROEqlQkXg==
+  version "0.11.7"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.11.7.tgz#f318bf44e339db6a320be0009ded64ec1471f46c"
+  integrity sha512-2mP3TwtkY/aTv5X3ZsMpNAbOnyoC/aMJwJSoaELPkHId0nSQgFcnU4dRW3isxiz7+zBexk0ym3WNVjMiQBnJSw==
+
+astral-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
+  integrity sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==
 
 async-each@^1.0.0:
   version "1.0.1"
@@ -1283,7 +1292,7 @@ aws-sign2@~0.7.0:
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
   integrity sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=
 
-aws4@^1.6.0, aws4@^1.8.0:
+aws4@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
@@ -1536,15 +1545,15 @@ bl@^1.0.0:
     readable-stream "^2.3.5"
     safe-buffer "^5.1.1"
 
-blob@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
-  integrity sha1-vPEwUspURj8w+fx+lbmkdjCpSSE=
+blob@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.5.tgz#d680eeef25f8cd91ad533f5b01eed48e64caf683"
+  integrity sha512-gaqbzQPqOoamawKg0LGVd7SzLgXS+JH61oWprSLH+P+abTczqJbhTR8CmJ2u9/bUYNmHTGJx/UEmn6doAvvuig==
 
-bluebird@^3.3.0, bluebird@^3.5.1:
-  version "3.5.2"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.2.tgz#1be0908e054a751754549c270489c1505d4ab15a"
-  integrity sha512-dhHTWMI7kMx5whMQntl7Vr9C6BvV10lFXDAasnqnrMYhXVCzzk6IO9Fo2L75jXHT07WrOngL1WDXOp+yYS91Yg==
+bluebird@^3.3.0, bluebird@^3.5.3:
+  version "3.5.3"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.3.tgz#7d01c6f9616c9a51ab0f8c549a79dfe6ec33efa7"
+  integrity sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw==
 
 bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   version "4.11.8"
@@ -1567,20 +1576,6 @@ body-parser@^1.16.1:
     raw-body "2.3.3"
     type-is "~1.6.16"
 
-boom@4.x.x:
-  version "4.3.1"
-  resolved "https://registry.yarnpkg.com/boom/-/boom-4.3.1.tgz#4f8a3005cb4a7e3889f749030fd25b96e01d2e31"
-  integrity sha1-T4owBctKfjiJ90kDD9JbluAdLjE=
-  dependencies:
-    hoek "4.x.x"
-
-boom@5.x.x:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/boom/-/boom-5.2.0.tgz#5dd9da6ee3a5f302077436290cb717d3f4a54e02"
-  integrity sha512-Z5BTk6ZRe4tXXQlkqftmsAUANpXmuwlsF5Oov8ThoMbQRzdGTA1ngYRW160GexgOgjsFOKJz0LYhoNi+2AMBUw==
-  dependencies:
-    hoek "4.x.x"
-
 brace-expansion@^1.0.0, brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -1690,16 +1685,16 @@ browserify-zlib@^0.2.0:
   dependencies:
     pako "~1.0.5"
 
-browserslist@^4.1.0:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.3.2.tgz#a5479f20fd387357be2d01aefcbbdcaadffb4d75"
-  integrity sha512-wgZJWlYcDvsjRtf8socmAHf1nXq88KrQLB/gMYHGPUc2bzPWsgltSXwPWYHx4Sw0G9E/XGNW5wJDaWlpHRMpjA==
+browserslist@^4.3.4:
+  version "4.3.6"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.3.6.tgz#0f9d9081afc66b36f477c6bdf3813f784f42396a"
+  integrity sha512-kMGKs4BTzRWviZ8yru18xBpx+CyHG9eqgRbj9XbE3IMgtczf4aiA0Y1YCpVdvUieKGZ03kolSPXqTcscBCb9qw==
   dependencies:
-    caniuse-lite "^1.0.30000898"
-    electron-to-chromium "^1.3.80"
-    node-releases "^1.0.0-alpha.14"
+    caniuse-lite "^1.0.30000921"
+    electron-to-chromium "^1.3.92"
+    node-releases "^1.1.1"
 
-buble@^0.19.3, buble@^0.19.4:
+buble@^0.19.3, buble@^0.19.6:
   version "0.19.6"
   resolved "https://registry.yarnpkg.com/buble/-/buble-0.19.6.tgz#915909b6bd5b11ee03b1c885ec914a8b974d34d3"
   integrity sha512-9kViM6nJA1Q548Jrd06x0geh+BG2ru2+RMDkIHHgJY/8AcyCs34lTHwra9BX7YdPrZXd5aarkpr/SY8bmPgPdg==
@@ -1766,10 +1761,10 @@ builtin-modules@^1.0.0:
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
   integrity sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=
 
-builtin-modules@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-2.0.0.tgz#60b7ef5ae6546bd7deefa74b08b62a43a232648e"
-  integrity sha512-3U5kUA5VPsRUA3nofm/BXX7GVHKfxz0hOBAPxXrIvHzlDRkQVqEn6yi8QJegxl4LzOHLdvb7XF5dVawa/VVYBg==
+builtin-modules@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-3.0.0.tgz#1e587d44b006620d90286cc7a9238bbc6129cab1"
+  integrity sha512-hMIeU4K2ilbXV6Uv93ZZ0Avg/M91RaKXucQ+4me2Do1txxBDyDZWCBa5bJSLqoNTRpXTLwEzIk1KmloenDDjhg==
 
 builtin-status-codes@^3.0.0:
   version "3.0.0"
@@ -1781,23 +1776,24 @@ bytes@3.0.0:
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
   integrity sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=
 
-cacache@^10.0.4:
-  version "10.0.4"
-  resolved "https://registry.yarnpkg.com/cacache/-/cacache-10.0.4.tgz#6452367999eff9d4188aefd9a14e9d7c6a263460"
-  integrity sha512-Dph0MzuH+rTQzGPNT9fAnrPmMmjKfST6trxJeK7NQuHRaVw24VzPRWTmg9MpcwOVQZO0E1FBICUlFeNaKPIfHA==
-  dependencies:
-    bluebird "^3.5.1"
-    chownr "^1.0.1"
-    glob "^7.1.2"
-    graceful-fs "^4.1.11"
-    lru-cache "^4.1.1"
-    mississippi "^2.0.0"
+cacache@^11.0.2:
+  version "11.3.2"
+  resolved "https://registry.yarnpkg.com/cacache/-/cacache-11.3.2.tgz#2d81e308e3d258ca38125b676b98b2ac9ce69bfa"
+  integrity sha512-E0zP4EPGDOaT2chM08Als91eYnf8Z+eH1awwwVsngUmgppfM5jjJ8l3z5vO5p5w/I3LsiXawb1sW0VY65pQABg==
+  dependencies:
+    bluebird "^3.5.3"
+    chownr "^1.1.1"
+    figgy-pudding "^3.5.1"
+    glob "^7.1.3"
+    graceful-fs "^4.1.15"
+    lru-cache "^5.1.1"
+    mississippi "^3.0.0"
     mkdirp "^0.5.1"
     move-concurrently "^1.0.1"
     promise-inflight "^1.0.1"
     rimraf "^2.6.2"
-    ssri "^5.2.4"
-    unique-filename "^1.1.0"
+    ssri "^6.0.1"
+    unique-filename "^1.1.1"
     y18n "^4.0.0"
 
 cache-base@^1.0.1:
@@ -1822,6 +1818,13 @@ cachedir@^1.1.0:
   dependencies:
     os-homedir "^1.0.1"
 
+caller-callsite@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-callsite/-/caller-callsite-2.0.0.tgz#847e0fce0a223750a9a027c54b33731ad3154134"
+  integrity sha1-hH4PzgoiN1CpoCfFSzNzGtMVQTQ=
+  dependencies:
+    callsites "^2.0.0"
+
 caller-path@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
@@ -1829,6 +1832,13 @@ caller-path@^0.1.0:
   dependencies:
     callsites "^0.2.0"
 
+caller-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-2.0.0.tgz#468f83044e369ab2010fac5f06ceee15bb2cb1f4"
+  integrity sha1-Ro+DBE42mrIBD6xfBs7uFbsssfQ=
+  dependencies:
+    caller-callsite "^2.0.0"
+
 callsite@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
@@ -1839,6 +1849,11 @@ callsites@^0.2.0:
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
   integrity sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=
 
+callsites@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
+  integrity sha1-BuuE8A7qQT2oav/vrL/7Ngk7PFA=
+
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
@@ -1866,10 +1881,10 @@ camelcase@^4.1.0:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
   integrity sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=
 
-caniuse-lite@^1.0.30000898:
-  version "1.0.30000898"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000898.tgz#651306e690ca83caca5814da5afa3eb4de0f86c2"
-  integrity sha512-ytlTZqO4hYe4rNAJhMynUAIUI33jsP2Bb1two/9OVC39wZjPZ8exIO0eCLw5mqAtegOGiGF0kkTWTn3B02L+mw==
+caniuse-lite@^1.0.30000921:
+  version "1.0.30000923"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000923.tgz#148f9bda508024b5ce957b463ae2e8302b451bb2"
+  integrity sha512-j5ur7eeluOFjjPUkydtXP4KFAsmH3XaQNch5tvWSO+dLHYt5PE+VgJZLWtbVOodfWij6m6zas28T4gB/cLYq1w==
 
 caseless@~0.12.0:
   version "0.12.0"
@@ -1934,7 +1949,7 @@ chokidar@^2.0.2, chokidar@^2.0.3:
   optionalDependencies:
     fsevents "^1.2.2"
 
-chownr@^1.0.1:
+chownr@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
   integrity sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g==
@@ -1946,16 +1961,16 @@ chrome-trace-event@^1.0.0:
   dependencies:
     tslib "^1.9.0"
 
-chromedriver@^2.30.1:
-  version "2.43.0"
-  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-2.43.0.tgz#435d3e582e8383204827c1ffd8be80683da20330"
-  integrity sha512-W0aEk0ibNs7S4PA/vtH1xYcuAXc2474a1XjA9ERE1ZUSFo4NwJMtR7G8w+XP8mkaaxDYSOtiuDUAGW23cT6Gjg==
+chromedriver@^2.45.0:
+  version "2.45.0"
+  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-2.45.0.tgz#8c1b158adbbd3e0ca3f7af19d459082245554378"
+  integrity sha512-Qwmcr+2mU3INeR6mVsQ8gO00vZpL8ZeTJLclX44C0dcs88jrSDgckPqbG+qkVX+m2L/aOPnF0lYgPdOiOiLt5w==
   dependencies:
     del "^3.0.0"
     extract-zip "^1.6.7"
-    kew "^0.7.0"
     mkdirp "^0.5.1"
-    request "^2.87.0"
+    request "^2.88.0"
+    tcp-port-used "^1.0.1"
 
 ci-info@^1.5.0:
   version "1.6.0"
@@ -1990,14 +2005,14 @@ class-utils@^0.3.5:
     isobject "^3.0.0"
     static-extend "^0.1.1"
 
-cli-cursor@^1.0.1, cli-cursor@^1.0.2:
+cli-cursor@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
   integrity sha1-ZNo/fValRBLll5S9Ytw1KV6PKYc=
   dependencies:
     restore-cursor "^1.0.1"
 
-cli-cursor@^2.1.0:
+cli-cursor@^2.0.0, cli-cursor@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
   integrity sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=
@@ -2017,11 +2032,6 @@ cli-width@^2.0.0:
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
   integrity sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=
 
-co@^4.6.0:
-  version "4.6.0"
-  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
-  integrity sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=
-
 co@~3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/co/-/co-3.0.6.tgz#1445f226c5eb956138e68c9ac30167ea7d2e6bda"
@@ -2069,9 +2079,9 @@ colors@1.0.3:
   integrity sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=
 
 colors@^1.1.0:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/colors/-/colors-1.3.2.tgz#2df8ff573dfbf255af562f8ce7181d6b971a359b"
-  integrity sha512-rhP0JSBGYvpcNQj4s5AdShMeE5ahMop96cTeDl/v9qQQm2fYClE2QXZRi8wLzc+GmXSxdIqqbOIAhyObEXDbfQ==
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.3.3.tgz#39e005d546afe01e01f9c4ca8fa50f686a01205d"
+  integrity sha512-mmGt/1pZqYRjMxB1axhTo16/snVZ5krrKkcmMeVKxzECMMXoCgnvTPp10QgHfcbQZw8Dq2jMNG6je4JlWU0gWg==
 
 combine-lists@^1.0.0:
   version "1.0.1"
@@ -2080,7 +2090,7 @@ combine-lists@^1.0.0:
   dependencies:
     lodash "^4.5.0"
 
-combined-stream@^1.0.6, combined-stream@~1.0.5, combined-stream@~1.0.6:
+combined-stream@^1.0.6, combined-stream@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.7.tgz#2d1d24317afb8abe95d6d2c0b07b57813539d828"
   integrity sha512-brWl9y6vOB1xYPZcpZde3N9zDByXTosAeMDo4p1wzo6UMOX4vumB+TP1RZ76sfE6Md68Q0NJSrE/gbezd4Ul+w==
@@ -2099,11 +2109,6 @@ commander@^2.14.1, commander@^2.9.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
   integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
 
-commander@~2.13.0:
-  version "2.13.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.13.0.tgz#6964bca67685df7c1f1430c584f07d7597885b9c"
-  integrity sha512-MVuS359B+YzaWqjCL/c+22gfryv+mCBPHAv3zyVI2GN8EY6IRP8VwtasXn8jyyhvvq84R4ImN1OKRtcbIasjYA==
-
 commander@~2.17.1:
   version "2.17.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
@@ -2394,9 +2399,9 @@ copy-descriptor@^0.1.0:
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
 core-js@^2.2.0, core-js@^2.4.0, core-js@^2.5.7:
-  version "2.5.7"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.7.tgz#f972608ff0cead68b841a16a932d0b183791814e"
-  integrity sha512-RszJCAxg/PP6uzXVXL6BsxSXx/B05oJAQ2vkJRjyjrEcNVycaqOmNb5OTxZPE3xa5gwZduqza6L9JOCenh/Ecw==
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.1.tgz#87416ae817de957a3f249b3b5ca475d4aaed6042"
+  integrity sha512-L72mmmEayPJBejKIWe2pYtGis5r0tQ5NaJekdhyXgeMQTpJoBsH0NL4ElY2LfSoV15xeQWKQ+XTTOZdyero5Xg==
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
@@ -2409,10 +2414,11 @@ corser@~2.0.0:
   integrity sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c=
 
 cosmiconfig@^5.0.2:
-  version "5.0.6"
-  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.6.tgz#dca6cf680a0bd03589aff684700858c81abeeb39"
-  integrity sha512-6DWfizHriCrFWURP1/qyhsiFvYdlJzbCzmtFWh744+KyWsJo5+kPzUZZaMRSSItoYc0pxFX7gEO7ZC1/gN/7AQ==
+  version "5.0.7"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.7.tgz#39826b292ee0d78eda137dfa3173bd1c21a43b04"
+  integrity sha512-PcLqxTKiDmNT6pSpy4N6KtuPwb53W+2tzNvwOZw0WH9N6O0vLIBq0x8aj8Oj75ere4YcGi48bDFCL+3fRJdlNA==
   dependencies:
+    import-fresh "^2.0.0"
     is-directory "^0.3.1"
     js-yaml "^3.9.0"
     parse-json "^4.0.0"
@@ -2483,13 +2489,6 @@ cross-spawn@^6.0.5:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-cryptiles@3.x.x:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-3.1.2.tgz#a89fbb220f5ce25ec56e8c4aa8a4fd7b5b0d29fe"
-  integrity sha1-qJ+7Ig9c4l7FboxKqKT9e1sNKf4=
-  dependencies:
-    boom "5.x.x"
-
 crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
@@ -2577,9 +2576,9 @@ data-uri-to-buffer@1:
   integrity sha512-vKQ9DTQPN1FLYiiEEOQ6IBGFqvjCa5rSK3cWMy/Nespm5d/x3dGFT9UBZnkLxCwua/IXBi2TYnwTEpsOvhC4UQ==
 
 date-fns@^1.27.2:
-  version "1.29.0"
-  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.29.0.tgz#12e609cdcb935127311d04d33334e2960a2a54e6"
-  integrity sha512-lbTXWZ6M20cWH8N9S6afb0SBm6tMk+uUg6z3MqHPKE9atmsY3kJkTm8vKe93izJ2B2+q5MV990sM2CHgtAZaOw==
+  version "1.30.1"
+  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.30.1.tgz#2e71bf0b119153dbb4cc4e88d9ea5acfb50dc05c"
+  integrity sha512-hBSVCvSmWC+QypYObzwGOd9wqdDpOt+0wl0KbU+R+uuZBS1jN8VsD1ss3irQDknRj5NvxiTF6oj/nDRnN/UQNw==
 
 date-format@^1.2.0:
   version "1.2.0"
@@ -2623,6 +2622,13 @@ debug@2.2.0:
   dependencies:
     ms "0.7.1"
 
+debug@4.1.0, debug@^4.0.1, debug@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.0.tgz#373687bffa678b38b1cd91f861b63850035ddc87"
+  integrity sha512-heNPJUJIqC+xB6ayLAMHaIrmN9HKa7aQO8MGqKpvCA+uJYVcvR6l5kgdrhRuwPFHU7P5/A1w0BjByPHwpfTDKg==
+  dependencies:
+    ms "^2.1.1"
+
 debug@=3.1.0, debug@~3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
@@ -2637,13 +2643,6 @@ debug@^3.1.0:
   dependencies:
     ms "^2.1.1"
 
-debug@^4.0.1:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.0.tgz#373687bffa678b38b1cd91f861b63850035ddc87"
-  integrity sha512-heNPJUJIqC+xB6ayLAMHaIrmN9HKa7aQO8MGqKpvCA+uJYVcvR6l5kgdrhRuwPFHU7P5/A1w0BjByPHwpfTDKg==
-  dependencies:
-    ms "^2.1.1"
-
 decamelize-keys@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
@@ -2684,7 +2683,7 @@ deep-extend@^0.6.0:
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
   integrity sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==
 
-deep-is@~0.1.3:
+deep-is@^0.1.3, deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
   integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
@@ -2727,19 +2726,6 @@ degenerator@~1.0.2:
     escodegen "1.x.x"
     esprima "3.x.x"
 
-del@^2.0.2:
-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
-  integrity sha1-wSyYHQZ4RshLyvhiz/kw2Qf/0ag=
-  dependencies:
-    globby "^5.0.0"
-    is-path-cwd "^1.0.0"
-    is-path-in-cwd "^1.0.0"
-    object-assign "^4.0.1"
-    pify "^2.0.0"
-    pinkie-promise "^2.0.0"
-    rimraf "^2.2.8"
-
 del@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/del/-/del-3.0.0.tgz#53ecf699ffcbcb39637691ab13baf160819766e5"
@@ -2880,10 +2866,10 @@ ejs@2.5.7:
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.7.tgz#cc872c168880ae3c7189762fd5ffc00896c9518a"
   integrity sha1-zIcsFoiArjxxiXYv1f/ACJbJUYo=
 
-electron-to-chromium@^1.3.80:
-  version "1.3.81"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.81.tgz#32af69206ef78973b6a6771b0c8450c2ce253913"
-  integrity sha512-+rym2xtzwPWmoi8AYRrCdW65QOT0vfUHjZb5mjgh0VLyj31pGM3CpP3znKhQNBzQaWujR/KEl/mfC2lnKYgADA==
+electron-to-chromium@^1.3.92:
+  version "1.3.96"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.96.tgz#25770ec99b8b07706dedf3a5f43fa50cb54c4f9a"
+  integrity sha512-ZUXBUyGLeoJxp4Nt6G/GjBRLnyz8IKQGexZ2ndWaoegThgMGFO1tdDYID5gBV32/1S83osjJHyfzvanE/8HY4Q==
 
 elegant-spinner@^1.0.1:
   version "1.0.1"
@@ -2945,20 +2931,20 @@ engine.io-client@~3.2.0:
     yeast "0.1.2"
 
 engine.io-parser@~2.1.0, engine.io-parser@~2.1.1:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.1.2.tgz#4c0f4cff79aaeecbbdcfdea66a823c6085409196"
-  integrity sha512-dInLFzr80RijZ1rGpx1+56/uFoH7/7InhH3kZt+Ms6hT8tNx3NGW/WNSA/f8As1WkOfkuyb3tnRyuXGxusclMw==
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.1.3.tgz#757ab970fbf2dfb32c7b74b033216d5739ef79a6"
+  integrity sha512-6HXPre2O4Houl7c4g7Ic/XzPnHBvaEmN90vtRO9uLmwtRqQmTOw0QMevL1TOfL2Cpu1VzsaTmMotQgMdkzGkVA==
   dependencies:
     after "0.8.2"
     arraybuffer.slice "~0.0.7"
     base64-arraybuffer "0.1.5"
-    blob "0.0.4"
+    blob "0.0.5"
     has-binary2 "~1.0.2"
 
 engine.io@~3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.2.0.tgz#54332506f42f2edc71690d2f2a42349359f3bf7d"
-  integrity sha512-mRbgmAtQ4GAlKwuPnnAvXXwdPhEx+jkc0OBCLrXuD/CRvwNK3AxRSnqK4FSqmAMRRHryVJP8TopOvmEaA64fKw==
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.2.1.tgz#b60281c35484a70ee0351ea0ebff83ec8c9522a2"
+  integrity sha512-+VlKzHzMhaU+GsCIg4AoXF1UdDFjHHwMmMKqMJNDNLlUlejz58FCy4LBqB2YVJskHGYl06BatYWKP2TVdVXE5w==
   dependencies:
     accepts "~1.3.4"
     base64id "1.0.0"
@@ -3100,9 +3086,9 @@ eslint-visitor-keys@^1.0.0:
   integrity sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==
 
 eslint@^5.7.0:
-  version "5.7.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.7.0.tgz#55c326d6fb2ad45fcbd0ce17c3846f025d1d819c"
-  integrity sha512-zYCeFQahsxffGl87U2aJ7DPyH8CbWgxBC213Y8+TCanhUTf2gEvfq3EKpHmEcozTLyPmGe9LZdMAwC/CpJBM5A==
+  version "5.10.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.10.0.tgz#24adcbe92bf5eb1fc2d2f2b1eebe0c5e0713903a"
+  integrity sha512-HpqzC+BHULKlnPwWae9MaVZ5AXJKpkxCVXQHrFaRw3hbDj26V/9ArYM4Rr/SQ8pi6qUPLXSSXC4RBJlyq2Z2OQ==
   dependencies:
     "@babel/code-frame" "^7.0.0"
     ajv "^6.5.3"
@@ -3113,7 +3099,7 @@ eslint@^5.7.0:
     eslint-scope "^4.0.0"
     eslint-utils "^1.3.1"
     eslint-visitor-keys "^1.0.0"
-    espree "^4.0.0"
+    espree "^5.0.0"
     esquery "^1.0.1"
     esutils "^2.0.2"
     file-entry-cache "^2.0.0"
@@ -3123,7 +3109,6 @@ eslint@^5.7.0:
     ignore "^4.0.6"
     imurmurhash "^0.1.4"
     inquirer "^6.1.0"
-    is-resolvable "^1.1.0"
     js-yaml "^3.12.0"
     json-stable-stringify-without-jsonify "^1.0.1"
     levn "^0.3.0"
@@ -3143,13 +3128,14 @@ eslint@^5.7.0:
     table "^5.0.2"
     text-table "^0.2.0"
 
-espree@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/espree/-/espree-4.0.0.tgz#253998f20a0f82db5d866385799d912a83a36634"
-  integrity sha512-kapdTCt1bjmspxStVKX6huolXVV5ZfyZguY1lcfhVVZstce3bqxH9mcLzNn3/mlgW6wQ732+0fuG9v7h0ZQoKg==
+espree@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-5.0.0.tgz#fc7f984b62b36a0f543b13fb9cd7b9f4a7f5b65c"
+  integrity sha512-1MpUfwsdS9MMoN7ZXqAr9e9UKdVHDcvrJpyx7mm1WuQlx/ygErEQBzgi5Nh5qBHIoYweprhtMkTCb9GhcAIcsA==
   dependencies:
-    acorn "^5.6.0"
-    acorn-jsx "^4.1.1"
+    acorn "^6.0.2"
+    acorn-jsx "^5.0.0"
+    eslint-visitor-keys "^1.0.0"
 
 esprima@2.7.x, esprima@^2.7.1:
   version "2.7.3"
@@ -3325,7 +3311,7 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
     assign-symbols "^1.0.0"
     is-extendable "^1.0.1"
 
-extend@3, extend@^3.0.0, extend@~3.0.0, extend@~3.0.1, extend@~3.0.2:
+extend@3, extend@^3.0.0, extend@~3.0.0, extend@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
   integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
@@ -3398,11 +3384,6 @@ extsprintf@^1.2.0:
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
   integrity sha1-4mifjzVvrWLMplo6kcXfX5VRaS8=
 
-fast-deep-equal@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
-  integrity sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=
-
 fast-deep-equal@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz#7b05218ddf9667bf7f370bf7fdb2cb15fdd0aa49"
@@ -3425,6 +3406,11 @@ fd-slicer@~1.0.1:
   dependencies:
     pend "~1.2.0"
 
+figgy-pudding@^3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.1.tgz#862470112901c727a0e495a80744bd5baa1d6790"
+  integrity sha512-vNKxJHTEKNThjfrdJwHc7brvM6eVevuO5nTj6ez8ZQ1qbXTvGthucRF7S4vf2cr71QVnT70V34v0S1DyQsti0w==
+
 figures@^1.3.5, figures@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
@@ -3509,6 +3495,15 @@ find-cache-dir@^1.0.0:
     make-dir "^1.0.0"
     pkg-dir "^2.0.0"
 
+find-cache-dir@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-2.0.0.tgz#4c1faed59f45184530fb9d7fa123a4d04a98472d"
+  integrity sha512-LDUY6V1Xs5eFskUVYtIwatojt6+9xC9Chnlk/jYOOvn3FAFfSaWddxahDGyNHh0b2dMXa6YW2m0tk8TdVaXHlA==
+  dependencies:
+    commondir "^1.0.1"
+    make-dir "^1.0.0"
+    pkg-dir "^3.0.0"
+
 find-node-modules@1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/find-node-modules/-/find-node-modules-1.0.4.tgz#b6deb3cccb699c87037677bcede2c5f5862b2550"
@@ -3560,15 +3555,20 @@ findup-sync@0.4.2:
     resolve-dir "^0.1.0"
 
 flat-cache@^1.2.1:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
-  integrity sha1-0wMLMrOBVPTjt+nHCfSQ9++XxIE=
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.4.tgz#2c2ef77525cc2929007dfffa1dd314aa9c9dee6f"
+  integrity sha512-VwyB3Lkgacfik2vhqR4uv2rvebqmDvFu4jlN/C1RzWoJEo8I7z4Q404oiqYCkq41mni8EzQnm95emU9seckwtg==
   dependencies:
     circular-json "^0.3.1"
-    del "^2.0.2"
     graceful-fs "^4.1.2"
+    rimraf "~2.6.2"
     write "^0.2.1"
 
+flatted@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.0.tgz#55122b6536ea496b4b44893ee2608141d10d9916"
+  integrity sha512-R+H8IZclI8AAkSBRQJLVOsxwAoHd6WC40b4QTNWIjzAa6BXOBfQcM587MXDTVPeYaopFNWHUFLx7eNmHDSxMWg==
+
 flow-bin@^0.61.0:
   version "0.61.0"
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.61.0.tgz#d0473a8c35dbbf4de573823f4932124397d32d35"
@@ -3591,9 +3591,9 @@ flush-write-stream@^1.0.0:
     readable-stream "^2.0.4"
 
 follow-redirects@^1.0.0:
-  version "1.5.9"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.9.tgz#c9ed9d748b814a39535716e531b9196a845d89c6"
-  integrity sha512-Bh65EZI/RU8nx0wbYF9shkFZlqLP+6WT/5FnA3cE/djNSuKNHJEinGGZgu/cQEkeeb2GdFOgenAmn8qaqYke2w==
+  version "1.5.10"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
+  integrity sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==
   dependencies:
     debug "=3.1.0"
 
@@ -3614,7 +3614,7 @@ forever-agent@~0.6.1:
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
   integrity sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=
 
-form-data@~2.3.1, form-data@~2.3.2:
+form-data@~2.3.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"
   integrity sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==
@@ -3868,7 +3868,7 @@ glob@^5.0.15:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.1, glob@^7.1.2:
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3:
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
   integrity sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==
@@ -3899,27 +3899,15 @@ global-prefix@^0.1.4:
     which "^1.2.12"
 
 globals@^11.1.0, globals@^11.7.0:
-  version "11.8.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-11.8.0.tgz#c1ef45ee9bed6badf0663c5cb90e8d1adec1321d"
-  integrity sha512-io6LkyPVuzCHBSQV9fmOwxZkUk6nIaGmxheLDgmuFv89j0fm2aqDbIXKAGfzCMHqz3HLF2Zf8WSG6VqMh2qFmA==
+  version "11.9.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.9.0.tgz#bde236808e987f290768a93d065060d78e6ab249"
+  integrity sha512-5cJVtyXWH8PiJPVLZzzoIizXx944O4OmRro5MWKx5fT4MgcN7OfaMutPeaTdJCCURwbWdhhcCWcKIffPnmTzBg==
 
 globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
   integrity sha512-S0nG3CLEQiY/ILxqtztTWH/3iRRdyBLw6KMDxnKMchrtbj2OFmehVh0WUCfW3DUrIgx/qFrJPICrq4Z4sTR9UQ==
 
-globby@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
-  integrity sha1-69hGZ8oNuzMLmbz8aOrCvFQ3Dg0=
-  dependencies:
-    array-union "^1.0.1"
-    arrify "^1.0.0"
-    glob "^7.0.3"
-    object-assign "^4.0.1"
-    pify "^2.0.0"
-    pinkie-promise "^2.0.0"
-
 globby@^6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
@@ -3931,10 +3919,10 @@ globby@^6.1.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
-  version "4.1.11"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
-  integrity sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg=
+graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
+  version "4.1.15"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
+  integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
 
 "graceful-readlink@>= 1.0.0":
   version "1.0.1"
@@ -3962,20 +3950,12 @@ har-schema@^2.0.0:
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
   integrity sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI=
 
-har-validator@~5.0.3:
-  version "5.0.3"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.0.3.tgz#ba402c266194f15956ef15e0fcf242993f6a7dfd"
-  integrity sha1-ukAsJmGU8VlW7xXg/PJCmT9qff0=
-  dependencies:
-    ajv "^5.1.0"
-    har-schema "^2.0.0"
-
 har-validator@~5.1.0:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.1.0.tgz#44657f5688a22cfd4b72486e81b3a3fb11742c29"
-  integrity sha512-+qnmNjI4OfH2ipQ9VQOw23bBd/ibtfbVdK2fYbY4acTDqKTW/YDp9McimZdDbG8iV9fZizUqQMD5xvriB146TA==
+  version "5.1.3"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.1.3.tgz#1ef89ebd3e4996557675eed9893110dc350fa080"
+  integrity sha512-sNvOCzEQNr/qrvJgc3UG/kD4QtlHycrzwS+6mfTrrSq97BvaYcPZZI1ZSqGSPR73Cxn4LKTD4PttRwfU7jWq5g==
   dependencies:
-    ajv "^5.3.0"
+    ajv "^6.5.5"
     har-schema "^2.0.0"
 
 has-ansi@^2.0.0:
@@ -4069,9 +4049,9 @@ hash-sum@^1.0.2:
   integrity sha1-M7QHd3VMZDJXPBIMw4CLvRDUfwQ=
 
 hash.js@^1.0.0, hash.js@^1.0.3:
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.5.tgz#e38ab4b85dfb1e0c40fe9265c0e9b54854c23812"
-  integrity sha512-eWI5HG9Np+eHV1KQhisXWwM+4EPPYe5dFX1UZZH7k/E3JzDEazVH+VGlZi6R94ZqImq+A3D1mCEtrFIfg/E7sA==
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.7.tgz#0babca538e8d4ee4a0f8988d68866537a003cf42"
+  integrity sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==
   dependencies:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.1"
@@ -4084,16 +4064,6 @@ hasha@^2.2.0:
     is-stream "^1.0.1"
     pinkie-promise "^2.0.0"
 
-hawk@~6.0.2:
-  version "6.0.2"
-  resolved "https://registry.yarnpkg.com/hawk/-/hawk-6.0.2.tgz#af4d914eb065f9b5ce4d9d11c1cb2126eecc3038"
-  integrity sha512-miowhl2+U7Qle4vdLqDdPt9m09K6yZhkLDTWGoUiUzrQCn+mHHSmfJgAyGaLRZbPmTqfFFjRV1QWCW0VWUJBbQ==
-  dependencies:
-    boom "4.x.x"
-    cryptiles "3.x.x"
-    hoek "4.x.x"
-    sntp "2.x.x"
-
 he@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
@@ -4108,11 +4078,6 @@ hmac-drbg@^1.0.0:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.1"
 
-hoek@4.x.x:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/hoek/-/hoek-4.2.1.tgz#9634502aa12c445dd5a7c5734b572bb8738aacbb"
-  integrity sha512-QLg82fGkfnJ/4iy1xZ81/9SIJiq1NGFUMGs6ParyjBZr6jW2Ufj/snDqTHixNlHdPNwN2RLVD0Pi3igeK9+JfA==
-
 home-or-tmp@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-3.0.0.tgz#57a8fe24cf33cdd524860a15821ddc25c86671fb"
@@ -4239,6 +4204,14 @@ ignore@^4.0.6:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
   integrity sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==
 
+import-fresh@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-2.0.0.tgz#d81355c15612d386c61f9ddd3922d4304822a546"
+  integrity sha1-2BNVwVYS04bGH53dOSLUMEgipUY=
+  dependencies:
+    caller-path "^2.0.0"
+    resolve-from "^3.0.0"
+
 imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
@@ -4324,9 +4297,9 @@ inquirer@3.0.6:
     through "^2.3.6"
 
 inquirer@^6.1.0:
-  version "6.2.0"
-  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-6.2.0.tgz#51adcd776f661369dc1e894859c2560a224abdd8"
-  integrity sha512-QIEQG4YyQ2UYZGDC4srMZ7BjHOmNk1lR2JQj5UknBapklm6WHA+VVH7N+sUdX3A7NeCfGF8o4X1S3Ao7nAcIeg==
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-6.2.1.tgz#9943fc4882161bdb0b0c9276769c75b32dbfcd52"
+  integrity sha512-088kl3DRT2dLU5riVMKKr1DlImd6X7smDhpXUCkJDCKvTEJeRiXh0G132HG9u5a+6Ylw9plFRY7RuTnwohYSpg==
   dependencies:
     ansi-escapes "^3.0.0"
     chalk "^2.0.0"
@@ -4339,7 +4312,7 @@ inquirer@^6.1.0:
     run-async "^2.2.0"
     rxjs "^6.1.0"
     string-width "^2.1.0"
-    strip-ansi "^4.0.0"
+    strip-ansi "^5.0.0"
     through "^2.3.6"
 
 interpret@^1.0.0:
@@ -4354,6 +4327,11 @@ invariant@^2.2.0, invariant@^2.2.2:
   dependencies:
     loose-envify "^1.0.0"
 
+ip-regex@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/ip-regex/-/ip-regex-2.1.0.tgz#fa78bf5d2e6913c911ce9f819ee5146bb6d844e9"
+  integrity sha1-+ni/XS5pE8kRzp+BnuUUa7bYROk=
+
 ip@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.0.1.tgz#c7e356cdea225ae71b36d70f2e71a92ba4e42590"
@@ -4629,11 +4607,6 @@ is-regexp@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-regexp/-/is-regexp-1.0.0.tgz#fd2d883545c46bac5a633e7b9a09e87fa2cb5069"
   integrity sha1-/S2INUXEa6xaYz57mgnof6LLUGk=
 
-is-resolvable@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
-  integrity sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==
-
 is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
@@ -4663,6 +4636,11 @@ is-typedarray@~1.0.0:
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
   integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
 
+is-url@^1.2.2:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/is-url/-/is-url-1.2.4.tgz#04a4df46d28c4cff3d73d01ff06abeb318a1aa52"
+  integrity sha512-ITvGim8FhRiYe4IQ5uHSkj7pVaPDrCTkNd3yq3cV7iZAcJdHTUMPMEHcqSOy9xZ9qFenQCvi+2wjH9a1nXqHww==
+
 is-utf8@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
@@ -4678,6 +4656,15 @@ is-windows@^1.0.2:
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
   integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
 
+is2@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/is2/-/is2-2.0.1.tgz#8ac355644840921ce435d94f05d3a94634d3481a"
+  integrity sha512-+WaJvnaA7aJySz2q/8sLjMb2Mw14KTplHmSwcSpZ/fWJPkUmqw3YTzSWbPJ7OAwRvdYTWF2Wg+yYJ1AdP5Z8CA==
+  dependencies:
+    deep-is "^0.1.3"
+    ip-regex "^2.1.0"
+    is-url "^1.2.2"
+
 isarray@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
@@ -4818,9 +4805,9 @@ jsbn@~0.1.0:
   integrity sha1-peZUwuWi3rXyAdls77yoDA7y9RM=
 
 jsesc@^2.5.1:
-  version "2.5.1"
-  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.1.tgz#e421a2a8e20d6b0819df28908f782526b96dd1fe"
-  integrity sha1-5CGiqOINawgZ3yiQj3glJrlt0f4=
+  version "2.5.2"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-2.5.2.tgz#80564d2e483dacf6e8ef209650a67df3f0c283a4"
+  integrity sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==
 
 jsesc@~0.5.0:
   version "0.5.0"
@@ -4832,11 +4819,6 @@ json-parse-better-errors@^1.0.1, json-parse-better-errors@^1.0.2:
   resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
   integrity sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==
 
-json-schema-traverse@^0.3.0:
-  version "0.3.1"
-  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
-  integrity sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=
-
 json-schema-traverse@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
@@ -4867,6 +4849,13 @@ json5@^0.5.0:
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
   integrity sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=
 
+json5@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-2.1.0.tgz#e7a0c62c48285c628d20a10b85c89bb807c32850"
+  integrity sha512-8Mh9h6xViijj36g7Dxi+Y4S6hNGV96vcJZr/SrlHh1LR/pEn/8j/+qIBbs44YKl69Lrfctp4QD+AdWLTMqEZAQ==
+  dependencies:
+    minimist "^1.2.0"
+
 jsonfile@^2.1.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
@@ -4958,20 +4947,19 @@ karma-sourcemap-loader@^0.3.7:
     graceful-fs "^4.1.2"
 
 karma-webpack@^4.0.0-rc.2:
-  version "4.0.0-rc.2"
-  resolved "https://registry.yarnpkg.com/karma-webpack/-/karma-webpack-4.0.0-rc.2.tgz#4c194e94789842af7f0ffa0de77ee7715739c7c1"
-  integrity sha512-Wuiq/xFBsbJMsHhYy5SYXxSp7Q0b8uzAG8+Siuo56ntoi5GluPE5LK3Mzl2UtD4k1leFwL6IeIE6Q+tk4F6k9Q==
+  version "4.0.0-rc.5"
+  resolved "https://registry.yarnpkg.com/karma-webpack/-/karma-webpack-4.0.0-rc.5.tgz#7282945c9af56d9fc6e0bb053df9afc73dae1b15"
+  integrity sha512-JCFLWIpX1Yx/pX086/2K+c1QdsPQI3K4HVcCo4QzYPWvu7rHOHMV2d3YYVMqL1mZd7iqFlcU8vBO8xKH4CpTyg==
   dependencies:
     async "^2.0.0"
     loader-utils "^1.1.0"
-    lodash "^4.17.10"
     source-map "^0.5.6"
     webpack-dev-middleware "^3.2.0"
 
 karma@^3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/karma/-/karma-3.1.1.tgz#94c8edd20fb9597ccde343326da009737fb0423a"
-  integrity sha512-NetT3wPCQMNB36uiL9LLyhrOt8SQwrEKt0xD3+KpTCfm0VxVyUJdPL5oTq2Ic5ouemgL/Iz4wqXEbF3zea9kQQ==
+  version "3.1.4"
+  resolved "https://registry.yarnpkg.com/karma/-/karma-3.1.4.tgz#3890ca9722b10d1d14b726e1335931455788499e"
+  integrity sha512-31Vo8Qr5glN+dZEVIpnPCxEGleqE0EY6CtC2X9TagRV3rRQ3SNrvfhddICkJgUK3AgqpeKSZau03QumTGhGoSw==
   dependencies:
     bluebird "^3.3.0"
     body-parser "^1.16.1"
@@ -4983,11 +4971,12 @@ karma@^3.1.1:
     di "^0.0.1"
     dom-serialize "^2.2.0"
     expand-braces "^0.1.1"
+    flatted "^2.0.0"
     glob "^7.1.1"
     graceful-fs "^4.1.2"
     http-proxy "^1.13.0"
     isbinaryfile "^3.0.0"
-    lodash "^4.17.4"
+    lodash "^4.17.5"
     log4js "^3.0.0"
     mime "^2.3.1"
     minimatch "^3.0.2"
@@ -4999,7 +4988,7 @@ karma@^3.1.1:
     socket.io "2.1.1"
     source-map "^0.6.1"
     tmp "0.0.33"
-    useragent "2.2.1"
+    useragent "2.3.0"
 
 kew@^0.7.0:
   version "0.7.0"
@@ -5090,10 +5079,10 @@ listr-silent-renderer@^1.1.1:
   resolved "https://registry.yarnpkg.com/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz#924b5a3757153770bf1a8e3fbf74b8bbf3f9242e"
   integrity sha1-kktaN1cVN3C/Go4/v3S4u/P5JC4=
 
-listr-update-renderer@^0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/listr-update-renderer/-/listr-update-renderer-0.4.0.tgz#344d980da2ca2e8b145ba305908f32ae3f4cc8a7"
-  integrity sha1-NE2YDaLKLosUW6MFkI8yrj9MyKc=
+listr-update-renderer@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/listr-update-renderer/-/listr-update-renderer-0.5.0.tgz#4ea8368548a7b8aecb7e06d8c95cb45ae2ede6a2"
+  integrity sha512-tKRsZpKz8GSGqoI/+caPmfrypiaq+OQCbd+CovEC24uk1h952lVj5sC7SqyFUm+OaJ5HN/a1YLt5cit2FMNsFA==
   dependencies:
     chalk "^1.1.3"
     cli-truncate "^0.2.1"
@@ -5101,33 +5090,33 @@ listr-update-renderer@^0.4.0:
     figures "^1.7.0"
     indent-string "^3.0.0"
     log-symbols "^1.0.2"
-    log-update "^1.0.2"
+    log-update "^2.3.0"
     strip-ansi "^3.0.1"
 
-listr-verbose-renderer@^0.4.0:
-  version "0.4.1"
-  resolved "https://registry.yarnpkg.com/listr-verbose-renderer/-/listr-verbose-renderer-0.4.1.tgz#8206f4cf6d52ddc5827e5fd14989e0e965933a35"
-  integrity sha1-ggb0z21S3cWCfl/RSYng6WWTOjU=
+listr-verbose-renderer@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/listr-verbose-renderer/-/listr-verbose-renderer-0.5.0.tgz#f1132167535ea4c1261102b9f28dac7cba1e03db"
+  integrity sha512-04PDPqSlsqIOaaaGZ+41vq5FejI9auqTInicFRndCBgE3bXG8D6W1I+mWhk+1nqbHmyhla/6BUrd5OSiHwKRXw==
   dependencies:
-    chalk "^1.1.3"
-    cli-cursor "^1.0.2"
+    chalk "^2.4.1"
+    cli-cursor "^2.1.0"
     date-fns "^1.27.2"
-    figures "^1.7.0"
+    figures "^2.0.0"
 
 listr@^0.14.1:
-  version "0.14.2"
-  resolved "https://registry.yarnpkg.com/listr/-/listr-0.14.2.tgz#cbe44b021100a15376addfc2d79349ee430bfe14"
-  integrity sha512-vmaNJ1KlGuGWShHI35X/F8r9xxS0VTHh9GejVXwSN20fG5xpq3Jh4bJbnumoT6q5EDM/8/YP1z3YMtQbFmhuXw==
+  version "0.14.3"
+  resolved "https://registry.yarnpkg.com/listr/-/listr-0.14.3.tgz#2fea909604e434be464c50bddba0d496928fa586"
+  integrity sha512-RmAl7su35BFd/xoMamRjpIE4j3v+L28o8CT5YhAXQJm1fD+1l9ngXY8JAQRJ+tFK2i5njvi0iRUKV09vPwA0iA==
   dependencies:
     "@samverschueren/stream-to-observable" "^0.3.0"
     is-observable "^1.1.0"
     is-promise "^2.1.0"
     is-stream "^1.1.0"
     listr-silent-renderer "^1.1.1"
-    listr-update-renderer "^0.4.0"
-    listr-verbose-renderer "^0.4.0"
-    p-map "^1.1.1"
-    rxjs "^6.1.0"
+    listr-update-renderer "^0.5.0"
+    listr-verbose-renderer "^0.5.0"
+    p-map "^2.0.0"
+    rxjs "^6.3.3"
 
 load-json-file@^1.0.0:
   version "1.1.0"
@@ -5354,21 +5343,16 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@4.17.10:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
-  integrity sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==
+lodash@4.17.11, lodash@^4.0.1, lodash@^4.16.6, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
+  version "4.17.11"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
 lodash@4.17.5:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
   integrity sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw==
 
-lodash@^4.0.1, lodash@^4.16.6, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
-
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
@@ -5383,13 +5367,14 @@ log-symbols@^2.1.0, log-symbols@^2.2.0:
   dependencies:
     chalk "^2.0.1"
 
-log-update@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/log-update/-/log-update-1.0.2.tgz#19929f64c4093d2d2e7075a1dad8af59c296b8d1"
-  integrity sha1-GZKfZMQJPS0ucHWh2tivWcKWuNE=
+log-update@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/log-update/-/log-update-2.3.0.tgz#88328fd7d1ce7938b29283746f0b1bc126b24708"
+  integrity sha1-iDKP19HOeTiykoN0bwsbwSayRwg=
   dependencies:
-    ansi-escapes "^1.0.0"
-    cli-cursor "^1.0.2"
+    ansi-escapes "^3.0.0"
+    cli-cursor "^2.0.0"
+    wrap-ansi "^3.0.1"
 
 log4js@^3.0.0:
   version "3.0.6"
@@ -5422,19 +5407,21 @@ loud-rejection@^1.0.0:
     currently-unhandled "^0.4.1"
     signal-exit "^3.0.0"
 
-lru-cache@2.2.x:
-  version "2.2.4"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.2.4.tgz#6c658619becf14031d0d0b594b16042ce4dc063d"
-  integrity sha1-bGWGGb7PFAMdDQtZSxYELOTcBj0=
-
-lru-cache@^4.0.1, lru-cache@^4.1.1:
-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
-  integrity sha512-fFEhvcgzuIoJVUF8fYr5KR0YqxD238zgObTps31YdADwPPAp82a4M8TrckkWyx7ekNlf9aBcVn81cFwwXngrJA==
+lru-cache@4.1.x, lru-cache@^4.0.1, lru-cache@^4.1.1:
+  version "4.1.5"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
+  integrity sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==
   dependencies:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+lru-cache@^5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-5.1.1.tgz#1da27e6710271947695daf6848e847f01d84b920"
+  integrity sha512-KpNARQA3Iwv+jTA0utUVVbrh+Jlrr1Fv0e56GGzAFOXN7dk/FviaDW8LHmK52DlcH4WP2n6gI8vN1aesBFgo9w==
+  dependencies:
+    yallist "^3.0.2"
+
 lru-cache@~2.6.5:
   version "2.6.5"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.6.5.tgz#e56d6354148ede8d7707b58d143220fd08df0fd5"
@@ -5542,9 +5529,9 @@ meow@^4.0.0:
     trim-newlines "^2.0.0"
 
 merge@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
-  integrity sha1-dTHjnUlJwoGma4xabgJl6LBYlNo=
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.1.tgz#38bebf80c3220a8a487b6fcfb3941bb11720c145"
+  integrity sha512-VjFo4P5Whtj4vsLzsYBu5ayHhoHJ0UqNm7ibvShmbmoz7tGi0vXaoJbGdB+GmDMLUdg8DpQXEIeVDAe8MaABvQ==
 
 micromatch@^2.3.11, micromatch@^2.3.7:
   version "2.3.11"
@@ -5597,7 +5584,7 @@ mime-db@~1.37.0:
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.37.0.tgz#0b6a0ce6fdbe9576e25f1f2d2fde8830dc0ad0d8"
   integrity sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==
 
-mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19:
+mime-types@^2.1.12, mime-types@~2.1.18, mime-types@~2.1.19:
   version "2.1.21"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.21.tgz#28995aa1ecb770742fe6ae7e58f9181c744b3f96"
   integrity sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==
@@ -5610,9 +5597,9 @@ mime@^1.6.0:
   integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
 
 mime@^2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-2.3.1.tgz#b1621c54d63b97c47d3cfe7f7215f7d64517c369"
-  integrity sha512-OEUllcVoydBHGN1z84yfQDimn58pZNNNXgZlHXSboxMlFvgI6MXSWpWKpFRra7H1HxpVhHTkrghfRW49k6yjeg==
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-2.4.0.tgz#e051fd881358585f3279df333fe694da0bcffdd6"
+  integrity sha512-ikBcWwyqXQSHKtciCcctu9YfPbFYZ4+gbHEmE0Q8jzcTYQg5dHCr3g2wwAZjPoJfQVXZq6KXAjpXOTf5/cjT7w==
 
 mimic-fn@^1.0.0:
   version "1.2.0"
@@ -5666,7 +5653,7 @@ minimist@~0.0.1:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
-minipass@^2.2.1, minipass@^2.3.3:
+minipass@^2.2.1, minipass@^2.3.4:
   version "2.3.5"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.5.tgz#cacebe492022497f656b0f0f51e2682a9ed2d848"
   integrity sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==
@@ -5674,17 +5661,17 @@ minipass@^2.2.1, minipass@^2.3.3:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
-minizlib@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.1.1.tgz#6734acc045a46e61d596a43bb9d9cd326e19cc42"
-  integrity sha512-TrfjCjk4jLhcJyGMYymBH6oTXcWjYbUAXTHDbtnWHjZC25h0cdajHuPE1zxb4DVmu8crfh+HwH/WMuyLG0nHBg==
+minizlib@^1.1.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.2.1.tgz#dd27ea6136243c7c880684e8672bb3a45fd9b614"
+  integrity sha512-7+4oTUOWKg7AuL3vloEWekXY2/D20cevzsrNT2kGWm+39J9hGTCBv8VI5Pm5lXZ/o3/mdR4f8rflAPhnQb8mPA==
   dependencies:
     minipass "^2.2.1"
 
-mississippi@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-2.0.0.tgz#3442a508fafc28500486feea99409676e4ee5a6f"
-  integrity sha512-zHo8v+otD1J10j/tC+VNoGK9keCuByhKovAvdn74dmxJl9+mWHnx6EMsDN4lgRoMI/eYo2nchAxniIbUPb5onw==
+mississippi@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-3.0.0.tgz#ea0a3291f97e0b5e8776b363d5f0a12d94c67022"
+  integrity sha512-x471SsVjUtBRtcvd4BzKE9kFC+/2TeWgKCgw0bZcw1b9l2X3QX5vCWgF+KaZaYm87Ss//rHnWryupDrgLvmSkA==
   dependencies:
     concat-stream "^1.5.0"
     duplexify "^3.4.2"
@@ -5692,7 +5679,7 @@ mississippi@^2.0.0:
     flush-write-stream "^1.0.0"
     from2 "^2.1.0"
     parallel-transform "^1.1.0"
-    pump "^2.0.1"
+    pump "^3.0.0"
     pumpify "^1.3.3"
     stream-each "^1.1.0"
     through2 "^2.0.0"
@@ -5777,9 +5764,9 @@ mute-stream@0.0.7:
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
 nan@^2.9.2:
-  version "2.11.1"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.11.1.tgz#90e22bccb8ca57ea4cd37cc83d3819b52eea6766"
-  integrity sha512-iji6k87OSXa0CcrLl9z+ZiYSuR2o+c0bGuNmXdrhTQTakxytAFsC56SArGYoiHlJlFoHSnvmhpceZJaXkVuOtA==
+  version "2.12.1"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.12.1.tgz#7b1aa193e9aa86057e3c7bbd0ac448e770925552"
+  integrity sha512-JY7V6lRkStKcKTvHO5NVSQRv+RV+FIL5pvDoLiAtSL9pKlC5x9PKQcZDsq7m4FO4d57mkhC6Z+QhAh3Jdk5JFw==
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -5911,10 +5898,10 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
-node-releases@^1.0.0-alpha.14:
-  version "1.0.0-alpha.14"
-  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.0.0-alpha.14.tgz#da9e2780add4bbb59ad890af9e2018a1d9c0034b"
-  integrity sha512-G8nnF9cP9QPP/jUmYWw/uUUhumHmkm+X/EarCugYFjYm2uXRMFeOD6CVT3RLdoyCvDUNy51nirGfUItKWs/S1g==
+node-releases@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.2.tgz#93c17fba5eec8650ad908de5433fa8763baebe4d"
+  integrity sha512-j1gEV/zX821yxdWp/1vBMN0pSUjuH9oGUdLCb4PfUko6ZW7KdRs3Z+QGGwDUhYtSpQvdVVyLd2V0YvLsmdg5jQ==
   dependencies:
     semver "^5.3.0"
 
@@ -6011,11 +5998,6 @@ number-is-nan@^1.0.0:
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
   integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
 
-oauth-sign@~0.8.2:
-  version "0.8.2"
-  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
-  integrity sha1-Rqarfwrq2N6unsBWV4C31O/rnUM=
-
 oauth-sign@~0.9.0:
   version "0.9.0"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
@@ -6212,6 +6194,11 @@ p-map@^1.1.1:
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
   integrity sha512-r6zKACMNhjPJMTl8KcFH4li//gkrXWfbD6feV8l6doRHlzljFWGJ2AP6iKaCJXyZmAUMOPtvbW7EXkbWO/pLEA==
 
+p-map@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-map/-/p-map-2.0.0.tgz#be18c5a5adeb8e156460651421aceca56c213a50"
+  integrity sha512-GO107XdrSUmtHxVoi60qc9tUl/KkNKm+X2CF4P9amalpGxv5YqVPJNfSb0wcA+syCopkZvYYIzW8OVTQW59x/w==
+
 p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
@@ -6256,9 +6243,9 @@ pad-right@^0.2.2:
     repeat-string "^1.5.2"
 
 pako@~1.0.5:
-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
-  integrity sha512-lQe48YPsMJAig+yngZ87Lus+NF+3mtu7DVOBu6b/gHO1YpKwIj5AWjZ/TOS7i46HD/UixzWb1zeWDZfGZ3iYcg==
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.7.tgz#2473439021b57f1516c82f58be7275ad8ef1bb27"
+  integrity sha512-3HNK5tW4x8o5mO8RuHZp3Ydw9icZXx0RANAOMzlMzx7LVXhMJ4mo3MOBpzyd7r/+RUu8BmndP47LXT+vzjtWcQ==
 
 parallel-transform@^1.1.0:
   version "1.1.0"
@@ -6376,7 +6363,7 @@ path-key@^2.0.0, path-key@^2.0.1:
   resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
-path-parse@^1.0.5:
+path-parse@^1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
   integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
@@ -6469,6 +6456,13 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
+pkg-dir@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-3.0.0.tgz#2749020f239ed990881b1f71210d51eb6523bea3"
+  integrity sha512-/E57AYkoeQ25qkxMj5PBOVgF8Kiu/h7cYS30Z5+R7WaiCCBfLq58ZI/dSeaEKb9WVJV5n/03QwrN3IeWIFllvw==
+  dependencies:
+    find-up "^3.0.0"
+
 please-upgrade-node@^3.0.2:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.1.1.tgz#ed320051dfcc5024fae696712c8288993595e8ac"
@@ -6482,9 +6476,9 @@ pluralize@^7.0.0:
   integrity sha512-ARhBOdzS3e41FbkW/XWrTEtukqqLoK5+Z/4UeDaLuSW+39JPeFgs4gCGqsrJHVZX0fUrx//4OF0K1CUGwlIFow==
 
 portfinder@^1.0.13:
-  version "1.0.19"
-  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.19.tgz#07e87914a55242dcda5b833d42f018d6875b595f"
-  integrity sha512-23aeQKW9KgHe6citUrG3r9HjeX6vls0h713TAa+CwTKZwNIr/pD2ApaxYF4Um3ZZyq4ar+Siv3+fhoHaIwSOSw==
+  version "1.0.20"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.20.tgz#bea68632e54b2e13ab7b0c4775e9b41bf270e44a"
+  integrity sha512-Yxe4mTyDzTd59PZJY4ojZR8F+E5e97iq2ZOHPz3HDgSvYC5siNad2tLooQ5y5QHyQhc3xVqvyk/eNA3wuoa7Sw==
   dependencies:
     async "^1.5.2"
     debug "^2.2.0"
@@ -6534,9 +6528,9 @@ progress@^1.1.8:
   integrity sha1-4mDHj2Fhzdmw5WzD4Khd4Xx6V74=
 
 progress@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.1.tgz#c9242169342b1c29d275889c95734621b1952e31"
-  integrity sha512-OE+a6vzqazc+K6LxJrX5UPyKFvGnL5CYmq2jFGNIBWHpc4QyE49/YOumcrpQFJpfejmvRtbJzgO1zPmMCqlbBg==
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.3.tgz#7e8cf8d8f5b8f239c1bc68beb4eb78567d572ef8"
+  integrity sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==
 
 promise-inflight@^1.0.1:
   version "1.0.1"
@@ -6568,9 +6562,9 @@ pseudomap@^1.0.2:
   integrity sha1-8FKijacOYYkX7wqKw0wa5aaChrM=
 
 psl@^1.1.24:
-  version "1.1.29"
-  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.29.tgz#60f580d360170bb722a797cc704411e6da850c67"
-  integrity sha512-AeUmQ0oLN02flVHXWh9sSJF7mcdFq0ppid/JkErufc3hGIV/AMa8Fo9VgDo/cT2jFdOWoFvHp90qqBH54W+gjQ==
+  version "1.1.31"
+  resolved "https://registry.yarnpkg.com/psl/-/psl-1.1.31.tgz#e9aa86d0101b5b105cbe93ac6b784cd547276184"
+  integrity sha512-/6pt4+C+T+wZUieKR620OpzN/LlnNKuWjy1iFLQ/UG35JqHlR/89MP1d96dUfkf6Dne3TuLQzOYEYshJ+Hx8mw==
 
 public-encrypt@^4.0.0:
   version "4.0.3"
@@ -6584,7 +6578,7 @@ public-encrypt@^4.0.0:
     randombytes "^2.0.1"
     safe-buffer "^5.1.2"
 
-pump@^2.0.0, pump@^2.0.1:
+pump@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/pump/-/pump-2.0.1.tgz#12399add6e4cf7526d973cbc8b5ce2e2908b3909"
   integrity sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==
@@ -6592,6 +6586,14 @@ pump@^2.0.0, pump@^2.0.1:
     end-of-stream "^1.1.0"
     once "^1.3.1"
 
+pump@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
+  integrity sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
 pumpify@^1.3.3:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/pumpify/-/pumpify-1.5.1.tgz#36513be246ab27570b1a374a5ce278bfd74370ce"
@@ -6631,7 +6633,7 @@ qjobs@^1.1.4:
   resolved "https://registry.yarnpkg.com/qjobs/-/qjobs-1.2.0.tgz#c45e9c61800bd087ef88d7e256423bdd49e5d071"
   integrity sha512-8YOJEHtxpySA3fFDyCRxA+UUV+fA+rTWnuWvylOK/NCjhY+b4ocCtmu8TtsWb+mYeU+GCHf/S66KZF/AsteKHg==
 
-qs@6.5.2, qs@~6.5.1, qs@~6.5.2:
+qs@6.5.2, qs@~6.5.2:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
   integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
@@ -6747,7 +6749,7 @@ read-pkg@^3.0.0:
     normalize-package-data "^2.3.2"
     path-type "^3.0.0"
 
-"readable-stream@1 || 2", readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6:
+"readable-stream@1 || 2", readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -6852,26 +6854,26 @@ regexpp@^2.0.1:
   integrity sha512-lv0M6+TkDVniA3aD1Eg0DVpfU/booSu7Eev3TDO/mZKHBfVjgCGTV4t4buppESEYDtkArYFOxTJWv6S5C+iaNw==
 
 regexpu-core@^4.1.3, regexpu-core@^4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-4.2.0.tgz#a3744fa03806cffe146dea4421a3e73bdcc47b1d"
-  integrity sha512-Z835VSnJJ46CNBttalHD/dB+Sj2ezmY6Xp38npwU87peK6mqOzOpV8eYktdkLTEkzzD+JsTcxd84ozd8I14+rw==
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/regexpu-core/-/regexpu-core-4.4.0.tgz#8d43e0d1266883969720345e70c275ee0aec0d32"
+  integrity sha512-eDDWElbwwI3K0Lo6CqbQbA6FwgtCz4kYTarrri1okfkRLZAqstU+B3voZBCjg8Fl6iq0gXrJG6MvRgLthfvgOA==
   dependencies:
     regenerate "^1.4.0"
     regenerate-unicode-properties "^7.0.0"
-    regjsgen "^0.4.0"
-    regjsparser "^0.3.0"
+    regjsgen "^0.5.0"
+    regjsparser "^0.6.0"
     unicode-match-property-ecmascript "^1.0.4"
     unicode-match-property-value-ecmascript "^1.0.2"
 
-regjsgen@^0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.4.0.tgz#c1eb4c89a209263f8717c782591523913ede2561"
-  integrity sha512-X51Lte1gCYUdlwhF28+2YMO0U6WeN0GLpgpA7LK7mbdDnkQYiwvEpmpe0F/cv5L14EbxgrdayAG3JETBv0dbXA==
+regjsgen@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.5.0.tgz#a7634dc08f89209c2049adda3525711fb97265dd"
+  integrity sha512-RnIrLhrXCX5ow/E5/Mh2O4e/oa1/jW0eaBKTSy3LaCj+M3Bqvm97GWDp2yUtzIs4LEn65zR2yiYGFqb2ApnzDA==
 
-regjsparser@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.3.0.tgz#3c326da7fcfd69fa0d332575a41c8c0cdf588c96"
-  integrity sha512-zza72oZBBHzt64G7DxdqrOo/30bhHkwMUoT0WqfGu98XLd7N+1tsy5MJ96Bk4MD0y74n629RhmrGW6XlnLLwCA==
+regjsparser@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.6.0.tgz#f1e6ae8b7da2bae96c99399b868cd6c933a2ba9c"
+  integrity sha512-RQ7YyokLiQBomUJuUG8iGVvkgOLxwyZM8k6d3q5SAXpg4r5TZJZigKFvC6PpD+qQ98bCDC5YelPeA3EucDoNeQ==
   dependencies:
     jsesc "~0.5.0"
 
@@ -6909,35 +6911,7 @@ request-progress@^2.0.1:
   dependencies:
     throttleit "^1.0.0"
 
-request@2.85.0:
-  version "2.85.0"
-  resolved "https://registry.yarnpkg.com/request/-/request-2.85.0.tgz#5a03615a47c61420b3eb99b7dba204f83603e1fa"
-  integrity sha512-8H7Ehijd4js+s6wuVPLjwORxD4zeuyjYugprdOXlPSqaApmL/QOy+EB/beICHVCHkGMKNh5rvihb5ov+IDw4mg==
-  dependencies:
-    aws-sign2 "~0.7.0"
-    aws4 "^1.6.0"
-    caseless "~0.12.0"
-    combined-stream "~1.0.5"
-    extend "~3.0.1"
-    forever-agent "~0.6.1"
-    form-data "~2.3.1"
-    har-validator "~5.0.3"
-    hawk "~6.0.2"
-    http-signature "~1.2.0"
-    is-typedarray "~1.0.0"
-    isstream "~0.1.2"
-    json-stringify-safe "~5.0.1"
-    mime-types "~2.1.17"
-    oauth-sign "~0.8.2"
-    performance-now "^2.1.0"
-    qs "~6.5.1"
-    safe-buffer "^5.1.1"
-    stringstream "~0.0.5"
-    tough-cookie "~2.3.3"
-    tunnel-agent "^0.6.0"
-    uuid "^3.1.0"
-
-request@^2.81.0, request@^2.87.0:
+request@2.88.0, request@^2.81.0, request@^2.87.0, request@^2.88.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
@@ -6994,6 +6968,11 @@ resolve-from@^1.0.0:
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
   integrity sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=
 
+resolve-from@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
+  integrity sha1-six699nWiBvItuZTM17rywoYh0g=
+
 resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
@@ -7005,11 +6984,11 @@ resolve@1.1.x:
   integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
 
 resolve@^1.1.6, resolve@^1.3.2, resolve@^1.3.3, resolve@^1.8.1:
-  version "1.8.1"
-  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.1.tgz#82f1ec19a423ac1fbd080b0bab06ba36e84a7a26"
-  integrity sha512-AicPrAC7Qu1JxPCZ9ZgCZlY35QgFnNqc+0LtbRNxnVw4TXvjQ72wnuL9JQcEBgXkI9JM8MsT9kaQoHcpCRJOYA==
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.9.0.tgz#a14c6fdfa8f92a7df1d996cb7105fa744658ea06"
+  integrity sha512-TZNye00tI67lwYvzxCxHGjwTNlUV70io54/Ed4j6PscB8xVfuBJpRenI/o6dVk0cY0PYTY27AgCoGGxRnYuItQ==
   dependencies:
-    path-parse "^1.0.5"
+    path-parse "^1.0.6"
 
 restore-cursor@^1.0.1:
   version "1.0.1"
@@ -7042,7 +7021,7 @@ right-pad@^1.0.1:
   resolved "https://registry.yarnpkg.com/right-pad/-/right-pad-1.0.1.tgz#8ca08c2cbb5b55e74dafa96bf7fd1a27d568c8d0"
   integrity sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=
 
-rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1, rimraf@^2.6.2:
+rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1, rimraf@^2.6.2, rimraf@~2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==
@@ -7058,26 +7037,26 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     inherits "^2.0.1"
 
 rollup-plugin-alias@^1.3.1:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-alias/-/rollup-plugin-alias-1.4.0.tgz#120cba7c46621c03138f0ca6fd5dd2ade9872db9"
-  integrity sha512-lB094zdi19FS+1bVarVp9kBN0Zk41PdTGoCk0z8xesKO7RGjOo18cp1hUzEqrOQ4bM9+KLD9nbnu/XUxQm9pbg==
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-alias/-/rollup-plugin-alias-1.5.1.tgz#80cce3a967befda5b09c86abc14a043a78035b46"
+  integrity sha512-pQTYBRNfLedoVOO7AYHNegIavEIp4jKTga5jUi1r//KYgHKGWgG4qJXYhbcWKt2k1FwGlR5wCYoY+IFkme0t4A==
   dependencies:
-    slash "^1.0.0"
+    slash "^2.0.0"
 
 rollup-plugin-babel@^4.0.1:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-4.0.3.tgz#8282b0e22233160d679e9c7631342e848422fb02"
-  integrity sha512-/PP0MgbPQyRywI4zRIJim6ySjTcOLo4kQbEbROqp9kOR3kHC3FeU++QpBDZhS2BcHtJTVZMVbBV46flbBN5zxQ==
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-4.1.0.tgz#c97f50c82aa8e89ddaa116cdc5c832b8ba74db17"
+  integrity sha512-4IYv/yTNyH4P/Cma1mWdqy42gc051i1mTe/6oe8F055WzJGSb2qs1mSDwZTo93wA6kMBgHBIR/OcBk7JMnL59Q==
   dependencies:
     "@babel/helper-module-imports" "^7.0.0"
     rollup-pluginutils "^2.3.0"
 
 rollup-plugin-buble@^0.19.2:
-  version "0.19.4"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.19.4.tgz#b0dde11ad2736b68e94ba2aa34de7822c6e28d24"
-  integrity sha512-mahvTRn9mUVKEUyA5QbrfdybOH7tipHRe4zkKZjEGMB3YSaLW95kHFSB4Vdt7BofyG9r7zMCCmAsEqZKkRaN6A==
+  version "0.19.6"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.19.6.tgz#55ee0995d8870d536f01f4277c3eef4276e8747e"
+  integrity sha512-El5Fut4/wEO17ZN/n9BZvqd7DXXB2WbJr/DKvr89LXChC/cHllE0XwiUDeAalrTkgr0WrnyLDTCQvEv+cGywWQ==
   dependencies:
-    buble "^0.19.4"
+    buble "^0.19.6"
     rollup-pluginutils "^2.3.3"
 
 rollup-plugin-commonjs@^9.2.0:
@@ -7098,14 +7077,14 @@ rollup-plugin-flow-no-whitespace@^1.0.0:
     flow-remove-types-no-whitespace "^1.0.3"
     rollup-pluginutils "^1.5.2"
 
-rollup-plugin-node-resolve@^3.0.0:
-  version "3.4.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.4.0.tgz#908585eda12e393caac7498715a01e08606abc89"
-  integrity sha512-PJcd85dxfSBWih84ozRtBkB731OjXk0KnzN0oGp7WOWcarAFkVa71cV5hTJg2qpVsV2U8EUwrzHP3tvy9vS3qg==
+rollup-plugin-node-resolve@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-4.0.0.tgz#9bc6b8205e9936cc0e26bba2415f1ecf1e64d9b2"
+  integrity sha512-7Ni+/M5RPSUBfUaP9alwYQiIKnKeXCOHiqBpKUl9kwp3jX5ZJtgXAait1cne6pGEVUUztPD6skIKH9Kq9sNtfw==
   dependencies:
-    builtin-modules "^2.0.0"
+    builtin-modules "^3.0.0"
     is-module "^1.0.0"
-    resolve "^1.1.6"
+    resolve "^1.8.1"
 
 rollup-plugin-replace@^2.0.0:
   version "2.1.0"
@@ -7132,10 +7111,10 @@ rollup-pluginutils@^2.0.1, rollup-pluginutils@^2.3.0, rollup-pluginutils@^2.3.3:
     estree-walker "^0.5.2"
     micromatch "^2.3.11"
 
-rollup@^0.66.6:
-  version "0.66.6"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.66.6.tgz#ce7d6185beb7acea644ce220c25e71ae03275482"
-  integrity sha512-J7/SWanrcb83vfIHqa8+aVVGzy457GcjA6GVZEnD0x2u4OnOd0Q1pCrEoNe8yLwM6z6LZP02zBT2uW0yh5TqOw==
+rollup@^0.68.1:
+  version "0.68.1"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.68.1.tgz#40d03872d3b05848fb023b12ebf7c6d69cab84c5"
+  integrity sha512-8DNKos2p/B7gDoxI42kyIHHX8d+Zt+bwhjUgXnTqnSP+CSPkRNNIQyHIcTqeGdYWR70qG6c1DaRcrjWAiG6Akg==
   dependencies:
     "@types/estree" "0.0.39"
     "@types/node" "*"
@@ -7159,7 +7138,7 @@ rx@^4.1.0:
   resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
   integrity sha1-pfE/957zt0D+MKqAP7CfmIBdR4I=
 
-rxjs@^6.1.0:
+rxjs@^6.1.0, rxjs@^6.3.3:
   version "6.3.3"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.3.3.tgz#3c6a7fa420e844a81390fb1158a9ec614f4bad55"
   integrity sha512-JTWmoY9tWCs7zvIk/CvRjhjGaOd+OVBM987mxFo+OW66cGpdKjZcpmc74ES1sB//7Kl/PAe8+wEakuhG4pcgOw==
@@ -7214,6 +7193,15 @@ schema-utils@^0.4.4, schema-utils@^0.4.5:
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
 
+schema-utils@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-1.0.0.tgz#0b79a93204d7b600d4b2850d1f66c2a34951c770"
+  integrity sha512-i27Mic4KovM/lnGsy8whRCHhc7VicJajAjTrYg11K9zfZXnYIt4k5F+kZkwjnrhKzLic/HLU4j11mjsz2G/75g==
+  dependencies:
+    ajv "^6.1.0"
+    ajv-errors "^1.0.0"
+    ajv-keywords "^3.1.0"
+
 selenium-server@^2.53.1:
   version "2.53.1"
   resolved "https://registry.yarnpkg.com/selenium-server/-/selenium-server-2.53.1.tgz#d681528812f3c2e0531a6b7e613e23bb02cce8a6"
@@ -7304,9 +7292,9 @@ shelljs@0.7.6:
     rechoir "^0.6.2"
 
 shelljs@^0.8.1:
-  version "0.8.2"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.2.tgz#345b7df7763f4c2340d584abb532c5f752ca9e35"
-  integrity sha512-pRXeNrCA2Wd9itwhvLp5LZQvPJ0wU6bcjaTMywHHGX5XWhVN2nzSu7WV0q+oUY7mGK3mgSkDDzP3MgjqdyIgbQ==
+  version "0.8.3"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.3.tgz#a7f3319520ebf09ee81275b2368adb286659b097"
+  integrity sha512-fc0BKlAWiLpwZljmOvAOTE/gXawtCoNrP5oaY7KIaQbbyHeQVg01pSEuEGvGh3HEdBU4baCD7wQBwADmM/7f7A==
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"
@@ -7317,21 +7305,23 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
-slash@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
-  integrity sha1-xB8vbDn8FtHNF61LXYlhFK5HDVU=
+slash@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/slash/-/slash-2.0.0.tgz#de552851a1759df3a8f206535442f5ec4ddeab44"
+  integrity sha512-ZYKh3Wh2z1PpEXWr0MpSBZ0V6mZHAQfYevttO11c51CaWjGTaadiKZ+wVt1PbMlDV5qhMFslpZCemhwOK7C89A==
 
 slice-ansi@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
   integrity sha1-7b+JA/ZvfOL46v1s7tZeJkyDGzU=
 
-slice-ansi@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
-  integrity sha512-POqxBK6Lb3q6s047D/XsDVNPnF9Dl8JSaqe9h9lURl0OdNqy/ujDrOiIHtsqXMGbWWTIomRzAMaTyawAU//Reg==
+slice-ansi@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-2.0.0.tgz#5373bdb8559b45676e8541c66916cdd6251612e7"
+  integrity sha512-4j2WTWjp3GsZ+AOagyzVbzp4vWGtZ0hEZ/gDY/uTvm6MTxUfTUIsnMIFb1bn8o0RuXiqUw15H1bue8f22Vw2oQ==
   dependencies:
+    ansi-styles "^3.2.0"
+    astral-regex "^1.0.0"
     is-fullwidth-code-point "^2.0.0"
 
 smart-buffer@^1.0.13:
@@ -7369,13 +7359,6 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
-sntp@2.x.x:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/sntp/-/sntp-2.1.0.tgz#2c6cec14fedc2222739caf9b5c3d85d1cc5a2cc8"
-  integrity sha512-FL1b58BDrqS3A11lJ0zEdnJ3UOKqVxawAkF3k7F0CVN7VQ34aZrV+G8BZ1WC9ZL7NyrwsW0oviwsWDgRuVYtJg==
-  dependencies:
-    hoek "4.x.x"
-
 socket.io-adapter@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz#2a805e8a14d6372124dd9159ad4502f8cb07f06b"
@@ -7486,9 +7469,9 @@ source-map@~0.2.0:
     amdefine ">=0.0.4"
 
 sourcemap-codec@^1.4.1:
-  version "1.4.3"
-  resolved "https://registry.yarnpkg.com/sourcemap-codec/-/sourcemap-codec-1.4.3.tgz#0ba615b73ec35112f63c2f2d9e7c3f87282b0e33"
-  integrity sha512-vFrY/x/NdsD7Yc8mpTJXuao9S8lq08Z/kOITHz6b7YbfI9xL8Spe5EvSQUHOI7SbpY8bRPr0U3kKSsPuqEGSfA==
+  version "1.4.4"
+  resolved "https://registry.yarnpkg.com/sourcemap-codec/-/sourcemap-codec-1.4.4.tgz#c63ea927c029dd6bd9a2b7fa03b3fec02ad56e9f"
+  integrity sha512-CYAPYdBu34781kLHkaW3m6b/uUSyMOC2R61gcYMWooeuaGtjof86ZA/8T+qVPPt7np1085CR9hmMGrySwEc8Xg==
 
 spawn-sync@^1.0.15:
   version "1.0.15"
@@ -7499,9 +7482,9 @@ spawn-sync@^1.0.15:
     os-shim "^0.1.2"
 
 spdx-correct@^3.0.0:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.0.2.tgz#19bb409e91b47b1ad54159243f7312a858db3c2e"
-  integrity sha512-q9hedtzyXHr5S0A1vEPoK/7l8NpfkFYTq6iCY+Pno2ZbdZR6WexZFtqeVGkGxW3TEJMN914Z55EnAGMmenlIQQ==
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.1.0.tgz#fb83e504445268f154b074e218c87c003cd31df4"
+  integrity sha512-lr2EZCctC2BNR7j7WzJ2FpDznxky1sjfxvvYEyzxNyb6lZXHODmEoJeFu4JupYlkfha1KZpJyoqiJ7pgA1qq8Q==
   dependencies:
     spdx-expression-parse "^3.0.0"
     spdx-license-ids "^3.0.0"
@@ -7520,9 +7503,9 @@ spdx-expression-parse@^3.0.0:
     spdx-license-ids "^3.0.0"
 
 spdx-license-ids@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.1.tgz#e2a303236cac54b04031fa7a5a79c7e701df852f"
-  integrity sha512-TfOfPcYGBB5sDuPn3deByxPhmfegAhpDYKSOXZQN81Oyrrif8ZCodOLzK3AesELnCx03kikhyDwh0pfvvQvF8w==
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.3.tgz#81c0ce8f21474756148bbb5f3bfc0f36bf15d76e"
+  integrity sha512-uBIcIl3Ih6Phe3XHK1NqboJLdGfwr1UN3k6wSD1dZpmPsIkb8AGNbZYJ1fOBk834+Gxy8rpfDxrS6XLEMZMY2g==
 
 split-string@^3.0.1, split-string@^3.0.2:
   version "3.1.0"
@@ -7551,9 +7534,9 @@ sprintf-js@~1.0.2:
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
 sshpk@^1.7.0:
-  version "1.15.1"
-  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.15.1.tgz#b79a089a732e346c6e0714830f36285cd38191a2"
-  integrity sha512-mSdgNUaidk+dRU5MhYtN9zebdzF2iG0cNPWy8HG+W8y+fT1JnSkh0fzzpjOa0L7P8i1Rscz38t0h4gPcKz43xA==
+  version "1.16.0"
+  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.16.0.tgz#1d4963a2fbffe58050aa9084ca20be81741c07de"
+  integrity sha512-Zhev35/y7hRMcID/upReIvRse+I9SVhyVre/KTJSJQWMz3C3+G+HpO7m1wK/yckEtujKZ7dS4hkVxAnmHaIGVQ==
   dependencies:
     asn1 "~0.2.3"
     assert-plus "^1.0.0"
@@ -7565,12 +7548,12 @@ sshpk@^1.7.0:
     safer-buffer "^2.0.2"
     tweetnacl "~0.14.0"
 
-ssri@^5.2.4:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/ssri/-/ssri-5.3.0.tgz#ba3872c9c6d33a0704a7d71ff045e5ec48999d06"
-  integrity sha512-XRSIPqLij52MtgoQavH/x/dU1qVKtWUAAZeOHsR9c2Ddi4XerFy3mc1alf+dLJKl9EUIm/Ht+EowFkTUOA6GAQ==
+ssri@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.1.tgz#2a3c41b28dd45b62b63676ecb74001265ae9edd8"
+  integrity sha512-3Wge10hNcT1Kur4PDFwEieXSCMCJs/7WvSACcrMYrNp+b8kDL1/0wJch5Ni2WrtwEa2IO8OsVfeKIciKCDx/QA==
   dependencies:
-    safe-buffer "^5.1.1"
+    figgy-pudding "^3.5.1"
 
 staged-git-files@1.1.1:
   version "1.1.1"
@@ -7659,10 +7642,10 @@ string-width@^1.0.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
-string_decoder@^1.0.0, string_decoder@~1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
-  integrity sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==
+string_decoder@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.2.0.tgz#fe86e738b19544afe70469243b2a1ee9240eae8d"
+  integrity sha512-6YqyX6ZWEYguAxgZzHGL7SsCeGx3V2TtOTqZz1xSTSWnqsbWwbptafNyvf/ACquZUXV3DANr5BDIwNYe1mN42w==
   dependencies:
     safe-buffer "~5.1.0"
 
@@ -7671,6 +7654,13 @@ string_decoder@~0.10.x:
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
   integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
 
+string_decoder@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  integrity sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==
+  dependencies:
+    safe-buffer "~5.1.0"
+
 stringify-object@^3.2.2:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/stringify-object/-/stringify-object-3.3.0.tgz#703065aefca19300d3ce88af4f5b3956d7556629"
@@ -7680,11 +7670,6 @@ stringify-object@^3.2.2:
     is-obj "^1.0.1"
     is-regexp "^1.0.0"
 
-stringstream@~0.0.5:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
-  integrity sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA==
-
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
@@ -7699,6 +7684,13 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
+strip-ansi@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.0.0.tgz#f78f68b5d0866c20b2c9b8c61b5298508dc8756f"
+  integrity sha512-Uu7gQyZI7J7gn5qLn1Np3G9vcYGTVqB+lFTytnDJv83dd8T22aGH451P3jueT2/QemInJDfxHB5Tde5OzgG1Ow==
+  dependencies:
+    ansi-regex "^4.0.0"
+
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -7765,19 +7757,19 @@ symbol-observable@^1.1.0:
   integrity sha512-e900nM8RRtGhlV36KGEU9k65K3mPb1WV70OdjfxlG2EAuM1noi/E/BaW/uMhL7bPEssK8QV57vN3esixjUvcXQ==
 
 table@^5.0.2:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/table/-/table-5.1.0.tgz#69a54644f6f01ad1628f8178715b408dc6bf11f7"
-  integrity sha512-e542in22ZLhD/fOIuXs/8yDZ9W61ltF8daM88rkRNtgTIct+vI2fTnAyu/Db2TCfEcI8i7mjZz6meLq0nW7TYg==
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/table/-/table-5.1.1.tgz#92030192f1b7b51b6eeab23ed416862e47b70837"
+  integrity sha512-NUjapYb/qd4PeFW03HnAuOJ7OMcBkJlqeClWxeNlQ0lXGSb52oZXGzkO0/I0ARegQ2eUT1g2VDJH0eUxDRcHmw==
   dependencies:
-    ajv "^6.5.3"
-    lodash "^4.17.10"
-    slice-ansi "1.0.0"
+    ajv "^6.6.1"
+    lodash "^4.17.11"
+    slice-ansi "2.0.0"
     string-width "^2.1.1"
 
 tapable@^1.0.0, tapable@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.0.tgz#0d076a172e3d9ba088fd2272b2668fb8d194b78c"
-  integrity sha512-IlqtmLVaZA2qab8epUXbVWRn3aB1imbDMJtjB3nu4X0NqPkcY/JH9ZtCBWKHWPxs8Svi9tyo8w2dBoi07qZbBA==
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.1.tgz#4d297923c5a72a42360de2ab52dadfaaec00018e"
+  integrity sha512-9I2ydhj8Z9veORCw5PRm4u9uebCn0mcCa6scWoNcbZ6dAtoo2618u9UUzxgmsCOreJpqDDuv61LvwofW7hLcBA==
 
 tar-stream@^1.5.0:
   version "1.6.2"
@@ -7793,22 +7785,44 @@ tar-stream@^1.5.0:
     xtend "^4.0.0"
 
 tar@^4:
-  version "4.4.6"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.6.tgz#63110f09c00b4e60ac8bcfe1bf3c8660235fbc9b"
-  integrity sha512-tMkTnh9EdzxyfW+6GK6fCahagXsnYk6kE6S9Gr9pjVdys769+laCTbodXDhPAjzVtEBazRgP0gYqOjnk9dQzLg==
+  version "4.4.8"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.8.tgz#b19eec3fde2a96e64666df9fdb40c5ca1bc3747d"
+  integrity sha512-LzHF64s5chPQQS0IYBn9IN5h3i98c12bo4NCO7e0sGM2llXQ3p2FGC5sdENN4cTW48O915Sh+x+EXx7XW96xYQ==
   dependencies:
-    chownr "^1.0.1"
+    chownr "^1.1.1"
     fs-minipass "^1.2.5"
-    minipass "^2.3.3"
-    minizlib "^1.1.0"
+    minipass "^2.3.4"
+    minizlib "^1.1.1"
     mkdirp "^0.5.0"
     safe-buffer "^5.1.2"
     yallist "^3.0.2"
 
-terser@^3.10.2:
-  version "3.10.2"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-3.10.2.tgz#a61d2c97065f9fdc8c49a18655e2a80ca7298a94"
-  integrity sha512-+QrFoqBImmsQGB4c/HvaqgZynmbNvNBwoBxuu7fYXtq5EEtlLUzph+WimDj+xMkuqawXPMl2lgCIz81CdXvt+w==
+tcp-port-used@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/tcp-port-used/-/tcp-port-used-1.0.1.tgz#46061078e2d38c73979a2c2c12b5a674e6689d70"
+  integrity sha512-rwi5xJeU6utXoEIiMvVBMc9eJ2/ofzB+7nLOdnZuFTmNCLqRiQh2sMG9MqCxHU/69VC/Fwp5dV9306Qd54ll1Q==
+  dependencies:
+    debug "4.1.0"
+    is2 "2.0.1"
+
+terser-webpack-plugin@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.1.0.tgz#cf7c25a1eee25bf121f4a587bb9e004e3f80e528"
+  integrity sha512-61lV0DSxMAZ8AyZG7/A4a3UPlrbOBo8NIQ4tJzLPAdGOQ+yoNC7l5ijEow27lBAL2humer01KLS6bGIMYQxKoA==
+  dependencies:
+    cacache "^11.0.2"
+    find-cache-dir "^2.0.0"
+    schema-utils "^1.0.0"
+    serialize-javascript "^1.4.0"
+    source-map "^0.6.1"
+    terser "^3.8.1"
+    webpack-sources "^1.1.0"
+    worker-farm "^1.5.2"
+
+terser@^3.10.2, terser@^3.8.1:
+  version "3.13.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-3.13.1.tgz#a02e8827fb9705fe7b609c31093d010b28cea8eb"
+  integrity sha512-ogyZye4DFqOtMzT92Y3Nxxw8OvXmL39HOALro4fc+EUYFFF9G/kk0znkvwMz6PPYgBtdKAodh3FPR70eugdaQA==
   dependencies:
     commander "~2.17.1"
     source-map "~0.6.1"
@@ -7840,11 +7854,11 @@ throttleit@^1.0.0:
   integrity sha1-nnhYNtr0Z0MUWlmEtiaNgoUorGw=
 
 through2@^2.0.0, through2@^2.0.2:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
-  integrity sha1-AARWmzfHx0ujnEPzzteNGtlBQL4=
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.5.tgz#01c1e39eb31d07cb7d03a96a70823260b23132cd"
+  integrity sha512-/mrRod8xqpA+IHSLyGCQ2s8SPHiCDEeQJSep1jqLYeEUClOFG2Qsh+4FU6G9VeqpZnGW/Su8LQGc4YKni5rYSQ==
   dependencies:
-    readable-stream "^2.1.5"
+    readable-stream "~2.3.6"
     xtend "~4.0.1"
 
 through@2, "through@>=2.2.7 <3", through@^2.3.6:
@@ -7928,13 +7942,6 @@ to-regex@^3.0.1, to-regex@^3.0.2:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
-tough-cookie@~2.3.3:
-  version "2.3.4"
-  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
-  integrity sha512-TZ6TTfI5NtZnuyy/Kecv+CnoROnyXn2DN97LontgQpCwsX2XyLYCC0ENhYkehSOwAp8rTQKc/NUIF7BkQ5rKLA==
-  dependencies:
-    punycode "^1.4.1"
-
 tough-cookie@~2.4.3:
   version "2.4.3"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
@@ -8011,17 +8018,9 @@ typedarray@^0.0.6:
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
 typescript@^3.1.3:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.3.tgz#01b70247a6d3c2467f70c45795ef5ea18ce191d5"
-  integrity sha512-+81MUSyX+BaSo+u2RbozuQk/UWx6hfG0a5gHu4ANEM4sU96XbuIyAB+rWBW1u70c6a5QuZfuYICn3s2UjuHUpA==
-
-uglify-es@^3.3.4:
-  version "3.3.9"
-  resolved "https://registry.yarnpkg.com/uglify-es/-/uglify-es-3.3.9.tgz#0c1c4f0700bed8dbc124cdb304d2592ca203e677"
-  integrity sha512-r+MU0rfv4L/0eeW3xZrd16t4NZfK8Ld4SWVglYBb7ez5uXFWHuVRs6xCTrf1yirs9a4j4Y27nn7SRfO6v67XsQ==
-  dependencies:
-    commander "~2.13.0"
-    source-map "~0.6.1"
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.2.2.tgz#fe8101c46aa123f8353523ebdcf5730c2ae493e5"
+  integrity sha512-VCj5UiSyHBjwfYacmDuc/NOk4QQixbE+Wn7MFJuS0nRuPQbof132Pw4u53dm264O8LPc2MVsc7RJNml5szurkg==
 
 uglify-js@^3.1.4:
   version "3.4.9"
@@ -8031,20 +8030,6 @@ uglify-js@^3.1.4:
     commander "~2.17.1"
     source-map "~0.6.1"
 
-uglifyjs-webpack-plugin@^1.2.4:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.3.0.tgz#75f548160858163a08643e086d5fefe18a5d67de"
-  integrity sha512-ovHIch0AMlxjD/97j9AYovZxG5wnHOPkL7T1GKochBADp/Zwc44pEWNqpKl1Loupp1WhFg7SlYmHZRUfdAacgw==
-  dependencies:
-    cacache "^10.0.4"
-    find-cache-dir "^1.0.0"
-    schema-utils "^0.4.5"
-    serialize-javascript "^1.4.0"
-    source-map "^0.6.1"
-    uglify-es "^3.3.4"
-    webpack-sources "^1.1.0"
-    worker-farm "^1.5.2"
-
 ultron@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
@@ -8090,7 +8075,7 @@ union@~0.4.3:
   dependencies:
     qs "~2.3.3"
 
-unique-filename@^1.1.0:
+unique-filename@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/unique-filename/-/unique-filename-1.1.1.tgz#1d69769369ada0583103a1e6ae87681b56573230"
   integrity sha512-Vmp0jIp2ln35UTXuryvjzkjGdRyf9b2lTXuSYUiPmzRcl3FDtYqAwOnTJkAngD9SWhnoJzDbTKwaOrZ+STtxNQ==
@@ -8157,12 +8142,12 @@ use@^3.1.0:
   resolved "https://registry.yarnpkg.com/use/-/use-3.1.1.tgz#d50c8cac79a19fbc20f2911f56eb973f4e10070f"
   integrity sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==
 
-useragent@2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/useragent/-/useragent-2.2.1.tgz#cf593ef4f2d175875e8bb658ea92e18a4fd06d8e"
-  integrity sha1-z1k+9PLRdYdei7ZY6pLhik/QbY4=
+useragent@2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/useragent/-/useragent-2.3.0.tgz#217f943ad540cb2128658ab23fc960f6a88c9972"
+  integrity sha512-4AoH4pxuSvHCjqLO04sU6U/uE65BYza8l/KKBS0b0hnUPWi+cQ2BpeTEwejCSx9SPV5/U03nniDTrWx5NrmKdw==
   dependencies:
-    lru-cache "2.2.x"
+    lru-cache "4.1.x"
     tmp "0.0.x"
 
 util-deprecate@~1.0.1:
@@ -8197,7 +8182,7 @@ utils-merge@1.0.1:
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
   integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
-uuid@^3.1.0, uuid@^3.3.2:
+uuid@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
   integrity sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==
@@ -8256,16 +8241,16 @@ watchpack@^1.5.0:
     neo-async "^2.5.0"
 
 wd@^1.4.0:
-  version "1.11.0"
-  resolved "https://registry.yarnpkg.com/wd/-/wd-1.11.0.tgz#b610deea7f79f5a520a573c09e047e42d31433f9"
-  integrity sha512-h2EBfJvmsWocIjOOg5BsHh9IJKrqZDG4Az4jEZhFugEH7sOPcX6feZQ30aFuktqDI0jquarZJmNpA6V0A0Q7Mg==
+  version "1.11.1"
+  resolved "https://registry.yarnpkg.com/wd/-/wd-1.11.1.tgz#21a33e21977ad20522bb189f6529c3b55ac3862c"
+  integrity sha512-XNK6EbOrXF7cG8f3pbps6mb/+xPGZH2r1AL1zGJluGynA/Xt6ip1Tvqj2AkavyDFworreaGXoe+0AP/r7EX9pg==
   dependencies:
     archiver "2.1.1"
     async "2.0.1"
-    lodash "4.17.10"
+    lodash "4.17.11"
     mkdirp "^0.5.1"
     q "1.4.1"
-    request "2.85.0"
+    request "2.88.0"
     vargs "0.1.0"
 
 webpack-dev-middleware@^3.2.0:
@@ -8295,14 +8280,14 @@ webpack-sources@^1.1.0, webpack-sources@^1.3.0:
     source-map "~0.6.1"
 
 webpack@^4.22.0:
-  version "4.22.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.22.0.tgz#b168111e2e7b05f5169ac484e79e62093ec39e0d"
-  integrity sha512-2+3EYFqyhPl12buLQ42QPHEEh8BHn3P9ipRvGRHhdfKJ1u9svhZ3QjhIoEdL5SeIhL5gfOZVbBnartYEabkEsg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.8"
-    "@webassemblyjs/helper-module-context" "1.7.8"
-    "@webassemblyjs/wasm-edit" "1.7.8"
-    "@webassemblyjs/wasm-parser" "1.7.8"
+  version "4.28.1"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.28.1.tgz#d0e2856e75d1224b170bf16c30b6ca9b75f0d958"
+  integrity sha512-qAS7BFyS5iuOZzGJxyDXmEI289h7tVNtJ5XMxf6Tz55J2riOyH42uaEsWF0F32TRaI+54SmI6qRgHM3GzsZ+sQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-module-context" "1.7.11"
+    "@webassemblyjs/wasm-edit" "1.7.11"
+    "@webassemblyjs/wasm-parser" "1.7.11"
     acorn "^5.6.2"
     acorn-dynamic-import "^3.0.0"
     ajv "^6.1.0"
@@ -8320,7 +8305,7 @@ webpack@^4.22.0:
     node-libs-browser "^2.0.0"
     schema-utils "^0.4.4"
     tapable "^1.1.0"
-    uglifyjs-webpack-plugin "^1.2.4"
+    terser-webpack-plugin "^1.1.0"
     watchpack "^1.5.0"
     webpack-sources "^1.3.0"
 
@@ -8372,6 +8357,14 @@ worker-farm@^1.5.2:
   dependencies:
     errno "~0.1.7"
 
+wrap-ansi@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-3.0.1.tgz#288a04d87eda5c286e060dfe8f135ce8d007f8ba"
+  integrity sha1-KIoE2H7aXChuBg3+jxNc6NAH+Lo=
+  dependencies:
+    string-width "^2.1.1"
+    strip-ansi "^4.0.0"
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
@@ -8419,9 +8412,9 @@ yallist@^2.1.2:
   integrity sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=
 
 yallist@^3.0.0, yallist@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
-  integrity sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k=
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.3.tgz#b4b049e314be545e3ce802236d6cd22cd91c3de9"
+  integrity sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==
 
 yauzl@2.4.1:
   version "2.4.1"

From 325fc7693c1574e69fe542f1dbc334030a4b1ec3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 21 Dec 2018 23:55:48 -0500
Subject: [PATCH 670/911] feat(compiler): output codeframe in browser compiler

---
 src/compiler/codeframe.js                     | 48 ++++++++++++
 src/compiler/to-function.js                   | 27 +++++--
 .../web/entry-runtime-with-compiler.js        |  1 +
 test/unit/modules/compiler/codeframe.spec.js  | 74 +++++++++++++++++++
 4 files changed, 144 insertions(+), 6 deletions(-)
 create mode 100644 src/compiler/codeframe.js
 create mode 100644 test/unit/modules/compiler/codeframe.spec.js

diff --git a/src/compiler/codeframe.js b/src/compiler/codeframe.js
new file mode 100644
index 00000000000..66c413064cf
--- /dev/null
+++ b/src/compiler/codeframe.js
@@ -0,0 +1,48 @@
+/* @flow */
+
+const range = 2
+
+export function generateCodeFrame (
+  source: string,
+  start: number = 0,
+  end: number = source.length
+): string {
+  const lines = source.split(/\r?\n/)
+  let count = 0
+  const res = []
+  for (let i = 0; i < lines.length; i++) {
+    count += lines[i].length + 1
+    if (count >= start) {
+      for (let j = i - range; j <= i + range || end > count; j++) {
+        if (j < 0 || j >= lines.length) continue
+        res.push(`${j + 1}${repeat(` `, 3 - String(j + 1).length)}|  ${lines[j]}`)
+        const lineLength = lines[j].length
+        if (j === i) {
+          // push underline
+          const pad = start - (count - lineLength) + 1
+          const length = end > count ? lineLength - pad : end - start
+          res.push(`   |  ` + repeat(` `, pad) + repeat(`^`, length))
+        } else if (j > i) {
+          if (end > count) {
+            const length = Math.min(end - count, lineLength)
+            res.push(`   |  ` + repeat(`^`, length))
+          }
+          count += lineLength + 1
+        }
+      }
+      break
+    }
+  }
+  return res.join('\n')
+}
+
+function repeat (str, n) {
+  let result = ''
+  while (true) { // eslint-disable-line
+    if (n & 1) result += str
+    n >>>= 1
+    if (n <= 0) break
+    str += str
+  }
+  return result
+}
diff --git a/src/compiler/to-function.js b/src/compiler/to-function.js
index 7fe0f13fff1..f607ec351d2 100644
--- a/src/compiler/to-function.js
+++ b/src/compiler/to-function.js
@@ -2,6 +2,7 @@
 
 import { noop, extend } from 'shared/util'
 import { warn as baseWarn, tip } from 'core/util/debug'
+import { generateCodeFrame } from './codeframe'
 
 type CompiledFunctionResult = {
   render: Function;
@@ -61,14 +62,28 @@ export function createCompileToFunctionFn (compile: Function): Function {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn(
-          `Error compiling template:\n\n${template}\n\n` +
-          compiled.errors.map(e => `- ${e}`).join('\n') + '\n',
-          vm
-        )
+        if (options.outputSourceRange) {
+          compiled.errors.forEach(e => {
+            warn(
+              `Error compiling template:\n\n${e.msg}\n\n` +
+              generateCodeFrame(template, e.start, e.end),
+              vm
+            )
+          })
+        } else {
+          warn(
+            `Error compiling template:\n\n${template}\n\n` +
+            compiled.errors.map(e => `- ${e}`).join('\n') + '\n',
+            vm
+          )
+        }
       }
       if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(msg => tip(msg, vm))
+        if (options.outputSourceRange) {
+          compiled.tips.forEach(e => tip(e.msg, vm))
+        } else {
+          compiled.tips.forEach(msg => tip(msg, vm))
+        }
       }
     }
 
diff --git a/src/platforms/web/entry-runtime-with-compiler.js b/src/platforms/web/entry-runtime-with-compiler.js
index 1ebc102df71..2bb46362bf9 100644
--- a/src/platforms/web/entry-runtime-with-compiler.js
+++ b/src/platforms/web/entry-runtime-with-compiler.js
@@ -63,6 +63,7 @@ Vue.prototype.$mount = function (
       }
 
       const { render, staticRenderFns } = compileToFunctions(template, {
+        outputSourceRange: process.env.NODE_ENV !== 'production',
         shouldDecodeNewlines,
         shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
diff --git a/test/unit/modules/compiler/codeframe.spec.js b/test/unit/modules/compiler/codeframe.spec.js
new file mode 100644
index 00000000000..318bcdc84df
--- /dev/null
+++ b/test/unit/modules/compiler/codeframe.spec.js
@@ -0,0 +1,74 @@
+import { generateCodeFrame } from 'compiler/codeframe'
+
+describe('codeframe', () => {
+  const source = `
+<div>
+  <template key="one"></template>
+  <ul>
+    <li v-for="foobar">hi</li>
+  </ul>
+  <template key="two"></template>
+</div>
+    `.trim()
+
+  it('line near top', () => {
+    const keyStart = source.indexOf(`key="one"`)
+    const keyEnd = keyStart + `key="one"`.length
+    expect(generateCodeFrame(source, keyStart, keyEnd)).toBe(`
+1  |  <div>
+2  |    <template key="one"></template>
+   |              ^^^^^^^^^
+3  |    <ul>
+4  |      <li v-for="foobar">hi</li>
+    `.trim())
+  })
+
+  it('line in middle', () => {
+    // should cover 5 lines
+    const forStart = source.indexOf(`v-for=`)
+    const forEnd = forStart + `v-for="foobar"`.length
+    expect(generateCodeFrame(source, forStart, forEnd)).toBe(`
+2  |    <template key="one"></template>
+3  |    <ul>
+4  |      <li v-for="foobar">hi</li>
+   |          ^^^^^^^^^^^^^^
+5  |    </ul>
+6  |    <template key="two"></template>
+    `.trim())
+  })
+
+  it('line near bottom', () => {
+    const keyStart = source.indexOf(`key="two"`)
+    const keyEnd = keyStart + `key="two"`.length
+    expect(generateCodeFrame(source, keyStart, keyEnd)).toBe(`
+4  |      <li v-for="foobar">hi</li>
+5  |    </ul>
+6  |    <template key="two"></template>
+   |              ^^^^^^^^^
+7  |  </div>
+    `.trim())
+  })
+
+  it('multi-line highlights', () => {
+    const source = `
+<div attr="some
+  multiline
+attr
+">
+</div>
+    `.trim()
+
+    const attrStart = source.indexOf(`attr=`)
+    const attrEnd = source.indexOf(`">`) + 1
+    expect(generateCodeFrame(source, attrStart, attrEnd)).toBe(`
+1  |  <div attr="some
+   |       ^^^^^^^^^^
+2  |    multiline
+   |  ^^^^^^^^^^^
+3  |  attr
+   |  ^^^^
+4  |  ">
+   |  ^
+    `.trim())
+  })
+})

From 9c718522bac60d13d3b48d6b6512fccfd5cf8858 Mon Sep 17 00:00:00 2001
From: Pak Youngrok <pak.youngrok@gmail.com>
Date: Thu, 27 Dec 2018 00:02:54 +0900
Subject: [PATCH 671/911] feat(compiler/watch): allow unicode characters in
 component names and watch paths (#8666)

close #8564
---
 src/compiler/parser/html-parser.js               |  5 ++---
 src/core/util/lang.js                            |  9 ++++++++-
 src/core/util/options.js                         |  9 ++++-----
 test/unit/features/instance/methods-data.spec.js | 12 ++++++++++++
 test/unit/features/options/name.spec.js          | 12 ++++++++++--
 5 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index 2e6fa6d324e..1b304fbdb6a 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -11,12 +11,11 @@
 
 import { makeMap, no } from 'shared/util'
 import { isNonPhrasingTag } from 'web/compiler/util'
+import { unicodeLetters } from 'core/util/lang'
 
 // Regular Expressions for parsing tags and attributes
 const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-const ncname = '[a-zA-Z_][\\w\\-\\.]*'
+const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeLetters}]*`
 const qnameCapture = `((?:${ncname}\\:)?${ncname})`
 const startTagOpen = new RegExp(`^<${qnameCapture}`)
 const startTagClose = /^\s*(\/?)>/
diff --git a/src/core/util/lang.js b/src/core/util/lang.js
index 96b8219a045..f90f4ddfd9f 100644
--- a/src/core/util/lang.js
+++ b/src/core/util/lang.js
@@ -1,5 +1,12 @@
 /* @flow */
 
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+export const unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD'
+
 /**
  * Check if a string starts with $ or _
  */
@@ -23,7 +30,7 @@ export function def (obj: Object, key: string, val: any, enumerable?: boolean) {
 /**
  * Parse simple path.
  */
-const bailRE = /[^\w.$]/
+const bailRE = new RegExp(`[^${unicodeLetters}.$]`)
 export function parsePath (path: string): any {
   if (bailRE.test(path)) {
     return
diff --git a/src/core/util/options.js b/src/core/util/options.js
index 5e28a408efc..40c8c34cd97 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -2,9 +2,9 @@
 
 import config from '../config'
 import { warn } from './debug'
-import { nativeWatch } from './env'
 import { set } from '../observer/index'
-import { hasSymbol } from '../util/index'
+import { unicodeLetters } from './lang'
+import { nativeWatch, hasSymbol } from './env'
 
 import {
   ASSET_TYPES,
@@ -264,11 +264,10 @@ function checkComponents (options: Object) {
 }
 
 export function validateComponentName (name: string) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+  if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeLetters}]*$`).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
+      'should conform to valid custom element name in html5 specification.'
     )
   }
   if (isBuiltInTag(name) || config.isReservedTag(name)) {
diff --git a/test/unit/features/instance/methods-data.spec.js b/test/unit/features/instance/methods-data.spec.js
index 1c7fc144995..64050397abe 100644
--- a/test/unit/features/instance/methods-data.spec.js
+++ b/test/unit/features/instance/methods-data.spec.js
@@ -26,6 +26,9 @@ describe('Instance methods data', () => {
         data: {
           a: {
             b: 1
+          },
+          유니코드: {
+            なまえ: 'ok'
           }
         },
         methods: {
@@ -108,6 +111,15 @@ describe('Instance methods data', () => {
       expect(spy).toHaveBeenCalledWith(1)
     })
 
+    it('handler option in string', () => {
+      vm.$watch('유니코드.なまえ', {
+        handler: 'foo',
+        immediate: true
+      })
+      expect(spy.calls.count()).toBe(1)
+      expect(spy).toHaveBeenCalledWith('ok')
+    })
+
     it('warn expression', () => {
       vm.$watch('a + b', spy)
       expect('Watcher only accepts simple dot-delimited paths').toHaveBeenWarned()
diff --git a/test/unit/features/options/name.spec.js b/test/unit/features/options/name.spec.js
index 2f586f85893..051ea403064 100644
--- a/test/unit/features/options/name.spec.js
+++ b/test/unit/features/options/name.spec.js
@@ -15,7 +15,7 @@ describe('Options name', () => {
     })
 
     /* eslint-disable */
-    expect(`Invalid component name: "Hyper*Vue". Component names can only contain alphanumeric characters and the hyphen, and must start with a letter.`)
+    expect(`Invalid component name: "Hyper*Vue".`)
       .toHaveBeenWarned()
     /* eslint-enable */
 
@@ -24,7 +24,7 @@ describe('Options name', () => {
     })
 
     /* eslint-disable */
-    expect(`Invalid component name: "2Cool2BValid". Component names can only contain alphanumeric characters and the hyphen, and must start with a letter.`)
+    expect(`Invalid component name: "2Cool2BValid".`)
       .toHaveBeenWarned()
     /* eslint-enable */
   })
@@ -37,4 +37,12 @@ describe('Options name', () => {
     expect(SuperComponent.options.components['SuperVue']).toEqual(SuperComponent)
     expect(SuperComponent.options.components['super-component']).toEqual(SuperComponent)
   })
+
+  it('should allow all potential custom element name for component name including non-alphanumeric characters', () => {
+    Vue.extend({
+      name: 'my-컴포넌트'
+    })
+
+    expect(`Invalid component name`).not.toHaveBeenWarned()
+  })
 })

From e1abedb9e66b21da8a7e93e175b9dabe334dfebd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 26 Dec 2018 14:12:34 -0500
Subject: [PATCH 672/911] feat(compiler): add whitespace option, deprecate
 preserveWhitespace option

close #9208
---
 flow/compiler.js                              |  3 +-
 packages/vue-template-compiler/README.md      | 46 +++++++++++++++++--
 .../vue-template-compiler/types/index.d.ts    |  1 +
 packages/vue-template-compiler/types/test.ts  |  1 +
 src/compiler/parser/index.js                  | 38 +++++++++++----
 test/unit/modules/compiler/parser.spec.js     | 41 +++++++++++++++++
 6 files changed, 117 insertions(+), 13 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index a7acacee595..de1e2df9a4a 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -6,7 +6,8 @@ declare type CompilerOptions = {
   isUnaryTag?: (tag: string) => ?boolean; // check if a tag is unary for the platform
   canBeLeftOpenTag?: (tag: string) => ?boolean; // check if a tag can be left opened
   isReservedTag?: (tag: string) => ?boolean; // check if a tag is a native for the platform
-  preserveWhitespace?: boolean; // preserve whitespace between elements?
+  preserveWhitespace?: boolean; // preserve whitespace between elements? (Deprecated)
+  whitespace?: 'preserve' | 'condense'; // whitespace handling strategy
   optimize?: boolean; // optimize static content?
 
   // web specific
diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index 41d9b58b858..922622e5d4e 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -33,12 +33,48 @@ Note the returned function code uses `with` and thus cannot be used in strict mo
 
 #### Options
 
-It's possible to hook into the compilation process to support custom template features. **However, beware that by injecting custom compile-time modules, your templates will not work with other build tools built on standard built-in modules, e.g `vue-loader` and `vueify`.**
+- `whitespace`
+  - Type: `string`
+  - Valid values: `'preserve' | 'condense'`
+  - Default: `'preserve'`
 
-The optional `options` object can contain the following:
+  The default value `'preserve'` handles whitespaces as follows:
+
+  - A whitespace-only text node between element tags is condensed into a single space.
+  - All other whitespaces are preserved as-is.
+
+  If set to `'condense'`:
+
+  - A whitespace-only text node between element tags is removed if it contains new lines. Otherwise, it is condensed into a single space.
+  - Consecutive whitespaces inside a non-whitespace-only text node is condensed into a single space.
+
+  Using condense mode will result in smaller compiled code size and slightly improved performance. However, it will produce minor visual layout differences compared to plain HTML in certain cases.
+
+  **This option does not affect the `<pre>` tag.**
+
+  Example:
+
+  ``` html
+  <!-- source -->
+  <div>
+    <span>
+      foo
+    </span>   <span>bar</span>
+  </div>
+
+  <!-- whitespace: 'preserve' -->
+  <div> <span>
+    foo
+    </span> <span>bar</span> </div>
+
+  <!-- whitespace: 'condense' -->
+  <div><span> foo </span> <span>bar</span></div>
+  ```
 
 - `modules`
 
+  It's possible to hook into the compilation process to support custom template features. **However, beware that by injecting custom compile-time modules, your templates will not work with other build tools built on standard built-in modules, e.g `vue-loader` and `vueify`.**
+
   An array of compiler modules. For details on compiler modules, refer to the `ModuleOptions` type in [flow declarations](https://github.com/vuejs/vue/blob/dev/flow/compiler.js#L38-L45) and the [built-in modules](https://github.com/vuejs/vue/tree/dev/src/platforms/web/compiler/modules).
 
 - `directives`
@@ -59,9 +95,11 @@ The optional `options` object can contain the following:
 
   Refer to the implementation of some [built-in compile-time directives](https://github.com/vuejs/vue/tree/dev/src/platforms/web/compiler/directives).
 
-- `preserveWhitespace`
+- `preserveWhitespace` **Deprecated since 2.6**
+  - Type: `boolean`
+  - Default: `true`
 
-  Defaults to `true`. This means the compiled render function preserves all whitespace characters between HTML tags. If set to `false`, whitespace between tags will be ignored. This can result in slightly better performance but may affect layout for inline elements.
+  By default, the compiled render function preserves all whitespace characters between HTML tags. If set to `false`, whitespace between tags will be ignored. This can result in slightly better performance but may affect layout for inline elements.
 
 ---
 
diff --git a/packages/vue-template-compiler/types/index.d.ts b/packages/vue-template-compiler/types/index.d.ts
index 0d1c810ba3f..936b1c91c84 100644
--- a/packages/vue-template-compiler/types/index.d.ts
+++ b/packages/vue-template-compiler/types/index.d.ts
@@ -7,6 +7,7 @@ interface CompilerOptions {
   modules?: ModuleOptions[];
   directives?: Record<string, DirectiveFunction>;
   preserveWhitespace?: boolean;
+  whitespace?: 'preserve' | 'condense';
 }
 
 interface CompiledResult {
diff --git a/packages/vue-template-compiler/types/test.ts b/packages/vue-template-compiler/types/test.ts
index be00815c78f..cf2c1be6b9b 100644
--- a/packages/vue-template-compiler/types/test.ts
+++ b/packages/vue-template-compiler/types/test.ts
@@ -10,6 +10,7 @@ import {
 // check compile options
 const compiled = compile("<div>hi</div>", {
   preserveWhitespace: false,
+  whitespace: 'condense',
   modules: [
     {
       preTransformNode: el => el,
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 8900a1d90f9..55b8da7cf4b 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -30,6 +30,9 @@ const argRE = /:(.*)$/
 export const bindRE = /^:|^v-bind:/
 const modifierRE = /\.[^.]+/g
 
+const lineBreakRE = /[\r\n]/
+const whitespaceRE = /\s+/g
+
 const decodeHTMLCached = cached(he.decode)
 
 // configurable state
@@ -79,6 +82,7 @@ export function parse (
 
   const stack = []
   const preserveWhitespace = options.preserveWhitespace !== false
+  const whitespaceOption = options.whitespace
   let root
   let currentParent
   let inVPre = false
@@ -235,11 +239,13 @@ export function parse (
     },
 
     end (tag, start, end) {
-      // remove trailing whitespace
       const element = stack[stack.length - 1]
-      const lastNode = element.children[element.children.length - 1]
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop()
+      if (!inPre) {
+        // remove trailing whitespace node
+        const lastNode = element.children[element.children.length - 1]
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+          element.children.pop()
+        }
       }
       // pop stack
       stack.length -= 1
@@ -276,11 +282,27 @@ export function parse (
         return
       }
       const children = currentParent.children
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : ''
+      if (inPre || text.trim()) {
+        text = isTextTag(currentParent) ? text : decodeHTMLCached(text)
+      } else if (!children.length) {
+        // remove the whitespace-only node right after an opening tag
+        text = ''
+      } else if (whitespaceOption) {
+        if (whitespaceOption === 'condense') {
+          // in condense mode, remove the whitespace node if it contains
+          // line break, otherwise condense to a single space
+          text = lineBreakRE.test(text) ? '' : ' '
+        } else {
+          text = ' '
+        }
+      } else {
+        text = preserveWhitespace ? ' ' : ''
+      }
       if (text) {
+        if (whitespaceOption === 'condense') {
+          // condense consecutive whitespaces into single space
+          text = text.replace(whitespaceRE, ' ')
+        }
         let res
         let child: ?ASTNode
         if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index efa5daf4eb3..fd67677948f 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -757,4 +757,45 @@ describe('parser', () => {
     const ast = parse(`<p>{{\r\nmsg\r\n}}</p>`, baseOptions)
     expect(ast.children[0].expression).toBe('_s(msg)')
   })
+
+  it('preserveWhitespace: false', () => {
+    const options = extend({
+      preserveWhitespace: false
+    }, baseOptions)
+
+     const ast = parse('<p>\n  Welcome to <b>Vue.js</b>    <i>world</i>  \n  <span>.\n  Have fun!\n</span></p>', options)
+    expect(ast.tag).toBe('p')
+    expect(ast.children.length).toBe(4)
+    expect(ast.children[0].type).toBe(3)
+    expect(ast.children[0].text).toBe('\n  Welcome to ')
+    expect(ast.children[1].tag).toBe('b')
+    expect(ast.children[1].children[0].text).toBe('Vue.js')
+    expect(ast.children[2].tag).toBe('i')
+    expect(ast.children[2].children[0].text).toBe('world')
+    expect(ast.children[3].tag).toBe('span')
+    expect(ast.children[3].children[0].text).toBe('.\n  Have fun!\n')
+  })
+
+  it(`whitespace: 'condense'`, () => {
+    const options = extend({
+      whitespace: 'condense',
+      // should be ignored when whitespace is specified
+      preserveWhitespace: false
+    }, baseOptions)
+    const ast = parse('<p>\n  Welcome to <b>Vue.js</b>    <i>world</i>  \n  <span>.\n  Have fun!\n</span></p>', options)
+    expect(ast.tag).toBe('p')
+    expect(ast.children.length).toBe(5)
+    expect(ast.children[0].type).toBe(3)
+    expect(ast.children[0].text).toBe(' Welcome to ')
+    expect(ast.children[1].tag).toBe('b')
+    expect(ast.children[1].children[0].text).toBe('Vue.js')
+    expect(ast.children[2].type).toBe(3)
+    // should condense inline whitespace into single space
+    expect(ast.children[2].text).toBe(' ')
+    expect(ast.children[3].tag).toBe('i')
+    expect(ast.children[3].children[0].text).toBe('world')
+    // should have removed the whitespace node between tags that contains newlines
+    expect(ast.children[4].tag).toBe('span')
+    expect(ast.children[4].children[0].text).toBe('. Have fun! ')
+  })
 })

From d40eb9c2880c8dd27fedb9fbc508823a15742274 Mon Sep 17 00:00:00 2001
From: Jeremy Dubois <mymyoux@gmail.com>
Date: Wed, 26 Dec 2018 21:38:19 +0100
Subject: [PATCH 673/911] feat(v-for): support iterables in v-for (#8179)

---
 .../instance/render-helpers/render-list.js    |  22 +-
 test/unit/features/directives/for.spec.js     | 200 ++++++++++++++++++
 2 files changed, 216 insertions(+), 6 deletions(-)

diff --git a/src/core/instance/render-helpers/render-list.js b/src/core/instance/render-helpers/render-list.js
index 040391c0f30..cf68742403a 100644
--- a/src/core/instance/render-helpers/render-list.js
+++ b/src/core/instance/render-helpers/render-list.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { isObject, isDef } from 'core/util/index'
+import { isObject, isDef, hasSymbol } from 'core/util/index'
 
 /**
  * Runtime helper for rendering v-for lists.
@@ -25,11 +25,21 @@ export function renderList (
       ret[i] = render(i + 1, i)
     }
   } else if (isObject(val)) {
-    keys = Object.keys(val)
-    ret = new Array(keys.length)
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i]
-      ret[i] = render(val[key], key, i)
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = []
+      const iterator: Iterator<any> = val[Symbol.iterator]()
+      let result = iterator.next()
+      while (!result.done) {
+        ret.push(render(result.value, ret.length))
+        result = iterator.next()
+      }
+    } else {
+      keys = Object.keys(val)
+      ret = new Array(keys.length)
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i]
+        ret[i] = render(val[key], key, i)
+      }
     }
   }
   if (!isDef(ret)) {
diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index 71b4b8ba459..12921edddc1 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -1,4 +1,5 @@
 import Vue from 'vue'
+import { hasSymbol } from 'core/util/env'
 
 describe('Directive v-for', () => {
   it('should render array of primitive values', done => {
@@ -123,6 +124,205 @@ describe('Directive v-for', () => {
     }).then(done)
   })
 
+  if (hasSymbol) {
+    it('should render iterable of primitive values', done => {
+      const iterable = {
+        models: ['a', 'b', 'c'],
+        index: 0,
+        [Symbol.iterator] () {
+          const iterator = {
+            index: 0,
+            models: this.models,
+            next () {
+              if (this.index < this.models.length) {
+                return { value: this.models[this.index++] }
+              } else {
+                return { done: true }
+              }
+            }
+          }
+          return iterator
+        }
+      }
+      const vm = new Vue({
+        template: `
+          <div>
+            <span v-for="item in list">{{item}}</span>
+          </div>
+        `,
+        data: {
+          list: iterable
+        }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe('<span>a</span><span>b</span><span>c</span>')
+      Vue.set(vm.list.models, 0, 'd')
+      waitForUpdate(() => {
+        expect(vm.$el.innerHTML).toBe('<span>d</span><span>b</span><span>c</span>')
+        vm.list.models.push('d')
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>d</span><span>b</span><span>c</span><span>d</span>')
+        vm.list.models.splice(1, 2)
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>d</span><span>d</span>')
+        vm.list.models = ['x', 'y']
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>x</span><span>y</span>')
+      }).then(done)
+    })
+
+    it('should render iterable of primitive values with index', done => {
+      const iterable = {
+        models: ['a', 'b', 'c'],
+        index: 0,
+        [Symbol.iterator] () {
+          const iterator = {
+            index: 0,
+            models: this.models,
+            next () {
+              if (this.index < this.models.length) {
+                return { value: this.models[this.index++] }
+              } else {
+                return { done: true }
+              }
+            }
+          }
+          return iterator
+        }
+      }
+
+      const vm = new Vue({
+        template: `
+          <div>
+            <span v-for="(item, i) in list">{{i}}-{{item}}</span>
+          </div>
+        `,
+        data: {
+          list: iterable
+        }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe('<span>0-a</span><span>1-b</span><span>2-c</span>')
+      Vue.set(vm.list.models, 0, 'd')
+      waitForUpdate(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-d</span><span>1-b</span><span>2-c</span>')
+        vm.list.models.push('d')
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-d</span><span>1-b</span><span>2-c</span><span>3-d</span>')
+        vm.list.models.splice(1, 2)
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-d</span><span>1-d</span>')
+        vm.list.models = ['x', 'y']
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-x</span><span>1-y</span>')
+      }).then(done)
+    })
+
+    it('should render iterable of object values', done => {
+      const iterable = {
+        models: [
+          { value: 'a' },
+          { value: 'b' },
+          { value: 'c' }
+        ],
+        index: 0,
+        [Symbol.iterator] () {
+          const iterator = {
+            index: 0,
+            models: this.models,
+            next () {
+              if (this.index < this.models.length) {
+                return { value: this.models[this.index++] }
+              } else {
+                return { done: true }
+              }
+            }
+          }
+          return iterator
+        }
+      }
+
+      const vm = new Vue({
+        template: `
+          <div>
+            <span v-for="item in list">{{item.value}}</span>
+          </div>
+        `,
+        data: {
+          list: iterable
+        }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe('<span>a</span><span>b</span><span>c</span>')
+      Vue.set(vm.list.models, 0, { value: 'd' })
+      waitForUpdate(() => {
+        expect(vm.$el.innerHTML).toBe('<span>d</span><span>b</span><span>c</span>')
+        vm.list.models[0].value = 'e'
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>e</span><span>b</span><span>c</span>')
+        vm.list.models.push({})
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>e</span><span>b</span><span>c</span><span></span>')
+        vm.list.models.splice(1, 2)
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>e</span><span></span>')
+        vm.list.models = [{ value: 'x' }, { value: 'y' }]
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>x</span><span>y</span>')
+      }).then(done)
+    })
+
+    it('should render iterable of object values with index', done => {
+      const iterable = {
+        models: [
+          { value: 'a' },
+          { value: 'b' },
+          { value: 'c' }
+        ],
+        index: 0,
+        [Symbol.iterator] () {
+          const iterator = {
+            index: 0,
+            models: this.models,
+            next () {
+              if (this.index < this.models.length) {
+                return { value: this.models[this.index++] }
+              } else {
+                return { done: true }
+              }
+            }
+          }
+          return iterator
+        }
+      }
+
+      const vm = new Vue({
+        template: `
+          <div>
+            <span v-for="(item, i) in list">{{i}}-{{item.value}}</span>
+          </div>
+        `,
+        data: {
+          list: iterable
+        }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe('<span>0-a</span><span>1-b</span><span>2-c</span>')
+      Vue.set(vm.list.models, 0, { value: 'd' })
+      waitForUpdate(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-d</span><span>1-b</span><span>2-c</span>')
+        vm.list.models[0].value = 'e'
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-e</span><span>1-b</span><span>2-c</span>')
+        vm.list.models.push({})
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-e</span><span>1-b</span><span>2-c</span><span>3-</span>')
+        vm.list.models.splice(1, 2)
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-e</span><span>1-</span>')
+        vm.list.models = [{ value: 'x' }, { value: 'y' }]
+      }).then(() => {
+        expect(vm.$el.innerHTML).toBe('<span>0-x</span><span>1-y</span>')
+      }).then(done)
+    })
+  }
+
   it('should render an Object', done => {
     const vm = new Vue({
       template: `

From 85d8ad64aa864f4c0800fbb9a895432b5edfdfe3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 26 Dec 2018 15:38:52 -0500
Subject: [PATCH 674/911] build: use headless chrome by default for unit tests

---
 package.json                    |  3 ++-
 test/unit/karma.cover.config.js |  6 ++++--
 test/unit/karma.dev.config.js   |  6 ++++--
 yarn.lock                       | 32 +++++++++++++++++++++++++++++---
 4 files changed, 39 insertions(+), 8 deletions(-)

diff --git a/package.json b/package.json
index 178785d3d92..da3d1ae6209 100644
--- a/package.json
+++ b/package.json
@@ -123,6 +123,7 @@
     "nightwatch": "^0.9.16",
     "nightwatch-helpers": "^1.2.0",
     "phantomjs-prebuilt": "^2.1.14",
+    "puppeteer": "^1.11.0",
     "resolve": "^1.3.3",
     "rollup": "^0.68.1",
     "rollup-plugin-alias": "^1.3.1",
@@ -135,8 +136,8 @@
     "selenium-server": "^2.53.1",
     "serialize-javascript": "^1.3.0",
     "shelljs": "^0.8.1",
-    "typescript": "^3.1.3",
     "terser": "^3.10.2",
+    "typescript": "^3.1.3",
     "webpack": "^4.22.0",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
diff --git a/test/unit/karma.cover.config.js b/test/unit/karma.cover.config.js
index e1801548f78..ee03884eec9 100644
--- a/test/unit/karma.cover.config.js
+++ b/test/unit/karma.cover.config.js
@@ -1,8 +1,10 @@
 const base = require('./karma.base.config.js')
 
+process.env.CHROME_BIN = require('puppeteer').executablePath()
+
 module.exports = function (config) {
   const options = Object.assign(base, {
-    browsers: ['PhantomJS'],
+    browsers: ['ChromeHeadless'],
     reporters: ['mocha', 'coverage'],
     coverageReporter: {
       reporters: [
@@ -13,7 +15,7 @@ module.exports = function (config) {
     singleRun: true,
     plugins: base.plugins.concat([
       'karma-coverage',
-      'karma-phantomjs-launcher'
+      'karma-chrome-launcher'
     ])
   })
 
diff --git a/test/unit/karma.dev.config.js b/test/unit/karma.dev.config.js
index f9dfc1b6722..b9b01b2200c 100644
--- a/test/unit/karma.dev.config.js
+++ b/test/unit/karma.dev.config.js
@@ -1,11 +1,13 @@
 const base = require('./karma.base.config.js')
 
+process.env.CHROME_BIN = require('puppeteer').executablePath()
+
 module.exports = function (config) {
   config.set(Object.assign(base, {
-    browsers: ['PhantomJS'],
+    browsers: ['ChromeHeadless'],
     reporters: ['progress'],
     plugins: base.plugins.concat([
-      'karma-phantomjs-launcher'
+      'karma-chrome-launcher'
     ])
   }))
 }
diff --git a/yarn.lock b/yarn.lock
index 4bf225d8ccd..71f33d245c8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3364,7 +3364,7 @@ extglob@^2.0.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-extract-zip@^1.6.5, extract-zip@^1.6.7:
+extract-zip@^1.6.5, extract-zip@^1.6.6, extract-zip@^1.6.7:
   version "1.6.7"
   resolved "https://registry.yarnpkg.com/extract-zip/-/extract-zip-1.6.7.tgz#a840b4b8af6403264c8db57f4f1a74333ef81fe9"
   integrity sha1-qEC0uK9kAyZMjbV/Txp0Mz74H+k=
@@ -5596,7 +5596,7 @@ mime@^1.6.0:
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
   integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
 
-mime@^2.3.1:
+mime@^2.0.3, mime@^2.3.1:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-2.4.0.tgz#e051fd881358585f3279df333fe694da0bcffdd6"
   integrity sha512-ikBcWwyqXQSHKtciCcctu9YfPbFYZ4+gbHEmE0Q8jzcTYQg5dHCr3g2wwAZjPoJfQVXZq6KXAjpXOTf5/cjT7w==
@@ -6527,7 +6527,7 @@ progress@^1.1.8:
   resolved "https://registry.yarnpkg.com/progress/-/progress-1.1.8.tgz#e260c78f6161cdd9b0e56cc3e0a85de17c7a57be"
   integrity sha1-4mDHj2Fhzdmw5WzD4Khd4Xx6V74=
 
-progress@^2.0.0:
+progress@^2.0.0, progress@^2.0.1:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.3.tgz#7e8cf8d8f5b8f239c1bc68beb4eb78567d572ef8"
   integrity sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==
@@ -6551,6 +6551,11 @@ proxy-agent@2.0.0:
     pac-proxy-agent "1"
     socks-proxy-agent "2"
 
+proxy-from-env@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.0.0.tgz#33c50398f70ea7eb96d21f7b817630a55791c7ee"
+  integrity sha1-M8UDmPcOp+uW0h97gXYwpVeRx+4=
+
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
@@ -6618,6 +6623,20 @@ punycode@^2.1.0:
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
   integrity sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==
 
+puppeteer@^1.11.0:
+  version "1.11.0"
+  resolved "https://registry.yarnpkg.com/puppeteer/-/puppeteer-1.11.0.tgz#63cdbe12b07275cd6e0b94bce41f3fcb20305770"
+  integrity sha512-iG4iMOHixc2EpzqRV+pv7o3GgmU2dNYEMkvKwSaQO/vMZURakwSOn/EYJ6OIRFYOque1qorzIBvrytPIQB3YzQ==
+  dependencies:
+    debug "^4.1.0"
+    extract-zip "^1.6.6"
+    https-proxy-agent "^2.2.1"
+    mime "^2.0.3"
+    progress "^2.0.1"
+    proxy-from-env "^1.0.0"
+    rimraf "^2.6.1"
+    ws "^6.1.0"
+
 q@1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
@@ -8377,6 +8396,13 @@ write@^0.2.1:
   dependencies:
     mkdirp "^0.5.1"
 
+ws@^6.1.0:
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-6.1.2.tgz#3cc7462e98792f0ac679424148903ded3b9c3ad8"
+  integrity sha512-rfUqzvz0WxmSXtJpPMX2EeASXabOrSMk1ruMOV3JBTBjo4ac2lDjGGsbQSyxj8Odhw5fBib8ZKEjDNvgouNKYw==
+  dependencies:
+    async-limiter "~1.0.0"
+
 ws@~3.3.1:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"

From 7a9290421d511cca66a6563f910beb1fab1b33ee Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 26 Dec 2018 15:48:19 -0500
Subject: [PATCH 675/911] build: fix chrome headless on CI

---
 test/unit/karma.cover.config.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/test/unit/karma.cover.config.js b/test/unit/karma.cover.config.js
index ee03884eec9..639cec462cb 100644
--- a/test/unit/karma.cover.config.js
+++ b/test/unit/karma.cover.config.js
@@ -4,7 +4,13 @@ process.env.CHROME_BIN = require('puppeteer').executablePath()
 
 module.exports = function (config) {
   const options = Object.assign(base, {
-    browsers: ['ChromeHeadless'],
+    browsers: ['ChromeHeadlessCI'],
+    customLaunchers: {
+      'ChromeHeadlessCI': {
+        base: 'ChromeHeadless',
+        flags: ['--no-sandbox']
+      }
+    },
     reporters: ['mocha', 'coverage'],
     coverageReporter: {
       reporters: [

From d747469e1ae26190d364e5cc9c8112d3d865a0b9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 26 Dec 2018 16:02:50 -0500
Subject: [PATCH 676/911] test: test case for v-for native collection support

---
 test/unit/features/directives/for.spec.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/test/unit/features/directives/for.spec.js b/test/unit/features/directives/for.spec.js
index 12921edddc1..eb28b09ca8d 100644
--- a/test/unit/features/directives/for.spec.js
+++ b/test/unit/features/directives/for.spec.js
@@ -125,6 +125,26 @@ describe('Directive v-for', () => {
   })
 
   if (hasSymbol) {
+    it('should render native iterables (Map)', () => {
+      const vm = new Vue({
+        template: `<div><span v-for="[key, val] in list">{{key}},{{val}}</span></div>`,
+        data: {
+          list: new Map([[1, 'foo'], [2, 'bar']])
+        }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`<span>1,foo</span><span>2,bar</span>`)
+    })
+
+    it('should render native iterables (Set)', () => {
+      const vm = new Vue({
+        template: `<div><span v-for="val in list">{{val}}</span></div>`,
+        data: {
+          list: new Set([1, 2, 3])
+        }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`<span>1</span><span>2</span><span>3</span>`)
+    })
+
     it('should render iterable of primitive values', done => {
       const iterable = {
         models: ['a', 'b', 'c'],

From c7c13c2a156269d29fd9c9f8f6a3e53a2f2cac3d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 26 Dec 2018 17:17:30 -0500
Subject: [PATCH 677/911] fix(scoped-slots): ensure $scopedSlots calls always
 return Arrays

Also allow render functions to return an Array of a single element.
Close #8056
---
 .../instance/render-helpers/resolve-slots.js  |  7 ++--
 src/core/instance/render.js                   |  7 +++-
 src/core/vdom/create-functional-component.js  |  3 +-
 .../vdom/helpers/normalize-scoped-slots.js    | 25 +++++++++++++
 .../component/component-scoped-slot.spec.js   | 36 ++++++++++++++-----
 .../features/component/component-slot.spec.js |  4 +--
 6 files changed, 67 insertions(+), 15 deletions(-)
 create mode 100644 src/core/vdom/helpers/normalize-scoped-slots.js

diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 02f007cf233..34d8ce26d82 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -55,10 +55,11 @@ export function resolveScopedSlots (
 ): { [key: string]: Function } {
   res = res || {}
   for (let i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res)
+    const slot = fns[i]
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, res)
     } else {
-      res[fns[i].key] = fns[i].fn
+      res[slot.key] = slot.fn
     }
   }
   return res
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index def4be6db68..3139f81a337 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -11,6 +11,7 @@ import {
 import { createElement } from '../vdom/create-element'
 import { installRenderHelpers } from './render-helpers/index'
 import { resolveSlots } from './render-helpers/resolve-slots'
+import { normalizeScopedSlots } from '../vdom/helpers/normalize-scoped-slots'
 import VNode, { createEmptyVNode } from '../vdom/vnode'
 
 import { isUpdatingChildComponent } from './lifecycle'
@@ -63,7 +64,7 @@ export function renderMixin (Vue: Class<Component>) {
     const { render, _parentVnode } = vm.$options
 
     if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject
+      vm.$scopedSlots = normalizeScopedSlots(_parentVnode.data.scopedSlots)
     }
 
     // set parent vnode. this allows render functions to have access
@@ -89,6 +90,10 @@ export function renderMixin (Vue: Class<Component>) {
         vnode = vm._vnode
       }
     }
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0]
+    }
     // return empty vnode in case the render function errored out
     if (!(vnode instanceof VNode)) {
       if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index de3b1873517..92ebe7140f1 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -5,6 +5,7 @@ import { createElement } from './create-element'
 import { resolveInject } from '../instance/inject'
 import { normalizeChildren } from '../vdom/helpers/normalize-children'
 import { resolveSlots } from '../instance/render-helpers/resolve-slots'
+import { normalizeScopedSlots } from '../vdom/helpers/normalize-scoped-slots'
 import { installRenderHelpers } from '../instance/render-helpers/index'
 
 import {
@@ -56,7 +57,7 @@ export function FunctionalRenderContext (
     this.$options = options
     // pre-resolve slots for renderSlot()
     this.$slots = this.slots()
-    this.$scopedSlots = data.scopedSlots || emptyObject
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots)
   }
 
   if (options._scopeId) {
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
new file mode 100644
index 00000000000..3fa2998ac5b
--- /dev/null
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -0,0 +1,25 @@
+/* @flow */
+
+import { emptyObject } from 'core/util/index'
+
+export function normalizeScopedSlots (slots: { [key: string]: Function }) {
+  if (!slots) {
+    return emptyObject
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    const res = {}
+    for (const key in slots) {
+      res[key] = normalizeScopedSlot(slots[key])
+    }
+    res._normalized = true
+    return res
+  }
+}
+
+function normalizeScopedSlot(fn: Function) {
+  return scope => {
+    const res = fn(scope)
+    return Array.isArray(res) ? res : res ? [res] : res
+  }
+}
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 4fab0127ea7..c327141bd67 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -395,11 +395,9 @@ describe('Component scoped slot', () => {
             return { msg: 'hello' }
           },
           render (h) {
-            return h('div', [
-              this.$scopedSlots.item({
-                text: this.msg
-              })
-            ])
+            return h('div', this.$scopedSlots.item({
+              text: this.msg
+            }))
           }
         }
       }
@@ -425,9 +423,7 @@ describe('Component scoped slot', () => {
             return { msg: 'hello' }
           },
           render (h) {
-            return h('div', [
-              this.$scopedSlots.default({ msg: this.msg })
-            ])
+            return h('div', this.$scopedSlots.default({ msg: this.msg }))
           }
         }
       }
@@ -435,6 +431,30 @@ describe('Component scoped slot', () => {
     expect(vm.$el.innerHTML).toBe('<span>hello</span>')
   })
 
+  it('render function usage (default, as root)', () => {
+    const vm = new Vue({
+      render (h) {
+        return h('test', [
+          props => h('span', [props.msg])
+        ])
+      },
+      components: {
+        test: {
+          data () {
+            return { msg: 'hello' }
+          },
+          render (h) {
+            const res = this.$scopedSlots.default({ msg: this.msg })
+            // all scoped slots should be normalized into arrays
+            expect(Array.isArray(res)).toBe(true)
+            return res
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$el.outerHTML).toBe('<span>hello</span>')
+  })
+
   // #4779
   it('should support dynamic slot target', done => {
     const Child = {
diff --git a/test/unit/features/component/component-slot.spec.js b/test/unit/features/component/component-slot.spec.js
index e9ed31a00c1..3e5fa883978 100644
--- a/test/unit/features/component/component-slot.spec.js
+++ b/test/unit/features/component/component-slot.spec.js
@@ -327,11 +327,11 @@ describe('Component slot', () => {
 
   it('warn if user directly returns array', () => {
     new Vue({
-      template: '<test><div></div></test>',
+      template: '<test><div slot="foo"></div><div slot="foo"></div></test>',
       components: {
         test: {
           render () {
-            return this.$slots.default
+            return this.$slots.foo
           }
         }
       }

From ce35159d6d6e9c3607bd3232e386b5b994d0ec49 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 26 Dec 2018 17:22:32 -0500
Subject: [PATCH 678/911] chore: fix types

---
 src/core/vdom/helpers/normalize-scoped-slots.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 3fa2998ac5b..d58a6c62a7a 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -2,7 +2,7 @@
 
 import { emptyObject } from 'core/util/index'
 
-export function normalizeScopedSlots (slots: { [key: string]: Function }) {
+export function normalizeScopedSlots (slots: { [key: string]: Function } | void): any {
   if (!slots) {
     return emptyObject
   } else if (slots._normalized) {

From c117e8f25efeaa46565e7bb7e3c055d48f7f5117 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 3 Jan 2019 10:18:47 -0500
Subject: [PATCH 679/911] chore: update backers

---
 BACKERS.md | 36 ++++++++++++++++++++----------------
 README.md  | 12 ++++++------
 2 files changed, 26 insertions(+), 22 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 2f493dad4dd..4139aea5a23 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -183,20 +183,20 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://courses.wilderminds.com/p/vue-js-by-example" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/wilderminds.png">
+        <a href="https://devsquad.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://devsquad.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
+        <a href="https://www.inkoop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.inkoop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
+        <a href="https://www.firesticktricks.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firesticks.png">
         </a>
       </td>
     </tr><tr></tr>
@@ -231,6 +231,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dopamine.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://gridsome.org/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/gridsome.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
@@ -323,7 +328,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - errorrik 
 - Alex Balashov
 - Konstantin Levinski
-- Evan Leonardi
 - Ernest Sim
 - Blaise Laflamme
 - Dilettant 
@@ -350,7 +354,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Barbara Liau
 - 4 
 - Jarek Tkaczyk
-- David Hess
 - Niannian Modisette
 - Ivan Sieder
 - Matt Jones
@@ -359,7 +362,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Guy Gavergun
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
-- Chengzhi Yin
 - Zoran Knezevic
 - Pierre Vanhulst
 - Jon Hobbs-Smith
@@ -373,7 +375,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Samuel Smith
 - Tyler Scott
 - Thong Yong Jun
-- Tai Shi Lgin
 - Matias Verdier
 - Jamie McElwain
 - Vivekanandhan Natarajan
@@ -389,7 +390,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - RADD Creative
 - Rua Cura D'ars
 - Richard Simpson
-- Alok Pant
 - Jessie Hernandez
 - Eric Fong
 - Aparajita Fishman
@@ -411,30 +411,34 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Andy Foster
 - Joe Cochran
 - Matt Sencenbaugh
-- The Commission Cafe, LLC.
 - Daniel Mattingley
 - Teon Ooi
 - Hannes Kochniß
-- Juan Bermudez
-- Alberto T. Payero Mota
 - Colt Borg
 - Chris Calo
-- Milan Zivkovic
 - Christo Crampton
 - Johnny Austin
 - Aaron Hung
 - Soichiro Isshiki
 - Tom Meagher
-- Rob Mellett
 - Abraham Arango
 - Marko Bošković
 - Ed Linklater
 - Garion Herman
 - Chris Bemister
 - Anfrew Willis
+- Shawn Wildermuth
 - Carlos Adrián
 - Timothy J Bass
 - Yusuke Kawabata
+- Nick Dandakis
+- JI CAI
+- 龙腾道 
+- Milos Stojanovic
+- Matkovsky Peter
+- shimbaco 
+- Princeyesuraj Edward
+- Kenneth Crawford
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 3cb536cfa84..f91baf9775a 100644
--- a/README.md
+++ b/README.md
@@ -188,20 +188,20 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://courses.wilderminds.com/p/vue-js-by-example" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/wilderminds.png">
+        <a href="https://devsquad.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://devsquad.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
+        <a href="https://www.inkoop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.inkoop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
+        <a href="https://www.firesticktricks.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firesticks.png">
         </a>
       </td>
     </tr><tr></tr>

From 05fbc3602f2a0c4d4989721f1dbbd9c55f1d8560 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 3 Jan 2019 10:18:47 -0500
Subject: [PATCH 680/911] chore: update backers

---
 BACKERS.md | 36 ++++++++++++++++++++----------------
 README.md  | 12 ++++++------
 2 files changed, 26 insertions(+), 22 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 2f493dad4dd..4139aea5a23 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -183,20 +183,20 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://courses.wilderminds.com/p/vue-js-by-example" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/wilderminds.png">
+        <a href="https://devsquad.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://devsquad.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
+        <a href="https://www.inkoop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.inkoop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
+        <a href="https://www.firesticktricks.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firesticks.png">
         </a>
       </td>
     </tr><tr></tr>
@@ -231,6 +231,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dopamine.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://gridsome.org/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/gridsome.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
@@ -323,7 +328,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - errorrik 
 - Alex Balashov
 - Konstantin Levinski
-- Evan Leonardi
 - Ernest Sim
 - Blaise Laflamme
 - Dilettant 
@@ -350,7 +354,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Barbara Liau
 - 4 
 - Jarek Tkaczyk
-- David Hess
 - Niannian Modisette
 - Ivan Sieder
 - Matt Jones
@@ -359,7 +362,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Guy Gavergun
 - Intevation GmbH
 - Luiz Eduardo  Tanure Bacelar
-- Chengzhi Yin
 - Zoran Knezevic
 - Pierre Vanhulst
 - Jon Hobbs-Smith
@@ -373,7 +375,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Samuel Smith
 - Tyler Scott
 - Thong Yong Jun
-- Tai Shi Lgin
 - Matias Verdier
 - Jamie McElwain
 - Vivekanandhan Natarajan
@@ -389,7 +390,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - RADD Creative
 - Rua Cura D'ars
 - Richard Simpson
-- Alok Pant
 - Jessie Hernandez
 - Eric Fong
 - Aparajita Fishman
@@ -411,30 +411,34 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Andy Foster
 - Joe Cochran
 - Matt Sencenbaugh
-- The Commission Cafe, LLC.
 - Daniel Mattingley
 - Teon Ooi
 - Hannes Kochniß
-- Juan Bermudez
-- Alberto T. Payero Mota
 - Colt Borg
 - Chris Calo
-- Milan Zivkovic
 - Christo Crampton
 - Johnny Austin
 - Aaron Hung
 - Soichiro Isshiki
 - Tom Meagher
-- Rob Mellett
 - Abraham Arango
 - Marko Bošković
 - Ed Linklater
 - Garion Herman
 - Chris Bemister
 - Anfrew Willis
+- Shawn Wildermuth
 - Carlos Adrián
 - Timothy J Bass
 - Yusuke Kawabata
+- Nick Dandakis
+- JI CAI
+- 龙腾道 
+- Milos Stojanovic
+- Matkovsky Peter
+- shimbaco 
+- Princeyesuraj Edward
+- Kenneth Crawford
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>
diff --git a/README.md b/README.md
index 3cb536cfa84..f91baf9775a 100644
--- a/README.md
+++ b/README.md
@@ -188,20 +188,20 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://courses.wilderminds.com/p/vue-js-by-example" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/wilderminds.png">
+        <a href="https://devsquad.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://devsquad.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
+        <a href="https://www.inkoop.in/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.inkoop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
+        <a href="https://www.firesticktricks.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firesticks.png">
         </a>
       </td>
     </tr><tr></tr>

From 75a2b4cd42bcb864d37c3d4a12d984e746eb3a5f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 4 Jan 2019 14:54:44 -0500
Subject: [PATCH 681/911] chore: update sponsors

---
 BACKERS.md | 36 ++++++++++++++++++------------------
 README.md  | 36 ++++++++++++++++++------------------
 2 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 4139aea5a23..78b783482af 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -141,25 +141,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://teamextension.io/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="http://aaha.co/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -167,6 +155,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://webdock.io/en" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
@@ -187,8 +177,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.inkoop.in/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
@@ -200,6 +188,18 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://github.com/marcus-hiles" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcushiles.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://isleofcode.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/ioc.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index f91baf9775a..0f3999237c3 100644
--- a/README.md
+++ b/README.md
@@ -146,25 +146,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://teamextension.io/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="http://aaha.co/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -172,6 +160,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://webdock.io/en" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
@@ -192,8 +182,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.inkoop.in/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
@@ -205,6 +193,18 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://github.com/marcus-hiles" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcushiles.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://isleofcode.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/ioc.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From ab2b1f16f4fa2c966d9b7d89d36aa7125c6802c5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 4 Jan 2019 14:54:44 -0500
Subject: [PATCH 682/911] chore: update sponsors

---
 BACKERS.md | 36 ++++++++++++++++++------------------
 README.md  | 36 ++++++++++++++++++------------------
 2 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 4139aea5a23..78b783482af 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -141,25 +141,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://teamextension.io/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="http://aaha.co/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -167,6 +155,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://webdock.io/en" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
@@ -187,8 +177,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.inkoop.in/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
@@ -200,6 +188,18 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://github.com/marcus-hiles" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcushiles.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://isleofcode.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/ioc.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index f91baf9775a..0f3999237c3 100644
--- a/README.md
+++ b/README.md
@@ -146,25 +146,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://teamextension.io/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/teamextension.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="http://aaha.co/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/aaha.png">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -172,6 +160,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://webdock.io/en" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
@@ -192,8 +182,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.inkoop.in/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
@@ -205,6 +193,18 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://github.com/marcus-hiles" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcushiles.png">
+        </a>
+      </td>
+      <td align="center" valign="middle">
+        <a href="https://isleofcode.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/ioc.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From bbfeb039f37d8d040bde318fe904761c6bd9386f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 7 Jan 2019 10:58:29 -0500
Subject: [PATCH 683/911] build: bump dev deps

---
 package.json     |  19 +-
 scripts/build.js |   2 +-
 yarn.lock        | 787 ++++++++++++++++++++---------------------------
 3 files changed, 338 insertions(+), 470 deletions(-)

diff --git a/package.json b/package.json
index da3d1ae6209..79327654c91 100644
--- a/package.json
+++ b/package.json
@@ -77,7 +77,7 @@
     "@types/node": "^10.12.18",
     "@types/webpack": "^4.4.22",
     "acorn": "^5.2.1",
-    "babel-eslint": "^8.0.3",
+    "babel-eslint": "^10.0.1",
     "babel-helper-vue-jsx-merge-props": "^2.0.3",
     "babel-loader": "^8.0.4",
     "babel-plugin-istanbul": "^5.1.0",
@@ -89,7 +89,7 @@
     "codecov": "^3.0.0",
     "commitizen": "^2.9.6",
     "conventional-changelog": "^1.1.3",
-    "cross-spawn": "^5.1.0",
+    "cross-spawn": "^6.0.5",
     "cz-conventional-changelog": "^2.0.0",
     "de-indent": "^1.0.2",
     "es6-promise": "^4.1.0",
@@ -97,7 +97,7 @@
     "eslint": "^5.7.0",
     "eslint-plugin-flowtype": "^2.34.0",
     "eslint-plugin-jasmine": "^2.8.4",
-    "file-loader": "^1.1.5",
+    "file-loader": "^3.0.1",
     "flow-bin": "^0.61.0",
     "hash-sum": "^1.0.2",
     "he": "^1.1.1",
@@ -112,23 +112,22 @@
     "karma-mocha-reporter": "^2.2.3",
     "karma-phantomjs-launcher": "^1.0.4",
     "karma-safari-launcher": "^1.0.0",
-    "karma-sauce-launcher": "^1.1.0",
+    "karma-sauce-launcher": "^2.0.2",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "^4.0.0-rc.2",
-    "lint-staged": "^7.0.0",
+    "lint-staged": "^8.0.0",
     "lodash": "^4.17.4",
     "lodash.template": "^4.4.0",
     "lodash.uniq": "^4.5.0",
-    "lru-cache": "^4.1.1",
+    "lru-cache": "^5.1.1",
     "nightwatch": "^0.9.16",
     "nightwatch-helpers": "^1.2.0",
     "phantomjs-prebuilt": "^2.1.14",
     "puppeteer": "^1.11.0",
     "resolve": "^1.3.3",
-    "rollup": "^0.68.1",
+    "rollup": "^1.0.0",
     "rollup-plugin-alias": "^1.3.1",
-    "rollup-plugin-babel": "^4.0.1",
-    "rollup-plugin-buble": "^0.19.2",
+    "rollup-plugin-buble": "^0.19.6",
     "rollup-plugin-commonjs": "^9.2.0",
     "rollup-plugin-flow-no-whitespace": "^1.0.0",
     "rollup-plugin-node-resolve": "^4.0.0",
@@ -141,7 +140,7 @@
     "webpack": "^4.22.0",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
-    "yorkie": "^1.0.1"
+    "yorkie": "^2.0.0"
   },
   "config": {
     "commitizen": {
diff --git a/scripts/build.js b/scripts/build.js
index 8d63c1eebfe..d29d1e85f7e 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -46,7 +46,7 @@ function buildEntry (config) {
   const isProd = /(min|prod)\.js$/.test(file)
   return rollup.rollup(config)
     .then(bundle => bundle.generate(output))
-    .then(({ code }) => {
+    .then(({ output: [{ code }] }) => {
       if (isProd) {
         const minified = (banner ? banner + '\n' : '') + terser.minify(code, {
           toplevel: true,
diff --git a/yarn.lock b/yarn.lock
index 71f33d245c8..2a370ebc6c5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,13 +2,6 @@
 # yarn lockfile v1
 
 
-"@babel/code-frame@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-beta.44.tgz#2a02643368de80916162be70865c97774f3adbd9"
-  integrity sha512-cuAuTTIQ9RqcFRJ/Y8PvTh+paepNcaGxwQwjIDRWPXmzzyAeCO4KqS9ikMvq0MCbRk6GlYKwfzStrcP3/jSL8g==
-  dependencies:
-    "@babel/highlight" "7.0.0-beta.44"
-
 "@babel/code-frame@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0.tgz#06e2ab19bdb535385559aabb5ba59729482800f8"
@@ -36,17 +29,6 @@
     semver "^5.4.1"
     source-map "^0.5.0"
 
-"@babel/generator@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.0.0-beta.44.tgz#c7e67b9b5284afcf69b309b50d7d37f3e5033d42"
-  integrity sha512-5xVb7hlhjGcdkKpMXgicAVgx8syK5VJz193k0i/0sLP6DzE6lRrU1K3B/rFefgdo9LPGMAOOOAWW4jycj07ShQ==
-  dependencies:
-    "@babel/types" "7.0.0-beta.44"
-    jsesc "^2.5.1"
-    lodash "^4.2.0"
-    source-map "^0.5.0"
-    trim-right "^1.0.1"
-
 "@babel/generator@^7.0.0", "@babel/generator@^7.2.2":
   version "7.2.2"
   resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.2.2.tgz#18c816c70962640eab42fe8cae5f3947a5c65ccc"
@@ -110,15 +92,6 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.0.0"
 
-"@babel/helper-function-name@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.44.tgz#e18552aaae2231100a6e485e03854bc3532d44dd"
-  integrity sha512-MHRG2qZMKMFaBavX0LWpfZ2e+hLloT++N7rfM3DYOMUOGCD8cVjqZpwiL8a0bOX3IYcQev1ruciT0gdFFRTxzg==
-  dependencies:
-    "@babel/helper-get-function-arity" "7.0.0-beta.44"
-    "@babel/template" "7.0.0-beta.44"
-    "@babel/types" "7.0.0-beta.44"
-
 "@babel/helper-function-name@^7.1.0":
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.1.0.tgz#a0ceb01685f73355d4360c1247f582bfafc8ff53"
@@ -128,13 +101,6 @@
     "@babel/template" "^7.1.0"
     "@babel/types" "^7.0.0"
 
-"@babel/helper-get-function-arity@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.44.tgz#d03ca6dd2b9f7b0b1e6b32c56c72836140db3a15"
-  integrity sha512-w0YjWVwrM2HwP6/H3sEgrSQdkCaxppqFeJtAnB23pRiJB5E/O9Yp7JAAeWBl+gGEgmBFinnTyOv2RN7rcSmMiw==
-  dependencies:
-    "@babel/types" "7.0.0-beta.44"
-
 "@babel/helper-get-function-arity@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0.tgz#83572d4320e2a4657263734113c42868b64e49c3"
@@ -223,13 +189,6 @@
     "@babel/template" "^7.1.0"
     "@babel/types" "^7.0.0"
 
-"@babel/helper-split-export-declaration@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0-beta.44.tgz#c0b351735e0fbcb3822c8ad8db4e583b05ebd9dc"
-  integrity sha512-aQ7QowtkgKKzPGf0j6u77kBMdUFVBKNHw2p/3HX/POt5/oz8ec5cs0GwlgM8Hz7ui5EwJnzyfRmkNF1Nx1N7aA==
-  dependencies:
-    "@babel/types" "7.0.0-beta.44"
-
 "@babel/helper-split-export-declaration@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0.tgz#3aae285c0311c2ab095d997b8c9a94cad547d813"
@@ -256,15 +215,6 @@
     "@babel/traverse" "^7.1.5"
     "@babel/types" "^7.2.0"
 
-"@babel/highlight@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0-beta.44.tgz#18c94ce543916a80553edcdcf681890b200747d5"
-  integrity sha512-Il19yJvy7vMFm8AVAh6OZzaFoAd0hbkeMZiX3P5HGD+z7dyI7RzndHB0dg6Urh/VAFfHtpOIzDUSxmY6coyZWQ==
-  dependencies:
-    chalk "^2.0.0"
-    esutils "^2.0.2"
-    js-tokens "^3.0.0"
-
 "@babel/highlight@^7.0.0":
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.0.0.tgz#f710c38c8d458e6dd9a201afb637fcb781ce99e4"
@@ -661,16 +611,6 @@
     pirates "^4.0.0"
     source-map-support "^0.5.9"
 
-"@babel/template@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.0.0-beta.44.tgz#f8832f4fdcee5d59bf515e595fc5106c529b394f"
-  integrity sha512-w750Sloq0UNifLx1rUqwfbnC6uSUk0mfwwgGRfdLiaUzfAOiH0tHJE6ILQIUi3KYkjiCDTskoIsnfqZvWLBDng==
-  dependencies:
-    "@babel/code-frame" "7.0.0-beta.44"
-    "@babel/types" "7.0.0-beta.44"
-    babylon "7.0.0-beta.44"
-    lodash "^4.2.0"
-
 "@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.1.2", "@babel/template@^7.2.2":
   version "7.2.2"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.2.2.tgz#005b3fdf0ed96e88041330379e0da9a708eb2907"
@@ -680,22 +620,6 @@
     "@babel/parser" "^7.2.2"
     "@babel/types" "^7.2.2"
 
-"@babel/traverse@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.0.0-beta.44.tgz#a970a2c45477ad18017e2e465a0606feee0d2966"
-  integrity sha512-UHuDz8ukQkJCDASKHf+oDt3FVUzFd+QYfuBIsiNu/4+/ix6pP/C+uQZJ6K1oEfbCMv/IKWbgDEh7fcsnIE5AtA==
-  dependencies:
-    "@babel/code-frame" "7.0.0-beta.44"
-    "@babel/generator" "7.0.0-beta.44"
-    "@babel/helper-function-name" "7.0.0-beta.44"
-    "@babel/helper-split-export-declaration" "7.0.0-beta.44"
-    "@babel/types" "7.0.0-beta.44"
-    babylon "7.0.0-beta.44"
-    debug "^3.1.0"
-    globals "^11.1.0"
-    invariant "^2.2.0"
-    lodash "^4.2.0"
-
 "@babel/traverse@^7.0.0", "@babel/traverse@^7.1.0", "@babel/traverse@^7.1.5", "@babel/traverse@^7.2.2", "@babel/traverse@^7.2.3":
   version "7.2.3"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.2.3.tgz#7ff50cefa9c7c0bd2d81231fdac122f3957748d8"
@@ -711,15 +635,6 @@
     globals "^11.1.0"
     lodash "^4.17.10"
 
-"@babel/types@7.0.0-beta.44":
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.0.0-beta.44.tgz#6b1b164591f77dec0a0342aca995f2d046b3a757"
-  integrity sha512-5eTV4WRmqbaFM3v9gHAIljEQJU4Ssc6fxL61JN+Oe2ga/BwyjzjamwkCVVAQjHGuAX8i0BWo42dshL8eO5KfLQ==
-  dependencies:
-    esutils "^2.0.2"
-    lodash "^4.2.0"
-    to-fast-properties "^2.0.0"
-
 "@babel/types@^7.0.0", "@babel/types@^7.2.0", "@babel/types@^7.2.2":
   version "7.2.2"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.2.2.tgz#44e10fc24e33af524488b716cdaee5360ea8ed1e"
@@ -729,6 +644,20 @@
     lodash "^4.17.10"
     to-fast-properties "^2.0.0"
 
+"@iamstarkov/listr-update-renderer@0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@iamstarkov/listr-update-renderer/-/listr-update-renderer-0.4.1.tgz#d7c48092a2dcf90fd672b6c8b458649cb350c77e"
+  integrity sha512-IJyxQWsYDEkf8C8QthBn5N8tIUR9V9je6j3sMIpAkonaadjbvxmRC6RAhpa3RKxndhNnU2M6iNbtJwd7usQYIA==
+  dependencies:
+    chalk "^1.1.3"
+    cli-truncate "^0.2.1"
+    elegant-spinner "^1.0.1"
+    figures "^1.7.0"
+    indent-string "^3.0.0"
+    log-symbols "^1.0.2"
+    log-update "^2.3.0"
+    strip-ansi "^3.0.1"
+
 "@samverschueren/stream-to-observable@^0.3.0":
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz#ecdf48d532c58ea477acfcab80348424f8d0662f"
@@ -970,10 +899,10 @@ acorn@^5.0.0, acorn@^5.2.1, acorn@^5.6.2:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
   integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
 
-acorn@^6.0.2:
-  version "6.0.4"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.0.4.tgz#77377e7353b72ec5104550aa2d2097a2fd40b754"
-  integrity sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg==
+acorn@^6.0.2, acorn@^6.0.4:
+  version "6.0.5"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.0.5.tgz#81730c0815f3f3b34d8efa95cb7430965f4d887a"
+  integrity sha512-i33Zgp3XWtmZBMNvCr4azvOFeWVw1Rk6p3hfi3LUDvIFraOMywb1kAtrbi+med14m4Xfpqm3zRZMT+c0FNE7kg==
 
 adm-zip@~0.4.3:
   version "0.4.13"
@@ -1085,32 +1014,6 @@ aproba@^1.0.3, aproba@^1.1.1:
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
   integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
 
-archiver-utils@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/archiver-utils/-/archiver-utils-1.3.0.tgz#e50b4c09c70bf3d680e32ff1b7994e9f9d895174"
-  integrity sha1-5QtMCccL89aA4y/xt5lOn52JUXQ=
-  dependencies:
-    glob "^7.0.0"
-    graceful-fs "^4.1.0"
-    lazystream "^1.0.0"
-    lodash "^4.8.0"
-    normalize-path "^2.0.0"
-    readable-stream "^2.0.0"
-
-archiver@2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/archiver/-/archiver-2.1.1.tgz#ff662b4a78201494a3ee544d3a33fe7496509ebc"
-  integrity sha1-/2YrSnggFJSj7lRNOjP+dJZQnrw=
-  dependencies:
-    archiver-utils "^1.3.0"
-    async "^2.0.0"
-    buffer-crc32 "^0.2.1"
-    glob "^7.0.0"
-    lodash "^4.8.0"
-    readable-stream "^2.0.0"
-    tar-stream "^1.5.0"
-    zip-stream "^1.2.0"
-
 are-we-there-yet@~1.1.2:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
@@ -1263,13 +1166,6 @@ async@1.x, async@^1.5.2:
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
   integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
 
-async@2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/async/-/async-2.0.1.tgz#b709cc0280a9c36f09f4536be823c838a9049e25"
-  integrity sha1-twnMAoCpw28J9FNr6CPIOKkEniU=
-  dependencies:
-    lodash "^4.8.0"
-
 async@^2.0.0, async@^2.1.2, async@^2.5.0:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
@@ -1306,15 +1202,15 @@ babel-code-frame@^6.26.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
-babel-eslint@^8.0.3:
-  version "8.2.6"
-  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.2.6.tgz#6270d0c73205628067c0f7ae1693a9e797acefd9"
-  integrity sha512-aCdHjhzcILdP8c9lej7hvXKvQieyRt20SF102SIGyY4cUIiw6UaAtK4j2o3dXX74jEmy0TJ0CEhv4fTIM3SzcA==
+babel-eslint@^10.0.1:
+  version "10.0.1"
+  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-10.0.1.tgz#919681dc099614cd7d31d45c8908695092a1faed"
+  integrity sha512-z7OT1iNV+TjOwHNLLyJk+HN+YVWX+CLE6fPD2SymJZOZQBs+QIexFjhm4keGTm8MW9xr4EC9Q0PbaLB24V5GoQ==
   dependencies:
-    "@babel/code-frame" "7.0.0-beta.44"
-    "@babel/traverse" "7.0.0-beta.44"
-    "@babel/types" "7.0.0-beta.44"
-    babylon "7.0.0-beta.44"
+    "@babel/code-frame" "^7.0.0"
+    "@babel/parser" "^7.0.0"
+    "@babel/traverse" "^7.0.0"
+    "@babel/types" "^7.0.0"
     eslint-scope "3.7.1"
     eslint-visitor-keys "^1.0.0"
 
@@ -1343,11 +1239,11 @@ babel-helper-vue-jsx-merge-props@^2.0.3:
   integrity sha512-gsLiKK7Qrb7zYJNgiXKpXblxbV5ffSwR0f5whkPAaBAR4fhi6bwRZxX9wBlIc5M/v8CCkXUbXZL4N/nSE97cqg==
 
 babel-loader@^8.0.4:
-  version "8.0.4"
-  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-8.0.4.tgz#7bbf20cbe4560629e2e41534147692d3fecbdce6"
-  integrity sha512-fhBhNkUToJcW9nV46v8w87AJOwAJDz84c1CL57n3Stj73FANM/b9TbCUK4YhdOwEyZ+OxhYpdeZDNzSI29Firw==
+  version "8.0.5"
+  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-8.0.5.tgz#225322d7509c2157655840bba52e46b6c2f2fe33"
+  integrity sha512-NTnHnVRd2JnRqPC0vW+iOQWU5pchDbYXsG2E6DMXEpMfUcQKclF9gmf3G3ZMhzG7IG9ji4coL0cm+FxeWxDpnw==
   dependencies:
-    find-cache-dir "^1.0.0"
+    find-cache-dir "^2.0.0"
     loader-utils "^1.0.2"
     mkdirp "^0.5.1"
     util.promisify "^1.0.0"
@@ -1465,11 +1361,6 @@ babel-types@^6.24.1, babel-types@^6.26.0:
     lodash "^4.17.4"
     to-fast-properties "^1.0.3"
 
-babylon@7.0.0-beta.44:
-  version "7.0.0-beta.44"
-  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.44.tgz#89159e15e6e30c5096e22d738d8c0af8a0e8ca1d"
-  integrity sha512-5Hlm13BJVAioCHpImtFqNOF2H3ieTOHd0fmFGMxOJ9jgeFqeAwsv3u5P5cR7CSeFrkgHsT19DgFJkHV0/Mcd8g==
-
 babylon@^6.18.0, babylon@^6.8.4:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
@@ -1527,24 +1418,16 @@ better-assert@~1.0.0:
   dependencies:
     callsite "1.0.0"
 
-big.js@^3.1.3:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.2.0.tgz#a5fc298b81b9e0dca2e458824784b65c52ba588e"
-  integrity sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==
+big.js@^5.2.2:
+  version "5.2.2"
+  resolved "https://registry.yarnpkg.com/big.js/-/big.js-5.2.2.tgz#65f0af382f578bcdc742bd9c281e9cb2d7768328"
+  integrity sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ==
 
 binary-extensions@^1.0.0:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.12.0.tgz#c2d780f53d45bba8317a8902d4ceeaf3a6385b14"
   integrity sha512-DYWGk01lDcxeS/K9IHPGWfT8PsJmbXRtRd2Sx72Tnb8pcYZQFF1oSDb8hJtS1vhp212q1Rzi5dUf9+nq0o9UIg==
 
-bl@^1.0.0:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.2.tgz#a160911717103c07410cef63ef51b397c025af9c"
-  integrity sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==
-  dependencies:
-    readable-stream "^2.3.5"
-    safe-buffer "^5.1.1"
-
 blob@0.0.5:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.5.tgz#d680eeef25f8cd91ad533f5b01eed48e64caf683"
@@ -1686,13 +1569,13 @@ browserify-zlib@^0.2.0:
     pako "~1.0.5"
 
 browserslist@^4.3.4:
-  version "4.3.6"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.3.6.tgz#0f9d9081afc66b36f477c6bdf3813f784f42396a"
-  integrity sha512-kMGKs4BTzRWviZ8yru18xBpx+CyHG9eqgRbj9XbE3IMgtczf4aiA0Y1YCpVdvUieKGZ03kolSPXqTcscBCb9qw==
+  version "4.3.7"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.3.7.tgz#f1de479a6466ea47a0a26dcc725e7504817e624a"
+  integrity sha512-pWQv51Ynb0MNk9JGMCZ8VkM785/4MQNXiFYtPqI7EEP0TJO+/d/NqRVn1uiAN0DNbnlUSpL2sh16Kspasv3pUQ==
   dependencies:
-    caniuse-lite "^1.0.30000921"
-    electron-to-chromium "^1.3.92"
-    node-releases "^1.1.1"
+    caniuse-lite "^1.0.30000925"
+    electron-to-chromium "^1.3.96"
+    node-releases "^1.1.3"
 
 buble@^0.19.3, buble@^0.19.6:
   version "0.19.6"
@@ -1719,11 +1602,6 @@ buffer-alloc@^1.2.0:
     buffer-alloc-unsafe "^1.1.0"
     buffer-fill "^1.0.0"
 
-buffer-crc32@^0.2.1:
-  version "0.2.13"
-  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
-  integrity sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=
-
 buffer-fill@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
@@ -1748,14 +1626,6 @@ buffer@^4.3.0:
     ieee754 "^1.1.4"
     isarray "^1.0.0"
 
-buffer@^5.1.0:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.2.1.tgz#dd57fa0f109ac59c602479044dca7b8b3d0b71d6"
-  integrity sha512-c+Ko0loDaFfuPWiL02ls9Xd3GO3cPVmUobQ6t3rXNUk304u6hGq+8N/kFi+QEIKhzK3uwolVhLzszmfLmMLnqg==
-  dependencies:
-    base64-js "^1.0.2"
-    ieee754 "^1.1.4"
-
 builtin-modules@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
@@ -1818,41 +1688,15 @@ cachedir@^1.1.0:
   dependencies:
     os-homedir "^1.0.1"
 
-caller-callsite@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/caller-callsite/-/caller-callsite-2.0.0.tgz#847e0fce0a223750a9a027c54b33731ad3154134"
-  integrity sha1-hH4PzgoiN1CpoCfFSzNzGtMVQTQ=
-  dependencies:
-    callsites "^2.0.0"
-
-caller-path@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
-  integrity sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=
-  dependencies:
-    callsites "^0.2.0"
-
-caller-path@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-2.0.0.tgz#468f83044e369ab2010fac5f06ceee15bb2cb1f4"
-  integrity sha1-Ro+DBE42mrIBD6xfBs7uFbsssfQ=
-  dependencies:
-    caller-callsite "^2.0.0"
-
 callsite@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
   integrity sha1-KAOY5dZkvXQDi28JBRU+borxvCA=
 
-callsites@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
-  integrity sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=
-
-callsites@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
-  integrity sha1-BuuE8A7qQT2oav/vrL/7Ngk7PFA=
+callsites@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-3.0.0.tgz#fb7eb569b72ad7a45812f93fd9430a3e410b3dd3"
+  integrity sha512-tWnkwu9YEq2uzlBDI4RcLn8jrFvF9AOi8PxDNU3hZZjJcjkcRAq3vCI+vZcg1SuxISDYe86k9VZFwAxDiJGoAw==
 
 camelcase-keys@^2.0.0:
   version "2.1.0"
@@ -1881,10 +1725,10 @@ camelcase@^4.1.0:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
   integrity sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=
 
-caniuse-lite@^1.0.30000921:
-  version "1.0.30000923"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000923.tgz#148f9bda508024b5ce957b463ae2e8302b451bb2"
-  integrity sha512-j5ur7eeluOFjjPUkydtXP4KFAsmH3XaQNch5tvWSO+dLHYt5PE+VgJZLWtbVOodfWij6m6zas28T4gB/cLYq1w==
+caniuse-lite@^1.0.30000925:
+  version "1.0.30000927"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000927.tgz#114a9de4ff1e01f5790fe578ecd93421c7524665"
+  integrity sha512-ogq4NbUWf1uG/j66k0AmiO3GjqJAlQyF8n4w8a954cbCyFKmYGvRtgz6qkq2fWuduTXHibX7GyYL5Pg58Aks2g==
 
 caseless@~0.12.0:
   version "0.12.0"
@@ -1911,9 +1755,9 @@ chalk@1.1.3, chalk@^1.0.0, chalk@^1.1.3:
     supports-color "^2.0.0"
 
 chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1, chalk@^2.4.1:
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
-  integrity sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
+  integrity sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==
   dependencies:
     ansi-styles "^3.2.1"
     escape-string-regexp "^1.0.5"
@@ -2164,16 +2008,6 @@ component-inherit@0.0.3:
   resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
   integrity sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM=
 
-compress-commons@^1.2.0:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/compress-commons/-/compress-commons-1.2.2.tgz#524a9f10903f3a813389b0225d27c48bb751890f"
-  integrity sha1-UkqfEJA/OoEzibAiXSfEi7dRiQ8=
-  dependencies:
-    buffer-crc32 "^0.2.1"
-    crc32-stream "^2.0.0"
-    normalize-path "^2.0.0"
-    readable-stream "^2.0.0"
-
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -2403,6 +2237,11 @@ core-js@^2.2.0, core-js@^2.4.0, core-js@^2.5.7:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.1.tgz#87416ae817de957a3f249b3b5ca475d4aaed6042"
   integrity sha512-L72mmmEayPJBejKIWe2pYtGis5r0tQ5NaJekdhyXgeMQTpJoBsH0NL4ElY2LfSoV15xeQWKQ+XTTOZdyero5Xg==
 
+core-js@~2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.3.0.tgz#fab83fbb0b2d8dc85fa636c4b9d34c75420c6d65"
+  integrity sha1-+rg/uwstjchfpjbEudNMdUIMbWU=
+
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -2413,31 +2252,15 @@ corser@~2.0.0:
   resolved "https://registry.yarnpkg.com/corser/-/corser-2.0.1.tgz#8eda252ecaab5840dcd975ceb90d9370c819ff87"
   integrity sha1-jtolLsqrWEDc2XXOuQ2TcMgZ/4c=
 
-cosmiconfig@^5.0.2:
-  version "5.0.7"
-  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.7.tgz#39826b292ee0d78eda137dfa3173bd1c21a43b04"
-  integrity sha512-PcLqxTKiDmNT6pSpy4N6KtuPwb53W+2tzNvwOZw0WH9N6O0vLIBq0x8aj8Oj75ere4YcGi48bDFCL+3fRJdlNA==
+cosmiconfig@5.0.6:
+  version "5.0.6"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.6.tgz#dca6cf680a0bd03589aff684700858c81abeeb39"
+  integrity sha512-6DWfizHriCrFWURP1/qyhsiFvYdlJzbCzmtFWh744+KyWsJo5+kPzUZZaMRSSItoYc0pxFX7gEO7ZC1/gN/7AQ==
   dependencies:
-    import-fresh "^2.0.0"
     is-directory "^0.3.1"
     js-yaml "^3.9.0"
     parse-json "^4.0.0"
 
-crc32-stream@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/crc32-stream/-/crc32-stream-2.0.0.tgz#e3cdd3b4df3168dd74e3de3fbbcb7b297fe908f4"
-  integrity sha1-483TtN8xaN10494/u8t7KX/pCPQ=
-  dependencies:
-    crc "^3.4.4"
-    readable-stream "^2.0.0"
-
-crc@^3.4.4:
-  version "3.8.0"
-  resolved "https://registry.yarnpkg.com/crc/-/crc-3.8.0.tgz#ad60269c2c856f8c299e2c4cc0de4556914056c6"
-  integrity sha512-iX3mfgcTMIq3ZKLIsVFAbv7+Mc10kxabAGQb8HvjA1o3T1PIYprbakQ65d3I+2HGHt6nSKkM9PYjgoJO2KcFBQ==
-  dependencies:
-    buffer "^5.1.0"
-
 create-ecdh@^4.0.0:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.3.tgz#c9111b6f33045c4697f144787f9254cdc77c45ff"
@@ -2469,7 +2292,7 @@ create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
-cross-spawn@^5.0.1, cross-spawn@^5.1.0:
+cross-spawn@^5.0.1:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
   integrity sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=
@@ -2478,7 +2301,7 @@ cross-spawn@^5.0.1, cross-spawn@^5.1.0:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-cross-spawn@^6.0.5:
+cross-spawn@^6.0.0, cross-spawn@^6.0.5:
   version "6.0.5"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
   integrity sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==
@@ -2622,7 +2445,7 @@ debug@2.2.0:
   dependencies:
     ms "0.7.1"
 
-debug@4.1.0, debug@^4.0.1, debug@^4.1.0:
+debug@4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.0.tgz#373687bffa678b38b1cd91f861b63850035ddc87"
   integrity sha512-heNPJUJIqC+xB6ayLAMHaIrmN9HKa7aQO8MGqKpvCA+uJYVcvR6l5kgdrhRuwPFHU7P5/A1w0BjByPHwpfTDKg==
@@ -2643,6 +2466,13 @@ debug@^3.1.0:
   dependencies:
     ms "^2.1.1"
 
+debug@^4.0.1, debug@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
+  integrity sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==
+  dependencies:
+    ms "^2.1.1"
+
 decamelize-keys@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
@@ -2866,10 +2696,10 @@ ejs@2.5.7:
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.7.tgz#cc872c168880ae3c7189762fd5ffc00896c9518a"
   integrity sha1-zIcsFoiArjxxiXYv1f/ACJbJUYo=
 
-electron-to-chromium@^1.3.92:
-  version "1.3.96"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.96.tgz#25770ec99b8b07706dedf3a5f43fa50cb54c4f9a"
-  integrity sha512-ZUXBUyGLeoJxp4Nt6G/GjBRLnyz8IKQGexZ2ndWaoegThgMGFO1tdDYID5gBV32/1S83osjJHyfzvanE/8HY4Q==
+electron-to-chromium@^1.3.96:
+  version "1.3.98"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.98.tgz#f200bdac84b1110d7d9904f34f4fc6d5573a8a9c"
+  integrity sha512-WIZdNuvE3dFr6kkPgv4d/cfswNZD6XbeLBM8baOIQTsnbf4xWrVEaLvp7oNnbnMWWXDqq7Tbv+H5JfciLTJm4Q==
 
 elegant-spinner@^1.0.1:
   version "1.0.1"
@@ -2982,17 +2812,18 @@ error-ex@^1.2.0, error-ex@^1.3.1:
     is-arrayish "^0.2.1"
 
 es-abstract@^1.5.1:
-  version "1.12.0"
-  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
-  integrity sha512-C8Fx/0jFmV5IPoMOFPA9P9G5NtqW+4cOPit3MIuvR2t7Ag2K15EJTpxnHAYTzL+aYQJIESYeXZmDBfOBE1HcpA==
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.13.0.tgz#ac86145fdd5099d8dd49558ccba2eaf9b88e24e9"
+  integrity sha512-vDZfg/ykNxQVwup/8E1BZhVzFfBxs9NqMzGcvIJrqg5k2/5Za2bWo40dK2J1pgLngZ7c+Shh8lwYtLGyrwPutg==
   dependencies:
-    es-to-primitive "^1.1.1"
+    es-to-primitive "^1.2.0"
     function-bind "^1.1.1"
-    has "^1.0.1"
-    is-callable "^1.1.3"
+    has "^1.0.3"
+    is-callable "^1.1.4"
     is-regex "^1.0.4"
+    object-keys "^1.0.12"
 
-es-to-primitive@^1.1.1:
+es-to-primitive@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/es-to-primitive/-/es-to-primitive-1.2.0.tgz#edf72478033456e8dda8ef09e00ad9650707f377"
   integrity sha512-qZryBOJjV//LaxLTV6UC//WewneB3LcXOL9NP++ozKVXsIIIpm/2c13UDiD9Jp2eThsecw9m3jPqDwTyobcdbg==
@@ -3006,6 +2837,11 @@ es6-promise@^4.0.3, es6-promise@^4.1.0:
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.5.tgz#da6d0d5692efb461e082c14817fe2427d8f5d054"
   integrity sha512-n6wvpdE43VFtJq+lUDYDBFUwV8TZbuGXLV4D6wKafg13ldznKsyEvatubnmUe31zcvelSzOHF+XbaT+Bl9ObDg==
 
+es6-promise@~3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-3.0.2.tgz#010d5858423a5f118979665f46486a95c6ee2bb6"
+  integrity sha1-AQ1YWEI6XxGJeWZfRkhqlcbuK7Y=
+
 es6-promisify@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
@@ -3018,7 +2854,7 @@ escape-html@~1.0.3:
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
   integrity sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=
 
-escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
+escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.4, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
   integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
@@ -3086,9 +2922,9 @@ eslint-visitor-keys@^1.0.0:
   integrity sha512-qzm/XxIbxm/FHyH341ZrbnMUpe+5Bocte9xkmFMzPMjRaZMcXww+MpBptFvtU+79L362nqiLhekCxCxDPaUMBQ==
 
 eslint@^5.7.0:
-  version "5.10.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.10.0.tgz#24adcbe92bf5eb1fc2d2f2b1eebe0c5e0713903a"
-  integrity sha512-HpqzC+BHULKlnPwWae9MaVZ5AXJKpkxCVXQHrFaRw3hbDj26V/9ArYM4Rr/SQ8pi6qUPLXSSXC4RBJlyq2Z2OQ==
+  version "5.12.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-5.12.0.tgz#fab3b908f60c52671fb14e996a450b96c743c859"
+  integrity sha512-LntwyPxtOHrsJdcSwyQKVtHofPHdv+4+mFwEe91r2V13vqpM8yLr7b1sW+Oo/yheOPkWYsYlYJCkzlFAt8KV7g==
   dependencies:
     "@babel/code-frame" "^7.0.0"
     ajv "^6.5.3"
@@ -3107,6 +2943,7 @@ eslint@^5.7.0:
     glob "^7.1.2"
     globals "^11.7.0"
     ignore "^4.0.6"
+    import-fresh "^3.0.0"
     imurmurhash "^0.1.4"
     inquirer "^6.1.0"
     js-yaml "^3.12.0"
@@ -3121,7 +2958,6 @@ eslint@^5.7.0:
     pluralize "^7.0.0"
     progress "^2.0.0"
     regexpp "^2.0.1"
-    require-uncached "^1.0.3"
     semver "^5.5.1"
     strip-ansi "^4.0.0"
     strip-json-comments "^2.0.1"
@@ -3222,13 +3058,13 @@ execa@^0.8.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
-execa@^0.9.0:
-  version "0.9.0"
-  resolved "https://registry.yarnpkg.com/execa/-/execa-0.9.0.tgz#adb7ce62cf985071f60580deb4a88b9e34712d01"
-  integrity sha512-BbUMBiX4hqiHZUA5+JujIjNb6TyAlp2D5KLheMjMluwOuzcnylDL4AxZYLLn1n2AGB49eSWwyKvvEQoRpnAtmA==
+execa@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
+  integrity sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==
   dependencies:
-    cross-spawn "^5.0.1"
-    get-stream "^3.0.0"
+    cross-spawn "^6.0.0"
+    get-stream "^4.0.0"
     is-stream "^1.1.0"
     npm-run-path "^2.0.0"
     p-finally "^1.0.0"
@@ -3434,13 +3270,13 @@ file-entry-cache@^2.0.0:
     flat-cache "^1.2.1"
     object-assign "^4.0.1"
 
-file-loader@^1.1.5:
-  version "1.1.11"
-  resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.11.tgz#6fe886449b0f2a936e43cabaac0cdbfb369506f8"
-  integrity sha512-TGR4HU7HUsGg6GCOPJnFk06RhWgEWFLAGWiT6rcD+GRC2keU3s9RGJ+b3Z6/U73jwwNb2gKLJ7YCrp+jvU4ALg==
+file-loader@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-3.0.1.tgz#f8e0ba0b599918b51adfe45d66d1e771ad560faa"
+  integrity sha512-4sNIOXgtH/9WZq4NvlfU3Opn5ynUsqBwSLyM+I7UOwdGigTBYfVVQEwe/msZNX/j4pCJTIM14Fsw66Svo1oVrw==
   dependencies:
     loader-utils "^1.0.2"
-    schema-utils "^0.4.5"
+    schema-utils "^1.0.0"
 
 file-uri-to-path@1:
   version "1.0.0"
@@ -3591,9 +3427,9 @@ flush-write-stream@^1.0.0:
     readable-stream "^2.0.4"
 
 follow-redirects@^1.0.0:
-  version "1.5.10"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
-  integrity sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.6.1.tgz#514973c44b5757368bad8bddfe52f81f015c94cb"
+  integrity sha512-t2JCjbzxQpWvbhts3l6SH1DKzSrx8a+SsaVf4h6bG4kOXUuPYS/kg2Lr4gQSb7eemaHqJkOThF1BGyjlUkO1GQ==
   dependencies:
     debug "=3.1.0"
 
@@ -3645,11 +3481,6 @@ fs-access@^1.0.0:
   dependencies:
     null-check "^1.0.0"
 
-fs-constants@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
-  integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
-
 fs-exists-sync@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
@@ -3712,6 +3543,15 @@ functional-red-black-tree@^1.0.1:
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
   integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
 
+g-status@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/g-status/-/g-status-2.0.2.tgz#270fd32119e8fc9496f066fe5fe88e0a6bc78b97"
+  integrity sha512-kQoE9qH+T1AHKgSSD0Hkv98bobE90ILQcXAF4wvGgsr7uFqNvwmh8j+Lq3l0RVt3E3HjSbv2B9biEGcEtpHLCA==
+  dependencies:
+    arrify "^1.0.1"
+    matcher "^1.0.0"
+    simple-git "^1.85.0"
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -3752,6 +3592,13 @@ get-stream@^3.0.0:
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
   integrity sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ=
 
+get-stream@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
+  integrity sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==
+  dependencies:
+    pump "^3.0.0"
+
 get-uri@2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/get-uri/-/get-uri-2.0.2.tgz#5c795e71326f6ca1286f2fc82575cd2bab2af578"
@@ -3868,7 +3715,7 @@ glob@^5.0.15:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.0.6, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3:
+glob@^7.0.0, glob@^7.0.3, glob@^7.0.6, glob@^7.1.1, glob@^7.1.2, glob@^7.1.3:
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
   integrity sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==
@@ -3919,7 +3766,7 @@ globby@^6.1.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
+graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.1.9:
   version "4.1.15"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
   integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
@@ -4028,7 +3875,7 @@ has-values@^1.0.0:
     is-number "^3.0.0"
     kind-of "^4.0.0"
 
-has@^1.0.1:
+has@^1.0.1, has@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
   integrity sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==
@@ -4204,13 +4051,18 @@ ignore@^4.0.6:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
   integrity sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==
 
-import-fresh@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-2.0.0.tgz#d81355c15612d386c61f9ddd3922d4304822a546"
-  integrity sha1-2BNVwVYS04bGH53dOSLUMEgipUY=
+immediate@~3.0.5:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
+  integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
+
+import-fresh@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-3.0.0.tgz#a3d897f420cab0e671236897f75bc14b4885c390"
+  integrity sha512-pOnA9tfM3Uwics+SaBLCNyZZZbK+4PTu0OPZtLlMIrv17EdBoC15S9Kn8ckJ9TZTyKb3ywNE5y1yeDxxGA7nTQ==
   dependencies:
-    caller-path "^2.0.0"
-    resolve-from "^3.0.0"
+    parent-module "^1.0.0"
+    resolve-from "^4.0.0"
 
 imurmurhash@^0.1.4:
   version "0.1.4"
@@ -4316,11 +4168,11 @@ inquirer@^6.1.0:
     through "^2.3.6"
 
 interpret@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
-  integrity sha1-ftGxQQxqDg94z5XTuEQMY/eLhhQ=
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.2.0.tgz#d5061a6224be58e8083985f5014d844359576296"
+  integrity sha512-mT34yGKMNceBQUoVn7iCDKDntA7SC6gycMAWzGx1z/CMCTV7b2AAtXlo3nRyHZ1FelRkQbQjprHSYGwzLtkVbw==
 
-invariant@^2.2.0, invariant@^2.2.2:
+invariant@^2.2.2:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
   integrity sha512-phJfQVBuaJM5raOpJjSfkiD6BpbCE4Ns//LaXl6wGYtUBY83nWS6Rf9tXm2e8VaK60JEjYldbPif/A2B1C2gNA==
@@ -4380,7 +4232,7 @@ is-builtin-module@^1.0.0:
   dependencies:
     builtin-modules "^1.0.0"
 
-is-callable@^1.1.3, is-callable@^1.1.4:
+is-callable@^1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.4.tgz#1e1adf219e1eeb684d691f9d6a05ff0d30a24d75"
   integrity sha512-r5p9sxJjYnArLjObpjA4xu5EKI3CuKHkJXMhT7kwbpUyIFD1n5PMAsoPvWnvtZiNz7LjkYDRZhd7FlI0eMijEA==
@@ -4781,20 +4633,20 @@ js-levenshtein@^1.1.3:
   resolved "https://registry.yarnpkg.com/js-levenshtein/-/js-levenshtein-1.1.4.tgz#3a56e3cbf589ca0081eb22cd9ba0b1290a16d26e"
   integrity sha512-PxfGzSs0ztShKrUYPIn5r0MtyAhYcCwmndozzpz8YObbPnD1jFxzlBGbRnX2mIu6Z13xN6+PTu05TQFnZFlzow==
 
-js-tokens@^3.0.0, js-tokens@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
-  integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
-
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
+js-tokens@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
+  integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
+
 js-yaml@3.x, js-yaml@^3.12.0, js-yaml@^3.9.0:
-  version "3.12.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
-  integrity sha512-PIt2cnwmPfL4hKNwqeiuz4bKfnzHTBv6HyVgjahA6mPLwPDzjDWrplJBMjHUFxku/N3FlmrbyPclad+I+4mJ3A==
+  version "3.12.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.1.tgz#295c8632a18a23e054cf5c9d3cecafe678167600"
+  integrity sha512-um46hB9wNOKlwkHgiuyEVAybXBjwFUV0Z/RaHJblRd9DXltue9FTYvzCr9ErQrK9Adz5MU4gHWVaNUfdmrC8qA==
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
@@ -4844,10 +4696,12 @@ json3@3.3.2:
   resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
   integrity sha1-PAQ0dD35Pi9cQq7nsZvLSDV19OE=
 
-json5@^0.5.0:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
-  integrity sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=
+json5@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-1.0.1.tgz#779fb0018604fa854eacbf6252180d83543e3dbe"
+  integrity sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==
+  dependencies:
+    minimist "^1.2.0"
 
 json5@^2.1.0:
   version "2.1.0"
@@ -4878,6 +4732,17 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+jszip@^3.1.3:
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/jszip/-/jszip-3.1.5.tgz#e3c2a6c6d706ac6e603314036d43cd40beefdf37"
+  integrity sha512-5W8NUaFRFRqTOL7ZDDrx5qWHJyBXy6velVudIzQUSoqAAYqzSh2Z7/m0Rf1QbmQJccegD0r+YZxBjzqoBiEeJQ==
+  dependencies:
+    core-js "~2.3.0"
+    es6-promise "~3.0.2"
+    lie "~3.1.0"
+    pako "~1.0.2"
+    readable-stream "~2.0.6"
+
 karma-chrome-launcher@^2.1.1:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/karma-chrome-launcher/-/karma-chrome-launcher-2.2.0.tgz#cf1b9d07136cc18fe239327d24654c3dbc368acf"
@@ -4929,15 +4794,14 @@ karma-safari-launcher@^1.0.0:
   resolved "https://registry.yarnpkg.com/karma-safari-launcher/-/karma-safari-launcher-1.0.0.tgz#96982a2cc47d066aae71c553babb28319115a2ce"
   integrity sha1-lpgqLMR9BmquccVTursoMZEVos4=
 
-karma-sauce-launcher@^1.1.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/karma-sauce-launcher/-/karma-sauce-launcher-1.2.0.tgz#6f2558ddef3cf56879fa27540c8ae9f8bfd16bca"
-  integrity sha512-lEhtGRGS+3Yw6JSx/vJY9iQyHNtTjcojrSwNzqNUOaDceKDu9dPZqA/kr69bUO9G2T6GKbu8AZgXqy94qo31Jg==
+karma-sauce-launcher@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/karma-sauce-launcher/-/karma-sauce-launcher-2.0.2.tgz#dbf98e70d86bf287b03a537cf637eb7aefa975c3"
+  integrity sha512-jLUFaJhHMcKpxFWUesyWYihzM5FvQiJsDwGcCtKeOy2lsWhkVw0V0Byqb1d+wU6myU1mribBtsIcub23HS4kWA==
   dependencies:
-    q "^1.5.0"
-    sauce-connect-launcher "^1.2.2"
-    saucelabs "^1.4.0"
-    wd "^1.4.0"
+    sauce-connect-launcher "^1.2.4"
+    saucelabs "^1.5.0"
+    selenium-webdriver "^4.0.0-alpha.1"
 
 karma-sourcemap-loader@^0.3.7:
   version "0.3.7"
@@ -5026,13 +4890,6 @@ klaw@^1.0.0:
   optionalDependencies:
     graceful-fs "^4.1.9"
 
-lazystream@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
-  integrity sha1-9plf4PggOS9hOWvolGJAe7dxaOQ=
-  dependencies:
-    readable-stream "^2.0.5"
-
 leven@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
@@ -5046,22 +4903,32 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
-lint-staged@^7.0.0:
-  version "7.3.0"
-  resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.3.0.tgz#90ff33e5ca61ed3dbac35b6f6502dbefdc0db58d"
-  integrity sha512-AXk40M9DAiPi7f4tdJggwuKIViUplYtVj1os1MVEteW7qOkU50EOehayCfO9TsoGK24o/EsWb41yrEgfJDDjCw==
+lie@~3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lie/-/lie-3.1.1.tgz#9a436b2cc7746ca59de7a41fa469b3efb76bd87e"
+  integrity sha1-mkNrLMd0bKWd56QfpGmz77dr2H4=
+  dependencies:
+    immediate "~3.0.5"
+
+lint-staged@^8.0.0:
+  version "8.1.0"
+  resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-8.1.0.tgz#dbc3ae2565366d8f20efb9f9799d076da64863f2"
+  integrity sha512-yfSkyJy7EuVsaoxtUSEhrD81spdJOe/gMTGea3XaV7HyoRhTb9Gdlp6/JppRZERvKSEYXP9bjcmq6CA5oL2lYQ==
   dependencies:
+    "@iamstarkov/listr-update-renderer" "0.4.1"
     chalk "^2.3.1"
     commander "^2.14.1"
-    cosmiconfig "^5.0.2"
+    cosmiconfig "5.0.6"
     debug "^3.1.0"
     dedent "^0.7.0"
-    execa "^0.9.0"
+    del "^3.0.0"
+    execa "^1.0.0"
     find-parent-dir "^0.3.0"
+    g-status "^2.0.2"
     is-glob "^4.0.0"
     is-windows "^1.0.2"
     jest-validate "^23.5.0"
-    listr "^0.14.1"
+    listr "^0.14.2"
     lodash "^4.17.5"
     log-symbols "^2.2.0"
     micromatch "^3.1.8"
@@ -5070,7 +4937,7 @@ lint-staged@^7.0.0:
     path-is-inside "^1.0.2"
     pify "^3.0.0"
     please-upgrade-node "^3.0.2"
-    staged-git-files "1.1.1"
+    staged-git-files "1.1.2"
     string-argv "^0.0.2"
     stringify-object "^3.2.2"
 
@@ -5103,7 +4970,7 @@ listr-verbose-renderer@^0.5.0:
     date-fns "^1.27.2"
     figures "^2.0.0"
 
-listr@^0.14.1:
+listr@^0.14.2:
   version "0.14.3"
   resolved "https://registry.yarnpkg.com/listr/-/listr-0.14.3.tgz#2fea909604e434be464c50bddba0d496928fa586"
   integrity sha512-RmAl7su35BFd/xoMamRjpIE4j3v+L28o8CT5YhAXQJm1fD+1l9ngXY8JAQRJ+tFK2i5njvi0iRUKV09vPwA0iA==
@@ -5145,13 +5012,13 @@ loader-runner@^2.3.0:
   integrity sha512-By6ZFY7ETWOc9RFaAIb23IjJVcM4dvJC/N57nmdz9RSkMXvAXGI7SyVlAw3v8vjtDRlqThgVDVmTnr9fqMlxkw==
 
 loader-utils@^1.0.2, loader-utils@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
-  integrity sha1-yYrvSIvM7aL/teLeZG1qdUQp9c0=
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.2.3.tgz#1ff5dc6911c9f0a062531a4c04b609406108c2c7"
+  integrity sha512-fkpz8ejdnEMG3s37wGL07iSBDg99O9D5yflE9RGNH3hRdx9SOwYfnGYdZOUIZitN8E+E2vkq3MUMYMvPYl5ZZA==
   dependencies:
-    big.js "^3.1.3"
+    big.js "^5.2.2"
     emojis-list "^2.0.0"
-    json5 "^0.5.0"
+    json5 "^1.0.1"
 
 locate-path@^2.0.0:
   version "2.0.0"
@@ -5343,16 +5210,16 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@4.17.11, lodash@^4.0.1, lodash@^4.16.6, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0, lodash@^4.8.0:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
-
 lodash@4.17.5:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
   integrity sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw==
 
+lodash@^4.0.1, lodash@^4.16.6, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.5.0:
+  version "4.17.11"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
+
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
@@ -5407,7 +5274,7 @@ loud-rejection@^1.0.0:
     currently-unhandled "^0.4.1"
     signal-exit "^3.0.0"
 
-lru-cache@4.1.x, lru-cache@^4.0.1, lru-cache@^4.1.1:
+lru-cache@4.1.x, lru-cache@^4.0.1:
   version "4.1.5"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
   integrity sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==
@@ -5470,6 +5337,13 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+matcher@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/matcher/-/matcher-1.1.1.tgz#51d8301e138f840982b338b116bb0c09af62c1c2"
+  integrity sha512-+BmqxWIubKTRKNWx/ahnCkk3mG8m7OturVlqq6HiojGJTd5hVYbgZm6WzcYPCoB+KBT4Vd6R7WSRG2OADNaCjg==
+  dependencies:
+    escape-string-regexp "^1.0.4"
+
 math-random@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.1.tgz#8b3aac588b8a66e4975e3cdea67f7bb329601fac"
@@ -5898,10 +5772,10 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
-node-releases@^1.1.1:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.2.tgz#93c17fba5eec8650ad908de5433fa8763baebe4d"
-  integrity sha512-j1gEV/zX821yxdWp/1vBMN0pSUjuH9oGUdLCb4PfUko6ZW7KdRs3Z+QGGwDUhYtSpQvdVVyLd2V0YvLsmdg5jQ==
+node-releases@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.3.tgz#aad9ce0dcb98129c753f772c0aa01360fb90fbd2"
+  integrity sha512-6VrvH7z6jqqNFY200kdB6HdzkgM96Oaj9v3dqGfgp6mF+cHmU4wyQKZ2/WPDRVoR0Jz9KqbamaBN0ZhdUaysUQ==
   dependencies:
     semver "^5.3.0"
 
@@ -5935,7 +5809,7 @@ normalize-path@^1.0.0:
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-1.0.0.tgz#32d0e472f91ff345701c15a8311018d3b0a90379"
   integrity sha1-MtDkcvkf80VwHBWoMRAY07CpA3k=
 
-normalize-path@^2.0.0, normalize-path@^2.0.1, normalize-path@^2.1.1:
+normalize-path@^2.0.1, normalize-path@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
   integrity sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=
@@ -5948,9 +5822,9 @@ npm-bundled@^1.0.1:
   integrity sha512-m/e6jgWu8/v5niCUKQi9qQl8QdeEduFA96xHDDzFGqly0OOjI7c+60KM/2sppfnUU9JJagf+zs+yGhqSOFj71g==
 
 npm-packlist@^1.1.6:
-  version "1.1.12"
-  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.1.12.tgz#22bde2ebc12e72ca482abd67afc51eb49377243a"
-  integrity sha512-WJKFOVMeAlsU/pjXuqVdzU0WfgtIBCupkEVwn+1Y0ERAbUfWw8R4GjgVbaKnUjRoD2FoQbHOCbOyT5Mbs9Lw4g==
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.2.0.tgz#55a60e793e272f00862c7089274439a4cc31fc7f"
+  integrity sha512-7Mni4Z8Xkx0/oegoqlcao/JpPCPEMtUvsmB0q7mgvlMinykJLSRTYuFqoQLYgGY8biuxIeiHO+QNJKbCfljewQ==
   dependencies:
     ignore-walk "^3.0.1"
     npm-bundled "^1.0.1"
@@ -6169,9 +6043,9 @@ p-limit@^1.1.0:
     p-try "^1.0.0"
 
 p-limit@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.0.0.tgz#e624ed54ee8c460a778b3c9f3670496ff8a57aec"
-  integrity sha512-fl5s52lI5ahKCernzzIyAP0QAZbGIovtVHGwpcu1Jr/EpzLVDI2myISHwGqK7m8uQFugVWSrbxH7XnhGtvEc+A==
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.1.0.tgz#1d5a0d20fb12707c758a655f6bbc4386b5930d68"
+  integrity sha512-NhURkNcrVB+8hNfLuysU8enY5xn2KXphsHBaC2YmRNTZRc7RWusw6apSpdEj3jo4CMb6W9nrF6tTnsJsJeyu6g==
   dependencies:
     p-try "^2.0.0"
 
@@ -6242,7 +6116,7 @@ pad-right@^0.2.2:
   dependencies:
     repeat-string "^1.5.2"
 
-pako@~1.0.5:
+pako@~1.0.2, pako@~1.0.5:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.7.tgz#2473439021b57f1516c82f58be7275ad8ef1bb27"
   integrity sha512-3HNK5tW4x8o5mO8RuHZp3Ydw9icZXx0RANAOMzlMzx7LVXhMJ4mo3MOBpzyd7r/+RUu8BmndP47LXT+vzjtWcQ==
@@ -6256,6 +6130,13 @@ parallel-transform@^1.1.0:
     inherits "^2.0.3"
     readable-stream "^2.1.5"
 
+parent-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/parent-module/-/parent-module-1.0.0.tgz#df250bdc5391f4a085fb589dad761f5ad6b865b5"
+  integrity sha512-8Mf5juOMmiE4FcmzYc4IaiS9L3+9paz2KOiXzkRviCP6aDmN49Hz6EMWz0lGNp9pX80GvvAuLADtyGfW/Em3TA==
+  dependencies:
+    callsites "^3.0.0"
+
 parse-asn1@^5.0.0:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
@@ -6512,6 +6393,11 @@ private@^0.1.6:
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
   integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
 
+process-nextick-args@~1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
+  integrity sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=
+
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -6642,7 +6528,7 @@ q@1.4.1:
   resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
   integrity sha1-VXBbzZPF82c1MMLCy8DCs63cKG4=
 
-q@^1.4.1, q@^1.5.0, q@^1.5.1:
+q@^1.4.1, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
   integrity sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc=
@@ -6768,7 +6654,7 @@ read-pkg@^3.0.0:
     normalize-package-data "^2.3.2"
     path-type "^3.0.0"
 
-"readable-stream@1 || 2", readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.6:
+"readable-stream@1 || 2", readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.6, readable-stream@~2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
@@ -6791,6 +6677,18 @@ readable-stream@1.1.x:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
+readable-stream@~2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
+  integrity sha1-j5A0HmilPMySh4jaz80Rs265t44=
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "~1.0.0"
+    process-nextick-args "~1.0.6"
+    string_decoder "~0.10.x"
+    util-deprecate "~1.0.1"
+
 readdirp@^2.0.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.2.1.tgz#0e87622a3325aa33e892285caf8b4e846529a525"
@@ -6930,7 +6828,7 @@ request-progress@^2.0.1:
   dependencies:
     throttleit "^1.0.0"
 
-request@2.88.0, request@^2.81.0, request@^2.87.0, request@^2.88.0:
+request@^2.81.0, request@^2.87.0, request@^2.88.0:
   version "2.88.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
   integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
@@ -6961,14 +6859,6 @@ require-main-filename@^1.0.1:
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
   integrity sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=
 
-require-uncached@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
-  integrity sha1-Tg1W1slmL9MeQwEcS5WqSZVUIdM=
-  dependencies:
-    caller-path "^0.1.0"
-    resolve-from "^1.0.0"
-
 requires-port@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
@@ -6982,15 +6872,10 @@ resolve-dir@^0.1.0:
     expand-tilde "^1.2.2"
     global-modules "^0.2.3"
 
-resolve-from@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
-  integrity sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=
-
-resolve-from@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
-  integrity sha1-six699nWiBvItuZTM17rywoYh0g=
+resolve-from@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
+  integrity sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==
 
 resolve-url@^0.2.1:
   version "0.2.1"
@@ -7041,11 +6926,11 @@ right-pad@^1.0.1:
   integrity sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=
 
 rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.0, rimraf@^2.6.1, rimraf@^2.6.2, rimraf@~2.6.2:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
-  integrity sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
+  integrity sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==
   dependencies:
-    glob "^7.0.5"
+    glob "^7.1.3"
 
 ripemd160@^2.0.0, ripemd160@^2.0.1:
   version "2.0.2"
@@ -7062,15 +6947,7 @@ rollup-plugin-alias@^1.3.1:
   dependencies:
     slash "^2.0.0"
 
-rollup-plugin-babel@^4.0.1:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-babel/-/rollup-plugin-babel-4.1.0.tgz#c97f50c82aa8e89ddaa116cdc5c832b8ba74db17"
-  integrity sha512-4IYv/yTNyH4P/Cma1mWdqy42gc051i1mTe/6oe8F055WzJGSb2qs1mSDwZTo93wA6kMBgHBIR/OcBk7JMnL59Q==
-  dependencies:
-    "@babel/helper-module-imports" "^7.0.0"
-    rollup-pluginutils "^2.3.0"
-
-rollup-plugin-buble@^0.19.2:
+rollup-plugin-buble@^0.19.6:
   version "0.19.6"
   resolved "https://registry.yarnpkg.com/rollup-plugin-buble/-/rollup-plugin-buble-0.19.6.tgz#55ee0995d8870d536f01f4277c3eef4276e8747e"
   integrity sha512-El5Fut4/wEO17ZN/n9BZvqd7DXXB2WbJr/DKvr89LXChC/cHllE0XwiUDeAalrTkgr0WrnyLDTCQvEv+cGywWQ==
@@ -7122,7 +6999,7 @@ rollup-pluginutils@^1.5.2:
     estree-walker "^0.2.1"
     minimatch "^3.0.2"
 
-rollup-pluginutils@^2.0.1, rollup-pluginutils@^2.3.0, rollup-pluginutils@^2.3.3:
+rollup-pluginutils@^2.0.1, rollup-pluginutils@^2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/rollup-pluginutils/-/rollup-pluginutils-2.3.3.tgz#3aad9b1eb3e7fe8262820818840bf091e5ae6794"
   integrity sha512-2XZwja7b6P5q4RZ5FhyX1+f46xi1Z3qBKigLRZ6VTZjwbN0K1IFGMlwm06Uu0Emcre2Z63l77nq/pzn+KxIEoA==
@@ -7130,13 +7007,14 @@ rollup-pluginutils@^2.0.1, rollup-pluginutils@^2.3.0, rollup-pluginutils@^2.3.3:
     estree-walker "^0.5.2"
     micromatch "^2.3.11"
 
-rollup@^0.68.1:
-  version "0.68.1"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-0.68.1.tgz#40d03872d3b05848fb023b12ebf7c6d69cab84c5"
-  integrity sha512-8DNKos2p/B7gDoxI42kyIHHX8d+Zt+bwhjUgXnTqnSP+CSPkRNNIQyHIcTqeGdYWR70qG6c1DaRcrjWAiG6Akg==
+rollup@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-1.0.2.tgz#df88abda5cfe96afaa07dbd540510f87e60d1baf"
+  integrity sha512-FkkSrWUVo1WliS+/GIgEmKQPILubgVdBRTWampfdhkasxx7sM2nfwSfKiX3paIBVnN0HG3DvkTy13RfjkyBX9w==
   dependencies:
     "@types/estree" "0.0.39"
     "@types/node" "*"
+    acorn "^6.0.4"
 
 run-async@^2.2.0:
   version "2.3.0"
@@ -7181,7 +7059,7 @@ safe-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-sauce-connect-launcher@^1.2.2:
+sauce-connect-launcher@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sauce-connect-launcher/-/sauce-connect-launcher-1.2.4.tgz#8d38f85242a9fbede1b2303b559f7e20c5609a1c"
   integrity sha512-X2vfwulR6brUGiicXKxPm1GJ7dBEeP1II450Uv4bHGrcGOapZNgzJvn9aioea5IC5BPp/7qjKdE3xbbTBIVXMA==
@@ -7192,19 +7070,19 @@ sauce-connect-launcher@^1.2.2:
     lodash "^4.16.6"
     rimraf "^2.5.4"
 
-saucelabs@^1.4.0:
+saucelabs@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.5.0.tgz#9405a73c360d449b232839919a86c396d379fd9d"
   integrity sha512-jlX3FGdWvYf4Q3LFfFWS1QvPg3IGCGWxIc8QBFdPTbpTJnt/v17FHXYVAn7C8sHf1yUXo2c7yIM0isDryfYtHQ==
   dependencies:
     https-proxy-agent "^2.2.1"
 
-sax@^1.2.4:
+sax@>=0.6.0, sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
-schema-utils@^0.4.4, schema-utils@^0.4.5:
+schema-utils@^0.4.4:
   version "0.4.7"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.7.tgz#ba74f597d2be2ea880131746ee17d0a093c68187"
   integrity sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==
@@ -7226,6 +7104,16 @@ selenium-server@^2.53.1:
   resolved "https://registry.yarnpkg.com/selenium-server/-/selenium-server-2.53.1.tgz#d681528812f3c2e0531a6b7e613e23bb02cce8a6"
   integrity sha1-1oFSiBLzwuBTGmt+YT4juwLM6KY=
 
+selenium-webdriver@^4.0.0-alpha.1:
+  version "4.0.0-alpha.1"
+  resolved "https://registry.yarnpkg.com/selenium-webdriver/-/selenium-webdriver-4.0.0-alpha.1.tgz#cc93415e21d2dc1dfd85dfc5f6b55f3ac53933b1"
+  integrity sha512-z88rdjHAv3jmTZ7KSGUkTvo4rGzcDGMq0oXWHNIDK96Gs31JKVdu9+FMtT4KBrVoibg8dUicJDok6GnqqttO5Q==
+  dependencies:
+    jszip "^3.1.3"
+    rimraf "^2.5.4"
+    tmp "0.0.30"
+    xml2js "^0.4.17"
+
 semver-compare@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/semver-compare/-/semver-compare-1.0.0.tgz#0dee216a1c941ab37e9efb1788f6afc5ff5537fc"
@@ -7242,9 +7130,9 @@ semver@~5.0.1:
   integrity sha1-d0Zt5YnNXTyV8TiqeLxWmjy10no=
 
 serialize-javascript@^1.3.0, serialize-javascript@^1.4.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.5.0.tgz#1aa336162c88a890ddad5384baebc93a655161fe"
-  integrity sha512-Ga8c8NjAAp46Br4+0oZ2WxJCwIzwP60Gq1YPgU+39PiTVxyed/iKE/zyZI6+UlVYH5Q4PaQdHhcegIFPZTUfoQ==
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.6.1.tgz#4d1f697ec49429a847ca6f442a2a755126c4d879"
+  integrity sha512-A5MOagrPFga4YaKQSWHryl7AXvbQkEqpw4NNYMTNYUNV51bA8ABHgYFpqKx+YFFrw59xMV1qGH1R4AgoNIVgCw==
 
 set-blocking@~2.0.0:
   version "2.0.0"
@@ -7324,6 +7212,13 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
+simple-git@^1.85.0:
+  version "1.107.0"
+  resolved "https://registry.yarnpkg.com/simple-git/-/simple-git-1.107.0.tgz#12cffaf261c14d6f450f7fdb86c21ccee968b383"
+  integrity sha512-t4OK1JRlp4ayKRfcW6owrWcRVLyHRUlhGd0uN6ZZTqfDq8a5XpcUdOKiGRNobHEuMtNqzp0vcJNvhYWwh5PsQA==
+  dependencies:
+    debug "^4.0.1"
+
 slash@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-2.0.0.tgz#de552851a1759df3a8f206535442f5ec4ddeab44"
@@ -7574,10 +7469,10 @@ ssri@^6.0.1:
   dependencies:
     figgy-pudding "^3.5.1"
 
-staged-git-files@1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.1.tgz#37c2218ef0d6d26178b1310719309a16a59f8f7b"
-  integrity sha512-H89UNKr1rQJvI1c/PIR3kiAMBV23yvR7LItZiV74HWZwzt7f3YHuujJ9nJZlt58WlFox7XQsOahexwk7nTe69A==
+staged-git-files@1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.2.tgz#4326d33886dc9ecfa29a6193bf511ba90a46454b"
+  integrity sha512-0Eyrk6uXW6tg9PYkhi/V/J4zHp33aNyi2hOCmhFLqLTIhbgqWn5jlSzI+IU0VqrZq6+DbHcabQl/WP6P3BG0QA==
 
 static-extend@^0.1.1:
   version "0.1.2"
@@ -7790,19 +7685,6 @@ tapable@^1.0.0, tapable@^1.1.0:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.1.tgz#4d297923c5a72a42360de2ab52dadfaaec00018e"
   integrity sha512-9I2ydhj8Z9veORCw5PRm4u9uebCn0mcCa6scWoNcbZ6dAtoo2618u9UUzxgmsCOreJpqDDuv61LvwofW7hLcBA==
 
-tar-stream@^1.5.0:
-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.2.tgz#8ea55dab37972253d9a9af90fdcd559ae435c555"
-  integrity sha512-rzS0heiNf8Xn7/mpdSVVSMAWAoy9bfb1WOTYC78Z0UQKeKa/CWS8FOq0lKGNa8DWKAn9gxjCvMLYc5PGXYlK2A==
-  dependencies:
-    bl "^1.0.0"
-    buffer-alloc "^1.2.0"
-    end-of-stream "^1.0.0"
-    fs-constants "^1.0.0"
-    readable-stream "^2.3.0"
-    to-buffer "^1.1.1"
-    xtend "^4.0.0"
-
 tar@^4:
   version "4.4.8"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.8.tgz#b19eec3fde2a96e64666df9fdb40c5ca1bc3747d"
@@ -7825,9 +7707,9 @@ tcp-port-used@^1.0.1:
     is2 "2.0.1"
 
 terser-webpack-plugin@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.1.0.tgz#cf7c25a1eee25bf121f4a587bb9e004e3f80e528"
-  integrity sha512-61lV0DSxMAZ8AyZG7/A4a3UPlrbOBo8NIQ4tJzLPAdGOQ+yoNC7l5ijEow27lBAL2humer01KLS6bGIMYQxKoA==
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.2.1.tgz#7545da9ae5f4f9ae6a0ac961eb46f5e7c845cc26"
+  integrity sha512-GGSt+gbT0oKcMDmPx4SRSfJPE1XaN3kQRWG4ghxKQw9cn5G9x6aCKSsgYdvyM0na9NJ4Drv0RG6jbBByZ5CMjw==
   dependencies:
     cacache "^11.0.2"
     find-cache-dir "^2.0.0"
@@ -7839,9 +7721,9 @@ terser-webpack-plugin@^1.1.0:
     worker-farm "^1.5.2"
 
 terser@^3.10.2, terser@^3.8.1:
-  version "3.13.1"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-3.13.1.tgz#a02e8827fb9705fe7b609c31093d010b28cea8eb"
-  integrity sha512-ogyZye4DFqOtMzT92Y3Nxxw8OvXmL39HOALro4fc+EUYFFF9G/kk0znkvwMz6PPYgBtdKAodh3FPR70eugdaQA==
+  version "3.14.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-3.14.1.tgz#cc4764014af570bc79c79742358bd46926018a32"
+  integrity sha512-NSo3E99QDbYSMeJaEk9YW2lTg3qS9V0aKGlb+PlOrei1X02r1wSBHCNX/O+yeTRFSWPKPIGj6MqvvdqV4rnVGw==
   dependencies:
     commander "~2.17.1"
     source-map "~0.6.1"
@@ -7897,6 +7779,13 @@ timers-browserify@^2.0.4:
   dependencies:
     setimmediate "^1.0.4"
 
+tmp@0.0.30:
+  version "0.0.30"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.30.tgz#72419d4a8be7d6ce75148fd8b324e593a711c2ed"
+  integrity sha1-ckGdSovn1s51FI/YsyTlk6cRwu0=
+  dependencies:
+    os-tmpdir "~1.0.1"
+
 tmp@0.0.33, tmp@0.0.x, tmp@^0.0.33:
   version "0.0.33"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
@@ -7921,11 +7810,6 @@ to-arraybuffer@^1.0.0:
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
   integrity sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M=
 
-to-buffer@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/to-buffer/-/to-buffer-1.1.1.tgz#493bd48f62d7c43fcded313a03dcadb2e1213a80"
-  integrity sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg==
-
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
@@ -8214,11 +8098,6 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-vargs@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/vargs/-/vargs-0.1.0.tgz#6b6184da6520cc3204ce1b407cac26d92609ebff"
-  integrity sha1-a2GE2mUgzDIEzhtAfKwm2SYJ6/8=
-
 verror@1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
@@ -8259,23 +8138,10 @@ watchpack@^1.5.0:
     graceful-fs "^4.1.2"
     neo-async "^2.5.0"
 
-wd@^1.4.0:
-  version "1.11.1"
-  resolved "https://registry.yarnpkg.com/wd/-/wd-1.11.1.tgz#21a33e21977ad20522bb189f6529c3b55ac3862c"
-  integrity sha512-XNK6EbOrXF7cG8f3pbps6mb/+xPGZH2r1AL1zGJluGynA/Xt6ip1Tvqj2AkavyDFworreaGXoe+0AP/r7EX9pg==
-  dependencies:
-    archiver "2.1.1"
-    async "2.0.1"
-    lodash "4.17.11"
-    mkdirp "^0.5.1"
-    q "1.4.1"
-    request "2.88.0"
-    vargs "0.1.0"
-
 webpack-dev-middleware@^3.2.0:
-  version "3.4.0"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz#1132fecc9026fd90f0ecedac5cbff75d1fb45890"
-  integrity sha512-Q9Iyc0X9dP9bAsYskAVJ/hmIZZQwf/3Sy4xCAZgL5cUkjZmUZLt4l5HpbST/Pdgjn3u6pE7u5OdGd1apgzRujA==
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.5.0.tgz#fff0a07b0461314fb6ca82df3642c2423f768429"
+  integrity sha512-1Zie7+dMr4Vv3nGyhr8mxGQkzTQK1PTS8K3yJ4yB1mfRGwO1DzQibgmNfUqbEfQY6eEtEEUzC+o7vhpm/Sfn5w==
   dependencies:
     memory-fs "~0.4.1"
     mime "^2.3.1"
@@ -8299,9 +8165,9 @@ webpack-sources@^1.1.0, webpack-sources@^1.3.0:
     source-map "~0.6.1"
 
 webpack@^4.22.0:
-  version "4.28.1"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.28.1.tgz#d0e2856e75d1224b170bf16c30b6ca9b75f0d958"
-  integrity sha512-qAS7BFyS5iuOZzGJxyDXmEI289h7tVNtJ5XMxf6Tz55J2riOyH42uaEsWF0F32TRaI+54SmI6qRgHM3GzsZ+sQ==
+  version "4.28.3"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.28.3.tgz#8acef6e77fad8a01bfd0c2b25aa3636d46511874"
+  integrity sha512-vLZN9k5I7Nr/XB1IDG9GbZB4yQd1sPuvufMFgJkx0b31fi2LD97KQIjwjxE7xytdruAYfu5S0FLBLjdxmwGJCg==
   dependencies:
     "@webassemblyjs/ast" "1.7.11"
     "@webassemblyjs/helper-module-context" "1.7.11"
@@ -8412,6 +8278,19 @@ ws@~3.3.1:
     safe-buffer "~5.1.0"
     ultron "~1.1.0"
 
+xml2js@^0.4.17:
+  version "0.4.19"
+  resolved "https://registry.yarnpkg.com/xml2js/-/xml2js-0.4.19.tgz#686c20f213209e94abf0d1bcf1efaa291c7827a7"
+  integrity sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==
+  dependencies:
+    sax ">=0.6.0"
+    xmlbuilder "~9.0.1"
+
+xmlbuilder@~9.0.1:
+  version "9.0.7"
+  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
+  integrity sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=
+
 xmlhttprequest-ssl@~1.5.4:
   version "1.5.5"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz#c2876b06168aadc40e57d97e81191ac8f4398b3e"
@@ -8454,22 +8333,12 @@ yeast@0.1.2:
   resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
   integrity sha1-AI4G2AlDIMNy28L47XagymyKxBk=
 
-yorkie@^1.0.1:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/yorkie/-/yorkie-1.0.3.tgz#5c05db48c012def99c29b79685b6ba2e40c8c671"
-  integrity sha512-D6MU1N72vv/as9VvDBS8syz8FS9gDPUwP6ILp/vU/PYnTdHrK4qeC7qNabc/CrEtI4mNpWX2dxVvzktQBh8BAA==
+yorkie@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/yorkie/-/yorkie-2.0.0.tgz#92411912d435214e12c51c2ae1093e54b6bb83d9"
+  integrity sha512-jcKpkthap6x63MB4TxwCyuIGkV0oYP/YRyuQU5UO0Yz/E/ZAu+653/uov+phdmO54n6BcvFRyyt0RRrWdN2mpw==
   dependencies:
     execa "^0.8.0"
     is-ci "^1.0.10"
     normalize-path "^1.0.0"
     strip-indent "^2.0.0"
-
-zip-stream@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04"
-  integrity sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ=
-  dependencies:
-    archiver-utils "^1.3.0"
-    compress-commons "^1.2.0"
-    lodash "^4.8.0"
-    readable-stream "^2.0.0"

From d278da20a008a61ed8d5ec9d92524eb5dc9630cf Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 7 Jan 2019 12:15:15 -0500
Subject: [PATCH 684/911] test: fix LRU upgrade

---
 test/ssr/ssr-bundle-render.spec.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/ssr/ssr-bundle-render.spec.js b/test/ssr/ssr-bundle-render.spec.js
index fd4df44a706..ce7f8780a90 100644
--- a/test/ssr/ssr-bundle-render.spec.js
+++ b/test/ssr/ssr-bundle-render.spec.js
@@ -195,7 +195,7 @@ function createAssertions (runInNewContext) {
   })
 
   it('render with cache (nested)', done => {
-    const cache = LRU({ maxAge: Infinity })
+    const cache = new LRU({ maxAge: Infinity })
     spyOn(cache, 'get').and.callThrough()
     spyOn(cache, 'set').and.callThrough()
     const options = {

From 583dd01158a4dec1df5a101d1bba68cb8e17a60a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 7 Jan 2019 16:47:18 -0500
Subject: [PATCH 685/911] refactor(parser): move element self processing to
 after children

This allows element processing logic to be based on its sub tree
content, e.g. $slot usage detection
---
 src/compiler/parser/index.js | 119 +++++++++++++++++++----------------
 1 file changed, 66 insertions(+), 53 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 55b8da7cf4b..7905d84b597 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -97,6 +97,40 @@ export function parse (
   }
 
   function closeElement (element) {
+    if (!inVPre && !element.processed) {
+      element = processElement(element, options, currentParent)
+    }
+    // tree management
+    if (!stack.length && element !== root) {
+      // allow root elements with v-if, v-else-if and v-else
+      if (root.if && (element.elseif || element.else)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkRootConstraints(element)
+        }
+        addIfCondition(root, {
+          exp: element.elseif,
+          block: element
+        })
+      } else if (process.env.NODE_ENV !== 'production') {
+        warnOnce(
+          `Component template should contain exactly one root element. ` +
+          `If you are using v-if on multiple elements, ` +
+          `use v-else-if to chain them instead.`,
+          { start: element.start }
+        )
+      }
+    }
+    if (currentParent && !element.forbidden) {
+      if (element.elseif || element.else) {
+        processIfConditions(element, currentParent)
+      } else if (element.slotScope) { // scoped slot
+        const name = element.slotTarget || '"default"'
+        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element
+      } else {
+        currentParent.children.push(element)
+        element.parent = currentParent
+      }
+    }
     // check pre state
     if (element.pre) {
       inVPre = false
@@ -110,6 +144,23 @@ export function parse (
     }
   }
 
+  function checkRootConstraints (el) {
+    if (el.tag === 'slot' || el.tag === 'template') {
+      warnOnce(
+        `Cannot use <${el.tag}> as component root element because it may ` +
+        'contain multiple nodes.',
+        { start: el.start }
+      )
+    }
+    if (el.attrsMap.hasOwnProperty('v-for')) {
+      warnOnce(
+        'Cannot use v-for on stateful component root element because ' +
+        'it renders multiple elements.',
+        el.rawAttrsMap['v-for']
+      )
+    }
+  }
+
   parseHTML(template, {
     warn,
     expectHTML: options.expectHTML,
@@ -174,62 +225,15 @@ export function parse (
         processFor(element)
         processIf(element)
         processOnce(element)
-        // element-scope stuff
-        processElement(element, options)
       }
 
-      function checkRootConstraints (el) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              `Cannot use <${el.tag}> as component root element because it may ` +
-              'contain multiple nodes.',
-              { start: el.start }
-            )
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.',
-              el.rawAttrsMap['v-for']
-            )
-          }
-        }
-      }
-
-      // tree management
       if (!root) {
         root = element
-        checkRootConstraints(root)
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element)
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          })
-        } else if (process.env.NODE_ENV !== 'production') {
-          warnOnce(
-            `Component template should contain exactly one root element. ` +
-            `If you are using v-if on multiple elements, ` +
-            `use v-else-if to chain them instead.`,
-            { start: element.start }
-          )
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent)
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false
-          const name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element
-        } else {
-          currentParent.children.push(element)
-          element.parent = currentParent
+        if (process.env.NODE_ENV !== 'production') {
+          checkRootConstraints(root)
         }
       }
+
       if (!unary) {
         currentParent = element
         stack.push(element)
@@ -370,20 +374,29 @@ function processRawAttrs (el) {
   }
 }
 
-export function processElement (element: ASTElement, options: CompilerOptions) {
+export function processElement (
+  element: ASTElement,
+  options: CompilerOptions,
+  parent: ASTElement | undefined
+) {
   processKey(element)
 
   // determine whether this is a plain element after
   // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length
+  element.plain = (
+    !element.key &&
+    !element.scopedSlots &&
+    !element.attrsList.length
+  )
 
   processRef(element)
-  processSlot(element)
+  processSlot(element, parent)
   processComponent(element)
   for (let i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element
   }
   processAttrs(element)
+  return element
 }
 
 function processKey (el) {

From 91327300355a6e52b39da0d5c95cc45563cbb021 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 7 Jan 2019 18:22:22 -0500
Subject: [PATCH 686/911] refactor(codegen): simplify conditions

---
 src/compiler/codegen/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 5acc548a629..d09bacdf7be 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -27,7 +27,7 @@ export class CodegenState {
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData')
     this.directives = extend(extend({}, baseDirectives), options.directives)
     const isReservedTag = options.isReservedTag || no
-    this.maybeComponent = (el: ASTElement) => !(isReservedTag(el.tag) && !el.component)
+    this.maybeComponent = (el: ASTElement) => el.component || !isReservedTag(el.tag)
     this.onceId = 0
     this.staticRenderFns = []
     this.pre = false

From 7988a5541cd6e9a9be28b4905d69c44ddcb3878e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 7 Jan 2019 22:26:44 -0500
Subject: [PATCH 687/911] feat: support scoped-slot usage with $slot

---
 flow/compiler.js                              |  9 +-
 src/compiler/codegen/index.js                 |  2 +-
 src/compiler/optimizer.js                     |  3 +-
 src/compiler/parser/index.js                  | 83 +++++++++++++++++--
 .../component/component-scoped-slot.spec.js   | 59 +++++++++++++
 5 files changed, 146 insertions(+), 10 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index de1e2df9a4a..509633e33ca 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -85,7 +85,7 @@ declare type ASTDirective = {
   end?: number;
 };
 
-declare type ASTNode = ASTElement | ASTText | ASTExpression;
+declare type ASTNode = ASTElement | ASTText | ASTExpression
 
 declare type ASTElement = {
   type: 1;
@@ -167,6 +167,9 @@ declare type ASTElement = {
 
   // weex specific
   appendAsTree?: boolean;
+
+  // 2.6 $slot check
+  has$Slot?: boolean
 };
 
 declare type ASTExpression = {
@@ -179,6 +182,8 @@ declare type ASTExpression = {
   ssrOptimizability?: number;
   start?: number;
   end?: number;
+  // 2.6 $slot check
+  has$Slot?: boolean
 };
 
 declare type ASTText = {
@@ -190,6 +195,8 @@ declare type ASTText = {
   ssrOptimizability?: number;
   start?: number;
   end?: number;
+  // 2.6 $slot check
+  has$Slot?: boolean
 };
 
 // SFC-parser related declarations
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index d09bacdf7be..bdd76be0033 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -27,7 +27,7 @@ export class CodegenState {
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData')
     this.directives = extend(extend({}, baseDirectives), options.directives)
     const isReservedTag = options.isReservedTag || no
-    this.maybeComponent = (el: ASTElement) => el.component || !isReservedTag(el.tag)
+    this.maybeComponent = (el: ASTElement) => !!el.component || !isReservedTag(el.tag)
     this.onceId = 0
     this.staticRenderFns = []
     this.pre = false
diff --git a/src/compiler/optimizer.js b/src/compiler/optimizer.js
index 5f56e74cdee..39b8737b2fa 100644
--- a/src/compiler/optimizer.js
+++ b/src/compiler/optimizer.js
@@ -30,7 +30,7 @@ export function optimize (root: ?ASTElement, options: CompilerOptions) {
 
 function genStaticKeys (keys: string): Function {
   return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap,has$Slot' +
     (keys ? ',' + keys : '')
   )
 }
@@ -43,6 +43,7 @@ function markStatic (node: ASTNode) {
     // 2. static slot content fails for hot-reloading
     if (
       !isPlatformReservedTag(node.tag) &&
+      !node.component &&
       node.tag !== 'slot' &&
       node.attrsMap['inline-template'] == null
     ) {
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 7905d84b597..9cb95b3e47a 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -5,7 +5,7 @@ import { parseHTML } from './html-parser'
 import { parseText } from './text-parser'
 import { parseFilters } from './filter-parser'
 import { genAssignmentCode } from '../directives/model'
-import { extend, cached, no, camelize, hyphenate } from 'shared/util'
+import { extend, cached, no, camelize, hyphenate, hasOwn } from 'shared/util'
 import { isIE, isEdge, isServerRendering } from 'core/util/env'
 
 import {
@@ -44,6 +44,7 @@ let postTransforms
 let platformIsPreTag
 let platformMustUseProp
 let platformGetTagNamespace
+let maybeComponent
 
 export function createASTElement (
   tag: string,
@@ -73,6 +74,8 @@ export function parse (
   platformIsPreTag = options.isPreTag || no
   platformMustUseProp = options.mustUseProp || no
   platformGetTagNamespace = options.getTagNamespace || no
+  const isReservedTag = options.isReservedTag || no
+  maybeComponent = (el: ASTElement) => !!el.component || !isReservedTag(el.tag)
 
   transforms = pluckModuleFunction(options.modules, 'transformNode')
   preTransforms = pluckModuleFunction(options.modules, 'preTransformNode')
@@ -98,7 +101,7 @@ export function parse (
 
   function closeElement (element) {
     if (!inVPre && !element.processed) {
-      element = processElement(element, options, currentParent)
+      element = processElement(element, options)
     }
     // tree management
     if (!stack.length && element !== root) {
@@ -152,7 +155,7 @@ export function parse (
         { start: el.start }
       )
     }
-    if (el.attrsMap.hasOwnProperty('v-for')) {
+    if (hasOwn(el.attrsMap, 'v-for')) {
       warnOnce(
         'Cannot use v-for on stateful component root element because ' +
         'it renders multiple elements.',
@@ -376,8 +379,7 @@ function processRawAttrs (el) {
 
 export function processElement (
   element: ASTElement,
-  options: CompilerOptions,
-  parent: ASTElement | undefined
+  options: CompilerOptions
 ) {
   processKey(element)
 
@@ -390,7 +392,7 @@ export function processElement (
   )
 
   processRef(element)
-  processSlot(element, parent)
+  processSlot(element)
   processComponent(element)
   for (let i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element
@@ -581,19 +583,86 @@ function processSlot (el) {
         )
       }
       el.slotScope = slotScope
+      if (process.env.NODE_ENV !== 'production' && nodeHas$Slot(el)) {
+        warn('Unepxected mixed usage of `slot-scope` and `$slot`.', el)
+      }
+    } else {
+      // 2.6 $slot support
+      // Context: https://github.com/vuejs/vue/issues/9180
+      // Ideally, all slots should be compiled as functions (this is what we
+      // are doing in 3.x), but for 2.x e want to preserve complete backwards
+      // compatibility, and maintain the exact same compilation output for any
+      // code that does not use the new syntax.
+
+      // recursively check component children for presence of `$slot` in all
+      // expressions until running into a nested child component.
+      if (maybeComponent(el) && childrenHas$Slot(el)) {
+        processScopedSlots(el)
+      }
     }
     const slotTarget = getBindingAttr(el, 'slot')
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
+      if (el.tag !== 'template' && !el.slotScope && !nodeHas$Slot(el)) {
         addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'))
       }
     }
   }
 }
 
+function childrenHas$Slot (el): boolean {
+  return el.children ? el.children.some(nodeHas$Slot) : false
+}
+
+const $slotRE = /\$slot/
+function nodeHas$Slot (node): boolean {
+  // caching
+  if (hasOwn(node, 'has$Slot')) {
+    return (node.has$Slot: any)
+  }
+  if (node.type === 1) { // element
+    for (const key in node.attrsMap) {
+      if (dirRE.test(key) && $slotRE.test(node.attrsMap[key])) {
+        return (node.has$Slot = true)
+      }
+    }
+    return (node.has$Slot = childrenHas$Slot(node))
+  } else if (node.type === 2) { // expression
+    // TODO more robust logic for checking $slot usage
+    return (node.has$Slot = $slotRE.test(node.expression))
+  }
+  return false
+}
+
+function processScopedSlots (el) {
+  // 1. group children by slot target
+  const groups: any = {}
+  for (let i = 0; i < el.children.length; i++) {
+    const child = el.children[i]
+    const target = child.slotTarget || '"default"'
+    if (!groups[target]) {
+      groups[target] = []
+    }
+    groups[target].push(child)
+  }
+  // 2. for each slot group, check if the group contains $slot
+  for (const name in groups) {
+    const group = groups[name]
+    if (group.some(nodeHas$Slot)) {
+      // 3. if a group contains $slot, all nodes in that group gets assigned
+      // as a scoped slot to el and removed from children
+      el.plain = false
+      const slots = el.scopedSlots || (el.scopedSlots = {})
+      const slotContainer = slots[name] = createASTElement('template', [], el)
+      slotContainer.children = group
+      slotContainer.slotScope = '$slot'
+      el.children = el.children.filter(c => group.indexOf(c) === -1)
+    }
+  }
+}
+
 function processComponent (el) {
   let binding
   if ((binding = getBindingAttr(el, 'is'))) {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index c327141bd67..aa9e12cbf84 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -613,4 +613,63 @@ describe('Component scoped slot', () => {
       expect(vm.$el.innerHTML).toBe('<p>hello</p>')
     }).then(done)
   })
+
+  // 2.6 $slot usage
+  describe('$slot support', () => {
+    it('should work', () => {
+      const vm = new Vue({
+        template: `<foo><div>{{$slot.foo}}</div></foo>`,
+        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`<div>hello</div>`)
+    })
+
+    it('should work for use of $slots in attributes', () => {
+      const vm = new Vue({
+        template: `<foo><div :id="$slot.foo"></div></foo>`,
+        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`<div id="hello"></div>`)
+    })
+
+    it('should work for root text nodes', () => {
+      const vm = new Vue({
+        template: `<foo>{{$slot.foo}}</foo>`,
+        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`hello`)
+    })
+
+    it('should work for mix of root text nodes and elements', () => {
+      const vm = new Vue({
+        template: `<foo>hi <div>{{ $slot.foo }}</div>{{$slot.foo}}</foo>`,
+        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`hi <div>hello</div>hello`)
+    })
+
+    it('should work for named slots', () => {
+      const vm = new Vue({
+        template: `<foo><div slot="foo">{{ $slot.foo }}</div></foo>`,
+        components: { foo: { template: `<div><slot name="foo" foo="hello"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`<div>hello</div>`)
+    })
+
+    it('should work for mixed default and named slots', () => {
+      const vm = new Vue({
+        template: `<foo>{{ $slot.foo }}<div>{{ $slot.foo }}</div><div slot="foo">{{ $slot.foo }}</div></foo>`,
+        components: { foo: { template: `<div><slot foo="default"/><slot name="foo" foo="foo"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>foo</div>`)
+    })
+
+    it('should work for mixed $slot and non-$slot slots', () => {
+      const vm = new Vue({
+        template: `<foo>{{ $slot.foo }}<div slot="foo">static</div><div>{{ $slot.foo }}</div></foo>`,
+        components: { foo: { template: `<div><slot foo="default"/><slot name="foo"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>static</div>`)
+    })
+  })
 })

From cf42f8e870f34e59e19f9cbf7ac6309c3c9c160c Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Wed, 9 Jan 2019 12:52:30 -0500
Subject: [PATCH 688/911] chore: update sponsors [ci skip] (#9296)

[automated] Patreon sponsors update
---
 BACKERS.md | 47 +++++++++++++++++++++--------------------------
 README.md  | 30 +++++++++++++++---------------
 2 files changed, 36 insertions(+), 41 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 78b783482af..71b6a7e1183 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -32,7 +32,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <tr>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -104,23 +104,23 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://htmlburger.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
+        <a href="https://chaitin.cn/en/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://chaitin.cn/en/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
+        <a href="https://htmlburger.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/html_burger.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://www.frontenddeveloperlove.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend_love.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://onsen.io/vue/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen_ui.png">
         </a>
       </td>
     </tr><tr></tr>
@@ -137,17 +137,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="https://icons8.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons_8.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -184,19 +184,19 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="https://www.firesticktricks.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firesticks.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firestick_tricks.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
         <a href="https://github.com/marcus-hiles" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcushiles.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/ioc.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
     </tr><tr></tr>
@@ -255,32 +255,27 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <tr>
       <td align="center" valign="middle">
         <a href="http://tighten.co/" target="_blank">
-          <img width="148px" src="http://i.imgur.com/T7fQYLT.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tighten_co.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://alligator.io" target="_blank">
-          <img width="148px" src="https://alligator.io/images/alligator-logo.svg">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/alligator_io.svg">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://www.accelebrate.com/" target="_blank">
-          <img width="148px" src="https://www.accelebrate.com/assets/images/accelebrate_logo@2x.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/accelebrate.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://pullstring.com" target="_blank">
-          <img width="148px" src="https://i.imgur.com/hQHW6TB.png">
+        <a href="https://polyglotengineer.com/derek.pollard" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/derek_pollard.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://www.earthlink.ro" target="_blank">
-          <img width="148px" src="https://i.imgur.com/qX0SNa7.png">
-        </a>
-      </td>
-      <td align="center" valign="middle">
-        <a href="https://polyglotengineer.com/derek.pollard" target="_blank">
-          <img width="148px" src="https://polyglotengineer.com/DP.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/earthlink.png">
         </a>
       </td>
     </tr><tr></tr>
diff --git a/README.md b/README.md
index 0f3999237c3..c46728e97fb 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <tr>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit-wide.png">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -109,23 +109,23 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://htmlburger.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/htmlburger.png">
+        <a href="https://chaitin.cn/en/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://chaitin.cn/en/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/chaitin.png">
+        <a href="https://htmlburger.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/html_burger.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://www.frontenddeveloperlove.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend-love.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/frontend_love.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://onsen.io/vue/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen-ui.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/onsen_ui.png">
         </a>
       </td>
     </tr><tr></tr>
@@ -142,17 +142,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="https://icons8.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons8.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/icons_8.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://vuejobs.com/?ref=vuejs" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
         </a>
       </td>
       <td align="center" valign="middle">
@@ -189,19 +189,19 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="https://www.firesticktricks.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firesticks.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firestick_tricks.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
       <td align="center" valign="middle">
         <a href="https://github.com/marcus-hiles" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcushiles.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/ioc.png">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
     </tr><tr></tr>

From 5d52262f1ce56d080c3438c4773a81dc5c8397aa Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 15:35:57 -0500
Subject: [PATCH 689/911] feat(core): expose all slots on $scopedSlots as
 functions

After this change, users using render functions can always make use
of slots via `this.$scopedSlots` without worrying about whether the
slot is being passed in as scoped or not.

This should also make it easier to migrate to 3.0 where all slots are
exposed as functions that return Array of VNodes on `this.$slots`.
---
 .../instance/render-helpers/resolve-slots.js  |  7 ++++---
 src/core/instance/render.js                   |  5 ++++-
 src/core/vdom/create-functional-component.js  |  2 +-
 .../vdom/helpers/normalize-scoped-slots.js    | 20 +++++++++++++++----
 .../component/component-scoped-slot.spec.js   | 18 +++++++++++++++++
 5 files changed, 43 insertions(+), 9 deletions(-)

diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 34d8ce26d82..533b059cd6b 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -1,6 +1,7 @@
 /* @flow */
 
 import type VNode from 'core/vdom/vnode'
+import { emptyObject } from 'core/util/index'
 
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
@@ -9,10 +10,10 @@ export function resolveSlots (
   children: ?Array<VNode>,
   context: ?Component
 ): { [key: string]: Array<VNode> } {
-  const slots = {}
-  if (!children) {
-    return slots
+  if (!children || !children.length) {
+    return emptyObject
   }
+  const slots = {}
   for (let i = 0, l = children.length; i < l; i++) {
     const child = children[i]
     const data = child.data
diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 3139f81a337..2b9c8d11951 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -64,7 +64,10 @@ export function renderMixin (Vue: Class<Component>) {
     const { render, _parentVnode } = vm.$options
 
     if (_parentVnode) {
-      vm.$scopedSlots = normalizeScopedSlots(_parentVnode.data.scopedSlots)
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      )
     }
 
     // set parent vnode. this allows render functions to have access
diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 92ebe7140f1..8b6888e49e5 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -57,7 +57,7 @@ export function FunctionalRenderContext (
     this.$options = options
     // pre-resolve slots for renderSlot()
     this.$slots = this.slots()
-    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots)
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots)
   }
 
   if (options._scopeId) {
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index d58a6c62a7a..3672d7e7758 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -2,19 +2,31 @@
 
 import { emptyObject } from 'core/util/index'
 
-export function normalizeScopedSlots (slots: { [key: string]: Function } | void): any {
+export function normalizeScopedSlots (
+  slots: { [key: string]: Function } | void,
+  normalSlots: { [key: string]: Array<VNode> }
+): any {
+  let res
   if (!slots) {
-    return emptyObject
+    if (normalSlots === emptyObject) {
+      return emptyObject
+    }
+    res = {}
   } else if (slots._normalized) {
     return slots
   } else {
-    const res = {}
+    res = {}
     for (const key in slots) {
       res[key] = normalizeScopedSlot(slots[key])
     }
     res._normalized = true
-    return res
   }
+  if (normalSlots !== emptyObject) {
+    for (const key in normalSlots) {
+      res[key] = () => normalSlots[key]
+    }
+  }
+  return res
 }
 
 function normalizeScopedSlot(fn: Function) {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index aa9e12cbf84..f633d0dc7b1 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -455,6 +455,24 @@ describe('Component scoped slot', () => {
     expect(vm.$el.outerHTML).toBe('<span>hello</span>')
   })
 
+  // new in 2.6, unifying all slots as functions
+  it('non-scoped slots should also be available on $scopedSlots', () => {
+    const vm = new Vue({
+      template: `<foo>before <div slot="bar">{{ $slot.msg }}</div> after</foo>`,
+      components: {
+        foo: {
+          render(h) {
+            return h('div', [
+              this.$scopedSlots.default(),
+              this.$scopedSlots.bar({ msg: 'hi' })
+            ])
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe(`before  after<div>hi</div>`)
+  })
+
   // #4779
   it('should support dynamic slot target', done => {
     const Child = {

From fb6aa0609045e69a0b6050bc7b6466b63be8d69d Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Wed, 9 Jan 2019 22:18:14 +0100
Subject: [PATCH 690/911] feat(functional): add scopedSlots to context in
 functional components (#7941)

---
 src/core/vdom/create-functional-component.js  |  1 +
 test/unit/features/options/functional.spec.js | 17 +++++++++++++++++
 types/options.d.ts                            |  3 ++-
 types/test/options-test.ts                    |  1 +
 4 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 8b6888e49e5..78a73def132 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -48,6 +48,7 @@ export function FunctionalRenderContext (
   this.children = children
   this.parent = parent
   this.listeners = data.on || emptyObject
+  this.scopedSlots = data.scopedSlots || emptyObject
   this.injections = resolveInject(options.inject, parent)
   this.slots = () => resolveSlots(children, parent)
 
diff --git a/test/unit/features/options/functional.spec.js b/test/unit/features/options/functional.spec.js
index b3446ac5991..a4ae7ce4377 100644
--- a/test/unit/features/options/functional.spec.js
+++ b/test/unit/features/options/functional.spec.js
@@ -79,6 +79,23 @@ describe('Options functional', () => {
     document.body.removeChild(vm.$el)
   })
 
+  it('should expose data.scopedSlots as scopedSlots', () => {
+    const vm = new Vue({
+      template: '<div><wrap><p slot-scope="a">{{ a }}</p></wrap></div>',
+      components: {
+        wrap: {
+          functional: true,
+          render (h, { scopedSlots, data }) {
+            expect(data.scopedSlots).toBe(scopedSlots)
+            return data.scopedSlots.default('a')
+          }
+        }
+      }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('a')
+  })
+
   it('should support returning more than one root node', () => {
     const vm = new Vue({
       template: `<div><test></test></div>`,
diff --git a/types/options.d.ts b/types/options.d.ts
index 0e98b4a9626..08782da550e 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -1,5 +1,5 @@
 import { Vue, CreateElement, CombinedVueInstance } from "./vue";
-import { VNode, VNodeData, VNodeDirective } from "./vnode";
+import { VNode, VNodeData, VNodeDirective, ScopedSlot } from "./vnode";
 
 type Constructor = {
   new (...args: any[]): any;
@@ -140,6 +140,7 @@ export interface RenderContext<Props=DefaultProps> {
   data: VNodeData;
   parent: Vue;
   listeners: { [key: string]: Function | Function[] };
+  scopedSlots: { [key: string]: ScopedSlot };
   injections: any
 }
 
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 4041aad44b1..de57e4c25eb 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -381,6 +381,7 @@ Vue.component('functional-component', {
     context.slots();
     context.data;
     context.parent;
+    context.scopedSlots;
     context.listeners.click;
     return createElement("div", {}, context.children);
   }

From 23a145952c20f0b7538f4591b910fd209035c683 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 16:35:39 -0500
Subject: [PATCH 691/911] refactor: adjust #7941 for slots unification

---
 src/core/vdom/create-functional-component.js    |  8 +++++++-
 src/core/vdom/helpers/normalize-scoped-slots.js |  1 +
 test/unit/features/options/functional.spec.js   | 16 ++++++++++------
 3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 78a73def132..655de0deee3 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -48,10 +48,16 @@ export function FunctionalRenderContext (
   this.children = children
   this.parent = parent
   this.listeners = data.on || emptyObject
-  this.scopedSlots = data.scopedSlots || emptyObject
   this.injections = resolveInject(options.inject, parent)
   this.slots = () => resolveSlots(children, parent)
 
+  Object.defineProperty(this, 'scopedSlots', {
+    enumerable: true,
+    get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  })
+
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 3672d7e7758..12454ebfad5 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -21,6 +21,7 @@ export function normalizeScopedSlots (
     }
     res._normalized = true
   }
+  // expose normal slots on scopedSlots
   if (normalSlots !== emptyObject) {
     for (const key in normalSlots) {
       res[key] = () => normalSlots[key]
diff --git a/test/unit/features/options/functional.spec.js b/test/unit/features/options/functional.spec.js
index a4ae7ce4377..ea85eea8a7f 100644
--- a/test/unit/features/options/functional.spec.js
+++ b/test/unit/features/options/functional.spec.js
@@ -79,21 +79,25 @@ describe('Options functional', () => {
     document.body.removeChild(vm.$el)
   })
 
-  it('should expose data.scopedSlots as scopedSlots', () => {
+  it('should expose scopedSlots on render context', () => {
     const vm = new Vue({
-      template: '<div><wrap><p slot-scope="a">{{ a }}</p></wrap></div>',
+      template: '<div><wrap>foo<p slot="p" slot-scope="a">{{ a }}</p></wrap></div>',
       components: {
         wrap: {
           functional: true,
-          render (h, { scopedSlots, data }) {
-            expect(data.scopedSlots).toBe(scopedSlots)
-            return data.scopedSlots.default('a')
+          render (h, { scopedSlots }) {
+            return [
+              // scoped
+              scopedSlots.p('a'),
+              // normal slot content should be exposed as well
+              scopedSlots.default()
+            ]
           }
         }
       }
     }).$mount()
 
-    expect(vm.$el.textContent).toBe('a')
+    expect(vm.$el.textContent).toBe('afoo')
   })
 
   it('should support returning more than one root node', () => {

From d2902ca8ec5fd184fe81479fea1318553fdb8323 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 17:31:04 -0500
Subject: [PATCH 692/911] feat: support .property shorthand syntax for
 v-bind.prop modifier

close #7582
---
 src/compiler/parser/index.js               | 13 +++++++++----
 test/unit/features/directives/bind.spec.js | 12 ++++++++++++
 test/unit/modules/compiler/parser.spec.js  | 10 ++++++++++
 3 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 9cb95b3e47a..334a25204ce 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -21,13 +21,14 @@ import {
 } from '../helpers'
 
 export const onRE = /^@|^v-on:/
-export const dirRE = /^v-|^@|^:/
+export const dirRE = /^v-|^@|^:|^\./
 export const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
 
 const argRE = /:(.*)$/
-export const bindRE = /^:|^v-bind:/
+export const bindRE = /^:|^\.|^v-bind:/
+const propBindRE = /^\./
 const modifierRE = /\.[^.]+/g
 
 const lineBreakRE = /[\r\n]/
@@ -683,8 +684,12 @@ function processAttrs (el) {
       // mark element as dynamic
       el.hasBindings = true
       // modifiers
-      modifiers = parseModifiers(name)
-      if (modifiers) {
+      modifiers = parseModifiers(name.replace(dirRE, ''))
+      // support .foo shorthand syntax for the .prop modifier
+      if (propBindRE.test(name)) {
+        (modifiers || (modifiers = {})).prop = true
+        name = `.` + name.slice(1).replace(modifierRE, '')
+      } else if (modifiers) {
         name = name.replace(modifierRE, '')
       }
       if (bindRE.test(name)) { // v-bind
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index e58802bc89c..8d7f7c4847a 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -133,6 +133,18 @@ describe('Directive v-bind', () => {
     expect(vm.$el.getAttribute('id')).toBe(null)
   })
 
+  it('.prop modifier shorthand', () => {
+    const vm = new Vue({
+      template: '<div><span .text-content="foo"></span><span .inner-html="bar"></span></div>',
+      data: {
+        foo: 'hello',
+        bar: '<span>qux</span>'
+      }
+    }).$mount()
+    expect(vm.$el.children[0].textContent).toBe('hello')
+    expect(vm.$el.children[1].innerHTML).toBe('<span>qux</span>')
+  })
+
   it('.camel modifier', () => {
     const vm = new Vue({
       template: '<svg :view-box.camel="viewBox"></svg>',
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index fd67677948f..4b7b0937b73 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -535,6 +535,16 @@ describe('parser', () => {
     expect('The value for a v-bind expression cannot be empty. Found in "v-bind:empty-msg"').toHaveBeenWarned()
   })
 
+  it('v-bind.prop shorthand syntax', () => {
+    const ast = parse('<div .id="foo"></div>', baseOptions)
+    expect(ast.props).toEqual([{ name: 'id', value: 'foo'}])
+  })
+
+  it('v-bind.prop shorthand syntax w/ modifiers', () => {
+    const ast = parse('<div .id.mod="foo"></div>', baseOptions)
+    expect(ast.props).toEqual([{ name: 'id', value: 'foo'}])
+  })
+
   // #6887
   it('special case static attribute that must be props', () => {
     const ast = parse('<video muted></video>', baseOptions)

From 02f897a4bc57fec89301918ed7c3db0c423deaae Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 17:41:37 -0500
Subject: [PATCH 693/911] chore: fix flow

---
 src/core/vdom/create-functional-component.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 655de0deee3..533fb2363f4 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -51,12 +51,12 @@ export function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent)
   this.slots = () => resolveSlots(children, parent)
 
-  Object.defineProperty(this, 'scopedSlots', {
+  Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
     get () {
       return normalizeScopedSlots(data.scopedSlots, this.slots())
     }
-  })
+  }: any))
 
   // support for compiled functional template
   if (isCompiled) {

From 3be1c5d67e8bdfc9387122317bf3779261010d45 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 20:09:50 -0500
Subject: [PATCH 694/911] feat(config): expose config.useEventDelegation and
 default to false

---
 src/core/config.js                          | 10 ++++++++++
 src/platforms/web/runtime/modules/events.js | 10 ++++++++--
 test/e2e/specs/async-edge-cases.html        |  4 ++++
 types/test/vue-test.ts                      |  1 +
 types/vue.d.ts                              |  1 +
 5 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/src/core/config.js b/src/core/config.js
index cae9d3dd395..0d8c1adb188 100644
--- a/src/core/config.js
+++ b/src/core/config.js
@@ -19,6 +19,7 @@ export type Config = {
   warnHandler: ?(msg: string, vm: Component, trace: string) => void;
   ignoredElements: Array<string | RegExp>;
   keyCodes: { [key: string]: number | Array<number> };
+  useEventDelegation: boolean;
 
   // platform
   isReservedTag: (x?: string) => boolean;
@@ -83,6 +84,15 @@ export default ({
   // $flow-disable-line
   keyCodes: Object.create(null),
 
+  /**
+   * Use event delegation - this works around a few async edge cases caused by
+   * microtask / DOM event racing conditions, and should in theory save some
+   * memory.
+   *
+   * Off by default for backwards compatibility.
+   */
+  useEventDelegation: false,
+
   /**
    * Check if a tag is reserved so that it cannot be registered as a
    * component. This is platform-dependent and may be overwritten.
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index c0b03063700..cb5097f995f 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import config from 'core/config'
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
 import { isIE, isPhantomJS, supportsPassive } from 'core/util/index'
@@ -50,7 +51,12 @@ function add (
   capture: boolean,
   passive: boolean
 ) {
-  if (!capture && !passive && delegateRE.test(name)) {
+  if (
+    !capture &&
+    !passive &&
+    config.useEventDelegation &&
+    delegateRE.test(name)
+  ) {
     const count = eventCounts[name]
     let store = target.__events
     if (!count) {
@@ -150,7 +156,7 @@ function remove (
   _target?: HTMLElement
 ) {
   const el: any = _target || target
-  if (!capture && delegateRE.test(name)) {
+  if (!capture && config.useEventDelegation && delegateRE.test(name)) {
     el.__events[name] = null
     if (--eventCounts[name] === 0) {
       removeGlobalHandler(name)
diff --git a/test/e2e/specs/async-edge-cases.html b/test/e2e/specs/async-edge-cases.html
index 4c7411b2e5d..e933b9ddaf4 100644
--- a/test/e2e/specs/async-edge-cases.html
+++ b/test/e2e/specs/async-edge-cases.html
@@ -6,6 +6,10 @@
     <script src="../../../dist/vue.min.js"></script>
   </head>
   <body>
+    <script>
+      // this is necessary to make these cases pass
+      Vue.config.useEventDelegation = true
+    </script>
 
     <!-- #4510 click and change event on checkbox -->
     <div id="case-1">
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 40ded2d29ce..1116d530e81 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -75,6 +75,7 @@ class Test extends Vue {
     config.keyCodes = { esc: 27 };
     config.ignoredElements = ['foo', /^ion-/];
     config.async = false
+    config.useEventDelegation = true
   }
 
   static testMethods() {
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 2098a694dec..327785436d2 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -74,6 +74,7 @@ export interface VueConfiguration {
   warnHandler(msg: string, vm: Vue, trace: string): void;
   ignoredElements: (string | RegExp)[];
   keyCodes: { [key: string]: number | number[] };
+  useEventDelegation: boolean;
   async: boolean;
 }
 

From 8eea6b07c415ac5c7e3a401265e6390f0e18e5b9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 22:03:51 -0500
Subject: [PATCH 695/911] refactor: avoid using immutable object for $slot

libs like Avoiraz assumes $slots is mutable, need backwards
compat.
---
 src/core/instance/render-helpers/resolve-slots.js |  3 +--
 src/core/vdom/helpers/normalize-scoped-slots.js   | 13 +++----------
 2 files changed, 4 insertions(+), 12 deletions(-)

diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 533b059cd6b..dbec386a19c 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -1,7 +1,6 @@
 /* @flow */
 
 import type VNode from 'core/vdom/vnode'
-import { emptyObject } from 'core/util/index'
 
 /**
  * Runtime helper for resolving raw children VNodes into a slot object.
@@ -11,7 +10,7 @@ export function resolveSlots (
   context: ?Component
 ): { [key: string]: Array<VNode> } {
   if (!children || !children.length) {
-    return emptyObject
+    return {}
   }
   const slots = {}
   for (let i = 0, l = children.length; i < l; i++) {
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 12454ebfad5..239d9a9019b 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -1,16 +1,11 @@
 /* @flow */
 
-import { emptyObject } from 'core/util/index'
-
 export function normalizeScopedSlots (
   slots: { [key: string]: Function } | void,
   normalSlots: { [key: string]: Array<VNode> }
 ): any {
   let res
   if (!slots) {
-    if (normalSlots === emptyObject) {
-      return emptyObject
-    }
     res = {}
   } else if (slots._normalized) {
     return slots
@@ -19,14 +14,12 @@ export function normalizeScopedSlots (
     for (const key in slots) {
       res[key] = normalizeScopedSlot(slots[key])
     }
-    res._normalized = true
   }
   // expose normal slots on scopedSlots
-  if (normalSlots !== emptyObject) {
-    for (const key in normalSlots) {
-      res[key] = () => normalSlots[key]
-    }
+  for (const key in normalSlots) {
+    res[key] = () => normalSlots[key]
   }
+  res._normalized = true
   return res
 }
 

From 4c2c6f03dc617e0b7f8ffee7539876d131506cbf Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 22:26:54 -0500
Subject: [PATCH 696/911] build: fix dev:cjs script

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 79327654c91..845f4048d82 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
   "sideEffects": false,
   "scripts": {
     "dev": "rollup -w -c scripts/config.js --environment TARGET:web-full-dev",
-    "dev:cjs": "rollup -w -c scripts/config.js --environment TARGET:web-runtime-cjs",
+    "dev:cjs": "rollup -w -c scripts/config.js --environment TARGET:web-runtime-cjs-dev",
     "dev:esm": "rollup -w -c scripts/config.js --environment TARGET:web-runtime-esm",
     "dev:test": "karma start test/unit/karma.dev.config.js",
     "dev:ssr": "rollup -w -c scripts/config.js --environment TARGET:web-server-renderer",

From 5fb23d4e2971480d14fbee0146e3416a07bc0b9f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 22:47:11 -0500
Subject: [PATCH 697/911] fix: ensure only nromalize a scoped slot when it is
 present

---
 src/core/vdom/helpers/normalize-scoped-slots.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 239d9a9019b..15aa7b134ee 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -12,7 +12,9 @@ export function normalizeScopedSlots (
   } else {
     res = {}
     for (const key in slots) {
-      res[key] = normalizeScopedSlot(slots[key])
+      if (slots[key]) {
+        res[key] = normalizeScopedSlot(slots[key])
+      }
     }
   }
   // expose normal slots on scopedSlots

From 8b382b3efb14986e9ea5213d0b57c244b70ae0e7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Jan 2019 23:46:38 -0500
Subject: [PATCH 698/911] fix: allow _ in watch paths (element compat)

---
 src/core/util/lang.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/lang.js b/src/core/util/lang.js
index f90f4ddfd9f..929ea77569f 100644
--- a/src/core/util/lang.js
+++ b/src/core/util/lang.js
@@ -30,7 +30,7 @@ export function def (obj: Object, key: string, val: any, enumerable?: boolean) {
 /**
  * Parse simple path.
  */
-const bailRE = new RegExp(`[^${unicodeLetters}.$]`)
+const bailRE = new RegExp(`[^${unicodeLetters}.$_]`)
 export function parsePath (path: string): any {
   if (bailRE.test(path)) {
     return

From 1e5174d21399eec115ae1b1930f218853311558d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 10:33:02 -0500
Subject: [PATCH 699/911] test: add more test case for watch option

---
 src/core/util/lang.js                         |  2 +-
 .../component/component-scoped-slot.spec.js   |  6 ++++
 test/unit/features/options/watch.spec.js      | 32 +++++++++++++++++++
 3 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/src/core/util/lang.js b/src/core/util/lang.js
index 929ea77569f..b9026762506 100644
--- a/src/core/util/lang.js
+++ b/src/core/util/lang.js
@@ -30,7 +30,7 @@ export function def (obj: Object, key: string, val: any, enumerable?: boolean) {
 /**
  * Parse simple path.
  */
-const bailRE = new RegExp(`[^${unicodeLetters}.$_]`)
+const bailRE = new RegExp(`[^${unicodeLetters}.$_\\d]`)
 export function parsePath (path: string): any {
   if (bailRE.test(path)) {
     return
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index f633d0dc7b1..7445489e1bd 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -689,5 +689,11 @@ describe('Component scoped slot', () => {
       }).$mount()
       expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>static</div>`)
     })
+
+    it('should not break when template expression uses $slots', () => {
+      const vm = new Vue({
+        template: ``
+      })
+    })
   })
 })
diff --git a/test/unit/features/options/watch.spec.js b/test/unit/features/options/watch.spec.js
index a14233c8314..3938bd33c92 100644
--- a/test/unit/features/options/watch.spec.js
+++ b/test/unit/features/options/watch.spec.js
@@ -1,5 +1,6 @@
 import Vue from 'vue'
 import testObjectOption from '../../../helpers/test-object-option'
+import { finished } from 'stream';
 
 describe('Options watch', () => {
   let spy
@@ -143,4 +144,35 @@ describe('Options watch', () => {
       expect(spy3).toHaveBeenCalledWith(1, 0)
     }).then(done)
   })
+
+  it('should support watching unicode paths', done => {
+    const vm = new Vue({
+      data: {
+        数据: 1
+      },
+      watch: {
+        数据: spy
+      }
+    })
+    expect(spy).not.toHaveBeenCalled()
+    vm['数据'] = 2
+    expect(spy).not.toHaveBeenCalled()
+    waitForUpdate(() => {
+      expect(spy).toHaveBeenCalledWith(2, 1)
+    }).then(done)
+  })
+
+  it('should not warn proper usage', () => {
+    const vm = new Vue({
+      data: {
+        foo: { _bar: 1 }, // element has such watchers...
+        prop1: 123
+      },
+      watch: {
+        'foo._bar': () => {},
+        prop1 () {}
+      }
+    })
+    expect(`Failed watching path`).not.toHaveBeenWarned()
+  })
 })

From d855027741d4f602cc9f507c18ede75c3e7ce84a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 11:18:06 -0500
Subject: [PATCH 700/911] test: more test cases for $slot usage detection

---
 src/compiler/parser/index.js                  |  2 +-
 .../component/component-scoped-slot.spec.js   | 27 +++++++++++++++++--
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 334a25204ce..a9a0df9d1b7 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -617,7 +617,7 @@ function childrenHas$Slot (el): boolean {
   return el.children ? el.children.some(nodeHas$Slot) : false
 }
 
-const $slotRE = /\$slot/
+const $slotRE = /(^|[^\w_$])\$slot($|[^\w_$])/
 function nodeHas$Slot (node): boolean {
   // caching
   if (hasOwn(node, 'has$Slot')) {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 7445489e1bd..0956dd6604f 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -690,10 +690,33 @@ describe('Component scoped slot', () => {
       expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>static</div>`)
     })
 
+    // testing $slot detection: bracket access, using $slot alone, passing as arguments...
+    it('should work for alternative $slot usage', () => {
+      const vm = new Vue({
+        template: `<foo>{{ $slot['foo'] }}<div slot="foo">{{ $slot }}</div><div>{{ pick($slot) }}</div></foo>`,
+        methods: { pick: s => s.foo },
+        components: { foo: { template: `<div><slot foo="default"/><slot name="foo"/></div>` }}
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>{}</div>`)
+    })
+
+    // should not consider detection if $slot is inside longer valid identifier
     it('should not break when template expression uses $slots', () => {
       const vm = new Vue({
-        template: ``
-      })
+        data: { some$slot: 123 },
+        template: `<foo>{{ some$slot }}<div slot="foo">{{ $slots }}</div></foo>`,
+        components: {
+          foo: {
+            render(h) {
+              // should be compiled as normal slots
+              expect(this.$slots.default).toBeTruthy()
+              expect(this.$slots.foo).toBeTruthy()
+              return h('div', [this.$slots.default, this.$slots.foo])
+            }
+          }
+        }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`123<div>{}</div>`)
     })
   })
 })

From b32c4b693535c35ae10742eb3351cbc123b15941 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 12:32:06 -0500
Subject: [PATCH 701/911] fix: ensure proxied normal slot uses correct key

---
 src/core/vdom/helpers/normalize-scoped-slots.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 15aa7b134ee..aa38a2995f0 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -19,7 +19,7 @@ export function normalizeScopedSlots (
   }
   // expose normal slots on scopedSlots
   for (const key in normalSlots) {
-    res[key] = () => normalSlots[key]
+    res[key] = proxyNormalSlot(normalSlots, key)
   }
   res._normalized = true
   return res
@@ -31,3 +31,7 @@ function normalizeScopedSlot(fn: Function) {
     return Array.isArray(res) ? res : res ? [res] : res
   }
 }
+
+function proxyNormalSlot(slots, key) {
+  return () => slots[key]
+}

From 90fe7490911c5f7f3adc1607f1a55fae5070bcd7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 12:44:31 -0500
Subject: [PATCH 702/911] build: trigger regression tests from 2.6 feature
 branch

---
 .circleci/config.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index ab8973c4acf..9075ab237c9 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -93,6 +93,7 @@ workflows:
           filters:
             branches:
               only:
+                - "2.6"
                 - regression-test
           requires:
             - test-cover

From 3504d7f6d6c8f5bf156fa9242bf54f502c077520 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 14:21:31 -0500
Subject: [PATCH 703/911] refactor: better solution for async edge case.

Revert event delegation related changes.
---
 src/core/config.js                          |  10 --
 src/platforms/web/runtime/modules/events.js | 139 ++++----------------
 test/e2e/specs/async-edge-cases.html        |   5 -
 types/test/vue-test.ts                      |   1 -
 types/vue.d.ts                              |   1 -
 5 files changed, 25 insertions(+), 131 deletions(-)

diff --git a/src/core/config.js b/src/core/config.js
index 0d8c1adb188..cae9d3dd395 100644
--- a/src/core/config.js
+++ b/src/core/config.js
@@ -19,7 +19,6 @@ export type Config = {
   warnHandler: ?(msg: string, vm: Component, trace: string) => void;
   ignoredElements: Array<string | RegExp>;
   keyCodes: { [key: string]: number | Array<number> };
-  useEventDelegation: boolean;
 
   // platform
   isReservedTag: (x?: string) => boolean;
@@ -84,15 +83,6 @@ export default ({
   // $flow-disable-line
   keyCodes: Object.create(null),
 
-  /**
-   * Use event delegation - this works around a few async edge cases caused by
-   * microtask / DOM event racing conditions, and should in theory save some
-   * memory.
-   *
-   * Off by default for backwards compatibility.
-   */
-  useEventDelegation: false,
-
   /**
    * Check if a tag is reserved so that it cannot be registered as a
    * component. This is platform-dependent and may be overwritten.
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index cb5097f995f..f1f9b82bd6b 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -1,9 +1,8 @@
 /* @flow */
 
-import config from 'core/config'
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
-import { isIE, isPhantomJS, supportsPassive } from 'core/util/index'
+import { isIE, isChrome, supportsPassive } from 'core/util/index'
 import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
 
 // normalize v-model event tokens that can only be determined at runtime.
@@ -39,114 +38,34 @@ function createOnceHandler (event, handler, capture) {
   }
 }
 
-const delegateRE = /^(?:click|dblclick|submit|(?:key|mouse|touch|pointer).*)$/
-const eventCounts = {}
-const attachedGlobalHandlers = {}
-
-type TargetRef = { el: Element | Document }
-
 function add (
   name: string,
   handler: Function,
   capture: boolean,
   passive: boolean
 ) {
-  if (
-    !capture &&
-    !passive &&
-    config.useEventDelegation &&
-    delegateRE.test(name)
-  ) {
-    const count = eventCounts[name]
-    let store = target.__events
-    if (!count) {
-      attachGlobalHandler(name)
-    }
-    if (!store) {
-      store = target.__events = {}
-    }
-    if (!store[name]) {
-      eventCounts[name]++
-    }
-    store[name] = handler
-  } else {
-    target.addEventListener(
-      name,
-      handler,
-      supportsPassive
-        ? { capture, passive }
-        : capture
-    )
-  }
-}
-
-function attachGlobalHandler(name: string) {
-  const handler = (attachedGlobalHandlers[name] = (e: any) => {
-    const isClick = e.type === 'click' || e.type === 'dblclick'
-    if (isClick && e.button !== 0) {
-      e.stopPropagation()
-      return false
-    }
-    const targetRef: TargetRef = { el: document }
-    dispatchEvent(e, name, isClick, targetRef)
-  })
-  document.addEventListener(name, handler)
-  eventCounts[name] = 0
-}
-
-function stopPropagation() {
-  this.cancelBubble = true
-  if (!this.immediatePropagationStopped) {
-    this.stopImmediatePropagation()
-  }
-}
-
-function dispatchEvent(
-  e: Event,
-  name: string,
-  isClick: boolean,
-  targetRef: TargetRef
-) {
-  let el: any = e.target
-  let userEvent
-  if (isPhantomJS) {
-    // in PhantomJS it throws if we try to re-define currentTarget,
-    // so instead we create a wrapped event to the user
-    userEvent = Object.create((e: any))
-    userEvent.stopPropagation = stopPropagation.bind((e: any))
-    userEvent.preventDefault = e.preventDefault.bind(e)
-  } else {
-    userEvent = e
-  }
-  Object.defineProperty(userEvent, 'currentTarget', ({
-    configurable: true,
-    get() {
-      return targetRef.el
-    }
-  }: any))
-  while (el != null) {
-    // Don't process clicks on disabled elements
-    if (isClick && el.disabled) {
-      break
-    }
-    const store = el.__events
-    if (store) {
-      const handler = store[name]
-      if (handler) {
-        targetRef.el = el
-        handler(userEvent)
-        if (e.cancelBubble) {
-          break
-        }
+  if (isChrome) {
+    // async edge case #6566: inner click event triggers patch, event handler
+    // attached to outer element during patch, and triggered again. This only
+    // happens in Chrome as it fires microtask ticks between event propagation.
+    // the solution is simple: we save the timestamp when a handler is attached,
+    // and the handler would only fire if the event passed to it was fired
+    // AFTER it was attached.
+    const now = performance.now()
+    const original = handler
+    handler = original._wrapper = function (e) {
+      if (e.timeStamp > now) {
+        return original.apply(this, arguments)
       }
     }
-    el = el.parentNode
   }
-}
-
-function removeGlobalHandler(name: string) {
-  document.removeEventListener(name, attachedGlobalHandlers[name])
-  attachedGlobalHandlers[name] = null
+  target.addEventListener(
+    name,
+    handler,
+    supportsPassive
+      ? { capture, passive }
+      : capture
+  )
 }
 
 function remove (
@@ -155,19 +74,11 @@ function remove (
   capture: boolean,
   _target?: HTMLElement
 ) {
-  const el: any = _target || target
-  if (!capture && config.useEventDelegation && delegateRE.test(name)) {
-    el.__events[name] = null
-    if (--eventCounts[name] === 0) {
-      removeGlobalHandler(name)
-    }
-  } else {
-    el.removeEventListener(
-      name,
-      handler._withTask || handler,
-      capture
-    )
-  }
+  (_target || target).removeEventListener(
+    name,
+    handler._wrapper || handler,
+    capture
+  )
 }
 
 function updateDOMListeners (oldVnode: VNodeWithData, vnode: VNodeWithData) {
diff --git a/test/e2e/specs/async-edge-cases.html b/test/e2e/specs/async-edge-cases.html
index e933b9ddaf4..7bca8f8cb9c 100644
--- a/test/e2e/specs/async-edge-cases.html
+++ b/test/e2e/specs/async-edge-cases.html
@@ -6,11 +6,6 @@
     <script src="../../../dist/vue.min.js"></script>
   </head>
   <body>
-    <script>
-      // this is necessary to make these cases pass
-      Vue.config.useEventDelegation = true
-    </script>
-
     <!-- #4510 click and change event on checkbox -->
     <div id="case-1">
       <div @click="num++">
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 1116d530e81..40ded2d29ce 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -75,7 +75,6 @@ class Test extends Vue {
     config.keyCodes = { esc: 27 };
     config.ignoredElements = ['foo', /^ion-/];
     config.async = false
-    config.useEventDelegation = true
   }
 
   static testMethods() {
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 327785436d2..2098a694dec 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -74,7 +74,6 @@ export interface VueConfiguration {
   warnHandler(msg: string, vm: Vue, trace: string): void;
   ignoredElements: (string | RegExp)[];
   keyCodes: { [key: string]: number | number[] };
-  useEventDelegation: boolean;
   async: boolean;
 }
 

From 3a1a9359607ed6ddc32627f5c33548d671fb21bd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 14:25:09 -0500
Subject: [PATCH 704/911] refactor: do not override scoped slots when exposing
 normal slots

---
 src/core/vdom/helpers/normalize-scoped-slots.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index aa38a2995f0..e1772e5608d 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -19,7 +19,9 @@ export function normalizeScopedSlots (
   }
   // expose normal slots on scopedSlots
   for (const key in normalSlots) {
-    res[key] = proxyNormalSlot(normalSlots, key)
+    if (!(key in res)) {
+      res[key] = proxyNormalSlot(normalSlots, key)
+    }
   }
   res._normalized = true
   return res

From ce7ca7bde9bc2296a263e59d5bb8b633405b87cb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 15:08:38 -0500
Subject: [PATCH 705/911] refactor: should also fire handler if timestamp was
 same

---
 src/platforms/web/runtime/modules/events.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index f1f9b82bd6b..77a744f1bf1 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -54,7 +54,7 @@ function add (
     const now = performance.now()
     const original = handler
     handler = original._wrapper = function (e) {
-      if (e.timeStamp > now) {
+      if (e.timeStamp >= now) {
         return original.apply(this, arguments)
       }
     }

From c50bbde41c4a1868a8a0b33df3238346840bd37c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 16:03:03 -0500
Subject: [PATCH 706/911] feat: add Vue.observable() for explicitly creating
 observable objects

---
 src/core/global-api/index.js                  |  7 +++++
 .../features/global-api/observable.spec.js    | 30 +++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 test/unit/features/global-api/observable.spec.js

diff --git a/src/core/global-api/index.js b/src/core/global-api/index.js
index 03ffa0fbf31..2bca92bbf70 100644
--- a/src/core/global-api/index.js
+++ b/src/core/global-api/index.js
@@ -8,6 +8,7 @@ import { initAssetRegisters } from './assets'
 import { set, del } from '../observer/index'
 import { ASSET_TYPES } from 'shared/constants'
 import builtInComponents from '../components/index'
+import { observe } from 'core/observer/index'
 
 import {
   warn,
@@ -44,6 +45,12 @@ export function initGlobalAPI (Vue: GlobalAPI) {
   Vue.delete = del
   Vue.nextTick = nextTick
 
+  // 2.6 explicit observable API
+  Vue.observable = (obj: any): any => {
+    observe(obj)
+    return obj
+  }
+
   Vue.options = Object.create(null)
   ASSET_TYPES.forEach(type => {
     Vue.options[type + 's'] = Object.create(null)
diff --git a/test/unit/features/global-api/observable.spec.js b/test/unit/features/global-api/observable.spec.js
new file mode 100644
index 00000000000..ecf2897d0a7
--- /dev/null
+++ b/test/unit/features/global-api/observable.spec.js
@@ -0,0 +1,30 @@
+import Vue from 'vue'
+
+describe('Global API: observable', () => {
+  it('should work', done => {
+    const state = Vue.observable({
+      count: 0
+    })
+
+    const app = new Vue({
+      render(h) {
+        return h('div', [
+          h('span', state.count),
+          h('button', {
+            on: {
+              click: () => {
+                state.count++
+              }
+            }
+          }, '+')
+        ])
+      }
+    }).$mount()
+
+    expect(app.$el.querySelector('span').textContent).toBe('0')
+    app.$el.querySelector('button').click()
+    waitForUpdate(() => {
+      expect(app.$el.querySelector('span').textContent).toBe('1')
+    }).then(done)
+  })
+})

From 537161779ea329c1d0a993997555f1c692b8cac1 Mon Sep 17 00:00:00 2001
From: hikerpig <102706325@163.com>
Date: Fri, 11 Jan 2019 05:10:54 +0800
Subject: [PATCH 707/911] fix(core): fix merged twice bug when passing extended
 constructor to mixins (#9199)

fix #9198
---
 src/core/util/options.js                  |  4 ++--
 test/unit/features/options/mixins.spec.js | 28 +++++++++++++++++++++++
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 40c8c34cd97..b56e55039a4 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -382,13 +382,13 @@ export function mergeOptions (
   }
 
   if (typeof child === 'function') {
-    child = child.options
+    child = child.extendOptions
   }
 
   normalizeProps(child, vm)
   normalizeInject(child, vm)
   normalizeDirectives(child)
-  
+
   // Apply extends and mixins on the child options,
   // but only if it is a raw options object that isn't
   // the result of another mergeOptions call.
diff --git a/test/unit/features/options/mixins.spec.js b/test/unit/features/options/mixins.spec.js
index 8385edfe03c..65c4e6055ff 100644
--- a/test/unit/features/options/mixins.spec.js
+++ b/test/unit/features/options/mixins.spec.js
@@ -109,4 +109,32 @@ describe('Options mixins', () => {
     expect(vm.b).toBeDefined()
     expect(vm.$options.directives.c).toBeDefined()
   })
+
+  it('should not mix global mixined lifecycle hook twice', () => {
+    const spy = jasmine.createSpy('global mixed in lifecycle hook')
+    Vue.mixin({
+      created() {
+        spy()
+      }
+    })
+
+    const mixin1 = Vue.extend({
+      methods: {
+        a() {}
+      }
+    })
+
+    const mixin2 = Vue.extend({
+      mixins: [mixin1],
+    })
+
+    const Child = Vue.extend({
+      mixins: [mixin2],
+    })
+
+    const vm = new Child()
+
+    expect(typeof vm.$options.methods.a).toBe('function')
+    expect(spy.calls.count()).toBe(1)
+  })
 })

From a4ed58c076649a4536b40a9c98c974c77602c76b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 17:58:06 -0500
Subject: [PATCH 708/911] feat(compiler): expose generateCodeFrame method

---
 packages/vue-template-compiler/README.md | 12 ++++++++++++
 src/platforms/web/entry-compiler.js      |  1 +
 src/platforms/weex/entry-compiler.js     |  1 +
 3 files changed, 14 insertions(+)

diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index 922622e5d4e..afdb482e0eb 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -33,6 +33,12 @@ Note the returned function code uses `with` and thus cannot be used in strict mo
 
 #### Options
 
+- `outputSourceRange` *new in 2.6*
+  - Type: `boolean`
+  - Default: `false`
+
+  Set this to true will cause the `errors` returned in the compiled result become objects in the form of `{ msg, start, end }`. The `start` and `end` properties are numbers that mark the code range of the error source in the template. This can be passed on to the `compiler.generateCodeFrame` API to generate code frame for the error.
+
 - `whitespace`
   - Type: `string`
   - Valid values: `'preserve' | 'condense'`
@@ -140,6 +146,12 @@ Same as `compiler.compileToFunction` but generates SSR-specific render function
 
 Parse a SFC (single-file component, or `*.vue` file) into a descriptor (refer to the `SFCDescriptor` type in [flow declarations](https://github.com/vuejs/vue/blob/dev/flow/compiler.js)). This is used in SFC build tools like `vue-loader` and `vueify`.
 
+---
+
+### compiler.generateCodeFrame(template, start, end)
+
+Generate a code frame that highlights the part in `template` defined by `start` and `end`. Useful for error reporting in higher-level tooling.
+
 #### Options
 
 #### `pad`
diff --git a/src/platforms/web/entry-compiler.js b/src/platforms/web/entry-compiler.js
index ee63476e1eb..15a4f685999 100644
--- a/src/platforms/web/entry-compiler.js
+++ b/src/platforms/web/entry-compiler.js
@@ -3,3 +3,4 @@
 export { parseComponent } from 'sfc/parser'
 export { compile, compileToFunctions } from './compiler/index'
 export { ssrCompile, ssrCompileToFunctions } from './server/compiler'
+export { generateCodeFrame } from 'compiler/codeframe'
diff --git a/src/platforms/weex/entry-compiler.js b/src/platforms/weex/entry-compiler.js
index 18d79ab742f..b8f3f8ffcfb 100644
--- a/src/platforms/weex/entry-compiler.js
+++ b/src/platforms/weex/entry-compiler.js
@@ -1 +1,2 @@
 export { compile } from 'weex/compiler/index'
+export { generateCodeFrame } from 'compiler/codeframe'

From 142cf6c4893c36a20e9e4102f588103c70023b46 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 18:19:23 -0500
Subject: [PATCH 709/911] types: update typing for vue-template-compiler

---
 .../vue-template-compiler/types/index.d.ts    | 37 ++++++++++++++++---
 packages/vue-template-compiler/types/test.ts  | 25 +++++++++++++
 2 files changed, 57 insertions(+), 5 deletions(-)

diff --git a/packages/vue-template-compiler/types/index.d.ts b/packages/vue-template-compiler/types/index.d.ts
index 936b1c91c84..09c3e527d78 100644
--- a/packages/vue-template-compiler/types/index.d.ts
+++ b/packages/vue-template-compiler/types/index.d.ts
@@ -8,14 +8,25 @@ interface CompilerOptions {
   directives?: Record<string, DirectiveFunction>;
   preserveWhitespace?: boolean;
   whitespace?: 'preserve' | 'condense';
+  outputSourceRange?: any
 }
 
-interface CompiledResult {
+interface CompilerOptionsWithSourceRange extends CompilerOptions {
+  outputSourceRange: true
+}
+
+interface ErrorWithRange {
+  msg: string;
+  start: number;
+  end: number;
+}
+
+interface CompiledResult<ErrorType> {
   ast: ASTElement | undefined;
   render: string;
   staticRenderFns: string[];
-  errors: string[];
-  tips: string[];
+  errors: ErrorType[];
+  tips: ErrorType[];
 }
 
 interface CompiledResultFunctions {
@@ -202,17 +213,27 @@ export interface SFCDescriptor {
 /*
  * Exposed functions
  */
+export function compile(
+  template: string,
+  options: CompilerOptionsWithSourceRange
+): CompiledResult<ErrorWithRange>
+
 export function compile(
   template: string,
   options?: CompilerOptions
-): CompiledResult;
+): CompiledResult<string>;
 
 export function compileToFunctions(template: string): CompiledResultFunctions;
 
+export function ssrCompile(
+  template: string,
+  options: CompilerOptionsWithSourceRange
+): CompiledResult<ErrorWithRange>;
+
 export function ssrCompile(
   template: string,
   options?: CompilerOptions
-): CompiledResult;
+): CompiledResult<string>;
 
 export function ssrCompileToFunctions(template: string): CompiledResultFunctions;
 
@@ -220,3 +241,9 @@ export function parseComponent(
   file: string,
   options?: SFCParserOptions
 ): SFCDescriptor;
+
+export function generateCodeFrame(
+  template: string,
+  start: number,
+  end: number
+): string;
diff --git a/packages/vue-template-compiler/types/test.ts b/packages/vue-template-compiler/types/test.ts
index cf2c1be6b9b..fbc6dd3d25c 100644
--- a/packages/vue-template-compiler/types/test.ts
+++ b/packages/vue-template-compiler/types/test.ts
@@ -9,6 +9,7 @@ import {
 
 // check compile options
 const compiled = compile("<div>hi</div>", {
+  outputSourceRange: true,
   preserveWhitespace: false,
   whitespace: 'condense',
   modules: [
@@ -35,6 +36,30 @@ const compiled = compile("<div>hi</div>", {
 new Function(compiled.render);
 compiled.staticRenderFns.map(fn => new Function(fn));
 
+// with outputSourceRange: true
+// errors should be objects with range
+compiled.errors.forEach(e => {
+  console.log(e.msg)
+})
+
+// without option or without outputSourceRange: true, should be strings
+const { errors } = compile(`foo`)
+errors.forEach(e => {
+  console.log(e.length)
+})
+
+const { errors: errors2 } = compile(`foo`, {})
+errors2.forEach(e => {
+  console.log(e.length)
+})
+
+const { errors: errors3 } = compile(`foo`, {
+  outputSourceRange: false
+})
+errors3.forEach(e => {
+  console.log(e.length)
+})
+
 const compiledFns = compileToFunctions("<div>hi</div>");
 
 // can be passed to component render / staticRenderFns options

From fe2b27ffb98932ec8e822bd88b4de1666810521c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 10 Jan 2019 22:44:55 -0500
Subject: [PATCH 710/911] types: typing for Vue.observable

---
 flow/global-api.js           | 2 ++
 src/core/global-api/index.js | 2 +-
 types/test/vue-test.ts       | 3 +++
 types/vue.d.ts               | 2 ++
 4 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/flow/global-api.js b/flow/global-api.js
index eab244c22bb..0ce54fda3f4 100644
--- a/flow/global-api.js
+++ b/flow/global-api.js
@@ -16,6 +16,8 @@ declare interface GlobalAPI {
   component: (id: string, def?: Class<Component> | Object) => Class<Component>;
   filter: (id: string, def?: Function) => Function | void;
 
+  observable: <T>(value: T) => T;
+
   // allow dynamic method registration
   [key: string]: any
 };
diff --git a/src/core/global-api/index.js b/src/core/global-api/index.js
index 2bca92bbf70..b3387a891ff 100644
--- a/src/core/global-api/index.js
+++ b/src/core/global-api/index.js
@@ -46,7 +46,7 @@ export function initGlobalAPI (Vue: GlobalAPI) {
   Vue.nextTick = nextTick
 
   // 2.6 explicit observable API
-  Vue.observable = (obj: any): any => {
+  Vue.observable = <T>(obj: T): T => {
     observe(obj)
     return obj
   }
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 40ded2d29ce..57cafc478fa 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -200,3 +200,6 @@ declare function decorate<VC extends typeof Vue>(v: VC): VC;
 class Decorated extends Vue {
   a = 123;
 }
+
+const obj = Vue.observable({ a: 1 })
+obj.a++
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 2098a694dec..1b92e666c6a 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -119,6 +119,8 @@ export interface VueConstructor<V extends Vue = Vue> {
     staticRenderFns: (() => VNode)[];
   };
 
+  observable<T>(obj: T): T;
+
   config: VueConfiguration;
 }
 

From 7d9cfebe39ffd531e0948668e688474b276cdec1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 11:07:40 -0500
Subject: [PATCH 711/911] fix(ssr): properly handle invalid and numeric style
 properties

Ignores values that are not string or numbers, and append px as default
unit to appropriate properties.

There will still be certain cases where the user simply provides an
invalid string value to a property which will be too costly to detect
(it's possible by using the `cssstyle` package, but very heavy). But
in such cases the user would already notice the style is not working
on the client, so it's not really worth it for the perf implications.

fix #9231
---
 src/platforms/web/server/modules/style.js | 25 +++++++++++--
 src/platforms/web/server/util.js          | 45 +++++++++++++++++++++++
 src/platforms/web/util/style.js           |  1 -
 test/ssr/ssr-string.spec.js               | 41 +++++++++++++++++++++
 4 files changed, 108 insertions(+), 4 deletions(-)

diff --git a/src/platforms/web/server/modules/style.js b/src/platforms/web/server/modules/style.js
index fc043ef3409..9153b07770d 100644
--- a/src/platforms/web/server/modules/style.js
+++ b/src/platforms/web/server/modules/style.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-import { escape } from '../util'
+import { escape, noUnitNumericStyleProps } from '../util'
 import { hyphenate } from 'shared/util'
 import { getStyle } from 'web/util/style'
 
@@ -11,15 +11,34 @@ export function genStyle (style: Object): string {
     const hyphenatedKey = hyphenate(key)
     if (Array.isArray(value)) {
       for (let i = 0, len = value.length; i < len; i++) {
-        styleText += `${hyphenatedKey}:${value[i]};`
+        styleText += normalizeValue(hyphenatedKey, value[i])
       }
     } else {
-      styleText += `${hyphenatedKey}:${value};`
+      styleText += normalizeValue(hyphenatedKey, value)
     }
   }
   return styleText
 }
 
+function normalizeValue(key: string, value: any): string {
+  if (typeof value === 'string') {
+    return `${key}:${value};`
+  } else if (typeof value === 'number') {
+    // Handle numeric values.
+    // Turns out all evergreen browsers plus IE11 already support setting plain
+    // numbers on the style object and will automatically convert it to px if
+    // applicable, so we should support that on the server too.
+    if (noUnitNumericStyleProps[key]) {
+      return `${key}:${value};`
+    } else {
+      return `${key}:${value}px;`
+    }
+  } else {
+    // invalid values
+    return ``
+  }
+}
+
 export default function renderStyle (vnode: VNodeWithData): ?string {
   const styleText = genStyle(getStyle(vnode, false))
   if (styleText !== '') {
diff --git a/src/platforms/web/server/util.js b/src/platforms/web/server/util.js
index 1481da5bc4d..1981d00ae51 100644
--- a/src/platforms/web/server/util.js
+++ b/src/platforms/web/server/util.js
@@ -54,3 +54,48 @@ export function escape (s: string) {
 function escapeChar (a) {
   return ESC[a] || a
 }
+
+export const noUnitNumericStyleProps = {
+  "animation-iteration-count": true,
+  "border-image-outset": true,
+  "border-image-slice": true,
+  "border-image-width": true,
+  "box-flex": true,
+  "box-flex-group": true,
+  "box-ordinal-group": true,
+  "column-count": true,
+  "columns": true,
+  "flex": true,
+  "flex-grow": true,
+  "flex-positive": true,
+  "flex-shrink": true,
+  "flex-negative": true,
+  "flex-order": true,
+  "grid-row": true,
+  "grid-row-end": true,
+  "grid-row-span": true,
+  "grid-row-start": true,
+  "grid-column": true,
+  "grid-column-end": true,
+  "grid-column-span": true,
+  "grid-column-start": true,
+  "font-weight": true,
+  "line-clamp": true,
+  "line-height": true,
+  "opacity": true,
+  "order": true,
+  "orphans": true,
+  "tab-size": true,
+  "widows": true,
+  "z-index": true,
+  "zoom": true,
+  // SVG
+  "fill-opacity": true,
+  "flood-opacity": true,
+  "stop-opacity": true,
+  "stroke-dasharray": true,
+  "stroke-dashoffset": true,
+  "stroke-miterlimit": true,
+  "stroke-opacity": true,
+  "stroke-width": true
+}
diff --git a/src/platforms/web/util/style.js b/src/platforms/web/util/style.js
index faa3db382e9..46e69e4e28f 100644
--- a/src/platforms/web/util/style.js
+++ b/src/platforms/web/util/style.js
@@ -69,4 +69,3 @@ export function getStyle (vnode: VNodeWithData, checkChild: boolean): Object {
   }
   return res
 }
-
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 112b50e1b18..35191dcdf5a 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1499,6 +1499,47 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('invalid style value', done => {
+    renderVmWithOptions({
+      template: '<div :style="style"><p :style="style2"/></div>',
+      data: {
+        // all invalid, should not even have "style" attribute
+        style: {
+          opacity: {},
+          color: null
+        },
+        // mix of valid and invalid
+        style2: {
+          opacity: 0,
+          color: null
+        }
+      }
+    }, result => {
+      expect(result).toContain(
+        '<div data-server-rendered="true"><p style="opacity:0;"></p></div>'
+      )
+      done()
+    })
+  })
+
+  it('numeric style value', done => {
+    renderVmWithOptions({
+      template: '<div :style="style"></div>',
+      data: {
+        style: {
+          opacity: 0, // opacity should display as-is
+          top: 0, // top and margin should be converted to '0px'
+          marginTop: 10
+        }
+      }
+    }, result => {
+      expect(result).toContain(
+        '<div data-server-rendered="true" style="opacity:0;top:0px;margin-top:10px;"></div>'
+      )
+      done()
+    })
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 17d8bcb60edc14b2c23f5e6cc92f030897092e21 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 14:54:10 -0500
Subject: [PATCH 712/911] fix(ssr): should not render invalid numeric style
 values

Reverts part of 7d9cfebe - browsers only auto append units to
numbers when in quirksmode, so in standard mode, numbers set to
style properties that require units are invalid and should not
be rendered.
---
 src/platforms/web/server/modules/style.js | 15 ++++-----------
 test/ssr/ssr-string.spec.js               |  8 ++++----
 2 files changed, 8 insertions(+), 15 deletions(-)

diff --git a/src/platforms/web/server/modules/style.js b/src/platforms/web/server/modules/style.js
index 9153b07770d..4d32562823a 100644
--- a/src/platforms/web/server/modules/style.js
+++ b/src/platforms/web/server/modules/style.js
@@ -21,18 +21,11 @@ export function genStyle (style: Object): string {
 }
 
 function normalizeValue(key: string, value: any): string {
-  if (typeof value === 'string') {
+  if (
+    typeof value === 'string' ||
+    (typeof value === 'number' && noUnitNumericStyleProps[key])
+  ) {
     return `${key}:${value};`
-  } else if (typeof value === 'number') {
-    // Handle numeric values.
-    // Turns out all evergreen browsers plus IE11 already support setting plain
-    // numbers on the style object and will automatically convert it to px if
-    // applicable, so we should support that on the server too.
-    if (noUnitNumericStyleProps[key]) {
-      return `${key}:${value};`
-    } else {
-      return `${key}:${value}px;`
-    }
   } else {
     // invalid values
     return ``
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 35191dcdf5a..75bcc8cb1f1 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1528,14 +1528,14 @@ describe('SSR: renderToString', () => {
       template: '<div :style="style"></div>',
       data: {
         style: {
-          opacity: 0, // opacity should display as-is
-          top: 0, // top and margin should be converted to '0px'
-          marginTop: 10
+          opacity: 0, // valid, opacity is unit-less
+          top: 0, // invalid, top requires unit
+          marginTop: '10px' // valid
         }
       }
     }, result => {
       expect(result).toContain(
-        '<div data-server-rendered="true" style="opacity:0;top:0px;margin-top:10px;"></div>'
+        '<div data-server-rendered="true" style="opacity:0;margin-top:10px;"></div>'
       )
       done()
     })

From d21e93139697be2c0a6fdc4ee74d30d2834a729f Mon Sep 17 00:00:00 2001
From: Adrien Baron <adrien@abaron.net>
Date: Fri, 11 Jan 2019 21:46:25 +0100
Subject: [PATCH 713/911] fix(async component): memory leak after synchronous
 async loading (#9275)

fix #9229
---
 .../vdom/helpers/resolve-async-component.js   |  2 ++
 .../modules/vdom/create-component.spec.js     | 26 +++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 44ca238854f..4dbefd91fbc 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -78,6 +78,8 @@ export function resolveAsyncComponent (
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
         forceRender(true)
+      } else {
+        contexts.length = 0
       }
     })
 
diff --git a/test/unit/modules/vdom/create-component.spec.js b/test/unit/modules/vdom/create-component.spec.js
index e69fca0eff3..c5a1f717c95 100644
--- a/test/unit/modules/vdom/create-component.spec.js
+++ b/test/unit/modules/vdom/create-component.spec.js
@@ -76,6 +76,32 @@ describe('create-component', () => {
     go()
   })
 
+  it('create a component when resolved with synchronous async loading', done => {
+    const data = {
+      props: {},
+      staticAttrs: { class: 'bar' }
+    }
+    spyOn(vm, '$forceUpdate')
+    function async (resolve, reject) {
+      resolve({
+        name: 'child',
+        props: ['msg']
+      })
+    }
+    const vnode = createComponent(async, data, vm, vm)
+    expect(vnode.asyncFactory).toBe(async)
+    expect(vnode.asyncFactory.contexts.length).toEqual(0)
+    expect(vnode.tag).toMatch(/vue-component-[0-9]+-child/)
+    expect(vnode.data.staticAttrs).toEqual({ class: 'bar' })
+    expect(vnode.children).toBeUndefined()
+    expect(vnode.text).toBeUndefined()
+    expect(vnode.elm).toBeUndefined()
+    expect(vnode.ns).toBeUndefined()
+    expect(vnode.context).toEqual(vm)
+    expect(vm.$forceUpdate).not.toHaveBeenCalled()
+    done()
+  })
+
   it('not create a component when rejected with async loading', done => {
     let vnode = null
     const data = {

From 743edacdb6fa0bb711e860b68373274f50c8baa5 Mon Sep 17 00:00:00 2001
From: hikerpig <102706325@163.com>
Date: Fri, 11 Jan 2019 05:10:54 +0800
Subject: [PATCH 714/911] fix(core): fix merged twice bug when passing extended
 constructor to mixins (#9199)

fix #9198
---
 src/core/util/options.js                  |  4 ++--
 test/unit/features/options/mixins.spec.js | 28 +++++++++++++++++++++++
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index fc7826dc01d..333d08ab755 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -376,13 +376,13 @@ export function mergeOptions (
   }
 
   if (typeof child === 'function') {
-    child = child.options
+    child = child.extendOptions
   }
 
   normalizeProps(child, vm)
   normalizeInject(child, vm)
   normalizeDirectives(child)
-  
+
   // Apply extends and mixins on the child options,
   // but only if it is a raw options object that isn't
   // the result of another mergeOptions call.
diff --git a/test/unit/features/options/mixins.spec.js b/test/unit/features/options/mixins.spec.js
index 8385edfe03c..65c4e6055ff 100644
--- a/test/unit/features/options/mixins.spec.js
+++ b/test/unit/features/options/mixins.spec.js
@@ -109,4 +109,32 @@ describe('Options mixins', () => {
     expect(vm.b).toBeDefined()
     expect(vm.$options.directives.c).toBeDefined()
   })
+
+  it('should not mix global mixined lifecycle hook twice', () => {
+    const spy = jasmine.createSpy('global mixed in lifecycle hook')
+    Vue.mixin({
+      created() {
+        spy()
+      }
+    })
+
+    const mixin1 = Vue.extend({
+      methods: {
+        a() {}
+      }
+    })
+
+    const mixin2 = Vue.extend({
+      mixins: [mixin1],
+    })
+
+    const Child = Vue.extend({
+      mixins: [mixin2],
+    })
+
+    const vm = new Child()
+
+    expect(typeof vm.$options.methods.a).toBe('function')
+    expect(spy.calls.count()).toBe(1)
+  })
 })

From edf7df0c837557dd3ea8d7b42ad8d4b21858ade0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 17:51:45 -0500
Subject: [PATCH 715/911] fix(core): dedupe lifecycle hooks during options
 merge

The fix landed in #9199 causes further extended constructors used as
mixins to drop options from its inheritance chain, so a different fix
is needed.
---
 src/core/instance/init.js                   | 22 +-----------
 src/core/util/options.js                    | 17 +++++++--
 test/unit/features/global-api/mixin.spec.js | 27 +++++++++++++++
 test/unit/features/options/mixins.spec.js   | 38 ++++++++++++---------
 4 files changed, 64 insertions(+), 40 deletions(-)

diff --git a/src/core/instance/init.js b/src/core/instance/init.js
index 9b2ec80c44d..7c5ab2da963 100644
--- a/src/core/instance/init.js
+++ b/src/core/instance/init.js
@@ -117,32 +117,12 @@ export function resolveConstructorOptions (Ctor: Class<Component>) {
 function resolveModifiedOptions (Ctor: Class<Component>): ?Object {
   let modified
   const latest = Ctor.options
-  const extended = Ctor.extendOptions
   const sealed = Ctor.sealedOptions
   for (const key in latest) {
     if (latest[key] !== sealed[key]) {
       if (!modified) modified = {}
-      modified[key] = dedupe(latest[key], extended[key], sealed[key])
+      modified[key] = latest[key]
     }
   }
   return modified
 }
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    const res = []
-    sealed = Array.isArray(sealed) ? sealed : [sealed]
-    extended = Array.isArray(extended) ? extended : [extended]
-    for (let i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i])
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
diff --git a/src/core/util/options.js b/src/core/util/options.js
index b56e55039a4..20aba22709b 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -147,13 +147,26 @@ function mergeHook (
   parentVal: ?Array<Function>,
   childVal: ?Function | ?Array<Function>
 ): ?Array<Function> {
-  return childVal
+  const res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
     : parentVal
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  const res = []
+  for (let i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i])
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(hook => {
@@ -382,7 +395,7 @@ export function mergeOptions (
   }
 
   if (typeof child === 'function') {
-    child = child.extendOptions
+    child = child.options
   }
 
   normalizeProps(child, vm)
diff --git a/test/unit/features/global-api/mixin.spec.js b/test/unit/features/global-api/mixin.spec.js
index 0b83773a5d4..14b65918c50 100644
--- a/test/unit/features/global-api/mixin.spec.js
+++ b/test/unit/features/global-api/mixin.spec.js
@@ -167,4 +167,31 @@ describe('Global API: mixin', () => {
   it('chain call', () => {
     expect(Vue.mixin({})).toBe(Vue)
   })
+
+  // #9198
+  it('should not mix global mixin lifecycle hook twice', () => {
+    const spy = jasmine.createSpy('global mixed in lifecycle hook')
+    Vue.mixin({
+      created: spy
+    })
+
+    const mixin1 = Vue.extend({
+      methods: {
+        a() {}
+      }
+    })
+
+    const mixin2 = Vue.extend({
+      mixins: [mixin1]
+    })
+
+    const Child = Vue.extend({
+      mixins: [mixin2],
+    })
+
+    const vm = new Child()
+
+    expect(typeof vm.$options.methods.a).toBe('function')
+    expect(spy.calls.count()).toBe(1)
+  })
 })
diff --git a/test/unit/features/options/mixins.spec.js b/test/unit/features/options/mixins.spec.js
index 65c4e6055ff..373f8867091 100644
--- a/test/unit/features/options/mixins.spec.js
+++ b/test/unit/features/options/mixins.spec.js
@@ -110,31 +110,35 @@ describe('Options mixins', () => {
     expect(vm.$options.directives.c).toBeDefined()
   })
 
-  it('should not mix global mixined lifecycle hook twice', () => {
-    const spy = jasmine.createSpy('global mixed in lifecycle hook')
-    Vue.mixin({
-      created() {
-        spy()
-      }
-    })
+  it('should accept further extended constructors as mixins', () => {
+    const spy1 = jasmine.createSpy('mixinA')
+    const spy2 = jasmine.createSpy('mixinB')
 
-    const mixin1 = Vue.extend({
+    const mixinA = Vue.extend({
+      created: spy1,
+      directives: {
+        c: {}
+      },
       methods: {
-        a() {}
+        a: function () {}
       }
     })
 
-    const mixin2 = Vue.extend({
-      mixins: [mixin1],
+    const mixinB = mixinA.extend({
+      created: spy2
     })
 
-    const Child = Vue.extend({
-      mixins: [mixin2],
+    const vm = new Vue({
+      mixins: [mixinB],
+      methods: {
+        b: function () {}
+      }
     })
 
-    const vm = new Child()
-
-    expect(typeof vm.$options.methods.a).toBe('function')
-    expect(spy.calls.count()).toBe(1)
+    expect(spy1).toHaveBeenCalledTimes(1)
+    expect(spy2).toHaveBeenCalledTimes(1)
+    expect(vm.a).toBeDefined()
+    expect(vm.b).toBeDefined()
+    expect(vm.$options.directives.c).toBeDefined()
   })
 })

From 0d2e9c46f16e9ec5bd0f3eebd2aa31c7f7493856 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 17:51:45 -0500
Subject: [PATCH 716/911] fix(core): dedupe lifecycle hooks during options
 merge

The fix landed in #9199 causes further extended constructors used as
mixins to drop options from its inheritance chain, so a different fix
is needed.
---
 src/core/instance/init.js                   | 22 +-----------
 src/core/util/options.js                    | 17 +++++++--
 test/unit/features/global-api/mixin.spec.js | 27 +++++++++++++++
 test/unit/features/options/mixins.spec.js   | 38 ++++++++++++---------
 4 files changed, 64 insertions(+), 40 deletions(-)

diff --git a/src/core/instance/init.js b/src/core/instance/init.js
index 9b2ec80c44d..7c5ab2da963 100644
--- a/src/core/instance/init.js
+++ b/src/core/instance/init.js
@@ -117,32 +117,12 @@ export function resolveConstructorOptions (Ctor: Class<Component>) {
 function resolveModifiedOptions (Ctor: Class<Component>): ?Object {
   let modified
   const latest = Ctor.options
-  const extended = Ctor.extendOptions
   const sealed = Ctor.sealedOptions
   for (const key in latest) {
     if (latest[key] !== sealed[key]) {
       if (!modified) modified = {}
-      modified[key] = dedupe(latest[key], extended[key], sealed[key])
+      modified[key] = latest[key]
     }
   }
   return modified
 }
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    const res = []
-    sealed = Array.isArray(sealed) ? sealed : [sealed]
-    extended = Array.isArray(extended) ? extended : [extended]
-    for (let i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i])
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
diff --git a/src/core/util/options.js b/src/core/util/options.js
index 333d08ab755..fe9b6f30298 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -140,13 +140,26 @@ function mergeHook (
   parentVal: ?Array<Function>,
   childVal: ?Function | ?Array<Function>
 ): ?Array<Function> {
-  return childVal
+  const res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
     : parentVal
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  const res = []
+  for (let i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i])
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(hook => {
@@ -376,7 +389,7 @@ export function mergeOptions (
   }
 
   if (typeof child === 'function') {
-    child = child.extendOptions
+    child = child.options
   }
 
   normalizeProps(child, vm)
diff --git a/test/unit/features/global-api/mixin.spec.js b/test/unit/features/global-api/mixin.spec.js
index 0b83773a5d4..14b65918c50 100644
--- a/test/unit/features/global-api/mixin.spec.js
+++ b/test/unit/features/global-api/mixin.spec.js
@@ -167,4 +167,31 @@ describe('Global API: mixin', () => {
   it('chain call', () => {
     expect(Vue.mixin({})).toBe(Vue)
   })
+
+  // #9198
+  it('should not mix global mixin lifecycle hook twice', () => {
+    const spy = jasmine.createSpy('global mixed in lifecycle hook')
+    Vue.mixin({
+      created: spy
+    })
+
+    const mixin1 = Vue.extend({
+      methods: {
+        a() {}
+      }
+    })
+
+    const mixin2 = Vue.extend({
+      mixins: [mixin1]
+    })
+
+    const Child = Vue.extend({
+      mixins: [mixin2],
+    })
+
+    const vm = new Child()
+
+    expect(typeof vm.$options.methods.a).toBe('function')
+    expect(spy.calls.count()).toBe(1)
+  })
 })
diff --git a/test/unit/features/options/mixins.spec.js b/test/unit/features/options/mixins.spec.js
index 65c4e6055ff..373f8867091 100644
--- a/test/unit/features/options/mixins.spec.js
+++ b/test/unit/features/options/mixins.spec.js
@@ -110,31 +110,35 @@ describe('Options mixins', () => {
     expect(vm.$options.directives.c).toBeDefined()
   })
 
-  it('should not mix global mixined lifecycle hook twice', () => {
-    const spy = jasmine.createSpy('global mixed in lifecycle hook')
-    Vue.mixin({
-      created() {
-        spy()
-      }
-    })
+  it('should accept further extended constructors as mixins', () => {
+    const spy1 = jasmine.createSpy('mixinA')
+    const spy2 = jasmine.createSpy('mixinB')
 
-    const mixin1 = Vue.extend({
+    const mixinA = Vue.extend({
+      created: spy1,
+      directives: {
+        c: {}
+      },
       methods: {
-        a() {}
+        a: function () {}
       }
     })
 
-    const mixin2 = Vue.extend({
-      mixins: [mixin1],
+    const mixinB = mixinA.extend({
+      created: spy2
     })
 
-    const Child = Vue.extend({
-      mixins: [mixin2],
+    const vm = new Vue({
+      mixins: [mixinB],
+      methods: {
+        b: function () {}
+      }
     })
 
-    const vm = new Child()
-
-    expect(typeof vm.$options.methods.a).toBe('function')
-    expect(spy.calls.count()).toBe(1)
+    expect(spy1).toHaveBeenCalledTimes(1)
+    expect(spy2).toHaveBeenCalledTimes(1)
+    expect(vm.a).toBeDefined()
+    expect(vm.b).toBeDefined()
+    expect(vm.$options.directives.c).toBeDefined()
   })
 })

From 7ac8f63a051de2a4b19b73e4729f2c8662b2fb3e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 18:13:13 -0500
Subject: [PATCH 717/911] chore: remove residual files from dist

---
 dist/vue.common.dev.js          | 11049 ------------------------------
 dist/vue.common.prod.js         |     6 -
 dist/vue.esm.browser.js         | 10733 -----------------------------
 dist/vue.esm.browser.min.js     |     6 -
 dist/vue.runtime.common.dev.js  |  8084 ----------------------
 dist/vue.runtime.common.prod.js |     6 -
 6 files changed, 29884 deletions(-)
 delete mode 100644 dist/vue.common.dev.js
 delete mode 100644 dist/vue.common.prod.js
 delete mode 100644 dist/vue.esm.browser.js
 delete mode 100644 dist/vue.esm.browser.min.js
 delete mode 100644 dist/vue.runtime.common.dev.js
 delete mode 100644 dist/vue.runtime.common.prod.js

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
deleted file mode 100644
index bd155364060..00000000000
--- a/dist/vue.common.dev.js
+++ /dev/null
@@ -1,11049 +0,0 @@
-/*!
- * Vue.js v2.5.18-beta.0
- * (c) 2014-2018 Evan You
- * Released under the MIT License.
- */
-'use strict';
-
-/*  */
-
-var emptyObject = Object.freeze({});
-
-// These helpers produce better VM code in JS engines due to their
-// explicitness and function inlining.
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive.
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value, e.g., [object Object].
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert an input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if an attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array.
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether an object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it,
- * e.g., PhantomJS 1.x. Technically, we don't need this anymore
- * since native bind is now performant enough in most browsers.
- * But removing it would mean breaking code that was able to run in
- * PhantomJS 1.x, so this must be kept for backward compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/* eslint-disable no-unused-vars */
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
-
-/* eslint-enable no-unused-vars */
-
-/**
- * Return the same value.
- */
-var identity = function (_) { return _; };
-
-/**
- * Generate a string containing static keys from compiler modules.
- */
-function genStaticKeys (modules) {
-  return modules.reduce(function (keys, m) {
-    return keys.concat(m.staticKeys || [])
-  }, []).join(',')
-}
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (a instanceof Date && b instanceof Date) {
-        return a.getTime() === b.getTime()
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}
-
-/**
- * Return the first index at which a loosely equal value can be
- * found in the array (if value is a plain object, the array must
- * contain an object of the same shape), or -1 if it is not present.
- */
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: "development" !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: "development" !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Perform updates asynchronously. Intended to be used by Vue Test Utils
-   * This will significantly reduce performance if set to false.
-   */
-  async: true,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
-
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = /*@__PURE__*/(function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
-
-{
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
-
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
-/*  */
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  if (!config.async) {
-    // subs aren't sorted in scheduler if not running async
-    // we need to sort them now to make sure they fire in correct
-    // order
-    subs.sort(function (a, b) { return a.id - b.id; });
-  }
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (target) {
-  targetStack.push(target);
-  Dep.target = target;
-}
-
-function popTarget () {
-  targetStack.pop();
-  Dep.target = targetStack[targetStack.length - 1];
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    // #7975
-    // clone children array to avoid mutating original in case of cloning
-    // a child.
-    vnode.children && vnode.children.slice(),
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-function toggleObserving (value) {
-  shouldObserve = value;
-}
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    if (hasProto) {
-      protoAugment(value, arrayMethods);
-    } else {
-      copyAugment(value, arrayMethods, arrayKeys);
-    }
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through all properties and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment a target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment a target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive$$1 (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if (customSetter) {
-        customSetter();
-      }
-      // #7981: for accessor properties without setter
-      if (getter && !setter) { return }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if (isUndef(target) || isPrimitive(target)
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
-  }
-  defineReactive$$1(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if (isUndef(target) || isPrimitive(target)
-  ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-{
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (
-      toVal !== fromVal &&
-      isPlainObject(toVal) &&
-      isPlainObject(fromVal)
-    ) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
-    }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
-      }
-    }
-  }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
-  }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  
-  // Apply extends and mixins on the child options,
-  // but only if it is a raw options object that isn't
-  // the result of another mergeOptions call.
-  // Only merged options has the _base property.
-  if (!child._base) {
-    if (child.extends) {
-      parent = mergeOptions(parent, child.extends, vm);
-    }
-    if (child.mixins) {
-      for (var i = 0, l = child.mixins.length; i < l; i++) {
-        parent = mergeOptions(parent, child.mixins[i], vm);
-      }
-    }
-  }
-
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if (isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-
-  if (!valid) {
-    warn(
-      getInvalidTypeMessage(name, value, expectedTypes),
-      vm
-    );
-    return
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
-  }
-}
-
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
-
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
-
-function getInvalidTypeMessage (name, value, expectedTypes) {
-  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
-    " Expected " + (expectedTypes.map(capitalize).join(', '));
-  var expectedType = expectedTypes[0];
-  var receivedType = toRawType(value);
-  var expectedValue = styleValue(value, expectedType);
-  var receivedValue = styleValue(value, receivedType);
-  // check if we need to specify expected value
-  if (expectedTypes.length === 1 &&
-      isExplicable(expectedType) &&
-      !isBoolean(expectedType, receivedType)) {
-    message += " with value " + expectedValue;
-  }
-  message += ", got " + receivedType + " ";
-  // check if we need to specify received value
-  if (isExplicable(receivedType)) {
-    message += "with value " + receivedValue + ".";
-  }
-  return message
-}
-
-function styleValue (value, type) {
-  if (type === 'String') {
-    return ("\"" + value + "\"")
-  } else if (type === 'Number') {
-    return ("" + (Number(value)))
-  } else {
-    return ("" + value)
-  }
-}
-
-function isExplicable (value) {
-  var explicitTypes = ['string', 'number', 'boolean'];
-  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
-}
-
-function isBoolean () {
-  var args = [], len = arguments.length;
-  while ( len-- ) args[ len ] = arguments[ len ];
-
-  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;    
-    }
-  })
-}
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
-/*  */
-
-var mark;
-var measure;
-
-{
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-var initProxy;
-
-{
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
-
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
-
-  var warnReservedPrefix = function (target, key) {
-    warn(
-      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
-      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
-      'See: https://vuejs.org/v2/api/#data',
-      target
-    );
-  };
-
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
-      }
-    });
-  }
-
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) ||
-        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
-      if (!has && !isAllowed) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-var seenObjects = new _Set();
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  createOnceHandler,
-  vm
-) {
-  var name, def$$1, cur, old, event;
-  for (name in on) {
-    def$$1 = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      if (isTrue(event.once)) {
-        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
-      }
-      add(event.name, cur, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  var invoker;
-  var oldHook = def[hookKey];
-
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res
-}
-
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      }
-    });
-
-    var reject = once(function (reason) {
-      warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
-  }
-}
-
-/*  */
-
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
-/*  */
-
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
-      }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
-      }
-    }
-    return vm
-  };
-}
-
-/*  */
-
-
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
-  }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function initLifecycle (vm) {
-  var options = vm.$options;
-
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    activeInstance = prevActiveInstance;
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted) {
-        callHook(vm, 'beforeUpdate');
-      }
-    }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
-
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
-  }
-  return false
-}
-
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
-
-/*  */
-
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (!config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-
-
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
-    }
-    this.active = false;
-  }
-};
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
-      }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
-
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
-
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
-  }
-}
-
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
-}
-
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
-      }
-    }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
-
-/*  */
-
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
-
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      }
-    });
-    toggleObserving(true);
-  }
-}
-
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
-    }
-    return result
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (!isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
-  }
-
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  var vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-    }
-    return res
-  }
-}
-
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
-  } else {
-    on[event] = callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
-    }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  }
-}
-
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
-
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-var uid$3 = 0;
-
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if (config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
-    }
-    /* istanbul ignore else */
-    {
-      initProxy(vm);
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if (config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified
-}
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
-function Vue (options) {
-  if (!(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
-
-/*  */
-
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
-
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
-
-/*  */
-
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
-
-/*  */
-
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
-
-    var name = extendOptions.name || Super.options.name;
-    if (name) {
-      validateComponentName(name);
-    }
-
-    var Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
-
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
-
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if (type === 'component') {
-          validateComponentName(id);
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
-    };
-  });
-}
-
-/*  */
-
-
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-
-  destroyed: function destroyed () {
-    for (var key in this.cache) {
-      pruneCacheEntry(this.cache, key, this.keys);
-    }
-  },
-
-  mounted: function mounted () {
-    var this$1 = this;
-
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
-
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-};
-
-var builtInComponents = {
-  KeepAlive: KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue);
-
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
-  }
-});
-
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.18-beta.0';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-var xlinkNS = 'http://www.w3.org/1999/xlink';
-
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
-
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
-
-/*  */
-
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class)
-}
-
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
-
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isPreTag = function (tag) { return tag === 'pre'; };
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
-  }
-  if (isReservedTag(tag)) {
-    return false
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-  }
-}
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
-  }
-}
-
-/*  */
-
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-var nodeOps = /*#__PURE__*/Object.freeze({
-  createElement: createElement$1,
-  createElementNS: createElementNS,
-  createTextNode: createTextNode,
-  createComment: createComment,
-  insertBefore: insertBefore,
-  removeChild: removeChild,
-  appendChild: appendChild,
-  parentNode: parentNode,
-  nextSibling: nextSibling,
-  tagName: tagName,
-  setTextContent: setTextContent,
-  setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
-
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function childrenIgnored (vnode) {
-  return vnode && vnode.data && vnode.data.domProps && (
-    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-  )
-}
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        !childrenIgnored(a) && !childrenIgnored(b) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
-
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
-
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
-  }
-  return map
-}
-
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
-
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
-
-  function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove$$1.listeners = listeners;
-    return remove$$1
-  }
-
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
-
-  var creatingElmInVPre = 0;
-
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
-
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if (data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
-      }
-    }
-  }
-
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (nodeOps.parentNode(ref$$1) === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
-    }
-  }
-
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag)
-  }
-
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
-        }
-        ancestor = ancestor.parent;
-      }
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
-
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
-
-    {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
-        }
-      }
-    }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
-  }
-
-  function patchVnode (
-    oldVnode,
-    vnode,
-    insertedVnodeQueue,
-    ownerArray,
-    index,
-    removeOnly
-  ) {
-    if (oldVnode === vnode) {
-      return
-    }
-
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // clone reused vnode
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    var elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
-
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        {
-          checkDuplicateKeys(ch);
-        }
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
-    }
-  }
-
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if (typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if (typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
-            }
-          }
-        }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true
-  }
-
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
-    }
-  }
-
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
-      return
-    }
-
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
-
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
-
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-            ancestor = ancestor.parent;
-          }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
-  }
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  // $flow-disable-line
-  return res
-}
-
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
-
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
-    }
-  }
-}
-
-var baseModules = [
-  ref,
-  directives
-];
-
-/*  */
-
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    baseSetAttr(el, key, value);
-  }
-}
-
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-    /* istanbul ignore if */
-    if (
-      isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
-    ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
-    }
-    el.setAttribute(key, value);
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-var validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters (exp) {
-  var inSingle = false;
-  var inDouble = false;
-  var inTemplateString = false;
-  var inRegex = false;
-  var curly = 0;
-  var square = 0;
-  var paren = 0;
-  var lastFilterIndex = 0;
-  var c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
-    } else if (
-      c === 0x7C && // pipe
-      exp.charCodeAt(i + 1) !== 0x7C &&
-      exp.charCodeAt(i - 1) !== 0x7C &&
-      !curly && !square && !paren
-    ) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
-      }
-    } else {
-      switch (c) {
-        case 0x22: inDouble = true; break         // "
-        case 0x27: inSingle = true; break         // '
-        case 0x60: inTemplateString = true; break // `
-        case 0x28: paren++; break                 // (
-        case 0x29: paren--; break                 // )
-        case 0x5B: square++; break                // [
-        case 0x5D: square--; break                // ]
-        case 0x7B: curly++; break                 // {
-        case 0x7D: curly--; break                 // }
-      }
-      if (c === 0x2f) { // /
-        var j = i - 1;
-        var p = (void 0);
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') { break }
-        }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
-        }
-      }
-    }
-  }
-
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
-  }
-
-  function pushFilter () {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
-  }
-
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
-    }
-  }
-
-  return expression
-}
-
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
-  }
-}
-
-/*  */
-
-function baseWarn (msg) {
-  console.error(("[Vue compiler]: " + msg));
-}
-
-function pluckModuleFunction (
-  modules,
-  key
-) {
-  return modules
-    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
-    : []
-}
-
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-// add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
-function addDirective (
-  el,
-  name,
-  rawName,
-  value,
-  arg,
-  modifiers
-) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
-  el.plain = false;
-}
-
-function addHandler (
-  el,
-  name,
-  value,
-  modifiers,
-  important,
-  warn
-) {
-  modifiers = modifiers || emptyObject;
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (
-    warn &&
-    modifiers.prevent && modifiers.passive
-  ) {
-    warn(
-      'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
-    );
-  }
-
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
-  // check capture modifier
-  if (modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
-  }
-  /* istanbul ignore if */
-  if (modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
-  }
-
-  var events;
-  if (modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
-  }
-
-  var newHandler = {
-    value: value.trim()
-  };
-  if (modifiers !== emptyObject) {
-    newHandler.modifiers = modifiers;
-  }
-
-  var handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-
-  el.plain = false;
-}
-
-function getBindingAttr (
-  el,
-  name,
-  getStatic
-) {
-  var dynamicValue =
-    getAndRemoveAttr(el, ':' + name) ||
-    getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue)
-  } else if (getStatic !== false) {
-    var staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue)
-    }
-  }
-}
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-function getAndRemoveAttr (
-  el,
-  name,
-  removeFromMap
-) {
-  var val;
-  if ((val = el.attrsMap[name]) != null) {
-    var list = el.attrsList;
-    for (var i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break
-      }
-    }
-  }
-  if (removeFromMap) {
-    delete el.attrsMap[name];
-  }
-  return val
-}
-
-/*  */
-
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-      "? " + baseValueExpression + ".trim()" +
-      ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: ("\"" + value + "\""),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-  };
-}
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var res = parseModel(value);
-  if (res.key === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
-  }
-}
-
-/**
- * Parse a v-model expression into a base path and a final key segment.
- * Handles both dot-path and possible square brackets.
- *
- * Possible cases:
- *
- * - test
- * - test[key]
- * - test[test1[key]]
- * - test["a"][key]
- * - xxx.test[a[a].test1[key]]
- * - test.xxx.a["asa"][test1[key]]
- *
- */
-
-var len, str, chr, index$1, expressionPos, expressionEndPos;
-
-
-
-function parseModel (val) {
-  // Fix https://github.com/vuejs/vue/pull/7730
-  // allow v-model="obj.val " (trailing whitespace)
-  val = val.trim();
-  len = val.length;
-
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    index$1 = val.lastIndexOf('.');
-    if (index$1 > -1) {
-      return {
-        exp: val.slice(0, index$1),
-        key: '"' + val.slice(index$1 + 1) + '"'
-      }
-    } else {
-      return {
-        exp: val,
-        key: null
-      }
-    }
-  }
-
-  str = val;
-  index$1 = expressionPos = expressionEndPos = 0;
-
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
-
-  return {
-    exp: val.slice(0, expressionPos),
-    key: val.slice(expressionPos + 1, expressionEndPos)
-  }
-}
-
-function next () {
-  return str.charCodeAt(++index$1)
-}
-
-function eof () {
-  return index$1 >= len
-}
-
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index$1;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index$1;
-      break
-    }
-  }
-}
-
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
-  }
-}
-
-/*  */
-
-var warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
-
-  {
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
-    }
-  }
-
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else {
-    warn$1(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
-
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-    "?_i(" + value + "," + valueBinding + ")>-1" + (
-      trueValueBinding === 'true'
-        ? (":(" + value + ")")
-        : (":_q(" + value + "," + trueValueBinding + ")")
-    )
-  );
-  addHandler(el, 'change',
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
-      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-
-  // warn if v-bind:value conflicts with v-model
-  // except for inputs with v-bind:type
-  {
-    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (value$1 && !typeBinding) {
-      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
-  }
-
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler$1 (event, handler, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
-    }
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res
-}
-
-/*  */
-
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-var vendorNames = ['Webkit', 'Moz', 'ms'];
-
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
-
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
-  }
-
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
-
-  var style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
-
-  var newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-var whitespaceRE = /\s+/;
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition (def$$1) {
-  if (!def$$1) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
-    var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
-    }
-    extend(res, def$$1);
-    return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
-
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  // JSDOM may return undefined for transition properties
-  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
-  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
-  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
-// in a locale-dependent way, using a comma instead of a dot.
-// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
-// as a floor function) causing unexpected behaviors
-function toMs (s) {
-  return Number(s.slice(0, -1).replace(',', '.')) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if (explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
-
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave (vnode, rm) {
-  var el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
-
-  if (isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show && el.parentNode) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
-            }
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
-
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
-
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: directive,
-  show: show
-};
-
-/*  */
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
-
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data
-}
-
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
-
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
-  }
-}
-
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
-
-var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
-
-var isVShowDirective = function (d) { return d.name === 'show'; };
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render: function render (h) {
-    var this$1 = this;
-
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(isNotTextNode);
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
-
-    // warn multiple elements
-    if (children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
-
-    var mode = this.mode;
-
-    // warn invalid mode
-    if (mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
-
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
-
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
-      child.data.show = true;
-    }
-
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
-      }
-    }
-
-    return rawChild
-  }
-};
-
-/*  */
-
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props: props,
-
-  beforeMount: function beforeMount () {
-    var this$1 = this;
-
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      update.call(this$1, vnode, hydrating);
-    };
-  },
-
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
-        }
-      }
-    }
-
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children)
-  },
-
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (e && e.target !== el) {
-            return
-          }
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
-    }
-  }
-};
-
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        isChrome
-      ) {
-        console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
-        );
-      }
-    }
-    if (config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
-}
-
-/*  */
-
-var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
-var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-var buildRegex = cached(function (delimiters) {
-  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-});
-
-
-
-function parseText (
-  text,
-  delimiters
-) {
-  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return
-  }
-  var tokens = [];
-  var rawTokens = [];
-  var lastIndex = tagRE.lastIndex = 0;
-  var match, index, tokenValue;
-  while ((match = tagRE.exec(text))) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      rawTokens.push(tokenValue = text.slice(lastIndex, index));
-      tokens.push(JSON.stringify(tokenValue));
-    }
-    // tag token
-    var exp = parseFilters(match[1].trim());
-    tokens.push(("_s(" + exp + ")"));
-    rawTokens.push({ '@binding': exp });
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    rawTokens.push(tokenValue = text.slice(lastIndex));
-    tokens.push(JSON.stringify(tokenValue));
-  }
-  return {
-    expression: tokens.join('+'),
-    tokens: rawTokens
-  }
-}
-
-/*  */
-
-function transformNode (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticClass = getAndRemoveAttr(el, 'class');
-  if (staticClass) {
-    var res = parseText(staticClass, options.delimiters);
-    if (res) {
-      warn(
-        "class=\"" + staticClass + "\": " +
-        'Interpolation inside attributes has been removed. ' +
-        'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
-      );
-    }
-  }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
-
-function genData (el) {
-  var data = '';
-  if (el.staticClass) {
-    data += "staticClass:" + (el.staticClass) + ",";
-  }
-  if (el.classBinding) {
-    data += "class:" + (el.classBinding) + ",";
-  }
-  return data
-}
-
-var klass$1 = {
-  staticKeys: ['staticClass'],
-  transformNode: transformNode,
-  genData: genData
-};
-
-/*  */
-
-function transformNode$1 (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
-    {
-      var res = parseText(staticStyle, options.delimiters);
-      if (res) {
-        warn(
-          "style=\"" + staticStyle + "\": " +
-          'Interpolation inside attributes has been removed. ' +
-          'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
-        );
-      }
-    }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-  }
-
-  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
-  }
-}
-
-function genData$1 (el) {
-  var data = '';
-  if (el.staticStyle) {
-    data += "staticStyle:" + (el.staticStyle) + ",";
-  }
-  if (el.styleBinding) {
-    data += "style:(" + (el.styleBinding) + "),";
-  }
-  return data
-}
-
-var style$1 = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-};
-
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
-  }
-};
-
-/*  */
-
-var isUnaryTag = makeMap(
-  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-  'link,meta,param,source,track,wbr'
-);
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-var canBeLeftOpenTag = makeMap(
-  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-);
-
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-var isNonPhrasingTag = makeMap(
-  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-  'title,tr,track'
-);
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-// Regular Expressions for parsing tags and attributes
-var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-var startTagOpen = new RegExp(("^<" + qnameCapture));
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
-var comment = /^<!\--/;
-var conditionalComment = /^<!\[/;
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n',
-  '&#9;': '\t'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) { return decodingMap[match]; })
-}
-
-function parseHTML (html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
-            }
-            advance(commentEnd + 3);
-            continue
-          }
-        }
-
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          var conditionalEnd = html.indexOf(']>');
-
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
-            continue
-          }
-        }
-
-        // Doctype:
-        var doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue
-        }
-
-        // End tag:
-        var endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          var curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue
-        }
-
-        // Start tag:
-        var startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
-            advance(1);
-          }
-          continue
-        }
-      }
-
-      var text = (void 0), rest = (void 0), next = (void 0);
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (
-          !endTag.test(rest) &&
-          !startTagOpen.test(rest) &&
-          !comment.test(rest) &&
-          !conditionalComment.test(rest)
-        ) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) { break }
-          textEnd += next;
-          rest = html.slice(textEnd);
-        }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
-      }
-
-      if (textEnd < 0) {
-        text = html;
-        html = '';
-      }
-
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      var endTagLength = 0;
-      var stackedTag = lastTag.toLowerCase();
-      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text
-            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
-            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return ''
-      });
-      index += html.length - rest$1.length;
-      html = rest$1;
-      parseEndTag(stackedTag, index - endTagLength, index);
-    }
-
-    if (html === last) {
-      options.chars && options.chars(html);
-      if (!stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
-      }
-      break
-    }
-  }
-
-  // Clean up any remaining tags
-  parseEndTag();
-
-  function advance (n) {
-    index += n;
-    html = html.substring(n);
-  }
-
-  function parseStartTag () {
-    var start = html.match(startTagOpen);
-    if (start) {
-      var match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match
-      }
-    }
-  }
-
-  function handleStartTag (match) {
-    var tagName = match.tagName;
-    var unarySlash = match.unarySlash;
-
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
-      }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
-      }
-    }
-
-    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
-
-    var l = match.attrs.length;
-    var attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      var args = match.attrs[i];
-      var value = args[3] || args[4] || args[5] || '';
-      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-        ? options.shouldDecodeNewlinesForHref
-        : options.shouldDecodeNewlines;
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, shouldDecodeNewlines)
-      };
-    }
-
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
-
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
-    }
-  }
-
-  function parseEndTag (tagName, start, end) {
-    var pos, lowerCasedTagName;
-    if (start == null) { start = index; }
-    if (end == null) { end = index; }
-
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break
-        }
-      }
-    } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
-    }
-
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (var i = stack.length - 1; i >= pos; i--) {
-        if (i > pos || !tagName &&
-          options.warn
-        ) {
-          options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
-          );
-        }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
-        }
-      }
-
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
-      }
-      if (options.end) {
-        options.end(tagName, start, end);
-      }
-    }
-  }
-}
-
-/*  */
-
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
-var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
-var stripParensRE = /^\(|\)$/g;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$2;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
-
-
-function createASTElement (
-  tag,
-  attrs,
-  parent
-) {
-  return {
-    type: 1,
-    tag: tag,
-    attrsList: attrs,
-    attrsMap: makeAttrsMap(attrs),
-    parent: parent,
-    children: []
-  }
-}
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$2 = options.warn || baseWarn;
-
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
-
-  var stack = [];
-  var preserveWhitespace = options.preserveWhitespace !== false;
-  var root;
-  var currentParent;
-  var inVPre = false;
-  var inPre = false;
-  var warned = false;
-
-  function warnOnce (msg) {
-    if (!warned) {
-      warned = true;
-      warn$2(msg);
-    }
-  }
-
-  function closeElement (element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-    // apply post-transforms
-    for (var i = 0; i < postTransforms.length; i++) {
-      postTransforms[i](element, options);
-    }
-  }
-
-  parseHTML(template, {
-    warn: warn$2,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-    shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
-
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
-
-      var element = createASTElement(tag, attrs, currentParent);
-      if (ns) {
-        element.ns = ns;
-      }
-
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        warn$2(
-          'Templates should only be responsible for mapping the state to the ' +
-          'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
-        );
-      }
-
-      // apply pre-transforms
-      for (var i = 0; i < preTransforms.length; i++) {
-        element = preTransforms[i](element, options) || element;
-      }
-
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
-      }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else if (!element.processed) {
-        // structural directives
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
-
-      function checkRootConstraints (el) {
-        {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
-      }
-
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
-      }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
-      } else {
-        closeElement(element);
-      }
-    },
-
-    end: function end () {
-      // remove trailing whitespace
-      var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      closeElement(element);
-    },
-
-    chars: function chars (text) {
-      if (!currentParent) {
-        {
-          if (text === template) {
-            warnOnce(
-              'Component template requires a root element, rather than just text.'
-            );
-          } else if ((text = text.trim())) {
-            warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
-            );
-          }
-        }
-        return
-      }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE &&
-        currentParent.tag === 'textarea' &&
-        currentParent.attrsMap.placeholder === text
-      ) {
-        return
-      }
-      var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        var res;
-        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression: res.expression,
-            tokens: res.tokens,
-            text: text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text: text
-          });
-        }
-      }
-    },
-    comment: function comment (text) {
-      currentParent.children.push({
-        type: 3,
-        text: text,
-        isComment: true
-      });
-    }
-  });
-  return root
-}
-
-function processPre (el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
-    }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
-  }
-}
-
-function processElement (element, options) {
-  processKey(element);
-
-  // determine whether this is a plain element after
-  // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
-
-  processRef(element);
-  processSlot(element);
-  processComponent(element);
-  for (var i = 0; i < transforms.length; i++) {
-    element = transforms[i](element, options) || element;
-  }
-  processAttrs(element);
-}
-
-function processKey (el) {
-  var exp = getBindingAttr(el, 'key');
-  if (exp) {
-    {
-      if (el.tag === 'template') {
-        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
-      }
-      if (el.for) {
-        var iterator = el.iterator2 || el.iterator1;
-        var parent = el.parent;
-        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
-          warn$2(
-            "Do not use v-for index as key on <transtion-group> children, " +
-            "this is the same as not using keys."
-          );
-        }
-      }
-    }
-    el.key = exp;
-  }
-}
-
-function processRef (el) {
-  var ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
-  }
-}
-
-function processFor (el) {
-  var exp;
-  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var res = parseFor(exp);
-    if (res) {
-      extend(el, res);
-    } else {
-      warn$2(
-        ("Invalid v-for expression: " + exp)
-      );
-    }
-  }
-}
-
-
-
-function parseFor (exp) {
-  var inMatch = exp.match(forAliasRE);
-  if (!inMatch) { return }
-  var res = {};
-  res.for = inMatch[2].trim();
-  var alias = inMatch[1].trim().replace(stripParensRE, '');
-  var iteratorMatch = alias.match(forIteratorRE);
-  if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '').trim();
-    res.iterator1 = iteratorMatch[1].trim();
-    if (iteratorMatch[2]) {
-      res.iterator2 = iteratorMatch[2].trim();
-    }
-  } else {
-    res.alias = alias;
-  }
-  return res
-}
-
-function processIf (el) {
-  var exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
-    }
-    var elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
-    }
-  }
-}
-
-function processIfConditions (el, parent) {
-  var prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else {
-    warn$2(
-      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
-    );
-  }
-}
-
-function findPrevElement (children) {
-  var i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i]
-    } else {
-      if (children[i].text !== ' ') {
-        warn$2(
-          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
-        );
-      }
-      children.pop();
-    }
-  }
-}
-
-function addIfCondition (el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
-  }
-  el.ifConditions.push(condition);
-}
-
-function processOnce (el) {
-  var once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
-  }
-}
-
-function processSlot (el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if (el.key) {
-      warn$2(
-        "`key` does not work on <slot> because slots are abstract outlets " +
-        "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
-      );
-    }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if (slotScope) {
-        warn$2(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if (el.attrsMap['v-for']) {
-        warn$2(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
-      }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
-    }
-  }
-}
-
-function processComponent (el) {
-  var binding;
-  if ((binding = getBindingAttr(el, 'is'))) {
-    el.component = binding;
-  }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
-  }
-}
-
-function processAttrs (el) {
-  var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
-      }
-      if (bindRE.test(name)) { // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (
-          value.trim().length === 0
-        ) {
-          warn$2(
-            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
-          );
-        }
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') { name = 'innerHTML'; }
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
-            );
-          }
-        }
-        if (isProp || (
-          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-        )) {
-          addProp(el, name, value);
-        } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) { // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
-      } else { // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        var argMatch = name.match(argRE);
-        var arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
-        }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if (name === 'model') {
-          checkForAliasModel(el, value);
-        }
-      }
-    } else {
-      // literal attribute
-      {
-        var res = parseText(value, delimiters);
-        if (res) {
-          warn$2(
-            name + "=\"" + value + "\": " +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
-          );
-        }
-      }
-      addAttr(el, name, JSON.stringify(value));
-      // #6887 firefox doesn't update muted state if set via attribute
-      // even immediately after element creation
-      if (!el.component &&
-          name === 'muted' &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
-      }
-    }
-  }
-}
-
-function checkInFor (el) {
-  var parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true
-    }
-    parent = parent.parent;
-  }
-  return false
-}
-
-function parseModifiers (name) {
-  var match = name.match(modifierRE);
-  if (match) {
-    var ret = {};
-    match.forEach(function (m) { ret[m.slice(1)] = true; });
-    return ret
-  }
-}
-
-function makeAttrsMap (attrs) {
-  var map = {};
-  for (var i = 0, l = attrs.length; i < l; i++) {
-    if (
-      map[attrs[i].name] && !isIE && !isEdge
-    ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
-    }
-    map[attrs[i].name] = attrs[i].value;
-  }
-  return map
-}
-
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
-
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
-}
-
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
-
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
-  }
-  return res
-}
-
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
-    }
-    _el = _el.parent;
-  }
-}
-
-/*  */
-
-function preTransformNode (el, options) {
-  if (el.tag === 'input') {
-    var map = el.attrsMap;
-    if (!map['v-model']) {
-      return
-    }
-
-    var typeBinding;
-    if (map[':type'] || map['v-bind:type']) {
-      typeBinding = getBindingAttr(el, 'type');
-    }
-    if (!map.type && !typeBinding && map['v-bind']) {
-      typeBinding = "(" + (map['v-bind']) + ").type";
-    }
-
-    if (typeBinding) {
-      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
-      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
-      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-      // 1. checkbox
-      var branch0 = cloneASTElement(el);
-      // process for on the main node
-      processFor(branch0);
-      addRawAttr(branch0, 'type', 'checkbox');
-      processElement(branch0, options);
-      branch0.processed = true; // prevent it from double-processed
-      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
-      addIfCondition(branch0, {
-        exp: branch0.if,
-        block: branch0
-      });
-      // 2. add radio else-if condition
-      var branch1 = cloneASTElement(el);
-      getAndRemoveAttr(branch1, 'v-for', true);
-      addRawAttr(branch1, 'type', 'radio');
-      processElement(branch1, options);
-      addIfCondition(branch0, {
-        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
-        block: branch1
-      });
-      // 3. other
-      var branch2 = cloneASTElement(el);
-      getAndRemoveAttr(branch2, 'v-for', true);
-      addRawAttr(branch2, ':type', typeBinding);
-      processElement(branch2, options);
-      addIfCondition(branch0, {
-        exp: ifCondition,
-        block: branch2
-      });
-
-      if (hasElse) {
-        branch0.else = true;
-      } else if (elseIfCondition) {
-        branch0.elseif = elseIfCondition;
-      }
-
-      return branch0
-    }
-  }
-}
-
-function cloneASTElement (el) {
-  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-}
-
-var model$1 = {
-  preTransformNode: preTransformNode
-};
-
-var modules$1 = [
-  klass$1,
-  style$1,
-  model$1
-];
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
-};
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var isStaticKey;
-var isPlatformReservedTag;
-
-var genStaticKeysCached = cached(genStaticKeys$1);
-
-/**
- * Goal of the optimizer: walk the generated template AST tree
- * and detect sub-trees that are purely static, i.e. parts of
- * the DOM that never needs to change.
- *
- * Once we detect these sub-trees, we can:
- *
- * 1. Hoist them into constants, so that we no longer need to
- *    create fresh nodes for them on each re-render;
- * 2. Completely skip them in the patching process.
- */
-function optimize (root, options) {
-  if (!root) { return }
-  isStaticKey = genStaticKeysCached(options.staticKeys || '');
-  isPlatformReservedTag = options.isReservedTag || no;
-  // first pass: mark all non-static nodes.
-  markStatic$1(root);
-  // second pass: mark static roots.
-  markStaticRoots(root, false);
-}
-
-function genStaticKeys$1 (keys) {
-  return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
-    (keys ? ',' + keys : '')
-  )
-}
-
-function markStatic$1 (node) {
-  node.static = isStatic(node);
-  if (node.type === 1) {
-    // do not make component slot content static. this avoids
-    // 1. components not able to mutate slot nodes
-    // 2. static slot content fails for hot-reloading
-    if (
-      !isPlatformReservedTag(node.tag) &&
-      node.tag !== 'slot' &&
-      node.attrsMap['inline-template'] == null
-    ) {
-      return
-    }
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      markStatic$1(child);
-      if (!child.static) {
-        node.static = false;
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        markStatic$1(block);
-        if (!block.static) {
-          node.static = false;
-        }
-      }
-    }
-  }
-}
-
-function markStaticRoots (node, isInFor) {
-  if (node.type === 1) {
-    if (node.static || node.once) {
-      node.staticInFor = isInFor;
-    }
-    // For a node to qualify as a static root, it should have children that
-    // are not just static text. Otherwise the cost of hoisting out will
-    // outweigh the benefits and it's better off to just always render it fresh.
-    if (node.static && node.children.length && !(
-      node.children.length === 1 &&
-      node.children[0].type === 3
-    )) {
-      node.staticRoot = true;
-      return
-    } else {
-      node.staticRoot = false;
-    }
-    if (node.children) {
-      for (var i = 0, l = node.children.length; i < l; i++) {
-        markStaticRoots(node.children[i], isInFor || !!node.for);
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        markStaticRoots(node.ifConditions[i$1].block, isInFor);
-      }
-    }
-  }
-}
-
-function isStatic (node) {
-  if (node.type === 2) { // expression
-    return false
-  }
-  if (node.type === 3) { // text
-    return true
-  }
-  return !!(node.pre || (
-    !node.hasBindings && // no dynamic bindings
-    !node.if && !node.for && // not v-if or v-for or v-else
-    !isBuiltInTag(node.tag) && // not a built-in
-    isPlatformReservedTag(node.tag) && // not a component
-    !isDirectChildOfTemplateFor(node) &&
-    Object.keys(node).every(isStaticKey)
-  ))
-}
-
-function isDirectChildOfTemplateFor (node) {
-  while (node.parent) {
-    node = node.parent;
-    if (node.tag !== 'template') {
-      return false
-    }
-    if (node.for) {
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
-
-// KeyboardEvent.keyCode aliases
-var keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// KeyboardEvent.key aliases
-var keyNames = {
-  // #7880: IE11 and Edge use `Esc` for Escape key name.
-  esc: ['Esc', 'Escape'],
-  tab: 'Tab',
-  enter: 'Enter',
-  space: ' ',
-  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
-  up: ['Up', 'ArrowUp'],
-  left: ['Left', 'ArrowLeft'],
-  right: ['Right', 'ArrowRight'],
-  down: ['Down', 'ArrowDown'],
-  'delete': ['Backspace', 'Delete']
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
-
-var modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard("$event.target !== $event.currentTarget"),
-  ctrl: genGuard("!$event.ctrlKey"),
-  shift: genGuard("!$event.shiftKey"),
-  alt: genGuard("!$event.altKey"),
-  meta: genGuard("!$event.metaKey"),
-  left: genGuard("'button' in $event && $event.button !== 0"),
-  middle: genGuard("'button' in $event && $event.button !== 1"),
-  right: genGuard("'button' in $event && $event.button !== 2")
-};
-
-function genHandlers (
-  events,
-  isNative
-) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
-  for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
-  }
-  return res.slice(0, -1) + '}'
-}
-
-function genHandler (
-  name,
-  handler
-) {
-  if (!handler) {
-    return 'function(){}'
-  }
-
-  if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
-  }
-
-  var isMethodPath = simplePathRE.test(handler.value);
-  var isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    if (isMethodPath || isFunctionExpression) {
-      return handler.value
-    }
-    return ("function($event){" + (handler.value) + "}") // inline statement
-  } else {
-    var code = '';
-    var genModifierCode = '';
-    var keys = [];
-    for (var key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else if (key === 'exact') {
-        var modifiers = (handler.modifiers);
-        genModifierCode += genGuard(
-          ['ctrl', 'shift', 'alt', 'meta']
-            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
-            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
-            .join('||')
-        );
-      } else {
-        keys.push(key);
-      }
-    }
-    if (keys.length) {
-      code += genKeyFilter(keys);
-    }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
-    }
-    var handlerCode = isMethodPath
-      ? ("return " + (handler.value) + "($event)")
-      : isFunctionExpression
-        ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
-    return ("function($event){" + code + handlerCode + "}")
-  }
-}
-
-function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
-}
-
-function genFilterCode (key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return ("$event.keyCode!==" + keyVal)
-  }
-  var keyCode = keyCodes[key];
-  var keyName = keyNames[key];
-  return (
-    "_k($event.keyCode," +
-    (JSON.stringify(key)) + "," +
-    (JSON.stringify(keyCode)) + "," +
-    "$event.key," +
-    "" + (JSON.stringify(keyName)) +
-    ")"
-  )
-}
-
-/*  */
-
-function on (el, dir) {
-  if (dir.modifiers) {
-    warn("v-on without argument does not support modifiers.");
-  }
-  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
-}
-
-/*  */
-
-function bind$1 (el, dir) {
-  el.wrapData = function (code) {
-    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on: on,
-  bind: bind$1,
-  cloak: noop
-};
-
-/*  */
-
-
-
-
-
-var CodegenState = function CodegenState (options) {
-  this.options = options;
-  this.warn = options.warn || baseWarn;
-  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  this.directives = extend(extend({}, baseDirectives), options.directives);
-  var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
-  this.onceId = 0;
-  this.staticRenderFns = [];
-  this.pre = false;
-};
-
-
-
-function generate (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genElement (el, state) {
-  if (el.parent) {
-    el.pre = el.pre || el.parent.pre;
-  }
-
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state)
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state)
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
-    return genChildren(el, state) || 'void 0'
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state)
-  } else {
-    // component or element
-    var code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
-    } else {
-      var data;
-      if (!el.plain || (el.pre && state.maybeComponent(el))) {
-        data = genData$2(el, state);
-      }
-
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
-    }
-    // module transforms
-    for (var i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code
-  }
-}
-
-// hoist static sub-trees out
-function genStatic (el, state) {
-  el.staticProcessed = true;
-  // Some elements (templates) need to behave differently inside of a v-pre
-  // node.  All pre nodes are static roots, so we can use this as a location to
-  // wrap a state change and reset it upon exiting the pre node.
-  var originalPreState = state.pre;
-  if (el.pre) {
-    state.pre = el.pre;
-  }
-  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  state.pre = originalPreState;
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
-}
-
-// v-once
-function genOnce (el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.staticInFor) {
-    var key = '';
-    var parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break
-      }
-      parent = parent.parent;
-    }
-    if (!key) {
-      state.warn(
-        "v-once can only be used inside v-for that is keyed. "
-      );
-      return genElement(el, state)
-    }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
-  } else {
-    return genStatic(el, state)
-  }
-}
-
-function genIf (
-  el,
-  state,
-  altGen,
-  altEmpty
-) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-}
-
-function genIfConditions (
-  conditions,
-  state,
-  altGen,
-  altEmpty
-) {
-  if (!conditions.length) {
-    return altEmpty || '_e()'
-  }
-
-  var condition = conditions.shift();
-  if (condition.exp) {
-    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
-  } else {
-    return ("" + (genTernaryExp(condition.block)))
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp (el) {
-    return altGen
-      ? altGen(el, state)
-      : el.once
-        ? genOnce(el, state)
-        : genElement(el, state)
-  }
-}
-
-function genFor (
-  el,
-  state,
-  altGen,
-  altHelper
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-
-  if (state.maybeComponent(el) &&
-    el.tag !== 'slot' &&
-    el.tag !== 'template' &&
-    !el.key
-  ) {
-    state.warn(
-      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
-      "v-for should have explicit keys. " +
-      "See https://vuejs.org/guide/list.html#key for more info.",
-      true /* tip */
-    );
-  }
-
-  el.forProcessed = true; // avoid recursion
-  return (altHelper || '_l') + "((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + ((altGen || genElement)(el, state)) +
-    '})'
-}
-
-function genData$2 (el, state) {
-  var data = '{';
-
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el, state);
-  if (dirs) { data += dirs + ','; }
-
-  // key
-  if (el.key) {
-    data += "key:" + (el.key) + ",";
-  }
-  // ref
-  if (el.ref) {
-    data += "ref:" + (el.ref) + ",";
-  }
-  if (el.refInFor) {
-    data += "refInFor:true,";
-  }
-  // pre
-  if (el.pre) {
-    data += "pre:true,";
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += "tag:\"" + (el.tag) + "\",";
-  }
-  // module data generation functions
-  for (var i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
-  }
-  // DOM props
-  if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
-  }
-  // event handlers
-  if (el.events) {
-    data += (genHandlers(el.events, false)) + ",";
-  }
-  if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true)) + ",";
-  }
-  // slot target
-  // only for non-scoped slots
-  if (el.slotTarget && !el.slotScope) {
-    data += "slot:" + (el.slotTarget) + ",";
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
-  }
-  // component v-model
-  if (el.model) {
-    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += inlineTemplate + ",";
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data
-}
-
-function genDirectives (el, state) {
-  var dirs = el.directives;
-  if (!dirs) { return }
-  var res = 'directives:[';
-  var hasRuntime = false;
-  var i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    var gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']'
-  }
-}
-
-function genInlineTemplate (el, state) {
-  var ast = el.children[0];
-  if (el.children.length !== 1 || ast.type !== 1) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, state.options);
-    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
-  }
-}
-
-function genScopedSlots (
-  slots,
-  state
-) {
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
-}
-
-function genScopedSlot (
-  key,
-  el,
-  state
-) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
-  }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
-    "return " + (el.tag === 'template'
-      ? el.if
-        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
-      : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
-}
-
-function genChildren (
-  el,
-  state,
-  checkSkip,
-  altGenElement,
-  altGenNode
-) {
-  var children = el.children;
-  if (children.length) {
-    var el$1 = children[0];
-    // optimize single v-for
-    if (children.length === 1 &&
-      el$1.for &&
-      el$1.tag !== 'template' &&
-      el$1.tag !== 'slot'
-    ) {
-      var normalizationType = checkSkip && state.maybeComponent(el$1) ? ",1" : "";
-      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
-    }
-    var normalizationType$1 = checkSkip
-      ? getNormalizationType(children, state.maybeComponent)
-      : 0;
-    var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType (
-  children,
-  maybeComponent
-) {
-  var res = 0;
-  for (var i = 0; i < children.length; i++) {
-    var el = children[i];
-    if (el.type !== 1) {
-      continue
-    }
-    if (needsNormalization(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
-      res = 2;
-      break
-    }
-    if (maybeComponent(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
-      res = 1;
-    }
-  }
-  return res
-}
-
-function needsNormalization (el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-}
-
-function genNode (node, state) {
-  if (node.type === 1) {
-    return genElement(node, state)
-  } else if (node.type === 3 && node.isComment) {
-    return genComment(node)
-  } else {
-    return genText(node)
-  }
-}
-
-function genText (text) {
-  return ("_v(" + (text.type === 2
-    ? text.expression // no need for () because already wrapped in _s()
-    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
-}
-
-function genComment (comment) {
-  return ("_e(" + (JSON.stringify(comment.text)) + ")")
-}
-
-function genSlot (el, state) {
-  var slotName = el.slotName || '"default"';
-  var children = genChildren(el, state);
-  var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
-  var bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += ",null";
-  }
-  if (attrs) {
-    res += "," + attrs;
-  }
-  if (bind$$1) {
-    res += (attrs ? '' : ',null') + "," + bind$$1;
-  }
-  return res + ')'
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (
-  componentName,
-  el,
-  state
-) {
-  var children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
-}
-
-function genProps (props) {
-  var res = '';
-  for (var i = 0; i < props.length; i++) {
-    var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
-    }
-  }
-  return res.slice(0, -1)
-}
-
-// #3895, #4268
-function transformSpecialNewlines (text) {
-  return text
-    .replace(/\u2028/g, '\\u2028')
-    .replace(/\u2029/g, '\\u2029')
-}
-
-/*  */
-
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-var prohibitedKeywordRE = new RegExp('\\b' + (
-  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-  'super,throw,while,yield,delete,export,import,return,switch,default,' +
-  'extends,finally,continue,debugger,function,arguments'
-).split(',').join('\\b|\\b') + '\\b');
-
-// these unary operators should not be used as property/method names
-var unaryOperatorsRE = new RegExp('\\b' + (
-  'delete,typeof,void'
-).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
-
-// strip strings in expressions
-var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
-
-// detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
-  if (ast) {
-    checkNode(ast, errors);
-  }
-  return errors
-}
-
-function checkNode (node, errors) {
-  if (node.type === 1) {
-    for (var name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        var value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
-          } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
-          }
-        }
-      }
-    }
-    if (node.children) {
-      for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
-      }
-    }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
-  }
-}
-
-function checkEvent (exp, text, errors) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
-      "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
-    );
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier (
-  ident,
-  type,
-  text,
-  errors
-) {
-  if (typeof ident === 'string') {
-    try {
-      new Function(("var " + ident + "=_"));
-    } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
-    }
-  }
-}
-
-function checkExpression (exp, text, errors) {
-  try {
-    new Function(("return " + exp));
-  } catch (e) {
-    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push(
-        "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
-      );
-    } else {
-      errors.push(
-        "invalid expression: " + (e.message) + " in\n\n" +
-        "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
-      );
-    }
-  }
-}
-
-/*  */
-
-
-
-function createFunction (code, errors) {
-  try {
-    return new Function(code)
-  } catch (err) {
-    errors.push({ err: err, code: code });
-    return noop
-  }
-}
-
-function createCompileToFunctionFn (compile) {
-  var cache = Object.create(null);
-
-  return function compileToFunctions (
-    template,
-    options,
-    vm
-  ) {
-    options = extend({}, options);
-    var warn$$1 = options.warn || warn;
-    delete options.warn;
-
-    /* istanbul ignore if */
-    {
-      // detect possible CSP restriction
-      try {
-        new Function('return 1');
-      } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$$1(
-            'It seems you are using the standalone build of Vue.js in an ' +
-            'environment with Content Security Policy that prohibits unsafe-eval. ' +
-            'The template compiler cannot work in this environment. Consider ' +
-            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-            'templates into render functions.'
-          );
-        }
-      }
-    }
-
-    // check cache
-    var key = options.delimiters
-      ? String(options.delimiters) + template
-      : template;
-    if (cache[key]) {
-      return cache[key]
-    }
-
-    // compile
-    var compiled = compile(template, options);
-
-    // check compilation errors/tips
-    {
-      if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
-        );
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
-      }
-    }
-
-    // turn code into functions
-    var res = {};
-    var fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-      return createFunction(code, fnGenErrors)
-    });
-
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
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-        {
-          warn('invalid template option:' + template, this);
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diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
deleted file mode 100644
index 295fc28f440..00000000000
--- a/dist/vue.common.prod.js
+++ /dev/null
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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
deleted file mode 100644
index d818935dbd5..00000000000
--- a/dist/vue.esm.browser.js
+++ /dev/null
@@ -1,10733 +0,0 @@
-/*!
- * Vue.js v2.5.8
- * (c) 2014-2017 Evan You
- * Released under the MIT License.
- */
-/*  */
-
-const emptyObject = Object.freeze({});
-
-// these helpers produces better vm code in JS engines due to their
-// explicitness and function inlining
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value e.g. [object Object]
- */
-const _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  const n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert a input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  const n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  const map = Object.create(null);
-  const list = str.split(',');
-  for (let i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? val => map[val.toLowerCase()]
-    : val => map[val]
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-const isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if a attribute is a reserved attribute.
- */
-const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array
- */
-function remove (arr, item) {
-  if (arr.length) {
-    const index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether the object has the property.
- */
-const hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  const cache = Object.create(null);
-  return (function cachedFn (str) {
-    const hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-const camelizeRE = /-(\w)/g;
-const camelize = cached((str) => {
-  return str.replace(camelizeRE, (_, c) => c ? c.toUpperCase() : '')
-});
-
-/**
- * Capitalize a string.
- */
-const capitalize = cached((str) => {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-const hyphenateRE = /\B([A-Z])/g;
-const hyphenate = cached((str) => {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind, faster than native
- */
-function bind (fn, ctx) {
-  function boundFn (a) {
-    const l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-  // record original fn length
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  let i = list.length - start;
-  const ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (const key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  const res = {};
-  for (let i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/)
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-const no = (a, b, c) => false;
-
-/**
- * Return same value
- */
-const identity = (_) => _;
-
-/**
- * Generate a static keys string from compiler modules.
- */
-function genStaticKeys (modules) {
-  return modules.reduce((keys, m) => {
-    return keys.concat(m.staticKeys || [])
-  }, []).join(',')
-}
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) return true
-  const isObjectA = isObject(a);
-  const isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      const isArrayA = Array.isArray(a);
-      const isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every((e, i) => {
-          return looseEqual(e, b[i])
-        })
-      } else if (!isArrayA && !isArrayB) {
-        const keysA = Object.keys(a);
-        const keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(key => {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}
-
-function looseIndexOf (arr, val) {
-  for (let i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) return i
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  let called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-const SSR_ATTR = 'data-server-rendered';
-
-const ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-const LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: "development" !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: "development" !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  const c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
-
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/**
- * Parse simple path.
- */
-const bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  const segments = path.split('.');
-  return function (obj) {
-    for (let i = 0; i < segments.length; i++) {
-      if (!obj) return
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-
-// can we use __proto__?
-const hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-const inBrowser = typeof window !== 'undefined';
-const inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-const weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-const UA = inBrowser && window.navigator.userAgent.toLowerCase();
-const isIE = UA && /msie|trident/.test(UA);
-const isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-const isEdge = UA && UA.indexOf('edge/') > 0;
-const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-const nativeWatch = ({}).watch;
-
-let supportsPassive = false;
-if (inBrowser) {
-  try {
-    const opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-let _isServer;
-const isServerRendering = () => {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-const devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-const hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-let _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = class Set   {
-    
-    constructor () {
-      this.set = Object.create(null);
-    }
-    has (key) {
-      return this.set[key] === true
-    }
-    add (key) {
-      this.set[key] = true;
-    }
-    clear () {
-      this.set = Object.create(null);
-    }
-  };
-}
-
-/*  */
-
-let warn = noop;
-let tip = noop;
-let generateComponentTrace = (noop); // work around flow check
-let formatComponentName = (noop);
-
-{
-  const hasConsole = typeof console !== 'undefined';
-  const classifyRE = /(?:^|[-_])(\w)/g;
-  const classify = str => str
-    .replace(classifyRE, c => c.toUpperCase())
-    .replace(/[-_]/g, '');
-
-  warn = (msg, vm) => {
-    const trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(`[Vue warn]: ${msg}${trace}`);
-    }
-  };
-
-  tip = (msg, vm) => {
-    if (hasConsole && (!config.silent)) {
-      console.warn(`[Vue tip]: ${msg}` + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = (vm, includeFile) => {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    const options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    let name = options.name || options._componentTag;
-    const file = options.__file;
-    if (!name && file) {
-      const match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? `<${classify(name)}>` : `<Anonymous>`) +
-      (file && includeFile !== false ? ` at ${file}` : '')
-    )
-  };
-
-  const repeat = (str, n) => {
-    let res = '';
-    while (n) {
-      if (n % 2 === 1) res += str;
-      if (n > 1) str += str;
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = vm => {
-    if (vm._isVue && vm.$parent) {
-      const tree = [];
-      let currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          const last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map((vm, i) => `${
-          i === 0 ? '---> ' : repeat(' ', 5 + i * 2)
-        }${
-          Array.isArray(vm)
-            ? `${formatComponentName(vm[0])}... (${vm[1]} recursive calls)`
-            : formatComponentName(vm)
-        }`)
-        .join('\n')
-    } else {
-      return `\n\n(found in ${formatComponentName(vm)})`
-    }
-  };
-}
-
-/*  */
-
-
-let uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-class Dep {
-  
-  
-  
-
-  constructor () {
-    this.id = uid++;
-    this.subs = [];
-  }
-
-  addSub (sub) {
-    this.subs.push(sub);
-  }
-
-  removeSub (sub) {
-    remove(this.subs, sub);
-  }
-
-  depend () {
-    if (Dep.target) {
-      Dep.target.addDep(this);
-    }
-  }
-
-  notify () {
-    // stabilize the subscriber list first
-    const subs = this.subs.slice();
-    for (let i = 0, l = subs.length; i < l; i++) {
-      subs[i].update();
-    }
-  }
-}
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-const targetStack = [];
-
-function pushTarget (_target) {
-  if (Dep.target) targetStack.push(Dep.target);
-  Dep.target = _target;
-}
-
-function popTarget () {
-  Dep.target = targetStack.pop();
-}
-
-/*  */
-
-class VNode {
-  
-  
-  
-  
-  
-  
-   // rendered in this component's scope
-  
-  
-   // component instance
-   // component placeholder node
-
-  // strictly internal
-   // contains raw HTML? (server only)
-   // hoisted static node
-   // necessary for enter transition check
-   // empty comment placeholder?
-   // is a cloned node?
-   // is a v-once node?
-   // async component factory function
-  
-  
-  
-   // real context vm for functional nodes
-   // for SSR caching
-   // functioanl scope id support
-
-  constructor (
-    tag,
-    data,
-    children,
-    text,
-    elm,
-    context,
-    componentOptions,
-    asyncFactory
-  ) {
-    this.tag = tag;
-    this.data = data;
-    this.children = children;
-    this.text = text;
-    this.elm = elm;
-    this.ns = undefined;
-    this.context = context;
-    this.functionalContext = undefined;
-    this.functionalOptions = undefined;
-    this.functionalScopeId = undefined;
-    this.key = data && data.key;
-    this.componentOptions = componentOptions;
-    this.componentInstance = undefined;
-    this.parent = undefined;
-    this.raw = false;
-    this.isStatic = false;
-    this.isRootInsert = true;
-    this.isComment = false;
-    this.isCloned = false;
-    this.isOnce = false;
-    this.asyncFactory = asyncFactory;
-    this.asyncMeta = undefined;
-    this.isAsyncPlaceholder = false;
-  }
-
-  // DEPRECATED: alias for componentInstance for backwards compat.
-  /* istanbul ignore next */
-  get child () {
-    return this.componentInstance
-  }
-}
-
-const createEmptyVNode = (text = '') => {
-  const node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode, deep) {
-  const componentOptions = vnode.componentOptions;
-  const cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    vnode.children,
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.isCloned = true;
-  if (deep) {
-    if (vnode.children) {
-      cloned.children = cloneVNodes(vnode.children, true);
-    }
-    if (componentOptions && componentOptions.children) {
-      componentOptions.children = cloneVNodes(componentOptions.children, true);
-    }
-  }
-  return cloned
-}
-
-function cloneVNodes (vnodes, deep) {
-  const len = vnodes.length;
-  const res = new Array(len);
-  for (let i = 0; i < len; i++) {
-    res[i] = cloneVNode(vnodes[i], deep);
-  }
-  return res
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-const arrayProto = Array.prototype;
-const arrayMethods = Object.create(arrayProto);[
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-]
-.forEach(function (method) {
-  // cache original method
-  const original = arrayProto[method];
-  def(arrayMethods, method, function mutator (...args) {
-    const result = original.apply(this, args);
-    const ob = this.__ob__;
-    let inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) ob.observeArray(inserted);
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-const arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * By default, when a reactive property is set, the new value is
- * also converted to become reactive. However when passing down props,
- * we don't want to force conversion because the value may be a nested value
- * under a frozen data structure. Converting it would defeat the optimization.
- */
-const observerState = {
-  shouldConvert: true
-};
-
-/**
- * Observer class that are attached to each observed
- * object. Once attached, the observer converts target
- * object's property keys into getter/setters that
- * collect dependencies and dispatches updates.
- */
-class Observer {
-  
-  
-   // number of vms that has this object as root $data
-
-  constructor (value) {
-    this.value = value;
-    this.dep = new Dep();
-    this.vmCount = 0;
-    def(value, '__ob__', this);
-    if (Array.isArray(value)) {
-      const augment = hasProto
-        ? protoAugment
-        : copyAugment;
-      augment(value, arrayMethods, arrayKeys);
-      this.observeArray(value);
-    } else {
-      this.walk(value);
-    }
-  }
-
-  /**
-   * Walk through each property and convert them into
-   * getter/setters. This method should only be called when
-   * value type is Object.
-   */
-  walk (obj) {
-    const keys = Object.keys(obj);
-    for (let i = 0; i < keys.length; i++) {
-      defineReactive(obj, keys[i], obj[keys[i]]);
-    }
-  }
-
-  /**
-   * Observe a list of Array items.
-   */
-  observeArray (items) {
-    for (let i = 0, l = items.length; i < l; i++) {
-      observe(items[i]);
-    }
-  }
-}
-
-// helpers
-
-/**
- * Augment an target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src, keys) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment an target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (let i = 0, l = keys.length; i < l; i++) {
-    const key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  let ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    observerState.shouldConvert &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  const dep = new Dep();
-
-  const property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  const getter = property && property.get;
-  const setter = property && property.set;
-
-  let childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      const value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      const value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if ("development" !== 'production' && customSetter) {
-        customSetter();
-      }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  const ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
-  }
-  defineReactive(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  const ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    "development" !== 'production' && warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (let e, i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-const strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-{
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        `option "${key}" can only be used during instance ` +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) return to
-  let key, toVal, fromVal;
-  const keys = Object.keys(from);
-  for (let i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this) : parentVal
-      )
-    }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      const instanceData = typeof childVal === 'function'
-        ? childVal.call(vm)
-        : childVal;
-      const defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
-      }
-    }
-  }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      "development" !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(hook => {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  const res = Object.create(parentVal || null);
-  if (childVal) {
-    "development" !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) parentVal = undefined;
-  if (childVal === nativeWatch) childVal = undefined;
-  /* istanbul ignore if */
-  if (!childVal) return Object.create(parentVal || null)
-  {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) return childVal
-  const ret = {};
-  extend(ret, parentVal);
-  for (const key in childVal) {
-    let parent = ret[key];
-    const child = childVal[key];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) return childVal
-  const ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) extend(ret, childVal);
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-const defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (const key in options.components) {
-    const lower = key.toLowerCase();
-    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
-      warn(
-        'Do not use built-in or reserved HTML elements as component ' +
-        'id: ' + key
-      );
-    }
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  const props = options.props;
-  if (!props) return
-  const res = {};
-  let i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (const key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else {
-    warn(
-      `Invalid value for option "props": expected an Array or an Object, ` +
-      `but got ${toRawType(props)}.`,
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  const inject = options.inject;
-  const normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (let i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (const key in inject) {
-      const val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else if ("development" !== 'production' && inject) {
-    warn(
-      `Invalid value for option "inject": expected an Array or an Object, ` +
-      `but got ${toRawType(inject)}.`,
-      vm
-    );
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  const dirs = options.directives;
-  if (dirs) {
-    for (const key in dirs) {
-      const def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      `Invalid value for option "${name}": expected an Object, ` +
-      `but got ${toRawType(value)}.`,
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  const extendsFrom = child.extends;
-  if (extendsFrom) {
-    parent = mergeOptions(parent, extendsFrom, vm);
-  }
-  if (child.mixins) {
-    for (let i = 0, l = child.mixins.length; i < l; i++) {
-      parent = mergeOptions(parent, child.mixins[i], vm);
-    }
-  }
-  const options = {};
-  let key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField (key) {
-    const strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  const assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) return assets[id]
-  const camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) return assets[camelizedId]
-  const PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) return assets[PascalCaseId]
-  // fallback to prototype chain
-  const res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if ("development" !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  const prop = propOptions[key];
-  const absent = !hasOwn(propsData, key);
-  let value = propsData[key];
-  // handle boolean props
-  if (isType(Boolean, prop.type)) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
-      value = true;
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    const prevShouldConvert = observerState.shouldConvert;
-    observerState.shouldConvert = true;
-    observe(value);
-    observerState.shouldConvert = prevShouldConvert;
-  }
-  {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  const def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if ("development" !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  let type = prop.type;
-  let valid = !type || type === true;
-  const expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (let i = 0; i < type.length && !valid; i++) {
-      const assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-  if (!valid) {
-    warn(
-      `Invalid prop: type check failed for prop "${name}".` +
-      ` Expected ${expectedTypes.map(capitalize).join(', ')}` +
-      `, got ${toRawType(value)}.`,
-      vm
-    );
-    return
-  }
-  const validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
-  }
-}
-
-const simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType (value, type) {
-  let valid;
-  const expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    const t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid,
-    expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  const match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isType (type, fn) {
-  if (!Array.isArray(fn)) {
-    return getType(fn) === getType(type)
-  }
-  for (let i = 0, len = fn.length; i < len; i++) {
-    if (getType(fn[i]) === getType(type)) {
-      return true
-    }
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    let cur = vm;
-    while ((cur = cur.$parent)) {
-      const hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (let i = 0; i < hooks.length; i++) {
-          try {
-            const capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) return
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  {
-    warn(`Error in ${info}: "${err.toString()}"`, vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-/* globals MessageChannel */
-
-const callbacks = [];
-let pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  const copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (let i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both micro and macro tasks.
-// In < 2.4 we used micro tasks everywhere, but there are some scenarios where
-// micro tasks have too high a priority and fires in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using macro tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use micro task by default, but expose a way to force macro task when
-// needed (e.g. in event handlers attached by v-on).
-let microTimerFunc;
-let macroTimerFunc;
-let useMacroTask = false;
-
-// Determine (macro) Task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = () => {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  const channel = new MessageChannel();
-  const port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = () => {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = () => {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine MicroTask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  const p = Promise.resolve();
-  microTimerFunc = () => {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) setTimeout(noop);
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a Task instead of a MicroTask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    const res = fn.apply(null, arguments);
-    useMacroTask = false;
-    return res
-  })
-}
-
-function nextTick (cb, ctx) {
-  let _resolve;
-  callbacks.push(() => {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(resolve => {
-      _resolve = resolve;
-    })
-  }
-}
-
-/*  */
-
-let mark;
-let measure;
-
-{
-  const perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = tag => perf.mark(tag);
-    measure = (name, startTag, endTag) => {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-let initProxy;
-
-{
-  const allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
-
-  const warnNonPresent = (target, key) => {
-    warn(
-      `Property or method "${key}" is not defined on the instance but ` +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
-
-  const hasProxy =
-    typeof Proxy !== 'undefined' &&
-    Proxy.toString().match(/native code/);
-
-  if (hasProxy) {
-    const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(`Avoid overwriting built-in modifier in config.keyCodes: .${key}`);
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
-      }
-    });
-  }
-
-  const hasHandler = {
-    has (target, key) {
-      const has = key in target;
-      const isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
-      if (!has && !isAllowed) {
-        warnNonPresent(target, key);
-      }
-      return has || !isAllowed
-    }
-  };
-
-  const getHandler = {
-    get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        warnNonPresent(target, key);
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      const options = vm.$options;
-      const handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-const seenObjects = new _Set();
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  let i, keys;
-  const isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val)) {
-    return
-  }
-  if (val.__ob__) {
-    const depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) _traverse(val[i], seen);
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) _traverse(val[keys[i]], seen);
-  }
-}
-
-/*  */
-
-const normalizeEvent = cached((name) => {
-  const passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  const once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  const capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name,
-    once: once$$1,
-    capture,
-    passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    const fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      const cloned = fns.slice();
-      for (let i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  vm
-) {
-  let name, cur, old, event;
-  for (name in on) {
-    cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      "development" !== 'production' && warn(
-        `Invalid handler for event "${event.name}": got ` + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      add(event.name, cur, event.once, event.capture, event.passive);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  let invoker;
-  const oldHook = def[hookKey];
-
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  const propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  const res = {};
-  const { attrs, props } = data;
-  if (isDef(attrs) || isDef(props)) {
-    for (const key in propOptions) {
-      const altKey = hyphenate(key);
-      {
-        const keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            `Prop "${keyInLowerCase}" is passed to component ` +
-            `${formatComponentName(tag || Ctor)}, but the declared prop name is` +
-            ` "${key}". ` +
-            `Note that HTML attributes are case-insensitive and camelCased ` +
-            `props need to use their kebab-case equivalents when using in-DOM ` +
-            `templates. You should probably use "${altKey}" instead of "${key}".`
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res
-}
-
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (let i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  const res = [];
-  let i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') continue
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`);
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = `__vlist${nestedIndex}_${i}__`;
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  const node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data, context, children, tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    const contexts = factory.contexts = [context];
-    let sync = true;
-
-    const forceRender = () => {
-      for (let i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-    };
-
-    const resolve = once((res) => {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender();
-      }
-    });
-
-    const reject = once(reason => {
-      "development" !== 'production' && warn(
-        `Failed to resolve async component: ${String(factory)}` +
-        (reason ? `\nReason: ${reason}` : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender();
-      }
-    });
-
-    const res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(() => {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender();
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(() => {
-            if (isUndef(factory.resolved)) {
-              reject(
-                `timeout (${res.timeout}ms)`
-              );
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
-  }
-}
-
-/*  */
-
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
-/*  */
-
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (let i = 0; i < children.length; i++) {
-      const c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  const listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-let target;
-
-function add (event, fn, once) {
-  if (once) {
-    target.$once(event, fn);
-  } else {
-    target.$on(event, fn);
-  }
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  const hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    const vm = this;
-    if (Array.isArray(event)) {
-      for (let i = 0, l = event.length; i < l; i++) {
-        this.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    const vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    const vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (let i = 0, l = event.length; i < l; i++) {
-        this.$off(event[i], fn);
-      }
-      return vm
-    }
-    // specific event
-    const cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    if (fn) {
-      // specific handler
-      let cb;
-      let i = cbs.length;
-      while (i--) {
-        cb = cbs[i];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i, 1);
-          break
-        }
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    const vm = this;
-    {
-      const lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          `Event "${lowerCaseEvent}" is emitted in component ` +
-          `${formatComponentName(vm)} but the handler is registered for "${event}". ` +
-          `Note that HTML attributes are case-insensitive and you cannot use ` +
-          `v-on to listen to camelCase events when using in-DOM templates. ` +
-          `You should probably use "${hyphenate(event)}" instead of "${event}".`
-        );
-      }
-    }
-    let cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      const args = toArray(arguments, 1);
-      for (let i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, `event handler for "${event}"`);
-        }
-      }
-    }
-    return vm
-  };
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  const slots = {};
-  if (!children) {
-    return slots
-  }
-  for (let i = 0, l = children.length; i < l; i++) {
-    const child = children[i];
-    const data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.functionalContext === context) &&
-      data && data.slot != null
-    ) {
-      const name = child.data.slot;
-      const slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (const name in slots) {
-    if (slots[name].every(isWhitespace)) {
-      delete slots[name];
-    }
-  }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (let i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res
-}
-
-/*  */
-
-let activeInstance = null;
-let isUpdatingChildComponent = false;
-
-function initLifecycle (vm) {
-  const options = vm.$options;
-
-  // locate first non-abstract parent
-  let parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    const vm = this;
-    if (vm._isMounted) {
-      callHook(vm, 'beforeUpdate');
-    }
-    const prevEl = vm.$el;
-    const prevVnode = vm._vnode;
-    const prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(
-        vm.$el, vnode, hydrating, false /* removeOnly */,
-        vm.$options._parentElm,
-        vm.$options._refElm
-      );
-      // no need for the ref nodes after initial patch
-      // this prevents keeping a detached DOM tree in memory (#5851)
-      vm.$options._parentElm = vm.$options._refElm = null;
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    activeInstance = prevActiveInstance;
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    const vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    const vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    const parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    let i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  let updateComponent;
-  /* istanbul ignore if */
-  if ("development" !== 'production' && config.performance && mark) {
-    updateComponent = () => {
-      const name = vm._name;
-      const id = vm._uid;
-      const startTag = `vue-perf-start:${id}`;
-      const endTag = `vue-perf-end:${id}`;
-
-      mark(startTag);
-      const vnode = vm._render();
-      mark(endTag);
-      measure(`vue ${name} render`, startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(`vue ${name} patch`, startTag, endTag);
-    };
-  } else {
-    updateComponent = () => {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  vm._watcher = new Watcher(vm, updateComponent, noop);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  const hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = (parentVnode.data && parentVnode.data.attrs) || emptyObject;
-  vm.$listeners = listeners || emptyObject;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    observerState.shouldConvert = false;
-    const props = vm._props;
-    const propKeys = vm.$options._propKeys || [];
-    for (let i = 0; i < propKeys.length; i++) {
-      const key = propKeys[i];
-      props[key] = validateProp(key, vm.$options.props, propsData, vm);
-    }
-    observerState.shouldConvert = true;
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  if (listeners) {
-    const oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
-  }
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) return true
-  }
-  return false
-}
-
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (let i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (let i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook (vm, hook) {
-  const handlers = vm.$options[hook];
-  if (handlers) {
-    for (let i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, `${hook} hook`);
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-}
-
-/*  */
-
-
-const MAX_UPDATE_COUNT = 100;
-
-const queue = [];
-const activatedChildren = [];
-let has = {};
-let circular = {};
-let waiting = false;
-let flushing = false;
-let index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  let watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort((a, b) => a.id - b.id);
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if ("development" !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? `in watcher with expression "${watcher.expression}"`
-              : `in a component render function.`
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  const activatedQueue = activatedChildren.slice();
-  const updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  let i = queue.length;
-  while (i--) {
-    const watcher = queue[i];
-    const vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (let i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  const id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      let i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-let uid$2 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-class Watcher {
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-
-  constructor (
-    vm,
-    expOrFn,
-    cb,
-    options
-  ) {
-    this.vm = vm;
-    vm._watchers.push(this);
-    // options
-    if (options) {
-      this.deep = !!options.deep;
-      this.user = !!options.user;
-      this.lazy = !!options.lazy;
-      this.sync = !!options.sync;
-    } else {
-      this.deep = this.user = this.lazy = this.sync = false;
-    }
-    this.cb = cb;
-    this.id = ++uid$2; // uid for batching
-    this.active = true;
-    this.dirty = this.lazy; // for lazy watchers
-    this.deps = [];
-    this.newDeps = [];
-    this.depIds = new _Set();
-    this.newDepIds = new _Set();
-    this.expression = expOrFn.toString();
-    // parse expression for getter
-    if (typeof expOrFn === 'function') {
-      this.getter = expOrFn;
-    } else {
-      this.getter = parsePath(expOrFn);
-      if (!this.getter) {
-        this.getter = function () {};
-        "development" !== 'production' && warn(
-          `Failed watching path: "${expOrFn}" ` +
-          'Watcher only accepts simple dot-delimited paths. ' +
-          'For full control, use a function instead.',
-          vm
-        );
-      }
-    }
-    this.value = this.lazy
-      ? undefined
-      : this.get();
-  }
-
-  /**
-   * Evaluate the getter, and re-collect dependencies.
-   */
-  get () {
-    pushTarget(this);
-    let value;
-    const vm = this.vm;
-    try {
-      value = this.getter.call(vm, vm);
-    } catch (e) {
-      if (this.user) {
-        handleError(e, vm, `getter for watcher "${this.expression}"`);
-      } else {
-        throw e
-      }
-    } finally {
-      // "touch" every property so they are all tracked as
-      // dependencies for deep watching
-      if (this.deep) {
-        traverse(value);
-      }
-      popTarget();
-      this.cleanupDeps();
-    }
-    return value
-  }
-
-  /**
-   * Add a dependency to this directive.
-   */
-  addDep (dep) {
-    const id = dep.id;
-    if (!this.newDepIds.has(id)) {
-      this.newDepIds.add(id);
-      this.newDeps.push(dep);
-      if (!this.depIds.has(id)) {
-        dep.addSub(this);
-      }
-    }
-  }
-
-  /**
-   * Clean up for dependency collection.
-   */
-  cleanupDeps () {
-    let i = this.deps.length;
-    while (i--) {
-      const dep = this.deps[i];
-      if (!this.newDepIds.has(dep.id)) {
-        dep.removeSub(this);
-      }
-    }
-    let tmp = this.depIds;
-    this.depIds = this.newDepIds;
-    this.newDepIds = tmp;
-    this.newDepIds.clear();
-    tmp = this.deps;
-    this.deps = this.newDeps;
-    this.newDeps = tmp;
-    this.newDeps.length = 0;
-  }
-
-  /**
-   * Subscriber interface.
-   * Will be called when a dependency changes.
-   */
-  update () {
-    /* istanbul ignore else */
-    if (this.lazy) {
-      this.dirty = true;
-    } else if (this.sync) {
-      this.run();
-    } else {
-      queueWatcher(this);
-    }
-  }
-
-  /**
-   * Scheduler job interface.
-   * Will be called by the scheduler.
-   */
-  run () {
-    if (this.active) {
-      const value = this.get();
-      if (
-        value !== this.value ||
-        // Deep watchers and watchers on Object/Arrays should fire even
-        // when the value is the same, because the value may
-        // have mutated.
-        isObject(value) ||
-        this.deep
-      ) {
-        // set new value
-        const oldValue = this.value;
-        this.value = value;
-        if (this.user) {
-          try {
-            this.cb.call(this.vm, value, oldValue);
-          } catch (e) {
-            handleError(e, this.vm, `callback for watcher "${this.expression}"`);
-          }
-        } else {
-          this.cb.call(this.vm, value, oldValue);
-        }
-      }
-    }
-  }
-
-  /**
-   * Evaluate the value of the watcher.
-   * This only gets called for lazy watchers.
-   */
-  evaluate () {
-    this.value = this.get();
-    this.dirty = false;
-  }
-
-  /**
-   * Depend on all deps collected by this watcher.
-   */
-  depend () {
-    let i = this.deps.length;
-    while (i--) {
-      this.deps[i].depend();
-    }
-  }
-
-  /**
-   * Remove self from all dependencies' subscriber list.
-   */
-  teardown () {
-    if (this.active) {
-      // remove self from vm's watcher list
-      // this is a somewhat expensive operation so we skip it
-      // if the vm is being destroyed.
-      if (!this.vm._isBeingDestroyed) {
-        remove(this.vm._watchers, this);
-      }
-      let i = this.deps.length;
-      while (i--) {
-        this.deps[i].removeSub(this);
-      }
-      this.active = false;
-    }
-  }
-}
-
-/*  */
-
-const sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  const opts = vm.$options;
-  if (opts.props) initProps(vm, opts.props);
-  if (opts.methods) initMethods(vm, opts.methods);
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) initComputed(vm, opts.computed);
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  const propsData = vm.$options.propsData || {};
-  const props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  const keys = vm.$options._propKeys = [];
-  const isRoot = !vm.$parent;
-  // root instance props should be converted
-  observerState.shouldConvert = isRoot;
-  for (const key in propsOptions) {
-    keys.push(key);
-    const value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      const hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          `"${hyphenatedKey}" is a reserved attribute and cannot be used as component prop.`,
-          vm
-        );
-      }
-      defineReactive(props, key, value, () => {
-        if (vm.$parent && !isUpdatingChildComponent) {
-          warn(
-            `Avoid mutating a prop directly since the value will be ` +
-            `overwritten whenever the parent component re-renders. ` +
-            `Instead, use a data or computed property based on the prop's ` +
-            `value. Prop being mutated: "${key}"`,
-            vm
-          );
-        }
-      });
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, `_props`, key);
-    }
-  }
-  observerState.shouldConvert = true;
-}
-
-function initData (vm) {
-  let data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    "development" !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  const keys = Object.keys(data);
-  const props = vm.$options.props;
-  const methods = vm.$options.methods;
-  let i = keys.length;
-  while (i--) {
-    const key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          `Method "${key}" has already been defined as a data property.`,
-          vm
-        );
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      "development" !== 'production' && warn(
-        `The data property "${key}" is already declared as a prop. ` +
-        `Use prop default value instead.`,
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, `_data`, key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, `data()`);
-    return {}
-  }
-}
-
-const computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  const watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  const isSSR = isServerRendering();
-
-  for (const key in computed) {
-    const userDef = computed[key];
-    const getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if ("development" !== 'production' && getter == null) {
-      warn(
-        `Getter is missing for computed property "${key}".`,
-        vm
-      );
-    }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(`The computed property "${key}" is already defined in data.`, vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(`The computed property "${key}" is already defined as a prop.`, vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  const shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : userDef;
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : userDef.get
-      : noop;
-    sharedPropertyDefinition.set = userDef.set
-      ? userDef.set
-      : noop;
-  }
-  if ("development" !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        `Computed property "${key}" was assigned to but it has no setter.`,
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter (key) {
-  return function computedGetter () {
-    const watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
-  }
-}
-
-function initMethods (vm, methods) {
-  const props = vm.$options.props;
-  for (const key in methods) {
-    {
-      if (methods[key] == null) {
-        warn(
-          `Method "${key}" has an undefined value in the component definition. ` +
-          `Did you reference the function correctly?`,
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          `Method "${key}" has already been defined as a prop.`,
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          `Method "${key}" conflicts with an existing Vue instance method. ` +
-          `Avoid defining component methods that start with _ or $.`
-        );
-      }
-    }
-    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch (vm, watch) {
-  for (const key in watch) {
-    const handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (let i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  keyOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(keyOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  const dataDef = {};
-  dataDef.get = function () { return this._data };
-  const propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function (newData) {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn(`$props is readonly.`, this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    const vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    const watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      cb.call(vm, watcher.value);
-    }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
-
-/*  */
-
-function initProvide (vm) {
-  const provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
-
-function initInjections (vm) {
-  const result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    observerState.shouldConvert = false;
-    Object.keys(result).forEach(key => {
-      /* istanbul ignore else */
-      {
-        defineReactive(vm, key, result[key], () => {
-          warn(
-            `Avoid mutating an injected value directly since the changes will be ` +
-            `overwritten whenever the provided component re-renders. ` +
-            `injection being mutated: "${key}"`,
-            vm
-          );
-        });
-      }
-    });
-    observerState.shouldConvert = true;
-  }
-}
-
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    const result = Object.create(null);
-    const keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(key => {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
-        : Object.keys(inject);
-
-    for (let i = 0; i < keys.length; i++) {
-      const key = keys[i];
-      const provideKey = inject[key].from;
-      let source = vm;
-      while (source) {
-        if (source._provided && provideKey in source._provided) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          const provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(`Injection "${key}" not found`, vm);
-        }
-      }
-    }
-    return result
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  let ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  const scopedSlotFn = this.$scopedSlots[name];
-  let nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if ("development" !== 'production' && !isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    const slotNodes = this.$slots[name];
-    // warn duplicate slot usage
-    if (slotNodes) {
-      if ("development" !== 'production' && slotNodes._rendered) {
-        warn(
-          `Duplicate presence of slot "${name}" found in the same render tree ` +
-          `- this will likely cause render errors.`,
-          this
-        );
-      }
-      slotNodes._rendered = true;
-    }
-    nodes = slotNodes || fallback;
-  }
-
-  const target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInAlias,
-  eventKeyName
-) {
-  const keyCodes = config.keyCodes[key] || builtInAlias;
-  if (keyCodes) {
-    if (Array.isArray(keyCodes)) {
-      return keyCodes.indexOf(eventKeyCode) === -1
-    } else {
-      return keyCodes !== eventKeyCode
-    }
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      "development" !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      let hash;
-      for (const key in value) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          const type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        if (!(key in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            const on = data.on || (data.on = {});
-            on[`update:${key}`] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor,
-  isOnce
-) {
-  // render fns generated by compiler < 2.5.4 does not provide v-once
-  // information to runtime so be conservative
-  const isOldVersion = arguments.length < 3;
-  // if a static tree is generated by v-once, it is cached on the instance;
-  // otherwise it is purely static and can be cached on the shared options
-  // across all instances.
-  const renderFns = this.$options.staticRenderFns;
-  const cached = isOldVersion || isOnce
-    ? (this._staticTrees || (this._staticTrees = []))
-    : (renderFns.cached || (renderFns.cached = []));
-  let tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree by doing a shallow clone.
-  if (tree && !isInFor) {
-    return Array.isArray(tree)
-      ? cloneVNodes(tree)
-      : cloneVNode(tree)
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = renderFns[index].call(this._renderProxy, null, this);
-  markStatic(tree, `__static__${index}`, false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (let i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], `${key}_${i}`, isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      "development" !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      const on = data.on = data.on ? extend({}, data.on) : {};
-      for (const key in value) {
-        const existing = on[key];
-        const ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  const options = Ctor.options;
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = () => resolveSlots(children, parent);
-
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  const contextVm = Object.create(parent);
-  const isCompiled = isTrue(options._compiled);
-  const needNormalization = !isCompiled;
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = (a, b, c, d) => {
-      const vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode) {
-        vnode.functionalScopeId = options._scopeId;
-        vnode.functionalContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  const options = Ctor.options;
-  const props = {};
-  const propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (const key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) mergeProps(props, data.attrs);
-    if (isDef(data.props)) mergeProps(props, data.props);
-  }
-
-  const renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  const vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    vnode.functionalContext = contextVm;
-    vnode.functionalOptions = options;
-    if (data.slot) {
-      (vnode.data || (vnode.data = {})).slot = data.slot;
-    }
-  }
-
-  return vnode
-}
-
-function mergeProps (to, from) {
-  for (const key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-// hooks to be invoked on component VNodes during patch
-const componentVNodeHooks = {
-  init (
-    vnode,
-    hydrating,
-    parentElm,
-    refElm
-  ) {
-    if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
-      const child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance,
-        parentElm,
-        refElm
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    } else if (vnode.data.keepAlive) {
-      // kept-alive components, treat as a patch
-      const mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    }
-  },
-
-  prepatch (oldVnode, vnode) {
-    const options = vnode.componentOptions;
-    const child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert (vnode) {
-    const { context, componentInstance } = vnode;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy (vnode) {
-    const { componentInstance } = vnode;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-const hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  const baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(`Invalid Component definition: ${String(Ctor)}`, context);
-    }
-    return
-  }
-
-  // async component
-  let asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  const propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  const listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    const slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // merge component management hooks onto the placeholder node
-  mergeHooks(data);
-
-  // return a placeholder vnode
-  const name = Ctor.options.name || tag;
-  const vnode = new VNode(
-    `vue-component-${Ctor.cid}${name ? `-${name}` : ''}`,
-    data, undefined, undefined, undefined, context,
-    { Ctor, propsData, listeners, tag, children },
-    asyncFactory
-  );
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-  parentElm,
-  refElm
-) {
-  const vnodeComponentOptions = vnode.componentOptions;
-  const options = {
-    _isComponent: true,
-    parent,
-    propsData: vnodeComponentOptions.propsData,
-    _componentTag: vnodeComponentOptions.tag,
-    _parentVnode: vnode,
-    _parentListeners: vnodeComponentOptions.listeners,
-    _renderChildren: vnodeComponentOptions.children,
-    _parentElm: parentElm || null,
-    _refElm: refElm || null
-  };
-  // check inline-template render functions
-  const inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnodeComponentOptions.Ctor(options)
-}
-
-function mergeHooks (data) {
-  if (!data.hook) {
-    data.hook = {};
-  }
-  for (let i = 0; i < hooksToMerge.length; i++) {
-    const key = hooksToMerge[i];
-    const fromParent = data.hook[key];
-    const ours = componentVNodeHooks[key];
-    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
-  }
-}
-
-function mergeHook$1 (one, two) {
-  return function (a, b, c, d) {
-    one(a, b, c, d);
-    two(a, b, c, d);
-  }
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  const prop = (options.model && options.model.prop) || 'value';
-  const event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
-  const on = data.on || (data.on = {});
-  if (isDef(on[event])) {
-    on[event] = [data.model.callback].concat(on[event]);
-  } else {
-    on[event] = data.model.callback;
-  }
-}
-
-/*  */
-
-const SIMPLE_NORMALIZE = 1;
-const ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    "development" !== 'production' && warn(
-      `Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if ("development" !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    warn(
-      'Avoid using non-primitive value as key, ' +
-      'use string/number value instead.',
-      context
-    );
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  let vnode, ns;
-  if (typeof tag === 'string') {
-    let Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if (isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (isDef(vnode)) {
-    if (ns) applyNS(vnode, ns);
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (let i = 0, l = vnode.children.length; i < l; i++) {
-      const child = vnode.children[i];
-      if (isDef(child.tag) && (isUndef(child.ns) || isTrue(force))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  const options = vm.$options;
-  const parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  const renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = (a, b, c, d) => createElement(vm, a, b, c, d, false);
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = (a, b, c, d) => createElement(vm, a, b, c, d, true);
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  const parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  {
-    defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
-      !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm);
-    }, true);
-    defineReactive(vm, '$listeners', options._parentListeners || emptyObject, () => {
-      !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm);
-    }, true);
-  }
-}
-
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
-
-  Vue.prototype._render = function () {
-    const vm = this;
-    const { render, _parentVnode } = vm.$options;
-
-    if (vm._isMounted) {
-      // if the parent didn't update, the slot nodes will be the ones from
-      // last render. They need to be cloned to ensure "freshness" for this render.
-      for (const key in vm.$slots) {
-        const slot = vm.$slots[key];
-        // _rendered is a flag added by renderSlot, but may not be present
-        // if the slot is passed from manually written render functions
-        if (slot._rendered || (slot[0] && slot[0].elm)) {
-          vm.$slots[key] = cloneVNodes(slot, true /* deep */);
-        }
-      }
-    }
-
-    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    let vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, `render`);
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      {
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, `renderError`);
-            vnode = vm._vnode;
-          }
-        } else {
-          vnode = vm._vnode;
-        }
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if ("development" !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-let uid$1 = 0;
-
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    const vm = this;
-    // a uid
-    vm._uid = uid$1++;
-
-    let startTag, endTag;
-    /* istanbul ignore if */
-    if ("development" !== 'production' && config.performance && mark) {
-      startTag = `vue-perf-start:${vm._uid}`;
-      endTag = `vue-perf-end:${vm._uid}`;
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
-    }
-    /* istanbul ignore else */
-    {
-      initProxy(vm);
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if ("development" !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(`vue ${vm._name} init`, startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  const opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  opts.parent = options.parent;
-  opts.propsData = options.propsData;
-  opts._parentVnode = options._parentVnode;
-  opts._parentListeners = options._parentListeners;
-  opts._renderChildren = options._renderChildren;
-  opts._componentTag = options._componentTag;
-  opts._parentElm = options._parentElm;
-  opts._refElm = options._refElm;
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  let options = Ctor.options;
-  if (Ctor.super) {
-    const superOptions = resolveConstructorOptions(Ctor.super);
-    const cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      const modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  let modified;
-  const latest = Ctor.options;
-  const extended = Ctor.extendOptions;
-  const sealed = Ctor.sealedOptions;
-  for (const key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) modified = {};
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified
-}
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    const res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (let i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
-function Vue$3 (options) {
-  if ("development" !== 'production' &&
-    !(this instanceof Vue$3)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue$3);
-stateMixin(Vue$3);
-eventsMixin(Vue$3);
-lifecycleMixin(Vue$3);
-renderMixin(Vue$3);
-
-/*  */
-
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    const installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
-
-    // additional parameters
-    const args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
-
-/*  */
-
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
-
-/*  */
-
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  let cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    const Super = this;
-    const SuperId = Super.cid;
-    const cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
-
-    const name = extendOptions.name || Super.options.name;
-    {
-      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-        warn(
-          'Invalid component name: "' + name + '". Component names ' +
-          'can only contain alphanumeric characters and the hyphen, ' +
-          'and must start with a letter.'
-        );
-      }
-    }
-
-    const Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
-
-function initProps$1 (Comp) {
-  const props = Comp.options.props;
-  for (const key in props) {
-    proxy(Comp.prototype, `_props`, key);
-  }
-}
-
-function initComputed$1 (Comp) {
-  const computed = Comp.options.computed;
-  for (const key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(type => {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        {
-          if (type === 'component' && config.isReservedTag(id)) {
-            warn(
-              'Do not use built-in or reserved HTML elements as component ' +
-              'id: ' + id
-            );
-          }
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
-    };
-  });
-}
-
-/*  */
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-function pruneCache (keepAliveInstance, filter) {
-  const { cache, keys, _vnode } = keepAliveInstance;
-  for (const key in cache) {
-    const cachedNode = cache[key];
-    if (cachedNode) {
-      const name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  const cached$$1 = cache[key];
-  if (cached$$1 && cached$$1 !== current) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-const patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-
-  created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-
-  destroyed () {
-    for (const key in this.cache) {
-      pruneCacheEntry(this.cache, key, this.keys);
-    }
-  },
-
-  watch: {
-    include (val) {
-      pruneCache(this, name => matches(val, name));
-    },
-    exclude (val) {
-      pruneCache(this, name => !matches(val, name));
-    }
-  },
-
-  render () {
-    const slot = this.$slots.default;
-    const vnode = getFirstComponentChild(slot);
-    const componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      const name = getComponentName(componentOptions);
-      const { include, exclude } = this;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
-
-      const { cache, keys } = this;
-      const key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? `::${componentOptions.tag}` : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-};
-
-var builtInComponents = {
-  KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI (Vue) {
-  // config
-  const configDef = {};
-  configDef.get = () => config;
-  {
-    configDef.set = () => {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn,
-    extend,
-    mergeOptions,
-    defineReactive
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(type => {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue$3);
-
-Object.defineProperty(Vue$3.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue$3.prototype, '$ssrContext', {
-  get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
-  }
-});
-
-Vue$3.version = '2.5.8';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-const isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-const acceptValue = makeMap('input,textarea,option,select,progress');
-const mustUseProp = (tag, type, attr) => {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-const isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-const xlinkNS = 'http://www.w3.org/1999/xlink';
-
-const isXlink = (name) => {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
-
-const getXlinkProp = (name) => {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
-
-const isFalsyAttrValue = (val) => {
-  return val == null || val === false
-};
-
-/*  */
-
-function genClassForVnode (vnode) {
-  let data = vnode.data;
-  let parentNode = vnode;
-  let childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class)
-}
-
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
-
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  let res = '';
-  let stringified;
-  for (let i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) res += ' ';
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  let res = '';
-  for (const key in value) {
-    if (value[key]) {
-      if (res) res += ' ';
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-const namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-const isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-const isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-const isPreTag = (tag) => tag === 'pre';
-
-const isReservedTag = (tag) => {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-const unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
-  }
-  if (isReservedTag(tag)) {
-    return false
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  const el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-  }
-}
-
-const isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    const selected = document.querySelector(el);
-    if (!selected) {
-      "development" !== 'production' && warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
-  }
-}
-
-/*  */
-
-function createElement$1 (tagName, vnode) {
-  const elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setAttribute (node, key, val) {
-  node.setAttribute(key, val);
-}
-
-
-var nodeOps = Object.freeze({
-	createElement: createElement$1,
-	createElementNS: createElementNS,
-	createTextNode: createTextNode,
-	createComment: createComment,
-	insertBefore: insertBefore,
-	removeChild: removeChild,
-	appendChild: appendChild,
-	parentNode: parentNode,
-	nextSibling: nextSibling,
-	tagName: tagName,
-	setTextContent: setTextContent,
-	setAttribute: setAttribute
-});
-
-/*  */
-
-var ref = {
-  create (_, vnode) {
-    registerRef(vnode);
-  },
-  update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy (vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef (vnode, isRemoval) {
-  const key = vnode.data.ref;
-  if (!key) return
-
-  const vm = vnode.context;
-  const ref = vnode.componentInstance || vnode.elm;
-  const refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-const emptyNode = new VNode('', {}, []);
-
-const hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
-
-function sameInputType (a, b) {
-  if (a.tag !== 'input') return true
-  let i;
-  const typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  const typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
-
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  let i, key;
-  const map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) map[key] = i;
-  }
-  return map
-}
-
-function createPatchFunction (backend) {
-  let i, j;
-  const cbs = {};
-
-  const { modules, nodeOps } = backend;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
-
-  function createRmCb (childElm, listeners) {
-    function remove () {
-      if (--remove.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove.listeners = listeners;
-    return remove
-  }
-
-  function removeNode (el) {
-    const parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(ignore => {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
-
-  let creatingElmInVPre = 0;
-  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
-
-    const data = vnode.data;
-    const children = vnode.children;
-    const tag = vnode.tag;
-    if (isDef(tag)) {
-      {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if ("development" !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    let i = vnode.data;
-    if (isDef(i)) {
-      const isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */, parentElm, refElm);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
-      }
-    }
-  }
-
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    let i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    let innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (ref$$1.parentNode === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      for (let i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
-    }
-  }
-
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag)
-  }
-
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (let i = 0; i < cbs.create.length; ++i) {
-      cbs.create[i](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) i.create(emptyNode, vnode);
-      if (isDef(i.insert)) insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    let i;
-    if (isDef(i = vnode.functionalScopeId)) {
-      nodeOps.setAttribute(vnode.elm, i, '');
-    } else {
-      let ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setAttribute(vnode.elm, i, '');
-        }
-        ancestor = ancestor.parent;
-      }
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.functionalContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setAttribute(vnode.elm, i, '');
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
-    }
-  }
-
-  function invokeDestroyHook (vnode) {
-    let i, j;
-    const data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) i(vnode);
-      for (i = 0; i < cbs.destroy.length; ++i) cbs.destroy[i](vnode);
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      const ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      let i;
-      const listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    let oldStartIdx = 0;
-    let newStartIdx = 0;
-    let oldEndIdx = oldCh.length - 1;
-    let oldStartVnode = oldCh[0];
-    let oldEndVnode = oldCh[oldEndIdx];
-    let newEndIdx = newCh.length - 1;
-    let newStartVnode = newCh[0];
-    let newEndVnode = newCh[newEndIdx];
-    let oldKeyToIdx, idxInOld, vnodeToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    const canMove = !removeOnly;
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          /* istanbul ignore if */
-          if ("development" !== 'production' && !vnodeToMove) {
-            warn(
-              'It seems there are duplicate keys that is causing an update error. ' +
-              'Make sure each v-for item has a unique key.'
-            );
-          }
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (let i = start; i < end; i++) {
-      const c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) return i
-    }
-  }
-
-  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
-    if (oldVnode === vnode) {
-      return
-    }
-
-    const elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
-
-    let i;
-    const data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    const oldCh = oldVnode.children;
-    const ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) cbs.update[i](oldVnode, vnode);
-      if (isDef(i = data.hook) && isDef(i = i.update)) i(oldVnode, vnode);
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly);
-      } else if (isDef(ch)) {
-        if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '');
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) i(oldVnode, vnode);
-    }
-  }
-
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (let i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  let hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  const isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    let i;
-    const { tag, data, children } = vnode;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) i(vnode, true /* hydrating */);
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            let childrenMatch = true;
-            let childNode = elm.firstChild;
-            for (let i = 0; i < children.length; i++) {
-              if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if ("development" !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
-            }
-          }
-        }
-      }
-      if (isDef(data)) {
-        let fullInvoke = false;
-        for (const key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true
-  }
-
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
-    }
-  }
-
-  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) invokeDestroyHook(oldVnode);
-      return
-    }
-
-    let isInitialPatch = false;
-    const insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
-    } else {
-      const isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        const oldElm = oldVnode.elm;
-        const parentElm = nodeOps.parentNode(oldElm);
-
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
-
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          let ancestor = vnode.parent;
-          const patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (let i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (let i = 0; i < cbs.create.length; ++i) {
-                cbs.create[i](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              const insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (let i = 1; i < insert.fns.length; i++) {
-                  insert.fns[i]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-            ancestor = ancestor.parent;
-          }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
-  }
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update (oldVnode, vnode) {
-  const isCreate = oldVnode === emptyNode;
-  const isDestroy = vnode === emptyNode;
-  const oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  const newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  const dirsWithInsert = [];
-  const dirsWithPostpatch = [];
-
-  let key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    const callInsert = () => {
-      for (let i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', () => {
-      for (let i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-const emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  const res = Object.create(null);
-  if (!dirs) {
-    return res
-  }
-  let i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  return res
-}
-
-function getRawDirName (dir) {
-  return dir.rawName || `${dir.name}.${Object.keys(dir.modifiers || {}).join('.')}`
-}
-
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  const fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, `directive ${dir.name} ${hook} hook`);
-    }
-  }
-}
-
-var baseModules = [
-  ref,
-  directives
-];
-
-/*  */
-
-function updateAttrs (oldVnode, vnode) {
-  const opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  let key, cur, old;
-  const elm = vnode.elm;
-  const oldAttrs = oldVnode.data.attrs || {};
-  let attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr (el, key, value) {
-  if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      el.setAttribute(key, value);
-    }
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  const el = vnode.elm;
-  const data = vnode.data;
-  const oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  let cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  const transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-const validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters (exp) {
-  let inSingle = false;
-  let inDouble = false;
-  let inTemplateString = false;
-  let inRegex = false;
-  let curly = 0;
-  let square = 0;
-  let paren = 0;
-  let lastFilterIndex = 0;
-  let c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) inSingle = false;
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) inDouble = false;
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) inTemplateString = false;
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) inRegex = false;
-    } else if (
-      c === 0x7C && // pipe
-      exp.charCodeAt(i + 1) !== 0x7C &&
-      exp.charCodeAt(i - 1) !== 0x7C &&
-      !curly && !square && !paren
-    ) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
-      }
-    } else {
-      switch (c) {
-        case 0x22: inDouble = true; break         // "
-        case 0x27: inSingle = true; break         // '
-        case 0x60: inTemplateString = true; break // `
-        case 0x28: paren++; break                 // (
-        case 0x29: paren--; break                 // )
-        case 0x5B: square++; break                // [
-        case 0x5D: square--; break                // ]
-        case 0x7B: curly++; break                 // {
-        case 0x7D: curly--; break                 // }
-      }
-      if (c === 0x2f) { // /
-        let j = i - 1;
-        let p;
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') break
-        }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
-        }
-      }
-    }
-  }
-
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
-  }
-
-  function pushFilter () {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
-  }
-
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
-    }
-  }
-
-  return expression
-}
-
-function wrapFilter (exp, filter) {
-  const i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return `_f("${filter}")(${exp})`
-  } else {
-    const name = filter.slice(0, i);
-    const args = filter.slice(i + 1);
-    return `_f("${name}")(${exp},${args}`
-  }
-}
-
-/*  */
-
-function baseWarn (msg) {
-  console.error(`[Vue compiler]: ${msg}`);
-}
-
-function pluckModuleFunction (
-  modules,
-  key
-) {
-  return modules
-    ? modules.map(m => m[key]).filter(_ => _)
-    : []
-}
-
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name, value });
-}
-
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name, value });
-}
-
-function addDirective (
-  el,
-  name,
-  rawName,
-  value,
-  arg,
-  modifiers
-) {
-  (el.directives || (el.directives = [])).push({ name, rawName, value, arg, modifiers });
-}
-
-function addHandler (
-  el,
-  name,
-  value,
-  modifiers,
-  important,
-  warn
-) {
-  modifiers = modifiers || emptyObject;
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (
-    "development" !== 'production' && warn &&
-    modifiers.prevent && modifiers.passive
-  ) {
-    warn(
-      'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
-    );
-  }
-
-  // check capture modifier
-  if (modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
-  }
-  /* istanbul ignore if */
-  if (modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
-  }
-
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
-  let events;
-  if (modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
-  }
-
-  const newHandler = { value };
-  if (modifiers !== emptyObject) {
-    newHandler.modifiers = modifiers;
-  }
-
-  const handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-}
-
-function getBindingAttr (
-  el,
-  name,
-  getStatic
-) {
-  const dynamicValue =
-    getAndRemoveAttr(el, ':' + name) ||
-    getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue)
-  } else if (getStatic !== false) {
-    const staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue)
-    }
-  }
-}
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-function getAndRemoveAttr (
-  el,
-  name,
-  removeFromMap
-) {
-  let val;
-  if ((val = el.attrsMap[name]) != null) {
-    const list = el.attrsList;
-    for (let i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break
-      }
-    }
-  }
-  if (removeFromMap) {
-    delete el.attrsMap[name];
-  }
-  return val
-}
-
-/*  */
-
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  const { number, trim } = modifiers || {};
-
-  const baseValueExpression = '$$v';
-  let valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      `(typeof ${baseValueExpression} === 'string'` +
-        `? ${baseValueExpression}.trim()` +
-        `: ${baseValueExpression})`;
-  }
-  if (number) {
-    valueExpression = `_n(${valueExpression})`;
-  }
-  const assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: `(${value})`,
-    expression: `"${value}"`,
-    callback: `function (${baseValueExpression}) {${assignment}}`
-  };
-}
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  const res = parseModel(value);
-  if (res.key === null) {
-    return `${value}=${assignment}`
-  } else {
-    return `$set(${res.exp}, ${res.key}, ${assignment})`
-  }
-}
-
-/**
- * Parse a v-model expression into a base path and a final key segment.
- * Handles both dot-path and possible square brackets.
- *
- * Possible cases:
- *
- * - test
- * - test[key]
- * - test[test1[key]]
- * - test["a"][key]
- * - xxx.test[a[a].test1[key]]
- * - test.xxx.a["asa"][test1[key]]
- *
- */
-
-let len;
-let str;
-let chr;
-let index$1;
-let expressionPos;
-let expressionEndPos;
-
-
-
-function parseModel (val) {
-  len = val.length;
-
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    index$1 = val.lastIndexOf('.');
-    if (index$1 > -1) {
-      return {
-        exp: val.slice(0, index$1),
-        key: '"' + val.slice(index$1 + 1) + '"'
-      }
-    } else {
-      return {
-        exp: val,
-        key: null
-      }
-    }
-  }
-
-  str = val;
-  index$1 = expressionPos = expressionEndPos = 0;
-
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
-
-  return {
-    exp: val.slice(0, expressionPos),
-    key: val.slice(expressionPos + 1, expressionEndPos)
-  }
-}
-
-function next () {
-  return str.charCodeAt(++index$1)
-}
-
-function eof () {
-  return index$1 >= len
-}
-
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  let inBracket = 1;
-  expressionPos = index$1;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) inBracket++;
-    if (chr === 0x5D) inBracket--;
-    if (inBracket === 0) {
-      expressionEndPos = index$1;
-      break
-    }
-  }
-}
-
-function parseString (chr) {
-  const stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
-  }
-}
-
-/*  */
-
-let warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-const RANGE_TOKEN = '__r';
-const CHECKBOX_RADIO_TOKEN = '__c';
-
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  const value = dir.value;
-  const modifiers = dir.modifiers;
-  const tag = el.tag;
-  const type = el.attrsMap.type;
-
-  {
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        `<${el.tag} v-model="${value}" type="file">:\n` +
-        `File inputs are read only. Use a v-on:change listener instead.`
-      );
-    }
-  }
-
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else {
-    warn$1(
-      `<${el.tag} v-model="${value}">: ` +
-      `v-model is not supported on this element type. ` +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
-
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  const number = modifiers && modifiers.number;
-  const valueBinding = getBindingAttr(el, 'value') || 'null';
-  const trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  const falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    `Array.isArray(${value})` +
-      `?_i(${value},${valueBinding})>-1` + (
-        trueValueBinding === 'true'
-          ? `:(${value})`
-          : `:_q(${value},${trueValueBinding})`
-      )
-  );
-  addHandler(el, 'change',
-    `var $$a=${value},` +
-        '$$el=$event.target,' +
-        `$$c=$$el.checked?(${trueValueBinding}):(${falseValueBinding});` +
-    'if(Array.isArray($$a)){' +
-      `var $$v=${number ? '_n(' + valueBinding + ')' : valueBinding},` +
-          '$$i=_i($$a,$$v);' +
-      `if($$el.checked){$$i<0&&(${value}=$$a.concat([$$v]))}` +
-      `else{$$i>-1&&(${value}=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}` +
-    `}else{${genAssignmentCode(value, '$$c')}}`,
-    null, true
-  );
-}
-
-function genRadioModel (
-    el,
-    value,
-    modifiers
-) {
-  const number = modifiers && modifiers.number;
-  let valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? `_n(${valueBinding})` : valueBinding;
-  addProp(el, 'checked', `_q(${value},${valueBinding})`);
-  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-    el,
-    value,
-    modifiers
-) {
-  const number = modifiers && modifiers.number;
-  const selectedVal = `Array.prototype.filter` +
-    `.call($event.target.options,function(o){return o.selected})` +
-    `.map(function(o){var val = "_value" in o ? o._value : o.value;` +
-    `return ${number ? '_n(val)' : 'val'}})`;
-
-  const assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  let code = `var $$selectedVal = ${selectedVal};`;
-  code = `${code} ${genAssignmentCode(value, assignment)}`;
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  const type = el.attrsMap.type;
-
-  // warn if v-bind:value conflicts with v-model
-  {
-    const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    if (value) {
-      const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        `${binding}="${value}" conflicts with v-model on the same element ` +
-        'because the latter already expands to a value binding internally'
-      );
-    }
-  }
-
-  const { lazy, number, trim } = modifiers || {};
-  const needCompositionGuard = !lazy && type !== 'range';
-  const event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  let valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = `$event.target.value.trim()`;
-  }
-  if (number) {
-    valueExpression = `_n(${valueExpression})`;
-  }
-
-  let code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = `if($event.target.composing)return;${code}`;
-  }
-
-  addProp(el, 'value', `(${value})`);
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    const event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-let target$1;
-
-function createOnceHandler (handler, event, capture) {
-  const _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    const res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  once$$1,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  if (once$$1) handler = createOnceHandler(handler, event, capture);
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture, passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  const on = vnode.data.on || {};
-  const oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  let key, cur;
-  const elm = vnode.elm;
-  const oldProps = oldVnode.data.domProps || {};
-  let props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) vnode.children.length = 0;
-      if (cur === oldProps[key]) continue
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      const strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isDirty(elm, checkVal) ||
-    isInputChanged(elm, checkVal)
-  ))
-}
-
-function isDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  let notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isInputChanged (elm, newVal) {
-  const value = elm.value;
-  const modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers) && modifiers.number) {
-    return toNumber(value) !== toNumber(newVal)
-  }
-  if (isDef(modifiers) && modifiers.trim) {
-    return value.trim() !== newVal.trim()
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-const parseStyleText = cached(function (cssText) {
-  const res = {};
-  const listDelimiter = /;(?![^(]*\))/g;
-  const propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  const style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  const res = {};
-  let styleData;
-
-  if (checkChild) {
-    let childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  let parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res
-}
-
-/*  */
-
-const cssVarRE = /^--/;
-const importantRE = /\s*!important$/;
-const setProp = (el, name, val) => {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    const normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (let i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-const vendorNames = ['Webkit', 'Moz', 'ms'];
-
-let emptyStyle;
-const normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  const capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (let i = 0; i < vendorNames.length; i++) {
-    const name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
-
-function updateStyle (oldVnode, vnode) {
-  const data = vnode.data;
-  const oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
-  }
-
-  let cur, name;
-  const el = vnode.elm;
-  const oldStaticStyle = oldData.staticStyle;
-  const oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  const oldStyle = oldStaticStyle || oldStyleBinding;
-
-  const style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
-
-  const newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(c => el.classList.add(c));
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    const cur = ` ${el.getAttribute('class') || ''} `;
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(/\s+/).forEach(c => el.classList.remove(c));
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    let cur = ` ${el.getAttribute('class') || ''} `;
-    const tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition (def) {
-  if (!def) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def === 'object') {
-    const res = {};
-    if (def.css !== false) {
-      extend(res, autoCssTransition(def.name || 'v'));
-    }
-    extend(res, def);
-    return res
-  } else if (typeof def === 'string') {
-    return autoCssTransition(def)
-  }
-}
-
-const autoCssTransition = cached(name => {
-  return {
-    enterClass: `${name}-enter`,
-    enterToClass: `${name}-enter-to`,
-    enterActiveClass: `${name}-enter-active`,
-    leaveClass: `${name}-leave`,
-    leaveToClass: `${name}-leave-to`,
-    leaveActiveClass: `${name}-leave-active`
-  }
-});
-
-const hasTransition = inBrowser && !isIE9;
-const TRANSITION = 'transition';
-const ANIMATION = 'animation';
-
-// Transition property/event sniffing
-let transitionProp = 'transition';
-let transitionEndEvent = 'transitionend';
-let animationProp = 'animation';
-let animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-const raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ fn => fn();
-
-function nextFrame (fn) {
-  raf(() => {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  const transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  const { type, timeout, propCount } = getTransitionInfo(el, expectedType);
-  if (!type) return cb()
-  const event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  let ended = 0;
-  const end = () => {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  const onEnd = e => {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(() => {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-const transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  const styles = window.getComputedStyle(el);
-  const transitionDelays = styles[transitionProp + 'Delay'].split(', ');
-  const transitionDurations = styles[transitionProp + 'Duration'].split(', ');
-  const transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  const animationDelays = styles[animationProp + 'Delay'].split(', ');
-  const animationDurations = styles[animationProp + 'Duration'].split(', ');
-  const animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  let type;
-  let timeout = 0;
-  let propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  const hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type,
-    timeout,
-    propCount,
-    hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map((d, i) => {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-function toMs (s) {
-  return Number(s.slice(0, -1)) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  const el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  const data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  const {
-    css,
-    type,
-    enterClass,
-    enterToClass,
-    enterActiveClass,
-    appearClass,
-    appearToClass,
-    appearActiveClass,
-    beforeEnter,
-    enter,
-    afterEnter,
-    enterCancelled,
-    beforeAppear,
-    appear,
-    afterAppear,
-    appearCancelled,
-    duration
-  } = data;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  let context = activeInstance;
-  let transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  const isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  const startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  const activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  const toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  const beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  const enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  const afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  const enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  const explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if ("development" !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  const expectsCSS = css !== false && !isIE9;
-  const userWantsControl = getHookArgumentsLength(enterHook);
-
-  const cb = el._enterCb = once(() => {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', () => {
-      const parent = el.parentNode;
-      const pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(() => {
-      addTransitionClass(el, toClass);
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled && !userWantsControl) {
-        if (isValidDuration(explicitEnterDuration)) {
-          setTimeout(cb, explicitEnterDuration);
-        } else {
-          whenTransitionEnds(el, type, cb);
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave (vnode, rm) {
-  const el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  const data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  const {
-    css,
-    type,
-    leaveClass,
-    leaveToClass,
-    leaveActiveClass,
-    beforeLeave,
-    leave,
-    afterLeave,
-    leaveCancelled,
-    delayLeave,
-    duration
-  } = data;
-
-  const expectsCSS = css !== false && !isIE9;
-  const userWantsControl = getHookArgumentsLength(leave);
-
-  const explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
-
-  if ("development" !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  const cb = el._leaveCb = once(() => {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(() => {
-        addTransitionClass(el, leaveToClass);
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled && !userWantsControl) {
-          if (isValidDuration(explicitLeaveDuration)) {
-            setTimeout(cb, explicitLeaveDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      `<transition> explicit ${name} duration is not a valid number - ` +
-      `got ${JSON.stringify(val)}.`,
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      `<transition> explicit ${name} duration is NaN - ` +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  const invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
-
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-const modules = platformModules.concat(baseModules);
-
-const patch = createPatchFunction({ nodeOps, modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', () => {
-    const el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-const directive = {
-  inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', () => {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        if (!isAndroid) {
-          el.addEventListener('compositionstart', onCompositionStart);
-          el.addEventListener('compositionend', onCompositionEnd);
-        }
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-
-  componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      const prevOptions = el._vOptions;
-      const curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some((o, i) => !looseEqual(o, prevOptions[i]))) {
-        // trigger change event if
-        // no matching option found for at least one value
-        const needReset = el.multiple
-          ? binding.value.some(v => hasNoMatchingOption(v, curOptions))
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(() => {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected (el, binding, vm) {
-  const value = binding.value;
-  const isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    "development" !== 'production' && warn(
-      `<select multiple v-model="${binding.expression}"> ` +
-      `expects an Array value for its binding, but got ${
-        Object.prototype.toString.call(value).slice(8, -1)
-      }`,
-      vm
-    );
-    return
-  }
-  let selected, option;
-  for (let i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(o => !looseEqual(o, value))
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) return
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  const e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind (el, { value }, vnode) {
-    vnode = locateNode(vnode);
-    const transition$$1 = vnode.data && vnode.data.transition;
-    const originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, () => {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update (el, { value, oldValue }, vnode) {
-    /* istanbul ignore if */
-    if (value === oldValue) return
-    vnode = locateNode(vnode);
-    const transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, () => {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, () => {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: directive,
-  show
-};
-
-/*  */
-
-// Provides transition support for a single element/component.
-// supports transition mode (out-in / in-out)
-
-const transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  const compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
-
-function extractTransitionData (comp) {
-  const data = {};
-  const options = comp.$options;
-  // props
-  for (const key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  const listeners = options._parentListeners;
-  for (const key in listeners) {
-    data[camelize(key)] = listeners[key];
-  }
-  return data
-}
-
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
-
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
-  }
-}
-
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render (h) {
-    let children = this.$slots.default;
-    if (!children) {
-      return
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter((c) => c.tag || isAsyncPlaceholder(c));
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
-
-    // warn multiple elements
-    if ("development" !== 'production' && children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
-
-    const mode = this.mode;
-
-    // warn invalid mode
-    if ("development" !== 'production' &&
-      mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
-
-    const rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    const child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    const id = `__transition-${this._uid}-`;
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
-
-    const data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    const oldRawChild = this._vnode;
-    const oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(d => d.name === 'show')) {
-      child.data.show = true;
-    }
-
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      const oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', () => {
-          this._leaving = false;
-          this.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        let delayedLeave;
-        const performLeave = () => { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', leave => { delayedLeave = leave; });
-      }
-    }
-
-    return rawChild
-  }
-};
-
-/*  */
-
-// Provides transition support for list items.
-// supports move transitions using the FLIP technique.
-
-// Because the vdom's children update algorithm is "unstable" - i.e.
-// it doesn't guarantee the relative positioning of removed elements,
-// we force transition-group to update its children into two passes:
-// in the first pass, we remove all nodes that need to be removed,
-// triggering their leaving transition; in the second pass, we insert/move
-// into the final desired state. This way in the second pass removed
-// nodes will remain where they should be.
-
-const props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props,
-
-  render (h) {
-    const tag = this.tag || this.$vnode.data.tag || 'span';
-    const map = Object.create(null);
-    const prevChildren = this.prevChildren = this.children;
-    const rawChildren = this.$slots.default || [];
-    const children = this.children = [];
-    const transitionData = extractTransitionData(this);
-
-    for (let i = 0; i < rawChildren.length; i++) {
-      const c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else {
-          const opts = c.componentOptions;
-          const name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(`<transition-group> children must be keyed: <${name}>`);
-        }
-      }
-    }
-
-    if (prevChildren) {
-      const kept = [];
-      const removed = [];
-      for (let i = 0; i < prevChildren.length; i++) {
-        const c = prevChildren[i];
-        c.data.transition = transitionData;
-        c.data.pos = c.elm.getBoundingClientRect();
-        if (map[c.key]) {
-          kept.push(c);
-        } else {
-          removed.push(c);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children)
-  },
-
-  beforeUpdate () {
-    // force removing pass
-    this.__patch__(
-      this._vnode,
-      this.kept,
-      false, // hydrating
-      true // removeOnly (!important, avoids unnecessary moves)
-    );
-    this._vnode = this.kept;
-  },
-
-  updated () {
-    const children = this.prevChildren;
-    const moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach((c) => {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      const clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach((cls) => { removeClass(clone, cls); });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      const info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
-    }
-  }
-};
-
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  const oldPos = c.data.pos;
-  const newPos = c.data.newPos;
-  const dx = oldPos.left - newPos.left;
-  const dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    const s = c.elm.style;
-    s.transform = s.WebkitTransform = `translate(${dx}px,${dy}px)`;
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition,
-  TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue$3.config.mustUseProp = mustUseProp;
-Vue$3.config.isReservedTag = isReservedTag;
-Vue$3.config.isReservedAttr = isReservedAttr;
-Vue$3.config.getTagNamespace = getTagNamespace;
-Vue$3.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue$3.options.directives, platformDirectives);
-extend(Vue$3.options.components, platformComponents);
-
-// install platform patch function
-Vue$3.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue$3.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-Vue$3.nextTick(() => {
-  if (config.devtools) {
-    if (devtools) {
-      devtools.emit('init', Vue$3);
-    } else if ("development" !== 'production' && isChrome) {
-      console[console.info ? 'info' : 'log'](
-        'Download the Vue Devtools extension for a better development experience:\n' +
-        'https://github.com/vuejs/vue-devtools'
-      );
-    }
-  }
-  if ("development" !== 'production' &&
-    config.productionTip !== false &&
-    inBrowser && typeof console !== 'undefined'
-  ) {
-    console[console.info ? 'info' : 'log'](
-      `You are running Vue in development mode.\n` +
-      `Make sure to turn on production mode when deploying for production.\n` +
-      `See more tips at https://vuejs.org/guide/deployment.html`
-    );
-  }
-}, 0);
-
-/*  */
-
-const defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
-const regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-const buildRegex = cached(delimiters => {
-  const open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  const close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-});
-
-function parseText (
-  text,
-  delimiters
-) {
-  const tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return
-  }
-  const tokens = [];
-  let lastIndex = tagRE.lastIndex = 0;
-  let match, index;
-  while ((match = tagRE.exec(text))) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
-    }
-    // tag token
-    const exp = parseFilters(match[1].trim());
-    tokens.push(`_s(${exp})`);
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    tokens.push(JSON.stringify(text.slice(lastIndex)));
-  }
-  return tokens.join('+')
-}
-
-/*  */
-
-function transformNode (el, options) {
-  const warn = options.warn || baseWarn;
-  const staticClass = getAndRemoveAttr(el, 'class');
-  if ("development" !== 'production' && staticClass) {
-    const expression = parseText(staticClass, options.delimiters);
-    if (expression) {
-      warn(
-        `class="${staticClass}": ` +
-        'Interpolation inside attributes has been removed. ' +
-        'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
-      );
-    }
-  }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  const classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
-
-function genData (el) {
-  let data = '';
-  if (el.staticClass) {
-    data += `staticClass:${el.staticClass},`;
-  }
-  if (el.classBinding) {
-    data += `class:${el.classBinding},`;
-  }
-  return data
-}
-
-var klass$1 = {
-  staticKeys: ['staticClass'],
-  transformNode,
-  genData
-};
-
-/*  */
-
-function transformNode$1 (el, options) {
-  const warn = options.warn || baseWarn;
-  const staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
-    {
-      const expression = parseText(staticStyle, options.delimiters);
-      if (expression) {
-        warn(
-          `style="${staticStyle}": ` +
-          'Interpolation inside attributes has been removed. ' +
-          'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
-        );
-      }
-    }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-  }
-
-  const styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
-  }
-}
-
-function genData$1 (el) {
-  let data = '';
-  if (el.staticStyle) {
-    data += `staticStyle:${el.staticStyle},`;
-  }
-  if (el.styleBinding) {
-    data += `style:(${el.styleBinding}),`;
-  }
-  return data
-}
-
-var style$1 = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-};
-
-/*  */
-
-let decoder;
-
-var he = {
-  decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
-  }
-};
-
-/*  */
-
-const isUnaryTag = makeMap(
-  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-  'link,meta,param,source,track,wbr'
-);
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-const canBeLeftOpenTag = makeMap(
-  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-);
-
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-const isNonPhrasingTag = makeMap(
-  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-  'title,tr,track'
-);
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-/*!
- * HTML Parser By John Resig (ejohn.org)
- * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
- * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
- */
-
-// Regular Expressions for parsing tags and attributes
-const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-const ncname = '[a-zA-Z_][\\w\\-\\.]*';
-const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
-const startTagOpen = new RegExp(`^<${qnameCapture}`);
-const startTagClose = /^\s*(\/?)>/;
-const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`);
-const doctype = /^<!DOCTYPE [^>]+>/i;
-const comment = /^<!--/;
-const conditionalComment = /^<!\[/;
-
-let IS_REGEX_CAPTURING_BROKEN = false;
-'x'.replace(/x(.)?/g, function (m, g) {
-  IS_REGEX_CAPTURING_BROKEN = g === '';
-});
-
-// Special Elements (can contain anything)
-const isPlainTextElement = makeMap('script,style,textarea', true);
-const reCache = {};
-
-const decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n',
-  '&#9;': '\t'
-};
-const encodedAttr = /&(?:lt|gt|quot|amp);/g;
-const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
-
-// #5992
-const isIgnoreNewlineTag = makeMap('pre,textarea', true);
-const shouldIgnoreFirstNewline = (tag, html) => tag && isIgnoreNewlineTag(tag) && html[0] === '\n';
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  const re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, match => decodingMap[match])
-}
-
-function parseHTML (html, options) {
-  const stack = [];
-  const expectHTML = options.expectHTML;
-  const isUnaryTag$$1 = options.isUnaryTag || no;
-  const canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  let index = 0;
-  let last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      let textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          const commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
-            }
-            advance(commentEnd + 3);
-            continue
-          }
-        }
-
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          const conditionalEnd = html.indexOf(']>');
-
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
-            continue
-          }
-        }
-
-        // Doctype:
-        const doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue
-        }
-
-        // End tag:
-        const endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          const curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue
-        }
-
-        // Start tag:
-        const startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(lastTag, html)) {
-            advance(1);
-          }
-          continue
-        }
-      }
-
-      let text, rest, next;
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (
-          !endTag.test(rest) &&
-          !startTagOpen.test(rest) &&
-          !comment.test(rest) &&
-          !conditionalComment.test(rest)
-        ) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) break
-          textEnd += next;
-          rest = html.slice(textEnd);
-        }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
-      }
-
-      if (textEnd < 0) {
-        text = html;
-        html = '';
-      }
-
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      let endTagLength = 0;
-      const stackedTag = lastTag.toLowerCase();
-      const reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      const rest = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text
-            .replace(/<!--([\s\S]*?)-->/g, '$1')
-            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return ''
-      });
-      index += html.length - rest.length;
-      html = rest;
-      parseEndTag(stackedTag, index - endTagLength, index);
-    }
-
-    if (html === last) {
-      options.chars && options.chars(html);
-      if ("development" !== 'production' && !stack.length && options.warn) {
-        options.warn(`Mal-formatted tag at end of template: "${html}"`);
-      }
-      break
-    }
-  }
-
-  // Clean up any remaining tags
-  parseEndTag();
-
-  function advance (n) {
-    index += n;
-    html = html.substring(n);
-  }
-
-  function parseStartTag () {
-    const start = html.match(startTagOpen);
-    if (start) {
-      const match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      let end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match
-      }
-    }
-  }
-
-  function handleStartTag (match) {
-    const tagName = match.tagName;
-    const unarySlash = match.unarySlash;
-
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
-      }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
-      }
-    }
-
-    const unary = isUnaryTag$$1(tagName) || !!unarySlash;
-
-    const l = match.attrs.length;
-    const attrs = new Array(l);
-    for (let i = 0; i < l; i++) {
-      const args = match.attrs[i];
-      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
-      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
-        if (args[3] === '') { delete args[3]; }
-        if (args[4] === '') { delete args[4]; }
-        if (args[5] === '') { delete args[5]; }
-      }
-      const value = args[3] || args[4] || args[5] || '';
-      const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-        ? options.shouldDecodeNewlinesForHref
-        : options.shouldDecodeNewlines;
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, shouldDecodeNewlines)
-      };
-    }
-
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
-
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
-    }
-  }
-
-  function parseEndTag (tagName, start, end) {
-    let pos, lowerCasedTagName;
-    if (start == null) start = index;
-    if (end == null) end = index;
-
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-    }
-
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break
-        }
-      }
-    } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
-    }
-
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (let i = stack.length - 1; i >= pos; i--) {
-        if ("development" !== 'production' &&
-          (i > pos || !tagName) &&
-          options.warn
-        ) {
-          options.warn(
-            `tag <${stack[i].tag}> has no matching end tag.`
-          );
-        }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
-        }
-      }
-
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
-      }
-      if (options.end) {
-        options.end(tagName, start, end);
-      }
-    }
-  }
-}
-
-/*  */
-
-const onRE = /^@|^v-on:/;
-const dirRE = /^v-|^@|^:/;
-const forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
-const forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
-
-const argRE = /:(.*)$/;
-const bindRE = /^:|^v-bind:/;
-const modifierRE = /\.[^.]+/g;
-
-const decodeHTMLCached = cached(he.decode);
-
-// configurable state
-let warn$2;
-let delimiters;
-let transforms;
-let preTransforms;
-let postTransforms;
-let platformIsPreTag;
-let platformMustUseProp;
-let platformGetTagNamespace;
-
-
-
-function createASTElement (
-  tag,
-  attrs,
-  parent
-) {
-  return {
-    type: 1,
-    tag,
-    attrsList: attrs,
-    attrsMap: makeAttrsMap(attrs),
-    parent,
-    children: []
-  }
-}
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$2 = options.warn || baseWarn;
-
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
-
-  const stack = [];
-  const preserveWhitespace = options.preserveWhitespace !== false;
-  let root;
-  let currentParent;
-  let inVPre = false;
-  let inPre = false;
-  let warned = false;
-
-  function warnOnce (msg) {
-    if (!warned) {
-      warned = true;
-      warn$2(msg);
-    }
-  }
-
-  function endPre (element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-  }
-
-  parseHTML(template, {
-    warn: warn$2,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-    shouldKeepComment: options.comments,
-    start (tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
-
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
-
-      let element = createASTElement(tag, attrs, currentParent);
-      if (ns) {
-        element.ns = ns;
-      }
-
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        "development" !== 'production' && warn$2(
-          'Templates should only be responsible for mapping the state to the ' +
-          'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          `<${tag}>` + ', as they will not be parsed.'
-        );
-      }
-
-      // apply pre-transforms
-      for (let i = 0; i < preTransforms.length; i++) {
-        element = preTransforms[i](element, options) || element;
-      }
-
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
-      }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else if (!element.processed) {
-        // structural directives
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
-
-      function checkRootConstraints (el) {
-        {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              `Cannot use <${el.tag}> as component root element because it may ` +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
-      }
-
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else {
-          warnOnce(
-            `Component template should contain exactly one root element. ` +
-            `If you are using v-if on multiple elements, ` +
-            `use v-else-if to chain them instead.`
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          const name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
-      }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
-      } else {
-        endPre(element);
-      }
-      // apply post-transforms
-      for (let i = 0; i < postTransforms.length; i++) {
-        postTransforms[i](element, options);
-      }
-    },
-
-    end () {
-      // remove trailing whitespace
-      const element = stack[stack.length - 1];
-      const lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      endPre(element);
-    },
-
-    chars (text) {
-      if (!currentParent) {
-        {
-          if (text === template) {
-            warnOnce(
-              'Component template requires a root element, rather than just text.'
-            );
-          } else if ((text = text.trim())) {
-            warnOnce(
-              `text "${text}" outside root element will be ignored.`
-            );
-          }
-        }
-        return
-      }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE &&
-        currentParent.tag === 'textarea' &&
-        currentParent.attrsMap.placeholder === text
-      ) {
-        return
-      }
-      const children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        let expression;
-        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression,
-            text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text
-          });
-        }
-      }
-    },
-    comment (text) {
-      currentParent.children.push({
-        type: 3,
-        text,
-        isComment: true
-      });
-    }
-  });
-  return root
-}
-
-function processPre (el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs (el) {
-  const l = el.attrsList.length;
-  if (l) {
-    const attrs = el.attrs = new Array(l);
-    for (let i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
-    }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
-  }
-}
-
-function processElement (element, options) {
-  processKey(element);
-
-  // determine whether this is a plain element after
-  // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
-
-  processRef(element);
-  processSlot(element);
-  processComponent(element);
-  for (let i = 0; i < transforms.length; i++) {
-    element = transforms[i](element, options) || element;
-  }
-  processAttrs(element);
-}
-
-function processKey (el) {
-  const exp = getBindingAttr(el, 'key');
-  if (exp) {
-    if ("development" !== 'production' && el.tag === 'template') {
-      warn$2(`<template> cannot be keyed. Place the key on real elements instead.`);
-    }
-    el.key = exp;
-  }
-}
-
-function processRef (el) {
-  const ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
-  }
-}
-
-function processFor (el) {
-  let exp;
-  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    const inMatch = exp.match(forAliasRE);
-    if (!inMatch) {
-      "development" !== 'production' && warn$2(
-        `Invalid v-for expression: ${exp}`
-      );
-      return
-    }
-    el.for = inMatch[2].trim();
-    const alias = inMatch[1].trim();
-    const iteratorMatch = alias.match(forIteratorRE);
-    if (iteratorMatch) {
-      el.alias = iteratorMatch[1].trim();
-      el.iterator1 = iteratorMatch[2].trim();
-      if (iteratorMatch[3]) {
-        el.iterator2 = iteratorMatch[3].trim();
-      }
-    } else {
-      el.alias = alias;
-    }
-  }
-}
-
-function processIf (el) {
-  const exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
-    }
-    const elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
-    }
-  }
-}
-
-function processIfConditions (el, parent) {
-  const prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else {
-    warn$2(
-      `v-${el.elseif ? ('else-if="' + el.elseif + '"') : 'else'} ` +
-      `used on element <${el.tag}> without corresponding v-if.`
-    );
-  }
-}
-
-function findPrevElement (children) {
-  let i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i]
-    } else {
-      if ("development" !== 'production' && children[i].text !== ' ') {
-        warn$2(
-          `text "${children[i].text.trim()}" between v-if and v-else(-if) ` +
-          `will be ignored.`
-        );
-      }
-      children.pop();
-    }
-  }
-}
-
-function addIfCondition (el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
-  }
-  el.ifConditions.push(condition);
-}
-
-function processOnce (el) {
-  const once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
-  }
-}
-
-function processSlot (el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if ("development" !== 'production' && el.key) {
-      warn$2(
-        `\`key\` does not work on <slot> because slots are abstract outlets ` +
-        `and can possibly expand into multiple elements. ` +
-        `Use the key on a wrapping element instead.`
-      );
-    }
-  } else {
-    let slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if ("development" !== 'production' && slotScope) {
-        warn$2(
-          `the "scope" attribute for scoped slots have been deprecated and ` +
-          `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
-          `can also be used on plain elements in addition to <template> to ` +
-          `denote scoped slots.`,
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if ("development" !== 'production' && el.attrsMap['v-for']) {
-        warn$2(
-          `Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
-          `(v-for takes higher priority). Use a wrapper <template> for the ` +
-          `scoped slot to make it clearer.`,
-          true
-        );
-      }
-      el.slotScope = slotScope;
-    }
-    const slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
-    }
-  }
-}
-
-function processComponent (el) {
-  let binding;
-  if ((binding = getBindingAttr(el, 'is'))) {
-    el.component = binding;
-  }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
-  }
-}
-
-function processAttrs (el) {
-  const list = el.attrsList;
-  let i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
-      }
-      if (bindRE.test(name)) { // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') name = 'innerHTML';
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(
-              el,
-              `update:${camelize(name)}`,
-              genAssignmentCode(value, `$event`)
-            );
-          }
-        }
-        if (isProp || (
-          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-        )) {
-          addProp(el, name, value);
-        } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) { // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
-      } else { // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        const argMatch = name.match(argRE);
-        const arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
-        }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if ("development" !== 'production' && name === 'model') {
-          checkForAliasModel(el, value);
-        }
-      }
-    } else {
-      // literal attribute
-      {
-        const expression = parseText(value, delimiters);
-        if (expression) {
-          warn$2(
-            `${name}="${value}": ` +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
-          );
-        }
-      }
-      addAttr(el, name, JSON.stringify(value));
-      // #6887 firefox doesn't update muted state if set via attribute
-      // even immediately after element creation
-      if (!el.component &&
-          name === 'muted' &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
-      }
-    }
-  }
-}
-
-function checkInFor (el) {
-  let parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true
-    }
-    parent = parent.parent;
-  }
-  return false
-}
-
-function parseModifiers (name) {
-  const match = name.match(modifierRE);
-  if (match) {
-    const ret = {};
-    match.forEach(m => { ret[m.slice(1)] = true; });
-    return ret
-  }
-}
-
-function makeAttrsMap (attrs) {
-  const map = {};
-  for (let i = 0, l = attrs.length; i < l; i++) {
-    if (
-      "development" !== 'production' &&
-      map[attrs[i].name] && !isIE && !isEdge
-    ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
-    }
-    map[attrs[i].name] = attrs[i].value;
-  }
-  return map
-}
-
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
-
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
-}
-
-const ieNSBug = /^xmlns:NS\d+/;
-const ieNSPrefix = /^NS\d+:/;
-
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  const res = [];
-  for (let i = 0; i < attrs.length; i++) {
-    const attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
-  }
-  return res
-}
-
-function checkForAliasModel (el, value) {
-  let _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2(
-        `<${el.tag} v-model="${value}">: ` +
-        `You are binding v-model directly to a v-for iteration alias. ` +
-        `This will not be able to modify the v-for source array because ` +
-        `writing to the alias is like modifying a function local variable. ` +
-        `Consider using an array of objects and use v-model on an object property instead.`
-      );
-    }
-    _el = _el.parent;
-  }
-}
-
-/*  */
-
-/**
- * Expand input[v-model] with dyanmic type bindings into v-if-else chains
- * Turn this:
- *   <input v-model="data[type]" :type="type">
- * into this:
- *   <input v-if="type === 'checkbox'" type="checkbox" v-model="data[type]">
- *   <input v-else-if="type === 'radio'" type="radio" v-model="data[type]">
- *   <input v-else :type="type" v-model="data[type]">
- */
-
-function preTransformNode (el, options) {
-  if (el.tag === 'input') {
-    const map = el.attrsMap;
-    if (map['v-model'] && (map['v-bind:type'] || map[':type'])) {
-      const typeBinding = getBindingAttr(el, 'type');
-      const ifCondition = getAndRemoveAttr(el, 'v-if', true);
-      const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``;
-      const hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-      const elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-      // 1. checkbox
-      const branch0 = cloneASTElement(el);
-      // process for on the main node
-      processFor(branch0);
-      addRawAttr(branch0, 'type', 'checkbox');
-      processElement(branch0, options);
-      branch0.processed = true; // prevent it from double-processed
-      branch0.if = `(${typeBinding})==='checkbox'` + ifConditionExtra;
-      addIfCondition(branch0, {
-        exp: branch0.if,
-        block: branch0
-      });
-      // 2. add radio else-if condition
-      const branch1 = cloneASTElement(el);
-      getAndRemoveAttr(branch1, 'v-for', true);
-      addRawAttr(branch1, 'type', 'radio');
-      processElement(branch1, options);
-      addIfCondition(branch0, {
-        exp: `(${typeBinding})==='radio'` + ifConditionExtra,
-        block: branch1
-      });
-      // 3. other
-      const branch2 = cloneASTElement(el);
-      getAndRemoveAttr(branch2, 'v-for', true);
-      addRawAttr(branch2, ':type', typeBinding);
-      processElement(branch2, options);
-      addIfCondition(branch0, {
-        exp: ifCondition,
-        block: branch2
-      });
-
-      if (hasElse) {
-        branch0.else = true;
-      } else if (elseIfCondition) {
-        branch0.elseif = elseIfCondition;
-      }
-
-      return branch0
-    }
-  }
-}
-
-function cloneASTElement (el) {
-  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-}
-
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name, value });
-}
-
-var model$2 = {
-  preTransformNode
-};
-
-var modules$1 = [
-  klass$1,
-  style$1,
-  model$2
-];
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', `_s(${dir.value})`);
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', `_s(${dir.value})`);
-  }
-}
-
-var directives$1 = {
-  model,
-  text,
-  html
-};
-
-/*  */
-
-const baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag,
-  isUnaryTag,
-  mustUseProp,
-  canBeLeftOpenTag,
-  isReservedTag,
-  getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-let isStaticKey;
-let isPlatformReservedTag;
-
-const genStaticKeysCached = cached(genStaticKeys$1);
-
-/**
- * Goal of the optimizer: walk the generated template AST tree
- * and detect sub-trees that are purely static, i.e. parts of
- * the DOM that never needs to change.
- *
- * Once we detect these sub-trees, we can:
- *
- * 1. Hoist them into constants, so that we no longer need to
- *    create fresh nodes for them on each re-render;
- * 2. Completely skip them in the patching process.
- */
-function optimize (root, options) {
-  if (!root) return
-  isStaticKey = genStaticKeysCached(options.staticKeys || '');
-  isPlatformReservedTag = options.isReservedTag || no;
-  // first pass: mark all non-static nodes.
-  markStatic$1(root);
-  // second pass: mark static roots.
-  markStaticRoots(root, false);
-}
-
-function genStaticKeys$1 (keys) {
-  return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
-    (keys ? ',' + keys : '')
-  )
-}
-
-function markStatic$1 (node) {
-  node.static = isStatic(node);
-  if (node.type === 1) {
-    // do not make component slot content static. this avoids
-    // 1. components not able to mutate slot nodes
-    // 2. static slot content fails for hot-reloading
-    if (
-      !isPlatformReservedTag(node.tag) &&
-      node.tag !== 'slot' &&
-      node.attrsMap['inline-template'] == null
-    ) {
-      return
-    }
-    for (let i = 0, l = node.children.length; i < l; i++) {
-      const child = node.children[i];
-      markStatic$1(child);
-      if (!child.static) {
-        node.static = false;
-      }
-    }
-    if (node.ifConditions) {
-      for (let i = 1, l = node.ifConditions.length; i < l; i++) {
-        const block = node.ifConditions[i].block;
-        markStatic$1(block);
-        if (!block.static) {
-          node.static = false;
-        }
-      }
-    }
-  }
-}
-
-function markStaticRoots (node, isInFor) {
-  if (node.type === 1) {
-    if (node.static || node.once) {
-      node.staticInFor = isInFor;
-    }
-    // For a node to qualify as a static root, it should have children that
-    // are not just static text. Otherwise the cost of hoisting out will
-    // outweigh the benefits and it's better off to just always render it fresh.
-    if (node.static && node.children.length && !(
-      node.children.length === 1 &&
-      node.children[0].type === 3
-    )) {
-      node.staticRoot = true;
-      return
-    } else {
-      node.staticRoot = false;
-    }
-    if (node.children) {
-      for (let i = 0, l = node.children.length; i < l; i++) {
-        markStaticRoots(node.children[i], isInFor || !!node.for);
-      }
-    }
-    if (node.ifConditions) {
-      for (let i = 1, l = node.ifConditions.length; i < l; i++) {
-        markStaticRoots(node.ifConditions[i].block, isInFor);
-      }
-    }
-  }
-}
-
-function isStatic (node) {
-  if (node.type === 2) { // expression
-    return false
-  }
-  if (node.type === 3) { // text
-    return true
-  }
-  return !!(node.pre || (
-    !node.hasBindings && // no dynamic bindings
-    !node.if && !node.for && // not v-if or v-for or v-else
-    !isBuiltInTag(node.tag) && // not a built-in
-    isPlatformReservedTag(node.tag) && // not a component
-    !isDirectChildOfTemplateFor(node) &&
-    Object.keys(node).every(isStaticKey)
-  ))
-}
-
-function isDirectChildOfTemplateFor (node) {
-  while (node.parent) {
-    node = node.parent;
-    if (node.tag !== 'template') {
-      return false
-    }
-    if (node.for) {
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-const fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-const simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;
-
-// keyCode aliases
-const keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-const genGuard = condition => `if(${condition})return null;`;
-
-const modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard(`$event.target !== $event.currentTarget`),
-  ctrl: genGuard(`!$event.ctrlKey`),
-  shift: genGuard(`!$event.shiftKey`),
-  alt: genGuard(`!$event.altKey`),
-  meta: genGuard(`!$event.metaKey`),
-  left: genGuard(`'button' in $event && $event.button !== 0`),
-  middle: genGuard(`'button' in $event && $event.button !== 1`),
-  right: genGuard(`'button' in $event && $event.button !== 2`)
-};
-
-function genHandlers (
-  events,
-  isNative,
-  warn
-) {
-  let res = isNative ? 'nativeOn:{' : 'on:{';
-  for (const name in events) {
-    res += `"${name}":${genHandler(name, events[name])},`;
-  }
-  return res.slice(0, -1) + '}'
-}
-
-function genHandler (
-  name,
-  handler
-) {
-  if (!handler) {
-    return 'function(){}'
-  }
-
-  if (Array.isArray(handler)) {
-    return `[${handler.map(handler => genHandler(name, handler)).join(',')}]`
-  }
-
-  const isMethodPath = simplePathRE.test(handler.value);
-  const isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    return isMethodPath || isFunctionExpression
-      ? handler.value
-      : `function($event){${handler.value}}` // inline statement
-  } else {
-    let code = '';
-    let genModifierCode = '';
-    const keys = [];
-    for (const key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else if (key === 'exact') {
-        const modifiers = (handler.modifiers);
-        genModifierCode += genGuard(
-          ['ctrl', 'shift', 'alt', 'meta']
-            .filter(keyModifier => !modifiers[keyModifier])
-            .map(keyModifier => `$event.${keyModifier}Key`)
-            .join('||')
-        );
-      } else {
-        keys.push(key);
-      }
-    }
-    if (keys.length) {
-      code += genKeyFilter(keys);
-    }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
-    }
-    const handlerCode = isMethodPath
-      ? handler.value + '($event)'
-      : isFunctionExpression
-        ? `(${handler.value})($event)`
-        : handler.value;
-    return `function($event){${code}${handlerCode}}`
-  }
-}
-
-function genKeyFilter (keys) {
-  return `if(!('button' in $event)&&${keys.map(genFilterCode).join('&&')})return null;`
-}
-
-function genFilterCode (key) {
-  const keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return `$event.keyCode!==${keyVal}`
-  }
-  const code = keyCodes[key];
-  return (
-    `_k($event.keyCode,` +
-    `${JSON.stringify(key)},` +
-    `${JSON.stringify(code)},` +
-    `$event.key)`
-  )
-}
-
-/*  */
-
-function on (el, dir) {
-  if ("development" !== 'production' && dir.modifiers) {
-    warn(`v-on without argument does not support modifiers.`);
-  }
-  el.wrapListeners = (code) => `_g(${code},${dir.value})`;
-}
-
-/*  */
-
-function bind$1 (el, dir) {
-  el.wrapData = (code) => {
-    return `_b(${code},'${el.tag}',${dir.value},${
-      dir.modifiers && dir.modifiers.prop ? 'true' : 'false'
-    }${
-      dir.modifiers && dir.modifiers.sync ? ',true' : ''
-    })`
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on,
-  bind: bind$1,
-  cloak: noop
-};
-
-/*  */
-
-class CodegenState {
-  
-  
-  
-  
-  
-  
-  
-  
-
-  constructor (options) {
-    this.options = options;
-    this.warn = options.warn || baseWarn;
-    this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-    this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-    this.directives = extend(extend({}, baseDirectives), options.directives);
-    const isReservedTag = options.isReservedTag || no;
-    this.maybeComponent = (el) => !isReservedTag(el.tag);
-    this.onceId = 0;
-    this.staticRenderFns = [];
-  }
-}
-
-
-
-function generate (
-  ast,
-  options
-) {
-  const state = new CodegenState(options);
-  const code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: `with(this){return ${code}}`,
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genElement (el, state) {
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state)
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state)
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget) {
-    return genChildren(el, state) || 'void 0'
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state)
-  } else {
-    // component or element
-    let code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
-    } else {
-      const data = el.plain ? undefined : genData$2(el, state);
-
-      const children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = `_c('${el.tag}'${
-        data ? `,${data}` : '' // data
-      }${
-        children ? `,${children}` : '' // children
-      })`;
-    }
-    // module transforms
-    for (let i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code
-  }
-}
-
-// hoist static sub-trees out
-function genStatic (el, state, once$$1) {
-  el.staticProcessed = true;
-  state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`);
-  return `_m(${
-    state.staticRenderFns.length - 1
-  },${
-    el.staticInFor ? 'true' : 'false'
-  },${
-    once$$1 ? 'true' : 'false'
-  })`
-}
-
-// v-once
-function genOnce (el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.staticInFor) {
-    let key = '';
-    let parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break
-      }
-      parent = parent.parent;
-    }
-    if (!key) {
-      "development" !== 'production' && state.warn(
-        `v-once can only be used inside v-for that is keyed. `
-      );
-      return genElement(el, state)
-    }
-    return `_o(${genElement(el, state)},${state.onceId++},${key})`
-  } else {
-    return genStatic(el, state, true)
-  }
-}
-
-function genIf (
-  el,
-  state,
-  altGen,
-  altEmpty
-) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-}
-
-function genIfConditions (
-  conditions,
-  state,
-  altGen,
-  altEmpty
-) {
-  if (!conditions.length) {
-    return altEmpty || '_e()'
-  }
-
-  const condition = conditions.shift();
-  if (condition.exp) {
-    return `(${condition.exp})?${
-      genTernaryExp(condition.block)
-    }:${
-      genIfConditions(conditions, state, altGen, altEmpty)
-    }`
-  } else {
-    return `${genTernaryExp(condition.block)}`
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp (el) {
-    return altGen
-      ? altGen(el, state)
-      : el.once
-        ? genOnce(el, state)
-        : genElement(el, state)
-  }
-}
-
-function genFor (
-  el,
-  state,
-  altGen,
-  altHelper
-) {
-  const exp = el.for;
-  const alias = el.alias;
-  const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
-  const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
-
-  if ("development" !== 'production' &&
-    state.maybeComponent(el) &&
-    el.tag !== 'slot' &&
-    el.tag !== 'template' &&
-    !el.key
-  ) {
-    state.warn(
-      `<${el.tag} v-for="${alias} in ${exp}">: component lists rendered with ` +
-      `v-for should have explicit keys. ` +
-      `See https://vuejs.org/guide/list.html#key for more info.`,
-      true /* tip */
-    );
-  }
-
-  el.forProcessed = true; // avoid recursion
-  return `${altHelper || '_l'}((${exp}),` +
-    `function(${alias}${iterator1}${iterator2}){` +
-      `return ${(altGen || genElement)(el, state)}` +
-    '})'
-}
-
-function genData$2 (el, state) {
-  let data = '{';
-
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  const dirs = genDirectives(el, state);
-  if (dirs) data += dirs + ',';
-
-  // key
-  if (el.key) {
-    data += `key:${el.key},`;
-  }
-  // ref
-  if (el.ref) {
-    data += `ref:${el.ref},`;
-  }
-  if (el.refInFor) {
-    data += `refInFor:true,`;
-  }
-  // pre
-  if (el.pre) {
-    data += `pre:true,`;
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += `tag:"${el.tag}",`;
-  }
-  // module data generation functions
-  for (let i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += `attrs:{${genProps(el.attrs)}},`;
-  }
-  // DOM props
-  if (el.props) {
-    data += `domProps:{${genProps(el.props)}},`;
-  }
-  // event handlers
-  if (el.events) {
-    data += `${genHandlers(el.events, false, state.warn)},`;
-  }
-  if (el.nativeEvents) {
-    data += `${genHandlers(el.nativeEvents, true, state.warn)},`;
-  }
-  // slot target
-  // only for non-scoped slots
-  if (el.slotTarget && !el.slotScope) {
-    data += `slot:${el.slotTarget},`;
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += `${genScopedSlots(el.scopedSlots, state)},`;
-  }
-  // component v-model
-  if (el.model) {
-    data += `model:{value:${
-      el.model.value
-    },callback:${
-      el.model.callback
-    },expression:${
-      el.model.expression
-    }},`;
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    const inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += `${inlineTemplate},`;
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data
-}
-
-function genDirectives (el, state) {
-  const dirs = el.directives;
-  if (!dirs) return
-  let res = 'directives:[';
-  let hasRuntime = false;
-  let i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    const gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += `{name:"${dir.name}",rawName:"${dir.rawName}"${
-        dir.value ? `,value:(${dir.value}),expression:${JSON.stringify(dir.value)}` : ''
-      }${
-        dir.arg ? `,arg:"${dir.arg}"` : ''
-      }${
-        dir.modifiers ? `,modifiers:${JSON.stringify(dir.modifiers)}` : ''
-      }},`;
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']'
-  }
-}
-
-function genInlineTemplate (el, state) {
-  const ast = el.children[0];
-  if ("development" !== 'production' && (
-    el.children.length !== 1 || ast.type !== 1
-  )) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    const inlineRenderFns = generate(ast, state.options);
-    return `inlineTemplate:{render:function(){${
-      inlineRenderFns.render
-    }},staticRenderFns:[${
-      inlineRenderFns.staticRenderFns.map(code => `function(){${code}}`).join(',')
-    }]}`
-  }
-}
-
-function genScopedSlots (
-  slots,
-  state
-) {
-  return `scopedSlots:_u([${
-    Object.keys(slots).map(key => {
-      return genScopedSlot(key, slots[key], state)
-    }).join(',')
-  }])`
-}
-
-function genScopedSlot (
-  key,
-  el,
-  state
-) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
-  }
-  const fn = `function(${String(el.slotScope)}){` +
-    `return ${el.tag === 'template'
-      ? el.if
-        ? `${el.if}?${genChildren(el, state) || 'undefined'}:undefined`
-        : genChildren(el, state) || 'undefined'
-      : genElement(el, state)
-  }}`;
-  return `{key:${key},fn:${fn}}`
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  const exp = el.for;
-  const alias = el.alias;
-  const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
-  const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
-  el.forProcessed = true; // avoid recursion
-  return `_l((${exp}),` +
-    `function(${alias}${iterator1}${iterator2}){` +
-      `return ${genScopedSlot(key, el, state)}` +
-    '})'
-}
-
-function genChildren (
-  el,
-  state,
-  checkSkip,
-  altGenElement,
-  altGenNode
-) {
-  const children = el.children;
-  if (children.length) {
-    const el = children[0];
-    // optimize single v-for
-    if (children.length === 1 &&
-      el.for &&
-      el.tag !== 'template' &&
-      el.tag !== 'slot'
-    ) {
-      return (altGenElement || genElement)(el, state)
-    }
-    const normalizationType = checkSkip
-      ? getNormalizationType(children, state.maybeComponent)
-      : 0;
-    const gen = altGenNode || genNode;
-    return `[${children.map(c => gen(c, state)).join(',')}]${
-      normalizationType ? `,${normalizationType}` : ''
-    }`
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType (
-  children,
-  maybeComponent
-) {
-  let res = 0;
-  for (let i = 0; i < children.length; i++) {
-    const el = children[i];
-    if (el.type !== 1) {
-      continue
-    }
-    if (needsNormalization(el) ||
-        (el.ifConditions && el.ifConditions.some(c => needsNormalization(c.block)))) {
-      res = 2;
-      break
-    }
-    if (maybeComponent(el) ||
-        (el.ifConditions && el.ifConditions.some(c => maybeComponent(c.block)))) {
-      res = 1;
-    }
-  }
-  return res
-}
-
-function needsNormalization (el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-}
-
-function genNode (node, state) {
-  if (node.type === 1) {
-    return genElement(node, state)
-  } if (node.type === 3 && node.isComment) {
-    return genComment(node)
-  } else {
-    return genText(node)
-  }
-}
-
-function genText (text) {
-  return `_v(${text.type === 2
-    ? text.expression // no need for () because already wrapped in _s()
-    : transformSpecialNewlines(JSON.stringify(text.text))
-  })`
-}
-
-function genComment (comment) {
-  return `_e(${JSON.stringify(comment.text)})`
-}
-
-function genSlot (el, state) {
-  const slotName = el.slotName || '"default"';
-  const children = genChildren(el, state);
-  let res = `_t(${slotName}${children ? `,${children}` : ''}`;
-  const attrs = el.attrs && `{${el.attrs.map(a => `${camelize(a.name)}:${a.value}`).join(',')}}`;
-  const bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += `,null`;
-  }
-  if (attrs) {
-    res += `,${attrs}`;
-  }
-  if (bind$$1) {
-    res += `${attrs ? '' : ',null'},${bind$$1}`;
-  }
-  return res + ')'
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (
-  componentName,
-  el,
-  state
-) {
-  const children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return `_c(${componentName},${genData$2(el, state)}${
-    children ? `,${children}` : ''
-  })`
-}
-
-function genProps (props) {
-  let res = '';
-  for (let i = 0; i < props.length; i++) {
-    const prop = props[i];
-    res += `"${prop.name}":${transformSpecialNewlines(prop.value)},`;
-  }
-  return res.slice(0, -1)
-}
-
-// #3895, #4268
-function transformSpecialNewlines (text) {
-  return text
-    .replace(/\u2028/g, '\\u2028')
-    .replace(/\u2029/g, '\\u2029')
-}
-
-/*  */
-
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-const prohibitedKeywordRE = new RegExp('\\b' + (
-  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-  'super,throw,while,yield,delete,export,import,return,switch,default,' +
-  'extends,finally,continue,debugger,function,arguments'
-).split(',').join('\\b|\\b') + '\\b');
-
-// these unary operators should not be used as property/method names
-const unaryOperatorsRE = new RegExp('\\b' + (
-  'delete,typeof,void'
-).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
-
-// strip strings in expressions
-const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
-
-// detect problematic expressions in a template
-function detectErrors (ast) {
-  const errors = [];
-  if (ast) {
-    checkNode(ast, errors);
-  }
-  return errors
-}
-
-function checkNode (node, errors) {
-  if (node.type === 1) {
-    for (const name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        const value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, `v-for="${value}"`, errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, `${name}="${value}"`, errors);
-          } else {
-            checkExpression(value, `${name}="${value}"`, errors);
-          }
-        }
-      }
-    }
-    if (node.children) {
-      for (let i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
-      }
-    }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
-  }
-}
-
-function checkEvent (exp, text, errors) {
-  const stipped = exp.replace(stripStringRE, '');
-  const keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
-      `avoid using JavaScript unary operator as property name: ` +
-      `"${keywordMatch[0]}" in expression ${text.trim()}`
-    );
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier (
-  ident,
-  type,
-  text,
-  errors
-) {
-  if (typeof ident === 'string') {
-    try {
-      new Function(`var ${ident}=_`);
-    } catch (e) {
-      errors.push(`invalid ${type} "${ident}" in expression: ${text.trim()}`);
-    }
-  }
-}
-
-function checkExpression (exp, text, errors) {
-  try {
-    new Function(`return ${exp}`);
-  } catch (e) {
-    const keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push(
-        `avoid using JavaScript keyword as property name: ` +
-        `"${keywordMatch[0]}"\n  Raw expression: ${text.trim()}`
-      );
-    } else {
-      errors.push(
-        `invalid expression: ${e.message} in\n\n` +
-        `    ${exp}\n\n` +
-        `  Raw expression: ${text.trim()}\n`
-      );
-    }
-  }
-}
-
-/*  */
-
-function createFunction (code, errors) {
-  try {
-    return new Function(code)
-  } catch (err) {
-    errors.push({ err, code });
-    return noop
-  }
-}
-
-function createCompileToFunctionFn (compile) {
-  const cache = Object.create(null);
-
-  return function compileToFunctions (
-    template,
-    options,
-    vm
-  ) {
-    options = extend({}, options);
-    const warn$$1 = options.warn || warn;
-    delete options.warn;
-
-    /* istanbul ignore if */
-    {
-      // detect possible CSP restriction
-      try {
-        new Function('return 1');
-      } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$$1(
-            'It seems you are using the standalone build of Vue.js in an ' +
-            'environment with Content Security Policy that prohibits unsafe-eval. ' +
-            'The template compiler cannot work in this environment. Consider ' +
-            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-            'templates into render functions.'
-          );
-        }
-      }
-    }
-
-    // check cache
-    const key = options.delimiters
-      ? String(options.delimiters) + template
-      : template;
-    if (cache[key]) {
-      return cache[key]
-    }
-
-    // compile
-    const compiled = compile(template, options);
-
-    // check compilation errors/tips
-    {
-      if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          `Error compiling template:\n\n${template}\n\n` +
-          compiled.errors.map(e => `- ${e}`).join('\n') + '\n',
-          vm
-        );
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(msg => tip(msg, vm));
-      }
-    }
-
-    // turn code into functions
-    const res = {};
-    const fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(code => {
-      return createFunction(code, fnGenErrors)
-    });
-
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn$$1(
-          `Failed to generate render function:\n\n` +
-          fnGenErrors.map(({ err, code }) => `${err.toString()} in\n\n${code}\n`).join('\n'),
-          vm
-        );
-      }
-    }
-
-    return (cache[key] = res)
-  }
-}
-
-/*  */
-
-function createCompilerCreator (baseCompile) {
-  return function createCompiler (baseOptions) {
-    function compile (
-      template,
-      options
-    ) {
-      const finalOptions = Object.create(baseOptions);
-      const errors = [];
-      const tips = [];
-      finalOptions.warn = (msg, tip) => {
-        (tip ? tips : errors).push(msg);
-      };
-
-      if (options) {
-        // merge custom modules
-        if (options.modules) {
-          finalOptions.modules =
-            (baseOptions.modules || []).concat(options.modules);
-        }
-        // merge custom directives
-        if (options.directives) {
-          finalOptions.directives = extend(
-            Object.create(baseOptions.directives),
-            options.directives
-          );
-        }
-        // copy other options
-        for (const key in options) {
-          if (key !== 'modules' && key !== 'directives') {
-            finalOptions[key] = options[key];
-          }
-        }
-      }
-
-      const compiled = baseCompile(template, finalOptions);
-      {
-        errors.push.apply(errors, detectErrors(compiled.ast));
-      }
-      compiled.errors = errors;
-      compiled.tips = tips;
-      return compiled
-    }
-
-    return {
-      compile,
-      compileToFunctions: createCompileToFunctionFn(compile)
-    }
-  }
-}
-
-/*  */
-
-// `createCompilerCreator` allows creating compilers that use alternative
-// parser/optimizer/codegen, e.g the SSR optimizing compiler.
-// Here we just export a default compiler using the default parts.
-const createCompiler = createCompilerCreator(function baseCompile (
-  template,
-  options
-) {
-  const ast = parse(template.trim(), options);
-  optimize(ast, options);
-  const code = generate(ast, options);
-  return {
-    ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
-  }
-});
-
-/*  */
-
-const { compile, compileToFunctions } = createCompiler(baseOptions);
-
-/*  */
-
-// check whether current browser encodes a char inside attribute values
-let div;
-function getShouldDecode (href) {
-  div = div || document.createElement('div');
-  div.innerHTML = href ? `<a href="\n"/>` : `<div a="\n"/>`;
-  return div.innerHTML.indexOf('&#10;') > 0
-}
-
-// #3663: IE encodes newlines inside attribute values while other browsers don't
-const shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
-// #6828: chrome encodes content in a[href]
-const shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
-
-/*  */
-
-const idToTemplate = cached(id => {
-  const el = query(id);
-  return el && el.innerHTML
-});
-
-const mount = Vue$3.prototype.$mount;
-Vue$3.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && query(el);
-
-  /* istanbul ignore if */
-  if (el === document.body || el === document.documentElement) {
-    "development" !== 'production' && warn(
-      `Do not mount Vue to <html> or <body> - mount to normal elements instead.`
-    );
-    return this
-  }
-
-  const options = this.$options;
-  // resolve template/el and convert to render function
-  if (!options.render) {
-    let template = options.template;
-    if (template) {
-      if (typeof template === 'string') {
-        if (template.charAt(0) === '#') {
-          template = idToTemplate(template);
-          /* istanbul ignore if */
-          if ("development" !== 'production' && !template) {
-            warn(
-              `Template element not found or is empty: ${options.template}`,
-              this
-            );
-          }
-        }
-      } else if (template.nodeType) {
-        template = template.innerHTML;
-      } else {
-        {
-          warn('invalid template option:' + template, this);
-        }
-        return this
-      }
-    } else if (el) {
-      template = getOuterHTML(el);
-    }
-    if (template) {
-      /* istanbul ignore if */
-      if ("development" !== 'production' && config.performance && mark) {
-        mark('compile');
-      }
-
-      const { render, staticRenderFns } = compileToFunctions(template, {
-        shouldDecodeNewlines,
-        shouldDecodeNewlinesForHref,
-        delimiters: options.delimiters,
-        comments: options.comments
-      }, this);
-      options.render = render;
-      options.staticRenderFns = staticRenderFns;
-
-      /* istanbul ignore if */
-      if ("development" !== 'production' && config.performance && mark) {
-        mark('compile end');
-        measure(`vue ${this._name} compile`, 'compile', 'compile end');
-      }
-    }
-  }
-  return mount.call(this, el, hydrating)
-};
-
-/**
- * Get outerHTML of elements, taking care
- * of SVG elements in IE as well.
- */
-function getOuterHTML (el) {
-  if (el.outerHTML) {
-    return el.outerHTML
-  } else {
-    const container = document.createElement('div');
-    container.appendChild(el.cloneNode(true));
-    return container.innerHTML
-  }
-}
-
-Vue$3.compile = compileToFunctions;
-
-export default Vue$3;
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
deleted file mode 100644
index c63181e99ca..00000000000
--- a/dist/vue.esm.browser.min.js
+++ /dev/null
@@ -1,6 +0,0 @@
-/*!
- * Vue.js v2.5.18-beta.0
- * (c) 2014-2018 Evan You
- * Released under the MIT License.
- */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}const s=Object.prototype.toString;function a(t){return"[object Object]"===s.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function u(t){const e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function h(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const m=Object.prototype.hasOwnProperty;function y(t,e){return m.call(t,e)}function g(t){const e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}const v=/-(\w)/g,$=g(t=>t.replace(v,(t,e)=>e?e.toUpperCase():"")),_=g(t=>t.charAt(0).toUpperCase()+t.slice(1)),b=/\B([A-Z])/g,w=g(t=>t.replace(b,"-$1").toLowerCase());const C=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){const o=arguments.length;return o?o>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function x(t,e){e=e||0;let n=t.length-e;const o=new Array(n);for(;n--;)o[n]=t[n+e];return o}function k(t,e){for(const n in e)t[n]=e[n];return t}function A(t){const e={};for(let n=0;n<t.length;n++)t[n]&&k(e,t[n]);return e}function O(t,e,n){}const S=(t,e,n)=>!1,T=t=>t;function N(t,e){if(t===e)return!0;const n=i(t),o=i(e);if(!n||!o)return!n&&!o&&String(t)===String(e);try{const n=Array.isArray(t),o=Array.isArray(e);if(n&&o)return t.length===e.length&&t.every((t,n)=>N(t,e[n]));if(t instanceof Date&&e instanceof Date)return t.getTime()===e.getTime();if(n||o)return!1;{const 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
deleted file mode 100644
index bf4d87c6299..00000000000
--- a/dist/vue.runtime.common.dev.js
+++ /dev/null
@@ -1,8084 +0,0 @@
-/*!
- * Vue.js v2.5.18-beta.0
- * (c) 2014-2018 Evan You
- * Released under the MIT License.
- */
-'use strict';
-
-/*  */
-
-var emptyObject = Object.freeze({});
-
-// These helpers produce better VM code in JS engines due to their
-// explicitness and function inlining.
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive.
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value, e.g., [object Object].
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert an input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if an attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array.
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether an object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it,
- * e.g., PhantomJS 1.x. Technically, we don't need this anymore
- * since native bind is now performant enough in most browsers.
- * But removing it would mean breaking code that was able to run in
- * PhantomJS 1.x, so this must be kept for backward compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
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- */
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-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
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-  }
-  return ret
-}
-
-/**
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- */
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-  for (var key in _from) {
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-  }
-  return to
-}
-
-/**
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- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/* eslint-disable no-unused-vars */
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
- */
-function noop (a, b, c) {}
-
-/**
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- */
-var no = function (a, b, c) { return false; };
-
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-
-/**
- * Return the same value.
- */
-var identity = function (_) { return _; };
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (a instanceof Date && b instanceof Date) {
-        return a.getTime() === b.getTime()
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}
-
-/**
- * Return the first index at which a loosely equal value can be
- * found in the array (if value is a plain object, the array must
- * contain an object of the same shape), or -1 if it is not present.
- */
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: "development" !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: "development" !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Perform updates asynchronously. Intended to be used by Vue Test Utils
-   * This will significantly reduce performance if set to false.
-   */
-  async: true,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
-
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = /*@__PURE__*/(function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
-
-{
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
-
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm || {};
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
-/*  */
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  if (!config.async) {
-    // subs aren't sorted in scheduler if not running async
-    // we need to sort them now to make sure they fire in correct
-    // order
-    subs.sort(function (a, b) { return a.id - b.id; });
-  }
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (target) {
-  targetStack.push(target);
-  Dep.target = target;
-}
-
-function popTarget () {
-  targetStack.pop();
-  Dep.target = targetStack[targetStack.length - 1];
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    // #7975
-    // clone children array to avoid mutating original in case of cloning
-    // a child.
-    vnode.children && vnode.children.slice(),
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-function toggleObserving (value) {
-  shouldObserve = value;
-}
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    if (hasProto) {
-      protoAugment(value, arrayMethods);
-    } else {
-      copyAugment(value, arrayMethods, arrayKeys);
-    }
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through all properties and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment a target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment a target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive$$1 (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if (customSetter) {
-        customSetter();
-      }
-      // #7981: for accessor properties without setter
-      if (getter && !setter) { return }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if (isUndef(target) || isPrimitive(target)
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
-  }
-  defineReactive$$1(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if (isUndef(target) || isPrimitive(target)
-  ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-{
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (
-      toVal !== fromVal &&
-      isPlainObject(toVal) &&
-      isPlainObject(fromVal)
-    ) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
-    }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
-      }
-    }
-  }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  return childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && "development" !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
-  }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-  
-  // Apply extends and mixins on the child options,
-  // but only if it is a raw options object that isn't
-  // the result of another mergeOptions call.
-  // Only merged options has the _base property.
-  if (!child._base) {
-    if (child.extends) {
-      parent = mergeOptions(parent, child.extends, vm);
-    }
-    if (child.mixins) {
-      for (var i = 0, l = child.mixins.length; i < l; i++) {
-        parent = mergeOptions(parent, child.mixins[i], vm);
-      }
-    }
-  }
-
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if (isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-
-  if (!valid) {
-    warn(
-      getInvalidTypeMessage(name, value, expectedTypes),
-      vm
-    );
-    return
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
-  }
-}
-
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
-
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
-
-function getInvalidTypeMessage (name, value, expectedTypes) {
-  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
-    " Expected " + (expectedTypes.map(capitalize).join(', '));
-  var expectedType = expectedTypes[0];
-  var receivedType = toRawType(value);
-  var expectedValue = styleValue(value, expectedType);
-  var receivedValue = styleValue(value, receivedType);
-  // check if we need to specify expected value
-  if (expectedTypes.length === 1 &&
-      isExplicable(expectedType) &&
-      !isBoolean(expectedType, receivedType)) {
-    message += " with value " + expectedValue;
-  }
-  message += ", got " + receivedType + " ";
-  // check if we need to specify received value
-  if (isExplicable(receivedType)) {
-    message += "with value " + receivedValue + ".";
-  }
-  return message
-}
-
-function styleValue (value, type) {
-  if (type === 'String') {
-    return ("\"" + value + "\"")
-  } else if (type === 'Number') {
-    return ("" + (Number(value)))
-  } else {
-    return ("" + value)
-  }
-}
-
-function isExplicable (value) {
-  var explicitTypes = ['string', 'number', 'boolean'];
-  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
-}
-
-function isBoolean () {
-  var args = [], len = arguments.length;
-  while ( len-- ) args[ len ] = arguments[ len ];
-
-  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;    
-    }
-  })
-}
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
-/*  */
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-var initProxy;
-
-{
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
-
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
-
-  var warnReservedPrefix = function (target, key) {
-    warn(
-      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
-      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
-      'See: https://vuejs.org/v2/api/#data',
-      target
-    );
-  };
-
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
-      }
-    });
-  }
-
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) ||
-        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
-      if (!has && !isAllowed) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-var seenObjects = new _Set();
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
-var mark;
-var measure;
-
-{
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  createOnceHandler,
-  vm
-) {
-  var name, def$$1, cur, old, event;
-  for (name in on) {
-    def$$1 = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      if (isTrue(event.once)) {
-        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
-      }
-      add(event.name, cur, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  var invoker;
-  var oldHook = def[hookKey];
-
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res
-}
-
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      }
-    });
-
-    var reject = once(function (reason) {
-      warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
-  }
-}
-
-/*  */
-
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
-/*  */
-
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
-      }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
-      }
-    }
-    return vm
-  };
-}
-
-/*  */
-
-
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
-  }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function initLifecycle (vm) {
-  var options = vm.$options;
-
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    activeInstance = prevActiveInstance;
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted) {
-        callHook(vm, 'beforeUpdate');
-      }
-    }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
-
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
-  }
-  return false
-}
-
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
-
-/*  */
-
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (!config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-
-
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
-    }
-    this.active = false;
-  }
-};
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
-      }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
-
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
-
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
-  }
-}
-
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
-}
-
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
-      }
-    }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
-
-/*  */
-
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
-
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      }
-    });
-    toggleObserving(true);
-  }
-}
-
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
-    }
-    return result
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (isDef(ret)) {
-    (ret)._isVList = true;
-  }
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (!isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
-  }
-
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  var vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-    }
-    return res
-  }
-}
-
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
-  } else {
-    on[event] = callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
-    }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  }
-}
-
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
-
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-var uid$3 = 0;
-
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if (config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
-    }
-    /* istanbul ignore else */
-    {
-      initProxy(vm);
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if (config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
-    }
-  }
-  return modified
-}
-
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
-function Vue (options) {
-  if (!(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
-
-/*  */
-
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
-
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
-
-/*  */
-
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
-
-/*  */
-
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
-
-    var name = extendOptions.name || Super.options.name;
-    if (name) {
-      validateComponentName(name);
-    }
-
-    var Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
-
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
-
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if (type === 'component') {
-          validateComponentName(id);
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
-    };
-  });
-}
-
-/*  */
-
-
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-
-  destroyed: function destroyed () {
-    for (var key in this.cache) {
-      pruneCacheEntry(this.cache, key, this.keys);
-    }
-  },
-
-  mounted: function mounted () {
-    var this$1 = this;
-
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
-
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-};
-
-var builtInComponents = {
-  KeepAlive: KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue);
-
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
-  }
-});
-
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.18-beta.0';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-var xlinkNS = 'http://www.w3.org/1999/xlink';
-
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
-
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
-
-/*  */
-
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class)
-}
-
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
-
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
-  }
-  if (isReservedTag(tag)) {
-    return false
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-  }
-}
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
-  }
-}
-
-/*  */
-
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-var nodeOps = /*#__PURE__*/Object.freeze({
-  createElement: createElement$1,
-  createElementNS: createElementNS,
-  createTextNode: createTextNode,
-  createComment: createComment,
-  insertBefore: insertBefore,
-  removeChild: removeChild,
-  appendChild: appendChild,
-  parentNode: parentNode,
-  nextSibling: nextSibling,
-  tagName: tagName,
-  setTextContent: setTextContent,
-  setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
-
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function childrenIgnored (vnode) {
-  return vnode && vnode.data && vnode.data.domProps && (
-    vnode.data.domProps.innerHTML || vnode.data.domProps.textContent
-  )
-}
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        !childrenIgnored(a) && !childrenIgnored(b) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
-
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
-
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
-  }
-  return map
-}
-
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
-
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
-
-  function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove$$1.listeners = listeners;
-    return remove$$1
-  }
-
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
-
-  var creatingElmInVPre = 0;
-
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
-
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if (data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
-      }
-    }
-  }
-
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (nodeOps.parentNode(ref$$1) === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
-    }
-  }
-
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag)
-  }
-
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
-        }
-        ancestor = ancestor.parent;
-      }
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
-
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
-
-    {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
-        }
-      }
-    }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
-  }
-
-  function patchVnode (
-    oldVnode,
-    vnode,
-    insertedVnodeQueue,
-    ownerArray,
-    index,
-    removeOnly
-  ) {
-    if (oldVnode === vnode) {
-      return
-    }
-
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // clone reused vnode
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    var elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
-
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        {
-          checkDuplicateKeys(ch);
-        }
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
-    }
-  }
-
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if (typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if (typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
-            }
-          }
-        }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true
-  }
-
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
-    }
-  }
-
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
-      return
-    }
-
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
-
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
-
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-            ancestor = ancestor.parent;
-          }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
-  }
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  // $flow-disable-line
-  return res
-}
-
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
-
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
-    }
-  }
-}
-
-var baseModules = [
-  ref,
-  directives
-];
-
-/*  */
-
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    baseSetAttr(el, key, value);
-  }
-}
-
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-    /* istanbul ignore if */
-    if (
-      isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
-    ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
-    }
-    el.setAttribute(key, value);
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler$1 (event, handler, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
-    }
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res
-}
-
-/*  */
-
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-var vendorNames = ['Webkit', 'Moz', 'ms'];
-
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
-
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
-  }
-
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
-
-  var style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
-
-  var newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-var whitespaceRE = /\s+/;
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition (def$$1) {
-  if (!def$$1) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
-    var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
-    }
-    extend(res, def$$1);
-    return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
-
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  // JSDOM may return undefined for transition properties
-  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
-  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
-  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
-// in a locale-dependent way, using a comma instead of a dot.
-// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
-// as a floor function) causing unexpected behaviors
-function toMs (s) {
-  return Number(s.slice(0, -1).replace(',', '.')) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if (explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
-
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave (vnode, rm) {
-  var el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
-
-  if (isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show && el.parentNode) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
-            }
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
-
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
-
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: directive,
-  show: show
-};
-
-/*  */
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
-
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data
-}
-
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
-
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
-  }
-}
-
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
-
-var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
-
-var isVShowDirective = function (d) { return d.name === 'show'; };
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render: function render (h) {
-    var this$1 = this;
-
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(isNotTextNode);
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
-
-    // warn multiple elements
-    if (children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
-
-    var mode = this.mode;
-
-    // warn invalid mode
-    if (mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
-
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
-
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
-      child.data.show = true;
-    }
-
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
-      }
-    }
-
-    return rawChild
-  }
-};
-
-/*  */
-
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props: props,
-
-  beforeMount: function beforeMount () {
-    var this$1 = this;
-
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      update.call(this$1, vnode, hydrating);
-    };
-  },
-
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
-        }
-      }
-    }
-
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children)
-  },
-
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (e && e.target !== el) {
-            return
-          }
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
-    }
-  }
-};
-
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        isChrome
-      ) {
-        console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
-        );
-      }
-    }
-    if (config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
-}
-
-/*  */
-
-module.exports = Vue;
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
deleted file mode 100644
index 5beea1d7e61..00000000000
--- a/dist/vue.runtime.common.prod.js
+++ /dev/null
@@ -1,6 +0,0 @@
-/*!
- * Vue.js v2.5.18-beta.0
- * (c) 2014-2018 Evan You
- * Released under the MIT License.
- */
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\ No newline at end of file

From 06dbb2ab2e7f10d00d9801e4e1641c2edf83db9e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 18:18:26 -0500
Subject: [PATCH 718/911] build: build 2.5.22

---
 dist/vue.common.js                          | 79 ++++++++++-----------
 dist/vue.esm.js                             | 79 ++++++++++-----------
 dist/vue.js                                 | 79 ++++++++++-----------
 dist/vue.min.js                             |  6 +-
 dist/vue.runtime.common.js                  | 79 ++++++++++-----------
 dist/vue.runtime.esm.js                     | 79 ++++++++++-----------
 dist/vue.runtime.js                         | 79 ++++++++++-----------
 dist/vue.runtime.min.js                     |  6 +-
 packages/vue-server-renderer/basic.js       | 57 ++++++++-------
 packages/vue-server-renderer/build.js       | 59 ++++++++-------
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 31 ++++++--
 packages/vue-template-compiler/build.js     | 31 ++++++--
 packages/vue-template-compiler/package.json |  2 +-
 14 files changed, 329 insertions(+), 339 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 2fc5621920f..5569a140379 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 'use strict';
@@ -629,7 +629,7 @@ if (process.env.NODE_ENV !== 'production') {
       ? vm.options
       : vm._isVue
         ? vm.$options || vm.constructor.options
-        : vm || {};
+        : vm;
     var name = options.name || options._componentTag;
     var file = options.__file;
     if (!name && file) {
@@ -724,9 +724,9 @@ Dep.prototype.notify = function notify () {
   }
 };
 
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
 Dep.target = null;
 var targetStack = [];
 
@@ -1254,13 +1254,26 @@ function mergeHook (
   parentVal,
   childVal
 ) {
-  return childVal
+  var res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
-    : parentVal
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1496,7 +1509,7 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  
+
   // Apply extends and mixins on the child options,
   // but only if it is a raw options object that isn't
   // the result of another mergeOptions call.
@@ -2431,6 +2444,8 @@ function resolveAsyncComponent (
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
         forceRender(true);
+      } else {
+        contexts.length = 0;
       }
     });
 
@@ -2598,8 +2613,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
       }
       return vm
     }
@@ -2612,16 +2627,14 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
       }
     }
     return vm
@@ -4791,36 +4804,16 @@ function resolveConstructorOptions (Ctor) {
 function resolveModifiedOptions (Ctor) {
   var modified;
   var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
   var sealed = Ctor.sealedOptions;
   for (var key in latest) {
     if (latest[key] !== sealed[key]) {
       if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      modified[key] = latest[key];
     }
   }
   return modified
 }
 
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
 function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
     !(this instanceof Vue)
@@ -5189,7 +5182,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.21';
+Vue.version = '2.5.22';
 
 /*  */
 
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 071176e41b8..790ac604dda 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 /*  */
@@ -627,7 +627,7 @@ if (process.env.NODE_ENV !== 'production') {
       ? vm.options
       : vm._isVue
         ? vm.$options || vm.constructor.options
-        : vm || {};
+        : vm;
     var name = options.name || options._componentTag;
     var file = options.__file;
     if (!name && file) {
@@ -722,9 +722,9 @@ Dep.prototype.notify = function notify () {
   }
 };
 
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
 Dep.target = null;
 var targetStack = [];
 
@@ -1252,13 +1252,26 @@ function mergeHook (
   parentVal,
   childVal
 ) {
-  return childVal
+  var res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
-    : parentVal
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1494,7 +1507,7 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  
+
   // Apply extends and mixins on the child options,
   // but only if it is a raw options object that isn't
   // the result of another mergeOptions call.
@@ -2429,6 +2442,8 @@ function resolveAsyncComponent (
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
         forceRender(true);
+      } else {
+        contexts.length = 0;
       }
     });
 
@@ -2596,8 +2611,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
       }
       return vm
     }
@@ -2610,16 +2625,14 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
       }
     }
     return vm
@@ -4789,36 +4802,16 @@ function resolveConstructorOptions (Ctor) {
 function resolveModifiedOptions (Ctor) {
   var modified;
   var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
   var sealed = Ctor.sealedOptions;
   for (var key in latest) {
     if (latest[key] !== sealed[key]) {
       if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      modified[key] = latest[key];
     }
   }
   return modified
 }
 
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
 function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
     !(this instanceof Vue)
@@ -5187,7 +5180,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.21';
+Vue.version = '2.5.22';
 
 /*  */
 
diff --git a/dist/vue.js b/dist/vue.js
index e36b5604a9d..7ae4d303aef 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
@@ -633,7 +633,7 @@
         ? vm.options
         : vm._isVue
           ? vm.$options || vm.constructor.options
-          : vm || {};
+          : vm;
       var name = options.name || options._componentTag;
       var file = options.__file;
       if (!name && file) {
@@ -728,9 +728,9 @@
     }
   };
 
-  // the current target watcher being evaluated.
-  // this is globally unique because there could be only one
-  // watcher being evaluated at any time.
+  // The current target watcher being evaluated.
+  // This is globally unique because only one watcher
+  // can be evaluated at a time.
   Dep.target = null;
   var targetStack = [];
 
@@ -1256,13 +1256,26 @@
     parentVal,
     childVal
   ) {
-    return childVal
+    var res = childVal
       ? parentVal
         ? parentVal.concat(childVal)
         : Array.isArray(childVal)
           ? childVal
           : [childVal]
-      : parentVal
+      : parentVal;
+    return res
+      ? dedupeHooks(res)
+      : res
+  }
+
+  function dedupeHooks (hooks) {
+    var res = [];
+    for (var i = 0; i < hooks.length; i++) {
+      if (res.indexOf(hooks[i]) === -1) {
+        res.push(hooks[i]);
+      }
+    }
+    return res
   }
 
   LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1498,7 +1511,7 @@
     normalizeProps(child, vm);
     normalizeInject(child, vm);
     normalizeDirectives(child);
-    
+
     // Apply extends and mixins on the child options,
     // but only if it is a raw options object that isn't
     // the result of another mergeOptions call.
@@ -2429,6 +2442,8 @@
         // (async resolves are shimmed as synchronous during SSR)
         if (!sync) {
           forceRender(true);
+        } else {
+          contexts.length = 0;
         }
       });
 
@@ -2594,8 +2609,8 @@
       }
       // array of events
       if (Array.isArray(event)) {
-        for (var i = 0, l = event.length; i < l; i++) {
-          vm.$off(event[i], fn);
+        for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+          vm.$off(event[i$1], fn);
         }
         return vm
       }
@@ -2608,16 +2623,14 @@
         vm._events[event] = null;
         return vm
       }
-      if (fn) {
-        // specific handler
-        var cb;
-        var i$1 = cbs.length;
-        while (i$1--) {
-          cb = cbs[i$1];
-          if (cb === fn || cb.fn === fn) {
-            cbs.splice(i$1, 1);
-            break
-          }
+      // specific handler
+      var cb;
+      var i = cbs.length;
+      while (i--) {
+        cb = cbs[i];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i, 1);
+          break
         }
       }
       return vm
@@ -4774,36 +4787,16 @@
   function resolveModifiedOptions (Ctor) {
     var modified;
     var latest = Ctor.options;
-    var extended = Ctor.extendOptions;
     var sealed = Ctor.sealedOptions;
     for (var key in latest) {
       if (latest[key] !== sealed[key]) {
         if (!modified) { modified = {}; }
-        modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+        modified[key] = latest[key];
       }
     }
     return modified
   }
 
-  function dedupe (latest, extended, sealed) {
-    // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-    // between merges
-    if (Array.isArray(latest)) {
-      var res = [];
-      sealed = Array.isArray(sealed) ? sealed : [sealed];
-      extended = Array.isArray(extended) ? extended : [extended];
-      for (var i = 0; i < latest.length; i++) {
-        // push original options and not sealed options to exclude duplicated options
-        if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-          res.push(latest[i]);
-        }
-      }
-      return res
-    } else {
-      return latest
-    }
-  }
-
   function Vue (options) {
     if (!(this instanceof Vue)
     ) {
@@ -5171,7 +5164,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.21';
+  Vue.version = '2.5.22';
 
   /*  */
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index f2aff3ab950..5ebe4208e1c 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return null==e?"":"object"==typeof e?JSON.stringify(e,null,2):String(e)}function l(e){var t=parseFloat(e);return isNaN(t)?e:t}function f(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var p=f("slot,component",!0),d=f("key,ref,slot,slot-scope,is");function v(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(e,t){return h.call(e,t)}function y(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var g=/-(\w)/g,_=y(function(e){return e.replace(g,function(e,t){return t?t.toUpperCase():""})}),b=y(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),$=/\B([A-Z])/g,w=y(function(e){return e.replace($,"-$1").toLowerCase()});var C=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function x(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function A(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function O(e,t,n){}var S=function(e,t,n){return!1},T=function(e){return e};function N(e,t){if(e===t)return!0;var 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re=O,ie=0,oe=function(){this.id=ie++,this.subs=[]};oe.prototype.addSub=function(e){this.subs.push(e)},oe.prototype.removeSub=function(e){v(this.subs,e)},oe.prototype.depend=function(){oe.target&&oe.target.addDep(this)},oe.prototype.notify=function(){for(var e=this.subs.slice(),t=0,n=e.length;t<n;t++)e[t].update()},oe.target=null;var ae=[];function se(e){ae.push(e),oe.target=e}function ce(){ae.pop(),oe.target=ae[ae.length-1]}var ue=function(e,t,n,r,i,o,a,s){this.tag=e,this.data=t,this.children=n,this.text=r,this.elm=i,this.ns=void 0,this.context=o,this.fnContext=void 0,this.fnOptions=void 0,this.fnScopeId=void 0,this.key=t&&t.key,this.componentOptions=a,this.componentInstance=void 0,this.parent=void 0,this.raw=!1,this.isStatic=!1,this.isRootInsert=!0,this.isComment=!1,this.isCloned=!1,this.isOnce=!1,this.asyncFactory=s,this.asyncMeta=void 0,this.isAsyncPlaceholder=!1},le={child:{configurable:!0}};le.child.get=function(){return 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n=t.pre;return e.pre&&(t.pre=e.pre),t.staticRenderFns.push("with(this){return "+la(e,t)+"}"),t.pre=n,"_m("+(t.staticRenderFns.length-1)+(e.staticInFor?",true":"")+")"}function pa(e,t){if(e.onceProcessed=!0,e.if&&!e.ifProcessed)return da(e,t);if(e.staticInFor){for(var n="",r=e.parent;r;){if(r.for){n=r.key;break}r=r.parent}return n?"_o("+la(e,t)+","+t.onceId+++","+n+")":la(e,t)}return fa(e,t)}function da(e,t,n,r){return e.ifProcessed=!0,function e(t,n,r,i){if(!t.length)return i||"_e()";var o=t.shift();return o.exp?"("+o.exp+")?"+a(o.block)+":"+e(t,n,r,i):""+a(o.block);function a(e){return r?r(e,n):e.once?pa(e,n):la(e,n)}}(e.ifConditions.slice(),t,n,r)}function va(e,t){var n="{",r=function(e,t){var n=e.directives;if(!n)return;var r,i,o,a,s="directives:[",c=!1;for(r=0,i=n.length;r<i;r++){o=n[r],a=!0;var u=t.directives[o.name];u&&(a=!!u(e,o,t.warn)),a&&(c=!0,s+='{name:"'+o.name+'",rawName:"'+o.rawName+'"'+(o.value?",value:("+o.value+"),expression:"+JSON.stringify(o.value):"")+(o.arg?',arg:"'+o.arg+'"':"")+(o.modifiers?",modifiers:"+JSON.stringify(o.modifiers):"")+"},")}if(c)return s.slice(0,-1)+"]"}(e,t);r&&(n+=r+","),e.key&&(n+="key:"+e.key+","),e.ref&&(n+="ref:"+e.ref+","),e.refInFor&&(n+="refInFor:true,"),e.pre&&(n+="pre:true,"),e.component&&(n+='tag:"'+e.tag+'",');for(var i=0;i<t.dataGenFns.length;i++)n+=t.dataGenFns[i](e);if(e.attrs&&(n+="attrs:{"+_a(e.attrs)+"},"),e.props&&(n+="domProps:{"+_a(e.props)+"},"),e.events&&(n+=ia(e.events,!1)+","),e.nativeEvents&&(n+=ia(e.nativeEvents,!0)+","),e.slotTarget&&!e.slotScope&&(n+="slot:"+e.slotTarget+","),e.scopedSlots&&(n+=function(e,t){return"scopedSlots:_u(["+Object.keys(e).map(function(n){return ha(n,e[n],t)}).join(",")+"])"}(e.scopedSlots,t)+","),e.model&&(n+="model:{value:"+e.model.value+",callback:"+e.model.callback+",expression:"+e.model.expression+"},"),e.inlineTemplate){var o=function(e,t){var n=e.children[0];if(1===n.type){var r=ua(n,t.options);return"inlineTemplate:{render:function(){"+r.render+"},staticRenderFns:["+r.staticRenderFns.map(function(e){return"function(){"+e+"}"}).join(",")+"]}"}}(e,t);o&&(n+=o+",")}return n=n.replace(/,$/,"")+"}",e.wrapData&&(n=e.wrapData(n)),e.wrapListeners&&(n=e.wrapListeners(n)),n}function ha(e,t,n){return t.for&&!t.forProcessed?function(e,t,n){var r=t.for,i=t.alias,o=t.iterator1?","+t.iterator1:"",a=t.iterator2?","+t.iterator2:"";return t.forProcessed=!0,"_l(("+r+"),function("+i+o+a+"){return "+ha(e,t,n)+"})"}(e,t,n):"{key:"+e+",fn:"+("function("+String(t.slotScope)+"){return "+("template"===t.tag?t.if?"("+t.if+")?"+(ma(t,n)||"undefined")+":undefined":ma(t,n)||"undefined":la(t,n))+"}")+"}"}function ma(e,t,n,r,i){var 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o=r.delimiters?String(r.delimiters)+n:n;if(t[o])return t[o];var a=e(n,r),s={},c=[];return s.render=$a(a.render,c),s.staticRenderFns=a.staticRenderFns.map(function(e){return $a(e,c)}),t[o]=s}}(t)}})(Go),ka=(xa.compile,xa.compileToFunctions);function Aa(e){return(Ca=Ca||document.createElement("div")).innerHTML=e?'<a href="\n"/>':'<div a="\n"/>',Ca.innerHTML.indexOf("&#10;")>0}var Oa=!!B&&Aa(!1),Sa=!!B&&Aa(!0),Ta=y(function(e){var t=Pn(e);return t&&t.innerHTML}),Na=un.prototype.$mount;return un.prototype.$mount=function(e,t){if((e=e&&Pn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=Ta(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index a8358a1ebe3..c5e07e34eed 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 'use strict';
@@ -620,7 +620,7 @@ if (process.env.NODE_ENV !== 'production') {
       ? vm.options
       : vm._isVue
         ? vm.$options || vm.constructor.options
-        : vm || {};
+        : vm;
     var name = options.name || options._componentTag;
     var file = options.__file;
     if (!name && file) {
@@ -715,9 +715,9 @@ Dep.prototype.notify = function notify () {
   }
 };
 
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
 Dep.target = null;
 var targetStack = [];
 
@@ -1245,13 +1245,26 @@ function mergeHook (
   parentVal,
   childVal
 ) {
-  return childVal
+  var res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
-    : parentVal
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1487,7 +1500,7 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  
+
   // Apply extends and mixins on the child options,
   // but only if it is a raw options object that isn't
   // the result of another mergeOptions call.
@@ -2422,6 +2435,8 @@ function resolveAsyncComponent (
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
         forceRender(true);
+      } else {
+        contexts.length = 0;
       }
     });
 
@@ -2589,8 +2604,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
       }
       return vm
     }
@@ -2603,16 +2618,14 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
       }
     }
     return vm
@@ -4782,36 +4795,16 @@ function resolveConstructorOptions (Ctor) {
 function resolveModifiedOptions (Ctor) {
   var modified;
   var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
   var sealed = Ctor.sealedOptions;
   for (var key in latest) {
     if (latest[key] !== sealed[key]) {
       if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      modified[key] = latest[key];
     }
   }
   return modified
 }
 
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
 function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
     !(this instanceof Vue)
@@ -5180,7 +5173,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.21';
+Vue.version = '2.5.22';
 
 /*  */
 
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 20f2ef0cfc1..3475ed5539e 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 /*  */
@@ -618,7 +618,7 @@ if (process.env.NODE_ENV !== 'production') {
       ? vm.options
       : vm._isVue
         ? vm.$options || vm.constructor.options
-        : vm || {};
+        : vm;
     var name = options.name || options._componentTag;
     var file = options.__file;
     if (!name && file) {
@@ -713,9 +713,9 @@ Dep.prototype.notify = function notify () {
   }
 };
 
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
 Dep.target = null;
 var targetStack = [];
 
@@ -1243,13 +1243,26 @@ function mergeHook (
   parentVal,
   childVal
 ) {
-  return childVal
+  var res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
-    : parentVal
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1485,7 +1498,7 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  
+
   // Apply extends and mixins on the child options,
   // but only if it is a raw options object that isn't
   // the result of another mergeOptions call.
@@ -2420,6 +2433,8 @@ function resolveAsyncComponent (
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
         forceRender(true);
+      } else {
+        contexts.length = 0;
       }
     });
 
@@ -2587,8 +2602,8 @@ function eventsMixin (Vue) {
     }
     // array of events
     if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
       }
       return vm
     }
@@ -2601,16 +2616,14 @@ function eventsMixin (Vue) {
       vm._events[event] = null;
       return vm
     }
-    if (fn) {
-      // specific handler
-      var cb;
-      var i$1 = cbs.length;
-      while (i$1--) {
-        cb = cbs[i$1];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i$1, 1);
-          break
-        }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
       }
     }
     return vm
@@ -4780,36 +4793,16 @@ function resolveConstructorOptions (Ctor) {
 function resolveModifiedOptions (Ctor) {
   var modified;
   var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
   var sealed = Ctor.sealedOptions;
   for (var key in latest) {
     if (latest[key] !== sealed[key]) {
       if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      modified[key] = latest[key];
     }
   }
   return modified
 }
 
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
 function Vue (options) {
   if (process.env.NODE_ENV !== 'production' &&
     !(this instanceof Vue)
@@ -5178,7 +5171,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.21';
+Vue.version = '2.5.22';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index e67692e0e12..8e7d61092a9 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
@@ -624,7 +624,7 @@
         ? vm.options
         : vm._isVue
           ? vm.$options || vm.constructor.options
-          : vm || {};
+          : vm;
       var name = options.name || options._componentTag;
       var file = options.__file;
       if (!name && file) {
@@ -719,9 +719,9 @@
     }
   };
 
-  // the current target watcher being evaluated.
-  // this is globally unique because there could be only one
-  // watcher being evaluated at any time.
+  // The current target watcher being evaluated.
+  // This is globally unique because only one watcher
+  // can be evaluated at a time.
   Dep.target = null;
   var targetStack = [];
 
@@ -1247,13 +1247,26 @@
     parentVal,
     childVal
   ) {
-    return childVal
+    var res = childVal
       ? parentVal
         ? parentVal.concat(childVal)
         : Array.isArray(childVal)
           ? childVal
           : [childVal]
-      : parentVal
+      : parentVal;
+    return res
+      ? dedupeHooks(res)
+      : res
+  }
+
+  function dedupeHooks (hooks) {
+    var res = [];
+    for (var i = 0; i < hooks.length; i++) {
+      if (res.indexOf(hooks[i]) === -1) {
+        res.push(hooks[i]);
+      }
+    }
+    return res
   }
 
   LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1489,7 +1502,7 @@
     normalizeProps(child, vm);
     normalizeInject(child, vm);
     normalizeDirectives(child);
-    
+
     // Apply extends and mixins on the child options,
     // but only if it is a raw options object that isn't
     // the result of another mergeOptions call.
@@ -2420,6 +2433,8 @@
         // (async resolves are shimmed as synchronous during SSR)
         if (!sync) {
           forceRender(true);
+        } else {
+          contexts.length = 0;
         }
       });
 
@@ -2585,8 +2600,8 @@
       }
       // array of events
       if (Array.isArray(event)) {
-        for (var i = 0, l = event.length; i < l; i++) {
-          vm.$off(event[i], fn);
+        for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+          vm.$off(event[i$1], fn);
         }
         return vm
       }
@@ -2599,16 +2614,14 @@
         vm._events[event] = null;
         return vm
       }
-      if (fn) {
-        // specific handler
-        var cb;
-        var i$1 = cbs.length;
-        while (i$1--) {
-          cb = cbs[i$1];
-          if (cb === fn || cb.fn === fn) {
-            cbs.splice(i$1, 1);
-            break
-          }
+      // specific handler
+      var cb;
+      var i = cbs.length;
+      while (i--) {
+        cb = cbs[i];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i, 1);
+          break
         }
       }
       return vm
@@ -4765,36 +4778,16 @@
   function resolveModifiedOptions (Ctor) {
     var modified;
     var latest = Ctor.options;
-    var extended = Ctor.extendOptions;
     var sealed = Ctor.sealedOptions;
     for (var key in latest) {
       if (latest[key] !== sealed[key]) {
         if (!modified) { modified = {}; }
-        modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+        modified[key] = latest[key];
       }
     }
     return modified
   }
 
-  function dedupe (latest, extended, sealed) {
-    // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-    // between merges
-    if (Array.isArray(latest)) {
-      var res = [];
-      sealed = Array.isArray(sealed) ? sealed : [sealed];
-      extended = Array.isArray(extended) ? extended : [extended];
-      for (var i = 0; i < latest.length; i++) {
-        // push original options and not sealed options to exclude duplicated options
-        if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-          res.push(latest[i]);
-        }
-      }
-      return res
-    } else {
-      return latest
-    }
-  }
-
   function Vue (options) {
     if (!(this instanceof Vue)
     ) {
@@ -5162,7 +5155,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.21';
+  Vue.version = '2.5.22';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 59b53bcb098..9899fabbc24 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.21
- * (c) 2014-2018 Evan You
+ * Vue.js v2.5.22
+ * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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o=n._parentListeners;for(var i in o)e[g(i)]=o[i];return e}function co(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var uo=function(t){return t.tag||ie(t)},lo=function(t){return"show"===t.name},fo={name:"transition",props:io,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(uo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=ao(i);if(!a)return i;if(this._leaving)return co(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=so(this),u=this._vnode,l=ao(u);if(a.data.directives&&a.data.directives.some(lo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!ie(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=$({},c);if("out-in"===r)return this._leaving=!0,te(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),co(t,i);if("in-out"===r){if(ie(a))return u;var p,d=function(){p()};te(c,"afterEnter",d),te(c,"enterCancelled",d),te(f,"delayLeave",function(t){p=t})}}return i}}},po=$({tag:String,moveClass:String},io);function vo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function ho(t){t.data.newPos=t.elm.getBoundingClientRect()}function mo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete po.mode;var yo={Transition:fo,TransitionGroup:{props:po,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=he(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=so(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(vo),t.forEach(ho),t.forEach(mo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Lr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Ir,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Ir,t),n._moveCb=null,Mr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Or)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){$r(n,t)}),Ar(n,e),n.style.display="none",this.$el.appendChild(n);var r=Ur(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return cn.config.mustUseProp=function(t,e,n){return"value"===n&&yn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},cn.config.isReservedTag=In,cn.config.isReservedAttr=mn,cn.config.getTagNamespace=function(t){return En(t)?"svg":"math"===t?"math":void 0},cn.config.isUnknownElement=function(t){if(!U)return!0;if(In(t))return!1;if(t=t.toLowerCase(),null!=Tn[t])return Tn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Tn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Tn[t]=/HTMLUnknownElement/.test(e.toString())},$(cn.options.directives,oo),$(cn.options.components,yo),cn.prototype.__patch__=U?Xr:k,cn.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=lt),ge(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Oe(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&ge(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,ge(t,"mounted")),t}(this,t=t&&U?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},U&&setTimeout(function(){P.devtools&&Q&&Q.emit("init",cn)},0),cn});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 080e3a65eaa..690dd5e30b0 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -848,7 +848,7 @@
         ? vm.options
         : vm._isVue
           ? vm.$options || vm.constructor.options
-          : vm || {};
+          : vm;
       var name = options.name || options._componentTag;
       var file = options.__file;
       if (!name && file) {
@@ -937,9 +937,9 @@
     }
   };
 
-  // the current target watcher being evaluated.
-  // this is globally unique because there could be only one
-  // watcher being evaluated at any time.
+  // The current target watcher being evaluated.
+  // This is globally unique because only one watcher
+  // can be evaluated at a time.
   Dep.target = null;
   var targetStack = [];
 
@@ -1345,13 +1345,26 @@
     parentVal,
     childVal
   ) {
-    return childVal
+    var res = childVal
       ? parentVal
         ? parentVal.concat(childVal)
         : Array.isArray(childVal)
           ? childVal
           : [childVal]
-      : parentVal
+      : parentVal;
+    return res
+      ? dedupeHooks(res)
+      : res
+  }
+
+  function dedupeHooks (hooks) {
+    var res = [];
+    for (var i = 0; i < hooks.length; i++) {
+      if (res.indexOf(hooks[i]) === -1) {
+        res.push(hooks[i]);
+      }
+    }
+    return res
   }
 
   LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1587,7 +1600,7 @@
     normalizeProps(child, vm);
     normalizeInject(child, vm);
     normalizeDirectives(child);
-    
+
     // Apply extends and mixins on the child options,
     // but only if it is a raw options object that isn't
     // the result of another mergeOptions call.
@@ -5603,7 +5616,11 @@
       } else if (c.type === 2) {
         segments.push({ type: INTERPOLATION, value: c.expression });
       } else if (c.type === 3) {
-        segments.push({ type: RAW, value: escape(c.text) });
+        var text = escape(c.text);
+        if (c.isComment) {
+          text = '<!--' + text + '-->';
+        }
+        segments.push({ type: RAW, value: text });
       }
     }
     return segments
@@ -6418,6 +6435,8 @@
         // (async resolves are shimmed as synchronous during SSR)
         if (!sync) {
           forceRender(true);
+        } else {
+          contexts.length = 0;
         }
       });
 
@@ -7198,36 +7217,16 @@
   function resolveModifiedOptions (Ctor) {
     var modified;
     var latest = Ctor.options;
-    var extended = Ctor.extendOptions;
     var sealed = Ctor.sealedOptions;
     for (var key in latest) {
       if (latest[key] !== sealed[key]) {
         if (!modified) { modified = {}; }
-        modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+        modified[key] = latest[key];
       }
     }
     return modified
   }
 
-  function dedupe (latest, extended, sealed) {
-    // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-    // between merges
-    if (Array.isArray(latest)) {
-      var res = [];
-      sealed = Array.isArray(sealed) ? sealed : [sealed];
-      extended = Array.isArray(extended) ? extended : [extended];
-      for (var i = 0; i < latest.length; i++) {
-        // push original options and not sealed options to exclude duplicated options
-        if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-          res.push(latest[i]);
-        }
-      }
-      return res
-    } else {
-      return latest
-    }
-  }
-
   /*  */
 
   function FunctionalRenderContext (
diff --git a/packages/vue-server-renderer/build.js b/packages/vue-server-renderer/build.js
index fc072297dbe..56f3a976507 100644
--- a/packages/vue-server-renderer/build.js
+++ b/packages/vue-server-renderer/build.js
@@ -850,7 +850,7 @@ if (process.env.NODE_ENV !== 'production') {
       ? vm.options
       : vm._isVue
         ? vm.$options || vm.constructor.options
-        : vm || {};
+        : vm;
     var name = options.name || options._componentTag;
     var file = options.__file;
     if (!name && file) {
@@ -945,9 +945,9 @@ Dep.prototype.notify = function notify () {
   }
 };
 
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
 Dep.target = null;
 var targetStack = [];
 
@@ -1354,13 +1354,26 @@ function mergeHook (
   parentVal,
   childVal
 ) {
-  return childVal
+  var res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
-    : parentVal
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -1596,7 +1609,7 @@ function mergeOptions (
   normalizeProps(child, vm);
   normalizeInject(child, vm);
   normalizeDirectives(child);
-  
+
   // Apply extends and mixins on the child options,
   // but only if it is a raw options object that isn't
   // the result of another mergeOptions call.
@@ -5369,7 +5382,11 @@ function nodesToSegments (
     } else if (c.type === 2) {
       segments.push({ type: INTERPOLATION, value: c.expression });
     } else if (c.type === 3) {
-      segments.push({ type: RAW, value: escape(c.text) });
+      var text = escape(c.text);
+      if (c.isComment) {
+        text = '<!--' + text + '-->';
+      }
+      segments.push({ type: RAW, value: text });
     }
   }
   return segments
@@ -6184,6 +6201,8 @@ function resolveAsyncComponent (
       // (async resolves are shimmed as synchronous during SSR)
       if (!sync) {
         forceRender(true);
+      } else {
+        contexts.length = 0;
       }
     });
 
@@ -6970,36 +6989,16 @@ function resolveConstructorOptions (Ctor) {
 function resolveModifiedOptions (Ctor) {
   var modified;
   var latest = Ctor.options;
-  var extended = Ctor.extendOptions;
   var sealed = Ctor.sealedOptions;
   for (var key in latest) {
     if (latest[key] !== sealed[key]) {
       if (!modified) { modified = {}; }
-      modified[key] = dedupe(latest[key], extended[key], sealed[key]);
+      modified[key] = latest[key];
     }
   }
   return modified
 }
 
-function dedupe (latest, extended, sealed) {
-  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
-  // between merges
-  if (Array.isArray(latest)) {
-    var res = [];
-    sealed = Array.isArray(sealed) ? sealed : [sealed];
-    extended = Array.isArray(extended) ? extended : [extended];
-    for (var i = 0; i < latest.length; i++) {
-      // push original options and not sealed options to exclude duplicated options
-      if (extended.indexOf(latest[i]) >= 0 || sealed.indexOf(latest[i]) < 0) {
-        res.push(latest[i]);
-      }
-    }
-    return res
-  } else {
-    return latest
-  }
-}
-
 /*  */
 
 function FunctionalRenderContext (
@@ -8148,7 +8147,7 @@ TemplateRenderer.prototype.renderScripts = function renderScripts (context) {
 
         return isJS(file);
       });
-    var needed = [initial[0]].concat(async || [], initial.slice(1));
+    var needed = [initial[0]].concat(async, initial.slice(1));
     return needed.map(function (ref) {
         var file = ref.file;
 
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 2e58d0be531..2f41650e739 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.21",
+  "version": "2.5.22",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index c599dab9bdd..3c522fb2dd2 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -923,7 +923,7 @@
         ? vm.options
         : vm._isVue
           ? vm.$options || vm.constructor.options
-          : vm || {};
+          : vm;
       var name = options.name || options._componentTag;
       var file = options.__file;
       if (!name && file) {
@@ -1012,9 +1012,9 @@
     }
   };
 
-  // the current target watcher being evaluated.
-  // this is globally unique because there could be only one
-  // watcher being evaluated at any time.
+  // The current target watcher being evaluated.
+  // This is globally unique because only one watcher
+  // can be evaluated at a time.
   Dep.target = null;
 
   /*  */
@@ -1452,13 +1452,26 @@
     parentVal,
     childVal
   ) {
-    return childVal
+    var res = childVal
       ? parentVal
         ? parentVal.concat(childVal)
         : Array.isArray(childVal)
           ? childVal
           : [childVal]
-      : parentVal
+      : parentVal;
+    return res
+      ? dedupeHooks(res)
+      : res
+  }
+
+  function dedupeHooks (hooks) {
+    var res = [];
+    for (var i = 0; i < hooks.length; i++) {
+      if (res.indexOf(hooks[i]) === -1) {
+        res.push(hooks[i]);
+      }
+    }
+    return res
   }
 
   LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -5061,7 +5074,11 @@
       } else if (c.type === 2) {
         segments.push({ type: INTERPOLATION, value: c.expression });
       } else if (c.type === 3) {
-        segments.push({ type: RAW, value: escape(c.text) });
+        var text = escape(c.text);
+        if (c.isComment) {
+          text = '<!--' + text + '-->';
+        }
+        segments.push({ type: RAW, value: text });
       }
     }
     return segments
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 5d410e907e5..4be2279ef2c 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -881,7 +881,7 @@ if (process.env.NODE_ENV !== 'production') {
       ? vm.options
       : vm._isVue
         ? vm.$options || vm.constructor.options
-        : vm || {};
+        : vm;
     var name = options.name || options._componentTag;
     var file = options.__file;
     if (!name && file) {
@@ -976,9 +976,9 @@ Dep.prototype.notify = function notify () {
   }
 };
 
-// the current target watcher being evaluated.
-// this is globally unique because there could be only one
-// watcher being evaluated at any time.
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
 Dep.target = null;
 
 /*  */
@@ -1417,13 +1417,26 @@ function mergeHook (
   parentVal,
   childVal
 ) {
-  return childVal
+  var res = childVal
     ? parentVal
       ? parentVal.concat(childVal)
       : Array.isArray(childVal)
         ? childVal
         : [childVal]
-    : parentVal
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
 }
 
 LIFECYCLE_HOOKS.forEach(function (hook) {
@@ -4693,7 +4706,11 @@ function nodesToSegments (
     } else if (c.type === 2) {
       segments.push({ type: INTERPOLATION, value: c.expression });
     } else if (c.type === 3) {
-      segments.push({ type: RAW, value: escape(c.text) });
+      var text = escape(c.text);
+      if (c.isComment) {
+        text = '<!--' + text + '-->';
+      }
+      segments.push({ type: RAW, value: text });
     }
   }
   return segments
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index c742a35928d..7ef9b437835 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.21",
+  "version": "2.5.22",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 99343f9b48048c459c2021d25d25a8cbc86d2f32 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 18:18:31 -0500
Subject: [PATCH 719/911] build: release 2.5.22

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index c837ef26d5b..c48c249b250 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.21",
+  "version": "2.5.22",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 6a2994e8f07d24ff6d94507a3e8effd22e2434d9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 23:04:04 -0500
Subject: [PATCH 720/911] revert: feat: support scoped-slot usage with $slot

This reverts commit 7988a5541cd6e9a9be28b4905d69c44ddcb3878e.
---
 flow/compiler.js                              |  9 +-
 src/compiler/codegen/index.js                 |  2 +-
 src/compiler/optimizer.js                     |  3 +-
 src/compiler/parser/index.js                  | 83 ++---------------
 .../component/component-scoped-slot.spec.js   | 88 -------------------
 5 files changed, 10 insertions(+), 175 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index 509633e33ca..de1e2df9a4a 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -85,7 +85,7 @@ declare type ASTDirective = {
   end?: number;
 };
 
-declare type ASTNode = ASTElement | ASTText | ASTExpression
+declare type ASTNode = ASTElement | ASTText | ASTExpression;
 
 declare type ASTElement = {
   type: 1;
@@ -167,9 +167,6 @@ declare type ASTElement = {
 
   // weex specific
   appendAsTree?: boolean;
-
-  // 2.6 $slot check
-  has$Slot?: boolean
 };
 
 declare type ASTExpression = {
@@ -182,8 +179,6 @@ declare type ASTExpression = {
   ssrOptimizability?: number;
   start?: number;
   end?: number;
-  // 2.6 $slot check
-  has$Slot?: boolean
 };
 
 declare type ASTText = {
@@ -195,8 +190,6 @@ declare type ASTText = {
   ssrOptimizability?: number;
   start?: number;
   end?: number;
-  // 2.6 $slot check
-  has$Slot?: boolean
 };
 
 // SFC-parser related declarations
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index bdd76be0033..d09bacdf7be 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -27,7 +27,7 @@ export class CodegenState {
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData')
     this.directives = extend(extend({}, baseDirectives), options.directives)
     const isReservedTag = options.isReservedTag || no
-    this.maybeComponent = (el: ASTElement) => !!el.component || !isReservedTag(el.tag)
+    this.maybeComponent = (el: ASTElement) => el.component || !isReservedTag(el.tag)
     this.onceId = 0
     this.staticRenderFns = []
     this.pre = false
diff --git a/src/compiler/optimizer.js b/src/compiler/optimizer.js
index 39b8737b2fa..5f56e74cdee 100644
--- a/src/compiler/optimizer.js
+++ b/src/compiler/optimizer.js
@@ -30,7 +30,7 @@ export function optimize (root: ?ASTElement, options: CompilerOptions) {
 
 function genStaticKeys (keys: string): Function {
   return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap,has$Slot' +
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
     (keys ? ',' + keys : '')
   )
 }
@@ -43,7 +43,6 @@ function markStatic (node: ASTNode) {
     // 2. static slot content fails for hot-reloading
     if (
       !isPlatformReservedTag(node.tag) &&
-      !node.component &&
       node.tag !== 'slot' &&
       node.attrsMap['inline-template'] == null
     ) {
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index a9a0df9d1b7..89ea5fdc30a 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -5,7 +5,7 @@ import { parseHTML } from './html-parser'
 import { parseText } from './text-parser'
 import { parseFilters } from './filter-parser'
 import { genAssignmentCode } from '../directives/model'
-import { extend, cached, no, camelize, hyphenate, hasOwn } from 'shared/util'
+import { extend, cached, no, camelize, hyphenate } from 'shared/util'
 import { isIE, isEdge, isServerRendering } from 'core/util/env'
 
 import {
@@ -45,7 +45,6 @@ let postTransforms
 let platformIsPreTag
 let platformMustUseProp
 let platformGetTagNamespace
-let maybeComponent
 
 export function createASTElement (
   tag: string,
@@ -75,8 +74,6 @@ export function parse (
   platformIsPreTag = options.isPreTag || no
   platformMustUseProp = options.mustUseProp || no
   platformGetTagNamespace = options.getTagNamespace || no
-  const isReservedTag = options.isReservedTag || no
-  maybeComponent = (el: ASTElement) => !!el.component || !isReservedTag(el.tag)
 
   transforms = pluckModuleFunction(options.modules, 'transformNode')
   preTransforms = pluckModuleFunction(options.modules, 'preTransformNode')
@@ -102,7 +99,7 @@ export function parse (
 
   function closeElement (element) {
     if (!inVPre && !element.processed) {
-      element = processElement(element, options)
+      element = processElement(element, options, currentParent)
     }
     // tree management
     if (!stack.length && element !== root) {
@@ -156,7 +153,7 @@ export function parse (
         { start: el.start }
       )
     }
-    if (hasOwn(el.attrsMap, 'v-for')) {
+    if (el.attrsMap.hasOwnProperty('v-for')) {
       warnOnce(
         'Cannot use v-for on stateful component root element because ' +
         'it renders multiple elements.',
@@ -380,7 +377,8 @@ function processRawAttrs (el) {
 
 export function processElement (
   element: ASTElement,
-  options: CompilerOptions
+  options: CompilerOptions,
+  parent: ASTElement | undefined
 ) {
   processKey(element)
 
@@ -393,7 +391,7 @@ export function processElement (
   )
 
   processRef(element)
-  processSlot(element)
+  processSlot(element, parent)
   processComponent(element)
   for (let i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element
@@ -584,86 +582,19 @@ function processSlot (el) {
         )
       }
       el.slotScope = slotScope
-      if (process.env.NODE_ENV !== 'production' && nodeHas$Slot(el)) {
-        warn('Unepxected mixed usage of `slot-scope` and `$slot`.', el)
-      }
-    } else {
-      // 2.6 $slot support
-      // Context: https://github.com/vuejs/vue/issues/9180
-      // Ideally, all slots should be compiled as functions (this is what we
-      // are doing in 3.x), but for 2.x e want to preserve complete backwards
-      // compatibility, and maintain the exact same compilation output for any
-      // code that does not use the new syntax.
-
-      // recursively check component children for presence of `$slot` in all
-      // expressions until running into a nested child component.
-      if (maybeComponent(el) && childrenHas$Slot(el)) {
-        processScopedSlots(el)
-      }
     }
     const slotTarget = getBindingAttr(el, 'slot')
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope && !nodeHas$Slot(el)) {
+      if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'))
       }
     }
   }
 }
 
-function childrenHas$Slot (el): boolean {
-  return el.children ? el.children.some(nodeHas$Slot) : false
-}
-
-const $slotRE = /(^|[^\w_$])\$slot($|[^\w_$])/
-function nodeHas$Slot (node): boolean {
-  // caching
-  if (hasOwn(node, 'has$Slot')) {
-    return (node.has$Slot: any)
-  }
-  if (node.type === 1) { // element
-    for (const key in node.attrsMap) {
-      if (dirRE.test(key) && $slotRE.test(node.attrsMap[key])) {
-        return (node.has$Slot = true)
-      }
-    }
-    return (node.has$Slot = childrenHas$Slot(node))
-  } else if (node.type === 2) { // expression
-    // TODO more robust logic for checking $slot usage
-    return (node.has$Slot = $slotRE.test(node.expression))
-  }
-  return false
-}
-
-function processScopedSlots (el) {
-  // 1. group children by slot target
-  const groups: any = {}
-  for (let i = 0; i < el.children.length; i++) {
-    const child = el.children[i]
-    const target = child.slotTarget || '"default"'
-    if (!groups[target]) {
-      groups[target] = []
-    }
-    groups[target].push(child)
-  }
-  // 2. for each slot group, check if the group contains $slot
-  for (const name in groups) {
-    const group = groups[name]
-    if (group.some(nodeHas$Slot)) {
-      // 3. if a group contains $slot, all nodes in that group gets assigned
-      // as a scoped slot to el and removed from children
-      el.plain = false
-      const slots = el.scopedSlots || (el.scopedSlots = {})
-      const slotContainer = slots[name] = createASTElement('template', [], el)
-      slotContainer.children = group
-      slotContainer.slotScope = '$slot'
-      el.children = el.children.filter(c => group.indexOf(c) === -1)
-    }
-  }
-}
-
 function processComponent (el) {
   let binding
   if ((binding = getBindingAttr(el, 'is'))) {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 0956dd6604f..1e08b4d150c 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -631,92 +631,4 @@ describe('Component scoped slot', () => {
       expect(vm.$el.innerHTML).toBe('<p>hello</p>')
     }).then(done)
   })
-
-  // 2.6 $slot usage
-  describe('$slot support', () => {
-    it('should work', () => {
-      const vm = new Vue({
-        template: `<foo><div>{{$slot.foo}}</div></foo>`,
-        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`<div>hello</div>`)
-    })
-
-    it('should work for use of $slots in attributes', () => {
-      const vm = new Vue({
-        template: `<foo><div :id="$slot.foo"></div></foo>`,
-        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`<div id="hello"></div>`)
-    })
-
-    it('should work for root text nodes', () => {
-      const vm = new Vue({
-        template: `<foo>{{$slot.foo}}</foo>`,
-        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`hello`)
-    })
-
-    it('should work for mix of root text nodes and elements', () => {
-      const vm = new Vue({
-        template: `<foo>hi <div>{{ $slot.foo }}</div>{{$slot.foo}}</foo>`,
-        components: { foo: { template: `<div><slot foo="hello"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`hi <div>hello</div>hello`)
-    })
-
-    it('should work for named slots', () => {
-      const vm = new Vue({
-        template: `<foo><div slot="foo">{{ $slot.foo }}</div></foo>`,
-        components: { foo: { template: `<div><slot name="foo" foo="hello"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`<div>hello</div>`)
-    })
-
-    it('should work for mixed default and named slots', () => {
-      const vm = new Vue({
-        template: `<foo>{{ $slot.foo }}<div>{{ $slot.foo }}</div><div slot="foo">{{ $slot.foo }}</div></foo>`,
-        components: { foo: { template: `<div><slot foo="default"/><slot name="foo" foo="foo"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>foo</div>`)
-    })
-
-    it('should work for mixed $slot and non-$slot slots', () => {
-      const vm = new Vue({
-        template: `<foo>{{ $slot.foo }}<div slot="foo">static</div><div>{{ $slot.foo }}</div></foo>`,
-        components: { foo: { template: `<div><slot foo="default"/><slot name="foo"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>static</div>`)
-    })
-
-    // testing $slot detection: bracket access, using $slot alone, passing as arguments...
-    it('should work for alternative $slot usage', () => {
-      const vm = new Vue({
-        template: `<foo>{{ $slot['foo'] }}<div slot="foo">{{ $slot }}</div><div>{{ pick($slot) }}</div></foo>`,
-        methods: { pick: s => s.foo },
-        components: { foo: { template: `<div><slot foo="default"/><slot name="foo"/></div>` }}
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`default<div>default</div><div>{}</div>`)
-    })
-
-    // should not consider detection if $slot is inside longer valid identifier
-    it('should not break when template expression uses $slots', () => {
-      const vm = new Vue({
-        data: { some$slot: 123 },
-        template: `<foo>{{ some$slot }}<div slot="foo">{{ $slots }}</div></foo>`,
-        components: {
-          foo: {
-            render(h) {
-              // should be compiled as normal slots
-              expect(this.$slots.default).toBeTruthy()
-              expect(this.$slots.foo).toBeTruthy()
-              return h('div', [this.$slots.default, this.$slots.foo])
-            }
-          }
-        }
-      }).$mount()
-      expect(vm.$el.innerHTML).toBe(`123<div>{}</div>`)
-    })
-  })
 })

From 794ad0dae3bd562dc603e784d550b6707dc716b1 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 11 Jan 2019 23:09:31 -0500
Subject: [PATCH 721/911] refactor: additional tweaks after revert

---
 src/compiler/parser/index.js                               | 7 +++----
 test/unit/features/component/component-scoped-slot.spec.js | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 89ea5fdc30a..65e334d647a 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -99,7 +99,7 @@ export function parse (
 
   function closeElement (element) {
     if (!inVPre && !element.processed) {
-      element = processElement(element, options, currentParent)
+      element = processElement(element, options)
     }
     // tree management
     if (!stack.length && element !== root) {
@@ -377,8 +377,7 @@ function processRawAttrs (el) {
 
 export function processElement (
   element: ASTElement,
-  options: CompilerOptions,
-  parent: ASTElement | undefined
+  options: CompilerOptions
 ) {
   processKey(element)
 
@@ -391,7 +390,7 @@ export function processElement (
   )
 
   processRef(element)
-  processSlot(element, parent)
+  processSlot(element)
   processComponent(element)
   for (let i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 1e08b4d150c..3816e95c165 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -458,7 +458,7 @@ describe('Component scoped slot', () => {
   // new in 2.6, unifying all slots as functions
   it('non-scoped slots should also be available on $scopedSlots', () => {
     const vm = new Vue({
-      template: `<foo>before <div slot="bar">{{ $slot.msg }}</div> after</foo>`,
+      template: `<foo>before <div slot="bar" slot-scope="{ msg }">{{ msg }}</div> after</foo>`,
       components: {
         foo: {
           render(h) {

From bc97ff956e373be14b67da4c57db207c1c889706 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 12 Jan 2019 00:32:56 -0500
Subject: [PATCH 722/911] chore: reset CommonJS dist files overwritten by merge

---
 dist/vue.common.js         | 11081 +----------------------------------
 dist/vue.runtime.common.js |  8106 +------------------------
 2 files changed, 6 insertions(+), 19181 deletions(-)

diff --git a/dist/vue.common.js b/dist/vue.common.js
index 5666e41d09c..3bbc37c95fc 100644
--- a/dist/vue.common.js
+++ b/dist/vue.common.js
@@ -1,11080 +1,5 @@
-/*!
- * Vue.js v2.5.22
- * (c) 2014-2019 Evan You
- * Released under the MIT License.
- */
-'use strict';
-
-/*  */
-
-var emptyObject = Object.freeze({});
-
-// These helpers produce better VM code in JS engines due to their
-// explicitness and function inlining.
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive.
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value, e.g., [object Object].
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert an input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if an attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array.
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether an object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it,
- * e.g., PhantomJS 1.x. Technically, we don't need this anymore
- * since native bind is now performant enough in most browsers.
- * But removing it would mean breaking code that was able to run in
- * PhantomJS 1.x, so this must be kept for backward compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/* eslint-disable no-unused-vars */
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
-
-/* eslint-enable no-unused-vars */
-
-/**
- * Return the same value.
- */
-var identity = function (_) { return _; };
-
-/**
- * Generate a string containing static keys from compiler modules.
- */
-function genStaticKeys (modules) {
-  return modules.reduce(function (keys, m) {
-    return keys.concat(m.staticKeys || [])
-  }, []).join(',')
-}
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (a instanceof Date && b instanceof Date) {
-        return a.getTime() === b.getTime()
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}
-
-/**
- * Return the first index at which a loosely equal value can be
- * found in the array (if value is a plain object, the array must
- * contain an object of the same shape), or -1 if it is not present.
- */
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Perform updates asynchronously. Intended to be used by Vue Test Utils
-   * This will significantly reduce performance if set to false.
-   */
-  async: true,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
-
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
-} else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = /*@__PURE__*/(function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
-
-if (process.env.NODE_ENV !== 'production') {
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
-
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm;
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
-/*  */
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  if (process.env.NODE_ENV !== 'production' && !config.async) {
-    // subs aren't sorted in scheduler if not running async
-    // we need to sort them now to make sure they fire in correct
-    // order
-    subs.sort(function (a, b) { return a.id - b.id; });
-  }
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// The current target watcher being evaluated.
-// This is globally unique because only one watcher
-// can be evaluated at a time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (target) {
-  targetStack.push(target);
-  Dep.target = target;
-}
-
-function popTarget () {
-  targetStack.pop();
-  Dep.target = targetStack[targetStack.length - 1];
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    // #7975
-    // clone children array to avoid mutating original in case of cloning
-    // a child.
-    vnode.children && vnode.children.slice(),
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-function toggleObserving (value) {
-  shouldObserve = value;
-}
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    if (hasProto) {
-      protoAugment(value, arrayMethods);
-    } else {
-      copyAugment(value, arrayMethods, arrayKeys);
-    }
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through all properties and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment a target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment a target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive$$1 (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if (process.env.NODE_ENV !== 'production' && customSetter) {
-        customSetter();
-      }
-      // #7981: for accessor properties without setter
-      if (getter && !setter) { return }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
-  }
-  defineReactive$$1(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-if (process.env.NODE_ENV !== 'production') {
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (
-      toVal !== fromVal &&
-      isPlainObject(toVal) &&
-      isPlainObject(fromVal)
-    ) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
-    }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
-      }
-    }
-  }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      process.env.NODE_ENV !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  var res = childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal;
-  return res
-    ? dedupeHooks(res)
-    : res
-}
-
-function dedupeHooks (hooks) {
-  var res = [];
-  for (var i = 0; i < hooks.length; i++) {
-    if (res.indexOf(hooks[i]) === -1) {
-      res.push(hooks[i]);
-    }
-  }
-  return res
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  if (process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
-  }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else if (process.env.NODE_ENV !== 'production') {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-
-  // Apply extends and mixins on the child options,
-  // but only if it is a raw options object that isn't
-  // the result of another mergeOptions call.
-  // Only merged options has the _base property.
-  if (!child._base) {
-    if (child.extends) {
-      parent = mergeOptions(parent, child.extends, vm);
-    }
-    if (child.mixins) {
-      for (var i = 0, l = child.mixins.length; i < l; i++) {
-        parent = mergeOptions(parent, child.mixins[i], vm);
-      }
-    }
-  }
-
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  if (
-    process.env.NODE_ENV !== 'production' &&
-    // skip validation for weex recycle-list child component props
-    !(false)
-  ) {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if (process.env.NODE_ENV !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-
-  if (!valid) {
-    warn(
-      getInvalidTypeMessage(name, value, expectedTypes),
-      vm
-    );
-    return
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
-  }
-}
-
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
-
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
-
-function getInvalidTypeMessage (name, value, expectedTypes) {
-  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
-    " Expected " + (expectedTypes.map(capitalize).join(', '));
-  var expectedType = expectedTypes[0];
-  var receivedType = toRawType(value);
-  var expectedValue = styleValue(value, expectedType);
-  var receivedValue = styleValue(value, receivedType);
-  // check if we need to specify expected value
-  if (expectedTypes.length === 1 &&
-      isExplicable(expectedType) &&
-      !isBoolean(expectedType, receivedType)) {
-    message += " with value " + expectedValue;
-  }
-  message += ", got " + receivedType + " ";
-  // check if we need to specify received value
-  if (isExplicable(receivedType)) {
-    message += "with value " + receivedValue + ".";
-  }
-  return message
-}
-
-function styleValue (value, type) {
-  if (type === 'String') {
-    return ("\"" + value + "\"")
-  } else if (type === 'Number') {
-    return ("" + (Number(value)))
-  } else {
-    return ("" + value)
-  }
-}
-
-function isExplicable (value) {
-  var explicitTypes = ['string', 'number', 'boolean'];
-  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
-}
-
-function isBoolean () {
-  var args = [], len = arguments.length;
-  while ( len-- ) args[ len ] = arguments[ len ];
-
-  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
+if (process.env.NODE_ENV === 'production') {
+  module.exports = require('./vue.common.prod.js')
 } else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;
-    }
-  })
-}
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
-/*  */
-
-var mark;
-var measure;
-
-if (process.env.NODE_ENV !== 'production') {
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-var initProxy;
-
-if (process.env.NODE_ENV !== 'production') {
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
-
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
-
-  var warnReservedPrefix = function (target, key) {
-    warn(
-      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
-      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
-      'See: https://vuejs.org/v2/api/#data',
-      target
-    );
-  };
-
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
-      }
-    });
-  }
-
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) ||
-        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
-      if (!has && !isAllowed) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-var seenObjects = new _Set();
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  createOnceHandler,
-  vm
-) {
-  var name, def$$1, cur, old, event;
-  for (name in on) {
-    def$$1 = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      if (isTrue(event.once)) {
-        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
-      }
-      add(event.name, cur, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  var invoker;
-  var oldHook = def[hookKey];
-
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      if (process.env.NODE_ENV !== 'production') {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res
-}
-
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      } else {
-        contexts.length = 0;
-      }
-    });
-
-    var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                process.env.NODE_ENV !== 'production'
-                  ? ("timeout (" + (res.timeout) + "ms)")
-                  : null
-              );
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
-  }
-}
-
-/*  */
-
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
-/*  */
-
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        vm.$off(event[i$1], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    if (process.env.NODE_ENV !== 'production') {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
-      }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
-      }
-    }
-    return vm
-  };
-}
-
-/*  */
-
-
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
-  }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
-}
-
-function initLifecycle (vm) {
-  var options = vm.$options;
-
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    if (process.env.NODE_ENV !== 'production') {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
-      }
-    }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
-
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
-  }
-  return false
-}
-
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
-
-/*  */
-
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (process.env.NODE_ENV !== 'production' && !config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-
-
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
-    }
-    this.active = false;
-  }
-};
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
-      }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    } else {
-      defineReactive$$1(props, key, value);
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
-
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    process.env.NODE_ENV !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
-
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production' && getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else if (process.env.NODE_ENV !== 'production') {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
-  }
-}
-
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
-}
-
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
-      }
-    }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
-
-/*  */
-
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
-
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      } else {
-        defineReactive$$1(vm, key, result[key]);
-      }
-    });
-    toggleObserving(true);
-  }
-}
-
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else if (process.env.NODE_ENV !== 'production') {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
-    }
-    return result
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
-  }
-
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  var vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-    }
-    return res
-  }
-}
-
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (process.env.NODE_ENV !== 'production') {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
-  } else {
-    on[event] = callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
-    }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
-  }
-}
-
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
-
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-var uid$3 = 0;
-
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
-    }
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      initProxy(vm);
-    } else {
-      vm._renderProxy = vm;
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = latest[key];
-    }
-  }
-  return modified
-}
-
-function Vue (options) {
-  if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
-
-/*  */
-
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
-
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
-
-/*  */
-
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
-
-/*  */
-
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
-
-    var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production' && name) {
-      validateComponentName(name);
-    }
-
-    var Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
-
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
-
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production' && type === 'component') {
-          validateComponentName(id);
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
-    };
-  });
-}
-
-/*  */
-
-
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-
-  destroyed: function destroyed () {
-    for (var key in this.cache) {
-      pruneCacheEntry(this.cache, key, this.keys);
-    }
-  },
-
-  mounted: function mounted () {
-    var this$1 = this;
-
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
-
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-};
-
-var builtInComponents = {
-  KeepAlive: KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  if (process.env.NODE_ENV !== 'production') {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue);
-
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
-  }
-});
-
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.22';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-var xlinkNS = 'http://www.w3.org/1999/xlink';
-
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
-
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
-
-/*  */
-
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class)
-}
-
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
-
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isPreTag = function (tag) { return tag === 'pre'; };
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
-  }
-  if (isReservedTag(tag)) {
-    return false
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-  }
-}
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
-  }
-}
-
-/*  */
-
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-var nodeOps = /*#__PURE__*/Object.freeze({
-  createElement: createElement$1,
-  createElementNS: createElementNS,
-  createTextNode: createTextNode,
-  createComment: createComment,
-  insertBefore: insertBefore,
-  removeChild: removeChild,
-  appendChild: appendChild,
-  parentNode: parentNode,
-  nextSibling: nextSibling,
-  tagName: tagName,
-  setTextContent: setTextContent,
-  setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
-
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
-
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
-
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
-  }
-  return map
-}
-
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
-
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
-
-  function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove$$1.listeners = listeners;
-    return remove$$1
-  }
-
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
-
-  var creatingElmInVPre = 0;
-
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
-
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
-      }
-    }
-  }
-
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (nodeOps.parentNode(ref$$1) === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      if (process.env.NODE_ENV !== 'production') {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
-    }
-  }
-
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag)
-  }
-
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
-        }
-        ancestor = ancestor.parent;
-      }
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
-
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
-
-    if (process.env.NODE_ENV !== 'production') {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
-        }
-      }
-    }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
-  }
-
-  function patchVnode (
-    oldVnode,
-    vnode,
-    insertedVnodeQueue,
-    ownerArray,
-    index,
-    removeOnly
-  ) {
-    if (oldVnode === vnode) {
-      return
-    }
-
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // clone reused vnode
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    var elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
-
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        if (process.env.NODE_ENV !== 'production') {
-          checkDuplicateKeys(ch);
-        }
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
-    }
-  }
-
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
-            }
-          }
-        }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true
-  }
-
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
-    }
-  }
-
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
-      return
-    }
-
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else if (process.env.NODE_ENV !== 'production') {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
-
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
-
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-            ancestor = ancestor.parent;
-          }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
-  }
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  // $flow-disable-line
-  return res
-}
-
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
-
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
-    }
-  }
-}
-
-var baseModules = [
-  ref,
-  directives
-];
-
-/*  */
-
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    baseSetAttr(el, key, value);
-  }
-}
-
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-    /* istanbul ignore if */
-    if (
-      isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
-    ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
-    }
-    el.setAttribute(key, value);
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-var validDivisionCharRE = /[\w).+\-_$\]]/;
-
-function parseFilters (exp) {
-  var inSingle = false;
-  var inDouble = false;
-  var inTemplateString = false;
-  var inRegex = false;
-  var curly = 0;
-  var square = 0;
-  var paren = 0;
-  var lastFilterIndex = 0;
-  var c, prev, i, expression, filters;
-
-  for (i = 0; i < exp.length; i++) {
-    prev = c;
-    c = exp.charCodeAt(i);
-    if (inSingle) {
-      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
-    } else if (inDouble) {
-      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
-    } else if (inTemplateString) {
-      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
-    } else if (inRegex) {
-      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
-    } else if (
-      c === 0x7C && // pipe
-      exp.charCodeAt(i + 1) !== 0x7C &&
-      exp.charCodeAt(i - 1) !== 0x7C &&
-      !curly && !square && !paren
-    ) {
-      if (expression === undefined) {
-        // first filter, end of expression
-        lastFilterIndex = i + 1;
-        expression = exp.slice(0, i).trim();
-      } else {
-        pushFilter();
-      }
-    } else {
-      switch (c) {
-        case 0x22: inDouble = true; break         // "
-        case 0x27: inSingle = true; break         // '
-        case 0x60: inTemplateString = true; break // `
-        case 0x28: paren++; break                 // (
-        case 0x29: paren--; break                 // )
-        case 0x5B: square++; break                // [
-        case 0x5D: square--; break                // ]
-        case 0x7B: curly++; break                 // {
-        case 0x7D: curly--; break                 // }
-      }
-      if (c === 0x2f) { // /
-        var j = i - 1;
-        var p = (void 0);
-        // find first non-whitespace prev char
-        for (; j >= 0; j--) {
-          p = exp.charAt(j);
-          if (p !== ' ') { break }
-        }
-        if (!p || !validDivisionCharRE.test(p)) {
-          inRegex = true;
-        }
-      }
-    }
-  }
-
-  if (expression === undefined) {
-    expression = exp.slice(0, i).trim();
-  } else if (lastFilterIndex !== 0) {
-    pushFilter();
-  }
-
-  function pushFilter () {
-    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
-    lastFilterIndex = i + 1;
-  }
-
-  if (filters) {
-    for (i = 0; i < filters.length; i++) {
-      expression = wrapFilter(expression, filters[i]);
-    }
-  }
-
-  return expression
-}
-
-function wrapFilter (exp, filter) {
-  var i = filter.indexOf('(');
-  if (i < 0) {
-    // _f: resolveFilter
-    return ("_f(\"" + filter + "\")(" + exp + ")")
-  } else {
-    var name = filter.slice(0, i);
-    var args = filter.slice(i + 1);
-    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
-  }
-}
-
-/*  */
-
-function baseWarn (msg) {
-  console.error(("[Vue compiler]: " + msg));
-}
-
-function pluckModuleFunction (
-  modules,
-  key
-) {
-  return modules
-    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
-    : []
-}
-
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
-  el.plain = false;
-}
-
-// add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
-  el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
-}
-
-function addDirective (
-  el,
-  name,
-  rawName,
-  value,
-  arg,
-  modifiers
-) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
-  el.plain = false;
-}
-
-function addHandler (
-  el,
-  name,
-  value,
-  modifiers,
-  important,
-  warn
-) {
-  modifiers = modifiers || emptyObject;
-  // warn prevent and passive modifier
-  /* istanbul ignore if */
-  if (
-    process.env.NODE_ENV !== 'production' && warn &&
-    modifiers.prevent && modifiers.passive
-  ) {
-    warn(
-      'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
-    );
-  }
-
-  // normalize click.right and click.middle since they don't actually fire
-  // this is technically browser-specific, but at least for now browsers are
-  // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
-      name = 'contextmenu';
-      delete modifiers.right;
-    } else if (modifiers.middle) {
-      name = 'mouseup';
-    }
-  }
-
-  // check capture modifier
-  if (modifiers.capture) {
-    delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
-  }
-  if (modifiers.once) {
-    delete modifiers.once;
-    name = '~' + name; // mark the event as once
-  }
-  /* istanbul ignore if */
-  if (modifiers.passive) {
-    delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
-  }
-
-  var events;
-  if (modifiers.native) {
-    delete modifiers.native;
-    events = el.nativeEvents || (el.nativeEvents = {});
-  } else {
-    events = el.events || (el.events = {});
-  }
-
-  var newHandler = {
-    value: value.trim()
-  };
-  if (modifiers !== emptyObject) {
-    newHandler.modifiers = modifiers;
-  }
-
-  var handlers = events[name];
-  /* istanbul ignore if */
-  if (Array.isArray(handlers)) {
-    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
-  } else if (handlers) {
-    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
-  } else {
-    events[name] = newHandler;
-  }
-
-  el.plain = false;
-}
-
-function getBindingAttr (
-  el,
-  name,
-  getStatic
-) {
-  var dynamicValue =
-    getAndRemoveAttr(el, ':' + name) ||
-    getAndRemoveAttr(el, 'v-bind:' + name);
-  if (dynamicValue != null) {
-    return parseFilters(dynamicValue)
-  } else if (getStatic !== false) {
-    var staticValue = getAndRemoveAttr(el, name);
-    if (staticValue != null) {
-      return JSON.stringify(staticValue)
-    }
-  }
-}
-
-// note: this only removes the attr from the Array (attrsList) so that it
-// doesn't get processed by processAttrs.
-// By default it does NOT remove it from the map (attrsMap) because the map is
-// needed during codegen.
-function getAndRemoveAttr (
-  el,
-  name,
-  removeFromMap
-) {
-  var val;
-  if ((val = el.attrsMap[name]) != null) {
-    var list = el.attrsList;
-    for (var i = 0, l = list.length; i < l; i++) {
-      if (list[i].name === name) {
-        list.splice(i, 1);
-        break
-      }
-    }
-  }
-  if (removeFromMap) {
-    delete el.attrsMap[name];
-  }
-  return val
-}
-
-/*  */
-
-/**
- * Cross-platform code generation for component v-model
- */
-function genComponentModel (
-  el,
-  value,
-  modifiers
-) {
-  var ref = modifiers || {};
-  var number = ref.number;
-  var trim = ref.trim;
-
-  var baseValueExpression = '$$v';
-  var valueExpression = baseValueExpression;
-  if (trim) {
-    valueExpression =
-      "(typeof " + baseValueExpression + " === 'string'" +
-      "? " + baseValueExpression + ".trim()" +
-      ": " + baseValueExpression + ")";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-  var assignment = genAssignmentCode(value, valueExpression);
-
-  el.model = {
-    value: ("(" + value + ")"),
-    expression: JSON.stringify(value),
-    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
-  };
-}
-
-/**
- * Cross-platform codegen helper for generating v-model value assignment code.
- */
-function genAssignmentCode (
-  value,
-  assignment
-) {
-  var res = parseModel(value);
-  if (res.key === null) {
-    return (value + "=" + assignment)
-  } else {
-    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
-  }
-}
-
-/**
- * Parse a v-model expression into a base path and a final key segment.
- * Handles both dot-path and possible square brackets.
- *
- * Possible cases:
- *
- * - test
- * - test[key]
- * - test[test1[key]]
- * - test["a"][key]
- * - xxx.test[a[a].test1[key]]
- * - test.xxx.a["asa"][test1[key]]
- *
- */
-
-var len, str, chr, index$1, expressionPos, expressionEndPos;
-
-
-
-function parseModel (val) {
-  // Fix https://github.com/vuejs/vue/pull/7730
-  // allow v-model="obj.val " (trailing whitespace)
-  val = val.trim();
-  len = val.length;
-
-  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
-    index$1 = val.lastIndexOf('.');
-    if (index$1 > -1) {
-      return {
-        exp: val.slice(0, index$1),
-        key: '"' + val.slice(index$1 + 1) + '"'
-      }
-    } else {
-      return {
-        exp: val,
-        key: null
-      }
-    }
-  }
-
-  str = val;
-  index$1 = expressionPos = expressionEndPos = 0;
-
-  while (!eof()) {
-    chr = next();
-    /* istanbul ignore if */
-    if (isStringStart(chr)) {
-      parseString(chr);
-    } else if (chr === 0x5B) {
-      parseBracket(chr);
-    }
-  }
-
-  return {
-    exp: val.slice(0, expressionPos),
-    key: val.slice(expressionPos + 1, expressionEndPos)
-  }
-}
-
-function next () {
-  return str.charCodeAt(++index$1)
-}
-
-function eof () {
-  return index$1 >= len
-}
-
-function isStringStart (chr) {
-  return chr === 0x22 || chr === 0x27
-}
-
-function parseBracket (chr) {
-  var inBracket = 1;
-  expressionPos = index$1;
-  while (!eof()) {
-    chr = next();
-    if (isStringStart(chr)) {
-      parseString(chr);
-      continue
-    }
-    if (chr === 0x5B) { inBracket++; }
-    if (chr === 0x5D) { inBracket--; }
-    if (inBracket === 0) {
-      expressionEndPos = index$1;
-      break
-    }
-  }
-}
-
-function parseString (chr) {
-  var stringQuote = chr;
-  while (!eof()) {
-    chr = next();
-    if (chr === stringQuote) {
-      break
-    }
-  }
-}
-
-/*  */
-
-var warn$1;
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-function model (
-  el,
-  dir,
-  _warn
-) {
-  warn$1 = _warn;
-  var value = dir.value;
-  var modifiers = dir.modifiers;
-  var tag = el.tag;
-  var type = el.attrsMap.type;
-
-  if (process.env.NODE_ENV !== 'production') {
-    // inputs with type="file" are read only and setting the input's
-    // value will throw an error.
-    if (tag === 'input' && type === 'file') {
-      warn$1(
-        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
-      );
-    }
-  }
-
-  if (el.component) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (tag === 'select') {
-    genSelect(el, value, modifiers);
-  } else if (tag === 'input' && type === 'checkbox') {
-    genCheckboxModel(el, value, modifiers);
-  } else if (tag === 'input' && type === 'radio') {
-    genRadioModel(el, value, modifiers);
-  } else if (tag === 'input' || tag === 'textarea') {
-    genDefaultModel(el, value, modifiers);
-  } else if (!config.isReservedTag(tag)) {
-    genComponentModel(el, value, modifiers);
-    // component v-model doesn't need extra runtime
-    return false
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$1(
-      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-      "v-model is not supported on this element type. " +
-      'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
-    );
-  }
-
-  // ensure runtime directive metadata
-  return true
-}
-
-function genCheckboxModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
-  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
-  addProp(el, 'checked',
-    "Array.isArray(" + value + ")" +
-    "?_i(" + value + "," + valueBinding + ")>-1" + (
-      trueValueBinding === 'true'
-        ? (":(" + value + ")")
-        : (":_q(" + value + "," + trueValueBinding + ")")
-    )
-  );
-  addHandler(el, 'change',
-    "var $$a=" + value + "," +
-        '$$el=$event.target,' +
-        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
-    'if(Array.isArray($$a)){' +
-      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
-          '$$i=_i($$a,$$v);' +
-      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
-      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
-    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
-    null, true
-  );
-}
-
-function genRadioModel (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var valueBinding = getBindingAttr(el, 'value') || 'null';
-  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
-  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
-  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
-}
-
-function genSelect (
-  el,
-  value,
-  modifiers
-) {
-  var number = modifiers && modifiers.number;
-  var selectedVal = "Array.prototype.filter" +
-    ".call($event.target.options,function(o){return o.selected})" +
-    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
-    "return " + (number ? '_n(val)' : 'val') + "})";
-
-  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
-  var code = "var $$selectedVal = " + selectedVal + ";";
-  code = code + " " + (genAssignmentCode(value, assignment));
-  addHandler(el, 'change', code, null, true);
-}
-
-function genDefaultModel (
-  el,
-  value,
-  modifiers
-) {
-  var type = el.attrsMap.type;
-
-  // warn if v-bind:value conflicts with v-model
-  // except for inputs with v-bind:type
-  if (process.env.NODE_ENV !== 'production') {
-    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
-    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
-    if (value$1 && !typeBinding) {
-      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
-      warn$1(
-        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
-      );
-    }
-  }
-
-  var ref = modifiers || {};
-  var lazy = ref.lazy;
-  var number = ref.number;
-  var trim = ref.trim;
-  var needCompositionGuard = !lazy && type !== 'range';
-  var event = lazy
-    ? 'change'
-    : type === 'range'
-      ? RANGE_TOKEN
-      : 'input';
-
-  var valueExpression = '$event.target.value';
-  if (trim) {
-    valueExpression = "$event.target.value.trim()";
-  }
-  if (number) {
-    valueExpression = "_n(" + valueExpression + ")";
-  }
-
-  var code = genAssignmentCode(value, valueExpression);
-  if (needCompositionGuard) {
-    code = "if($event.target.composing)return;" + code;
-  }
-
-  addProp(el, 'value', ("(" + value + ")"));
-  addHandler(el, event, code, null, true);
-  if (trim || number) {
-    addHandler(el, 'blur', '$forceUpdate()');
-  }
-}
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler$1 (event, handler, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
-    }
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res
-}
-
-/*  */
-
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-var vendorNames = ['Webkit', 'Moz', 'ms'];
-
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
-
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
-  }
-
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
-
-  var style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
-
-  var newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-var whitespaceRE = /\s+/;
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition (def$$1) {
-  if (!def$$1) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
-    var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
-    }
-    extend(res, def$$1);
-    return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
-
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  // JSDOM may return undefined for transition properties
-  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
-  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
-  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
-// in a locale-dependent way, using a comma instead of a dot.
-// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
-// as a floor function) causing unexpected behaviors
-function toMs (s) {
-  return Number(s.slice(0, -1).replace(',', '.')) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
-
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave (vnode, rm) {
-  var el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show && el.parentNode) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
-            }
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
-
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
-
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: directive,
-  show: show
-};
-
-/*  */
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
-
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data
-}
-
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
-
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
-  }
-}
-
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
-
-var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
-
-var isVShowDirective = function (d) { return d.name === 'show'; };
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render: function render (h) {
-    var this$1 = this;
-
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(isNotTextNode);
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
-
-    // warn multiple elements
-    if (process.env.NODE_ENV !== 'production' && children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
-
-    var mode = this.mode;
-
-    // warn invalid mode
-    if (process.env.NODE_ENV !== 'production' &&
-      mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
-
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
-
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
-      child.data.show = true;
-    }
-
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
-      }
-    }
-
-    return rawChild
-  }
-};
-
-/*  */
-
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props: props,
-
-  beforeMount: function beforeMount () {
-    var this$1 = this;
-
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      var restoreActiveInstance = setActiveInstance(this$1);
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      restoreActiveInstance();
-      update.call(this$1, vnode, hydrating);
-    };
-  },
-
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else if (process.env.NODE_ENV !== 'production') {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
-        }
-      }
-    }
-
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children)
-  },
-
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (e && e.target !== el) {
-            return
-          }
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
-    }
-  }
-};
-
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        process.env.NODE_ENV !== 'production' &&
-        process.env.NODE_ENV !== 'test' &&
-        isChrome
-      ) {
-        console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
-        );
-      }
-    }
-    if (process.env.NODE_ENV !== 'production' &&
-      process.env.NODE_ENV !== 'test' &&
-      config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
-}
-
-/*  */
-
-var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
-var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
-
-var buildRegex = cached(function (delimiters) {
-  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
-  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
-  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
-});
-
-
-
-function parseText (
-  text,
-  delimiters
-) {
-  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
-  if (!tagRE.test(text)) {
-    return
-  }
-  var tokens = [];
-  var rawTokens = [];
-  var lastIndex = tagRE.lastIndex = 0;
-  var match, index, tokenValue;
-  while ((match = tagRE.exec(text))) {
-    index = match.index;
-    // push text token
-    if (index > lastIndex) {
-      rawTokens.push(tokenValue = text.slice(lastIndex, index));
-      tokens.push(JSON.stringify(tokenValue));
-    }
-    // tag token
-    var exp = parseFilters(match[1].trim());
-    tokens.push(("_s(" + exp + ")"));
-    rawTokens.push({ '@binding': exp });
-    lastIndex = index + match[0].length;
-  }
-  if (lastIndex < text.length) {
-    rawTokens.push(tokenValue = text.slice(lastIndex));
-    tokens.push(JSON.stringify(tokenValue));
-  }
-  return {
-    expression: tokens.join('+'),
-    tokens: rawTokens
-  }
-}
-
-/*  */
-
-function transformNode (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticClass = getAndRemoveAttr(el, 'class');
-  if (process.env.NODE_ENV !== 'production' && staticClass) {
-    var res = parseText(staticClass, options.delimiters);
-    if (res) {
-      warn(
-        "class=\"" + staticClass + "\": " +
-        'Interpolation inside attributes has been removed. ' +
-        'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
-      );
-    }
-  }
-  if (staticClass) {
-    el.staticClass = JSON.stringify(staticClass);
-  }
-  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
-  if (classBinding) {
-    el.classBinding = classBinding;
-  }
-}
-
-function genData (el) {
-  var data = '';
-  if (el.staticClass) {
-    data += "staticClass:" + (el.staticClass) + ",";
-  }
-  if (el.classBinding) {
-    data += "class:" + (el.classBinding) + ",";
-  }
-  return data
-}
-
-var klass$1 = {
-  staticKeys: ['staticClass'],
-  transformNode: transformNode,
-  genData: genData
-};
-
-/*  */
-
-function transformNode$1 (el, options) {
-  var warn = options.warn || baseWarn;
-  var staticStyle = getAndRemoveAttr(el, 'style');
-  if (staticStyle) {
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      var res = parseText(staticStyle, options.delimiters);
-      if (res) {
-        warn(
-          "style=\"" + staticStyle + "\": " +
-          'Interpolation inside attributes has been removed. ' +
-          'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
-        );
-      }
-    }
-    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
-  }
-
-  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
-  if (styleBinding) {
-    el.styleBinding = styleBinding;
-  }
-}
-
-function genData$1 (el) {
-  var data = '';
-  if (el.staticStyle) {
-    data += "staticStyle:" + (el.staticStyle) + ",";
-  }
-  if (el.styleBinding) {
-    data += "style:(" + (el.styleBinding) + "),";
-  }
-  return data
-}
-
-var style$1 = {
-  staticKeys: ['staticStyle'],
-  transformNode: transformNode$1,
-  genData: genData$1
-};
-
-/*  */
-
-var decoder;
-
-var he = {
-  decode: function decode (html) {
-    decoder = decoder || document.createElement('div');
-    decoder.innerHTML = html;
-    return decoder.textContent
-  }
-};
-
-/*  */
-
-var isUnaryTag = makeMap(
-  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
-  'link,meta,param,source,track,wbr'
-);
-
-// Elements that you can, intentionally, leave open
-// (and which close themselves)
-var canBeLeftOpenTag = makeMap(
-  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
-);
-
-// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
-// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
-var isNonPhrasingTag = makeMap(
-  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
-  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
-  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
-  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
-  'title,tr,track'
-);
-
-/**
- * Not type-checking this file because it's mostly vendor code.
- */
-
-// Regular Expressions for parsing tags and attributes
-var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
-var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
-var startTagOpen = new RegExp(("^<" + qnameCapture));
-var startTagClose = /^\s*(\/?)>/;
-var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
-var doctype = /^<!DOCTYPE [^>]+>/i;
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
-var comment = /^<!\--/;
-var conditionalComment = /^<!\[/;
-
-// Special Elements (can contain anything)
-var isPlainTextElement = makeMap('script,style,textarea', true);
-var reCache = {};
-
-var decodingMap = {
-  '&lt;': '<',
-  '&gt;': '>',
-  '&quot;': '"',
-  '&amp;': '&',
-  '&#10;': '\n',
-  '&#9;': '\t'
-};
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
-
-// #5992
-var isIgnoreNewlineTag = makeMap('pre,textarea', true);
-var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
-
-function decodeAttr (value, shouldDecodeNewlines) {
-  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
-  return value.replace(re, function (match) { return decodingMap[match]; })
-}
-
-function parseHTML (html, options) {
-  var stack = [];
-  var expectHTML = options.expectHTML;
-  var isUnaryTag$$1 = options.isUnaryTag || no;
-  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
-  var index = 0;
-  var last, lastTag;
-  while (html) {
-    last = html;
-    // Make sure we're not in a plaintext content element like script/style
-    if (!lastTag || !isPlainTextElement(lastTag)) {
-      var textEnd = html.indexOf('<');
-      if (textEnd === 0) {
-        // Comment:
-        if (comment.test(html)) {
-          var commentEnd = html.indexOf('-->');
-
-          if (commentEnd >= 0) {
-            if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
-            }
-            advance(commentEnd + 3);
-            continue
-          }
-        }
-
-        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
-        if (conditionalComment.test(html)) {
-          var conditionalEnd = html.indexOf(']>');
-
-          if (conditionalEnd >= 0) {
-            advance(conditionalEnd + 2);
-            continue
-          }
-        }
-
-        // Doctype:
-        var doctypeMatch = html.match(doctype);
-        if (doctypeMatch) {
-          advance(doctypeMatch[0].length);
-          continue
-        }
-
-        // End tag:
-        var endTagMatch = html.match(endTag);
-        if (endTagMatch) {
-          var curIndex = index;
-          advance(endTagMatch[0].length);
-          parseEndTag(endTagMatch[1], curIndex, index);
-          continue
-        }
-
-        // Start tag:
-        var startTagMatch = parseStartTag();
-        if (startTagMatch) {
-          handleStartTag(startTagMatch);
-          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
-            advance(1);
-          }
-          continue
-        }
-      }
-
-      var text = (void 0), rest = (void 0), next = (void 0);
-      if (textEnd >= 0) {
-        rest = html.slice(textEnd);
-        while (
-          !endTag.test(rest) &&
-          !startTagOpen.test(rest) &&
-          !comment.test(rest) &&
-          !conditionalComment.test(rest)
-        ) {
-          // < in plain text, be forgiving and treat it as text
-          next = rest.indexOf('<', 1);
-          if (next < 0) { break }
-          textEnd += next;
-          rest = html.slice(textEnd);
-        }
-        text = html.substring(0, textEnd);
-        advance(textEnd);
-      }
-
-      if (textEnd < 0) {
-        text = html;
-        html = '';
-      }
-
-      if (options.chars && text) {
-        options.chars(text);
-      }
-    } else {
-      var endTagLength = 0;
-      var stackedTag = lastTag.toLowerCase();
-      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
-      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
-        endTagLength = endTag.length;
-        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
-          text = text
-            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
-            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
-        }
-        if (shouldIgnoreFirstNewline(stackedTag, text)) {
-          text = text.slice(1);
-        }
-        if (options.chars) {
-          options.chars(text);
-        }
-        return ''
-      });
-      index += html.length - rest$1.length;
-      html = rest$1;
-      parseEndTag(stackedTag, index - endTagLength, index);
-    }
-
-    if (html === last) {
-      options.chars && options.chars(html);
-      if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
-      }
-      break
-    }
-  }
-
-  // Clean up any remaining tags
-  parseEndTag();
-
-  function advance (n) {
-    index += n;
-    html = html.substring(n);
-  }
-
-  function parseStartTag () {
-    var start = html.match(startTagOpen);
-    if (start) {
-      var match = {
-        tagName: start[1],
-        attrs: [],
-        start: index
-      };
-      advance(start[0].length);
-      var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
-        advance(attr[0].length);
-        match.attrs.push(attr);
-      }
-      if (end) {
-        match.unarySlash = end[1];
-        advance(end[0].length);
-        match.end = index;
-        return match
-      }
-    }
-  }
-
-  function handleStartTag (match) {
-    var tagName = match.tagName;
-    var unarySlash = match.unarySlash;
-
-    if (expectHTML) {
-      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
-        parseEndTag(lastTag);
-      }
-      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
-        parseEndTag(tagName);
-      }
-    }
-
-    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
-
-    var l = match.attrs.length;
-    var attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      var args = match.attrs[i];
-      var value = args[3] || args[4] || args[5] || '';
-      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
-        ? options.shouldDecodeNewlinesForHref
-        : options.shouldDecodeNewlines;
-      attrs[i] = {
-        name: args[1],
-        value: decodeAttr(value, shouldDecodeNewlines)
-      };
-    }
-
-    if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
-      lastTag = tagName;
-    }
-
-    if (options.start) {
-      options.start(tagName, attrs, unary, match.start, match.end);
-    }
-  }
-
-  function parseEndTag (tagName, start, end) {
-    var pos, lowerCasedTagName;
-    if (start == null) { start = index; }
-    if (end == null) { end = index; }
-
-    // Find the closest opened tag of the same type
-    if (tagName) {
-      lowerCasedTagName = tagName.toLowerCase();
-      for (pos = stack.length - 1; pos >= 0; pos--) {
-        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
-          break
-        }
-      }
-    } else {
-      // If no tag name is provided, clean shop
-      pos = 0;
-    }
-
-    if (pos >= 0) {
-      // Close all the open elements, up the stack
-      for (var i = stack.length - 1; i >= pos; i--) {
-        if (process.env.NODE_ENV !== 'production' &&
-          (i > pos || !tagName) &&
-          options.warn
-        ) {
-          options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
-          );
-        }
-        if (options.end) {
-          options.end(stack[i].tag, start, end);
-        }
-      }
-
-      // Remove the open elements from the stack
-      stack.length = pos;
-      lastTag = pos && stack[pos - 1].tag;
-    } else if (lowerCasedTagName === 'br') {
-      if (options.start) {
-        options.start(tagName, [], true, start, end);
-      }
-    } else if (lowerCasedTagName === 'p') {
-      if (options.start) {
-        options.start(tagName, [], false, start, end);
-      }
-      if (options.end) {
-        options.end(tagName, start, end);
-      }
-    }
-  }
-}
-
-/*  */
-
-var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
-var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
-var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
-var stripParensRE = /^\(|\)$/g;
-
-var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
-
-var decodeHTMLCached = cached(he.decode);
-
-// configurable state
-var warn$2;
-var delimiters;
-var transforms;
-var preTransforms;
-var postTransforms;
-var platformIsPreTag;
-var platformMustUseProp;
-var platformGetTagNamespace;
-
-
-
-function createASTElement (
-  tag,
-  attrs,
-  parent
-) {
-  return {
-    type: 1,
-    tag: tag,
-    attrsList: attrs,
-    attrsMap: makeAttrsMap(attrs),
-    parent: parent,
-    children: []
-  }
-}
-
-/**
- * Convert HTML string to AST.
- */
-function parse (
-  template,
-  options
-) {
-  warn$2 = options.warn || baseWarn;
-
-  platformIsPreTag = options.isPreTag || no;
-  platformMustUseProp = options.mustUseProp || no;
-  platformGetTagNamespace = options.getTagNamespace || no;
-
-  transforms = pluckModuleFunction(options.modules, 'transformNode');
-  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
-  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
-
-  delimiters = options.delimiters;
-
-  var stack = [];
-  var preserveWhitespace = options.preserveWhitespace !== false;
-  var root;
-  var currentParent;
-  var inVPre = false;
-  var inPre = false;
-  var warned = false;
-
-  function warnOnce (msg) {
-    if (!warned) {
-      warned = true;
-      warn$2(msg);
-    }
-  }
-
-  function closeElement (element) {
-    // check pre state
-    if (element.pre) {
-      inVPre = false;
-    }
-    if (platformIsPreTag(element.tag)) {
-      inPre = false;
-    }
-    // apply post-transforms
-    for (var i = 0; i < postTransforms.length; i++) {
-      postTransforms[i](element, options);
-    }
-  }
-
-  parseHTML(template, {
-    warn: warn$2,
-    expectHTML: options.expectHTML,
-    isUnaryTag: options.isUnaryTag,
-    canBeLeftOpenTag: options.canBeLeftOpenTag,
-    shouldDecodeNewlines: options.shouldDecodeNewlines,
-    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
-    shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
-      // check namespace.
-      // inherit parent ns if there is one
-      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
-
-      // handle IE svg bug
-      /* istanbul ignore if */
-      if (isIE && ns === 'svg') {
-        attrs = guardIESVGBug(attrs);
-      }
-
-      var element = createASTElement(tag, attrs, currentParent);
-      if (ns) {
-        element.ns = ns;
-      }
-
-      if (isForbiddenTag(element) && !isServerRendering()) {
-        element.forbidden = true;
-        process.env.NODE_ENV !== 'production' && warn$2(
-          'Templates should only be responsible for mapping the state to the ' +
-          'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
-        );
-      }
-
-      // apply pre-transforms
-      for (var i = 0; i < preTransforms.length; i++) {
-        element = preTransforms[i](element, options) || element;
-      }
-
-      if (!inVPre) {
-        processPre(element);
-        if (element.pre) {
-          inVPre = true;
-        }
-      }
-      if (platformIsPreTag(element.tag)) {
-        inPre = true;
-      }
-      if (inVPre) {
-        processRawAttrs(element);
-      } else if (!element.processed) {
-        // structural directives
-        processFor(element);
-        processIf(element);
-        processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
-
-      function checkRootConstraints (el) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
-      }
-
-      // tree management
-      if (!root) {
-        root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else if (process.env.NODE_ENV !== 'production') {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
-        }
-      }
-      if (!unary) {
-        currentParent = element;
-        stack.push(element);
-      } else {
-        closeElement(element);
-      }
-    },
-
-    end: function end () {
-      // remove trailing whitespace
-      var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
-      }
-      // pop stack
-      stack.length -= 1;
-      currentParent = stack[stack.length - 1];
-      closeElement(element);
-    },
-
-    chars: function chars (text) {
-      if (!currentParent) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (text === template) {
-            warnOnce(
-              'Component template requires a root element, rather than just text.'
-            );
-          } else if ((text = text.trim())) {
-            warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
-            );
-          }
-        }
-        return
-      }
-      // IE textarea placeholder bug
-      /* istanbul ignore if */
-      if (isIE &&
-        currentParent.tag === 'textarea' &&
-        currentParent.attrsMap.placeholder === text
-      ) {
-        return
-      }
-      var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
-      if (text) {
-        var res;
-        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
-            type: 2,
-            expression: res.expression,
-            tokens: res.tokens,
-            text: text
-          });
-        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
-            type: 3,
-            text: text
-          });
-        }
-      }
-    },
-    comment: function comment (text) {
-      currentParent.children.push({
-        type: 3,
-        text: text,
-        isComment: true
-      });
-    }
-  });
-  return root
-}
-
-function processPre (el) {
-  if (getAndRemoveAttr(el, 'v-pre') != null) {
-    el.pre = true;
-  }
-}
-
-function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
-      attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
-      };
-    }
-  } else if (!el.pre) {
-    // non root node in pre blocks with no attributes
-    el.plain = true;
-  }
-}
-
-function processElement (element, options) {
-  processKey(element);
-
-  // determine whether this is a plain element after
-  // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
-
-  processRef(element);
-  processSlot(element);
-  processComponent(element);
-  for (var i = 0; i < transforms.length; i++) {
-    element = transforms[i](element, options) || element;
-  }
-  processAttrs(element);
-}
-
-function processKey (el) {
-  var exp = getBindingAttr(el, 'key');
-  if (exp) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (el.tag === 'template') {
-        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
-      }
-      if (el.for) {
-        var iterator = el.iterator2 || el.iterator1;
-        var parent = el.parent;
-        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
-          warn$2(
-            "Do not use v-for index as key on <transition-group> children, " +
-            "this is the same as not using keys."
-          );
-        }
-      }
-    }
-    el.key = exp;
-  }
-}
-
-function processRef (el) {
-  var ref = getBindingAttr(el, 'ref');
-  if (ref) {
-    el.ref = ref;
-    el.refInFor = checkInFor(el);
-  }
-}
-
-function processFor (el) {
-  var exp;
-  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
-    var res = parseFor(exp);
-    if (res) {
-      extend(el, res);
-    } else if (process.env.NODE_ENV !== 'production') {
-      warn$2(
-        ("Invalid v-for expression: " + exp)
-      );
-    }
-  }
-}
-
-
-
-function parseFor (exp) {
-  var inMatch = exp.match(forAliasRE);
-  if (!inMatch) { return }
-  var res = {};
-  res.for = inMatch[2].trim();
-  var alias = inMatch[1].trim().replace(stripParensRE, '');
-  var iteratorMatch = alias.match(forIteratorRE);
-  if (iteratorMatch) {
-    res.alias = alias.replace(forIteratorRE, '').trim();
-    res.iterator1 = iteratorMatch[1].trim();
-    if (iteratorMatch[2]) {
-      res.iterator2 = iteratorMatch[2].trim();
-    }
-  } else {
-    res.alias = alias;
-  }
-  return res
-}
-
-function processIf (el) {
-  var exp = getAndRemoveAttr(el, 'v-if');
-  if (exp) {
-    el.if = exp;
-    addIfCondition(el, {
-      exp: exp,
-      block: el
-    });
-  } else {
-    if (getAndRemoveAttr(el, 'v-else') != null) {
-      el.else = true;
-    }
-    var elseif = getAndRemoveAttr(el, 'v-else-if');
-    if (elseif) {
-      el.elseif = elseif;
-    }
-  }
-}
-
-function processIfConditions (el, parent) {
-  var prev = findPrevElement(parent.children);
-  if (prev && prev.if) {
-    addIfCondition(prev, {
-      exp: el.elseif,
-      block: el
-    });
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn$2(
-      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
-    );
-  }
-}
-
-function findPrevElement (children) {
-  var i = children.length;
-  while (i--) {
-    if (children[i].type === 1) {
-      return children[i]
-    } else {
-      if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
-        warn$2(
-          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
-        );
-      }
-      children.pop();
-    }
-  }
-}
-
-function addIfCondition (el, condition) {
-  if (!el.ifConditions) {
-    el.ifConditions = [];
-  }
-  el.ifConditions.push(condition);
-}
-
-function processOnce (el) {
-  var once$$1 = getAndRemoveAttr(el, 'v-once');
-  if (once$$1 != null) {
-    el.once = true;
-  }
-}
-
-function processSlot (el) {
-  if (el.tag === 'slot') {
-    el.slotName = getBindingAttr(el, 'name');
-    if (process.env.NODE_ENV !== 'production' && el.key) {
-      warn$2(
-        "`key` does not work on <slot> because slots are abstract outlets " +
-        "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
-      );
-    }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && slotScope) {
-        warn$2(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
-        warn$2(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
-      }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
-    }
-  }
-}
-
-function processComponent (el) {
-  var binding;
-  if ((binding = getBindingAttr(el, 'is'))) {
-    el.component = binding;
-  }
-  if (getAndRemoveAttr(el, 'inline-template') != null) {
-    el.inlineTemplate = true;
-  }
-}
-
-function processAttrs (el) {
-  var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
-  for (i = 0, l = list.length; i < l; i++) {
-    name = rawName = list[i].name;
-    value = list[i].value;
-    if (dirRE.test(name)) {
-      // mark element as dynamic
-      el.hasBindings = true;
-      // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
-        name = name.replace(modifierRE, '');
-      }
-      if (bindRE.test(name)) { // v-bind
-        name = name.replace(bindRE, '');
-        value = parseFilters(value);
-        isProp = false;
-        if (
-          process.env.NODE_ENV !== 'production' &&
-          value.trim().length === 0
-        ) {
-          warn$2(
-            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
-          );
-        }
-        if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
-            name = camelize(name);
-            if (name === 'innerHtml') { name = 'innerHTML'; }
-          }
-          if (modifiers.camel) {
-            name = camelize(name);
-          }
-          if (modifiers.sync) {
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
-            );
-          }
-        }
-        if (isProp || (
-          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
-        )) {
-          addProp(el, name, value);
-        } else {
-          addAttr(el, name, value);
-        }
-      } else if (onRE.test(name)) { // v-on
-        name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
-      } else { // normal directives
-        name = name.replace(dirRE, '');
-        // parse arg
-        var argMatch = name.match(argRE);
-        var arg = argMatch && argMatch[1];
-        if (arg) {
-          name = name.slice(0, -(arg.length + 1));
-        }
-        addDirective(el, name, rawName, value, arg, modifiers);
-        if (process.env.NODE_ENV !== 'production' && name === 'model') {
-          checkForAliasModel(el, value);
-        }
-      }
-    } else {
-      // literal attribute
-      if (process.env.NODE_ENV !== 'production') {
-        var res = parseText(value, delimiters);
-        if (res) {
-          warn$2(
-            name + "=\"" + value + "\": " +
-            'Interpolation inside attributes has been removed. ' +
-            'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
-          );
-        }
-      }
-      addAttr(el, name, JSON.stringify(value));
-      // #6887 firefox doesn't update muted state if set via attribute
-      // even immediately after element creation
-      if (!el.component &&
-          name === 'muted' &&
-          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
-      }
-    }
-  }
-}
-
-function checkInFor (el) {
-  var parent = el;
-  while (parent) {
-    if (parent.for !== undefined) {
-      return true
-    }
-    parent = parent.parent;
-  }
-  return false
-}
-
-function parseModifiers (name) {
-  var match = name.match(modifierRE);
-  if (match) {
-    var ret = {};
-    match.forEach(function (m) { ret[m.slice(1)] = true; });
-    return ret
-  }
-}
-
-function makeAttrsMap (attrs) {
-  var map = {};
-  for (var i = 0, l = attrs.length; i < l; i++) {
-    if (
-      process.env.NODE_ENV !== 'production' &&
-      map[attrs[i].name] && !isIE && !isEdge
-    ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
-    }
-    map[attrs[i].name] = attrs[i].value;
-  }
-  return map
-}
-
-// for script (e.g. type="x/template") or style, do not decode content
-function isTextTag (el) {
-  return el.tag === 'script' || el.tag === 'style'
-}
-
-function isForbiddenTag (el) {
-  return (
-    el.tag === 'style' ||
-    (el.tag === 'script' && (
-      !el.attrsMap.type ||
-      el.attrsMap.type === 'text/javascript'
-    ))
-  )
-}
-
-var ieNSBug = /^xmlns:NS\d+/;
-var ieNSPrefix = /^NS\d+:/;
-
-/* istanbul ignore next */
-function guardIESVGBug (attrs) {
-  var res = [];
-  for (var i = 0; i < attrs.length; i++) {
-    var attr = attrs[i];
-    if (!ieNSBug.test(attr.name)) {
-      attr.name = attr.name.replace(ieNSPrefix, '');
-      res.push(attr);
-    }
-  }
-  return res
-}
-
-function checkForAliasModel (el, value) {
-  var _el = el;
-  while (_el) {
-    if (_el.for && _el.alias === value) {
-      warn$2(
-        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
-        "You are binding v-model directly to a v-for iteration alias. " +
-        "This will not be able to modify the v-for source array because " +
-        "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
-      );
-    }
-    _el = _el.parent;
-  }
-}
-
-/*  */
-
-function preTransformNode (el, options) {
-  if (el.tag === 'input') {
-    var map = el.attrsMap;
-    if (!map['v-model']) {
-      return
-    }
-
-    var typeBinding;
-    if (map[':type'] || map['v-bind:type']) {
-      typeBinding = getBindingAttr(el, 'type');
-    }
-    if (!map.type && !typeBinding && map['v-bind']) {
-      typeBinding = "(" + (map['v-bind']) + ").type";
-    }
-
-    if (typeBinding) {
-      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
-      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
-      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
-      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
-      // 1. checkbox
-      var branch0 = cloneASTElement(el);
-      // process for on the main node
-      processFor(branch0);
-      addRawAttr(branch0, 'type', 'checkbox');
-      processElement(branch0, options);
-      branch0.processed = true; // prevent it from double-processed
-      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
-      addIfCondition(branch0, {
-        exp: branch0.if,
-        block: branch0
-      });
-      // 2. add radio else-if condition
-      var branch1 = cloneASTElement(el);
-      getAndRemoveAttr(branch1, 'v-for', true);
-      addRawAttr(branch1, 'type', 'radio');
-      processElement(branch1, options);
-      addIfCondition(branch0, {
-        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
-        block: branch1
-      });
-      // 3. other
-      var branch2 = cloneASTElement(el);
-      getAndRemoveAttr(branch2, 'v-for', true);
-      addRawAttr(branch2, ':type', typeBinding);
-      processElement(branch2, options);
-      addIfCondition(branch0, {
-        exp: ifCondition,
-        block: branch2
-      });
-
-      if (hasElse) {
-        branch0.else = true;
-      } else if (elseIfCondition) {
-        branch0.elseif = elseIfCondition;
-      }
-
-      return branch0
-    }
-  }
-}
-
-function cloneASTElement (el) {
-  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
-}
-
-var model$1 = {
-  preTransformNode: preTransformNode
-};
-
-var modules$1 = [
-  klass$1,
-  style$1,
-  model$1
-];
-
-/*  */
-
-function text (el, dir) {
-  if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-/*  */
-
-function html (el, dir) {
-  if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
-  }
-}
-
-var directives$1 = {
-  model: model,
-  text: text,
-  html: html
-};
-
-/*  */
-
-var baseOptions = {
-  expectHTML: true,
-  modules: modules$1,
-  directives: directives$1,
-  isPreTag: isPreTag,
-  isUnaryTag: isUnaryTag,
-  mustUseProp: mustUseProp,
-  canBeLeftOpenTag: canBeLeftOpenTag,
-  isReservedTag: isReservedTag,
-  getTagNamespace: getTagNamespace,
-  staticKeys: genStaticKeys(modules$1)
-};
-
-/*  */
-
-var isStaticKey;
-var isPlatformReservedTag;
-
-var genStaticKeysCached = cached(genStaticKeys$1);
-
-/**
- * Goal of the optimizer: walk the generated template AST tree
- * and detect sub-trees that are purely static, i.e. parts of
- * the DOM that never needs to change.
- *
- * Once we detect these sub-trees, we can:
- *
- * 1. Hoist them into constants, so that we no longer need to
- *    create fresh nodes for them on each re-render;
- * 2. Completely skip them in the patching process.
- */
-function optimize (root, options) {
-  if (!root) { return }
-  isStaticKey = genStaticKeysCached(options.staticKeys || '');
-  isPlatformReservedTag = options.isReservedTag || no;
-  // first pass: mark all non-static nodes.
-  markStatic$1(root);
-  // second pass: mark static roots.
-  markStaticRoots(root, false);
-}
-
-function genStaticKeys$1 (keys) {
-  return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
-    (keys ? ',' + keys : '')
-  )
-}
-
-function markStatic$1 (node) {
-  node.static = isStatic(node);
-  if (node.type === 1) {
-    // do not make component slot content static. this avoids
-    // 1. components not able to mutate slot nodes
-    // 2. static slot content fails for hot-reloading
-    if (
-      !isPlatformReservedTag(node.tag) &&
-      node.tag !== 'slot' &&
-      node.attrsMap['inline-template'] == null
-    ) {
-      return
-    }
-    for (var i = 0, l = node.children.length; i < l; i++) {
-      var child = node.children[i];
-      markStatic$1(child);
-      if (!child.static) {
-        node.static = false;
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        var block = node.ifConditions[i$1].block;
-        markStatic$1(block);
-        if (!block.static) {
-          node.static = false;
-        }
-      }
-    }
-  }
-}
-
-function markStaticRoots (node, isInFor) {
-  if (node.type === 1) {
-    if (node.static || node.once) {
-      node.staticInFor = isInFor;
-    }
-    // For a node to qualify as a static root, it should have children that
-    // are not just static text. Otherwise the cost of hoisting out will
-    // outweigh the benefits and it's better off to just always render it fresh.
-    if (node.static && node.children.length && !(
-      node.children.length === 1 &&
-      node.children[0].type === 3
-    )) {
-      node.staticRoot = true;
-      return
-    } else {
-      node.staticRoot = false;
-    }
-    if (node.children) {
-      for (var i = 0, l = node.children.length; i < l; i++) {
-        markStaticRoots(node.children[i], isInFor || !!node.for);
-      }
-    }
-    if (node.ifConditions) {
-      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
-        markStaticRoots(node.ifConditions[i$1].block, isInFor);
-      }
-    }
-  }
-}
-
-function isStatic (node) {
-  if (node.type === 2) { // expression
-    return false
-  }
-  if (node.type === 3) { // text
-    return true
-  }
-  return !!(node.pre || (
-    !node.hasBindings && // no dynamic bindings
-    !node.if && !node.for && // not v-if or v-for or v-else
-    !isBuiltInTag(node.tag) && // not a built-in
-    isPlatformReservedTag(node.tag) && // not a component
-    !isDirectChildOfTemplateFor(node) &&
-    Object.keys(node).every(isStaticKey)
-  ))
-}
-
-function isDirectChildOfTemplateFor (node) {
-  while (node.parent) {
-    node = node.parent;
-    if (node.tag !== 'template') {
-      return false
-    }
-    if (node.for) {
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
-var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
-
-// KeyboardEvent.keyCode aliases
-var keyCodes = {
-  esc: 27,
-  tab: 9,
-  enter: 13,
-  space: 32,
-  up: 38,
-  left: 37,
-  right: 39,
-  down: 40,
-  'delete': [8, 46]
-};
-
-// KeyboardEvent.key aliases
-var keyNames = {
-  // #7880: IE11 and Edge use `Esc` for Escape key name.
-  esc: ['Esc', 'Escape'],
-  tab: 'Tab',
-  enter: 'Enter',
-  // #9112: IE11 uses `Spacebar` for Space key name.
-  space: [' ', 'Spacebar'],
-  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
-  up: ['Up', 'ArrowUp'],
-  left: ['Left', 'ArrowLeft'],
-  right: ['Right', 'ArrowRight'],
-  down: ['Down', 'ArrowDown'],
-  // #9112: IE11 uses `Del` for Delete key name.
-  'delete': ['Backspace', 'Delete', 'Del']
-};
-
-// #4868: modifiers that prevent the execution of the listener
-// need to explicitly return null so that we can determine whether to remove
-// the listener for .once
-var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
-
-var modifierCode = {
-  stop: '$event.stopPropagation();',
-  prevent: '$event.preventDefault();',
-  self: genGuard("$event.target !== $event.currentTarget"),
-  ctrl: genGuard("!$event.ctrlKey"),
-  shift: genGuard("!$event.shiftKey"),
-  alt: genGuard("!$event.altKey"),
-  meta: genGuard("!$event.metaKey"),
-  left: genGuard("'button' in $event && $event.button !== 0"),
-  middle: genGuard("'button' in $event && $event.button !== 1"),
-  right: genGuard("'button' in $event && $event.button !== 2")
-};
-
-function genHandlers (
-  events,
-  isNative
-) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
-  for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
-  }
-  return res.slice(0, -1) + '}'
-}
-
-function genHandler (
-  name,
-  handler
-) {
-  if (!handler) {
-    return 'function(){}'
-  }
-
-  if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
-  }
-
-  var isMethodPath = simplePathRE.test(handler.value);
-  var isFunctionExpression = fnExpRE.test(handler.value);
-
-  if (!handler.modifiers) {
-    if (isMethodPath || isFunctionExpression) {
-      return handler.value
-    }
-    return ("function($event){" + (handler.value) + "}") // inline statement
-  } else {
-    var code = '';
-    var genModifierCode = '';
-    var keys = [];
-    for (var key in handler.modifiers) {
-      if (modifierCode[key]) {
-        genModifierCode += modifierCode[key];
-        // left/right
-        if (keyCodes[key]) {
-          keys.push(key);
-        }
-      } else if (key === 'exact') {
-        var modifiers = (handler.modifiers);
-        genModifierCode += genGuard(
-          ['ctrl', 'shift', 'alt', 'meta']
-            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
-            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
-            .join('||')
-        );
-      } else {
-        keys.push(key);
-      }
-    }
-    if (keys.length) {
-      code += genKeyFilter(keys);
-    }
-    // Make sure modifiers like prevent and stop get executed after key filtering
-    if (genModifierCode) {
-      code += genModifierCode;
-    }
-    var handlerCode = isMethodPath
-      ? ("return " + (handler.value) + "($event)")
-      : isFunctionExpression
-        ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
-    return ("function($event){" + code + handlerCode + "}")
-  }
-}
-
-function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
-}
-
-function genFilterCode (key) {
-  var keyVal = parseInt(key, 10);
-  if (keyVal) {
-    return ("$event.keyCode!==" + keyVal)
-  }
-  var keyCode = keyCodes[key];
-  var keyName = keyNames[key];
-  return (
-    "_k($event.keyCode," +
-    (JSON.stringify(key)) + "," +
-    (JSON.stringify(keyCode)) + "," +
-    "$event.key," +
-    "" + (JSON.stringify(keyName)) +
-    ")"
-  )
-}
-
-/*  */
-
-function on (el, dir) {
-  if (process.env.NODE_ENV !== 'production' && dir.modifiers) {
-    warn("v-on without argument does not support modifiers.");
-  }
-  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
-}
-
-/*  */
-
-function bind$1 (el, dir) {
-  el.wrapData = function (code) {
-    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
-  };
-}
-
-/*  */
-
-var baseDirectives = {
-  on: on,
-  bind: bind$1,
-  cloak: noop
-};
-
-/*  */
-
-
-
-
-
-var CodegenState = function CodegenState (options) {
-  this.options = options;
-  this.warn = options.warn || baseWarn;
-  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
-  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
-  this.directives = extend(extend({}, baseDirectives), options.directives);
-  var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
-  this.onceId = 0;
-  this.staticRenderFns = [];
-  this.pre = false;
-};
-
-
-
-function generate (
-  ast,
-  options
-) {
-  var state = new CodegenState(options);
-  var code = ast ? genElement(ast, state) : '_c("div")';
-  return {
-    render: ("with(this){return " + code + "}"),
-    staticRenderFns: state.staticRenderFns
-  }
-}
-
-function genElement (el, state) {
-  if (el.parent) {
-    el.pre = el.pre || el.parent.pre;
-  }
-
-  if (el.staticRoot && !el.staticProcessed) {
-    return genStatic(el, state)
-  } else if (el.once && !el.onceProcessed) {
-    return genOnce(el, state)
-  } else if (el.for && !el.forProcessed) {
-    return genFor(el, state)
-  } else if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
-    return genChildren(el, state) || 'void 0'
-  } else if (el.tag === 'slot') {
-    return genSlot(el, state)
-  } else {
-    // component or element
-    var code;
-    if (el.component) {
-      code = genComponent(el.component, el, state);
-    } else {
-      var data;
-      if (!el.plain || (el.pre && state.maybeComponent(el))) {
-        data = genData$2(el, state);
-      }
-
-      var children = el.inlineTemplate ? null : genChildren(el, state, true);
-      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
-    }
-    // module transforms
-    for (var i = 0; i < state.transforms.length; i++) {
-      code = state.transforms[i](el, code);
-    }
-    return code
-  }
-}
-
-// hoist static sub-trees out
-function genStatic (el, state) {
-  el.staticProcessed = true;
-  // Some elements (templates) need to behave differently inside of a v-pre
-  // node.  All pre nodes are static roots, so we can use this as a location to
-  // wrap a state change and reset it upon exiting the pre node.
-  var originalPreState = state.pre;
-  if (el.pre) {
-    state.pre = el.pre;
-  }
-  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
-  state.pre = originalPreState;
-  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
-}
-
-// v-once
-function genOnce (el, state) {
-  el.onceProcessed = true;
-  if (el.if && !el.ifProcessed) {
-    return genIf(el, state)
-  } else if (el.staticInFor) {
-    var key = '';
-    var parent = el.parent;
-    while (parent) {
-      if (parent.for) {
-        key = parent.key;
-        break
-      }
-      parent = parent.parent;
-    }
-    if (!key) {
-      process.env.NODE_ENV !== 'production' && state.warn(
-        "v-once can only be used inside v-for that is keyed. "
-      );
-      return genElement(el, state)
-    }
-    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
-  } else {
-    return genStatic(el, state)
-  }
-}
-
-function genIf (
-  el,
-  state,
-  altGen,
-  altEmpty
-) {
-  el.ifProcessed = true; // avoid recursion
-  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
-}
-
-function genIfConditions (
-  conditions,
-  state,
-  altGen,
-  altEmpty
-) {
-  if (!conditions.length) {
-    return altEmpty || '_e()'
-  }
-
-  var condition = conditions.shift();
-  if (condition.exp) {
-    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
-  } else {
-    return ("" + (genTernaryExp(condition.block)))
-  }
-
-  // v-if with v-once should generate code like (a)?_m(0):_m(1)
-  function genTernaryExp (el) {
-    return altGen
-      ? altGen(el, state)
-      : el.once
-        ? genOnce(el, state)
-        : genElement(el, state)
-  }
-}
-
-function genFor (
-  el,
-  state,
-  altGen,
-  altHelper
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-
-  if (process.env.NODE_ENV !== 'production' &&
-    state.maybeComponent(el) &&
-    el.tag !== 'slot' &&
-    el.tag !== 'template' &&
-    !el.key
-  ) {
-    state.warn(
-      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
-      "v-for should have explicit keys. " +
-      "See https://vuejs.org/guide/list.html#key for more info.",
-      true /* tip */
-    );
-  }
-
-  el.forProcessed = true; // avoid recursion
-  return (altHelper || '_l') + "((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + ((altGen || genElement)(el, state)) +
-    '})'
-}
-
-function genData$2 (el, state) {
-  var data = '{';
-
-  // directives first.
-  // directives may mutate the el's other properties before they are generated.
-  var dirs = genDirectives(el, state);
-  if (dirs) { data += dirs + ','; }
-
-  // key
-  if (el.key) {
-    data += "key:" + (el.key) + ",";
-  }
-  // ref
-  if (el.ref) {
-    data += "ref:" + (el.ref) + ",";
-  }
-  if (el.refInFor) {
-    data += "refInFor:true,";
-  }
-  // pre
-  if (el.pre) {
-    data += "pre:true,";
-  }
-  // record original tag name for components using "is" attribute
-  if (el.component) {
-    data += "tag:\"" + (el.tag) + "\",";
-  }
-  // module data generation functions
-  for (var i = 0; i < state.dataGenFns.length; i++) {
-    data += state.dataGenFns[i](el);
-  }
-  // attributes
-  if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
-  }
-  // DOM props
-  if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
-  }
-  // event handlers
-  if (el.events) {
-    data += (genHandlers(el.events, false)) + ",";
-  }
-  if (el.nativeEvents) {
-    data += (genHandlers(el.nativeEvents, true)) + ",";
-  }
-  // slot target
-  // only for non-scoped slots
-  if (el.slotTarget && !el.slotScope) {
-    data += "slot:" + (el.slotTarget) + ",";
-  }
-  // scoped slots
-  if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
-  }
-  // component v-model
-  if (el.model) {
-    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
-  }
-  // inline-template
-  if (el.inlineTemplate) {
-    var inlineTemplate = genInlineTemplate(el, state);
-    if (inlineTemplate) {
-      data += inlineTemplate + ",";
-    }
-  }
-  data = data.replace(/,$/, '') + '}';
-  // v-bind data wrap
-  if (el.wrapData) {
-    data = el.wrapData(data);
-  }
-  // v-on data wrap
-  if (el.wrapListeners) {
-    data = el.wrapListeners(data);
-  }
-  return data
-}
-
-function genDirectives (el, state) {
-  var dirs = el.directives;
-  if (!dirs) { return }
-  var res = 'directives:[';
-  var hasRuntime = false;
-  var i, l, dir, needRuntime;
-  for (i = 0, l = dirs.length; i < l; i++) {
-    dir = dirs[i];
-    needRuntime = true;
-    var gen = state.directives[dir.name];
-    if (gen) {
-      // compile-time directive that manipulates AST.
-      // returns true if it also needs a runtime counterpart.
-      needRuntime = !!gen(el, dir, state.warn);
-    }
-    if (needRuntime) {
-      hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
-    }
-  }
-  if (hasRuntime) {
-    return res.slice(0, -1) + ']'
-  }
-}
-
-function genInlineTemplate (el, state) {
-  var ast = el.children[0];
-  if (process.env.NODE_ENV !== 'production' && (
-    el.children.length !== 1 || ast.type !== 1
-  )) {
-    state.warn('Inline-template components must have exactly one child element.');
-  }
-  if (ast.type === 1) {
-    var inlineRenderFns = generate(ast, state.options);
-    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
-  }
-}
-
-function genScopedSlots (
-  slots,
-  state
-) {
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
-}
-
-function genScopedSlot (
-  key,
-  el,
-  state
-) {
-  if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
-  }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
-    "return " + (el.tag === 'template'
-      ? el.if
-        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
-      : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
-}
-
-function genChildren (
-  el,
-  state,
-  checkSkip,
-  altGenElement,
-  altGenNode
-) {
-  var children = el.children;
-  if (children.length) {
-    var el$1 = children[0];
-    // optimize single v-for
-    if (children.length === 1 &&
-      el$1.for &&
-      el$1.tag !== 'template' &&
-      el$1.tag !== 'slot'
-    ) {
-      var normalizationType = checkSkip
-        ? state.maybeComponent(el$1) ? ",1" : ",0"
-        : "";
-      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
-    }
-    var normalizationType$1 = checkSkip
-      ? getNormalizationType(children, state.maybeComponent)
-      : 0;
-    var gen = altGenNode || genNode;
-    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
-  }
-}
-
-// determine the normalization needed for the children array.
-// 0: no normalization needed
-// 1: simple normalization needed (possible 1-level deep nested array)
-// 2: full normalization needed
-function getNormalizationType (
-  children,
-  maybeComponent
-) {
-  var res = 0;
-  for (var i = 0; i < children.length; i++) {
-    var el = children[i];
-    if (el.type !== 1) {
-      continue
-    }
-    if (needsNormalization(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
-      res = 2;
-      break
-    }
-    if (maybeComponent(el) ||
-        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
-      res = 1;
-    }
-  }
-  return res
-}
-
-function needsNormalization (el) {
-  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
-}
-
-function genNode (node, state) {
-  if (node.type === 1) {
-    return genElement(node, state)
-  } else if (node.type === 3 && node.isComment) {
-    return genComment(node)
-  } else {
-    return genText(node)
-  }
-}
-
-function genText (text) {
-  return ("_v(" + (text.type === 2
-    ? text.expression // no need for () because already wrapped in _s()
-    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
-}
-
-function genComment (comment) {
-  return ("_e(" + (JSON.stringify(comment.text)) + ")")
-}
-
-function genSlot (el, state) {
-  var slotName = el.slotName || '"default"';
-  var children = genChildren(el, state);
-  var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
-  var bind$$1 = el.attrsMap['v-bind'];
-  if ((attrs || bind$$1) && !children) {
-    res += ",null";
-  }
-  if (attrs) {
-    res += "," + attrs;
-  }
-  if (bind$$1) {
-    res += (attrs ? '' : ',null') + "," + bind$$1;
-  }
-  return res + ')'
-}
-
-// componentName is el.component, take it as argument to shun flow's pessimistic refinement
-function genComponent (
-  componentName,
-  el,
-  state
-) {
-  var children = el.inlineTemplate ? null : genChildren(el, state, true);
-  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
-}
-
-function genProps (props) {
-  var res = '';
-  for (var i = 0; i < props.length; i++) {
-    var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
-    }
-  }
-  return res.slice(0, -1)
-}
-
-// #3895, #4268
-function transformSpecialNewlines (text) {
-  return text
-    .replace(/\u2028/g, '\\u2028')
-    .replace(/\u2029/g, '\\u2029')
-}
-
-/*  */
-
-// these keywords should not appear inside expressions, but operators like
-// typeof, instanceof and in are allowed
-var prohibitedKeywordRE = new RegExp('\\b' + (
-  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
-  'super,throw,while,yield,delete,export,import,return,switch,default,' +
-  'extends,finally,continue,debugger,function,arguments'
-).split(',').join('\\b|\\b') + '\\b');
-
-// these unary operators should not be used as property/method names
-var unaryOperatorsRE = new RegExp('\\b' + (
-  'delete,typeof,void'
-).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
-
-// strip strings in expressions
-var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
-
-// detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
-  if (ast) {
-    checkNode(ast, errors);
-  }
-  return errors
-}
-
-function checkNode (node, errors) {
-  if (node.type === 1) {
-    for (var name in node.attrsMap) {
-      if (dirRE.test(name)) {
-        var value = node.attrsMap[name];
-        if (value) {
-          if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
-          } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
-          } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
-          }
-        }
-      }
-    }
-    if (node.children) {
-      for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
-      }
-    }
-  } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
-  }
-}
-
-function checkEvent (exp, text, errors) {
-  var stipped = exp.replace(stripStringRE, '');
-  var keywordMatch = stipped.match(unaryOperatorsRE);
-  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
-      "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
-    );
-  }
-  checkExpression(exp, text, errors);
-}
-
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
-}
-
-function checkIdentifier (
-  ident,
-  type,
-  text,
-  errors
-) {
-  if (typeof ident === 'string') {
-    try {
-      new Function(("var " + ident + "=_"));
-    } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
-    }
-  }
-}
-
-function checkExpression (exp, text, errors) {
-  try {
-    new Function(("return " + exp));
-  } catch (e) {
-    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
-    if (keywordMatch) {
-      errors.push(
-        "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
-      );
-    } else {
-      errors.push(
-        "invalid expression: " + (e.message) + " in\n\n" +
-        "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
-      );
-    }
-  }
-}
-
-/*  */
-
-
-
-function createFunction (code, errors) {
-  try {
-    return new Function(code)
-  } catch (err) {
-    errors.push({ err: err, code: code });
-    return noop
-  }
-}
-
-function createCompileToFunctionFn (compile) {
-  var cache = Object.create(null);
-
-  return function compileToFunctions (
-    template,
-    options,
-    vm
-  ) {
-    options = extend({}, options);
-    var warn$$1 = options.warn || warn;
-    delete options.warn;
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      // detect possible CSP restriction
-      try {
-        new Function('return 1');
-      } catch (e) {
-        if (e.toString().match(/unsafe-eval|CSP/)) {
-          warn$$1(
-            'It seems you are using the standalone build of Vue.js in an ' +
-            'environment with Content Security Policy that prohibits unsafe-eval. ' +
-            'The template compiler cannot work in this environment. Consider ' +
-            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
-            'templates into render functions.'
-          );
-        }
-      }
-    }
-
-    // check cache
-    var key = options.delimiters
-      ? String(options.delimiters) + template
-      : template;
-    if (cache[key]) {
-      return cache[key]
-    }
-
-    // compile
-    var compiled = compile(template, options);
-
-    // check compilation errors/tips
-    if (process.env.NODE_ENV !== 'production') {
-      if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
-        );
-      }
-      if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
-      }
-    }
-
-    // turn code into functions
-    var res = {};
-    var fnGenErrors = [];
-    res.render = createFunction(compiled.render, fnGenErrors);
-    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
-      return createFunction(code, fnGenErrors)
-    });
-
-    // check function generation errors.
-    // this should only happen if there is a bug in the compiler itself.
-    // mostly for codegen development use
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production') {
-      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
-        warn$$1(
-          "Failed to generate render function:\n\n" +
-          fnGenErrors.map(function (ref) {
-            var err = ref.err;
-            var code = ref.code;
-
-            return ((err.toString()) + " in\n\n" + code + "\n");
-        }).join('\n'),
-          vm
-        );
-      }
-    }
-
-    return (cache[key] = res)
-  }
-}
-
-/*  */
-
-function createCompilerCreator (baseCompile) {
-  return function createCompiler (baseOptions) {
-    function compile (
-      template,
-      options
-    ) {
-      var finalOptions = Object.create(baseOptions);
-      var errors = [];
-      var tips = [];
-      finalOptions.warn = function (msg, tip) {
-        (tip ? tips : errors).push(msg);
-      };
-
-      if (options) {
-        // merge custom modules
-        if (options.modules) {
-          finalOptions.modules =
-            (baseOptions.modules || []).concat(options.modules);
-        }
-        // merge custom directives
-        if (options.directives) {
-          finalOptions.directives = extend(
-            Object.create(baseOptions.directives || null),
-            options.directives
-          );
-        }
-        // copy other options
-        for (var key in options) {
-          if (key !== 'modules' && key !== 'directives') {
-            finalOptions[key] = options[key];
-          }
-        }
-      }
-
-      var compiled = baseCompile(template, finalOptions);
-      if (process.env.NODE_ENV !== 'production') {
-        errors.push.apply(errors, detectErrors(compiled.ast));
-      }
-      compiled.errors = errors;
-      compiled.tips = tips;
-      return compiled
-    }
-
-    return {
-      compile: compile,
-      compileToFunctions: createCompileToFunctionFn(compile)
-    }
-  }
-}
-
-/*  */
-
-// `createCompilerCreator` allows creating compilers that use alternative
-// parser/optimizer/codegen, e.g the SSR optimizing compiler.
-// Here we just export a default compiler using the default parts.
-var createCompiler = createCompilerCreator(function baseCompile (
-  template,
-  options
-) {
-  var ast = parse(template.trim(), options);
-  if (options.optimize !== false) {
-    optimize(ast, options);
-  }
-  var code = generate(ast, options);
-  return {
-    ast: ast,
-    render: code.render,
-    staticRenderFns: code.staticRenderFns
-  }
-});
-
-/*  */
-
-var ref$1 = createCompiler(baseOptions);
-var compile = ref$1.compile;
-var compileToFunctions = ref$1.compileToFunctions;
-
-/*  */
-
-// check whether current browser encodes a char inside attribute values
-var div;
-function getShouldDecode (href) {
-  div = div || document.createElement('div');
-  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
-  return div.innerHTML.indexOf('&#10;') > 0
-}
-
-// #3663: IE encodes newlines inside attribute values while other browsers don't
-var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
-// #6828: chrome encodes content in a[href]
-var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
-
-/*  */
-
-var idToTemplate = cached(function (id) {
-  var el = query(id);
-  return el && el.innerHTML
-});
-
-var mount = Vue.prototype.$mount;
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && query(el);
-
-  /* istanbul ignore if */
-  if (el === document.body || el === document.documentElement) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Do not mount Vue to <html> or <body> - mount to normal elements instead."
-    );
-    return this
-  }
-
-  var options = this.$options;
-  // resolve template/el and convert to render function
-  if (!options.render) {
-    var template = options.template;
-    if (template) {
-      if (typeof template === 'string') {
-        if (template.charAt(0) === '#') {
-          template = idToTemplate(template);
-          /* istanbul ignore if */
-          if (process.env.NODE_ENV !== 'production' && !template) {
-            warn(
-              ("Template element not found or is empty: " + (options.template)),
-              this
-            );
-          }
-        }
-      } else if (template.nodeType) {
-        template = template.innerHTML;
-      } else {
-        if (process.env.NODE_ENV !== 'production') {
-          warn('invalid template option:' + template, this);
-        }
-        return this
-      }
-    } else if (el) {
-      template = getOuterHTML(el);
-    }
-    if (template) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-        mark('compile');
-      }
-
-      var ref = compileToFunctions(template, {
-        shouldDecodeNewlines: shouldDecodeNewlines,
-        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
-        delimiters: options.delimiters,
-        comments: options.comments
-      }, this);
-      var render = ref.render;
-      var staticRenderFns = ref.staticRenderFns;
-      options.render = render;
-      options.staticRenderFns = staticRenderFns;
-
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-        mark('compile end');
-        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
-      }
-    }
-  }
-  return mount.call(this, el, hydrating)
-};
-
-/**
- * Get outerHTML of elements, taking care
- * of SVG elements in IE as well.
- */
-function getOuterHTML (el) {
-  if (el.outerHTML) {
-    return el.outerHTML
-  } else {
-    var container = document.createElement('div');
-    container.appendChild(el.cloneNode(true));
-    return container.innerHTML
-  }
+  module.exports = require('./vue.common.dev.js')
 }
diff --git a/dist/vue.runtime.common.js b/dist/vue.runtime.common.js
index 7caaf50bc7d..07ddaa2ccba 100644
--- a/dist/vue.runtime.common.js
+++ b/dist/vue.runtime.common.js
@@ -1,8105 +1,5 @@
-/*!
- * Vue.js v2.5.22
- * (c) 2014-2019 Evan You
- * Released under the MIT License.
- */
-'use strict';
-
-/*  */
-
-var emptyObject = Object.freeze({});
-
-// These helpers produce better VM code in JS engines due to their
-// explicitness and function inlining.
-function isUndef (v) {
-  return v === undefined || v === null
-}
-
-function isDef (v) {
-  return v !== undefined && v !== null
-}
-
-function isTrue (v) {
-  return v === true
-}
-
-function isFalse (v) {
-  return v === false
-}
-
-/**
- * Check if value is primitive.
- */
-function isPrimitive (value) {
-  return (
-    typeof value === 'string' ||
-    typeof value === 'number' ||
-    // $flow-disable-line
-    typeof value === 'symbol' ||
-    typeof value === 'boolean'
-  )
-}
-
-/**
- * Quick object check - this is primarily used to tell
- * Objects from primitive values when we know the value
- * is a JSON-compliant type.
- */
-function isObject (obj) {
-  return obj !== null && typeof obj === 'object'
-}
-
-/**
- * Get the raw type string of a value, e.g., [object Object].
- */
-var _toString = Object.prototype.toString;
-
-function toRawType (value) {
-  return _toString.call(value).slice(8, -1)
-}
-
-/**
- * Strict object type check. Only returns true
- * for plain JavaScript objects.
- */
-function isPlainObject (obj) {
-  return _toString.call(obj) === '[object Object]'
-}
-
-function isRegExp (v) {
-  return _toString.call(v) === '[object RegExp]'
-}
-
-/**
- * Check if val is a valid array index.
- */
-function isValidArrayIndex (val) {
-  var n = parseFloat(String(val));
-  return n >= 0 && Math.floor(n) === n && isFinite(val)
-}
-
-/**
- * Convert a value to a string that is actually rendered.
- */
-function toString (val) {
-  return val == null
-    ? ''
-    : typeof val === 'object'
-      ? JSON.stringify(val, null, 2)
-      : String(val)
-}
-
-/**
- * Convert an input value to a number for persistence.
- * If the conversion fails, return original string.
- */
-function toNumber (val) {
-  var n = parseFloat(val);
-  return isNaN(n) ? val : n
-}
-
-/**
- * Make a map and return a function for checking if a key
- * is in that map.
- */
-function makeMap (
-  str,
-  expectsLowerCase
-) {
-  var map = Object.create(null);
-  var list = str.split(',');
-  for (var i = 0; i < list.length; i++) {
-    map[list[i]] = true;
-  }
-  return expectsLowerCase
-    ? function (val) { return map[val.toLowerCase()]; }
-    : function (val) { return map[val]; }
-}
-
-/**
- * Check if a tag is a built-in tag.
- */
-var isBuiltInTag = makeMap('slot,component', true);
-
-/**
- * Check if an attribute is a reserved attribute.
- */
-var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
-
-/**
- * Remove an item from an array.
- */
-function remove (arr, item) {
-  if (arr.length) {
-    var index = arr.indexOf(item);
-    if (index > -1) {
-      return arr.splice(index, 1)
-    }
-  }
-}
-
-/**
- * Check whether an object has the property.
- */
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-function hasOwn (obj, key) {
-  return hasOwnProperty.call(obj, key)
-}
-
-/**
- * Create a cached version of a pure function.
- */
-function cached (fn) {
-  var cache = Object.create(null);
-  return (function cachedFn (str) {
-    var hit = cache[str];
-    return hit || (cache[str] = fn(str))
-  })
-}
-
-/**
- * Camelize a hyphen-delimited string.
- */
-var camelizeRE = /-(\w)/g;
-var camelize = cached(function (str) {
-  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
-});
-
-/**
- * Capitalize a string.
- */
-var capitalize = cached(function (str) {
-  return str.charAt(0).toUpperCase() + str.slice(1)
-});
-
-/**
- * Hyphenate a camelCase string.
- */
-var hyphenateRE = /\B([A-Z])/g;
-var hyphenate = cached(function (str) {
-  return str.replace(hyphenateRE, '-$1').toLowerCase()
-});
-
-/**
- * Simple bind polyfill for environments that do not support it,
- * e.g., PhantomJS 1.x. Technically, we don't need this anymore
- * since native bind is now performant enough in most browsers.
- * But removing it would mean breaking code that was able to run in
- * PhantomJS 1.x, so this must be kept for backward compatibility.
- */
-
-/* istanbul ignore next */
-function polyfillBind (fn, ctx) {
-  function boundFn (a) {
-    var l = arguments.length;
-    return l
-      ? l > 1
-        ? fn.apply(ctx, arguments)
-        : fn.call(ctx, a)
-      : fn.call(ctx)
-  }
-
-  boundFn._length = fn.length;
-  return boundFn
-}
-
-function nativeBind (fn, ctx) {
-  return fn.bind(ctx)
-}
-
-var bind = Function.prototype.bind
-  ? nativeBind
-  : polyfillBind;
-
-/**
- * Convert an Array-like object to a real Array.
- */
-function toArray (list, start) {
-  start = start || 0;
-  var i = list.length - start;
-  var ret = new Array(i);
-  while (i--) {
-    ret[i] = list[i + start];
-  }
-  return ret
-}
-
-/**
- * Mix properties into target object.
- */
-function extend (to, _from) {
-  for (var key in _from) {
-    to[key] = _from[key];
-  }
-  return to
-}
-
-/**
- * Merge an Array of Objects into a single Object.
- */
-function toObject (arr) {
-  var res = {};
-  for (var i = 0; i < arr.length; i++) {
-    if (arr[i]) {
-      extend(res, arr[i]);
-    }
-  }
-  return res
-}
-
-/* eslint-disable no-unused-vars */
-
-/**
- * Perform no operation.
- * Stubbing args to make Flow happy without leaving useless transpiled code
- * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
- */
-function noop (a, b, c) {}
-
-/**
- * Always return false.
- */
-var no = function (a, b, c) { return false; };
-
-/* eslint-enable no-unused-vars */
-
-/**
- * Return the same value.
- */
-var identity = function (_) { return _; };
-
-/**
- * Check if two values are loosely equal - that is,
- * if they are plain objects, do they have the same shape?
- */
-function looseEqual (a, b) {
-  if (a === b) { return true }
-  var isObjectA = isObject(a);
-  var isObjectB = isObject(b);
-  if (isObjectA && isObjectB) {
-    try {
-      var isArrayA = Array.isArray(a);
-      var isArrayB = Array.isArray(b);
-      if (isArrayA && isArrayB) {
-        return a.length === b.length && a.every(function (e, i) {
-          return looseEqual(e, b[i])
-        })
-      } else if (a instanceof Date && b instanceof Date) {
-        return a.getTime() === b.getTime()
-      } else if (!isArrayA && !isArrayB) {
-        var keysA = Object.keys(a);
-        var keysB = Object.keys(b);
-        return keysA.length === keysB.length && keysA.every(function (key) {
-          return looseEqual(a[key], b[key])
-        })
-      } else {
-        /* istanbul ignore next */
-        return false
-      }
-    } catch (e) {
-      /* istanbul ignore next */
-      return false
-    }
-  } else if (!isObjectA && !isObjectB) {
-    return String(a) === String(b)
-  } else {
-    return false
-  }
-}
-
-/**
- * Return the first index at which a loosely equal value can be
- * found in the array (if value is a plain object, the array must
- * contain an object of the same shape), or -1 if it is not present.
- */
-function looseIndexOf (arr, val) {
-  for (var i = 0; i < arr.length; i++) {
-    if (looseEqual(arr[i], val)) { return i }
-  }
-  return -1
-}
-
-/**
- * Ensure a function is called only once.
- */
-function once (fn) {
-  var called = false;
-  return function () {
-    if (!called) {
-      called = true;
-      fn.apply(this, arguments);
-    }
-  }
-}
-
-var SSR_ATTR = 'data-server-rendered';
-
-var ASSET_TYPES = [
-  'component',
-  'directive',
-  'filter'
-];
-
-var LIFECYCLE_HOOKS = [
-  'beforeCreate',
-  'created',
-  'beforeMount',
-  'mounted',
-  'beforeUpdate',
-  'updated',
-  'beforeDestroy',
-  'destroyed',
-  'activated',
-  'deactivated',
-  'errorCaptured'
-];
-
-/*  */
-
-
-
-var config = ({
-  /**
-   * Option merge strategies (used in core/util/options)
-   */
-  // $flow-disable-line
-  optionMergeStrategies: Object.create(null),
-
-  /**
-   * Whether to suppress warnings.
-   */
-  silent: false,
-
-  /**
-   * Show production mode tip message on boot?
-   */
-  productionTip: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to enable devtools
-   */
-  devtools: process.env.NODE_ENV !== 'production',
-
-  /**
-   * Whether to record perf
-   */
-  performance: false,
-
-  /**
-   * Error handler for watcher errors
-   */
-  errorHandler: null,
-
-  /**
-   * Warn handler for watcher warns
-   */
-  warnHandler: null,
-
-  /**
-   * Ignore certain custom elements
-   */
-  ignoredElements: [],
-
-  /**
-   * Custom user key aliases for v-on
-   */
-  // $flow-disable-line
-  keyCodes: Object.create(null),
-
-  /**
-   * Check if a tag is reserved so that it cannot be registered as a
-   * component. This is platform-dependent and may be overwritten.
-   */
-  isReservedTag: no,
-
-  /**
-   * Check if an attribute is reserved so that it cannot be used as a component
-   * prop. This is platform-dependent and may be overwritten.
-   */
-  isReservedAttr: no,
-
-  /**
-   * Check if a tag is an unknown element.
-   * Platform-dependent.
-   */
-  isUnknownElement: no,
-
-  /**
-   * Get the namespace of an element
-   */
-  getTagNamespace: noop,
-
-  /**
-   * Parse the real tag name for the specific platform.
-   */
-  parsePlatformTagName: identity,
-
-  /**
-   * Check if an attribute must be bound using property, e.g. value
-   * Platform-dependent.
-   */
-  mustUseProp: no,
-
-  /**
-   * Perform updates asynchronously. Intended to be used by Vue Test Utils
-   * This will significantly reduce performance if set to false.
-   */
-  async: true,
-
-  /**
-   * Exposed for legacy reasons
-   */
-  _lifecycleHooks: LIFECYCLE_HOOKS
-});
-
-/*  */
-
-/**
- * Check if a string starts with $ or _
- */
-function isReserved (str) {
-  var c = (str + '').charCodeAt(0);
-  return c === 0x24 || c === 0x5F
-}
-
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/**
- * Parse simple path.
- */
-var bailRE = /[^\w.$]/;
-function parsePath (path) {
-  if (bailRE.test(path)) {
-    return
-  }
-  var segments = path.split('.');
-  return function (obj) {
-    for (var i = 0; i < segments.length; i++) {
-      if (!obj) { return }
-      obj = obj[segments[i]];
-    }
-    return obj
-  }
-}
-
-/*  */
-
-// can we use __proto__?
-var hasProto = '__proto__' in {};
-
-// Browser environment sniffing
-var inBrowser = typeof window !== 'undefined';
-var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
-var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
-var UA = inBrowser && window.navigator.userAgent.toLowerCase();
-var isIE = UA && /msie|trident/.test(UA);
-var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
-var isEdge = UA && UA.indexOf('edge/') > 0;
-var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
-var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
-var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
-
-// Firefox has a "watch" function on Object.prototype...
-var nativeWatch = ({}).watch;
-
-var supportsPassive = false;
-if (inBrowser) {
-  try {
-    var opts = {};
-    Object.defineProperty(opts, 'passive', ({
-      get: function get () {
-        /* istanbul ignore next */
-        supportsPassive = true;
-      }
-    })); // https://github.com/facebook/flow/issues/285
-    window.addEventListener('test-passive', null, opts);
-  } catch (e) {}
-}
-
-// this needs to be lazy-evaled because vue may be required before
-// vue-server-renderer can set VUE_ENV
-var _isServer;
-var isServerRendering = function () {
-  if (_isServer === undefined) {
-    /* istanbul ignore if */
-    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
-      // detect presence of vue-server-renderer and avoid
-      // Webpack shimming the process
-      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
-    } else {
-      _isServer = false;
-    }
-  }
-  return _isServer
-};
-
-// detect devtools
-var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
-
-/* istanbul ignore next */
-function isNative (Ctor) {
-  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
-}
-
-var hasSymbol =
-  typeof Symbol !== 'undefined' && isNative(Symbol) &&
-  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
-
-var _Set;
-/* istanbul ignore if */ // $flow-disable-line
-if (typeof Set !== 'undefined' && isNative(Set)) {
-  // use native Set when available.
-  _Set = Set;
+if (process.env.NODE_ENV === 'production') {
+  module.exports = require('./vue.runtime.common.prod.js')
 } else {
-  // a non-standard Set polyfill that only works with primitive keys.
-  _Set = /*@__PURE__*/(function () {
-    function Set () {
-      this.set = Object.create(null);
-    }
-    Set.prototype.has = function has (key) {
-      return this.set[key] === true
-    };
-    Set.prototype.add = function add (key) {
-      this.set[key] = true;
-    };
-    Set.prototype.clear = function clear () {
-      this.set = Object.create(null);
-    };
-
-    return Set;
-  }());
-}
-
-/*  */
-
-var warn = noop;
-var tip = noop;
-var generateComponentTrace = (noop); // work around flow check
-var formatComponentName = (noop);
-
-if (process.env.NODE_ENV !== 'production') {
-  var hasConsole = typeof console !== 'undefined';
-  var classifyRE = /(?:^|[-_])(\w)/g;
-  var classify = function (str) { return str
-    .replace(classifyRE, function (c) { return c.toUpperCase(); })
-    .replace(/[-_]/g, ''); };
-
-  warn = function (msg, vm) {
-    var trace = vm ? generateComponentTrace(vm) : '';
-
-    if (config.warnHandler) {
-      config.warnHandler.call(null, msg, vm, trace);
-    } else if (hasConsole && (!config.silent)) {
-      console.error(("[Vue warn]: " + msg + trace));
-    }
-  };
-
-  tip = function (msg, vm) {
-    if (hasConsole && (!config.silent)) {
-      console.warn("[Vue tip]: " + msg + (
-        vm ? generateComponentTrace(vm) : ''
-      ));
-    }
-  };
-
-  formatComponentName = function (vm, includeFile) {
-    if (vm.$root === vm) {
-      return '<Root>'
-    }
-    var options = typeof vm === 'function' && vm.cid != null
-      ? vm.options
-      : vm._isVue
-        ? vm.$options || vm.constructor.options
-        : vm;
-    var name = options.name || options._componentTag;
-    var file = options.__file;
-    if (!name && file) {
-      var match = file.match(/([^/\\]+)\.vue$/);
-      name = match && match[1];
-    }
-
-    return (
-      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
-      (file && includeFile !== false ? (" at " + file) : '')
-    )
-  };
-
-  var repeat = function (str, n) {
-    var res = '';
-    while (n) {
-      if (n % 2 === 1) { res += str; }
-      if (n > 1) { str += str; }
-      n >>= 1;
-    }
-    return res
-  };
-
-  generateComponentTrace = function (vm) {
-    if (vm._isVue && vm.$parent) {
-      var tree = [];
-      var currentRecursiveSequence = 0;
-      while (vm) {
-        if (tree.length > 0) {
-          var last = tree[tree.length - 1];
-          if (last.constructor === vm.constructor) {
-            currentRecursiveSequence++;
-            vm = vm.$parent;
-            continue
-          } else if (currentRecursiveSequence > 0) {
-            tree[tree.length - 1] = [last, currentRecursiveSequence];
-            currentRecursiveSequence = 0;
-          }
-        }
-        tree.push(vm);
-        vm = vm.$parent;
-      }
-      return '\n\nfound in\n\n' + tree
-        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
-            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
-            : formatComponentName(vm))); })
-        .join('\n')
-    } else {
-      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
-    }
-  };
-}
-
-/*  */
-
-var uid = 0;
-
-/**
- * A dep is an observable that can have multiple
- * directives subscribing to it.
- */
-var Dep = function Dep () {
-  this.id = uid++;
-  this.subs = [];
-};
-
-Dep.prototype.addSub = function addSub (sub) {
-  this.subs.push(sub);
-};
-
-Dep.prototype.removeSub = function removeSub (sub) {
-  remove(this.subs, sub);
-};
-
-Dep.prototype.depend = function depend () {
-  if (Dep.target) {
-    Dep.target.addDep(this);
-  }
-};
-
-Dep.prototype.notify = function notify () {
-  // stabilize the subscriber list first
-  var subs = this.subs.slice();
-  if (process.env.NODE_ENV !== 'production' && !config.async) {
-    // subs aren't sorted in scheduler if not running async
-    // we need to sort them now to make sure they fire in correct
-    // order
-    subs.sort(function (a, b) { return a.id - b.id; });
-  }
-  for (var i = 0, l = subs.length; i < l; i++) {
-    subs[i].update();
-  }
-};
-
-// The current target watcher being evaluated.
-// This is globally unique because only one watcher
-// can be evaluated at a time.
-Dep.target = null;
-var targetStack = [];
-
-function pushTarget (target) {
-  targetStack.push(target);
-  Dep.target = target;
-}
-
-function popTarget () {
-  targetStack.pop();
-  Dep.target = targetStack[targetStack.length - 1];
-}
-
-/*  */
-
-var VNode = function VNode (
-  tag,
-  data,
-  children,
-  text,
-  elm,
-  context,
-  componentOptions,
-  asyncFactory
-) {
-  this.tag = tag;
-  this.data = data;
-  this.children = children;
-  this.text = text;
-  this.elm = elm;
-  this.ns = undefined;
-  this.context = context;
-  this.fnContext = undefined;
-  this.fnOptions = undefined;
-  this.fnScopeId = undefined;
-  this.key = data && data.key;
-  this.componentOptions = componentOptions;
-  this.componentInstance = undefined;
-  this.parent = undefined;
-  this.raw = false;
-  this.isStatic = false;
-  this.isRootInsert = true;
-  this.isComment = false;
-  this.isCloned = false;
-  this.isOnce = false;
-  this.asyncFactory = asyncFactory;
-  this.asyncMeta = undefined;
-  this.isAsyncPlaceholder = false;
-};
-
-var prototypeAccessors = { child: { configurable: true } };
-
-// DEPRECATED: alias for componentInstance for backwards compat.
-/* istanbul ignore next */
-prototypeAccessors.child.get = function () {
-  return this.componentInstance
-};
-
-Object.defineProperties( VNode.prototype, prototypeAccessors );
-
-var createEmptyVNode = function (text) {
-  if ( text === void 0 ) text = '';
-
-  var node = new VNode();
-  node.text = text;
-  node.isComment = true;
-  return node
-};
-
-function createTextVNode (val) {
-  return new VNode(undefined, undefined, undefined, String(val))
-}
-
-// optimized shallow clone
-// used for static nodes and slot nodes because they may be reused across
-// multiple renders, cloning them avoids errors when DOM manipulations rely
-// on their elm reference.
-function cloneVNode (vnode) {
-  var cloned = new VNode(
-    vnode.tag,
-    vnode.data,
-    // #7975
-    // clone children array to avoid mutating original in case of cloning
-    // a child.
-    vnode.children && vnode.children.slice(),
-    vnode.text,
-    vnode.elm,
-    vnode.context,
-    vnode.componentOptions,
-    vnode.asyncFactory
-  );
-  cloned.ns = vnode.ns;
-  cloned.isStatic = vnode.isStatic;
-  cloned.key = vnode.key;
-  cloned.isComment = vnode.isComment;
-  cloned.fnContext = vnode.fnContext;
-  cloned.fnOptions = vnode.fnOptions;
-  cloned.fnScopeId = vnode.fnScopeId;
-  cloned.asyncMeta = vnode.asyncMeta;
-  cloned.isCloned = true;
-  return cloned
-}
-
-/*
- * not type checking this file because flow doesn't play well with
- * dynamically accessing methods on Array prototype
- */
-
-var arrayProto = Array.prototype;
-var arrayMethods = Object.create(arrayProto);
-
-var methodsToPatch = [
-  'push',
-  'pop',
-  'shift',
-  'unshift',
-  'splice',
-  'sort',
-  'reverse'
-];
-
-/**
- * Intercept mutating methods and emit events
- */
-methodsToPatch.forEach(function (method) {
-  // cache original method
-  var original = arrayProto[method];
-  def(arrayMethods, method, function mutator () {
-    var args = [], len = arguments.length;
-    while ( len-- ) args[ len ] = arguments[ len ];
-
-    var result = original.apply(this, args);
-    var ob = this.__ob__;
-    var inserted;
-    switch (method) {
-      case 'push':
-      case 'unshift':
-        inserted = args;
-        break
-      case 'splice':
-        inserted = args.slice(2);
-        break
-    }
-    if (inserted) { ob.observeArray(inserted); }
-    // notify change
-    ob.dep.notify();
-    return result
-  });
-});
-
-/*  */
-
-var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
-
-/**
- * In some cases we may want to disable observation inside a component's
- * update computation.
- */
-var shouldObserve = true;
-
-function toggleObserving (value) {
-  shouldObserve = value;
-}
-
-/**
- * Observer class that is attached to each observed
- * object. Once attached, the observer converts the target
- * object's property keys into getter/setters that
- * collect dependencies and dispatch updates.
- */
-var Observer = function Observer (value) {
-  this.value = value;
-  this.dep = new Dep();
-  this.vmCount = 0;
-  def(value, '__ob__', this);
-  if (Array.isArray(value)) {
-    if (hasProto) {
-      protoAugment(value, arrayMethods);
-    } else {
-      copyAugment(value, arrayMethods, arrayKeys);
-    }
-    this.observeArray(value);
-  } else {
-    this.walk(value);
-  }
-};
-
-/**
- * Walk through all properties and convert them into
- * getter/setters. This method should only be called when
- * value type is Object.
- */
-Observer.prototype.walk = function walk (obj) {
-  var keys = Object.keys(obj);
-  for (var i = 0; i < keys.length; i++) {
-    defineReactive$$1(obj, keys[i]);
-  }
-};
-
-/**
- * Observe a list of Array items.
- */
-Observer.prototype.observeArray = function observeArray (items) {
-  for (var i = 0, l = items.length; i < l; i++) {
-    observe(items[i]);
-  }
-};
-
-// helpers
-
-/**
- * Augment a target Object or Array by intercepting
- * the prototype chain using __proto__
- */
-function protoAugment (target, src) {
-  /* eslint-disable no-proto */
-  target.__proto__ = src;
-  /* eslint-enable no-proto */
-}
-
-/**
- * Augment a target Object or Array by defining
- * hidden properties.
- */
-/* istanbul ignore next */
-function copyAugment (target, src, keys) {
-  for (var i = 0, l = keys.length; i < l; i++) {
-    var key = keys[i];
-    def(target, key, src[key]);
-  }
-}
-
-/**
- * Attempt to create an observer instance for a value,
- * returns the new observer if successfully observed,
- * or the existing observer if the value already has one.
- */
-function observe (value, asRootData) {
-  if (!isObject(value) || value instanceof VNode) {
-    return
-  }
-  var ob;
-  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
-    ob = value.__ob__;
-  } else if (
-    shouldObserve &&
-    !isServerRendering() &&
-    (Array.isArray(value) || isPlainObject(value)) &&
-    Object.isExtensible(value) &&
-    !value._isVue
-  ) {
-    ob = new Observer(value);
-  }
-  if (asRootData && ob) {
-    ob.vmCount++;
-  }
-  return ob
-}
-
-/**
- * Define a reactive property on an Object.
- */
-function defineReactive$$1 (
-  obj,
-  key,
-  val,
-  customSetter,
-  shallow
-) {
-  var dep = new Dep();
-
-  var property = Object.getOwnPropertyDescriptor(obj, key);
-  if (property && property.configurable === false) {
-    return
-  }
-
-  // cater for pre-defined getter/setters
-  var getter = property && property.get;
-  var setter = property && property.set;
-  if ((!getter || setter) && arguments.length === 2) {
-    val = obj[key];
-  }
-
-  var childOb = !shallow && observe(val);
-  Object.defineProperty(obj, key, {
-    enumerable: true,
-    configurable: true,
-    get: function reactiveGetter () {
-      var value = getter ? getter.call(obj) : val;
-      if (Dep.target) {
-        dep.depend();
-        if (childOb) {
-          childOb.dep.depend();
-          if (Array.isArray(value)) {
-            dependArray(value);
-          }
-        }
-      }
-      return value
-    },
-    set: function reactiveSetter (newVal) {
-      var value = getter ? getter.call(obj) : val;
-      /* eslint-disable no-self-compare */
-      if (newVal === value || (newVal !== newVal && value !== value)) {
-        return
-      }
-      /* eslint-enable no-self-compare */
-      if (process.env.NODE_ENV !== 'production' && customSetter) {
-        customSetter();
-      }
-      // #7981: for accessor properties without setter
-      if (getter && !setter) { return }
-      if (setter) {
-        setter.call(obj, newVal);
-      } else {
-        val = newVal;
-      }
-      childOb = !shallow && observe(newVal);
-      dep.notify();
-    }
-  });
-}
-
-/**
- * Set a property on an object. Adds the new property and
- * triggers change notification if the property doesn't
- * already exist.
- */
-function set (target, key, val) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.length = Math.max(target.length, key);
-    target.splice(key, 1, val);
-    return val
-  }
-  if (key in target && !(key in Object.prototype)) {
-    target[key] = val;
-    return val
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid adding reactive properties to a Vue instance or its root $data ' +
-      'at runtime - declare it upfront in the data option.'
-    );
-    return val
-  }
-  if (!ob) {
-    target[key] = val;
-    return val
-  }
-  defineReactive$$1(ob.value, key, val);
-  ob.dep.notify();
-  return val
-}
-
-/**
- * Delete a property and trigger change if necessary.
- */
-function del (target, key) {
-  if (process.env.NODE_ENV !== 'production' &&
-    (isUndef(target) || isPrimitive(target))
-  ) {
-    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
-  }
-  if (Array.isArray(target) && isValidArrayIndex(key)) {
-    target.splice(key, 1);
-    return
-  }
-  var ob = (target).__ob__;
-  if (target._isVue || (ob && ob.vmCount)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      'Avoid deleting properties on a Vue instance or its root $data ' +
-      '- just set it to null.'
-    );
-    return
-  }
-  if (!hasOwn(target, key)) {
-    return
-  }
-  delete target[key];
-  if (!ob) {
-    return
-  }
-  ob.dep.notify();
-}
-
-/**
- * Collect dependencies on array elements when the array is touched, since
- * we cannot intercept array element access like property getters.
- */
-function dependArray (value) {
-  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
-    e = value[i];
-    e && e.__ob__ && e.__ob__.dep.depend();
-    if (Array.isArray(e)) {
-      dependArray(e);
-    }
-  }
-}
-
-/*  */
-
-/**
- * Option overwriting strategies are functions that handle
- * how to merge a parent option value and a child option
- * value into the final value.
- */
-var strats = config.optionMergeStrategies;
-
-/**
- * Options with restrictions
- */
-if (process.env.NODE_ENV !== 'production') {
-  strats.el = strats.propsData = function (parent, child, vm, key) {
-    if (!vm) {
-      warn(
-        "option \"" + key + "\" can only be used during instance " +
-        'creation with the `new` keyword.'
-      );
-    }
-    return defaultStrat(parent, child)
-  };
-}
-
-/**
- * Helper that recursively merges two data objects together.
- */
-function mergeData (to, from) {
-  if (!from) { return to }
-  var key, toVal, fromVal;
-  var keys = Object.keys(from);
-  for (var i = 0; i < keys.length; i++) {
-    key = keys[i];
-    toVal = to[key];
-    fromVal = from[key];
-    if (!hasOwn(to, key)) {
-      set(to, key, fromVal);
-    } else if (
-      toVal !== fromVal &&
-      isPlainObject(toVal) &&
-      isPlainObject(fromVal)
-    ) {
-      mergeData(toVal, fromVal);
-    }
-  }
-  return to
-}
-
-/**
- * Data
- */
-function mergeDataOrFn (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    // in a Vue.extend merge, both should be functions
-    if (!childVal) {
-      return parentVal
-    }
-    if (!parentVal) {
-      return childVal
-    }
-    // when parentVal & childVal are both present,
-    // we need to return a function that returns the
-    // merged result of both functions... no need to
-    // check if parentVal is a function here because
-    // it has to be a function to pass previous merges.
-    return function mergedDataFn () {
-      return mergeData(
-        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
-        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
-      )
-    }
-  } else {
-    return function mergedInstanceDataFn () {
-      // instance merge
-      var instanceData = typeof childVal === 'function'
-        ? childVal.call(vm, vm)
-        : childVal;
-      var defaultData = typeof parentVal === 'function'
-        ? parentVal.call(vm, vm)
-        : parentVal;
-      if (instanceData) {
-        return mergeData(instanceData, defaultData)
-      } else {
-        return defaultData
-      }
-    }
-  }
-}
-
-strats.data = function (
-  parentVal,
-  childVal,
-  vm
-) {
-  if (!vm) {
-    if (childVal && typeof childVal !== 'function') {
-      process.env.NODE_ENV !== 'production' && warn(
-        'The "data" option should be a function ' +
-        'that returns a per-instance value in component ' +
-        'definitions.',
-        vm
-      );
-
-      return parentVal
-    }
-    return mergeDataOrFn(parentVal, childVal)
-  }
-
-  return mergeDataOrFn(parentVal, childVal, vm)
-};
-
-/**
- * Hooks and props are merged as arrays.
- */
-function mergeHook (
-  parentVal,
-  childVal
-) {
-  var res = childVal
-    ? parentVal
-      ? parentVal.concat(childVal)
-      : Array.isArray(childVal)
-        ? childVal
-        : [childVal]
-    : parentVal;
-  return res
-    ? dedupeHooks(res)
-    : res
-}
-
-function dedupeHooks (hooks) {
-  var res = [];
-  for (var i = 0; i < hooks.length; i++) {
-    if (res.indexOf(hooks[i]) === -1) {
-      res.push(hooks[i]);
-    }
-  }
-  return res
-}
-
-LIFECYCLE_HOOKS.forEach(function (hook) {
-  strats[hook] = mergeHook;
-});
-
-/**
- * Assets
- *
- * When a vm is present (instance creation), we need to do
- * a three-way merge between constructor options, instance
- * options and parent options.
- */
-function mergeAssets (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  var res = Object.create(parentVal || null);
-  if (childVal) {
-    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);
-    return extend(res, childVal)
-  } else {
-    return res
-  }
-}
-
-ASSET_TYPES.forEach(function (type) {
-  strats[type + 's'] = mergeAssets;
-});
-
-/**
- * Watchers.
- *
- * Watchers hashes should not overwrite one
- * another, so we merge them as arrays.
- */
-strats.watch = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  // work around Firefox's Object.prototype.watch...
-  if (parentVal === nativeWatch) { parentVal = undefined; }
-  if (childVal === nativeWatch) { childVal = undefined; }
-  /* istanbul ignore if */
-  if (!childVal) { return Object.create(parentVal || null) }
-  if (process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = {};
-  extend(ret, parentVal);
-  for (var key$1 in childVal) {
-    var parent = ret[key$1];
-    var child = childVal[key$1];
-    if (parent && !Array.isArray(parent)) {
-      parent = [parent];
-    }
-    ret[key$1] = parent
-      ? parent.concat(child)
-      : Array.isArray(child) ? child : [child];
-  }
-  return ret
-};
-
-/**
- * Other object hashes.
- */
-strats.props =
-strats.methods =
-strats.inject =
-strats.computed = function (
-  parentVal,
-  childVal,
-  vm,
-  key
-) {
-  if (childVal && process.env.NODE_ENV !== 'production') {
-    assertObjectType(key, childVal, vm);
-  }
-  if (!parentVal) { return childVal }
-  var ret = Object.create(null);
-  extend(ret, parentVal);
-  if (childVal) { extend(ret, childVal); }
-  return ret
-};
-strats.provide = mergeDataOrFn;
-
-/**
- * Default strategy.
- */
-var defaultStrat = function (parentVal, childVal) {
-  return childVal === undefined
-    ? parentVal
-    : childVal
-};
-
-/**
- * Validate component names
- */
-function checkComponents (options) {
-  for (var key in options.components) {
-    validateComponentName(key);
-  }
-}
-
-function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
-    warn(
-      'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
-    );
-  }
-  if (isBuiltInTag(name) || config.isReservedTag(name)) {
-    warn(
-      'Do not use built-in or reserved HTML elements as component ' +
-      'id: ' + name
-    );
-  }
-}
-
-/**
- * Ensure all props option syntax are normalized into the
- * Object-based format.
- */
-function normalizeProps (options, vm) {
-  var props = options.props;
-  if (!props) { return }
-  var res = {};
-  var i, val, name;
-  if (Array.isArray(props)) {
-    i = props.length;
-    while (i--) {
-      val = props[i];
-      if (typeof val === 'string') {
-        name = camelize(val);
-        res[name] = { type: null };
-      } else if (process.env.NODE_ENV !== 'production') {
-        warn('props must be strings when using array syntax.');
-      }
-    }
-  } else if (isPlainObject(props)) {
-    for (var key in props) {
-      val = props[key];
-      name = camelize(key);
-      res[name] = isPlainObject(val)
-        ? val
-        : { type: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"props\": expected an Array or an Object, " +
-      "but got " + (toRawType(props)) + ".",
-      vm
-    );
-  }
-  options.props = res;
-}
-
-/**
- * Normalize all injections into Object-based format
- */
-function normalizeInject (options, vm) {
-  var inject = options.inject;
-  if (!inject) { return }
-  var normalized = options.inject = {};
-  if (Array.isArray(inject)) {
-    for (var i = 0; i < inject.length; i++) {
-      normalized[inject[i]] = { from: inject[i] };
-    }
-  } else if (isPlainObject(inject)) {
-    for (var key in inject) {
-      var val = inject[key];
-      normalized[key] = isPlainObject(val)
-        ? extend({ from: key }, val)
-        : { from: val };
-    }
-  } else if (process.env.NODE_ENV !== 'production') {
-    warn(
-      "Invalid value for option \"inject\": expected an Array or an Object, " +
-      "but got " + (toRawType(inject)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Normalize raw function directives into object format.
- */
-function normalizeDirectives (options) {
-  var dirs = options.directives;
-  if (dirs) {
-    for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
-      }
-    }
-  }
-}
-
-function assertObjectType (name, value, vm) {
-  if (!isPlainObject(value)) {
-    warn(
-      "Invalid value for option \"" + name + "\": expected an Object, " +
-      "but got " + (toRawType(value)) + ".",
-      vm
-    );
-  }
-}
-
-/**
- * Merge two option objects into a new one.
- * Core utility used in both instantiation and inheritance.
- */
-function mergeOptions (
-  parent,
-  child,
-  vm
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    checkComponents(child);
-  }
-
-  if (typeof child === 'function') {
-    child = child.options;
-  }
-
-  normalizeProps(child, vm);
-  normalizeInject(child, vm);
-  normalizeDirectives(child);
-
-  // Apply extends and mixins on the child options,
-  // but only if it is a raw options object that isn't
-  // the result of another mergeOptions call.
-  // Only merged options has the _base property.
-  if (!child._base) {
-    if (child.extends) {
-      parent = mergeOptions(parent, child.extends, vm);
-    }
-    if (child.mixins) {
-      for (var i = 0, l = child.mixins.length; i < l; i++) {
-        parent = mergeOptions(parent, child.mixins[i], vm);
-      }
-    }
-  }
-
-  var options = {};
-  var key;
-  for (key in parent) {
-    mergeField(key);
-  }
-  for (key in child) {
-    if (!hasOwn(parent, key)) {
-      mergeField(key);
-    }
-  }
-  function mergeField (key) {
-    var strat = strats[key] || defaultStrat;
-    options[key] = strat(parent[key], child[key], vm, key);
-  }
-  return options
-}
-
-/**
- * Resolve an asset.
- * This function is used because child instances need access
- * to assets defined in its ancestor chain.
- */
-function resolveAsset (
-  options,
-  type,
-  id,
-  warnMissing
-) {
-  /* istanbul ignore if */
-  if (typeof id !== 'string') {
-    return
-  }
-  var assets = options[type];
-  // check local registration variations first
-  if (hasOwn(assets, id)) { return assets[id] }
-  var camelizedId = camelize(id);
-  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
-  var PascalCaseId = capitalize(camelizedId);
-  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
-  // fallback to prototype chain
-  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
-  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
-    warn(
-      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
-      options
-    );
-  }
-  return res
-}
-
-/*  */
-
-
-
-function validateProp (
-  key,
-  propOptions,
-  propsData,
-  vm
-) {
-  var prop = propOptions[key];
-  var absent = !hasOwn(propsData, key);
-  var value = propsData[key];
-  // boolean casting
-  var booleanIndex = getTypeIndex(Boolean, prop.type);
-  if (booleanIndex > -1) {
-    if (absent && !hasOwn(prop, 'default')) {
-      value = false;
-    } else if (value === '' || value === hyphenate(key)) {
-      // only cast empty string / same name to boolean if
-      // boolean has higher priority
-      var stringIndex = getTypeIndex(String, prop.type);
-      if (stringIndex < 0 || booleanIndex < stringIndex) {
-        value = true;
-      }
-    }
-  }
-  // check default value
-  if (value === undefined) {
-    value = getPropDefaultValue(vm, prop, key);
-    // since the default value is a fresh copy,
-    // make sure to observe it.
-    var prevShouldObserve = shouldObserve;
-    toggleObserving(true);
-    observe(value);
-    toggleObserving(prevShouldObserve);
-  }
-  if (
-    process.env.NODE_ENV !== 'production' &&
-    // skip validation for weex recycle-list child component props
-    !(false)
-  ) {
-    assertProp(prop, key, value, vm, absent);
-  }
-  return value
-}
-
-/**
- * Get the default value of a prop.
- */
-function getPropDefaultValue (vm, prop, key) {
-  // no default, return undefined
-  if (!hasOwn(prop, 'default')) {
-    return undefined
-  }
-  var def = prop.default;
-  // warn against non-factory defaults for Object & Array
-  if (process.env.NODE_ENV !== 'production' && isObject(def)) {
-    warn(
-      'Invalid default value for prop "' + key + '": ' +
-      'Props with type Object/Array must use a factory function ' +
-      'to return the default value.',
-      vm
-    );
-  }
-  // the raw prop value was also undefined from previous render,
-  // return previous default value to avoid unnecessary watcher trigger
-  if (vm && vm.$options.propsData &&
-    vm.$options.propsData[key] === undefined &&
-    vm._props[key] !== undefined
-  ) {
-    return vm._props[key]
-  }
-  // call factory function for non-Function types
-  // a value is Function if its prototype is function even across different execution context
-  return typeof def === 'function' && getType(prop.type) !== 'Function'
-    ? def.call(vm)
-    : def
-}
-
-/**
- * Assert whether a prop is valid.
- */
-function assertProp (
-  prop,
-  name,
-  value,
-  vm,
-  absent
-) {
-  if (prop.required && absent) {
-    warn(
-      'Missing required prop: "' + name + '"',
-      vm
-    );
-    return
-  }
-  if (value == null && !prop.required) {
-    return
-  }
-  var type = prop.type;
-  var valid = !type || type === true;
-  var expectedTypes = [];
-  if (type) {
-    if (!Array.isArray(type)) {
-      type = [type];
-    }
-    for (var i = 0; i < type.length && !valid; i++) {
-      var assertedType = assertType(value, type[i]);
-      expectedTypes.push(assertedType.expectedType || '');
-      valid = assertedType.valid;
-    }
-  }
-
-  if (!valid) {
-    warn(
-      getInvalidTypeMessage(name, value, expectedTypes),
-      vm
-    );
-    return
-  }
-  var validator = prop.validator;
-  if (validator) {
-    if (!validator(value)) {
-      warn(
-        'Invalid prop: custom validator check failed for prop "' + name + '".',
-        vm
-      );
-    }
-  }
-}
-
-var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
-
-function assertType (value, type) {
-  var valid;
-  var expectedType = getType(type);
-  if (simpleCheckRE.test(expectedType)) {
-    var t = typeof value;
-    valid = t === expectedType.toLowerCase();
-    // for primitive wrapper objects
-    if (!valid && t === 'object') {
-      valid = value instanceof type;
-    }
-  } else if (expectedType === 'Object') {
-    valid = isPlainObject(value);
-  } else if (expectedType === 'Array') {
-    valid = Array.isArray(value);
-  } else {
-    valid = value instanceof type;
-  }
-  return {
-    valid: valid,
-    expectedType: expectedType
-  }
-}
-
-/**
- * Use function string name to check built-in types,
- * because a simple equality check will fail when running
- * across different vms / iframes.
- */
-function getType (fn) {
-  var match = fn && fn.toString().match(/^\s*function (\w+)/);
-  return match ? match[1] : ''
-}
-
-function isSameType (a, b) {
-  return getType(a) === getType(b)
-}
-
-function getTypeIndex (type, expectedTypes) {
-  if (!Array.isArray(expectedTypes)) {
-    return isSameType(expectedTypes, type) ? 0 : -1
-  }
-  for (var i = 0, len = expectedTypes.length; i < len; i++) {
-    if (isSameType(expectedTypes[i], type)) {
-      return i
-    }
-  }
-  return -1
-}
-
-function getInvalidTypeMessage (name, value, expectedTypes) {
-  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
-    " Expected " + (expectedTypes.map(capitalize).join(', '));
-  var expectedType = expectedTypes[0];
-  var receivedType = toRawType(value);
-  var expectedValue = styleValue(value, expectedType);
-  var receivedValue = styleValue(value, receivedType);
-  // check if we need to specify expected value
-  if (expectedTypes.length === 1 &&
-      isExplicable(expectedType) &&
-      !isBoolean(expectedType, receivedType)) {
-    message += " with value " + expectedValue;
-  }
-  message += ", got " + receivedType + " ";
-  // check if we need to specify received value
-  if (isExplicable(receivedType)) {
-    message += "with value " + receivedValue + ".";
-  }
-  return message
-}
-
-function styleValue (value, type) {
-  if (type === 'String') {
-    return ("\"" + value + "\"")
-  } else if (type === 'Number') {
-    return ("" + (Number(value)))
-  } else {
-    return ("" + value)
-  }
-}
-
-function isExplicable (value) {
-  var explicitTypes = ['string', 'number', 'boolean'];
-  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
-}
-
-function isBoolean () {
-  var args = [], len = arguments.length;
-  while ( len-- ) args[ len ] = arguments[ len ];
-
-  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
-}
-
-/*  */
-
-function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
-          }
-        }
-      }
-    }
-  }
-  globalHandleError(err, vm, info);
-}
-
-function globalHandleError (err, vm, info) {
-  if (config.errorHandler) {
-    try {
-      return config.errorHandler.call(null, err, vm, info)
-    } catch (e) {
-      logError(e, null, 'config.errorHandler');
-    }
-  }
-  logError(err, vm, info);
-}
-
-function logError (err, vm, info) {
-  if (process.env.NODE_ENV !== 'production') {
-    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
-  }
-  /* istanbul ignore else */
-  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
-    console.error(err);
-  } else {
-    throw err
-  }
-}
-
-/*  */
-
-var callbacks = [];
-var pending = false;
-
-function flushCallbacks () {
-  pending = false;
-  var copies = callbacks.slice(0);
-  callbacks.length = 0;
-  for (var i = 0; i < copies.length; i++) {
-    copies[i]();
-  }
-}
-
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
-/* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) {
-  var p = Promise.resolve();
-  microTimerFunc = function () {
-    p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
-    // it can get stuck in a weird state where callbacks are pushed into the
-    // microtask queue but the queue isn't being flushed, until the browser
-    // needs to do some other work, e.g. handle a timer. Therefore we can
-    // "force" the microtask queue to be flushed by adding an empty timer.
-    if (isIOS) { setTimeout(noop); }
-  };
-} else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;
-    }
-  })
-}
-
-function nextTick (cb, ctx) {
-  var _resolve;
-  callbacks.push(function () {
-    if (cb) {
-      try {
-        cb.call(ctx);
-      } catch (e) {
-        handleError(e, ctx, 'nextTick');
-      }
-    } else if (_resolve) {
-      _resolve(ctx);
-    }
-  });
-  if (!pending) {
-    pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
-  }
-  // $flow-disable-line
-  if (!cb && typeof Promise !== 'undefined') {
-    return new Promise(function (resolve) {
-      _resolve = resolve;
-    })
-  }
-}
-
-/*  */
-
-/* not type checking this file because flow doesn't play well with Proxy */
-
-var initProxy;
-
-if (process.env.NODE_ENV !== 'production') {
-  var allowedGlobals = makeMap(
-    'Infinity,undefined,NaN,isFinite,isNaN,' +
-    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
-    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
-    'require' // for Webpack/Browserify
-  );
-
-  var warnNonPresent = function (target, key) {
-    warn(
-      "Property or method \"" + key + "\" is not defined on the instance but " +
-      'referenced during render. Make sure that this property is reactive, ' +
-      'either in the data option, or for class-based components, by ' +
-      'initializing the property. ' +
-      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
-      target
-    );
-  };
-
-  var warnReservedPrefix = function (target, key) {
-    warn(
-      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
-      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
-      'prevent conflicts with Vue internals' +
-      'See: https://vuejs.org/v2/api/#data',
-      target
-    );
-  };
-
-  var hasProxy =
-    typeof Proxy !== 'undefined' && isNative(Proxy);
-
-  if (hasProxy) {
-    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
-    config.keyCodes = new Proxy(config.keyCodes, {
-      set: function set (target, key, value) {
-        if (isBuiltInModifier(key)) {
-          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
-          return false
-        } else {
-          target[key] = value;
-          return true
-        }
-      }
-    });
-  }
-
-  var hasHandler = {
-    has: function has (target, key) {
-      var has = key in target;
-      var isAllowed = allowedGlobals(key) ||
-        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
-      if (!has && !isAllowed) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return has || !isAllowed
-    }
-  };
-
-  var getHandler = {
-    get: function get (target, key) {
-      if (typeof key === 'string' && !(key in target)) {
-        if (key in target.$data) { warnReservedPrefix(target, key); }
-        else { warnNonPresent(target, key); }
-      }
-      return target[key]
-    }
-  };
-
-  initProxy = function initProxy (vm) {
-    if (hasProxy) {
-      // determine which proxy handler to use
-      var options = vm.$options;
-      var handlers = options.render && options.render._withStripped
-        ? getHandler
-        : hasHandler;
-      vm._renderProxy = new Proxy(vm, handlers);
-    } else {
-      vm._renderProxy = vm;
-    }
-  };
-}
-
-/*  */
-
-var seenObjects = new _Set();
-
-/**
- * Recursively traverse an object to evoke all converted
- * getters, so that every nested property inside the object
- * is collected as a "deep" dependency.
- */
-function traverse (val) {
-  _traverse(val, seenObjects);
-  seenObjects.clear();
-}
-
-function _traverse (val, seen) {
-  var i, keys;
-  var isA = Array.isArray(val);
-  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
-    return
-  }
-  if (val.__ob__) {
-    var depId = val.__ob__.dep.id;
-    if (seen.has(depId)) {
-      return
-    }
-    seen.add(depId);
-  }
-  if (isA) {
-    i = val.length;
-    while (i--) { _traverse(val[i], seen); }
-  } else {
-    keys = Object.keys(val);
-    i = keys.length;
-    while (i--) { _traverse(val[keys[i]], seen); }
-  }
-}
-
-var mark;
-var measure;
-
-if (process.env.NODE_ENV !== 'production') {
-  var perf = inBrowser && window.performance;
-  /* istanbul ignore if */
-  if (
-    perf &&
-    perf.mark &&
-    perf.measure &&
-    perf.clearMarks &&
-    perf.clearMeasures
-  ) {
-    mark = function (tag) { return perf.mark(tag); };
-    measure = function (name, startTag, endTag) {
-      perf.measure(name, startTag, endTag);
-      perf.clearMarks(startTag);
-      perf.clearMarks(endTag);
-      perf.clearMeasures(name);
-    };
-  }
-}
-
-/*  */
-
-var normalizeEvent = cached(function (name) {
-  var passive = name.charAt(0) === '&';
-  name = passive ? name.slice(1) : name;
-  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
-  name = once$$1 ? name.slice(1) : name;
-  var capture = name.charAt(0) === '!';
-  name = capture ? name.slice(1) : name;
-  return {
-    name: name,
-    once: once$$1,
-    capture: capture,
-    passive: passive
-  }
-});
-
-function createFnInvoker (fns) {
-  function invoker () {
-    var arguments$1 = arguments;
-
-    var fns = invoker.fns;
-    if (Array.isArray(fns)) {
-      var cloned = fns.slice();
-      for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
-      }
-    } else {
-      // return handler return value for single handlers
-      return fns.apply(null, arguments)
-    }
-  }
-  invoker.fns = fns;
-  return invoker
-}
-
-function updateListeners (
-  on,
-  oldOn,
-  add,
-  remove$$1,
-  createOnceHandler,
-  vm
-) {
-  var name, def$$1, cur, old, event;
-  for (name in on) {
-    def$$1 = cur = on[name];
-    old = oldOn[name];
-    event = normalizeEvent(name);
-    if (isUndef(cur)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
-        vm
-      );
-    } else if (isUndef(old)) {
-      if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
-      }
-      if (isTrue(event.once)) {
-        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
-      }
-      add(event.name, cur, event.capture, event.passive, event.params);
-    } else if (cur !== old) {
-      old.fns = cur;
-      on[name] = old;
-    }
-  }
-  for (name in oldOn) {
-    if (isUndef(on[name])) {
-      event = normalizeEvent(name);
-      remove$$1(event.name, oldOn[name], event.capture);
-    }
-  }
-}
-
-/*  */
-
-function mergeVNodeHook (def, hookKey, hook) {
-  if (def instanceof VNode) {
-    def = def.data.hook || (def.data.hook = {});
-  }
-  var invoker;
-  var oldHook = def[hookKey];
-
-  function wrappedHook () {
-    hook.apply(this, arguments);
-    // important: remove merged hook to ensure it's called only once
-    // and prevent memory leak
-    remove(invoker.fns, wrappedHook);
-  }
-
-  if (isUndef(oldHook)) {
-    // no existing hook
-    invoker = createFnInvoker([wrappedHook]);
-  } else {
-    /* istanbul ignore if */
-    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
-      // already a merged invoker
-      invoker = oldHook;
-      invoker.fns.push(wrappedHook);
-    } else {
-      // existing plain hook
-      invoker = createFnInvoker([oldHook, wrappedHook]);
-    }
-  }
-
-  invoker.merged = true;
-  def[hookKey] = invoker;
-}
-
-/*  */
-
-function extractPropsFromVNodeData (
-  data,
-  Ctor,
-  tag
-) {
-  // we are only extracting raw values here.
-  // validation and default values are handled in the child
-  // component itself.
-  var propOptions = Ctor.options.props;
-  if (isUndef(propOptions)) {
-    return
-  }
-  var res = {};
-  var attrs = data.attrs;
-  var props = data.props;
-  if (isDef(attrs) || isDef(props)) {
-    for (var key in propOptions) {
-      var altKey = hyphenate(key);
-      if (process.env.NODE_ENV !== 'production') {
-        var keyInLowerCase = key.toLowerCase();
-        if (
-          key !== keyInLowerCase &&
-          attrs && hasOwn(attrs, keyInLowerCase)
-        ) {
-          tip(
-            "Prop \"" + keyInLowerCase + "\" is passed to component " +
-            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
-            " \"" + key + "\". " +
-            "Note that HTML attributes are case-insensitive and camelCased " +
-            "props need to use their kebab-case equivalents when using in-DOM " +
-            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
-          );
-        }
-      }
-      checkProp(res, props, key, altKey, true) ||
-      checkProp(res, attrs, key, altKey, false);
-    }
-  }
-  return res
-}
-
-function checkProp (
-  res,
-  hash,
-  key,
-  altKey,
-  preserve
-) {
-  if (isDef(hash)) {
-    if (hasOwn(hash, key)) {
-      res[key] = hash[key];
-      if (!preserve) {
-        delete hash[key];
-      }
-      return true
-    } else if (hasOwn(hash, altKey)) {
-      res[key] = hash[altKey];
-      if (!preserve) {
-        delete hash[altKey];
-      }
-      return true
-    }
-  }
-  return false
-}
-
-/*  */
-
-// The template compiler attempts to minimize the need for normalization by
-// statically analyzing the template at compile time.
-//
-// For plain HTML markup, normalization can be completely skipped because the
-// generated render function is guaranteed to return Array<VNode>. There are
-// two cases where extra normalization is needed:
-
-// 1. When the children contains components - because a functional component
-// may return an Array instead of a single root. In this case, just a simple
-// normalization is needed - if any child is an Array, we flatten the whole
-// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
-// because functional components already normalize their own children.
-function simpleNormalizeChildren (children) {
-  for (var i = 0; i < children.length; i++) {
-    if (Array.isArray(children[i])) {
-      return Array.prototype.concat.apply([], children)
-    }
-  }
-  return children
-}
-
-// 2. When the children contains constructs that always generated nested Arrays,
-// e.g. <template>, <slot>, v-for, or when the children is provided by user
-// with hand-written render functions / JSX. In such cases a full normalization
-// is needed to cater to all possible types of children values.
-function normalizeChildren (children) {
-  return isPrimitive(children)
-    ? [createTextVNode(children)]
-    : Array.isArray(children)
-      ? normalizeArrayChildren(children)
-      : undefined
-}
-
-function isTextNode (node) {
-  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
-}
-
-function normalizeArrayChildren (children, nestedIndex) {
-  var res = [];
-  var i, c, lastIndex, last;
-  for (i = 0; i < children.length; i++) {
-    c = children[i];
-    if (isUndef(c) || typeof c === 'boolean') { continue }
-    lastIndex = res.length - 1;
-    last = res[lastIndex];
-    //  nested
-    if (Array.isArray(c)) {
-      if (c.length > 0) {
-        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
-        // merge adjacent text nodes
-        if (isTextNode(c[0]) && isTextNode(last)) {
-          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
-          c.shift();
-        }
-        res.push.apply(res, c);
-      }
-    } else if (isPrimitive(c)) {
-      if (isTextNode(last)) {
-        // merge adjacent text nodes
-        // this is necessary for SSR hydration because text nodes are
-        // essentially merged when rendered to HTML strings
-        res[lastIndex] = createTextVNode(last.text + c);
-      } else if (c !== '') {
-        // convert primitive to vnode
-        res.push(createTextVNode(c));
-      }
-    } else {
-      if (isTextNode(c) && isTextNode(last)) {
-        // merge adjacent text nodes
-        res[lastIndex] = createTextVNode(last.text + c.text);
-      } else {
-        // default key for nested array children (likely generated by v-for)
-        if (isTrue(children._isVList) &&
-          isDef(c.tag) &&
-          isUndef(c.key) &&
-          isDef(nestedIndex)) {
-          c.key = "__vlist" + nestedIndex + "_" + i + "__";
-        }
-        res.push(c);
-      }
-    }
-  }
-  return res
-}
-
-/*  */
-
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
-}
-
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      } else {
-        contexts.length = 0;
-      }
-    });
-
-    var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (typeof res.then === 'function') {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                process.env.NODE_ENV !== 'production'
-                  ? ("timeout (" + (res.timeout) + "ms)")
-                  : null
-              );
-            }
-          }, res.timeout);
-        }
-      }
-    }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
-  }
-}
-
-/*  */
-
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
-
-/*  */
-
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
-      }
-    }
-  }
-}
-
-/*  */
-
-/*  */
-
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
-  }
-}
-
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
-
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        vm.$off(event[i$1], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
-    }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    if (process.env.NODE_ENV !== 'production') {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
-      }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
-      }
-    }
-    return vm
-  };
-}
-
-/*  */
-
-
-
-/**
- * Runtime helper for resolving raw children VNodes into a slot object.
- */
-function resolveSlots (
-  children,
-  context
-) {
-  var slots = {};
-  if (!children) {
-    return slots
-  }
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
-      }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
-  }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
-
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  res
-) {
-  res = res || {};
-  for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
-    } else {
-      res[fns[i].key] = fns[i].fn;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
-}
-
-function initLifecycle (vm) {
-  var options = vm.$options;
-
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
-  }
-
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
-}
-
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
-    } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
-
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
-
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
-}
-
-function mountComponent (
-  vm,
-  el,
-  hydrating
-) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    if (process.env.NODE_ENV !== 'production') {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
-  }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
-
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
-
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
-  }
-
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
-      }
-    }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
-  }
-  return vm
-}
-
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
-  }
-
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
-  );
-
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
-
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
-
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
-
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
-  }
-
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
-
-  // resolve slots + force update if has children
-  if (hasChildren) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
-
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
-  }
-}
-
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
-  }
-  return false
-}
-
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'activated');
-  }
-}
-
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
-  }
-}
-
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
-
-/*  */
-
-var MAX_UPDATE_COUNT = 100;
-
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
-
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
-
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  flushing = true;
-  var watcher, id;
-
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
-
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
-    }
-  }
-
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
-
-  resetSchedulerState();
-
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
-
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
-  }
-}
-
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
-    }
-  }
-}
-
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
-}
-
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (process.env.NODE_ENV !== 'production' && !config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
-    }
-  }
-}
-
-/*  */
-
-
-
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
-) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
-  }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
-  }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
-  }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
-  }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
-    }
-  }
-};
-
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
-  }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
-
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
-  /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
-  }
-};
-
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
-
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
-
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
-
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
-    }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
-    }
-    this.active = false;
-  }
-};
-
-/*  */
-
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
-
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
-  }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
-  }
-}
-
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
-  }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
-      }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    } else {
-      defineReactive$$1(props, key, value);
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
-
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
-
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    process.env.NODE_ENV !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
-      }
-    }
-    if (props && hasOwn(props, key)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
-      );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
-
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
-
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production' && getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
-
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
-
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else if (process.env.NODE_ENV !== 'production') {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
-      }
-    }
-  }
-}
-
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
-
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
-  }
-}
-
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
-}
-
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
-}
-
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
-    }
-  }
-}
-
-function createWatcher (
-  vm,
-  expOrFn,
-  handler,
-  options
-) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
-}
-
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
-
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
-
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
-    var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
-      }
-    }
-    return function unwatchFn () {
-      watcher.teardown();
-    }
-  };
-}
-
-/*  */
-
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
-
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      } else {
-        defineReactive$$1(vm, key, result[key]);
-      }
-    });
-    toggleObserving(true);
-  }
-}
-
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
-      : Object.keys(inject);
-
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else if (process.env.NODE_ENV !== 'production') {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
-    }
-    return result
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
-    }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
-  }
-
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
-
-/*  */
-
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
-  }
-}
-
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
-) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
-}
-
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
-
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
-
-/*  */
-
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
-
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
-
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
-  }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
-
-/*  */
-
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-}
-
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
-}
-
-installRenderHelpers(FunctionalRenderContext.prototype);
-
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
-
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
-
-  var vnode = options.render.call(null, renderContext._c, renderContext);
-
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-    }
-    return res
-  }
-}
-
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (process.env.NODE_ENV !== 'production') {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
-}
-
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
-}
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
-
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  }
-};
-
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
-  }
-
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
-    }
-  }
-
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
-
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
-    }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
-  } else {
-    on[event] = callback;
-  }
-}
-
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
-
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
-    }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
-}
-
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
-
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
-
-  /* istanbul ignore else */
-  if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
-  }
-}
-
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
-
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
-
-  Vue.prototype._render = function () {
-    var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
-    }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
-      }
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
-    }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
-  };
-}
-
-/*  */
-
-var uid$3 = 0;
-
-function initMixin (Vue) {
-  Vue.prototype._init = function (options) {
-    var vm = this;
-    // a uid
-    vm._uid = uid$3++;
-
-    var startTag, endTag;
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      startTag = "vue-perf-start:" + (vm._uid);
-      endTag = "vue-perf-end:" + (vm._uid);
-      mark(startTag);
-    }
-
-    // a flag to avoid this being observed
-    vm._isVue = true;
-    // merge options
-    if (options && options._isComponent) {
-      // optimize internal component instantiation
-      // since dynamic options merging is pretty slow, and none of the
-      // internal component options needs special treatment.
-      initInternalComponent(vm, options);
-    } else {
-      vm.$options = mergeOptions(
-        resolveConstructorOptions(vm.constructor),
-        options || {},
-        vm
-      );
-    }
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      initProxy(vm);
-    } else {
-      vm._renderProxy = vm;
-    }
-    // expose real self
-    vm._self = vm;
-    initLifecycle(vm);
-    initEvents(vm);
-    initRender(vm);
-    callHook(vm, 'beforeCreate');
-    initInjections(vm); // resolve injections before data/props
-    initState(vm);
-    initProvide(vm); // resolve provide after data/props
-    callHook(vm, 'created');
-
-    /* istanbul ignore if */
-    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-      vm._name = formatComponentName(vm, false);
-      mark(endTag);
-      measure(("vue " + (vm._name) + " init"), startTag, endTag);
-    }
-
-    if (vm.$options.el) {
-      vm.$mount(vm.$options.el);
-    }
-  };
-}
-
-function initInternalComponent (vm, options) {
-  var opts = vm.$options = Object.create(vm.constructor.options);
-  // doing this because it's faster than dynamic enumeration.
-  var parentVnode = options._parentVnode;
-  opts.parent = options.parent;
-  opts._parentVnode = parentVnode;
-
-  var vnodeComponentOptions = parentVnode.componentOptions;
-  opts.propsData = vnodeComponentOptions.propsData;
-  opts._parentListeners = vnodeComponentOptions.listeners;
-  opts._renderChildren = vnodeComponentOptions.children;
-  opts._componentTag = vnodeComponentOptions.tag;
-
-  if (options.render) {
-    opts.render = options.render;
-    opts.staticRenderFns = options.staticRenderFns;
-  }
-}
-
-function resolveConstructorOptions (Ctor) {
-  var options = Ctor.options;
-  if (Ctor.super) {
-    var superOptions = resolveConstructorOptions(Ctor.super);
-    var cachedSuperOptions = Ctor.superOptions;
-    if (superOptions !== cachedSuperOptions) {
-      // super option changed,
-      // need to resolve new options.
-      Ctor.superOptions = superOptions;
-      // check if there are any late-modified/attached options (#4976)
-      var modifiedOptions = resolveModifiedOptions(Ctor);
-      // update base extend options
-      if (modifiedOptions) {
-        extend(Ctor.extendOptions, modifiedOptions);
-      }
-      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
-      if (options.name) {
-        options.components[options.name] = Ctor;
-      }
-    }
-  }
-  return options
-}
-
-function resolveModifiedOptions (Ctor) {
-  var modified;
-  var latest = Ctor.options;
-  var sealed = Ctor.sealedOptions;
-  for (var key in latest) {
-    if (latest[key] !== sealed[key]) {
-      if (!modified) { modified = {}; }
-      modified[key] = latest[key];
-    }
-  }
-  return modified
-}
-
-function Vue (options) {
-  if (process.env.NODE_ENV !== 'production' &&
-    !(this instanceof Vue)
-  ) {
-    warn('Vue is a constructor and should be called with the `new` keyword');
-  }
-  this._init(options);
-}
-
-initMixin(Vue);
-stateMixin(Vue);
-eventsMixin(Vue);
-lifecycleMixin(Vue);
-renderMixin(Vue);
-
-/*  */
-
-function initUse (Vue) {
-  Vue.use = function (plugin) {
-    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
-    if (installedPlugins.indexOf(plugin) > -1) {
-      return this
-    }
-
-    // additional parameters
-    var args = toArray(arguments, 1);
-    args.unshift(this);
-    if (typeof plugin.install === 'function') {
-      plugin.install.apply(plugin, args);
-    } else if (typeof plugin === 'function') {
-      plugin.apply(null, args);
-    }
-    installedPlugins.push(plugin);
-    return this
-  };
-}
-
-/*  */
-
-function initMixin$1 (Vue) {
-  Vue.mixin = function (mixin) {
-    this.options = mergeOptions(this.options, mixin);
-    return this
-  };
-}
-
-/*  */
-
-function initExtend (Vue) {
-  /**
-   * Each instance constructor, including Vue, has a unique
-   * cid. This enables us to create wrapped "child
-   * constructors" for prototypal inheritance and cache them.
-   */
-  Vue.cid = 0;
-  var cid = 1;
-
-  /**
-   * Class inheritance
-   */
-  Vue.extend = function (extendOptions) {
-    extendOptions = extendOptions || {};
-    var Super = this;
-    var SuperId = Super.cid;
-    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
-    if (cachedCtors[SuperId]) {
-      return cachedCtors[SuperId]
-    }
-
-    var name = extendOptions.name || Super.options.name;
-    if (process.env.NODE_ENV !== 'production' && name) {
-      validateComponentName(name);
-    }
-
-    var Sub = function VueComponent (options) {
-      this._init(options);
-    };
-    Sub.prototype = Object.create(Super.prototype);
-    Sub.prototype.constructor = Sub;
-    Sub.cid = cid++;
-    Sub.options = mergeOptions(
-      Super.options,
-      extendOptions
-    );
-    Sub['super'] = Super;
-
-    // For props and computed properties, we define the proxy getters on
-    // the Vue instances at extension time, on the extended prototype. This
-    // avoids Object.defineProperty calls for each instance created.
-    if (Sub.options.props) {
-      initProps$1(Sub);
-    }
-    if (Sub.options.computed) {
-      initComputed$1(Sub);
-    }
-
-    // allow further extension/mixin/plugin usage
-    Sub.extend = Super.extend;
-    Sub.mixin = Super.mixin;
-    Sub.use = Super.use;
-
-    // create asset registers, so extended classes
-    // can have their private assets too.
-    ASSET_TYPES.forEach(function (type) {
-      Sub[type] = Super[type];
-    });
-    // enable recursive self-lookup
-    if (name) {
-      Sub.options.components[name] = Sub;
-    }
-
-    // keep a reference to the super options at extension time.
-    // later at instantiation we can check if Super's options have
-    // been updated.
-    Sub.superOptions = Super.options;
-    Sub.extendOptions = extendOptions;
-    Sub.sealedOptions = extend({}, Sub.options);
-
-    // cache constructor
-    cachedCtors[SuperId] = Sub;
-    return Sub
-  };
-}
-
-function initProps$1 (Comp) {
-  var props = Comp.options.props;
-  for (var key in props) {
-    proxy(Comp.prototype, "_props", key);
-  }
-}
-
-function initComputed$1 (Comp) {
-  var computed = Comp.options.computed;
-  for (var key in computed) {
-    defineComputed(Comp.prototype, key, computed[key]);
-  }
-}
-
-/*  */
-
-function initAssetRegisters (Vue) {
-  /**
-   * Create asset registration methods.
-   */
-  ASSET_TYPES.forEach(function (type) {
-    Vue[type] = function (
-      id,
-      definition
-    ) {
-      if (!definition) {
-        return this.options[type + 's'][id]
-      } else {
-        /* istanbul ignore if */
-        if (process.env.NODE_ENV !== 'production' && type === 'component') {
-          validateComponentName(id);
-        }
-        if (type === 'component' && isPlainObject(definition)) {
-          definition.name = definition.name || id;
-          definition = this.options._base.extend(definition);
-        }
-        if (type === 'directive' && typeof definition === 'function') {
-          definition = { bind: definition, update: definition };
-        }
-        this.options[type + 's'][id] = definition;
-        return definition
-      }
-    };
-  });
-}
-
-/*  */
-
-
-
-function getComponentName (opts) {
-  return opts && (opts.Ctor.options.name || opts.tag)
-}
-
-function matches (pattern, name) {
-  if (Array.isArray(pattern)) {
-    return pattern.indexOf(name) > -1
-  } else if (typeof pattern === 'string') {
-    return pattern.split(',').indexOf(name) > -1
-  } else if (isRegExp(pattern)) {
-    return pattern.test(name)
-  }
-  /* istanbul ignore next */
-  return false
-}
-
-function pruneCache (keepAliveInstance, filter) {
-  var cache = keepAliveInstance.cache;
-  var keys = keepAliveInstance.keys;
-  var _vnode = keepAliveInstance._vnode;
-  for (var key in cache) {
-    var cachedNode = cache[key];
-    if (cachedNode) {
-      var name = getComponentName(cachedNode.componentOptions);
-      if (name && !filter(name)) {
-        pruneCacheEntry(cache, key, keys, _vnode);
-      }
-    }
-  }
-}
-
-function pruneCacheEntry (
-  cache,
-  key,
-  keys,
-  current
-) {
-  var cached$$1 = cache[key];
-  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
-    cached$$1.componentInstance.$destroy();
-  }
-  cache[key] = null;
-  remove(keys, key);
-}
-
-var patternTypes = [String, RegExp, Array];
-
-var KeepAlive = {
-  name: 'keep-alive',
-  abstract: true,
-
-  props: {
-    include: patternTypes,
-    exclude: patternTypes,
-    max: [String, Number]
-  },
-
-  created: function created () {
-    this.cache = Object.create(null);
-    this.keys = [];
-  },
-
-  destroyed: function destroyed () {
-    for (var key in this.cache) {
-      pruneCacheEntry(this.cache, key, this.keys);
-    }
-  },
-
-  mounted: function mounted () {
-    var this$1 = this;
-
-    this.$watch('include', function (val) {
-      pruneCache(this$1, function (name) { return matches(val, name); });
-    });
-    this.$watch('exclude', function (val) {
-      pruneCache(this$1, function (name) { return !matches(val, name); });
-    });
-  },
-
-  render: function render () {
-    var slot = this.$slots.default;
-    var vnode = getFirstComponentChild(slot);
-    var componentOptions = vnode && vnode.componentOptions;
-    if (componentOptions) {
-      // check pattern
-      var name = getComponentName(componentOptions);
-      var ref = this;
-      var include = ref.include;
-      var exclude = ref.exclude;
-      if (
-        // not included
-        (include && (!name || !matches(include, name))) ||
-        // excluded
-        (exclude && name && matches(exclude, name))
-      ) {
-        return vnode
-      }
-
-      var ref$1 = this;
-      var cache = ref$1.cache;
-      var keys = ref$1.keys;
-      var key = vnode.key == null
-        // same constructor may get registered as different local components
-        // so cid alone is not enough (#3269)
-        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
-        : vnode.key;
-      if (cache[key]) {
-        vnode.componentInstance = cache[key].componentInstance;
-        // make current key freshest
-        remove(keys, key);
-        keys.push(key);
-      } else {
-        cache[key] = vnode;
-        keys.push(key);
-        // prune oldest entry
-        if (this.max && keys.length > parseInt(this.max)) {
-          pruneCacheEntry(cache, keys[0], keys, this._vnode);
-        }
-      }
-
-      vnode.data.keepAlive = true;
-    }
-    return vnode || (slot && slot[0])
-  }
-};
-
-var builtInComponents = {
-  KeepAlive: KeepAlive
-};
-
-/*  */
-
-function initGlobalAPI (Vue) {
-  // config
-  var configDef = {};
-  configDef.get = function () { return config; };
-  if (process.env.NODE_ENV !== 'production') {
-    configDef.set = function () {
-      warn(
-        'Do not replace the Vue.config object, set individual fields instead.'
-      );
-    };
-  }
-  Object.defineProperty(Vue, 'config', configDef);
-
-  // exposed util methods.
-  // NOTE: these are not considered part of the public API - avoid relying on
-  // them unless you are aware of the risk.
-  Vue.util = {
-    warn: warn,
-    extend: extend,
-    mergeOptions: mergeOptions,
-    defineReactive: defineReactive$$1
-  };
-
-  Vue.set = set;
-  Vue.delete = del;
-  Vue.nextTick = nextTick;
-
-  Vue.options = Object.create(null);
-  ASSET_TYPES.forEach(function (type) {
-    Vue.options[type + 's'] = Object.create(null);
-  });
-
-  // this is used to identify the "base" constructor to extend all plain-object
-  // components with in Weex's multi-instance scenarios.
-  Vue.options._base = Vue;
-
-  extend(Vue.options.components, builtInComponents);
-
-  initUse(Vue);
-  initMixin$1(Vue);
-  initExtend(Vue);
-  initAssetRegisters(Vue);
-}
-
-initGlobalAPI(Vue);
-
-Object.defineProperty(Vue.prototype, '$isServer', {
-  get: isServerRendering
-});
-
-Object.defineProperty(Vue.prototype, '$ssrContext', {
-  get: function get () {
-    /* istanbul ignore next */
-    return this.$vnode && this.$vnode.ssrContext
-  }
-});
-
-// expose FunctionalRenderContext for ssr runtime helper installation
-Object.defineProperty(Vue, 'FunctionalRenderContext', {
-  value: FunctionalRenderContext
-});
-
-Vue.version = '2.5.22';
-
-/*  */
-
-// these are reserved for web because they are directly compiled away
-// during template compilation
-var isReservedAttr = makeMap('style,class');
-
-// attributes that should be using props for binding
-var acceptValue = makeMap('input,textarea,option,select,progress');
-var mustUseProp = function (tag, type, attr) {
-  return (
-    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
-    (attr === 'selected' && tag === 'option') ||
-    (attr === 'checked' && tag === 'input') ||
-    (attr === 'muted' && tag === 'video')
-  )
-};
-
-var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
-
-var isBooleanAttr = makeMap(
-  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
-  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
-  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
-  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
-  'required,reversed,scoped,seamless,selected,sortable,translate,' +
-  'truespeed,typemustmatch,visible'
-);
-
-var xlinkNS = 'http://www.w3.org/1999/xlink';
-
-var isXlink = function (name) {
-  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
-};
-
-var getXlinkProp = function (name) {
-  return isXlink(name) ? name.slice(6, name.length) : ''
-};
-
-var isFalsyAttrValue = function (val) {
-  return val == null || val === false
-};
-
-/*  */
-
-function genClassForVnode (vnode) {
-  var data = vnode.data;
-  var parentNode = vnode;
-  var childNode = vnode;
-  while (isDef(childNode.componentInstance)) {
-    childNode = childNode.componentInstance._vnode;
-    if (childNode && childNode.data) {
-      data = mergeClassData(childNode.data, data);
-    }
-  }
-  while (isDef(parentNode = parentNode.parent)) {
-    if (parentNode && parentNode.data) {
-      data = mergeClassData(data, parentNode.data);
-    }
-  }
-  return renderClass(data.staticClass, data.class)
-}
-
-function mergeClassData (child, parent) {
-  return {
-    staticClass: concat(child.staticClass, parent.staticClass),
-    class: isDef(child.class)
-      ? [child.class, parent.class]
-      : parent.class
-  }
-}
-
-function renderClass (
-  staticClass,
-  dynamicClass
-) {
-  if (isDef(staticClass) || isDef(dynamicClass)) {
-    return concat(staticClass, stringifyClass(dynamicClass))
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function concat (a, b) {
-  return a ? b ? (a + ' ' + b) : a : (b || '')
-}
-
-function stringifyClass (value) {
-  if (Array.isArray(value)) {
-    return stringifyArray(value)
-  }
-  if (isObject(value)) {
-    return stringifyObject(value)
-  }
-  if (typeof value === 'string') {
-    return value
-  }
-  /* istanbul ignore next */
-  return ''
-}
-
-function stringifyArray (value) {
-  var res = '';
-  var stringified;
-  for (var i = 0, l = value.length; i < l; i++) {
-    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
-      if (res) { res += ' '; }
-      res += stringified;
-    }
-  }
-  return res
-}
-
-function stringifyObject (value) {
-  var res = '';
-  for (var key in value) {
-    if (value[key]) {
-      if (res) { res += ' '; }
-      res += key;
-    }
-  }
-  return res
-}
-
-/*  */
-
-var namespaceMap = {
-  svg: 'http://www.w3.org/2000/svg',
-  math: 'http://www.w3.org/1998/Math/MathML'
-};
-
-var isHTMLTag = makeMap(
-  'html,body,base,head,link,meta,style,title,' +
-  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
-  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
-  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
-  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
-  'embed,object,param,source,canvas,script,noscript,del,ins,' +
-  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
-  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
-  'output,progress,select,textarea,' +
-  'details,dialog,menu,menuitem,summary,' +
-  'content,element,shadow,template,blockquote,iframe,tfoot'
-);
-
-// this map is intentionally selective, only covering SVG elements that may
-// contain child elements.
-var isSVG = makeMap(
-  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
-  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
-  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
-  true
-);
-
-var isReservedTag = function (tag) {
-  return isHTMLTag(tag) || isSVG(tag)
-};
-
-function getTagNamespace (tag) {
-  if (isSVG(tag)) {
-    return 'svg'
-  }
-  // basic support for MathML
-  // note it doesn't support other MathML elements being component roots
-  if (tag === 'math') {
-    return 'math'
-  }
-}
-
-var unknownElementCache = Object.create(null);
-function isUnknownElement (tag) {
-  /* istanbul ignore if */
-  if (!inBrowser) {
-    return true
-  }
-  if (isReservedTag(tag)) {
-    return false
-  }
-  tag = tag.toLowerCase();
-  /* istanbul ignore if */
-  if (unknownElementCache[tag] != null) {
-    return unknownElementCache[tag]
-  }
-  var el = document.createElement(tag);
-  if (tag.indexOf('-') > -1) {
-    // http://stackoverflow.com/a/28210364/1070244
-    return (unknownElementCache[tag] = (
-      el.constructor === window.HTMLUnknownElement ||
-      el.constructor === window.HTMLElement
-    ))
-  } else {
-    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
-  }
-}
-
-var isTextInputType = makeMap('text,number,password,search,email,tel,url');
-
-/*  */
-
-/**
- * Query an element selector if it's not an element already.
- */
-function query (el) {
-  if (typeof el === 'string') {
-    var selected = document.querySelector(el);
-    if (!selected) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'Cannot find element: ' + el
-      );
-      return document.createElement('div')
-    }
-    return selected
-  } else {
-    return el
-  }
-}
-
-/*  */
-
-function createElement$1 (tagName, vnode) {
-  var elm = document.createElement(tagName);
-  if (tagName !== 'select') {
-    return elm
-  }
-  // false or null will remove the attribute but undefined will not
-  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
-    elm.setAttribute('multiple', 'multiple');
-  }
-  return elm
-}
-
-function createElementNS (namespace, tagName) {
-  return document.createElementNS(namespaceMap[namespace], tagName)
-}
-
-function createTextNode (text) {
-  return document.createTextNode(text)
-}
-
-function createComment (text) {
-  return document.createComment(text)
-}
-
-function insertBefore (parentNode, newNode, referenceNode) {
-  parentNode.insertBefore(newNode, referenceNode);
-}
-
-function removeChild (node, child) {
-  node.removeChild(child);
-}
-
-function appendChild (node, child) {
-  node.appendChild(child);
-}
-
-function parentNode (node) {
-  return node.parentNode
-}
-
-function nextSibling (node) {
-  return node.nextSibling
-}
-
-function tagName (node) {
-  return node.tagName
-}
-
-function setTextContent (node, text) {
-  node.textContent = text;
-}
-
-function setStyleScope (node, scopeId) {
-  node.setAttribute(scopeId, '');
-}
-
-var nodeOps = /*#__PURE__*/Object.freeze({
-  createElement: createElement$1,
-  createElementNS: createElementNS,
-  createTextNode: createTextNode,
-  createComment: createComment,
-  insertBefore: insertBefore,
-  removeChild: removeChild,
-  appendChild: appendChild,
-  parentNode: parentNode,
-  nextSibling: nextSibling,
-  tagName: tagName,
-  setTextContent: setTextContent,
-  setStyleScope: setStyleScope
-});
-
-/*  */
-
-var ref = {
-  create: function create (_, vnode) {
-    registerRef(vnode);
-  },
-  update: function update (oldVnode, vnode) {
-    if (oldVnode.data.ref !== vnode.data.ref) {
-      registerRef(oldVnode, true);
-      registerRef(vnode);
-    }
-  },
-  destroy: function destroy (vnode) {
-    registerRef(vnode, true);
-  }
-};
-
-function registerRef (vnode, isRemoval) {
-  var key = vnode.data.ref;
-  if (!isDef(key)) { return }
-
-  var vm = vnode.context;
-  var ref = vnode.componentInstance || vnode.elm;
-  var refs = vm.$refs;
-  if (isRemoval) {
-    if (Array.isArray(refs[key])) {
-      remove(refs[key], ref);
-    } else if (refs[key] === ref) {
-      refs[key] = undefined;
-    }
-  } else {
-    if (vnode.data.refInFor) {
-      if (!Array.isArray(refs[key])) {
-        refs[key] = [ref];
-      } else if (refs[key].indexOf(ref) < 0) {
-        // $flow-disable-line
-        refs[key].push(ref);
-      }
-    } else {
-      refs[key] = ref;
-    }
-  }
-}
-
-/**
- * Virtual DOM patching algorithm based on Snabbdom by
- * Simon Friis Vindum (@paldepind)
- * Licensed under the MIT License
- * https://github.com/paldepind/snabbdom/blob/master/LICENSE
- *
- * modified by Evan You (@yyx990803)
- *
- * Not type-checking this because this file is perf-critical and the cost
- * of making flow understand it is not worth it.
- */
-
-var emptyNode = new VNode('', {}, []);
-
-var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
-
-function sameVnode (a, b) {
-  return (
-    a.key === b.key && (
-      (
-        a.tag === b.tag &&
-        a.isComment === b.isComment &&
-        isDef(a.data) === isDef(b.data) &&
-        sameInputType(a, b)
-      ) || (
-        isTrue(a.isAsyncPlaceholder) &&
-        a.asyncFactory === b.asyncFactory &&
-        isUndef(b.asyncFactory.error)
-      )
-    )
-  )
-}
-
-function sameInputType (a, b) {
-  if (a.tag !== 'input') { return true }
-  var i;
-  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
-  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
-  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
-}
-
-function createKeyToOldIdx (children, beginIdx, endIdx) {
-  var i, key;
-  var map = {};
-  for (i = beginIdx; i <= endIdx; ++i) {
-    key = children[i].key;
-    if (isDef(key)) { map[key] = i; }
-  }
-  return map
-}
-
-function createPatchFunction (backend) {
-  var i, j;
-  var cbs = {};
-
-  var modules = backend.modules;
-  var nodeOps = backend.nodeOps;
-
-  for (i = 0; i < hooks.length; ++i) {
-    cbs[hooks[i]] = [];
-    for (j = 0; j < modules.length; ++j) {
-      if (isDef(modules[j][hooks[i]])) {
-        cbs[hooks[i]].push(modules[j][hooks[i]]);
-      }
-    }
-  }
-
-  function emptyNodeAt (elm) {
-    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
-  }
-
-  function createRmCb (childElm, listeners) {
-    function remove$$1 () {
-      if (--remove$$1.listeners === 0) {
-        removeNode(childElm);
-      }
-    }
-    remove$$1.listeners = listeners;
-    return remove$$1
-  }
-
-  function removeNode (el) {
-    var parent = nodeOps.parentNode(el);
-    // element may have already been removed due to v-html / v-text
-    if (isDef(parent)) {
-      nodeOps.removeChild(parent, el);
-    }
-  }
-
-  function isUnknownElement$$1 (vnode, inVPre) {
-    return (
-      !inVPre &&
-      !vnode.ns &&
-      !(
-        config.ignoredElements.length &&
-        config.ignoredElements.some(function (ignore) {
-          return isRegExp(ignore)
-            ? ignore.test(vnode.tag)
-            : ignore === vnode.tag
-        })
-      ) &&
-      config.isUnknownElement(vnode.tag)
-    )
-  }
-
-  var creatingElmInVPre = 0;
-
-  function createElm (
-    vnode,
-    insertedVnodeQueue,
-    parentElm,
-    refElm,
-    nested,
-    ownerArray,
-    index
-  ) {
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // This vnode was used in a previous render!
-      // now it's used as a new node, overwriting its elm would cause
-      // potential patch errors down the road when it's used as an insertion
-      // reference node. Instead, we clone the node on-demand before creating
-      // associated DOM element for it.
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    vnode.isRootInsert = !nested; // for transition enter check
-    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
-      return
-    }
-
-    var data = vnode.data;
-    var children = vnode.children;
-    var tag = vnode.tag;
-    if (isDef(tag)) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (data && data.pre) {
-          creatingElmInVPre++;
-        }
-        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
-          warn(
-            'Unknown custom element: <' + tag + '> - did you ' +
-            'register the component correctly? For recursive components, ' +
-            'make sure to provide the "name" option.',
-            vnode.context
-          );
-        }
-      }
-
-      vnode.elm = vnode.ns
-        ? nodeOps.createElementNS(vnode.ns, tag)
-        : nodeOps.createElement(tag, vnode);
-      setScope(vnode);
-
-      /* istanbul ignore if */
-      {
-        createChildren(vnode, children, insertedVnodeQueue);
-        if (isDef(data)) {
-          invokeCreateHooks(vnode, insertedVnodeQueue);
-        }
-        insert(parentElm, vnode.elm, refElm);
-      }
-
-      if (process.env.NODE_ENV !== 'production' && data && data.pre) {
-        creatingElmInVPre--;
-      }
-    } else if (isTrue(vnode.isComment)) {
-      vnode.elm = nodeOps.createComment(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    } else {
-      vnode.elm = nodeOps.createTextNode(vnode.text);
-      insert(parentElm, vnode.elm, refElm);
-    }
-  }
-
-  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i = vnode.data;
-    if (isDef(i)) {
-      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
-      if (isDef(i = i.hook) && isDef(i = i.init)) {
-        i(vnode, false /* hydrating */);
-      }
-      // after calling the init hook, if the vnode is a child component
-      // it should've created a child instance and mounted it. the child
-      // component also has set the placeholder vnode's elm.
-      // in that case we can just return the element and be done.
-      if (isDef(vnode.componentInstance)) {
-        initComponent(vnode, insertedVnodeQueue);
-        insert(parentElm, vnode.elm, refElm);
-        if (isTrue(isReactivated)) {
-          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
-        }
-        return true
-      }
-    }
-  }
-
-  function initComponent (vnode, insertedVnodeQueue) {
-    if (isDef(vnode.data.pendingInsert)) {
-      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
-      vnode.data.pendingInsert = null;
-    }
-    vnode.elm = vnode.componentInstance.$el;
-    if (isPatchable(vnode)) {
-      invokeCreateHooks(vnode, insertedVnodeQueue);
-      setScope(vnode);
-    } else {
-      // empty component root.
-      // skip all element-related modules except for ref (#3455)
-      registerRef(vnode);
-      // make sure to invoke the insert hook
-      insertedVnodeQueue.push(vnode);
-    }
-  }
-
-  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
-    var i;
-    // hack for #4339: a reactivated component with inner transition
-    // does not trigger because the inner node's created hooks are not called
-    // again. It's not ideal to involve module-specific logic in here but
-    // there doesn't seem to be a better way to do it.
-    var innerNode = vnode;
-    while (innerNode.componentInstance) {
-      innerNode = innerNode.componentInstance._vnode;
-      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
-        for (i = 0; i < cbs.activate.length; ++i) {
-          cbs.activate[i](emptyNode, innerNode);
-        }
-        insertedVnodeQueue.push(innerNode);
-        break
-      }
-    }
-    // unlike a newly created component,
-    // a reactivated keep-alive component doesn't insert itself
-    insert(parentElm, vnode.elm, refElm);
-  }
-
-  function insert (parent, elm, ref$$1) {
-    if (isDef(parent)) {
-      if (isDef(ref$$1)) {
-        if (nodeOps.parentNode(ref$$1) === parent) {
-          nodeOps.insertBefore(parent, elm, ref$$1);
-        }
-      } else {
-        nodeOps.appendChild(parent, elm);
-      }
-    }
-  }
-
-  function createChildren (vnode, children, insertedVnodeQueue) {
-    if (Array.isArray(children)) {
-      if (process.env.NODE_ENV !== 'production') {
-        checkDuplicateKeys(children);
-      }
-      for (var i = 0; i < children.length; ++i) {
-        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
-      }
-    } else if (isPrimitive(vnode.text)) {
-      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
-    }
-  }
-
-  function isPatchable (vnode) {
-    while (vnode.componentInstance) {
-      vnode = vnode.componentInstance._vnode;
-    }
-    return isDef(vnode.tag)
-  }
-
-  function invokeCreateHooks (vnode, insertedVnodeQueue) {
-    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-      cbs.create[i$1](emptyNode, vnode);
-    }
-    i = vnode.data.hook; // Reuse variable
-    if (isDef(i)) {
-      if (isDef(i.create)) { i.create(emptyNode, vnode); }
-      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
-    }
-  }
-
-  // set scope id attribute for scoped CSS.
-  // this is implemented as a special case to avoid the overhead
-  // of going through the normal attribute patching process.
-  function setScope (vnode) {
-    var i;
-    if (isDef(i = vnode.fnScopeId)) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    } else {
-      var ancestor = vnode;
-      while (ancestor) {
-        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
-          nodeOps.setStyleScope(vnode.elm, i);
-        }
-        ancestor = ancestor.parent;
-      }
-    }
-    // for slot content they should also get the scopeId from the host instance.
-    if (isDef(i = activeInstance) &&
-      i !== vnode.context &&
-      i !== vnode.fnContext &&
-      isDef(i = i.$options._scopeId)
-    ) {
-      nodeOps.setStyleScope(vnode.elm, i);
-    }
-  }
-
-  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
-    }
-  }
-
-  function invokeDestroyHook (vnode) {
-    var i, j;
-    var data = vnode.data;
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
-      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
-    }
-    if (isDef(i = vnode.children)) {
-      for (j = 0; j < vnode.children.length; ++j) {
-        invokeDestroyHook(vnode.children[j]);
-      }
-    }
-  }
-
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
-    for (; startIdx <= endIdx; ++startIdx) {
-      var ch = vnodes[startIdx];
-      if (isDef(ch)) {
-        if (isDef(ch.tag)) {
-          removeAndInvokeRemoveHook(ch);
-          invokeDestroyHook(ch);
-        } else { // Text node
-          removeNode(ch.elm);
-        }
-      }
-    }
-  }
-
-  function removeAndInvokeRemoveHook (vnode, rm) {
-    if (isDef(rm) || isDef(vnode.data)) {
-      var i;
-      var listeners = cbs.remove.length + 1;
-      if (isDef(rm)) {
-        // we have a recursively passed down rm callback
-        // increase the listeners count
-        rm.listeners += listeners;
-      } else {
-        // directly removing
-        rm = createRmCb(vnode.elm, listeners);
-      }
-      // recursively invoke hooks on child component root node
-      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
-        removeAndInvokeRemoveHook(i, rm);
-      }
-      for (i = 0; i < cbs.remove.length; ++i) {
-        cbs.remove[i](vnode, rm);
-      }
-      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
-        i(vnode, rm);
-      } else {
-        rm();
-      }
-    } else {
-      removeNode(vnode.elm);
-    }
-  }
-
-  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
-    var oldStartIdx = 0;
-    var newStartIdx = 0;
-    var oldEndIdx = oldCh.length - 1;
-    var oldStartVnode = oldCh[0];
-    var oldEndVnode = oldCh[oldEndIdx];
-    var newEndIdx = newCh.length - 1;
-    var newStartVnode = newCh[0];
-    var newEndVnode = newCh[newEndIdx];
-    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
-
-    // removeOnly is a special flag used only by <transition-group>
-    // to ensure removed elements stay in correct relative positions
-    // during leaving transitions
-    var canMove = !removeOnly;
-
-    if (process.env.NODE_ENV !== 'production') {
-      checkDuplicateKeys(newCh);
-    }
-
-    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
-      if (isUndef(oldStartVnode)) {
-        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
-      } else if (isUndef(oldEndVnode)) {
-        oldEndVnode = oldCh[--oldEndIdx];
-      } else if (sameVnode(oldStartVnode, newStartVnode)) {
-        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        oldStartVnode = oldCh[++oldStartIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else if (sameVnode(oldEndVnode, newEndVnode)) {
-        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
-        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
-        oldStartVnode = oldCh[++oldStartIdx];
-        newEndVnode = newCh[--newEndIdx];
-      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
-        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
-        oldEndVnode = oldCh[--oldEndIdx];
-        newStartVnode = newCh[++newStartIdx];
-      } else {
-        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
-        idxInOld = isDef(newStartVnode.key)
-          ? oldKeyToIdx[newStartVnode.key]
-          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
-        if (isUndef(idxInOld)) { // New element
-          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-        } else {
-          vnodeToMove = oldCh[idxInOld];
-          if (sameVnode(vnodeToMove, newStartVnode)) {
-            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
-            oldCh[idxInOld] = undefined;
-            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
-          } else {
-            // same key but different element. treat as new element
-            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
-          }
-        }
-        newStartVnode = newCh[++newStartIdx];
-      }
-    }
-    if (oldStartIdx > oldEndIdx) {
-      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
-      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
-    } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
-    }
-  }
-
-  function checkDuplicateKeys (children) {
-    var seenKeys = {};
-    for (var i = 0; i < children.length; i++) {
-      var vnode = children[i];
-      var key = vnode.key;
-      if (isDef(key)) {
-        if (seenKeys[key]) {
-          warn(
-            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
-            vnode.context
-          );
-        } else {
-          seenKeys[key] = true;
-        }
-      }
-    }
-  }
-
-  function findIdxInOld (node, oldCh, start, end) {
-    for (var i = start; i < end; i++) {
-      var c = oldCh[i];
-      if (isDef(c) && sameVnode(node, c)) { return i }
-    }
-  }
-
-  function patchVnode (
-    oldVnode,
-    vnode,
-    insertedVnodeQueue,
-    ownerArray,
-    index,
-    removeOnly
-  ) {
-    if (oldVnode === vnode) {
-      return
-    }
-
-    if (isDef(vnode.elm) && isDef(ownerArray)) {
-      // clone reused vnode
-      vnode = ownerArray[index] = cloneVNode(vnode);
-    }
-
-    var elm = vnode.elm = oldVnode.elm;
-
-    if (isTrue(oldVnode.isAsyncPlaceholder)) {
-      if (isDef(vnode.asyncFactory.resolved)) {
-        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
-      } else {
-        vnode.isAsyncPlaceholder = true;
-      }
-      return
-    }
-
-    // reuse element for static trees.
-    // note we only do this if the vnode is cloned -
-    // if the new node is not cloned it means the render functions have been
-    // reset by the hot-reload-api and we need to do a proper re-render.
-    if (isTrue(vnode.isStatic) &&
-      isTrue(oldVnode.isStatic) &&
-      vnode.key === oldVnode.key &&
-      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
-    ) {
-      vnode.componentInstance = oldVnode.componentInstance;
-      return
-    }
-
-    var i;
-    var data = vnode.data;
-    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
-      i(oldVnode, vnode);
-    }
-
-    var oldCh = oldVnode.children;
-    var ch = vnode.children;
-    if (isDef(data) && isPatchable(vnode)) {
-      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
-      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
-    }
-    if (isUndef(vnode.text)) {
-      if (isDef(oldCh) && isDef(ch)) {
-        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
-      } else if (isDef(ch)) {
-        if (process.env.NODE_ENV !== 'production') {
-          checkDuplicateKeys(ch);
-        }
-        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
-        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
-      } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
-      } else if (isDef(oldVnode.text)) {
-        nodeOps.setTextContent(elm, '');
-      }
-    } else if (oldVnode.text !== vnode.text) {
-      nodeOps.setTextContent(elm, vnode.text);
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
-    }
-  }
-
-  function invokeInsertHook (vnode, queue, initial) {
-    // delay insert hooks for component root nodes, invoke them after the
-    // element is really inserted
-    if (isTrue(initial) && isDef(vnode.parent)) {
-      vnode.parent.data.pendingInsert = queue;
-    } else {
-      for (var i = 0; i < queue.length; ++i) {
-        queue[i].data.hook.insert(queue[i]);
-      }
-    }
-  }
-
-  var hydrationBailed = false;
-  // list of modules that can skip create hook during hydration because they
-  // are already rendered on the client or has no need for initialization
-  // Note: style is excluded because it relies on initial clone for future
-  // deep updates (#7063).
-  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
-
-  // Note: this is a browser-only function so we can assume elms are DOM nodes.
-  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
-    var i;
-    var tag = vnode.tag;
-    var data = vnode.data;
-    var children = vnode.children;
-    inVPre = inVPre || (data && data.pre);
-    vnode.elm = elm;
-
-    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
-      vnode.isAsyncPlaceholder = true;
-      return true
-    }
-    // assert node match
-    if (process.env.NODE_ENV !== 'production') {
-      if (!assertNodeMatch(elm, vnode, inVPre)) {
-        return false
-      }
-    }
-    if (isDef(data)) {
-      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
-      if (isDef(i = vnode.componentInstance)) {
-        // child component. it should have hydrated its own tree.
-        initComponent(vnode, insertedVnodeQueue);
-        return true
-      }
-    }
-    if (isDef(tag)) {
-      if (isDef(children)) {
-        // empty element, allow client to pick up and populate children
-        if (!elm.hasChildNodes()) {
-          createChildren(vnode, children, insertedVnodeQueue);
-        } else {
-          // v-html and domProps: innerHTML
-          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
-            if (i !== elm.innerHTML) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('server innerHTML: ', i);
-                console.warn('client innerHTML: ', elm.innerHTML);
-              }
-              return false
-            }
-          } else {
-            // iterate and compare children lists
-            var childrenMatch = true;
-            var childNode = elm.firstChild;
-            for (var i$1 = 0; i$1 < children.length; i$1++) {
-              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
-                childrenMatch = false;
-                break
-              }
-              childNode = childNode.nextSibling;
-            }
-            // if childNode is not null, it means the actual childNodes list is
-            // longer than the virtual children list.
-            if (!childrenMatch || childNode) {
-              /* istanbul ignore if */
-              if (process.env.NODE_ENV !== 'production' &&
-                typeof console !== 'undefined' &&
-                !hydrationBailed
-              ) {
-                hydrationBailed = true;
-                console.warn('Parent: ', elm);
-                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
-              }
-              return false
-            }
-          }
-        }
-      }
-      if (isDef(data)) {
-        var fullInvoke = false;
-        for (var key in data) {
-          if (!isRenderedModule(key)) {
-            fullInvoke = true;
-            invokeCreateHooks(vnode, insertedVnodeQueue);
-            break
-          }
-        }
-        if (!fullInvoke && data['class']) {
-          // ensure collecting deps for deep class bindings for future updates
-          traverse(data['class']);
-        }
-      }
-    } else if (elm.data !== vnode.text) {
-      elm.data = vnode.text;
-    }
-    return true
-  }
-
-  function assertNodeMatch (node, vnode, inVPre) {
-    if (isDef(vnode.tag)) {
-      return vnode.tag.indexOf('vue-component') === 0 || (
-        !isUnknownElement$$1(vnode, inVPre) &&
-        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
-      )
-    } else {
-      return node.nodeType === (vnode.isComment ? 8 : 3)
-    }
-  }
-
-  return function patch (oldVnode, vnode, hydrating, removeOnly) {
-    if (isUndef(vnode)) {
-      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
-      return
-    }
-
-    var isInitialPatch = false;
-    var insertedVnodeQueue = [];
-
-    if (isUndef(oldVnode)) {
-      // empty mount (likely as component), create new root element
-      isInitialPatch = true;
-      createElm(vnode, insertedVnodeQueue);
-    } else {
-      var isRealElement = isDef(oldVnode.nodeType);
-      if (!isRealElement && sameVnode(oldVnode, vnode)) {
-        // patch existing root node
-        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
-      } else {
-        if (isRealElement) {
-          // mounting to a real element
-          // check if this is server-rendered content and if we can perform
-          // a successful hydration.
-          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
-            oldVnode.removeAttribute(SSR_ATTR);
-            hydrating = true;
-          }
-          if (isTrue(hydrating)) {
-            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
-              invokeInsertHook(vnode, insertedVnodeQueue, true);
-              return oldVnode
-            } else if (process.env.NODE_ENV !== 'production') {
-              warn(
-                'The client-side rendered virtual DOM tree is not matching ' +
-                'server-rendered content. This is likely caused by incorrect ' +
-                'HTML markup, for example nesting block-level elements inside ' +
-                '<p>, or missing <tbody>. Bailing hydration and performing ' +
-                'full client-side render.'
-              );
-            }
-          }
-          // either not server-rendered, or hydration failed.
-          // create an empty node and replace it
-          oldVnode = emptyNodeAt(oldVnode);
-        }
-
-        // replacing existing element
-        var oldElm = oldVnode.elm;
-        var parentElm = nodeOps.parentNode(oldElm);
-
-        // create new node
-        createElm(
-          vnode,
-          insertedVnodeQueue,
-          // extremely rare edge case: do not insert if old element is in a
-          // leaving transition. Only happens when combining transition +
-          // keep-alive + HOCs. (#4590)
-          oldElm._leaveCb ? null : parentElm,
-          nodeOps.nextSibling(oldElm)
-        );
-
-        // update parent placeholder node element, recursively
-        if (isDef(vnode.parent)) {
-          var ancestor = vnode.parent;
-          var patchable = isPatchable(vnode);
-          while (ancestor) {
-            for (var i = 0; i < cbs.destroy.length; ++i) {
-              cbs.destroy[i](ancestor);
-            }
-            ancestor.elm = vnode.elm;
-            if (patchable) {
-              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
-                cbs.create[i$1](emptyNode, ancestor);
-              }
-              // #6513
-              // invoke insert hooks that may have been merged by create hooks.
-              // e.g. for directives that uses the "inserted" hook.
-              var insert = ancestor.data.hook.insert;
-              if (insert.merged) {
-                // start at index 1 to avoid re-invoking component mounted hook
-                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
-                  insert.fns[i$2]();
-                }
-              }
-            } else {
-              registerRef(ancestor);
-            }
-            ancestor = ancestor.parent;
-          }
-        }
-
-        // destroy old node
-        if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0);
-        } else if (isDef(oldVnode.tag)) {
-          invokeDestroyHook(oldVnode);
-        }
-      }
-    }
-
-    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
-    return vnode.elm
-  }
-}
-
-/*  */
-
-var directives = {
-  create: updateDirectives,
-  update: updateDirectives,
-  destroy: function unbindDirectives (vnode) {
-    updateDirectives(vnode, emptyNode);
-  }
-};
-
-function updateDirectives (oldVnode, vnode) {
-  if (oldVnode.data.directives || vnode.data.directives) {
-    _update(oldVnode, vnode);
-  }
-}
-
-function _update (oldVnode, vnode) {
-  var isCreate = oldVnode === emptyNode;
-  var isDestroy = vnode === emptyNode;
-  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
-  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
-
-  var dirsWithInsert = [];
-  var dirsWithPostpatch = [];
-
-  var key, oldDir, dir;
-  for (key in newDirs) {
-    oldDir = oldDirs[key];
-    dir = newDirs[key];
-    if (!oldDir) {
-      // new directive, bind
-      callHook$1(dir, 'bind', vnode, oldVnode);
-      if (dir.def && dir.def.inserted) {
-        dirsWithInsert.push(dir);
-      }
-    } else {
-      // existing directive, update
-      dir.oldValue = oldDir.value;
-      callHook$1(dir, 'update', vnode, oldVnode);
-      if (dir.def && dir.def.componentUpdated) {
-        dirsWithPostpatch.push(dir);
-      }
-    }
-  }
-
-  if (dirsWithInsert.length) {
-    var callInsert = function () {
-      for (var i = 0; i < dirsWithInsert.length; i++) {
-        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
-      }
-    };
-    if (isCreate) {
-      mergeVNodeHook(vnode, 'insert', callInsert);
-    } else {
-      callInsert();
-    }
-  }
-
-  if (dirsWithPostpatch.length) {
-    mergeVNodeHook(vnode, 'postpatch', function () {
-      for (var i = 0; i < dirsWithPostpatch.length; i++) {
-        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
-      }
-    });
-  }
-
-  if (!isCreate) {
-    for (key in oldDirs) {
-      if (!newDirs[key]) {
-        // no longer present, unbind
-        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
-      }
-    }
-  }
-}
-
-var emptyModifiers = Object.create(null);
-
-function normalizeDirectives$1 (
-  dirs,
-  vm
-) {
-  var res = Object.create(null);
-  if (!dirs) {
-    // $flow-disable-line
-    return res
-  }
-  var i, dir;
-  for (i = 0; i < dirs.length; i++) {
-    dir = dirs[i];
-    if (!dir.modifiers) {
-      // $flow-disable-line
-      dir.modifiers = emptyModifiers;
-    }
-    res[getRawDirName(dir)] = dir;
-    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
-  }
-  // $flow-disable-line
-  return res
-}
-
-function getRawDirName (dir) {
-  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
-}
-
-function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
-  var fn = dir.def && dir.def[hook];
-  if (fn) {
-    try {
-      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
-    } catch (e) {
-      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
-    }
-  }
-}
-
-var baseModules = [
-  ref,
-  directives
-];
-
-/*  */
-
-function updateAttrs (oldVnode, vnode) {
-  var opts = vnode.componentOptions;
-  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
-    return
-  }
-  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
-    return
-  }
-  var key, cur, old;
-  var elm = vnode.elm;
-  var oldAttrs = oldVnode.data.attrs || {};
-  var attrs = vnode.data.attrs || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(attrs.__ob__)) {
-    attrs = vnode.data.attrs = extend({}, attrs);
-  }
-
-  for (key in attrs) {
-    cur = attrs[key];
-    old = oldAttrs[key];
-    if (old !== cur) {
-      setAttr(elm, key, cur);
-    }
-  }
-  // #4391: in IE9, setting type can reset value for input[type=radio]
-  // #6666: IE/Edge forces progress value down to 1 before setting a max
-  /* istanbul ignore if */
-  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
-    setAttr(elm, 'value', attrs.value);
-  }
-  for (key in oldAttrs) {
-    if (isUndef(attrs[key])) {
-      if (isXlink(key)) {
-        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
-      } else if (!isEnumeratedAttr(key)) {
-        elm.removeAttribute(key);
-      }
-    }
-  }
-}
-
-function setAttr (el, key, value) {
-  if (el.tagName.indexOf('-') > -1) {
-    baseSetAttr(el, key, value);
-  } else if (isBooleanAttr(key)) {
-    // set attribute for blank value
-    // e.g. <option disabled>Select one</option>
-    if (isFalsyAttrValue(value)) {
-      el.removeAttribute(key);
-    } else {
-      // technically allowfullscreen is a boolean attribute for <iframe>,
-      // but Flash expects a value of "true" when used on <embed> tag
-      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
-        ? 'true'
-        : key;
-      el.setAttribute(key, value);
-    }
-  } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
-  } else if (isXlink(key)) {
-    if (isFalsyAttrValue(value)) {
-      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
-    } else {
-      el.setAttributeNS(xlinkNS, key, value);
-    }
-  } else {
-    baseSetAttr(el, key, value);
-  }
-}
-
-function baseSetAttr (el, key, value) {
-  if (isFalsyAttrValue(value)) {
-    el.removeAttribute(key);
-  } else {
-    // #7138: IE10 & 11 fires input event when setting placeholder on
-    // <textarea>... block the first input event and remove the blocker
-    // immediately.
-    /* istanbul ignore if */
-    if (
-      isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
-    ) {
-      var blocker = function (e) {
-        e.stopImmediatePropagation();
-        el.removeEventListener('input', blocker);
-      };
-      el.addEventListener('input', blocker);
-      // $flow-disable-line
-      el.__ieph = true; /* IE placeholder patched */
-    }
-    el.setAttribute(key, value);
-  }
-}
-
-var attrs = {
-  create: updateAttrs,
-  update: updateAttrs
-};
-
-/*  */
-
-function updateClass (oldVnode, vnode) {
-  var el = vnode.elm;
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-  if (
-    isUndef(data.staticClass) &&
-    isUndef(data.class) && (
-      isUndef(oldData) || (
-        isUndef(oldData.staticClass) &&
-        isUndef(oldData.class)
-      )
-    )
-  ) {
-    return
-  }
-
-  var cls = genClassForVnode(vnode);
-
-  // handle transition classes
-  var transitionClass = el._transitionClasses;
-  if (isDef(transitionClass)) {
-    cls = concat(cls, stringifyClass(transitionClass));
-  }
-
-  // set the class
-  if (cls !== el._prevClass) {
-    el.setAttribute('class', cls);
-    el._prevClass = cls;
-  }
-}
-
-var klass = {
-  create: updateClass,
-  update: updateClass
-};
-
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-// in some cases, the event used has to be determined at runtime
-// so we used some reserved tokens during compile.
-var RANGE_TOKEN = '__r';
-var CHECKBOX_RADIO_TOKEN = '__c';
-
-/*  */
-
-// normalize v-model event tokens that can only be determined at runtime.
-// it's important to place the event as the first in the array because
-// the whole point is ensuring the v-model callback gets called before
-// user-attached handlers.
-function normalizeEvents (on) {
-  /* istanbul ignore if */
-  if (isDef(on[RANGE_TOKEN])) {
-    // IE input[type=range] only supports `change` event
-    var event = isIE ? 'change' : 'input';
-    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
-    delete on[RANGE_TOKEN];
-  }
-  // This was originally intended to fix #4521 but no longer necessary
-  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
-  /* istanbul ignore if */
-  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
-    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
-    delete on[CHECKBOX_RADIO_TOKEN];
-  }
-}
-
-var target$1;
-
-function createOnceHandler$1 (event, handler, capture) {
-  var _target = target$1; // save current target element in closure
-  return function onceHandler () {
-    var res = handler.apply(null, arguments);
-    if (res !== null) {
-      remove$2(event, onceHandler, capture, _target);
-    }
-  }
-}
-
-function add$1 (
-  event,
-  handler,
-  capture,
-  passive
-) {
-  handler = withMacroTask(handler);
-  target$1.addEventListener(
-    event,
-    handler,
-    supportsPassive
-      ? { capture: capture, passive: passive }
-      : capture
-  );
-}
-
-function remove$2 (
-  event,
-  handler,
-  capture,
-  _target
-) {
-  (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
-    capture
-  );
-}
-
-function updateDOMListeners (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
-    return
-  }
-  var on = vnode.data.on || {};
-  var oldOn = oldVnode.data.on || {};
-  target$1 = vnode.elm;
-  normalizeEvents(on);
-  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
-  target$1 = undefined;
-}
-
-var events = {
-  create: updateDOMListeners,
-  update: updateDOMListeners
-};
-
-/*  */
-
-function updateDOMProps (oldVnode, vnode) {
-  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
-    return
-  }
-  var key, cur;
-  var elm = vnode.elm;
-  var oldProps = oldVnode.data.domProps || {};
-  var props = vnode.data.domProps || {};
-  // clone observed objects, as the user probably wants to mutate it
-  if (isDef(props.__ob__)) {
-    props = vnode.data.domProps = extend({}, props);
-  }
-
-  for (key in oldProps) {
-    if (isUndef(props[key])) {
-      elm[key] = '';
-    }
-  }
-  for (key in props) {
-    cur = props[key];
-    // ignore children if the node has textContent or innerHTML,
-    // as these will throw away existing DOM nodes and cause removal errors
-    // on subsequent patches (#3360)
-    if (key === 'textContent' || key === 'innerHTML') {
-      if (vnode.children) { vnode.children.length = 0; }
-      if (cur === oldProps[key]) { continue }
-      // #6601 work around Chrome version <= 55 bug where single textNode
-      // replaced by innerHTML/textContent retains its parentNode property
-      if (elm.childNodes.length === 1) {
-        elm.removeChild(elm.childNodes[0]);
-      }
-    }
-
-    if (key === 'value') {
-      // store value as _value as well since
-      // non-string values will be stringified
-      elm._value = cur;
-      // avoid resetting cursor position when value is the same
-      var strCur = isUndef(cur) ? '' : String(cur);
-      if (shouldUpdateValue(elm, strCur)) {
-        elm.value = strCur;
-      }
-    } else {
-      elm[key] = cur;
-    }
-  }
-}
-
-// check platforms/web/util/attrs.js acceptValue
-
-
-function shouldUpdateValue (elm, checkVal) {
-  return (!elm.composing && (
-    elm.tagName === 'OPTION' ||
-    isNotInFocusAndDirty(elm, checkVal) ||
-    isDirtyWithModifiers(elm, checkVal)
-  ))
-}
-
-function isNotInFocusAndDirty (elm, checkVal) {
-  // return true when textbox (.number and .trim) loses focus and its value is
-  // not equal to the updated value
-  var notInFocus = true;
-  // #6157
-  // work around IE bug when accessing document.activeElement in an iframe
-  try { notInFocus = document.activeElement !== elm; } catch (e) {}
-  return notInFocus && elm.value !== checkVal
-}
-
-function isDirtyWithModifiers (elm, newVal) {
-  var value = elm.value;
-  var modifiers = elm._vModifiers; // injected by v-model runtime
-  if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
-    if (modifiers.number) {
-      return toNumber(value) !== toNumber(newVal)
-    }
-    if (modifiers.trim) {
-      return value.trim() !== newVal.trim()
-    }
-  }
-  return value !== newVal
-}
-
-var domProps = {
-  create: updateDOMProps,
-  update: updateDOMProps
-};
-
-/*  */
-
-var parseStyleText = cached(function (cssText) {
-  var res = {};
-  var listDelimiter = /;(?![^(]*\))/g;
-  var propertyDelimiter = /:(.+)/;
-  cssText.split(listDelimiter).forEach(function (item) {
-    if (item) {
-      var tmp = item.split(propertyDelimiter);
-      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
-    }
-  });
-  return res
-});
-
-// merge static and dynamic style data on the same vnode
-function normalizeStyleData (data) {
-  var style = normalizeStyleBinding(data.style);
-  // static style is pre-processed into an object during compilation
-  // and is always a fresh object, so it's safe to merge into it
-  return data.staticStyle
-    ? extend(data.staticStyle, style)
-    : style
-}
-
-// normalize possible array / string values into Object
-function normalizeStyleBinding (bindingStyle) {
-  if (Array.isArray(bindingStyle)) {
-    return toObject(bindingStyle)
-  }
-  if (typeof bindingStyle === 'string') {
-    return parseStyleText(bindingStyle)
-  }
-  return bindingStyle
-}
-
-/**
- * parent component style should be after child's
- * so that parent component's style could override it
- */
-function getStyle (vnode, checkChild) {
-  var res = {};
-  var styleData;
-
-  if (checkChild) {
-    var childNode = vnode;
-    while (childNode.componentInstance) {
-      childNode = childNode.componentInstance._vnode;
-      if (
-        childNode && childNode.data &&
-        (styleData = normalizeStyleData(childNode.data))
-      ) {
-        extend(res, styleData);
-      }
-    }
-  }
-
-  if ((styleData = normalizeStyleData(vnode.data))) {
-    extend(res, styleData);
-  }
-
-  var parentNode = vnode;
-  while ((parentNode = parentNode.parent)) {
-    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
-      extend(res, styleData);
-    }
-  }
-  return res
-}
-
-/*  */
-
-var cssVarRE = /^--/;
-var importantRE = /\s*!important$/;
-var setProp = function (el, name, val) {
-  /* istanbul ignore if */
-  if (cssVarRE.test(name)) {
-    el.style.setProperty(name, val);
-  } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
-  } else {
-    var normalizedName = normalize(name);
-    if (Array.isArray(val)) {
-      // Support values array created by autoprefixer, e.g.
-      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
-      // Set them one by one, and the browser will only set those it can recognize
-      for (var i = 0, len = val.length; i < len; i++) {
-        el.style[normalizedName] = val[i];
-      }
-    } else {
-      el.style[normalizedName] = val;
-    }
-  }
-};
-
-var vendorNames = ['Webkit', 'Moz', 'ms'];
-
-var emptyStyle;
-var normalize = cached(function (prop) {
-  emptyStyle = emptyStyle || document.createElement('div').style;
-  prop = camelize(prop);
-  if (prop !== 'filter' && (prop in emptyStyle)) {
-    return prop
-  }
-  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
-  for (var i = 0; i < vendorNames.length; i++) {
-    var name = vendorNames[i] + capName;
-    if (name in emptyStyle) {
-      return name
-    }
-  }
-});
-
-function updateStyle (oldVnode, vnode) {
-  var data = vnode.data;
-  var oldData = oldVnode.data;
-
-  if (isUndef(data.staticStyle) && isUndef(data.style) &&
-    isUndef(oldData.staticStyle) && isUndef(oldData.style)
-  ) {
-    return
-  }
-
-  var cur, name;
-  var el = vnode.elm;
-  var oldStaticStyle = oldData.staticStyle;
-  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
-
-  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
-  var oldStyle = oldStaticStyle || oldStyleBinding;
-
-  var style = normalizeStyleBinding(vnode.data.style) || {};
-
-  // store normalized style under a different key for next diff
-  // make sure to clone it if it's reactive, since the user likely wants
-  // to mutate it.
-  vnode.data.normalizedStyle = isDef(style.__ob__)
-    ? extend({}, style)
-    : style;
-
-  var newStyle = getStyle(vnode, true);
-
-  for (name in oldStyle) {
-    if (isUndef(newStyle[name])) {
-      setProp(el, name, '');
-    }
-  }
-  for (name in newStyle) {
-    cur = newStyle[name];
-    if (cur !== oldStyle[name]) {
-      // ie9 setting to null has no effect, must use empty string
-      setProp(el, name, cur == null ? '' : cur);
-    }
-  }
-}
-
-var style = {
-  create: updateStyle,
-  update: updateStyle
-};
-
-/*  */
-
-var whitespaceRE = /\s+/;
-
-/**
- * Add class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function addClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
-    } else {
-      el.classList.add(cls);
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    if (cur.indexOf(' ' + cls + ' ') < 0) {
-      el.setAttribute('class', (cur + cls).trim());
-    }
-  }
-}
-
-/**
- * Remove class with compatibility for SVG since classList is not supported on
- * SVG elements in IE
- */
-function removeClass (el, cls) {
-  /* istanbul ignore if */
-  if (!cls || !(cls = cls.trim())) {
-    return
-  }
-
-  /* istanbul ignore else */
-  if (el.classList) {
-    if (cls.indexOf(' ') > -1) {
-      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
-    } else {
-      el.classList.remove(cls);
-    }
-    if (!el.classList.length) {
-      el.removeAttribute('class');
-    }
-  } else {
-    var cur = " " + (el.getAttribute('class') || '') + " ";
-    var tar = ' ' + cls + ' ';
-    while (cur.indexOf(tar) >= 0) {
-      cur = cur.replace(tar, ' ');
-    }
-    cur = cur.trim();
-    if (cur) {
-      el.setAttribute('class', cur);
-    } else {
-      el.removeAttribute('class');
-    }
-  }
-}
-
-/*  */
-
-function resolveTransition (def$$1) {
-  if (!def$$1) {
-    return
-  }
-  /* istanbul ignore else */
-  if (typeof def$$1 === 'object') {
-    var res = {};
-    if (def$$1.css !== false) {
-      extend(res, autoCssTransition(def$$1.name || 'v'));
-    }
-    extend(res, def$$1);
-    return res
-  } else if (typeof def$$1 === 'string') {
-    return autoCssTransition(def$$1)
-  }
-}
-
-var autoCssTransition = cached(function (name) {
-  return {
-    enterClass: (name + "-enter"),
-    enterToClass: (name + "-enter-to"),
-    enterActiveClass: (name + "-enter-active"),
-    leaveClass: (name + "-leave"),
-    leaveToClass: (name + "-leave-to"),
-    leaveActiveClass: (name + "-leave-active")
-  }
-});
-
-var hasTransition = inBrowser && !isIE9;
-var TRANSITION = 'transition';
-var ANIMATION = 'animation';
-
-// Transition property/event sniffing
-var transitionProp = 'transition';
-var transitionEndEvent = 'transitionend';
-var animationProp = 'animation';
-var animationEndEvent = 'animationend';
-if (hasTransition) {
-  /* istanbul ignore if */
-  if (window.ontransitionend === undefined &&
-    window.onwebkittransitionend !== undefined
-  ) {
-    transitionProp = 'WebkitTransition';
-    transitionEndEvent = 'webkitTransitionEnd';
-  }
-  if (window.onanimationend === undefined &&
-    window.onwebkitanimationend !== undefined
-  ) {
-    animationProp = 'WebkitAnimation';
-    animationEndEvent = 'webkitAnimationEnd';
-  }
-}
-
-// binding to window is necessary to make hot reload work in IE in strict mode
-var raf = inBrowser
-  ? window.requestAnimationFrame
-    ? window.requestAnimationFrame.bind(window)
-    : setTimeout
-  : /* istanbul ignore next */ function (fn) { return fn(); };
-
-function nextFrame (fn) {
-  raf(function () {
-    raf(fn);
-  });
-}
-
-function addTransitionClass (el, cls) {
-  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
-  if (transitionClasses.indexOf(cls) < 0) {
-    transitionClasses.push(cls);
-    addClass(el, cls);
-  }
-}
-
-function removeTransitionClass (el, cls) {
-  if (el._transitionClasses) {
-    remove(el._transitionClasses, cls);
-  }
-  removeClass(el, cls);
-}
-
-function whenTransitionEnds (
-  el,
-  expectedType,
-  cb
-) {
-  var ref = getTransitionInfo(el, expectedType);
-  var type = ref.type;
-  var timeout = ref.timeout;
-  var propCount = ref.propCount;
-  if (!type) { return cb() }
-  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
-  var ended = 0;
-  var end = function () {
-    el.removeEventListener(event, onEnd);
-    cb();
-  };
-  var onEnd = function (e) {
-    if (e.target === el) {
-      if (++ended >= propCount) {
-        end();
-      }
-    }
-  };
-  setTimeout(function () {
-    if (ended < propCount) {
-      end();
-    }
-  }, timeout + 1);
-  el.addEventListener(event, onEnd);
-}
-
-var transformRE = /\b(transform|all)(,|$)/;
-
-function getTransitionInfo (el, expectedType) {
-  var styles = window.getComputedStyle(el);
-  // JSDOM may return undefined for transition properties
-  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
-  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
-  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
-  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
-  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
-  var animationTimeout = getTimeout(animationDelays, animationDurations);
-
-  var type;
-  var timeout = 0;
-  var propCount = 0;
-  /* istanbul ignore if */
-  if (expectedType === TRANSITION) {
-    if (transitionTimeout > 0) {
-      type = TRANSITION;
-      timeout = transitionTimeout;
-      propCount = transitionDurations.length;
-    }
-  } else if (expectedType === ANIMATION) {
-    if (animationTimeout > 0) {
-      type = ANIMATION;
-      timeout = animationTimeout;
-      propCount = animationDurations.length;
-    }
-  } else {
-    timeout = Math.max(transitionTimeout, animationTimeout);
-    type = timeout > 0
-      ? transitionTimeout > animationTimeout
-        ? TRANSITION
-        : ANIMATION
-      : null;
-    propCount = type
-      ? type === TRANSITION
-        ? transitionDurations.length
-        : animationDurations.length
-      : 0;
-  }
-  var hasTransform =
-    type === TRANSITION &&
-    transformRE.test(styles[transitionProp + 'Property']);
-  return {
-    type: type,
-    timeout: timeout,
-    propCount: propCount,
-    hasTransform: hasTransform
-  }
-}
-
-function getTimeout (delays, durations) {
-  /* istanbul ignore next */
-  while (delays.length < durations.length) {
-    delays = delays.concat(delays);
-  }
-
-  return Math.max.apply(null, durations.map(function (d, i) {
-    return toMs(d) + toMs(delays[i])
-  }))
-}
-
-// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
-// in a locale-dependent way, using a comma instead of a dot.
-// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
-// as a floor function) causing unexpected behaviors
-function toMs (s) {
-  return Number(s.slice(0, -1).replace(',', '.')) * 1000
-}
-
-/*  */
-
-function enter (vnode, toggleDisplay) {
-  var el = vnode.elm;
-
-  // call leave callback now
-  if (isDef(el._leaveCb)) {
-    el._leaveCb.cancelled = true;
-    el._leaveCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data)) {
-    return
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._enterCb) || el.nodeType !== 1) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var enterClass = data.enterClass;
-  var enterToClass = data.enterToClass;
-  var enterActiveClass = data.enterActiveClass;
-  var appearClass = data.appearClass;
-  var appearToClass = data.appearToClass;
-  var appearActiveClass = data.appearActiveClass;
-  var beforeEnter = data.beforeEnter;
-  var enter = data.enter;
-  var afterEnter = data.afterEnter;
-  var enterCancelled = data.enterCancelled;
-  var beforeAppear = data.beforeAppear;
-  var appear = data.appear;
-  var afterAppear = data.afterAppear;
-  var appearCancelled = data.appearCancelled;
-  var duration = data.duration;
-
-  // activeInstance will always be the <transition> component managing this
-  // transition. One edge case to check is when the <transition> is placed
-  // as the root node of a child component. In that case we need to check
-  // <transition>'s parent for appear check.
-  var context = activeInstance;
-  var transitionNode = activeInstance.$vnode;
-  while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
-    context = transitionNode.context;
-  }
-
-  var isAppear = !context._isMounted || !vnode.isRootInsert;
-
-  if (isAppear && !appear && appear !== '') {
-    return
-  }
-
-  var startClass = isAppear && appearClass
-    ? appearClass
-    : enterClass;
-  var activeClass = isAppear && appearActiveClass
-    ? appearActiveClass
-    : enterActiveClass;
-  var toClass = isAppear && appearToClass
-    ? appearToClass
-    : enterToClass;
-
-  var beforeEnterHook = isAppear
-    ? (beforeAppear || beforeEnter)
-    : beforeEnter;
-  var enterHook = isAppear
-    ? (typeof appear === 'function' ? appear : enter)
-    : enter;
-  var afterEnterHook = isAppear
-    ? (afterAppear || afterEnter)
-    : afterEnter;
-  var enterCancelledHook = isAppear
-    ? (appearCancelled || enterCancelled)
-    : enterCancelled;
-
-  var explicitEnterDuration = toNumber(
-    isObject(duration)
-      ? duration.enter
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {
-    checkDuration(explicitEnterDuration, 'enter', vnode);
-  }
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(enterHook);
-
-  var cb = el._enterCb = once(function () {
-    if (expectsCSS) {
-      removeTransitionClass(el, toClass);
-      removeTransitionClass(el, activeClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, startClass);
-      }
-      enterCancelledHook && enterCancelledHook(el);
-    } else {
-      afterEnterHook && afterEnterHook(el);
-    }
-    el._enterCb = null;
-  });
-
-  if (!vnode.data.show) {
-    // remove pending leave element on enter by injecting an insert hook
-    mergeVNodeHook(vnode, 'insert', function () {
-      var parent = el.parentNode;
-      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
-      if (pendingNode &&
-        pendingNode.tag === vnode.tag &&
-        pendingNode.elm._leaveCb
-      ) {
-        pendingNode.elm._leaveCb();
-      }
-      enterHook && enterHook(el, cb);
-    });
-  }
-
-  // start enter transition
-  beforeEnterHook && beforeEnterHook(el);
-  if (expectsCSS) {
-    addTransitionClass(el, startClass);
-    addTransitionClass(el, activeClass);
-    nextFrame(function () {
-      removeTransitionClass(el, startClass);
-      if (!cb.cancelled) {
-        addTransitionClass(el, toClass);
-        if (!userWantsControl) {
-          if (isValidDuration(explicitEnterDuration)) {
-            setTimeout(cb, explicitEnterDuration);
-          } else {
-            whenTransitionEnds(el, type, cb);
-          }
-        }
-      }
-    });
-  }
-
-  if (vnode.data.show) {
-    toggleDisplay && toggleDisplay();
-    enterHook && enterHook(el, cb);
-  }
-
-  if (!expectsCSS && !userWantsControl) {
-    cb();
-  }
-}
-
-function leave (vnode, rm) {
-  var el = vnode.elm;
-
-  // call enter callback now
-  if (isDef(el._enterCb)) {
-    el._enterCb.cancelled = true;
-    el._enterCb();
-  }
-
-  var data = resolveTransition(vnode.data.transition);
-  if (isUndef(data) || el.nodeType !== 1) {
-    return rm()
-  }
-
-  /* istanbul ignore if */
-  if (isDef(el._leaveCb)) {
-    return
-  }
-
-  var css = data.css;
-  var type = data.type;
-  var leaveClass = data.leaveClass;
-  var leaveToClass = data.leaveToClass;
-  var leaveActiveClass = data.leaveActiveClass;
-  var beforeLeave = data.beforeLeave;
-  var leave = data.leave;
-  var afterLeave = data.afterLeave;
-  var leaveCancelled = data.leaveCancelled;
-  var delayLeave = data.delayLeave;
-  var duration = data.duration;
-
-  var expectsCSS = css !== false && !isIE9;
-  var userWantsControl = getHookArgumentsLength(leave);
-
-  var explicitLeaveDuration = toNumber(
-    isObject(duration)
-      ? duration.leave
-      : duration
-  );
-
-  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {
-    checkDuration(explicitLeaveDuration, 'leave', vnode);
-  }
-
-  var cb = el._leaveCb = once(function () {
-    if (el.parentNode && el.parentNode._pending) {
-      el.parentNode._pending[vnode.key] = null;
-    }
-    if (expectsCSS) {
-      removeTransitionClass(el, leaveToClass);
-      removeTransitionClass(el, leaveActiveClass);
-    }
-    if (cb.cancelled) {
-      if (expectsCSS) {
-        removeTransitionClass(el, leaveClass);
-      }
-      leaveCancelled && leaveCancelled(el);
-    } else {
-      rm();
-      afterLeave && afterLeave(el);
-    }
-    el._leaveCb = null;
-  });
-
-  if (delayLeave) {
-    delayLeave(performLeave);
-  } else {
-    performLeave();
-  }
-
-  function performLeave () {
-    // the delayed leave may have already been cancelled
-    if (cb.cancelled) {
-      return
-    }
-    // record leaving element
-    if (!vnode.data.show && el.parentNode) {
-      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
-    }
-    beforeLeave && beforeLeave(el);
-    if (expectsCSS) {
-      addTransitionClass(el, leaveClass);
-      addTransitionClass(el, leaveActiveClass);
-      nextFrame(function () {
-        removeTransitionClass(el, leaveClass);
-        if (!cb.cancelled) {
-          addTransitionClass(el, leaveToClass);
-          if (!userWantsControl) {
-            if (isValidDuration(explicitLeaveDuration)) {
-              setTimeout(cb, explicitLeaveDuration);
-            } else {
-              whenTransitionEnds(el, type, cb);
-            }
-          }
-        }
-      });
-    }
-    leave && leave(el, cb);
-    if (!expectsCSS && !userWantsControl) {
-      cb();
-    }
-  }
-}
-
-// only used in dev mode
-function checkDuration (val, name, vnode) {
-  if (typeof val !== 'number') {
-    warn(
-      "<transition> explicit " + name + " duration is not a valid number - " +
-      "got " + (JSON.stringify(val)) + ".",
-      vnode.context
-    );
-  } else if (isNaN(val)) {
-    warn(
-      "<transition> explicit " + name + " duration is NaN - " +
-      'the duration expression might be incorrect.',
-      vnode.context
-    );
-  }
-}
-
-function isValidDuration (val) {
-  return typeof val === 'number' && !isNaN(val)
-}
-
-/**
- * Normalize a transition hook's argument length. The hook may be:
- * - a merged hook (invoker) with the original in .fns
- * - a wrapped component method (check ._length)
- * - a plain function (.length)
- */
-function getHookArgumentsLength (fn) {
-  if (isUndef(fn)) {
-    return false
-  }
-  var invokerFns = fn.fns;
-  if (isDef(invokerFns)) {
-    // invoker
-    return getHookArgumentsLength(
-      Array.isArray(invokerFns)
-        ? invokerFns[0]
-        : invokerFns
-    )
-  } else {
-    return (fn._length || fn.length) > 1
-  }
-}
-
-function _enter (_, vnode) {
-  if (vnode.data.show !== true) {
-    enter(vnode);
-  }
-}
-
-var transition = inBrowser ? {
-  create: _enter,
-  activate: _enter,
-  remove: function remove$$1 (vnode, rm) {
-    /* istanbul ignore else */
-    if (vnode.data.show !== true) {
-      leave(vnode, rm);
-    } else {
-      rm();
-    }
-  }
-} : {};
-
-var platformModules = [
-  attrs,
-  klass,
-  events,
-  domProps,
-  style,
-  transition
-];
-
-/*  */
-
-// the directive module should be applied last, after all
-// built-in modules have been applied.
-var modules = platformModules.concat(baseModules);
-
-var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
-
-/**
- * Not type checking this file because flow doesn't like attaching
- * properties to Elements.
- */
-
-/* istanbul ignore if */
-if (isIE9) {
-  // http://www.matts411.com/post/internet-explorer-9-oninput/
-  document.addEventListener('selectionchange', function () {
-    var el = document.activeElement;
-    if (el && el.vmodel) {
-      trigger(el, 'input');
-    }
-  });
-}
-
-var directive = {
-  inserted: function inserted (el, binding, vnode, oldVnode) {
-    if (vnode.tag === 'select') {
-      // #6903
-      if (oldVnode.elm && !oldVnode.elm._vOptions) {
-        mergeVNodeHook(vnode, 'postpatch', function () {
-          directive.componentUpdated(el, binding, vnode);
-        });
-      } else {
-        setSelected(el, binding, vnode.context);
-      }
-      el._vOptions = [].map.call(el.options, getValue);
-    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
-      el._vModifiers = binding.modifiers;
-      if (!binding.modifiers.lazy) {
-        el.addEventListener('compositionstart', onCompositionStart);
-        el.addEventListener('compositionend', onCompositionEnd);
-        // Safari < 10.2 & UIWebView doesn't fire compositionend when
-        // switching focus before confirming composition choice
-        // this also fixes the issue where some browsers e.g. iOS Chrome
-        // fires "change" instead of "input" on autocomplete.
-        el.addEventListener('change', onCompositionEnd);
-        /* istanbul ignore if */
-        if (isIE9) {
-          el.vmodel = true;
-        }
-      }
-    }
-  },
-
-  componentUpdated: function componentUpdated (el, binding, vnode) {
-    if (vnode.tag === 'select') {
-      setSelected(el, binding, vnode.context);
-      // in case the options rendered by v-for have changed,
-      // it's possible that the value is out-of-sync with the rendered options.
-      // detect such cases and filter out values that no longer has a matching
-      // option in the DOM.
-      var prevOptions = el._vOptions;
-      var curOptions = el._vOptions = [].map.call(el.options, getValue);
-      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
-        // trigger change event if
-        // no matching option found for at least one value
-        var needReset = el.multiple
-          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
-          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
-        if (needReset) {
-          trigger(el, 'change');
-        }
-      }
-    }
-  }
-};
-
-function setSelected (el, binding, vm) {
-  actuallySetSelected(el, binding, vm);
-  /* istanbul ignore if */
-  if (isIE || isEdge) {
-    setTimeout(function () {
-      actuallySetSelected(el, binding, vm);
-    }, 0);
-  }
-}
-
-function actuallySetSelected (el, binding, vm) {
-  var value = binding.value;
-  var isMultiple = el.multiple;
-  if (isMultiple && !Array.isArray(value)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
-      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
-      vm
-    );
-    return
-  }
-  var selected, option;
-  for (var i = 0, l = el.options.length; i < l; i++) {
-    option = el.options[i];
-    if (isMultiple) {
-      selected = looseIndexOf(value, getValue(option)) > -1;
-      if (option.selected !== selected) {
-        option.selected = selected;
-      }
-    } else {
-      if (looseEqual(getValue(option), value)) {
-        if (el.selectedIndex !== i) {
-          el.selectedIndex = i;
-        }
-        return
-      }
-    }
-  }
-  if (!isMultiple) {
-    el.selectedIndex = -1;
-  }
-}
-
-function hasNoMatchingOption (value, options) {
-  return options.every(function (o) { return !looseEqual(o, value); })
-}
-
-function getValue (option) {
-  return '_value' in option
-    ? option._value
-    : option.value
-}
-
-function onCompositionStart (e) {
-  e.target.composing = true;
-}
-
-function onCompositionEnd (e) {
-  // prevent triggering an input event for no reason
-  if (!e.target.composing) { return }
-  e.target.composing = false;
-  trigger(e.target, 'input');
-}
-
-function trigger (el, type) {
-  var e = document.createEvent('HTMLEvents');
-  e.initEvent(type, true, true);
-  el.dispatchEvent(e);
-}
-
-/*  */
-
-// recursively search for possible transition defined inside the component root
-function locateNode (vnode) {
-  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
-    ? locateNode(vnode.componentInstance._vnode)
-    : vnode
-}
-
-var show = {
-  bind: function bind (el, ref, vnode) {
-    var value = ref.value;
-
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    var originalDisplay = el.__vOriginalDisplay =
-      el.style.display === 'none' ? '' : el.style.display;
-    if (value && transition$$1) {
-      vnode.data.show = true;
-      enter(vnode, function () {
-        el.style.display = originalDisplay;
-      });
-    } else {
-      el.style.display = value ? originalDisplay : 'none';
-    }
-  },
-
-  update: function update (el, ref, vnode) {
-    var value = ref.value;
-    var oldValue = ref.oldValue;
-
-    /* istanbul ignore if */
-    if (!value === !oldValue) { return }
-    vnode = locateNode(vnode);
-    var transition$$1 = vnode.data && vnode.data.transition;
-    if (transition$$1) {
-      vnode.data.show = true;
-      if (value) {
-        enter(vnode, function () {
-          el.style.display = el.__vOriginalDisplay;
-        });
-      } else {
-        leave(vnode, function () {
-          el.style.display = 'none';
-        });
-      }
-    } else {
-      el.style.display = value ? el.__vOriginalDisplay : 'none';
-    }
-  },
-
-  unbind: function unbind (
-    el,
-    binding,
-    vnode,
-    oldVnode,
-    isDestroy
-  ) {
-    if (!isDestroy) {
-      el.style.display = el.__vOriginalDisplay;
-    }
-  }
-};
-
-var platformDirectives = {
-  model: directive,
-  show: show
-};
-
-/*  */
-
-var transitionProps = {
-  name: String,
-  appear: Boolean,
-  css: Boolean,
-  mode: String,
-  type: String,
-  enterClass: String,
-  leaveClass: String,
-  enterToClass: String,
-  leaveToClass: String,
-  enterActiveClass: String,
-  leaveActiveClass: String,
-  appearClass: String,
-  appearActiveClass: String,
-  appearToClass: String,
-  duration: [Number, String, Object]
-};
-
-// in case the child is also an abstract component, e.g. <keep-alive>
-// we want to recursively retrieve the real component to be rendered
-function getRealChild (vnode) {
-  var compOptions = vnode && vnode.componentOptions;
-  if (compOptions && compOptions.Ctor.options.abstract) {
-    return getRealChild(getFirstComponentChild(compOptions.children))
-  } else {
-    return vnode
-  }
-}
-
-function extractTransitionData (comp) {
-  var data = {};
-  var options = comp.$options;
-  // props
-  for (var key in options.propsData) {
-    data[key] = comp[key];
-  }
-  // events.
-  // extract listeners and pass them directly to the transition methods
-  var listeners = options._parentListeners;
-  for (var key$1 in listeners) {
-    data[camelize(key$1)] = listeners[key$1];
-  }
-  return data
-}
-
-function placeholder (h, rawChild) {
-  if (/\d-keep-alive$/.test(rawChild.tag)) {
-    return h('keep-alive', {
-      props: rawChild.componentOptions.propsData
-    })
-  }
-}
-
-function hasParentTransition (vnode) {
-  while ((vnode = vnode.parent)) {
-    if (vnode.data.transition) {
-      return true
-    }
-  }
-}
-
-function isSameChild (child, oldChild) {
-  return oldChild.key === child.key && oldChild.tag === child.tag
-}
-
-var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
-
-var isVShowDirective = function (d) { return d.name === 'show'; };
-
-var Transition = {
-  name: 'transition',
-  props: transitionProps,
-  abstract: true,
-
-  render: function render (h) {
-    var this$1 = this;
-
-    var children = this.$slots.default;
-    if (!children) {
-      return
-    }
-
-    // filter out text nodes (possible whitespaces)
-    children = children.filter(isNotTextNode);
-    /* istanbul ignore if */
-    if (!children.length) {
-      return
-    }
-
-    // warn multiple elements
-    if (process.env.NODE_ENV !== 'production' && children.length > 1) {
-      warn(
-        '<transition> can only be used on a single element. Use ' +
-        '<transition-group> for lists.',
-        this.$parent
-      );
-    }
-
-    var mode = this.mode;
-
-    // warn invalid mode
-    if (process.env.NODE_ENV !== 'production' &&
-      mode && mode !== 'in-out' && mode !== 'out-in'
-    ) {
-      warn(
-        'invalid <transition> mode: ' + mode,
-        this.$parent
-      );
-    }
-
-    var rawChild = children[0];
-
-    // if this is a component root node and the component's
-    // parent container node also has transition, skip.
-    if (hasParentTransition(this.$vnode)) {
-      return rawChild
-    }
-
-    // apply transition data to child
-    // use getRealChild() to ignore abstract components e.g. keep-alive
-    var child = getRealChild(rawChild);
-    /* istanbul ignore if */
-    if (!child) {
-      return rawChild
-    }
-
-    if (this._leaving) {
-      return placeholder(h, rawChild)
-    }
-
-    // ensure a key that is unique to the vnode type and to this transition
-    // component instance. This key will be used to remove pending leaving nodes
-    // during entering.
-    var id = "__transition-" + (this._uid) + "-";
-    child.key = child.key == null
-      ? child.isComment
-        ? id + 'comment'
-        : id + child.tag
-      : isPrimitive(child.key)
-        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
-        : child.key;
-
-    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
-    var oldRawChild = this._vnode;
-    var oldChild = getRealChild(oldRawChild);
-
-    // mark v-show
-    // so that the transition module can hand over the control to the directive
-    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
-      child.data.show = true;
-    }
-
-    if (
-      oldChild &&
-      oldChild.data &&
-      !isSameChild(child, oldChild) &&
-      !isAsyncPlaceholder(oldChild) &&
-      // #6687 component root is a comment node
-      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
-    ) {
-      // replace old child transition data with fresh one
-      // important for dynamic transitions!
-      var oldData = oldChild.data.transition = extend({}, data);
-      // handle transition mode
-      if (mode === 'out-in') {
-        // return placeholder node and queue update when leave finishes
-        this._leaving = true;
-        mergeVNodeHook(oldData, 'afterLeave', function () {
-          this$1._leaving = false;
-          this$1.$forceUpdate();
-        });
-        return placeholder(h, rawChild)
-      } else if (mode === 'in-out') {
-        if (isAsyncPlaceholder(child)) {
-          return oldRawChild
-        }
-        var delayedLeave;
-        var performLeave = function () { delayedLeave(); };
-        mergeVNodeHook(data, 'afterEnter', performLeave);
-        mergeVNodeHook(data, 'enterCancelled', performLeave);
-        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
-      }
-    }
-
-    return rawChild
-  }
-};
-
-/*  */
-
-var props = extend({
-  tag: String,
-  moveClass: String
-}, transitionProps);
-
-delete props.mode;
-
-var TransitionGroup = {
-  props: props,
-
-  beforeMount: function beforeMount () {
-    var this$1 = this;
-
-    var update = this._update;
-    this._update = function (vnode, hydrating) {
-      var restoreActiveInstance = setActiveInstance(this$1);
-      // force removing pass
-      this$1.__patch__(
-        this$1._vnode,
-        this$1.kept,
-        false, // hydrating
-        true // removeOnly (!important, avoids unnecessary moves)
-      );
-      this$1._vnode = this$1.kept;
-      restoreActiveInstance();
-      update.call(this$1, vnode, hydrating);
-    };
-  },
-
-  render: function render (h) {
-    var tag = this.tag || this.$vnode.data.tag || 'span';
-    var map = Object.create(null);
-    var prevChildren = this.prevChildren = this.children;
-    var rawChildren = this.$slots.default || [];
-    var children = this.children = [];
-    var transitionData = extractTransitionData(this);
-
-    for (var i = 0; i < rawChildren.length; i++) {
-      var c = rawChildren[i];
-      if (c.tag) {
-        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
-          children.push(c);
-          map[c.key] = c
-          ;(c.data || (c.data = {})).transition = transitionData;
-        } else if (process.env.NODE_ENV !== 'production') {
-          var opts = c.componentOptions;
-          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
-          warn(("<transition-group> children must be keyed: <" + name + ">"));
-        }
-      }
-    }
-
-    if (prevChildren) {
-      var kept = [];
-      var removed = [];
-      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
-        var c$1 = prevChildren[i$1];
-        c$1.data.transition = transitionData;
-        c$1.data.pos = c$1.elm.getBoundingClientRect();
-        if (map[c$1.key]) {
-          kept.push(c$1);
-        } else {
-          removed.push(c$1);
-        }
-      }
-      this.kept = h(tag, null, kept);
-      this.removed = removed;
-    }
-
-    return h(tag, null, children)
-  },
-
-  updated: function updated () {
-    var children = this.prevChildren;
-    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
-    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
-      return
-    }
-
-    // we divide the work into three loops to avoid mixing DOM reads and writes
-    // in each iteration - which helps prevent layout thrashing.
-    children.forEach(callPendingCbs);
-    children.forEach(recordPosition);
-    children.forEach(applyTranslation);
-
-    // force reflow to put everything in position
-    // assign to this to avoid being removed in tree-shaking
-    // $flow-disable-line
-    this._reflow = document.body.offsetHeight;
-
-    children.forEach(function (c) {
-      if (c.data.moved) {
-        var el = c.elm;
-        var s = el.style;
-        addTransitionClass(el, moveClass);
-        s.transform = s.WebkitTransform = s.transitionDuration = '';
-        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
-          if (e && e.target !== el) {
-            return
-          }
-          if (!e || /transform$/.test(e.propertyName)) {
-            el.removeEventListener(transitionEndEvent, cb);
-            el._moveCb = null;
-            removeTransitionClass(el, moveClass);
-          }
-        });
-      }
-    });
-  },
-
-  methods: {
-    hasMove: function hasMove (el, moveClass) {
-      /* istanbul ignore if */
-      if (!hasTransition) {
-        return false
-      }
-      /* istanbul ignore if */
-      if (this._hasMove) {
-        return this._hasMove
-      }
-      // Detect whether an element with the move class applied has
-      // CSS transitions. Since the element may be inside an entering
-      // transition at this very moment, we make a clone of it and remove
-      // all other transition classes applied to ensure only the move class
-      // is applied.
-      var clone = el.cloneNode();
-      if (el._transitionClasses) {
-        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
-      }
-      addClass(clone, moveClass);
-      clone.style.display = 'none';
-      this.$el.appendChild(clone);
-      var info = getTransitionInfo(clone);
-      this.$el.removeChild(clone);
-      return (this._hasMove = info.hasTransform)
-    }
-  }
-};
-
-function callPendingCbs (c) {
-  /* istanbul ignore if */
-  if (c.elm._moveCb) {
-    c.elm._moveCb();
-  }
-  /* istanbul ignore if */
-  if (c.elm._enterCb) {
-    c.elm._enterCb();
-  }
-}
-
-function recordPosition (c) {
-  c.data.newPos = c.elm.getBoundingClientRect();
-}
-
-function applyTranslation (c) {
-  var oldPos = c.data.pos;
-  var newPos = c.data.newPos;
-  var dx = oldPos.left - newPos.left;
-  var dy = oldPos.top - newPos.top;
-  if (dx || dy) {
-    c.data.moved = true;
-    var s = c.elm.style;
-    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
-    s.transitionDuration = '0s';
-  }
-}
-
-var platformComponents = {
-  Transition: Transition,
-  TransitionGroup: TransitionGroup
-};
-
-/*  */
-
-// install platform specific utils
-Vue.config.mustUseProp = mustUseProp;
-Vue.config.isReservedTag = isReservedTag;
-Vue.config.isReservedAttr = isReservedAttr;
-Vue.config.getTagNamespace = getTagNamespace;
-Vue.config.isUnknownElement = isUnknownElement;
-
-// install platform runtime directives & components
-extend(Vue.options.directives, platformDirectives);
-extend(Vue.options.components, platformComponents);
-
-// install platform patch function
-Vue.prototype.__patch__ = inBrowser ? patch : noop;
-
-// public mount method
-Vue.prototype.$mount = function (
-  el,
-  hydrating
-) {
-  el = el && inBrowser ? query(el) : undefined;
-  return mountComponent(this, el, hydrating)
-};
-
-// devtools global hook
-/* istanbul ignore next */
-if (inBrowser) {
-  setTimeout(function () {
-    if (config.devtools) {
-      if (devtools) {
-        devtools.emit('init', Vue);
-      } else if (
-        process.env.NODE_ENV !== 'production' &&
-        process.env.NODE_ENV !== 'test' &&
-        isChrome
-      ) {
-        console[console.info ? 'info' : 'log'](
-          'Download the Vue Devtools extension for a better development experience:\n' +
-          'https://github.com/vuejs/vue-devtools'
-        );
-      }
-    }
-    if (process.env.NODE_ENV !== 'production' &&
-      process.env.NODE_ENV !== 'test' &&
-      config.productionTip !== false &&
-      typeof console !== 'undefined'
-    ) {
-      console[console.info ? 'info' : 'log'](
-        "You are running Vue in development mode.\n" +
-        "Make sure to turn on production mode when deploying for production.\n" +
-        "See more tips at https://vuejs.org/guide/deployment.html"
-      );
-    }
-  }, 0);
+  module.exports = require('./vue.runtime.common.dev.js')
 }

From 4f61d5b73b2e96b9570959dd2a540bc439d0f3bd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 12 Jan 2019 00:42:09 -0500
Subject: [PATCH 723/911] chore: fix flow

---
 src/compiler/codegen/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index d09bacdf7be..bdd76be0033 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -27,7 +27,7 @@ export class CodegenState {
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData')
     this.directives = extend(extend({}, baseDirectives), options.directives)
     const isReservedTag = options.isReservedTag || no
-    this.maybeComponent = (el: ASTElement) => el.component || !isReservedTag(el.tag)
+    this.maybeComponent = (el: ASTElement) => !!el.component || !isReservedTag(el.tag)
     this.onceId = 0
     this.staticRenderFns = []
     this.pre = false

From 584e89da4ab17e1ebdae0ae10be77ef9d230c7a0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 12 Jan 2019 01:23:51 -0500
Subject: [PATCH 724/911] feat: support slot-props and its shorthand

See https://github.com/vuejs/vue/issues/9306 for more details.
---
 src/compiler/parser/index.js                  | 118 ++++++++++++------
 .../component/component-scoped-slot.spec.js   | 101 +++++++++++++++
 2 files changed, 179 insertions(+), 40 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 65e334d647a..49a171e10c3 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -45,6 +45,7 @@ let postTransforms
 let platformIsPreTag
 let platformMustUseProp
 let platformGetTagNamespace
+let maybeComponent
 
 export function createASTElement (
   tag: string,
@@ -74,6 +75,8 @@ export function parse (
   platformIsPreTag = options.isPreTag || no
   platformMustUseProp = options.mustUseProp || no
   platformGetTagNamespace = options.getTagNamespace || no
+  const isReservedTag = options.isReservedTag || no
+  maybeComponent = (el: ASTElement) => !!el.component || !isReservedTag(el.tag)
 
   transforms = pluckModuleFunction(options.modules, 'transformNode')
   preTransforms = pluckModuleFunction(options.modules, 'preTransformNode')
@@ -390,7 +393,8 @@ export function processElement (
   )
 
   processRef(element)
-  processSlot(element)
+  processSlotContent(element)
+  processSlotOutlet(element)
   processComponent(element)
   for (let i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element
@@ -542,7 +546,79 @@ function processOnce (el) {
   }
 }
 
-function processSlot (el) {
+// handle content being passed to a component as slot,
+// e.g. <template slot="xxx">, <div slot-scope="xxx">
+function processSlotContent (el) {
+  let slotScope
+  if (el.tag === 'template') {
+    slotScope = getAndRemoveAttr(el, 'scope')
+    /* istanbul ignore if */
+    if (process.env.NODE_ENV !== 'production' && slotScope) {
+      warn(
+        `the "scope" attribute for scoped slots have been deprecated and ` +
+        `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
+        `can also be used on plain elements in addition to <template> to ` +
+        `denote scoped slots.`,
+        el.rawAttrsMap['scope'],
+        true
+      )
+    }
+    el.slotScope = (
+      slotScope ||
+      getAndRemoveAttr(el, 'slot-scope') ||
+      // new in 2.6: slot-props and its shorthand works the same as slot-scope
+      // when used on <template> containers
+      getAndRemoveAttr(el, 'slot-props') ||
+      getAndRemoveAttr(el, '()')
+    )
+  } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+    /* istanbul ignore if */
+    if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+      warn(
+        `Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
+        `(v-for takes higher priority). Use a wrapper <template> for the ` +
+        `scoped slot to make it clearer.`,
+        el.rawAttrsMap['slot-scope'],
+        true
+      )
+    }
+    el.slotScope = slotScope
+  } else {
+    // 2.6: slot-props on component, denotes default slot
+    slotScope = getAndRemoveAttr(el, 'slot-props') || getAndRemoveAttr(el, '()')
+    if (slotScope) {
+      if (process.env.NODE_ENV !== 'production' && !maybeComponent(el)) {
+        warn(
+          `slot-props cannot be used on non-component elements.`,
+          el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
+        )
+      }
+      // add the component's children to its default slot
+      const slots = el.scopedSlots || (el.scopedSlots = {})
+      const slotContainer = slots[`"default"`] = createASTElement('template', [], el)
+      slotContainer.children = el.children
+      slotContainer.slotScope = slotScope
+      // remove children as they are returned from scopedSlots now
+      el.children = []
+      // mark el non-plain so data gets generated
+      el.plain = false
+    }
+  }
+
+  // slot="xxx"
+  const slotTarget = getBindingAttr(el, 'slot')
+  if (slotTarget) {
+    el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
+    // preserve slot as an attribute for native shadow DOM compat
+    // only for non-scoped slots.
+    if (el.tag !== 'template' && !el.slotScope) {
+      addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'))
+    }
+  }
+}
+
+// handle <slot/> outlets
+function processSlotOutlet (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name')
     if (process.env.NODE_ENV !== 'production' && el.key) {
@@ -553,44 +629,6 @@ function processSlot (el) {
         getRawBindingAttr(el, 'key')
       )
     }
-  } else {
-    let slotScope
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope')
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && slotScope) {
-        warn(
-          `the "scope" attribute for scoped slots have been deprecated and ` +
-          `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
-          `can also be used on plain elements in addition to <template> to ` +
-          `denote scoped slots.`,
-          el.rawAttrsMap['scope'],
-          true
-        )
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope')
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
-        warn(
-          `Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
-          `(v-for takes higher priority). Use a wrapper <template> for the ` +
-          `scoped slot to make it clearer.`,
-          el.rawAttrsMap['slot-scope'],
-          true
-        )
-      }
-      el.slotScope = slotScope
-    }
-    const slotTarget = getBindingAttr(el, 'slot')
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'))
-      }
-    }
   }
 }
 
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 3816e95c165..b7d5798ec22 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -631,4 +631,105 @@ describe('Component scoped slot', () => {
       expect(vm.$el.innerHTML).toBe('<p>hello</p>')
     }).then(done)
   })
+
+  // new in 2.6
+  describe('slot-props syntax', () => {
+    const Foo = {
+      render(h) {
+        return h('div', [
+          this.$scopedSlots.default && this.$scopedSlots.default('from foo default'),
+          this.$scopedSlots.one && this.$scopedSlots.one('from foo one'),
+          this.$scopedSlots.two && this.$scopedSlots.two('from foo two')
+        ])
+      }
+    }
+
+    const Bar = {
+      render(h) {
+        return this.$scopedSlots.default && this.$scopedSlots.default('from bar')[0]
+      }
+    }
+
+    const Baz = {
+      render(h) {
+        return this.$scopedSlots.default && this.$scopedSlots.default('from baz')[0]
+      }
+    }
+
+    function runSuite(syntax) {
+      it('default slot', () => {
+        const vm = new Vue({
+          template: `<foo ${syntax}="foo">{{ foo }}<div>{{ foo }}</div></foo>`,
+          components: { Foo }
+        }).$mount()
+        expect(vm.$el.innerHTML).toBe(`from foo default<div>from foo default</div>`)
+      })
+
+      it('nested default slots', () => {
+        const vm = new Vue({
+          template: `
+            <foo ${syntax}="foo">
+              <bar ${syntax}="bar">
+                <baz ${syntax}="baz">
+                  {{ foo }} | {{ bar }} | {{ baz }}
+                </baz>
+              </bar>
+            </foo>
+          `,
+          components: { Foo, Bar, Baz }
+        }).$mount()
+        expect(vm.$el.innerHTML.trim()).toBe(`from foo default | from bar | from baz`)
+      })
+
+      it('default + named slots', () => {
+        const vm = new Vue({
+          template: `
+            <foo ()="foo">
+              {{ foo }}
+              <template slot="one" ${syntax}="one">
+                {{ one }}
+              </template>
+              <template slot="two" ${syntax}="two">
+                {{ two }}
+              </template>
+            </foo>
+          `,
+          components: { Foo }
+        }).$mount()
+        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
+      })
+
+      it('nested + named + default slots', () => {
+        const vm = new Vue({
+          template: `
+            <foo>
+              <template slot="one" ${syntax}="one">
+                <bar ${syntax}="bar">
+                  {{ one }} {{ bar }}
+                </bar>
+              </template>
+              <template slot="two" ${syntax}="two">
+                <baz ${syntax}="baz">
+                  {{ two }} {{ baz }}
+                </baz>
+              </template>
+            </foo>
+          `,
+          components: { Foo, Bar, Baz }
+        }).$mount()
+        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from bar from foo two from baz`)
+      })
+
+      it('should warn slot-props usage on non-component elements', () => {
+        const vm = new Vue({
+          template: `<div ${syntax}="foo"/>`
+        }).$mount()
+        expect(`slot-props cannot be used on non-component elements`).toHaveBeenWarned()
+      })
+    }
+
+    // run tests for both full syntax and shorthand
+    runSuite('slot-props')
+    runSuite('()')
+  })
 })

From aef5b4e47811cb842315bd27d6919650da45279b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 12 Jan 2019 02:07:17 -0500
Subject: [PATCH 725/911] fix(ssr): should render 0 as valid value for style
 property with unit

---
 src/platforms/web/server/modules/style.js | 3 ++-
 test/ssr/ssr-string.spec.js               | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/platforms/web/server/modules/style.js b/src/platforms/web/server/modules/style.js
index 4d32562823a..4c7c2bbbadc 100644
--- a/src/platforms/web/server/modules/style.js
+++ b/src/platforms/web/server/modules/style.js
@@ -23,7 +23,8 @@ export function genStyle (style: Object): string {
 function normalizeValue(key: string, value: any): string {
   if (
     typeof value === 'string' ||
-    (typeof value === 'number' && noUnitNumericStyleProps[key])
+    (typeof value === 'number' && noUnitNumericStyleProps[key]) ||
+    value === 0
   ) {
     return `${key}:${value};`
   } else {
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 75bcc8cb1f1..975197b6c1b 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1529,13 +1529,14 @@ describe('SSR: renderToString', () => {
       data: {
         style: {
           opacity: 0, // valid, opacity is unit-less
-          top: 0, // invalid, top requires unit
+          top: 0, // valid, top requires unit but 0 is allowed
+          left: 10, // invalid, left requires a unit
           marginTop: '10px' // valid
         }
       }
     }, result => {
       expect(result).toContain(
-        '<div data-server-rendered="true" style="opacity:0;margin-top:10px;"></div>'
+        '<div data-server-rendered="true" style="opacity:0;top:0;margin-top:10px;"></div>'
       )
       done()
     })

From c5c354d593d6f6344e78ca098f1ae1fa3e83d6ed Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 14 Jan 2019 22:56:37 -0500
Subject: [PATCH 726/911] feat: new scoped slot syntax implementation update
 per rfc

---
 src/compiler/helpers.js                       | 14 +++++
 src/compiler/parser/index.js                  | 56 +++++++++++++----
 .../component/component-scoped-slot.spec.js   | 60 +++++++++++++++++++
 3 files changed, 118 insertions(+), 12 deletions(-)

diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 0411f1a2299..0dd80b03883 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -177,6 +177,20 @@ export function getAndRemoveAttr (
   return val
 }
 
+export function getAndRemoveAttrByRegex (
+  el: ASTElement,
+  name: RegExp
+) {
+  const list = el.attrsList
+  for (let i = 0, l = list.length; i < l; i++) {
+    const attr = list[i]
+    if (name.test(attr.name)) {
+      list.splice(i, 1)
+      return attr
+    }
+  }
+}
+
 function rangeSetItem (
   item: any,
   range?: { start?: number, end?: number }
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 49a171e10c3..87541ac1aa1 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -17,7 +17,8 @@ import {
   getBindingAttr,
   getAndRemoveAttr,
   getRawBindingAttr,
-  pluckModuleFunction
+  pluckModuleFunction,
+  getAndRemoveAttrByRegex
 } from '../helpers'
 
 export const onRE = /^@|^v-on:/
@@ -31,6 +32,8 @@ export const bindRE = /^:|^\.|^v-bind:/
 const propBindRE = /^\./
 const modifierRE = /\.[^.]+/g
 
+const scopedSlotShorthandRE = /^:?\(.*\)$/
+
 const lineBreakRE = /[\r\n]/
 const whitespaceRE = /\s+/g
 
@@ -568,9 +571,20 @@ function processSlotContent (el) {
       getAndRemoveAttr(el, 'slot-scope') ||
       // new in 2.6: slot-props and its shorthand works the same as slot-scope
       // when used on <template> containers
-      getAndRemoveAttr(el, 'slot-props') ||
-      getAndRemoveAttr(el, '()')
+      getAndRemoveAttr(el, 'slot-props')
     )
+    // 2.6 shorthand syntax
+    const shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE)
+    if (shorthand) {
+      if (process.env.NODE_ENV !== 'production' && el.slotScope) {
+        warn(
+          `Unexpected mixed usage of different slot syntaxes.`,
+          el
+        )
+      }
+      el.slotTarget = getScopedSlotShorthandName(shorthand)
+      el.slotScope = shorthand.value
+    }
   } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
@@ -585,19 +599,29 @@ function processSlotContent (el) {
     el.slotScope = slotScope
   } else {
     // 2.6: slot-props on component, denotes default slot
-    slotScope = getAndRemoveAttr(el, 'slot-props') || getAndRemoveAttr(el, '()')
-    if (slotScope) {
-      if (process.env.NODE_ENV !== 'production' && !maybeComponent(el)) {
-        warn(
-          `slot-props cannot be used on non-component elements.`,
-          el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
-        )
+    slotScope = getAndRemoveAttr(el, 'slot-props')
+    const shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE)
+    if (slotScope || shorthand) {
+      if (process.env.NODE_ENV !== 'production') {
+        if (!maybeComponent(el)) {
+          warn(
+            `slot-props cannot be used on non-component elements.`,
+            el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
+          )
+        }
+        if (slotScope && shorthand) {
+          warn(
+            `Unexpected mixed usage of different slot syntaxes.`,
+            el
+          )
+        }
       }
       // add the component's children to its default slot
       const slots = el.scopedSlots || (el.scopedSlots = {})
-      const slotContainer = slots[`"default"`] = createASTElement('template', [], el)
+      const target = shorthand ? getScopedSlotShorthandName(shorthand) : `"default"`
+      const slotContainer = slots[target] = createASTElement('template', [], el)
       slotContainer.children = el.children
-      slotContainer.slotScope = slotScope
+      slotContainer.slotScope = shorthand ? shorthand.value : slotScope
       // remove children as they are returned from scopedSlots now
       el.children = []
       // mark el non-plain so data gets generated
@@ -617,6 +641,14 @@ function processSlotContent (el) {
   }
 }
 
+function getScopedSlotShorthandName ({ name }) {
+  return name.charAt(0) === ':'
+    // dynamic :(name)
+    ? name.slice(2, -1) || `"default"`
+    // static (name)
+    : `"${name.slice(1, -1) || `default`}"`
+}
+
 // handle <slot/> outlets
 function processSlotOutlet (el) {
   if (el.tag === 'slot') {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index b7d5798ec22..9ab7bf1f481 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -731,5 +731,65 @@ describe('Component scoped slot', () => {
     // run tests for both full syntax and shorthand
     runSuite('slot-props')
     runSuite('()')
+
+    it('shorthand named slots', () => {
+      const vm = new Vue({
+        template: `
+          <foo ()="foo">
+            {{ foo }}
+            <template (one)="one">
+              {{ one }}
+            </template>
+            <template (two)="two">
+              {{ two }}
+            </template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
+    })
+
+    it('shorthand without scope variable', () => {
+      const vm = new Vue({
+        template: `
+          <foo>
+            <template (one)>one</template>
+            <template (two)>two</template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`onetwo`)
+    })
+
+    it('shorthand named slots on root', () => {
+      const vm = new Vue({
+        template: `
+          <foo (one)="one">
+            {{ one }}
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one`)
+    })
+
+    it('dynamic shorthand', () => {
+      const vm = new Vue({
+        data: {
+          a: 'one',
+          b: 'two'
+        },
+        template: `
+          <foo>
+            <template :(a)="one">{{ one }} </template>
+            <template :(b)="two">{{ two }}</template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from foo two`)
+    })
   })
 })

From 9ae80acde59d9d149ee5e4e2097f209eac6f834f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 15 Jan 2019 11:41:00 -0500
Subject: [PATCH 727/911] feat: expose performance measures

ref #7570
---
 src/core/util/perf.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/perf.js b/src/core/util/perf.js
index 4a537b2dada..c0c8a277633 100644
--- a/src/core/util/perf.js
+++ b/src/core/util/perf.js
@@ -18,7 +18,7 @@ if (process.env.NODE_ENV !== 'production') {
       perf.measure(name, startTag, endTag)
       perf.clearMarks(startTag)
       perf.clearMarks(endTag)
-      perf.clearMeasures(name)
+      // perf.clearMeasures(name)
     }
   }
 }

From 0cf6aaddb54361889231b3e2c52b34f9fa82c22d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 15 Jan 2019 12:38:58 -0500
Subject: [PATCH 728/911] types: type sync for 2.6 features

---
 src/core/vdom/helpers/normalize-scoped-slots.js | 8 ++++++--
 types/test/options-test.ts                      | 6 +++++-
 types/vnode.d.ts                                | 6 ++----
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index e1772e5608d..d8259d0a954 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -1,5 +1,7 @@
 /* @flow */
 
+import { normalizeChildren } from 'core/vdom/helpers/normalize-children'
+
 export function normalizeScopedSlots (
   slots: { [key: string]: Function } | void,
   normalSlots: { [key: string]: Array<VNode> }
@@ -27,10 +29,12 @@ export function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn: Function) {
+function normalizeScopedSlot(fn: Function): Function {
   return scope => {
     const res = fn(scope)
-    return Array.isArray(res) ? res : res ? [res] : res
+    return res && typeof res === 'object'
+      ? [res] // single vnode
+      : normalizeChildren(res)
   }
 }
 
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index de57e4c25eb..6fadd88fdab 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -338,8 +338,12 @@ Vue.component('component-with-scoped-slot', {
   components: {
     child: {
       render (this: Vue, h: CreateElement) {
+        const defaultSlot = this.$scopedSlots['default']!({ msg: 'hi' })
+        defaultSlot && defaultSlot.forEach(vnode => {
+          vnode.tag
+        })
         return h('div', [
-          this.$scopedSlots['default']!({ msg: 'hi' }),
+          defaultSlot,
           this.$scopedSlots['item']!({ msg: 'hello' })
         ])
       }
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index b32f77926f0..1116150645a 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -1,10 +1,8 @@
 import { Vue } from "./vue";
 
-// Scoped slots can technically return anything if used from
-// a render function, but this is "good enough" for templates
+// Scoped slots are guaranteed to return Array of VNodes starting in 2.6
 export type ScopedSlot = (props: any) => ScopedSlotChildren;
-export type ScopedSlotChildren = ScopedSlotArrayContents | VNode | string | undefined;
-export interface ScopedSlotArrayContents extends Array<ScopedSlotChildren> {}
+export type ScopedSlotChildren = VNode[] | undefined;
 
 // Relaxed type compatible with $createElement
 export type VNodeChildren = VNodeChildrenArrayContents | [ScopedSlot] | string | boolean | null | undefined;

From 7fb6fdd16824d9af1b7bbff83e1c032940ee600c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 15 Jan 2019 16:22:06 -0500
Subject: [PATCH 729/911] build: introduce feature flags, hide new slot syntax
 behind flag

---
 scripts/config.js                             |   9 +-
 scripts/feature-flags.js                      |   3 +
 src/compiler/parser/index.js                  |  30 ++-
 .../vdom/helpers/normalize-scoped-slots.js    |   2 +-
 .../component/component-scoped-slot.spec.js   | 250 +++++++++---------
 test/unit/karma.base.config.js                |   4 +-
 6 files changed, 156 insertions(+), 142 deletions(-)
 create mode 100644 scripts/feature-flags.js

diff --git a/scripts/config.js b/scripts/config.js
index 677ee2eb1d4..183d0203708 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -7,6 +7,7 @@ const node = require('rollup-plugin-node-resolve')
 const flow = require('rollup-plugin-flow-no-whitespace')
 const version = process.env.VERSION || require('../package.json').version
 const weexVersion = process.env.WEEX_VERSION || require('../packages/weex-vue-framework/package.json').version
+const featureFlags = require('./feature-flags')
 
 const banner =
   '/*!\n' +
@@ -241,9 +242,13 @@ function genConfig (name) {
   }
 
   if (opts.env) {
-    config.plugins.push(replace({
+    const vars = {
       'process.env.NODE_ENV': JSON.stringify(opts.env)
-    }))
+    }
+    Object.keys(featureFlags).forEach(key => {
+      vars[`process.env.${key}`] = featureFlags[key]
+    })
+    config.plugins.push(replace(vars))
   }
 
   if (opts.transpile !== false) {
diff --git a/scripts/feature-flags.js b/scripts/feature-flags.js
new file mode 100644
index 00000000000..35d55ea7812
--- /dev/null
+++ b/scripts/feature-flags.js
@@ -0,0 +1,3 @@
+module.exports = {
+  NEW_SLOT_SYNTAX: false
+}
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 87541ac1aa1..c7110bfad59 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -568,22 +568,24 @@ function processSlotContent (el) {
     }
     el.slotScope = (
       slotScope ||
-      getAndRemoveAttr(el, 'slot-scope') ||
+      getAndRemoveAttr(el, 'slot-scope')
+    )
+    if (process.env.NEW_SLOT_SYNTAX) {
       // new in 2.6: slot-props and its shorthand works the same as slot-scope
       // when used on <template> containers
-      getAndRemoveAttr(el, 'slot-props')
-    )
-    // 2.6 shorthand syntax
-    const shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE)
-    if (shorthand) {
-      if (process.env.NODE_ENV !== 'production' && el.slotScope) {
-        warn(
-          `Unexpected mixed usage of different slot syntaxes.`,
-          el
-        )
+      el.slotScope = el.slotScope || getAndRemoveAttr(el, 'slot-props')
+      // 2.6 shorthand syntax
+      const shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE)
+      if (shorthand) {
+        if (process.env.NODE_ENV !== 'production' && el.slotScope) {
+          warn(
+            `Unexpected mixed usage of different slot syntaxes.`,
+            el
+          )
+        }
+        el.slotTarget = getScopedSlotShorthandName(shorthand)
+        el.slotScope = shorthand.value
       }
-      el.slotTarget = getScopedSlotShorthandName(shorthand)
-      el.slotScope = shorthand.value
     }
   } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
     /* istanbul ignore if */
@@ -597,7 +599,7 @@ function processSlotContent (el) {
       )
     }
     el.slotScope = slotScope
-  } else {
+  } else if (process.env.NEW_SLOT_SYNTAX) {
     // 2.6: slot-props on component, denotes default slot
     slotScope = getAndRemoveAttr(el, 'slot-props')
     const shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE)
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index d8259d0a954..5e5f0091e79 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -32,7 +32,7 @@ export function normalizeScopedSlots (
 function normalizeScopedSlot(fn: Function): Function {
   return scope => {
     const res = fn(scope)
-    return res && typeof res === 'object'
+    return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
   }
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 9ab7bf1f481..1cb6820abdb 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -632,64 +632,116 @@ describe('Component scoped slot', () => {
     }).then(done)
   })
 
-  // new in 2.6
-  describe('slot-props syntax', () => {
-    const Foo = {
-      render(h) {
-        return h('div', [
-          this.$scopedSlots.default && this.$scopedSlots.default('from foo default'),
-          this.$scopedSlots.one && this.$scopedSlots.one('from foo one'),
-          this.$scopedSlots.two && this.$scopedSlots.two('from foo two')
-        ])
+  // 2.6 new slot syntax
+  if (process.env.NEW_SLOT_SYNTAX) {
+    describe('slot-props syntax', () => {
+      const Foo = {
+        render(h) {
+          return h('div', [
+            this.$scopedSlots.default && this.$scopedSlots.default('from foo default'),
+            this.$scopedSlots.one && this.$scopedSlots.one('from foo one'),
+            this.$scopedSlots.two && this.$scopedSlots.two('from foo two')
+          ])
+        }
       }
-    }
 
-    const Bar = {
-      render(h) {
-        return this.$scopedSlots.default && this.$scopedSlots.default('from bar')[0]
+      const Bar = {
+        render(h) {
+          return this.$scopedSlots.default && this.$scopedSlots.default('from bar')
+        }
       }
-    }
 
-    const Baz = {
-      render(h) {
-        return this.$scopedSlots.default && this.$scopedSlots.default('from baz')[0]
+      const Baz = {
+        render(h) {
+          return this.$scopedSlots.default && this.$scopedSlots.default('from baz')
+        }
       }
-    }
 
-    function runSuite(syntax) {
-      it('default slot', () => {
-        const vm = new Vue({
-          template: `<foo ${syntax}="foo">{{ foo }}<div>{{ foo }}</div></foo>`,
-          components: { Foo }
-        }).$mount()
-        expect(vm.$el.innerHTML).toBe(`from foo default<div>from foo default</div>`)
-      })
+      function runSuite(syntax) {
+        it('default slot', () => {
+          const vm = new Vue({
+            template: `<foo ${syntax}="foo">{{ foo }}<div>{{ foo }}</div></foo>`,
+            components: { Foo }
+          }).$mount()
+          expect(vm.$el.innerHTML).toBe(`from foo default<div>from foo default</div>`)
+        })
 
-      it('nested default slots', () => {
-        const vm = new Vue({
-          template: `
-            <foo ${syntax}="foo">
-              <bar ${syntax}="bar">
-                <baz ${syntax}="baz">
-                  {{ foo }} | {{ bar }} | {{ baz }}
-                </baz>
-              </bar>
-            </foo>
-          `,
-          components: { Foo, Bar, Baz }
-        }).$mount()
-        expect(vm.$el.innerHTML.trim()).toBe(`from foo default | from bar | from baz`)
-      })
+        it('nested default slots', () => {
+          const vm = new Vue({
+            template: `
+              <foo ${syntax}="foo">
+                <bar ${syntax}="bar">
+                  <baz ${syntax}="baz">
+                    {{ foo }} | {{ bar }} | {{ baz }}
+                  </baz>
+                </bar>
+              </foo>
+            `,
+            components: { Foo, Bar, Baz }
+          }).$mount()
+          expect(vm.$el.innerHTML.trim()).toBe(`from foo default | from bar | from baz`)
+        })
+
+        it('default + named slots', () => {
+          const vm = new Vue({
+            template: `
+              <foo ()="foo">
+                {{ foo }}
+                <template slot="one" ${syntax}="one">
+                  {{ one }}
+                </template>
+                <template slot="two" ${syntax}="two">
+                  {{ two }}
+                </template>
+              </foo>
+            `,
+            components: { Foo }
+          }).$mount()
+          expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
+        })
+
+        it('nested + named + default slots', () => {
+          const vm = new Vue({
+            template: `
+              <foo>
+                <template slot="one" ${syntax}="one">
+                  <bar ${syntax}="bar">
+                    {{ one }} {{ bar }}
+                  </bar>
+                </template>
+                <template slot="two" ${syntax}="two">
+                  <baz ${syntax}="baz">
+                    {{ two }} {{ baz }}
+                  </baz>
+                </template>
+              </foo>
+            `,
+            components: { Foo, Bar, Baz }
+          }).$mount()
+          expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from bar from foo two from baz`)
+        })
+
+        it('should warn slot-props usage on non-component elements', () => {
+          const vm = new Vue({
+            template: `<div ${syntax}="foo"/>`
+          }).$mount()
+          expect(`slot-props cannot be used on non-component elements`).toHaveBeenWarned()
+        })
+      }
+
+      // run tests for both full syntax and shorthand
+      runSuite('slot-props')
+      runSuite('()')
 
-      it('default + named slots', () => {
+      it('shorthand named slots', () => {
         const vm = new Vue({
           template: `
             <foo ()="foo">
               {{ foo }}
-              <template slot="one" ${syntax}="one">
+              <template (one)="one">
                 {{ one }}
               </template>
-              <template slot="two" ${syntax}="two">
+              <template (two)="two">
                 {{ two }}
               </template>
             </foo>
@@ -699,97 +751,47 @@ describe('Component scoped slot', () => {
         expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
       })
 
-      it('nested + named + default slots', () => {
+      it('shorthand without scope variable', () => {
         const vm = new Vue({
           template: `
             <foo>
-              <template slot="one" ${syntax}="one">
-                <bar ${syntax}="bar">
-                  {{ one }} {{ bar }}
-                </bar>
-              </template>
-              <template slot="two" ${syntax}="two">
-                <baz ${syntax}="baz">
-                  {{ two }} {{ baz }}
-                </baz>
-              </template>
+              <template (one)>one</template>
+              <template (two)>two</template>
             </foo>
           `,
-          components: { Foo, Bar, Baz }
+          components: { Foo }
         }).$mount()
-        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from bar from foo two from baz`)
+        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`onetwo`)
       })
 
-      it('should warn slot-props usage on non-component elements', () => {
+      it('shorthand named slots on root', () => {
         const vm = new Vue({
-          template: `<div ${syntax}="foo"/>`
+          template: `
+            <foo (one)="one">
+              {{ one }}
+            </foo>
+          `,
+          components: { Foo }
         }).$mount()
-        expect(`slot-props cannot be used on non-component elements`).toHaveBeenWarned()
+        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one`)
       })
-    }
-
-    // run tests for both full syntax and shorthand
-    runSuite('slot-props')
-    runSuite('()')
-
-    it('shorthand named slots', () => {
-      const vm = new Vue({
-        template: `
-          <foo ()="foo">
-            {{ foo }}
-            <template (one)="one">
-              {{ one }}
-            </template>
-            <template (two)="two">
-              {{ two }}
-            </template>
-          </foo>
-        `,
-        components: { Foo }
-      }).$mount()
-      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
-    })
 
-    it('shorthand without scope variable', () => {
-      const vm = new Vue({
-        template: `
-          <foo>
-            <template (one)>one</template>
-            <template (two)>two</template>
-          </foo>
-        `,
-        components: { Foo }
-      }).$mount()
-      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`onetwo`)
-    })
-
-    it('shorthand named slots on root', () => {
-      const vm = new Vue({
-        template: `
-          <foo (one)="one">
-            {{ one }}
-          </foo>
-        `,
-        components: { Foo }
-      }).$mount()
-      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one`)
-    })
-
-    it('dynamic shorthand', () => {
-      const vm = new Vue({
-        data: {
-          a: 'one',
-          b: 'two'
-        },
-        template: `
-          <foo>
-            <template :(a)="one">{{ one }} </template>
-            <template :(b)="two">{{ two }}</template>
-          </foo>
-        `,
-        components: { Foo }
-      }).$mount()
-      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from foo two`)
+      it('dynamic shorthand', () => {
+        const vm = new Vue({
+          data: {
+            a: 'one',
+            b: 'two'
+          },
+          template: `
+            <foo>
+              <template :(a)="one">{{ one }} </template>
+              <template :(b)="two">{{ two }}</template>
+            </foo>
+          `,
+          components: { Foo }
+        }).$mount()
+        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from foo two`)
+      })
     })
-  })
+  }
 })
diff --git a/test/unit/karma.base.config.js b/test/unit/karma.base.config.js
index 2b30378f728..700ad6c093c 100644
--- a/test/unit/karma.base.config.js
+++ b/test/unit/karma.base.config.js
@@ -1,4 +1,5 @@
 const alias = require('../../scripts/alias')
+const featureFlags = require('../../scripts/feature-flags')
 const webpack = require('webpack')
 
 const webpackConfig = {
@@ -20,7 +21,8 @@ const webpackConfig = {
       __WEEX__: false,
       'process.env': {
         TRANSITION_DURATION: process.env.CI ? 100 : 50,
-        TRANSITION_BUFFER: 10
+        TRANSITION_BUFFER: 10,
+        ...featureFlags
       }
     })
   ],

From 730a10f771cf722fd28994b0501ad7b04534882a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 15 Jan 2019 17:41:42 -0500
Subject: [PATCH 730/911] types: type sync for template-compiler and
 server-renderer

---
 packages/vue-server-renderer/types/index.d.ts   | 1 +
 packages/vue-template-compiler/types/index.d.ts | 1 +
 packages/vue-template-compiler/types/test.ts    | 8 ++++++--
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/packages/vue-server-renderer/types/index.d.ts b/packages/vue-server-renderer/types/index.d.ts
index 1c7e8bdd42c..e1ab698940b 100644
--- a/packages/vue-server-renderer/types/index.d.ts
+++ b/packages/vue-server-renderer/types/index.d.ts
@@ -38,6 +38,7 @@ interface RendererOptions {
 
 interface BundleRendererOptions extends RendererOptions {
   clientManifest?: object;
+  serializer?: (state: object) => string;
   runInNewContext?: boolean | 'once';
   basedir?: string;
 }
diff --git a/packages/vue-template-compiler/types/index.d.ts b/packages/vue-template-compiler/types/index.d.ts
index 09c3e527d78..d84b3af678e 100644
--- a/packages/vue-template-compiler/types/index.d.ts
+++ b/packages/vue-template-compiler/types/index.d.ts
@@ -189,6 +189,7 @@ export interface ASTText {
  */
 interface SFCParserOptions {
   pad?: true | 'line' | 'space';
+  deindent?: boolean
 }
 
 export interface SFCBlock {
diff --git a/packages/vue-template-compiler/types/test.ts b/packages/vue-template-compiler/types/test.ts
index fbc6dd3d25c..b0e6cb1549f 100644
--- a/packages/vue-template-compiler/types/test.ts
+++ b/packages/vue-template-compiler/types/test.ts
@@ -4,7 +4,8 @@ import {
   compileToFunctions,
   ssrCompile,
   ssrCompileToFunctions,
-  parseComponent
+  parseComponent,
+  generateCodeFrame
 } from "./";
 
 // check compile options
@@ -78,9 +79,12 @@ const vnode: VNode = compiledFns.render.call(vm);
 
 // check SFC parser
 const desc = parseComponent("<template></template>", {
-  pad: "space"
+  pad: "space",
+  deindent: false
 });
 
 const templateContent: string = desc.template!.content;
 const scriptContent: string = desc.script!.content;
 const styleContent: string = desc.styles.map(s => s.content).join("\n");
+
+const codeframe: string = generateCodeFrame(`foobar`, 0, 4)

From e75c6230473ba324352547f8356bce12f69c3f9d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 16 Jan 2019 11:20:25 -0500
Subject: [PATCH 731/911] build: build v2.6.0-beta.1

---
 dist/vue.esm.js                             | 1125 +++++++++++++------
 dist/vue.js                                 | 1057 +++++++++++------
 dist/vue.min.js                             |    4 +-
 dist/vue.runtime.esm.js                     |  371 ++++--
 dist/vue.runtime.js                         |  378 ++++---
 dist/vue.runtime.min.js                     |    4 +-
 packages/vue-server-renderer/basic.js       | 1006 ++++++++++++-----
 packages/vue-server-renderer/build.dev.js   | 1030 ++++++++++++-----
 packages/vue-server-renderer/build.prod.js  |    2 +-
 packages/vue-server-renderer/package.json   |    2 +-
 packages/vue-template-compiler/browser.js   |  808 ++++++++-----
 packages/vue-template-compiler/build.js     |  880 ++++++++++-----
 packages/vue-template-compiler/package.json |    2 +-
 13 files changed, 4688 insertions(+), 1981 deletions(-)

diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 790ac604dda..84f57e6326e 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.22
+ * Vue.js v2.6.0-beta.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -76,13 +76,21 @@ function isValidArrayIndex (val) {
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
+function isPromise (val) {
+  return (
+    isDef(val) &&
+    typeof val.then === 'function' &&
+    typeof val.catch === 'function'
+  )
+}
+
 /**
  * Convert a value to a string that is actually rendered.
  */
 function toString (val) {
   return val == null
     ? ''
-    : typeof val === 'object'
+    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
       ? JSON.stringify(val, null, 2)
       : String(val)
 }
@@ -358,7 +366,8 @@ var LIFECYCLE_HOOKS = [
   'destroyed',
   'activated',
   'deactivated',
-  'errorCaptured'
+  'errorCaptured',
+  'ssrPrefetch'
 ];
 
 /*  */
@@ -461,6 +470,13 @@ var config = ({
 
 /*  */
 
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
 /**
  * Check if a string starts with $ or _
  */
@@ -484,7 +500,7 @@ function def (obj, key, val, enumerable) {
 /**
  * Parse simple path.
  */
-var bailRE = /[^\w.$]/;
+var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
 function parsePath (path) {
   if (bailRE.test(path)) {
     return
@@ -515,6 +531,7 @@ var isEdge = UA && UA.indexOf('edge/') > 0;
 var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+var isPhantomJS = UA && /phantomjs/.test(UA);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -1160,9 +1177,15 @@ if (process.env.NODE_ENV !== 'production') {
 function mergeData (to, from) {
   if (!from) { return to }
   var key, toVal, fromVal;
-  var keys = Object.keys(from);
+
+  var keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from);
+
   for (var i = 0; i < keys.length; i++) {
     key = keys[i];
+    // in case the object is already observed...
+    if (key === '__ob__') { continue }
     toVal = to[key];
     fromVal = from[key];
     if (!hasOwn(to, key)) {
@@ -1382,11 +1405,10 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
+      'should conform to valid custom element name in html5 specification.'
     );
   }
   if (isBuiltInTag(name) || config.isReservedTag(name)) {
@@ -1469,9 +1491,9 @@ function normalizeDirectives (options) {
   var dirs = options.directives;
   if (dirs) {
     for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
+      var def$$1 = dirs[key];
+      if (typeof def$$1 === 'function') {
+        dirs[key] = { bind: def$$1, update: def$$1 };
       }
     }
   }
@@ -1821,6 +1843,25 @@ function handleError (err, vm, info) {
   globalHandleError(err, vm, info);
 }
 
+function invokeWithErrorHandling (
+  handler,
+  context,
+  args,
+  vm,
+  info
+) {
+  var res;
+  try {
+    res = args ? handler.apply(context, args) : handler.call(context);
+    if (isPromise(res)) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+    }
+  } catch (e) {
+    handleError(e, vm, info);
+  }
+  return res
+}
+
 function globalHandleError (err, vm, info) {
   if (config.errorHandler) {
     try {
@@ -1858,76 +1899,67 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
+// Here we have async deferring wrappers using microtasks.
+// In 2.5 we used (macro) tasks (in combination with microtasks).
+// However, it has subtle problems when state is changed right before repaint
+// (e.g. #6813, out-in transitions).
+// Also, using (macro) tasks in event handler would cause some weird behaviors
+// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+// So we now use microtasks everywhere, again.
+// A major drawback of this tradeoff is that there are some scenarios
+// where microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690, which have workarounds)
+// or even between bubbling of the same event (#6566).
+var timerFunc;
+
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
-  microTimerFunc = function () {
+  timerFunc = function () {
     p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // In problematic UIWebViews, Promise.then doesn't completely break, but
     // it can get stuck in a weird state where callbacks are pushed into the
     // microtask queue but the queue isn't being flushed, until the browser
     // needs to do some other work, e.g. handle a timer. Therefore we can
     // "force" the microtask queue to be flushed by adding an empty timer.
     if (isIOS) { setTimeout(noop); }
   };
+} else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  var counter = 1;
+  var observer = new MutationObserver(flushCallbacks);
+  var textNode = document.createTextNode(String(counter));
+  observer.observe(textNode, {
+    characterData: true
+  });
+  timerFunc = function () {
+    counter = (counter + 1) % 2;
+    textNode.data = String(counter);
+  };
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  // Fallback to setImmediate.
+  // Techinically it leverages the (macro) task queue,
+  // but it is still a better choice than setTimeout.
+  timerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
 } else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;    
-    }
-  })
+  // Fallback to setTimeout.
+  timerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
 }
 
 function nextTick (cb, ctx) {
@@ -1945,11 +1977,7 @@ function nextTick (cb, ctx) {
   });
   if (!pending) {
     pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
+    timerFunc();
   }
   // $flow-disable-line
   if (!cb && typeof Promise !== 'undefined') {
@@ -1979,7 +2007,7 @@ if (process.env.NODE_ENV !== 'production') {
       perf.measure(name, startTag, endTag);
       perf.clearMarks(startTag);
       perf.clearMarks(endTag);
-      perf.clearMeasures(name);
+      // perf.clearMeasures(name)
     };
   }
 }
@@ -2126,7 +2154,7 @@ var normalizeEvent = cached(function (name) {
   }
 });
 
-function createFnInvoker (fns) {
+function createFnInvoker (fns, vm) {
   function invoker () {
     var arguments$1 = arguments;
 
@@ -2134,11 +2162,11 @@ function createFnInvoker (fns) {
     if (Array.isArray(fns)) {
       var cloned = fns.slice();
       for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
+        invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
       }
     } else {
       // return handler return value for single handlers
-      return fns.apply(null, arguments)
+      return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
     }
   }
   invoker.fns = fns;
@@ -2165,7 +2193,7 @@ function updateListeners (
       );
     } else if (isUndef(old)) {
       if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
+        cur = on[name] = createFnInvoker(cur, vm);
       }
       if (isTrue(event.once)) {
         cur = on[name] = createOnceHandler(event.name, cur, event.capture);
@@ -2461,12 +2489,12 @@ function resolveAsyncComponent (
     var res = factory(resolve, reject);
 
     if (isObject(res)) {
-      if (typeof res.then === 'function') {
+      if (isPromise(res)) {
         // () => Promise
         if (isUndef(factory.resolved)) {
           res.then(resolve, reject);
         }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+      } else if (isPromise(res.component)) {
         res.component.then(resolve, reject);
 
         if (isDef(res.error)) {
@@ -2656,12 +2684,9 @@ function eventsMixin (Vue) {
     if (cbs) {
       cbs = cbs.length > 1 ? toArray(cbs) : cbs;
       var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
       for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
       }
     }
     return vm
@@ -2679,10 +2704,10 @@ function resolveSlots (
   children,
   context
 ) {
-  var slots = {};
-  if (!children) {
-    return slots
+  if (!children || !children.length) {
+    return {}
   }
+  var slots = {};
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2725,10 +2750,11 @@ function resolveScopedSlots (
 ) {
   res = res || {};
   for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, res);
     } else {
-      res[fns[i].key] = fns[i].fn;
+      res[slot.key] = slot.fn;
     }
   }
   return res
@@ -3041,13 +3067,10 @@ function callHook (vm, hook) {
   // #7573 disable dep collection when invoking lifecycle hooks
   pushTarget();
   var handlers = vm.$options[hook];
+  var info = hook + " hook";
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
     }
   }
   if (vm._hasHookEvent) {
@@ -3795,14 +3818,13 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
+      ? Reflect.ownKeys(inject)
       : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
@@ -3829,6 +3851,48 @@ function resolveInject (inject, vm) {
 
 /*  */
 
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key]) {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
+  }
+  res._normalized = true;
+  return res
+}
+
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
+
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
+}
+
+/*  */
+
 /**
  * Runtime helper for rendering v-for lists.
  */
@@ -3848,11 +3912,21 @@ function renderList (
       ret[i] = render(i + 1, i);
     }
   } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
+      }
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
     }
   }
   if (!isDef(ret)) {
@@ -4133,13 +4207,20 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
+
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
     this.$options = options;
     // pre-resolve slots for renderSlot()
     this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
   }
 
   if (options._scopeId) {
@@ -4650,7 +4731,10 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
     }
 
     // set parent vnode. this allows render functions to have access
@@ -4676,6 +4760,10 @@ function renderMixin (Vue) {
         vnode = vm._vnode;
       }
     }
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
+    }
     // return empty vnode in case the render function errored out
     if (!(vnode instanceof VNode)) {
       if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
@@ -5145,6 +5233,12 @@ function initGlobalAPI (Vue) {
   Vue.delete = del;
   Vue.nextTick = nextTick;
 
+  // 2.6 explicit observable API
+  Vue.observable = function (obj) {
+    observe(obj);
+    return obj
+  };
+
   Vue.options = Object.create(null);
   ASSET_TYPES.forEach(function (type) {
     Vue.options[type + 's'] = Object.create(null);
@@ -5180,7 +5274,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.22';
+Vue.version = '2.6.0-beta.1';
 
 /*  */
 
@@ -6649,9 +6743,13 @@ function wrapFilter (exp, filter) {
 
 /*  */
 
-function baseWarn (msg) {
+
+
+/* eslint-disable no-unused-vars */
+function baseWarn (msg, range) {
   console.error(("[Vue compiler]: " + msg));
 }
+/* eslint-enable no-unused-vars */
 
 function pluckModuleFunction (
   modules,
@@ -6662,20 +6760,20 @@ function pluckModuleFunction (
     : []
 }
 
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
+function addProp (el, name, value, range) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
   el.plain = false;
 }
 
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+function addAttr (el, name, value, range) {
+  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
   el.plain = false;
 }
 
 // add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
+function addRawAttr (el, name, value, range) {
   el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
+  el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
 }
 
 function addDirective (
@@ -6684,9 +6782,10 @@ function addDirective (
   rawName,
   value,
   arg,
-  modifiers
+  modifiers,
+  range
 ) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
   el.plain = false;
 }
 
@@ -6696,7 +6795,8 @@ function addHandler (
   value,
   modifiers,
   important,
-  warn
+  warn,
+  range
 ) {
   modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
@@ -6707,7 +6807,8 @@ function addHandler (
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
+      'Passive handler can\'t prevent default event.',
+      range
     );
   }
 
@@ -6746,9 +6847,7 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = {
-    value: value.trim()
-  };
+  var newHandler = rangeSetItem({ value: value.trim() }, range);
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -6766,6 +6865,15 @@ function addHandler (
   el.plain = false;
 }
 
+function getRawBindingAttr (
+  el,
+  name
+) {
+  return el.rawAttrsMap[':' + name] ||
+    el.rawAttrsMap['v-bind:' + name] ||
+    el.rawAttrsMap[name]
+}
+
 function getBindingAttr (
   el,
   name,
@@ -6809,6 +6917,35 @@ function getAndRemoveAttr (
   return val
 }
 
+function getAndRemoveAttrByRegex (
+  el,
+  name
+) {
+  var list = el.attrsList;
+  for (var i = 0, l = list.length; i < l; i++) {
+    var attr = list[i];
+    if (name.test(attr.name)) {
+      list.splice(i, 1);
+      return attr
+    }
+  }
+}
+
+function rangeSetItem (
+  item,
+  range
+) {
+  if (range) {
+    if (range.start != null) {
+      item.start = range.start;
+    }
+    if (range.end != null) {
+      item.end = range.end;
+    }
+  }
+  return item
+}
+
 /*  */
 
 /**
@@ -6983,7 +7120,8 @@ function model (
     if (tag === 'input' && type === 'file') {
       warn$1(
         "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
+        "File inputs are read only. Use a v-on:change listener instead.",
+        el.rawAttrsMap['v-model']
       );
     }
   }
@@ -7009,7 +7147,8 @@ function model (
       "<" + (el.tag) + " v-model=\"" + value + "\">: " +
       "v-model is not supported on this element type. " +
       'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
+      'wrap a library dedicated for that purpose inside a custom component.',
+      el.rawAttrsMap['v-model']
     );
   }
 
@@ -7093,7 +7232,8 @@ function genDefaultModel (
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$1(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
+        'because the latter already expands to a value binding internally',
+        el.rawAttrsMap[binding]
       );
     }
   }
@@ -7165,14 +7305,28 @@ function createOnceHandler$1 (event, handler, capture) {
 }
 
 function add$1 (
-  event,
+  name,
   handler,
   capture,
   passive
 ) {
-  handler = withMacroTask(handler);
+  if (isChrome) {
+    // async edge case #6566: inner click event triggers patch, event handler
+    // attached to outer element during patch, and triggered again. This only
+    // happens in Chrome as it fires microtask ticks between event propagation.
+    // the solution is simple: we save the timestamp when a handler is attached,
+    // and the handler would only fire if the event passed to it was fired
+    // AFTER it was attached.
+    var now = performance.now();
+    var original = handler;
+    handler = original._wrapper = function (e) {
+      if (e.timeStamp >= now) {
+        return original.apply(this, arguments)
+      }
+    };
+  }
   target$1.addEventListener(
-    event,
+    name,
     handler,
     supportsPassive
       ? { capture: capture, passive: passive }
@@ -7181,14 +7335,14 @@ function add$1 (
 }
 
 function remove$2 (
-  event,
+  name,
   handler,
   capture,
   _target
 ) {
   (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
+    name,
+    handler._wrapper || handler,
     capture
   );
 }
@@ -7212,6 +7366,8 @@ var events = {
 
 /*  */
 
+var svgContainer;
+
 function updateDOMProps (oldVnode, vnode) {
   if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
     return
@@ -7245,6 +7401,17 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
+    // #4521: if a click event triggers update before the change event is
+    // dispatched on a checkbox/radio input, the input's checked state will
+    // be reset and fail to trigger another update.
+    // The root cause here is that browsers may fire microtasks in between click/change.
+    // In Chrome / Firefox, click event fires before change, thus having this problem.
+    // In Safari / Edge, the order is opposite.
+    // Note: in Edge, if you click too fast, only the click event would fire twice.
+    if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+      continue
+    }
+
     if (key === 'value') {
       // store value as _value as well since
       // non-string values will be stringified
@@ -7254,6 +7421,17 @@ function updateDOMProps (oldVnode, vnode) {
       if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
+    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+      // IE doesn't support innerHTML for SVG elements
+      svgContainer = svgContainer || document.createElement('div');
+      svgContainer.innerHTML = "<svg>" + cur + "</svg>";
+      var svg = svgContainer.firstChild;
+      while (elm.firstChild) {
+        elm.removeChild(elm.firstChild);
+      }
+      while (svg.firstChild) {
+        elm.appendChild(svg.firstChild);
+      }
     } else {
       elm[key] = cur;
     }
@@ -7285,10 +7463,6 @@ function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
   if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
     if (modifiers.number) {
       return toNumber(value) !== toNumber(newVal)
     }
@@ -8657,8 +8831,7 @@ if (inBrowser) {
         devtools.emit('init', Vue);
       } else if (
         process.env.NODE_ENV !== 'production' &&
-        process.env.NODE_ENV !== 'test' &&
-        isChrome
+        process.env.NODE_ENV !== 'test'
       ) {
         console[console.info ? 'info' : 'log'](
           'Download the Vue Devtools extension for a better development experience:\n' +
@@ -8740,7 +8913,8 @@ function transformNode (el, options) {
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
         'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
+        'instead of <div class="{{ val }}">, use <div :class="val">.',
+        el.rawAttrsMap['class']
       );
     }
   }
@@ -8784,7 +8958,8 @@ function transformNode$1 (el, options) {
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
           'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
+          'instead of <div style="{{ val }}">, use <div :style="val">.',
+          el.rawAttrsMap['style']
         );
       }
     }
@@ -8855,9 +9030,7 @@ var isNonPhrasingTag = makeMap(
 
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
@@ -8910,7 +9083,7 @@ function parseHTML (html, options) {
 
           if (commentEnd >= 0) {
             if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
+              options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
             }
             advance(commentEnd + 3);
             continue
@@ -8970,16 +9143,18 @@ function parseHTML (html, options) {
           rest = html.slice(textEnd);
         }
         text = html.substring(0, textEnd);
-        advance(textEnd);
       }
 
       if (textEnd < 0) {
         text = html;
-        html = '';
+      }
+
+      if (text) {
+        advance(text.length);
       }
 
       if (options.chars && text) {
-        options.chars(text);
+        options.chars(text, index - text.length, index);
       }
     } else {
       var endTagLength = 0;
@@ -9008,7 +9183,7 @@ function parseHTML (html, options) {
     if (html === last) {
       options.chars && options.chars(html);
       if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
       }
       break
     }
@@ -9033,7 +9208,9 @@ function parseHTML (html, options) {
       advance(start[0].length);
       var end, attr;
       while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        attr.start = index;
         advance(attr[0].length);
+        attr.end = index;
         match.attrs.push(attr);
       }
       if (end) {
@@ -9072,10 +9249,14 @@ function parseHTML (html, options) {
         name: args[1],
         value: decodeAttr(value, shouldDecodeNewlines)
       };
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        attrs[i].start = args.start + args[0].match(/^\s*/).length;
+        attrs[i].end = args.end;
+      }
     }
 
     if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
       lastTag = tagName;
     }
 
@@ -9110,7 +9291,8 @@ function parseHTML (html, options) {
           options.warn
         ) {
           options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+            ("tag <" + (stack[i].tag) + "> has no matching end tag."),
+            { start: stack[i].start }
           );
         }
         if (options.end) {
@@ -9139,15 +9321,21 @@ function parseHTML (html, options) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
+var dirRE = /^v-|^@|^:|^\./;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
+var bindRE = /^:|^\.|^v-bind:/;
+var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
+var scopedSlotShorthandRE = /^:?\(.*\)$/;
+
+var lineBreakRE = /[\r\n]/;
+var whitespaceRE$1 = /\s+/g;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -9159,8 +9347,7 @@ var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
-
-
+var maybeComponent;
 
 function createASTElement (
   tag,
@@ -9172,6 +9359,7 @@ function createASTElement (
     tag: tag,
     attrsList: attrs,
     attrsMap: makeAttrsMap(attrs),
+    rawAttrsMap: {},
     parent: parent,
     children: []
   }
@@ -9189,6 +9377,8 @@ function parse (
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
   platformGetTagNamespace = options.getTagNamespace || no;
+  var isReservedTag = options.isReservedTag || no;
+  maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
   preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -9198,20 +9388,55 @@ function parse (
 
   var stack = [];
   var preserveWhitespace = options.preserveWhitespace !== false;
+  var whitespaceOption = options.whitespace;
   var root;
   var currentParent;
   var inVPre = false;
   var inPre = false;
   var warned = false;
 
-  function warnOnce (msg) {
+  function warnOnce (msg, range) {
     if (!warned) {
       warned = true;
-      warn$2(msg);
+      warn$2(msg, range);
     }
   }
 
   function closeElement (element) {
+    if (!inVPre && !element.processed) {
+      element = processElement(element, options);
+    }
+    // tree management
+    if (!stack.length && element !== root) {
+      // allow root elements with v-if, v-else-if and v-else
+      if (root.if && (element.elseif || element.else)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkRootConstraints(element);
+        }
+        addIfCondition(root, {
+          exp: element.elseif,
+          block: element
+        });
+      } else if (process.env.NODE_ENV !== 'production') {
+        warnOnce(
+          "Component template should contain exactly one root element. " +
+          "If you are using v-if on multiple elements, " +
+          "use v-else-if to chain them instead.",
+          { start: element.start }
+        );
+      }
+    }
+    if (currentParent && !element.forbidden) {
+      if (element.elseif || element.else) {
+        processIfConditions(element, currentParent);
+      } else if (element.slotScope) { // scoped slot
+        var name = element.slotTarget || '"default"'
+        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+      } else {
+        currentParent.children.push(element);
+        element.parent = currentParent;
+      }
+    }
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -9225,6 +9450,23 @@ function parse (
     }
   }
 
+  function checkRootConstraints (el) {
+    if (el.tag === 'slot' || el.tag === 'template') {
+      warnOnce(
+        "Cannot use <" + (el.tag) + "> as component root element because it may " +
+        'contain multiple nodes.',
+        { start: el.start }
+      );
+    }
+    if (el.attrsMap.hasOwnProperty('v-for')) {
+      warnOnce(
+        'Cannot use v-for on stateful component root element because ' +
+        'it renders multiple elements.',
+        el.rawAttrsMap['v-for']
+      );
+    }
+  }
+
   parseHTML(template, {
     warn: warn$2,
     expectHTML: options.expectHTML,
@@ -9233,7 +9475,8 @@ function parse (
     shouldDecodeNewlines: options.shouldDecodeNewlines,
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
+    outputSourceRange: options.outputSourceRange,
+    start: function start (tag, attrs, unary, start$1) {
       // check namespace.
       // inherit parent ns if there is one
       var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -9249,12 +9492,21 @@ function parse (
         element.ns = ns;
       }
 
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        element.start = start$1;
+        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+          cumulated[attr.name] = attr;
+          return cumulated
+        }, {});
+      }
+
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true;
         process.env.NODE_ENV !== 'production' && warn$2(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
+          "<" + tag + ">" + ', as they will not be parsed.',
+          { start: element.start }
         );
       }
 
@@ -9279,59 +9531,15 @@ function parse (
         processFor(element);
         processIf(element);
         processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
-
-      function checkRootConstraints (el) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
       }
 
-      // tree management
       if (!root) {
         root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else if (process.env.NODE_ENV !== 'production') {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
+        if (process.env.NODE_ENV !== 'production') {
+          checkRootConstraints(root);
         }
       }
+
       if (!unary) {
         currentParent = element;
         stack.push(element);
@@ -9340,29 +9548,36 @@ function parse (
       }
     },
 
-    end: function end () {
-      // remove trailing whitespace
+    end: function end (tag, start, end$1) {
       var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
+      if (!inPre) {
+        // remove trailing whitespace node
+        var lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+          element.children.pop();
+        }
       }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        element.end = end$1;
+      }
       closeElement(element);
     },
 
-    chars: function chars (text) {
+    chars: function chars (text, start, end) {
       if (!currentParent) {
         if (process.env.NODE_ENV !== 'production') {
           if (text === template) {
             warnOnce(
-              'Component template requires a root element, rather than just text.'
+              'Component template requires a root element, rather than just text.',
+              { start: start }
             );
           } else if ((text = text.trim())) {
             warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
+              ("text \"" + text + "\" outside root element will be ignored."),
+              { start: start }
             );
           }
         }
@@ -9377,33 +9592,62 @@ function parse (
         return
       }
       var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
+      if (inPre || text.trim()) {
+        text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+      } else if (!children.length) {
+        // remove the whitespace-only node right after an opening tag
+        text = '';
+      } else if (whitespaceOption) {
+        if (whitespaceOption === 'condense') {
+          // in condense mode, remove the whitespace node if it contains
+          // line break, otherwise condense to a single space
+          text = lineBreakRE.test(text) ? '' : ' ';
+        } else {
+          text = ' ';
+        }
+      } else {
+        text = preserveWhitespace ? ' ' : '';
+      }
       if (text) {
+        if (whitespaceOption === 'condense') {
+          // condense consecutive whitespaces into single space
+          text = text.replace(whitespaceRE$1, ' ');
+        }
         var res;
+        var child;
         if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
+          child = {
             type: 2,
             expression: res.expression,
             tokens: res.tokens,
             text: text
-          });
+          };
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
+          child = {
             type: 3,
             text: text
-          });
+          };
+        }
+        if (child) {
+          if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          children.push(child);
         }
       }
     },
-    comment: function comment (text) {
-      currentParent.children.push({
+    comment: function comment (text, start, end) {
+      var child = {
         type: 3,
         text: text,
         isComment: true
-      });
+      };
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        child.start = start;
+        child.end = end;
+      }
+      currentParent.children.push(child);
     }
   });
   return root
@@ -9416,14 +9660,19 @@ function processPre (el) {
 }
 
 function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
+  var list = el.attrsList;
+  var len = list.length;
+  if (len) {
+    var attrs = el.attrs = new Array(len);
+    for (var i = 0; i < len; i++) {
       attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
+        name: list[i].name,
+        value: JSON.stringify(list[i].value)
       };
+      if (list[i].start != null) {
+        attrs[i].start = list[i].start;
+        attrs[i].end = list[i].end;
+      }
     }
   } else if (!el.pre) {
     // non root node in pre blocks with no attributes
@@ -9431,20 +9680,29 @@ function processRawAttrs (el) {
   }
 }
 
-function processElement (element, options) {
+function processElement (
+  element,
+  options
+) {
   processKey(element);
 
   // determine whether this is a plain element after
   // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
+  element.plain = (
+    !element.key &&
+    !element.scopedSlots &&
+    !element.attrsList.length
+  );
 
   processRef(element);
-  processSlot(element);
+  processSlotContent(element);
+  processSlotOutlet(element);
   processComponent(element);
   for (var i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element;
   }
   processAttrs(element);
+  return element
 }
 
 function processKey (el) {
@@ -9452,7 +9710,10 @@ function processKey (el) {
   if (exp) {
     if (process.env.NODE_ENV !== 'production') {
       if (el.tag === 'template') {
-        warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+        warn$2(
+          "<template> cannot be keyed. Place the key on real elements instead.",
+          getRawBindingAttr(el, 'key')
+        );
       }
       if (el.for) {
         var iterator = el.iterator2 || el.iterator1;
@@ -9460,7 +9721,9 @@ function processKey (el) {
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn$2(
             "Do not use v-for index as key on <transition-group> children, " +
-            "this is the same as not using keys."
+            "this is the same as not using keys.",
+            getRawBindingAttr(el, 'key'),
+            true /* tip */
           );
         }
       }
@@ -9485,7 +9748,8 @@ function processFor (el) {
       extend(el, res);
     } else if (process.env.NODE_ENV !== 'production') {
       warn$2(
-        ("Invalid v-for expression: " + exp)
+        ("Invalid v-for expression: " + exp),
+        el.rawAttrsMap['v-for']
       );
     }
   }
@@ -9541,7 +9805,8 @@ function processIfConditions (el, parent) {
   } else if (process.env.NODE_ENV !== 'production') {
     warn$2(
       "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
+      "used on element <" + (el.tag) + "> without corresponding v-if.",
+      el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
     );
   }
 }
@@ -9555,7 +9820,8 @@ function findPrevElement (children) {
       if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
         warn$2(
           "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
+          "will be ignored.",
+          children[i]
         );
       }
       children.pop();
@@ -9577,52 +9843,122 @@ function processOnce (el) {
   }
 }
 
-function processSlot (el) {
+// handle content being passed to a component as slot,
+// e.g. <template slot="xxx">, <div slot-scope="xxx">
+function processSlotContent (el) {
+  var slotScope;
+  if (el.tag === 'template') {
+    slotScope = getAndRemoveAttr(el, 'scope');
+    /* istanbul ignore if */
+    if (process.env.NODE_ENV !== 'production' && slotScope) {
+      warn$2(
+        "the \"scope\" attribute for scoped slots have been deprecated and " +
+        "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+        "can also be used on plain elements in addition to <template> to " +
+        "denote scoped slots.",
+        el.rawAttrsMap['scope'],
+        true
+      );
+    }
+    el.slotScope = (
+      slotScope ||
+      getAndRemoveAttr(el, 'slot-scope')
+    );
+    if (process.env.NEW_SLOT_SYNTAX) {
+      // new in 2.6: slot-props and its shorthand works the same as slot-scope
+      // when used on <template> containers
+      el.slotScope = el.slotScope || getAndRemoveAttr(el, 'slot-props');
+      // 2.6 shorthand syntax
+      var shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
+      if (shorthand) {
+        if (process.env.NODE_ENV !== 'production' && el.slotScope) {
+          warn$2(
+            "Unexpected mixed usage of different slot syntaxes.",
+            el
+          );
+        }
+        el.slotTarget = getScopedSlotShorthandName(shorthand);
+        el.slotScope = shorthand.value;
+      }
+    }
+  } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+    /* istanbul ignore if */
+    if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+      warn$2(
+        "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+        "(v-for takes higher priority). Use a wrapper <template> for the " +
+        "scoped slot to make it clearer.",
+        el.rawAttrsMap['slot-scope'],
+        true
+      );
+    }
+    el.slotScope = slotScope;
+  } else if (process.env.NEW_SLOT_SYNTAX) {
+    // 2.6: slot-props on component, denotes default slot
+    slotScope = getAndRemoveAttr(el, 'slot-props');
+    var shorthand$1 = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
+    if (slotScope || shorthand$1) {
+      if (process.env.NODE_ENV !== 'production') {
+        if (!maybeComponent(el)) {
+          warn$2(
+            "slot-props cannot be used on non-component elements.",
+            el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
+          );
+        }
+        if (slotScope && shorthand$1) {
+          warn$2(
+            "Unexpected mixed usage of different slot syntaxes.",
+            el
+          );
+        }
+      }
+      // add the component's children to its default slot
+      var slots = el.scopedSlots || (el.scopedSlots = {});
+      var target = shorthand$1 ? getScopedSlotShorthandName(shorthand$1) : "\"default\"";
+      var slotContainer = slots[target] = createASTElement('template', [], el);
+      slotContainer.children = el.children;
+      slotContainer.slotScope = shorthand$1 ? shorthand$1.value : slotScope;
+      // remove children as they are returned from scopedSlots now
+      el.children = [];
+      // mark el non-plain so data gets generated
+      el.plain = false;
+    }
+  }
+
+  // slot="xxx"
+  var slotTarget = getBindingAttr(el, 'slot');
+  if (slotTarget) {
+    el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    // preserve slot as an attribute for native shadow DOM compat
+    // only for non-scoped slots.
+    if (el.tag !== 'template' && !el.slotScope) {
+      addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+    }
+  }
+}
+
+function getScopedSlotShorthandName (ref) {
+  var name = ref.name;
+
+  return name.charAt(0) === ':'
+    // dynamic :(name)
+    ? name.slice(2, -1) || "\"default\""
+    // static (name)
+    : ("\"" + (name.slice(1, -1) || "default") + "\"")
+}
+
+// handle <slot/> outlets
+function processSlotOutlet (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name');
     if (process.env.NODE_ENV !== 'production' && el.key) {
       warn$2(
         "`key` does not work on <slot> because slots are abstract outlets " +
         "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
+        "Use the key on a wrapping element instead.",
+        getRawBindingAttr(el, 'key')
       );
     }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && slotScope) {
-        warn$2(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
-        warn$2(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
-      }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
-    }
   }
 }
 
@@ -9638,7 +9974,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
+  var i, l, name, rawName, value, modifiers, isProp, syncGen;
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name;
     value = list[i].value;
@@ -9646,8 +9982,12 @@ function processAttrs (el) {
       // mark element as dynamic
       el.hasBindings = true;
       // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
+      modifiers = parseModifiers(name.replace(dirRE, ''));
+      // support .foo shorthand syntax for the .prop modifier
+      if (propBindRE.test(name)) {
+        (modifiers || (modifiers = {})).prop = true;
+        name = "." + name.slice(1).replace(modifierRE, '');
+      } else if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -9672,23 +10012,39 @@ function processAttrs (el) {
             name = camelize(name);
           }
           if (modifiers.sync) {
+            syncGen = genAssignmentCode(value, "$event");
             addHandler(
               el,
               ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
+              syncGen,
+              null,
+              false,
+              warn$2,
+              list[i]
             );
+            if (hyphenate(name) !== camelize(name)) {
+              addHandler(
+                el,
+                ("update:" + (hyphenate(name))),
+                syncGen,
+                null,
+                false,
+                warn$2,
+                list[i]
+              );
+            }
           }
         }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value);
+          addProp(el, name, value, list[i]);
         } else {
-          addAttr(el, name, value);
+          addAttr(el, name, value, list[i]);
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2);
+        addHandler(el, name, value, modifiers, false, warn$2, list[i]);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
@@ -9697,7 +10053,7 @@ function processAttrs (el) {
         if (arg) {
           name = name.slice(0, -(arg.length + 1));
         }
-        addDirective(el, name, rawName, value, arg, modifiers);
+        addDirective(el, name, rawName, value, arg, modifiers, list[i]);
         if (process.env.NODE_ENV !== 'production' && name === 'model') {
           checkForAliasModel(el, value);
         }
@@ -9711,17 +10067,18 @@ function processAttrs (el) {
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
+            'instead of <div id="{{ val }}">, use <div :id="val">.',
+            list[i]
           );
         }
       }
-      addAttr(el, name, JSON.stringify(value));
+      addAttr(el, name, JSON.stringify(value), list[i]);
       // #6887 firefox doesn't update muted state if set via attribute
       // even immediately after element creation
       if (!el.component &&
           name === 'muted' &&
           platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
+        addProp(el, name, 'true', list[i]);
       }
     }
   }
@@ -9754,7 +10111,7 @@ function makeAttrsMap (attrs) {
       process.env.NODE_ENV !== 'production' &&
       map[attrs[i].name] && !isIE && !isEdge
     ) {
-      warn$2('duplicate attribute: ' + attrs[i].name);
+      warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
     }
     map[attrs[i].name] = attrs[i].value;
   }
@@ -9801,7 +10158,8 @@ function checkForAliasModel (el, value) {
         "You are binding v-model directly to a v-for iteration alias. " +
         "This will not be able to modify the v-for source array because " +
         "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
+        "Consider using an array of objects and use v-model on an object property instead.",
+        el.rawAttrsMap['v-model']
       );
     }
     _el = _el.parent;
@@ -9890,7 +10248,7 @@ var modules$1 = [
 
 function text (el, dir) {
   if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
   }
 }
 
@@ -9898,7 +10256,7 @@ function text (el, dir) {
 
 function html (el, dir) {
   if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
   }
 }
 
@@ -9953,7 +10311,7 @@ function optimize (root, options) {
 
 function genStaticKeys$1 (keys) {
   return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
     (keys ? ',' + keys : '')
   )
 }
@@ -10053,6 +10411,7 @@ function isDirectChildOfTemplateFor (node) {
 /*  */
 
 var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
 // KeyboardEvent.keyCode aliases
@@ -10128,12 +10487,13 @@ function genHandler (
 
   var isMethodPath = simplePathRE.test(handler.value);
   var isFunctionExpression = fnExpRE.test(handler.value);
+  var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
 
   if (!handler.modifiers) {
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    return ("function($event){" + (handler.value) + "}") // inline statement
+    return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -10168,7 +10528,9 @@ function genHandler (
       ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
+        : isFunctionInvocation
+          ? ("return " + (handler.value))
+          : handler.value;
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -10232,7 +10594,7 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+  this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
   this.onceId = 0;
   this.staticRenderFns = [];
   this.pre = false;
@@ -10323,7 +10685,8 @@ function genOnce (el, state) {
     }
     if (!key) {
       process.env.NODE_ENV !== 'production' && state.warn(
-        "v-once can only be used inside v-for that is keyed. "
+        "v-once can only be used inside v-for that is keyed. ",
+        el.rawAttrsMap['v-once']
       );
       return genElement(el, state)
     }
@@ -10391,6 +10754,7 @@ function genFor (
       "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
       "v-for should have explicit keys. " +
       "See https://vuejs.org/guide/list.html#key for more info.",
+      el.rawAttrsMap['v-for'],
       true /* tip */
     );
   }
@@ -10510,7 +10874,10 @@ function genInlineTemplate (el, state) {
   if (process.env.NODE_ENV !== 'production' && (
     el.children.length !== 1 || ast.type !== 1
   )) {
-    state.warn('Inline-template components must have exactly one child element.');
+    state.warn(
+      'Inline-template components must have exactly one child element.',
+      { start: el.start }
+    );
   }
   if (ast.type === 1) {
     var inlineRenderFns = generate(ast, state.options);
@@ -10689,6 +11056,8 @@ function transformSpecialNewlines (text) {
 
 /*  */
 
+
+
 // these keywords should not appear inside expressions, but operators like
 // typeof, instanceof and in are allowed
 var prohibitedKeywordRE = new RegExp('\\b' + (
@@ -10706,89 +11075,92 @@ var unaryOperatorsRE = new RegExp('\\b' + (
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
 // detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
+function detectErrors (ast, warn) {
   if (ast) {
-    checkNode(ast, errors);
+    checkNode(ast, warn);
   }
-  return errors
 }
 
-function checkNode (node, errors) {
+function checkNode (node, warn) {
   if (node.type === 1) {
     for (var name in node.attrsMap) {
       if (dirRE.test(name)) {
         var value = node.attrsMap[name];
         if (value) {
+          var range = node.rawAttrsMap[name];
           if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
+            checkFor(node, ("v-for=\"" + value + "\""), warn, range);
           } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
+            checkEvent(value, (name + "=\"" + value + "\""), warn, range);
           } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
+            checkExpression(value, (name + "=\"" + value + "\""), warn, range);
           }
         }
       }
     }
     if (node.children) {
       for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
+        checkNode(node.children[i], warn);
       }
     }
   } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
+    checkExpression(node.expression, node.text, warn, node);
   }
 }
 
-function checkEvent (exp, text, errors) {
+function checkEvent (exp, text, warn, range) {
   var stipped = exp.replace(stripStringRE, '');
   var keywordMatch = stipped.match(unaryOperatorsRE);
   if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
+    warn(
       "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
+      range
     );
   }
-  checkExpression(exp, text, errors);
+  checkExpression(exp, text, warn, range);
 }
 
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+function checkFor (node, text, warn, range) {
+  checkExpression(node.for || '', text, warn, range);
+  checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
 }
 
 function checkIdentifier (
   ident,
   type,
   text,
-  errors
+  warn,
+  range
 ) {
   if (typeof ident === 'string') {
     try {
       new Function(("var " + ident + "=_"));
     } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+      warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
     }
   }
 }
 
-function checkExpression (exp, text, errors) {
+function checkExpression (exp, text, warn, range) {
   try {
     new Function(("return " + exp));
   } catch (e) {
     var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
     if (keywordMatch) {
-      errors.push(
+      warn(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
+        range
       );
     } else {
-      errors.push(
+      warn(
         "invalid expression: " + (e.message) + " in\n\n" +
         "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
+        "  Raw expression: " + (text.trim()) + "\n",
+        range
       );
     }
   }
@@ -10796,6 +11168,58 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+var range = 2;
+
+function generateCodeFrame (
+  source,
+  start,
+  end
+) {
+  if ( start === void 0 ) start = 0;
+  if ( end === void 0 ) end = source.length;
+
+  var lines = source.split(/\r?\n/);
+  var count = 0;
+  var res = [];
+  for (var i = 0; i < lines.length; i++) {
+    count += lines[i].length + 1;
+    if (count >= start) {
+      for (var j = i - range; j <= i + range || end > count; j++) {
+        if (j < 0 || j >= lines.length) { continue }
+        res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
+        var lineLength = lines[j].length;
+        if (j === i) {
+          // push underline
+          var pad = start - (count - lineLength) + 1;
+          var length = end > count ? lineLength - pad : end - start;
+          res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
+        } else if (j > i) {
+          if (end > count) {
+            var length$1 = Math.min(end - count, lineLength);
+            res.push("   |  " + repeat$1("^", length$1));
+          }
+          count += lineLength + 1;
+        }
+      }
+      break
+    }
+  }
+  return res.join('\n')
+}
+
+function repeat$1 (str, n) {
+  var result = '';
+  while (true) { // eslint-disable-line
+    if (n & 1) { result += str; }
+    n >>>= 1;
+    if (n <= 0) { break }
+    str += str;
+  }
+  return result
+}
+
+/*  */
+
 
 
 function createFunction (code, errors) {
@@ -10851,14 +11275,28 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
-        );
+        if (options.outputSourceRange) {
+          compiled.errors.forEach(function (e) {
+            warn$$1(
+              "Error compiling template:\n\n" + (e.msg) + "\n\n" +
+              generateCodeFrame(template, e.start, e.end),
+              vm
+            );
+          });
+        } else {
+          warn$$1(
+            "Error compiling template:\n\n" + template + "\n\n" +
+            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+            vm
+          );
+        }
       }
       if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+        if (options.outputSourceRange) {
+          compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
+        } else {
+          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+        }
       }
     }
 
@@ -10904,11 +11342,29 @@ function createCompilerCreator (baseCompile) {
       var finalOptions = Object.create(baseOptions);
       var errors = [];
       var tips = [];
-      finalOptions.warn = function (msg, tip) {
+
+      var warn = function (msg, range, tip) {
         (tip ? tips : errors).push(msg);
       };
 
       if (options) {
+        if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+          // $flow-disable-line
+          var leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+          warn = function (msg, range, tip) {
+            var data = { msg: msg };
+            if (range) {
+              if (range.start != null) {
+                data.start = range.start + leadingSpaceLength;
+              }
+              if (range.end != null) {
+                data.end = range.end + leadingSpaceLength;
+              }
+            }
+            (tip ? tips : errors).push(data);
+          };
+        }
         // merge custom modules
         if (options.modules) {
           finalOptions.modules =
@@ -10929,9 +11385,11 @@ function createCompilerCreator (baseCompile) {
         }
       }
 
-      var compiled = baseCompile(template, finalOptions);
+      finalOptions.warn = warn;
+
+      var compiled = baseCompile(template.trim(), finalOptions);
       if (process.env.NODE_ENV !== 'production') {
-        errors.push.apply(errors, detectErrors(compiled.ast));
+        detectErrors(compiled.ast, warn);
       }
       compiled.errors = errors;
       compiled.tips = tips;
@@ -11043,6 +11501,7 @@ Vue.prototype.$mount = function (
       }
 
       var ref = compileToFunctions(template, {
+        outputSourceRange: process.env.NODE_ENV !== 'production',
         shouldDecodeNewlines: shouldDecodeNewlines,
         shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
         delimiters: options.delimiters,
diff --git a/dist/vue.js b/dist/vue.js
index 7ae4d303aef..538fa92f030 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,13 +1,13 @@
 /*!
- * Vue.js v2.5.22
+ * Vue.js v2.6.0-beta.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
   typeof define === 'function' && define.amd ? define(factory) :
-  (global.Vue = factory());
-}(this, (function () { 'use strict';
+  (global = global || self, global.Vue = factory());
+}(this, function () { 'use strict';
 
   /*  */
 
@@ -82,13 +82,21 @@
     return n >= 0 && Math.floor(n) === n && isFinite(val)
   }
 
+  function isPromise (val) {
+    return (
+      isDef(val) &&
+      typeof val.then === 'function' &&
+      typeof val.catch === 'function'
+    )
+  }
+
   /**
    * Convert a value to a string that is actually rendered.
    */
   function toString (val) {
     return val == null
       ? ''
-      : typeof val === 'object'
+      : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
         ? JSON.stringify(val, null, 2)
         : String(val)
   }
@@ -364,7 +372,8 @@
     'destroyed',
     'activated',
     'deactivated',
-    'errorCaptured'
+    'errorCaptured',
+    'ssrPrefetch'
   ];
 
   /*  */
@@ -467,6 +476,13 @@
 
   /*  */
 
+  /**
+   * unicode letters used for parsing html tags, component names and property paths.
+   * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+   * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+   */
+  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
   /**
    * Check if a string starts with $ or _
    */
@@ -490,7 +506,7 @@
   /**
    * Parse simple path.
    */
-  var bailRE = /[^\w.$]/;
+  var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
   function parsePath (path) {
     if (bailRE.test(path)) {
       return
@@ -521,6 +537,7 @@
   var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+  var isPhantomJS = UA && /phantomjs/.test(UA);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -1164,9 +1181,15 @@
   function mergeData (to, from) {
     if (!from) { return to }
     var key, toVal, fromVal;
-    var keys = Object.keys(from);
+
+    var keys = hasSymbol
+      ? Reflect.ownKeys(from)
+      : Object.keys(from);
+
     for (var i = 0; i < keys.length; i++) {
       key = keys[i];
+      // in case the object is already observed...
+      if (key === '__ob__') { continue }
       toVal = to[key];
       fromVal = from[key];
       if (!hasOwn(to, key)) {
@@ -1386,11 +1409,10 @@
   }
 
   function validateComponentName (name) {
-    if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
       warn(
         'Invalid component name: "' + name + '". Component names ' +
-        'can only contain alphanumeric characters and the hyphen, ' +
-        'and must start with a letter.'
+        'should conform to valid custom element name in html5 specification.'
       );
     }
     if (isBuiltInTag(name) || config.isReservedTag(name)) {
@@ -1473,9 +1495,9 @@
     var dirs = options.directives;
     if (dirs) {
       for (var key in dirs) {
-        var def = dirs[key];
-        if (typeof def === 'function') {
-          dirs[key] = { bind: def, update: def };
+        var def$$1 = dirs[key];
+        if (typeof def$$1 === 'function') {
+          dirs[key] = { bind: def$$1, update: def$$1 };
         }
       }
     }
@@ -1821,6 +1843,25 @@
     globalHandleError(err, vm, info);
   }
 
+  function invokeWithErrorHandling (
+    handler,
+    context,
+    args,
+    vm,
+    info
+  ) {
+    var res;
+    try {
+      res = args ? handler.apply(context, args) : handler.call(context);
+      if (isPromise(res)) {
+        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      }
+    } catch (e) {
+      handleError(e, vm, info);
+    }
+    return res
+  }
+
   function globalHandleError (err, vm, info) {
     if (config.errorHandler) {
       try {
@@ -1858,76 +1899,67 @@
     }
   }
 
-  // Here we have async deferring wrappers using both microtasks and (macro) tasks.
-  // In < 2.4 we used microtasks everywhere, but there are some scenarios where
-  // microtasks have too high a priority and fire in between supposedly
-  // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-  // event (#6566). However, using (macro) tasks everywhere also has subtle problems
-  // when state is changed right before repaint (e.g. #6813, out-in transitions).
-  // Here we use microtask by default, but expose a way to force (macro) task when
-  // needed (e.g. in event handlers attached by v-on).
-  var microTimerFunc;
-  var macroTimerFunc;
-  var useMacroTask = false;
-
-  // Determine (macro) task defer implementation.
-  // Technically setImmediate should be the ideal choice, but it's only available
-  // in IE. The only polyfill that consistently queues the callback after all DOM
-  // events triggered in the same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    macroTimerFunc = function () {
-      setImmediate(flushCallbacks);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = flushCallbacks;
-    macroTimerFunc = function () {
-      port.postMessage(1);
-    };
-  } else {
-    /* istanbul ignore next */
-    macroTimerFunc = function () {
-      setTimeout(flushCallbacks, 0);
-    };
-  }
-
-  // Determine microtask defer implementation.
+  // Here we have async deferring wrappers using microtasks.
+  // In 2.5 we used (macro) tasks (in combination with microtasks).
+  // However, it has subtle problems when state is changed right before repaint
+  // (e.g. #6813, out-in transitions).
+  // Also, using (macro) tasks in event handler would cause some weird behaviors
+  // that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+  // So we now use microtasks everywhere, again.
+  // A major drawback of this tradeoff is that there are some scenarios
+  // where microtasks have too high a priority and fire in between supposedly
+  // sequential events (e.g. #4521, #6690, which have workarounds)
+  // or even between bubbling of the same event (#6566).
+  var timerFunc;
+
+  // The nextTick behavior leverages the microtask queue, which can be accessed
+  // via either native Promise.then or MutationObserver.
+  // MutationObserver has wider support, however it is seriously bugged in
+  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+  // completely stops working after triggering a few times... so, if native
+  // Promise is available, we will use it:
   /* istanbul ignore next, $flow-disable-line */
   if (typeof Promise !== 'undefined' && isNative(Promise)) {
     var p = Promise.resolve();
-    microTimerFunc = function () {
+    timerFunc = function () {
       p.then(flushCallbacks);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
+      // In problematic UIWebViews, Promise.then doesn't completely break, but
       // it can get stuck in a weird state where callbacks are pushed into the
       // microtask queue but the queue isn't being flushed, until the browser
       // needs to do some other work, e.g. handle a timer. Therefore we can
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
+    isNative(MutationObserver) ||
+    // PhantomJS and iOS 7.x
+    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  )) {
+    // Use MutationObserver where native Promise is not available,
+    // e.g. PhantomJS, iOS7, Android 4.4
+    // (#6466 MutationObserver is unreliable in IE11)
+    var counter = 1;
+    var observer = new MutationObserver(flushCallbacks);
+    var textNode = document.createTextNode(String(counter));
+    observer.observe(textNode, {
+      characterData: true
+    });
+    timerFunc = function () {
+      counter = (counter + 1) % 2;
+      textNode.data = String(counter);
+    };
+  } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+    // Fallback to setImmediate.
+    // Techinically it leverages the (macro) task queue,
+    // but it is still a better choice than setTimeout.
+    timerFunc = function () {
+      setImmediate(flushCallbacks);
+    };
   } else {
-    // fallback to macro
-    microTimerFunc = macroTimerFunc;
-  }
-
-  /**
-   * Wrap a function so that if any code inside triggers state change,
-   * the changes are queued using a (macro) task instead of a microtask.
-   */
-  function withMacroTask (fn) {
-    return fn._withTask || (fn._withTask = function () {
-      useMacroTask = true;
-      try {
-        return fn.apply(null, arguments)
-      } finally {
-        useMacroTask = false;    
-      }
-    })
+    // Fallback to setTimeout.
+    timerFunc = function () {
+      setTimeout(flushCallbacks, 0);
+    };
   }
 
   function nextTick (cb, ctx) {
@@ -1945,11 +1977,7 @@
     });
     if (!pending) {
       pending = true;
-      if (useMacroTask) {
-        macroTimerFunc();
-      } else {
-        microTimerFunc();
-      }
+      timerFunc();
     }
     // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
@@ -1979,7 +2007,7 @@
         perf.measure(name, startTag, endTag);
         perf.clearMarks(startTag);
         perf.clearMarks(endTag);
-        perf.clearMeasures(name);
+        // perf.clearMeasures(name)
       };
     }
   }
@@ -2126,7 +2154,7 @@
     }
   });
 
-  function createFnInvoker (fns) {
+  function createFnInvoker (fns, vm) {
     function invoker () {
       var arguments$1 = arguments;
 
@@ -2134,11 +2162,11 @@
       if (Array.isArray(fns)) {
         var cloned = fns.slice();
         for (var i = 0; i < cloned.length; i++) {
-          cloned[i].apply(null, arguments$1);
+          invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
         }
       } else {
         // return handler return value for single handlers
-        return fns.apply(null, arguments)
+        return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
       }
     }
     invoker.fns = fns;
@@ -2165,7 +2193,7 @@
         );
       } else if (isUndef(old)) {
         if (isUndef(cur.fns)) {
-          cur = on[name] = createFnInvoker(cur);
+          cur = on[name] = createFnInvoker(cur, vm);
         }
         if (isTrue(event.once)) {
           cur = on[name] = createOnceHandler(event.name, cur, event.capture);
@@ -2461,12 +2489,12 @@
       var res = factory(resolve, reject);
 
       if (isObject(res)) {
-        if (typeof res.then === 'function') {
+        if (isPromise(res)) {
           // () => Promise
           if (isUndef(factory.resolved)) {
             res.then(resolve, reject);
           }
-        } else if (isDef(res.component) && typeof res.component.then === 'function') {
+        } else if (isPromise(res.component)) {
           res.component.then(resolve, reject);
 
           if (isDef(res.error)) {
@@ -2654,12 +2682,9 @@
       if (cbs) {
         cbs = cbs.length > 1 ? toArray(cbs) : cbs;
         var args = toArray(arguments, 1);
+        var info = "event handler for \"" + event + "\"";
         for (var i = 0, l = cbs.length; i < l; i++) {
-          try {
-            cbs[i].apply(vm, args);
-          } catch (e) {
-            handleError(e, vm, ("event handler for \"" + event + "\""));
-          }
+          invokeWithErrorHandling(cbs[i], vm, args, vm, info);
         }
       }
       return vm
@@ -2677,10 +2702,10 @@
     children,
     context
   ) {
-    var slots = {};
-    if (!children) {
-      return slots
+    if (!children || !children.length) {
+      return {}
     }
+    var slots = {};
     for (var i = 0, l = children.length; i < l; i++) {
       var child = children[i];
       var data = child.data;
@@ -2723,10 +2748,11 @@
   ) {
     res = res || {};
     for (var i = 0; i < fns.length; i++) {
-      if (Array.isArray(fns[i])) {
-        resolveScopedSlots(fns[i], res);
+      var slot = fns[i];
+      if (Array.isArray(slot)) {
+        resolveScopedSlots(slot, res);
       } else {
-        res[fns[i].key] = fns[i].fn;
+        res[slot.key] = slot.fn;
       }
     }
     return res
@@ -3039,13 +3065,10 @@
     // #7573 disable dep collection when invoking lifecycle hooks
     pushTarget();
     var handlers = vm.$options[hook];
+    var info = hook + " hook";
     if (handlers) {
       for (var i = 0, j = handlers.length; i < j; i++) {
-        try {
-          handlers[i].call(vm);
-        } catch (e) {
-          handleError(e, vm, (hook + " hook"));
-        }
+        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
       }
     }
     if (vm._hasHookEvent) {
@@ -3786,14 +3809,13 @@
       // inject is :any because flow is not smart enough to figure out cached
       var result = Object.create(null);
       var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
+        ? Reflect.ownKeys(inject)
         : Object.keys(inject);
 
       for (var i = 0; i < keys.length; i++) {
         var key = keys[i];
+        // #6574 in case the inject object is observed...
+        if (key === '__ob__') { continue }
         var provideKey = inject[key].from;
         var source = vm;
         while (source) {
@@ -3820,6 +3842,48 @@
 
   /*  */
 
+  function normalizeScopedSlots (
+    slots,
+    normalSlots
+  ) {
+    var res;
+    if (!slots) {
+      res = {};
+    } else if (slots._normalized) {
+      return slots
+    } else {
+      res = {};
+      for (var key in slots) {
+        if (slots[key]) {
+          res[key] = normalizeScopedSlot(slots[key]);
+        }
+      }
+    }
+    // expose normal slots on scopedSlots
+    for (var key$1 in normalSlots) {
+      if (!(key$1 in res)) {
+        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+      }
+    }
+    res._normalized = true;
+    return res
+  }
+
+  function normalizeScopedSlot(fn) {
+    return function (scope) {
+      var res = fn(scope);
+      return res && typeof res === 'object' && !Array.isArray(res)
+        ? [res] // single vnode
+        : normalizeChildren(res)
+    }
+  }
+
+  function proxyNormalSlot(slots, key) {
+    return function () { return slots[key]; }
+  }
+
+  /*  */
+
   /**
    * Runtime helper for rendering v-for lists.
    */
@@ -3839,11 +3903,21 @@
         ret[i] = render(i + 1, i);
       }
     } else if (isObject(val)) {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
+      if (hasSymbol && val[Symbol.iterator]) {
+        ret = [];
+        var iterator = val[Symbol.iterator]();
+        var result = iterator.next();
+        while (!result.done) {
+          ret.push(render(result.value, ret.length));
+          result = iterator.next();
+        }
+      } else {
+        keys = Object.keys(val);
+        ret = new Array(keys.length);
+        for (i = 0, l = keys.length; i < l; i++) {
+          key = keys[i];
+          ret[i] = render(val[key], key, i);
+        }
       }
     }
     if (!isDef(ret)) {
@@ -4124,13 +4198,20 @@
     this.injections = resolveInject(options.inject, parent);
     this.slots = function () { return resolveSlots(children, parent); };
 
+    Object.defineProperty(this, 'scopedSlots', ({
+      enumerable: true,
+      get: function get () {
+        return normalizeScopedSlots(data.scopedSlots, this.slots())
+      }
+    }));
+
     // support for compiled functional template
     if (isCompiled) {
       // exposing $options for renderStatic()
       this.$options = options;
       // pre-resolve slots for renderSlot()
       this.$slots = this.slots();
-      this.$scopedSlots = data.scopedSlots || emptyObject;
+      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
     }
 
     if (options._scopeId) {
@@ -4637,7 +4718,10 @@
       var _parentVnode = ref._parentVnode;
 
       if (_parentVnode) {
-        vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+        vm.$scopedSlots = normalizeScopedSlots(
+          _parentVnode.data.scopedSlots,
+          vm.$slots
+        );
       }
 
       // set parent vnode. this allows render functions to have access
@@ -4663,6 +4747,10 @@
           vnode = vm._vnode;
         }
       }
+      // if the returned array contains only a single node, allow it
+      if (Array.isArray(vnode) && vnode.length === 1) {
+        vnode = vnode[0];
+      }
       // return empty vnode in case the render function errored out
       if (!(vnode instanceof VNode)) {
         if (Array.isArray(vnode)) {
@@ -5129,6 +5217,12 @@
     Vue.delete = del;
     Vue.nextTick = nextTick;
 
+    // 2.6 explicit observable API
+    Vue.observable = function (obj) {
+      observe(obj);
+      return obj
+    };
+
     Vue.options = Object.create(null);
     ASSET_TYPES.forEach(function (type) {
       Vue.options[type + 's'] = Object.create(null);
@@ -5164,7 +5258,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.22';
+  Vue.version = '2.6.0-beta.1';
 
   /*  */
 
@@ -6631,9 +6725,13 @@
 
   /*  */
 
-  function baseWarn (msg) {
+
+
+  /* eslint-disable no-unused-vars */
+  function baseWarn (msg, range) {
     console.error(("[Vue compiler]: " + msg));
   }
+  /* eslint-enable no-unused-vars */
 
   function pluckModuleFunction (
     modules,
@@ -6644,20 +6742,20 @@
       : []
   }
 
-  function addProp (el, name, value) {
-    (el.props || (el.props = [])).push({ name: name, value: value });
+  function addProp (el, name, value, range) {
+    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
     el.plain = false;
   }
 
-  function addAttr (el, name, value) {
-    (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  function addAttr (el, name, value, range) {
+    (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
     el.plain = false;
   }
 
   // add a raw attr (use this in preTransforms)
-  function addRawAttr (el, name, value) {
+  function addRawAttr (el, name, value, range) {
     el.attrsMap[name] = value;
-    el.attrsList.push({ name: name, value: value });
+    el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
   }
 
   function addDirective (
@@ -6666,9 +6764,10 @@
     rawName,
     value,
     arg,
-    modifiers
+    modifiers,
+    range
   ) {
-    (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+    (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
     el.plain = false;
   }
 
@@ -6678,7 +6777,8 @@
     value,
     modifiers,
     important,
-    warn
+    warn,
+    range
   ) {
     modifiers = modifiers || emptyObject;
     // warn prevent and passive modifier
@@ -6689,7 +6789,8 @@
     ) {
       warn(
         'passive and prevent can\'t be used together. ' +
-        'Passive handler can\'t prevent default event.'
+        'Passive handler can\'t prevent default event.',
+        range
       );
     }
 
@@ -6728,9 +6829,7 @@
       events = el.events || (el.events = {});
     }
 
-    var newHandler = {
-      value: value.trim()
-    };
+    var newHandler = rangeSetItem({ value: value.trim() }, range);
     if (modifiers !== emptyObject) {
       newHandler.modifiers = modifiers;
     }
@@ -6748,6 +6847,15 @@
     el.plain = false;
   }
 
+  function getRawBindingAttr (
+    el,
+    name
+  ) {
+    return el.rawAttrsMap[':' + name] ||
+      el.rawAttrsMap['v-bind:' + name] ||
+      el.rawAttrsMap[name]
+  }
+
   function getBindingAttr (
     el,
     name,
@@ -6791,6 +6899,21 @@
     return val
   }
 
+  function rangeSetItem (
+    item,
+    range
+  ) {
+    if (range) {
+      if (range.start != null) {
+        item.start = range.start;
+      }
+      if (range.end != null) {
+        item.end = range.end;
+      }
+    }
+    return item
+  }
+
   /*  */
 
   /**
@@ -6965,7 +7088,8 @@
       if (tag === 'input' && type === 'file') {
         warn$1(
           "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-          "File inputs are read only. Use a v-on:change listener instead."
+          "File inputs are read only. Use a v-on:change listener instead.",
+          el.rawAttrsMap['v-model']
         );
       }
     }
@@ -6991,7 +7115,8 @@
         "<" + (el.tag) + " v-model=\"" + value + "\">: " +
         "v-model is not supported on this element type. " +
         'If you are working with contenteditable, it\'s recommended to ' +
-        'wrap a library dedicated for that purpose inside a custom component.'
+        'wrap a library dedicated for that purpose inside a custom component.',
+        el.rawAttrsMap['v-model']
       );
     }
 
@@ -7075,7 +7200,8 @@
         var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
         warn$1(
           binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-          'because the latter already expands to a value binding internally'
+          'because the latter already expands to a value binding internally',
+          el.rawAttrsMap[binding]
         );
       }
     }
@@ -7147,14 +7273,28 @@
   }
 
   function add$1 (
-    event,
+    name,
     handler,
     capture,
     passive
   ) {
-    handler = withMacroTask(handler);
+    if (isChrome) {
+      // async edge case #6566: inner click event triggers patch, event handler
+      // attached to outer element during patch, and triggered again. This only
+      // happens in Chrome as it fires microtask ticks between event propagation.
+      // the solution is simple: we save the timestamp when a handler is attached,
+      // and the handler would only fire if the event passed to it was fired
+      // AFTER it was attached.
+      var now = performance.now();
+      var original = handler;
+      handler = original._wrapper = function (e) {
+        if (e.timeStamp >= now) {
+          return original.apply(this, arguments)
+        }
+      };
+    }
     target$1.addEventListener(
-      event,
+      name,
       handler,
       supportsPassive
         ? { capture: capture, passive: passive }
@@ -7163,14 +7303,14 @@
   }
 
   function remove$2 (
-    event,
+    name,
     handler,
     capture,
     _target
   ) {
     (_target || target$1).removeEventListener(
-      event,
-      handler._withTask || handler,
+      name,
+      handler._wrapper || handler,
       capture
     );
   }
@@ -7194,6 +7334,8 @@
 
   /*  */
 
+  var svgContainer;
+
   function updateDOMProps (oldVnode, vnode) {
     if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
       return
@@ -7227,6 +7369,17 @@
         }
       }
 
+      // #4521: if a click event triggers update before the change event is
+      // dispatched on a checkbox/radio input, the input's checked state will
+      // be reset and fail to trigger another update.
+      // The root cause here is that browsers may fire microtasks in between click/change.
+      // In Chrome / Firefox, click event fires before change, thus having this problem.
+      // In Safari / Edge, the order is opposite.
+      // Note: in Edge, if you click too fast, only the click event would fire twice.
+      if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+        continue
+      }
+
       if (key === 'value') {
         // store value as _value as well since
         // non-string values will be stringified
@@ -7236,6 +7389,17 @@
         if (shouldUpdateValue(elm, strCur)) {
           elm.value = strCur;
         }
+      } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+        // IE doesn't support innerHTML for SVG elements
+        svgContainer = svgContainer || document.createElement('div');
+        svgContainer.innerHTML = "<svg>" + cur + "</svg>";
+        var svg = svgContainer.firstChild;
+        while (elm.firstChild) {
+          elm.removeChild(elm.firstChild);
+        }
+        while (svg.firstChild) {
+          elm.appendChild(svg.firstChild);
+        }
       } else {
         elm[key] = cur;
       }
@@ -7267,10 +7431,6 @@
     var value = elm.value;
     var modifiers = elm._vModifiers; // injected by v-model runtime
     if (isDef(modifiers)) {
-      if (modifiers.lazy) {
-        // inputs with lazy should only be updated when not in focus
-        return false
-      }
       if (modifiers.number) {
         return toNumber(value) !== toNumber(newVal)
       }
@@ -8636,9 +8796,7 @@
       if (config.devtools) {
         if (devtools) {
           devtools.emit('init', Vue);
-        } else if (
-          isChrome
-        ) {
+        } else {
           console[console.info ? 'info' : 'log'](
             'Download the Vue Devtools extension for a better development experience:\n' +
             'https://github.com/vuejs/vue-devtools'
@@ -8717,7 +8875,8 @@
           "class=\"" + staticClass + "\": " +
           'Interpolation inside attributes has been removed. ' +
           'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div class="{{ val }}">, use <div :class="val">.'
+          'instead of <div class="{{ val }}">, use <div :class="val">.',
+          el.rawAttrsMap['class']
         );
       }
     }
@@ -8761,7 +8920,8 @@
             "style=\"" + staticStyle + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div style="{{ val }}">, use <div :style="val">.'
+            'instead of <div style="{{ val }}">, use <div :style="val">.',
+            el.rawAttrsMap['style']
           );
         }
       }
@@ -8832,9 +8992,7 @@
 
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-  // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-  // but for Vue templates we can enforce a simple charset
-  var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
   var startTagClose = /^\s*(\/?)>/;
@@ -8887,7 +9045,7 @@
 
             if (commentEnd >= 0) {
               if (options.shouldKeepComment) {
-                options.comment(html.substring(4, commentEnd));
+                options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
               }
               advance(commentEnd + 3);
               continue
@@ -8947,16 +9105,18 @@
             rest = html.slice(textEnd);
           }
           text = html.substring(0, textEnd);
-          advance(textEnd);
         }
 
         if (textEnd < 0) {
           text = html;
-          html = '';
+        }
+
+        if (text) {
+          advance(text.length);
         }
 
         if (options.chars && text) {
-          options.chars(text);
+          options.chars(text, index - text.length, index);
         }
       } else {
         var endTagLength = 0;
@@ -8985,7 +9145,7 @@
       if (html === last) {
         options.chars && options.chars(html);
         if (!stack.length && options.warn) {
-          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
         }
         break
       }
@@ -9010,7 +9170,9 @@
         advance(start[0].length);
         var end, attr;
         while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+          attr.start = index;
           advance(attr[0].length);
+          attr.end = index;
           match.attrs.push(attr);
         }
         if (end) {
@@ -9049,10 +9211,14 @@
           name: args[1],
           value: decodeAttr(value, shouldDecodeNewlines)
         };
+        if (options.outputSourceRange) {
+          attrs[i].start = args.start + args[0].match(/^\s*/).length;
+          attrs[i].end = args.end;
+        }
       }
 
       if (!unary) {
-        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
         lastTag = tagName;
       }
 
@@ -9086,7 +9252,8 @@
             options.warn
           ) {
             options.warn(
-              ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+              ("tag <" + (stack[i].tag) + "> has no matching end tag."),
+              { start: stack[i].start }
             );
           }
           if (options.end) {
@@ -9115,15 +9282,19 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:/;
+  var dirRE = /^v-|^@|^:|^\./;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
 
   var argRE = /:(.*)$/;
-  var bindRE = /^:|^v-bind:/;
+  var bindRE = /^:|^\.|^v-bind:/;
+  var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
+  var lineBreakRE = /[\r\n]/;
+  var whitespaceRE$1 = /\s+/g;
+
   var decodeHTMLCached = cached(he.decode);
 
   // configurable state
@@ -9136,8 +9307,6 @@
   var platformMustUseProp;
   var platformGetTagNamespace;
 
-
-
   function createASTElement (
     tag,
     attrs,
@@ -9148,6 +9317,7 @@
       tag: tag,
       attrsList: attrs,
       attrsMap: makeAttrsMap(attrs),
+      rawAttrsMap: {},
       parent: parent,
       children: []
     }
@@ -9165,6 +9335,7 @@
     platformIsPreTag = options.isPreTag || no;
     platformMustUseProp = options.mustUseProp || no;
     platformGetTagNamespace = options.getTagNamespace || no;
+    var isReservedTag = options.isReservedTag || no;
 
     transforms = pluckModuleFunction(options.modules, 'transformNode');
     preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -9174,20 +9345,55 @@
 
     var stack = [];
     var preserveWhitespace = options.preserveWhitespace !== false;
+    var whitespaceOption = options.whitespace;
     var root;
     var currentParent;
     var inVPre = false;
     var inPre = false;
     var warned = false;
 
-    function warnOnce (msg) {
+    function warnOnce (msg, range) {
       if (!warned) {
         warned = true;
-        warn$2(msg);
+        warn$2(msg, range);
       }
     }
 
     function closeElement (element) {
+      if (!inVPre && !element.processed) {
+        element = processElement(element, options);
+      }
+      // tree management
+      if (!stack.length && element !== root) {
+        // allow root elements with v-if, v-else-if and v-else
+        if (root.if && (element.elseif || element.else)) {
+          {
+            checkRootConstraints(element);
+          }
+          addIfCondition(root, {
+            exp: element.elseif,
+            block: element
+          });
+        } else {
+          warnOnce(
+            "Component template should contain exactly one root element. " +
+            "If you are using v-if on multiple elements, " +
+            "use v-else-if to chain them instead.",
+            { start: element.start }
+          );
+        }
+      }
+      if (currentParent && !element.forbidden) {
+        if (element.elseif || element.else) {
+          processIfConditions(element, currentParent);
+        } else if (element.slotScope) { // scoped slot
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        } else {
+          currentParent.children.push(element);
+          element.parent = currentParent;
+        }
+      }
       // check pre state
       if (element.pre) {
         inVPre = false;
@@ -9201,6 +9407,23 @@
       }
     }
 
+    function checkRootConstraints (el) {
+      if (el.tag === 'slot' || el.tag === 'template') {
+        warnOnce(
+          "Cannot use <" + (el.tag) + "> as component root element because it may " +
+          'contain multiple nodes.',
+          { start: el.start }
+        );
+      }
+      if (el.attrsMap.hasOwnProperty('v-for')) {
+        warnOnce(
+          'Cannot use v-for on stateful component root element because ' +
+          'it renders multiple elements.',
+          el.rawAttrsMap['v-for']
+        );
+      }
+    }
+
     parseHTML(template, {
       warn: warn$2,
       expectHTML: options.expectHTML,
@@ -9209,7 +9432,8 @@
       shouldDecodeNewlines: options.shouldDecodeNewlines,
       shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
       shouldKeepComment: options.comments,
-      start: function start (tag, attrs, unary) {
+      outputSourceRange: options.outputSourceRange,
+      start: function start (tag, attrs, unary, start$1) {
         // check namespace.
         // inherit parent ns if there is one
         var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -9225,12 +9449,21 @@
           element.ns = ns;
         }
 
+        if (options.outputSourceRange) {
+          element.start = start$1;
+          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+
         if (isForbiddenTag(element) && !isServerRendering()) {
           element.forbidden = true;
           warn$2(
             'Templates should only be responsible for mapping the state to the ' +
             'UI. Avoid placing tags with side-effects in your templates, such as ' +
-            "<" + tag + ">" + ', as they will not be parsed.'
+            "<" + tag + ">" + ', as they will not be parsed.',
+            { start: element.start }
           );
         }
 
@@ -9255,59 +9488,15 @@
           processFor(element);
           processIf(element);
           processOnce(element);
-          // element-scope stuff
-          processElement(element, options);
-        }
-
-        function checkRootConstraints (el) {
-          {
-            if (el.tag === 'slot' || el.tag === 'template') {
-              warnOnce(
-                "Cannot use <" + (el.tag) + "> as component root element because it may " +
-                'contain multiple nodes.'
-              );
-            }
-            if (el.attrsMap.hasOwnProperty('v-for')) {
-              warnOnce(
-                'Cannot use v-for on stateful component root element because ' +
-                'it renders multiple elements.'
-              );
-            }
-          }
         }
 
-        // tree management
         if (!root) {
           root = element;
-          checkRootConstraints(root);
-        } else if (!stack.length) {
-          // allow root elements with v-if, v-else-if and v-else
-          if (root.if && (element.elseif || element.else)) {
-            checkRootConstraints(element);
-            addIfCondition(root, {
-              exp: element.elseif,
-              block: element
-            });
-          } else {
-            warnOnce(
-              "Component template should contain exactly one root element. " +
-              "If you are using v-if on multiple elements, " +
-              "use v-else-if to chain them instead."
-            );
-          }
-        }
-        if (currentParent && !element.forbidden) {
-          if (element.elseif || element.else) {
-            processIfConditions(element, currentParent);
-          } else if (element.slotScope) { // scoped slot
-            currentParent.plain = false;
-            var name = element.slotTarget || '"default"'
-            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-          } else {
-            currentParent.children.push(element);
-            element.parent = currentParent;
+          {
+            checkRootConstraints(root);
           }
         }
+
         if (!unary) {
           currentParent = element;
           stack.push(element);
@@ -9316,29 +9505,36 @@
         }
       },
 
-      end: function end () {
-        // remove trailing whitespace
+      end: function end (tag, start, end$1) {
         var element = stack[stack.length - 1];
-        var lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-          element.children.pop();
+        if (!inPre) {
+          // remove trailing whitespace node
+          var lastNode = element.children[element.children.length - 1];
+          if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+            element.children.pop();
+          }
         }
         // pop stack
         stack.length -= 1;
         currentParent = stack[stack.length - 1];
+        if (options.outputSourceRange) {
+          element.end = end$1;
+        }
         closeElement(element);
       },
 
-      chars: function chars (text) {
+      chars: function chars (text, start, end) {
         if (!currentParent) {
           {
             if (text === template) {
               warnOnce(
-                'Component template requires a root element, rather than just text.'
+                'Component template requires a root element, rather than just text.',
+                { start: start }
               );
             } else if ((text = text.trim())) {
               warnOnce(
-                ("text \"" + text + "\" outside root element will be ignored.")
+                ("text \"" + text + "\" outside root element will be ignored."),
+                { start: start }
               );
             }
           }
@@ -9353,33 +9549,62 @@
           return
         }
         var children = currentParent.children;
-        text = inPre || text.trim()
-          ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-          // only preserve whitespace if its not right after a starting tag
-          : preserveWhitespace && children.length ? ' ' : '';
+        if (inPre || text.trim()) {
+          text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+        } else if (!children.length) {
+          // remove the whitespace-only node right after an opening tag
+          text = '';
+        } else if (whitespaceOption) {
+          if (whitespaceOption === 'condense') {
+            // in condense mode, remove the whitespace node if it contains
+            // line break, otherwise condense to a single space
+            text = lineBreakRE.test(text) ? '' : ' ';
+          } else {
+            text = ' ';
+          }
+        } else {
+          text = preserveWhitespace ? ' ' : '';
+        }
         if (text) {
+          if (whitespaceOption === 'condense') {
+            // condense consecutive whitespaces into single space
+            text = text.replace(whitespaceRE$1, ' ');
+          }
           var res;
+          var child;
           if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-            children.push({
+            child = {
               type: 2,
               expression: res.expression,
               tokens: res.tokens,
               text: text
-            });
+            };
           } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-            children.push({
+            child = {
               type: 3,
               text: text
-            });
+            };
+          }
+          if (child) {
+            if (options.outputSourceRange) {
+              child.start = start;
+              child.end = end;
+            }
+            children.push(child);
           }
         }
       },
-      comment: function comment (text) {
-        currentParent.children.push({
+      comment: function comment (text, start, end) {
+        var child = {
           type: 3,
           text: text,
           isComment: true
-        });
+        };
+        if (options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
     });
     return root
@@ -9392,14 +9617,19 @@
   }
 
   function processRawAttrs (el) {
-    var l = el.attrsList.length;
-    if (l) {
-      var attrs = el.attrs = new Array(l);
-      for (var i = 0; i < l; i++) {
+    var list = el.attrsList;
+    var len = list.length;
+    if (len) {
+      var attrs = el.attrs = new Array(len);
+      for (var i = 0; i < len; i++) {
         attrs[i] = {
-          name: el.attrsList[i].name,
-          value: JSON.stringify(el.attrsList[i].value)
+          name: list[i].name,
+          value: JSON.stringify(list[i].value)
         };
+        if (list[i].start != null) {
+          attrs[i].start = list[i].start;
+          attrs[i].end = list[i].end;
+        }
       }
     } else if (!el.pre) {
       // non root node in pre blocks with no attributes
@@ -9407,20 +9637,29 @@
     }
   }
 
-  function processElement (element, options) {
+  function processElement (
+    element,
+    options
+  ) {
     processKey(element);
 
     // determine whether this is a plain element after
     // removing structural attributes
-    element.plain = !element.key && !element.attrsList.length;
+    element.plain = (
+      !element.key &&
+      !element.scopedSlots &&
+      !element.attrsList.length
+    );
 
     processRef(element);
-    processSlot(element);
+    processSlotContent(element);
+    processSlotOutlet(element);
     processComponent(element);
     for (var i = 0; i < transforms.length; i++) {
       element = transforms[i](element, options) || element;
     }
     processAttrs(element);
+    return element
   }
 
   function processKey (el) {
@@ -9428,7 +9667,10 @@
     if (exp) {
       {
         if (el.tag === 'template') {
-          warn$2("<template> cannot be keyed. Place the key on real elements instead.");
+          warn$2(
+            "<template> cannot be keyed. Place the key on real elements instead.",
+            getRawBindingAttr(el, 'key')
+          );
         }
         if (el.for) {
           var iterator = el.iterator2 || el.iterator1;
@@ -9436,7 +9678,9 @@
           if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
             warn$2(
               "Do not use v-for index as key on <transition-group> children, " +
-              "this is the same as not using keys."
+              "this is the same as not using keys.",
+              getRawBindingAttr(el, 'key'),
+              true /* tip */
             );
           }
         }
@@ -9461,7 +9705,8 @@
         extend(el, res);
       } else {
         warn$2(
-          ("Invalid v-for expression: " + exp)
+          ("Invalid v-for expression: " + exp),
+          el.rawAttrsMap['v-for']
         );
       }
     }
@@ -9517,7 +9762,8 @@
     } else {
       warn$2(
         "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-        "used on element <" + (el.tag) + "> without corresponding v-if."
+        "used on element <" + (el.tag) + "> without corresponding v-if.",
+        el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
       );
     }
   }
@@ -9531,7 +9777,8 @@
         if (children[i].text !== ' ') {
           warn$2(
             "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-            "will be ignored."
+            "will be ignored.",
+            children[i]
           );
         }
         children.pop();
@@ -9553,52 +9800,65 @@
     }
   }
 
-  function processSlot (el) {
+  // handle content being passed to a component as slot,
+  // e.g. <template slot="xxx">, <div slot-scope="xxx">
+  function processSlotContent (el) {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (slotScope) {
+        warn$2(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          el.rawAttrsMap['scope'],
+          true
+        );
+      }
+      el.slotScope = (
+        slotScope ||
+        getAndRemoveAttr(el, 'slot-scope')
+      );
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (el.attrsMap['v-for']) {
+        warn$2(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          el.rawAttrsMap['slot-scope'],
+          true
+        );
+      }
+      el.slotScope = slotScope;
+    }
+
+    // slot="xxx"
+    var slotTarget = getBindingAttr(el, 'slot');
+    if (slotTarget) {
+      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      // only for non-scoped slots.
+      if (el.tag !== 'template' && !el.slotScope) {
+        addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+      }
+    }
+  }
+
+  // handle <slot/> outlets
+  function processSlotOutlet (el) {
     if (el.tag === 'slot') {
       el.slotName = getBindingAttr(el, 'name');
       if (el.key) {
         warn$2(
           "`key` does not work on <slot> because slots are abstract outlets " +
           "and can possibly expand into multiple elements. " +
-          "Use the key on a wrapping element instead."
+          "Use the key on a wrapping element instead.",
+          getRawBindingAttr(el, 'key')
         );
       }
-    } else {
-      var slotScope;
-      if (el.tag === 'template') {
-        slotScope = getAndRemoveAttr(el, 'scope');
-        /* istanbul ignore if */
-        if (slotScope) {
-          warn$2(
-            "the \"scope\" attribute for scoped slots have been deprecated and " +
-            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-            "can also be used on plain elements in addition to <template> to " +
-            "denote scoped slots.",
-            true
-          );
-        }
-        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-        /* istanbul ignore if */
-        if (el.attrsMap['v-for']) {
-          warn$2(
-            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-            "(v-for takes higher priority). Use a wrapper <template> for the " +
-            "scoped slot to make it clearer.",
-            true
-          );
-        }
-        el.slotScope = slotScope;
-      }
-      var slotTarget = getBindingAttr(el, 'slot');
-      if (slotTarget) {
-        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-        // preserve slot as an attribute for native shadow DOM compat
-        // only for non-scoped slots.
-        if (el.tag !== 'template' && !el.slotScope) {
-          addAttr(el, 'slot', slotTarget);
-        }
-      }
     }
   }
 
@@ -9614,7 +9874,7 @@
 
   function processAttrs (el) {
     var list = el.attrsList;
-    var i, l, name, rawName, value, modifiers, isProp;
+    var i, l, name, rawName, value, modifiers, isProp, syncGen;
     for (i = 0, l = list.length; i < l; i++) {
       name = rawName = list[i].name;
       value = list[i].value;
@@ -9622,8 +9882,12 @@
         // mark element as dynamic
         el.hasBindings = true;
         // modifiers
-        modifiers = parseModifiers(name);
-        if (modifiers) {
+        modifiers = parseModifiers(name.replace(dirRE, ''));
+        // support .foo shorthand syntax for the .prop modifier
+        if (propBindRE.test(name)) {
+          (modifiers || (modifiers = {})).prop = true;
+          name = "." + name.slice(1).replace(modifierRE, '');
+        } else if (modifiers) {
           name = name.replace(modifierRE, '');
         }
         if (bindRE.test(name)) { // v-bind
@@ -9647,23 +9911,39 @@
               name = camelize(name);
             }
             if (modifiers.sync) {
+              syncGen = genAssignmentCode(value, "$event");
               addHandler(
                 el,
                 ("update:" + (camelize(name))),
-                genAssignmentCode(value, "$event")
+                syncGen,
+                null,
+                false,
+                warn$2,
+                list[i]
               );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  ("update:" + (hyphenate(name))),
+                  syncGen,
+                  null,
+                  false,
+                  warn$2,
+                  list[i]
+                );
+              }
             }
           }
           if (isProp || (
             !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
           )) {
-            addProp(el, name, value);
+            addProp(el, name, value, list[i]);
           } else {
-            addAttr(el, name, value);
+            addAttr(el, name, value, list[i]);
           }
         } else if (onRE.test(name)) { // v-on
           name = name.replace(onRE, '');
-          addHandler(el, name, value, modifiers, false, warn$2);
+          addHandler(el, name, value, modifiers, false, warn$2, list[i]);
         } else { // normal directives
           name = name.replace(dirRE, '');
           // parse arg
@@ -9672,7 +9952,7 @@
           if (arg) {
             name = name.slice(0, -(arg.length + 1));
           }
-          addDirective(el, name, rawName, value, arg, modifiers);
+          addDirective(el, name, rawName, value, arg, modifiers, list[i]);
           if (name === 'model') {
             checkForAliasModel(el, value);
           }
@@ -9686,17 +9966,18 @@
               name + "=\"" + value + "\": " +
               'Interpolation inside attributes has been removed. ' +
               'Use v-bind or the colon shorthand instead. For example, ' +
-              'instead of <div id="{{ val }}">, use <div :id="val">.'
+              'instead of <div id="{{ val }}">, use <div :id="val">.',
+              list[i]
             );
           }
         }
-        addAttr(el, name, JSON.stringify(value));
+        addAttr(el, name, JSON.stringify(value), list[i]);
         // #6887 firefox doesn't update muted state if set via attribute
         // even immediately after element creation
         if (!el.component &&
             name === 'muted' &&
             platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-          addProp(el, name, 'true');
+          addProp(el, name, 'true', list[i]);
         }
       }
     }
@@ -9728,7 +10009,7 @@
       if (
         map[attrs[i].name] && !isIE && !isEdge
       ) {
-        warn$2('duplicate attribute: ' + attrs[i].name);
+        warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
       }
       map[attrs[i].name] = attrs[i].value;
     }
@@ -9775,7 +10056,8 @@
           "You are binding v-model directly to a v-for iteration alias. " +
           "This will not be able to modify the v-for source array because " +
           "writing to the alias is like modifying a function local variable. " +
-          "Consider using an array of objects and use v-model on an object property instead."
+          "Consider using an array of objects and use v-model on an object property instead.",
+          el.rawAttrsMap['v-model']
         );
       }
       _el = _el.parent;
@@ -9864,7 +10146,7 @@
 
   function text (el, dir) {
     if (dir.value) {
-      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
     }
   }
 
@@ -9872,7 +10154,7 @@
 
   function html (el, dir) {
     if (dir.value) {
-      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
     }
   }
 
@@ -9927,7 +10209,7 @@
 
   function genStaticKeys$1 (keys) {
     return makeMap(
-      'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+      'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
       (keys ? ',' + keys : '')
     )
   }
@@ -10027,6 +10309,7 @@
   /*  */
 
   var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
   // KeyboardEvent.keyCode aliases
@@ -10102,12 +10385,13 @@
 
     var isMethodPath = simplePathRE.test(handler.value);
     var isFunctionExpression = fnExpRE.test(handler.value);
+    var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
 
     if (!handler.modifiers) {
       if (isMethodPath || isFunctionExpression) {
         return handler.value
       }
-      return ("function($event){" + (handler.value) + "}") // inline statement
+      return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
     } else {
       var code = '';
       var genModifierCode = '';
@@ -10142,7 +10426,9 @@
         ? ("return " + (handler.value) + "($event)")
         : isFunctionExpression
           ? ("return (" + (handler.value) + ")($event)")
-          : handler.value;
+          : isFunctionInvocation
+            ? ("return " + (handler.value))
+            : handler.value;
       return ("function($event){" + code + handlerCode + "}")
     }
   }
@@ -10206,7 +10492,7 @@
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
     this.directives = extend(extend({}, baseDirectives), options.directives);
     var isReservedTag = options.isReservedTag || no;
-    this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+    this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
     this.onceId = 0;
     this.staticRenderFns = [];
     this.pre = false;
@@ -10297,7 +10583,8 @@
       }
       if (!key) {
         state.warn(
-          "v-once can only be used inside v-for that is keyed. "
+          "v-once can only be used inside v-for that is keyed. ",
+          el.rawAttrsMap['v-once']
         );
         return genElement(el, state)
       }
@@ -10364,6 +10651,7 @@
         "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
         "v-for should have explicit keys. " +
         "See https://vuejs.org/guide/list.html#key for more info.",
+        el.rawAttrsMap['v-for'],
         true /* tip */
       );
     }
@@ -10481,7 +10769,10 @@
   function genInlineTemplate (el, state) {
     var ast = el.children[0];
     if (el.children.length !== 1 || ast.type !== 1) {
-      state.warn('Inline-template components must have exactly one child element.');
+      state.warn(
+        'Inline-template components must have exactly one child element.',
+        { start: el.start }
+      );
     }
     if (ast.type === 1) {
       var inlineRenderFns = generate(ast, state.options);
@@ -10660,6 +10951,8 @@
 
   /*  */
 
+
+
   // these keywords should not appear inside expressions, but operators like
   // typeof, instanceof and in are allowed
   var prohibitedKeywordRE = new RegExp('\\b' + (
@@ -10677,89 +10970,92 @@
   var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
   // detect problematic expressions in a template
-  function detectErrors (ast) {
-    var errors = [];
+  function detectErrors (ast, warn) {
     if (ast) {
-      checkNode(ast, errors);
+      checkNode(ast, warn);
     }
-    return errors
   }
 
-  function checkNode (node, errors) {
+  function checkNode (node, warn) {
     if (node.type === 1) {
       for (var name in node.attrsMap) {
         if (dirRE.test(name)) {
           var value = node.attrsMap[name];
           if (value) {
+            var range = node.rawAttrsMap[name];
             if (name === 'v-for') {
-              checkFor(node, ("v-for=\"" + value + "\""), errors);
+              checkFor(node, ("v-for=\"" + value + "\""), warn, range);
             } else if (onRE.test(name)) {
-              checkEvent(value, (name + "=\"" + value + "\""), errors);
+              checkEvent(value, (name + "=\"" + value + "\""), warn, range);
             } else {
-              checkExpression(value, (name + "=\"" + value + "\""), errors);
+              checkExpression(value, (name + "=\"" + value + "\""), warn, range);
             }
           }
         }
       }
       if (node.children) {
         for (var i = 0; i < node.children.length; i++) {
-          checkNode(node.children[i], errors);
+          checkNode(node.children[i], warn);
         }
       }
     } else if (node.type === 2) {
-      checkExpression(node.expression, node.text, errors);
+      checkExpression(node.expression, node.text, warn, node);
     }
   }
 
-  function checkEvent (exp, text, errors) {
+  function checkEvent (exp, text, warn, range) {
     var stipped = exp.replace(stripStringRE, '');
     var keywordMatch = stipped.match(unaryOperatorsRE);
     if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-      errors.push(
+      warn(
         "avoid using JavaScript unary operator as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
+        range
       );
     }
-    checkExpression(exp, text, errors);
+    checkExpression(exp, text, warn, range);
   }
 
-  function checkFor (node, text, errors) {
-    checkExpression(node.for || '', text, errors);
-    checkIdentifier(node.alias, 'v-for alias', text, errors);
-    checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-    checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+  function checkFor (node, text, warn, range) {
+    checkExpression(node.for || '', text, warn, range);
+    checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+    checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+    checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
   }
 
   function checkIdentifier (
     ident,
     type,
     text,
-    errors
+    warn,
+    range
   ) {
     if (typeof ident === 'string') {
       try {
         new Function(("var " + ident + "=_"));
       } catch (e) {
-        errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+        warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
       }
     }
   }
 
-  function checkExpression (exp, text, errors) {
+  function checkExpression (exp, text, warn, range) {
     try {
       new Function(("return " + exp));
     } catch (e) {
       var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
       if (keywordMatch) {
-        errors.push(
+        warn(
           "avoid using JavaScript keyword as property name: " +
-          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
+          range
         );
       } else {
-        errors.push(
+        warn(
           "invalid expression: " + (e.message) + " in\n\n" +
           "    " + exp + "\n\n" +
-          "  Raw expression: " + (text.trim()) + "\n"
+          "  Raw expression: " + (text.trim()) + "\n",
+          range
         );
       }
     }
@@ -10767,6 +11063,58 @@
 
   /*  */
 
+  var range = 2;
+
+  function generateCodeFrame (
+    source,
+    start,
+    end
+  ) {
+    if ( start === void 0 ) start = 0;
+    if ( end === void 0 ) end = source.length;
+
+    var lines = source.split(/\r?\n/);
+    var count = 0;
+    var res = [];
+    for (var i = 0; i < lines.length; i++) {
+      count += lines[i].length + 1;
+      if (count >= start) {
+        for (var j = i - range; j <= i + range || end > count; j++) {
+          if (j < 0 || j >= lines.length) { continue }
+          res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
+          var lineLength = lines[j].length;
+          if (j === i) {
+            // push underline
+            var pad = start - (count - lineLength) + 1;
+            var length = end > count ? lineLength - pad : end - start;
+            res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
+          } else if (j > i) {
+            if (end > count) {
+              var length$1 = Math.min(end - count, lineLength);
+              res.push("   |  " + repeat$1("^", length$1));
+            }
+            count += lineLength + 1;
+          }
+        }
+        break
+      }
+    }
+    return res.join('\n')
+  }
+
+  function repeat$1 (str, n) {
+    var result = '';
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
+    return result
+  }
+
+  /*  */
+
 
 
   function createFunction (code, errors) {
@@ -10822,14 +11170,28 @@
       // check compilation errors/tips
       {
         if (compiled.errors && compiled.errors.length) {
-          warn$$1(
-            "Error compiling template:\n\n" + template + "\n\n" +
-            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-            vm
-          );
+          if (options.outputSourceRange) {
+            compiled.errors.forEach(function (e) {
+              warn$$1(
+                "Error compiling template:\n\n" + (e.msg) + "\n\n" +
+                generateCodeFrame(template, e.start, e.end),
+                vm
+              );
+            });
+          } else {
+            warn$$1(
+              "Error compiling template:\n\n" + template + "\n\n" +
+              compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+              vm
+            );
+          }
         }
         if (compiled.tips && compiled.tips.length) {
-          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+          if (options.outputSourceRange) {
+            compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
+          } else {
+            compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+          }
         }
       }
 
@@ -10875,11 +11237,29 @@
         var finalOptions = Object.create(baseOptions);
         var errors = [];
         var tips = [];
-        finalOptions.warn = function (msg, tip) {
+
+        var warn = function (msg, range, tip) {
           (tip ? tips : errors).push(msg);
         };
 
         if (options) {
+          if (options.outputSourceRange) {
+            // $flow-disable-line
+            var leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+            warn = function (msg, range, tip) {
+              var data = { msg: msg };
+              if (range) {
+                if (range.start != null) {
+                  data.start = range.start + leadingSpaceLength;
+                }
+                if (range.end != null) {
+                  data.end = range.end + leadingSpaceLength;
+                }
+              }
+              (tip ? tips : errors).push(data);
+            };
+          }
           // merge custom modules
           if (options.modules) {
             finalOptions.modules =
@@ -10900,9 +11280,11 @@
           }
         }
 
-        var compiled = baseCompile(template, finalOptions);
+        finalOptions.warn = warn;
+
+        var compiled = baseCompile(template.trim(), finalOptions);
         {
-          errors.push.apply(errors, detectErrors(compiled.ast));
+          detectErrors(compiled.ast, warn);
         }
         compiled.errors = errors;
         compiled.tips = tips;
@@ -11014,6 +11396,7 @@
         }
 
         var ref = compileToFunctions(template, {
+          outputSourceRange: "development" !== 'production',
           shouldDecodeNewlines: shouldDecodeNewlines,
           shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
           delimiters: options.delimiters,
@@ -11052,4 +11435,4 @@
 
   return Vue;
 
-})));
+}));
diff --git a/dist/vue.min.js b/dist/vue.min.js
index caa22de7da4..d81653a2e29 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.22
+ * Vue.js v2.6.0-beta.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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n.slice(0,-1)+"}"}function ga(e,t){if(!t)return"function(){}";if(Array.isArray(t))return"["+t.map(function(t){return ga(e,t)}).join(",")+"]";var n=pa.test(t.value),r=la.test(t.value),i=pa.test(t.value.replace(fa,""));if(t.modifiers){var o="",a="",s=[];for(var c in t.modifiers)if(ma[c])a+=ma[c],da[c]&&s.push(c);else if("exact"===c){var u=t.modifiers;a+=ha(["ctrl","shift","alt","meta"].filter(function(e){return!u[e]}).map(function(e){return"$event."+e+"Key"}).join("||"))}else s.push(c);return s.length&&(o+=function(e){return"if(!('button' in $event)&&"+e.map(_a).join("&&")+")return null;"}(s)),a&&(o+=a),"function($event){"+o+(n?"return "+t.value+"($event)":r?"return ("+t.value+")($event)":i?"return "+t.value:t.value)+"}"}return n||r?t.value:"function($event){"+(i?"return "+t.value:t.value)+"}"}function _a(e){var t=parseInt(e,10);if(t)return"$event.keyCode!=="+t;var n=da[e],r=va[e];return"_k($event.keyCode,"+JSON.stringify(e)+","+JSON.stringify(n)+",$event.key,"+JSON.stringify(r)+")"}var 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n=t.pre;return e.pre&&(t.pre=e.pre),t.staticRenderFns.push("with(this){return "+Ca(e,t)+"}"),t.pre=n,"_m("+(t.staticRenderFns.length-1)+(e.staticInFor?",true":"")+")"}function Aa(e,t){if(e.onceProcessed=!0,e.if&&!e.ifProcessed)return ka(e,t);if(e.staticInFor){for(var n="",r=e.parent;r;){if(r.for){n=r.key;break}r=r.parent}return n?"_o("+Ca(e,t)+","+t.onceId+++","+n+")":Ca(e,t)}return xa(e,t)}function ka(e,t,n,r){return e.ifProcessed=!0,function e(t,n,r,i){if(!t.length)return i||"_e()";var o=t.shift();return o.exp?"("+o.exp+")?"+a(o.block)+":"+e(t,n,r,i):""+a(o.block);function a(e){return r?r(e,n):e.once?Aa(e,n):Ca(e,n)}}(e.ifConditions.slice(),t,n,r)}function Oa(e,t){var n="{",r=function(e,t){var n=e.directives;if(!n)return;var r,i,o,a,s="directives:[",c=!1;for(r=0,i=n.length;r<i;r++){o=n[r],a=!0;var u=t.directives[o.name];u&&(a=!!u(e,o,t.warn)),a&&(c=!0,s+='{name:"'+o.name+'",rawName:"'+o.rawName+'"'+(o.value?",value:("+o.value+"),expression:"+JSON.stringify(o.value):"")+(o.arg?',arg:"'+o.arg+'"':"")+(o.modifiers?",modifiers:"+JSON.stringify(o.modifiers):"")+"},")}if(c)return s.slice(0,-1)+"]"}(e,t);r&&(n+=r+","),e.key&&(n+="key:"+e.key+","),e.ref&&(n+="ref:"+e.ref+","),e.refInFor&&(n+="refInFor:true,"),e.pre&&(n+="pre:true,"),e.component&&(n+='tag:"'+e.tag+'",');for(var i=0;i<t.dataGenFns.length;i++)n+=t.dataGenFns[i](e);if(e.attrs&&(n+="attrs:{"+ja(e.attrs)+"},"),e.props&&(n+="domProps:{"+ja(e.props)+"},"),e.events&&(n+=ya(e.events,!1)+","),e.nativeEvents&&(n+=ya(e.nativeEvents,!0)+","),e.slotTarget&&!e.slotScope&&(n+="slot:"+e.slotTarget+","),e.scopedSlots&&(n+=function(e,t){return"scopedSlots:_u(["+Object.keys(e).map(function(n){return 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t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var i=Fa(r,{outputSourceRange:!1,shouldDecodeNewlines:Ba,shouldDecodeNewlinesForHref:Ua,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return Va.call(this,e,t)},vn.compile=Fa,vn});
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diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 3475ed5539e..5ec9cb7f866 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.5.22
+ * Vue.js v2.6.0-beta.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -76,13 +76,21 @@ function isValidArrayIndex (val) {
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
+function isPromise (val) {
+  return (
+    isDef(val) &&
+    typeof val.then === 'function' &&
+    typeof val.catch === 'function'
+  )
+}
+
 /**
  * Convert a value to a string that is actually rendered.
  */
 function toString (val) {
   return val == null
     ? ''
-    : typeof val === 'object'
+    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
       ? JSON.stringify(val, null, 2)
       : String(val)
 }
@@ -349,7 +357,8 @@ var LIFECYCLE_HOOKS = [
   'destroyed',
   'activated',
   'deactivated',
-  'errorCaptured'
+  'errorCaptured',
+  'ssrPrefetch'
 ];
 
 /*  */
@@ -452,6 +461,13 @@ var config = ({
 
 /*  */
 
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
 /**
  * Check if a string starts with $ or _
  */
@@ -475,7 +491,7 @@ function def (obj, key, val, enumerable) {
 /**
  * Parse simple path.
  */
-var bailRE = /[^\w.$]/;
+var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
 function parsePath (path) {
   if (bailRE.test(path)) {
     return
@@ -506,6 +522,7 @@ var isEdge = UA && UA.indexOf('edge/') > 0;
 var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+var isPhantomJS = UA && /phantomjs/.test(UA);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -1151,9 +1168,15 @@ if (process.env.NODE_ENV !== 'production') {
 function mergeData (to, from) {
   if (!from) { return to }
   var key, toVal, fromVal;
-  var keys = Object.keys(from);
+
+  var keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from);
+
   for (var i = 0; i < keys.length; i++) {
     key = keys[i];
+    // in case the object is already observed...
+    if (key === '__ob__') { continue }
     toVal = to[key];
     fromVal = from[key];
     if (!hasOwn(to, key)) {
@@ -1373,11 +1396,10 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
+      'should conform to valid custom element name in html5 specification.'
     );
   }
   if (isBuiltInTag(name) || config.isReservedTag(name)) {
@@ -1460,9 +1482,9 @@ function normalizeDirectives (options) {
   var dirs = options.directives;
   if (dirs) {
     for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
+      var def$$1 = dirs[key];
+      if (typeof def$$1 === 'function') {
+        dirs[key] = { bind: def$$1, update: def$$1 };
       }
     }
   }
@@ -1812,6 +1834,25 @@ function handleError (err, vm, info) {
   globalHandleError(err, vm, info);
 }
 
+function invokeWithErrorHandling (
+  handler,
+  context,
+  args,
+  vm,
+  info
+) {
+  var res;
+  try {
+    res = args ? handler.apply(context, args) : handler.call(context);
+    if (isPromise(res)) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+    }
+  } catch (e) {
+    handleError(e, vm, info);
+  }
+  return res
+}
+
 function globalHandleError (err, vm, info) {
   if (config.errorHandler) {
     try {
@@ -1849,76 +1890,67 @@ function flushCallbacks () {
   }
 }
 
-// Here we have async deferring wrappers using both microtasks and (macro) tasks.
-// In < 2.4 we used microtasks everywhere, but there are some scenarios where
-// microtasks have too high a priority and fire in between supposedly
-// sequential events (e.g. #4521, #6690) or even between bubbling of the same
-// event (#6566). However, using (macro) tasks everywhere also has subtle problems
-// when state is changed right before repaint (e.g. #6813, out-in transitions).
-// Here we use microtask by default, but expose a way to force (macro) task when
-// needed (e.g. in event handlers attached by v-on).
-var microTimerFunc;
-var macroTimerFunc;
-var useMacroTask = false;
-
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-  macroTimerFunc = function () {
-    setImmediate(flushCallbacks);
-  };
-} else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  var port = channel.port2;
-  channel.port1.onmessage = flushCallbacks;
-  macroTimerFunc = function () {
-    port.postMessage(1);
-  };
-} else {
-  /* istanbul ignore next */
-  macroTimerFunc = function () {
-    setTimeout(flushCallbacks, 0);
-  };
-}
-
-// Determine microtask defer implementation.
+// Here we have async deferring wrappers using microtasks.
+// In 2.5 we used (macro) tasks (in combination with microtasks).
+// However, it has subtle problems when state is changed right before repaint
+// (e.g. #6813, out-in transitions).
+// Also, using (macro) tasks in event handler would cause some weird behaviors
+// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+// So we now use microtasks everywhere, again.
+// A major drawback of this tradeoff is that there are some scenarios
+// where microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690, which have workarounds)
+// or even between bubbling of the same event (#6566).
+var timerFunc;
+
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
 /* istanbul ignore next, $flow-disable-line */
 if (typeof Promise !== 'undefined' && isNative(Promise)) {
   var p = Promise.resolve();
-  microTimerFunc = function () {
+  timerFunc = function () {
     p.then(flushCallbacks);
-    // in problematic UIWebViews, Promise.then doesn't completely break, but
+    // In problematic UIWebViews, Promise.then doesn't completely break, but
     // it can get stuck in a weird state where callbacks are pushed into the
     // microtask queue but the queue isn't being flushed, until the browser
     // needs to do some other work, e.g. handle a timer. Therefore we can
     // "force" the microtask queue to be flushed by adding an empty timer.
     if (isIOS) { setTimeout(noop); }
   };
+} else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  var counter = 1;
+  var observer = new MutationObserver(flushCallbacks);
+  var textNode = document.createTextNode(String(counter));
+  observer.observe(textNode, {
+    characterData: true
+  });
+  timerFunc = function () {
+    counter = (counter + 1) % 2;
+    textNode.data = String(counter);
+  };
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  // Fallback to setImmediate.
+  // Techinically it leverages the (macro) task queue,
+  // but it is still a better choice than setTimeout.
+  timerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
 } else {
-  // fallback to macro
-  microTimerFunc = macroTimerFunc;
-}
-
-/**
- * Wrap a function so that if any code inside triggers state change,
- * the changes are queued using a (macro) task instead of a microtask.
- */
-function withMacroTask (fn) {
-  return fn._withTask || (fn._withTask = function () {
-    useMacroTask = true;
-    try {
-      return fn.apply(null, arguments)
-    } finally {
-      useMacroTask = false;    
-    }
-  })
+  // Fallback to setTimeout.
+  timerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
 }
 
 function nextTick (cb, ctx) {
@@ -1936,11 +1968,7 @@ function nextTick (cb, ctx) {
   });
   if (!pending) {
     pending = true;
-    if (useMacroTask) {
-      macroTimerFunc();
-    } else {
-      microTimerFunc();
-    }
+    timerFunc();
   }
   // $flow-disable-line
   if (!cb && typeof Promise !== 'undefined') {
@@ -2095,7 +2123,7 @@ if (process.env.NODE_ENV !== 'production') {
       perf.measure(name, startTag, endTag);
       perf.clearMarks(startTag);
       perf.clearMarks(endTag);
-      perf.clearMeasures(name);
+      // perf.clearMeasures(name)
     };
   }
 }
@@ -2117,7 +2145,7 @@ var normalizeEvent = cached(function (name) {
   }
 });
 
-function createFnInvoker (fns) {
+function createFnInvoker (fns, vm) {
   function invoker () {
     var arguments$1 = arguments;
 
@@ -2125,11 +2153,11 @@ function createFnInvoker (fns) {
     if (Array.isArray(fns)) {
       var cloned = fns.slice();
       for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
+        invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
       }
     } else {
       // return handler return value for single handlers
-      return fns.apply(null, arguments)
+      return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
     }
   }
   invoker.fns = fns;
@@ -2156,7 +2184,7 @@ function updateListeners (
       );
     } else if (isUndef(old)) {
       if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
+        cur = on[name] = createFnInvoker(cur, vm);
       }
       if (isTrue(event.once)) {
         cur = on[name] = createOnceHandler(event.name, cur, event.capture);
@@ -2452,12 +2480,12 @@ function resolveAsyncComponent (
     var res = factory(resolve, reject);
 
     if (isObject(res)) {
-      if (typeof res.then === 'function') {
+      if (isPromise(res)) {
         // () => Promise
         if (isUndef(factory.resolved)) {
           res.then(resolve, reject);
         }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+      } else if (isPromise(res.component)) {
         res.component.then(resolve, reject);
 
         if (isDef(res.error)) {
@@ -2647,12 +2675,9 @@ function eventsMixin (Vue) {
     if (cbs) {
       cbs = cbs.length > 1 ? toArray(cbs) : cbs;
       var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
       for (var i = 0, l = cbs.length; i < l; i++) {
-        try {
-          cbs[i].apply(vm, args);
-        } catch (e) {
-          handleError(e, vm, ("event handler for \"" + event + "\""));
-        }
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
       }
     }
     return vm
@@ -2670,10 +2695,10 @@ function resolveSlots (
   children,
   context
 ) {
-  var slots = {};
-  if (!children) {
-    return slots
+  if (!children || !children.length) {
+    return {}
   }
+  var slots = {};
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -2716,10 +2741,11 @@ function resolveScopedSlots (
 ) {
   res = res || {};
   for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, res);
     } else {
-      res[fns[i].key] = fns[i].fn;
+      res[slot.key] = slot.fn;
     }
   }
   return res
@@ -3032,13 +3058,10 @@ function callHook (vm, hook) {
   // #7573 disable dep collection when invoking lifecycle hooks
   pushTarget();
   var handlers = vm.$options[hook];
+  var info = hook + " hook";
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
     }
   }
   if (vm._hasHookEvent) {
@@ -3786,14 +3809,13 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
+      ? Reflect.ownKeys(inject)
       : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
@@ -3820,6 +3842,48 @@ function resolveInject (inject, vm) {
 
 /*  */
 
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key]) {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
+  }
+  res._normalized = true;
+  return res
+}
+
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
+
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
+}
+
+/*  */
+
 /**
  * Runtime helper for rendering v-for lists.
  */
@@ -3839,11 +3903,21 @@ function renderList (
       ret[i] = render(i + 1, i);
     }
   } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
+      }
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
     }
   }
   if (!isDef(ret)) {
@@ -4124,13 +4198,20 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
+
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
     this.$options = options;
     // pre-resolve slots for renderSlot()
     this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
   }
 
   if (options._scopeId) {
@@ -4641,7 +4722,10 @@ function renderMixin (Vue) {
     var _parentVnode = ref._parentVnode;
 
     if (_parentVnode) {
-      vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
     }
 
     // set parent vnode. this allows render functions to have access
@@ -4667,6 +4751,10 @@ function renderMixin (Vue) {
         vnode = vm._vnode;
       }
     }
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
+    }
     // return empty vnode in case the render function errored out
     if (!(vnode instanceof VNode)) {
       if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
@@ -5136,6 +5224,12 @@ function initGlobalAPI (Vue) {
   Vue.delete = del;
   Vue.nextTick = nextTick;
 
+  // 2.6 explicit observable API
+  Vue.observable = function (obj) {
+    observe(obj);
+    return obj
+  };
+
   Vue.options = Object.create(null);
   ASSET_TYPES.forEach(function (type) {
     Vue.options[type + 's'] = Object.create(null);
@@ -5171,7 +5265,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.5.22';
+Vue.version = '2.6.0-beta.1';
 
 /*  */
 
@@ -6587,14 +6681,28 @@ function createOnceHandler$1 (event, handler, capture) {
 }
 
 function add$1 (
-  event,
+  name,
   handler,
   capture,
   passive
 ) {
-  handler = withMacroTask(handler);
+  if (isChrome) {
+    // async edge case #6566: inner click event triggers patch, event handler
+    // attached to outer element during patch, and triggered again. This only
+    // happens in Chrome as it fires microtask ticks between event propagation.
+    // the solution is simple: we save the timestamp when a handler is attached,
+    // and the handler would only fire if the event passed to it was fired
+    // AFTER it was attached.
+    var now = performance.now();
+    var original = handler;
+    handler = original._wrapper = function (e) {
+      if (e.timeStamp >= now) {
+        return original.apply(this, arguments)
+      }
+    };
+  }
   target$1.addEventListener(
-    event,
+    name,
     handler,
     supportsPassive
       ? { capture: capture, passive: passive }
@@ -6603,14 +6711,14 @@ function add$1 (
 }
 
 function remove$2 (
-  event,
+  name,
   handler,
   capture,
   _target
 ) {
   (_target || target$1).removeEventListener(
-    event,
-    handler._withTask || handler,
+    name,
+    handler._wrapper || handler,
     capture
   );
 }
@@ -6634,6 +6742,8 @@ var events = {
 
 /*  */
 
+var svgContainer;
+
 function updateDOMProps (oldVnode, vnode) {
   if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
     return
@@ -6667,6 +6777,17 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
+    // #4521: if a click event triggers update before the change event is
+    // dispatched on a checkbox/radio input, the input's checked state will
+    // be reset and fail to trigger another update.
+    // The root cause here is that browsers may fire microtasks in between click/change.
+    // In Chrome / Firefox, click event fires before change, thus having this problem.
+    // In Safari / Edge, the order is opposite.
+    // Note: in Edge, if you click too fast, only the click event would fire twice.
+    if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+      continue
+    }
+
     if (key === 'value') {
       // store value as _value as well since
       // non-string values will be stringified
@@ -6676,6 +6797,17 @@ function updateDOMProps (oldVnode, vnode) {
       if (shouldUpdateValue(elm, strCur)) {
         elm.value = strCur;
       }
+    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+      // IE doesn't support innerHTML for SVG elements
+      svgContainer = svgContainer || document.createElement('div');
+      svgContainer.innerHTML = "<svg>" + cur + "</svg>";
+      var svg = svgContainer.firstChild;
+      while (elm.firstChild) {
+        elm.removeChild(elm.firstChild);
+      }
+      while (svg.firstChild) {
+        elm.appendChild(svg.firstChild);
+      }
     } else {
       elm[key] = cur;
     }
@@ -6707,10 +6839,6 @@ function isDirtyWithModifiers (elm, newVal) {
   var value = elm.value;
   var modifiers = elm._vModifiers; // injected by v-model runtime
   if (isDef(modifiers)) {
-    if (modifiers.lazy) {
-      // inputs with lazy should only be updated when not in focus
-      return false
-    }
     if (modifiers.number) {
       return toNumber(value) !== toNumber(newVal)
     }
@@ -8079,8 +8207,7 @@ if (inBrowser) {
         devtools.emit('init', Vue);
       } else if (
         process.env.NODE_ENV !== 'production' &&
-        process.env.NODE_ENV !== 'test' &&
-        isChrome
+        process.env.NODE_ENV !== 'test'
       ) {
         console[console.info ? 'info' : 'log'](
           'Download the Vue Devtools extension for a better development experience:\n' +
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 8e7d61092a9..cd89a0d9c45 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,13 +1,13 @@
 /*!
- * Vue.js v2.5.22
+ * Vue.js v2.6.0-beta.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
   typeof define === 'function' && define.amd ? define(factory) :
-  (global.Vue = factory());
-}(this, (function () { 'use strict';
+  (global = global || self, global.Vue = factory());
+}(this, function () { 'use strict';
 
   /*  */
 
@@ -82,13 +82,21 @@
     return n >= 0 && Math.floor(n) === n && isFinite(val)
   }
 
+  function isPromise (val) {
+    return (
+      isDef(val) &&
+      typeof val.then === 'function' &&
+      typeof val.catch === 'function'
+    )
+  }
+
   /**
    * Convert a value to a string that is actually rendered.
    */
   function toString (val) {
     return val == null
       ? ''
-      : typeof val === 'object'
+      : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
         ? JSON.stringify(val, null, 2)
         : String(val)
   }
@@ -355,7 +363,8 @@
     'destroyed',
     'activated',
     'deactivated',
-    'errorCaptured'
+    'errorCaptured',
+    'ssrPrefetch'
   ];
 
   /*  */
@@ -458,6 +467,13 @@
 
   /*  */
 
+  /**
+   * unicode letters used for parsing html tags, component names and property paths.
+   * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+   * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+   */
+  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
   /**
    * Check if a string starts with $ or _
    */
@@ -481,7 +497,7 @@
   /**
    * Parse simple path.
    */
-  var bailRE = /[^\w.$]/;
+  var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
   function parsePath (path) {
     if (bailRE.test(path)) {
       return
@@ -512,6 +528,7 @@
   var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+  var isPhantomJS = UA && /phantomjs/.test(UA);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -1155,9 +1172,15 @@
   function mergeData (to, from) {
     if (!from) { return to }
     var key, toVal, fromVal;
-    var keys = Object.keys(from);
+
+    var keys = hasSymbol
+      ? Reflect.ownKeys(from)
+      : Object.keys(from);
+
     for (var i = 0; i < keys.length; i++) {
       key = keys[i];
+      // in case the object is already observed...
+      if (key === '__ob__') { continue }
       toVal = to[key];
       fromVal = from[key];
       if (!hasOwn(to, key)) {
@@ -1377,11 +1400,10 @@
   }
 
   function validateComponentName (name) {
-    if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
       warn(
         'Invalid component name: "' + name + '". Component names ' +
-        'can only contain alphanumeric characters and the hyphen, ' +
-        'and must start with a letter.'
+        'should conform to valid custom element name in html5 specification.'
       );
     }
     if (isBuiltInTag(name) || config.isReservedTag(name)) {
@@ -1464,9 +1486,9 @@
     var dirs = options.directives;
     if (dirs) {
       for (var key in dirs) {
-        var def = dirs[key];
-        if (typeof def === 'function') {
-          dirs[key] = { bind: def, update: def };
+        var def$$1 = dirs[key];
+        if (typeof def$$1 === 'function') {
+          dirs[key] = { bind: def$$1, update: def$$1 };
         }
       }
     }
@@ -1812,6 +1834,25 @@
     globalHandleError(err, vm, info);
   }
 
+  function invokeWithErrorHandling (
+    handler,
+    context,
+    args,
+    vm,
+    info
+  ) {
+    var res;
+    try {
+      res = args ? handler.apply(context, args) : handler.call(context);
+      if (isPromise(res)) {
+        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      }
+    } catch (e) {
+      handleError(e, vm, info);
+    }
+    return res
+  }
+
   function globalHandleError (err, vm, info) {
     if (config.errorHandler) {
       try {
@@ -1849,76 +1890,67 @@
     }
   }
 
-  // Here we have async deferring wrappers using both microtasks and (macro) tasks.
-  // In < 2.4 we used microtasks everywhere, but there are some scenarios where
-  // microtasks have too high a priority and fire in between supposedly
-  // sequential events (e.g. #4521, #6690) or even between bubbling of the same
-  // event (#6566). However, using (macro) tasks everywhere also has subtle problems
-  // when state is changed right before repaint (e.g. #6813, out-in transitions).
-  // Here we use microtask by default, but expose a way to force (macro) task when
-  // needed (e.g. in event handlers attached by v-on).
-  var microTimerFunc;
-  var macroTimerFunc;
-  var useMacroTask = false;
-
-  // Determine (macro) task defer implementation.
-  // Technically setImmediate should be the ideal choice, but it's only available
-  // in IE. The only polyfill that consistently queues the callback after all DOM
-  // events triggered in the same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
-    macroTimerFunc = function () {
-      setImmediate(flushCallbacks);
-    };
-  } else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    var port = channel.port2;
-    channel.port1.onmessage = flushCallbacks;
-    macroTimerFunc = function () {
-      port.postMessage(1);
-    };
-  } else {
-    /* istanbul ignore next */
-    macroTimerFunc = function () {
-      setTimeout(flushCallbacks, 0);
-    };
-  }
-
-  // Determine microtask defer implementation.
+  // Here we have async deferring wrappers using microtasks.
+  // In 2.5 we used (macro) tasks (in combination with microtasks).
+  // However, it has subtle problems when state is changed right before repaint
+  // (e.g. #6813, out-in transitions).
+  // Also, using (macro) tasks in event handler would cause some weird behaviors
+  // that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+  // So we now use microtasks everywhere, again.
+  // A major drawback of this tradeoff is that there are some scenarios
+  // where microtasks have too high a priority and fire in between supposedly
+  // sequential events (e.g. #4521, #6690, which have workarounds)
+  // or even between bubbling of the same event (#6566).
+  var timerFunc;
+
+  // The nextTick behavior leverages the microtask queue, which can be accessed
+  // via either native Promise.then or MutationObserver.
+  // MutationObserver has wider support, however it is seriously bugged in
+  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+  // completely stops working after triggering a few times... so, if native
+  // Promise is available, we will use it:
   /* istanbul ignore next, $flow-disable-line */
   if (typeof Promise !== 'undefined' && isNative(Promise)) {
     var p = Promise.resolve();
-    microTimerFunc = function () {
+    timerFunc = function () {
       p.then(flushCallbacks);
-      // in problematic UIWebViews, Promise.then doesn't completely break, but
+      // In problematic UIWebViews, Promise.then doesn't completely break, but
       // it can get stuck in a weird state where callbacks are pushed into the
       // microtask queue but the queue isn't being flushed, until the browser
       // needs to do some other work, e.g. handle a timer. Therefore we can
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
+  } else if (!isIE && typeof MutationObserver !== 'undefined' && (
+    isNative(MutationObserver) ||
+    // PhantomJS and iOS 7.x
+    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  )) {
+    // Use MutationObserver where native Promise is not available,
+    // e.g. PhantomJS, iOS7, Android 4.4
+    // (#6466 MutationObserver is unreliable in IE11)
+    var counter = 1;
+    var observer = new MutationObserver(flushCallbacks);
+    var textNode = document.createTextNode(String(counter));
+    observer.observe(textNode, {
+      characterData: true
+    });
+    timerFunc = function () {
+      counter = (counter + 1) % 2;
+      textNode.data = String(counter);
+    };
+  } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+    // Fallback to setImmediate.
+    // Techinically it leverages the (macro) task queue,
+    // but it is still a better choice than setTimeout.
+    timerFunc = function () {
+      setImmediate(flushCallbacks);
+    };
   } else {
-    // fallback to macro
-    microTimerFunc = macroTimerFunc;
-  }
-
-  /**
-   * Wrap a function so that if any code inside triggers state change,
-   * the changes are queued using a (macro) task instead of a microtask.
-   */
-  function withMacroTask (fn) {
-    return fn._withTask || (fn._withTask = function () {
-      useMacroTask = true;
-      try {
-        return fn.apply(null, arguments)
-      } finally {
-        useMacroTask = false;    
-      }
-    })
+    // Fallback to setTimeout.
+    timerFunc = function () {
+      setTimeout(flushCallbacks, 0);
+    };
   }
 
   function nextTick (cb, ctx) {
@@ -1936,11 +1968,7 @@
     });
     if (!pending) {
       pending = true;
-      if (useMacroTask) {
-        macroTimerFunc();
-      } else {
-        microTimerFunc();
-      }
+      timerFunc();
     }
     // $flow-disable-line
     if (!cb && typeof Promise !== 'undefined') {
@@ -2095,7 +2123,7 @@
         perf.measure(name, startTag, endTag);
         perf.clearMarks(startTag);
         perf.clearMarks(endTag);
-        perf.clearMeasures(name);
+        // perf.clearMeasures(name)
       };
     }
   }
@@ -2117,7 +2145,7 @@
     }
   });
 
-  function createFnInvoker (fns) {
+  function createFnInvoker (fns, vm) {
     function invoker () {
       var arguments$1 = arguments;
 
@@ -2125,11 +2153,11 @@
       if (Array.isArray(fns)) {
         var cloned = fns.slice();
         for (var i = 0; i < cloned.length; i++) {
-          cloned[i].apply(null, arguments$1);
+          invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
         }
       } else {
         // return handler return value for single handlers
-        return fns.apply(null, arguments)
+        return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
       }
     }
     invoker.fns = fns;
@@ -2156,7 +2184,7 @@
         );
       } else if (isUndef(old)) {
         if (isUndef(cur.fns)) {
-          cur = on[name] = createFnInvoker(cur);
+          cur = on[name] = createFnInvoker(cur, vm);
         }
         if (isTrue(event.once)) {
           cur = on[name] = createOnceHandler(event.name, cur, event.capture);
@@ -2452,12 +2480,12 @@
       var res = factory(resolve, reject);
 
       if (isObject(res)) {
-        if (typeof res.then === 'function') {
+        if (isPromise(res)) {
           // () => Promise
           if (isUndef(factory.resolved)) {
             res.then(resolve, reject);
           }
-        } else if (isDef(res.component) && typeof res.component.then === 'function') {
+        } else if (isPromise(res.component)) {
           res.component.then(resolve, reject);
 
           if (isDef(res.error)) {
@@ -2645,12 +2673,9 @@
       if (cbs) {
         cbs = cbs.length > 1 ? toArray(cbs) : cbs;
         var args = toArray(arguments, 1);
+        var info = "event handler for \"" + event + "\"";
         for (var i = 0, l = cbs.length; i < l; i++) {
-          try {
-            cbs[i].apply(vm, args);
-          } catch (e) {
-            handleError(e, vm, ("event handler for \"" + event + "\""));
-          }
+          invokeWithErrorHandling(cbs[i], vm, args, vm, info);
         }
       }
       return vm
@@ -2668,10 +2693,10 @@
     children,
     context
   ) {
-    var slots = {};
-    if (!children) {
-      return slots
+    if (!children || !children.length) {
+      return {}
     }
+    var slots = {};
     for (var i = 0, l = children.length; i < l; i++) {
       var child = children[i];
       var data = child.data;
@@ -2714,10 +2739,11 @@
   ) {
     res = res || {};
     for (var i = 0; i < fns.length; i++) {
-      if (Array.isArray(fns[i])) {
-        resolveScopedSlots(fns[i], res);
+      var slot = fns[i];
+      if (Array.isArray(slot)) {
+        resolveScopedSlots(slot, res);
       } else {
-        res[fns[i].key] = fns[i].fn;
+        res[slot.key] = slot.fn;
       }
     }
     return res
@@ -3030,13 +3056,10 @@
     // #7573 disable dep collection when invoking lifecycle hooks
     pushTarget();
     var handlers = vm.$options[hook];
+    var info = hook + " hook";
     if (handlers) {
       for (var i = 0, j = handlers.length; i < j; i++) {
-        try {
-          handlers[i].call(vm);
-        } catch (e) {
-          handleError(e, vm, (hook + " hook"));
-        }
+        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
       }
     }
     if (vm._hasHookEvent) {
@@ -3777,14 +3800,13 @@
       // inject is :any because flow is not smart enough to figure out cached
       var result = Object.create(null);
       var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
+        ? Reflect.ownKeys(inject)
         : Object.keys(inject);
 
       for (var i = 0; i < keys.length; i++) {
         var key = keys[i];
+        // #6574 in case the inject object is observed...
+        if (key === '__ob__') { continue }
         var provideKey = inject[key].from;
         var source = vm;
         while (source) {
@@ -3811,6 +3833,48 @@
 
   /*  */
 
+  function normalizeScopedSlots (
+    slots,
+    normalSlots
+  ) {
+    var res;
+    if (!slots) {
+      res = {};
+    } else if (slots._normalized) {
+      return slots
+    } else {
+      res = {};
+      for (var key in slots) {
+        if (slots[key]) {
+          res[key] = normalizeScopedSlot(slots[key]);
+        }
+      }
+    }
+    // expose normal slots on scopedSlots
+    for (var key$1 in normalSlots) {
+      if (!(key$1 in res)) {
+        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+      }
+    }
+    res._normalized = true;
+    return res
+  }
+
+  function normalizeScopedSlot(fn) {
+    return function (scope) {
+      var res = fn(scope);
+      return res && typeof res === 'object' && !Array.isArray(res)
+        ? [res] // single vnode
+        : normalizeChildren(res)
+    }
+  }
+
+  function proxyNormalSlot(slots, key) {
+    return function () { return slots[key]; }
+  }
+
+  /*  */
+
   /**
    * Runtime helper for rendering v-for lists.
    */
@@ -3830,11 +3894,21 @@
         ret[i] = render(i + 1, i);
       }
     } else if (isObject(val)) {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
+      if (hasSymbol && val[Symbol.iterator]) {
+        ret = [];
+        var iterator = val[Symbol.iterator]();
+        var result = iterator.next();
+        while (!result.done) {
+          ret.push(render(result.value, ret.length));
+          result = iterator.next();
+        }
+      } else {
+        keys = Object.keys(val);
+        ret = new Array(keys.length);
+        for (i = 0, l = keys.length; i < l; i++) {
+          key = keys[i];
+          ret[i] = render(val[key], key, i);
+        }
       }
     }
     if (!isDef(ret)) {
@@ -4115,13 +4189,20 @@
     this.injections = resolveInject(options.inject, parent);
     this.slots = function () { return resolveSlots(children, parent); };
 
+    Object.defineProperty(this, 'scopedSlots', ({
+      enumerable: true,
+      get: function get () {
+        return normalizeScopedSlots(data.scopedSlots, this.slots())
+      }
+    }));
+
     // support for compiled functional template
     if (isCompiled) {
       // exposing $options for renderStatic()
       this.$options = options;
       // pre-resolve slots for renderSlot()
       this.$slots = this.slots();
-      this.$scopedSlots = data.scopedSlots || emptyObject;
+      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
     }
 
     if (options._scopeId) {
@@ -4628,7 +4709,10 @@
       var _parentVnode = ref._parentVnode;
 
       if (_parentVnode) {
-        vm.$scopedSlots = _parentVnode.data.scopedSlots || emptyObject;
+        vm.$scopedSlots = normalizeScopedSlots(
+          _parentVnode.data.scopedSlots,
+          vm.$slots
+        );
       }
 
       // set parent vnode. this allows render functions to have access
@@ -4654,6 +4738,10 @@
           vnode = vm._vnode;
         }
       }
+      // if the returned array contains only a single node, allow it
+      if (Array.isArray(vnode) && vnode.length === 1) {
+        vnode = vnode[0];
+      }
       // return empty vnode in case the render function errored out
       if (!(vnode instanceof VNode)) {
         if (Array.isArray(vnode)) {
@@ -5120,6 +5208,12 @@
     Vue.delete = del;
     Vue.nextTick = nextTick;
 
+    // 2.6 explicit observable API
+    Vue.observable = function (obj) {
+      observe(obj);
+      return obj
+    };
+
     Vue.options = Object.create(null);
     ASSET_TYPES.forEach(function (type) {
       Vue.options[type + 's'] = Object.create(null);
@@ -5155,7 +5249,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.5.22';
+  Vue.version = '2.6.0-beta.1';
 
   /*  */
 
@@ -6569,14 +6663,28 @@
   }
 
   function add$1 (
-    event,
+    name,
     handler,
     capture,
     passive
   ) {
-    handler = withMacroTask(handler);
+    if (isChrome) {
+      // async edge case #6566: inner click event triggers patch, event handler
+      // attached to outer element during patch, and triggered again. This only
+      // happens in Chrome as it fires microtask ticks between event propagation.
+      // the solution is simple: we save the timestamp when a handler is attached,
+      // and the handler would only fire if the event passed to it was fired
+      // AFTER it was attached.
+      var now = performance.now();
+      var original = handler;
+      handler = original._wrapper = function (e) {
+        if (e.timeStamp >= now) {
+          return original.apply(this, arguments)
+        }
+      };
+    }
     target$1.addEventListener(
-      event,
+      name,
       handler,
       supportsPassive
         ? { capture: capture, passive: passive }
@@ -6585,14 +6693,14 @@
   }
 
   function remove$2 (
-    event,
+    name,
     handler,
     capture,
     _target
   ) {
     (_target || target$1).removeEventListener(
-      event,
-      handler._withTask || handler,
+      name,
+      handler._wrapper || handler,
       capture
     );
   }
@@ -6616,6 +6724,8 @@
 
   /*  */
 
+  var svgContainer;
+
   function updateDOMProps (oldVnode, vnode) {
     if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
       return
@@ -6649,6 +6759,17 @@
         }
       }
 
+      // #4521: if a click event triggers update before the change event is
+      // dispatched on a checkbox/radio input, the input's checked state will
+      // be reset and fail to trigger another update.
+      // The root cause here is that browsers may fire microtasks in between click/change.
+      // In Chrome / Firefox, click event fires before change, thus having this problem.
+      // In Safari / Edge, the order is opposite.
+      // Note: in Edge, if you click too fast, only the click event would fire twice.
+      if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+        continue
+      }
+
       if (key === 'value') {
         // store value as _value as well since
         // non-string values will be stringified
@@ -6658,6 +6779,17 @@
         if (shouldUpdateValue(elm, strCur)) {
           elm.value = strCur;
         }
+      } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+        // IE doesn't support innerHTML for SVG elements
+        svgContainer = svgContainer || document.createElement('div');
+        svgContainer.innerHTML = "<svg>" + cur + "</svg>";
+        var svg = svgContainer.firstChild;
+        while (elm.firstChild) {
+          elm.removeChild(elm.firstChild);
+        }
+        while (svg.firstChild) {
+          elm.appendChild(svg.firstChild);
+        }
       } else {
         elm[key] = cur;
       }
@@ -6689,10 +6821,6 @@
     var value = elm.value;
     var modifiers = elm._vModifiers; // injected by v-model runtime
     if (isDef(modifiers)) {
-      if (modifiers.lazy) {
-        // inputs with lazy should only be updated when not in focus
-        return false
-      }
       if (modifiers.number) {
         return toNumber(value) !== toNumber(newVal)
       }
@@ -8058,9 +8186,7 @@
       if (config.devtools) {
         if (devtools) {
           devtools.emit('init', Vue);
-        } else if (
-          isChrome
-        ) {
+        } else {
           console[console.info ? 'info' : 'log'](
             'Download the Vue Devtools extension for a better development experience:\n' +
             'https://github.com/vuejs/vue-devtools'
@@ -8083,4 +8209,4 @@
 
   return Vue;
 
-})));
+}));
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 9899fabbc24..0d91ba6ab8e 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.5.22
+ * Vue.js v2.6.0-beta.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return null==t?"":"object"==typeof t?JSON.stringify(t,null,2):String(t)}function l(t){var e=parseFloat(t);return isNaN(e)?t:e}function f(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var p=f("key,ref,slot,slot-scope,is");function d(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var v=Object.prototype.hasOwnProperty;function h(t,e){return v.call(t,e)}function m(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}var y=/-(\w)/g,g=m(function(t){return t.replace(y,function(t,e){return e?e.toUpperCase():""})}),_=m(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),b=/\B([A-Z])/g,C=m(function(t){return t.replace(b,"-$1").toLowerCase()});var w=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function $(t,e){for(var n in e)t[n]=e[n];return t}function x(t){for(var e={},n=0;n<t.length;n++)t[n]&&$(e,t[n]);return e}function k(t,e,n){}var O=function(t,e,n){return!1},S=function(t){return t};function j(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var o=Array.isArray(t),a=Array.isArray(e);if(o&&a)return t.length===e.length&&t.every(function(t,n){return j(t,e[n])});if(t instanceof Date&&e instanceof Date)return t.getTime()===e.getTime();if(o||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return j(t[n],e[n])})}catch(t){return!1}}function E(t,e){for(var n=0;n<t.length;n++)if(j(t[n],e))return n;return-1}function I(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}var T="data-server-rendered",D=["component","directive","filter"],N=["beforeCreate","created","beforeMount","mounted","beforeUpdate","updated","beforeDestroy","destroyed","activated","deactivated","errorCaptured"],P={optionMergeStrategies:Object.create(null),silent:!1,productionTip:!1,devtools:!1,performance:!1,errorHandler:null,warnHandler:null,ignoredElements:[],keyCodes:Object.create(null),isReservedTag:O,isReservedAttr:O,isUnknownElement:O,getTagNamespace:k,parsePlatformTagName:S,mustUseProp:O,async:!0,_lifecycleHooks:N};function L(t,e,n,r){Object.defineProperty(t,e,{value:n,enumerable:!!r,writable:!0,configurable:!0})}var M=/[^\w.$]/;var F,R="__proto__"in{},U="undefined"!=typeof window,V="undefined"!=typeof WXEnvironment&&!!WXEnvironment.platform,B=V&&WXEnvironment.platform.toLowerCase(),H=U&&window.navigator.userAgent.toLowerCase(),z=H&&/msie|trident/.test(H),W=H&&H.indexOf("msie 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t.tag||se(t)},go=function(t){return"show"===t.name},_o={name:"transition",props:po,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(yo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=vo(i);if(!a)return i;if(this._leaving)return mo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=ho(this),u=this._vnode,l=vo(u);if(a.data.directives&&a.data.directives.some(go)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!se(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),mo(t,i);if("in-out"===r){if(se(a))return u;var 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c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Co),t.forEach(Ao),t.forEach(wo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Br(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Fr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Fr,t),n._moveCb=null,zr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Nr)return!1;if(this._hasMove)return this._hasMove;var 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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 690dd5e30b0..b7fbffff1a0 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -1,8 +1,8 @@
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
   typeof define === 'function' && define.amd ? define(factory) :
-  (global.renderVueComponentToString = factory());
-}(this, (function () { 'use strict';
+  (global = global || self, global.renderVueComponentToString = factory());
+}(this, function () { 'use strict';
 
   /*  */
 
@@ -73,13 +73,21 @@
     return n >= 0 && Math.floor(n) === n && isFinite(val)
   }
 
+  function isPromise (val) {
+    return (
+      isDef(val) &&
+      typeof val.then === 'function' &&
+      typeof val.catch === 'function'
+    )
+  }
+
   /**
    * Convert a value to a string that is actually rendered.
    */
   function toString (val) {
     return val == null
       ? ''
-      : typeof val === 'object'
+      : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
         ? JSON.stringify(val, null, 2)
         : String(val)
   }
@@ -377,6 +385,51 @@
     return ESC[a] || a
   }
 
+  var noUnitNumericStyleProps = {
+    "animation-iteration-count": true,
+    "border-image-outset": true,
+    "border-image-slice": true,
+    "border-image-width": true,
+    "box-flex": true,
+    "box-flex-group": true,
+    "box-ordinal-group": true,
+    "column-count": true,
+    "columns": true,
+    "flex": true,
+    "flex-grow": true,
+    "flex-positive": true,
+    "flex-shrink": true,
+    "flex-negative": true,
+    "flex-order": true,
+    "grid-row": true,
+    "grid-row-end": true,
+    "grid-row-span": true,
+    "grid-row-start": true,
+    "grid-column": true,
+    "grid-column-end": true,
+    "grid-column-span": true,
+    "grid-column-start": true,
+    "font-weight": true,
+    "line-clamp": true,
+    "line-height": true,
+    "opacity": true,
+    "order": true,
+    "orphans": true,
+    "tab-size": true,
+    "widows": true,
+    "z-index": true,
+    "zoom": true,
+    // SVG
+    "fill-opacity": true,
+    "flood-opacity": true,
+    "stop-opacity": true,
+    "stroke-dasharray": true,
+    "stroke-dashoffset": true,
+    "stroke-miterlimit": true,
+    "stroke-opacity": true,
+    "stroke-width": true
+  };
+
   /*  */
 
   // these are reserved for web because they are directly compiled away
@@ -594,6 +647,13 @@
 
   /*  */
 
+  /**
+   * unicode letters used for parsing html tags, component names and property paths.
+   * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+   * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+   */
+  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
   /**
    * Define a property.
    */
@@ -622,6 +682,7 @@
   var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+  var isPhantomJS = UA && /phantomjs/.test(UA);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -709,7 +770,8 @@
     'destroyed',
     'activated',
     'deactivated',
-    'errorCaptured'
+    'errorCaptured',
+    'ssrPrefetch'
   ];
 
   /*  */
@@ -1253,9 +1315,15 @@
   function mergeData (to, from) {
     if (!from) { return to }
     var key, toVal, fromVal;
-    var keys = Object.keys(from);
+
+    var keys = hasSymbol
+      ? Reflect.ownKeys(from)
+      : Object.keys(from);
+
     for (var i = 0; i < keys.length; i++) {
       key = keys[i];
+      // in case the object is already observed...
+      if (key === '__ob__') { continue }
       toVal = to[key];
       fromVal = from[key];
       if (!hasOwn(to, key)) {
@@ -1475,11 +1543,10 @@
   }
 
   function validateComponentName (name) {
-    if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
       warn(
         'Invalid component name: "' + name + '". Component names ' +
-        'can only contain alphanumeric characters and the hyphen, ' +
-        'and must start with a letter.'
+        'should conform to valid custom element name in html5 specification.'
       );
     }
     if (isBuiltInTag(name) || config.isReservedTag(name)) {
@@ -1562,9 +1629,9 @@
     var dirs = options.directives;
     if (dirs) {
       for (var key in dirs) {
-        var def = dirs[key];
-        if (typeof def === 'function') {
-          dirs[key] = { bind: def, update: def };
+        var def$$1 = dirs[key];
+        if (typeof def$$1 === 'function') {
+          dirs[key] = { bind: def$$1, update: def$$1 };
         }
       }
     }
@@ -1910,6 +1977,25 @@
     globalHandleError(err, vm, info);
   }
 
+  function invokeWithErrorHandling (
+    handler,
+    context,
+    args,
+    vm,
+    info
+  ) {
+    var res;
+    try {
+      res = args ? handler.apply(context, args) : handler.call(context);
+      if (isPromise(res)) {
+        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      }
+    } catch (e) {
+      handleError(e, vm, info);
+    }
+    return res
+  }
+
   function globalHandleError (err, vm, info) {
     logError(err, vm, info);
   }
@@ -1938,23 +2024,28 @@
     }
   }
 
-  // Determine (macro) task defer implementation.
-  // Technically setImmediate should be the ideal choice, but it's only available
-  // in IE. The only polyfill that consistently queues the callback after all DOM
-  // events triggered in the same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    channel.port1.onmessage = flushCallbacks;
-  }
-
-  // Determine microtask defer implementation.
+  // The nextTick behavior leverages the microtask queue, which can be accessed
+  // via either native Promise.then or MutationObserver.
+  // MutationObserver has wider support, however it is seriously bugged in
+  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+  // completely stops working after triggering a few times... so, if native
+  // Promise is available, we will use it:
   /* istanbul ignore next, $flow-disable-line */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) ;
+  if (typeof Promise !== 'undefined' && isNative(Promise)) ; else if (!isIE && typeof MutationObserver !== 'undefined' && (
+    isNative(MutationObserver) ||
+    // PhantomJS and iOS 7.x
+    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  )) {
+    // Use MutationObserver where native Promise is not available,
+    // e.g. PhantomJS, iOS7, Android 4.4
+    // (#6466 MutationObserver is unreliable in IE11)
+    var counter = 1;
+    var observer = new MutationObserver(flushCallbacks);
+    var textNode = document.createTextNode(String(counter));
+    observer.observe(textNode, {
+      characterData: true
+    });
+  } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ;
 
   /*  */
 
@@ -2173,15 +2264,28 @@
       var hyphenatedKey = hyphenate(key);
       if (Array.isArray(value)) {
         for (var i = 0, len = value.length; i < len; i++) {
-          styleText += hyphenatedKey + ":" + (value[i]) + ";";
+          styleText += normalizeValue(hyphenatedKey, value[i]);
         }
       } else {
-        styleText += hyphenatedKey + ":" + value + ";";
+        styleText += normalizeValue(hyphenatedKey, value);
       }
     }
     return styleText
   }
 
+  function normalizeValue(key, value) {
+    if (
+      typeof value === 'string' ||
+      (typeof value === 'number' && noUnitNumericStyleProps[key]) ||
+      value === 0
+    ) {
+      return (key + ":" + value + ";")
+    } else {
+      // invalid values
+      return ""
+    }
+  }
+
   function renderStyle (vnode) {
     var styleText = genStyle(getStyle(vnode, false));
     if (styleText !== '') {
@@ -2574,9 +2678,13 @@
 
   /*  */
 
-  function baseWarn (msg) {
+
+
+  /* eslint-disable no-unused-vars */
+  function baseWarn (msg, range) {
     console.error(("[Vue compiler]: " + msg));
   }
+  /* eslint-enable no-unused-vars */
 
   function pluckModuleFunction (
     modules,
@@ -2587,20 +2695,20 @@
       : []
   }
 
-  function addProp (el, name, value) {
-    (el.props || (el.props = [])).push({ name: name, value: value });
+  function addProp (el, name, value, range) {
+    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
     el.plain = false;
   }
 
-  function addAttr (el, name, value) {
-    (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  function addAttr (el, name, value, range) {
+    (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
     el.plain = false;
   }
 
   // add a raw attr (use this in preTransforms)
-  function addRawAttr (el, name, value) {
+  function addRawAttr (el, name, value, range) {
     el.attrsMap[name] = value;
-    el.attrsList.push({ name: name, value: value });
+    el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
   }
 
   function addDirective (
@@ -2609,9 +2717,10 @@
     rawName,
     value,
     arg,
-    modifiers
+    modifiers,
+    range
   ) {
-    (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+    (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
     el.plain = false;
   }
 
@@ -2621,7 +2730,8 @@
     value,
     modifiers,
     important,
-    warn
+    warn,
+    range
   ) {
     modifiers = modifiers || emptyObject;
     // warn prevent and passive modifier
@@ -2632,7 +2742,8 @@
     ) {
       warn(
         'passive and prevent can\'t be used together. ' +
-        'Passive handler can\'t prevent default event.'
+        'Passive handler can\'t prevent default event.',
+        range
       );
     }
 
@@ -2671,9 +2782,7 @@
       events = el.events || (el.events = {});
     }
 
-    var newHandler = {
-      value: value.trim()
-    };
+    var newHandler = rangeSetItem({ value: value.trim() }, range);
     if (modifiers !== emptyObject) {
       newHandler.modifiers = modifiers;
     }
@@ -2691,6 +2800,15 @@
     el.plain = false;
   }
 
+  function getRawBindingAttr (
+    el,
+    name
+  ) {
+    return el.rawAttrsMap[':' + name] ||
+      el.rawAttrsMap['v-bind:' + name] ||
+      el.rawAttrsMap[name]
+  }
+
   function getBindingAttr (
     el,
     name,
@@ -2734,6 +2852,21 @@
     return val
   }
 
+  function rangeSetItem (
+    item,
+    range
+  ) {
+    if (range) {
+      if (range.start != null) {
+        item.start = range.start;
+      }
+      if (range.end != null) {
+        item.end = range.end;
+      }
+    }
+    return item
+  }
+
   /*  */
 
   function transformNode (el, options) {
@@ -2746,7 +2879,8 @@
           "class=\"" + staticClass + "\": " +
           'Interpolation inside attributes has been removed. ' +
           'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div class="{{ val }}">, use <div :class="val">.'
+          'instead of <div class="{{ val }}">, use <div :class="val">.',
+          el.rawAttrsMap['class']
         );
       }
     }
@@ -2790,7 +2924,8 @@
             "style=\"" + staticStyle + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div style="{{ val }}">, use <div :style="val">.'
+            'instead of <div style="{{ val }}">, use <div :style="val">.',
+            el.rawAttrsMap['style']
           );
         }
       }
@@ -3171,9 +3306,7 @@
 
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-  // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-  // but for Vue templates we can enforce a simple charset
-  var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
   var startTagClose = /^\s*(\/?)>/;
@@ -3226,7 +3359,7 @@
 
             if (commentEnd >= 0) {
               if (options.shouldKeepComment) {
-                options.comment(html.substring(4, commentEnd));
+                options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
               }
               advance(commentEnd + 3);
               continue
@@ -3286,16 +3419,18 @@
             rest = html.slice(textEnd);
           }
           text = html.substring(0, textEnd);
-          advance(textEnd);
         }
 
         if (textEnd < 0) {
           text = html;
-          html = '';
+        }
+
+        if (text) {
+          advance(text.length);
         }
 
         if (options.chars && text) {
-          options.chars(text);
+          options.chars(text, index - text.length, index);
         }
       } else {
         var endTagLength = 0;
@@ -3324,7 +3459,7 @@
       if (html === last) {
         options.chars && options.chars(html);
         if (!stack.length && options.warn) {
-          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
         }
         break
       }
@@ -3349,7 +3484,9 @@
         advance(start[0].length);
         var end, attr;
         while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+          attr.start = index;
           advance(attr[0].length);
+          attr.end = index;
           match.attrs.push(attr);
         }
         if (end) {
@@ -3388,10 +3525,14 @@
           name: args[1],
           value: decodeAttr(value, shouldDecodeNewlines)
         };
+        if (options.outputSourceRange) {
+          attrs[i].start = args.start + args[0].match(/^\s*/).length;
+          attrs[i].end = args.end;
+        }
       }
 
       if (!unary) {
-        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
         lastTag = tagName;
       }
 
@@ -3425,7 +3566,8 @@
             options.warn
           ) {
             options.warn(
-              ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+              ("tag <" + (stack[i].tag) + "> has no matching end tag."),
+              { start: stack[i].start }
             );
           }
           if (options.end) {
@@ -3602,15 +3744,19 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:/;
+  var dirRE = /^v-|^@|^:|^\./;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
 
   var argRE = /:(.*)$/;
-  var bindRE = /^:|^v-bind:/;
+  var bindRE = /^:|^\.|^v-bind:/;
+  var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
+  var lineBreakRE = /[\r\n]/;
+  var whitespaceRE = /\s+/g;
+
   var decodeHTMLCached = cached(he.decode);
 
   // configurable state
@@ -3623,8 +3769,6 @@
   var platformMustUseProp;
   var platformGetTagNamespace;
 
-
-
   function createASTElement (
     tag,
     attrs,
@@ -3635,6 +3779,7 @@
       tag: tag,
       attrsList: attrs,
       attrsMap: makeAttrsMap(attrs),
+      rawAttrsMap: {},
       parent: parent,
       children: []
     }
@@ -3652,6 +3797,7 @@
     platformIsPreTag = options.isPreTag || no;
     platformMustUseProp = options.mustUseProp || no;
     platformGetTagNamespace = options.getTagNamespace || no;
+    var isReservedTag = options.isReservedTag || no;
 
     transforms = pluckModuleFunction(options.modules, 'transformNode');
     preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -3661,20 +3807,55 @@
 
     var stack = [];
     var preserveWhitespace = options.preserveWhitespace !== false;
+    var whitespaceOption = options.whitespace;
     var root;
     var currentParent;
     var inVPre = false;
     var inPre = false;
     var warned = false;
 
-    function warnOnce (msg) {
+    function warnOnce (msg, range) {
       if (!warned) {
         warned = true;
-        warn$1(msg);
+        warn$1(msg, range);
       }
     }
 
     function closeElement (element) {
+      if (!inVPre && !element.processed) {
+        element = processElement(element, options);
+      }
+      // tree management
+      if (!stack.length && element !== root) {
+        // allow root elements with v-if, v-else-if and v-else
+        if (root.if && (element.elseif || element.else)) {
+          {
+            checkRootConstraints(element);
+          }
+          addIfCondition(root, {
+            exp: element.elseif,
+            block: element
+          });
+        } else {
+          warnOnce(
+            "Component template should contain exactly one root element. " +
+            "If you are using v-if on multiple elements, " +
+            "use v-else-if to chain them instead.",
+            { start: element.start }
+          );
+        }
+      }
+      if (currentParent && !element.forbidden) {
+        if (element.elseif || element.else) {
+          processIfConditions(element, currentParent);
+        } else if (element.slotScope) { // scoped slot
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        } else {
+          currentParent.children.push(element);
+          element.parent = currentParent;
+        }
+      }
       // check pre state
       if (element.pre) {
         inVPre = false;
@@ -3688,6 +3869,23 @@
       }
     }
 
+    function checkRootConstraints (el) {
+      if (el.tag === 'slot' || el.tag === 'template') {
+        warnOnce(
+          "Cannot use <" + (el.tag) + "> as component root element because it may " +
+          'contain multiple nodes.',
+          { start: el.start }
+        );
+      }
+      if (el.attrsMap.hasOwnProperty('v-for')) {
+        warnOnce(
+          'Cannot use v-for on stateful component root element because ' +
+          'it renders multiple elements.',
+          el.rawAttrsMap['v-for']
+        );
+      }
+    }
+
     parseHTML(template, {
       warn: warn$1,
       expectHTML: options.expectHTML,
@@ -3696,7 +3894,8 @@
       shouldDecodeNewlines: options.shouldDecodeNewlines,
       shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
       shouldKeepComment: options.comments,
-      start: function start (tag, attrs, unary) {
+      outputSourceRange: options.outputSourceRange,
+      start: function start (tag, attrs, unary, start$1) {
         // check namespace.
         // inherit parent ns if there is one
         var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -3712,12 +3911,21 @@
           element.ns = ns;
         }
 
+        if (options.outputSourceRange) {
+          element.start = start$1;
+          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+
         if (isForbiddenTag(element) && !isServerRendering()) {
           element.forbidden = true;
           warn$1(
             'Templates should only be responsible for mapping the state to the ' +
             'UI. Avoid placing tags with side-effects in your templates, such as ' +
-            "<" + tag + ">" + ', as they will not be parsed.'
+            "<" + tag + ">" + ', as they will not be parsed.',
+            { start: element.start }
           );
         }
 
@@ -3742,59 +3950,15 @@
           processFor(element);
           processIf(element);
           processOnce(element);
-          // element-scope stuff
-          processElement(element, options);
-        }
-
-        function checkRootConstraints (el) {
-          {
-            if (el.tag === 'slot' || el.tag === 'template') {
-              warnOnce(
-                "Cannot use <" + (el.tag) + "> as component root element because it may " +
-                'contain multiple nodes.'
-              );
-            }
-            if (el.attrsMap.hasOwnProperty('v-for')) {
-              warnOnce(
-                'Cannot use v-for on stateful component root element because ' +
-                'it renders multiple elements.'
-              );
-            }
-          }
         }
 
-        // tree management
         if (!root) {
           root = element;
-          checkRootConstraints(root);
-        } else if (!stack.length) {
-          // allow root elements with v-if, v-else-if and v-else
-          if (root.if && (element.elseif || element.else)) {
-            checkRootConstraints(element);
-            addIfCondition(root, {
-              exp: element.elseif,
-              block: element
-            });
-          } else {
-            warnOnce(
-              "Component template should contain exactly one root element. " +
-              "If you are using v-if on multiple elements, " +
-              "use v-else-if to chain them instead."
-            );
-          }
-        }
-        if (currentParent && !element.forbidden) {
-          if (element.elseif || element.else) {
-            processIfConditions(element, currentParent);
-          } else if (element.slotScope) { // scoped slot
-            currentParent.plain = false;
-            var name = element.slotTarget || '"default"'
-            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-          } else {
-            currentParent.children.push(element);
-            element.parent = currentParent;
+          {
+            checkRootConstraints(root);
           }
         }
+
         if (!unary) {
           currentParent = element;
           stack.push(element);
@@ -3803,29 +3967,36 @@
         }
       },
 
-      end: function end () {
-        // remove trailing whitespace
+      end: function end (tag, start, end$1) {
         var element = stack[stack.length - 1];
-        var lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-          element.children.pop();
+        if (!inPre) {
+          // remove trailing whitespace node
+          var lastNode = element.children[element.children.length - 1];
+          if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+            element.children.pop();
+          }
         }
         // pop stack
         stack.length -= 1;
         currentParent = stack[stack.length - 1];
+        if (options.outputSourceRange) {
+          element.end = end$1;
+        }
         closeElement(element);
       },
 
-      chars: function chars (text) {
+      chars: function chars (text, start, end) {
         if (!currentParent) {
           {
             if (text === template) {
               warnOnce(
-                'Component template requires a root element, rather than just text.'
+                'Component template requires a root element, rather than just text.',
+                { start: start }
               );
             } else if ((text = text.trim())) {
               warnOnce(
-                ("text \"" + text + "\" outside root element will be ignored.")
+                ("text \"" + text + "\" outside root element will be ignored."),
+                { start: start }
               );
             }
           }
@@ -3840,33 +4011,62 @@
           return
         }
         var children = currentParent.children;
-        text = inPre || text.trim()
-          ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-          // only preserve whitespace if its not right after a starting tag
-          : preserveWhitespace && children.length ? ' ' : '';
+        if (inPre || text.trim()) {
+          text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+        } else if (!children.length) {
+          // remove the whitespace-only node right after an opening tag
+          text = '';
+        } else if (whitespaceOption) {
+          if (whitespaceOption === 'condense') {
+            // in condense mode, remove the whitespace node if it contains
+            // line break, otherwise condense to a single space
+            text = lineBreakRE.test(text) ? '' : ' ';
+          } else {
+            text = ' ';
+          }
+        } else {
+          text = preserveWhitespace ? ' ' : '';
+        }
         if (text) {
+          if (whitespaceOption === 'condense') {
+            // condense consecutive whitespaces into single space
+            text = text.replace(whitespaceRE, ' ');
+          }
           var res;
+          var child;
           if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-            children.push({
+            child = {
               type: 2,
               expression: res.expression,
               tokens: res.tokens,
               text: text
-            });
+            };
           } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-            children.push({
+            child = {
               type: 3,
               text: text
-            });
+            };
+          }
+          if (child) {
+            if (options.outputSourceRange) {
+              child.start = start;
+              child.end = end;
+            }
+            children.push(child);
           }
         }
       },
-      comment: function comment (text) {
-        currentParent.children.push({
+      comment: function comment (text, start, end) {
+        var child = {
           type: 3,
           text: text,
           isComment: true
-        });
+        };
+        if (options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
     });
     return root
@@ -3879,14 +4079,19 @@
   }
 
   function processRawAttrs (el) {
-    var l = el.attrsList.length;
-    if (l) {
-      var attrs = el.attrs = new Array(l);
-      for (var i = 0; i < l; i++) {
+    var list = el.attrsList;
+    var len = list.length;
+    if (len) {
+      var attrs = el.attrs = new Array(len);
+      for (var i = 0; i < len; i++) {
         attrs[i] = {
-          name: el.attrsList[i].name,
-          value: JSON.stringify(el.attrsList[i].value)
+          name: list[i].name,
+          value: JSON.stringify(list[i].value)
         };
+        if (list[i].start != null) {
+          attrs[i].start = list[i].start;
+          attrs[i].end = list[i].end;
+        }
       }
     } else if (!el.pre) {
       // non root node in pre blocks with no attributes
@@ -3894,20 +4099,29 @@
     }
   }
 
-  function processElement (element, options) {
+  function processElement (
+    element,
+    options
+  ) {
     processKey(element);
 
     // determine whether this is a plain element after
     // removing structural attributes
-    element.plain = !element.key && !element.attrsList.length;
+    element.plain = (
+      !element.key &&
+      !element.scopedSlots &&
+      !element.attrsList.length
+    );
 
     processRef(element);
-    processSlot(element);
+    processSlotContent(element);
+    processSlotOutlet(element);
     processComponent(element);
     for (var i = 0; i < transforms.length; i++) {
       element = transforms[i](element, options) || element;
     }
     processAttrs(element);
+    return element
   }
 
   function processKey (el) {
@@ -3915,7 +4129,10 @@
     if (exp) {
       {
         if (el.tag === 'template') {
-          warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+          warn$1(
+            "<template> cannot be keyed. Place the key on real elements instead.",
+            getRawBindingAttr(el, 'key')
+          );
         }
         if (el.for) {
           var iterator = el.iterator2 || el.iterator1;
@@ -3923,7 +4140,9 @@
           if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
             warn$1(
               "Do not use v-for index as key on <transition-group> children, " +
-              "this is the same as not using keys."
+              "this is the same as not using keys.",
+              getRawBindingAttr(el, 'key'),
+              true /* tip */
             );
           }
         }
@@ -3948,7 +4167,8 @@
         extend(el, res);
       } else {
         warn$1(
-          ("Invalid v-for expression: " + exp)
+          ("Invalid v-for expression: " + exp),
+          el.rawAttrsMap['v-for']
         );
       }
     }
@@ -4004,7 +4224,8 @@
     } else {
       warn$1(
         "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-        "used on element <" + (el.tag) + "> without corresponding v-if."
+        "used on element <" + (el.tag) + "> without corresponding v-if.",
+        el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
       );
     }
   }
@@ -4018,7 +4239,8 @@
         if (children[i].text !== ' ') {
           warn$1(
             "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-            "will be ignored."
+            "will be ignored.",
+            children[i]
           );
         }
         children.pop();
@@ -4040,52 +4262,65 @@
     }
   }
 
-  function processSlot (el) {
+  // handle content being passed to a component as slot,
+  // e.g. <template slot="xxx">, <div slot-scope="xxx">
+  function processSlotContent (el) {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (slotScope) {
+        warn$1(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          el.rawAttrsMap['scope'],
+          true
+        );
+      }
+      el.slotScope = (
+        slotScope ||
+        getAndRemoveAttr(el, 'slot-scope')
+      );
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (el.attrsMap['v-for']) {
+        warn$1(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          el.rawAttrsMap['slot-scope'],
+          true
+        );
+      }
+      el.slotScope = slotScope;
+    }
+
+    // slot="xxx"
+    var slotTarget = getBindingAttr(el, 'slot');
+    if (slotTarget) {
+      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      // only for non-scoped slots.
+      if (el.tag !== 'template' && !el.slotScope) {
+        addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+      }
+    }
+  }
+
+  // handle <slot/> outlets
+  function processSlotOutlet (el) {
     if (el.tag === 'slot') {
       el.slotName = getBindingAttr(el, 'name');
       if (el.key) {
         warn$1(
           "`key` does not work on <slot> because slots are abstract outlets " +
           "and can possibly expand into multiple elements. " +
-          "Use the key on a wrapping element instead."
+          "Use the key on a wrapping element instead.",
+          getRawBindingAttr(el, 'key')
         );
       }
-    } else {
-      var slotScope;
-      if (el.tag === 'template') {
-        slotScope = getAndRemoveAttr(el, 'scope');
-        /* istanbul ignore if */
-        if (slotScope) {
-          warn$1(
-            "the \"scope\" attribute for scoped slots have been deprecated and " +
-            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-            "can also be used on plain elements in addition to <template> to " +
-            "denote scoped slots.",
-            true
-          );
-        }
-        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-        /* istanbul ignore if */
-        if (el.attrsMap['v-for']) {
-          warn$1(
-            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-            "(v-for takes higher priority). Use a wrapper <template> for the " +
-            "scoped slot to make it clearer.",
-            true
-          );
-        }
-        el.slotScope = slotScope;
-      }
-      var slotTarget = getBindingAttr(el, 'slot');
-      if (slotTarget) {
-        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-        // preserve slot as an attribute for native shadow DOM compat
-        // only for non-scoped slots.
-        if (el.tag !== 'template' && !el.slotScope) {
-          addAttr(el, 'slot', slotTarget);
-        }
-      }
     }
   }
 
@@ -4101,7 +4336,7 @@
 
   function processAttrs (el) {
     var list = el.attrsList;
-    var i, l, name, rawName, value, modifiers, isProp;
+    var i, l, name, rawName, value, modifiers, isProp, syncGen;
     for (i = 0, l = list.length; i < l; i++) {
       name = rawName = list[i].name;
       value = list[i].value;
@@ -4109,8 +4344,12 @@
         // mark element as dynamic
         el.hasBindings = true;
         // modifiers
-        modifiers = parseModifiers(name);
-        if (modifiers) {
+        modifiers = parseModifiers(name.replace(dirRE, ''));
+        // support .foo shorthand syntax for the .prop modifier
+        if (propBindRE.test(name)) {
+          (modifiers || (modifiers = {})).prop = true;
+          name = "." + name.slice(1).replace(modifierRE, '');
+        } else if (modifiers) {
           name = name.replace(modifierRE, '');
         }
         if (bindRE.test(name)) { // v-bind
@@ -4134,23 +4373,39 @@
               name = camelize(name);
             }
             if (modifiers.sync) {
+              syncGen = genAssignmentCode(value, "$event");
               addHandler(
                 el,
                 ("update:" + (camelize(name))),
-                genAssignmentCode(value, "$event")
+                syncGen,
+                null,
+                false,
+                warn$1,
+                list[i]
               );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  ("update:" + (hyphenate(name))),
+                  syncGen,
+                  null,
+                  false,
+                  warn$1,
+                  list[i]
+                );
+              }
             }
           }
           if (isProp || (
             !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
           )) {
-            addProp(el, name, value);
+            addProp(el, name, value, list[i]);
           } else {
-            addAttr(el, name, value);
+            addAttr(el, name, value, list[i]);
           }
         } else if (onRE.test(name)) { // v-on
           name = name.replace(onRE, '');
-          addHandler(el, name, value, modifiers, false, warn$1);
+          addHandler(el, name, value, modifiers, false, warn$1, list[i]);
         } else { // normal directives
           name = name.replace(dirRE, '');
           // parse arg
@@ -4159,7 +4414,7 @@
           if (arg) {
             name = name.slice(0, -(arg.length + 1));
           }
-          addDirective(el, name, rawName, value, arg, modifiers);
+          addDirective(el, name, rawName, value, arg, modifiers, list[i]);
           if (name === 'model') {
             checkForAliasModel(el, value);
           }
@@ -4173,17 +4428,18 @@
               name + "=\"" + value + "\": " +
               'Interpolation inside attributes has been removed. ' +
               'Use v-bind or the colon shorthand instead. For example, ' +
-              'instead of <div id="{{ val }}">, use <div :id="val">.'
+              'instead of <div id="{{ val }}">, use <div :id="val">.',
+              list[i]
             );
           }
         }
-        addAttr(el, name, JSON.stringify(value));
+        addAttr(el, name, JSON.stringify(value), list[i]);
         // #6887 firefox doesn't update muted state if set via attribute
         // even immediately after element creation
         if (!el.component &&
             name === 'muted' &&
             platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-          addProp(el, name, 'true');
+          addProp(el, name, 'true', list[i]);
         }
       }
     }
@@ -4215,7 +4471,7 @@
       if (
         map[attrs[i].name] && !isIE && !isEdge
       ) {
-        warn$1('duplicate attribute: ' + attrs[i].name);
+        warn$1('duplicate attribute: ' + attrs[i].name, attrs[i]);
       }
       map[attrs[i].name] = attrs[i].value;
     }
@@ -4262,7 +4518,8 @@
           "You are binding v-model directly to a v-for iteration alias. " +
           "This will not be able to modify the v-for source array because " +
           "writing to the alias is like modifying a function local variable. " +
-          "Consider using an array of objects and use v-model on an object property instead."
+          "Consider using an array of objects and use v-model on an object property instead.",
+          el.rawAttrsMap['v-model']
         );
       }
       _el = _el.parent;
@@ -4372,7 +4629,8 @@
       if (tag === 'input' && type === 'file') {
         warn$2(
           "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-          "File inputs are read only. Use a v-on:change listener instead."
+          "File inputs are read only. Use a v-on:change listener instead.",
+          el.rawAttrsMap['v-model']
         );
       }
     }
@@ -4475,7 +4733,8 @@
         var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
         warn$2(
           binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-          'because the latter already expands to a value binding internally'
+          'because the latter already expands to a value binding internally',
+          el.rawAttrsMap[binding]
         );
       }
     }
@@ -4515,7 +4774,7 @@
 
   function text (el, dir) {
     if (dir.value) {
-      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
     }
   }
 
@@ -4523,7 +4782,7 @@
 
   function html (el, dir) {
     if (dir.value) {
-      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
     }
   }
 
@@ -4551,6 +4810,7 @@
   /*  */
 
   var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
   // KeyboardEvent.keyCode aliases
@@ -4626,12 +4886,13 @@
 
     var isMethodPath = simplePathRE.test(handler.value);
     var isFunctionExpression = fnExpRE.test(handler.value);
+    var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
 
     if (!handler.modifiers) {
       if (isMethodPath || isFunctionExpression) {
         return handler.value
       }
-      return ("function($event){" + (handler.value) + "}") // inline statement
+      return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
     } else {
       var code = '';
       var genModifierCode = '';
@@ -4666,7 +4927,9 @@
         ? ("return " + (handler.value) + "($event)")
         : isFunctionExpression
           ? ("return (" + (handler.value) + ")($event)")
-          : handler.value;
+          : isFunctionInvocation
+            ? ("return " + (handler.value))
+            : handler.value;
       return ("function($event){" + code + handlerCode + "}")
     }
   }
@@ -4730,7 +4993,7 @@
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
     this.directives = extend(extend({}, baseDirectives), options.directives);
     var isReservedTag = options.isReservedTag || no;
-    this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+    this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
     this.onceId = 0;
     this.staticRenderFns = [];
     this.pre = false;
@@ -4821,7 +5084,8 @@
       }
       if (!key) {
         state.warn(
-          "v-once can only be used inside v-for that is keyed. "
+          "v-once can only be used inside v-for that is keyed. ",
+          el.rawAttrsMap['v-once']
         );
         return genElement(el, state)
       }
@@ -4888,6 +5152,7 @@
         "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
         "v-for should have explicit keys. " +
         "See https://vuejs.org/guide/list.html#key for more info.",
+        el.rawAttrsMap['v-for'],
         true /* tip */
       );
     }
@@ -5005,7 +5270,10 @@
   function genInlineTemplate (el, state) {
     var ast = el.children[0];
     if (el.children.length !== 1 || ast.type !== 1) {
-      state.warn('Inline-template components must have exactly one child element.');
+      state.warn(
+        'Inline-template components must have exactly one child element.',
+        { start: el.start }
+      );
     }
     if (ast.type === 1) {
       var inlineRenderFns = generate(ast, state.options);
@@ -5187,8 +5455,6 @@
 
 
 
-
-
   var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
   // let the model AST transform translate v-model into appropriate
@@ -5369,6 +5635,7 @@
           tag: 'template',
           attrsList: [],
           attrsMap: {},
+          rawAttrsMap: {},
           children: currentOptimizableGroup,
           ssrOptimizability: optimizability.FULL
         });
@@ -5656,6 +5923,8 @@
 
   /*  */
 
+
+
   // these keywords should not appear inside expressions, but operators like
   // typeof, instanceof and in are allowed
   var prohibitedKeywordRE = new RegExp('\\b' + (
@@ -5673,89 +5942,92 @@
   var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
   // detect problematic expressions in a template
-  function detectErrors (ast) {
-    var errors = [];
+  function detectErrors (ast, warn) {
     if (ast) {
-      checkNode(ast, errors);
+      checkNode(ast, warn);
     }
-    return errors
   }
 
-  function checkNode (node, errors) {
+  function checkNode (node, warn) {
     if (node.type === 1) {
       for (var name in node.attrsMap) {
         if (dirRE.test(name)) {
           var value = node.attrsMap[name];
           if (value) {
+            var range = node.rawAttrsMap[name];
             if (name === 'v-for') {
-              checkFor(node, ("v-for=\"" + value + "\""), errors);
+              checkFor(node, ("v-for=\"" + value + "\""), warn, range);
             } else if (onRE.test(name)) {
-              checkEvent(value, (name + "=\"" + value + "\""), errors);
+              checkEvent(value, (name + "=\"" + value + "\""), warn, range);
             } else {
-              checkExpression(value, (name + "=\"" + value + "\""), errors);
+              checkExpression(value, (name + "=\"" + value + "\""), warn, range);
             }
           }
         }
       }
       if (node.children) {
         for (var i = 0; i < node.children.length; i++) {
-          checkNode(node.children[i], errors);
+          checkNode(node.children[i], warn);
         }
       }
     } else if (node.type === 2) {
-      checkExpression(node.expression, node.text, errors);
+      checkExpression(node.expression, node.text, warn, node);
     }
   }
 
-  function checkEvent (exp, text, errors) {
+  function checkEvent (exp, text, warn, range) {
     var stipped = exp.replace(stripStringRE, '');
     var keywordMatch = stipped.match(unaryOperatorsRE);
     if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-      errors.push(
+      warn(
         "avoid using JavaScript unary operator as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
+        range
       );
     }
-    checkExpression(exp, text, errors);
+    checkExpression(exp, text, warn, range);
   }
 
-  function checkFor (node, text, errors) {
-    checkExpression(node.for || '', text, errors);
-    checkIdentifier(node.alias, 'v-for alias', text, errors);
-    checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-    checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+  function checkFor (node, text, warn, range) {
+    checkExpression(node.for || '', text, warn, range);
+    checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+    checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+    checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
   }
 
   function checkIdentifier (
     ident,
     type,
     text,
-    errors
+    warn,
+    range
   ) {
     if (typeof ident === 'string') {
       try {
         new Function(("var " + ident + "=_"));
       } catch (e) {
-        errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+        warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
       }
     }
   }
 
-  function checkExpression (exp, text, errors) {
+  function checkExpression (exp, text, warn, range) {
     try {
       new Function(("return " + exp));
     } catch (e) {
       var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
       if (keywordMatch) {
-        errors.push(
+        warn(
           "avoid using JavaScript keyword as property name: " +
-          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
+          range
         );
       } else {
-        errors.push(
+        warn(
           "invalid expression: " + (e.message) + " in\n\n" +
           "    " + exp + "\n\n" +
-          "  Raw expression: " + (text.trim()) + "\n"
+          "  Raw expression: " + (text.trim()) + "\n",
+          range
         );
       }
     }
@@ -5763,6 +6035,58 @@
 
   /*  */
 
+  var range = 2;
+
+  function generateCodeFrame (
+    source,
+    start,
+    end
+  ) {
+    if ( start === void 0 ) start = 0;
+    if ( end === void 0 ) end = source.length;
+
+    var lines = source.split(/\r?\n/);
+    var count = 0;
+    var res = [];
+    for (var i = 0; i < lines.length; i++) {
+      count += lines[i].length + 1;
+      if (count >= start) {
+        for (var j = i - range; j <= i + range || end > count; j++) {
+          if (j < 0 || j >= lines.length) { continue }
+          res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
+          var lineLength = lines[j].length;
+          if (j === i) {
+            // push underline
+            var pad = start - (count - lineLength) + 1;
+            var length = end > count ? lineLength - pad : end - start;
+            res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
+          } else if (j > i) {
+            if (end > count) {
+              var length$1 = Math.min(end - count, lineLength);
+              res.push("   |  " + repeat$1("^", length$1));
+            }
+            count += lineLength + 1;
+          }
+        }
+        break
+      }
+    }
+    return res.join('\n')
+  }
+
+  function repeat$1 (str, n) {
+    var result = '';
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
+    return result
+  }
+
+  /*  */
+
 
 
   function createFunction (code, errors) {
@@ -5818,14 +6142,28 @@
       // check compilation errors/tips
       {
         if (compiled.errors && compiled.errors.length) {
-          warn$$1(
-            "Error compiling template:\n\n" + template + "\n\n" +
-            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-            vm
-          );
+          if (options.outputSourceRange) {
+            compiled.errors.forEach(function (e) {
+              warn$$1(
+                "Error compiling template:\n\n" + (e.msg) + "\n\n" +
+                generateCodeFrame(template, e.start, e.end),
+                vm
+              );
+            });
+          } else {
+            warn$$1(
+              "Error compiling template:\n\n" + template + "\n\n" +
+              compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+              vm
+            );
+          }
         }
         if (compiled.tips && compiled.tips.length) {
-          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+          if (options.outputSourceRange) {
+            compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
+          } else {
+            compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+          }
         }
       }
 
@@ -5871,11 +6209,29 @@
         var finalOptions = Object.create(baseOptions);
         var errors = [];
         var tips = [];
-        finalOptions.warn = function (msg, tip) {
+
+        var warn = function (msg, range, tip) {
           (tip ? tips : errors).push(msg);
         };
 
         if (options) {
+          if (options.outputSourceRange) {
+            // $flow-disable-line
+            var leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+            warn = function (msg, range, tip) {
+              var data = { msg: msg };
+              if (range) {
+                if (range.start != null) {
+                  data.start = range.start + leadingSpaceLength;
+                }
+                if (range.end != null) {
+                  data.end = range.end + leadingSpaceLength;
+                }
+              }
+              (tip ? tips : errors).push(data);
+            };
+          }
           // merge custom modules
           if (options.modules) {
             finalOptions.modules =
@@ -5896,9 +6252,11 @@
           }
         }
 
-        var compiled = baseCompile(template, finalOptions);
+        finalOptions.warn = warn;
+
+        var compiled = baseCompile(template.trim(), finalOptions);
         {
-          errors.push.apply(errors, detectErrors(compiled.ast));
+          detectErrors(compiled.ast, warn);
         }
         compiled.errors = errors;
         compiled.tips = tips;
@@ -6239,7 +6597,7 @@
     }
   });
 
-  function createFnInvoker (fns) {
+  function createFnInvoker (fns, vm) {
     function invoker () {
       var arguments$1 = arguments;
 
@@ -6247,11 +6605,11 @@
       if (Array.isArray(fns)) {
         var cloned = fns.slice();
         for (var i = 0; i < cloned.length; i++) {
-          cloned[i].apply(null, arguments$1);
+          invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
         }
       } else {
         // return handler return value for single handlers
-        return fns.apply(null, arguments)
+        return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
       }
     }
     invoker.fns = fns;
@@ -6278,7 +6636,7 @@
         );
       } else if (isUndef(old)) {
         if (isUndef(cur.fns)) {
-          cur = on[name] = createFnInvoker(cur);
+          cur = on[name] = createFnInvoker(cur, vm);
         }
         if (isTrue(event.once)) {
           cur = on[name] = createOnceHandler(event.name, cur, event.capture);
@@ -6454,12 +6812,12 @@
       var res = factory(resolve, reject);
 
       if (isObject(res)) {
-        if (typeof res.then === 'function') {
+        if (isPromise(res)) {
           // () => Promise
           if (isUndef(factory.resolved)) {
             res.then(resolve, reject);
           }
-        } else if (isDef(res.component) && typeof res.component.then === 'function') {
+        } else if (isPromise(res.component)) {
           res.component.then(resolve, reject);
 
           if (isDef(res.error)) {
@@ -6549,10 +6907,10 @@
     children,
     context
   ) {
-    var slots = {};
-    if (!children) {
-      return slots
+    if (!children || !children.length) {
+      return {}
     }
+    var slots = {};
     for (var i = 0, l = children.length; i < l; i++) {
       var child = children[i];
       var data = child.data;
@@ -6595,10 +6953,11 @@
   ) {
     res = res || {};
     for (var i = 0; i < fns.length; i++) {
-      if (Array.isArray(fns[i])) {
-        resolveScopedSlots(fns[i], res);
+      var slot = fns[i];
+      if (Array.isArray(slot)) {
+        resolveScopedSlots(slot, res);
       } else {
-        res[fns[i].key] = fns[i].fn;
+        res[slot.key] = slot.fn;
       }
     }
     return res
@@ -6712,13 +7071,10 @@
     // #7573 disable dep collection when invoking lifecycle hooks
     pushTarget();
     var handlers = vm.$options[hook];
+    var info = hook + " hook";
     if (handlers) {
       for (var i = 0, j = handlers.length; i < j; i++) {
-        try {
-          handlers[i].call(vm);
-        } catch (e) {
-          handleError(e, vm, (hook + " hook"));
-        }
+        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
       }
     }
     if (vm._hasHookEvent) {
@@ -6898,11 +7254,21 @@
         ret[i] = render(i + 1, i);
       }
     } else if (isObject(val)) {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
+      if (hasSymbol && val[Symbol.iterator]) {
+        ret = [];
+        var iterator = val[Symbol.iterator]();
+        var result = iterator.next();
+        while (!result.done) {
+          ret.push(render(result.value, ret.length));
+          result = iterator.next();
+        }
+      } else {
+        keys = Object.keys(val);
+        ret = new Array(keys.length);
+        for (i = 0, l = keys.length; i < l; i++) {
+          key = keys[i];
+          ret[i] = render(val[key], key, i);
+        }
       }
     }
     if (!isDef(ret)) {
@@ -7149,6 +7515,48 @@
 
   /*  */
 
+  function normalizeScopedSlots (
+    slots,
+    normalSlots
+  ) {
+    var res;
+    if (!slots) {
+      res = {};
+    } else if (slots._normalized) {
+      return slots
+    } else {
+      res = {};
+      for (var key in slots) {
+        if (slots[key]) {
+          res[key] = normalizeScopedSlot(slots[key]);
+        }
+      }
+    }
+    // expose normal slots on scopedSlots
+    for (var key$1 in normalSlots) {
+      if (!(key$1 in res)) {
+        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+      }
+    }
+    res._normalized = true;
+    return res
+  }
+
+  function normalizeScopedSlot(fn) {
+    return function (scope) {
+      var res = fn(scope);
+      return res && typeof res === 'object' && !Array.isArray(res)
+        ? [res] // single vnode
+        : normalizeChildren(res)
+    }
+  }
+
+  function proxyNormalSlot(slots, key) {
+    return function () { return slots[key]; }
+  }
+
+  /*  */
+
   /*  */
 
   function resolveInject (inject, vm) {
@@ -7156,14 +7564,13 @@
       // inject is :any because flow is not smart enough to figure out cached
       var result = Object.create(null);
       var keys = hasSymbol
-        ? Reflect.ownKeys(inject).filter(function (key) {
-          /* istanbul ignore next */
-          return Object.getOwnPropertyDescriptor(inject, key).enumerable
-        })
+        ? Reflect.ownKeys(inject)
         : Object.keys(inject);
 
       for (var i = 0; i < keys.length; i++) {
         var key = keys[i];
+        // #6574 in case the inject object is observed...
+        if (key === '__ob__') { continue }
         var provideKey = inject[key].from;
         var source = vm;
         while (source) {
@@ -7263,13 +7670,20 @@
     this.injections = resolveInject(options.inject, parent);
     this.slots = function () { return resolveSlots(children, parent); };
 
+    Object.defineProperty(this, 'scopedSlots', ({
+      enumerable: true,
+      get: function get () {
+        return normalizeScopedSlots(data.scopedSlots, this.slots())
+      }
+    }));
+
     // support for compiled functional template
     if (isCompiled) {
       // exposing $options for renderStatic()
       this.$options = options;
       // pre-resolve slots for renderSlot()
       this.$slots = this.slots();
-      this.$scopedSlots = data.scopedSlots || emptyObject;
+      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
     }
 
     if (options._scopeId) {
@@ -7593,6 +8007,7 @@
   var warnOnce = function (msg) {
     if (!warned[msg]) {
       warned[msg] = true;
+      // eslint-disable-next-line no-console
       console.warn(("\n\u001b[31m" + msg + "\u001b[39m\n"));
     }
   };
@@ -7624,6 +8039,27 @@
     }
   };
 
+  function waitForSsrPrefetch (vm, resolve, reject) {
+    var handlers = vm.$options.ssrPrefetch;
+    if (isDef(handlers)) {
+      if (!Array.isArray(handlers)) { handlers = [handlers]; }
+      try {
+        var promises = [];
+        for (var i = 0, j = handlers.length; i < j; i++) {
+          var result = handlers[i].call(vm, vm);
+          if (result && typeof result.then === 'function') {
+            promises.push(result);
+          }
+        }
+        Promise.all(promises).then(resolve).catch(reject);
+        return
+      } catch (e) {
+        reject(e);
+      }
+    }
+    resolve();
+  }
+
   function renderNode (node, isRoot, context) {
     if (node.isString) {
       renderStringNode$1(node, context);
@@ -7669,7 +8105,12 @@
     var registerComponent = registerComponentForCache(Ctor.options, write);
 
     if (isDef(getKey) && isDef(cache) && isDef(name)) {
-      var key = name + '::' + getKey(node.componentOptions.propsData);
+      var rawKey = getKey(node.componentOptions.propsData);
+      if (rawKey === false) {
+        renderComponentInner(node, isRoot, context);
+        return
+      }
+      var key = name + '::' + rawKey;
       var has = context.has;
       var get = context.get;
       if (isDef(has)) {
@@ -7742,13 +8183,20 @@
       context.activeInstance
     );
     normalizeRender(child);
-    var childNode = child._render();
-    childNode.parent = node;
-    context.renderStates.push({
-      type: 'Component',
-      prevActive: prevActive
-    });
-    renderNode(childNode, isRoot, context);
+
+    var resolve = function () {
+      var childNode = child._render();
+      childNode.parent = node;
+      context.renderStates.push({
+        type: 'Component',
+        prevActive: prevActive
+      });
+      renderNode(childNode, isRoot, context);
+    };
+
+    var reject = context.done;
+
+    waitForSsrPrefetch(child, resolve, reject);
   }
 
   function renderAsyncComponent (node, isRoot, context) {
@@ -7976,7 +8424,11 @@
       });
       installSSRHelpers(component);
       normalizeRender(component);
-      renderNode(component._render(), true, context);
+
+      var resolve = function () {
+        renderNode(component._render(), true, context);
+      };
+      waitForSsrPrefetch(component, resolve, done);
     }
   }
 
@@ -8027,4 +8479,4 @@
 
   return entryServerBasicRenderer;
 
-})));
+}));
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 37cdca8424f..f10ebafc1d2 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -75,13 +75,21 @@ function isValidArrayIndex (val) {
   return n >= 0 && Math.floor(n) === n && isFinite(val)
 }
 
+function isPromise (val) {
+  return (
+    isDef(val) &&
+    typeof val.then === 'function' &&
+    typeof val.catch === 'function'
+  )
+}
+
 /**
  * Convert a value to a string that is actually rendered.
  */
 function toString (val) {
   return val == null
     ? ''
-    : typeof val === 'object'
+    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
       ? JSON.stringify(val, null, 2)
       : String(val)
 }
@@ -379,6 +387,51 @@ function escapeChar (a) {
   return ESC[a] || a
 }
 
+var noUnitNumericStyleProps = {
+  "animation-iteration-count": true,
+  "border-image-outset": true,
+  "border-image-slice": true,
+  "border-image-width": true,
+  "box-flex": true,
+  "box-flex-group": true,
+  "box-ordinal-group": true,
+  "column-count": true,
+  "columns": true,
+  "flex": true,
+  "flex-grow": true,
+  "flex-positive": true,
+  "flex-shrink": true,
+  "flex-negative": true,
+  "flex-order": true,
+  "grid-row": true,
+  "grid-row-end": true,
+  "grid-row-span": true,
+  "grid-row-start": true,
+  "grid-column": true,
+  "grid-column-end": true,
+  "grid-column-span": true,
+  "grid-column-start": true,
+  "font-weight": true,
+  "line-clamp": true,
+  "line-height": true,
+  "opacity": true,
+  "order": true,
+  "orphans": true,
+  "tab-size": true,
+  "widows": true,
+  "z-index": true,
+  "zoom": true,
+  // SVG
+  "fill-opacity": true,
+  "flood-opacity": true,
+  "stop-opacity": true,
+  "stroke-dasharray": true,
+  "stroke-dashoffset": true,
+  "stroke-miterlimit": true,
+  "stroke-opacity": true,
+  "stroke-width": true
+};
+
 /*  */
 
 // these are reserved for web because they are directly compiled away
@@ -596,6 +649,13 @@ function setText (node, text, raw) {
 
 /*  */
 
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
 /**
  * Define a property.
  */
@@ -624,6 +684,7 @@ var isEdge = UA && UA.indexOf('edge/') > 0;
 var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+var isPhantomJS = UA && /phantomjs/.test(UA);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -711,7 +772,8 @@ var LIFECYCLE_HOOKS = [
   'destroyed',
   'activated',
   'deactivated',
-  'errorCaptured'
+  'errorCaptured',
+  'ssrPrefetch'
 ];
 
 /*  */
@@ -1255,9 +1317,15 @@ var strats = config.optionMergeStrategies;
 function mergeData (to, from) {
   if (!from) { return to }
   var key, toVal, fromVal;
-  var keys = Object.keys(from);
+
+  var keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from);
+
   for (var i = 0; i < keys.length; i++) {
     key = keys[i];
+    // in case the object is already observed...
+    if (key === '__ob__') { continue }
     toVal = to[key];
     fromVal = from[key];
     if (!hasOwn(to, key)) {
@@ -1477,11 +1545,10 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!/^[a-zA-Z][\w-]*$/.test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
-      'can only contain alphanumeric characters and the hyphen, ' +
-      'and must start with a letter.'
+      'should conform to valid custom element name in html5 specification.'
     );
   }
   if (isBuiltInTag(name) || config.isReservedTag(name)) {
@@ -1564,9 +1631,9 @@ function normalizeDirectives (options) {
   var dirs = options.directives;
   if (dirs) {
     for (var key in dirs) {
-      var def = dirs[key];
-      if (typeof def === 'function') {
-        dirs[key] = { bind: def, update: def };
+      var def$$1 = dirs[key];
+      if (typeof def$$1 === 'function') {
+        dirs[key] = { bind: def$$1, update: def$$1 };
       }
     }
   }
@@ -1912,6 +1979,25 @@ function handleError (err, vm, info) {
   globalHandleError(err, vm, info);
 }
 
+function invokeWithErrorHandling (
+  handler,
+  context,
+  args,
+  vm,
+  info
+) {
+  var res;
+  try {
+    res = args ? handler.apply(context, args) : handler.call(context);
+    if (isPromise(res)) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+    }
+  } catch (e) {
+    handleError(e, vm, info);
+  }
+  return res
+}
+
 function globalHandleError (err, vm, info) {
   logError(err, vm, info);
 }
@@ -1940,23 +2026,28 @@ function flushCallbacks () {
   }
 }
 
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  channel.port1.onmessage = flushCallbacks;
-}
-
-// Determine microtask defer implementation.
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
 /* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) ;
+if (typeof Promise !== 'undefined' && isNative(Promise)) ; else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  var counter = 1;
+  var observer = new MutationObserver(flushCallbacks);
+  var textNode = document.createTextNode(String(counter));
+  observer.observe(textNode, {
+    characterData: true
+  });
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ;
 
 /*  */
 
@@ -2175,15 +2266,28 @@ function genStyle (style) {
     var hyphenatedKey = hyphenate(key);
     if (Array.isArray(value)) {
       for (var i = 0, len = value.length; i < len; i++) {
-        styleText += hyphenatedKey + ":" + (value[i]) + ";";
+        styleText += normalizeValue(hyphenatedKey, value[i]);
       }
     } else {
-      styleText += hyphenatedKey + ":" + value + ";";
+      styleText += normalizeValue(hyphenatedKey, value);
     }
   }
   return styleText
 }
 
+function normalizeValue(key, value) {
+  if (
+    typeof value === 'string' ||
+    (typeof value === 'number' && noUnitNumericStyleProps[key]) ||
+    value === 0
+  ) {
+    return (key + ":" + value + ";")
+  } else {
+    // invalid values
+    return ""
+  }
+}
+
 function renderStyle (vnode) {
   var styleText = genStyle(getStyle(vnode, false));
   if (styleText !== '') {
@@ -2368,6 +2472,7 @@ var RenderStream = /*@__PURE__*/(function (superclass) {
     });
 
     this.end = function () {
+      this$1.emit('beforeEnd');
       // the rendering is finished; we should push out the last of the buffer.
       this$1.done = true;
       this$1.push(this$1.buffer);
@@ -2668,9 +2773,13 @@ function parseText (
 
 /*  */
 
-function baseWarn (msg) {
+
+
+/* eslint-disable no-unused-vars */
+function baseWarn (msg, range) {
   console.error(("[Vue compiler]: " + msg));
 }
+/* eslint-enable no-unused-vars */
 
 function pluckModuleFunction (
   modules,
@@ -2681,20 +2790,20 @@ function pluckModuleFunction (
     : []
 }
 
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
+function addProp (el, name, value, range) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
   el.plain = false;
 }
 
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+function addAttr (el, name, value, range) {
+  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
   el.plain = false;
 }
 
 // add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
+function addRawAttr (el, name, value, range) {
   el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
+  el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
 }
 
 function addDirective (
@@ -2703,9 +2812,10 @@ function addDirective (
   rawName,
   value,
   arg,
-  modifiers
+  modifiers,
+  range
 ) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
   el.plain = false;
 }
 
@@ -2715,7 +2825,8 @@ function addHandler (
   value,
   modifiers,
   important,
-  warn
+  warn,
+  range
 ) {
   modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
@@ -2726,7 +2837,8 @@ function addHandler (
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
+      'Passive handler can\'t prevent default event.',
+      range
     );
   }
 
@@ -2765,9 +2877,7 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = {
-    value: value.trim()
-  };
+  var newHandler = rangeSetItem({ value: value.trim() }, range);
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -2785,6 +2895,15 @@ function addHandler (
   el.plain = false;
 }
 
+function getRawBindingAttr (
+  el,
+  name
+) {
+  return el.rawAttrsMap[':' + name] ||
+    el.rawAttrsMap['v-bind:' + name] ||
+    el.rawAttrsMap[name]
+}
+
 function getBindingAttr (
   el,
   name,
@@ -2828,6 +2947,21 @@ function getAndRemoveAttr (
   return val
 }
 
+function rangeSetItem (
+  item,
+  range
+) {
+  if (range) {
+    if (range.start != null) {
+      item.start = range.start;
+    }
+    if (range.end != null) {
+      item.end = range.end;
+    }
+  }
+  return item
+}
+
 /*  */
 
 function transformNode (el, options) {
@@ -2840,7 +2974,8 @@ function transformNode (el, options) {
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
         'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
+        'instead of <div class="{{ val }}">, use <div :class="val">.',
+        el.rawAttrsMap['class']
       );
     }
   }
@@ -2884,7 +3019,8 @@ function transformNode$1 (el, options) {
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
           'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
+          'instead of <div style="{{ val }}">, use <div :style="val">.',
+          el.rawAttrsMap['style']
         );
       }
     }
@@ -2920,9 +3056,7 @@ var style = {
 
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
@@ -2975,7 +3109,7 @@ function parseHTML (html, options) {
 
           if (commentEnd >= 0) {
             if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
+              options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
             }
             advance(commentEnd + 3);
             continue
@@ -3035,16 +3169,18 @@ function parseHTML (html, options) {
           rest = html.slice(textEnd);
         }
         text = html.substring(0, textEnd);
-        advance(textEnd);
       }
 
       if (textEnd < 0) {
         text = html;
-        html = '';
+      }
+
+      if (text) {
+        advance(text.length);
       }
 
       if (options.chars && text) {
-        options.chars(text);
+        options.chars(text, index - text.length, index);
       }
     } else {
       var endTagLength = 0;
@@ -3073,7 +3209,7 @@ function parseHTML (html, options) {
     if (html === last) {
       options.chars && options.chars(html);
       if (!stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
       }
       break
     }
@@ -3098,7 +3234,9 @@ function parseHTML (html, options) {
       advance(start[0].length);
       var end, attr;
       while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        attr.start = index;
         advance(attr[0].length);
+        attr.end = index;
         match.attrs.push(attr);
       }
       if (end) {
@@ -3137,10 +3275,14 @@ function parseHTML (html, options) {
         name: args[1],
         value: decodeAttr(value, shouldDecodeNewlines)
       };
+      if (options.outputSourceRange) {
+        attrs[i].start = args.start + args[0].match(/^\s*/).length;
+        attrs[i].end = args.end;
+      }
     }
 
     if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
       lastTag = tagName;
     }
 
@@ -3174,7 +3316,8 @@ function parseHTML (html, options) {
           options.warn
         ) {
           options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+            ("tag <" + (stack[i].tag) + "> has no matching end tag."),
+            { start: stack[i].start }
           );
         }
         if (options.end) {
@@ -3351,15 +3494,19 @@ function parseString (chr) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
+var dirRE = /^v-|^@|^:|^\./;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
+var bindRE = /^:|^\.|^v-bind:/;
+var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
+var lineBreakRE = /[\r\n]/;
+var whitespaceRE = /\s+/g;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -3372,8 +3519,6 @@ var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
 
-
-
 function createASTElement (
   tag,
   attrs,
@@ -3384,6 +3529,7 @@ function createASTElement (
     tag: tag,
     attrsList: attrs,
     attrsMap: makeAttrsMap(attrs),
+    rawAttrsMap: {},
     parent: parent,
     children: []
   }
@@ -3401,6 +3547,7 @@ function parse (
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
   platformGetTagNamespace = options.getTagNamespace || no;
+  var isReservedTag = options.isReservedTag || no;
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
   preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -3410,20 +3557,55 @@ function parse (
 
   var stack = [];
   var preserveWhitespace = options.preserveWhitespace !== false;
+  var whitespaceOption = options.whitespace;
   var root;
   var currentParent;
   var inVPre = false;
   var inPre = false;
   var warned = false;
 
-  function warnOnce (msg) {
+  function warnOnce (msg, range) {
     if (!warned) {
       warned = true;
-      warn$1(msg);
+      warn$1(msg, range);
     }
   }
 
   function closeElement (element) {
+    if (!inVPre && !element.processed) {
+      element = processElement(element, options);
+    }
+    // tree management
+    if (!stack.length && element !== root) {
+      // allow root elements with v-if, v-else-if and v-else
+      if (root.if && (element.elseif || element.else)) {
+        {
+          checkRootConstraints(element);
+        }
+        addIfCondition(root, {
+          exp: element.elseif,
+          block: element
+        });
+      } else {
+        warnOnce(
+          "Component template should contain exactly one root element. " +
+          "If you are using v-if on multiple elements, " +
+          "use v-else-if to chain them instead.",
+          { start: element.start }
+        );
+      }
+    }
+    if (currentParent && !element.forbidden) {
+      if (element.elseif || element.else) {
+        processIfConditions(element, currentParent);
+      } else if (element.slotScope) { // scoped slot
+        var name = element.slotTarget || '"default"'
+        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+      } else {
+        currentParent.children.push(element);
+        element.parent = currentParent;
+      }
+    }
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -3437,6 +3619,23 @@ function parse (
     }
   }
 
+  function checkRootConstraints (el) {
+    if (el.tag === 'slot' || el.tag === 'template') {
+      warnOnce(
+        "Cannot use <" + (el.tag) + "> as component root element because it may " +
+        'contain multiple nodes.',
+        { start: el.start }
+      );
+    }
+    if (el.attrsMap.hasOwnProperty('v-for')) {
+      warnOnce(
+        'Cannot use v-for on stateful component root element because ' +
+        'it renders multiple elements.',
+        el.rawAttrsMap['v-for']
+      );
+    }
+  }
+
   parseHTML(template, {
     warn: warn$1,
     expectHTML: options.expectHTML,
@@ -3445,7 +3644,8 @@ function parse (
     shouldDecodeNewlines: options.shouldDecodeNewlines,
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
+    outputSourceRange: options.outputSourceRange,
+    start: function start (tag, attrs, unary, start$1) {
       // check namespace.
       // inherit parent ns if there is one
       var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -3461,12 +3661,21 @@ function parse (
         element.ns = ns;
       }
 
+      if (options.outputSourceRange) {
+        element.start = start$1;
+        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+          cumulated[attr.name] = attr;
+          return cumulated
+        }, {});
+      }
+
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true;
         warn$1(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
+          "<" + tag + ">" + ', as they will not be parsed.',
+          { start: element.start }
         );
       }
 
@@ -3491,59 +3700,15 @@ function parse (
         processFor(element);
         processIf(element);
         processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
       }
 
-      function checkRootConstraints (el) {
-        {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
-      }
-
-      // tree management
       if (!root) {
         root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
+        {
+          checkRootConstraints(root);
         }
       }
+
       if (!unary) {
         currentParent = element;
         stack.push(element);
@@ -3552,29 +3717,36 @@ function parse (
       }
     },
 
-    end: function end () {
-      // remove trailing whitespace
+    end: function end (tag, start, end$1) {
       var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
+      if (!inPre) {
+        // remove trailing whitespace node
+        var lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+          element.children.pop();
+        }
       }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
+      if (options.outputSourceRange) {
+        element.end = end$1;
+      }
       closeElement(element);
     },
 
-    chars: function chars (text) {
+    chars: function chars (text, start, end) {
       if (!currentParent) {
         {
           if (text === template) {
             warnOnce(
-              'Component template requires a root element, rather than just text.'
+              'Component template requires a root element, rather than just text.',
+              { start: start }
             );
           } else if ((text = text.trim())) {
             warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
+              ("text \"" + text + "\" outside root element will be ignored."),
+              { start: start }
             );
           }
         }
@@ -3589,33 +3761,62 @@ function parse (
         return
       }
       var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
+      if (inPre || text.trim()) {
+        text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+      } else if (!children.length) {
+        // remove the whitespace-only node right after an opening tag
+        text = '';
+      } else if (whitespaceOption) {
+        if (whitespaceOption === 'condense') {
+          // in condense mode, remove the whitespace node if it contains
+          // line break, otherwise condense to a single space
+          text = lineBreakRE.test(text) ? '' : ' ';
+        } else {
+          text = ' ';
+        }
+      } else {
+        text = preserveWhitespace ? ' ' : '';
+      }
       if (text) {
+        if (whitespaceOption === 'condense') {
+          // condense consecutive whitespaces into single space
+          text = text.replace(whitespaceRE, ' ');
+        }
         var res;
+        var child;
         if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
+          child = {
             type: 2,
             expression: res.expression,
             tokens: res.tokens,
             text: text
-          });
+          };
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
+          child = {
             type: 3,
             text: text
-          });
+          };
+        }
+        if (child) {
+          if (options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          children.push(child);
         }
       }
     },
-    comment: function comment (text) {
-      currentParent.children.push({
+    comment: function comment (text, start, end) {
+      var child = {
         type: 3,
         text: text,
         isComment: true
-      });
+      };
+      if (options.outputSourceRange) {
+        child.start = start;
+        child.end = end;
+      }
+      currentParent.children.push(child);
     }
   });
   return root
@@ -3628,14 +3829,19 @@ function processPre (el) {
 }
 
 function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
+  var list = el.attrsList;
+  var len = list.length;
+  if (len) {
+    var attrs = el.attrs = new Array(len);
+    for (var i = 0; i < len; i++) {
       attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
+        name: list[i].name,
+        value: JSON.stringify(list[i].value)
       };
+      if (list[i].start != null) {
+        attrs[i].start = list[i].start;
+        attrs[i].end = list[i].end;
+      }
     }
   } else if (!el.pre) {
     // non root node in pre blocks with no attributes
@@ -3643,20 +3849,29 @@ function processRawAttrs (el) {
   }
 }
 
-function processElement (element, options) {
+function processElement (
+  element,
+  options
+) {
   processKey(element);
 
   // determine whether this is a plain element after
   // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
+  element.plain = (
+    !element.key &&
+    !element.scopedSlots &&
+    !element.attrsList.length
+  );
 
   processRef(element);
-  processSlot(element);
+  processSlotContent(element);
+  processSlotOutlet(element);
   processComponent(element);
   for (var i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element;
   }
   processAttrs(element);
+  return element
 }
 
 function processKey (el) {
@@ -3664,7 +3879,10 @@ function processKey (el) {
   if (exp) {
     {
       if (el.tag === 'template') {
-        warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+        warn$1(
+          "<template> cannot be keyed. Place the key on real elements instead.",
+          getRawBindingAttr(el, 'key')
+        );
       }
       if (el.for) {
         var iterator = el.iterator2 || el.iterator1;
@@ -3672,7 +3890,9 @@ function processKey (el) {
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn$1(
             "Do not use v-for index as key on <transition-group> children, " +
-            "this is the same as not using keys."
+            "this is the same as not using keys.",
+            getRawBindingAttr(el, 'key'),
+            true /* tip */
           );
         }
       }
@@ -3697,7 +3917,8 @@ function processFor (el) {
       extend(el, res);
     } else {
       warn$1(
-        ("Invalid v-for expression: " + exp)
+        ("Invalid v-for expression: " + exp),
+        el.rawAttrsMap['v-for']
       );
     }
   }
@@ -3753,7 +3974,8 @@ function processIfConditions (el, parent) {
   } else {
     warn$1(
       "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
+      "used on element <" + (el.tag) + "> without corresponding v-if.",
+      el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
     );
   }
 }
@@ -3767,7 +3989,8 @@ function findPrevElement (children) {
       if (children[i].text !== ' ') {
         warn$1(
           "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
+          "will be ignored.",
+          children[i]
         );
       }
       children.pop();
@@ -3789,52 +4012,65 @@ function processOnce (el) {
   }
 }
 
-function processSlot (el) {
+// handle content being passed to a component as slot,
+// e.g. <template slot="xxx">, <div slot-scope="xxx">
+function processSlotContent (el) {
+  var slotScope;
+  if (el.tag === 'template') {
+    slotScope = getAndRemoveAttr(el, 'scope');
+    /* istanbul ignore if */
+    if (slotScope) {
+      warn$1(
+        "the \"scope\" attribute for scoped slots have been deprecated and " +
+        "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+        "can also be used on plain elements in addition to <template> to " +
+        "denote scoped slots.",
+        el.rawAttrsMap['scope'],
+        true
+      );
+    }
+    el.slotScope = (
+      slotScope ||
+      getAndRemoveAttr(el, 'slot-scope')
+    );
+  } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+    /* istanbul ignore if */
+    if (el.attrsMap['v-for']) {
+      warn$1(
+        "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+        "(v-for takes higher priority). Use a wrapper <template> for the " +
+        "scoped slot to make it clearer.",
+        el.rawAttrsMap['slot-scope'],
+        true
+      );
+    }
+    el.slotScope = slotScope;
+  }
+
+  // slot="xxx"
+  var slotTarget = getBindingAttr(el, 'slot');
+  if (slotTarget) {
+    el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    // preserve slot as an attribute for native shadow DOM compat
+    // only for non-scoped slots.
+    if (el.tag !== 'template' && !el.slotScope) {
+      addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+    }
+  }
+}
+
+// handle <slot/> outlets
+function processSlotOutlet (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name');
     if (el.key) {
       warn$1(
         "`key` does not work on <slot> because slots are abstract outlets " +
         "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
+        "Use the key on a wrapping element instead.",
+        getRawBindingAttr(el, 'key')
       );
     }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if (slotScope) {
-        warn$1(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if (el.attrsMap['v-for']) {
-        warn$1(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
-      }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
-    }
   }
 }
 
@@ -3850,7 +4086,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
+  var i, l, name, rawName, value, modifiers, isProp, syncGen;
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name;
     value = list[i].value;
@@ -3858,8 +4094,12 @@ function processAttrs (el) {
       // mark element as dynamic
       el.hasBindings = true;
       // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
+      modifiers = parseModifiers(name.replace(dirRE, ''));
+      // support .foo shorthand syntax for the .prop modifier
+      if (propBindRE.test(name)) {
+        (modifiers || (modifiers = {})).prop = true;
+        name = "." + name.slice(1).replace(modifierRE, '');
+      } else if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -3883,23 +4123,39 @@ function processAttrs (el) {
             name = camelize(name);
           }
           if (modifiers.sync) {
+            syncGen = genAssignmentCode(value, "$event");
             addHandler(
               el,
               ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
+              syncGen,
+              null,
+              false,
+              warn$1,
+              list[i]
             );
+            if (hyphenate(name) !== camelize(name)) {
+              addHandler(
+                el,
+                ("update:" + (hyphenate(name))),
+                syncGen,
+                null,
+                false,
+                warn$1,
+                list[i]
+              );
+            }
           }
         }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value);
+          addProp(el, name, value, list[i]);
         } else {
-          addAttr(el, name, value);
+          addAttr(el, name, value, list[i]);
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$1);
+        addHandler(el, name, value, modifiers, false, warn$1, list[i]);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
@@ -3908,7 +4164,7 @@ function processAttrs (el) {
         if (arg) {
           name = name.slice(0, -(arg.length + 1));
         }
-        addDirective(el, name, rawName, value, arg, modifiers);
+        addDirective(el, name, rawName, value, arg, modifiers, list[i]);
         if (name === 'model') {
           checkForAliasModel(el, value);
         }
@@ -3922,17 +4178,18 @@ function processAttrs (el) {
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
+            'instead of <div id="{{ val }}">, use <div :id="val">.',
+            list[i]
           );
         }
       }
-      addAttr(el, name, JSON.stringify(value));
+      addAttr(el, name, JSON.stringify(value), list[i]);
       // #6887 firefox doesn't update muted state if set via attribute
       // even immediately after element creation
       if (!el.component &&
           name === 'muted' &&
           platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
+        addProp(el, name, 'true', list[i]);
       }
     }
   }
@@ -3964,7 +4221,7 @@ function makeAttrsMap (attrs) {
     if (
       map[attrs[i].name] && !isIE && !isEdge
     ) {
-      warn$1('duplicate attribute: ' + attrs[i].name);
+      warn$1('duplicate attribute: ' + attrs[i].name, attrs[i]);
     }
     map[attrs[i].name] = attrs[i].value;
   }
@@ -4011,7 +4268,8 @@ function checkForAliasModel (el, value) {
         "You are binding v-model directly to a v-for iteration alias. " +
         "This will not be able to modify the v-for source array because " +
         "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
+        "Consider using an array of objects and use v-model on an object property instead.",
+        el.rawAttrsMap['v-model']
       );
     }
     _el = _el.parent;
@@ -4121,7 +4379,8 @@ function model$2 (
     if (tag === 'input' && type === 'file') {
       warn$2(
         "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
+        "File inputs are read only. Use a v-on:change listener instead.",
+        el.rawAttrsMap['v-model']
       );
     }
   }
@@ -4224,7 +4483,8 @@ function genDefaultModel (
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$2(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
+        'because the latter already expands to a value binding internally',
+        el.rawAttrsMap[binding]
       );
     }
   }
@@ -4264,7 +4524,7 @@ function genDefaultModel (
 
 function text (el, dir) {
   if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
   }
 }
 
@@ -4272,7 +4532,7 @@ function text (el, dir) {
 
 function html (el, dir) {
   if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
   }
 }
 
@@ -4300,6 +4560,7 @@ var baseOptions = {
 /*  */
 
 var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
 // KeyboardEvent.keyCode aliases
@@ -4375,12 +4636,13 @@ function genHandler (
 
   var isMethodPath = simplePathRE.test(handler.value);
   var isFunctionExpression = fnExpRE.test(handler.value);
+  var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
 
   if (!handler.modifiers) {
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    return ("function($event){" + (handler.value) + "}") // inline statement
+    return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -4415,7 +4677,9 @@ function genHandler (
       ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
+        : isFunctionInvocation
+          ? ("return " + (handler.value))
+          : handler.value;
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -4479,7 +4743,7 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives$1), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+  this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
   this.onceId = 0;
   this.staticRenderFns = [];
   this.pre = false;
@@ -4570,7 +4834,8 @@ function genOnce (el, state) {
     }
     if (!key) {
       state.warn(
-        "v-once can only be used inside v-for that is keyed. "
+        "v-once can only be used inside v-for that is keyed. ",
+        el.rawAttrsMap['v-once']
       );
       return genElement(el, state)
     }
@@ -4637,6 +4902,7 @@ function genFor (
       "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
       "v-for should have explicit keys. " +
       "See https://vuejs.org/guide/list.html#key for more info.",
+      el.rawAttrsMap['v-for'],
       true /* tip */
     );
   }
@@ -4754,7 +5020,10 @@ function genDirectives (el, state) {
 function genInlineTemplate (el, state) {
   var ast = el.children[0];
   if (el.children.length !== 1 || ast.type !== 1) {
-    state.warn('Inline-template components must have exactly one child element.');
+    state.warn(
+      'Inline-template components must have exactly one child element.',
+      { start: el.start }
+    );
   }
   if (ast.type === 1) {
     var inlineRenderFns = generate(ast, state.options);
@@ -4936,8 +5205,6 @@ function transformSpecialNewlines (text) {
 
 
 
-
-
 var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
 // let the model AST transform translate v-model into appropriate
@@ -5118,6 +5385,7 @@ function optimizeSiblings (el) {
         tag: 'template',
         attrsList: [],
         attrsMap: {},
+        rawAttrsMap: {},
         children: currentOptimizableGroup,
         ssrOptimizability: optimizability.FULL
       });
@@ -5405,6 +5673,8 @@ function flattenSegments (segments) {
 
 /*  */
 
+
+
 // these keywords should not appear inside expressions, but operators like
 // typeof, instanceof and in are allowed
 var prohibitedKeywordRE = new RegExp('\\b' + (
@@ -5422,89 +5692,92 @@ var unaryOperatorsRE = new RegExp('\\b' + (
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
 // detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
+function detectErrors (ast, warn) {
   if (ast) {
-    checkNode(ast, errors);
+    checkNode(ast, warn);
   }
-  return errors
 }
 
-function checkNode (node, errors) {
+function checkNode (node, warn) {
   if (node.type === 1) {
     for (var name in node.attrsMap) {
       if (dirRE.test(name)) {
         var value = node.attrsMap[name];
         if (value) {
+          var range = node.rawAttrsMap[name];
           if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
+            checkFor(node, ("v-for=\"" + value + "\""), warn, range);
           } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
+            checkEvent(value, (name + "=\"" + value + "\""), warn, range);
           } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
+            checkExpression(value, (name + "=\"" + value + "\""), warn, range);
           }
         }
       }
     }
     if (node.children) {
       for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
+        checkNode(node.children[i], warn);
       }
     }
   } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
+    checkExpression(node.expression, node.text, warn, node);
   }
 }
 
-function checkEvent (exp, text, errors) {
+function checkEvent (exp, text, warn, range) {
   var stipped = exp.replace(stripStringRE, '');
   var keywordMatch = stipped.match(unaryOperatorsRE);
   if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
+    warn(
       "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
+      range
     );
   }
-  checkExpression(exp, text, errors);
+  checkExpression(exp, text, warn, range);
 }
 
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+function checkFor (node, text, warn, range) {
+  checkExpression(node.for || '', text, warn, range);
+  checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
 }
 
 function checkIdentifier (
   ident,
   type,
   text,
-  errors
+  warn,
+  range
 ) {
   if (typeof ident === 'string') {
     try {
       new Function(("var " + ident + "=_"));
     } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+      warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
     }
   }
 }
 
-function checkExpression (exp, text, errors) {
+function checkExpression (exp, text, warn, range) {
   try {
     new Function(("return " + exp));
   } catch (e) {
     var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
     if (keywordMatch) {
-      errors.push(
+      warn(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
+        range
       );
     } else {
-      errors.push(
+      warn(
         "invalid expression: " + (e.message) + " in\n\n" +
         "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
+        "  Raw expression: " + (text.trim()) + "\n",
+        range
       );
     }
   }
@@ -5512,6 +5785,58 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+var range = 2;
+
+function generateCodeFrame (
+  source,
+  start,
+  end
+) {
+  if ( start === void 0 ) start = 0;
+  if ( end === void 0 ) end = source.length;
+
+  var lines = source.split(/\r?\n/);
+  var count = 0;
+  var res = [];
+  for (var i = 0; i < lines.length; i++) {
+    count += lines[i].length + 1;
+    if (count >= start) {
+      for (var j = i - range; j <= i + range || end > count; j++) {
+        if (j < 0 || j >= lines.length) { continue }
+        res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
+        var lineLength = lines[j].length;
+        if (j === i) {
+          // push underline
+          var pad = start - (count - lineLength) + 1;
+          var length = end > count ? lineLength - pad : end - start;
+          res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
+        } else if (j > i) {
+          if (end > count) {
+            var length$1 = Math.min(end - count, lineLength);
+            res.push("   |  " + repeat$1("^", length$1));
+          }
+          count += lineLength + 1;
+        }
+      }
+      break
+    }
+  }
+  return res.join('\n')
+}
+
+function repeat$1 (str, n) {
+  var result = '';
+  while (true) { // eslint-disable-line
+    if (n & 1) { result += str; }
+    n >>>= 1;
+    if (n <= 0) { break }
+    str += str;
+  }
+  return result
+}
+
+/*  */
+
 
 
 function createFunction (code, errors) {
@@ -5567,14 +5892,28 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     {
       if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
-        );
+        if (options.outputSourceRange) {
+          compiled.errors.forEach(function (e) {
+            warn$$1(
+              "Error compiling template:\n\n" + (e.msg) + "\n\n" +
+              generateCodeFrame(template, e.start, e.end),
+              vm
+            );
+          });
+        } else {
+          warn$$1(
+            "Error compiling template:\n\n" + template + "\n\n" +
+            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+            vm
+          );
+        }
       }
       if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+        if (options.outputSourceRange) {
+          compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
+        } else {
+          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+        }
       }
     }
 
@@ -5620,11 +5959,29 @@ function createCompilerCreator (baseCompile) {
       var finalOptions = Object.create(baseOptions);
       var errors = [];
       var tips = [];
-      finalOptions.warn = function (msg, tip) {
+
+      var warn = function (msg, range, tip) {
         (tip ? tips : errors).push(msg);
       };
 
       if (options) {
+        if (options.outputSourceRange) {
+          // $flow-disable-line
+          var leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+          warn = function (msg, range, tip) {
+            var data = { msg: msg };
+            if (range) {
+              if (range.start != null) {
+                data.start = range.start + leadingSpaceLength;
+              }
+              if (range.end != null) {
+                data.end = range.end + leadingSpaceLength;
+              }
+            }
+            (tip ? tips : errors).push(data);
+          };
+        }
         // merge custom modules
         if (options.modules) {
           finalOptions.modules =
@@ -5645,9 +6002,11 @@ function createCompilerCreator (baseCompile) {
         }
       }
 
-      var compiled = baseCompile(template, finalOptions);
+      finalOptions.warn = warn;
+
+      var compiled = baseCompile(template.trim(), finalOptions);
       {
-        errors.push.apply(errors, detectErrors(compiled.ast));
+        detectErrors(compiled.ast, warn);
       }
       compiled.errors = errors;
       compiled.tips = tips;
@@ -5988,7 +6347,7 @@ var normalizeEvent = cached(function (name) {
   }
 });
 
-function createFnInvoker (fns) {
+function createFnInvoker (fns, vm) {
   function invoker () {
     var arguments$1 = arguments;
 
@@ -5996,11 +6355,11 @@ function createFnInvoker (fns) {
     if (Array.isArray(fns)) {
       var cloned = fns.slice();
       for (var i = 0; i < cloned.length; i++) {
-        cloned[i].apply(null, arguments$1);
+        invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
       }
     } else {
       // return handler return value for single handlers
-      return fns.apply(null, arguments)
+      return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
     }
   }
   invoker.fns = fns;
@@ -6027,7 +6386,7 @@ function updateListeners (
       );
     } else if (isUndef(old)) {
       if (isUndef(cur.fns)) {
-        cur = on[name] = createFnInvoker(cur);
+        cur = on[name] = createFnInvoker(cur, vm);
       }
       if (isTrue(event.once)) {
         cur = on[name] = createOnceHandler(event.name, cur, event.capture);
@@ -6203,12 +6562,12 @@ function resolveAsyncComponent (
     var res = factory(resolve, reject);
 
     if (isObject(res)) {
-      if (typeof res.then === 'function') {
+      if (isPromise(res)) {
         // () => Promise
         if (isUndef(factory.resolved)) {
           res.then(resolve, reject);
         }
-      } else if (isDef(res.component) && typeof res.component.then === 'function') {
+      } else if (isPromise(res.component)) {
         res.component.then(resolve, reject);
 
         if (isDef(res.error)) {
@@ -6298,10 +6657,10 @@ function resolveSlots (
   children,
   context
 ) {
-  var slots = {};
-  if (!children) {
-    return slots
+  if (!children || !children.length) {
+    return {}
   }
+  var slots = {};
   for (var i = 0, l = children.length; i < l; i++) {
     var child = children[i];
     var data = child.data;
@@ -6344,10 +6703,11 @@ function resolveScopedSlots (
 ) {
   res = res || {};
   for (var i = 0; i < fns.length; i++) {
-    if (Array.isArray(fns[i])) {
-      resolveScopedSlots(fns[i], res);
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, res);
     } else {
-      res[fns[i].key] = fns[i].fn;
+      res[slot.key] = slot.fn;
     }
   }
   return res
@@ -6461,13 +6821,10 @@ function callHook (vm, hook) {
   // #7573 disable dep collection when invoking lifecycle hooks
   pushTarget();
   var handlers = vm.$options[hook];
+  var info = hook + " hook";
   if (handlers) {
     for (var i = 0, j = handlers.length; i < j; i++) {
-      try {
-        handlers[i].call(vm);
-      } catch (e) {
-        handleError(e, vm, (hook + " hook"));
-      }
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
     }
   }
   if (vm._hasHookEvent) {
@@ -6647,11 +7004,21 @@ function renderList (
       ret[i] = render(i + 1, i);
     }
   } else if (isObject(val)) {
-    keys = Object.keys(val);
-    ret = new Array(keys.length);
-    for (i = 0, l = keys.length; i < l; i++) {
-      key = keys[i];
-      ret[i] = render(val[key], key, i);
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
+      }
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
     }
   }
   if (!isDef(ret)) {
@@ -6898,6 +7265,48 @@ function installRenderHelpers (target) {
 
 /*  */
 
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key]) {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
+  }
+  res._normalized = true;
+  return res
+}
+
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
+
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
+}
+
+/*  */
+
 /*  */
 
 function resolveInject (inject, vm) {
@@ -6905,14 +7314,13 @@ function resolveInject (inject, vm) {
     // inject is :any because flow is not smart enough to figure out cached
     var result = Object.create(null);
     var keys = hasSymbol
-      ? Reflect.ownKeys(inject).filter(function (key) {
-        /* istanbul ignore next */
-        return Object.getOwnPropertyDescriptor(inject, key).enumerable
-      })
+      ? Reflect.ownKeys(inject)
       : Object.keys(inject);
 
     for (var i = 0; i < keys.length; i++) {
       var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
       var provideKey = inject[key].from;
       var source = vm;
       while (source) {
@@ -7012,13 +7420,20 @@ function FunctionalRenderContext (
   this.injections = resolveInject(options.inject, parent);
   this.slots = function () { return resolveSlots(children, parent); };
 
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
+
   // support for compiled functional template
   if (isCompiled) {
     // exposing $options for renderStatic()
     this.$options = options;
     // pre-resolve slots for renderSlot()
     this.$slots = this.slots();
-    this.$scopedSlots = data.scopedSlots || emptyObject;
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
   }
 
   if (options._scopeId) {
@@ -7342,6 +7757,7 @@ var warned = Object.create(null);
 var warnOnce = function (msg) {
   if (!warned[msg]) {
     warned[msg] = true;
+    // eslint-disable-next-line no-console
     console.warn(("\n\u001b[31m" + msg + "\u001b[39m\n"));
   }
 };
@@ -7373,6 +7789,27 @@ var normalizeRender = function (vm) {
   }
 };
 
+function waitForSsrPrefetch (vm, resolve, reject) {
+  var handlers = vm.$options.ssrPrefetch;
+  if (isDef(handlers)) {
+    if (!Array.isArray(handlers)) { handlers = [handlers]; }
+    try {
+      var promises = [];
+      for (var i = 0, j = handlers.length; i < j; i++) {
+        var result = handlers[i].call(vm, vm);
+        if (result && typeof result.then === 'function') {
+          promises.push(result);
+        }
+      }
+      Promise.all(promises).then(resolve).catch(reject);
+      return
+    } catch (e) {
+      reject(e);
+    }
+  }
+  resolve();
+}
+
 function renderNode (node, isRoot, context) {
   if (node.isString) {
     renderStringNode$1(node, context);
@@ -7418,7 +7855,12 @@ function renderComponent (node, isRoot, context) {
   var registerComponent = registerComponentForCache(Ctor.options, write);
 
   if (isDef(getKey) && isDef(cache) && isDef(name)) {
-    var key = name + '::' + getKey(node.componentOptions.propsData);
+    var rawKey = getKey(node.componentOptions.propsData);
+    if (rawKey === false) {
+      renderComponentInner(node, isRoot, context);
+      return
+    }
+    var key = name + '::' + rawKey;
     var has = context.has;
     var get = context.get;
     if (isDef(has)) {
@@ -7491,13 +7933,20 @@ function renderComponentInner (node, isRoot, context) {
     context.activeInstance
   );
   normalizeRender(child);
-  var childNode = child._render();
-  childNode.parent = node;
-  context.renderStates.push({
-    type: 'Component',
-    prevActive: prevActive
-  });
-  renderNode(childNode, isRoot, context);
+
+  var resolve = function () {
+    var childNode = child._render();
+    childNode.parent = node;
+    context.renderStates.push({
+      type: 'Component',
+      prevActive: prevActive
+    });
+    renderNode(childNode, isRoot, context);
+  };
+
+  var reject = context.done;
+
+  waitForSsrPrefetch(child, resolve, reject);
 }
 
 function renderAsyncComponent (node, isRoot, context) {
@@ -7725,7 +8174,11 @@ function createRenderFunction (
     });
     installSSRHelpers(component);
     normalizeRender(component);
-    renderNode(component._render(), true, context);
+
+    var resolve = function () {
+      renderNode(component._render(), true, context);
+    };
+    waitForSsrPrefetch(component, resolve, done);
   }
 }
 
@@ -7948,6 +8401,11 @@ var TemplateRenderer = function TemplateRenderer (options) {
     ? parseTemplate(options.template)
     : null;
 
+  // function used to serialize initial state JSON
+  this.serialize = options.serializer || (function (state) {
+    return serialize(state, { isJSON: true })
+  });
+
   // extra functionality with client manifest
   if (options.clientManifest) {
     var clientManifest = this.clientManifest = options.clientManifest;
@@ -8101,10 +8559,11 @@ TemplateRenderer.prototype.renderState = function renderState (context, options)
   var ref = options || {};
     var contextKey = ref.contextKey; if ( contextKey === void 0 ) contextKey = 'state';
     var windowKey = ref.windowKey; if ( windowKey === void 0 ) windowKey = '__INITIAL_STATE__';
-  var state = serialize(context[contextKey], { isJSON: true });
+  var state = this.serialize(context[contextKey]);
   var autoRemove = '';
+  var nonceAttr = context.nonce ? (" nonce=\"" + (context.nonce) + "\"") : '';
   return context[contextKey]
-    ? ("<script>window." + windowKey + "=" + state + autoRemove + "</script>")
+    ? ("<script" + nonceAttr + ">window." + windowKey + "=" + state + autoRemove + "</script>")
     : ''
 };
 
@@ -8195,6 +8654,7 @@ function createRenderer (ref) {
   var shouldPreload = ref.shouldPreload;
   var shouldPrefetch = ref.shouldPrefetch;
   var clientManifest = ref.clientManifest;
+  var serializer = ref.serializer;
 
   var render = createRenderFunction(modules, directives, isUnaryTag, cache);
   var templateRenderer = new TemplateRenderer({
@@ -8202,7 +8662,8 @@ function createRenderer (ref) {
     inject: inject,
     shouldPreload: shouldPreload,
     shouldPrefetch: shouldPrefetch,
-    clientManifest: clientManifest
+    clientManifest: clientManifest,
+    serializer: serializer
   });
 
   return {
@@ -8234,6 +8695,9 @@ function createRenderer (ref) {
       }, cb);
       try {
         render(component, write, context, function (err) {
+          if (context && context.rendered) {
+            context.rendered(context);
+          }
           if (template) {
             result = templateRenderer.renderSync(result, context);
           }
@@ -8261,6 +8725,12 @@ function createRenderer (ref) {
         render(component, write, context, done);
       });
       if (!template) {
+        if (context && context.rendered) {
+          var rendered = context.rendered;
+          renderStream.once('beforeEnd', function () {
+            rendered(context);
+          });
+        }
         return renderStream
       } else {
         var templateStream = templateRenderer.createStream(context);
@@ -8268,6 +8738,12 @@ function createRenderer (ref) {
           templateStream.emit('error', err);
         });
         renderStream.pipe(templateStream);
+        if (context && context.rendered) {
+          var rendered$1 = context.rendered;
+          renderStream.once('beforeEnd', function () {
+            rendered$1(context);
+          });
+        }
         return templateStream
       }
     }
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 5cabfe6b407..14385377519 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?io():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var so=require("source-map").SourceMapConsumer,co=/\(([^)]+\.js):(\d+):(\d+)\)$/;function uo(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(co),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(co,c)}return e}return e}(e,t)}).join("\n"))}var lo=require("fs"),fo=require("path"),po=require("stream").PassThrough,vo="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function ho(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=Bi(t,r,n,a),p=new Gi({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=Ji()).promise,r=n.cb);var a="",s=dt(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){t&&t.rendered&&t.rendered(t),i&&(a=p.renderSync(a,t)),e?r(e):r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new vt(function(r,n){f(e,r,t,n)});if(i){var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:st,canBeLeftOpenTag:ct,modules:nt,directives:$(at,e.directives)}))}process.env.VUE_ENV="server";var mo=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&fo.isAbsolute(t)){if(!lo.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||fo.dirname(t),t=lo.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new so(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(vo)}else{if("string"!=typeof t)throw new Error(vo);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=ao(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=Ji()).promise,t=r.cb),u(e).catch(function(e){uo(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){uo(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new po;return u(e).catch(function(e){uo(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){uo(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(ho);exports.createRenderer=ho,exports.createBundleRenderer=mo;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 2f41650e739..66de323391d 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.5.22",
+  "version": "2.6.0-beta.1",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 3c522fb2dd2..4b240cdd647 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -1,8 +1,8 @@
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
   typeof define === 'function' && define.amd ? define(['exports'], factory) :
-  (factory((global.VueTemplateCompiler = {})));
-}(this, (function (exports) { 'use strict';
+  (global = global || self, factory(global.VueTemplateCompiler = {}));
+}(this, function (exports) { 'use strict';
 
   var splitRE = /\r?\n/g;
   var emptyRE = /^\s*$/;
@@ -174,6 +174,14 @@
     return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
   });
 
+  /**
+   * Hyphenate a camelCase string.
+   */
+  var hyphenateRE = /\B([A-Z])/g;
+  var hyphenate = cached(function (str) {
+    return str.replace(hyphenateRE, '-$1').toLowerCase()
+  });
+
   /**
    * Simple bind polyfill for environments that do not support it,
    * e.g., PhantomJS 1.x. Technically, we don't need this anymore
@@ -268,15 +276,34 @@
     'title,tr,track'
   );
 
+  /*  */
+
+  /**
+   * unicode letters used for parsing html tags, component names and property paths.
+   * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+   * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+   */
+  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
+  /**
+   * Define a property.
+   */
+  function def (obj, key, val, enumerable) {
+    Object.defineProperty(obj, key, {
+      value: val,
+      enumerable: !!enumerable,
+      writable: true,
+      configurable: true
+    });
+  }
+
   /**
    * Not type-checking this file because it's mostly vendor code.
    */
 
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-  // could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-  // but for Vue templates we can enforce a simple charset
-  var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
   var startTagClose = /^\s*(\/?)>/;
@@ -329,7 +356,7 @@
 
             if (commentEnd >= 0) {
               if (options.shouldKeepComment) {
-                options.comment(html.substring(4, commentEnd));
+                options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
               }
               advance(commentEnd + 3);
               continue
@@ -389,16 +416,18 @@
             rest = html.slice(textEnd);
           }
           text = html.substring(0, textEnd);
-          advance(textEnd);
         }
 
         if (textEnd < 0) {
           text = html;
-          html = '';
+        }
+
+        if (text) {
+          advance(text.length);
         }
 
         if (options.chars && text) {
-          options.chars(text);
+          options.chars(text, index - text.length, index);
         }
       } else {
         var endTagLength = 0;
@@ -427,7 +456,7 @@
       if (html === last) {
         options.chars && options.chars(html);
         if (!stack.length && options.warn) {
-          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+          options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
         }
         break
       }
@@ -452,7 +481,9 @@
         advance(start[0].length);
         var end, attr;
         while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+          attr.start = index;
           advance(attr[0].length);
+          attr.end = index;
           match.attrs.push(attr);
         }
         if (end) {
@@ -491,10 +522,14 @@
           name: args[1],
           value: decodeAttr(value, shouldDecodeNewlines)
         };
+        if (options.outputSourceRange) {
+          attrs[i].start = args.start + args[0].match(/^\s*/).length;
+          attrs[i].end = args.end;
+        }
       }
 
       if (!unary) {
-        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+        stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
         lastTag = tagName;
       }
 
@@ -528,7 +563,8 @@
             options.warn
           ) {
             options.warn(
-              ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+              ("tag <" + (stack[i].tag) + "> has no matching end tag."),
+              { start: stack[i].start }
             );
           }
           if (options.end) {
@@ -560,8 +596,6 @@
   var replaceRE = /./g;
   var isSpecialTag = makeMap('script,style,template', true);
 
-
-
   /**
    * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
    */
@@ -575,11 +609,29 @@
       template: null,
       script: null,
       styles: [],
-      customBlocks: []
+      customBlocks: [],
+      errors: []
     };
     var depth = 0;
     var currentBlock = null;
 
+    var warn = function (msg) {
+      sfc.errors.push(msg);
+    };
+
+    if (options.outputSourceRange) {
+      warn = function (msg, range) {
+        var data = { msg: msg };
+        if (range.start != null) {
+          data.start = range.start;
+        }
+        if (range.end != null) {
+          data.end = range.end;
+        }
+        sfc.errors.push(data);
+      };
+    }
+
     function start (
       tag,
       attrs,
@@ -637,7 +689,10 @@
     function end (tag, start) {
       if (depth === 1 && currentBlock) {
         currentBlock.end = start;
-        var text = deIndent(content.slice(currentBlock.start, currentBlock.end));
+        var text = content.slice(currentBlock.start, currentBlock.end);
+        if (options.deindent !== false) {
+          text = deIndent(text);
+        }
         // pad content so that linters and pre-processors can output correct
         // line numbers in errors and warnings
         if (currentBlock.type !== 'template' && options.pad) {
@@ -662,8 +717,10 @@
     }
 
     parseHTML(content, {
+      warn: warn,
       start: start,
-      end: end
+      end: end,
+      outputSourceRange: options.outputSourceRange
     });
 
     return sfc
@@ -671,20 +728,6 @@
 
   /*  */
 
-  /**
-   * Define a property.
-   */
-  function def (obj, key, val, enumerable) {
-    Object.defineProperty(obj, key, {
-      value: val,
-      enumerable: !!enumerable,
-      writable: true,
-      configurable: true
-    });
-  }
-
-  /*  */
-
   // can we use __proto__?
   var hasProto = '__proto__' in {};
 
@@ -699,6 +742,7 @@
   var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+  var isPhantomJS = UA && /phantomjs/.test(UA);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -784,7 +828,8 @@
     'destroyed',
     'activated',
     'deactivated',
-    'errorCaptured'
+    'errorCaptured',
+    'ssrPrefetch'
   ];
 
   /*  */
@@ -1360,9 +1405,15 @@
   function mergeData (to, from) {
     if (!from) { return to }
     var key, toVal, fromVal;
-    var keys = Object.keys(from);
+
+    var keys = hasSymbol
+      ? Reflect.ownKeys(from)
+      : Object.keys(from);
+
     for (var i = 0; i < keys.length; i++) {
       key = keys[i];
+      // in case the object is already observed...
+      if (key === '__ob__') { continue }
       toVal = to[key];
       fromVal = from[key];
       if (!hasOwn(to, key)) {
@@ -1598,23 +1649,28 @@
     }
   }
 
-  // Determine (macro) task defer implementation.
-  // Technically setImmediate should be the ideal choice, but it's only available
-  // in IE. The only polyfill that consistently queues the callback after all DOM
-  // events triggered in the same loop is by using MessageChannel.
-  /* istanbul ignore if */
-  if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
-    isNative(MessageChannel) ||
-    // PhantomJS
-    MessageChannel.toString() === '[object MessageChannelConstructor]'
-  )) {
-    var channel = new MessageChannel();
-    channel.port1.onmessage = flushCallbacks;
-  }
-
-  // Determine microtask defer implementation.
+  // The nextTick behavior leverages the microtask queue, which can be accessed
+  // via either native Promise.then or MutationObserver.
+  // MutationObserver has wider support, however it is seriously bugged in
+  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+  // completely stops working after triggering a few times... so, if native
+  // Promise is available, we will use it:
   /* istanbul ignore next, $flow-disable-line */
-  if (typeof Promise !== 'undefined' && isNative(Promise)) ;
+  if (typeof Promise !== 'undefined' && isNative(Promise)) ; else if (!isIE && typeof MutationObserver !== 'undefined' && (
+    isNative(MutationObserver) ||
+    // PhantomJS and iOS 7.x
+    MutationObserver.toString() === '[object MutationObserverConstructor]'
+  )) {
+    // Use MutationObserver where native Promise is not available,
+    // e.g. PhantomJS, iOS7, Android 4.4
+    // (#6466 MutationObserver is unreliable in IE11)
+    var counter = 1;
+    var observer = new MutationObserver(flushCallbacks);
+    var textNode = document.createTextNode(String(counter));
+    observer.observe(textNode, {
+      characterData: true
+    });
+  } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ;
 
   /*  */
 
@@ -1842,9 +1898,13 @@
 
   /*  */
 
-  function baseWarn (msg) {
+
+
+  /* eslint-disable no-unused-vars */
+  function baseWarn (msg, range) {
     console.error(("[Vue compiler]: " + msg));
   }
+  /* eslint-enable no-unused-vars */
 
   function pluckModuleFunction (
     modules,
@@ -1855,20 +1915,20 @@
       : []
   }
 
-  function addProp (el, name, value) {
-    (el.props || (el.props = [])).push({ name: name, value: value });
+  function addProp (el, name, value, range) {
+    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
     el.plain = false;
   }
 
-  function addAttr (el, name, value) {
-    (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+  function addAttr (el, name, value, range) {
+    (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
     el.plain = false;
   }
 
   // add a raw attr (use this in preTransforms)
-  function addRawAttr (el, name, value) {
+  function addRawAttr (el, name, value, range) {
     el.attrsMap[name] = value;
-    el.attrsList.push({ name: name, value: value });
+    el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
   }
 
   function addDirective (
@@ -1877,9 +1937,10 @@
     rawName,
     value,
     arg,
-    modifiers
+    modifiers,
+    range
   ) {
-    (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+    (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
     el.plain = false;
   }
 
@@ -1889,7 +1950,8 @@
     value,
     modifiers,
     important,
-    warn
+    warn,
+    range
   ) {
     modifiers = modifiers || emptyObject;
     // warn prevent and passive modifier
@@ -1900,7 +1962,8 @@
     ) {
       warn(
         'passive and prevent can\'t be used together. ' +
-        'Passive handler can\'t prevent default event.'
+        'Passive handler can\'t prevent default event.',
+        range
       );
     }
 
@@ -1939,9 +2002,7 @@
       events = el.events || (el.events = {});
     }
 
-    var newHandler = {
-      value: value.trim()
-    };
+    var newHandler = rangeSetItem({ value: value.trim() }, range);
     if (modifiers !== emptyObject) {
       newHandler.modifiers = modifiers;
     }
@@ -1959,6 +2020,15 @@
     el.plain = false;
   }
 
+  function getRawBindingAttr (
+    el,
+    name
+  ) {
+    return el.rawAttrsMap[':' + name] ||
+      el.rawAttrsMap['v-bind:' + name] ||
+      el.rawAttrsMap[name]
+  }
+
   function getBindingAttr (
     el,
     name,
@@ -2002,6 +2072,21 @@
     return val
   }
 
+  function rangeSetItem (
+    item,
+    range
+  ) {
+    if (range) {
+      if (range.start != null) {
+        item.start = range.start;
+      }
+      if (range.end != null) {
+        item.end = range.end;
+      }
+    }
+    return item
+  }
+
   /*  */
 
   function transformNode (el, options) {
@@ -2014,7 +2099,8 @@
           "class=\"" + staticClass + "\": " +
           'Interpolation inside attributes has been removed. ' +
           'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div class="{{ val }}">, use <div :class="val">.'
+          'instead of <div class="{{ val }}">, use <div :class="val">.',
+          el.rawAttrsMap['class']
         );
       }
     }
@@ -2073,7 +2159,8 @@
             "style=\"" + staticStyle + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div style="{{ val }}">, use <div :style="val">.'
+            'instead of <div style="{{ val }}">, use <div :style="val">.',
+            el.rawAttrsMap['style']
           );
         }
       }
@@ -2599,15 +2686,19 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:/;
+  var dirRE = /^v-|^@|^:|^\./;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
 
   var argRE = /:(.*)$/;
-  var bindRE = /^:|^v-bind:/;
+  var bindRE = /^:|^\.|^v-bind:/;
+  var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
+  var lineBreakRE = /[\r\n]/;
+  var whitespaceRE = /\s+/g;
+
   var decodeHTMLCached = cached(he.decode);
 
   // configurable state
@@ -2620,8 +2711,6 @@
   var platformMustUseProp;
   var platformGetTagNamespace;
 
-
-
   function createASTElement (
     tag,
     attrs,
@@ -2632,6 +2721,7 @@
       tag: tag,
       attrsList: attrs,
       attrsMap: makeAttrsMap(attrs),
+      rawAttrsMap: {},
       parent: parent,
       children: []
     }
@@ -2649,6 +2739,7 @@
     platformIsPreTag = options.isPreTag || no;
     platformMustUseProp = options.mustUseProp || no;
     platformGetTagNamespace = options.getTagNamespace || no;
+    var isReservedTag = options.isReservedTag || no;
 
     transforms = pluckModuleFunction(options.modules, 'transformNode');
     preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -2658,20 +2749,55 @@
 
     var stack = [];
     var preserveWhitespace = options.preserveWhitespace !== false;
+    var whitespaceOption = options.whitespace;
     var root;
     var currentParent;
     var inVPre = false;
     var inPre = false;
     var warned = false;
 
-    function warnOnce (msg) {
+    function warnOnce (msg, range) {
       if (!warned) {
         warned = true;
-        warn$1(msg);
+        warn$1(msg, range);
       }
     }
 
     function closeElement (element) {
+      if (!inVPre && !element.processed) {
+        element = processElement(element, options);
+      }
+      // tree management
+      if (!stack.length && element !== root) {
+        // allow root elements with v-if, v-else-if and v-else
+        if (root.if && (element.elseif || element.else)) {
+          {
+            checkRootConstraints(element);
+          }
+          addIfCondition(root, {
+            exp: element.elseif,
+            block: element
+          });
+        } else {
+          warnOnce(
+            "Component template should contain exactly one root element. " +
+            "If you are using v-if on multiple elements, " +
+            "use v-else-if to chain them instead.",
+            { start: element.start }
+          );
+        }
+      }
+      if (currentParent && !element.forbidden) {
+        if (element.elseif || element.else) {
+          processIfConditions(element, currentParent);
+        } else if (element.slotScope) { // scoped slot
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        } else {
+          currentParent.children.push(element);
+          element.parent = currentParent;
+        }
+      }
       // check pre state
       if (element.pre) {
         inVPre = false;
@@ -2685,6 +2811,23 @@
       }
     }
 
+    function checkRootConstraints (el) {
+      if (el.tag === 'slot' || el.tag === 'template') {
+        warnOnce(
+          "Cannot use <" + (el.tag) + "> as component root element because it may " +
+          'contain multiple nodes.',
+          { start: el.start }
+        );
+      }
+      if (el.attrsMap.hasOwnProperty('v-for')) {
+        warnOnce(
+          'Cannot use v-for on stateful component root element because ' +
+          'it renders multiple elements.',
+          el.rawAttrsMap['v-for']
+        );
+      }
+    }
+
     parseHTML(template, {
       warn: warn$1,
       expectHTML: options.expectHTML,
@@ -2693,7 +2836,8 @@
       shouldDecodeNewlines: options.shouldDecodeNewlines,
       shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
       shouldKeepComment: options.comments,
-      start: function start (tag, attrs, unary) {
+      outputSourceRange: options.outputSourceRange,
+      start: function start (tag, attrs, unary, start$1) {
         // check namespace.
         // inherit parent ns if there is one
         var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -2709,12 +2853,21 @@
           element.ns = ns;
         }
 
+        if (options.outputSourceRange) {
+          element.start = start$1;
+          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+
         if (isForbiddenTag(element) && !isServerRendering()) {
           element.forbidden = true;
           warn$1(
             'Templates should only be responsible for mapping the state to the ' +
             'UI. Avoid placing tags with side-effects in your templates, such as ' +
-            "<" + tag + ">" + ', as they will not be parsed.'
+            "<" + tag + ">" + ', as they will not be parsed.',
+            { start: element.start }
           );
         }
 
@@ -2739,59 +2892,15 @@
           processFor(element);
           processIf(element);
           processOnce(element);
-          // element-scope stuff
-          processElement(element, options);
         }
 
-        function checkRootConstraints (el) {
-          {
-            if (el.tag === 'slot' || el.tag === 'template') {
-              warnOnce(
-                "Cannot use <" + (el.tag) + "> as component root element because it may " +
-                'contain multiple nodes.'
-              );
-            }
-            if (el.attrsMap.hasOwnProperty('v-for')) {
-              warnOnce(
-                'Cannot use v-for on stateful component root element because ' +
-                'it renders multiple elements.'
-              );
-            }
-          }
-        }
-
-        // tree management
         if (!root) {
           root = element;
-          checkRootConstraints(root);
-        } else if (!stack.length) {
-          // allow root elements with v-if, v-else-if and v-else
-          if (root.if && (element.elseif || element.else)) {
-            checkRootConstraints(element);
-            addIfCondition(root, {
-              exp: element.elseif,
-              block: element
-            });
-          } else {
-            warnOnce(
-              "Component template should contain exactly one root element. " +
-              "If you are using v-if on multiple elements, " +
-              "use v-else-if to chain them instead."
-            );
-          }
-        }
-        if (currentParent && !element.forbidden) {
-          if (element.elseif || element.else) {
-            processIfConditions(element, currentParent);
-          } else if (element.slotScope) { // scoped slot
-            currentParent.plain = false;
-            var name = element.slotTarget || '"default"'
-            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-          } else {
-            currentParent.children.push(element);
-            element.parent = currentParent;
+          {
+            checkRootConstraints(root);
           }
         }
+
         if (!unary) {
           currentParent = element;
           stack.push(element);
@@ -2800,29 +2909,36 @@
         }
       },
 
-      end: function end () {
-        // remove trailing whitespace
+      end: function end (tag, start, end$1) {
         var element = stack[stack.length - 1];
-        var lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-          element.children.pop();
+        if (!inPre) {
+          // remove trailing whitespace node
+          var lastNode = element.children[element.children.length - 1];
+          if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+            element.children.pop();
+          }
         }
         // pop stack
         stack.length -= 1;
         currentParent = stack[stack.length - 1];
+        if (options.outputSourceRange) {
+          element.end = end$1;
+        }
         closeElement(element);
       },
 
-      chars: function chars (text) {
+      chars: function chars (text, start, end) {
         if (!currentParent) {
           {
             if (text === template) {
               warnOnce(
-                'Component template requires a root element, rather than just text.'
+                'Component template requires a root element, rather than just text.',
+                { start: start }
               );
             } else if ((text = text.trim())) {
               warnOnce(
-                ("text \"" + text + "\" outside root element will be ignored.")
+                ("text \"" + text + "\" outside root element will be ignored."),
+                { start: start }
               );
             }
           }
@@ -2837,33 +2953,62 @@
           return
         }
         var children = currentParent.children;
-        text = inPre || text.trim()
-          ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-          // only preserve whitespace if its not right after a starting tag
-          : preserveWhitespace && children.length ? ' ' : '';
+        if (inPre || text.trim()) {
+          text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+        } else if (!children.length) {
+          // remove the whitespace-only node right after an opening tag
+          text = '';
+        } else if (whitespaceOption) {
+          if (whitespaceOption === 'condense') {
+            // in condense mode, remove the whitespace node if it contains
+            // line break, otherwise condense to a single space
+            text = lineBreakRE.test(text) ? '' : ' ';
+          } else {
+            text = ' ';
+          }
+        } else {
+          text = preserveWhitespace ? ' ' : '';
+        }
         if (text) {
+          if (whitespaceOption === 'condense') {
+            // condense consecutive whitespaces into single space
+            text = text.replace(whitespaceRE, ' ');
+          }
           var res;
+          var child;
           if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-            children.push({
+            child = {
               type: 2,
               expression: res.expression,
               tokens: res.tokens,
               text: text
-            });
+            };
           } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-            children.push({
+            child = {
               type: 3,
               text: text
-            });
+            };
+          }
+          if (child) {
+            if (options.outputSourceRange) {
+              child.start = start;
+              child.end = end;
+            }
+            children.push(child);
           }
         }
       },
-      comment: function comment (text) {
-        currentParent.children.push({
+      comment: function comment (text, start, end) {
+        var child = {
           type: 3,
           text: text,
           isComment: true
-        });
+        };
+        if (options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
     });
     return root
@@ -2876,14 +3021,19 @@
   }
 
   function processRawAttrs (el) {
-    var l = el.attrsList.length;
-    if (l) {
-      var attrs = el.attrs = new Array(l);
-      for (var i = 0; i < l; i++) {
+    var list = el.attrsList;
+    var len = list.length;
+    if (len) {
+      var attrs = el.attrs = new Array(len);
+      for (var i = 0; i < len; i++) {
         attrs[i] = {
-          name: el.attrsList[i].name,
-          value: JSON.stringify(el.attrsList[i].value)
+          name: list[i].name,
+          value: JSON.stringify(list[i].value)
         };
+        if (list[i].start != null) {
+          attrs[i].start = list[i].start;
+          attrs[i].end = list[i].end;
+        }
       }
     } else if (!el.pre) {
       // non root node in pre blocks with no attributes
@@ -2891,20 +3041,29 @@
     }
   }
 
-  function processElement (element, options) {
+  function processElement (
+    element,
+    options
+  ) {
     processKey(element);
 
     // determine whether this is a plain element after
     // removing structural attributes
-    element.plain = !element.key && !element.attrsList.length;
+    element.plain = (
+      !element.key &&
+      !element.scopedSlots &&
+      !element.attrsList.length
+    );
 
     processRef(element);
-    processSlot(element);
+    processSlotContent(element);
+    processSlotOutlet(element);
     processComponent(element);
     for (var i = 0; i < transforms.length; i++) {
       element = transforms[i](element, options) || element;
     }
     processAttrs(element);
+    return element
   }
 
   function processKey (el) {
@@ -2912,7 +3071,10 @@
     if (exp) {
       {
         if (el.tag === 'template') {
-          warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+          warn$1(
+            "<template> cannot be keyed. Place the key on real elements instead.",
+            getRawBindingAttr(el, 'key')
+          );
         }
         if (el.for) {
           var iterator = el.iterator2 || el.iterator1;
@@ -2920,7 +3082,9 @@
           if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
             warn$1(
               "Do not use v-for index as key on <transition-group> children, " +
-              "this is the same as not using keys."
+              "this is the same as not using keys.",
+              getRawBindingAttr(el, 'key'),
+              true /* tip */
             );
           }
         }
@@ -2945,7 +3109,8 @@
         extend(el, res);
       } else {
         warn$1(
-          ("Invalid v-for expression: " + exp)
+          ("Invalid v-for expression: " + exp),
+          el.rawAttrsMap['v-for']
         );
       }
     }
@@ -3001,7 +3166,8 @@
     } else {
       warn$1(
         "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-        "used on element <" + (el.tag) + "> without corresponding v-if."
+        "used on element <" + (el.tag) + "> without corresponding v-if.",
+        el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
       );
     }
   }
@@ -3015,7 +3181,8 @@
         if (children[i].text !== ' ') {
           warn$1(
             "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-            "will be ignored."
+            "will be ignored.",
+            children[i]
           );
         }
         children.pop();
@@ -3037,52 +3204,65 @@
     }
   }
 
-  function processSlot (el) {
+  // handle content being passed to a component as slot,
+  // e.g. <template slot="xxx">, <div slot-scope="xxx">
+  function processSlotContent (el) {
+    var slotScope;
+    if (el.tag === 'template') {
+      slotScope = getAndRemoveAttr(el, 'scope');
+      /* istanbul ignore if */
+      if (slotScope) {
+        warn$1(
+          "the \"scope\" attribute for scoped slots have been deprecated and " +
+          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+          "can also be used on plain elements in addition to <template> to " +
+          "denote scoped slots.",
+          el.rawAttrsMap['scope'],
+          true
+        );
+      }
+      el.slotScope = (
+        slotScope ||
+        getAndRemoveAttr(el, 'slot-scope')
+      );
+    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+      /* istanbul ignore if */
+      if (el.attrsMap['v-for']) {
+        warn$1(
+          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+          "(v-for takes higher priority). Use a wrapper <template> for the " +
+          "scoped slot to make it clearer.",
+          el.rawAttrsMap['slot-scope'],
+          true
+        );
+      }
+      el.slotScope = slotScope;
+    }
+
+    // slot="xxx"
+    var slotTarget = getBindingAttr(el, 'slot');
+    if (slotTarget) {
+      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      // preserve slot as an attribute for native shadow DOM compat
+      // only for non-scoped slots.
+      if (el.tag !== 'template' && !el.slotScope) {
+        addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+      }
+    }
+  }
+
+  // handle <slot/> outlets
+  function processSlotOutlet (el) {
     if (el.tag === 'slot') {
       el.slotName = getBindingAttr(el, 'name');
       if (el.key) {
         warn$1(
           "`key` does not work on <slot> because slots are abstract outlets " +
           "and can possibly expand into multiple elements. " +
-          "Use the key on a wrapping element instead."
+          "Use the key on a wrapping element instead.",
+          getRawBindingAttr(el, 'key')
         );
       }
-    } else {
-      var slotScope;
-      if (el.tag === 'template') {
-        slotScope = getAndRemoveAttr(el, 'scope');
-        /* istanbul ignore if */
-        if (slotScope) {
-          warn$1(
-            "the \"scope\" attribute for scoped slots have been deprecated and " +
-            "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-            "can also be used on plain elements in addition to <template> to " +
-            "denote scoped slots.",
-            true
-          );
-        }
-        el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-      } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-        /* istanbul ignore if */
-        if (el.attrsMap['v-for']) {
-          warn$1(
-            "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-            "(v-for takes higher priority). Use a wrapper <template> for the " +
-            "scoped slot to make it clearer.",
-            true
-          );
-        }
-        el.slotScope = slotScope;
-      }
-      var slotTarget = getBindingAttr(el, 'slot');
-      if (slotTarget) {
-        el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-        // preserve slot as an attribute for native shadow DOM compat
-        // only for non-scoped slots.
-        if (el.tag !== 'template' && !el.slotScope) {
-          addAttr(el, 'slot', slotTarget);
-        }
-      }
     }
   }
 
@@ -3098,7 +3278,7 @@
 
   function processAttrs (el) {
     var list = el.attrsList;
-    var i, l, name, rawName, value, modifiers, isProp;
+    var i, l, name, rawName, value, modifiers, isProp, syncGen;
     for (i = 0, l = list.length; i < l; i++) {
       name = rawName = list[i].name;
       value = list[i].value;
@@ -3106,8 +3286,12 @@
         // mark element as dynamic
         el.hasBindings = true;
         // modifiers
-        modifiers = parseModifiers(name);
-        if (modifiers) {
+        modifiers = parseModifiers(name.replace(dirRE, ''));
+        // support .foo shorthand syntax for the .prop modifier
+        if (propBindRE.test(name)) {
+          (modifiers || (modifiers = {})).prop = true;
+          name = "." + name.slice(1).replace(modifierRE, '');
+        } else if (modifiers) {
           name = name.replace(modifierRE, '');
         }
         if (bindRE.test(name)) { // v-bind
@@ -3131,23 +3315,39 @@
               name = camelize(name);
             }
             if (modifiers.sync) {
+              syncGen = genAssignmentCode(value, "$event");
               addHandler(
                 el,
                 ("update:" + (camelize(name))),
-                genAssignmentCode(value, "$event")
+                syncGen,
+                null,
+                false,
+                warn$1,
+                list[i]
               );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  ("update:" + (hyphenate(name))),
+                  syncGen,
+                  null,
+                  false,
+                  warn$1,
+                  list[i]
+                );
+              }
             }
           }
           if (isProp || (
             !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
           )) {
-            addProp(el, name, value);
+            addProp(el, name, value, list[i]);
           } else {
-            addAttr(el, name, value);
+            addAttr(el, name, value, list[i]);
           }
         } else if (onRE.test(name)) { // v-on
           name = name.replace(onRE, '');
-          addHandler(el, name, value, modifiers, false, warn$1);
+          addHandler(el, name, value, modifiers, false, warn$1, list[i]);
         } else { // normal directives
           name = name.replace(dirRE, '');
           // parse arg
@@ -3156,7 +3356,7 @@
           if (arg) {
             name = name.slice(0, -(arg.length + 1));
           }
-          addDirective(el, name, rawName, value, arg, modifiers);
+          addDirective(el, name, rawName, value, arg, modifiers, list[i]);
           if (name === 'model') {
             checkForAliasModel(el, value);
           }
@@ -3170,17 +3370,18 @@
               name + "=\"" + value + "\": " +
               'Interpolation inside attributes has been removed. ' +
               'Use v-bind or the colon shorthand instead. For example, ' +
-              'instead of <div id="{{ val }}">, use <div :id="val">.'
+              'instead of <div id="{{ val }}">, use <div :id="val">.',
+              list[i]
             );
           }
         }
-        addAttr(el, name, JSON.stringify(value));
+        addAttr(el, name, JSON.stringify(value), list[i]);
         // #6887 firefox doesn't update muted state if set via attribute
         // even immediately after element creation
         if (!el.component &&
             name === 'muted' &&
             platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-          addProp(el, name, 'true');
+          addProp(el, name, 'true', list[i]);
         }
       }
     }
@@ -3212,7 +3413,7 @@
       if (
         map[attrs[i].name] && !isIE && !isEdge
       ) {
-        warn$1('duplicate attribute: ' + attrs[i].name);
+        warn$1('duplicate attribute: ' + attrs[i].name, attrs[i]);
       }
       map[attrs[i].name] = attrs[i].value;
     }
@@ -3259,7 +3460,8 @@
           "You are binding v-model directly to a v-for iteration alias. " +
           "This will not be able to modify the v-for source array because " +
           "writing to the alias is like modifying a function local variable. " +
-          "Consider using an array of objects and use v-model on an object property instead."
+          "Consider using an array of objects and use v-model on an object property instead.",
+          el.rawAttrsMap['v-model']
         );
       }
       _el = _el.parent;
@@ -3369,7 +3571,8 @@
       if (tag === 'input' && type === 'file') {
         warn$2(
           "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-          "File inputs are read only. Use a v-on:change listener instead."
+          "File inputs are read only. Use a v-on:change listener instead.",
+          el.rawAttrsMap['v-model']
         );
       }
     }
@@ -3472,7 +3675,8 @@
         var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
         warn$2(
           binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-          'because the latter already expands to a value binding internally'
+          'because the latter already expands to a value binding internally',
+          el.rawAttrsMap[binding]
         );
       }
     }
@@ -3512,7 +3716,7 @@
 
   function text (el, dir) {
     if (dir.value) {
-      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+      addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
     }
   }
 
@@ -3520,7 +3724,7 @@
 
   function html (el, dir) {
     if (dir.value) {
-      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+      addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
     }
   }
 
@@ -3575,7 +3779,7 @@
 
   function genStaticKeys$1 (keys) {
     return makeMap(
-      'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+      'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
       (keys ? ',' + keys : '')
     )
   }
@@ -3675,6 +3879,7 @@
   /*  */
 
   var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
   // KeyboardEvent.keyCode aliases
@@ -3750,12 +3955,13 @@
 
     var isMethodPath = simplePathRE.test(handler.value);
     var isFunctionExpression = fnExpRE.test(handler.value);
+    var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
 
     if (!handler.modifiers) {
       if (isMethodPath || isFunctionExpression) {
         return handler.value
       }
-      return ("function($event){" + (handler.value) + "}") // inline statement
+      return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
     } else {
       var code = '';
       var genModifierCode = '';
@@ -3790,7 +3996,9 @@
         ? ("return " + (handler.value) + "($event)")
         : isFunctionExpression
           ? ("return (" + (handler.value) + ")($event)")
-          : handler.value;
+          : isFunctionInvocation
+            ? ("return " + (handler.value))
+            : handler.value;
       return ("function($event){" + code + handlerCode + "}")
     }
   }
@@ -3854,7 +4062,7 @@
     this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
     this.directives = extend(extend({}, baseDirectives), options.directives);
     var isReservedTag = options.isReservedTag || no;
-    this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+    this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
     this.onceId = 0;
     this.staticRenderFns = [];
     this.pre = false;
@@ -3945,7 +4153,8 @@
       }
       if (!key) {
         state.warn(
-          "v-once can only be used inside v-for that is keyed. "
+          "v-once can only be used inside v-for that is keyed. ",
+          el.rawAttrsMap['v-once']
         );
         return genElement(el, state)
       }
@@ -4012,6 +4221,7 @@
         "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
         "v-for should have explicit keys. " +
         "See https://vuejs.org/guide/list.html#key for more info.",
+        el.rawAttrsMap['v-for'],
         true /* tip */
       );
     }
@@ -4129,7 +4339,10 @@
   function genInlineTemplate (el, state) {
     var ast = el.children[0];
     if (el.children.length !== 1 || ast.type !== 1) {
-      state.warn('Inline-template components must have exactly one child element.');
+      state.warn(
+        'Inline-template components must have exactly one child element.',
+        { start: el.start }
+      );
     }
     if (ast.type === 1) {
       var inlineRenderFns = generate(ast, state.options);
@@ -4308,6 +4521,8 @@
 
   /*  */
 
+
+
   // these keywords should not appear inside expressions, but operators like
   // typeof, instanceof and in are allowed
   var prohibitedKeywordRE = new RegExp('\\b' + (
@@ -4325,89 +4540,92 @@
   var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
   // detect problematic expressions in a template
-  function detectErrors (ast) {
-    var errors = [];
+  function detectErrors (ast, warn) {
     if (ast) {
-      checkNode(ast, errors);
+      checkNode(ast, warn);
     }
-    return errors
   }
 
-  function checkNode (node, errors) {
+  function checkNode (node, warn) {
     if (node.type === 1) {
       for (var name in node.attrsMap) {
         if (dirRE.test(name)) {
           var value = node.attrsMap[name];
           if (value) {
+            var range = node.rawAttrsMap[name];
             if (name === 'v-for') {
-              checkFor(node, ("v-for=\"" + value + "\""), errors);
+              checkFor(node, ("v-for=\"" + value + "\""), warn, range);
             } else if (onRE.test(name)) {
-              checkEvent(value, (name + "=\"" + value + "\""), errors);
+              checkEvent(value, (name + "=\"" + value + "\""), warn, range);
             } else {
-              checkExpression(value, (name + "=\"" + value + "\""), errors);
+              checkExpression(value, (name + "=\"" + value + "\""), warn, range);
             }
           }
         }
       }
       if (node.children) {
         for (var i = 0; i < node.children.length; i++) {
-          checkNode(node.children[i], errors);
+          checkNode(node.children[i], warn);
         }
       }
     } else if (node.type === 2) {
-      checkExpression(node.expression, node.text, errors);
+      checkExpression(node.expression, node.text, warn, node);
     }
   }
 
-  function checkEvent (exp, text, errors) {
+  function checkEvent (exp, text, warn, range) {
     var stipped = exp.replace(stripStringRE, '');
     var keywordMatch = stipped.match(unaryOperatorsRE);
     if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-      errors.push(
+      warn(
         "avoid using JavaScript unary operator as property name: " +
-        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
+        range
       );
     }
-    checkExpression(exp, text, errors);
+    checkExpression(exp, text, warn, range);
   }
 
-  function checkFor (node, text, errors) {
-    checkExpression(node.for || '', text, errors);
-    checkIdentifier(node.alias, 'v-for alias', text, errors);
-    checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-    checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+  function checkFor (node, text, warn, range) {
+    checkExpression(node.for || '', text, warn, range);
+    checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+    checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+    checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
   }
 
   function checkIdentifier (
     ident,
     type,
     text,
-    errors
+    warn,
+    range
   ) {
     if (typeof ident === 'string') {
       try {
         new Function(("var " + ident + "=_"));
       } catch (e) {
-        errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+        warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
       }
     }
   }
 
-  function checkExpression (exp, text, errors) {
+  function checkExpression (exp, text, warn, range) {
     try {
       new Function(("return " + exp));
     } catch (e) {
       var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
       if (keywordMatch) {
-        errors.push(
+        warn(
           "avoid using JavaScript keyword as property name: " +
-          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+          "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
+          range
         );
       } else {
-        errors.push(
+        warn(
           "invalid expression: " + (e.message) + " in\n\n" +
           "    " + exp + "\n\n" +
-          "  Raw expression: " + (text.trim()) + "\n"
+          "  Raw expression: " + (text.trim()) + "\n",
+          range
         );
       }
     }
@@ -4415,6 +4633,58 @@
 
   /*  */
 
+  var range = 2;
+
+  function generateCodeFrame (
+    source,
+    start,
+    end
+  ) {
+    if ( start === void 0 ) start = 0;
+    if ( end === void 0 ) end = source.length;
+
+    var lines = source.split(/\r?\n/);
+    var count = 0;
+    var res = [];
+    for (var i = 0; i < lines.length; i++) {
+      count += lines[i].length + 1;
+      if (count >= start) {
+        for (var j = i - range; j <= i + range || end > count; j++) {
+          if (j < 0 || j >= lines.length) { continue }
+          res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
+          var lineLength = lines[j].length;
+          if (j === i) {
+            // push underline
+            var pad = start - (count - lineLength) + 1;
+            var length = end > count ? lineLength - pad : end - start;
+            res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
+          } else if (j > i) {
+            if (end > count) {
+              var length$1 = Math.min(end - count, lineLength);
+              res.push("   |  " + repeat$1("^", length$1));
+            }
+            count += lineLength + 1;
+          }
+        }
+        break
+      }
+    }
+    return res.join('\n')
+  }
+
+  function repeat$1 (str, n) {
+    var result = '';
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
+    return result
+  }
+
+  /*  */
+
 
 
   function createFunction (code, errors) {
@@ -4470,14 +4740,28 @@
       // check compilation errors/tips
       {
         if (compiled.errors && compiled.errors.length) {
-          warn$$1(
-            "Error compiling template:\n\n" + template + "\n\n" +
-            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-            vm
-          );
+          if (options.outputSourceRange) {
+            compiled.errors.forEach(function (e) {
+              warn$$1(
+                "Error compiling template:\n\n" + (e.msg) + "\n\n" +
+                generateCodeFrame(template, e.start, e.end),
+                vm
+              );
+            });
+          } else {
+            warn$$1(
+              "Error compiling template:\n\n" + template + "\n\n" +
+              compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+              vm
+            );
+          }
         }
         if (compiled.tips && compiled.tips.length) {
-          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+          if (options.outputSourceRange) {
+            compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
+          } else {
+            compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+          }
         }
       }
 
@@ -4523,11 +4807,29 @@
         var finalOptions = Object.create(baseOptions);
         var errors = [];
         var tips = [];
-        finalOptions.warn = function (msg, tip) {
+
+        var warn = function (msg, range, tip) {
           (tip ? tips : errors).push(msg);
         };
 
         if (options) {
+          if (options.outputSourceRange) {
+            // $flow-disable-line
+            var leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+            warn = function (msg, range, tip) {
+              var data = { msg: msg };
+              if (range) {
+                if (range.start != null) {
+                  data.start = range.start + leadingSpaceLength;
+                }
+                if (range.end != null) {
+                  data.end = range.end + leadingSpaceLength;
+                }
+              }
+              (tip ? tips : errors).push(data);
+            };
+          }
           // merge custom modules
           if (options.modules) {
             finalOptions.modules =
@@ -4548,9 +4850,11 @@
           }
         }
 
-        var compiled = baseCompile(template, finalOptions);
+        finalOptions.warn = warn;
+
+        var compiled = baseCompile(template.trim(), finalOptions);
         {
-          errors.push.apply(errors, detectErrors(compiled.ast));
+          detectErrors(compiled.ast, warn);
         }
         compiled.errors = errors;
         compiled.tips = tips;
@@ -4645,8 +4949,6 @@
 
 
 
-
-
   var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
   // let the model AST transform translate v-model into appropriate
@@ -4827,6 +5129,7 @@
           tag: 'template',
           attrsList: [],
           attrsMap: {},
+          rawAttrsMap: {},
           children: currentOptimizableGroup,
           ssrOptimizability: optimizability.FULL
         });
@@ -5141,7 +5444,8 @@
   exports.compileToFunctions = compileToFunctions;
   exports.ssrCompile = compile$1;
   exports.ssrCompileToFunctions = compileToFunctions$1;
+  exports.generateCodeFrame = generateCodeFrame;
 
   Object.defineProperty(exports, '__esModule', { value: true });
 
-})));
+}));
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 4be2279ef2c..abca949de4d 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -131,6 +131,14 @@ var camelize = cached(function (str) {
   return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
 });
 
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
 /**
  * Simple bind polyfill for environments that do not support it,
  * e.g., PhantomJS 1.x. Technically, we don't need this anymore
@@ -225,15 +233,34 @@ var isNonPhrasingTag = makeMap(
   'title,tr,track'
 );
 
+/*  */
+
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
 /**
  * Not type-checking this file because it's mostly vendor code.
  */
 
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
-// but for Vue templates we can enforce a simple charset
-var ncname = '[a-zA-Z_][\\w\\-\\.]*';
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
@@ -286,7 +313,7 @@ function parseHTML (html, options) {
 
           if (commentEnd >= 0) {
             if (options.shouldKeepComment) {
-              options.comment(html.substring(4, commentEnd));
+              options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
             }
             advance(commentEnd + 3);
             continue
@@ -346,16 +373,18 @@ function parseHTML (html, options) {
           rest = html.slice(textEnd);
         }
         text = html.substring(0, textEnd);
-        advance(textEnd);
       }
 
       if (textEnd < 0) {
         text = html;
-        html = '';
+      }
+
+      if (text) {
+        advance(text.length);
       }
 
       if (options.chars && text) {
-        options.chars(text);
+        options.chars(text, index - text.length, index);
       }
     } else {
       var endTagLength = 0;
@@ -384,7 +413,7 @@ function parseHTML (html, options) {
     if (html === last) {
       options.chars && options.chars(html);
       if (process.env.NODE_ENV !== 'production' && !stack.length && options.warn) {
-        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
+        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
       }
       break
     }
@@ -409,7 +438,9 @@ function parseHTML (html, options) {
       advance(start[0].length);
       var end, attr;
       while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        attr.start = index;
         advance(attr[0].length);
+        attr.end = index;
         match.attrs.push(attr);
       }
       if (end) {
@@ -448,10 +479,14 @@ function parseHTML (html, options) {
         name: args[1],
         value: decodeAttr(value, shouldDecodeNewlines)
       };
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        attrs[i].start = args.start + args[0].match(/^\s*/).length;
+        attrs[i].end = args.end;
+      }
     }
 
     if (!unary) {
-      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
       lastTag = tagName;
     }
 
@@ -486,7 +521,8 @@ function parseHTML (html, options) {
           options.warn
         ) {
           options.warn(
-            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
+            ("tag <" + (stack[i].tag) + "> has no matching end tag."),
+            { start: stack[i].start }
           );
         }
         if (options.end) {
@@ -518,8 +554,6 @@ var splitRE = /\r?\n/g;
 var replaceRE = /./g;
 var isSpecialTag = makeMap('script,style,template', true);
 
-
-
 /**
  * Parse a single-file component (*.vue) file into an SFC Descriptor Object.
  */
@@ -533,11 +567,29 @@ function parseComponent (
     template: null,
     script: null,
     styles: [],
-    customBlocks: []
+    customBlocks: [],
+    errors: []
   };
   var depth = 0;
   var currentBlock = null;
 
+  var warn = function (msg) {
+    sfc.errors.push(msg);
+  };
+
+  if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+    warn = function (msg, range) {
+      var data = { msg: msg };
+      if (range.start != null) {
+        data.start = range.start;
+      }
+      if (range.end != null) {
+        data.end = range.end;
+      }
+      sfc.errors.push(data);
+    };
+  }
+
   function start (
     tag,
     attrs,
@@ -595,7 +647,10 @@ function parseComponent (
   function end (tag, start) {
     if (depth === 1 && currentBlock) {
       currentBlock.end = start;
-      var text = deindent(content.slice(currentBlock.start, currentBlock.end));
+      var text = content.slice(currentBlock.start, currentBlock.end);
+      if (options.deindent !== false) {
+        text = deindent(text);
+      }
       // pad content so that linters and pre-processors can output correct
       // line numbers in errors and warnings
       if (currentBlock.type !== 'template' && options.pad) {
@@ -620,8 +675,10 @@ function parseComponent (
   }
 
   parseHTML(content, {
+    warn: warn,
     start: start,
-    end: end
+    end: end,
+    outputSourceRange: options.outputSourceRange
   });
 
   return sfc
@@ -629,20 +686,6 @@ function parseComponent (
 
 /*  */
 
-/**
- * Define a property.
- */
-function def (obj, key, val, enumerable) {
-  Object.defineProperty(obj, key, {
-    value: val,
-    enumerable: !!enumerable,
-    writable: true,
-    configurable: true
-  });
-}
-
-/*  */
-
 // can we use __proto__?
 var hasProto = '__proto__' in {};
 
@@ -657,6 +700,7 @@ var isEdge = UA && UA.indexOf('edge/') > 0;
 var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+var isPhantomJS = UA && /phantomjs/.test(UA);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -742,7 +786,8 @@ var LIFECYCLE_HOOKS = [
   'destroyed',
   'activated',
   'deactivated',
-  'errorCaptured'
+  'errorCaptured',
+  'ssrPrefetch'
 ];
 
 /*  */
@@ -1325,9 +1370,15 @@ if (process.env.NODE_ENV !== 'production') {
 function mergeData (to, from) {
   if (!from) { return to }
   var key, toVal, fromVal;
-  var keys = Object.keys(from);
+
+  var keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from);
+
   for (var i = 0; i < keys.length; i++) {
     key = keys[i];
+    // in case the object is already observed...
+    if (key === '__ob__') { continue }
     toVal = to[key];
     fromVal = from[key];
     if (!hasOwn(to, key)) {
@@ -1563,23 +1614,28 @@ function flushCallbacks () {
   }
 }
 
-// Determine (macro) task defer implementation.
-// Technically setImmediate should be the ideal choice, but it's only available
-// in IE. The only polyfill that consistently queues the callback after all DOM
-// events triggered in the same loop is by using MessageChannel.
-/* istanbul ignore if */
-if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ; else if (typeof MessageChannel !== 'undefined' && (
-  isNative(MessageChannel) ||
-  // PhantomJS
-  MessageChannel.toString() === '[object MessageChannelConstructor]'
-)) {
-  var channel = new MessageChannel();
-  channel.port1.onmessage = flushCallbacks;
-}
-
-// Determine microtask defer implementation.
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
 /* istanbul ignore next, $flow-disable-line */
-if (typeof Promise !== 'undefined' && isNative(Promise)) ;
+if (typeof Promise !== 'undefined' && isNative(Promise)) ; else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  var counter = 1;
+  var observer = new MutationObserver(flushCallbacks);
+  var textNode = document.createTextNode(String(counter));
+  observer.observe(textNode, {
+    characterData: true
+  });
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) ;
 
 /*  */
 
@@ -1807,9 +1863,13 @@ function parseText (
 
 /*  */
 
-function baseWarn (msg) {
+
+
+/* eslint-disable no-unused-vars */
+function baseWarn (msg, range) {
   console.error(("[Vue compiler]: " + msg));
 }
+/* eslint-enable no-unused-vars */
 
 function pluckModuleFunction (
   modules,
@@ -1820,20 +1880,20 @@ function pluckModuleFunction (
     : []
 }
 
-function addProp (el, name, value) {
-  (el.props || (el.props = [])).push({ name: name, value: value });
+function addProp (el, name, value, range) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
   el.plain = false;
 }
 
-function addAttr (el, name, value) {
-  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
+function addAttr (el, name, value, range) {
+  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
   el.plain = false;
 }
 
 // add a raw attr (use this in preTransforms)
-function addRawAttr (el, name, value) {
+function addRawAttr (el, name, value, range) {
   el.attrsMap[name] = value;
-  el.attrsList.push({ name: name, value: value });
+  el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
 }
 
 function addDirective (
@@ -1842,9 +1902,10 @@ function addDirective (
   rawName,
   value,
   arg,
-  modifiers
+  modifiers,
+  range
 ) {
-  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
+  (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
   el.plain = false;
 }
 
@@ -1854,7 +1915,8 @@ function addHandler (
   value,
   modifiers,
   important,
-  warn
+  warn,
+  range
 ) {
   modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
@@ -1865,7 +1927,8 @@ function addHandler (
   ) {
     warn(
       'passive and prevent can\'t be used together. ' +
-      'Passive handler can\'t prevent default event.'
+      'Passive handler can\'t prevent default event.',
+      range
     );
   }
 
@@ -1904,9 +1967,7 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = {
-    value: value.trim()
-  };
+  var newHandler = rangeSetItem({ value: value.trim() }, range);
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -1924,6 +1985,15 @@ function addHandler (
   el.plain = false;
 }
 
+function getRawBindingAttr (
+  el,
+  name
+) {
+  return el.rawAttrsMap[':' + name] ||
+    el.rawAttrsMap['v-bind:' + name] ||
+    el.rawAttrsMap[name]
+}
+
 function getBindingAttr (
   el,
   name,
@@ -1967,6 +2037,35 @@ function getAndRemoveAttr (
   return val
 }
 
+function getAndRemoveAttrByRegex (
+  el,
+  name
+) {
+  var list = el.attrsList;
+  for (var i = 0, l = list.length; i < l; i++) {
+    var attr = list[i];
+    if (name.test(attr.name)) {
+      list.splice(i, 1);
+      return attr
+    }
+  }
+}
+
+function rangeSetItem (
+  item,
+  range
+) {
+  if (range) {
+    if (range.start != null) {
+      item.start = range.start;
+    }
+    if (range.end != null) {
+      item.end = range.end;
+    }
+  }
+  return item
+}
+
 /*  */
 
 function transformNode (el, options) {
@@ -1979,7 +2078,8 @@ function transformNode (el, options) {
         "class=\"" + staticClass + "\": " +
         'Interpolation inside attributes has been removed. ' +
         'Use v-bind or the colon shorthand instead. For example, ' +
-        'instead of <div class="{{ val }}">, use <div :class="val">.'
+        'instead of <div class="{{ val }}">, use <div :class="val">.',
+        el.rawAttrsMap['class']
       );
     }
   }
@@ -2038,7 +2138,8 @@ function transformNode$1 (el, options) {
           "style=\"" + staticStyle + "\": " +
           'Interpolation inside attributes has been removed. ' +
           'Use v-bind or the colon shorthand instead. For example, ' +
-          'instead of <div style="{{ val }}">, use <div :style="val">.'
+          'instead of <div style="{{ val }}">, use <div :style="val">.',
+          el.rawAttrsMap['style']
         );
       }
     }
@@ -2219,15 +2320,21 @@ function parseString (chr) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:/;
+var dirRE = /^v-|^@|^:|^\./;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
 
 var argRE = /:(.*)$/;
-var bindRE = /^:|^v-bind:/;
+var bindRE = /^:|^\.|^v-bind:/;
+var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
+var scopedSlotShorthandRE = /^:?\(.*\)$/;
+
+var lineBreakRE = /[\r\n]/;
+var whitespaceRE = /\s+/g;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -2239,8 +2346,7 @@ var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
-
-
+var maybeComponent;
 
 function createASTElement (
   tag,
@@ -2252,6 +2358,7 @@ function createASTElement (
     tag: tag,
     attrsList: attrs,
     attrsMap: makeAttrsMap(attrs),
+    rawAttrsMap: {},
     parent: parent,
     children: []
   }
@@ -2269,6 +2376,8 @@ function parse (
   platformIsPreTag = options.isPreTag || no;
   platformMustUseProp = options.mustUseProp || no;
   platformGetTagNamespace = options.getTagNamespace || no;
+  var isReservedTag = options.isReservedTag || no;
+  maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
   preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -2278,20 +2387,55 @@ function parse (
 
   var stack = [];
   var preserveWhitespace = options.preserveWhitespace !== false;
+  var whitespaceOption = options.whitespace;
   var root;
   var currentParent;
   var inVPre = false;
   var inPre = false;
   var warned = false;
 
-  function warnOnce (msg) {
+  function warnOnce (msg, range) {
     if (!warned) {
       warned = true;
-      warn$1(msg);
+      warn$1(msg, range);
     }
   }
 
   function closeElement (element) {
+    if (!inVPre && !element.processed) {
+      element = processElement(element, options);
+    }
+    // tree management
+    if (!stack.length && element !== root) {
+      // allow root elements with v-if, v-else-if and v-else
+      if (root.if && (element.elseif || element.else)) {
+        if (process.env.NODE_ENV !== 'production') {
+          checkRootConstraints(element);
+        }
+        addIfCondition(root, {
+          exp: element.elseif,
+          block: element
+        });
+      } else if (process.env.NODE_ENV !== 'production') {
+        warnOnce(
+          "Component template should contain exactly one root element. " +
+          "If you are using v-if on multiple elements, " +
+          "use v-else-if to chain them instead.",
+          { start: element.start }
+        );
+      }
+    }
+    if (currentParent && !element.forbidden) {
+      if (element.elseif || element.else) {
+        processIfConditions(element, currentParent);
+      } else if (element.slotScope) { // scoped slot
+        var name = element.slotTarget || '"default"'
+        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+      } else {
+        currentParent.children.push(element);
+        element.parent = currentParent;
+      }
+    }
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -2305,6 +2449,23 @@ function parse (
     }
   }
 
+  function checkRootConstraints (el) {
+    if (el.tag === 'slot' || el.tag === 'template') {
+      warnOnce(
+        "Cannot use <" + (el.tag) + "> as component root element because it may " +
+        'contain multiple nodes.',
+        { start: el.start }
+      );
+    }
+    if (el.attrsMap.hasOwnProperty('v-for')) {
+      warnOnce(
+        'Cannot use v-for on stateful component root element because ' +
+        'it renders multiple elements.',
+        el.rawAttrsMap['v-for']
+      );
+    }
+  }
+
   parseHTML(template, {
     warn: warn$1,
     expectHTML: options.expectHTML,
@@ -2313,7 +2474,8 @@ function parse (
     shouldDecodeNewlines: options.shouldDecodeNewlines,
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
-    start: function start (tag, attrs, unary) {
+    outputSourceRange: options.outputSourceRange,
+    start: function start (tag, attrs, unary, start$1) {
       // check namespace.
       // inherit parent ns if there is one
       var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -2329,12 +2491,21 @@ function parse (
         element.ns = ns;
       }
 
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        element.start = start$1;
+        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+          cumulated[attr.name] = attr;
+          return cumulated
+        }, {});
+      }
+
       if (isForbiddenTag(element) && !isServerRendering()) {
         element.forbidden = true;
         process.env.NODE_ENV !== 'production' && warn$1(
           'Templates should only be responsible for mapping the state to the ' +
           'UI. Avoid placing tags with side-effects in your templates, such as ' +
-          "<" + tag + ">" + ', as they will not be parsed.'
+          "<" + tag + ">" + ', as they will not be parsed.',
+          { start: element.start }
         );
       }
 
@@ -2359,59 +2530,15 @@ function parse (
         processFor(element);
         processIf(element);
         processOnce(element);
-        // element-scope stuff
-        processElement(element, options);
-      }
-
-      function checkRootConstraints (el) {
-        if (process.env.NODE_ENV !== 'production') {
-          if (el.tag === 'slot' || el.tag === 'template') {
-            warnOnce(
-              "Cannot use <" + (el.tag) + "> as component root element because it may " +
-              'contain multiple nodes.'
-            );
-          }
-          if (el.attrsMap.hasOwnProperty('v-for')) {
-            warnOnce(
-              'Cannot use v-for on stateful component root element because ' +
-              'it renders multiple elements.'
-            );
-          }
-        }
       }
 
-      // tree management
       if (!root) {
         root = element;
-        checkRootConstraints(root);
-      } else if (!stack.length) {
-        // allow root elements with v-if, v-else-if and v-else
-        if (root.if && (element.elseif || element.else)) {
-          checkRootConstraints(element);
-          addIfCondition(root, {
-            exp: element.elseif,
-            block: element
-          });
-        } else if (process.env.NODE_ENV !== 'production') {
-          warnOnce(
-            "Component template should contain exactly one root element. " +
-            "If you are using v-if on multiple elements, " +
-            "use v-else-if to chain them instead."
-          );
-        }
-      }
-      if (currentParent && !element.forbidden) {
-        if (element.elseif || element.else) {
-          processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          currentParent.plain = false;
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
-        } else {
-          currentParent.children.push(element);
-          element.parent = currentParent;
+        if (process.env.NODE_ENV !== 'production') {
+          checkRootConstraints(root);
         }
       }
+
       if (!unary) {
         currentParent = element;
         stack.push(element);
@@ -2420,29 +2547,36 @@ function parse (
       }
     },
 
-    end: function end () {
-      // remove trailing whitespace
+    end: function end (tag, start, end$1) {
       var element = stack[stack.length - 1];
-      var lastNode = element.children[element.children.length - 1];
-      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
-        element.children.pop();
+      if (!inPre) {
+        // remove trailing whitespace node
+        var lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+          element.children.pop();
+        }
       }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        element.end = end$1;
+      }
       closeElement(element);
     },
 
-    chars: function chars (text) {
+    chars: function chars (text, start, end) {
       if (!currentParent) {
         if (process.env.NODE_ENV !== 'production') {
           if (text === template) {
             warnOnce(
-              'Component template requires a root element, rather than just text.'
+              'Component template requires a root element, rather than just text.',
+              { start: start }
             );
           } else if ((text = text.trim())) {
             warnOnce(
-              ("text \"" + text + "\" outside root element will be ignored.")
+              ("text \"" + text + "\" outside root element will be ignored."),
+              { start: start }
             );
           }
         }
@@ -2457,33 +2591,62 @@ function parse (
         return
       }
       var children = currentParent.children;
-      text = inPre || text.trim()
-        ? isTextTag(currentParent) ? text : decodeHTMLCached(text)
-        // only preserve whitespace if its not right after a starting tag
-        : preserveWhitespace && children.length ? ' ' : '';
+      if (inPre || text.trim()) {
+        text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+      } else if (!children.length) {
+        // remove the whitespace-only node right after an opening tag
+        text = '';
+      } else if (whitespaceOption) {
+        if (whitespaceOption === 'condense') {
+          // in condense mode, remove the whitespace node if it contains
+          // line break, otherwise condense to a single space
+          text = lineBreakRE.test(text) ? '' : ' ';
+        } else {
+          text = ' ';
+        }
+      } else {
+        text = preserveWhitespace ? ' ' : '';
+      }
       if (text) {
+        if (whitespaceOption === 'condense') {
+          // condense consecutive whitespaces into single space
+          text = text.replace(whitespaceRE, ' ');
+        }
         var res;
+        var child;
         if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
-          children.push({
+          child = {
             type: 2,
             expression: res.expression,
             tokens: res.tokens,
             text: text
-          });
+          };
         } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
-          children.push({
+          child = {
             type: 3,
             text: text
-          });
+          };
+        }
+        if (child) {
+          if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          children.push(child);
         }
       }
     },
-    comment: function comment (text) {
-      currentParent.children.push({
+    comment: function comment (text, start, end) {
+      var child = {
         type: 3,
         text: text,
         isComment: true
-      });
+      };
+      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+        child.start = start;
+        child.end = end;
+      }
+      currentParent.children.push(child);
     }
   });
   return root
@@ -2496,14 +2659,19 @@ function processPre (el) {
 }
 
 function processRawAttrs (el) {
-  var l = el.attrsList.length;
-  if (l) {
-    var attrs = el.attrs = new Array(l);
-    for (var i = 0; i < l; i++) {
+  var list = el.attrsList;
+  var len = list.length;
+  if (len) {
+    var attrs = el.attrs = new Array(len);
+    for (var i = 0; i < len; i++) {
       attrs[i] = {
-        name: el.attrsList[i].name,
-        value: JSON.stringify(el.attrsList[i].value)
+        name: list[i].name,
+        value: JSON.stringify(list[i].value)
       };
+      if (list[i].start != null) {
+        attrs[i].start = list[i].start;
+        attrs[i].end = list[i].end;
+      }
     }
   } else if (!el.pre) {
     // non root node in pre blocks with no attributes
@@ -2511,20 +2679,29 @@ function processRawAttrs (el) {
   }
 }
 
-function processElement (element, options) {
+function processElement (
+  element,
+  options
+) {
   processKey(element);
 
   // determine whether this is a plain element after
   // removing structural attributes
-  element.plain = !element.key && !element.attrsList.length;
+  element.plain = (
+    !element.key &&
+    !element.scopedSlots &&
+    !element.attrsList.length
+  );
 
   processRef(element);
-  processSlot(element);
+  processSlotContent(element);
+  processSlotOutlet(element);
   processComponent(element);
   for (var i = 0; i < transforms.length; i++) {
     element = transforms[i](element, options) || element;
   }
   processAttrs(element);
+  return element
 }
 
 function processKey (el) {
@@ -2532,7 +2709,10 @@ function processKey (el) {
   if (exp) {
     if (process.env.NODE_ENV !== 'production') {
       if (el.tag === 'template') {
-        warn$1("<template> cannot be keyed. Place the key on real elements instead.");
+        warn$1(
+          "<template> cannot be keyed. Place the key on real elements instead.",
+          getRawBindingAttr(el, 'key')
+        );
       }
       if (el.for) {
         var iterator = el.iterator2 || el.iterator1;
@@ -2540,7 +2720,9 @@ function processKey (el) {
         if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
           warn$1(
             "Do not use v-for index as key on <transition-group> children, " +
-            "this is the same as not using keys."
+            "this is the same as not using keys.",
+            getRawBindingAttr(el, 'key'),
+            true /* tip */
           );
         }
       }
@@ -2565,7 +2747,8 @@ function processFor (el) {
       extend(el, res);
     } else if (process.env.NODE_ENV !== 'production') {
       warn$1(
-        ("Invalid v-for expression: " + exp)
+        ("Invalid v-for expression: " + exp),
+        el.rawAttrsMap['v-for']
       );
     }
   }
@@ -2621,7 +2804,8 @@ function processIfConditions (el, parent) {
   } else if (process.env.NODE_ENV !== 'production') {
     warn$1(
       "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
-      "used on element <" + (el.tag) + "> without corresponding v-if."
+      "used on element <" + (el.tag) + "> without corresponding v-if.",
+      el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
     );
   }
 }
@@ -2635,7 +2819,8 @@ function findPrevElement (children) {
       if (process.env.NODE_ENV !== 'production' && children[i].text !== ' ') {
         warn$1(
           "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
-          "will be ignored."
+          "will be ignored.",
+          children[i]
         );
       }
       children.pop();
@@ -2657,52 +2842,122 @@ function processOnce (el) {
   }
 }
 
-function processSlot (el) {
+// handle content being passed to a component as slot,
+// e.g. <template slot="xxx">, <div slot-scope="xxx">
+function processSlotContent (el) {
+  var slotScope;
+  if (el.tag === 'template') {
+    slotScope = getAndRemoveAttr(el, 'scope');
+    /* istanbul ignore if */
+    if (process.env.NODE_ENV !== 'production' && slotScope) {
+      warn$1(
+        "the \"scope\" attribute for scoped slots have been deprecated and " +
+        "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+        "can also be used on plain elements in addition to <template> to " +
+        "denote scoped slots.",
+        el.rawAttrsMap['scope'],
+        true
+      );
+    }
+    el.slotScope = (
+      slotScope ||
+      getAndRemoveAttr(el, 'slot-scope')
+    );
+    if (process.env.NEW_SLOT_SYNTAX) {
+      // new in 2.6: slot-props and its shorthand works the same as slot-scope
+      // when used on <template> containers
+      el.slotScope = el.slotScope || getAndRemoveAttr(el, 'slot-props');
+      // 2.6 shorthand syntax
+      var shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
+      if (shorthand) {
+        if (process.env.NODE_ENV !== 'production' && el.slotScope) {
+          warn$1(
+            "Unexpected mixed usage of different slot syntaxes.",
+            el
+          );
+        }
+        el.slotTarget = getScopedSlotShorthandName(shorthand);
+        el.slotScope = shorthand.value;
+      }
+    }
+  } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+    /* istanbul ignore if */
+    if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
+      warn$1(
+        "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+        "(v-for takes higher priority). Use a wrapper <template> for the " +
+        "scoped slot to make it clearer.",
+        el.rawAttrsMap['slot-scope'],
+        true
+      );
+    }
+    el.slotScope = slotScope;
+  } else if (process.env.NEW_SLOT_SYNTAX) {
+    // 2.6: slot-props on component, denotes default slot
+    slotScope = getAndRemoveAttr(el, 'slot-props');
+    var shorthand$1 = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
+    if (slotScope || shorthand$1) {
+      if (process.env.NODE_ENV !== 'production') {
+        if (!maybeComponent(el)) {
+          warn$1(
+            "slot-props cannot be used on non-component elements.",
+            el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
+          );
+        }
+        if (slotScope && shorthand$1) {
+          warn$1(
+            "Unexpected mixed usage of different slot syntaxes.",
+            el
+          );
+        }
+      }
+      // add the component's children to its default slot
+      var slots = el.scopedSlots || (el.scopedSlots = {});
+      var target = shorthand$1 ? getScopedSlotShorthandName(shorthand$1) : "\"default\"";
+      var slotContainer = slots[target] = createASTElement('template', [], el);
+      slotContainer.children = el.children;
+      slotContainer.slotScope = shorthand$1 ? shorthand$1.value : slotScope;
+      // remove children as they are returned from scopedSlots now
+      el.children = [];
+      // mark el non-plain so data gets generated
+      el.plain = false;
+    }
+  }
+
+  // slot="xxx"
+  var slotTarget = getBindingAttr(el, 'slot');
+  if (slotTarget) {
+    el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    // preserve slot as an attribute for native shadow DOM compat
+    // only for non-scoped slots.
+    if (el.tag !== 'template' && !el.slotScope) {
+      addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+    }
+  }
+}
+
+function getScopedSlotShorthandName (ref) {
+  var name = ref.name;
+
+  return name.charAt(0) === ':'
+    // dynamic :(name)
+    ? name.slice(2, -1) || "\"default\""
+    // static (name)
+    : ("\"" + (name.slice(1, -1) || "default") + "\"")
+}
+
+// handle <slot/> outlets
+function processSlotOutlet (el) {
   if (el.tag === 'slot') {
     el.slotName = getBindingAttr(el, 'name');
     if (process.env.NODE_ENV !== 'production' && el.key) {
       warn$1(
         "`key` does not work on <slot> because slots are abstract outlets " +
         "and can possibly expand into multiple elements. " +
-        "Use the key on a wrapping element instead."
+        "Use the key on a wrapping element instead.",
+        getRawBindingAttr(el, 'key')
       );
     }
-  } else {
-    var slotScope;
-    if (el.tag === 'template') {
-      slotScope = getAndRemoveAttr(el, 'scope');
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && slotScope) {
-        warn$1(
-          "the \"scope\" attribute for scoped slots have been deprecated and " +
-          "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
-          "can also be used on plain elements in addition to <template> to " +
-          "denote scoped slots.",
-          true
-        );
-      }
-      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
-    } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
-      /* istanbul ignore if */
-      if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
-        warn$1(
-          "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
-          "(v-for takes higher priority). Use a wrapper <template> for the " +
-          "scoped slot to make it clearer.",
-          true
-        );
-      }
-      el.slotScope = slotScope;
-    }
-    var slotTarget = getBindingAttr(el, 'slot');
-    if (slotTarget) {
-      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
-      // preserve slot as an attribute for native shadow DOM compat
-      // only for non-scoped slots.
-      if (el.tag !== 'template' && !el.slotScope) {
-        addAttr(el, 'slot', slotTarget);
-      }
-    }
   }
 }
 
@@ -2718,7 +2973,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp;
+  var i, l, name, rawName, value, modifiers, isProp, syncGen;
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name;
     value = list[i].value;
@@ -2726,8 +2981,12 @@ function processAttrs (el) {
       // mark element as dynamic
       el.hasBindings = true;
       // modifiers
-      modifiers = parseModifiers(name);
-      if (modifiers) {
+      modifiers = parseModifiers(name.replace(dirRE, ''));
+      // support .foo shorthand syntax for the .prop modifier
+      if (propBindRE.test(name)) {
+        (modifiers || (modifiers = {})).prop = true;
+        name = "." + name.slice(1).replace(modifierRE, '');
+      } else if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -2752,23 +3011,39 @@ function processAttrs (el) {
             name = camelize(name);
           }
           if (modifiers.sync) {
+            syncGen = genAssignmentCode(value, "$event");
             addHandler(
               el,
               ("update:" + (camelize(name))),
-              genAssignmentCode(value, "$event")
+              syncGen,
+              null,
+              false,
+              warn$1,
+              list[i]
             );
+            if (hyphenate(name) !== camelize(name)) {
+              addHandler(
+                el,
+                ("update:" + (hyphenate(name))),
+                syncGen,
+                null,
+                false,
+                warn$1,
+                list[i]
+              );
+            }
           }
         }
         if (isProp || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value);
+          addProp(el, name, value, list[i]);
         } else {
-          addAttr(el, name, value);
+          addAttr(el, name, value, list[i]);
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$1);
+        addHandler(el, name, value, modifiers, false, warn$1, list[i]);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
@@ -2777,7 +3052,7 @@ function processAttrs (el) {
         if (arg) {
           name = name.slice(0, -(arg.length + 1));
         }
-        addDirective(el, name, rawName, value, arg, modifiers);
+        addDirective(el, name, rawName, value, arg, modifiers, list[i]);
         if (process.env.NODE_ENV !== 'production' && name === 'model') {
           checkForAliasModel(el, value);
         }
@@ -2791,17 +3066,18 @@ function processAttrs (el) {
             name + "=\"" + value + "\": " +
             'Interpolation inside attributes has been removed. ' +
             'Use v-bind or the colon shorthand instead. For example, ' +
-            'instead of <div id="{{ val }}">, use <div :id="val">.'
+            'instead of <div id="{{ val }}">, use <div :id="val">.',
+            list[i]
           );
         }
       }
-      addAttr(el, name, JSON.stringify(value));
+      addAttr(el, name, JSON.stringify(value), list[i]);
       // #6887 firefox doesn't update muted state if set via attribute
       // even immediately after element creation
       if (!el.component &&
           name === 'muted' &&
           platformMustUseProp(el.tag, el.attrsMap.type, name)) {
-        addProp(el, name, 'true');
+        addProp(el, name, 'true', list[i]);
       }
     }
   }
@@ -2834,7 +3110,7 @@ function makeAttrsMap (attrs) {
       process.env.NODE_ENV !== 'production' &&
       map[attrs[i].name] && !isIE && !isEdge
     ) {
-      warn$1('duplicate attribute: ' + attrs[i].name);
+      warn$1('duplicate attribute: ' + attrs[i].name, attrs[i]);
     }
     map[attrs[i].name] = attrs[i].value;
   }
@@ -2881,7 +3157,8 @@ function checkForAliasModel (el, value) {
         "You are binding v-model directly to a v-for iteration alias. " +
         "This will not be able to modify the v-for source array because " +
         "writing to the alias is like modifying a function local variable. " +
-        "Consider using an array of objects and use v-model on an object property instead."
+        "Consider using an array of objects and use v-model on an object property instead.",
+        el.rawAttrsMap['v-model']
       );
     }
     _el = _el.parent;
@@ -2991,7 +3268,8 @@ function model$1 (
     if (tag === 'input' && type === 'file') {
       warn$2(
         "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
-        "File inputs are read only. Use a v-on:change listener instead."
+        "File inputs are read only. Use a v-on:change listener instead.",
+        el.rawAttrsMap['v-model']
       );
     }
   }
@@ -3017,7 +3295,8 @@ function model$1 (
       "<" + (el.tag) + " v-model=\"" + value + "\">: " +
       "v-model is not supported on this element type. " +
       'If you are working with contenteditable, it\'s recommended to ' +
-      'wrap a library dedicated for that purpose inside a custom component.'
+      'wrap a library dedicated for that purpose inside a custom component.',
+      el.rawAttrsMap['v-model']
     );
   }
 
@@ -3101,7 +3380,8 @@ function genDefaultModel (
       var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
       warn$2(
         binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
-        'because the latter already expands to a value binding internally'
+        'because the latter already expands to a value binding internally',
+        el.rawAttrsMap[binding]
       );
     }
   }
@@ -3141,7 +3421,7 @@ function genDefaultModel (
 
 function text (el, dir) {
   if (dir.value) {
-    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
   }
 }
 
@@ -3149,7 +3429,7 @@ function text (el, dir) {
 
 function html (el, dir) {
   if (dir.value) {
-    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
   }
 }
 
@@ -3204,7 +3484,7 @@ function optimize (root, options) {
 
 function genStaticKeys$1 (keys) {
   return makeMap(
-    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
     (keys ? ',' + keys : '')
   )
 }
@@ -3304,6 +3584,7 @@ function isDirectChildOfTemplateFor (node) {
 /*  */
 
 var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
 // KeyboardEvent.keyCode aliases
@@ -3379,12 +3660,13 @@ function genHandler (
 
   var isMethodPath = simplePathRE.test(handler.value);
   var isFunctionExpression = fnExpRE.test(handler.value);
+  var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
 
   if (!handler.modifiers) {
     if (isMethodPath || isFunctionExpression) {
       return handler.value
     }
-    return ("function($event){" + (handler.value) + "}") // inline statement
+    return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
   } else {
     var code = '';
     var genModifierCode = '';
@@ -3419,7 +3701,9 @@ function genHandler (
       ? ("return " + (handler.value) + "($event)")
       : isFunctionExpression
         ? ("return (" + (handler.value) + ")($event)")
-        : handler.value;
+        : isFunctionInvocation
+          ? ("return " + (handler.value))
+          : handler.value;
     return ("function($event){" + code + handlerCode + "}")
   }
 }
@@ -3483,7 +3767,7 @@ var CodegenState = function CodegenState (options) {
   this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
   this.directives = extend(extend({}, baseDirectives), options.directives);
   var isReservedTag = options.isReservedTag || no;
-  this.maybeComponent = function (el) { return !(isReservedTag(el.tag) && !el.component); };
+  this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
   this.onceId = 0;
   this.staticRenderFns = [];
   this.pre = false;
@@ -3574,7 +3858,8 @@ function genOnce (el, state) {
     }
     if (!key) {
       process.env.NODE_ENV !== 'production' && state.warn(
-        "v-once can only be used inside v-for that is keyed. "
+        "v-once can only be used inside v-for that is keyed. ",
+        el.rawAttrsMap['v-once']
       );
       return genElement(el, state)
     }
@@ -3642,6 +3927,7 @@ function genFor (
       "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
       "v-for should have explicit keys. " +
       "See https://vuejs.org/guide/list.html#key for more info.",
+      el.rawAttrsMap['v-for'],
       true /* tip */
     );
   }
@@ -3761,7 +4047,10 @@ function genInlineTemplate (el, state) {
   if (process.env.NODE_ENV !== 'production' && (
     el.children.length !== 1 || ast.type !== 1
   )) {
-    state.warn('Inline-template components must have exactly one child element.');
+    state.warn(
+      'Inline-template components must have exactly one child element.',
+      { start: el.start }
+    );
   }
   if (ast.type === 1) {
     var inlineRenderFns = generate(ast, state.options);
@@ -3940,6 +4229,8 @@ function transformSpecialNewlines (text) {
 
 /*  */
 
+
+
 // these keywords should not appear inside expressions, but operators like
 // typeof, instanceof and in are allowed
 var prohibitedKeywordRE = new RegExp('\\b' + (
@@ -3957,89 +4248,92 @@ var unaryOperatorsRE = new RegExp('\\b' + (
 var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
 
 // detect problematic expressions in a template
-function detectErrors (ast) {
-  var errors = [];
+function detectErrors (ast, warn) {
   if (ast) {
-    checkNode(ast, errors);
+    checkNode(ast, warn);
   }
-  return errors
 }
 
-function checkNode (node, errors) {
+function checkNode (node, warn) {
   if (node.type === 1) {
     for (var name in node.attrsMap) {
       if (dirRE.test(name)) {
         var value = node.attrsMap[name];
         if (value) {
+          var range = node.rawAttrsMap[name];
           if (name === 'v-for') {
-            checkFor(node, ("v-for=\"" + value + "\""), errors);
+            checkFor(node, ("v-for=\"" + value + "\""), warn, range);
           } else if (onRE.test(name)) {
-            checkEvent(value, (name + "=\"" + value + "\""), errors);
+            checkEvent(value, (name + "=\"" + value + "\""), warn, range);
           } else {
-            checkExpression(value, (name + "=\"" + value + "\""), errors);
+            checkExpression(value, (name + "=\"" + value + "\""), warn, range);
           }
         }
       }
     }
     if (node.children) {
       for (var i = 0; i < node.children.length; i++) {
-        checkNode(node.children[i], errors);
+        checkNode(node.children[i], warn);
       }
     }
   } else if (node.type === 2) {
-    checkExpression(node.expression, node.text, errors);
+    checkExpression(node.expression, node.text, warn, node);
   }
 }
 
-function checkEvent (exp, text, errors) {
+function checkEvent (exp, text, warn, range) {
   var stipped = exp.replace(stripStringRE, '');
   var keywordMatch = stipped.match(unaryOperatorsRE);
   if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
-    errors.push(
+    warn(
       "avoid using JavaScript unary operator as property name: " +
-      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
+      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
+      range
     );
   }
-  checkExpression(exp, text, errors);
+  checkExpression(exp, text, warn, range);
 }
 
-function checkFor (node, text, errors) {
-  checkExpression(node.for || '', text, errors);
-  checkIdentifier(node.alias, 'v-for alias', text, errors);
-  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
-  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
+function checkFor (node, text, warn, range) {
+  checkExpression(node.for || '', text, warn, range);
+  checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
 }
 
 function checkIdentifier (
   ident,
   type,
   text,
-  errors
+  warn,
+  range
 ) {
   if (typeof ident === 'string') {
     try {
       new Function(("var " + ident + "=_"));
     } catch (e) {
-      errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
+      warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
     }
   }
 }
 
-function checkExpression (exp, text, errors) {
+function checkExpression (exp, text, warn, range) {
   try {
     new Function(("return " + exp));
   } catch (e) {
     var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
     if (keywordMatch) {
-      errors.push(
+      warn(
         "avoid using JavaScript keyword as property name: " +
-        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim())
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
+        range
       );
     } else {
-      errors.push(
+      warn(
         "invalid expression: " + (e.message) + " in\n\n" +
         "    " + exp + "\n\n" +
-        "  Raw expression: " + (text.trim()) + "\n"
+        "  Raw expression: " + (text.trim()) + "\n",
+        range
       );
     }
   }
@@ -4047,6 +4341,58 @@ function checkExpression (exp, text, errors) {
 
 /*  */
 
+var range = 2;
+
+function generateCodeFrame (
+  source,
+  start,
+  end
+) {
+  if ( start === void 0 ) start = 0;
+  if ( end === void 0 ) end = source.length;
+
+  var lines = source.split(/\r?\n/);
+  var count = 0;
+  var res = [];
+  for (var i = 0; i < lines.length; i++) {
+    count += lines[i].length + 1;
+    if (count >= start) {
+      for (var j = i - range; j <= i + range || end > count; j++) {
+        if (j < 0 || j >= lines.length) { continue }
+        res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
+        var lineLength = lines[j].length;
+        if (j === i) {
+          // push underline
+          var pad = start - (count - lineLength) + 1;
+          var length = end > count ? lineLength - pad : end - start;
+          res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
+        } else if (j > i) {
+          if (end > count) {
+            var length$1 = Math.min(end - count, lineLength);
+            res.push("   |  " + repeat$1("^", length$1));
+          }
+          count += lineLength + 1;
+        }
+      }
+      break
+    }
+  }
+  return res.join('\n')
+}
+
+function repeat$1 (str, n) {
+  var result = '';
+  while (true) { // eslint-disable-line
+    if (n & 1) { result += str; }
+    n >>>= 1;
+    if (n <= 0) { break }
+    str += str;
+  }
+  return result
+}
+
+/*  */
+
 
 
 function createFunction (code, errors) {
@@ -4102,14 +4448,28 @@ function createCompileToFunctionFn (compile) {
     // check compilation errors/tips
     if (process.env.NODE_ENV !== 'production') {
       if (compiled.errors && compiled.errors.length) {
-        warn$$1(
-          "Error compiling template:\n\n" + template + "\n\n" +
-          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
-          vm
-        );
+        if (options.outputSourceRange) {
+          compiled.errors.forEach(function (e) {
+            warn$$1(
+              "Error compiling template:\n\n" + (e.msg) + "\n\n" +
+              generateCodeFrame(template, e.start, e.end),
+              vm
+            );
+          });
+        } else {
+          warn$$1(
+            "Error compiling template:\n\n" + template + "\n\n" +
+            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+            vm
+          );
+        }
       }
       if (compiled.tips && compiled.tips.length) {
-        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+        if (options.outputSourceRange) {
+          compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
+        } else {
+          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+        }
       }
     }
 
@@ -4155,11 +4515,29 @@ function createCompilerCreator (baseCompile) {
       var finalOptions = Object.create(baseOptions);
       var errors = [];
       var tips = [];
-      finalOptions.warn = function (msg, tip) {
+
+      var warn = function (msg, range, tip) {
         (tip ? tips : errors).push(msg);
       };
 
       if (options) {
+        if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+          // $flow-disable-line
+          var leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+          warn = function (msg, range, tip) {
+            var data = { msg: msg };
+            if (range) {
+              if (range.start != null) {
+                data.start = range.start + leadingSpaceLength;
+              }
+              if (range.end != null) {
+                data.end = range.end + leadingSpaceLength;
+              }
+            }
+            (tip ? tips : errors).push(data);
+          };
+        }
         // merge custom modules
         if (options.modules) {
           finalOptions.modules =
@@ -4180,9 +4558,11 @@ function createCompilerCreator (baseCompile) {
         }
       }
 
-      var compiled = baseCompile(template, finalOptions);
+      finalOptions.warn = warn;
+
+      var compiled = baseCompile(template.trim(), finalOptions);
       if (process.env.NODE_ENV !== 'production') {
-        errors.push.apply(errors, detectErrors(compiled.ast));
+        detectErrors(compiled.ast, warn);
       }
       compiled.errors = errors;
       compiled.tips = tips;
@@ -4277,8 +4657,6 @@ function escapeChar (a) {
 
 
 
-
-
 var plainStringRE = /^"(?:[^"\\]|\\.)*"$|^'(?:[^'\\]|\\.)*'$/;
 
 // let the model AST transform translate v-model into appropriate
@@ -4459,6 +4837,7 @@ function optimizeSiblings (el) {
         tag: 'template',
         attrsList: [],
         attrsMap: {},
+        rawAttrsMap: {},
         children: currentOptimizableGroup,
         ssrOptimizability: optimizability.FULL
       });
@@ -4773,3 +5152,4 @@ exports.compile = compile;
 exports.compileToFunctions = compileToFunctions;
 exports.ssrCompile = compile$1;
 exports.ssrCompileToFunctions = compileToFunctions$1;
+exports.generateCodeFrame = generateCodeFrame;
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 52c83f31358..f030a78dbc1 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.5.22",
+  "version": "2.6.0-beta.1",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 732bf878c1f8b60e075990ec490977758d4fb886 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 16 Jan 2019 11:21:07 -0500
Subject: [PATCH 732/911] build: release 2.6.0-beta.1

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index b7105f065e5..ffad783c105 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.5.22",
+  "version": "2.6.0-beta.1",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From a47a0ee287116df7f2b89b956fdb3a3ea6c6330c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 16 Jan 2019 11:22:02 -0500
Subject: [PATCH 733/911] workflow: fix release script [ci skip]

---
 scripts/release.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/release.sh b/scripts/release.sh
index 71ebf8402a4..ad829313bb8 100644
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -57,10 +57,12 @@ if [[ $REPLY =~ ^[Yy]$ ]]; then
   git add -f \
     dist/*.js \
     packages/vue-server-renderer/basic.js \
-    packages/vue-server-renderer/build.js \
+    packages/vue-server-renderer/build.dev.js \
+    packages/vue-server-renderer/build.prod.js \
     packages/vue-server-renderer/server-plugin.js \
     packages/vue-server-renderer/client-plugin.js \
-    packages/vue-template-compiler/build.js
+    packages/vue-template-compiler/build.js \
+    packages/vue-template-compiler/browser.js
   git commit -m "build: build $VERSION"
   # generate release note
   npm run release:note

From 4fca0454bd716a5d3ba32057ff2ed510af933c8d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 16 Jan 2019 13:44:58 -0500
Subject: [PATCH 734/911] feat: update new slot syntax per RFC revision

---
 src/compiler/parser/index.js                  | 118 +++++++++---------
 .../component/component-scoped-slot.spec.js   |  50 +++++---
 2 files changed, 91 insertions(+), 77 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index c7110bfad59..824a85a7367 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -26,13 +26,14 @@ export const dirRE = /^v-|^@|^:|^\./
 export const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
+const dynamicKeyRE = /^\[.*\]$/
 
 const argRE = /:(.*)$/
 export const bindRE = /^:|^\.|^v-bind:/
 const propBindRE = /^\./
 const modifierRE = /\.[^.]+/g
 
-const scopedSlotShorthandRE = /^:?\(.*\)$/
+const slotRE = /^v-slot(:|$)|^#/
 
 const lineBreakRE = /[\r\n]/
 const whitespaceRE = /\s+/g
@@ -566,27 +567,7 @@ function processSlotContent (el) {
         true
       )
     }
-    el.slotScope = (
-      slotScope ||
-      getAndRemoveAttr(el, 'slot-scope')
-    )
-    if (process.env.NEW_SLOT_SYNTAX) {
-      // new in 2.6: slot-props and its shorthand works the same as slot-scope
-      // when used on <template> containers
-      el.slotScope = el.slotScope || getAndRemoveAttr(el, 'slot-props')
-      // 2.6 shorthand syntax
-      const shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE)
-      if (shorthand) {
-        if (process.env.NODE_ENV !== 'production' && el.slotScope) {
-          warn(
-            `Unexpected mixed usage of different slot syntaxes.`,
-            el
-          )
-        }
-        el.slotTarget = getScopedSlotShorthandName(shorthand)
-        el.slotScope = shorthand.value
-      }
-    }
+    el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope')
   } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
@@ -599,36 +580,6 @@ function processSlotContent (el) {
       )
     }
     el.slotScope = slotScope
-  } else if (process.env.NEW_SLOT_SYNTAX) {
-    // 2.6: slot-props on component, denotes default slot
-    slotScope = getAndRemoveAttr(el, 'slot-props')
-    const shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE)
-    if (slotScope || shorthand) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (!maybeComponent(el)) {
-          warn(
-            `slot-props cannot be used on non-component elements.`,
-            el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
-          )
-        }
-        if (slotScope && shorthand) {
-          warn(
-            `Unexpected mixed usage of different slot syntaxes.`,
-            el
-          )
-        }
-      }
-      // add the component's children to its default slot
-      const slots = el.scopedSlots || (el.scopedSlots = {})
-      const target = shorthand ? getScopedSlotShorthandName(shorthand) : `"default"`
-      const slotContainer = slots[target] = createASTElement('template', [], el)
-      slotContainer.children = el.children
-      slotContainer.slotScope = shorthand ? shorthand.value : slotScope
-      // remove children as they are returned from scopedSlots now
-      el.children = []
-      // mark el non-plain so data gets generated
-      el.plain = false
-    }
   }
 
   // slot="xxx"
@@ -641,14 +592,65 @@ function processSlotContent (el) {
       addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'))
     }
   }
+
+  // 2.6 v-slot syntax
+  if (process.env.NEW_SLOT_SYNTAX) {
+    if (el.tag === 'template') {
+      // v-slot on <template>
+      const slotBinding = getAndRemoveAttrByRegex(el, slotRE)
+      if (slotBinding) {
+        if (
+          process.env.NODE_ENV !== 'production' &&
+          (el.slotTarget || el.slotScope)
+        ) {
+          warn(
+            `Unexpected mixed usage of different slot syntaxes.`,
+            el
+          )
+        }
+        el.slotTarget = getSlotName(slotBinding)
+        el.slotScope = slotBinding.value
+      }
+    } else {
+      // v-slot on component, denotes default slot
+      const slotBinding = getAndRemoveAttrByRegex(el, slotRE)
+      if (slotBinding) {
+        if (process.env.NODE_ENV !== 'production') {
+          if (!maybeComponent(el)) {
+            warn(
+              `v-slot cannot be used on non-component elements.`,
+              slotBinding
+            )
+          }
+          if (el.slotScope || el.slotTarget) {
+            warn(
+              `Unexpected mixed usage of different slot syntaxes.`,
+              el
+            )
+          }
+        }
+        // add the component's children to its default slot
+        const slots = el.scopedSlots || (el.scopedSlots = {})
+        const target = getSlotName(slotBinding)
+        const slotContainer = slots[target] = createASTElement('template', [], el)
+        slotContainer.children = el.children
+        slotContainer.slotScope = slotBinding.value
+        // remove children as they are returned from scopedSlots now
+        el.children = []
+        // mark el non-plain so data gets generated
+        el.plain = false
+      }
+    }
+  }
 }
 
-function getScopedSlotShorthandName ({ name }) {
-  return name.charAt(0) === ':'
-    // dynamic :(name)
-    ? name.slice(2, -1) || `"default"`
-    // static (name)
-    : `"${name.slice(1, -1) || `default`}"`
+function getSlotName ({ name }) {
+  name = name.replace(slotRE, '')
+  return dynamicKeyRE.test(name)
+    // dynamic [name]
+    ? name.slice(1, -1)
+    // static name
+    : `"${name || `default`}"`
 }
 
 // handle <slot/> outlets
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 1cb6820abdb..cf642cff0ea 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -634,7 +634,7 @@ describe('Component scoped slot', () => {
 
   // 2.6 new slot syntax
   if (process.env.NEW_SLOT_SYNTAX) {
-    describe('slot-props syntax', () => {
+    describe('v-slot syntax', () => {
       const Foo = {
         render(h) {
           return h('div', [
@@ -657,6 +657,10 @@ describe('Component scoped slot', () => {
         }
       }
 
+      const toNamed = (syntax, name) => syntax.length === 1
+        ? syntax + name // shorthand
+        : syntax + ':' + name // full syntax
+
       function runSuite(syntax) {
         it('default slot', () => {
           const vm = new Vue({
@@ -685,12 +689,12 @@ describe('Component scoped slot', () => {
         it('default + named slots', () => {
           const vm = new Vue({
             template: `
-              <foo ()="foo">
+              <foo #="foo">
                 {{ foo }}
-                <template slot="one" ${syntax}="one">
+                <template ${toNamed(syntax, 'one')}="one">
                   {{ one }}
                 </template>
-                <template slot="two" ${syntax}="two">
+                <template ${toNamed(syntax, 'two')}="two">
                   {{ two }}
                 </template>
               </foo>
@@ -704,12 +708,12 @@ describe('Component scoped slot', () => {
           const vm = new Vue({
             template: `
               <foo>
-                <template slot="one" ${syntax}="one">
+                <template ${toNamed(syntax, 'one')}="one">
                   <bar ${syntax}="bar">
                     {{ one }} {{ bar }}
                   </bar>
                 </template>
-                <template slot="two" ${syntax}="two">
+                <template ${toNamed(syntax, 'two')}="two">
                   <baz ${syntax}="baz">
                     {{ two }} {{ baz }}
                   </baz>
@@ -721,27 +725,35 @@ describe('Component scoped slot', () => {
           expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from bar from foo two from baz`)
         })
 
-        it('should warn slot-props usage on non-component elements', () => {
+        it('should warn v-slot usage on non-component elements', () => {
           const vm = new Vue({
             template: `<div ${syntax}="foo"/>`
           }).$mount()
-          expect(`slot-props cannot be used on non-component elements`).toHaveBeenWarned()
+          expect(`v-slot cannot be used on non-component elements`).toHaveBeenWarned()
+        })
+
+        it('should warn mixed usage', () => {
+          const vm = new Vue({
+            template: `<foo><bar slot="one" slot-scope="bar" ${syntax}="bar"></bar></foo>`,
+            components: { Foo, Bar }
+          }).$mount()
+          expect(`Unexpected mixed usage of different slot syntaxes`).toHaveBeenWarned()
         })
       }
 
       // run tests for both full syntax and shorthand
-      runSuite('slot-props')
-      runSuite('()')
+      runSuite('v-slot')
+      runSuite('#')
 
       it('shorthand named slots', () => {
         const vm = new Vue({
           template: `
-            <foo ()="foo">
+            <foo #="foo">
               {{ foo }}
-              <template (one)="one">
+              <template #one="one">
                 {{ one }}
               </template>
-              <template (two)="two">
+              <template #two="two">
                 {{ two }}
               </template>
             </foo>
@@ -755,8 +767,8 @@ describe('Component scoped slot', () => {
         const vm = new Vue({
           template: `
             <foo>
-              <template (one)>one</template>
-              <template (two)>two</template>
+              <template #one>one</template>
+              <template #two>two</template>
             </foo>
           `,
           components: { Foo }
@@ -767,7 +779,7 @@ describe('Component scoped slot', () => {
       it('shorthand named slots on root', () => {
         const vm = new Vue({
           template: `
-            <foo (one)="one">
+            <foo #one="one">
               {{ one }}
             </foo>
           `,
@@ -776,7 +788,7 @@ describe('Component scoped slot', () => {
         expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one`)
       })
 
-      it('dynamic shorthand', () => {
+      it('dynamic slot name', () => {
         const vm = new Vue({
           data: {
             a: 'one',
@@ -784,8 +796,8 @@ describe('Component scoped slot', () => {
           },
           template: `
             <foo>
-              <template :(a)="one">{{ one }} </template>
-              <template :(b)="two">{{ two }}</template>
+              <template #[a]="one">{{ one }} </template>
+              <template v-slot:[b]="two">{{ two }}</template>
             </foo>
           `,
           components: { Foo }

From b65f6d78e0e480601b0042b1b5e8259343b629fb Mon Sep 17 00:00:00 2001
From: DominusVilicus <dominus@arkovia.com>
Date: Sat, 19 Jan 2019 02:50:07 +1030
Subject: [PATCH 735/911] feat(ssr): allow template option to be function in
 renderToString (#9324)

Also allows return Promise for async handling
---
 src/server/create-renderer.js         | 24 +++++++++++++++++++-----
 src/server/template-renderer/index.js | 21 +++++++++++++++------
 2 files changed, 34 insertions(+), 11 deletions(-)

diff --git a/src/server/create-renderer.js b/src/server/create-renderer.js
index 1cfbfb0ddd9..502b6fa6d1d 100644
--- a/src/server/create-renderer.js
+++ b/src/server/create-renderer.js
@@ -23,7 +23,7 @@ export type RenderOptions = {
   directives?: Object;
   isUnaryTag?: Function;
   cache?: RenderCache;
-  template?: string;
+  template?: string | (content: string, context: any) => string;
   inject?: boolean;
   basedir?: string;
   shouldPreload?: Function;
@@ -82,14 +82,26 @@ export function createRenderer ({
       }, cb)
       try {
         render(component, write, context, err => {
+          if (err) {
+            return cb(err)
+          }
           if (context && context.rendered) {
             context.rendered(context)
           }
           if (template) {
-            result = templateRenderer.renderSync(result, context)
-          }
-          if (err) {
-            cb(err)
+            try {
+              const res = templateRenderer.render(result, context)
+              if (typeof res !== 'string') {
+                // function template returning promise
+                res
+                  .then(html => cb(null, html))
+                  .catch(cb)
+              } else {
+                cb(null, res)
+              }
+            } catch (e) {
+              cb(e)
+            }
           } else {
             cb(null, result)
           }
@@ -119,6 +131,8 @@ export function createRenderer ({
           })
         }
         return renderStream
+      } else if (typeof template === 'function') {
+        throw new Error(`function template is only supported in renderToString.`)
       } else {
         const templateStream = templateRenderer.createStream(context)
         renderStream.on('error', err => {
diff --git a/src/server/template-renderer/index.js b/src/server/template-renderer/index.js
index 269673fb3d7..c8927b2de2c 100644
--- a/src/server/template-renderer/index.js
+++ b/src/server/template-renderer/index.js
@@ -11,7 +11,7 @@ import type { ParsedTemplate } from './parse-template'
 import type { AsyncFileMapper } from './create-async-file-mapper'
 
 type TemplateRendererOptions = {
-  template: ?string;
+  template?: string | (content: string, context: any) => string;
   inject?: boolean;
   clientManifest?: ClientManifest;
   shouldPreload?: (file: string, type: string) => boolean;
@@ -42,7 +42,7 @@ type Resource = {
 export default class TemplateRenderer {
   options: TemplateRendererOptions;
   inject: boolean;
-  parsedTemplate: ParsedTemplate | null;
+  parsedTemplate: ParsedTemplate | Function | null;
   publicPath: string;
   clientManifest: ClientManifest;
   preloadFiles: Array<Resource>;
@@ -55,8 +55,12 @@ export default class TemplateRenderer {
     this.inject = options.inject !== false
     // if no template option is provided, the renderer is created
     // as a utility object for rendering assets like preload links and scripts.
-    this.parsedTemplate = options.template
-      ? parseTemplate(options.template)
+    
+    const { template } = options
+    this.parsedTemplate = template
+      ? typeof template === 'string'
+        ? parseTemplate(template)
+        : template
       : null
 
     // function used to serialize initial state JSON
@@ -89,12 +93,17 @@ export default class TemplateRenderer {
   }
 
   // render synchronously given rendered app content and render context
-  renderSync (content: string, context: ?Object) {
+  render (content: string, context: ?Object): string | Promise<string> {
     const template = this.parsedTemplate
     if (!template) {
-      throw new Error('renderSync cannot be called without a template.')
+      throw new Error('render cannot be called without a template.')
     }
     context = context || {}
+
+    if (typeof template === 'function') {
+      return template(content, context)
+    }
+
     if (this.inject) {
       return (
         template.head(context) +

From df064cedd11d43173b550762ae850c507638db76 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 18 Jan 2019 11:25:37 -0500
Subject: [PATCH 736/911] test: tests for ssr template function (#9324)

---
 test/ssr/ssr-template.spec.js | 62 +++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/test/ssr/ssr-template.spec.js b/test/ssr/ssr-template.spec.js
index d3e81e83159..d30f096668a 100644
--- a/test/ssr/ssr-template.spec.js
+++ b/test/ssr/ssr-template.spec.js
@@ -134,6 +134,68 @@ describe('SSR: template option', () => {
     })
   })
 
+  it('renderToString w/ template function', done => {
+    const renderer = createRenderer({
+      template: (content, context) => `<html><head>${context.head}</head>${content}</html>`
+    })
+
+    const context = {
+      head: '<meta name="viewport" content="width=device-width">'
+    }
+
+    renderer.renderToString(new Vue({
+      template: '<div>hi</div>'
+    }), context, (err, res) => {
+      expect(err).toBeNull()
+      expect(res).toContain(`<html><head>${context.head}</head><div data-server-rendered="true">hi</div></html>`)
+      done()
+    })
+  })
+
+  it('renderToString w/ template function returning Promise', done => {
+    const renderer = createRenderer({
+      template: (content, context) => new Promise((resolve) => {
+        setTimeout(() => {
+          resolve(`<html><head>${context.head}</head>${content}</html>`)
+        }, 0)
+      })
+    })
+
+    const context = {
+      head: '<meta name="viewport" content="width=device-width">'
+    }
+
+    renderer.renderToString(new Vue({
+      template: '<div>hi</div>'
+    }), context, (err, res) => {
+      expect(err).toBeNull()
+      expect(res).toContain(`<html><head>${context.head}</head><div data-server-rendered="true">hi</div></html>`)
+      done()
+    })
+  })
+
+  it('renderToString w/ template function returning Promise w/ rejection', done => {
+    const renderer = createRenderer({
+      template: () => new Promise((resolve, reject) => {
+        setTimeout(() => {
+          reject(new Error(`foo`))
+        }, 0)
+      })
+    })
+
+    const context = {
+      head: '<meta name="viewport" content="width=device-width">'
+    }
+
+    renderer.renderToString(new Vue({
+      template: '<div>hi</div>'
+    }), context, (err, res) => {
+      expect(err.message).toBe(`foo`)
+      expect(res).toBeUndefined()
+      done()
+    })
+  })
+
   it('renderToStream', done => {
     const renderer = createRenderer({
       template: defaultTemplate

From 42fdf3f8378e5dc379808a4fa67b39c4a74ae191 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 18 Jan 2019 16:43:17 -0500
Subject: [PATCH 737/911] refactor: ssrPrefetch -> serverPrefetch for more
 consistent naming

---
 src/server/render.js        |  8 ++++----
 src/shared/constants.js     |  2 +-
 test/ssr/ssr-string.spec.js | 26 +++++++++++++-------------
 types/options.d.ts          |  4 ++--
 types/test/options-test.ts  |  2 +-
 5 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/src/server/render.js b/src/server/render.js
index 4552bea8399..05ba588006d 100644
--- a/src/server/render.js
+++ b/src/server/render.js
@@ -50,8 +50,8 @@ const normalizeRender = vm => {
   }
 }
 
-function waitForSsrPrefetch (vm, resolve, reject) {
-  let handlers = vm.$options.ssrPrefetch
+function waitForServerPrefetch (vm, resolve, reject) {
+  let handlers = vm.$options.serverPrefetch
   if (isDef(handlers)) {
     if (!Array.isArray(handlers)) handlers = [handlers]
     try {
@@ -206,7 +206,7 @@ function renderComponentInner (node, isRoot, context) {
 
   const reject = context.done
 
-  waitForSsrPrefetch(child, resolve, reject)
+  waitForServerPrefetch(child, resolve, reject)
 }
 
 function renderAsyncComponent (node, isRoot, context) {
@@ -432,6 +432,6 @@ export function createRenderFunction (
     const resolve = () => {
       renderNode(component._render(), true, context)
     }
-    waitForSsrPrefetch(component, resolve, done)
+    waitForServerPrefetch(component, resolve, done)
   }
 }
diff --git a/src/shared/constants.js b/src/shared/constants.js
index 018d657b662..a8b15e043dd 100644
--- a/src/shared/constants.js
+++ b/src/shared/constants.js
@@ -18,5 +18,5 @@ export const LIFECYCLE_HOOKS = [
   'activated',
   'deactivated',
   'errorCaptured',
-  'ssrPrefetch'
+  'serverPrefetch'
 ]
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 975197b6c1b..66acf008a00 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1312,7 +1312,7 @@ describe('SSR: renderToString', () => {
     })
   })
 
-  it('should support ssrPrefetch option', done => {
+  it('should support serverPrefetch option', done => {
     renderVmWithOptions({
       template: `
         <div>{{ count }}</div>
@@ -1320,7 +1320,7 @@ describe('SSR: renderToString', () => {
       data: {
         count: 0
       },
-      ssrPrefetch () {
+      serverPrefetch () {
         return new Promise((resolve) => {
           setTimeout(() => {
             this.count = 42
@@ -1334,7 +1334,7 @@ describe('SSR: renderToString', () => {
     })
   })
 
-  it('should support ssrPrefetch option (nested)', done => {
+  it('should support serverPrefetch option (nested)', done => {
     renderVmWithOptions({
       template: `
         <div>
@@ -1345,7 +1345,7 @@ describe('SSR: renderToString', () => {
       data: {
         count: 0
       },
-      ssrPrefetch () {
+      serverPrefetch () {
         return new Promise((resolve) => {
           setTimeout(() => {
             this.count = 42
@@ -1363,7 +1363,7 @@ describe('SSR: renderToString', () => {
               message: ''
             }
           },
-          ssrPrefetch () {
+          serverPrefetch () {
             return new Promise((resolve) => {
               setTimeout(() => {
                 this.message = 'vue.js'
@@ -1379,7 +1379,7 @@ describe('SSR: renderToString', () => {
     })
   })
 
-  it('should support ssrPrefetch option (nested async)', done => {
+  it('should support serverPrefetch option (nested async)', done => {
     renderVmWithOptions({
       template: `
         <div>
@@ -1390,7 +1390,7 @@ describe('SSR: renderToString', () => {
       data: {
         count: 0
       },
-      ssrPrefetch () {
+      serverPrefetch () {
         return new Promise((resolve) => {
           setTimeout(() => {
             this.count = 42
@@ -1409,7 +1409,7 @@ describe('SSR: renderToString', () => {
                 message: ''
               }
             },
-            ssrPrefetch () {
+            serverPrefetch () {
               return new Promise((resolve) => {
                 setTimeout(() => {
                   this.message = 'vue.js'
@@ -1426,12 +1426,12 @@ describe('SSR: renderToString', () => {
     })
   })
 
-  it('should merge ssrPrefetch option', done => {
+  it('should merge serverPrefetch option', done => {
     const mixin = {
       data: {
         message: ''
       },
-      ssrPrefetch () {
+      serverPrefetch () {
         return new Promise((resolve) => {
           setTimeout(() => {
             this.message = 'vue.js'
@@ -1451,7 +1451,7 @@ describe('SSR: renderToString', () => {
       data: {
         count: 0
       },
-      ssrPrefetch () {
+      serverPrefetch () {
         return new Promise((resolve) => {
           setTimeout(() => {
             this.count = 42
@@ -1465,7 +1465,7 @@ describe('SSR: renderToString', () => {
     })
   })
 
-  it(`should skip ssrPrefetch option that doesn't return a promise`, done => {
+  it(`should skip serverPrefetch option that doesn't return a promise`, done => {
     renderVmWithOptions({
       template: `
         <div>{{ count }}</div>
@@ -1473,7 +1473,7 @@ describe('SSR: renderToString', () => {
       data: {
         count: 0
       },
-      ssrPrefetch () {
+      serverPrefetch () {
         setTimeout(() => {
           this.count = 42
         }, 1)
diff --git a/types/options.d.ts b/types/options.d.ts
index 08782da550e..1bb5fbb619f 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -15,7 +15,7 @@ export type Component<Data=DefaultData<never>, Methods=DefaultMethods<never>, Co
 interface EsModuleComponent {
   default: Component
 }
-                      
+
 export type AsyncComponent<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps>
   = AsyncComponentPromise<Data, Methods, Computed, Props>
   | AsyncComponentFactory<Data, Methods, Computed, Props>
@@ -96,7 +96,7 @@ export interface ComponentOptions<
   activated?(): void;
   deactivated?(): void;
   errorCaptured?(err: Error, vm: Vue, info: string): boolean | void;
-  ssrPrefetch?(this: V): Promise<void>;
+  serverPrefetch?(this: V): Promise<void>;
 
   directives?: { [key: string]: DirectiveFunction | DirectiveOptions };
   components?: { [key: string]: Component<any, any, any, any> | AsyncComponent<any, any, any, any> };
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 6fadd88fdab..166d8806108 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -241,7 +241,7 @@ Vue.component('component', {
     info.toUpperCase()
     return true
   },
-  ssrPrefetch () {
+  serverPrefetch () {
     return Promise.resolve()
   },
 

From b0f2f830e62b21a93f22d12ac6402e70354e849c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 18 Jan 2019 16:46:49 -0500
Subject: [PATCH 738/911] chore: fix flow

---
 flow/options.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flow/options.js b/flow/options.js
index ceaf8571e62..09bd93f5d24 100644
--- a/flow/options.js
+++ b/flow/options.js
@@ -44,7 +44,7 @@ declare type ComponentOptions = {
   beforeDestroy?: Function;
   destroyed?: Function;
   errorCaptured?: () => boolean | void;
-  ssrPrefetch?: Function;
+  serverPrefetch?: Function;
 
   // assets
   directives?: { [key: string]: Object };

From 6ca18bd05b5f90af5285851cc6db62b908a844e2 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Sat, 19 Jan 2019 08:37:22 -0500
Subject: [PATCH 739/911] chore: update sponsors [ci skip] (#9343)

---
 BACKERS.md | 7 ++++++-
 README.md  | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 445c50c4460..3453ebf7760 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -199,6 +199,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://yakaz.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 07cc7fa9d3b..a22b1396a07 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -204,6 +204,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://yakaz.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From ec8403209ab9ecc526f696c032f6cd14c8d122bb Mon Sep 17 00:00:00 2001
From: yong <multics.cn@gmail.com>
Date: Sun, 20 Jan 2019 00:28:19 +0800
Subject: [PATCH 740/911] chore: update README in dist (#9346)

---
 dist/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dist/README.md b/dist/README.md
index 6b2068395e7..3452084b68c 100644
--- a/dist/README.md
+++ b/dist/README.md
@@ -40,7 +40,7 @@ module.exports = {
     }
   }
 }
-````
+```
 
 #### Rollup
 

From 67e85deae2b9720624ed7b20223b905a882942a0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 22 Jan 2019 22:21:24 -0500
Subject: [PATCH 741/911] feat: adjust v-slot per RFC + enable flag

---
 scripts/feature-flags.js                      |  2 +-
 src/compiler/parser/index.js                  | 33 ++++++++++++-------
 .../component/component-scoped-slot.spec.js   | 14 ++++----
 3 files changed, 29 insertions(+), 20 deletions(-)

diff --git a/scripts/feature-flags.js b/scripts/feature-flags.js
index 35d55ea7812..3ad11b32d22 100644
--- a/scripts/feature-flags.js
+++ b/scripts/feature-flags.js
@@ -1,3 +1,3 @@
 module.exports = {
-  NEW_SLOT_SYNTAX: false
+  NEW_SLOT_SYNTAX: true
 }
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 824a85a7367..ca202ffbc3a 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -599,14 +599,13 @@ function processSlotContent (el) {
       // v-slot on <template>
       const slotBinding = getAndRemoveAttrByRegex(el, slotRE)
       if (slotBinding) {
-        if (
-          process.env.NODE_ENV !== 'production' &&
-          (el.slotTarget || el.slotScope)
-        ) {
-          warn(
-            `Unexpected mixed usage of different slot syntaxes.`,
-            el
-          )
+        if (process.env.NODE_ENV !== 'production') {
+          if (el.slotTarget || el.slotScope) {
+            warn(
+              `Unexpected mixed usage of different slot syntaxes.`,
+              el
+            )
+          }
         }
         el.slotTarget = getSlotName(slotBinding)
         el.slotScope = slotBinding.value
@@ -618,7 +617,7 @@ function processSlotContent (el) {
         if (process.env.NODE_ENV !== 'production') {
           if (!maybeComponent(el)) {
             warn(
-              `v-slot cannot be used on non-component elements.`,
+              `v-slot can only be used on components or <template>.`,
               slotBinding
             )
           }
@@ -644,13 +643,23 @@ function processSlotContent (el) {
   }
 }
 
-function getSlotName ({ name }) {
-  name = name.replace(slotRE, '')
+function getSlotName (binding) {
+  let name = binding.name.replace(slotRE, '')
+  if (!name) {
+    if (binding.name[0] !== '#') {
+      name = 'default'
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn(
+        `v-slot shorthand syntax requires a slot name.`,
+        binding
+      )
+    }
+  }
   return dynamicKeyRE.test(name)
     // dynamic [name]
     ? name.slice(1, -1)
     // static name
-    : `"${name || `default`}"`
+    : `"${name}"`
 }
 
 // handle <slot/> outlets
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index cf642cff0ea..0da3f32ecc4 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -657,9 +657,9 @@ describe('Component scoped slot', () => {
         }
       }
 
-      const toNamed = (syntax, name) => syntax.length === 1
-        ? syntax + name // shorthand
-        : syntax + ':' + name // full syntax
+      const toNamed = (syntax, name) => syntax[0] === '#'
+        ? `#${name}` // shorthand
+        : `${syntax}:${name}` // full syntax
 
       function runSuite(syntax) {
         it('default slot', () => {
@@ -689,7 +689,7 @@ describe('Component scoped slot', () => {
         it('default + named slots', () => {
           const vm = new Vue({
             template: `
-              <foo #="foo">
+              <foo #default="foo">
                 {{ foo }}
                 <template ${toNamed(syntax, 'one')}="one">
                   {{ one }}
@@ -729,7 +729,7 @@ describe('Component scoped slot', () => {
           const vm = new Vue({
             template: `<div ${syntax}="foo"/>`
           }).$mount()
-          expect(`v-slot cannot be used on non-component elements`).toHaveBeenWarned()
+          expect(`v-slot can only be used on components or <template>`).toHaveBeenWarned()
         })
 
         it('should warn mixed usage', () => {
@@ -743,12 +743,12 @@ describe('Component scoped slot', () => {
 
       // run tests for both full syntax and shorthand
       runSuite('v-slot')
-      runSuite('#')
+      runSuite('#default')
 
       it('shorthand named slots', () => {
         const vm = new Vue({
           template: `
-            <foo #="foo">
+            <foo #default="foo">
               {{ foo }}
               <template #one="one">
                 {{ one }}

From 8d8457246daac543c5935aa3cbf62d362431da43 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 23 Jan 2019 10:20:01 -0500
Subject: [PATCH 742/911] feat: warning for ambiguous v-slot usage

---
 src/compiler/parser/index.js                  |  7 +++++
 .../component/component-scoped-slot.spec.js   | 29 +++++++++++++++----
 2 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index ca202ffbc3a..1f59bb93519 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -627,6 +627,13 @@ function processSlotContent (el) {
               el
             )
           }
+          if (el.scopedSlots) {
+            warn(
+              `To avoid scope ambiguity, the default slot should also use ` +
+              `<template> syntax when there are other named slots.`,
+              slotBinding
+            )
+          }
         }
         // add the component's children to its default slot
         const slots = el.scopedSlots || (el.scopedSlots = {})
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 0da3f32ecc4..cc2b393ef1d 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -686,11 +686,13 @@ describe('Component scoped slot', () => {
           expect(vm.$el.innerHTML.trim()).toBe(`from foo default | from bar | from baz`)
         })
 
-        it('default + named slots', () => {
+        it('named slots', () => {
           const vm = new Vue({
             template: `
-              <foo #default="foo">
-                {{ foo }}
+              <foo>
+                <template ${toNamed(syntax, 'default')}="foo">
+                  {{ foo }}
+                </template>
                 <template ${toNamed(syntax, 'one')}="one">
                   {{ one }}
                 </template>
@@ -748,8 +750,10 @@ describe('Component scoped slot', () => {
       it('shorthand named slots', () => {
         const vm = new Vue({
           template: `
-            <foo #default="foo">
-              {{ foo }}
+            <foo>
+              <template #default="foo">
+                {{ foo }}
+              </template>
               <template #one="one">
                 {{ one }}
               </template>
@@ -763,6 +767,21 @@ describe('Component scoped slot', () => {
         expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
       })
 
+      it('should warn mixed root-default and named slots', () => {
+        const vm = new Vue({
+          template: `
+            <foo #default="foo">
+              {{ foo }}
+              <template #one="one">
+                {{ one }}
+              </template>
+            </foo>
+          `,
+          components: { Foo }
+        }).$mount()
+        expect(`default slot should also use <template>`).toHaveBeenWarned()
+      })
+
       it('shorthand without scope variable', () => {
         const vm = new Vue({
           template: `

From ba9907c73c01b1b52afdf9486c178238a4a68169 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 23 Jan 2019 15:07:24 -0500
Subject: [PATCH 743/911] chore: update sponsor

---
 BACKERS.md | 6 +++---
 README.md  | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 3453ebf7760..3bc0a605e56 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -68,8 +68,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://studio.qcloud.coding.net/campaign/favorite-plugins/?utm_source=vue.js&utm_content=cs-logo" target="_blank">
-          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/cloudstudio.png">
+        <a href="https://e.coding.net/?utm_source=vue.js" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coding.png">
         </a>
       </td>
       <td align="center" valign="middle">
diff --git a/README.md b/README.md
index a22b1396a07..085732ecab2 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -78,8 +78,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
   <tbody>
     <tr>
       <td align="center" valign="middle">
-        <a href="https://studio.qcloud.coding.net/campaign/favorite-plugins/?utm_source=vue.js&utm_content=cs-logo" target="_blank">
-          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/cloudstudio.png">
+        <a href="https://e.coding.net/?utm_source=vue.js" target="_blank">
+          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coding.png">
         </a>
       </td>
       <td align="center" valign="middle">

From ba0ebd4771ddb5c56c1261f82c842b57ca7163a6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 23 Jan 2019 18:41:50 -0500
Subject: [PATCH 744/911] fix: async edge case fix should apply to more
 browsers

also optimize fix performance by avoiding calls to performance.now()
---
 src/core/observer/scheduler.js              | 28 ++++++++++++++++++++-
 src/core/util/next-tick.js                  |  4 +++
 src/platforms/web/runtime/modules/events.js | 21 ++++++++--------
 3 files changed, 42 insertions(+), 11 deletions(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index d9bf67585da..dfda9cef54c 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -7,7 +7,8 @@ import { callHook, activateChildComponent } from '../instance/lifecycle'
 import {
   warn,
   nextTick,
-  devtools
+  devtools,
+  inBrowser
 } from '../util/index'
 
 export const MAX_UPDATE_COUNT = 100
@@ -32,10 +33,35 @@ function resetSchedulerState () {
   waiting = flushing = false
 }
 
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+export let currentFlushTimestamp = 0
+
+let getNow
+if (inBrowser) {
+  // Determine what event timestamp the browser is using. Annoyingly, the
+  // timestamp can either be hi-res ( relative to poge load) or low-res
+  // (relative to UNIX epoch), so in order to compare time we have to use the
+  // same timestamp type when saving the flush timestamp.
+  const lowResNow = Date.now()
+  const eventTimestamp = document.createEvent('Event').timeStamp
+  // the event timestamp is created after Date.now(), if it's smaller
+  // it means it's using a hi-res timestamp.
+  getNow = eventTimestamp < lowResNow
+    ? () => performance.now() // hi-res
+    : Date.now // low-res
+} else {
+  getNow = Date.now
+}
+
 /**
  * Flush both queues and run the watchers.
  */
 function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow()
   flushing = true
   let watcher, id
 
diff --git a/src/core/util/next-tick.js b/src/core/util/next-tick.js
index b63e55c9715..ae08ea4cafd 100644
--- a/src/core/util/next-tick.js
+++ b/src/core/util/next-tick.js
@@ -5,6 +5,8 @@ import { noop } from 'shared/util'
 import { handleError } from './error'
 import { isIE, isIOS, isNative } from './env'
 
+export let isUsingMicroTask = false
+
 const callbacks = []
 let pending = false
 
@@ -48,6 +50,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
     // "force" the microtask queue to be flushed by adding an empty timer.
     if (isIOS) setTimeout(noop)
   }
+  isUsingMicroTask = true
 } else if (!isIE && typeof MutationObserver !== 'undefined' && (
   isNative(MutationObserver) ||
   // PhantomJS and iOS 7.x
@@ -66,6 +69,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
     counter = (counter + 1) % 2
     textNode.data = String(counter)
   }
+  isUsingMicroTask = true
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
   // Techinically it leverages the (macro) task queue,
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 77a744f1bf1..4a177714347 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -2,8 +2,9 @@
 
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
-import { isIE, isChrome, supportsPassive } from 'core/util/index'
+import { isIE, supportsPassive, isUsingMicroTask } from 'core/util/index'
 import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
+import { currentFlushTimestamp } from 'core/observer/scheduler'
 
 // normalize v-model event tokens that can only be determined at runtime.
 // it's important to place the event as the first in the array because
@@ -44,17 +45,17 @@ function add (
   capture: boolean,
   passive: boolean
 ) {
-  if (isChrome) {
-    // async edge case #6566: inner click event triggers patch, event handler
-    // attached to outer element during patch, and triggered again. This only
-    // happens in Chrome as it fires microtask ticks between event propagation.
-    // the solution is simple: we save the timestamp when a handler is attached,
-    // and the handler would only fire if the event passed to it was fired
-    // AFTER it was attached.
-    const now = performance.now()
+  // async edge case #6566: inner click event triggers patch, event handler
+  // attached to outer element during patch, and triggered again. This only
+  // happens in Chrome as it fires microtask ticks between event propagation.
+  // the solution is simple: we save the timestamp when a handler is attached,
+  // and the handler would only fire if the event passed to it was fired
+  // AFTER it was attached.
+  if (isUsingMicroTask) {
+    const attachedTimestamp = currentFlushTimestamp
     const original = handler
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= now) {
+      if (e.timeStamp >= attachedTimestamp) {
         return original.apply(this, arguments)
       }
     }

From 60a277ca31f2cea83733d502bebcd6e4546db262 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 23 Jan 2019 18:44:21 -0500
Subject: [PATCH 745/911] chore: update comment

---
 src/platforms/web/runtime/modules/events.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 4a177714347..e7a969b64df 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -46,8 +46,8 @@ function add (
   passive: boolean
 ) {
   // async edge case #6566: inner click event triggers patch, event handler
-  // attached to outer element during patch, and triggered again. This only
-  // happens in Chrome as it fires microtask ticks between event propagation.
+  // attached to outer element during patch, and triggered again. This
+  // happens because browsers fire microtask ticks between event propagation.
   // the solution is simple: we save the timestamp when a handler is attached,
   // and the handler would only fire if the event passed to it was fired
   // AFTER it was attached.

From 32072e8a8853584b1f8763f42cd845fbc55f4dc2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 24 Jan 2019 10:05:20 -0500
Subject: [PATCH 746/911] refactor: simplify timestamp check

---
 src/core/observer/scheduler.js | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index dfda9cef54c..0473a07ac32 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -40,21 +40,18 @@ function resetSchedulerState () {
 // attached during that flush.
 export let currentFlushTimestamp = 0
 
-let getNow
-if (inBrowser) {
-  // Determine what event timestamp the browser is using. Annoyingly, the
-  // timestamp can either be hi-res ( relative to poge load) or low-res
-  // (relative to UNIX epoch), so in order to compare time we have to use the
-  // same timestamp type when saving the flush timestamp.
-  const lowResNow = Date.now()
-  const eventTimestamp = document.createEvent('Event').timeStamp
-  // the event timestamp is created after Date.now(), if it's smaller
-  // it means it's using a hi-res timestamp.
-  getNow = eventTimestamp < lowResNow
-    ? () => performance.now() // hi-res
-    : Date.now // low-res
-} else {
-  getNow = Date.now
+// Async edge case fix requires storing an event listener's attach timestamp.
+let getNow: () => number = Date.now
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res ( relative to poge load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = () => performance.now()
 }
 
 /**

From 8cb2069aa44f833259781f135c7b6cf9e21e15c8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 24 Jan 2019 10:05:39 -0500
Subject: [PATCH 747/911] test: fix tests in IE/Edge

---
 test/unit/features/component/component-scoped-slot.spec.js | 2 +-
 test/unit/features/instance/properties.spec.js             | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index cc2b393ef1d..1516aaddd2f 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -458,7 +458,7 @@ describe('Component scoped slot', () => {
   // new in 2.6, unifying all slots as functions
   it('non-scoped slots should also be available on $scopedSlots', () => {
     const vm = new Vue({
-      template: `<foo>before <div slot="bar" slot-scope="{ msg }">{{ msg }}</div> after</foo>`,
+      template: `<foo>before <div slot="bar" slot-scope="scope">{{ scope.msg }}</div> after</foo>`,
       components: {
         foo: {
           render(h) {
diff --git a/test/unit/features/instance/properties.spec.js b/test/unit/features/instance/properties.spec.js
index 02aca12fcfa..abe1cc62c16 100644
--- a/test/unit/features/instance/properties.spec.js
+++ b/test/unit/features/instance/properties.spec.js
@@ -149,15 +149,15 @@ describe('Instance properties', () => {
   // #6263
   it('$attrs should not be undefined when no props passed in', () => {
     const vm = new Vue({
-      template: `<foo/>`,
+      template: `<foo ref="foo" />`,
       data: { foo: 'foo' },
       components: {
         foo: {
-          template: `<div>{{ this.foo }}</div>`
+          template: `<div>foo</div>`
         }
       }
     }).$mount()
-    expect(vm.$attrs).toBeDefined()
+    expect(vm.$refs.foo.$attrs).toBeDefined()
   })
 
   it('warn mutating $attrs', () => {

From 1868561442507690f07579c258f4db19a650fb9a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 24 Jan 2019 15:43:06 -0500
Subject: [PATCH 748/911] fix: fix checkbox event edge case in Firefox

---
 .../web/runtime/modules/dom-props.js          |  2 +-
 .../directives/model-checkbox.spec.js         | 76 +++++++++++--------
 2 files changed, 47 insertions(+), 31 deletions(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index 28ee59eefc7..dee1891da67 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -45,7 +45,7 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
     // In Chrome / Firefox, click event fires before change, thus having this problem.
     // In Safari / Edge, the order is opposite.
     // Note: in Edge, if you click too fast, only the click event would fire twice.
-    if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+    if (key === 'checked' && cur === oldProps[key]) {
       continue
     }
 
diff --git a/test/unit/features/directives/model-checkbox.spec.js b/test/unit/features/directives/model-checkbox.spec.js
index 7d48dd1b8ad..0d6ba2f7d15 100644
--- a/test/unit/features/directives/model-checkbox.spec.js
+++ b/test/unit/features/directives/model-checkbox.spec.js
@@ -56,6 +56,7 @@ describe('Directive v-model checkbox', () => {
       },
       template: `
         <div>
+          {{ test }}
           <input type="checkbox" v-model="test" value="1">
           <input type="checkbox" v-model="test" value="2">
         </div>
@@ -65,13 +66,16 @@ describe('Directive v-model checkbox', () => {
     expect(vm.$el.children[0].checked).toBe(true)
     expect(vm.$el.children[1].checked).toBe(false)
     vm.$el.children[0].click()
-    expect(vm.test.length).toBe(0)
-    vm.$el.children[1].click()
-    expect(vm.test).toEqual(['2'])
-    vm.$el.children[0].click()
-    expect(vm.test).toEqual(['2', '1'])
-    vm.test = ['1']
     waitForUpdate(() => {
+      expect(vm.test.length).toBe(0)
+      vm.$el.children[1].click()
+    }).then(() => {
+      expect(vm.test).toEqual(['2'])
+      vm.$el.children[0].click()
+    }).then(() => {
+      expect(vm.test).toEqual(['2', '1'])
+      vm.test = ['1']
+    }).then(() => {
       expect(vm.$el.children[0].checked).toBe(true)
       expect(vm.$el.children[1].checked).toBe(false)
     }).then(done)
@@ -93,13 +97,16 @@ describe('Directive v-model checkbox', () => {
     expect(vm.$el.children[0].checked).toBe(true)
     expect(vm.$el.children[1].checked).toBe(false)
     vm.$el.children[0].click()
-    expect(vm.test.length).toBe(0)
-    vm.$el.children[1].click()
-    expect(vm.test).toEqual(['2'])
-    vm.$el.children[0].click()
-    expect(vm.test).toEqual(['2', '1'])
-    vm.test = ['1']
     waitForUpdate(() => {
+      expect(vm.test.length).toBe(0)
+      vm.$el.children[1].click()
+    }).then(() => {
+      expect(vm.test).toEqual(['2'])
+      vm.$el.children[0].click()
+    }).then(() => {
+      expect(vm.test).toEqual(['2', '1'])
+      vm.test = ['1']
+    }).then(() => {
       expect(vm.$el.children[0].checked).toBe(true)
       expect(vm.$el.children[1].checked).toBe(false)
     }).then(done)
@@ -121,13 +128,16 @@ describe('Directive v-model checkbox', () => {
     expect(vm.$el.children[0].checked).toBe(true)
     expect(vm.$el.children[1].checked).toBe(false)
     vm.$el.children[0].click()
-    expect(vm.test.length).toBe(0)
-    vm.$el.children[1].click()
-    expect(vm.test).toEqual([2])
-    vm.$el.children[0].click()
-    expect(vm.test).toEqual([2, 1])
-    vm.test = [1]
     waitForUpdate(() => {
+      expect(vm.test.length).toBe(0)
+      vm.$el.children[1].click()
+    }).then(() => {
+      expect(vm.test).toEqual([2])
+      vm.$el.children[0].click()
+    }).then(() => {
+      expect(vm.test).toEqual([2, 1])
+      vm.test = [1]
+    }).then(() => {
       expect(vm.$el.children[0].checked).toBe(true)
       expect(vm.$el.children[1].checked).toBe(false)
     }).then(done)
@@ -149,13 +159,16 @@ describe('Directive v-model checkbox', () => {
     expect(vm.$el.children[0].checked).toBe(true)
     expect(vm.$el.children[1].checked).toBe(false)
     vm.$el.children[0].click()
-    expect(vm.test.length).toBe(0)
-    vm.$el.children[1].click()
-    expect(vm.test).toEqual([{ a: 2 }])
-    vm.$el.children[0].click()
-    expect(vm.test).toEqual([{ a: 2 }, { a: 1 }])
-    vm.test = [{ a: 1 }]
     waitForUpdate(() => {
+      expect(vm.test.length).toBe(0)
+      vm.$el.children[1].click()
+    }).then(() => {
+      expect(vm.test).toEqual([{ a: 2 }])
+      vm.$el.children[0].click()
+    }).then(() => {
+      expect(vm.test).toEqual([{ a: 2 }, { a: 1 }])
+      vm.test = [{ a: 1 }]
+    }).then(() => {
       expect(vm.$el.children[0].checked).toBe(true)
       expect(vm.$el.children[1].checked).toBe(false)
     }).then(done)
@@ -177,13 +190,16 @@ describe('Directive v-model checkbox', () => {
     expect(vm.$el.children[0].checked).toBe(true)
     expect(vm.$el.children[1].checked).toBe(false)
     vm.$el.children[0].click()
-    expect(vm.test.length).toBe(0)
-    vm.$el.children[1].click()
-    expect(vm.test).toEqual([[2]])
-    vm.$el.children[0].click()
-    expect(vm.test).toEqual([[2], { a: 1 }])
-    vm.test = [{ a: 1 }]
     waitForUpdate(() => {
+      expect(vm.test.length).toBe(0)
+      vm.$el.children[1].click()
+    }).then(() => {
+      expect(vm.test).toEqual([[2]])
+      vm.$el.children[0].click()
+    }).then(() => {
+      expect(vm.test).toEqual([[2], { a: 1 }])
+      vm.test = [{ a: 1 }]
+    }).then(() => {
       expect(vm.$el.children[0].checked).toBe(true)
       expect(vm.$el.children[1].checked).toBe(false)
     }).then(done)

From 770c6ed64f8be3edc4175d431fc67ba140bf5b97 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 24 Jan 2019 15:47:58 -0500
Subject: [PATCH 749/911] refactor: extend dom-props update skip to more all
 keys except value

---
 src/platforms/web/runtime/modules/dom-props.js | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index dee1891da67..c208845f930 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -38,14 +38,11 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       }
     }
 
-    // #4521: if a click event triggers update before the change event is
-    // dispatched on a checkbox/radio input, the input's checked state will
-    // be reset and fail to trigger another update.
-    // The root cause here is that browsers may fire microtasks in between click/change.
-    // In Chrome / Firefox, click event fires before change, thus having this problem.
-    // In Safari / Edge, the order is opposite.
-    // Note: in Edge, if you click too fast, only the click event would fire twice.
-    if (key === 'checked' && cur === oldProps[key]) {
+    // skip the update if old and new VDOM state is the same.
+    // the only exception is `value` where the DOM value may be temporarily
+    // out of sync with VDOM state due to focus, composition and modifiers.
+    // This also covers #4521 by skipping the unnecesarry `checked` update.
+    if (key !== 'value' && cur === oldProps[key]) {
       continue
     }
 

From f219bedae8f9cab131eb5529769bcfdc91ce2912 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 25 Jan 2019 22:34:06 -0500
Subject: [PATCH 750/911] perf: improve scoped slots change detection accuracy
 (#9371)

Ensure that state mutations that only affect parent scope only trigger parent update and does not affect child components with only scoped slots.
---
 flow/compiler.js                              |   1 +
 src/compiler/codegen/index.js                 |   3 +-
 src/compiler/parser/index.js                  |  18 +-
 src/core/instance/lifecycle.js                |  20 +-
 .../instance/render-helpers/resolve-slots.js  |   7 +-
 .../vdom/helpers/normalize-scoped-slots.js    |   3 +-
 .../component/component-scoped-slot.spec.js   | 341 ++++++++++--------
 test/unit/modules/compiler/codegen.spec.js    |   7 +
 8 files changed, 233 insertions(+), 167 deletions(-)

diff --git a/flow/compiler.js b/flow/compiler.js
index de1e2df9a4a..a1af7a6cec8 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -119,6 +119,7 @@ declare type ASTElement = {
   transitionMode?: string | null;
   slotName?: ?string;
   slotTarget?: ?string;
+  slotTargetDynamic?: boolean;
   slotScope?: ?string;
   scopedSlots?: { [name: string]: ASTElement };
 
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index bdd76be0033..9f23b37e102 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -354,11 +354,12 @@ function genScopedSlots (
   slots: { [key: string]: ASTElement },
   state: CodegenState
 ): string {
+  const hasDynamicKeys = Object.keys(slots).some(key => slots[key].slotTargetDynamic)
   return `scopedSlots:_u([${
     Object.keys(slots).map(key => {
       return genScopedSlot(key, slots[key], state)
     }).join(',')
-  }])`
+  }]${hasDynamicKeys ? `,true` : ``})`
 }
 
 function genScopedSlot (
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 1f59bb93519..601dd8f26d9 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -586,6 +586,7 @@ function processSlotContent (el) {
   const slotTarget = getBindingAttr(el, 'slot')
   if (slotTarget) {
     el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget
+    el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot'])
     // preserve slot as an attribute for native shadow DOM compat
     // only for non-scoped slots.
     if (el.tag !== 'template' && !el.slotScope) {
@@ -607,8 +608,10 @@ function processSlotContent (el) {
             )
           }
         }
-        el.slotTarget = getSlotName(slotBinding)
-        el.slotScope = slotBinding.value
+        const { name, dynamic } = getSlotName(slotBinding)
+        el.slotTarget = name
+        el.slotTargetDynamic = dynamic
+        el.slotScope = slotBinding.value || `_` // force it into a scoped slot for perf
       }
     } else {
       // v-slot on component, denotes default slot
@@ -637,10 +640,11 @@ function processSlotContent (el) {
         }
         // add the component's children to its default slot
         const slots = el.scopedSlots || (el.scopedSlots = {})
-        const target = getSlotName(slotBinding)
-        const slotContainer = slots[target] = createASTElement('template', [], el)
+        const { name, dynamic } = getSlotName(slotBinding)
+        const slotContainer = slots[name] = createASTElement('template', [], el)
+        slotContainer.slotTargetDynamic = dynamic
         slotContainer.children = el.children
-        slotContainer.slotScope = slotBinding.value
+        slotContainer.slotScope = slotBinding.value || `_`
         // remove children as they are returned from scopedSlots now
         el.children = []
         // mark el non-plain so data gets generated
@@ -664,9 +668,9 @@ function getSlotName (binding) {
   }
   return dynamicKeyRE.test(name)
     // dynamic [name]
-    ? name.slice(1, -1)
+    ? { name: name.slice(1, -1), dynamic: true }
     // static name
-    : `"${name}"`
+    : { name: `"${name}"`, dynamic: false }
 }
 
 // handle <slot/> outlets
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 3879c7b5d7f..debe94bc068 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -224,12 +224,22 @@ export function updateChildComponent (
   }
 
   // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  const hasChildren = !!(
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  const hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  )
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  const needsForceUpdate = !!(
     renderChildren ||               // has new static slots
     vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
+    hasDynamicScopedSlot
   )
 
   vm.$options._parentVnode = parentVnode
@@ -268,7 +278,7 @@ export function updateChildComponent (
   updateComponentListeners(vm, listeners, oldListeners)
 
   // resolve slots + force update if has children
-  if (hasChildren) {
+  if (needsForceUpdate) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context)
     vm.$forceUpdate()
   }
diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index dbec386a19c..53bad202172 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -51,13 +51,14 @@ function isWhitespace (node: VNode): boolean {
 
 export function resolveScopedSlots (
   fns: ScopedSlotsData, // see flow/vnode
+  hasDynamicKeys?: boolean,
   res?: Object
-): { [key: string]: Function } {
-  res = res || {}
+): { [key: string]: Function, $stable: boolean } {
+  res = res || { $stable: !hasDynamicKeys }
   for (let i = 0; i < fns.length; i++) {
     const slot = fns[i]
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, res)
+      resolveScopedSlots(slot, hasDynamicKeys, res)
     } else {
       res[slot.key] = slot.fn
     }
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 5e5f0091e79..aa78838e770 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -14,7 +14,7 @@ export function normalizeScopedSlots (
   } else {
     res = {}
     for (const key in slots) {
-      if (slots[key]) {
+      if (slots[key] && key[0] !== '$') {
         res[key] = normalizeScopedSlot(slots[key])
       }
     }
@@ -26,6 +26,7 @@ export function normalizeScopedSlots (
     }
   }
   res._normalized = true
+  res.$stable = slots && slots.$stable
   return res
 }
 
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 1516aaddd2f..14d0ce4a876 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -633,131 +633,69 @@ describe('Component scoped slot', () => {
   })
 
   // 2.6 new slot syntax
-  if (process.env.NEW_SLOT_SYNTAX) {
-    describe('v-slot syntax', () => {
-      const Foo = {
-        render(h) {
-          return h('div', [
-            this.$scopedSlots.default && this.$scopedSlots.default('from foo default'),
-            this.$scopedSlots.one && this.$scopedSlots.one('from foo one'),
-            this.$scopedSlots.two && this.$scopedSlots.two('from foo two')
-          ])
-        }
+  describe('v-slot syntax', () => {
+    const Foo = {
+      render(h) {
+        return h('div', [
+          this.$scopedSlots.default && this.$scopedSlots.default('from foo default'),
+          this.$scopedSlots.one && this.$scopedSlots.one('from foo one'),
+          this.$scopedSlots.two && this.$scopedSlots.two('from foo two')
+        ])
       }
+    }
 
-      const Bar = {
-        render(h) {
-          return this.$scopedSlots.default && this.$scopedSlots.default('from bar')
-        }
+    const Bar = {
+      render(h) {
+        return this.$scopedSlots.default && this.$scopedSlots.default('from bar')
       }
+    }
 
-      const Baz = {
-        render(h) {
-          return this.$scopedSlots.default && this.$scopedSlots.default('from baz')
-        }
+    const Baz = {
+      render(h) {
+        return this.$scopedSlots.default && this.$scopedSlots.default('from baz')
       }
+    }
 
-      const toNamed = (syntax, name) => syntax[0] === '#'
-        ? `#${name}` // shorthand
-        : `${syntax}:${name}` // full syntax
-
-      function runSuite(syntax) {
-        it('default slot', () => {
-          const vm = new Vue({
-            template: `<foo ${syntax}="foo">{{ foo }}<div>{{ foo }}</div></foo>`,
-            components: { Foo }
-          }).$mount()
-          expect(vm.$el.innerHTML).toBe(`from foo default<div>from foo default</div>`)
-        })
-
-        it('nested default slots', () => {
-          const vm = new Vue({
-            template: `
-              <foo ${syntax}="foo">
-                <bar ${syntax}="bar">
-                  <baz ${syntax}="baz">
-                    {{ foo }} | {{ bar }} | {{ baz }}
-                  </baz>
-                </bar>
-              </foo>
-            `,
-            components: { Foo, Bar, Baz }
-          }).$mount()
-          expect(vm.$el.innerHTML.trim()).toBe(`from foo default | from bar | from baz`)
-        })
-
-        it('named slots', () => {
-          const vm = new Vue({
-            template: `
-              <foo>
-                <template ${toNamed(syntax, 'default')}="foo">
-                  {{ foo }}
-                </template>
-                <template ${toNamed(syntax, 'one')}="one">
-                  {{ one }}
-                </template>
-                <template ${toNamed(syntax, 'two')}="two">
-                  {{ two }}
-                </template>
-              </foo>
-            `,
-            components: { Foo }
-          }).$mount()
-          expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
-        })
-
-        it('nested + named + default slots', () => {
-          const vm = new Vue({
-            template: `
-              <foo>
-                <template ${toNamed(syntax, 'one')}="one">
-                  <bar ${syntax}="bar">
-                    {{ one }} {{ bar }}
-                  </bar>
-                </template>
-                <template ${toNamed(syntax, 'two')}="two">
-                  <baz ${syntax}="baz">
-                    {{ two }} {{ baz }}
-                  </baz>
-                </template>
-              </foo>
-            `,
-            components: { Foo, Bar, Baz }
-          }).$mount()
-          expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from bar from foo two from baz`)
-        })
+    const toNamed = (syntax, name) => syntax[0] === '#'
+      ? `#${name}` // shorthand
+      : `${syntax}:${name}` // full syntax
 
-        it('should warn v-slot usage on non-component elements', () => {
-          const vm = new Vue({
-            template: `<div ${syntax}="foo"/>`
-          }).$mount()
-          expect(`v-slot can only be used on components or <template>`).toHaveBeenWarned()
-        })
-
-        it('should warn mixed usage', () => {
-          const vm = new Vue({
-            template: `<foo><bar slot="one" slot-scope="bar" ${syntax}="bar"></bar></foo>`,
-            components: { Foo, Bar }
-          }).$mount()
-          expect(`Unexpected mixed usage of different slot syntaxes`).toHaveBeenWarned()
-        })
-      }
+    function runSuite(syntax) {
+      it('default slot', () => {
+        const vm = new Vue({
+          template: `<foo ${syntax}="foo">{{ foo }}<div>{{ foo }}</div></foo>`,
+          components: { Foo }
+        }).$mount()
+        expect(vm.$el.innerHTML).toBe(`from foo default<div>from foo default</div>`)
+      })
 
-      // run tests for both full syntax and shorthand
-      runSuite('v-slot')
-      runSuite('#default')
+      it('nested default slots', () => {
+        const vm = new Vue({
+          template: `
+            <foo ${syntax}="foo">
+              <bar ${syntax}="bar">
+                <baz ${syntax}="baz">
+                  {{ foo }} | {{ bar }} | {{ baz }}
+                </baz>
+              </bar>
+            </foo>
+          `,
+          components: { Foo, Bar, Baz }
+        }).$mount()
+        expect(vm.$el.innerHTML.trim()).toBe(`from foo default | from bar | from baz`)
+      })
 
-      it('shorthand named slots', () => {
+      it('named slots', () => {
         const vm = new Vue({
           template: `
             <foo>
-              <template #default="foo">
+              <template ${toNamed(syntax, 'default')}="foo">
                 {{ foo }}
               </template>
-              <template #one="one">
+              <template ${toNamed(syntax, 'one')}="one">
                 {{ one }}
               </template>
-              <template #two="two">
+              <template ${toNamed(syntax, 'two')}="two">
                 {{ two }}
               </template>
             </foo>
@@ -767,62 +705,165 @@ describe('Component scoped slot', () => {
         expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
       })
 
-      it('should warn mixed root-default and named slots', () => {
+      it('nested + named + default slots', () => {
         const vm = new Vue({
           template: `
-            <foo #default="foo">
-              {{ foo }}
-              <template #one="one">
-                {{ one }}
+            <foo>
+              <template ${toNamed(syntax, 'one')}="one">
+                <bar ${syntax}="bar">
+                  {{ one }} {{ bar }}
+                </bar>
+              </template>
+              <template ${toNamed(syntax, 'two')}="two">
+                <baz ${syntax}="baz">
+                  {{ two }} {{ baz }}
+                </baz>
               </template>
             </foo>
           `,
-          components: { Foo }
+          components: { Foo, Bar, Baz }
         }).$mount()
-        expect(`default slot should also use <template>`).toHaveBeenWarned()
+        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from bar from foo two from baz`)
       })
 
-      it('shorthand without scope variable', () => {
+      it('should warn v-slot usage on non-component elements', () => {
         const vm = new Vue({
-          template: `
-            <foo>
-              <template #one>one</template>
-              <template #two>two</template>
-            </foo>
-          `,
-          components: { Foo }
+          template: `<div ${syntax}="foo"/>`
         }).$mount()
-        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`onetwo`)
+        expect(`v-slot can only be used on components or <template>`).toHaveBeenWarned()
       })
 
-      it('shorthand named slots on root', () => {
+      it('should warn mixed usage', () => {
         const vm = new Vue({
-          template: `
-            <foo #one="one">
-              {{ one }}
-            </foo>
-          `,
-          components: { Foo }
+          template: `<foo><bar slot="one" slot-scope="bar" ${syntax}="bar"></bar></foo>`,
+          components: { Foo, Bar }
         }).$mount()
-        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one`)
+        expect(`Unexpected mixed usage of different slot syntaxes`).toHaveBeenWarned()
       })
+    }
 
-      it('dynamic slot name', () => {
-        const vm = new Vue({
-          data: {
-            a: 'one',
-            b: 'two'
-          },
-          template: `
-            <foo>
-              <template #[a]="one">{{ one }} </template>
-              <template v-slot:[b]="two">{{ two }}</template>
-            </foo>
-          `,
-          components: { Foo }
-        }).$mount()
-        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one from foo two`)
-      })
+    // run tests for both full syntax and shorthand
+    runSuite('v-slot')
+    runSuite('#default')
+
+    it('shorthand named slots', () => {
+      const vm = new Vue({
+        template: `
+          <foo>
+            <template #default="foo">
+              {{ foo }}
+            </template>
+            <template #one="one">
+              {{ one }}
+            </template>
+            <template #two="two">
+              {{ two }}
+            </template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo default from foo one from foo two`)
+    })
+
+    it('should warn mixed root-default and named slots', () => {
+      const vm = new Vue({
+        template: `
+          <foo #default="foo">
+            {{ foo }}
+            <template #one="one">
+              {{ one }}
+            </template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(`default slot should also use <template>`).toHaveBeenWarned()
+    })
+
+    it('shorthand without scope variable', () => {
+      const vm = new Vue({
+        template: `
+          <foo>
+            <template #one>one</template>
+            <template #two>two</template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`onetwo`)
+    })
+
+    it('shorthand named slots on root', () => {
+      const vm = new Vue({
+        template: `
+          <foo #one="one">
+            {{ one }}
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`from foo one`)
     })
-  }
+
+    it('dynamic slot name', done => {
+      const vm = new Vue({
+        data: {
+          a: 'one',
+          b: 'two'
+        },
+        template: `
+          <foo>
+            <template #[a]="one">a {{ one }} </template>
+            <template v-slot:[b]="two">b {{ two }} </template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`a from foo one b from foo two`)
+      vm.a = 'two'
+      vm.b = 'one'
+      waitForUpdate(() => {
+        expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`b from foo one a from foo two `)
+      }).then(done)
+    })
+  })
+
+  // 2.6 scoped slot perf optimization
+  it('should have accurate tracking for scoped slots', done => {
+    const parentUpdate = jasmine.createSpy()
+    const childUpdate = jasmine.createSpy()
+    const vm = new Vue({
+      template: `
+        <div>{{ parentCount }}<foo #default>{{ childCount }}</foo></div>
+      `,
+      data: {
+        parentCount: 0,
+        childCount: 0
+      },
+      updated: parentUpdate,
+      components: {
+        foo: {
+          template: `<div><slot/></div>`,
+          updated: childUpdate
+        }
+      }
+    }).$mount()
+    expect(vm.$el.innerHTML).toMatch(`0<div>0</div>`)
+
+    vm.parentCount++
+    waitForUpdate(() => {
+      expect(vm.$el.innerHTML).toMatch(`1<div>0</div>`)
+      // should only trigger parent update
+      expect(parentUpdate.calls.count()).toBe(1)
+      expect(childUpdate.calls.count()).toBe(0)
+
+      vm.childCount++
+    }).then(() => {
+      expect(vm.$el.innerHTML).toMatch(`1<div>1</div>`)
+      // should only trigger child update
+      expect(parentUpdate.calls.count()).toBe(1)
+      expect(childUpdate.calls.count()).toBe(1)
+    }).then(done)
+  })
 })
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 7f5fbeae333..d857ecbcf02 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -229,6 +229,13 @@ describe('codegen', () => {
     )
   })
 
+  it('generate dynamic scoped slot', () => {
+    assertCodegen(
+      '<foo><template :slot="foo" slot-scope="bar">{{ bar }}</template></foo>',
+      `with(this){return _c('foo',{scopedSlots:_u([{key:foo,fn:function(bar){return [_v(_s(bar))]}}],true)})}`
+    )
+  })
+
   it('generate scoped slot with multiline v-if', () => {
     assertCodegen(
       '<foo><template v-if="\nshow\n" slot-scope="bar">{{ bar }}</template></foo>',

From dbc0582587f90e78867809bb6ae683301cd0626b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 25 Jan 2019 23:21:58 -0500
Subject: [PATCH 751/911] feat: dynamic directive arguments for v-on, v-bind
 and custom directives (#9373)

---
 flow/compiler.js                              |  12 +-
 flow/vnode.js                                 |   1 +
 src/compiler/codegen/events.js                |  27 ++--
 src/compiler/codegen/index.js                 |  32 +++--
 src/compiler/helpers.js                       |  50 +++++--
 src/compiler/parser/index.js                  |  73 +++++++----
 .../render-helpers/bind-dynamic-keys.js       |  35 +++++
 src/core/instance/render-helpers/index.js     |   3 +
 src/core/vdom/modules/directives.js           |   1 +
 test/unit/features/directives/bind.spec.js    | 124 ++++++++++++++++++
 test/unit/features/directives/on.spec.js      | 117 +++++++++++++++++
 test/unit/features/options/directives.spec.js |  22 ++++
 test/unit/modules/compiler/codegen.spec.js    |  20 +--
 test/unit/modules/compiler/parser.spec.js     |   9 +-
 types/vnode.d.ts                              |   1 +
 15 files changed, 459 insertions(+), 68 deletions(-)
 create mode 100644 src/core/instance/render-helpers/bind-dynamic-keys.js

diff --git a/flow/compiler.js b/flow/compiler.js
index a1af7a6cec8..ad09a2e2ebe 100644
--- a/flow/compiler.js
+++ b/flow/compiler.js
@@ -61,12 +61,20 @@ declare type ModuleOptions = {
 declare type ASTModifiers = { [key: string]: boolean };
 declare type ASTIfCondition = { exp: ?string; block: ASTElement };
 declare type ASTIfConditions = Array<ASTIfCondition>;
-declare type ASTAttr = { name: string; value: any; start?: number; end?: number };
+
+declare type ASTAttr = {
+  name: string;
+  value: any;
+  dynamic?: boolean;
+  start?: number;
+  end?: number
+};
 
 declare type ASTElementHandler = {
   value: string;
   params?: Array<any>;
   modifiers: ?ASTModifiers;
+  dynamic?: boolean;
   start?: number;
   end?: number;
 };
@@ -80,6 +88,7 @@ declare type ASTDirective = {
   rawName: string;
   value: string;
   arg: ?string;
+  isDynamicArg: boolean;
   modifiers: ?ASTModifiers;
   start?: number;
   end?: number;
@@ -109,6 +118,7 @@ declare type ASTElement = {
 
   text?: string;
   attrs?: Array<ASTAttr>;
+  dynamicAttrs?: Array<ASTAttr>;
   props?: Array<ASTAttr>;
   plain?: boolean;
   pre?: true;
diff --git a/flow/vnode.js b/flow/vnode.js
index 46fe3deac67..0521b33c5c3 100644
--- a/flow/vnode.js
+++ b/flow/vnode.js
@@ -71,6 +71,7 @@ declare type VNodeDirective = {
   value?: any;
   oldValue?: any;
   arg?: string;
+  oldArg?: string;
   modifiers?: ASTModifiers;
   def?: Object;
 };
diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 1beaed76a02..4a6f9af2358 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -56,11 +56,23 @@ export function genHandlers (
   events: ASTElementHandlers,
   isNative: boolean
 ): string {
-  let res = isNative ? 'nativeOn:{' : 'on:{'
+  const prefix = isNative ? 'nativeOn:' : 'on:'
+  let staticHandlers = ``
+  let dynamicHandlers = ``
   for (const name in events) {
-    res += `"${name}":${genHandler(name, events[name])},`
+    const handlerCode = genHandler(events[name])
+    if (events[name] && events[name].dynamic) {
+      dynamicHandlers += `${name},${handlerCode},`
+    } else {
+      staticHandlers += `"${name}":${handlerCode},`
+    }
+  }
+  staticHandlers = `{${staticHandlers.slice(0, -1)}}`
+  if (dynamicHandlers) {
+    return prefix + `_d(${staticHandlers},[${dynamicHandlers.slice(0, -1)}])`
+  } else {
+    return prefix + staticHandlers
   }
-  return res.slice(0, -1) + '}'
 }
 
 // Generate handler code with binding params on Weex
@@ -81,16 +93,13 @@ function genWeexHandler (params: Array<any>, handlerCode: string) {
     '}'
 }
 
-function genHandler (
-  name: string,
-  handler: ASTElementHandler | Array<ASTElementHandler>
-): string {
+function genHandler (handler: ASTElementHandler | Array<ASTElementHandler>): string {
   if (!handler) {
     return 'function(){}'
   }
 
   if (Array.isArray(handler)) {
-    return `[${handler.map(handler => genHandler(name, handler)).join(',')}]`
+    return `[${handler.map(handler => genHandler(handler)).join(',')}]`
   }
 
   const isMethodPath = simplePathRE.test(handler.value)
@@ -154,7 +163,7 @@ function genHandler (
 }
 
 function genKeyFilter (keys: Array<string>): string {
-  return `if(!('button' in $event)&&${keys.map(genFilterCode).join('&&')})return null;`
+  return `if(('keyCode' in $event)&&${keys.map(genFilterCode).join('&&')})return null;`
 }
 
 function genFilterCode (key: string): string {
diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 9f23b37e102..c8b701f02ed 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -248,11 +248,11 @@ export function genData (el: ASTElement, state: CodegenState): string {
   }
   // attributes
   if (el.attrs) {
-    data += `attrs:{${genProps(el.attrs)}},`
+    data += `attrs:${genProps(el.attrs)},`
   }
   // DOM props
   if (el.props) {
-    data += `domProps:{${genProps(el.props)}},`
+    data += `domProps:${genProps(el.props)},`
   }
   // event handlers
   if (el.events) {
@@ -288,6 +288,12 @@ export function genData (el: ASTElement, state: CodegenState): string {
     }
   }
   data = data.replace(/,$/, '') + '}'
+  // v-bind dynamic argument wrap
+  // v-bind with dynamic arguments must be applied using the same v-bind object
+  // merge helper so that class/style/mustUseProp attrs are handled correctly.
+  if (el.dynamicAttrs) {
+    data = `_b(${data},"${el.tag}",${genProps(el.dynamicAttrs)})`
+  }
   // v-bind data wrap
   if (el.wrapData) {
     data = el.wrapData(data)
@@ -319,7 +325,7 @@ function genDirectives (el: ASTElement, state: CodegenState): string | void {
       res += `{name:"${dir.name}",rawName:"${dir.rawName}"${
         dir.value ? `,value:(${dir.value}),expression:${JSON.stringify(dir.value)}` : ''
       }${
-        dir.arg ? `,arg:"${dir.arg}"` : ''
+        dir.arg ? `,arg:${dir.isDynamicArg ? dir.arg : `"${dir.arg}"`}` : ''
       }${
         dir.modifiers ? `,modifiers:${JSON.stringify(dir.modifiers)}` : ''
       }},`
@@ -510,17 +516,25 @@ function genComponent (
 }
 
 function genProps (props: Array<ASTAttr>): string {
-  let res = ''
+  let staticProps = ``
+  let dynamicProps = ``
   for (let i = 0; i < props.length; i++) {
     const prop = props[i]
-    /* istanbul ignore if */
-    if (__WEEX__) {
-      res += `"${prop.name}":${generateValue(prop.value)},`
+    const value = __WEEX__
+      ? generateValue(prop.value)
+      : transformSpecialNewlines(prop.value)
+    if (prop.dynamic) {
+      dynamicProps += `${prop.name},${value},`
     } else {
-      res += `"${prop.name}":${transformSpecialNewlines(prop.value)},`
+      staticProps += `"${prop.name}":${value},`
     }
   }
-  return res.slice(0, -1)
+  staticProps = `{${staticProps.slice(0, -1)}}`
+  if (dynamicProps) {
+    return `_d(${staticProps},[${dynamicProps.slice(0, -1)}])`
+  } else {
+    return staticProps
+  }
 }
 
 /* istanbul ignore next */
diff --git a/src/compiler/helpers.js b/src/compiler/helpers.js
index 0dd80b03883..7231d684cf4 100644
--- a/src/compiler/helpers.js
+++ b/src/compiler/helpers.js
@@ -20,13 +20,16 @@ export function pluckModuleFunction<F: Function> (
     : []
 }
 
-export function addProp (el: ASTElement, name: string, value: string, range?: Range) {
-  (el.props || (el.props = [])).push(rangeSetItem({ name, value }, range))
+export function addProp (el: ASTElement, name: string, value: string, range?: Range, dynamic?: boolean) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name, value, dynamic }, range))
   el.plain = false
 }
 
-export function addAttr (el: ASTElement, name: string, value: any, range?: Range) {
-  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name, value }, range))
+export function addAttr (el: ASTElement, name: string, value: any, range?: Range, dynamic?: boolean) {
+  const attrs = dynamic
+    ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+    : (el.attrs || (el.attrs = []))
+  attrs.push(rangeSetItem({ name, value, dynamic }, range))
   el.plain = false
 }
 
@@ -42,13 +45,27 @@ export function addDirective (
   rawName: string,
   value: string,
   arg: ?string,
+  isDynamicArg: boolean,
   modifiers: ?ASTModifiers,
   range?: Range
 ) {
-  (el.directives || (el.directives = [])).push(rangeSetItem({ name, rawName, value, arg, modifiers }, range))
+  (el.directives || (el.directives = [])).push(rangeSetItem({
+    name,
+    rawName,
+    value,
+    arg,
+    isDynamicArg,
+    modifiers
+  }, range))
   el.plain = false
 }
 
+function prependModifierMarker (symbol: string, name: string, dynamic?: boolean): string {
+  return dynamic
+    ? `_p(${name},"${symbol}")`
+    : symbol + name // mark the event as captured
+}
+
 export function addHandler (
   el: ASTElement,
   name: string,
@@ -56,7 +73,8 @@ export function addHandler (
   modifiers: ?ASTModifiers,
   important?: boolean,
   warn?: ?Function,
-  range?: Range
+  range?: Range,
+  dynamic?: boolean
 ) {
   modifiers = modifiers || emptyObject
   // warn prevent and passive modifier
@@ -75,11 +93,17 @@ export function addHandler (
   // normalize click.right and click.middle since they don't actually fire
   // this is technically browser-specific, but at least for now browsers are
   // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
+  if (modifiers.right) {
+    if (dynamic) {
+      name = `(${name})==='click'?'contextmenu':(${name})`
+    } else if (name === 'click') {
       name = 'contextmenu'
       delete modifiers.right
-    } else if (modifiers.middle) {
+    }
+  } else if (modifiers.middle) {
+    if (dynamic) {
+      name = `(${name})==='click'?'mouseup':(${name})`
+    } else if (name === 'click') {
       name = 'mouseup'
     }
   }
@@ -87,16 +111,16 @@ export function addHandler (
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture
-    name = '!' + name // mark the event as captured
+    name = prependModifierMarker('!', name, dynamic)
   }
   if (modifiers.once) {
     delete modifiers.once
-    name = '~' + name // mark the event as once
+    name = prependModifierMarker('~', name, dynamic)
   }
   /* istanbul ignore if */
   if (modifiers.passive) {
     delete modifiers.passive
-    name = '&' + name // mark the event as passive
+    name = prependModifierMarker('&', name, dynamic)
   }
 
   let events
@@ -107,7 +131,7 @@ export function addHandler (
     events = el.events || (el.events = {})
   }
 
-  const newHandler: any = rangeSetItem({ value: value.trim() }, range)
+  const newHandler: any = rangeSetItem({ value: value.trim(), dynamic }, range)
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers
   }
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 601dd8f26d9..e3433928059 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -26,7 +26,7 @@ export const dirRE = /^v-|^@|^:|^\./
 export const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
-const dynamicKeyRE = /^\[.*\]$/
+const dynamicArgRE = /^\[.*\]$/
 
 const argRE = /:(.*)$/
 export const bindRE = /^:|^\.|^v-bind:/
@@ -666,7 +666,7 @@ function getSlotName (binding) {
       )
     }
   }
-  return dynamicKeyRE.test(name)
+  return dynamicArgRE.test(name)
     // dynamic [name]
     ? { name: name.slice(1, -1), dynamic: true }
     // static name
@@ -700,7 +700,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   const list = el.attrsList
-  let i, l, name, rawName, value, modifiers, isProp, syncGen
+  let i, l, name, rawName, value, modifiers, syncGen, isDynamic
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name
     value = list[i].value
@@ -719,7 +719,10 @@ function processAttrs (el) {
       if (bindRE.test(name)) { // v-bind
         name = name.replace(bindRE, '')
         value = parseFilters(value)
-        isProp = false
+        isDynamic = dynamicArgRE.test(name)
+        if (isDynamic) {
+          name = name.slice(1, -1)
+        }
         if (
           process.env.NODE_ENV !== 'production' &&
           value.trim().length === 0
@@ -729,57 +732,79 @@ function processAttrs (el) {
           )
         }
         if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true
+          if (modifiers.prop && !isDynamic) {
             name = camelize(name)
             if (name === 'innerHtml') name = 'innerHTML'
           }
-          if (modifiers.camel) {
+          if (modifiers.camel && !isDynamic) {
             name = camelize(name)
           }
           if (modifiers.sync) {
             syncGen = genAssignmentCode(value, `$event`)
-            addHandler(
-              el,
-              `update:${camelize(name)}`,
-              syncGen,
-              null,
-              false,
-              warn,
-              list[i]
-            )
-            if (hyphenate(name) !== camelize(name)) {
+            if (!isDynamic) {
               addHandler(
                 el,
-                `update:${hyphenate(name)}`,
+                `update:${camelize(name)}`,
                 syncGen,
                 null,
                 false,
                 warn,
                 list[i]
               )
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  `update:${hyphenate(name)}`,
+                  syncGen,
+                  null,
+                  false,
+                  warn,
+                  list[i]
+                )
+              }
+            } else {
+              // handler w/ dynamic event name
+              addHandler(
+                el,
+                `"update:"+(${name})`,
+                syncGen,
+                null,
+                false,
+                warn,
+                list[i],
+                true // dynamic
+              )
             }
           }
         }
-        if (isProp || (
+        if ((modifiers && modifiers.prop) || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value, list[i])
+          addProp(el, name, value, list[i], isDynamic)
         } else {
-          addAttr(el, name, value, list[i])
+          addAttr(el, name, value, list[i], isDynamic)
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '')
-        addHandler(el, name, value, modifiers, false, warn, list[i])
+        isDynamic = dynamicArgRE.test(name)
+        if (isDynamic) {
+          name = name.slice(1, -1)
+        }
+        addHandler(el, name, value, modifiers, false, warn, list[i], isDynamic)
       } else { // normal directives
         name = name.replace(dirRE, '')
         // parse arg
         const argMatch = name.match(argRE)
-        const arg = argMatch && argMatch[1]
+        let arg = argMatch && argMatch[1]
+        isDynamic = false
         if (arg) {
           name = name.slice(0, -(arg.length + 1))
+          if (dynamicArgRE.test(arg)) {
+            arg = arg.slice(1, -1)
+            isDynamic = true
+          }
         }
-        addDirective(el, name, rawName, value, arg, modifiers, list[i])
+        addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i])
         if (process.env.NODE_ENV !== 'production' && name === 'model') {
           checkForAliasModel(el, value)
         }
diff --git a/src/core/instance/render-helpers/bind-dynamic-keys.js b/src/core/instance/render-helpers/bind-dynamic-keys.js
new file mode 100644
index 00000000000..ff37fc48b66
--- /dev/null
+++ b/src/core/instance/render-helpers/bind-dynamic-keys.js
@@ -0,0 +1,35 @@
+/* @flow */
+
+// helper to process dynamic keys for dynamic arguments in v-bind and v-on.
+// For example, the following template:
+//
+// <div id="foo" :[key]="value">
+//
+// compiles to the following:
+//
+// _c('div', { attrs: bindDynamicKeys({ "id": "app" }, [key, value]) })
+
+import { warn } from 'core/util/debug'
+
+export function bindDynamicKeys (baseObj: Object, values: Array<any>): Object {
+  for (let i = 0; i < values.length; i += 2) {
+    const key = values[i]
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1]
+    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        `Invalid value for dynamic directive argument (expected string or null): ${key}`,
+        this
+      )
+    }
+  }
+  return baseObj
+}
+
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+export function prependModifier (value: any, symbol: string): any {
+  return typeof value === 'string' ? symbol + value : value
+}
diff --git a/src/core/instance/render-helpers/index.js b/src/core/instance/render-helpers/index.js
index 38414a9ab53..e92801603e8 100644
--- a/src/core/instance/render-helpers/index.js
+++ b/src/core/instance/render-helpers/index.js
@@ -10,6 +10,7 @@ import { bindObjectProps } from './bind-object-props'
 import { renderStatic, markOnce } from './render-static'
 import { bindObjectListeners } from './bind-object-listeners'
 import { resolveScopedSlots } from './resolve-slots'
+import { bindDynamicKeys, prependModifier } from './bind-dynamic-keys'
 
 export function installRenderHelpers (target: any) {
   target._o = markOnce
@@ -27,4 +28,6 @@ export function installRenderHelpers (target: any) {
   target._e = createEmptyVNode
   target._u = resolveScopedSlots
   target._g = bindObjectListeners
+  target._d = bindDynamicKeys
+  target._p = prependModifier
 }
diff --git a/src/core/vdom/modules/directives.js b/src/core/vdom/modules/directives.js
index 639982fab59..ed76c6272ad 100644
--- a/src/core/vdom/modules/directives.js
+++ b/src/core/vdom/modules/directives.js
@@ -40,6 +40,7 @@ function _update (oldVnode, vnode) {
     } else {
       // existing directive, update
       dir.oldValue = oldDir.value
+      dir.oldArg = oldDir.arg
       callHook(dir, 'update', vnode, oldVnode)
       if (dir.def && dir.def.componentUpdated) {
         dirsWithPostpatch.push(dir)
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index 8d7f7c4847a..d0222450a50 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -473,4 +473,128 @@ describe('Directive v-bind', () => {
       expect(vm.$el.innerHTML).toBe('<div>comp</div>')
     })
   })
+
+  describe('dynamic arguments', () => {
+    it('basic', done => {
+      const vm = new Vue({
+        template: `<div v-bind:[key]="value"></div>`,
+        data: {
+          key: 'id',
+          value: 'hello'
+        }
+      }).$mount()
+      expect(vm.$el.id).toBe('hello')
+      vm.key = 'class'
+      waitForUpdate(() => {
+        expect(vm.$el.id).toBe('')
+        expect(vm.$el.className).toBe('hello')
+        // explicit null value
+        vm.key = null
+      }).then(() => {
+        expect(vm.$el.className).toBe('')
+        expect(vm.$el.id).toBe('')
+        vm.key = undefined
+      }).then(() => {
+        expect(`Invalid value for dynamic directive argument`).toHaveBeenWarned()
+      }).then(done)
+    })
+
+    it('shorthand', done => {
+      const vm = new Vue({
+        template: `<div :[key]="value"></div>`,
+        data: {
+          key: 'id',
+          value: 'hello'
+        }
+      }).$mount()
+      expect(vm.$el.id).toBe('hello')
+      vm.key = 'class'
+      waitForUpdate(() => {
+        expect(vm.$el.className).toBe('hello')
+      }).then(done)
+    })
+
+    it('with .prop modifier', done => {
+      const vm = new Vue({
+        template: `<div :[key].prop="value"></div>`,
+        data: {
+          key: 'id',
+          value: 'hello'
+        }
+      }).$mount()
+      expect(vm.$el.id).toBe('hello')
+      vm.key = 'textContent'
+      waitForUpdate(() => {
+        expect(vm.$el.textContent).toBe('hello')
+      }).then(done)
+    })
+
+    it('.prop shorthand', done => {
+      const vm = new Vue({
+        template: `<div .[key]="value"></div>`,
+        data: {
+          key: 'id',
+          value: 'hello'
+        }
+      }).$mount()
+      expect(vm.$el.id).toBe('hello')
+      vm.key = 'textContent'
+      waitForUpdate(() => {
+        expect(vm.$el.textContent).toBe('hello')
+      }).then(done)
+    })
+
+    it('handle class and style', () => {
+      const vm = new Vue({
+        template: `<div :[key]="value" :[key2]="value2"></div>`,
+        data: {
+          key: 'class',
+          value: ['hello', 'world'],
+          key2: 'style',
+          value2: {
+            color: 'red'
+          }
+        }
+      }).$mount()
+      expect(vm.$el.className).toBe('hello world')
+      expect(vm.$el.style.color).toBe('red')
+    })
+
+    it('handle shouldUseProp', done => {
+      const vm = new Vue({
+        template: `<input :[key]="value">`,
+        data: {
+          key: 'value',
+          value: 'foo'
+        }
+      }).$mount()
+      expect(vm.$el.value).toBe('foo')
+      vm.value = 'bar'
+      waitForUpdate(() => {
+        expect(vm.$el.value).toBe('bar')
+      }).then(done)
+    })
+
+    it('with .sync modifier', done => {
+      const vm = new Vue({
+        template: `<foo ref="child" :[key].sync="value"/>`,
+        data: {
+          key: 'foo',
+          value: 'bar'
+        },
+        components: {
+          foo: {
+            props: ['foo'],
+            template: `<div>{{ foo }}</div>`
+          }
+        }
+      }).$mount()
+      expect(vm.$el.textContent).toBe('bar')
+      vm.$refs.child.$emit('update:foo', 'baz')
+      waitForUpdate(() => {
+        expect(vm.value).toBe('baz')
+        expect(vm.$el.textContent).toBe('baz')
+      }).then(done)
+    })
+  })
 })
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index 74d65376494..a97ddaa8947 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -947,4 +947,121 @@ describe('Directive v-on', () => {
     }).$mount()
     expect(value).toBe(1)
   })
+
+  describe('dynamic arguments', () => {
+    it('basic', done => {
+      const spy = jasmine.createSpy()
+      const vm = new Vue({
+        template: `<div v-on:[key]="spy"></div>`,
+        data: {
+          key: 'click'
+        },
+        methods: {
+          spy
+        }
+      }).$mount()
+      triggerEvent(vm.$el, 'click')
+      expect(spy.calls.count()).toBe(1)
+      vm.key = 'mouseup'
+      waitForUpdate(() => {
+        triggerEvent(vm.$el, 'click')
+        expect(spy.calls.count()).toBe(1)
+        triggerEvent(vm.$el, 'mouseup')
+        expect(spy.calls.count()).toBe(2)
+        // explicit null value
+        vm.key = null
+      }).then(() => {
+        triggerEvent(vm.$el, 'click')
+        expect(spy.calls.count()).toBe(2)
+        triggerEvent(vm.$el, 'mouseup')
+        expect(spy.calls.count()).toBe(2)
+      }).then(done)
+    })
+
+    it('shorthand', done => {
+      const spy = jasmine.createSpy()
+      const vm = new Vue({
+        template: `<div @[key]="spy"></div>`,
+        data: {
+          key: 'click'
+        },
+        methods: {
+          spy
+        }
+      }).$mount()
+      triggerEvent(vm.$el, 'click')
+      expect(spy.calls.count()).toBe(1)
+      vm.key = 'mouseup'
+      waitForUpdate(() => {
+        triggerEvent(vm.$el, 'click')
+        expect(spy.calls.count()).toBe(1)
+        triggerEvent(vm.$el, 'mouseup')
+        expect(spy.calls.count()).toBe(2)
+      }).then(done)
+    })
+
+    it('with .middle modifier', () => {
+      const spy = jasmine.createSpy()
+      const vm = new Vue({
+        template: `<div @[key].middle="spy"></div>`,
+        data: {
+          key: 'click'
+        },
+        methods: {
+          spy
+        }
+      }).$mount()
+      triggerEvent(vm.$el, 'mouseup', e => { e.button = 0 })
+      expect(spy).not.toHaveBeenCalled()
+      triggerEvent(vm.$el, 'mouseup', e => { e.button = 1 })
+      expect(spy).toHaveBeenCalled()
+    })
+
+    it('with .right modifier', () => {
+      const spy = jasmine.createSpy()
+      const vm = new Vue({
+        template: `<div @[key].right="spy"></div>`,
+        data: {
+          key: 'click'
+        },
+        methods: {
+          spy
+        }
+      }).$mount()
+      triggerEvent(vm.$el, 'contextmenu')
+      expect(spy).toHaveBeenCalled()
+    })
+
+    it('with .capture modifier', () => {
+      const callOrder = []
+      const vm = new Vue({
+        template: `
+          <div @[key].capture="foo">
+            <div @[key]="bar"></div>
+          </div>
+        `,
+        data: {
+          key: 'click'
+        },
+        methods: {
+          foo () { callOrder.push(1) },
+          bar () { callOrder.push(2) }
+        }
+      }).$mount()
+      triggerEvent(vm.$el.firstChild, 'click')
+      expect(callOrder.toString()).toBe('1,2')
+    })
+
+    it('with .once modifier', () => {
+      const vm = new Vue({
+        template: `<div @[key].once="foo"></div>`,
+        data: { key: 'click' },
+        methods: { foo: spy }
+      }).$mount()
+      triggerEvent(vm.$el, 'click')
+      expect(spy.calls.count()).toBe(1)
+      triggerEvent(vm.$el, 'click')
+      expect(spy.calls.count()).toBe(1) // should no longer trigger
+    })
+  })
 })
diff --git a/test/unit/features/options/directives.spec.js b/test/unit/features/options/directives.spec.js
index f15dd77f8e6..4f9a23ce79c 100644
--- a/test/unit/features/options/directives.spec.js
+++ b/test/unit/features/options/directives.spec.js
@@ -265,4 +265,26 @@ describe('Options directives', () => {
       expect(dir.unbind.calls.argsFor(0)[0]).toBe(oldEl)
     }).then(done)
   })
+
+  it('dynamic arguments', done => {
+    const vm = new Vue({
+      template: `<div v-my:[key]="1"/>`,
+      data: {
+        key: 'foo'
+      },
+      directives: {
+        my: {
+          bind(el, binding) {
+            expect(binding.arg).toBe('foo')
+          },
+          update(el, binding) {
+            expect(binding.arg).toBe('bar')
+            expect(binding.oldArg).toBe('foo')
+            done()
+          }
+        }
+      }
+    }).$mount()
+    vm.key = 'bar'
+  })
 })
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index d857ecbcf02..d243f24a5eb 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -356,37 +356,37 @@ describe('codegen', () => {
   it('generate events with keycode', () => {
     assertCodegen(
       '<input @input.enter="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (delete)
     assertCodegen(
       '<input @input.delete="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (esc)
     assertCodegen(
       '<input @input.esc="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"esc",27,$event.key,["Esc","Escape"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"esc",27,$event.key,["Esc","Escape"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (space)
     assertCodegen(
       '<input @input.space="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"space",32,$event.key,[" ","Spacebar"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"space",32,$event.key,[" ","Spacebar"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (chained)
     assertCodegen(
       '<input @keydown.enter.delete="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
     )
     // number keycode
     assertCodegen(
       '<input @input.13="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&$event.keyCode!==13)return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&$event.keyCode!==13)return null;return onInput($event)}}})}`
     )
     // custom keycode
     assertCodegen(
       '<input @input.custom="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;return onInput($event)}}})}`
     )
   })
 
@@ -409,12 +409,12 @@ describe('codegen', () => {
   it('generate events with generic modifiers and keycode correct order', () => {
     assertCodegen(
       '<input @keydown.enter.prevent="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();return onInput($event)}}})}`
     )
 
     assertCodegen(
       '<input @keydown.enter.stop="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();return onInput($event)}}})}`
     )
   })
 
@@ -521,7 +521,7 @@ describe('codegen', () => {
     // with modifiers
     assertCodegen(
       `<input @keyup.enter="e=>current++">`,
-      `with(this){return _c('input',{on:{"keyup":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return (e=>current++)($event)}}})}`
+      `with(this){return _c('input',{on:{"keyup":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return (e=>current++)($event)}}})}`
     )
   })
 
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 4b7b0937b73..fcfb8be6ae1 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -537,12 +537,17 @@ describe('parser', () => {
 
   it('v-bind.prop shorthand syntax', () => {
     const ast = parse('<div .id="foo"></div>', baseOptions)
-    expect(ast.props).toEqual([{ name: 'id', value: 'foo'}])
+    expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: false }])
   })
 
   it('v-bind.prop shorthand syntax w/ modifiers', () => {
     const ast = parse('<div .id.mod="foo"></div>', baseOptions)
-    expect(ast.props).toEqual([{ name: 'id', value: 'foo'}])
+    expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: false }])
+  })
+
+  it('v-bind dynamic argument', () => {
+    const ast = parse('<div .[id]="foo"></div>', baseOptions)
+    expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: true }])
   })
 
   // #6887
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index 1116150645a..d296ee2e396 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -67,5 +67,6 @@ export interface VNodeDirective {
   oldValue?: any;
   expression?: any;
   arg?: string;
+  oldArg?: string;
   modifiers?: { [key: string]: boolean };
 }

From 90f47d1bc687b195aeda55c61c147296ff4dc45a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 25 Jan 2019 23:38:36 -0500
Subject: [PATCH 752/911] build: build 2.6.0-beta.2

---
 dist/vue.common.dev.js                      | 11667 +++++++++++++++++
 dist/vue.common.prod.js                     |     6 +
 dist/vue.esm.browser.js                     | 11724 ++++++++++++++++++
 dist/vue.esm.browser.min.js                 |     6 +
 dist/vue.esm.js                             |   440 +-
 dist/vue.js                                 |   403 +-
 dist/vue.min.js                             |     4 +-
 dist/vue.runtime.common.dev.js              |  8269 ++++++++++++
 dist/vue.runtime.common.prod.js             |     6 +
 dist/vue.runtime.esm.js                     |   119 +-
 dist/vue.runtime.js                         |   119 +-
 dist/vue.runtime.min.js                     |     4 +-
 packages/vue-server-renderer/basic.js       |   363 +-
 packages/vue-server-renderer/build.dev.js   |   402 +-
 packages/vue-server-renderer/build.prod.js  |     2 +-
 packages/vue-server-renderer/package.json   |     2 +-
 packages/vue-template-compiler/browser.js   |   286 +-
 packages/vue-template-compiler/build.js     |   323 +-
 packages/vue-template-compiler/package.json |     2 +-
 19 files changed, 33544 insertions(+), 603 deletions(-)
 create mode 100644 dist/vue.common.dev.js
 create mode 100644 dist/vue.common.prod.js
 create mode 100644 dist/vue.esm.browser.js
 create mode 100644 dist/vue.esm.browser.min.js
 create mode 100644 dist/vue.runtime.common.dev.js
 create mode 100644 dist/vue.runtime.common.prod.js

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
new file mode 100644
index 00000000000..8d7481b56bb
--- /dev/null
+++ b/dist/vue.common.dev.js
@@ -0,0 +1,11667 @@
+/*!
+ * Vue.js v2.6.0-beta.2
+ * (c) 2014-2019 Evan You
+ * Released under the MIT License.
+ */
+'use strict';
+
+/*  */
+
+var emptyObject = Object.freeze({});
+
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
+function isUndef (v) {
+  return v === undefined || v === null
+}
+
+function isDef (v) {
+  return v !== undefined && v !== null
+}
+
+function isTrue (v) {
+  return v === true
+}
+
+function isFalse (v) {
+  return v === false
+}
+
+/**
+ * Check if value is primitive.
+ */
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value, e.g., [object Object].
+ */
+var _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function isRegExp (v) {
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+function isPromise (val) {
+  return (
+    isDef(val) &&
+    typeof val.then === 'function' &&
+    typeof val.catch === 'function'
+  )
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+  return val == null
+    ? ''
+    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
+
+/**
+ * Convert an input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+  var n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  var map = Object.create(null);
+  var list = str.split(',');
+  for (var i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? function (val) { return map[val.toLowerCase()]; }
+    : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if an attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array.
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    var index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether an object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  var cache = Object.create(null);
+  return (function cachedFn (str) {
+    var hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
+ */
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+  start = start || 0;
+  var i = list.length - start;
+  var ret = new Array(i);
+  while (i--) {
+    ret[i] = list[i + start];
+  }
+  return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (var key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+  var res = {};
+  for (var i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i]);
+    }
+  }
+  return res
+}
+
+/* eslint-disable no-unused-vars */
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/* eslint-enable no-unused-vars */
+
+/**
+ * Return the same value.
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Generate a string containing static keys from compiler modules.
+ */
+function genStaticKeys (modules) {
+  return modules.reduce(function (keys, m) {
+    return keys.concat(m.staticKeys || [])
+  }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+  if (a === b) { return true }
+  var isObjectA = isObject(a);
+  var isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
+function looseIndexOf (arr, val) {
+  for (var i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) { return i }
+  }
+  return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+  var called = false;
+  return function () {
+    if (!called) {
+      called = true;
+      fn.apply(this, arguments);
+    }
+  }
+}
+
+var SSR_ATTR = 'data-server-rendered';
+
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured',
+  'serverPrefetch'
+];
+
+/*  */
+
+
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  // $flow-disable-line
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  // $flow-disable-line
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/*  */
+
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+  var c = (str + '').charCodeAt(0);
+  return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/**
+ * Parse simple path.
+ */
+var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  var segments = path.split('.');
+  return function (obj) {
+    for (var i = 0; i < segments.length; i++) {
+      if (!obj) { return }
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+var isPhantomJS = UA && /phantomjs/.test(UA);
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = /*@__PURE__*/(function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+{
+  var hasConsole = typeof console !== 'undefined';
+  var classifyRE = /(?:^|[-_])(\w)/g;
+  var classify = function (str) { return str
+    .replace(classifyRE, function (c) { return c.toUpperCase(); })
+    .replace(/[-_]/g, ''); };
+
+  warn = function (msg, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
+    }
+  };
+
+  tip = function (msg, vm) {
+    if (hasConsole && (!config.silent)) {
+      console.warn("[Vue tip]: " + msg + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = function (vm, includeFile) {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm;
+    var name = options.name || options._componentTag;
+    var file = options.__file;
+    if (!name && file) {
+      var match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+      (file && includeFile !== false ? (" at " + file) : '')
+    )
+  };
+
+  var repeat = function (str, n) {
+    var res = '';
+    while (n) {
+      if (n % 2 === 1) { res += str; }
+      if (n > 1) { str += str; }
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = function (vm) {
+    if (vm._isVue && vm.$parent) {
+      var tree = [];
+      var currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          var last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+            : formatComponentName(vm))); })
+        .join('\n')
+    } else {
+      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+    }
+  };
+}
+
+/*  */
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+  this.id = uid++;
+  this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+  this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+  remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+  if (Dep.target) {
+    Dep.target.addDep(this);
+  }
+};
+
+Dep.prototype.notify = function notify () {
+  // stabilize the subscriber list first
+  var subs = this.subs.slice();
+  if (!config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
+  for (var i = 0, l = subs.length; i < l; i++) {
+    subs[i].update();
+  }
+};
+
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
+Dep.target = null;
+var targetStack = [];
+
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
+}
+
+function popTarget () {
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
+}
+
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
+  cloned.isCloned = true;
+  return cloned
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
+  // cache original method
+  var original = arrayProto[method];
+  def(arrayMethods, method, function mutator () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    var result = original.apply(this, args);
+    var ob = this.__ob__;
+    var inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) { ob.observeArray(inserted); }
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
+ */
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
+
+/**
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatch updates.
+ */
+var Observer = function Observer (value) {
+  this.value = value;
+  this.dep = new Dep();
+  this.vmCount = 0;
+  def(value, '__ob__', this);
+  if (Array.isArray(value)) {
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
+    this.observeArray(value);
+  } else {
+    this.walk(value);
+  }
+};
+
+/**
+ * Walk through all properties and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+  var keys = Object.keys(obj);
+  for (var i = 0; i < keys.length; i++) {
+    defineReactive$$1(obj, keys[i]);
+  }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+  for (var i = 0, l = items.length; i < l; i++) {
+    observe(items[i]);
+  }
+};
+
+// helpers
+
+/**
+ * Augment a target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment a target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (var i = 0, l = keys.length; i < l; i++) {
+    var key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  var ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    shouldObserve &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive$$1 (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  var dep = new Dep();
+
+  var property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  var getter = property && property.get;
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
+    val = obj[key];
+  }
+
+  var childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      var value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      var value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if (customSetter) {
+        customSetter();
+      }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (key in target && !(key in Object.prototype)) {
+    target[key] = val;
+    return val
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive$$1(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.splice(key, 1);
+    return
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid deleting properties on a Vue instance or its root $data ' +
+      '- just set it to null.'
+    );
+    return
+  }
+  if (!hasOwn(target, key)) {
+    return
+  }
+  delete target[key];
+  if (!ob) {
+    return
+  }
+  ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        "option \"" + key + "\" can only be used during instance " +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) { return to }
+  var key, toVal, fromVal;
+
+  var keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from);
+
+  for (var i = 0; i < keys.length; i++) {
+    key = keys[i];
+    // in case the object is already observed...
+    if (key === '__ob__') { continue }
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+      )
+    }
+  } else {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      var instanceData = typeof childVal === 'function'
+        ? childVal.call(vm, vm)
+        : childVal;
+      var defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm, vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn(parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  var res = childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  var res = Object.create(parentVal || null);
+  if (childVal) {
+    assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
+  /* istanbul ignore if */
+  if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = {};
+  extend(ret, parentVal);
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key$1] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) { extend(ret, childVal); }
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+  for (var key in options.components) {
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'should conform to valid custom element name in html5 specification.'
+    );
+  }
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
+  }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+  var props = options.props;
+  if (!props) { return }
+  var res = {};
+  var i, val, name;
+  if (Array.isArray(props)) {
+    i = props.length;
+    while (i--) {
+      val = props[i];
+      if (typeof val === 'string') {
+        name = camelize(val);
+        res[name] = { type: null };
+      } else {
+        warn('props must be strings when using array syntax.');
+      }
+    }
+  } else if (isPlainObject(props)) {
+    for (var key in props) {
+      val = props[key];
+      name = camelize(key);
+      res[name] = isPlainObject(val)
+        ? val
+        : { type: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
+  }
+  options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+  var inject = options.inject;
+  if (!inject) { return }
+  var normalized = options.inject = {};
+  if (Array.isArray(inject)) {
+    for (var i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+  var dirs = options.directives;
+  if (dirs) {
+    for (var key in dirs) {
+      var def$$1 = dirs[key];
+      if (typeof def$$1 === 'function') {
+        dirs[key] = { bind: def$$1, update: def$$1 };
+      }
+    }
+  }
+}
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+  parent,
+  child,
+  vm
+) {
+  {
+    checkComponents(child);
+  }
+
+  if (typeof child === 'function') {
+    child = child.options;
+  }
+
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
+  normalizeDirectives(child);
+
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
+    }
+  }
+
+  var options = {};
+  var key;
+  for (key in parent) {
+    mergeField(key);
+  }
+  for (key in child) {
+    if (!hasOwn(parent, key)) {
+      mergeField(key);
+    }
+  }
+  function mergeField (key) {
+    var strat = strats[key] || defaultStrat;
+    options[key] = strat(parent[key], child[key], vm, key);
+  }
+  return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+  options,
+  type,
+  id,
+  warnMissing
+) {
+  /* istanbul ignore if */
+  if (typeof id !== 'string') {
+    return
+  }
+  var assets = options[type];
+  // check local registration variations first
+  if (hasOwn(assets, id)) { return assets[id] }
+  var camelizedId = camelize(id);
+  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+  var PascalCaseId = capitalize(camelizedId);
+  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+  // fallback to prototype chain
+  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+  if (warnMissing && !res) {
+    warn(
+      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+      options
+    );
+  }
+  return res
+}
+
+/*  */
+
+
+
+function validateProp (
+  key,
+  propOptions,
+  propsData,
+  vm
+) {
+  var prop = propOptions[key];
+  var absent = !hasOwn(propsData, key);
+  var value = propsData[key];
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
+    if (absent && !hasOwn(prop, 'default')) {
+      value = false;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
+    }
+  }
+  // check default value
+  if (value === undefined) {
+    value = getPropDefaultValue(vm, prop, key);
+    // since the default value is a fresh copy,
+    // make sure to observe it.
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
+    observe(value);
+    toggleObserving(prevShouldObserve);
+  }
+  {
+    assertProp(prop, key, value, vm, absent);
+  }
+  return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+  // no default, return undefined
+  if (!hasOwn(prop, 'default')) {
+    return undefined
+  }
+  var def = prop.default;
+  // warn against non-factory defaults for Object & Array
+  if (isObject(def)) {
+    warn(
+      'Invalid default value for prop "' + key + '": ' +
+      'Props with type Object/Array must use a factory function ' +
+      'to return the default value.',
+      vm
+    );
+  }
+  // the raw prop value was also undefined from previous render,
+  // return previous default value to avoid unnecessary watcher trigger
+  if (vm && vm.$options.propsData &&
+    vm.$options.propsData[key] === undefined &&
+    vm._props[key] !== undefined
+  ) {
+    return vm._props[key]
+  }
+  // call factory function for non-Function types
+  // a value is Function if its prototype is function even across different execution context
+  return typeof def === 'function' && getType(prop.type) !== 'Function'
+    ? def.call(vm)
+    : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+  prop,
+  name,
+  value,
+  vm,
+  absent
+) {
+  if (prop.required && absent) {
+    warn(
+      'Missing required prop: "' + name + '"',
+      vm
+    );
+    return
+  }
+  if (value == null && !prop.required) {
+    return
+  }
+  var type = prop.type;
+  var valid = !type || type === true;
+  var expectedTypes = [];
+  if (type) {
+    if (!Array.isArray(type)) {
+      type = [type];
+    }
+    for (var i = 0; i < type.length && !valid; i++) {
+      var assertedType = assertType(value, type[i]);
+      expectedTypes.push(assertedType.expectedType || '');
+      valid = assertedType.valid;
+    }
+  }
+
+  if (!valid) {
+    warn(
+      getInvalidTypeMessage(name, value, expectedTypes),
+      vm
+    );
+    return
+  }
+  var validator = prop.validator;
+  if (validator) {
+    if (!validator(value)) {
+      warn(
+        'Invalid prop: custom validator check failed for prop "' + name + '".',
+        vm
+      );
+    }
+  }
+}
+
+var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+  var valid;
+  var expectedType = getType(type);
+  if (simpleCheckRE.test(expectedType)) {
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
+  } else if (expectedType === 'Object') {
+    valid = isPlainObject(value);
+  } else if (expectedType === 'Array') {
+    valid = Array.isArray(value);
+  } else {
+    valid = value instanceof type;
+  }
+  return {
+    valid: valid,
+    expectedType: expectedType
+  }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+  var match = fn && fn.toString().match(/^\s*function (\w+)/);
+  return match ? match[1] : ''
+}
+
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
+  }
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
+    }
+  }
+  return -1
+}
+
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function invokeWithErrorHandling (
+  handler,
+  context,
+  args,
+  vm,
+  info
+) {
+  var res;
+  try {
+    res = args ? handler.apply(context, args) : handler.call(context);
+    if (isPromise(res)) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+    }
+  } catch (e) {
+    handleError(e, vm, info);
+  }
+  return res
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+
+var isUsingMicroTask = false;
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using microtasks.
+// In 2.5 we used (macro) tasks (in combination with microtasks).
+// However, it has subtle problems when state is changed right before repaint
+// (e.g. #6813, out-in transitions).
+// Also, using (macro) tasks in event handler would cause some weird behaviors
+// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+// So we now use microtasks everywhere, again.
+// A major drawback of this tradeoff is that there are some scenarios
+// where microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690, which have workarounds)
+// or even between bubbling of the same event (#6566).
+var timerFunc;
+
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  timerFunc = function () {
+    p.then(flushCallbacks);
+    // In problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+  isUsingMicroTask = true;
+} else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  var counter = 1;
+  var observer = new MutationObserver(flushCallbacks);
+  var textNode = document.createTextNode(String(counter));
+  observer.observe(textNode, {
+    characterData: true
+  });
+  timerFunc = function () {
+    counter = (counter + 1) % 2;
+    textNode.data = String(counter);
+  };
+  isUsingMicroTask = true;
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  // Fallback to setImmediate.
+  // Techinically it leverages the (macro) task queue,
+  // but it is still a better choice than setTimeout.
+  timerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else {
+  // Fallback to setTimeout.
+  timerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    timerFunc();
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
+var mark;
+var measure;
+
+{
+  var perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    mark = function (tag) { return perf.mark(tag); };
+    measure = function (name, startTag, endTag) {
+      perf.measure(name, startTag, endTag);
+      perf.clearMarks(startTag);
+      perf.clearMarks(endTag);
+      // perf.clearMeasures(name)
+    };
+  }
+}
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+var initProxy;
+
+{
+  var allowedGlobals = makeMap(
+    'Infinity,undefined,NaN,isFinite,isNaN,' +
+    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+    'require' // for Webpack/Browserify
+  );
+
+  var warnNonPresent = function (target, key) {
+    warn(
+      "Property or method \"" + key + "\" is not defined on the instance but " +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+      target
+    );
+  };
+
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
+  var hasProxy =
+    typeof Proxy !== 'undefined' && isNative(Proxy);
+
+  if (hasProxy) {
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+    config.keyCodes = new Proxy(config.keyCodes, {
+      set: function set (target, key, value) {
+        if (isBuiltInModifier(key)) {
+          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+          return false
+        } else {
+          target[key] = value;
+          return true
+        }
+      }
+    });
+  }
+
+  var hasHandler = {
+    has: function has (target, key) {
+      var has = key in target;
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
+      if (!has && !isAllowed) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return has || !isAllowed
+    }
+  };
+
+  var getHandler = {
+    get: function get (target, key) {
+      if (typeof key === 'string' && !(key in target)) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return target[key]
+    }
+  };
+
+  initProxy = function initProxy (vm) {
+    if (hasProxy) {
+      // determine which proxy handler to use
+      var options = vm.$options;
+      var handlers = options.render && options.render._withStripped
+        ? getHandler
+        : hasHandler;
+      vm._renderProxy = new Proxy(vm, handlers);
+    } else {
+      vm._renderProxy = vm;
+    }
+  };
+}
+
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+/*  */
+
+var normalizeEvent = cached(function (name) {
+  var passive = name.charAt(0) === '&';
+  name = passive ? name.slice(1) : name;
+  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+  name = once$$1 ? name.slice(1) : name;
+  var capture = name.charAt(0) === '!';
+  name = capture ? name.slice(1) : name;
+  return {
+    name: name,
+    once: once$$1,
+    capture: capture,
+    passive: passive
+  }
+});
+
+function createFnInvoker (fns, vm) {
+  function invoker () {
+    var arguments$1 = arguments;
+
+    var fns = invoker.fns;
+    if (Array.isArray(fns)) {
+      var cloned = fns.slice();
+      for (var i = 0; i < cloned.length; i++) {
+        invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
+      }
+    } else {
+      // return handler return value for single handlers
+      return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
+    }
+  }
+  invoker.fns = fns;
+  return invoker
+}
+
+function updateListeners (
+  on,
+  oldOn,
+  add,
+  remove$$1,
+  createOnceHandler,
+  vm
+) {
+  var name, def$$1, cur, old, event;
+  for (name in on) {
+    def$$1 = cur = on[name];
+    old = oldOn[name];
+    event = normalizeEvent(name);
+    if (isUndef(cur)) {
+      warn(
+        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+        vm
+      );
+    } else if (isUndef(old)) {
+      if (isUndef(cur.fns)) {
+        cur = on[name] = createFnInvoker(cur, vm);
+      }
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
+    } else if (cur !== old) {
+      old.fns = cur;
+      on[name] = old;
+    }
+  }
+  for (name in oldOn) {
+    if (isUndef(on[name])) {
+      event = normalizeEvent(name);
+      remove$$1(event.name, oldOn[name], event.capture);
+    }
+  }
+}
+
+/*  */
+
+function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
+  var invoker;
+  var oldHook = def[hookKey];
+
+  function wrappedHook () {
+    hook.apply(this, arguments);
+    // important: remove merged hook to ensure it's called only once
+    // and prevent memory leak
+    remove(invoker.fns, wrappedHook);
+  }
+
+  if (isUndef(oldHook)) {
+    // no existing hook
+    invoker = createFnInvoker([wrappedHook]);
+  } else {
+    /* istanbul ignore if */
+    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+      // already a merged invoker
+      invoker = oldHook;
+      invoker.fns.push(wrappedHook);
+    } else {
+      // existing plain hook
+      invoker = createFnInvoker([oldHook, wrappedHook]);
+    }
+  }
+
+  invoker.merged = true;
+  def[hookKey] = invoker;
+}
+
+/*  */
+
+function extractPropsFromVNodeData (
+  data,
+  Ctor,
+  tag
+) {
+  // we are only extracting raw values here.
+  // validation and default values are handled in the child
+  // component itself.
+  var propOptions = Ctor.options.props;
+  if (isUndef(propOptions)) {
+    return
+  }
+  var res = {};
+  var attrs = data.attrs;
+  var props = data.props;
+  if (isDef(attrs) || isDef(props)) {
+    for (var key in propOptions) {
+      var altKey = hyphenate(key);
+      {
+        var keyInLowerCase = key.toLowerCase();
+        if (
+          key !== keyInLowerCase &&
+          attrs && hasOwn(attrs, keyInLowerCase)
+        ) {
+          tip(
+            "Prop \"" + keyInLowerCase + "\" is passed to component " +
+            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+            " \"" + key + "\". " +
+            "Note that HTML attributes are case-insensitive and camelCased " +
+            "props need to use their kebab-case equivalents when using in-DOM " +
+            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+          );
+        }
+      }
+      checkProp(res, props, key, altKey, true) ||
+      checkProp(res, attrs, key, altKey, false);
+    }
+  }
+  return res
+}
+
+function checkProp (
+  res,
+  hash,
+  key,
+  altKey,
+  preserve
+) {
+  if (isDef(hash)) {
+    if (hasOwn(hash, key)) {
+      res[key] = hash[key];
+      if (!preserve) {
+        delete hash[key];
+      }
+      return true
+    } else if (hasOwn(hash, altKey)) {
+      res[key] = hash[altKey];
+      if (!preserve) {
+        delete hash[altKey];
+      }
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array<VNode>. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+  for (var i = 0; i < children.length; i++) {
+    if (Array.isArray(children[i])) {
+      return Array.prototype.concat.apply([], children)
+    }
+  }
+  return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. <template>, <slot>, v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+  return isPrimitive(children)
+    ? [createTextVNode(children)]
+    : Array.isArray(children)
+      ? normalizeArrayChildren(children)
+      : undefined
+}
+
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+  var res = [];
+  var i, c, lastIndex, last;
+  for (i = 0; i < children.length; i++) {
+    c = children[i];
+    if (isUndef(c) || typeof c === 'boolean') { continue }
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
+    //  nested
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
+    } else if (isPrimitive(c)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
+        res[lastIndex] = createTextVNode(last.text + c);
+      } else if (c !== '') {
+        // convert primitive to vnode
+        res.push(createTextVNode(c));
+      }
+    } else {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
+        res[lastIndex] = createTextVNode(last.text + c.text);
+      } else {
+        // default key for nested array children (likely generated by v-for)
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = "__vlist" + nestedIndex + "_" + i + "__";
+        }
+        res.push(c);
+      }
+    }
+  }
+  return res
+}
+
+/*  */
+
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
+
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
+}
+
+function resolveAsyncComponent (
+  factory,
+  baseCtor,
+  context
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  if (isDef(factory.contexts)) {
+    // already pending
+    factory.contexts.push(context);
+  } else {
+    var contexts = factory.contexts = [context];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = contexts.length; i < l; i++) {
+        contexts[i].$forceUpdate();
+      }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
+    };
+
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        contexts.length = 0;
+      }
+    });
+
+    var reject = once(function (reason) {
+      warn(
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
+      );
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
+  }
+}
+
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
+      }
+    }
+  }
+}
+
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
+  }
+}
+
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
+}
+
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    var vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    var vm = this;
+    {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
+      }
+    }
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
+    }
+    return vm
+  };
+}
+
+/*  */
+
+
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  var slots = {};
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
+  }
+  return slots
+}
+
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
+) {
+  res = res || { $stable: !hasDynamicKeys };
+  for (var i = 0; i < fns.length; i++) {
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else {
+      res[slot.key] = slot.fn;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var activeInstance = null;
+var isUpdatingChildComponent = false;
+
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
+function initLifecycle (vm) {
+  var options = vm.$options;
+
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
+    }
+    parent.$children.push(vm);
+  }
+
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
+
+  vm.$children = [];
+  vm.$refs = {};
+
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
+
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
+
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
+    }
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
+}
+
+function mountComponent (
+  vm,
+  el,
+  hydrating
+) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
+        warn(
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
+        );
+      }
+    }
+  }
+  callHook(vm, 'beforeMount');
+
+  var updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
+
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
+
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
+
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
+
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  }
+  return vm
+}
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+  {
+    isUpdatingChildComponent = true;
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
+}
+
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
+
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
+  }
+}
+
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
+
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  var info = hook + " hook";
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
+}
+
+/*  */
+
+var MAX_UPDATE_COUNT = 100;
+
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
+
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res ( relative to poge load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
+
+/*  */
+
+
+
+var uid$1 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$1; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
+    }
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
+  }
+  return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
+  }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
+    }
+  }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
+  }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
+    }
+  }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
+  }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
+    }
+    this.active = false;
+  }
+};
+
+/*  */
+
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
+
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
+  }
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
+    {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      warn(
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
+    }
+  }
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
+  }
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
+      );
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
+  } else {
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
+  }
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
+    }
+  }
+}
+
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
+
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
+
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
+  }
+  return vm.$watch(expOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
+
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
+    var vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
+    }
+    return function unwatchFn () {
+      watcher.teardown();
+    }
+  };
+}
+
+/*  */
+
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
+  }
+}
+
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
+      }
+    });
+    toggleObserving(true);
+  }
+}
+
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
+
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
+        }
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
+      }
+    }
+    return result
+  }
+}
+
+/*  */
+
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
+  }
+  res._normalized = true;
+  res.$stable = slots && slots.$stable;
+  return res
+}
+
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
+
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
+      }
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
+    }
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
+}
+
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
+  }
+}
+
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
+
+  data = data || {};
+
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
+
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
+
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
+    }
+  }
+
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
+
+  return vnode
+}
+
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnode.componentOptions.Ctor(options)
+}
+
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
+  }
+}
+
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
+  } else {
+    on[event] = callback;
+  }
+}
+
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
+
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
+}
+
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
+  }
+}
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    }
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
+
+/*  */
+
+var uid$3 = 0;
+
+function initMixin (Vue) {
+  Vue.prototype._init = function (options) {
+    var vm = this;
+    // a uid
+    vm._uid = uid$3++;
+
+    var startTag, endTag;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      startTag = "vue-perf-start:" + (vm._uid);
+      endTag = "vue-perf-end:" + (vm._uid);
+      mark(startTag);
+    }
+
+    // a flag to avoid this being observed
+    vm._isVue = true;
+    // merge options
+    if (options && options._isComponent) {
+      // optimize internal component instantiation
+      // since dynamic options merging is pretty slow, and none of the
+      // internal component options needs special treatment.
+      initInternalComponent(vm, options);
+    } else {
+      vm.$options = mergeOptions(
+        resolveConstructorOptions(vm.constructor),
+        options || {},
+        vm
+      );
+    }
+    /* istanbul ignore else */
+    {
+      initProxy(vm);
+    }
+    // expose real self
+    vm._self = vm;
+    initLifecycle(vm);
+    initEvents(vm);
+    initRender(vm);
+    callHook(vm, 'beforeCreate');
+    initInjections(vm); // resolve injections before data/props
+    initState(vm);
+    initProvide(vm); // resolve provide after data/props
+    callHook(vm, 'created');
+
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      vm._name = formatComponentName(vm, false);
+      mark(endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
+    }
+
+    if (vm.$options.el) {
+      vm.$mount(vm.$options.el);
+    }
+  };
+}
+
+function initInternalComponent (vm, options) {
+  var opts = vm.$options = Object.create(vm.constructor.options);
+  // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
+  opts.parent = options.parent;
+  opts._parentVnode = parentVnode;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
+  if (options.render) {
+    opts.render = options.render;
+    opts.staticRenderFns = options.staticRenderFns;
+  }
+}
+
+function resolveConstructorOptions (Ctor) {
+  var options = Ctor.options;
+  if (Ctor.super) {
+    var superOptions = resolveConstructorOptions(Ctor.super);
+    var cachedSuperOptions = Ctor.superOptions;
+    if (superOptions !== cachedSuperOptions) {
+      // super option changed,
+      // need to resolve new options.
+      Ctor.superOptions = superOptions;
+      // check if there are any late-modified/attached options (#4976)
+      var modifiedOptions = resolveModifiedOptions(Ctor);
+      // update base extend options
+      if (modifiedOptions) {
+        extend(Ctor.extendOptions, modifiedOptions);
+      }
+      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+      if (options.name) {
+        options.components[options.name] = Ctor;
+      }
+    }
+  }
+  return options
+}
+
+function resolveModifiedOptions (Ctor) {
+  var modified;
+  var latest = Ctor.options;
+  var sealed = Ctor.sealedOptions;
+  for (var key in latest) {
+    if (latest[key] !== sealed[key]) {
+      if (!modified) { modified = {}; }
+      modified[key] = latest[key];
+    }
+  }
+  return modified
+}
+
+function Vue (options) {
+  if (!(this instanceof Vue)
+  ) {
+    warn('Vue is a constructor and should be called with the `new` keyword');
+  }
+  this._init(options);
+}
+
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
+
+/*  */
+
+function initUse (Vue) {
+  Vue.use = function (plugin) {
+    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
+    }
+
+    // additional parameters
+    var args = toArray(arguments, 1);
+    args.unshift(this);
+    if (typeof plugin.install === 'function') {
+      plugin.install.apply(plugin, args);
+    } else if (typeof plugin === 'function') {
+      plugin.apply(null, args);
+    }
+    installedPlugins.push(plugin);
+    return this
+  };
+}
+
+/*  */
+
+function initMixin$1 (Vue) {
+  Vue.mixin = function (mixin) {
+    this.options = mergeOptions(this.options, mixin);
+    return this
+  };
+}
+
+/*  */
+
+function initExtend (Vue) {
+  /**
+   * Each instance constructor, including Vue, has a unique
+   * cid. This enables us to create wrapped "child
+   * constructors" for prototypal inheritance and cache them.
+   */
+  Vue.cid = 0;
+  var cid = 1;
+
+  /**
+   * Class inheritance
+   */
+  Vue.extend = function (extendOptions) {
+    extendOptions = extendOptions || {};
+    var Super = this;
+    var SuperId = Super.cid;
+    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+    if (cachedCtors[SuperId]) {
+      return cachedCtors[SuperId]
+    }
+
+    var name = extendOptions.name || Super.options.name;
+    if (name) {
+      validateComponentName(name);
+    }
+
+    var Sub = function VueComponent (options) {
+      this._init(options);
+    };
+    Sub.prototype = Object.create(Super.prototype);
+    Sub.prototype.constructor = Sub;
+    Sub.cid = cid++;
+    Sub.options = mergeOptions(
+      Super.options,
+      extendOptions
+    );
+    Sub['super'] = Super;
+
+    // For props and computed properties, we define the proxy getters on
+    // the Vue instances at extension time, on the extended prototype. This
+    // avoids Object.defineProperty calls for each instance created.
+    if (Sub.options.props) {
+      initProps$1(Sub);
+    }
+    if (Sub.options.computed) {
+      initComputed$1(Sub);
+    }
+
+    // allow further extension/mixin/plugin usage
+    Sub.extend = Super.extend;
+    Sub.mixin = Super.mixin;
+    Sub.use = Super.use;
+
+    // create asset registers, so extended classes
+    // can have their private assets too.
+    ASSET_TYPES.forEach(function (type) {
+      Sub[type] = Super[type];
+    });
+    // enable recursive self-lookup
+    if (name) {
+      Sub.options.components[name] = Sub;
+    }
+
+    // keep a reference to the super options at extension time.
+    // later at instantiation we can check if Super's options have
+    // been updated.
+    Sub.superOptions = Super.options;
+    Sub.extendOptions = extendOptions;
+    Sub.sealedOptions = extend({}, Sub.options);
+
+    // cache constructor
+    cachedCtors[SuperId] = Sub;
+    return Sub
+  };
+}
+
+function initProps$1 (Comp) {
+  var props = Comp.options.props;
+  for (var key in props) {
+    proxy(Comp.prototype, "_props", key);
+  }
+}
+
+function initComputed$1 (Comp) {
+  var computed = Comp.options.computed;
+  for (var key in computed) {
+    defineComputed(Comp.prototype, key, computed[key]);
+  }
+}
+
+/*  */
+
+function initAssetRegisters (Vue) {
+  /**
+   * Create asset registration methods.
+   */
+  ASSET_TYPES.forEach(function (type) {
+    Vue[type] = function (
+      id,
+      definition
+    ) {
+      if (!definition) {
+        return this.options[type + 's'][id]
+      } else {
+        /* istanbul ignore if */
+        if (type === 'component') {
+          validateComponentName(id);
+        }
+        if (type === 'component' && isPlainObject(definition)) {
+          definition.name = definition.name || id;
+          definition = this.options._base.extend(definition);
+        }
+        if (type === 'directive' && typeof definition === 'function') {
+          definition = { bind: definition, update: definition };
+        }
+        this.options[type + 's'][id] = definition;
+        return definition
+      }
+    };
+  });
+}
+
+/*  */
+
+
+
+function getComponentName (opts) {
+  return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
+    return pattern.split(',').indexOf(name) > -1
+  } else if (isRegExp(pattern)) {
+    return pattern.test(name)
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
+  for (var key in cache) {
+    var cachedNode = cache[key];
+    if (cachedNode) {
+      var name = getComponentName(cachedNode.componentOptions);
+      if (name && !filter(name)) {
+        pruneCacheEntry(cache, key, keys, _vnode);
+      }
+    }
+  }
+}
+
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+    cached$$1.componentInstance.$destroy();
+  }
+  cache[key] = null;
+  remove(keys, key);
+}
+
+var patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+  name: 'keep-alive',
+  abstract: true,
+
+  props: {
+    include: patternTypes,
+    exclude: patternTypes,
+    max: [String, Number]
+  },
+
+  created: function created () {
+    this.cache = Object.create(null);
+    this.keys = [];
+  },
+
+  destroyed: function destroyed () {
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
+    }
+  },
+
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
+  },
+
+  render: function render () {
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
+    var componentOptions = vnode && vnode.componentOptions;
+    if (componentOptions) {
+      // check pattern
+      var name = getComponentName(componentOptions);
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
+        return vnode
+      }
+
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
+      var key = vnode.key == null
+        // same constructor may get registered as different local components
+        // so cid alone is not enough (#3269)
+        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+        : vnode.key;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
+      } else {
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
+      }
+
+      vnode.data.keepAlive = true;
+    }
+    return vnode || (slot && slot[0])
+  }
+};
+
+var builtInComponents = {
+  KeepAlive: KeepAlive
+};
+
+/*  */
+
+function initGlobalAPI (Vue) {
+  // config
+  var configDef = {};
+  configDef.get = function () { return config; };
+  {
+    configDef.set = function () {
+      warn(
+        'Do not replace the Vue.config object, set individual fields instead.'
+      );
+    };
+  }
+  Object.defineProperty(Vue, 'config', configDef);
+
+  // exposed util methods.
+  // NOTE: these are not considered part of the public API - avoid relying on
+  // them unless you are aware of the risk.
+  Vue.util = {
+    warn: warn,
+    extend: extend,
+    mergeOptions: mergeOptions,
+    defineReactive: defineReactive$$1
+  };
+
+  Vue.set = set;
+  Vue.delete = del;
+  Vue.nextTick = nextTick;
+
+  // 2.6 explicit observable API
+  Vue.observable = function (obj) {
+    observe(obj);
+    return obj
+  };
+
+  Vue.options = Object.create(null);
+  ASSET_TYPES.forEach(function (type) {
+    Vue.options[type + 's'] = Object.create(null);
+  });
+
+  // this is used to identify the "base" constructor to extend all plain-object
+  // components with in Weex's multi-instance scenarios.
+  Vue.options._base = Vue;
+
+  extend(Vue.options.components, builtInComponents);
+
+  initUse(Vue);
+  initMixin$1(Vue);
+  initExtend(Vue);
+  initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue);
+
+Object.defineProperty(Vue.prototype, '$isServer', {
+  get: isServerRendering
+});
+
+Object.defineProperty(Vue.prototype, '$ssrContext', {
+  get: function get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.6.0-beta.2';
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+var xlinkNS = 'http://www.w3.org/1999/xlink';
+
+var isXlink = function (name) {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+var getXlinkProp = function (name) {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+var isFalsyAttrValue = function (val) {
+  return val == null || val === false
+};
+
+/*  */
+
+function genClassForVnode (vnode) {
+  var data = vnode.data;
+  var parentNode = vnode;
+  var childNode = vnode;
+  while (isDef(childNode.componentInstance)) {
+    childNode = childNode.componentInstance._vnode;
+    if (childNode && childNode.data) {
+      data = mergeClassData(childNode.data, data);
+    }
+  }
+  while (isDef(parentNode = parentNode.parent)) {
+    if (parentNode && parentNode.data) {
+      data = mergeClassData(data, parentNode.data);
+    }
+  }
+  return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+  return {
+    staticClass: concat(child.staticClass, parent.staticClass),
+    class: isDef(child.class)
+      ? [child.class, parent.class]
+      : parent.class
+  }
+}
+
+function renderClass (
+  staticClass,
+  dynamicClass
+) {
+  if (isDef(staticClass) || isDef(dynamicClass)) {
+    return concat(staticClass, stringifyClass(dynamicClass))
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function concat (a, b) {
+  return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+  if (Array.isArray(value)) {
+    return stringifyArray(value)
+  }
+  if (isObject(value)) {
+    return stringifyObject(value)
+  }
+  if (typeof value === 'string') {
+    return value
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function stringifyArray (value) {
+  var res = '';
+  var stringified;
+  for (var i = 0, l = value.length; i < l; i++) {
+    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+      if (res) { res += ' '; }
+      res += stringified;
+    }
+  }
+  return res
+}
+
+function stringifyObject (value) {
+  var res = '';
+  for (var key in value) {
+    if (value[key]) {
+      if (res) { res += ' '; }
+      res += key;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var namespaceMap = {
+  svg: 'http://www.w3.org/2000/svg',
+  math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+var isPreTag = function (tag) { return tag === 'pre'; };
+
+var isReservedTag = function (tag) {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+var unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+  /* istanbul ignore if */
+  if (!inBrowser) {
+    return true
+  }
+  if (isReservedTag(tag)) {
+    return false
+  }
+  tag = tag.toLowerCase();
+  /* istanbul ignore if */
+  if (unknownElementCache[tag] != null) {
+    return unknownElementCache[tag]
+  }
+  var el = document.createElement(tag);
+  if (tag.indexOf('-') > -1) {
+    // http://stackoverflow.com/a/28210364/1070244
+    return (unknownElementCache[tag] = (
+      el.constructor === window.HTMLUnknownElement ||
+      el.constructor === window.HTMLElement
+    ))
+  } else {
+    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+  }
+}
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+  if (typeof el === 'string') {
+    var selected = document.querySelector(el);
+    if (!selected) {
+      warn(
+        'Cannot find element: ' + el
+      );
+      return document.createElement('div')
+    }
+    return selected
+  } else {
+    return el
+  }
+}
+
+/*  */
+
+function createElement$1 (tagName, vnode) {
+  var elm = document.createElement(tagName);
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple');
+  }
+  return elm
+}
+
+function createElementNS (namespace, tagName) {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+  return document.createTextNode(text)
+}
+
+function createComment (text) {
+  return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+  parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+  node.removeChild(child);
+}
+
+function appendChild (node, child) {
+  node.appendChild(child);
+}
+
+function parentNode (node) {
+  return node.parentNode
+}
+
+function nextSibling (node) {
+  return node.nextSibling
+}
+
+function tagName (node) {
+  return node.tagName
+}
+
+function setTextContent (node, text) {
+  node.textContent = text;
+}
+
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
+}
+
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
+});
+
+/*  */
+
+var ref = {
+  create: function create (_, vnode) {
+    registerRef(vnode);
+  },
+  update: function update (oldVnode, vnode) {
+    if (oldVnode.data.ref !== vnode.data.ref) {
+      registerRef(oldVnode, true);
+      registerRef(vnode);
+    }
+  },
+  destroy: function destroy (vnode) {
+    registerRef(vnode, true);
+  }
+};
+
+function registerRef (vnode, isRemoval) {
+  var key = vnode.data.ref;
+  if (!isDef(key)) { return }
+
+  var vm = vnode.context;
+  var ref = vnode.componentInstance || vnode.elm;
+  var refs = vm.$refs;
+  if (isRemoval) {
+    if (Array.isArray(refs[key])) {
+      remove(refs[key], ref);
+    } else if (refs[key] === ref) {
+      refs[key] = undefined;
+    }
+  } else {
+    if (vnode.data.refInFor) {
+      if (!Array.isArray(refs[key])) {
+        refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
+      }
+    } else {
+      refs[key] = ref;
+    }
+  }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+var emptyNode = new VNode('', {}, []);
+
+var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function sameVnode (a, b) {
+  return (
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
+  )
+}
+
+function sameInputType (a, b) {
+  if (a.tag !== 'input') { return true }
+  var i;
+  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+  var i, key;
+  var map = {};
+  for (i = beginIdx; i <= endIdx; ++i) {
+    key = children[i].key;
+    if (isDef(key)) { map[key] = i; }
+  }
+  return map
+}
+
+function createPatchFunction (backend) {
+  var i, j;
+  var cbs = {};
+
+  var modules = backend.modules;
+  var nodeOps = backend.nodeOps;
+
+  for (i = 0; i < hooks.length; ++i) {
+    cbs[hooks[i]] = [];
+    for (j = 0; j < modules.length; ++j) {
+      if (isDef(modules[j][hooks[i]])) {
+        cbs[hooks[i]].push(modules[j][hooks[i]]);
+      }
+    }
+  }
+
+  function emptyNodeAt (elm) {
+    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+  }
+
+  function createRmCb (childElm, listeners) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
+        removeNode(childElm);
+      }
+    }
+    remove$$1.listeners = listeners;
+    return remove$$1
+  }
+
+  function removeNode (el) {
+    var parent = nodeOps.parentNode(el);
+    // element may have already been removed due to v-html / v-text
+    if (isDef(parent)) {
+      nodeOps.removeChild(parent, el);
+    }
+  }
+
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    vnode.isRootInsert = !nested; // for transition enter check
+    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+      return
+    }
+
+    var data = vnode.data;
+    var children = vnode.children;
+    var tag = vnode.tag;
+    if (isDef(tag)) {
+      {
+        if (data && data.pre) {
+          creatingElmInVPre++;
+        }
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+          warn(
+            'Unknown custom element: <' + tag + '> - did you ' +
+            'register the component correctly? For recursive components, ' +
+            'make sure to provide the "name" option.',
+            vnode.context
+          );
+        }
+      }
+
+      vnode.elm = vnode.ns
+        ? nodeOps.createElementNS(vnode.ns, tag)
+        : nodeOps.createElement(tag, vnode);
+      setScope(vnode);
+
+      /* istanbul ignore if */
+      {
+        createChildren(vnode, children, insertedVnodeQueue);
+        if (isDef(data)) {
+          invokeCreateHooks(vnode, insertedVnodeQueue);
+        }
+        insert(parentElm, vnode.elm, refElm);
+      }
+
+      if (data && data.pre) {
+        creatingElmInVPre--;
+      }
+    } else if (isTrue(vnode.isComment)) {
+      vnode.elm = nodeOps.createComment(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    } else {
+      vnode.elm = nodeOps.createTextNode(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    }
+  }
+
+  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i = vnode.data;
+    if (isDef(i)) {
+      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+      if (isDef(i = i.hook) && isDef(i = i.init)) {
+        i(vnode, false /* hydrating */);
+      }
+      // after calling the init hook, if the vnode is a child component
+      // it should've created a child instance and mounted it. the child
+      // component also has set the placeholder vnode's elm.
+      // in that case we can just return the element and be done.
+      if (isDef(vnode.componentInstance)) {
+        initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
+        if (isTrue(isReactivated)) {
+          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+        }
+        return true
+      }
+    }
+  }
+
+  function initComponent (vnode, insertedVnodeQueue) {
+    if (isDef(vnode.data.pendingInsert)) {
+      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
+    }
+    vnode.elm = vnode.componentInstance.$el;
+    if (isPatchable(vnode)) {
+      invokeCreateHooks(vnode, insertedVnodeQueue);
+      setScope(vnode);
+    } else {
+      // empty component root.
+      // skip all element-related modules except for ref (#3455)
+      registerRef(vnode);
+      // make sure to invoke the insert hook
+      insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i;
+    // hack for #4339: a reactivated component with inner transition
+    // does not trigger because the inner node's created hooks are not called
+    // again. It's not ideal to involve module-specific logic in here but
+    // there doesn't seem to be a better way to do it.
+    var innerNode = vnode;
+    while (innerNode.componentInstance) {
+      innerNode = innerNode.componentInstance._vnode;
+      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+        for (i = 0; i < cbs.activate.length; ++i) {
+          cbs.activate[i](emptyNode, innerNode);
+        }
+        insertedVnodeQueue.push(innerNode);
+        break
+      }
+    }
+    // unlike a newly created component,
+    // a reactivated keep-alive component doesn't insert itself
+    insert(parentElm, vnode.elm, refElm);
+  }
+
+  function insert (parent, elm, ref$$1) {
+    if (isDef(parent)) {
+      if (isDef(ref$$1)) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
+        }
+      } else {
+        nodeOps.appendChild(parent, elm);
+      }
+    }
+  }
+
+  function createChildren (vnode, children, insertedVnodeQueue) {
+    if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
+      for (var i = 0; i < children.length; ++i) {
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+      }
+    } else if (isPrimitive(vnode.text)) {
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+    }
+  }
+
+  function isPatchable (vnode) {
+    while (vnode.componentInstance) {
+      vnode = vnode.componentInstance._vnode;
+    }
+    return isDef(vnode.tag)
+  }
+
+  function invokeCreateHooks (vnode, insertedVnodeQueue) {
+    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+      cbs.create[i$1](emptyNode, vnode);
+    }
+    i = vnode.data.hook; // Reuse variable
+    if (isDef(i)) {
+      if (isDef(i.create)) { i.create(emptyNode, vnode); }
+      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+    }
+  }
+
+  // set scope id attribute for scoped CSS.
+  // this is implemented as a special case to avoid the overhead
+  // of going through the normal attribute patching process.
+  function setScope (vnode) {
+    var i;
+    if (isDef(i = vnode.fnScopeId)) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setStyleScope(vnode.elm, i);
+        }
+        ancestor = ancestor.parent;
+      }
+    }
+    // for slot content they should also get the scopeId from the host instance.
+    if (isDef(i = activeInstance) &&
+      i !== vnode.context &&
+      i !== vnode.fnContext &&
+      isDef(i = i.$options._scopeId)
+    ) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    }
+  }
+
+  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
+    }
+  }
+
+  function invokeDestroyHook (vnode) {
+    var i, j;
+    var data = vnode.data;
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+    }
+    if (isDef(i = vnode.children)) {
+      for (j = 0; j < vnode.children.length; ++j) {
+        invokeDestroyHook(vnode.children[j]);
+      }
+    }
+  }
+
+  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      var ch = vnodes[startIdx];
+      if (isDef(ch)) {
+        if (isDef(ch.tag)) {
+          removeAndInvokeRemoveHook(ch);
+          invokeDestroyHook(ch);
+        } else { // Text node
+          removeNode(ch.elm);
+        }
+      }
+    }
+  }
+
+  function removeAndInvokeRemoveHook (vnode, rm) {
+    if (isDef(rm) || isDef(vnode.data)) {
+      var i;
+      var listeners = cbs.remove.length + 1;
+      if (isDef(rm)) {
+        // we have a recursively passed down rm callback
+        // increase the listeners count
+        rm.listeners += listeners;
+      } else {
+        // directly removing
+        rm = createRmCb(vnode.elm, listeners);
+      }
+      // recursively invoke hooks on child component root node
+      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+        removeAndInvokeRemoveHook(i, rm);
+      }
+      for (i = 0; i < cbs.remove.length; ++i) {
+        cbs.remove[i](vnode, rm);
+      }
+      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+        i(vnode, rm);
+      } else {
+        rm();
+      }
+    } else {
+      removeNode(vnode.elm);
+    }
+  }
+
+  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+    var oldStartIdx = 0;
+    var newStartIdx = 0;
+    var oldEndIdx = oldCh.length - 1;
+    var oldStartVnode = oldCh[0];
+    var oldEndVnode = oldCh[oldEndIdx];
+    var newEndIdx = newCh.length - 1;
+    var newStartVnode = newCh[0];
+    var newEndVnode = newCh[newEndIdx];
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+    // removeOnly is a special flag used only by <transition-group>
+    // to ensure removed elements stay in correct relative positions
+    // during leaving transitions
+    var canMove = !removeOnly;
+
+    {
+      checkDuplicateKeys(newCh);
+    }
+
+    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+      if (isUndef(oldStartVnode)) {
+        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+      } else if (isUndef(oldEndVnode)) {
+        oldEndVnode = oldCh[--oldEndIdx];
+      } else if (sameVnode(oldStartVnode, newStartVnode)) {
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        oldStartVnode = oldCh[++oldStartIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else if (sameVnode(oldEndVnode, newEndVnode)) {
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+        oldStartVnode = oldCh[++oldStartIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else {
+        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+        if (isUndef(idxInOld)) { // New element
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+        } else {
+          vnodeToMove = oldCh[idxInOld];
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+            oldCh[idxInOld] = undefined;
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+          } else {
+            // same key but different element. treat as new element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          }
+        }
+        newStartVnode = newCh[++newStartIdx];
+      }
+    }
+    if (oldStartIdx > oldEndIdx) {
+      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+    } else if (newStartIdx > newEndIdx) {
+      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    }
+  }
+
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
+    if (oldVnode === vnode) {
+      return
+    }
+
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    var elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
+    // reuse element for static trees.
+    // note we only do this if the vnode is cloned -
+    // if the new node is not cloned it means the render functions have been
+    // reset by the hot-reload-api and we need to do a proper re-render.
+    if (isTrue(vnode.isStatic) &&
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
+      vnode.componentInstance = oldVnode.componentInstance;
+      return
+    }
+
+    var i;
+    var data = vnode.data;
+    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+      i(oldVnode, vnode);
+    }
+
+    var oldCh = oldVnode.children;
+    var ch = vnode.children;
+    if (isDef(data) && isPatchable(vnode)) {
+      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+    }
+    if (isUndef(vnode.text)) {
+      if (isDef(oldCh) && isDef(ch)) {
+        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+      } else if (isDef(ch)) {
+        {
+          checkDuplicateKeys(ch);
+        }
+        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+      } else if (isDef(oldCh)) {
+        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+      } else if (isDef(oldVnode.text)) {
+        nodeOps.setTextContent(elm, '');
+      }
+    } else if (oldVnode.text !== vnode.text) {
+      nodeOps.setTextContent(elm, vnode.text);
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+    }
+  }
+
+  function invokeInsertHook (vnode, queue, initial) {
+    // delay insert hooks for component root nodes, invoke them after the
+    // element is really inserted
+    if (isTrue(initial) && isDef(vnode.parent)) {
+      vnode.parent.data.pendingInsert = queue;
+    } else {
+      for (var i = 0; i < queue.length; ++i) {
+        queue[i].data.hook.insert(queue[i]);
+      }
+    }
+  }
+
+  var hydrationBailed = false;
+  // list of modules that can skip create hook during hydration because they
+  // are already rendered on the client or has no need for initialization
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+  // Note: this is a browser-only function so we can assume elms are DOM nodes.
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
+    // assert node match
+    {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
+        return false
+      }
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+      if (isDef(i = vnode.componentInstance)) {
+        // child component. it should have hydrated its own tree.
+        initComponent(vnode, insertedVnodeQueue);
+        return true
+      }
+    }
+    if (isDef(tag)) {
+      if (isDef(children)) {
+        // empty element, allow client to pick up and populate children
+        if (!elm.hasChildNodes()) {
+          createChildren(vnode, children, insertedVnodeQueue);
+        } else {
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
+            }
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
+            }
+          }
+        }
+      }
+      if (isDef(data)) {
+        var fullInvoke = false;
+        for (var key in data) {
+          if (!isRenderedModule(key)) {
+            fullInvoke = true;
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+            break
+          }
+        }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
+      }
+    } else if (elm.data !== vnode.text) {
+      elm.data = vnode.text;
+    }
+    return true
+  }
+
+  function assertNodeMatch (node, vnode, inVPre) {
+    if (isDef(vnode.tag)) {
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
+        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+      )
+    } else {
+      return node.nodeType === (vnode.isComment ? 8 : 3)
+    }
+  }
+
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
+    if (isUndef(vnode)) {
+      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+      return
+    }
+
+    var isInitialPatch = false;
+    var insertedVnodeQueue = [];
+
+    if (isUndef(oldVnode)) {
+      // empty mount (likely as component), create new root element
+      isInitialPatch = true;
+      createElm(vnode, insertedVnodeQueue);
+    } else {
+      var isRealElement = isDef(oldVnode.nodeType);
+      if (!isRealElement && sameVnode(oldVnode, vnode)) {
+        // patch existing root node
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
+      } else {
+        if (isRealElement) {
+          // mounting to a real element
+          // check if this is server-rendered content and if we can perform
+          // a successful hydration.
+          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+            oldVnode.removeAttribute(SSR_ATTR);
+            hydrating = true;
+          }
+          if (isTrue(hydrating)) {
+            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+              invokeInsertHook(vnode, insertedVnodeQueue, true);
+              return oldVnode
+            } else {
+              warn(
+                'The client-side rendered virtual DOM tree is not matching ' +
+                'server-rendered content. This is likely caused by incorrect ' +
+                'HTML markup, for example nesting block-level elements inside ' +
+                '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                'full client-side render.'
+              );
+            }
+          }
+          // either not server-rendered, or hydration failed.
+          // create an empty node and replace it
+          oldVnode = emptyNodeAt(oldVnode);
+        }
+
+        // replacing existing element
+        var oldElm = oldVnode.elm;
+        var parentElm = nodeOps.parentNode(oldElm);
+
+        // create new node
+        createElm(
+          vnode,
+          insertedVnodeQueue,
+          // extremely rare edge case: do not insert if old element is in a
+          // leaving transition. Only happens when combining transition +
+          // keep-alive + HOCs. (#4590)
+          oldElm._leaveCb ? null : parentElm,
+          nodeOps.nextSibling(oldElm)
+        );
+
+        // update parent placeholder node element, recursively
+        if (isDef(vnode.parent)) {
+          var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
+          while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
+            ancestor.elm = vnode.elm;
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
+            }
+            ancestor = ancestor.parent;
+          }
+        }
+
+        // destroy old node
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
+        } else if (isDef(oldVnode.tag)) {
+          invokeDestroyHook(oldVnode);
+        }
+      }
+    }
+
+    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+    return vnode.elm
+  }
+}
+
+/*  */
+
+var directives = {
+  create: updateDirectives,
+  update: updateDirectives,
+  destroy: function unbindDirectives (vnode) {
+    updateDirectives(vnode, emptyNode);
+  }
+};
+
+function updateDirectives (oldVnode, vnode) {
+  if (oldVnode.data.directives || vnode.data.directives) {
+    _update(oldVnode, vnode);
+  }
+}
+
+function _update (oldVnode, vnode) {
+  var isCreate = oldVnode === emptyNode;
+  var isDestroy = vnode === emptyNode;
+  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+  var dirsWithInsert = [];
+  var dirsWithPostpatch = [];
+
+  var key, oldDir, dir;
+  for (key in newDirs) {
+    oldDir = oldDirs[key];
+    dir = newDirs[key];
+    if (!oldDir) {
+      // new directive, bind
+      callHook$1(dir, 'bind', vnode, oldVnode);
+      if (dir.def && dir.def.inserted) {
+        dirsWithInsert.push(dir);
+      }
+    } else {
+      // existing directive, update
+      dir.oldValue = oldDir.value;
+      dir.oldArg = oldDir.arg;
+      callHook$1(dir, 'update', vnode, oldVnode);
+      if (dir.def && dir.def.componentUpdated) {
+        dirsWithPostpatch.push(dir);
+      }
+    }
+  }
+
+  if (dirsWithInsert.length) {
+    var callInsert = function () {
+      for (var i = 0; i < dirsWithInsert.length; i++) {
+        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+      }
+    };
+    if (isCreate) {
+      mergeVNodeHook(vnode, 'insert', callInsert);
+    } else {
+      callInsert();
+    }
+  }
+
+  if (dirsWithPostpatch.length) {
+    mergeVNodeHook(vnode, 'postpatch', function () {
+      for (var i = 0; i < dirsWithPostpatch.length; i++) {
+        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+      }
+    });
+  }
+
+  if (!isCreate) {
+    for (key in oldDirs) {
+      if (!newDirs[key]) {
+        // no longer present, unbind
+        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+      }
+    }
+  }
+}
+
+var emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+  dirs,
+  vm
+) {
+  var res = Object.create(null);
+  if (!dirs) {
+    // $flow-disable-line
+    return res
+  }
+  var i, dir;
+  for (i = 0; i < dirs.length; i++) {
+    dir = dirs[i];
+    if (!dir.modifiers) {
+      // $flow-disable-line
+      dir.modifiers = emptyModifiers;
+    }
+    res[getRawDirName(dir)] = dir;
+    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+  }
+  // $flow-disable-line
+  return res
+}
+
+function getRawDirName (dir) {
+  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+  var fn = dir.def && dir.def[hook];
+  if (fn) {
+    try {
+      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+    } catch (e) {
+      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+    }
+  }
+}
+
+var baseModules = [
+  ref,
+  directives
+];
+
+/*  */
+
+function updateAttrs (oldVnode, vnode) {
+  var opts = vnode.componentOptions;
+  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+    return
+  }
+  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+    return
+  }
+  var key, cur, old;
+  var elm = vnode.elm;
+  var oldAttrs = oldVnode.data.attrs || {};
+  var attrs = vnode.data.attrs || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(attrs.__ob__)) {
+    attrs = vnode.data.attrs = extend({}, attrs);
+  }
+
+  for (key in attrs) {
+    cur = attrs[key];
+    old = oldAttrs[key];
+    if (old !== cur) {
+      setAttr(elm, key, cur);
+    }
+  }
+  // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
+  /* istanbul ignore if */
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+    setAttr(elm, 'value', attrs.value);
+  }
+  for (key in oldAttrs) {
+    if (isUndef(attrs[key])) {
+      if (isXlink(key)) {
+        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else if (!isEnumeratedAttr(key)) {
+        elm.removeAttribute(key);
+      }
+    }
+  }
+}
+
+function setAttr (el, key, value) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
+    // set attribute for blank value
+    // e.g. <option disabled>Select one</option>
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
+    }
+  } else if (isEnumeratedAttr(key)) {
+    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+  } else if (isXlink(key)) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+    } else {
+      el.setAttributeNS(xlinkNS, key, value);
+    }
+  } else {
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
+    }
+    el.setAttribute(key, value);
+  }
+}
+
+var attrs = {
+  create: updateAttrs,
+  update: updateAttrs
+};
+
+/*  */
+
+function updateClass (oldVnode, vnode) {
+  var el = vnode.elm;
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+  if (
+    isUndef(data.staticClass) &&
+    isUndef(data.class) && (
+      isUndef(oldData) || (
+        isUndef(oldData.staticClass) &&
+        isUndef(oldData.class)
+      )
+    )
+  ) {
+    return
+  }
+
+  var cls = genClassForVnode(vnode);
+
+  // handle transition classes
+  var transitionClass = el._transitionClasses;
+  if (isDef(transitionClass)) {
+    cls = concat(cls, stringifyClass(transitionClass));
+  }
+
+  // set the class
+  if (cls !== el._prevClass) {
+    el.setAttribute('class', cls);
+    el._prevClass = cls;
+  }
+}
+
+var klass = {
+  create: updateClass,
+  update: updateClass
+};
+
+/*  */
+
+var validDivisionCharRE = /[\w).+\-_$\]]/;
+
+function parseFilters (exp) {
+  var inSingle = false;
+  var inDouble = false;
+  var inTemplateString = false;
+  var inRegex = false;
+  var curly = 0;
+  var square = 0;
+  var paren = 0;
+  var lastFilterIndex = 0;
+  var c, prev, i, expression, filters;
+
+  for (i = 0; i < exp.length; i++) {
+    prev = c;
+    c = exp.charCodeAt(i);
+    if (inSingle) {
+      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
+    } else if (inDouble) {
+      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
+    } else if (inTemplateString) {
+      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
+    } else if (inRegex) {
+      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
+    } else if (
+      c === 0x7C && // pipe
+      exp.charCodeAt(i + 1) !== 0x7C &&
+      exp.charCodeAt(i - 1) !== 0x7C &&
+      !curly && !square && !paren
+    ) {
+      if (expression === undefined) {
+        // first filter, end of expression
+        lastFilterIndex = i + 1;
+        expression = exp.slice(0, i).trim();
+      } else {
+        pushFilter();
+      }
+    } else {
+      switch (c) {
+        case 0x22: inDouble = true; break         // "
+        case 0x27: inSingle = true; break         // '
+        case 0x60: inTemplateString = true; break // `
+        case 0x28: paren++; break                 // (
+        case 0x29: paren--; break                 // )
+        case 0x5B: square++; break                // [
+        case 0x5D: square--; break                // ]
+        case 0x7B: curly++; break                 // {
+        case 0x7D: curly--; break                 // }
+      }
+      if (c === 0x2f) { // /
+        var j = i - 1;
+        var p = (void 0);
+        // find first non-whitespace prev char
+        for (; j >= 0; j--) {
+          p = exp.charAt(j);
+          if (p !== ' ') { break }
+        }
+        if (!p || !validDivisionCharRE.test(p)) {
+          inRegex = true;
+        }
+      }
+    }
+  }
+
+  if (expression === undefined) {
+    expression = exp.slice(0, i).trim();
+  } else if (lastFilterIndex !== 0) {
+    pushFilter();
+  }
+
+  function pushFilter () {
+    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+    lastFilterIndex = i + 1;
+  }
+
+  if (filters) {
+    for (i = 0; i < filters.length; i++) {
+      expression = wrapFilter(expression, filters[i]);
+    }
+  }
+
+  return expression
+}
+
+function wrapFilter (exp, filter) {
+  var i = filter.indexOf('(');
+  if (i < 0) {
+    // _f: resolveFilter
+    return ("_f(\"" + filter + "\")(" + exp + ")")
+  } else {
+    var name = filter.slice(0, i);
+    var args = filter.slice(i + 1);
+    return ("_f(\"" + name + "\")(" + exp + (args !== ')' ? ',' + args : args))
+  }
+}
+
+/*  */
+
+
+
+/* eslint-disable no-unused-vars */
+function baseWarn (msg, range) {
+  console.error(("[Vue compiler]: " + msg));
+}
+/* eslint-enable no-unused-vars */
+
+function pluckModuleFunction (
+  modules,
+  key
+) {
+  return modules
+    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
+    : []
+}
+
+function addProp (el, name, value, range, dynamic) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
+  el.plain = false;
+}
+
+function addAttr (el, name, value, range, dynamic) {
+  var attrs = dynamic
+    ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+    : (el.attrs || (el.attrs = []));
+  attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value, range) {
+  el.attrsMap[name] = value;
+  el.attrsList.push(rangeSetItem({ name: name, value: value }, range));
+}
+
+function addDirective (
+  el,
+  name,
+  rawName,
+  value,
+  arg,
+  isDynamicArg,
+  modifiers,
+  range
+) {
+  (el.directives || (el.directives = [])).push(rangeSetItem({
+    name: name,
+    rawName: rawName,
+    value: value,
+    arg: arg,
+    isDynamicArg: isDynamicArg,
+    modifiers: modifiers
+  }, range));
+  el.plain = false;
+}
+
+function prependModifierMarker (symbol, name, dynamic) {
+  return dynamic
+    ? ("_p(" + name + ",\"" + symbol + "\")")
+    : symbol + name // mark the event as captured
+}
+
+function addHandler (
+  el,
+  name,
+  value,
+  modifiers,
+  important,
+  warn,
+  range,
+  dynamic
+) {
+  modifiers = modifiers || emptyObject;
+  // warn prevent and passive modifier
+  /* istanbul ignore if */
+  if (
+    warn &&
+    modifiers.prevent && modifiers.passive
+  ) {
+    warn(
+      'passive and prevent can\'t be used together. ' +
+      'Passive handler can\'t prevent default event.',
+      range
+    );
+  }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (modifiers.right) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
+    } else if (name === 'click') {
+      name = 'contextmenu';
+      delete modifiers.right;
+    }
+  } else if (modifiers.middle) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
+    } else if (name === 'click') {
+      name = 'mouseup';
+    }
+  }
+
+  // check capture modifier
+  if (modifiers.capture) {
+    delete modifiers.capture;
+    name = prependModifierMarker('!', name, dynamic);
+  }
+  if (modifiers.once) {
+    delete modifiers.once;
+    name = prependModifierMarker('~', name, dynamic);
+  }
+  /* istanbul ignore if */
+  if (modifiers.passive) {
+    delete modifiers.passive;
+    name = prependModifierMarker('&', name, dynamic);
+  }
+
+  var events;
+  if (modifiers.native) {
+    delete modifiers.native;
+    events = el.nativeEvents || (el.nativeEvents = {});
+  } else {
+    events = el.events || (el.events = {});
+  }
+
+  var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
+  var handlers = events[name];
+  /* istanbul ignore if */
+  if (Array.isArray(handlers)) {
+    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+  } else if (handlers) {
+    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+  } else {
+    events[name] = newHandler;
+  }
+
+  el.plain = false;
+}
+
+function getRawBindingAttr (
+  el,
+  name
+) {
+  return el.rawAttrsMap[':' + name] ||
+    el.rawAttrsMap['v-bind:' + name] ||
+    el.rawAttrsMap[name]
+}
+
+function getBindingAttr (
+  el,
+  name,
+  getStatic
+) {
+  var dynamicValue =
+    getAndRemoveAttr(el, ':' + name) ||
+    getAndRemoveAttr(el, 'v-bind:' + name);
+  if (dynamicValue != null) {
+    return parseFilters(dynamicValue)
+  } else if (getStatic !== false) {
+    var staticValue = getAndRemoveAttr(el, name);
+    if (staticValue != null) {
+      return JSON.stringify(staticValue)
+    }
+  }
+}
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
+  var val;
+  if ((val = el.attrsMap[name]) != null) {
+    var list = el.attrsList;
+    for (var i = 0, l = list.length; i < l; i++) {
+      if (list[i].name === name) {
+        list.splice(i, 1);
+        break
+      }
+    }
+  }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
+  return val
+}
+
+function getAndRemoveAttrByRegex (
+  el,
+  name
+) {
+  var list = el.attrsList;
+  for (var i = 0, l = list.length; i < l; i++) {
+    var attr = list[i];
+    if (name.test(attr.name)) {
+      list.splice(i, 1);
+      return attr
+    }
+  }
+}
+
+function rangeSetItem (
+  item,
+  range
+) {
+  if (range) {
+    if (range.start != null) {
+      item.start = range.start;
+    }
+    if (range.end != null) {
+      item.end = range.end;
+    }
+  }
+  return item
+}
+
+/*  */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  var ref = modifiers || {};
+  var number = ref.number;
+  var trim = ref.trim;
+
+  var baseValueExpression = '$$v';
+  var valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      "(typeof " + baseValueExpression + " === 'string'" +
+      "? " + baseValueExpression + ".trim()" +
+      ": " + baseValueExpression + ")";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+  var assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: ("(" + value + ")"),
+    expression: JSON.stringify(value),
+    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  var res = parseModel(value);
+  if (res.key === null) {
+    return (value + "=" + assignment)
+  } else {
+    return ("$set(" + (res.exp) + ", " + (res.key) + ", " + assignment + ")")
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+var len, str, chr, index$1, expressionPos, expressionEndPos;
+
+
+
+function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index$1)
+}
+
+function eof () {
+  return index$1 >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  var inBracket = 1;
+  expressionPos = index$1;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) { inBracket++; }
+    if (chr === 0x5D) { inBracket--; }
+    if (inBracket === 0) {
+      expressionEndPos = index$1;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  var stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
+    }
+  }
+}
+
+/*  */
+
+var warn$1;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
+
+function model (
+  el,
+  dir,
+  _warn
+) {
+  warn$1 = _warn;
+  var value = dir.value;
+  var modifiers = dir.modifiers;
+  var tag = el.tag;
+  var type = el.attrsMap.type;
+
+  {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$1(
+        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
+        "File inputs are read only. Use a v-on:change listener instead.",
+        el.rawAttrsMap['v-model']
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else {
+    warn$1(
+      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+      "v-model is not supported on this element type. " +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.',
+      el.rawAttrsMap['v-model']
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    "Array.isArray(" + value + ")" +
+    "?_i(" + value + "," + valueBinding + ")>-1" + (
+      trueValueBinding === 'true'
+        ? (":(" + value + ")")
+        : (":_q(" + value + "," + trueValueBinding + ")")
+    )
+  );
+  addHandler(el, 'change',
+    "var $$a=" + value + "," +
+        '$$el=$event.target,' +
+        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
+    'if(Array.isArray($$a)){' +
+      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
+          '$$i=_i($$a,$$v);' +
+      "if($$el.checked){$$i<0&&(" + (genAssignmentCode(value, '$$a.concat([$$v])')) + ")}" +
+      "else{$$i>-1&&(" + (genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')) + ")}" +
+    "}else{" + (genAssignmentCode(value, '$$c')) + "}",
+    null, true
+  );
+}
+
+function genRadioModel (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
+  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+  el,
+  value,
+  modifiers
+) {
+  var number = modifiers && modifiers.number;
+  var selectedVal = "Array.prototype.filter" +
+    ".call($event.target.options,function(o){return o.selected})" +
+    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
+    "return " + (number ? '_n(val)' : 'val') + "})";
+
+  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  var code = "var $$selectedVal = " + selectedVal + ";";
+  code = code + " " + (genAssignmentCode(value, assignment));
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  var type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
+  {
+    var value$1 = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    var typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value$1 && !typeBinding) {
+      var binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        binding + "=\"" + value$1 + "\" conflicts with v-model on the same element " +
+        'because the latter already expands to a value binding internally',
+        el.rawAttrsMap[binding]
+      );
+    }
+  }
+
+  var ref = modifiers || {};
+  var lazy = ref.lazy;
+  var number = ref.number;
+  var trim = ref.trim;
+  var needCompositionGuard = !lazy && type !== 'range';
+  var event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  var valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = "$event.target.value.trim()";
+  }
+  if (number) {
+    valueExpression = "_n(" + valueExpression + ")";
+  }
+
+  var code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = "if($event.target.composing)return;" + code;
+  }
+
+  addProp(el, 'value', ("(" + value + ")"));
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+// normalize v-model event tokens that can only be determined at runtime.
+// it's important to place the event as the first in the array because
+// the whole point is ensuring the v-model callback gets called before
+// user-attached handlers.
+function normalizeEvents (on) {
+  /* istanbul ignore if */
+  if (isDef(on[RANGE_TOKEN])) {
+    // IE input[type=range] only supports `change` event
+    var event = isIE ? 'change' : 'input';
+    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+    delete on[RANGE_TOKEN];
+  }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
+}
+
+var target$1;
+
+function createOnceHandler$1 (event, handler, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
+function add$1 (
+  name,
+  handler,
+  capture,
+  passive
+) {
+  // async edge case #6566: inner click event triggers patch, event handler
+  // attached to outer element during patch, and triggered again. This
+  // happens because browsers fire microtask ticks between event propagation.
+  // the solution is simple: we save the timestamp when a handler is attached,
+  // and the handler would only fire if the event passed to it was fired
+  // AFTER it was attached.
+  if (isUsingMicroTask) {
+    var attachedTimestamp = currentFlushTimestamp;
+    var original = handler;
+    handler = original._wrapper = function (e) {
+      if (e.timeStamp >= attachedTimestamp) {
+        return original.apply(this, arguments)
+      }
+    };
+  }
+  target$1.addEventListener(
+    name,
+    handler,
+    supportsPassive
+      ? { capture: capture, passive: passive }
+      : capture
+  );
+}
+
+function remove$2 (
+  name,
+  handler,
+  capture,
+  _target
+) {
+  (_target || target$1).removeEventListener(
+    name,
+    handler._wrapper || handler,
+    capture
+  );
+}
+
+function updateDOMListeners (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+    return
+  }
+  var on = vnode.data.on || {};
+  var oldOn = oldVnode.data.on || {};
+  target$1 = vnode.elm;
+  normalizeEvents(on);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
+  target$1 = undefined;
+}
+
+var events = {
+  create: updateDOMListeners,
+  update: updateDOMListeners
+};
+
+/*  */
+
+var svgContainer;
+
+function updateDOMProps (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+    return
+  }
+  var key, cur;
+  var elm = vnode.elm;
+  var oldProps = oldVnode.data.domProps || {};
+  var props = vnode.data.domProps || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(props.__ob__)) {
+    props = vnode.data.domProps = extend({}, props);
+  }
+
+  for (key in oldProps) {
+    if (isUndef(props[key])) {
+      elm[key] = '';
+    }
+  }
+  for (key in props) {
+    cur = props[key];
+    // ignore children if the node has textContent or innerHTML,
+    // as these will throw away existing DOM nodes and cause removal errors
+    // on subsequent patches (#3360)
+    if (key === 'textContent' || key === 'innerHTML') {
+      if (vnode.children) { vnode.children.length = 0; }
+      if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
+    }
+
+    // skip the update if old and new VDOM state is the same.
+    // the only exception is `value` where the DOM value may be temporarily
+    // out of sync with VDOM state due to focus, composition and modifiers.
+    // This also covers #4521 by skipping the unnecesarry `checked` update.
+    if (key !== 'value' && cur === oldProps[key]) {
+      continue
+    }
+
+    if (key === 'value') {
+      // store value as _value as well since
+      // non-string values will be stringified
+      elm._value = cur;
+      // avoid resetting cursor position when value is the same
+      var strCur = isUndef(cur) ? '' : String(cur);
+      if (shouldUpdateValue(elm, strCur)) {
+        elm.value = strCur;
+      }
+    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+      // IE doesn't support innerHTML for SVG elements
+      svgContainer = svgContainer || document.createElement('div');
+      svgContainer.innerHTML = "<svg>" + cur + "</svg>";
+      var svg = svgContainer.firstChild;
+      while (elm.firstChild) {
+        elm.removeChild(elm.firstChild);
+      }
+      while (svg.firstChild) {
+        elm.appendChild(svg.firstChild);
+      }
+    } else {
+      elm[key] = cur;
+    }
+  }
+}
+
+// check platforms/web/util/attrs.js acceptValue
+
+
+function shouldUpdateValue (elm, checkVal) {
+  return (!elm.composing && (
+    elm.tagName === 'OPTION' ||
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
+  ))
+}
+
+function isNotInFocusAndDirty (elm, checkVal) {
+  // return true when textbox (.number and .trim) loses focus and its value is
+  // not equal to the updated value
+  var notInFocus = true;
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm; } catch (e) {}
+  return notInFocus && elm.value !== checkVal
+}
+
+function isDirtyWithModifiers (elm, newVal) {
+  var value = elm.value;
+  var modifiers = elm._vModifiers; // injected by v-model runtime
+  if (isDef(modifiers)) {
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
+  }
+  return value !== newVal
+}
+
+var domProps = {
+  create: updateDOMProps,
+  update: updateDOMProps
+};
+
+/*  */
+
+var parseStyleText = cached(function (cssText) {
+  var res = {};
+  var listDelimiter = /;(?![^(]*\))/g;
+  var propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      var tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// merge static and dynamic style data on the same vnode
+function normalizeStyleData (data) {
+  var style = normalizeStyleBinding(data.style);
+  // static style is pre-processed into an object during compilation
+  // and is always a fresh object, so it's safe to merge into it
+  return data.staticStyle
+    ? extend(data.staticStyle, style)
+    : style
+}
+
+// normalize possible array / string values into Object
+function normalizeStyleBinding (bindingStyle) {
+  if (Array.isArray(bindingStyle)) {
+    return toObject(bindingStyle)
+  }
+  if (typeof bindingStyle === 'string') {
+    return parseStyleText(bindingStyle)
+  }
+  return bindingStyle
+}
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+function getStyle (vnode, checkChild) {
+  var res = {};
+  var styleData;
+
+  if (checkChild) {
+    var childNode = vnode;
+    while (childNode.componentInstance) {
+      childNode = childNode.componentInstance._vnode;
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
+        extend(res, styleData);
+      }
+    }
+  }
+
+  if ((styleData = normalizeStyleData(vnode.data))) {
+    extend(res, styleData);
+  }
+
+  var parentNode = vnode;
+  while ((parentNode = parentNode.parent)) {
+    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+      extend(res, styleData);
+    }
+  }
+  return res
+}
+
+/*  */
+
+var cssVarRE = /^--/;
+var importantRE = /\s*!important$/;
+var setProp = function (el, name, val) {
+  /* istanbul ignore if */
+  if (cssVarRE.test(name)) {
+    el.style.setProperty(name, val);
+  } else if (importantRE.test(val)) {
+    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+  } else {
+    var normalizedName = normalize(name);
+    if (Array.isArray(val)) {
+      // Support values array created by autoprefixer, e.g.
+      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+      // Set them one by one, and the browser will only set those it can recognize
+      for (var i = 0, len = val.length; i < len; i++) {
+        el.style[normalizedName] = val[i];
+      }
+    } else {
+      el.style[normalizedName] = val;
+    }
+  }
+};
+
+var vendorNames = ['Webkit', 'Moz', 'ms'];
+
+var emptyStyle;
+var normalize = cached(function (prop) {
+  emptyStyle = emptyStyle || document.createElement('div').style;
+  prop = camelize(prop);
+  if (prop !== 'filter' && (prop in emptyStyle)) {
+    return prop
+  }
+  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+  for (var i = 0; i < vendorNames.length; i++) {
+    var name = vendorNames[i] + capName;
+    if (name in emptyStyle) {
+      return name
+    }
+  }
+});
+
+function updateStyle (oldVnode, vnode) {
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+
+  if (isUndef(data.staticStyle) && isUndef(data.style) &&
+    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  ) {
+    return
+  }
+
+  var cur, name;
+  var el = vnode.elm;
+  var oldStaticStyle = oldData.staticStyle;
+  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+
+  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+  var oldStyle = oldStaticStyle || oldStyleBinding;
+
+  var style = normalizeStyleBinding(vnode.data.style) || {};
+
+  // store normalized style under a different key for next diff
+  // make sure to clone it if it's reactive, since the user likely wants
+  // to mutate it.
+  vnode.data.normalizedStyle = isDef(style.__ob__)
+    ? extend({}, style)
+    : style;
+
+  var newStyle = getStyle(vnode, true);
+
+  for (name in oldStyle) {
+    if (isUndef(newStyle[name])) {
+      setProp(el, name, '');
+    }
+  }
+  for (name in newStyle) {
+    cur = newStyle[name];
+    if (cur !== oldStyle[name]) {
+      // ie9 setting to null has no effect, must use empty string
+      setProp(el, name, cur == null ? '' : cur);
+    }
+  }
+}
+
+var style = {
+  create: updateStyle,
+  update: updateStyle
+};
+
+/*  */
+
+var whitespaceRE = /\s+/;
+
+/**
+ * Add class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function addClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
+    } else {
+      el.classList.add(cls);
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    if (cur.indexOf(' ' + cls + ' ') < 0) {
+      el.setAttribute('class', (cur + cls).trim());
+    }
+  }
+}
+
+/**
+ * Remove class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function removeClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
+    } else {
+      el.classList.remove(cls);
+    }
+    if (!el.classList.length) {
+      el.removeAttribute('class');
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    var tar = ' ' + cls + ' ';
+    while (cur.indexOf(tar) >= 0) {
+      cur = cur.replace(tar, ' ');
+    }
+    cur = cur.trim();
+    if (cur) {
+      el.setAttribute('class', cur);
+    } else {
+      el.removeAttribute('class');
+    }
+  }
+}
+
+/*  */
+
+function resolveTransition (def$$1) {
+  if (!def$$1) {
+    return
+  }
+  /* istanbul ignore else */
+  if (typeof def$$1 === 'object') {
+    var res = {};
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
+    }
+    extend(res, def$$1);
+    return res
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
+  }
+}
+
+var autoCssTransition = cached(function (name) {
+  return {
+    enterClass: (name + "-enter"),
+    enterToClass: (name + "-enter-to"),
+    enterActiveClass: (name + "-enter-active"),
+    leaveClass: (name + "-leave"),
+    leaveToClass: (name + "-leave-to"),
+    leaveActiveClass: (name + "-leave-active")
+  }
+});
+
+var hasTransition = inBrowser && !isIE9;
+var TRANSITION = 'transition';
+var ANIMATION = 'animation';
+
+// Transition property/event sniffing
+var transitionProp = 'transition';
+var transitionEndEvent = 'transitionend';
+var animationProp = 'animation';
+var animationEndEvent = 'animationend';
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    transitionProp = 'WebkitTransition';
+    transitionEndEvent = 'webkitTransitionEnd';
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    animationProp = 'WebkitAnimation';
+    animationEndEvent = 'webkitAnimationEnd';
+  }
+}
+
+// binding to window is necessary to make hot reload work in IE in strict mode
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
+
+function nextFrame (fn) {
+  raf(function () {
+    raf(fn);
+  });
+}
+
+function addTransitionClass (el, cls) {
+  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+  if (transitionClasses.indexOf(cls) < 0) {
+    transitionClasses.push(cls);
+    addClass(el, cls);
+  }
+}
+
+function removeTransitionClass (el, cls) {
+  if (el._transitionClasses) {
+    remove(el._transitionClasses, cls);
+  }
+  removeClass(el, cls);
+}
+
+function whenTransitionEnds (
+  el,
+  expectedType,
+  cb
+) {
+  var ref = getTransitionInfo(el, expectedType);
+  var type = ref.type;
+  var timeout = ref.timeout;
+  var propCount = ref.propCount;
+  if (!type) { return cb() }
+  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+  var ended = 0;
+  var end = function () {
+    el.removeEventListener(event, onEnd);
+    cb();
+  };
+  var onEnd = function (e) {
+    if (e.target === el) {
+      if (++ended >= propCount) {
+        end();
+      }
+    }
+  };
+  setTimeout(function () {
+    if (ended < propCount) {
+      end();
+    }
+  }, timeout + 1);
+  el.addEventListener(event, onEnd);
+}
+
+var transformRE = /\b(transform|all)(,|$)/;
+
+function getTransitionInfo (el, expectedType) {
+  var styles = window.getComputedStyle(el);
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
+  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
+  var animationTimeout = getTimeout(animationDelays, animationDurations);
+
+  var type;
+  var timeout = 0;
+  var propCount = 0;
+  /* istanbul ignore if */
+  if (expectedType === TRANSITION) {
+    if (transitionTimeout > 0) {
+      type = TRANSITION;
+      timeout = transitionTimeout;
+      propCount = transitionDurations.length;
+    }
+  } else if (expectedType === ANIMATION) {
+    if (animationTimeout > 0) {
+      type = ANIMATION;
+      timeout = animationTimeout;
+      propCount = animationDurations.length;
+    }
+  } else {
+    timeout = Math.max(transitionTimeout, animationTimeout);
+    type = timeout > 0
+      ? transitionTimeout > animationTimeout
+        ? TRANSITION
+        : ANIMATION
+      : null;
+    propCount = type
+      ? type === TRANSITION
+        ? transitionDurations.length
+        : animationDurations.length
+      : 0;
+  }
+  var hasTransform =
+    type === TRANSITION &&
+    transformRE.test(styles[transitionProp + 'Property']);
+  return {
+    type: type,
+    timeout: timeout,
+    propCount: propCount,
+    hasTransform: hasTransform
+  }
+}
+
+function getTimeout (delays, durations) {
+  /* istanbul ignore next */
+  while (delays.length < durations.length) {
+    delays = delays.concat(delays);
+  }
+
+  return Math.max.apply(null, durations.map(function (d, i) {
+    return toMs(d) + toMs(delays[i])
+  }))
+}
+
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
+function toMs (s) {
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
+}
+
+/*  */
+
+function enter (vnode, toggleDisplay) {
+  var el = vnode.elm;
+
+  // call leave callback now
+  if (isDef(el._leaveCb)) {
+    el._leaveCb.cancelled = true;
+    el._leaveCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data)) {
+    return
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._enterCb) || el.nodeType !== 1) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var enterClass = data.enterClass;
+  var enterToClass = data.enterToClass;
+  var enterActiveClass = data.enterActiveClass;
+  var appearClass = data.appearClass;
+  var appearToClass = data.appearToClass;
+  var appearActiveClass = data.appearActiveClass;
+  var beforeEnter = data.beforeEnter;
+  var enter = data.enter;
+  var afterEnter = data.afterEnter;
+  var enterCancelled = data.enterCancelled;
+  var beforeAppear = data.beforeAppear;
+  var appear = data.appear;
+  var afterAppear = data.afterAppear;
+  var appearCancelled = data.appearCancelled;
+  var duration = data.duration;
+
+  // activeInstance will always be the <transition> component managing this
+  // transition. One edge case to check is when the <transition> is placed
+  // as the root node of a child component. In that case we need to check
+  // <transition>'s parent for appear check.
+  var context = activeInstance;
+  var transitionNode = activeInstance.$vnode;
+  while (transitionNode && transitionNode.parent) {
+    transitionNode = transitionNode.parent;
+    context = transitionNode.context;
+  }
+
+  var isAppear = !context._isMounted || !vnode.isRootInsert;
+
+  if (isAppear && !appear && appear !== '') {
+    return
+  }
+
+  var startClass = isAppear && appearClass
+    ? appearClass
+    : enterClass;
+  var activeClass = isAppear && appearActiveClass
+    ? appearActiveClass
+    : enterActiveClass;
+  var toClass = isAppear && appearToClass
+    ? appearToClass
+    : enterToClass;
+
+  var beforeEnterHook = isAppear
+    ? (beforeAppear || beforeEnter)
+    : beforeEnter;
+  var enterHook = isAppear
+    ? (typeof appear === 'function' ? appear : enter)
+    : enter;
+  var afterEnterHook = isAppear
+    ? (afterAppear || afterEnter)
+    : afterEnter;
+  var enterCancelledHook = isAppear
+    ? (appearCancelled || enterCancelled)
+    : enterCancelled;
+
+  var explicitEnterDuration = toNumber(
+    isObject(duration)
+      ? duration.enter
+      : duration
+  );
+
+  if (explicitEnterDuration != null) {
+    checkDuration(explicitEnterDuration, 'enter', vnode);
+  }
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(enterHook);
+
+  var cb = el._enterCb = once(function () {
+    if (expectsCSS) {
+      removeTransitionClass(el, toClass);
+      removeTransitionClass(el, activeClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, startClass);
+      }
+      enterCancelledHook && enterCancelledHook(el);
+    } else {
+      afterEnterHook && afterEnterHook(el);
+    }
+    el._enterCb = null;
+  });
+
+  if (!vnode.data.show) {
+    // remove pending leave element on enter by injecting an insert hook
+    mergeVNodeHook(vnode, 'insert', function () {
+      var parent = el.parentNode;
+      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
+      if (pendingNode &&
+        pendingNode.tag === vnode.tag &&
+        pendingNode.elm._leaveCb
+      ) {
+        pendingNode.elm._leaveCb();
+      }
+      enterHook && enterHook(el, cb);
+    });
+  }
+
+  // start enter transition
+  beforeEnterHook && beforeEnterHook(el);
+  if (expectsCSS) {
+    addTransitionClass(el, startClass);
+    addTransitionClass(el, activeClass);
+    nextFrame(function () {
+      removeTransitionClass(el, startClass);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
+        }
+      }
+    });
+  }
+
+  if (vnode.data.show) {
+    toggleDisplay && toggleDisplay();
+    enterHook && enterHook(el, cb);
+  }
+
+  if (!expectsCSS && !userWantsControl) {
+    cb();
+  }
+}
+
+function leave (vnode, rm) {
+  var el = vnode.elm;
+
+  // call enter callback now
+  if (isDef(el._enterCb)) {
+    el._enterCb.cancelled = true;
+    el._enterCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data) || el.nodeType !== 1) {
+    return rm()
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._leaveCb)) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var leaveClass = data.leaveClass;
+  var leaveToClass = data.leaveToClass;
+  var leaveActiveClass = data.leaveActiveClass;
+  var beforeLeave = data.beforeLeave;
+  var leave = data.leave;
+  var afterLeave = data.afterLeave;
+  var leaveCancelled = data.leaveCancelled;
+  var delayLeave = data.delayLeave;
+  var duration = data.duration;
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(leave);
+
+  var explicitLeaveDuration = toNumber(
+    isObject(duration)
+      ? duration.leave
+      : duration
+  );
+
+  if (isDef(explicitLeaveDuration)) {
+    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  }
+
+  var cb = el._leaveCb = once(function () {
+    if (el.parentNode && el.parentNode._pending) {
+      el.parentNode._pending[vnode.key] = null;
+    }
+    if (expectsCSS) {
+      removeTransitionClass(el, leaveToClass);
+      removeTransitionClass(el, leaveActiveClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveClass);
+      }
+      leaveCancelled && leaveCancelled(el);
+    } else {
+      rm();
+      afterLeave && afterLeave(el);
+    }
+    el._leaveCb = null;
+  });
+
+  if (delayLeave) {
+    delayLeave(performLeave);
+  } else {
+    performLeave();
+  }
+
+  function performLeave () {
+    // the delayed leave may have already been cancelled
+    if (cb.cancelled) {
+      return
+    }
+    // record leaving element
+    if (!vnode.data.show && el.parentNode) {
+      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+    }
+    beforeLeave && beforeLeave(el);
+    if (expectsCSS) {
+      addTransitionClass(el, leaveClass);
+      addTransitionClass(el, leaveActiveClass);
+      nextFrame(function () {
+        removeTransitionClass(el, leaveClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
+          }
+        }
+      });
+    }
+    leave && leave(el, cb);
+    if (!expectsCSS && !userWantsControl) {
+      cb();
+    }
+  }
+}
+
+// only used in dev mode
+function checkDuration (val, name, vnode) {
+  if (typeof val !== 'number') {
+    warn(
+      "<transition> explicit " + name + " duration is not a valid number - " +
+      "got " + (JSON.stringify(val)) + ".",
+      vnode.context
+    );
+  } else if (isNaN(val)) {
+    warn(
+      "<transition> explicit " + name + " duration is NaN - " +
+      'the duration expression might be incorrect.',
+      vnode.context
+    );
+  }
+}
+
+function isValidDuration (val) {
+  return typeof val === 'number' && !isNaN(val)
+}
+
+/**
+ * Normalize a transition hook's argument length. The hook may be:
+ * - a merged hook (invoker) with the original in .fns
+ * - a wrapped component method (check ._length)
+ * - a plain function (.length)
+ */
+function getHookArgumentsLength (fn) {
+  if (isUndef(fn)) {
+    return false
+  }
+  var invokerFns = fn.fns;
+  if (isDef(invokerFns)) {
+    // invoker
+    return getHookArgumentsLength(
+      Array.isArray(invokerFns)
+        ? invokerFns[0]
+        : invokerFns
+    )
+  } else {
+    return (fn._length || fn.length) > 1
+  }
+}
+
+function _enter (_, vnode) {
+  if (vnode.data.show !== true) {
+    enter(vnode);
+  }
+}
+
+var transition = inBrowser ? {
+  create: _enter,
+  activate: _enter,
+  remove: function remove$$1 (vnode, rm) {
+    /* istanbul ignore else */
+    if (vnode.data.show !== true) {
+      leave(vnode, rm);
+    } else {
+      rm();
+    }
+  }
+} : {};
+
+var platformModules = [
+  attrs,
+  klass,
+  events,
+  domProps,
+  style,
+  transition
+];
+
+/*  */
+
+// the directive module should be applied last, after all
+// built-in modules have been applied.
+var modules = platformModules.concat(baseModules);
+
+var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
+
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', function () {
+    var el = document.activeElement;
+    if (el && el.vmodel) {
+      trigger(el, 'input');
+    }
+  });
+}
+
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
+    if (vnode.tag === 'select') {
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
+      el._vOptions = [].map.call(el.options, getValue);
+    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+      el._vModifiers = binding.modifiers;
+      if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
+        // Safari < 10.2 & UIWebView doesn't fire compositionend when
+        // switching focus before confirming composition choice
+        // this also fixes the issue where some browsers e.g. iOS Chrome
+        // fires "change" instead of "input" on autocomplete.
+        el.addEventListener('change', onCompositionEnd);
+        /* istanbul ignore if */
+        if (isIE9) {
+          el.vmodel = true;
+        }
+      }
+    }
+  },
+
+  componentUpdated: function componentUpdated (el, binding, vnode) {
+    if (vnode.tag === 'select') {
+      setSelected(el, binding, vnode.context);
+      // in case the options rendered by v-for have changed,
+      // it's possible that the value is out-of-sync with the rendered options.
+      // detect such cases and filter out values that no longer has a matching
+      // option in the DOM.
+      var prevOptions = el._vOptions;
+      var curOptions = el._vOptions = [].map.call(el.options, getValue);
+      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
+      }
+    }
+  }
+};
+
+function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  var value = binding.value;
+  var isMultiple = el.multiple;
+  if (isMultiple && !Array.isArray(value)) {
+    warn(
+      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
+      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
+      vm
+    );
+    return
+  }
+  var selected, option;
+  for (var i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i];
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1;
+      if (option.selected !== selected) {
+        option.selected = selected;
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i;
+        }
+        return
+      }
+    }
+  }
+  if (!isMultiple) {
+    el.selectedIndex = -1;
+  }
+}
+
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
+function getValue (option) {
+  return '_value' in option
+    ? option._value
+    : option.value
+}
+
+function onCompositionStart (e) {
+  e.target.composing = true;
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) { return }
+  e.target.composing = false;
+  trigger(e.target, 'input');
+}
+
+function trigger (el, type) {
+  var e = document.createEvent('HTMLEvents');
+  e.initEvent(type, true, true);
+  el.dispatchEvent(e);
+}
+
+/*  */
+
+// recursively search for possible transition defined inside the component root
+function locateNode (vnode) {
+  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+    ? locateNode(vnode.componentInstance._vnode)
+    : vnode
+}
+
+var show = {
+  bind: function bind (el, ref, vnode) {
+    var value = ref.value;
+
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    var originalDisplay = el.__vOriginalDisplay =
+      el.style.display === 'none' ? '' : el.style.display;
+    if (value && transition$$1) {
+      vnode.data.show = true;
+      enter(vnode, function () {
+        el.style.display = originalDisplay;
+      });
+    } else {
+      el.style.display = value ? originalDisplay : 'none';
+    }
+  },
+
+  update: function update (el, ref, vnode) {
+    var value = ref.value;
+    var oldValue = ref.oldValue;
+
+    /* istanbul ignore if */
+    if (!value === !oldValue) { return }
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    if (transition$$1) {
+      vnode.data.show = true;
+      if (value) {
+        enter(vnode, function () {
+          el.style.display = el.__vOriginalDisplay;
+        });
+      } else {
+        leave(vnode, function () {
+          el.style.display = 'none';
+        });
+      }
+    } else {
+      el.style.display = value ? el.__vOriginalDisplay : 'none';
+    }
+  },
+
+  unbind: function unbind (
+    el,
+    binding,
+    vnode,
+    oldVnode,
+    isDestroy
+  ) {
+    if (!isDestroy) {
+      el.style.display = el.__vOriginalDisplay;
+    }
+  }
+};
+
+var platformDirectives = {
+  model: directive,
+  show: show
+};
+
+/*  */
+
+var transitionProps = {
+  name: String,
+  appear: Boolean,
+  css: Boolean,
+  mode: String,
+  type: String,
+  enterClass: String,
+  leaveClass: String,
+  enterToClass: String,
+  leaveToClass: String,
+  enterActiveClass: String,
+  leaveActiveClass: String,
+  appearClass: String,
+  appearActiveClass: String,
+  appearToClass: String,
+  duration: [Number, String, Object]
+};
+
+// in case the child is also an abstract component, e.g. <keep-alive>
+// we want to recursively retrieve the real component to be rendered
+function getRealChild (vnode) {
+  var compOptions = vnode && vnode.componentOptions;
+  if (compOptions && compOptions.Ctor.options.abstract) {
+    return getRealChild(getFirstComponentChild(compOptions.children))
+  } else {
+    return vnode
+  }
+}
+
+function extractTransitionData (comp) {
+  var data = {};
+  var options = comp.$options;
+  // props
+  for (var key in options.propsData) {
+    data[key] = comp[key];
+  }
+  // events.
+  // extract listeners and pass them directly to the transition methods
+  var listeners = options._parentListeners;
+  for (var key$1 in listeners) {
+    data[camelize(key$1)] = listeners[key$1];
+  }
+  return data
+}
+
+function placeholder (h, rawChild) {
+  if (/\d-keep-alive$/.test(rawChild.tag)) {
+    return h('keep-alive', {
+      props: rawChild.componentOptions.propsData
+    })
+  }
+}
+
+function hasParentTransition (vnode) {
+  while ((vnode = vnode.parent)) {
+    if (vnode.data.transition) {
+      return true
+    }
+  }
+}
+
+function isSameChild (child, oldChild) {
+  return oldChild.key === child.key && oldChild.tag === child.tag
+}
+
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
+var Transition = {
+  name: 'transition',
+  props: transitionProps,
+  abstract: true,
+
+  render: function render (h) {
+    var this$1 = this;
+
+    var children = this.$slots.default;
+    if (!children) {
+      return
+    }
+
+    // filter out text nodes (possible whitespaces)
+    children = children.filter(isNotTextNode);
+    /* istanbul ignore if */
+    if (!children.length) {
+      return
+    }
+
+    // warn multiple elements
+    if (children.length > 1) {
+      warn(
+        '<transition> can only be used on a single element. Use ' +
+        '<transition-group> for lists.',
+        this.$parent
+      );
+    }
+
+    var mode = this.mode;
+
+    // warn invalid mode
+    if (mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
+      warn(
+        'invalid <transition> mode: ' + mode,
+        this.$parent
+      );
+    }
+
+    var rawChild = children[0];
+
+    // if this is a component root node and the component's
+    // parent container node also has transition, skip.
+    if (hasParentTransition(this.$vnode)) {
+      return rawChild
+    }
+
+    // apply transition data to child
+    // use getRealChild() to ignore abstract components e.g. keep-alive
+    var child = getRealChild(rawChild);
+    /* istanbul ignore if */
+    if (!child) {
+      return rawChild
+    }
+
+    if (this._leaving) {
+      return placeholder(h, rawChild)
+    }
+
+    // ensure a key that is unique to the vnode type and to this transition
+    // component instance. This key will be used to remove pending leaving nodes
+    // during entering.
+    var id = "__transition-" + (this._uid) + "-";
+    child.key = child.key == null
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
+      : isPrimitive(child.key)
+        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+        : child.key;
+
+    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+    var oldRawChild = this._vnode;
+    var oldChild = getRealChild(oldRawChild);
+
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
+      child.data.show = true;
+    }
+
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+    ) {
+      // replace old child transition data with fresh one
+      // important for dynamic transitions!
+      var oldData = oldChild.data.transition = extend({}, data);
+      // handle transition mode
+      if (mode === 'out-in') {
+        // return placeholder node and queue update when leave finishes
+        this._leaving = true;
+        mergeVNodeHook(oldData, 'afterLeave', function () {
+          this$1._leaving = false;
+          this$1.$forceUpdate();
+        });
+        return placeholder(h, rawChild)
+      } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
+        var delayedLeave;
+        var performLeave = function () { delayedLeave(); };
+        mergeVNodeHook(data, 'afterEnter', performLeave);
+        mergeVNodeHook(data, 'enterCancelled', performLeave);
+        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+      }
+    }
+
+    return rawChild
+  }
+};
+
+/*  */
+
+var props = extend({
+  tag: String,
+  moveClass: String
+}, transitionProps);
+
+delete props.mode;
+
+var TransitionGroup = {
+  props: props,
+
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
+  render: function render (h) {
+    var tag = this.tag || this.$vnode.data.tag || 'span';
+    var map = Object.create(null);
+    var prevChildren = this.prevChildren = this.children;
+    var rawChildren = this.$slots.default || [];
+    var children = this.children = [];
+    var transitionData = extractTransitionData(this);
+
+    for (var i = 0; i < rawChildren.length; i++) {
+      var c = rawChildren[i];
+      if (c.tag) {
+        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+          children.push(c);
+          map[c.key] = c
+          ;(c.data || (c.data = {})).transition = transitionData;
+        } else {
+          var opts = c.componentOptions;
+          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+          warn(("<transition-group> children must be keyed: <" + name + ">"));
+        }
+      }
+    }
+
+    if (prevChildren) {
+      var kept = [];
+      var removed = [];
+      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
+        var c$1 = prevChildren[i$1];
+        c$1.data.transition = transitionData;
+        c$1.data.pos = c$1.elm.getBoundingClientRect();
+        if (map[c$1.key]) {
+          kept.push(c$1);
+        } else {
+          removed.push(c$1);
+        }
+      }
+      this.kept = h(tag, null, kept);
+      this.removed = removed;
+    }
+
+    return h(tag, null, children)
+  },
+
+  updated: function updated () {
+    var children = this.prevChildren;
+    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
+    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+      return
+    }
+
+    // we divide the work into three loops to avoid mixing DOM reads and writes
+    // in each iteration - which helps prevent layout thrashing.
+    children.forEach(callPendingCbs);
+    children.forEach(recordPosition);
+    children.forEach(applyTranslation);
+
+    // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
+    children.forEach(function (c) {
+      if (c.data.moved) {
+        var el = c.elm;
+        var s = el.style;
+        addTransitionClass(el, moveClass);
+        s.transform = s.WebkitTransform = s.transitionDuration = '';
+        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
+          if (!e || /transform$/.test(e.propertyName)) {
+            el.removeEventListener(transitionEndEvent, cb);
+            el._moveCb = null;
+            removeTransitionClass(el, moveClass);
+          }
+        });
+      }
+    });
+  },
+
+  methods: {
+    hasMove: function hasMove (el, moveClass) {
+      /* istanbul ignore if */
+      if (!hasTransition) {
+        return false
+      }
+      /* istanbul ignore if */
+      if (this._hasMove) {
+        return this._hasMove
+      }
+      // Detect whether an element with the move class applied has
+      // CSS transitions. Since the element may be inside an entering
+      // transition at this very moment, we make a clone of it and remove
+      // all other transition classes applied to ensure only the move class
+      // is applied.
+      var clone = el.cloneNode();
+      if (el._transitionClasses) {
+        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+      }
+      addClass(clone, moveClass);
+      clone.style.display = 'none';
+      this.$el.appendChild(clone);
+      var info = getTransitionInfo(clone);
+      this.$el.removeChild(clone);
+      return (this._hasMove = info.hasTransform)
+    }
+  }
+};
+
+function callPendingCbs (c) {
+  /* istanbul ignore if */
+  if (c.elm._moveCb) {
+    c.elm._moveCb();
+  }
+  /* istanbul ignore if */
+  if (c.elm._enterCb) {
+    c.elm._enterCb();
+  }
+}
+
+function recordPosition (c) {
+  c.data.newPos = c.elm.getBoundingClientRect();
+}
+
+function applyTranslation (c) {
+  var oldPos = c.data.pos;
+  var newPos = c.data.newPos;
+  var dx = oldPos.left - newPos.left;
+  var dy = oldPos.top - newPos.top;
+  if (dx || dy) {
+    c.data.moved = true;
+    var s = c.elm.style;
+    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
+    s.transitionDuration = '0s';
+  }
+}
+
+var platformComponents = {
+  Transition: Transition,
+  TransitionGroup: TransitionGroup
+};
+
+/*  */
+
+// install platform specific utils
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
+
+// install platform runtime directives & components
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
+
+// install platform patch function
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
+
+// public mount method
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && inBrowser ? query(el) : undefined;
+  return mountComponent(this, el, hydrating)
+};
+
+// devtools global hook
+/* istanbul ignore next */
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
+      console[console.info ? 'info' : 'log'](
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
+      );
+    }
+  }, 0);
+}
+
+/*  */
+
+var defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
+var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+var buildRegex = cached(function (delimiters) {
+  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
+  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
+  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+});
+
+
+
+function parseText (
+  text,
+  delimiters
+) {
+  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+  if (!tagRE.test(text)) {
+    return
+  }
+  var tokens = [];
+  var rawTokens = [];
+  var lastIndex = tagRE.lastIndex = 0;
+  var match, index, tokenValue;
+  while ((match = tagRE.exec(text))) {
+    index = match.index;
+    // push text token
+    if (index > lastIndex) {
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
+    }
+    // tag token
+    var exp = parseFilters(match[1].trim());
+    tokens.push(("_s(" + exp + ")"));
+    rawTokens.push({ '@binding': exp });
+    lastIndex = index + match[0].length;
+  }
+  if (lastIndex < text.length) {
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
+  }
+}
+
+/*  */
+
+function transformNode (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticClass = getAndRemoveAttr(el, 'class');
+  if (staticClass) {
+    var res = parseText(staticClass, options.delimiters);
+    if (res) {
+      warn(
+        "class=\"" + staticClass + "\": " +
+        'Interpolation inside attributes has been removed. ' +
+        'Use v-bind or the colon shorthand instead. For example, ' +
+        'instead of <div class="{{ val }}">, use <div :class="val">.',
+        el.rawAttrsMap['class']
+      );
+    }
+  }
+  if (staticClass) {
+    el.staticClass = JSON.stringify(staticClass);
+  }
+  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+  if (classBinding) {
+    el.classBinding = classBinding;
+  }
+}
+
+function genData (el) {
+  var data = '';
+  if (el.staticClass) {
+    data += "staticClass:" + (el.staticClass) + ",";
+  }
+  if (el.classBinding) {
+    data += "class:" + (el.classBinding) + ",";
+  }
+  return data
+}
+
+var klass$1 = {
+  staticKeys: ['staticClass'],
+  transformNode: transformNode,
+  genData: genData
+};
+
+/*  */
+
+function transformNode$1 (el, options) {
+  var warn = options.warn || baseWarn;
+  var staticStyle = getAndRemoveAttr(el, 'style');
+  if (staticStyle) {
+    /* istanbul ignore if */
+    {
+      var res = parseText(staticStyle, options.delimiters);
+      if (res) {
+        warn(
+          "style=\"" + staticStyle + "\": " +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div style="{{ val }}">, use <div :style="val">.',
+          el.rawAttrsMap['style']
+        );
+      }
+    }
+    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+  }
+
+  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+  if (styleBinding) {
+    el.styleBinding = styleBinding;
+  }
+}
+
+function genData$1 (el) {
+  var data = '';
+  if (el.staticStyle) {
+    data += "staticStyle:" + (el.staticStyle) + ",";
+  }
+  if (el.styleBinding) {
+    data += "style:(" + (el.styleBinding) + "),";
+  }
+  return data
+}
+
+var style$1 = {
+  staticKeys: ['staticStyle'],
+  transformNode: transformNode$1,
+  genData: genData$1
+};
+
+/*  */
+
+var decoder;
+
+var he = {
+  decode: function decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
+  }
+};
+
+/*  */
+
+var isUnaryTag = makeMap(
+  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+  'link,meta,param,source,track,wbr'
+);
+
+// Elements that you can, intentionally, leave open
+// (and which close themselves)
+var canBeLeftOpenTag = makeMap(
+  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+);
+
+// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+var isNonPhrasingTag = makeMap(
+  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+  'title,tr,track'
+);
+
+/**
+ * Not type-checking this file because it's mostly vendor code.
+ */
+
+// Regular Expressions for parsing tags and attributes
+var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
+var startTagOpen = new RegExp(("^<" + qnameCapture));
+var startTagClose = /^\s*(\/?)>/;
+var endTag = new RegExp(("^<\\/" + qnameCapture + "[^>]*>"));
+var doctype = /^<!DOCTYPE [^>]+>/i;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+var comment = /^<!\--/;
+var conditionalComment = /^<!\[/;
+
+// Special Elements (can contain anything)
+var isPlainTextElement = makeMap('script,style,textarea', true);
+var reCache = {};
+
+var decodingMap = {
+  '&lt;': '<',
+  '&gt;': '>',
+  '&quot;': '"',
+  '&amp;': '&',
+  '&#10;': '\n',
+  '&#9;': '\t'
+};
+var encodedAttr = /&(?:lt|gt|quot|amp);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+// #5992
+var isIgnoreNewlineTag = makeMap('pre,textarea', true);
+var shouldIgnoreFirstNewline = function (tag, html) { return tag && isIgnoreNewlineTag(tag) && html[0] === '\n'; };
+
+function decodeAttr (value, shouldDecodeNewlines) {
+  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+  return value.replace(re, function (match) { return decodingMap[match]; })
+}
+
+function parseHTML (html, options) {
+  var stack = [];
+  var expectHTML = options.expectHTML;
+  var isUnaryTag$$1 = options.isUnaryTag || no;
+  var canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+  var index = 0;
+  var last, lastTag;
+  while (html) {
+    last = html;
+    // Make sure we're not in a plaintext content element like script/style
+    if (!lastTag || !isPlainTextElement(lastTag)) {
+      var textEnd = html.indexOf('<');
+      if (textEnd === 0) {
+        // Comment:
+        if (comment.test(html)) {
+          var commentEnd = html.indexOf('-->');
+
+          if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
+            }
+            advance(commentEnd + 3);
+            continue
+          }
+        }
+
+        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+        if (conditionalComment.test(html)) {
+          var conditionalEnd = html.indexOf(']>');
+
+          if (conditionalEnd >= 0) {
+            advance(conditionalEnd + 2);
+            continue
+          }
+        }
+
+        // Doctype:
+        var doctypeMatch = html.match(doctype);
+        if (doctypeMatch) {
+          advance(doctypeMatch[0].length);
+          continue
+        }
+
+        // End tag:
+        var endTagMatch = html.match(endTag);
+        if (endTagMatch) {
+          var curIndex = index;
+          advance(endTagMatch[0].length);
+          parseEndTag(endTagMatch[1], curIndex, index);
+          continue
+        }
+
+        // Start tag:
+        var startTagMatch = parseStartTag();
+        if (startTagMatch) {
+          handleStartTag(startTagMatch);
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
+            advance(1);
+          }
+          continue
+        }
+      }
+
+      var text = (void 0), rest = (void 0), next = (void 0);
+      if (textEnd >= 0) {
+        rest = html.slice(textEnd);
+        while (
+          !endTag.test(rest) &&
+          !startTagOpen.test(rest) &&
+          !comment.test(rest) &&
+          !conditionalComment.test(rest)
+        ) {
+          // < in plain text, be forgiving and treat it as text
+          next = rest.indexOf('<', 1);
+          if (next < 0) { break }
+          textEnd += next;
+          rest = html.slice(textEnd);
+        }
+        text = html.substring(0, textEnd);
+      }
+
+      if (textEnd < 0) {
+        text = html;
+      }
+
+      if (text) {
+        advance(text.length);
+      }
+
+      if (options.chars && text) {
+        options.chars(text, index - text.length, index);
+      }
+    } else {
+      var endTagLength = 0;
+      var stackedTag = lastTag.toLowerCase();
+      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+      var rest$1 = html.replace(reStackedTag, function (all, text, endTag) {
+        endTagLength = endTag.length;
+        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+          text = text
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+        }
+        if (shouldIgnoreFirstNewline(stackedTag, text)) {
+          text = text.slice(1);
+        }
+        if (options.chars) {
+          options.chars(text);
+        }
+        return ''
+      });
+      index += html.length - rest$1.length;
+      html = rest$1;
+      parseEndTag(stackedTag, index - endTagLength, index);
+    }
+
+    if (html === last) {
+      options.chars && options.chars(html);
+      if (!stack.length && options.warn) {
+        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""), { start: index + html.length });
+      }
+      break
+    }
+  }
+
+  // Clean up any remaining tags
+  parseEndTag();
+
+  function advance (n) {
+    index += n;
+    html = html.substring(n);
+  }
+
+  function parseStartTag () {
+    var start = html.match(startTagOpen);
+    if (start) {
+      var match = {
+        tagName: start[1],
+        attrs: [],
+        start: index
+      };
+      advance(start[0].length);
+      var end, attr;
+      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        attr.start = index;
+        advance(attr[0].length);
+        attr.end = index;
+        match.attrs.push(attr);
+      }
+      if (end) {
+        match.unarySlash = end[1];
+        advance(end[0].length);
+        match.end = index;
+        return match
+      }
+    }
+  }
+
+  function handleStartTag (match) {
+    var tagName = match.tagName;
+    var unarySlash = match.unarySlash;
+
+    if (expectHTML) {
+      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+        parseEndTag(lastTag);
+      }
+      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+        parseEndTag(tagName);
+      }
+    }
+
+    var unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+    var l = match.attrs.length;
+    var attrs = new Array(l);
+    for (var i = 0; i < l; i++) {
+      var args = match.attrs[i];
+      var value = args[3] || args[4] || args[5] || '';
+      var shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
+      attrs[i] = {
+        name: args[1],
+        value: decodeAttr(value, shouldDecodeNewlines)
+      };
+      if (options.outputSourceRange) {
+        attrs[i].start = args.start + args[0].match(/^\s*/).length;
+        attrs[i].end = args.end;
+      }
+    }
+
+    if (!unary) {
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
+      lastTag = tagName;
+    }
+
+    if (options.start) {
+      options.start(tagName, attrs, unary, match.start, match.end);
+    }
+  }
+
+  function parseEndTag (tagName, start, end) {
+    var pos, lowerCasedTagName;
+    if (start == null) { start = index; }
+    if (end == null) { end = index; }
+
+    // Find the closest opened tag of the same type
+    if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
+      for (pos = stack.length - 1; pos >= 0; pos--) {
+        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+          break
+        }
+      }
+    } else {
+      // If no tag name is provided, clean shop
+      pos = 0;
+    }
+
+    if (pos >= 0) {
+      // Close all the open elements, up the stack
+      for (var i = stack.length - 1; i >= pos; i--) {
+        if (i > pos || !tagName &&
+          options.warn
+        ) {
+          options.warn(
+            ("tag <" + (stack[i].tag) + "> has no matching end tag."),
+            { start: stack[i].start }
+          );
+        }
+        if (options.end) {
+          options.end(stack[i].tag, start, end);
+        }
+      }
+
+      // Remove the open elements from the stack
+      stack.length = pos;
+      lastTag = pos && stack[pos - 1].tag;
+    } else if (lowerCasedTagName === 'br') {
+      if (options.start) {
+        options.start(tagName, [], true, start, end);
+      }
+    } else if (lowerCasedTagName === 'p') {
+      if (options.start) {
+        options.start(tagName, [], false, start, end);
+      }
+      if (options.end) {
+        options.end(tagName, start, end);
+      }
+    }
+  }
+}
+
+/*  */
+
+var onRE = /^@|^v-on:/;
+var dirRE = /^v-|^@|^:|^\./;
+var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
+var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+var stripParensRE = /^\(|\)$/g;
+var dynamicArgRE = /^\[.*\]$/;
+
+var argRE = /:(.*)$/;
+var bindRE = /^:|^\.|^v-bind:/;
+var propBindRE = /^\./;
+var modifierRE = /\.[^.]+/g;
+
+var slotRE = /^v-slot(:|$)|^#/;
+
+var lineBreakRE = /[\r\n]/;
+var whitespaceRE$1 = /\s+/g;
+
+var decodeHTMLCached = cached(he.decode);
+
+// configurable state
+var warn$2;
+var delimiters;
+var transforms;
+var preTransforms;
+var postTransforms;
+var platformIsPreTag;
+var platformMustUseProp;
+var platformGetTagNamespace;
+var maybeComponent;
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag: tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    rawAttrsMap: {},
+    parent: parent,
+    children: []
+  }
+}
+
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+  template,
+  options
+) {
+  warn$2 = options.warn || baseWarn;
+
+  platformIsPreTag = options.isPreTag || no;
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
+  var isReservedTag = options.isReservedTag || no;
+  maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
+
+  transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+  delimiters = options.delimiters;
+
+  var stack = [];
+  var preserveWhitespace = options.preserveWhitespace !== false;
+  var whitespaceOption = options.whitespace;
+  var root;
+  var currentParent;
+  var inVPre = false;
+  var inPre = false;
+  var warned = false;
+
+  function warnOnce (msg, range) {
+    if (!warned) {
+      warned = true;
+      warn$2(msg, range);
+    }
+  }
+
+  function closeElement (element) {
+    if (!inVPre && !element.processed) {
+      element = processElement(element, options);
+    }
+    // tree management
+    if (!stack.length && element !== root) {
+      // allow root elements with v-if, v-else-if and v-else
+      if (root.if && (element.elseif || element.else)) {
+        {
+          checkRootConstraints(element);
+        }
+        addIfCondition(root, {
+          exp: element.elseif,
+          block: element
+        });
+      } else {
+        warnOnce(
+          "Component template should contain exactly one root element. " +
+          "If you are using v-if on multiple elements, " +
+          "use v-else-if to chain them instead.",
+          { start: element.start }
+        );
+      }
+    }
+    if (currentParent && !element.forbidden) {
+      if (element.elseif || element.else) {
+        processIfConditions(element, currentParent);
+      } else if (element.slotScope) { // scoped slot
+        var name = element.slotTarget || '"default"'
+        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+      } else {
+        currentParent.children.push(element);
+        element.parent = currentParent;
+      }
+    }
+    // check pre state
+    if (element.pre) {
+      inVPre = false;
+    }
+    if (platformIsPreTag(element.tag)) {
+      inPre = false;
+    }
+    // apply post-transforms
+    for (var i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
+  }
+
+  function checkRootConstraints (el) {
+    if (el.tag === 'slot' || el.tag === 'template') {
+      warnOnce(
+        "Cannot use <" + (el.tag) + "> as component root element because it may " +
+        'contain multiple nodes.',
+        { start: el.start }
+      );
+    }
+    if (el.attrsMap.hasOwnProperty('v-for')) {
+      warnOnce(
+        'Cannot use v-for on stateful component root element because ' +
+        'it renders multiple elements.',
+        el.rawAttrsMap['v-for']
+      );
+    }
+  }
+
+  parseHTML(template, {
+    warn: warn$2,
+    expectHTML: options.expectHTML,
+    isUnaryTag: options.isUnaryTag,
+    canBeLeftOpenTag: options.canBeLeftOpenTag,
+    shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+    shouldKeepComment: options.comments,
+    outputSourceRange: options.outputSourceRange,
+    start: function start (tag, attrs, unary, start$1) {
+      // check namespace.
+      // inherit parent ns if there is one
+      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+      // handle IE svg bug
+      /* istanbul ignore if */
+      if (isIE && ns === 'svg') {
+        attrs = guardIESVGBug(attrs);
+      }
+
+      var element = createASTElement(tag, attrs, currentParent);
+      if (ns) {
+        element.ns = ns;
+      }
+
+      if (options.outputSourceRange) {
+        element.start = start$1;
+        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+          cumulated[attr.name] = attr;
+          return cumulated
+        }, {});
+      }
+
+      if (isForbiddenTag(element) && !isServerRendering()) {
+        element.forbidden = true;
+        warn$2(
+          'Templates should only be responsible for mapping the state to the ' +
+          'UI. Avoid placing tags with side-effects in your templates, such as ' +
+          "<" + tag + ">" + ', as they will not be parsed.',
+          { start: element.start }
+        );
+      }
+
+      // apply pre-transforms
+      for (var i = 0; i < preTransforms.length; i++) {
+        element = preTransforms[i](element, options) || element;
+      }
+
+      if (!inVPre) {
+        processPre(element);
+        if (element.pre) {
+          inVPre = true;
+        }
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = true;
+      }
+      if (inVPre) {
+        processRawAttrs(element);
+      } else if (!element.processed) {
+        // structural directives
+        processFor(element);
+        processIf(element);
+        processOnce(element);
+      }
+
+      if (!root) {
+        root = element;
+        {
+          checkRootConstraints(root);
+        }
+      }
+
+      if (!unary) {
+        currentParent = element;
+        stack.push(element);
+      } else {
+        closeElement(element);
+      }
+    },
+
+    end: function end (tag, start, end$1) {
+      var element = stack[stack.length - 1];
+      if (!inPre) {
+        // remove trailing whitespace node
+        var lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+          element.children.pop();
+        }
+      }
+      // pop stack
+      stack.length -= 1;
+      currentParent = stack[stack.length - 1];
+      if (options.outputSourceRange) {
+        element.end = end$1;
+      }
+      closeElement(element);
+    },
+
+    chars: function chars (text, start, end) {
+      if (!currentParent) {
+        {
+          if (text === template) {
+            warnOnce(
+              'Component template requires a root element, rather than just text.',
+              { start: start }
+            );
+          } else if ((text = text.trim())) {
+            warnOnce(
+              ("text \"" + text + "\" outside root element will be ignored."),
+              { start: start }
+            );
+          }
+        }
+        return
+      }
+      // IE textarea placeholder bug
+      /* istanbul ignore if */
+      if (isIE &&
+        currentParent.tag === 'textarea' &&
+        currentParent.attrsMap.placeholder === text
+      ) {
+        return
+      }
+      var children = currentParent.children;
+      if (inPre || text.trim()) {
+        text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+      } else if (!children.length) {
+        // remove the whitespace-only node right after an opening tag
+        text = '';
+      } else if (whitespaceOption) {
+        if (whitespaceOption === 'condense') {
+          // in condense mode, remove the whitespace node if it contains
+          // line break, otherwise condense to a single space
+          text = lineBreakRE.test(text) ? '' : ' ';
+        } else {
+          text = ' ';
+        }
+      } else {
+        text = preserveWhitespace ? ' ' : '';
+      }
+      if (text) {
+        if (whitespaceOption === 'condense') {
+          // condense consecutive whitespaces into single space
+          text = text.replace(whitespaceRE$1, ' ');
+        }
+        var res;
+        var child;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+          child = {
+            type: 2,
+            expression: res.expression,
+            tokens: res.tokens,
+            text: text
+          };
+        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+          child = {
+            type: 3,
+            text: text
+          };
+        }
+        if (child) {
+          if (options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          children.push(child);
+        }
+      }
+    },
+    comment: function comment (text, start, end) {
+      var child = {
+        type: 3,
+        text: text,
+        isComment: true
+      };
+      if (options.outputSourceRange) {
+        child.start = start;
+        child.end = end;
+      }
+      currentParent.children.push(child);
+    }
+  });
+  return root
+}
+
+function processPre (el) {
+  if (getAndRemoveAttr(el, 'v-pre') != null) {
+    el.pre = true;
+  }
+}
+
+function processRawAttrs (el) {
+  var list = el.attrsList;
+  var len = list.length;
+  if (len) {
+    var attrs = el.attrs = new Array(len);
+    for (var i = 0; i < len; i++) {
+      attrs[i] = {
+        name: list[i].name,
+        value: JSON.stringify(list[i].value)
+      };
+      if (list[i].start != null) {
+        attrs[i].start = list[i].start;
+        attrs[i].end = list[i].end;
+      }
+    }
+  } else if (!el.pre) {
+    // non root node in pre blocks with no attributes
+    el.plain = true;
+  }
+}
+
+function processElement (
+  element,
+  options
+) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = (
+    !element.key &&
+    !element.scopedSlots &&
+    !element.attrsList.length
+  );
+
+  processRef(element);
+  processSlotContent(element);
+  processSlotOutlet(element);
+  processComponent(element);
+  for (var i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+  return element
+}
+
+function processKey (el) {
+  var exp = getBindingAttr(el, 'key');
+  if (exp) {
+    {
+      if (el.tag === 'template') {
+        warn$2(
+          "<template> cannot be keyed. Place the key on real elements instead.",
+          getRawBindingAttr(el, 'key')
+        );
+      }
+      if (el.for) {
+        var iterator = el.iterator2 || el.iterator1;
+        var parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            "Do not use v-for index as key on <transition-group> children, " +
+            "this is the same as not using keys.",
+            getRawBindingAttr(el, 'key'),
+            true /* tip */
+          );
+        }
+      }
+    }
+    el.key = exp;
+  }
+}
+
+function processRef (el) {
+  var ref = getBindingAttr(el, 'ref');
+  if (ref) {
+    el.ref = ref;
+    el.refInFor = checkInFor(el);
+  }
+}
+
+function processFor (el) {
+  var exp;
+  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+    var res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else {
+      warn$2(
+        ("Invalid v-for expression: " + exp),
+        el.rawAttrsMap['v-for']
+      );
+    }
+  }
+}
+
+
+
+function parseFor (exp) {
+  var inMatch = exp.match(forAliasRE);
+  if (!inMatch) { return }
+  var res = {};
+  res.for = inMatch[2].trim();
+  var alias = inMatch[1].trim().replace(stripParensRE, '');
+  var iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '').trim();
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
+    }
+  } else {
+    res.alias = alias;
+  }
+  return res
+}
+
+function processIf (el) {
+  var exp = getAndRemoveAttr(el, 'v-if');
+  if (exp) {
+    el.if = exp;
+    addIfCondition(el, {
+      exp: exp,
+      block: el
+    });
+  } else {
+    if (getAndRemoveAttr(el, 'v-else') != null) {
+      el.else = true;
+    }
+    var elseif = getAndRemoveAttr(el, 'v-else-if');
+    if (elseif) {
+      el.elseif = elseif;
+    }
+  }
+}
+
+function processIfConditions (el, parent) {
+  var prev = findPrevElement(parent.children);
+  if (prev && prev.if) {
+    addIfCondition(prev, {
+      exp: el.elseif,
+      block: el
+    });
+  } else {
+    warn$2(
+      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
+      "used on element <" + (el.tag) + "> without corresponding v-if.",
+      el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
+    );
+  }
+}
+
+function findPrevElement (children) {
+  var i = children.length;
+  while (i--) {
+    if (children[i].type === 1) {
+      return children[i]
+    } else {
+      if (children[i].text !== ' ') {
+        warn$2(
+          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
+          "will be ignored.",
+          children[i]
+        );
+      }
+      children.pop();
+    }
+  }
+}
+
+function addIfCondition (el, condition) {
+  if (!el.ifConditions) {
+    el.ifConditions = [];
+  }
+  el.ifConditions.push(condition);
+}
+
+function processOnce (el) {
+  var once$$1 = getAndRemoveAttr(el, 'v-once');
+  if (once$$1 != null) {
+    el.once = true;
+  }
+}
+
+// handle content being passed to a component as slot,
+// e.g. <template slot="xxx">, <div slot-scope="xxx">
+function processSlotContent (el) {
+  var slotScope;
+  if (el.tag === 'template') {
+    slotScope = getAndRemoveAttr(el, 'scope');
+    /* istanbul ignore if */
+    if (slotScope) {
+      warn$2(
+        "the \"scope\" attribute for scoped slots have been deprecated and " +
+        "replaced by \"slot-scope\" since 2.5. The new \"slot-scope\" attribute " +
+        "can also be used on plain elements in addition to <template> to " +
+        "denote scoped slots.",
+        el.rawAttrsMap['scope'],
+        true
+      );
+    }
+    el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+  } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+    /* istanbul ignore if */
+    if (el.attrsMap['v-for']) {
+      warn$2(
+        "Ambiguous combined usage of slot-scope and v-for on <" + (el.tag) + "> " +
+        "(v-for takes higher priority). Use a wrapper <template> for the " +
+        "scoped slot to make it clearer.",
+        el.rawAttrsMap['slot-scope'],
+        true
+      );
+    }
+    el.slotScope = slotScope;
+  }
+
+  // slot="xxx"
+  var slotTarget = getBindingAttr(el, 'slot');
+  if (slotTarget) {
+    el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
+    // preserve slot as an attribute for native shadow DOM compat
+    // only for non-scoped slots.
+    if (el.tag !== 'template' && !el.slotScope) {
+      addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+    }
+  }
+
+  // 2.6 v-slot syntax
+  {
+    if (el.tag === 'template') {
+      // v-slot on <template>
+      var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding) {
+        {
+          if (el.slotTarget || el.slotScope) {
+            warn$2(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+        }
+        var ref = getSlotName(slotBinding);
+        var name = ref.name;
+        var dynamic = ref.dynamic;
+        el.slotTarget = name;
+        el.slotTargetDynamic = dynamic;
+        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+      }
+    } else {
+      // v-slot on component, denotes default slot
+      var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding$1) {
+        {
+          if (!maybeComponent(el)) {
+            warn$2(
+              "v-slot can only be used on components or <template>.",
+              slotBinding$1
+            );
+          }
+          if (el.slotScope || el.slotTarget) {
+            warn$2(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+          if (el.scopedSlots) {
+            warn$2(
+              "To avoid scope ambiguity, the default slot should also use " +
+              "<template> syntax when there are other named slots.",
+              slotBinding$1
+            );
+          }
+        }
+        // add the component's children to its default slot
+        var slots = el.scopedSlots || (el.scopedSlots = {});
+        var ref$1 = getSlotName(slotBinding$1);
+        var name$1 = ref$1.name;
+        var dynamic$1 = ref$1.dynamic;
+        var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTargetDynamic = dynamic$1;
+        slotContainer.children = el.children;
+        slotContainer.slotScope = slotBinding$1.value || "_";
+        // remove children as they are returned from scopedSlots now
+        el.children = [];
+        // mark el non-plain so data gets generated
+        el.plain = false;
+      }
+    }
+  }
+}
+
+function getSlotName (binding) {
+  var name = binding.name.replace(slotRE, '');
+  if (!name) {
+    if (binding.name[0] !== '#') {
+      name = 'default';
+    } else {
+      warn$2(
+        "v-slot shorthand syntax requires a slot name.",
+        binding
+      );
+    }
+  }
+  return dynamicArgRE.test(name)
+    // dynamic [name]
+    ? { name: name.slice(1, -1), dynamic: true }
+    // static name
+    : { name: ("\"" + name + "\""), dynamic: false }
+}
+
+// handle <slot/> outlets
+function processSlotOutlet (el) {
+  if (el.tag === 'slot') {
+    el.slotName = getBindingAttr(el, 'name');
+    if (el.key) {
+      warn$2(
+        "`key` does not work on <slot> because slots are abstract outlets " +
+        "and can possibly expand into multiple elements. " +
+        "Use the key on a wrapping element instead.",
+        getRawBindingAttr(el, 'key')
+      );
+    }
+  }
+}
+
+function processComponent (el) {
+  var binding;
+  if ((binding = getBindingAttr(el, 'is'))) {
+    el.component = binding;
+  }
+  if (getAndRemoveAttr(el, 'inline-template') != null) {
+    el.inlineTemplate = true;
+  }
+}
+
+function processAttrs (el) {
+  var list = el.attrsList;
+  var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
+  for (i = 0, l = list.length; i < l; i++) {
+    name = rawName = list[i].name;
+    value = list[i].value;
+    if (dirRE.test(name)) {
+      // mark element as dynamic
+      el.hasBindings = true;
+      // modifiers
+      modifiers = parseModifiers(name.replace(dirRE, ''));
+      // support .foo shorthand syntax for the .prop modifier
+      if (propBindRE.test(name)) {
+        (modifiers || (modifiers = {})).prop = true;
+        name = "." + name.slice(1).replace(modifierRE, '');
+      } else if (modifiers) {
+        name = name.replace(modifierRE, '');
+      }
+      if (bindRE.test(name)) { // v-bind
+        name = name.replace(bindRE, '');
+        value = parseFilters(value);
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
+        if (
+          value.trim().length === 0
+        ) {
+          warn$2(
+            ("The value for a v-bind expression cannot be empty. Found in \"v-bind:" + name + "\"")
+          );
+        }
+        if (modifiers) {
+          if (modifiers.prop && !isDynamic) {
+            name = camelize(name);
+            if (name === 'innerHtml') { name = 'innerHTML'; }
+          }
+          if (modifiers.camel && !isDynamic) {
+            name = camelize(name);
+          }
+          if (modifiers.sync) {
+            syncGen = genAssignmentCode(value, "$event");
+            if (!isDynamic) {
+              addHandler(
+                el,
+                ("update:" + (camelize(name))),
+                syncGen,
+                null,
+                false,
+                warn$2,
+                list[i]
+              );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  ("update:" + (hyphenate(name))),
+                  syncGen,
+                  null,
+                  false,
+                  warn$2,
+                  list[i]
+                );
+              }
+            } else {
+              // handler w/ dynamic event name
+              addHandler(
+                el,
+                ("\"update:\"+(" + name + ")"),
+                syncGen,
+                null,
+                false,
+                warn$2,
+                list[i],
+                true // dynamic
+              );
+            }
+          }
+        }
+        if ((modifiers && modifiers.prop) || (
+          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+        )) {
+          addProp(el, name, value, list[i], isDynamic);
+        } else {
+          addAttr(el, name, value, list[i], isDynamic);
+        }
+      } else if (onRE.test(name)) { // v-on
+        name = name.replace(onRE, '');
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
+        addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
+      } else { // normal directives
+        name = name.replace(dirRE, '');
+        // parse arg
+        var argMatch = name.match(argRE);
+        var arg = argMatch && argMatch[1];
+        isDynamic = false;
+        if (arg) {
+          name = name.slice(0, -(arg.length + 1));
+          if (dynamicArgRE.test(arg)) {
+            arg = arg.slice(1, -1);
+            isDynamic = true;
+          }
+        }
+        addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
+        if (name === 'model') {
+          checkForAliasModel(el, value);
+        }
+      }
+    } else {
+      // literal attribute
+      {
+        var res = parseText(value, delimiters);
+        if (res) {
+          warn$2(
+            name + "=\"" + value + "\": " +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div id="{{ val }}">, use <div :id="val">.',
+            list[i]
+          );
+        }
+      }
+      addAttr(el, name, JSON.stringify(value), list[i]);
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true', list[i]);
+      }
+    }
+  }
+}
+
+function checkInFor (el) {
+  var parent = el;
+  while (parent) {
+    if (parent.for !== undefined) {
+      return true
+    }
+    parent = parent.parent;
+  }
+  return false
+}
+
+function parseModifiers (name) {
+  var match = name.match(modifierRE);
+  if (match) {
+    var ret = {};
+    match.forEach(function (m) { ret[m.slice(1)] = true; });
+    return ret
+  }
+}
+
+function makeAttrsMap (attrs) {
+  var map = {};
+  for (var i = 0, l = attrs.length; i < l; i++) {
+    if (
+      map[attrs[i].name] && !isIE && !isEdge
+    ) {
+      warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
+    }
+    map[attrs[i].name] = attrs[i].value;
+  }
+  return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+  return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+  return (
+    el.tag === 'style' ||
+    (el.tag === 'script' && (
+      !el.attrsMap.type ||
+      el.attrsMap.type === 'text/javascript'
+    ))
+  )
+}
+
+var ieNSBug = /^xmlns:NS\d+/;
+var ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+  var res = [];
+  for (var i = 0; i < attrs.length; i++) {
+    var attr = attrs[i];
+    if (!ieNSBug.test(attr.name)) {
+      attr.name = attr.name.replace(ieNSPrefix, '');
+      res.push(attr);
+    }
+  }
+  return res
+}
+
+function checkForAliasModel (el, value) {
+  var _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$2(
+        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
+        "You are binding v-model directly to a v-for iteration alias. " +
+        "This will not be able to modify the v-for source array because " +
+        "writing to the alias is like modifying a function local variable. " +
+        "Consider using an array of objects and use v-model on an object property instead.",
+        el.rawAttrsMap['v-model']
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    var map = el.attrsMap;
+    if (!map['v-model']) {
+      return
+    }
+
+    var typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!map.type && !typeBinding && map['v-bind']) {
+      typeBinding = "(" + (map['v-bind']) + ").type";
+    }
+
+    if (typeBinding) {
+      var ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      var ifConditionExtra = ifCondition ? ("&&(" + ifCondition + ")") : "";
+      var hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      var elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+      // 1. checkbox
+      var branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = "(" + typeBinding + ")==='checkbox'" + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      var branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: "(" + typeBinding + ")==='radio'" + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      var branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+var model$1 = {
+  preTransformNode: preTransformNode
+};
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$1
+];
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"), dir);
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"), dir);
+  }
+}
+
+var directives$1 = {
+  model: model,
+  text: text,
+  html: html
+};
+
+/*  */
+
+var baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag: isPreTag,
+  isUnaryTag: isUnaryTag,
+  mustUseProp: mustUseProp,
+  canBeLeftOpenTag: canBeLeftOpenTag,
+  isReservedTag: isReservedTag,
+  getTagNamespace: getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
+var isStaticKey;
+var isPlatformReservedTag;
+
+var genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ *    create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+  if (!root) { return }
+  isStaticKey = genStaticKeysCached(options.staticKeys || '');
+  isPlatformReservedTag = options.isReservedTag || no;
+  // first pass: mark all non-static nodes.
+  markStatic$1(root);
+  // second pass: mark static roots.
+  markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+  return makeMap(
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
+    (keys ? ',' + keys : '')
+  )
+}
+
+function markStatic$1 (node) {
+  node.static = isStatic(node);
+  if (node.type === 1) {
+    // do not make component slot content static. this avoids
+    // 1. components not able to mutate slot nodes
+    // 2. static slot content fails for hot-reloading
+    if (
+      !isPlatformReservedTag(node.tag) &&
+      node.tag !== 'slot' &&
+      node.attrsMap['inline-template'] == null
+    ) {
+      return
+    }
+    for (var i = 0, l = node.children.length; i < l; i++) {
+      var child = node.children[i];
+      markStatic$1(child);
+      if (!child.static) {
+        node.static = false;
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        var block = node.ifConditions[i$1].block;
+        markStatic$1(block);
+        if (!block.static) {
+          node.static = false;
+        }
+      }
+    }
+  }
+}
+
+function markStaticRoots (node, isInFor) {
+  if (node.type === 1) {
+    if (node.static || node.once) {
+      node.staticInFor = isInFor;
+    }
+    // For a node to qualify as a static root, it should have children that
+    // are not just static text. Otherwise the cost of hoisting out will
+    // outweigh the benefits and it's better off to just always render it fresh.
+    if (node.static && node.children.length && !(
+      node.children.length === 1 &&
+      node.children[0].type === 3
+    )) {
+      node.staticRoot = true;
+      return
+    } else {
+      node.staticRoot = false;
+    }
+    if (node.children) {
+      for (var i = 0, l = node.children.length; i < l; i++) {
+        markStaticRoots(node.children[i], isInFor || !!node.for);
+      }
+    }
+    if (node.ifConditions) {
+      for (var i$1 = 1, l$1 = node.ifConditions.length; i$1 < l$1; i$1++) {
+        markStaticRoots(node.ifConditions[i$1].block, isInFor);
+      }
+    }
+  }
+}
+
+function isStatic (node) {
+  if (node.type === 2) { // expression
+    return false
+  }
+  if (node.type === 3) { // text
+    return true
+  }
+  return !!(node.pre || (
+    !node.hasBindings && // no dynamic bindings
+    !node.if && !node.for && // not v-if or v-for or v-else
+    !isBuiltInTag(node.tag) && // not a built-in
+    isPlatformReservedTag(node.tag) && // not a component
+    !isDirectChildOfTemplateFor(node) &&
+    Object.keys(node).every(isStaticKey)
+  ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+  while (node.parent) {
+    node = node.parent;
+    if (node.tag !== 'template') {
+      return false
+    }
+    if (node.for) {
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnInvokeRE = /\([^)]*?\);*$/;
+var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
+
+// KeyboardEvent.keyCode aliases
+var keyCodes = {
+  esc: 27,
+  tab: 9,
+  enter: 13,
+  space: 32,
+  up: 38,
+  left: 37,
+  right: 39,
+  down: 40,
+  'delete': [8, 46]
+};
+
+// KeyboardEvent.key aliases
+var keyNames = {
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
+  tab: 'Tab',
+  enter: 'Enter',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };
+
+var modifierCode = {
+  stop: '$event.stopPropagation();',
+  prevent: '$event.preventDefault();',
+  self: genGuard("$event.target !== $event.currentTarget"),
+  ctrl: genGuard("!$event.ctrlKey"),
+  shift: genGuard("!$event.shiftKey"),
+  alt: genGuard("!$event.altKey"),
+  meta: genGuard("!$event.metaKey"),
+  left: genGuard("'button' in $event && $event.button !== 0"),
+  middle: genGuard("'button' in $event && $event.button !== 1"),
+  right: genGuard("'button' in $event && $event.button !== 2")
+};
+
+function genHandlers (
+  events,
+  isNative
+) {
+  var prefix = isNative ? 'nativeOn:' : 'on:';
+  var staticHandlers = "";
+  var dynamicHandlers = "";
+  for (var name in events) {
+    var handlerCode = genHandler(events[name]);
+    if (events[name] && events[name].dynamic) {
+      dynamicHandlers += name + "," + handlerCode + ",";
+    } else {
+      staticHandlers += "\"" + name + "\":" + handlerCode + ",";
+    }
+  }
+  staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
+  if (dynamicHandlers) {
+    return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
+  } else {
+    return prefix + staticHandlers
+  }
+}
+
+function genHandler (handler) {
+  if (!handler) {
+    return 'function(){}'
+  }
+
+  if (Array.isArray(handler)) {
+    return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
+  }
+
+  var isMethodPath = simplePathRE.test(handler.value);
+  var isFunctionExpression = fnExpRE.test(handler.value);
+  var isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
+
+  if (!handler.modifiers) {
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    return ("function($event){" + (isFunctionInvocation ? ("return " + (handler.value)) : handler.value) + "}") // inline statement
+  } else {
+    var code = '';
+    var genModifierCode = '';
+    var keys = [];
+    for (var key in handler.modifiers) {
+      if (modifierCode[key]) {
+        genModifierCode += modifierCode[key];
+        // left/right
+        if (keyCodes[key]) {
+          keys.push(key);
+        }
+      } else if (key === 'exact') {
+        var modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(function (keyModifier) { return !modifiers[keyModifier]; })
+            .map(function (keyModifier) { return ("$event." + keyModifier + "Key"); })
+            .join('||')
+        );
+      } else {
+        keys.push(key);
+      }
+    }
+    if (keys.length) {
+      code += genKeyFilter(keys);
+    }
+    // Make sure modifiers like prevent and stop get executed after key filtering
+    if (genModifierCode) {
+      code += genModifierCode;
+    }
+    var handlerCode = isMethodPath
+      ? ("return " + (handler.value) + "($event)")
+      : isFunctionExpression
+        ? ("return (" + (handler.value) + ")($event)")
+        : isFunctionInvocation
+          ? ("return " + (handler.value))
+          : handler.value;
+    return ("function($event){" + code + handlerCode + "}")
+  }
+}
+
+function genKeyFilter (keys) {
+  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+}
+
+function genFilterCode (key) {
+  var keyVal = parseInt(key, 10);
+  if (keyVal) {
+    return ("$event.keyCode!==" + keyVal)
+  }
+  var keyCode = keyCodes[key];
+  var keyName = keyNames[key];
+  return (
+    "_k($event.keyCode," +
+    (JSON.stringify(key)) + "," +
+    (JSON.stringify(keyCode)) + "," +
+    "$event.key," +
+    "" + (JSON.stringify(keyName)) +
+    ")"
+  )
+}
+
+/*  */
+
+function on (el, dir) {
+  if (dir.modifiers) {
+    warn("v-on without argument does not support modifiers.");
+  }
+  el.wrapListeners = function (code) { return ("_g(" + code + "," + (dir.value) + ")"); };
+}
+
+/*  */
+
+function bind$1 (el, dir) {
+  el.wrapData = function (code) {
+    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + "," + (dir.modifiers && dir.modifiers.prop ? 'true' : 'false') + (dir.modifiers && dir.modifiers.sync ? ',true' : '') + ")")
+  };
+}
+
+/*  */
+
+var baseDirectives = {
+  on: on,
+  bind: bind$1,
+  cloak: noop
+};
+
+/*  */
+
+
+
+
+
+var CodegenState = function CodegenState (options) {
+  this.options = options;
+  this.warn = options.warn || baseWarn;
+  this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+  this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+  this.directives = extend(extend({}, baseDirectives), options.directives);
+  var isReservedTag = options.isReservedTag || no;
+  this.maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
+  this.onceId = 0;
+  this.staticRenderFns = [];
+  this.pre = false;
+};
+
+
+
+function generate (
+  ast,
+  options
+) {
+  var state = new CodegenState(options);
+  var code = ast ? genElement(ast, state) : '_c("div")';
+  return {
+    render: ("with(this){return " + code + "}"),
+    staticRenderFns: state.staticRenderFns
+  }
+}
+
+function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
+  if (el.staticRoot && !el.staticProcessed) {
+    return genStatic(el, state)
+  } else if (el.once && !el.onceProcessed) {
+    return genOnce(el, state)
+  } else if (el.for && !el.forProcessed) {
+    return genFor(el, state)
+  } else if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
+    return genChildren(el, state) || 'void 0'
+  } else if (el.tag === 'slot') {
+    return genSlot(el, state)
+  } else {
+    // component or element
+    var code;
+    if (el.component) {
+      code = genComponent(el.component, el, state);
+    } else {
+      var data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
+
+      var children = el.inlineTemplate ? null : genChildren(el, state, true);
+      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
+    }
+    // module transforms
+    for (var i = 0; i < state.transforms.length; i++) {
+      code = state.transforms[i](el, code);
+    }
+    return code
+  }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state) {
+  el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  var originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
+  state.staticRenderFns.push(("with(this){return " + (genElement(el, state)) + "}"));
+  state.pre = originalPreState;
+  return ("_m(" + (state.staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
+}
+
+// v-once
+function genOnce (el, state) {
+  el.onceProcessed = true;
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.staticInFor) {
+    var key = '';
+    var parent = el.parent;
+    while (parent) {
+      if (parent.for) {
+        key = parent.key;
+        break
+      }
+      parent = parent.parent;
+    }
+    if (!key) {
+      state.warn(
+        "v-once can only be used inside v-for that is keyed. ",
+        el.rawAttrsMap['v-once']
+      );
+      return genElement(el, state)
+    }
+    return ("_o(" + (genElement(el, state)) + "," + (state.onceId++) + "," + key + ")")
+  } else {
+    return genStatic(el, state)
+  }
+}
+
+function genIf (
+  el,
+  state,
+  altGen,
+  altEmpty
+) {
+  el.ifProcessed = true; // avoid recursion
+  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+  conditions,
+  state,
+  altGen,
+  altEmpty
+) {
+  if (!conditions.length) {
+    return altEmpty || '_e()'
+  }
+
+  var condition = conditions.shift();
+  if (condition.exp) {
+    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions, state, altGen, altEmpty)))
+  } else {
+    return ("" + (genTernaryExp(condition.block)))
+  }
+
+  // v-if with v-once should generate code like (a)?_m(0):_m(1)
+  function genTernaryExp (el) {
+    return altGen
+      ? altGen(el, state)
+      : el.once
+        ? genOnce(el, state)
+        : genElement(el, state)
+  }
+}
+
+function genFor (
+  el,
+  state,
+  altGen,
+  altHelper
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+
+  if (state.maybeComponent(el) &&
+    el.tag !== 'slot' &&
+    el.tag !== 'template' &&
+    !el.key
+  ) {
+    state.warn(
+      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
+      "v-for should have explicit keys. " +
+      "See https://vuejs.org/guide/list.html#key for more info.",
+      el.rawAttrsMap['v-for'],
+      true /* tip */
+    );
+  }
+
+  el.forProcessed = true; // avoid recursion
+  return (altHelper || '_l') + "((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + ((altGen || genElement)(el, state)) +
+    '})'
+}
+
+function genData$2 (el, state) {
+  var data = '{';
+
+  // directives first.
+  // directives may mutate the el's other properties before they are generated.
+  var dirs = genDirectives(el, state);
+  if (dirs) { data += dirs + ','; }
+
+  // key
+  if (el.key) {
+    data += "key:" + (el.key) + ",";
+  }
+  // ref
+  if (el.ref) {
+    data += "ref:" + (el.ref) + ",";
+  }
+  if (el.refInFor) {
+    data += "refInFor:true,";
+  }
+  // pre
+  if (el.pre) {
+    data += "pre:true,";
+  }
+  // record original tag name for components using "is" attribute
+  if (el.component) {
+    data += "tag:\"" + (el.tag) + "\",";
+  }
+  // module data generation functions
+  for (var i = 0; i < state.dataGenFns.length; i++) {
+    data += state.dataGenFns[i](el);
+  }
+  // attributes
+  if (el.attrs) {
+    data += "attrs:" + (genProps(el.attrs)) + ",";
+  }
+  // DOM props
+  if (el.props) {
+    data += "domProps:" + (genProps(el.props)) + ",";
+  }
+  // event handlers
+  if (el.events) {
+    data += (genHandlers(el.events, false)) + ",";
+  }
+  if (el.nativeEvents) {
+    data += (genHandlers(el.nativeEvents, true)) + ",";
+  }
+  // slot target
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
+    data += "slot:" + (el.slotTarget) + ",";
+  }
+  // scoped slots
+  if (el.scopedSlots) {
+    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+  }
+  // component v-model
+  if (el.model) {
+    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + ",expression:" + (el.model.expression) + "},";
+  }
+  // inline-template
+  if (el.inlineTemplate) {
+    var inlineTemplate = genInlineTemplate(el, state);
+    if (inlineTemplate) {
+      data += inlineTemplate + ",";
+    }
+  }
+  data = data.replace(/,$/, '') + '}';
+  // v-bind dynamic argument wrap
+  // v-bind with dynamic arguments must be applied using the same v-bind object
+  // merge helper so that class/style/mustUseProp attrs are handled correctly.
+  if (el.dynamicAttrs) {
+    data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
+  }
+  // v-bind data wrap
+  if (el.wrapData) {
+    data = el.wrapData(data);
+  }
+  // v-on data wrap
+  if (el.wrapListeners) {
+    data = el.wrapListeners(data);
+  }
+  return data
+}
+
+function genDirectives (el, state) {
+  var dirs = el.directives;
+  if (!dirs) { return }
+  var res = 'directives:[';
+  var hasRuntime = false;
+  var i, l, dir, needRuntime;
+  for (i = 0, l = dirs.length; i < l; i++) {
+    dir = dirs[i];
+    needRuntime = true;
+    var gen = state.directives[dir.name];
+    if (gen) {
+      // compile-time directive that manipulates AST.
+      // returns true if it also needs a runtime counterpart.
+      needRuntime = !!gen(el, dir, state.warn);
+    }
+    if (needRuntime) {
+      hasRuntime = true;
+      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+    }
+  }
+  if (hasRuntime) {
+    return res.slice(0, -1) + ']'
+  }
+}
+
+function genInlineTemplate (el, state) {
+  var ast = el.children[0];
+  if (el.children.length !== 1 || ast.type !== 1) {
+    state.warn(
+      'Inline-template components must have exactly one child element.',
+      { start: el.start }
+    );
+  }
+  if (ast.type === 1) {
+    var inlineRenderFns = generate(ast, state.options);
+    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
+  }
+}
+
+function genScopedSlots (
+  slots,
+  state
+) {
+  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
+      return genScopedSlot(key, slots[key], state)
+    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+}
+
+function genScopedSlot (
+  key,
+  el,
+  state
+) {
+  if (el.for && !el.forProcessed) {
+    return genForScopedSlot(key, el, state)
+  }
+  var fn = "function(" + (String(el.slotScope)) + "){" +
+    "return " + (el.tag === 'template'
+      ? el.if
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)) + "}";
+  return ("{key:" + key + ",fn:" + fn + "}")
+}
+
+function genForScopedSlot (
+  key,
+  el,
+  state
+) {
+  var exp = el.for;
+  var alias = el.alias;
+  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
+  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
+  el.forProcessed = true; // avoid recursion
+  return "_l((" + exp + ")," +
+    "function(" + alias + iterator1 + iterator2 + "){" +
+      "return " + (genScopedSlot(key, el, state)) +
+    '})'
+}
+
+function genChildren (
+  el,
+  state,
+  checkSkip,
+  altGenElement,
+  altGenNode
+) {
+  var children = el.children;
+  if (children.length) {
+    var el$1 = children[0];
+    // optimize single v-for
+    if (children.length === 1 &&
+      el$1.for &&
+      el$1.tag !== 'template' &&
+      el$1.tag !== 'slot'
+    ) {
+      var normalizationType = checkSkip
+        ? state.maybeComponent(el$1) ? ",1" : ",0"
+        : "";
+      return ("" + ((altGenElement || genElement)(el$1, state)) + normalizationType)
+    }
+    var normalizationType$1 = checkSkip
+      ? getNormalizationType(children, state.maybeComponent)
+      : 0;
+    var gen = altGenNode || genNode;
+    return ("[" + (children.map(function (c) { return gen(c, state); }).join(',')) + "]" + (normalizationType$1 ? ("," + normalizationType$1) : ''))
+  }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+  children,
+  maybeComponent
+) {
+  var res = 0;
+  for (var i = 0; i < children.length; i++) {
+    var el = children[i];
+    if (el.type !== 1) {
+      continue
+    }
+    if (needsNormalization(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
+      res = 2;
+      break
+    }
+    if (maybeComponent(el) ||
+        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
+      res = 1;
+    }
+  }
+  return res
+}
+
+function needsNormalization (el) {
+  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+  if (node.type === 1) {
+    return genElement(node, state)
+  } else if (node.type === 3 && node.isComment) {
+    return genComment(node)
+  } else {
+    return genText(node)
+  }
+}
+
+function genText (text) {
+  return ("_v(" + (text.type === 2
+    ? text.expression // no need for () because already wrapped in _s()
+    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
+}
+
+function genComment (comment) {
+  return ("_e(" + (JSON.stringify(comment.text)) + ")")
+}
+
+function genSlot (el, state) {
+  var slotName = el.slotName || '"default"';
+  var children = genChildren(el, state);
+  var res = "_t(" + slotName + (children ? ("," + children) : '');
+  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var bind$$1 = el.attrsMap['v-bind'];
+  if ((attrs || bind$$1) && !children) {
+    res += ",null";
+  }
+  if (attrs) {
+    res += "," + attrs;
+  }
+  if (bind$$1) {
+    res += (attrs ? '' : ',null') + "," + bind$$1;
+  }
+  return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+  componentName,
+  el,
+  state
+) {
+  var children = el.inlineTemplate ? null : genChildren(el, state, true);
+  return ("_c(" + componentName + "," + (genData$2(el, state)) + (children ? ("," + children) : '') + ")")
+}
+
+function genProps (props) {
+  var staticProps = "";
+  var dynamicProps = "";
+  for (var i = 0; i < props.length; i++) {
+    var prop = props[i];
+    var value = transformSpecialNewlines(prop.value);
+    if (prop.dynamic) {
+      dynamicProps += (prop.name) + "," + value + ",";
+    } else {
+      staticProps += "\"" + (prop.name) + "\":" + value + ",";
+    }
+  }
+  staticProps = "{" + (staticProps.slice(0, -1)) + "}";
+  if (dynamicProps) {
+    return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
+  } else {
+    return staticProps
+  }
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+  return text
+    .replace(/\u2028/g, '\\u2028')
+    .replace(/\u2029/g, '\\u2029')
+}
+
+/*  */
+
+
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+var prohibitedKeywordRE = new RegExp('\\b' + (
+  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+  'super,throw,while,yield,delete,export,import,return,switch,default,' +
+  'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+var unaryOperatorsRE = new RegExp('\\b' + (
+  'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// strip strings in expressions
+var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast, warn) {
+  if (ast) {
+    checkNode(ast, warn);
+  }
+}
+
+function checkNode (node, warn) {
+  if (node.type === 1) {
+    for (var name in node.attrsMap) {
+      if (dirRE.test(name)) {
+        var value = node.attrsMap[name];
+        if (value) {
+          var range = node.rawAttrsMap[name];
+          if (name === 'v-for') {
+            checkFor(node, ("v-for=\"" + value + "\""), warn, range);
+          } else if (onRE.test(name)) {
+            checkEvent(value, (name + "=\"" + value + "\""), warn, range);
+          } else {
+            checkExpression(value, (name + "=\"" + value + "\""), warn, range);
+          }
+        }
+      }
+    }
+    if (node.children) {
+      for (var i = 0; i < node.children.length; i++) {
+        checkNode(node.children[i], warn);
+      }
+    }
+  } else if (node.type === 2) {
+    checkExpression(node.expression, node.text, warn, node);
+  }
+}
+
+function checkEvent (exp, text, warn, range) {
+  var stipped = exp.replace(stripStringRE, '');
+  var keywordMatch = stipped.match(unaryOperatorsRE);
+  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    warn(
+      "avoid using JavaScript unary operator as property name: " +
+      "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim()),
+      range
+    );
+  }
+  checkExpression(exp, text, warn, range);
+}
+
+function checkFor (node, text, warn, range) {
+  checkExpression(node.for || '', text, warn, range);
+  checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
+}
+
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  warn,
+  range
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(("var " + ident + "=_"));
+    } catch (e) {
+      warn(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())), range);
+    }
+  }
+}
+
+function checkExpression (exp, text, warn, range) {
+  try {
+    new Function(("return " + exp));
+  } catch (e) {
+    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+    if (keywordMatch) {
+      warn(
+        "avoid using JavaScript keyword as property name: " +
+        "\"" + (keywordMatch[0]) + "\"\n  Raw expression: " + (text.trim()),
+        range
+      );
+    } else {
+      warn(
+        "invalid expression: " + (e.message) + " in\n\n" +
+        "    " + exp + "\n\n" +
+        "  Raw expression: " + (text.trim()) + "\n",
+        range
+      );
+    }
+  }
+}
+
+/*  */
+
+var range = 2;
+
+function generateCodeFrame (
+  source,
+  start,
+  end
+) {
+  if ( start === void 0 ) start = 0;
+  if ( end === void 0 ) end = source.length;
+
+  var lines = source.split(/\r?\n/);
+  var count = 0;
+  var res = [];
+  for (var i = 0; i < lines.length; i++) {
+    count += lines[i].length + 1;
+    if (count >= start) {
+      for (var j = i - range; j <= i + range || end > count; j++) {
+        if (j < 0 || j >= lines.length) { continue }
+        res.push(("" + (j + 1) + (repeat$1(" ", 3 - String(j + 1).length)) + "|  " + (lines[j])));
+        var lineLength = lines[j].length;
+        if (j === i) {
+          // push underline
+          var pad = start - (count - lineLength) + 1;
+          var length = end > count ? lineLength - pad : end - start;
+          res.push("   |  " + repeat$1(" ", pad) + repeat$1("^", length));
+        } else if (j > i) {
+          if (end > count) {
+            var length$1 = Math.min(end - count, lineLength);
+            res.push("   |  " + repeat$1("^", length$1));
+          }
+          count += lineLength + 1;
+        }
+      }
+      break
+    }
+  }
+  return res.join('\n')
+}
+
+function repeat$1 (str, n) {
+  var result = '';
+  while (true) { // eslint-disable-line
+    if (n & 1) { result += str; }
+    n >>>= 1;
+    if (n <= 0) { break }
+    str += str;
+  }
+  return result
+}
+
+/*  */
+
+
+
+function createFunction (code, errors) {
+  try {
+    return new Function(code)
+  } catch (err) {
+    errors.push({ err: err, code: code });
+    return noop
+  }
+}
+
+function createCompileToFunctionFn (compile) {
+  var cache = Object.create(null);
+
+  return function compileToFunctions (
+    template,
+    options,
+    vm
+  ) {
+    options = extend({}, options);
+    var warn$$1 = options.warn || warn;
+    delete options.warn;
+
+    /* istanbul ignore if */
+    {
+      // detect possible CSP restriction
+      try {
+        new Function('return 1');
+      } catch (e) {
+        if (e.toString().match(/unsafe-eval|CSP/)) {
+          warn$$1(
+            'It seems you are using the standalone build of Vue.js in an ' +
+            'environment with Content Security Policy that prohibits unsafe-eval. ' +
+            'The template compiler cannot work in this environment. Consider ' +
+            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+            'templates into render functions.'
+          );
+        }
+      }
+    }
+
+    // check cache
+    var key = options.delimiters
+      ? String(options.delimiters) + template
+      : template;
+    if (cache[key]) {
+      return cache[key]
+    }
+
+    // compile
+    var compiled = compile(template, options);
+
+    // check compilation errors/tips
+    {
+      if (compiled.errors && compiled.errors.length) {
+        if (options.outputSourceRange) {
+          compiled.errors.forEach(function (e) {
+            warn$$1(
+              "Error compiling template:\n\n" + (e.msg) + "\n\n" +
+              generateCodeFrame(template, e.start, e.end),
+              vm
+            );
+          });
+        } else {
+          warn$$1(
+            "Error compiling template:\n\n" + template + "\n\n" +
+            compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
+            vm
+          );
+        }
+      }
+      if (compiled.tips && compiled.tips.length) {
+        if (options.outputSourceRange) {
+          compiled.tips.forEach(function (e) { return tip(e.msg, vm); });
+        } else {
+          compiled.tips.forEach(function (msg) { return tip(msg, vm); });
+        }
+      }
+    }
+
+    // turn code into functions
+    var res = {};
+    var fnGenErrors = [];
+    res.render = createFunction(compiled.render, fnGenErrors);
+    res.staticRenderFns = compiled.staticRenderFns.map(function (code) {
+      return createFunction(code, fnGenErrors)
+    });
+
+    // check function generation errors.
+    // this should only happen if there is a bug in the compiler itself.
+    // mostly for codegen development use
+    /* istanbul ignore if */
+    {
+      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+        warn$$1(
+          "Failed to generate render function:\n\n" +
+          fnGenErrors.map(function (ref) {
+            var err = ref.err;
+            var code = ref.code;
+
+            return ((err.toString()) + " in\n\n" + code + "\n");
+        }).join('\n'),
+          vm
+        );
+      }
+    }
+
+    return (cache[key] = res)
+  }
+}
+
+/*  */
+
+function createCompilerCreator (baseCompile) {
+  return function createCompiler (baseOptions) {
+    function compile (
+      template,
+      options
+    ) {
+      var finalOptions = Object.create(baseOptions);
+      var errors = [];
+      var tips = [];
+
+      var warn = function (msg, range, tip) {
+        (tip ? tips : errors).push(msg);
+      };
+
+      if (options) {
+        if (options.outputSourceRange) {
+          // $flow-disable-line
+          var leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+          warn = function (msg, range, tip) {
+            var data = { msg: msg };
+            if (range) {
+              if (range.start != null) {
+                data.start = range.start + leadingSpaceLength;
+              }
+              if (range.end != null) {
+                data.end = range.end + leadingSpaceLength;
+              }
+            }
+            (tip ? tips : errors).push(data);
+          };
+        }
+        // merge custom modules
+        if (options.modules) {
+          finalOptions.modules =
+            (baseOptions.modules || []).concat(options.modules);
+        }
+        // merge custom directives
+        if (options.directives) {
+          finalOptions.directives = extend(
+            Object.create(baseOptions.directives || null),
+            options.directives
+          );
+        }
+        // copy other options
+        for (var key in options) {
+          if (key !== 'modules' && key !== 'directives') {
+            finalOptions[key] = options[key];
+          }
+        }
+      }
+
+      finalOptions.warn = warn;
+
+      var compiled = baseCompile(template.trim(), finalOptions);
+      {
+        detectErrors(compiled.ast, warn);
+      }
+      compiled.errors = errors;
+      compiled.tips = tips;
+      return compiled
+    }
+
+    return {
+      compile: compile,
+      compileToFunctions: createCompileToFunctionFn(compile)
+    }
+  }
+}
+
+/*  */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+var createCompiler = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  var ast = parse(template.trim(), options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
+  var code = generate(ast, options);
+  return {
+    ast: ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
+var ref$1 = createCompiler(baseOptions);
+var compile = ref$1.compile;
+var compileToFunctions = ref$1.compileToFunctions;
+
+/*  */
+
+// check whether current browser encodes a char inside attribute values
+var div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? "<a href=\"\n\"/>" : "<div a=\"\n\"/>";
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+var shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+var shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
+var idToTemplate = cached(function (id) {
+  var el = query(id);
+  return el && el.innerHTML
+});
+
+var mount = Vue.prototype.$mount;
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && query(el);
+
+  /* istanbul ignore if */
+  if (el === document.body || el === document.documentElement) {
+    warn(
+      "Do not mount Vue to <html> or <body> - mount to normal elements instead."
+    );
+    return this
+  }
+
+  var options = this.$options;
+  // resolve template/el and convert to render function
+  if (!options.render) {
+    var template = options.template;
+    if (template) {
+      if (typeof template === 'string') {
+        if (template.charAt(0) === '#') {
+          template = idToTemplate(template);
+          /* istanbul ignore if */
+          if (!template) {
+            warn(
+              ("Template element not found or is empty: " + (options.template)),
+              this
+            );
+          }
+        }
+      } else if (template.nodeType) {
+        template = template.innerHTML;
+      } else {
+        {
+          warn('invalid template option:' + template, this);
+        }
+        return this
+      }
+    } else if (el) {
+      template = getOuterHTML(el);
+    }
+    if (template) {
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        mark('compile');
+      }
+
+      var ref = compileToFunctions(template, {
+        outputSourceRange: "development" !== 'production',
+        shouldDecodeNewlines: shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref: shouldDecodeNewlinesForHref,
+        delimiters: options.delimiters,
+        comments: options.comments
+      }, this);
+      var render = ref.render;
+      var staticRenderFns = ref.staticRenderFns;
+      options.render = render;
+      options.staticRenderFns = staticRenderFns;
+
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        mark('compile end');
+        measure(("vue " + (this._name) + " compile"), 'compile', 'compile end');
+      }
+    }
+  }
+  return mount.call(this, el, hydrating)
+};
+
+/**
+ * Get outerHTML of elements, taking care
+ * of SVG elements in IE as well.
+ */
+function getOuterHTML (el) {
+  if (el.outerHTML) {
+    return el.outerHTML
+  } else {
+    var container = document.createElement('div');
+    container.appendChild(el.cloneNode(true));
+    return container.innerHTML
+  }
+}
+
+Vue.compile = compileToFunctions;
+
+module.exports = Vue;
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
new file mode 100644
index 00000000000..87cf45647cd
--- /dev/null
+++ b/dist/vue.common.prod.js
@@ -0,0 +1,6 @@
+/*!
+ * Vue.js v2.6.0-beta.2
+ * (c) 2014-2019 Evan You
+ * Released under the MIT License.
+ */
+"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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r=Na(n,t);return{ast:n,render:r.render,staticRenderFns:r.staticRenderFns}},function(e){function t(t,n){var r=Object.create(e),i=[],o=[];if(n)for(var a in n.modules&&(r.modules=(e.modules||[]).concat(n.modules)),n.directives&&(r.directives=k(Object.create(e.directives||null),n.directives)),n)"modules"!==a&&"directives"!==a&&(r[a]=n[a]);r.warn=function(e,t,n){(n?o:i).push(e)};var s=Va(t.trim(),r);return s.errors=i,s.tips=o,s}return{compile:t,compileToFunctions:za(t)}})(ha),qa=(Ja.compile,Ja.compileToFunctions);function Wa(e){return(Ka=Ka||document.createElement("div")).innerHTML=e?'<a href="\n"/>':'<div a="\n"/>',Ka.innerHTML.indexOf("&#10;")>0}var Za=!!U&&Wa(!1),Ga=!!U&&Wa(!0),Xa=g(function(e){var t=Jn(e);return t&&t.innerHTML}),Ya=gn.prototype.$mount;gn.prototype.$mount=function(e,t){if((e=e&&Jn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=Xa(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var i=qa(r,{outputSourceRange:!1,shouldDecodeNewlines:Za,shouldDecodeNewlinesForHref:Ga,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return Ya.call(this,e,t)},gn.compile=qa,module.exports=gn;
\ No newline at end of file
diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
new file mode 100644
index 00000000000..8b72a48b067
--- /dev/null
+++ b/dist/vue.esm.browser.js
@@ -0,0 +1,11724 @@
+/*!
+ * Vue.js v2.6.0-beta.2
+ * (c) 2014-2019 Evan You
+ * Released under the MIT License.
+ */
+/*  */
+
+const emptyObject = Object.freeze({});
+
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
+function isUndef (v) {
+  return v === undefined || v === null
+}
+
+function isDef (v) {
+  return v !== undefined && v !== null
+}
+
+function isTrue (v) {
+  return v === true
+}
+
+function isFalse (v) {
+  return v === false
+}
+
+/**
+ * Check if value is primitive.
+ */
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value, e.g., [object Object].
+ */
+const _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function isRegExp (v) {
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  const n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+function isPromise (val) {
+  return (
+    isDef(val) &&
+    typeof val.then === 'function' &&
+    typeof val.catch === 'function'
+  )
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+  return val == null
+    ? ''
+    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
+
+/**
+ * Convert an input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+  const n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  const map = Object.create(null);
+  const list = str.split(',');
+  for (let i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? val => map[val.toLowerCase()]
+    : val => map[val]
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+const isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if an attribute is a reserved attribute.
+ */
+const isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array.
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    const index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether an object has the property.
+ */
+const hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  const cache = Object.create(null);
+  return (function cachedFn (str) {
+    const hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+const camelizeRE = /-(\w)/g;
+const camelize = cached((str) => {
+  return str.replace(camelizeRE, (_, c) => c ? c.toUpperCase() : '')
+});
+
+/**
+ * Capitalize a string.
+ */
+const capitalize = cached((str) => {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+const hyphenateRE = /\B([A-Z])/g;
+const hyphenate = cached((str) => {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
+ */
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    const l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+const bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+  start = start || 0;
+  let i = list.length - start;
+  const ret = new Array(i);
+  while (i--) {
+    ret[i] = list[i + start];
+  }
+  return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (const key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+  const res = {};
+  for (let i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i]);
+    }
+  }
+  return res
+}
+
+/* eslint-disable no-unused-vars */
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+const no = (a, b, c) => false;
+
+/* eslint-enable no-unused-vars */
+
+/**
+ * Return the same value.
+ */
+const identity = (_) => _;
+
+/**
+ * Generate a string containing static keys from compiler modules.
+ */
+function genStaticKeys (modules) {
+  return modules.reduce((keys, m) => {
+    return keys.concat(m.staticKeys || [])
+  }, []).join(',')
+}
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+  if (a === b) return true
+  const isObjectA = isObject(a);
+  const isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      const isArrayA = Array.isArray(a);
+      const isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every((e, i) => {
+          return looseEqual(e, b[i])
+        })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
+      } else if (!isArrayA && !isArrayB) {
+        const keysA = Object.keys(a);
+        const keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(key => {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
+function looseIndexOf (arr, val) {
+  for (let i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) return i
+  }
+  return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+  let called = false;
+  return function () {
+    if (!called) {
+      called = true;
+      fn.apply(this, arguments);
+    }
+  }
+}
+
+const SSR_ATTR = 'data-server-rendered';
+
+const ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+const LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured',
+  'serverPrefetch'
+];
+
+/*  */
+
+
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  // $flow-disable-line
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  // $flow-disable-line
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/*  */
+
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+const unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+  const c = (str + '').charCodeAt(0);
+  return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/**
+ * Parse simple path.
+ */
+const bailRE = new RegExp(`[^${unicodeLetters}.$_\\d]`);
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  const segments = path.split('.');
+  return function (obj) {
+    for (let i = 0; i < segments.length; i++) {
+      if (!obj) return
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
+/*  */
+
+// can we use __proto__?
+const hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+const inBrowser = typeof window !== 'undefined';
+const inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+const weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+const UA = inBrowser && window.navigator.userAgent.toLowerCase();
+const isIE = UA && /msie|trident/.test(UA);
+const isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+const isEdge = UA && UA.indexOf('edge/') > 0;
+const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+const isPhantomJS = UA && /phantomjs/.test(UA);
+
+// Firefox has a "watch" function on Object.prototype...
+const nativeWatch = ({}).watch;
+
+let supportsPassive = false;
+if (inBrowser) {
+  try {
+    const opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+let _isServer;
+const isServerRendering = () => {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+const devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+const hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+let _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = class Set   {
+    
+    constructor () {
+      this.set = Object.create(null);
+    }
+    has (key) {
+      return this.set[key] === true
+    }
+    add (key) {
+      this.set[key] = true;
+    }
+    clear () {
+      this.set = Object.create(null);
+    }
+  };
+}
+
+/*  */
+
+let warn = noop;
+let tip = noop;
+let generateComponentTrace = (noop); // work around flow check
+let formatComponentName = (noop);
+
+{
+  const hasConsole = typeof console !== 'undefined';
+  const classifyRE = /(?:^|[-_])(\w)/g;
+  const classify = str => str
+    .replace(classifyRE, c => c.toUpperCase())
+    .replace(/[-_]/g, '');
+
+  warn = (msg, vm) => {
+    const trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(`[Vue warn]: ${msg}${trace}`);
+    }
+  };
+
+  tip = (msg, vm) => {
+    if (hasConsole && (!config.silent)) {
+      console.warn(`[Vue tip]: ${msg}` + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = (vm, includeFile) => {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    const options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm;
+    let name = options.name || options._componentTag;
+    const file = options.__file;
+    if (!name && file) {
+      const match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? `<${classify(name)}>` : `<Anonymous>`) +
+      (file && includeFile !== false ? ` at ${file}` : '')
+    )
+  };
+
+  const repeat = (str, n) => {
+    let res = '';
+    while (n) {
+      if (n % 2 === 1) res += str;
+      if (n > 1) str += str;
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = vm => {
+    if (vm._isVue && vm.$parent) {
+      const tree = [];
+      let currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          const last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map((vm, i) => `${
+          i === 0 ? '---> ' : repeat(' ', 5 + i * 2)
+        }${
+          Array.isArray(vm)
+            ? `${formatComponentName(vm[0])}... (${vm[1]} recursive calls)`
+            : formatComponentName(vm)
+        }`)
+        .join('\n')
+    } else {
+      return `\n\n(found in ${formatComponentName(vm)})`
+    }
+  };
+}
+
+/*  */
+
+let uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+class Dep {
+  
+  
+  
+
+  constructor () {
+    this.id = uid++;
+    this.subs = [];
+  }
+
+  addSub (sub) {
+    this.subs.push(sub);
+  }
+
+  removeSub (sub) {
+    remove(this.subs, sub);
+  }
+
+  depend () {
+    if (Dep.target) {
+      Dep.target.addDep(this);
+    }
+  }
+
+  notify () {
+    // stabilize the subscriber list first
+    const subs = this.subs.slice();
+    if (!config.async) {
+      // subs aren't sorted in scheduler if not running async
+      // we need to sort them now to make sure they fire in correct
+      // order
+      subs.sort((a, b) => a.id - b.id);
+    }
+    for (let i = 0, l = subs.length; i < l; i++) {
+      subs[i].update();
+    }
+  }
+}
+
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
+Dep.target = null;
+const targetStack = [];
+
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
+}
+
+function popTarget () {
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
+}
+
+/*  */
+
+class VNode {
+  
+  
+  
+  
+  
+  
+   // rendered in this component's scope
+  
+  
+   // component instance
+   // component placeholder node
+
+  // strictly internal
+   // contains raw HTML? (server only)
+   // hoisted static node
+   // necessary for enter transition check
+   // empty comment placeholder?
+   // is a cloned node?
+   // is a v-once node?
+   // async component factory function
+  
+  
+  
+   // real context vm for functional nodes
+   // for SSR caching
+   // used to store functional render context for devtools
+   // functional scope id support
+
+  constructor (
+    tag,
+    data,
+    children,
+    text,
+    elm,
+    context,
+    componentOptions,
+    asyncFactory
+  ) {
+    this.tag = tag;
+    this.data = data;
+    this.children = children;
+    this.text = text;
+    this.elm = elm;
+    this.ns = undefined;
+    this.context = context;
+    this.fnContext = undefined;
+    this.fnOptions = undefined;
+    this.fnScopeId = undefined;
+    this.key = data && data.key;
+    this.componentOptions = componentOptions;
+    this.componentInstance = undefined;
+    this.parent = undefined;
+    this.raw = false;
+    this.isStatic = false;
+    this.isRootInsert = true;
+    this.isComment = false;
+    this.isCloned = false;
+    this.isOnce = false;
+    this.asyncFactory = asyncFactory;
+    this.asyncMeta = undefined;
+    this.isAsyncPlaceholder = false;
+  }
+
+  // DEPRECATED: alias for componentInstance for backwards compat.
+  /* istanbul ignore next */
+  get child () {
+    return this.componentInstance
+  }
+}
+
+const createEmptyVNode = (text = '') => {
+  const node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode) {
+  const cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
+  cloned.isCloned = true;
+  return cloned
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+const arrayProto = Array.prototype;
+const arrayMethods = Object.create(arrayProto);
+
+const methodsToPatch = [
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
+  // cache original method
+  const original = arrayProto[method];
+  def(arrayMethods, method, function mutator (...args) {
+    const result = original.apply(this, args);
+    const ob = this.__ob__;
+    let inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) ob.observeArray(inserted);
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+const arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
+ */
+let shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
+
+/**
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatch updates.
+ */
+class Observer {
+  
+  
+   // number of vms that have this object as root $data
+
+  constructor (value) {
+    this.value = value;
+    this.dep = new Dep();
+    this.vmCount = 0;
+    def(value, '__ob__', this);
+    if (Array.isArray(value)) {
+      if (hasProto) {
+        protoAugment(value, arrayMethods);
+      } else {
+        copyAugment(value, arrayMethods, arrayKeys);
+      }
+      this.observeArray(value);
+    } else {
+      this.walk(value);
+    }
+  }
+
+  /**
+   * Walk through all properties and convert them into
+   * getter/setters. This method should only be called when
+   * value type is Object.
+   */
+  walk (obj) {
+    const keys = Object.keys(obj);
+    for (let i = 0; i < keys.length; i++) {
+      defineReactive$$1(obj, keys[i]);
+    }
+  }
+
+  /**
+   * Observe a list of Array items.
+   */
+  observeArray (items) {
+    for (let i = 0, l = items.length; i < l; i++) {
+      observe(items[i]);
+    }
+  }
+}
+
+// helpers
+
+/**
+ * Augment a target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment a target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (let i = 0, l = keys.length; i < l; i++) {
+    const key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  let ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    shouldObserve &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive$$1 (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  const dep = new Dep();
+
+  const property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  const getter = property && property.get;
+  const setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
+    val = obj[key];
+  }
+
+  let childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      const value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      const value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if (customSetter) {
+        customSetter();
+      }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) return
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(`Cannot set reactive property on undefined, null, or primitive value: ${(target)}`);
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (key in target && !(key in Object.prototype)) {
+    target[key] = val;
+    return val
+  }
+  const ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive$$1(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(`Cannot delete reactive property on undefined, null, or primitive value: ${(target)}`);
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.splice(key, 1);
+    return
+  }
+  const ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid deleting properties on a Vue instance or its root $data ' +
+      '- just set it to null.'
+    );
+    return
+  }
+  if (!hasOwn(target, key)) {
+    return
+  }
+  delete target[key];
+  if (!ob) {
+    return
+  }
+  ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (let e, i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+const strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        `option "${key}" can only be used during instance ` +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) return to
+  let key, toVal, fromVal;
+
+  const keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from);
+
+  for (let i = 0; i < keys.length; i++) {
+    key = keys[i];
+    // in case the object is already observed...
+    if (key === '__ob__') continue
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+      )
+    }
+  } else {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      const instanceData = typeof childVal === 'function'
+        ? childVal.call(vm, vm)
+        : childVal;
+      const defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm, vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn(parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  const res = childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  const res = [];
+  for (let i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
+}
+
+LIFECYCLE_HOOKS.forEach(hook => {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  const res = Object.create(parentVal || null);
+  if (childVal) {
+    assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) parentVal = undefined;
+  if (childVal === nativeWatch) childVal = undefined;
+  /* istanbul ignore if */
+  if (!childVal) return Object.create(parentVal || null)
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) return childVal
+  const ret = {};
+  extend(ret, parentVal);
+  for (const key in childVal) {
+    let parent = ret[key];
+    const child = childVal[key];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) return childVal
+  const ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) extend(ret, childVal);
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+const defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+  for (const key in options.components) {
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeLetters}]*$`).test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'should conform to valid custom element name in html5 specification.'
+    );
+  }
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
+  }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+  const props = options.props;
+  if (!props) return
+  const res = {};
+  let i, val, name;
+  if (Array.isArray(props)) {
+    i = props.length;
+    while (i--) {
+      val = props[i];
+      if (typeof val === 'string') {
+        name = camelize(val);
+        res[name] = { type: null };
+      } else {
+        warn('props must be strings when using array syntax.');
+      }
+    }
+  } else if (isPlainObject(props)) {
+    for (const key in props) {
+      val = props[key];
+      name = camelize(key);
+      res[name] = isPlainObject(val)
+        ? val
+        : { type: val };
+    }
+  } else {
+    warn(
+      `Invalid value for option "props": expected an Array or an Object, ` +
+      `but got ${toRawType(props)}.`,
+      vm
+    );
+  }
+  options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+  const inject = options.inject;
+  if (!inject) return
+  const normalized = options.inject = {};
+  if (Array.isArray(inject)) {
+    for (let i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (const key in inject) {
+      const val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else {
+    warn(
+      `Invalid value for option "inject": expected an Array or an Object, ` +
+      `but got ${toRawType(inject)}.`,
+      vm
+    );
+  }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+  const dirs = options.directives;
+  if (dirs) {
+    for (const key in dirs) {
+      const def$$1 = dirs[key];
+      if (typeof def$$1 === 'function') {
+        dirs[key] = { bind: def$$1, update: def$$1 };
+      }
+    }
+  }
+}
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      `Invalid value for option "${name}": expected an Object, ` +
+      `but got ${toRawType(value)}.`,
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+  parent,
+  child,
+  vm
+) {
+  {
+    checkComponents(child);
+  }
+
+  if (typeof child === 'function') {
+    child = child.options;
+  }
+
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
+  normalizeDirectives(child);
+
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (let i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
+    }
+  }
+
+  const options = {};
+  let key;
+  for (key in parent) {
+    mergeField(key);
+  }
+  for (key in child) {
+    if (!hasOwn(parent, key)) {
+      mergeField(key);
+    }
+  }
+  function mergeField (key) {
+    const strat = strats[key] || defaultStrat;
+    options[key] = strat(parent[key], child[key], vm, key);
+  }
+  return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+  options,
+  type,
+  id,
+  warnMissing
+) {
+  /* istanbul ignore if */
+  if (typeof id !== 'string') {
+    return
+  }
+  const assets = options[type];
+  // check local registration variations first
+  if (hasOwn(assets, id)) return assets[id]
+  const camelizedId = camelize(id);
+  if (hasOwn(assets, camelizedId)) return assets[camelizedId]
+  const PascalCaseId = capitalize(camelizedId);
+  if (hasOwn(assets, PascalCaseId)) return assets[PascalCaseId]
+  // fallback to prototype chain
+  const res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+  if (warnMissing && !res) {
+    warn(
+      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+      options
+    );
+  }
+  return res
+}
+
+/*  */
+
+
+
+function validateProp (
+  key,
+  propOptions,
+  propsData,
+  vm
+) {
+  const prop = propOptions[key];
+  const absent = !hasOwn(propsData, key);
+  let value = propsData[key];
+  // boolean casting
+  const booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
+    if (absent && !hasOwn(prop, 'default')) {
+      value = false;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      const stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
+    }
+  }
+  // check default value
+  if (value === undefined) {
+    value = getPropDefaultValue(vm, prop, key);
+    // since the default value is a fresh copy,
+    // make sure to observe it.
+    const prevShouldObserve = shouldObserve;
+    toggleObserving(true);
+    observe(value);
+    toggleObserving(prevShouldObserve);
+  }
+  {
+    assertProp(prop, key, value, vm, absent);
+  }
+  return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+  // no default, return undefined
+  if (!hasOwn(prop, 'default')) {
+    return undefined
+  }
+  const def = prop.default;
+  // warn against non-factory defaults for Object & Array
+  if (isObject(def)) {
+    warn(
+      'Invalid default value for prop "' + key + '": ' +
+      'Props with type Object/Array must use a factory function ' +
+      'to return the default value.',
+      vm
+    );
+  }
+  // the raw prop value was also undefined from previous render,
+  // return previous default value to avoid unnecessary watcher trigger
+  if (vm && vm.$options.propsData &&
+    vm.$options.propsData[key] === undefined &&
+    vm._props[key] !== undefined
+  ) {
+    return vm._props[key]
+  }
+  // call factory function for non-Function types
+  // a value is Function if its prototype is function even across different execution context
+  return typeof def === 'function' && getType(prop.type) !== 'Function'
+    ? def.call(vm)
+    : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+  prop,
+  name,
+  value,
+  vm,
+  absent
+) {
+  if (prop.required && absent) {
+    warn(
+      'Missing required prop: "' + name + '"',
+      vm
+    );
+    return
+  }
+  if (value == null && !prop.required) {
+    return
+  }
+  let type = prop.type;
+  let valid = !type || type === true;
+  const expectedTypes = [];
+  if (type) {
+    if (!Array.isArray(type)) {
+      type = [type];
+    }
+    for (let i = 0; i < type.length && !valid; i++) {
+      const assertedType = assertType(value, type[i]);
+      expectedTypes.push(assertedType.expectedType || '');
+      valid = assertedType.valid;
+    }
+  }
+
+  if (!valid) {
+    warn(
+      getInvalidTypeMessage(name, value, expectedTypes),
+      vm
+    );
+    return
+  }
+  const validator = prop.validator;
+  if (validator) {
+    if (!validator(value)) {
+      warn(
+        'Invalid prop: custom validator check failed for prop "' + name + '".',
+        vm
+      );
+    }
+  }
+}
+
+const simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+  let valid;
+  const expectedType = getType(type);
+  if (simpleCheckRE.test(expectedType)) {
+    const t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
+  } else if (expectedType === 'Object') {
+    valid = isPlainObject(value);
+  } else if (expectedType === 'Array') {
+    valid = Array.isArray(value);
+  } else {
+    valid = value instanceof type;
+  }
+  return {
+    valid,
+    expectedType
+  }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+  const match = fn && fn.toString().match(/^\s*function (\w+)/);
+  return match ? match[1] : ''
+}
+
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
+  }
+  for (let i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
+    }
+  }
+  return -1
+}
+
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  let message = `Invalid prop: type check failed for prop "${name}".` +
+    ` Expected ${expectedTypes.map(capitalize).join(', ')}`;
+  const expectedType = expectedTypes[0];
+  const receivedType = toRawType(value);
+  const expectedValue = styleValue(value, expectedType);
+  const receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += ` with value ${expectedValue}`;
+  }
+  message += `, got ${receivedType} `;
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += `with value ${receivedValue}.`;
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return `"${value}"`
+  } else if (type === 'Number') {
+    return `${Number(value)}`
+  } else {
+    return `${value}`
+  }
+}
+
+function isExplicable (value) {
+  const explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(elem => value.toLowerCase() === elem)
+}
+
+function isBoolean (...args) {
+  return args.some(elem => elem.toLowerCase() === 'boolean')
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    let cur = vm;
+    while ((cur = cur.$parent)) {
+      const hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (let i = 0; i < hooks.length; i++) {
+          try {
+            const capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) return
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function invokeWithErrorHandling (
+  handler,
+  context,
+  args,
+  vm,
+  info
+) {
+  let res;
+  try {
+    res = args ? handler.apply(context, args) : handler.call(context);
+    if (isPromise(res)) {
+      res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
+    }
+  } catch (e) {
+    handleError(e, vm, info);
+  }
+  return res
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(`Error in ${info}: "${err.toString()}"`, vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+
+let isUsingMicroTask = false;
+
+const callbacks = [];
+let pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  const copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (let i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using microtasks.
+// In 2.5 we used (macro) tasks (in combination with microtasks).
+// However, it has subtle problems when state is changed right before repaint
+// (e.g. #6813, out-in transitions).
+// Also, using (macro) tasks in event handler would cause some weird behaviors
+// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+// So we now use microtasks everywhere, again.
+// A major drawback of this tradeoff is that there are some scenarios
+// where microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690, which have workarounds)
+// or even between bubbling of the same event (#6566).
+let timerFunc;
+
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  const p = Promise.resolve();
+  timerFunc = () => {
+    p.then(flushCallbacks);
+    // In problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) setTimeout(noop);
+  };
+  isUsingMicroTask = true;
+} else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  let counter = 1;
+  const observer = new MutationObserver(flushCallbacks);
+  const textNode = document.createTextNode(String(counter));
+  observer.observe(textNode, {
+    characterData: true
+  });
+  timerFunc = () => {
+    counter = (counter + 1) % 2;
+    textNode.data = String(counter);
+  };
+  isUsingMicroTask = true;
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  // Fallback to setImmediate.
+  // Techinically it leverages the (macro) task queue,
+  // but it is still a better choice than setTimeout.
+  timerFunc = () => {
+    setImmediate(flushCallbacks);
+  };
+} else {
+  // Fallback to setTimeout.
+  timerFunc = () => {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+function nextTick (cb, ctx) {
+  let _resolve;
+  callbacks.push(() => {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    timerFunc();
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(resolve => {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
+let mark;
+let measure;
+
+{
+  const perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    mark = tag => perf.mark(tag);
+    measure = (name, startTag, endTag) => {
+      perf.measure(name, startTag, endTag);
+      perf.clearMarks(startTag);
+      perf.clearMarks(endTag);
+      // perf.clearMeasures(name)
+    };
+  }
+}
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+let initProxy;
+
+{
+  const allowedGlobals = makeMap(
+    'Infinity,undefined,NaN,isFinite,isNaN,' +
+    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+    'require' // for Webpack/Browserify
+  );
+
+  const warnNonPresent = (target, key) => {
+    warn(
+      `Property or method "${key}" is not defined on the instance but ` +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+      target
+    );
+  };
+
+  const warnReservedPrefix = (target, key) => {
+    warn(
+      `Property "${key}" must be accessed with "$data.${key}" because ` +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
+  const hasProxy =
+    typeof Proxy !== 'undefined' && isNative(Proxy);
+
+  if (hasProxy) {
+    const isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+    config.keyCodes = new Proxy(config.keyCodes, {
+      set (target, key, value) {
+        if (isBuiltInModifier(key)) {
+          warn(`Avoid overwriting built-in modifier in config.keyCodes: .${key}`);
+          return false
+        } else {
+          target[key] = value;
+          return true
+        }
+      }
+    });
+  }
+
+  const hasHandler = {
+    has (target, key) {
+      const has = key in target;
+      const isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
+      if (!has && !isAllowed) {
+        if (key in target.$data) warnReservedPrefix(target, key);
+        else warnNonPresent(target, key);
+      }
+      return has || !isAllowed
+    }
+  };
+
+  const getHandler = {
+    get (target, key) {
+      if (typeof key === 'string' && !(key in target)) {
+        if (key in target.$data) warnReservedPrefix(target, key);
+        else warnNonPresent(target, key);
+      }
+      return target[key]
+    }
+  };
+
+  initProxy = function initProxy (vm) {
+    if (hasProxy) {
+      // determine which proxy handler to use
+      const options = vm.$options;
+      const handlers = options.render && options.render._withStripped
+        ? getHandler
+        : hasHandler;
+      vm._renderProxy = new Proxy(vm, handlers);
+    } else {
+      vm._renderProxy = vm;
+    }
+  };
+}
+
+/*  */
+
+const seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  let i, keys;
+  const isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+    return
+  }
+  if (val.__ob__) {
+    const depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) _traverse(val[i], seen);
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) _traverse(val[keys[i]], seen);
+  }
+}
+
+/*  */
+
+const normalizeEvent = cached((name) => {
+  const passive = name.charAt(0) === '&';
+  name = passive ? name.slice(1) : name;
+  const once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+  name = once$$1 ? name.slice(1) : name;
+  const capture = name.charAt(0) === '!';
+  name = capture ? name.slice(1) : name;
+  return {
+    name,
+    once: once$$1,
+    capture,
+    passive
+  }
+});
+
+function createFnInvoker (fns, vm) {
+  function invoker () {
+    const fns = invoker.fns;
+    if (Array.isArray(fns)) {
+      const cloned = fns.slice();
+      for (let i = 0; i < cloned.length; i++) {
+        invokeWithErrorHandling(cloned[i], null, arguments, vm, `v-on handler`);
+      }
+    } else {
+      // return handler return value for single handlers
+      return invokeWithErrorHandling(fns, null, arguments, vm, `v-on handler`)
+    }
+  }
+  invoker.fns = fns;
+  return invoker
+}
+
+function updateListeners (
+  on,
+  oldOn,
+  add,
+  remove$$1,
+  createOnceHandler,
+  vm
+) {
+  let name, def$$1, cur, old, event;
+  for (name in on) {
+    def$$1 = cur = on[name];
+    old = oldOn[name];
+    event = normalizeEvent(name);
+    if (isUndef(cur)) {
+      warn(
+        `Invalid handler for event "${event.name}": got ` + String(cur),
+        vm
+      );
+    } else if (isUndef(old)) {
+      if (isUndef(cur.fns)) {
+        cur = on[name] = createFnInvoker(cur, vm);
+      }
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
+    } else if (cur !== old) {
+      old.fns = cur;
+      on[name] = old;
+    }
+  }
+  for (name in oldOn) {
+    if (isUndef(on[name])) {
+      event = normalizeEvent(name);
+      remove$$1(event.name, oldOn[name], event.capture);
+    }
+  }
+}
+
+/*  */
+
+function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
+  let invoker;
+  const oldHook = def[hookKey];
+
+  function wrappedHook () {
+    hook.apply(this, arguments);
+    // important: remove merged hook to ensure it's called only once
+    // and prevent memory leak
+    remove(invoker.fns, wrappedHook);
+  }
+
+  if (isUndef(oldHook)) {
+    // no existing hook
+    invoker = createFnInvoker([wrappedHook]);
+  } else {
+    /* istanbul ignore if */
+    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+      // already a merged invoker
+      invoker = oldHook;
+      invoker.fns.push(wrappedHook);
+    } else {
+      // existing plain hook
+      invoker = createFnInvoker([oldHook, wrappedHook]);
+    }
+  }
+
+  invoker.merged = true;
+  def[hookKey] = invoker;
+}
+
+/*  */
+
+function extractPropsFromVNodeData (
+  data,
+  Ctor,
+  tag
+) {
+  // we are only extracting raw values here.
+  // validation and default values are handled in the child
+  // component itself.
+  const propOptions = Ctor.options.props;
+  if (isUndef(propOptions)) {
+    return
+  }
+  const res = {};
+  const { attrs, props } = data;
+  if (isDef(attrs) || isDef(props)) {
+    for (const key in propOptions) {
+      const altKey = hyphenate(key);
+      {
+        const keyInLowerCase = key.toLowerCase();
+        if (
+          key !== keyInLowerCase &&
+          attrs && hasOwn(attrs, keyInLowerCase)
+        ) {
+          tip(
+            `Prop "${keyInLowerCase}" is passed to component ` +
+            `${formatComponentName(tag || Ctor)}, but the declared prop name is` +
+            ` "${key}". ` +
+            `Note that HTML attributes are case-insensitive and camelCased ` +
+            `props need to use their kebab-case equivalents when using in-DOM ` +
+            `templates. You should probably use "${altKey}" instead of "${key}".`
+          );
+        }
+      }
+      checkProp(res, props, key, altKey, true) ||
+      checkProp(res, attrs, key, altKey, false);
+    }
+  }
+  return res
+}
+
+function checkProp (
+  res,
+  hash,
+  key,
+  altKey,
+  preserve
+) {
+  if (isDef(hash)) {
+    if (hasOwn(hash, key)) {
+      res[key] = hash[key];
+      if (!preserve) {
+        delete hash[key];
+      }
+      return true
+    } else if (hasOwn(hash, altKey)) {
+      res[key] = hash[altKey];
+      if (!preserve) {
+        delete hash[altKey];
+      }
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array<VNode>. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+  for (let i = 0; i < children.length; i++) {
+    if (Array.isArray(children[i])) {
+      return Array.prototype.concat.apply([], children)
+    }
+  }
+  return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. <template>, <slot>, v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+  return isPrimitive(children)
+    ? [createTextVNode(children)]
+    : Array.isArray(children)
+      ? normalizeArrayChildren(children)
+      : undefined
+}
+
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+  const res = [];
+  let i, c, lastIndex, last;
+  for (i = 0; i < children.length; i++) {
+    c = children[i];
+    if (isUndef(c) || typeof c === 'boolean') continue
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
+    //  nested
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, `${nestedIndex || ''}_${i}`);
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
+    } else if (isPrimitive(c)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
+        res[lastIndex] = createTextVNode(last.text + c);
+      } else if (c !== '') {
+        // convert primitive to vnode
+        res.push(createTextVNode(c));
+      }
+    } else {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
+        res[lastIndex] = createTextVNode(last.text + c.text);
+      } else {
+        // default key for nested array children (likely generated by v-for)
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = `__vlist${nestedIndex}_${i}__`;
+        }
+        res.push(c);
+      }
+    }
+  }
+  return res
+}
+
+/*  */
+
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
+
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  const node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data, context, children, tag };
+  return node
+}
+
+function resolveAsyncComponent (
+  factory,
+  baseCtor,
+  context
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  if (isDef(factory.contexts)) {
+    // already pending
+    factory.contexts.push(context);
+  } else {
+    const contexts = factory.contexts = [context];
+    let sync = true;
+
+    const forceRender = (renderCompleted) => {
+      for (let i = 0, l = contexts.length; i < l; i++) {
+        contexts[i].$forceUpdate();
+      }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
+    };
+
+    const resolve = once((res) => {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        contexts.length = 0;
+      }
+    });
+
+    const reject = once(reason => {
+      warn(
+        `Failed to resolve async component: ${String(factory)}` +
+        (reason ? `\nReason: ${reason}` : '')
+      );
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    const res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(() => {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(() => {
+            if (isUndef(factory.resolved)) {
+              reject(
+                `timeout (${res.timeout}ms)`
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
+  }
+}
+
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (let i = 0; i < children.length; i++) {
+      const c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
+      }
+    }
+  }
+}
+
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  const listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
+  }
+}
+
+let target;
+
+function add (event, fn) {
+  target.$on(event, fn);
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function createOnceHandler (event, fn) {
+  const _target = target;
+  return function onceHandler () {
+    const res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
+}
+
+function eventsMixin (Vue) {
+  const hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    const vm = this;
+    if (Array.isArray(event)) {
+      for (let i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$once = function (event, fn) {
+    const vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    const vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (let i = 0, l = event.length; i < l; i++) {
+        vm.$off(event[i], fn);
+      }
+      return vm
+    }
+    // specific event
+    const cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    let cb;
+    let i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    const vm = this;
+    {
+      const lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          `Event "${lowerCaseEvent}" is emitted in component ` +
+          `${formatComponentName(vm)} but the handler is registered for "${event}". ` +
+          `Note that HTML attributes are case-insensitive and you cannot use ` +
+          `v-on to listen to camelCase events when using in-DOM templates. ` +
+          `You should probably use "${hyphenate(event)}" instead of "${event}".`
+        );
+      }
+    }
+    let cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      const args = toArray(arguments, 1);
+      const info = `event handler for "${event}"`;
+      for (let i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
+    }
+    return vm
+  };
+}
+
+/*  */
+
+
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  const slots = {};
+  for (let i = 0, l = children.length; i < l; i++) {
+    const child = children[i];
+    const data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      const name = data.slot;
+      const slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (const name in slots) {
+    if (slots[name].every(isWhitespace)) {
+      delete slots[name];
+    }
+  }
+  return slots
+}
+
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
+) {
+  res = res || { $stable: !hasDynamicKeys };
+  for (let i = 0; i < fns.length; i++) {
+    const slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else {
+      res[slot.key] = slot.fn;
+    }
+  }
+  return res
+}
+
+/*  */
+
+let activeInstance = null;
+let isUpdatingChildComponent = false;
+
+function setActiveInstance(vm) {
+  const prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return () => {
+    activeInstance = prevActiveInstance;
+  }
+}
+
+function initLifecycle (vm) {
+  const options = vm.$options;
+
+  // locate first non-abstract parent
+  let parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
+    }
+    parent.$children.push(vm);
+  }
+
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
+
+  vm.$children = [];
+  vm.$refs = {};
+
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    const vm = this;
+    const prevEl = vm.$el;
+    const prevVnode = vm._vnode;
+    const restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
+
+  Vue.prototype.$forceUpdate = function () {
+    const vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
+
+  Vue.prototype.$destroy = function () {
+    const vm = this;
+    if (vm._isBeingDestroyed) {
+      return
+    }
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    const parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    let i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
+}
+
+function mountComponent (
+  vm,
+  el,
+  hydrating
+) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
+        warn(
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
+        );
+      }
+    }
+  }
+  callHook(vm, 'beforeMount');
+
+  let updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = () => {
+      const name = vm._name;
+      const id = vm._uid;
+      const startTag = `vue-perf-start:${id}`;
+      const endTag = `vue-perf-end:${id}`;
+
+      mark(startTag);
+      const vnode = vm._render();
+      mark(endTag);
+      measure(`vue ${name} render`, startTag, endTag);
+
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(`vue ${name} patch`, startTag, endTag);
+    };
+  } else {
+    updateComponent = () => {
+      vm._update(vm._render(), hydrating);
+    };
+  }
+
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
+
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  }
+  return vm
+}
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+  {
+    isUpdatingChildComponent = true;
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  const hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  const needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    const props = vm._props;
+    const propKeys = vm.$options._propKeys || [];
+    for (let i = 0; i < propKeys.length; i++) {
+      const key = propKeys[i];
+      const propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  const oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
+}
+
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) return true
+  }
+  return false
+}
+
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (let i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
+  }
+}
+
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (let i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
+
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  const handlers = vm.$options[hook];
+  const info = `${hook} hook`;
+  if (handlers) {
+    for (let i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
+}
+
+/*  */
+
+const MAX_UPDATE_COUNT = 100;
+
+const queue = [];
+const activatedChildren = [];
+let has = {};
+let circular = {};
+let waiting = false;
+let flushing = false;
+let index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+let currentFlushTimestamp = 0;
+
+// Async edge case fix requires storing an event listener's attach timestamp.
+let getNow = Date.now;
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res ( relative to poge load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = () => performance.now();
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  let watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort((a, b) => a.id - b.id);
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? `in watcher with expression "${watcher.expression}"`
+              : `in a component render function.`
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  const activatedQueue = activatedChildren.slice();
+  const updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  let i = queue.length;
+  while (i--) {
+    const watcher = queue[i];
+    const vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (let i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  const id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      let i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
+
+/*  */
+
+
+
+let uid$1 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+class Watcher {
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+
+  constructor (
+    vm,
+    expOrFn,
+    cb,
+    options,
+    isRenderWatcher
+  ) {
+    this.vm = vm;
+    if (isRenderWatcher) {
+      vm._watcher = this;
+    }
+    vm._watchers.push(this);
+    // options
+    if (options) {
+      this.deep = !!options.deep;
+      this.user = !!options.user;
+      this.lazy = !!options.lazy;
+      this.sync = !!options.sync;
+      this.before = options.before;
+    } else {
+      this.deep = this.user = this.lazy = this.sync = false;
+    }
+    this.cb = cb;
+    this.id = ++uid$1; // uid for batching
+    this.active = true;
+    this.dirty = this.lazy; // for lazy watchers
+    this.deps = [];
+    this.newDeps = [];
+    this.depIds = new _Set();
+    this.newDepIds = new _Set();
+    this.expression = expOrFn.toString();
+    // parse expression for getter
+    if (typeof expOrFn === 'function') {
+      this.getter = expOrFn;
+    } else {
+      this.getter = parsePath(expOrFn);
+      if (!this.getter) {
+        this.getter = noop;
+        warn(
+          `Failed watching path: "${expOrFn}" ` +
+          'Watcher only accepts simple dot-delimited paths. ' +
+          'For full control, use a function instead.',
+          vm
+        );
+      }
+    }
+    this.value = this.lazy
+      ? undefined
+      : this.get();
+  }
+
+  /**
+   * Evaluate the getter, and re-collect dependencies.
+   */
+  get () {
+    pushTarget(this);
+    let value;
+    const vm = this.vm;
+    try {
+      value = this.getter.call(vm, vm);
+    } catch (e) {
+      if (this.user) {
+        handleError(e, vm, `getter for watcher "${this.expression}"`);
+      } else {
+        throw e
+      }
+    } finally {
+      // "touch" every property so they are all tracked as
+      // dependencies for deep watching
+      if (this.deep) {
+        traverse(value);
+      }
+      popTarget();
+      this.cleanupDeps();
+    }
+    return value
+  }
+
+  /**
+   * Add a dependency to this directive.
+   */
+  addDep (dep) {
+    const id = dep.id;
+    if (!this.newDepIds.has(id)) {
+      this.newDepIds.add(id);
+      this.newDeps.push(dep);
+      if (!this.depIds.has(id)) {
+        dep.addSub(this);
+      }
+    }
+  }
+
+  /**
+   * Clean up for dependency collection.
+   */
+  cleanupDeps () {
+    let i = this.deps.length;
+    while (i--) {
+      const dep = this.deps[i];
+      if (!this.newDepIds.has(dep.id)) {
+        dep.removeSub(this);
+      }
+    }
+    let tmp = this.depIds;
+    this.depIds = this.newDepIds;
+    this.newDepIds = tmp;
+    this.newDepIds.clear();
+    tmp = this.deps;
+    this.deps = this.newDeps;
+    this.newDeps = tmp;
+    this.newDeps.length = 0;
+  }
+
+  /**
+   * Subscriber interface.
+   * Will be called when a dependency changes.
+   */
+  update () {
+    /* istanbul ignore else */
+    if (this.lazy) {
+      this.dirty = true;
+    } else if (this.sync) {
+      this.run();
+    } else {
+      queueWatcher(this);
+    }
+  }
+
+  /**
+   * Scheduler job interface.
+   * Will be called by the scheduler.
+   */
+  run () {
+    if (this.active) {
+      const value = this.get();
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        const oldValue = this.value;
+        this.value = value;
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue);
+          } catch (e) {
+            handleError(e, this.vm, `callback for watcher "${this.expression}"`);
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue);
+        }
+      }
+    }
+  }
+
+  /**
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
+   */
+  evaluate () {
+    this.value = this.get();
+    this.dirty = false;
+  }
+
+  /**
+   * Depend on all deps collected by this watcher.
+   */
+  depend () {
+    let i = this.deps.length;
+    while (i--) {
+      this.deps[i].depend();
+    }
+  }
+
+  /**
+   * Remove self from all dependencies' subscriber list.
+   */
+  teardown () {
+    if (this.active) {
+      // remove self from vm's watcher list
+      // this is a somewhat expensive operation so we skip it
+      // if the vm is being destroyed.
+      if (!this.vm._isBeingDestroyed) {
+        remove(this.vm._watchers, this);
+      }
+      let i = this.deps.length;
+      while (i--) {
+        this.deps[i].removeSub(this);
+      }
+      this.active = false;
+    }
+  }
+}
+
+/*  */
+
+const sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  const opts = vm.$options;
+  if (opts.props) initProps(vm, opts.props);
+  if (opts.methods) initMethods(vm, opts.methods);
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) initComputed(vm, opts.computed);
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
+
+function initProps (vm, propsOptions) {
+  const propsData = vm.$options.propsData || {};
+  const props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  const keys = vm.$options._propKeys = [];
+  const isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  for (const key in propsOptions) {
+    keys.push(key);
+    const value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      const hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          `"${hyphenatedKey}" is a reserved attribute and cannot be used as component prop.`,
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, () => {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            `Avoid mutating a prop directly since the value will be ` +
+            `overwritten whenever the parent component re-renders. ` +
+            `Instead, use a data or computed property based on the prop's ` +
+            `value. Prop being mutated: "${key}"`,
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, `_props`, key);
+    }
+  }
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  let data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
+  }
+  // proxy data on instance
+  const keys = Object.keys(data);
+  const props = vm.$options.props;
+  const methods = vm.$options.methods;
+  let i = keys.length;
+  while (i--) {
+    const key = keys[i];
+    {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          `Method "${key}" has already been defined as a data property.`,
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      warn(
+        `The data property "${key}" is already declared as a prop. ` +
+        `Use prop default value instead.`,
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, `_data`, key);
+    }
+  }
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, `data()`);
+    return {}
+  } finally {
+    popTarget();
+  }
+}
+
+const computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  const watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  const isSSR = isServerRendering();
+
+  for (const key in computed) {
+    const userDef = computed[key];
+    const getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        `Getter is missing for computed property "${key}".`,
+        vm
+      );
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(`The computed property "${key}" is already defined in data.`, vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(`The computed property "${key}" is already defined as a prop.`, vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  const shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
+  } else {
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
+  }
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        `Computed property "${key}" was assigned to but it has no setter.`,
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+  return function computedGetter () {
+    const watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
+    }
+  }
+}
+
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
+function initMethods (vm, methods) {
+  const props = vm.$options.props;
+  for (const key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          `Method "${key}" has type "${typeof methods[key]}" in the component definition. ` +
+          `Did you reference the function correctly?`,
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          `Method "${key}" has already been defined as a prop.`,
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          `Method "${key}" conflicts with an existing Vue instance method. ` +
+          `Avoid defining component methods that start with _ or $.`
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
+
+function initWatch (vm, watch) {
+  for (const key in watch) {
+    const handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (let i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
+
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
+  }
+  return vm.$watch(expOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  const dataDef = {};
+  dataDef.get = function () { return this._data };
+  const propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn(`$props is readonly.`, this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
+
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
+    const vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
+    options = options || {};
+    options.user = true;
+    const watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, `callback for immediate watcher "${watcher.expression}"`);
+      }
+    }
+    return function unwatchFn () {
+      watcher.teardown();
+    }
+  };
+}
+
+/*  */
+
+function initProvide (vm) {
+  const provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
+  }
+}
+
+function initInjections (vm) {
+  const result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(key => {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], () => {
+          warn(
+            `Avoid mutating an injected value directly since the changes will be ` +
+            `overwritten whenever the provided component re-renders. ` +
+            `injection being mutated: "${key}"`,
+            vm
+          );
+        });
+      }
+    });
+    toggleObserving(true);
+  }
+}
+
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    const result = Object.create(null);
+    const keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
+
+    for (let i = 0; i < keys.length; i++) {
+      const key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') continue
+      const provideKey = inject[key].from;
+      let source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
+        }
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          const provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(`Injection "${key}" not found`, vm);
+        }
+      }
+    }
+    return result
+  }
+}
+
+/*  */
+
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  let res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (const key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (const key in normalSlots) {
+    if (!(key in res)) {
+      res[key] = proxyNormalSlot(normalSlots, key);
+    }
+  }
+  res._normalized = true;
+  res.$stable = slots && slots.$stable;
+  return res
+}
+
+function normalizeScopedSlot(fn) {
+  return scope => {
+    const res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
+
+function proxyNormalSlot(slots, key) {
+  return () => slots[key]
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  let ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      const iterator = val[Symbol.iterator]();
+      let result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
+      }
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
+    }
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  const scopedSlotFn = this.$scopedSlots[name];
+  let nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
+  }
+
+  const target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  const mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      let hash;
+      for (const key in value) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          const type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        const camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            const on = data.on || (data.on = {});
+            on[`update:${camelizedKey}`] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  const cached = this._staticTrees || (this._staticTrees = []);
+  let tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, `__static__${index}`, false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (let i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], `${key}_${i}`, isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      const on = data.on = data.on ? extend({}, data.on) : {};
+      for (const key in value) {
+        const existing = on[key];
+        const ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function bindDynamicKeys (baseObj, values) {
+  for (let i = 0; i < values.length; i += 2) {
+    const key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        `Invalid value for dynamic directive argument (expected string or null): ${key}`,
+        this
+      );
+    }
+  }
+  return baseObj
+}
+
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  const options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  let contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  const isCompiled = isTrue(options._compiled);
+  const needNormalization = !isCompiled;
+
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = () => resolveSlots(children, parent);
+
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
+  }
+
+  if (options._scopeId) {
+    this._c = (a, b, c, d) => {
+      const vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  const options = Ctor.options;
+  const props = {};
+  const propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (const key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) mergeProps(props, data.attrs);
+    if (isDef(data.props)) mergeProps(props, data.props);
+  }
+
+  const renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  const vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    const vnodes = normalizeChildren(vnode) || [];
+    const res = new Array(vnodes.length);
+    for (let i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
+  }
+}
+
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  const clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
+}
+
+function mergeProps (to, from) {
+  for (const key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+const componentVNodeHooks = {
+  init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      const mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      const child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
+
+  prepatch (oldVnode, vnode) {
+    const options = vnode.componentOptions;
+    const child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert (vnode) {
+    const { context, componentInstance } = vnode;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy (vnode) {
+    const { componentInstance } = vnode;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+const hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  const baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(`Invalid Component definition: ${String(Ctor)}`, context);
+    }
+    return
+  }
+
+  // async component
+  let asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
+
+  data = data || {};
+
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
+
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
+
+  // extract props
+  const propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  const listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    const slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
+    }
+  }
+
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  const name = Ctor.options.name || tag;
+  const vnode = new VNode(
+    `vue-component-${Ctor.cid}${name ? `-${name}` : ''}`,
+    data, undefined, undefined, undefined, context,
+    { Ctor, propsData, listeners, tag, children },
+    asyncFactory
+  );
+
+  return vnode
+}
+
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent, // activeInstance in lifecycle state
+) {
+  const options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent
+  };
+  // check inline-template render functions
+  const inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnode.componentOptions.Ctor(options)
+}
+
+function installComponentHooks (data) {
+  const hooks = data.hook || (data.hook = {});
+  for (let i = 0; i < hooksToMerge.length; i++) {
+    const key = hooksToMerge[i];
+    const existing = hooks[key];
+    const toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
+  }
+}
+
+function mergeHook$1 (f1, f2) {
+  const merged = (a, b) => {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  const prop = (options.model && options.model.prop) || 'value';
+  const event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  const on = data.on || (data.on = {});
+  const existing = on[event];
+  const callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
+  } else {
+    on[event] = callback;
+  }
+}
+
+/*  */
+
+const SIMPLE_NORMALIZE = 1;
+const ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      `Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  let vnode, ns;
+  if (typeof tag === 'string') {
+    let Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) applyNS(vnode, ns);
+    if (isDef(data)) registerDeepBindings(data);
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
+
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (let i = 0, l = vnode.children.length; i < l; i++) {
+      const child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
+}
+
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  const options = vm.$options;
+  const parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  const renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = (a, b, c, d) => createElement(vm, a, b, c, d, false);
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = (a, b, c, d) => createElement(vm, a, b, c, d, true);
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  const parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
+      !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, () => {
+      !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm);
+    }, true);
+  }
+}
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    const vm = this;
+    const { render, _parentVnode } = vm.$options;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    let vnode;
+    try {
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, `render`);
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, `renderError`);
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    }
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
+
+/*  */
+
+let uid$3 = 0;
+
+function initMixin (Vue) {
+  Vue.prototype._init = function (options) {
+    const vm = this;
+    // a uid
+    vm._uid = uid$3++;
+
+    let startTag, endTag;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      startTag = `vue-perf-start:${vm._uid}`;
+      endTag = `vue-perf-end:${vm._uid}`;
+      mark(startTag);
+    }
+
+    // a flag to avoid this being observed
+    vm._isVue = true;
+    // merge options
+    if (options && options._isComponent) {
+      // optimize internal component instantiation
+      // since dynamic options merging is pretty slow, and none of the
+      // internal component options needs special treatment.
+      initInternalComponent(vm, options);
+    } else {
+      vm.$options = mergeOptions(
+        resolveConstructorOptions(vm.constructor),
+        options || {},
+        vm
+      );
+    }
+    /* istanbul ignore else */
+    {
+      initProxy(vm);
+    }
+    // expose real self
+    vm._self = vm;
+    initLifecycle(vm);
+    initEvents(vm);
+    initRender(vm);
+    callHook(vm, 'beforeCreate');
+    initInjections(vm); // resolve injections before data/props
+    initState(vm);
+    initProvide(vm); // resolve provide after data/props
+    callHook(vm, 'created');
+
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      vm._name = formatComponentName(vm, false);
+      mark(endTag);
+      measure(`vue ${vm._name} init`, startTag, endTag);
+    }
+
+    if (vm.$options.el) {
+      vm.$mount(vm.$options.el);
+    }
+  };
+}
+
+function initInternalComponent (vm, options) {
+  const opts = vm.$options = Object.create(vm.constructor.options);
+  // doing this because it's faster than dynamic enumeration.
+  const parentVnode = options._parentVnode;
+  opts.parent = options.parent;
+  opts._parentVnode = parentVnode;
+
+  const vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
+  if (options.render) {
+    opts.render = options.render;
+    opts.staticRenderFns = options.staticRenderFns;
+  }
+}
+
+function resolveConstructorOptions (Ctor) {
+  let options = Ctor.options;
+  if (Ctor.super) {
+    const superOptions = resolveConstructorOptions(Ctor.super);
+    const cachedSuperOptions = Ctor.superOptions;
+    if (superOptions !== cachedSuperOptions) {
+      // super option changed,
+      // need to resolve new options.
+      Ctor.superOptions = superOptions;
+      // check if there are any late-modified/attached options (#4976)
+      const modifiedOptions = resolveModifiedOptions(Ctor);
+      // update base extend options
+      if (modifiedOptions) {
+        extend(Ctor.extendOptions, modifiedOptions);
+      }
+      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+      if (options.name) {
+        options.components[options.name] = Ctor;
+      }
+    }
+  }
+  return options
+}
+
+function resolveModifiedOptions (Ctor) {
+  let modified;
+  const latest = Ctor.options;
+  const sealed = Ctor.sealedOptions;
+  for (const key in latest) {
+    if (latest[key] !== sealed[key]) {
+      if (!modified) modified = {};
+      modified[key] = latest[key];
+    }
+  }
+  return modified
+}
+
+function Vue (options) {
+  if (!(this instanceof Vue)
+  ) {
+    warn('Vue is a constructor and should be called with the `new` keyword');
+  }
+  this._init(options);
+}
+
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
+
+/*  */
+
+function initUse (Vue) {
+  Vue.use = function (plugin) {
+    const installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
+    }
+
+    // additional parameters
+    const args = toArray(arguments, 1);
+    args.unshift(this);
+    if (typeof plugin.install === 'function') {
+      plugin.install.apply(plugin, args);
+    } else if (typeof plugin === 'function') {
+      plugin.apply(null, args);
+    }
+    installedPlugins.push(plugin);
+    return this
+  };
+}
+
+/*  */
+
+function initMixin$1 (Vue) {
+  Vue.mixin = function (mixin) {
+    this.options = mergeOptions(this.options, mixin);
+    return this
+  };
+}
+
+/*  */
+
+function initExtend (Vue) {
+  /**
+   * Each instance constructor, including Vue, has a unique
+   * cid. This enables us to create wrapped "child
+   * constructors" for prototypal inheritance and cache them.
+   */
+  Vue.cid = 0;
+  let cid = 1;
+
+  /**
+   * Class inheritance
+   */
+  Vue.extend = function (extendOptions) {
+    extendOptions = extendOptions || {};
+    const Super = this;
+    const SuperId = Super.cid;
+    const cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+    if (cachedCtors[SuperId]) {
+      return cachedCtors[SuperId]
+    }
+
+    const name = extendOptions.name || Super.options.name;
+    if (name) {
+      validateComponentName(name);
+    }
+
+    const Sub = function VueComponent (options) {
+      this._init(options);
+    };
+    Sub.prototype = Object.create(Super.prototype);
+    Sub.prototype.constructor = Sub;
+    Sub.cid = cid++;
+    Sub.options = mergeOptions(
+      Super.options,
+      extendOptions
+    );
+    Sub['super'] = Super;
+
+    // For props and computed properties, we define the proxy getters on
+    // the Vue instances at extension time, on the extended prototype. This
+    // avoids Object.defineProperty calls for each instance created.
+    if (Sub.options.props) {
+      initProps$1(Sub);
+    }
+    if (Sub.options.computed) {
+      initComputed$1(Sub);
+    }
+
+    // allow further extension/mixin/plugin usage
+    Sub.extend = Super.extend;
+    Sub.mixin = Super.mixin;
+    Sub.use = Super.use;
+
+    // create asset registers, so extended classes
+    // can have their private assets too.
+    ASSET_TYPES.forEach(function (type) {
+      Sub[type] = Super[type];
+    });
+    // enable recursive self-lookup
+    if (name) {
+      Sub.options.components[name] = Sub;
+    }
+
+    // keep a reference to the super options at extension time.
+    // later at instantiation we can check if Super's options have
+    // been updated.
+    Sub.superOptions = Super.options;
+    Sub.extendOptions = extendOptions;
+    Sub.sealedOptions = extend({}, Sub.options);
+
+    // cache constructor
+    cachedCtors[SuperId] = Sub;
+    return Sub
+  };
+}
+
+function initProps$1 (Comp) {
+  const props = Comp.options.props;
+  for (const key in props) {
+    proxy(Comp.prototype, `_props`, key);
+  }
+}
+
+function initComputed$1 (Comp) {
+  const computed = Comp.options.computed;
+  for (const key in computed) {
+    defineComputed(Comp.prototype, key, computed[key]);
+  }
+}
+
+/*  */
+
+function initAssetRegisters (Vue) {
+  /**
+   * Create asset registration methods.
+   */
+  ASSET_TYPES.forEach(type => {
+    Vue[type] = function (
+      id,
+      definition
+    ) {
+      if (!definition) {
+        return this.options[type + 's'][id]
+      } else {
+        /* istanbul ignore if */
+        if (type === 'component') {
+          validateComponentName(id);
+        }
+        if (type === 'component' && isPlainObject(definition)) {
+          definition.name = definition.name || id;
+          definition = this.options._base.extend(definition);
+        }
+        if (type === 'directive' && typeof definition === 'function') {
+          definition = { bind: definition, update: definition };
+        }
+        this.options[type + 's'][id] = definition;
+        return definition
+      }
+    };
+  });
+}
+
+/*  */
+
+
+
+function getComponentName (opts) {
+  return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
+    return pattern.split(',').indexOf(name) > -1
+  } else if (isRegExp(pattern)) {
+    return pattern.test(name)
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+  const { cache, keys, _vnode } = keepAliveInstance;
+  for (const key in cache) {
+    const cachedNode = cache[key];
+    if (cachedNode) {
+      const name = getComponentName(cachedNode.componentOptions);
+      if (name && !filter(name)) {
+        pruneCacheEntry(cache, key, keys, _vnode);
+      }
+    }
+  }
+}
+
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  const cached$$1 = cache[key];
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+    cached$$1.componentInstance.$destroy();
+  }
+  cache[key] = null;
+  remove(keys, key);
+}
+
+const patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+  name: 'keep-alive',
+  abstract: true,
+
+  props: {
+    include: patternTypes,
+    exclude: patternTypes,
+    max: [String, Number]
+  },
+
+  created () {
+    this.cache = Object.create(null);
+    this.keys = [];
+  },
+
+  destroyed () {
+    for (const key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
+    }
+  },
+
+  mounted () {
+    this.$watch('include', val => {
+      pruneCache(this, name => matches(val, name));
+    });
+    this.$watch('exclude', val => {
+      pruneCache(this, name => !matches(val, name));
+    });
+  },
+
+  render () {
+    const slot = this.$slots.default;
+    const vnode = getFirstComponentChild(slot);
+    const componentOptions = vnode && vnode.componentOptions;
+    if (componentOptions) {
+      // check pattern
+      const name = getComponentName(componentOptions);
+      const { include, exclude } = this;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
+        return vnode
+      }
+
+      const { cache, keys } = this;
+      const key = vnode.key == null
+        // same constructor may get registered as different local components
+        // so cid alone is not enough (#3269)
+        ? componentOptions.Ctor.cid + (componentOptions.tag ? `::${componentOptions.tag}` : '')
+        : vnode.key;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
+      } else {
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
+      }
+
+      vnode.data.keepAlive = true;
+    }
+    return vnode || (slot && slot[0])
+  }
+};
+
+var builtInComponents = {
+  KeepAlive
+};
+
+/*  */
+
+function initGlobalAPI (Vue) {
+  // config
+  const configDef = {};
+  configDef.get = () => config;
+  {
+    configDef.set = () => {
+      warn(
+        'Do not replace the Vue.config object, set individual fields instead.'
+      );
+    };
+  }
+  Object.defineProperty(Vue, 'config', configDef);
+
+  // exposed util methods.
+  // NOTE: these are not considered part of the public API - avoid relying on
+  // them unless you are aware of the risk.
+  Vue.util = {
+    warn,
+    extend,
+    mergeOptions,
+    defineReactive: defineReactive$$1
+  };
+
+  Vue.set = set;
+  Vue.delete = del;
+  Vue.nextTick = nextTick;
+
+  // 2.6 explicit observable API
+  Vue.observable = (obj) => {
+    observe(obj);
+    return obj
+  };
+
+  Vue.options = Object.create(null);
+  ASSET_TYPES.forEach(type => {
+    Vue.options[type + 's'] = Object.create(null);
+  });
+
+  // this is used to identify the "base" constructor to extend all plain-object
+  // components with in Weex's multi-instance scenarios.
+  Vue.options._base = Vue;
+
+  extend(Vue.options.components, builtInComponents);
+
+  initUse(Vue);
+  initMixin$1(Vue);
+  initExtend(Vue);
+  initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue);
+
+Object.defineProperty(Vue.prototype, '$isServer', {
+  get: isServerRendering
+});
+
+Object.defineProperty(Vue.prototype, '$ssrContext', {
+  get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.6.0-beta.2';
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+const isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+const acceptValue = makeMap('input,textarea,option,select,progress');
+const mustUseProp = (tag, type, attr) => {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+const isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+const xlinkNS = 'http://www.w3.org/1999/xlink';
+
+const isXlink = (name) => {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+const getXlinkProp = (name) => {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+const isFalsyAttrValue = (val) => {
+  return val == null || val === false
+};
+
+/*  */
+
+function genClassForVnode (vnode) {
+  let data = vnode.data;
+  let parentNode = vnode;
+  let childNode = vnode;
+  while (isDef(childNode.componentInstance)) {
+    childNode = childNode.componentInstance._vnode;
+    if (childNode && childNode.data) {
+      data = mergeClassData(childNode.data, data);
+    }
+  }
+  while (isDef(parentNode = parentNode.parent)) {
+    if (parentNode && parentNode.data) {
+      data = mergeClassData(data, parentNode.data);
+    }
+  }
+  return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+  return {
+    staticClass: concat(child.staticClass, parent.staticClass),
+    class: isDef(child.class)
+      ? [child.class, parent.class]
+      : parent.class
+  }
+}
+
+function renderClass (
+  staticClass,
+  dynamicClass
+) {
+  if (isDef(staticClass) || isDef(dynamicClass)) {
+    return concat(staticClass, stringifyClass(dynamicClass))
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function concat (a, b) {
+  return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+  if (Array.isArray(value)) {
+    return stringifyArray(value)
+  }
+  if (isObject(value)) {
+    return stringifyObject(value)
+  }
+  if (typeof value === 'string') {
+    return value
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function stringifyArray (value) {
+  let res = '';
+  let stringified;
+  for (let i = 0, l = value.length; i < l; i++) {
+    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+      if (res) res += ' ';
+      res += stringified;
+    }
+  }
+  return res
+}
+
+function stringifyObject (value) {
+  let res = '';
+  for (const key in value) {
+    if (value[key]) {
+      if (res) res += ' ';
+      res += key;
+    }
+  }
+  return res
+}
+
+/*  */
+
+const namespaceMap = {
+  svg: 'http://www.w3.org/2000/svg',
+  math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+const isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+const isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+const isPreTag = (tag) => tag === 'pre';
+
+const isReservedTag = (tag) => {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+const unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+  /* istanbul ignore if */
+  if (!inBrowser) {
+    return true
+  }
+  if (isReservedTag(tag)) {
+    return false
+  }
+  tag = tag.toLowerCase();
+  /* istanbul ignore if */
+  if (unknownElementCache[tag] != null) {
+    return unknownElementCache[tag]
+  }
+  const el = document.createElement(tag);
+  if (tag.indexOf('-') > -1) {
+    // http://stackoverflow.com/a/28210364/1070244
+    return (unknownElementCache[tag] = (
+      el.constructor === window.HTMLUnknownElement ||
+      el.constructor === window.HTMLElement
+    ))
+  } else {
+    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+  }
+}
+
+const isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+  if (typeof el === 'string') {
+    const selected = document.querySelector(el);
+    if (!selected) {
+      warn(
+        'Cannot find element: ' + el
+      );
+      return document.createElement('div')
+    }
+    return selected
+  } else {
+    return el
+  }
+}
+
+/*  */
+
+function createElement$1 (tagName, vnode) {
+  const elm = document.createElement(tagName);
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple');
+  }
+  return elm
+}
+
+function createElementNS (namespace, tagName) {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+  return document.createTextNode(text)
+}
+
+function createComment (text) {
+  return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+  parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+  node.removeChild(child);
+}
+
+function appendChild (node, child) {
+  node.appendChild(child);
+}
+
+function parentNode (node) {
+  return node.parentNode
+}
+
+function nextSibling (node) {
+  return node.nextSibling
+}
+
+function tagName (node) {
+  return node.tagName
+}
+
+function setTextContent (node, text) {
+  node.textContent = text;
+}
+
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
+}
+
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
+});
+
+/*  */
+
+var ref = {
+  create (_, vnode) {
+    registerRef(vnode);
+  },
+  update (oldVnode, vnode) {
+    if (oldVnode.data.ref !== vnode.data.ref) {
+      registerRef(oldVnode, true);
+      registerRef(vnode);
+    }
+  },
+  destroy (vnode) {
+    registerRef(vnode, true);
+  }
+};
+
+function registerRef (vnode, isRemoval) {
+  const key = vnode.data.ref;
+  if (!isDef(key)) return
+
+  const vm = vnode.context;
+  const ref = vnode.componentInstance || vnode.elm;
+  const refs = vm.$refs;
+  if (isRemoval) {
+    if (Array.isArray(refs[key])) {
+      remove(refs[key], ref);
+    } else if (refs[key] === ref) {
+      refs[key] = undefined;
+    }
+  } else {
+    if (vnode.data.refInFor) {
+      if (!Array.isArray(refs[key])) {
+        refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
+      }
+    } else {
+      refs[key] = ref;
+    }
+  }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+const emptyNode = new VNode('', {}, []);
+
+const hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function sameVnode (a, b) {
+  return (
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
+  )
+}
+
+function sameInputType (a, b) {
+  if (a.tag !== 'input') return true
+  let i;
+  const typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+  const typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+  let i, key;
+  const map = {};
+  for (i = beginIdx; i <= endIdx; ++i) {
+    key = children[i].key;
+    if (isDef(key)) map[key] = i;
+  }
+  return map
+}
+
+function createPatchFunction (backend) {
+  let i, j;
+  const cbs = {};
+
+  const { modules, nodeOps } = backend;
+
+  for (i = 0; i < hooks.length; ++i) {
+    cbs[hooks[i]] = [];
+    for (j = 0; j < modules.length; ++j) {
+      if (isDef(modules[j][hooks[i]])) {
+        cbs[hooks[i]].push(modules[j][hooks[i]]);
+      }
+    }
+  }
+
+  function emptyNodeAt (elm) {
+    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+  }
+
+  function createRmCb (childElm, listeners) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
+        removeNode(childElm);
+      }
+    }
+    remove$$1.listeners = listeners;
+    return remove$$1
+  }
+
+  function removeNode (el) {
+    const parent = nodeOps.parentNode(el);
+    // element may have already been removed due to v-html / v-text
+    if (isDef(parent)) {
+      nodeOps.removeChild(parent, el);
+    }
+  }
+
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(ignore => {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  let creatingElmInVPre = 0;
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    vnode.isRootInsert = !nested; // for transition enter check
+    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+      return
+    }
+
+    const data = vnode.data;
+    const children = vnode.children;
+    const tag = vnode.tag;
+    if (isDef(tag)) {
+      {
+        if (data && data.pre) {
+          creatingElmInVPre++;
+        }
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+          warn(
+            'Unknown custom element: <' + tag + '> - did you ' +
+            'register the component correctly? For recursive components, ' +
+            'make sure to provide the "name" option.',
+            vnode.context
+          );
+        }
+      }
+
+      vnode.elm = vnode.ns
+        ? nodeOps.createElementNS(vnode.ns, tag)
+        : nodeOps.createElement(tag, vnode);
+      setScope(vnode);
+
+      /* istanbul ignore if */
+      {
+        createChildren(vnode, children, insertedVnodeQueue);
+        if (isDef(data)) {
+          invokeCreateHooks(vnode, insertedVnodeQueue);
+        }
+        insert(parentElm, vnode.elm, refElm);
+      }
+
+      if (data && data.pre) {
+        creatingElmInVPre--;
+      }
+    } else if (isTrue(vnode.isComment)) {
+      vnode.elm = nodeOps.createComment(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    } else {
+      vnode.elm = nodeOps.createTextNode(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    }
+  }
+
+  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    let i = vnode.data;
+    if (isDef(i)) {
+      const isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+      if (isDef(i = i.hook) && isDef(i = i.init)) {
+        i(vnode, false /* hydrating */);
+      }
+      // after calling the init hook, if the vnode is a child component
+      // it should've created a child instance and mounted it. the child
+      // component also has set the placeholder vnode's elm.
+      // in that case we can just return the element and be done.
+      if (isDef(vnode.componentInstance)) {
+        initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
+        if (isTrue(isReactivated)) {
+          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+        }
+        return true
+      }
+    }
+  }
+
+  function initComponent (vnode, insertedVnodeQueue) {
+    if (isDef(vnode.data.pendingInsert)) {
+      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
+    }
+    vnode.elm = vnode.componentInstance.$el;
+    if (isPatchable(vnode)) {
+      invokeCreateHooks(vnode, insertedVnodeQueue);
+      setScope(vnode);
+    } else {
+      // empty component root.
+      // skip all element-related modules except for ref (#3455)
+      registerRef(vnode);
+      // make sure to invoke the insert hook
+      insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    let i;
+    // hack for #4339: a reactivated component with inner transition
+    // does not trigger because the inner node's created hooks are not called
+    // again. It's not ideal to involve module-specific logic in here but
+    // there doesn't seem to be a better way to do it.
+    let innerNode = vnode;
+    while (innerNode.componentInstance) {
+      innerNode = innerNode.componentInstance._vnode;
+      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+        for (i = 0; i < cbs.activate.length; ++i) {
+          cbs.activate[i](emptyNode, innerNode);
+        }
+        insertedVnodeQueue.push(innerNode);
+        break
+      }
+    }
+    // unlike a newly created component,
+    // a reactivated keep-alive component doesn't insert itself
+    insert(parentElm, vnode.elm, refElm);
+  }
+
+  function insert (parent, elm, ref$$1) {
+    if (isDef(parent)) {
+      if (isDef(ref$$1)) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
+        }
+      } else {
+        nodeOps.appendChild(parent, elm);
+      }
+    }
+  }
+
+  function createChildren (vnode, children, insertedVnodeQueue) {
+    if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
+      for (let i = 0; i < children.length; ++i) {
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+      }
+    } else if (isPrimitive(vnode.text)) {
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+    }
+  }
+
+  function isPatchable (vnode) {
+    while (vnode.componentInstance) {
+      vnode = vnode.componentInstance._vnode;
+    }
+    return isDef(vnode.tag)
+  }
+
+  function invokeCreateHooks (vnode, insertedVnodeQueue) {
+    for (let i = 0; i < cbs.create.length; ++i) {
+      cbs.create[i](emptyNode, vnode);
+    }
+    i = vnode.data.hook; // Reuse variable
+    if (isDef(i)) {
+      if (isDef(i.create)) i.create(emptyNode, vnode);
+      if (isDef(i.insert)) insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  // set scope id attribute for scoped CSS.
+  // this is implemented as a special case to avoid the overhead
+  // of going through the normal attribute patching process.
+  function setScope (vnode) {
+    let i;
+    if (isDef(i = vnode.fnScopeId)) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    } else {
+      let ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setStyleScope(vnode.elm, i);
+        }
+        ancestor = ancestor.parent;
+      }
+    }
+    // for slot content they should also get the scopeId from the host instance.
+    if (isDef(i = activeInstance) &&
+      i !== vnode.context &&
+      i !== vnode.fnContext &&
+      isDef(i = i.$options._scopeId)
+    ) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    }
+  }
+
+  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
+    }
+  }
+
+  function invokeDestroyHook (vnode) {
+    let i, j;
+    const data = vnode.data;
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.destroy)) i(vnode);
+      for (i = 0; i < cbs.destroy.length; ++i) cbs.destroy[i](vnode);
+    }
+    if (isDef(i = vnode.children)) {
+      for (j = 0; j < vnode.children.length; ++j) {
+        invokeDestroyHook(vnode.children[j]);
+      }
+    }
+  }
+
+  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      const ch = vnodes[startIdx];
+      if (isDef(ch)) {
+        if (isDef(ch.tag)) {
+          removeAndInvokeRemoveHook(ch);
+          invokeDestroyHook(ch);
+        } else { // Text node
+          removeNode(ch.elm);
+        }
+      }
+    }
+  }
+
+  function removeAndInvokeRemoveHook (vnode, rm) {
+    if (isDef(rm) || isDef(vnode.data)) {
+      let i;
+      const listeners = cbs.remove.length + 1;
+      if (isDef(rm)) {
+        // we have a recursively passed down rm callback
+        // increase the listeners count
+        rm.listeners += listeners;
+      } else {
+        // directly removing
+        rm = createRmCb(vnode.elm, listeners);
+      }
+      // recursively invoke hooks on child component root node
+      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+        removeAndInvokeRemoveHook(i, rm);
+      }
+      for (i = 0; i < cbs.remove.length; ++i) {
+        cbs.remove[i](vnode, rm);
+      }
+      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+        i(vnode, rm);
+      } else {
+        rm();
+      }
+    } else {
+      removeNode(vnode.elm);
+    }
+  }
+
+  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+    let oldStartIdx = 0;
+    let newStartIdx = 0;
+    let oldEndIdx = oldCh.length - 1;
+    let oldStartVnode = oldCh[0];
+    let oldEndVnode = oldCh[oldEndIdx];
+    let newEndIdx = newCh.length - 1;
+    let newStartVnode = newCh[0];
+    let newEndVnode = newCh[newEndIdx];
+    let oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+    // removeOnly is a special flag used only by <transition-group>
+    // to ensure removed elements stay in correct relative positions
+    // during leaving transitions
+    const canMove = !removeOnly;
+
+    {
+      checkDuplicateKeys(newCh);
+    }
+
+    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+      if (isUndef(oldStartVnode)) {
+        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+      } else if (isUndef(oldEndVnode)) {
+        oldEndVnode = oldCh[--oldEndIdx];
+      } else if (sameVnode(oldStartVnode, newStartVnode)) {
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        oldStartVnode = oldCh[++oldStartIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else if (sameVnode(oldEndVnode, newEndVnode)) {
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+        oldStartVnode = oldCh[++oldStartIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else {
+        if (isUndef(oldKeyToIdx)) oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+        if (isUndef(idxInOld)) { // New element
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+        } else {
+          vnodeToMove = oldCh[idxInOld];
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+            oldCh[idxInOld] = undefined;
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+          } else {
+            // same key but different element. treat as new element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          }
+        }
+        newStartVnode = newCh[++newStartIdx];
+      }
+    }
+    if (oldStartIdx > oldEndIdx) {
+      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+    } else if (newStartIdx > newEndIdx) {
+      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    }
+  }
+
+  function checkDuplicateKeys (children) {
+    const seenKeys = {};
+    for (let i = 0; i < children.length; i++) {
+      const vnode = children[i];
+      const key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            `Duplicate keys detected: '${key}'. This may cause an update error.`,
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
+  function findIdxInOld (node, oldCh, start, end) {
+    for (let i = start; i < end; i++) {
+      const c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) return i
+    }
+  }
+
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
+    if (oldVnode === vnode) {
+      return
+    }
+
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    const elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
+    // reuse element for static trees.
+    // note we only do this if the vnode is cloned -
+    // if the new node is not cloned it means the render functions have been
+    // reset by the hot-reload-api and we need to do a proper re-render.
+    if (isTrue(vnode.isStatic) &&
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
+      vnode.componentInstance = oldVnode.componentInstance;
+      return
+    }
+
+    let i;
+    const data = vnode.data;
+    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+      i(oldVnode, vnode);
+    }
+
+    const oldCh = oldVnode.children;
+    const ch = vnode.children;
+    if (isDef(data) && isPatchable(vnode)) {
+      for (i = 0; i < cbs.update.length; ++i) cbs.update[i](oldVnode, vnode);
+      if (isDef(i = data.hook) && isDef(i = i.update)) i(oldVnode, vnode);
+    }
+    if (isUndef(vnode.text)) {
+      if (isDef(oldCh) && isDef(ch)) {
+        if (oldCh !== ch) updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly);
+      } else if (isDef(ch)) {
+        {
+          checkDuplicateKeys(ch);
+        }
+        if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '');
+        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+      } else if (isDef(oldCh)) {
+        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+      } else if (isDef(oldVnode.text)) {
+        nodeOps.setTextContent(elm, '');
+      }
+    } else if (oldVnode.text !== vnode.text) {
+      nodeOps.setTextContent(elm, vnode.text);
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.postpatch)) i(oldVnode, vnode);
+    }
+  }
+
+  function invokeInsertHook (vnode, queue, initial) {
+    // delay insert hooks for component root nodes, invoke them after the
+    // element is really inserted
+    if (isTrue(initial) && isDef(vnode.parent)) {
+      vnode.parent.data.pendingInsert = queue;
+    } else {
+      for (let i = 0; i < queue.length; ++i) {
+        queue[i].data.hook.insert(queue[i]);
+      }
+    }
+  }
+
+  let hydrationBailed = false;
+  // list of modules that can skip create hook during hydration because they
+  // are already rendered on the client or has no need for initialization
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  const isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+  // Note: this is a browser-only function so we can assume elms are DOM nodes.
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    let i;
+    const { tag, data, children } = vnode;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
+    // assert node match
+    {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
+        return false
+      }
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.init)) i(vnode, true /* hydrating */);
+      if (isDef(i = vnode.componentInstance)) {
+        // child component. it should have hydrated its own tree.
+        initComponent(vnode, insertedVnodeQueue);
+        return true
+      }
+    }
+    if (isDef(tag)) {
+      if (isDef(children)) {
+        // empty element, allow client to pick up and populate children
+        if (!elm.hasChildNodes()) {
+          createChildren(vnode, children, insertedVnodeQueue);
+        } else {
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
+            }
+          } else {
+            // iterate and compare children lists
+            let childrenMatch = true;
+            let childNode = elm.firstChild;
+            for (let i = 0; i < children.length; i++) {
+              if (!childNode || !hydrate(childNode, children[i], insertedVnodeQueue, inVPre)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
+            }
+          }
+        }
+      }
+      if (isDef(data)) {
+        let fullInvoke = false;
+        for (const key in data) {
+          if (!isRenderedModule(key)) {
+            fullInvoke = true;
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+            break
+          }
+        }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
+      }
+    } else if (elm.data !== vnode.text) {
+      elm.data = vnode.text;
+    }
+    return true
+  }
+
+  function assertNodeMatch (node, vnode, inVPre) {
+    if (isDef(vnode.tag)) {
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
+        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+      )
+    } else {
+      return node.nodeType === (vnode.isComment ? 8 : 3)
+    }
+  }
+
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
+    if (isUndef(vnode)) {
+      if (isDef(oldVnode)) invokeDestroyHook(oldVnode);
+      return
+    }
+
+    let isInitialPatch = false;
+    const insertedVnodeQueue = [];
+
+    if (isUndef(oldVnode)) {
+      // empty mount (likely as component), create new root element
+      isInitialPatch = true;
+      createElm(vnode, insertedVnodeQueue);
+    } else {
+      const isRealElement = isDef(oldVnode.nodeType);
+      if (!isRealElement && sameVnode(oldVnode, vnode)) {
+        // patch existing root node
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
+      } else {
+        if (isRealElement) {
+          // mounting to a real element
+          // check if this is server-rendered content and if we can perform
+          // a successful hydration.
+          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+            oldVnode.removeAttribute(SSR_ATTR);
+            hydrating = true;
+          }
+          if (isTrue(hydrating)) {
+            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+              invokeInsertHook(vnode, insertedVnodeQueue, true);
+              return oldVnode
+            } else {
+              warn(
+                'The client-side rendered virtual DOM tree is not matching ' +
+                'server-rendered content. This is likely caused by incorrect ' +
+                'HTML markup, for example nesting block-level elements inside ' +
+                '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                'full client-side render.'
+              );
+            }
+          }
+          // either not server-rendered, or hydration failed.
+          // create an empty node and replace it
+          oldVnode = emptyNodeAt(oldVnode);
+        }
+
+        // replacing existing element
+        const oldElm = oldVnode.elm;
+        const parentElm = nodeOps.parentNode(oldElm);
+
+        // create new node
+        createElm(
+          vnode,
+          insertedVnodeQueue,
+          // extremely rare edge case: do not insert if old element is in a
+          // leaving transition. Only happens when combining transition +
+          // keep-alive + HOCs. (#4590)
+          oldElm._leaveCb ? null : parentElm,
+          nodeOps.nextSibling(oldElm)
+        );
+
+        // update parent placeholder node element, recursively
+        if (isDef(vnode.parent)) {
+          let ancestor = vnode.parent;
+          const patchable = isPatchable(vnode);
+          while (ancestor) {
+            for (let i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
+            ancestor.elm = vnode.elm;
+            if (patchable) {
+              for (let i = 0; i < cbs.create.length; ++i) {
+                cbs.create[i](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              const insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (let i = 1; i < insert.fns.length; i++) {
+                  insert.fns[i]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
+            }
+            ancestor = ancestor.parent;
+          }
+        }
+
+        // destroy old node
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
+        } else if (isDef(oldVnode.tag)) {
+          invokeDestroyHook(oldVnode);
+        }
+      }
+    }
+
+    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+    return vnode.elm
+  }
+}
+
+/*  */
+
+var directives = {
+  create: updateDirectives,
+  update: updateDirectives,
+  destroy: function unbindDirectives (vnode) {
+    updateDirectives(vnode, emptyNode);
+  }
+};
+
+function updateDirectives (oldVnode, vnode) {
+  if (oldVnode.data.directives || vnode.data.directives) {
+    _update(oldVnode, vnode);
+  }
+}
+
+function _update (oldVnode, vnode) {
+  const isCreate = oldVnode === emptyNode;
+  const isDestroy = vnode === emptyNode;
+  const oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+  const newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+  const dirsWithInsert = [];
+  const dirsWithPostpatch = [];
+
+  let key, oldDir, dir;
+  for (key in newDirs) {
+    oldDir = oldDirs[key];
+    dir = newDirs[key];
+    if (!oldDir) {
+      // new directive, bind
+      callHook$1(dir, 'bind', vnode, oldVnode);
+      if (dir.def && dir.def.inserted) {
+        dirsWithInsert.push(dir);
+      }
+    } else {
+      // existing directive, update
+      dir.oldValue = oldDir.value;
+      dir.oldArg = oldDir.arg;
+      callHook$1(dir, 'update', vnode, oldVnode);
+      if (dir.def && dir.def.componentUpdated) {
+        dirsWithPostpatch.push(dir);
+      }
+    }
+  }
+
+  if (dirsWithInsert.length) {
+    const callInsert = () => {
+      for (let i = 0; i < dirsWithInsert.length; i++) {
+        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+      }
+    };
+    if (isCreate) {
+      mergeVNodeHook(vnode, 'insert', callInsert);
+    } else {
+      callInsert();
+    }
+  }
+
+  if (dirsWithPostpatch.length) {
+    mergeVNodeHook(vnode, 'postpatch', () => {
+      for (let i = 0; i < dirsWithPostpatch.length; i++) {
+        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+      }
+    });
+  }
+
+  if (!isCreate) {
+    for (key in oldDirs) {
+      if (!newDirs[key]) {
+        // no longer present, unbind
+        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+      }
+    }
+  }
+}
+
+const emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+  dirs,
+  vm
+) {
+  const res = Object.create(null);
+  if (!dirs) {
+    // $flow-disable-line
+    return res
+  }
+  let i, dir;
+  for (i = 0; i < dirs.length; i++) {
+    dir = dirs[i];
+    if (!dir.modifiers) {
+      // $flow-disable-line
+      dir.modifiers = emptyModifiers;
+    }
+    res[getRawDirName(dir)] = dir;
+    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+  }
+  // $flow-disable-line
+  return res
+}
+
+function getRawDirName (dir) {
+  return dir.rawName || `${dir.name}.${Object.keys(dir.modifiers || {}).join('.')}`
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+  const fn = dir.def && dir.def[hook];
+  if (fn) {
+    try {
+      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+    } catch (e) {
+      handleError(e, vnode.context, `directive ${dir.name} ${hook} hook`);
+    }
+  }
+}
+
+var baseModules = [
+  ref,
+  directives
+];
+
+/*  */
+
+function updateAttrs (oldVnode, vnode) {
+  const opts = vnode.componentOptions;
+  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+    return
+  }
+  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+    return
+  }
+  let key, cur, old;
+  const elm = vnode.elm;
+  const oldAttrs = oldVnode.data.attrs || {};
+  let attrs = vnode.data.attrs || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(attrs.__ob__)) {
+    attrs = vnode.data.attrs = extend({}, attrs);
+  }
+
+  for (key in attrs) {
+    cur = attrs[key];
+    old = oldAttrs[key];
+    if (old !== cur) {
+      setAttr(elm, key, cur);
+    }
+  }
+  // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
+  /* istanbul ignore if */
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+    setAttr(elm, 'value', attrs.value);
+  }
+  for (key in oldAttrs) {
+    if (isUndef(attrs[key])) {
+      if (isXlink(key)) {
+        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else if (!isEnumeratedAttr(key)) {
+        elm.removeAttribute(key);
+      }
+    }
+  }
+}
+
+function setAttr (el, key, value) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
+    // set attribute for blank value
+    // e.g. <option disabled>Select one</option>
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
+    }
+  } else if (isEnumeratedAttr(key)) {
+    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+  } else if (isXlink(key)) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+    } else {
+      el.setAttributeNS(xlinkNS, key, value);
+    }
+  } else {
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      const blocker = e => {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
+    }
+    el.setAttribute(key, value);
+  }
+}
+
+var attrs = {
+  create: updateAttrs,
+  update: updateAttrs
+};
+
+/*  */
+
+function updateClass (oldVnode, vnode) {
+  const el = vnode.elm;
+  const data = vnode.data;
+  const oldData = oldVnode.data;
+  if (
+    isUndef(data.staticClass) &&
+    isUndef(data.class) && (
+      isUndef(oldData) || (
+        isUndef(oldData.staticClass) &&
+        isUndef(oldData.class)
+      )
+    )
+  ) {
+    return
+  }
+
+  let cls = genClassForVnode(vnode);
+
+  // handle transition classes
+  const transitionClass = el._transitionClasses;
+  if (isDef(transitionClass)) {
+    cls = concat(cls, stringifyClass(transitionClass));
+  }
+
+  // set the class
+  if (cls !== el._prevClass) {
+    el.setAttribute('class', cls);
+    el._prevClass = cls;
+  }
+}
+
+var klass = {
+  create: updateClass,
+  update: updateClass
+};
+
+/*  */
+
+const validDivisionCharRE = /[\w).+\-_$\]]/;
+
+function parseFilters (exp) {
+  let inSingle = false;
+  let inDouble = false;
+  let inTemplateString = false;
+  let inRegex = false;
+  let curly = 0;
+  let square = 0;
+  let paren = 0;
+  let lastFilterIndex = 0;
+  let c, prev, i, expression, filters;
+
+  for (i = 0; i < exp.length; i++) {
+    prev = c;
+    c = exp.charCodeAt(i);
+    if (inSingle) {
+      if (c === 0x27 && prev !== 0x5C) inSingle = false;
+    } else if (inDouble) {
+      if (c === 0x22 && prev !== 0x5C) inDouble = false;
+    } else if (inTemplateString) {
+      if (c === 0x60 && prev !== 0x5C) inTemplateString = false;
+    } else if (inRegex) {
+      if (c === 0x2f && prev !== 0x5C) inRegex = false;
+    } else if (
+      c === 0x7C && // pipe
+      exp.charCodeAt(i + 1) !== 0x7C &&
+      exp.charCodeAt(i - 1) !== 0x7C &&
+      !curly && !square && !paren
+    ) {
+      if (expression === undefined) {
+        // first filter, end of expression
+        lastFilterIndex = i + 1;
+        expression = exp.slice(0, i).trim();
+      } else {
+        pushFilter();
+      }
+    } else {
+      switch (c) {
+        case 0x22: inDouble = true; break         // "
+        case 0x27: inSingle = true; break         // '
+        case 0x60: inTemplateString = true; break // `
+        case 0x28: paren++; break                 // (
+        case 0x29: paren--; break                 // )
+        case 0x5B: square++; break                // [
+        case 0x5D: square--; break                // ]
+        case 0x7B: curly++; break                 // {
+        case 0x7D: curly--; break                 // }
+      }
+      if (c === 0x2f) { // /
+        let j = i - 1;
+        let p;
+        // find first non-whitespace prev char
+        for (; j >= 0; j--) {
+          p = exp.charAt(j);
+          if (p !== ' ') break
+        }
+        if (!p || !validDivisionCharRE.test(p)) {
+          inRegex = true;
+        }
+      }
+    }
+  }
+
+  if (expression === undefined) {
+    expression = exp.slice(0, i).trim();
+  } else if (lastFilterIndex !== 0) {
+    pushFilter();
+  }
+
+  function pushFilter () {
+    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
+    lastFilterIndex = i + 1;
+  }
+
+  if (filters) {
+    for (i = 0; i < filters.length; i++) {
+      expression = wrapFilter(expression, filters[i]);
+    }
+  }
+
+  return expression
+}
+
+function wrapFilter (exp, filter) {
+  const i = filter.indexOf('(');
+  if (i < 0) {
+    // _f: resolveFilter
+    return `_f("${filter}")(${exp})`
+  } else {
+    const name = filter.slice(0, i);
+    const args = filter.slice(i + 1);
+    return `_f("${name}")(${exp}${args !== ')' ? ',' + args : args}`
+  }
+}
+
+/*  */
+
+
+
+/* eslint-disable no-unused-vars */
+function baseWarn (msg, range) {
+  console.error(`[Vue compiler]: ${msg}`);
+}
+/* eslint-enable no-unused-vars */
+
+function pluckModuleFunction (
+  modules,
+  key
+) {
+  return modules
+    ? modules.map(m => m[key]).filter(_ => _)
+    : []
+}
+
+function addProp (el, name, value, range, dynamic) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name, value, dynamic }, range));
+  el.plain = false;
+}
+
+function addAttr (el, name, value, range, dynamic) {
+  const attrs = dynamic
+    ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+    : (el.attrs || (el.attrs = []));
+  attrs.push(rangeSetItem({ name, value, dynamic }, range));
+  el.plain = false;
+}
+
+// add a raw attr (use this in preTransforms)
+function addRawAttr (el, name, value, range) {
+  el.attrsMap[name] = value;
+  el.attrsList.push(rangeSetItem({ name, value }, range));
+}
+
+function addDirective (
+  el,
+  name,
+  rawName,
+  value,
+  arg,
+  isDynamicArg,
+  modifiers,
+  range
+) {
+  (el.directives || (el.directives = [])).push(rangeSetItem({
+    name,
+    rawName,
+    value,
+    arg,
+    isDynamicArg,
+    modifiers
+  }, range));
+  el.plain = false;
+}
+
+function prependModifierMarker (symbol, name, dynamic) {
+  return dynamic
+    ? `_p(${name},"${symbol}")`
+    : symbol + name // mark the event as captured
+}
+
+function addHandler (
+  el,
+  name,
+  value,
+  modifiers,
+  important,
+  warn,
+  range,
+  dynamic
+) {
+  modifiers = modifiers || emptyObject;
+  // warn prevent and passive modifier
+  /* istanbul ignore if */
+  if (
+    warn &&
+    modifiers.prevent && modifiers.passive
+  ) {
+    warn(
+      'passive and prevent can\'t be used together. ' +
+      'Passive handler can\'t prevent default event.',
+      range
+    );
+  }
+
+  // normalize click.right and click.middle since they don't actually fire
+  // this is technically browser-specific, but at least for now browsers are
+  // the only target envs that have right/middle clicks.
+  if (modifiers.right) {
+    if (dynamic) {
+      name = `(${name})==='click'?'contextmenu':(${name})`;
+    } else if (name === 'click') {
+      name = 'contextmenu';
+      delete modifiers.right;
+    }
+  } else if (modifiers.middle) {
+    if (dynamic) {
+      name = `(${name})==='click'?'mouseup':(${name})`;
+    } else if (name === 'click') {
+      name = 'mouseup';
+    }
+  }
+
+  // check capture modifier
+  if (modifiers.capture) {
+    delete modifiers.capture;
+    name = prependModifierMarker('!', name, dynamic);
+  }
+  if (modifiers.once) {
+    delete modifiers.once;
+    name = prependModifierMarker('~', name, dynamic);
+  }
+  /* istanbul ignore if */
+  if (modifiers.passive) {
+    delete modifiers.passive;
+    name = prependModifierMarker('&', name, dynamic);
+  }
+
+  let events;
+  if (modifiers.native) {
+    delete modifiers.native;
+    events = el.nativeEvents || (el.nativeEvents = {});
+  } else {
+    events = el.events || (el.events = {});
+  }
+
+  const newHandler = rangeSetItem({ value: value.trim(), dynamic }, range);
+  if (modifiers !== emptyObject) {
+    newHandler.modifiers = modifiers;
+  }
+
+  const handlers = events[name];
+  /* istanbul ignore if */
+  if (Array.isArray(handlers)) {
+    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
+  } else if (handlers) {
+    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
+  } else {
+    events[name] = newHandler;
+  }
+
+  el.plain = false;
+}
+
+function getRawBindingAttr (
+  el,
+  name
+) {
+  return el.rawAttrsMap[':' + name] ||
+    el.rawAttrsMap['v-bind:' + name] ||
+    el.rawAttrsMap[name]
+}
+
+function getBindingAttr (
+  el,
+  name,
+  getStatic
+) {
+  const dynamicValue =
+    getAndRemoveAttr(el, ':' + name) ||
+    getAndRemoveAttr(el, 'v-bind:' + name);
+  if (dynamicValue != null) {
+    return parseFilters(dynamicValue)
+  } else if (getStatic !== false) {
+    const staticValue = getAndRemoveAttr(el, name);
+    if (staticValue != null) {
+      return JSON.stringify(staticValue)
+    }
+  }
+}
+
+// note: this only removes the attr from the Array (attrsList) so that it
+// doesn't get processed by processAttrs.
+// By default it does NOT remove it from the map (attrsMap) because the map is
+// needed during codegen.
+function getAndRemoveAttr (
+  el,
+  name,
+  removeFromMap
+) {
+  let val;
+  if ((val = el.attrsMap[name]) != null) {
+    const list = el.attrsList;
+    for (let i = 0, l = list.length; i < l; i++) {
+      if (list[i].name === name) {
+        list.splice(i, 1);
+        break
+      }
+    }
+  }
+  if (removeFromMap) {
+    delete el.attrsMap[name];
+  }
+  return val
+}
+
+function getAndRemoveAttrByRegex (
+  el,
+  name
+) {
+  const list = el.attrsList;
+  for (let i = 0, l = list.length; i < l; i++) {
+    const attr = list[i];
+    if (name.test(attr.name)) {
+      list.splice(i, 1);
+      return attr
+    }
+  }
+}
+
+function rangeSetItem (
+  item,
+  range
+) {
+  if (range) {
+    if (range.start != null) {
+      item.start = range.start;
+    }
+    if (range.end != null) {
+      item.end = range.end;
+    }
+  }
+  return item
+}
+
+/*  */
+
+/**
+ * Cross-platform code generation for component v-model
+ */
+function genComponentModel (
+  el,
+  value,
+  modifiers
+) {
+  const { number, trim } = modifiers || {};
+
+  const baseValueExpression = '$$v';
+  let valueExpression = baseValueExpression;
+  if (trim) {
+    valueExpression =
+      `(typeof ${baseValueExpression} === 'string'` +
+      `? ${baseValueExpression}.trim()` +
+      `: ${baseValueExpression})`;
+  }
+  if (number) {
+    valueExpression = `_n(${valueExpression})`;
+  }
+  const assignment = genAssignmentCode(value, valueExpression);
+
+  el.model = {
+    value: `(${value})`,
+    expression: JSON.stringify(value),
+    callback: `function (${baseValueExpression}) {${assignment}}`
+  };
+}
+
+/**
+ * Cross-platform codegen helper for generating v-model value assignment code.
+ */
+function genAssignmentCode (
+  value,
+  assignment
+) {
+  const res = parseModel(value);
+  if (res.key === null) {
+    return `${value}=${assignment}`
+  } else {
+    return `$set(${res.exp}, ${res.key}, ${assignment})`
+  }
+}
+
+/**
+ * Parse a v-model expression into a base path and a final key segment.
+ * Handles both dot-path and possible square brackets.
+ *
+ * Possible cases:
+ *
+ * - test
+ * - test[key]
+ * - test[test1[key]]
+ * - test["a"][key]
+ * - xxx.test[a[a].test1[key]]
+ * - test.xxx.a["asa"][test1[key]]
+ *
+ */
+
+let len, str, chr, index$1, expressionPos, expressionEndPos;
+
+
+
+function parseModel (val) {
+  // Fix https://github.com/vuejs/vue/pull/7730
+  // allow v-model="obj.val " (trailing whitespace)
+  val = val.trim();
+  len = val.length;
+
+  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
+    index$1 = val.lastIndexOf('.');
+    if (index$1 > -1) {
+      return {
+        exp: val.slice(0, index$1),
+        key: '"' + val.slice(index$1 + 1) + '"'
+      }
+    } else {
+      return {
+        exp: val,
+        key: null
+      }
+    }
+  }
+
+  str = val;
+  index$1 = expressionPos = expressionEndPos = 0;
+
+  while (!eof()) {
+    chr = next();
+    /* istanbul ignore if */
+    if (isStringStart(chr)) {
+      parseString(chr);
+    } else if (chr === 0x5B) {
+      parseBracket(chr);
+    }
+  }
+
+  return {
+    exp: val.slice(0, expressionPos),
+    key: val.slice(expressionPos + 1, expressionEndPos)
+  }
+}
+
+function next () {
+  return str.charCodeAt(++index$1)
+}
+
+function eof () {
+  return index$1 >= len
+}
+
+function isStringStart (chr) {
+  return chr === 0x22 || chr === 0x27
+}
+
+function parseBracket (chr) {
+  let inBracket = 1;
+  expressionPos = index$1;
+  while (!eof()) {
+    chr = next();
+    if (isStringStart(chr)) {
+      parseString(chr);
+      continue
+    }
+    if (chr === 0x5B) inBracket++;
+    if (chr === 0x5D) inBracket--;
+    if (inBracket === 0) {
+      expressionEndPos = index$1;
+      break
+    }
+  }
+}
+
+function parseString (chr) {
+  const stringQuote = chr;
+  while (!eof()) {
+    chr = next();
+    if (chr === stringQuote) {
+      break
+    }
+  }
+}
+
+/*  */
+
+let warn$1;
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+const RANGE_TOKEN = '__r';
+const CHECKBOX_RADIO_TOKEN = '__c';
+
+function model (
+  el,
+  dir,
+  _warn
+) {
+  warn$1 = _warn;
+  const value = dir.value;
+  const modifiers = dir.modifiers;
+  const tag = el.tag;
+  const type = el.attrsMap.type;
+
+  {
+    // inputs with type="file" are read only and setting the input's
+    // value will throw an error.
+    if (tag === 'input' && type === 'file') {
+      warn$1(
+        `<${el.tag} v-model="${value}" type="file">:\n` +
+        `File inputs are read only. Use a v-on:change listener instead.`,
+        el.rawAttrsMap['v-model']
+      );
+    }
+  }
+
+  if (el.component) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else if (tag === 'select') {
+    genSelect(el, value, modifiers);
+  } else if (tag === 'input' && type === 'checkbox') {
+    genCheckboxModel(el, value, modifiers);
+  } else if (tag === 'input' && type === 'radio') {
+    genRadioModel(el, value, modifiers);
+  } else if (tag === 'input' || tag === 'textarea') {
+    genDefaultModel(el, value, modifiers);
+  } else if (!config.isReservedTag(tag)) {
+    genComponentModel(el, value, modifiers);
+    // component v-model doesn't need extra runtime
+    return false
+  } else {
+    warn$1(
+      `<${el.tag} v-model="${value}">: ` +
+      `v-model is not supported on this element type. ` +
+      'If you are working with contenteditable, it\'s recommended to ' +
+      'wrap a library dedicated for that purpose inside a custom component.',
+      el.rawAttrsMap['v-model']
+    );
+  }
+
+  // ensure runtime directive metadata
+  return true
+}
+
+function genCheckboxModel (
+  el,
+  value,
+  modifiers
+) {
+  const number = modifiers && modifiers.number;
+  const valueBinding = getBindingAttr(el, 'value') || 'null';
+  const trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
+  const falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
+  addProp(el, 'checked',
+    `Array.isArray(${value})` +
+    `?_i(${value},${valueBinding})>-1` + (
+      trueValueBinding === 'true'
+        ? `:(${value})`
+        : `:_q(${value},${trueValueBinding})`
+    )
+  );
+  addHandler(el, 'change',
+    `var $$a=${value},` +
+        '$$el=$event.target,' +
+        `$$c=$$el.checked?(${trueValueBinding}):(${falseValueBinding});` +
+    'if(Array.isArray($$a)){' +
+      `var $$v=${number ? '_n(' + valueBinding + ')' : valueBinding},` +
+          '$$i=_i($$a,$$v);' +
+      `if($$el.checked){$$i<0&&(${genAssignmentCode(value, '$$a.concat([$$v])')})}` +
+      `else{$$i>-1&&(${genAssignmentCode(value, '$$a.slice(0,$$i).concat($$a.slice($$i+1))')})}` +
+    `}else{${genAssignmentCode(value, '$$c')}}`,
+    null, true
+  );
+}
+
+function genRadioModel (
+  el,
+  value,
+  modifiers
+) {
+  const number = modifiers && modifiers.number;
+  let valueBinding = getBindingAttr(el, 'value') || 'null';
+  valueBinding = number ? `_n(${valueBinding})` : valueBinding;
+  addProp(el, 'checked', `_q(${value},${valueBinding})`);
+  addHandler(el, 'change', genAssignmentCode(value, valueBinding), null, true);
+}
+
+function genSelect (
+  el,
+  value,
+  modifiers
+) {
+  const number = modifiers && modifiers.number;
+  const selectedVal = `Array.prototype.filter` +
+    `.call($event.target.options,function(o){return o.selected})` +
+    `.map(function(o){var val = "_value" in o ? o._value : o.value;` +
+    `return ${number ? '_n(val)' : 'val'}})`;
+
+  const assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
+  let code = `var $$selectedVal = ${selectedVal};`;
+  code = `${code} ${genAssignmentCode(value, assignment)}`;
+  addHandler(el, 'change', code, null, true);
+}
+
+function genDefaultModel (
+  el,
+  value,
+  modifiers
+) {
+  const type = el.attrsMap.type;
+
+  // warn if v-bind:value conflicts with v-model
+  // except for inputs with v-bind:type
+  {
+    const value = el.attrsMap['v-bind:value'] || el.attrsMap[':value'];
+    const typeBinding = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
+    if (value && !typeBinding) {
+      const binding = el.attrsMap['v-bind:value'] ? 'v-bind:value' : ':value';
+      warn$1(
+        `${binding}="${value}" conflicts with v-model on the same element ` +
+        'because the latter already expands to a value binding internally',
+        el.rawAttrsMap[binding]
+      );
+    }
+  }
+
+  const { lazy, number, trim } = modifiers || {};
+  const needCompositionGuard = !lazy && type !== 'range';
+  const event = lazy
+    ? 'change'
+    : type === 'range'
+      ? RANGE_TOKEN
+      : 'input';
+
+  let valueExpression = '$event.target.value';
+  if (trim) {
+    valueExpression = `$event.target.value.trim()`;
+  }
+  if (number) {
+    valueExpression = `_n(${valueExpression})`;
+  }
+
+  let code = genAssignmentCode(value, valueExpression);
+  if (needCompositionGuard) {
+    code = `if($event.target.composing)return;${code}`;
+  }
+
+  addProp(el, 'value', `(${value})`);
+  addHandler(el, event, code, null, true);
+  if (trim || number) {
+    addHandler(el, 'blur', '$forceUpdate()');
+  }
+}
+
+/*  */
+
+// normalize v-model event tokens that can only be determined at runtime.
+// it's important to place the event as the first in the array because
+// the whole point is ensuring the v-model callback gets called before
+// user-attached handlers.
+function normalizeEvents (on) {
+  /* istanbul ignore if */
+  if (isDef(on[RANGE_TOKEN])) {
+    // IE input[type=range] only supports `change` event
+    const event = isIE ? 'change' : 'input';
+    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+    delete on[RANGE_TOKEN];
+  }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
+}
+
+let target$1;
+
+function createOnceHandler$1 (event, handler, capture) {
+  const _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    const res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
+function add$1 (
+  name,
+  handler,
+  capture,
+  passive
+) {
+  // async edge case #6566: inner click event triggers patch, event handler
+  // attached to outer element during patch, and triggered again. This
+  // happens because browsers fire microtask ticks between event propagation.
+  // the solution is simple: we save the timestamp when a handler is attached,
+  // and the handler would only fire if the event passed to it was fired
+  // AFTER it was attached.
+  if (isUsingMicroTask) {
+    const attachedTimestamp = currentFlushTimestamp;
+    const original = handler;
+    handler = original._wrapper = function (e) {
+      if (e.timeStamp >= attachedTimestamp) {
+        return original.apply(this, arguments)
+      }
+    };
+  }
+  target$1.addEventListener(
+    name,
+    handler,
+    supportsPassive
+      ? { capture, passive }
+      : capture
+  );
+}
+
+function remove$2 (
+  name,
+  handler,
+  capture,
+  _target
+) {
+  (_target || target$1).removeEventListener(
+    name,
+    handler._wrapper || handler,
+    capture
+  );
+}
+
+function updateDOMListeners (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+    return
+  }
+  const on = vnode.data.on || {};
+  const oldOn = oldVnode.data.on || {};
+  target$1 = vnode.elm;
+  normalizeEvents(on);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
+  target$1 = undefined;
+}
+
+var events = {
+  create: updateDOMListeners,
+  update: updateDOMListeners
+};
+
+/*  */
+
+let svgContainer;
+
+function updateDOMProps (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+    return
+  }
+  let key, cur;
+  const elm = vnode.elm;
+  const oldProps = oldVnode.data.domProps || {};
+  let props = vnode.data.domProps || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(props.__ob__)) {
+    props = vnode.data.domProps = extend({}, props);
+  }
+
+  for (key in oldProps) {
+    if (isUndef(props[key])) {
+      elm[key] = '';
+    }
+  }
+  for (key in props) {
+    cur = props[key];
+    // ignore children if the node has textContent or innerHTML,
+    // as these will throw away existing DOM nodes and cause removal errors
+    // on subsequent patches (#3360)
+    if (key === 'textContent' || key === 'innerHTML') {
+      if (vnode.children) vnode.children.length = 0;
+      if (cur === oldProps[key]) continue
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
+    }
+
+    // skip the update if old and new VDOM state is the same.
+    // the only exception is `value` where the DOM value may be temporarily
+    // out of sync with VDOM state due to focus, composition and modifiers.
+    // This also covers #4521 by skipping the unnecesarry `checked` update.
+    if (key !== 'value' && cur === oldProps[key]) {
+      continue
+    }
+
+    if (key === 'value') {
+      // store value as _value as well since
+      // non-string values will be stringified
+      elm._value = cur;
+      // avoid resetting cursor position when value is the same
+      const strCur = isUndef(cur) ? '' : String(cur);
+      if (shouldUpdateValue(elm, strCur)) {
+        elm.value = strCur;
+      }
+    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+      // IE doesn't support innerHTML for SVG elements
+      svgContainer = svgContainer || document.createElement('div');
+      svgContainer.innerHTML = `<svg>${cur}</svg>`;
+      const svg = svgContainer.firstChild;
+      while (elm.firstChild) {
+        elm.removeChild(elm.firstChild);
+      }
+      while (svg.firstChild) {
+        elm.appendChild(svg.firstChild);
+      }
+    } else {
+      elm[key] = cur;
+    }
+  }
+}
+
+// check platforms/web/util/attrs.js acceptValue
+
+
+function shouldUpdateValue (elm, checkVal) {
+  return (!elm.composing && (
+    elm.tagName === 'OPTION' ||
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
+  ))
+}
+
+function isNotInFocusAndDirty (elm, checkVal) {
+  // return true when textbox (.number and .trim) loses focus and its value is
+  // not equal to the updated value
+  let notInFocus = true;
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm; } catch (e) {}
+  return notInFocus && elm.value !== checkVal
+}
+
+function isDirtyWithModifiers (elm, newVal) {
+  const value = elm.value;
+  const modifiers = elm._vModifiers; // injected by v-model runtime
+  if (isDef(modifiers)) {
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
+  }
+  return value !== newVal
+}
+
+var domProps = {
+  create: updateDOMProps,
+  update: updateDOMProps
+};
+
+/*  */
+
+const parseStyleText = cached(function (cssText) {
+  const res = {};
+  const listDelimiter = /;(?![^(]*\))/g;
+  const propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      const tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// merge static and dynamic style data on the same vnode
+function normalizeStyleData (data) {
+  const style = normalizeStyleBinding(data.style);
+  // static style is pre-processed into an object during compilation
+  // and is always a fresh object, so it's safe to merge into it
+  return data.staticStyle
+    ? extend(data.staticStyle, style)
+    : style
+}
+
+// normalize possible array / string values into Object
+function normalizeStyleBinding (bindingStyle) {
+  if (Array.isArray(bindingStyle)) {
+    return toObject(bindingStyle)
+  }
+  if (typeof bindingStyle === 'string') {
+    return parseStyleText(bindingStyle)
+  }
+  return bindingStyle
+}
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+function getStyle (vnode, checkChild) {
+  const res = {};
+  let styleData;
+
+  if (checkChild) {
+    let childNode = vnode;
+    while (childNode.componentInstance) {
+      childNode = childNode.componentInstance._vnode;
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
+        extend(res, styleData);
+      }
+    }
+  }
+
+  if ((styleData = normalizeStyleData(vnode.data))) {
+    extend(res, styleData);
+  }
+
+  let parentNode = vnode;
+  while ((parentNode = parentNode.parent)) {
+    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+      extend(res, styleData);
+    }
+  }
+  return res
+}
+
+/*  */
+
+const cssVarRE = /^--/;
+const importantRE = /\s*!important$/;
+const setProp = (el, name, val) => {
+  /* istanbul ignore if */
+  if (cssVarRE.test(name)) {
+    el.style.setProperty(name, val);
+  } else if (importantRE.test(val)) {
+    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+  } else {
+    const normalizedName = normalize(name);
+    if (Array.isArray(val)) {
+      // Support values array created by autoprefixer, e.g.
+      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+      // Set them one by one, and the browser will only set those it can recognize
+      for (let i = 0, len = val.length; i < len; i++) {
+        el.style[normalizedName] = val[i];
+      }
+    } else {
+      el.style[normalizedName] = val;
+    }
+  }
+};
+
+const vendorNames = ['Webkit', 'Moz', 'ms'];
+
+let emptyStyle;
+const normalize = cached(function (prop) {
+  emptyStyle = emptyStyle || document.createElement('div').style;
+  prop = camelize(prop);
+  if (prop !== 'filter' && (prop in emptyStyle)) {
+    return prop
+  }
+  const capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+  for (let i = 0; i < vendorNames.length; i++) {
+    const name = vendorNames[i] + capName;
+    if (name in emptyStyle) {
+      return name
+    }
+  }
+});
+
+function updateStyle (oldVnode, vnode) {
+  const data = vnode.data;
+  const oldData = oldVnode.data;
+
+  if (isUndef(data.staticStyle) && isUndef(data.style) &&
+    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  ) {
+    return
+  }
+
+  let cur, name;
+  const el = vnode.elm;
+  const oldStaticStyle = oldData.staticStyle;
+  const oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+
+  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+  const oldStyle = oldStaticStyle || oldStyleBinding;
+
+  const style = normalizeStyleBinding(vnode.data.style) || {};
+
+  // store normalized style under a different key for next diff
+  // make sure to clone it if it's reactive, since the user likely wants
+  // to mutate it.
+  vnode.data.normalizedStyle = isDef(style.__ob__)
+    ? extend({}, style)
+    : style;
+
+  const newStyle = getStyle(vnode, true);
+
+  for (name in oldStyle) {
+    if (isUndef(newStyle[name])) {
+      setProp(el, name, '');
+    }
+  }
+  for (name in newStyle) {
+    cur = newStyle[name];
+    if (cur !== oldStyle[name]) {
+      // ie9 setting to null has no effect, must use empty string
+      setProp(el, name, cur == null ? '' : cur);
+    }
+  }
+}
+
+var style = {
+  create: updateStyle,
+  update: updateStyle
+};
+
+/*  */
+
+const whitespaceRE = /\s+/;
+
+/**
+ * Add class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function addClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(c => el.classList.add(c));
+    } else {
+      el.classList.add(cls);
+    }
+  } else {
+    const cur = ` ${el.getAttribute('class') || ''} `;
+    if (cur.indexOf(' ' + cls + ' ') < 0) {
+      el.setAttribute('class', (cur + cls).trim());
+    }
+  }
+}
+
+/**
+ * Remove class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function removeClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(c => el.classList.remove(c));
+    } else {
+      el.classList.remove(cls);
+    }
+    if (!el.classList.length) {
+      el.removeAttribute('class');
+    }
+  } else {
+    let cur = ` ${el.getAttribute('class') || ''} `;
+    const tar = ' ' + cls + ' ';
+    while (cur.indexOf(tar) >= 0) {
+      cur = cur.replace(tar, ' ');
+    }
+    cur = cur.trim();
+    if (cur) {
+      el.setAttribute('class', cur);
+    } else {
+      el.removeAttribute('class');
+    }
+  }
+}
+
+/*  */
+
+function resolveTransition (def$$1) {
+  if (!def$$1) {
+    return
+  }
+  /* istanbul ignore else */
+  if (typeof def$$1 === 'object') {
+    const res = {};
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
+    }
+    extend(res, def$$1);
+    return res
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
+  }
+}
+
+const autoCssTransition = cached(name => {
+  return {
+    enterClass: `${name}-enter`,
+    enterToClass: `${name}-enter-to`,
+    enterActiveClass: `${name}-enter-active`,
+    leaveClass: `${name}-leave`,
+    leaveToClass: `${name}-leave-to`,
+    leaveActiveClass: `${name}-leave-active`
+  }
+});
+
+const hasTransition = inBrowser && !isIE9;
+const TRANSITION = 'transition';
+const ANIMATION = 'animation';
+
+// Transition property/event sniffing
+let transitionProp = 'transition';
+let transitionEndEvent = 'transitionend';
+let animationProp = 'animation';
+let animationEndEvent = 'animationend';
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    transitionProp = 'WebkitTransition';
+    transitionEndEvent = 'webkitTransitionEnd';
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    animationProp = 'WebkitAnimation';
+    animationEndEvent = 'webkitAnimationEnd';
+  }
+}
+
+// binding to window is necessary to make hot reload work in IE in strict mode
+const raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ fn => fn();
+
+function nextFrame (fn) {
+  raf(() => {
+    raf(fn);
+  });
+}
+
+function addTransitionClass (el, cls) {
+  const transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+  if (transitionClasses.indexOf(cls) < 0) {
+    transitionClasses.push(cls);
+    addClass(el, cls);
+  }
+}
+
+function removeTransitionClass (el, cls) {
+  if (el._transitionClasses) {
+    remove(el._transitionClasses, cls);
+  }
+  removeClass(el, cls);
+}
+
+function whenTransitionEnds (
+  el,
+  expectedType,
+  cb
+) {
+  const { type, timeout, propCount } = getTransitionInfo(el, expectedType);
+  if (!type) return cb()
+  const event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+  let ended = 0;
+  const end = () => {
+    el.removeEventListener(event, onEnd);
+    cb();
+  };
+  const onEnd = e => {
+    if (e.target === el) {
+      if (++ended >= propCount) {
+        end();
+      }
+    }
+  };
+  setTimeout(() => {
+    if (ended < propCount) {
+      end();
+    }
+  }, timeout + 1);
+  el.addEventListener(event, onEnd);
+}
+
+const transformRE = /\b(transform|all)(,|$)/;
+
+function getTransitionInfo (el, expectedType) {
+  const styles = window.getComputedStyle(el);
+  // JSDOM may return undefined for transition properties
+  const transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  const transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
+  const transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+  const animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  const animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
+  const animationTimeout = getTimeout(animationDelays, animationDurations);
+
+  let type;
+  let timeout = 0;
+  let propCount = 0;
+  /* istanbul ignore if */
+  if (expectedType === TRANSITION) {
+    if (transitionTimeout > 0) {
+      type = TRANSITION;
+      timeout = transitionTimeout;
+      propCount = transitionDurations.length;
+    }
+  } else if (expectedType === ANIMATION) {
+    if (animationTimeout > 0) {
+      type = ANIMATION;
+      timeout = animationTimeout;
+      propCount = animationDurations.length;
+    }
+  } else {
+    timeout = Math.max(transitionTimeout, animationTimeout);
+    type = timeout > 0
+      ? transitionTimeout > animationTimeout
+        ? TRANSITION
+        : ANIMATION
+      : null;
+    propCount = type
+      ? type === TRANSITION
+        ? transitionDurations.length
+        : animationDurations.length
+      : 0;
+  }
+  const hasTransform =
+    type === TRANSITION &&
+    transformRE.test(styles[transitionProp + 'Property']);
+  return {
+    type,
+    timeout,
+    propCount,
+    hasTransform
+  }
+}
+
+function getTimeout (delays, durations) {
+  /* istanbul ignore next */
+  while (delays.length < durations.length) {
+    delays = delays.concat(delays);
+  }
+
+  return Math.max.apply(null, durations.map((d, i) => {
+    return toMs(d) + toMs(delays[i])
+  }))
+}
+
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
+function toMs (s) {
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
+}
+
+/*  */
+
+function enter (vnode, toggleDisplay) {
+  const el = vnode.elm;
+
+  // call leave callback now
+  if (isDef(el._leaveCb)) {
+    el._leaveCb.cancelled = true;
+    el._leaveCb();
+  }
+
+  const data = resolveTransition(vnode.data.transition);
+  if (isUndef(data)) {
+    return
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._enterCb) || el.nodeType !== 1) {
+    return
+  }
+
+  const {
+    css,
+    type,
+    enterClass,
+    enterToClass,
+    enterActiveClass,
+    appearClass,
+    appearToClass,
+    appearActiveClass,
+    beforeEnter,
+    enter,
+    afterEnter,
+    enterCancelled,
+    beforeAppear,
+    appear,
+    afterAppear,
+    appearCancelled,
+    duration
+  } = data;
+
+  // activeInstance will always be the <transition> component managing this
+  // transition. One edge case to check is when the <transition> is placed
+  // as the root node of a child component. In that case we need to check
+  // <transition>'s parent for appear check.
+  let context = activeInstance;
+  let transitionNode = activeInstance.$vnode;
+  while (transitionNode && transitionNode.parent) {
+    transitionNode = transitionNode.parent;
+    context = transitionNode.context;
+  }
+
+  const isAppear = !context._isMounted || !vnode.isRootInsert;
+
+  if (isAppear && !appear && appear !== '') {
+    return
+  }
+
+  const startClass = isAppear && appearClass
+    ? appearClass
+    : enterClass;
+  const activeClass = isAppear && appearActiveClass
+    ? appearActiveClass
+    : enterActiveClass;
+  const toClass = isAppear && appearToClass
+    ? appearToClass
+    : enterToClass;
+
+  const beforeEnterHook = isAppear
+    ? (beforeAppear || beforeEnter)
+    : beforeEnter;
+  const enterHook = isAppear
+    ? (typeof appear === 'function' ? appear : enter)
+    : enter;
+  const afterEnterHook = isAppear
+    ? (afterAppear || afterEnter)
+    : afterEnter;
+  const enterCancelledHook = isAppear
+    ? (appearCancelled || enterCancelled)
+    : enterCancelled;
+
+  const explicitEnterDuration = toNumber(
+    isObject(duration)
+      ? duration.enter
+      : duration
+  );
+
+  if (explicitEnterDuration != null) {
+    checkDuration(explicitEnterDuration, 'enter', vnode);
+  }
+
+  const expectsCSS = css !== false && !isIE9;
+  const userWantsControl = getHookArgumentsLength(enterHook);
+
+  const cb = el._enterCb = once(() => {
+    if (expectsCSS) {
+      removeTransitionClass(el, toClass);
+      removeTransitionClass(el, activeClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, startClass);
+      }
+      enterCancelledHook && enterCancelledHook(el);
+    } else {
+      afterEnterHook && afterEnterHook(el);
+    }
+    el._enterCb = null;
+  });
+
+  if (!vnode.data.show) {
+    // remove pending leave element on enter by injecting an insert hook
+    mergeVNodeHook(vnode, 'insert', () => {
+      const parent = el.parentNode;
+      const pendingNode = parent && parent._pending && parent._pending[vnode.key];
+      if (pendingNode &&
+        pendingNode.tag === vnode.tag &&
+        pendingNode.elm._leaveCb
+      ) {
+        pendingNode.elm._leaveCb();
+      }
+      enterHook && enterHook(el, cb);
+    });
+  }
+
+  // start enter transition
+  beforeEnterHook && beforeEnterHook(el);
+  if (expectsCSS) {
+    addTransitionClass(el, startClass);
+    addTransitionClass(el, activeClass);
+    nextFrame(() => {
+      removeTransitionClass(el, startClass);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
+        }
+      }
+    });
+  }
+
+  if (vnode.data.show) {
+    toggleDisplay && toggleDisplay();
+    enterHook && enterHook(el, cb);
+  }
+
+  if (!expectsCSS && !userWantsControl) {
+    cb();
+  }
+}
+
+function leave (vnode, rm) {
+  const el = vnode.elm;
+
+  // call enter callback now
+  if (isDef(el._enterCb)) {
+    el._enterCb.cancelled = true;
+    el._enterCb();
+  }
+
+  const data = resolveTransition(vnode.data.transition);
+  if (isUndef(data) || el.nodeType !== 1) {
+    return rm()
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._leaveCb)) {
+    return
+  }
+
+  const {
+    css,
+    type,
+    leaveClass,
+    leaveToClass,
+    leaveActiveClass,
+    beforeLeave,
+    leave,
+    afterLeave,
+    leaveCancelled,
+    delayLeave,
+    duration
+  } = data;
+
+  const expectsCSS = css !== false && !isIE9;
+  const userWantsControl = getHookArgumentsLength(leave);
+
+  const explicitLeaveDuration = toNumber(
+    isObject(duration)
+      ? duration.leave
+      : duration
+  );
+
+  if (isDef(explicitLeaveDuration)) {
+    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  }
+
+  const cb = el._leaveCb = once(() => {
+    if (el.parentNode && el.parentNode._pending) {
+      el.parentNode._pending[vnode.key] = null;
+    }
+    if (expectsCSS) {
+      removeTransitionClass(el, leaveToClass);
+      removeTransitionClass(el, leaveActiveClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveClass);
+      }
+      leaveCancelled && leaveCancelled(el);
+    } else {
+      rm();
+      afterLeave && afterLeave(el);
+    }
+    el._leaveCb = null;
+  });
+
+  if (delayLeave) {
+    delayLeave(performLeave);
+  } else {
+    performLeave();
+  }
+
+  function performLeave () {
+    // the delayed leave may have already been cancelled
+    if (cb.cancelled) {
+      return
+    }
+    // record leaving element
+    if (!vnode.data.show && el.parentNode) {
+      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+    }
+    beforeLeave && beforeLeave(el);
+    if (expectsCSS) {
+      addTransitionClass(el, leaveClass);
+      addTransitionClass(el, leaveActiveClass);
+      nextFrame(() => {
+        removeTransitionClass(el, leaveClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
+          }
+        }
+      });
+    }
+    leave && leave(el, cb);
+    if (!expectsCSS && !userWantsControl) {
+      cb();
+    }
+  }
+}
+
+// only used in dev mode
+function checkDuration (val, name, vnode) {
+  if (typeof val !== 'number') {
+    warn(
+      `<transition> explicit ${name} duration is not a valid number - ` +
+      `got ${JSON.stringify(val)}.`,
+      vnode.context
+    );
+  } else if (isNaN(val)) {
+    warn(
+      `<transition> explicit ${name} duration is NaN - ` +
+      'the duration expression might be incorrect.',
+      vnode.context
+    );
+  }
+}
+
+function isValidDuration (val) {
+  return typeof val === 'number' && !isNaN(val)
+}
+
+/**
+ * Normalize a transition hook's argument length. The hook may be:
+ * - a merged hook (invoker) with the original in .fns
+ * - a wrapped component method (check ._length)
+ * - a plain function (.length)
+ */
+function getHookArgumentsLength (fn) {
+  if (isUndef(fn)) {
+    return false
+  }
+  const invokerFns = fn.fns;
+  if (isDef(invokerFns)) {
+    // invoker
+    return getHookArgumentsLength(
+      Array.isArray(invokerFns)
+        ? invokerFns[0]
+        : invokerFns
+    )
+  } else {
+    return (fn._length || fn.length) > 1
+  }
+}
+
+function _enter (_, vnode) {
+  if (vnode.data.show !== true) {
+    enter(vnode);
+  }
+}
+
+var transition = inBrowser ? {
+  create: _enter,
+  activate: _enter,
+  remove (vnode, rm) {
+    /* istanbul ignore else */
+    if (vnode.data.show !== true) {
+      leave(vnode, rm);
+    } else {
+      rm();
+    }
+  }
+} : {};
+
+var platformModules = [
+  attrs,
+  klass,
+  events,
+  domProps,
+  style,
+  transition
+];
+
+/*  */
+
+// the directive module should be applied last, after all
+// built-in modules have been applied.
+const modules = platformModules.concat(baseModules);
+
+const patch = createPatchFunction({ nodeOps, modules });
+
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', () => {
+    const el = document.activeElement;
+    if (el && el.vmodel) {
+      trigger(el, 'input');
+    }
+  });
+}
+
+const directive = {
+  inserted (el, binding, vnode, oldVnode) {
+    if (vnode.tag === 'select') {
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', () => {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
+      el._vOptions = [].map.call(el.options, getValue);
+    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+      el._vModifiers = binding.modifiers;
+      if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
+        // Safari < 10.2 & UIWebView doesn't fire compositionend when
+        // switching focus before confirming composition choice
+        // this also fixes the issue where some browsers e.g. iOS Chrome
+        // fires "change" instead of "input" on autocomplete.
+        el.addEventListener('change', onCompositionEnd);
+        /* istanbul ignore if */
+        if (isIE9) {
+          el.vmodel = true;
+        }
+      }
+    }
+  },
+
+  componentUpdated (el, binding, vnode) {
+    if (vnode.tag === 'select') {
+      setSelected(el, binding, vnode.context);
+      // in case the options rendered by v-for have changed,
+      // it's possible that the value is out-of-sync with the rendered options.
+      // detect such cases and filter out values that no longer has a matching
+      // option in the DOM.
+      const prevOptions = el._vOptions;
+      const curOptions = el._vOptions = [].map.call(el.options, getValue);
+      if (curOptions.some((o, i) => !looseEqual(o, prevOptions[i]))) {
+        // trigger change event if
+        // no matching option found for at least one value
+        const needReset = el.multiple
+          ? binding.value.some(v => hasNoMatchingOption(v, curOptions))
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
+      }
+    }
+  }
+};
+
+function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(() => {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  const value = binding.value;
+  const isMultiple = el.multiple;
+  if (isMultiple && !Array.isArray(value)) {
+    warn(
+      `<select multiple v-model="${binding.expression}"> ` +
+      `expects an Array value for its binding, but got ${
+        Object.prototype.toString.call(value).slice(8, -1)
+      }`,
+      vm
+    );
+    return
+  }
+  let selected, option;
+  for (let i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i];
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1;
+      if (option.selected !== selected) {
+        option.selected = selected;
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i;
+        }
+        return
+      }
+    }
+  }
+  if (!isMultiple) {
+    el.selectedIndex = -1;
+  }
+}
+
+function hasNoMatchingOption (value, options) {
+  return options.every(o => !looseEqual(o, value))
+}
+
+function getValue (option) {
+  return '_value' in option
+    ? option._value
+    : option.value
+}
+
+function onCompositionStart (e) {
+  e.target.composing = true;
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) return
+  e.target.composing = false;
+  trigger(e.target, 'input');
+}
+
+function trigger (el, type) {
+  const e = document.createEvent('HTMLEvents');
+  e.initEvent(type, true, true);
+  el.dispatchEvent(e);
+}
+
+/*  */
+
+// recursively search for possible transition defined inside the component root
+function locateNode (vnode) {
+  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+    ? locateNode(vnode.componentInstance._vnode)
+    : vnode
+}
+
+var show = {
+  bind (el, { value }, vnode) {
+    vnode = locateNode(vnode);
+    const transition$$1 = vnode.data && vnode.data.transition;
+    const originalDisplay = el.__vOriginalDisplay =
+      el.style.display === 'none' ? '' : el.style.display;
+    if (value && transition$$1) {
+      vnode.data.show = true;
+      enter(vnode, () => {
+        el.style.display = originalDisplay;
+      });
+    } else {
+      el.style.display = value ? originalDisplay : 'none';
+    }
+  },
+
+  update (el, { value, oldValue }, vnode) {
+    /* istanbul ignore if */
+    if (!value === !oldValue) return
+    vnode = locateNode(vnode);
+    const transition$$1 = vnode.data && vnode.data.transition;
+    if (transition$$1) {
+      vnode.data.show = true;
+      if (value) {
+        enter(vnode, () => {
+          el.style.display = el.__vOriginalDisplay;
+        });
+      } else {
+        leave(vnode, () => {
+          el.style.display = 'none';
+        });
+      }
+    } else {
+      el.style.display = value ? el.__vOriginalDisplay : 'none';
+    }
+  },
+
+  unbind (
+    el,
+    binding,
+    vnode,
+    oldVnode,
+    isDestroy
+  ) {
+    if (!isDestroy) {
+      el.style.display = el.__vOriginalDisplay;
+    }
+  }
+};
+
+var platformDirectives = {
+  model: directive,
+  show
+};
+
+/*  */
+
+const transitionProps = {
+  name: String,
+  appear: Boolean,
+  css: Boolean,
+  mode: String,
+  type: String,
+  enterClass: String,
+  leaveClass: String,
+  enterToClass: String,
+  leaveToClass: String,
+  enterActiveClass: String,
+  leaveActiveClass: String,
+  appearClass: String,
+  appearActiveClass: String,
+  appearToClass: String,
+  duration: [Number, String, Object]
+};
+
+// in case the child is also an abstract component, e.g. <keep-alive>
+// we want to recursively retrieve the real component to be rendered
+function getRealChild (vnode) {
+  const compOptions = vnode && vnode.componentOptions;
+  if (compOptions && compOptions.Ctor.options.abstract) {
+    return getRealChild(getFirstComponentChild(compOptions.children))
+  } else {
+    return vnode
+  }
+}
+
+function extractTransitionData (comp) {
+  const data = {};
+  const options = comp.$options;
+  // props
+  for (const key in options.propsData) {
+    data[key] = comp[key];
+  }
+  // events.
+  // extract listeners and pass them directly to the transition methods
+  const listeners = options._parentListeners;
+  for (const key in listeners) {
+    data[camelize(key)] = listeners[key];
+  }
+  return data
+}
+
+function placeholder (h, rawChild) {
+  if (/\d-keep-alive$/.test(rawChild.tag)) {
+    return h('keep-alive', {
+      props: rawChild.componentOptions.propsData
+    })
+  }
+}
+
+function hasParentTransition (vnode) {
+  while ((vnode = vnode.parent)) {
+    if (vnode.data.transition) {
+      return true
+    }
+  }
+}
+
+function isSameChild (child, oldChild) {
+  return oldChild.key === child.key && oldChild.tag === child.tag
+}
+
+const isNotTextNode = (c) => c.tag || isAsyncPlaceholder(c);
+
+const isVShowDirective = d => d.name === 'show';
+
+var Transition = {
+  name: 'transition',
+  props: transitionProps,
+  abstract: true,
+
+  render (h) {
+    let children = this.$slots.default;
+    if (!children) {
+      return
+    }
+
+    // filter out text nodes (possible whitespaces)
+    children = children.filter(isNotTextNode);
+    /* istanbul ignore if */
+    if (!children.length) {
+      return
+    }
+
+    // warn multiple elements
+    if (children.length > 1) {
+      warn(
+        '<transition> can only be used on a single element. Use ' +
+        '<transition-group> for lists.',
+        this.$parent
+      );
+    }
+
+    const mode = this.mode;
+
+    // warn invalid mode
+    if (mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
+      warn(
+        'invalid <transition> mode: ' + mode,
+        this.$parent
+      );
+    }
+
+    const rawChild = children[0];
+
+    // if this is a component root node and the component's
+    // parent container node also has transition, skip.
+    if (hasParentTransition(this.$vnode)) {
+      return rawChild
+    }
+
+    // apply transition data to child
+    // use getRealChild() to ignore abstract components e.g. keep-alive
+    const child = getRealChild(rawChild);
+    /* istanbul ignore if */
+    if (!child) {
+      return rawChild
+    }
+
+    if (this._leaving) {
+      return placeholder(h, rawChild)
+    }
+
+    // ensure a key that is unique to the vnode type and to this transition
+    // component instance. This key will be used to remove pending leaving nodes
+    // during entering.
+    const id = `__transition-${this._uid}-`;
+    child.key = child.key == null
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
+      : isPrimitive(child.key)
+        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+        : child.key;
+
+    const data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+    const oldRawChild = this._vnode;
+    const oldChild = getRealChild(oldRawChild);
+
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
+      child.data.show = true;
+    }
+
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+    ) {
+      // replace old child transition data with fresh one
+      // important for dynamic transitions!
+      const oldData = oldChild.data.transition = extend({}, data);
+      // handle transition mode
+      if (mode === 'out-in') {
+        // return placeholder node and queue update when leave finishes
+        this._leaving = true;
+        mergeVNodeHook(oldData, 'afterLeave', () => {
+          this._leaving = false;
+          this.$forceUpdate();
+        });
+        return placeholder(h, rawChild)
+      } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
+        let delayedLeave;
+        const performLeave = () => { delayedLeave(); };
+        mergeVNodeHook(data, 'afterEnter', performLeave);
+        mergeVNodeHook(data, 'enterCancelled', performLeave);
+        mergeVNodeHook(oldData, 'delayLeave', leave => { delayedLeave = leave; });
+      }
+    }
+
+    return rawChild
+  }
+};
+
+/*  */
+
+const props = extend({
+  tag: String,
+  moveClass: String
+}, transitionProps);
+
+delete props.mode;
+
+var TransitionGroup = {
+  props,
+
+  beforeMount () {
+    const update = this._update;
+    this._update = (vnode, hydrating) => {
+      const restoreActiveInstance = setActiveInstance(this);
+      // force removing pass
+      this.__patch__(
+        this._vnode,
+        this.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this._vnode = this.kept;
+      restoreActiveInstance();
+      update.call(this, vnode, hydrating);
+    };
+  },
+
+  render (h) {
+    const tag = this.tag || this.$vnode.data.tag || 'span';
+    const map = Object.create(null);
+    const prevChildren = this.prevChildren = this.children;
+    const rawChildren = this.$slots.default || [];
+    const children = this.children = [];
+    const transitionData = extractTransitionData(this);
+
+    for (let i = 0; i < rawChildren.length; i++) {
+      const c = rawChildren[i];
+      if (c.tag) {
+        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+          children.push(c);
+          map[c.key] = c
+          ;(c.data || (c.data = {})).transition = transitionData;
+        } else {
+          const opts = c.componentOptions;
+          const name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+          warn(`<transition-group> children must be keyed: <${name}>`);
+        }
+      }
+    }
+
+    if (prevChildren) {
+      const kept = [];
+      const removed = [];
+      for (let i = 0; i < prevChildren.length; i++) {
+        const c = prevChildren[i];
+        c.data.transition = transitionData;
+        c.data.pos = c.elm.getBoundingClientRect();
+        if (map[c.key]) {
+          kept.push(c);
+        } else {
+          removed.push(c);
+        }
+      }
+      this.kept = h(tag, null, kept);
+      this.removed = removed;
+    }
+
+    return h(tag, null, children)
+  },
+
+  updated () {
+    const children = this.prevChildren;
+    const moveClass = this.moveClass || ((this.name || 'v') + '-move');
+    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+      return
+    }
+
+    // we divide the work into three loops to avoid mixing DOM reads and writes
+    // in each iteration - which helps prevent layout thrashing.
+    children.forEach(callPendingCbs);
+    children.forEach(recordPosition);
+    children.forEach(applyTranslation);
+
+    // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
+    children.forEach((c) => {
+      if (c.data.moved) {
+        const el = c.elm;
+        const s = el.style;
+        addTransitionClass(el, moveClass);
+        s.transform = s.WebkitTransform = s.transitionDuration = '';
+        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
+          if (!e || /transform$/.test(e.propertyName)) {
+            el.removeEventListener(transitionEndEvent, cb);
+            el._moveCb = null;
+            removeTransitionClass(el, moveClass);
+          }
+        });
+      }
+    });
+  },
+
+  methods: {
+    hasMove (el, moveClass) {
+      /* istanbul ignore if */
+      if (!hasTransition) {
+        return false
+      }
+      /* istanbul ignore if */
+      if (this._hasMove) {
+        return this._hasMove
+      }
+      // Detect whether an element with the move class applied has
+      // CSS transitions. Since the element may be inside an entering
+      // transition at this very moment, we make a clone of it and remove
+      // all other transition classes applied to ensure only the move class
+      // is applied.
+      const clone = el.cloneNode();
+      if (el._transitionClasses) {
+        el._transitionClasses.forEach((cls) => { removeClass(clone, cls); });
+      }
+      addClass(clone, moveClass);
+      clone.style.display = 'none';
+      this.$el.appendChild(clone);
+      const info = getTransitionInfo(clone);
+      this.$el.removeChild(clone);
+      return (this._hasMove = info.hasTransform)
+    }
+  }
+};
+
+function callPendingCbs (c) {
+  /* istanbul ignore if */
+  if (c.elm._moveCb) {
+    c.elm._moveCb();
+  }
+  /* istanbul ignore if */
+  if (c.elm._enterCb) {
+    c.elm._enterCb();
+  }
+}
+
+function recordPosition (c) {
+  c.data.newPos = c.elm.getBoundingClientRect();
+}
+
+function applyTranslation (c) {
+  const oldPos = c.data.pos;
+  const newPos = c.data.newPos;
+  const dx = oldPos.left - newPos.left;
+  const dy = oldPos.top - newPos.top;
+  if (dx || dy) {
+    c.data.moved = true;
+    const s = c.elm.style;
+    s.transform = s.WebkitTransform = `translate(${dx}px,${dy}px)`;
+    s.transitionDuration = '0s';
+  }
+}
+
+var platformComponents = {
+  Transition,
+  TransitionGroup
+};
+
+/*  */
+
+// install platform specific utils
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
+
+// install platform runtime directives & components
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
+
+// install platform patch function
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
+
+// public mount method
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && inBrowser ? query(el) : undefined;
+  return mountComponent(this, el, hydrating)
+};
+
+// devtools global hook
+/* istanbul ignore next */
+if (inBrowser) {
+  setTimeout(() => {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
+      console[console.info ? 'info' : 'log'](
+        `You are running Vue in development mode.\n` +
+        `Make sure to turn on production mode when deploying for production.\n` +
+        `See more tips at https://vuejs.org/guide/deployment.html`
+      );
+    }
+  }, 0);
+}
+
+/*  */
+
+const defaultTagRE = /\{\{((?:.|\r?\n)+?)\}\}/g;
+const regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;
+
+const buildRegex = cached(delimiters => {
+  const open = delimiters[0].replace(regexEscapeRE, '\\$&');
+  const close = delimiters[1].replace(regexEscapeRE, '\\$&');
+  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
+});
+
+
+
+function parseText (
+  text,
+  delimiters
+) {
+  const tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
+  if (!tagRE.test(text)) {
+    return
+  }
+  const tokens = [];
+  const rawTokens = [];
+  let lastIndex = tagRE.lastIndex = 0;
+  let match, index, tokenValue;
+  while ((match = tagRE.exec(text))) {
+    index = match.index;
+    // push text token
+    if (index > lastIndex) {
+      rawTokens.push(tokenValue = text.slice(lastIndex, index));
+      tokens.push(JSON.stringify(tokenValue));
+    }
+    // tag token
+    const exp = parseFilters(match[1].trim());
+    tokens.push(`_s(${exp})`);
+    rawTokens.push({ '@binding': exp });
+    lastIndex = index + match[0].length;
+  }
+  if (lastIndex < text.length) {
+    rawTokens.push(tokenValue = text.slice(lastIndex));
+    tokens.push(JSON.stringify(tokenValue));
+  }
+  return {
+    expression: tokens.join('+'),
+    tokens: rawTokens
+  }
+}
+
+/*  */
+
+function transformNode (el, options) {
+  const warn = options.warn || baseWarn;
+  const staticClass = getAndRemoveAttr(el, 'class');
+  if (staticClass) {
+    const res = parseText(staticClass, options.delimiters);
+    if (res) {
+      warn(
+        `class="${staticClass}": ` +
+        'Interpolation inside attributes has been removed. ' +
+        'Use v-bind or the colon shorthand instead. For example, ' +
+        'instead of <div class="{{ val }}">, use <div :class="val">.',
+        el.rawAttrsMap['class']
+      );
+    }
+  }
+  if (staticClass) {
+    el.staticClass = JSON.stringify(staticClass);
+  }
+  const classBinding = getBindingAttr(el, 'class', false /* getStatic */);
+  if (classBinding) {
+    el.classBinding = classBinding;
+  }
+}
+
+function genData (el) {
+  let data = '';
+  if (el.staticClass) {
+    data += `staticClass:${el.staticClass},`;
+  }
+  if (el.classBinding) {
+    data += `class:${el.classBinding},`;
+  }
+  return data
+}
+
+var klass$1 = {
+  staticKeys: ['staticClass'],
+  transformNode,
+  genData
+};
+
+/*  */
+
+function transformNode$1 (el, options) {
+  const warn = options.warn || baseWarn;
+  const staticStyle = getAndRemoveAttr(el, 'style');
+  if (staticStyle) {
+    /* istanbul ignore if */
+    {
+      const res = parseText(staticStyle, options.delimiters);
+      if (res) {
+        warn(
+          `style="${staticStyle}": ` +
+          'Interpolation inside attributes has been removed. ' +
+          'Use v-bind or the colon shorthand instead. For example, ' +
+          'instead of <div style="{{ val }}">, use <div :style="val">.',
+          el.rawAttrsMap['style']
+        );
+      }
+    }
+    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
+  }
+
+  const styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
+  if (styleBinding) {
+    el.styleBinding = styleBinding;
+  }
+}
+
+function genData$1 (el) {
+  let data = '';
+  if (el.staticStyle) {
+    data += `staticStyle:${el.staticStyle},`;
+  }
+  if (el.styleBinding) {
+    data += `style:(${el.styleBinding}),`;
+  }
+  return data
+}
+
+var style$1 = {
+  staticKeys: ['staticStyle'],
+  transformNode: transformNode$1,
+  genData: genData$1
+};
+
+/*  */
+
+let decoder;
+
+var he = {
+  decode (html) {
+    decoder = decoder || document.createElement('div');
+    decoder.innerHTML = html;
+    return decoder.textContent
+  }
+};
+
+/*  */
+
+const isUnaryTag = makeMap(
+  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
+  'link,meta,param,source,track,wbr'
+);
+
+// Elements that you can, intentionally, leave open
+// (and which close themselves)
+const canBeLeftOpenTag = makeMap(
+  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source'
+);
+
+// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
+// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
+const isNonPhrasingTag = makeMap(
+  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
+  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
+  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
+  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
+  'title,tr,track'
+);
+
+/**
+ * Not type-checking this file because it's mostly vendor code.
+ */
+
+// Regular Expressions for parsing tags and attributes
+const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeLetters}]*`;
+const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
+const startTagOpen = new RegExp(`^<${qnameCapture}`);
+const startTagClose = /^\s*(\/?)>/;
+const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`);
+const doctype = /^<!DOCTYPE [^>]+>/i;
+// #7298: escape - to avoid being pased as HTML comment when inlined in page
+const comment = /^<!\--/;
+const conditionalComment = /^<!\[/;
+
+// Special Elements (can contain anything)
+const isPlainTextElement = makeMap('script,style,textarea', true);
+const reCache = {};
+
+const decodingMap = {
+  '&lt;': '<',
+  '&gt;': '>',
+  '&quot;': '"',
+  '&amp;': '&',
+  '&#10;': '\n',
+  '&#9;': '\t'
+};
+const encodedAttr = /&(?:lt|gt|quot|amp);/g;
+const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+
+// #5992
+const isIgnoreNewlineTag = makeMap('pre,textarea', true);
+const shouldIgnoreFirstNewline = (tag, html) => tag && isIgnoreNewlineTag(tag) && html[0] === '\n';
+
+function decodeAttr (value, shouldDecodeNewlines) {
+  const re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
+  return value.replace(re, match => decodingMap[match])
+}
+
+function parseHTML (html, options) {
+  const stack = [];
+  const expectHTML = options.expectHTML;
+  const isUnaryTag$$1 = options.isUnaryTag || no;
+  const canBeLeftOpenTag$$1 = options.canBeLeftOpenTag || no;
+  let index = 0;
+  let last, lastTag;
+  while (html) {
+    last = html;
+    // Make sure we're not in a plaintext content element like script/style
+    if (!lastTag || !isPlainTextElement(lastTag)) {
+      let textEnd = html.indexOf('<');
+      if (textEnd === 0) {
+        // Comment:
+        if (comment.test(html)) {
+          const commentEnd = html.indexOf('-->');
+
+          if (commentEnd >= 0) {
+            if (options.shouldKeepComment) {
+              options.comment(html.substring(4, commentEnd), index, index + commentEnd + 3);
+            }
+            advance(commentEnd + 3);
+            continue
+          }
+        }
+
+        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
+        if (conditionalComment.test(html)) {
+          const conditionalEnd = html.indexOf(']>');
+
+          if (conditionalEnd >= 0) {
+            advance(conditionalEnd + 2);
+            continue
+          }
+        }
+
+        // Doctype:
+        const doctypeMatch = html.match(doctype);
+        if (doctypeMatch) {
+          advance(doctypeMatch[0].length);
+          continue
+        }
+
+        // End tag:
+        const endTagMatch = html.match(endTag);
+        if (endTagMatch) {
+          const curIndex = index;
+          advance(endTagMatch[0].length);
+          parseEndTag(endTagMatch[1], curIndex, index);
+          continue
+        }
+
+        // Start tag:
+        const startTagMatch = parseStartTag();
+        if (startTagMatch) {
+          handleStartTag(startTagMatch);
+          if (shouldIgnoreFirstNewline(startTagMatch.tagName, html)) {
+            advance(1);
+          }
+          continue
+        }
+      }
+
+      let text, rest, next;
+      if (textEnd >= 0) {
+        rest = html.slice(textEnd);
+        while (
+          !endTag.test(rest) &&
+          !startTagOpen.test(rest) &&
+          !comment.test(rest) &&
+          !conditionalComment.test(rest)
+        ) {
+          // < in plain text, be forgiving and treat it as text
+          next = rest.indexOf('<', 1);
+          if (next < 0) break
+          textEnd += next;
+          rest = html.slice(textEnd);
+        }
+        text = html.substring(0, textEnd);
+      }
+
+      if (textEnd < 0) {
+        text = html;
+      }
+
+      if (text) {
+        advance(text.length);
+      }
+
+      if (options.chars && text) {
+        options.chars(text, index - text.length, index);
+      }
+    } else {
+      let endTagLength = 0;
+      const stackedTag = lastTag.toLowerCase();
+      const reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
+      const rest = html.replace(reStackedTag, function (all, text, endTag) {
+        endTagLength = endTag.length;
+        if (!isPlainTextElement(stackedTag) && stackedTag !== 'noscript') {
+          text = text
+            .replace(/<!\--([\s\S]*?)-->/g, '$1') // #7298
+            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
+        }
+        if (shouldIgnoreFirstNewline(stackedTag, text)) {
+          text = text.slice(1);
+        }
+        if (options.chars) {
+          options.chars(text);
+        }
+        return ''
+      });
+      index += html.length - rest.length;
+      html = rest;
+      parseEndTag(stackedTag, index - endTagLength, index);
+    }
+
+    if (html === last) {
+      options.chars && options.chars(html);
+      if (!stack.length && options.warn) {
+        options.warn(`Mal-formatted tag at end of template: "${html}"`, { start: index + html.length });
+      }
+      break
+    }
+  }
+
+  // Clean up any remaining tags
+  parseEndTag();
+
+  function advance (n) {
+    index += n;
+    html = html.substring(n);
+  }
+
+  function parseStartTag () {
+    const start = html.match(startTagOpen);
+    if (start) {
+      const match = {
+        tagName: start[1],
+        attrs: [],
+        start: index
+      };
+      advance(start[0].length);
+      let end, attr;
+      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        attr.start = index;
+        advance(attr[0].length);
+        attr.end = index;
+        match.attrs.push(attr);
+      }
+      if (end) {
+        match.unarySlash = end[1];
+        advance(end[0].length);
+        match.end = index;
+        return match
+      }
+    }
+  }
+
+  function handleStartTag (match) {
+    const tagName = match.tagName;
+    const unarySlash = match.unarySlash;
+
+    if (expectHTML) {
+      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
+        parseEndTag(lastTag);
+      }
+      if (canBeLeftOpenTag$$1(tagName) && lastTag === tagName) {
+        parseEndTag(tagName);
+      }
+    }
+
+    const unary = isUnaryTag$$1(tagName) || !!unarySlash;
+
+    const l = match.attrs.length;
+    const attrs = new Array(l);
+    for (let i = 0; i < l; i++) {
+      const args = match.attrs[i];
+      const value = args[3] || args[4] || args[5] || '';
+      const shouldDecodeNewlines = tagName === 'a' && args[1] === 'href'
+        ? options.shouldDecodeNewlinesForHref
+        : options.shouldDecodeNewlines;
+      attrs[i] = {
+        name: args[1],
+        value: decodeAttr(value, shouldDecodeNewlines)
+      };
+      if (options.outputSourceRange) {
+        attrs[i].start = args.start + args[0].match(/^\s*/).length;
+        attrs[i].end = args.end;
+      }
+    }
+
+    if (!unary) {
+      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs, start: match.start, end: match.end });
+      lastTag = tagName;
+    }
+
+    if (options.start) {
+      options.start(tagName, attrs, unary, match.start, match.end);
+    }
+  }
+
+  function parseEndTag (tagName, start, end) {
+    let pos, lowerCasedTagName;
+    if (start == null) start = index;
+    if (end == null) end = index;
+
+    // Find the closest opened tag of the same type
+    if (tagName) {
+      lowerCasedTagName = tagName.toLowerCase();
+      for (pos = stack.length - 1; pos >= 0; pos--) {
+        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
+          break
+        }
+      }
+    } else {
+      // If no tag name is provided, clean shop
+      pos = 0;
+    }
+
+    if (pos >= 0) {
+      // Close all the open elements, up the stack
+      for (let i = stack.length - 1; i >= pos; i--) {
+        if (i > pos || !tagName &&
+          options.warn
+        ) {
+          options.warn(
+            `tag <${stack[i].tag}> has no matching end tag.`,
+            { start: stack[i].start }
+          );
+        }
+        if (options.end) {
+          options.end(stack[i].tag, start, end);
+        }
+      }
+
+      // Remove the open elements from the stack
+      stack.length = pos;
+      lastTag = pos && stack[pos - 1].tag;
+    } else if (lowerCasedTagName === 'br') {
+      if (options.start) {
+        options.start(tagName, [], true, start, end);
+      }
+    } else if (lowerCasedTagName === 'p') {
+      if (options.start) {
+        options.start(tagName, [], false, start, end);
+      }
+      if (options.end) {
+        options.end(tagName, start, end);
+      }
+    }
+  }
+}
+
+/*  */
+
+const onRE = /^@|^v-on:/;
+const dirRE = /^v-|^@|^:|^\./;
+const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
+const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
+const stripParensRE = /^\(|\)$/g;
+const dynamicArgRE = /^\[.*\]$/;
+
+const argRE = /:(.*)$/;
+const bindRE = /^:|^\.|^v-bind:/;
+const propBindRE = /^\./;
+const modifierRE = /\.[^.]+/g;
+
+const slotRE = /^v-slot(:|$)|^#/;
+
+const lineBreakRE = /[\r\n]/;
+const whitespaceRE$1 = /\s+/g;
+
+const decodeHTMLCached = cached(he.decode);
+
+// configurable state
+let warn$2;
+let delimiters;
+let transforms;
+let preTransforms;
+let postTransforms;
+let platformIsPreTag;
+let platformMustUseProp;
+let platformGetTagNamespace;
+let maybeComponent;
+
+function createASTElement (
+  tag,
+  attrs,
+  parent
+) {
+  return {
+    type: 1,
+    tag,
+    attrsList: attrs,
+    attrsMap: makeAttrsMap(attrs),
+    rawAttrsMap: {},
+    parent,
+    children: []
+  }
+}
+
+/**
+ * Convert HTML string to AST.
+ */
+function parse (
+  template,
+  options
+) {
+  warn$2 = options.warn || baseWarn;
+
+  platformIsPreTag = options.isPreTag || no;
+  platformMustUseProp = options.mustUseProp || no;
+  platformGetTagNamespace = options.getTagNamespace || no;
+  const isReservedTag = options.isReservedTag || no;
+  maybeComponent = (el) => !!el.component || !isReservedTag(el.tag);
+
+  transforms = pluckModuleFunction(options.modules, 'transformNode');
+  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
+  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
+
+  delimiters = options.delimiters;
+
+  const stack = [];
+  const preserveWhitespace = options.preserveWhitespace !== false;
+  const whitespaceOption = options.whitespace;
+  let root;
+  let currentParent;
+  let inVPre = false;
+  let inPre = false;
+  let warned = false;
+
+  function warnOnce (msg, range) {
+    if (!warned) {
+      warned = true;
+      warn$2(msg, range);
+    }
+  }
+
+  function closeElement (element) {
+    if (!inVPre && !element.processed) {
+      element = processElement(element, options);
+    }
+    // tree management
+    if (!stack.length && element !== root) {
+      // allow root elements with v-if, v-else-if and v-else
+      if (root.if && (element.elseif || element.else)) {
+        {
+          checkRootConstraints(element);
+        }
+        addIfCondition(root, {
+          exp: element.elseif,
+          block: element
+        });
+      } else {
+        warnOnce(
+          `Component template should contain exactly one root element. ` +
+          `If you are using v-if on multiple elements, ` +
+          `use v-else-if to chain them instead.`,
+          { start: element.start }
+        );
+      }
+    }
+    if (currentParent && !element.forbidden) {
+      if (element.elseif || element.else) {
+        processIfConditions(element, currentParent);
+      } else if (element.slotScope) { // scoped slot
+        const name = element.slotTarget || '"default"'
+        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+      } else {
+        currentParent.children.push(element);
+        element.parent = currentParent;
+      }
+    }
+    // check pre state
+    if (element.pre) {
+      inVPre = false;
+    }
+    if (platformIsPreTag(element.tag)) {
+      inPre = false;
+    }
+    // apply post-transforms
+    for (let i = 0; i < postTransforms.length; i++) {
+      postTransforms[i](element, options);
+    }
+  }
+
+  function checkRootConstraints (el) {
+    if (el.tag === 'slot' || el.tag === 'template') {
+      warnOnce(
+        `Cannot use <${el.tag}> as component root element because it may ` +
+        'contain multiple nodes.',
+        { start: el.start }
+      );
+    }
+    if (el.attrsMap.hasOwnProperty('v-for')) {
+      warnOnce(
+        'Cannot use v-for on stateful component root element because ' +
+        'it renders multiple elements.',
+        el.rawAttrsMap['v-for']
+      );
+    }
+  }
+
+  parseHTML(template, {
+    warn: warn$2,
+    expectHTML: options.expectHTML,
+    isUnaryTag: options.isUnaryTag,
+    canBeLeftOpenTag: options.canBeLeftOpenTag,
+    shouldDecodeNewlines: options.shouldDecodeNewlines,
+    shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
+    shouldKeepComment: options.comments,
+    outputSourceRange: options.outputSourceRange,
+    start (tag, attrs, unary, start) {
+      // check namespace.
+      // inherit parent ns if there is one
+      const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
+
+      // handle IE svg bug
+      /* istanbul ignore if */
+      if (isIE && ns === 'svg') {
+        attrs = guardIESVGBug(attrs);
+      }
+
+      let element = createASTElement(tag, attrs, currentParent);
+      if (ns) {
+        element.ns = ns;
+      }
+
+      if (options.outputSourceRange) {
+        element.start = start;
+        element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
+          cumulated[attr.name] = attr;
+          return cumulated
+        }, {});
+      }
+
+      if (isForbiddenTag(element) && !isServerRendering()) {
+        element.forbidden = true;
+        warn$2(
+          'Templates should only be responsible for mapping the state to the ' +
+          'UI. Avoid placing tags with side-effects in your templates, such as ' +
+          `<${tag}>` + ', as they will not be parsed.',
+          { start: element.start }
+        );
+      }
+
+      // apply pre-transforms
+      for (let i = 0; i < preTransforms.length; i++) {
+        element = preTransforms[i](element, options) || element;
+      }
+
+      if (!inVPre) {
+        processPre(element);
+        if (element.pre) {
+          inVPre = true;
+        }
+      }
+      if (platformIsPreTag(element.tag)) {
+        inPre = true;
+      }
+      if (inVPre) {
+        processRawAttrs(element);
+      } else if (!element.processed) {
+        // structural directives
+        processFor(element);
+        processIf(element);
+        processOnce(element);
+      }
+
+      if (!root) {
+        root = element;
+        {
+          checkRootConstraints(root);
+        }
+      }
+
+      if (!unary) {
+        currentParent = element;
+        stack.push(element);
+      } else {
+        closeElement(element);
+      }
+    },
+
+    end (tag, start, end) {
+      const element = stack[stack.length - 1];
+      if (!inPre) {
+        // remove trailing whitespace node
+        const lastNode = element.children[element.children.length - 1];
+        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
+          element.children.pop();
+        }
+      }
+      // pop stack
+      stack.length -= 1;
+      currentParent = stack[stack.length - 1];
+      if (options.outputSourceRange) {
+        element.end = end;
+      }
+      closeElement(element);
+    },
+
+    chars (text, start, end) {
+      if (!currentParent) {
+        {
+          if (text === template) {
+            warnOnce(
+              'Component template requires a root element, rather than just text.',
+              { start }
+            );
+          } else if ((text = text.trim())) {
+            warnOnce(
+              `text "${text}" outside root element will be ignored.`,
+              { start }
+            );
+          }
+        }
+        return
+      }
+      // IE textarea placeholder bug
+      /* istanbul ignore if */
+      if (isIE &&
+        currentParent.tag === 'textarea' &&
+        currentParent.attrsMap.placeholder === text
+      ) {
+        return
+      }
+      const children = currentParent.children;
+      if (inPre || text.trim()) {
+        text = isTextTag(currentParent) ? text : decodeHTMLCached(text);
+      } else if (!children.length) {
+        // remove the whitespace-only node right after an opening tag
+        text = '';
+      } else if (whitespaceOption) {
+        if (whitespaceOption === 'condense') {
+          // in condense mode, remove the whitespace node if it contains
+          // line break, otherwise condense to a single space
+          text = lineBreakRE.test(text) ? '' : ' ';
+        } else {
+          text = ' ';
+        }
+      } else {
+        text = preserveWhitespace ? ' ' : '';
+      }
+      if (text) {
+        if (whitespaceOption === 'condense') {
+          // condense consecutive whitespaces into single space
+          text = text.replace(whitespaceRE$1, ' ');
+        }
+        let res;
+        let child;
+        if (!inVPre && text !== ' ' && (res = parseText(text, delimiters))) {
+          child = {
+            type: 2,
+            expression: res.expression,
+            tokens: res.tokens,
+            text
+          };
+        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
+          child = {
+            type: 3,
+            text
+          };
+        }
+        if (child) {
+          if (options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          children.push(child);
+        }
+      }
+    },
+    comment (text, start, end) {
+      const child = {
+        type: 3,
+        text,
+        isComment: true
+      };
+      if (options.outputSourceRange) {
+        child.start = start;
+        child.end = end;
+      }
+      currentParent.children.push(child);
+    }
+  });
+  return root
+}
+
+function processPre (el) {
+  if (getAndRemoveAttr(el, 'v-pre') != null) {
+    el.pre = true;
+  }
+}
+
+function processRawAttrs (el) {
+  const list = el.attrsList;
+  const len = list.length;
+  if (len) {
+    const attrs = el.attrs = new Array(len);
+    for (let i = 0; i < len; i++) {
+      attrs[i] = {
+        name: list[i].name,
+        value: JSON.stringify(list[i].value)
+      };
+      if (list[i].start != null) {
+        attrs[i].start = list[i].start;
+        attrs[i].end = list[i].end;
+      }
+    }
+  } else if (!el.pre) {
+    // non root node in pre blocks with no attributes
+    el.plain = true;
+  }
+}
+
+function processElement (
+  element,
+  options
+) {
+  processKey(element);
+
+  // determine whether this is a plain element after
+  // removing structural attributes
+  element.plain = (
+    !element.key &&
+    !element.scopedSlots &&
+    !element.attrsList.length
+  );
+
+  processRef(element);
+  processSlotContent(element);
+  processSlotOutlet(element);
+  processComponent(element);
+  for (let i = 0; i < transforms.length; i++) {
+    element = transforms[i](element, options) || element;
+  }
+  processAttrs(element);
+  return element
+}
+
+function processKey (el) {
+  const exp = getBindingAttr(el, 'key');
+  if (exp) {
+    {
+      if (el.tag === 'template') {
+        warn$2(
+          `<template> cannot be keyed. Place the key on real elements instead.`,
+          getRawBindingAttr(el, 'key')
+        );
+      }
+      if (el.for) {
+        const iterator = el.iterator2 || el.iterator1;
+        const parent = el.parent;
+        if (iterator && iterator === exp && parent && parent.tag === 'transition-group') {
+          warn$2(
+            `Do not use v-for index as key on <transition-group> children, ` +
+            `this is the same as not using keys.`,
+            getRawBindingAttr(el, 'key'),
+            true /* tip */
+          );
+        }
+      }
+    }
+    el.key = exp;
+  }
+}
+
+function processRef (el) {
+  const ref = getBindingAttr(el, 'ref');
+  if (ref) {
+    el.ref = ref;
+    el.refInFor = checkInFor(el);
+  }
+}
+
+function processFor (el) {
+  let exp;
+  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
+    const res = parseFor(exp);
+    if (res) {
+      extend(el, res);
+    } else {
+      warn$2(
+        `Invalid v-for expression: ${exp}`,
+        el.rawAttrsMap['v-for']
+      );
+    }
+  }
+}
+
+
+
+function parseFor (exp) {
+  const inMatch = exp.match(forAliasRE);
+  if (!inMatch) return
+  const res = {};
+  res.for = inMatch[2].trim();
+  const alias = inMatch[1].trim().replace(stripParensRE, '');
+  const iteratorMatch = alias.match(forIteratorRE);
+  if (iteratorMatch) {
+    res.alias = alias.replace(forIteratorRE, '').trim();
+    res.iterator1 = iteratorMatch[1].trim();
+    if (iteratorMatch[2]) {
+      res.iterator2 = iteratorMatch[2].trim();
+    }
+  } else {
+    res.alias = alias;
+  }
+  return res
+}
+
+function processIf (el) {
+  const exp = getAndRemoveAttr(el, 'v-if');
+  if (exp) {
+    el.if = exp;
+    addIfCondition(el, {
+      exp: exp,
+      block: el
+    });
+  } else {
+    if (getAndRemoveAttr(el, 'v-else') != null) {
+      el.else = true;
+    }
+    const elseif = getAndRemoveAttr(el, 'v-else-if');
+    if (elseif) {
+      el.elseif = elseif;
+    }
+  }
+}
+
+function processIfConditions (el, parent) {
+  const prev = findPrevElement(parent.children);
+  if (prev && prev.if) {
+    addIfCondition(prev, {
+      exp: el.elseif,
+      block: el
+    });
+  } else {
+    warn$2(
+      `v-${el.elseif ? ('else-if="' + el.elseif + '"') : 'else'} ` +
+      `used on element <${el.tag}> without corresponding v-if.`,
+      el.rawAttrsMap[el.elseif ? 'v-else-if' : 'v-else']
+    );
+  }
+}
+
+function findPrevElement (children) {
+  let i = children.length;
+  while (i--) {
+    if (children[i].type === 1) {
+      return children[i]
+    } else {
+      if (children[i].text !== ' ') {
+        warn$2(
+          `text "${children[i].text.trim()}" between v-if and v-else(-if) ` +
+          `will be ignored.`,
+          children[i]
+        );
+      }
+      children.pop();
+    }
+  }
+}
+
+function addIfCondition (el, condition) {
+  if (!el.ifConditions) {
+    el.ifConditions = [];
+  }
+  el.ifConditions.push(condition);
+}
+
+function processOnce (el) {
+  const once$$1 = getAndRemoveAttr(el, 'v-once');
+  if (once$$1 != null) {
+    el.once = true;
+  }
+}
+
+// handle content being passed to a component as slot,
+// e.g. <template slot="xxx">, <div slot-scope="xxx">
+function processSlotContent (el) {
+  let slotScope;
+  if (el.tag === 'template') {
+    slotScope = getAndRemoveAttr(el, 'scope');
+    /* istanbul ignore if */
+    if (slotScope) {
+      warn$2(
+        `the "scope" attribute for scoped slots have been deprecated and ` +
+        `replaced by "slot-scope" since 2.5. The new "slot-scope" attribute ` +
+        `can also be used on plain elements in addition to <template> to ` +
+        `denote scoped slots.`,
+        el.rawAttrsMap['scope'],
+        true
+      );
+    }
+    el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
+  } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
+    /* istanbul ignore if */
+    if (el.attrsMap['v-for']) {
+      warn$2(
+        `Ambiguous combined usage of slot-scope and v-for on <${el.tag}> ` +
+        `(v-for takes higher priority). Use a wrapper <template> for the ` +
+        `scoped slot to make it clearer.`,
+        el.rawAttrsMap['slot-scope'],
+        true
+      );
+    }
+    el.slotScope = slotScope;
+  }
+
+  // slot="xxx"
+  const slotTarget = getBindingAttr(el, 'slot');
+  if (slotTarget) {
+    el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
+    // preserve slot as an attribute for native shadow DOM compat
+    // only for non-scoped slots.
+    if (el.tag !== 'template' && !el.slotScope) {
+      addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
+    }
+  }
+
+  // 2.6 v-slot syntax
+  {
+    if (el.tag === 'template') {
+      // v-slot on <template>
+      const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding) {
+        {
+          if (el.slotTarget || el.slotScope) {
+            warn$2(
+              `Unexpected mixed usage of different slot syntaxes.`,
+              el
+            );
+          }
+        }
+        const { name, dynamic } = getSlotName(slotBinding);
+        el.slotTarget = name;
+        el.slotTargetDynamic = dynamic;
+        el.slotScope = slotBinding.value || `_`; // force it into a scoped slot for perf
+      }
+    } else {
+      // v-slot on component, denotes default slot
+      const slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding) {
+        {
+          if (!maybeComponent(el)) {
+            warn$2(
+              `v-slot can only be used on components or <template>.`,
+              slotBinding
+            );
+          }
+          if (el.slotScope || el.slotTarget) {
+            warn$2(
+              `Unexpected mixed usage of different slot syntaxes.`,
+              el
+            );
+          }
+          if (el.scopedSlots) {
+            warn$2(
+              `To avoid scope ambiguity, the default slot should also use ` +
+              `<template> syntax when there are other named slots.`,
+              slotBinding
+            );
+          }
+        }
+        // add the component's children to its default slot
+        const slots = el.scopedSlots || (el.scopedSlots = {});
+        const { name, dynamic } = getSlotName(slotBinding);
+        const slotContainer = slots[name] = createASTElement('template', [], el);
+        slotContainer.slotTargetDynamic = dynamic;
+        slotContainer.children = el.children;
+        slotContainer.slotScope = slotBinding.value || `_`;
+        // remove children as they are returned from scopedSlots now
+        el.children = [];
+        // mark el non-plain so data gets generated
+        el.plain = false;
+      }
+    }
+  }
+}
+
+function getSlotName (binding) {
+  let name = binding.name.replace(slotRE, '');
+  if (!name) {
+    if (binding.name[0] !== '#') {
+      name = 'default';
+    } else {
+      warn$2(
+        `v-slot shorthand syntax requires a slot name.`,
+        binding
+      );
+    }
+  }
+  return dynamicArgRE.test(name)
+    // dynamic [name]
+    ? { name: name.slice(1, -1), dynamic: true }
+    // static name
+    : { name: `"${name}"`, dynamic: false }
+}
+
+// handle <slot/> outlets
+function processSlotOutlet (el) {
+  if (el.tag === 'slot') {
+    el.slotName = getBindingAttr(el, 'name');
+    if (el.key) {
+      warn$2(
+        `\`key\` does not work on <slot> because slots are abstract outlets ` +
+        `and can possibly expand into multiple elements. ` +
+        `Use the key on a wrapping element instead.`,
+        getRawBindingAttr(el, 'key')
+      );
+    }
+  }
+}
+
+function processComponent (el) {
+  let binding;
+  if ((binding = getBindingAttr(el, 'is'))) {
+    el.component = binding;
+  }
+  if (getAndRemoveAttr(el, 'inline-template') != null) {
+    el.inlineTemplate = true;
+  }
+}
+
+function processAttrs (el) {
+  const list = el.attrsList;
+  let i, l, name, rawName, value, modifiers, syncGen, isDynamic;
+  for (i = 0, l = list.length; i < l; i++) {
+    name = rawName = list[i].name;
+    value = list[i].value;
+    if (dirRE.test(name)) {
+      // mark element as dynamic
+      el.hasBindings = true;
+      // modifiers
+      modifiers = parseModifiers(name.replace(dirRE, ''));
+      // support .foo shorthand syntax for the .prop modifier
+      if (propBindRE.test(name)) {
+        (modifiers || (modifiers = {})).prop = true;
+        name = `.` + name.slice(1).replace(modifierRE, '');
+      } else if (modifiers) {
+        name = name.replace(modifierRE, '');
+      }
+      if (bindRE.test(name)) { // v-bind
+        name = name.replace(bindRE, '');
+        value = parseFilters(value);
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
+        if (
+          value.trim().length === 0
+        ) {
+          warn$2(
+            `The value for a v-bind expression cannot be empty. Found in "v-bind:${name}"`
+          );
+        }
+        if (modifiers) {
+          if (modifiers.prop && !isDynamic) {
+            name = camelize(name);
+            if (name === 'innerHtml') name = 'innerHTML';
+          }
+          if (modifiers.camel && !isDynamic) {
+            name = camelize(name);
+          }
+          if (modifiers.sync) {
+            syncGen = genAssignmentCode(value, `$event`);
+            if (!isDynamic) {
+              addHandler(
+                el,
+                `update:${camelize(name)}`,
+                syncGen,
+                null,
+                false,
+                warn$2,
+                list[i]
+              );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  `update:${hyphenate(name)}`,
+                  syncGen,
+                  null,
+                  false,
+                  warn$2,
+                  list[i]
+                );
+              }
+            } else {
+              // handler w/ dynamic event name
+              addHandler(
+                el,
+                `"update:"+(${name})`,
+                syncGen,
+                null,
+                false,
+                warn$2,
+                list[i],
+                true // dynamic
+              );
+            }
+          }
+        }
+        if ((modifiers && modifiers.prop) || (
+          !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
+        )) {
+          addProp(el, name, value, list[i], isDynamic);
+        } else {
+          addAttr(el, name, value, list[i], isDynamic);
+        }
+      } else if (onRE.test(name)) { // v-on
+        name = name.replace(onRE, '');
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
+        addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
+      } else { // normal directives
+        name = name.replace(dirRE, '');
+        // parse arg
+        const argMatch = name.match(argRE);
+        let arg = argMatch && argMatch[1];
+        isDynamic = false;
+        if (arg) {
+          name = name.slice(0, -(arg.length + 1));
+          if (dynamicArgRE.test(arg)) {
+            arg = arg.slice(1, -1);
+            isDynamic = true;
+          }
+        }
+        addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
+        if (name === 'model') {
+          checkForAliasModel(el, value);
+        }
+      }
+    } else {
+      // literal attribute
+      {
+        const res = parseText(value, delimiters);
+        if (res) {
+          warn$2(
+            `${name}="${value}": ` +
+            'Interpolation inside attributes has been removed. ' +
+            'Use v-bind or the colon shorthand instead. For example, ' +
+            'instead of <div id="{{ val }}">, use <div :id="val">.',
+            list[i]
+          );
+        }
+      }
+      addAttr(el, name, JSON.stringify(value), list[i]);
+      // #6887 firefox doesn't update muted state if set via attribute
+      // even immediately after element creation
+      if (!el.component &&
+          name === 'muted' &&
+          platformMustUseProp(el.tag, el.attrsMap.type, name)) {
+        addProp(el, name, 'true', list[i]);
+      }
+    }
+  }
+}
+
+function checkInFor (el) {
+  let parent = el;
+  while (parent) {
+    if (parent.for !== undefined) {
+      return true
+    }
+    parent = parent.parent;
+  }
+  return false
+}
+
+function parseModifiers (name) {
+  const match = name.match(modifierRE);
+  if (match) {
+    const ret = {};
+    match.forEach(m => { ret[m.slice(1)] = true; });
+    return ret
+  }
+}
+
+function makeAttrsMap (attrs) {
+  const map = {};
+  for (let i = 0, l = attrs.length; i < l; i++) {
+    if (
+      map[attrs[i].name] && !isIE && !isEdge
+    ) {
+      warn$2('duplicate attribute: ' + attrs[i].name, attrs[i]);
+    }
+    map[attrs[i].name] = attrs[i].value;
+  }
+  return map
+}
+
+// for script (e.g. type="x/template") or style, do not decode content
+function isTextTag (el) {
+  return el.tag === 'script' || el.tag === 'style'
+}
+
+function isForbiddenTag (el) {
+  return (
+    el.tag === 'style' ||
+    (el.tag === 'script' && (
+      !el.attrsMap.type ||
+      el.attrsMap.type === 'text/javascript'
+    ))
+  )
+}
+
+const ieNSBug = /^xmlns:NS\d+/;
+const ieNSPrefix = /^NS\d+:/;
+
+/* istanbul ignore next */
+function guardIESVGBug (attrs) {
+  const res = [];
+  for (let i = 0; i < attrs.length; i++) {
+    const attr = attrs[i];
+    if (!ieNSBug.test(attr.name)) {
+      attr.name = attr.name.replace(ieNSPrefix, '');
+      res.push(attr);
+    }
+  }
+  return res
+}
+
+function checkForAliasModel (el, value) {
+  let _el = el;
+  while (_el) {
+    if (_el.for && _el.alias === value) {
+      warn$2(
+        `<${el.tag} v-model="${value}">: ` +
+        `You are binding v-model directly to a v-for iteration alias. ` +
+        `This will not be able to modify the v-for source array because ` +
+        `writing to the alias is like modifying a function local variable. ` +
+        `Consider using an array of objects and use v-model on an object property instead.`,
+        el.rawAttrsMap['v-model']
+      );
+    }
+    _el = _el.parent;
+  }
+}
+
+/*  */
+
+function preTransformNode (el, options) {
+  if (el.tag === 'input') {
+    const map = el.attrsMap;
+    if (!map['v-model']) {
+      return
+    }
+
+    let typeBinding;
+    if (map[':type'] || map['v-bind:type']) {
+      typeBinding = getBindingAttr(el, 'type');
+    }
+    if (!map.type && !typeBinding && map['v-bind']) {
+      typeBinding = `(${map['v-bind']}).type`;
+    }
+
+    if (typeBinding) {
+      const ifCondition = getAndRemoveAttr(el, 'v-if', true);
+      const ifConditionExtra = ifCondition ? `&&(${ifCondition})` : ``;
+      const hasElse = getAndRemoveAttr(el, 'v-else', true) != null;
+      const elseIfCondition = getAndRemoveAttr(el, 'v-else-if', true);
+      // 1. checkbox
+      const branch0 = cloneASTElement(el);
+      // process for on the main node
+      processFor(branch0);
+      addRawAttr(branch0, 'type', 'checkbox');
+      processElement(branch0, options);
+      branch0.processed = true; // prevent it from double-processed
+      branch0.if = `(${typeBinding})==='checkbox'` + ifConditionExtra;
+      addIfCondition(branch0, {
+        exp: branch0.if,
+        block: branch0
+      });
+      // 2. add radio else-if condition
+      const branch1 = cloneASTElement(el);
+      getAndRemoveAttr(branch1, 'v-for', true);
+      addRawAttr(branch1, 'type', 'radio');
+      processElement(branch1, options);
+      addIfCondition(branch0, {
+        exp: `(${typeBinding})==='radio'` + ifConditionExtra,
+        block: branch1
+      });
+      // 3. other
+      const branch2 = cloneASTElement(el);
+      getAndRemoveAttr(branch2, 'v-for', true);
+      addRawAttr(branch2, ':type', typeBinding);
+      processElement(branch2, options);
+      addIfCondition(branch0, {
+        exp: ifCondition,
+        block: branch2
+      });
+
+      if (hasElse) {
+        branch0.else = true;
+      } else if (elseIfCondition) {
+        branch0.elseif = elseIfCondition;
+      }
+
+      return branch0
+    }
+  }
+}
+
+function cloneASTElement (el) {
+  return createASTElement(el.tag, el.attrsList.slice(), el.parent)
+}
+
+var model$1 = {
+  preTransformNode
+};
+
+var modules$1 = [
+  klass$1,
+  style$1,
+  model$1
+];
+
+/*  */
+
+function text (el, dir) {
+  if (dir.value) {
+    addProp(el, 'textContent', `_s(${dir.value})`, dir);
+  }
+}
+
+/*  */
+
+function html (el, dir) {
+  if (dir.value) {
+    addProp(el, 'innerHTML', `_s(${dir.value})`, dir);
+  }
+}
+
+var directives$1 = {
+  model,
+  text,
+  html
+};
+
+/*  */
+
+const baseOptions = {
+  expectHTML: true,
+  modules: modules$1,
+  directives: directives$1,
+  isPreTag,
+  isUnaryTag,
+  mustUseProp,
+  canBeLeftOpenTag,
+  isReservedTag,
+  getTagNamespace,
+  staticKeys: genStaticKeys(modules$1)
+};
+
+/*  */
+
+let isStaticKey;
+let isPlatformReservedTag;
+
+const genStaticKeysCached = cached(genStaticKeys$1);
+
+/**
+ * Goal of the optimizer: walk the generated template AST tree
+ * and detect sub-trees that are purely static, i.e. parts of
+ * the DOM that never needs to change.
+ *
+ * Once we detect these sub-trees, we can:
+ *
+ * 1. Hoist them into constants, so that we no longer need to
+ *    create fresh nodes for them on each re-render;
+ * 2. Completely skip them in the patching process.
+ */
+function optimize (root, options) {
+  if (!root) return
+  isStaticKey = genStaticKeysCached(options.staticKeys || '');
+  isPlatformReservedTag = options.isReservedTag || no;
+  // first pass: mark all non-static nodes.
+  markStatic$1(root);
+  // second pass: mark static roots.
+  markStaticRoots(root, false);
+}
+
+function genStaticKeys$1 (keys) {
+  return makeMap(
+    'type,tag,attrsList,attrsMap,plain,parent,children,attrs,start,end,rawAttrsMap' +
+    (keys ? ',' + keys : '')
+  )
+}
+
+function markStatic$1 (node) {
+  node.static = isStatic(node);
+  if (node.type === 1) {
+    // do not make component slot content static. this avoids
+    // 1. components not able to mutate slot nodes
+    // 2. static slot content fails for hot-reloading
+    if (
+      !isPlatformReservedTag(node.tag) &&
+      node.tag !== 'slot' &&
+      node.attrsMap['inline-template'] == null
+    ) {
+      return
+    }
+    for (let i = 0, l = node.children.length; i < l; i++) {
+      const child = node.children[i];
+      markStatic$1(child);
+      if (!child.static) {
+        node.static = false;
+      }
+    }
+    if (node.ifConditions) {
+      for (let i = 1, l = node.ifConditions.length; i < l; i++) {
+        const block = node.ifConditions[i].block;
+        markStatic$1(block);
+        if (!block.static) {
+          node.static = false;
+        }
+      }
+    }
+  }
+}
+
+function markStaticRoots (node, isInFor) {
+  if (node.type === 1) {
+    if (node.static || node.once) {
+      node.staticInFor = isInFor;
+    }
+    // For a node to qualify as a static root, it should have children that
+    // are not just static text. Otherwise the cost of hoisting out will
+    // outweigh the benefits and it's better off to just always render it fresh.
+    if (node.static && node.children.length && !(
+      node.children.length === 1 &&
+      node.children[0].type === 3
+    )) {
+      node.staticRoot = true;
+      return
+    } else {
+      node.staticRoot = false;
+    }
+    if (node.children) {
+      for (let i = 0, l = node.children.length; i < l; i++) {
+        markStaticRoots(node.children[i], isInFor || !!node.for);
+      }
+    }
+    if (node.ifConditions) {
+      for (let i = 1, l = node.ifConditions.length; i < l; i++) {
+        markStaticRoots(node.ifConditions[i].block, isInFor);
+      }
+    }
+  }
+}
+
+function isStatic (node) {
+  if (node.type === 2) { // expression
+    return false
+  }
+  if (node.type === 3) { // text
+    return true
+  }
+  return !!(node.pre || (
+    !node.hasBindings && // no dynamic bindings
+    !node.if && !node.for && // not v-if or v-for or v-else
+    !isBuiltInTag(node.tag) && // not a built-in
+    isPlatformReservedTag(node.tag) && // not a component
+    !isDirectChildOfTemplateFor(node) &&
+    Object.keys(node).every(isStaticKey)
+  ))
+}
+
+function isDirectChildOfTemplateFor (node) {
+  while (node.parent) {
+    node = node.parent;
+    if (node.tag !== 'template') {
+      return false
+    }
+    if (node.for) {
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+const fnInvokeRE = /\([^)]*?\);*$/;
+const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
+
+// KeyboardEvent.keyCode aliases
+const keyCodes = {
+  esc: 27,
+  tab: 9,
+  enter: 13,
+  space: 32,
+  up: 38,
+  left: 37,
+  right: 39,
+  down: 40,
+  'delete': [8, 46]
+};
+
+// KeyboardEvent.key aliases
+const keyNames = {
+  // #7880: IE11 and Edge use `Esc` for Escape key name.
+  esc: ['Esc', 'Escape'],
+  tab: 'Tab',
+  enter: 'Enter',
+  // #9112: IE11 uses `Spacebar` for Space key name.
+  space: [' ', 'Spacebar'],
+  // #7806: IE11 uses key names without `Arrow` prefix for arrow keys.
+  up: ['Up', 'ArrowUp'],
+  left: ['Left', 'ArrowLeft'],
+  right: ['Right', 'ArrowRight'],
+  down: ['Down', 'ArrowDown'],
+  // #9112: IE11 uses `Del` for Delete key name.
+  'delete': ['Backspace', 'Delete', 'Del']
+};
+
+// #4868: modifiers that prevent the execution of the listener
+// need to explicitly return null so that we can determine whether to remove
+// the listener for .once
+const genGuard = condition => `if(${condition})return null;`;
+
+const modifierCode = {
+  stop: '$event.stopPropagation();',
+  prevent: '$event.preventDefault();',
+  self: genGuard(`$event.target !== $event.currentTarget`),
+  ctrl: genGuard(`!$event.ctrlKey`),
+  shift: genGuard(`!$event.shiftKey`),
+  alt: genGuard(`!$event.altKey`),
+  meta: genGuard(`!$event.metaKey`),
+  left: genGuard(`'button' in $event && $event.button !== 0`),
+  middle: genGuard(`'button' in $event && $event.button !== 1`),
+  right: genGuard(`'button' in $event && $event.button !== 2`)
+};
+
+function genHandlers (
+  events,
+  isNative
+) {
+  const prefix = isNative ? 'nativeOn:' : 'on:';
+  let staticHandlers = ``;
+  let dynamicHandlers = ``;
+  for (const name in events) {
+    const handlerCode = genHandler(events[name]);
+    if (events[name] && events[name].dynamic) {
+      dynamicHandlers += `${name},${handlerCode},`;
+    } else {
+      staticHandlers += `"${name}":${handlerCode},`;
+    }
+  }
+  staticHandlers = `{${staticHandlers.slice(0, -1)}}`;
+  if (dynamicHandlers) {
+    return prefix + `_d(${staticHandlers},[${dynamicHandlers.slice(0, -1)}])`
+  } else {
+    return prefix + staticHandlers
+  }
+}
+
+function genHandler (handler) {
+  if (!handler) {
+    return 'function(){}'
+  }
+
+  if (Array.isArray(handler)) {
+    return `[${handler.map(handler => genHandler(handler)).join(',')}]`
+  }
+
+  const isMethodPath = simplePathRE.test(handler.value);
+  const isFunctionExpression = fnExpRE.test(handler.value);
+  const isFunctionInvocation = simplePathRE.test(handler.value.replace(fnInvokeRE, ''));
+
+  if (!handler.modifiers) {
+    if (isMethodPath || isFunctionExpression) {
+      return handler.value
+    }
+    return `function($event){${
+      isFunctionInvocation ? `return ${handler.value}` : handler.value
+    }}` // inline statement
+  } else {
+    let code = '';
+    let genModifierCode = '';
+    const keys = [];
+    for (const key in handler.modifiers) {
+      if (modifierCode[key]) {
+        genModifierCode += modifierCode[key];
+        // left/right
+        if (keyCodes[key]) {
+          keys.push(key);
+        }
+      } else if (key === 'exact') {
+        const modifiers = (handler.modifiers);
+        genModifierCode += genGuard(
+          ['ctrl', 'shift', 'alt', 'meta']
+            .filter(keyModifier => !modifiers[keyModifier])
+            .map(keyModifier => `$event.${keyModifier}Key`)
+            .join('||')
+        );
+      } else {
+        keys.push(key);
+      }
+    }
+    if (keys.length) {
+      code += genKeyFilter(keys);
+    }
+    // Make sure modifiers like prevent and stop get executed after key filtering
+    if (genModifierCode) {
+      code += genModifierCode;
+    }
+    const handlerCode = isMethodPath
+      ? `return ${handler.value}($event)`
+      : isFunctionExpression
+        ? `return (${handler.value})($event)`
+        : isFunctionInvocation
+          ? `return ${handler.value}`
+          : handler.value;
+    return `function($event){${code}${handlerCode}}`
+  }
+}
+
+function genKeyFilter (keys) {
+  return `if(('keyCode' in $event)&&${keys.map(genFilterCode).join('&&')})return null;`
+}
+
+function genFilterCode (key) {
+  const keyVal = parseInt(key, 10);
+  if (keyVal) {
+    return `$event.keyCode!==${keyVal}`
+  }
+  const keyCode = keyCodes[key];
+  const keyName = keyNames[key];
+  return (
+    `_k($event.keyCode,` +
+    `${JSON.stringify(key)},` +
+    `${JSON.stringify(keyCode)},` +
+    `$event.key,` +
+    `${JSON.stringify(keyName)}` +
+    `)`
+  )
+}
+
+/*  */
+
+function on (el, dir) {
+  if (dir.modifiers) {
+    warn(`v-on without argument does not support modifiers.`);
+  }
+  el.wrapListeners = (code) => `_g(${code},${dir.value})`;
+}
+
+/*  */
+
+function bind$1 (el, dir) {
+  el.wrapData = (code) => {
+    return `_b(${code},'${el.tag}',${dir.value},${
+      dir.modifiers && dir.modifiers.prop ? 'true' : 'false'
+    }${
+      dir.modifiers && dir.modifiers.sync ? ',true' : ''
+    })`
+  };
+}
+
+/*  */
+
+var baseDirectives = {
+  on,
+  bind: bind$1,
+  cloak: noop
+};
+
+/*  */
+
+
+
+
+
+class CodegenState {
+  
+  
+  
+  
+  
+  
+  
+  
+  
+
+  constructor (options) {
+    this.options = options;
+    this.warn = options.warn || baseWarn;
+    this.transforms = pluckModuleFunction(options.modules, 'transformCode');
+    this.dataGenFns = pluckModuleFunction(options.modules, 'genData');
+    this.directives = extend(extend({}, baseDirectives), options.directives);
+    const isReservedTag = options.isReservedTag || no;
+    this.maybeComponent = (el) => !!el.component || !isReservedTag(el.tag);
+    this.onceId = 0;
+    this.staticRenderFns = [];
+    this.pre = false;
+  }
+}
+
+
+
+function generate (
+  ast,
+  options
+) {
+  const state = new CodegenState(options);
+  const code = ast ? genElement(ast, state) : '_c("div")';
+  return {
+    render: `with(this){return ${code}}`,
+    staticRenderFns: state.staticRenderFns
+  }
+}
+
+function genElement (el, state) {
+  if (el.parent) {
+    el.pre = el.pre || el.parent.pre;
+  }
+
+  if (el.staticRoot && !el.staticProcessed) {
+    return genStatic(el, state)
+  } else if (el.once && !el.onceProcessed) {
+    return genOnce(el, state)
+  } else if (el.for && !el.forProcessed) {
+    return genFor(el, state)
+  } else if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.tag === 'template' && !el.slotTarget && !state.pre) {
+    return genChildren(el, state) || 'void 0'
+  } else if (el.tag === 'slot') {
+    return genSlot(el, state)
+  } else {
+    // component or element
+    let code;
+    if (el.component) {
+      code = genComponent(el.component, el, state);
+    } else {
+      let data;
+      if (!el.plain || (el.pre && state.maybeComponent(el))) {
+        data = genData$2(el, state);
+      }
+
+      const children = el.inlineTemplate ? null : genChildren(el, state, true);
+      code = `_c('${el.tag}'${
+        data ? `,${data}` : '' // data
+      }${
+        children ? `,${children}` : '' // children
+      })`;
+    }
+    // module transforms
+    for (let i = 0; i < state.transforms.length; i++) {
+      code = state.transforms[i](el, code);
+    }
+    return code
+  }
+}
+
+// hoist static sub-trees out
+function genStatic (el, state) {
+  el.staticProcessed = true;
+  // Some elements (templates) need to behave differently inside of a v-pre
+  // node.  All pre nodes are static roots, so we can use this as a location to
+  // wrap a state change and reset it upon exiting the pre node.
+  const originalPreState = state.pre;
+  if (el.pre) {
+    state.pre = el.pre;
+  }
+  state.staticRenderFns.push(`with(this){return ${genElement(el, state)}}`);
+  state.pre = originalPreState;
+  return `_m(${
+    state.staticRenderFns.length - 1
+  }${
+    el.staticInFor ? ',true' : ''
+  })`
+}
+
+// v-once
+function genOnce (el, state) {
+  el.onceProcessed = true;
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state)
+  } else if (el.staticInFor) {
+    let key = '';
+    let parent = el.parent;
+    while (parent) {
+      if (parent.for) {
+        key = parent.key;
+        break
+      }
+      parent = parent.parent;
+    }
+    if (!key) {
+      state.warn(
+        `v-once can only be used inside v-for that is keyed. `,
+        el.rawAttrsMap['v-once']
+      );
+      return genElement(el, state)
+    }
+    return `_o(${genElement(el, state)},${state.onceId++},${key})`
+  } else {
+    return genStatic(el, state)
+  }
+}
+
+function genIf (
+  el,
+  state,
+  altGen,
+  altEmpty
+) {
+  el.ifProcessed = true; // avoid recursion
+  return genIfConditions(el.ifConditions.slice(), state, altGen, altEmpty)
+}
+
+function genIfConditions (
+  conditions,
+  state,
+  altGen,
+  altEmpty
+) {
+  if (!conditions.length) {
+    return altEmpty || '_e()'
+  }
+
+  const condition = conditions.shift();
+  if (condition.exp) {
+    return `(${condition.exp})?${
+      genTernaryExp(condition.block)
+    }:${
+      genIfConditions(conditions, state, altGen, altEmpty)
+    }`
+  } else {
+    return `${genTernaryExp(condition.block)}`
+  }
+
+  // v-if with v-once should generate code like (a)?_m(0):_m(1)
+  function genTernaryExp (el) {
+    return altGen
+      ? altGen(el, state)
+      : el.once
+        ? genOnce(el, state)
+        : genElement(el, state)
+  }
+}
+
+function genFor (
+  el,
+  state,
+  altGen,
+  altHelper
+) {
+  const exp = el.for;
+  const alias = el.alias;
+  const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
+  const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
+
+  if (state.maybeComponent(el) &&
+    el.tag !== 'slot' &&
+    el.tag !== 'template' &&
+    !el.key
+  ) {
+    state.warn(
+      `<${el.tag} v-for="${alias} in ${exp}">: component lists rendered with ` +
+      `v-for should have explicit keys. ` +
+      `See https://vuejs.org/guide/list.html#key for more info.`,
+      el.rawAttrsMap['v-for'],
+      true /* tip */
+    );
+  }
+
+  el.forProcessed = true; // avoid recursion
+  return `${altHelper || '_l'}((${exp}),` +
+    `function(${alias}${iterator1}${iterator2}){` +
+      `return ${(altGen || genElement)(el, state)}` +
+    '})'
+}
+
+function genData$2 (el, state) {
+  let data = '{';
+
+  // directives first.
+  // directives may mutate the el's other properties before they are generated.
+  const dirs = genDirectives(el, state);
+  if (dirs) data += dirs + ',';
+
+  // key
+  if (el.key) {
+    data += `key:${el.key},`;
+  }
+  // ref
+  if (el.ref) {
+    data += `ref:${el.ref},`;
+  }
+  if (el.refInFor) {
+    data += `refInFor:true,`;
+  }
+  // pre
+  if (el.pre) {
+    data += `pre:true,`;
+  }
+  // record original tag name for components using "is" attribute
+  if (el.component) {
+    data += `tag:"${el.tag}",`;
+  }
+  // module data generation functions
+  for (let i = 0; i < state.dataGenFns.length; i++) {
+    data += state.dataGenFns[i](el);
+  }
+  // attributes
+  if (el.attrs) {
+    data += `attrs:${genProps(el.attrs)},`;
+  }
+  // DOM props
+  if (el.props) {
+    data += `domProps:${genProps(el.props)},`;
+  }
+  // event handlers
+  if (el.events) {
+    data += `${genHandlers(el.events, false)},`;
+  }
+  if (el.nativeEvents) {
+    data += `${genHandlers(el.nativeEvents, true)},`;
+  }
+  // slot target
+  // only for non-scoped slots
+  if (el.slotTarget && !el.slotScope) {
+    data += `slot:${el.slotTarget},`;
+  }
+  // scoped slots
+  if (el.scopedSlots) {
+    data += `${genScopedSlots(el.scopedSlots, state)},`;
+  }
+  // component v-model
+  if (el.model) {
+    data += `model:{value:${
+      el.model.value
+    },callback:${
+      el.model.callback
+    },expression:${
+      el.model.expression
+    }},`;
+  }
+  // inline-template
+  if (el.inlineTemplate) {
+    const inlineTemplate = genInlineTemplate(el, state);
+    if (inlineTemplate) {
+      data += `${inlineTemplate},`;
+    }
+  }
+  data = data.replace(/,$/, '') + '}';
+  // v-bind dynamic argument wrap
+  // v-bind with dynamic arguments must be applied using the same v-bind object
+  // merge helper so that class/style/mustUseProp attrs are handled correctly.
+  if (el.dynamicAttrs) {
+    data = `_b(${data},"${el.tag}",${genProps(el.dynamicAttrs)})`;
+  }
+  // v-bind data wrap
+  if (el.wrapData) {
+    data = el.wrapData(data);
+  }
+  // v-on data wrap
+  if (el.wrapListeners) {
+    data = el.wrapListeners(data);
+  }
+  return data
+}
+
+function genDirectives (el, state) {
+  const dirs = el.directives;
+  if (!dirs) return
+  let res = 'directives:[';
+  let hasRuntime = false;
+  let i, l, dir, needRuntime;
+  for (i = 0, l = dirs.length; i < l; i++) {
+    dir = dirs[i];
+    needRuntime = true;
+    const gen = state.directives[dir.name];
+    if (gen) {
+      // compile-time directive that manipulates AST.
+      // returns true if it also needs a runtime counterpart.
+      needRuntime = !!gen(el, dir, state.warn);
+    }
+    if (needRuntime) {
+      hasRuntime = true;
+      res += `{name:"${dir.name}",rawName:"${dir.rawName}"${
+        dir.value ? `,value:(${dir.value}),expression:${JSON.stringify(dir.value)}` : ''
+      }${
+        dir.arg ? `,arg:${dir.isDynamicArg ? dir.arg : `"${dir.arg}"`}` : ''
+      }${
+        dir.modifiers ? `,modifiers:${JSON.stringify(dir.modifiers)}` : ''
+      }},`;
+    }
+  }
+  if (hasRuntime) {
+    return res.slice(0, -1) + ']'
+  }
+}
+
+function genInlineTemplate (el, state) {
+  const ast = el.children[0];
+  if (el.children.length !== 1 || ast.type !== 1) {
+    state.warn(
+      'Inline-template components must have exactly one child element.',
+      { start: el.start }
+    );
+  }
+  if (ast.type === 1) {
+    const inlineRenderFns = generate(ast, state.options);
+    return `inlineTemplate:{render:function(){${
+      inlineRenderFns.render
+    }},staticRenderFns:[${
+      inlineRenderFns.staticRenderFns.map(code => `function(){${code}}`).join(',')
+    }]}`
+  }
+}
+
+function genScopedSlots (
+  slots,
+  state
+) {
+  const hasDynamicKeys = Object.keys(slots).some(key => slots[key].slotTargetDynamic);
+  return `scopedSlots:_u([${
+    Object.keys(slots).map(key => {
+      return genScopedSlot(key, slots[key], state)
+    }).join(',')
+  }]${hasDynamicKeys ? `,true` : ``})`
+}
+
+function genScopedSlot (
+  key,
+  el,
+  state
+) {
+  if (el.for && !el.forProcessed) {
+    return genForScopedSlot(key, el, state)
+  }
+  const fn = `function(${String(el.slotScope)}){` +
+    `return ${el.tag === 'template'
+      ? el.if
+        ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
+        : genChildren(el, state) || 'undefined'
+      : genElement(el, state)
+    }}`;
+  return `{key:${key},fn:${fn}}`
+}
+
+function genForScopedSlot (
+  key,
+  el,
+  state
+) {
+  const exp = el.for;
+  const alias = el.alias;
+  const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
+  const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
+  el.forProcessed = true; // avoid recursion
+  return `_l((${exp}),` +
+    `function(${alias}${iterator1}${iterator2}){` +
+      `return ${genScopedSlot(key, el, state)}` +
+    '})'
+}
+
+function genChildren (
+  el,
+  state,
+  checkSkip,
+  altGenElement,
+  altGenNode
+) {
+  const children = el.children;
+  if (children.length) {
+    const el = children[0];
+    // optimize single v-for
+    if (children.length === 1 &&
+      el.for &&
+      el.tag !== 'template' &&
+      el.tag !== 'slot'
+    ) {
+      const normalizationType = checkSkip
+        ? state.maybeComponent(el) ? `,1` : `,0`
+        : ``;
+      return `${(altGenElement || genElement)(el, state)}${normalizationType}`
+    }
+    const normalizationType = checkSkip
+      ? getNormalizationType(children, state.maybeComponent)
+      : 0;
+    const gen = altGenNode || genNode;
+    return `[${children.map(c => gen(c, state)).join(',')}]${
+      normalizationType ? `,${normalizationType}` : ''
+    }`
+  }
+}
+
+// determine the normalization needed for the children array.
+// 0: no normalization needed
+// 1: simple normalization needed (possible 1-level deep nested array)
+// 2: full normalization needed
+function getNormalizationType (
+  children,
+  maybeComponent
+) {
+  let res = 0;
+  for (let i = 0; i < children.length; i++) {
+    const el = children[i];
+    if (el.type !== 1) {
+      continue
+    }
+    if (needsNormalization(el) ||
+        (el.ifConditions && el.ifConditions.some(c => needsNormalization(c.block)))) {
+      res = 2;
+      break
+    }
+    if (maybeComponent(el) ||
+        (el.ifConditions && el.ifConditions.some(c => maybeComponent(c.block)))) {
+      res = 1;
+    }
+  }
+  return res
+}
+
+function needsNormalization (el) {
+  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
+}
+
+function genNode (node, state) {
+  if (node.type === 1) {
+    return genElement(node, state)
+  } else if (node.type === 3 && node.isComment) {
+    return genComment(node)
+  } else {
+    return genText(node)
+  }
+}
+
+function genText (text) {
+  return `_v(${text.type === 2
+    ? text.expression // no need for () because already wrapped in _s()
+    : transformSpecialNewlines(JSON.stringify(text.text))
+  })`
+}
+
+function genComment (comment) {
+  return `_e(${JSON.stringify(comment.text)})`
+}
+
+function genSlot (el, state) {
+  const slotName = el.slotName || '"default"';
+  const children = genChildren(el, state);
+  let res = `_t(${slotName}${children ? `,${children}` : ''}`;
+  const attrs = el.attrs && `{${el.attrs.map(a => `${camelize(a.name)}:${a.value}`).join(',')}}`;
+  const bind$$1 = el.attrsMap['v-bind'];
+  if ((attrs || bind$$1) && !children) {
+    res += `,null`;
+  }
+  if (attrs) {
+    res += `,${attrs}`;
+  }
+  if (bind$$1) {
+    res += `${attrs ? '' : ',null'},${bind$$1}`;
+  }
+  return res + ')'
+}
+
+// componentName is el.component, take it as argument to shun flow's pessimistic refinement
+function genComponent (
+  componentName,
+  el,
+  state
+) {
+  const children = el.inlineTemplate ? null : genChildren(el, state, true);
+  return `_c(${componentName},${genData$2(el, state)}${
+    children ? `,${children}` : ''
+  })`
+}
+
+function genProps (props) {
+  let staticProps = ``;
+  let dynamicProps = ``;
+  for (let i = 0; i < props.length; i++) {
+    const prop = props[i];
+    const value = transformSpecialNewlines(prop.value);
+    if (prop.dynamic) {
+      dynamicProps += `${prop.name},${value},`;
+    } else {
+      staticProps += `"${prop.name}":${value},`;
+    }
+  }
+  staticProps = `{${staticProps.slice(0, -1)}}`;
+  if (dynamicProps) {
+    return `_d(${staticProps},[${dynamicProps.slice(0, -1)}])`
+  } else {
+    return staticProps
+  }
+}
+
+// #3895, #4268
+function transformSpecialNewlines (text) {
+  return text
+    .replace(/\u2028/g, '\\u2028')
+    .replace(/\u2029/g, '\\u2029')
+}
+
+/*  */
+
+
+
+// these keywords should not appear inside expressions, but operators like
+// typeof, instanceof and in are allowed
+const prohibitedKeywordRE = new RegExp('\\b' + (
+  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
+  'super,throw,while,yield,delete,export,import,return,switch,default,' +
+  'extends,finally,continue,debugger,function,arguments'
+).split(',').join('\\b|\\b') + '\\b');
+
+// these unary operators should not be used as property/method names
+const unaryOperatorsRE = new RegExp('\\b' + (
+  'delete,typeof,void'
+).split(',').join('\\s*\\([^\\)]*\\)|\\b') + '\\s*\\([^\\)]*\\)');
+
+// strip strings in expressions
+const stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;
+
+// detect problematic expressions in a template
+function detectErrors (ast, warn) {
+  if (ast) {
+    checkNode(ast, warn);
+  }
+}
+
+function checkNode (node, warn) {
+  if (node.type === 1) {
+    for (const name in node.attrsMap) {
+      if (dirRE.test(name)) {
+        const value = node.attrsMap[name];
+        if (value) {
+          const range = node.rawAttrsMap[name];
+          if (name === 'v-for') {
+            checkFor(node, `v-for="${value}"`, warn, range);
+          } else if (onRE.test(name)) {
+            checkEvent(value, `${name}="${value}"`, warn, range);
+          } else {
+            checkExpression(value, `${name}="${value}"`, warn, range);
+          }
+        }
+      }
+    }
+    if (node.children) {
+      for (let i = 0; i < node.children.length; i++) {
+        checkNode(node.children[i], warn);
+      }
+    }
+  } else if (node.type === 2) {
+    checkExpression(node.expression, node.text, warn, node);
+  }
+}
+
+function checkEvent (exp, text, warn, range) {
+  const stipped = exp.replace(stripStringRE, '');
+  const keywordMatch = stipped.match(unaryOperatorsRE);
+  if (keywordMatch && stipped.charAt(keywordMatch.index - 1) !== '$') {
+    warn(
+      `avoid using JavaScript unary operator as property name: ` +
+      `"${keywordMatch[0]}" in expression ${text.trim()}`,
+      range
+    );
+  }
+  checkExpression(exp, text, warn, range);
+}
+
+function checkFor (node, text, warn, range) {
+  checkExpression(node.for || '', text, warn, range);
+  checkIdentifier(node.alias, 'v-for alias', text, warn, range);
+  checkIdentifier(node.iterator1, 'v-for iterator', text, warn, range);
+  checkIdentifier(node.iterator2, 'v-for iterator', text, warn, range);
+}
+
+function checkIdentifier (
+  ident,
+  type,
+  text,
+  warn,
+  range
+) {
+  if (typeof ident === 'string') {
+    try {
+      new Function(`var ${ident}=_`);
+    } catch (e) {
+      warn(`invalid ${type} "${ident}" in expression: ${text.trim()}`, range);
+    }
+  }
+}
+
+function checkExpression (exp, text, warn, range) {
+  try {
+    new Function(`return ${exp}`);
+  } catch (e) {
+    const keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
+    if (keywordMatch) {
+      warn(
+        `avoid using JavaScript keyword as property name: ` +
+        `"${keywordMatch[0]}"\n  Raw expression: ${text.trim()}`,
+        range
+      );
+    } else {
+      warn(
+        `invalid expression: ${e.message} in\n\n` +
+        `    ${exp}\n\n` +
+        `  Raw expression: ${text.trim()}\n`,
+        range
+      );
+    }
+  }
+}
+
+/*  */
+
+const range = 2;
+
+function generateCodeFrame (
+  source,
+  start = 0,
+  end = source.length
+) {
+  const lines = source.split(/\r?\n/);
+  let count = 0;
+  const res = [];
+  for (let i = 0; i < lines.length; i++) {
+    count += lines[i].length + 1;
+    if (count >= start) {
+      for (let j = i - range; j <= i + range || end > count; j++) {
+        if (j < 0 || j >= lines.length) continue
+        res.push(`${j + 1}${repeat(` `, 3 - String(j + 1).length)}|  ${lines[j]}`);
+        const lineLength = lines[j].length;
+        if (j === i) {
+          // push underline
+          const pad = start - (count - lineLength) + 1;
+          const length = end > count ? lineLength - pad : end - start;
+          res.push(`   |  ` + repeat(` `, pad) + repeat(`^`, length));
+        } else if (j > i) {
+          if (end > count) {
+            const length = Math.min(end - count, lineLength);
+            res.push(`   |  ` + repeat(`^`, length));
+          }
+          count += lineLength + 1;
+        }
+      }
+      break
+    }
+  }
+  return res.join('\n')
+}
+
+function repeat (str, n) {
+  let result = '';
+  while (true) { // eslint-disable-line
+    if (n & 1) result += str;
+    n >>>= 1;
+    if (n <= 0) break
+    str += str;
+  }
+  return result
+}
+
+/*  */
+
+
+
+function createFunction (code, errors) {
+  try {
+    return new Function(code)
+  } catch (err) {
+    errors.push({ err, code });
+    return noop
+  }
+}
+
+function createCompileToFunctionFn (compile) {
+  const cache = Object.create(null);
+
+  return function compileToFunctions (
+    template,
+    options,
+    vm
+  ) {
+    options = extend({}, options);
+    const warn$$1 = options.warn || warn;
+    delete options.warn;
+
+    /* istanbul ignore if */
+    {
+      // detect possible CSP restriction
+      try {
+        new Function('return 1');
+      } catch (e) {
+        if (e.toString().match(/unsafe-eval|CSP/)) {
+          warn$$1(
+            'It seems you are using the standalone build of Vue.js in an ' +
+            'environment with Content Security Policy that prohibits unsafe-eval. ' +
+            'The template compiler cannot work in this environment. Consider ' +
+            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
+            'templates into render functions.'
+          );
+        }
+      }
+    }
+
+    // check cache
+    const key = options.delimiters
+      ? String(options.delimiters) + template
+      : template;
+    if (cache[key]) {
+      return cache[key]
+    }
+
+    // compile
+    const compiled = compile(template, options);
+
+    // check compilation errors/tips
+    {
+      if (compiled.errors && compiled.errors.length) {
+        if (options.outputSourceRange) {
+          compiled.errors.forEach(e => {
+            warn$$1(
+              `Error compiling template:\n\n${e.msg}\n\n` +
+              generateCodeFrame(template, e.start, e.end),
+              vm
+            );
+          });
+        } else {
+          warn$$1(
+            `Error compiling template:\n\n${template}\n\n` +
+            compiled.errors.map(e => `- ${e}`).join('\n') + '\n',
+            vm
+          );
+        }
+      }
+      if (compiled.tips && compiled.tips.length) {
+        if (options.outputSourceRange) {
+          compiled.tips.forEach(e => tip(e.msg, vm));
+        } else {
+          compiled.tips.forEach(msg => tip(msg, vm));
+        }
+      }
+    }
+
+    // turn code into functions
+    const res = {};
+    const fnGenErrors = [];
+    res.render = createFunction(compiled.render, fnGenErrors);
+    res.staticRenderFns = compiled.staticRenderFns.map(code => {
+      return createFunction(code, fnGenErrors)
+    });
+
+    // check function generation errors.
+    // this should only happen if there is a bug in the compiler itself.
+    // mostly for codegen development use
+    /* istanbul ignore if */
+    {
+      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
+        warn$$1(
+          `Failed to generate render function:\n\n` +
+          fnGenErrors.map(({ err, code }) => `${err.toString()} in\n\n${code}\n`).join('\n'),
+          vm
+        );
+      }
+    }
+
+    return (cache[key] = res)
+  }
+}
+
+/*  */
+
+function createCompilerCreator (baseCompile) {
+  return function createCompiler (baseOptions) {
+    function compile (
+      template,
+      options
+    ) {
+      const finalOptions = Object.create(baseOptions);
+      const errors = [];
+      const tips = [];
+
+      let warn = (msg, range, tip) => {
+        (tip ? tips : errors).push(msg);
+      };
+
+      if (options) {
+        if (options.outputSourceRange) {
+          // $flow-disable-line
+          const leadingSpaceLength = template.match(/^\s*/)[0].length;
+
+          warn = (msg, range, tip) => {
+            const data = { msg };
+            if (range) {
+              if (range.start != null) {
+                data.start = range.start + leadingSpaceLength;
+              }
+              if (range.end != null) {
+                data.end = range.end + leadingSpaceLength;
+              }
+            }
+            (tip ? tips : errors).push(data);
+          };
+        }
+        // merge custom modules
+        if (options.modules) {
+          finalOptions.modules =
+            (baseOptions.modules || []).concat(options.modules);
+        }
+        // merge custom directives
+        if (options.directives) {
+          finalOptions.directives = extend(
+            Object.create(baseOptions.directives || null),
+            options.directives
+          );
+        }
+        // copy other options
+        for (const key in options) {
+          if (key !== 'modules' && key !== 'directives') {
+            finalOptions[key] = options[key];
+          }
+        }
+      }
+
+      finalOptions.warn = warn;
+
+      const compiled = baseCompile(template.trim(), finalOptions);
+      {
+        detectErrors(compiled.ast, warn);
+      }
+      compiled.errors = errors;
+      compiled.tips = tips;
+      return compiled
+    }
+
+    return {
+      compile,
+      compileToFunctions: createCompileToFunctionFn(compile)
+    }
+  }
+}
+
+/*  */
+
+// `createCompilerCreator` allows creating compilers that use alternative
+// parser/optimizer/codegen, e.g the SSR optimizing compiler.
+// Here we just export a default compiler using the default parts.
+const createCompiler = createCompilerCreator(function baseCompile (
+  template,
+  options
+) {
+  const ast = parse(template.trim(), options);
+  if (options.optimize !== false) {
+    optimize(ast, options);
+  }
+  const code = generate(ast, options);
+  return {
+    ast,
+    render: code.render,
+    staticRenderFns: code.staticRenderFns
+  }
+});
+
+/*  */
+
+const { compile, compileToFunctions } = createCompiler(baseOptions);
+
+/*  */
+
+// check whether current browser encodes a char inside attribute values
+let div;
+function getShouldDecode (href) {
+  div = div || document.createElement('div');
+  div.innerHTML = href ? `<a href="\n"/>` : `<div a="\n"/>`;
+  return div.innerHTML.indexOf('&#10;') > 0
+}
+
+// #3663: IE encodes newlines inside attribute values while other browsers don't
+const shouldDecodeNewlines = inBrowser ? getShouldDecode(false) : false;
+// #6828: chrome encodes content in a[href]
+const shouldDecodeNewlinesForHref = inBrowser ? getShouldDecode(true) : false;
+
+/*  */
+
+const idToTemplate = cached(id => {
+  const el = query(id);
+  return el && el.innerHTML
+});
+
+const mount = Vue.prototype.$mount;
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && query(el);
+
+  /* istanbul ignore if */
+  if (el === document.body || el === document.documentElement) {
+    warn(
+      `Do not mount Vue to <html> or <body> - mount to normal elements instead.`
+    );
+    return this
+  }
+
+  const options = this.$options;
+  // resolve template/el and convert to render function
+  if (!options.render) {
+    let template = options.template;
+    if (template) {
+      if (typeof template === 'string') {
+        if (template.charAt(0) === '#') {
+          template = idToTemplate(template);
+          /* istanbul ignore if */
+          if (!template) {
+            warn(
+              `Template element not found or is empty: ${options.template}`,
+              this
+            );
+          }
+        }
+      } else if (template.nodeType) {
+        template = template.innerHTML;
+      } else {
+        {
+          warn('invalid template option:' + template, this);
+        }
+        return this
+      }
+    } else if (el) {
+      template = getOuterHTML(el);
+    }
+    if (template) {
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        mark('compile');
+      }
+
+      const { render, staticRenderFns } = compileToFunctions(template, {
+        outputSourceRange: "development" !== 'production',
+        shouldDecodeNewlines,
+        shouldDecodeNewlinesForHref,
+        delimiters: options.delimiters,
+        comments: options.comments
+      }, this);
+      options.render = render;
+      options.staticRenderFns = staticRenderFns;
+
+      /* istanbul ignore if */
+      if (config.performance && mark) {
+        mark('compile end');
+        measure(`vue ${this._name} compile`, 'compile', 'compile end');
+      }
+    }
+  }
+  return mount.call(this, el, hydrating)
+};
+
+/**
+ * Get outerHTML of elements, taking care
+ * of SVG elements in IE as well.
+ */
+function getOuterHTML (el) {
+  if (el.outerHTML) {
+    return el.outerHTML
+  } else {
+    const container = document.createElement('div');
+    container.appendChild(el.cloneNode(true));
+    return container.innerHTML
+  }
+}
+
+Vue.compile = compileToFunctions;
+
+export default Vue;
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
new file mode 100644
index 00000000000..b115faed12a
--- /dev/null
+++ b/dist/vue.esm.browser.min.js
@@ -0,0 +1,6 @@
+/*!
+ * Vue.js v2.6.0-beta.2
+ * (c) 2014-2019 Evan You
+ * Released under the MIT License.
+ */
+const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const 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${Ei(t,e,n)}`+"})"}(t,e,n);return`{key:${t},fn:${`function(${String(e.slotScope)}){`+`return ${"template"===e.tag?e.if?`(${e.if})?${ji(e,n)||"undefined"}:undefined`:ji(e,n)||"undefined":ki(e,n)}}`}}`}function ji(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||ki)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Li(r)||r.ifConditions&&r.ifConditions.some(t=>Li(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Ii;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Li(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Ii(t,e){return 1===t.type?ki(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Di(JSON.stringify(n.text))})`;var n,o}function Mi(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Di(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Di(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Pi(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Ri(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Pi(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Pi(t,c)),e[s]=a}}const Fi=(Hi=function(t,e){const n=Xs(t.trim(),e);!1!==e.optimize&&di(n,e);const o=Ai(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=Hi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Ri(e)}});var Hi;const{compile:Bi,compileToFunctions:Ui}=Fi(ci);let zi;function Vi(t){return(zi=zi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',zi.innerHTML.indexOf("&#10;")>0}const Ki=!!U&&Vi(!1),Ji=!!U&&Vi(!0),qi=v(t=>{const e=Bn(t);return e&&e.innerHTML}),Wi=pn.prototype.$mount;pn.prototype.$mount=function(t,e){if((t=t&&Bn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=qi(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Ui(e,{outputSourceRange:!1,shouldDecodeNewlines:Ki,shouldDecodeNewlinesForHref:Ji,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return Wi.call(this,t,e)},pn.compile=Ui;export default pn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 84f57e6326e..21fca19ac53 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.1
+ * Vue.js v2.6.0-beta.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -367,7 +367,7 @@ var LIFECYCLE_HOOKS = [
   'activated',
   'deactivated',
   'errorCaptured',
-  'ssrPrefetch'
+  'serverPrefetch'
 ];
 
 /*  */
@@ -1887,6 +1887,8 @@ function logError (err, vm, info) {
 
 /*  */
 
+var isUsingMicroTask = false;
+
 var callbacks = [];
 var pending = false;
 
@@ -1930,6 +1932,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
     // "force" the microtask queue to be flushed by adding an empty timer.
     if (isIOS) { setTimeout(noop); }
   };
+  isUsingMicroTask = true;
 } else if (!isIE && typeof MutationObserver !== 'undefined' && (
   isNative(MutationObserver) ||
   // PhantomJS and iOS 7.x
@@ -1948,6 +1951,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
     counter = (counter + 1) % 2;
     textNode.data = String(counter);
   };
+  isUsingMicroTask = true;
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
   // Techinically it leverages the (macro) task queue,
@@ -2746,13 +2750,14 @@ function isWhitespace (node) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  hasDynamicKeys,
   res
 ) {
-  res = res || {};
+  res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, res);
+      resolveScopedSlots(slot, hasDynamicKeys, res);
     } else {
       res[slot.key] = slot.fn;
     }
@@ -2968,12 +2973,22 @@ function updateChildComponent (
   }
 
   // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
     renderChildren ||               // has new static slots
     vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
+    hasDynamicScopedSlot
   );
 
   vm.$options._parentVnode = parentVnode;
@@ -3012,7 +3027,7 @@ function updateChildComponent (
   updateComponentListeners(vm, listeners, oldListeners);
 
   // resolve slots + force update if has children
-  if (hasChildren) {
+  if (needsForceUpdate) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
     vm.$forceUpdate();
   }
@@ -3103,10 +3118,32 @@ function resetSchedulerState () {
   waiting = flushing = false;
 }
 
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
+
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res ( relative to poge load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
+
 /**
  * Flush both queues and run the watchers.
  */
 function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
   flushing = true;
   var watcher, id;
 
@@ -3863,7 +3900,7 @@ function normalizeScopedSlots (
   } else {
     res = {};
     for (var key in slots) {
-      if (slots[key]) {
+      if (slots[key] && key[0] !== '$') {
         res[key] = normalizeScopedSlot(slots[key]);
       }
     }
@@ -3875,6 +3912,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
+  res.$stable = slots && slots.$stable;
   return res
 }
 
@@ -4153,6 +4191,31 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
+}
+
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -4169,6 +4232,8 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
 }
 
 /*  */
@@ -5274,7 +5339,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.1';
+Vue.version = '2.6.0-beta.2';
 
 /*  */
 
@@ -6420,6 +6485,7 @@ function _update (oldVnode, vnode) {
     } else {
       // existing directive, update
       dir.oldValue = oldDir.value;
+      dir.oldArg = oldDir.arg;
       callHook$1(dir, 'update', vnode, oldVnode);
       if (dir.def && dir.def.componentUpdated) {
         dirsWithPostpatch.push(dir);
@@ -6760,13 +6826,16 @@ function pluckModuleFunction (
     : []
 }
 
-function addProp (el, name, value, range) {
-  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
+function addProp (el, name, value, range, dynamic) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
   el.plain = false;
 }
 
-function addAttr (el, name, value, range) {
-  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
+function addAttr (el, name, value, range, dynamic) {
+  var attrs = dynamic
+    ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+    : (el.attrs || (el.attrs = []));
+  attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
   el.plain = false;
 }
 
@@ -6782,13 +6851,27 @@ function addDirective (
   rawName,
   value,
   arg,
+  isDynamicArg,
   modifiers,
   range
 ) {
-  (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
+  (el.directives || (el.directives = [])).push(rangeSetItem({
+    name: name,
+    rawName: rawName,
+    value: value,
+    arg: arg,
+    isDynamicArg: isDynamicArg,
+    modifiers: modifiers
+  }, range));
   el.plain = false;
 }
 
+function prependModifierMarker (symbol, name, dynamic) {
+  return dynamic
+    ? ("_p(" + name + ",\"" + symbol + "\")")
+    : symbol + name // mark the event as captured
+}
+
 function addHandler (
   el,
   name,
@@ -6796,7 +6879,8 @@ function addHandler (
   modifiers,
   important,
   warn,
-  range
+  range,
+  dynamic
 ) {
   modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
@@ -6815,11 +6899,17 @@ function addHandler (
   // normalize click.right and click.middle since they don't actually fire
   // this is technically browser-specific, but at least for now browsers are
   // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
+  if (modifiers.right) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
+    } else if (name === 'click') {
       name = 'contextmenu';
       delete modifiers.right;
-    } else if (modifiers.middle) {
+    }
+  } else if (modifiers.middle) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
+    } else if (name === 'click') {
       name = 'mouseup';
     }
   }
@@ -6827,16 +6917,16 @@ function addHandler (
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
+    name = prependModifierMarker('!', name, dynamic);
   }
   if (modifiers.once) {
     delete modifiers.once;
-    name = '~' + name; // mark the event as once
+    name = prependModifierMarker('~', name, dynamic);
   }
   /* istanbul ignore if */
   if (modifiers.passive) {
     delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
+    name = prependModifierMarker('&', name, dynamic);
   }
 
   var events;
@@ -6847,7 +6937,7 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = rangeSetItem({ value: value.trim() }, range);
+  var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -7310,17 +7400,17 @@ function add$1 (
   capture,
   passive
 ) {
-  if (isChrome) {
-    // async edge case #6566: inner click event triggers patch, event handler
-    // attached to outer element during patch, and triggered again. This only
-    // happens in Chrome as it fires microtask ticks between event propagation.
-    // the solution is simple: we save the timestamp when a handler is attached,
-    // and the handler would only fire if the event passed to it was fired
-    // AFTER it was attached.
-    var now = performance.now();
+  // async edge case #6566: inner click event triggers patch, event handler
+  // attached to outer element during patch, and triggered again. This
+  // happens because browsers fire microtask ticks between event propagation.
+  // the solution is simple: we save the timestamp when a handler is attached,
+  // and the handler would only fire if the event passed to it was fired
+  // AFTER it was attached.
+  if (isUsingMicroTask) {
+    var attachedTimestamp = currentFlushTimestamp;
     var original = handler;
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= now) {
+      if (e.timeStamp >= attachedTimestamp) {
         return original.apply(this, arguments)
       }
     };
@@ -7401,14 +7491,11 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // #4521: if a click event triggers update before the change event is
-    // dispatched on a checkbox/radio input, the input's checked state will
-    // be reset and fail to trigger another update.
-    // The root cause here is that browsers may fire microtasks in between click/change.
-    // In Chrome / Firefox, click event fires before change, thus having this problem.
-    // In Safari / Edge, the order is opposite.
-    // Note: in Edge, if you click too fast, only the click event would fire twice.
-    if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+    // skip the update if old and new VDOM state is the same.
+    // the only exception is `value` where the DOM value may be temporarily
+    // out of sync with VDOM state due to focus, composition and modifiers.
+    // This also covers #4521 by skipping the unnecesarry `checked` update.
+    if (key !== 'value' && cur === oldProps[key]) {
       continue
     }
 
@@ -9325,13 +9412,14 @@ var dirRE = /^v-|^@|^:|^\./;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
+var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
 var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
-var scopedSlotShorthandRE = /^:?\(.*\)$/;
+var slotRE = /^v-slot(:|$)|^#/;
 
 var lineBreakRE = /[\r\n]/;
 var whitespaceRE$1 = /\s+/g;
@@ -9860,27 +9948,7 @@ function processSlotContent (el) {
         true
       );
     }
-    el.slotScope = (
-      slotScope ||
-      getAndRemoveAttr(el, 'slot-scope')
-    );
-    if (process.env.NEW_SLOT_SYNTAX) {
-      // new in 2.6: slot-props and its shorthand works the same as slot-scope
-      // when used on <template> containers
-      el.slotScope = el.slotScope || getAndRemoveAttr(el, 'slot-props');
-      // 2.6 shorthand syntax
-      var shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
-      if (shorthand) {
-        if (process.env.NODE_ENV !== 'production' && el.slotScope) {
-          warn$2(
-            "Unexpected mixed usage of different slot syntaxes.",
-            el
-          );
-        }
-        el.slotTarget = getScopedSlotShorthandName(shorthand);
-        el.slotScope = shorthand.value;
-      }
-    }
+    el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
   } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
@@ -9893,58 +9961,101 @@ function processSlotContent (el) {
       );
     }
     el.slotScope = slotScope;
-  } else if (process.env.NEW_SLOT_SYNTAX) {
-    // 2.6: slot-props on component, denotes default slot
-    slotScope = getAndRemoveAttr(el, 'slot-props');
-    var shorthand$1 = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
-    if (slotScope || shorthand$1) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (!maybeComponent(el)) {
-          warn$2(
-            "slot-props cannot be used on non-component elements.",
-            el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
-          );
-        }
-        if (slotScope && shorthand$1) {
-          warn$2(
-            "Unexpected mixed usage of different slot syntaxes.",
-            el
-          );
-        }
-      }
-      // add the component's children to its default slot
-      var slots = el.scopedSlots || (el.scopedSlots = {});
-      var target = shorthand$1 ? getScopedSlotShorthandName(shorthand$1) : "\"default\"";
-      var slotContainer = slots[target] = createASTElement('template', [], el);
-      slotContainer.children = el.children;
-      slotContainer.slotScope = shorthand$1 ? shorthand$1.value : slotScope;
-      // remove children as they are returned from scopedSlots now
-      el.children = [];
-      // mark el non-plain so data gets generated
-      el.plain = false;
-    }
   }
 
   // slot="xxx"
   var slotTarget = getBindingAttr(el, 'slot');
   if (slotTarget) {
     el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
     // preserve slot as an attribute for native shadow DOM compat
     // only for non-scoped slots.
     if (el.tag !== 'template' && !el.slotScope) {
       addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
     }
   }
-}
 
-function getScopedSlotShorthandName (ref) {
-  var name = ref.name;
+  // 2.6 v-slot syntax
+  if (process.env.NEW_SLOT_SYNTAX) {
+    if (el.tag === 'template') {
+      // v-slot on <template>
+      var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding) {
+        if (process.env.NODE_ENV !== 'production') {
+          if (el.slotTarget || el.slotScope) {
+            warn$2(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+        }
+        var ref = getSlotName(slotBinding);
+        var name = ref.name;
+        var dynamic = ref.dynamic;
+        el.slotTarget = name;
+        el.slotTargetDynamic = dynamic;
+        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+      }
+    } else {
+      // v-slot on component, denotes default slot
+      var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding$1) {
+        if (process.env.NODE_ENV !== 'production') {
+          if (!maybeComponent(el)) {
+            warn$2(
+              "v-slot can only be used on components or <template>.",
+              slotBinding$1
+            );
+          }
+          if (el.slotScope || el.slotTarget) {
+            warn$2(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+          if (el.scopedSlots) {
+            warn$2(
+              "To avoid scope ambiguity, the default slot should also use " +
+              "<template> syntax when there are other named slots.",
+              slotBinding$1
+            );
+          }
+        }
+        // add the component's children to its default slot
+        var slots = el.scopedSlots || (el.scopedSlots = {});
+        var ref$1 = getSlotName(slotBinding$1);
+        var name$1 = ref$1.name;
+        var dynamic$1 = ref$1.dynamic;
+        var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTargetDynamic = dynamic$1;
+        slotContainer.children = el.children;
+        slotContainer.slotScope = slotBinding$1.value || "_";
+        // remove children as they are returned from scopedSlots now
+        el.children = [];
+        // mark el non-plain so data gets generated
+        el.plain = false;
+      }
+    }
+  }
+}
 
-  return name.charAt(0) === ':'
-    // dynamic :(name)
-    ? name.slice(2, -1) || "\"default\""
-    // static (name)
-    : ("\"" + (name.slice(1, -1) || "default") + "\"")
+function getSlotName (binding) {
+  var name = binding.name.replace(slotRE, '');
+  if (!name) {
+    if (binding.name[0] !== '#') {
+      name = 'default';
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn$2(
+        "v-slot shorthand syntax requires a slot name.",
+        binding
+      );
+    }
+  }
+  return dynamicArgRE.test(name)
+    // dynamic [name]
+    ? { name: name.slice(1, -1), dynamic: true }
+    // static name
+    : { name: ("\"" + name + "\""), dynamic: false }
 }
 
 // handle <slot/> outlets
@@ -9974,7 +10085,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp, syncGen;
+  var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name;
     value = list[i].value;
@@ -9993,7 +10104,10 @@ function processAttrs (el) {
       if (bindRE.test(name)) { // v-bind
         name = name.replace(bindRE, '');
         value = parseFilters(value);
-        isProp = false;
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
         if (
           process.env.NODE_ENV !== 'production' &&
           value.trim().length === 0
@@ -10003,57 +10117,79 @@ function processAttrs (el) {
           );
         }
         if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
+          if (modifiers.prop && !isDynamic) {
             name = camelize(name);
             if (name === 'innerHtml') { name = 'innerHTML'; }
           }
-          if (modifiers.camel) {
+          if (modifiers.camel && !isDynamic) {
             name = camelize(name);
           }
           if (modifiers.sync) {
             syncGen = genAssignmentCode(value, "$event");
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              syncGen,
-              null,
-              false,
-              warn$2,
-              list[i]
-            );
-            if (hyphenate(name) !== camelize(name)) {
+            if (!isDynamic) {
               addHandler(
                 el,
-                ("update:" + (hyphenate(name))),
+                ("update:" + (camelize(name))),
                 syncGen,
                 null,
                 false,
                 warn$2,
                 list[i]
               );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  ("update:" + (hyphenate(name))),
+                  syncGen,
+                  null,
+                  false,
+                  warn$2,
+                  list[i]
+                );
+              }
+            } else {
+              // handler w/ dynamic event name
+              addHandler(
+                el,
+                ("\"update:\"+(" + name + ")"),
+                syncGen,
+                null,
+                false,
+                warn$2,
+                list[i],
+                true // dynamic
+              );
             }
           }
         }
-        if (isProp || (
+        if ((modifiers && modifiers.prop) || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value, list[i]);
+          addProp(el, name, value, list[i], isDynamic);
         } else {
-          addAttr(el, name, value, list[i]);
+          addAttr(el, name, value, list[i], isDynamic);
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$2, list[i]);
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
+        addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
         var argMatch = name.match(argRE);
         var arg = argMatch && argMatch[1];
+        isDynamic = false;
         if (arg) {
           name = name.slice(0, -(arg.length + 1));
+          if (dynamicArgRE.test(arg)) {
+            arg = arg.slice(1, -1);
+            isDynamic = true;
+          }
         }
-        addDirective(el, name, rawName, value, arg, modifiers, list[i]);
+        addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
         if (process.env.NODE_ENV !== 'production' && name === 'model') {
           checkForAliasModel(el, value);
         }
@@ -10466,23 +10602,32 @@ function genHandlers (
   events,
   isNative
 ) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
+  var prefix = isNative ? 'nativeOn:' : 'on:';
+  var staticHandlers = "";
+  var dynamicHandlers = "";
   for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+    var handlerCode = genHandler(events[name]);
+    if (events[name] && events[name].dynamic) {
+      dynamicHandlers += name + "," + handlerCode + ",";
+    } else {
+      staticHandlers += "\"" + name + "\":" + handlerCode + ",";
+    }
+  }
+  staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
+  if (dynamicHandlers) {
+    return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
+  } else {
+    return prefix + staticHandlers
   }
-  return res.slice(0, -1) + '}'
 }
 
-function genHandler (
-  name,
-  handler
-) {
+function genHandler (handler) {
   if (!handler) {
     return 'function(){}'
   }
 
   if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+    return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
   }
 
   var isMethodPath = simplePathRE.test(handler.value);
@@ -10536,7 +10681,7 @@ function genHandler (
 }
 
 function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
 }
 
 function genFilterCode (key) {
@@ -10799,11 +10944,11 @@ function genData$2 (el, state) {
   }
   // attributes
   if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
+    data += "attrs:" + (genProps(el.attrs)) + ",";
   }
   // DOM props
   if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
+    data += "domProps:" + (genProps(el.props)) + ",";
   }
   // event handlers
   if (el.events) {
@@ -10833,6 +10978,12 @@ function genData$2 (el, state) {
     }
   }
   data = data.replace(/,$/, '') + '}';
+  // v-bind dynamic argument wrap
+  // v-bind with dynamic arguments must be applied using the same v-bind object
+  // merge helper so that class/style/mustUseProp attrs are handled correctly.
+  if (el.dynamicAttrs) {
+    data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
+  }
   // v-bind data wrap
   if (el.wrapData) {
     data = el.wrapData(data);
@@ -10861,7 +11012,7 @@ function genDirectives (el, state) {
     }
     if (needRuntime) {
       hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
     }
   }
   if (hasRuntime) {
@@ -10889,9 +11040,10 @@ function genScopedSlots (
   slots,
   state
 ) {
+  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
       return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
+    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
@@ -11036,15 +11188,23 @@ function genComponent (
 }
 
 function genProps (props) {
-  var res = '';
+  var staticProps = "";
+  var dynamicProps = "";
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    var value = transformSpecialNewlines(prop.value);
+    if (prop.dynamic) {
+      dynamicProps += (prop.name) + "," + value + ",";
+    } else {
+      staticProps += "\"" + (prop.name) + "\":" + value + ",";
     }
   }
-  return res.slice(0, -1)
+  staticProps = "{" + (staticProps.slice(0, -1)) + "}";
+  if (dynamicProps) {
+    return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
+  } else {
+    return staticProps
+  }
 }
 
 // #3895, #4268
diff --git a/dist/vue.js b/dist/vue.js
index 538fa92f030..86e37eb0170 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.1
+ * Vue.js v2.6.0-beta.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -373,7 +373,7 @@
     'activated',
     'deactivated',
     'errorCaptured',
-    'ssrPrefetch'
+    'serverPrefetch'
   ];
 
   /*  */
@@ -1887,6 +1887,8 @@
 
   /*  */
 
+  var isUsingMicroTask = false;
+
   var callbacks = [];
   var pending = false;
 
@@ -1930,6 +1932,7 @@
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
+    isUsingMicroTask = true;
   } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
@@ -1948,6 +1951,7 @@
       counter = (counter + 1) % 2;
       textNode.data = String(counter);
     };
+    isUsingMicroTask = true;
   } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     // Fallback to setImmediate.
     // Techinically it leverages the (macro) task queue,
@@ -2744,13 +2748,14 @@
 
   function resolveScopedSlots (
     fns, // see flow/vnode
+    hasDynamicKeys,
     res
   ) {
-    res = res || {};
+    res = res || { $stable: !hasDynamicKeys };
     for (var i = 0; i < fns.length; i++) {
       var slot = fns[i];
       if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, res);
+        resolveScopedSlots(slot, hasDynamicKeys, res);
       } else {
         res[slot.key] = slot.fn;
       }
@@ -2966,12 +2971,22 @@
     }
 
     // determine whether component has slot children
-    // we need to do this before overwriting $options._renderChildren
-    var hasChildren = !!(
+    // we need to do this before overwriting $options._renderChildren.
+
+    // check if there are dynamic scopedSlots (hand-written or compiled but with
+    // dynamic slot names). Static scoped slots compiled from template has the
+    // "$stable" marker.
+    var hasDynamicScopedSlot = !!(
+      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    );
+    // Any static slot children from the parent may have changed during parent's
+    // update. Dynamic scoped slots may also have changed. In such cases, a forced
+    // update is necessary to ensure correctness.
+    var needsForceUpdate = !!(
       renderChildren ||               // has new static slots
       vm.$options._renderChildren ||  // has old static slots
-      parentVnode.data.scopedSlots || // has new scoped slots
-      vm.$scopedSlots !== emptyObject // has old scoped slots
+      hasDynamicScopedSlot
     );
 
     vm.$options._parentVnode = parentVnode;
@@ -3010,7 +3025,7 @@
     updateComponentListeners(vm, listeners, oldListeners);
 
     // resolve slots + force update if has children
-    if (hasChildren) {
+    if (needsForceUpdate) {
       vm.$slots = resolveSlots(renderChildren, parentVnode.context);
       vm.$forceUpdate();
     }
@@ -3101,10 +3116,32 @@
     waiting = flushing = false;
   }
 
+  // Async edge case #6566 requires saving the timestamp when event listeners are
+  // attached. However, calling performance.now() has a perf overhead especially
+  // if the page has thousands of event listeners. Instead, we take a timestamp
+  // every time the scheduler flushes and use that for all event listeners
+  // attached during that flush.
+  var currentFlushTimestamp = 0;
+
+  // Async edge case fix requires storing an event listener's attach timestamp.
+  var getNow = Date.now;
+
+  // Determine what event timestamp the browser is using. Annoyingly, the
+  // timestamp can either be hi-res ( relative to poge load) or low-res
+  // (relative to UNIX epoch), so in order to compare time we have to use the
+  // same timestamp type when saving the flush timestamp.
+  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+    // if the low-res timestamp which is bigger than the event timestamp
+    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listeners as well.
+    getNow = function () { return performance.now(); };
+  }
+
   /**
    * Flush both queues and run the watchers.
    */
   function flushSchedulerQueue () {
+    currentFlushTimestamp = getNow();
     flushing = true;
     var watcher, id;
 
@@ -3854,7 +3891,7 @@
     } else {
       res = {};
       for (var key in slots) {
-        if (slots[key]) {
+        if (slots[key] && key[0] !== '$') {
           res[key] = normalizeScopedSlot(slots[key]);
         }
       }
@@ -3866,6 +3903,7 @@
       }
     }
     res._normalized = true;
+    res.$stable = slots && slots.$stable;
     return res
   }
 
@@ -4144,6 +4182,31 @@
 
   /*  */
 
+  function bindDynamicKeys (baseObj, values) {
+    for (var i = 0; i < values.length; i += 2) {
+      var key = values[i];
+      if (typeof key === 'string' && key) {
+        baseObj[values[i]] = values[i + 1];
+      } else if (key !== '' && key !== null) {
+        // null is a speical value for explicitly removing a binding
+        warn(
+          ("Invalid value for dynamic directive argument (expected string or null): " + key),
+          this
+        );
+      }
+    }
+    return baseObj
+  }
+
+  // helper to dynamically append modifier runtime markers to event names.
+  // ensure only append when value is already string, otherwise it will be cast
+  // to string and cause the type check to miss.
+  function prependModifier (value, symbol) {
+    return typeof value === 'string' ? symbol + value : value
+  }
+
+  /*  */
+
   function installRenderHelpers (target) {
     target._o = markOnce;
     target._n = toNumber;
@@ -4160,6 +4223,8 @@
     target._e = createEmptyVNode;
     target._u = resolveScopedSlots;
     target._g = bindObjectListeners;
+    target._d = bindDynamicKeys;
+    target._p = prependModifier;
   }
 
   /*  */
@@ -5258,7 +5323,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0-beta.1';
+  Vue.version = '2.6.0-beta.2';
 
   /*  */
 
@@ -6402,6 +6467,7 @@
       } else {
         // existing directive, update
         dir.oldValue = oldDir.value;
+        dir.oldArg = oldDir.arg;
         callHook$1(dir, 'update', vnode, oldVnode);
         if (dir.def && dir.def.componentUpdated) {
           dirsWithPostpatch.push(dir);
@@ -6742,13 +6808,16 @@
       : []
   }
 
-  function addProp (el, name, value, range) {
-    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
+  function addProp (el, name, value, range, dynamic) {
+    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
     el.plain = false;
   }
 
-  function addAttr (el, name, value, range) {
-    (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
+  function addAttr (el, name, value, range, dynamic) {
+    var attrs = dynamic
+      ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+      : (el.attrs || (el.attrs = []));
+    attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
     el.plain = false;
   }
 
@@ -6764,13 +6833,27 @@
     rawName,
     value,
     arg,
+    isDynamicArg,
     modifiers,
     range
   ) {
-    (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
+    (el.directives || (el.directives = [])).push(rangeSetItem({
+      name: name,
+      rawName: rawName,
+      value: value,
+      arg: arg,
+      isDynamicArg: isDynamicArg,
+      modifiers: modifiers
+    }, range));
     el.plain = false;
   }
 
+  function prependModifierMarker (symbol, name, dynamic) {
+    return dynamic
+      ? ("_p(" + name + ",\"" + symbol + "\")")
+      : symbol + name // mark the event as captured
+  }
+
   function addHandler (
     el,
     name,
@@ -6778,7 +6861,8 @@
     modifiers,
     important,
     warn,
-    range
+    range,
+    dynamic
   ) {
     modifiers = modifiers || emptyObject;
     // warn prevent and passive modifier
@@ -6797,11 +6881,17 @@
     // normalize click.right and click.middle since they don't actually fire
     // this is technically browser-specific, but at least for now browsers are
     // the only target envs that have right/middle clicks.
-    if (name === 'click') {
-      if (modifiers.right) {
+    if (modifiers.right) {
+      if (dynamic) {
+        name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
+      } else if (name === 'click') {
         name = 'contextmenu';
         delete modifiers.right;
-      } else if (modifiers.middle) {
+      }
+    } else if (modifiers.middle) {
+      if (dynamic) {
+        name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
+      } else if (name === 'click') {
         name = 'mouseup';
       }
     }
@@ -6809,16 +6899,16 @@
     // check capture modifier
     if (modifiers.capture) {
       delete modifiers.capture;
-      name = '!' + name; // mark the event as captured
+      name = prependModifierMarker('!', name, dynamic);
     }
     if (modifiers.once) {
       delete modifiers.once;
-      name = '~' + name; // mark the event as once
+      name = prependModifierMarker('~', name, dynamic);
     }
     /* istanbul ignore if */
     if (modifiers.passive) {
       delete modifiers.passive;
-      name = '&' + name; // mark the event as passive
+      name = prependModifierMarker('&', name, dynamic);
     }
 
     var events;
@@ -6829,7 +6919,7 @@
       events = el.events || (el.events = {});
     }
 
-    var newHandler = rangeSetItem({ value: value.trim() }, range);
+    var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
     if (modifiers !== emptyObject) {
       newHandler.modifiers = modifiers;
     }
@@ -6899,6 +6989,20 @@
     return val
   }
 
+  function getAndRemoveAttrByRegex (
+    el,
+    name
+  ) {
+    var list = el.attrsList;
+    for (var i = 0, l = list.length; i < l; i++) {
+      var attr = list[i];
+      if (name.test(attr.name)) {
+        list.splice(i, 1);
+        return attr
+      }
+    }
+  }
+
   function rangeSetItem (
     item,
     range
@@ -7278,17 +7382,17 @@
     capture,
     passive
   ) {
-    if (isChrome) {
-      // async edge case #6566: inner click event triggers patch, event handler
-      // attached to outer element during patch, and triggered again. This only
-      // happens in Chrome as it fires microtask ticks between event propagation.
-      // the solution is simple: we save the timestamp when a handler is attached,
-      // and the handler would only fire if the event passed to it was fired
-      // AFTER it was attached.
-      var now = performance.now();
+    // async edge case #6566: inner click event triggers patch, event handler
+    // attached to outer element during patch, and triggered again. This
+    // happens because browsers fire microtask ticks between event propagation.
+    // the solution is simple: we save the timestamp when a handler is attached,
+    // and the handler would only fire if the event passed to it was fired
+    // AFTER it was attached.
+    if (isUsingMicroTask) {
+      var attachedTimestamp = currentFlushTimestamp;
       var original = handler;
       handler = original._wrapper = function (e) {
-        if (e.timeStamp >= now) {
+        if (e.timeStamp >= attachedTimestamp) {
           return original.apply(this, arguments)
         }
       };
@@ -7369,14 +7473,11 @@
         }
       }
 
-      // #4521: if a click event triggers update before the change event is
-      // dispatched on a checkbox/radio input, the input's checked state will
-      // be reset and fail to trigger another update.
-      // The root cause here is that browsers may fire microtasks in between click/change.
-      // In Chrome / Firefox, click event fires before change, thus having this problem.
-      // In Safari / Edge, the order is opposite.
-      // Note: in Edge, if you click too fast, only the click event would fire twice.
-      if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+      // skip the update if old and new VDOM state is the same.
+      // the only exception is `value` where the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This also covers #4521 by skipping the unnecesarry `checked` update.
+      if (key !== 'value' && cur === oldProps[key]) {
         continue
       }
 
@@ -9286,12 +9387,15 @@
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
+  var dynamicArgRE = /^\[.*\]$/;
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
   var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
+  var slotRE = /^v-slot(:|$)|^#/;
+
   var lineBreakRE = /[\r\n]/;
   var whitespaceRE$1 = /\s+/g;
 
@@ -9306,6 +9410,7 @@
   var platformIsPreTag;
   var platformMustUseProp;
   var platformGetTagNamespace;
+  var maybeComponent;
 
   function createASTElement (
     tag,
@@ -9336,6 +9441,7 @@
     platformMustUseProp = options.mustUseProp || no;
     platformGetTagNamespace = options.getTagNamespace || no;
     var isReservedTag = options.isReservedTag || no;
+    maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
 
     transforms = pluckModuleFunction(options.modules, 'transformNode');
     preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -9817,10 +9923,7 @@
           true
         );
       }
-      el.slotScope = (
-        slotScope ||
-        getAndRemoveAttr(el, 'slot-scope')
-      );
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
       /* istanbul ignore if */
       if (el.attrsMap['v-for']) {
@@ -9839,12 +9942,95 @@
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
       if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
       }
     }
+
+    // 2.6 v-slot syntax
+    {
+      if (el.tag === 'template') {
+        // v-slot on <template>
+        var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+        if (slotBinding) {
+          {
+            if (el.slotTarget || el.slotScope) {
+              warn$2(
+                "Unexpected mixed usage of different slot syntaxes.",
+                el
+              );
+            }
+          }
+          var ref = getSlotName(slotBinding);
+          var name = ref.name;
+          var dynamic = ref.dynamic;
+          el.slotTarget = name;
+          el.slotTargetDynamic = dynamic;
+          el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+        }
+      } else {
+        // v-slot on component, denotes default slot
+        var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
+        if (slotBinding$1) {
+          {
+            if (!maybeComponent(el)) {
+              warn$2(
+                "v-slot can only be used on components or <template>.",
+                slotBinding$1
+              );
+            }
+            if (el.slotScope || el.slotTarget) {
+              warn$2(
+                "Unexpected mixed usage of different slot syntaxes.",
+                el
+              );
+            }
+            if (el.scopedSlots) {
+              warn$2(
+                "To avoid scope ambiguity, the default slot should also use " +
+                "<template> syntax when there are other named slots.",
+                slotBinding$1
+              );
+            }
+          }
+          // add the component's children to its default slot
+          var slots = el.scopedSlots || (el.scopedSlots = {});
+          var ref$1 = getSlotName(slotBinding$1);
+          var name$1 = ref$1.name;
+          var dynamic$1 = ref$1.dynamic;
+          var slotContainer = slots[name$1] = createASTElement('template', [], el);
+          slotContainer.slotTargetDynamic = dynamic$1;
+          slotContainer.children = el.children;
+          slotContainer.slotScope = slotBinding$1.value || "_";
+          // remove children as they are returned from scopedSlots now
+          el.children = [];
+          // mark el non-plain so data gets generated
+          el.plain = false;
+        }
+      }
+    }
+  }
+
+  function getSlotName (binding) {
+    var name = binding.name.replace(slotRE, '');
+    if (!name) {
+      if (binding.name[0] !== '#') {
+        name = 'default';
+      } else {
+        warn$2(
+          "v-slot shorthand syntax requires a slot name.",
+          binding
+        );
+      }
+    }
+    return dynamicArgRE.test(name)
+      // dynamic [name]
+      ? { name: name.slice(1, -1), dynamic: true }
+      // static name
+      : { name: ("\"" + name + "\""), dynamic: false }
   }
 
   // handle <slot/> outlets
@@ -9874,7 +10060,7 @@
 
   function processAttrs (el) {
     var list = el.attrsList;
-    var i, l, name, rawName, value, modifiers, isProp, syncGen;
+    var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
     for (i = 0, l = list.length; i < l; i++) {
       name = rawName = list[i].name;
       value = list[i].value;
@@ -9893,7 +10079,10 @@
         if (bindRE.test(name)) { // v-bind
           name = name.replace(bindRE, '');
           value = parseFilters(value);
-          isProp = false;
+          isDynamic = dynamicArgRE.test(name);
+          if (isDynamic) {
+            name = name.slice(1, -1);
+          }
           if (
             value.trim().length === 0
           ) {
@@ -9902,57 +10091,79 @@
             );
           }
           if (modifiers) {
-            if (modifiers.prop) {
-              isProp = true;
+            if (modifiers.prop && !isDynamic) {
               name = camelize(name);
               if (name === 'innerHtml') { name = 'innerHTML'; }
             }
-            if (modifiers.camel) {
+            if (modifiers.camel && !isDynamic) {
               name = camelize(name);
             }
             if (modifiers.sync) {
               syncGen = genAssignmentCode(value, "$event");
-              addHandler(
-                el,
-                ("update:" + (camelize(name))),
-                syncGen,
-                null,
-                false,
-                warn$2,
-                list[i]
-              );
-              if (hyphenate(name) !== camelize(name)) {
+              if (!isDynamic) {
                 addHandler(
                   el,
-                  ("update:" + (hyphenate(name))),
+                  ("update:" + (camelize(name))),
                   syncGen,
                   null,
                   false,
                   warn$2,
                   list[i]
                 );
+                if (hyphenate(name) !== camelize(name)) {
+                  addHandler(
+                    el,
+                    ("update:" + (hyphenate(name))),
+                    syncGen,
+                    null,
+                    false,
+                    warn$2,
+                    list[i]
+                  );
+                }
+              } else {
+                // handler w/ dynamic event name
+                addHandler(
+                  el,
+                  ("\"update:\"+(" + name + ")"),
+                  syncGen,
+                  null,
+                  false,
+                  warn$2,
+                  list[i],
+                  true // dynamic
+                );
               }
             }
           }
-          if (isProp || (
+          if ((modifiers && modifiers.prop) || (
             !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
           )) {
-            addProp(el, name, value, list[i]);
+            addProp(el, name, value, list[i], isDynamic);
           } else {
-            addAttr(el, name, value, list[i]);
+            addAttr(el, name, value, list[i], isDynamic);
           }
         } else if (onRE.test(name)) { // v-on
           name = name.replace(onRE, '');
-          addHandler(el, name, value, modifiers, false, warn$2, list[i]);
+          isDynamic = dynamicArgRE.test(name);
+          if (isDynamic) {
+            name = name.slice(1, -1);
+          }
+          addHandler(el, name, value, modifiers, false, warn$2, list[i], isDynamic);
         } else { // normal directives
           name = name.replace(dirRE, '');
           // parse arg
           var argMatch = name.match(argRE);
           var arg = argMatch && argMatch[1];
+          isDynamic = false;
           if (arg) {
             name = name.slice(0, -(arg.length + 1));
+            if (dynamicArgRE.test(arg)) {
+              arg = arg.slice(1, -1);
+              isDynamic = true;
+            }
           }
-          addDirective(el, name, rawName, value, arg, modifiers, list[i]);
+          addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
           if (name === 'model') {
             checkForAliasModel(el, value);
           }
@@ -10364,23 +10575,32 @@
     events,
     isNative
   ) {
-    var res = isNative ? 'nativeOn:{' : 'on:{';
+    var prefix = isNative ? 'nativeOn:' : 'on:';
+    var staticHandlers = "";
+    var dynamicHandlers = "";
     for (var name in events) {
-      res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+      var handlerCode = genHandler(events[name]);
+      if (events[name] && events[name].dynamic) {
+        dynamicHandlers += name + "," + handlerCode + ",";
+      } else {
+        staticHandlers += "\"" + name + "\":" + handlerCode + ",";
+      }
+    }
+    staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
+    if (dynamicHandlers) {
+      return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
+    } else {
+      return prefix + staticHandlers
     }
-    return res.slice(0, -1) + '}'
   }
 
-  function genHandler (
-    name,
-    handler
-  ) {
+  function genHandler (handler) {
     if (!handler) {
       return 'function(){}'
     }
 
     if (Array.isArray(handler)) {
-      return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+      return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
     }
 
     var isMethodPath = simplePathRE.test(handler.value);
@@ -10434,7 +10654,7 @@
   }
 
   function genKeyFilter (keys) {
-    return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+    return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
   }
 
   function genFilterCode (key) {
@@ -10696,11 +10916,11 @@
     }
     // attributes
     if (el.attrs) {
-      data += "attrs:{" + (genProps(el.attrs)) + "},";
+      data += "attrs:" + (genProps(el.attrs)) + ",";
     }
     // DOM props
     if (el.props) {
-      data += "domProps:{" + (genProps(el.props)) + "},";
+      data += "domProps:" + (genProps(el.props)) + ",";
     }
     // event handlers
     if (el.events) {
@@ -10730,6 +10950,12 @@
       }
     }
     data = data.replace(/,$/, '') + '}';
+    // v-bind dynamic argument wrap
+    // v-bind with dynamic arguments must be applied using the same v-bind object
+    // merge helper so that class/style/mustUseProp attrs are handled correctly.
+    if (el.dynamicAttrs) {
+      data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
+    }
     // v-bind data wrap
     if (el.wrapData) {
       data = el.wrapData(data);
@@ -10758,7 +10984,7 @@
       }
       if (needRuntime) {
         hasRuntime = true;
-        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
       }
     }
     if (hasRuntime) {
@@ -10784,9 +11010,10 @@
     slots,
     state
   ) {
+    var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
         return genScopedSlot(key, slots[key], state)
-      }).join(',')) + "])")
+      }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
@@ -10931,15 +11158,23 @@
   }
 
   function genProps (props) {
-    var res = '';
+    var staticProps = "";
+    var dynamicProps = "";
     for (var i = 0; i < props.length; i++) {
       var prop = props[i];
-      /* istanbul ignore if */
-      {
-        res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+      var value = transformSpecialNewlines(prop.value);
+      if (prop.dynamic) {
+        dynamicProps += (prop.name) + "," + value + ",";
+      } else {
+        staticProps += "\"" + (prop.name) + "\":" + value + ",";
       }
     }
-    return res.slice(0, -1)
+    staticProps = "{" + (staticProps.slice(0, -1)) + "}";
+    if (dynamicProps) {
+      return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
+    } else {
+      return staticProps
+    }
   }
 
   // #3895, #4268
diff --git a/dist/vue.min.js b/dist/vue.min.js
index d81653a2e29..ba5e1c5c3c2 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.1
+ * Vue.js v2.6.0-beta.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
new file mode 100644
index 00000000000..4b6218577f5
--- /dev/null
+++ b/dist/vue.runtime.common.dev.js
@@ -0,0 +1,8269 @@
+/*!
+ * Vue.js v2.6.0-beta.2
+ * (c) 2014-2019 Evan You
+ * Released under the MIT License.
+ */
+'use strict';
+
+/*  */
+
+var emptyObject = Object.freeze({});
+
+// These helpers produce better VM code in JS engines due to their
+// explicitness and function inlining.
+function isUndef (v) {
+  return v === undefined || v === null
+}
+
+function isDef (v) {
+  return v !== undefined && v !== null
+}
+
+function isTrue (v) {
+  return v === true
+}
+
+function isFalse (v) {
+  return v === false
+}
+
+/**
+ * Check if value is primitive.
+ */
+function isPrimitive (value) {
+  return (
+    typeof value === 'string' ||
+    typeof value === 'number' ||
+    // $flow-disable-line
+    typeof value === 'symbol' ||
+    typeof value === 'boolean'
+  )
+}
+
+/**
+ * Quick object check - this is primarily used to tell
+ * Objects from primitive values when we know the value
+ * is a JSON-compliant type.
+ */
+function isObject (obj) {
+  return obj !== null && typeof obj === 'object'
+}
+
+/**
+ * Get the raw type string of a value, e.g., [object Object].
+ */
+var _toString = Object.prototype.toString;
+
+function toRawType (value) {
+  return _toString.call(value).slice(8, -1)
+}
+
+/**
+ * Strict object type check. Only returns true
+ * for plain JavaScript objects.
+ */
+function isPlainObject (obj) {
+  return _toString.call(obj) === '[object Object]'
+}
+
+function isRegExp (v) {
+  return _toString.call(v) === '[object RegExp]'
+}
+
+/**
+ * Check if val is a valid array index.
+ */
+function isValidArrayIndex (val) {
+  var n = parseFloat(String(val));
+  return n >= 0 && Math.floor(n) === n && isFinite(val)
+}
+
+function isPromise (val) {
+  return (
+    isDef(val) &&
+    typeof val.then === 'function' &&
+    typeof val.catch === 'function'
+  )
+}
+
+/**
+ * Convert a value to a string that is actually rendered.
+ */
+function toString (val) {
+  return val == null
+    ? ''
+    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)
+      ? JSON.stringify(val, null, 2)
+      : String(val)
+}
+
+/**
+ * Convert an input value to a number for persistence.
+ * If the conversion fails, return original string.
+ */
+function toNumber (val) {
+  var n = parseFloat(val);
+  return isNaN(n) ? val : n
+}
+
+/**
+ * Make a map and return a function for checking if a key
+ * is in that map.
+ */
+function makeMap (
+  str,
+  expectsLowerCase
+) {
+  var map = Object.create(null);
+  var list = str.split(',');
+  for (var i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? function (val) { return map[val.toLowerCase()]; }
+    : function (val) { return map[val]; }
+}
+
+/**
+ * Check if a tag is a built-in tag.
+ */
+var isBuiltInTag = makeMap('slot,component', true);
+
+/**
+ * Check if an attribute is a reserved attribute.
+ */
+var isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');
+
+/**
+ * Remove an item from an array.
+ */
+function remove (arr, item) {
+  if (arr.length) {
+    var index = arr.indexOf(item);
+    if (index > -1) {
+      return arr.splice(index, 1)
+    }
+  }
+}
+
+/**
+ * Check whether an object has the property.
+ */
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+function hasOwn (obj, key) {
+  return hasOwnProperty.call(obj, key)
+}
+
+/**
+ * Create a cached version of a pure function.
+ */
+function cached (fn) {
+  var cache = Object.create(null);
+  return (function cachedFn (str) {
+    var hit = cache[str];
+    return hit || (cache[str] = fn(str))
+  })
+}
+
+/**
+ * Camelize a hyphen-delimited string.
+ */
+var camelizeRE = /-(\w)/g;
+var camelize = cached(function (str) {
+  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
+});
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = cached(function (str) {
+  return str.charAt(0).toUpperCase() + str.slice(1)
+});
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = cached(function (str) {
+  return str.replace(hyphenateRE, '-$1').toLowerCase()
+});
+
+/**
+ * Simple bind polyfill for environments that do not support it,
+ * e.g., PhantomJS 1.x. Technically, we don't need this anymore
+ * since native bind is now performant enough in most browsers.
+ * But removing it would mean breaking code that was able to run in
+ * PhantomJS 1.x, so this must be kept for backward compatibility.
+ */
+
+/* istanbul ignore next */
+function polyfillBind (fn, ctx) {
+  function boundFn (a) {
+    var l = arguments.length;
+    return l
+      ? l > 1
+        ? fn.apply(ctx, arguments)
+        : fn.call(ctx, a)
+      : fn.call(ctx)
+  }
+
+  boundFn._length = fn.length;
+  return boundFn
+}
+
+function nativeBind (fn, ctx) {
+  return fn.bind(ctx)
+}
+
+var bind = Function.prototype.bind
+  ? nativeBind
+  : polyfillBind;
+
+/**
+ * Convert an Array-like object to a real Array.
+ */
+function toArray (list, start) {
+  start = start || 0;
+  var i = list.length - start;
+  var ret = new Array(i);
+  while (i--) {
+    ret[i] = list[i + start];
+  }
+  return ret
+}
+
+/**
+ * Mix properties into target object.
+ */
+function extend (to, _from) {
+  for (var key in _from) {
+    to[key] = _from[key];
+  }
+  return to
+}
+
+/**
+ * Merge an Array of Objects into a single Object.
+ */
+function toObject (arr) {
+  var res = {};
+  for (var i = 0; i < arr.length; i++) {
+    if (arr[i]) {
+      extend(res, arr[i]);
+    }
+  }
+  return res
+}
+
+/* eslint-disable no-unused-vars */
+
+/**
+ * Perform no operation.
+ * Stubbing args to make Flow happy without leaving useless transpiled code
+ * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).
+ */
+function noop (a, b, c) {}
+
+/**
+ * Always return false.
+ */
+var no = function (a, b, c) { return false; };
+
+/* eslint-enable no-unused-vars */
+
+/**
+ * Return the same value.
+ */
+var identity = function (_) { return _; };
+
+/**
+ * Check if two values are loosely equal - that is,
+ * if they are plain objects, do they have the same shape?
+ */
+function looseEqual (a, b) {
+  if (a === b) { return true }
+  var isObjectA = isObject(a);
+  var isObjectB = isObject(b);
+  if (isObjectA && isObjectB) {
+    try {
+      var isArrayA = Array.isArray(a);
+      var isArrayB = Array.isArray(b);
+      if (isArrayA && isArrayB) {
+        return a.length === b.length && a.every(function (e, i) {
+          return looseEqual(e, b[i])
+        })
+      } else if (a instanceof Date && b instanceof Date) {
+        return a.getTime() === b.getTime()
+      } else if (!isArrayA && !isArrayB) {
+        var keysA = Object.keys(a);
+        var keysB = Object.keys(b);
+        return keysA.length === keysB.length && keysA.every(function (key) {
+          return looseEqual(a[key], b[key])
+        })
+      } else {
+        /* istanbul ignore next */
+        return false
+      }
+    } catch (e) {
+      /* istanbul ignore next */
+      return false
+    }
+  } else if (!isObjectA && !isObjectB) {
+    return String(a) === String(b)
+  } else {
+    return false
+  }
+}
+
+/**
+ * Return the first index at which a loosely equal value can be
+ * found in the array (if value is a plain object, the array must
+ * contain an object of the same shape), or -1 if it is not present.
+ */
+function looseIndexOf (arr, val) {
+  for (var i = 0; i < arr.length; i++) {
+    if (looseEqual(arr[i], val)) { return i }
+  }
+  return -1
+}
+
+/**
+ * Ensure a function is called only once.
+ */
+function once (fn) {
+  var called = false;
+  return function () {
+    if (!called) {
+      called = true;
+      fn.apply(this, arguments);
+    }
+  }
+}
+
+var SSR_ATTR = 'data-server-rendered';
+
+var ASSET_TYPES = [
+  'component',
+  'directive',
+  'filter'
+];
+
+var LIFECYCLE_HOOKS = [
+  'beforeCreate',
+  'created',
+  'beforeMount',
+  'mounted',
+  'beforeUpdate',
+  'updated',
+  'beforeDestroy',
+  'destroyed',
+  'activated',
+  'deactivated',
+  'errorCaptured',
+  'serverPrefetch'
+];
+
+/*  */
+
+
+
+var config = ({
+  /**
+   * Option merge strategies (used in core/util/options)
+   */
+  // $flow-disable-line
+  optionMergeStrategies: Object.create(null),
+
+  /**
+   * Whether to suppress warnings.
+   */
+  silent: false,
+
+  /**
+   * Show production mode tip message on boot?
+   */
+  productionTip: "development" !== 'production',
+
+  /**
+   * Whether to enable devtools
+   */
+  devtools: "development" !== 'production',
+
+  /**
+   * Whether to record perf
+   */
+  performance: false,
+
+  /**
+   * Error handler for watcher errors
+   */
+  errorHandler: null,
+
+  /**
+   * Warn handler for watcher warns
+   */
+  warnHandler: null,
+
+  /**
+   * Ignore certain custom elements
+   */
+  ignoredElements: [],
+
+  /**
+   * Custom user key aliases for v-on
+   */
+  // $flow-disable-line
+  keyCodes: Object.create(null),
+
+  /**
+   * Check if a tag is reserved so that it cannot be registered as a
+   * component. This is platform-dependent and may be overwritten.
+   */
+  isReservedTag: no,
+
+  /**
+   * Check if an attribute is reserved so that it cannot be used as a component
+   * prop. This is platform-dependent and may be overwritten.
+   */
+  isReservedAttr: no,
+
+  /**
+   * Check if a tag is an unknown element.
+   * Platform-dependent.
+   */
+  isUnknownElement: no,
+
+  /**
+   * Get the namespace of an element
+   */
+  getTagNamespace: noop,
+
+  /**
+   * Parse the real tag name for the specific platform.
+   */
+  parsePlatformTagName: identity,
+
+  /**
+   * Check if an attribute must be bound using property, e.g. value
+   * Platform-dependent.
+   */
+  mustUseProp: no,
+
+  /**
+   * Perform updates asynchronously. Intended to be used by Vue Test Utils
+   * This will significantly reduce performance if set to false.
+   */
+  async: true,
+
+  /**
+   * Exposed for legacy reasons
+   */
+  _lifecycleHooks: LIFECYCLE_HOOKS
+});
+
+/*  */
+
+/**
+ * unicode letters used for parsing html tags, component names and property paths.
+ * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
+ * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
+ */
+var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+
+/**
+ * Check if a string starts with $ or _
+ */
+function isReserved (str) {
+  var c = (str + '').charCodeAt(0);
+  return c === 0x24 || c === 0x5F
+}
+
+/**
+ * Define a property.
+ */
+function def (obj, key, val, enumerable) {
+  Object.defineProperty(obj, key, {
+    value: val,
+    enumerable: !!enumerable,
+    writable: true,
+    configurable: true
+  });
+}
+
+/**
+ * Parse simple path.
+ */
+var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+function parsePath (path) {
+  if (bailRE.test(path)) {
+    return
+  }
+  var segments = path.split('.');
+  return function (obj) {
+    for (var i = 0; i < segments.length; i++) {
+      if (!obj) { return }
+      obj = obj[segments[i]];
+    }
+    return obj
+  }
+}
+
+/*  */
+
+// can we use __proto__?
+var hasProto = '__proto__' in {};
+
+// Browser environment sniffing
+var inBrowser = typeof window !== 'undefined';
+var inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;
+var weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();
+var UA = inBrowser && window.navigator.userAgent.toLowerCase();
+var isIE = UA && /msie|trident/.test(UA);
+var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');
+var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+var isPhantomJS = UA && /phantomjs/.test(UA);
+
+// Firefox has a "watch" function on Object.prototype...
+var nativeWatch = ({}).watch;
+
+var supportsPassive = false;
+if (inBrowser) {
+  try {
+    var opts = {};
+    Object.defineProperty(opts, 'passive', ({
+      get: function get () {
+        /* istanbul ignore next */
+        supportsPassive = true;
+      }
+    })); // https://github.com/facebook/flow/issues/285
+    window.addEventListener('test-passive', null, opts);
+  } catch (e) {}
+}
+
+// this needs to be lazy-evaled because vue may be required before
+// vue-server-renderer can set VUE_ENV
+var _isServer;
+var isServerRendering = function () {
+  if (_isServer === undefined) {
+    /* istanbul ignore if */
+    if (!inBrowser && !inWeex && typeof global !== 'undefined') {
+      // detect presence of vue-server-renderer and avoid
+      // Webpack shimming the process
+      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';
+    } else {
+      _isServer = false;
+    }
+  }
+  return _isServer
+};
+
+// detect devtools
+var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
+
+/* istanbul ignore next */
+function isNative (Ctor) {
+  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())
+}
+
+var hasSymbol =
+  typeof Symbol !== 'undefined' && isNative(Symbol) &&
+  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);
+
+var _Set;
+/* istanbul ignore if */ // $flow-disable-line
+if (typeof Set !== 'undefined' && isNative(Set)) {
+  // use native Set when available.
+  _Set = Set;
+} else {
+  // a non-standard Set polyfill that only works with primitive keys.
+  _Set = /*@__PURE__*/(function () {
+    function Set () {
+      this.set = Object.create(null);
+    }
+    Set.prototype.has = function has (key) {
+      return this.set[key] === true
+    };
+    Set.prototype.add = function add (key) {
+      this.set[key] = true;
+    };
+    Set.prototype.clear = function clear () {
+      this.set = Object.create(null);
+    };
+
+    return Set;
+  }());
+}
+
+/*  */
+
+var warn = noop;
+var tip = noop;
+var generateComponentTrace = (noop); // work around flow check
+var formatComponentName = (noop);
+
+{
+  var hasConsole = typeof console !== 'undefined';
+  var classifyRE = /(?:^|[-_])(\w)/g;
+  var classify = function (str) { return str
+    .replace(classifyRE, function (c) { return c.toUpperCase(); })
+    .replace(/[-_]/g, ''); };
+
+  warn = function (msg, vm) {
+    var trace = vm ? generateComponentTrace(vm) : '';
+
+    if (config.warnHandler) {
+      config.warnHandler.call(null, msg, vm, trace);
+    } else if (hasConsole && (!config.silent)) {
+      console.error(("[Vue warn]: " + msg + trace));
+    }
+  };
+
+  tip = function (msg, vm) {
+    if (hasConsole && (!config.silent)) {
+      console.warn("[Vue tip]: " + msg + (
+        vm ? generateComponentTrace(vm) : ''
+      ));
+    }
+  };
+
+  formatComponentName = function (vm, includeFile) {
+    if (vm.$root === vm) {
+      return '<Root>'
+    }
+    var options = typeof vm === 'function' && vm.cid != null
+      ? vm.options
+      : vm._isVue
+        ? vm.$options || vm.constructor.options
+        : vm;
+    var name = options.name || options._componentTag;
+    var file = options.__file;
+    if (!name && file) {
+      var match = file.match(/([^/\\]+)\.vue$/);
+      name = match && match[1];
+    }
+
+    return (
+      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
+      (file && includeFile !== false ? (" at " + file) : '')
+    )
+  };
+
+  var repeat = function (str, n) {
+    var res = '';
+    while (n) {
+      if (n % 2 === 1) { res += str; }
+      if (n > 1) { str += str; }
+      n >>= 1;
+    }
+    return res
+  };
+
+  generateComponentTrace = function (vm) {
+    if (vm._isVue && vm.$parent) {
+      var tree = [];
+      var currentRecursiveSequence = 0;
+      while (vm) {
+        if (tree.length > 0) {
+          var last = tree[tree.length - 1];
+          if (last.constructor === vm.constructor) {
+            currentRecursiveSequence++;
+            vm = vm.$parent;
+            continue
+          } else if (currentRecursiveSequence > 0) {
+            tree[tree.length - 1] = [last, currentRecursiveSequence];
+            currentRecursiveSequence = 0;
+          }
+        }
+        tree.push(vm);
+        vm = vm.$parent;
+      }
+      return '\n\nfound in\n\n' + tree
+        .map(function (vm, i) { return ("" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)
+            ? ((formatComponentName(vm[0])) + "... (" + (vm[1]) + " recursive calls)")
+            : formatComponentName(vm))); })
+        .join('\n')
+    } else {
+      return ("\n\n(found in " + (formatComponentName(vm)) + ")")
+    }
+  };
+}
+
+/*  */
+
+var uid = 0;
+
+/**
+ * A dep is an observable that can have multiple
+ * directives subscribing to it.
+ */
+var Dep = function Dep () {
+  this.id = uid++;
+  this.subs = [];
+};
+
+Dep.prototype.addSub = function addSub (sub) {
+  this.subs.push(sub);
+};
+
+Dep.prototype.removeSub = function removeSub (sub) {
+  remove(this.subs, sub);
+};
+
+Dep.prototype.depend = function depend () {
+  if (Dep.target) {
+    Dep.target.addDep(this);
+  }
+};
+
+Dep.prototype.notify = function notify () {
+  // stabilize the subscriber list first
+  var subs = this.subs.slice();
+  if (!config.async) {
+    // subs aren't sorted in scheduler if not running async
+    // we need to sort them now to make sure they fire in correct
+    // order
+    subs.sort(function (a, b) { return a.id - b.id; });
+  }
+  for (var i = 0, l = subs.length; i < l; i++) {
+    subs[i].update();
+  }
+};
+
+// The current target watcher being evaluated.
+// This is globally unique because only one watcher
+// can be evaluated at a time.
+Dep.target = null;
+var targetStack = [];
+
+function pushTarget (target) {
+  targetStack.push(target);
+  Dep.target = target;
+}
+
+function popTarget () {
+  targetStack.pop();
+  Dep.target = targetStack[targetStack.length - 1];
+}
+
+/*  */
+
+var VNode = function VNode (
+  tag,
+  data,
+  children,
+  text,
+  elm,
+  context,
+  componentOptions,
+  asyncFactory
+) {
+  this.tag = tag;
+  this.data = data;
+  this.children = children;
+  this.text = text;
+  this.elm = elm;
+  this.ns = undefined;
+  this.context = context;
+  this.fnContext = undefined;
+  this.fnOptions = undefined;
+  this.fnScopeId = undefined;
+  this.key = data && data.key;
+  this.componentOptions = componentOptions;
+  this.componentInstance = undefined;
+  this.parent = undefined;
+  this.raw = false;
+  this.isStatic = false;
+  this.isRootInsert = true;
+  this.isComment = false;
+  this.isCloned = false;
+  this.isOnce = false;
+  this.asyncFactory = asyncFactory;
+  this.asyncMeta = undefined;
+  this.isAsyncPlaceholder = false;
+};
+
+var prototypeAccessors = { child: { configurable: true } };
+
+// DEPRECATED: alias for componentInstance for backwards compat.
+/* istanbul ignore next */
+prototypeAccessors.child.get = function () {
+  return this.componentInstance
+};
+
+Object.defineProperties( VNode.prototype, prototypeAccessors );
+
+var createEmptyVNode = function (text) {
+  if ( text === void 0 ) text = '';
+
+  var node = new VNode();
+  node.text = text;
+  node.isComment = true;
+  return node
+};
+
+function createTextVNode (val) {
+  return new VNode(undefined, undefined, undefined, String(val))
+}
+
+// optimized shallow clone
+// used for static nodes and slot nodes because they may be reused across
+// multiple renders, cloning them avoids errors when DOM manipulations rely
+// on their elm reference.
+function cloneVNode (vnode) {
+  var cloned = new VNode(
+    vnode.tag,
+    vnode.data,
+    // #7975
+    // clone children array to avoid mutating original in case of cloning
+    // a child.
+    vnode.children && vnode.children.slice(),
+    vnode.text,
+    vnode.elm,
+    vnode.context,
+    vnode.componentOptions,
+    vnode.asyncFactory
+  );
+  cloned.ns = vnode.ns;
+  cloned.isStatic = vnode.isStatic;
+  cloned.key = vnode.key;
+  cloned.isComment = vnode.isComment;
+  cloned.fnContext = vnode.fnContext;
+  cloned.fnOptions = vnode.fnOptions;
+  cloned.fnScopeId = vnode.fnScopeId;
+  cloned.asyncMeta = vnode.asyncMeta;
+  cloned.isCloned = true;
+  return cloned
+}
+
+/*
+ * not type checking this file because flow doesn't play well with
+ * dynamically accessing methods on Array prototype
+ */
+
+var arrayProto = Array.prototype;
+var arrayMethods = Object.create(arrayProto);
+
+var methodsToPatch = [
+  'push',
+  'pop',
+  'shift',
+  'unshift',
+  'splice',
+  'sort',
+  'reverse'
+];
+
+/**
+ * Intercept mutating methods and emit events
+ */
+methodsToPatch.forEach(function (method) {
+  // cache original method
+  var original = arrayProto[method];
+  def(arrayMethods, method, function mutator () {
+    var args = [], len = arguments.length;
+    while ( len-- ) args[ len ] = arguments[ len ];
+
+    var result = original.apply(this, args);
+    var ob = this.__ob__;
+    var inserted;
+    switch (method) {
+      case 'push':
+      case 'unshift':
+        inserted = args;
+        break
+      case 'splice':
+        inserted = args.slice(2);
+        break
+    }
+    if (inserted) { ob.observeArray(inserted); }
+    // notify change
+    ob.dep.notify();
+    return result
+  });
+});
+
+/*  */
+
+var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
+
+/**
+ * In some cases we may want to disable observation inside a component's
+ * update computation.
+ */
+var shouldObserve = true;
+
+function toggleObserving (value) {
+  shouldObserve = value;
+}
+
+/**
+ * Observer class that is attached to each observed
+ * object. Once attached, the observer converts the target
+ * object's property keys into getter/setters that
+ * collect dependencies and dispatch updates.
+ */
+var Observer = function Observer (value) {
+  this.value = value;
+  this.dep = new Dep();
+  this.vmCount = 0;
+  def(value, '__ob__', this);
+  if (Array.isArray(value)) {
+    if (hasProto) {
+      protoAugment(value, arrayMethods);
+    } else {
+      copyAugment(value, arrayMethods, arrayKeys);
+    }
+    this.observeArray(value);
+  } else {
+    this.walk(value);
+  }
+};
+
+/**
+ * Walk through all properties and convert them into
+ * getter/setters. This method should only be called when
+ * value type is Object.
+ */
+Observer.prototype.walk = function walk (obj) {
+  var keys = Object.keys(obj);
+  for (var i = 0; i < keys.length; i++) {
+    defineReactive$$1(obj, keys[i]);
+  }
+};
+
+/**
+ * Observe a list of Array items.
+ */
+Observer.prototype.observeArray = function observeArray (items) {
+  for (var i = 0, l = items.length; i < l; i++) {
+    observe(items[i]);
+  }
+};
+
+// helpers
+
+/**
+ * Augment a target Object or Array by intercepting
+ * the prototype chain using __proto__
+ */
+function protoAugment (target, src) {
+  /* eslint-disable no-proto */
+  target.__proto__ = src;
+  /* eslint-enable no-proto */
+}
+
+/**
+ * Augment a target Object or Array by defining
+ * hidden properties.
+ */
+/* istanbul ignore next */
+function copyAugment (target, src, keys) {
+  for (var i = 0, l = keys.length; i < l; i++) {
+    var key = keys[i];
+    def(target, key, src[key]);
+  }
+}
+
+/**
+ * Attempt to create an observer instance for a value,
+ * returns the new observer if successfully observed,
+ * or the existing observer if the value already has one.
+ */
+function observe (value, asRootData) {
+  if (!isObject(value) || value instanceof VNode) {
+    return
+  }
+  var ob;
+  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
+    ob = value.__ob__;
+  } else if (
+    shouldObserve &&
+    !isServerRendering() &&
+    (Array.isArray(value) || isPlainObject(value)) &&
+    Object.isExtensible(value) &&
+    !value._isVue
+  ) {
+    ob = new Observer(value);
+  }
+  if (asRootData && ob) {
+    ob.vmCount++;
+  }
+  return ob
+}
+
+/**
+ * Define a reactive property on an Object.
+ */
+function defineReactive$$1 (
+  obj,
+  key,
+  val,
+  customSetter,
+  shallow
+) {
+  var dep = new Dep();
+
+  var property = Object.getOwnPropertyDescriptor(obj, key);
+  if (property && property.configurable === false) {
+    return
+  }
+
+  // cater for pre-defined getter/setters
+  var getter = property && property.get;
+  var setter = property && property.set;
+  if ((!getter || setter) && arguments.length === 2) {
+    val = obj[key];
+  }
+
+  var childOb = !shallow && observe(val);
+  Object.defineProperty(obj, key, {
+    enumerable: true,
+    configurable: true,
+    get: function reactiveGetter () {
+      var value = getter ? getter.call(obj) : val;
+      if (Dep.target) {
+        dep.depend();
+        if (childOb) {
+          childOb.dep.depend();
+          if (Array.isArray(value)) {
+            dependArray(value);
+          }
+        }
+      }
+      return value
+    },
+    set: function reactiveSetter (newVal) {
+      var value = getter ? getter.call(obj) : val;
+      /* eslint-disable no-self-compare */
+      if (newVal === value || (newVal !== newVal && value !== value)) {
+        return
+      }
+      /* eslint-enable no-self-compare */
+      if (customSetter) {
+        customSetter();
+      }
+      // #7981: for accessor properties without setter
+      if (getter && !setter) { return }
+      if (setter) {
+        setter.call(obj, newVal);
+      } else {
+        val = newVal;
+      }
+      childOb = !shallow && observe(newVal);
+      dep.notify();
+    }
+  });
+}
+
+/**
+ * Set a property on an object. Adds the new property and
+ * triggers change notification if the property doesn't
+ * already exist.
+ */
+function set (target, key, val) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot set reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.length = Math.max(target.length, key);
+    target.splice(key, 1, val);
+    return val
+  }
+  if (key in target && !(key in Object.prototype)) {
+    target[key] = val;
+    return val
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid adding reactive properties to a Vue instance or its root $data ' +
+      'at runtime - declare it upfront in the data option.'
+    );
+    return val
+  }
+  if (!ob) {
+    target[key] = val;
+    return val
+  }
+  defineReactive$$1(ob.value, key, val);
+  ob.dep.notify();
+  return val
+}
+
+/**
+ * Delete a property and trigger change if necessary.
+ */
+function del (target, key) {
+  if (isUndef(target) || isPrimitive(target)
+  ) {
+    warn(("Cannot delete reactive property on undefined, null, or primitive value: " + ((target))));
+  }
+  if (Array.isArray(target) && isValidArrayIndex(key)) {
+    target.splice(key, 1);
+    return
+  }
+  var ob = (target).__ob__;
+  if (target._isVue || (ob && ob.vmCount)) {
+    warn(
+      'Avoid deleting properties on a Vue instance or its root $data ' +
+      '- just set it to null.'
+    );
+    return
+  }
+  if (!hasOwn(target, key)) {
+    return
+  }
+  delete target[key];
+  if (!ob) {
+    return
+  }
+  ob.dep.notify();
+}
+
+/**
+ * Collect dependencies on array elements when the array is touched, since
+ * we cannot intercept array element access like property getters.
+ */
+function dependArray (value) {
+  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
+    e = value[i];
+    e && e.__ob__ && e.__ob__.dep.depend();
+    if (Array.isArray(e)) {
+      dependArray(e);
+    }
+  }
+}
+
+/*  */
+
+/**
+ * Option overwriting strategies are functions that handle
+ * how to merge a parent option value and a child option
+ * value into the final value.
+ */
+var strats = config.optionMergeStrategies;
+
+/**
+ * Options with restrictions
+ */
+{
+  strats.el = strats.propsData = function (parent, child, vm, key) {
+    if (!vm) {
+      warn(
+        "option \"" + key + "\" can only be used during instance " +
+        'creation with the `new` keyword.'
+      );
+    }
+    return defaultStrat(parent, child)
+  };
+}
+
+/**
+ * Helper that recursively merges two data objects together.
+ */
+function mergeData (to, from) {
+  if (!from) { return to }
+  var key, toVal, fromVal;
+
+  var keys = hasSymbol
+    ? Reflect.ownKeys(from)
+    : Object.keys(from);
+
+  for (var i = 0; i < keys.length; i++) {
+    key = keys[i];
+    // in case the object is already observed...
+    if (key === '__ob__') { continue }
+    toVal = to[key];
+    fromVal = from[key];
+    if (!hasOwn(to, key)) {
+      set(to, key, fromVal);
+    } else if (
+      toVal !== fromVal &&
+      isPlainObject(toVal) &&
+      isPlainObject(fromVal)
+    ) {
+      mergeData(toVal, fromVal);
+    }
+  }
+  return to
+}
+
+/**
+ * Data
+ */
+function mergeDataOrFn (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    // in a Vue.extend merge, both should be functions
+    if (!childVal) {
+      return parentVal
+    }
+    if (!parentVal) {
+      return childVal
+    }
+    // when parentVal & childVal are both present,
+    // we need to return a function that returns the
+    // merged result of both functions... no need to
+    // check if parentVal is a function here because
+    // it has to be a function to pass previous merges.
+    return function mergedDataFn () {
+      return mergeData(
+        typeof childVal === 'function' ? childVal.call(this, this) : childVal,
+        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal
+      )
+    }
+  } else {
+    return function mergedInstanceDataFn () {
+      // instance merge
+      var instanceData = typeof childVal === 'function'
+        ? childVal.call(vm, vm)
+        : childVal;
+      var defaultData = typeof parentVal === 'function'
+        ? parentVal.call(vm, vm)
+        : parentVal;
+      if (instanceData) {
+        return mergeData(instanceData, defaultData)
+      } else {
+        return defaultData
+      }
+    }
+  }
+}
+
+strats.data = function (
+  parentVal,
+  childVal,
+  vm
+) {
+  if (!vm) {
+    if (childVal && typeof childVal !== 'function') {
+      warn(
+        'The "data" option should be a function ' +
+        'that returns a per-instance value in component ' +
+        'definitions.',
+        vm
+      );
+
+      return parentVal
+    }
+    return mergeDataOrFn(parentVal, childVal)
+  }
+
+  return mergeDataOrFn(parentVal, childVal, vm)
+};
+
+/**
+ * Hooks and props are merged as arrays.
+ */
+function mergeHook (
+  parentVal,
+  childVal
+) {
+  var res = childVal
+    ? parentVal
+      ? parentVal.concat(childVal)
+      : Array.isArray(childVal)
+        ? childVal
+        : [childVal]
+    : parentVal;
+  return res
+    ? dedupeHooks(res)
+    : res
+}
+
+function dedupeHooks (hooks) {
+  var res = [];
+  for (var i = 0; i < hooks.length; i++) {
+    if (res.indexOf(hooks[i]) === -1) {
+      res.push(hooks[i]);
+    }
+  }
+  return res
+}
+
+LIFECYCLE_HOOKS.forEach(function (hook) {
+  strats[hook] = mergeHook;
+});
+
+/**
+ * Assets
+ *
+ * When a vm is present (instance creation), we need to do
+ * a three-way merge between constructor options, instance
+ * options and parent options.
+ */
+function mergeAssets (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  var res = Object.create(parentVal || null);
+  if (childVal) {
+    assertObjectType(key, childVal, vm);
+    return extend(res, childVal)
+  } else {
+    return res
+  }
+}
+
+ASSET_TYPES.forEach(function (type) {
+  strats[type + 's'] = mergeAssets;
+});
+
+/**
+ * Watchers.
+ *
+ * Watchers hashes should not overwrite one
+ * another, so we merge them as arrays.
+ */
+strats.watch = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  // work around Firefox's Object.prototype.watch...
+  if (parentVal === nativeWatch) { parentVal = undefined; }
+  if (childVal === nativeWatch) { childVal = undefined; }
+  /* istanbul ignore if */
+  if (!childVal) { return Object.create(parentVal || null) }
+  {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = {};
+  extend(ret, parentVal);
+  for (var key$1 in childVal) {
+    var parent = ret[key$1];
+    var child = childVal[key$1];
+    if (parent && !Array.isArray(parent)) {
+      parent = [parent];
+    }
+    ret[key$1] = parent
+      ? parent.concat(child)
+      : Array.isArray(child) ? child : [child];
+  }
+  return ret
+};
+
+/**
+ * Other object hashes.
+ */
+strats.props =
+strats.methods =
+strats.inject =
+strats.computed = function (
+  parentVal,
+  childVal,
+  vm,
+  key
+) {
+  if (childVal && "development" !== 'production') {
+    assertObjectType(key, childVal, vm);
+  }
+  if (!parentVal) { return childVal }
+  var ret = Object.create(null);
+  extend(ret, parentVal);
+  if (childVal) { extend(ret, childVal); }
+  return ret
+};
+strats.provide = mergeDataOrFn;
+
+/**
+ * Default strategy.
+ */
+var defaultStrat = function (parentVal, childVal) {
+  return childVal === undefined
+    ? parentVal
+    : childVal
+};
+
+/**
+ * Validate component names
+ */
+function checkComponents (options) {
+  for (var key in options.components) {
+    validateComponentName(key);
+  }
+}
+
+function validateComponentName (name) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+    warn(
+      'Invalid component name: "' + name + '". Component names ' +
+      'should conform to valid custom element name in html5 specification.'
+    );
+  }
+  if (isBuiltInTag(name) || config.isReservedTag(name)) {
+    warn(
+      'Do not use built-in or reserved HTML elements as component ' +
+      'id: ' + name
+    );
+  }
+}
+
+/**
+ * Ensure all props option syntax are normalized into the
+ * Object-based format.
+ */
+function normalizeProps (options, vm) {
+  var props = options.props;
+  if (!props) { return }
+  var res = {};
+  var i, val, name;
+  if (Array.isArray(props)) {
+    i = props.length;
+    while (i--) {
+      val = props[i];
+      if (typeof val === 'string') {
+        name = camelize(val);
+        res[name] = { type: null };
+      } else {
+        warn('props must be strings when using array syntax.');
+      }
+    }
+  } else if (isPlainObject(props)) {
+    for (var key in props) {
+      val = props[key];
+      name = camelize(key);
+      res[name] = isPlainObject(val)
+        ? val
+        : { type: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"props\": expected an Array or an Object, " +
+      "but got " + (toRawType(props)) + ".",
+      vm
+    );
+  }
+  options.props = res;
+}
+
+/**
+ * Normalize all injections into Object-based format
+ */
+function normalizeInject (options, vm) {
+  var inject = options.inject;
+  if (!inject) { return }
+  var normalized = options.inject = {};
+  if (Array.isArray(inject)) {
+    for (var i = 0; i < inject.length; i++) {
+      normalized[inject[i]] = { from: inject[i] };
+    }
+  } else if (isPlainObject(inject)) {
+    for (var key in inject) {
+      var val = inject[key];
+      normalized[key] = isPlainObject(val)
+        ? extend({ from: key }, val)
+        : { from: val };
+    }
+  } else {
+    warn(
+      "Invalid value for option \"inject\": expected an Array or an Object, " +
+      "but got " + (toRawType(inject)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Normalize raw function directives into object format.
+ */
+function normalizeDirectives (options) {
+  var dirs = options.directives;
+  if (dirs) {
+    for (var key in dirs) {
+      var def$$1 = dirs[key];
+      if (typeof def$$1 === 'function') {
+        dirs[key] = { bind: def$$1, update: def$$1 };
+      }
+    }
+  }
+}
+
+function assertObjectType (name, value, vm) {
+  if (!isPlainObject(value)) {
+    warn(
+      "Invalid value for option \"" + name + "\": expected an Object, " +
+      "but got " + (toRawType(value)) + ".",
+      vm
+    );
+  }
+}
+
+/**
+ * Merge two option objects into a new one.
+ * Core utility used in both instantiation and inheritance.
+ */
+function mergeOptions (
+  parent,
+  child,
+  vm
+) {
+  {
+    checkComponents(child);
+  }
+
+  if (typeof child === 'function') {
+    child = child.options;
+  }
+
+  normalizeProps(child, vm);
+  normalizeInject(child, vm);
+  normalizeDirectives(child);
+
+  // Apply extends and mixins on the child options,
+  // but only if it is a raw options object that isn't
+  // the result of another mergeOptions call.
+  // Only merged options has the _base property.
+  if (!child._base) {
+    if (child.extends) {
+      parent = mergeOptions(parent, child.extends, vm);
+    }
+    if (child.mixins) {
+      for (var i = 0, l = child.mixins.length; i < l; i++) {
+        parent = mergeOptions(parent, child.mixins[i], vm);
+      }
+    }
+  }
+
+  var options = {};
+  var key;
+  for (key in parent) {
+    mergeField(key);
+  }
+  for (key in child) {
+    if (!hasOwn(parent, key)) {
+      mergeField(key);
+    }
+  }
+  function mergeField (key) {
+    var strat = strats[key] || defaultStrat;
+    options[key] = strat(parent[key], child[key], vm, key);
+  }
+  return options
+}
+
+/**
+ * Resolve an asset.
+ * This function is used because child instances need access
+ * to assets defined in its ancestor chain.
+ */
+function resolveAsset (
+  options,
+  type,
+  id,
+  warnMissing
+) {
+  /* istanbul ignore if */
+  if (typeof id !== 'string') {
+    return
+  }
+  var assets = options[type];
+  // check local registration variations first
+  if (hasOwn(assets, id)) { return assets[id] }
+  var camelizedId = camelize(id);
+  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
+  var PascalCaseId = capitalize(camelizedId);
+  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
+  // fallback to prototype chain
+  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
+  if (warnMissing && !res) {
+    warn(
+      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
+      options
+    );
+  }
+  return res
+}
+
+/*  */
+
+
+
+function validateProp (
+  key,
+  propOptions,
+  propsData,
+  vm
+) {
+  var prop = propOptions[key];
+  var absent = !hasOwn(propsData, key);
+  var value = propsData[key];
+  // boolean casting
+  var booleanIndex = getTypeIndex(Boolean, prop.type);
+  if (booleanIndex > -1) {
+    if (absent && !hasOwn(prop, 'default')) {
+      value = false;
+    } else if (value === '' || value === hyphenate(key)) {
+      // only cast empty string / same name to boolean if
+      // boolean has higher priority
+      var stringIndex = getTypeIndex(String, prop.type);
+      if (stringIndex < 0 || booleanIndex < stringIndex) {
+        value = true;
+      }
+    }
+  }
+  // check default value
+  if (value === undefined) {
+    value = getPropDefaultValue(vm, prop, key);
+    // since the default value is a fresh copy,
+    // make sure to observe it.
+    var prevShouldObserve = shouldObserve;
+    toggleObserving(true);
+    observe(value);
+    toggleObserving(prevShouldObserve);
+  }
+  {
+    assertProp(prop, key, value, vm, absent);
+  }
+  return value
+}
+
+/**
+ * Get the default value of a prop.
+ */
+function getPropDefaultValue (vm, prop, key) {
+  // no default, return undefined
+  if (!hasOwn(prop, 'default')) {
+    return undefined
+  }
+  var def = prop.default;
+  // warn against non-factory defaults for Object & Array
+  if (isObject(def)) {
+    warn(
+      'Invalid default value for prop "' + key + '": ' +
+      'Props with type Object/Array must use a factory function ' +
+      'to return the default value.',
+      vm
+    );
+  }
+  // the raw prop value was also undefined from previous render,
+  // return previous default value to avoid unnecessary watcher trigger
+  if (vm && vm.$options.propsData &&
+    vm.$options.propsData[key] === undefined &&
+    vm._props[key] !== undefined
+  ) {
+    return vm._props[key]
+  }
+  // call factory function for non-Function types
+  // a value is Function if its prototype is function even across different execution context
+  return typeof def === 'function' && getType(prop.type) !== 'Function'
+    ? def.call(vm)
+    : def
+}
+
+/**
+ * Assert whether a prop is valid.
+ */
+function assertProp (
+  prop,
+  name,
+  value,
+  vm,
+  absent
+) {
+  if (prop.required && absent) {
+    warn(
+      'Missing required prop: "' + name + '"',
+      vm
+    );
+    return
+  }
+  if (value == null && !prop.required) {
+    return
+  }
+  var type = prop.type;
+  var valid = !type || type === true;
+  var expectedTypes = [];
+  if (type) {
+    if (!Array.isArray(type)) {
+      type = [type];
+    }
+    for (var i = 0; i < type.length && !valid; i++) {
+      var assertedType = assertType(value, type[i]);
+      expectedTypes.push(assertedType.expectedType || '');
+      valid = assertedType.valid;
+    }
+  }
+
+  if (!valid) {
+    warn(
+      getInvalidTypeMessage(name, value, expectedTypes),
+      vm
+    );
+    return
+  }
+  var validator = prop.validator;
+  if (validator) {
+    if (!validator(value)) {
+      warn(
+        'Invalid prop: custom validator check failed for prop "' + name + '".',
+        vm
+      );
+    }
+  }
+}
+
+var simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;
+
+function assertType (value, type) {
+  var valid;
+  var expectedType = getType(type);
+  if (simpleCheckRE.test(expectedType)) {
+    var t = typeof value;
+    valid = t === expectedType.toLowerCase();
+    // for primitive wrapper objects
+    if (!valid && t === 'object') {
+      valid = value instanceof type;
+    }
+  } else if (expectedType === 'Object') {
+    valid = isPlainObject(value);
+  } else if (expectedType === 'Array') {
+    valid = Array.isArray(value);
+  } else {
+    valid = value instanceof type;
+  }
+  return {
+    valid: valid,
+    expectedType: expectedType
+  }
+}
+
+/**
+ * Use function string name to check built-in types,
+ * because a simple equality check will fail when running
+ * across different vms / iframes.
+ */
+function getType (fn) {
+  var match = fn && fn.toString().match(/^\s*function (\w+)/);
+  return match ? match[1] : ''
+}
+
+function isSameType (a, b) {
+  return getType(a) === getType(b)
+}
+
+function getTypeIndex (type, expectedTypes) {
+  if (!Array.isArray(expectedTypes)) {
+    return isSameType(expectedTypes, type) ? 0 : -1
+  }
+  for (var i = 0, len = expectedTypes.length; i < len; i++) {
+    if (isSameType(expectedTypes[i], type)) {
+      return i
+    }
+  }
+  return -1
+}
+
+function getInvalidTypeMessage (name, value, expectedTypes) {
+  var message = "Invalid prop: type check failed for prop \"" + name + "\"." +
+    " Expected " + (expectedTypes.map(capitalize).join(', '));
+  var expectedType = expectedTypes[0];
+  var receivedType = toRawType(value);
+  var expectedValue = styleValue(value, expectedType);
+  var receivedValue = styleValue(value, receivedType);
+  // check if we need to specify expected value
+  if (expectedTypes.length === 1 &&
+      isExplicable(expectedType) &&
+      !isBoolean(expectedType, receivedType)) {
+    message += " with value " + expectedValue;
+  }
+  message += ", got " + receivedType + " ";
+  // check if we need to specify received value
+  if (isExplicable(receivedType)) {
+    message += "with value " + receivedValue + ".";
+  }
+  return message
+}
+
+function styleValue (value, type) {
+  if (type === 'String') {
+    return ("\"" + value + "\"")
+  } else if (type === 'Number') {
+    return ("" + (Number(value)))
+  } else {
+    return ("" + value)
+  }
+}
+
+function isExplicable (value) {
+  var explicitTypes = ['string', 'number', 'boolean'];
+  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })
+}
+
+function isBoolean () {
+  var args = [], len = arguments.length;
+  while ( len-- ) args[ len ] = arguments[ len ];
+
+  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })
+}
+
+/*  */
+
+function handleError (err, vm, info) {
+  if (vm) {
+    var cur = vm;
+    while ((cur = cur.$parent)) {
+      var hooks = cur.$options.errorCaptured;
+      if (hooks) {
+        for (var i = 0; i < hooks.length; i++) {
+          try {
+            var capture = hooks[i].call(cur, err, vm, info) === false;
+            if (capture) { return }
+          } catch (e) {
+            globalHandleError(e, cur, 'errorCaptured hook');
+          }
+        }
+      }
+    }
+  }
+  globalHandleError(err, vm, info);
+}
+
+function invokeWithErrorHandling (
+  handler,
+  context,
+  args,
+  vm,
+  info
+) {
+  var res;
+  try {
+    res = args ? handler.apply(context, args) : handler.call(context);
+    if (isPromise(res)) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+    }
+  } catch (e) {
+    handleError(e, vm, info);
+  }
+  return res
+}
+
+function globalHandleError (err, vm, info) {
+  if (config.errorHandler) {
+    try {
+      return config.errorHandler.call(null, err, vm, info)
+    } catch (e) {
+      logError(e, null, 'config.errorHandler');
+    }
+  }
+  logError(err, vm, info);
+}
+
+function logError (err, vm, info) {
+  {
+    warn(("Error in " + info + ": \"" + (err.toString()) + "\""), vm);
+  }
+  /* istanbul ignore else */
+  if ((inBrowser || inWeex) && typeof console !== 'undefined') {
+    console.error(err);
+  } else {
+    throw err
+  }
+}
+
+/*  */
+
+var isUsingMicroTask = false;
+
+var callbacks = [];
+var pending = false;
+
+function flushCallbacks () {
+  pending = false;
+  var copies = callbacks.slice(0);
+  callbacks.length = 0;
+  for (var i = 0; i < copies.length; i++) {
+    copies[i]();
+  }
+}
+
+// Here we have async deferring wrappers using microtasks.
+// In 2.5 we used (macro) tasks (in combination with microtasks).
+// However, it has subtle problems when state is changed right before repaint
+// (e.g. #6813, out-in transitions).
+// Also, using (macro) tasks in event handler would cause some weird behaviors
+// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).
+// So we now use microtasks everywhere, again.
+// A major drawback of this tradeoff is that there are some scenarios
+// where microtasks have too high a priority and fire in between supposedly
+// sequential events (e.g. #4521, #6690, which have workarounds)
+// or even between bubbling of the same event (#6566).
+var timerFunc;
+
+// The nextTick behavior leverages the microtask queue, which can be accessed
+// via either native Promise.then or MutationObserver.
+// MutationObserver has wider support, however it is seriously bugged in
+// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
+// completely stops working after triggering a few times... so, if native
+// Promise is available, we will use it:
+/* istanbul ignore next, $flow-disable-line */
+if (typeof Promise !== 'undefined' && isNative(Promise)) {
+  var p = Promise.resolve();
+  timerFunc = function () {
+    p.then(flushCallbacks);
+    // In problematic UIWebViews, Promise.then doesn't completely break, but
+    // it can get stuck in a weird state where callbacks are pushed into the
+    // microtask queue but the queue isn't being flushed, until the browser
+    // needs to do some other work, e.g. handle a timer. Therefore we can
+    // "force" the microtask queue to be flushed by adding an empty timer.
+    if (isIOS) { setTimeout(noop); }
+  };
+  isUsingMicroTask = true;
+} else if (!isIE && typeof MutationObserver !== 'undefined' && (
+  isNative(MutationObserver) ||
+  // PhantomJS and iOS 7.x
+  MutationObserver.toString() === '[object MutationObserverConstructor]'
+)) {
+  // Use MutationObserver where native Promise is not available,
+  // e.g. PhantomJS, iOS7, Android 4.4
+  // (#6466 MutationObserver is unreliable in IE11)
+  var counter = 1;
+  var observer = new MutationObserver(flushCallbacks);
+  var textNode = document.createTextNode(String(counter));
+  observer.observe(textNode, {
+    characterData: true
+  });
+  timerFunc = function () {
+    counter = (counter + 1) % 2;
+    textNode.data = String(counter);
+  };
+  isUsingMicroTask = true;
+} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
+  // Fallback to setImmediate.
+  // Techinically it leverages the (macro) task queue,
+  // but it is still a better choice than setTimeout.
+  timerFunc = function () {
+    setImmediate(flushCallbacks);
+  };
+} else {
+  // Fallback to setTimeout.
+  timerFunc = function () {
+    setTimeout(flushCallbacks, 0);
+  };
+}
+
+function nextTick (cb, ctx) {
+  var _resolve;
+  callbacks.push(function () {
+    if (cb) {
+      try {
+        cb.call(ctx);
+      } catch (e) {
+        handleError(e, ctx, 'nextTick');
+      }
+    } else if (_resolve) {
+      _resolve(ctx);
+    }
+  });
+  if (!pending) {
+    pending = true;
+    timerFunc();
+  }
+  // $flow-disable-line
+  if (!cb && typeof Promise !== 'undefined') {
+    return new Promise(function (resolve) {
+      _resolve = resolve;
+    })
+  }
+}
+
+/*  */
+
+/* not type checking this file because flow doesn't play well with Proxy */
+
+var initProxy;
+
+{
+  var allowedGlobals = makeMap(
+    'Infinity,undefined,NaN,isFinite,isNaN,' +
+    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
+    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
+    'require' // for Webpack/Browserify
+  );
+
+  var warnNonPresent = function (target, key) {
+    warn(
+      "Property or method \"" + key + "\" is not defined on the instance but " +
+      'referenced during render. Make sure that this property is reactive, ' +
+      'either in the data option, or for class-based components, by ' +
+      'initializing the property. ' +
+      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',
+      target
+    );
+  };
+
+  var warnReservedPrefix = function (target, key) {
+    warn(
+      "Property \"" + key + "\" must be accessed with \"$data." + key + "\" because " +
+      'properties starting with "$" or "_" are not proxied in the Vue instance to ' +
+      'prevent conflicts with Vue internals' +
+      'See: https://vuejs.org/v2/api/#data',
+      target
+    );
+  };
+
+  var hasProxy =
+    typeof Proxy !== 'undefined' && isNative(Proxy);
+
+  if (hasProxy) {
+    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');
+    config.keyCodes = new Proxy(config.keyCodes, {
+      set: function set (target, key, value) {
+        if (isBuiltInModifier(key)) {
+          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
+          return false
+        } else {
+          target[key] = value;
+          return true
+        }
+      }
+    });
+  }
+
+  var hasHandler = {
+    has: function has (target, key) {
+      var has = key in target;
+      var isAllowed = allowedGlobals(key) ||
+        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));
+      if (!has && !isAllowed) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return has || !isAllowed
+    }
+  };
+
+  var getHandler = {
+    get: function get (target, key) {
+      if (typeof key === 'string' && !(key in target)) {
+        if (key in target.$data) { warnReservedPrefix(target, key); }
+        else { warnNonPresent(target, key); }
+      }
+      return target[key]
+    }
+  };
+
+  initProxy = function initProxy (vm) {
+    if (hasProxy) {
+      // determine which proxy handler to use
+      var options = vm.$options;
+      var handlers = options.render && options.render._withStripped
+        ? getHandler
+        : hasHandler;
+      vm._renderProxy = new Proxy(vm, handlers);
+    } else {
+      vm._renderProxy = vm;
+    }
+  };
+}
+
+/*  */
+
+var seenObjects = new _Set();
+
+/**
+ * Recursively traverse an object to evoke all converted
+ * getters, so that every nested property inside the object
+ * is collected as a "deep" dependency.
+ */
+function traverse (val) {
+  _traverse(val, seenObjects);
+  seenObjects.clear();
+}
+
+function _traverse (val, seen) {
+  var i, keys;
+  var isA = Array.isArray(val);
+  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {
+    return
+  }
+  if (val.__ob__) {
+    var depId = val.__ob__.dep.id;
+    if (seen.has(depId)) {
+      return
+    }
+    seen.add(depId);
+  }
+  if (isA) {
+    i = val.length;
+    while (i--) { _traverse(val[i], seen); }
+  } else {
+    keys = Object.keys(val);
+    i = keys.length;
+    while (i--) { _traverse(val[keys[i]], seen); }
+  }
+}
+
+var mark;
+var measure;
+
+{
+  var perf = inBrowser && window.performance;
+  /* istanbul ignore if */
+  if (
+    perf &&
+    perf.mark &&
+    perf.measure &&
+    perf.clearMarks &&
+    perf.clearMeasures
+  ) {
+    mark = function (tag) { return perf.mark(tag); };
+    measure = function (name, startTag, endTag) {
+      perf.measure(name, startTag, endTag);
+      perf.clearMarks(startTag);
+      perf.clearMarks(endTag);
+      // perf.clearMeasures(name)
+    };
+  }
+}
+
+/*  */
+
+var normalizeEvent = cached(function (name) {
+  var passive = name.charAt(0) === '&';
+  name = passive ? name.slice(1) : name;
+  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
+  name = once$$1 ? name.slice(1) : name;
+  var capture = name.charAt(0) === '!';
+  name = capture ? name.slice(1) : name;
+  return {
+    name: name,
+    once: once$$1,
+    capture: capture,
+    passive: passive
+  }
+});
+
+function createFnInvoker (fns, vm) {
+  function invoker () {
+    var arguments$1 = arguments;
+
+    var fns = invoker.fns;
+    if (Array.isArray(fns)) {
+      var cloned = fns.slice();
+      for (var i = 0; i < cloned.length; i++) {
+        invokeWithErrorHandling(cloned[i], null, arguments$1, vm, "v-on handler");
+      }
+    } else {
+      // return handler return value for single handlers
+      return invokeWithErrorHandling(fns, null, arguments, vm, "v-on handler")
+    }
+  }
+  invoker.fns = fns;
+  return invoker
+}
+
+function updateListeners (
+  on,
+  oldOn,
+  add,
+  remove$$1,
+  createOnceHandler,
+  vm
+) {
+  var name, def$$1, cur, old, event;
+  for (name in on) {
+    def$$1 = cur = on[name];
+    old = oldOn[name];
+    event = normalizeEvent(name);
+    if (isUndef(cur)) {
+      warn(
+        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
+        vm
+      );
+    } else if (isUndef(old)) {
+      if (isUndef(cur.fns)) {
+        cur = on[name] = createFnInvoker(cur, vm);
+      }
+      if (isTrue(event.once)) {
+        cur = on[name] = createOnceHandler(event.name, cur, event.capture);
+      }
+      add(event.name, cur, event.capture, event.passive, event.params);
+    } else if (cur !== old) {
+      old.fns = cur;
+      on[name] = old;
+    }
+  }
+  for (name in oldOn) {
+    if (isUndef(on[name])) {
+      event = normalizeEvent(name);
+      remove$$1(event.name, oldOn[name], event.capture);
+    }
+  }
+}
+
+/*  */
+
+function mergeVNodeHook (def, hookKey, hook) {
+  if (def instanceof VNode) {
+    def = def.data.hook || (def.data.hook = {});
+  }
+  var invoker;
+  var oldHook = def[hookKey];
+
+  function wrappedHook () {
+    hook.apply(this, arguments);
+    // important: remove merged hook to ensure it's called only once
+    // and prevent memory leak
+    remove(invoker.fns, wrappedHook);
+  }
+
+  if (isUndef(oldHook)) {
+    // no existing hook
+    invoker = createFnInvoker([wrappedHook]);
+  } else {
+    /* istanbul ignore if */
+    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {
+      // already a merged invoker
+      invoker = oldHook;
+      invoker.fns.push(wrappedHook);
+    } else {
+      // existing plain hook
+      invoker = createFnInvoker([oldHook, wrappedHook]);
+    }
+  }
+
+  invoker.merged = true;
+  def[hookKey] = invoker;
+}
+
+/*  */
+
+function extractPropsFromVNodeData (
+  data,
+  Ctor,
+  tag
+) {
+  // we are only extracting raw values here.
+  // validation and default values are handled in the child
+  // component itself.
+  var propOptions = Ctor.options.props;
+  if (isUndef(propOptions)) {
+    return
+  }
+  var res = {};
+  var attrs = data.attrs;
+  var props = data.props;
+  if (isDef(attrs) || isDef(props)) {
+    for (var key in propOptions) {
+      var altKey = hyphenate(key);
+      {
+        var keyInLowerCase = key.toLowerCase();
+        if (
+          key !== keyInLowerCase &&
+          attrs && hasOwn(attrs, keyInLowerCase)
+        ) {
+          tip(
+            "Prop \"" + keyInLowerCase + "\" is passed to component " +
+            (formatComponentName(tag || Ctor)) + ", but the declared prop name is" +
+            " \"" + key + "\". " +
+            "Note that HTML attributes are case-insensitive and camelCased " +
+            "props need to use their kebab-case equivalents when using in-DOM " +
+            "templates. You should probably use \"" + altKey + "\" instead of \"" + key + "\"."
+          );
+        }
+      }
+      checkProp(res, props, key, altKey, true) ||
+      checkProp(res, attrs, key, altKey, false);
+    }
+  }
+  return res
+}
+
+function checkProp (
+  res,
+  hash,
+  key,
+  altKey,
+  preserve
+) {
+  if (isDef(hash)) {
+    if (hasOwn(hash, key)) {
+      res[key] = hash[key];
+      if (!preserve) {
+        delete hash[key];
+      }
+      return true
+    } else if (hasOwn(hash, altKey)) {
+      res[key] = hash[altKey];
+      if (!preserve) {
+        delete hash[altKey];
+      }
+      return true
+    }
+  }
+  return false
+}
+
+/*  */
+
+// The template compiler attempts to minimize the need for normalization by
+// statically analyzing the template at compile time.
+//
+// For plain HTML markup, normalization can be completely skipped because the
+// generated render function is guaranteed to return Array<VNode>. There are
+// two cases where extra normalization is needed:
+
+// 1. When the children contains components - because a functional component
+// may return an Array instead of a single root. In this case, just a simple
+// normalization is needed - if any child is an Array, we flatten the whole
+// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
+// because functional components already normalize their own children.
+function simpleNormalizeChildren (children) {
+  for (var i = 0; i < children.length; i++) {
+    if (Array.isArray(children[i])) {
+      return Array.prototype.concat.apply([], children)
+    }
+  }
+  return children
+}
+
+// 2. When the children contains constructs that always generated nested Arrays,
+// e.g. <template>, <slot>, v-for, or when the children is provided by user
+// with hand-written render functions / JSX. In such cases a full normalization
+// is needed to cater to all possible types of children values.
+function normalizeChildren (children) {
+  return isPrimitive(children)
+    ? [createTextVNode(children)]
+    : Array.isArray(children)
+      ? normalizeArrayChildren(children)
+      : undefined
+}
+
+function isTextNode (node) {
+  return isDef(node) && isDef(node.text) && isFalse(node.isComment)
+}
+
+function normalizeArrayChildren (children, nestedIndex) {
+  var res = [];
+  var i, c, lastIndex, last;
+  for (i = 0; i < children.length; i++) {
+    c = children[i];
+    if (isUndef(c) || typeof c === 'boolean') { continue }
+    lastIndex = res.length - 1;
+    last = res[lastIndex];
+    //  nested
+    if (Array.isArray(c)) {
+      if (c.length > 0) {
+        c = normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i));
+        // merge adjacent text nodes
+        if (isTextNode(c[0]) && isTextNode(last)) {
+          res[lastIndex] = createTextVNode(last.text + (c[0]).text);
+          c.shift();
+        }
+        res.push.apply(res, c);
+      }
+    } else if (isPrimitive(c)) {
+      if (isTextNode(last)) {
+        // merge adjacent text nodes
+        // this is necessary for SSR hydration because text nodes are
+        // essentially merged when rendered to HTML strings
+        res[lastIndex] = createTextVNode(last.text + c);
+      } else if (c !== '') {
+        // convert primitive to vnode
+        res.push(createTextVNode(c));
+      }
+    } else {
+      if (isTextNode(c) && isTextNode(last)) {
+        // merge adjacent text nodes
+        res[lastIndex] = createTextVNode(last.text + c.text);
+      } else {
+        // default key for nested array children (likely generated by v-for)
+        if (isTrue(children._isVList) &&
+          isDef(c.tag) &&
+          isUndef(c.key) &&
+          isDef(nestedIndex)) {
+          c.key = "__vlist" + nestedIndex + "_" + i + "__";
+        }
+        res.push(c);
+      }
+    }
+  }
+  return res
+}
+
+/*  */
+
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
+
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
+}
+
+function resolveAsyncComponent (
+  factory,
+  baseCtor,
+  context
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  if (isDef(factory.contexts)) {
+    // already pending
+    factory.contexts.push(context);
+  } else {
+    var contexts = factory.contexts = [context];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = contexts.length; i < l; i++) {
+        contexts[i].$forceUpdate();
+      }
+
+      if (renderCompleted) {
+        contexts.length = 0;
+      }
+    };
+
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        contexts.length = 0;
+      }
+    });
+
+    var reject = once(function (reason) {
+      warn(
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
+      );
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
+  }
+}
+
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
+
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
+      }
+    }
+  }
+}
+
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
+  }
+}
+
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
+    }
+  }
+}
+
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
+}
+
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    var vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
+      }
+    }
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    var vm = this;
+    {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
+      }
+    }
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
+    }
+    return vm
+  };
+}
+
+/*  */
+
+
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  var slots = {};
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
+  }
+  return slots
+}
+
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
+) {
+  res = res || { $stable: !hasDynamicKeys };
+  for (var i = 0; i < fns.length; i++) {
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else {
+      res[slot.key] = slot.fn;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var activeInstance = null;
+var isUpdatingChildComponent = false;
+
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
+  }
+}
+
+function initLifecycle (vm) {
+  var options = vm.$options;
+
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
+    }
+    parent.$children.push(vm);
+  }
+
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
+
+  vm.$children = [];
+  vm.$refs = {};
+
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
+}
+
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
+
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
+
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
+    }
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
+}
+
+function mountComponent (
+  vm,
+  el,
+  hydrating
+) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
+        warn(
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
+        );
+      }
+    }
+  }
+  callHook(vm, 'beforeMount');
+
+  var updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
+
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
+
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
+
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
+
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
+  }
+  return vm
+}
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+  {
+    isUpdatingChildComponent = true;
+  }
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
+}
+
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
+
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
+  }
+}
+
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
+
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  var info = hook + " hook";
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
+}
+
+/*  */
+
+var MAX_UPDATE_COUNT = 100;
+
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
+  }
+  waiting = flushing = false;
+}
+
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
+
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res ( relative to poge load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
+
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
+    }
+  }
+
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
+
+  resetSchedulerState();
+
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
+
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
+    }
+  }
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
+
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
+
+/*  */
+
+
+
+var uid$1 = 0;
+
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$1; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
+    }
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
+
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
+  }
+  return value
+};
+
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
+  }
+};
+
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
+    }
+  }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
+
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
+  }
+};
+
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
+    }
+  }
+};
+
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
+
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
+  }
+};
+
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
+    }
+    this.active = false;
+  }
+};
+
+/*  */
+
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
+
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
+  }
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
+    {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      warn(
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
+    }
+  }
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
+  }
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
+      );
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
+      );
+    }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
+  } else {
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
+  }
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
+    }
+  }
+}
+
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
+  }
+}
+
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
+
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
+
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
+  }
+  return vm.$watch(expOrFn, handler, options)
+}
+
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
+
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
+
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
+    var vm = this;
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
+    }
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      }
+    }
+    return function unwatchFn () {
+      watcher.teardown();
+    }
+  };
+}
+
+/*  */
+
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
+  }
+}
+
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
+      }
+    });
+    toggleObserving(true);
+  }
+}
+
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
+
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
+        }
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
+        }
+      }
+    }
+    return result
+  }
+}
+
+/*  */
+
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
+  }
+  res._normalized = true;
+  res.$stable = slots && slots.$stable;
+  return res
+}
+
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
+
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
+) {
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
+    }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
+      }
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
+    }
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
+) {
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
+    }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
+
+/*  */
+
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
+
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
+
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
+
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
+
+      for (var key in value) loop( key );
+    }
+  }
+  return data
+}
+
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
+  } else {
+    markStaticNode(tree, key, isOnce);
+  }
+}
+
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
+  }
+  return data
+}
+
+/*  */
+
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
+}
+
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
+  }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
+
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
+
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
+
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
+  }
+
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+  }
+}
+
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    }
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
+  }
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
+  }
+}
+
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
+  }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
+}
+
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
+  }
+}
+
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
+
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
+
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
+
+var hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
+
+  data = data || {};
+
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
+
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
+
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
+    }
+  }
+
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
+
+  return vnode
+}
+
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
+  }
+  return new vnode.componentOptions.Ctor(options)
+}
+
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+    }
+  }
+}
+
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
+    }
+  } else {
+    on[event] = callback;
+  }
+}
+
+/*  */
+
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
+
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
+
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
+
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
+}
+
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
+  }
+}
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    }
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
+
+/*  */
+
+var uid$3 = 0;
+
+function initMixin (Vue) {
+  Vue.prototype._init = function (options) {
+    var vm = this;
+    // a uid
+    vm._uid = uid$3++;
+
+    var startTag, endTag;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      startTag = "vue-perf-start:" + (vm._uid);
+      endTag = "vue-perf-end:" + (vm._uid);
+      mark(startTag);
+    }
+
+    // a flag to avoid this being observed
+    vm._isVue = true;
+    // merge options
+    if (options && options._isComponent) {
+      // optimize internal component instantiation
+      // since dynamic options merging is pretty slow, and none of the
+      // internal component options needs special treatment.
+      initInternalComponent(vm, options);
+    } else {
+      vm.$options = mergeOptions(
+        resolveConstructorOptions(vm.constructor),
+        options || {},
+        vm
+      );
+    }
+    /* istanbul ignore else */
+    {
+      initProxy(vm);
+    }
+    // expose real self
+    vm._self = vm;
+    initLifecycle(vm);
+    initEvents(vm);
+    initRender(vm);
+    callHook(vm, 'beforeCreate');
+    initInjections(vm); // resolve injections before data/props
+    initState(vm);
+    initProvide(vm); // resolve provide after data/props
+    callHook(vm, 'created');
+
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      vm._name = formatComponentName(vm, false);
+      mark(endTag);
+      measure(("vue " + (vm._name) + " init"), startTag, endTag);
+    }
+
+    if (vm.$options.el) {
+      vm.$mount(vm.$options.el);
+    }
+  };
+}
+
+function initInternalComponent (vm, options) {
+  var opts = vm.$options = Object.create(vm.constructor.options);
+  // doing this because it's faster than dynamic enumeration.
+  var parentVnode = options._parentVnode;
+  opts.parent = options.parent;
+  opts._parentVnode = parentVnode;
+
+  var vnodeComponentOptions = parentVnode.componentOptions;
+  opts.propsData = vnodeComponentOptions.propsData;
+  opts._parentListeners = vnodeComponentOptions.listeners;
+  opts._renderChildren = vnodeComponentOptions.children;
+  opts._componentTag = vnodeComponentOptions.tag;
+
+  if (options.render) {
+    opts.render = options.render;
+    opts.staticRenderFns = options.staticRenderFns;
+  }
+}
+
+function resolveConstructorOptions (Ctor) {
+  var options = Ctor.options;
+  if (Ctor.super) {
+    var superOptions = resolveConstructorOptions(Ctor.super);
+    var cachedSuperOptions = Ctor.superOptions;
+    if (superOptions !== cachedSuperOptions) {
+      // super option changed,
+      // need to resolve new options.
+      Ctor.superOptions = superOptions;
+      // check if there are any late-modified/attached options (#4976)
+      var modifiedOptions = resolveModifiedOptions(Ctor);
+      // update base extend options
+      if (modifiedOptions) {
+        extend(Ctor.extendOptions, modifiedOptions);
+      }
+      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
+      if (options.name) {
+        options.components[options.name] = Ctor;
+      }
+    }
+  }
+  return options
+}
+
+function resolveModifiedOptions (Ctor) {
+  var modified;
+  var latest = Ctor.options;
+  var sealed = Ctor.sealedOptions;
+  for (var key in latest) {
+    if (latest[key] !== sealed[key]) {
+      if (!modified) { modified = {}; }
+      modified[key] = latest[key];
+    }
+  }
+  return modified
+}
+
+function Vue (options) {
+  if (!(this instanceof Vue)
+  ) {
+    warn('Vue is a constructor and should be called with the `new` keyword');
+  }
+  this._init(options);
+}
+
+initMixin(Vue);
+stateMixin(Vue);
+eventsMixin(Vue);
+lifecycleMixin(Vue);
+renderMixin(Vue);
+
+/*  */
+
+function initUse (Vue) {
+  Vue.use = function (plugin) {
+    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));
+    if (installedPlugins.indexOf(plugin) > -1) {
+      return this
+    }
+
+    // additional parameters
+    var args = toArray(arguments, 1);
+    args.unshift(this);
+    if (typeof plugin.install === 'function') {
+      plugin.install.apply(plugin, args);
+    } else if (typeof plugin === 'function') {
+      plugin.apply(null, args);
+    }
+    installedPlugins.push(plugin);
+    return this
+  };
+}
+
+/*  */
+
+function initMixin$1 (Vue) {
+  Vue.mixin = function (mixin) {
+    this.options = mergeOptions(this.options, mixin);
+    return this
+  };
+}
+
+/*  */
+
+function initExtend (Vue) {
+  /**
+   * Each instance constructor, including Vue, has a unique
+   * cid. This enables us to create wrapped "child
+   * constructors" for prototypal inheritance and cache them.
+   */
+  Vue.cid = 0;
+  var cid = 1;
+
+  /**
+   * Class inheritance
+   */
+  Vue.extend = function (extendOptions) {
+    extendOptions = extendOptions || {};
+    var Super = this;
+    var SuperId = Super.cid;
+    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
+    if (cachedCtors[SuperId]) {
+      return cachedCtors[SuperId]
+    }
+
+    var name = extendOptions.name || Super.options.name;
+    if (name) {
+      validateComponentName(name);
+    }
+
+    var Sub = function VueComponent (options) {
+      this._init(options);
+    };
+    Sub.prototype = Object.create(Super.prototype);
+    Sub.prototype.constructor = Sub;
+    Sub.cid = cid++;
+    Sub.options = mergeOptions(
+      Super.options,
+      extendOptions
+    );
+    Sub['super'] = Super;
+
+    // For props and computed properties, we define the proxy getters on
+    // the Vue instances at extension time, on the extended prototype. This
+    // avoids Object.defineProperty calls for each instance created.
+    if (Sub.options.props) {
+      initProps$1(Sub);
+    }
+    if (Sub.options.computed) {
+      initComputed$1(Sub);
+    }
+
+    // allow further extension/mixin/plugin usage
+    Sub.extend = Super.extend;
+    Sub.mixin = Super.mixin;
+    Sub.use = Super.use;
+
+    // create asset registers, so extended classes
+    // can have their private assets too.
+    ASSET_TYPES.forEach(function (type) {
+      Sub[type] = Super[type];
+    });
+    // enable recursive self-lookup
+    if (name) {
+      Sub.options.components[name] = Sub;
+    }
+
+    // keep a reference to the super options at extension time.
+    // later at instantiation we can check if Super's options have
+    // been updated.
+    Sub.superOptions = Super.options;
+    Sub.extendOptions = extendOptions;
+    Sub.sealedOptions = extend({}, Sub.options);
+
+    // cache constructor
+    cachedCtors[SuperId] = Sub;
+    return Sub
+  };
+}
+
+function initProps$1 (Comp) {
+  var props = Comp.options.props;
+  for (var key in props) {
+    proxy(Comp.prototype, "_props", key);
+  }
+}
+
+function initComputed$1 (Comp) {
+  var computed = Comp.options.computed;
+  for (var key in computed) {
+    defineComputed(Comp.prototype, key, computed[key]);
+  }
+}
+
+/*  */
+
+function initAssetRegisters (Vue) {
+  /**
+   * Create asset registration methods.
+   */
+  ASSET_TYPES.forEach(function (type) {
+    Vue[type] = function (
+      id,
+      definition
+    ) {
+      if (!definition) {
+        return this.options[type + 's'][id]
+      } else {
+        /* istanbul ignore if */
+        if (type === 'component') {
+          validateComponentName(id);
+        }
+        if (type === 'component' && isPlainObject(definition)) {
+          definition.name = definition.name || id;
+          definition = this.options._base.extend(definition);
+        }
+        if (type === 'directive' && typeof definition === 'function') {
+          definition = { bind: definition, update: definition };
+        }
+        this.options[type + 's'][id] = definition;
+        return definition
+      }
+    };
+  });
+}
+
+/*  */
+
+
+
+function getComponentName (opts) {
+  return opts && (opts.Ctor.options.name || opts.tag)
+}
+
+function matches (pattern, name) {
+  if (Array.isArray(pattern)) {
+    return pattern.indexOf(name) > -1
+  } else if (typeof pattern === 'string') {
+    return pattern.split(',').indexOf(name) > -1
+  } else if (isRegExp(pattern)) {
+    return pattern.test(name)
+  }
+  /* istanbul ignore next */
+  return false
+}
+
+function pruneCache (keepAliveInstance, filter) {
+  var cache = keepAliveInstance.cache;
+  var keys = keepAliveInstance.keys;
+  var _vnode = keepAliveInstance._vnode;
+  for (var key in cache) {
+    var cachedNode = cache[key];
+    if (cachedNode) {
+      var name = getComponentName(cachedNode.componentOptions);
+      if (name && !filter(name)) {
+        pruneCacheEntry(cache, key, keys, _vnode);
+      }
+    }
+  }
+}
+
+function pruneCacheEntry (
+  cache,
+  key,
+  keys,
+  current
+) {
+  var cached$$1 = cache[key];
+  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {
+    cached$$1.componentInstance.$destroy();
+  }
+  cache[key] = null;
+  remove(keys, key);
+}
+
+var patternTypes = [String, RegExp, Array];
+
+var KeepAlive = {
+  name: 'keep-alive',
+  abstract: true,
+
+  props: {
+    include: patternTypes,
+    exclude: patternTypes,
+    max: [String, Number]
+  },
+
+  created: function created () {
+    this.cache = Object.create(null);
+    this.keys = [];
+  },
+
+  destroyed: function destroyed () {
+    for (var key in this.cache) {
+      pruneCacheEntry(this.cache, key, this.keys);
+    }
+  },
+
+  mounted: function mounted () {
+    var this$1 = this;
+
+    this.$watch('include', function (val) {
+      pruneCache(this$1, function (name) { return matches(val, name); });
+    });
+    this.$watch('exclude', function (val) {
+      pruneCache(this$1, function (name) { return !matches(val, name); });
+    });
+  },
+
+  render: function render () {
+    var slot = this.$slots.default;
+    var vnode = getFirstComponentChild(slot);
+    var componentOptions = vnode && vnode.componentOptions;
+    if (componentOptions) {
+      // check pattern
+      var name = getComponentName(componentOptions);
+      var ref = this;
+      var include = ref.include;
+      var exclude = ref.exclude;
+      if (
+        // not included
+        (include && (!name || !matches(include, name))) ||
+        // excluded
+        (exclude && name && matches(exclude, name))
+      ) {
+        return vnode
+      }
+
+      var ref$1 = this;
+      var cache = ref$1.cache;
+      var keys = ref$1.keys;
+      var key = vnode.key == null
+        // same constructor may get registered as different local components
+        // so cid alone is not enough (#3269)
+        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
+        : vnode.key;
+      if (cache[key]) {
+        vnode.componentInstance = cache[key].componentInstance;
+        // make current key freshest
+        remove(keys, key);
+        keys.push(key);
+      } else {
+        cache[key] = vnode;
+        keys.push(key);
+        // prune oldest entry
+        if (this.max && keys.length > parseInt(this.max)) {
+          pruneCacheEntry(cache, keys[0], keys, this._vnode);
+        }
+      }
+
+      vnode.data.keepAlive = true;
+    }
+    return vnode || (slot && slot[0])
+  }
+};
+
+var builtInComponents = {
+  KeepAlive: KeepAlive
+};
+
+/*  */
+
+function initGlobalAPI (Vue) {
+  // config
+  var configDef = {};
+  configDef.get = function () { return config; };
+  {
+    configDef.set = function () {
+      warn(
+        'Do not replace the Vue.config object, set individual fields instead.'
+      );
+    };
+  }
+  Object.defineProperty(Vue, 'config', configDef);
+
+  // exposed util methods.
+  // NOTE: these are not considered part of the public API - avoid relying on
+  // them unless you are aware of the risk.
+  Vue.util = {
+    warn: warn,
+    extend: extend,
+    mergeOptions: mergeOptions,
+    defineReactive: defineReactive$$1
+  };
+
+  Vue.set = set;
+  Vue.delete = del;
+  Vue.nextTick = nextTick;
+
+  // 2.6 explicit observable API
+  Vue.observable = function (obj) {
+    observe(obj);
+    return obj
+  };
+
+  Vue.options = Object.create(null);
+  ASSET_TYPES.forEach(function (type) {
+    Vue.options[type + 's'] = Object.create(null);
+  });
+
+  // this is used to identify the "base" constructor to extend all plain-object
+  // components with in Weex's multi-instance scenarios.
+  Vue.options._base = Vue;
+
+  extend(Vue.options.components, builtInComponents);
+
+  initUse(Vue);
+  initMixin$1(Vue);
+  initExtend(Vue);
+  initAssetRegisters(Vue);
+}
+
+initGlobalAPI(Vue);
+
+Object.defineProperty(Vue.prototype, '$isServer', {
+  get: isServerRendering
+});
+
+Object.defineProperty(Vue.prototype, '$ssrContext', {
+  get: function get () {
+    /* istanbul ignore next */
+    return this.$vnode && this.$vnode.ssrContext
+  }
+});
+
+// expose FunctionalRenderContext for ssr runtime helper installation
+Object.defineProperty(Vue, 'FunctionalRenderContext', {
+  value: FunctionalRenderContext
+});
+
+Vue.version = '2.6.0-beta.2';
+
+/*  */
+
+// these are reserved for web because they are directly compiled away
+// during template compilation
+var isReservedAttr = makeMap('style,class');
+
+// attributes that should be using props for binding
+var acceptValue = makeMap('input,textarea,option,select,progress');
+var mustUseProp = function (tag, type, attr) {
+  return (
+    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
+    (attr === 'selected' && tag === 'option') ||
+    (attr === 'checked' && tag === 'input') ||
+    (attr === 'muted' && tag === 'video')
+  )
+};
+
+var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
+
+var isBooleanAttr = makeMap(
+  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
+  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
+  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
+  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
+  'required,reversed,scoped,seamless,selected,sortable,translate,' +
+  'truespeed,typemustmatch,visible'
+);
+
+var xlinkNS = 'http://www.w3.org/1999/xlink';
+
+var isXlink = function (name) {
+  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
+};
+
+var getXlinkProp = function (name) {
+  return isXlink(name) ? name.slice(6, name.length) : ''
+};
+
+var isFalsyAttrValue = function (val) {
+  return val == null || val === false
+};
+
+/*  */
+
+function genClassForVnode (vnode) {
+  var data = vnode.data;
+  var parentNode = vnode;
+  var childNode = vnode;
+  while (isDef(childNode.componentInstance)) {
+    childNode = childNode.componentInstance._vnode;
+    if (childNode && childNode.data) {
+      data = mergeClassData(childNode.data, data);
+    }
+  }
+  while (isDef(parentNode = parentNode.parent)) {
+    if (parentNode && parentNode.data) {
+      data = mergeClassData(data, parentNode.data);
+    }
+  }
+  return renderClass(data.staticClass, data.class)
+}
+
+function mergeClassData (child, parent) {
+  return {
+    staticClass: concat(child.staticClass, parent.staticClass),
+    class: isDef(child.class)
+      ? [child.class, parent.class]
+      : parent.class
+  }
+}
+
+function renderClass (
+  staticClass,
+  dynamicClass
+) {
+  if (isDef(staticClass) || isDef(dynamicClass)) {
+    return concat(staticClass, stringifyClass(dynamicClass))
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function concat (a, b) {
+  return a ? b ? (a + ' ' + b) : a : (b || '')
+}
+
+function stringifyClass (value) {
+  if (Array.isArray(value)) {
+    return stringifyArray(value)
+  }
+  if (isObject(value)) {
+    return stringifyObject(value)
+  }
+  if (typeof value === 'string') {
+    return value
+  }
+  /* istanbul ignore next */
+  return ''
+}
+
+function stringifyArray (value) {
+  var res = '';
+  var stringified;
+  for (var i = 0, l = value.length; i < l; i++) {
+    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {
+      if (res) { res += ' '; }
+      res += stringified;
+    }
+  }
+  return res
+}
+
+function stringifyObject (value) {
+  var res = '';
+  for (var key in value) {
+    if (value[key]) {
+      if (res) { res += ' '; }
+      res += key;
+    }
+  }
+  return res
+}
+
+/*  */
+
+var namespaceMap = {
+  svg: 'http://www.w3.org/2000/svg',
+  math: 'http://www.w3.org/1998/Math/MathML'
+};
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
+  'embed,object,param,source,canvas,script,noscript,del,ins,' +
+  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
+  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+  'output,progress,select,textarea,' +
+  'details,dialog,menu,menuitem,summary,' +
+  'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+var isReservedTag = function (tag) {
+  return isHTMLTag(tag) || isSVG(tag)
+};
+
+function getTagNamespace (tag) {
+  if (isSVG(tag)) {
+    return 'svg'
+  }
+  // basic support for MathML
+  // note it doesn't support other MathML elements being component roots
+  if (tag === 'math') {
+    return 'math'
+  }
+}
+
+var unknownElementCache = Object.create(null);
+function isUnknownElement (tag) {
+  /* istanbul ignore if */
+  if (!inBrowser) {
+    return true
+  }
+  if (isReservedTag(tag)) {
+    return false
+  }
+  tag = tag.toLowerCase();
+  /* istanbul ignore if */
+  if (unknownElementCache[tag] != null) {
+    return unknownElementCache[tag]
+  }
+  var el = document.createElement(tag);
+  if (tag.indexOf('-') > -1) {
+    // http://stackoverflow.com/a/28210364/1070244
+    return (unknownElementCache[tag] = (
+      el.constructor === window.HTMLUnknownElement ||
+      el.constructor === window.HTMLElement
+    ))
+  } else {
+    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
+  }
+}
+
+var isTextInputType = makeMap('text,number,password,search,email,tel,url');
+
+/*  */
+
+/**
+ * Query an element selector if it's not an element already.
+ */
+function query (el) {
+  if (typeof el === 'string') {
+    var selected = document.querySelector(el);
+    if (!selected) {
+      warn(
+        'Cannot find element: ' + el
+      );
+      return document.createElement('div')
+    }
+    return selected
+  } else {
+    return el
+  }
+}
+
+/*  */
+
+function createElement$1 (tagName, vnode) {
+  var elm = document.createElement(tagName);
+  if (tagName !== 'select') {
+    return elm
+  }
+  // false or null will remove the attribute but undefined will not
+  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
+    elm.setAttribute('multiple', 'multiple');
+  }
+  return elm
+}
+
+function createElementNS (namespace, tagName) {
+  return document.createElementNS(namespaceMap[namespace], tagName)
+}
+
+function createTextNode (text) {
+  return document.createTextNode(text)
+}
+
+function createComment (text) {
+  return document.createComment(text)
+}
+
+function insertBefore (parentNode, newNode, referenceNode) {
+  parentNode.insertBefore(newNode, referenceNode);
+}
+
+function removeChild (node, child) {
+  node.removeChild(child);
+}
+
+function appendChild (node, child) {
+  node.appendChild(child);
+}
+
+function parentNode (node) {
+  return node.parentNode
+}
+
+function nextSibling (node) {
+  return node.nextSibling
+}
+
+function tagName (node) {
+  return node.tagName
+}
+
+function setTextContent (node, text) {
+  node.textContent = text;
+}
+
+function setStyleScope (node, scopeId) {
+  node.setAttribute(scopeId, '');
+}
+
+var nodeOps = /*#__PURE__*/Object.freeze({
+  createElement: createElement$1,
+  createElementNS: createElementNS,
+  createTextNode: createTextNode,
+  createComment: createComment,
+  insertBefore: insertBefore,
+  removeChild: removeChild,
+  appendChild: appendChild,
+  parentNode: parentNode,
+  nextSibling: nextSibling,
+  tagName: tagName,
+  setTextContent: setTextContent,
+  setStyleScope: setStyleScope
+});
+
+/*  */
+
+var ref = {
+  create: function create (_, vnode) {
+    registerRef(vnode);
+  },
+  update: function update (oldVnode, vnode) {
+    if (oldVnode.data.ref !== vnode.data.ref) {
+      registerRef(oldVnode, true);
+      registerRef(vnode);
+    }
+  },
+  destroy: function destroy (vnode) {
+    registerRef(vnode, true);
+  }
+};
+
+function registerRef (vnode, isRemoval) {
+  var key = vnode.data.ref;
+  if (!isDef(key)) { return }
+
+  var vm = vnode.context;
+  var ref = vnode.componentInstance || vnode.elm;
+  var refs = vm.$refs;
+  if (isRemoval) {
+    if (Array.isArray(refs[key])) {
+      remove(refs[key], ref);
+    } else if (refs[key] === ref) {
+      refs[key] = undefined;
+    }
+  } else {
+    if (vnode.data.refInFor) {
+      if (!Array.isArray(refs[key])) {
+        refs[key] = [ref];
+      } else if (refs[key].indexOf(ref) < 0) {
+        // $flow-disable-line
+        refs[key].push(ref);
+      }
+    } else {
+      refs[key] = ref;
+    }
+  }
+}
+
+/**
+ * Virtual DOM patching algorithm based on Snabbdom by
+ * Simon Friis Vindum (@paldepind)
+ * Licensed under the MIT License
+ * https://github.com/paldepind/snabbdom/blob/master/LICENSE
+ *
+ * modified by Evan You (@yyx990803)
+ *
+ * Not type-checking this because this file is perf-critical and the cost
+ * of making flow understand it is not worth it.
+ */
+
+var emptyNode = new VNode('', {}, []);
+
+var hooks = ['create', 'activate', 'update', 'remove', 'destroy'];
+
+function sameVnode (a, b) {
+  return (
+    a.key === b.key && (
+      (
+        a.tag === b.tag &&
+        a.isComment === b.isComment &&
+        isDef(a.data) === isDef(b.data) &&
+        sameInputType(a, b)
+      ) || (
+        isTrue(a.isAsyncPlaceholder) &&
+        a.asyncFactory === b.asyncFactory &&
+        isUndef(b.asyncFactory.error)
+      )
+    )
+  )
+}
+
+function sameInputType (a, b) {
+  if (a.tag !== 'input') { return true }
+  var i;
+  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;
+  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;
+  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)
+}
+
+function createKeyToOldIdx (children, beginIdx, endIdx) {
+  var i, key;
+  var map = {};
+  for (i = beginIdx; i <= endIdx; ++i) {
+    key = children[i].key;
+    if (isDef(key)) { map[key] = i; }
+  }
+  return map
+}
+
+function createPatchFunction (backend) {
+  var i, j;
+  var cbs = {};
+
+  var modules = backend.modules;
+  var nodeOps = backend.nodeOps;
+
+  for (i = 0; i < hooks.length; ++i) {
+    cbs[hooks[i]] = [];
+    for (j = 0; j < modules.length; ++j) {
+      if (isDef(modules[j][hooks[i]])) {
+        cbs[hooks[i]].push(modules[j][hooks[i]]);
+      }
+    }
+  }
+
+  function emptyNodeAt (elm) {
+    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
+  }
+
+  function createRmCb (childElm, listeners) {
+    function remove$$1 () {
+      if (--remove$$1.listeners === 0) {
+        removeNode(childElm);
+      }
+    }
+    remove$$1.listeners = listeners;
+    return remove$$1
+  }
+
+  function removeNode (el) {
+    var parent = nodeOps.parentNode(el);
+    // element may have already been removed due to v-html / v-text
+    if (isDef(parent)) {
+      nodeOps.removeChild(parent, el);
+    }
+  }
+
+  function isUnknownElement$$1 (vnode, inVPre) {
+    return (
+      !inVPre &&
+      !vnode.ns &&
+      !(
+        config.ignoredElements.length &&
+        config.ignoredElements.some(function (ignore) {
+          return isRegExp(ignore)
+            ? ignore.test(vnode.tag)
+            : ignore === vnode.tag
+        })
+      ) &&
+      config.isUnknownElement(vnode.tag)
+    )
+  }
+
+  var creatingElmInVPre = 0;
+
+  function createElm (
+    vnode,
+    insertedVnodeQueue,
+    parentElm,
+    refElm,
+    nested,
+    ownerArray,
+    index
+  ) {
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // This vnode was used in a previous render!
+      // now it's used as a new node, overwriting its elm would cause
+      // potential patch errors down the road when it's used as an insertion
+      // reference node. Instead, we clone the node on-demand before creating
+      // associated DOM element for it.
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    vnode.isRootInsert = !nested; // for transition enter check
+    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
+      return
+    }
+
+    var data = vnode.data;
+    var children = vnode.children;
+    var tag = vnode.tag;
+    if (isDef(tag)) {
+      {
+        if (data && data.pre) {
+          creatingElmInVPre++;
+        }
+        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {
+          warn(
+            'Unknown custom element: <' + tag + '> - did you ' +
+            'register the component correctly? For recursive components, ' +
+            'make sure to provide the "name" option.',
+            vnode.context
+          );
+        }
+      }
+
+      vnode.elm = vnode.ns
+        ? nodeOps.createElementNS(vnode.ns, tag)
+        : nodeOps.createElement(tag, vnode);
+      setScope(vnode);
+
+      /* istanbul ignore if */
+      {
+        createChildren(vnode, children, insertedVnodeQueue);
+        if (isDef(data)) {
+          invokeCreateHooks(vnode, insertedVnodeQueue);
+        }
+        insert(parentElm, vnode.elm, refElm);
+      }
+
+      if (data && data.pre) {
+        creatingElmInVPre--;
+      }
+    } else if (isTrue(vnode.isComment)) {
+      vnode.elm = nodeOps.createComment(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    } else {
+      vnode.elm = nodeOps.createTextNode(vnode.text);
+      insert(parentElm, vnode.elm, refElm);
+    }
+  }
+
+  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i = vnode.data;
+    if (isDef(i)) {
+      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
+      if (isDef(i = i.hook) && isDef(i = i.init)) {
+        i(vnode, false /* hydrating */);
+      }
+      // after calling the init hook, if the vnode is a child component
+      // it should've created a child instance and mounted it. the child
+      // component also has set the placeholder vnode's elm.
+      // in that case we can just return the element and be done.
+      if (isDef(vnode.componentInstance)) {
+        initComponent(vnode, insertedVnodeQueue);
+        insert(parentElm, vnode.elm, refElm);
+        if (isTrue(isReactivated)) {
+          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
+        }
+        return true
+      }
+    }
+  }
+
+  function initComponent (vnode, insertedVnodeQueue) {
+    if (isDef(vnode.data.pendingInsert)) {
+      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
+      vnode.data.pendingInsert = null;
+    }
+    vnode.elm = vnode.componentInstance.$el;
+    if (isPatchable(vnode)) {
+      invokeCreateHooks(vnode, insertedVnodeQueue);
+      setScope(vnode);
+    } else {
+      // empty component root.
+      // skip all element-related modules except for ref (#3455)
+      registerRef(vnode);
+      // make sure to invoke the insert hook
+      insertedVnodeQueue.push(vnode);
+    }
+  }
+
+  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
+    var i;
+    // hack for #4339: a reactivated component with inner transition
+    // does not trigger because the inner node's created hooks are not called
+    // again. It's not ideal to involve module-specific logic in here but
+    // there doesn't seem to be a better way to do it.
+    var innerNode = vnode;
+    while (innerNode.componentInstance) {
+      innerNode = innerNode.componentInstance._vnode;
+      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
+        for (i = 0; i < cbs.activate.length; ++i) {
+          cbs.activate[i](emptyNode, innerNode);
+        }
+        insertedVnodeQueue.push(innerNode);
+        break
+      }
+    }
+    // unlike a newly created component,
+    // a reactivated keep-alive component doesn't insert itself
+    insert(parentElm, vnode.elm, refElm);
+  }
+
+  function insert (parent, elm, ref$$1) {
+    if (isDef(parent)) {
+      if (isDef(ref$$1)) {
+        if (nodeOps.parentNode(ref$$1) === parent) {
+          nodeOps.insertBefore(parent, elm, ref$$1);
+        }
+      } else {
+        nodeOps.appendChild(parent, elm);
+      }
+    }
+  }
+
+  function createChildren (vnode, children, insertedVnodeQueue) {
+    if (Array.isArray(children)) {
+      {
+        checkDuplicateKeys(children);
+      }
+      for (var i = 0; i < children.length; ++i) {
+        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);
+      }
+    } else if (isPrimitive(vnode.text)) {
+      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));
+    }
+  }
+
+  function isPatchable (vnode) {
+    while (vnode.componentInstance) {
+      vnode = vnode.componentInstance._vnode;
+    }
+    return isDef(vnode.tag)
+  }
+
+  function invokeCreateHooks (vnode, insertedVnodeQueue) {
+    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+      cbs.create[i$1](emptyNode, vnode);
+    }
+    i = vnode.data.hook; // Reuse variable
+    if (isDef(i)) {
+      if (isDef(i.create)) { i.create(emptyNode, vnode); }
+      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }
+    }
+  }
+
+  // set scope id attribute for scoped CSS.
+  // this is implemented as a special case to avoid the overhead
+  // of going through the normal attribute patching process.
+  function setScope (vnode) {
+    var i;
+    if (isDef(i = vnode.fnScopeId)) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    } else {
+      var ancestor = vnode;
+      while (ancestor) {
+        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
+          nodeOps.setStyleScope(vnode.elm, i);
+        }
+        ancestor = ancestor.parent;
+      }
+    }
+    // for slot content they should also get the scopeId from the host instance.
+    if (isDef(i = activeInstance) &&
+      i !== vnode.context &&
+      i !== vnode.fnContext &&
+      isDef(i = i.$options._scopeId)
+    ) {
+      nodeOps.setStyleScope(vnode.elm, i);
+    }
+  }
+
+  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);
+    }
+  }
+
+  function invokeDestroyHook (vnode) {
+    var i, j;
+    var data = vnode.data;
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
+      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
+    }
+    if (isDef(i = vnode.children)) {
+      for (j = 0; j < vnode.children.length; ++j) {
+        invokeDestroyHook(vnode.children[j]);
+      }
+    }
+  }
+
+  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+    for (; startIdx <= endIdx; ++startIdx) {
+      var ch = vnodes[startIdx];
+      if (isDef(ch)) {
+        if (isDef(ch.tag)) {
+          removeAndInvokeRemoveHook(ch);
+          invokeDestroyHook(ch);
+        } else { // Text node
+          removeNode(ch.elm);
+        }
+      }
+    }
+  }
+
+  function removeAndInvokeRemoveHook (vnode, rm) {
+    if (isDef(rm) || isDef(vnode.data)) {
+      var i;
+      var listeners = cbs.remove.length + 1;
+      if (isDef(rm)) {
+        // we have a recursively passed down rm callback
+        // increase the listeners count
+        rm.listeners += listeners;
+      } else {
+        // directly removing
+        rm = createRmCb(vnode.elm, listeners);
+      }
+      // recursively invoke hooks on child component root node
+      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
+        removeAndInvokeRemoveHook(i, rm);
+      }
+      for (i = 0; i < cbs.remove.length; ++i) {
+        cbs.remove[i](vnode, rm);
+      }
+      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
+        i(vnode, rm);
+      } else {
+        rm();
+      }
+    } else {
+      removeNode(vnode.elm);
+    }
+  }
+
+  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
+    var oldStartIdx = 0;
+    var newStartIdx = 0;
+    var oldEndIdx = oldCh.length - 1;
+    var oldStartVnode = oldCh[0];
+    var oldEndVnode = oldCh[oldEndIdx];
+    var newEndIdx = newCh.length - 1;
+    var newStartVnode = newCh[0];
+    var newEndVnode = newCh[newEndIdx];
+    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;
+
+    // removeOnly is a special flag used only by <transition-group>
+    // to ensure removed elements stay in correct relative positions
+    // during leaving transitions
+    var canMove = !removeOnly;
+
+    {
+      checkDuplicateKeys(newCh);
+    }
+
+    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
+      if (isUndef(oldStartVnode)) {
+        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
+      } else if (isUndef(oldEndVnode)) {
+        oldEndVnode = oldCh[--oldEndIdx];
+      } else if (sameVnode(oldStartVnode, newStartVnode)) {
+        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        oldStartVnode = oldCh[++oldStartIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else if (sameVnode(oldEndVnode, newEndVnode)) {
+        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
+        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
+        oldStartVnode = oldCh[++oldStartIdx];
+        newEndVnode = newCh[--newEndIdx];
+      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
+        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
+        oldEndVnode = oldCh[--oldEndIdx];
+        newStartVnode = newCh[++newStartIdx];
+      } else {
+        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
+        idxInOld = isDef(newStartVnode.key)
+          ? oldKeyToIdx[newStartVnode.key]
+          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);
+        if (isUndef(idxInOld)) { // New element
+          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+        } else {
+          vnodeToMove = oldCh[idxInOld];
+          if (sameVnode(vnodeToMove, newStartVnode)) {
+            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);
+            oldCh[idxInOld] = undefined;
+            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);
+          } else {
+            // same key but different element. treat as new element
+            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);
+          }
+        }
+        newStartVnode = newCh[++newStartIdx];
+      }
+    }
+    if (oldStartIdx > oldEndIdx) {
+      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
+      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
+    } else if (newStartIdx > newEndIdx) {
+      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+    }
+  }
+
+  function checkDuplicateKeys (children) {
+    var seenKeys = {};
+    for (var i = 0; i < children.length; i++) {
+      var vnode = children[i];
+      var key = vnode.key;
+      if (isDef(key)) {
+        if (seenKeys[key]) {
+          warn(
+            ("Duplicate keys detected: '" + key + "'. This may cause an update error."),
+            vnode.context
+          );
+        } else {
+          seenKeys[key] = true;
+        }
+      }
+    }
+  }
+
+  function findIdxInOld (node, oldCh, start, end) {
+    for (var i = start; i < end; i++) {
+      var c = oldCh[i];
+      if (isDef(c) && sameVnode(node, c)) { return i }
+    }
+  }
+
+  function patchVnode (
+    oldVnode,
+    vnode,
+    insertedVnodeQueue,
+    ownerArray,
+    index,
+    removeOnly
+  ) {
+    if (oldVnode === vnode) {
+      return
+    }
+
+    if (isDef(vnode.elm) && isDef(ownerArray)) {
+      // clone reused vnode
+      vnode = ownerArray[index] = cloneVNode(vnode);
+    }
+
+    var elm = vnode.elm = oldVnode.elm;
+
+    if (isTrue(oldVnode.isAsyncPlaceholder)) {
+      if (isDef(vnode.asyncFactory.resolved)) {
+        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);
+      } else {
+        vnode.isAsyncPlaceholder = true;
+      }
+      return
+    }
+
+    // reuse element for static trees.
+    // note we only do this if the vnode is cloned -
+    // if the new node is not cloned it means the render functions have been
+    // reset by the hot-reload-api and we need to do a proper re-render.
+    if (isTrue(vnode.isStatic) &&
+      isTrue(oldVnode.isStatic) &&
+      vnode.key === oldVnode.key &&
+      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))
+    ) {
+      vnode.componentInstance = oldVnode.componentInstance;
+      return
+    }
+
+    var i;
+    var data = vnode.data;
+    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {
+      i(oldVnode, vnode);
+    }
+
+    var oldCh = oldVnode.children;
+    var ch = vnode.children;
+    if (isDef(data) && isPatchable(vnode)) {
+      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
+      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
+    }
+    if (isUndef(vnode.text)) {
+      if (isDef(oldCh) && isDef(ch)) {
+        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
+      } else if (isDef(ch)) {
+        {
+          checkDuplicateKeys(ch);
+        }
+        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
+        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
+      } else if (isDef(oldCh)) {
+        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+      } else if (isDef(oldVnode.text)) {
+        nodeOps.setTextContent(elm, '');
+      }
+    } else if (oldVnode.text !== vnode.text) {
+      nodeOps.setTextContent(elm, vnode.text);
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
+    }
+  }
+
+  function invokeInsertHook (vnode, queue, initial) {
+    // delay insert hooks for component root nodes, invoke them after the
+    // element is really inserted
+    if (isTrue(initial) && isDef(vnode.parent)) {
+      vnode.parent.data.pendingInsert = queue;
+    } else {
+      for (var i = 0; i < queue.length; ++i) {
+        queue[i].data.hook.insert(queue[i]);
+      }
+    }
+  }
+
+  var hydrationBailed = false;
+  // list of modules that can skip create hook during hydration because they
+  // are already rendered on the client or has no need for initialization
+  // Note: style is excluded because it relies on initial clone for future
+  // deep updates (#7063).
+  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');
+
+  // Note: this is a browser-only function so we can assume elms are DOM nodes.
+  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {
+    var i;
+    var tag = vnode.tag;
+    var data = vnode.data;
+    var children = vnode.children;
+    inVPre = inVPre || (data && data.pre);
+    vnode.elm = elm;
+
+    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {
+      vnode.isAsyncPlaceholder = true;
+      return true
+    }
+    // assert node match
+    {
+      if (!assertNodeMatch(elm, vnode, inVPre)) {
+        return false
+      }
+    }
+    if (isDef(data)) {
+      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
+      if (isDef(i = vnode.componentInstance)) {
+        // child component. it should have hydrated its own tree.
+        initComponent(vnode, insertedVnodeQueue);
+        return true
+      }
+    }
+    if (isDef(tag)) {
+      if (isDef(children)) {
+        // empty element, allow client to pick up and populate children
+        if (!elm.hasChildNodes()) {
+          createChildren(vnode, children, insertedVnodeQueue);
+        } else {
+          // v-html and domProps: innerHTML
+          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {
+            if (i !== elm.innerHTML) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('server innerHTML: ', i);
+                console.warn('client innerHTML: ', elm.innerHTML);
+              }
+              return false
+            }
+          } else {
+            // iterate and compare children lists
+            var childrenMatch = true;
+            var childNode = elm.firstChild;
+            for (var i$1 = 0; i$1 < children.length; i$1++) {
+              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {
+                childrenMatch = false;
+                break
+              }
+              childNode = childNode.nextSibling;
+            }
+            // if childNode is not null, it means the actual childNodes list is
+            // longer than the virtual children list.
+            if (!childrenMatch || childNode) {
+              /* istanbul ignore if */
+              if (typeof console !== 'undefined' &&
+                !hydrationBailed
+              ) {
+                hydrationBailed = true;
+                console.warn('Parent: ', elm);
+                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
+              }
+              return false
+            }
+          }
+        }
+      }
+      if (isDef(data)) {
+        var fullInvoke = false;
+        for (var key in data) {
+          if (!isRenderedModule(key)) {
+            fullInvoke = true;
+            invokeCreateHooks(vnode, insertedVnodeQueue);
+            break
+          }
+        }
+        if (!fullInvoke && data['class']) {
+          // ensure collecting deps for deep class bindings for future updates
+          traverse(data['class']);
+        }
+      }
+    } else if (elm.data !== vnode.text) {
+      elm.data = vnode.text;
+    }
+    return true
+  }
+
+  function assertNodeMatch (node, vnode, inVPre) {
+    if (isDef(vnode.tag)) {
+      return vnode.tag.indexOf('vue-component') === 0 || (
+        !isUnknownElement$$1(vnode, inVPre) &&
+        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
+      )
+    } else {
+      return node.nodeType === (vnode.isComment ? 8 : 3)
+    }
+  }
+
+  return function patch (oldVnode, vnode, hydrating, removeOnly) {
+    if (isUndef(vnode)) {
+      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }
+      return
+    }
+
+    var isInitialPatch = false;
+    var insertedVnodeQueue = [];
+
+    if (isUndef(oldVnode)) {
+      // empty mount (likely as component), create new root element
+      isInitialPatch = true;
+      createElm(vnode, insertedVnodeQueue);
+    } else {
+      var isRealElement = isDef(oldVnode.nodeType);
+      if (!isRealElement && sameVnode(oldVnode, vnode)) {
+        // patch existing root node
+        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);
+      } else {
+        if (isRealElement) {
+          // mounting to a real element
+          // check if this is server-rendered content and if we can perform
+          // a successful hydration.
+          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {
+            oldVnode.removeAttribute(SSR_ATTR);
+            hydrating = true;
+          }
+          if (isTrue(hydrating)) {
+            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
+              invokeInsertHook(vnode, insertedVnodeQueue, true);
+              return oldVnode
+            } else {
+              warn(
+                'The client-side rendered virtual DOM tree is not matching ' +
+                'server-rendered content. This is likely caused by incorrect ' +
+                'HTML markup, for example nesting block-level elements inside ' +
+                '<p>, or missing <tbody>. Bailing hydration and performing ' +
+                'full client-side render.'
+              );
+            }
+          }
+          // either not server-rendered, or hydration failed.
+          // create an empty node and replace it
+          oldVnode = emptyNodeAt(oldVnode);
+        }
+
+        // replacing existing element
+        var oldElm = oldVnode.elm;
+        var parentElm = nodeOps.parentNode(oldElm);
+
+        // create new node
+        createElm(
+          vnode,
+          insertedVnodeQueue,
+          // extremely rare edge case: do not insert if old element is in a
+          // leaving transition. Only happens when combining transition +
+          // keep-alive + HOCs. (#4590)
+          oldElm._leaveCb ? null : parentElm,
+          nodeOps.nextSibling(oldElm)
+        );
+
+        // update parent placeholder node element, recursively
+        if (isDef(vnode.parent)) {
+          var ancestor = vnode.parent;
+          var patchable = isPatchable(vnode);
+          while (ancestor) {
+            for (var i = 0; i < cbs.destroy.length; ++i) {
+              cbs.destroy[i](ancestor);
+            }
+            ancestor.elm = vnode.elm;
+            if (patchable) {
+              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
+                cbs.create[i$1](emptyNode, ancestor);
+              }
+              // #6513
+              // invoke insert hooks that may have been merged by create hooks.
+              // e.g. for directives that uses the "inserted" hook.
+              var insert = ancestor.data.hook.insert;
+              if (insert.merged) {
+                // start at index 1 to avoid re-invoking component mounted hook
+                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {
+                  insert.fns[i$2]();
+                }
+              }
+            } else {
+              registerRef(ancestor);
+            }
+            ancestor = ancestor.parent;
+          }
+        }
+
+        // destroy old node
+        if (isDef(parentElm)) {
+          removeVnodes(parentElm, [oldVnode], 0, 0);
+        } else if (isDef(oldVnode.tag)) {
+          invokeDestroyHook(oldVnode);
+        }
+      }
+    }
+
+    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
+    return vnode.elm
+  }
+}
+
+/*  */
+
+var directives = {
+  create: updateDirectives,
+  update: updateDirectives,
+  destroy: function unbindDirectives (vnode) {
+    updateDirectives(vnode, emptyNode);
+  }
+};
+
+function updateDirectives (oldVnode, vnode) {
+  if (oldVnode.data.directives || vnode.data.directives) {
+    _update(oldVnode, vnode);
+  }
+}
+
+function _update (oldVnode, vnode) {
+  var isCreate = oldVnode === emptyNode;
+  var isDestroy = vnode === emptyNode;
+  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
+  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);
+
+  var dirsWithInsert = [];
+  var dirsWithPostpatch = [];
+
+  var key, oldDir, dir;
+  for (key in newDirs) {
+    oldDir = oldDirs[key];
+    dir = newDirs[key];
+    if (!oldDir) {
+      // new directive, bind
+      callHook$1(dir, 'bind', vnode, oldVnode);
+      if (dir.def && dir.def.inserted) {
+        dirsWithInsert.push(dir);
+      }
+    } else {
+      // existing directive, update
+      dir.oldValue = oldDir.value;
+      dir.oldArg = oldDir.arg;
+      callHook$1(dir, 'update', vnode, oldVnode);
+      if (dir.def && dir.def.componentUpdated) {
+        dirsWithPostpatch.push(dir);
+      }
+    }
+  }
+
+  if (dirsWithInsert.length) {
+    var callInsert = function () {
+      for (var i = 0; i < dirsWithInsert.length; i++) {
+        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
+      }
+    };
+    if (isCreate) {
+      mergeVNodeHook(vnode, 'insert', callInsert);
+    } else {
+      callInsert();
+    }
+  }
+
+  if (dirsWithPostpatch.length) {
+    mergeVNodeHook(vnode, 'postpatch', function () {
+      for (var i = 0; i < dirsWithPostpatch.length; i++) {
+        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
+      }
+    });
+  }
+
+  if (!isCreate) {
+    for (key in oldDirs) {
+      if (!newDirs[key]) {
+        // no longer present, unbind
+        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
+      }
+    }
+  }
+}
+
+var emptyModifiers = Object.create(null);
+
+function normalizeDirectives$1 (
+  dirs,
+  vm
+) {
+  var res = Object.create(null);
+  if (!dirs) {
+    // $flow-disable-line
+    return res
+  }
+  var i, dir;
+  for (i = 0; i < dirs.length; i++) {
+    dir = dirs[i];
+    if (!dir.modifiers) {
+      // $flow-disable-line
+      dir.modifiers = emptyModifiers;
+    }
+    res[getRawDirName(dir)] = dir;
+    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
+  }
+  // $flow-disable-line
+  return res
+}
+
+function getRawDirName (dir) {
+  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
+}
+
+function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
+  var fn = dir.def && dir.def[hook];
+  if (fn) {
+    try {
+      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
+    } catch (e) {
+      handleError(e, vnode.context, ("directive " + (dir.name) + " " + hook + " hook"));
+    }
+  }
+}
+
+var baseModules = [
+  ref,
+  directives
+];
+
+/*  */
+
+function updateAttrs (oldVnode, vnode) {
+  var opts = vnode.componentOptions;
+  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {
+    return
+  }
+  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {
+    return
+  }
+  var key, cur, old;
+  var elm = vnode.elm;
+  var oldAttrs = oldVnode.data.attrs || {};
+  var attrs = vnode.data.attrs || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(attrs.__ob__)) {
+    attrs = vnode.data.attrs = extend({}, attrs);
+  }
+
+  for (key in attrs) {
+    cur = attrs[key];
+    old = oldAttrs[key];
+    if (old !== cur) {
+      setAttr(elm, key, cur);
+    }
+  }
+  // #4391: in IE9, setting type can reset value for input[type=radio]
+  // #6666: IE/Edge forces progress value down to 1 before setting a max
+  /* istanbul ignore if */
+  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {
+    setAttr(elm, 'value', attrs.value);
+  }
+  for (key in oldAttrs) {
+    if (isUndef(attrs[key])) {
+      if (isXlink(key)) {
+        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
+      } else if (!isEnumeratedAttr(key)) {
+        elm.removeAttribute(key);
+      }
+    }
+  }
+}
+
+function setAttr (el, key, value) {
+  if (el.tagName.indexOf('-') > -1) {
+    baseSetAttr(el, key, value);
+  } else if (isBooleanAttr(key)) {
+    // set attribute for blank value
+    // e.g. <option disabled>Select one</option>
+    if (isFalsyAttrValue(value)) {
+      el.removeAttribute(key);
+    } else {
+      // technically allowfullscreen is a boolean attribute for <iframe>,
+      // but Flash expects a value of "true" when used on <embed> tag
+      value = key === 'allowfullscreen' && el.tagName === 'EMBED'
+        ? 'true'
+        : key;
+      el.setAttribute(key, value);
+    }
+  } else if (isEnumeratedAttr(key)) {
+    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+  } else if (isXlink(key)) {
+    if (isFalsyAttrValue(value)) {
+      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
+    } else {
+      el.setAttributeNS(xlinkNS, key, value);
+    }
+  } else {
+    baseSetAttr(el, key, value);
+  }
+}
+
+function baseSetAttr (el, key, value) {
+  if (isFalsyAttrValue(value)) {
+    el.removeAttribute(key);
+  } else {
+    // #7138: IE10 & 11 fires input event when setting placeholder on
+    // <textarea>... block the first input event and remove the blocker
+    // immediately.
+    /* istanbul ignore if */
+    if (
+      isIE && !isIE9 &&
+      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
+      key === 'placeholder' && !el.__ieph
+    ) {
+      var blocker = function (e) {
+        e.stopImmediatePropagation();
+        el.removeEventListener('input', blocker);
+      };
+      el.addEventListener('input', blocker);
+      // $flow-disable-line
+      el.__ieph = true; /* IE placeholder patched */
+    }
+    el.setAttribute(key, value);
+  }
+}
+
+var attrs = {
+  create: updateAttrs,
+  update: updateAttrs
+};
+
+/*  */
+
+function updateClass (oldVnode, vnode) {
+  var el = vnode.elm;
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+  if (
+    isUndef(data.staticClass) &&
+    isUndef(data.class) && (
+      isUndef(oldData) || (
+        isUndef(oldData.staticClass) &&
+        isUndef(oldData.class)
+      )
+    )
+  ) {
+    return
+  }
+
+  var cls = genClassForVnode(vnode);
+
+  // handle transition classes
+  var transitionClass = el._transitionClasses;
+  if (isDef(transitionClass)) {
+    cls = concat(cls, stringifyClass(transitionClass));
+  }
+
+  // set the class
+  if (cls !== el._prevClass) {
+    el.setAttribute('class', cls);
+    el._prevClass = cls;
+  }
+}
+
+var klass = {
+  create: updateClass,
+  update: updateClass
+};
+
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// in some cases, the event used has to be determined at runtime
+// so we used some reserved tokens during compile.
+var RANGE_TOKEN = '__r';
+var CHECKBOX_RADIO_TOKEN = '__c';
+
+/*  */
+
+// normalize v-model event tokens that can only be determined at runtime.
+// it's important to place the event as the first in the array because
+// the whole point is ensuring the v-model callback gets called before
+// user-attached handlers.
+function normalizeEvents (on) {
+  /* istanbul ignore if */
+  if (isDef(on[RANGE_TOKEN])) {
+    // IE input[type=range] only supports `change` event
+    var event = isIE ? 'change' : 'input';
+    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
+    delete on[RANGE_TOKEN];
+  }
+  // This was originally intended to fix #4521 but no longer necessary
+  // after 2.5. Keeping it for backwards compat with generated code from < 2.4
+  /* istanbul ignore if */
+  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {
+    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);
+    delete on[CHECKBOX_RADIO_TOKEN];
+  }
+}
+
+var target$1;
+
+function createOnceHandler$1 (event, handler, capture) {
+  var _target = target$1; // save current target element in closure
+  return function onceHandler () {
+    var res = handler.apply(null, arguments);
+    if (res !== null) {
+      remove$2(event, onceHandler, capture, _target);
+    }
+  }
+}
+
+function add$1 (
+  name,
+  handler,
+  capture,
+  passive
+) {
+  // async edge case #6566: inner click event triggers patch, event handler
+  // attached to outer element during patch, and triggered again. This
+  // happens because browsers fire microtask ticks between event propagation.
+  // the solution is simple: we save the timestamp when a handler is attached,
+  // and the handler would only fire if the event passed to it was fired
+  // AFTER it was attached.
+  if (isUsingMicroTask) {
+    var attachedTimestamp = currentFlushTimestamp;
+    var original = handler;
+    handler = original._wrapper = function (e) {
+      if (e.timeStamp >= attachedTimestamp) {
+        return original.apply(this, arguments)
+      }
+    };
+  }
+  target$1.addEventListener(
+    name,
+    handler,
+    supportsPassive
+      ? { capture: capture, passive: passive }
+      : capture
+  );
+}
+
+function remove$2 (
+  name,
+  handler,
+  capture,
+  _target
+) {
+  (_target || target$1).removeEventListener(
+    name,
+    handler._wrapper || handler,
+    capture
+  );
+}
+
+function updateDOMListeners (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {
+    return
+  }
+  var on = vnode.data.on || {};
+  var oldOn = oldVnode.data.on || {};
+  target$1 = vnode.elm;
+  normalizeEvents(on);
+  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);
+  target$1 = undefined;
+}
+
+var events = {
+  create: updateDOMListeners,
+  update: updateDOMListeners
+};
+
+/*  */
+
+var svgContainer;
+
+function updateDOMProps (oldVnode, vnode) {
+  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {
+    return
+  }
+  var key, cur;
+  var elm = vnode.elm;
+  var oldProps = oldVnode.data.domProps || {};
+  var props = vnode.data.domProps || {};
+  // clone observed objects, as the user probably wants to mutate it
+  if (isDef(props.__ob__)) {
+    props = vnode.data.domProps = extend({}, props);
+  }
+
+  for (key in oldProps) {
+    if (isUndef(props[key])) {
+      elm[key] = '';
+    }
+  }
+  for (key in props) {
+    cur = props[key];
+    // ignore children if the node has textContent or innerHTML,
+    // as these will throw away existing DOM nodes and cause removal errors
+    // on subsequent patches (#3360)
+    if (key === 'textContent' || key === 'innerHTML') {
+      if (vnode.children) { vnode.children.length = 0; }
+      if (cur === oldProps[key]) { continue }
+      // #6601 work around Chrome version <= 55 bug where single textNode
+      // replaced by innerHTML/textContent retains its parentNode property
+      if (elm.childNodes.length === 1) {
+        elm.removeChild(elm.childNodes[0]);
+      }
+    }
+
+    // skip the update if old and new VDOM state is the same.
+    // the only exception is `value` where the DOM value may be temporarily
+    // out of sync with VDOM state due to focus, composition and modifiers.
+    // This also covers #4521 by skipping the unnecesarry `checked` update.
+    if (key !== 'value' && cur === oldProps[key]) {
+      continue
+    }
+
+    if (key === 'value') {
+      // store value as _value as well since
+      // non-string values will be stringified
+      elm._value = cur;
+      // avoid resetting cursor position when value is the same
+      var strCur = isUndef(cur) ? '' : String(cur);
+      if (shouldUpdateValue(elm, strCur)) {
+        elm.value = strCur;
+      }
+    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {
+      // IE doesn't support innerHTML for SVG elements
+      svgContainer = svgContainer || document.createElement('div');
+      svgContainer.innerHTML = "<svg>" + cur + "</svg>";
+      var svg = svgContainer.firstChild;
+      while (elm.firstChild) {
+        elm.removeChild(elm.firstChild);
+      }
+      while (svg.firstChild) {
+        elm.appendChild(svg.firstChild);
+      }
+    } else {
+      elm[key] = cur;
+    }
+  }
+}
+
+// check platforms/web/util/attrs.js acceptValue
+
+
+function shouldUpdateValue (elm, checkVal) {
+  return (!elm.composing && (
+    elm.tagName === 'OPTION' ||
+    isNotInFocusAndDirty(elm, checkVal) ||
+    isDirtyWithModifiers(elm, checkVal)
+  ))
+}
+
+function isNotInFocusAndDirty (elm, checkVal) {
+  // return true when textbox (.number and .trim) loses focus and its value is
+  // not equal to the updated value
+  var notInFocus = true;
+  // #6157
+  // work around IE bug when accessing document.activeElement in an iframe
+  try { notInFocus = document.activeElement !== elm; } catch (e) {}
+  return notInFocus && elm.value !== checkVal
+}
+
+function isDirtyWithModifiers (elm, newVal) {
+  var value = elm.value;
+  var modifiers = elm._vModifiers; // injected by v-model runtime
+  if (isDef(modifiers)) {
+    if (modifiers.number) {
+      return toNumber(value) !== toNumber(newVal)
+    }
+    if (modifiers.trim) {
+      return value.trim() !== newVal.trim()
+    }
+  }
+  return value !== newVal
+}
+
+var domProps = {
+  create: updateDOMProps,
+  update: updateDOMProps
+};
+
+/*  */
+
+var parseStyleText = cached(function (cssText) {
+  var res = {};
+  var listDelimiter = /;(?![^(]*\))/g;
+  var propertyDelimiter = /:(.+)/;
+  cssText.split(listDelimiter).forEach(function (item) {
+    if (item) {
+      var tmp = item.split(propertyDelimiter);
+      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
+    }
+  });
+  return res
+});
+
+// merge static and dynamic style data on the same vnode
+function normalizeStyleData (data) {
+  var style = normalizeStyleBinding(data.style);
+  // static style is pre-processed into an object during compilation
+  // and is always a fresh object, so it's safe to merge into it
+  return data.staticStyle
+    ? extend(data.staticStyle, style)
+    : style
+}
+
+// normalize possible array / string values into Object
+function normalizeStyleBinding (bindingStyle) {
+  if (Array.isArray(bindingStyle)) {
+    return toObject(bindingStyle)
+  }
+  if (typeof bindingStyle === 'string') {
+    return parseStyleText(bindingStyle)
+  }
+  return bindingStyle
+}
+
+/**
+ * parent component style should be after child's
+ * so that parent component's style could override it
+ */
+function getStyle (vnode, checkChild) {
+  var res = {};
+  var styleData;
+
+  if (checkChild) {
+    var childNode = vnode;
+    while (childNode.componentInstance) {
+      childNode = childNode.componentInstance._vnode;
+      if (
+        childNode && childNode.data &&
+        (styleData = normalizeStyleData(childNode.data))
+      ) {
+        extend(res, styleData);
+      }
+    }
+  }
+
+  if ((styleData = normalizeStyleData(vnode.data))) {
+    extend(res, styleData);
+  }
+
+  var parentNode = vnode;
+  while ((parentNode = parentNode.parent)) {
+    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
+      extend(res, styleData);
+    }
+  }
+  return res
+}
+
+/*  */
+
+var cssVarRE = /^--/;
+var importantRE = /\s*!important$/;
+var setProp = function (el, name, val) {
+  /* istanbul ignore if */
+  if (cssVarRE.test(name)) {
+    el.style.setProperty(name, val);
+  } else if (importantRE.test(val)) {
+    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+  } else {
+    var normalizedName = normalize(name);
+    if (Array.isArray(val)) {
+      // Support values array created by autoprefixer, e.g.
+      // {display: ["-webkit-box", "-ms-flexbox", "flex"]}
+      // Set them one by one, and the browser will only set those it can recognize
+      for (var i = 0, len = val.length; i < len; i++) {
+        el.style[normalizedName] = val[i];
+      }
+    } else {
+      el.style[normalizedName] = val;
+    }
+  }
+};
+
+var vendorNames = ['Webkit', 'Moz', 'ms'];
+
+var emptyStyle;
+var normalize = cached(function (prop) {
+  emptyStyle = emptyStyle || document.createElement('div').style;
+  prop = camelize(prop);
+  if (prop !== 'filter' && (prop in emptyStyle)) {
+    return prop
+  }
+  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);
+  for (var i = 0; i < vendorNames.length; i++) {
+    var name = vendorNames[i] + capName;
+    if (name in emptyStyle) {
+      return name
+    }
+  }
+});
+
+function updateStyle (oldVnode, vnode) {
+  var data = vnode.data;
+  var oldData = oldVnode.data;
+
+  if (isUndef(data.staticStyle) && isUndef(data.style) &&
+    isUndef(oldData.staticStyle) && isUndef(oldData.style)
+  ) {
+    return
+  }
+
+  var cur, name;
+  var el = vnode.elm;
+  var oldStaticStyle = oldData.staticStyle;
+  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};
+
+  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
+  var oldStyle = oldStaticStyle || oldStyleBinding;
+
+  var style = normalizeStyleBinding(vnode.data.style) || {};
+
+  // store normalized style under a different key for next diff
+  // make sure to clone it if it's reactive, since the user likely wants
+  // to mutate it.
+  vnode.data.normalizedStyle = isDef(style.__ob__)
+    ? extend({}, style)
+    : style;
+
+  var newStyle = getStyle(vnode, true);
+
+  for (name in oldStyle) {
+    if (isUndef(newStyle[name])) {
+      setProp(el, name, '');
+    }
+  }
+  for (name in newStyle) {
+    cur = newStyle[name];
+    if (cur !== oldStyle[name]) {
+      // ie9 setting to null has no effect, must use empty string
+      setProp(el, name, cur == null ? '' : cur);
+    }
+  }
+}
+
+var style = {
+  create: updateStyle,
+  update: updateStyle
+};
+
+/*  */
+
+var whitespaceRE = /\s+/;
+
+/**
+ * Add class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function addClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });
+    } else {
+      el.classList.add(cls);
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    if (cur.indexOf(' ' + cls + ' ') < 0) {
+      el.setAttribute('class', (cur + cls).trim());
+    }
+  }
+}
+
+/**
+ * Remove class with compatibility for SVG since classList is not supported on
+ * SVG elements in IE
+ */
+function removeClass (el, cls) {
+  /* istanbul ignore if */
+  if (!cls || !(cls = cls.trim())) {
+    return
+  }
+
+  /* istanbul ignore else */
+  if (el.classList) {
+    if (cls.indexOf(' ') > -1) {
+      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });
+    } else {
+      el.classList.remove(cls);
+    }
+    if (!el.classList.length) {
+      el.removeAttribute('class');
+    }
+  } else {
+    var cur = " " + (el.getAttribute('class') || '') + " ";
+    var tar = ' ' + cls + ' ';
+    while (cur.indexOf(tar) >= 0) {
+      cur = cur.replace(tar, ' ');
+    }
+    cur = cur.trim();
+    if (cur) {
+      el.setAttribute('class', cur);
+    } else {
+      el.removeAttribute('class');
+    }
+  }
+}
+
+/*  */
+
+function resolveTransition (def$$1) {
+  if (!def$$1) {
+    return
+  }
+  /* istanbul ignore else */
+  if (typeof def$$1 === 'object') {
+    var res = {};
+    if (def$$1.css !== false) {
+      extend(res, autoCssTransition(def$$1.name || 'v'));
+    }
+    extend(res, def$$1);
+    return res
+  } else if (typeof def$$1 === 'string') {
+    return autoCssTransition(def$$1)
+  }
+}
+
+var autoCssTransition = cached(function (name) {
+  return {
+    enterClass: (name + "-enter"),
+    enterToClass: (name + "-enter-to"),
+    enterActiveClass: (name + "-enter-active"),
+    leaveClass: (name + "-leave"),
+    leaveToClass: (name + "-leave-to"),
+    leaveActiveClass: (name + "-leave-active")
+  }
+});
+
+var hasTransition = inBrowser && !isIE9;
+var TRANSITION = 'transition';
+var ANIMATION = 'animation';
+
+// Transition property/event sniffing
+var transitionProp = 'transition';
+var transitionEndEvent = 'transitionend';
+var animationProp = 'animation';
+var animationEndEvent = 'animationend';
+if (hasTransition) {
+  /* istanbul ignore if */
+  if (window.ontransitionend === undefined &&
+    window.onwebkittransitionend !== undefined
+  ) {
+    transitionProp = 'WebkitTransition';
+    transitionEndEvent = 'webkitTransitionEnd';
+  }
+  if (window.onanimationend === undefined &&
+    window.onwebkitanimationend !== undefined
+  ) {
+    animationProp = 'WebkitAnimation';
+    animationEndEvent = 'webkitAnimationEnd';
+  }
+}
+
+// binding to window is necessary to make hot reload work in IE in strict mode
+var raf = inBrowser
+  ? window.requestAnimationFrame
+    ? window.requestAnimationFrame.bind(window)
+    : setTimeout
+  : /* istanbul ignore next */ function (fn) { return fn(); };
+
+function nextFrame (fn) {
+  raf(function () {
+    raf(fn);
+  });
+}
+
+function addTransitionClass (el, cls) {
+  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);
+  if (transitionClasses.indexOf(cls) < 0) {
+    transitionClasses.push(cls);
+    addClass(el, cls);
+  }
+}
+
+function removeTransitionClass (el, cls) {
+  if (el._transitionClasses) {
+    remove(el._transitionClasses, cls);
+  }
+  removeClass(el, cls);
+}
+
+function whenTransitionEnds (
+  el,
+  expectedType,
+  cb
+) {
+  var ref = getTransitionInfo(el, expectedType);
+  var type = ref.type;
+  var timeout = ref.timeout;
+  var propCount = ref.propCount;
+  if (!type) { return cb() }
+  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
+  var ended = 0;
+  var end = function () {
+    el.removeEventListener(event, onEnd);
+    cb();
+  };
+  var onEnd = function (e) {
+    if (e.target === el) {
+      if (++ended >= propCount) {
+        end();
+      }
+    }
+  };
+  setTimeout(function () {
+    if (ended < propCount) {
+      end();
+    }
+  }, timeout + 1);
+  el.addEventListener(event, onEnd);
+}
+
+var transformRE = /\b(transform|all)(,|$)/;
+
+function getTransitionInfo (el, expectedType) {
+  var styles = window.getComputedStyle(el);
+  // JSDOM may return undefined for transition properties
+  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');
+  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');
+  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);
+  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');
+  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');
+  var animationTimeout = getTimeout(animationDelays, animationDurations);
+
+  var type;
+  var timeout = 0;
+  var propCount = 0;
+  /* istanbul ignore if */
+  if (expectedType === TRANSITION) {
+    if (transitionTimeout > 0) {
+      type = TRANSITION;
+      timeout = transitionTimeout;
+      propCount = transitionDurations.length;
+    }
+  } else if (expectedType === ANIMATION) {
+    if (animationTimeout > 0) {
+      type = ANIMATION;
+      timeout = animationTimeout;
+      propCount = animationDurations.length;
+    }
+  } else {
+    timeout = Math.max(transitionTimeout, animationTimeout);
+    type = timeout > 0
+      ? transitionTimeout > animationTimeout
+        ? TRANSITION
+        : ANIMATION
+      : null;
+    propCount = type
+      ? type === TRANSITION
+        ? transitionDurations.length
+        : animationDurations.length
+      : 0;
+  }
+  var hasTransform =
+    type === TRANSITION &&
+    transformRE.test(styles[transitionProp + 'Property']);
+  return {
+    type: type,
+    timeout: timeout,
+    propCount: propCount,
+    hasTransform: hasTransform
+  }
+}
+
+function getTimeout (delays, durations) {
+  /* istanbul ignore next */
+  while (delays.length < durations.length) {
+    delays = delays.concat(delays);
+  }
+
+  return Math.max.apply(null, durations.map(function (d, i) {
+    return toMs(d) + toMs(delays[i])
+  }))
+}
+
+// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers
+// in a locale-dependent way, using a comma instead of a dot.
+// If comma is not replaced with a dot, the input will be rounded down (i.e. acting
+// as a floor function) causing unexpected behaviors
+function toMs (s) {
+  return Number(s.slice(0, -1).replace(',', '.')) * 1000
+}
+
+/*  */
+
+function enter (vnode, toggleDisplay) {
+  var el = vnode.elm;
+
+  // call leave callback now
+  if (isDef(el._leaveCb)) {
+    el._leaveCb.cancelled = true;
+    el._leaveCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data)) {
+    return
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._enterCb) || el.nodeType !== 1) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var enterClass = data.enterClass;
+  var enterToClass = data.enterToClass;
+  var enterActiveClass = data.enterActiveClass;
+  var appearClass = data.appearClass;
+  var appearToClass = data.appearToClass;
+  var appearActiveClass = data.appearActiveClass;
+  var beforeEnter = data.beforeEnter;
+  var enter = data.enter;
+  var afterEnter = data.afterEnter;
+  var enterCancelled = data.enterCancelled;
+  var beforeAppear = data.beforeAppear;
+  var appear = data.appear;
+  var afterAppear = data.afterAppear;
+  var appearCancelled = data.appearCancelled;
+  var duration = data.duration;
+
+  // activeInstance will always be the <transition> component managing this
+  // transition. One edge case to check is when the <transition> is placed
+  // as the root node of a child component. In that case we need to check
+  // <transition>'s parent for appear check.
+  var context = activeInstance;
+  var transitionNode = activeInstance.$vnode;
+  while (transitionNode && transitionNode.parent) {
+    transitionNode = transitionNode.parent;
+    context = transitionNode.context;
+  }
+
+  var isAppear = !context._isMounted || !vnode.isRootInsert;
+
+  if (isAppear && !appear && appear !== '') {
+    return
+  }
+
+  var startClass = isAppear && appearClass
+    ? appearClass
+    : enterClass;
+  var activeClass = isAppear && appearActiveClass
+    ? appearActiveClass
+    : enterActiveClass;
+  var toClass = isAppear && appearToClass
+    ? appearToClass
+    : enterToClass;
+
+  var beforeEnterHook = isAppear
+    ? (beforeAppear || beforeEnter)
+    : beforeEnter;
+  var enterHook = isAppear
+    ? (typeof appear === 'function' ? appear : enter)
+    : enter;
+  var afterEnterHook = isAppear
+    ? (afterAppear || afterEnter)
+    : afterEnter;
+  var enterCancelledHook = isAppear
+    ? (appearCancelled || enterCancelled)
+    : enterCancelled;
+
+  var explicitEnterDuration = toNumber(
+    isObject(duration)
+      ? duration.enter
+      : duration
+  );
+
+  if (explicitEnterDuration != null) {
+    checkDuration(explicitEnterDuration, 'enter', vnode);
+  }
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(enterHook);
+
+  var cb = el._enterCb = once(function () {
+    if (expectsCSS) {
+      removeTransitionClass(el, toClass);
+      removeTransitionClass(el, activeClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, startClass);
+      }
+      enterCancelledHook && enterCancelledHook(el);
+    } else {
+      afterEnterHook && afterEnterHook(el);
+    }
+    el._enterCb = null;
+  });
+
+  if (!vnode.data.show) {
+    // remove pending leave element on enter by injecting an insert hook
+    mergeVNodeHook(vnode, 'insert', function () {
+      var parent = el.parentNode;
+      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
+      if (pendingNode &&
+        pendingNode.tag === vnode.tag &&
+        pendingNode.elm._leaveCb
+      ) {
+        pendingNode.elm._leaveCb();
+      }
+      enterHook && enterHook(el, cb);
+    });
+  }
+
+  // start enter transition
+  beforeEnterHook && beforeEnterHook(el);
+  if (expectsCSS) {
+    addTransitionClass(el, startClass);
+    addTransitionClass(el, activeClass);
+    nextFrame(function () {
+      removeTransitionClass(el, startClass);
+      if (!cb.cancelled) {
+        addTransitionClass(el, toClass);
+        if (!userWantsControl) {
+          if (isValidDuration(explicitEnterDuration)) {
+            setTimeout(cb, explicitEnterDuration);
+          } else {
+            whenTransitionEnds(el, type, cb);
+          }
+        }
+      }
+    });
+  }
+
+  if (vnode.data.show) {
+    toggleDisplay && toggleDisplay();
+    enterHook && enterHook(el, cb);
+  }
+
+  if (!expectsCSS && !userWantsControl) {
+    cb();
+  }
+}
+
+function leave (vnode, rm) {
+  var el = vnode.elm;
+
+  // call enter callback now
+  if (isDef(el._enterCb)) {
+    el._enterCb.cancelled = true;
+    el._enterCb();
+  }
+
+  var data = resolveTransition(vnode.data.transition);
+  if (isUndef(data) || el.nodeType !== 1) {
+    return rm()
+  }
+
+  /* istanbul ignore if */
+  if (isDef(el._leaveCb)) {
+    return
+  }
+
+  var css = data.css;
+  var type = data.type;
+  var leaveClass = data.leaveClass;
+  var leaveToClass = data.leaveToClass;
+  var leaveActiveClass = data.leaveActiveClass;
+  var beforeLeave = data.beforeLeave;
+  var leave = data.leave;
+  var afterLeave = data.afterLeave;
+  var leaveCancelled = data.leaveCancelled;
+  var delayLeave = data.delayLeave;
+  var duration = data.duration;
+
+  var expectsCSS = css !== false && !isIE9;
+  var userWantsControl = getHookArgumentsLength(leave);
+
+  var explicitLeaveDuration = toNumber(
+    isObject(duration)
+      ? duration.leave
+      : duration
+  );
+
+  if (isDef(explicitLeaveDuration)) {
+    checkDuration(explicitLeaveDuration, 'leave', vnode);
+  }
+
+  var cb = el._leaveCb = once(function () {
+    if (el.parentNode && el.parentNode._pending) {
+      el.parentNode._pending[vnode.key] = null;
+    }
+    if (expectsCSS) {
+      removeTransitionClass(el, leaveToClass);
+      removeTransitionClass(el, leaveActiveClass);
+    }
+    if (cb.cancelled) {
+      if (expectsCSS) {
+        removeTransitionClass(el, leaveClass);
+      }
+      leaveCancelled && leaveCancelled(el);
+    } else {
+      rm();
+      afterLeave && afterLeave(el);
+    }
+    el._leaveCb = null;
+  });
+
+  if (delayLeave) {
+    delayLeave(performLeave);
+  } else {
+    performLeave();
+  }
+
+  function performLeave () {
+    // the delayed leave may have already been cancelled
+    if (cb.cancelled) {
+      return
+    }
+    // record leaving element
+    if (!vnode.data.show && el.parentNode) {
+      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;
+    }
+    beforeLeave && beforeLeave(el);
+    if (expectsCSS) {
+      addTransitionClass(el, leaveClass);
+      addTransitionClass(el, leaveActiveClass);
+      nextFrame(function () {
+        removeTransitionClass(el, leaveClass);
+        if (!cb.cancelled) {
+          addTransitionClass(el, leaveToClass);
+          if (!userWantsControl) {
+            if (isValidDuration(explicitLeaveDuration)) {
+              setTimeout(cb, explicitLeaveDuration);
+            } else {
+              whenTransitionEnds(el, type, cb);
+            }
+          }
+        }
+      });
+    }
+    leave && leave(el, cb);
+    if (!expectsCSS && !userWantsControl) {
+      cb();
+    }
+  }
+}
+
+// only used in dev mode
+function checkDuration (val, name, vnode) {
+  if (typeof val !== 'number') {
+    warn(
+      "<transition> explicit " + name + " duration is not a valid number - " +
+      "got " + (JSON.stringify(val)) + ".",
+      vnode.context
+    );
+  } else if (isNaN(val)) {
+    warn(
+      "<transition> explicit " + name + " duration is NaN - " +
+      'the duration expression might be incorrect.',
+      vnode.context
+    );
+  }
+}
+
+function isValidDuration (val) {
+  return typeof val === 'number' && !isNaN(val)
+}
+
+/**
+ * Normalize a transition hook's argument length. The hook may be:
+ * - a merged hook (invoker) with the original in .fns
+ * - a wrapped component method (check ._length)
+ * - a plain function (.length)
+ */
+function getHookArgumentsLength (fn) {
+  if (isUndef(fn)) {
+    return false
+  }
+  var invokerFns = fn.fns;
+  if (isDef(invokerFns)) {
+    // invoker
+    return getHookArgumentsLength(
+      Array.isArray(invokerFns)
+        ? invokerFns[0]
+        : invokerFns
+    )
+  } else {
+    return (fn._length || fn.length) > 1
+  }
+}
+
+function _enter (_, vnode) {
+  if (vnode.data.show !== true) {
+    enter(vnode);
+  }
+}
+
+var transition = inBrowser ? {
+  create: _enter,
+  activate: _enter,
+  remove: function remove$$1 (vnode, rm) {
+    /* istanbul ignore else */
+    if (vnode.data.show !== true) {
+      leave(vnode, rm);
+    } else {
+      rm();
+    }
+  }
+} : {};
+
+var platformModules = [
+  attrs,
+  klass,
+  events,
+  domProps,
+  style,
+  transition
+];
+
+/*  */
+
+// the directive module should be applied last, after all
+// built-in modules have been applied.
+var modules = platformModules.concat(baseModules);
+
+var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });
+
+/**
+ * Not type checking this file because flow doesn't like attaching
+ * properties to Elements.
+ */
+
+/* istanbul ignore if */
+if (isIE9) {
+  // http://www.matts411.com/post/internet-explorer-9-oninput/
+  document.addEventListener('selectionchange', function () {
+    var el = document.activeElement;
+    if (el && el.vmodel) {
+      trigger(el, 'input');
+    }
+  });
+}
+
+var directive = {
+  inserted: function inserted (el, binding, vnode, oldVnode) {
+    if (vnode.tag === 'select') {
+      // #6903
+      if (oldVnode.elm && !oldVnode.elm._vOptions) {
+        mergeVNodeHook(vnode, 'postpatch', function () {
+          directive.componentUpdated(el, binding, vnode);
+        });
+      } else {
+        setSelected(el, binding, vnode.context);
+      }
+      el._vOptions = [].map.call(el.options, getValue);
+    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {
+      el._vModifiers = binding.modifiers;
+      if (!binding.modifiers.lazy) {
+        el.addEventListener('compositionstart', onCompositionStart);
+        el.addEventListener('compositionend', onCompositionEnd);
+        // Safari < 10.2 & UIWebView doesn't fire compositionend when
+        // switching focus before confirming composition choice
+        // this also fixes the issue where some browsers e.g. iOS Chrome
+        // fires "change" instead of "input" on autocomplete.
+        el.addEventListener('change', onCompositionEnd);
+        /* istanbul ignore if */
+        if (isIE9) {
+          el.vmodel = true;
+        }
+      }
+    }
+  },
+
+  componentUpdated: function componentUpdated (el, binding, vnode) {
+    if (vnode.tag === 'select') {
+      setSelected(el, binding, vnode.context);
+      // in case the options rendered by v-for have changed,
+      // it's possible that the value is out-of-sync with the rendered options.
+      // detect such cases and filter out values that no longer has a matching
+      // option in the DOM.
+      var prevOptions = el._vOptions;
+      var curOptions = el._vOptions = [].map.call(el.options, getValue);
+      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {
+        // trigger change event if
+        // no matching option found for at least one value
+        var needReset = el.multiple
+          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })
+          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);
+        if (needReset) {
+          trigger(el, 'change');
+        }
+      }
+    }
+  }
+};
+
+function setSelected (el, binding, vm) {
+  actuallySetSelected(el, binding, vm);
+  /* istanbul ignore if */
+  if (isIE || isEdge) {
+    setTimeout(function () {
+      actuallySetSelected(el, binding, vm);
+    }, 0);
+  }
+}
+
+function actuallySetSelected (el, binding, vm) {
+  var value = binding.value;
+  var isMultiple = el.multiple;
+  if (isMultiple && !Array.isArray(value)) {
+    warn(
+      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
+      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
+      vm
+    );
+    return
+  }
+  var selected, option;
+  for (var i = 0, l = el.options.length; i < l; i++) {
+    option = el.options[i];
+    if (isMultiple) {
+      selected = looseIndexOf(value, getValue(option)) > -1;
+      if (option.selected !== selected) {
+        option.selected = selected;
+      }
+    } else {
+      if (looseEqual(getValue(option), value)) {
+        if (el.selectedIndex !== i) {
+          el.selectedIndex = i;
+        }
+        return
+      }
+    }
+  }
+  if (!isMultiple) {
+    el.selectedIndex = -1;
+  }
+}
+
+function hasNoMatchingOption (value, options) {
+  return options.every(function (o) { return !looseEqual(o, value); })
+}
+
+function getValue (option) {
+  return '_value' in option
+    ? option._value
+    : option.value
+}
+
+function onCompositionStart (e) {
+  e.target.composing = true;
+}
+
+function onCompositionEnd (e) {
+  // prevent triggering an input event for no reason
+  if (!e.target.composing) { return }
+  e.target.composing = false;
+  trigger(e.target, 'input');
+}
+
+function trigger (el, type) {
+  var e = document.createEvent('HTMLEvents');
+  e.initEvent(type, true, true);
+  el.dispatchEvent(e);
+}
+
+/*  */
+
+// recursively search for possible transition defined inside the component root
+function locateNode (vnode) {
+  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
+    ? locateNode(vnode.componentInstance._vnode)
+    : vnode
+}
+
+var show = {
+  bind: function bind (el, ref, vnode) {
+    var value = ref.value;
+
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    var originalDisplay = el.__vOriginalDisplay =
+      el.style.display === 'none' ? '' : el.style.display;
+    if (value && transition$$1) {
+      vnode.data.show = true;
+      enter(vnode, function () {
+        el.style.display = originalDisplay;
+      });
+    } else {
+      el.style.display = value ? originalDisplay : 'none';
+    }
+  },
+
+  update: function update (el, ref, vnode) {
+    var value = ref.value;
+    var oldValue = ref.oldValue;
+
+    /* istanbul ignore if */
+    if (!value === !oldValue) { return }
+    vnode = locateNode(vnode);
+    var transition$$1 = vnode.data && vnode.data.transition;
+    if (transition$$1) {
+      vnode.data.show = true;
+      if (value) {
+        enter(vnode, function () {
+          el.style.display = el.__vOriginalDisplay;
+        });
+      } else {
+        leave(vnode, function () {
+          el.style.display = 'none';
+        });
+      }
+    } else {
+      el.style.display = value ? el.__vOriginalDisplay : 'none';
+    }
+  },
+
+  unbind: function unbind (
+    el,
+    binding,
+    vnode,
+    oldVnode,
+    isDestroy
+  ) {
+    if (!isDestroy) {
+      el.style.display = el.__vOriginalDisplay;
+    }
+  }
+};
+
+var platformDirectives = {
+  model: directive,
+  show: show
+};
+
+/*  */
+
+var transitionProps = {
+  name: String,
+  appear: Boolean,
+  css: Boolean,
+  mode: String,
+  type: String,
+  enterClass: String,
+  leaveClass: String,
+  enterToClass: String,
+  leaveToClass: String,
+  enterActiveClass: String,
+  leaveActiveClass: String,
+  appearClass: String,
+  appearActiveClass: String,
+  appearToClass: String,
+  duration: [Number, String, Object]
+};
+
+// in case the child is also an abstract component, e.g. <keep-alive>
+// we want to recursively retrieve the real component to be rendered
+function getRealChild (vnode) {
+  var compOptions = vnode && vnode.componentOptions;
+  if (compOptions && compOptions.Ctor.options.abstract) {
+    return getRealChild(getFirstComponentChild(compOptions.children))
+  } else {
+    return vnode
+  }
+}
+
+function extractTransitionData (comp) {
+  var data = {};
+  var options = comp.$options;
+  // props
+  for (var key in options.propsData) {
+    data[key] = comp[key];
+  }
+  // events.
+  // extract listeners and pass them directly to the transition methods
+  var listeners = options._parentListeners;
+  for (var key$1 in listeners) {
+    data[camelize(key$1)] = listeners[key$1];
+  }
+  return data
+}
+
+function placeholder (h, rawChild) {
+  if (/\d-keep-alive$/.test(rawChild.tag)) {
+    return h('keep-alive', {
+      props: rawChild.componentOptions.propsData
+    })
+  }
+}
+
+function hasParentTransition (vnode) {
+  while ((vnode = vnode.parent)) {
+    if (vnode.data.transition) {
+      return true
+    }
+  }
+}
+
+function isSameChild (child, oldChild) {
+  return oldChild.key === child.key && oldChild.tag === child.tag
+}
+
+var isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };
+
+var isVShowDirective = function (d) { return d.name === 'show'; };
+
+var Transition = {
+  name: 'transition',
+  props: transitionProps,
+  abstract: true,
+
+  render: function render (h) {
+    var this$1 = this;
+
+    var children = this.$slots.default;
+    if (!children) {
+      return
+    }
+
+    // filter out text nodes (possible whitespaces)
+    children = children.filter(isNotTextNode);
+    /* istanbul ignore if */
+    if (!children.length) {
+      return
+    }
+
+    // warn multiple elements
+    if (children.length > 1) {
+      warn(
+        '<transition> can only be used on a single element. Use ' +
+        '<transition-group> for lists.',
+        this.$parent
+      );
+    }
+
+    var mode = this.mode;
+
+    // warn invalid mode
+    if (mode && mode !== 'in-out' && mode !== 'out-in'
+    ) {
+      warn(
+        'invalid <transition> mode: ' + mode,
+        this.$parent
+      );
+    }
+
+    var rawChild = children[0];
+
+    // if this is a component root node and the component's
+    // parent container node also has transition, skip.
+    if (hasParentTransition(this.$vnode)) {
+      return rawChild
+    }
+
+    // apply transition data to child
+    // use getRealChild() to ignore abstract components e.g. keep-alive
+    var child = getRealChild(rawChild);
+    /* istanbul ignore if */
+    if (!child) {
+      return rawChild
+    }
+
+    if (this._leaving) {
+      return placeholder(h, rawChild)
+    }
+
+    // ensure a key that is unique to the vnode type and to this transition
+    // component instance. This key will be used to remove pending leaving nodes
+    // during entering.
+    var id = "__transition-" + (this._uid) + "-";
+    child.key = child.key == null
+      ? child.isComment
+        ? id + 'comment'
+        : id + child.tag
+      : isPrimitive(child.key)
+        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
+        : child.key;
+
+    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
+    var oldRawChild = this._vnode;
+    var oldChild = getRealChild(oldRawChild);
+
+    // mark v-show
+    // so that the transition module can hand over the control to the directive
+    if (child.data.directives && child.data.directives.some(isVShowDirective)) {
+      child.data.show = true;
+    }
+
+    if (
+      oldChild &&
+      oldChild.data &&
+      !isSameChild(child, oldChild) &&
+      !isAsyncPlaceholder(oldChild) &&
+      // #6687 component root is a comment node
+      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)
+    ) {
+      // replace old child transition data with fresh one
+      // important for dynamic transitions!
+      var oldData = oldChild.data.transition = extend({}, data);
+      // handle transition mode
+      if (mode === 'out-in') {
+        // return placeholder node and queue update when leave finishes
+        this._leaving = true;
+        mergeVNodeHook(oldData, 'afterLeave', function () {
+          this$1._leaving = false;
+          this$1.$forceUpdate();
+        });
+        return placeholder(h, rawChild)
+      } else if (mode === 'in-out') {
+        if (isAsyncPlaceholder(child)) {
+          return oldRawChild
+        }
+        var delayedLeave;
+        var performLeave = function () { delayedLeave(); };
+        mergeVNodeHook(data, 'afterEnter', performLeave);
+        mergeVNodeHook(data, 'enterCancelled', performLeave);
+        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
+      }
+    }
+
+    return rawChild
+  }
+};
+
+/*  */
+
+var props = extend({
+  tag: String,
+  moveClass: String
+}, transitionProps);
+
+delete props.mode;
+
+var TransitionGroup = {
+  props: props,
+
+  beforeMount: function beforeMount () {
+    var this$1 = this;
+
+    var update = this._update;
+    this._update = function (vnode, hydrating) {
+      var restoreActiveInstance = setActiveInstance(this$1);
+      // force removing pass
+      this$1.__patch__(
+        this$1._vnode,
+        this$1.kept,
+        false, // hydrating
+        true // removeOnly (!important, avoids unnecessary moves)
+      );
+      this$1._vnode = this$1.kept;
+      restoreActiveInstance();
+      update.call(this$1, vnode, hydrating);
+    };
+  },
+
+  render: function render (h) {
+    var tag = this.tag || this.$vnode.data.tag || 'span';
+    var map = Object.create(null);
+    var prevChildren = this.prevChildren = this.children;
+    var rawChildren = this.$slots.default || [];
+    var children = this.children = [];
+    var transitionData = extractTransitionData(this);
+
+    for (var i = 0; i < rawChildren.length; i++) {
+      var c = rawChildren[i];
+      if (c.tag) {
+        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
+          children.push(c);
+          map[c.key] = c
+          ;(c.data || (c.data = {})).transition = transitionData;
+        } else {
+          var opts = c.componentOptions;
+          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
+          warn(("<transition-group> children must be keyed: <" + name + ">"));
+        }
+      }
+    }
+
+    if (prevChildren) {
+      var kept = [];
+      var removed = [];
+      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
+        var c$1 = prevChildren[i$1];
+        c$1.data.transition = transitionData;
+        c$1.data.pos = c$1.elm.getBoundingClientRect();
+        if (map[c$1.key]) {
+          kept.push(c$1);
+        } else {
+          removed.push(c$1);
+        }
+      }
+      this.kept = h(tag, null, kept);
+      this.removed = removed;
+    }
+
+    return h(tag, null, children)
+  },
+
+  updated: function updated () {
+    var children = this.prevChildren;
+    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
+    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
+      return
+    }
+
+    // we divide the work into three loops to avoid mixing DOM reads and writes
+    // in each iteration - which helps prevent layout thrashing.
+    children.forEach(callPendingCbs);
+    children.forEach(recordPosition);
+    children.forEach(applyTranslation);
+
+    // force reflow to put everything in position
+    // assign to this to avoid being removed in tree-shaking
+    // $flow-disable-line
+    this._reflow = document.body.offsetHeight;
+
+    children.forEach(function (c) {
+      if (c.data.moved) {
+        var el = c.elm;
+        var s = el.style;
+        addTransitionClass(el, moveClass);
+        s.transform = s.WebkitTransform = s.transitionDuration = '';
+        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
+          if (e && e.target !== el) {
+            return
+          }
+          if (!e || /transform$/.test(e.propertyName)) {
+            el.removeEventListener(transitionEndEvent, cb);
+            el._moveCb = null;
+            removeTransitionClass(el, moveClass);
+          }
+        });
+      }
+    });
+  },
+
+  methods: {
+    hasMove: function hasMove (el, moveClass) {
+      /* istanbul ignore if */
+      if (!hasTransition) {
+        return false
+      }
+      /* istanbul ignore if */
+      if (this._hasMove) {
+        return this._hasMove
+      }
+      // Detect whether an element with the move class applied has
+      // CSS transitions. Since the element may be inside an entering
+      // transition at this very moment, we make a clone of it and remove
+      // all other transition classes applied to ensure only the move class
+      // is applied.
+      var clone = el.cloneNode();
+      if (el._transitionClasses) {
+        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
+      }
+      addClass(clone, moveClass);
+      clone.style.display = 'none';
+      this.$el.appendChild(clone);
+      var info = getTransitionInfo(clone);
+      this.$el.removeChild(clone);
+      return (this._hasMove = info.hasTransform)
+    }
+  }
+};
+
+function callPendingCbs (c) {
+  /* istanbul ignore if */
+  if (c.elm._moveCb) {
+    c.elm._moveCb();
+  }
+  /* istanbul ignore if */
+  if (c.elm._enterCb) {
+    c.elm._enterCb();
+  }
+}
+
+function recordPosition (c) {
+  c.data.newPos = c.elm.getBoundingClientRect();
+}
+
+function applyTranslation (c) {
+  var oldPos = c.data.pos;
+  var newPos = c.data.newPos;
+  var dx = oldPos.left - newPos.left;
+  var dy = oldPos.top - newPos.top;
+  if (dx || dy) {
+    c.data.moved = true;
+    var s = c.elm.style;
+    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
+    s.transitionDuration = '0s';
+  }
+}
+
+var platformComponents = {
+  Transition: Transition,
+  TransitionGroup: TransitionGroup
+};
+
+/*  */
+
+// install platform specific utils
+Vue.config.mustUseProp = mustUseProp;
+Vue.config.isReservedTag = isReservedTag;
+Vue.config.isReservedAttr = isReservedAttr;
+Vue.config.getTagNamespace = getTagNamespace;
+Vue.config.isUnknownElement = isUnknownElement;
+
+// install platform runtime directives & components
+extend(Vue.options.directives, platformDirectives);
+extend(Vue.options.components, platformComponents);
+
+// install platform patch function
+Vue.prototype.__patch__ = inBrowser ? patch : noop;
+
+// public mount method
+Vue.prototype.$mount = function (
+  el,
+  hydrating
+) {
+  el = el && inBrowser ? query(el) : undefined;
+  return mountComponent(this, el, hydrating)
+};
+
+// devtools global hook
+/* istanbul ignore next */
+if (inBrowser) {
+  setTimeout(function () {
+    if (config.devtools) {
+      if (devtools) {
+        devtools.emit('init', Vue);
+      } else {
+        console[console.info ? 'info' : 'log'](
+          'Download the Vue Devtools extension for a better development experience:\n' +
+          'https://github.com/vuejs/vue-devtools'
+        );
+      }
+    }
+    if (config.productionTip !== false &&
+      typeof console !== 'undefined'
+    ) {
+      console[console.info ? 'info' : 'log'](
+        "You are running Vue in development mode.\n" +
+        "Make sure to turn on production mode when deploying for production.\n" +
+        "See more tips at https://vuejs.org/guide/deployment.html"
+      );
+    }
+  }, 0);
+}
+
+/*  */
+
+module.exports = Vue;
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
new file mode 100644
index 00000000000..beb78f834a7
--- /dev/null
+++ b/dist/vue.runtime.common.prod.js
@@ -0,0 +1,6 @@
+/*!
+ * Vue.js v2.6.0-beta.2
+ * (c) 2014-2019 Evan You
+ * Released under the MIT License.
+ */
+"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var 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io={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){io.componentUpdated(t,e,n)}):ao(t,e,n.context),t._vOptions=[].map.call(t.options,uo)):("textarea"===n.tag||Bn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",lo),t.addEventListener("compositionend",fo),t.addEventListener("change",fo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){ao(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,uo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return co(t,o)}):e.value!==e.oldValue&&co(e.value,o))&&po(t,"change")}}};function ao(t,e,n){so(t,e,n),(W||K)&&setTimeout(function(){so(t,e,n)},0)}function so(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,uo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(uo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function co(t,e){return e.every(function(e){return!j(e,t)})}function uo(t){return"_value"in t?t._value:t.value}function lo(t){t.target.composing=!0}function fo(t){t.target.composing&&(t.target.composing=!1,po(t.target,"input"))}function po(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function vo(t){return!t.componentInstance||t.data&&t.data.transition?t:vo(t.componentInstance._vnode)}var ho={model:io,show:{bind:function(t,e,n){var r=e.value,o=(n=vo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Yr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=vo(n)).data&&n.data.transition?(n.data.show=!0,r?Yr(n,function(){t.style.display=t.__vOriginalDisplay}):to(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},mo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function yo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?yo(ce(e.children)):t}function go(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function _o(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var bo=function(t){return t.tag||se(t)},Co=function(t){return"show"===t.name},Ao={name:"transition",props:mo,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(bo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=yo(i);if(!a)return i;if(this._leaving)return _o(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=go(this),u=this._vnode,l=yo(u);if(a.data.directives&&a.data.directives.some(Co)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!se(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),_o(t,i);if("in-out"===r){if(se(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},wo=x({tag:String,moveClass:String},mo);function $o(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function xo(t){t.data.newPos=t.elm.getBoundingClientRect()}function Oo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete wo.mode;var ko={Transition:Ao,TransitionGroup:{props:wo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=ye(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=go(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach($o),t.forEach(xo),t.forEach(Oo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;qr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Hr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Hr,t),n._moveCb=null,Kr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Mr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Nr(n,t)}),Dr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Zr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};yn.config.mustUseProp=function(t,e,n){return"value"===n&&On(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},yn.config.isReservedTag=Un,yn.config.isReservedAttr=xn,yn.config.getTagNamespace=function(t){return Rn(t)?"svg":"math"===t?"math":void 0},yn.config.isUnknownElement=function(t){if(!H)return!0;if(Un(t))return!1;if(t=t.toLowerCase(),null!=Hn[t])return Hn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Hn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Hn[t]=/HTMLUnknownElement/.test(e.toString())},x(yn.options.directives,ho),x(yn.options.components,ko),yn.prototype.__patch__=H?oo:k,yn.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=ft),be(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Ie(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&be(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,be(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&Y&&Y.emit("init",yn)},0),module.exports=yn;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 5ec9cb7f866..1f8be60439f 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.1
+ * Vue.js v2.6.0-beta.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -358,7 +358,7 @@ var LIFECYCLE_HOOKS = [
   'activated',
   'deactivated',
   'errorCaptured',
-  'ssrPrefetch'
+  'serverPrefetch'
 ];
 
 /*  */
@@ -1878,6 +1878,8 @@ function logError (err, vm, info) {
 
 /*  */
 
+var isUsingMicroTask = false;
+
 var callbacks = [];
 var pending = false;
 
@@ -1921,6 +1923,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
     // "force" the microtask queue to be flushed by adding an empty timer.
     if (isIOS) { setTimeout(noop); }
   };
+  isUsingMicroTask = true;
 } else if (!isIE && typeof MutationObserver !== 'undefined' && (
   isNative(MutationObserver) ||
   // PhantomJS and iOS 7.x
@@ -1939,6 +1942,7 @@ if (typeof Promise !== 'undefined' && isNative(Promise)) {
     counter = (counter + 1) % 2;
     textNode.data = String(counter);
   };
+  isUsingMicroTask = true;
 } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
   // Fallback to setImmediate.
   // Techinically it leverages the (macro) task queue,
@@ -2737,13 +2741,14 @@ function isWhitespace (node) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  hasDynamicKeys,
   res
 ) {
-  res = res || {};
+  res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, res);
+      resolveScopedSlots(slot, hasDynamicKeys, res);
     } else {
       res[slot.key] = slot.fn;
     }
@@ -2959,12 +2964,22 @@ function updateChildComponent (
   }
 
   // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
     renderChildren ||               // has new static slots
     vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
+    hasDynamicScopedSlot
   );
 
   vm.$options._parentVnode = parentVnode;
@@ -3003,7 +3018,7 @@ function updateChildComponent (
   updateComponentListeners(vm, listeners, oldListeners);
 
   // resolve slots + force update if has children
-  if (hasChildren) {
+  if (needsForceUpdate) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
     vm.$forceUpdate();
   }
@@ -3094,10 +3109,32 @@ function resetSchedulerState () {
   waiting = flushing = false;
 }
 
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
+
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res ( relative to poge load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
+
 /**
  * Flush both queues and run the watchers.
  */
 function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
   flushing = true;
   var watcher, id;
 
@@ -3854,7 +3891,7 @@ function normalizeScopedSlots (
   } else {
     res = {};
     for (var key in slots) {
-      if (slots[key]) {
+      if (slots[key] && key[0] !== '$') {
         res[key] = normalizeScopedSlot(slots[key]);
       }
     }
@@ -3866,6 +3903,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
+  res.$stable = slots && slots.$stable;
   return res
 }
 
@@ -4144,6 +4182,31 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
+}
+
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -4160,6 +4223,8 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
 }
 
 /*  */
@@ -5265,7 +5330,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.1';
+Vue.version = '2.6.0-beta.2';
 
 /*  */
 
@@ -6409,6 +6474,7 @@ function _update (oldVnode, vnode) {
     } else {
       // existing directive, update
       dir.oldValue = oldDir.value;
+      dir.oldArg = oldDir.arg;
       callHook$1(dir, 'update', vnode, oldVnode);
       if (dir.def && dir.def.componentUpdated) {
         dirsWithPostpatch.push(dir);
@@ -6686,17 +6752,17 @@ function add$1 (
   capture,
   passive
 ) {
-  if (isChrome) {
-    // async edge case #6566: inner click event triggers patch, event handler
-    // attached to outer element during patch, and triggered again. This only
-    // happens in Chrome as it fires microtask ticks between event propagation.
-    // the solution is simple: we save the timestamp when a handler is attached,
-    // and the handler would only fire if the event passed to it was fired
-    // AFTER it was attached.
-    var now = performance.now();
+  // async edge case #6566: inner click event triggers patch, event handler
+  // attached to outer element during patch, and triggered again. This
+  // happens because browsers fire microtask ticks between event propagation.
+  // the solution is simple: we save the timestamp when a handler is attached,
+  // and the handler would only fire if the event passed to it was fired
+  // AFTER it was attached.
+  if (isUsingMicroTask) {
+    var attachedTimestamp = currentFlushTimestamp;
     var original = handler;
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= now) {
+      if (e.timeStamp >= attachedTimestamp) {
         return original.apply(this, arguments)
       }
     };
@@ -6777,14 +6843,11 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // #4521: if a click event triggers update before the change event is
-    // dispatched on a checkbox/radio input, the input's checked state will
-    // be reset and fail to trigger another update.
-    // The root cause here is that browsers may fire microtasks in between click/change.
-    // In Chrome / Firefox, click event fires before change, thus having this problem.
-    // In Safari / Edge, the order is opposite.
-    // Note: in Edge, if you click too fast, only the click event would fire twice.
-    if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+    // skip the update if old and new VDOM state is the same.
+    // the only exception is `value` where the DOM value may be temporarily
+    // out of sync with VDOM state due to focus, composition and modifiers.
+    // This also covers #4521 by skipping the unnecesarry `checked` update.
+    if (key !== 'value' && cur === oldProps[key]) {
       continue
     }
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index cd89a0d9c45..78615dd2170 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.1
+ * Vue.js v2.6.0-beta.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -364,7 +364,7 @@
     'activated',
     'deactivated',
     'errorCaptured',
-    'ssrPrefetch'
+    'serverPrefetch'
   ];
 
   /*  */
@@ -1878,6 +1878,8 @@
 
   /*  */
 
+  var isUsingMicroTask = false;
+
   var callbacks = [];
   var pending = false;
 
@@ -1921,6 +1923,7 @@
       // "force" the microtask queue to be flushed by adding an empty timer.
       if (isIOS) { setTimeout(noop); }
     };
+    isUsingMicroTask = true;
   } else if (!isIE && typeof MutationObserver !== 'undefined' && (
     isNative(MutationObserver) ||
     // PhantomJS and iOS 7.x
@@ -1939,6 +1942,7 @@
       counter = (counter + 1) % 2;
       textNode.data = String(counter);
     };
+    isUsingMicroTask = true;
   } else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {
     // Fallback to setImmediate.
     // Techinically it leverages the (macro) task queue,
@@ -2735,13 +2739,14 @@
 
   function resolveScopedSlots (
     fns, // see flow/vnode
+    hasDynamicKeys,
     res
   ) {
-    res = res || {};
+    res = res || { $stable: !hasDynamicKeys };
     for (var i = 0; i < fns.length; i++) {
       var slot = fns[i];
       if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, res);
+        resolveScopedSlots(slot, hasDynamicKeys, res);
       } else {
         res[slot.key] = slot.fn;
       }
@@ -2957,12 +2962,22 @@
     }
 
     // determine whether component has slot children
-    // we need to do this before overwriting $options._renderChildren
-    var hasChildren = !!(
+    // we need to do this before overwriting $options._renderChildren.
+
+    // check if there are dynamic scopedSlots (hand-written or compiled but with
+    // dynamic slot names). Static scoped slots compiled from template has the
+    // "$stable" marker.
+    var hasDynamicScopedSlot = !!(
+      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    );
+    // Any static slot children from the parent may have changed during parent's
+    // update. Dynamic scoped slots may also have changed. In such cases, a forced
+    // update is necessary to ensure correctness.
+    var needsForceUpdate = !!(
       renderChildren ||               // has new static slots
       vm.$options._renderChildren ||  // has old static slots
-      parentVnode.data.scopedSlots || // has new scoped slots
-      vm.$scopedSlots !== emptyObject // has old scoped slots
+      hasDynamicScopedSlot
     );
 
     vm.$options._parentVnode = parentVnode;
@@ -3001,7 +3016,7 @@
     updateComponentListeners(vm, listeners, oldListeners);
 
     // resolve slots + force update if has children
-    if (hasChildren) {
+    if (needsForceUpdate) {
       vm.$slots = resolveSlots(renderChildren, parentVnode.context);
       vm.$forceUpdate();
     }
@@ -3092,10 +3107,32 @@
     waiting = flushing = false;
   }
 
+  // Async edge case #6566 requires saving the timestamp when event listeners are
+  // attached. However, calling performance.now() has a perf overhead especially
+  // if the page has thousands of event listeners. Instead, we take a timestamp
+  // every time the scheduler flushes and use that for all event listeners
+  // attached during that flush.
+  var currentFlushTimestamp = 0;
+
+  // Async edge case fix requires storing an event listener's attach timestamp.
+  var getNow = Date.now;
+
+  // Determine what event timestamp the browser is using. Annoyingly, the
+  // timestamp can either be hi-res ( relative to poge load) or low-res
+  // (relative to UNIX epoch), so in order to compare time we have to use the
+  // same timestamp type when saving the flush timestamp.
+  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+    // if the low-res timestamp which is bigger than the event timestamp
+    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listeners as well.
+    getNow = function () { return performance.now(); };
+  }
+
   /**
    * Flush both queues and run the watchers.
    */
   function flushSchedulerQueue () {
+    currentFlushTimestamp = getNow();
     flushing = true;
     var watcher, id;
 
@@ -3845,7 +3882,7 @@
     } else {
       res = {};
       for (var key in slots) {
-        if (slots[key]) {
+        if (slots[key] && key[0] !== '$') {
           res[key] = normalizeScopedSlot(slots[key]);
         }
       }
@@ -3857,6 +3894,7 @@
       }
     }
     res._normalized = true;
+    res.$stable = slots && slots.$stable;
     return res
   }
 
@@ -4135,6 +4173,31 @@
 
   /*  */
 
+  function bindDynamicKeys (baseObj, values) {
+    for (var i = 0; i < values.length; i += 2) {
+      var key = values[i];
+      if (typeof key === 'string' && key) {
+        baseObj[values[i]] = values[i + 1];
+      } else if (key !== '' && key !== null) {
+        // null is a speical value for explicitly removing a binding
+        warn(
+          ("Invalid value for dynamic directive argument (expected string or null): " + key),
+          this
+        );
+      }
+    }
+    return baseObj
+  }
+
+  // helper to dynamically append modifier runtime markers to event names.
+  // ensure only append when value is already string, otherwise it will be cast
+  // to string and cause the type check to miss.
+  function prependModifier (value, symbol) {
+    return typeof value === 'string' ? symbol + value : value
+  }
+
+  /*  */
+
   function installRenderHelpers (target) {
     target._o = markOnce;
     target._n = toNumber;
@@ -4151,6 +4214,8 @@
     target._e = createEmptyVNode;
     target._u = resolveScopedSlots;
     target._g = bindObjectListeners;
+    target._d = bindDynamicKeys;
+    target._p = prependModifier;
   }
 
   /*  */
@@ -5249,7 +5314,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0-beta.1';
+  Vue.version = '2.6.0-beta.2';
 
   /*  */
 
@@ -6391,6 +6456,7 @@
       } else {
         // existing directive, update
         dir.oldValue = oldDir.value;
+        dir.oldArg = oldDir.arg;
         callHook$1(dir, 'update', vnode, oldVnode);
         if (dir.def && dir.def.componentUpdated) {
           dirsWithPostpatch.push(dir);
@@ -6668,17 +6734,17 @@
     capture,
     passive
   ) {
-    if (isChrome) {
-      // async edge case #6566: inner click event triggers patch, event handler
-      // attached to outer element during patch, and triggered again. This only
-      // happens in Chrome as it fires microtask ticks between event propagation.
-      // the solution is simple: we save the timestamp when a handler is attached,
-      // and the handler would only fire if the event passed to it was fired
-      // AFTER it was attached.
-      var now = performance.now();
+    // async edge case #6566: inner click event triggers patch, event handler
+    // attached to outer element during patch, and triggered again. This
+    // happens because browsers fire microtask ticks between event propagation.
+    // the solution is simple: we save the timestamp when a handler is attached,
+    // and the handler would only fire if the event passed to it was fired
+    // AFTER it was attached.
+    if (isUsingMicroTask) {
+      var attachedTimestamp = currentFlushTimestamp;
       var original = handler;
       handler = original._wrapper = function (e) {
-        if (e.timeStamp >= now) {
+        if (e.timeStamp >= attachedTimestamp) {
           return original.apply(this, arguments)
         }
       };
@@ -6759,14 +6825,11 @@
         }
       }
 
-      // #4521: if a click event triggers update before the change event is
-      // dispatched on a checkbox/radio input, the input's checked state will
-      // be reset and fail to trigger another update.
-      // The root cause here is that browsers may fire microtasks in between click/change.
-      // In Chrome / Firefox, click event fires before change, thus having this problem.
-      // In Safari / Edge, the order is opposite.
-      // Note: in Edge, if you click too fast, only the click event would fire twice.
-      if (key === 'checked' && !isNotInFocusAndDirty(elm, cur)) {
+      // skip the update if old and new VDOM state is the same.
+      // the only exception is `value` where the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This also covers #4521 by skipping the unnecesarry `checked` update.
+      if (key !== 'value' && cur === oldProps[key]) {
         continue
       }
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 0d91ba6ab8e..f29aa2d59ca 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.1
+ * Vue.js v2.6.0-beta.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return 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n.listeners=e,n}(t.elm,o),n(r=t.componentInstance)&&n(r=r._vnode)&&n(r.data)&&A(r,e),r=0;r<s.remove.length;++r)s.remove[r](t,e);n(r=t.data.hook)&&n(r=r.remove)?r(t,e):e()}else l(t.elm)}function w(t,e,r,o){for(var i=r;i<o;i++){var a=e[i];if(n(a)&&Xn(t,a))return i}}function $(t,o,i,a,c,l){if(t!==o){n(o.elm)&&n(a)&&(o=a[c]=dt(o));var p=o.elm=t.elm;if(r(t.isAsyncPlaceholder))n(o.asyncFactory.resolved)?k(t.elm,o,i):o.isAsyncPlaceholder=!0;else if(r(o.isStatic)&&r(t.isStatic)&&o.key===t.key&&(r(o.isCloned)||r(o.isOnce)))o.componentInstance=t.componentInstance;else{var d,v=o.data;n(v)&&n(d=v.hook)&&n(d=d.prepatch)&&d(t,o);var h=t.children,y=o.children;if(n(v)&&m(o)){for(d=0;d<s.update.length;++d)s.update[d](t,o);n(d=v.hook)&&n(d=d.update)&&d(t,o)}e(o.text)?n(h)&&n(y)?h!==y&&function(t,r,o,i,a){for(var s,c,l,p=0,d=0,v=r.length-1,h=r[0],m=r[v],y=o.length-1,g=o[0],b=o[y],A=!a;p<=v&&d<=y;)e(h)?h=r[++p]:e(m)?m=r[--v]:Xn(h,g)?($(h,g,i,o,d),h=r[++p],g=o[++d]):Xn(m,b)?($(m,b,i,o,y),m=r[--v],b=o[--y]):Xn(h,b)?($(h,b,i,o,y),A&&u.insertBefore(t,h.elm,u.nextSibling(m.elm)),h=r[++p],b=o[--y]):Xn(m,g)?($(m,g,i,o,d),A&&u.insertBefore(t,m.elm,h.elm),m=r[--v],g=o[++d]):(e(s)&&(s=Gn(r,p,v)),e(c=n(g.key)?s[g.key]:w(g,r,p,v))?f(g,i,t,h.elm,!1,o,d):Xn(l=r[c],g)?($(l,g,i,o,d),r[c]=void 0,A&&u.insertBefore(t,l.elm,h.elm)):f(g,i,t,h.elm,!1,o,d),g=o[++d]);p>v?_(t,e(o[y+1])?null:o[y+1].elm,o,d,y,i):d>y&&C(0,r,p,v)}(p,h,y,i,l):n(y)?(n(t.text)&&u.setTextContent(p,""),_(p,null,y,0,y.length-1,i)):n(h)?C(0,h,0,h.length-1):n(t.text)&&u.setTextContent(p,""):t.text!==o.text&&u.setTextContent(p,o.text),n(v)&&n(d=v.hook)&&n(d=d.postpatch)&&d(t,o)}}}function x(t,e,o){if(r(o)&&n(t.parent))t.parent.data.pendingInsert=e;else for(var i=0;i<e.length;++i)e[i].data.hook.insert(e[i])}var O=p("attrs,class,staticClass,staticStyle,key");function k(t,e,o,i){var a,s=e.tag,c=e.data,u=e.children;if(i=i||c&&c.pre,e.elm=t,r(e.isComment)&&n(e.asyncFactory))return e.isAsyncPlaceholder=!0,!0;if(n(c)&&(n(a=c.hook)&&n(a=a.init)&&a(e,!0),n(a=e.componentInstance)))return d(e,o),!0;if(n(s)){if(n(u))if(t.hasChildNodes())if(n(a=c)&&n(a=a.domProps)&&n(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var l=!0,f=t.firstChild,p=0;p<u.length;p++){if(!f||!k(f,u[p],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Jt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,p=[];if(e(t))l=!0,f(o,p);else{var d=n(t.nodeType);if(!d&&Xn(t,o))$(t,o,p,null,null,a);else{if(d){if(1===t.nodeType&&t.hasAttribute(D)&&(t.removeAttribute(D),i=!0),r(i)&&k(t,o,p))return x(o,p,!0),t;c=t,t=new ut(u.tagName(c).toLowerCase(),{},[],void 0,c)}var v=t.elm,h=u.parentNode(v);if(f(o,p,v._leaveCb?null:h,u.nextSibling(v)),n(o.parent))for(var y=o.parent,g=m(o);y;){for(var _=0;_<s.destroy.length;++_)s.destroy[_](y);if(y.elm=o.elm,g){for(var A=0;A<s.create.length;++A)s.create[A](qn,y);var w=y.data.hook.insert;if(w.merged)for(var O=1;O<w.fns.length;O++)w.fns[O]()}else Wn(y);y=y.parent}n(h)?C(0,[t],0,0):n(t.tag)&&b(t)}}return x(o,p,l),o.elm}n(t)&&b(t)}}({nodeOps:Bn,modules:[ar,ur,yr,br,Ir,H?{create:ro,activate:ro,remove:function(t,e){!0!==t.data.show?to(t,e):e()}}:{}].concat(nr)});q&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&po(t,"input")});var io={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){io.componentUpdated(t,e,n)}):ao(t,e,n.context),t._vOptions=[].map.call(t.options,uo)):("textarea"===n.tag||Vn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",lo),t.addEventListener("compositionend",fo),t.addEventListener("change",fo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){ao(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,uo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return co(t,o)}):e.value!==e.oldValue&&co(e.value,o))&&po(t,"change")}}};function ao(t,e,n){so(t,e,n),(W||K)&&setTimeout(function(){so(t,e,n)},0)}function so(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,uo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(uo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function co(t,e){return e.every(function(e){return!j(e,t)})}function uo(t){return"_value"in t?t._value:t.value}function lo(t){t.target.composing=!0}function fo(t){t.target.composing&&(t.target.composing=!1,po(t.target,"input"))}function po(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function vo(t){return!t.componentInstance||t.data&&t.data.transition?t:vo(t.componentInstance._vnode)}var ho={model:io,show:{bind:function(t,e,n){var r=e.value,o=(n=vo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,Yr(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=vo(n)).data&&n.data.transition?(n.data.show=!0,r?Yr(n,function(){t.style.display=t.__vOriginalDisplay}):to(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},mo={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function yo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?yo(ce(e.children)):t}function go(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function _o(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var bo=function(t){return t.tag||se(t)},Co=function(t){return"show"===t.name},Ao={name:"transition",props:mo,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(bo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=yo(i);if(!a)return i;if(this._leaving)return _o(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=go(this),u=this._vnode,l=yo(u);if(a.data.directives&&a.data.directives.some(Co)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!se(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),_o(t,i);if("in-out"===r){if(se(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},wo=x({tag:String,moveClass:String},mo);function $o(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function xo(t){t.data.newPos=t.elm.getBoundingClientRect()}function Oo(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete wo.mode;var ko={Transition:Ao,TransitionGroup:{props:wo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=ye(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=go(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach($o),t.forEach(xo),t.forEach(Oo),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;qr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Hr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Hr,t),n._moveCb=null,Kr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Mr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Nr(n,t)}),Dr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Zr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return yn.config.mustUseProp=function(t,e,n){return"value"===n&&On(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},yn.config.isReservedTag=Un,yn.config.isReservedAttr=xn,yn.config.getTagNamespace=function(t){return Rn(t)?"svg":"math"===t?"math":void 0},yn.config.isUnknownElement=function(t){if(!H)return!0;if(Un(t))return!1;if(t=t.toLowerCase(),null!=Hn[t])return Hn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Hn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Hn[t]=/HTMLUnknownElement/.test(e.toString())},x(yn.options.directives,ho),x(yn.options.components,ko),yn.prototype.__patch__=H?oo:k,yn.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=ft),be(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Ie(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&be(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,be(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&Y&&Y.emit("init",yn)},0),yn});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index b7fbffff1a0..a8677d5f73d 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -771,7 +771,7 @@
     'activated',
     'deactivated',
     'errorCaptured',
-    'ssrPrefetch'
+    'serverPrefetch'
   ];
 
   /*  */
@@ -2695,13 +2695,16 @@
       : []
   }
 
-  function addProp (el, name, value, range) {
-    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
+  function addProp (el, name, value, range, dynamic) {
+    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
     el.plain = false;
   }
 
-  function addAttr (el, name, value, range) {
-    (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
+  function addAttr (el, name, value, range, dynamic) {
+    var attrs = dynamic
+      ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+      : (el.attrs || (el.attrs = []));
+    attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
     el.plain = false;
   }
 
@@ -2717,13 +2720,27 @@
     rawName,
     value,
     arg,
+    isDynamicArg,
     modifiers,
     range
   ) {
-    (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
+    (el.directives || (el.directives = [])).push(rangeSetItem({
+      name: name,
+      rawName: rawName,
+      value: value,
+      arg: arg,
+      isDynamicArg: isDynamicArg,
+      modifiers: modifiers
+    }, range));
     el.plain = false;
   }
 
+  function prependModifierMarker (symbol, name, dynamic) {
+    return dynamic
+      ? ("_p(" + name + ",\"" + symbol + "\")")
+      : symbol + name // mark the event as captured
+  }
+
   function addHandler (
     el,
     name,
@@ -2731,7 +2748,8 @@
     modifiers,
     important,
     warn,
-    range
+    range,
+    dynamic
   ) {
     modifiers = modifiers || emptyObject;
     // warn prevent and passive modifier
@@ -2750,11 +2768,17 @@
     // normalize click.right and click.middle since they don't actually fire
     // this is technically browser-specific, but at least for now browsers are
     // the only target envs that have right/middle clicks.
-    if (name === 'click') {
-      if (modifiers.right) {
+    if (modifiers.right) {
+      if (dynamic) {
+        name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
+      } else if (name === 'click') {
         name = 'contextmenu';
         delete modifiers.right;
-      } else if (modifiers.middle) {
+      }
+    } else if (modifiers.middle) {
+      if (dynamic) {
+        name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
+      } else if (name === 'click') {
         name = 'mouseup';
       }
     }
@@ -2762,16 +2786,16 @@
     // check capture modifier
     if (modifiers.capture) {
       delete modifiers.capture;
-      name = '!' + name; // mark the event as captured
+      name = prependModifierMarker('!', name, dynamic);
     }
     if (modifiers.once) {
       delete modifiers.once;
-      name = '~' + name; // mark the event as once
+      name = prependModifierMarker('~', name, dynamic);
     }
     /* istanbul ignore if */
     if (modifiers.passive) {
       delete modifiers.passive;
-      name = '&' + name; // mark the event as passive
+      name = prependModifierMarker('&', name, dynamic);
     }
 
     var events;
@@ -2782,7 +2806,7 @@
       events = el.events || (el.events = {});
     }
 
-    var newHandler = rangeSetItem({ value: value.trim() }, range);
+    var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
     if (modifiers !== emptyObject) {
       newHandler.modifiers = modifiers;
     }
@@ -2852,6 +2876,20 @@
     return val
   }
 
+  function getAndRemoveAttrByRegex (
+    el,
+    name
+  ) {
+    var list = el.attrsList;
+    for (var i = 0, l = list.length; i < l; i++) {
+      var attr = list[i];
+      if (name.test(attr.name)) {
+        list.splice(i, 1);
+        return attr
+      }
+    }
+  }
+
   function rangeSetItem (
     item,
     range
@@ -3748,12 +3786,15 @@
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
+  var dynamicArgRE = /^\[.*\]$/;
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
   var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
+  var slotRE = /^v-slot(:|$)|^#/;
+
   var lineBreakRE = /[\r\n]/;
   var whitespaceRE = /\s+/g;
 
@@ -3768,6 +3809,7 @@
   var platformIsPreTag;
   var platformMustUseProp;
   var platformGetTagNamespace;
+  var maybeComponent;
 
   function createASTElement (
     tag,
@@ -3798,6 +3840,7 @@
     platformMustUseProp = options.mustUseProp || no;
     platformGetTagNamespace = options.getTagNamespace || no;
     var isReservedTag = options.isReservedTag || no;
+    maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
 
     transforms = pluckModuleFunction(options.modules, 'transformNode');
     preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -4279,10 +4322,7 @@
           true
         );
       }
-      el.slotScope = (
-        slotScope ||
-        getAndRemoveAttr(el, 'slot-scope')
-      );
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
       /* istanbul ignore if */
       if (el.attrsMap['v-for']) {
@@ -4301,12 +4341,95 @@
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
       if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
       }
     }
+
+    // 2.6 v-slot syntax
+    {
+      if (el.tag === 'template') {
+        // v-slot on <template>
+        var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+        if (slotBinding) {
+          {
+            if (el.slotTarget || el.slotScope) {
+              warn$1(
+                "Unexpected mixed usage of different slot syntaxes.",
+                el
+              );
+            }
+          }
+          var ref = getSlotName(slotBinding);
+          var name = ref.name;
+          var dynamic = ref.dynamic;
+          el.slotTarget = name;
+          el.slotTargetDynamic = dynamic;
+          el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+        }
+      } else {
+        // v-slot on component, denotes default slot
+        var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
+        if (slotBinding$1) {
+          {
+            if (!maybeComponent(el)) {
+              warn$1(
+                "v-slot can only be used on components or <template>.",
+                slotBinding$1
+              );
+            }
+            if (el.slotScope || el.slotTarget) {
+              warn$1(
+                "Unexpected mixed usage of different slot syntaxes.",
+                el
+              );
+            }
+            if (el.scopedSlots) {
+              warn$1(
+                "To avoid scope ambiguity, the default slot should also use " +
+                "<template> syntax when there are other named slots.",
+                slotBinding$1
+              );
+            }
+          }
+          // add the component's children to its default slot
+          var slots = el.scopedSlots || (el.scopedSlots = {});
+          var ref$1 = getSlotName(slotBinding$1);
+          var name$1 = ref$1.name;
+          var dynamic$1 = ref$1.dynamic;
+          var slotContainer = slots[name$1] = createASTElement('template', [], el);
+          slotContainer.slotTargetDynamic = dynamic$1;
+          slotContainer.children = el.children;
+          slotContainer.slotScope = slotBinding$1.value || "_";
+          // remove children as they are returned from scopedSlots now
+          el.children = [];
+          // mark el non-plain so data gets generated
+          el.plain = false;
+        }
+      }
+    }
+  }
+
+  function getSlotName (binding) {
+    var name = binding.name.replace(slotRE, '');
+    if (!name) {
+      if (binding.name[0] !== '#') {
+        name = 'default';
+      } else {
+        warn$1(
+          "v-slot shorthand syntax requires a slot name.",
+          binding
+        );
+      }
+    }
+    return dynamicArgRE.test(name)
+      // dynamic [name]
+      ? { name: name.slice(1, -1), dynamic: true }
+      // static name
+      : { name: ("\"" + name + "\""), dynamic: false }
   }
 
   // handle <slot/> outlets
@@ -4336,7 +4459,7 @@
 
   function processAttrs (el) {
     var list = el.attrsList;
-    var i, l, name, rawName, value, modifiers, isProp, syncGen;
+    var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
     for (i = 0, l = list.length; i < l; i++) {
       name = rawName = list[i].name;
       value = list[i].value;
@@ -4355,7 +4478,10 @@
         if (bindRE.test(name)) { // v-bind
           name = name.replace(bindRE, '');
           value = parseFilters(value);
-          isProp = false;
+          isDynamic = dynamicArgRE.test(name);
+          if (isDynamic) {
+            name = name.slice(1, -1);
+          }
           if (
             value.trim().length === 0
           ) {
@@ -4364,57 +4490,79 @@
             );
           }
           if (modifiers) {
-            if (modifiers.prop) {
-              isProp = true;
+            if (modifiers.prop && !isDynamic) {
               name = camelize(name);
               if (name === 'innerHtml') { name = 'innerHTML'; }
             }
-            if (modifiers.camel) {
+            if (modifiers.camel && !isDynamic) {
               name = camelize(name);
             }
             if (modifiers.sync) {
               syncGen = genAssignmentCode(value, "$event");
-              addHandler(
-                el,
-                ("update:" + (camelize(name))),
-                syncGen,
-                null,
-                false,
-                warn$1,
-                list[i]
-              );
-              if (hyphenate(name) !== camelize(name)) {
+              if (!isDynamic) {
                 addHandler(
                   el,
-                  ("update:" + (hyphenate(name))),
+                  ("update:" + (camelize(name))),
                   syncGen,
                   null,
                   false,
                   warn$1,
                   list[i]
                 );
+                if (hyphenate(name) !== camelize(name)) {
+                  addHandler(
+                    el,
+                    ("update:" + (hyphenate(name))),
+                    syncGen,
+                    null,
+                    false,
+                    warn$1,
+                    list[i]
+                  );
+                }
+              } else {
+                // handler w/ dynamic event name
+                addHandler(
+                  el,
+                  ("\"update:\"+(" + name + ")"),
+                  syncGen,
+                  null,
+                  false,
+                  warn$1,
+                  list[i],
+                  true // dynamic
+                );
               }
             }
           }
-          if (isProp || (
+          if ((modifiers && modifiers.prop) || (
             !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
           )) {
-            addProp(el, name, value, list[i]);
+            addProp(el, name, value, list[i], isDynamic);
           } else {
-            addAttr(el, name, value, list[i]);
+            addAttr(el, name, value, list[i], isDynamic);
           }
         } else if (onRE.test(name)) { // v-on
           name = name.replace(onRE, '');
-          addHandler(el, name, value, modifiers, false, warn$1, list[i]);
+          isDynamic = dynamicArgRE.test(name);
+          if (isDynamic) {
+            name = name.slice(1, -1);
+          }
+          addHandler(el, name, value, modifiers, false, warn$1, list[i], isDynamic);
         } else { // normal directives
           name = name.replace(dirRE, '');
           // parse arg
           var argMatch = name.match(argRE);
           var arg = argMatch && argMatch[1];
+          isDynamic = false;
           if (arg) {
             name = name.slice(0, -(arg.length + 1));
+            if (dynamicArgRE.test(arg)) {
+              arg = arg.slice(1, -1);
+              isDynamic = true;
+            }
           }
-          addDirective(el, name, rawName, value, arg, modifiers, list[i]);
+          addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
           if (name === 'model') {
             checkForAliasModel(el, value);
           }
@@ -4865,23 +5013,32 @@
     events,
     isNative
   ) {
-    var res = isNative ? 'nativeOn:{' : 'on:{';
+    var prefix = isNative ? 'nativeOn:' : 'on:';
+    var staticHandlers = "";
+    var dynamicHandlers = "";
     for (var name in events) {
-      res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+      var handlerCode = genHandler(events[name]);
+      if (events[name] && events[name].dynamic) {
+        dynamicHandlers += name + "," + handlerCode + ",";
+      } else {
+        staticHandlers += "\"" + name + "\":" + handlerCode + ",";
+      }
+    }
+    staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
+    if (dynamicHandlers) {
+      return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
+    } else {
+      return prefix + staticHandlers
     }
-    return res.slice(0, -1) + '}'
   }
 
-  function genHandler (
-    name,
-    handler
-  ) {
+  function genHandler (handler) {
     if (!handler) {
       return 'function(){}'
     }
 
     if (Array.isArray(handler)) {
-      return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+      return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
     }
 
     var isMethodPath = simplePathRE.test(handler.value);
@@ -4935,7 +5092,7 @@
   }
 
   function genKeyFilter (keys) {
-    return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+    return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
   }
 
   function genFilterCode (key) {
@@ -5197,11 +5354,11 @@
     }
     // attributes
     if (el.attrs) {
-      data += "attrs:{" + (genProps(el.attrs)) + "},";
+      data += "attrs:" + (genProps(el.attrs)) + ",";
     }
     // DOM props
     if (el.props) {
-      data += "domProps:{" + (genProps(el.props)) + "},";
+      data += "domProps:" + (genProps(el.props)) + ",";
     }
     // event handlers
     if (el.events) {
@@ -5231,6 +5388,12 @@
       }
     }
     data = data.replace(/,$/, '') + '}';
+    // v-bind dynamic argument wrap
+    // v-bind with dynamic arguments must be applied using the same v-bind object
+    // merge helper so that class/style/mustUseProp attrs are handled correctly.
+    if (el.dynamicAttrs) {
+      data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
+    }
     // v-bind data wrap
     if (el.wrapData) {
       data = el.wrapData(data);
@@ -5259,7 +5422,7 @@
       }
       if (needRuntime) {
         hasRuntime = true;
-        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
       }
     }
     if (hasRuntime) {
@@ -5285,9 +5448,10 @@
     slots,
     state
   ) {
+    var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
         return genScopedSlot(key, slots[key], state)
-      }).join(',')) + "])")
+      }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
@@ -5432,15 +5596,23 @@
   }
 
   function genProps (props) {
-    var res = '';
+    var staticProps = "";
+    var dynamicProps = "";
     for (var i = 0; i < props.length; i++) {
       var prop = props[i];
-      /* istanbul ignore if */
-      {
-        res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+      var value = transformSpecialNewlines(prop.value);
+      if (prop.dynamic) {
+        dynamicProps += (prop.name) + "," + value + ",";
+      } else {
+        staticProps += "\"" + (prop.name) + "\":" + value + ",";
       }
     }
-    return res.slice(0, -1)
+    staticProps = "{" + (staticProps.slice(0, -1)) + "}";
+    if (dynamicProps) {
+      return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
+    } else {
+      return staticProps
+    }
   }
 
   // #3895, #4268
@@ -6949,13 +7121,14 @@
 
   function resolveScopedSlots (
     fns, // see flow/vnode
+    hasDynamicKeys,
     res
   ) {
-    res = res || {};
+    res = res || { $stable: !hasDynamicKeys };
     for (var i = 0; i < fns.length; i++) {
       var slot = fns[i];
       if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, res);
+        resolveScopedSlots(slot, hasDynamicKeys, res);
       } else {
         res[slot.key] = slot.fn;
       }
@@ -6976,12 +7149,22 @@
   ) {
 
     // determine whether component has slot children
-    // we need to do this before overwriting $options._renderChildren
-    var hasChildren = !!(
+    // we need to do this before overwriting $options._renderChildren.
+
+    // check if there are dynamic scopedSlots (hand-written or compiled but with
+    // dynamic slot names). Static scoped slots compiled from template has the
+    // "$stable" marker.
+    var hasDynamicScopedSlot = !!(
+      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    );
+    // Any static slot children from the parent may have changed during parent's
+    // update. Dynamic scoped slots may also have changed. In such cases, a forced
+    // update is necessary to ensure correctness.
+    var needsForceUpdate = !!(
       renderChildren ||               // has new static slots
       vm.$options._renderChildren ||  // has old static slots
-      parentVnode.data.scopedSlots || // has new scoped slots
-      vm.$scopedSlots !== emptyObject // has old scoped slots
+      hasDynamicScopedSlot
     );
 
     vm.$options._parentVnode = parentVnode;
@@ -7020,7 +7203,7 @@
     updateComponentListeners(vm, listeners, oldListeners);
 
     // resolve slots + force update if has children
-    if (hasChildren) {
+    if (needsForceUpdate) {
       vm.$slots = resolveSlots(renderChildren, parentVnode.context);
       vm.$forceUpdate();
     }
@@ -7085,6 +7268,20 @@
 
   /*  */
 
+  // Async edge case fix requires storing an event listener's attach timestamp.
+  var getNow = Date.now;
+
+  // Determine what event timestamp the browser is using. Annoyingly, the
+  // timestamp can either be hi-res ( relative to poge load) or low-res
+  // (relative to UNIX epoch), so in order to compare time we have to use the
+  // same timestamp type when saving the flush timestamp.
+  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+    // if the low-res timestamp which is bigger than the event timestamp
+    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listeners as well.
+    getNow = function () { return performance.now(); };
+  }
+
   /**
    * Queue a kept-alive component that was activated during patch.
    * The queue will be processed after the entire tree has been patched.
@@ -7495,6 +7692,31 @@
 
   /*  */
 
+  function bindDynamicKeys (baseObj, values) {
+    for (var i = 0; i < values.length; i += 2) {
+      var key = values[i];
+      if (typeof key === 'string' && key) {
+        baseObj[values[i]] = values[i + 1];
+      } else if (key !== '' && key !== null) {
+        // null is a speical value for explicitly removing a binding
+        warn(
+          ("Invalid value for dynamic directive argument (expected string or null): " + key),
+          this
+        );
+      }
+    }
+    return baseObj
+  }
+
+  // helper to dynamically append modifier runtime markers to event names.
+  // ensure only append when value is already string, otherwise it will be cast
+  // to string and cause the type check to miss.
+  function prependModifier (value, symbol) {
+    return typeof value === 'string' ? symbol + value : value
+  }
+
+  /*  */
+
   function installRenderHelpers (target) {
     target._o = markOnce;
     target._n = toNumber;
@@ -7511,6 +7733,8 @@
     target._e = createEmptyVNode;
     target._u = resolveScopedSlots;
     target._g = bindObjectListeners;
+    target._d = bindDynamicKeys;
+    target._p = prependModifier;
   }
 
   /*  */
@@ -7527,7 +7751,7 @@
     } else {
       res = {};
       for (var key in slots) {
-        if (slots[key]) {
+        if (slots[key] && key[0] !== '$') {
           res[key] = normalizeScopedSlot(slots[key]);
         }
       }
@@ -7539,6 +7763,7 @@
       }
     }
     res._normalized = true;
+    res.$stable = slots && slots.$stable;
     return res
   }
 
@@ -8039,8 +8264,8 @@
     }
   };
 
-  function waitForSsrPrefetch (vm, resolve, reject) {
-    var handlers = vm.$options.ssrPrefetch;
+  function waitForServerPrefetch (vm, resolve, reject) {
+    var handlers = vm.$options.serverPrefetch;
     if (isDef(handlers)) {
       if (!Array.isArray(handlers)) { handlers = [handlers]; }
       try {
@@ -8196,7 +8421,7 @@
 
     var reject = context.done;
 
-    waitForSsrPrefetch(child, resolve, reject);
+    waitForServerPrefetch(child, resolve, reject);
   }
 
   function renderAsyncComponent (node, isRoot, context) {
@@ -8428,7 +8653,7 @@
       var resolve = function () {
         renderNode(component._render(), true, context);
       };
-      waitForSsrPrefetch(component, resolve, done);
+      waitForServerPrefetch(component, resolve, done);
     }
   }
 
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index f10ebafc1d2..cdc4c22e3dd 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -773,7 +773,7 @@ var LIFECYCLE_HOOKS = [
   'activated',
   'deactivated',
   'errorCaptured',
-  'ssrPrefetch'
+  'serverPrefetch'
 ];
 
 /*  */
@@ -2790,13 +2790,16 @@ function pluckModuleFunction (
     : []
 }
 
-function addProp (el, name, value, range) {
-  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
+function addProp (el, name, value, range, dynamic) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
   el.plain = false;
 }
 
-function addAttr (el, name, value, range) {
-  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
+function addAttr (el, name, value, range, dynamic) {
+  var attrs = dynamic
+    ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+    : (el.attrs || (el.attrs = []));
+  attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
   el.plain = false;
 }
 
@@ -2812,13 +2815,27 @@ function addDirective (
   rawName,
   value,
   arg,
+  isDynamicArg,
   modifiers,
   range
 ) {
-  (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
+  (el.directives || (el.directives = [])).push(rangeSetItem({
+    name: name,
+    rawName: rawName,
+    value: value,
+    arg: arg,
+    isDynamicArg: isDynamicArg,
+    modifiers: modifiers
+  }, range));
   el.plain = false;
 }
 
+function prependModifierMarker (symbol, name, dynamic) {
+  return dynamic
+    ? ("_p(" + name + ",\"" + symbol + "\")")
+    : symbol + name // mark the event as captured
+}
+
 function addHandler (
   el,
   name,
@@ -2826,7 +2843,8 @@ function addHandler (
   modifiers,
   important,
   warn,
-  range
+  range,
+  dynamic
 ) {
   modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
@@ -2845,11 +2863,17 @@ function addHandler (
   // normalize click.right and click.middle since they don't actually fire
   // this is technically browser-specific, but at least for now browsers are
   // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
+  if (modifiers.right) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
+    } else if (name === 'click') {
       name = 'contextmenu';
       delete modifiers.right;
-    } else if (modifiers.middle) {
+    }
+  } else if (modifiers.middle) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
+    } else if (name === 'click') {
       name = 'mouseup';
     }
   }
@@ -2857,16 +2881,16 @@ function addHandler (
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
+    name = prependModifierMarker('!', name, dynamic);
   }
   if (modifiers.once) {
     delete modifiers.once;
-    name = '~' + name; // mark the event as once
+    name = prependModifierMarker('~', name, dynamic);
   }
   /* istanbul ignore if */
   if (modifiers.passive) {
     delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
+    name = prependModifierMarker('&', name, dynamic);
   }
 
   var events;
@@ -2877,7 +2901,7 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = rangeSetItem({ value: value.trim() }, range);
+  var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -2947,6 +2971,20 @@ function getAndRemoveAttr (
   return val
 }
 
+function getAndRemoveAttrByRegex (
+  el,
+  name
+) {
+  var list = el.attrsList;
+  for (var i = 0, l = list.length; i < l; i++) {
+    var attr = list[i];
+    if (name.test(attr.name)) {
+      list.splice(i, 1);
+      return attr
+    }
+  }
+}
+
 function rangeSetItem (
   item,
   range
@@ -3498,12 +3536,15 @@ var dirRE = /^v-|^@|^:|^\./;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
+var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
 var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
+var slotRE = /^v-slot(:|$)|^#/;
+
 var lineBreakRE = /[\r\n]/;
 var whitespaceRE = /\s+/g;
 
@@ -3518,6 +3559,7 @@ var postTransforms;
 var platformIsPreTag;
 var platformMustUseProp;
 var platformGetTagNamespace;
+var maybeComponent;
 
 function createASTElement (
   tag,
@@ -3548,6 +3590,7 @@ function parse (
   platformMustUseProp = options.mustUseProp || no;
   platformGetTagNamespace = options.getTagNamespace || no;
   var isReservedTag = options.isReservedTag || no;
+  maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
 
   transforms = pluckModuleFunction(options.modules, 'transformNode');
   preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -4029,10 +4072,7 @@ function processSlotContent (el) {
         true
       );
     }
-    el.slotScope = (
-      slotScope ||
-      getAndRemoveAttr(el, 'slot-scope')
-    );
+    el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
   } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
     /* istanbul ignore if */
     if (el.attrsMap['v-for']) {
@@ -4051,12 +4091,95 @@ function processSlotContent (el) {
   var slotTarget = getBindingAttr(el, 'slot');
   if (slotTarget) {
     el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
     // preserve slot as an attribute for native shadow DOM compat
     // only for non-scoped slots.
     if (el.tag !== 'template' && !el.slotScope) {
       addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
     }
   }
+
+  // 2.6 v-slot syntax
+  {
+    if (el.tag === 'template') {
+      // v-slot on <template>
+      var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding) {
+        {
+          if (el.slotTarget || el.slotScope) {
+            warn$1(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+        }
+        var ref = getSlotName(slotBinding);
+        var name = ref.name;
+        var dynamic = ref.dynamic;
+        el.slotTarget = name;
+        el.slotTargetDynamic = dynamic;
+        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+      }
+    } else {
+      // v-slot on component, denotes default slot
+      var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding$1) {
+        {
+          if (!maybeComponent(el)) {
+            warn$1(
+              "v-slot can only be used on components or <template>.",
+              slotBinding$1
+            );
+          }
+          if (el.slotScope || el.slotTarget) {
+            warn$1(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+          if (el.scopedSlots) {
+            warn$1(
+              "To avoid scope ambiguity, the default slot should also use " +
+              "<template> syntax when there are other named slots.",
+              slotBinding$1
+            );
+          }
+        }
+        // add the component's children to its default slot
+        var slots = el.scopedSlots || (el.scopedSlots = {});
+        var ref$1 = getSlotName(slotBinding$1);
+        var name$1 = ref$1.name;
+        var dynamic$1 = ref$1.dynamic;
+        var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTargetDynamic = dynamic$1;
+        slotContainer.children = el.children;
+        slotContainer.slotScope = slotBinding$1.value || "_";
+        // remove children as they are returned from scopedSlots now
+        el.children = [];
+        // mark el non-plain so data gets generated
+        el.plain = false;
+      }
+    }
+  }
+}
+
+function getSlotName (binding) {
+  var name = binding.name.replace(slotRE, '');
+  if (!name) {
+    if (binding.name[0] !== '#') {
+      name = 'default';
+    } else {
+      warn$1(
+        "v-slot shorthand syntax requires a slot name.",
+        binding
+      );
+    }
+  }
+  return dynamicArgRE.test(name)
+    // dynamic [name]
+    ? { name: name.slice(1, -1), dynamic: true }
+    // static name
+    : { name: ("\"" + name + "\""), dynamic: false }
 }
 
 // handle <slot/> outlets
@@ -4086,7 +4209,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp, syncGen;
+  var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name;
     value = list[i].value;
@@ -4105,7 +4228,10 @@ function processAttrs (el) {
       if (bindRE.test(name)) { // v-bind
         name = name.replace(bindRE, '');
         value = parseFilters(value);
-        isProp = false;
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
         if (
           value.trim().length === 0
         ) {
@@ -4114,57 +4240,79 @@ function processAttrs (el) {
           );
         }
         if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
+          if (modifiers.prop && !isDynamic) {
             name = camelize(name);
             if (name === 'innerHtml') { name = 'innerHTML'; }
           }
-          if (modifiers.camel) {
+          if (modifiers.camel && !isDynamic) {
             name = camelize(name);
           }
           if (modifiers.sync) {
             syncGen = genAssignmentCode(value, "$event");
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              syncGen,
-              null,
-              false,
-              warn$1,
-              list[i]
-            );
-            if (hyphenate(name) !== camelize(name)) {
+            if (!isDynamic) {
               addHandler(
                 el,
-                ("update:" + (hyphenate(name))),
+                ("update:" + (camelize(name))),
                 syncGen,
                 null,
                 false,
                 warn$1,
                 list[i]
               );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  ("update:" + (hyphenate(name))),
+                  syncGen,
+                  null,
+                  false,
+                  warn$1,
+                  list[i]
+                );
+              }
+            } else {
+              // handler w/ dynamic event name
+              addHandler(
+                el,
+                ("\"update:\"+(" + name + ")"),
+                syncGen,
+                null,
+                false,
+                warn$1,
+                list[i],
+                true // dynamic
+              );
             }
           }
         }
-        if (isProp || (
+        if ((modifiers && modifiers.prop) || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value, list[i]);
+          addProp(el, name, value, list[i], isDynamic);
         } else {
-          addAttr(el, name, value, list[i]);
+          addAttr(el, name, value, list[i], isDynamic);
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$1, list[i]);
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
+        addHandler(el, name, value, modifiers, false, warn$1, list[i], isDynamic);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
         var argMatch = name.match(argRE);
         var arg = argMatch && argMatch[1];
+        isDynamic = false;
         if (arg) {
           name = name.slice(0, -(arg.length + 1));
+          if (dynamicArgRE.test(arg)) {
+            arg = arg.slice(1, -1);
+            isDynamic = true;
+          }
         }
-        addDirective(el, name, rawName, value, arg, modifiers, list[i]);
+        addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
         if (name === 'model') {
           checkForAliasModel(el, value);
         }
@@ -4615,23 +4763,32 @@ function genHandlers (
   events,
   isNative
 ) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
+  var prefix = isNative ? 'nativeOn:' : 'on:';
+  var staticHandlers = "";
+  var dynamicHandlers = "";
   for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+    var handlerCode = genHandler(events[name]);
+    if (events[name] && events[name].dynamic) {
+      dynamicHandlers += name + "," + handlerCode + ",";
+    } else {
+      staticHandlers += "\"" + name + "\":" + handlerCode + ",";
+    }
+  }
+  staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
+  if (dynamicHandlers) {
+    return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
+  } else {
+    return prefix + staticHandlers
   }
-  return res.slice(0, -1) + '}'
 }
 
-function genHandler (
-  name,
-  handler
-) {
+function genHandler (handler) {
   if (!handler) {
     return 'function(){}'
   }
 
   if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+    return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
   }
 
   var isMethodPath = simplePathRE.test(handler.value);
@@ -4685,7 +4842,7 @@ function genHandler (
 }
 
 function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
 }
 
 function genFilterCode (key) {
@@ -4947,11 +5104,11 @@ function genData$2 (el, state) {
   }
   // attributes
   if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
+    data += "attrs:" + (genProps(el.attrs)) + ",";
   }
   // DOM props
   if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
+    data += "domProps:" + (genProps(el.props)) + ",";
   }
   // event handlers
   if (el.events) {
@@ -4981,6 +5138,12 @@ function genData$2 (el, state) {
     }
   }
   data = data.replace(/,$/, '') + '}';
+  // v-bind dynamic argument wrap
+  // v-bind with dynamic arguments must be applied using the same v-bind object
+  // merge helper so that class/style/mustUseProp attrs are handled correctly.
+  if (el.dynamicAttrs) {
+    data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
+  }
   // v-bind data wrap
   if (el.wrapData) {
     data = el.wrapData(data);
@@ -5009,7 +5172,7 @@ function genDirectives (el, state) {
     }
     if (needRuntime) {
       hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
     }
   }
   if (hasRuntime) {
@@ -5035,9 +5198,10 @@ function genScopedSlots (
   slots,
   state
 ) {
+  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
       return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
+    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
@@ -5182,15 +5346,23 @@ function genComponent (
 }
 
 function genProps (props) {
-  var res = '';
+  var staticProps = "";
+  var dynamicProps = "";
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    var value = transformSpecialNewlines(prop.value);
+    if (prop.dynamic) {
+      dynamicProps += (prop.name) + "," + value + ",";
+    } else {
+      staticProps += "\"" + (prop.name) + "\":" + value + ",";
     }
   }
-  return res.slice(0, -1)
+  staticProps = "{" + (staticProps.slice(0, -1)) + "}";
+  if (dynamicProps) {
+    return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
+  } else {
+    return staticProps
+  }
 }
 
 // #3895, #4268
@@ -6699,13 +6871,14 @@ function isWhitespace (node) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  hasDynamicKeys,
   res
 ) {
-  res = res || {};
+  res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, res);
+      resolveScopedSlots(slot, hasDynamicKeys, res);
     } else {
       res[slot.key] = slot.fn;
     }
@@ -6726,12 +6899,22 @@ function updateChildComponent (
 ) {
 
   // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren
-  var hasChildren = !!(
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
     renderChildren ||               // has new static slots
     vm.$options._renderChildren ||  // has old static slots
-    parentVnode.data.scopedSlots || // has new scoped slots
-    vm.$scopedSlots !== emptyObject // has old scoped slots
+    hasDynamicScopedSlot
   );
 
   vm.$options._parentVnode = parentVnode;
@@ -6770,7 +6953,7 @@ function updateChildComponent (
   updateComponentListeners(vm, listeners, oldListeners);
 
   // resolve slots + force update if has children
-  if (hasChildren) {
+  if (needsForceUpdate) {
     vm.$slots = resolveSlots(renderChildren, parentVnode.context);
     vm.$forceUpdate();
   }
@@ -6835,6 +7018,20 @@ function callHook (vm, hook) {
 
 /*  */
 
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res ( relative to poge load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
+
 /**
  * Queue a kept-alive component that was activated during patch.
  * The queue will be processed after the entire tree has been patched.
@@ -7245,6 +7442,31 @@ function bindObjectListeners (data, value) {
 
 /*  */
 
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
+}
+
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
 function installRenderHelpers (target) {
   target._o = markOnce;
   target._n = toNumber;
@@ -7261,6 +7483,8 @@ function installRenderHelpers (target) {
   target._e = createEmptyVNode;
   target._u = resolveScopedSlots;
   target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
 }
 
 /*  */
@@ -7277,7 +7501,7 @@ function normalizeScopedSlots (
   } else {
     res = {};
     for (var key in slots) {
-      if (slots[key]) {
+      if (slots[key] && key[0] !== '$') {
         res[key] = normalizeScopedSlot(slots[key]);
       }
     }
@@ -7289,6 +7513,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
+  res.$stable = slots && slots.$stable;
   return res
 }
 
@@ -7789,8 +8014,8 @@ var normalizeRender = function (vm) {
   }
 };
 
-function waitForSsrPrefetch (vm, resolve, reject) {
-  var handlers = vm.$options.ssrPrefetch;
+function waitForServerPrefetch (vm, resolve, reject) {
+  var handlers = vm.$options.serverPrefetch;
   if (isDef(handlers)) {
     if (!Array.isArray(handlers)) { handlers = [handlers]; }
     try {
@@ -7946,7 +8171,7 @@ function renderComponentInner (node, isRoot, context) {
 
   var reject = context.done;
 
-  waitForSsrPrefetch(child, resolve, reject);
+  waitForServerPrefetch(child, resolve, reject);
 }
 
 function renderAsyncComponent (node, isRoot, context) {
@@ -8178,7 +8403,7 @@ function createRenderFunction (
     var resolve = function () {
       renderNode(component._render(), true, context);
     };
-    waitForSsrPrefetch(component, resolve, done);
+    waitForServerPrefetch(component, resolve, done);
   }
 }
 
@@ -8397,8 +8622,12 @@ var TemplateRenderer = function TemplateRenderer (options) {
   this.inject = options.inject !== false;
   // if no template option is provided, the renderer is created
   // as a utility object for rendering assets like preload links and scripts.
-  this.parsedTemplate = options.template
-    ? parseTemplate(options.template)
+    
+  var template = options.template;
+  this.parsedTemplate = template
+    ? typeof template === 'string'
+      ? parseTemplate(template)
+      : template
     : null;
 
   // function used to serialize initial state JSON
@@ -8431,12 +8660,17 @@ TemplateRenderer.prototype.bindRenderFns = function bindRenderFns (context) {
 };
 
 // render synchronously given rendered app content and render context
-TemplateRenderer.prototype.renderSync = function renderSync (content, context) {
+TemplateRenderer.prototype.render = function render (content, context) {
   var template = this.parsedTemplate;
   if (!template) {
-    throw new Error('renderSync cannot be called without a template.')
+    throw new Error('render cannot be called without a template.')
   }
   context = context || {};
+
+  if (typeof template === 'function') {
+    return template(content, context)
+  }
+
   if (this.inject) {
     return (
       template.head(context) +
@@ -8695,14 +8929,26 @@ function createRenderer (ref) {
       }, cb);
       try {
         render(component, write, context, function (err) {
+          if (err) {
+            return cb(err)
+          }
           if (context && context.rendered) {
             context.rendered(context);
           }
           if (template) {
-            result = templateRenderer.renderSync(result, context);
-          }
-          if (err) {
-            cb(err);
+            try {
+              var res = templateRenderer.render(result, context);
+              if (typeof res !== 'string') {
+                // function template returning promise
+                res
+                  .then(function (html) { return cb(null, html); })
+                  .catch(cb);
+              } else {
+                cb(null, res);
+              }
+            } catch (e) {
+              cb(e);
+            }
           } else {
             cb(null, result);
           }
@@ -8732,6 +8978,8 @@ function createRenderer (ref) {
           });
         }
         return renderStream
+      } else if (typeof template === 'function') {
+        throw new Error("function template is only supported in renderToString.")
       } else {
         var templateStream = templateRenderer.createStream(context);
         renderStream.on('error', function (err) {
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 14385377519..ab8c3504dee 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e,t=(e=require("he"))&&"object"==typeof e&&"default"in e?e.default:e,r=Object.freeze({});function n(e){return null==e}function i(e){return null!=e}function o(e){return!0===e}function a(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function s(e){return null!==e&&"object"==typeof e}var c=Object.prototype.toString;function u(e){return"[object Object]"===c.call(e)}function l(e){return i(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function f(e){return null==e?"":Array.isArray(e)||u(e)&&e.toString===c?JSON.stringify(e,null,2):String(e)}function p(e){var t=parseFloat(e);return isNaN(t)?e:t}function d(e,t){for(var r=Object.create(null),n=e.split(","),i=0;i<n.length;i++)r[n[i]]=!0;return t?function(e){return r[e.toLowerCase()]}:function(e){return r[e]}}var v=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(r){return t[r]||(t[r]=e(r))}}var b=/-(\w)/g,_=g(function(e){return e.replace(b,function(e,t){return t?t.toUpperCase():""})}),x=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),w=/\B([A-Z])/g,S=g(function(e){return e.replace(w,"-$1").toLowerCase()});Function.prototype.bind;function $(e,t){for(var r in t)e[r]=t[r];return e}function A(e){for(var t={},r=0;r<e.length;r++)e[r]&&$(t,e[r]);return t}function O(e,t,r){}var k=function(e,t,r){return!1},C=function(e){return e};function T(e,t){if(e===t)return!0;var r=s(e),n=s(t);if(!r||!n)return!r&&!n&&String(e)===String(t);try{var i=Array.isArray(e),o=Array.isArray(t);if(i&&o)return e.length===t.length&&e.every(function(e,r){return T(e,t[r])});if(e instanceof Date&&t instanceof Date)return e.getTime()===t.getTime();if(i||o)return!1;var a=Object.keys(e),c=Object.keys(t);return a.length===c.length&&a.every(function(r){return T(e[r],t[r])})}catch(e){return!1}}function j(e,t){for(var r=0;r<e.length;r++)if(T(e[r],t))return r;return-1}function F(e){var t=!1;return function(){t||(t=!0,e.apply(this,arguments))}}var 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Promise(function(r){t._registeredComponents=new Set;var n=a(e,po(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?po():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var mo=require("source-map").SourceMapConsumer,yo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function go(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(yo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(yo,c)}return e}return e}(e,t)}).join("\n"))}var bo=require("fs"),_o=require("path"),wo=require("stream").PassThrough,xo="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function So(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=Xi(t,r,n,a),p=new oo({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=Qi()).promise,r=n.cb);var a="",s=dt(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new vt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:st,canBeLeftOpenTag:ct,modules:nt,directives:$(at,e.directives)}))}process.env.VUE_ENV="server";var $o=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&_o.isAbsolute(t)){if(!bo.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||_o.dirname(t),t=bo.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new mo(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(xo)}else{if("string"!=typeof t)throw new Error(xo);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=ho(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=Qi()).promise,t=r.cb),u(e).catch(function(e){go(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){go(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new wo;return u(e).catch(function(e){go(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){go(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(So);exports.createRenderer=So,exports.createBundleRenderer=$o;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 66de323391d..699c7e2eba3 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.0-beta.1",
+  "version": "2.6.0-beta.2",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 4b240cdd647..304cd9f70dd 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -829,7 +829,7 @@
     'activated',
     'deactivated',
     'errorCaptured',
-    'ssrPrefetch'
+    'serverPrefetch'
   ];
 
   /*  */
@@ -1915,13 +1915,16 @@
       : []
   }
 
-  function addProp (el, name, value, range) {
-    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
+  function addProp (el, name, value, range, dynamic) {
+    (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
     el.plain = false;
   }
 
-  function addAttr (el, name, value, range) {
-    (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
+  function addAttr (el, name, value, range, dynamic) {
+    var attrs = dynamic
+      ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+      : (el.attrs || (el.attrs = []));
+    attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
     el.plain = false;
   }
 
@@ -1937,13 +1940,27 @@
     rawName,
     value,
     arg,
+    isDynamicArg,
     modifiers,
     range
   ) {
-    (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
+    (el.directives || (el.directives = [])).push(rangeSetItem({
+      name: name,
+      rawName: rawName,
+      value: value,
+      arg: arg,
+      isDynamicArg: isDynamicArg,
+      modifiers: modifiers
+    }, range));
     el.plain = false;
   }
 
+  function prependModifierMarker (symbol, name, dynamic) {
+    return dynamic
+      ? ("_p(" + name + ",\"" + symbol + "\")")
+      : symbol + name // mark the event as captured
+  }
+
   function addHandler (
     el,
     name,
@@ -1951,7 +1968,8 @@
     modifiers,
     important,
     warn,
-    range
+    range,
+    dynamic
   ) {
     modifiers = modifiers || emptyObject;
     // warn prevent and passive modifier
@@ -1970,11 +1988,17 @@
     // normalize click.right and click.middle since they don't actually fire
     // this is technically browser-specific, but at least for now browsers are
     // the only target envs that have right/middle clicks.
-    if (name === 'click') {
-      if (modifiers.right) {
+    if (modifiers.right) {
+      if (dynamic) {
+        name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
+      } else if (name === 'click') {
         name = 'contextmenu';
         delete modifiers.right;
-      } else if (modifiers.middle) {
+      }
+    } else if (modifiers.middle) {
+      if (dynamic) {
+        name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
+      } else if (name === 'click') {
         name = 'mouseup';
       }
     }
@@ -1982,16 +2006,16 @@
     // check capture modifier
     if (modifiers.capture) {
       delete modifiers.capture;
-      name = '!' + name; // mark the event as captured
+      name = prependModifierMarker('!', name, dynamic);
     }
     if (modifiers.once) {
       delete modifiers.once;
-      name = '~' + name; // mark the event as once
+      name = prependModifierMarker('~', name, dynamic);
     }
     /* istanbul ignore if */
     if (modifiers.passive) {
       delete modifiers.passive;
-      name = '&' + name; // mark the event as passive
+      name = prependModifierMarker('&', name, dynamic);
     }
 
     var events;
@@ -2002,7 +2026,7 @@
       events = el.events || (el.events = {});
     }
 
-    var newHandler = rangeSetItem({ value: value.trim() }, range);
+    var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
     if (modifiers !== emptyObject) {
       newHandler.modifiers = modifiers;
     }
@@ -2072,6 +2096,20 @@
     return val
   }
 
+  function getAndRemoveAttrByRegex (
+    el,
+    name
+  ) {
+    var list = el.attrsList;
+    for (var i = 0, l = list.length; i < l; i++) {
+      var attr = list[i];
+      if (name.test(attr.name)) {
+        list.splice(i, 1);
+        return attr
+      }
+    }
+  }
+
   function rangeSetItem (
     item,
     range
@@ -2690,12 +2728,15 @@
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
+  var dynamicArgRE = /^\[.*\]$/;
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
   var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
+  var slotRE = /^v-slot(:|$)|^#/;
+
   var lineBreakRE = /[\r\n]/;
   var whitespaceRE = /\s+/g;
 
@@ -2710,6 +2751,7 @@
   var platformIsPreTag;
   var platformMustUseProp;
   var platformGetTagNamespace;
+  var maybeComponent;
 
   function createASTElement (
     tag,
@@ -2740,6 +2782,7 @@
     platformMustUseProp = options.mustUseProp || no;
     platformGetTagNamespace = options.getTagNamespace || no;
     var isReservedTag = options.isReservedTag || no;
+    maybeComponent = function (el) { return !!el.component || !isReservedTag(el.tag); };
 
     transforms = pluckModuleFunction(options.modules, 'transformNode');
     preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
@@ -3221,10 +3264,7 @@
           true
         );
       }
-      el.slotScope = (
-        slotScope ||
-        getAndRemoveAttr(el, 'slot-scope')
-      );
+      el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
     } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
       /* istanbul ignore if */
       if (el.attrsMap['v-for']) {
@@ -3243,12 +3283,95 @@
     var slotTarget = getBindingAttr(el, 'slot');
     if (slotTarget) {
       el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+      el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
       // preserve slot as an attribute for native shadow DOM compat
       // only for non-scoped slots.
       if (el.tag !== 'template' && !el.slotScope) {
         addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
       }
     }
+
+    // 2.6 v-slot syntax
+    {
+      if (el.tag === 'template') {
+        // v-slot on <template>
+        var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+        if (slotBinding) {
+          {
+            if (el.slotTarget || el.slotScope) {
+              warn$1(
+                "Unexpected mixed usage of different slot syntaxes.",
+                el
+              );
+            }
+          }
+          var ref = getSlotName(slotBinding);
+          var name = ref.name;
+          var dynamic = ref.dynamic;
+          el.slotTarget = name;
+          el.slotTargetDynamic = dynamic;
+          el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+        }
+      } else {
+        // v-slot on component, denotes default slot
+        var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
+        if (slotBinding$1) {
+          {
+            if (!maybeComponent(el)) {
+              warn$1(
+                "v-slot can only be used on components or <template>.",
+                slotBinding$1
+              );
+            }
+            if (el.slotScope || el.slotTarget) {
+              warn$1(
+                "Unexpected mixed usage of different slot syntaxes.",
+                el
+              );
+            }
+            if (el.scopedSlots) {
+              warn$1(
+                "To avoid scope ambiguity, the default slot should also use " +
+                "<template> syntax when there are other named slots.",
+                slotBinding$1
+              );
+            }
+          }
+          // add the component's children to its default slot
+          var slots = el.scopedSlots || (el.scopedSlots = {});
+          var ref$1 = getSlotName(slotBinding$1);
+          var name$1 = ref$1.name;
+          var dynamic$1 = ref$1.dynamic;
+          var slotContainer = slots[name$1] = createASTElement('template', [], el);
+          slotContainer.slotTargetDynamic = dynamic$1;
+          slotContainer.children = el.children;
+          slotContainer.slotScope = slotBinding$1.value || "_";
+          // remove children as they are returned from scopedSlots now
+          el.children = [];
+          // mark el non-plain so data gets generated
+          el.plain = false;
+        }
+      }
+    }
+  }
+
+  function getSlotName (binding) {
+    var name = binding.name.replace(slotRE, '');
+    if (!name) {
+      if (binding.name[0] !== '#') {
+        name = 'default';
+      } else {
+        warn$1(
+          "v-slot shorthand syntax requires a slot name.",
+          binding
+        );
+      }
+    }
+    return dynamicArgRE.test(name)
+      // dynamic [name]
+      ? { name: name.slice(1, -1), dynamic: true }
+      // static name
+      : { name: ("\"" + name + "\""), dynamic: false }
   }
 
   // handle <slot/> outlets
@@ -3278,7 +3401,7 @@
 
   function processAttrs (el) {
     var list = el.attrsList;
-    var i, l, name, rawName, value, modifiers, isProp, syncGen;
+    var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
     for (i = 0, l = list.length; i < l; i++) {
       name = rawName = list[i].name;
       value = list[i].value;
@@ -3297,7 +3420,10 @@
         if (bindRE.test(name)) { // v-bind
           name = name.replace(bindRE, '');
           value = parseFilters(value);
-          isProp = false;
+          isDynamic = dynamicArgRE.test(name);
+          if (isDynamic) {
+            name = name.slice(1, -1);
+          }
           if (
             value.trim().length === 0
           ) {
@@ -3306,57 +3432,79 @@
             );
           }
           if (modifiers) {
-            if (modifiers.prop) {
-              isProp = true;
+            if (modifiers.prop && !isDynamic) {
               name = camelize(name);
               if (name === 'innerHtml') { name = 'innerHTML'; }
             }
-            if (modifiers.camel) {
+            if (modifiers.camel && !isDynamic) {
               name = camelize(name);
             }
             if (modifiers.sync) {
               syncGen = genAssignmentCode(value, "$event");
-              addHandler(
-                el,
-                ("update:" + (camelize(name))),
-                syncGen,
-                null,
-                false,
-                warn$1,
-                list[i]
-              );
-              if (hyphenate(name) !== camelize(name)) {
+              if (!isDynamic) {
                 addHandler(
                   el,
-                  ("update:" + (hyphenate(name))),
+                  ("update:" + (camelize(name))),
                   syncGen,
                   null,
                   false,
                   warn$1,
                   list[i]
                 );
+                if (hyphenate(name) !== camelize(name)) {
+                  addHandler(
+                    el,
+                    ("update:" + (hyphenate(name))),
+                    syncGen,
+                    null,
+                    false,
+                    warn$1,
+                    list[i]
+                  );
+                }
+              } else {
+                // handler w/ dynamic event name
+                addHandler(
+                  el,
+                  ("\"update:\"+(" + name + ")"),
+                  syncGen,
+                  null,
+                  false,
+                  warn$1,
+                  list[i],
+                  true // dynamic
+                );
               }
             }
           }
-          if (isProp || (
+          if ((modifiers && modifiers.prop) || (
             !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
           )) {
-            addProp(el, name, value, list[i]);
+            addProp(el, name, value, list[i], isDynamic);
           } else {
-            addAttr(el, name, value, list[i]);
+            addAttr(el, name, value, list[i], isDynamic);
           }
         } else if (onRE.test(name)) { // v-on
           name = name.replace(onRE, '');
-          addHandler(el, name, value, modifiers, false, warn$1, list[i]);
+          isDynamic = dynamicArgRE.test(name);
+          if (isDynamic) {
+            name = name.slice(1, -1);
+          }
+          addHandler(el, name, value, modifiers, false, warn$1, list[i], isDynamic);
         } else { // normal directives
           name = name.replace(dirRE, '');
           // parse arg
           var argMatch = name.match(argRE);
           var arg = argMatch && argMatch[1];
+          isDynamic = false;
           if (arg) {
             name = name.slice(0, -(arg.length + 1));
+            if (dynamicArgRE.test(arg)) {
+              arg = arg.slice(1, -1);
+              isDynamic = true;
+            }
           }
-          addDirective(el, name, rawName, value, arg, modifiers, list[i]);
+          addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
           if (name === 'model') {
             checkForAliasModel(el, value);
           }
@@ -3934,23 +4082,32 @@
     events,
     isNative
   ) {
-    var res = isNative ? 'nativeOn:{' : 'on:{';
+    var prefix = isNative ? 'nativeOn:' : 'on:';
+    var staticHandlers = "";
+    var dynamicHandlers = "";
     for (var name in events) {
-      res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+      var handlerCode = genHandler(events[name]);
+      if (events[name] && events[name].dynamic) {
+        dynamicHandlers += name + "," + handlerCode + ",";
+      } else {
+        staticHandlers += "\"" + name + "\":" + handlerCode + ",";
+      }
+    }
+    staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
+    if (dynamicHandlers) {
+      return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
+    } else {
+      return prefix + staticHandlers
     }
-    return res.slice(0, -1) + '}'
   }
 
-  function genHandler (
-    name,
-    handler
-  ) {
+  function genHandler (handler) {
     if (!handler) {
       return 'function(){}'
     }
 
     if (Array.isArray(handler)) {
-      return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+      return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
     }
 
     var isMethodPath = simplePathRE.test(handler.value);
@@ -4004,7 +4161,7 @@
   }
 
   function genKeyFilter (keys) {
-    return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+    return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
   }
 
   function genFilterCode (key) {
@@ -4266,11 +4423,11 @@
     }
     // attributes
     if (el.attrs) {
-      data += "attrs:{" + (genProps(el.attrs)) + "},";
+      data += "attrs:" + (genProps(el.attrs)) + ",";
     }
     // DOM props
     if (el.props) {
-      data += "domProps:{" + (genProps(el.props)) + "},";
+      data += "domProps:" + (genProps(el.props)) + ",";
     }
     // event handlers
     if (el.events) {
@@ -4300,6 +4457,12 @@
       }
     }
     data = data.replace(/,$/, '') + '}';
+    // v-bind dynamic argument wrap
+    // v-bind with dynamic arguments must be applied using the same v-bind object
+    // merge helper so that class/style/mustUseProp attrs are handled correctly.
+    if (el.dynamicAttrs) {
+      data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
+    }
     // v-bind data wrap
     if (el.wrapData) {
       data = el.wrapData(data);
@@ -4328,7 +4491,7 @@
       }
       if (needRuntime) {
         hasRuntime = true;
-        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+        res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
       }
     }
     if (hasRuntime) {
@@ -4354,9 +4517,10 @@
     slots,
     state
   ) {
+    var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
         return genScopedSlot(key, slots[key], state)
-      }).join(',')) + "])")
+      }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
@@ -4501,15 +4665,23 @@
   }
 
   function genProps (props) {
-    var res = '';
+    var staticProps = "";
+    var dynamicProps = "";
     for (var i = 0; i < props.length; i++) {
       var prop = props[i];
-      /* istanbul ignore if */
-      {
-        res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+      var value = transformSpecialNewlines(prop.value);
+      if (prop.dynamic) {
+        dynamicProps += (prop.name) + "," + value + ",";
+      } else {
+        staticProps += "\"" + (prop.name) + "\":" + value + ",";
       }
     }
-    return res.slice(0, -1)
+    staticProps = "{" + (staticProps.slice(0, -1)) + "}";
+    if (dynamicProps) {
+      return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
+    } else {
+      return staticProps
+    }
   }
 
   // #3895, #4268
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index abca949de4d..791be95c7d6 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -787,7 +787,7 @@ var LIFECYCLE_HOOKS = [
   'activated',
   'deactivated',
   'errorCaptured',
-  'ssrPrefetch'
+  'serverPrefetch'
 ];
 
 /*  */
@@ -1880,13 +1880,16 @@ function pluckModuleFunction (
     : []
 }
 
-function addProp (el, name, value, range) {
-  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value }, range));
+function addProp (el, name, value, range, dynamic) {
+  (el.props || (el.props = [])).push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
   el.plain = false;
 }
 
-function addAttr (el, name, value, range) {
-  (el.attrs || (el.attrs = [])).push(rangeSetItem({ name: name, value: value }, range));
+function addAttr (el, name, value, range, dynamic) {
+  var attrs = dynamic
+    ? (el.dynamicAttrs || (el.dynamicAttrs = []))
+    : (el.attrs || (el.attrs = []));
+  attrs.push(rangeSetItem({ name: name, value: value, dynamic: dynamic }, range));
   el.plain = false;
 }
 
@@ -1902,13 +1905,27 @@ function addDirective (
   rawName,
   value,
   arg,
+  isDynamicArg,
   modifiers,
   range
 ) {
-  (el.directives || (el.directives = [])).push(rangeSetItem({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers }, range));
+  (el.directives || (el.directives = [])).push(rangeSetItem({
+    name: name,
+    rawName: rawName,
+    value: value,
+    arg: arg,
+    isDynamicArg: isDynamicArg,
+    modifiers: modifiers
+  }, range));
   el.plain = false;
 }
 
+function prependModifierMarker (symbol, name, dynamic) {
+  return dynamic
+    ? ("_p(" + name + ",\"" + symbol + "\")")
+    : symbol + name // mark the event as captured
+}
+
 function addHandler (
   el,
   name,
@@ -1916,7 +1933,8 @@ function addHandler (
   modifiers,
   important,
   warn,
-  range
+  range,
+  dynamic
 ) {
   modifiers = modifiers || emptyObject;
   // warn prevent and passive modifier
@@ -1935,11 +1953,17 @@ function addHandler (
   // normalize click.right and click.middle since they don't actually fire
   // this is technically browser-specific, but at least for now browsers are
   // the only target envs that have right/middle clicks.
-  if (name === 'click') {
-    if (modifiers.right) {
+  if (modifiers.right) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'contextmenu':(" + name + ")";
+    } else if (name === 'click') {
       name = 'contextmenu';
       delete modifiers.right;
-    } else if (modifiers.middle) {
+    }
+  } else if (modifiers.middle) {
+    if (dynamic) {
+      name = "(" + name + ")==='click'?'mouseup':(" + name + ")";
+    } else if (name === 'click') {
       name = 'mouseup';
     }
   }
@@ -1947,16 +1971,16 @@ function addHandler (
   // check capture modifier
   if (modifiers.capture) {
     delete modifiers.capture;
-    name = '!' + name; // mark the event as captured
+    name = prependModifierMarker('!', name, dynamic);
   }
   if (modifiers.once) {
     delete modifiers.once;
-    name = '~' + name; // mark the event as once
+    name = prependModifierMarker('~', name, dynamic);
   }
   /* istanbul ignore if */
   if (modifiers.passive) {
     delete modifiers.passive;
-    name = '&' + name; // mark the event as passive
+    name = prependModifierMarker('&', name, dynamic);
   }
 
   var events;
@@ -1967,7 +1991,7 @@ function addHandler (
     events = el.events || (el.events = {});
   }
 
-  var newHandler = rangeSetItem({ value: value.trim() }, range);
+  var newHandler = rangeSetItem({ value: value.trim(), dynamic: dynamic }, range);
   if (modifiers !== emptyObject) {
     newHandler.modifiers = modifiers;
   }
@@ -2324,13 +2348,14 @@ var dirRE = /^v-|^@|^:|^\./;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
+var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
 var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
-var scopedSlotShorthandRE = /^:?\(.*\)$/;
+var slotRE = /^v-slot(:|$)|^#/;
 
 var lineBreakRE = /[\r\n]/;
 var whitespaceRE = /\s+/g;
@@ -2859,27 +2884,7 @@ function processSlotContent (el) {
         true
       );
     }
-    el.slotScope = (
-      slotScope ||
-      getAndRemoveAttr(el, 'slot-scope')
-    );
-    if (process.env.NEW_SLOT_SYNTAX) {
-      // new in 2.6: slot-props and its shorthand works the same as slot-scope
-      // when used on <template> containers
-      el.slotScope = el.slotScope || getAndRemoveAttr(el, 'slot-props');
-      // 2.6 shorthand syntax
-      var shorthand = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
-      if (shorthand) {
-        if (process.env.NODE_ENV !== 'production' && el.slotScope) {
-          warn$1(
-            "Unexpected mixed usage of different slot syntaxes.",
-            el
-          );
-        }
-        el.slotTarget = getScopedSlotShorthandName(shorthand);
-        el.slotScope = shorthand.value;
-      }
-    }
+    el.slotScope = slotScope || getAndRemoveAttr(el, 'slot-scope');
   } else if ((slotScope = getAndRemoveAttr(el, 'slot-scope'))) {
     /* istanbul ignore if */
     if (process.env.NODE_ENV !== 'production' && el.attrsMap['v-for']) {
@@ -2892,58 +2897,101 @@ function processSlotContent (el) {
       );
     }
     el.slotScope = slotScope;
-  } else if (process.env.NEW_SLOT_SYNTAX) {
-    // 2.6: slot-props on component, denotes default slot
-    slotScope = getAndRemoveAttr(el, 'slot-props');
-    var shorthand$1 = getAndRemoveAttrByRegex(el, scopedSlotShorthandRE);
-    if (slotScope || shorthand$1) {
-      if (process.env.NODE_ENV !== 'production') {
-        if (!maybeComponent(el)) {
-          warn$1(
-            "slot-props cannot be used on non-component elements.",
-            el.rawAttrsMap['slot-props'] || el.rawAttrsMap['()']
-          );
-        }
-        if (slotScope && shorthand$1) {
-          warn$1(
-            "Unexpected mixed usage of different slot syntaxes.",
-            el
-          );
-        }
-      }
-      // add the component's children to its default slot
-      var slots = el.scopedSlots || (el.scopedSlots = {});
-      var target = shorthand$1 ? getScopedSlotShorthandName(shorthand$1) : "\"default\"";
-      var slotContainer = slots[target] = createASTElement('template', [], el);
-      slotContainer.children = el.children;
-      slotContainer.slotScope = shorthand$1 ? shorthand$1.value : slotScope;
-      // remove children as they are returned from scopedSlots now
-      el.children = [];
-      // mark el non-plain so data gets generated
-      el.plain = false;
-    }
   }
 
   // slot="xxx"
   var slotTarget = getBindingAttr(el, 'slot');
   if (slotTarget) {
     el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
+    el.slotTargetDynamic = !!(el.attrsMap[':slot'] || el.attrsMap['v-bind:slot']);
     // preserve slot as an attribute for native shadow DOM compat
     // only for non-scoped slots.
     if (el.tag !== 'template' && !el.slotScope) {
       addAttr(el, 'slot', slotTarget, getRawBindingAttr(el, 'slot'));
     }
   }
-}
 
-function getScopedSlotShorthandName (ref) {
-  var name = ref.name;
+  // 2.6 v-slot syntax
+  if (process.env.NEW_SLOT_SYNTAX) {
+    if (el.tag === 'template') {
+      // v-slot on <template>
+      var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding) {
+        if (process.env.NODE_ENV !== 'production') {
+          if (el.slotTarget || el.slotScope) {
+            warn$1(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+        }
+        var ref = getSlotName(slotBinding);
+        var name = ref.name;
+        var dynamic = ref.dynamic;
+        el.slotTarget = name;
+        el.slotTargetDynamic = dynamic;
+        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+      }
+    } else {
+      // v-slot on component, denotes default slot
+      var slotBinding$1 = getAndRemoveAttrByRegex(el, slotRE);
+      if (slotBinding$1) {
+        if (process.env.NODE_ENV !== 'production') {
+          if (!maybeComponent(el)) {
+            warn$1(
+              "v-slot can only be used on components or <template>.",
+              slotBinding$1
+            );
+          }
+          if (el.slotScope || el.slotTarget) {
+            warn$1(
+              "Unexpected mixed usage of different slot syntaxes.",
+              el
+            );
+          }
+          if (el.scopedSlots) {
+            warn$1(
+              "To avoid scope ambiguity, the default slot should also use " +
+              "<template> syntax when there are other named slots.",
+              slotBinding$1
+            );
+          }
+        }
+        // add the component's children to its default slot
+        var slots = el.scopedSlots || (el.scopedSlots = {});
+        var ref$1 = getSlotName(slotBinding$1);
+        var name$1 = ref$1.name;
+        var dynamic$1 = ref$1.dynamic;
+        var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTargetDynamic = dynamic$1;
+        slotContainer.children = el.children;
+        slotContainer.slotScope = slotBinding$1.value || "_";
+        // remove children as they are returned from scopedSlots now
+        el.children = [];
+        // mark el non-plain so data gets generated
+        el.plain = false;
+      }
+    }
+  }
+}
 
-  return name.charAt(0) === ':'
-    // dynamic :(name)
-    ? name.slice(2, -1) || "\"default\""
-    // static (name)
-    : ("\"" + (name.slice(1, -1) || "default") + "\"")
+function getSlotName (binding) {
+  var name = binding.name.replace(slotRE, '');
+  if (!name) {
+    if (binding.name[0] !== '#') {
+      name = 'default';
+    } else if (process.env.NODE_ENV !== 'production') {
+      warn$1(
+        "v-slot shorthand syntax requires a slot name.",
+        binding
+      );
+    }
+  }
+  return dynamicArgRE.test(name)
+    // dynamic [name]
+    ? { name: name.slice(1, -1), dynamic: true }
+    // static name
+    : { name: ("\"" + name + "\""), dynamic: false }
 }
 
 // handle <slot/> outlets
@@ -2973,7 +3021,7 @@ function processComponent (el) {
 
 function processAttrs (el) {
   var list = el.attrsList;
-  var i, l, name, rawName, value, modifiers, isProp, syncGen;
+  var i, l, name, rawName, value, modifiers, syncGen, isDynamic;
   for (i = 0, l = list.length; i < l; i++) {
     name = rawName = list[i].name;
     value = list[i].value;
@@ -2992,7 +3040,10 @@ function processAttrs (el) {
       if (bindRE.test(name)) { // v-bind
         name = name.replace(bindRE, '');
         value = parseFilters(value);
-        isProp = false;
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
         if (
           process.env.NODE_ENV !== 'production' &&
           value.trim().length === 0
@@ -3002,57 +3053,79 @@ function processAttrs (el) {
           );
         }
         if (modifiers) {
-          if (modifiers.prop) {
-            isProp = true;
+          if (modifiers.prop && !isDynamic) {
             name = camelize(name);
             if (name === 'innerHtml') { name = 'innerHTML'; }
           }
-          if (modifiers.camel) {
+          if (modifiers.camel && !isDynamic) {
             name = camelize(name);
           }
           if (modifiers.sync) {
             syncGen = genAssignmentCode(value, "$event");
-            addHandler(
-              el,
-              ("update:" + (camelize(name))),
-              syncGen,
-              null,
-              false,
-              warn$1,
-              list[i]
-            );
-            if (hyphenate(name) !== camelize(name)) {
+            if (!isDynamic) {
               addHandler(
                 el,
-                ("update:" + (hyphenate(name))),
+                ("update:" + (camelize(name))),
                 syncGen,
                 null,
                 false,
                 warn$1,
                 list[i]
               );
+              if (hyphenate(name) !== camelize(name)) {
+                addHandler(
+                  el,
+                  ("update:" + (hyphenate(name))),
+                  syncGen,
+                  null,
+                  false,
+                  warn$1,
+                  list[i]
+                );
+              }
+            } else {
+              // handler w/ dynamic event name
+              addHandler(
+                el,
+                ("\"update:\"+(" + name + ")"),
+                syncGen,
+                null,
+                false,
+                warn$1,
+                list[i],
+                true // dynamic
+              );
             }
           }
         }
-        if (isProp || (
+        if ((modifiers && modifiers.prop) || (
           !el.component && platformMustUseProp(el.tag, el.attrsMap.type, name)
         )) {
-          addProp(el, name, value, list[i]);
+          addProp(el, name, value, list[i], isDynamic);
         } else {
-          addAttr(el, name, value, list[i]);
+          addAttr(el, name, value, list[i], isDynamic);
         }
       } else if (onRE.test(name)) { // v-on
         name = name.replace(onRE, '');
-        addHandler(el, name, value, modifiers, false, warn$1, list[i]);
+        isDynamic = dynamicArgRE.test(name);
+        if (isDynamic) {
+          name = name.slice(1, -1);
+        }
+        addHandler(el, name, value, modifiers, false, warn$1, list[i], isDynamic);
       } else { // normal directives
         name = name.replace(dirRE, '');
         // parse arg
         var argMatch = name.match(argRE);
         var arg = argMatch && argMatch[1];
+        isDynamic = false;
         if (arg) {
           name = name.slice(0, -(arg.length + 1));
+          if (dynamicArgRE.test(arg)) {
+            arg = arg.slice(1, -1);
+            isDynamic = true;
+          }
         }
-        addDirective(el, name, rawName, value, arg, modifiers, list[i]);
+        addDirective(el, name, rawName, value, arg, isDynamic, modifiers, list[i]);
         if (process.env.NODE_ENV !== 'production' && name === 'model') {
           checkForAliasModel(el, value);
         }
@@ -3639,23 +3712,32 @@ function genHandlers (
   events,
   isNative
 ) {
-  var res = isNative ? 'nativeOn:{' : 'on:{';
+  var prefix = isNative ? 'nativeOn:' : 'on:';
+  var staticHandlers = "";
+  var dynamicHandlers = "";
   for (var name in events) {
-    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
+    var handlerCode = genHandler(events[name]);
+    if (events[name] && events[name].dynamic) {
+      dynamicHandlers += name + "," + handlerCode + ",";
+    } else {
+      staticHandlers += "\"" + name + "\":" + handlerCode + ",";
+    }
+  }
+  staticHandlers = "{" + (staticHandlers.slice(0, -1)) + "}";
+  if (dynamicHandlers) {
+    return prefix + "_d(" + staticHandlers + ",[" + (dynamicHandlers.slice(0, -1)) + "])"
+  } else {
+    return prefix + staticHandlers
   }
-  return res.slice(0, -1) + '}'
 }
 
-function genHandler (
-  name,
-  handler
-) {
+function genHandler (handler) {
   if (!handler) {
     return 'function(){}'
   }
 
   if (Array.isArray(handler)) {
-    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
+    return ("[" + (handler.map(function (handler) { return genHandler(handler); }).join(',')) + "]")
   }
 
   var isMethodPath = simplePathRE.test(handler.value);
@@ -3709,7 +3791,7 @@ function genHandler (
 }
 
 function genKeyFilter (keys) {
-  return ("if(!('button' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
 }
 
 function genFilterCode (key) {
@@ -3972,11 +4054,11 @@ function genData$2 (el, state) {
   }
   // attributes
   if (el.attrs) {
-    data += "attrs:{" + (genProps(el.attrs)) + "},";
+    data += "attrs:" + (genProps(el.attrs)) + ",";
   }
   // DOM props
   if (el.props) {
-    data += "domProps:{" + (genProps(el.props)) + "},";
+    data += "domProps:" + (genProps(el.props)) + ",";
   }
   // event handlers
   if (el.events) {
@@ -4006,6 +4088,12 @@ function genData$2 (el, state) {
     }
   }
   data = data.replace(/,$/, '') + '}';
+  // v-bind dynamic argument wrap
+  // v-bind with dynamic arguments must be applied using the same v-bind object
+  // merge helper so that class/style/mustUseProp attrs are handled correctly.
+  if (el.dynamicAttrs) {
+    data = "_b(" + data + ",\"" + (el.tag) + "\"," + (genProps(el.dynamicAttrs)) + ")";
+  }
   // v-bind data wrap
   if (el.wrapData) {
     data = el.wrapData(data);
@@ -4034,7 +4122,7 @@ function genDirectives (el, state) {
     }
     if (needRuntime) {
       hasRuntime = true;
-      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
+      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:" + (dir.isDynamicArg ? dir.arg : ("\"" + (dir.arg) + "\""))) : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
     }
   }
   if (hasRuntime) {
@@ -4062,9 +4150,10 @@ function genScopedSlots (
   slots,
   state
 ) {
+  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
       return genScopedSlot(key, slots[key], state)
-    }).join(',')) + "])")
+    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
@@ -4209,15 +4298,23 @@ function genComponent (
 }
 
 function genProps (props) {
-  var res = '';
+  var staticProps = "";
+  var dynamicProps = "";
   for (var i = 0; i < props.length; i++) {
     var prop = props[i];
-    /* istanbul ignore if */
-    {
-      res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
+    var value = transformSpecialNewlines(prop.value);
+    if (prop.dynamic) {
+      dynamicProps += (prop.name) + "," + value + ",";
+    } else {
+      staticProps += "\"" + (prop.name) + "\":" + value + ",";
     }
   }
-  return res.slice(0, -1)
+  staticProps = "{" + (staticProps.slice(0, -1)) + "}";
+  if (dynamicProps) {
+    return ("_d(" + staticProps + ",[" + (dynamicProps.slice(0, -1)) + "])")
+  } else {
+    return staticProps
+  }
 }
 
 // #3895, #4268
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index f030a78dbc1..9965c604d95 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.0-beta.1",
+  "version": "2.6.0-beta.2",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 624c79930ad2e9b0cfff8853f5629383b8d59b3a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 25 Jan 2019 23:38:40 -0500
Subject: [PATCH 753/911] build: release 2.6.0-beta.2

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index ffad783c105..84854de357d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.0-beta.1",
+  "version": "2.6.0-beta.2",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From c9e3a5d1d92500ac1e1d1eb6f3866a9df5eecf53 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 28 Jan 2019 18:08:37 -0500
Subject: [PATCH 754/911] feat: detect and warn invalid dynamic argument
 expressions

---
 src/compiler/parser/html-parser.js        |  3 ++-
 src/compiler/parser/index.js              | 28 ++++++++++++++++++-----
 test/unit/modules/compiler/parser.spec.js | 17 ++++++++++++++
 3 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index 1b304fbdb6a..d237f517775 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -15,6 +15,7 @@ import { unicodeLetters } from 'core/util/lang'
 
 // Regular Expressions for parsing tags and attributes
 const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/
+const dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/
 const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeLetters}]*`
 const qnameCapture = `((?:${ncname}\\:)?${ncname})`
 const startTagOpen = new RegExp(`^<${qnameCapture}`)
@@ -192,7 +193,7 @@ export function parseHTML (html, options) {
       }
       advance(start[0].length)
       let end, attr
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+      while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
         attr.start = index
         advance(attr[0].length)
         attr.end = index
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index e3433928059..145d5638bb8 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -38,6 +38,8 @@ const slotRE = /^v-slot(:|$)|^#/
 const lineBreakRE = /[\r\n]/
 const whitespaceRE = /\s+/g
 
+const invalidAttributeRE = /[\s"'<>\/=]/
+
 const decodeHTMLCached = cached(he.decode)
 
 // configurable state
@@ -194,12 +196,26 @@ export function parse (
         element.ns = ns
       }
 
-      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
-        element.start = start
-        element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
-          cumulated[attr.name] = attr
-          return cumulated
-        }, {})
+      if (process.env.NODE_ENV !== 'production') {
+        if (options.outputSourceRange) {
+          element.start = start
+          element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
+            cumulated[attr.name] = attr
+            return cumulated
+          }, {})
+        }
+        attrs.forEach(attr => {
+          if (invalidAttributeRE.test(attr.name)) {
+            warn(
+              `Invalid dynamic argument expression: attribute names cannot contain ` +
+              `spaces, quotes, <, >, / or =.`,
+              {
+                start: attr.start + attr.name.indexOf(`[`),
+                end: attr.start + attr.name.length
+              }
+            )
+          }
+        })
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index fcfb8be6ae1..08f1745fc67 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -550,6 +550,23 @@ describe('parser', () => {
     expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: true }])
   })
 
+  // This only works for string templates.
+  // In-DOM templates will be malformed before Vue can parse it.
+  describe('parse and warn invalid dynamic arguments', () => {
+    [
+      `<div v-bind:['foo' + bar]="baz"/>`,
+      `<div :['foo' + bar]="baz"/>`,
+      `<div @['foo' + bar]="baz"/>`,
+      `<foo #['foo' + bar]="baz"/>`,
+      `<div :['foo' + bar].some.mod="baz"/>`
+    ].forEach(template => {
+      it(template, () => {
+        const ast = parse(template, baseOptions)
+        expect(`Invalid dynamic argument expression`).toHaveBeenWarned()
+      })
+    })
+  })
+
   // #6887
   it('special case static attribute that must be props', () => {
     const ast = parse('<video muted></video>', baseOptions)

From 2afa1d056e9c50376cb63763ab6815cd245b8d69 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Jan 2019 09:47:31 -0500
Subject: [PATCH 755/911] build: fix feature flags for esm builds

---
 scripts/config.js | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/scripts/config.js b/scripts/config.js
index 183d0203708..1294a6534fa 100644
--- a/scripts/config.js
+++ b/scripts/config.js
@@ -68,8 +68,7 @@ const builds = {
     alias: { he: './entity-decoder' },
     banner
   },
-  // Runtime only (ES Modules). Used by bundlers that support ES Modules,
-  // e.g. Rollup & Webpack 2
+  // Runtime only ES modules build (for bundlers)
   'web-runtime-esm': {
     entry: resolve('web/entry-runtime.js'),
     dest: resolve('dist/vue.runtime.esm.js'),
@@ -220,11 +219,6 @@ function genConfig (name) {
     input: opts.entry,
     external: opts.external,
     plugins: [
-      replace({
-        __WEEX__: !!opts.weex,
-        __WEEX_VERSION__: weexVersion,
-        __VERSION__: version
-      }),
       flow(),
       alias(Object.assign({}, aliases, opts.alias))
     ].concat(opts.plugins || []),
@@ -241,15 +235,21 @@ function genConfig (name) {
     }
   }
 
+  // built-in vars
+  const vars = {
+    __WEEX__: !!opts.weex,
+    __WEEX_VERSION__: weexVersion,
+    __VERSION__: version
+  }
+  // feature flags
+  Object.keys(featureFlags).forEach(key => {
+    vars[`process.env.${key}`] = featureFlags[key]
+  })
+  // build-specific env
   if (opts.env) {
-    const vars = {
-      'process.env.NODE_ENV': JSON.stringify(opts.env)
-    }
-    Object.keys(featureFlags).forEach(key => {
-      vars[`process.env.${key}`] = featureFlags[key]
-    })
-    config.plugins.push(replace(vars))
+    vars['process.env.NODE_ENV'] = JSON.stringify(opts.env)
   }
+  config.plugins.push(replace(vars))
 
   if (opts.transpile !== false) {
     config.plugins.push(buble())

From 9f3cbafa551f654c9782fd0cef9e3214efc903f2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Jan 2019 09:59:32 -0500
Subject: [PATCH 756/911] build: build 2.6.0-beta.3

---
 dist/vue.common.dev.js                      | 35 ++++++++++++++-----
 dist/vue.common.prod.js                     |  4 +--
 dist/vue.esm.browser.js                     | 35 ++++++++++++++-----
 dist/vue.esm.browser.min.js                 |  4 +--
 dist/vue.esm.js                             | 37 +++++++++++++++------
 dist/vue.js                                 | 35 ++++++++++++++-----
 dist/vue.min.js                             |  4 +--
 dist/vue.runtime.common.dev.js              |  4 +--
 dist/vue.runtime.common.prod.js             |  4 +--
 dist/vue.runtime.esm.js                     |  4 +--
 dist/vue.runtime.js                         |  4 +--
 dist/vue.runtime.min.js                     |  4 +--
 packages/vue-server-renderer/basic.js       | 31 +++++++++++++----
 packages/vue-server-renderer/build.dev.js   | 31 +++++++++++++----
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 31 +++++++++++++----
 packages/vue-template-compiler/build.js     | 33 +++++++++++++-----
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 221 insertions(+), 85 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 8d7481b56bb..71dc2406961 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5319,7 +5319,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.2';
+Vue.version = '2.6.0-beta.3';
 
 /*  */
 
@@ -9089,6 +9089,7 @@ var isNonPhrasingTag = makeMap(
 
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
@@ -9266,7 +9267,7 @@ function parseHTML (html, options) {
       };
       advance(start[0].length);
       var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+      while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
         attr.start = index;
         advance(attr[0].length);
         attr.end = index;
@@ -9395,6 +9396,8 @@ var slotRE = /^v-slot(:|$)|^#/;
 var lineBreakRE = /[\r\n]/;
 var whitespaceRE$1 = /\s+/g;
 
+var invalidAttributeRE = /[\s"'<>\/=]/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -9551,12 +9554,26 @@ function parse (
         element.ns = ns;
       }
 
-      if (options.outputSourceRange) {
-        element.start = start$1;
-        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-          cumulated[attr.name] = attr;
-          return cumulated
-        }, {});
+      {
+        if (options.outputSourceRange) {
+          element.start = start$1;
+          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+        attrs.forEach(function (attr) {
+          if (invalidAttributeRE.test(attr.name)) {
+            warn$2(
+              "Invalid dynamic argument expression: attribute names cannot contain " +
+              "spaces, quotes, <, >, / or =.",
+              {
+                start: attr.start + attr.name.indexOf("["),
+                end: attr.start + attr.name.length
+              }
+            );
+          }
+        });
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index 87cf45647cd..a7120650d9e 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 8b72a48b067..c46ad2c100b 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5352,7 +5352,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.2';
+Vue.version = '2.6.0-beta.3';
 
 /*  */
 
@@ -9108,6 +9108,7 @@ const isNonPhrasingTag = makeMap(
 
 // Regular Expressions for parsing tags and attributes
 const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+const dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeLetters}]*`;
 const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
 const startTagOpen = new RegExp(`^<${qnameCapture}`);
@@ -9285,7 +9286,7 @@ function parseHTML (html, options) {
       };
       advance(start[0].length);
       let end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+      while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
         attr.start = index;
         advance(attr[0].length);
         attr.end = index;
@@ -9414,6 +9415,8 @@ const slotRE = /^v-slot(:|$)|^#/;
 const lineBreakRE = /[\r\n]/;
 const whitespaceRE$1 = /\s+/g;
 
+const invalidAttributeRE = /[\s"'<>\/=]/;
+
 const decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -9570,12 +9573,26 @@ function parse (
         element.ns = ns;
       }
 
-      if (options.outputSourceRange) {
-        element.start = start;
-        element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
-          cumulated[attr.name] = attr;
-          return cumulated
-        }, {});
+      {
+        if (options.outputSourceRange) {
+          element.start = start;
+          element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+        attrs.forEach(attr => {
+          if (invalidAttributeRE.test(attr.name)) {
+            warn$2(
+              `Invalid dynamic argument expression: attribute names cannot contain ` +
+              `spaces, quotes, <, >, / or =.`,
+              {
+                start: attr.start + attr.name.indexOf(`[`),
+                end: attr.start + attr.name.length
+              }
+            );
+          }
+        });
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index b115faed12a..0b2eb5c3267 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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0"}function Si(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${Oi(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Ti(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ni(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${Oi(t,e)},${e.onceId++},${n})`:Oi(t,e)}return Si(t,e)}function Ni(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Ti(t,n):Oi(t,n)}}(t.ifConditions.slice(),e,n,o)}function Ei(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Di(t.attrs)},`),t.props&&(n+=`domProps:${Di(t.props)},`),t.events&&(n+=`${bi(t.events,!1)},`),t.nativeEvents&&(n+=`${bi(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e){const n=Object.keys(t).some(e=>t[e].slotTargetDynamic);return`scopedSlots:_u([${Object.keys(t).map(n=>ji(n,t[n],e)).join(",")}]${n?",true":""})`}(t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(1===n.type){const t=ki(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Di(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function ji(t,e,n){if(e.for&&!e.forProcessed)return function(t,e,n){const o=e.for,r=e.alias,s=e.iterator1?`,${e.iterator1}`:"",i=e.iterator2?`,${e.iterator2}`:"";return e.forProcessed=!0,`_l((${o}),`+`function(${r}${s}${i}){`+`return ${ji(t,e,n)}`+"})"}(t,e,n);return`{key:${t},fn:${`function(${String(e.slotScope)}){`+`return ${"template"===e.tag?e.if?`(${e.if})?${Li(e,n)||"undefined"}:undefined`:Li(e,n)||"undefined":Oi(e,n)}}`}}`}function Li(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||Oi)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Ii(r)||r.ifConditions&&r.ifConditions.some(t=>Ii(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Mi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Ii(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Mi(t,e){return 1===t.type?Oi(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Pi(JSON.stringify(n.text))})`;var n,o}function Di(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Pi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Pi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Ri(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Fi(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Ri(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Ri(t,c)),e[s]=a}}const Hi=(Bi=function(t,e){const n=Ys(t.trim(),e);!1!==e.optimize&&pi(n,e);const o=ki(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=Bi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Fi(e)}});var Bi;const{compile:Ui,compileToFunctions:zi}=Hi(li);let Vi;function Ki(t){return(Vi=Vi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Vi.innerHTML.indexOf("&#10;")>0}const Ji=!!U&&Ki(!1),qi=!!U&&Ki(!0),Wi=v(t=>{const e=Bn(t);return e&&e.innerHTML}),Zi=pn.prototype.$mount;pn.prototype.$mount=function(t,e){if((t=t&&Bn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=Wi(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=zi(e,{outputSourceRange:!1,shouldDecodeNewlines:Ji,shouldDecodeNewlinesForHref:qi,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return Zi.call(this,t,e)},pn.compile=zi;export default pn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 21fca19ac53..69cb86389b3 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5339,7 +5339,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.2';
+Vue.version = '2.6.0-beta.3';
 
 /*  */
 
@@ -9117,6 +9117,7 @@ var isNonPhrasingTag = makeMap(
 
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
@@ -9294,7 +9295,7 @@ function parseHTML (html, options) {
       };
       advance(start[0].length);
       var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+      while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
         attr.start = index;
         advance(attr[0].length);
         attr.end = index;
@@ -9424,6 +9425,8 @@ var slotRE = /^v-slot(:|$)|^#/;
 var lineBreakRE = /[\r\n]/;
 var whitespaceRE$1 = /\s+/g;
 
+var invalidAttributeRE = /[\s"'<>\/=]/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -9580,12 +9583,26 @@ function parse (
         element.ns = ns;
       }
 
-      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
-        element.start = start$1;
-        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-          cumulated[attr.name] = attr;
-          return cumulated
-        }, {});
+      if (process.env.NODE_ENV !== 'production') {
+        if (options.outputSourceRange) {
+          element.start = start$1;
+          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+        attrs.forEach(function (attr) {
+          if (invalidAttributeRE.test(attr.name)) {
+            warn$2(
+              "Invalid dynamic argument expression: attribute names cannot contain " +
+              "spaces, quotes, <, >, / or =.",
+              {
+                start: attr.start + attr.name.indexOf("["),
+                end: attr.start + attr.name.length
+              }
+            );
+          }
+        });
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
@@ -9976,7 +9993,7 @@ function processSlotContent (el) {
   }
 
   // 2.6 v-slot syntax
-  if (process.env.NEW_SLOT_SYNTAX) {
+  {
     if (el.tag === 'template') {
       // v-slot on <template>
       var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
diff --git a/dist/vue.js b/dist/vue.js
index 86e37eb0170..04558878dc4 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5323,7 +5323,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0-beta.2';
+  Vue.version = '2.6.0-beta.3';
 
   /*  */
 
@@ -9093,6 +9093,7 @@
 
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+  var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
   var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
@@ -9270,7 +9271,7 @@
         };
         advance(start[0].length);
         var end, attr;
-        while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
           attr.start = index;
           advance(attr[0].length);
           attr.end = index;
@@ -9399,6 +9400,8 @@
   var lineBreakRE = /[\r\n]/;
   var whitespaceRE$1 = /\s+/g;
 
+  var invalidAttributeRE = /[\s"'<>\/=]/;
+
   var decodeHTMLCached = cached(he.decode);
 
   // configurable state
@@ -9555,12 +9558,26 @@
           element.ns = ns;
         }
 
-        if (options.outputSourceRange) {
-          element.start = start$1;
-          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-            cumulated[attr.name] = attr;
-            return cumulated
-          }, {});
+        {
+          if (options.outputSourceRange) {
+            element.start = start$1;
+            element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+              cumulated[attr.name] = attr;
+              return cumulated
+            }, {});
+          }
+          attrs.forEach(function (attr) {
+            if (invalidAttributeRE.test(attr.name)) {
+              warn$2(
+                "Invalid dynamic argument expression: attribute names cannot contain " +
+                "spaces, quotes, <, >, / or =.",
+                {
+                  start: attr.start + attr.name.indexOf("["),
+                  end: attr.start + attr.name.length
+                }
+              );
+            }
+          });
         }
 
         if (isForbiddenTag(element) && !isServerRendering()) {
diff --git a/dist/vue.min.js b/dist/vue.min.js
index ba5e1c5c3c2..6570821aed6 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index 4b6218577f5..5744263cee1 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5310,7 +5310,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.2';
+Vue.version = '2.6.0-beta.3';
 
 /*  */
 
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index beb78f834a7..07b4b40634c 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
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  */
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diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 1f8be60439f..c5ecd7ac4c7 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5330,7 +5330,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.2';
+Vue.version = '2.6.0-beta.3';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 78615dd2170..ab4c4eabdca 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5314,7 +5314,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0-beta.2';
+  Vue.version = '2.6.0-beta.3';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index f29aa2d59ca..07e88d15c09 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.2
+ * Vue.js v2.6.0-beta.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index a8677d5f73d..b0e1518e567 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -3344,6 +3344,7 @@
 
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+  var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
   var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
@@ -3521,7 +3522,7 @@
         };
         advance(start[0].length);
         var end, attr;
-        while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
           attr.start = index;
           advance(attr[0].length);
           attr.end = index;
@@ -3798,6 +3799,8 @@
   var lineBreakRE = /[\r\n]/;
   var whitespaceRE = /\s+/g;
 
+  var invalidAttributeRE = /[\s"'<>\/=]/;
+
   var decodeHTMLCached = cached(he.decode);
 
   // configurable state
@@ -3954,12 +3957,26 @@
           element.ns = ns;
         }
 
-        if (options.outputSourceRange) {
-          element.start = start$1;
-          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-            cumulated[attr.name] = attr;
-            return cumulated
-          }, {});
+        {
+          if (options.outputSourceRange) {
+            element.start = start$1;
+            element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+              cumulated[attr.name] = attr;
+              return cumulated
+            }, {});
+          }
+          attrs.forEach(function (attr) {
+            if (invalidAttributeRE.test(attr.name)) {
+              warn$1(
+                "Invalid dynamic argument expression: attribute names cannot contain " +
+                "spaces, quotes, <, >, / or =.",
+                {
+                  start: attr.start + attr.name.indexOf("["),
+                  end: attr.start + attr.name.length
+                }
+              );
+            }
+          });
         }
 
         if (isForbiddenTag(element) && !isServerRendering()) {
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index cdc4c22e3dd..4a87236dc63 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -3094,6 +3094,7 @@ var style = {
 
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
@@ -3271,7 +3272,7 @@ function parseHTML (html, options) {
       };
       advance(start[0].length);
       var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+      while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
         attr.start = index;
         advance(attr[0].length);
         attr.end = index;
@@ -3548,6 +3549,8 @@ var slotRE = /^v-slot(:|$)|^#/;
 var lineBreakRE = /[\r\n]/;
 var whitespaceRE = /\s+/g;
 
+var invalidAttributeRE = /[\s"'<>\/=]/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -3704,12 +3707,26 @@ function parse (
         element.ns = ns;
       }
 
-      if (options.outputSourceRange) {
-        element.start = start$1;
-        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-          cumulated[attr.name] = attr;
-          return cumulated
-        }, {});
+      {
+        if (options.outputSourceRange) {
+          element.start = start$1;
+          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+        attrs.forEach(function (attr) {
+          if (invalidAttributeRE.test(attr.name)) {
+            warn$1(
+              "Invalid dynamic argument expression: attribute names cannot contain " +
+              "spaces, quotes, <, >, / or =.",
+              {
+                start: attr.start + attr.name.indexOf("["),
+                end: attr.start + attr.name.length
+              }
+            );
+          }
+        });
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index ab8c3504dee..076e35ab915 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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Promise(function(r){t._registeredComponents=new Set;var n=a(e,vo(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?vo():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var yo=require("source-map").SourceMapConsumer,go=/\(([^)]+\.js):(\d+):(\d+)\)$/;function bo(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(go),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(go,c)}return e}return e}(e,t)}).join("\n"))}var _o=require("fs"),wo=require("path"),xo=require("stream").PassThrough,So="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function $o(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=Gi(t,r,n,a),p=new ao({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=Yi()).promise,r=n.cb);var a="",s=dt(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new vt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:st,canBeLeftOpenTag:ct,modules:nt,directives:$(at,e.directives)}))}process.env.VUE_ENV="server";var Ao=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&wo.isAbsolute(t)){if(!_o.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||wo.dirname(t),t=_o.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new yo(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(So)}else{if("string"!=typeof t)throw new Error(So);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=mo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=Yi()).promise,t=r.cb),u(e).catch(function(e){bo(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){bo(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new xo;return u(e).catch(function(e){bo(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){bo(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}($o);exports.createRenderer=$o,exports.createBundleRenderer=Ao;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 699c7e2eba3..add0a4dab00 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.0-beta.2",
+  "version": "2.6.0-beta.3",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 304cd9f70dd..5cccb66072b 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -303,6 +303,7 @@
 
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+  var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
   var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
@@ -480,7 +481,7 @@
         };
         advance(start[0].length);
         var end, attr;
-        while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+        while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
           attr.start = index;
           advance(attr[0].length);
           attr.end = index;
@@ -2740,6 +2741,8 @@
   var lineBreakRE = /[\r\n]/;
   var whitespaceRE = /\s+/g;
 
+  var invalidAttributeRE = /[\s"'<>\/=]/;
+
   var decodeHTMLCached = cached(he.decode);
 
   // configurable state
@@ -2896,12 +2899,26 @@
           element.ns = ns;
         }
 
-        if (options.outputSourceRange) {
-          element.start = start$1;
-          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-            cumulated[attr.name] = attr;
-            return cumulated
-          }, {});
+        {
+          if (options.outputSourceRange) {
+            element.start = start$1;
+            element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+              cumulated[attr.name] = attr;
+              return cumulated
+            }, {});
+          }
+          attrs.forEach(function (attr) {
+            if (invalidAttributeRE.test(attr.name)) {
+              warn$1(
+                "Invalid dynamic argument expression: attribute names cannot contain " +
+                "spaces, quotes, <, >, / or =.",
+                {
+                  start: attr.start + attr.name.indexOf("["),
+                  end: attr.start + attr.name.length
+                }
+              );
+            }
+          });
         }
 
         if (isForbiddenTag(element) && !isServerRendering()) {
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 791be95c7d6..5f20b14842b 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -260,6 +260,7 @@ function def (obj, key, val, enumerable) {
 
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
+var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
@@ -437,7 +438,7 @@ function parseHTML (html, options) {
       };
       advance(start[0].length);
       var end, attr;
-      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
+      while (!(end = html.match(startTagClose)) && (attr = html.match(dynamicArgAttribute) || html.match(attribute))) {
         attr.start = index;
         advance(attr[0].length);
         attr.end = index;
@@ -2360,6 +2361,8 @@ var slotRE = /^v-slot(:|$)|^#/;
 var lineBreakRE = /[\r\n]/;
 var whitespaceRE = /\s+/g;
 
+var invalidAttributeRE = /[\s"'<>\/=]/;
+
 var decodeHTMLCached = cached(he.decode);
 
 // configurable state
@@ -2516,12 +2519,26 @@ function parse (
         element.ns = ns;
       }
 
-      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
-        element.start = start$1;
-        element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
-          cumulated[attr.name] = attr;
-          return cumulated
-        }, {});
+      if (process.env.NODE_ENV !== 'production') {
+        if (options.outputSourceRange) {
+          element.start = start$1;
+          element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
+            cumulated[attr.name] = attr;
+            return cumulated
+          }, {});
+        }
+        attrs.forEach(function (attr) {
+          if (invalidAttributeRE.test(attr.name)) {
+            warn$1(
+              "Invalid dynamic argument expression: attribute names cannot contain " +
+              "spaces, quotes, <, >, / or =.",
+              {
+                start: attr.start + attr.name.indexOf("["),
+                end: attr.start + attr.name.length
+              }
+            );
+          }
+        });
       }
 
       if (isForbiddenTag(element) && !isServerRendering()) {
@@ -2912,7 +2929,7 @@ function processSlotContent (el) {
   }
 
   // 2.6 v-slot syntax
-  if (process.env.NEW_SLOT_SYNTAX) {
+  {
     if (el.tag === 'template') {
       // v-slot on <template>
       var slotBinding = getAndRemoveAttrByRegex(el, slotRE);
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 9965c604d95..d6fded81e03 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.0-beta.2",
+  "version": "2.6.0-beta.3",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 7721febcc3c0594af0abc25fa32d72d63a52942f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Jan 2019 09:59:37 -0500
Subject: [PATCH 757/911] build: release 2.6.0-beta.3

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 84854de357d..e64da4307b8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.0-beta.2",
+  "version": "2.6.0-beta.3",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 5851961ca320a423003bd32fecb488f230dcd854 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Jan 2019 18:12:18 -0500
Subject: [PATCH 758/911] refactor: adjust codegen for v-if on scoped slot

---
 src/compiler/codegen/index.js                 | 21 +++++++++++++++----
 .../instance/render-helpers/resolve-slots.js  |  2 +-
 test/unit/modules/compiler/codegen.spec.js    |  4 ++--
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index c8b701f02ed..33b9baca24a 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -360,7 +360,10 @@ function genScopedSlots (
   slots: { [key: string]: ASTElement },
   state: CodegenState
 ): string {
-  const hasDynamicKeys = Object.keys(slots).some(key => slots[key].slotTargetDynamic)
+  const hasDynamicKeys = Object.keys(slots).some(key => {
+    const slot = slots[key]
+    return slot.slotTargetDynamic || slot.if || slot.for
+  })
   return `scopedSlots:_u([${
     Object.keys(slots).map(key => {
       return genScopedSlot(key, slots[key], state)
@@ -373,19 +376,29 @@ function genScopedSlot (
   el: ASTElement,
   state: CodegenState
 ): string {
+  if (el.if && !el.ifProcessed) {
+    return genIfScopedSlot(key, el, state)
+  }
   if (el.for && !el.forProcessed) {
     return genForScopedSlot(key, el, state)
   }
   const fn = `function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
-      ? el.if
-        ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
-        : genChildren(el, state) || 'undefined'
+      ? genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`
   return `{key:${key},fn:${fn}}`
 }
 
+function genIfScopedSlot (
+  key: string,
+  el: any,
+  state: CodegenState
+): string {
+  el.ifProcessed = true
+  return `(${el.if})?${genScopedSlot(key, el, state)}:null`
+}
+
 function genForScopedSlot (
   key: string,
   el: any,
diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 53bad202172..57c34970942 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -59,7 +59,7 @@ export function resolveScopedSlots (
     const slot = fns[i]
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res)
-    } else {
+    } else if (slot) {
       res[slot.key] = slot.fn
     }
   }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index d243f24a5eb..20d065b3e72 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -239,11 +239,11 @@ describe('codegen', () => {
   it('generate scoped slot with multiline v-if', () => {
     assertCodegen(
       '<foo><template v-if="\nshow\n" slot-scope="bar">{{ bar }}</template></foo>',
-      `with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return (\nshow\n)?[_v(_s(bar))]:undefined}}])})}`
+      `with(this){return _c('foo',{scopedSlots:_u([(\nshow\n)?{key:"default",fn:function(bar){return [_v(_s(bar))]}}:null],true)})}`
     )
     assertCodegen(
       '<foo><div v-if="\nshow\n" slot="foo" slot-scope="bar">{{ bar }}</div></foo>',
-      `with(this){return _c(\'foo\',{scopedSlots:_u([{key:"foo",fn:function(bar){return (\nshow\n)?_c(\'div\',{},[_v(_s(bar))]):_e()}}])})}`
+      `with(this){return _c(\'foo\',{scopedSlots:_u([(\nshow\n)?{key:"foo",fn:function(bar){return _c(\'div\',{},[_v(_s(bar))])}}:null],true)})}`
     )
   })
 

From 2807fd24b0c17179336f84d1725b69cd3c7a0aca Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Jan 2019 21:30:29 -0500
Subject: [PATCH 759/911] fix: template v-slot should work with v-else
 conditions

---
 src/compiler/codegen/index.js                 | 34 ++-------------
 src/compiler/parser/index.js                  | 42 ++++++++++++++-----
 .../component/component-scoped-slot.spec.js   | 18 ++++++++
 3 files changed, 53 insertions(+), 41 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 33b9baca24a..b186cb92f63 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -366,53 +366,27 @@ function genScopedSlots (
   })
   return `scopedSlots:_u([${
     Object.keys(slots).map(key => {
-      return genScopedSlot(key, slots[key], state)
+      return genScopedSlot(slots[key], state)
     }).join(',')
   }]${hasDynamicKeys ? `,true` : ``})`
 }
 
 function genScopedSlot (
-  key: string,
   el: ASTElement,
   state: CodegenState
 ): string {
   if (el.if && !el.ifProcessed) {
-    return genIfScopedSlot(key, el, state)
+    return genIf(el, state, genScopedSlot, `null`)
   }
   if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
+    return genFor(el, state, genScopedSlot)
   }
   const fn = `function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
       ? genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`
-  return `{key:${key},fn:${fn}}`
-}
-
-function genIfScopedSlot (
-  key: string,
-  el: any,
-  state: CodegenState
-): string {
-  el.ifProcessed = true
-  return `(${el.if})?${genScopedSlot(key, el, state)}:null`
-}
-
-function genForScopedSlot (
-  key: string,
-  el: any,
-  state: CodegenState
-): string {
-  const exp = el.for
-  const alias = el.alias
-  const iterator1 = el.iterator1 ? `,${el.iterator1}` : ''
-  const iterator2 = el.iterator2 ? `,${el.iterator2}` : ''
-  el.forProcessed = true // avoid recursion
-  return `_l((${exp}),` +
-    `function(${alias}${iterator1}${iterator2}){` +
-      `return ${genScopedSlot(key, el, state)}` +
-    '})'
+  return `{key:${el.slotTarget || `"default"`},fn:${fn}}`
 }
 
 export function genChildren (
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 145d5638bb8..1e2a5e3904d 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -107,6 +107,7 @@ export function parse (
   }
 
   function closeElement (element) {
+    trimEndingWhitespace(element)
     if (!inVPre && !element.processed) {
       element = processElement(element, options)
     }
@@ -133,14 +134,25 @@ export function parse (
     if (currentParent && !element.forbidden) {
       if (element.elseif || element.else) {
         processIfConditions(element, currentParent)
-      } else if (element.slotScope) { // scoped slot
-        const name = element.slotTarget || '"default"'
-        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element
       } else {
+        if (element.slotScope) {
+          // scoped slot
+          // keep it in the children list so that v-else(-if) conditions can
+          // find it as the prev node.
+          const name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element
+        }
         currentParent.children.push(element)
         element.parent = currentParent
       }
     }
+
+    // final children cleanup
+    // filter out scoped slots
+    element.children = element.children.filter(c => !c.slotScope)
+    // remove trailing whitespace node again
+    trimEndingWhitespace(element)
+
     // check pre state
     if (element.pre) {
       inVPre = false
@@ -154,6 +166,20 @@ export function parse (
     }
   }
 
+  function trimEndingWhitespace (el) {
+    // remove trailing whitespace node
+    if (!inPre) {
+      let lastNode
+      while (
+        (lastNode = el.children[el.children.length - 1]) &&
+        lastNode.type === 3 &&
+        lastNode.text === ' '
+      ) {
+        el.children.pop()
+      }
+    }
+  }
+
   function checkRootConstraints (el) {
     if (el.tag === 'slot' || el.tag === 'template') {
       warnOnce(
@@ -268,13 +294,6 @@ export function parse (
 
     end (tag, start, end) {
       const element = stack[stack.length - 1]
-      if (!inPre) {
-        // remove trailing whitespace node
-        const lastNode = element.children[element.children.length - 1]
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-          element.children.pop()
-        }
-      }
       // pop stack
       stack.length -= 1
       currentParent = stack[stack.length - 1]
@@ -658,8 +677,9 @@ function processSlotContent (el) {
         const slots = el.scopedSlots || (el.scopedSlots = {})
         const { name, dynamic } = getSlotName(slotBinding)
         const slotContainer = slots[name] = createASTElement('template', [], el)
+        slotContainer.slotTarget = name
         slotContainer.slotTargetDynamic = dynamic
-        slotContainer.children = el.children
+        slotContainer.children = el.children.filter(c => !c.slotScope)
         slotContainer.slotScope = slotBinding.value || `_`
         // remove children as they are returned from scopedSlots now
         el.children = []
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 14d0ce4a876..fdfd763a791 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -827,6 +827,24 @@ describe('Component scoped slot', () => {
         expect(vm.$el.innerHTML.replace(/\s+/g, ' ')).toMatch(`b from foo one a from foo two `)
       }).then(done)
     })
+
+    it('should work with v-if/v-else', done => {
+      const vm = new Vue({
+        data: { flag: true },
+        template: `
+          <foo>
+            <template v-if="flag" v-slot:one="one">a {{ one }} </template>
+            <template v-else v-slot:two="two">b {{ two }} </template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(vm.$el.innerHTML).toBe(`a from foo one `)
+      vm.flag = false
+      waitForUpdate(() => {
+        expect(vm.$el.innerHTML).toBe(`b from foo two `)
+      }).then(done)
+    })
   })
 
   // 2.6 scoped slot perf optimization

From 3edb99920011d64516c30d45250988e39544e418 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Jan 2019 21:33:59 -0500
Subject: [PATCH 760/911] polish: warn against incorrect nested v-slot usage

---
 src/compiler/parser/index.js                       |  7 +++++++
 .../component/component-scoped-slot.spec.js        | 14 ++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 1e2a5e3904d..42db23760ec 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -642,6 +642,13 @@ function processSlotContent (el) {
               el
             )
           }
+          if (!maybeComponent(el.parent)) {
+            warn(
+              `<template v-slot> can only appear at the root level inside ` +
+              `the receiving the component`,
+              el
+            )
+          }
         }
         const { name, dynamic } = getSlotName(slotBinding)
         el.slotTarget = name
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index fdfd763a791..18264db98fc 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -845,6 +845,20 @@ describe('Component scoped slot', () => {
         expect(vm.$el.innerHTML).toBe(`b from foo two `)
       }).then(done)
     })
+
+    it('warn when v-slot used on non-root <template>', () => {
+      const vm = new Vue({
+        template: `
+          <foo>
+            <template v-if="true">
+              <template v-slot:one>foo</template>
+            </template>
+          </foo>
+        `,
+        components: { Foo }
+      }).$mount()
+      expect(`<template v-slot> can only appear at the root level`).toHaveBeenWarned()
+    })
   })
 
   // 2.6 scoped slot perf optimization

From 6afd96f2fdb59b1fce8ee7bf1cef4c348294959b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 30 Jan 2019 21:41:56 -0500
Subject: [PATCH 761/911] chore: fix flow

---
 src/compiler/parser/index.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 42db23760ec..05247cae2a0 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -149,7 +149,7 @@ export function parse (
 
     // final children cleanup
     // filter out scoped slots
-    element.children = element.children.filter(c => !c.slotScope)
+    element.children = element.children.filter(c => !(c: any).slotScope)
     // remove trailing whitespace node again
     trimEndingWhitespace(element)
 
@@ -642,7 +642,7 @@ function processSlotContent (el) {
               el
             )
           }
-          if (!maybeComponent(el.parent)) {
+          if (el.parent && !maybeComponent(el.parent)) {
             warn(
               `<template v-slot> can only appear at the root level inside ` +
               `the receiving the component`,
@@ -686,7 +686,7 @@ function processSlotContent (el) {
         const slotContainer = slots[name] = createASTElement('template', [], el)
         slotContainer.slotTarget = name
         slotContainer.slotTargetDynamic = dynamic
-        slotContainer.children = el.children.filter(c => !c.slotScope)
+        slotContainer.children = el.children.filter(c => !(c: any).slotScope)
         slotContainer.slotScope = slotBinding.value || `_`
         // remove children as they are returned from scopedSlots now
         el.children = []

From e632e9a0759532e1d902871ca07b02c9ac267e7c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 31 Jan 2019 09:56:18 -0500
Subject: [PATCH 762/911] fix: allow more enumerated values for contenteditable

close #9397
---
 src/platforms/web/runtime/modules/attrs.js |  5 +++--
 src/platforms/web/server/modules/attrs.js  |  5 +++--
 src/platforms/web/util/attrs.js            | 11 +++++++++++
 test/unit/features/directives/bind.spec.js | 16 ++++++++--------
 4 files changed, 25 insertions(+), 12 deletions(-)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index 61d004ed239..b1946ec5c6f 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -14,7 +14,8 @@ import {
   getXlinkProp,
   isBooleanAttr,
   isEnumeratedAttr,
-  isFalsyAttrValue
+  isFalsyAttrValue,
+  convertEnumeratedValue
 } from 'web/util/index'
 
 function updateAttrs (oldVnode: VNodeWithData, vnode: VNodeWithData) {
@@ -75,7 +76,7 @@ function setAttr (el: Element, key: string, value: any) {
       el.setAttribute(key, value)
     }
   } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true')
+    el.setAttribute(key, convertEnumeratedValue(key, value))
   } else if (isXlink(key)) {
     if (isFalsyAttrValue(value)) {
       el.removeAttributeNS(xlinkNS, getXlinkProp(key))
diff --git a/src/platforms/web/server/modules/attrs.js b/src/platforms/web/server/modules/attrs.js
index c3f73013e34..4d48eeed2da 100644
--- a/src/platforms/web/server/modules/attrs.js
+++ b/src/platforms/web/server/modules/attrs.js
@@ -11,7 +11,8 @@ import {
 import {
   isBooleanAttr,
   isEnumeratedAttr,
-  isFalsyAttrValue
+  isFalsyAttrValue,
+  convertEnumeratedValue
 } from 'web/util/attrs'
 
 import { isSSRUnsafeAttr } from 'web/server/util'
@@ -54,7 +55,7 @@ export function renderAttr (key: string, value: string): string {
       return ` ${key}="${key}"`
     }
   } else if (isEnumeratedAttr(key)) {
-    return ` ${key}="${isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true'}"`
+    return ` ${key}="${escape(convertEnumeratedValue(key, value))}"`
   } else if (!isFalsyAttrValue(value)) {
     return ` ${key}="${escape(String(value))}"`
   }
diff --git a/src/platforms/web/util/attrs.js b/src/platforms/web/util/attrs.js
index 59517da9add..fea9fb981ad 100644
--- a/src/platforms/web/util/attrs.js
+++ b/src/platforms/web/util/attrs.js
@@ -19,6 +19,17 @@ export const mustUseProp = (tag: string, type: ?string, attr: string): boolean =
 
 export const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck')
 
+const isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only')
+
+export const convertEnumeratedValue = (key: string, value: any) => {
+  return isFalsyAttrValue(value) || value === 'false'
+    ? 'false'
+    // allow arbitrary string value for contenteditable
+    : key === 'contenteditable' && isValidContentEditableValue(value)
+      ? value
+      : 'true'
+}
+
 export const isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index d0222450a50..f2c70ac5d51 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -69,25 +69,25 @@ describe('Directive v-bind', () => {
 
   it('enumerated attr', done => {
     const vm = new Vue({
-      template: '<div><span :draggable="foo">hello</span></div>',
+      template: '<div><span :contenteditable="foo">hello</span></div>',
       data: { foo: true }
     }).$mount()
-    expect(vm.$el.firstChild.getAttribute('draggable')).toBe('true')
-    vm.foo = 'again'
+    expect(vm.$el.firstChild.getAttribute('contenteditable')).toBe('true')
+    vm.foo = 'plaintext-only' // allow special values
     waitForUpdate(() => {
-      expect(vm.$el.firstChild.getAttribute('draggable')).toBe('true')
+      expect(vm.$el.firstChild.getAttribute('contenteditable')).toBe('plaintext-only')
       vm.foo = null
     }).then(() => {
-      expect(vm.$el.firstChild.getAttribute('draggable')).toBe('false')
+      expect(vm.$el.firstChild.getAttribute('contenteditable')).toBe('false')
       vm.foo = ''
     }).then(() => {
-      expect(vm.$el.firstChild.getAttribute('draggable')).toBe('true')
+      expect(vm.$el.firstChild.getAttribute('contenteditable')).toBe('true')
       vm.foo = false
     }).then(() => {
-      expect(vm.$el.firstChild.getAttribute('draggable')).toBe('false')
+      expect(vm.$el.firstChild.getAttribute('contenteditable')).toBe('false')
       vm.foo = 'false'
     }).then(() => {
-      expect(vm.$el.firstChild.getAttribute('draggable')).toBe('false')
+      expect(vm.$el.firstChild.getAttribute('contenteditable')).toBe('false')
     }).then(done)
   })
 

From e1db2c5bf66fca3d219683682690cd33921dd5c5 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Thu, 31 Jan 2019 10:04:43 -0500
Subject: [PATCH 763/911] chore: update sponsors [ci skip] (#9400)

---
 BACKERS.md | 7 ++++++-
 README.md  | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 3bc0a605e56..3c841620060 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -194,6 +194,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://intygrate.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/intygrate.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
diff --git a/README.md b/README.md
index 085732ecab2..7c8b7228de8 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -199,6 +199,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://intygrate.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/intygrate.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">

From 539e481f38706a6202f0eacf54c579362fbd5bb4 Mon Sep 17 00:00:00 2001
From: Filipe Amaral <filipe@britecore.com>
Date: Thu, 31 Jan 2019 13:08:35 -0200
Subject: [PATCH 764/911] fix: fix v-bind:style for camelCase properties with
 !important  (#9386)

---
 src/platforms/web/runtime/modules/style.js  | 4 ++--
 test/unit/features/directives/style.spec.js | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/modules/style.js b/src/platforms/web/runtime/modules/style.js
index 29e1c3c1e6e..4d2d39dd6ea 100644
--- a/src/platforms/web/runtime/modules/style.js
+++ b/src/platforms/web/runtime/modules/style.js
@@ -1,7 +1,7 @@
 /* @flow */
 
 import { getStyle, normalizeStyleBinding } from 'web/util/style'
-import { cached, camelize, extend, isDef, isUndef } from 'shared/util'
+import { cached, camelize, extend, isDef, isUndef, hyphenate } from 'shared/util'
 
 const cssVarRE = /^--/
 const importantRE = /\s*!important$/
@@ -10,7 +10,7 @@ const setProp = (el, name, val) => {
   if (cssVarRE.test(name)) {
     el.style.setProperty(name, val)
   } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important')
+    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important')
   } else {
     const normalizedName = normalize(name)
     if (Array.isArray(val)) {
diff --git a/test/unit/features/directives/style.spec.js b/test/unit/features/directives/style.spec.js
index 43f527be71d..d611ca4a4fc 100644
--- a/test/unit/features/directives/style.spec.js
+++ b/test/unit/features/directives/style.spec.js
@@ -101,6 +101,13 @@ describe('Directive v-bind:style', () => {
     }).then(done)
   })
 
+  it('camelCase with !important', done => {
+    vm.styles = { zIndex: '100 !important' }
+    waitForUpdate(() => {
+      expect(vm.$el.style.getPropertyPriority('z-index')).toBe('important')
+    }).then(done)
+  })
+
   it('object with multiple entries', done => {
     vm.$el.style.color = 'red'
     vm.styles = {

From 44a17ba2cde7fb9a673486d44de7f29feb5c1882 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 31 Jan 2019 10:24:41 -0500
Subject: [PATCH 765/911] fix: fix child forceUpdate regression

close #9396
---
 .../vdom/helpers/normalize-scoped-slots.js    |  2 +-
 .../modules/vdom/patch/edge-cases.spec.js     | 23 +++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index aa78838e770..fcb2fcbfb25 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -26,7 +26,7 @@ export function normalizeScopedSlots (
     }
   }
   res._normalized = true
-  res.$stable = slots && slots.$stable
+  res.$stable = slots ? slots.$stable : true
   return res
 }
 
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index a1c492d4b3e..dd8895bc0d0 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -410,4 +410,27 @@ describe('vdom patch: edge cases', () => {
     expect(vm.$el.textContent).toBe('FooBar')
     expect(inlineHookSpy.calls.count()).toBe(2)
   })
+
+  // regression #9396
+  it('should not force update child with no slot content', done => {
+    const Child = {
+      updated: jasmine.createSpy(),
+      template: `<div></div>`
+    }
+
+    const parent = new Vue({
+      template: `<div>{{ count }}<child/></div>`,
+      data: {
+        count: 0
+      },
+      components: { Child }
+    }).$mount()
+
+    expect(parent.$el.textContent).toBe(`0`)
+    parent.count++
+    waitForUpdate(() => {
+      expect(parent.$el.textContent).toBe(`1`)
+      expect(Child.updated).not.toHaveBeenCalled()
+    }).then(done)
+  })
 })

From 64f863bbb9c8147819ef4547dfdadba0239c6d59 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 2 Feb 2019 10:49:01 -0500
Subject: [PATCH 766/911] feat: move v-bind.prop shorthand behind flag

---
 scripts/feature-flags.js                   |  3 +-
 src/compiler/parser/index.js               |  6 ++-
 test/unit/features/directives/bind.spec.js | 54 ++++++++++++----------
 test/unit/modules/compiler/parser.spec.js  | 26 ++++++-----
 4 files changed, 49 insertions(+), 40 deletions(-)

diff --git a/scripts/feature-flags.js b/scripts/feature-flags.js
index 3ad11b32d22..7df14317ff1 100644
--- a/scripts/feature-flags.js
+++ b/scripts/feature-flags.js
@@ -1,3 +1,4 @@
 module.exports = {
-  NEW_SLOT_SYNTAX: true
+  NEW_SLOT_SYNTAX: true,
+  VBIND_PROP_SHORTHAND: false
 }
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 05247cae2a0..ec0e302c68f 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -22,7 +22,9 @@ import {
 } from '../helpers'
 
 export const onRE = /^@|^v-on:/
-export const dirRE = /^v-|^@|^:|^\./
+export const dirRE = process.env.VBIND_PROP_SHORTHAND
+  ? /^v-|^@|^:|^\./
+  : /^v-|^@|^:/
 export const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
@@ -753,7 +755,7 @@ function processAttrs (el) {
       // modifiers
       modifiers = parseModifiers(name.replace(dirRE, ''))
       // support .foo shorthand syntax for the .prop modifier
-      if (propBindRE.test(name)) {
+      if (process.env.VBIND_PROP_SHORTHAND && propBindRE.test(name)) {
         (modifiers || (modifiers = {})).prop = true
         name = `.` + name.slice(1).replace(modifierRE, '')
       } else if (modifiers) {
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index f2c70ac5d51..3d29c984369 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -133,17 +133,19 @@ describe('Directive v-bind', () => {
     expect(vm.$el.getAttribute('id')).toBe(null)
   })
 
-  it('.prop modifier shorthand', () => {
-    const vm = new Vue({
-      template: '<div><span .text-content="foo"></span><span .inner-html="bar"></span></div>',
-      data: {
-        foo: 'hello',
-        bar: '<span>qux</span>'
-      }
-    }).$mount()
-    expect(vm.$el.children[0].textContent).toBe('hello')
-    expect(vm.$el.children[1].innerHTML).toBe('<span>qux</span>')
-  })
+  if (process.env.VBIND_PROP_SHORTHAND) {
+    it('.prop modifier shorthand', () => {
+      const vm = new Vue({
+        template: '<div><span .text-content="foo"></span><span .inner-html="bar"></span></div>',
+        data: {
+          foo: 'hello',
+          bar: '<span>qux</span>'
+        }
+      }).$mount()
+      expect(vm.$el.children[0].textContent).toBe('hello')
+      expect(vm.$el.children[1].innerHTML).toBe('<span>qux</span>')
+    })
+  }
 
   it('.camel modifier', () => {
     const vm = new Vue({
@@ -529,20 +531,22 @@ describe('Directive v-bind', () => {
       }).then(done)
     })
 
-    it('.prop shorthand', done => {
-      const vm = new Vue({
-        template: `<div .[key]="value"></div>`,
-        data: {
-          key: 'id',
-          value: 'hello'
-        }
-      }).$mount()
-      expect(vm.$el.id).toBe('hello')
-      vm.key = 'textContent'
-      waitForUpdate(() => {
-        expect(vm.$el.textContent).toBe('hello')
-      }).then(done)
-    })
+    if (process.env.VBIND_PROP_SHORTHAND) {
+      it('.prop shorthand', done => {
+        const vm = new Vue({
+          template: `<div .[key]="value"></div>`,
+          data: {
+            key: 'id',
+            value: 'hello'
+          }
+        }).$mount()
+        expect(vm.$el.id).toBe('hello')
+        vm.key = 'textContent'
+        waitForUpdate(() => {
+          expect(vm.$el.textContent).toBe('hello')
+        }).then(done)
+      })
+    }
 
     it('handle class and style', () => {
       const vm = new Vue({
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 08f1745fc67..e81f30ca479 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -535,20 +535,22 @@ describe('parser', () => {
     expect('The value for a v-bind expression cannot be empty. Found in "v-bind:empty-msg"').toHaveBeenWarned()
   })
 
-  it('v-bind.prop shorthand syntax', () => {
-    const ast = parse('<div .id="foo"></div>', baseOptions)
-    expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: false }])
-  })
+  if (process.env.VBIND_PROP_SHORTHAND) {
+    it('v-bind.prop shorthand syntax', () => {
+      const ast = parse('<div .id="foo"></div>', baseOptions)
+      expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: false }])
+    })
 
-  it('v-bind.prop shorthand syntax w/ modifiers', () => {
-    const ast = parse('<div .id.mod="foo"></div>', baseOptions)
-    expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: false }])
-  })
+    it('v-bind.prop shorthand syntax w/ modifiers', () => {
+      const ast = parse('<div .id.mod="foo"></div>', baseOptions)
+      expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: false }])
+    })
 
-  it('v-bind dynamic argument', () => {
-    const ast = parse('<div .[id]="foo"></div>', baseOptions)
-    expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: true }])
-  })
+    it('v-bind.prop shorthand dynamic argument', () => {
+      const ast = parse('<div .[id]="foo"></div>', baseOptions)
+      expect(ast.props).toEqual([{ name: 'id', value: 'foo', dynamic: true }])
+    })
+  }
 
   // This only works for string templates.
   // In-DOM templates will be malformed before Vue can parse it.

From 9b33f206f82a9fcea6e78de37e7624cd4b7431b8 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Sat, 2 Feb 2019 10:53:46 -0500
Subject: [PATCH 767/911] chore: update sponsors [ci skip] (#9405)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 3c841620060..b86d573f7a6 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -209,6 +209,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.bacancytechnology.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 7c8b7228de8..6d63d8f92d3 100644
--- a/README.md
+++ b/README.md
@@ -214,6 +214,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.bacancytechnology.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 076dc8d84facb3a62700b73e69804eca9f47ae50 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 10:57:00 -0500
Subject: [PATCH 768/911] build: build 2.6.0

---
 dist/vue.common.dev.js                      | 115 ++++++++++++--------
 dist/vue.common.prod.js                     |   4 +-
 dist/vue.esm.browser.js                     | 115 ++++++++++++--------
 dist/vue.esm.browser.min.js                 |   4 +-
 dist/vue.esm.js                             | 115 ++++++++++++--------
 dist/vue.js                                 | 115 ++++++++++++--------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.dev.js              |  23 +++-
 dist/vue.runtime.common.prod.js             |   4 +-
 dist/vue.runtime.esm.js                     |  23 +++-
 dist/vue.runtime.js                         |  23 +++-
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 109 +++++++++++--------
 packages/vue-server-renderer/build.dev.js   | 109 +++++++++++--------
 packages/vue-server-renderer/build.prod.js  |   2 +-
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  94 +++++++++-------
 packages/vue-template-compiler/build.js     |  94 +++++++++-------
 packages/vue-template-compiler/package.json |   2 +-
 19 files changed, 572 insertions(+), 389 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 71dc2406961..0954e9b95cb 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2752,7 +2752,7 @@ function resolveScopedSlots (
     var slot = fns[i];
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else {
+    } else if (slot) {
       res[slot.key] = slot.fn;
     }
   }
@@ -3899,7 +3899,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
-  res.$stable = slots && slots.$stable;
+  res.$stable = slots ? slots.$stable : true;
   return res
 }
 
@@ -5319,7 +5319,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.3';
+Vue.version = '2.6.0';
 
 /*  */
 
@@ -5340,6 +5340,17 @@ var mustUseProp = function (tag, type, attr) {
 
 var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+var convertEnumeratedValue = function (key, value) {
+  return isFalsyAttrValue(value) || value === 'false'
+    ? 'false'
+    // allow arbitrary string value for contenteditable
+    : key === 'contenteditable' && isValidContentEditableValue(value)
+      ? value
+      : 'true'
+};
+
 var isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -6607,7 +6618,7 @@ function setAttr (el, key, value) {
       el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+    el.setAttribute(key, convertEnumeratedValue(key, value));
   } else if (isXlink(key)) {
     if (isFalsyAttrValue(value)) {
       el.removeAttributeNS(xlinkNS, getXlinkProp(key));
@@ -7622,7 +7633,7 @@ var setProp = function (el, name, val) {
   if (cssVarRE.test(name)) {
     el.style.setProperty(name, val);
   } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
   } else {
     var normalizedName = normalize(name);
     if (Array.isArray(val)) {
@@ -9380,7 +9391,7 @@ function parseHTML (html, options) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:|^\./;
+var dirRE = /^v-|^@|^:/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -9388,7 +9399,6 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
@@ -9465,6 +9475,7 @@ function parse (
   }
 
   function closeElement (element) {
+    trimEndingWhitespace(element);
     if (!inVPre && !element.processed) {
       element = processElement(element, options);
     }
@@ -9491,14 +9502,25 @@ function parse (
     if (currentParent && !element.forbidden) {
       if (element.elseif || element.else) {
         processIfConditions(element, currentParent);
-      } else if (element.slotScope) { // scoped slot
-        var name = element.slotTarget || '"default"'
-        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
       } else {
+        if (element.slotScope) {
+          // scoped slot
+          // keep it in the children list so that v-else(-if) conditions can
+          // find it as the prev node.
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        }
         currentParent.children.push(element);
         element.parent = currentParent;
       }
     }
+
+    // final children cleanup
+    // filter out scoped slots
+    element.children = element.children.filter(function (c) { return !(c).slotScope; });
+    // remove trailing whitespace node again
+    trimEndingWhitespace(element);
+
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -9512,6 +9534,20 @@ function parse (
     }
   }
 
+  function trimEndingWhitespace (el) {
+    // remove trailing whitespace node
+    if (!inPre) {
+      var lastNode;
+      while (
+        (lastNode = el.children[el.children.length - 1]) &&
+        lastNode.type === 3 &&
+        lastNode.text === ' '
+      ) {
+        el.children.pop();
+      }
+    }
+  }
+
   function checkRootConstraints (el) {
     if (el.tag === 'slot' || el.tag === 'template') {
       warnOnce(
@@ -9626,13 +9662,6 @@ function parse (
 
     end: function end (tag, start, end$1) {
       var element = stack[stack.length - 1];
-      if (!inPre) {
-        // remove trailing whitespace node
-        var lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-          element.children.pop();
-        }
-      }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
@@ -9976,6 +10005,13 @@ function processSlotContent (el) {
               el
             );
           }
+          if (el.parent && !maybeComponent(el.parent)) {
+            warn$2(
+              "<template v-slot> can only appear at the root level inside " +
+              "the receiving the component",
+              el
+            );
+          }
         }
         var ref = getSlotName(slotBinding);
         var name = ref.name;
@@ -10015,8 +10051,9 @@ function processSlotContent (el) {
         var name$1 = ref$1.name;
         var dynamic$1 = ref$1.dynamic;
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children;
+        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
         slotContainer.slotScope = slotBinding$1.value || "_";
         // remove children as they are returned from scopedSlots now
         el.children = [];
@@ -10083,10 +10120,7 @@ function processAttrs (el) {
       // modifiers
       modifiers = parseModifiers(name.replace(dirRE, ''));
       // support .foo shorthand syntax for the .prop modifier
-      if (propBindRE.test(name)) {
-        (modifiers || (modifiers = {})).prop = true;
-        name = "." + name.slice(1).replace(modifierRE, '');
-      } else if (modifiers) {
+      if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -11023,43 +11057,30 @@ function genScopedSlots (
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+    var slot = slots[key];
+    return slot.slotTargetDynamic || slot.if || slot.for
+  });
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
+      return genScopedSlot(slots[key], state)
     }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
-  key,
   el,
   state
 ) {
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state, genScopedSlot, "null")
+  }
   if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
+    return genFor(el, state, genScopedSlot)
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? el.if
-        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
+      ? genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
 
 function genChildren (
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index a7120650d9e..dff386f99e2 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var _=/-(\w)/g,b=g(function(e){return e.replace(_,function(e,t){return t?t.toUpperCase():""})}),$=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),w=/\B([A-Z])/g,C=g(function(e){return e.replace(w,"-$1").toLowerCase()});var x=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function A(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function O(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function S(e,t,n){}var T=function(e,t,n){return!1},N=function(e){return e};function E(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var 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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index c46ad2c100b..558c61e07b7 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2780,7 +2780,7 @@ function resolveScopedSlots (
     const slot = fns[i];
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else {
+    } else if (slot) {
       res[slot.key] = slot.fn;
     }
   }
@@ -3945,7 +3945,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
-  res.$stable = slots && slots.$stable;
+  res.$stable = slots ? slots.$stable : true;
   return res
 }
 
@@ -5352,7 +5352,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.3';
+Vue.version = '2.6.0';
 
 /*  */
 
@@ -5373,6 +5373,17 @@ const mustUseProp = (tag, type, attr) => {
 
 const isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+const isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+const convertEnumeratedValue = (key, value) => {
+  return isFalsyAttrValue(value) || value === 'false'
+    ? 'false'
+    // allow arbitrary string value for contenteditable
+    : key === 'contenteditable' && isValidContentEditableValue(value)
+      ? value
+      : 'true'
+};
+
 const isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -6637,7 +6648,7 @@ function setAttr (el, key, value) {
       el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+    el.setAttribute(key, convertEnumeratedValue(key, value));
   } else if (isXlink(key)) {
     if (isFalsyAttrValue(value)) {
       el.removeAttributeNS(xlinkNS, getXlinkProp(key));
@@ -7647,7 +7658,7 @@ const setProp = (el, name, val) => {
   if (cssVarRE.test(name)) {
     el.style.setProperty(name, val);
   } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
   } else {
     const normalizedName = normalize(name);
     if (Array.isArray(val)) {
@@ -9399,7 +9410,7 @@ function parseHTML (html, options) {
 /*  */
 
 const onRE = /^@|^v-on:/;
-const dirRE = /^v-|^@|^:|^\./;
+const dirRE = /^v-|^@|^:/;
 const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 const stripParensRE = /^\(|\)$/g;
@@ -9407,7 +9418,6 @@ const dynamicArgRE = /^\[.*\]$/;
 
 const argRE = /:(.*)$/;
 const bindRE = /^:|^\.|^v-bind:/;
-const propBindRE = /^\./;
 const modifierRE = /\.[^.]+/g;
 
 const slotRE = /^v-slot(:|$)|^#/;
@@ -9484,6 +9494,7 @@ function parse (
   }
 
   function closeElement (element) {
+    trimEndingWhitespace(element);
     if (!inVPre && !element.processed) {
       element = processElement(element, options);
     }
@@ -9510,14 +9521,25 @@ function parse (
     if (currentParent && !element.forbidden) {
       if (element.elseif || element.else) {
         processIfConditions(element, currentParent);
-      } else if (element.slotScope) { // scoped slot
-        const name = element.slotTarget || '"default"'
-        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
       } else {
+        if (element.slotScope) {
+          // scoped slot
+          // keep it in the children list so that v-else(-if) conditions can
+          // find it as the prev node.
+          const name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        }
         currentParent.children.push(element);
         element.parent = currentParent;
       }
     }
+
+    // final children cleanup
+    // filter out scoped slots
+    element.children = element.children.filter(c => !(c).slotScope);
+    // remove trailing whitespace node again
+    trimEndingWhitespace(element);
+
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -9531,6 +9553,20 @@ function parse (
     }
   }
 
+  function trimEndingWhitespace (el) {
+    // remove trailing whitespace node
+    if (!inPre) {
+      let lastNode;
+      while (
+        (lastNode = el.children[el.children.length - 1]) &&
+        lastNode.type === 3 &&
+        lastNode.text === ' '
+      ) {
+        el.children.pop();
+      }
+    }
+  }
+
   function checkRootConstraints (el) {
     if (el.tag === 'slot' || el.tag === 'template') {
       warnOnce(
@@ -9645,13 +9681,6 @@ function parse (
 
     end (tag, start, end) {
       const element = stack[stack.length - 1];
-      if (!inPre) {
-        // remove trailing whitespace node
-        const lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-          element.children.pop();
-        }
-      }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
@@ -9995,6 +10024,13 @@ function processSlotContent (el) {
               el
             );
           }
+          if (el.parent && !maybeComponent(el.parent)) {
+            warn$2(
+              `<template v-slot> can only appear at the root level inside ` +
+              `the receiving the component`,
+              el
+            );
+          }
         }
         const { name, dynamic } = getSlotName(slotBinding);
         el.slotTarget = name;
@@ -10030,8 +10066,9 @@ function processSlotContent (el) {
         const slots = el.scopedSlots || (el.scopedSlots = {});
         const { name, dynamic } = getSlotName(slotBinding);
         const slotContainer = slots[name] = createASTElement('template', [], el);
+        slotContainer.slotTarget = name;
         slotContainer.slotTargetDynamic = dynamic;
-        slotContainer.children = el.children;
+        slotContainer.children = el.children.filter(c => !(c).slotScope);
         slotContainer.slotScope = slotBinding.value || `_`;
         // remove children as they are returned from scopedSlots now
         el.children = [];
@@ -10098,10 +10135,7 @@ function processAttrs (el) {
       // modifiers
       modifiers = parseModifiers(name.replace(dirRE, ''));
       // support .foo shorthand syntax for the .prop modifier
-      if (propBindRE.test(name)) {
-        (modifiers || (modifiers = {})).prop = true;
-        name = `.` + name.slice(1).replace(modifierRE, '');
-      } else if (modifiers) {
+      if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -11084,46 +11118,33 @@ function genScopedSlots (
   slots,
   state
 ) {
-  const hasDynamicKeys = Object.keys(slots).some(key => slots[key].slotTargetDynamic);
+  const hasDynamicKeys = Object.keys(slots).some(key => {
+    const slot = slots[key];
+    return slot.slotTargetDynamic || slot.if || slot.for
+  });
   return `scopedSlots:_u([${
     Object.keys(slots).map(key => {
-      return genScopedSlot(key, slots[key], state)
+      return genScopedSlot(slots[key], state)
     }).join(',')
   }]${hasDynamicKeys ? `,true` : ``})`
 }
 
 function genScopedSlot (
-  key,
   el,
   state
 ) {
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state, genScopedSlot, `null`)
+  }
   if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
+    return genFor(el, state, genScopedSlot)
   }
   const fn = `function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
-      ? el.if
-        ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
-        : genChildren(el, state) || 'undefined'
+      ? genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`;
-  return `{key:${key},fn:${fn}}`
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  const exp = el.for;
-  const alias = el.alias;
-  const iterator1 = el.iterator1 ? `,${el.iterator1}` : '';
-  const iterator2 = el.iterator2 ? `,${el.iterator2}` : '';
-  el.forProcessed = true; // avoid recursion
-  return `_l((${exp}),` +
-    `function(${alias}${iterator1}${iterator2}){` +
-      `return ${genScopedSlot(key, el, state)}` +
-    '})'
+  return `{key:${el.slotTarget || `"default"`},fn:${fn}}`
 }
 
 function genChildren (
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 0b2eb5c3267..973ddbaa121 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const g=Object.prototype.hasOwnProperty;function y(t,e){return g.call(t,e)}function v(t){const e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}const $=/-(\w)/g,_=v(t=>t.replace($,(t,e)=>e?e.toUpperCase():"")),b=v(t=>t.charAt(0).toUpperCase()+t.slice(1)),w=/\B([A-Z])/g,C=v(t=>t.replace(w,"-$1").toLowerCase());const x=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){const o=arguments.length;return o?o>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;let n=t.length-e;const o=new Array(n);for(;n--;)o[n]=t[n+e];return o}function k(t,e){for(const n in e)t[n]=e[n];return t}function O(t){const e={};for(let n=0;n<t.length;n++)t[n]&&k(e,t[n]);return e}function S(t,e,n){}const T=(t,e,n)=>!1,N=t=>t;function E(t,e){if(t===e)return!0;const n=s(t),o=s(e);if(!n||!o)return!n&&!o&&String(t)===String(e);try{const n=Array.isArray(t),o=Array.isArray(e);if(n&&o)return 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n=vi[t],o=$i[t];return"_k($event.keyCode,"+`${JSON.stringify(t)},`+`${JSON.stringify(n)},`+"$event.key,"+`${JSON.stringify(o)}`+")"}var Ai={on:function(t,e){t.wrapListeners=(t=>`_g(${t},${e.value})`)},bind:function(t,e){t.wrapData=(n=>`_b(${n},'${t.tag}',${e.value},${e.modifiers&&e.modifiers.prop?"true":"false"}${e.modifiers&&e.modifiers.sync?",true":""})`)},cloak:S};class ki{constructor(t){this.options=t,this.warn=t.warn||ho,this.transforms=mo(t.modules,"transformCode"),this.dataGenFns=mo(t.modules,"genData"),this.directives=k(k({},Ai),t.directives);const e=t.isReservedTag||T;this.maybeComponent=(t=>!!t.component||!e(t.tag)),this.onceId=0,this.staticRenderFns=[],this.pre=!1}}function Oi(t,e){const n=new ki(e);return{render:`with(this){return ${t?Si(t,n):'_c("div")'}}`,staticRenderFns:n.staticRenderFns}}function Si(t,e){if(t.parent&&(t.pre=t.pre||t.parent.pre),t.staticRoot&&!t.staticProcessed)return Ti(t,e);if(t.once&&!t.onceProcessed)return Ni(t,e);if(t.for&&!t.forProcessed)return ji(t,e);if(t.if&&!t.ifProcessed)return Ei(t,e);if("template"!==t.tag||t.slotTarget||e.pre){if("slot"===t.tag)return function(t,e){const n=t.slotName||'"default"',o=Mi(t,e);let r=`_t(${n}${o?`,${o}`:""}`;const s=t.attrs&&`{${t.attrs.map(t=>`${_(t.name)}:${t.value}`).join(",")}}`,i=t.attrsMap["v-bind"];!s&&!i||o||(r+=",null");s&&(r+=`,${s}`);i&&(r+=`${s?"":",null"},${i}`);return r+")"}(t,e);{let n;if(t.component)n=function(t,e,n){const o=e.inlineTemplate?null:Mi(e,n,!0);return`_c(${t},${Li(e,n)}${o?`,${o}`:""})`}(t.component,t,e);else{let o;(!t.plain||t.pre&&e.maybeComponent(t))&&(o=Li(t,e));const r=t.inlineTemplate?null:Mi(t,e,!0);n=`_c('${t.tag}'${o?`,${o}`:""}${r?`,${r}`:""})`}for(let o=0;o<e.transforms.length;o++)n=e.transforms[o](t,n);return n}}return Mi(t,e)||"void 0"}function Ti(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${Si(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Ni(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ei(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${Si(t,e)},${e.onceId++},${n})`:Si(t,e)}return Ti(t,e)}function Ei(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Ni(t,n):Si(t,n)}}(t.ifConditions.slice(),e,n,o)}function ji(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||Si)(t,e)}`+"})"}function Li(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Ri(t.attrs)},`),t.props&&(n+=`domProps:${Ri(t.props)},`),t.events&&(n+=`${wi(t.events,!1)},`),t.nativeEvents&&(n+=`${wi(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e){const n=Object.keys(t).some(e=>{const n=t[e];return n.slotTargetDynamic||n.if||n.for});return`scopedSlots:_u([${Object.keys(t).map(n=>Ii(t[n],e)).join(",")}]${n?",true":""})`}(t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(1===n.type){const t=Oi(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Ri(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Ii(t,e){if(t.if&&!t.ifProcessed)return Ei(t,e,Ii,"null");if(t.for&&!t.forProcessed)return ji(t,e,Ii);const n=`function(${String(t.slotScope)}){`+`return ${"template"===t.tag?Mi(t,e)||"undefined":Si(t,e)}}`;return`{key:${t.slotTarget||'"default"'},fn:${n}}`}function Mi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||Si)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Di(r)||r.ifConditions&&r.ifConditions.some(t=>Di(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Pi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Di(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Pi(t,e){return 1===t.type?Si(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Fi(JSON.stringify(n.text))})`;var n,o}function Ri(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Fi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Fi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Hi(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Bi(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Hi(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Hi(t,c)),e[s]=a}}const Ui=(zi=function(t,e){const n=Qs(t.trim(),e);!1!==e.optimize&&hi(n,e);const o=Oi(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=zi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Bi(e)}});var zi;const{compile:Vi,compileToFunctions:Ki}=Ui(ui);let Ji;function qi(t){return(Ji=Ji||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Ji.innerHTML.indexOf("&#10;")>0}const Wi=!!U&&qi(!1),Zi=!!U&&qi(!0),Gi=v(t=>{const e=zn(t);return e&&e.innerHTML}),Xi=pn.prototype.$mount;pn.prototype.$mount=function(t,e){if((t=t&&zn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=Gi(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Ki(e,{outputSourceRange:!1,shouldDecodeNewlines:Wi,shouldDecodeNewlinesForHref:Zi,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return Xi.call(this,t,e)},pn.compile=Ki;export default pn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 69cb86389b3..e6d187601eb 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2758,7 +2758,7 @@ function resolveScopedSlots (
     var slot = fns[i];
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else {
+    } else if (slot) {
       res[slot.key] = slot.fn;
     }
   }
@@ -3912,7 +3912,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
-  res.$stable = slots && slots.$stable;
+  res.$stable = slots ? slots.$stable : true;
   return res
 }
 
@@ -5339,7 +5339,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.3';
+Vue.version = '2.6.0';
 
 /*  */
 
@@ -5360,6 +5360,17 @@ var mustUseProp = function (tag, type, attr) {
 
 var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+var convertEnumeratedValue = function (key, value) {
+  return isFalsyAttrValue(value) || value === 'false'
+    ? 'false'
+    // allow arbitrary string value for contenteditable
+    : key === 'contenteditable' && isValidContentEditableValue(value)
+      ? value
+      : 'true'
+};
+
 var isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -6629,7 +6640,7 @@ function setAttr (el, key, value) {
       el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+    el.setAttribute(key, convertEnumeratedValue(key, value));
   } else if (isXlink(key)) {
     if (isFalsyAttrValue(value)) {
       el.removeAttributeNS(xlinkNS, getXlinkProp(key));
@@ -7644,7 +7655,7 @@ var setProp = function (el, name, val) {
   if (cssVarRE.test(name)) {
     el.style.setProperty(name, val);
   } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
   } else {
     var normalizedName = normalize(name);
     if (Array.isArray(val)) {
@@ -9409,7 +9420,7 @@ function parseHTML (html, options) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:|^\./;
+var dirRE = /^v-|^@|^:/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -9417,7 +9428,6 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
@@ -9494,6 +9504,7 @@ function parse (
   }
 
   function closeElement (element) {
+    trimEndingWhitespace(element);
     if (!inVPre && !element.processed) {
       element = processElement(element, options);
     }
@@ -9520,14 +9531,25 @@ function parse (
     if (currentParent && !element.forbidden) {
       if (element.elseif || element.else) {
         processIfConditions(element, currentParent);
-      } else if (element.slotScope) { // scoped slot
-        var name = element.slotTarget || '"default"'
-        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
       } else {
+        if (element.slotScope) {
+          // scoped slot
+          // keep it in the children list so that v-else(-if) conditions can
+          // find it as the prev node.
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        }
         currentParent.children.push(element);
         element.parent = currentParent;
       }
     }
+
+    // final children cleanup
+    // filter out scoped slots
+    element.children = element.children.filter(function (c) { return !(c).slotScope; });
+    // remove trailing whitespace node again
+    trimEndingWhitespace(element);
+
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -9541,6 +9563,20 @@ function parse (
     }
   }
 
+  function trimEndingWhitespace (el) {
+    // remove trailing whitespace node
+    if (!inPre) {
+      var lastNode;
+      while (
+        (lastNode = el.children[el.children.length - 1]) &&
+        lastNode.type === 3 &&
+        lastNode.text === ' '
+      ) {
+        el.children.pop();
+      }
+    }
+  }
+
   function checkRootConstraints (el) {
     if (el.tag === 'slot' || el.tag === 'template') {
       warnOnce(
@@ -9655,13 +9691,6 @@ function parse (
 
     end: function end (tag, start, end$1) {
       var element = stack[stack.length - 1];
-      if (!inPre) {
-        // remove trailing whitespace node
-        var lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-          element.children.pop();
-        }
-      }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
@@ -10005,6 +10034,13 @@ function processSlotContent (el) {
               el
             );
           }
+          if (el.parent && !maybeComponent(el.parent)) {
+            warn$2(
+              "<template v-slot> can only appear at the root level inside " +
+              "the receiving the component",
+              el
+            );
+          }
         }
         var ref = getSlotName(slotBinding);
         var name = ref.name;
@@ -10044,8 +10080,9 @@ function processSlotContent (el) {
         var name$1 = ref$1.name;
         var dynamic$1 = ref$1.dynamic;
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children;
+        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
         slotContainer.slotScope = slotBinding$1.value || "_";
         // remove children as they are returned from scopedSlots now
         el.children = [];
@@ -10112,10 +10149,7 @@ function processAttrs (el) {
       // modifiers
       modifiers = parseModifiers(name.replace(dirRE, ''));
       // support .foo shorthand syntax for the .prop modifier
-      if (propBindRE.test(name)) {
-        (modifiers || (modifiers = {})).prop = true;
-        name = "." + name.slice(1).replace(modifierRE, '');
-      } else if (modifiers) {
+      if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -11057,43 +11091,30 @@ function genScopedSlots (
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+    var slot = slots[key];
+    return slot.slotTargetDynamic || slot.if || slot.for
+  });
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
+      return genScopedSlot(slots[key], state)
     }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
-  key,
   el,
   state
 ) {
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state, genScopedSlot, "null")
+  }
   if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
+    return genFor(el, state, genScopedSlot)
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? el.if
-        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
+      ? genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
 
 function genChildren (
diff --git a/dist/vue.js b/dist/vue.js
index 04558878dc4..b6171c06cd2 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2756,7 +2756,7 @@
       var slot = fns[i];
       if (Array.isArray(slot)) {
         resolveScopedSlots(slot, hasDynamicKeys, res);
-      } else {
+      } else if (slot) {
         res[slot.key] = slot.fn;
       }
     }
@@ -3903,7 +3903,7 @@
       }
     }
     res._normalized = true;
-    res.$stable = slots && slots.$stable;
+    res.$stable = slots ? slots.$stable : true;
     return res
   }
 
@@ -5323,7 +5323,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0-beta.3';
+  Vue.version = '2.6.0';
 
   /*  */
 
@@ -5344,6 +5344,17 @@
 
   var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+  var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+  var convertEnumeratedValue = function (key, value) {
+    return isFalsyAttrValue(value) || value === 'false'
+      ? 'false'
+      // allow arbitrary string value for contenteditable
+      : key === 'contenteditable' && isValidContentEditableValue(value)
+        ? value
+        : 'true'
+  };
+
   var isBooleanAttr = makeMap(
     'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
     'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -6611,7 +6622,7 @@
         el.setAttribute(key, value);
       }
     } else if (isEnumeratedAttr(key)) {
-      el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+      el.setAttribute(key, convertEnumeratedValue(key, value));
     } else if (isXlink(key)) {
       if (isFalsyAttrValue(value)) {
         el.removeAttributeNS(xlinkNS, getXlinkProp(key));
@@ -7626,7 +7637,7 @@
     if (cssVarRE.test(name)) {
       el.style.setProperty(name, val);
     } else if (importantRE.test(val)) {
-      el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+      el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
     } else {
       var normalizedName = normalize(name);
       if (Array.isArray(val)) {
@@ -9384,7 +9395,7 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:|^\./;
+  var dirRE = /^v-|^@|^:/;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
@@ -9392,7 +9403,6 @@
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
-  var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
   var slotRE = /^v-slot(:|$)|^#/;
@@ -9469,6 +9479,7 @@
     }
 
     function closeElement (element) {
+      trimEndingWhitespace(element);
       if (!inVPre && !element.processed) {
         element = processElement(element, options);
       }
@@ -9495,14 +9506,25 @@
       if (currentParent && !element.forbidden) {
         if (element.elseif || element.else) {
           processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
+          if (element.slotScope) {
+            // scoped slot
+            // keep it in the children list so that v-else(-if) conditions can
+            // find it as the prev node.
+            var name = element.slotTarget || '"default"'
+            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          }
           currentParent.children.push(element);
           element.parent = currentParent;
         }
       }
+
+      // final children cleanup
+      // filter out scoped slots
+      element.children = element.children.filter(function (c) { return !(c).slotScope; });
+      // remove trailing whitespace node again
+      trimEndingWhitespace(element);
+
       // check pre state
       if (element.pre) {
         inVPre = false;
@@ -9516,6 +9538,20 @@
       }
     }
 
+    function trimEndingWhitespace (el) {
+      // remove trailing whitespace node
+      if (!inPre) {
+        var lastNode;
+        while (
+          (lastNode = el.children[el.children.length - 1]) &&
+          lastNode.type === 3 &&
+          lastNode.text === ' '
+        ) {
+          el.children.pop();
+        }
+      }
+    }
+
     function checkRootConstraints (el) {
       if (el.tag === 'slot' || el.tag === 'template') {
         warnOnce(
@@ -9630,13 +9666,6 @@
 
       end: function end (tag, start, end$1) {
         var element = stack[stack.length - 1];
-        if (!inPre) {
-          // remove trailing whitespace node
-          var lastNode = element.children[element.children.length - 1];
-          if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-            element.children.pop();
-          }
-        }
         // pop stack
         stack.length -= 1;
         currentParent = stack[stack.length - 1];
@@ -9980,6 +10009,13 @@
                 el
               );
             }
+            if (el.parent && !maybeComponent(el.parent)) {
+              warn$2(
+                "<template v-slot> can only appear at the root level inside " +
+                "the receiving the component",
+                el
+              );
+            }
           }
           var ref = getSlotName(slotBinding);
           var name = ref.name;
@@ -10019,8 +10055,9 @@
           var name$1 = ref$1.name;
           var dynamic$1 = ref$1.dynamic;
           var slotContainer = slots[name$1] = createASTElement('template', [], el);
+          slotContainer.slotTarget = name$1;
           slotContainer.slotTargetDynamic = dynamic$1;
-          slotContainer.children = el.children;
+          slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
           slotContainer.slotScope = slotBinding$1.value || "_";
           // remove children as they are returned from scopedSlots now
           el.children = [];
@@ -10087,10 +10124,7 @@
         // modifiers
         modifiers = parseModifiers(name.replace(dirRE, ''));
         // support .foo shorthand syntax for the .prop modifier
-        if (propBindRE.test(name)) {
-          (modifiers || (modifiers = {})).prop = true;
-          name = "." + name.slice(1).replace(modifierRE, '');
-        } else if (modifiers) {
+        if (modifiers) {
           name = name.replace(modifierRE, '');
         }
         if (bindRE.test(name)) { // v-bind
@@ -11027,43 +11061,30 @@
     slots,
     state
   ) {
-    var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+    var hasDynamicKeys = Object.keys(slots).some(function (key) {
+      var slot = slots[key];
+      return slot.slotTargetDynamic || slot.if || slot.for
+    });
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-        return genScopedSlot(key, slots[key], state)
+        return genScopedSlot(slots[key], state)
       }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
-    key,
     el,
     state
   ) {
+    if (el.if && !el.ifProcessed) {
+      return genIf(el, state, genScopedSlot, "null")
+    }
     if (el.for && !el.forProcessed) {
-      return genForScopedSlot(key, el, state)
+      return genFor(el, state, genScopedSlot)
     }
     var fn = "function(" + (String(el.slotScope)) + "){" +
       "return " + (el.tag === 'template'
-        ? el.if
-          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-          : genChildren(el, state) || 'undefined'
+        ? genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
-    return ("{key:" + key + ",fn:" + fn + "}")
-  }
-
-  function genForScopedSlot (
-    key,
-    el,
-    state
-  ) {
-    var exp = el.for;
-    var alias = el.alias;
-    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-    el.forProcessed = true; // avoid recursion
-    return "_l((" + exp + ")," +
-      "function(" + alias + iterator1 + iterator2 + "){" +
-        "return " + (genScopedSlot(key, el, state)) +
-      '})'
+    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
   }
 
   function genChildren (
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 6570821aed6..fcdfb63b9b6 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index 5744263cee1..a8b3b9cac14 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2743,7 +2743,7 @@ function resolveScopedSlots (
     var slot = fns[i];
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else {
+    } else if (slot) {
       res[slot.key] = slot.fn;
     }
   }
@@ -3890,7 +3890,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
-  res.$stable = slots && slots.$stable;
+  res.$stable = slots ? slots.$stable : true;
   return res
 }
 
@@ -5310,7 +5310,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.3';
+Vue.version = '2.6.0';
 
 /*  */
 
@@ -5331,6 +5331,17 @@ var mustUseProp = function (tag, type, attr) {
 
 var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+var convertEnumeratedValue = function (key, value) {
+  return isFalsyAttrValue(value) || value === 'false'
+    ? 'false'
+    // allow arbitrary string value for contenteditable
+    : key === 'contenteditable' && isValidContentEditableValue(value)
+      ? value
+      : 'true'
+};
+
 var isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -6596,7 +6607,7 @@ function setAttr (el, key, value) {
       el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+    el.setAttribute(key, convertEnumeratedValue(key, value));
   } else if (isXlink(key)) {
     if (isFalsyAttrValue(value)) {
       el.removeAttributeNS(xlinkNS, getXlinkProp(key));
@@ -6974,7 +6985,7 @@ var setProp = function (el, name, val) {
   if (cssVarRE.test(name)) {
     el.style.setProperty(name, val);
   } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
   } else {
     var normalizedName = normalize(name);
     if (Array.isArray(val)) {
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index 07b4b40634c..88e8c8a1811 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var 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p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},xo=x({tag:String,moveClass:String},go);function Oo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function ko(t){t.data.newPos=t.elm.getBoundingClientRect()}function So(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete xo.mode;var Eo={Transition:$o,TransitionGroup:{props:xo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=ye(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=bo(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Oo),t.forEach(ko),t.forEach(So),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Xr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Vr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Vr,t),n._moveCb=null,Gr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Rr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Lr(n,t)}),Pr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Qr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};yn.config.mustUseProp=function(t,e,n){return"value"===n&&On(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},yn.config.isReservedTag=Bn,yn.config.isReservedAttr=xn,yn.config.getTagNamespace=function(t){return Hn(t)?"svg":"math"===t?"math":void 0},yn.config.isUnknownElement=function(t){if(!H)return!0;if(Bn(t))return!1;if(t=t.toLowerCase(),null!=Vn[t])return Vn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Vn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Vn[t]=/HTMLUnknownElement/.test(e.toString())},x(yn.options.directives,yo),x(yn.options.components,Eo),yn.prototype.__patch__=H?ao:k,yn.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=ft),be(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Ie(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&be(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,be(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&Y&&Y.emit("init",yn)},0),module.exports=yn;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index c5ecd7ac4c7..7f8407bb0e2 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2749,7 +2749,7 @@ function resolveScopedSlots (
     var slot = fns[i];
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else {
+    } else if (slot) {
       res[slot.key] = slot.fn;
     }
   }
@@ -3903,7 +3903,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
-  res.$stable = slots && slots.$stable;
+  res.$stable = slots ? slots.$stable : true;
   return res
 }
 
@@ -5330,7 +5330,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0-beta.3';
+Vue.version = '2.6.0';
 
 /*  */
 
@@ -5351,6 +5351,17 @@ var mustUseProp = function (tag, type, attr) {
 
 var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+var convertEnumeratedValue = function (key, value) {
+  return isFalsyAttrValue(value) || value === 'false'
+    ? 'false'
+    // allow arbitrary string value for contenteditable
+    : key === 'contenteditable' && isValidContentEditableValue(value)
+      ? value
+      : 'true'
+};
+
 var isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -6618,7 +6629,7 @@ function setAttr (el, key, value) {
       el.setAttribute(key, value);
     }
   } else if (isEnumeratedAttr(key)) {
-    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+    el.setAttribute(key, convertEnumeratedValue(key, value));
   } else if (isXlink(key)) {
     if (isFalsyAttrValue(value)) {
       el.removeAttributeNS(xlinkNS, getXlinkProp(key));
@@ -6996,7 +7007,7 @@ var setProp = function (el, name, val) {
   if (cssVarRE.test(name)) {
     el.style.setProperty(name, val);
   } else if (importantRE.test(val)) {
-    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
   } else {
     var normalizedName = normalize(name);
     if (Array.isArray(val)) {
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index ab4c4eabdca..e29bc242e7b 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2747,7 +2747,7 @@
       var slot = fns[i];
       if (Array.isArray(slot)) {
         resolveScopedSlots(slot, hasDynamicKeys, res);
-      } else {
+      } else if (slot) {
         res[slot.key] = slot.fn;
       }
     }
@@ -3894,7 +3894,7 @@
       }
     }
     res._normalized = true;
-    res.$stable = slots && slots.$stable;
+    res.$stable = slots ? slots.$stable : true;
     return res
   }
 
@@ -5314,7 +5314,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0-beta.3';
+  Vue.version = '2.6.0';
 
   /*  */
 
@@ -5335,6 +5335,17 @@
 
   var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+  var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+  var convertEnumeratedValue = function (key, value) {
+    return isFalsyAttrValue(value) || value === 'false'
+      ? 'false'
+      // allow arbitrary string value for contenteditable
+      : key === 'contenteditable' && isValidContentEditableValue(value)
+        ? value
+        : 'true'
+  };
+
   var isBooleanAttr = makeMap(
     'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
     'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -6600,7 +6611,7 @@
         el.setAttribute(key, value);
       }
     } else if (isEnumeratedAttr(key)) {
-      el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
+      el.setAttribute(key, convertEnumeratedValue(key, value));
     } else if (isXlink(key)) {
       if (isFalsyAttrValue(value)) {
         el.removeAttributeNS(xlinkNS, getXlinkProp(key));
@@ -6978,7 +6989,7 @@
     if (cssVarRE.test(name)) {
       el.style.setProperty(name, val);
     } else if (importantRE.test(val)) {
-      el.style.setProperty(name, val.replace(importantRE, ''), 'important');
+      el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');
     } else {
       var normalizedName = normalize(name);
       if (Array.isArray(val)) {
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 07e88d15c09..f60949b11e2 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0-beta.3
+ * Vue.js v2.6.0
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return 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WXEnvironment&&!!WXEnvironment.platform,B=V&&WXEnvironment.platform.toLowerCase(),z=H&&window.navigator.userAgent.toLowerCase(),W=z&&/msie|trident/.test(z),q=z&&z.indexOf("msie 9.0")>0,K=z&&z.indexOf("edge/")>0,X=(z&&z.indexOf("android"),z&&/iphone|ipad|ipod|ios/.test(z)||"ios"===B),G=(z&&/chrome\/\d+/.test(z),z&&/phantomjs/.test(z),{}.watch),Z=!1;if(H)try{var J={};Object.defineProperty(J,"passive",{get:function(){Z=!0}}),window.addEventListener("test-passive",null,J)}catch(t){}var Q=function(){return void 0===R&&(R=!H&&!V&&"undefined"!=typeof global&&(global.process&&"server"===global.process.env.VUE_ENV)),R},Y=H&&window.__VUE_DEVTOOLS_GLOBAL_HOOK__;function tt(t){return"function"==typeof t&&/native code/.test(t.toString())}var et,nt="undefined"!=typeof Symbol&&tt(Symbol)&&"undefined"!=typeof Reflect&&tt(Reflect.ownKeys);et="undefined"!=typeof Set&&tt(Set)?Set:function(){function t(){this.set=Object.create(null)}return 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w(){A.cancelled||(!t.data.show&&o.parentNode&&((o.parentNode._pending||(o.parentNode._pending={}))[t.key]=t),d&&d(o),_&&(Xr(o,u),Xr(o,p),Kr(function(){Gr(o,u),A.cancelled||(Xr(o,l),b||(ro(C)?setTimeout(A,C):Zr(o,c,A)))})),v&&v(o,A),_||b||A())}}function ro(t){return"number"==typeof t&&!isNaN(t)}function oo(t){if(e(t))return!1;var r=t.fns;return n(r)?oo(Array.isArray(r)?r[0]:r):(t._length||t.length)>1}function io(t,e){!0!==e.data.show&&eo(e)}var ao=function(t){var i,a,s={},c=t.modules,u=t.nodeOps;for(i=0;i<Gn.length;++i)for(s[Gn[i]]=[],a=0;a<c.length;++a)n(c[a][Gn[i]])&&s[Gn[i]].push(c[a][Gn[i]]);function l(t){var e=u.parentNode(t);n(e)&&u.removeChild(e,t)}function f(t,e,o,i,a,c,l){if(n(t.elm)&&n(c)&&(t=c[l]=dt(t)),t.isRootInsert=!a,!function(t,e,o,i){var a=t.data;if(n(a)){var c=n(t.componentInstance)&&a.keepAlive;if(n(a=a.hook)&&n(a=a.init)&&a(t,!1),n(t.componentInstance))return d(t,e),v(o,t.elm,i),r(c)&&function(t,e,r,o){for(var i,a=t;a.componentInstance;)if(a=a.componentInstance._vnode,n(i=a.data)&&n(i=i.transition)){for(i=0;i<s.activate.length;++i)s.activate[i](Xn,a);e.push(a);break}v(r,t.elm,o)}(t,e,o,i),!0}}(t,e,o,i)){var f=t.data,p=t.children,m=t.tag;n(m)?(t.elm=t.ns?u.createElementNS(t.ns,m):u.createElement(m,t),g(t),h(t,p,e),n(f)&&y(t,e),v(o,t.elm,i)):r(t.isComment)?(t.elm=u.createComment(t.text),v(o,t.elm,i)):(t.elm=u.createTextNode(t.text),v(o,t.elm,i))}}function d(t,e){n(t.data.pendingInsert)&&(e.push.apply(e,t.data.pendingInsert),t.data.pendingInsert=null),t.elm=t.componentInstance.$el,m(t)?(y(t,e),g(t)):(Kn(t),e.push(t))}function v(t,e,r){n(t)&&(n(r)?u.parentNode(r)===t&&u.insertBefore(t,e,r):u.appendChild(t,e))}function h(t,e,n){if(Array.isArray(e))for(var r=0;r<e.length;++r)f(e[r],n,t.elm,null,!0,e,r);else o(t.text)&&u.appendChild(t.elm,u.createTextNode(String(t.text)))}function m(t){for(;t.componentInstance;)t=t.componentInstance._vnode;return n(t.tag)}function y(t,e){for(var r=0;r<s.create.length;++r)s.create[r](Xn,t);n(i=t.data.hook)&&(n(i.create)&&i.create(Xn,t),n(i.insert)&&e.push(t))}function g(t){var e;if(n(e=t.fnScopeId))u.setStyleScope(t.elm,e);else for(var r=t;r;)n(e=r.context)&&n(e=e.$options._scopeId)&&u.setStyleScope(t.elm,e),r=r.parent;n(e=me)&&e!==t.context&&e!==t.fnContext&&n(e=e.$options._scopeId)&&u.setStyleScope(t.elm,e)}function _(t,e,n,r,o,i){for(;r<=o;++r)f(n[r],i,t,e,!1,n,r)}function b(t){var e,r,o=t.data;if(n(o))for(n(e=o.hook)&&n(e=e.destroy)&&e(t),e=0;e<s.destroy.length;++e)s.destroy[e](t);if(n(e=t.children))for(r=0;r<t.children.length;++r)b(t.children[r])}function C(t,e,r,o){for(;r<=o;++r){var i=e[r];n(i)&&(n(i.tag)?(A(i),b(i)):l(i.elm))}}function A(t,e){if(n(e)||n(t.data)){var r,o=s.remove.length+1;for(n(e)?e.listeners+=o:e=function(t,e){function n(){0==--n.listeners&&l(t)}return 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O=p("attrs,class,staticClass,staticStyle,key");function k(t,e,o,i){var a,s=e.tag,c=e.data,u=e.children;if(i=i||c&&c.pre,e.elm=t,r(e.isComment)&&n(e.asyncFactory))return e.isAsyncPlaceholder=!0,!0;if(n(c)&&(n(a=c.hook)&&n(a=a.init)&&a(e,!0),n(a=e.componentInstance)))return d(e,o),!0;if(n(s)){if(n(u))if(t.hasChildNodes())if(n(a=c)&&n(a=a.domProps)&&n(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var l=!0,f=t.firstChild,p=0;p<u.length;p++){if(!f||!k(f,u[p],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Jt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,p=[];if(e(t))l=!0,f(o,p);else{var d=n(t.nodeType);if(!d&&Zn(t,o))$(t,o,p,null,null,a);else{if(d){if(1===t.nodeType&&t.hasAttribute(D)&&(t.removeAttribute(D),i=!0),r(i)&&k(t,o,p))return x(o,p,!0),t;c=t,t=new ut(u.tagName(c).toLowerCase(),{},[],void 0,c)}var 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so={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){so.componentUpdated(t,e,n)}):co(t,e,n.context),t._vOptions=[].map.call(t.options,fo)):("textarea"===n.tag||zn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",po),t.addEventListener("compositionend",vo),t.addEventListener("change",vo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){co(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,fo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return lo(t,o)}):e.value!==e.oldValue&&lo(e.value,o))&&ho(t,"change")}}};function co(t,e,n){uo(t,e,n),(W||K)&&setTimeout(function(){uo(t,e,n)},0)}function uo(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,fo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(fo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function lo(t,e){return e.every(function(e){return!j(e,t)})}function fo(t){return"_value"in t?t._value:t.value}function po(t){t.target.composing=!0}function vo(t){t.target.composing&&(t.target.composing=!1,ho(t.target,"input"))}function ho(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function mo(t){return!t.componentInstance||t.data&&t.data.transition?t:mo(t.componentInstance._vnode)}var yo={model:so,show:{bind:function(t,e,n){var r=e.value,o=(n=mo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,eo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=mo(n)).data&&n.data.transition?(n.data.show=!0,r?eo(n,function(){t.style.display=t.__vOriginalDisplay}):no(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},go={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function _o(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?_o(ce(e.children)):t}function bo(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Co(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var Ao=function(t){return t.tag||se(t)},wo=function(t){return"show"===t.name},$o={name:"transition",props:go,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(Ao)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=_o(i);if(!a)return i;if(this._leaving)return Co(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=bo(this),u=this._vnode,l=_o(u);if(a.data.directives&&a.data.directives.some(wo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!se(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Co(t,i);if("in-out"===r){if(se(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},xo=x({tag:String,moveClass:String},go);function Oo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function ko(t){t.data.newPos=t.elm.getBoundingClientRect()}function So(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete xo.mode;var Eo={Transition:$o,TransitionGroup:{props:xo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=ye(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=bo(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Oo),t.forEach(ko),t.forEach(So),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Xr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Br,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Br,t),n._moveCb=null,Gr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Rr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Lr(n,t)}),Pr(n,e),n.style.display="none",this.$el.appendChild(n);var r=Qr(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return yn.config.mustUseProp=function(t,e,n){return"value"===n&&On(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},yn.config.isReservedTag=Vn,yn.config.isReservedAttr=xn,yn.config.getTagNamespace=function(t){return Hn(t)?"svg":"math"===t?"math":void 0},yn.config.isUnknownElement=function(t){if(!H)return!0;if(Vn(t))return!1;if(t=t.toLowerCase(),null!=Bn[t])return Bn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Bn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Bn[t]=/HTMLUnknownElement/.test(e.toString())},x(yn.options.directives,yo),x(yn.options.components,Eo),yn.prototype.__patch__=H?ao:k,yn.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=ft),be(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Ie(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&be(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,be(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&Y&&Y.emit("init",yn)},0),yn});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index b0e1518e567..0e3d82bb1d4 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -449,6 +449,17 @@
 
   var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+  var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+  var convertEnumeratedValue = function (key, value) {
+    return isFalsyAttrValue(value) || value === 'false'
+      ? 'false'
+      // allow arbitrary string value for contenteditable
+      : key === 'contenteditable' && isValidContentEditableValue(value)
+        ? value
+        : 'true'
+  };
+
   var isBooleanAttr = makeMap(
     'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
     'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -502,7 +513,7 @@
         return (" " + key + "=\"" + key + "\"")
       }
     } else if (isEnumeratedAttr(key)) {
-      return (" " + key + "=\"" + (isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true') + "\"")
+      return (" " + key + "=\"" + (escape(convertEnumeratedValue(key, value))) + "\"")
     } else if (!isFalsyAttrValue(value)) {
       return (" " + key + "=\"" + (escape(String(value))) + "\"")
     }
@@ -3783,7 +3794,7 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:|^\./;
+  var dirRE = /^v-|^@|^:/;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
@@ -3791,7 +3802,6 @@
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
-  var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
   var slotRE = /^v-slot(:|$)|^#/;
@@ -3868,6 +3878,7 @@
     }
 
     function closeElement (element) {
+      trimEndingWhitespace(element);
       if (!inVPre && !element.processed) {
         element = processElement(element, options);
       }
@@ -3894,14 +3905,25 @@
       if (currentParent && !element.forbidden) {
         if (element.elseif || element.else) {
           processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
+          if (element.slotScope) {
+            // scoped slot
+            // keep it in the children list so that v-else(-if) conditions can
+            // find it as the prev node.
+            var name = element.slotTarget || '"default"'
+            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          }
           currentParent.children.push(element);
           element.parent = currentParent;
         }
       }
+
+      // final children cleanup
+      // filter out scoped slots
+      element.children = element.children.filter(function (c) { return !(c).slotScope; });
+      // remove trailing whitespace node again
+      trimEndingWhitespace(element);
+
       // check pre state
       if (element.pre) {
         inVPre = false;
@@ -3915,6 +3937,20 @@
       }
     }
 
+    function trimEndingWhitespace (el) {
+      // remove trailing whitespace node
+      if (!inPre) {
+        var lastNode;
+        while (
+          (lastNode = el.children[el.children.length - 1]) &&
+          lastNode.type === 3 &&
+          lastNode.text === ' '
+        ) {
+          el.children.pop();
+        }
+      }
+    }
+
     function checkRootConstraints (el) {
       if (el.tag === 'slot' || el.tag === 'template') {
         warnOnce(
@@ -4029,13 +4065,6 @@
 
       end: function end (tag, start, end$1) {
         var element = stack[stack.length - 1];
-        if (!inPre) {
-          // remove trailing whitespace node
-          var lastNode = element.children[element.children.length - 1];
-          if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-            element.children.pop();
-          }
-        }
         // pop stack
         stack.length -= 1;
         currentParent = stack[stack.length - 1];
@@ -4379,6 +4408,13 @@
                 el
               );
             }
+            if (el.parent && !maybeComponent(el.parent)) {
+              warn$1(
+                "<template v-slot> can only appear at the root level inside " +
+                "the receiving the component",
+                el
+              );
+            }
           }
           var ref = getSlotName(slotBinding);
           var name = ref.name;
@@ -4418,8 +4454,9 @@
           var name$1 = ref$1.name;
           var dynamic$1 = ref$1.dynamic;
           var slotContainer = slots[name$1] = createASTElement('template', [], el);
+          slotContainer.slotTarget = name$1;
           slotContainer.slotTargetDynamic = dynamic$1;
-          slotContainer.children = el.children;
+          slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
           slotContainer.slotScope = slotBinding$1.value || "_";
           // remove children as they are returned from scopedSlots now
           el.children = [];
@@ -4486,10 +4523,7 @@
         // modifiers
         modifiers = parseModifiers(name.replace(dirRE, ''));
         // support .foo shorthand syntax for the .prop modifier
-        if (propBindRE.test(name)) {
-          (modifiers || (modifiers = {})).prop = true;
-          name = "." + name.slice(1).replace(modifierRE, '');
-        } else if (modifiers) {
+        if (modifiers) {
           name = name.replace(modifierRE, '');
         }
         if (bindRE.test(name)) { // v-bind
@@ -5465,43 +5499,30 @@
     slots,
     state
   ) {
-    var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+    var hasDynamicKeys = Object.keys(slots).some(function (key) {
+      var slot = slots[key];
+      return slot.slotTargetDynamic || slot.if || slot.for
+    });
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-        return genScopedSlot(key, slots[key], state)
+        return genScopedSlot(slots[key], state)
       }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
-    key,
     el,
     state
   ) {
+    if (el.if && !el.ifProcessed) {
+      return genIf(el, state, genScopedSlot, "null")
+    }
     if (el.for && !el.forProcessed) {
-      return genForScopedSlot(key, el, state)
+      return genFor(el, state, genScopedSlot)
     }
     var fn = "function(" + (String(el.slotScope)) + "){" +
       "return " + (el.tag === 'template'
-        ? el.if
-          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-          : genChildren(el, state) || 'undefined'
+        ? genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
-    return ("{key:" + key + ",fn:" + fn + "}")
-  }
-
-  function genForScopedSlot (
-    key,
-    el,
-    state
-  ) {
-    var exp = el.for;
-    var alias = el.alias;
-    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-    el.forProcessed = true; // avoid recursion
-    return "_l((" + exp + ")," +
-      "function(" + alias + iterator1 + iterator2 + "){" +
-        "return " + (genScopedSlot(key, el, state)) +
-      '})'
+    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
   }
 
   function genChildren (
@@ -7146,7 +7167,7 @@
       var slot = fns[i];
       if (Array.isArray(slot)) {
         resolveScopedSlots(slot, hasDynamicKeys, res);
-      } else {
+      } else if (slot) {
         res[slot.key] = slot.fn;
       }
     }
@@ -7780,7 +7801,7 @@
       }
     }
     res._normalized = true;
-    res.$stable = slots && slots.$stable;
+    res.$stable = slots ? slots.$stable : true;
     return res
   }
 
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 4a87236dc63..aebf69603d5 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -451,6 +451,17 @@ var mustUseProp = function (tag, type, attr) {
 
 var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
+var convertEnumeratedValue = function (key, value) {
+  return isFalsyAttrValue(value) || value === 'false'
+    ? 'false'
+    // allow arbitrary string value for contenteditable
+    : key === 'contenteditable' && isValidContentEditableValue(value)
+      ? value
+      : 'true'
+};
+
 var isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -504,7 +515,7 @@ function renderAttr (key, value) {
       return (" " + key + "=\"" + key + "\"")
     }
   } else if (isEnumeratedAttr(key)) {
-    return (" " + key + "=\"" + (isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true') + "\"")
+    return (" " + key + "=\"" + (escape(convertEnumeratedValue(key, value))) + "\"")
   } else if (!isFalsyAttrValue(value)) {
     return (" " + key + "=\"" + (escape(String(value))) + "\"")
   }
@@ -3533,7 +3544,7 @@ function parseString (chr) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:|^\./;
+var dirRE = /^v-|^@|^:/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -3541,7 +3552,6 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
@@ -3618,6 +3628,7 @@ function parse (
   }
 
   function closeElement (element) {
+    trimEndingWhitespace(element);
     if (!inVPre && !element.processed) {
       element = processElement(element, options);
     }
@@ -3644,14 +3655,25 @@ function parse (
     if (currentParent && !element.forbidden) {
       if (element.elseif || element.else) {
         processIfConditions(element, currentParent);
-      } else if (element.slotScope) { // scoped slot
-        var name = element.slotTarget || '"default"'
-        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
       } else {
+        if (element.slotScope) {
+          // scoped slot
+          // keep it in the children list so that v-else(-if) conditions can
+          // find it as the prev node.
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        }
         currentParent.children.push(element);
         element.parent = currentParent;
       }
     }
+
+    // final children cleanup
+    // filter out scoped slots
+    element.children = element.children.filter(function (c) { return !(c).slotScope; });
+    // remove trailing whitespace node again
+    trimEndingWhitespace(element);
+
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -3665,6 +3687,20 @@ function parse (
     }
   }
 
+  function trimEndingWhitespace (el) {
+    // remove trailing whitespace node
+    if (!inPre) {
+      var lastNode;
+      while (
+        (lastNode = el.children[el.children.length - 1]) &&
+        lastNode.type === 3 &&
+        lastNode.text === ' '
+      ) {
+        el.children.pop();
+      }
+    }
+  }
+
   function checkRootConstraints (el) {
     if (el.tag === 'slot' || el.tag === 'template') {
       warnOnce(
@@ -3779,13 +3815,6 @@ function parse (
 
     end: function end (tag, start, end$1) {
       var element = stack[stack.length - 1];
-      if (!inPre) {
-        // remove trailing whitespace node
-        var lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-          element.children.pop();
-        }
-      }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
@@ -4129,6 +4158,13 @@ function processSlotContent (el) {
               el
             );
           }
+          if (el.parent && !maybeComponent(el.parent)) {
+            warn$1(
+              "<template v-slot> can only appear at the root level inside " +
+              "the receiving the component",
+              el
+            );
+          }
         }
         var ref = getSlotName(slotBinding);
         var name = ref.name;
@@ -4168,8 +4204,9 @@ function processSlotContent (el) {
         var name$1 = ref$1.name;
         var dynamic$1 = ref$1.dynamic;
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children;
+        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
         slotContainer.slotScope = slotBinding$1.value || "_";
         // remove children as they are returned from scopedSlots now
         el.children = [];
@@ -4236,10 +4273,7 @@ function processAttrs (el) {
       // modifiers
       modifiers = parseModifiers(name.replace(dirRE, ''));
       // support .foo shorthand syntax for the .prop modifier
-      if (propBindRE.test(name)) {
-        (modifiers || (modifiers = {})).prop = true;
-        name = "." + name.slice(1).replace(modifierRE, '');
-      } else if (modifiers) {
+      if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -5215,43 +5249,30 @@ function genScopedSlots (
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+    var slot = slots[key];
+    return slot.slotTargetDynamic || slot.if || slot.for
+  });
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
+      return genScopedSlot(slots[key], state)
     }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
-  key,
   el,
   state
 ) {
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state, genScopedSlot, "null")
+  }
   if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
+    return genFor(el, state, genScopedSlot)
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? el.if
-        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
+      ? genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
 
 function genChildren (
@@ -6896,7 +6917,7 @@ function resolveScopedSlots (
     var slot = fns[i];
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else {
+    } else if (slot) {
       res[slot.key] = slot.fn;
     }
   }
@@ -7530,7 +7551,7 @@ function normalizeScopedSlots (
     }
   }
   res._normalized = true;
-  res.$stable = slots && slots.$stable;
+  res.$stable = slots ? slots.$stable : true;
   return res
 }
 
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 076e35ab915..60247716e86 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e,t=(e=require("he"))&&"object"==typeof e&&"default"in e?e.default:e,r=Object.freeze({});function n(e){return null==e}function i(e){return null!=e}function o(e){return!0===e}function a(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function s(e){return null!==e&&"object"==typeof e}var c=Object.prototype.toString;function u(e){return"[object Object]"===c.call(e)}function l(e){return i(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function f(e){return null==e?"":Array.isArray(e)||u(e)&&e.toString===c?JSON.stringify(e,null,2):String(e)}function p(e){var t=parseFloat(e);return isNaN(t)?e:t}function d(e,t){for(var r=Object.create(null),n=e.split(","),i=0;i<n.length;i++)r[n[i]]=!0;return t?function(e){return r[e.toLowerCase()]}:function(e){return r[e]}}var v=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(r){return t[r]||(t[r]=e(r))}}var b=/-(\w)/g,_=g(function(e){return e.replace(b,function(e,t){return t?t.toUpperCase():""})}),w=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),x=/\B([A-Z])/g,S=g(function(e){return e.replace(x,"-$1").toLowerCase()});Function.prototype.bind;function $(e,t){for(var r in t)e[r]=t[r];return e}function A(e){for(var t={},r=0;r<e.length;r++)e[r]&&$(t,e[r]);return t}function O(e,t,r){}var k=function(e,t,r){return!1},C=function(e){return e};function T(e,t){if(e===t)return!0;var r=s(e),n=s(t);if(!r||!n)return!r&&!n&&String(e)===String(t);try{var i=Array.isArray(e),o=Array.isArray(t);if(i&&o)return e.length===t.length&&e.every(function(e,r){return T(e,t[r])});if(e instanceof Date&&t instanceof Date)return e.getTime()===t.getTime();if(i||o)return!1;var a=Object.keys(e),c=Object.keys(t);return a.length===c.length&&a.every(function(r){return 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P=d("accept,accept-charset,accesskey,action,align,alt,async,autocomplete,autofocus,autoplay,autosave,bgcolor,border,buffered,challenge,charset,checked,cite,class,code,codebase,color,cols,colspan,content,http-equiv,name,contenteditable,contextmenu,controls,coords,data,datetime,default,defer,dir,dirname,disabled,download,draggable,dropzone,enctype,method,for,form,formaction,headers,height,hidden,high,href,hreflang,http-equiv,icon,id,ismap,itemprop,keytype,kind,label,lang,language,list,loop,low,manifest,max,maxlength,media,method,GET,POST,min,multiple,email,file,muted,name,novalidate,open,optimum,pattern,ping,placeholder,poster,preload,radiogroup,readonly,rel,required,reversed,rows,rowspan,sandbox,scope,scoped,seamless,selected,shape,size,type,text,password,sizes,span,spellcheck,src,srcdoc,srclang,srcset,start,step,style,summary,tabindex,target,title,type,usemap,value,width,wrap"),E=/[>\/="'\u0009\u000a\u000c\u0020]/,N=function(e){return E.test(e)},L=function(e){return 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Promise(function(r){t._registeredComponents=new Set;var n=a(e,ho(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?ho():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var go=require("source-map").SourceMapConsumer,bo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function _o(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(bo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(bo,c)}return e}return e}(e,t)}).join("\n"))}var wo=require("fs"),xo=require("path"),So=require("stream").PassThrough,$o="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function Ao(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=Qi(t,r,n,a),p=new so({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=eo()).promise,r=n.cb);var a="",s=ht(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new mt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ut,canBeLeftOpenTag:lt,modules:ot,directives:$(ct,e.directives)}))}process.env.VUE_ENV="server";var Oo=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&xo.isAbsolute(t)){if(!wo.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||xo.dirname(t),t=wo.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new go(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error($o)}else{if("string"!=typeof t)throw new Error($o);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=yo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=eo()).promise,t=r.cb),u(e).catch(function(e){_o(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){_o(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new So;return u(e).catch(function(e){_o(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){_o(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(Ao);exports.createRenderer=Ao,exports.createBundleRenderer=Oo;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index add0a4dab00..bc1ecdebcf3 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.0-beta.3",
+  "version": "2.6.0",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 5cccb66072b..8b6498144f8 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -1694,6 +1694,8 @@
 
   var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+  var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
   var isBooleanAttr = makeMap(
     'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
     'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -2725,7 +2727,7 @@
   /*  */
 
   var onRE = /^@|^v-on:/;
-  var dirRE = /^v-|^@|^:|^\./;
+  var dirRE = /^v-|^@|^:/;
   var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
   var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
   var stripParensRE = /^\(|\)$/g;
@@ -2733,7 +2735,6 @@
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
-  var propBindRE = /^\./;
   var modifierRE = /\.[^.]+/g;
 
   var slotRE = /^v-slot(:|$)|^#/;
@@ -2810,6 +2811,7 @@
     }
 
     function closeElement (element) {
+      trimEndingWhitespace(element);
       if (!inVPre && !element.processed) {
         element = processElement(element, options);
       }
@@ -2836,14 +2838,25 @@
       if (currentParent && !element.forbidden) {
         if (element.elseif || element.else) {
           processIfConditions(element, currentParent);
-        } else if (element.slotScope) { // scoped slot
-          var name = element.slotTarget || '"default"'
-          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
         } else {
+          if (element.slotScope) {
+            // scoped slot
+            // keep it in the children list so that v-else(-if) conditions can
+            // find it as the prev node.
+            var name = element.slotTarget || '"default"'
+            ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+          }
           currentParent.children.push(element);
           element.parent = currentParent;
         }
       }
+
+      // final children cleanup
+      // filter out scoped slots
+      element.children = element.children.filter(function (c) { return !(c).slotScope; });
+      // remove trailing whitespace node again
+      trimEndingWhitespace(element);
+
       // check pre state
       if (element.pre) {
         inVPre = false;
@@ -2857,6 +2870,20 @@
       }
     }
 
+    function trimEndingWhitespace (el) {
+      // remove trailing whitespace node
+      if (!inPre) {
+        var lastNode;
+        while (
+          (lastNode = el.children[el.children.length - 1]) &&
+          lastNode.type === 3 &&
+          lastNode.text === ' '
+        ) {
+          el.children.pop();
+        }
+      }
+    }
+
     function checkRootConstraints (el) {
       if (el.tag === 'slot' || el.tag === 'template') {
         warnOnce(
@@ -2971,13 +2998,6 @@
 
       end: function end (tag, start, end$1) {
         var element = stack[stack.length - 1];
-        if (!inPre) {
-          // remove trailing whitespace node
-          var lastNode = element.children[element.children.length - 1];
-          if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-            element.children.pop();
-          }
-        }
         // pop stack
         stack.length -= 1;
         currentParent = stack[stack.length - 1];
@@ -3321,6 +3341,13 @@
                 el
               );
             }
+            if (el.parent && !maybeComponent(el.parent)) {
+              warn$1(
+                "<template v-slot> can only appear at the root level inside " +
+                "the receiving the component",
+                el
+              );
+            }
           }
           var ref = getSlotName(slotBinding);
           var name = ref.name;
@@ -3360,8 +3387,9 @@
           var name$1 = ref$1.name;
           var dynamic$1 = ref$1.dynamic;
           var slotContainer = slots[name$1] = createASTElement('template', [], el);
+          slotContainer.slotTarget = name$1;
           slotContainer.slotTargetDynamic = dynamic$1;
-          slotContainer.children = el.children;
+          slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
           slotContainer.slotScope = slotBinding$1.value || "_";
           // remove children as they are returned from scopedSlots now
           el.children = [];
@@ -3428,10 +3456,7 @@
         // modifiers
         modifiers = parseModifiers(name.replace(dirRE, ''));
         // support .foo shorthand syntax for the .prop modifier
-        if (propBindRE.test(name)) {
-          (modifiers || (modifiers = {})).prop = true;
-          name = "." + name.slice(1).replace(modifierRE, '');
-        } else if (modifiers) {
+        if (modifiers) {
           name = name.replace(modifierRE, '');
         }
         if (bindRE.test(name)) { // v-bind
@@ -4534,43 +4559,30 @@
     slots,
     state
   ) {
-    var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+    var hasDynamicKeys = Object.keys(slots).some(function (key) {
+      var slot = slots[key];
+      return slot.slotTargetDynamic || slot.if || slot.for
+    });
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-        return genScopedSlot(key, slots[key], state)
+        return genScopedSlot(slots[key], state)
       }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
-    key,
     el,
     state
   ) {
+    if (el.if && !el.ifProcessed) {
+      return genIf(el, state, genScopedSlot, "null")
+    }
     if (el.for && !el.forProcessed) {
-      return genForScopedSlot(key, el, state)
+      return genFor(el, state, genScopedSlot)
     }
     var fn = "function(" + (String(el.slotScope)) + "){" +
       "return " + (el.tag === 'template'
-        ? el.if
-          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-          : genChildren(el, state) || 'undefined'
+        ? genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
-    return ("{key:" + key + ",fn:" + fn + "}")
-  }
-
-  function genForScopedSlot (
-    key,
-    el,
-    state
-  ) {
-    var exp = el.for;
-    var alias = el.alias;
-    var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-    var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-    el.forProcessed = true; // avoid recursion
-    return "_l((" + exp + ")," +
-      "function(" + alias + iterator1 + iterator2 + "){" +
-        "return " + (genScopedSlot(key, el, state)) +
-      '})'
+    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
   }
 
   function genChildren (
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 5f20b14842b..d78c837a8ce 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -1659,6 +1659,8 @@ var mustUseProp = function (tag, type, attr) {
 
 var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
 
+var isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');
+
 var isBooleanAttr = makeMap(
   'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
   'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
@@ -2345,7 +2347,7 @@ function parseString (chr) {
 /*  */
 
 var onRE = /^@|^v-on:/;
-var dirRE = /^v-|^@|^:|^\./;
+var dirRE = /^v-|^@|^:/;
 var forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/;
 var forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/;
 var stripParensRE = /^\(|\)$/g;
@@ -2353,7 +2355,6 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var propBindRE = /^\./;
 var modifierRE = /\.[^.]+/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
@@ -2430,6 +2431,7 @@ function parse (
   }
 
   function closeElement (element) {
+    trimEndingWhitespace(element);
     if (!inVPre && !element.processed) {
       element = processElement(element, options);
     }
@@ -2456,14 +2458,25 @@ function parse (
     if (currentParent && !element.forbidden) {
       if (element.elseif || element.else) {
         processIfConditions(element, currentParent);
-      } else if (element.slotScope) { // scoped slot
-        var name = element.slotTarget || '"default"'
-        ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
       } else {
+        if (element.slotScope) {
+          // scoped slot
+          // keep it in the children list so that v-else(-if) conditions can
+          // find it as the prev node.
+          var name = element.slotTarget || '"default"'
+          ;(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
+        }
         currentParent.children.push(element);
         element.parent = currentParent;
       }
     }
+
+    // final children cleanup
+    // filter out scoped slots
+    element.children = element.children.filter(function (c) { return !(c).slotScope; });
+    // remove trailing whitespace node again
+    trimEndingWhitespace(element);
+
     // check pre state
     if (element.pre) {
       inVPre = false;
@@ -2477,6 +2490,20 @@ function parse (
     }
   }
 
+  function trimEndingWhitespace (el) {
+    // remove trailing whitespace node
+    if (!inPre) {
+      var lastNode;
+      while (
+        (lastNode = el.children[el.children.length - 1]) &&
+        lastNode.type === 3 &&
+        lastNode.text === ' '
+      ) {
+        el.children.pop();
+      }
+    }
+  }
+
   function checkRootConstraints (el) {
     if (el.tag === 'slot' || el.tag === 'template') {
       warnOnce(
@@ -2591,13 +2618,6 @@ function parse (
 
     end: function end (tag, start, end$1) {
       var element = stack[stack.length - 1];
-      if (!inPre) {
-        // remove trailing whitespace node
-        var lastNode = element.children[element.children.length - 1];
-        if (lastNode && lastNode.type === 3 && lastNode.text === ' ') {
-          element.children.pop();
-        }
-      }
       // pop stack
       stack.length -= 1;
       currentParent = stack[stack.length - 1];
@@ -2941,6 +2961,13 @@ function processSlotContent (el) {
               el
             );
           }
+          if (el.parent && !maybeComponent(el.parent)) {
+            warn$1(
+              "<template v-slot> can only appear at the root level inside " +
+              "the receiving the component",
+              el
+            );
+          }
         }
         var ref = getSlotName(slotBinding);
         var name = ref.name;
@@ -2980,8 +3007,9 @@ function processSlotContent (el) {
         var name$1 = ref$1.name;
         var dynamic$1 = ref$1.dynamic;
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
+        slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children;
+        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
         slotContainer.slotScope = slotBinding$1.value || "_";
         // remove children as they are returned from scopedSlots now
         el.children = [];
@@ -3048,10 +3076,7 @@ function processAttrs (el) {
       // modifiers
       modifiers = parseModifiers(name.replace(dirRE, ''));
       // support .foo shorthand syntax for the .prop modifier
-      if (propBindRE.test(name)) {
-        (modifiers || (modifiers = {})).prop = true;
-        name = "." + name.slice(1).replace(modifierRE, '');
-      } else if (modifiers) {
+      if (modifiers) {
         name = name.replace(modifierRE, '');
       }
       if (bindRE.test(name)) { // v-bind
@@ -4167,43 +4192,30 @@ function genScopedSlots (
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) { return slots[key].slotTargetDynamic; });
+  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+    var slot = slots[key];
+    return slot.slotTargetDynamic || slot.if || slot.for
+  });
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(key, slots[key], state)
+      return genScopedSlot(slots[key], state)
     }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
-  key,
   el,
   state
 ) {
+  if (el.if && !el.ifProcessed) {
+    return genIf(el, state, genScopedSlot, "null")
+  }
   if (el.for && !el.forProcessed) {
-    return genForScopedSlot(key, el, state)
+    return genFor(el, state, genScopedSlot)
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? el.if
-        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
-        : genChildren(el, state) || 'undefined'
+      ? genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + key + ",fn:" + fn + "}")
-}
-
-function genForScopedSlot (
-  key,
-  el,
-  state
-) {
-  var exp = el.for;
-  var alias = el.alias;
-  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
-  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';
-  el.forProcessed = true; // avoid recursion
-  return "_l((" + exp + ")," +
-    "function(" + alias + iterator1 + iterator2 + "){" +
-      "return " + (genScopedSlot(key, el, state)) +
-    '})'
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
 
 function genChildren (
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index d6fded81e03..7ede68ae864 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.0-beta.3",
+  "version": "2.6.0",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 85548310f19975745c83ac173f700f8b2f1e8e3e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 10:57:04 -0500
Subject: [PATCH 769/911] build: release 2.6.0

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index e64da4307b8..8590e871d97 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.0-beta.3",
+  "version": "2.6.0",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From b6b42ca8c41963be292caa266ce4330603f4c4eb Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 15:14:29 -0500
Subject: [PATCH 770/911] fix: avoid isPromise check when handler return value
 is Vue instance

fix #9418
---
 src/core/util/error.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index ea4d0411454..6110639e4ae 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -35,7 +35,7 @@ export function invokeWithErrorHandling (
   let res
   try {
     res = args ? handler.apply(context, args) : handler.call(context)
-    if (isPromise(res)) {
+    if (res && !res._isVue && isPromise(res)) {
       res.catch(e => handleError(e, vm, info + ` (Promise/async)`))
     }
   } catch (e) {

From 1922e7d4d99d0397223b3919a1643aacb7afbbab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Barth=C3=A9l=C3=A9my=20Ledoux?= <ledouxb@me.com>
Date: Mon, 4 Feb 2019 15:34:32 -0600
Subject: [PATCH 771/911] fix(template-compiler): allow comments on the root
 node in templates (#9408)

In SFC templates, we are allowed to add comments to the root node. If parsing with comments flag
true, we are not anymore. This ignores the root comments in case they cannot be added.

fix #9407
---
 src/compiler/parser/index.js              | 22 +++++++++++++---------
 test/unit/modules/compiler/parser.spec.js | 12 +++++++++++-
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index ec0e302c68f..2b726e5d2f1 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -377,16 +377,20 @@ export function parse (
       }
     },
     comment (text: string, start, end) {
-      const child: ASTText = {
-        type: 3,
-        text,
-        isComment: true
-      }
-      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
-        child.start = start
-        child.end = end
+      // adding anyting as a sibling to the root node is forbidden
+      // comments should still be allowed, but ignored
+      if (currentParent) {
+        const child: ASTText = {
+          type: 3,
+          text,
+          isComment: true
+        }
+        if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+          child.start = start
+          child.end = end
+        }
+        currentParent.children.push(child)
       }
-      currentParent.children.push(child)
     }
   })
   return root
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index e81f30ca479..13f1c0d389d 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -786,6 +786,16 @@ describe('parser', () => {
     expect(ast.children[1].text).toBe('comment here')
   })
 
+  // #9407
+  it('should parse templates with comments anywhere', () => {
+    const options = extend({
+      comments: true
+    }, baseOptions)
+    const ast = parse(`<!--comment here--><div>123</div>`, options)
+    expect(ast.tag).toBe('div')
+    expect(ast.children.length).toBe(1)
+  })
+
   // #8103
   it('should allow CRLFs in string interpolations', () => {
     const ast = parse(`<p>{{\r\nmsg\r\n}}</p>`, baseOptions)
@@ -797,7 +807,7 @@ describe('parser', () => {
       preserveWhitespace: false
     }, baseOptions)
 
-     const ast = parse('<p>\n  Welcome to <b>Vue.js</b>    <i>world</i>  \n  <span>.\n  Have fun!\n</span></p>', options)
+    const ast = parse('<p>\n  Welcome to <b>Vue.js</b>    <i>world</i>  \n  <span>.\n  Have fun!\n</span></p>', options)
     expect(ast.tag).toBe('p')
     expect(ast.children.length).toBe(4)
     expect(ast.children[0].type).toBe(3)

From c27fe24dc6088b517ab17c799a1852f97c22c076 Mon Sep 17 00:00:00 2001
From: bughit <bughit@users.noreply.github.com>
Date: Mon, 4 Feb 2019 16:48:24 -0500
Subject: [PATCH 772/911] fix: decode single quotes in html attributes (#9341)

---
 src/compiler/parser/html-parser.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index d237f517775..3139721c366 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -36,10 +36,11 @@ const decodingMap = {
   '&quot;': '"',
   '&amp;': '&',
   '&#10;': '\n',
-  '&#9;': '\t'
+  '&#9;': '\t',
+  '&#39;': "'"
 }
-const encodedAttr = /&(?:lt|gt|quot|amp);/g
-const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g
+const encodedAttr = /&(?:lt|gt|quot|amp|#39);/g
+const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g
 
 // #5992
 const isIgnoreNewlineTag = makeMap('pre,textarea', true)

From 55bfb94a33ecc9b33131ec0fb78bba2946e8fc75 Mon Sep 17 00:00:00 2001
From: Filipe Amaral <filipe@britecore.com>
Date: Mon, 4 Feb 2019 19:49:27 -0200
Subject: [PATCH 773/911] fix(compiler): fix inline-template crashing (#9365)

fix #9361
---
 src/compiler/codegen/index.js              |  2 +-
 test/unit/modules/compiler/codegen.spec.js | 21 ++++++++++++++-------
 2 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index b186cb92f63..c0038a1f79f 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -346,7 +346,7 @@ function genInlineTemplate (el: ASTElement, state: CodegenState): ?string {
       { start: el.start }
     )
   }
-  if (ast.type === 1) {
+  if (ast && ast.type === 1) {
     const inlineRenderFns = generate(ast, state.options)
     return `inlineTemplate:{render:function(){${
       inlineRenderFns.render
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 20d065b3e72..083a736f5b0 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -591,14 +591,21 @@ describe('codegen', () => {
       '<my-component inline-template><hr><hr></my-component>',
       `with(this){return _c('my-component',{inlineTemplate:{render:function(){with(this){return _c('hr')}},staticRenderFns:[]}})}`
     )
-    try {
-      assertCodegen(
-        '<my-component inline-template></my-component>',
-        ''
-      )
-    } catch (e) {}
+    assertCodegen(
+      '<my-component inline-template></my-component>',
+      `with(this){return _c('my-component',{})}`
+    )
+    // have "is" attribute
+    assertCodegen(
+      '<div is="myComponent" inline-template><div></div></div>',
+      `with(this){return _c("myComponent",{tag:"div",inlineTemplate:{render:function(){with(this){return _c('div')}},staticRenderFns:[]}})}`
+    )
+    assertCodegen(
+      '<div is="myComponent" inline-template></div>',
+      `with(this){return _c("myComponent",{tag:"div"})}`
+    )
     expect('Inline-template components must have exactly one child element.').toHaveBeenWarned()
-    expect(console.error.calls.count()).toBe(2)
+    expect(console.error.calls.count()).toBe(3)
   })
 
   it('generate static trees inside v-for', () => {

From 0fb03b7831693b4abc90dd0bfe971c36c02d82a6 Mon Sep 17 00:00:00 2001
From: nciont <nciont@users.noreply.github.com>
Date: Tue, 5 Feb 2019 01:39:41 +0300
Subject: [PATCH 774/911] fix: avoid blocking first input event in IE when it
 shouldn't (#9297)

- the original bug in #7138 only happens for `<textarea>`
- the bug doesn't happen if placeholder has empty value

fix #9042, fix #9383
---
 src/platforms/web/runtime/modules/attrs.js     |  4 ++--
 .../features/directives/model-text.spec.js     | 18 +++++++++++++++++-
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/platforms/web/runtime/modules/attrs.js b/src/platforms/web/runtime/modules/attrs.js
index b1946ec5c6f..b5e0640305c 100644
--- a/src/platforms/web/runtime/modules/attrs.js
+++ b/src/platforms/web/runtime/modules/attrs.js
@@ -98,8 +98,8 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && value !== '' && !el.__ieph
     ) {
       const blocker = e => {
         e.stopImmediatePropagation()
diff --git a/test/unit/features/directives/model-text.spec.js b/test/unit/features/directives/model-text.spec.js
index 69e9851368a..7cf5167461f 100644
--- a/test/unit/features/directives/model-text.spec.js
+++ b/test/unit/features/directives/model-text.spec.js
@@ -437,8 +437,8 @@ describe('Directive v-model text', () => {
     })
   }
 
-  // #7138
   if (isIE && !isIE9) {
+    // #7138
     it('should not fire input on initial render of textarea with placeholder in IE10/11', done => {
       const el = document.createElement('div')
       document.body.appendChild(el)
@@ -452,5 +452,21 @@ describe('Directive v-model text', () => {
         done()
       }, 17)
     })
+
+    // #9042
+    it('should not block the first input event when placeholder is empty', done => {
+      const el = document.createElement('div')
+      document.body.appendChild(el)
+      const vm = new Vue({
+        el,
+        data: { evtCount: 0 },
+        template: `<textarea placeholder="" @input="evtCount++"></textarea>`,
+      })
+      triggerEvent(vm.$el, 'input')
+      setTimeout(() => {
+        expect(vm.evtCount).toBe(1)
+        done()
+      }, 17)
+    })
   }
 })

From 66fd3c8dd1577d4b634731adf4be4d3db5bf1df6 Mon Sep 17 00:00:00 2001
From: Bogdan Luca <luca.bogdan@gmail.com>
Date: Tue, 5 Feb 2019 00:43:48 +0200
Subject: [PATCH 775/911] fix(v-model): add value to $attrs if not defined in
 props (#9331)

fix #9330
---
 src/core/vdom/create-component.js             |  3 ++-
 .../directives/model-component.spec.js        | 26 +++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index b769fa1e19d..60bb258e519 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -250,7 +250,8 @@ function mergeHook (f1: any, f2: any): Function {
 function transformModel (options, data: any) {
   const prop = (options.model && options.model.prop) || 'value'
   const event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value
+  const addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value
   const on = data.on || (data.on = {})
   const existing = on[event]
   const callback = data.model.callback
diff --git a/test/unit/features/directives/model-component.spec.js b/test/unit/features/directives/model-component.spec.js
index 9f9536ada09..49ff4ddb138 100644
--- a/test/unit/features/directives/model-component.spec.js
+++ b/test/unit/features/directives/model-component.spec.js
@@ -204,4 +204,30 @@ describe('Directive v-model component', () => {
     expect(triggerCount).toBe(1)
     document.body.removeChild(vm.$el)
   })
+
+  // #9330
+  it('should add value to $attrs if not defined in props', () => {
+    const TestComponent = {
+      inheritAttrs: false,
+      render (h) {
+        return h('div', this.$attrs.value)
+      }
+    }
+
+    const vm = new Vue({
+      components: {
+        TestComponent
+      },
+      template: `
+        <div>
+          <test-component v-model="val"/>
+        </div>
+      `,
+      data: {
+        val: 'foo'
+      }
+    }).$mount()
+
+    expect(vm.$el.innerHTML).toBe('<div>foo</div>');
+  })
 })

From 6fb3a2211aa6aba54c961df41a514af1131424a6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 17:51:32 -0500
Subject: [PATCH 776/911] build: build 2.6.1

---
 dist/vue.common.dev.js                      | 46 ++++++++++++---------
 dist/vue.common.prod.js                     |  4 +-
 dist/vue.esm.browser.js                     | 46 ++++++++++++---------
 dist/vue.esm.browser.min.js                 |  4 +-
 dist/vue.esm.js                             | 46 ++++++++++++---------
 dist/vue.js                                 | 46 ++++++++++++---------
 dist/vue.min.js                             |  4 +-
 dist/vue.runtime.common.dev.js              | 15 +++----
 dist/vue.runtime.common.prod.js             |  4 +-
 dist/vue.runtime.esm.js                     | 15 +++----
 dist/vue.runtime.js                         | 15 +++----
 dist/vue.runtime.min.js                     |  4 +-
 packages/vue-server-renderer/basic.js       | 38 ++++++++++-------
 packages/vue-server-renderer/build.dev.js   | 38 ++++++++++-------
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 31 ++++++++------
 packages/vue-template-compiler/build.js     | 31 ++++++++------
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 221 insertions(+), 172 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 0954e9b95cb..22c475309db 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1849,7 +1849,7 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (isPromise(res)) {
+    if (res && !res._isVue && isPromise(res)) {
       res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
@@ -4572,8 +4572,9 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input';
+  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5319,7 +5320,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0';
+Vue.version = '2.6.1';
 
 /*  */
 
@@ -6640,8 +6641,8 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && value !== '' && !el.__ieph
     ) {
       var blocker = function (e) {
         e.stopImmediatePropagation();
@@ -9121,10 +9122,11 @@ var decodingMap = {
   '&quot;': '"',
   '&amp;': '&',
   '&#10;': '\n',
-  '&#9;': '\t'
+  '&#9;': '\t',
+  '&#39;': "'"
 };
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -9743,16 +9745,20 @@ function parse (
       }
     },
     comment: function comment (text, start, end) {
-      var child = {
-        type: 3,
-        text: text,
-        isComment: true
-      };
-      if (options.outputSourceRange) {
-        child.start = start;
-        child.end = end;
+      // adding anyting as a sibling to the root node is forbidden
+      // comments should still be allowed, but ignored
+      if (currentParent) {
+        var child = {
+          type: 3,
+          text: text,
+          isComment: true
+        };
+        if (options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
-      currentParent.children.push(child);
     }
   });
   return root
@@ -11047,7 +11053,7 @@ function genInlineTemplate (el, state) {
       { start: el.start }
     );
   }
-  if (ast.type === 1) {
+  if (ast && ast.type === 1) {
     var inlineRenderFns = generate(ast, state.options);
     return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
   }
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index dff386f99e2..66e2ef885b3 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var _=/-(\w)/g,b=g(function(e){return e.replace(_,function(e,t){return t?t.toUpperCase():""})}),$=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),w=/\B([A-Z])/g,C=g(function(e){return e.replace(w,"-$1").toLowerCase()});var x=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function A(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function O(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function S(e,t,n){}var T=function(e,t,n){return!1},N=function(e){return e};function E(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var 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WXEnvironment&&!!WXEnvironment.platform,V=z&&WXEnvironment.platform.toLowerCase(),K=U&&window.navigator.userAgent.toLowerCase(),J=K&&/msie|trident/.test(K),q=K&&K.indexOf("msie 9.0")>0,W=K&&K.indexOf("edge/")>0,Z=(K&&K.indexOf("android"),K&&/iphone|ipad|ipod|ios/.test(K)||"ios"===V),G=(K&&/chrome\/\d+/.test(K),K&&/phantomjs/.test(K),{}.watch),X=!1;if(U)try{var Y={};Object.defineProperty(Y,"passive",{get:function(){X=!0}}),window.addEventListener("test-passive",null,Y)}catch(e){}var Q=function(){return void 0===H&&(H=!U&&!z&&"undefined"!=typeof global&&(global.process&&"server"===global.process.env.VUE_ENV)),H},ee=U&&window.__VUE_DEVTOOLS_GLOBAL_HOOK__;function te(e){return"function"==typeof e&&/native code/.test(e.toString())}var ne,re="undefined"!=typeof Symbol&&te(Symbol)&&"undefined"!=typeof Reflect&&te(Reflect.ownKeys);ne="undefined"!=typeof Set&&te(Set)?Set:function(){function e(){this.set=Object.create(null)}return 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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 558c61e07b7..2a3978e4cbb 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1880,7 +1880,7 @@ function invokeWithErrorHandling (
   let res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (isPromise(res)) {
+    if (res && !res._isVue && isPromise(res)) {
       res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
     }
   } catch (e) {
@@ -4615,8 +4615,9 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   const prop = (options.model && options.model.prop) || 'value';
-  const event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  const event = (options.model && options.model.event) || 'input';
+  const addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
   const on = data.on || (data.on = {});
   const existing = on[event];
   const callback = data.model.callback;
@@ -5352,7 +5353,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0';
+Vue.version = '2.6.1';
 
 /*  */
 
@@ -6670,8 +6671,8 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && value !== '' && !el.__ieph
     ) {
       const blocker = e => {
         e.stopImmediatePropagation();
@@ -9140,10 +9141,11 @@ const decodingMap = {
   '&quot;': '"',
   '&amp;': '&',
   '&#10;': '\n',
-  '&#9;': '\t'
+  '&#9;': '\t',
+  '&#39;': "'"
 };
-const encodedAttr = /&(?:lt|gt|quot|amp);/g;
-const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+const encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+const encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
 // #5992
 const isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -9762,16 +9764,20 @@ function parse (
       }
     },
     comment (text, start, end) {
-      const child = {
-        type: 3,
-        text,
-        isComment: true
-      };
-      if (options.outputSourceRange) {
-        child.start = start;
-        child.end = end;
+      // adding anyting as a sibling to the root node is forbidden
+      // comments should still be allowed, but ignored
+      if (currentParent) {
+        const child = {
+          type: 3,
+          text,
+          isComment: true
+        };
+        if (options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
-      currentParent.children.push(child);
     }
   });
   return root
@@ -11104,7 +11110,7 @@ function genInlineTemplate (el, state) {
       { start: el.start }
     );
   }
-  if (ast.type === 1) {
+  if (ast && ast.type === 1) {
     const inlineRenderFns = generate(ast, state.options);
     return `inlineTemplate:{render:function(){${
       inlineRenderFns.render
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 973ddbaa121..40241f78fad 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const 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ji(t,e);if(t.if&&!t.ifProcessed)return Ni(t,e);if("template"!==t.tag||t.slotTarget||e.pre){if("slot"===t.tag)return function(t,e){const n=t.slotName||'"default"',o=Ii(t,e);let r=`_t(${n}${o?`,${o}`:""}`;const s=t.attrs&&`{${t.attrs.map(t=>`${_(t.name)}:${t.value}`).join(",")}}`,i=t.attrsMap["v-bind"];!s&&!i||o||(r+=",null");s&&(r+=`,${s}`);i&&(r+=`${s?"":",null"},${i}`);return r+")"}(t,e);{let n;if(t.component)n=function(t,e,n){const o=e.inlineTemplate?null:Ii(e,n,!0);return`_c(${t},${Li(e,n)}${o?`,${o}`:""})`}(t.component,t,e);else{let o;(!t.plain||t.pre&&e.maybeComponent(t))&&(o=Li(t,e));const r=t.inlineTemplate?null:Ii(t,e,!0);n=`_c('${t.tag}'${o?`,${o}`:""}${r?`,${r}`:""})`}for(let o=0;o<e.transforms.length;o++)n=e.transforms[o](t,n);return n}}return Ii(t,e)||"void 0"}function Ti(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${Si(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Ei(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ni(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${Si(t,e)},${e.onceId++},${n})`:Si(t,e)}return Ti(t,e)}function Ni(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Ei(t,n):Si(t,n)}}(t.ifConditions.slice(),e,n,o)}function ji(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||Si)(t,e)}`+"})"}function Li(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Ri(t.attrs)},`),t.props&&(n+=`domProps:${Ri(t.props)},`),t.events&&(n+=`${wi(t.events,!1)},`),t.nativeEvents&&(n+=`${wi(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e){const n=Object.keys(t).some(e=>{const n=t[e];return n.slotTargetDynamic||n.if||n.for});return`scopedSlots:_u([${Object.keys(t).map(n=>Mi(t[n],e)).join(",")}]${n?",true":""})`}(t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(n&&1===n.type){const t=Oi(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Ri(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Mi(t,e){if(t.if&&!t.ifProcessed)return Ni(t,e,Mi,"null");if(t.for&&!t.forProcessed)return ji(t,e,Mi);const n=`function(${String(t.slotScope)}){`+`return ${"template"===t.tag?Ii(t,e)||"undefined":Si(t,e)}}`;return`{key:${t.slotTarget||'"default"'},fn:${n}}`}function Ii(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||Si)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Di(r)||r.ifConditions&&r.ifConditions.some(t=>Di(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Pi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Di(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Pi(t,e){return 1===t.type?Si(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Fi(JSON.stringify(n.text))})`;var n,o}function Ri(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Fi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Fi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Hi(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Bi(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Hi(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Hi(t,c)),e[s]=a}}const Ui=(zi=function(t,e){const n=Qs(t.trim(),e);!1!==e.optimize&&hi(n,e);const o=Oi(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=zi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Bi(e)}});var zi;const{compile:Vi,compileToFunctions:Ki}=Ui(ui);let Ji;function qi(t){return(Ji=Ji||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Ji.innerHTML.indexOf("&#10;")>0}const Wi=!!U&&qi(!1),Zi=!!U&&qi(!0),Gi=v(t=>{const e=zn(t);return e&&e.innerHTML}),Xi=pn.prototype.$mount;pn.prototype.$mount=function(t,e){if((t=t&&zn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=Gi(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Ki(e,{outputSourceRange:!1,shouldDecodeNewlines:Wi,shouldDecodeNewlinesForHref:Zi,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return Xi.call(this,t,e)},pn.compile=Ki;export default pn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index e6d187601eb..4cf92fcbe17 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1853,7 +1853,7 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (isPromise(res)) {
+    if (res && !res._isVue && isPromise(res)) {
       res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
@@ -4585,8 +4585,9 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input';
+  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5339,7 +5340,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0';
+Vue.version = '2.6.1';
 
 /*  */
 
@@ -6662,8 +6663,8 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && value !== '' && !el.__ieph
     ) {
       var blocker = function (e) {
         e.stopImmediatePropagation();
@@ -9149,10 +9150,11 @@ var decodingMap = {
   '&quot;': '"',
   '&amp;': '&',
   '&#10;': '\n',
-  '&#9;': '\t'
+  '&#9;': '\t',
+  '&#39;': "'"
 };
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -9772,16 +9774,20 @@ function parse (
       }
     },
     comment: function comment (text, start, end) {
-      var child = {
-        type: 3,
-        text: text,
-        isComment: true
-      };
-      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
-        child.start = start;
-        child.end = end;
+      // adding anyting as a sibling to the root node is forbidden
+      // comments should still be allowed, but ignored
+      if (currentParent) {
+        var child = {
+          type: 3,
+          text: text,
+          isComment: true
+        };
+        if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
-      currentParent.children.push(child);
     }
   });
   return root
@@ -11081,7 +11087,7 @@ function genInlineTemplate (el, state) {
       { start: el.start }
     );
   }
-  if (ast.type === 1) {
+  if (ast && ast.type === 1) {
     var inlineRenderFns = generate(ast, state.options);
     return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
   }
diff --git a/dist/vue.js b/dist/vue.js
index b6171c06cd2..21c5826f898 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1853,7 +1853,7 @@
     var res;
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
-      if (isPromise(res)) {
+      if (res && !res._isVue && isPromise(res)) {
         res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       }
     } catch (e) {
@@ -4576,8 +4576,9 @@
   // prop and event handler respectively.
   function transformModel (options, data) {
     var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input'
-    ;(data.props || (data.props = {}))[prop] = data.model.value;
+    var event = (options.model && options.model.event) || 'input';
+    var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+    ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
     var on = data.on || (data.on = {});
     var existing = on[event];
     var callback = data.model.callback;
@@ -5323,7 +5324,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0';
+  Vue.version = '2.6.1';
 
   /*  */
 
@@ -6644,8 +6645,8 @@
       /* istanbul ignore if */
       if (
         isIE && !isIE9 &&
-        (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-        key === 'placeholder' && !el.__ieph
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && value !== '' && !el.__ieph
       ) {
         var blocker = function (e) {
           e.stopImmediatePropagation();
@@ -9125,10 +9126,11 @@
     '&quot;': '"',
     '&amp;': '&',
     '&#10;': '\n',
-    '&#9;': '\t'
+    '&#9;': '\t',
+    '&#39;': "'"
   };
-  var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+  var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
   // #5992
   var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -9747,16 +9749,20 @@
         }
       },
       comment: function comment (text, start, end) {
-        var child = {
-          type: 3,
-          text: text,
-          isComment: true
-        };
-        if (options.outputSourceRange) {
-          child.start = start;
-          child.end = end;
+        // adding anyting as a sibling to the root node is forbidden
+        // comments should still be allowed, but ignored
+        if (currentParent) {
+          var child = {
+            type: 3,
+            text: text,
+            isComment: true
+          };
+          if (options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          currentParent.children.push(child);
         }
-        currentParent.children.push(child);
       }
     });
     return root
@@ -11051,7 +11057,7 @@
         { start: el.start }
       );
     }
-    if (ast.type === 1) {
+    if (ast && ast.type === 1) {
       var inlineRenderFns = generate(ast, state.options);
       return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
     }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index fcdfb63b9b6..3e3d9a0e8d4 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index a8b3b9cac14..ff744844901 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1840,7 +1840,7 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (isPromise(res)) {
+    if (res && !res._isVue && isPromise(res)) {
       res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
@@ -4563,8 +4563,9 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input';
+  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5310,7 +5311,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0';
+Vue.version = '2.6.1';
 
 /*  */
 
@@ -6629,8 +6630,8 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && value !== '' && !el.__ieph
     ) {
       var blocker = function (e) {
         e.stopImmediatePropagation();
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index 88e8c8a1811..38856235f85 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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so={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){so.componentUpdated(t,e,n)}):co(t,e,n.context),t._vOptions=[].map.call(t.options,fo)):("textarea"===n.tag||zn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",po),t.addEventListener("compositionend",vo),t.addEventListener("change",vo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){co(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,fo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return lo(t,o)}):e.value!==e.oldValue&&lo(e.value,o))&&ho(t,"change")}}};function co(t,e,n){uo(t,e,n),(W||K)&&setTimeout(function(){uo(t,e,n)},0)}function uo(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,fo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(fo(a),r))return 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t.tag||se(t)},wo=function(t){return"show"===t.name},$o={name:"transition",props:go,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(Ao)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=_o(i);if(!a)return i;if(this._leaving)return Co(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=bo(this),u=this._vnode,l=_o(u);if(a.data.directives&&a.data.directives.some(wo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!se(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Co(t,i);if("in-out"===r){if(se(a))return u;var 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t.$el=e,t.$options.render||(t.$options.render=ft),be(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Ie(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&be(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,be(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){P.devtools&&Y&&Y.emit("init",yn)},0),module.exports=yn;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 7f8407bb0e2..df2d549cc07 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1844,7 +1844,7 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (isPromise(res)) {
+    if (res && !res._isVue && isPromise(res)) {
       res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
@@ -4576,8 +4576,9 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input';
+  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5330,7 +5331,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.0';
+Vue.version = '2.6.1';
 
 /*  */
 
@@ -6651,8 +6652,8 @@ function baseSetAttr (el, key, value) {
     /* istanbul ignore if */
     if (
       isIE && !isIE9 &&
-      (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-      key === 'placeholder' && !el.__ieph
+      el.tagName === 'TEXTAREA' &&
+      key === 'placeholder' && value !== '' && !el.__ieph
     ) {
       var blocker = function (e) {
         e.stopImmediatePropagation();
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index e29bc242e7b..dafc00b8860 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1844,7 +1844,7 @@
     var res;
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
-      if (isPromise(res)) {
+      if (res && !res._isVue && isPromise(res)) {
         res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       }
     } catch (e) {
@@ -4567,8 +4567,9 @@
   // prop and event handler respectively.
   function transformModel (options, data) {
     var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input'
-    ;(data.props || (data.props = {}))[prop] = data.model.value;
+    var event = (options.model && options.model.event) || 'input';
+    var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+    ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
     var on = data.on || (data.on = {});
     var existing = on[event];
     var callback = data.model.callback;
@@ -5314,7 +5315,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.0';
+  Vue.version = '2.6.1';
 
   /*  */
 
@@ -6633,8 +6634,8 @@
       /* istanbul ignore if */
       if (
         isIE && !isIE9 &&
-        (el.tagName === 'TEXTAREA' || el.tagName === 'INPUT') &&
-        key === 'placeholder' && !el.__ieph
+        el.tagName === 'TEXTAREA' &&
+        key === 'placeholder' && value !== '' && !el.__ieph
       ) {
         var blocker = function (e) {
           e.stopImmediatePropagation();
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index f60949b11e2..84951f99717 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.0
+ * Vue.js v2.6.1
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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so={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){so.componentUpdated(t,e,n)}):co(t,e,n.context),t._vOptions=[].map.call(t.options,fo)):("textarea"===n.tag||zn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",po),t.addEventListener("compositionend",vo),t.addEventListener("change",vo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){co(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,fo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return lo(t,o)}):e.value!==e.oldValue&&lo(e.value,o))&&ho(t,"change")}}};function co(t,e,n){uo(t,e,n),(W||K)&&setTimeout(function(){uo(t,e,n)},0)}function uo(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,fo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(fo(a),r))return 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t.tag||se(t)},wo=function(t){return"show"===t.name},$o={name:"transition",props:go,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(Ao)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=_o(i);if(!a)return i;if(this._leaving)return Co(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=bo(this),u=this._vnode,l=_o(u);if(a.data.directives&&a.data.directives.some(wo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!se(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Co(t,i);if("in-out"===r){if(se(a))return u;var 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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 0e3d82bb1d4..7d7cf80ceba 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -1998,7 +1998,7 @@
     var res;
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
-      if (isPromise(res)) {
+      if (res && !res._isVue && isPromise(res)) {
         res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       }
     } catch (e) {
@@ -3376,10 +3376,11 @@
     '&quot;': '"',
     '&amp;': '&',
     '&#10;': '\n',
-    '&#9;': '\t'
+    '&#9;': '\t',
+    '&#39;': "'"
   };
-  var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+  var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
   // #5992
   var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -4146,16 +4147,20 @@
         }
       },
       comment: function comment (text, start, end) {
-        var child = {
-          type: 3,
-          text: text,
-          isComment: true
-        };
-        if (options.outputSourceRange) {
-          child.start = start;
-          child.end = end;
+        // adding anyting as a sibling to the root node is forbidden
+        // comments should still be allowed, but ignored
+        if (currentParent) {
+          var child = {
+            type: 3,
+            text: text,
+            isComment: true
+          };
+          if (options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          currentParent.children.push(child);
         }
-        currentParent.children.push(child);
       }
     });
     return root
@@ -5489,7 +5494,7 @@
         { start: el.start }
       );
     }
-    if (ast.type === 1) {
+    if (ast && ast.type === 1) {
       var inlineRenderFns = generate(ast, state.options);
       return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
     }
@@ -8246,8 +8251,9 @@
   // prop and event handler respectively.
   function transformModel (options, data) {
     var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input'
-    ;(data.props || (data.props = {}))[prop] = data.model.value;
+    var event = (options.model && options.model.event) || 'input';
+    var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+    ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
     var on = data.on || (data.on = {});
     var existing = on[event];
     var callback = data.model.callback;
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index aebf69603d5..69d53a443ea 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -2000,7 +2000,7 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (isPromise(res)) {
+    if (res && !res._isVue && isPromise(res)) {
       res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
@@ -3126,10 +3126,11 @@ var decodingMap = {
   '&quot;': '"',
   '&amp;': '&',
   '&#10;': '\n',
-  '&#9;': '\t'
+  '&#9;': '\t',
+  '&#39;': "'"
 };
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -3896,16 +3897,20 @@ function parse (
       }
     },
     comment: function comment (text, start, end) {
-      var child = {
-        type: 3,
-        text: text,
-        isComment: true
-      };
-      if (options.outputSourceRange) {
-        child.start = start;
-        child.end = end;
+      // adding anyting as a sibling to the root node is forbidden
+      // comments should still be allowed, but ignored
+      if (currentParent) {
+        var child = {
+          type: 3,
+          text: text,
+          isComment: true
+        };
+        if (options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
-      currentParent.children.push(child);
     }
   });
   return root
@@ -5239,7 +5244,7 @@ function genInlineTemplate (el, state) {
       { start: el.start }
     );
   }
-  if (ast.type === 1) {
+  if (ast && ast.type === 1) {
     var inlineRenderFns = generate(ast, state.options);
     return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
   }
@@ -7996,8 +8001,9 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.props || (data.props = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input';
+  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
+  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 60247716e86..55f4a8a0343 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e,t=(e=require("he"))&&"object"==typeof e&&"default"in e?e.default:e,r=Object.freeze({});function n(e){return null==e}function i(e){return null!=e}function o(e){return!0===e}function a(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function s(e){return null!==e&&"object"==typeof e}var c=Object.prototype.toString;function u(e){return"[object Object]"===c.call(e)}function l(e){return i(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function f(e){return null==e?"":Array.isArray(e)||u(e)&&e.toString===c?JSON.stringify(e,null,2):String(e)}function p(e){var t=parseFloat(e);return isNaN(t)?e:t}function d(e,t){for(var r=Object.create(null),n=e.split(","),i=0;i<n.length;i++)r[n[i]]=!0;return t?function(e){return r[e.toLowerCase()]}:function(e){return r[e]}}var v=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(r){return t[r]||(t[r]=e(r))}}var b=/-(\w)/g,_=g(function(e){return e.replace(b,function(e,t){return t?t.toUpperCase():""})}),w=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),x=/\B([A-Z])/g,S=g(function(e){return e.replace(x,"-$1").toLowerCase()});Function.prototype.bind;function $(e,t){for(var r in t)e[r]=t[r];return e}function A(e){for(var t={},r=0;r<e.length;r++)e[r]&&$(t,e[r]);return t}function O(e,t,r){}var k=function(e,t,r){return!1},C=function(e){return e};function T(e,t){if(e===t)return!0;var r=s(e),n=s(t);if(!r||!n)return!r&&!n&&String(e)===String(t);try{var i=Array.isArray(e),o=Array.isArray(t);if(i&&o)return e.length===t.length&&e.every(function(e,r){return T(e,t[r])});if(e instanceof Date&&t instanceof Date)return e.getTime()===t.getTime();if(i||o)return!1;var a=Object.keys(e),c=Object.keys(t);return a.length===c.length&&a.every(function(r){return T(e[r],t[r])})}catch(e){return!1}}function j(e,t){for(var r=0;r<e.length;r++)if(T(e[r],t))return r;return-1}function F(e){var t=!1;return function(){t||(t=!0,e.apply(this,arguments))}}var 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r=this.renderer.renderScripts(this.context);r&&this.push(r)}this.push(this.template.tail(this.context)),e()},t}(require("stream").Transform),ro=require("lodash.template"),no={escape:/{{([^{][\s\S]+?[^}])}}/g,interpolate:/{{{([\s\S]+?)}}}/g};function io(e){var t=function(e){var t=new Map;return Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.js($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var oo=require("path"),ao=require("serialize-javascript"),so=function(e){this.options=e,this.inject=!1!==e.inject;var t=e.template;if(this.parsedTemplate=t?"string"==typeof t?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:ro(e.slice(0,r),no),neck:ro(e.slice(r,n),no),tail:ro(e.slice(n+t.length),no)}}(t):t:null,this.serialize=e.serializer||function(e){return ao(e,{isJSON:!0})},e.clientManifest){var r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(co),this.prefetchFiles=(r.async||[]).map(co),this.mapFiles=io(r)}};function co(e){var t=e.replace(/\?.*/,""),r=oo.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:uo(r)}}function uo(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}so.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},so.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},so.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},so.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},so.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},so.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},so.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},so.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},so.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return Yi(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return Yi(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},so.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(co)}return e._mappedFiles},so.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new to(this,this.parsedTemplate,e||{})};var lo=require("vm"),fo=require("path"),po=require("resolve"),vo=require("module");function ho(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function mo(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=vo.wrap(r),o=new lo.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=fo.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=po.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function yo(e,t,r,n){var i,o,a=mo(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,ho(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?ho():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var go=require("source-map").SourceMapConsumer,bo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function _o(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(bo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(bo,c)}return e}return e}(e,t)}).join("\n"))}var wo=require("fs"),xo=require("path"),So=require("stream").PassThrough,$o="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function Ao(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=Qi(t,r,n,a),p=new so({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=eo()).promise,r=n.cb);var a="",s=ht(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new mt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ut,canBeLeftOpenTag:lt,modules:ot,directives:$(ct,e.directives)}))}process.env.VUE_ENV="server";var Oo=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&xo.isAbsolute(t)){if(!wo.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||xo.dirname(t),t=wo.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new go(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error($o)}else{if("string"!=typeof t)throw new Error($o);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=yo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=eo()).promise,t=r.cb),u(e).catch(function(e){_o(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){_o(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new So;return u(e).catch(function(e){_o(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){_o(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(Ao);exports.createRenderer=Ao,exports.createBundleRenderer=Oo;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index bc1ecdebcf3..0b53594467f 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.0",
+  "version": "2.6.1",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 8b6498144f8..b152ca77921 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -324,10 +324,11 @@
     '&quot;': '"',
     '&amp;': '&',
     '&#10;': '\n',
-    '&#9;': '\t'
+    '&#9;': '\t',
+    '&#39;': "'"
   };
-  var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+  var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+  var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
   // #5992
   var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -3079,16 +3080,20 @@
         }
       },
       comment: function comment (text, start, end) {
-        var child = {
-          type: 3,
-          text: text,
-          isComment: true
-        };
-        if (options.outputSourceRange) {
-          child.start = start;
-          child.end = end;
+        // adding anyting as a sibling to the root node is forbidden
+        // comments should still be allowed, but ignored
+        if (currentParent) {
+          var child = {
+            type: 3,
+            text: text,
+            isComment: true
+          };
+          if (options.outputSourceRange) {
+            child.start = start;
+            child.end = end;
+          }
+          currentParent.children.push(child);
         }
-        currentParent.children.push(child);
       }
     });
     return root
@@ -4549,7 +4554,7 @@
         { start: el.start }
       );
     }
-    if (ast.type === 1) {
+    if (ast && ast.type === 1) {
       var inlineRenderFns = generate(ast, state.options);
       return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
     }
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index d78c837a8ce..bd5c248b021 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -281,10 +281,11 @@ var decodingMap = {
   '&quot;': '"',
   '&amp;': '&',
   '&#10;': '\n',
-  '&#9;': '\t'
+  '&#9;': '\t',
+  '&#39;': "'"
 };
-var encodedAttr = /&(?:lt|gt|quot|amp);/g;
-var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10|#9);/g;
+var encodedAttr = /&(?:lt|gt|quot|amp|#39);/g;
+var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#39|#10|#9);/g;
 
 // #5992
 var isIgnoreNewlineTag = makeMap('pre,textarea', true);
@@ -2699,16 +2700,20 @@ function parse (
       }
     },
     comment: function comment (text, start, end) {
-      var child = {
-        type: 3,
-        text: text,
-        isComment: true
-      };
-      if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
-        child.start = start;
-        child.end = end;
+      // adding anyting as a sibling to the root node is forbidden
+      // comments should still be allowed, but ignored
+      if (currentParent) {
+        var child = {
+          type: 3,
+          text: text,
+          isComment: true
+        };
+        if (process.env.NODE_ENV !== 'production' && options.outputSourceRange) {
+          child.start = start;
+          child.end = end;
+        }
+        currentParent.children.push(child);
       }
-      currentParent.children.push(child);
     }
   });
   return root
@@ -4182,7 +4187,7 @@ function genInlineTemplate (el, state) {
       { start: el.start }
     );
   }
-  if (ast.type === 1) {
+  if (ast && ast.type === 1) {
     var inlineRenderFns = generate(ast, state.options);
     return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
   }
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 7ede68ae864..7914909e6fb 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.0",
+  "version": "2.6.1",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 1a6f7a576c5359d3f86ceaf080e4e72cbeba030a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 17:51:36 -0500
Subject: [PATCH 777/911] build: release 2.6.1

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8590e871d97..e659c070464 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.0",
+  "version": "2.6.1",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From b034abf48e793189ce8796c259eed2fbfb79bcd0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 22:03:33 -0500
Subject: [PATCH 778/911] fix: always set transformed model value on attrs

---
 src/core/vdom/create-component.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 60bb258e519..658b7ed8a7f 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -250,8 +250,7 @@ function mergeHook (f1: any, f2: any): Function {
 function transformModel (options, data: any) {
   const prop = (options.model && options.model.prop) || 'value'
   const event = (options.model && options.model.event) || 'input'
-  const addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value
   const on = data.on || (data.on = {})
   const existing = on[event]
   const callback = data.model.callback

From 0129b0eb12a1f98a722f100892bfc5e60b0f51ce Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 22:25:19 -0500
Subject: [PATCH 779/911] feat: expose all scoped slots on this.$slots

close #9421
---
 .../vdom/helpers/normalize-scoped-slots.js    | 14 ++++++++++---
 .../component/component-scoped-slot.spec.js   | 20 ++++++++++++++++++-
 2 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index fcb2fcbfb25..e4197428d82 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -1,5 +1,6 @@
 /* @flow */
 
+import { hasOwn } from 'shared/util'
 import { normalizeChildren } from 'core/vdom/helpers/normalize-children'
 
 export function normalizeScopedSlots (
@@ -15,7 +16,7 @@ export function normalizeScopedSlots (
     res = {}
     for (const key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key])
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key])
       }
     }
   }
@@ -30,13 +31,20 @@ export function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn: Function): Function {
-  return scope => {
+function normalizeScopedSlot(normalSlots, key, fn) {
+  const normalized = (scope = {}) => {
     const res = fn(scope)
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
   }
+  // proxy scoped slots on normal $slots
+  if (!hasOwn(normalSlots, key)) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized
+    })
+  }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 18264db98fc..7c6caf26390 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -456,7 +456,7 @@ describe('Component scoped slot', () => {
   })
 
   // new in 2.6, unifying all slots as functions
-  it('non-scoped slots should also be available on $scopedSlots', () => {
+  it('non-scoped slots should also be available on this.$scopedSlots', () => {
     const vm = new Vue({
       template: `<foo>before <div slot="bar" slot-scope="scope">{{ scope.msg }}</div> after</foo>`,
       components: {
@@ -473,6 +473,24 @@ describe('Component scoped slot', () => {
     expect(vm.$el.innerHTML).toBe(`before  after<div>hi</div>`)
   })
 
+  // #9421 the other side of unification is also needed
+  // for library authors
+  it('scoped slots should also be available on this.$slots', () => {
+    const Child = {
+      render: function (h) {
+        return h(
+          'div',
+          this.$slots.content
+        )
+      }
+    }
+    const vm = new Vue({
+      template: `<child><template #content>foo</template></child>`,
+      components: { Child }
+    }).$mount()
+    expect(vm.$el.innerHTML).toBe(`foo`)
+  })
+
   // #4779
   it('should support dynamic slot target', done => {
     const Child = {

From 44a4ca33b95070e9aa53c6924479519d86dd9b36 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 22:39:35 -0500
Subject: [PATCH 780/911] fix: restore slot-scope + v-if behavior

fix #9422
---
 src/compiler/codegen/index.js                 |  7 +++++--
 .../component/component-scoped-slot.spec.js   | 19 +++++++++++++++++++
 test/unit/modules/compiler/codegen.spec.js    | 11 +++++++++--
 3 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index c0038a1f79f..04be3fb1476 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -375,7 +375,8 @@ function genScopedSlot (
   el: ASTElement,
   state: CodegenState
 ): string {
-  if (el.if && !el.ifProcessed) {
+  const isLegacySyntax = el.attrsMap['slot-scope']
+  if (el.if && !el.ifProcessed && !isLegacySyntax) {
     return genIf(el, state, genScopedSlot, `null`)
   }
   if (el.for && !el.forProcessed) {
@@ -383,7 +384,9 @@ function genScopedSlot (
   }
   const fn = `function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
-      ? genChildren(el, state) || 'undefined'
+      ? el.if && isLegacySyntax
+        ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
+        : genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`
   return `{key:${el.slotTarget || `"default"`},fn:${fn}}`
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 7c6caf26390..5141d9b1205 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -650,6 +650,25 @@ describe('Component scoped slot', () => {
     }).then(done)
   })
 
+  // #9422
+  // the behavior of the new syntax is slightly different.
+  it('scoped slot v-if using slot-scope value', () => {
+    const Child = {
+      template: '<div><slot value="foo"/></div>',
+    }
+    const vm = new Vue({
+      components: { Child },
+      template: `
+        <child>
+          <template slot-scope="{ value }" v-if="value">
+            foo {{ value }}
+          </template>
+        </child>
+      `
+    }).$mount()
+    expect(vm.$el.textContent).toMatch(`foo foo`)
+  })
+
   // 2.6 new slot syntax
   describe('v-slot syntax', () => {
     const Foo = {
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 083a736f5b0..cb96e714b9d 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -239,11 +239,18 @@ describe('codegen', () => {
   it('generate scoped slot with multiline v-if', () => {
     assertCodegen(
       '<foo><template v-if="\nshow\n" slot-scope="bar">{{ bar }}</template></foo>',
-      `with(this){return _c('foo',{scopedSlots:_u([(\nshow\n)?{key:"default",fn:function(bar){return [_v(_s(bar))]}}:null],true)})}`
+      `with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return (\nshow\n)?[_v(_s(bar))]:undefined}}],true)})}`
     )
     assertCodegen(
       '<foo><div v-if="\nshow\n" slot="foo" slot-scope="bar">{{ bar }}</div></foo>',
-      `with(this){return _c(\'foo\',{scopedSlots:_u([(\nshow\n)?{key:"foo",fn:function(bar){return _c(\'div\',{},[_v(_s(bar))])}}:null],true)})}`
+      `with(this){return _c(\'foo\',{scopedSlots:_u([{key:"foo",fn:function(bar){return (\nshow\n)?_c(\'div\',{},[_v(_s(bar))]):_e()}}],true)})}`
+    )
+  })
+
+  it('generate scoped slot with new slot syntax', () => {
+    assertCodegen(
+      '<foo><template v-if="show" #default="bar">{{ bar }}</template></foo>',
+      `with(this){return _c('foo',{scopedSlots:_u([(show)?{key:"default",fn:function(bar){return [_v(_s(bar))]}}:null],true)})}`
     )
   })
 

From 22795094568a500421556698a44d04a65fdcb57b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 22:52:39 -0500
Subject: [PATCH 781/911] build: build 2.6.2

---
 dist/vue.common.dev.js                      | 31 ++++++++++++++-------
 dist/vue.common.prod.js                     |  4 +--
 dist/vue.esm.browser.js                     | 29 ++++++++++++-------
 dist/vue.esm.browser.min.js                 |  4 +--
 dist/vue.esm.js                             | 31 ++++++++++++++-------
 dist/vue.js                                 | 31 ++++++++++++++-------
 dist/vue.min.js                             |  4 +--
 dist/vue.runtime.common.dev.js              | 24 ++++++++++------
 dist/vue.runtime.common.prod.js             |  4 +--
 dist/vue.runtime.esm.js                     | 24 ++++++++++------
 dist/vue.runtime.js                         | 24 ++++++++++------
 dist/vue.runtime.min.js                     |  4 +--
 packages/vue-server-renderer/basic.js       | 27 ++++++++++++------
 packages/vue-server-renderer/build.dev.js   | 27 ++++++++++++------
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   |  7 +++--
 packages/vue-template-compiler/build.js     |  7 +++--
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 191 insertions(+), 97 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 22c475309db..619ed40d9fe 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -3888,7 +3888,7 @@ function normalizeScopedSlots (
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -3903,13 +3903,22 @@ function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    if ( scope === void 0 ) scope = {};
+
     var res = fn(scope);
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
+  };
+  // proxy scoped slots on normal $slots
+  if (!hasOwn(normalSlots, key)) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -4572,9 +4581,8 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';
-  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5320,7 +5328,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.1';
+Vue.version = '2.6.2';
 
 /*  */
 
@@ -11076,7 +11084,8 @@ function genScopedSlot (
   el,
   state
 ) {
-  if (el.if && !el.ifProcessed) {
+  var isLegacySyntax = el.attrsMap['slot-scope'];
+  if (el.if && !el.ifProcessed && !isLegacySyntax) {
     return genIf(el, state, genScopedSlot, "null")
   }
   if (el.for && !el.forProcessed) {
@@ -11084,7 +11093,9 @@ function genScopedSlot (
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'undefined'
+      ? el.if && isLegacySyntax
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index 66e2ef885b3..44e1c7f63c3 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 2a3978e4cbb..83e124d4722 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -3934,7 +3934,7 @@ function normalizeScopedSlots (
     res = {};
     for (const key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -3949,13 +3949,20 @@ function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return scope => {
+function normalizeScopedSlot(normalSlots, key, fn) {
+  const normalized = (scope = {}) => {
     const res = fn(scope);
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
+  };
+  // proxy scoped slots on normal $slots
+  if (!hasOwn(normalSlots, key)) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -4615,9 +4622,8 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   const prop = (options.model && options.model.prop) || 'value';
-  const event = (options.model && options.model.event) || 'input';
-  const addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+  const event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
   const on = data.on || (data.on = {});
   const existing = on[event];
   const callback = data.model.callback;
@@ -5353,7 +5359,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.1';
+Vue.version = '2.6.2';
 
 /*  */
 
@@ -11139,7 +11145,8 @@ function genScopedSlot (
   el,
   state
 ) {
-  if (el.if && !el.ifProcessed) {
+  const isLegacySyntax = el.attrsMap['slot-scope'];
+  if (el.if && !el.ifProcessed && !isLegacySyntax) {
     return genIf(el, state, genScopedSlot, `null`)
   }
   if (el.for && !el.forProcessed) {
@@ -11147,7 +11154,9 @@ function genScopedSlot (
   }
   const fn = `function(${String(el.slotScope)}){` +
     `return ${el.tag === 'template'
-      ? genChildren(el, state) || 'undefined'
+      ? el.if && isLegacySyntax
+        ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
+        : genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`;
   return `{key:${el.slotTarget || `"default"`},fn:${fn}}`
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 40241f78fad..111e977f8f0 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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${"template"===t.tag?t.if&&n?`(${t.if})?${Ii(t,e)||"undefined"}:undefined`:Ii(t,e)||"undefined":Si(t,e)}}`;return`{key:${t.slotTarget||'"default"'},fn:${o}}`}function Ii(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||Si)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Di(r)||r.ifConditions&&r.ifConditions.some(t=>Di(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Pi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Di(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Pi(t,e){return 1===t.type?Si(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Fi(JSON.stringify(n.text))})`;var n,o}function Ri(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Fi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Fi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Hi(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Bi(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Hi(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Hi(t,c)),e[s]=a}}const Ui=(zi=function(t,e){const n=Qs(t.trim(),e);!1!==e.optimize&&hi(n,e);const o=Oi(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=zi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Bi(e)}});var zi;const{compile:Vi,compileToFunctions:Ki}=Ui(ui);let Ji;function qi(t){return(Ji=Ji||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Ji.innerHTML.indexOf("&#10;")>0}const Wi=!!U&&qi(!1),Zi=!!U&&qi(!0),Gi=v(t=>{const e=zn(t);return e&&e.innerHTML}),Xi=pn.prototype.$mount;pn.prototype.$mount=function(t,e){if((t=t&&zn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=Gi(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Ki(e,{outputSourceRange:!1,shouldDecodeNewlines:Wi,shouldDecodeNewlinesForHref:Zi,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return Xi.call(this,t,e)},pn.compile=Ki;export default pn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 4cf92fcbe17..81b2c0623ad 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -3901,7 +3901,7 @@ function normalizeScopedSlots (
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -3916,13 +3916,22 @@ function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    if ( scope === void 0 ) scope = {};
+
     var res = fn(scope);
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
+  };
+  // proxy scoped slots on normal $slots
+  if (!hasOwn(normalSlots, key)) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -4585,9 +4594,8 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';
-  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5340,7 +5348,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.1';
+Vue.version = '2.6.2';
 
 /*  */
 
@@ -11110,7 +11118,8 @@ function genScopedSlot (
   el,
   state
 ) {
-  if (el.if && !el.ifProcessed) {
+  var isLegacySyntax = el.attrsMap['slot-scope'];
+  if (el.if && !el.ifProcessed && !isLegacySyntax) {
     return genIf(el, state, genScopedSlot, "null")
   }
   if (el.for && !el.forProcessed) {
@@ -11118,7 +11127,9 @@ function genScopedSlot (
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'undefined'
+      ? el.if && isLegacySyntax
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
diff --git a/dist/vue.js b/dist/vue.js
index 21c5826f898..b89f44e22df 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -3892,7 +3892,7 @@
       res = {};
       for (var key in slots) {
         if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(slots[key]);
+          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
         }
       }
     }
@@ -3907,13 +3907,22 @@
     return res
   }
 
-  function normalizeScopedSlot(fn) {
-    return function (scope) {
+  function normalizeScopedSlot(normalSlots, key, fn) {
+    var normalized = function (scope) {
+      if ( scope === void 0 ) scope = {};
+
       var res = fn(scope);
       return res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res)
+    };
+    // proxy scoped slots on normal $slots
+    if (!hasOwn(normalSlots, key)) {
+      Object.defineProperty(normalSlots, key, {
+        get: normalized
+      });
     }
+    return normalized
   }
 
   function proxyNormalSlot(slots, key) {
@@ -4576,9 +4585,8 @@
   // prop and event handler respectively.
   function transformModel (options, data) {
     var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input';
-    var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-    ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
     var on = data.on || (data.on = {});
     var existing = on[event];
     var callback = data.model.callback;
@@ -5324,7 +5332,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.1';
+  Vue.version = '2.6.2';
 
   /*  */
 
@@ -11080,7 +11088,8 @@
     el,
     state
   ) {
-    if (el.if && !el.ifProcessed) {
+    var isLegacySyntax = el.attrsMap['slot-scope'];
+    if (el.if && !el.ifProcessed && !isLegacySyntax) {
       return genIf(el, state, genScopedSlot, "null")
     }
     if (el.for && !el.forProcessed) {
@@ -11088,7 +11097,9 @@
     }
     var fn = "function(" + (String(el.slotScope)) + "){" +
       "return " + (el.tag === 'template'
-        ? genChildren(el, state) || 'undefined'
+        ? el.if && isLegacySyntax
+          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+          : genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
     return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
   }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 3e3d9a0e8d4..a2a499e7cff 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index ff744844901..389e6632973 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -3879,7 +3879,7 @@ function normalizeScopedSlots (
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -3894,13 +3894,22 @@ function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    if ( scope === void 0 ) scope = {};
+
     var res = fn(scope);
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
+  };
+  // proxy scoped slots on normal $slots
+  if (!hasOwn(normalSlots, key)) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -4563,9 +4572,8 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';
-  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5311,7 +5319,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.1';
+Vue.version = '2.6.2';
 
 /*  */
 
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index 38856235f85..839e299e7cb 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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so={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){so.componentUpdated(t,e,n)}):co(t,e,n.context),t._vOptions=[].map.call(t.options,fo)):("textarea"===n.tag||zn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",po),t.addEventListener("compositionend",vo),t.addEventListener("change",vo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){co(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,fo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return lo(t,o)}):e.value!==e.oldValue&&lo(e.value,o))&&ho(t,"change")}}};function co(t,e,n){uo(t,e,n),(W||K)&&setTimeout(function(){uo(t,e,n)},0)}function uo(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,fo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(fo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function lo(t,e){return e.every(function(e){return!j(e,t)})}function fo(t){return"_value"in t?t._value:t.value}function po(t){t.target.composing=!0}function vo(t){t.target.composing&&(t.target.composing=!1,ho(t.target,"input"))}function ho(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function mo(t){return!t.componentInstance||t.data&&t.data.transition?t:mo(t.componentInstance._vnode)}var yo={model:so,show:{bind:function(t,e,n){var r=e.value,o=(n=mo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,eo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=mo(n)).data&&n.data.transition?(n.data.show=!0,r?eo(n,function(){t.style.display=t.__vOriginalDisplay}):no(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},go={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function _o(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?_o(ce(e.children)):t}function bo(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Co(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var Ao=function(t){return t.tag||se(t)},wo=function(t){return"show"===t.name},$o={name:"transition",props:go,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(Ao)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=_o(i);if(!a)return i;if(this._leaving)return Co(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=bo(this),u=this._vnode,l=_o(u);if(a.data.directives&&a.data.directives.some(wo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!se(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Co(t,i);if("in-out"===r){if(se(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},xo=x({tag:String,moveClass:String},go);function Oo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function ko(t){t.data.newPos=t.elm.getBoundingClientRect()}function So(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete xo.mode;var Eo={Transition:$o,TransitionGroup:{props:xo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=ye(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=bo(this),s=0;s<o.length;s++){var 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t.$el=e,t.$options.render||(t.$options.render=ft),be(t,"beforeMount"),r=function(){t._update(t._render(),n)},new Ie(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&be(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,be(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){N.devtools&&Y&&Y.emit("init",yn)},0),module.exports=yn;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index df2d549cc07..1c09d41199e 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -3892,7 +3892,7 @@ function normalizeScopedSlots (
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -3907,13 +3907,22 @@ function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    if ( scope === void 0 ) scope = {};
+
     var res = fn(scope);
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
+  };
+  // proxy scoped slots on normal $slots
+  if (!hasOwn(normalSlots, key)) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -4576,9 +4585,8 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';
-  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
@@ -5331,7 +5339,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.1';
+Vue.version = '2.6.2';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index dafc00b8860..89a65bdf4fd 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -3883,7 +3883,7 @@
       res = {};
       for (var key in slots) {
         if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(slots[key]);
+          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
         }
       }
     }
@@ -3898,13 +3898,22 @@
     return res
   }
 
-  function normalizeScopedSlot(fn) {
-    return function (scope) {
+  function normalizeScopedSlot(normalSlots, key, fn) {
+    var normalized = function (scope) {
+      if ( scope === void 0 ) scope = {};
+
       var res = fn(scope);
       return res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res)
+    };
+    // proxy scoped slots on normal $slots
+    if (!hasOwn(normalSlots, key)) {
+      Object.defineProperty(normalSlots, key, {
+        get: normalized
+      });
     }
+    return normalized
   }
 
   function proxyNormalSlot(slots, key) {
@@ -4567,9 +4576,8 @@
   // prop and event handler respectively.
   function transformModel (options, data) {
     var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input';
-    var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-    ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
     var on = data.on || (data.on = {});
     var existing = on[event];
     var callback = data.model.callback;
@@ -5315,7 +5323,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.1';
+  Vue.version = '2.6.2';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 84951f99717..9f3ae156f1c 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.1
+ * Vue.js v2.6.2
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return 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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 7d7cf80ceba..631fa00807f 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -5517,7 +5517,8 @@
     el,
     state
   ) {
-    if (el.if && !el.ifProcessed) {
+    var isLegacySyntax = el.attrsMap['slot-scope'];
+    if (el.if && !el.ifProcessed && !isLegacySyntax) {
       return genIf(el, state, genScopedSlot, "null")
     }
     if (el.for && !el.forProcessed) {
@@ -5525,7 +5526,9 @@
     }
     var fn = "function(" + (String(el.slotScope)) + "){" +
       "return " + (el.tag === 'template'
-        ? genChildren(el, state) || 'undefined'
+        ? el.if && isLegacySyntax
+          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+          : genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
     return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
   }
@@ -7795,7 +7798,7 @@
       res = {};
       for (var key in slots) {
         if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(slots[key]);
+          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
         }
       }
     }
@@ -7810,13 +7813,22 @@
     return res
   }
 
-  function normalizeScopedSlot(fn) {
-    return function (scope) {
+  function normalizeScopedSlot(normalSlots, key, fn) {
+    var normalized = function (scope) {
+      if ( scope === void 0 ) scope = {};
+
       var res = fn(scope);
       return res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res)
+    };
+    // proxy scoped slots on normal $slots
+    if (!hasOwn(normalSlots, key)) {
+      Object.defineProperty(normalSlots, key, {
+        get: normalized
+      });
     }
+    return normalized
   }
 
   function proxyNormalSlot(slots, key) {
@@ -8251,9 +8263,8 @@
   // prop and event handler respectively.
   function transformModel (options, data) {
     var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input';
-    var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-    ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
     var on = data.on || (data.on = {});
     var existing = on[event];
     var callback = data.model.callback;
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 69d53a443ea..a672e4a6ca3 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -5267,7 +5267,8 @@ function genScopedSlot (
   el,
   state
 ) {
-  if (el.if && !el.ifProcessed) {
+  var isLegacySyntax = el.attrsMap['slot-scope'];
+  if (el.if && !el.ifProcessed && !isLegacySyntax) {
     return genIf(el, state, genScopedSlot, "null")
   }
   if (el.for && !el.forProcessed) {
@@ -5275,7 +5276,9 @@ function genScopedSlot (
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'undefined'
+      ? el.if && isLegacySyntax
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
@@ -7545,7 +7548,7 @@ function normalizeScopedSlots (
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -7560,13 +7563,22 @@ function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    if ( scope === void 0 ) scope = {};
+
     var res = fn(scope);
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
+  };
+  // proxy scoped slots on normal $slots
+  if (!hasOwn(normalSlots, key)) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -8001,9 +8013,8 @@ function mergeHook$1 (f1, f2) {
 // prop and event handler respectively.
 function transformModel (options, data) {
   var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input';
-  var addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
-  ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value;
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
   var on = data.on || (data.on = {});
   var existing = on[event];
   var callback = data.model.callback;
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 55f4a8a0343..d09674532fb 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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Promise(function(r){t._registeredComponents=new Set;var n=a(e,ho(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?ho():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var go=require("source-map").SourceMapConsumer,bo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function _o(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(bo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(bo,c)}return e}return e}(e,t)}).join("\n"))}var wo=require("fs"),xo=require("path"),So=require("stream").PassThrough,$o="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function Ao(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=Qi(t,r,n,a),p=new so({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=eo()).promise,r=n.cb);var a="",s=ht(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new mt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ut,canBeLeftOpenTag:lt,modules:ot,directives:$(ct,e.directives)}))}process.env.VUE_ENV="server";var Oo=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&xo.isAbsolute(t)){if(!wo.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||xo.dirname(t),t=wo.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new go(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error($o)}else{if("string"!=typeof t)throw new Error($o);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=yo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=eo()).promise,t=r.cb),u(e).catch(function(e){_o(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){_o(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new So;return u(e).catch(function(e){_o(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){_o(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(Ao);exports.createRenderer=Ao,exports.createBundleRenderer=Oo;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 0b53594467f..896cbdde5be 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.1",
+  "version": "2.6.2",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index b152ca77921..96dc736ad75 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -4577,7 +4577,8 @@
     el,
     state
   ) {
-    if (el.if && !el.ifProcessed) {
+    var isLegacySyntax = el.attrsMap['slot-scope'];
+    if (el.if && !el.ifProcessed && !isLegacySyntax) {
       return genIf(el, state, genScopedSlot, "null")
     }
     if (el.for && !el.forProcessed) {
@@ -4585,7 +4586,9 @@
     }
     var fn = "function(" + (String(el.slotScope)) + "){" +
       "return " + (el.tag === 'template'
-        ? genChildren(el, state) || 'undefined'
+        ? el.if && isLegacySyntax
+          ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+          : genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
     return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
   }
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index bd5c248b021..cdb1aef88e8 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -4210,7 +4210,8 @@ function genScopedSlot (
   el,
   state
 ) {
-  if (el.if && !el.ifProcessed) {
+  var isLegacySyntax = el.attrsMap['slot-scope'];
+  if (el.if && !el.ifProcessed && !isLegacySyntax) {
     return genIf(el, state, genScopedSlot, "null")
   }
   if (el.for && !el.forProcessed) {
@@ -4218,7 +4219,9 @@ function genScopedSlot (
   }
   var fn = "function(" + (String(el.slotScope)) + "){" +
     "return " + (el.tag === 'template'
-      ? genChildren(el, state) || 'undefined'
+      ? el.if && isLegacySyntax
+        ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
+        : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
   return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
 }
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 7914909e6fb..c9f69208b14 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.1",
+  "version": "2.6.2",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From ee9b684d0bca0c6260092b98ac81d739d35a1587 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 4 Feb 2019 22:52:44 -0500
Subject: [PATCH 782/911] build: release 2.6.2

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index e659c070464..4eab1164f76 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.1",
+  "version": "2.6.2",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From d06e3aff96f2ca3a78a1611b52412d665a02843e Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Tue, 5 Feb 2019 11:26:42 -0500
Subject: [PATCH 783/911] chore: update backers [ci skip] (#9423)

---
 BACKERS.md | 143 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 80 insertions(+), 63 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index b86d573f7a6..4653d56cbaf 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -334,121 +334,138 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <h2 align="center">Generous Backers via Patreon ($50+)</h2>
 
 <!--50 start-->
+- Jamie K
 - Wasim Khamlichi
 - errorrik
 - Alex Balashov
 - Konstantin Levinski
-- Ernest Sim
 - Blaise Laflamme
+- Ernest Sim
 - Dilettant
+- Sean Ferguson
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
 
 <!--10 start-->
-- Luca Borghini
-- kazuya kawaguchi
-- Keisuke KITA
-- Santa Cruz
+- Masahiro Tanaka
+- Shawn Wildermuth
+- Samuel Smith
+- donny
+- Jake Ingman
 - Simon East
-- Benjamin Listwon
+- kazupon
 - Lars Andreas Ness
-- Victor Tolbert
-- Stephen Hartley
-- Wen-Tien Chang
+- Luca Borghini
+- Sean Washington
+- Benjamin Listwon
+- Keisuke Kita
 - Kirk Lewis
-- Karol F
+- Wen-Tien Chang
+- Victor Tolbert
+- Stephen Michael Hartley
+- Karol
+- Phan An
 - Miljan Aleksic
-- 叶解
-- Jake Ingman
+- James J. Ye
 - Barbara Liau
-- 4
+- Luiz
+- Matsumoto Takamasa
 - Jarek Tkaczyk
-- Niannian Modisette
-- Ivan Sieder
-- Matt Jones
-- Duncan J Kenzie
+- Duncan Kenzie
 - Mike Margerum
 - Guy Gavergun
-- Intevation GmbH
-- Luiz Eduardo  Tanure Bacelar
-- Zoran Knezevic
+- Matt Jones
+- Niannian Modisette
+- Bernhard E. Reiter
 - Pierre Vanhulst
+- Zoran Knezevic
+- Chengzhi Yin
+- Shinya Katayama
 - Jon Hobbs-Smith
-- Akiho Nagao
+- Anthony Estebe
 - Asaf Yishai
-- Estebe Anthony
 - Haim Yulzari
+- Akiho Nagao
 - Jeremy Tan
 - Jim Raden
-- Fille Åström
-- Samuel Smith
-- Tyler Scott
-- Thong Yong Jun
+- Tai Shi Ling
+- IMGNRY
+- Yong Jun Thong
 - Matias Verdier
-- Jamie McElwain
+- Chih-Hsuan Fan
+- Tyler
+- Daniel Waghorn
 - Vivekanandhan Natarajan
 - Rafael Belvederese
+- Jamie McElwain
+- Cliff Hess
+- Rob Yedlin
 - Mickaël Andrieu
 - Guilherme S L de Souza
-- Rob Yedlin
-- Daniel Waghorn
-- Chih-Hsuan, Fan
 - Jordan Oroshiba
-- Cliff Hess
-- Joe Ray Gregory
+- Joe Gregory
+- Marcos Moura
 - RADD Creative
-- Rua Cura D'ars
 - Richard Simpson
+- Alok Pant
 - Jessie Hernandez
-- Eric Fong
+- Ivan Sieder
 - Aparajita Fishman
+- Eric
+- Christo Crampton
 - Romain Lienard
 - Bohdan Kokotko
 - Donald Fischer
-- Alexander Weiher
-- Shinya Katayama
 - Jere Sjöroos
-- Wakana Seki
 - David Ang
-- Dom
+- Alexander Weiher
+- Oskar Lindgren
+- Jaeyoung Lee
+- Wakana Seki
 - Ben Hong
-- David Kaplan
 - John Cleveland
-- Jaeyoung Lee
-- Amor
 - Tom Ootes
-- Andy Foster
-- Joe Cochran
-- Matt Sencenbaugh
-- Daniel Mattingley
-- Teon Ooi
+- Domenico Gaudioso
+- David Kaplan
+- Amor
+- Andy
 - Hannes Kochniß
-- Colt Borg
+- Juan Bermudez
+- Daniel Mattingley
+- Matt Sencenbaugh
+- Joe Cochran
 - Chris Calo
-- Christo Crampton
-- Johnny Austin
-- Aaron Hung
-- Soichiro Isshiki
+- Colt Borg
+- Teon Ooi
+- Alberto T. Payero Mota
+- Elon Hung
+- Milan Zivkovic
+- Johnny Ray Austin
 - Tom Meagher
+- Soichiro Isshiki
 - Abraham Arango
-- Marko Bošković
-- Ed Linklater
+- Marko Boskovic
 - Garion Herman
-- Chris Bemister
-- Anfrew Willis
-- Shawn Wildermuth
-- Carlos Adrián
-- Timothy J Bass
+- Ed Linklater
+- Christopher Bemister
+- Andrew Willis
+- Princeyesuraj Edward
 - Yusuke Kawabata
+- We
+- Carlos Adrián
 - Nick Dandakis
-- JI CAI
-- 龙腾道
-- Milos Stojanovic
-- Matkovsky Peter
 - shimbaco
-- Princeyesuraj Edward
+- 极 蔡
+- 龙腾道
+- alcalbg
 - Kenneth Crawford
+- Peter Matkovsky
+- Fabien GuySake Ungerer
+- Kevin Batdorf
+- Masato Miura
+- Fedor Indutny
+- Juli A Schlack
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>

From fdc5f0363bf528ddd1eda73c313c860ea8cf5e7a Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Tue, 5 Feb 2019 11:30:33 -0500
Subject: [PATCH 784/911] [automated] Patreon sponsors update (#9424)

* chore: update sponsors [ci skip]

* Update BACKERS.md

* Update README.md
---
 BACKERS.md | 5 -----
 README.md  | 5 -----
 2 files changed, 10 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 4653d56cbaf..3bbe5cb2a3d 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -67,11 +67,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://e.coding.net/?utm_source=vue.js" target="_blank">
-          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coding.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="http://www.dcloud.io/?hmsr=vuejsorg&hmpl=&hmcu=&hmkw=&hmci=" target="_blank">
           <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dcloud.gif">
diff --git a/README.md b/README.md
index 6d63d8f92d3..51f327e794b 100644
--- a/README.md
+++ b/README.md
@@ -77,11 +77,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://e.coding.net/?utm_source=vue.js" target="_blank">
-          <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/coding.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="http://www.dcloud.io/?hmsr=vuejsorg&hmpl=&hmcu=&hmkw=&hmci=" target="_blank">
           <img width="177px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dcloud.gif">

From 2ef67f868dc4ca95453a091a589bab24e226f045 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Wed, 6 Feb 2019 00:34:16 +0800
Subject: [PATCH 785/911] chore: fix typo in scheduler.js [ci skip] (#9425)

---
 src/core/observer/scheduler.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index 0473a07ac32..d78b4d0fee8 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -44,7 +44,7 @@ export let currentFlushTimestamp = 0
 let getNow: () => number = Date.now
 
 // Determine what event timestamp the browser is using. Annoyingly, the
-// timestamp can either be hi-res ( relative to poge load) or low-res
+// timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
 if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {

From b9de23b1008b52deca7e7df40843e318a42f3f53 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 5 Feb 2019 22:16:55 -0500
Subject: [PATCH 786/911] fix: async component should use render owner as force
 update context

Previously, an async component uses its lexical owner as the force
update context. This works when the async component is rendered in a
scoped slot because in the past parent components always force update
child components with any type of slots. After the optimization in
f219bed though, child components with only scoped slots are no longer
force-updated, and this cause async components inside scoped slots to
not trigger the proper update. Turns out they should have used the
actual render owner (the component that invokes the scoped slot) as the
force update context all along.

fix #9432
---
 src/core/instance/render.js                   | 13 +++++++
 src/core/vdom/create-component.js             |  2 +-
 .../vdom/helpers/resolve-async-component.js   | 19 ++++++-----
 .../component/component-scoped-slot.spec.js   | 34 +++++++++++++++++++
 .../modules/vdom/create-component.spec.js     | 11 ++++--
 5 files changed, 66 insertions(+), 13 deletions(-)

diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index 2b9c8d11951..f3ebe8d7a96 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -51,6 +51,13 @@ export function initRender (vm: Component) {
   }
 }
 
+export let currentRenderingInstance: Component | null = null
+
+// for testing only
+export function setCurrentRenderingInstance (vm: Component) {
+  currentRenderingInstance = vm
+}
+
 export function renderMixin (Vue: Class<Component>) {
   // install runtime convenience helpers
   installRenderHelpers(Vue.prototype)
@@ -76,6 +83,10 @@ export function renderMixin (Vue: Class<Component>) {
     // render self
     let vnode
     try {
+      // There's no need to maintain a stack becaues all render fns are called
+      // separately from one another. Nested component's render fns are called
+      // when parent component is patched.
+      currentRenderingInstance = vm
       vnode = render.call(vm._renderProxy, vm.$createElement)
     } catch (e) {
       handleError(e, vm, `render`)
@@ -92,6 +103,8 @@ export function renderMixin (Vue: Class<Component>) {
       } else {
         vnode = vm._vnode
       }
+    } finally {
+      currentRenderingInstance = null
     }
     // if the returned array contains only a single node, allow it
     if (Array.isArray(vnode) && vnode.length === 1) {
diff --git a/src/core/vdom/create-component.js b/src/core/vdom/create-component.js
index 658b7ed8a7f..1e9bb217a6a 100644
--- a/src/core/vdom/create-component.js
+++ b/src/core/vdom/create-component.js
@@ -129,7 +129,7 @@ export function createComponent (
   let asyncFactory
   if (isUndef(Ctor.cid)) {
     asyncFactory = Ctor
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context)
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor)
     if (Ctor === undefined) {
       // return a placeholder node for async component, which is rendered
       // as a comment node but preserves all the raw information for the node.
diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 52ecd2c925c..5714b4ead00 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -12,6 +12,7 @@ import {
 } from 'core/util/index'
 
 import { createEmptyVNode } from 'core/vdom/vnode'
+import { currentRenderingInstance } from 'core/instance/render'
 
 function ensureCtor (comp: any, base) {
   if (
@@ -40,8 +41,7 @@ export function createAsyncPlaceholder (
 
 export function resolveAsyncComponent (
   factory: Function,
-  baseCtor: Class<Component>,
-  context: Component
+  baseCtor: Class<Component>
 ): Class<Component> | void {
   if (isTrue(factory.error) && isDef(factory.errorComp)) {
     return factory.errorComp
@@ -55,20 +55,21 @@ export function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (isDef(factory.contexts)) {
+  const owner = currentRenderingInstance
+  if (isDef(factory.owners)) {
     // already pending
-    factory.contexts.push(context)
+    factory.owners.push(owner)
   } else {
-    const contexts = factory.contexts = [context]
+    const owners = factory.owners = [owner]
     let sync = true
 
     const forceRender = (renderCompleted: boolean) => {
-      for (let i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate()
+      for (let i = 0, l = owners.length; i < l; i++) {
+        (owners[i]: any).$forceUpdate()
       }
 
       if (renderCompleted) {
-        contexts.length = 0
+        owners.length = 0
       }
     }
 
@@ -80,7 +81,7 @@ export function resolveAsyncComponent (
       if (!sync) {
         forceRender(true)
       } else {
-        contexts.length = 0
+        owners.length = 0
       }
     })
 
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 5141d9b1205..9a2dd0cc714 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -935,4 +935,38 @@ describe('Component scoped slot', () => {
       expect(childUpdate.calls.count()).toBe(1)
     }).then(done)
   })
+
+  // #9432: async components inside a scoped slot should trigger update of the
+  // component that invoked the scoped slot, not the lexical context component.
+  it('async component inside scoped slot', done => {
+    let p
+    const vm = new Vue({
+      template: `
+        <foo>
+          <template #default>
+            <bar />
+          </template>
+        </foo>
+      `,
+      components: {
+        foo: {
+          template: `<div>foo<slot/></div>`
+        },
+        bar: resolve => {
+          setTimeout(() => {
+            resolve({
+              template: `<div>bar</div>`
+            })
+            next()
+          }, 0)
+        }
+      }
+    }).$mount()
+
+    function next () {
+      waitForUpdate(() => {
+        expect(vm.$el.textContent).toBe(`foobar`)
+      }).then(done)
+    }
+  })
 })
diff --git a/test/unit/modules/vdom/create-component.spec.js b/test/unit/modules/vdom/create-component.spec.js
index c5a1f717c95..9ca34f68280 100644
--- a/test/unit/modules/vdom/create-component.spec.js
+++ b/test/unit/modules/vdom/create-component.spec.js
@@ -1,5 +1,6 @@
 import Vue from 'vue'
 import { createComponent } from 'core/vdom/create-component'
+import { setCurrentRenderingInstance } from 'core/instance/render'
 
 describe('create-component', () => {
   let vm
@@ -55,13 +56,17 @@ describe('create-component', () => {
       }, 0)
     }
     function go () {
+      setCurrentRenderingInstance(vm)
       vnode = createComponent(async, data, vm, vm)
+      setCurrentRenderingInstance(null)
       expect(vnode.isComment).toBe(true) // not to be loaded yet.
       expect(vnode.asyncFactory).toBe(async)
-      expect(vnode.asyncFactory.contexts.length).toEqual(1)
+      expect(vnode.asyncFactory.owners.length).toEqual(1)
     }
     function loaded () {
+      setCurrentRenderingInstance(vm)
       vnode = createComponent(async, data, vm, vm)
+      setCurrentRenderingInstance(null)
       expect(vnode.tag).toMatch(/vue-component-[0-9]+-child/)
       expect(vnode.data.staticAttrs).toEqual({ class: 'foo' })
       expect(vnode.children).toBeUndefined()
@@ -69,7 +74,7 @@ describe('create-component', () => {
       expect(vnode.elm).toBeUndefined()
       expect(vnode.ns).toBeUndefined()
       expect(vnode.context).toEqual(vm)
-      expect(vnode.asyncFactory.contexts.length).toEqual(0)
+      expect(vnode.asyncFactory.owners.length).toEqual(0)
       expect(vm.$forceUpdate).toHaveBeenCalled()
       done()
     }
@@ -90,7 +95,7 @@ describe('create-component', () => {
     }
     const vnode = createComponent(async, data, vm, vm)
     expect(vnode.asyncFactory).toBe(async)
-    expect(vnode.asyncFactory.contexts.length).toEqual(0)
+    expect(vnode.asyncFactory.owners.length).toEqual(0)
     expect(vnode.tag).toMatch(/vue-component-[0-9]+-child/)
     expect(vnode.data.staticAttrs).toEqual({ class: 'bar' })
     expect(vnode.children).toBeUndefined()

From 54e6a121e992f20c03f104533caa4c59e59b1ee7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Kr=C3=BCger?= <2pi_r2@gmx.de>
Date: Wed, 6 Feb 2019 04:20:03 +0100
Subject: [PATCH 787/911] fix(types): add Vue.version to types (#9431)

---
 types/vue.d.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/types/vue.d.ts b/types/vue.d.ts
index 1b92e666c6a..55e44657430 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -122,6 +122,7 @@ export interface VueConstructor<V extends Vue = Vue> {
   observable<T>(obj: T): T;
 
   config: VueConfiguration;
+  version: string;
 }
 
 export const Vue: VueConstructor;

From 24b4640c1f268722f5ab8f03e68e2df897cfbdf6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 11:34:37 -0500
Subject: [PATCH 788/911] fix: avoid exposing internal flags on $scopedSlots

ref #9443
---
 src/core/instance/lifecycle.js                |  1 +
 .../vdom/helpers/normalize-scoped-slots.js    |  5 ++--
 .../component/component-scoped-slot.spec.js   | 23 +++++++++++++++++++
 .../modules/vdom/patch/edge-cases.spec.js     | 23 -------------------
 4 files changed, 27 insertions(+), 25 deletions(-)

diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index debe94bc068..5754e3fa34a 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -233,6 +233,7 @@ export function updateChildComponent (
     (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
     (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
   )
+
   // Any static slot children from the parent may have changed during parent's
   // update. Dynamic scoped slots may also have changed. In such cases, a forced
   // update is necessary to ensure correctness.
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index e4197428d82..b575ff605ec 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -1,6 +1,7 @@
 /* @flow */
 
 import { hasOwn } from 'shared/util'
+import { def } from 'core/util/lang'
 import { normalizeChildren } from 'core/vdom/helpers/normalize-children'
 
 export function normalizeScopedSlots (
@@ -26,8 +27,8 @@ export function normalizeScopedSlots (
       res[key] = proxyNormalSlot(normalSlots, key)
     }
   }
-  res._normalized = true
-  res.$stable = slots ? slots.$stable : true
+  def(res, '_normalized', true)
+  def(res, '$stable', slots ? !!slots.$stable : true)
   return res
 }
 
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 9a2dd0cc714..b520cf1e6b0 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -969,4 +969,27 @@ describe('Component scoped slot', () => {
       }).then(done)
     }
   })
+
+  // regression #9396
+  it('should not force update child with no slot content', done => {
+    const Child = {
+      updated: jasmine.createSpy(),
+      template: `<div></div>`
+    }
+
+    const parent = new Vue({
+      template: `<div>{{ count }}<child/></div>`,
+      data: {
+        count: 0
+      },
+      components: { Child }
+    }).$mount()
+
+    expect(parent.$el.textContent).toBe(`0`)
+    parent.count++
+    waitForUpdate(() => {
+      expect(parent.$el.textContent).toBe(`1`)
+      expect(Child.updated).not.toHaveBeenCalled()
+    }).then(done)
+  })
 })
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index dd8895bc0d0..a1c492d4b3e 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -410,27 +410,4 @@ describe('vdom patch: edge cases', () => {
     expect(vm.$el.textContent).toBe('FooBar')
     expect(inlineHookSpy.calls.count()).toBe(2)
   })
-
-  // regression #9396
-  it('should not force update child with no slot content', done => {
-    const Child = {
-      updated: jasmine.createSpy(),
-      template: `<div></div>`
-    }
-
-    const parent = new Vue({
-      template: `<div>{{ count }}<child/></div>`,
-      data: {
-        count: 0
-      },
-      components: { Child }
-    }).$mount()
-
-    expect(parent.$el.textContent).toBe(`0`)
-    parent.count++
-    waitForUpdate(() => {
-      expect(parent.$el.textContent).toBe(`1`)
-      expect(Child.updated).not.toHaveBeenCalled()
-    }).then(done)
-  })
 })

From b6247fc9d7442c50d60ccf366a7cb183a4d02129 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 12:28:10 -0500
Subject: [PATCH 789/911] refactor: split resolve-scoped-slot into its own file

---
 src/core/instance/render-helpers/index.js      |  2 +-
 .../render-helpers/resolve-scoped-slots.js     | 18 ++++++++++++++++++
 .../instance/render-helpers/resolve-slots.js   | 17 -----------------
 3 files changed, 19 insertions(+), 18 deletions(-)
 create mode 100644 src/core/instance/render-helpers/resolve-scoped-slots.js

diff --git a/src/core/instance/render-helpers/index.js b/src/core/instance/render-helpers/index.js
index e92801603e8..04e7f9cfe1e 100644
--- a/src/core/instance/render-helpers/index.js
+++ b/src/core/instance/render-helpers/index.js
@@ -9,7 +9,7 @@ import { checkKeyCodes } from './check-keycodes'
 import { bindObjectProps } from './bind-object-props'
 import { renderStatic, markOnce } from './render-static'
 import { bindObjectListeners } from './bind-object-listeners'
-import { resolveScopedSlots } from './resolve-slots'
+import { resolveScopedSlots } from './resolve-scoped-slots'
 import { bindDynamicKeys, prependModifier } from './bind-dynamic-keys'
 
 export function installRenderHelpers (target: any) {
diff --git a/src/core/instance/render-helpers/resolve-scoped-slots.js b/src/core/instance/render-helpers/resolve-scoped-slots.js
new file mode 100644
index 00000000000..a095865ebf2
--- /dev/null
+++ b/src/core/instance/render-helpers/resolve-scoped-slots.js
@@ -0,0 +1,18 @@
+/* @flow */
+
+export function resolveScopedSlots (
+  fns: ScopedSlotsData, // see flow/vnode
+  hasDynamicKeys?: boolean,
+  res?: Object
+): { [key: string]: Function, $stable: boolean } {
+  res = res || { $stable: !hasDynamicKeys }
+  for (let i = 0; i < fns.length; i++) {
+    const slot = fns[i]
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res)
+    } else if (slot) {
+      res[slot.key] = slot.fn
+    }
+  }
+  return res
+}
diff --git a/src/core/instance/render-helpers/resolve-slots.js b/src/core/instance/render-helpers/resolve-slots.js
index 57c34970942..b4f2ef0224f 100644
--- a/src/core/instance/render-helpers/resolve-slots.js
+++ b/src/core/instance/render-helpers/resolve-slots.js
@@ -48,20 +48,3 @@ export function resolveSlots (
 function isWhitespace (node: VNode): boolean {
   return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
-
-export function resolveScopedSlots (
-  fns: ScopedSlotsData, // see flow/vnode
-  hasDynamicKeys?: boolean,
-  res?: Object
-): { [key: string]: Function, $stable: boolean } {
-  res = res || { $stable: !hasDynamicKeys }
-  for (let i = 0; i < fns.length; i++) {
-    const slot = fns[i]
-    if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res)
-    } else if (slot) {
-      res[slot.key] = slot.fn
-    }
-  }
-  return res
-}

From 4d4d22a3f6017c46d08b67afe46af43027b06629 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 12:29:00 -0500
Subject: [PATCH 790/911] fix: bail out scoped slot optimization when there are
 nested scopes

fix #9438
---
 src/compiler/codegen/index.js                 | 30 +++++++++++++---
 src/compiler/parser/index.js                  | 13 +++++--
 .../component/component-scoped-slot.spec.js   | 35 +++++++++++++++++++
 3 files changed, 71 insertions(+), 7 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 04be3fb1476..1d081b943d1 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -4,6 +4,7 @@ import { genHandlers } from './events'
 import baseDirectives from '../directives/index'
 import { camelize, no, extend } from 'shared/util'
 import { baseWarn, pluckModuleFunction } from '../helpers'
+import { emptySlotScopeToken } from '../parser/index'
 
 type TransformFunction = (el: ASTElement, code: string) => string;
 type DataGenFunction = (el: ASTElement) => string;
@@ -268,7 +269,7 @@ export function genData (el: ASTElement, state: CodegenState): string {
   }
   // scoped slots
   if (el.scopedSlots) {
-    data += `${genScopedSlots(el.scopedSlots, state)},`
+    data += `${genScopedSlots(el, el.scopedSlots, state)},`
   }
   // component v-model
   if (el.model) {
@@ -357,18 +358,36 @@ function genInlineTemplate (el: ASTElement, state: CodegenState): ?string {
 }
 
 function genScopedSlots (
+  el: ASTElement,
   slots: { [key: string]: ASTElement },
   state: CodegenState
 ): string {
-  const hasDynamicKeys = Object.keys(slots).some(key => {
+  // by default scoped slots are considered "stable", this allows child
+  // components with only scoped slots to skip forced updates from parent.
+  // but in some cases we have to bail-out of this optimization
+  // for example if the slot contains dynamic names, has v-if or v-for on them...
+  let needsForceUpdate = Object.keys(slots).some(key => {
     const slot = slots[key]
     return slot.slotTargetDynamic || slot.if || slot.for
   })
+  // OR when it is inside another scoped slot (the reactivity is disconnected)
+  // #9438
+  if (!needsForceUpdate) {
+    let parent = el.parent
+    while (parent) {
+      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        needsForceUpdate = true
+        break
+      }
+      parent = parent.parent
+    }
+  }
+
   return `scopedSlots:_u([${
     Object.keys(slots).map(key => {
       return genScopedSlot(slots[key], state)
     }).join(',')
-  }]${hasDynamicKeys ? `,true` : ``})`
+  }]${needsForceUpdate ? `,true` : ``})`
 }
 
 function genScopedSlot (
@@ -382,7 +401,10 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genFor(el, state, genScopedSlot)
   }
-  const fn = `function(${String(el.slotScope)}){` +
+  const slotScope = el.slotScope === emptySlotScopeToken
+    ? ``
+    : String(el.slotScope)
+  const fn = `function(${slotScope}){` +
     `return ${el.tag === 'template'
       ? el.if && isLegacySyntax
         ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 2b726e5d2f1..0279f0ffdbf 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -44,6 +44,8 @@ const invalidAttributeRE = /[\s"'<>\/=]/
 
 const decodeHTMLCached = cached(he.decode)
 
+export const emptySlotScopeToken = `_empty_`
+
 // configurable state
 export let warn: any
 let delimiters
@@ -659,7 +661,7 @@ function processSlotContent (el) {
         const { name, dynamic } = getSlotName(slotBinding)
         el.slotTarget = name
         el.slotTargetDynamic = dynamic
-        el.slotScope = slotBinding.value || `_` // force it into a scoped slot for perf
+        el.slotScope = slotBinding.value || emptySlotScopeToken // force it into a scoped slot for perf
       }
     } else {
       // v-slot on component, denotes default slot
@@ -692,8 +694,13 @@ function processSlotContent (el) {
         const slotContainer = slots[name] = createASTElement('template', [], el)
         slotContainer.slotTarget = name
         slotContainer.slotTargetDynamic = dynamic
-        slotContainer.children = el.children.filter(c => !(c: any).slotScope)
-        slotContainer.slotScope = slotBinding.value || `_`
+        slotContainer.children = el.children.filter((c: any) => {
+          if (!c.slotScope) {
+            c.parent = slotContainer
+            return true
+          }
+        })
+        slotContainer.slotScope = slotBinding.value || emptySlotScopeToken
         // remove children as they are returned from scopedSlots now
         el.children = []
         // mark el non-plain so data gets generated
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index b520cf1e6b0..cb619a482e4 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -992,4 +992,39 @@ describe('Component scoped slot', () => {
       expect(Child.updated).not.toHaveBeenCalled()
     }).then(done)
   })
+
+  // regression #9438
+  it('nested scoped slots update', done => {
+    const Wrapper = {
+      template: `<div><slot/></div>`
+    }
+
+    const Inner = {
+      props: ['foo'],
+      template: `<div>{{ foo }}</div>`
+    }
+
+    const Outer = {
+      data: () => ({ foo: 1 }),
+      template: `<div><slot :foo="foo" /></div>`
+    }
+
+    const vm = new Vue({
+      components: { Outer, Wrapper, Inner },
+      template: `
+        <outer ref="outer" v-slot="props">
+          <wrapper v-slot>
+            <inner :foo="props.foo"/>
+          </wrapper>
+        </outer>
+      `
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe(`1`)
+
+    vm.$refs.outer.foo++
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe(`2`)
+    }).then(done)
+  })
 })

From 96a09aad99bdecbcc0e5c420077bf41893d4a745 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 13:58:09 -0500
Subject: [PATCH 791/911] fix(compiler): fix v-bind dynamic arguments on slot
 outlets

fix #9444
---
 src/compiler/codegen/index.js                 |  9 ++++++-
 .../component/component-scoped-slot.spec.js   | 25 +++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 1d081b943d1..0c218869c25 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -501,7 +501,14 @@ function genSlot (el: ASTElement, state: CodegenState): string {
   const slotName = el.slotName || '"default"'
   const children = genChildren(el, state)
   let res = `_t(${slotName}${children ? `,${children}` : ''}`
-  const attrs = el.attrs && `{${el.attrs.map(a => `${camelize(a.name)}:${a.value}`).join(',')}}`
+  const attrs = el.attrs || el.dynamicAttrs
+    ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(attr => ({
+        // slot props are camelized
+        name: camelize(attr.name),
+        value: attr.value,
+        dynamic: attr.dynamic
+      })))
+    : null
   const bind = el.attrsMap['v-bind']
   if ((attrs || bind) && !children) {
     res += `,null`
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index cb619a482e4..79f9a23c59a 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1027,4 +1027,29 @@ describe('Component scoped slot', () => {
       expect(vm.$el.textContent).toBe(`2`)
     }).then(done)
   })
+
+  it('dynamic v-bind arguments on <slot>', done => {
+    const Foo = {
+      data() {
+        return {
+          key: 'msg'
+        }
+      },
+      template: `<div><slot :[key]="'hello'"/></div>`
+    }
+
+    const vm = new Vue({
+      components: { Foo },
+      template: `
+        <foo ref="foo" v-slot="props">{{ props }}</foo>
+      `
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe(JSON.stringify({ msg: 'hello' }, null, 2))
+
+    vm.$refs.foo.key = 'changed'
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe(JSON.stringify({ changed: 'hello' }, null, 2))
+    }).then(done)
+  })
 })

From 7bc88f30c3eadded07dd5b460d1e7cb9342d017c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 15:04:24 -0500
Subject: [PATCH 792/911] fix: skip microtask fix in Firefix <= 53

fix #9446
---
 src/core/util/env.js                        | 1 +
 src/platforms/web/runtime/modules/events.js | 9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index e89a2fc90d9..eff1d21dc75 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -15,6 +15,7 @@ export const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform ===
 export const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios')
 export const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge
 export const isPhantomJS = UA && /phantomjs/.test(UA)
+export const isFF = UA && UA.match(/firefox\/(\d+)/)
 
 // Firefox has a "watch" function on Object.prototype...
 export const nativeWatch = ({}).watch
diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index e7a969b64df..2721a1fd5d5 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -2,7 +2,7 @@
 
 import { isDef, isUndef } from 'shared/util'
 import { updateListeners } from 'core/vdom/helpers/index'
-import { isIE, supportsPassive, isUsingMicroTask } from 'core/util/index'
+import { isIE, isFF, supportsPassive, isUsingMicroTask } from 'core/util/index'
 import { RANGE_TOKEN, CHECKBOX_RADIO_TOKEN } from 'web/compiler/directives/model'
 import { currentFlushTimestamp } from 'core/observer/scheduler'
 
@@ -39,6 +39,11 @@ function createOnceHandler (event, handler, capture) {
   }
 }
 
+// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+// implementation and does not fire microtasks in between event propagation, so
+// safe to exclude.
+const useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53)
+
 function add (
   name: string,
   handler: Function,
@@ -51,7 +56,7 @@ function add (
   // the solution is simple: we save the timestamp when a handler is attached,
   // and the handler would only fire if the event passed to it was fired
   // AFTER it was attached.
-  if (isUsingMicroTask) {
+  if (useMicrotaskFix) {
     const attachedTimestamp = currentFlushTimestamp
     const original = handler
     handler = original._wrapper = function (e) {

From d5ade28652b07303ac6b713813792752ae5e4e04 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 15:22:21 -0500
Subject: [PATCH 793/911] revert: feat: expose all scoped slots on this.$slots

This reverts commit 0129b0eb12a1f98a722f100892bfc5e60b0f51ce.
---
 .../vdom/helpers/normalize-scoped-slots.js    | 14 +++----------
 .../component/component-scoped-slot.spec.js   | 20 +------------------
 2 files changed, 4 insertions(+), 30 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index b575ff605ec..95b90215da2 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -1,6 +1,5 @@
 /* @flow */
 
-import { hasOwn } from 'shared/util'
 import { def } from 'core/util/lang'
 import { normalizeChildren } from 'core/vdom/helpers/normalize-children'
 
@@ -17,7 +16,7 @@ export function normalizeScopedSlots (
     res = {}
     for (const key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key])
+        res[key] = normalizeScopedSlot(slots[key])
       }
     }
   }
@@ -32,20 +31,13 @@ export function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(normalSlots, key, fn) {
-  const normalized = (scope = {}) => {
+function normalizeScopedSlot(fn: Function): Function {
+  return scope => {
     const res = fn(scope)
     return res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
   }
-  // proxy scoped slots on normal $slots
-  if (!hasOwn(normalSlots, key)) {
-    Object.defineProperty(normalSlots, key, {
-      get: normalized
-    })
-  }
-  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 79f9a23c59a..12206835a01 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -456,7 +456,7 @@ describe('Component scoped slot', () => {
   })
 
   // new in 2.6, unifying all slots as functions
-  it('non-scoped slots should also be available on this.$scopedSlots', () => {
+  it('non-scoped slots should also be available on $scopedSlots', () => {
     const vm = new Vue({
       template: `<foo>before <div slot="bar" slot-scope="scope">{{ scope.msg }}</div> after</foo>`,
       components: {
@@ -473,24 +473,6 @@ describe('Component scoped slot', () => {
     expect(vm.$el.innerHTML).toBe(`before  after<div>hi</div>`)
   })
 
-  // #9421 the other side of unification is also needed
-  // for library authors
-  it('scoped slots should also be available on this.$slots', () => {
-    const Child = {
-      render: function (h) {
-        return h(
-          'div',
-          this.$slots.content
-        )
-      }
-    }
-    const vm = new Vue({
-      template: `<child><template #content>foo</template></child>`,
-      components: { Child }
-    }).$mount()
-    expect(vm.$el.innerHTML).toBe(`foo`)
-  })
-
   // #4779
   it('should support dynamic slot target', done => {
     const Child = {

From dae7e4182fbbb41e599953cc22e5d54dbb164070 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 15:57:06 -0500
Subject: [PATCH 794/911] fix: skip microtask fix if event is fired from
 different document

fix #9448
---
 src/platforms/web/runtime/modules/events.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index 2721a1fd5d5..d030f55d3bc 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -60,7 +60,12 @@ function add (
     const attachedTimestamp = currentFlushTimestamp
     const original = handler
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= attachedTimestamp) {
+      if (
+        e.timeStamp >= attachedTimestamp ||
+        // #9448 bail if event is fired in another document in a multi-page
+        // electron/nw.js app
+        e.target.ownerDocument !== document
+      ) {
         return original.apply(this, arguments)
       }
     }

From 6441eac4c69de438b630a5ffbb8591dbdc6356f8 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 16:52:03 -0500
Subject: [PATCH 795/911] build: build 2.6.3

---
 dist/vue.common.dev.js                      | 4166 +++++++++---------
 dist/vue.common.prod.js                     |    4 +-
 dist/vue.esm.browser.js                     | 4180 +++++++++---------
 dist/vue.esm.browser.min.js                 |    4 +-
 dist/vue.esm.js                             | 4184 ++++++++++---------
 dist/vue.js                                 | 4166 +++++++++---------
 dist/vue.min.js                             |    4 +-
 dist/vue.runtime.common.dev.js              | 4109 +++++++++---------
 dist/vue.runtime.common.prod.js             |    4 +-
 dist/vue.runtime.esm.js                     | 4145 +++++++++---------
 dist/vue.runtime.js                         | 4109 +++++++++---------
 dist/vue.runtime.min.js                     |    4 +-
 packages/vue-server-renderer/basic.js       | 1516 +++----
 packages/vue-server-renderer/build.dev.js   | 1516 +++----
 packages/vue-server-renderer/build.prod.js  |    2 +-
 packages/vue-server-renderer/package.json   |    2 +-
 packages/vue-template-compiler/browser.js   |   52 +-
 packages/vue-template-compiler/build.js     |   52 +-
 packages/vue-template-compiler/package.json |    2 +-
 19 files changed, 16295 insertions(+), 15926 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 619ed40d9fe..36780a616ed 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -534,6 +534,7 @@ var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 var isPhantomJS = UA && /phantomjs/.test(UA);
+var isFF = UA && UA.match(/firefox\/(\d+)/);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -2404,2437 +2405,2439 @@ function normalizeArrayChildren (children, nestedIndex) {
 
 /*  */
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
   }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
 }
 
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      } else {
-        contexts.length = 0;
-      }
-    });
-
-    var reject = once(function (reason) {
-      warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
       }
     });
+    toggleObserving(true);
+  }
+}
 
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (isPromise(res)) {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isPromise(res.component)) {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
         }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
-            }
-          }, res.timeout);
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
         }
       }
     }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+    return result
   }
 }
 
 /*  */
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
 
-/*  */
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  var slots = {};
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
       }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
     }
   }
+  return slots
 }
 
-/*  */
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
 
 /*  */
 
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
   }
+  def(res, '_normalized', true);
+  def(res, '$stable', slots ? !!slots.$stable : true);
+  return res
 }
 
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
 }
 
-function remove$1 (event, fn) {
-  target.$off(event, fn);
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
 }
 
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
+/*  */
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        vm.$off(event[i$1], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
-      }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
     }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
       }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      var info = "event handler for \"" + event + "\"";
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
       }
     }
-    return vm
-  };
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
 }
 
 /*  */
 
-
-
 /**
- * Runtime helper for resolving raw children VNodes into a slot object.
+ * Runtime helper for rendering <slot>
  */
-function resolveSlots (
-  children,
-  context
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
 ) {
-  if (!children || !children.length) {
-    return {}
-  }
-  var slots = {};
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
       }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
+      props = extend(extend({}, bindObject), props);
     }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
   }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  hasDynamicKeys,
-  res
-) {
-  res = res || { $stable: !hasDynamicKeys };
-  for (var i = 0; i < fns.length; i++) {
-    var slot = fns[i];
-    if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else if (slot) {
-      res[slot.key] = slot.fn;
-    }
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
-  return res
 }
 
 /*  */
 
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
 }
 
-function initLifecycle (vm) {
-  var options = vm.$options;
+/*  */
 
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
   }
+}
 
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
 }
 
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
     } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
 
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
+      for (var key in value) loop( key );
     }
-  };
+  }
+  return data
 }
 
-function mountComponent (
-  vm,
-  el,
-  hydrating
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
 ) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
   }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
 
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
 
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
   } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
+    markStaticNode(tree, key, isOnce);
   }
+}
 
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
   }
-  return vm
+  return data
 }
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
+/*  */
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
 ) {
-  {
-    isUpdatingChildComponent = true;
+  res = res || { $stable: !hasDynamicKeys };
+  for (var i = 0; i < fns.length; i++) {
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else if (slot) {
+      res[slot.key] = slot.fn;
+    }
   }
+  return res
+}
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren.
+/*  */
 
-  // check if there are dynamic scopedSlots (hand-written or compiled but with
-  // dynamic slot names). Static scoped slots compiled from template has the
-  // "$stable" marker.
-  var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-  );
-  // Any static slot children from the parent may have changed during parent's
-  // update. Dynamic scoped slots may also have changed. In such cases, a forced
-  // update is necessary to ensure correctness.
-  var needsForceUpdate = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    hasDynamicScopedSlot
-  );
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
+}
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
+/*  */
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
   }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
 
-  // resolve slots + force update if has children
-  if (needsForceUpdate) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
 
-  {
-    isUpdatingChildComponent = false;
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
   }
-}
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
   }
-  return false
 }
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
-  } else if (vm._directInactive) {
-    return
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
   }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
-    callHook(vm, 'activated');
+    return res
   }
 }
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
   }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  var info = hook + " hook";
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
   }
-  popTarget();
 }
 
 /*  */
 
-var MAX_UPDATE_COUNT = 100;
+/*  */
 
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
+/*  */
 
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
+/*  */
 
-// Async edge case #6566 requires saving the timestamp when event listeners are
-// attached. However, calling performance.now() has a perf overhead especially
-// if the page has thousands of event listeners. Instead, we take a timestamp
-// every time the scheduler flushes and use that for all event listeners
-// attached during that flush.
-var currentFlushTimestamp = 0;
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
 
-// Async edge case fix requires storing an event listener's attach timestamp.
-var getNow = Date.now;
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
 
-// Determine what event timestamp the browser is using. Annoyingly, the
-// timestamp can either be hi-res ( relative to poge load) or low-res
-// (relative to UNIX epoch), so in order to compare time we have to use the
-// same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
-}
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
 
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  currentFlushTimestamp = getNow();
-  flushing = true;
-  var watcher, id;
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
 
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
+var hooksToMerge = Object.keys(componentVNodeHooks);
 
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
     }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
     }
   }
 
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
+  data = data || {};
 
-  resetSchedulerState();
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
 
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
   }
-}
 
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
     }
   }
-}
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
+
+  return vnode
 }
 
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
+  return new vnode.componentOptions.Ctor(options)
 }
 
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
     }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
+  }
+}
 
-      if (!config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
     }
+  } else {
+    on[event] = callback;
   }
 }
 
 /*  */
 
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
 
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
 
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
   }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
   }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
   } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
+    return createEmptyVNode()
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
+}
 
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
   }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
     }
   }
-};
+}
 
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
   }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
 
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
   }
-};
+}
 
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
+var currentRenderingInstance = null;
 
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
 
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
 
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      // There's no need to maintain a stack becaues all render fns are called
+      // separately from one another. Nested component's render fns are called
+      // when parent component is patched.
+      currentRenderingInstance = vm;
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    } finally {
+      currentRenderingInstance = null;
     }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
     }
-    this.active = false;
-  }
-};
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
 
 /*  */
 
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
 
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
 }
 
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
+function resolveAsyncComponent (
+  factory,
+  baseCtor
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
   }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
   }
-}
 
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
   }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
+
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners)) {
+    // already pending
+    factory.owners.push(owner);
+  } else {
+    var owners = factory.owners = [owner];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = owners.length; i < l; i++) {
+        (owners[i]).$forceUpdate();
       }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
 
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
+      if (renderCompleted) {
+        owners.length = 0;
+      }
+    };
 
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        owners.length = 0;
       }
-    }
-    if (props && hasOwn(props, key)) {
+    });
+
+    var reject = once(function (reason) {
       warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
       );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
+      }
     }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
 
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
   }
 }
 
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
+/*  */
 
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
 
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
+/*  */
 
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
       }
     }
   }
 }
 
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
+/*  */
 
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
   }
 }
 
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
+function remove$1 (event, fn) {
+  target.$off(event, fn);
 }
 
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
     }
   }
 }
 
-function createWatcher (
+function updateComponentListeners (
   vm,
-  expOrFn,
-  handler,
-  options
+  listeners,
+  oldListeners
 ) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
 }
 
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    var vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
+  Vue.prototype.$emit = function (event) {
     var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+    {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
       }
     }
-    return function unwatchFn () {
-      watcher.teardown();
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
     }
+    return vm
   };
 }
 
 /*  */
 
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
+var activeInstance = null;
+var isUpdatingChildComponent = false;
 
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      }
-    });
-    toggleObserving(true);
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
   }
 }
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject)
-      : Object.keys(inject);
+function initLifecycle (vm) {
+  var options = vm.$options;
 
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      // #6574 in case the inject object is observed...
-      if (key === '__ob__') { continue }
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
     }
-    return result
+    parent.$children.push(vm);
   }
-}
-
-/*  */
 
-function normalizeScopedSlots (
-  slots,
-  normalSlots
-) {
-  var res;
-  if (!slots) {
-    res = {};
-  } else if (slots._normalized) {
-    return slots
-  } else {
-    res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-      }
-    }
-  }
-  // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
-    }
-  }
-  res._normalized = true;
-  res.$stable = slots ? slots.$stable : true;
-  return res
-}
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
 
-function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    if ( scope === void 0 ) scope = {};
+  vm.$children = [];
+  vm.$refs = {};
 
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
-      ? [res] // single vnode
-      : normalizeChildren(res)
-  };
-  // proxy scoped slots on normal $slots
-  if (!hasOwn(normalSlots, key)) {
-    Object.defineProperty(normalSlots, key, {
-      get: normalized
-    });
-  }
-  return normalized
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
 }
 
-function proxyNormalSlot(slots, key) {
-  return function () { return slots[key]; }
-}
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
 
-/*  */
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
     }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
     }
-  } else if (isObject(val)) {
-    if (hasSymbol && val[Symbol.iterator]) {
-      ret = [];
-      var iterator = val[Symbol.iterator]();
-      var result = iterator.next();
-      while (!result.done) {
-        ret.push(render(result.value, ret.length));
-        result = iterator.next();
-      }
-    } else {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
-      }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
     }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
 }
 
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
+function mountComponent (
+  vm,
+  el,
+  hydrating
 ) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (!isObject(bindObject)) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
         warn(
-          'slot v-bind without argument expects an Object',
-          this
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
         );
       }
-      props = extend(extend({}, bindObject), props);
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
   }
+  callHook(vm, 'beforeMount');
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
+  var updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
 
-/*  */
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
 
-/*  */
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
   }
+  return vm
 }
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
 ) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
+  {
+    isUpdatingChildComponent = true;
   }
-}
-
-/*  */
 
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
 
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
 
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
 
-/*  */
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
   }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
+  vm.$options._renderChildren = renderChildren;
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
   }
-}
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  {
+    isUpdatingChildComponent = false;
+  }
 }
 
-/*  */
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
 
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
     }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
   }
-  return data
 }
 
-/*  */
-
-function bindDynamicKeys (baseObj, values) {
-  for (var i = 0; i < values.length; i += 2) {
-    var key = values[i];
-    if (typeof key === 'string' && key) {
-      baseObj[values[i]] = values[i + 1];
-    } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
-      warn(
-        ("Invalid value for dynamic directive argument (expected string or null): " + key),
-        this
-      );
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
     }
   }
-  return baseObj
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
 }
 
-// helper to dynamically append modifier runtime markers to event names.
-// ensure only append when value is already string, otherwise it will be cast
-// to string and cause the type check to miss.
-function prependModifier (value, symbol) {
-  return typeof value === 'string' ? symbol + value : value
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  var info = hook + " hook";
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
 }
 
 /*  */
 
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-  target._d = bindDynamicKeys;
-  target._p = prependModifier;
-}
+var MAX_UPDATE_COUNT = 100;
 
-/*  */
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
 
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
   }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
+  waiting = flushing = false;
+}
 
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
 
-  Object.defineProperty(this, 'scopedSlots', ({
-    enumerable: true,
-    get: function get () {
-      return normalizeScopedSlots(data.scopedSlots, this.slots())
-    }
-  }));
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
 
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
-  }
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res (relative to page load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
 
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
       }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+    }
   }
-}
 
-installRenderHelpers(FunctionalRenderContext.prototype);
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
+  resetSchedulerState();
 
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
 
-  var vnode = options.render.call(null, renderContext._c, renderContext);
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
     }
-    return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
   }
-  return clone
 }
 
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
   }
 }
 
 /*  */
 
-/*  */
 
-/*  */
 
-/*  */
+var uid$2 = 0;
 
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$2; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
       );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
     }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
     }
+    popTarget();
+    this.cleanupDeps();
   }
+  return value
 };
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
     }
-    return
   }
+};
 
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
 
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
   }
+};
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
     }
   }
+};
 
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
 
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
   }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
+};
 
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
     }
-  } else {
-    on[event] = callback;
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
+    }
+    this.active = false;
   }
-}
+};
 
 /*  */
 
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
 
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
   }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
   }
-  return _createElement(context, tag, data, children, normalizationType)
 }
 
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
     warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
     );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
   }
-  // warn against non-primitive key
-  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
     {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
       warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
       );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
     }
   }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
   }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
       );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
       );
     }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
   } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
   }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
       }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
     }
   }
 }
 
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
   }
 }
 
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
 
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
 
-  /* istanbul ignore else */
-  {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
   }
+  return vm.$watch(expOrFn, handler, options)
 }
 
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
 
-  Vue.prototype._render = function () {
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
     var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = normalizeScopedSlots(
-        _parentVnode.data.scopedSlots,
-        vm.$slots
-      );
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
     }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
       }
     }
-    // if the returned array contains only a single node, allow it
-    if (Array.isArray(vnode) && vnode.length === 1) {
-      vnode = vnode[0];
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
+    return function unwatchFn () {
+      watcher.teardown();
     }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
   };
 }
 
@@ -5328,7 +5331,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.2';
+Vue.version = '2.6.3';
 
 /*  */
 
@@ -7392,6 +7395,11 @@ function createOnceHandler$1 (event, handler, capture) {
   }
 }
 
+// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+// implementation and does not fire microtasks in between event propagation, so
+// safe to exclude.
+var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
+
 function add$1 (
   name,
   handler,
@@ -7404,11 +7412,16 @@ function add$1 (
   // the solution is simple: we save the timestamp when a handler is attached,
   // and the handler would only fire if the event passed to it was fired
   // AFTER it was attached.
-  if (isUsingMicroTask) {
+  if (useMicrotaskFix) {
     var attachedTimestamp = currentFlushTimestamp;
     var original = handler;
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= attachedTimestamp) {
+      if (
+        e.timeStamp >= attachedTimestamp ||
+        // #9448 bail if event is fired in another document in a multi-page
+        // electron/nw.js app
+        e.target.ownerDocument !== document
+      ) {
         return original.apply(this, arguments)
       }
     };
@@ -9420,6 +9433,8 @@ var invalidAttributeRE = /[\s"'<>\/=]/;
 
 var decodeHTMLCached = cached(he.decode);
 
+var emptySlotScopeToken = "_empty_";
+
 // configurable state
 var warn$2;
 var delimiters;
@@ -10032,7 +10047,7 @@ function processSlotContent (el) {
         var dynamic = ref.dynamic;
         el.slotTarget = name;
         el.slotTargetDynamic = dynamic;
-        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+        el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
       }
     } else {
       // v-slot on component, denotes default slot
@@ -10067,8 +10082,13 @@ function processSlotContent (el) {
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
         slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
-        slotContainer.slotScope = slotBinding$1.value || "_";
+        slotContainer.children = el.children.filter(function (c) {
+          if (!c.slotScope) {
+            c.parent = slotContainer;
+            return true
+          }
+        });
+        slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
         // remove children as they are returned from scopedSlots now
         el.children = [];
         // mark el non-plain so data gets generated
@@ -10997,7 +11017,7 @@ function genData$2 (el, state) {
   }
   // scoped slots
   if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+    data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
   }
   // component v-model
   if (el.model) {
@@ -11068,16 +11088,34 @@ function genInlineTemplate (el, state) {
 }
 
 function genScopedSlots (
+  el,
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+  // by default scoped slots are considered "stable", this allows child
+  // components with only scoped slots to skip forced updates from parent.
+  // but in some cases we have to bail-out of this optimization
+  // for example if the slot contains dynamic names, has v-if or v-for on them...
+  var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return slot.slotTargetDynamic || slot.if || slot.for
   });
+  // OR when it is inside another scoped slot (the reactivity is disconnected)
+  // #9438
+  if (!needsForceUpdate) {
+    var parent = el.parent;
+    while (parent) {
+      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        needsForceUpdate = true;
+        break
+      }
+      parent = parent.parent;
+    }
+  }
+
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
       return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
@@ -11091,7 +11129,10 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genFor(el, state, genScopedSlot)
   }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
+  var slotScope = el.slotScope === emptySlotScopeToken
+    ? ""
+    : String(el.slotScope);
+  var fn = "function(" + slotScope + "){" +
     "return " + (el.tag === 'template'
       ? el.if && isLegacySyntax
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
@@ -11184,7 +11225,14 @@ function genSlot (el, state) {
   var slotName = el.slotName || '"default"';
   var children = genChildren(el, state);
   var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var attrs = el.attrs || el.dynamicAttrs
+    ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
+        // slot props are camelized
+        name: camelize(attr.name),
+        value: attr.value,
+        dynamic: attr.dynamic
+      }); }))
+    : null;
   var bind$$1 = el.attrsMap['v-bind'];
   if ((attrs || bind$$1) && !children) {
     res += ",null";
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index 44e1c7f63c3..2c7c8c6b404 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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u=t.directives[o.name];u&&(a=!!u(e,o,t.warn)),a&&(c=!0,s+='{name:"'+o.name+'",rawName:"'+o.rawName+'"'+(o.value?",value:("+o.value+"),expression:"+JSON.stringify(o.value):"")+(o.arg?",arg:"+(o.isDynamicArg?o.arg:'"'+o.arg+'"'):"")+(o.modifiers?",modifiers:"+JSON.stringify(o.modifiers):"")+"},")}if(c)return s.slice(0,-1)+"]"}(e,t);r&&(n+=r+","),e.key&&(n+="key:"+e.key+","),e.ref&&(n+="ref:"+e.ref+","),e.refInFor&&(n+="refInFor:true,"),e.pre&&(n+="pre:true,"),e.component&&(n+='tag:"'+e.tag+'",');for(var i=0;i<t.dataGenFns.length;i++)n+=t.dataGenFns[i](e);if(e.attrs&&(n+="attrs:"+qa(e.attrs)+","),e.props&&(n+="domProps:"+qa(e.props)+","),e.events&&(n+=Na(e.events,!1)+","),e.nativeEvents&&(n+=Na(e.nativeEvents,!0)+","),e.slotTarget&&!e.slotScope&&(n+="slot:"+e.slotTarget+","),e.scopedSlots&&(n+=function(e,t,n){var r=Object.keys(t).some(function(e){var n=t[e];return n.slotTargetDynamic||n.if||n.for});if(!r)for(var 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"+("template"===e.tag?e.if&&n?"("+e.if+")?"+(Va(e,t)||"undefined")+":undefined":Va(e,t)||"undefined":Pa(e,t))+"}";return"{key:"+(e.slotTarget||'"default"')+",fn:"+r+"}"}function Va(e,t,n,r,i){var o=e.children;if(o.length){var a=o[0];if(1===o.length&&a.for&&"template"!==a.tag&&"slot"!==a.tag){var s=n?t.maybeComponent(a)?",1":",0":"";return""+(r||Pa)(a,t)+s}var c=n?function(e,t){for(var n=0,r=0;r<e.length;r++){var i=e[r];if(1===i.type){if(Ka(i)||i.ifConditions&&i.ifConditions.some(function(e){return Ka(e.block)})){n=2;break}(t(i)||i.ifConditions&&i.ifConditions.some(function(e){return t(e.block)}))&&(n=1)}}return n}(o,t.maybeComponent):0,u=i||Ja;return"["+o.map(function(e){return u(e,t)}).join(",")+"]"+(c?","+c:"")}}function Ka(e){return void 0!==e.for||"template"===e.tag||"slot"===e.tag}function Ja(e,t){return 1===e.type?Pa(e,t):3===e.type&&e.isComment?(r=e,"_e("+JSON.stringify(r.text)+")"):"_v("+(2===(n=e).type?n.expression:Wa(JSON.stringify(n.text)))+")";var n,r}function qa(e){for(var t="",n="",r=0;r<e.length;r++){var i=e[r],o=Wa(i.value);i.dynamic?n+=i.name+","+o+",":t+='"'+i.name+'":'+o+","}return t="{"+t.slice(0,-1)+"}",n?"_d("+t+",["+n.slice(0,-1)+"])":t}function Wa(e){return e.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Za(e,t){try{return new Function(e)}catch(n){return t.push({err:n,code:e}),S}}function Ga(e){var t=Object.create(null);return function(n,r,i){(r=k({},r)).warn;delete r.warn;var o=r.delimiters?String(r.delimiters)+n:n;if(t[o])return t[o];var a=e(n,r),s={},c=[];return s.render=Za(a.render,c),s.staticRenderFns=a.staticRenderFns.map(function(e){return Za(e,c)}),t[o]=s}}var Xa,Ya,Qa=(Xa=function(e,t){var n=ca(e.trim(),t);!1!==t.optimize&&Ca(n,t);var r=Da(n,t);return{ast:n,render:r.render,staticRenderFns:r.staticRenderFns}},function(e){function t(t,n){var r=Object.create(e),i=[],o=[];if(n)for(var a in n.modules&&(r.modules=(e.modules||[]).concat(n.modules)),n.directives&&(r.directives=k(Object.create(e.directives||null),n.directives)),n)"modules"!==a&&"directives"!==a&&(r[a]=n[a]);r.warn=function(e,t,n){(n?o:i).push(e)};var s=Xa(t.trim(),r);return s.errors=i,s.tips=o,s}return{compile:t,compileToFunctions:Ga(t)}})($a),es=(Qa.compile,Qa.compileToFunctions);function ts(e){return(Ya=Ya||document.createElement("div")).innerHTML=e?'<a href="\n"/>':'<div a="\n"/>',Ya.innerHTML.indexOf("&#10;")>0}var ns=!!U&&ts(!1),rs=!!U&&ts(!0),is=g(function(e){var t=Gn(e);return t&&t.innerHTML}),os=bn.prototype.$mount;bn.prototype.$mount=function(e,t){if((e=e&&Gn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=is(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var i=es(r,{outputSourceRange:!1,shouldDecodeNewlines:ns,shouldDecodeNewlinesForHref:rs,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return os.call(this,e,t)},bn.compile=es,module.exports=bn;
\ No newline at end of file
diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 83e124d4722..57fbf89cc63 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -532,6 +532,7 @@ const isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'androi
 const isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 const isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 const isPhantomJS = UA && /phantomjs/.test(UA);
+const isFF = UA && UA.match(/firefox\/(\d+)/);
 
 // Firefox has a "watch" function on Object.prototype...
 const nativeWatch = ({}).watch;
@@ -2432,2448 +2433,2452 @@ function normalizeArrayChildren (children, nestedIndex) {
 
 /*  */
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
+function initProvide (vm) {
+  const provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
   }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  const node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data, context, children, tag };
-  return node
 }
 
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    const contexts = factory.contexts = [context];
-    let sync = true;
-
-    const forceRender = (renderCompleted) => {
-      for (let i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    const resolve = once((res) => {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      } else {
-        contexts.length = 0;
-      }
-    });
-
-    const reject = once(reason => {
-      warn(
-        `Failed to resolve async component: ${String(factory)}` +
-        (reason ? `\nReason: ${reason}` : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
+function initInjections (vm) {
+  const result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(key => {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], () => {
+          warn(
+            `Avoid mutating an injected value directly since the changes will be ` +
+            `overwritten whenever the provided component re-renders. ` +
+            `injection being mutated: "${key}"`,
+            vm
+          );
+        });
       }
     });
+    toggleObserving(true);
+  }
+}
 
-    const res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (isPromise(res)) {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isPromise(res.component)) {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    const result = Object.create(null);
+    const keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(() => {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
+    for (let i = 0; i < keys.length; i++) {
+      const key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') continue
+      const provideKey = inject[key].from;
+      let source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
         }
-
-        if (isDef(res.timeout)) {
-          setTimeout(() => {
-            if (isUndef(factory.resolved)) {
-              reject(
-                `timeout (${res.timeout}ms)`
-              );
-            }
-          }, res.timeout);
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          const provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(`Injection "${key}" not found`, vm);
         }
       }
     }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+    return result
   }
 }
 
 /*  */
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
 
-/*  */
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (let i = 0; i < children.length; i++) {
-      const c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  const slots = {};
+  for (let i = 0, l = children.length; i < l; i++) {
+    const child = children[i];
+    const data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      const name = data.slot;
+      const slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
       }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (const name in slots) {
+    if (slots[name].every(isWhitespace)) {
+      delete slots[name];
     }
   }
+  return slots
 }
 
-/*  */
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
 
 /*  */
 
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  const listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  let res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (const key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (const key in normalSlots) {
+    if (!(key in res)) {
+      res[key] = proxyNormalSlot(normalSlots, key);
+    }
   }
+  def(res, '_normalized', true);
+  def(res, '$stable', slots ? !!slots.$stable : true);
+  return res
 }
 
-let target;
-
-function add (event, fn) {
-  target.$on(event, fn);
+function normalizeScopedSlot(fn) {
+  return scope => {
+    const res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
 }
 
-function remove$1 (event, fn) {
-  target.$off(event, fn);
+function proxyNormalSlot(slots, key) {
+  return () => slots[key]
 }
 
-function createOnceHandler (event, fn) {
-  const _target = target;
-  return function onceHandler () {
-    const res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
+/*  */
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  const hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    const vm = this;
-    if (Array.isArray(event)) {
-      for (let i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    const vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    const vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (let i = 0, l = event.length; i < l; i++) {
-        vm.$off(event[i], fn);
-      }
-      return vm
-    }
-    // specific event
-    const cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
+  let ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-    // specific handler
-    let cb;
-    let i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
-      }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
     }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    const vm = this;
-    {
-      const lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          `Event "${lowerCaseEvent}" is emitted in component ` +
-          `${formatComponentName(vm)} but the handler is registered for "${event}". ` +
-          `Note that HTML attributes are case-insensitive and you cannot use ` +
-          `v-on to listen to camelCase events when using in-DOM templates. ` +
-          `You should probably use "${hyphenate(event)}" instead of "${event}".`
-        );
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      const iterator = val[Symbol.iterator]();
+      let result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
       }
-    }
-    let cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      const args = toArray(arguments, 1);
-      const info = `event handler for "${event}"`;
-      for (let i = 0, l = cbs.length; i < l; i++) {
-        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
       }
     }
-    return vm
-  };
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
 }
 
 /*  */
 
-
-
 /**
- * Runtime helper for resolving raw children VNodes into a slot object.
+ * Runtime helper for rendering <slot>
  */
-function resolveSlots (
-  children,
-  context
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
 ) {
-  if (!children || !children.length) {
-    return {}
-  }
-  const slots = {};
-  for (let i = 0, l = children.length; i < l; i++) {
-    const child = children[i];
-    const data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      const name = data.slot;
-      const slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
+  const scopedSlotFn = this.$scopedSlots[name];
+  let nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
       }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (const name in slots) {
-    if (slots[name].every(isWhitespace)) {
-      delete slots[name];
+      props = extend(extend({}, bindObject), props);
     }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
   }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  hasDynamicKeys,
-  res
-) {
-  res = res || { $stable: !hasDynamicKeys };
-  for (let i = 0; i < fns.length; i++) {
-    const slot = fns[i];
-    if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else if (slot) {
-      res[slot.key] = slot.fn;
-    }
+  const target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
-  return res
 }
 
 /*  */
 
-let activeInstance = null;
-let isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  const prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return () => {
-    activeInstance = prevActiveInstance;
-  }
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
 }
 
-function initLifecycle (vm) {
-  const options = vm.$options;
+/*  */
 
-  // locate first non-abstract parent
-  let parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
   }
+}
 
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  const mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
 }
 
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    const vm = this;
-    const prevEl = vm.$el;
-    const prevVnode = vm._vnode;
-    const restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
     } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      let hash;
+      for (const key in value) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          const type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        const camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
 
-  Vue.prototype.$forceUpdate = function () {
-    const vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
+          if (isSync) {
+            const on = data.on || (data.on = {});
+            on[`update:${camelizedKey}`] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      }
     }
-  };
+  }
+  return data
+}
 
-  Vue.prototype.$destroy = function () {
-    const vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    const parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    let i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
-    }
-  };
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  const cached = this._staticTrees || (this._staticTrees = []);
+  let tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, `__static__${index}`, false);
+  return tree
 }
 
-function mountComponent (
-  vm,
-  el,
-  hydrating
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
 ) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
+  markStatic(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (let i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], `${key}_${i}`, isOnce);
       }
     }
+  } else {
+    markStaticNode(tree, key, isOnce);
   }
-  callHook(vm, 'beforeMount');
+}
 
-  let updateComponent;
-  /* istanbul ignore if */
-  if (config.performance && mark) {
-    updateComponent = () => {
-      const name = vm._name;
-      const id = vm._uid;
-      const startTag = `vue-perf-start:${id}`;
-      const endTag = `vue-perf-end:${id}`;
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
 
-      mark(startTag);
-      const vnode = vm._render();
-      mark(endTag);
-      measure(`vue ${name} render`, startTag, endTag);
+/*  */
 
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(`vue ${name} patch`, startTag, endTag);
-    };
-  } else {
-    updateComponent = () => {
-      vm._update(vm._render(), hydrating);
-    };
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      const on = data.on = data.on ? extend({}, data.on) : {};
+      for (const key in value) {
+        const existing = on[key];
+        const ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
   }
+  return data
+}
 
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
-      }
+/*  */
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
+) {
+  res = res || { $stable: !hasDynamicKeys };
+  for (let i = 0; i < fns.length; i++) {
+    const slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else if (slot) {
+      res[slot.key] = slot.fn;
     }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
+  }
+  return res
+}
 
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
+/*  */
+
+function bindDynamicKeys (baseObj, values) {
+  for (let i = 0; i < values.length; i += 2) {
+    const key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        `Invalid value for dynamic directive argument (expected string or null): ${key}`,
+        this
+      );
+    }
   }
-  return vm
+  return baseObj
 }
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
 ) {
-  {
-    isUpdatingChildComponent = true;
+  const options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  let contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
   }
+  const isCompiled = isTrue(options._compiled);
+  const needNormalization = !isCompiled;
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren.
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = () => resolveSlots(children, parent);
 
-  // check if there are dynamic scopedSlots (hand-written or compiled but with
-  // dynamic slot names). Static scoped slots compiled from template has the
-  // "$stable" marker.
-  const hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-  );
-  // Any static slot children from the parent may have changed during parent's
-  // update. Dynamic scoped slots may also have changed. In such cases, a forced
-  // update is necessary to ensure correctness.
-  const needsForceUpdate = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    hasDynamicScopedSlot
-  );
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
+  }
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
+  if (options._scopeId) {
+    this._c = (a, b, c, d) => {
+      const vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
   }
-  vm.$options._renderChildren = renderChildren;
+}
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+installRenderHelpers(FunctionalRenderContext.prototype);
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    const props = vm._props;
-    const propKeys = vm.$options._propKeys || [];
-    for (let i = 0; i < propKeys.length; i++) {
-      const key = propKeys[i];
-      const propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  const options = Ctor.options;
+  const props = {};
+  const propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (const key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
+  } else {
+    if (isDef(data.attrs)) mergeProps(props, data.attrs);
+    if (isDef(data.props)) mergeProps(props, data.props);
   }
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  const oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+  const renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
 
-  // resolve slots + force update if has children
-  if (needsForceUpdate) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
+  const vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    const vnodes = normalizeChildren(vnode) || [];
+    const res = new Array(vnodes.length);
+    for (let i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
   }
+}
 
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  const clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   {
-    isUpdatingChildComponent = false;
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
   }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
 }
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) return true
+function mergeProps (to, from) {
+  for (const key in from) {
+    to[camelize(key)] = from[key];
   }
-  return false
 }
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (let i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+const componentVNodeHooks = {
+  init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      const mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      const child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
-    callHook(vm, 'activated');
-  }
-}
+  },
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
+  prepatch (oldVnode, vnode) {
+    const options = vnode.componentOptions;
+    const child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert (vnode) {
+    const { context, componentInstance } = vnode;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
     }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (let i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
     }
-    callHook(vm, 'deactivated');
-  }
-}
+  },
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  const handlers = vm.$options[hook];
-  const info = `${hook} hook`;
-  if (handlers) {
-    for (let i = 0, j = handlers.length; i < j; i++) {
-      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+  destroy (vnode) {
+    const { componentInstance } = vnode;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
     }
   }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
+};
+
+const hooksToMerge = Object.keys(componentVNodeHooks);
+
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
   }
-  popTarget();
-}
 
-/*  */
+  const baseCtor = context.$options._base;
 
-const MAX_UPDATE_COUNT = 100;
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
 
-const queue = [];
-const activatedChildren = [];
-let has = {};
-let circular = {};
-let waiting = false;
-let flushing = false;
-let index = 0;
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(`Invalid Component definition: ${String(Ctor)}`, context);
+    }
+    return
+  }
 
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
+  // async component
+  let asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
   }
-  waiting = flushing = false;
-}
 
-// Async edge case #6566 requires saving the timestamp when event listeners are
-// attached. However, calling performance.now() has a perf overhead especially
-// if the page has thousands of event listeners. Instead, we take a timestamp
-// every time the scheduler flushes and use that for all event listeners
-// attached during that flush.
-let currentFlushTimestamp = 0;
+  data = data || {};
 
-// Async edge case fix requires storing an event listener's attach timestamp.
-let getNow = Date.now;
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
 
-// Determine what event timestamp the browser is using. Annoyingly, the
-// timestamp can either be hi-res ( relative to poge load) or low-res
-// (relative to UNIX epoch), so in order to compare time we have to use the
-// same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
-  getNow = () => performance.now();
-}
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
 
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  currentFlushTimestamp = getNow();
-  flushing = true;
-  let watcher, id;
+  // extract props
+  const propsData = extractPropsFromVNodeData(data, Ctor, tag);
 
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort((a, b) => a.id - b.id);
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
 
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? `in watcher with expression "${watcher.expression}"`
-              : `in a component render function.`
-          ),
-          watcher.vm
-        );
-        break
-      }
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  const listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    const slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
     }
   }
 
-  // keep copies of post queues before resetting state
-  const activatedQueue = activatedChildren.slice();
-  const updatedQueue = queue.slice();
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
-  resetSchedulerState();
+  // return a placeholder vnode
+  const name = Ctor.options.name || tag;
+  const vnode = new VNode(
+    `vue-component-${Ctor.cid}${name ? `-${name}` : ''}`,
+    data, undefined, undefined, undefined, context,
+    { Ctor, propsData, listeners, tag, children },
+    asyncFactory
+  );
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
+  return vnode
+}
 
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent, // activeInstance in lifecycle state
+) {
+  const options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent
+  };
+  // check inline-template render functions
+  const inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
+  return new vnode.componentOptions.Ctor(options)
 }
 
-function callUpdatedHooks (queue) {
-  let i = queue.length;
-  while (i--) {
-    const watcher = queue[i];
-    const vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
+function installComponentHooks (data) {
+  const hooks = data.hook || (data.hook = {});
+  for (let i = 0; i < hooksToMerge.length; i++) {
+    const key = hooksToMerge[i];
+    const existing = hooks[key];
+    const toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
     }
   }
 }
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (let i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
+function mergeHook$1 (f1, f2) {
+  const merged = (a, b) => {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
 }
 
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  const id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      let i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (!config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  const prop = (options.model && options.model.prop) || 'value';
+  const event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
+  const on = data.on || (data.on = {});
+  const existing = on[event];
+  const callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
     }
+  } else {
+    on[event] = callback;
   }
 }
 
 /*  */
 
+const SIMPLE_NORMALIZE = 1;
+const ALWAYS_NORMALIZE = 2;
 
-
-let uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-class Watcher {
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-  
-
-  constructor (
-    vm,
-    expOrFn,
-    cb,
-    options,
-    isRenderWatcher
-  ) {
-    this.vm = vm;
-    if (isRenderWatcher) {
-      vm._watcher = this;
-    }
-    vm._watchers.push(this);
-    // options
-    if (options) {
-      this.deep = !!options.deep;
-      this.user = !!options.user;
-      this.lazy = !!options.lazy;
-      this.sync = !!options.sync;
-      this.before = options.before;
-    } else {
-      this.deep = this.user = this.lazy = this.sync = false;
-    }
-    this.cb = cb;
-    this.id = ++uid$1; // uid for batching
-    this.active = true;
-    this.dirty = this.lazy; // for lazy watchers
-    this.deps = [];
-    this.newDeps = [];
-    this.depIds = new _Set();
-    this.newDepIds = new _Set();
-    this.expression = expOrFn.toString();
-    // parse expression for getter
-    if (typeof expOrFn === 'function') {
-      this.getter = expOrFn;
-    } else {
-      this.getter = parsePath(expOrFn);
-      if (!this.getter) {
-        this.getter = noop;
-        warn(
-          `Failed watching path: "${expOrFn}" ` +
-          'Watcher only accepts simple dot-delimited paths. ' +
-          'For full control, use a function instead.',
-          vm
-        );
-      }
-    }
-    this.value = this.lazy
-      ? undefined
-      : this.get();
-  }
-
-  /**
-   * Evaluate the getter, and re-collect dependencies.
-   */
-  get () {
-    pushTarget(this);
-    let value;
-    const vm = this.vm;
-    try {
-      value = this.getter.call(vm, vm);
-    } catch (e) {
-      if (this.user) {
-        handleError(e, vm, `getter for watcher "${this.expression}"`);
-      } else {
-        throw e
-      }
-    } finally {
-      // "touch" every property so they are all tracked as
-      // dependencies for deep watching
-      if (this.deep) {
-        traverse(value);
-      }
-      popTarget();
-      this.cleanupDeps();
-    }
-    return value
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
   }
-
-  /**
-   * Add a dependency to this directive.
-   */
-  addDep (dep) {
-    const id = dep.id;
-    if (!this.newDepIds.has(id)) {
-      this.newDepIds.add(id);
-      this.newDeps.push(dep);
-      if (!this.depIds.has(id)) {
-        dep.addSub(this);
-      }
-    }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
   }
+  return _createElement(context, tag, data, children, normalizationType)
+}
 
-  /**
-   * Clean up for dependency collection.
-   */
-  cleanupDeps () {
-    let i = this.deps.length;
-    while (i--) {
-      const dep = this.deps[i];
-      if (!this.newDepIds.has(dep.id)) {
-        dep.removeSub(this);
-      }
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
+) {
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      `Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
+  }
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
     }
-    let tmp = this.depIds;
-    this.depIds = this.newDepIds;
-    this.newDepIds = tmp;
-    this.newDepIds.clear();
-    tmp = this.deps;
-    this.deps = this.newDeps;
-    this.newDeps = tmp;
-    this.newDeps.length = 0;
   }
-
-  /**
-   * Subscriber interface.
-   * Will be called when a dependency changes.
-   */
-  update () {
-    /* istanbul ignore else */
-    if (this.lazy) {
-      this.dirty = true;
-    } else if (this.sync) {
-      this.run();
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  let vnode, ns;
+  if (typeof tag === 'string') {
+    let Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
     } else {
-      queueWatcher(this);
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) applyNS(vnode, ns);
+    if (isDef(data)) registerDeepBindings(data);
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
+}
 
-  /**
-   * Scheduler job interface.
-   * Will be called by the scheduler.
-   */
-  run () {
-    if (this.active) {
-      const value = this.get();
-      if (
-        value !== this.value ||
-        // Deep watchers and watchers on Object/Arrays should fire even
-        // when the value is the same, because the value may
-        // have mutated.
-        isObject(value) ||
-        this.deep
-      ) {
-        // set new value
-        const oldValue = this.value;
-        this.value = value;
-        if (this.user) {
-          try {
-            this.cb.call(this.vm, value, oldValue);
-          } catch (e) {
-            handleError(e, this.vm, `callback for watcher "${this.expression}"`);
-          }
-        } else {
-          this.cb.call(this.vm, value, oldValue);
-        }
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (let i = 0, l = vnode.children.length; i < l; i++) {
+      const child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
       }
     }
   }
+}
 
-  /**
-   * Evaluate the value of the watcher.
-   * This only gets called for lazy watchers.
-   */
-  evaluate () {
-    this.value = this.get();
-    this.dirty = false;
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
   }
+}
 
-  /**
-   * Depend on all deps collected by this watcher.
-   */
-  depend () {
-    let i = this.deps.length;
-    while (i--) {
-      this.deps[i].depend();
-    }
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  const options = vm.$options;
+  const parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  const renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = (a, b, c, d) => createElement(vm, a, b, c, d, false);
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = (a, b, c, d) => createElement(vm, a, b, c, d, true);
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  const parentData = parentVnode && parentVnode.data;
+
+  /* istanbul ignore else */
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
+      !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, () => {
+      !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm);
+    }, true);
   }
+}
 
-  /**
-   * Remove self from all dependencies' subscriber list.
-   */
-  teardown () {
-    if (this.active) {
-      // remove self from vm's watcher list
-      // this is a somewhat expensive operation so we skip it
-      // if the vm is being destroyed.
-      if (!this.vm._isBeingDestroyed) {
-        remove(this.vm._watchers, this);
+let currentRenderingInstance = null;
+
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
+
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
+
+  Vue.prototype._render = function () {
+    const vm = this;
+    const { render, _parentVnode } = vm.$options;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    let vnode;
+    try {
+      // There's no need to maintain a stack becaues all render fns are called
+      // separately from one another. Nested component's render fns are called
+      // when parent component is patched.
+      currentRenderingInstance = vm;
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, `render`);
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, `renderError`);
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
       }
-      let i = this.deps.length;
-      while (i--) {
-        this.deps[i].removeSub(this);
+    } finally {
+      currentRenderingInstance = null;
+    }
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
       }
-      this.active = false;
+      vnode = createEmptyVNode();
     }
-  }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
 }
 
 /*  */
 
-const sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
 
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  const node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data, context, children, tag };
+  return node
 }
 
-function initState (vm) {
-  vm._watchers = [];
-  const opts = vm.$options;
-  if (opts.props) initProps(vm, opts.props);
-  if (opts.methods) initMethods(vm, opts.methods);
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
+function resolveAsyncComponent (
+  factory,
+  baseCtor
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
   }
-  if (opts.computed) initComputed(vm, opts.computed);
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
   }
-}
 
-function initProps (vm, propsOptions) {
-  const propsData = vm.$options.propsData || {};
-  const props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  const keys = vm.$options._propKeys = [];
-  const isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
   }
-  for (const key in propsOptions) {
-    keys.push(key);
-    const value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      const hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          `"${hyphenatedKey}" is a reserved attribute and cannot be used as component prop.`,
-          vm
-        );
+
+  const owner = currentRenderingInstance;
+  if (isDef(factory.owners)) {
+    // already pending
+    factory.owners.push(owner);
+  } else {
+    const owners = factory.owners = [owner];
+    let sync = true;
+
+    const forceRender = (renderCompleted) => {
+      for (let i = 0, l = owners.length; i < l; i++) {
+        (owners[i]).$forceUpdate();
       }
-      defineReactive$$1(props, key, value, () => {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            `Avoid mutating a prop directly since the value will be ` +
-            `overwritten whenever the parent component re-renders. ` +
-            `Instead, use a data or computed property based on the prop's ` +
-            `value. Prop being mutated: "${key}"`,
-            vm
-          );
-        }
-      });
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, `_props`, key);
-    }
-  }
-  toggleObserving(true);
-}
 
-function initData (vm) {
-  let data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  const keys = Object.keys(data);
-  const props = vm.$options.props;
-  const methods = vm.$options.methods;
-  let i = keys.length;
-  while (i--) {
-    const key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          `Method "${key}" has already been defined as a data property.`,
-          vm
-        );
+      if (renderCompleted) {
+        owners.length = 0;
       }
-    }
-    if (props && hasOwn(props, key)) {
+    };
+
+    const resolve = once((res) => {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        owners.length = 0;
+      }
+    });
+
+    const reject = once(reason => {
       warn(
-        `The data property "${key}" is already declared as a prop. ` +
-        `Use prop default value instead.`,
-        vm
+        `Failed to resolve async component: ${String(factory)}` +
+        (reason ? `\nReason: ${reason}` : '')
       );
-    } else if (!isReserved(key)) {
-      proxy(vm, `_data`, key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
 
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, `data()`);
-    return {}
-  } finally {
-    popTarget();
+    const res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(() => {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(() => {
+            if (isUndef(factory.resolved)) {
+              reject(
+                `timeout (${res.timeout}ms)`
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
   }
 }
 
-const computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  const watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  const isSSR = isServerRendering();
+/*  */
 
-  for (const key in computed) {
-    const userDef = computed[key];
-    const getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (getter == null) {
-      warn(
-        `Getter is missing for computed property "${key}".`,
-        vm
-      );
-    }
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
 
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
+/*  */
 
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(`The computed property "${key}" is already defined in data.`, vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(`The computed property "${key}" is already defined as a prop.`, vm);
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (let i = 0; i < children.length; i++) {
+      const c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
       }
     }
   }
 }
 
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  const shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        `Computed property "${key}" was assigned to but it has no setter.`,
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
+/*  */
 
-function createComputedGetter (key) {
-  return function computedGetter () {
-    const watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  const listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
   }
 }
 
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
+let target;
+
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
-function initMethods (vm, methods) {
-  const props = vm.$options.props;
-  for (const key in methods) {
-    {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          `Method "${key}" has type "${typeof methods[key]}" in the component definition. ` +
-          `Did you reference the function correctly?`,
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          `Method "${key}" has already been defined as a prop.`,
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          `Method "${key}" conflicts with an existing Vue instance method. ` +
-          `Avoid defining component methods that start with _ or $.`
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
+function remove$1 (event, fn) {
+  target.$off(event, fn);
 }
 
-function initWatch (vm, watch) {
-  for (const key in watch) {
-    const handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (let i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
+function createOnceHandler (event, fn) {
+  const _target = target;
+  return function onceHandler () {
+    const res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
     }
   }
 }
 
-function createWatcher (
+function updateComponentListeners (
   vm,
-  expOrFn,
-  handler,
-  options
+  listeners,
+  oldListeners
 ) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
 }
 
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  const dataDef = {};
-  dataDef.get = function () { return this._data };
-  const propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn(`$props is readonly.`, this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
+function eventsMixin (Vue) {
+  const hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    const vm = this;
+    if (Array.isArray(event)) {
+      for (let i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
+  Vue.prototype.$once = function (event, fn) {
+    const vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    const vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (let i = 0, l = event.length; i < l; i++) {
+        vm.$off(event[i], fn);
+      }
+      return vm
+    }
+    // specific event
+    const cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    let cb;
+    let i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
+  Vue.prototype.$emit = function (event) {
     const vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    const watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, `callback for immediate watcher "${watcher.expression}"`);
+    {
+      const lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          `Event "${lowerCaseEvent}" is emitted in component ` +
+          `${formatComponentName(vm)} but the handler is registered for "${event}". ` +
+          `Note that HTML attributes are case-insensitive and you cannot use ` +
+          `v-on to listen to camelCase events when using in-DOM templates. ` +
+          `You should probably use "${hyphenate(event)}" instead of "${event}".`
+        );
       }
     }
-    return function unwatchFn () {
-      watcher.teardown();
+    let cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      const args = toArray(arguments, 1);
+      const info = `event handler for "${event}"`;
+      for (let i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
     }
+    return vm
   };
 }
 
 /*  */
 
-function initProvide (vm) {
-  const provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
+let activeInstance = null;
+let isUpdatingChildComponent = false;
 
-function initInjections (vm) {
-  const result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(key => {
-      /* istanbul ignore else */
-      {
-        defineReactive$$1(vm, key, result[key], () => {
-          warn(
-            `Avoid mutating an injected value directly since the changes will be ` +
-            `overwritten whenever the provided component re-renders. ` +
-            `injection being mutated: "${key}"`,
-            vm
-          );
-        });
-      }
-    });
-    toggleObserving(true);
+function setActiveInstance(vm) {
+  const prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return () => {
+    activeInstance = prevActiveInstance;
   }
 }
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    const result = Object.create(null);
-    const keys = hasSymbol
-      ? Reflect.ownKeys(inject)
-      : Object.keys(inject);
+function initLifecycle (vm) {
+  const options = vm.$options;
 
-    for (let i = 0; i < keys.length; i++) {
-      const key = keys[i];
-      // #6574 in case the inject object is observed...
-      if (key === '__ob__') continue
-      const provideKey = inject[key].from;
-      let source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          const provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(`Injection "${key}" not found`, vm);
-        }
-      }
+  // locate first non-abstract parent
+  let parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
     }
-    return result
+    parent.$children.push(vm);
   }
-}
 
-/*  */
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
 
-function normalizeScopedSlots (
-  slots,
-  normalSlots
-) {
-  let res;
-  if (!slots) {
-    res = {};
-  } else if (slots._normalized) {
-    return slots
-  } else {
-    res = {};
-    for (const key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-      }
-    }
-  }
-  // expose normal slots on scopedSlots
-  for (const key in normalSlots) {
-    if (!(key in res)) {
-      res[key] = proxyNormalSlot(normalSlots, key);
-    }
-  }
-  res._normalized = true;
-  res.$stable = slots ? slots.$stable : true;
-  return res
-}
+  vm.$children = [];
+  vm.$refs = {};
 
-function normalizeScopedSlot(normalSlots, key, fn) {
-  const normalized = (scope = {}) => {
-    const res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
-      ? [res] // single vnode
-      : normalizeChildren(res)
-  };
-  // proxy scoped slots on normal $slots
-  if (!hasOwn(normalSlots, key)) {
-    Object.defineProperty(normalSlots, key, {
-      get: normalized
-    });
-  }
-  return normalized
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
 }
 
-function proxyNormalSlot(slots, key) {
-  return () => slots[key]
-}
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    const vm = this;
+    const prevEl = vm.$el;
+    const prevVnode = vm._vnode;
+    const restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
 
-/*  */
+  Vue.prototype.$forceUpdate = function () {
+    const vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  let ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
+  Vue.prototype.$destroy = function () {
+    const vm = this;
+    if (vm._isBeingDestroyed) {
+      return
     }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    const parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
     }
-  } else if (isObject(val)) {
-    if (hasSymbol && val[Symbol.iterator]) {
-      ret = [];
-      const iterator = val[Symbol.iterator]();
-      let result = iterator.next();
-      while (!result.done) {
-        ret.push(render(result.value, ret.length));
-        result = iterator.next();
-      }
-    } else {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
-      }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    let i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
     }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
+    }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
 }
 
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
+function mountComponent (
+  vm,
+  el,
+  hydrating
 ) {
-  const scopedSlotFn = this.$scopedSlots[name];
-  let nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (!isObject(bindObject)) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
         warn(
-          'slot v-bind without argument expects an Object',
-          this
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
         );
       }
-      props = extend(extend({}, bindObject), props);
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
   }
+  callHook(vm, 'beforeMount');
 
-  const target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
+  let updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = () => {
+      const name = vm._name;
+      const id = vm._uid;
+      const startTag = `vue-perf-start:${id}`;
+      const endTag = `vue-perf-end:${id}`;
 
-/*  */
+      mark(startTag);
+      const vnode = vm._render();
+      mark(endTag);
+      measure(`vue ${name} render`, startTag, endTag);
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(`vue ${name} patch`, startTag, endTag);
+    };
+  } else {
+    updateComponent = () => {
+      vm._update(vm._render(), hydrating);
+    };
+  }
 
-/*  */
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
   }
+  return vm
 }
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
 ) {
-  const mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
+  {
+    isUpdatingChildComponent = true;
   }
-}
 
-/*  */
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
 
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      let hash;
-      for (const key in value) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          const type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        const camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  const hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
 
-          if (isSync) {
-            const on = data.on || (data.on = {});
-            on[`update:${camelizedKey}`] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      }
-    }
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  const needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
   }
-  return data
-}
+  vm.$options._renderChildren = renderChildren;
 
-/*  */
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  const cached = this._staticTrees || (this._staticTrees = []);
-  let tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    const props = vm._props;
+    const propKeys = vm.$options._propKeys || [];
+    for (let i = 0; i < propKeys.length; i++) {
+      const key = propKeys[i];
+      const propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
   }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, `__static__${index}`, false);
-  return tree
-}
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, `__once__${index}${key ? `_${key}` : ``}`, true);
-  return tree
-}
+  // update listeners
+  listeners = listeners || emptyObject;
+  const oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
 
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (let i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], `${key}_${i}`, isOnce);
-      }
-    }
-  } else {
-    markStaticNode(tree, key, isOnce);
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
   }
-}
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
+  {
+    isUpdatingChildComponent = false;
+  }
 }
 
-/*  */
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) return true
+  }
+  return false
+}
 
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      const on = data.on = data.on ? extend({}, data.on) : {};
-      for (const key in value) {
-        const existing = on[key];
-        const ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (let i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
     }
+    callHook(vm, 'activated');
   }
-  return data
 }
 
-/*  */
-
-function bindDynamicKeys (baseObj, values) {
-  for (let i = 0; i < values.length; i += 2) {
-    const key = values[i];
-    if (typeof key === 'string' && key) {
-      baseObj[values[i]] = values[i + 1];
-    } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
-      warn(
-        `Invalid value for dynamic directive argument (expected string or null): ${key}`,
-        this
-      );
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
     }
   }
-  return baseObj
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (let i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
 }
 
-// helper to dynamically append modifier runtime markers to event names.
-// ensure only append when value is already string, otherwise it will be cast
-// to string and cause the type check to miss.
-function prependModifier (value, symbol) {
-  return typeof value === 'string' ? symbol + value : value
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  const handlers = vm.$options[hook];
+  const info = `${hook} hook`;
+  if (handlers) {
+    for (let i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
 }
 
 /*  */
 
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-  target._d = bindDynamicKeys;
-  target._p = prependModifier;
-}
+const MAX_UPDATE_COUNT = 100;
 
-/*  */
+const queue = [];
+const activatedChildren = [];
+let has = {};
+let circular = {};
+let waiting = false;
+let flushing = false;
+let index = 0;
 
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  const options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  let contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
   }
-  const isCompiled = isTrue(options._compiled);
-  const needNormalization = !isCompiled;
+  waiting = flushing = false;
+}
 
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = () => resolveSlots(children, parent);
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+let currentFlushTimestamp = 0;
 
-  Object.defineProperty(this, 'scopedSlots', ({
-    enumerable: true,
-    get () {
-      return normalizeScopedSlots(data.scopedSlots, this.slots())
-    }
-  }));
+// Async edge case fix requires storing an event listener's attach timestamp.
+let getNow = Date.now;
 
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
-  }
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res (relative to page load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = () => performance.now();
+}
 
-  if (options._scopeId) {
-    this._c = (a, b, c, d) => {
-      const vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  let watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort((a, b) => a.id - b.id);
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? `in watcher with expression "${watcher.expression}"`
+              : `in a component render function.`
+          ),
+          watcher.vm
+        );
+        break
       }
-      return vnode
-    };
-  } else {
-    this._c = (a, b, c, d) => createElement(contextVm, a, b, c, d, needNormalization);
+    }
   }
-}
 
-installRenderHelpers(FunctionalRenderContext.prototype);
+  // keep copies of post queues before resetting state
+  const activatedQueue = activatedChildren.slice();
+  const updatedQueue = queue.slice();
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  const options = Ctor.options;
-  const props = {};
-  const propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (const key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) mergeProps(props, data.attrs);
-    if (isDef(data.props)) mergeProps(props, data.props);
-  }
+  resetSchedulerState();
 
-  const renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
 
-  const vnode = options.render.call(null, renderContext._c, renderContext);
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    const vnodes = normalizeChildren(vnode) || [];
-    const res = new Array(vnodes.length);
-    for (let i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+function callUpdatedHooks (queue) {
+  let i = queue.length;
+  while (i--) {
+    const watcher = queue[i];
+    const vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
     }
-    return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  const clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
 }
 
-function mergeProps (to, from) {
-  for (const key in from) {
-    to[camelize(key)] = from[key];
+function callActivatedHooks (queue) {
+  for (let i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
   }
 }
 
-/*  */
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  const id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      let i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
 
-/*  */
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
 
 /*  */
 
-/*  */
 
-// inline hooks to be invoked on component VNodes during patch
-const componentVNodeHooks = {
-  init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      const mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      const child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
 
-  prepatch (oldVnode, vnode) {
-    const options = vnode.componentOptions;
-    const child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+let uid$2 = 0;
 
-  insert (vnode) {
-    const { context, componentInstance } = vnode;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+class Watcher {
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+  
+
+  constructor (
+    vm,
+    expOrFn,
+    cb,
+    options,
+    isRenderWatcher
+  ) {
+    this.vm = vm;
+    if (isRenderWatcher) {
+      vm._watcher = this;
     }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
+    vm._watchers.push(this);
+    // options
+    if (options) {
+      this.deep = !!options.deep;
+      this.user = !!options.user;
+      this.lazy = !!options.lazy;
+      this.sync = !!options.sync;
+      this.before = options.before;
+    } else {
+      this.deep = this.user = this.lazy = this.sync = false;
+    }
+    this.cb = cb;
+    this.id = ++uid$2; // uid for batching
+    this.active = true;
+    this.dirty = this.lazy; // for lazy watchers
+    this.deps = [];
+    this.newDeps = [];
+    this.depIds = new _Set();
+    this.newDepIds = new _Set();
+    this.expression = expOrFn.toString();
+    // parse expression for getter
+    if (typeof expOrFn === 'function') {
+      this.getter = expOrFn;
+    } else {
+      this.getter = parsePath(expOrFn);
+      if (!this.getter) {
+        this.getter = noop;
+        warn(
+          `Failed watching path: "${expOrFn}" ` +
+          'Watcher only accepts simple dot-delimited paths. ' +
+          'For full control, use a function instead.',
+          vm
+        );
       }
     }
-  },
+    this.value = this.lazy
+      ? undefined
+      : this.get();
+  }
 
-  destroy (vnode) {
-    const { componentInstance } = vnode;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
+  /**
+   * Evaluate the getter, and re-collect dependencies.
+   */
+  get () {
+    pushTarget(this);
+    let value;
+    const vm = this.vm;
+    try {
+      value = this.getter.call(vm, vm);
+    } catch (e) {
+      if (this.user) {
+        handleError(e, vm, `getter for watcher "${this.expression}"`);
       } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
+        throw e
+      }
+    } finally {
+      // "touch" every property so they are all tracked as
+      // dependencies for deep watching
+      if (this.deep) {
+        traverse(value);
       }
+      popTarget();
+      this.cleanupDeps();
     }
+    return value
   }
-};
-
-const hooksToMerge = Object.keys(componentVNodeHooks);
 
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
+  /**
+   * Add a dependency to this directive.
+   */
+  addDep (dep) {
+    const id = dep.id;
+    if (!this.newDepIds.has(id)) {
+      this.newDepIds.add(id);
+      this.newDeps.push(dep);
+      if (!this.depIds.has(id)) {
+        dep.addSub(this);
+      }
+    }
   }
 
-  const baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
+  /**
+   * Clean up for dependency collection.
+   */
+  cleanupDeps () {
+    let i = this.deps.length;
+    while (i--) {
+      const dep = this.deps[i];
+      if (!this.newDepIds.has(dep.id)) {
+        dep.removeSub(this);
+      }
+    }
+    let tmp = this.depIds;
+    this.depIds = this.newDepIds;
+    this.newDepIds = tmp;
+    this.newDepIds.clear();
+    tmp = this.deps;
+    this.deps = this.newDeps;
+    this.newDeps = tmp;
+    this.newDeps.length = 0;
   }
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(`Invalid Component definition: ${String(Ctor)}`, context);
+  /**
+   * Subscriber interface.
+   * Will be called when a dependency changes.
+   */
+  update () {
+    /* istanbul ignore else */
+    if (this.lazy) {
+      this.dirty = true;
+    } else if (this.sync) {
+      this.run();
+    } else {
+      queueWatcher(this);
     }
-    return
   }
 
-  // async component
-  let asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+  /**
+   * Scheduler job interface.
+   * Will be called by the scheduler.
+   */
+  run () {
+    if (this.active) {
+      const value = this.get();
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        const oldValue = this.value;
+        this.value = value;
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue);
+          } catch (e) {
+            handleError(e, this.vm, `callback for watcher "${this.expression}"`);
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue);
+        }
+      }
     }
   }
 
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
+  /**
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
+   */
+  evaluate () {
+    this.value = this.get();
+    this.dirty = false;
   }
 
-  // extract props
-  const propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  /**
+   * Depend on all deps collected by this watcher.
+   */
+  depend () {
+    let i = this.deps.length;
+    while (i--) {
+      this.deps[i].depend();
+    }
   }
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  const listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    const slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+  /**
+   * Remove self from all dependencies' subscriber list.
+   */
+  teardown () {
+    if (this.active) {
+      // remove self from vm's watcher list
+      // this is a somewhat expensive operation so we skip it
+      // if the vm is being destroyed.
+      if (!this.vm._isBeingDestroyed) {
+        remove(this.vm._watchers, this);
+      }
+      let i = this.deps.length;
+      while (i--) {
+        this.deps[i].removeSub(this);
+      }
+      this.active = false;
     }
   }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  const name = Ctor.options.name || tag;
-  const vnode = new VNode(
-    `vue-component-${Ctor.cid}${name ? `-${name}` : ''}`,
-    data, undefined, undefined, undefined, context,
-    { Ctor, propsData, listeners, tag, children },
-    asyncFactory
-  );
-
-  return vnode
 }
 
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent, // activeInstance in lifecycle state
-) {
-  const options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent
-  };
-  // check inline-template render functions
-  const inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
+/*  */
 
-function installComponentHooks (data) {
-  const hooks = data.hook || (data.hook = {});
-  for (let i = 0; i < hooksToMerge.length; i++) {
-    const key = hooksToMerge[i];
-    const existing = hooks[key];
-    const toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
-  }
-}
+const sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
 
-function mergeHook$1 (f1, f2) {
-  const merged = (a, b) => {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
   };
-  merged._merged = true;
-  return merged
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  const prop = (options.model && options.model.prop) || 'value';
-  const event = (options.model && options.model.event) || 'input'
-  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
-  const on = data.on || (data.on = {});
-  const existing = on[event];
-  const callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
+function initState (vm) {
+  vm._watchers = [];
+  const opts = vm.$options;
+  if (opts.props) initProps(vm, opts.props);
+  if (opts.methods) initMethods(vm, opts.methods);
+  if (opts.data) {
+    initData(vm);
   } else {
-    on[event] = callback;
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) initComputed(vm, opts.computed);
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
   }
 }
 
-/*  */
-
-const SIMPLE_NORMALIZE = 1;
-const ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
+function initProps (vm, propsOptions) {
+  const propsData = vm.$options.propsData || {};
+  const props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  const keys = vm.$options._propKeys = [];
+  const isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
   }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
+  for (const key in propsOptions) {
+    keys.push(key);
+    const value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      const hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          `"${hyphenatedKey}" is a reserved attribute and cannot be used as component prop.`,
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, () => {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            `Avoid mutating a prop directly since the value will be ` +
+            `overwritten whenever the parent component re-renders. ` +
+            `Instead, use a data or computed property based on the prop's ` +
+            `value. Prop being mutated: "${key}"`,
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, `_props`, key);
+    }
   }
-  return _createElement(context, tag, data, children, normalizationType)
+  toggleObserving(true);
 }
 
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
+function initData (vm) {
+  let data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
     warn(
-      `Avoid using observed data object as vnode data: ${JSON.stringify(data)}\n` +
-      'Always create fresh vnode data objects in each render!',
-      context
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
     );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
   }
-  // warn against non-primitive key
-  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
+  // proxy data on instance
+  const keys = Object.keys(data);
+  const props = vm.$options.props;
+  const methods = vm.$options.methods;
+  let i = keys.length;
+  while (i--) {
+    const key = keys[i];
     {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          `Method "${key}" has already been defined as a data property.`,
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
       warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
+        `The data property "${key}" is already declared as a prop. ` +
+        `Use prop default value instead.`,
+        vm
       );
+    } else if (!isReserved(key)) {
+      proxy(vm, `_data`, key);
     }
   }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, `data()`);
+    return {}
+  } finally {
+    popTarget();
   }
-  let vnode, ns;
-  if (typeof tag === 'string') {
-    let Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
+}
+
+const computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  const watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  const isSSR = isServerRendering();
+
+  for (const key in computed) {
+    const userDef = computed[key];
+    const getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        `Getter is missing for computed property "${key}".`,
+        vm
       );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
       );
     }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(`The computed property "${key}" is already defined in data.`, vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(`The computed property "${key}" is already defined as a prop.`, vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  const shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
   } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) applyNS(vnode, ns);
-    if (isDef(data)) registerDeepBindings(data);
-    return vnode
-  } else {
-    return createEmptyVNode()
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        `Computed property "${key}" was assigned to but it has no setter.`,
+        this
+      );
+    };
   }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (let i = 0, l = vnode.children.length; i < l; i++) {
-      const child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
+function createComputedGetter (key) {
+  return function computedGetter () {
+    const watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
       }
+      return watcher.value
     }
   }
 }
 
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
   }
 }
 
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  const options = vm.$options;
-  const parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  const renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = (a, b, c, d) => createElement(vm, a, b, c, d, false);
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = (a, b, c, d) => createElement(vm, a, b, c, d, true);
+function initMethods (vm, methods) {
+  const props = vm.$options.props;
+  for (const key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          `Method "${key}" has type "${typeof methods[key]}" in the component definition. ` +
+          `Did you reference the function correctly?`,
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          `Method "${key}" has already been defined as a prop.`,
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          `Method "${key}" conflicts with an existing Vue instance method. ` +
+          `Avoid defining component methods that start with _ or $.`
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
 
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  const parentData = parentVnode && parentVnode.data;
+function initWatch (vm, watch) {
+  for (const key in watch) {
+    const handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (let i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
 
-  /* istanbul ignore else */
-  {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => {
-      !isUpdatingChildComponent && warn(`$attrs is readonly.`, vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, () => {
-      !isUpdatingChildComponent && warn(`$listeners is readonly.`, vm);
-    }, true);
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
   }
+  return vm.$watch(expOrFn, handler, options)
 }
 
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  const dataDef = {};
+  dataDef.get = function () { return this._data };
+  const propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn(`$props is readonly.`, this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
 
-  Vue.prototype._render = function () {
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
     const vm = this;
-    const { render, _parentVnode } = vm.$options;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = normalizeScopedSlots(
-        _parentVnode.data.scopedSlots,
-        vm.$slots
-      );
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
     }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    let vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, `render`);
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, `renderError`);
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
+    options = options || {};
+    options.user = true;
+    const watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, `callback for immediate watcher "${watcher.expression}"`);
       }
     }
-    // if the returned array contains only a single node, allow it
-    if (Array.isArray(vnode) && vnode.length === 1) {
-      vnode = vnode[0];
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
+    return function unwatchFn () {
+      watcher.teardown();
     }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
   };
 }
 
@@ -5359,7 +5364,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.2';
+Vue.version = '2.6.3';
 
 /*  */
 
@@ -7415,6 +7420,11 @@ function createOnceHandler$1 (event, handler, capture) {
   }
 }
 
+// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+// implementation and does not fire microtasks in between event propagation, so
+// safe to exclude.
+const useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
+
 function add$1 (
   name,
   handler,
@@ -7427,11 +7437,16 @@ function add$1 (
   // the solution is simple: we save the timestamp when a handler is attached,
   // and the handler would only fire if the event passed to it was fired
   // AFTER it was attached.
-  if (isUsingMicroTask) {
+  if (useMicrotaskFix) {
     const attachedTimestamp = currentFlushTimestamp;
     const original = handler;
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= attachedTimestamp) {
+      if (
+        e.timeStamp >= attachedTimestamp ||
+        // #9448 bail if event is fired in another document in a multi-page
+        // electron/nw.js app
+        e.target.ownerDocument !== document
+      ) {
         return original.apply(this, arguments)
       }
     };
@@ -9437,6 +9452,8 @@ const invalidAttributeRE = /[\s"'<>\/=]/;
 
 const decodeHTMLCached = cached(he.decode);
 
+const emptySlotScopeToken = `_empty_`;
+
 // configurable state
 let warn$2;
 let delimiters;
@@ -10047,7 +10064,7 @@ function processSlotContent (el) {
         const { name, dynamic } = getSlotName(slotBinding);
         el.slotTarget = name;
         el.slotTargetDynamic = dynamic;
-        el.slotScope = slotBinding.value || `_`; // force it into a scoped slot for perf
+        el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
       }
     } else {
       // v-slot on component, denotes default slot
@@ -10080,8 +10097,13 @@ function processSlotContent (el) {
         const slotContainer = slots[name] = createASTElement('template', [], el);
         slotContainer.slotTarget = name;
         slotContainer.slotTargetDynamic = dynamic;
-        slotContainer.children = el.children.filter(c => !(c).slotScope);
-        slotContainer.slotScope = slotBinding.value || `_`;
+        slotContainer.children = el.children.filter((c) => {
+          if (!c.slotScope) {
+            c.parent = slotContainer;
+            return true
+          }
+        });
+        slotContainer.slotScope = slotBinding.value || emptySlotScopeToken;
         // remove children as they are returned from scopedSlots now
         el.children = [];
         // mark el non-plain so data gets generated
@@ -11040,7 +11062,7 @@ function genData$2 (el, state) {
   }
   // scoped slots
   if (el.scopedSlots) {
-    data += `${genScopedSlots(el.scopedSlots, state)},`;
+    data += `${genScopedSlots(el, el.scopedSlots, state)},`;
   }
   // component v-model
   if (el.model) {
@@ -11127,18 +11149,36 @@ function genInlineTemplate (el, state) {
 }
 
 function genScopedSlots (
+  el,
   slots,
   state
 ) {
-  const hasDynamicKeys = Object.keys(slots).some(key => {
+  // by default scoped slots are considered "stable", this allows child
+  // components with only scoped slots to skip forced updates from parent.
+  // but in some cases we have to bail-out of this optimization
+  // for example if the slot contains dynamic names, has v-if or v-for on them...
+  let needsForceUpdate = Object.keys(slots).some(key => {
     const slot = slots[key];
     return slot.slotTargetDynamic || slot.if || slot.for
   });
+  // OR when it is inside another scoped slot (the reactivity is disconnected)
+  // #9438
+  if (!needsForceUpdate) {
+    let parent = el.parent;
+    while (parent) {
+      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        needsForceUpdate = true;
+        break
+      }
+      parent = parent.parent;
+    }
+  }
+
   return `scopedSlots:_u([${
     Object.keys(slots).map(key => {
       return genScopedSlot(slots[key], state)
     }).join(',')
-  }]${hasDynamicKeys ? `,true` : ``})`
+  }]${needsForceUpdate ? `,true` : ``})`
 }
 
 function genScopedSlot (
@@ -11152,7 +11192,10 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genFor(el, state, genScopedSlot)
   }
-  const fn = `function(${String(el.slotScope)}){` +
+  const slotScope = el.slotScope === emptySlotScopeToken
+    ? ``
+    : String(el.slotScope);
+  const fn = `function(${slotScope}){` +
     `return ${el.tag === 'template'
       ? el.if && isLegacySyntax
         ? `(${el.if})?${genChildren(el, state) || 'undefined'}:undefined`
@@ -11249,7 +11292,14 @@ function genSlot (el, state) {
   const slotName = el.slotName || '"default"';
   const children = genChildren(el, state);
   let res = `_t(${slotName}${children ? `,${children}` : ''}`;
-  const attrs = el.attrs && `{${el.attrs.map(a => `${camelize(a.name)}:${a.value}`).join(',')}}`;
+  const attrs = el.attrs || el.dynamicAttrs
+    ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(attr => ({
+        // slot props are camelized
+        name: camelize(attr.name),
+        value: attr.value,
+        dynamic: attr.dynamic
+      })))
+    : null;
   const bind$$1 = el.attrsMap['v-bind'];
   if ((attrs || bind$$1) && !children) {
     res += `,null`;
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 111e977f8f0..79137b9abf3 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const g=Object.prototype.hasOwnProperty;function y(t,e){return g.call(t,e)}function v(t){const e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}const $=/-(\w)/g,_=v(t=>t.replace($,(t,e)=>e?e.toUpperCase():"")),b=v(t=>t.charAt(0).toUpperCase()+t.slice(1)),w=/\B([A-Z])/g,C=v(t=>t.replace(w,"-$1").toLowerCase());const x=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){const o=arguments.length;return o?o>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;let n=t.length-e;const o=new Array(n);for(;n--;)o[n]=t[n+e];return o}function k(t,e){for(const n in e)t[n]=e[n];return t}function O(t){const e={};for(let n=0;n<t.length;n++)t[n]&&k(e,t[n]);return e}function S(t,e,n){}const T=(t,e,n)=>!1,E=t=>t;function N(t,e){if(t===e)return!0;const n=s(t),o=s(e);if(!n||!o)return!n&&!o&&String(t)===String(e);try{const n=Array.isArray(t),o=Array.isArray(e);if(n&&o)return t.length===e.length&&t.every((t,n)=>N(t,e[n]));if(t instanceof Date&&e instanceof Date)return t.getTime()===e.getTime();if(n||o)return!1;{const n=Object.keys(t),o=Object.keys(e);return n.length===o.length&&n.every(n=>N(t[n],e[n]))}}catch(t){return!1}}function j(t,e){for(let n=0;n<t.length;n++)if(N(t[n],e))return n;return-1}function L(t){let e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}const M="data-server-rendered",I=["component","directive","filter"],D=["beforeCreate","created","beforeMount","mounted","beforeUpdate","updated","beforeDestroy","destroyed","activated","deactivated","errorCaptured","serverPrefetch"];var P={optionMergeStrategies:Object.create(null),silent:!1,productionTip:!1,devtools:!1,performance:!1,errorHandler:null,warnHandler:null,ignoredElements:[],keyCodes:Object.create(null),isReservedTag:T,isReservedAttr:T,isUnknownElement:T,getTagNamespace:S,parsePlatformTagName:E,mustUseProp:T,async:!0,_lifecycleHooks:D};function R(t){const e=(t+"").charCodeAt(0);return 36===e||95===e}function F(t,e,n,o){Object.defineProperty(t,e,{value:n,enumerable:!!o,writable:!0,configurable:!0})}const H=new RegExp("[^a-zA-Z\xb7\xc0-\xd6\xd8-\xf6\xf8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd.$_\\d]");const B="__proto__"in{},U="undefined"!=typeof window,z="undefined"!=typeof WXEnvironment&&!!WXEnvironment.platform,V=z&&WXEnvironment.platform.toLowerCase(),K=U&&window.navigator.userAgent.toLowerCase(),J=K&&/msie|trident/.test(K),q=K&&K.indexOf("msie 9.0")>0,W=K&&K.indexOf("edge/")>0,Z=(K&&K.indexOf("android"),K&&/iphone|ipad|ipod|ios/.test(K)||"ios"===V),G=(K&&/chrome\/\d+/.test(K),K&&/phantomjs/.test(K),{}.watch);let X,Y=!1;if(U)try{const t={};Object.defineProperty(t,"passive",{get(){Y=!0}}),window.addEventListener("test-passive",null,t)}catch(t){}const Q=()=>(void 0===X&&(X=!U&&!z&&"undefined"!=typeof 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r=t[o],s=zi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function zi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Vi(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Ki(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Vi(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Vi(t,c)),e[s]=a}}const Ji=(qi=function(t,e){const n=oi(t.trim(),e);!1!==e.optimize&&vi(n,e);const o=Ni(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=qi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Ki(e)}});var qi;const{compile:Wi,compileToFunctions:Zi}=Ji(hi);let Gi;function Xi(t){return(Gi=Gi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Gi.innerHTML.indexOf("&#10;")>0}const Yi=!!U&&Xi(!1),Qi=!!U&&Xi(!0),ta=v(t=>{const e=Kn(t);return e&&e.innerHTML}),ea=mn.prototype.$mount;mn.prototype.$mount=function(t,e){if((t=t&&Kn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=ta(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Zi(e,{outputSourceRange:!1,shouldDecodeNewlines:Yi,shouldDecodeNewlinesForHref:Qi,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return ea.call(this,t,e)},mn.compile=Zi;export default mn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 81b2c0623ad..df1fb691f77 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -532,6 +532,7 @@ var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 var isPhantomJS = UA && /phantomjs/.test(UA);
+var isFF = UA && UA.match(/firefox\/(\d+)/);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -2408,2450 +2409,2452 @@ function normalizeArrayChildren (children, nestedIndex) {
 
 /*  */
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
   }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
 }
 
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      if (process.env.NODE_ENV !== 'production') {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
       } else {
-        contexts.length = 0;
-      }
-    });
-
-    var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
+    toggleObserving(true);
+  }
+}
 
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (isPromise(res)) {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isPromise(res.component)) {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
         }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                process.env.NODE_ENV !== 'production'
-                  ? ("timeout (" + (res.timeout) + "ms)")
-                  : null
-              );
-            }
-          }, res.timeout);
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
         }
       }
     }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+    return result
   }
 }
 
 /*  */
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
 
-/*  */
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  var slots = {};
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
       }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
     }
   }
+  return slots
 }
 
-/*  */
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
 
 /*  */
 
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
   }
+  def(res, '_normalized', true);
+  def(res, '$stable', slots ? !!slots.$stable : true);
+  return res
 }
 
-var target;
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
 
-function add (event, fn) {
-  target.$on(event, fn);
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
 }
 
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
+/*  */
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        vm.$off(event[i$1], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
-      }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
     }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    if (process.env.NODE_ENV !== 'production') {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
       }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      var info = "event handler for \"" + event + "\"";
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
       }
     }
-    return vm
-  };
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
 }
 
 /*  */
 
-
-
 /**
- * Runtime helper for resolving raw children VNodes into a slot object.
+ * Runtime helper for rendering <slot>
  */
-function resolveSlots (
-  children,
-  context
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
 ) {
-  if (!children || !children.length) {
-    return {}
-  }
-  var slots = {};
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
       }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
+      props = extend(extend({}, bindObject), props);
     }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
   }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  hasDynamicKeys,
-  res
-) {
-  res = res || { $stable: !hasDynamicKeys };
-  for (var i = 0; i < fns.length; i++) {
-    var slot = fns[i];
-    if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else if (slot) {
-      res[slot.key] = slot.fn;
-    }
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
-  return res
 }
 
 /*  */
 
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
 }
 
-function initLifecycle (vm) {
-  var options = vm.$options;
+/*  */
 
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
   }
+}
 
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
 }
 
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
     } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
 
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
+      for (var key in value) loop( key );
     }
-  };
+  }
+  return data
 }
 
-function mountComponent (
-  vm,
-  el,
-  hydrating
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
 ) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    if (process.env.NODE_ENV !== 'production') {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
       }
     }
+  } else {
+    markStaticNode(tree, key, isOnce);
   }
-  callHook(vm, 'beforeMount');
+}
 
-  var updateComponent;
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
 
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
+/*  */
 
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
   }
+  return data
+}
 
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
-      }
+/*  */
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
+) {
+  res = res || { $stable: !hasDynamicKeys };
+  for (var i = 0; i < fns.length; i++) {
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else if (slot) {
+      res[slot.key] = slot.fn;
     }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
+  }
+  return res
+}
 
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
+/*  */
+
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
   }
-  return vm
+  return baseObj
 }
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
 ) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
   }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren.
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
 
-  // check if there are dynamic scopedSlots (hand-written or compiled but with
-  // dynamic slot names). Static scoped slots compiled from template has the
-  // "$stable" marker.
-  var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-  );
-  // Any static slot children from the parent may have changed during parent's
-  // update. Dynamic scoped slots may also have changed. In such cases, a forced
-  // update is necessary to ensure correctness.
-  var needsForceUpdate = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    hasDynamicScopedSlot
-  );
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
+  }
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
   }
-  vm.$options._renderChildren = renderChildren;
+}
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+installRenderHelpers(FunctionalRenderContext.prototype);
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
   }
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
 
-  // resolve slots + force update if has children
-  if (needsForceUpdate) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
   }
+}
 
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
   }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
 }
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
   }
-  return false
 }
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
-    callHook(vm, 'activated');
-  }
-}
+  },
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
     }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
     }
-    callHook(vm, 'deactivated');
-  }
-}
+  },
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  var info = hook + " hook";
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
     }
   }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
+};
 
-/*  */
+var hooksToMerge = Object.keys(componentVNodeHooks);
 
-var MAX_UPDATE_COUNT = 100;
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
 
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
+  var baseCtor = context.$options._base;
 
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
   }
-  waiting = flushing = false;
-}
 
-// Async edge case #6566 requires saving the timestamp when event listeners are
-// attached. However, calling performance.now() has a perf overhead especially
-// if the page has thousands of event listeners. Instead, we take a timestamp
-// every time the scheduler flushes and use that for all event listeners
-// attached during that flush.
-var currentFlushTimestamp = 0;
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
 
-// Async edge case fix requires storing an event listener's attach timestamp.
-var getNow = Date.now;
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
 
-// Determine what event timestamp the browser is using. Annoyingly, the
-// timestamp can either be hi-res ( relative to poge load) or low-res
-// (relative to UNIX epoch), so in order to compare time we have to use the
-// same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
-}
+  data = data || {};
 
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  currentFlushTimestamp = getNow();
-  flushing = true;
-  var watcher, id;
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
 
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
 
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
     }
   }
 
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
-  resetSchedulerState();
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
+  return vnode
+}
 
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
+  return new vnode.componentOptions.Ctor(options)
 }
 
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
     }
   }
 }
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
 }
 
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (process.env.NODE_ENV !== 'production' && !config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
     }
+  } else {
+    on[event] = callback;
   }
 }
 
 /*  */
 
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
 
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
 
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
+  if (isDef(data) && isDef((data).__ob__)) {
+    process.env.NODE_ENV !== 'production' && warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
   }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
   }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (process.env.NODE_ENV !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
     } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
-    popTarget();
-    this.cleanupDeps();
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
   }
-  return value
-};
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
 
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
     }
   }
-};
+}
 
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
   }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
 
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
+  if (process.env.NODE_ENV !== 'production') {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
   } else {
-    queueWatcher(this);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
-};
+}
 
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
+var currentRenderingInstance = null;
 
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
 
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
 
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      // There's no need to maintain a stack becaues all render fns are called
+      // separately from one another. Nested component's render fns are called
+      // when parent component is patched.
+      currentRenderingInstance = vm;
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    } finally {
+      currentRenderingInstance = null;
     }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
     }
-    this.active = false;
-  }
-};
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
 
 /*  */
 
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
 
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
 }
 
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
+function resolveAsyncComponent (
+  factory,
+  baseCtor
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
   }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
   }
-}
 
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
   }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
+
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners)) {
+    // already pending
+    factory.owners.push(owner);
+  } else {
+    var owners = factory.owners = [owner];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = owners.length; i < l; i++) {
+        (owners[i]).$forceUpdate();
       }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    } else {
-      defineReactive$$1(props, key, value);
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
 
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
+      if (renderCompleted) {
+        owners.length = 0;
+      }
+    };
 
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    process.env.NODE_ENV !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        owners.length = 0;
       }
-    }
-    if (props && hasOwn(props, key)) {
+    });
+
+    var reject = once(function (reason) {
       process.env.NODE_ENV !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
       );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
-
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
-  }
-}
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
 
-var computedWatcherOptions = { lazy: true };
+    var res = factory(resolve, reject);
 
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
 
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production' && getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
 
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
 
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else if (process.env.NODE_ENV !== 'production') {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                process.env.NODE_ENV !== 'production'
+                  ? ("timeout (" + (res.timeout) + "ms)")
+                  : null
+              );
+            }
+          }, res.timeout);
+        }
       }
     }
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
   }
 }
 
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
+/*  */
+
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
 }
 
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
+/*  */
+
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
       }
-      return watcher.value
     }
   }
 }
 
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
+/*  */
+
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
   }
 }
 
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
     }
   }
 }
 
-function createWatcher (
+function updateComponentListeners (
   vm,
-  expOrFn,
-  handler,
-  options
+  listeners,
+  oldListeners
 ) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
 }
 
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
 
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
+  Vue.prototype.$off = function (event, fn) {
     var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
     }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
       }
     }
-    return function unwatchFn () {
-      watcher.teardown();
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    var vm = this;
+    if (process.env.NODE_ENV !== 'production') {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
+      }
+    }
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
     }
+    return vm
   };
 }
 
 /*  */
 
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
+var activeInstance = null;
+var isUpdatingChildComponent = false;
 
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      } else {
-        defineReactive$$1(vm, key, result[key]);
-      }
-    });
-    toggleObserving(true);
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
   }
 }
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject)
-      : Object.keys(inject);
+function initLifecycle (vm) {
+  var options = vm.$options;
 
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      // #6574 in case the inject object is observed...
-      if (key === '__ob__') { continue }
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else if (process.env.NODE_ENV !== 'production') {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
     }
-    return result
+    parent.$children.push(vm);
   }
-}
-
-/*  */
 
-function normalizeScopedSlots (
-  slots,
-  normalSlots
-) {
-  var res;
-  if (!slots) {
-    res = {};
-  } else if (slots._normalized) {
-    return slots
-  } else {
-    res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-      }
-    }
-  }
-  // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
-    }
-  }
-  res._normalized = true;
-  res.$stable = slots ? slots.$stable : true;
-  return res
-}
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
 
-function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    if ( scope === void 0 ) scope = {};
+  vm.$children = [];
+  vm.$refs = {};
 
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
-      ? [res] // single vnode
-      : normalizeChildren(res)
-  };
-  // proxy scoped slots on normal $slots
-  if (!hasOwn(normalSlots, key)) {
-    Object.defineProperty(normalSlots, key, {
-      get: normalized
-    });
-  }
-  return normalized
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
 }
 
-function proxyNormalSlot(slots, key) {
-  return function () { return slots[key]; }
-}
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
 
-/*  */
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
     }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
     }
-  } else if (isObject(val)) {
-    if (hasSymbol && val[Symbol.iterator]) {
-      ret = [];
-      var iterator = val[Symbol.iterator]();
-      var result = iterator.next();
-      while (!result.done) {
-        ret.push(render(result.value, ret.length));
-        result = iterator.next();
-      }
-    } else {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
-      }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
     }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
 }
 
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
+function mountComponent (
+  vm,
+  el,
+  hydrating
 ) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    if (process.env.NODE_ENV !== 'production') {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
         warn(
-          'slot v-bind without argument expects an Object',
-          this
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
         );
       }
-      props = extend(extend({}, bindObject), props);
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
   }
+  callHook(vm, 'beforeMount');
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
+  var updateComponent;
+  /* istanbul ignore if */
+  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
 
-/*  */
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
 
-/*  */
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
   }
+  return vm
 }
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
 ) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
+  if (process.env.NODE_ENV !== 'production') {
+    isUpdatingChildComponent = true;
   }
-}
 
-/*  */
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
 
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
 
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
 
-      for (var key in value) loop( key );
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
   }
-  return data
-}
 
-/*  */
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  if (process.env.NODE_ENV !== 'production') {
+    isUpdatingChildComponent = false;
   }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
 }
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
 }
 
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
 }
 
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  var info = hook + " hook";
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
     }
   }
-  return data
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
 }
 
 /*  */
 
-function bindDynamicKeys (baseObj, values) {
-  for (var i = 0; i < values.length; i += 2) {
-    var key = values[i];
-    if (typeof key === 'string' && key) {
-      baseObj[values[i]] = values[i + 1];
-    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
-      warn(
-        ("Invalid value for dynamic directive argument (expected string or null): " + key),
-        this
-      );
-    }
+var MAX_UPDATE_COUNT = 100;
+
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
+
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  if (process.env.NODE_ENV !== 'production') {
+    circular = {};
   }
-  return baseObj
+  waiting = flushing = false;
 }
 
-// helper to dynamically append modifier runtime markers to event names.
-// ensure only append when value is already string, otherwise it will be cast
-// to string and cause the type check to miss.
-function prependModifier (value, symbol) {
-  return typeof value === 'string' ? symbol + value : value
-}
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
 
-/*  */
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
 
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-  target._d = bindDynamicKeys;
-  target._p = prependModifier;
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res (relative to page load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
 }
 
-/*  */
-
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
-  }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  var watcher, id;
 
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
 
-  Object.defineProperty(this, 'scopedSlots', ({
-    enumerable: true,
-    get: function get () {
-      return normalizeScopedSlots(data.scopedSlots, this.slots())
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
     }
-  }));
-
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
-  }
-
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
       }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+    }
   }
-}
 
-installRenderHelpers(FunctionalRenderContext.prototype);
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
+  resetSchedulerState();
 
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
 
-  var vnode = options.render.call(null, renderContext._c, renderContext);
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
     }
-    return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (process.env.NODE_ENV !== 'production') {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
-  }
-  return clone
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
 }
 
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
   }
 }
 
-/*  */
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
 
-/*  */
+      if (process.env.NODE_ENV !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
 
 /*  */
 
-/*  */
 
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
 
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+var uid$2 = 0;
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$2; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = process.env.NODE_ENV !== 'production'
+    ? expOrFn.toString()
+    : '';
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      process.env.NODE_ENV !== 'production' && warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
     }
-  },
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
+    }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
     }
+    popTarget();
+    this.cleanupDeps();
   }
+  return value
 };
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
+    }
   }
+};
 
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
+    }
   }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
 
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
-    }
-    return
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
   }
+};
 
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
     }
   }
+};
 
-  data = data || {};
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
 
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
+  }
+};
 
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
+    }
+    this.active = false;
   }
+};
 
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+/*  */
 
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
-  }
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
 
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
+  }
+}
 
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    if (process.env.NODE_ENV !== 'production') {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    } else {
+      defineReactive$$1(props, key, value);
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
     }
-  }
-
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
+  };
 
-  return vnode
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
 }
 
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
+    process.env.NODE_ENV !== 'production' && warn(
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
+    );
   }
-  return new vnode.componentOptions.Ctor(options)
-}
-
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
+    if (process.env.NODE_ENV !== 'production') {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
+      );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
     }
   }
+  // observe data
+  observe(data, true /* asRootData */);
 }
 
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
-
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
-  } else {
-    on[event] = callback;
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
   }
 }
 
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
+var computedWatcherOptions = { lazy: true };
 
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
-  }
-  return _createElement(context, tag, data, children, normalizationType)
-}
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
 
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (process.env.NODE_ENV !== 'production' && getter == null) {
       warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
       );
     }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
-      );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
       );
     }
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else if (process.env.NODE_ENV !== 'production') {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
+  }
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
   } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
+  if (process.env.NODE_ENV !== 'production' &&
+      sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
   }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
       }
+      return watcher.value
     }
   }
 }
 
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
   }
 }
 
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    if (process.env.NODE_ENV !== 'production') {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
 
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
 
-  /* istanbul ignore else */
-  if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
   }
+  return vm.$watch(expOrFn, handler, options)
 }
 
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  if (process.env.NODE_ENV !== 'production') {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
 
-  Vue.prototype._render = function () {
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
     var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = normalizeScopedSlots(
-        _parentVnode.data.scopedSlots,
-        vm.$slots
-      );
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
     }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
       }
     }
-    // if the returned array contains only a single node, allow it
-    if (Array.isArray(vnode) && vnode.length === 1) {
-      vnode = vnode[0];
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
+    return function unwatchFn () {
+      watcher.teardown();
     }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
   };
 }
 
@@ -5348,7 +5351,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.2';
+Vue.version = '2.6.3';
 
 /*  */
 
@@ -7414,6 +7417,11 @@ function createOnceHandler$1 (event, handler, capture) {
   }
 }
 
+// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+// implementation and does not fire microtasks in between event propagation, so
+// safe to exclude.
+var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
+
 function add$1 (
   name,
   handler,
@@ -7426,11 +7434,16 @@ function add$1 (
   // the solution is simple: we save the timestamp when a handler is attached,
   // and the handler would only fire if the event passed to it was fired
   // AFTER it was attached.
-  if (isUsingMicroTask) {
+  if (useMicrotaskFix) {
     var attachedTimestamp = currentFlushTimestamp;
     var original = handler;
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= attachedTimestamp) {
+      if (
+        e.timeStamp >= attachedTimestamp ||
+        // #9448 bail if event is fired in another document in a multi-page
+        // electron/nw.js app
+        e.target.ownerDocument !== document
+      ) {
         return original.apply(this, arguments)
       }
     };
@@ -9449,6 +9462,8 @@ var invalidAttributeRE = /[\s"'<>\/=]/;
 
 var decodeHTMLCached = cached(he.decode);
 
+var emptySlotScopeToken = "_empty_";
+
 // configurable state
 var warn$2;
 var delimiters;
@@ -10061,7 +10076,7 @@ function processSlotContent (el) {
         var dynamic = ref.dynamic;
         el.slotTarget = name;
         el.slotTargetDynamic = dynamic;
-        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+        el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
       }
     } else {
       // v-slot on component, denotes default slot
@@ -10096,8 +10111,13 @@ function processSlotContent (el) {
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
         slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
-        slotContainer.slotScope = slotBinding$1.value || "_";
+        slotContainer.children = el.children.filter(function (c) {
+          if (!c.slotScope) {
+            c.parent = slotContainer;
+            return true
+          }
+        });
+        slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
         // remove children as they are returned from scopedSlots now
         el.children = [];
         // mark el non-plain so data gets generated
@@ -11029,7 +11049,7 @@ function genData$2 (el, state) {
   }
   // scoped slots
   if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+    data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
   }
   // component v-model
   if (el.model) {
@@ -11102,16 +11122,34 @@ function genInlineTemplate (el, state) {
 }
 
 function genScopedSlots (
+  el,
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+  // by default scoped slots are considered "stable", this allows child
+  // components with only scoped slots to skip forced updates from parent.
+  // but in some cases we have to bail-out of this optimization
+  // for example if the slot contains dynamic names, has v-if or v-for on them...
+  var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return slot.slotTargetDynamic || slot.if || slot.for
   });
+  // OR when it is inside another scoped slot (the reactivity is disconnected)
+  // #9438
+  if (!needsForceUpdate) {
+    var parent = el.parent;
+    while (parent) {
+      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        needsForceUpdate = true;
+        break
+      }
+      parent = parent.parent;
+    }
+  }
+
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
       return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
@@ -11125,7 +11163,10 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genFor(el, state, genScopedSlot)
   }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
+  var slotScope = el.slotScope === emptySlotScopeToken
+    ? ""
+    : String(el.slotScope);
+  var fn = "function(" + slotScope + "){" +
     "return " + (el.tag === 'template'
       ? el.if && isLegacySyntax
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
@@ -11218,7 +11259,14 @@ function genSlot (el, state) {
   var slotName = el.slotName || '"default"';
   var children = genChildren(el, state);
   var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var attrs = el.attrs || el.dynamicAttrs
+    ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
+        // slot props are camelized
+        name: camelize(attr.name),
+        value: attr.value,
+        dynamic: attr.dynamic
+      }); }))
+    : null;
   var bind$$1 = el.attrsMap['v-bind'];
   if ((attrs || bind$$1) && !children) {
     res += ",null";
diff --git a/dist/vue.js b/dist/vue.js
index b89f44e22df..26151737239 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -538,6 +538,7 @@
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
   var isPhantomJS = UA && /phantomjs/.test(UA);
+  var isFF = UA && UA.match(/firefox\/(\d+)/);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -2408,2437 +2409,2439 @@
 
   /*  */
 
-  function ensureCtor (comp, base) {
-    if (
-      comp.__esModule ||
-      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-    ) {
-      comp = comp.default;
+  function initProvide (vm) {
+    var provide = vm.$options.provide;
+    if (provide) {
+      vm._provided = typeof provide === 'function'
+        ? provide.call(vm)
+        : provide;
     }
-    return isObject(comp)
-      ? base.extend(comp)
-      : comp
-  }
-
-  function createAsyncPlaceholder (
-    factory,
-    data,
-    context,
-    children,
-    tag
-  ) {
-    var node = createEmptyVNode();
-    node.asyncFactory = factory;
-    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-    return node
   }
 
-  function resolveAsyncComponent (
-    factory,
-    baseCtor,
-    context
-  ) {
-    if (isTrue(factory.error) && isDef(factory.errorComp)) {
-      return factory.errorComp
-    }
-
-    if (isDef(factory.resolved)) {
-      return factory.resolved
-    }
-
-    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-      return factory.loadingComp
-    }
-
-    if (isDef(factory.contexts)) {
-      // already pending
-      factory.contexts.push(context);
-    } else {
-      var contexts = factory.contexts = [context];
-      var sync = true;
-
-      var forceRender = function (renderCompleted) {
-        for (var i = 0, l = contexts.length; i < l; i++) {
-          contexts[i].$forceUpdate();
-        }
-
-        if (renderCompleted) {
-          contexts.length = 0;
-        }
-      };
-
-      var resolve = once(function (res) {
-        // cache resolved
-        factory.resolved = ensureCtor(res, baseCtor);
-        // invoke callbacks only if this is not a synchronous resolve
-        // (async resolves are shimmed as synchronous during SSR)
-        if (!sync) {
-          forceRender(true);
-        } else {
-          contexts.length = 0;
-        }
-      });
-
-      var reject = once(function (reason) {
-        warn(
-          "Failed to resolve async component: " + (String(factory)) +
-          (reason ? ("\nReason: " + reason) : '')
-        );
-        if (isDef(factory.errorComp)) {
-          factory.error = true;
-          forceRender(true);
+  function initInjections (vm) {
+    var result = resolveInject(vm.$options.inject, vm);
+    if (result) {
+      toggleObserving(false);
+      Object.keys(result).forEach(function (key) {
+        /* istanbul ignore else */
+        {
+          defineReactive$$1(vm, key, result[key], function () {
+            warn(
+              "Avoid mutating an injected value directly since the changes will be " +
+              "overwritten whenever the provided component re-renders. " +
+              "injection being mutated: \"" + key + "\"",
+              vm
+            );
+          });
         }
       });
+      toggleObserving(true);
+    }
+  }
 
-      var res = factory(resolve, reject);
-
-      if (isObject(res)) {
-        if (isPromise(res)) {
-          // () => Promise
-          if (isUndef(factory.resolved)) {
-            res.then(resolve, reject);
-          }
-        } else if (isPromise(res.component)) {
-          res.component.then(resolve, reject);
-
-          if (isDef(res.error)) {
-            factory.errorComp = ensureCtor(res.error, baseCtor);
-          }
+  function resolveInject (inject, vm) {
+    if (inject) {
+      // inject is :any because flow is not smart enough to figure out cached
+      var result = Object.create(null);
+      var keys = hasSymbol
+        ? Reflect.ownKeys(inject)
+        : Object.keys(inject);
 
-          if (isDef(res.loading)) {
-            factory.loadingComp = ensureCtor(res.loading, baseCtor);
-            if (res.delay === 0) {
-              factory.loading = true;
-            } else {
-              setTimeout(function () {
-                if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                  factory.loading = true;
-                  forceRender(false);
-                }
-              }, res.delay || 200);
-            }
+      for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        // #6574 in case the inject object is observed...
+        if (key === '__ob__') { continue }
+        var provideKey = inject[key].from;
+        var source = vm;
+        while (source) {
+          if (source._provided && hasOwn(source._provided, provideKey)) {
+            result[key] = source._provided[provideKey];
+            break
           }
-
-          if (isDef(res.timeout)) {
-            setTimeout(function () {
-              if (isUndef(factory.resolved)) {
-                reject(
-                  "timeout (" + (res.timeout) + "ms)"
-                );
-              }
-            }, res.timeout);
+          source = source.$parent;
+        }
+        if (!source) {
+          if ('default' in inject[key]) {
+            var provideDefault = inject[key].default;
+            result[key] = typeof provideDefault === 'function'
+              ? provideDefault.call(vm)
+              : provideDefault;
+          } else {
+            warn(("Injection \"" + key + "\" not found"), vm);
           }
         }
       }
-
-      sync = false;
-      // return in case resolved synchronously
-      return factory.loading
-        ? factory.loadingComp
-        : factory.resolved
+      return result
     }
   }
 
   /*  */
 
-  function isAsyncPlaceholder (node) {
-    return node.isComment && node.asyncFactory
-  }
 
-  /*  */
 
-  function getFirstComponentChild (children) {
-    if (Array.isArray(children)) {
-      for (var i = 0; i < children.length; i++) {
-        var c = children[i];
-        if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-          return c
+  /**
+   * Runtime helper for resolving raw children VNodes into a slot object.
+   */
+  function resolveSlots (
+    children,
+    context
+  ) {
+    if (!children || !children.length) {
+      return {}
+    }
+    var slots = {};
+    for (var i = 0, l = children.length; i < l; i++) {
+      var child = children[i];
+      var data = child.data;
+      // remove slot attribute if the node is resolved as a Vue slot node
+      if (data && data.attrs && data.attrs.slot) {
+        delete data.attrs.slot;
+      }
+      // named slots should only be respected if the vnode was rendered in the
+      // same context.
+      if ((child.context === context || child.fnContext === context) &&
+        data && data.slot != null
+      ) {
+        var name = data.slot;
+        var slot = (slots[name] || (slots[name] = []));
+        if (child.tag === 'template') {
+          slot.push.apply(slot, child.children || []);
+        } else {
+          slot.push(child);
         }
+      } else {
+        (slots.default || (slots.default = [])).push(child);
+      }
+    }
+    // ignore slots that contains only whitespace
+    for (var name$1 in slots) {
+      if (slots[name$1].every(isWhitespace)) {
+        delete slots[name$1];
       }
     }
+    return slots
   }
 
-  /*  */
+  function isWhitespace (node) {
+    return (node.isComment && !node.asyncFactory) || node.text === ' '
+  }
 
   /*  */
 
-  function initEvents (vm) {
-    vm._events = Object.create(null);
-    vm._hasHookEvent = false;
-    // init parent attached events
-    var listeners = vm.$options._parentListeners;
-    if (listeners) {
-      updateComponentListeners(vm, listeners);
+  function normalizeScopedSlots (
+    slots,
+    normalSlots
+  ) {
+    var res;
+    if (!slots) {
+      res = {};
+    } else if (slots._normalized) {
+      return slots
+    } else {
+      res = {};
+      for (var key in slots) {
+        if (slots[key] && key[0] !== '$') {
+          res[key] = normalizeScopedSlot(slots[key]);
+        }
+      }
+    }
+    // expose normal slots on scopedSlots
+    for (var key$1 in normalSlots) {
+      if (!(key$1 in res)) {
+        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+      }
     }
+    def(res, '_normalized', true);
+    def(res, '$stable', slots ? !!slots.$stable : true);
+    return res
   }
 
-  var target;
-
-  function add (event, fn) {
-    target.$on(event, fn);
+  function normalizeScopedSlot(fn) {
+    return function (scope) {
+      var res = fn(scope);
+      return res && typeof res === 'object' && !Array.isArray(res)
+        ? [res] // single vnode
+        : normalizeChildren(res)
+    }
   }
 
-  function remove$1 (event, fn) {
-    target.$off(event, fn);
+  function proxyNormalSlot(slots, key) {
+    return function () { return slots[key]; }
   }
 
-  function createOnceHandler (event, fn) {
-    var _target = target;
-    return function onceHandler () {
-      var res = fn.apply(null, arguments);
-      if (res !== null) {
-        _target.$off(event, onceHandler);
-      }
-    }
-  }
+  /*  */
 
-  function updateComponentListeners (
-    vm,
-    listeners,
-    oldListeners
+  /**
+   * Runtime helper for rendering v-for lists.
+   */
+  function renderList (
+    val,
+    render
   ) {
-    target = vm;
-    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-    target = undefined;
-  }
-
-  function eventsMixin (Vue) {
-    var hookRE = /^hook:/;
-    Vue.prototype.$on = function (event, fn) {
-      var vm = this;
-      if (Array.isArray(event)) {
-        for (var i = 0, l = event.length; i < l; i++) {
-          vm.$on(event[i], fn);
-        }
-      } else {
-        (vm._events[event] || (vm._events[event] = [])).push(fn);
-        // optimize hook:event cost by using a boolean flag marked at registration
-        // instead of a hash lookup
-        if (hookRE.test(event)) {
-          vm._hasHookEvent = true;
-        }
-      }
-      return vm
-    };
-
-    Vue.prototype.$once = function (event, fn) {
-      var vm = this;
-      function on () {
-        vm.$off(event, on);
-        fn.apply(vm, arguments);
-      }
-      on.fn = fn;
-      vm.$on(event, on);
-      return vm
-    };
-
-    Vue.prototype.$off = function (event, fn) {
-      var vm = this;
-      // all
-      if (!arguments.length) {
-        vm._events = Object.create(null);
-        return vm
-      }
-      // array of events
-      if (Array.isArray(event)) {
-        for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-          vm.$off(event[i$1], fn);
-        }
-        return vm
-      }
-      // specific event
-      var cbs = vm._events[event];
-      if (!cbs) {
-        return vm
-      }
-      if (!fn) {
-        vm._events[event] = null;
-        return vm
+    var ret, i, l, keys, key;
+    if (Array.isArray(val) || typeof val === 'string') {
+      ret = new Array(val.length);
+      for (i = 0, l = val.length; i < l; i++) {
+        ret[i] = render(val[i], i);
       }
-      // specific handler
-      var cb;
-      var i = cbs.length;
-      while (i--) {
-        cb = cbs[i];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i, 1);
-          break
-        }
+    } else if (typeof val === 'number') {
+      ret = new Array(val);
+      for (i = 0; i < val; i++) {
+        ret[i] = render(i + 1, i);
       }
-      return vm
-    };
-
-    Vue.prototype.$emit = function (event) {
-      var vm = this;
-      {
-        var lowerCaseEvent = event.toLowerCase();
-        if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-          tip(
-            "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-            (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-            "Note that HTML attributes are case-insensitive and you cannot use " +
-            "v-on to listen to camelCase events when using in-DOM templates. " +
-            "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-          );
+    } else if (isObject(val)) {
+      if (hasSymbol && val[Symbol.iterator]) {
+        ret = [];
+        var iterator = val[Symbol.iterator]();
+        var result = iterator.next();
+        while (!result.done) {
+          ret.push(render(result.value, ret.length));
+          result = iterator.next();
         }
-      }
-      var cbs = vm._events[event];
-      if (cbs) {
-        cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-        var args = toArray(arguments, 1);
-        var info = "event handler for \"" + event + "\"";
-        for (var i = 0, l = cbs.length; i < l; i++) {
-          invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      } else {
+        keys = Object.keys(val);
+        ret = new Array(keys.length);
+        for (i = 0, l = keys.length; i < l; i++) {
+          key = keys[i];
+          ret[i] = render(val[key], key, i);
         }
       }
-      return vm
-    };
+    }
+    if (!isDef(ret)) {
+      ret = [];
+    }
+    (ret)._isVList = true;
+    return ret
   }
 
   /*  */
 
-
-
   /**
-   * Runtime helper for resolving raw children VNodes into a slot object.
+   * Runtime helper for rendering <slot>
    */
-  function resolveSlots (
-    children,
-    context
+  function renderSlot (
+    name,
+    fallback,
+    props,
+    bindObject
   ) {
-    if (!children || !children.length) {
-      return {}
-    }
-    var slots = {};
-    for (var i = 0, l = children.length; i < l; i++) {
-      var child = children[i];
-      var data = child.data;
-      // remove slot attribute if the node is resolved as a Vue slot node
-      if (data && data.attrs && data.attrs.slot) {
-        delete data.attrs.slot;
-      }
-      // named slots should only be respected if the vnode was rendered in the
-      // same context.
-      if ((child.context === context || child.fnContext === context) &&
-        data && data.slot != null
-      ) {
-        var name = data.slot;
-        var slot = (slots[name] || (slots[name] = []));
-        if (child.tag === 'template') {
-          slot.push.apply(slot, child.children || []);
-        } else {
-          slot.push(child);
+    var scopedSlotFn = this.$scopedSlots[name];
+    var nodes;
+    if (scopedSlotFn) { // scoped slot
+      props = props || {};
+      if (bindObject) {
+        if (!isObject(bindObject)) {
+          warn(
+            'slot v-bind without argument expects an Object',
+            this
+          );
         }
-      } else {
-        (slots.default || (slots.default = [])).push(child);
-      }
-    }
-    // ignore slots that contains only whitespace
-    for (var name$1 in slots) {
-      if (slots[name$1].every(isWhitespace)) {
-        delete slots[name$1];
+        props = extend(extend({}, bindObject), props);
       }
+      nodes = scopedSlotFn(props) || fallback;
+    } else {
+      nodes = this.$slots[name] || fallback;
     }
-    return slots
-  }
-
-  function isWhitespace (node) {
-    return (node.isComment && !node.asyncFactory) || node.text === ' '
-  }
 
-  function resolveScopedSlots (
-    fns, // see flow/vnode
-    hasDynamicKeys,
-    res
-  ) {
-    res = res || { $stable: !hasDynamicKeys };
-    for (var i = 0; i < fns.length; i++) {
-      var slot = fns[i];
-      if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, hasDynamicKeys, res);
-      } else if (slot) {
-        res[slot.key] = slot.fn;
-      }
+    var target = props && props.slot;
+    if (target) {
+      return this.$createElement('template', { slot: target }, nodes)
+    } else {
+      return nodes
     }
-    return res
   }
 
   /*  */
 
-  var activeInstance = null;
-  var isUpdatingChildComponent = false;
-
-  function setActiveInstance(vm) {
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    return function () {
-      activeInstance = prevActiveInstance;
-    }
+  /**
+   * Runtime helper for resolving filters
+   */
+  function resolveFilter (id) {
+    return resolveAsset(this.$options, 'filters', id, true) || identity
   }
 
-  function initLifecycle (vm) {
-    var options = vm.$options;
+  /*  */
 
-    // locate first non-abstract parent
-    var parent = options.parent;
-    if (parent && !options.abstract) {
-      while (parent.$options.abstract && parent.$parent) {
-        parent = parent.$parent;
-      }
-      parent.$children.push(vm);
+  function isKeyNotMatch (expect, actual) {
+    if (Array.isArray(expect)) {
+      return expect.indexOf(actual) === -1
+    } else {
+      return expect !== actual
     }
+  }
 
-    vm.$parent = parent;
-    vm.$root = parent ? parent.$root : vm;
-
-    vm.$children = [];
-    vm.$refs = {};
-
-    vm._watcher = null;
-    vm._inactive = null;
-    vm._directInactive = false;
-    vm._isMounted = false;
-    vm._isDestroyed = false;
-    vm._isBeingDestroyed = false;
+  /**
+   * Runtime helper for checking keyCodes from config.
+   * exposed as Vue.prototype._k
+   * passing in eventKeyName as last argument separately for backwards compat
+   */
+  function checkKeyCodes (
+    eventKeyCode,
+    key,
+    builtInKeyCode,
+    eventKeyName,
+    builtInKeyName
+  ) {
+    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+      return isKeyNotMatch(builtInKeyName, eventKeyName)
+    } else if (mappedKeyCode) {
+      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+    } else if (eventKeyName) {
+      return hyphenate(eventKeyName) !== key
+    }
   }
 
-  function lifecycleMixin (Vue) {
-    Vue.prototype._update = function (vnode, hydrating) {
-      var vm = this;
-      var prevEl = vm.$el;
-      var prevVnode = vm._vnode;
-      var restoreActiveInstance = setActiveInstance(vm);
-      vm._vnode = vnode;
-      // Vue.prototype.__patch__ is injected in entry points
-      // based on the rendering backend used.
-      if (!prevVnode) {
-        // initial render
-        vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+  /*  */
+
+  /**
+   * Runtime helper for merging v-bind="object" into a VNode's data.
+   */
+  function bindObjectProps (
+    data,
+    tag,
+    value,
+    asProp,
+    isSync
+  ) {
+    if (value) {
+      if (!isObject(value)) {
+        warn(
+          'v-bind without argument expects an Object or Array value',
+          this
+        );
       } else {
-        // updates
-        vm.$el = vm.__patch__(prevVnode, vnode);
-      }
-      restoreActiveInstance();
-      // update __vue__ reference
-      if (prevEl) {
-        prevEl.__vue__ = null;
-      }
-      if (vm.$el) {
-        vm.$el.__vue__ = vm;
-      }
-      // if parent is an HOC, update its $el as well
-      if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-        vm.$parent.$el = vm.$el;
-      }
-      // updated hook is called by the scheduler to ensure that children are
-      // updated in a parent's updated hook.
-    };
+        if (Array.isArray(value)) {
+          value = toObject(value);
+        }
+        var hash;
+        var loop = function ( key ) {
+          if (
+            key === 'class' ||
+            key === 'style' ||
+            isReservedAttribute(key)
+          ) {
+            hash = data;
+          } else {
+            var type = data.attrs && data.attrs.type;
+            hash = asProp || config.mustUseProp(tag, type, key)
+              ? data.domProps || (data.domProps = {})
+              : data.attrs || (data.attrs = {});
+          }
+          var camelizedKey = camelize(key);
+          if (!(key in hash) && !(camelizedKey in hash)) {
+            hash[key] = value[key];
 
-    Vue.prototype.$forceUpdate = function () {
-      var vm = this;
-      if (vm._watcher) {
-        vm._watcher.update();
-      }
-    };
+            if (isSync) {
+              var on = data.on || (data.on = {});
+              on[("update:" + camelizedKey)] = function ($event) {
+                value[key] = $event;
+              };
+            }
+          }
+        };
 
-    Vue.prototype.$destroy = function () {
-      var vm = this;
-      if (vm._isBeingDestroyed) {
-        return
-      }
-      callHook(vm, 'beforeDestroy');
-      vm._isBeingDestroyed = true;
-      // remove self from parent
-      var parent = vm.$parent;
-      if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-        remove(parent.$children, vm);
-      }
-      // teardown watchers
-      if (vm._watcher) {
-        vm._watcher.teardown();
-      }
-      var i = vm._watchers.length;
-      while (i--) {
-        vm._watchers[i].teardown();
-      }
-      // remove reference from data ob
-      // frozen object may not have observer.
-      if (vm._data.__ob__) {
-        vm._data.__ob__.vmCount--;
-      }
-      // call the last hook...
-      vm._isDestroyed = true;
-      // invoke destroy hooks on current rendered tree
-      vm.__patch__(vm._vnode, null);
-      // fire destroyed hook
-      callHook(vm, 'destroyed');
-      // turn off all instance listeners.
-      vm.$off();
-      // remove __vue__ reference
-      if (vm.$el) {
-        vm.$el.__vue__ = null;
-      }
-      // release circular reference (#6759)
-      if (vm.$vnode) {
-        vm.$vnode.parent = null;
+        for (var key in value) loop( key );
       }
-    };
+    }
+    return data
   }
 
-  function mountComponent (
-    vm,
-    el,
-    hydrating
+  /*  */
+
+  /**
+   * Runtime helper for rendering static trees.
+   */
+  function renderStatic (
+    index,
+    isInFor
   ) {
-    vm.$el = el;
-    if (!vm.$options.render) {
-      vm.$options.render = createEmptyVNode;
-      {
-        /* istanbul ignore if */
-        if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-          vm.$options.el || el) {
-          warn(
-            'You are using the runtime-only build of Vue where the template ' +
-            'compiler is not available. Either pre-compile the templates into ' +
-            'render functions, or use the compiler-included build.',
-            vm
-          );
-        } else {
-          warn(
-            'Failed to mount component: template or render function not defined.',
-            vm
-          );
-        }
-      }
+    var cached = this._staticTrees || (this._staticTrees = []);
+    var tree = cached[index];
+    // if has already-rendered static tree and not inside v-for,
+    // we can reuse the same tree.
+    if (tree && !isInFor) {
+      return tree
     }
-    callHook(vm, 'beforeMount');
-
-    var updateComponent;
-    /* istanbul ignore if */
-    if (config.performance && mark) {
-      updateComponent = function () {
-        var name = vm._name;
-        var id = vm._uid;
-        var startTag = "vue-perf-start:" + id;
-        var endTag = "vue-perf-end:" + id;
+    // otherwise, render a fresh tree.
+    tree = cached[index] = this.$options.staticRenderFns[index].call(
+      this._renderProxy,
+      null,
+      this // for render fns generated for functional component templates
+    );
+    markStatic(tree, ("__static__" + index), false);
+    return tree
+  }
 
-        mark(startTag);
-        var vnode = vm._render();
-        mark(endTag);
-        measure(("vue " + name + " render"), startTag, endTag);
+  /**
+   * Runtime helper for v-once.
+   * Effectively it means marking the node as static with a unique key.
+   */
+  function markOnce (
+    tree,
+    index,
+    key
+  ) {
+    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+    return tree
+  }
 
-        mark(startTag);
-        vm._update(vnode, hydrating);
-        mark(endTag);
-        measure(("vue " + name + " patch"), startTag, endTag);
-      };
+  function markStatic (
+    tree,
+    key,
+    isOnce
+  ) {
+    if (Array.isArray(tree)) {
+      for (var i = 0; i < tree.length; i++) {
+        if (tree[i] && typeof tree[i] !== 'string') {
+          markStaticNode(tree[i], (key + "_" + i), isOnce);
+        }
+      }
     } else {
-      updateComponent = function () {
-        vm._update(vm._render(), hydrating);
-      };
+      markStaticNode(tree, key, isOnce);
     }
+  }
 
-    // we set this to vm._watcher inside the watcher's constructor
-    // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-    // component's mounted hook), which relies on vm._watcher being already defined
-    new Watcher(vm, updateComponent, noop, {
-      before: function before () {
-        if (vm._isMounted && !vm._isDestroyed) {
-          callHook(vm, 'beforeUpdate');
+  function markStaticNode (node, key, isOnce) {
+    node.isStatic = true;
+    node.key = key;
+    node.isOnce = isOnce;
+  }
+
+  /*  */
+
+  function bindObjectListeners (data, value) {
+    if (value) {
+      if (!isPlainObject(value)) {
+        warn(
+          'v-on without argument expects an Object value',
+          this
+        );
+      } else {
+        var on = data.on = data.on ? extend({}, data.on) : {};
+        for (var key in value) {
+          var existing = on[key];
+          var ours = value[key];
+          on[key] = existing ? [].concat(existing, ours) : ours;
         }
       }
-    }, true /* isRenderWatcher */);
-    hydrating = false;
-
-    // manually mounted instance, call mounted on self
-    // mounted is called for render-created child components in its inserted hook
-    if (vm.$vnode == null) {
-      vm._isMounted = true;
-      callHook(vm, 'mounted');
     }
-    return vm
+    return data
   }
 
-  function updateChildComponent (
-    vm,
-    propsData,
-    listeners,
-    parentVnode,
-    renderChildren
+  /*  */
+
+  function resolveScopedSlots (
+    fns, // see flow/vnode
+    hasDynamicKeys,
+    res
   ) {
-    {
-      isUpdatingChildComponent = true;
+    res = res || { $stable: !hasDynamicKeys };
+    for (var i = 0; i < fns.length; i++) {
+      var slot = fns[i];
+      if (Array.isArray(slot)) {
+        resolveScopedSlots(slot, hasDynamicKeys, res);
+      } else if (slot) {
+        res[slot.key] = slot.fn;
+      }
     }
+    return res
+  }
 
-    // determine whether component has slot children
-    // we need to do this before overwriting $options._renderChildren.
+  /*  */
 
-    // check if there are dynamic scopedSlots (hand-written or compiled but with
-    // dynamic slot names). Static scoped slots compiled from template has the
-    // "$stable" marker.
-    var hasDynamicScopedSlot = !!(
-      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-    );
-    // Any static slot children from the parent may have changed during parent's
-    // update. Dynamic scoped slots may also have changed. In such cases, a forced
-    // update is necessary to ensure correctness.
-    var needsForceUpdate = !!(
-      renderChildren ||               // has new static slots
-      vm.$options._renderChildren ||  // has old static slots
-      hasDynamicScopedSlot
-    );
+  function bindDynamicKeys (baseObj, values) {
+    for (var i = 0; i < values.length; i += 2) {
+      var key = values[i];
+      if (typeof key === 'string' && key) {
+        baseObj[values[i]] = values[i + 1];
+      } else if (key !== '' && key !== null) {
+        // null is a speical value for explicitly removing a binding
+        warn(
+          ("Invalid value for dynamic directive argument (expected string or null): " + key),
+          this
+        );
+      }
+    }
+    return baseObj
+  }
 
-    vm.$options._parentVnode = parentVnode;
-    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  // helper to dynamically append modifier runtime markers to event names.
+  // ensure only append when value is already string, otherwise it will be cast
+  // to string and cause the type check to miss.
+  function prependModifier (value, symbol) {
+    return typeof value === 'string' ? symbol + value : value
+  }
 
-    if (vm._vnode) { // update child tree's parent
-      vm._vnode.parent = parentVnode;
-    }
-    vm.$options._renderChildren = renderChildren;
+  /*  */
 
-    // update $attrs and $listeners hash
-    // these are also reactive so they may trigger child update if the child
-    // used them during render
-    vm.$attrs = parentVnode.data.attrs || emptyObject;
-    vm.$listeners = listeners || emptyObject;
+  function installRenderHelpers (target) {
+    target._o = markOnce;
+    target._n = toNumber;
+    target._s = toString;
+    target._l = renderList;
+    target._t = renderSlot;
+    target._q = looseEqual;
+    target._i = looseIndexOf;
+    target._m = renderStatic;
+    target._f = resolveFilter;
+    target._k = checkKeyCodes;
+    target._b = bindObjectProps;
+    target._v = createTextVNode;
+    target._e = createEmptyVNode;
+    target._u = resolveScopedSlots;
+    target._g = bindObjectListeners;
+    target._d = bindDynamicKeys;
+    target._p = prependModifier;
+  }
 
-    // update props
-    if (propsData && vm.$options.props) {
-      toggleObserving(false);
-      var props = vm._props;
-      var propKeys = vm.$options._propKeys || [];
-      for (var i = 0; i < propKeys.length; i++) {
-        var key = propKeys[i];
-        var propOptions = vm.$options.props; // wtf flow?
-        props[key] = validateProp(key, propOptions, propsData, vm);
-      }
-      toggleObserving(true);
-      // keep a copy of raw propsData
-      vm.$options.propsData = propsData;
+  /*  */
+
+  function FunctionalRenderContext (
+    data,
+    props,
+    children,
+    parent,
+    Ctor
+  ) {
+    var options = Ctor.options;
+    // ensure the createElement function in functional components
+    // gets a unique context - this is necessary for correct named slot check
+    var contextVm;
+    if (hasOwn(parent, '_uid')) {
+      contextVm = Object.create(parent);
+      // $flow-disable-line
+      contextVm._original = parent;
+    } else {
+      // the context vm passed in is a functional context as well.
+      // in this case we want to make sure we are able to get a hold to the
+      // real context instance.
+      contextVm = parent;
+      // $flow-disable-line
+      parent = parent._original;
     }
+    var isCompiled = isTrue(options._compiled);
+    var needNormalization = !isCompiled;
 
-    // update listeners
-    listeners = listeners || emptyObject;
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
+    this.data = data;
+    this.props = props;
+    this.children = children;
+    this.parent = parent;
+    this.listeners = data.on || emptyObject;
+    this.injections = resolveInject(options.inject, parent);
+    this.slots = function () { return resolveSlots(children, parent); };
 
-    // resolve slots + force update if has children
-    if (needsForceUpdate) {
-      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-      vm.$forceUpdate();
-    }
+    Object.defineProperty(this, 'scopedSlots', ({
+      enumerable: true,
+      get: function get () {
+        return normalizeScopedSlots(data.scopedSlots, this.slots())
+      }
+    }));
 
-    {
-      isUpdatingChildComponent = false;
+    // support for compiled functional template
+    if (isCompiled) {
+      // exposing $options for renderStatic()
+      this.$options = options;
+      // pre-resolve slots for renderSlot()
+      this.$slots = this.slots();
+      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
     }
-  }
 
-  function isInInactiveTree (vm) {
-    while (vm && (vm = vm.$parent)) {
-      if (vm._inactive) { return true }
+    if (options._scopeId) {
+      this._c = function (a, b, c, d) {
+        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+        if (vnode && !Array.isArray(vnode)) {
+          vnode.fnScopeId = options._scopeId;
+          vnode.fnContext = parent;
+        }
+        return vnode
+      };
+    } else {
+      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
     }
-    return false
   }
 
-  function activateChildComponent (vm, direct) {
-    if (direct) {
-      vm._directInactive = false;
-      if (isInInactiveTree(vm)) {
-        return
+  installRenderHelpers(FunctionalRenderContext.prototype);
+
+  function createFunctionalComponent (
+    Ctor,
+    propsData,
+    data,
+    contextVm,
+    children
+  ) {
+    var options = Ctor.options;
+    var props = {};
+    var propOptions = options.props;
+    if (isDef(propOptions)) {
+      for (var key in propOptions) {
+        props[key] = validateProp(key, propOptions, propsData || emptyObject);
       }
-    } else if (vm._directInactive) {
-      return
+    } else {
+      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+      if (isDef(data.props)) { mergeProps(props, data.props); }
     }
-    if (vm._inactive || vm._inactive === null) {
-      vm._inactive = false;
-      for (var i = 0; i < vm.$children.length; i++) {
-        activateChildComponent(vm.$children[i]);
+
+    var renderContext = new FunctionalRenderContext(
+      data,
+      props,
+      children,
+      contextVm,
+      Ctor
+    );
+
+    var vnode = options.render.call(null, renderContext._c, renderContext);
+
+    if (vnode instanceof VNode) {
+      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+    } else if (Array.isArray(vnode)) {
+      var vnodes = normalizeChildren(vnode) || [];
+      var res = new Array(vnodes.length);
+      for (var i = 0; i < vnodes.length; i++) {
+        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
       }
-      callHook(vm, 'activated');
+      return res
     }
   }
 
-  function deactivateChildComponent (vm, direct) {
-    if (direct) {
-      vm._directInactive = true;
-      if (isInInactiveTree(vm)) {
-        return
-      }
+  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+    // #7817 clone node before setting fnContext, otherwise if the node is reused
+    // (e.g. it was from a cached normal slot) the fnContext causes named slots
+    // that should not be matched to match.
+    var clone = cloneVNode(vnode);
+    clone.fnContext = contextVm;
+    clone.fnOptions = options;
+    {
+      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
     }
-    if (!vm._inactive) {
-      vm._inactive = true;
-      for (var i = 0; i < vm.$children.length; i++) {
-        deactivateChildComponent(vm.$children[i]);
-      }
-      callHook(vm, 'deactivated');
+    if (data.slot) {
+      (clone.data || (clone.data = {})).slot = data.slot;
     }
+    return clone
   }
 
-  function callHook (vm, hook) {
-    // #7573 disable dep collection when invoking lifecycle hooks
-    pushTarget();
-    var handlers = vm.$options[hook];
-    var info = hook + " hook";
-    if (handlers) {
-      for (var i = 0, j = handlers.length; i < j; i++) {
-        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
-      }
-    }
-    if (vm._hasHookEvent) {
-      vm.$emit('hook:' + hook);
+  function mergeProps (to, from) {
+    for (var key in from) {
+      to[camelize(key)] = from[key];
     }
-    popTarget();
   }
 
   /*  */
 
-  var MAX_UPDATE_COUNT = 100;
+  /*  */
 
-  var queue = [];
-  var activatedChildren = [];
-  var has = {};
-  var circular = {};
-  var waiting = false;
-  var flushing = false;
-  var index = 0;
+  /*  */
 
-  /**
-   * Reset the scheduler's state.
-   */
-  function resetSchedulerState () {
-    index = queue.length = activatedChildren.length = 0;
-    has = {};
-    {
-      circular = {};
-    }
-    waiting = flushing = false;
-  }
+  /*  */
 
-  // Async edge case #6566 requires saving the timestamp when event listeners are
-  // attached. However, calling performance.now() has a perf overhead especially
-  // if the page has thousands of event listeners. Instead, we take a timestamp
-  // every time the scheduler flushes and use that for all event listeners
-  // attached during that flush.
-  var currentFlushTimestamp = 0;
+  // inline hooks to be invoked on component VNodes during patch
+  var componentVNodeHooks = {
+    init: function init (vnode, hydrating) {
+      if (
+        vnode.componentInstance &&
+        !vnode.componentInstance._isDestroyed &&
+        vnode.data.keepAlive
+      ) {
+        // kept-alive components, treat as a patch
+        var mountedNode = vnode; // work around flow
+        componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      } else {
+        var child = vnode.componentInstance = createComponentInstanceForVnode(
+          vnode,
+          activeInstance
+        );
+        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+      }
+    },
 
-  // Async edge case fix requires storing an event listener's attach timestamp.
-  var getNow = Date.now;
+    prepatch: function prepatch (oldVnode, vnode) {
+      var options = vnode.componentOptions;
+      var child = vnode.componentInstance = oldVnode.componentInstance;
+      updateChildComponent(
+        child,
+        options.propsData, // updated props
+        options.listeners, // updated listeners
+        vnode, // new parent vnode
+        options.children // new children
+      );
+    },
 
-  // Determine what event timestamp the browser is using. Annoyingly, the
-  // timestamp can either be hi-res ( relative to poge load) or low-res
-  // (relative to UNIX epoch), so in order to compare time we have to use the
-  // same timestamp type when saving the flush timestamp.
-  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-    // if the low-res timestamp which is bigger than the event timestamp
-    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-    // and we need to use the hi-res version for event listeners as well.
-    getNow = function () { return performance.now(); };
-  }
+    insert: function insert (vnode) {
+      var context = vnode.context;
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isMounted) {
+        componentInstance._isMounted = true;
+        callHook(componentInstance, 'mounted');
+      }
+      if (vnode.data.keepAlive) {
+        if (context._isMounted) {
+          // vue-router#1212
+          // During updates, a kept-alive component's child components may
+          // change, so directly walking the tree here may call activated hooks
+          // on incorrect children. Instead we push them into a queue which will
+          // be processed after the whole patch process ended.
+          queueActivatedComponent(componentInstance);
+        } else {
+          activateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    },
 
-  /**
-   * Flush both queues and run the watchers.
-   */
-  function flushSchedulerQueue () {
-    currentFlushTimestamp = getNow();
-    flushing = true;
-    var watcher, id;
+    destroy: function destroy (vnode) {
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isDestroyed) {
+        if (!vnode.data.keepAlive) {
+          componentInstance.$destroy();
+        } else {
+          deactivateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    }
+  };
 
-    // Sort queue before flush.
-    // This ensures that:
-    // 1. Components are updated from parent to child. (because parent is always
-    //    created before the child)
-    // 2. A component's user watchers are run before its render watcher (because
-    //    user watchers are created before the render watcher)
-    // 3. If a component is destroyed during a parent component's watcher run,
-    //    its watchers can be skipped.
-    queue.sort(function (a, b) { return a.id - b.id; });
+  var hooksToMerge = Object.keys(componentVNodeHooks);
 
-    // do not cache length because more watchers might be pushed
-    // as we run existing watchers
-    for (index = 0; index < queue.length; index++) {
-      watcher = queue[index];
-      if (watcher.before) {
-        watcher.before();
+  function createComponent (
+    Ctor,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    if (isUndef(Ctor)) {
+      return
+    }
+
+    var baseCtor = context.$options._base;
+
+    // plain options object: turn it into a constructor
+    if (isObject(Ctor)) {
+      Ctor = baseCtor.extend(Ctor);
+    }
+
+    // if at this stage it's not a constructor or an async component factory,
+    // reject.
+    if (typeof Ctor !== 'function') {
+      {
+        warn(("Invalid Component definition: " + (String(Ctor))), context);
       }
-      id = watcher.id;
-      has[id] = null;
-      watcher.run();
-      // in dev build, check and stop circular updates.
-      if (has[id] != null) {
-        circular[id] = (circular[id] || 0) + 1;
-        if (circular[id] > MAX_UPDATE_COUNT) {
-          warn(
-            'You may have an infinite update loop ' + (
-              watcher.user
-                ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-                : "in a component render function."
-            ),
-            watcher.vm
-          );
-          break
-        }
+      return
+    }
+
+    // async component
+    var asyncFactory;
+    if (isUndef(Ctor.cid)) {
+      asyncFactory = Ctor;
+      Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
+      if (Ctor === undefined) {
+        // return a placeholder node for async component, which is rendered
+        // as a comment node but preserves all the raw information for the node.
+        // the information will be used for async server-rendering and hydration.
+        return createAsyncPlaceholder(
+          asyncFactory,
+          data,
+          context,
+          children,
+          tag
+        )
       }
     }
 
-    // keep copies of post queues before resetting state
-    var activatedQueue = activatedChildren.slice();
-    var updatedQueue = queue.slice();
+    data = data || {};
 
-    resetSchedulerState();
+    // resolve constructor options in case global mixins are applied after
+    // component constructor creation
+    resolveConstructorOptions(Ctor);
 
-    // call component updated and activated hooks
-    callActivatedHooks(activatedQueue);
-    callUpdatedHooks(updatedQueue);
+    // transform component v-model data into props & events
+    if (isDef(data.model)) {
+      transformModel(Ctor.options, data);
+    }
 
-    // devtool hook
-    /* istanbul ignore if */
-    if (devtools && config.devtools) {
-      devtools.emit('flush');
+    // extract props
+    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+    // functional component
+    if (isTrue(Ctor.options.functional)) {
+      return createFunctionalComponent(Ctor, propsData, data, context, children)
     }
-  }
 
-  function callUpdatedHooks (queue) {
-    var i = queue.length;
-    while (i--) {
-      var watcher = queue[i];
-      var vm = watcher.vm;
-      if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'updated');
+    // extract listeners, since these needs to be treated as
+    // child component listeners instead of DOM listeners
+    var listeners = data.on;
+    // replace with listeners with .native modifier
+    // so it gets processed during parent component patch.
+    data.on = data.nativeOn;
+
+    if (isTrue(Ctor.options.abstract)) {
+      // abstract components do not keep anything
+      // other than props & listeners & slot
+
+      // work around flow
+      var slot = data.slot;
+      data = {};
+      if (slot) {
+        data.slot = slot;
       }
     }
-  }
 
-  /**
-   * Queue a kept-alive component that was activated during patch.
-   * The queue will be processed after the entire tree has been patched.
-   */
-  function queueActivatedComponent (vm) {
-    // setting _inactive to false here so that a render function can
-    // rely on checking whether it's in an inactive tree (e.g. router-view)
-    vm._inactive = false;
-    activatedChildren.push(vm);
+    // install component management hooks onto the placeholder node
+    installComponentHooks(data);
+
+    // return a placeholder vnode
+    var name = Ctor.options.name || tag;
+    var vnode = new VNode(
+      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+      data, undefined, undefined, undefined, context,
+      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+      asyncFactory
+    );
+
+    return vnode
   }
 
-  function callActivatedHooks (queue) {
-    for (var i = 0; i < queue.length; i++) {
-      queue[i]._inactive = true;
-      activateChildComponent(queue[i], true /* true */);
+  function createComponentInstanceForVnode (
+    vnode, // we know it's MountedComponentVNode but flow doesn't
+    parent // activeInstance in lifecycle state
+  ) {
+    var options = {
+      _isComponent: true,
+      _parentVnode: vnode,
+      parent: parent
+    };
+    // check inline-template render functions
+    var inlineTemplate = vnode.data.inlineTemplate;
+    if (isDef(inlineTemplate)) {
+      options.render = inlineTemplate.render;
+      options.staticRenderFns = inlineTemplate.staticRenderFns;
     }
+    return new vnode.componentOptions.Ctor(options)
   }
 
-  /**
-   * Push a watcher into the watcher queue.
-   * Jobs with duplicate IDs will be skipped unless it's
-   * pushed when the queue is being flushed.
-   */
-  function queueWatcher (watcher) {
-    var id = watcher.id;
-    if (has[id] == null) {
-      has[id] = true;
-      if (!flushing) {
-        queue.push(watcher);
-      } else {
-        // if already flushing, splice the watcher based on its id
-        // if already past its id, it will be run next immediately.
-        var i = queue.length - 1;
-        while (i > index && queue[i].id > watcher.id) {
-          i--;
-        }
-        queue.splice(i + 1, 0, watcher);
+  function installComponentHooks (data) {
+    var hooks = data.hook || (data.hook = {});
+    for (var i = 0; i < hooksToMerge.length; i++) {
+      var key = hooksToMerge[i];
+      var existing = hooks[key];
+      var toMerge = componentVNodeHooks[key];
+      if (existing !== toMerge && !(existing && existing._merged)) {
+        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
       }
-      // queue the flush
-      if (!waiting) {
-        waiting = true;
+    }
+  }
 
-        if (!config.async) {
-          flushSchedulerQueue();
-          return
-        }
-        nextTick(flushSchedulerQueue);
+  function mergeHook$1 (f1, f2) {
+    var merged = function (a, b) {
+      // flow complains about extra args which is why we use any
+      f1(a, b);
+      f2(a, b);
+    };
+    merged._merged = true;
+    return merged
+  }
+
+  // transform component v-model info (value and callback) into
+  // prop and event handler respectively.
+  function transformModel (options, data) {
+    var prop = (options.model && options.model.prop) || 'value';
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
+    var on = data.on || (data.on = {});
+    var existing = on[event];
+    var callback = data.model.callback;
+    if (isDef(existing)) {
+      if (
+        Array.isArray(existing)
+          ? existing.indexOf(callback) === -1
+          : existing !== callback
+      ) {
+        on[event] = [callback].concat(existing);
       }
+    } else {
+      on[event] = callback;
     }
   }
 
   /*  */
 
+  var SIMPLE_NORMALIZE = 1;
+  var ALWAYS_NORMALIZE = 2;
 
+  // wrapper function for providing a more flexible interface
+  // without getting yelled at by flow
+  function createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType,
+    alwaysNormalize
+  ) {
+    if (Array.isArray(data) || isPrimitive(data)) {
+      normalizationType = children;
+      children = data;
+      data = undefined;
+    }
+    if (isTrue(alwaysNormalize)) {
+      normalizationType = ALWAYS_NORMALIZE;
+    }
+    return _createElement(context, tag, data, children, normalizationType)
+  }
 
-  var uid$1 = 0;
-
-  /**
-   * A watcher parses an expression, collects dependencies,
-   * and fires callback when the expression value changes.
-   * This is used for both the $watch() api and directives.
-   */
-  var Watcher = function Watcher (
-    vm,
-    expOrFn,
-    cb,
-    options,
-    isRenderWatcher
+  function _createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType
   ) {
-    this.vm = vm;
-    if (isRenderWatcher) {
-      vm._watcher = this;
+    if (isDef(data) && isDef((data).__ob__)) {
+      warn(
+        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+        'Always create fresh vnode data objects in each render!',
+        context
+      );
+      return createEmptyVNode()
     }
-    vm._watchers.push(this);
-    // options
-    if (options) {
-      this.deep = !!options.deep;
-      this.user = !!options.user;
-      this.lazy = !!options.lazy;
-      this.sync = !!options.sync;
-      this.before = options.before;
+    // object syntax in v-bind
+    if (isDef(data) && isDef(data.is)) {
+      tag = data.is;
+    }
+    if (!tag) {
+      // in case of component :is set to falsy value
+      return createEmptyVNode()
+    }
+    // warn against non-primitive key
+    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+    ) {
+      {
+        warn(
+          'Avoid using non-primitive value as key, ' +
+          'use string/number value instead.',
+          context
+        );
+      }
+    }
+    // support single function children as default scoped slot
+    if (Array.isArray(children) &&
+      typeof children[0] === 'function'
+    ) {
+      data = data || {};
+      data.scopedSlots = { default: children[0] };
+      children.length = 0;
+    }
+    if (normalizationType === ALWAYS_NORMALIZE) {
+      children = normalizeChildren(children);
+    } else if (normalizationType === SIMPLE_NORMALIZE) {
+      children = simpleNormalizeChildren(children);
+    }
+    var vnode, ns;
+    if (typeof tag === 'string') {
+      var Ctor;
+      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+      if (config.isReservedTag(tag)) {
+        // platform built-in elements
+        vnode = new VNode(
+          config.parsePlatformTagName(tag), data, children,
+          undefined, undefined, context
+        );
+      } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+        // component
+        vnode = createComponent(Ctor, data, context, children, tag);
+      } else {
+        // unknown or unlisted namespaced elements
+        // check at runtime because it may get assigned a namespace when its
+        // parent normalizes children
+        vnode = new VNode(
+          tag, data, children,
+          undefined, undefined, context
+        );
+      }
     } else {
-      this.deep = this.user = this.lazy = this.sync = false;
+      // direct component options / constructor
+      vnode = createComponent(tag, data, context, children);
     }
-    this.cb = cb;
-    this.id = ++uid$1; // uid for batching
-    this.active = true;
-    this.dirty = this.lazy; // for lazy watchers
-    this.deps = [];
-    this.newDeps = [];
-    this.depIds = new _Set();
-    this.newDepIds = new _Set();
-    this.expression = expOrFn.toString();
-    // parse expression for getter
-    if (typeof expOrFn === 'function') {
-      this.getter = expOrFn;
+    if (Array.isArray(vnode)) {
+      return vnode
+    } else if (isDef(vnode)) {
+      if (isDef(ns)) { applyNS(vnode, ns); }
+      if (isDef(data)) { registerDeepBindings(data); }
+      return vnode
     } else {
-      this.getter = parsePath(expOrFn);
-      if (!this.getter) {
-        this.getter = noop;
-        warn(
-          "Failed watching path: \"" + expOrFn + "\" " +
-          'Watcher only accepts simple dot-delimited paths. ' +
-          'For full control, use a function instead.',
-          vm
-        );
-      }
+      return createEmptyVNode()
     }
-    this.value = this.lazy
-      ? undefined
-      : this.get();
-  };
+  }
 
-  /**
-   * Evaluate the getter, and re-collect dependencies.
-   */
-  Watcher.prototype.get = function get () {
-    pushTarget(this);
-    var value;
-    var vm = this.vm;
-    try {
-      value = this.getter.call(vm, vm);
-    } catch (e) {
-      if (this.user) {
-        handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-      } else {
-        throw e
-      }
-    } finally {
-      // "touch" every property so they are all tracked as
-      // dependencies for deep watching
-      if (this.deep) {
-        traverse(value);
-      }
-      popTarget();
-      this.cleanupDeps();
+  function applyNS (vnode, ns, force) {
+    vnode.ns = ns;
+    if (vnode.tag === 'foreignObject') {
+      // use default namespace inside foreignObject
+      ns = undefined;
+      force = true;
     }
-    return value
-  };
-
-  /**
-   * Add a dependency to this directive.
-   */
-  Watcher.prototype.addDep = function addDep (dep) {
-    var id = dep.id;
-    if (!this.newDepIds.has(id)) {
-      this.newDepIds.add(id);
-      this.newDeps.push(dep);
-      if (!this.depIds.has(id)) {
-        dep.addSub(this);
+    if (isDef(vnode.children)) {
+      for (var i = 0, l = vnode.children.length; i < l; i++) {
+        var child = vnode.children[i];
+        if (isDef(child.tag) && (
+          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+          applyNS(child, ns, force);
+        }
       }
     }
-  };
+  }
 
-  /**
-   * Clean up for dependency collection.
-   */
-  Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var i = this.deps.length;
-    while (i--) {
-      var dep = this.deps[i];
-      if (!this.newDepIds.has(dep.id)) {
-        dep.removeSub(this);
-      }
+  // ref #5318
+  // necessary to ensure parent re-render when deep bindings like :style and
+  // :class are used on slot nodes
+  function registerDeepBindings (data) {
+    if (isObject(data.style)) {
+      traverse(data.style);
     }
-    var tmp = this.depIds;
-    this.depIds = this.newDepIds;
-    this.newDepIds = tmp;
-    this.newDepIds.clear();
-    tmp = this.deps;
-    this.deps = this.newDeps;
-    this.newDeps = tmp;
-    this.newDeps.length = 0;
-  };
+    if (isObject(data.class)) {
+      traverse(data.class);
+    }
+  }
+
+  /*  */
+
+  function initRender (vm) {
+    vm._vnode = null; // the root of the child tree
+    vm._staticTrees = null; // v-once cached trees
+    var options = vm.$options;
+    var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+    var renderContext = parentVnode && parentVnode.context;
+    vm.$slots = resolveSlots(options._renderChildren, renderContext);
+    vm.$scopedSlots = emptyObject;
+    // bind the createElement fn to this instance
+    // so that we get proper render context inside it.
+    // args order: tag, data, children, normalizationType, alwaysNormalize
+    // internal version is used by render functions compiled from templates
+    vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+    // normalization is always applied for the public version, used in
+    // user-written render functions.
+    vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+    // $attrs & $listeners are exposed for easier HOC creation.
+    // they need to be reactive so that HOCs using them are always updated
+    var parentData = parentVnode && parentVnode.data;
 
-  /**
-   * Subscriber interface.
-   * Will be called when a dependency changes.
-   */
-  Watcher.prototype.update = function update () {
     /* istanbul ignore else */
-    if (this.lazy) {
-      this.dirty = true;
-    } else if (this.sync) {
-      this.run();
-    } else {
-      queueWatcher(this);
+    {
+      defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+      }, true);
+      defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+      }, true);
     }
-  };
+  }
 
-  /**
-   * Scheduler job interface.
-   * Will be called by the scheduler.
-   */
-  Watcher.prototype.run = function run () {
-    if (this.active) {
-      var value = this.get();
-      if (
-        value !== this.value ||
-        // Deep watchers and watchers on Object/Arrays should fire even
-        // when the value is the same, because the value may
-        // have mutated.
-        isObject(value) ||
-        this.deep
-      ) {
-        // set new value
-        var oldValue = this.value;
-        this.value = value;
-        if (this.user) {
-          try {
-            this.cb.call(this.vm, value, oldValue);
-          } catch (e) {
-            handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-          }
-        } else {
-          this.cb.call(this.vm, value, oldValue);
-        }
-      }
-    }
-  };
+  var currentRenderingInstance = null;
 
-  /**
-   * Evaluate the value of the watcher.
-   * This only gets called for lazy watchers.
-   */
-  Watcher.prototype.evaluate = function evaluate () {
-    this.value = this.get();
-    this.dirty = false;
-  };
+  function renderMixin (Vue) {
+    // install runtime convenience helpers
+    installRenderHelpers(Vue.prototype);
 
-  /**
-   * Depend on all deps collected by this watcher.
-   */
-  Watcher.prototype.depend = function depend () {
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].depend();
-    }
-  };
+    Vue.prototype.$nextTick = function (fn) {
+      return nextTick(fn, this)
+    };
 
-  /**
-   * Remove self from all dependencies' subscriber list.
-   */
-  Watcher.prototype.teardown = function teardown () {
-    if (this.active) {
-      // remove self from vm's watcher list
-      // this is a somewhat expensive operation so we skip it
-      // if the vm is being destroyed.
-      if (!this.vm._isBeingDestroyed) {
-        remove(this.vm._watchers, this);
+    Vue.prototype._render = function () {
+      var vm = this;
+      var ref = vm.$options;
+      var render = ref.render;
+      var _parentVnode = ref._parentVnode;
+
+      if (_parentVnode) {
+        vm.$scopedSlots = normalizeScopedSlots(
+          _parentVnode.data.scopedSlots,
+          vm.$slots
+        );
+      }
+
+      // set parent vnode. this allows render functions to have access
+      // to the data on the placeholder node.
+      vm.$vnode = _parentVnode;
+      // render self
+      var vnode;
+      try {
+        // There's no need to maintain a stack becaues all render fns are called
+        // separately from one another. Nested component's render fns are called
+        // when parent component is patched.
+        currentRenderingInstance = vm;
+        vnode = render.call(vm._renderProxy, vm.$createElement);
+      } catch (e) {
+        handleError(e, vm, "render");
+        // return error render result,
+        // or previous vnode to prevent render error causing blank component
+        /* istanbul ignore else */
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
+      } finally {
+        currentRenderingInstance = null;
       }
-      var i = this.deps.length;
-      while (i--) {
-        this.deps[i].removeSub(this);
+      // if the returned array contains only a single node, allow it
+      if (Array.isArray(vnode) && vnode.length === 1) {
+        vnode = vnode[0];
       }
-      this.active = false;
-    }
-  };
+      // return empty vnode in case the render function errored out
+      if (!(vnode instanceof VNode)) {
+        if (Array.isArray(vnode)) {
+          warn(
+            'Multiple root nodes returned from render function. Render function ' +
+            'should return a single root node.',
+            vm
+          );
+        }
+        vnode = createEmptyVNode();
+      }
+      // set parent
+      vnode.parent = _parentVnode;
+      return vnode
+    };
+  }
 
   /*  */
 
-  var sharedPropertyDefinition = {
-    enumerable: true,
-    configurable: true,
-    get: noop,
-    set: noop
-  };
+  function ensureCtor (comp, base) {
+    if (
+      comp.__esModule ||
+      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+    ) {
+      comp = comp.default;
+    }
+    return isObject(comp)
+      ? base.extend(comp)
+      : comp
+  }
 
-  function proxy (target, sourceKey, key) {
-    sharedPropertyDefinition.get = function proxyGetter () {
-      return this[sourceKey][key]
-    };
-    sharedPropertyDefinition.set = function proxySetter (val) {
-      this[sourceKey][key] = val;
-    };
-    Object.defineProperty(target, key, sharedPropertyDefinition);
+  function createAsyncPlaceholder (
+    factory,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    var node = createEmptyVNode();
+    node.asyncFactory = factory;
+    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+    return node
   }
 
-  function initState (vm) {
-    vm._watchers = [];
-    var opts = vm.$options;
-    if (opts.props) { initProps(vm, opts.props); }
-    if (opts.methods) { initMethods(vm, opts.methods); }
-    if (opts.data) {
-      initData(vm);
-    } else {
-      observe(vm._data = {}, true /* asRootData */);
+  function resolveAsyncComponent (
+    factory,
+    baseCtor
+  ) {
+    if (isTrue(factory.error) && isDef(factory.errorComp)) {
+      return factory.errorComp
     }
-    if (opts.computed) { initComputed(vm, opts.computed); }
-    if (opts.watch && opts.watch !== nativeWatch) {
-      initWatch(vm, opts.watch);
+
+    if (isDef(factory.resolved)) {
+      return factory.resolved
     }
-  }
 
-  function initProps (vm, propsOptions) {
-    var propsData = vm.$options.propsData || {};
-    var props = vm._props = {};
-    // cache prop keys so that future props updates can iterate using Array
-    // instead of dynamic object key enumeration.
-    var keys = vm.$options._propKeys = [];
-    var isRoot = !vm.$parent;
-    // root instance props should be converted
-    if (!isRoot) {
-      toggleObserving(false);
+    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+      return factory.loadingComp
     }
-    var loop = function ( key ) {
-      keys.push(key);
-      var value = validateProp(key, propsOptions, propsData, vm);
-      /* istanbul ignore else */
-      {
-        var hyphenatedKey = hyphenate(key);
-        if (isReservedAttribute(hyphenatedKey) ||
-            config.isReservedAttr(hyphenatedKey)) {
-          warn(
-            ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-            vm
-          );
+
+    var owner = currentRenderingInstance;
+    if (isDef(factory.owners)) {
+      // already pending
+      factory.owners.push(owner);
+    } else {
+      var owners = factory.owners = [owner];
+      var sync = true;
+
+      var forceRender = function (renderCompleted) {
+        for (var i = 0, l = owners.length; i < l; i++) {
+          (owners[i]).$forceUpdate();
         }
-        defineReactive$$1(props, key, value, function () {
-          if (!isRoot && !isUpdatingChildComponent) {
-            warn(
-              "Avoid mutating a prop directly since the value will be " +
-              "overwritten whenever the parent component re-renders. " +
-              "Instead, use a data or computed property based on the prop's " +
-              "value. Prop being mutated: \"" + key + "\"",
-              vm
-            );
-          }
-        });
-      }
-      // static props are already proxied on the component's prototype
-      // during Vue.extend(). We only need to proxy props defined at
-      // instantiation here.
-      if (!(key in vm)) {
-        proxy(vm, "_props", key);
-      }
-    };
 
-    for (var key in propsOptions) loop( key );
-    toggleObserving(true);
-  }
+        if (renderCompleted) {
+          owners.length = 0;
+        }
+      };
 
-  function initData (vm) {
-    var data = vm.$options.data;
-    data = vm._data = typeof data === 'function'
-      ? getData(data, vm)
-      : data || {};
-    if (!isPlainObject(data)) {
-      data = {};
-      warn(
-        'data functions should return an object:\n' +
-        'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-        vm
-      );
-    }
-    // proxy data on instance
-    var keys = Object.keys(data);
-    var props = vm.$options.props;
-    var methods = vm.$options.methods;
-    var i = keys.length;
-    while (i--) {
-      var key = keys[i];
-      {
-        if (methods && hasOwn(methods, key)) {
-          warn(
-            ("Method \"" + key + "\" has already been defined as a data property."),
-            vm
-          );
+      var resolve = once(function (res) {
+        // cache resolved
+        factory.resolved = ensureCtor(res, baseCtor);
+        // invoke callbacks only if this is not a synchronous resolve
+        // (async resolves are shimmed as synchronous during SSR)
+        if (!sync) {
+          forceRender(true);
+        } else {
+          owners.length = 0;
         }
-      }
-      if (props && hasOwn(props, key)) {
+      });
+
+      var reject = once(function (reason) {
         warn(
-          "The data property \"" + key + "\" is already declared as a prop. " +
-          "Use prop default value instead.",
-          vm
+          "Failed to resolve async component: " + (String(factory)) +
+          (reason ? ("\nReason: " + reason) : '')
         );
-      } else if (!isReserved(key)) {
-        proxy(vm, "_data", key);
+        if (isDef(factory.errorComp)) {
+          factory.error = true;
+          forceRender(true);
+        }
+      });
+
+      var res = factory(resolve, reject);
+
+      if (isObject(res)) {
+        if (isPromise(res)) {
+          // () => Promise
+          if (isUndef(factory.resolved)) {
+            res.then(resolve, reject);
+          }
+        } else if (isPromise(res.component)) {
+          res.component.then(resolve, reject);
+
+          if (isDef(res.error)) {
+            factory.errorComp = ensureCtor(res.error, baseCtor);
+          }
+
+          if (isDef(res.loading)) {
+            factory.loadingComp = ensureCtor(res.loading, baseCtor);
+            if (res.delay === 0) {
+              factory.loading = true;
+            } else {
+              setTimeout(function () {
+                if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                  factory.loading = true;
+                  forceRender(false);
+                }
+              }, res.delay || 200);
+            }
+          }
+
+          if (isDef(res.timeout)) {
+            setTimeout(function () {
+              if (isUndef(factory.resolved)) {
+                reject(
+                  "timeout (" + (res.timeout) + "ms)"
+                );
+              }
+            }, res.timeout);
+          }
+        }
       }
-    }
-    // observe data
-    observe(data, true /* asRootData */);
-  }
 
-  function getData (data, vm) {
-    // #7573 disable dep collection when invoking data getters
-    pushTarget();
-    try {
-      return data.call(vm, vm)
-    } catch (e) {
-      handleError(e, vm, "data()");
-      return {}
-    } finally {
-      popTarget();
+      sync = false;
+      // return in case resolved synchronously
+      return factory.loading
+        ? factory.loadingComp
+        : factory.resolved
     }
   }
 
-  var computedWatcherOptions = { lazy: true };
-
-  function initComputed (vm, computed) {
-    // $flow-disable-line
-    var watchers = vm._computedWatchers = Object.create(null);
-    // computed properties are just getters during SSR
-    var isSSR = isServerRendering();
+  /*  */
 
-    for (var key in computed) {
-      var userDef = computed[key];
-      var getter = typeof userDef === 'function' ? userDef : userDef.get;
-      if (getter == null) {
-        warn(
-          ("Getter is missing for computed property \"" + key + "\"."),
-          vm
-        );
-      }
+  function isAsyncPlaceholder (node) {
+    return node.isComment && node.asyncFactory
+  }
 
-      if (!isSSR) {
-        // create internal watcher for the computed property.
-        watchers[key] = new Watcher(
-          vm,
-          getter || noop,
-          noop,
-          computedWatcherOptions
-        );
-      }
+  /*  */
 
-      // component-defined computed properties are already defined on the
-      // component prototype. We only need to define computed properties defined
-      // at instantiation here.
-      if (!(key in vm)) {
-        defineComputed(vm, key, userDef);
-      } else {
-        if (key in vm.$data) {
-          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-        } else if (vm.$options.props && key in vm.$options.props) {
-          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+  function getFirstComponentChild (children) {
+    if (Array.isArray(children)) {
+      for (var i = 0; i < children.length; i++) {
+        var c = children[i];
+        if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+          return c
         }
       }
     }
   }
 
-  function defineComputed (
-    target,
-    key,
-    userDef
-  ) {
-    var shouldCache = !isServerRendering();
-    if (typeof userDef === 'function') {
-      sharedPropertyDefinition.get = shouldCache
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef);
-      sharedPropertyDefinition.set = noop;
-    } else {
-      sharedPropertyDefinition.get = userDef.get
-        ? shouldCache && userDef.cache !== false
-          ? createComputedGetter(key)
-          : createGetterInvoker(userDef.get)
-        : noop;
-      sharedPropertyDefinition.set = userDef.set || noop;
-    }
-    if (sharedPropertyDefinition.set === noop) {
-      sharedPropertyDefinition.set = function () {
-        warn(
-          ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-          this
-        );
-      };
-    }
-    Object.defineProperty(target, key, sharedPropertyDefinition);
-  }
+  /*  */
 
-  function createComputedGetter (key) {
-    return function computedGetter () {
-      var watcher = this._computedWatchers && this._computedWatchers[key];
-      if (watcher) {
-        if (watcher.dirty) {
-          watcher.evaluate();
-        }
-        if (Dep.target) {
-          watcher.depend();
-        }
-        return watcher.value
-      }
+  /*  */
+
+  function initEvents (vm) {
+    vm._events = Object.create(null);
+    vm._hasHookEvent = false;
+    // init parent attached events
+    var listeners = vm.$options._parentListeners;
+    if (listeners) {
+      updateComponentListeners(vm, listeners);
     }
   }
 
-  function createGetterInvoker(fn) {
-    return function computedGetter () {
-      return fn.call(this, this)
-    }
+  var target;
+
+  function add (event, fn) {
+    target.$on(event, fn);
   }
 
-  function initMethods (vm, methods) {
-    var props = vm.$options.props;
-    for (var key in methods) {
-      {
-        if (typeof methods[key] !== 'function') {
-          warn(
-            "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-            "Did you reference the function correctly?",
-            vm
-          );
-        }
-        if (props && hasOwn(props, key)) {
-          warn(
-            ("Method \"" + key + "\" has already been defined as a prop."),
-            vm
-          );
-        }
-        if ((key in vm) && isReserved(key)) {
-          warn(
-            "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-            "Avoid defining component methods that start with _ or $."
-          );
-        }
-      }
-      vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-    }
+  function remove$1 (event, fn) {
+    target.$off(event, fn);
   }
 
-  function initWatch (vm, watch) {
-    for (var key in watch) {
-      var handler = watch[key];
-      if (Array.isArray(handler)) {
-        for (var i = 0; i < handler.length; i++) {
-          createWatcher(vm, key, handler[i]);
-        }
-      } else {
-        createWatcher(vm, key, handler);
+  function createOnceHandler (event, fn) {
+    var _target = target;
+    return function onceHandler () {
+      var res = fn.apply(null, arguments);
+      if (res !== null) {
+        _target.$off(event, onceHandler);
       }
     }
   }
 
-  function createWatcher (
+  function updateComponentListeners (
     vm,
-    expOrFn,
-    handler,
-    options
+    listeners,
+    oldListeners
   ) {
-    if (isPlainObject(handler)) {
-      options = handler;
-      handler = handler.handler;
-    }
-    if (typeof handler === 'string') {
-      handler = vm[handler];
-    }
-    return vm.$watch(expOrFn, handler, options)
+    target = vm;
+    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+    target = undefined;
   }
 
-  function stateMixin (Vue) {
-    // flow somehow has problems with directly declared definition object
-    // when using Object.defineProperty, so we have to procedurally build up
-    // the object here.
-    var dataDef = {};
-    dataDef.get = function () { return this._data };
-    var propsDef = {};
-    propsDef.get = function () { return this._props };
-    {
-      dataDef.set = function () {
-        warn(
-          'Avoid replacing instance root $data. ' +
-          'Use nested data properties instead.',
-          this
-        );
-      };
-      propsDef.set = function () {
-        warn("$props is readonly.", this);
-      };
-    }
-    Object.defineProperty(Vue.prototype, '$data', dataDef);
-    Object.defineProperty(Vue.prototype, '$props', propsDef);
+  function eventsMixin (Vue) {
+    var hookRE = /^hook:/;
+    Vue.prototype.$on = function (event, fn) {
+      var vm = this;
+      if (Array.isArray(event)) {
+        for (var i = 0, l = event.length; i < l; i++) {
+          vm.$on(event[i], fn);
+        }
+      } else {
+        (vm._events[event] || (vm._events[event] = [])).push(fn);
+        // optimize hook:event cost by using a boolean flag marked at registration
+        // instead of a hash lookup
+        if (hookRE.test(event)) {
+          vm._hasHookEvent = true;
+        }
+      }
+      return vm
+    };
 
-    Vue.prototype.$set = set;
-    Vue.prototype.$delete = del;
+    Vue.prototype.$once = function (event, fn) {
+      var vm = this;
+      function on () {
+        vm.$off(event, on);
+        fn.apply(vm, arguments);
+      }
+      on.fn = fn;
+      vm.$on(event, on);
+      return vm
+    };
+
+    Vue.prototype.$off = function (event, fn) {
+      var vm = this;
+      // all
+      if (!arguments.length) {
+        vm._events = Object.create(null);
+        return vm
+      }
+      // array of events
+      if (Array.isArray(event)) {
+        for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+          vm.$off(event[i$1], fn);
+        }
+        return vm
+      }
+      // specific event
+      var cbs = vm._events[event];
+      if (!cbs) {
+        return vm
+      }
+      if (!fn) {
+        vm._events[event] = null;
+        return vm
+      }
+      // specific handler
+      var cb;
+      var i = cbs.length;
+      while (i--) {
+        cb = cbs[i];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i, 1);
+          break
+        }
+      }
+      return vm
+    };
 
-    Vue.prototype.$watch = function (
-      expOrFn,
-      cb,
-      options
-    ) {
+    Vue.prototype.$emit = function (event) {
       var vm = this;
-      if (isPlainObject(cb)) {
-        return createWatcher(vm, expOrFn, cb, options)
-      }
-      options = options || {};
-      options.user = true;
-      var watcher = new Watcher(vm, expOrFn, cb, options);
-      if (options.immediate) {
-        try {
-          cb.call(vm, watcher.value);
-        } catch (error) {
-          handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      {
+        var lowerCaseEvent = event.toLowerCase();
+        if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+          tip(
+            "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+            (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+            "Note that HTML attributes are case-insensitive and you cannot use " +
+            "v-on to listen to camelCase events when using in-DOM templates. " +
+            "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+          );
         }
       }
-      return function unwatchFn () {
-        watcher.teardown();
+      var cbs = vm._events[event];
+      if (cbs) {
+        cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+        var args = toArray(arguments, 1);
+        var info = "event handler for \"" + event + "\"";
+        for (var i = 0, l = cbs.length; i < l; i++) {
+          invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+        }
       }
+      return vm
     };
   }
 
   /*  */
 
-  function initProvide (vm) {
-    var provide = vm.$options.provide;
-    if (provide) {
-      vm._provided = typeof provide === 'function'
-        ? provide.call(vm)
-        : provide;
-    }
-  }
+  var activeInstance = null;
+  var isUpdatingChildComponent = false;
 
-  function initInjections (vm) {
-    var result = resolveInject(vm.$options.inject, vm);
-    if (result) {
-      toggleObserving(false);
-      Object.keys(result).forEach(function (key) {
-        /* istanbul ignore else */
-        {
-          defineReactive$$1(vm, key, result[key], function () {
-            warn(
-              "Avoid mutating an injected value directly since the changes will be " +
-              "overwritten whenever the provided component re-renders. " +
-              "injection being mutated: \"" + key + "\"",
-              vm
-            );
-          });
-        }
-      });
-      toggleObserving(true);
+  function setActiveInstance(vm) {
+    var prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    return function () {
+      activeInstance = prevActiveInstance;
     }
   }
 
-  function resolveInject (inject, vm) {
-    if (inject) {
-      // inject is :any because flow is not smart enough to figure out cached
-      var result = Object.create(null);
-      var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
-        : Object.keys(inject);
+  function initLifecycle (vm) {
+    var options = vm.$options;
 
-      for (var i = 0; i < keys.length; i++) {
-        var key = keys[i];
-        // #6574 in case the inject object is observed...
-        if (key === '__ob__') { continue }
-        var provideKey = inject[key].from;
-        var source = vm;
-        while (source) {
-          if (source._provided && hasOwn(source._provided, provideKey)) {
-            result[key] = source._provided[provideKey];
-            break
-          }
-          source = source.$parent;
-        }
-        if (!source) {
-          if ('default' in inject[key]) {
-            var provideDefault = inject[key].default;
-            result[key] = typeof provideDefault === 'function'
-              ? provideDefault.call(vm)
-              : provideDefault;
-          } else {
-            warn(("Injection \"" + key + "\" not found"), vm);
-          }
-        }
+    // locate first non-abstract parent
+    var parent = options.parent;
+    if (parent && !options.abstract) {
+      while (parent.$options.abstract && parent.$parent) {
+        parent = parent.$parent;
       }
-      return result
+      parent.$children.push(vm);
     }
-  }
-
-  /*  */
 
-  function normalizeScopedSlots (
-    slots,
-    normalSlots
-  ) {
-    var res;
-    if (!slots) {
-      res = {};
-    } else if (slots._normalized) {
-      return slots
-    } else {
-      res = {};
-      for (var key in slots) {
-        if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-        }
-      }
-    }
-    // expose normal slots on scopedSlots
-    for (var key$1 in normalSlots) {
-      if (!(key$1 in res)) {
-        res[key$1] = proxyNormalSlot(normalSlots, key$1);
-      }
-    }
-    res._normalized = true;
-    res.$stable = slots ? slots.$stable : true;
-    return res
-  }
+    vm.$parent = parent;
+    vm.$root = parent ? parent.$root : vm;
 
-  function normalizeScopedSlot(normalSlots, key, fn) {
-    var normalized = function (scope) {
-      if ( scope === void 0 ) scope = {};
+    vm.$children = [];
+    vm.$refs = {};
 
-      var res = fn(scope);
-      return res && typeof res === 'object' && !Array.isArray(res)
-        ? [res] // single vnode
-        : normalizeChildren(res)
-    };
-    // proxy scoped slots on normal $slots
-    if (!hasOwn(normalSlots, key)) {
-      Object.defineProperty(normalSlots, key, {
-        get: normalized
-      });
-    }
-    return normalized
+    vm._watcher = null;
+    vm._inactive = null;
+    vm._directInactive = false;
+    vm._isMounted = false;
+    vm._isDestroyed = false;
+    vm._isBeingDestroyed = false;
   }
 
-  function proxyNormalSlot(slots, key) {
-    return function () { return slots[key]; }
-  }
+  function lifecycleMixin (Vue) {
+    Vue.prototype._update = function (vnode, hydrating) {
+      var vm = this;
+      var prevEl = vm.$el;
+      var prevVnode = vm._vnode;
+      var restoreActiveInstance = setActiveInstance(vm);
+      vm._vnode = vnode;
+      // Vue.prototype.__patch__ is injected in entry points
+      // based on the rendering backend used.
+      if (!prevVnode) {
+        // initial render
+        vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+      } else {
+        // updates
+        vm.$el = vm.__patch__(prevVnode, vnode);
+      }
+      restoreActiveInstance();
+      // update __vue__ reference
+      if (prevEl) {
+        prevEl.__vue__ = null;
+      }
+      if (vm.$el) {
+        vm.$el.__vue__ = vm;
+      }
+      // if parent is an HOC, update its $el as well
+      if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+        vm.$parent.$el = vm.$el;
+      }
+      // updated hook is called by the scheduler to ensure that children are
+      // updated in a parent's updated hook.
+    };
 
-  /*  */
+    Vue.prototype.$forceUpdate = function () {
+      var vm = this;
+      if (vm._watcher) {
+        vm._watcher.update();
+      }
+    };
 
-  /**
-   * Runtime helper for rendering v-for lists.
-   */
-  function renderList (
-    val,
-    render
-  ) {
-    var ret, i, l, keys, key;
-    if (Array.isArray(val) || typeof val === 'string') {
-      ret = new Array(val.length);
-      for (i = 0, l = val.length; i < l; i++) {
-        ret[i] = render(val[i], i);
+    Vue.prototype.$destroy = function () {
+      var vm = this;
+      if (vm._isBeingDestroyed) {
+        return
       }
-    } else if (typeof val === 'number') {
-      ret = new Array(val);
-      for (i = 0; i < val; i++) {
-        ret[i] = render(i + 1, i);
+      callHook(vm, 'beforeDestroy');
+      vm._isBeingDestroyed = true;
+      // remove self from parent
+      var parent = vm.$parent;
+      if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+        remove(parent.$children, vm);
       }
-    } else if (isObject(val)) {
-      if (hasSymbol && val[Symbol.iterator]) {
-        ret = [];
-        var iterator = val[Symbol.iterator]();
-        var result = iterator.next();
-        while (!result.done) {
-          ret.push(render(result.value, ret.length));
-          result = iterator.next();
-        }
-      } else {
-        keys = Object.keys(val);
-        ret = new Array(keys.length);
-        for (i = 0, l = keys.length; i < l; i++) {
-          key = keys[i];
-          ret[i] = render(val[key], key, i);
-        }
+      // teardown watchers
+      if (vm._watcher) {
+        vm._watcher.teardown();
+      }
+      var i = vm._watchers.length;
+      while (i--) {
+        vm._watchers[i].teardown();
+      }
+      // remove reference from data ob
+      // frozen object may not have observer.
+      if (vm._data.__ob__) {
+        vm._data.__ob__.vmCount--;
+      }
+      // call the last hook...
+      vm._isDestroyed = true;
+      // invoke destroy hooks on current rendered tree
+      vm.__patch__(vm._vnode, null);
+      // fire destroyed hook
+      callHook(vm, 'destroyed');
+      // turn off all instance listeners.
+      vm.$off();
+      // remove __vue__ reference
+      if (vm.$el) {
+        vm.$el.__vue__ = null;
       }
-    }
-    if (!isDef(ret)) {
-      ret = [];
-    }
-    (ret)._isVList = true;
-    return ret
+      // release circular reference (#6759)
+      if (vm.$vnode) {
+        vm.$vnode.parent = null;
+      }
+    };
   }
 
-  /*  */
-
-  /**
-   * Runtime helper for rendering <slot>
-   */
-  function renderSlot (
-    name,
-    fallback,
-    props,
-    bindObject
+  function mountComponent (
+    vm,
+    el,
+    hydrating
   ) {
-    var scopedSlotFn = this.$scopedSlots[name];
-    var nodes;
-    if (scopedSlotFn) { // scoped slot
-      props = props || {};
-      if (bindObject) {
-        if (!isObject(bindObject)) {
+    vm.$el = el;
+    if (!vm.$options.render) {
+      vm.$options.render = createEmptyVNode;
+      {
+        /* istanbul ignore if */
+        if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+          vm.$options.el || el) {
           warn(
-            'slot v-bind without argument expects an Object',
-            this
+            'You are using the runtime-only build of Vue where the template ' +
+            'compiler is not available. Either pre-compile the templates into ' +
+            'render functions, or use the compiler-included build.',
+            vm
+          );
+        } else {
+          warn(
+            'Failed to mount component: template or render function not defined.',
+            vm
           );
         }
-        props = extend(extend({}, bindObject), props);
       }
-      nodes = scopedSlotFn(props) || fallback;
-    } else {
-      nodes = this.$slots[name] || fallback;
     }
+    callHook(vm, 'beforeMount');
 
-    var target = props && props.slot;
-    if (target) {
-      return this.$createElement('template', { slot: target }, nodes)
-    } else {
-      return nodes
-    }
-  }
+    var updateComponent;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      updateComponent = function () {
+        var name = vm._name;
+        var id = vm._uid;
+        var startTag = "vue-perf-start:" + id;
+        var endTag = "vue-perf-end:" + id;
 
-  /*  */
+        mark(startTag);
+        var vnode = vm._render();
+        mark(endTag);
+        measure(("vue " + name + " render"), startTag, endTag);
 
-  /**
-   * Runtime helper for resolving filters
-   */
-  function resolveFilter (id) {
-    return resolveAsset(this.$options, 'filters', id, true) || identity
-  }
+        mark(startTag);
+        vm._update(vnode, hydrating);
+        mark(endTag);
+        measure(("vue " + name + " patch"), startTag, endTag);
+      };
+    } else {
+      updateComponent = function () {
+        vm._update(vm._render(), hydrating);
+      };
+    }
 
-  /*  */
+    // we set this to vm._watcher inside the watcher's constructor
+    // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+    // component's mounted hook), which relies on vm._watcher being already defined
+    new Watcher(vm, updateComponent, noop, {
+      before: function before () {
+        if (vm._isMounted && !vm._isDestroyed) {
+          callHook(vm, 'beforeUpdate');
+        }
+      }
+    }, true /* isRenderWatcher */);
+    hydrating = false;
 
-  function isKeyNotMatch (expect, actual) {
-    if (Array.isArray(expect)) {
-      return expect.indexOf(actual) === -1
-    } else {
-      return expect !== actual
+    // manually mounted instance, call mounted on self
+    // mounted is called for render-created child components in its inserted hook
+    if (vm.$vnode == null) {
+      vm._isMounted = true;
+      callHook(vm, 'mounted');
     }
+    return vm
   }
 
-  /**
-   * Runtime helper for checking keyCodes from config.
-   * exposed as Vue.prototype._k
-   * passing in eventKeyName as last argument separately for backwards compat
-   */
-  function checkKeyCodes (
-    eventKeyCode,
-    key,
-    builtInKeyCode,
-    eventKeyName,
-    builtInKeyName
+  function updateChildComponent (
+    vm,
+    propsData,
+    listeners,
+    parentVnode,
+    renderChildren
   ) {
-    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-      return isKeyNotMatch(builtInKeyName, eventKeyName)
-    } else if (mappedKeyCode) {
-      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-    } else if (eventKeyName) {
-      return hyphenate(eventKeyName) !== key
+    {
+      isUpdatingChildComponent = true;
     }
-  }
-
-  /*  */
 
-  /**
-   * Runtime helper for merging v-bind="object" into a VNode's data.
-   */
-  function bindObjectProps (
-    data,
-    tag,
-    value,
-    asProp,
-    isSync
-  ) {
-    if (value) {
-      if (!isObject(value)) {
-        warn(
-          'v-bind without argument expects an Object or Array value',
-          this
-        );
-      } else {
-        if (Array.isArray(value)) {
-          value = toObject(value);
-        }
-        var hash;
-        var loop = function ( key ) {
-          if (
-            key === 'class' ||
-            key === 'style' ||
-            isReservedAttribute(key)
-          ) {
-            hash = data;
-          } else {
-            var type = data.attrs && data.attrs.type;
-            hash = asProp || config.mustUseProp(tag, type, key)
-              ? data.domProps || (data.domProps = {})
-              : data.attrs || (data.attrs = {});
-          }
-          var camelizedKey = camelize(key);
-          if (!(key in hash) && !(camelizedKey in hash)) {
-            hash[key] = value[key];
+    // determine whether component has slot children
+    // we need to do this before overwriting $options._renderChildren.
 
-            if (isSync) {
-              var on = data.on || (data.on = {});
-              on[("update:" + camelizedKey)] = function ($event) {
-                value[key] = $event;
-              };
-            }
-          }
-        };
+    // check if there are dynamic scopedSlots (hand-written or compiled but with
+    // dynamic slot names). Static scoped slots compiled from template has the
+    // "$stable" marker.
+    var hasDynamicScopedSlot = !!(
+      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    );
 
-        for (var key in value) loop( key );
-      }
-    }
-    return data
-  }
+    // Any static slot children from the parent may have changed during parent's
+    // update. Dynamic scoped slots may also have changed. In such cases, a forced
+    // update is necessary to ensure correctness.
+    var needsForceUpdate = !!(
+      renderChildren ||               // has new static slots
+      vm.$options._renderChildren ||  // has old static slots
+      hasDynamicScopedSlot
+    );
 
-  /*  */
+    vm.$options._parentVnode = parentVnode;
+    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
 
-  /**
-   * Runtime helper for rendering static trees.
-   */
-  function renderStatic (
-    index,
-    isInFor
-  ) {
-    var cached = this._staticTrees || (this._staticTrees = []);
-    var tree = cached[index];
-    // if has already-rendered static tree and not inside v-for,
-    // we can reuse the same tree.
-    if (tree && !isInFor) {
-      return tree
+    if (vm._vnode) { // update child tree's parent
+      vm._vnode.parent = parentVnode;
     }
-    // otherwise, render a fresh tree.
-    tree = cached[index] = this.$options.staticRenderFns[index].call(
-      this._renderProxy,
-      null,
-      this // for render fns generated for functional component templates
-    );
-    markStatic(tree, ("__static__" + index), false);
-    return tree
-  }
+    vm.$options._renderChildren = renderChildren;
 
-  /**
-   * Runtime helper for v-once.
-   * Effectively it means marking the node as static with a unique key.
-   */
-  function markOnce (
-    tree,
-    index,
-    key
-  ) {
-    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-    return tree
-  }
+    // update $attrs and $listeners hash
+    // these are also reactive so they may trigger child update if the child
+    // used them during render
+    vm.$attrs = parentVnode.data.attrs || emptyObject;
+    vm.$listeners = listeners || emptyObject;
 
-  function markStatic (
-    tree,
-    key,
-    isOnce
-  ) {
-    if (Array.isArray(tree)) {
-      for (var i = 0; i < tree.length; i++) {
-        if (tree[i] && typeof tree[i] !== 'string') {
-          markStaticNode(tree[i], (key + "_" + i), isOnce);
-        }
+    // update props
+    if (propsData && vm.$options.props) {
+      toggleObserving(false);
+      var props = vm._props;
+      var propKeys = vm.$options._propKeys || [];
+      for (var i = 0; i < propKeys.length; i++) {
+        var key = propKeys[i];
+        var propOptions = vm.$options.props; // wtf flow?
+        props[key] = validateProp(key, propOptions, propsData, vm);
       }
-    } else {
-      markStaticNode(tree, key, isOnce);
+      toggleObserving(true);
+      // keep a copy of raw propsData
+      vm.$options.propsData = propsData;
     }
-  }
 
-  function markStaticNode (node, key, isOnce) {
-    node.isStatic = true;
-    node.key = key;
-    node.isOnce = isOnce;
+    // update listeners
+    listeners = listeners || emptyObject;
+    var oldListeners = vm.$options._parentListeners;
+    vm.$options._parentListeners = listeners;
+    updateComponentListeners(vm, listeners, oldListeners);
+
+    // resolve slots + force update if has children
+    if (needsForceUpdate) {
+      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+      vm.$forceUpdate();
+    }
+
+    {
+      isUpdatingChildComponent = false;
+    }
   }
 
-  /*  */
+  function isInInactiveTree (vm) {
+    while (vm && (vm = vm.$parent)) {
+      if (vm._inactive) { return true }
+    }
+    return false
+  }
 
-  function bindObjectListeners (data, value) {
-    if (value) {
-      if (!isPlainObject(value)) {
-        warn(
-          'v-on without argument expects an Object value',
-          this
-        );
-      } else {
-        var on = data.on = data.on ? extend({}, data.on) : {};
-        for (var key in value) {
-          var existing = on[key];
-          var ours = value[key];
-          on[key] = existing ? [].concat(existing, ours) : ours;
-        }
+  function activateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = false;
+      if (isInInactiveTree(vm)) {
+        return
       }
+    } else if (vm._directInactive) {
+      return
+    }
+    if (vm._inactive || vm._inactive === null) {
+      vm._inactive = false;
+      for (var i = 0; i < vm.$children.length; i++) {
+        activateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'activated');
     }
-    return data
   }
 
-  /*  */
-
-  function bindDynamicKeys (baseObj, values) {
-    for (var i = 0; i < values.length; i += 2) {
-      var key = values[i];
-      if (typeof key === 'string' && key) {
-        baseObj[values[i]] = values[i + 1];
-      } else if (key !== '' && key !== null) {
-        // null is a speical value for explicitly removing a binding
-        warn(
-          ("Invalid value for dynamic directive argument (expected string or null): " + key),
-          this
-        );
+  function deactivateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = true;
+      if (isInInactiveTree(vm)) {
+        return
       }
     }
-    return baseObj
+    if (!vm._inactive) {
+      vm._inactive = true;
+      for (var i = 0; i < vm.$children.length; i++) {
+        deactivateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'deactivated');
+    }
   }
 
-  // helper to dynamically append modifier runtime markers to event names.
-  // ensure only append when value is already string, otherwise it will be cast
-  // to string and cause the type check to miss.
-  function prependModifier (value, symbol) {
-    return typeof value === 'string' ? symbol + value : value
+  function callHook (vm, hook) {
+    // #7573 disable dep collection when invoking lifecycle hooks
+    pushTarget();
+    var handlers = vm.$options[hook];
+    var info = hook + " hook";
+    if (handlers) {
+      for (var i = 0, j = handlers.length; i < j; i++) {
+        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+      }
+    }
+    if (vm._hasHookEvent) {
+      vm.$emit('hook:' + hook);
+    }
+    popTarget();
   }
 
   /*  */
 
-  function installRenderHelpers (target) {
-    target._o = markOnce;
-    target._n = toNumber;
-    target._s = toString;
-    target._l = renderList;
-    target._t = renderSlot;
-    target._q = looseEqual;
-    target._i = looseIndexOf;
-    target._m = renderStatic;
-    target._f = resolveFilter;
-    target._k = checkKeyCodes;
-    target._b = bindObjectProps;
-    target._v = createTextVNode;
-    target._e = createEmptyVNode;
-    target._u = resolveScopedSlots;
-    target._g = bindObjectListeners;
-    target._d = bindDynamicKeys;
-    target._p = prependModifier;
-  }
+  var MAX_UPDATE_COUNT = 100;
 
-  /*  */
+  var queue = [];
+  var activatedChildren = [];
+  var has = {};
+  var circular = {};
+  var waiting = false;
+  var flushing = false;
+  var index = 0;
 
-  function FunctionalRenderContext (
-    data,
-    props,
-    children,
-    parent,
-    Ctor
-  ) {
-    var options = Ctor.options;
-    // ensure the createElement function in functional components
-    // gets a unique context - this is necessary for correct named slot check
-    var contextVm;
-    if (hasOwn(parent, '_uid')) {
-      contextVm = Object.create(parent);
-      // $flow-disable-line
-      contextVm._original = parent;
-    } else {
-      // the context vm passed in is a functional context as well.
-      // in this case we want to make sure we are able to get a hold to the
-      // real context instance.
-      contextVm = parent;
-      // $flow-disable-line
-      parent = parent._original;
+  /**
+   * Reset the scheduler's state.
+   */
+  function resetSchedulerState () {
+    index = queue.length = activatedChildren.length = 0;
+    has = {};
+    {
+      circular = {};
     }
-    var isCompiled = isTrue(options._compiled);
-    var needNormalization = !isCompiled;
+    waiting = flushing = false;
+  }
 
-    this.data = data;
-    this.props = props;
-    this.children = children;
-    this.parent = parent;
-    this.listeners = data.on || emptyObject;
-    this.injections = resolveInject(options.inject, parent);
-    this.slots = function () { return resolveSlots(children, parent); };
+  // Async edge case #6566 requires saving the timestamp when event listeners are
+  // attached. However, calling performance.now() has a perf overhead especially
+  // if the page has thousands of event listeners. Instead, we take a timestamp
+  // every time the scheduler flushes and use that for all event listeners
+  // attached during that flush.
+  var currentFlushTimestamp = 0;
 
-    Object.defineProperty(this, 'scopedSlots', ({
-      enumerable: true,
-      get: function get () {
-        return normalizeScopedSlots(data.scopedSlots, this.slots())
-      }
-    }));
+  // Async edge case fix requires storing an event listener's attach timestamp.
+  var getNow = Date.now;
 
-    // support for compiled functional template
-    if (isCompiled) {
-      // exposing $options for renderStatic()
-      this.$options = options;
-      // pre-resolve slots for renderSlot()
-      this.$slots = this.slots();
-      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
-    }
+  // Determine what event timestamp the browser is using. Annoyingly, the
+  // timestamp can either be hi-res (relative to page load) or low-res
+  // (relative to UNIX epoch), so in order to compare time we have to use the
+  // same timestamp type when saving the flush timestamp.
+  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+    // if the low-res timestamp which is bigger than the event timestamp
+    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listeners as well.
+    getNow = function () { return performance.now(); };
+  }
 
-    if (options._scopeId) {
-      this._c = function (a, b, c, d) {
-        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-        if (vnode && !Array.isArray(vnode)) {
-          vnode.fnScopeId = options._scopeId;
-          vnode.fnContext = parent;
+  /**
+   * Flush both queues and run the watchers.
+   */
+  function flushSchedulerQueue () {
+    currentFlushTimestamp = getNow();
+    flushing = true;
+    var watcher, id;
+
+    // Sort queue before flush.
+    // This ensures that:
+    // 1. Components are updated from parent to child. (because parent is always
+    //    created before the child)
+    // 2. A component's user watchers are run before its render watcher (because
+    //    user watchers are created before the render watcher)
+    // 3. If a component is destroyed during a parent component's watcher run,
+    //    its watchers can be skipped.
+    queue.sort(function (a, b) { return a.id - b.id; });
+
+    // do not cache length because more watchers might be pushed
+    // as we run existing watchers
+    for (index = 0; index < queue.length; index++) {
+      watcher = queue[index];
+      if (watcher.before) {
+        watcher.before();
+      }
+      id = watcher.id;
+      has[id] = null;
+      watcher.run();
+      // in dev build, check and stop circular updates.
+      if (has[id] != null) {
+        circular[id] = (circular[id] || 0) + 1;
+        if (circular[id] > MAX_UPDATE_COUNT) {
+          warn(
+            'You may have an infinite update loop ' + (
+              watcher.user
+                ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+                : "in a component render function."
+            ),
+            watcher.vm
+          );
+          break
         }
-        return vnode
-      };
-    } else {
-      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+      }
     }
-  }
 
-  installRenderHelpers(FunctionalRenderContext.prototype);
+    // keep copies of post queues before resetting state
+    var activatedQueue = activatedChildren.slice();
+    var updatedQueue = queue.slice();
 
-  function createFunctionalComponent (
-    Ctor,
-    propsData,
-    data,
-    contextVm,
-    children
-  ) {
-    var options = Ctor.options;
-    var props = {};
-    var propOptions = options.props;
-    if (isDef(propOptions)) {
-      for (var key in propOptions) {
-        props[key] = validateProp(key, propOptions, propsData || emptyObject);
-      }
-    } else {
-      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-      if (isDef(data.props)) { mergeProps(props, data.props); }
-    }
+    resetSchedulerState();
 
-    var renderContext = new FunctionalRenderContext(
-      data,
-      props,
-      children,
-      contextVm,
-      Ctor
-    );
+    // call component updated and activated hooks
+    callActivatedHooks(activatedQueue);
+    callUpdatedHooks(updatedQueue);
 
-    var vnode = options.render.call(null, renderContext._c, renderContext);
+    // devtool hook
+    /* istanbul ignore if */
+    if (devtools && config.devtools) {
+      devtools.emit('flush');
+    }
+  }
 
-    if (vnode instanceof VNode) {
-      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-    } else if (Array.isArray(vnode)) {
-      var vnodes = normalizeChildren(vnode) || [];
-      var res = new Array(vnodes.length);
-      for (var i = 0; i < vnodes.length; i++) {
-        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+  function callUpdatedHooks (queue) {
+    var i = queue.length;
+    while (i--) {
+      var watcher = queue[i];
+      var vm = watcher.vm;
+      if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'updated');
       }
-      return res
     }
   }
 
-  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-    // #7817 clone node before setting fnContext, otherwise if the node is reused
-    // (e.g. it was from a cached normal slot) the fnContext causes named slots
-    // that should not be matched to match.
-    var clone = cloneVNode(vnode);
-    clone.fnContext = contextVm;
-    clone.fnOptions = options;
-    {
-      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-    }
-    if (data.slot) {
-      (clone.data || (clone.data = {})).slot = data.slot;
+  /**
+   * Queue a kept-alive component that was activated during patch.
+   * The queue will be processed after the entire tree has been patched.
+   */
+  function queueActivatedComponent (vm) {
+    // setting _inactive to false here so that a render function can
+    // rely on checking whether it's in an inactive tree (e.g. router-view)
+    vm._inactive = false;
+    activatedChildren.push(vm);
+  }
+
+  function callActivatedHooks (queue) {
+    for (var i = 0; i < queue.length; i++) {
+      queue[i]._inactive = true;
+      activateChildComponent(queue[i], true /* true */);
     }
-    return clone
   }
 
-  function mergeProps (to, from) {
-    for (var key in from) {
-      to[camelize(key)] = from[key];
+  /**
+   * Push a watcher into the watcher queue.
+   * Jobs with duplicate IDs will be skipped unless it's
+   * pushed when the queue is being flushed.
+   */
+  function queueWatcher (watcher) {
+    var id = watcher.id;
+    if (has[id] == null) {
+      has[id] = true;
+      if (!flushing) {
+        queue.push(watcher);
+      } else {
+        // if already flushing, splice the watcher based on its id
+        // if already past its id, it will be run next immediately.
+        var i = queue.length - 1;
+        while (i > index && queue[i].id > watcher.id) {
+          i--;
+        }
+        queue.splice(i + 1, 0, watcher);
+      }
+      // queue the flush
+      if (!waiting) {
+        waiting = true;
+
+        if (!config.async) {
+          flushSchedulerQueue();
+          return
+        }
+        nextTick(flushSchedulerQueue);
+      }
     }
   }
 
   /*  */
 
-  /*  */
 
-  /*  */
 
-  /*  */
+  var uid$2 = 0;
 
-  // inline hooks to be invoked on component VNodes during patch
-  var componentVNodeHooks = {
-    init: function init (vnode, hydrating) {
-      if (
-        vnode.componentInstance &&
-        !vnode.componentInstance._isDestroyed &&
-        vnode.data.keepAlive
-      ) {
-        // kept-alive components, treat as a patch
-        var mountedNode = vnode; // work around flow
-        componentVNodeHooks.prepatch(mountedNode, mountedNode);
-      } else {
-        var child = vnode.componentInstance = createComponentInstanceForVnode(
-          vnode,
-          activeInstance
+  /**
+   * A watcher parses an expression, collects dependencies,
+   * and fires callback when the expression value changes.
+   * This is used for both the $watch() api and directives.
+   */
+  var Watcher = function Watcher (
+    vm,
+    expOrFn,
+    cb,
+    options,
+    isRenderWatcher
+  ) {
+    this.vm = vm;
+    if (isRenderWatcher) {
+      vm._watcher = this;
+    }
+    vm._watchers.push(this);
+    // options
+    if (options) {
+      this.deep = !!options.deep;
+      this.user = !!options.user;
+      this.lazy = !!options.lazy;
+      this.sync = !!options.sync;
+      this.before = options.before;
+    } else {
+      this.deep = this.user = this.lazy = this.sync = false;
+    }
+    this.cb = cb;
+    this.id = ++uid$2; // uid for batching
+    this.active = true;
+    this.dirty = this.lazy; // for lazy watchers
+    this.deps = [];
+    this.newDeps = [];
+    this.depIds = new _Set();
+    this.newDepIds = new _Set();
+    this.expression = expOrFn.toString();
+    // parse expression for getter
+    if (typeof expOrFn === 'function') {
+      this.getter = expOrFn;
+    } else {
+      this.getter = parsePath(expOrFn);
+      if (!this.getter) {
+        this.getter = noop;
+        warn(
+          "Failed watching path: \"" + expOrFn + "\" " +
+          'Watcher only accepts simple dot-delimited paths. ' +
+          'For full control, use a function instead.',
+          vm
         );
-        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
       }
-    },
-
-    prepatch: function prepatch (oldVnode, vnode) {
-      var options = vnode.componentOptions;
-      var child = vnode.componentInstance = oldVnode.componentInstance;
-      updateChildComponent(
-        child,
-        options.propsData, // updated props
-        options.listeners, // updated listeners
-        vnode, // new parent vnode
-        options.children // new children
-      );
-    },
+    }
+    this.value = this.lazy
+      ? undefined
+      : this.get();
+  };
 
-    insert: function insert (vnode) {
-      var context = vnode.context;
-      var componentInstance = vnode.componentInstance;
-      if (!componentInstance._isMounted) {
-        componentInstance._isMounted = true;
-        callHook(componentInstance, 'mounted');
-      }
-      if (vnode.data.keepAlive) {
-        if (context._isMounted) {
-          // vue-router#1212
-          // During updates, a kept-alive component's child components may
-          // change, so directly walking the tree here may call activated hooks
-          // on incorrect children. Instead we push them into a queue which will
-          // be processed after the whole patch process ended.
-          queueActivatedComponent(componentInstance);
-        } else {
-          activateChildComponent(componentInstance, true /* direct */);
-        }
+  /**
+   * Evaluate the getter, and re-collect dependencies.
+   */
+  Watcher.prototype.get = function get () {
+    pushTarget(this);
+    var value;
+    var vm = this.vm;
+    try {
+      value = this.getter.call(vm, vm);
+    } catch (e) {
+      if (this.user) {
+        handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+      } else {
+        throw e
       }
-    },
-
-    destroy: function destroy (vnode) {
-      var componentInstance = vnode.componentInstance;
-      if (!componentInstance._isDestroyed) {
-        if (!vnode.data.keepAlive) {
-          componentInstance.$destroy();
-        } else {
-          deactivateChildComponent(componentInstance, true /* direct */);
-        }
+    } finally {
+      // "touch" every property so they are all tracked as
+      // dependencies for deep watching
+      if (this.deep) {
+        traverse(value);
       }
+      popTarget();
+      this.cleanupDeps();
     }
+    return value
   };
 
-  var hooksToMerge = Object.keys(componentVNodeHooks);
-
-  function createComponent (
-    Ctor,
-    data,
-    context,
-    children,
-    tag
-  ) {
-    if (isUndef(Ctor)) {
-      return
-    }
-
-    var baseCtor = context.$options._base;
-
-    // plain options object: turn it into a constructor
-    if (isObject(Ctor)) {
-      Ctor = baseCtor.extend(Ctor);
-    }
-
-    // if at this stage it's not a constructor or an async component factory,
-    // reject.
-    if (typeof Ctor !== 'function') {
-      {
-        warn(("Invalid Component definition: " + (String(Ctor))), context);
+  /**
+   * Add a dependency to this directive.
+   */
+  Watcher.prototype.addDep = function addDep (dep) {
+    var id = dep.id;
+    if (!this.newDepIds.has(id)) {
+      this.newDepIds.add(id);
+      this.newDeps.push(dep);
+      if (!this.depIds.has(id)) {
+        dep.addSub(this);
       }
-      return
     }
+  };
 
-    // async component
-    var asyncFactory;
-    if (isUndef(Ctor.cid)) {
-      asyncFactory = Ctor;
-      Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-      if (Ctor === undefined) {
-        // return a placeholder node for async component, which is rendered
-        // as a comment node but preserves all the raw information for the node.
-        // the information will be used for async server-rendering and hydration.
-        return createAsyncPlaceholder(
-          asyncFactory,
-          data,
-          context,
-          children,
-          tag
-        )
+  /**
+   * Clean up for dependency collection.
+   */
+  Watcher.prototype.cleanupDeps = function cleanupDeps () {
+    var i = this.deps.length;
+    while (i--) {
+      var dep = this.deps[i];
+      if (!this.newDepIds.has(dep.id)) {
+        dep.removeSub(this);
       }
     }
+    var tmp = this.depIds;
+    this.depIds = this.newDepIds;
+    this.newDepIds = tmp;
+    this.newDepIds.clear();
+    tmp = this.deps;
+    this.deps = this.newDeps;
+    this.newDeps = tmp;
+    this.newDeps.length = 0;
+  };
 
-    data = data || {};
-
-    // resolve constructor options in case global mixins are applied after
-    // component constructor creation
-    resolveConstructorOptions(Ctor);
-
-    // transform component v-model data into props & events
-    if (isDef(data.model)) {
-      transformModel(Ctor.options, data);
-    }
-
-    // extract props
-    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-    // functional component
-    if (isTrue(Ctor.options.functional)) {
-      return createFunctionalComponent(Ctor, propsData, data, context, children)
+  /**
+   * Subscriber interface.
+   * Will be called when a dependency changes.
+   */
+  Watcher.prototype.update = function update () {
+    /* istanbul ignore else */
+    if (this.lazy) {
+      this.dirty = true;
+    } else if (this.sync) {
+      this.run();
+    } else {
+      queueWatcher(this);
     }
+  };
 
-    // extract listeners, since these needs to be treated as
-    // child component listeners instead of DOM listeners
-    var listeners = data.on;
-    // replace with listeners with .native modifier
-    // so it gets processed during parent component patch.
-    data.on = data.nativeOn;
-
-    if (isTrue(Ctor.options.abstract)) {
-      // abstract components do not keep anything
-      // other than props & listeners & slot
-
-      // work around flow
-      var slot = data.slot;
-      data = {};
-      if (slot) {
-        data.slot = slot;
+  /**
+   * Scheduler job interface.
+   * Will be called by the scheduler.
+   */
+  Watcher.prototype.run = function run () {
+    if (this.active) {
+      var value = this.get();
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        var oldValue = this.value;
+        this.value = value;
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue);
+          } catch (e) {
+            handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue);
+        }
       }
     }
+  };
 
-    // install component management hooks onto the placeholder node
-    installComponentHooks(data);
-
-    // return a placeholder vnode
-    var name = Ctor.options.name || tag;
-    var vnode = new VNode(
-      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-      data, undefined, undefined, undefined, context,
-      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-      asyncFactory
-    );
-
-    return vnode
-  }
-
-  function createComponentInstanceForVnode (
-    vnode, // we know it's MountedComponentVNode but flow doesn't
-    parent // activeInstance in lifecycle state
-  ) {
-    var options = {
-      _isComponent: true,
-      _parentVnode: vnode,
-      parent: parent
-    };
-    // check inline-template render functions
-    var inlineTemplate = vnode.data.inlineTemplate;
-    if (isDef(inlineTemplate)) {
-      options.render = inlineTemplate.render;
-      options.staticRenderFns = inlineTemplate.staticRenderFns;
-    }
-    return new vnode.componentOptions.Ctor(options)
-  }
+  /**
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
+   */
+  Watcher.prototype.evaluate = function evaluate () {
+    this.value = this.get();
+    this.dirty = false;
+  };
 
-  function installComponentHooks (data) {
-    var hooks = data.hook || (data.hook = {});
-    for (var i = 0; i < hooksToMerge.length; i++) {
-      var key = hooksToMerge[i];
-      var existing = hooks[key];
-      var toMerge = componentVNodeHooks[key];
-      if (existing !== toMerge && !(existing && existing._merged)) {
-        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-      }
+  /**
+   * Depend on all deps collected by this watcher.
+   */
+  Watcher.prototype.depend = function depend () {
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].depend();
     }
-  }
-
-  function mergeHook$1 (f1, f2) {
-    var merged = function (a, b) {
-      // flow complains about extra args which is why we use any
-      f1(a, b);
-      f2(a, b);
-    };
-    merged._merged = true;
-    return merged
-  }
+  };
 
-  // transform component v-model info (value and callback) into
-  // prop and event handler respectively.
-  function transformModel (options, data) {
-    var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input'
-    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
-    var on = data.on || (data.on = {});
-    var existing = on[event];
-    var callback = data.model.callback;
-    if (isDef(existing)) {
-      if (
-        Array.isArray(existing)
-          ? existing.indexOf(callback) === -1
-          : existing !== callback
-      ) {
-        on[event] = [callback].concat(existing);
+  /**
+   * Remove self from all dependencies' subscriber list.
+   */
+  Watcher.prototype.teardown = function teardown () {
+    if (this.active) {
+      // remove self from vm's watcher list
+      // this is a somewhat expensive operation so we skip it
+      // if the vm is being destroyed.
+      if (!this.vm._isBeingDestroyed) {
+        remove(this.vm._watchers, this);
       }
-    } else {
-      on[event] = callback;
+      var i = this.deps.length;
+      while (i--) {
+        this.deps[i].removeSub(this);
+      }
+      this.active = false;
     }
-  }
+  };
 
   /*  */
 
-  var SIMPLE_NORMALIZE = 1;
-  var ALWAYS_NORMALIZE = 2;
+  var sharedPropertyDefinition = {
+    enumerable: true,
+    configurable: true,
+    get: noop,
+    set: noop
+  };
 
-  // wrapper function for providing a more flexible interface
-  // without getting yelled at by flow
-  function createElement (
-    context,
-    tag,
-    data,
-    children,
-    normalizationType,
-    alwaysNormalize
-  ) {
-    if (Array.isArray(data) || isPrimitive(data)) {
-      normalizationType = children;
-      children = data;
-      data = undefined;
+  function proxy (target, sourceKey, key) {
+    sharedPropertyDefinition.get = function proxyGetter () {
+      return this[sourceKey][key]
+    };
+    sharedPropertyDefinition.set = function proxySetter (val) {
+      this[sourceKey][key] = val;
+    };
+    Object.defineProperty(target, key, sharedPropertyDefinition);
+  }
+
+  function initState (vm) {
+    vm._watchers = [];
+    var opts = vm.$options;
+    if (opts.props) { initProps(vm, opts.props); }
+    if (opts.methods) { initMethods(vm, opts.methods); }
+    if (opts.data) {
+      initData(vm);
+    } else {
+      observe(vm._data = {}, true /* asRootData */);
     }
-    if (isTrue(alwaysNormalize)) {
-      normalizationType = ALWAYS_NORMALIZE;
+    if (opts.computed) { initComputed(vm, opts.computed); }
+    if (opts.watch && opts.watch !== nativeWatch) {
+      initWatch(vm, opts.watch);
     }
-    return _createElement(context, tag, data, children, normalizationType)
   }
 
-  function _createElement (
-    context,
-    tag,
-    data,
-    children,
-    normalizationType
-  ) {
-    if (isDef(data) && isDef((data).__ob__)) {
+  function initProps (vm, propsOptions) {
+    var propsData = vm.$options.propsData || {};
+    var props = vm._props = {};
+    // cache prop keys so that future props updates can iterate using Array
+    // instead of dynamic object key enumeration.
+    var keys = vm.$options._propKeys = [];
+    var isRoot = !vm.$parent;
+    // root instance props should be converted
+    if (!isRoot) {
+      toggleObserving(false);
+    }
+    var loop = function ( key ) {
+      keys.push(key);
+      var value = validateProp(key, propsOptions, propsData, vm);
+      /* istanbul ignore else */
+      {
+        var hyphenatedKey = hyphenate(key);
+        if (isReservedAttribute(hyphenatedKey) ||
+            config.isReservedAttr(hyphenatedKey)) {
+          warn(
+            ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+            vm
+          );
+        }
+        defineReactive$$1(props, key, value, function () {
+          if (!isRoot && !isUpdatingChildComponent) {
+            warn(
+              "Avoid mutating a prop directly since the value will be " +
+              "overwritten whenever the parent component re-renders. " +
+              "Instead, use a data or computed property based on the prop's " +
+              "value. Prop being mutated: \"" + key + "\"",
+              vm
+            );
+          }
+        });
+      }
+      // static props are already proxied on the component's prototype
+      // during Vue.extend(). We only need to proxy props defined at
+      // instantiation here.
+      if (!(key in vm)) {
+        proxy(vm, "_props", key);
+      }
+    };
+
+    for (var key in propsOptions) loop( key );
+    toggleObserving(true);
+  }
+
+  function initData (vm) {
+    var data = vm.$options.data;
+    data = vm._data = typeof data === 'function'
+      ? getData(data, vm)
+      : data || {};
+    if (!isPlainObject(data)) {
+      data = {};
       warn(
-        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-        'Always create fresh vnode data objects in each render!',
-        context
+        'data functions should return an object:\n' +
+        'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+        vm
       );
-      return createEmptyVNode()
-    }
-    // object syntax in v-bind
-    if (isDef(data) && isDef(data.is)) {
-      tag = data.is;
-    }
-    if (!tag) {
-      // in case of component :is set to falsy value
-      return createEmptyVNode()
     }
-    // warn against non-primitive key
-    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-    ) {
+    // proxy data on instance
+    var keys = Object.keys(data);
+    var props = vm.$options.props;
+    var methods = vm.$options.methods;
+    var i = keys.length;
+    while (i--) {
+      var key = keys[i];
       {
+        if (methods && hasOwn(methods, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a data property."),
+            vm
+          );
+        }
+      }
+      if (props && hasOwn(props, key)) {
         warn(
-          'Avoid using non-primitive value as key, ' +
-          'use string/number value instead.',
-          context
+          "The data property \"" + key + "\" is already declared as a prop. " +
+          "Use prop default value instead.",
+          vm
         );
+      } else if (!isReserved(key)) {
+        proxy(vm, "_data", key);
       }
     }
-    // support single function children as default scoped slot
-    if (Array.isArray(children) &&
-      typeof children[0] === 'function'
-    ) {
-      data = data || {};
-      data.scopedSlots = { default: children[0] };
-      children.length = 0;
-    }
-    if (normalizationType === ALWAYS_NORMALIZE) {
-      children = normalizeChildren(children);
-    } else if (normalizationType === SIMPLE_NORMALIZE) {
-      children = simpleNormalizeChildren(children);
+    // observe data
+    observe(data, true /* asRootData */);
+  }
+
+  function getData (data, vm) {
+    // #7573 disable dep collection when invoking data getters
+    pushTarget();
+    try {
+      return data.call(vm, vm)
+    } catch (e) {
+      handleError(e, vm, "data()");
+      return {}
+    } finally {
+      popTarget();
     }
-    var vnode, ns;
-    if (typeof tag === 'string') {
-      var Ctor;
-      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-      if (config.isReservedTag(tag)) {
-        // platform built-in elements
-        vnode = new VNode(
-          config.parsePlatformTagName(tag), data, children,
-          undefined, undefined, context
+  }
+
+  var computedWatcherOptions = { lazy: true };
+
+  function initComputed (vm, computed) {
+    // $flow-disable-line
+    var watchers = vm._computedWatchers = Object.create(null);
+    // computed properties are just getters during SSR
+    var isSSR = isServerRendering();
+
+    for (var key in computed) {
+      var userDef = computed[key];
+      var getter = typeof userDef === 'function' ? userDef : userDef.get;
+      if (getter == null) {
+        warn(
+          ("Getter is missing for computed property \"" + key + "\"."),
+          vm
         );
-      } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-        // component
-        vnode = createComponent(Ctor, data, context, children, tag);
-      } else {
-        // unknown or unlisted namespaced elements
-        // check at runtime because it may get assigned a namespace when its
-        // parent normalizes children
-        vnode = new VNode(
-          tag, data, children,
-          undefined, undefined, context
+      }
+
+      if (!isSSR) {
+        // create internal watcher for the computed property.
+        watchers[key] = new Watcher(
+          vm,
+          getter || noop,
+          noop,
+          computedWatcherOptions
         );
       }
+
+      // component-defined computed properties are already defined on the
+      // component prototype. We only need to define computed properties defined
+      // at instantiation here.
+      if (!(key in vm)) {
+        defineComputed(vm, key, userDef);
+      } else {
+        if (key in vm.$data) {
+          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+        } else if (vm.$options.props && key in vm.$options.props) {
+          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+        }
+      }
+    }
+  }
+
+  function defineComputed (
+    target,
+    key,
+    userDef
+  ) {
+    var shouldCache = !isServerRendering();
+    if (typeof userDef === 'function') {
+      sharedPropertyDefinition.get = shouldCache
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef);
+      sharedPropertyDefinition.set = noop;
     } else {
-      // direct component options / constructor
-      vnode = createComponent(tag, data, context, children);
+      sharedPropertyDefinition.get = userDef.get
+        ? shouldCache && userDef.cache !== false
+          ? createComputedGetter(key)
+          : createGetterInvoker(userDef.get)
+        : noop;
+      sharedPropertyDefinition.set = userDef.set || noop;
     }
-    if (Array.isArray(vnode)) {
-      return vnode
-    } else if (isDef(vnode)) {
-      if (isDef(ns)) { applyNS(vnode, ns); }
-      if (isDef(data)) { registerDeepBindings(data); }
-      return vnode
-    } else {
-      return createEmptyVNode()
+    if (sharedPropertyDefinition.set === noop) {
+      sharedPropertyDefinition.set = function () {
+        warn(
+          ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+          this
+        );
+      };
     }
+    Object.defineProperty(target, key, sharedPropertyDefinition);
   }
 
-  function applyNS (vnode, ns, force) {
-    vnode.ns = ns;
-    if (vnode.tag === 'foreignObject') {
-      // use default namespace inside foreignObject
-      ns = undefined;
-      force = true;
-    }
-    if (isDef(vnode.children)) {
-      for (var i = 0, l = vnode.children.length; i < l; i++) {
-        var child = vnode.children[i];
-        if (isDef(child.tag) && (
-          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-          applyNS(child, ns, force);
+  function createComputedGetter (key) {
+    return function computedGetter () {
+      var watcher = this._computedWatchers && this._computedWatchers[key];
+      if (watcher) {
+        if (watcher.dirty) {
+          watcher.evaluate();
         }
+        if (Dep.target) {
+          watcher.depend();
+        }
+        return watcher.value
       }
     }
   }
 
-  // ref #5318
-  // necessary to ensure parent re-render when deep bindings like :style and
-  // :class are used on slot nodes
-  function registerDeepBindings (data) {
-    if (isObject(data.style)) {
-      traverse(data.style);
-    }
-    if (isObject(data.class)) {
-      traverse(data.class);
+  function createGetterInvoker(fn) {
+    return function computedGetter () {
+      return fn.call(this, this)
     }
   }
 
-  /*  */
-
-  function initRender (vm) {
-    vm._vnode = null; // the root of the child tree
-    vm._staticTrees = null; // v-once cached trees
-    var options = vm.$options;
-    var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-    var renderContext = parentVnode && parentVnode.context;
-    vm.$slots = resolveSlots(options._renderChildren, renderContext);
-    vm.$scopedSlots = emptyObject;
-    // bind the createElement fn to this instance
-    // so that we get proper render context inside it.
-    // args order: tag, data, children, normalizationType, alwaysNormalize
-    // internal version is used by render functions compiled from templates
-    vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-    // normalization is always applied for the public version, used in
-    // user-written render functions.
-    vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+  function initMethods (vm, methods) {
+    var props = vm.$options.props;
+    for (var key in methods) {
+      {
+        if (typeof methods[key] !== 'function') {
+          warn(
+            "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+            "Did you reference the function correctly?",
+            vm
+          );
+        }
+        if (props && hasOwn(props, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a prop."),
+            vm
+          );
+        }
+        if ((key in vm) && isReserved(key)) {
+          warn(
+            "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+            "Avoid defining component methods that start with _ or $."
+          );
+        }
+      }
+      vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+    }
+  }
 
-    // $attrs & $listeners are exposed for easier HOC creation.
-    // they need to be reactive so that HOCs using them are always updated
-    var parentData = parentVnode && parentVnode.data;
+  function initWatch (vm, watch) {
+    for (var key in watch) {
+      var handler = watch[key];
+      if (Array.isArray(handler)) {
+        for (var i = 0; i < handler.length; i++) {
+          createWatcher(vm, key, handler[i]);
+        }
+      } else {
+        createWatcher(vm, key, handler);
+      }
+    }
+  }
 
-    /* istanbul ignore else */
-    {
-      defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-        !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-      }, true);
-      defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-        !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-      }, true);
+  function createWatcher (
+    vm,
+    expOrFn,
+    handler,
+    options
+  ) {
+    if (isPlainObject(handler)) {
+      options = handler;
+      handler = handler.handler;
+    }
+    if (typeof handler === 'string') {
+      handler = vm[handler];
     }
+    return vm.$watch(expOrFn, handler, options)
   }
 
-  function renderMixin (Vue) {
-    // install runtime convenience helpers
-    installRenderHelpers(Vue.prototype);
+  function stateMixin (Vue) {
+    // flow somehow has problems with directly declared definition object
+    // when using Object.defineProperty, so we have to procedurally build up
+    // the object here.
+    var dataDef = {};
+    dataDef.get = function () { return this._data };
+    var propsDef = {};
+    propsDef.get = function () { return this._props };
+    {
+      dataDef.set = function () {
+        warn(
+          'Avoid replacing instance root $data. ' +
+          'Use nested data properties instead.',
+          this
+        );
+      };
+      propsDef.set = function () {
+        warn("$props is readonly.", this);
+      };
+    }
+    Object.defineProperty(Vue.prototype, '$data', dataDef);
+    Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-    Vue.prototype.$nextTick = function (fn) {
-      return nextTick(fn, this)
-    };
+    Vue.prototype.$set = set;
+    Vue.prototype.$delete = del;
 
-    Vue.prototype._render = function () {
+    Vue.prototype.$watch = function (
+      expOrFn,
+      cb,
+      options
+    ) {
       var vm = this;
-      var ref = vm.$options;
-      var render = ref.render;
-      var _parentVnode = ref._parentVnode;
-
-      if (_parentVnode) {
-        vm.$scopedSlots = normalizeScopedSlots(
-          _parentVnode.data.scopedSlots,
-          vm.$slots
-        );
+      if (isPlainObject(cb)) {
+        return createWatcher(vm, expOrFn, cb, options)
       }
-
-      // set parent vnode. this allows render functions to have access
-      // to the data on the placeholder node.
-      vm.$vnode = _parentVnode;
-      // render self
-      var vnode;
-      try {
-        vnode = render.call(vm._renderProxy, vm.$createElement);
-      } catch (e) {
-        handleError(e, vm, "render");
-        // return error render result,
-        // or previous vnode to prevent render error causing blank component
-        /* istanbul ignore else */
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
-          vnode = vm._vnode;
+      options = options || {};
+      options.user = true;
+      var watcher = new Watcher(vm, expOrFn, cb, options);
+      if (options.immediate) {
+        try {
+          cb.call(vm, watcher.value);
+        } catch (error) {
+          handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
         }
       }
-      // if the returned array contains only a single node, allow it
-      if (Array.isArray(vnode) && vnode.length === 1) {
-        vnode = vnode[0];
-      }
-      // return empty vnode in case the render function errored out
-      if (!(vnode instanceof VNode)) {
-        if (Array.isArray(vnode)) {
-          warn(
-            'Multiple root nodes returned from render function. Render function ' +
-            'should return a single root node.',
-            vm
-          );
-        }
-        vnode = createEmptyVNode();
+      return function unwatchFn () {
+        watcher.teardown();
       }
-      // set parent
-      vnode.parent = _parentVnode;
-      return vnode
     };
   }
 
@@ -5332,7 +5335,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.2';
+  Vue.version = '2.6.3';
 
   /*  */
 
@@ -7396,6 +7399,11 @@
     }
   }
 
+  // #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+  // implementation and does not fire microtasks in between event propagation, so
+  // safe to exclude.
+  var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
+
   function add$1 (
     name,
     handler,
@@ -7408,11 +7416,16 @@
     // the solution is simple: we save the timestamp when a handler is attached,
     // and the handler would only fire if the event passed to it was fired
     // AFTER it was attached.
-    if (isUsingMicroTask) {
+    if (useMicrotaskFix) {
       var attachedTimestamp = currentFlushTimestamp;
       var original = handler;
       handler = original._wrapper = function (e) {
-        if (e.timeStamp >= attachedTimestamp) {
+        if (
+          e.timeStamp >= attachedTimestamp ||
+          // #9448 bail if event is fired in another document in a multi-page
+          // electron/nw.js app
+          e.target.ownerDocument !== document
+        ) {
           return original.apply(this, arguments)
         }
       };
@@ -9424,6 +9437,8 @@
 
   var decodeHTMLCached = cached(he.decode);
 
+  var emptySlotScopeToken = "_empty_";
+
   // configurable state
   var warn$2;
   var delimiters;
@@ -10036,7 +10051,7 @@
           var dynamic = ref.dynamic;
           el.slotTarget = name;
           el.slotTargetDynamic = dynamic;
-          el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+          el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
         }
       } else {
         // v-slot on component, denotes default slot
@@ -10071,8 +10086,13 @@
           var slotContainer = slots[name$1] = createASTElement('template', [], el);
           slotContainer.slotTarget = name$1;
           slotContainer.slotTargetDynamic = dynamic$1;
-          slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
-          slotContainer.slotScope = slotBinding$1.value || "_";
+          slotContainer.children = el.children.filter(function (c) {
+            if (!c.slotScope) {
+              c.parent = slotContainer;
+              return true
+            }
+          });
+          slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
           // remove children as they are returned from scopedSlots now
           el.children = [];
           // mark el non-plain so data gets generated
@@ -11001,7 +11021,7 @@
     }
     // scoped slots
     if (el.scopedSlots) {
-      data += (genScopedSlots(el.scopedSlots, state)) + ",";
+      data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
     }
     // component v-model
     if (el.model) {
@@ -11072,16 +11092,34 @@
   }
 
   function genScopedSlots (
+    el,
     slots,
     state
   ) {
-    var hasDynamicKeys = Object.keys(slots).some(function (key) {
+    // by default scoped slots are considered "stable", this allows child
+    // components with only scoped slots to skip forced updates from parent.
+    // but in some cases we have to bail-out of this optimization
+    // for example if the slot contains dynamic names, has v-if or v-for on them...
+    var needsForceUpdate = Object.keys(slots).some(function (key) {
       var slot = slots[key];
       return slot.slotTargetDynamic || slot.if || slot.for
     });
+    // OR when it is inside another scoped slot (the reactivity is disconnected)
+    // #9438
+    if (!needsForceUpdate) {
+      var parent = el.parent;
+      while (parent) {
+        if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+          needsForceUpdate = true;
+          break
+        }
+        parent = parent.parent;
+      }
+    }
+
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
         return genScopedSlot(slots[key], state)
-      }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+      }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
@@ -11095,7 +11133,10 @@
     if (el.for && !el.forProcessed) {
       return genFor(el, state, genScopedSlot)
     }
-    var fn = "function(" + (String(el.slotScope)) + "){" +
+    var slotScope = el.slotScope === emptySlotScopeToken
+      ? ""
+      : String(el.slotScope);
+    var fn = "function(" + slotScope + "){" +
       "return " + (el.tag === 'template'
         ? el.if && isLegacySyntax
           ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
@@ -11188,7 +11229,14 @@
     var slotName = el.slotName || '"default"';
     var children = genChildren(el, state);
     var res = "_t(" + slotName + (children ? ("," + children) : '');
-    var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+    var attrs = el.attrs || el.dynamicAttrs
+      ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
+          // slot props are camelized
+          name: camelize(attr.name),
+          value: attr.value,
+          dynamic: attr.dynamic
+        }); }))
+      : null;
     var bind$$1 = el.attrsMap['v-bind'];
     if ((attrs || bind$$1) && !children) {
       res += ",null";
diff --git a/dist/vue.min.js b/dist/vue.min.js
index a2a499e7cff..f89cdad0e30 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var _=/-(\w)/g,b=g(function(e){return e.replace(_,function(e,t){return t?t.toUpperCase():""})}),$=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),w=/\B([A-Z])/g,C=g(function(e){return e.replace(w,"-$1").toLowerCase()});var x=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function A(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function O(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index 389e6632973..452f825a0ad 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -525,6 +525,7 @@ var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 var isPhantomJS = UA && /phantomjs/.test(UA);
+var isFF = UA && UA.match(/firefox\/(\d+)/);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -2395,2437 +2396,2439 @@ function normalizeArrayChildren (children, nestedIndex) {
 
 /*  */
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
   }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
 }
 
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      } else {
-        contexts.length = 0;
-      }
-    });
-
-    var reject = once(function (reason) {
-      warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
       }
     });
+    toggleObserving(true);
+  }
+}
 
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (isPromise(res)) {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isPromise(res.component)) {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
         }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
-            }
-          }, res.timeout);
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else {
+          warn(("Injection \"" + key + "\" not found"), vm);
         }
       }
     }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+    return result
   }
 }
 
 /*  */
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
 
-/*  */
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  var slots = {};
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
       }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
     }
   }
+  return slots
 }
 
-/*  */
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
 
 /*  */
 
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
   }
+  def(res, '_normalized', true);
+  def(res, '$stable', slots ? !!slots.$stable : true);
+  return res
 }
 
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
 }
 
-function remove$1 (event, fn) {
-  target.$off(event, fn);
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
 }
 
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
+/*  */
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        vm.$off(event[i$1], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
-      }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
     }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
       }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      var info = "event handler for \"" + event + "\"";
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
       }
     }
-    return vm
-  };
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
 }
 
 /*  */
 
-
-
 /**
- * Runtime helper for resolving raw children VNodes into a slot object.
+ * Runtime helper for rendering <slot>
  */
-function resolveSlots (
-  children,
-  context
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
 ) {
-  if (!children || !children.length) {
-    return {}
-  }
-  var slots = {};
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
       }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
+      props = extend(extend({}, bindObject), props);
     }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
   }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  hasDynamicKeys,
-  res
-) {
-  res = res || { $stable: !hasDynamicKeys };
-  for (var i = 0; i < fns.length; i++) {
-    var slot = fns[i];
-    if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else if (slot) {
-      res[slot.key] = slot.fn;
-    }
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
-  return res
 }
 
 /*  */
 
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
 }
 
-function initLifecycle (vm) {
-  var options = vm.$options;
+/*  */
 
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
   }
+}
 
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
 }
 
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
     } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
 
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
+      for (var key in value) loop( key );
     }
-  };
+  }
+  return data
 }
 
-function mountComponent (
-  vm,
-  el,
-  hydrating
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
 ) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
-      }
-    }
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
   }
-  callHook(vm, 'beforeMount');
-
-  var updateComponent;
-  /* istanbul ignore if */
-  if (config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
 
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
 
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
+    }
   } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
+    markStaticNode(tree, key, isOnce);
   }
+}
 
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
       }
     }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
-
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
   }
-  return vm
+  return data
 }
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
+/*  */
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
 ) {
-  {
-    isUpdatingChildComponent = true;
+  res = res || { $stable: !hasDynamicKeys };
+  for (var i = 0; i < fns.length; i++) {
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else if (slot) {
+      res[slot.key] = slot.fn;
+    }
   }
+  return res
+}
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren.
+/*  */
 
-  // check if there are dynamic scopedSlots (hand-written or compiled but with
-  // dynamic slot names). Static scoped slots compiled from template has the
-  // "$stable" marker.
-  var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-  );
-  // Any static slot children from the parent may have changed during parent's
-  // update. Dynamic scoped slots may also have changed. In such cases, a forced
-  // update is necessary to ensure correctness.
-  var needsForceUpdate = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    hasDynamicScopedSlot
-  );
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
+}
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
+/*  */
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
-    }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
+) {
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
   }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
 
-  // resolve slots + force update if has children
-  if (needsForceUpdate) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
-  }
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
 
-  {
-    isUpdatingChildComponent = false;
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
   }
-}
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
   }
-  return false
 }
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
+installRenderHelpers(FunctionalRenderContext.prototype);
+
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
-  } else if (vm._directInactive) {
-    return
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
   }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
+
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
     }
-    callHook(vm, 'activated');
+    return res
   }
 }
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
+  {
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
   }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
-    }
-    callHook(vm, 'deactivated');
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
   }
+  return clone
 }
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  var info = hook + " hook";
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
-    }
-  }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
   }
-  popTarget();
 }
 
 /*  */
 
-var MAX_UPDATE_COUNT = 100;
+/*  */
 
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
+/*  */
 
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  {
-    circular = {};
-  }
-  waiting = flushing = false;
-}
+/*  */
 
-// Async edge case #6566 requires saving the timestamp when event listeners are
-// attached. However, calling performance.now() has a perf overhead especially
-// if the page has thousands of event listeners. Instead, we take a timestamp
-// every time the scheduler flushes and use that for all event listeners
-// attached during that flush.
-var currentFlushTimestamp = 0;
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+    }
+  },
 
-// Async edge case fix requires storing an event listener's attach timestamp.
-var getNow = Date.now;
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
 
-// Determine what event timestamp the browser is using. Annoyingly, the
-// timestamp can either be hi-res ( relative to poge load) or low-res
-// (relative to UNIX epoch), so in order to compare time we have to use the
-// same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
-}
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
+    }
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  },
 
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  currentFlushTimestamp = getNow();
-  flushing = true;
-  var watcher, id;
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
+    }
+  }
+};
 
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
+var hooksToMerge = Object.keys(componentVNodeHooks);
 
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
+
+  var baseCtor = context.$options._base;
+
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
+  }
+
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
     }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
+    return
+  }
+
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
     }
   }
 
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
+  data = data || {};
 
-  resetSchedulerState();
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
 
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
   }
-}
 
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
     }
   }
-}
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
+
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
+
+  return vnode
 }
 
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
+  return new vnode.componentOptions.Ctor(options)
 }
 
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
     }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
+  }
+}
 
-      if (!config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
+}
+
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
     }
+  } else {
+    on[event] = callback;
   }
 }
 
 /*  */
 
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
 
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
 
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
   }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
-  } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
   }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = expOrFn.toString();
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
-  } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
       warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
       );
     }
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
-
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
     } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
     }
-    popTarget();
-    this.cleanupDeps();
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
   }
-  return value
-};
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
+  }
+}
 
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
     }
   }
-};
+}
 
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
   }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
 
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
-  } else {
-    queueWatcher(this);
+  {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
   }
-};
+}
 
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
+var currentRenderingInstance = null;
 
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
 
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
 
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
     }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      // There's no need to maintain a stack becaues all render fns are called
+      // separately from one another. Nested component's render fns are called
+      // when parent component is patched.
+      currentRenderingInstance = vm;
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    } finally {
+      currentRenderingInstance = null;
     }
-    this.active = false;
-  }
-};
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
+    }
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
 
 /*  */
 
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
 
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
 }
 
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
+function resolveAsyncComponent (
+  factory,
+  baseCtor
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
   }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
   }
-}
 
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
   }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
+
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners)) {
+    // already pending
+    factory.owners.push(owner);
+  } else {
+    var owners = factory.owners = [owner];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = owners.length; i < l; i++) {
+        (owners[i]).$forceUpdate();
       }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
 
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
+      if (renderCompleted) {
+        owners.length = 0;
+      }
+    };
 
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        owners.length = 0;
       }
-    }
-    if (props && hasOwn(props, key)) {
+    });
+
+    var reject = once(function (reason) {
       warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
       );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
-    }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
+      }
+    }
 
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
   }
 }
 
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
+/*  */
 
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
 
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
+/*  */
 
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
       }
     }
   }
 }
 
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
+/*  */
 
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
   }
 }
 
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
+function remove$1 (event, fn) {
+  target.$off(event, fn);
 }
 
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
     }
   }
 }
 
-function createWatcher (
+function updateComponentListeners (
   vm,
-  expOrFn,
-  handler,
-  options
+  listeners,
+  oldListeners
 ) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
 }
 
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
+
+  Vue.prototype.$off = function (event, fn) {
+    var vm = this;
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
+  Vue.prototype.$emit = function (event) {
     var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
-    }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+    {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
       }
     }
-    return function unwatchFn () {
-      watcher.teardown();
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
     }
+    return vm
   };
 }
 
 /*  */
 
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
+var activeInstance = null;
+var isUpdatingChildComponent = false;
 
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      }
-    });
-    toggleObserving(true);
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
   }
 }
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject)
-      : Object.keys(inject);
+function initLifecycle (vm) {
+  var options = vm.$options;
 
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      // #6574 in case the inject object is observed...
-      if (key === '__ob__') { continue }
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
     }
-    return result
+    parent.$children.push(vm);
   }
-}
-
-/*  */
 
-function normalizeScopedSlots (
-  slots,
-  normalSlots
-) {
-  var res;
-  if (!slots) {
-    res = {};
-  } else if (slots._normalized) {
-    return slots
-  } else {
-    res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-      }
-    }
-  }
-  // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
-    }
-  }
-  res._normalized = true;
-  res.$stable = slots ? slots.$stable : true;
-  return res
-}
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
 
-function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    if ( scope === void 0 ) scope = {};
+  vm.$children = [];
+  vm.$refs = {};
 
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
-      ? [res] // single vnode
-      : normalizeChildren(res)
-  };
-  // proxy scoped slots on normal $slots
-  if (!hasOwn(normalSlots, key)) {
-    Object.defineProperty(normalSlots, key, {
-      get: normalized
-    });
-  }
-  return normalized
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
 }
 
-function proxyNormalSlot(slots, key) {
-  return function () { return slots[key]; }
-}
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
 
-/*  */
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
     }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
+    }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
     }
-  } else if (isObject(val)) {
-    if (hasSymbol && val[Symbol.iterator]) {
-      ret = [];
-      var iterator = val[Symbol.iterator]();
-      var result = iterator.next();
-      while (!result.done) {
-        ret.push(render(result.value, ret.length));
-        result = iterator.next();
-      }
-    } else {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
-      }
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
     }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
+  };
 }
 
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
+function mountComponent (
+  vm,
+  el,
+  hydrating
 ) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (!isObject(bindObject)) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
         warn(
-          'slot v-bind without argument expects an Object',
-          this
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
         );
       }
-      props = extend(extend({}, bindObject), props);
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
   }
+  callHook(vm, 'beforeMount');
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
+  var updateComponent;
+  /* istanbul ignore if */
+  if (config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
 
-/*  */
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
 
-/*  */
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
   }
+  return vm
 }
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
 ) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
+  {
+    isUpdatingChildComponent = true;
   }
-}
 
-/*  */
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
 
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
 
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
 
-      for (var key in value) loop( key );
-    }
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
   }
-  return data
-}
-
-/*  */
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
+  {
+    isUpdatingChildComponent = false;
   }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
 }
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
 }
 
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
+  } else if (vm._directInactive) {
+    return
   }
-}
-
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
-
-/*  */
-
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
     }
+    callHook(vm, 'activated');
   }
-  return data
 }
 
-/*  */
-
-function bindDynamicKeys (baseObj, values) {
-  for (var i = 0; i < values.length; i += 2) {
-    var key = values[i];
-    if (typeof key === 'string' && key) {
-      baseObj[values[i]] = values[i + 1];
-    } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
-      warn(
-        ("Invalid value for dynamic directive argument (expected string or null): " + key),
-        this
-      );
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
     }
   }
-  return baseObj
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
 }
 
-// helper to dynamically append modifier runtime markers to event names.
-// ensure only append when value is already string, otherwise it will be cast
-// to string and cause the type check to miss.
-function prependModifier (value, symbol) {
-  return typeof value === 'string' ? symbol + value : value
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  var info = hook + " hook";
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
 }
 
 /*  */
 
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-  target._d = bindDynamicKeys;
-  target._p = prependModifier;
-}
+var MAX_UPDATE_COUNT = 100;
 
-/*  */
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
 
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  {
+    circular = {};
   }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
-
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+  waiting = flushing = false;
+}
 
-  Object.defineProperty(this, 'scopedSlots', ({
-    enumerable: true,
-    get: function get () {
-      return normalizeScopedSlots(data.scopedSlots, this.slots())
-    }
-  }));
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
 
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
-  }
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
 
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
-      }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-  }
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res (relative to page load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
 }
 
-installRenderHelpers(FunctionalRenderContext.prototype);
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  var watcher, id;
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
+      }
     }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
   }
 
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
 
-  var vnode = options.render.call(null, renderContext._c, renderContext);
+  resetSchedulerState();
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-    }
-    return res
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
+
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
+    }
   }
-  return clone
 }
 
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
-  }
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
 }
 
-/*  */
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
+  }
+}
 
-/*  */
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
 
-/*  */
+      if (!config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
+  }
+}
 
 /*  */
 
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
-      );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-    }
-  },
 
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
-    }
-  },
+var uid$2 = 0;
 
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$2; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = expOrFn.toString();
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
+      );
     }
   }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
 };
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
     }
-    return
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
+    }
+    popTarget();
+    this.cleanupDeps();
   }
+  return value
+};
 
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
     }
   }
+};
 
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
+    }
   }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
 
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
   }
+};
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
     }
   }
+};
 
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
 
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
   }
-  return new vnode.componentOptions.Ctor(options)
-}
+};
 
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
+    }
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
     }
+    this.active = false;
   }
-}
+};
+
+/*  */
 
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
+
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
   };
-  merged._merged = true;
-  return merged
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
-    }
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
   } else {
-    on[event] = callback;
+    observe(vm._data = {}, true /* asRootData */);
+  }
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
   }
 }
 
-/*  */
-
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
-
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
-  }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
   }
-  return _createElement(context, tag, data, children, normalizationType)
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
 }
 
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
     warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
     );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
   }
-  // warn against non-primitive key
-  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
     {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
       warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
       );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
     }
   }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
   }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
       );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
       );
     }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
   }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
   } else {
-    return createEmptyVNode()
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
   }
+  if (sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
+  }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
       }
+      if (Dep.target) {
+        watcher.depend();
+      }
+      return watcher.value
     }
   }
 }
 
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
   }
 }
 
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
 
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
 
-  /* istanbul ignore else */
-  {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
   }
+  return vm.$watch(expOrFn, handler, options)
 }
 
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
 
-  Vue.prototype._render = function () {
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
     var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = normalizeScopedSlots(
-        _parentVnode.data.scopedSlots,
-        vm.$slots
-      );
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
     }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
       }
     }
-    // if the returned array contains only a single node, allow it
-    if (Array.isArray(vnode) && vnode.length === 1) {
-      vnode = vnode[0];
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
+    return function unwatchFn () {
+      watcher.teardown();
     }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
   };
 }
 
@@ -5319,7 +5322,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.2';
+Vue.version = '2.6.3';
 
 /*  */
 
@@ -6744,6 +6747,11 @@ function createOnceHandler$1 (event, handler, capture) {
   }
 }
 
+// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+// implementation and does not fire microtasks in between event propagation, so
+// safe to exclude.
+var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
+
 function add$1 (
   name,
   handler,
@@ -6756,11 +6764,16 @@ function add$1 (
   // the solution is simple: we save the timestamp when a handler is attached,
   // and the handler would only fire if the event passed to it was fired
   // AFTER it was attached.
-  if (isUsingMicroTask) {
+  if (useMicrotaskFix) {
     var attachedTimestamp = currentFlushTimestamp;
     var original = handler;
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= attachedTimestamp) {
+      if (
+        e.timeStamp >= attachedTimestamp ||
+        // #9448 bail if event is fired in another document in a multi-page
+        // electron/nw.js app
+        e.target.ownerDocument !== document
+      ) {
         return original.apply(this, arguments)
       }
     };
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index 839e299e7cb..9471ab16c66 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(t,e){return h.call(t,e)}function y(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}var g=/-(\w)/g,_=y(function(t){return t.replace(g,function(t,e){return e?e.toUpperCase():""})}),b=y(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),C=/\B([A-Z])/g,A=y(function(t){return t.replace(C,"-$1").toLowerCase()});var w=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function $(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function x(t,e){for(var n in e)t[n]=e[n];return t}function O(t){for(var e={},n=0;n<t.length;n++)t[n]&&x(e,t[n]);return e}function k(t,e,n){}var S=function(t,e,n){return!1},E=function(t){return t};function j(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var 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t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return $o(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Ao(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),$o(t,i);if("in-out"===r){if(Ue(a))return u;var 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c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Eo),t.forEach(jo),t.forEach(Io),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};_n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=zn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return Bn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(zn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,To),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){P.devtools&&tt&&tt.emit("init",_n)},0),module.exports=_n;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 1c09d41199e..5cadd3ea6e8 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -523,6 +523,7 @@ var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 var isPhantomJS = UA && /phantomjs/.test(UA);
+var isFF = UA && UA.match(/firefox\/(\d+)/);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -2399,2450 +2400,2452 @@ function normalizeArrayChildren (children, nestedIndex) {
 
 /*  */
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
+function initProvide (vm) {
+  var provide = vm.$options.provide;
+  if (provide) {
+    vm._provided = typeof provide === 'function'
+      ? provide.call(vm)
+      : provide;
   }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
-
-function createAsyncPlaceholder (
-  factory,
-  data,
-  context,
-  children,
-  tag
-) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
 }
 
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
-) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
-  }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
-  }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
-  }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
+function initInjections (vm) {
+  var result = resolveInject(vm.$options.inject, vm);
+  if (result) {
+    toggleObserving(false);
+    Object.keys(result).forEach(function (key) {
+      /* istanbul ignore else */
+      if (process.env.NODE_ENV !== 'production') {
+        defineReactive$$1(vm, key, result[key], function () {
+          warn(
+            "Avoid mutating an injected value directly since the changes will be " +
+            "overwritten whenever the provided component re-renders. " +
+            "injection being mutated: \"" + key + "\"",
+            vm
+          );
+        });
       } else {
-        contexts.length = 0;
-      }
-    });
-
-    var reject = once(function (reason) {
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
-      );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
+        defineReactive$$1(vm, key, result[key]);
       }
     });
+    toggleObserving(true);
+  }
+}
 
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (isPromise(res)) {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isPromise(res.component)) {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
+function resolveInject (inject, vm) {
+  if (inject) {
+    // inject is :any because flow is not smart enough to figure out cached
+    var result = Object.create(null);
+    var keys = hasSymbol
+      ? Reflect.ownKeys(inject)
+      : Object.keys(inject);
 
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i];
+      // #6574 in case the inject object is observed...
+      if (key === '__ob__') { continue }
+      var provideKey = inject[key].from;
+      var source = vm;
+      while (source) {
+        if (source._provided && hasOwn(source._provided, provideKey)) {
+          result[key] = source._provided[provideKey];
+          break
         }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                process.env.NODE_ENV !== 'production'
-                  ? ("timeout (" + (res.timeout) + "ms)")
-                  : null
-              );
-            }
-          }, res.timeout);
+        source = source.$parent;
+      }
+      if (!source) {
+        if ('default' in inject[key]) {
+          var provideDefault = inject[key].default;
+          result[key] = typeof provideDefault === 'function'
+            ? provideDefault.call(vm)
+            : provideDefault;
+        } else if (process.env.NODE_ENV !== 'production') {
+          warn(("Injection \"" + key + "\" not found"), vm);
         }
       }
     }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+    return result
   }
 }
 
 /*  */
 
-function isAsyncPlaceholder (node) {
-  return node.isComment && node.asyncFactory
-}
 
-/*  */
 
-function getFirstComponentChild (children) {
-  if (Array.isArray(children)) {
-    for (var i = 0; i < children.length; i++) {
-      var c = children[i];
-      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-        return c
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
+  children,
+  context
+) {
+  if (!children || !children.length) {
+    return {}
+  }
+  var slots = {};
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
       }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
+  }
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
     }
   }
+  return slots
 }
 
-/*  */
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
+}
 
 /*  */
 
-function initEvents (vm) {
-  vm._events = Object.create(null);
-  vm._hasHookEvent = false;
-  // init parent attached events
-  var listeners = vm.$options._parentListeners;
-  if (listeners) {
-    updateComponentListeners(vm, listeners);
+function normalizeScopedSlots (
+  slots,
+  normalSlots
+) {
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
+      }
+    }
+  }
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
   }
+  def(res, '_normalized', true);
+  def(res, '$stable', slots ? !!slots.$stable : true);
+  return res
 }
 
-var target;
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
+  }
+}
 
-function add (event, fn) {
-  target.$on(event, fn);
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
 }
 
-function remove$1 (event, fn) {
-  target.$off(event, fn);
-}
-
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
-  }
-}
+/*  */
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
+/**
+ * Runtime helper for rendering v-for lists.
+ */
+function renderList (
+  val,
+  render
 ) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
-function eventsMixin (Vue) {
-  var hookRE = /^hook:/;
-  Vue.prototype.$on = function (event, fn) {
-    var vm = this;
-    if (Array.isArray(event)) {
-      for (var i = 0, l = event.length; i < l; i++) {
-        vm.$on(event[i], fn);
-      }
-    } else {
-      (vm._events[event] || (vm._events[event] = [])).push(fn);
-      // optimize hook:event cost by using a boolean flag marked at registration
-      // instead of a hash lookup
-      if (hookRE.test(event)) {
-        vm._hasHookEvent = true;
-      }
-    }
-    return vm
-  };
-
-  Vue.prototype.$once = function (event, fn) {
-    var vm = this;
-    function on () {
-      vm.$off(event, on);
-      fn.apply(vm, arguments);
-    }
-    on.fn = fn;
-    vm.$on(event, on);
-    return vm
-  };
-
-  Vue.prototype.$off = function (event, fn) {
-    var vm = this;
-    // all
-    if (!arguments.length) {
-      vm._events = Object.create(null);
-      return vm
-    }
-    // array of events
-    if (Array.isArray(event)) {
-      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-        vm.$off(event[i$1], fn);
-      }
-      return vm
-    }
-    // specific event
-    var cbs = vm._events[event];
-    if (!cbs) {
-      return vm
-    }
-    if (!fn) {
-      vm._events[event] = null;
-      return vm
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-    // specific handler
-    var cb;
-    var i = cbs.length;
-    while (i--) {
-      cb = cbs[i];
-      if (cb === fn || cb.fn === fn) {
-        cbs.splice(i, 1);
-        break
-      }
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
     }
-    return vm
-  };
-
-  Vue.prototype.$emit = function (event) {
-    var vm = this;
-    if (process.env.NODE_ENV !== 'production') {
-      var lowerCaseEvent = event.toLowerCase();
-      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-        tip(
-          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-          "Note that HTML attributes are case-insensitive and you cannot use " +
-          "v-on to listen to camelCase events when using in-DOM templates. " +
-          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-        );
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
       }
-    }
-    var cbs = vm._events[event];
-    if (cbs) {
-      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-      var args = toArray(arguments, 1);
-      var info = "event handler for \"" + event + "\"";
-      for (var i = 0, l = cbs.length; i < l; i++) {
-        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+    } else {
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
       }
     }
-    return vm
-  };
+  }
+  if (!isDef(ret)) {
+    ret = [];
+  }
+  (ret)._isVList = true;
+  return ret
 }
 
 /*  */
 
-
-
 /**
- * Runtime helper for resolving raw children VNodes into a slot object.
+ * Runtime helper for rendering <slot>
  */
-function resolveSlots (
-  children,
-  context
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
 ) {
-  if (!children || !children.length) {
-    return {}
-  }
-  var slots = {};
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
-    }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
       }
-    } else {
-      (slots.default || (slots.default = [])).push(child);
-    }
-  }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
+      props = extend(extend({}, bindObject), props);
     }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
   }
-  return slots
-}
-
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  hasDynamicKeys,
-  res
-) {
-  res = res || { $stable: !hasDynamicKeys };
-  for (var i = 0; i < fns.length; i++) {
-    var slot = fns[i];
-    if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else if (slot) {
-      res[slot.key] = slot.fn;
-    }
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
-  return res
 }
 
 /*  */
 
-var activeInstance = null;
-var isUpdatingChildComponent = false;
-
-function setActiveInstance(vm) {
-  var prevActiveInstance = activeInstance;
-  activeInstance = vm;
-  return function () {
-    activeInstance = prevActiveInstance;
-  }
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
 }
 
-function initLifecycle (vm) {
-  var options = vm.$options;
+/*  */
 
-  // locate first non-abstract parent
-  var parent = options.parent;
-  if (parent && !options.abstract) {
-    while (parent.$options.abstract && parent.$parent) {
-      parent = parent.$parent;
-    }
-    parent.$children.push(vm);
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
   }
+}
 
-  vm.$parent = parent;
-  vm.$root = parent ? parent.$root : vm;
-
-  vm.$children = [];
-  vm.$refs = {};
-
-  vm._watcher = null;
-  vm._inactive = null;
-  vm._directInactive = false;
-  vm._isMounted = false;
-  vm._isDestroyed = false;
-  vm._isBeingDestroyed = false;
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
 }
 
-function lifecycleMixin (Vue) {
-  Vue.prototype._update = function (vnode, hydrating) {
-    var vm = this;
-    var prevEl = vm.$el;
-    var prevVnode = vm._vnode;
-    var restoreActiveInstance = setActiveInstance(vm);
-    vm._vnode = vnode;
-    // Vue.prototype.__patch__ is injected in entry points
-    // based on the rendering backend used.
-    if (!prevVnode) {
-      // initial render
-      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+/*  */
+
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
     } else {
-      // updates
-      vm.$el = vm.__patch__(prevVnode, vnode);
-    }
-    restoreActiveInstance();
-    // update __vue__ reference
-    if (prevEl) {
-      prevEl.__vue__ = null;
-    }
-    if (vm.$el) {
-      vm.$el.__vue__ = vm;
-    }
-    // if parent is an HOC, update its $el as well
-    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-      vm.$parent.$el = vm.$el;
-    }
-    // updated hook is called by the scheduler to ensure that children are
-    // updated in a parent's updated hook.
-  };
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
 
-  Vue.prototype.$forceUpdate = function () {
-    var vm = this;
-    if (vm._watcher) {
-      vm._watcher.update();
-    }
-  };
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  Vue.prototype.$destroy = function () {
-    var vm = this;
-    if (vm._isBeingDestroyed) {
-      return
-    }
-    callHook(vm, 'beforeDestroy');
-    vm._isBeingDestroyed = true;
-    // remove self from parent
-    var parent = vm.$parent;
-    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-      remove(parent.$children, vm);
-    }
-    // teardown watchers
-    if (vm._watcher) {
-      vm._watcher.teardown();
-    }
-    var i = vm._watchers.length;
-    while (i--) {
-      vm._watchers[i].teardown();
-    }
-    // remove reference from data ob
-    // frozen object may not have observer.
-    if (vm._data.__ob__) {
-      vm._data.__ob__.vmCount--;
-    }
-    // call the last hook...
-    vm._isDestroyed = true;
-    // invoke destroy hooks on current rendered tree
-    vm.__patch__(vm._vnode, null);
-    // fire destroyed hook
-    callHook(vm, 'destroyed');
-    // turn off all instance listeners.
-    vm.$off();
-    // remove __vue__ reference
-    if (vm.$el) {
-      vm.$el.__vue__ = null;
-    }
-    // release circular reference (#6759)
-    if (vm.$vnode) {
-      vm.$vnode.parent = null;
+      for (var key in value) loop( key );
     }
-  };
+  }
+  return data
 }
 
-function mountComponent (
-  vm,
-  el,
-  hydrating
+/*  */
+
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
 ) {
-  vm.$el = el;
-  if (!vm.$options.render) {
-    vm.$options.render = createEmptyVNode;
-    if (process.env.NODE_ENV !== 'production') {
-      /* istanbul ignore if */
-      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-        vm.$options.el || el) {
-        warn(
-          'You are using the runtime-only build of Vue where the template ' +
-          'compiler is not available. Either pre-compile the templates into ' +
-          'render functions, or use the compiler-included build.',
-          vm
-        );
-      } else {
-        warn(
-          'Failed to mount component: template or render function not defined.',
-          vm
-        );
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
+  }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
+}
+
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
+}
+
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
       }
     }
+  } else {
+    markStaticNode(tree, key, isOnce);
   }
-  callHook(vm, 'beforeMount');
+}
 
-  var updateComponent;
-  /* istanbul ignore if */
-  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
-    updateComponent = function () {
-      var name = vm._name;
-      var id = vm._uid;
-      var startTag = "vue-perf-start:" + id;
-      var endTag = "vue-perf-end:" + id;
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
 
-      mark(startTag);
-      var vnode = vm._render();
-      mark(endTag);
-      measure(("vue " + name + " render"), startTag, endTag);
+/*  */
 
-      mark(startTag);
-      vm._update(vnode, hydrating);
-      mark(endTag);
-      measure(("vue " + name + " patch"), startTag, endTag);
-    };
-  } else {
-    updateComponent = function () {
-      vm._update(vm._render(), hydrating);
-    };
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
+    }
   }
+  return data
+}
 
-  // we set this to vm._watcher inside the watcher's constructor
-  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-  // component's mounted hook), which relies on vm._watcher being already defined
-  new Watcher(vm, updateComponent, noop, {
-    before: function before () {
-      if (vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'beforeUpdate');
-      }
+/*  */
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
+) {
+  res = res || { $stable: !hasDynamicKeys };
+  for (var i = 0; i < fns.length; i++) {
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else if (slot) {
+      res[slot.key] = slot.fn;
     }
-  }, true /* isRenderWatcher */);
-  hydrating = false;
+  }
+  return res
+}
 
-  // manually mounted instance, call mounted on self
-  // mounted is called for render-created child components in its inserted hook
-  if (vm.$vnode == null) {
-    vm._isMounted = true;
-    callHook(vm, 'mounted');
+/*  */
+
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
   }
-  return vm
+  return baseObj
 }
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
+}
+
+/*  */
+
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
+
+/*  */
+
+function FunctionalRenderContext (
+  data,
+  props,
+  children,
+  parent,
+  Ctor
 ) {
-  if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = true;
+  var options = Ctor.options;
+  // ensure the createElement function in functional components
+  // gets a unique context - this is necessary for correct named slot check
+  var contextVm;
+  if (hasOwn(parent, '_uid')) {
+    contextVm = Object.create(parent);
+    // $flow-disable-line
+    contextVm._original = parent;
+  } else {
+    // the context vm passed in is a functional context as well.
+    // in this case we want to make sure we are able to get a hold to the
+    // real context instance.
+    contextVm = parent;
+    // $flow-disable-line
+    parent = parent._original;
   }
+  var isCompiled = isTrue(options._compiled);
+  var needNormalization = !isCompiled;
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren.
+  this.data = data;
+  this.props = props;
+  this.children = children;
+  this.parent = parent;
+  this.listeners = data.on || emptyObject;
+  this.injections = resolveInject(options.inject, parent);
+  this.slots = function () { return resolveSlots(children, parent); };
 
-  // check if there are dynamic scopedSlots (hand-written or compiled but with
-  // dynamic slot names). Static scoped slots compiled from template has the
-  // "$stable" marker.
-  var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-  );
-  // Any static slot children from the parent may have changed during parent's
-  // update. Dynamic scoped slots may also have changed. In such cases, a forced
-  // update is necessary to ensure correctness.
-  var needsForceUpdate = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    hasDynamicScopedSlot
-  );
+  Object.defineProperty(this, 'scopedSlots', ({
+    enumerable: true,
+    get: function get () {
+      return normalizeScopedSlots(data.scopedSlots, this.slots())
+    }
+  }));
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  // support for compiled functional template
+  if (isCompiled) {
+    // exposing $options for renderStatic()
+    this.$options = options;
+    // pre-resolve slots for renderSlot()
+    this.$slots = this.slots();
+    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
+  }
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
+  if (options._scopeId) {
+    this._c = function (a, b, c, d) {
+      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+      if (vnode && !Array.isArray(vnode)) {
+        vnode.fnScopeId = options._scopeId;
+        vnode.fnContext = parent;
+      }
+      return vnode
+    };
+  } else {
+    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
   }
-  vm.$options._renderChildren = renderChildren;
+}
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+installRenderHelpers(FunctionalRenderContext.prototype);
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
+function createFunctionalComponent (
+  Ctor,
+  propsData,
+  data,
+  contextVm,
+  children
+) {
+  var options = Ctor.options;
+  var props = {};
+  var propOptions = options.props;
+  if (isDef(propOptions)) {
+    for (var key in propOptions) {
+      props[key] = validateProp(key, propOptions, propsData || emptyObject);
     }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
+  } else {
+    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+    if (isDef(data.props)) { mergeProps(props, data.props); }
   }
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+  var renderContext = new FunctionalRenderContext(
+    data,
+    props,
+    children,
+    contextVm,
+    Ctor
+  );
 
-  // resolve slots + force update if has children
-  if (needsForceUpdate) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
+  var vnode = options.render.call(null, renderContext._c, renderContext);
+
+  if (vnode instanceof VNode) {
+    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+  } else if (Array.isArray(vnode)) {
+    var vnodes = normalizeChildren(vnode) || [];
+    var res = new Array(vnodes.length);
+    for (var i = 0; i < vnodes.length; i++) {
+      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+    }
+    return res
   }
+}
 
+function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+  // #7817 clone node before setting fnContext, otherwise if the node is reused
+  // (e.g. it was from a cached normal slot) the fnContext causes named slots
+  // that should not be matched to match.
+  var clone = cloneVNode(vnode);
+  clone.fnContext = contextVm;
+  clone.fnOptions = options;
   if (process.env.NODE_ENV !== 'production') {
-    isUpdatingChildComponent = false;
+    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
   }
+  if (data.slot) {
+    (clone.data || (clone.data = {})).slot = data.slot;
+  }
+  return clone
 }
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
+function mergeProps (to, from) {
+  for (var key in from) {
+    to[camelize(key)] = from[key];
   }
-  return false
 }
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+/*  */
+
+/*  */
+
+/*  */
+
+/*  */
+
+// inline hooks to be invoked on component VNodes during patch
+var componentVNodeHooks = {
+  init: function init (vnode, hydrating) {
+    if (
+      vnode.componentInstance &&
+      !vnode.componentInstance._isDestroyed &&
+      vnode.data.keepAlive
+    ) {
+      // kept-alive components, treat as a patch
+      var mountedNode = vnode; // work around flow
+      componentVNodeHooks.prepatch(mountedNode, mountedNode);
+    } else {
+      var child = vnode.componentInstance = createComponentInstanceForVnode(
+        vnode,
+        activeInstance
+      );
+      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
-    callHook(vm, 'activated');
-  }
-}
+  },
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
+  prepatch: function prepatch (oldVnode, vnode) {
+    var options = vnode.componentOptions;
+    var child = vnode.componentInstance = oldVnode.componentInstance;
+    updateChildComponent(
+      child,
+      options.propsData, // updated props
+      options.listeners, // updated listeners
+      vnode, // new parent vnode
+      options.children // new children
+    );
+  },
+
+  insert: function insert (vnode) {
+    var context = vnode.context;
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isMounted) {
+      componentInstance._isMounted = true;
+      callHook(componentInstance, 'mounted');
     }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
+    if (vnode.data.keepAlive) {
+      if (context._isMounted) {
+        // vue-router#1212
+        // During updates, a kept-alive component's child components may
+        // change, so directly walking the tree here may call activated hooks
+        // on incorrect children. Instead we push them into a queue which will
+        // be processed after the whole patch process ended.
+        queueActivatedComponent(componentInstance);
+      } else {
+        activateChildComponent(componentInstance, true /* direct */);
+      }
     }
-    callHook(vm, 'deactivated');
-  }
-}
+  },
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  var info = hook + " hook";
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+  destroy: function destroy (vnode) {
+    var componentInstance = vnode.componentInstance;
+    if (!componentInstance._isDestroyed) {
+      if (!vnode.data.keepAlive) {
+        componentInstance.$destroy();
+      } else {
+        deactivateChildComponent(componentInstance, true /* direct */);
+      }
     }
   }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
-}
+};
 
-/*  */
+var hooksToMerge = Object.keys(componentVNodeHooks);
 
-var MAX_UPDATE_COUNT = 100;
+function createComponent (
+  Ctor,
+  data,
+  context,
+  children,
+  tag
+) {
+  if (isUndef(Ctor)) {
+    return
+  }
 
-var queue = [];
-var activatedChildren = [];
-var has = {};
-var circular = {};
-var waiting = false;
-var flushing = false;
-var index = 0;
+  var baseCtor = context.$options._base;
 
-/**
- * Reset the scheduler's state.
- */
-function resetSchedulerState () {
-  index = queue.length = activatedChildren.length = 0;
-  has = {};
-  if (process.env.NODE_ENV !== 'production') {
-    circular = {};
+  // plain options object: turn it into a constructor
+  if (isObject(Ctor)) {
+    Ctor = baseCtor.extend(Ctor);
   }
-  waiting = flushing = false;
-}
 
-// Async edge case #6566 requires saving the timestamp when event listeners are
-// attached. However, calling performance.now() has a perf overhead especially
-// if the page has thousands of event listeners. Instead, we take a timestamp
-// every time the scheduler flushes and use that for all event listeners
-// attached during that flush.
-var currentFlushTimestamp = 0;
+  // if at this stage it's not a constructor or an async component factory,
+  // reject.
+  if (typeof Ctor !== 'function') {
+    if (process.env.NODE_ENV !== 'production') {
+      warn(("Invalid Component definition: " + (String(Ctor))), context);
+    }
+    return
+  }
 
-// Async edge case fix requires storing an event listener's attach timestamp.
-var getNow = Date.now;
+  // async component
+  var asyncFactory;
+  if (isUndef(Ctor.cid)) {
+    asyncFactory = Ctor;
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
+    if (Ctor === undefined) {
+      // return a placeholder node for async component, which is rendered
+      // as a comment node but preserves all the raw information for the node.
+      // the information will be used for async server-rendering and hydration.
+      return createAsyncPlaceholder(
+        asyncFactory,
+        data,
+        context,
+        children,
+        tag
+      )
+    }
+  }
 
-// Determine what event timestamp the browser is using. Annoyingly, the
-// timestamp can either be hi-res ( relative to poge load) or low-res
-// (relative to UNIX epoch), so in order to compare time we have to use the
-// same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
-}
+  data = data || {};
 
-/**
- * Flush both queues and run the watchers.
- */
-function flushSchedulerQueue () {
-  currentFlushTimestamp = getNow();
-  flushing = true;
-  var watcher, id;
+  // resolve constructor options in case global mixins are applied after
+  // component constructor creation
+  resolveConstructorOptions(Ctor);
 
-  // Sort queue before flush.
-  // This ensures that:
-  // 1. Components are updated from parent to child. (because parent is always
-  //    created before the child)
-  // 2. A component's user watchers are run before its render watcher (because
-  //    user watchers are created before the render watcher)
-  // 3. If a component is destroyed during a parent component's watcher run,
-  //    its watchers can be skipped.
-  queue.sort(function (a, b) { return a.id - b.id; });
+  // transform component v-model data into props & events
+  if (isDef(data.model)) {
+    transformModel(Ctor.options, data);
+  }
 
-  // do not cache length because more watchers might be pushed
-  // as we run existing watchers
-  for (index = 0; index < queue.length; index++) {
-    watcher = queue[index];
-    if (watcher.before) {
-      watcher.before();
-    }
-    id = watcher.id;
-    has[id] = null;
-    watcher.run();
-    // in dev build, check and stop circular updates.
-    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
-      circular[id] = (circular[id] || 0) + 1;
-      if (circular[id] > MAX_UPDATE_COUNT) {
-        warn(
-          'You may have an infinite update loop ' + (
-            watcher.user
-              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-              : "in a component render function."
-          ),
-          watcher.vm
-        );
-        break
-      }
+  // extract props
+  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+  // functional component
+  if (isTrue(Ctor.options.functional)) {
+    return createFunctionalComponent(Ctor, propsData, data, context, children)
+  }
+
+  // extract listeners, since these needs to be treated as
+  // child component listeners instead of DOM listeners
+  var listeners = data.on;
+  // replace with listeners with .native modifier
+  // so it gets processed during parent component patch.
+  data.on = data.nativeOn;
+
+  if (isTrue(Ctor.options.abstract)) {
+    // abstract components do not keep anything
+    // other than props & listeners & slot
+
+    // work around flow
+    var slot = data.slot;
+    data = {};
+    if (slot) {
+      data.slot = slot;
     }
   }
 
-  // keep copies of post queues before resetting state
-  var activatedQueue = activatedChildren.slice();
-  var updatedQueue = queue.slice();
+  // install component management hooks onto the placeholder node
+  installComponentHooks(data);
 
-  resetSchedulerState();
+  // return a placeholder vnode
+  var name = Ctor.options.name || tag;
+  var vnode = new VNode(
+    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+    data, undefined, undefined, undefined, context,
+    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+    asyncFactory
+  );
 
-  // call component updated and activated hooks
-  callActivatedHooks(activatedQueue);
-  callUpdatedHooks(updatedQueue);
+  return vnode
+}
 
-  // devtool hook
-  /* istanbul ignore if */
-  if (devtools && config.devtools) {
-    devtools.emit('flush');
+function createComponentInstanceForVnode (
+  vnode, // we know it's MountedComponentVNode but flow doesn't
+  parent // activeInstance in lifecycle state
+) {
+  var options = {
+    _isComponent: true,
+    _parentVnode: vnode,
+    parent: parent
+  };
+  // check inline-template render functions
+  var inlineTemplate = vnode.data.inlineTemplate;
+  if (isDef(inlineTemplate)) {
+    options.render = inlineTemplate.render;
+    options.staticRenderFns = inlineTemplate.staticRenderFns;
   }
+  return new vnode.componentOptions.Ctor(options)
 }
 
-function callUpdatedHooks (queue) {
-  var i = queue.length;
-  while (i--) {
-    var watcher = queue[i];
-    var vm = watcher.vm;
-    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-      callHook(vm, 'updated');
+function installComponentHooks (data) {
+  var hooks = data.hook || (data.hook = {});
+  for (var i = 0; i < hooksToMerge.length; i++) {
+    var key = hooksToMerge[i];
+    var existing = hooks[key];
+    var toMerge = componentVNodeHooks[key];
+    if (existing !== toMerge && !(existing && existing._merged)) {
+      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
     }
   }
 }
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
-  activatedChildren.push(vm);
-}
-
-function callActivatedHooks (queue) {
-  for (var i = 0; i < queue.length; i++) {
-    queue[i]._inactive = true;
-    activateChildComponent(queue[i], true /* true */);
-  }
+function mergeHook$1 (f1, f2) {
+  var merged = function (a, b) {
+    // flow complains about extra args which is why we use any
+    f1(a, b);
+    f2(a, b);
+  };
+  merged._merged = true;
+  return merged
 }
 
-/**
- * Push a watcher into the watcher queue.
- * Jobs with duplicate IDs will be skipped unless it's
- * pushed when the queue is being flushed.
- */
-function queueWatcher (watcher) {
-  var id = watcher.id;
-  if (has[id] == null) {
-    has[id] = true;
-    if (!flushing) {
-      queue.push(watcher);
-    } else {
-      // if already flushing, splice the watcher based on its id
-      // if already past its id, it will be run next immediately.
-      var i = queue.length - 1;
-      while (i > index && queue[i].id > watcher.id) {
-        i--;
-      }
-      queue.splice(i + 1, 0, watcher);
-    }
-    // queue the flush
-    if (!waiting) {
-      waiting = true;
-
-      if (process.env.NODE_ENV !== 'production' && !config.async) {
-        flushSchedulerQueue();
-        return
-      }
-      nextTick(flushSchedulerQueue);
+// transform component v-model info (value and callback) into
+// prop and event handler respectively.
+function transformModel (options, data) {
+  var prop = (options.model && options.model.prop) || 'value';
+  var event = (options.model && options.model.event) || 'input'
+  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
+  var on = data.on || (data.on = {});
+  var existing = on[event];
+  var callback = data.model.callback;
+  if (isDef(existing)) {
+    if (
+      Array.isArray(existing)
+        ? existing.indexOf(callback) === -1
+        : existing !== callback
+    ) {
+      on[event] = [callback].concat(existing);
     }
+  } else {
+    on[event] = callback;
   }
 }
 
 /*  */
 
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
 
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType,
+  alwaysNormalize
+) {
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
+}
 
-var uid$1 = 0;
-
-/**
- * A watcher parses an expression, collects dependencies,
- * and fires callback when the expression value changes.
- * This is used for both the $watch() api and directives.
- */
-var Watcher = function Watcher (
-  vm,
-  expOrFn,
-  cb,
-  options,
-  isRenderWatcher
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  this.vm = vm;
-  if (isRenderWatcher) {
-    vm._watcher = this;
+  if (isDef(data) && isDef((data).__ob__)) {
+    process.env.NODE_ENV !== 'production' && warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
   }
-  vm._watchers.push(this);
-  // options
-  if (options) {
-    this.deep = !!options.deep;
-    this.user = !!options.user;
-    this.lazy = !!options.lazy;
-    this.sync = !!options.sync;
-    this.before = options.before;
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
+  }
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
+  }
+  // warn against non-primitive key
+  if (process.env.NODE_ENV !== 'production' &&
+    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
+      warn(
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
+      );
+    }
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if (config.isReservedTag(tag)) {
+      // platform built-in elements
+      vnode = new VNode(
+        config.parsePlatformTagName(tag), data, children,
+        undefined, undefined, context
+      );
+    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
   } else {
-    this.deep = this.user = this.lazy = this.sync = false;
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
   }
-  this.cb = cb;
-  this.id = ++uid$1; // uid for batching
-  this.active = true;
-  this.dirty = this.lazy; // for lazy watchers
-  this.deps = [];
-  this.newDeps = [];
-  this.depIds = new _Set();
-  this.newDepIds = new _Set();
-  this.expression = process.env.NODE_ENV !== 'production'
-    ? expOrFn.toString()
-    : '';
-  // parse expression for getter
-  if (typeof expOrFn === 'function') {
-    this.getter = expOrFn;
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
   } else {
-    this.getter = parsePath(expOrFn);
-    if (!this.getter) {
-      this.getter = noop;
-      process.env.NODE_ENV !== 'production' && warn(
-        "Failed watching path: \"" + expOrFn + "\" " +
-        'Watcher only accepts simple dot-delimited paths. ' +
-        'For full control, use a function instead.',
-        vm
-      );
-    }
+    return createEmptyVNode()
   }
-  this.value = this.lazy
-    ? undefined
-    : this.get();
-};
+}
 
-/**
- * Evaluate the getter, and re-collect dependencies.
- */
-Watcher.prototype.get = function get () {
-  pushTarget(this);
-  var value;
-  var vm = this.vm;
-  try {
-    value = this.getter.call(vm, vm);
-  } catch (e) {
-    if (this.user) {
-      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
-    } else {
-      throw e
-    }
-  } finally {
-    // "touch" every property so they are all tracked as
-    // dependencies for deep watching
-    if (this.deep) {
-      traverse(value);
-    }
-    popTarget();
-    this.cleanupDeps();
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
   }
-  return value
-};
-
-/**
- * Add a dependency to this directive.
- */
-Watcher.prototype.addDep = function addDep (dep) {
-  var id = dep.id;
-  if (!this.newDepIds.has(id)) {
-    this.newDepIds.add(id);
-    this.newDeps.push(dep);
-    if (!this.depIds.has(id)) {
-      dep.addSub(this);
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
     }
   }
-};
+}
 
-/**
- * Clean up for dependency collection.
- */
-Watcher.prototype.cleanupDeps = function cleanupDeps () {
-  var i = this.deps.length;
-  while (i--) {
-    var dep = this.deps[i];
-    if (!this.newDepIds.has(dep.id)) {
-      dep.removeSub(this);
-    }
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
   }
-  var tmp = this.depIds;
-  this.depIds = this.newDepIds;
-  this.newDepIds = tmp;
-  this.newDepIds.clear();
-  tmp = this.deps;
-  this.deps = this.newDeps;
-  this.newDeps = tmp;
-  this.newDeps.length = 0;
-};
+  if (isObject(data.class)) {
+    traverse(data.class);
+  }
+}
+
+/*  */
+
+function initRender (vm) {
+  vm._vnode = null; // the root of the child tree
+  vm._staticTrees = null; // v-once cached trees
+  var options = vm.$options;
+  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+  var renderContext = parentVnode && parentVnode.context;
+  vm.$slots = resolveSlots(options._renderChildren, renderContext);
+  vm.$scopedSlots = emptyObject;
+  // bind the createElement fn to this instance
+  // so that we get proper render context inside it.
+  // args order: tag, data, children, normalizationType, alwaysNormalize
+  // internal version is used by render functions compiled from templates
+  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+  // normalization is always applied for the public version, used in
+  // user-written render functions.
+  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+  // $attrs & $listeners are exposed for easier HOC creation.
+  // they need to be reactive so that HOCs using them are always updated
+  var parentData = parentVnode && parentVnode.data;
 
-/**
- * Subscriber interface.
- * Will be called when a dependency changes.
- */
-Watcher.prototype.update = function update () {
   /* istanbul ignore else */
-  if (this.lazy) {
-    this.dirty = true;
-  } else if (this.sync) {
-    this.run();
+  if (process.env.NODE_ENV !== 'production') {
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+    }, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+    }, true);
   } else {
-    queueWatcher(this);
+    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
+    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
   }
-};
+}
 
-/**
- * Scheduler job interface.
- * Will be called by the scheduler.
- */
-Watcher.prototype.run = function run () {
-  if (this.active) {
-    var value = this.get();
-    if (
-      value !== this.value ||
-      // Deep watchers and watchers on Object/Arrays should fire even
-      // when the value is the same, because the value may
-      // have mutated.
-      isObject(value) ||
-      this.deep
-    ) {
-      // set new value
-      var oldValue = this.value;
-      this.value = value;
-      if (this.user) {
-        try {
-          this.cb.call(this.vm, value, oldValue);
-        } catch (e) {
-          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-        }
-      } else {
-        this.cb.call(this.vm, value, oldValue);
-      }
-    }
-  }
-};
+var currentRenderingInstance = null;
 
-/**
- * Evaluate the value of the watcher.
- * This only gets called for lazy watchers.
- */
-Watcher.prototype.evaluate = function evaluate () {
-  this.value = this.get();
-  this.dirty = false;
-};
+function renderMixin (Vue) {
+  // install runtime convenience helpers
+  installRenderHelpers(Vue.prototype);
 
-/**
- * Depend on all deps collected by this watcher.
- */
-Watcher.prototype.depend = function depend () {
-  var i = this.deps.length;
-  while (i--) {
-    this.deps[i].depend();
-  }
-};
+  Vue.prototype.$nextTick = function (fn) {
+    return nextTick(fn, this)
+  };
 
-/**
- * Remove self from all dependencies' subscriber list.
- */
-Watcher.prototype.teardown = function teardown () {
-  if (this.active) {
-    // remove self from vm's watcher list
-    // this is a somewhat expensive operation so we skip it
-    // if the vm is being destroyed.
-    if (!this.vm._isBeingDestroyed) {
-      remove(this.vm._watchers, this);
+  Vue.prototype._render = function () {
+    var vm = this;
+    var ref = vm.$options;
+    var render = ref.render;
+    var _parentVnode = ref._parentVnode;
+
+    if (_parentVnode) {
+      vm.$scopedSlots = normalizeScopedSlots(
+        _parentVnode.data.scopedSlots,
+        vm.$slots
+      );
+    }
+
+    // set parent vnode. this allows render functions to have access
+    // to the data on the placeholder node.
+    vm.$vnode = _parentVnode;
+    // render self
+    var vnode;
+    try {
+      // There's no need to maintain a stack becaues all render fns are called
+      // separately from one another. Nested component's render fns are called
+      // when parent component is patched.
+      currentRenderingInstance = vm;
+      vnode = render.call(vm._renderProxy, vm.$createElement);
+    } catch (e) {
+      handleError(e, vm, "render");
+      // return error render result,
+      // or previous vnode to prevent render error causing blank component
+      /* istanbul ignore else */
+      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
+        try {
+          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+        } catch (e) {
+          handleError(e, vm, "renderError");
+          vnode = vm._vnode;
+        }
+      } else {
+        vnode = vm._vnode;
+      }
+    } finally {
+      currentRenderingInstance = null;
     }
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].removeSub(this);
+    // if the returned array contains only a single node, allow it
+    if (Array.isArray(vnode) && vnode.length === 1) {
+      vnode = vnode[0];
     }
-    this.active = false;
-  }
-};
+    // return empty vnode in case the render function errored out
+    if (!(vnode instanceof VNode)) {
+      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
+        warn(
+          'Multiple root nodes returned from render function. Render function ' +
+          'should return a single root node.',
+          vm
+        );
+      }
+      vnode = createEmptyVNode();
+    }
+    // set parent
+    vnode.parent = _parentVnode;
+    return vnode
+  };
+}
 
 /*  */
 
-var sharedPropertyDefinition = {
-  enumerable: true,
-  configurable: true,
-  get: noop,
-  set: noop
-};
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
+  }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
+}
 
-function proxy (target, sourceKey, key) {
-  sharedPropertyDefinition.get = function proxyGetter () {
-    return this[sourceKey][key]
-  };
-  sharedPropertyDefinition.set = function proxySetter (val) {
-    this[sourceKey][key] = val;
-  };
-  Object.defineProperty(target, key, sharedPropertyDefinition);
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
+) {
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
 }
 
-function initState (vm) {
-  vm._watchers = [];
-  var opts = vm.$options;
-  if (opts.props) { initProps(vm, opts.props); }
-  if (opts.methods) { initMethods(vm, opts.methods); }
-  if (opts.data) {
-    initData(vm);
-  } else {
-    observe(vm._data = {}, true /* asRootData */);
+function resolveAsyncComponent (
+  factory,
+  baseCtor
+) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
   }
-  if (opts.computed) { initComputed(vm, opts.computed); }
-  if (opts.watch && opts.watch !== nativeWatch) {
-    initWatch(vm, opts.watch);
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
   }
-}
 
-function initProps (vm, propsOptions) {
-  var propsData = vm.$options.propsData || {};
-  var props = vm._props = {};
-  // cache prop keys so that future props updates can iterate using Array
-  // instead of dynamic object key enumeration.
-  var keys = vm.$options._propKeys = [];
-  var isRoot = !vm.$parent;
-  // root instance props should be converted
-  if (!isRoot) {
-    toggleObserving(false);
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
   }
-  var loop = function ( key ) {
-    keys.push(key);
-    var value = validateProp(key, propsOptions, propsData, vm);
-    /* istanbul ignore else */
-    if (process.env.NODE_ENV !== 'production') {
-      var hyphenatedKey = hyphenate(key);
-      if (isReservedAttribute(hyphenatedKey) ||
-          config.isReservedAttr(hyphenatedKey)) {
-        warn(
-          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-          vm
-        );
+
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners)) {
+    // already pending
+    factory.owners.push(owner);
+  } else {
+    var owners = factory.owners = [owner];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = owners.length; i < l; i++) {
+        (owners[i]).$forceUpdate();
       }
-      defineReactive$$1(props, key, value, function () {
-        if (!isRoot && !isUpdatingChildComponent) {
-          warn(
-            "Avoid mutating a prop directly since the value will be " +
-            "overwritten whenever the parent component re-renders. " +
-            "Instead, use a data or computed property based on the prop's " +
-            "value. Prop being mutated: \"" + key + "\"",
-            vm
-          );
-        }
-      });
-    } else {
-      defineReactive$$1(props, key, value);
-    }
-    // static props are already proxied on the component's prototype
-    // during Vue.extend(). We only need to proxy props defined at
-    // instantiation here.
-    if (!(key in vm)) {
-      proxy(vm, "_props", key);
-    }
-  };
 
-  for (var key in propsOptions) loop( key );
-  toggleObserving(true);
-}
+      if (renderCompleted) {
+        owners.length = 0;
+      }
+    };
 
-function initData (vm) {
-  var data = vm.$options.data;
-  data = vm._data = typeof data === 'function'
-    ? getData(data, vm)
-    : data || {};
-  if (!isPlainObject(data)) {
-    data = {};
-    process.env.NODE_ENV !== 'production' && warn(
-      'data functions should return an object:\n' +
-      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-      vm
-    );
-  }
-  // proxy data on instance
-  var keys = Object.keys(data);
-  var props = vm.$options.props;
-  var methods = vm.$options.methods;
-  var i = keys.length;
-  while (i--) {
-    var key = keys[i];
-    if (process.env.NODE_ENV !== 'production') {
-      if (methods && hasOwn(methods, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a data property."),
-          vm
-        );
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        owners.length = 0;
       }
-    }
-    if (props && hasOwn(props, key)) {
+    });
+
+    var reject = once(function (reason) {
       process.env.NODE_ENV !== 'production' && warn(
-        "The data property \"" + key + "\" is already declared as a prop. " +
-        "Use prop default value instead.",
-        vm
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
       );
-    } else if (!isReserved(key)) {
-      proxy(vm, "_data", key);
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
+      }
+    });
+
+    var res = factory(resolve, reject);
+
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
+
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
+
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
+
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                process.env.NODE_ENV !== 'production'
+                  ? ("timeout (" + (res.timeout) + "ms)")
+                  : null
+              );
+            }
+          }, res.timeout);
+        }
+      }
     }
-  }
-  // observe data
-  observe(data, true /* asRootData */);
-}
 
-function getData (data, vm) {
-  // #7573 disable dep collection when invoking data getters
-  pushTarget();
-  try {
-    return data.call(vm, vm)
-  } catch (e) {
-    handleError(e, vm, "data()");
-    return {}
-  } finally {
-    popTarget();
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
   }
 }
 
-var computedWatcherOptions = { lazy: true };
-
-function initComputed (vm, computed) {
-  // $flow-disable-line
-  var watchers = vm._computedWatchers = Object.create(null);
-  // computed properties are just getters during SSR
-  var isSSR = isServerRendering();
+/*  */
 
-  for (var key in computed) {
-    var userDef = computed[key];
-    var getter = typeof userDef === 'function' ? userDef : userDef.get;
-    if (process.env.NODE_ENV !== 'production' && getter == null) {
-      warn(
-        ("Getter is missing for computed property \"" + key + "\"."),
-        vm
-      );
-    }
+function isAsyncPlaceholder (node) {
+  return node.isComment && node.asyncFactory
+}
 
-    if (!isSSR) {
-      // create internal watcher for the computed property.
-      watchers[key] = new Watcher(
-        vm,
-        getter || noop,
-        noop,
-        computedWatcherOptions
-      );
-    }
+/*  */
 
-    // component-defined computed properties are already defined on the
-    // component prototype. We only need to define computed properties defined
-    // at instantiation here.
-    if (!(key in vm)) {
-      defineComputed(vm, key, userDef);
-    } else if (process.env.NODE_ENV !== 'production') {
-      if (key in vm.$data) {
-        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-      } else if (vm.$options.props && key in vm.$options.props) {
-        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+function getFirstComponentChild (children) {
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      var c = children[i];
+      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+        return c
       }
     }
   }
 }
 
-function defineComputed (
-  target,
-  key,
-  userDef
-) {
-  var shouldCache = !isServerRendering();
-  if (typeof userDef === 'function') {
-    sharedPropertyDefinition.get = shouldCache
-      ? createComputedGetter(key)
-      : createGetterInvoker(userDef);
-    sharedPropertyDefinition.set = noop;
-  } else {
-    sharedPropertyDefinition.get = userDef.get
-      ? shouldCache && userDef.cache !== false
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef.get)
-      : noop;
-    sharedPropertyDefinition.set = userDef.set || noop;
-  }
-  if (process.env.NODE_ENV !== 'production' &&
-      sharedPropertyDefinition.set === noop) {
-    sharedPropertyDefinition.set = function () {
-      warn(
-        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-        this
-      );
-    };
-  }
-  Object.defineProperty(target, key, sharedPropertyDefinition);
-}
+/*  */
 
-function createComputedGetter (key) {
-  return function computedGetter () {
-    var watcher = this._computedWatchers && this._computedWatchers[key];
-    if (watcher) {
-      if (watcher.dirty) {
-        watcher.evaluate();
-      }
-      if (Dep.target) {
-        watcher.depend();
-      }
-      return watcher.value
-    }
+/*  */
+
+function initEvents (vm) {
+  vm._events = Object.create(null);
+  vm._hasHookEvent = false;
+  // init parent attached events
+  var listeners = vm.$options._parentListeners;
+  if (listeners) {
+    updateComponentListeners(vm, listeners);
   }
 }
 
-function createGetterInvoker(fn) {
-  return function computedGetter () {
-    return fn.call(this, this)
-  }
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
 }
 
-function initMethods (vm, methods) {
-  var props = vm.$options.props;
-  for (var key in methods) {
-    if (process.env.NODE_ENV !== 'production') {
-      if (typeof methods[key] !== 'function') {
-        warn(
-          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-          "Did you reference the function correctly?",
-          vm
-        );
-      }
-      if (props && hasOwn(props, key)) {
-        warn(
-          ("Method \"" + key + "\" has already been defined as a prop."),
-          vm
-        );
-      }
-      if ((key in vm) && isReserved(key)) {
-        warn(
-          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-          "Avoid defining component methods that start with _ or $."
-        );
-      }
-    }
-    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-  }
+function remove$1 (event, fn) {
+  target.$off(event, fn);
 }
 
-function initWatch (vm, watch) {
-  for (var key in watch) {
-    var handler = watch[key];
-    if (Array.isArray(handler)) {
-      for (var i = 0; i < handler.length; i++) {
-        createWatcher(vm, key, handler[i]);
-      }
-    } else {
-      createWatcher(vm, key, handler);
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
     }
   }
 }
 
-function createWatcher (
+function updateComponentListeners (
   vm,
-  expOrFn,
-  handler,
-  options
+  listeners,
+  oldListeners
 ) {
-  if (isPlainObject(handler)) {
-    options = handler;
-    handler = handler.handler;
-  }
-  if (typeof handler === 'string') {
-    handler = vm[handler];
-  }
-  return vm.$watch(expOrFn, handler, options)
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
 }
 
-function stateMixin (Vue) {
-  // flow somehow has problems with directly declared definition object
-  // when using Object.defineProperty, so we have to procedurally build up
-  // the object here.
-  var dataDef = {};
-  dataDef.get = function () { return this._data };
-  var propsDef = {};
-  propsDef.get = function () { return this._props };
-  if (process.env.NODE_ENV !== 'production') {
-    dataDef.set = function () {
-      warn(
-        'Avoid replacing instance root $data. ' +
-        'Use nested data properties instead.',
-        this
-      );
-    };
-    propsDef.set = function () {
-      warn("$props is readonly.", this);
-    };
-  }
-  Object.defineProperty(Vue.prototype, '$data', dataDef);
-  Object.defineProperty(Vue.prototype, '$props', propsDef);
+function eventsMixin (Vue) {
+  var hookRE = /^hook:/;
+  Vue.prototype.$on = function (event, fn) {
+    var vm = this;
+    if (Array.isArray(event)) {
+      for (var i = 0, l = event.length; i < l; i++) {
+        vm.$on(event[i], fn);
+      }
+    } else {
+      (vm._events[event] || (vm._events[event] = [])).push(fn);
+      // optimize hook:event cost by using a boolean flag marked at registration
+      // instead of a hash lookup
+      if (hookRE.test(event)) {
+        vm._hasHookEvent = true;
+      }
+    }
+    return vm
+  };
 
-  Vue.prototype.$set = set;
-  Vue.prototype.$delete = del;
+  Vue.prototype.$once = function (event, fn) {
+    var vm = this;
+    function on () {
+      vm.$off(event, on);
+      fn.apply(vm, arguments);
+    }
+    on.fn = fn;
+    vm.$on(event, on);
+    return vm
+  };
 
-  Vue.prototype.$watch = function (
-    expOrFn,
-    cb,
-    options
-  ) {
+  Vue.prototype.$off = function (event, fn) {
     var vm = this;
-    if (isPlainObject(cb)) {
-      return createWatcher(vm, expOrFn, cb, options)
+    // all
+    if (!arguments.length) {
+      vm._events = Object.create(null);
+      return vm
+    }
+    // array of events
+    if (Array.isArray(event)) {
+      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+        vm.$off(event[i$1], fn);
+      }
+      return vm
+    }
+    // specific event
+    var cbs = vm._events[event];
+    if (!cbs) {
+      return vm
+    }
+    if (!fn) {
+      vm._events[event] = null;
+      return vm
+    }
+    // specific handler
+    var cb;
+    var i = cbs.length;
+    while (i--) {
+      cb = cbs[i];
+      if (cb === fn || cb.fn === fn) {
+        cbs.splice(i, 1);
+        break
+      }
     }
-    options = options || {};
-    options.user = true;
-    var watcher = new Watcher(vm, expOrFn, cb, options);
-    if (options.immediate) {
-      try {
-        cb.call(vm, watcher.value);
-      } catch (error) {
-        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+    return vm
+  };
+
+  Vue.prototype.$emit = function (event) {
+    var vm = this;
+    if (process.env.NODE_ENV !== 'production') {
+      var lowerCaseEvent = event.toLowerCase();
+      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+        tip(
+          "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+          (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+          "Note that HTML attributes are case-insensitive and you cannot use " +
+          "v-on to listen to camelCase events when using in-DOM templates. " +
+          "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+        );
       }
     }
-    return function unwatchFn () {
-      watcher.teardown();
+    var cbs = vm._events[event];
+    if (cbs) {
+      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+      var args = toArray(arguments, 1);
+      var info = "event handler for \"" + event + "\"";
+      for (var i = 0, l = cbs.length; i < l; i++) {
+        invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      }
     }
+    return vm
   };
 }
 
 /*  */
 
-function initProvide (vm) {
-  var provide = vm.$options.provide;
-  if (provide) {
-    vm._provided = typeof provide === 'function'
-      ? provide.call(vm)
-      : provide;
-  }
-}
+var activeInstance = null;
+var isUpdatingChildComponent = false;
 
-function initInjections (vm) {
-  var result = resolveInject(vm.$options.inject, vm);
-  if (result) {
-    toggleObserving(false);
-    Object.keys(result).forEach(function (key) {
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production') {
-        defineReactive$$1(vm, key, result[key], function () {
-          warn(
-            "Avoid mutating an injected value directly since the changes will be " +
-            "overwritten whenever the provided component re-renders. " +
-            "injection being mutated: \"" + key + "\"",
-            vm
-          );
-        });
-      } else {
-        defineReactive$$1(vm, key, result[key]);
-      }
-    });
-    toggleObserving(true);
+function setActiveInstance(vm) {
+  var prevActiveInstance = activeInstance;
+  activeInstance = vm;
+  return function () {
+    activeInstance = prevActiveInstance;
   }
 }
 
-function resolveInject (inject, vm) {
-  if (inject) {
-    // inject is :any because flow is not smart enough to figure out cached
-    var result = Object.create(null);
-    var keys = hasSymbol
-      ? Reflect.ownKeys(inject)
-      : Object.keys(inject);
+function initLifecycle (vm) {
+  var options = vm.$options;
 
-    for (var i = 0; i < keys.length; i++) {
-      var key = keys[i];
-      // #6574 in case the inject object is observed...
-      if (key === '__ob__') { continue }
-      var provideKey = inject[key].from;
-      var source = vm;
-      while (source) {
-        if (source._provided && hasOwn(source._provided, provideKey)) {
-          result[key] = source._provided[provideKey];
-          break
-        }
-        source = source.$parent;
-      }
-      if (!source) {
-        if ('default' in inject[key]) {
-          var provideDefault = inject[key].default;
-          result[key] = typeof provideDefault === 'function'
-            ? provideDefault.call(vm)
-            : provideDefault;
-        } else if (process.env.NODE_ENV !== 'production') {
-          warn(("Injection \"" + key + "\" not found"), vm);
-        }
-      }
+  // locate first non-abstract parent
+  var parent = options.parent;
+  if (parent && !options.abstract) {
+    while (parent.$options.abstract && parent.$parent) {
+      parent = parent.$parent;
     }
-    return result
+    parent.$children.push(vm);
   }
-}
 
-/*  */
-
-function normalizeScopedSlots (
-  slots,
-  normalSlots
-) {
-  var res;
-  if (!slots) {
-    res = {};
-  } else if (slots._normalized) {
-    return slots
-  } else {
-    res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-      }
-    }
-  }
-  // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
-    }
-  }
-  res._normalized = true;
-  res.$stable = slots ? slots.$stable : true;
-  return res
-}
+  vm.$parent = parent;
+  vm.$root = parent ? parent.$root : vm;
 
-function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    if ( scope === void 0 ) scope = {};
+  vm.$children = [];
+  vm.$refs = {};
 
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
-      ? [res] // single vnode
-      : normalizeChildren(res)
-  };
-  // proxy scoped slots on normal $slots
-  if (!hasOwn(normalSlots, key)) {
-    Object.defineProperty(normalSlots, key, {
-      get: normalized
-    });
-  }
-  return normalized
+  vm._watcher = null;
+  vm._inactive = null;
+  vm._directInactive = false;
+  vm._isMounted = false;
+  vm._isDestroyed = false;
+  vm._isBeingDestroyed = false;
 }
 
-function proxyNormalSlot(slots, key) {
-  return function () { return slots[key]; }
-}
+function lifecycleMixin (Vue) {
+  Vue.prototype._update = function (vnode, hydrating) {
+    var vm = this;
+    var prevEl = vm.$el;
+    var prevVnode = vm._vnode;
+    var restoreActiveInstance = setActiveInstance(vm);
+    vm._vnode = vnode;
+    // Vue.prototype.__patch__ is injected in entry points
+    // based on the rendering backend used.
+    if (!prevVnode) {
+      // initial render
+      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+    } else {
+      // updates
+      vm.$el = vm.__patch__(prevVnode, vnode);
+    }
+    restoreActiveInstance();
+    // update __vue__ reference
+    if (prevEl) {
+      prevEl.__vue__ = null;
+    }
+    if (vm.$el) {
+      vm.$el.__vue__ = vm;
+    }
+    // if parent is an HOC, update its $el as well
+    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+      vm.$parent.$el = vm.$el;
+    }
+    // updated hook is called by the scheduler to ensure that children are
+    // updated in a parent's updated hook.
+  };
 
-/*  */
+  Vue.prototype.$forceUpdate = function () {
+    var vm = this;
+    if (vm._watcher) {
+      vm._watcher.update();
+    }
+  };
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
-) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
+  Vue.prototype.$destroy = function () {
+    var vm = this;
+    if (vm._isBeingDestroyed) {
+      return
     }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
+    callHook(vm, 'beforeDestroy');
+    vm._isBeingDestroyed = true;
+    // remove self from parent
+    var parent = vm.$parent;
+    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+      remove(parent.$children, vm);
     }
-  } else if (isObject(val)) {
-    if (hasSymbol && val[Symbol.iterator]) {
-      ret = [];
-      var iterator = val[Symbol.iterator]();
-      var result = iterator.next();
-      while (!result.done) {
-        ret.push(render(result.value, ret.length));
-        result = iterator.next();
-      }
-    } else {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
-      }
+    // teardown watchers
+    if (vm._watcher) {
+      vm._watcher.teardown();
+    }
+    var i = vm._watchers.length;
+    while (i--) {
+      vm._watchers[i].teardown();
+    }
+    // remove reference from data ob
+    // frozen object may not have observer.
+    if (vm._data.__ob__) {
+      vm._data.__ob__.vmCount--;
+    }
+    // call the last hook...
+    vm._isDestroyed = true;
+    // invoke destroy hooks on current rendered tree
+    vm.__patch__(vm._vnode, null);
+    // fire destroyed hook
+    callHook(vm, 'destroyed');
+    // turn off all instance listeners.
+    vm.$off();
+    // remove __vue__ reference
+    if (vm.$el) {
+      vm.$el.__vue__ = null;
     }
-  }
-  if (!isDef(ret)) {
-    ret = [];
-  }
-  (ret)._isVList = true;
-  return ret
+    // release circular reference (#6759)
+    if (vm.$vnode) {
+      vm.$vnode.parent = null;
+    }
+  };
 }
 
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
+function mountComponent (
+  vm,
+  el,
+  hydrating
 ) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {
+  vm.$el = el;
+  if (!vm.$options.render) {
+    vm.$options.render = createEmptyVNode;
+    if (process.env.NODE_ENV !== 'production') {
+      /* istanbul ignore if */
+      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+        vm.$options.el || el) {
         warn(
-          'slot v-bind without argument expects an Object',
-          this
+          'You are using the runtime-only build of Vue where the template ' +
+          'compiler is not available. Either pre-compile the templates into ' +
+          'render functions, or use the compiler-included build.',
+          vm
+        );
+      } else {
+        warn(
+          'Failed to mount component: template or render function not defined.',
+          vm
         );
       }
-      props = extend(extend({}, bindObject), props);
     }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
   }
+  callHook(vm, 'beforeMount');
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
-}
+  var updateComponent;
+  /* istanbul ignore if */
+  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {
+    updateComponent = function () {
+      var name = vm._name;
+      var id = vm._uid;
+      var startTag = "vue-perf-start:" + id;
+      var endTag = "vue-perf-end:" + id;
 
-/*  */
+      mark(startTag);
+      var vnode = vm._render();
+      mark(endTag);
+      measure(("vue " + name + " render"), startTag, endTag);
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+      mark(startTag);
+      vm._update(vnode, hydrating);
+      mark(endTag);
+      measure(("vue " + name + " patch"), startTag, endTag);
+    };
+  } else {
+    updateComponent = function () {
+      vm._update(vm._render(), hydrating);
+    };
+  }
 
-/*  */
+  // we set this to vm._watcher inside the watcher's constructor
+  // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+  // component's mounted hook), which relies on vm._watcher being already defined
+  new Watcher(vm, updateComponent, noop, {
+    before: function before () {
+      if (vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'beforeUpdate');
+      }
+    }
+  }, true /* isRenderWatcher */);
+  hydrating = false;
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
+  // manually mounted instance, call mounted on self
+  // mounted is called for render-created child components in its inserted hook
+  if (vm.$vnode == null) {
+    vm._isMounted = true;
+    callHook(vm, 'mounted');
   }
+  return vm
 }
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
 ) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
+  if (process.env.NODE_ENV !== 'production') {
+    isUpdatingChildComponent = true;
   }
-}
-
-/*  */
 
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
-) {
-  if (value) {
-    if (!isObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-bind without argument expects an Object or Array value',
-        this
-      );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
-      }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
 
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
 
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
 
-/*  */
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
   }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
+  vm.$options._renderChildren = renderChildren;
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
 
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
-      }
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
   }
-}
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
+
+  if (process.env.NODE_ENV !== 'production') {
+    isUpdatingChildComponent = false;
+  }
 }
 
-/*  */
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
 
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      process.env.NODE_ENV !== 'production' && warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
     }
+  } else if (vm._directInactive) {
+    return
+  }
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'activated');
   }
-  return data
 }
 
-/*  */
-
-function bindDynamicKeys (baseObj, values) {
-  for (var i = 0; i < values.length; i += 2) {
-    var key = values[i];
-    if (typeof key === 'string' && key) {
-      baseObj[values[i]] = values[i + 1];
-    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
-      warn(
-        ("Invalid value for dynamic directive argument (expected string or null): " + key),
-        this
-      );
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
     }
   }
-  return baseObj
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
 }
 
-// helper to dynamically append modifier runtime markers to event names.
-// ensure only append when value is already string, otherwise it will be cast
-// to string and cause the type check to miss.
-function prependModifier (value, symbol) {
-  return typeof value === 'string' ? symbol + value : value
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  var info = hook + " hook";
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
+  }
+  popTarget();
 }
 
 /*  */
 
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-  target._d = bindDynamicKeys;
-  target._p = prependModifier;
-}
+var MAX_UPDATE_COUNT = 100;
 
-/*  */
+var queue = [];
+var activatedChildren = [];
+var has = {};
+var circular = {};
+var waiting = false;
+var flushing = false;
+var index = 0;
 
-function FunctionalRenderContext (
-  data,
-  props,
-  children,
-  parent,
-  Ctor
-) {
-  var options = Ctor.options;
-  // ensure the createElement function in functional components
-  // gets a unique context - this is necessary for correct named slot check
-  var contextVm;
-  if (hasOwn(parent, '_uid')) {
-    contextVm = Object.create(parent);
-    // $flow-disable-line
-    contextVm._original = parent;
-  } else {
-    // the context vm passed in is a functional context as well.
-    // in this case we want to make sure we are able to get a hold to the
-    // real context instance.
-    contextVm = parent;
-    // $flow-disable-line
-    parent = parent._original;
+/**
+ * Reset the scheduler's state.
+ */
+function resetSchedulerState () {
+  index = queue.length = activatedChildren.length = 0;
+  has = {};
+  if (process.env.NODE_ENV !== 'production') {
+    circular = {};
   }
-  var isCompiled = isTrue(options._compiled);
-  var needNormalization = !isCompiled;
+  waiting = flushing = false;
+}
 
-  this.data = data;
-  this.props = props;
-  this.children = children;
-  this.parent = parent;
-  this.listeners = data.on || emptyObject;
-  this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+// Async edge case #6566 requires saving the timestamp when event listeners are
+// attached. However, calling performance.now() has a perf overhead especially
+// if the page has thousands of event listeners. Instead, we take a timestamp
+// every time the scheduler flushes and use that for all event listeners
+// attached during that flush.
+var currentFlushTimestamp = 0;
 
-  Object.defineProperty(this, 'scopedSlots', ({
-    enumerable: true,
-    get: function get () {
-      return normalizeScopedSlots(data.scopedSlots, this.slots())
-    }
-  }));
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
 
-  // support for compiled functional template
-  if (isCompiled) {
-    // exposing $options for renderStatic()
-    this.$options = options;
-    // pre-resolve slots for renderSlot()
-    this.$slots = this.slots();
-    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
-  }
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res (relative to page load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
 
-  if (options._scopeId) {
-    this._c = function (a, b, c, d) {
-      var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-      if (vnode && !Array.isArray(vnode)) {
-        vnode.fnScopeId = options._scopeId;
-        vnode.fnContext = parent;
+/**
+ * Flush both queues and run the watchers.
+ */
+function flushSchedulerQueue () {
+  currentFlushTimestamp = getNow();
+  flushing = true;
+  var watcher, id;
+
+  // Sort queue before flush.
+  // This ensures that:
+  // 1. Components are updated from parent to child. (because parent is always
+  //    created before the child)
+  // 2. A component's user watchers are run before its render watcher (because
+  //    user watchers are created before the render watcher)
+  // 3. If a component is destroyed during a parent component's watcher run,
+  //    its watchers can be skipped.
+  queue.sort(function (a, b) { return a.id - b.id; });
+
+  // do not cache length because more watchers might be pushed
+  // as we run existing watchers
+  for (index = 0; index < queue.length; index++) {
+    watcher = queue[index];
+    if (watcher.before) {
+      watcher.before();
+    }
+    id = watcher.id;
+    has[id] = null;
+    watcher.run();
+    // in dev build, check and stop circular updates.
+    if (process.env.NODE_ENV !== 'production' && has[id] != null) {
+      circular[id] = (circular[id] || 0) + 1;
+      if (circular[id] > MAX_UPDATE_COUNT) {
+        warn(
+          'You may have an infinite update loop ' + (
+            watcher.user
+              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+              : "in a component render function."
+          ),
+          watcher.vm
+        );
+        break
       }
-      return vnode
-    };
-  } else {
-    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
+    }
   }
-}
 
-installRenderHelpers(FunctionalRenderContext.prototype);
+  // keep copies of post queues before resetting state
+  var activatedQueue = activatedChildren.slice();
+  var updatedQueue = queue.slice();
 
-function createFunctionalComponent (
-  Ctor,
-  propsData,
-  data,
-  contextVm,
-  children
-) {
-  var options = Ctor.options;
-  var props = {};
-  var propOptions = options.props;
-  if (isDef(propOptions)) {
-    for (var key in propOptions) {
-      props[key] = validateProp(key, propOptions, propsData || emptyObject);
-    }
-  } else {
-    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-    if (isDef(data.props)) { mergeProps(props, data.props); }
-  }
+  resetSchedulerState();
 
-  var renderContext = new FunctionalRenderContext(
-    data,
-    props,
-    children,
-    contextVm,
-    Ctor
-  );
+  // call component updated and activated hooks
+  callActivatedHooks(activatedQueue);
+  callUpdatedHooks(updatedQueue);
 
-  var vnode = options.render.call(null, renderContext._c, renderContext);
+  // devtool hook
+  /* istanbul ignore if */
+  if (devtools && config.devtools) {
+    devtools.emit('flush');
+  }
+}
 
-  if (vnode instanceof VNode) {
-    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-  } else if (Array.isArray(vnode)) {
-    var vnodes = normalizeChildren(vnode) || [];
-    var res = new Array(vnodes.length);
-    for (var i = 0; i < vnodes.length; i++) {
-      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
+function callUpdatedHooks (queue) {
+  var i = queue.length;
+  while (i--) {
+    var watcher = queue[i];
+    var vm = watcher.vm;
+    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+      callHook(vm, 'updated');
     }
-    return res
   }
 }
 
-function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-  // #7817 clone node before setting fnContext, otherwise if the node is reused
-  // (e.g. it was from a cached normal slot) the fnContext causes named slots
-  // that should not be matched to match.
-  var clone = cloneVNode(vnode);
-  clone.fnContext = contextVm;
-  clone.fnOptions = options;
-  if (process.env.NODE_ENV !== 'production') {
-    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-  }
-  if (data.slot) {
-    (clone.data || (clone.data = {})).slot = data.slot;
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
+  activatedChildren.push(vm);
+}
+
+function callActivatedHooks (queue) {
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]._inactive = true;
+    activateChildComponent(queue[i], true /* true */);
   }
-  return clone
 }
 
-function mergeProps (to, from) {
-  for (var key in from) {
-    to[camelize(key)] = from[key];
+/**
+ * Push a watcher into the watcher queue.
+ * Jobs with duplicate IDs will be skipped unless it's
+ * pushed when the queue is being flushed.
+ */
+function queueWatcher (watcher) {
+  var id = watcher.id;
+  if (has[id] == null) {
+    has[id] = true;
+    if (!flushing) {
+      queue.push(watcher);
+    } else {
+      // if already flushing, splice the watcher based on its id
+      // if already past its id, it will be run next immediately.
+      var i = queue.length - 1;
+      while (i > index && queue[i].id > watcher.id) {
+        i--;
+      }
+      queue.splice(i + 1, 0, watcher);
+    }
+    // queue the flush
+    if (!waiting) {
+      waiting = true;
+
+      if (process.env.NODE_ENV !== 'production' && !config.async) {
+        flushSchedulerQueue();
+        return
+      }
+      nextTick(flushSchedulerQueue);
+    }
   }
 }
 
 /*  */
 
-/*  */
 
-/*  */
 
-/*  */
+var uid$2 = 0;
 
-// inline hooks to be invoked on component VNodes during patch
-var componentVNodeHooks = {
-  init: function init (vnode, hydrating) {
-    if (
-      vnode.componentInstance &&
-      !vnode.componentInstance._isDestroyed &&
-      vnode.data.keepAlive
-    ) {
-      // kept-alive components, treat as a patch
-      var mountedNode = vnode; // work around flow
-      componentVNodeHooks.prepatch(mountedNode, mountedNode);
-    } else {
-      var child = vnode.componentInstance = createComponentInstanceForVnode(
-        vnode,
-        activeInstance
+/**
+ * A watcher parses an expression, collects dependencies,
+ * and fires callback when the expression value changes.
+ * This is used for both the $watch() api and directives.
+ */
+var Watcher = function Watcher (
+  vm,
+  expOrFn,
+  cb,
+  options,
+  isRenderWatcher
+) {
+  this.vm = vm;
+  if (isRenderWatcher) {
+    vm._watcher = this;
+  }
+  vm._watchers.push(this);
+  // options
+  if (options) {
+    this.deep = !!options.deep;
+    this.user = !!options.user;
+    this.lazy = !!options.lazy;
+    this.sync = !!options.sync;
+    this.before = options.before;
+  } else {
+    this.deep = this.user = this.lazy = this.sync = false;
+  }
+  this.cb = cb;
+  this.id = ++uid$2; // uid for batching
+  this.active = true;
+  this.dirty = this.lazy; // for lazy watchers
+  this.deps = [];
+  this.newDeps = [];
+  this.depIds = new _Set();
+  this.newDepIds = new _Set();
+  this.expression = process.env.NODE_ENV !== 'production'
+    ? expOrFn.toString()
+    : '';
+  // parse expression for getter
+  if (typeof expOrFn === 'function') {
+    this.getter = expOrFn;
+  } else {
+    this.getter = parsePath(expOrFn);
+    if (!this.getter) {
+      this.getter = noop;
+      process.env.NODE_ENV !== 'production' && warn(
+        "Failed watching path: \"" + expOrFn + "\" " +
+        'Watcher only accepts simple dot-delimited paths. ' +
+        'For full control, use a function instead.',
+        vm
       );
-      child.$mount(hydrating ? vnode.elm : undefined, hydrating);
     }
-  },
-
-  prepatch: function prepatch (oldVnode, vnode) {
-    var options = vnode.componentOptions;
-    var child = vnode.componentInstance = oldVnode.componentInstance;
-    updateChildComponent(
-      child,
-      options.propsData, // updated props
-      options.listeners, // updated listeners
-      vnode, // new parent vnode
-      options.children // new children
-    );
-  },
+  }
+  this.value = this.lazy
+    ? undefined
+    : this.get();
+};
 
-  insert: function insert (vnode) {
-    var context = vnode.context;
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isMounted) {
-      componentInstance._isMounted = true;
-      callHook(componentInstance, 'mounted');
-    }
-    if (vnode.data.keepAlive) {
-      if (context._isMounted) {
-        // vue-router#1212
-        // During updates, a kept-alive component's child components may
-        // change, so directly walking the tree here may call activated hooks
-        // on incorrect children. Instead we push them into a queue which will
-        // be processed after the whole patch process ended.
-        queueActivatedComponent(componentInstance);
-      } else {
-        activateChildComponent(componentInstance, true /* direct */);
-      }
+/**
+ * Evaluate the getter, and re-collect dependencies.
+ */
+Watcher.prototype.get = function get () {
+  pushTarget(this);
+  var value;
+  var vm = this.vm;
+  try {
+    value = this.getter.call(vm, vm);
+  } catch (e) {
+    if (this.user) {
+      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    } else {
+      throw e
     }
-  },
-
-  destroy: function destroy (vnode) {
-    var componentInstance = vnode.componentInstance;
-    if (!componentInstance._isDestroyed) {
-      if (!vnode.data.keepAlive) {
-        componentInstance.$destroy();
-      } else {
-        deactivateChildComponent(componentInstance, true /* direct */);
-      }
+  } finally {
+    // "touch" every property so they are all tracked as
+    // dependencies for deep watching
+    if (this.deep) {
+      traverse(value);
     }
+    popTarget();
+    this.cleanupDeps();
   }
+  return value
 };
 
-var hooksToMerge = Object.keys(componentVNodeHooks);
-
-function createComponent (
-  Ctor,
-  data,
-  context,
-  children,
-  tag
-) {
-  if (isUndef(Ctor)) {
-    return
-  }
-
-  var baseCtor = context.$options._base;
-
-  // plain options object: turn it into a constructor
-  if (isObject(Ctor)) {
-    Ctor = baseCtor.extend(Ctor);
-  }
-
-  // if at this stage it's not a constructor or an async component factory,
-  // reject.
-  if (typeof Ctor !== 'function') {
-    if (process.env.NODE_ENV !== 'production') {
-      warn(("Invalid Component definition: " + (String(Ctor))), context);
+/**
+ * Add a dependency to this directive.
+ */
+Watcher.prototype.addDep = function addDep (dep) {
+  var id = dep.id;
+  if (!this.newDepIds.has(id)) {
+    this.newDepIds.add(id);
+    this.newDeps.push(dep);
+    if (!this.depIds.has(id)) {
+      dep.addSub(this);
     }
-    return
   }
+};
 
-  // async component
-  var asyncFactory;
-  if (isUndef(Ctor.cid)) {
-    asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-    if (Ctor === undefined) {
-      // return a placeholder node for async component, which is rendered
-      // as a comment node but preserves all the raw information for the node.
-      // the information will be used for async server-rendering and hydration.
-      return createAsyncPlaceholder(
-        asyncFactory,
-        data,
-        context,
-        children,
-        tag
-      )
+/**
+ * Clean up for dependency collection.
+ */
+Watcher.prototype.cleanupDeps = function cleanupDeps () {
+  var i = this.deps.length;
+  while (i--) {
+    var dep = this.deps[i];
+    if (!this.newDepIds.has(dep.id)) {
+      dep.removeSub(this);
     }
   }
+  var tmp = this.depIds;
+  this.depIds = this.newDepIds;
+  this.newDepIds = tmp;
+  this.newDepIds.clear();
+  tmp = this.deps;
+  this.deps = this.newDeps;
+  this.newDeps = tmp;
+  this.newDeps.length = 0;
+};
 
-  data = data || {};
-
-  // resolve constructor options in case global mixins are applied after
-  // component constructor creation
-  resolveConstructorOptions(Ctor);
-
-  // transform component v-model data into props & events
-  if (isDef(data.model)) {
-    transformModel(Ctor.options, data);
-  }
-
-  // extract props
-  var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-  // functional component
-  if (isTrue(Ctor.options.functional)) {
-    return createFunctionalComponent(Ctor, propsData, data, context, children)
+/**
+ * Subscriber interface.
+ * Will be called when a dependency changes.
+ */
+Watcher.prototype.update = function update () {
+  /* istanbul ignore else */
+  if (this.lazy) {
+    this.dirty = true;
+  } else if (this.sync) {
+    this.run();
+  } else {
+    queueWatcher(this);
   }
+};
 
-  // extract listeners, since these needs to be treated as
-  // child component listeners instead of DOM listeners
-  var listeners = data.on;
-  // replace with listeners with .native modifier
-  // so it gets processed during parent component patch.
-  data.on = data.nativeOn;
-
-  if (isTrue(Ctor.options.abstract)) {
-    // abstract components do not keep anything
-    // other than props & listeners & slot
-
-    // work around flow
-    var slot = data.slot;
-    data = {};
-    if (slot) {
-      data.slot = slot;
+/**
+ * Scheduler job interface.
+ * Will be called by the scheduler.
+ */
+Watcher.prototype.run = function run () {
+  if (this.active) {
+    var value = this.get();
+    if (
+      value !== this.value ||
+      // Deep watchers and watchers on Object/Arrays should fire even
+      // when the value is the same, because the value may
+      // have mutated.
+      isObject(value) ||
+      this.deep
+    ) {
+      // set new value
+      var oldValue = this.value;
+      this.value = value;
+      if (this.user) {
+        try {
+          this.cb.call(this.vm, value, oldValue);
+        } catch (e) {
+          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+        }
+      } else {
+        this.cb.call(this.vm, value, oldValue);
+      }
     }
   }
+};
 
-  // install component management hooks onto the placeholder node
-  installComponentHooks(data);
-
-  // return a placeholder vnode
-  var name = Ctor.options.name || tag;
-  var vnode = new VNode(
-    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-    data, undefined, undefined, undefined, context,
-    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-    asyncFactory
-  );
-
-  return vnode
-}
-
-function createComponentInstanceForVnode (
-  vnode, // we know it's MountedComponentVNode but flow doesn't
-  parent // activeInstance in lifecycle state
-) {
-  var options = {
-    _isComponent: true,
-    _parentVnode: vnode,
-    parent: parent
-  };
-  // check inline-template render functions
-  var inlineTemplate = vnode.data.inlineTemplate;
-  if (isDef(inlineTemplate)) {
-    options.render = inlineTemplate.render;
-    options.staticRenderFns = inlineTemplate.staticRenderFns;
-  }
-  return new vnode.componentOptions.Ctor(options)
-}
+/**
+ * Evaluate the value of the watcher.
+ * This only gets called for lazy watchers.
+ */
+Watcher.prototype.evaluate = function evaluate () {
+  this.value = this.get();
+  this.dirty = false;
+};
 
-function installComponentHooks (data) {
-  var hooks = data.hook || (data.hook = {});
-  for (var i = 0; i < hooksToMerge.length; i++) {
-    var key = hooksToMerge[i];
-    var existing = hooks[key];
-    var toMerge = componentVNodeHooks[key];
-    if (existing !== toMerge && !(existing && existing._merged)) {
-      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
-    }
+/**
+ * Depend on all deps collected by this watcher.
+ */
+Watcher.prototype.depend = function depend () {
+  var i = this.deps.length;
+  while (i--) {
+    this.deps[i].depend();
   }
-}
-
-function mergeHook$1 (f1, f2) {
-  var merged = function (a, b) {
-    // flow complains about extra args which is why we use any
-    f1(a, b);
-    f2(a, b);
-  };
-  merged._merged = true;
-  return merged
-}
+};
 
-// transform component v-model info (value and callback) into
-// prop and event handler respectively.
-function transformModel (options, data) {
-  var prop = (options.model && options.model.prop) || 'value';
-  var event = (options.model && options.model.event) || 'input'
-  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
-  var on = data.on || (data.on = {});
-  var existing = on[event];
-  var callback = data.model.callback;
-  if (isDef(existing)) {
-    if (
-      Array.isArray(existing)
-        ? existing.indexOf(callback) === -1
-        : existing !== callback
-    ) {
-      on[event] = [callback].concat(existing);
+/**
+ * Remove self from all dependencies' subscriber list.
+ */
+Watcher.prototype.teardown = function teardown () {
+  if (this.active) {
+    // remove self from vm's watcher list
+    // this is a somewhat expensive operation so we skip it
+    // if the vm is being destroyed.
+    if (!this.vm._isBeingDestroyed) {
+      remove(this.vm._watchers, this);
     }
-  } else {
-    on[event] = callback;
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].removeSub(this);
+    }
+    this.active = false;
   }
-}
+};
 
 /*  */
 
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
+var sharedPropertyDefinition = {
+  enumerable: true,
+  configurable: true,
+  get: noop,
+  set: noop
+};
 
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType,
-  alwaysNormalize
-) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
+function proxy (target, sourceKey, key) {
+  sharedPropertyDefinition.get = function proxyGetter () {
+    return this[sourceKey][key]
+  };
+  sharedPropertyDefinition.set = function proxySetter (val) {
+    this[sourceKey][key] = val;
+  };
+  Object.defineProperty(target, key, sharedPropertyDefinition);
+}
+
+function initState (vm) {
+  vm._watchers = [];
+  var opts = vm.$options;
+  if (opts.props) { initProps(vm, opts.props); }
+  if (opts.methods) { initMethods(vm, opts.methods); }
+  if (opts.data) {
+    initData(vm);
+  } else {
+    observe(vm._data = {}, true /* asRootData */);
   }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
+  if (opts.computed) { initComputed(vm, opts.computed); }
+  if (opts.watch && opts.watch !== nativeWatch) {
+    initWatch(vm, opts.watch);
   }
-  return _createElement(context, tag, data, children, normalizationType)
 }
 
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
+function initProps (vm, propsOptions) {
+  var propsData = vm.$options.propsData || {};
+  var props = vm._props = {};
+  // cache prop keys so that future props updates can iterate using Array
+  // instead of dynamic object key enumeration.
+  var keys = vm.$options._propKeys = [];
+  var isRoot = !vm.$parent;
+  // root instance props should be converted
+  if (!isRoot) {
+    toggleObserving(false);
+  }
+  var loop = function ( key ) {
+    keys.push(key);
+    var value = validateProp(key, propsOptions, propsData, vm);
+    /* istanbul ignore else */
+    if (process.env.NODE_ENV !== 'production') {
+      var hyphenatedKey = hyphenate(key);
+      if (isReservedAttribute(hyphenatedKey) ||
+          config.isReservedAttr(hyphenatedKey)) {
+        warn(
+          ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+          vm
+        );
+      }
+      defineReactive$$1(props, key, value, function () {
+        if (!isRoot && !isUpdatingChildComponent) {
+          warn(
+            "Avoid mutating a prop directly since the value will be " +
+            "overwritten whenever the parent component re-renders. " +
+            "Instead, use a data or computed property based on the prop's " +
+            "value. Prop being mutated: \"" + key + "\"",
+            vm
+          );
+        }
+      });
+    } else {
+      defineReactive$$1(props, key, value);
+    }
+    // static props are already proxied on the component's prototype
+    // during Vue.extend(). We only need to proxy props defined at
+    // instantiation here.
+    if (!(key in vm)) {
+      proxy(vm, "_props", key);
+    }
+  };
+
+  for (var key in propsOptions) loop( key );
+  toggleObserving(true);
+}
+
+function initData (vm) {
+  var data = vm.$options.data;
+  data = vm._data = typeof data === 'function'
+    ? getData(data, vm)
+    : data || {};
+  if (!isPlainObject(data)) {
+    data = {};
     process.env.NODE_ENV !== 'production' && warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
+      'data functions should return an object:\n' +
+      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+      vm
     );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
   }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (process.env.NODE_ENV !== 'production' &&
-    isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
+  // proxy data on instance
+  var keys = Object.keys(data);
+  var props = vm.$options.props;
+  var methods = vm.$options.methods;
+  var i = keys.length;
+  while (i--) {
+    var key = keys[i];
+    if (process.env.NODE_ENV !== 'production') {
+      if (methods && hasOwn(methods, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a data property."),
+          vm
+        );
+      }
+    }
+    if (props && hasOwn(props, key)) {
+      process.env.NODE_ENV !== 'production' && warn(
+        "The data property \"" + key + "\" is already declared as a prop. " +
+        "Use prop default value instead.",
+        vm
       );
+    } else if (!isReserved(key)) {
+      proxy(vm, "_data", key);
     }
   }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
+  // observe data
+  observe(data, true /* asRootData */);
+}
+
+function getData (data, vm) {
+  // #7573 disable dep collection when invoking data getters
+  pushTarget();
+  try {
+    return data.call(vm, vm)
+  } catch (e) {
+    handleError(e, vm, "data()");
+    return {}
+  } finally {
+    popTarget();
   }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if (config.isReservedTag(tag)) {
-      // platform built-in elements
-      vnode = new VNode(
-        config.parsePlatformTagName(tag), data, children,
-        undefined, undefined, context
+}
+
+var computedWatcherOptions = { lazy: true };
+
+function initComputed (vm, computed) {
+  // $flow-disable-line
+  var watchers = vm._computedWatchers = Object.create(null);
+  // computed properties are just getters during SSR
+  var isSSR = isServerRendering();
+
+  for (var key in computed) {
+    var userDef = computed[key];
+    var getter = typeof userDef === 'function' ? userDef : userDef.get;
+    if (process.env.NODE_ENV !== 'production' && getter == null) {
+      warn(
+        ("Getter is missing for computed property \"" + key + "\"."),
+        vm
       );
-    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
+    }
+
+    if (!isSSR) {
+      // create internal watcher for the computed property.
+      watchers[key] = new Watcher(
+        vm,
+        getter || noop,
+        noop,
+        computedWatcherOptions
       );
     }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
+
+    // component-defined computed properties are already defined on the
+    // component prototype. We only need to define computed properties defined
+    // at instantiation here.
+    if (!(key in vm)) {
+      defineComputed(vm, key, userDef);
+    } else if (process.env.NODE_ENV !== 'production') {
+      if (key in vm.$data) {
+        warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+      } else if (vm.$options.props && key in vm.$options.props) {
+        warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+      }
+    }
   }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
+}
+
+function defineComputed (
+  target,
+  key,
+  userDef
+) {
+  var shouldCache = !isServerRendering();
+  if (typeof userDef === 'function') {
+    sharedPropertyDefinition.get = shouldCache
+      ? createComputedGetter(key)
+      : createGetterInvoker(userDef);
+    sharedPropertyDefinition.set = noop;
   } else {
-    return createEmptyVNode()
+    sharedPropertyDefinition.get = userDef.get
+      ? shouldCache && userDef.cache !== false
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef.get)
+      : noop;
+    sharedPropertyDefinition.set = userDef.set || noop;
+  }
+  if (process.env.NODE_ENV !== 'production' &&
+      sharedPropertyDefinition.set === noop) {
+    sharedPropertyDefinition.set = function () {
+      warn(
+        ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+        this
+      );
+    };
   }
+  Object.defineProperty(target, key, sharedPropertyDefinition);
 }
 
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
+function createComputedGetter (key) {
+  return function computedGetter () {
+    var watcher = this._computedWatchers && this._computedWatchers[key];
+    if (watcher) {
+      if (watcher.dirty) {
+        watcher.evaluate();
+      }
+      if (Dep.target) {
+        watcher.depend();
       }
+      return watcher.value
     }
   }
 }
 
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
+function createGetterInvoker(fn) {
+  return function computedGetter () {
+    return fn.call(this, this)
   }
 }
 
-/*  */
-
-function initRender (vm) {
-  vm._vnode = null; // the root of the child tree
-  vm._staticTrees = null; // v-once cached trees
-  var options = vm.$options;
-  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-  var renderContext = parentVnode && parentVnode.context;
-  vm.$slots = resolveSlots(options._renderChildren, renderContext);
-  vm.$scopedSlots = emptyObject;
-  // bind the createElement fn to this instance
-  // so that we get proper render context inside it.
-  // args order: tag, data, children, normalizationType, alwaysNormalize
-  // internal version is used by render functions compiled from templates
-  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-  // normalization is always applied for the public version, used in
-  // user-written render functions.
-  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+function initMethods (vm, methods) {
+  var props = vm.$options.props;
+  for (var key in methods) {
+    if (process.env.NODE_ENV !== 'production') {
+      if (typeof methods[key] !== 'function') {
+        warn(
+          "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+          "Did you reference the function correctly?",
+          vm
+        );
+      }
+      if (props && hasOwn(props, key)) {
+        warn(
+          ("Method \"" + key + "\" has already been defined as a prop."),
+          vm
+        );
+      }
+      if ((key in vm) && isReserved(key)) {
+        warn(
+          "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+          "Avoid defining component methods that start with _ or $."
+        );
+      }
+    }
+    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+  }
+}
 
-  // $attrs & $listeners are exposed for easier HOC creation.
-  // they need to be reactive so that HOCs using them are always updated
-  var parentData = parentVnode && parentVnode.data;
+function initWatch (vm, watch) {
+  for (var key in watch) {
+    var handler = watch[key];
+    if (Array.isArray(handler)) {
+      for (var i = 0; i < handler.length; i++) {
+        createWatcher(vm, key, handler[i]);
+      }
+    } else {
+      createWatcher(vm, key, handler);
+    }
+  }
+}
 
-  /* istanbul ignore else */
-  if (process.env.NODE_ENV !== 'production') {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-    }, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-      !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-    }, true);
-  } else {
-    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);
-    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);
+function createWatcher (
+  vm,
+  expOrFn,
+  handler,
+  options
+) {
+  if (isPlainObject(handler)) {
+    options = handler;
+    handler = handler.handler;
+  }
+  if (typeof handler === 'string') {
+    handler = vm[handler];
   }
+  return vm.$watch(expOrFn, handler, options)
 }
 
-function renderMixin (Vue) {
-  // install runtime convenience helpers
-  installRenderHelpers(Vue.prototype);
+function stateMixin (Vue) {
+  // flow somehow has problems with directly declared definition object
+  // when using Object.defineProperty, so we have to procedurally build up
+  // the object here.
+  var dataDef = {};
+  dataDef.get = function () { return this._data };
+  var propsDef = {};
+  propsDef.get = function () { return this._props };
+  if (process.env.NODE_ENV !== 'production') {
+    dataDef.set = function () {
+      warn(
+        'Avoid replacing instance root $data. ' +
+        'Use nested data properties instead.',
+        this
+      );
+    };
+    propsDef.set = function () {
+      warn("$props is readonly.", this);
+    };
+  }
+  Object.defineProperty(Vue.prototype, '$data', dataDef);
+  Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-  Vue.prototype.$nextTick = function (fn) {
-    return nextTick(fn, this)
-  };
+  Vue.prototype.$set = set;
+  Vue.prototype.$delete = del;
 
-  Vue.prototype._render = function () {
+  Vue.prototype.$watch = function (
+    expOrFn,
+    cb,
+    options
+  ) {
     var vm = this;
-    var ref = vm.$options;
-    var render = ref.render;
-    var _parentVnode = ref._parentVnode;
-
-    if (_parentVnode) {
-      vm.$scopedSlots = normalizeScopedSlots(
-        _parentVnode.data.scopedSlots,
-        vm.$slots
-      );
+    if (isPlainObject(cb)) {
+      return createWatcher(vm, expOrFn, cb, options)
     }
-
-    // set parent vnode. this allows render functions to have access
-    // to the data on the placeholder node.
-    vm.$vnode = _parentVnode;
-    // render self
-    var vnode;
-    try {
-      vnode = render.call(vm._renderProxy, vm.$createElement);
-    } catch (e) {
-      handleError(e, vm, "render");
-      // return error render result,
-      // or previous vnode to prevent render error causing blank component
-      /* istanbul ignore else */
-      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {
-        try {
-          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-        } catch (e) {
-          handleError(e, vm, "renderError");
-          vnode = vm._vnode;
-        }
-      } else {
-        vnode = vm._vnode;
+    options = options || {};
+    options.user = true;
+    var watcher = new Watcher(vm, expOrFn, cb, options);
+    if (options.immediate) {
+      try {
+        cb.call(vm, watcher.value);
+      } catch (error) {
+        handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
       }
     }
-    // if the returned array contains only a single node, allow it
-    if (Array.isArray(vnode) && vnode.length === 1) {
-      vnode = vnode[0];
-    }
-    // return empty vnode in case the render function errored out
-    if (!(vnode instanceof VNode)) {
-      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {
-        warn(
-          'Multiple root nodes returned from render function. Render function ' +
-          'should return a single root node.',
-          vm
-        );
-      }
-      vnode = createEmptyVNode();
+    return function unwatchFn () {
+      watcher.teardown();
     }
-    // set parent
-    vnode.parent = _parentVnode;
-    return vnode
   };
 }
 
@@ -5339,7 +5342,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.2';
+Vue.version = '2.6.3';
 
 /*  */
 
@@ -6766,6 +6769,11 @@ function createOnceHandler$1 (event, handler, capture) {
   }
 }
 
+// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+// implementation and does not fire microtasks in between event propagation, so
+// safe to exclude.
+var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
+
 function add$1 (
   name,
   handler,
@@ -6778,11 +6786,16 @@ function add$1 (
   // the solution is simple: we save the timestamp when a handler is attached,
   // and the handler would only fire if the event passed to it was fired
   // AFTER it was attached.
-  if (isUsingMicroTask) {
+  if (useMicrotaskFix) {
     var attachedTimestamp = currentFlushTimestamp;
     var original = handler;
     handler = original._wrapper = function (e) {
-      if (e.timeStamp >= attachedTimestamp) {
+      if (
+        e.timeStamp >= attachedTimestamp ||
+        // #9448 bail if event is fired in another document in a multi-page
+        // electron/nw.js app
+        e.target.ownerDocument !== document
+      ) {
         return original.apply(this, arguments)
       }
     };
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 89a65bdf4fd..32ac81afdbb 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -529,6 +529,7 @@
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
   var isPhantomJS = UA && /phantomjs/.test(UA);
+  var isFF = UA && UA.match(/firefox\/(\d+)/);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -2399,2437 +2400,2439 @@
 
   /*  */
 
-  function ensureCtor (comp, base) {
-    if (
-      comp.__esModule ||
-      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-    ) {
-      comp = comp.default;
+  function initProvide (vm) {
+    var provide = vm.$options.provide;
+    if (provide) {
+      vm._provided = typeof provide === 'function'
+        ? provide.call(vm)
+        : provide;
     }
-    return isObject(comp)
-      ? base.extend(comp)
-      : comp
-  }
-
-  function createAsyncPlaceholder (
-    factory,
-    data,
-    context,
-    children,
-    tag
-  ) {
-    var node = createEmptyVNode();
-    node.asyncFactory = factory;
-    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-    return node
   }
 
-  function resolveAsyncComponent (
-    factory,
-    baseCtor,
-    context
-  ) {
-    if (isTrue(factory.error) && isDef(factory.errorComp)) {
-      return factory.errorComp
-    }
-
-    if (isDef(factory.resolved)) {
-      return factory.resolved
-    }
-
-    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-      return factory.loadingComp
-    }
-
-    if (isDef(factory.contexts)) {
-      // already pending
-      factory.contexts.push(context);
-    } else {
-      var contexts = factory.contexts = [context];
-      var sync = true;
-
-      var forceRender = function (renderCompleted) {
-        for (var i = 0, l = contexts.length; i < l; i++) {
-          contexts[i].$forceUpdate();
-        }
-
-        if (renderCompleted) {
-          contexts.length = 0;
-        }
-      };
-
-      var resolve = once(function (res) {
-        // cache resolved
-        factory.resolved = ensureCtor(res, baseCtor);
-        // invoke callbacks only if this is not a synchronous resolve
-        // (async resolves are shimmed as synchronous during SSR)
-        if (!sync) {
-          forceRender(true);
-        } else {
-          contexts.length = 0;
-        }
-      });
-
-      var reject = once(function (reason) {
-        warn(
-          "Failed to resolve async component: " + (String(factory)) +
-          (reason ? ("\nReason: " + reason) : '')
-        );
-        if (isDef(factory.errorComp)) {
-          factory.error = true;
-          forceRender(true);
+  function initInjections (vm) {
+    var result = resolveInject(vm.$options.inject, vm);
+    if (result) {
+      toggleObserving(false);
+      Object.keys(result).forEach(function (key) {
+        /* istanbul ignore else */
+        {
+          defineReactive$$1(vm, key, result[key], function () {
+            warn(
+              "Avoid mutating an injected value directly since the changes will be " +
+              "overwritten whenever the provided component re-renders. " +
+              "injection being mutated: \"" + key + "\"",
+              vm
+            );
+          });
         }
       });
+      toggleObserving(true);
+    }
+  }
 
-      var res = factory(resolve, reject);
-
-      if (isObject(res)) {
-        if (isPromise(res)) {
-          // () => Promise
-          if (isUndef(factory.resolved)) {
-            res.then(resolve, reject);
-          }
-        } else if (isPromise(res.component)) {
-          res.component.then(resolve, reject);
-
-          if (isDef(res.error)) {
-            factory.errorComp = ensureCtor(res.error, baseCtor);
-          }
+  function resolveInject (inject, vm) {
+    if (inject) {
+      // inject is :any because flow is not smart enough to figure out cached
+      var result = Object.create(null);
+      var keys = hasSymbol
+        ? Reflect.ownKeys(inject)
+        : Object.keys(inject);
 
-          if (isDef(res.loading)) {
-            factory.loadingComp = ensureCtor(res.loading, baseCtor);
-            if (res.delay === 0) {
-              factory.loading = true;
-            } else {
-              setTimeout(function () {
-                if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                  factory.loading = true;
-                  forceRender(false);
-                }
-              }, res.delay || 200);
-            }
+      for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        // #6574 in case the inject object is observed...
+        if (key === '__ob__') { continue }
+        var provideKey = inject[key].from;
+        var source = vm;
+        while (source) {
+          if (source._provided && hasOwn(source._provided, provideKey)) {
+            result[key] = source._provided[provideKey];
+            break
           }
-
-          if (isDef(res.timeout)) {
-            setTimeout(function () {
-              if (isUndef(factory.resolved)) {
-                reject(
-                  "timeout (" + (res.timeout) + "ms)"
-                );
-              }
-            }, res.timeout);
+          source = source.$parent;
+        }
+        if (!source) {
+          if ('default' in inject[key]) {
+            var provideDefault = inject[key].default;
+            result[key] = typeof provideDefault === 'function'
+              ? provideDefault.call(vm)
+              : provideDefault;
+          } else {
+            warn(("Injection \"" + key + "\" not found"), vm);
           }
         }
       }
-
-      sync = false;
-      // return in case resolved synchronously
-      return factory.loading
-        ? factory.loadingComp
-        : factory.resolved
+      return result
     }
   }
 
   /*  */
 
-  function isAsyncPlaceholder (node) {
-    return node.isComment && node.asyncFactory
-  }
 
-  /*  */
 
-  function getFirstComponentChild (children) {
-    if (Array.isArray(children)) {
-      for (var i = 0; i < children.length; i++) {
-        var c = children[i];
-        if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
-          return c
+  /**
+   * Runtime helper for resolving raw children VNodes into a slot object.
+   */
+  function resolveSlots (
+    children,
+    context
+  ) {
+    if (!children || !children.length) {
+      return {}
+    }
+    var slots = {};
+    for (var i = 0, l = children.length; i < l; i++) {
+      var child = children[i];
+      var data = child.data;
+      // remove slot attribute if the node is resolved as a Vue slot node
+      if (data && data.attrs && data.attrs.slot) {
+        delete data.attrs.slot;
+      }
+      // named slots should only be respected if the vnode was rendered in the
+      // same context.
+      if ((child.context === context || child.fnContext === context) &&
+        data && data.slot != null
+      ) {
+        var name = data.slot;
+        var slot = (slots[name] || (slots[name] = []));
+        if (child.tag === 'template') {
+          slot.push.apply(slot, child.children || []);
+        } else {
+          slot.push(child);
         }
+      } else {
+        (slots.default || (slots.default = [])).push(child);
+      }
+    }
+    // ignore slots that contains only whitespace
+    for (var name$1 in slots) {
+      if (slots[name$1].every(isWhitespace)) {
+        delete slots[name$1];
       }
     }
+    return slots
   }
 
-  /*  */
+  function isWhitespace (node) {
+    return (node.isComment && !node.asyncFactory) || node.text === ' '
+  }
 
   /*  */
 
-  function initEvents (vm) {
-    vm._events = Object.create(null);
-    vm._hasHookEvent = false;
-    // init parent attached events
-    var listeners = vm.$options._parentListeners;
-    if (listeners) {
-      updateComponentListeners(vm, listeners);
+  function normalizeScopedSlots (
+    slots,
+    normalSlots
+  ) {
+    var res;
+    if (!slots) {
+      res = {};
+    } else if (slots._normalized) {
+      return slots
+    } else {
+      res = {};
+      for (var key in slots) {
+        if (slots[key] && key[0] !== '$') {
+          res[key] = normalizeScopedSlot(slots[key]);
+        }
+      }
+    }
+    // expose normal slots on scopedSlots
+    for (var key$1 in normalSlots) {
+      if (!(key$1 in res)) {
+        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+      }
     }
+    def(res, '_normalized', true);
+    def(res, '$stable', slots ? !!slots.$stable : true);
+    return res
   }
 
-  var target;
-
-  function add (event, fn) {
-    target.$on(event, fn);
+  function normalizeScopedSlot(fn) {
+    return function (scope) {
+      var res = fn(scope);
+      return res && typeof res === 'object' && !Array.isArray(res)
+        ? [res] // single vnode
+        : normalizeChildren(res)
+    }
   }
 
-  function remove$1 (event, fn) {
-    target.$off(event, fn);
+  function proxyNormalSlot(slots, key) {
+    return function () { return slots[key]; }
   }
 
-  function createOnceHandler (event, fn) {
-    var _target = target;
-    return function onceHandler () {
-      var res = fn.apply(null, arguments);
-      if (res !== null) {
-        _target.$off(event, onceHandler);
-      }
-    }
-  }
+  /*  */
 
-  function updateComponentListeners (
-    vm,
-    listeners,
-    oldListeners
+  /**
+   * Runtime helper for rendering v-for lists.
+   */
+  function renderList (
+    val,
+    render
   ) {
-    target = vm;
-    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-    target = undefined;
-  }
-
-  function eventsMixin (Vue) {
-    var hookRE = /^hook:/;
-    Vue.prototype.$on = function (event, fn) {
-      var vm = this;
-      if (Array.isArray(event)) {
-        for (var i = 0, l = event.length; i < l; i++) {
-          vm.$on(event[i], fn);
-        }
-      } else {
-        (vm._events[event] || (vm._events[event] = [])).push(fn);
-        // optimize hook:event cost by using a boolean flag marked at registration
-        // instead of a hash lookup
-        if (hookRE.test(event)) {
-          vm._hasHookEvent = true;
-        }
-      }
-      return vm
-    };
-
-    Vue.prototype.$once = function (event, fn) {
-      var vm = this;
-      function on () {
-        vm.$off(event, on);
-        fn.apply(vm, arguments);
-      }
-      on.fn = fn;
-      vm.$on(event, on);
-      return vm
-    };
-
-    Vue.prototype.$off = function (event, fn) {
-      var vm = this;
-      // all
-      if (!arguments.length) {
-        vm._events = Object.create(null);
-        return vm
-      }
-      // array of events
-      if (Array.isArray(event)) {
-        for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
-          vm.$off(event[i$1], fn);
-        }
-        return vm
-      }
-      // specific event
-      var cbs = vm._events[event];
-      if (!cbs) {
-        return vm
-      }
-      if (!fn) {
-        vm._events[event] = null;
-        return vm
+    var ret, i, l, keys, key;
+    if (Array.isArray(val) || typeof val === 'string') {
+      ret = new Array(val.length);
+      for (i = 0, l = val.length; i < l; i++) {
+        ret[i] = render(val[i], i);
       }
-      // specific handler
-      var cb;
-      var i = cbs.length;
-      while (i--) {
-        cb = cbs[i];
-        if (cb === fn || cb.fn === fn) {
-          cbs.splice(i, 1);
-          break
-        }
+    } else if (typeof val === 'number') {
+      ret = new Array(val);
+      for (i = 0; i < val; i++) {
+        ret[i] = render(i + 1, i);
       }
-      return vm
-    };
-
-    Vue.prototype.$emit = function (event) {
-      var vm = this;
-      {
-        var lowerCaseEvent = event.toLowerCase();
-        if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
-          tip(
-            "Event \"" + lowerCaseEvent + "\" is emitted in component " +
-            (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
-            "Note that HTML attributes are case-insensitive and you cannot use " +
-            "v-on to listen to camelCase events when using in-DOM templates. " +
-            "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
-          );
+    } else if (isObject(val)) {
+      if (hasSymbol && val[Symbol.iterator]) {
+        ret = [];
+        var iterator = val[Symbol.iterator]();
+        var result = iterator.next();
+        while (!result.done) {
+          ret.push(render(result.value, ret.length));
+          result = iterator.next();
         }
-      }
-      var cbs = vm._events[event];
-      if (cbs) {
-        cbs = cbs.length > 1 ? toArray(cbs) : cbs;
-        var args = toArray(arguments, 1);
-        var info = "event handler for \"" + event + "\"";
-        for (var i = 0, l = cbs.length; i < l; i++) {
-          invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+      } else {
+        keys = Object.keys(val);
+        ret = new Array(keys.length);
+        for (i = 0, l = keys.length; i < l; i++) {
+          key = keys[i];
+          ret[i] = render(val[key], key, i);
         }
       }
-      return vm
-    };
+    }
+    if (!isDef(ret)) {
+      ret = [];
+    }
+    (ret)._isVList = true;
+    return ret
   }
 
   /*  */
 
-
-
   /**
-   * Runtime helper for resolving raw children VNodes into a slot object.
+   * Runtime helper for rendering <slot>
    */
-  function resolveSlots (
-    children,
-    context
+  function renderSlot (
+    name,
+    fallback,
+    props,
+    bindObject
   ) {
-    if (!children || !children.length) {
-      return {}
-    }
-    var slots = {};
-    for (var i = 0, l = children.length; i < l; i++) {
-      var child = children[i];
-      var data = child.data;
-      // remove slot attribute if the node is resolved as a Vue slot node
-      if (data && data.attrs && data.attrs.slot) {
-        delete data.attrs.slot;
-      }
-      // named slots should only be respected if the vnode was rendered in the
-      // same context.
-      if ((child.context === context || child.fnContext === context) &&
-        data && data.slot != null
-      ) {
-        var name = data.slot;
-        var slot = (slots[name] || (slots[name] = []));
-        if (child.tag === 'template') {
-          slot.push.apply(slot, child.children || []);
-        } else {
-          slot.push(child);
+    var scopedSlotFn = this.$scopedSlots[name];
+    var nodes;
+    if (scopedSlotFn) { // scoped slot
+      props = props || {};
+      if (bindObject) {
+        if (!isObject(bindObject)) {
+          warn(
+            'slot v-bind without argument expects an Object',
+            this
+          );
         }
-      } else {
-        (slots.default || (slots.default = [])).push(child);
-      }
-    }
-    // ignore slots that contains only whitespace
-    for (var name$1 in slots) {
-      if (slots[name$1].every(isWhitespace)) {
-        delete slots[name$1];
+        props = extend(extend({}, bindObject), props);
       }
+      nodes = scopedSlotFn(props) || fallback;
+    } else {
+      nodes = this.$slots[name] || fallback;
     }
-    return slots
-  }
-
-  function isWhitespace (node) {
-    return (node.isComment && !node.asyncFactory) || node.text === ' '
-  }
 
-  function resolveScopedSlots (
-    fns, // see flow/vnode
-    hasDynamicKeys,
-    res
-  ) {
-    res = res || { $stable: !hasDynamicKeys };
-    for (var i = 0; i < fns.length; i++) {
-      var slot = fns[i];
-      if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, hasDynamicKeys, res);
-      } else if (slot) {
-        res[slot.key] = slot.fn;
-      }
+    var target = props && props.slot;
+    if (target) {
+      return this.$createElement('template', { slot: target }, nodes)
+    } else {
+      return nodes
     }
-    return res
   }
 
   /*  */
 
-  var activeInstance = null;
-  var isUpdatingChildComponent = false;
-
-  function setActiveInstance(vm) {
-    var prevActiveInstance = activeInstance;
-    activeInstance = vm;
-    return function () {
-      activeInstance = prevActiveInstance;
-    }
+  /**
+   * Runtime helper for resolving filters
+   */
+  function resolveFilter (id) {
+    return resolveAsset(this.$options, 'filters', id, true) || identity
   }
 
-  function initLifecycle (vm) {
-    var options = vm.$options;
+  /*  */
 
-    // locate first non-abstract parent
-    var parent = options.parent;
-    if (parent && !options.abstract) {
-      while (parent.$options.abstract && parent.$parent) {
-        parent = parent.$parent;
-      }
-      parent.$children.push(vm);
+  function isKeyNotMatch (expect, actual) {
+    if (Array.isArray(expect)) {
+      return expect.indexOf(actual) === -1
+    } else {
+      return expect !== actual
     }
+  }
 
-    vm.$parent = parent;
-    vm.$root = parent ? parent.$root : vm;
-
-    vm.$children = [];
-    vm.$refs = {};
-
-    vm._watcher = null;
-    vm._inactive = null;
-    vm._directInactive = false;
-    vm._isMounted = false;
-    vm._isDestroyed = false;
-    vm._isBeingDestroyed = false;
+  /**
+   * Runtime helper for checking keyCodes from config.
+   * exposed as Vue.prototype._k
+   * passing in eventKeyName as last argument separately for backwards compat
+   */
+  function checkKeyCodes (
+    eventKeyCode,
+    key,
+    builtInKeyCode,
+    eventKeyName,
+    builtInKeyName
+  ) {
+    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+      return isKeyNotMatch(builtInKeyName, eventKeyName)
+    } else if (mappedKeyCode) {
+      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+    } else if (eventKeyName) {
+      return hyphenate(eventKeyName) !== key
+    }
   }
 
-  function lifecycleMixin (Vue) {
-    Vue.prototype._update = function (vnode, hydrating) {
-      var vm = this;
-      var prevEl = vm.$el;
-      var prevVnode = vm._vnode;
-      var restoreActiveInstance = setActiveInstance(vm);
-      vm._vnode = vnode;
-      // Vue.prototype.__patch__ is injected in entry points
-      // based on the rendering backend used.
-      if (!prevVnode) {
-        // initial render
-        vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+  /*  */
+
+  /**
+   * Runtime helper for merging v-bind="object" into a VNode's data.
+   */
+  function bindObjectProps (
+    data,
+    tag,
+    value,
+    asProp,
+    isSync
+  ) {
+    if (value) {
+      if (!isObject(value)) {
+        warn(
+          'v-bind without argument expects an Object or Array value',
+          this
+        );
       } else {
-        // updates
-        vm.$el = vm.__patch__(prevVnode, vnode);
-      }
-      restoreActiveInstance();
-      // update __vue__ reference
-      if (prevEl) {
-        prevEl.__vue__ = null;
-      }
-      if (vm.$el) {
-        vm.$el.__vue__ = vm;
-      }
-      // if parent is an HOC, update its $el as well
-      if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
-        vm.$parent.$el = vm.$el;
-      }
-      // updated hook is called by the scheduler to ensure that children are
-      // updated in a parent's updated hook.
-    };
+        if (Array.isArray(value)) {
+          value = toObject(value);
+        }
+        var hash;
+        var loop = function ( key ) {
+          if (
+            key === 'class' ||
+            key === 'style' ||
+            isReservedAttribute(key)
+          ) {
+            hash = data;
+          } else {
+            var type = data.attrs && data.attrs.type;
+            hash = asProp || config.mustUseProp(tag, type, key)
+              ? data.domProps || (data.domProps = {})
+              : data.attrs || (data.attrs = {});
+          }
+          var camelizedKey = camelize(key);
+          if (!(key in hash) && !(camelizedKey in hash)) {
+            hash[key] = value[key];
 
-    Vue.prototype.$forceUpdate = function () {
-      var vm = this;
-      if (vm._watcher) {
-        vm._watcher.update();
-      }
-    };
+            if (isSync) {
+              var on = data.on || (data.on = {});
+              on[("update:" + camelizedKey)] = function ($event) {
+                value[key] = $event;
+              };
+            }
+          }
+        };
 
-    Vue.prototype.$destroy = function () {
-      var vm = this;
-      if (vm._isBeingDestroyed) {
-        return
-      }
-      callHook(vm, 'beforeDestroy');
-      vm._isBeingDestroyed = true;
-      // remove self from parent
-      var parent = vm.$parent;
-      if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
-        remove(parent.$children, vm);
-      }
-      // teardown watchers
-      if (vm._watcher) {
-        vm._watcher.teardown();
-      }
-      var i = vm._watchers.length;
-      while (i--) {
-        vm._watchers[i].teardown();
-      }
-      // remove reference from data ob
-      // frozen object may not have observer.
-      if (vm._data.__ob__) {
-        vm._data.__ob__.vmCount--;
-      }
-      // call the last hook...
-      vm._isDestroyed = true;
-      // invoke destroy hooks on current rendered tree
-      vm.__patch__(vm._vnode, null);
-      // fire destroyed hook
-      callHook(vm, 'destroyed');
-      // turn off all instance listeners.
-      vm.$off();
-      // remove __vue__ reference
-      if (vm.$el) {
-        vm.$el.__vue__ = null;
-      }
-      // release circular reference (#6759)
-      if (vm.$vnode) {
-        vm.$vnode.parent = null;
+        for (var key in value) loop( key );
       }
-    };
+    }
+    return data
   }
 
-  function mountComponent (
-    vm,
-    el,
-    hydrating
+  /*  */
+
+  /**
+   * Runtime helper for rendering static trees.
+   */
+  function renderStatic (
+    index,
+    isInFor
   ) {
-    vm.$el = el;
-    if (!vm.$options.render) {
-      vm.$options.render = createEmptyVNode;
-      {
-        /* istanbul ignore if */
-        if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
-          vm.$options.el || el) {
-          warn(
-            'You are using the runtime-only build of Vue where the template ' +
-            'compiler is not available. Either pre-compile the templates into ' +
-            'render functions, or use the compiler-included build.',
-            vm
-          );
-        } else {
-          warn(
-            'Failed to mount component: template or render function not defined.',
-            vm
-          );
-        }
-      }
+    var cached = this._staticTrees || (this._staticTrees = []);
+    var tree = cached[index];
+    // if has already-rendered static tree and not inside v-for,
+    // we can reuse the same tree.
+    if (tree && !isInFor) {
+      return tree
     }
-    callHook(vm, 'beforeMount');
-
-    var updateComponent;
-    /* istanbul ignore if */
-    if (config.performance && mark) {
-      updateComponent = function () {
-        var name = vm._name;
-        var id = vm._uid;
-        var startTag = "vue-perf-start:" + id;
-        var endTag = "vue-perf-end:" + id;
+    // otherwise, render a fresh tree.
+    tree = cached[index] = this.$options.staticRenderFns[index].call(
+      this._renderProxy,
+      null,
+      this // for render fns generated for functional component templates
+    );
+    markStatic(tree, ("__static__" + index), false);
+    return tree
+  }
 
-        mark(startTag);
-        var vnode = vm._render();
-        mark(endTag);
-        measure(("vue " + name + " render"), startTag, endTag);
+  /**
+   * Runtime helper for v-once.
+   * Effectively it means marking the node as static with a unique key.
+   */
+  function markOnce (
+    tree,
+    index,
+    key
+  ) {
+    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+    return tree
+  }
 
-        mark(startTag);
-        vm._update(vnode, hydrating);
-        mark(endTag);
-        measure(("vue " + name + " patch"), startTag, endTag);
-      };
+  function markStatic (
+    tree,
+    key,
+    isOnce
+  ) {
+    if (Array.isArray(tree)) {
+      for (var i = 0; i < tree.length; i++) {
+        if (tree[i] && typeof tree[i] !== 'string') {
+          markStaticNode(tree[i], (key + "_" + i), isOnce);
+        }
+      }
     } else {
-      updateComponent = function () {
-        vm._update(vm._render(), hydrating);
-      };
+      markStaticNode(tree, key, isOnce);
     }
+  }
 
-    // we set this to vm._watcher inside the watcher's constructor
-    // since the watcher's initial patch may call $forceUpdate (e.g. inside child
-    // component's mounted hook), which relies on vm._watcher being already defined
-    new Watcher(vm, updateComponent, noop, {
-      before: function before () {
-        if (vm._isMounted && !vm._isDestroyed) {
-          callHook(vm, 'beforeUpdate');
+  function markStaticNode (node, key, isOnce) {
+    node.isStatic = true;
+    node.key = key;
+    node.isOnce = isOnce;
+  }
+
+  /*  */
+
+  function bindObjectListeners (data, value) {
+    if (value) {
+      if (!isPlainObject(value)) {
+        warn(
+          'v-on without argument expects an Object value',
+          this
+        );
+      } else {
+        var on = data.on = data.on ? extend({}, data.on) : {};
+        for (var key in value) {
+          var existing = on[key];
+          var ours = value[key];
+          on[key] = existing ? [].concat(existing, ours) : ours;
         }
       }
-    }, true /* isRenderWatcher */);
-    hydrating = false;
-
-    // manually mounted instance, call mounted on self
-    // mounted is called for render-created child components in its inserted hook
-    if (vm.$vnode == null) {
-      vm._isMounted = true;
-      callHook(vm, 'mounted');
     }
-    return vm
+    return data
   }
 
-  function updateChildComponent (
-    vm,
-    propsData,
-    listeners,
-    parentVnode,
-    renderChildren
+  /*  */
+
+  function resolveScopedSlots (
+    fns, // see flow/vnode
+    hasDynamicKeys,
+    res
   ) {
-    {
-      isUpdatingChildComponent = true;
+    res = res || { $stable: !hasDynamicKeys };
+    for (var i = 0; i < fns.length; i++) {
+      var slot = fns[i];
+      if (Array.isArray(slot)) {
+        resolveScopedSlots(slot, hasDynamicKeys, res);
+      } else if (slot) {
+        res[slot.key] = slot.fn;
+      }
     }
+    return res
+  }
 
-    // determine whether component has slot children
-    // we need to do this before overwriting $options._renderChildren.
+  /*  */
 
-    // check if there are dynamic scopedSlots (hand-written or compiled but with
-    // dynamic slot names). Static scoped slots compiled from template has the
-    // "$stable" marker.
-    var hasDynamicScopedSlot = !!(
-      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-    );
-    // Any static slot children from the parent may have changed during parent's
-    // update. Dynamic scoped slots may also have changed. In such cases, a forced
-    // update is necessary to ensure correctness.
-    var needsForceUpdate = !!(
-      renderChildren ||               // has new static slots
-      vm.$options._renderChildren ||  // has old static slots
-      hasDynamicScopedSlot
-    );
+  function bindDynamicKeys (baseObj, values) {
+    for (var i = 0; i < values.length; i += 2) {
+      var key = values[i];
+      if (typeof key === 'string' && key) {
+        baseObj[values[i]] = values[i + 1];
+      } else if (key !== '' && key !== null) {
+        // null is a speical value for explicitly removing a binding
+        warn(
+          ("Invalid value for dynamic directive argument (expected string or null): " + key),
+          this
+        );
+      }
+    }
+    return baseObj
+  }
 
-    vm.$options._parentVnode = parentVnode;
-    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  // helper to dynamically append modifier runtime markers to event names.
+  // ensure only append when value is already string, otherwise it will be cast
+  // to string and cause the type check to miss.
+  function prependModifier (value, symbol) {
+    return typeof value === 'string' ? symbol + value : value
+  }
 
-    if (vm._vnode) { // update child tree's parent
-      vm._vnode.parent = parentVnode;
-    }
-    vm.$options._renderChildren = renderChildren;
+  /*  */
 
-    // update $attrs and $listeners hash
-    // these are also reactive so they may trigger child update if the child
-    // used them during render
-    vm.$attrs = parentVnode.data.attrs || emptyObject;
-    vm.$listeners = listeners || emptyObject;
+  function installRenderHelpers (target) {
+    target._o = markOnce;
+    target._n = toNumber;
+    target._s = toString;
+    target._l = renderList;
+    target._t = renderSlot;
+    target._q = looseEqual;
+    target._i = looseIndexOf;
+    target._m = renderStatic;
+    target._f = resolveFilter;
+    target._k = checkKeyCodes;
+    target._b = bindObjectProps;
+    target._v = createTextVNode;
+    target._e = createEmptyVNode;
+    target._u = resolveScopedSlots;
+    target._g = bindObjectListeners;
+    target._d = bindDynamicKeys;
+    target._p = prependModifier;
+  }
 
-    // update props
-    if (propsData && vm.$options.props) {
-      toggleObserving(false);
-      var props = vm._props;
-      var propKeys = vm.$options._propKeys || [];
-      for (var i = 0; i < propKeys.length; i++) {
-        var key = propKeys[i];
-        var propOptions = vm.$options.props; // wtf flow?
-        props[key] = validateProp(key, propOptions, propsData, vm);
-      }
-      toggleObserving(true);
-      // keep a copy of raw propsData
-      vm.$options.propsData = propsData;
+  /*  */
+
+  function FunctionalRenderContext (
+    data,
+    props,
+    children,
+    parent,
+    Ctor
+  ) {
+    var options = Ctor.options;
+    // ensure the createElement function in functional components
+    // gets a unique context - this is necessary for correct named slot check
+    var contextVm;
+    if (hasOwn(parent, '_uid')) {
+      contextVm = Object.create(parent);
+      // $flow-disable-line
+      contextVm._original = parent;
+    } else {
+      // the context vm passed in is a functional context as well.
+      // in this case we want to make sure we are able to get a hold to the
+      // real context instance.
+      contextVm = parent;
+      // $flow-disable-line
+      parent = parent._original;
     }
+    var isCompiled = isTrue(options._compiled);
+    var needNormalization = !isCompiled;
 
-    // update listeners
-    listeners = listeners || emptyObject;
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
+    this.data = data;
+    this.props = props;
+    this.children = children;
+    this.parent = parent;
+    this.listeners = data.on || emptyObject;
+    this.injections = resolveInject(options.inject, parent);
+    this.slots = function () { return resolveSlots(children, parent); };
 
-    // resolve slots + force update if has children
-    if (needsForceUpdate) {
-      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-      vm.$forceUpdate();
-    }
+    Object.defineProperty(this, 'scopedSlots', ({
+      enumerable: true,
+      get: function get () {
+        return normalizeScopedSlots(data.scopedSlots, this.slots())
+      }
+    }));
 
-    {
-      isUpdatingChildComponent = false;
+    // support for compiled functional template
+    if (isCompiled) {
+      // exposing $options for renderStatic()
+      this.$options = options;
+      // pre-resolve slots for renderSlot()
+      this.$slots = this.slots();
+      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
     }
-  }
 
-  function isInInactiveTree (vm) {
-    while (vm && (vm = vm.$parent)) {
-      if (vm._inactive) { return true }
+    if (options._scopeId) {
+      this._c = function (a, b, c, d) {
+        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
+        if (vnode && !Array.isArray(vnode)) {
+          vnode.fnScopeId = options._scopeId;
+          vnode.fnContext = parent;
+        }
+        return vnode
+      };
+    } else {
+      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
     }
-    return false
   }
 
-  function activateChildComponent (vm, direct) {
-    if (direct) {
-      vm._directInactive = false;
-      if (isInInactiveTree(vm)) {
-        return
+  installRenderHelpers(FunctionalRenderContext.prototype);
+
+  function createFunctionalComponent (
+    Ctor,
+    propsData,
+    data,
+    contextVm,
+    children
+  ) {
+    var options = Ctor.options;
+    var props = {};
+    var propOptions = options.props;
+    if (isDef(propOptions)) {
+      for (var key in propOptions) {
+        props[key] = validateProp(key, propOptions, propsData || emptyObject);
       }
-    } else if (vm._directInactive) {
-      return
+    } else {
+      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
+      if (isDef(data.props)) { mergeProps(props, data.props); }
     }
-    if (vm._inactive || vm._inactive === null) {
-      vm._inactive = false;
-      for (var i = 0; i < vm.$children.length; i++) {
-        activateChildComponent(vm.$children[i]);
+
+    var renderContext = new FunctionalRenderContext(
+      data,
+      props,
+      children,
+      contextVm,
+      Ctor
+    );
+
+    var vnode = options.render.call(null, renderContext._c, renderContext);
+
+    if (vnode instanceof VNode) {
+      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
+    } else if (Array.isArray(vnode)) {
+      var vnodes = normalizeChildren(vnode) || [];
+      var res = new Array(vnodes.length);
+      for (var i = 0; i < vnodes.length; i++) {
+        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
       }
-      callHook(vm, 'activated');
+      return res
     }
   }
 
-  function deactivateChildComponent (vm, direct) {
-    if (direct) {
-      vm._directInactive = true;
-      if (isInInactiveTree(vm)) {
-        return
-      }
+  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
+    // #7817 clone node before setting fnContext, otherwise if the node is reused
+    // (e.g. it was from a cached normal slot) the fnContext causes named slots
+    // that should not be matched to match.
+    var clone = cloneVNode(vnode);
+    clone.fnContext = contextVm;
+    clone.fnOptions = options;
+    {
+      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
     }
-    if (!vm._inactive) {
-      vm._inactive = true;
-      for (var i = 0; i < vm.$children.length; i++) {
-        deactivateChildComponent(vm.$children[i]);
-      }
-      callHook(vm, 'deactivated');
+    if (data.slot) {
+      (clone.data || (clone.data = {})).slot = data.slot;
     }
+    return clone
   }
 
-  function callHook (vm, hook) {
-    // #7573 disable dep collection when invoking lifecycle hooks
-    pushTarget();
-    var handlers = vm.$options[hook];
-    var info = hook + " hook";
-    if (handlers) {
-      for (var i = 0, j = handlers.length; i < j; i++) {
-        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
-      }
-    }
-    if (vm._hasHookEvent) {
-      vm.$emit('hook:' + hook);
+  function mergeProps (to, from) {
+    for (var key in from) {
+      to[camelize(key)] = from[key];
     }
-    popTarget();
   }
 
   /*  */
 
-  var MAX_UPDATE_COUNT = 100;
+  /*  */
 
-  var queue = [];
-  var activatedChildren = [];
-  var has = {};
-  var circular = {};
-  var waiting = false;
-  var flushing = false;
-  var index = 0;
+  /*  */
 
-  /**
-   * Reset the scheduler's state.
-   */
-  function resetSchedulerState () {
-    index = queue.length = activatedChildren.length = 0;
-    has = {};
-    {
-      circular = {};
-    }
-    waiting = flushing = false;
-  }
+  /*  */
 
-  // Async edge case #6566 requires saving the timestamp when event listeners are
-  // attached. However, calling performance.now() has a perf overhead especially
-  // if the page has thousands of event listeners. Instead, we take a timestamp
-  // every time the scheduler flushes and use that for all event listeners
-  // attached during that flush.
-  var currentFlushTimestamp = 0;
+  // inline hooks to be invoked on component VNodes during patch
+  var componentVNodeHooks = {
+    init: function init (vnode, hydrating) {
+      if (
+        vnode.componentInstance &&
+        !vnode.componentInstance._isDestroyed &&
+        vnode.data.keepAlive
+      ) {
+        // kept-alive components, treat as a patch
+        var mountedNode = vnode; // work around flow
+        componentVNodeHooks.prepatch(mountedNode, mountedNode);
+      } else {
+        var child = vnode.componentInstance = createComponentInstanceForVnode(
+          vnode,
+          activeInstance
+        );
+        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
+      }
+    },
 
-  // Async edge case fix requires storing an event listener's attach timestamp.
-  var getNow = Date.now;
+    prepatch: function prepatch (oldVnode, vnode) {
+      var options = vnode.componentOptions;
+      var child = vnode.componentInstance = oldVnode.componentInstance;
+      updateChildComponent(
+        child,
+        options.propsData, // updated props
+        options.listeners, // updated listeners
+        vnode, // new parent vnode
+        options.children // new children
+      );
+    },
 
-  // Determine what event timestamp the browser is using. Annoyingly, the
-  // timestamp can either be hi-res ( relative to poge load) or low-res
-  // (relative to UNIX epoch), so in order to compare time we have to use the
-  // same timestamp type when saving the flush timestamp.
-  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-    // if the low-res timestamp which is bigger than the event timestamp
-    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-    // and we need to use the hi-res version for event listeners as well.
-    getNow = function () { return performance.now(); };
-  }
+    insert: function insert (vnode) {
+      var context = vnode.context;
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isMounted) {
+        componentInstance._isMounted = true;
+        callHook(componentInstance, 'mounted');
+      }
+      if (vnode.data.keepAlive) {
+        if (context._isMounted) {
+          // vue-router#1212
+          // During updates, a kept-alive component's child components may
+          // change, so directly walking the tree here may call activated hooks
+          // on incorrect children. Instead we push them into a queue which will
+          // be processed after the whole patch process ended.
+          queueActivatedComponent(componentInstance);
+        } else {
+          activateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    },
 
-  /**
-   * Flush both queues and run the watchers.
-   */
-  function flushSchedulerQueue () {
-    currentFlushTimestamp = getNow();
-    flushing = true;
-    var watcher, id;
+    destroy: function destroy (vnode) {
+      var componentInstance = vnode.componentInstance;
+      if (!componentInstance._isDestroyed) {
+        if (!vnode.data.keepAlive) {
+          componentInstance.$destroy();
+        } else {
+          deactivateChildComponent(componentInstance, true /* direct */);
+        }
+      }
+    }
+  };
 
-    // Sort queue before flush.
-    // This ensures that:
-    // 1. Components are updated from parent to child. (because parent is always
-    //    created before the child)
-    // 2. A component's user watchers are run before its render watcher (because
-    //    user watchers are created before the render watcher)
-    // 3. If a component is destroyed during a parent component's watcher run,
-    //    its watchers can be skipped.
-    queue.sort(function (a, b) { return a.id - b.id; });
+  var hooksToMerge = Object.keys(componentVNodeHooks);
 
-    // do not cache length because more watchers might be pushed
-    // as we run existing watchers
-    for (index = 0; index < queue.length; index++) {
-      watcher = queue[index];
-      if (watcher.before) {
-        watcher.before();
+  function createComponent (
+    Ctor,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    if (isUndef(Ctor)) {
+      return
+    }
+
+    var baseCtor = context.$options._base;
+
+    // plain options object: turn it into a constructor
+    if (isObject(Ctor)) {
+      Ctor = baseCtor.extend(Ctor);
+    }
+
+    // if at this stage it's not a constructor or an async component factory,
+    // reject.
+    if (typeof Ctor !== 'function') {
+      {
+        warn(("Invalid Component definition: " + (String(Ctor))), context);
       }
-      id = watcher.id;
-      has[id] = null;
-      watcher.run();
-      // in dev build, check and stop circular updates.
-      if (has[id] != null) {
-        circular[id] = (circular[id] || 0) + 1;
-        if (circular[id] > MAX_UPDATE_COUNT) {
-          warn(
-            'You may have an infinite update loop ' + (
-              watcher.user
-                ? ("in watcher with expression \"" + (watcher.expression) + "\"")
-                : "in a component render function."
-            ),
-            watcher.vm
-          );
-          break
-        }
+      return
+    }
+
+    // async component
+    var asyncFactory;
+    if (isUndef(Ctor.cid)) {
+      asyncFactory = Ctor;
+      Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
+      if (Ctor === undefined) {
+        // return a placeholder node for async component, which is rendered
+        // as a comment node but preserves all the raw information for the node.
+        // the information will be used for async server-rendering and hydration.
+        return createAsyncPlaceholder(
+          asyncFactory,
+          data,
+          context,
+          children,
+          tag
+        )
       }
     }
 
-    // keep copies of post queues before resetting state
-    var activatedQueue = activatedChildren.slice();
-    var updatedQueue = queue.slice();
+    data = data || {};
 
-    resetSchedulerState();
+    // resolve constructor options in case global mixins are applied after
+    // component constructor creation
+    resolveConstructorOptions(Ctor);
 
-    // call component updated and activated hooks
-    callActivatedHooks(activatedQueue);
-    callUpdatedHooks(updatedQueue);
+    // transform component v-model data into props & events
+    if (isDef(data.model)) {
+      transformModel(Ctor.options, data);
+    }
 
-    // devtool hook
-    /* istanbul ignore if */
-    if (devtools && config.devtools) {
-      devtools.emit('flush');
+    // extract props
+    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
+
+    // functional component
+    if (isTrue(Ctor.options.functional)) {
+      return createFunctionalComponent(Ctor, propsData, data, context, children)
     }
-  }
 
-  function callUpdatedHooks (queue) {
-    var i = queue.length;
-    while (i--) {
-      var watcher = queue[i];
-      var vm = watcher.vm;
-      if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
-        callHook(vm, 'updated');
+    // extract listeners, since these needs to be treated as
+    // child component listeners instead of DOM listeners
+    var listeners = data.on;
+    // replace with listeners with .native modifier
+    // so it gets processed during parent component patch.
+    data.on = data.nativeOn;
+
+    if (isTrue(Ctor.options.abstract)) {
+      // abstract components do not keep anything
+      // other than props & listeners & slot
+
+      // work around flow
+      var slot = data.slot;
+      data = {};
+      if (slot) {
+        data.slot = slot;
       }
     }
-  }
 
-  /**
-   * Queue a kept-alive component that was activated during patch.
-   * The queue will be processed after the entire tree has been patched.
-   */
-  function queueActivatedComponent (vm) {
-    // setting _inactive to false here so that a render function can
-    // rely on checking whether it's in an inactive tree (e.g. router-view)
-    vm._inactive = false;
-    activatedChildren.push(vm);
+    // install component management hooks onto the placeholder node
+    installComponentHooks(data);
+
+    // return a placeholder vnode
+    var name = Ctor.options.name || tag;
+    var vnode = new VNode(
+      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
+      data, undefined, undefined, undefined, context,
+      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
+      asyncFactory
+    );
+
+    return vnode
   }
 
-  function callActivatedHooks (queue) {
-    for (var i = 0; i < queue.length; i++) {
-      queue[i]._inactive = true;
-      activateChildComponent(queue[i], true /* true */);
+  function createComponentInstanceForVnode (
+    vnode, // we know it's MountedComponentVNode but flow doesn't
+    parent // activeInstance in lifecycle state
+  ) {
+    var options = {
+      _isComponent: true,
+      _parentVnode: vnode,
+      parent: parent
+    };
+    // check inline-template render functions
+    var inlineTemplate = vnode.data.inlineTemplate;
+    if (isDef(inlineTemplate)) {
+      options.render = inlineTemplate.render;
+      options.staticRenderFns = inlineTemplate.staticRenderFns;
     }
+    return new vnode.componentOptions.Ctor(options)
   }
 
-  /**
-   * Push a watcher into the watcher queue.
-   * Jobs with duplicate IDs will be skipped unless it's
-   * pushed when the queue is being flushed.
-   */
-  function queueWatcher (watcher) {
-    var id = watcher.id;
-    if (has[id] == null) {
-      has[id] = true;
-      if (!flushing) {
-        queue.push(watcher);
-      } else {
-        // if already flushing, splice the watcher based on its id
-        // if already past its id, it will be run next immediately.
-        var i = queue.length - 1;
-        while (i > index && queue[i].id > watcher.id) {
-          i--;
-        }
-        queue.splice(i + 1, 0, watcher);
+  function installComponentHooks (data) {
+    var hooks = data.hook || (data.hook = {});
+    for (var i = 0; i < hooksToMerge.length; i++) {
+      var key = hooksToMerge[i];
+      var existing = hooks[key];
+      var toMerge = componentVNodeHooks[key];
+      if (existing !== toMerge && !(existing && existing._merged)) {
+        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
       }
-      // queue the flush
-      if (!waiting) {
-        waiting = true;
+    }
+  }
 
-        if (!config.async) {
-          flushSchedulerQueue();
-          return
-        }
-        nextTick(flushSchedulerQueue);
+  function mergeHook$1 (f1, f2) {
+    var merged = function (a, b) {
+      // flow complains about extra args which is why we use any
+      f1(a, b);
+      f2(a, b);
+    };
+    merged._merged = true;
+    return merged
+  }
+
+  // transform component v-model info (value and callback) into
+  // prop and event handler respectively.
+  function transformModel (options, data) {
+    var prop = (options.model && options.model.prop) || 'value';
+    var event = (options.model && options.model.event) || 'input'
+    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
+    var on = data.on || (data.on = {});
+    var existing = on[event];
+    var callback = data.model.callback;
+    if (isDef(existing)) {
+      if (
+        Array.isArray(existing)
+          ? existing.indexOf(callback) === -1
+          : existing !== callback
+      ) {
+        on[event] = [callback].concat(existing);
       }
+    } else {
+      on[event] = callback;
     }
   }
 
   /*  */
 
+  var SIMPLE_NORMALIZE = 1;
+  var ALWAYS_NORMALIZE = 2;
 
+  // wrapper function for providing a more flexible interface
+  // without getting yelled at by flow
+  function createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType,
+    alwaysNormalize
+  ) {
+    if (Array.isArray(data) || isPrimitive(data)) {
+      normalizationType = children;
+      children = data;
+      data = undefined;
+    }
+    if (isTrue(alwaysNormalize)) {
+      normalizationType = ALWAYS_NORMALIZE;
+    }
+    return _createElement(context, tag, data, children, normalizationType)
+  }
 
-  var uid$1 = 0;
-
-  /**
-   * A watcher parses an expression, collects dependencies,
-   * and fires callback when the expression value changes.
-   * This is used for both the $watch() api and directives.
-   */
-  var Watcher = function Watcher (
-    vm,
-    expOrFn,
-    cb,
-    options,
-    isRenderWatcher
+  function _createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType
   ) {
-    this.vm = vm;
-    if (isRenderWatcher) {
-      vm._watcher = this;
+    if (isDef(data) && isDef((data).__ob__)) {
+      warn(
+        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+        'Always create fresh vnode data objects in each render!',
+        context
+      );
+      return createEmptyVNode()
     }
-    vm._watchers.push(this);
-    // options
-    if (options) {
-      this.deep = !!options.deep;
-      this.user = !!options.user;
-      this.lazy = !!options.lazy;
-      this.sync = !!options.sync;
-      this.before = options.before;
-    } else {
-      this.deep = this.user = this.lazy = this.sync = false;
+    // object syntax in v-bind
+    if (isDef(data) && isDef(data.is)) {
+      tag = data.is;
     }
-    this.cb = cb;
-    this.id = ++uid$1; // uid for batching
-    this.active = true;
-    this.dirty = this.lazy; // for lazy watchers
-    this.deps = [];
-    this.newDeps = [];
-    this.depIds = new _Set();
-    this.newDepIds = new _Set();
-    this.expression = expOrFn.toString();
-    // parse expression for getter
-    if (typeof expOrFn === 'function') {
-      this.getter = expOrFn;
-    } else {
-      this.getter = parsePath(expOrFn);
-      if (!this.getter) {
-        this.getter = noop;
+    if (!tag) {
+      // in case of component :is set to falsy value
+      return createEmptyVNode()
+    }
+    // warn against non-primitive key
+    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+    ) {
+      {
         warn(
-          "Failed watching path: \"" + expOrFn + "\" " +
-          'Watcher only accepts simple dot-delimited paths. ' +
-          'For full control, use a function instead.',
-          vm
+          'Avoid using non-primitive value as key, ' +
+          'use string/number value instead.',
+          context
         );
       }
     }
-    this.value = this.lazy
-      ? undefined
-      : this.get();
-  };
-
-  /**
-   * Evaluate the getter, and re-collect dependencies.
-   */
-  Watcher.prototype.get = function get () {
-    pushTarget(this);
-    var value;
-    var vm = this.vm;
-    try {
-      value = this.getter.call(vm, vm);
-    } catch (e) {
-      if (this.user) {
-        handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+    // support single function children as default scoped slot
+    if (Array.isArray(children) &&
+      typeof children[0] === 'function'
+    ) {
+      data = data || {};
+      data.scopedSlots = { default: children[0] };
+      children.length = 0;
+    }
+    if (normalizationType === ALWAYS_NORMALIZE) {
+      children = normalizeChildren(children);
+    } else if (normalizationType === SIMPLE_NORMALIZE) {
+      children = simpleNormalizeChildren(children);
+    }
+    var vnode, ns;
+    if (typeof tag === 'string') {
+      var Ctor;
+      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+      if (config.isReservedTag(tag)) {
+        // platform built-in elements
+        vnode = new VNode(
+          config.parsePlatformTagName(tag), data, children,
+          undefined, undefined, context
+        );
+      } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+        // component
+        vnode = createComponent(Ctor, data, context, children, tag);
       } else {
-        throw e
-      }
-    } finally {
-      // "touch" every property so they are all tracked as
-      // dependencies for deep watching
-      if (this.deep) {
-        traverse(value);
+        // unknown or unlisted namespaced elements
+        // check at runtime because it may get assigned a namespace when its
+        // parent normalizes children
+        vnode = new VNode(
+          tag, data, children,
+          undefined, undefined, context
+        );
       }
-      popTarget();
-      this.cleanupDeps();
+    } else {
+      // direct component options / constructor
+      vnode = createComponent(tag, data, context, children);
     }
-    return value
-  };
+    if (Array.isArray(vnode)) {
+      return vnode
+    } else if (isDef(vnode)) {
+      if (isDef(ns)) { applyNS(vnode, ns); }
+      if (isDef(data)) { registerDeepBindings(data); }
+      return vnode
+    } else {
+      return createEmptyVNode()
+    }
+  }
 
-  /**
-   * Add a dependency to this directive.
-   */
-  Watcher.prototype.addDep = function addDep (dep) {
-    var id = dep.id;
-    if (!this.newDepIds.has(id)) {
-      this.newDepIds.add(id);
-      this.newDeps.push(dep);
-      if (!this.depIds.has(id)) {
-        dep.addSub(this);
+  function applyNS (vnode, ns, force) {
+    vnode.ns = ns;
+    if (vnode.tag === 'foreignObject') {
+      // use default namespace inside foreignObject
+      ns = undefined;
+      force = true;
+    }
+    if (isDef(vnode.children)) {
+      for (var i = 0, l = vnode.children.length; i < l; i++) {
+        var child = vnode.children[i];
+        if (isDef(child.tag) && (
+          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+          applyNS(child, ns, force);
+        }
       }
     }
-  };
+  }
 
-  /**
-   * Clean up for dependency collection.
-   */
-  Watcher.prototype.cleanupDeps = function cleanupDeps () {
-    var i = this.deps.length;
-    while (i--) {
-      var dep = this.deps[i];
-      if (!this.newDepIds.has(dep.id)) {
-        dep.removeSub(this);
-      }
+  // ref #5318
+  // necessary to ensure parent re-render when deep bindings like :style and
+  // :class are used on slot nodes
+  function registerDeepBindings (data) {
+    if (isObject(data.style)) {
+      traverse(data.style);
     }
-    var tmp = this.depIds;
-    this.depIds = this.newDepIds;
-    this.newDepIds = tmp;
-    this.newDepIds.clear();
-    tmp = this.deps;
-    this.deps = this.newDeps;
-    this.newDeps = tmp;
-    this.newDeps.length = 0;
-  };
+    if (isObject(data.class)) {
+      traverse(data.class);
+    }
+  }
+
+  /*  */
+
+  function initRender (vm) {
+    vm._vnode = null; // the root of the child tree
+    vm._staticTrees = null; // v-once cached trees
+    var options = vm.$options;
+    var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
+    var renderContext = parentVnode && parentVnode.context;
+    vm.$slots = resolveSlots(options._renderChildren, renderContext);
+    vm.$scopedSlots = emptyObject;
+    // bind the createElement fn to this instance
+    // so that we get proper render context inside it.
+    // args order: tag, data, children, normalizationType, alwaysNormalize
+    // internal version is used by render functions compiled from templates
+    vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
+    // normalization is always applied for the public version, used in
+    // user-written render functions.
+    vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+
+    // $attrs & $listeners are exposed for easier HOC creation.
+    // they need to be reactive so that HOCs using them are always updated
+    var parentData = parentVnode && parentVnode.data;
 
-  /**
-   * Subscriber interface.
-   * Will be called when a dependency changes.
-   */
-  Watcher.prototype.update = function update () {
     /* istanbul ignore else */
-    if (this.lazy) {
-      this.dirty = true;
-    } else if (this.sync) {
-      this.run();
-    } else {
-      queueWatcher(this);
+    {
+      defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
+      }, true);
+      defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
+        !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
+      }, true);
     }
-  };
+  }
 
-  /**
-   * Scheduler job interface.
-   * Will be called by the scheduler.
-   */
-  Watcher.prototype.run = function run () {
-    if (this.active) {
-      var value = this.get();
-      if (
-        value !== this.value ||
-        // Deep watchers and watchers on Object/Arrays should fire even
-        // when the value is the same, because the value may
-        // have mutated.
-        isObject(value) ||
-        this.deep
-      ) {
-        // set new value
-        var oldValue = this.value;
-        this.value = value;
-        if (this.user) {
-          try {
-            this.cb.call(this.vm, value, oldValue);
-          } catch (e) {
-            handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
-          }
-        } else {
-          this.cb.call(this.vm, value, oldValue);
-        }
-      }
-    }
-  };
+  var currentRenderingInstance = null;
 
-  /**
-   * Evaluate the value of the watcher.
-   * This only gets called for lazy watchers.
-   */
-  Watcher.prototype.evaluate = function evaluate () {
-    this.value = this.get();
-    this.dirty = false;
-  };
+  function renderMixin (Vue) {
+    // install runtime convenience helpers
+    installRenderHelpers(Vue.prototype);
 
-  /**
-   * Depend on all deps collected by this watcher.
-   */
-  Watcher.prototype.depend = function depend () {
-    var i = this.deps.length;
-    while (i--) {
-      this.deps[i].depend();
-    }
-  };
+    Vue.prototype.$nextTick = function (fn) {
+      return nextTick(fn, this)
+    };
 
-  /**
-   * Remove self from all dependencies' subscriber list.
-   */
-  Watcher.prototype.teardown = function teardown () {
-    if (this.active) {
-      // remove self from vm's watcher list
-      // this is a somewhat expensive operation so we skip it
-      // if the vm is being destroyed.
-      if (!this.vm._isBeingDestroyed) {
-        remove(this.vm._watchers, this);
+    Vue.prototype._render = function () {
+      var vm = this;
+      var ref = vm.$options;
+      var render = ref.render;
+      var _parentVnode = ref._parentVnode;
+
+      if (_parentVnode) {
+        vm.$scopedSlots = normalizeScopedSlots(
+          _parentVnode.data.scopedSlots,
+          vm.$slots
+        );
       }
-      var i = this.deps.length;
-      while (i--) {
-        this.deps[i].removeSub(this);
+
+      // set parent vnode. this allows render functions to have access
+      // to the data on the placeholder node.
+      vm.$vnode = _parentVnode;
+      // render self
+      var vnode;
+      try {
+        // There's no need to maintain a stack becaues all render fns are called
+        // separately from one another. Nested component's render fns are called
+        // when parent component is patched.
+        currentRenderingInstance = vm;
+        vnode = render.call(vm._renderProxy, vm.$createElement);
+      } catch (e) {
+        handleError(e, vm, "render");
+        // return error render result,
+        // or previous vnode to prevent render error causing blank component
+        /* istanbul ignore else */
+        if (vm.$options.renderError) {
+          try {
+            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
+          } catch (e) {
+            handleError(e, vm, "renderError");
+            vnode = vm._vnode;
+          }
+        } else {
+          vnode = vm._vnode;
+        }
+      } finally {
+        currentRenderingInstance = null;
       }
-      this.active = false;
-    }
-  };
+      // if the returned array contains only a single node, allow it
+      if (Array.isArray(vnode) && vnode.length === 1) {
+        vnode = vnode[0];
+      }
+      // return empty vnode in case the render function errored out
+      if (!(vnode instanceof VNode)) {
+        if (Array.isArray(vnode)) {
+          warn(
+            'Multiple root nodes returned from render function. Render function ' +
+            'should return a single root node.',
+            vm
+          );
+        }
+        vnode = createEmptyVNode();
+      }
+      // set parent
+      vnode.parent = _parentVnode;
+      return vnode
+    };
+  }
 
   /*  */
 
-  var sharedPropertyDefinition = {
-    enumerable: true,
-    configurable: true,
-    get: noop,
-    set: noop
-  };
+  function ensureCtor (comp, base) {
+    if (
+      comp.__esModule ||
+      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+    ) {
+      comp = comp.default;
+    }
+    return isObject(comp)
+      ? base.extend(comp)
+      : comp
+  }
 
-  function proxy (target, sourceKey, key) {
-    sharedPropertyDefinition.get = function proxyGetter () {
-      return this[sourceKey][key]
-    };
-    sharedPropertyDefinition.set = function proxySetter (val) {
-      this[sourceKey][key] = val;
-    };
-    Object.defineProperty(target, key, sharedPropertyDefinition);
+  function createAsyncPlaceholder (
+    factory,
+    data,
+    context,
+    children,
+    tag
+  ) {
+    var node = createEmptyVNode();
+    node.asyncFactory = factory;
+    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+    return node
   }
 
-  function initState (vm) {
-    vm._watchers = [];
-    var opts = vm.$options;
-    if (opts.props) { initProps(vm, opts.props); }
-    if (opts.methods) { initMethods(vm, opts.methods); }
-    if (opts.data) {
-      initData(vm);
-    } else {
-      observe(vm._data = {}, true /* asRootData */);
+  function resolveAsyncComponent (
+    factory,
+    baseCtor
+  ) {
+    if (isTrue(factory.error) && isDef(factory.errorComp)) {
+      return factory.errorComp
     }
-    if (opts.computed) { initComputed(vm, opts.computed); }
-    if (opts.watch && opts.watch !== nativeWatch) {
-      initWatch(vm, opts.watch);
+
+    if (isDef(factory.resolved)) {
+      return factory.resolved
     }
-  }
 
-  function initProps (vm, propsOptions) {
-    var propsData = vm.$options.propsData || {};
-    var props = vm._props = {};
-    // cache prop keys so that future props updates can iterate using Array
-    // instead of dynamic object key enumeration.
-    var keys = vm.$options._propKeys = [];
-    var isRoot = !vm.$parent;
-    // root instance props should be converted
-    if (!isRoot) {
-      toggleObserving(false);
+    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+      return factory.loadingComp
     }
-    var loop = function ( key ) {
-      keys.push(key);
-      var value = validateProp(key, propsOptions, propsData, vm);
-      /* istanbul ignore else */
-      {
-        var hyphenatedKey = hyphenate(key);
-        if (isReservedAttribute(hyphenatedKey) ||
-            config.isReservedAttr(hyphenatedKey)) {
-          warn(
-            ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
-            vm
-          );
+
+    var owner = currentRenderingInstance;
+    if (isDef(factory.owners)) {
+      // already pending
+      factory.owners.push(owner);
+    } else {
+      var owners = factory.owners = [owner];
+      var sync = true;
+
+      var forceRender = function (renderCompleted) {
+        for (var i = 0, l = owners.length; i < l; i++) {
+          (owners[i]).$forceUpdate();
         }
-        defineReactive$$1(props, key, value, function () {
-          if (!isRoot && !isUpdatingChildComponent) {
-            warn(
-              "Avoid mutating a prop directly since the value will be " +
-              "overwritten whenever the parent component re-renders. " +
-              "Instead, use a data or computed property based on the prop's " +
-              "value. Prop being mutated: \"" + key + "\"",
-              vm
-            );
-          }
-        });
-      }
-      // static props are already proxied on the component's prototype
-      // during Vue.extend(). We only need to proxy props defined at
-      // instantiation here.
-      if (!(key in vm)) {
-        proxy(vm, "_props", key);
-      }
-    };
 
-    for (var key in propsOptions) loop( key );
-    toggleObserving(true);
-  }
+        if (renderCompleted) {
+          owners.length = 0;
+        }
+      };
 
-  function initData (vm) {
-    var data = vm.$options.data;
-    data = vm._data = typeof data === 'function'
-      ? getData(data, vm)
-      : data || {};
-    if (!isPlainObject(data)) {
-      data = {};
-      warn(
-        'data functions should return an object:\n' +
-        'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
-        vm
-      );
-    }
-    // proxy data on instance
-    var keys = Object.keys(data);
-    var props = vm.$options.props;
-    var methods = vm.$options.methods;
-    var i = keys.length;
-    while (i--) {
-      var key = keys[i];
-      {
-        if (methods && hasOwn(methods, key)) {
-          warn(
-            ("Method \"" + key + "\" has already been defined as a data property."),
-            vm
-          );
+      var resolve = once(function (res) {
+        // cache resolved
+        factory.resolved = ensureCtor(res, baseCtor);
+        // invoke callbacks only if this is not a synchronous resolve
+        // (async resolves are shimmed as synchronous during SSR)
+        if (!sync) {
+          forceRender(true);
+        } else {
+          owners.length = 0;
         }
-      }
-      if (props && hasOwn(props, key)) {
+      });
+
+      var reject = once(function (reason) {
         warn(
-          "The data property \"" + key + "\" is already declared as a prop. " +
-          "Use prop default value instead.",
-          vm
+          "Failed to resolve async component: " + (String(factory)) +
+          (reason ? ("\nReason: " + reason) : '')
         );
-      } else if (!isReserved(key)) {
-        proxy(vm, "_data", key);
-      }
-    }
-    // observe data
-    observe(data, true /* asRootData */);
-  }
+        if (isDef(factory.errorComp)) {
+          factory.error = true;
+          forceRender(true);
+        }
+      });
+
+      var res = factory(resolve, reject);
+
+      if (isObject(res)) {
+        if (isPromise(res)) {
+          // () => Promise
+          if (isUndef(factory.resolved)) {
+            res.then(resolve, reject);
+          }
+        } else if (isPromise(res.component)) {
+          res.component.then(resolve, reject);
+
+          if (isDef(res.error)) {
+            factory.errorComp = ensureCtor(res.error, baseCtor);
+          }
+
+          if (isDef(res.loading)) {
+            factory.loadingComp = ensureCtor(res.loading, baseCtor);
+            if (res.delay === 0) {
+              factory.loading = true;
+            } else {
+              setTimeout(function () {
+                if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                  factory.loading = true;
+                  forceRender(false);
+                }
+              }, res.delay || 200);
+            }
+          }
+
+          if (isDef(res.timeout)) {
+            setTimeout(function () {
+              if (isUndef(factory.resolved)) {
+                reject(
+                  "timeout (" + (res.timeout) + "ms)"
+                );
+              }
+            }, res.timeout);
+          }
+        }
+      }
 
-  function getData (data, vm) {
-    // #7573 disable dep collection when invoking data getters
-    pushTarget();
-    try {
-      return data.call(vm, vm)
-    } catch (e) {
-      handleError(e, vm, "data()");
-      return {}
-    } finally {
-      popTarget();
+      sync = false;
+      // return in case resolved synchronously
+      return factory.loading
+        ? factory.loadingComp
+        : factory.resolved
     }
   }
 
-  var computedWatcherOptions = { lazy: true };
-
-  function initComputed (vm, computed) {
-    // $flow-disable-line
-    var watchers = vm._computedWatchers = Object.create(null);
-    // computed properties are just getters during SSR
-    var isSSR = isServerRendering();
+  /*  */
 
-    for (var key in computed) {
-      var userDef = computed[key];
-      var getter = typeof userDef === 'function' ? userDef : userDef.get;
-      if (getter == null) {
-        warn(
-          ("Getter is missing for computed property \"" + key + "\"."),
-          vm
-        );
-      }
+  function isAsyncPlaceholder (node) {
+    return node.isComment && node.asyncFactory
+  }
 
-      if (!isSSR) {
-        // create internal watcher for the computed property.
-        watchers[key] = new Watcher(
-          vm,
-          getter || noop,
-          noop,
-          computedWatcherOptions
-        );
-      }
+  /*  */
 
-      // component-defined computed properties are already defined on the
-      // component prototype. We only need to define computed properties defined
-      // at instantiation here.
-      if (!(key in vm)) {
-        defineComputed(vm, key, userDef);
-      } else {
-        if (key in vm.$data) {
-          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
-        } else if (vm.$options.props && key in vm.$options.props) {
-          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+  function getFirstComponentChild (children) {
+    if (Array.isArray(children)) {
+      for (var i = 0; i < children.length; i++) {
+        var c = children[i];
+        if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {
+          return c
         }
       }
     }
   }
 
-  function defineComputed (
-    target,
-    key,
-    userDef
-  ) {
-    var shouldCache = !isServerRendering();
-    if (typeof userDef === 'function') {
-      sharedPropertyDefinition.get = shouldCache
-        ? createComputedGetter(key)
-        : createGetterInvoker(userDef);
-      sharedPropertyDefinition.set = noop;
-    } else {
-      sharedPropertyDefinition.get = userDef.get
-        ? shouldCache && userDef.cache !== false
-          ? createComputedGetter(key)
-          : createGetterInvoker(userDef.get)
-        : noop;
-      sharedPropertyDefinition.set = userDef.set || noop;
-    }
-    if (sharedPropertyDefinition.set === noop) {
-      sharedPropertyDefinition.set = function () {
-        warn(
-          ("Computed property \"" + key + "\" was assigned to but it has no setter."),
-          this
-        );
-      };
-    }
-    Object.defineProperty(target, key, sharedPropertyDefinition);
-  }
+  /*  */
 
-  function createComputedGetter (key) {
-    return function computedGetter () {
-      var watcher = this._computedWatchers && this._computedWatchers[key];
-      if (watcher) {
-        if (watcher.dirty) {
-          watcher.evaluate();
-        }
-        if (Dep.target) {
-          watcher.depend();
-        }
-        return watcher.value
-      }
+  /*  */
+
+  function initEvents (vm) {
+    vm._events = Object.create(null);
+    vm._hasHookEvent = false;
+    // init parent attached events
+    var listeners = vm.$options._parentListeners;
+    if (listeners) {
+      updateComponentListeners(vm, listeners);
     }
   }
 
-  function createGetterInvoker(fn) {
-    return function computedGetter () {
-      return fn.call(this, this)
-    }
+  var target;
+
+  function add (event, fn) {
+    target.$on(event, fn);
   }
 
-  function initMethods (vm, methods) {
-    var props = vm.$options.props;
-    for (var key in methods) {
-      {
-        if (typeof methods[key] !== 'function') {
-          warn(
-            "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
-            "Did you reference the function correctly?",
-            vm
-          );
-        }
-        if (props && hasOwn(props, key)) {
-          warn(
-            ("Method \"" + key + "\" has already been defined as a prop."),
-            vm
-          );
-        }
-        if ((key in vm) && isReserved(key)) {
-          warn(
-            "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
-            "Avoid defining component methods that start with _ or $."
-          );
-        }
-      }
-      vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
-    }
+  function remove$1 (event, fn) {
+    target.$off(event, fn);
   }
 
-  function initWatch (vm, watch) {
-    for (var key in watch) {
-      var handler = watch[key];
-      if (Array.isArray(handler)) {
-        for (var i = 0; i < handler.length; i++) {
-          createWatcher(vm, key, handler[i]);
-        }
-      } else {
-        createWatcher(vm, key, handler);
+  function createOnceHandler (event, fn) {
+    var _target = target;
+    return function onceHandler () {
+      var res = fn.apply(null, arguments);
+      if (res !== null) {
+        _target.$off(event, onceHandler);
       }
     }
   }
 
-  function createWatcher (
+  function updateComponentListeners (
     vm,
-    expOrFn,
-    handler,
-    options
+    listeners,
+    oldListeners
   ) {
-    if (isPlainObject(handler)) {
-      options = handler;
-      handler = handler.handler;
-    }
-    if (typeof handler === 'string') {
-      handler = vm[handler];
-    }
-    return vm.$watch(expOrFn, handler, options)
+    target = vm;
+    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+    target = undefined;
   }
 
-  function stateMixin (Vue) {
-    // flow somehow has problems with directly declared definition object
-    // when using Object.defineProperty, so we have to procedurally build up
-    // the object here.
-    var dataDef = {};
-    dataDef.get = function () { return this._data };
-    var propsDef = {};
-    propsDef.get = function () { return this._props };
-    {
-      dataDef.set = function () {
-        warn(
-          'Avoid replacing instance root $data. ' +
-          'Use nested data properties instead.',
-          this
-        );
-      };
-      propsDef.set = function () {
-        warn("$props is readonly.", this);
-      };
-    }
-    Object.defineProperty(Vue.prototype, '$data', dataDef);
-    Object.defineProperty(Vue.prototype, '$props', propsDef);
+  function eventsMixin (Vue) {
+    var hookRE = /^hook:/;
+    Vue.prototype.$on = function (event, fn) {
+      var vm = this;
+      if (Array.isArray(event)) {
+        for (var i = 0, l = event.length; i < l; i++) {
+          vm.$on(event[i], fn);
+        }
+      } else {
+        (vm._events[event] || (vm._events[event] = [])).push(fn);
+        // optimize hook:event cost by using a boolean flag marked at registration
+        // instead of a hash lookup
+        if (hookRE.test(event)) {
+          vm._hasHookEvent = true;
+        }
+      }
+      return vm
+    };
 
-    Vue.prototype.$set = set;
-    Vue.prototype.$delete = del;
+    Vue.prototype.$once = function (event, fn) {
+      var vm = this;
+      function on () {
+        vm.$off(event, on);
+        fn.apply(vm, arguments);
+      }
+      on.fn = fn;
+      vm.$on(event, on);
+      return vm
+    };
+
+    Vue.prototype.$off = function (event, fn) {
+      var vm = this;
+      // all
+      if (!arguments.length) {
+        vm._events = Object.create(null);
+        return vm
+      }
+      // array of events
+      if (Array.isArray(event)) {
+        for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {
+          vm.$off(event[i$1], fn);
+        }
+        return vm
+      }
+      // specific event
+      var cbs = vm._events[event];
+      if (!cbs) {
+        return vm
+      }
+      if (!fn) {
+        vm._events[event] = null;
+        return vm
+      }
+      // specific handler
+      var cb;
+      var i = cbs.length;
+      while (i--) {
+        cb = cbs[i];
+        if (cb === fn || cb.fn === fn) {
+          cbs.splice(i, 1);
+          break
+        }
+      }
+      return vm
+    };
 
-    Vue.prototype.$watch = function (
-      expOrFn,
-      cb,
-      options
-    ) {
+    Vue.prototype.$emit = function (event) {
       var vm = this;
-      if (isPlainObject(cb)) {
-        return createWatcher(vm, expOrFn, cb, options)
-      }
-      options = options || {};
-      options.user = true;
-      var watcher = new Watcher(vm, expOrFn, cb, options);
-      if (options.immediate) {
-        try {
-          cb.call(vm, watcher.value);
-        } catch (error) {
-          handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
+      {
+        var lowerCaseEvent = event.toLowerCase();
+        if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {
+          tip(
+            "Event \"" + lowerCaseEvent + "\" is emitted in component " +
+            (formatComponentName(vm)) + " but the handler is registered for \"" + event + "\". " +
+            "Note that HTML attributes are case-insensitive and you cannot use " +
+            "v-on to listen to camelCase events when using in-DOM templates. " +
+            "You should probably use \"" + (hyphenate(event)) + "\" instead of \"" + event + "\"."
+          );
         }
       }
-      return function unwatchFn () {
-        watcher.teardown();
+      var cbs = vm._events[event];
+      if (cbs) {
+        cbs = cbs.length > 1 ? toArray(cbs) : cbs;
+        var args = toArray(arguments, 1);
+        var info = "event handler for \"" + event + "\"";
+        for (var i = 0, l = cbs.length; i < l; i++) {
+          invokeWithErrorHandling(cbs[i], vm, args, vm, info);
+        }
       }
+      return vm
     };
   }
 
   /*  */
 
-  function initProvide (vm) {
-    var provide = vm.$options.provide;
-    if (provide) {
-      vm._provided = typeof provide === 'function'
-        ? provide.call(vm)
-        : provide;
-    }
-  }
+  var activeInstance = null;
+  var isUpdatingChildComponent = false;
 
-  function initInjections (vm) {
-    var result = resolveInject(vm.$options.inject, vm);
-    if (result) {
-      toggleObserving(false);
-      Object.keys(result).forEach(function (key) {
-        /* istanbul ignore else */
-        {
-          defineReactive$$1(vm, key, result[key], function () {
-            warn(
-              "Avoid mutating an injected value directly since the changes will be " +
-              "overwritten whenever the provided component re-renders. " +
-              "injection being mutated: \"" + key + "\"",
-              vm
-            );
-          });
-        }
-      });
-      toggleObserving(true);
+  function setActiveInstance(vm) {
+    var prevActiveInstance = activeInstance;
+    activeInstance = vm;
+    return function () {
+      activeInstance = prevActiveInstance;
     }
   }
 
-  function resolveInject (inject, vm) {
-    if (inject) {
-      // inject is :any because flow is not smart enough to figure out cached
-      var result = Object.create(null);
-      var keys = hasSymbol
-        ? Reflect.ownKeys(inject)
-        : Object.keys(inject);
+  function initLifecycle (vm) {
+    var options = vm.$options;
 
-      for (var i = 0; i < keys.length; i++) {
-        var key = keys[i];
-        // #6574 in case the inject object is observed...
-        if (key === '__ob__') { continue }
-        var provideKey = inject[key].from;
-        var source = vm;
-        while (source) {
-          if (source._provided && hasOwn(source._provided, provideKey)) {
-            result[key] = source._provided[provideKey];
-            break
-          }
-          source = source.$parent;
-        }
-        if (!source) {
-          if ('default' in inject[key]) {
-            var provideDefault = inject[key].default;
-            result[key] = typeof provideDefault === 'function'
-              ? provideDefault.call(vm)
-              : provideDefault;
-          } else {
-            warn(("Injection \"" + key + "\" not found"), vm);
-          }
-        }
+    // locate first non-abstract parent
+    var parent = options.parent;
+    if (parent && !options.abstract) {
+      while (parent.$options.abstract && parent.$parent) {
+        parent = parent.$parent;
       }
-      return result
+      parent.$children.push(vm);
     }
-  }
-
-  /*  */
 
-  function normalizeScopedSlots (
-    slots,
-    normalSlots
-  ) {
-    var res;
-    if (!slots) {
-      res = {};
-    } else if (slots._normalized) {
-      return slots
-    } else {
-      res = {};
-      for (var key in slots) {
-        if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-        }
-      }
-    }
-    // expose normal slots on scopedSlots
-    for (var key$1 in normalSlots) {
-      if (!(key$1 in res)) {
-        res[key$1] = proxyNormalSlot(normalSlots, key$1);
-      }
-    }
-    res._normalized = true;
-    res.$stable = slots ? slots.$stable : true;
-    return res
-  }
+    vm.$parent = parent;
+    vm.$root = parent ? parent.$root : vm;
 
-  function normalizeScopedSlot(normalSlots, key, fn) {
-    var normalized = function (scope) {
-      if ( scope === void 0 ) scope = {};
+    vm.$children = [];
+    vm.$refs = {};
 
-      var res = fn(scope);
-      return res && typeof res === 'object' && !Array.isArray(res)
-        ? [res] // single vnode
-        : normalizeChildren(res)
-    };
-    // proxy scoped slots on normal $slots
-    if (!hasOwn(normalSlots, key)) {
-      Object.defineProperty(normalSlots, key, {
-        get: normalized
-      });
-    }
-    return normalized
+    vm._watcher = null;
+    vm._inactive = null;
+    vm._directInactive = false;
+    vm._isMounted = false;
+    vm._isDestroyed = false;
+    vm._isBeingDestroyed = false;
   }
 
-  function proxyNormalSlot(slots, key) {
-    return function () { return slots[key]; }
-  }
+  function lifecycleMixin (Vue) {
+    Vue.prototype._update = function (vnode, hydrating) {
+      var vm = this;
+      var prevEl = vm.$el;
+      var prevVnode = vm._vnode;
+      var restoreActiveInstance = setActiveInstance(vm);
+      vm._vnode = vnode;
+      // Vue.prototype.__patch__ is injected in entry points
+      // based on the rendering backend used.
+      if (!prevVnode) {
+        // initial render
+        vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);
+      } else {
+        // updates
+        vm.$el = vm.__patch__(prevVnode, vnode);
+      }
+      restoreActiveInstance();
+      // update __vue__ reference
+      if (prevEl) {
+        prevEl.__vue__ = null;
+      }
+      if (vm.$el) {
+        vm.$el.__vue__ = vm;
+      }
+      // if parent is an HOC, update its $el as well
+      if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
+        vm.$parent.$el = vm.$el;
+      }
+      // updated hook is called by the scheduler to ensure that children are
+      // updated in a parent's updated hook.
+    };
 
-  /*  */
+    Vue.prototype.$forceUpdate = function () {
+      var vm = this;
+      if (vm._watcher) {
+        vm._watcher.update();
+      }
+    };
 
-  /**
-   * Runtime helper for rendering v-for lists.
-   */
-  function renderList (
-    val,
-    render
-  ) {
-    var ret, i, l, keys, key;
-    if (Array.isArray(val) || typeof val === 'string') {
-      ret = new Array(val.length);
-      for (i = 0, l = val.length; i < l; i++) {
-        ret[i] = render(val[i], i);
+    Vue.prototype.$destroy = function () {
+      var vm = this;
+      if (vm._isBeingDestroyed) {
+        return
       }
-    } else if (typeof val === 'number') {
-      ret = new Array(val);
-      for (i = 0; i < val; i++) {
-        ret[i] = render(i + 1, i);
+      callHook(vm, 'beforeDestroy');
+      vm._isBeingDestroyed = true;
+      // remove self from parent
+      var parent = vm.$parent;
+      if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
+        remove(parent.$children, vm);
+      }
+      // teardown watchers
+      if (vm._watcher) {
+        vm._watcher.teardown();
+      }
+      var i = vm._watchers.length;
+      while (i--) {
+        vm._watchers[i].teardown();
+      }
+      // remove reference from data ob
+      // frozen object may not have observer.
+      if (vm._data.__ob__) {
+        vm._data.__ob__.vmCount--;
+      }
+      // call the last hook...
+      vm._isDestroyed = true;
+      // invoke destroy hooks on current rendered tree
+      vm.__patch__(vm._vnode, null);
+      // fire destroyed hook
+      callHook(vm, 'destroyed');
+      // turn off all instance listeners.
+      vm.$off();
+      // remove __vue__ reference
+      if (vm.$el) {
+        vm.$el.__vue__ = null;
       }
-    } else if (isObject(val)) {
-      if (hasSymbol && val[Symbol.iterator]) {
-        ret = [];
-        var iterator = val[Symbol.iterator]();
-        var result = iterator.next();
-        while (!result.done) {
-          ret.push(render(result.value, ret.length));
-          result = iterator.next();
-        }
-      } else {
-        keys = Object.keys(val);
-        ret = new Array(keys.length);
-        for (i = 0, l = keys.length; i < l; i++) {
-          key = keys[i];
-          ret[i] = render(val[key], key, i);
-        }
+      // release circular reference (#6759)
+      if (vm.$vnode) {
+        vm.$vnode.parent = null;
       }
-    }
-    if (!isDef(ret)) {
-      ret = [];
-    }
-    (ret)._isVList = true;
-    return ret
+    };
   }
 
-  /*  */
-
-  /**
-   * Runtime helper for rendering <slot>
-   */
-  function renderSlot (
-    name,
-    fallback,
-    props,
-    bindObject
+  function mountComponent (
+    vm,
+    el,
+    hydrating
   ) {
-    var scopedSlotFn = this.$scopedSlots[name];
-    var nodes;
-    if (scopedSlotFn) { // scoped slot
-      props = props || {};
-      if (bindObject) {
-        if (!isObject(bindObject)) {
+    vm.$el = el;
+    if (!vm.$options.render) {
+      vm.$options.render = createEmptyVNode;
+      {
+        /* istanbul ignore if */
+        if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||
+          vm.$options.el || el) {
           warn(
-            'slot v-bind without argument expects an Object',
-            this
+            'You are using the runtime-only build of Vue where the template ' +
+            'compiler is not available. Either pre-compile the templates into ' +
+            'render functions, or use the compiler-included build.',
+            vm
+          );
+        } else {
+          warn(
+            'Failed to mount component: template or render function not defined.',
+            vm
           );
         }
-        props = extend(extend({}, bindObject), props);
       }
-      nodes = scopedSlotFn(props) || fallback;
-    } else {
-      nodes = this.$slots[name] || fallback;
     }
+    callHook(vm, 'beforeMount');
 
-    var target = props && props.slot;
-    if (target) {
-      return this.$createElement('template', { slot: target }, nodes)
-    } else {
-      return nodes
-    }
-  }
+    var updateComponent;
+    /* istanbul ignore if */
+    if (config.performance && mark) {
+      updateComponent = function () {
+        var name = vm._name;
+        var id = vm._uid;
+        var startTag = "vue-perf-start:" + id;
+        var endTag = "vue-perf-end:" + id;
 
-  /*  */
+        mark(startTag);
+        var vnode = vm._render();
+        mark(endTag);
+        measure(("vue " + name + " render"), startTag, endTag);
 
-  /**
-   * Runtime helper for resolving filters
-   */
-  function resolveFilter (id) {
-    return resolveAsset(this.$options, 'filters', id, true) || identity
-  }
+        mark(startTag);
+        vm._update(vnode, hydrating);
+        mark(endTag);
+        measure(("vue " + name + " patch"), startTag, endTag);
+      };
+    } else {
+      updateComponent = function () {
+        vm._update(vm._render(), hydrating);
+      };
+    }
 
-  /*  */
+    // we set this to vm._watcher inside the watcher's constructor
+    // since the watcher's initial patch may call $forceUpdate (e.g. inside child
+    // component's mounted hook), which relies on vm._watcher being already defined
+    new Watcher(vm, updateComponent, noop, {
+      before: function before () {
+        if (vm._isMounted && !vm._isDestroyed) {
+          callHook(vm, 'beforeUpdate');
+        }
+      }
+    }, true /* isRenderWatcher */);
+    hydrating = false;
 
-  function isKeyNotMatch (expect, actual) {
-    if (Array.isArray(expect)) {
-      return expect.indexOf(actual) === -1
-    } else {
-      return expect !== actual
+    // manually mounted instance, call mounted on self
+    // mounted is called for render-created child components in its inserted hook
+    if (vm.$vnode == null) {
+      vm._isMounted = true;
+      callHook(vm, 'mounted');
     }
+    return vm
   }
 
-  /**
-   * Runtime helper for checking keyCodes from config.
-   * exposed as Vue.prototype._k
-   * passing in eventKeyName as last argument separately for backwards compat
-   */
-  function checkKeyCodes (
-    eventKeyCode,
-    key,
-    builtInKeyCode,
-    eventKeyName,
-    builtInKeyName
+  function updateChildComponent (
+    vm,
+    propsData,
+    listeners,
+    parentVnode,
+    renderChildren
   ) {
-    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-      return isKeyNotMatch(builtInKeyName, eventKeyName)
-    } else if (mappedKeyCode) {
-      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-    } else if (eventKeyName) {
-      return hyphenate(eventKeyName) !== key
+    {
+      isUpdatingChildComponent = true;
     }
-  }
 
-  /*  */
+    // determine whether component has slot children
+    // we need to do this before overwriting $options._renderChildren.
 
-  /**
-   * Runtime helper for merging v-bind="object" into a VNode's data.
-   */
-  function bindObjectProps (
-    data,
-    tag,
-    value,
-    asProp,
-    isSync
-  ) {
-    if (value) {
-      if (!isObject(value)) {
-        warn(
-          'v-bind without argument expects an Object or Array value',
-          this
-        );
-      } else {
-        if (Array.isArray(value)) {
-          value = toObject(value);
-        }
-        var hash;
-        var loop = function ( key ) {
-          if (
-            key === 'class' ||
-            key === 'style' ||
-            isReservedAttribute(key)
-          ) {
-            hash = data;
-          } else {
-            var type = data.attrs && data.attrs.type;
-            hash = asProp || config.mustUseProp(tag, type, key)
-              ? data.domProps || (data.domProps = {})
-              : data.attrs || (data.attrs = {});
-          }
-          var camelizedKey = camelize(key);
-          if (!(key in hash) && !(camelizedKey in hash)) {
-            hash[key] = value[key];
+    // check if there are dynamic scopedSlots (hand-written or compiled but with
+    // dynamic slot names). Static scoped slots compiled from template has the
+    // "$stable" marker.
+    var hasDynamicScopedSlot = !!(
+      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    );
 
-            if (isSync) {
-              var on = data.on || (data.on = {});
-              on[("update:" + camelizedKey)] = function ($event) {
-                value[key] = $event;
-              };
-            }
-          }
-        };
+    // Any static slot children from the parent may have changed during parent's
+    // update. Dynamic scoped slots may also have changed. In such cases, a forced
+    // update is necessary to ensure correctness.
+    var needsForceUpdate = !!(
+      renderChildren ||               // has new static slots
+      vm.$options._renderChildren ||  // has old static slots
+      hasDynamicScopedSlot
+    );
+
+    vm.$options._parentVnode = parentVnode;
+    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+    if (vm._vnode) { // update child tree's parent
+      vm._vnode.parent = parentVnode;
+    }
+    vm.$options._renderChildren = renderChildren;
+
+    // update $attrs and $listeners hash
+    // these are also reactive so they may trigger child update if the child
+    // used them during render
+    vm.$attrs = parentVnode.data.attrs || emptyObject;
+    vm.$listeners = listeners || emptyObject;
+
+    // update props
+    if (propsData && vm.$options.props) {
+      toggleObserving(false);
+      var props = vm._props;
+      var propKeys = vm.$options._propKeys || [];
+      for (var i = 0; i < propKeys.length; i++) {
+        var key = propKeys[i];
+        var propOptions = vm.$options.props; // wtf flow?
+        props[key] = validateProp(key, propOptions, propsData, vm);
+      }
+      toggleObserving(true);
+      // keep a copy of raw propsData
+      vm.$options.propsData = propsData;
+    }
+
+    // update listeners
+    listeners = listeners || emptyObject;
+    var oldListeners = vm.$options._parentListeners;
+    vm.$options._parentListeners = listeners;
+    updateComponentListeners(vm, listeners, oldListeners);
 
-        for (var key in value) loop( key );
-      }
+    // resolve slots + force update if has children
+    if (needsForceUpdate) {
+      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+      vm.$forceUpdate();
     }
-    return data
-  }
-
-  /*  */
 
-  /**
-   * Runtime helper for rendering static trees.
-   */
-  function renderStatic (
-    index,
-    isInFor
-  ) {
-    var cached = this._staticTrees || (this._staticTrees = []);
-    var tree = cached[index];
-    // if has already-rendered static tree and not inside v-for,
-    // we can reuse the same tree.
-    if (tree && !isInFor) {
-      return tree
+    {
+      isUpdatingChildComponent = false;
     }
-    // otherwise, render a fresh tree.
-    tree = cached[index] = this.$options.staticRenderFns[index].call(
-      this._renderProxy,
-      null,
-      this // for render fns generated for functional component templates
-    );
-    markStatic(tree, ("__static__" + index), false);
-    return tree
   }
 
-  /**
-   * Runtime helper for v-once.
-   * Effectively it means marking the node as static with a unique key.
-   */
-  function markOnce (
-    tree,
-    index,
-    key
-  ) {
-    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-    return tree
+  function isInInactiveTree (vm) {
+    while (vm && (vm = vm.$parent)) {
+      if (vm._inactive) { return true }
+    }
+    return false
   }
 
-  function markStatic (
-    tree,
-    key,
-    isOnce
-  ) {
-    if (Array.isArray(tree)) {
-      for (var i = 0; i < tree.length; i++) {
-        if (tree[i] && typeof tree[i] !== 'string') {
-          markStaticNode(tree[i], (key + "_" + i), isOnce);
-        }
+  function activateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = false;
+      if (isInInactiveTree(vm)) {
+        return
       }
-    } else {
-      markStaticNode(tree, key, isOnce);
+    } else if (vm._directInactive) {
+      return
     }
-  }
-
-  function markStaticNode (node, key, isOnce) {
-    node.isStatic = true;
-    node.key = key;
-    node.isOnce = isOnce;
-  }
-
-  /*  */
-
-  function bindObjectListeners (data, value) {
-    if (value) {
-      if (!isPlainObject(value)) {
-        warn(
-          'v-on without argument expects an Object value',
-          this
-        );
-      } else {
-        var on = data.on = data.on ? extend({}, data.on) : {};
-        for (var key in value) {
-          var existing = on[key];
-          var ours = value[key];
-          on[key] = existing ? [].concat(existing, ours) : ours;
-        }
+    if (vm._inactive || vm._inactive === null) {
+      vm._inactive = false;
+      for (var i = 0; i < vm.$children.length; i++) {
+        activateChildComponent(vm.$children[i]);
       }
+      callHook(vm, 'activated');
     }
-    return data
   }
 
-  /*  */
-
-  function bindDynamicKeys (baseObj, values) {
-    for (var i = 0; i < values.length; i += 2) {
-      var key = values[i];
-      if (typeof key === 'string' && key) {
-        baseObj[values[i]] = values[i + 1];
-      } else if (key !== '' && key !== null) {
-        // null is a speical value for explicitly removing a binding
-        warn(
-          ("Invalid value for dynamic directive argument (expected string or null): " + key),
-          this
-        );
+  function deactivateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = true;
+      if (isInInactiveTree(vm)) {
+        return
       }
     }
-    return baseObj
+    if (!vm._inactive) {
+      vm._inactive = true;
+      for (var i = 0; i < vm.$children.length; i++) {
+        deactivateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'deactivated');
+    }
   }
 
-  // helper to dynamically append modifier runtime markers to event names.
-  // ensure only append when value is already string, otherwise it will be cast
-  // to string and cause the type check to miss.
-  function prependModifier (value, symbol) {
-    return typeof value === 'string' ? symbol + value : value
+  function callHook (vm, hook) {
+    // #7573 disable dep collection when invoking lifecycle hooks
+    pushTarget();
+    var handlers = vm.$options[hook];
+    var info = hook + " hook";
+    if (handlers) {
+      for (var i = 0, j = handlers.length; i < j; i++) {
+        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+      }
+    }
+    if (vm._hasHookEvent) {
+      vm.$emit('hook:' + hook);
+    }
+    popTarget();
   }
 
   /*  */
 
-  function installRenderHelpers (target) {
-    target._o = markOnce;
-    target._n = toNumber;
-    target._s = toString;
-    target._l = renderList;
-    target._t = renderSlot;
-    target._q = looseEqual;
-    target._i = looseIndexOf;
-    target._m = renderStatic;
-    target._f = resolveFilter;
-    target._k = checkKeyCodes;
-    target._b = bindObjectProps;
-    target._v = createTextVNode;
-    target._e = createEmptyVNode;
-    target._u = resolveScopedSlots;
-    target._g = bindObjectListeners;
-    target._d = bindDynamicKeys;
-    target._p = prependModifier;
-  }
+  var MAX_UPDATE_COUNT = 100;
 
-  /*  */
+  var queue = [];
+  var activatedChildren = [];
+  var has = {};
+  var circular = {};
+  var waiting = false;
+  var flushing = false;
+  var index = 0;
 
-  function FunctionalRenderContext (
-    data,
-    props,
-    children,
-    parent,
-    Ctor
-  ) {
-    var options = Ctor.options;
-    // ensure the createElement function in functional components
-    // gets a unique context - this is necessary for correct named slot check
-    var contextVm;
-    if (hasOwn(parent, '_uid')) {
-      contextVm = Object.create(parent);
-      // $flow-disable-line
-      contextVm._original = parent;
-    } else {
-      // the context vm passed in is a functional context as well.
-      // in this case we want to make sure we are able to get a hold to the
-      // real context instance.
-      contextVm = parent;
-      // $flow-disable-line
-      parent = parent._original;
+  /**
+   * Reset the scheduler's state.
+   */
+  function resetSchedulerState () {
+    index = queue.length = activatedChildren.length = 0;
+    has = {};
+    {
+      circular = {};
     }
-    var isCompiled = isTrue(options._compiled);
-    var needNormalization = !isCompiled;
-
-    this.data = data;
-    this.props = props;
-    this.children = children;
-    this.parent = parent;
-    this.listeners = data.on || emptyObject;
-    this.injections = resolveInject(options.inject, parent);
-    this.slots = function () { return resolveSlots(children, parent); };
+    waiting = flushing = false;
+  }
 
-    Object.defineProperty(this, 'scopedSlots', ({
-      enumerable: true,
-      get: function get () {
-        return normalizeScopedSlots(data.scopedSlots, this.slots())
-      }
-    }));
+  // Async edge case #6566 requires saving the timestamp when event listeners are
+  // attached. However, calling performance.now() has a perf overhead especially
+  // if the page has thousands of event listeners. Instead, we take a timestamp
+  // every time the scheduler flushes and use that for all event listeners
+  // attached during that flush.
+  var currentFlushTimestamp = 0;
 
-    // support for compiled functional template
-    if (isCompiled) {
-      // exposing $options for renderStatic()
-      this.$options = options;
-      // pre-resolve slots for renderSlot()
-      this.$slots = this.slots();
-      this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);
-    }
+  // Async edge case fix requires storing an event listener's attach timestamp.
+  var getNow = Date.now;
 
-    if (options._scopeId) {
-      this._c = function (a, b, c, d) {
-        var vnode = createElement(contextVm, a, b, c, d, needNormalization);
-        if (vnode && !Array.isArray(vnode)) {
-          vnode.fnScopeId = options._scopeId;
-          vnode.fnContext = parent;
-        }
-        return vnode
-      };
-    } else {
-      this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };
-    }
+  // Determine what event timestamp the browser is using. Annoyingly, the
+  // timestamp can either be hi-res (relative to page load) or low-res
+  // (relative to UNIX epoch), so in order to compare time we have to use the
+  // same timestamp type when saving the flush timestamp.
+  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+    // if the low-res timestamp which is bigger than the event timestamp
+    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listeners as well.
+    getNow = function () { return performance.now(); };
   }
 
-  installRenderHelpers(FunctionalRenderContext.prototype);
+  /**
+   * Flush both queues and run the watchers.
+   */
+  function flushSchedulerQueue () {
+    currentFlushTimestamp = getNow();
+    flushing = true;
+    var watcher, id;
 
-  function createFunctionalComponent (
-    Ctor,
-    propsData,
-    data,
-    contextVm,
-    children
-  ) {
-    var options = Ctor.options;
-    var props = {};
-    var propOptions = options.props;
-    if (isDef(propOptions)) {
-      for (var key in propOptions) {
-        props[key] = validateProp(key, propOptions, propsData || emptyObject);
+    // Sort queue before flush.
+    // This ensures that:
+    // 1. Components are updated from parent to child. (because parent is always
+    //    created before the child)
+    // 2. A component's user watchers are run before its render watcher (because
+    //    user watchers are created before the render watcher)
+    // 3. If a component is destroyed during a parent component's watcher run,
+    //    its watchers can be skipped.
+    queue.sort(function (a, b) { return a.id - b.id; });
+
+    // do not cache length because more watchers might be pushed
+    // as we run existing watchers
+    for (index = 0; index < queue.length; index++) {
+      watcher = queue[index];
+      if (watcher.before) {
+        watcher.before();
+      }
+      id = watcher.id;
+      has[id] = null;
+      watcher.run();
+      // in dev build, check and stop circular updates.
+      if (has[id] != null) {
+        circular[id] = (circular[id] || 0) + 1;
+        if (circular[id] > MAX_UPDATE_COUNT) {
+          warn(
+            'You may have an infinite update loop ' + (
+              watcher.user
+                ? ("in watcher with expression \"" + (watcher.expression) + "\"")
+                : "in a component render function."
+            ),
+            watcher.vm
+          );
+          break
+        }
       }
-    } else {
-      if (isDef(data.attrs)) { mergeProps(props, data.attrs); }
-      if (isDef(data.props)) { mergeProps(props, data.props); }
     }
 
-    var renderContext = new FunctionalRenderContext(
-      data,
-      props,
-      children,
-      contextVm,
-      Ctor
-    );
+    // keep copies of post queues before resetting state
+    var activatedQueue = activatedChildren.slice();
+    var updatedQueue = queue.slice();
 
-    var vnode = options.render.call(null, renderContext._c, renderContext);
+    resetSchedulerState();
 
-    if (vnode instanceof VNode) {
-      return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)
-    } else if (Array.isArray(vnode)) {
-      var vnodes = normalizeChildren(vnode) || [];
-      var res = new Array(vnodes.length);
-      for (var i = 0; i < vnodes.length; i++) {
-        res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);
-      }
-      return res
+    // call component updated and activated hooks
+    callActivatedHooks(activatedQueue);
+    callUpdatedHooks(updatedQueue);
+
+    // devtool hook
+    /* istanbul ignore if */
+    if (devtools && config.devtools) {
+      devtools.emit('flush');
     }
   }
 
-  function cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {
-    // #7817 clone node before setting fnContext, otherwise if the node is reused
-    // (e.g. it was from a cached normal slot) the fnContext causes named slots
-    // that should not be matched to match.
-    var clone = cloneVNode(vnode);
-    clone.fnContext = contextVm;
-    clone.fnOptions = options;
-    {
-      (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;
-    }
-    if (data.slot) {
-      (clone.data || (clone.data = {})).slot = data.slot;
+  function callUpdatedHooks (queue) {
+    var i = queue.length;
+    while (i--) {
+      var watcher = queue[i];
+      var vm = watcher.vm;
+      if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {
+        callHook(vm, 'updated');
+      }
     }
-    return clone
   }
 
-  function mergeProps (to, from) {
-    for (var key in from) {
-      to[camelize(key)] = from[key];
-    }
+  /**
+   * Queue a kept-alive component that was activated during patch.
+   * The queue will be processed after the entire tree has been patched.
+   */
+  function queueActivatedComponent (vm) {
+    // setting _inactive to false here so that a render function can
+    // rely on checking whether it's in an inactive tree (e.g. router-view)
+    vm._inactive = false;
+    activatedChildren.push(vm);
   }
 
-  /*  */
+  function callActivatedHooks (queue) {
+    for (var i = 0; i < queue.length; i++) {
+      queue[i]._inactive = true;
+      activateChildComponent(queue[i], true /* true */);
+    }
+  }
 
-  /*  */
+  /**
+   * Push a watcher into the watcher queue.
+   * Jobs with duplicate IDs will be skipped unless it's
+   * pushed when the queue is being flushed.
+   */
+  function queueWatcher (watcher) {
+    var id = watcher.id;
+    if (has[id] == null) {
+      has[id] = true;
+      if (!flushing) {
+        queue.push(watcher);
+      } else {
+        // if already flushing, splice the watcher based on its id
+        // if already past its id, it will be run next immediately.
+        var i = queue.length - 1;
+        while (i > index && queue[i].id > watcher.id) {
+          i--;
+        }
+        queue.splice(i + 1, 0, watcher);
+      }
+      // queue the flush
+      if (!waiting) {
+        waiting = true;
 
-  /*  */
+        if (!config.async) {
+          flushSchedulerQueue();
+          return
+        }
+        nextTick(flushSchedulerQueue);
+      }
+    }
+  }
 
   /*  */
 
-  // inline hooks to be invoked on component VNodes during patch
-  var componentVNodeHooks = {
-    init: function init (vnode, hydrating) {
-      if (
-        vnode.componentInstance &&
-        !vnode.componentInstance._isDestroyed &&
-        vnode.data.keepAlive
-      ) {
-        // kept-alive components, treat as a patch
-        var mountedNode = vnode; // work around flow
-        componentVNodeHooks.prepatch(mountedNode, mountedNode);
-      } else {
-        var child = vnode.componentInstance = createComponentInstanceForVnode(
-          vnode,
-          activeInstance
-        );
-        child.$mount(hydrating ? vnode.elm : undefined, hydrating);
-      }
-    },
 
-    prepatch: function prepatch (oldVnode, vnode) {
-      var options = vnode.componentOptions;
-      var child = vnode.componentInstance = oldVnode.componentInstance;
-      updateChildComponent(
-        child,
-        options.propsData, // updated props
-        options.listeners, // updated listeners
-        vnode, // new parent vnode
-        options.children // new children
-      );
-    },
 
-    insert: function insert (vnode) {
-      var context = vnode.context;
-      var componentInstance = vnode.componentInstance;
-      if (!componentInstance._isMounted) {
-        componentInstance._isMounted = true;
-        callHook(componentInstance, 'mounted');
-      }
-      if (vnode.data.keepAlive) {
-        if (context._isMounted) {
-          // vue-router#1212
-          // During updates, a kept-alive component's child components may
-          // change, so directly walking the tree here may call activated hooks
-          // on incorrect children. Instead we push them into a queue which will
-          // be processed after the whole patch process ended.
-          queueActivatedComponent(componentInstance);
-        } else {
-          activateChildComponent(componentInstance, true /* direct */);
-        }
-      }
-    },
+  var uid$2 = 0;
 
-    destroy: function destroy (vnode) {
-      var componentInstance = vnode.componentInstance;
-      if (!componentInstance._isDestroyed) {
-        if (!vnode.data.keepAlive) {
-          componentInstance.$destroy();
-        } else {
-          deactivateChildComponent(componentInstance, true /* direct */);
-        }
+  /**
+   * A watcher parses an expression, collects dependencies,
+   * and fires callback when the expression value changes.
+   * This is used for both the $watch() api and directives.
+   */
+  var Watcher = function Watcher (
+    vm,
+    expOrFn,
+    cb,
+    options,
+    isRenderWatcher
+  ) {
+    this.vm = vm;
+    if (isRenderWatcher) {
+      vm._watcher = this;
+    }
+    vm._watchers.push(this);
+    // options
+    if (options) {
+      this.deep = !!options.deep;
+      this.user = !!options.user;
+      this.lazy = !!options.lazy;
+      this.sync = !!options.sync;
+      this.before = options.before;
+    } else {
+      this.deep = this.user = this.lazy = this.sync = false;
+    }
+    this.cb = cb;
+    this.id = ++uid$2; // uid for batching
+    this.active = true;
+    this.dirty = this.lazy; // for lazy watchers
+    this.deps = [];
+    this.newDeps = [];
+    this.depIds = new _Set();
+    this.newDepIds = new _Set();
+    this.expression = expOrFn.toString();
+    // parse expression for getter
+    if (typeof expOrFn === 'function') {
+      this.getter = expOrFn;
+    } else {
+      this.getter = parsePath(expOrFn);
+      if (!this.getter) {
+        this.getter = noop;
+        warn(
+          "Failed watching path: \"" + expOrFn + "\" " +
+          'Watcher only accepts simple dot-delimited paths. ' +
+          'For full control, use a function instead.',
+          vm
+        );
       }
     }
+    this.value = this.lazy
+      ? undefined
+      : this.get();
   };
 
-  var hooksToMerge = Object.keys(componentVNodeHooks);
-
-  function createComponent (
-    Ctor,
-    data,
-    context,
-    children,
-    tag
-  ) {
-    if (isUndef(Ctor)) {
-      return
-    }
-
-    var baseCtor = context.$options._base;
-
-    // plain options object: turn it into a constructor
-    if (isObject(Ctor)) {
-      Ctor = baseCtor.extend(Ctor);
-    }
-
-    // if at this stage it's not a constructor or an async component factory,
-    // reject.
-    if (typeof Ctor !== 'function') {
-      {
-        warn(("Invalid Component definition: " + (String(Ctor))), context);
+  /**
+   * Evaluate the getter, and re-collect dependencies.
+   */
+  Watcher.prototype.get = function get () {
+    pushTarget(this);
+    var value;
+    var vm = this.vm;
+    try {
+      value = this.getter.call(vm, vm);
+    } catch (e) {
+      if (this.user) {
+        handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
+      } else {
+        throw e
       }
-      return
+    } finally {
+      // "touch" every property so they are all tracked as
+      // dependencies for deep watching
+      if (this.deep) {
+        traverse(value);
+      }
+      popTarget();
+      this.cleanupDeps();
     }
+    return value
+  };
 
-    // async component
-    var asyncFactory;
-    if (isUndef(Ctor.cid)) {
-      asyncFactory = Ctor;
-      Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
-      if (Ctor === undefined) {
-        // return a placeholder node for async component, which is rendered
-        // as a comment node but preserves all the raw information for the node.
-        // the information will be used for async server-rendering and hydration.
-        return createAsyncPlaceholder(
-          asyncFactory,
-          data,
-          context,
-          children,
-          tag
-        )
+  /**
+   * Add a dependency to this directive.
+   */
+  Watcher.prototype.addDep = function addDep (dep) {
+    var id = dep.id;
+    if (!this.newDepIds.has(id)) {
+      this.newDepIds.add(id);
+      this.newDeps.push(dep);
+      if (!this.depIds.has(id)) {
+        dep.addSub(this);
       }
     }
+  };
 
-    data = data || {};
-
-    // resolve constructor options in case global mixins are applied after
-    // component constructor creation
-    resolveConstructorOptions(Ctor);
-
-    // transform component v-model data into props & events
-    if (isDef(data.model)) {
-      transformModel(Ctor.options, data);
+  /**
+   * Clean up for dependency collection.
+   */
+  Watcher.prototype.cleanupDeps = function cleanupDeps () {
+    var i = this.deps.length;
+    while (i--) {
+      var dep = this.deps[i];
+      if (!this.newDepIds.has(dep.id)) {
+        dep.removeSub(this);
+      }
     }
+    var tmp = this.depIds;
+    this.depIds = this.newDepIds;
+    this.newDepIds = tmp;
+    this.newDepIds.clear();
+    tmp = this.deps;
+    this.deps = this.newDeps;
+    this.newDeps = tmp;
+    this.newDeps.length = 0;
+  };
 
-    // extract props
-    var propsData = extractPropsFromVNodeData(data, Ctor, tag);
-
-    // functional component
-    if (isTrue(Ctor.options.functional)) {
-      return createFunctionalComponent(Ctor, propsData, data, context, children)
+  /**
+   * Subscriber interface.
+   * Will be called when a dependency changes.
+   */
+  Watcher.prototype.update = function update () {
+    /* istanbul ignore else */
+    if (this.lazy) {
+      this.dirty = true;
+    } else if (this.sync) {
+      this.run();
+    } else {
+      queueWatcher(this);
     }
+  };
 
-    // extract listeners, since these needs to be treated as
-    // child component listeners instead of DOM listeners
-    var listeners = data.on;
-    // replace with listeners with .native modifier
-    // so it gets processed during parent component patch.
-    data.on = data.nativeOn;
-
-    if (isTrue(Ctor.options.abstract)) {
-      // abstract components do not keep anything
-      // other than props & listeners & slot
-
-      // work around flow
-      var slot = data.slot;
-      data = {};
-      if (slot) {
-        data.slot = slot;
+  /**
+   * Scheduler job interface.
+   * Will be called by the scheduler.
+   */
+  Watcher.prototype.run = function run () {
+    if (this.active) {
+      var value = this.get();
+      if (
+        value !== this.value ||
+        // Deep watchers and watchers on Object/Arrays should fire even
+        // when the value is the same, because the value may
+        // have mutated.
+        isObject(value) ||
+        this.deep
+      ) {
+        // set new value
+        var oldValue = this.value;
+        this.value = value;
+        if (this.user) {
+          try {
+            this.cb.call(this.vm, value, oldValue);
+          } catch (e) {
+            handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
+          }
+        } else {
+          this.cb.call(this.vm, value, oldValue);
+        }
       }
     }
+  };
 
-    // install component management hooks onto the placeholder node
-    installComponentHooks(data);
-
-    // return a placeholder vnode
-    var name = Ctor.options.name || tag;
-    var vnode = new VNode(
-      ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
-      data, undefined, undefined, undefined, context,
-      { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },
-      asyncFactory
-    );
-
-    return vnode
-  }
+  /**
+   * Evaluate the value of the watcher.
+   * This only gets called for lazy watchers.
+   */
+  Watcher.prototype.evaluate = function evaluate () {
+    this.value = this.get();
+    this.dirty = false;
+  };
 
-  function createComponentInstanceForVnode (
-    vnode, // we know it's MountedComponentVNode but flow doesn't
-    parent // activeInstance in lifecycle state
-  ) {
-    var options = {
-      _isComponent: true,
-      _parentVnode: vnode,
-      parent: parent
-    };
-    // check inline-template render functions
-    var inlineTemplate = vnode.data.inlineTemplate;
-    if (isDef(inlineTemplate)) {
-      options.render = inlineTemplate.render;
-      options.staticRenderFns = inlineTemplate.staticRenderFns;
+  /**
+   * Depend on all deps collected by this watcher.
+   */
+  Watcher.prototype.depend = function depend () {
+    var i = this.deps.length;
+    while (i--) {
+      this.deps[i].depend();
     }
-    return new vnode.componentOptions.Ctor(options)
-  }
+  };
 
-  function installComponentHooks (data) {
-    var hooks = data.hook || (data.hook = {});
-    for (var i = 0; i < hooksToMerge.length; i++) {
-      var key = hooksToMerge[i];
-      var existing = hooks[key];
-      var toMerge = componentVNodeHooks[key];
-      if (existing !== toMerge && !(existing && existing._merged)) {
-        hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;
+  /**
+   * Remove self from all dependencies' subscriber list.
+   */
+  Watcher.prototype.teardown = function teardown () {
+    if (this.active) {
+      // remove self from vm's watcher list
+      // this is a somewhat expensive operation so we skip it
+      // if the vm is being destroyed.
+      if (!this.vm._isBeingDestroyed) {
+        remove(this.vm._watchers, this);
+      }
+      var i = this.deps.length;
+      while (i--) {
+        this.deps[i].removeSub(this);
       }
+      this.active = false;
     }
-  }
+  };
+
+  /*  */
 
-  function mergeHook$1 (f1, f2) {
-    var merged = function (a, b) {
-      // flow complains about extra args which is why we use any
-      f1(a, b);
-      f2(a, b);
+  var sharedPropertyDefinition = {
+    enumerable: true,
+    configurable: true,
+    get: noop,
+    set: noop
+  };
+
+  function proxy (target, sourceKey, key) {
+    sharedPropertyDefinition.get = function proxyGetter () {
+      return this[sourceKey][key]
     };
-    merged._merged = true;
-    return merged
+    sharedPropertyDefinition.set = function proxySetter (val) {
+      this[sourceKey][key] = val;
+    };
+    Object.defineProperty(target, key, sharedPropertyDefinition);
   }
 
-  // transform component v-model info (value and callback) into
-  // prop and event handler respectively.
-  function transformModel (options, data) {
-    var prop = (options.model && options.model.prop) || 'value';
-    var event = (options.model && options.model.event) || 'input'
-    ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;
-    var on = data.on || (data.on = {});
-    var existing = on[event];
-    var callback = data.model.callback;
-    if (isDef(existing)) {
-      if (
-        Array.isArray(existing)
-          ? existing.indexOf(callback) === -1
-          : existing !== callback
-      ) {
-        on[event] = [callback].concat(existing);
-      }
+  function initState (vm) {
+    vm._watchers = [];
+    var opts = vm.$options;
+    if (opts.props) { initProps(vm, opts.props); }
+    if (opts.methods) { initMethods(vm, opts.methods); }
+    if (opts.data) {
+      initData(vm);
     } else {
-      on[event] = callback;
+      observe(vm._data = {}, true /* asRootData */);
+    }
+    if (opts.computed) { initComputed(vm, opts.computed); }
+    if (opts.watch && opts.watch !== nativeWatch) {
+      initWatch(vm, opts.watch);
     }
   }
 
-  /*  */
-
-  var SIMPLE_NORMALIZE = 1;
-  var ALWAYS_NORMALIZE = 2;
-
-  // wrapper function for providing a more flexible interface
-  // without getting yelled at by flow
-  function createElement (
-    context,
-    tag,
-    data,
-    children,
-    normalizationType,
-    alwaysNormalize
-  ) {
-    if (Array.isArray(data) || isPrimitive(data)) {
-      normalizationType = children;
-      children = data;
-      data = undefined;
-    }
-    if (isTrue(alwaysNormalize)) {
-      normalizationType = ALWAYS_NORMALIZE;
+  function initProps (vm, propsOptions) {
+    var propsData = vm.$options.propsData || {};
+    var props = vm._props = {};
+    // cache prop keys so that future props updates can iterate using Array
+    // instead of dynamic object key enumeration.
+    var keys = vm.$options._propKeys = [];
+    var isRoot = !vm.$parent;
+    // root instance props should be converted
+    if (!isRoot) {
+      toggleObserving(false);
     }
-    return _createElement(context, tag, data, children, normalizationType)
+    var loop = function ( key ) {
+      keys.push(key);
+      var value = validateProp(key, propsOptions, propsData, vm);
+      /* istanbul ignore else */
+      {
+        var hyphenatedKey = hyphenate(key);
+        if (isReservedAttribute(hyphenatedKey) ||
+            config.isReservedAttr(hyphenatedKey)) {
+          warn(
+            ("\"" + hyphenatedKey + "\" is a reserved attribute and cannot be used as component prop."),
+            vm
+          );
+        }
+        defineReactive$$1(props, key, value, function () {
+          if (!isRoot && !isUpdatingChildComponent) {
+            warn(
+              "Avoid mutating a prop directly since the value will be " +
+              "overwritten whenever the parent component re-renders. " +
+              "Instead, use a data or computed property based on the prop's " +
+              "value. Prop being mutated: \"" + key + "\"",
+              vm
+            );
+          }
+        });
+      }
+      // static props are already proxied on the component's prototype
+      // during Vue.extend(). We only need to proxy props defined at
+      // instantiation here.
+      if (!(key in vm)) {
+        proxy(vm, "_props", key);
+      }
+    };
+
+    for (var key in propsOptions) loop( key );
+    toggleObserving(true);
   }
 
-  function _createElement (
-    context,
-    tag,
-    data,
-    children,
-    normalizationType
-  ) {
-    if (isDef(data) && isDef((data).__ob__)) {
+  function initData (vm) {
+    var data = vm.$options.data;
+    data = vm._data = typeof data === 'function'
+      ? getData(data, vm)
+      : data || {};
+    if (!isPlainObject(data)) {
+      data = {};
       warn(
-        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-        'Always create fresh vnode data objects in each render!',
-        context
+        'data functions should return an object:\n' +
+        'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
+        vm
       );
-      return createEmptyVNode()
-    }
-    // object syntax in v-bind
-    if (isDef(data) && isDef(data.is)) {
-      tag = data.is;
-    }
-    if (!tag) {
-      // in case of component :is set to falsy value
-      return createEmptyVNode()
     }
-    // warn against non-primitive key
-    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-    ) {
+    // proxy data on instance
+    var keys = Object.keys(data);
+    var props = vm.$options.props;
+    var methods = vm.$options.methods;
+    var i = keys.length;
+    while (i--) {
+      var key = keys[i];
       {
+        if (methods && hasOwn(methods, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a data property."),
+            vm
+          );
+        }
+      }
+      if (props && hasOwn(props, key)) {
         warn(
-          'Avoid using non-primitive value as key, ' +
-          'use string/number value instead.',
-          context
+          "The data property \"" + key + "\" is already declared as a prop. " +
+          "Use prop default value instead.",
+          vm
         );
+      } else if (!isReserved(key)) {
+        proxy(vm, "_data", key);
       }
     }
-    // support single function children as default scoped slot
-    if (Array.isArray(children) &&
-      typeof children[0] === 'function'
-    ) {
-      data = data || {};
-      data.scopedSlots = { default: children[0] };
-      children.length = 0;
-    }
-    if (normalizationType === ALWAYS_NORMALIZE) {
-      children = normalizeChildren(children);
-    } else if (normalizationType === SIMPLE_NORMALIZE) {
-      children = simpleNormalizeChildren(children);
+    // observe data
+    observe(data, true /* asRootData */);
+  }
+
+  function getData (data, vm) {
+    // #7573 disable dep collection when invoking data getters
+    pushTarget();
+    try {
+      return data.call(vm, vm)
+    } catch (e) {
+      handleError(e, vm, "data()");
+      return {}
+    } finally {
+      popTarget();
     }
-    var vnode, ns;
-    if (typeof tag === 'string') {
-      var Ctor;
-      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-      if (config.isReservedTag(tag)) {
-        // platform built-in elements
-        vnode = new VNode(
-          config.parsePlatformTagName(tag), data, children,
-          undefined, undefined, context
+  }
+
+  var computedWatcherOptions = { lazy: true };
+
+  function initComputed (vm, computed) {
+    // $flow-disable-line
+    var watchers = vm._computedWatchers = Object.create(null);
+    // computed properties are just getters during SSR
+    var isSSR = isServerRendering();
+
+    for (var key in computed) {
+      var userDef = computed[key];
+      var getter = typeof userDef === 'function' ? userDef : userDef.get;
+      if (getter == null) {
+        warn(
+          ("Getter is missing for computed property \"" + key + "\"."),
+          vm
         );
-      } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-        // component
-        vnode = createComponent(Ctor, data, context, children, tag);
-      } else {
-        // unknown or unlisted namespaced elements
-        // check at runtime because it may get assigned a namespace when its
-        // parent normalizes children
-        vnode = new VNode(
-          tag, data, children,
-          undefined, undefined, context
+      }
+
+      if (!isSSR) {
+        // create internal watcher for the computed property.
+        watchers[key] = new Watcher(
+          vm,
+          getter || noop,
+          noop,
+          computedWatcherOptions
         );
       }
-    } else {
-      // direct component options / constructor
-      vnode = createComponent(tag, data, context, children);
+
+      // component-defined computed properties are already defined on the
+      // component prototype. We only need to define computed properties defined
+      // at instantiation here.
+      if (!(key in vm)) {
+        defineComputed(vm, key, userDef);
+      } else {
+        if (key in vm.$data) {
+          warn(("The computed property \"" + key + "\" is already defined in data."), vm);
+        } else if (vm.$options.props && key in vm.$options.props) {
+          warn(("The computed property \"" + key + "\" is already defined as a prop."), vm);
+        }
+      }
     }
-    if (Array.isArray(vnode)) {
-      return vnode
-    } else if (isDef(vnode)) {
-      if (isDef(ns)) { applyNS(vnode, ns); }
-      if (isDef(data)) { registerDeepBindings(data); }
-      return vnode
+  }
+
+  function defineComputed (
+    target,
+    key,
+    userDef
+  ) {
+    var shouldCache = !isServerRendering();
+    if (typeof userDef === 'function') {
+      sharedPropertyDefinition.get = shouldCache
+        ? createComputedGetter(key)
+        : createGetterInvoker(userDef);
+      sharedPropertyDefinition.set = noop;
     } else {
-      return createEmptyVNode()
+      sharedPropertyDefinition.get = userDef.get
+        ? shouldCache && userDef.cache !== false
+          ? createComputedGetter(key)
+          : createGetterInvoker(userDef.get)
+        : noop;
+      sharedPropertyDefinition.set = userDef.set || noop;
     }
+    if (sharedPropertyDefinition.set === noop) {
+      sharedPropertyDefinition.set = function () {
+        warn(
+          ("Computed property \"" + key + "\" was assigned to but it has no setter."),
+          this
+        );
+      };
+    }
+    Object.defineProperty(target, key, sharedPropertyDefinition);
   }
 
-  function applyNS (vnode, ns, force) {
-    vnode.ns = ns;
-    if (vnode.tag === 'foreignObject') {
-      // use default namespace inside foreignObject
-      ns = undefined;
-      force = true;
-    }
-    if (isDef(vnode.children)) {
-      for (var i = 0, l = vnode.children.length; i < l; i++) {
-        var child = vnode.children[i];
-        if (isDef(child.tag) && (
-          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-          applyNS(child, ns, force);
+  function createComputedGetter (key) {
+    return function computedGetter () {
+      var watcher = this._computedWatchers && this._computedWatchers[key];
+      if (watcher) {
+        if (watcher.dirty) {
+          watcher.evaluate();
         }
+        if (Dep.target) {
+          watcher.depend();
+        }
+        return watcher.value
       }
     }
   }
 
-  // ref #5318
-  // necessary to ensure parent re-render when deep bindings like :style and
-  // :class are used on slot nodes
-  function registerDeepBindings (data) {
-    if (isObject(data.style)) {
-      traverse(data.style);
-    }
-    if (isObject(data.class)) {
-      traverse(data.class);
+  function createGetterInvoker(fn) {
+    return function computedGetter () {
+      return fn.call(this, this)
     }
   }
 
-  /*  */
-
-  function initRender (vm) {
-    vm._vnode = null; // the root of the child tree
-    vm._staticTrees = null; // v-once cached trees
-    var options = vm.$options;
-    var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree
-    var renderContext = parentVnode && parentVnode.context;
-    vm.$slots = resolveSlots(options._renderChildren, renderContext);
-    vm.$scopedSlots = emptyObject;
-    // bind the createElement fn to this instance
-    // so that we get proper render context inside it.
-    // args order: tag, data, children, normalizationType, alwaysNormalize
-    // internal version is used by render functions compiled from templates
-    vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
-    // normalization is always applied for the public version, used in
-    // user-written render functions.
-    vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
+  function initMethods (vm, methods) {
+    var props = vm.$options.props;
+    for (var key in methods) {
+      {
+        if (typeof methods[key] !== 'function') {
+          warn(
+            "Method \"" + key + "\" has type \"" + (typeof methods[key]) + "\" in the component definition. " +
+            "Did you reference the function correctly?",
+            vm
+          );
+        }
+        if (props && hasOwn(props, key)) {
+          warn(
+            ("Method \"" + key + "\" has already been defined as a prop."),
+            vm
+          );
+        }
+        if ((key in vm) && isReserved(key)) {
+          warn(
+            "Method \"" + key + "\" conflicts with an existing Vue instance method. " +
+            "Avoid defining component methods that start with _ or $."
+          );
+        }
+      }
+      vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);
+    }
+  }
 
-    // $attrs & $listeners are exposed for easier HOC creation.
-    // they need to be reactive so that HOCs using them are always updated
-    var parentData = parentVnode && parentVnode.data;
+  function initWatch (vm, watch) {
+    for (var key in watch) {
+      var handler = watch[key];
+      if (Array.isArray(handler)) {
+        for (var i = 0; i < handler.length; i++) {
+          createWatcher(vm, key, handler[i]);
+        }
+      } else {
+        createWatcher(vm, key, handler);
+      }
+    }
+  }
 
-    /* istanbul ignore else */
-    {
-      defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {
-        !isUpdatingChildComponent && warn("$attrs is readonly.", vm);
-      }, true);
-      defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {
-        !isUpdatingChildComponent && warn("$listeners is readonly.", vm);
-      }, true);
+  function createWatcher (
+    vm,
+    expOrFn,
+    handler,
+    options
+  ) {
+    if (isPlainObject(handler)) {
+      options = handler;
+      handler = handler.handler;
+    }
+    if (typeof handler === 'string') {
+      handler = vm[handler];
     }
+    return vm.$watch(expOrFn, handler, options)
   }
 
-  function renderMixin (Vue) {
-    // install runtime convenience helpers
-    installRenderHelpers(Vue.prototype);
+  function stateMixin (Vue) {
+    // flow somehow has problems with directly declared definition object
+    // when using Object.defineProperty, so we have to procedurally build up
+    // the object here.
+    var dataDef = {};
+    dataDef.get = function () { return this._data };
+    var propsDef = {};
+    propsDef.get = function () { return this._props };
+    {
+      dataDef.set = function () {
+        warn(
+          'Avoid replacing instance root $data. ' +
+          'Use nested data properties instead.',
+          this
+        );
+      };
+      propsDef.set = function () {
+        warn("$props is readonly.", this);
+      };
+    }
+    Object.defineProperty(Vue.prototype, '$data', dataDef);
+    Object.defineProperty(Vue.prototype, '$props', propsDef);
 
-    Vue.prototype.$nextTick = function (fn) {
-      return nextTick(fn, this)
-    };
+    Vue.prototype.$set = set;
+    Vue.prototype.$delete = del;
 
-    Vue.prototype._render = function () {
+    Vue.prototype.$watch = function (
+      expOrFn,
+      cb,
+      options
+    ) {
       var vm = this;
-      var ref = vm.$options;
-      var render = ref.render;
-      var _parentVnode = ref._parentVnode;
-
-      if (_parentVnode) {
-        vm.$scopedSlots = normalizeScopedSlots(
-          _parentVnode.data.scopedSlots,
-          vm.$slots
-        );
+      if (isPlainObject(cb)) {
+        return createWatcher(vm, expOrFn, cb, options)
       }
-
-      // set parent vnode. this allows render functions to have access
-      // to the data on the placeholder node.
-      vm.$vnode = _parentVnode;
-      // render self
-      var vnode;
-      try {
-        vnode = render.call(vm._renderProxy, vm.$createElement);
-      } catch (e) {
-        handleError(e, vm, "render");
-        // return error render result,
-        // or previous vnode to prevent render error causing blank component
-        /* istanbul ignore else */
-        if (vm.$options.renderError) {
-          try {
-            vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);
-          } catch (e) {
-            handleError(e, vm, "renderError");
-            vnode = vm._vnode;
-          }
-        } else {
-          vnode = vm._vnode;
+      options = options || {};
+      options.user = true;
+      var watcher = new Watcher(vm, expOrFn, cb, options);
+      if (options.immediate) {
+        try {
+          cb.call(vm, watcher.value);
+        } catch (error) {
+          handleError(error, vm, ("callback for immediate watcher \"" + (watcher.expression) + "\""));
         }
       }
-      // if the returned array contains only a single node, allow it
-      if (Array.isArray(vnode) && vnode.length === 1) {
-        vnode = vnode[0];
-      }
-      // return empty vnode in case the render function errored out
-      if (!(vnode instanceof VNode)) {
-        if (Array.isArray(vnode)) {
-          warn(
-            'Multiple root nodes returned from render function. Render function ' +
-            'should return a single root node.',
-            vm
-          );
-        }
-        vnode = createEmptyVNode();
+      return function unwatchFn () {
+        watcher.teardown();
       }
-      // set parent
-      vnode.parent = _parentVnode;
-      return vnode
     };
   }
 
@@ -5323,7 +5326,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.2';
+  Vue.version = '2.6.3';
 
   /*  */
 
@@ -6748,6 +6751,11 @@
     }
   }
 
+  // #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp
+  // implementation and does not fire microtasks in between event propagation, so
+  // safe to exclude.
+  var useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);
+
   function add$1 (
     name,
     handler,
@@ -6760,11 +6768,16 @@
     // the solution is simple: we save the timestamp when a handler is attached,
     // and the handler would only fire if the event passed to it was fired
     // AFTER it was attached.
-    if (isUsingMicroTask) {
+    if (useMicrotaskFix) {
       var attachedTimestamp = currentFlushTimestamp;
       var original = handler;
       handler = original._wrapper = function (e) {
-        if (e.timeStamp >= attachedTimestamp) {
+        if (
+          e.timeStamp >= attachedTimestamp ||
+          // #9448 bail if event is fired in another document in a multi-page
+          // electron/nw.js app
+          e.target.ownerDocument !== document
+        ) {
           return original.apply(this, arguments)
         }
       };
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 9f3ae156f1c..01dc65ae4fc 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.2
+ * Vue.js v2.6.3
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return 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n.listeners=e,n}(t.elm,o),n(r=t.componentInstance)&&n(r=r._vnode)&&n(r.data)&&w(r,e),r=0;r<s.remove.length;++r)s.remove[r](t,e);n(r=t.data.hook)&&n(r=r.remove)?r(t,e):e()}else l(t.elm)}function A(t,e,r,o){for(var i=r;i<o;i++){var a=e[i];if(n(a)&&Qn(t,a))return i}}function $(t,o,i,a,c,l){if(t!==o){n(o.elm)&&n(a)&&(o=a[c]=vt(o));var p=o.elm=t.elm;if(r(t.isAsyncPlaceholder))n(o.asyncFactory.resolved)?k(t.elm,o,i):o.isAsyncPlaceholder=!0;else if(r(o.isStatic)&&r(t.isStatic)&&o.key===t.key&&(r(o.isCloned)||r(o.isOnce)))o.componentInstance=t.componentInstance;else{var d,v=o.data;n(v)&&n(d=v.hook)&&n(d=d.prepatch)&&d(t,o);var h=t.children,y=o.children;if(n(v)&&m(o)){for(d=0;d<s.update.length;++d)s.update[d](t,o);n(d=v.hook)&&n(d=d.update)&&d(t,o)}e(o.text)?n(h)&&n(y)?h!==y&&function(t,r,o,i,a){for(var s,c,l,p=0,d=0,v=r.length-1,h=r[0],m=r[v],y=o.length-1,g=o[0],b=o[y],w=!a;p<=v&&d<=y;)e(h)?h=r[++p]:e(m)?m=r[--v]:Qn(h,g)?($(h,g,i,o,d),h=r[++p],g=o[++d]):Qn(m,b)?($(m,b,i,o,y),m=r[--v],b=o[--y]):Qn(h,b)?($(h,b,i,o,y),w&&u.insertBefore(t,h.elm,u.nextSibling(m.elm)),h=r[++p],b=o[--y]):Qn(m,g)?($(m,g,i,o,d),w&&u.insertBefore(t,m.elm,h.elm),m=r[--v],g=o[++d]):(e(s)&&(s=Yn(r,p,v)),e(c=n(g.key)?s[g.key]:A(g,r,p,v))?f(g,i,t,h.elm,!1,o,d):Qn(l=r[c],g)?($(l,g,i,o,d),r[c]=void 0,w&&u.insertBefore(t,l.elm,h.elm)):f(g,i,t,h.elm,!1,o,d),g=o[++d]);p>v?_(t,e(o[y+1])?null:o[y+1].elm,o,d,y,i):d>y&&C(0,r,p,v)}(p,h,y,i,l):n(y)?(n(t.text)&&u.setTextContent(p,""),_(p,null,y,0,y.length-1,i)):n(h)?C(0,h,0,h.length-1):n(t.text)&&u.setTextContent(p,""):t.text!==o.text&&u.setTextContent(p,o.text),n(v)&&n(d=v.hook)&&n(d=d.postpatch)&&d(t,o)}}}function x(t,e,o){if(r(o)&&n(t.parent))t.parent.data.pendingInsert=e;else for(var i=0;i<e.length;++i)e[i].data.hook.insert(e[i])}var O=p("attrs,class,staticClass,staticStyle,key");function k(t,e,o,i){var a,s=e.tag,c=e.data,u=e.children;if(i=i||c&&c.pre,e.elm=t,r(e.isComment)&&n(e.asyncFactory))return e.isAsyncPlaceholder=!0,!0;if(n(c)&&(n(a=c.hook)&&n(a=a.init)&&a(e,!0),n(a=e.componentInstance)))return d(e,o),!0;if(n(s)){if(n(u))if(t.hasChildNodes())if(n(a=c)&&n(a=a.domProps)&&n(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var l=!0,f=t.firstChild,p=0;p<u.length;p++){if(!f||!k(f,u[p],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Qt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,p=[];if(e(t))l=!0,f(o,p);else{var d=n(t.nodeType);if(!d&&Qn(t,o))$(t,o,p,null,null,a);else{if(d){if(1===t.nodeType&&t.hasAttribute(D)&&(t.removeAttribute(D),i=!0),r(i)&&k(t,o,p))return x(o,p,!0),t;c=t,t=new lt(u.tagName(c).toLowerCase(),{},[],void 0,c)}var v=t.elm,h=u.parentNode(v);if(f(o,p,v._leaveCb?null:h,u.nextSibling(v)),n(o.parent))for(var y=o.parent,g=m(o);y;){for(var _=0;_<s.destroy.length;++_)s.destroy[_](y);if(y.elm=o.elm,g){for(var w=0;w<s.create.length;++w)s.create[w](Zn,y);var A=y.data.hook.insert;if(A.merged)for(var O=1;O<A.fns.length;O++)A.fns[O]()}else Gn(y);y=y.parent}n(h)?C(0,[t],0,0):n(t.tag)&&b(t)}}return x(o,p,l),o.elm}n(t)&&b(t)}}({nodeOps:Kn,modules:[lr,dr,wr,xr,Pr,H?{create:co,activate:co,remove:function(t,e){!0!==t.data.show?io(t,e):e()}}:{}].concat(ar)});q&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&go(t,"input")});var lo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){lo.componentUpdated(t,e,n)}):fo(t,e,n.context),t._vOptions=[].map.call(t.options,ho)):("textarea"===n.tag||qn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",mo),t.addEventListener("compositionend",yo),t.addEventListener("change",yo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){fo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,ho);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return vo(t,o)}):e.value!==e.oldValue&&vo(e.value,o))&&go(t,"change")}}};function fo(t,e,n){po(t,e,n),(W||K)&&setTimeout(function(){po(t,e,n)},0)}function po(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,ho(a))>-1,a.selected!==i&&(a.selected=i);else if(j(ho(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function vo(t,e){return e.every(function(e){return!j(e,t)})}function ho(t){return"_value"in t?t._value:t.value}function mo(t){t.target.composing=!0}function yo(t){t.target.composing&&(t.target.composing=!1,go(t.target,"input"))}function go(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function _o(t){return!t.componentInstance||t.data&&t.data.transition?t:_o(t.componentInstance._vnode)}var bo={model:lo,show:{bind:function(t,e,n){var r=e.value,o=(n=_o(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,oo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=_o(n)).data&&n.data.transition?(n.data.show=!0,r?oo(n,function(){t.style.display=t.__vOriginalDisplay}):io(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Co={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function wo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?wo(He(e.children)):t}function Ao(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function $o(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var xo=function(t){return t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return $o(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Ao(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),$o(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function Eo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function jo(t){t.data.newPos=t.elm.getBoundingClientRect()}function Io(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var To={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Ao(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Eo),t.forEach(jo),t.forEach(Io),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return _n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=zn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return Bn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(zn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,To),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){P.devtools&&tt&&tt.emit("init",_n)},0),_n});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 631fa00807f..abf4cb483df 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -694,6 +694,7 @@
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
   var isPhantomJS = UA && /phantomjs/.test(UA);
+  var isFF = UA && UA.match(/firefox\/(\d+)/);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -3814,6 +3815,8 @@
 
   var decodeHTMLCached = cached(he.decode);
 
+  var emptySlotScopeToken = "_empty_";
+
   // configurable state
   var warn$1;
   var delimiters;
@@ -4426,7 +4429,7 @@
           var dynamic = ref.dynamic;
           el.slotTarget = name;
           el.slotTargetDynamic = dynamic;
-          el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+          el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
         }
       } else {
         // v-slot on component, denotes default slot
@@ -4461,8 +4464,13 @@
           var slotContainer = slots[name$1] = createASTElement('template', [], el);
           slotContainer.slotTarget = name$1;
           slotContainer.slotTargetDynamic = dynamic$1;
-          slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
-          slotContainer.slotScope = slotBinding$1.value || "_";
+          slotContainer.children = el.children.filter(function (c) {
+            if (!c.slotScope) {
+              c.parent = slotContainer;
+              return true
+            }
+          });
+          slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
           // remove children as they are returned from scopedSlots now
           el.children = [];
           // mark el non-plain so data gets generated
@@ -5430,7 +5438,7 @@
     }
     // scoped slots
     if (el.scopedSlots) {
-      data += (genScopedSlots(el.scopedSlots, state)) + ",";
+      data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
     }
     // component v-model
     if (el.model) {
@@ -5501,16 +5509,34 @@
   }
 
   function genScopedSlots (
+    el,
     slots,
     state
   ) {
-    var hasDynamicKeys = Object.keys(slots).some(function (key) {
+    // by default scoped slots are considered "stable", this allows child
+    // components with only scoped slots to skip forced updates from parent.
+    // but in some cases we have to bail-out of this optimization
+    // for example if the slot contains dynamic names, has v-if or v-for on them...
+    var needsForceUpdate = Object.keys(slots).some(function (key) {
       var slot = slots[key];
       return slot.slotTargetDynamic || slot.if || slot.for
     });
+    // OR when it is inside another scoped slot (the reactivity is disconnected)
+    // #9438
+    if (!needsForceUpdate) {
+      var parent = el.parent;
+      while (parent) {
+        if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+          needsForceUpdate = true;
+          break
+        }
+        parent = parent.parent;
+      }
+    }
+
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
         return genScopedSlot(slots[key], state)
-      }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+      }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
@@ -5524,7 +5550,10 @@
     if (el.for && !el.forProcessed) {
       return genFor(el, state, genScopedSlot)
     }
-    var fn = "function(" + (String(el.slotScope)) + "){" +
+    var slotScope = el.slotScope === emptySlotScopeToken
+      ? ""
+      : String(el.slotScope);
+    var fn = "function(" + slotScope + "){" +
       "return " + (el.tag === 'template'
         ? el.if && isLegacySyntax
           ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
@@ -5617,7 +5646,14 @@
     var slotName = el.slotName || '"default"';
     var children = genChildren(el, state);
     var res = "_t(" + slotName + (children ? ("," + children) : '');
-    var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+    var attrs = el.attrs || el.dynamicAttrs
+      ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
+          // slot props are camelized
+          name: camelize(attr.name),
+          value: attr.value,
+          dynamic: attr.dynamic
+        }); }))
+      : null;
     var bind$$1 = el.attrsMap['v-bind'];
     if ((attrs || bind$$1) && !children) {
       res += ",null";
@@ -6945,900 +6981,896 @@
 
   /*  */
 
-  function ensureCtor (comp, base) {
-    if (
-      comp.__esModule ||
-      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-    ) {
-      comp = comp.default;
-    }
-    return isObject(comp)
-      ? base.extend(comp)
-      : comp
-  }
+  var SIMPLE_NORMALIZE = 1;
+  var ALWAYS_NORMALIZE = 2;
 
-  function createAsyncPlaceholder (
-    factory,
-    data,
+  // wrapper function for providing a more flexible interface
+  // without getting yelled at by flow
+  function createElement (
     context,
+    tag,
+    data,
     children,
-    tag
+    normalizationType,
+    alwaysNormalize
   ) {
-    var node = createEmptyVNode();
-    node.asyncFactory = factory;
-    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-    return node
+    if (Array.isArray(data) || isPrimitive(data)) {
+      normalizationType = children;
+      children = data;
+      data = undefined;
+    }
+    if (isTrue(alwaysNormalize)) {
+      normalizationType = ALWAYS_NORMALIZE;
+    }
+    return _createElement(context, tag, data, children, normalizationType)
   }
 
-  function resolveAsyncComponent (
-    factory,
-    baseCtor,
-    context
+  function _createElement (
+    context,
+    tag,
+    data,
+    children,
+    normalizationType
   ) {
-    if (isTrue(factory.error) && isDef(factory.errorComp)) {
-      return factory.errorComp
+    if (isDef(data) && isDef((data).__ob__)) {
+      warn(
+        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+        'Always create fresh vnode data objects in each render!',
+        context
+      );
+      return createEmptyVNode()
     }
-
-    if (isDef(factory.resolved)) {
-      return factory.resolved
+    // object syntax in v-bind
+    if (isDef(data) && isDef(data.is)) {
+      tag = data.is;
     }
-
-    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-      return factory.loadingComp
+    if (!tag) {
+      // in case of component :is set to falsy value
+      return createEmptyVNode()
     }
-
-    if (isDef(factory.contexts)) {
-      // already pending
-      factory.contexts.push(context);
-    } else {
-      var contexts = factory.contexts = [context];
-      var sync = true;
-
-      var forceRender = function (renderCompleted) {
-        for (var i = 0, l = contexts.length; i < l; i++) {
-          contexts[i].$forceUpdate();
-        }
-
-        if (renderCompleted) {
-          contexts.length = 0;
-        }
-      };
-
-      var resolve = once(function (res) {
-        // cache resolved
-        factory.resolved = ensureCtor(res, baseCtor);
-        // invoke callbacks only if this is not a synchronous resolve
-        // (async resolves are shimmed as synchronous during SSR)
-        if (!sync) {
-          forceRender(true);
-        } else {
-          contexts.length = 0;
-        }
-      });
-
-      var reject = once(function (reason) {
+    // warn against non-primitive key
+    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+    ) {
+      {
         warn(
-          "Failed to resolve async component: " + (String(factory)) +
-          (reason ? ("\nReason: " + reason) : '')
+          'Avoid using non-primitive value as key, ' +
+          'use string/number value instead.',
+          context
         );
-        if (isDef(factory.errorComp)) {
-          factory.error = true;
-          forceRender(true);
-        }
-      });
-
-      var res = factory(resolve, reject);
-
-      if (isObject(res)) {
-        if (isPromise(res)) {
-          // () => Promise
-          if (isUndef(factory.resolved)) {
-            res.then(resolve, reject);
-          }
-        } else if (isPromise(res.component)) {
-          res.component.then(resolve, reject);
-
-          if (isDef(res.error)) {
-            factory.errorComp = ensureCtor(res.error, baseCtor);
-          }
-
-          if (isDef(res.loading)) {
-            factory.loadingComp = ensureCtor(res.loading, baseCtor);
-            if (res.delay === 0) {
-              factory.loading = true;
-            } else {
-              setTimeout(function () {
-                if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                  factory.loading = true;
-                  forceRender(false);
-                }
-              }, res.delay || 200);
-            }
-          }
-
-          if (isDef(res.timeout)) {
-            setTimeout(function () {
-              if (isUndef(factory.resolved)) {
-                reject(
-                  "timeout (" + (res.timeout) + "ms)"
-                );
-              }
-            }, res.timeout);
-          }
-        }
       }
-
-      sync = false;
-      // return in case resolved synchronously
-      return factory.loading
-        ? factory.loadingComp
-        : factory.resolved
+    }
+    // support single function children as default scoped slot
+    if (Array.isArray(children) &&
+      typeof children[0] === 'function'
+    ) {
+      data = data || {};
+      data.scopedSlots = { default: children[0] };
+      children.length = 0;
+    }
+    if (normalizationType === ALWAYS_NORMALIZE) {
+      children = normalizeChildren(children);
+    } else if (normalizationType === SIMPLE_NORMALIZE) {
+      children = simpleNormalizeChildren(children);
+    }
+    var vnode, ns;
+    if (typeof tag === 'string') {
+      var Ctor;
+      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+      if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+        // component
+        vnode = createComponent(Ctor, data, context, children, tag);
+      } else {
+        // unknown or unlisted namespaced elements
+        // check at runtime because it may get assigned a namespace when its
+        // parent normalizes children
+        vnode = new VNode(
+          tag, data, children,
+          undefined, undefined, context
+        );
+      }
+    } else {
+      // direct component options / constructor
+      vnode = createComponent(tag, data, context, children);
+    }
+    if (Array.isArray(vnode)) {
+      return vnode
+    } else if (isDef(vnode)) {
+      if (isDef(ns)) { applyNS(vnode, ns); }
+      if (isDef(data)) { registerDeepBindings(data); }
+      return vnode
+    } else {
+      return createEmptyVNode()
     }
   }
 
-  /*  */
-
-  /*  */
-
-  /*  */
-
-  /*  */
-
-  var target;
-
-  function add (event, fn) {
-    target.$on(event, fn);
-  }
-
-  function remove$1 (event, fn) {
-    target.$off(event, fn);
+  function applyNS (vnode, ns, force) {
+    vnode.ns = ns;
+    if (vnode.tag === 'foreignObject') {
+      // use default namespace inside foreignObject
+      ns = undefined;
+      force = true;
+    }
+    if (isDef(vnode.children)) {
+      for (var i = 0, l = vnode.children.length; i < l; i++) {
+        var child = vnode.children[i];
+        if (isDef(child.tag) && (
+          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+          applyNS(child, ns, force);
+        }
+      }
+    }
   }
 
-  function createOnceHandler (event, fn) {
-    var _target = target;
-    return function onceHandler () {
-      var res = fn.apply(null, arguments);
-      if (res !== null) {
-        _target.$off(event, onceHandler);
-      }
+  // ref #5318
+  // necessary to ensure parent re-render when deep bindings like :style and
+  // :class are used on slot nodes
+  function registerDeepBindings (data) {
+    if (isObject(data.style)) {
+      traverse(data.style);
+    }
+    if (isObject(data.class)) {
+      traverse(data.class);
     }
   }
 
-  function updateComponentListeners (
-    vm,
-    listeners,
-    oldListeners
-  ) {
-    target = vm;
-    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-    target = undefined;
-  }
-
   /*  */
 
-
-
   /**
-   * Runtime helper for resolving raw children VNodes into a slot object.
+   * Runtime helper for rendering v-for lists.
    */
-  function resolveSlots (
-    children,
-    context
+  function renderList (
+    val,
+    render
   ) {
-    if (!children || !children.length) {
-      return {}
-    }
-    var slots = {};
-    for (var i = 0, l = children.length; i < l; i++) {
-      var child = children[i];
-      var data = child.data;
-      // remove slot attribute if the node is resolved as a Vue slot node
-      if (data && data.attrs && data.attrs.slot) {
-        delete data.attrs.slot;
+    var ret, i, l, keys, key;
+    if (Array.isArray(val) || typeof val === 'string') {
+      ret = new Array(val.length);
+      for (i = 0, l = val.length; i < l; i++) {
+        ret[i] = render(val[i], i);
       }
-      // named slots should only be respected if the vnode was rendered in the
-      // same context.
-      if ((child.context === context || child.fnContext === context) &&
-        data && data.slot != null
-      ) {
-        var name = data.slot;
-        var slot = (slots[name] || (slots[name] = []));
-        if (child.tag === 'template') {
-          slot.push.apply(slot, child.children || []);
-        } else {
-          slot.push(child);
+    } else if (typeof val === 'number') {
+      ret = new Array(val);
+      for (i = 0; i < val; i++) {
+        ret[i] = render(i + 1, i);
+      }
+    } else if (isObject(val)) {
+      if (hasSymbol && val[Symbol.iterator]) {
+        ret = [];
+        var iterator = val[Symbol.iterator]();
+        var result = iterator.next();
+        while (!result.done) {
+          ret.push(render(result.value, ret.length));
+          result = iterator.next();
         }
       } else {
-        (slots.default || (slots.default = [])).push(child);
+        keys = Object.keys(val);
+        ret = new Array(keys.length);
+        for (i = 0, l = keys.length; i < l; i++) {
+          key = keys[i];
+          ret[i] = render(val[key], key, i);
+        }
       }
     }
-    // ignore slots that contains only whitespace
-    for (var name$1 in slots) {
-      if (slots[name$1].every(isWhitespace)) {
-        delete slots[name$1];
-      }
+    if (!isDef(ret)) {
+      ret = [];
     }
-    return slots
+    (ret)._isVList = true;
+    return ret
   }
 
-  function isWhitespace (node) {
-    return (node.isComment && !node.asyncFactory) || node.text === ' '
-  }
+  /*  */
 
-  function resolveScopedSlots (
-    fns, // see flow/vnode
-    hasDynamicKeys,
-    res
+  /**
+   * Runtime helper for rendering <slot>
+   */
+  function renderSlot (
+    name,
+    fallback,
+    props,
+    bindObject
   ) {
-    res = res || { $stable: !hasDynamicKeys };
-    for (var i = 0; i < fns.length; i++) {
-      var slot = fns[i];
-      if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, hasDynamicKeys, res);
-      } else if (slot) {
-        res[slot.key] = slot.fn;
+    var scopedSlotFn = this.$scopedSlots[name];
+    var nodes;
+    if (scopedSlotFn) { // scoped slot
+      props = props || {};
+      if (bindObject) {
+        if (!isObject(bindObject)) {
+          warn(
+            'slot v-bind without argument expects an Object',
+            this
+          );
+        }
+        props = extend(extend({}, bindObject), props);
       }
+      nodes = scopedSlotFn(props) || fallback;
+    } else {
+      nodes = this.$slots[name] || fallback;
+    }
+
+    var target = props && props.slot;
+    if (target) {
+      return this.$createElement('template', { slot: target }, nodes)
+    } else {
+      return nodes
     }
-    return res
   }
 
   /*  */
 
-  var activeInstance = null;
+  /**
+   * Runtime helper for resolving filters
+   */
+  function resolveFilter (id) {
+    return resolveAsset(this.$options, 'filters', id, true) || identity
+  }
 
-  function updateChildComponent (
-    vm,
-    propsData,
-    listeners,
-    parentVnode,
-    renderChildren
-  ) {
+  /*  */
 
-    // determine whether component has slot children
-    // we need to do this before overwriting $options._renderChildren.
+  function isKeyNotMatch (expect, actual) {
+    if (Array.isArray(expect)) {
+      return expect.indexOf(actual) === -1
+    } else {
+      return expect !== actual
+    }
+  }
 
-    // check if there are dynamic scopedSlots (hand-written or compiled but with
-    // dynamic slot names). Static scoped slots compiled from template has the
-    // "$stable" marker.
-    var hasDynamicScopedSlot = !!(
-      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-    );
-    // Any static slot children from the parent may have changed during parent's
-    // update. Dynamic scoped slots may also have changed. In such cases, a forced
-    // update is necessary to ensure correctness.
-    var needsForceUpdate = !!(
-      renderChildren ||               // has new static slots
-      vm.$options._renderChildren ||  // has old static slots
-      hasDynamicScopedSlot
-    );
+  /**
+   * Runtime helper for checking keyCodes from config.
+   * exposed as Vue.prototype._k
+   * passing in eventKeyName as last argument separately for backwards compat
+   */
+  function checkKeyCodes (
+    eventKeyCode,
+    key,
+    builtInKeyCode,
+    eventKeyName,
+    builtInKeyName
+  ) {
+    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+      return isKeyNotMatch(builtInKeyName, eventKeyName)
+    } else if (mappedKeyCode) {
+      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+    } else if (eventKeyName) {
+      return hyphenate(eventKeyName) !== key
+    }
+  }
 
-    vm.$options._parentVnode = parentVnode;
-    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+  /*  */
 
-    if (vm._vnode) { // update child tree's parent
-      vm._vnode.parent = parentVnode;
-    }
-    vm.$options._renderChildren = renderChildren;
+  /**
+   * Runtime helper for merging v-bind="object" into a VNode's data.
+   */
+  function bindObjectProps (
+    data,
+    tag,
+    value,
+    asProp,
+    isSync
+  ) {
+    if (value) {
+      if (!isObject(value)) {
+        warn(
+          'v-bind without argument expects an Object or Array value',
+          this
+        );
+      } else {
+        if (Array.isArray(value)) {
+          value = toObject(value);
+        }
+        var hash;
+        var loop = function ( key ) {
+          if (
+            key === 'class' ||
+            key === 'style' ||
+            isReservedAttribute(key)
+          ) {
+            hash = data;
+          } else {
+            var type = data.attrs && data.attrs.type;
+            hash = asProp || config.mustUseProp(tag, type, key)
+              ? data.domProps || (data.domProps = {})
+              : data.attrs || (data.attrs = {});
+          }
+          var camelizedKey = camelize(key);
+          if (!(key in hash) && !(camelizedKey in hash)) {
+            hash[key] = value[key];
 
-    // update $attrs and $listeners hash
-    // these are also reactive so they may trigger child update if the child
-    // used them during render
-    vm.$attrs = parentVnode.data.attrs || emptyObject;
-    vm.$listeners = listeners || emptyObject;
+            if (isSync) {
+              var on = data.on || (data.on = {});
+              on[("update:" + camelizedKey)] = function ($event) {
+                value[key] = $event;
+              };
+            }
+          }
+        };
 
-    // update props
-    if (propsData && vm.$options.props) {
-      toggleObserving(false);
-      var props = vm._props;
-      var propKeys = vm.$options._propKeys || [];
-      for (var i = 0; i < propKeys.length; i++) {
-        var key = propKeys[i];
-        var propOptions = vm.$options.props; // wtf flow?
-        props[key] = validateProp(key, propOptions, propsData, vm);
+        for (var key in value) loop( key );
       }
-      toggleObserving(true);
-      // keep a copy of raw propsData
-      vm.$options.propsData = propsData;
     }
+    return data
+  }
 
-    // update listeners
-    listeners = listeners || emptyObject;
-    var oldListeners = vm.$options._parentListeners;
-    vm.$options._parentListeners = listeners;
-    updateComponentListeners(vm, listeners, oldListeners);
+  /*  */
 
-    // resolve slots + force update if has children
-    if (needsForceUpdate) {
-      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-      vm.$forceUpdate();
+  /**
+   * Runtime helper for rendering static trees.
+   */
+  function renderStatic (
+    index,
+    isInFor
+  ) {
+    var cached = this._staticTrees || (this._staticTrees = []);
+    var tree = cached[index];
+    // if has already-rendered static tree and not inside v-for,
+    // we can reuse the same tree.
+    if (tree && !isInFor) {
+      return tree
     }
+    // otherwise, render a fresh tree.
+    tree = cached[index] = this.$options.staticRenderFns[index].call(
+      this._renderProxy,
+      null,
+      this // for render fns generated for functional component templates
+    );
+    markStatic(tree, ("__static__" + index), false);
+    return tree
   }
 
-  function isInInactiveTree (vm) {
-    while (vm && (vm = vm.$parent)) {
-      if (vm._inactive) { return true }
-    }
-    return false
+  /**
+   * Runtime helper for v-once.
+   * Effectively it means marking the node as static with a unique key.
+   */
+  function markOnce (
+    tree,
+    index,
+    key
+  ) {
+    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+    return tree
   }
 
-  function activateChildComponent (vm, direct) {
-    if (direct) {
-      vm._directInactive = false;
-      if (isInInactiveTree(vm)) {
-        return
-      }
-    } else if (vm._directInactive) {
-      return
-    }
-    if (vm._inactive || vm._inactive === null) {
-      vm._inactive = false;
-      for (var i = 0; i < vm.$children.length; i++) {
-        activateChildComponent(vm.$children[i]);
+  function markStatic (
+    tree,
+    key,
+    isOnce
+  ) {
+    if (Array.isArray(tree)) {
+      for (var i = 0; i < tree.length; i++) {
+        if (tree[i] && typeof tree[i] !== 'string') {
+          markStaticNode(tree[i], (key + "_" + i), isOnce);
+        }
       }
-      callHook(vm, 'activated');
+    } else {
+      markStaticNode(tree, key, isOnce);
     }
   }
 
-  function deactivateChildComponent (vm, direct) {
-    if (direct) {
-      vm._directInactive = true;
-      if (isInInactiveTree(vm)) {
-        return
-      }
-    }
-    if (!vm._inactive) {
-      vm._inactive = true;
-      for (var i = 0; i < vm.$children.length; i++) {
-        deactivateChildComponent(vm.$children[i]);
+  function markStaticNode (node, key, isOnce) {
+    node.isStatic = true;
+    node.key = key;
+    node.isOnce = isOnce;
+  }
+
+  /*  */
+
+  function bindObjectListeners (data, value) {
+    if (value) {
+      if (!isPlainObject(value)) {
+        warn(
+          'v-on without argument expects an Object value',
+          this
+        );
+      } else {
+        var on = data.on = data.on ? extend({}, data.on) : {};
+        for (var key in value) {
+          var existing = on[key];
+          var ours = value[key];
+          on[key] = existing ? [].concat(existing, ours) : ours;
+        }
       }
-      callHook(vm, 'deactivated');
     }
+    return data
   }
 
-  function callHook (vm, hook) {
-    // #7573 disable dep collection when invoking lifecycle hooks
-    pushTarget();
-    var handlers = vm.$options[hook];
-    var info = hook + " hook";
-    if (handlers) {
-      for (var i = 0, j = handlers.length; i < j; i++) {
-        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+  /*  */
+
+  function resolveScopedSlots (
+    fns, // see flow/vnode
+    hasDynamicKeys,
+    res
+  ) {
+    res = res || { $stable: !hasDynamicKeys };
+    for (var i = 0; i < fns.length; i++) {
+      var slot = fns[i];
+      if (Array.isArray(slot)) {
+        resolveScopedSlots(slot, hasDynamicKeys, res);
+      } else if (slot) {
+        res[slot.key] = slot.fn;
       }
     }
-    if (vm._hasHookEvent) {
-      vm.$emit('hook:' + hook);
-    }
-    popTarget();
+    return res
   }
 
   /*  */
 
-  // Async edge case fix requires storing an event listener's attach timestamp.
-  var getNow = Date.now;
-
-  // Determine what event timestamp the browser is using. Annoyingly, the
-  // timestamp can either be hi-res ( relative to poge load) or low-res
-  // (relative to UNIX epoch), so in order to compare time we have to use the
-  // same timestamp type when saving the flush timestamp.
-  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-    // if the low-res timestamp which is bigger than the event timestamp
-    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-    // and we need to use the hi-res version for event listeners as well.
-    getNow = function () { return performance.now(); };
+  function bindDynamicKeys (baseObj, values) {
+    for (var i = 0; i < values.length; i += 2) {
+      var key = values[i];
+      if (typeof key === 'string' && key) {
+        baseObj[values[i]] = values[i + 1];
+      } else if (key !== '' && key !== null) {
+        // null is a speical value for explicitly removing a binding
+        warn(
+          ("Invalid value for dynamic directive argument (expected string or null): " + key),
+          this
+        );
+      }
+    }
+    return baseObj
   }
 
-  /**
-   * Queue a kept-alive component that was activated during patch.
-   * The queue will be processed after the entire tree has been patched.
-   */
-  function queueActivatedComponent (vm) {
-    // setting _inactive to false here so that a render function can
-    // rely on checking whether it's in an inactive tree (e.g. router-view)
-    vm._inactive = false;
+  // helper to dynamically append modifier runtime markers to event names.
+  // ensure only append when value is already string, otherwise it will be cast
+  // to string and cause the type check to miss.
+  function prependModifier (value, symbol) {
+    return typeof value === 'string' ? symbol + value : value
   }
 
   /*  */
 
-  /*  */
+  function installRenderHelpers (target) {
+    target._o = markOnce;
+    target._n = toNumber;
+    target._s = toString;
+    target._l = renderList;
+    target._t = renderSlot;
+    target._q = looseEqual;
+    target._i = looseIndexOf;
+    target._m = renderStatic;
+    target._f = resolveFilter;
+    target._k = checkKeyCodes;
+    target._b = bindObjectProps;
+    target._v = createTextVNode;
+    target._e = createEmptyVNode;
+    target._u = resolveScopedSlots;
+    target._g = bindObjectListeners;
+    target._d = bindDynamicKeys;
+    target._p = prependModifier;
+  }
 
   /*  */
 
-  var SIMPLE_NORMALIZE = 1;
-  var ALWAYS_NORMALIZE = 2;
 
-  // wrapper function for providing a more flexible interface
-  // without getting yelled at by flow
-  function createElement (
-    context,
-    tag,
-    data,
+
+  /**
+   * Runtime helper for resolving raw children VNodes into a slot object.
+   */
+  function resolveSlots (
     children,
-    normalizationType,
-    alwaysNormalize
+    context
   ) {
-    if (Array.isArray(data) || isPrimitive(data)) {
-      normalizationType = children;
-      children = data;
-      data = undefined;
+    if (!children || !children.length) {
+      return {}
     }
-    if (isTrue(alwaysNormalize)) {
-      normalizationType = ALWAYS_NORMALIZE;
+    var slots = {};
+    for (var i = 0, l = children.length; i < l; i++) {
+      var child = children[i];
+      var data = child.data;
+      // remove slot attribute if the node is resolved as a Vue slot node
+      if (data && data.attrs && data.attrs.slot) {
+        delete data.attrs.slot;
+      }
+      // named slots should only be respected if the vnode was rendered in the
+      // same context.
+      if ((child.context === context || child.fnContext === context) &&
+        data && data.slot != null
+      ) {
+        var name = data.slot;
+        var slot = (slots[name] || (slots[name] = []));
+        if (child.tag === 'template') {
+          slot.push.apply(slot, child.children || []);
+        } else {
+          slot.push(child);
+        }
+      } else {
+        (slots.default || (slots.default = [])).push(child);
+      }
     }
-    return _createElement(context, tag, data, children, normalizationType)
+    // ignore slots that contains only whitespace
+    for (var name$1 in slots) {
+      if (slots[name$1].every(isWhitespace)) {
+        delete slots[name$1];
+      }
+    }
+    return slots
   }
 
-  function _createElement (
-    context,
-    tag,
-    data,
-    children,
-    normalizationType
-  ) {
-    if (isDef(data) && isDef((data).__ob__)) {
-      warn(
-        "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-        'Always create fresh vnode data objects in each render!',
-        context
-      );
-      return createEmptyVNode()
-    }
-    // object syntax in v-bind
-    if (isDef(data) && isDef(data.is)) {
-      tag = data.is;
-    }
-    if (!tag) {
-      // in case of component :is set to falsy value
-      return createEmptyVNode()
-    }
-    // warn against non-primitive key
-    if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-    ) {
-      {
-        warn(
-          'Avoid using non-primitive value as key, ' +
-          'use string/number value instead.',
-          context
-        );
-      }
-    }
-    // support single function children as default scoped slot
-    if (Array.isArray(children) &&
-      typeof children[0] === 'function'
-    ) {
-      data = data || {};
-      data.scopedSlots = { default: children[0] };
-      children.length = 0;
-    }
-    if (normalizationType === ALWAYS_NORMALIZE) {
-      children = normalizeChildren(children);
-    } else if (normalizationType === SIMPLE_NORMALIZE) {
-      children = simpleNormalizeChildren(children);
-    }
-    var vnode, ns;
-    if (typeof tag === 'string') {
-      var Ctor;
-      ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-      if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-        // component
-        vnode = createComponent(Ctor, data, context, children, tag);
-      } else {
-        // unknown or unlisted namespaced elements
-        // check at runtime because it may get assigned a namespace when its
-        // parent normalizes children
-        vnode = new VNode(
-          tag, data, children,
-          undefined, undefined, context
-        );
-      }
-    } else {
-      // direct component options / constructor
-      vnode = createComponent(tag, data, context, children);
-    }
-    if (Array.isArray(vnode)) {
-      return vnode
-    } else if (isDef(vnode)) {
-      if (isDef(ns)) { applyNS(vnode, ns); }
-      if (isDef(data)) { registerDeepBindings(data); }
-      return vnode
-    } else {
-      return createEmptyVNode()
-    }
-  }
-
-  function applyNS (vnode, ns, force) {
-    vnode.ns = ns;
-    if (vnode.tag === 'foreignObject') {
-      // use default namespace inside foreignObject
-      ns = undefined;
-      force = true;
-    }
-    if (isDef(vnode.children)) {
-      for (var i = 0, l = vnode.children.length; i < l; i++) {
-        var child = vnode.children[i];
-        if (isDef(child.tag) && (
-          isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-          applyNS(child, ns, force);
-        }
-      }
-    }
-  }
-
-  // ref #5318
-  // necessary to ensure parent re-render when deep bindings like :style and
-  // :class are used on slot nodes
-  function registerDeepBindings (data) {
-    if (isObject(data.style)) {
-      traverse(data.style);
-    }
-    if (isObject(data.class)) {
-      traverse(data.class);
-    }
+  function isWhitespace (node) {
+    return (node.isComment && !node.asyncFactory) || node.text === ' '
   }
 
   /*  */
 
-  /**
-   * Runtime helper for rendering v-for lists.
-   */
-  function renderList (
-    val,
-    render
+  function normalizeScopedSlots (
+    slots,
+    normalSlots
   ) {
-    var ret, i, l, keys, key;
-    if (Array.isArray(val) || typeof val === 'string') {
-      ret = new Array(val.length);
-      for (i = 0, l = val.length; i < l; i++) {
-        ret[i] = render(val[i], i);
-      }
-    } else if (typeof val === 'number') {
-      ret = new Array(val);
-      for (i = 0; i < val; i++) {
-        ret[i] = render(i + 1, i);
-      }
-    } else if (isObject(val)) {
-      if (hasSymbol && val[Symbol.iterator]) {
-        ret = [];
-        var iterator = val[Symbol.iterator]();
-        var result = iterator.next();
-        while (!result.done) {
-          ret.push(render(result.value, ret.length));
-          result = iterator.next();
-        }
-      } else {
-        keys = Object.keys(val);
-        ret = new Array(keys.length);
-        for (i = 0, l = keys.length; i < l; i++) {
-          key = keys[i];
-          ret[i] = render(val[key], key, i);
+    var res;
+    if (!slots) {
+      res = {};
+    } else if (slots._normalized) {
+      return slots
+    } else {
+      res = {};
+      for (var key in slots) {
+        if (slots[key] && key[0] !== '$') {
+          res[key] = normalizeScopedSlot(slots[key]);
         }
       }
     }
-    if (!isDef(ret)) {
-      ret = [];
+    // expose normal slots on scopedSlots
+    for (var key$1 in normalSlots) {
+      if (!(key$1 in res)) {
+        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+      }
     }
-    (ret)._isVList = true;
-    return ret
+    def(res, '_normalized', true);
+    def(res, '$stable', slots ? !!slots.$stable : true);
+    return res
   }
 
-  /*  */
-
-  /**
-   * Runtime helper for rendering <slot>
-   */
-  function renderSlot (
-    name,
-    fallback,
-    props,
-    bindObject
-  ) {
-    var scopedSlotFn = this.$scopedSlots[name];
-    var nodes;
-    if (scopedSlotFn) { // scoped slot
-      props = props || {};
-      if (bindObject) {
-        if (!isObject(bindObject)) {
-          warn(
-            'slot v-bind without argument expects an Object',
-            this
-          );
-        }
-        props = extend(extend({}, bindObject), props);
-      }
-      nodes = scopedSlotFn(props) || fallback;
-    } else {
-      nodes = this.$slots[name] || fallback;
+  function normalizeScopedSlot(fn) {
+    return function (scope) {
+      var res = fn(scope);
+      return res && typeof res === 'object' && !Array.isArray(res)
+        ? [res] // single vnode
+        : normalizeChildren(res)
     }
+  }
 
-    var target = props && props.slot;
-    if (target) {
-      return this.$createElement('template', { slot: target }, nodes)
-    } else {
-      return nodes
-    }
+  function proxyNormalSlot(slots, key) {
+    return function () { return slots[key]; }
   }
 
   /*  */
 
-  /**
-   * Runtime helper for resolving filters
-   */
-  function resolveFilter (id) {
-    return resolveAsset(this.$options, 'filters', id, true) || identity
-  }
+  var currentRenderingInstance = null;
 
   /*  */
 
-  function isKeyNotMatch (expect, actual) {
-    if (Array.isArray(expect)) {
-      return expect.indexOf(actual) === -1
-    } else {
-      return expect !== actual
+  function ensureCtor (comp, base) {
+    if (
+      comp.__esModule ||
+      (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+    ) {
+      comp = comp.default;
     }
+    return isObject(comp)
+      ? base.extend(comp)
+      : comp
   }
 
-  /**
-   * Runtime helper for checking keyCodes from config.
-   * exposed as Vue.prototype._k
-   * passing in eventKeyName as last argument separately for backwards compat
-   */
-  function checkKeyCodes (
-    eventKeyCode,
-    key,
-    builtInKeyCode,
-    eventKeyName,
-    builtInKeyName
+  function createAsyncPlaceholder (
+    factory,
+    data,
+    context,
+    children,
+    tag
   ) {
-    var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-    if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-      return isKeyNotMatch(builtInKeyName, eventKeyName)
-    } else if (mappedKeyCode) {
-      return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-    } else if (eventKeyName) {
-      return hyphenate(eventKeyName) !== key
-    }
+    var node = createEmptyVNode();
+    node.asyncFactory = factory;
+    node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+    return node
   }
 
-  /*  */
-
-  /**
-   * Runtime helper for merging v-bind="object" into a VNode's data.
-   */
-  function bindObjectProps (
-    data,
-    tag,
-    value,
-    asProp,
-    isSync
+  function resolveAsyncComponent (
+    factory,
+    baseCtor
   ) {
-    if (value) {
-      if (!isObject(value)) {
+    if (isTrue(factory.error) && isDef(factory.errorComp)) {
+      return factory.errorComp
+    }
+
+    if (isDef(factory.resolved)) {
+      return factory.resolved
+    }
+
+    if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+      return factory.loadingComp
+    }
+
+    var owner = currentRenderingInstance;
+    if (isDef(factory.owners)) {
+      // already pending
+      factory.owners.push(owner);
+    } else {
+      var owners = factory.owners = [owner];
+      var sync = true;
+
+      var forceRender = function (renderCompleted) {
+        for (var i = 0, l = owners.length; i < l; i++) {
+          (owners[i]).$forceUpdate();
+        }
+
+        if (renderCompleted) {
+          owners.length = 0;
+        }
+      };
+
+      var resolve = once(function (res) {
+        // cache resolved
+        factory.resolved = ensureCtor(res, baseCtor);
+        // invoke callbacks only if this is not a synchronous resolve
+        // (async resolves are shimmed as synchronous during SSR)
+        if (!sync) {
+          forceRender(true);
+        } else {
+          owners.length = 0;
+        }
+      });
+
+      var reject = once(function (reason) {
         warn(
-          'v-bind without argument expects an Object or Array value',
-          this
+          "Failed to resolve async component: " + (String(factory)) +
+          (reason ? ("\nReason: " + reason) : '')
         );
-      } else {
-        if (Array.isArray(value)) {
-          value = toObject(value);
+        if (isDef(factory.errorComp)) {
+          factory.error = true;
+          forceRender(true);
         }
-        var hash;
-        var loop = function ( key ) {
-          if (
-            key === 'class' ||
-            key === 'style' ||
-            isReservedAttribute(key)
-          ) {
-            hash = data;
-          } else {
-            var type = data.attrs && data.attrs.type;
-            hash = asProp || config.mustUseProp(tag, type, key)
-              ? data.domProps || (data.domProps = {})
-              : data.attrs || (data.attrs = {});
-          }
-          var camelizedKey = camelize(key);
-          if (!(key in hash) && !(camelizedKey in hash)) {
-            hash[key] = value[key];
-
-            if (isSync) {
-              var on = data.on || (data.on = {});
-              on[("update:" + camelizedKey)] = function ($event) {
-                value[key] = $event;
-              };
-            }
-          }
-        };
+      });
 
-        for (var key in value) loop( key );
-      }
-    }
-    return data
-  }
+      var res = factory(resolve, reject);
 
-  /*  */
+      if (isObject(res)) {
+        if (isPromise(res)) {
+          // () => Promise
+          if (isUndef(factory.resolved)) {
+            res.then(resolve, reject);
+          }
+        } else if (isPromise(res.component)) {
+          res.component.then(resolve, reject);
 
-  /**
-   * Runtime helper for rendering static trees.
-   */
-  function renderStatic (
-    index,
-    isInFor
-  ) {
-    var cached = this._staticTrees || (this._staticTrees = []);
-    var tree = cached[index];
-    // if has already-rendered static tree and not inside v-for,
-    // we can reuse the same tree.
-    if (tree && !isInFor) {
-      return tree
-    }
-    // otherwise, render a fresh tree.
-    tree = cached[index] = this.$options.staticRenderFns[index].call(
-      this._renderProxy,
-      null,
-      this // for render fns generated for functional component templates
-    );
-    markStatic(tree, ("__static__" + index), false);
-    return tree
-  }
+          if (isDef(res.error)) {
+            factory.errorComp = ensureCtor(res.error, baseCtor);
+          }
 
-  /**
-   * Runtime helper for v-once.
-   * Effectively it means marking the node as static with a unique key.
-   */
-  function markOnce (
-    tree,
-    index,
-    key
-  ) {
-    markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-    return tree
-  }
+          if (isDef(res.loading)) {
+            factory.loadingComp = ensureCtor(res.loading, baseCtor);
+            if (res.delay === 0) {
+              factory.loading = true;
+            } else {
+              setTimeout(function () {
+                if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                  factory.loading = true;
+                  forceRender(false);
+                }
+              }, res.delay || 200);
+            }
+          }
 
-  function markStatic (
-    tree,
-    key,
-    isOnce
-  ) {
-    if (Array.isArray(tree)) {
-      for (var i = 0; i < tree.length; i++) {
-        if (tree[i] && typeof tree[i] !== 'string') {
-          markStaticNode(tree[i], (key + "_" + i), isOnce);
+          if (isDef(res.timeout)) {
+            setTimeout(function () {
+              if (isUndef(factory.resolved)) {
+                reject(
+                  "timeout (" + (res.timeout) + "ms)"
+                );
+              }
+            }, res.timeout);
+          }
         }
       }
-    } else {
-      markStaticNode(tree, key, isOnce);
+
+      sync = false;
+      // return in case resolved synchronously
+      return factory.loading
+        ? factory.loadingComp
+        : factory.resolved
     }
   }
 
-  function markStaticNode (node, key, isOnce) {
-    node.isStatic = true;
-    node.key = key;
-    node.isOnce = isOnce;
-  }
+  /*  */
 
   /*  */
 
-  function bindObjectListeners (data, value) {
-    if (value) {
-      if (!isPlainObject(value)) {
-        warn(
-          'v-on without argument expects an Object value',
-          this
-        );
-      } else {
-        var on = data.on = data.on ? extend({}, data.on) : {};
-        for (var key in value) {
-          var existing = on[key];
-          var ours = value[key];
-          on[key] = existing ? [].concat(existing, ours) : ours;
-        }
-      }
-    }
-    return data
-  }
+  /*  */
 
   /*  */
 
-  function bindDynamicKeys (baseObj, values) {
-    for (var i = 0; i < values.length; i += 2) {
-      var key = values[i];
-      if (typeof key === 'string' && key) {
-        baseObj[values[i]] = values[i + 1];
-      } else if (key !== '' && key !== null) {
-        // null is a speical value for explicitly removing a binding
-        warn(
-          ("Invalid value for dynamic directive argument (expected string or null): " + key),
-          this
-        );
+  var target;
+
+  function add (event, fn) {
+    target.$on(event, fn);
+  }
+
+  function remove$1 (event, fn) {
+    target.$off(event, fn);
+  }
+
+  function createOnceHandler (event, fn) {
+    var _target = target;
+    return function onceHandler () {
+      var res = fn.apply(null, arguments);
+      if (res !== null) {
+        _target.$off(event, onceHandler);
       }
     }
-    return baseObj
   }
 
-  // helper to dynamically append modifier runtime markers to event names.
-  // ensure only append when value is already string, otherwise it will be cast
-  // to string and cause the type check to miss.
-  function prependModifier (value, symbol) {
-    return typeof value === 'string' ? symbol + value : value
+  function updateComponentListeners (
+    vm,
+    listeners,
+    oldListeners
+  ) {
+    target = vm;
+    updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+    target = undefined;
   }
 
   /*  */
 
-  function installRenderHelpers (target) {
-    target._o = markOnce;
-    target._n = toNumber;
-    target._s = toString;
-    target._l = renderList;
-    target._t = renderSlot;
-    target._q = looseEqual;
-    target._i = looseIndexOf;
-    target._m = renderStatic;
-    target._f = resolveFilter;
-    target._k = checkKeyCodes;
-    target._b = bindObjectProps;
-    target._v = createTextVNode;
-    target._e = createEmptyVNode;
-    target._u = resolveScopedSlots;
-    target._g = bindObjectListeners;
-    target._d = bindDynamicKeys;
-    target._p = prependModifier;
+  var activeInstance = null;
+
+  function updateChildComponent (
+    vm,
+    propsData,
+    listeners,
+    parentVnode,
+    renderChildren
+  ) {
+
+    // determine whether component has slot children
+    // we need to do this before overwriting $options._renderChildren.
+
+    // check if there are dynamic scopedSlots (hand-written or compiled but with
+    // dynamic slot names). Static scoped slots compiled from template has the
+    // "$stable" marker.
+    var hasDynamicScopedSlot = !!(
+      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    );
+
+    // Any static slot children from the parent may have changed during parent's
+    // update. Dynamic scoped slots may also have changed. In such cases, a forced
+    // update is necessary to ensure correctness.
+    var needsForceUpdate = !!(
+      renderChildren ||               // has new static slots
+      vm.$options._renderChildren ||  // has old static slots
+      hasDynamicScopedSlot
+    );
+
+    vm.$options._parentVnode = parentVnode;
+    vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+    if (vm._vnode) { // update child tree's parent
+      vm._vnode.parent = parentVnode;
+    }
+    vm.$options._renderChildren = renderChildren;
+
+    // update $attrs and $listeners hash
+    // these are also reactive so they may trigger child update if the child
+    // used them during render
+    vm.$attrs = parentVnode.data.attrs || emptyObject;
+    vm.$listeners = listeners || emptyObject;
+
+    // update props
+    if (propsData && vm.$options.props) {
+      toggleObserving(false);
+      var props = vm._props;
+      var propKeys = vm.$options._propKeys || [];
+      for (var i = 0; i < propKeys.length; i++) {
+        var key = propKeys[i];
+        var propOptions = vm.$options.props; // wtf flow?
+        props[key] = validateProp(key, propOptions, propsData, vm);
+      }
+      toggleObserving(true);
+      // keep a copy of raw propsData
+      vm.$options.propsData = propsData;
+    }
+
+    // update listeners
+    listeners = listeners || emptyObject;
+    var oldListeners = vm.$options._parentListeners;
+    vm.$options._parentListeners = listeners;
+    updateComponentListeners(vm, listeners, oldListeners);
+
+    // resolve slots + force update if has children
+    if (needsForceUpdate) {
+      vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+      vm.$forceUpdate();
+    }
   }
 
-  /*  */
+  function isInInactiveTree (vm) {
+    while (vm && (vm = vm.$parent)) {
+      if (vm._inactive) { return true }
+    }
+    return false
+  }
 
-  function normalizeScopedSlots (
-    slots,
-    normalSlots
-  ) {
-    var res;
-    if (!slots) {
-      res = {};
-    } else if (slots._normalized) {
-      return slots
-    } else {
-      res = {};
-      for (var key in slots) {
-        if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-        }
+  function activateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = false;
+      if (isInInactiveTree(vm)) {
+        return
       }
+    } else if (vm._directInactive) {
+      return
     }
-    // expose normal slots on scopedSlots
-    for (var key$1 in normalSlots) {
-      if (!(key$1 in res)) {
-        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    if (vm._inactive || vm._inactive === null) {
+      vm._inactive = false;
+      for (var i = 0; i < vm.$children.length; i++) {
+        activateChildComponent(vm.$children[i]);
       }
+      callHook(vm, 'activated');
     }
-    res._normalized = true;
-    res.$stable = slots ? slots.$stable : true;
-    return res
   }
 
-  function normalizeScopedSlot(normalSlots, key, fn) {
-    var normalized = function (scope) {
-      if ( scope === void 0 ) scope = {};
+  function deactivateChildComponent (vm, direct) {
+    if (direct) {
+      vm._directInactive = true;
+      if (isInInactiveTree(vm)) {
+        return
+      }
+    }
+    if (!vm._inactive) {
+      vm._inactive = true;
+      for (var i = 0; i < vm.$children.length; i++) {
+        deactivateChildComponent(vm.$children[i]);
+      }
+      callHook(vm, 'deactivated');
+    }
+  }
 
-      var res = fn(scope);
-      return res && typeof res === 'object' && !Array.isArray(res)
-        ? [res] // single vnode
-        : normalizeChildren(res)
-    };
-    // proxy scoped slots on normal $slots
-    if (!hasOwn(normalSlots, key)) {
-      Object.defineProperty(normalSlots, key, {
-        get: normalized
-      });
+  function callHook (vm, hook) {
+    // #7573 disable dep collection when invoking lifecycle hooks
+    pushTarget();
+    var handlers = vm.$options[hook];
+    var info = hook + " hook";
+    if (handlers) {
+      for (var i = 0, j = handlers.length; i < j; i++) {
+        invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+      }
+    }
+    if (vm._hasHookEvent) {
+      vm.$emit('hook:' + hook);
     }
-    return normalized
+    popTarget();
   }
 
-  function proxyNormalSlot(slots, key) {
-    return function () { return slots[key]; }
+  /*  */
+
+  // Async edge case fix requires storing an event listener's attach timestamp.
+  var getNow = Date.now;
+
+  // Determine what event timestamp the browser is using. Annoyingly, the
+  // timestamp can either be hi-res (relative to page load) or low-res
+  // (relative to UNIX epoch), so in order to compare time we have to use the
+  // same timestamp type when saving the flush timestamp.
+  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+    // if the low-res timestamp which is bigger than the event timestamp
+    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listeners as well.
+    getNow = function () { return performance.now(); };
+  }
+
+  /**
+   * Queue a kept-alive component that was activated during patch.
+   * The queue will be processed after the entire tree has been patched.
+   */
+  function queueActivatedComponent (vm) {
+    // setting _inactive to false here so that a render function can
+    // rely on checking whether it's in an inactive tree (e.g. router-view)
+    vm._inactive = false;
   }
 
   /*  */
 
   /*  */
 
+  /*  */
+
   function resolveInject (inject, vm) {
     if (inject) {
       // inject is :any because flow is not smart enough to figure out cached
@@ -8151,7 +8183,7 @@
     var asyncFactory;
     if (isUndef(Ctor.cid)) {
       asyncFactory = Ctor;
-      Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+      Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
       if (Ctor === undefined) {
         // return a placeholder node for async component, which is rendered
         // as a comment node but preserves all the raw information for the node.
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index a672e4a6ca3..cfde803378a 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -696,6 +696,7 @@ var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 var isPhantomJS = UA && /phantomjs/.test(UA);
+var isFF = UA && UA.match(/firefox\/(\d+)/);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -3564,6 +3565,8 @@ var invalidAttributeRE = /[\s"'<>\/=]/;
 
 var decodeHTMLCached = cached(he.decode);
 
+var emptySlotScopeToken = "_empty_";
+
 // configurable state
 var warn$1;
 var delimiters;
@@ -4176,7 +4179,7 @@ function processSlotContent (el) {
         var dynamic = ref.dynamic;
         el.slotTarget = name;
         el.slotTargetDynamic = dynamic;
-        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+        el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
       }
     } else {
       // v-slot on component, denotes default slot
@@ -4211,8 +4214,13 @@ function processSlotContent (el) {
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
         slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
-        slotContainer.slotScope = slotBinding$1.value || "_";
+        slotContainer.children = el.children.filter(function (c) {
+          if (!c.slotScope) {
+            c.parent = slotContainer;
+            return true
+          }
+        });
+        slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
         // remove children as they are returned from scopedSlots now
         el.children = [];
         // mark el non-plain so data gets generated
@@ -5180,7 +5188,7 @@ function genData$2 (el, state) {
   }
   // scoped slots
   if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+    data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
   }
   // component v-model
   if (el.model) {
@@ -5251,16 +5259,34 @@ function genInlineTemplate (el, state) {
 }
 
 function genScopedSlots (
+  el,
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+  // by default scoped slots are considered "stable", this allows child
+  // components with only scoped slots to skip forced updates from parent.
+  // but in some cases we have to bail-out of this optimization
+  // for example if the slot contains dynamic names, has v-if or v-for on them...
+  var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return slot.slotTargetDynamic || slot.if || slot.for
   });
+  // OR when it is inside another scoped slot (the reactivity is disconnected)
+  // #9438
+  if (!needsForceUpdate) {
+    var parent = el.parent;
+    while (parent) {
+      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        needsForceUpdate = true;
+        break
+      }
+      parent = parent.parent;
+    }
+  }
+
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
       return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
@@ -5274,7 +5300,10 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genFor(el, state, genScopedSlot)
   }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
+  var slotScope = el.slotScope === emptySlotScopeToken
+    ? ""
+    : String(el.slotScope);
+  var fn = "function(" + slotScope + "){" +
     "return " + (el.tag === 'template'
       ? el.if && isLegacySyntax
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
@@ -5367,7 +5396,14 @@ function genSlot (el, state) {
   var slotName = el.slotName || '"default"';
   var children = genChildren(el, state);
   var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var attrs = el.attrs || el.dynamicAttrs
+    ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
+        // slot props are camelized
+        name: camelize(attr.name),
+        value: attr.value,
+        dynamic: attr.dynamic
+      }); }))
+    : null;
   var bind$$1 = el.attrsMap['v-bind'];
   if ((attrs || bind$$1) && !children) {
     res += ",null";
@@ -6695,900 +6731,896 @@ function checkProp (
 
 /*  */
 
-function ensureCtor (comp, base) {
-  if (
-    comp.__esModule ||
-    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
-  ) {
-    comp = comp.default;
-  }
-  return isObject(comp)
-    ? base.extend(comp)
-    : comp
-}
+var SIMPLE_NORMALIZE = 1;
+var ALWAYS_NORMALIZE = 2;
 
-function createAsyncPlaceholder (
-  factory,
-  data,
+// wrapper function for providing a more flexible interface
+// without getting yelled at by flow
+function createElement (
   context,
+  tag,
+  data,
   children,
-  tag
+  normalizationType,
+  alwaysNormalize
 ) {
-  var node = createEmptyVNode();
-  node.asyncFactory = factory;
-  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
-  return node
+  if (Array.isArray(data) || isPrimitive(data)) {
+    normalizationType = children;
+    children = data;
+    data = undefined;
+  }
+  if (isTrue(alwaysNormalize)) {
+    normalizationType = ALWAYS_NORMALIZE;
+  }
+  return _createElement(context, tag, data, children, normalizationType)
 }
 
-function resolveAsyncComponent (
-  factory,
-  baseCtor,
-  context
+function _createElement (
+  context,
+  tag,
+  data,
+  children,
+  normalizationType
 ) {
-  if (isTrue(factory.error) && isDef(factory.errorComp)) {
-    return factory.errorComp
+  if (isDef(data) && isDef((data).__ob__)) {
+    warn(
+      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
+      'Always create fresh vnode data objects in each render!',
+      context
+    );
+    return createEmptyVNode()
   }
-
-  if (isDef(factory.resolved)) {
-    return factory.resolved
+  // object syntax in v-bind
+  if (isDef(data) && isDef(data.is)) {
+    tag = data.is;
   }
-
-  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
-    return factory.loadingComp
+  if (!tag) {
+    // in case of component :is set to falsy value
+    return createEmptyVNode()
   }
-
-  if (isDef(factory.contexts)) {
-    // already pending
-    factory.contexts.push(context);
-  } else {
-    var contexts = factory.contexts = [context];
-    var sync = true;
-
-    var forceRender = function (renderCompleted) {
-      for (var i = 0, l = contexts.length; i < l; i++) {
-        contexts[i].$forceUpdate();
-      }
-
-      if (renderCompleted) {
-        contexts.length = 0;
-      }
-    };
-
-    var resolve = once(function (res) {
-      // cache resolved
-      factory.resolved = ensureCtor(res, baseCtor);
-      // invoke callbacks only if this is not a synchronous resolve
-      // (async resolves are shimmed as synchronous during SSR)
-      if (!sync) {
-        forceRender(true);
-      } else {
-        contexts.length = 0;
-      }
-    });
-
-    var reject = once(function (reason) {
+  // warn against non-primitive key
+  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
+  ) {
+    {
       warn(
-        "Failed to resolve async component: " + (String(factory)) +
-        (reason ? ("\nReason: " + reason) : '')
+        'Avoid using non-primitive value as key, ' +
+        'use string/number value instead.',
+        context
       );
-      if (isDef(factory.errorComp)) {
-        factory.error = true;
-        forceRender(true);
-      }
-    });
-
-    var res = factory(resolve, reject);
-
-    if (isObject(res)) {
-      if (isPromise(res)) {
-        // () => Promise
-        if (isUndef(factory.resolved)) {
-          res.then(resolve, reject);
-        }
-      } else if (isPromise(res.component)) {
-        res.component.then(resolve, reject);
-
-        if (isDef(res.error)) {
-          factory.errorComp = ensureCtor(res.error, baseCtor);
-        }
-
-        if (isDef(res.loading)) {
-          factory.loadingComp = ensureCtor(res.loading, baseCtor);
-          if (res.delay === 0) {
-            factory.loading = true;
-          } else {
-            setTimeout(function () {
-              if (isUndef(factory.resolved) && isUndef(factory.error)) {
-                factory.loading = true;
-                forceRender(false);
-              }
-            }, res.delay || 200);
-          }
-        }
-
-        if (isDef(res.timeout)) {
-          setTimeout(function () {
-            if (isUndef(factory.resolved)) {
-              reject(
-                "timeout (" + (res.timeout) + "ms)"
-              );
-            }
-          }, res.timeout);
-        }
-      }
     }
-
-    sync = false;
-    // return in case resolved synchronously
-    return factory.loading
-      ? factory.loadingComp
-      : factory.resolved
+  }
+  // support single function children as default scoped slot
+  if (Array.isArray(children) &&
+    typeof children[0] === 'function'
+  ) {
+    data = data || {};
+    data.scopedSlots = { default: children[0] };
+    children.length = 0;
+  }
+  if (normalizationType === ALWAYS_NORMALIZE) {
+    children = normalizeChildren(children);
+  } else if (normalizationType === SIMPLE_NORMALIZE) {
+    children = simpleNormalizeChildren(children);
+  }
+  var vnode, ns;
+  if (typeof tag === 'string') {
+    var Ctor;
+    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
+    if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
+      // component
+      vnode = createComponent(Ctor, data, context, children, tag);
+    } else {
+      // unknown or unlisted namespaced elements
+      // check at runtime because it may get assigned a namespace when its
+      // parent normalizes children
+      vnode = new VNode(
+        tag, data, children,
+        undefined, undefined, context
+      );
+    }
+  } else {
+    // direct component options / constructor
+    vnode = createComponent(tag, data, context, children);
+  }
+  if (Array.isArray(vnode)) {
+    return vnode
+  } else if (isDef(vnode)) {
+    if (isDef(ns)) { applyNS(vnode, ns); }
+    if (isDef(data)) { registerDeepBindings(data); }
+    return vnode
+  } else {
+    return createEmptyVNode()
   }
 }
 
-/*  */
-
-/*  */
-
-/*  */
-
-/*  */
-
-var target;
-
-function add (event, fn) {
-  target.$on(event, fn);
-}
-
-function remove$1 (event, fn) {
-  target.$off(event, fn);
+function applyNS (vnode, ns, force) {
+  vnode.ns = ns;
+  if (vnode.tag === 'foreignObject') {
+    // use default namespace inside foreignObject
+    ns = undefined;
+    force = true;
+  }
+  if (isDef(vnode.children)) {
+    for (var i = 0, l = vnode.children.length; i < l; i++) {
+      var child = vnode.children[i];
+      if (isDef(child.tag) && (
+        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
+        applyNS(child, ns, force);
+      }
+    }
+  }
 }
 
-function createOnceHandler (event, fn) {
-  var _target = target;
-  return function onceHandler () {
-    var res = fn.apply(null, arguments);
-    if (res !== null) {
-      _target.$off(event, onceHandler);
-    }
+// ref #5318
+// necessary to ensure parent re-render when deep bindings like :style and
+// :class are used on slot nodes
+function registerDeepBindings (data) {
+  if (isObject(data.style)) {
+    traverse(data.style);
+  }
+  if (isObject(data.class)) {
+    traverse(data.class);
   }
 }
 
-function updateComponentListeners (
-  vm,
-  listeners,
-  oldListeners
-) {
-  target = vm;
-  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
-  target = undefined;
-}
-
 /*  */
 
-
-
 /**
- * Runtime helper for resolving raw children VNodes into a slot object.
+ * Runtime helper for rendering v-for lists.
  */
-function resolveSlots (
-  children,
-  context
+function renderList (
+  val,
+  render
 ) {
-  if (!children || !children.length) {
-    return {}
-  }
-  var slots = {};
-  for (var i = 0, l = children.length; i < l; i++) {
-    var child = children[i];
-    var data = child.data;
-    // remove slot attribute if the node is resolved as a Vue slot node
-    if (data && data.attrs && data.attrs.slot) {
-      delete data.attrs.slot;
+  var ret, i, l, keys, key;
+  if (Array.isArray(val) || typeof val === 'string') {
+    ret = new Array(val.length);
+    for (i = 0, l = val.length; i < l; i++) {
+      ret[i] = render(val[i], i);
     }
-    // named slots should only be respected if the vnode was rendered in the
-    // same context.
-    if ((child.context === context || child.fnContext === context) &&
-      data && data.slot != null
-    ) {
-      var name = data.slot;
-      var slot = (slots[name] || (slots[name] = []));
-      if (child.tag === 'template') {
-        slot.push.apply(slot, child.children || []);
-      } else {
-        slot.push(child);
+  } else if (typeof val === 'number') {
+    ret = new Array(val);
+    for (i = 0; i < val; i++) {
+      ret[i] = render(i + 1, i);
+    }
+  } else if (isObject(val)) {
+    if (hasSymbol && val[Symbol.iterator]) {
+      ret = [];
+      var iterator = val[Symbol.iterator]();
+      var result = iterator.next();
+      while (!result.done) {
+        ret.push(render(result.value, ret.length));
+        result = iterator.next();
       }
     } else {
-      (slots.default || (slots.default = [])).push(child);
+      keys = Object.keys(val);
+      ret = new Array(keys.length);
+      for (i = 0, l = keys.length; i < l; i++) {
+        key = keys[i];
+        ret[i] = render(val[key], key, i);
+      }
     }
   }
-  // ignore slots that contains only whitespace
-  for (var name$1 in slots) {
-    if (slots[name$1].every(isWhitespace)) {
-      delete slots[name$1];
-    }
+  if (!isDef(ret)) {
+    ret = [];
   }
-  return slots
+  (ret)._isVList = true;
+  return ret
 }
 
-function isWhitespace (node) {
-  return (node.isComment && !node.asyncFactory) || node.text === ' '
-}
+/*  */
 
-function resolveScopedSlots (
-  fns, // see flow/vnode
-  hasDynamicKeys,
-  res
+/**
+ * Runtime helper for rendering <slot>
+ */
+function renderSlot (
+  name,
+  fallback,
+  props,
+  bindObject
 ) {
-  res = res || { $stable: !hasDynamicKeys };
-  for (var i = 0; i < fns.length; i++) {
-    var slot = fns[i];
-    if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
-    } else if (slot) {
-      res[slot.key] = slot.fn;
+  var scopedSlotFn = this.$scopedSlots[name];
+  var nodes;
+  if (scopedSlotFn) { // scoped slot
+    props = props || {};
+    if (bindObject) {
+      if (!isObject(bindObject)) {
+        warn(
+          'slot v-bind without argument expects an Object',
+          this
+        );
+      }
+      props = extend(extend({}, bindObject), props);
     }
+    nodes = scopedSlotFn(props) || fallback;
+  } else {
+    nodes = this.$slots[name] || fallback;
+  }
+
+  var target = props && props.slot;
+  if (target) {
+    return this.$createElement('template', { slot: target }, nodes)
+  } else {
+    return nodes
   }
-  return res
 }
 
 /*  */
 
-var activeInstance = null;
+/**
+ * Runtime helper for resolving filters
+ */
+function resolveFilter (id) {
+  return resolveAsset(this.$options, 'filters', id, true) || identity
+}
 
-function updateChildComponent (
-  vm,
-  propsData,
-  listeners,
-  parentVnode,
-  renderChildren
-) {
+/*  */
 
-  // determine whether component has slot children
-  // we need to do this before overwriting $options._renderChildren.
+function isKeyNotMatch (expect, actual) {
+  if (Array.isArray(expect)) {
+    return expect.indexOf(actual) === -1
+  } else {
+    return expect !== actual
+  }
+}
 
-  // check if there are dynamic scopedSlots (hand-written or compiled but with
-  // dynamic slot names). Static scoped slots compiled from template has the
-  // "$stable" marker.
-  var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
-  );
-  // Any static slot children from the parent may have changed during parent's
-  // update. Dynamic scoped slots may also have changed. In such cases, a forced
-  // update is necessary to ensure correctness.
-  var needsForceUpdate = !!(
-    renderChildren ||               // has new static slots
-    vm.$options._renderChildren ||  // has old static slots
-    hasDynamicScopedSlot
-  );
+/**
+ * Runtime helper for checking keyCodes from config.
+ * exposed as Vue.prototype._k
+ * passing in eventKeyName as last argument separately for backwards compat
+ */
+function checkKeyCodes (
+  eventKeyCode,
+  key,
+  builtInKeyCode,
+  eventKeyName,
+  builtInKeyName
+) {
+  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
+  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
+    return isKeyNotMatch(builtInKeyName, eventKeyName)
+  } else if (mappedKeyCode) {
+    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
+  } else if (eventKeyName) {
+    return hyphenate(eventKeyName) !== key
+  }
+}
 
-  vm.$options._parentVnode = parentVnode;
-  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+/*  */
 
-  if (vm._vnode) { // update child tree's parent
-    vm._vnode.parent = parentVnode;
-  }
-  vm.$options._renderChildren = renderChildren;
+/**
+ * Runtime helper for merging v-bind="object" into a VNode's data.
+ */
+function bindObjectProps (
+  data,
+  tag,
+  value,
+  asProp,
+  isSync
+) {
+  if (value) {
+    if (!isObject(value)) {
+      warn(
+        'v-bind without argument expects an Object or Array value',
+        this
+      );
+    } else {
+      if (Array.isArray(value)) {
+        value = toObject(value);
+      }
+      var hash;
+      var loop = function ( key ) {
+        if (
+          key === 'class' ||
+          key === 'style' ||
+          isReservedAttribute(key)
+        ) {
+          hash = data;
+        } else {
+          var type = data.attrs && data.attrs.type;
+          hash = asProp || config.mustUseProp(tag, type, key)
+            ? data.domProps || (data.domProps = {})
+            : data.attrs || (data.attrs = {});
+        }
+        var camelizedKey = camelize(key);
+        if (!(key in hash) && !(camelizedKey in hash)) {
+          hash[key] = value[key];
 
-  // update $attrs and $listeners hash
-  // these are also reactive so they may trigger child update if the child
-  // used them during render
-  vm.$attrs = parentVnode.data.attrs || emptyObject;
-  vm.$listeners = listeners || emptyObject;
+          if (isSync) {
+            var on = data.on || (data.on = {});
+            on[("update:" + camelizedKey)] = function ($event) {
+              value[key] = $event;
+            };
+          }
+        }
+      };
 
-  // update props
-  if (propsData && vm.$options.props) {
-    toggleObserving(false);
-    var props = vm._props;
-    var propKeys = vm.$options._propKeys || [];
-    for (var i = 0; i < propKeys.length; i++) {
-      var key = propKeys[i];
-      var propOptions = vm.$options.props; // wtf flow?
-      props[key] = validateProp(key, propOptions, propsData, vm);
+      for (var key in value) loop( key );
     }
-    toggleObserving(true);
-    // keep a copy of raw propsData
-    vm.$options.propsData = propsData;
   }
+  return data
+}
 
-  // update listeners
-  listeners = listeners || emptyObject;
-  var oldListeners = vm.$options._parentListeners;
-  vm.$options._parentListeners = listeners;
-  updateComponentListeners(vm, listeners, oldListeners);
+/*  */
 
-  // resolve slots + force update if has children
-  if (needsForceUpdate) {
-    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
-    vm.$forceUpdate();
+/**
+ * Runtime helper for rendering static trees.
+ */
+function renderStatic (
+  index,
+  isInFor
+) {
+  var cached = this._staticTrees || (this._staticTrees = []);
+  var tree = cached[index];
+  // if has already-rendered static tree and not inside v-for,
+  // we can reuse the same tree.
+  if (tree && !isInFor) {
+    return tree
   }
+  // otherwise, render a fresh tree.
+  tree = cached[index] = this.$options.staticRenderFns[index].call(
+    this._renderProxy,
+    null,
+    this // for render fns generated for functional component templates
+  );
+  markStatic(tree, ("__static__" + index), false);
+  return tree
 }
 
-function isInInactiveTree (vm) {
-  while (vm && (vm = vm.$parent)) {
-    if (vm._inactive) { return true }
-  }
-  return false
+/**
+ * Runtime helper for v-once.
+ * Effectively it means marking the node as static with a unique key.
+ */
+function markOnce (
+  tree,
+  index,
+  key
+) {
+  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
+  return tree
 }
 
-function activateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = false;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  } else if (vm._directInactive) {
-    return
-  }
-  if (vm._inactive || vm._inactive === null) {
-    vm._inactive = false;
-    for (var i = 0; i < vm.$children.length; i++) {
-      activateChildComponent(vm.$children[i]);
+function markStatic (
+  tree,
+  key,
+  isOnce
+) {
+  if (Array.isArray(tree)) {
+    for (var i = 0; i < tree.length; i++) {
+      if (tree[i] && typeof tree[i] !== 'string') {
+        markStaticNode(tree[i], (key + "_" + i), isOnce);
+      }
     }
-    callHook(vm, 'activated');
+  } else {
+    markStaticNode(tree, key, isOnce);
   }
 }
 
-function deactivateChildComponent (vm, direct) {
-  if (direct) {
-    vm._directInactive = true;
-    if (isInInactiveTree(vm)) {
-      return
-    }
-  }
-  if (!vm._inactive) {
-    vm._inactive = true;
-    for (var i = 0; i < vm.$children.length; i++) {
-      deactivateChildComponent(vm.$children[i]);
+function markStaticNode (node, key, isOnce) {
+  node.isStatic = true;
+  node.key = key;
+  node.isOnce = isOnce;
+}
+
+/*  */
+
+function bindObjectListeners (data, value) {
+  if (value) {
+    if (!isPlainObject(value)) {
+      warn(
+        'v-on without argument expects an Object value',
+        this
+      );
+    } else {
+      var on = data.on = data.on ? extend({}, data.on) : {};
+      for (var key in value) {
+        var existing = on[key];
+        var ours = value[key];
+        on[key] = existing ? [].concat(existing, ours) : ours;
+      }
     }
-    callHook(vm, 'deactivated');
   }
+  return data
 }
 
-function callHook (vm, hook) {
-  // #7573 disable dep collection when invoking lifecycle hooks
-  pushTarget();
-  var handlers = vm.$options[hook];
-  var info = hook + " hook";
-  if (handlers) {
-    for (var i = 0, j = handlers.length; i < j; i++) {
-      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+/*  */
+
+function resolveScopedSlots (
+  fns, // see flow/vnode
+  hasDynamicKeys,
+  res
+) {
+  res = res || { $stable: !hasDynamicKeys };
+  for (var i = 0; i < fns.length; i++) {
+    var slot = fns[i];
+    if (Array.isArray(slot)) {
+      resolveScopedSlots(slot, hasDynamicKeys, res);
+    } else if (slot) {
+      res[slot.key] = slot.fn;
     }
   }
-  if (vm._hasHookEvent) {
-    vm.$emit('hook:' + hook);
-  }
-  popTarget();
+  return res
 }
 
 /*  */
 
-// Async edge case fix requires storing an event listener's attach timestamp.
-var getNow = Date.now;
-
-// Determine what event timestamp the browser is using. Annoyingly, the
-// timestamp can either be hi-res ( relative to poge load) or low-res
-// (relative to UNIX epoch), so in order to compare time we have to use the
-// same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
+function bindDynamicKeys (baseObj, values) {
+  for (var i = 0; i < values.length; i += 2) {
+    var key = values[i];
+    if (typeof key === 'string' && key) {
+      baseObj[values[i]] = values[i + 1];
+    } else if (key !== '' && key !== null) {
+      // null is a speical value for explicitly removing a binding
+      warn(
+        ("Invalid value for dynamic directive argument (expected string or null): " + key),
+        this
+      );
+    }
+  }
+  return baseObj
 }
 
-/**
- * Queue a kept-alive component that was activated during patch.
- * The queue will be processed after the entire tree has been patched.
- */
-function queueActivatedComponent (vm) {
-  // setting _inactive to false here so that a render function can
-  // rely on checking whether it's in an inactive tree (e.g. router-view)
-  vm._inactive = false;
+// helper to dynamically append modifier runtime markers to event names.
+// ensure only append when value is already string, otherwise it will be cast
+// to string and cause the type check to miss.
+function prependModifier (value, symbol) {
+  return typeof value === 'string' ? symbol + value : value
 }
 
 /*  */
 
-/*  */
+function installRenderHelpers (target) {
+  target._o = markOnce;
+  target._n = toNumber;
+  target._s = toString;
+  target._l = renderList;
+  target._t = renderSlot;
+  target._q = looseEqual;
+  target._i = looseIndexOf;
+  target._m = renderStatic;
+  target._f = resolveFilter;
+  target._k = checkKeyCodes;
+  target._b = bindObjectProps;
+  target._v = createTextVNode;
+  target._e = createEmptyVNode;
+  target._u = resolveScopedSlots;
+  target._g = bindObjectListeners;
+  target._d = bindDynamicKeys;
+  target._p = prependModifier;
+}
 
 /*  */
 
-var SIMPLE_NORMALIZE = 1;
-var ALWAYS_NORMALIZE = 2;
 
-// wrapper function for providing a more flexible interface
-// without getting yelled at by flow
-function createElement (
-  context,
-  tag,
-  data,
+
+/**
+ * Runtime helper for resolving raw children VNodes into a slot object.
+ */
+function resolveSlots (
   children,
-  normalizationType,
-  alwaysNormalize
+  context
 ) {
-  if (Array.isArray(data) || isPrimitive(data)) {
-    normalizationType = children;
-    children = data;
-    data = undefined;
+  if (!children || !children.length) {
+    return {}
   }
-  if (isTrue(alwaysNormalize)) {
-    normalizationType = ALWAYS_NORMALIZE;
+  var slots = {};
+  for (var i = 0, l = children.length; i < l; i++) {
+    var child = children[i];
+    var data = child.data;
+    // remove slot attribute if the node is resolved as a Vue slot node
+    if (data && data.attrs && data.attrs.slot) {
+      delete data.attrs.slot;
+    }
+    // named slots should only be respected if the vnode was rendered in the
+    // same context.
+    if ((child.context === context || child.fnContext === context) &&
+      data && data.slot != null
+    ) {
+      var name = data.slot;
+      var slot = (slots[name] || (slots[name] = []));
+      if (child.tag === 'template') {
+        slot.push.apply(slot, child.children || []);
+      } else {
+        slot.push(child);
+      }
+    } else {
+      (slots.default || (slots.default = [])).push(child);
+    }
   }
-  return _createElement(context, tag, data, children, normalizationType)
+  // ignore slots that contains only whitespace
+  for (var name$1 in slots) {
+    if (slots[name$1].every(isWhitespace)) {
+      delete slots[name$1];
+    }
+  }
+  return slots
 }
 
-function _createElement (
-  context,
-  tag,
-  data,
-  children,
-  normalizationType
-) {
-  if (isDef(data) && isDef((data).__ob__)) {
-    warn(
-      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
-      'Always create fresh vnode data objects in each render!',
-      context
-    );
-    return createEmptyVNode()
-  }
-  // object syntax in v-bind
-  if (isDef(data) && isDef(data.is)) {
-    tag = data.is;
-  }
-  if (!tag) {
-    // in case of component :is set to falsy value
-    return createEmptyVNode()
-  }
-  // warn against non-primitive key
-  if (isDef(data) && isDef(data.key) && !isPrimitive(data.key)
-  ) {
-    {
-      warn(
-        'Avoid using non-primitive value as key, ' +
-        'use string/number value instead.',
-        context
-      );
-    }
-  }
-  // support single function children as default scoped slot
-  if (Array.isArray(children) &&
-    typeof children[0] === 'function'
-  ) {
-    data = data || {};
-    data.scopedSlots = { default: children[0] };
-    children.length = 0;
-  }
-  if (normalizationType === ALWAYS_NORMALIZE) {
-    children = normalizeChildren(children);
-  } else if (normalizationType === SIMPLE_NORMALIZE) {
-    children = simpleNormalizeChildren(children);
-  }
-  var vnode, ns;
-  if (typeof tag === 'string') {
-    var Ctor;
-    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);
-    if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {
-      // component
-      vnode = createComponent(Ctor, data, context, children, tag);
-    } else {
-      // unknown or unlisted namespaced elements
-      // check at runtime because it may get assigned a namespace when its
-      // parent normalizes children
-      vnode = new VNode(
-        tag, data, children,
-        undefined, undefined, context
-      );
-    }
-  } else {
-    // direct component options / constructor
-    vnode = createComponent(tag, data, context, children);
-  }
-  if (Array.isArray(vnode)) {
-    return vnode
-  } else if (isDef(vnode)) {
-    if (isDef(ns)) { applyNS(vnode, ns); }
-    if (isDef(data)) { registerDeepBindings(data); }
-    return vnode
-  } else {
-    return createEmptyVNode()
-  }
-}
-
-function applyNS (vnode, ns, force) {
-  vnode.ns = ns;
-  if (vnode.tag === 'foreignObject') {
-    // use default namespace inside foreignObject
-    ns = undefined;
-    force = true;
-  }
-  if (isDef(vnode.children)) {
-    for (var i = 0, l = vnode.children.length; i < l; i++) {
-      var child = vnode.children[i];
-      if (isDef(child.tag) && (
-        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {
-        applyNS(child, ns, force);
-      }
-    }
-  }
-}
-
-// ref #5318
-// necessary to ensure parent re-render when deep bindings like :style and
-// :class are used on slot nodes
-function registerDeepBindings (data) {
-  if (isObject(data.style)) {
-    traverse(data.style);
-  }
-  if (isObject(data.class)) {
-    traverse(data.class);
-  }
+function isWhitespace (node) {
+  return (node.isComment && !node.asyncFactory) || node.text === ' '
 }
 
 /*  */
 
-/**
- * Runtime helper for rendering v-for lists.
- */
-function renderList (
-  val,
-  render
+function normalizeScopedSlots (
+  slots,
+  normalSlots
 ) {
-  var ret, i, l, keys, key;
-  if (Array.isArray(val) || typeof val === 'string') {
-    ret = new Array(val.length);
-    for (i = 0, l = val.length; i < l; i++) {
-      ret[i] = render(val[i], i);
-    }
-  } else if (typeof val === 'number') {
-    ret = new Array(val);
-    for (i = 0; i < val; i++) {
-      ret[i] = render(i + 1, i);
-    }
-  } else if (isObject(val)) {
-    if (hasSymbol && val[Symbol.iterator]) {
-      ret = [];
-      var iterator = val[Symbol.iterator]();
-      var result = iterator.next();
-      while (!result.done) {
-        ret.push(render(result.value, ret.length));
-        result = iterator.next();
-      }
-    } else {
-      keys = Object.keys(val);
-      ret = new Array(keys.length);
-      for (i = 0, l = keys.length; i < l; i++) {
-        key = keys[i];
-        ret[i] = render(val[key], key, i);
+  var res;
+  if (!slots) {
+    res = {};
+  } else if (slots._normalized) {
+    return slots
+  } else {
+    res = {};
+    for (var key in slots) {
+      if (slots[key] && key[0] !== '$') {
+        res[key] = normalizeScopedSlot(slots[key]);
       }
     }
   }
-  if (!isDef(ret)) {
-    ret = [];
+  // expose normal slots on scopedSlots
+  for (var key$1 in normalSlots) {
+    if (!(key$1 in res)) {
+      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    }
   }
-  (ret)._isVList = true;
-  return ret
+  def(res, '_normalized', true);
+  def(res, '$stable', slots ? !!slots.$stable : true);
+  return res
 }
 
-/*  */
-
-/**
- * Runtime helper for rendering <slot>
- */
-function renderSlot (
-  name,
-  fallback,
-  props,
-  bindObject
-) {
-  var scopedSlotFn = this.$scopedSlots[name];
-  var nodes;
-  if (scopedSlotFn) { // scoped slot
-    props = props || {};
-    if (bindObject) {
-      if (!isObject(bindObject)) {
-        warn(
-          'slot v-bind without argument expects an Object',
-          this
-        );
-      }
-      props = extend(extend({}, bindObject), props);
-    }
-    nodes = scopedSlotFn(props) || fallback;
-  } else {
-    nodes = this.$slots[name] || fallback;
+function normalizeScopedSlot(fn) {
+  return function (scope) {
+    var res = fn(scope);
+    return res && typeof res === 'object' && !Array.isArray(res)
+      ? [res] // single vnode
+      : normalizeChildren(res)
   }
+}
 
-  var target = props && props.slot;
-  if (target) {
-    return this.$createElement('template', { slot: target }, nodes)
-  } else {
-    return nodes
-  }
+function proxyNormalSlot(slots, key) {
+  return function () { return slots[key]; }
 }
 
 /*  */
 
-/**
- * Runtime helper for resolving filters
- */
-function resolveFilter (id) {
-  return resolveAsset(this.$options, 'filters', id, true) || identity
-}
+var currentRenderingInstance = null;
 
 /*  */
 
-function isKeyNotMatch (expect, actual) {
-  if (Array.isArray(expect)) {
-    return expect.indexOf(actual) === -1
-  } else {
-    return expect !== actual
+function ensureCtor (comp, base) {
+  if (
+    comp.__esModule ||
+    (hasSymbol && comp[Symbol.toStringTag] === 'Module')
+  ) {
+    comp = comp.default;
   }
+  return isObject(comp)
+    ? base.extend(comp)
+    : comp
 }
 
-/**
- * Runtime helper for checking keyCodes from config.
- * exposed as Vue.prototype._k
- * passing in eventKeyName as last argument separately for backwards compat
- */
-function checkKeyCodes (
-  eventKeyCode,
-  key,
-  builtInKeyCode,
-  eventKeyName,
-  builtInKeyName
+function createAsyncPlaceholder (
+  factory,
+  data,
+  context,
+  children,
+  tag
 ) {
-  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;
-  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {
-    return isKeyNotMatch(builtInKeyName, eventKeyName)
-  } else if (mappedKeyCode) {
-    return isKeyNotMatch(mappedKeyCode, eventKeyCode)
-  } else if (eventKeyName) {
-    return hyphenate(eventKeyName) !== key
-  }
+  var node = createEmptyVNode();
+  node.asyncFactory = factory;
+  node.asyncMeta = { data: data, context: context, children: children, tag: tag };
+  return node
 }
 
-/*  */
-
-/**
- * Runtime helper for merging v-bind="object" into a VNode's data.
- */
-function bindObjectProps (
-  data,
-  tag,
-  value,
-  asProp,
-  isSync
+function resolveAsyncComponent (
+  factory,
+  baseCtor
 ) {
-  if (value) {
-    if (!isObject(value)) {
+  if (isTrue(factory.error) && isDef(factory.errorComp)) {
+    return factory.errorComp
+  }
+
+  if (isDef(factory.resolved)) {
+    return factory.resolved
+  }
+
+  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
+    return factory.loadingComp
+  }
+
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners)) {
+    // already pending
+    factory.owners.push(owner);
+  } else {
+    var owners = factory.owners = [owner];
+    var sync = true;
+
+    var forceRender = function (renderCompleted) {
+      for (var i = 0, l = owners.length; i < l; i++) {
+        (owners[i]).$forceUpdate();
+      }
+
+      if (renderCompleted) {
+        owners.length = 0;
+      }
+    };
+
+    var resolve = once(function (res) {
+      // cache resolved
+      factory.resolved = ensureCtor(res, baseCtor);
+      // invoke callbacks only if this is not a synchronous resolve
+      // (async resolves are shimmed as synchronous during SSR)
+      if (!sync) {
+        forceRender(true);
+      } else {
+        owners.length = 0;
+      }
+    });
+
+    var reject = once(function (reason) {
       warn(
-        'v-bind without argument expects an Object or Array value',
-        this
+        "Failed to resolve async component: " + (String(factory)) +
+        (reason ? ("\nReason: " + reason) : '')
       );
-    } else {
-      if (Array.isArray(value)) {
-        value = toObject(value);
+      if (isDef(factory.errorComp)) {
+        factory.error = true;
+        forceRender(true);
       }
-      var hash;
-      var loop = function ( key ) {
-        if (
-          key === 'class' ||
-          key === 'style' ||
-          isReservedAttribute(key)
-        ) {
-          hash = data;
-        } else {
-          var type = data.attrs && data.attrs.type;
-          hash = asProp || config.mustUseProp(tag, type, key)
-            ? data.domProps || (data.domProps = {})
-            : data.attrs || (data.attrs = {});
-        }
-        var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
-          hash[key] = value[key];
-
-          if (isSync) {
-            var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
-              value[key] = $event;
-            };
-          }
-        }
-      };
+    });
 
-      for (var key in value) loop( key );
-    }
-  }
-  return data
-}
+    var res = factory(resolve, reject);
 
-/*  */
+    if (isObject(res)) {
+      if (isPromise(res)) {
+        // () => Promise
+        if (isUndef(factory.resolved)) {
+          res.then(resolve, reject);
+        }
+      } else if (isPromise(res.component)) {
+        res.component.then(resolve, reject);
 
-/**
- * Runtime helper for rendering static trees.
- */
-function renderStatic (
-  index,
-  isInFor
-) {
-  var cached = this._staticTrees || (this._staticTrees = []);
-  var tree = cached[index];
-  // if has already-rendered static tree and not inside v-for,
-  // we can reuse the same tree.
-  if (tree && !isInFor) {
-    return tree
-  }
-  // otherwise, render a fresh tree.
-  tree = cached[index] = this.$options.staticRenderFns[index].call(
-    this._renderProxy,
-    null,
-    this // for render fns generated for functional component templates
-  );
-  markStatic(tree, ("__static__" + index), false);
-  return tree
-}
+        if (isDef(res.error)) {
+          factory.errorComp = ensureCtor(res.error, baseCtor);
+        }
 
-/**
- * Runtime helper for v-once.
- * Effectively it means marking the node as static with a unique key.
- */
-function markOnce (
-  tree,
-  index,
-  key
-) {
-  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
-  return tree
-}
+        if (isDef(res.loading)) {
+          factory.loadingComp = ensureCtor(res.loading, baseCtor);
+          if (res.delay === 0) {
+            factory.loading = true;
+          } else {
+            setTimeout(function () {
+              if (isUndef(factory.resolved) && isUndef(factory.error)) {
+                factory.loading = true;
+                forceRender(false);
+              }
+            }, res.delay || 200);
+          }
+        }
 
-function markStatic (
-  tree,
-  key,
-  isOnce
-) {
-  if (Array.isArray(tree)) {
-    for (var i = 0; i < tree.length; i++) {
-      if (tree[i] && typeof tree[i] !== 'string') {
-        markStaticNode(tree[i], (key + "_" + i), isOnce);
+        if (isDef(res.timeout)) {
+          setTimeout(function () {
+            if (isUndef(factory.resolved)) {
+              reject(
+                "timeout (" + (res.timeout) + "ms)"
+              );
+            }
+          }, res.timeout);
+        }
       }
     }
-  } else {
-    markStaticNode(tree, key, isOnce);
+
+    sync = false;
+    // return in case resolved synchronously
+    return factory.loading
+      ? factory.loadingComp
+      : factory.resolved
   }
 }
 
-function markStaticNode (node, key, isOnce) {
-  node.isStatic = true;
-  node.key = key;
-  node.isOnce = isOnce;
-}
+/*  */
 
 /*  */
 
-function bindObjectListeners (data, value) {
-  if (value) {
-    if (!isPlainObject(value)) {
-      warn(
-        'v-on without argument expects an Object value',
-        this
-      );
-    } else {
-      var on = data.on = data.on ? extend({}, data.on) : {};
-      for (var key in value) {
-        var existing = on[key];
-        var ours = value[key];
-        on[key] = existing ? [].concat(existing, ours) : ours;
-      }
-    }
-  }
-  return data
-}
+/*  */
 
 /*  */
 
-function bindDynamicKeys (baseObj, values) {
-  for (var i = 0; i < values.length; i += 2) {
-    var key = values[i];
-    if (typeof key === 'string' && key) {
-      baseObj[values[i]] = values[i + 1];
-    } else if (key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
-      warn(
-        ("Invalid value for dynamic directive argument (expected string or null): " + key),
-        this
-      );
+var target;
+
+function add (event, fn) {
+  target.$on(event, fn);
+}
+
+function remove$1 (event, fn) {
+  target.$off(event, fn);
+}
+
+function createOnceHandler (event, fn) {
+  var _target = target;
+  return function onceHandler () {
+    var res = fn.apply(null, arguments);
+    if (res !== null) {
+      _target.$off(event, onceHandler);
     }
   }
-  return baseObj
 }
 
-// helper to dynamically append modifier runtime markers to event names.
-// ensure only append when value is already string, otherwise it will be cast
-// to string and cause the type check to miss.
-function prependModifier (value, symbol) {
-  return typeof value === 'string' ? symbol + value : value
+function updateComponentListeners (
+  vm,
+  listeners,
+  oldListeners
+) {
+  target = vm;
+  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);
+  target = undefined;
 }
 
 /*  */
 
-function installRenderHelpers (target) {
-  target._o = markOnce;
-  target._n = toNumber;
-  target._s = toString;
-  target._l = renderList;
-  target._t = renderSlot;
-  target._q = looseEqual;
-  target._i = looseIndexOf;
-  target._m = renderStatic;
-  target._f = resolveFilter;
-  target._k = checkKeyCodes;
-  target._b = bindObjectProps;
-  target._v = createTextVNode;
-  target._e = createEmptyVNode;
-  target._u = resolveScopedSlots;
-  target._g = bindObjectListeners;
-  target._d = bindDynamicKeys;
-  target._p = prependModifier;
+var activeInstance = null;
+
+function updateChildComponent (
+  vm,
+  propsData,
+  listeners,
+  parentVnode,
+  renderChildren
+) {
+
+  // determine whether component has slot children
+  // we need to do this before overwriting $options._renderChildren.
+
+  // check if there are dynamic scopedSlots (hand-written or compiled but with
+  // dynamic slot names). Static scoped slots compiled from template has the
+  // "$stable" marker.
+  var hasDynamicScopedSlot = !!(
+    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
+    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+  );
+
+  // Any static slot children from the parent may have changed during parent's
+  // update. Dynamic scoped slots may also have changed. In such cases, a forced
+  // update is necessary to ensure correctness.
+  var needsForceUpdate = !!(
+    renderChildren ||               // has new static slots
+    vm.$options._renderChildren ||  // has old static slots
+    hasDynamicScopedSlot
+  );
+
+  vm.$options._parentVnode = parentVnode;
+  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
+
+  if (vm._vnode) { // update child tree's parent
+    vm._vnode.parent = parentVnode;
+  }
+  vm.$options._renderChildren = renderChildren;
+
+  // update $attrs and $listeners hash
+  // these are also reactive so they may trigger child update if the child
+  // used them during render
+  vm.$attrs = parentVnode.data.attrs || emptyObject;
+  vm.$listeners = listeners || emptyObject;
+
+  // update props
+  if (propsData && vm.$options.props) {
+    toggleObserving(false);
+    var props = vm._props;
+    var propKeys = vm.$options._propKeys || [];
+    for (var i = 0; i < propKeys.length; i++) {
+      var key = propKeys[i];
+      var propOptions = vm.$options.props; // wtf flow?
+      props[key] = validateProp(key, propOptions, propsData, vm);
+    }
+    toggleObserving(true);
+    // keep a copy of raw propsData
+    vm.$options.propsData = propsData;
+  }
+
+  // update listeners
+  listeners = listeners || emptyObject;
+  var oldListeners = vm.$options._parentListeners;
+  vm.$options._parentListeners = listeners;
+  updateComponentListeners(vm, listeners, oldListeners);
+
+  // resolve slots + force update if has children
+  if (needsForceUpdate) {
+    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
+    vm.$forceUpdate();
+  }
 }
 
-/*  */
+function isInInactiveTree (vm) {
+  while (vm && (vm = vm.$parent)) {
+    if (vm._inactive) { return true }
+  }
+  return false
+}
 
-function normalizeScopedSlots (
-  slots,
-  normalSlots
-) {
-  var res;
-  if (!slots) {
-    res = {};
-  } else if (slots._normalized) {
-    return slots
-  } else {
-    res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
-      }
+function activateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = false;
+    if (isInInactiveTree(vm)) {
+      return
     }
+  } else if (vm._directInactive) {
+    return
   }
-  // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+  if (vm._inactive || vm._inactive === null) {
+    vm._inactive = false;
+    for (var i = 0; i < vm.$children.length; i++) {
+      activateChildComponent(vm.$children[i]);
     }
+    callHook(vm, 'activated');
   }
-  res._normalized = true;
-  res.$stable = slots ? slots.$stable : true;
-  return res
 }
 
-function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    if ( scope === void 0 ) scope = {};
+function deactivateChildComponent (vm, direct) {
+  if (direct) {
+    vm._directInactive = true;
+    if (isInInactiveTree(vm)) {
+      return
+    }
+  }
+  if (!vm._inactive) {
+    vm._inactive = true;
+    for (var i = 0; i < vm.$children.length; i++) {
+      deactivateChildComponent(vm.$children[i]);
+    }
+    callHook(vm, 'deactivated');
+  }
+}
 
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
-      ? [res] // single vnode
-      : normalizeChildren(res)
-  };
-  // proxy scoped slots on normal $slots
-  if (!hasOwn(normalSlots, key)) {
-    Object.defineProperty(normalSlots, key, {
-      get: normalized
-    });
+function callHook (vm, hook) {
+  // #7573 disable dep collection when invoking lifecycle hooks
+  pushTarget();
+  var handlers = vm.$options[hook];
+  var info = hook + " hook";
+  if (handlers) {
+    for (var i = 0, j = handlers.length; i < j; i++) {
+      invokeWithErrorHandling(handlers[i], vm, null, vm, info);
+    }
+  }
+  if (vm._hasHookEvent) {
+    vm.$emit('hook:' + hook);
   }
-  return normalized
+  popTarget();
 }
 
-function proxyNormalSlot(slots, key) {
-  return function () { return slots[key]; }
+/*  */
+
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
+
+// Determine what event timestamp the browser is using. Annoyingly, the
+// timestamp can either be hi-res (relative to page load) or low-res
+// (relative to UNIX epoch), so in order to compare time we have to use the
+// same timestamp type when saving the flush timestamp.
+if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
+  // if the low-res timestamp which is bigger than the event timestamp
+  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
+  // and we need to use the hi-res version for event listeners as well.
+  getNow = function () { return performance.now(); };
+}
+
+/**
+ * Queue a kept-alive component that was activated during patch.
+ * The queue will be processed after the entire tree has been patched.
+ */
+function queueActivatedComponent (vm) {
+  // setting _inactive to false here so that a render function can
+  // rely on checking whether it's in an inactive tree (e.g. router-view)
+  vm._inactive = false;
 }
 
 /*  */
 
 /*  */
 
+/*  */
+
 function resolveInject (inject, vm) {
   if (inject) {
     // inject is :any because flow is not smart enough to figure out cached
@@ -7901,7 +7933,7 @@ function createComponent (
   var asyncFactory;
   if (isUndef(Ctor.cid)) {
     asyncFactory = Ctor;
-    Ctor = resolveAsyncComponent(asyncFactory, baseCtor, context);
+    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);
     if (Ctor === undefined) {
       // return a placeholder node for async component, which is rendered
       // as a comment node but preserves all the raw information for the node.
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index d09674532fb..386b3c2c98e 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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v=l+"::"+d,h=r.has,m=r.get;i(h)?h(v,function(n){!0===n&&i(m)?m(v,function(e){i(p)&&p(s),e.components.forEach(function(e){return e(s)}),o(e.html,a)}):Qi(e,t,v,r)}):i(m)&&m(v,function(n){i(n)?(i(p)&&p(s),n.components.forEach(function(e){return e(s)}),o(n.html,a)):Qi(e,t,v,r)})}else i(u)&&n(f)&&Hi("[vue-server-renderer] Component "+(c.options.name||"(anonymous)")+" implemented serverCacheKey, but no cache was provided to the renderer."),i(u)&&n(l)&&Hi('[vue-server-renderer] Components that implement "serverCacheKey" must also define a unique "name" option.'),Yi(e,t,r)}function Qi(e,t,r,n){var i=n.write;i.caching=!0;var o=i.cacheBuffer,a=o.push("")-1,s=i.componentBuffer;s.push(new Set),n.renderStates.push({type:"ComponentWithCache",key:r,buffer:o,bufferIndex:a,componentBuffer:s}),Yi(e,t,n)}function Yi(e,t,r){var n=r.activeInstance;e.ssrContext=r.userContext;var i=r.activeInstance=Bi(e,r.activeInstance);Vi(i);var o=r.done;Wi(i,function(){var 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e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype._transform=function(e,t,r){this.started||(this.emit("beforeStart"),this.start()),this.push(e),r()},t.prototype.start=function(){if(this.started=!0,this.push(this.template.head(this.context)),this.inject){this.context.head&&this.push(this.context.head);var e=this.renderer.renderResourceHints(this.context);e&&this.push(e);var t=this.renderer.renderStyles(this.context);t&&this.push(t)}this.push(this.template.neck(this.context))},t.prototype._flush=function(e){if(this.emit("beforeEnd"),this.inject){var t=this.renderer.renderState(this.context);t&&this.push(t);var r=this.renderer.renderScripts(this.context);r&&this.push(r)}this.push(this.template.tail(this.context)),e()},t}(require("stream").Transform),io=require("lodash.template"),oo={escape:/{{([^{][\s\S]+?[^}])}}/g,interpolate:/{{{([\s\S]+?)}}}/g};function ao(e){var t=function(e){var t=new Map;return Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.js($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var so=require("path"),co=require("serialize-javascript"),uo=function(e){this.options=e,this.inject=!1!==e.inject;var t=e.template;if(this.parsedTemplate=t?"string"==typeof t?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:io(e.slice(0,r),oo),neck:io(e.slice(r,n),oo),tail:io(e.slice(n+t.length),oo)}}(t):t:null,this.serialize=e.serializer||function(e){return co(e,{isJSON:!0})},e.clientManifest){var r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(lo),this.prefetchFiles=(r.async||[]).map(lo),this.mapFiles=ao(r)}};function lo(e){var t=e.replace(/\?.*/,""),r=so.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:fo(r)}}function fo(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}uo.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},uo.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},uo.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},uo.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},uo.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},uo.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},uo.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},uo.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},uo.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return to(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return to(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},uo.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(lo)}return e._mappedFiles},uo.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new no(this,this.parsedTemplate,e||{})};var po=require("vm"),vo=require("path"),ho=require("resolve"),mo=require("module");function yo(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function go(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=mo.wrap(r),o=new po.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=vo.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=ho.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function bo(e,t,r,n){var i,o,a=go(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,yo(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?yo():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var _o=require("source-map").SourceMapConsumer,wo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function xo(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(wo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(wo,c)}return e}return e}(e,t)}).join("\n"))}var So=require("fs"),$o=require("path"),Ao=require("stream").PassThrough,Oo="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function ko(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=eo(t,r,n,a),p=new uo({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=ro()).promise,r=n.cb);var a="",s=ht(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new mt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ut,canBeLeftOpenTag:lt,modules:ot,directives:$(ct,e.directives)}))}process.env.VUE_ENV="server";var Co=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&$o.isAbsolute(t)){if(!So.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||$o.dirname(t),t=So.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new _o(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(Oo)}else{if("string"!=typeof t)throw new Error(Oo);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=bo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=ro()).promise,t=r.cb),u(e).catch(function(e){xo(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){xo(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Ao;return u(e).catch(function(e){xo(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){xo(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(ko);exports.createRenderer=ko,exports.createBundleRenderer=Co;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 896cbdde5be..297e9ccd30d 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.2",
+  "version": "2.6.3",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 96dc736ad75..77f6de7b71c 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -745,6 +745,7 @@
   var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
   var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
   var isPhantomJS = UA && /phantomjs/.test(UA);
+  var isFF = UA && UA.match(/firefox\/(\d+)/);
 
   // Firefox has a "watch" function on Object.prototype...
   var nativeWatch = ({}).watch;
@@ -2747,6 +2748,8 @@
 
   var decodeHTMLCached = cached(he.decode);
 
+  var emptySlotScopeToken = "_empty_";
+
   // configurable state
   var warn$1;
   var delimiters;
@@ -3359,7 +3362,7 @@
           var dynamic = ref.dynamic;
           el.slotTarget = name;
           el.slotTargetDynamic = dynamic;
-          el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+          el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
         }
       } else {
         // v-slot on component, denotes default slot
@@ -3394,8 +3397,13 @@
           var slotContainer = slots[name$1] = createASTElement('template', [], el);
           slotContainer.slotTarget = name$1;
           slotContainer.slotTargetDynamic = dynamic$1;
-          slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
-          slotContainer.slotScope = slotBinding$1.value || "_";
+          slotContainer.children = el.children.filter(function (c) {
+            if (!c.slotScope) {
+              c.parent = slotContainer;
+              return true
+            }
+          });
+          slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
           // remove children as they are returned from scopedSlots now
           el.children = [];
           // mark el non-plain so data gets generated
@@ -4490,7 +4498,7 @@
     }
     // scoped slots
     if (el.scopedSlots) {
-      data += (genScopedSlots(el.scopedSlots, state)) + ",";
+      data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
     }
     // component v-model
     if (el.model) {
@@ -4561,16 +4569,34 @@
   }
 
   function genScopedSlots (
+    el,
     slots,
     state
   ) {
-    var hasDynamicKeys = Object.keys(slots).some(function (key) {
+    // by default scoped slots are considered "stable", this allows child
+    // components with only scoped slots to skip forced updates from parent.
+    // but in some cases we have to bail-out of this optimization
+    // for example if the slot contains dynamic names, has v-if or v-for on them...
+    var needsForceUpdate = Object.keys(slots).some(function (key) {
       var slot = slots[key];
       return slot.slotTargetDynamic || slot.if || slot.for
     });
+    // OR when it is inside another scoped slot (the reactivity is disconnected)
+    // #9438
+    if (!needsForceUpdate) {
+      var parent = el.parent;
+      while (parent) {
+        if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+          needsForceUpdate = true;
+          break
+        }
+        parent = parent.parent;
+      }
+    }
+
     return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
         return genScopedSlot(slots[key], state)
-      }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+      }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
   }
 
   function genScopedSlot (
@@ -4584,7 +4610,10 @@
     if (el.for && !el.forProcessed) {
       return genFor(el, state, genScopedSlot)
     }
-    var fn = "function(" + (String(el.slotScope)) + "){" +
+    var slotScope = el.slotScope === emptySlotScopeToken
+      ? ""
+      : String(el.slotScope);
+    var fn = "function(" + slotScope + "){" +
       "return " + (el.tag === 'template'
         ? el.if && isLegacySyntax
           ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
@@ -4677,7 +4706,14 @@
     var slotName = el.slotName || '"default"';
     var children = genChildren(el, state);
     var res = "_t(" + slotName + (children ? ("," + children) : '');
-    var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+    var attrs = el.attrs || el.dynamicAttrs
+      ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
+          // slot props are camelized
+          name: camelize(attr.name),
+          value: attr.value,
+          dynamic: attr.dynamic
+        }); }))
+      : null;
     var bind$$1 = el.attrsMap['v-bind'];
     if ((attrs || bind$$1) && !children) {
       res += ",null";
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index cdb1aef88e8..570a0d632bc 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -703,6 +703,7 @@ var isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android'
 var isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');
 var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
 var isPhantomJS = UA && /phantomjs/.test(UA);
+var isFF = UA && UA.match(/firefox\/(\d+)/);
 
 // Firefox has a "watch" function on Object.prototype...
 var nativeWatch = ({}).watch;
@@ -2367,6 +2368,8 @@ var invalidAttributeRE = /[\s"'<>\/=]/;
 
 var decodeHTMLCached = cached(he.decode);
 
+var emptySlotScopeToken = "_empty_";
+
 // configurable state
 var warn$1;
 var delimiters;
@@ -2979,7 +2982,7 @@ function processSlotContent (el) {
         var dynamic = ref.dynamic;
         el.slotTarget = name;
         el.slotTargetDynamic = dynamic;
-        el.slotScope = slotBinding.value || "_"; // force it into a scoped slot for perf
+        el.slotScope = slotBinding.value || emptySlotScopeToken; // force it into a scoped slot for perf
       }
     } else {
       // v-slot on component, denotes default slot
@@ -3014,8 +3017,13 @@ function processSlotContent (el) {
         var slotContainer = slots[name$1] = createASTElement('template', [], el);
         slotContainer.slotTarget = name$1;
         slotContainer.slotTargetDynamic = dynamic$1;
-        slotContainer.children = el.children.filter(function (c) { return !(c).slotScope; });
-        slotContainer.slotScope = slotBinding$1.value || "_";
+        slotContainer.children = el.children.filter(function (c) {
+          if (!c.slotScope) {
+            c.parent = slotContainer;
+            return true
+          }
+        });
+        slotContainer.slotScope = slotBinding$1.value || emptySlotScopeToken;
         // remove children as they are returned from scopedSlots now
         el.children = [];
         // mark el non-plain so data gets generated
@@ -4121,7 +4129,7 @@ function genData$2 (el, state) {
   }
   // scoped slots
   if (el.scopedSlots) {
-    data += (genScopedSlots(el.scopedSlots, state)) + ",";
+    data += (genScopedSlots(el, el.scopedSlots, state)) + ",";
   }
   // component v-model
   if (el.model) {
@@ -4194,16 +4202,34 @@ function genInlineTemplate (el, state) {
 }
 
 function genScopedSlots (
+  el,
   slots,
   state
 ) {
-  var hasDynamicKeys = Object.keys(slots).some(function (key) {
+  // by default scoped slots are considered "stable", this allows child
+  // components with only scoped slots to skip forced updates from parent.
+  // but in some cases we have to bail-out of this optimization
+  // for example if the slot contains dynamic names, has v-if or v-for on them...
+  var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return slot.slotTargetDynamic || slot.if || slot.for
   });
+  // OR when it is inside another scoped slot (the reactivity is disconnected)
+  // #9438
+  if (!needsForceUpdate) {
+    var parent = el.parent;
+    while (parent) {
+      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        needsForceUpdate = true;
+        break
+      }
+      parent = parent.parent;
+    }
+  }
+
   return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
       return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (hasDynamicKeys ? ",true" : "") + ")")
+    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
 function genScopedSlot (
@@ -4217,7 +4243,10 @@ function genScopedSlot (
   if (el.for && !el.forProcessed) {
     return genFor(el, state, genScopedSlot)
   }
-  var fn = "function(" + (String(el.slotScope)) + "){" +
+  var slotScope = el.slotScope === emptySlotScopeToken
+    ? ""
+    : String(el.slotScope);
+  var fn = "function(" + slotScope + "){" +
     "return " + (el.tag === 'template'
       ? el.if && isLegacySyntax
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
@@ -4310,7 +4339,14 @@ function genSlot (el, state) {
   var slotName = el.slotName || '"default"';
   var children = genChildren(el, state);
   var res = "_t(" + slotName + (children ? ("," + children) : '');
-  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
+  var attrs = el.attrs || el.dynamicAttrs
+    ? genProps((el.attrs || []).concat(el.dynamicAttrs || []).map(function (attr) { return ({
+        // slot props are camelized
+        name: camelize(attr.name),
+        value: attr.value,
+        dynamic: attr.dynamic
+      }); }))
+    : null;
   var bind$$1 = el.attrsMap['v-bind'];
   if ((attrs || bind$$1) && !children) {
     res += ",null";
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index c9f69208b14..7d0354a9e85 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.2",
+  "version": "2.6.3",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From f9c83087cc73697300c4587283f197d84065d4ae Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 6 Feb 2019 16:52:07 -0500
Subject: [PATCH 796/911] build: release 2.6.3

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 4eab1164f76..7f52b62e2ca 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.2",
+  "version": "2.6.3",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 4015debe951c6b022dee5fc16869561b6c9981b4 Mon Sep 17 00:00:00 2001
From: JakeConnors376W <46732192+JakeConnors376W@users.noreply.github.com>
Date: Wed, 6 Feb 2019 16:52:06 -0800
Subject: [PATCH 797/911] chore: make documentation clearer (#9450)

---
 .github/CONTRIBUTING.md | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 38d9618e4a9..7a01d7b58cd 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -1,6 +1,6 @@
 # Vue.js Contributing Guide
 
-Hi! I’m really excited that you are interested in contributing to Vue.js. Before submitting your contribution though, please make sure to take a moment and read through the following guidelines.
+Hi! I'm really excited that you are interested in contributing to Vue.js. Before submitting your contribution, please make sure to take a moment and read through the following guidelines:
 
 - [Code of Conduct](https://github.com/vuejs/vue/blob/dev/.github/CODE_OF_CONDUCT.md)
 - [Issue Reporting Guidelines](#issue-reporting-guidelines)
@@ -14,28 +14,28 @@ Hi! I’m really excited that you are interested in contributing to Vue.js. Befo
 
 ## Pull Request Guidelines
 
-- The `master` branch is basically just a snapshot of the latest stable release. All development should be done in dedicated branches. **Do not submit PRs against the `master` branch.**
+- The `master` branch is just a snapshot of the latest stable release. All development should be done in dedicated branches. **Do not submit PRs against the `master` branch.**
 
 - Checkout a topic branch from the relevant branch, e.g. `dev`, and merge back against that branch.
 
 - Work in the `src` folder and **DO NOT** checkin `dist` in the commits.
 
-- It's OK to have multiple small commits as you work on the PR - we will let GitHub automatically squash it before merging.
+- It's OK to have multiple small commits as you work on the PR - GitHub will automatically squash it before merging.
 
 - Make sure `npm test` passes. (see [development setup](#development-setup))
 
 - If adding new feature:
   - Add accompanying test case.
-  - Provide convincing reason to add this feature. Ideally you should open a suggestion issue first and have it greenlighted before working on it.
+  - Provide convincing reason to add this feature. Ideally, you should open a suggestion issue first and have it approved before working on it.
 
-- If fixing a bug:
-  - If you are resolving a special issue, add `(fix #xxxx[,#xxx])` (#xxxx is the issue id) in your PR title for a better release log, e.g. `update entities encoding/decoding (fix #3899)`.
+- If fixing bug:
+  - If you are resolving a special issue, add `(fix #xxxx[,#xxxx])` (#xxxx is the issue id) in your PR title for a better release log, e.g. `update entities encoding/decoding (fix #3899)`.
   - Provide detailed description of the bug in the PR. Live demo preferred.
   - Add appropriate test coverage if applicable.
 
 ## Development Setup
 
-You will need [Node.js](http://nodejs.org) **version 6+** and [Java Runtime Environment](http://www.oracle.com/technetwork/java/javase/downloads/index.html) (needed for running Selenium server during e2e tests).
+You will need [Node.js](http://nodejs.org) **version 6+** and [Java Runtime Environment](http://www.oracle.com/technetwork/java/javase/downloads/index.html) (for running Selenium server during e2e tests).
 
 After cloning the repo, run:
 
@@ -65,11 +65,11 @@ $ npm test
 
 There are some other scripts available in the `scripts` section of the `package.json` file.
 
-The default test script will do the following: lint with ESLint -> type check with Flow -> unit tests with coverage -> e2e tests. **Please make sure to have this pass successfully before submitting a PR.** Although the same tests will be run against your PR on the CI server, it is better to have it working locally beforehand.
+The default test script will do the following: lint with ESLint -> type check with Flow -> unit tests with coverage -> e2e tests. **Please make sure to have this pass successfully before submitting a PR.** Although the same tests will be run against your PR on the CI server, it is better to have it working locally.
 
 ## Project Structure
 
-- **`scripts`**: contains build-related scripts and configuration files. In most cases you don't need to touch them. However, it would be helpful to familiarize yourself with the following files:
+- **`scripts`**: contains build-related scripts and configuration files. Usually, you don't need to touch them. However, it would be helpful to familiarize yourself with the following files:
 
   - `scripts/alias.js`: module import aliases used across all source code and tests.
 
@@ -85,15 +85,15 @@ The default test script will do the following: lint with ESLint -> type check wi
 
 - **`test`**: contains all tests. The unit tests are written with [Jasmine](http://jasmine.github.io/2.3/introduction.html) and run with [Karma](http://karma-runner.github.io/0.13/index.html). The e2e tests are written for and run with [Nightwatch.js](http://nightwatchjs.org/).
 
-- **`src`**: contains the source code, obviously. The codebase is written in ES2015 with [Flow](https://flowtype.org/) type annotations.
+- **`src`**: contains the source code. The codebase is written in ES2015 with [Flow](https://flowtype.org/) type annotations.
 
   - **`compiler`**: contains code for the template-to-render-function compiler.
 
-    The compiler consists of a parser (converts template strings to element ASTs), an optimizer (detects static trees for vdom render optimization), and a code generator (generate render function code from element ASTs). Note the codegen directly generates code strings from the element AST - it's done this way for smaller code size because the compiler is shipped to the browser in the standalone build.
+    The compiler consists of a parser (converts template strings to element ASTs), an optimizer (detects static trees for vdom render optimization), and a code generator (generate render function code from element ASTs). Note that codegen directly generates code strings from the element AST - it's done this way for smaller code size because the compiler is shipped to the browser in the standalone build.
 
   - **`core`**: contains universal, platform-agnostic runtime code.
 
-    The Vue 2.0 core is platform-agnostic - which means code inside `core` should be able to run in any JavaScript environment, be it the browser, Node.js, or an embedded JavaScript runtime in native applications.
+    The Vue 2.0 core is platform-agnostic. That is, code inside `core` is able to be run in any JavaScript environment, be it the browser, Node.js, or an embedded JavaScript runtime in native applications.
 
     - **`observer`**: contains code related to the reactivity system.
 
@@ -101,9 +101,9 @@ The default test script will do the following: lint with ESLint -> type check wi
 
     - **`instance`**: contains Vue instance constructor and prototype methods.
 
-    - **`global-api`**: as the name suggests.
+    - **`global-api`**: contains Vue global api.
 
-    - **`components`**: universal abstract components. Currently `keep-alive` is the only one.
+    - **`components`**: contains universal abstract components.
 
   - **`server`**: contains code related to server-side rendering.
 
@@ -111,7 +111,7 @@ The default test script will do the following: lint with ESLint -> type check wi
 
     Entry files for dist builds are located in their respective platform directory.
 
-    Each platform module contains three parts: `compiler`, `runtime` and `server`, corresponding to the three directories above. Each part contains platform-specific modules/utilities which are then imported and injected to the core counterparts in platform-specific entry files. For example, the code implementing the logic behind `v-bind:class` is in `platforms/web/runtime/modules/class.js` - which is imported in `entries/web-runtime.js` and used to create the browser-specific vdom patching function.
+    Each platform module contains three parts: `compiler`, `runtime` and `server`, corresponding to the three directories above. Each part contains platform-specific modules/utilities which are imported and injected to the core counterparts in platform-specific entry files. For example, the code implementing the logic behind `v-bind:class` is in `platforms/web/runtime/modules/class.js` - which is imported in `entries/web-runtime.js` and used to create the browser-specific vdom patching function.
 
   - **`sfc`**: contains single-file component (`*.vue` files) parsing logic. This is used in the `vue-template-compiler` package.
 
@@ -119,17 +119,17 @@ The default test script will do the following: lint with ESLint -> type check wi
 
   - **`types`**: contains TypeScript type definitions
 
-    - **`test`**: type definitions tests
+    - **`test`**: contains type definitions tests
 
 
 ## Financial Contribution
 
-As a pure community-driven project without major corporate backing, we also welcome financial contributions via Patreon or OpenCollective.
+As a pure community-driven project without major corporate backing, we also welcome financial contributions via Patreon and OpenCollective.
 
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/evanyou)
 - [Become a backer or sponsor on OpenCollective](https://opencollective.com/vuejs)
 
-### What's the difference between Patreon and OpenCollective?
+### What's the difference between Patreon and OpenCollective funding?
 
 Funds donated via Patreon go directly to support Evan You's full-time work on Vue.js. Funds donated via OpenCollective are managed with transparent expenses and will be used for compensating work and expenses for core team members or sponsoring community events. Your name/logo will receive proper recognition and exposure by donating on either platform.
 

From 57bc80a546acb2bd092edd393228324b453ae4e2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 7 Feb 2019 10:03:13 -0500
Subject: [PATCH 798/911] fix: empty scoped slot should return undefined

fix #9452
---
 .../vdom/helpers/normalize-scoped-slots.js    |  7 ++++--
 .../component/component-scoped-slot.spec.js   | 25 +++++++++++++++++++
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 95b90215da2..29e7b6c7f55 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -33,10 +33,13 @@ export function normalizeScopedSlots (
 
 function normalizeScopedSlot(fn: Function): Function {
   return scope => {
-    const res = fn(scope)
-    return res && typeof res === 'object' && !Array.isArray(res)
+    let res = fn(scope)
+    res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
+    return res && res.length === 0
+      ? undefined
+      : res
   }
 }
 
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 12206835a01..06a6539dfcf 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1034,4 +1034,29 @@ describe('Component scoped slot', () => {
       expect(vm.$el.textContent).toBe(JSON.stringify({ changed: 'hello' }, null, 2))
     }).then(done)
   })
+
+  // #9452
+  it('fallback for scoped slots passed multiple levels down', () => {
+    const inner = {
+      template: `<div><slot>fallback</slot></div>`
+    }
+
+    const wrapper = {
+      template: `
+        <inner>
+          <template #default>
+            <slot/>
+          </template>
+        </inner>
+      `,
+      components: { inner }
+    }
+
+    const vm = new Vue({
+      components: { wrapper, inner },
+      template: `<wrapper/>`
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe(`fallback`)
+  })
 })

From ca57920edb56000bfc87bb64f4e5e3450c03e13a Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 7 Feb 2019 10:17:28 -0500
Subject: [PATCH 799/911] fix: avoid logging same error twice when thrown by
 user in global handler

fix #9445
---
 src/core/util/error.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index 6110639e4ae..e4604ecf230 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -49,7 +49,11 @@ function globalHandleError (err, vm, info) {
     try {
       return config.errorHandler.call(null, err, vm, info)
     } catch (e) {
-      logError(e, null, 'config.errorHandler')
+      // if the user intentionally throws the original error in the handler,
+      // do not log it twice
+      if (e !== err) {
+        logError(e, null, 'config.errorHandler')
+      }
     }
   }
   logError(err, vm, info)

From 0e8560d0fc1c0fbf3a52464939701e0e44543b00 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 13:47:17 -0500
Subject: [PATCH 800/911] fix: expose v-slot slots without scope on this.$slots

fix #9421, fix #9458
---
 src/compiler/codegen/index.js                 |  4 ++-
 .../render-helpers/resolve-scoped-slots.js    |  4 +++
 .../vdom/helpers/normalize-scoped-slots.js    | 19 +++++++++---
 .../component/component-scoped-slot.spec.js   | 29 +++++++++++++++++++
 4 files changed, 51 insertions(+), 5 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 0c218869c25..93ae4cbc21f 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -411,7 +411,9 @@ function genScopedSlot (
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`
-  return `{key:${el.slotTarget || `"default"`},fn:${fn}}`
+  // reverse proxy v-slot without scope on this.$slots
+  const reverseProxy = slotScope ? `` : `,proxy:true`
+  return `{key:${el.slotTarget || `"default"`},fn:${fn}${reverseProxy}}`
 }
 
 export function genChildren (
diff --git a/src/core/instance/render-helpers/resolve-scoped-slots.js b/src/core/instance/render-helpers/resolve-scoped-slots.js
index a095865ebf2..2e2abbf8186 100644
--- a/src/core/instance/render-helpers/resolve-scoped-slots.js
+++ b/src/core/instance/render-helpers/resolve-scoped-slots.js
@@ -11,6 +11,10 @@ export function resolveScopedSlots (
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res)
     } else if (slot) {
+      // marker for reverse proxying v-slot without scope on this.$slots
+      if (slot.proxy) {
+        slot.fn.proxy = true
+      }
       res[slot.key] = slot.fn
     }
   }
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 29e7b6c7f55..c8b48a8dfe1 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -16,7 +16,7 @@ export function normalizeScopedSlots (
     res = {}
     for (const key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key])
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key])
       }
     }
   }
@@ -31,9 +31,9 @@ export function normalizeScopedSlots (
   return res
 }
 
-function normalizeScopedSlot(fn: Function): Function {
-  return scope => {
-    let res = fn(scope)
+function normalizeScopedSlot(normalSlots, key, fn) {
+  const normalized = scope => {
+    let res = fn(scope || {})
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
@@ -41,6 +41,17 @@ function normalizeScopedSlot(fn: Function): Function {
       ? undefined
       : res
   }
+  // this is a slot using the new v-slot syntax without scope. although it is
+  // compiled as a scoped slot, render fn users would expect it to be present
+  // on this.$slots because the usage is semantically a normal slot.
+  if (fn.proxy) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized,
+      enumerable: true,
+      configurable: true
+    })
+  }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 06a6539dfcf..8e72efd2e7a 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1059,4 +1059,33 @@ describe('Component scoped slot', () => {
 
     expect(vm.$el.textContent).toBe(`fallback`)
   })
+
+  it('should expose v-slot without scope on this.$slots', () => {
+    const vm = new Vue({
+      template: `<foo><template v-slot>hello</template></foo>`,
+      components: {
+        foo: {
+          render(h) {
+            return h('div', this.$slots.default)
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$el.textContent).toBe('hello')
+  })
+
+  it('should not expose legacy syntax scoped slot on this.$slots', () => {
+    const vm = new Vue({
+      template: `<foo><template slot-scope="foo">hello</template></foo>`,
+      components: {
+        foo: {
+          render(h) {
+            expect(this.$slots.default).toBeUndefined()
+            return h('div', this.$slots.default)
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$el.textContent).toBe('')
+  })
 })

From 7a0dfd0badf3054c95ac1ec66cc6e213f1592c95 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 14:35:37 -0500
Subject: [PATCH 801/911] perf: cache result from functional ctx.slots() calls

---
 src/core/vdom/create-functional-component.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 533fb2363f4..7acd8a9aefe 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -49,7 +49,7 @@ export function FunctionalRenderContext (
   this.parent = parent
   this.listeners = data.on || emptyObject
   this.injections = resolveInject(options.inject, parent)
-  this.slots = () => resolveSlots(children, parent)
+  this.slots = () => this.$slots || (this.$slots = resolveSlots(children, parent))
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,

From 099f3ba60085a089ff369442bdb835f3868e47c0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 14:36:36 -0500
Subject: [PATCH 802/911] perf: skip scoped slots normalization when possible

---
 src/core/instance/render.js                     |  3 ++-
 src/core/vdom/helpers/normalize-scoped-slots.js | 14 +++++++++++---
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index f3ebe8d7a96..c888e39688d 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -73,7 +73,8 @@ export function renderMixin (Vue: Class<Component>) {
     if (_parentVnode) {
       vm.$scopedSlots = normalizeScopedSlots(
         _parentVnode.data.scopedSlots,
-        vm.$slots
+        vm.$slots,
+        vm.$scopedSlots
       )
     }
 
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index c8b48a8dfe1..b5274e84802 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -2,16 +2,22 @@
 
 import { def } from 'core/util/lang'
 import { normalizeChildren } from 'core/vdom/helpers/normalize-children'
+import { emptyObject } from 'shared/util'
 
 export function normalizeScopedSlots (
   slots: { [key: string]: Function } | void,
-  normalSlots: { [key: string]: Array<VNode> }
+  normalSlots: { [key: string]: Array<VNode> },
+  prevSlots?: { [key: string]: Function } | void
 ): any {
   let res
   if (!slots) {
     res = {}
   } else if (slots._normalized) {
-    return slots
+    // fast path 1: child component re-render only, parent did not change
+    return slots._normalized
+  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+    // fast path 2: stable scoped slots, only need to normalize once
+    return prevSlots
   } else {
     res = {}
     for (const key in slots) {
@@ -26,7 +32,9 @@ export function normalizeScopedSlots (
       res[key] = proxyNormalSlot(normalSlots, key)
     }
   }
-  def(res, '_normalized', true)
+  if (slots) {
+    (slots: any)._normalized = res
+  }
   def(res, '$stable', slots ? !!slots.$stable : true)
   return res
 }

From 8a800867fe61e5aa642e1e3da91bb890d07312f7 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 14:45:45 -0500
Subject: [PATCH 803/911] fix: new syntax slots without scope should also be
 exposed on functional slots()

---
 src/core/vdom/create-functional-component.js      | 10 +++++++++-
 .../component/component-scoped-slot.spec.js       | 15 +++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/create-functional-component.js b/src/core/vdom/create-functional-component.js
index 7acd8a9aefe..c6edf65dfe2 100644
--- a/src/core/vdom/create-functional-component.js
+++ b/src/core/vdom/create-functional-component.js
@@ -49,7 +49,15 @@ export function FunctionalRenderContext (
   this.parent = parent
   this.listeners = data.on || emptyObject
   this.injections = resolveInject(options.inject, parent)
-  this.slots = () => this.$slots || (this.$slots = resolveSlots(children, parent))
+  this.slots = () => {
+    if (!this.$slots) {
+      normalizeScopedSlots(
+        data.scopedSlots,
+        this.$slots = resolveSlots(children, parent)
+      )
+    }
+    return this.$slots
+  }
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 8e72efd2e7a..3bf91c087c9 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1088,4 +1088,19 @@ describe('Component scoped slot', () => {
     }).$mount()
     expect(vm.$el.textContent).toBe('')
   })
+
+  it('should expose v-slot without scope on ctx.slots() in functional', () => {
+    const vm = new Vue({
+      template: `<foo><template v-slot>hello</template></foo>`,
+      components: {
+        foo: {
+          functional: true,
+          render(h, ctx) {
+            return h('div', ctx.slots().default)
+          }
+        }
+      }
+    }).$mount()
+    expect(vm.$el.textContent).toBe('hello')
+  })
 })

From 9011b83db79cf2f3563f8fccb2e41b5b863c3ee9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 16:11:41 -0500
Subject: [PATCH 804/911] fix: avoid breaking avoriaz edge case

---
 src/core/vdom/helpers/normalize-scoped-slots.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index b5274e84802..3f8d62ffa49 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -32,7 +32,9 @@ export function normalizeScopedSlots (
       res[key] = proxyNormalSlot(normalSlots, key)
     }
   }
-  if (slots) {
+  // avoriaz seems to mock a non-extensible $scopedSlots object
+  // and when that is passed down this would cause an error
+  if (Object.isExtensible(slots)) {
     (slots: any)._normalized = res
   }
   def(res, '$stable', slots ? !!slots.$stable : true)

From b2a093fa03704b2f0c6b2e9ee4d10b7ed156698d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 16:32:22 -0500
Subject: [PATCH 805/911] chore: fix e2e test in phantomjs

---
 src/core/vdom/helpers/normalize-scoped-slots.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 3f8d62ffa49..e4a54f1fbff 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -34,7 +34,7 @@ export function normalizeScopedSlots (
   }
   // avoriaz seems to mock a non-extensible $scopedSlots object
   // and when that is passed down this would cause an error
-  if (Object.isExtensible(slots)) {
+  if (slots && Object.isExtensible(slots)) {
     (slots: any)._normalized = res
   }
   def(res, '$stable', slots ? !!slots.$stable : true)

From dfb9fb177feff7dbdc249b4a55bf53f0fbc2af82 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 16:44:45 -0500
Subject: [PATCH 806/911] build: build 2.6.4

---
 dist/vue.common.dev.js                      | 74 ++++++++++++++++-----
 dist/vue.common.prod.js                     |  4 +-
 dist/vue.esm.browser.js                     | 72 +++++++++++++++-----
 dist/vue.esm.browser.min.js                 |  4 +-
 dist/vue.esm.js                             | 74 ++++++++++++++++-----
 dist/vue.js                                 | 74 ++++++++++++++++-----
 dist/vue.min.js                             |  4 +-
 dist/vue.runtime.common.dev.js              | 70 +++++++++++++++----
 dist/vue.runtime.common.prod.js             |  4 +-
 dist/vue.runtime.esm.js                     | 70 +++++++++++++++----
 dist/vue.runtime.js                         | 70 +++++++++++++++----
 dist/vue.runtime.min.js                     |  4 +-
 packages/vue-server-renderer/basic.js       | 61 ++++++++++++++---
 packages/vue-server-renderer/build.dev.js   | 61 ++++++++++++++---
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   |  4 +-
 packages/vue-template-compiler/build.js     |  4 +-
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 521 insertions(+), 139 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 36780a616ed..f677623b111 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1864,7 +1864,11 @@ function globalHandleError (err, vm, info) {
     try {
       return config.errorHandler.call(null, err, vm, info)
     } catch (e) {
-      logError(e, null, 'config.errorHandler');
+      // if the user intentionally throws the original error in the handler,
+      // do not log it twice
+      if (e !== err) {
+        logError(e, null, 'config.errorHandler');
+      }
     }
   }
   logError(err, vm, info);
@@ -2526,18 +2530,23 @@ function isWhitespace (node) {
 
 function normalizeScopedSlots (
   slots,
-  normalSlots
+  normalSlots,
+  prevSlots
 ) {
   var res;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
-    return slots
+    // fast path 1: child component re-render only, parent did not change
+    return slots._normalized
+  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+    // fast path 2: stable scoped slots, only need to normalize once
+    return prevSlots
   } else {
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -2547,18 +2556,36 @@ function normalizeScopedSlots (
       res[key$1] = proxyNormalSlot(normalSlots, key$1);
     }
   }
-  def(res, '_normalized', true);
+  // avoriaz seems to mock a non-extensible $scopedSlots object
+  // and when that is passed down this would cause an error
+  if (slots && Object.isExtensible(slots)) {
+    (slots)._normalized = res;
+  }
   def(res, '$stable', slots ? !!slots.$stable : true);
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    var res = fn(scope || {});
+    res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
-      : normalizeChildren(res)
+      : normalizeChildren(res);
+    return res && res.length === 0
+      ? undefined
+      : res
+  };
+  // this is a slot using the new v-slot syntax without scope. although it is
+  // compiled as a scoped slot, render fn users would expect it to be present
+  // on this.$slots because the usage is semantically a normal slot.
+  if (fn.proxy) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized,
+      enumerable: true,
+      configurable: true
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -2838,6 +2865,10 @@ function resolveScopedSlots (
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
     } else if (slot) {
+      // marker for reverse proxying v-slot without scope on this.$slots
+      if (slot.proxy) {
+        slot.fn.proxy = true;
+      }
       res[slot.key] = slot.fn;
     }
   }
@@ -2900,6 +2931,8 @@ function FunctionalRenderContext (
   parent,
   Ctor
 ) {
+  var this$1 = this;
+
   var options = Ctor.options;
   // ensure the createElement function in functional components
   // gets a unique context - this is necessary for correct named slot check
@@ -2925,7 +2958,15 @@ function FunctionalRenderContext (
   this.parent = parent;
   this.listeners = data.on || emptyObject;
   this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+  this.slots = function () {
+    if (!this$1.$slots) {
+      normalizeScopedSlots(
+        data.scopedSlots,
+        this$1.$slots = resolveSlots(children, parent)
+      );
+    }
+    return this$1.$slots
+  };
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
@@ -3451,7 +3492,8 @@ function renderMixin (Vue) {
     if (_parentVnode) {
       vm.$scopedSlots = normalizeScopedSlots(
         _parentVnode.data.scopedSlots,
-        vm.$slots
+        vm.$slots,
+        vm.$scopedSlots
       );
     }
 
@@ -5331,7 +5373,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.3';
+Vue.version = '2.6.4';
 
 /*  */
 
@@ -11138,7 +11180,9 @@ function genScopedSlot (
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
+  // reverse proxy v-slot without scope on this.$slots
+  var reverseProxy = slotScope ? "" : ",proxy:true";
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
 }
 
 function genChildren (
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index 2c7c8c6b404..79a0a5d9c88 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var _=/-(\w)/g,b=g(function(e){return e.replace(_,function(e,t){return t?t.toUpperCase():""})}),$=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),w=/\B([A-Z])/g,C=g(function(e){return e.replace(w,"-$1").toLowerCase()});var x=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function A(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function O(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function S(e,t,n){}var T=function(e,t,n){return!1},E=function(e){return e};function N(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var 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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 57fbf89cc63..27114c236cb 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1895,7 +1895,11 @@ function globalHandleError (err, vm, info) {
     try {
       return config.errorHandler.call(null, err, vm, info)
     } catch (e) {
-      logError(e, null, 'config.errorHandler');
+      // if the user intentionally throws the original error in the handler,
+      // do not log it twice
+      if (e !== err) {
+        logError(e, null, 'config.errorHandler');
+      }
     }
   }
   logError(err, vm, info);
@@ -2554,18 +2558,23 @@ function isWhitespace (node) {
 
 function normalizeScopedSlots (
   slots,
-  normalSlots
+  normalSlots,
+  prevSlots
 ) {
   let res;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
-    return slots
+    // fast path 1: child component re-render only, parent did not change
+    return slots._normalized
+  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+    // fast path 2: stable scoped slots, only need to normalize once
+    return prevSlots
   } else {
     res = {};
     for (const key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -2575,18 +2584,36 @@ function normalizeScopedSlots (
       res[key] = proxyNormalSlot(normalSlots, key);
     }
   }
-  def(res, '_normalized', true);
+  // avoriaz seems to mock a non-extensible $scopedSlots object
+  // and when that is passed down this would cause an error
+  if (slots && Object.isExtensible(slots)) {
+    (slots)._normalized = res;
+  }
   def(res, '$stable', slots ? !!slots.$stable : true);
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return scope => {
-    const res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
+function normalizeScopedSlot(normalSlots, key, fn) {
+  const normalized = scope => {
+    let res = fn(scope || {});
+    res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
-      : normalizeChildren(res)
+      : normalizeChildren(res);
+    return res && res.length === 0
+      ? undefined
+      : res
+  };
+  // this is a slot using the new v-slot syntax without scope. although it is
+  // compiled as a scoped slot, render fn users would expect it to be present
+  // on this.$slots because the usage is semantically a normal slot.
+  if (fn.proxy) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized,
+      enumerable: true,
+      configurable: true
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -2864,6 +2891,10 @@ function resolveScopedSlots (
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
     } else if (slot) {
+      // marker for reverse proxying v-slot without scope on this.$slots
+      if (slot.proxy) {
+        slot.fn.proxy = true;
+      }
       res[slot.key] = slot.fn;
     }
   }
@@ -2951,7 +2982,15 @@ function FunctionalRenderContext (
   this.parent = parent;
   this.listeners = data.on || emptyObject;
   this.injections = resolveInject(options.inject, parent);
-  this.slots = () => resolveSlots(children, parent);
+  this.slots = () => {
+    if (!this.$slots) {
+      normalizeScopedSlots(
+        data.scopedSlots,
+        this.$slots = resolveSlots(children, parent)
+      );
+    }
+    return this.$slots
+  };
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
@@ -3474,7 +3513,8 @@ function renderMixin (Vue) {
     if (_parentVnode) {
       vm.$scopedSlots = normalizeScopedSlots(
         _parentVnode.data.scopedSlots,
-        vm.$slots
+        vm.$slots,
+        vm.$scopedSlots
       );
     }
 
@@ -5364,7 +5404,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.3';
+Vue.version = '2.6.4';
 
 /*  */
 
@@ -11202,7 +11242,9 @@ function genScopedSlot (
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)
     }}`;
-  return `{key:${el.slotTarget || `"default"`},fn:${fn}}`
+  // reverse proxy v-slot without scope on this.$slots
+  const reverseProxy = slotScope ? `` : `,proxy:true`;
+  return `{key:${el.slotTarget || `"default"`},fn:${fn}${reverseProxy}}`
 }
 
 function genChildren (
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 79137b9abf3..88cae94b236 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const y=Object.prototype.hasOwnProperty;function g(t,e){return y.call(t,e)}function v(t){const e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}const $=/-(\w)/g,_=v(t=>t.replace($,(t,e)=>e?e.toUpperCase():"")),b=v(t=>t.charAt(0).toUpperCase()+t.slice(1)),w=/\B([A-Z])/g,C=v(t=>t.replace(w,"-$1").toLowerCase());const x=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){const o=arguments.length;return o?o>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;let n=t.length-e;const o=new Array(n);for(;n--;)o[n]=t[n+e];return o}function k(t,e){for(const n in e)t[n]=e[n];return t}function O(t){const e={};for(let n=0;n<t.length;n++)t[n]&&k(e,t[n]);return e}function S(t,e,n){}const T=(t,e,n)=>!1,E=t=>t;function N(t,e){if(t===e)return!0;const n=s(t),o=s(e);if(!n||!o)return!n&&!o&&String(t)===String(e);try{const n=Array.isArray(t),o=Array.isArray(e);if(n&&o)return 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t(e){e.static=function(t){if(2===t.type)return!1;if(3===t.type)return!0;return!(!t.pre&&(t.hasBindings||t.if||t.for||p(t.tag)||!yi(t.tag)||function(t){for(;t.parent;){if("template"!==(t=t.parent).tag)return!1;if(t.for)return!0}return!1}(t)||!Object.keys(t).every(mi)))}(e);if(1===e.type){if(!yi(e.tag)&&"slot"!==e.tag&&null==e.attrsMap["inline-template"])return;for(let n=0,o=e.children.length;n<o;n++){const o=e.children[n];t(o),o.static||(e.static=!1)}if(e.ifConditions)for(let n=1,o=e.ifConditions.length;n<o;n++){const o=e.ifConditions[n].block;t(o),o.static||(e.static=!1)}}}(t),function t(e,n){if(1===e.type){if((e.static||e.once)&&(e.staticInFor=n),e.static&&e.children.length&&(1!==e.children.length||3!==e.children[0].type))return void(e.staticRoot=!0);if(e.staticRoot=!1,e.children)for(let o=0,r=e.children.length;o<r;o++)t(e.children[o],n||!!e.for);if(e.ifConditions)for(let o=1,r=e.ifConditions.length;o<r;o++)t(e.ifConditions[o].block,n)}}(t,!1))}const $i=/^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/,_i=/\([^)]*?\);*$/,bi=/^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/,wi={esc:27,tab:9,enter:13,space:32,up:38,left:37,right:39,down:40,delete:[8,46]},Ci={esc:["Esc","Escape"],tab:"Tab",enter:"Enter",space:[" ","Spacebar"],up:["Up","ArrowUp"],left:["Left","ArrowLeft"],right:["Right","ArrowRight"],down:["Down","ArrowDown"],delete:["Backspace","Delete","Del"]},xi=t=>`if(${t})return null;`,Ai={stop:"$event.stopPropagation();",prevent:"$event.preventDefault();",self:xi("$event.target !== $event.currentTarget"),ctrl:xi("!$event.ctrlKey"),shift:xi("!$event.shiftKey"),alt:xi("!$event.altKey"),meta:xi("!$event.metaKey"),left:xi("'button' in $event && $event.button !== 0"),middle:xi("'button' in $event && $event.button !== 1"),right:xi("'button' in $event && $event.button !== 2")};function ki(t,e){const n=e?"nativeOn:":"on:";let o="",r="";for(const e in t){const n=Oi(t[e]);t[e]&&t[e].dynamic?r+=`${e},${n},`:o+=`"${e}":${n},`}return o=`{${o.slice(0,-1)}}`,r?n+`_d(${o},[${r.slice(0,-1)}])`:n+o}function Oi(t){if(!t)return"function(){}";if(Array.isArray(t))return`[${t.map(t=>Oi(t)).join(",")}]`;const e=bi.test(t.value),n=$i.test(t.value),o=bi.test(t.value.replace(_i,""));if(t.modifiers){let r="",s="";const i=[];for(const e in t.modifiers)if(Ai[e])s+=Ai[e],wi[e]&&i.push(e);else if("exact"===e){const e=t.modifiers;s+=xi(["ctrl","shift","alt","meta"].filter(t=>!e[t]).map(t=>`$event.${t}Key`).join("||"))}else i.push(e);return i.length&&(r+=function(t){return`if(('keyCode' in $event)&&${t.map(Si).join("&&")})return null;`}(i)),s&&(r+=s),`function($event){${r}${e?`return ${t.value}($event)`:n?`return (${t.value})($event)`:o?`return ${t.value}`:t.value}}`}return e||n?t.value:`function($event){${o?`return ${t.value}`:t.value}}`}function Si(t){const e=parseInt(t,10);if(e)return`$event.keyCode!==${e}`;const n=wi[t],o=Ci[t];return"_k($event.keyCode,"+`${JSON.stringify(t)},`+`${JSON.stringify(n)},`+"$event.key,"+`${JSON.stringify(o)}`+")"}var Ti={on:function(t,e){t.wrapListeners=(t=>`_g(${t},${e.value})`)},bind:function(t,e){t.wrapData=(n=>`_b(${n},'${t.tag}',${e.value},${e.modifiers&&e.modifiers.prop?"true":"false"}${e.modifiers&&e.modifiers.sync?",true":""})`)},cloak:S};class Ei{constructor(t){this.options=t,this.warn=t.warn||yo,this.transforms=go(t.modules,"transformCode"),this.dataGenFns=go(t.modules,"genData"),this.directives=k(k({},Ti),t.directives);const e=t.isReservedTag||T;this.maybeComponent=(t=>!!t.component||!e(t.tag)),this.onceId=0,this.staticRenderFns=[],this.pre=!1}}function Ni(t,e){const n=new Ei(e);return{render:`with(this){return ${t?ji(t,n):'_c("div")'}}`,staticRenderFns:n.staticRenderFns}}function ji(t,e){if(t.parent&&(t.pre=t.pre||t.parent.pre),t.staticRoot&&!t.staticProcessed)return Li(t,e);if(t.once&&!t.onceProcessed)return Mi(t,e);if(t.for&&!t.forProcessed)return Di(t,e);if(t.if&&!t.ifProcessed)return Ii(t,e);if("template"!==t.tag||t.slotTarget||e.pre){if("slot"===t.tag)return function(t,e){const n=t.slotName||'"default"',o=Fi(t,e);let r=`_t(${n}${o?`,${o}`:""}`;const s=t.attrs||t.dynamicAttrs?Ui((t.attrs||[]).concat(t.dynamicAttrs||[]).map(t=>({name:_(t.name),value:t.value,dynamic:t.dynamic}))):null,i=t.attrsMap["v-bind"];!s&&!i||o||(r+=",null");s&&(r+=`,${s}`);i&&(r+=`${s?"":",null"},${i}`);return r+")"}(t,e);{let n;if(t.component)n=function(t,e,n){const o=e.inlineTemplate?null:Fi(e,n,!0);return`_c(${t},${Pi(e,n)}${o?`,${o}`:""})`}(t.component,t,e);else{let o;(!t.plain||t.pre&&e.maybeComponent(t))&&(o=Pi(t,e));const r=t.inlineTemplate?null:Fi(t,e,!0);n=`_c('${t.tag}'${o?`,${o}`:""}${r?`,${r}`:""})`}for(let o=0;o<e.transforms.length;o++)n=e.transforms[o](t,n);return n}}return Fi(t,e)||"void 0"}function Li(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${ji(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Mi(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ii(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${ji(t,e)},${e.onceId++},${n})`:ji(t,e)}return Li(t,e)}function Ii(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Mi(t,n):ji(t,n)}}(t.ifConditions.slice(),e,n,o)}function Di(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||ji)(t,e)}`+"})"}function Pi(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Ui(t.attrs)},`),t.props&&(n+=`domProps:${Ui(t.props)},`),t.events&&(n+=`${ki(t.events,!1)},`),t.nativeEvents&&(n+=`${ki(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e,n){let o=Object.keys(e).some(t=>{const n=e[t];return n.slotTargetDynamic||n.if||n.for});if(!o){let e=t.parent;for(;e;){if(e.slotScope&&e.slotScope!==qs){o=!0;break}e=e.parent}}return`scopedSlots:_u([${Object.keys(e).map(t=>Ri(e[t],n)).join(",")}]${o?",true":""})`}(t,t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(n&&1===n.type){const t=Ni(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Ui(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Ri(t,e){const n=t.attrsMap["slot-scope"];if(t.if&&!t.ifProcessed&&!n)return Ii(t,e,Ri,"null");if(t.for&&!t.forProcessed)return Di(t,e,Ri);const o=t.slotScope===qs?"":String(t.slotScope),r=`function(${o}){`+`return ${"template"===t.tag?t.if&&n?`(${t.if})?${Fi(t,e)||"undefined"}:undefined`:Fi(t,e)||"undefined":ji(t,e)}}`,s=o?"":",proxy:true";return`{key:${t.slotTarget||'"default"'},fn:${r}${s}}`}function Fi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||ji)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Hi(r)||r.ifConditions&&r.ifConditions.some(t=>Hi(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Bi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Hi(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Bi(t,e){return 1===t.type?ji(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:zi(JSON.stringify(n.text))})`;var n,o}function Ui(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=zi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function zi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Vi(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Ki(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Vi(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Vi(t,c)),e[s]=a}}const Ji=(qi=function(t,e){const n=oi(t.trim(),e);!1!==e.optimize&&vi(n,e);const o=Ni(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=qi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Ki(e)}});var qi;const{compile:Wi,compileToFunctions:Zi}=Ji(hi);let Gi;function Xi(t){return(Gi=Gi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Gi.innerHTML.indexOf("&#10;")>0}const Yi=!!U&&Xi(!1),Qi=!!U&&Xi(!0),ta=v(t=>{const e=Kn(t);return e&&e.innerHTML}),ea=mn.prototype.$mount;mn.prototype.$mount=function(t,e){if((t=t&&Kn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=ta(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Zi(e,{outputSourceRange:!1,shouldDecodeNewlines:Yi,shouldDecodeNewlinesForHref:Qi,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return ea.call(this,t,e)},mn.compile=Zi;export default mn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index df1fb691f77..d1e31bb2941 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1868,7 +1868,11 @@ function globalHandleError (err, vm, info) {
     try {
       return config.errorHandler.call(null, err, vm, info)
     } catch (e) {
-      logError(e, null, 'config.errorHandler');
+      // if the user intentionally throws the original error in the handler,
+      // do not log it twice
+      if (e !== err) {
+        logError(e, null, 'config.errorHandler');
+      }
     }
   }
   logError(err, vm, info);
@@ -2532,18 +2536,23 @@ function isWhitespace (node) {
 
 function normalizeScopedSlots (
   slots,
-  normalSlots
+  normalSlots,
+  prevSlots
 ) {
   var res;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
-    return slots
+    // fast path 1: child component re-render only, parent did not change
+    return slots._normalized
+  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+    // fast path 2: stable scoped slots, only need to normalize once
+    return prevSlots
   } else {
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -2553,18 +2562,36 @@ function normalizeScopedSlots (
       res[key$1] = proxyNormalSlot(normalSlots, key$1);
     }
   }
-  def(res, '_normalized', true);
+  // avoriaz seems to mock a non-extensible $scopedSlots object
+  // and when that is passed down this would cause an error
+  if (slots && Object.isExtensible(slots)) {
+    (slots)._normalized = res;
+  }
   def(res, '$stable', slots ? !!slots.$stable : true);
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    var res = fn(scope || {});
+    res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
-      : normalizeChildren(res)
+      : normalizeChildren(res);
+    return res && res.length === 0
+      ? undefined
+      : res
+  };
+  // this is a slot using the new v-slot syntax without scope. although it is
+  // compiled as a scoped slot, render fn users would expect it to be present
+  // on this.$slots because the usage is semantically a normal slot.
+  if (fn.proxy) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized,
+      enumerable: true,
+      configurable: true
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -2844,6 +2871,10 @@ function resolveScopedSlots (
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
     } else if (slot) {
+      // marker for reverse proxying v-slot without scope on this.$slots
+      if (slot.proxy) {
+        slot.fn.proxy = true;
+      }
       res[slot.key] = slot.fn;
     }
   }
@@ -2906,6 +2937,8 @@ function FunctionalRenderContext (
   parent,
   Ctor
 ) {
+  var this$1 = this;
+
   var options = Ctor.options;
   // ensure the createElement function in functional components
   // gets a unique context - this is necessary for correct named slot check
@@ -2931,7 +2964,15 @@ function FunctionalRenderContext (
   this.parent = parent;
   this.listeners = data.on || emptyObject;
   this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+  this.slots = function () {
+    if (!this$1.$slots) {
+      normalizeScopedSlots(
+        data.scopedSlots,
+        this$1.$slots = resolveSlots(children, parent)
+      );
+    }
+    return this$1.$slots
+  };
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
@@ -3461,7 +3502,8 @@ function renderMixin (Vue) {
     if (_parentVnode) {
       vm.$scopedSlots = normalizeScopedSlots(
         _parentVnode.data.scopedSlots,
-        vm.$slots
+        vm.$slots,
+        vm.$scopedSlots
       );
     }
 
@@ -5351,7 +5393,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.3';
+Vue.version = '2.6.4';
 
 /*  */
 
@@ -11172,7 +11214,9 @@ function genScopedSlot (
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
+  // reverse proxy v-slot without scope on this.$slots
+  var reverseProxy = slotScope ? "" : ",proxy:true";
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
 }
 
 function genChildren (
diff --git a/dist/vue.js b/dist/vue.js
index 26151737239..6fe98807b29 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1868,7 +1868,11 @@
       try {
         return config.errorHandler.call(null, err, vm, info)
       } catch (e) {
-        logError(e, null, 'config.errorHandler');
+        // if the user intentionally throws the original error in the handler,
+        // do not log it twice
+        if (e !== err) {
+          logError(e, null, 'config.errorHandler');
+        }
       }
     }
     logError(err, vm, info);
@@ -2530,18 +2534,23 @@
 
   function normalizeScopedSlots (
     slots,
-    normalSlots
+    normalSlots,
+    prevSlots
   ) {
     var res;
     if (!slots) {
       res = {};
     } else if (slots._normalized) {
-      return slots
+      // fast path 1: child component re-render only, parent did not change
+      return slots._normalized
+    } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+      // fast path 2: stable scoped slots, only need to normalize once
+      return prevSlots
     } else {
       res = {};
       for (var key in slots) {
         if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(slots[key]);
+          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
         }
       }
     }
@@ -2551,18 +2560,36 @@
         res[key$1] = proxyNormalSlot(normalSlots, key$1);
       }
     }
-    def(res, '_normalized', true);
+    // avoriaz seems to mock a non-extensible $scopedSlots object
+    // and when that is passed down this would cause an error
+    if (slots && Object.isExtensible(slots)) {
+      (slots)._normalized = res;
+    }
     def(res, '$stable', slots ? !!slots.$stable : true);
     return res
   }
 
-  function normalizeScopedSlot(fn) {
-    return function (scope) {
-      var res = fn(scope);
-      return res && typeof res === 'object' && !Array.isArray(res)
+  function normalizeScopedSlot(normalSlots, key, fn) {
+    var normalized = function (scope) {
+      var res = fn(scope || {});
+      res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
-        : normalizeChildren(res)
+        : normalizeChildren(res);
+      return res && res.length === 0
+        ? undefined
+        : res
+    };
+    // this is a slot using the new v-slot syntax without scope. although it is
+    // compiled as a scoped slot, render fn users would expect it to be present
+    // on this.$slots because the usage is semantically a normal slot.
+    if (fn.proxy) {
+      Object.defineProperty(normalSlots, key, {
+        get: normalized,
+        enumerable: true,
+        configurable: true
+      });
     }
+    return normalized
   }
 
   function proxyNormalSlot(slots, key) {
@@ -2842,6 +2869,10 @@
       if (Array.isArray(slot)) {
         resolveScopedSlots(slot, hasDynamicKeys, res);
       } else if (slot) {
+        // marker for reverse proxying v-slot without scope on this.$slots
+        if (slot.proxy) {
+          slot.fn.proxy = true;
+        }
         res[slot.key] = slot.fn;
       }
     }
@@ -2904,6 +2935,8 @@
     parent,
     Ctor
   ) {
+    var this$1 = this;
+
     var options = Ctor.options;
     // ensure the createElement function in functional components
     // gets a unique context - this is necessary for correct named slot check
@@ -2929,7 +2962,15 @@
     this.parent = parent;
     this.listeners = data.on || emptyObject;
     this.injections = resolveInject(options.inject, parent);
-    this.slots = function () { return resolveSlots(children, parent); };
+    this.slots = function () {
+      if (!this$1.$slots) {
+        normalizeScopedSlots(
+          data.scopedSlots,
+          this$1.$slots = resolveSlots(children, parent)
+        );
+      }
+      return this$1.$slots
+    };
 
     Object.defineProperty(this, 'scopedSlots', ({
       enumerable: true,
@@ -3455,7 +3496,8 @@
       if (_parentVnode) {
         vm.$scopedSlots = normalizeScopedSlots(
           _parentVnode.data.scopedSlots,
-          vm.$slots
+          vm.$slots,
+          vm.$scopedSlots
         );
       }
 
@@ -5335,7 +5377,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.3';
+  Vue.version = '2.6.4';
 
   /*  */
 
@@ -11142,7 +11184,9 @@
           ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
           : genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
-    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
+    // reverse proxy v-slot without scope on this.$slots
+    var reverseProxy = slotScope ? "" : ",proxy:true";
+    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
   }
 
   function genChildren (
diff --git a/dist/vue.min.js b/dist/vue.min.js
index f89cdad0e30..e890c3b6955 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index 452f825a0ad..f414da795c5 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1855,7 +1855,11 @@ function globalHandleError (err, vm, info) {
     try {
       return config.errorHandler.call(null, err, vm, info)
     } catch (e) {
-      logError(e, null, 'config.errorHandler');
+      // if the user intentionally throws the original error in the handler,
+      // do not log it twice
+      if (e !== err) {
+        logError(e, null, 'config.errorHandler');
+      }
     }
   }
   logError(err, vm, info);
@@ -2517,18 +2521,23 @@ function isWhitespace (node) {
 
 function normalizeScopedSlots (
   slots,
-  normalSlots
+  normalSlots,
+  prevSlots
 ) {
   var res;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
-    return slots
+    // fast path 1: child component re-render only, parent did not change
+    return slots._normalized
+  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+    // fast path 2: stable scoped slots, only need to normalize once
+    return prevSlots
   } else {
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -2538,18 +2547,36 @@ function normalizeScopedSlots (
       res[key$1] = proxyNormalSlot(normalSlots, key$1);
     }
   }
-  def(res, '_normalized', true);
+  // avoriaz seems to mock a non-extensible $scopedSlots object
+  // and when that is passed down this would cause an error
+  if (slots && Object.isExtensible(slots)) {
+    (slots)._normalized = res;
+  }
   def(res, '$stable', slots ? !!slots.$stable : true);
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    var res = fn(scope || {});
+    res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
-      : normalizeChildren(res)
+      : normalizeChildren(res);
+    return res && res.length === 0
+      ? undefined
+      : res
+  };
+  // this is a slot using the new v-slot syntax without scope. although it is
+  // compiled as a scoped slot, render fn users would expect it to be present
+  // on this.$slots because the usage is semantically a normal slot.
+  if (fn.proxy) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized,
+      enumerable: true,
+      configurable: true
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -2829,6 +2856,10 @@ function resolveScopedSlots (
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
     } else if (slot) {
+      // marker for reverse proxying v-slot without scope on this.$slots
+      if (slot.proxy) {
+        slot.fn.proxy = true;
+      }
       res[slot.key] = slot.fn;
     }
   }
@@ -2891,6 +2922,8 @@ function FunctionalRenderContext (
   parent,
   Ctor
 ) {
+  var this$1 = this;
+
   var options = Ctor.options;
   // ensure the createElement function in functional components
   // gets a unique context - this is necessary for correct named slot check
@@ -2916,7 +2949,15 @@ function FunctionalRenderContext (
   this.parent = parent;
   this.listeners = data.on || emptyObject;
   this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+  this.slots = function () {
+    if (!this$1.$slots) {
+      normalizeScopedSlots(
+        data.scopedSlots,
+        this$1.$slots = resolveSlots(children, parent)
+      );
+    }
+    return this$1.$slots
+  };
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
@@ -3442,7 +3483,8 @@ function renderMixin (Vue) {
     if (_parentVnode) {
       vm.$scopedSlots = normalizeScopedSlots(
         _parentVnode.data.scopedSlots,
-        vm.$slots
+        vm.$slots,
+        vm.$scopedSlots
       );
     }
 
@@ -5322,7 +5364,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.3';
+Vue.version = '2.6.4';
 
 /*  */
 
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index 9471ab16c66..dc56f25d1cb 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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lo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){lo.componentUpdated(t,e,n)}):fo(t,e,n.context),t._vOptions=[].map.call(t.options,ho)):("textarea"===n.tag||qn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",mo),t.addEventListener("compositionend",yo),t.addEventListener("change",yo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){fo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,ho);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return vo(t,o)}):e.value!==e.oldValue&&vo(e.value,o))&&go(t,"change")}}};function fo(t,e,n){po(t,e,n),(W||K)&&setTimeout(function(){po(t,e,n)},0)}function po(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,ho(a))>-1,a.selected!==i&&(a.selected=i);else if(j(ho(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function vo(t,e){return e.every(function(e){return!j(e,t)})}function ho(t){return"_value"in t?t._value:t.value}function mo(t){t.target.composing=!0}function yo(t){t.target.composing&&(t.target.composing=!1,go(t.target,"input"))}function go(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function _o(t){return!t.componentInstance||t.data&&t.data.transition?t:_o(t.componentInstance._vnode)}var bo={model:lo,show:{bind:function(t,e,n){var r=e.value,o=(n=_o(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,oo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=_o(n)).data&&n.data.transition?(n.data.show=!0,r?oo(n,function(){t.style.display=t.__vOriginalDisplay}):io(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Co={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function wo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?wo(He(e.children)):t}function $o(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Ao(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var xo=function(t){return t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=$o(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function Eo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function jo(t){t.data.newPos=t.elm.getBoundingClientRect()}function Io(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var To={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=$o(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Eo),t.forEach(jo),t.forEach(Io),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};_n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=Bn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return zn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(Bn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,To),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),module.exports=_n;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 5cadd3ea6e8..1727b901c4a 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1859,7 +1859,11 @@ function globalHandleError (err, vm, info) {
     try {
       return config.errorHandler.call(null, err, vm, info)
     } catch (e) {
-      logError(e, null, 'config.errorHandler');
+      // if the user intentionally throws the original error in the handler,
+      // do not log it twice
+      if (e !== err) {
+        logError(e, null, 'config.errorHandler');
+      }
     }
   }
   logError(err, vm, info);
@@ -2523,18 +2527,23 @@ function isWhitespace (node) {
 
 function normalizeScopedSlots (
   slots,
-  normalSlots
+  normalSlots,
+  prevSlots
 ) {
   var res;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
-    return slots
+    // fast path 1: child component re-render only, parent did not change
+    return slots._normalized
+  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+    // fast path 2: stable scoped slots, only need to normalize once
+    return prevSlots
   } else {
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -2544,18 +2553,36 @@ function normalizeScopedSlots (
       res[key$1] = proxyNormalSlot(normalSlots, key$1);
     }
   }
-  def(res, '_normalized', true);
+  // avoriaz seems to mock a non-extensible $scopedSlots object
+  // and when that is passed down this would cause an error
+  if (slots && Object.isExtensible(slots)) {
+    (slots)._normalized = res;
+  }
   def(res, '$stable', slots ? !!slots.$stable : true);
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    var res = fn(scope || {});
+    res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
-      : normalizeChildren(res)
+      : normalizeChildren(res);
+    return res && res.length === 0
+      ? undefined
+      : res
+  };
+  // this is a slot using the new v-slot syntax without scope. although it is
+  // compiled as a scoped slot, render fn users would expect it to be present
+  // on this.$slots because the usage is semantically a normal slot.
+  if (fn.proxy) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized,
+      enumerable: true,
+      configurable: true
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -2835,6 +2862,10 @@ function resolveScopedSlots (
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
     } else if (slot) {
+      // marker for reverse proxying v-slot without scope on this.$slots
+      if (slot.proxy) {
+        slot.fn.proxy = true;
+      }
       res[slot.key] = slot.fn;
     }
   }
@@ -2897,6 +2928,8 @@ function FunctionalRenderContext (
   parent,
   Ctor
 ) {
+  var this$1 = this;
+
   var options = Ctor.options;
   // ensure the createElement function in functional components
   // gets a unique context - this is necessary for correct named slot check
@@ -2922,7 +2955,15 @@ function FunctionalRenderContext (
   this.parent = parent;
   this.listeners = data.on || emptyObject;
   this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+  this.slots = function () {
+    if (!this$1.$slots) {
+      normalizeScopedSlots(
+        data.scopedSlots,
+        this$1.$slots = resolveSlots(children, parent)
+      );
+    }
+    return this$1.$slots
+  };
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
@@ -3452,7 +3493,8 @@ function renderMixin (Vue) {
     if (_parentVnode) {
       vm.$scopedSlots = normalizeScopedSlots(
         _parentVnode.data.scopedSlots,
-        vm.$slots
+        vm.$slots,
+        vm.$scopedSlots
       );
     }
 
@@ -5342,7 +5384,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.3';
+Vue.version = '2.6.4';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 32ac81afdbb..284ee0ae870 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1859,7 +1859,11 @@
       try {
         return config.errorHandler.call(null, err, vm, info)
       } catch (e) {
-        logError(e, null, 'config.errorHandler');
+        // if the user intentionally throws the original error in the handler,
+        // do not log it twice
+        if (e !== err) {
+          logError(e, null, 'config.errorHandler');
+        }
       }
     }
     logError(err, vm, info);
@@ -2521,18 +2525,23 @@
 
   function normalizeScopedSlots (
     slots,
-    normalSlots
+    normalSlots,
+    prevSlots
   ) {
     var res;
     if (!slots) {
       res = {};
     } else if (slots._normalized) {
-      return slots
+      // fast path 1: child component re-render only, parent did not change
+      return slots._normalized
+    } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+      // fast path 2: stable scoped slots, only need to normalize once
+      return prevSlots
     } else {
       res = {};
       for (var key in slots) {
         if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(slots[key]);
+          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
         }
       }
     }
@@ -2542,18 +2551,36 @@
         res[key$1] = proxyNormalSlot(normalSlots, key$1);
       }
     }
-    def(res, '_normalized', true);
+    // avoriaz seems to mock a non-extensible $scopedSlots object
+    // and when that is passed down this would cause an error
+    if (slots && Object.isExtensible(slots)) {
+      (slots)._normalized = res;
+    }
     def(res, '$stable', slots ? !!slots.$stable : true);
     return res
   }
 
-  function normalizeScopedSlot(fn) {
-    return function (scope) {
-      var res = fn(scope);
-      return res && typeof res === 'object' && !Array.isArray(res)
+  function normalizeScopedSlot(normalSlots, key, fn) {
+    var normalized = function (scope) {
+      var res = fn(scope || {});
+      res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
-        : normalizeChildren(res)
+        : normalizeChildren(res);
+      return res && res.length === 0
+        ? undefined
+        : res
+    };
+    // this is a slot using the new v-slot syntax without scope. although it is
+    // compiled as a scoped slot, render fn users would expect it to be present
+    // on this.$slots because the usage is semantically a normal slot.
+    if (fn.proxy) {
+      Object.defineProperty(normalSlots, key, {
+        get: normalized,
+        enumerable: true,
+        configurable: true
+      });
     }
+    return normalized
   }
 
   function proxyNormalSlot(slots, key) {
@@ -2833,6 +2860,10 @@
       if (Array.isArray(slot)) {
         resolveScopedSlots(slot, hasDynamicKeys, res);
       } else if (slot) {
+        // marker for reverse proxying v-slot without scope on this.$slots
+        if (slot.proxy) {
+          slot.fn.proxy = true;
+        }
         res[slot.key] = slot.fn;
       }
     }
@@ -2895,6 +2926,8 @@
     parent,
     Ctor
   ) {
+    var this$1 = this;
+
     var options = Ctor.options;
     // ensure the createElement function in functional components
     // gets a unique context - this is necessary for correct named slot check
@@ -2920,7 +2953,15 @@
     this.parent = parent;
     this.listeners = data.on || emptyObject;
     this.injections = resolveInject(options.inject, parent);
-    this.slots = function () { return resolveSlots(children, parent); };
+    this.slots = function () {
+      if (!this$1.$slots) {
+        normalizeScopedSlots(
+          data.scopedSlots,
+          this$1.$slots = resolveSlots(children, parent)
+        );
+      }
+      return this$1.$slots
+    };
 
     Object.defineProperty(this, 'scopedSlots', ({
       enumerable: true,
@@ -3446,7 +3487,8 @@
       if (_parentVnode) {
         vm.$scopedSlots = normalizeScopedSlots(
           _parentVnode.data.scopedSlots,
-          vm.$slots
+          vm.$slots,
+          vm.$scopedSlots
         );
       }
 
@@ -5326,7 +5368,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.3';
+  Vue.version = '2.6.4';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 01dc65ae4fc..e00a3c4aacd 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.3
+ * Vue.js v2.6.4
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return 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lo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){lo.componentUpdated(t,e,n)}):fo(t,e,n.context),t._vOptions=[].map.call(t.options,ho)):("textarea"===n.tag||qn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",mo),t.addEventListener("compositionend",yo),t.addEventListener("change",yo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){fo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,ho);if(o.some(function(t,e){return!E(t,r[e])}))(t.multiple?e.value.some(function(t){return vo(t,o)}):e.value!==e.oldValue&&vo(e.value,o))&&go(t,"change")}}};function fo(t,e,n){po(t,e,n),(W||K)&&setTimeout(function(){po(t,e,n)},0)}function po(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=I(r,ho(a))>-1,a.selected!==i&&(a.selected=i);else if(E(ho(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function vo(t,e){return e.every(function(e){return!E(e,t)})}function ho(t){return"_value"in t?t._value:t.value}function mo(t){t.target.composing=!0}function yo(t){t.target.composing&&(t.target.composing=!1,go(t.target,"input"))}function go(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function _o(t){return!t.componentInstance||t.data&&t.data.transition?t:_o(t.componentInstance._vnode)}var bo={model:lo,show:{bind:function(t,e,n){var r=e.value,o=(n=_o(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,oo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=_o(n)).data&&n.data.transition?(n.data.show=!0,r?oo(n,function(){t.style.display=t.__vOriginalDisplay}):io(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Co={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function wo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?wo(He(e.children)):t}function $o(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Ao(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var xo=function(t){return t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=$o(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function jo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function Eo(t){t.data.newPos=t.elm.getBoundingClientRect()}function Io(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var To={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=$o(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(jo),t.forEach(Eo),t.forEach(Io),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return _n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=Bn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return zn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(Bn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,To),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),_n});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index abf4cb483df..ac8e36afab3 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -5559,7 +5559,9 @@
           ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
           : genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
-    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
+    // reverse proxy v-slot without scope on this.$slots
+    var reverseProxy = slotScope ? "" : ",proxy:true";
+    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
   }
 
   function genChildren (
@@ -7386,6 +7388,10 @@
       if (Array.isArray(slot)) {
         resolveScopedSlots(slot, hasDynamicKeys, res);
       } else if (slot) {
+        // marker for reverse proxying v-slot without scope on this.$slots
+        if (slot.proxy) {
+          slot.fn.proxy = true;
+        }
         res[slot.key] = slot.fn;
       }
     }
@@ -7494,18 +7500,23 @@
 
   function normalizeScopedSlots (
     slots,
-    normalSlots
+    normalSlots,
+    prevSlots
   ) {
     var res;
     if (!slots) {
       res = {};
     } else if (slots._normalized) {
-      return slots
+      // fast path 1: child component re-render only, parent did not change
+      return slots._normalized
+    } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+      // fast path 2: stable scoped slots, only need to normalize once
+      return prevSlots
     } else {
       res = {};
       for (var key in slots) {
         if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(slots[key]);
+          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
         }
       }
     }
@@ -7515,18 +7526,36 @@
         res[key$1] = proxyNormalSlot(normalSlots, key$1);
       }
     }
-    def(res, '_normalized', true);
+    // avoriaz seems to mock a non-extensible $scopedSlots object
+    // and when that is passed down this would cause an error
+    if (slots && Object.isExtensible(slots)) {
+      (slots)._normalized = res;
+    }
     def(res, '$stable', slots ? !!slots.$stable : true);
     return res
   }
 
-  function normalizeScopedSlot(fn) {
-    return function (scope) {
-      var res = fn(scope);
-      return res && typeof res === 'object' && !Array.isArray(res)
+  function normalizeScopedSlot(normalSlots, key, fn) {
+    var normalized = function (scope) {
+      var res = fn(scope || {});
+      res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
-        : normalizeChildren(res)
+        : normalizeChildren(res);
+      return res && res.length === 0
+        ? undefined
+        : res
+    };
+    // this is a slot using the new v-slot syntax without scope. although it is
+    // compiled as a scoped slot, render fn users would expect it to be present
+    // on this.$slots because the usage is semantically a normal slot.
+    if (fn.proxy) {
+      Object.defineProperty(normalSlots, key, {
+        get: normalized,
+        enumerable: true,
+        configurable: true
+      });
     }
+    return normalized
   }
 
   function proxyNormalSlot(slots, key) {
@@ -7955,6 +7984,8 @@
     parent,
     Ctor
   ) {
+    var this$1 = this;
+
     var options = Ctor.options;
     // ensure the createElement function in functional components
     // gets a unique context - this is necessary for correct named slot check
@@ -7980,7 +8011,15 @@
     this.parent = parent;
     this.listeners = data.on || emptyObject;
     this.injections = resolveInject(options.inject, parent);
-    this.slots = function () { return resolveSlots(children, parent); };
+    this.slots = function () {
+      if (!this$1.$slots) {
+        normalizeScopedSlots(
+          data.scopedSlots,
+          this$1.$slots = resolveSlots(children, parent)
+        );
+      }
+      return this$1.$slots
+    };
 
     Object.defineProperty(this, 'scopedSlots', ({
       enumerable: true,
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index cfde803378a..16c32179757 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -5309,7 +5309,9 @@ function genScopedSlot (
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
+  // reverse proxy v-slot without scope on this.$slots
+  var reverseProxy = slotScope ? "" : ",proxy:true";
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
 }
 
 function genChildren (
@@ -7136,6 +7138,10 @@ function resolveScopedSlots (
     if (Array.isArray(slot)) {
       resolveScopedSlots(slot, hasDynamicKeys, res);
     } else if (slot) {
+      // marker for reverse proxying v-slot without scope on this.$slots
+      if (slot.proxy) {
+        slot.fn.proxy = true;
+      }
       res[slot.key] = slot.fn;
     }
   }
@@ -7244,18 +7250,23 @@ function isWhitespace (node) {
 
 function normalizeScopedSlots (
   slots,
-  normalSlots
+  normalSlots,
+  prevSlots
 ) {
   var res;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
-    return slots
+    // fast path 1: child component re-render only, parent did not change
+    return slots._normalized
+  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
+    // fast path 2: stable scoped slots, only need to normalize once
+    return prevSlots
   } else {
     res = {};
     for (var key in slots) {
       if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(slots[key]);
+        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
       }
     }
   }
@@ -7265,18 +7276,36 @@ function normalizeScopedSlots (
       res[key$1] = proxyNormalSlot(normalSlots, key$1);
     }
   }
-  def(res, '_normalized', true);
+  // avoriaz seems to mock a non-extensible $scopedSlots object
+  // and when that is passed down this would cause an error
+  if (slots && Object.isExtensible(slots)) {
+    (slots)._normalized = res;
+  }
   def(res, '$stable', slots ? !!slots.$stable : true);
   return res
 }
 
-function normalizeScopedSlot(fn) {
-  return function (scope) {
-    var res = fn(scope);
-    return res && typeof res === 'object' && !Array.isArray(res)
+function normalizeScopedSlot(normalSlots, key, fn) {
+  var normalized = function (scope) {
+    var res = fn(scope || {});
+    res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
-      : normalizeChildren(res)
+      : normalizeChildren(res);
+    return res && res.length === 0
+      ? undefined
+      : res
+  };
+  // this is a slot using the new v-slot syntax without scope. although it is
+  // compiled as a scoped slot, render fn users would expect it to be present
+  // on this.$slots because the usage is semantically a normal slot.
+  if (fn.proxy) {
+    Object.defineProperty(normalSlots, key, {
+      get: normalized,
+      enumerable: true,
+      configurable: true
+    });
   }
+  return normalized
 }
 
 function proxyNormalSlot(slots, key) {
@@ -7705,6 +7734,8 @@ function FunctionalRenderContext (
   parent,
   Ctor
 ) {
+  var this$1 = this;
+
   var options = Ctor.options;
   // ensure the createElement function in functional components
   // gets a unique context - this is necessary for correct named slot check
@@ -7730,7 +7761,15 @@ function FunctionalRenderContext (
   this.parent = parent;
   this.listeners = data.on || emptyObject;
   this.injections = resolveInject(options.inject, parent);
-  this.slots = function () { return resolveSlots(children, parent); };
+  this.slots = function () {
+    if (!this$1.$slots) {
+      normalizeScopedSlots(
+        data.scopedSlots,
+        this$1.$slots = resolveSlots(children, parent)
+      );
+    }
+    return this$1.$slots
+  };
 
   Object.defineProperty(this, 'scopedSlots', ({
     enumerable: true,
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 386b3c2c98e..50074cc9677 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e,t=(e=require("he"))&&"object"==typeof e&&"default"in e?e.default:e,r=Object.freeze({});function n(e){return null==e}function i(e){return null!=e}function o(e){return!0===e}function a(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function s(e){return null!==e&&"object"==typeof e}var c=Object.prototype.toString;function u(e){return"[object Object]"===c.call(e)}function l(e){return i(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function f(e){return null==e?"":Array.isArray(e)||u(e)&&e.toString===c?JSON.stringify(e,null,2):String(e)}function p(e){var t=parseFloat(e);return isNaN(t)?e:t}function d(e,t){for(var r=Object.create(null),n=e.split(","),i=0;i<n.length;i++)r[n[i]]=!0;return t?function(e){return r[e.toLowerCase()]}:function(e){return r[e]}}var v=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(r){return t[r]||(t[r]=e(r))}}var b=/-(\w)/g,_=g(function(e){return e.replace(b,function(e,t){return t?t.toUpperCase():""})}),w=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),x=/\B([A-Z])/g,S=g(function(e){return e.replace(x,"-$1").toLowerCase()});Function.prototype.bind;function $(e,t){for(var r in t)e[r]=t[r];return e}function A(e){for(var t={},r=0;r<e.length;r++)e[r]&&$(t,e[r]);return t}function O(e,t,r){}var k=function(e,t,r){return!1},C=function(e){return e};function T(e,t){if(e===t)return!0;var r=s(e),n=s(t);if(!r||!n)return!r&&!n&&String(e)===String(t);try{var i=Array.isArray(e),o=Array.isArray(t);if(i&&o)return e.length===t.length&&e.every(function(e,r){return T(e,t[r])});if(e instanceof Date&&t instanceof Date)return e.getTime()===t.getTime();if(i||o)return!1;var a=Object.keys(e),c=Object.keys(t);return a.length===c.length&&a.every(function(r){return 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Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.js($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var so=require("path"),co=require("serialize-javascript"),uo=function(e){this.options=e,this.inject=!1!==e.inject;var t=e.template;if(this.parsedTemplate=t?"string"==typeof t?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:io(e.slice(0,r),oo),neck:io(e.slice(r,n),oo),tail:io(e.slice(n+t.length),oo)}}(t):t:null,this.serialize=e.serializer||function(e){return co(e,{isJSON:!0})},e.clientManifest){var r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(lo),this.prefetchFiles=(r.async||[]).map(lo),this.mapFiles=ao(r)}};function lo(e){var t=e.replace(/\?.*/,""),r=so.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:fo(r)}}function fo(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}uo.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},uo.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},uo.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},uo.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},uo.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},uo.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},uo.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},uo.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},uo.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return to(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return to(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},uo.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(lo)}return e._mappedFiles},uo.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new no(this,this.parsedTemplate,e||{})};var po=require("vm"),vo=require("path"),ho=require("resolve"),mo=require("module");function yo(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function go(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=mo.wrap(r),o=new po.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=vo.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=ho.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function bo(e,t,r,n){var i,o,a=go(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,yo(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?yo():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var _o=require("source-map").SourceMapConsumer,wo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function xo(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(wo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(wo,c)}return e}return e}(e,t)}).join("\n"))}var So=require("fs"),$o=require("path"),Ao=require("stream").PassThrough,Oo="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function ko(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=eo(t,r,n,a),p=new uo({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=ro()).promise,r=n.cb);var a="",s=ht(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new mt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ut,canBeLeftOpenTag:lt,modules:ot,directives:$(ct,e.directives)}))}process.env.VUE_ENV="server";var Co=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&$o.isAbsolute(t)){if(!So.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||$o.dirname(t),t=So.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new _o(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(Oo)}else{if("string"!=typeof t)throw new Error(Oo);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=bo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=ro()).promise,t=r.cb),u(e).catch(function(e){xo(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){xo(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Ao;return u(e).catch(function(e){xo(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){xo(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(ko);exports.createRenderer=ko,exports.createBundleRenderer=Co;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 297e9ccd30d..c69958b328b 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 77f6de7b71c..96722ee4cd0 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -4619,7 +4619,9 @@
           ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
           : genChildren(el, state) || 'undefined'
         : genElement(el, state)) + "}";
-    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
+    // reverse proxy v-slot without scope on this.$slots
+    var reverseProxy = slotScope ? "" : ",proxy:true";
+    return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
   }
 
   function genChildren (
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 570a0d632bc..9b0708d62ef 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -4252,7 +4252,9 @@ function genScopedSlot (
         ? ("(" + (el.if) + ")?" + (genChildren(el, state) || 'undefined') + ":undefined")
         : genChildren(el, state) || 'undefined'
       : genElement(el, state)) + "}";
-  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + "}")
+  // reverse proxy v-slot without scope on this.$slots
+  var reverseProxy = slotScope ? "" : ",proxy:true";
+  return ("{key:" + (el.slotTarget || "\"default\"") + ",fn:" + fn + reverseProxy + "}")
 }
 
 function genChildren (
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 7d0354a9e85..35adf70c6c4 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From c1989500450c06cde7750850c87a6082c0725b54 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 8 Feb 2019 16:44:50 -0500
Subject: [PATCH 807/911] build: release 2.6.4

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 7f52b62e2ca..03b1b53b4cc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.3",
+  "version": "2.6.4",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 0bad7e2a3508b55abaa8aec2a1bd9c1127305cb4 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 9 Feb 2019 01:16:41 -0500
Subject: [PATCH 808/911] fix: bail out of event blocking for iOS bug

close #9462
---
 src/platforms/web/runtime/modules/events.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index d030f55d3bc..e55322586a2 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -61,9 +61,17 @@ function add (
     const original = handler
     handler = original._wrapper = function (e) {
       if (
+        // no bubbling, should always fire.
+        // this is just a safety net in case event.timeStamp is unreliable in
+        // certain weird environments...
+        e.target === e.currentTarget ||
+        // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
+        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+        e.timeStamp === 0 ||
         // #9448 bail if event is fired in another document in a multi-page
-        // electron/nw.js app
+        // electron/nw.js app, since event.timeStamp will be using a different
+        // starting reference
         e.target.ownerDocument !== document
       ) {
         return original.apply(this, arguments)

From 060686d6ea4d013129b4d2e93d7d2e5c93e09686 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 10 Feb 2019 22:23:22 -0500
Subject: [PATCH 809/911] fix: do not cache scoped slots when mixed with normal
 slots

---
 .../vdom/helpers/normalize-scoped-slots.js    | 10 ++++++--
 .../component/component-scoped-slot.spec.js   | 25 +++++++++++++++++++
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index e4a54f1fbff..813f570589d 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -15,8 +15,14 @@ export function normalizeScopedSlots (
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
-  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-    // fast path 2: stable scoped slots, only need to normalize once
+  } else if (
+    slots.$stable &&
+    prevSlots &&
+    prevSlots !== emptyObject &&
+    Object.keys(normalSlots).length === 0
+  ) {
+    // fast path 2: stable scoped slots w/ no normal slots to proxy,
+    // only need to normalize once
     return prevSlots
   } else {
     res = {}
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 3bf91c087c9..b87b3600099 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1103,4 +1103,29 @@ describe('Component scoped slot', () => {
     }).$mount()
     expect(vm.$el.textContent).toBe('hello')
   })
+
+  it('should not cache scoped slot normalzation when there are a mix of normal and scoped slots', done => {
+    const foo = {
+      template: `<div><slot name="foo" /> <slot name="bar" /></div>`
+    }
+
+    const vm = new Vue({
+      data: {
+        msg: 'foo'
+      },
+      template: `
+        <foo>
+          <div slot="foo">{{ msg }}</div>
+          <template #bar><div>bar</div></template>
+        </foo>
+      `,
+      components: { foo }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe(`foo bar`)
+    vm.msg = 'baz'
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe(`baz bar`)
+    }).then(done)
+  })
 })

From e7d49cdcf2fd9a612e0dac7a7bea318824210881 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 10 Feb 2019 22:24:18 -0500
Subject: [PATCH 810/911] fix: allow passing multiple arguments to scoped slot

fix #9468

Note: the usage is NOT recommended
---
 src/core/vdom/helpers/normalize-scoped-slots.js  |  4 ++--
 .../component/component-scoped-slot.spec.js      | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 813f570589d..49c4e2effad 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -48,8 +48,8 @@ export function normalizeScopedSlots (
 }
 
 function normalizeScopedSlot(normalSlots, key, fn) {
-  const normalized = scope => {
-    let res = fn(scope || {})
+  const normalized = function () {
+    let res = arguments.length ? fn.apply(null, arguments) : fn({})
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index b87b3600099..30e51b9393b 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1128,4 +1128,20 @@ describe('Component scoped slot', () => {
       expect(vm.$el.textContent).toBe(`baz bar`)
     }).then(done)
   })
+
+  // #9468
+  it('should support passing multiple args to scoped slot function', () => {
+    const foo = {
+      render() {
+        return this.$scopedSlots.default('foo', 'bar')
+      }
+    }
+
+    const vm = new Vue({
+      template: `<foo v-slot="foo, bar">{{ foo }} {{ bar }}</foo>`,
+      components: { foo }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('foo bar')
+  })
 })

From 1489b99f24da78b9023cbe031517d99f0a61c85c Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Feb 2019 00:14:30 -0500
Subject: [PATCH 811/911] build: build 2.6.5

---
 dist/vue.common.dev.js                      | 28 +++++++++++++++------
 dist/vue.common.prod.js                     |  4 +--
 dist/vue.esm.browser.js                     | 28 +++++++++++++++------
 dist/vue.esm.browser.min.js                 |  4 +--
 dist/vue.esm.js                             | 28 +++++++++++++++------
 dist/vue.js                                 | 28 +++++++++++++++------
 dist/vue.min.js                             |  4 +--
 dist/vue.runtime.common.dev.js              | 28 +++++++++++++++------
 dist/vue.runtime.common.prod.js             |  4 +--
 dist/vue.runtime.esm.js                     | 28 +++++++++++++++------
 dist/vue.runtime.js                         | 28 +++++++++++++++------
 dist/vue.runtime.min.js                     |  4 +--
 packages/vue-server-renderer/basic.js       | 14 ++++++++---
 packages/vue-server-renderer/build.dev.js   | 14 ++++++++---
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/package.json |  2 +-
 17 files changed, 180 insertions(+), 70 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index f677623b111..9ca2f970719 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2539,8 +2539,14 @@ function normalizeScopedSlots (
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
-  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-    // fast path 2: stable scoped slots, only need to normalize once
+  } else if (
+    slots.$stable &&
+    prevSlots &&
+    prevSlots !== emptyObject &&
+    Object.keys(normalSlots).length === 0
+  ) {
+    // fast path 2: stable scoped slots w/ no normal slots to proxy,
+    // only need to normalize once
     return prevSlots
   } else {
     res = {};
@@ -2566,8 +2572,8 @@ function normalizeScopedSlots (
 }
 
 function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    var res = fn(scope || {});
+  var normalized = function () {
+    var res = arguments.length ? fn.apply(null, arguments) : fn({});
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
@@ -5373,7 +5379,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.4';
+Vue.version = '2.6.5';
 
 /*  */
 
@@ -7459,9 +7465,17 @@ function add$1 (
     var original = handler;
     handler = original._wrapper = function (e) {
       if (
+        // no bubbling, should always fire.
+        // this is just a safety net in case event.timeStamp is unreliable in
+        // certain weird environments...
+        e.target === e.currentTarget ||
+        // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
+        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+        e.timeStamp === 0 ||
         // #9448 bail if event is fired in another document in a multi-page
-        // electron/nw.js app
+        // electron/nw.js app, since event.timeStamp will be using a different
+        // starting reference
         e.target.ownerDocument !== document
       ) {
         return original.apply(this, arguments)
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index 79a0a5d9c88..83f0ca5e8af 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 27114c236cb..31f5d7f43b9 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2567,8 +2567,14 @@ function normalizeScopedSlots (
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
-  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-    // fast path 2: stable scoped slots, only need to normalize once
+  } else if (
+    slots.$stable &&
+    prevSlots &&
+    prevSlots !== emptyObject &&
+    Object.keys(normalSlots).length === 0
+  ) {
+    // fast path 2: stable scoped slots w/ no normal slots to proxy,
+    // only need to normalize once
     return prevSlots
   } else {
     res = {};
@@ -2594,8 +2600,8 @@ function normalizeScopedSlots (
 }
 
 function normalizeScopedSlot(normalSlots, key, fn) {
-  const normalized = scope => {
-    let res = fn(scope || {});
+  const normalized = function () {
+    let res = arguments.length ? fn.apply(null, arguments) : fn({});
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
@@ -5404,7 +5410,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.4';
+Vue.version = '2.6.5';
 
 /*  */
 
@@ -7482,9 +7488,17 @@ function add$1 (
     const original = handler;
     handler = original._wrapper = function (e) {
       if (
+        // no bubbling, should always fire.
+        // this is just a safety net in case event.timeStamp is unreliable in
+        // certain weird environments...
+        e.target === e.currentTarget ||
+        // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
+        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+        e.timeStamp === 0 ||
         // #9448 bail if event is fired in another document in a multi-page
-        // electron/nw.js app
+        // electron/nw.js app, since event.timeStamp will be using a different
+        // starting reference
         e.target.ownerDocument !== document
       ) {
         return original.apply(this, arguments)
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 88cae94b236..ea00ca1440f 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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${ji(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Mi(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ii(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${ji(t,e)},${e.onceId++},${n})`:ji(t,e)}return Li(t,e)}function Ii(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Mi(t,n):ji(t,n)}}(t.ifConditions.slice(),e,n,o)}function Di(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||ji)(t,e)}`+"})"}function Pi(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Ui(t.attrs)},`),t.props&&(n+=`domProps:${Ui(t.props)},`),t.events&&(n+=`${ki(t.events,!1)},`),t.nativeEvents&&(n+=`${ki(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e,n){let o=Object.keys(e).some(t=>{const n=e[t];return n.slotTargetDynamic||n.if||n.for});if(!o){let e=t.parent;for(;e;){if(e.slotScope&&e.slotScope!==qs){o=!0;break}e=e.parent}}return`scopedSlots:_u([${Object.keys(e).map(t=>Ri(e[t],n)).join(",")}]${o?",true":""})`}(t,t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(n&&1===n.type){const t=Ni(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Ui(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Ri(t,e){const n=t.attrsMap["slot-scope"];if(t.if&&!t.ifProcessed&&!n)return Ii(t,e,Ri,"null");if(t.for&&!t.forProcessed)return Di(t,e,Ri);const o=t.slotScope===qs?"":String(t.slotScope),r=`function(${o}){`+`return ${"template"===t.tag?t.if&&n?`(${t.if})?${Fi(t,e)||"undefined"}:undefined`:Fi(t,e)||"undefined":ji(t,e)}}`,s=o?"":",proxy:true";return`{key:${t.slotTarget||'"default"'},fn:${r}${s}}`}function Fi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||ji)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Hi(r)||r.ifConditions&&r.ifConditions.some(t=>Hi(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Bi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Hi(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Bi(t,e){return 1===t.type?ji(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:zi(JSON.stringify(n.text))})`;var n,o}function Ui(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=zi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function zi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Vi(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Ki(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Vi(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Vi(t,c)),e[s]=a}}const Ji=(qi=function(t,e){const n=oi(t.trim(),e);!1!==e.optimize&&vi(n,e);const o=Ni(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=qi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Ki(e)}});var qi;const{compile:Wi,compileToFunctions:Zi}=Ji(hi);let Gi;function Xi(t){return(Gi=Gi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Gi.innerHTML.indexOf("&#10;")>0}const Yi=!!U&&Xi(!1),Qi=!!U&&Xi(!0),ta=v(t=>{const e=Kn(t);return e&&e.innerHTML}),ea=mn.prototype.$mount;mn.prototype.$mount=function(t,e){if((t=t&&Kn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=ta(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Zi(e,{outputSourceRange:!1,shouldDecodeNewlines:Yi,shouldDecodeNewlinesForHref:Qi,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return ea.call(this,t,e)},mn.compile=Zi;export default mn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index d1e31bb2941..ea42ed8fe93 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2545,8 +2545,14 @@ function normalizeScopedSlots (
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
-  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-    // fast path 2: stable scoped slots, only need to normalize once
+  } else if (
+    slots.$stable &&
+    prevSlots &&
+    prevSlots !== emptyObject &&
+    Object.keys(normalSlots).length === 0
+  ) {
+    // fast path 2: stable scoped slots w/ no normal slots to proxy,
+    // only need to normalize once
     return prevSlots
   } else {
     res = {};
@@ -2572,8 +2578,8 @@ function normalizeScopedSlots (
 }
 
 function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    var res = fn(scope || {});
+  var normalized = function () {
+    var res = arguments.length ? fn.apply(null, arguments) : fn({});
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
@@ -5393,7 +5399,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.4';
+Vue.version = '2.6.5';
 
 /*  */
 
@@ -7481,9 +7487,17 @@ function add$1 (
     var original = handler;
     handler = original._wrapper = function (e) {
       if (
+        // no bubbling, should always fire.
+        // this is just a safety net in case event.timeStamp is unreliable in
+        // certain weird environments...
+        e.target === e.currentTarget ||
+        // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
+        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+        e.timeStamp === 0 ||
         // #9448 bail if event is fired in another document in a multi-page
-        // electron/nw.js app
+        // electron/nw.js app, since event.timeStamp will be using a different
+        // starting reference
         e.target.ownerDocument !== document
       ) {
         return original.apply(this, arguments)
diff --git a/dist/vue.js b/dist/vue.js
index 6fe98807b29..1eada3c94b8 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2543,8 +2543,14 @@
     } else if (slots._normalized) {
       // fast path 1: child component re-render only, parent did not change
       return slots._normalized
-    } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-      // fast path 2: stable scoped slots, only need to normalize once
+    } else if (
+      slots.$stable &&
+      prevSlots &&
+      prevSlots !== emptyObject &&
+      Object.keys(normalSlots).length === 0
+    ) {
+      // fast path 2: stable scoped slots w/ no normal slots to proxy,
+      // only need to normalize once
       return prevSlots
     } else {
       res = {};
@@ -2570,8 +2576,8 @@
   }
 
   function normalizeScopedSlot(normalSlots, key, fn) {
-    var normalized = function (scope) {
-      var res = fn(scope || {});
+    var normalized = function () {
+      var res = arguments.length ? fn.apply(null, arguments) : fn({});
       res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res);
@@ -5377,7 +5383,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.4';
+  Vue.version = '2.6.5';
 
   /*  */
 
@@ -7463,9 +7469,17 @@
       var original = handler;
       handler = original._wrapper = function (e) {
         if (
+          // no bubbling, should always fire.
+          // this is just a safety net in case event.timeStamp is unreliable in
+          // certain weird environments...
+          e.target === e.currentTarget ||
+          // event is fired after handler attachment
           e.timeStamp >= attachedTimestamp ||
+          // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+          e.timeStamp === 0 ||
           // #9448 bail if event is fired in another document in a multi-page
-          // electron/nw.js app
+          // electron/nw.js app, since event.timeStamp will be using a different
+          // starting reference
           e.target.ownerDocument !== document
         ) {
           return original.apply(this, arguments)
diff --git a/dist/vue.min.js b/dist/vue.min.js
index e890c3b6955..2bd7ac15dbf 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index f414da795c5..8d902d01ad4 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2530,8 +2530,14 @@ function normalizeScopedSlots (
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
-  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-    // fast path 2: stable scoped slots, only need to normalize once
+  } else if (
+    slots.$stable &&
+    prevSlots &&
+    prevSlots !== emptyObject &&
+    Object.keys(normalSlots).length === 0
+  ) {
+    // fast path 2: stable scoped slots w/ no normal slots to proxy,
+    // only need to normalize once
     return prevSlots
   } else {
     res = {};
@@ -2557,8 +2563,8 @@ function normalizeScopedSlots (
 }
 
 function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    var res = fn(scope || {});
+  var normalized = function () {
+    var res = arguments.length ? fn.apply(null, arguments) : fn({});
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
@@ -5364,7 +5370,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.4';
+Vue.version = '2.6.5';
 
 /*  */
 
@@ -6811,9 +6817,17 @@ function add$1 (
     var original = handler;
     handler = original._wrapper = function (e) {
       if (
+        // no bubbling, should always fire.
+        // this is just a safety net in case event.timeStamp is unreliable in
+        // certain weird environments...
+        e.target === e.currentTarget ||
+        // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
+        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+        e.timeStamp === 0 ||
         // #9448 bail if event is fired in another document in a multi-page
-        // electron/nw.js app
+        // electron/nw.js app, since event.timeStamp will be using a different
+        // starting reference
         e.target.ownerDocument !== document
       ) {
         return original.apply(this, arguments)
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index dc56f25d1cb..bd7fa28e793 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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lo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){lo.componentUpdated(t,e,n)}):fo(t,e,n.context),t._vOptions=[].map.call(t.options,ho)):("textarea"===n.tag||qn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",mo),t.addEventListener("compositionend",yo),t.addEventListener("change",yo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){fo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,ho);if(o.some(function(t,e){return!E(t,r[e])}))(t.multiple?e.value.some(function(t){return vo(t,o)}):e.value!==e.oldValue&&vo(e.value,o))&&go(t,"change")}}};function fo(t,e,n){po(t,e,n),(W||K)&&setTimeout(function(){po(t,e,n)},0)}function po(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=T(r,ho(a))>-1,a.selected!==i&&(a.selected=i);else if(E(ho(a),r))return 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t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=$o(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function jo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function Eo(t){t.data.newPos=t.elm.getBoundingClientRect()}function To(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var Io={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=$o(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(jo),t.forEach(Eo),t.forEach(To),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};_n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=Bn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return zn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(Bn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,Io),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),module.exports=_n;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 1727b901c4a..c6d7eafc9d3 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2536,8 +2536,14 @@ function normalizeScopedSlots (
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
-  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-    // fast path 2: stable scoped slots, only need to normalize once
+  } else if (
+    slots.$stable &&
+    prevSlots &&
+    prevSlots !== emptyObject &&
+    Object.keys(normalSlots).length === 0
+  ) {
+    // fast path 2: stable scoped slots w/ no normal slots to proxy,
+    // only need to normalize once
     return prevSlots
   } else {
     res = {};
@@ -2563,8 +2569,8 @@ function normalizeScopedSlots (
 }
 
 function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    var res = fn(scope || {});
+  var normalized = function () {
+    var res = arguments.length ? fn.apply(null, arguments) : fn({});
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
@@ -5384,7 +5390,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.4';
+Vue.version = '2.6.5';
 
 /*  */
 
@@ -6833,9 +6839,17 @@ function add$1 (
     var original = handler;
     handler = original._wrapper = function (e) {
       if (
+        // no bubbling, should always fire.
+        // this is just a safety net in case event.timeStamp is unreliable in
+        // certain weird environments...
+        e.target === e.currentTarget ||
+        // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
+        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+        e.timeStamp === 0 ||
         // #9448 bail if event is fired in another document in a multi-page
-        // electron/nw.js app
+        // electron/nw.js app, since event.timeStamp will be using a different
+        // starting reference
         e.target.ownerDocument !== document
       ) {
         return original.apply(this, arguments)
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 284ee0ae870..a771dc201cc 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2534,8 +2534,14 @@
     } else if (slots._normalized) {
       // fast path 1: child component re-render only, parent did not change
       return slots._normalized
-    } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-      // fast path 2: stable scoped slots, only need to normalize once
+    } else if (
+      slots.$stable &&
+      prevSlots &&
+      prevSlots !== emptyObject &&
+      Object.keys(normalSlots).length === 0
+    ) {
+      // fast path 2: stable scoped slots w/ no normal slots to proxy,
+      // only need to normalize once
       return prevSlots
     } else {
       res = {};
@@ -2561,8 +2567,8 @@
   }
 
   function normalizeScopedSlot(normalSlots, key, fn) {
-    var normalized = function (scope) {
-      var res = fn(scope || {});
+    var normalized = function () {
+      var res = arguments.length ? fn.apply(null, arguments) : fn({});
       res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res);
@@ -5368,7 +5374,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.4';
+  Vue.version = '2.6.5';
 
   /*  */
 
@@ -6815,9 +6821,17 @@
       var original = handler;
       handler = original._wrapper = function (e) {
         if (
+          // no bubbling, should always fire.
+          // this is just a safety net in case event.timeStamp is unreliable in
+          // certain weird environments...
+          e.target === e.currentTarget ||
+          // event is fired after handler attachment
           e.timeStamp >= attachedTimestamp ||
+          // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
+          e.timeStamp === 0 ||
           // #9448 bail if event is fired in another document in a multi-page
-          // electron/nw.js app
+          // electron/nw.js app, since event.timeStamp will be using a different
+          // starting reference
           e.target.ownerDocument !== document
         ) {
           return original.apply(this, arguments)
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index e00a3c4aacd..1232a0818f6 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.4
+ * Vue.js v2.6.5
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=$o(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var 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t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),_n});
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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index ac8e36afab3..d38fca9a4e2 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -7509,8 +7509,14 @@
     } else if (slots._normalized) {
       // fast path 1: child component re-render only, parent did not change
       return slots._normalized
-    } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-      // fast path 2: stable scoped slots, only need to normalize once
+    } else if (
+      slots.$stable &&
+      prevSlots &&
+      prevSlots !== emptyObject &&
+      Object.keys(normalSlots).length === 0
+    ) {
+      // fast path 2: stable scoped slots w/ no normal slots to proxy,
+      // only need to normalize once
       return prevSlots
     } else {
       res = {};
@@ -7536,8 +7542,8 @@
   }
 
   function normalizeScopedSlot(normalSlots, key, fn) {
-    var normalized = function (scope) {
-      var res = fn(scope || {});
+    var normalized = function () {
+      var res = arguments.length ? fn.apply(null, arguments) : fn({});
       res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res);
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 16c32179757..d702270964a 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -7259,8 +7259,14 @@ function normalizeScopedSlots (
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
-  } else if (slots.$stable && prevSlots && prevSlots !== emptyObject) {
-    // fast path 2: stable scoped slots, only need to normalize once
+  } else if (
+    slots.$stable &&
+    prevSlots &&
+    prevSlots !== emptyObject &&
+    Object.keys(normalSlots).length === 0
+  ) {
+    // fast path 2: stable scoped slots w/ no normal slots to proxy,
+    // only need to normalize once
     return prevSlots
   } else {
     res = {};
@@ -7286,8 +7292,8 @@ function normalizeScopedSlots (
 }
 
 function normalizeScopedSlot(normalSlots, key, fn) {
-  var normalized = function (scope) {
-    var res = fn(scope || {});
+  var normalized = function () {
+    var res = arguments.length ? fn.apply(null, arguments) : fn({});
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 50074cc9677..be3b0b5e168 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(lo),this.prefetchFiles=(r.async||[]).map(lo),this.mapFiles=ao(r)}};function lo(e){var t=e.replace(/\?.*/,""),r=so.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:fo(r)}}function fo(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}uo.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},uo.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},uo.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},uo.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},uo.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},uo.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},uo.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},uo.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},uo.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return to(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return to(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},uo.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(lo)}return e._mappedFiles},uo.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new no(this,this.parsedTemplate,e||{})};var po=require("vm"),vo=require("path"),ho=require("resolve"),mo=require("module");function yo(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function go(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=mo.wrap(r),o=new po.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=vo.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=ho.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function bo(e,t,r,n){var i,o,a=go(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,yo(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?yo():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var _o=require("source-map").SourceMapConsumer,wo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function xo(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(wo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(wo,c)}return e}return e}(e,t)}).join("\n"))}var So=require("fs"),$o=require("path"),Ao=require("stream").PassThrough,Oo="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function ko(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=eo(t,r,n,a),p=new uo({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=ro()).promise,r=n.cb);var a="",s=ht(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new mt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ut,canBeLeftOpenTag:lt,modules:ot,directives:$(ct,e.directives)}))}process.env.VUE_ENV="server";var Co=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&$o.isAbsolute(t)){if(!So.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||$o.dirname(t),t=So.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new _o(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(Oo)}else{if("string"!=typeof t)throw new Error(Oo);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=bo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=ro()).promise,t=r.cb),u(e).catch(function(e){xo(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){xo(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Ao;return u(e).catch(function(e){xo(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){xo(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(ko);exports.createRenderer=ko,exports.createBundleRenderer=Co;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index c69958b328b..eb2c79ce12f 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.4",
+  "version": "2.6.5",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 35adf70c6c4..df282accf3b 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.4",
+  "version": "2.6.5",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 11deaa932eb51e9af11fd32e72c8cab3cd55ec67 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Feb 2019 00:14:34 -0500
Subject: [PATCH 812/911] build: release 2.6.5

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 03b1b53b4cc..be7c49b15e3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.4",
+  "version": "2.6.5",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 21fca2fffc3a75235a6656eb85ae40835e04bf69 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Feb 2019 11:30:14 -0500
Subject: [PATCH 813/911] fix: ensure scoped slot containing passed down slot
 content updates properly

---
 src/compiler/codegen/index.js                 | 17 ++++++++++-
 .../component/component-scoped-slot.spec.js   | 29 ++++++++++++++++++-
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 93ae4cbc21f..9a9a654d4cd 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -368,7 +368,12 @@ function genScopedSlots (
   // for example if the slot contains dynamic names, has v-if or v-for on them...
   let needsForceUpdate = Object.keys(slots).some(key => {
     const slot = slots[key]
-    return slot.slotTargetDynamic || slot.if || slot.for
+    return (
+      slot.slotTargetDynamic ||
+      slot.if ||
+      slot.for ||
+      containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+    )
   })
   // OR when it is inside another scoped slot (the reactivity is disconnected)
   // #9438
@@ -390,6 +395,16 @@ function genScopedSlots (
   }]${needsForceUpdate ? `,true` : ``})`
 }
 
+function containsSlotChild (el: ASTNode): boolean {
+  if (el.type === 1) {
+    if (el.tag === 'slot') {
+      return true
+    }
+    return el.children.some(containsSlotChild)
+  }
+  return false
+}
+
 function genScopedSlot (
   el: ASTElement,
   state: CodegenState
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 30e51b9393b..858f237e9bb 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1104,7 +1104,7 @@ describe('Component scoped slot', () => {
     expect(vm.$el.textContent).toBe('hello')
   })
 
-  it('should not cache scoped slot normalzation when there are a mix of normal and scoped slots', done => {
+  it('should not cache scoped slot normalization when there are a mix of normal and scoped slots', done => {
     const foo = {
       template: `<div><slot name="foo" /> <slot name="bar" /></div>`
     }
@@ -1144,4 +1144,31 @@ describe('Component scoped slot', () => {
 
     expect(vm.$el.textContent).toBe('foo bar')
   })
+
+  it('should not skip updates when a scoped slot contains parent <slot/> content', done => {
+    const inner = {
+      template: `<div><slot/></div>`
+    }
+
+    const wrapper = {
+      template: `<inner v-slot><slot/></inner>`,
+      components: { inner }
+    }
+
+    const vm = new Vue({
+      data() {
+        return {
+          ok: true
+        }
+      },
+      components: { wrapper },
+      template: `<wrapper><div>{{ ok ? 'foo' : 'bar' }}</div></wrapper>`
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe('foo')
+    vm.ok = false
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe('bar')
+    }).then(done)
+  })
 })

From 29c348f3cf60c50a52cc98123f8c54fa8f5672fc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Feb 2019 22:54:35 -0500
Subject: [PATCH 814/911] fix: fix keyCode check for Chrome autofill fake key
 events

close #9441
---
 src/compiler/codegen/events.js             |  8 +++++++-
 test/unit/modules/compiler/codegen.spec.js | 20 ++++++++++----------
 2 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 4a6f9af2358..8ce9e1b58e1 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -163,7 +163,13 @@ function genHandler (handler: ASTElementHandler | Array<ASTElementHandler>): str
 }
 
 function genKeyFilter (keys: Array<string>): string {
-  return `if(('keyCode' in $event)&&${keys.map(genFilterCode).join('&&')})return null;`
+  return (
+    // make sure the key filters only apply to KeyboardEvents
+    // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+    // key events that do not have keyCode property...
+    `if(!$event.type.indexOf('key')&&` +
+    `${keys.map(genFilterCode).join('&&')})return null;`
+  )
 }
 
 function genFilterCode (key: string): string {
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index cb96e714b9d..98c202dd252 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -363,37 +363,37 @@ describe('codegen', () => {
   it('generate events with keycode', () => {
     assertCodegen(
       '<input @input.enter="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (delete)
     assertCodegen(
       '<input @input.delete="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (esc)
     assertCodegen(
       '<input @input.esc="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"esc",27,$event.key,["Esc","Escape"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"esc",27,$event.key,["Esc","Escape"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (space)
     assertCodegen(
       '<input @input.space="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"space",32,$event.key,[" ","Spacebar"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"space",32,$event.key,[" ","Spacebar"]))return null;return onInput($event)}}})}`
     )
     // multiple keycodes (chained)
     assertCodegen(
       '<input @keydown.enter.delete="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter")&&_k($event.keyCode,"delete",[8,46],$event.key,["Backspace","Delete","Del"]))return null;return onInput($event)}}})}`
     )
     // number keycode
     assertCodegen(
       '<input @input.13="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&$event.keyCode!==13)return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&$event.keyCode!==13)return null;return onInput($event)}}})}`
     )
     // custom keycode
     assertCodegen(
       '<input @input.custom="onInput">',
-      `with(this){return _c('input',{on:{"input":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"input":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"custom",undefined,$event.key,undefined))return null;return onInput($event)}}})}`
     )
   })
 
@@ -416,12 +416,12 @@ describe('codegen', () => {
   it('generate events with generic modifiers and keycode correct order', () => {
     assertCodegen(
       '<input @keydown.enter.prevent="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.preventDefault();return onInput($event)}}})}`
     )
 
     assertCodegen(
       '<input @keydown.enter.stop="onInput">',
-      `with(this){return _c('input',{on:{"keydown":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();return onInput($event)}}})}`
+      `with(this){return _c('input',{on:{"keydown":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;$event.stopPropagation();return onInput($event)}}})}`
     )
   })
 
@@ -528,7 +528,7 @@ describe('codegen', () => {
     // with modifiers
     assertCodegen(
       `<input @keyup.enter="e=>current++">`,
-      `with(this){return _c('input',{on:{"keyup":function($event){if(('keyCode' in $event)&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return (e=>current++)($event)}}})}`
+      `with(this){return _c('input',{on:{"keyup":function($event){if(!$event.type.indexOf('key')&&_k($event.keyCode,"enter",13,$event.key,"Enter"))return null;return (e=>current++)($event)}}})}`
     )
   })
 

From ac7a5bdaed7f380d5f12626d4e7011889a43aba3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Feb 2019 23:20:04 -0500
Subject: [PATCH 815/911] build: build 2.6.6

---
 dist/vue.common.dev.js                      | 29 ++++++++++++++++++---
 dist/vue.common.prod.js                     |  4 +--
 dist/vue.esm.browser.js                     | 29 ++++++++++++++++++---
 dist/vue.esm.browser.min.js                 |  4 +--
 dist/vue.esm.js                             | 29 ++++++++++++++++++---
 dist/vue.js                                 | 29 ++++++++++++++++++---
 dist/vue.min.js                             |  4 +--
 dist/vue.runtime.common.dev.js              |  4 +--
 dist/vue.runtime.common.prod.js             |  4 +--
 dist/vue.runtime.esm.js                     |  4 +--
 dist/vue.runtime.js                         |  4 +--
 dist/vue.runtime.min.js                     |  4 +--
 packages/vue-server-renderer/basic.js       | 25 ++++++++++++++++--
 packages/vue-server-renderer/build.dev.js   | 25 ++++++++++++++++--
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 25 ++++++++++++++++--
 packages/vue-template-compiler/build.js     | 25 ++++++++++++++++--
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 211 insertions(+), 43 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 9ca2f970719..43ef0250f0d 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5379,7 +5379,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.5';
+Vue.version = '2.6.6';
 
 /*  */
 
@@ -10791,7 +10791,13 @@ function genHandler (handler) {
 }
 
 function genKeyFilter (keys) {
-  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  return (
+    // make sure the key filters only apply to KeyboardEvents
+    // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+    // key events that do not have keyCode property...
+    "if(!$event.type.indexOf('key')&&" +
+    (keys.map(genFilterCode).join('&&')) + ")return null;"
+  )
 }
 
 function genFilterCode (key) {
@@ -11154,7 +11160,12 @@ function genScopedSlots (
   // for example if the slot contains dynamic names, has v-if or v-for on them...
   var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
-    return slot.slotTargetDynamic || slot.if || slot.for
+    return (
+      slot.slotTargetDynamic ||
+      slot.if ||
+      slot.for ||
+      containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+    )
   });
   // OR when it is inside another scoped slot (the reactivity is disconnected)
   // #9438
@@ -11174,6 +11185,16 @@ function genScopedSlots (
     }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
+function containsSlotChild (el) {
+  if (el.type === 1) {
+    if (el.tag === 'slot') {
+      return true
+    }
+    return el.children.some(containsSlotChild)
+  }
+  return false
+}
+
 function genScopedSlot (
   el,
   state
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index 83f0ca5e8af..a81dcf8d081 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 31f5d7f43b9..2f74ac8b60b 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5410,7 +5410,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.5';
+Vue.version = '2.6.6';
 
 /*  */
 
@@ -10806,7 +10806,13 @@ function genHandler (handler) {
 }
 
 function genKeyFilter (keys) {
-  return `if(('keyCode' in $event)&&${keys.map(genFilterCode).join('&&')})return null;`
+  return (
+    // make sure the key filters only apply to KeyboardEvents
+    // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+    // key events that do not have keyCode property...
+    `if(!$event.type.indexOf('key')&&` +
+    `${keys.map(genFilterCode).join('&&')})return null;`
+  )
 }
 
 function genFilterCode (key) {
@@ -11213,7 +11219,12 @@ function genScopedSlots (
   // for example if the slot contains dynamic names, has v-if or v-for on them...
   let needsForceUpdate = Object.keys(slots).some(key => {
     const slot = slots[key];
-    return slot.slotTargetDynamic || slot.if || slot.for
+    return (
+      slot.slotTargetDynamic ||
+      slot.if ||
+      slot.for ||
+      containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+    )
   });
   // OR when it is inside another scoped slot (the reactivity is disconnected)
   // #9438
@@ -11235,6 +11246,16 @@ function genScopedSlots (
   }]${needsForceUpdate ? `,true` : ``})`
 }
 
+function containsSlotChild (el) {
+  if (el.type === 1) {
+    if (el.tag === 'slot') {
+      return true
+    }
+    return el.children.some(containsSlotChild)
+  }
+  return false
+}
+
 function genScopedSlot (
   el,
   state
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index ea00ca1440f..aefdb56003c 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const 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o=t.slotScope===qs?"":String(t.slotScope),r=`function(${o}){`+`return ${"template"===t.tag?t.if&&n?`(${t.if})?${Hi(t,e)||"undefined"}:undefined`:Hi(t,e)||"undefined":ji(t,e)}}`,s=o?"":",proxy:true";return`{key:${t.slotTarget||'"default"'},fn:${r}${s}}`}function Hi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||ji)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Bi(r)||r.ifConditions&&r.ifConditions.some(t=>Bi(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Ui;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Bi(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Ui(t,e){return 1===t.type?ji(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Vi(JSON.stringify(n.text))})`;var n,o}function zi(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Vi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Vi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Ki(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Ji(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Ki(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Ki(t,c)),e[s]=a}}const qi=(Wi=function(t,e){const n=oi(t.trim(),e);!1!==e.optimize&&vi(n,e);const o=Ni(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=Wi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Ji(e)}});var Wi;const{compile:Zi,compileToFunctions:Gi}=qi(hi);let Xi;function Yi(t){return(Xi=Xi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Xi.innerHTML.indexOf("&#10;")>0}const Qi=!!U&&Yi(!1),ta=!!U&&Yi(!0),ea=v(t=>{const e=Kn(t);return e&&e.innerHTML}),na=mn.prototype.$mount;mn.prototype.$mount=function(t,e){if((t=t&&Kn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=ea(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Gi(e,{outputSourceRange:!1,shouldDecodeNewlines:Qi,shouldDecodeNewlinesForHref:ta,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return na.call(this,t,e)},mn.compile=Gi;export default mn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index ea42ed8fe93..eceebfc47f2 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5399,7 +5399,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.5';
+Vue.version = '2.6.6';
 
 /*  */
 
@@ -10822,7 +10822,13 @@ function genHandler (handler) {
 }
 
 function genKeyFilter (keys) {
-  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  return (
+    // make sure the key filters only apply to KeyboardEvents
+    // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+    // key events that do not have keyCode property...
+    "if(!$event.type.indexOf('key')&&" +
+    (keys.map(genFilterCode).join('&&')) + ")return null;"
+  )
 }
 
 function genFilterCode (key) {
@@ -11188,7 +11194,12 @@ function genScopedSlots (
   // for example if the slot contains dynamic names, has v-if or v-for on them...
   var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
-    return slot.slotTargetDynamic || slot.if || slot.for
+    return (
+      slot.slotTargetDynamic ||
+      slot.if ||
+      slot.for ||
+      containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+    )
   });
   // OR when it is inside another scoped slot (the reactivity is disconnected)
   // #9438
@@ -11208,6 +11219,16 @@ function genScopedSlots (
     }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
+function containsSlotChild (el) {
+  if (el.type === 1) {
+    if (el.tag === 'slot') {
+      return true
+    }
+    return el.children.some(containsSlotChild)
+  }
+  return false
+}
+
 function genScopedSlot (
   el,
   state
diff --git a/dist/vue.js b/dist/vue.js
index 1eada3c94b8..2685a1ee560 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5383,7 +5383,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.5';
+  Vue.version = '2.6.6';
 
   /*  */
 
@@ -10795,7 +10795,13 @@
   }
 
   function genKeyFilter (keys) {
-    return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+    return (
+      // make sure the key filters only apply to KeyboardEvents
+      // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+      // key events that do not have keyCode property...
+      "if(!$event.type.indexOf('key')&&" +
+      (keys.map(genFilterCode).join('&&')) + ")return null;"
+    )
   }
 
   function genFilterCode (key) {
@@ -11158,7 +11164,12 @@
     // for example if the slot contains dynamic names, has v-if or v-for on them...
     var needsForceUpdate = Object.keys(slots).some(function (key) {
       var slot = slots[key];
-      return slot.slotTargetDynamic || slot.if || slot.for
+      return (
+        slot.slotTargetDynamic ||
+        slot.if ||
+        slot.for ||
+        containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+      )
     });
     // OR when it is inside another scoped slot (the reactivity is disconnected)
     // #9438
@@ -11178,6 +11189,16 @@
       }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
   }
 
+  function containsSlotChild (el) {
+    if (el.type === 1) {
+      if (el.tag === 'slot') {
+        return true
+      }
+      return el.children.some(containsSlotChild)
+    }
+    return false
+  }
+
   function genScopedSlot (
     el,
     state
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 2bd7ac15dbf..0cc6c8ba18a 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index 8d902d01ad4..a1c9cd2efec 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
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- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5370,7 +5370,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.5';
+Vue.version = '2.6.6';
 
 /*  */
 
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index bd7fa28e793..c48ae06e482 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index c6d7eafc9d3..1ed096dc194 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5390,7 +5390,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.5';
+Vue.version = '2.6.6';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index a771dc201cc..083ae0a5d97 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -5374,7 +5374,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.5';
+  Vue.version = '2.6.6';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index 1232a0818f6..ad386054d0d 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.5
+ * Vue.js v2.6.6
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index d38fca9a4e2..38b66c88d9b 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -5156,7 +5156,13 @@
   }
 
   function genKeyFilter (keys) {
-    return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+    return (
+      // make sure the key filters only apply to KeyboardEvents
+      // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+      // key events that do not have keyCode property...
+      "if(!$event.type.indexOf('key')&&" +
+      (keys.map(genFilterCode).join('&&')) + ")return null;"
+    )
   }
 
   function genFilterCode (key) {
@@ -5519,7 +5525,12 @@
     // for example if the slot contains dynamic names, has v-if or v-for on them...
     var needsForceUpdate = Object.keys(slots).some(function (key) {
       var slot = slots[key];
-      return slot.slotTargetDynamic || slot.if || slot.for
+      return (
+        slot.slotTargetDynamic ||
+        slot.if ||
+        slot.for ||
+        containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+      )
     });
     // OR when it is inside another scoped slot (the reactivity is disconnected)
     // #9438
@@ -5539,6 +5550,16 @@
       }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
   }
 
+  function containsSlotChild (el) {
+    if (el.type === 1) {
+      if (el.tag === 'slot') {
+        return true
+      }
+      return el.children.some(containsSlotChild)
+    }
+    return false
+  }
+
   function genScopedSlot (
     el,
     state
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index d702270964a..6dee9f5bec0 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -4906,7 +4906,13 @@ function genHandler (handler) {
 }
 
 function genKeyFilter (keys) {
-  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  return (
+    // make sure the key filters only apply to KeyboardEvents
+    // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+    // key events that do not have keyCode property...
+    "if(!$event.type.indexOf('key')&&" +
+    (keys.map(genFilterCode).join('&&')) + ")return null;"
+  )
 }
 
 function genFilterCode (key) {
@@ -5269,7 +5275,12 @@ function genScopedSlots (
   // for example if the slot contains dynamic names, has v-if or v-for on them...
   var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
-    return slot.slotTargetDynamic || slot.if || slot.for
+    return (
+      slot.slotTargetDynamic ||
+      slot.if ||
+      slot.for ||
+      containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+    )
   });
   // OR when it is inside another scoped slot (the reactivity is disconnected)
   // #9438
@@ -5289,6 +5300,16 @@ function genScopedSlots (
     }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
+function containsSlotChild (el) {
+  if (el.type === 1) {
+    if (el.tag === 'slot') {
+      return true
+    }
+    return el.children.some(containsSlotChild)
+  }
+  return false
+}
+
 function genScopedSlot (
   el,
   state
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index be3b0b5e168..b2e0f7c015b 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?go():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var wo=require("source-map").SourceMapConsumer,xo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function So(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(xo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(xo,c)}return e}return e}(e,t)}).join("\n"))}var $o=require("fs"),Ao=require("path"),Oo=require("stream").PassThrough,ko="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function Co(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=to(t,r,n,a),p=new lo({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=no()).promise,r=n.cb);var a="",s=ht(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new mt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ut,canBeLeftOpenTag:lt,modules:ot,directives:$(ct,e.directives)}))}process.env.VUE_ENV="server";var To=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&Ao.isAbsolute(t)){if(!$o.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||Ao.dirname(t),t=$o.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new wo(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(ko)}else{if("string"!=typeof t)throw new Error(ko);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=_o(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=no()).promise,t=r.cb),u(e).catch(function(e){So(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){So(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Oo;return u(e).catch(function(e){So(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){So(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(Co);exports.createRenderer=Co,exports.createBundleRenderer=To;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index eb2c79ce12f..4f301559f55 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.5",
+  "version": "2.6.6",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 96722ee4cd0..15c1c2bde38 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -4216,7 +4216,13 @@
   }
 
   function genKeyFilter (keys) {
-    return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+    return (
+      // make sure the key filters only apply to KeyboardEvents
+      // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+      // key events that do not have keyCode property...
+      "if(!$event.type.indexOf('key')&&" +
+      (keys.map(genFilterCode).join('&&')) + ")return null;"
+    )
   }
 
   function genFilterCode (key) {
@@ -4579,7 +4585,12 @@
     // for example if the slot contains dynamic names, has v-if or v-for on them...
     var needsForceUpdate = Object.keys(slots).some(function (key) {
       var slot = slots[key];
-      return slot.slotTargetDynamic || slot.if || slot.for
+      return (
+        slot.slotTargetDynamic ||
+        slot.if ||
+        slot.for ||
+        containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+      )
     });
     // OR when it is inside another scoped slot (the reactivity is disconnected)
     // #9438
@@ -4599,6 +4610,16 @@
       }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
   }
 
+  function containsSlotChild (el) {
+    if (el.type === 1) {
+      if (el.tag === 'slot') {
+        return true
+      }
+      return el.children.some(containsSlotChild)
+    }
+    return false
+  }
+
   function genScopedSlot (
     el,
     state
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 9b0708d62ef..9ff815c0908 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -3846,7 +3846,13 @@ function genHandler (handler) {
 }
 
 function genKeyFilter (keys) {
-  return ("if(('keyCode' in $event)&&" + (keys.map(genFilterCode).join('&&')) + ")return null;")
+  return (
+    // make sure the key filters only apply to KeyboardEvents
+    // #9441: can't use 'keyCode' in $event because Chrome autofill fires fake
+    // key events that do not have keyCode property...
+    "if(!$event.type.indexOf('key')&&" +
+    (keys.map(genFilterCode).join('&&')) + ")return null;"
+  )
 }
 
 function genFilterCode (key) {
@@ -4212,7 +4218,12 @@ function genScopedSlots (
   // for example if the slot contains dynamic names, has v-if or v-for on them...
   var needsForceUpdate = Object.keys(slots).some(function (key) {
     var slot = slots[key];
-    return slot.slotTargetDynamic || slot.if || slot.for
+    return (
+      slot.slotTargetDynamic ||
+      slot.if ||
+      slot.for ||
+      containsSlotChild(slot) // is passing down slot from parent which may be dynamic
+    )
   });
   // OR when it is inside another scoped slot (the reactivity is disconnected)
   // #9438
@@ -4232,6 +4243,16 @@ function genScopedSlots (
     }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
 }
 
+function containsSlotChild (el) {
+  if (el.type === 1) {
+    if (el.tag === 'slot') {
+      return true
+    }
+    return el.children.some(containsSlotChild)
+  }
+  return false
+}
+
 function genScopedSlot (
   el,
   state
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index df282accf3b..5010a2817f0 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.5",
+  "version": "2.6.6",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From a702d1947b856cf3b9d6ca5fb27b2271a78a9a5b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 11 Feb 2019 23:20:09 -0500
Subject: [PATCH 816/911] build: release 2.6.6

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index be7c49b15e3..db6c4af5f21 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.5",
+  "version": "2.6.6",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From ee29e41ef469b3ca3c793f04289075e3b128447f Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Tue, 19 Feb 2019 02:56:17 +0800
Subject: [PATCH 817/911] fix: avoid possible infinite loop by accessing
 observables in error handler (#9489)

---
 src/core/util/error.js                        | 32 ++++++++++------
 .../features/options/errorCaptured.spec.js    | 38 +++++++++++++++++++
 2 files changed, 58 insertions(+), 12 deletions(-)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index e4604ecf230..dffd8d84c26 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -4,25 +4,33 @@ import config from '../config'
 import { warn } from './debug'
 import { inBrowser, inWeex } from './env'
 import { isPromise } from 'shared/util'
+import { pushTarget, popTarget } from '../observer/dep'
 
 export function handleError (err: Error, vm: any, info: string) {
-  if (vm) {
-    let cur = vm
-    while ((cur = cur.$parent)) {
-      const hooks = cur.$options.errorCaptured
-      if (hooks) {
-        for (let i = 0; i < hooks.length; i++) {
-          try {
-            const capture = hooks[i].call(cur, err, vm, info) === false
-            if (capture) return
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook')
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget()
+  try {
+    if (vm) {
+      let cur = vm
+      while ((cur = cur.$parent)) {
+        const hooks = cur.$options.errorCaptured
+        if (hooks) {
+          for (let i = 0; i < hooks.length; i++) {
+            try {
+              const capture = hooks[i].call(cur, err, vm, info) === false
+              if (capture) return
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook')
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info)
+  } finally {
+    popTarget()
   }
-  globalHandleError(err, vm, info)
 }
 
 export function invokeWithErrorHandling (
diff --git a/test/unit/features/options/errorCaptured.spec.js b/test/unit/features/options/errorCaptured.spec.js
index d16c057da6f..3da13b9ed38 100644
--- a/test/unit/features/options/errorCaptured.spec.js
+++ b/test/unit/features/options/errorCaptured.spec.js
@@ -209,4 +209,42 @@ describe('Options errorCaptured', () => {
 
     expect(calls).toEqual([1, 2, 3])
   })
+
+  // ref: https://github.com/vuejs/vuex/issues/1505
+  it('should not add watchers to render deps if they are referred from errorCaptured callback', done => {
+    const store = new Vue({
+      data: {
+        errors: []
+      }
+    })
+
+    const Child = {
+      computed: {
+        test() {
+          throw new Error('render error')
+        }
+      },
+
+      render(h) {
+        return h('div', {
+          attrs: {
+            'data-test': this.test
+          }
+        })
+      }
+    }
+
+    new Vue({
+      errorCaptured(error) {
+        store.errors.push(error)
+      },
+      render: h => h(Child)
+    }).$mount()
+
+    // Ensure not to trigger infinite loop
+    waitForUpdate(() => {
+      expect(store.errors.length).toBe(1)
+      expect(store.errors[0]).toEqual(new Error('render error'))
+    }).then(done)
+  })
 })

From 1d3316615bfdab021474c248f38ef255e5cc88d5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 18 Feb 2019 16:34:46 -0500
Subject: [PATCH 818/911] chore: bump webpack (fix PR build cache)

---
 package.json |   2 +-
 yarn.lock    | 343 ++++++++++++++++++++++++++-------------------------
 2 files changed, 174 insertions(+), 171 deletions(-)

diff --git a/package.json b/package.json
index db6c4af5f21..0fefd7b9249 100644
--- a/package.json
+++ b/package.json
@@ -137,7 +137,7 @@
     "shelljs": "^0.8.1",
     "terser": "^3.10.2",
     "typescript": "^3.1.3",
-    "webpack": "^4.22.0",
+    "webpack": "^4.29.5",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
     "yorkie": "^2.0.0"
diff --git a/yarn.lock b/yarn.lock
index 2a370ebc6c5..8154421813e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -703,158 +703,161 @@
     "@types/uglify-js" "*"
     source-map "^0.6.0"
 
-"@webassemblyjs/ast@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.7.11.tgz#b988582cafbb2b095e8b556526f30c90d057cace"
-  integrity sha512-ZEzy4vjvTzScC+SH8RBssQUawpaInUdMTYwYYLh54/s8TuT0gBLuyUnppKsVyZEi876VmmStKsUs28UxPgdvrA==
-  dependencies:
-    "@webassemblyjs/helper-module-context" "1.7.11"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
-    "@webassemblyjs/wast-parser" "1.7.11"
-
-"@webassemblyjs/floating-point-hex-parser@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.7.11.tgz#a69f0af6502eb9a3c045555b1a6129d3d3f2e313"
-  integrity sha512-zY8dSNyYcgzNRNT666/zOoAyImshm3ycKdoLsyDw/Bwo6+/uktb7p4xyApuef1dwEBo/U/SYQzbGBvV+nru2Xg==
-
-"@webassemblyjs/helper-api-error@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.7.11.tgz#c7b6bb8105f84039511a2b39ce494f193818a32a"
-  integrity sha512-7r1qXLmiglC+wPNkGuXCvkmalyEstKVwcueZRP2GNC2PAvxbLYwLLPr14rcdJaE4UtHxQKfFkuDFuv91ipqvXg==
-
-"@webassemblyjs/helper-buffer@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.7.11.tgz#3122d48dcc6c9456ed982debe16c8f37101df39b"
-  integrity sha512-MynuervdylPPh3ix+mKZloTcL06P8tenNH3sx6s0qE8SLR6DdwnfgA7Hc9NSYeob2jrW5Vql6GVlsQzKQCa13w==
-
-"@webassemblyjs/helper-code-frame@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.7.11.tgz#cf8f106e746662a0da29bdef635fcd3d1248364b"
-  integrity sha512-T8ESC9KMXFTXA5urJcyor5cn6qWeZ4/zLPyWeEXZ03hj/x9weSokGNkVCdnhSabKGYWxElSdgJ+sFa9G/RdHNw==
-  dependencies:
-    "@webassemblyjs/wast-printer" "1.7.11"
-
-"@webassemblyjs/helper-fsm@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.7.11.tgz#df38882a624080d03f7503f93e3f17ac5ac01181"
-  integrity sha512-nsAQWNP1+8Z6tkzdYlXT0kxfa2Z1tRTARd8wYnc/e3Zv3VydVVnaeePgqUzFrpkGUyhUUxOl5ML7f1NuT+gC0A==
-
-"@webassemblyjs/helper-module-context@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.7.11.tgz#d874d722e51e62ac202476935d649c802fa0e209"
-  integrity sha512-JxfD5DX8Ygq4PvXDucq0M+sbUFA7BJAv/GGl9ITovqE+idGX+J3QSzJYz+LwQmL7fC3Rs+utvWoJxDb6pmC0qg==
-
-"@webassemblyjs/helper-wasm-bytecode@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.7.11.tgz#dd9a1e817f1c2eb105b4cf1013093cb9f3c9cb06"
-  integrity sha512-cMXeVS9rhoXsI9LLL4tJxBgVD/KMOKXuFqYb5oCJ/opScWpkCMEz9EJtkonaNcnLv2R3K5jIeS4TRj/drde1JQ==
-
-"@webassemblyjs/helper-wasm-section@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.7.11.tgz#9c9ac41ecf9fbcfffc96f6d2675e2de33811e68a"
-  integrity sha512-8ZRY5iZbZdtNFE5UFunB8mmBEAbSI3guwbrsCl4fWdfRiAcvqQpeqd5KHhSWLL5wuxo53zcaGZDBU64qgn4I4Q==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/helper-buffer" "1.7.11"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
-    "@webassemblyjs/wasm-gen" "1.7.11"
-
-"@webassemblyjs/ieee754@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.7.11.tgz#c95839eb63757a31880aaec7b6512d4191ac640b"
-  integrity sha512-Mmqx/cS68K1tSrvRLtaV/Lp3NZWzXtOHUW2IvDvl2sihAwJh4ACE0eL6A8FvMyDG9abes3saB6dMimLOs+HMoQ==
+"@webassemblyjs/ast@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.8.3.tgz#63a741bd715a6b6783f2ea5c6ab707516aa215eb"
+  integrity sha512-xy3m06+Iu4D32+6soz6zLnwznigXJRuFNTovBX2M4GqVqLb0dnyWLbPnpcXvUSdEN+9DVyDeaq2jyH1eIL2LZQ==
+  dependencies:
+    "@webassemblyjs/helper-module-context" "1.8.3"
+    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
+    "@webassemblyjs/wast-parser" "1.8.3"
+
+"@webassemblyjs/floating-point-hex-parser@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.8.3.tgz#f198a2d203b3c50846a064f5addd6a133ef9bc0e"
+  integrity sha512-vq1TISG4sts4f0lDwMUM0f3kpe0on+G3YyV5P0IySHFeaLKRYZ++n2fCFfG4TcCMYkqFeTUYFxm75L3ddlk2xA==
+
+"@webassemblyjs/helper-api-error@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.8.3.tgz#3b708f6926accd64dcbaa7ba5b63db5660ff4f66"
+  integrity sha512-BmWEynI4FnZbjk8CaYZXwcv9a6gIiu+rllRRouQUo73hglanXD3AGFJE7Q4JZCoVE0p5/jeX6kf5eKa3D4JxwQ==
+
+"@webassemblyjs/helper-buffer@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.8.3.tgz#f3150a23ffaba68621e1f094c8a14bebfd53dd48"
+  integrity sha512-iVIMhWnNHoFB94+/2l7LpswfCsXeMRnWfExKtqsZ/E2NxZyUx9nTeKK/MEMKTQNEpyfznIUX06OchBHQ+VKi/Q==
+
+"@webassemblyjs/helper-code-frame@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.8.3.tgz#f43ac605789b519d95784ef350fd2968aebdd3ef"
+  integrity sha512-K1UxoJML7GKr1QXR+BG7eXqQkvu+eEeTjlSl5wUFQ6W6vaOc5OwSxTcb3oE9x/3+w4NHhrIKD4JXXCZmLdL2cg==
+  dependencies:
+    "@webassemblyjs/wast-printer" "1.8.3"
+
+"@webassemblyjs/helper-fsm@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.8.3.tgz#46aaa03f41082a916850ebcb97e9fc198ef36a9c"
+  integrity sha512-387zipfrGyO77/qm7/SDUiZBjQ5KGk4qkrVIyuoubmRNIiqn3g+6ijY8BhnlGqsCCQX5bYKOnttJobT5xoyviA==
+
+"@webassemblyjs/helper-module-context@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.8.3.tgz#150da405d90c8ea81ae0b0e1965b7b64e585634f"
+  integrity sha512-lPLFdQfaRssfnGEJit5Sk785kbBPPPK4ZS6rR5W/8hlUO/5v3F+rN8XuUcMj/Ny9iZiyKhhuinWGTUuYL4VKeQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    mamacro "^0.0.3"
+
+"@webassemblyjs/helper-wasm-bytecode@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.8.3.tgz#12f55bbafbbc7ddf9d8059a072cb7b0c17987901"
+  integrity sha512-R1nJW7bjyJLjsJQR5t3K/9LJ0QWuZezl8fGa49DZq4IVaejgvkbNlKEQxLYTC579zgT4IIIVHb5JA59uBPHXyw==
+
+"@webassemblyjs/helper-wasm-section@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.8.3.tgz#9e79456d9719e116f4f8998ee62ab54ba69a6cf3"
+  integrity sha512-P6F7D61SJY73Yz+fs49Q3+OzlYAZP86OfSpaSY448KzUy65NdfzDmo2NPVte+Rw4562MxEAacvq/mnDuvRWOcg==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/helper-buffer" "1.8.3"
+    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
+    "@webassemblyjs/wasm-gen" "1.8.3"
+
+"@webassemblyjs/ieee754@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.8.3.tgz#0a89355b1f6c9d08d0605c2acbc2a6fe3141f5b4"
+  integrity sha512-UD4HuLU99hjIvWz1pD68b52qsepWQlYCxDYVFJQfHh3BHyeAyAlBJ+QzLR1nnS5J6hAzjki3I3AoJeobNNSZlg==
   dependencies:
     "@xtuc/ieee754" "^1.2.0"
 
-"@webassemblyjs/leb128@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.7.11.tgz#d7267a1ee9c4594fd3f7e37298818ec65687db63"
-  integrity sha512-vuGmgZjjp3zjcerQg+JA+tGOncOnJLWVkt8Aze5eWQLwTQGNgVLcyOTqgSCxWTR4J42ijHbBxnuRaL1Rv7XMdw==
-  dependencies:
-    "@xtuc/long" "4.2.1"
-
-"@webassemblyjs/utf8@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.7.11.tgz#06d7218ea9fdc94a6793aa92208160db3d26ee82"
-  integrity sha512-C6GFkc7aErQIAH+BMrIdVSmW+6HSe20wg57HEC1uqJP8E/xpMjXqQUxkQw07MhNDSDcGpxI9G5JSNOQCqJk4sA==
-
-"@webassemblyjs/wasm-edit@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.7.11.tgz#8c74ca474d4f951d01dbae9bd70814ee22a82005"
-  integrity sha512-FUd97guNGsCZQgeTPKdgxJhBXkUbMTY6hFPf2Y4OedXd48H97J+sOY2Ltaq6WGVpIH8o/TGOVNiVz/SbpEMJGg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/helper-buffer" "1.7.11"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
-    "@webassemblyjs/helper-wasm-section" "1.7.11"
-    "@webassemblyjs/wasm-gen" "1.7.11"
-    "@webassemblyjs/wasm-opt" "1.7.11"
-    "@webassemblyjs/wasm-parser" "1.7.11"
-    "@webassemblyjs/wast-printer" "1.7.11"
-
-"@webassemblyjs/wasm-gen@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.7.11.tgz#9bbba942f22375686a6fb759afcd7ac9c45da1a8"
-  integrity sha512-U/KDYp7fgAZX5KPfq4NOupK/BmhDc5Kjy2GIqstMhvvdJRcER/kUsMThpWeRP8BMn4LXaKhSTggIJPOeYHwISA==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
-    "@webassemblyjs/ieee754" "1.7.11"
-    "@webassemblyjs/leb128" "1.7.11"
-    "@webassemblyjs/utf8" "1.7.11"
-
-"@webassemblyjs/wasm-opt@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.7.11.tgz#b331e8e7cef8f8e2f007d42c3a36a0580a7d6ca7"
-  integrity sha512-XynkOwQyiRidh0GLua7SkeHvAPXQV/RxsUeERILmAInZegApOUAIJfRuPYe2F7RcjOC9tW3Cb9juPvAC/sCqvg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/helper-buffer" "1.7.11"
-    "@webassemblyjs/wasm-gen" "1.7.11"
-    "@webassemblyjs/wasm-parser" "1.7.11"
-
-"@webassemblyjs/wasm-parser@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.7.11.tgz#6e3d20fa6a3519f6b084ef9391ad58211efb0a1a"
-  integrity sha512-6lmXRTrrZjYD8Ng8xRyvyXQJYUQKYSXhJqXOBLw24rdiXsHAOlvw5PhesjdcaMadU/pyPQOJ5dHreMjBxwnQKg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/helper-api-error" "1.7.11"
-    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
-    "@webassemblyjs/ieee754" "1.7.11"
-    "@webassemblyjs/leb128" "1.7.11"
-    "@webassemblyjs/utf8" "1.7.11"
-
-"@webassemblyjs/wast-parser@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.7.11.tgz#25bd117562ca8c002720ff8116ef9072d9ca869c"
-  integrity sha512-lEyVCg2np15tS+dm7+JJTNhNWq9yTZvi3qEhAIIOaofcYlUp0UR5/tVqOwa/gXYr3gjwSZqw+/lS9dscyLelbQ==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/floating-point-hex-parser" "1.7.11"
-    "@webassemblyjs/helper-api-error" "1.7.11"
-    "@webassemblyjs/helper-code-frame" "1.7.11"
-    "@webassemblyjs/helper-fsm" "1.7.11"
-    "@xtuc/long" "4.2.1"
-
-"@webassemblyjs/wast-printer@1.7.11":
-  version "1.7.11"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.7.11.tgz#c4245b6de242cb50a2cc950174fdbf65c78d7813"
-  integrity sha512-m5vkAsuJ32QpkdkDOUPGSltrg8Cuk3KBx4YrmAGQwCZPRdUHXxG4phIOuuycLemHFr74sWL9Wthqss4fzdzSwg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/wast-parser" "1.7.11"
-    "@xtuc/long" "4.2.1"
+"@webassemblyjs/leb128@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.8.3.tgz#b7fd9d7c039e34e375c4473bd4dc89ce8228b920"
+  integrity sha512-XXd3s1BmkC1gpGABuCRLqCGOD6D2L+Ma2BpwpjrQEHeQATKWAQtxAyU9Z14/z8Ryx6IG+L4/NDkIGHrccEhRUg==
+  dependencies:
+    "@xtuc/long" "4.2.2"
+
+"@webassemblyjs/utf8@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.8.3.tgz#75712db52cfdda868731569ddfe11046f1f1e7a2"
+  integrity sha512-Wv/WH9Zo5h5ZMyfCNpUrjFsLZ3X1amdfEuwdb7MLdG3cPAjRS6yc6ElULlpjLiiBTuzvmLhr3ENsuGyJ3wyCgg==
+
+"@webassemblyjs/wasm-edit@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.8.3.tgz#23c3c6206b096f9f6aa49623a5310a102ef0fb87"
+  integrity sha512-nB19eUx3Yhi1Vvv3yev5r+bqQixZprMtaoCs1brg9Efyl8Hto3tGaUoZ0Yb4Umn/gQCyoEGFfUxPLp1/8+Jvnw==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/helper-buffer" "1.8.3"
+    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
+    "@webassemblyjs/helper-wasm-section" "1.8.3"
+    "@webassemblyjs/wasm-gen" "1.8.3"
+    "@webassemblyjs/wasm-opt" "1.8.3"
+    "@webassemblyjs/wasm-parser" "1.8.3"
+    "@webassemblyjs/wast-printer" "1.8.3"
+
+"@webassemblyjs/wasm-gen@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.8.3.tgz#1a433b8ab97e074e6ac2e25fcbc8cb6125400813"
+  integrity sha512-sDNmu2nLBJZ/huSzlJvd9IK8B1EjCsOl7VeMV9VJPmxKYgTJ47lbkSP+KAXMgZWGcArxmcrznqm7FrAPQ7vVGg==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
+    "@webassemblyjs/ieee754" "1.8.3"
+    "@webassemblyjs/leb128" "1.8.3"
+    "@webassemblyjs/utf8" "1.8.3"
+
+"@webassemblyjs/wasm-opt@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.8.3.tgz#54754bcf88f88e92b909416a91125301cc81419c"
+  integrity sha512-j8lmQVFR+FR4/645VNgV4R/Jz8i50eaPAj93GZyd3EIJondVshE/D9pivpSDIXyaZt+IkCodlzOoZUE4LnQbeA==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/helper-buffer" "1.8.3"
+    "@webassemblyjs/wasm-gen" "1.8.3"
+    "@webassemblyjs/wasm-parser" "1.8.3"
+
+"@webassemblyjs/wasm-parser@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.8.3.tgz#d12ed19d1b8e8667a7bee040d2245aaaf215340b"
+  integrity sha512-NBI3SNNtRoy4T/KBsRZCAWUzE9lI94RH2nneLwa1KKIrt/2zzcTavWg6oY05ArCbb/PZDk3OUi63CD1RYtN65w==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/helper-api-error" "1.8.3"
+    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
+    "@webassemblyjs/ieee754" "1.8.3"
+    "@webassemblyjs/leb128" "1.8.3"
+    "@webassemblyjs/utf8" "1.8.3"
+
+"@webassemblyjs/wast-parser@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.8.3.tgz#44aa123e145503e995045dc3e5e2770069da117b"
+  integrity sha512-gZPst4CNcmGtKC1eYQmgCx6gwQvxk4h/nPjfPBbRoD+Raw3Hs+BS3yhrfgyRKtlYP+BJ8LcY9iFODEQofl2qbg==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/floating-point-hex-parser" "1.8.3"
+    "@webassemblyjs/helper-api-error" "1.8.3"
+    "@webassemblyjs/helper-code-frame" "1.8.3"
+    "@webassemblyjs/helper-fsm" "1.8.3"
+    "@xtuc/long" "4.2.2"
+
+"@webassemblyjs/wast-printer@1.8.3":
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.8.3.tgz#b1177780b266b1305f2eeba87c4d6aa732352060"
+  integrity sha512-DTA6kpXuHK4PHu16yAD9QVuT1WZQRT7079oIFFmFSjqjLWGXS909I/7kiLTn931mcj7wGsaUNungjwNQ2lGQ3Q==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/wast-parser" "1.8.3"
+    "@xtuc/long" "4.2.2"
 
 "@xtuc/ieee754@^1.2.0":
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/@xtuc/ieee754/-/ieee754-1.2.0.tgz#eef014a3145ae477a1cbc00cd1e552336dceb790"
   integrity sha512-DX8nKgqcGwsc0eJSqYt5lwP4DH5FlHnmuWWBRy7X0NcaGR0ZtuyeESgMwTYVEtxmsNGY+qit4QYT/MIYTOTPeA==
 
-"@xtuc/long@4.2.1":
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.1.tgz#5c85d662f76fa1d34575766c5dcd6615abcd30d8"
-  integrity sha512-FZdkNBDqBRHKQ2MEbSC17xnPFOhZxeJ2YGSfr2BKf3sujG49Qe3bB+rGCwQfIaA7WHnGeGkSijX4FuBCdrzW/g==
+"@xtuc/long@4.2.2":
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.2.tgz#d291c6a4e97989b5c61d9acf396ae4fe133a718d"
+  integrity sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==
 
 JSONStream@^1.0.4:
   version "1.3.5"
@@ -882,19 +885,17 @@ accepts@~1.3.4:
     mime-types "~2.1.18"
     negotiator "0.6.1"
 
-acorn-dynamic-import@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
-  integrity sha512-zVWV8Z8lislJoOKKqdNMOB+s6+XV5WERty8MnKBeFgwA+19XJjJHs2RP5dzM57FftIs+jQnRToLiWazKr6sSWg==
-  dependencies:
-    acorn "^5.0.0"
+acorn-dynamic-import@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz#482210140582a36b83c3e342e1cfebcaa9240948"
+  integrity sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw==
 
 acorn-jsx@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.0.1.tgz#32a064fd925429216a09b141102bfdd185fae40e"
   integrity sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==
 
-acorn@^5.0.0, acorn@^5.2.1, acorn@^5.6.2:
+acorn@^5.2.1:
   version "5.7.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
   integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
@@ -904,6 +905,11 @@ acorn@^6.0.2, acorn@^6.0.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.0.5.tgz#81730c0815f3f3b34d8efa95cb7430965f4d887a"
   integrity sha512-i33Zgp3XWtmZBMNvCr4azvOFeWVw1Rk6p3hfi3LUDvIFraOMywb1kAtrbi+med14m4Xfpqm3zRZMT+c0FNE7kg==
 
+acorn@^6.0.5:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.1.0.tgz#b0a3be31752c97a0f7013c5f4903b71a05db6818"
+  integrity sha512-MW/FjM+IvU9CgBzjO3UIPCE2pyEwUsoFl+VGdczOPEdxfGFjuKny/gN54mOuX7Qxmb9Rg9MCn2oKiSUeW+pjrw==
+
 adm-zip@~0.4.3:
   version "0.4.13"
   resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.13.tgz#597e2f8cc3672151e1307d3e95cddbc75672314a"
@@ -5315,6 +5321,11 @@ make-dir@^1.0.0:
   dependencies:
     pify "^3.0.0"
 
+mamacro@^0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/mamacro/-/mamacro-0.0.3.tgz#ad2c9576197c9f1abf308d0787865bd975a3f3e4"
+  integrity sha512-qMEwh+UujcQ+kbz3T6V+wAmO2U8veoq2w+3wY8MquqwVA3jChfwY+Tk52GZKDfACEPjuZ7r2oJLejwpt8jtwTA==
+
 map-cache@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
@@ -7082,14 +7093,6 @@ sax@>=0.6.0, sax@^1.2.4:
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
-schema-utils@^0.4.4:
-  version "0.4.7"
-  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.7.tgz#ba74f597d2be2ea880131746ee17d0a093c68187"
-  integrity sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==
-  dependencies:
-    ajv "^6.1.0"
-    ajv-keywords "^3.1.0"
-
 schema-utils@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-1.0.0.tgz#0b79a93204d7b600d4b2850d1f66c2a34951c770"
@@ -8164,17 +8167,17 @@ webpack-sources@^1.1.0, webpack-sources@^1.3.0:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^4.22.0:
-  version "4.28.3"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.28.3.tgz#8acef6e77fad8a01bfd0c2b25aa3636d46511874"
-  integrity sha512-vLZN9k5I7Nr/XB1IDG9GbZB4yQd1sPuvufMFgJkx0b31fi2LD97KQIjwjxE7xytdruAYfu5S0FLBLjdxmwGJCg==
-  dependencies:
-    "@webassemblyjs/ast" "1.7.11"
-    "@webassemblyjs/helper-module-context" "1.7.11"
-    "@webassemblyjs/wasm-edit" "1.7.11"
-    "@webassemblyjs/wasm-parser" "1.7.11"
-    acorn "^5.6.2"
-    acorn-dynamic-import "^3.0.0"
+webpack@^4.29.5:
+  version "4.29.5"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.29.5.tgz#52b60a7b0838427c3a894cd801a11dc0836bc79f"
+  integrity sha512-DuWlYUT982c7XVHodrLO9quFbNpVq5FNxLrMUfYUTlgKW0+yPimynYf1kttSQpEneAL1FH3P3OLNgkyImx8qIQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.8.3"
+    "@webassemblyjs/helper-module-context" "1.8.3"
+    "@webassemblyjs/wasm-edit" "1.8.3"
+    "@webassemblyjs/wasm-parser" "1.8.3"
+    acorn "^6.0.5"
+    acorn-dynamic-import "^4.0.0"
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
     chrome-trace-event "^1.0.0"
@@ -8188,7 +8191,7 @@ webpack@^4.22.0:
     mkdirp "~0.5.0"
     neo-async "^2.5.0"
     node-libs-browser "^2.0.0"
-    schema-utils "^0.4.4"
+    schema-utils "^1.0.0"
     tapable "^1.1.0"
     terser-webpack-plugin "^1.1.0"
     watchpack "^1.5.0"

From bb0aab664c52006ff79d0802631cf59e65fbbe0d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 18 Feb 2019 17:16:22 -0500
Subject: [PATCH 819/911] ci: pin webpack version

---
 package.json |   2 +-
 yarn.lock    | 343 +++++++++++++++++++++++++--------------------------
 2 files changed, 171 insertions(+), 174 deletions(-)

diff --git a/package.json b/package.json
index 0fefd7b9249..3f0173cb80a 100644
--- a/package.json
+++ b/package.json
@@ -137,7 +137,7 @@
     "shelljs": "^0.8.1",
     "terser": "^3.10.2",
     "typescript": "^3.1.3",
-    "webpack": "^4.29.5",
+    "webpack": "~4.28.4",
     "weex-js-runtime": "^0.23.6",
     "weex-styler": "^0.3.0",
     "yorkie": "^2.0.0"
diff --git a/yarn.lock b/yarn.lock
index 8154421813e..5282082271d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -703,161 +703,158 @@
     "@types/uglify-js" "*"
     source-map "^0.6.0"
 
-"@webassemblyjs/ast@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.8.3.tgz#63a741bd715a6b6783f2ea5c6ab707516aa215eb"
-  integrity sha512-xy3m06+Iu4D32+6soz6zLnwznigXJRuFNTovBX2M4GqVqLb0dnyWLbPnpcXvUSdEN+9DVyDeaq2jyH1eIL2LZQ==
-  dependencies:
-    "@webassemblyjs/helper-module-context" "1.8.3"
-    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
-    "@webassemblyjs/wast-parser" "1.8.3"
-
-"@webassemblyjs/floating-point-hex-parser@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.8.3.tgz#f198a2d203b3c50846a064f5addd6a133ef9bc0e"
-  integrity sha512-vq1TISG4sts4f0lDwMUM0f3kpe0on+G3YyV5P0IySHFeaLKRYZ++n2fCFfG4TcCMYkqFeTUYFxm75L3ddlk2xA==
-
-"@webassemblyjs/helper-api-error@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.8.3.tgz#3b708f6926accd64dcbaa7ba5b63db5660ff4f66"
-  integrity sha512-BmWEynI4FnZbjk8CaYZXwcv9a6gIiu+rllRRouQUo73hglanXD3AGFJE7Q4JZCoVE0p5/jeX6kf5eKa3D4JxwQ==
-
-"@webassemblyjs/helper-buffer@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.8.3.tgz#f3150a23ffaba68621e1f094c8a14bebfd53dd48"
-  integrity sha512-iVIMhWnNHoFB94+/2l7LpswfCsXeMRnWfExKtqsZ/E2NxZyUx9nTeKK/MEMKTQNEpyfznIUX06OchBHQ+VKi/Q==
-
-"@webassemblyjs/helper-code-frame@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.8.3.tgz#f43ac605789b519d95784ef350fd2968aebdd3ef"
-  integrity sha512-K1UxoJML7GKr1QXR+BG7eXqQkvu+eEeTjlSl5wUFQ6W6vaOc5OwSxTcb3oE9x/3+w4NHhrIKD4JXXCZmLdL2cg==
-  dependencies:
-    "@webassemblyjs/wast-printer" "1.8.3"
-
-"@webassemblyjs/helper-fsm@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.8.3.tgz#46aaa03f41082a916850ebcb97e9fc198ef36a9c"
-  integrity sha512-387zipfrGyO77/qm7/SDUiZBjQ5KGk4qkrVIyuoubmRNIiqn3g+6ijY8BhnlGqsCCQX5bYKOnttJobT5xoyviA==
-
-"@webassemblyjs/helper-module-context@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.8.3.tgz#150da405d90c8ea81ae0b0e1965b7b64e585634f"
-  integrity sha512-lPLFdQfaRssfnGEJit5Sk785kbBPPPK4ZS6rR5W/8hlUO/5v3F+rN8XuUcMj/Ny9iZiyKhhuinWGTUuYL4VKeQ==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    mamacro "^0.0.3"
-
-"@webassemblyjs/helper-wasm-bytecode@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.8.3.tgz#12f55bbafbbc7ddf9d8059a072cb7b0c17987901"
-  integrity sha512-R1nJW7bjyJLjsJQR5t3K/9LJ0QWuZezl8fGa49DZq4IVaejgvkbNlKEQxLYTC579zgT4IIIVHb5JA59uBPHXyw==
-
-"@webassemblyjs/helper-wasm-section@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.8.3.tgz#9e79456d9719e116f4f8998ee62ab54ba69a6cf3"
-  integrity sha512-P6F7D61SJY73Yz+fs49Q3+OzlYAZP86OfSpaSY448KzUy65NdfzDmo2NPVte+Rw4562MxEAacvq/mnDuvRWOcg==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/helper-buffer" "1.8.3"
-    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
-    "@webassemblyjs/wasm-gen" "1.8.3"
-
-"@webassemblyjs/ieee754@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.8.3.tgz#0a89355b1f6c9d08d0605c2acbc2a6fe3141f5b4"
-  integrity sha512-UD4HuLU99hjIvWz1pD68b52qsepWQlYCxDYVFJQfHh3BHyeAyAlBJ+QzLR1nnS5J6hAzjki3I3AoJeobNNSZlg==
+"@webassemblyjs/ast@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.7.11.tgz#b988582cafbb2b095e8b556526f30c90d057cace"
+  integrity sha512-ZEzy4vjvTzScC+SH8RBssQUawpaInUdMTYwYYLh54/s8TuT0gBLuyUnppKsVyZEi876VmmStKsUs28UxPgdvrA==
+  dependencies:
+    "@webassemblyjs/helper-module-context" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/wast-parser" "1.7.11"
+
+"@webassemblyjs/floating-point-hex-parser@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.7.11.tgz#a69f0af6502eb9a3c045555b1a6129d3d3f2e313"
+  integrity sha512-zY8dSNyYcgzNRNT666/zOoAyImshm3ycKdoLsyDw/Bwo6+/uktb7p4xyApuef1dwEBo/U/SYQzbGBvV+nru2Xg==
+
+"@webassemblyjs/helper-api-error@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.7.11.tgz#c7b6bb8105f84039511a2b39ce494f193818a32a"
+  integrity sha512-7r1qXLmiglC+wPNkGuXCvkmalyEstKVwcueZRP2GNC2PAvxbLYwLLPr14rcdJaE4UtHxQKfFkuDFuv91ipqvXg==
+
+"@webassemblyjs/helper-buffer@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.7.11.tgz#3122d48dcc6c9456ed982debe16c8f37101df39b"
+  integrity sha512-MynuervdylPPh3ix+mKZloTcL06P8tenNH3sx6s0qE8SLR6DdwnfgA7Hc9NSYeob2jrW5Vql6GVlsQzKQCa13w==
+
+"@webassemblyjs/helper-code-frame@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.7.11.tgz#cf8f106e746662a0da29bdef635fcd3d1248364b"
+  integrity sha512-T8ESC9KMXFTXA5urJcyor5cn6qWeZ4/zLPyWeEXZ03hj/x9weSokGNkVCdnhSabKGYWxElSdgJ+sFa9G/RdHNw==
+  dependencies:
+    "@webassemblyjs/wast-printer" "1.7.11"
+
+"@webassemblyjs/helper-fsm@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.7.11.tgz#df38882a624080d03f7503f93e3f17ac5ac01181"
+  integrity sha512-nsAQWNP1+8Z6tkzdYlXT0kxfa2Z1tRTARd8wYnc/e3Zv3VydVVnaeePgqUzFrpkGUyhUUxOl5ML7f1NuT+gC0A==
+
+"@webassemblyjs/helper-module-context@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.7.11.tgz#d874d722e51e62ac202476935d649c802fa0e209"
+  integrity sha512-JxfD5DX8Ygq4PvXDucq0M+sbUFA7BJAv/GGl9ITovqE+idGX+J3QSzJYz+LwQmL7fC3Rs+utvWoJxDb6pmC0qg==
+
+"@webassemblyjs/helper-wasm-bytecode@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.7.11.tgz#dd9a1e817f1c2eb105b4cf1013093cb9f3c9cb06"
+  integrity sha512-cMXeVS9rhoXsI9LLL4tJxBgVD/KMOKXuFqYb5oCJ/opScWpkCMEz9EJtkonaNcnLv2R3K5jIeS4TRj/drde1JQ==
+
+"@webassemblyjs/helper-wasm-section@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.7.11.tgz#9c9ac41ecf9fbcfffc96f6d2675e2de33811e68a"
+  integrity sha512-8ZRY5iZbZdtNFE5UFunB8mmBEAbSI3guwbrsCl4fWdfRiAcvqQpeqd5KHhSWLL5wuxo53zcaGZDBU64qgn4I4Q==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-buffer" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/wasm-gen" "1.7.11"
+
+"@webassemblyjs/ieee754@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.7.11.tgz#c95839eb63757a31880aaec7b6512d4191ac640b"
+  integrity sha512-Mmqx/cS68K1tSrvRLtaV/Lp3NZWzXtOHUW2IvDvl2sihAwJh4ACE0eL6A8FvMyDG9abes3saB6dMimLOs+HMoQ==
   dependencies:
     "@xtuc/ieee754" "^1.2.0"
 
-"@webassemblyjs/leb128@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.8.3.tgz#b7fd9d7c039e34e375c4473bd4dc89ce8228b920"
-  integrity sha512-XXd3s1BmkC1gpGABuCRLqCGOD6D2L+Ma2BpwpjrQEHeQATKWAQtxAyU9Z14/z8Ryx6IG+L4/NDkIGHrccEhRUg==
-  dependencies:
-    "@xtuc/long" "4.2.2"
-
-"@webassemblyjs/utf8@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.8.3.tgz#75712db52cfdda868731569ddfe11046f1f1e7a2"
-  integrity sha512-Wv/WH9Zo5h5ZMyfCNpUrjFsLZ3X1amdfEuwdb7MLdG3cPAjRS6yc6ElULlpjLiiBTuzvmLhr3ENsuGyJ3wyCgg==
-
-"@webassemblyjs/wasm-edit@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.8.3.tgz#23c3c6206b096f9f6aa49623a5310a102ef0fb87"
-  integrity sha512-nB19eUx3Yhi1Vvv3yev5r+bqQixZprMtaoCs1brg9Efyl8Hto3tGaUoZ0Yb4Umn/gQCyoEGFfUxPLp1/8+Jvnw==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/helper-buffer" "1.8.3"
-    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
-    "@webassemblyjs/helper-wasm-section" "1.8.3"
-    "@webassemblyjs/wasm-gen" "1.8.3"
-    "@webassemblyjs/wasm-opt" "1.8.3"
-    "@webassemblyjs/wasm-parser" "1.8.3"
-    "@webassemblyjs/wast-printer" "1.8.3"
-
-"@webassemblyjs/wasm-gen@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.8.3.tgz#1a433b8ab97e074e6ac2e25fcbc8cb6125400813"
-  integrity sha512-sDNmu2nLBJZ/huSzlJvd9IK8B1EjCsOl7VeMV9VJPmxKYgTJ47lbkSP+KAXMgZWGcArxmcrznqm7FrAPQ7vVGg==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
-    "@webassemblyjs/ieee754" "1.8.3"
-    "@webassemblyjs/leb128" "1.8.3"
-    "@webassemblyjs/utf8" "1.8.3"
-
-"@webassemblyjs/wasm-opt@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.8.3.tgz#54754bcf88f88e92b909416a91125301cc81419c"
-  integrity sha512-j8lmQVFR+FR4/645VNgV4R/Jz8i50eaPAj93GZyd3EIJondVshE/D9pivpSDIXyaZt+IkCodlzOoZUE4LnQbeA==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/helper-buffer" "1.8.3"
-    "@webassemblyjs/wasm-gen" "1.8.3"
-    "@webassemblyjs/wasm-parser" "1.8.3"
-
-"@webassemblyjs/wasm-parser@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.8.3.tgz#d12ed19d1b8e8667a7bee040d2245aaaf215340b"
-  integrity sha512-NBI3SNNtRoy4T/KBsRZCAWUzE9lI94RH2nneLwa1KKIrt/2zzcTavWg6oY05ArCbb/PZDk3OUi63CD1RYtN65w==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/helper-api-error" "1.8.3"
-    "@webassemblyjs/helper-wasm-bytecode" "1.8.3"
-    "@webassemblyjs/ieee754" "1.8.3"
-    "@webassemblyjs/leb128" "1.8.3"
-    "@webassemblyjs/utf8" "1.8.3"
-
-"@webassemblyjs/wast-parser@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.8.3.tgz#44aa123e145503e995045dc3e5e2770069da117b"
-  integrity sha512-gZPst4CNcmGtKC1eYQmgCx6gwQvxk4h/nPjfPBbRoD+Raw3Hs+BS3yhrfgyRKtlYP+BJ8LcY9iFODEQofl2qbg==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/floating-point-hex-parser" "1.8.3"
-    "@webassemblyjs/helper-api-error" "1.8.3"
-    "@webassemblyjs/helper-code-frame" "1.8.3"
-    "@webassemblyjs/helper-fsm" "1.8.3"
-    "@xtuc/long" "4.2.2"
-
-"@webassemblyjs/wast-printer@1.8.3":
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.8.3.tgz#b1177780b266b1305f2eeba87c4d6aa732352060"
-  integrity sha512-DTA6kpXuHK4PHu16yAD9QVuT1WZQRT7079oIFFmFSjqjLWGXS909I/7kiLTn931mcj7wGsaUNungjwNQ2lGQ3Q==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/wast-parser" "1.8.3"
-    "@xtuc/long" "4.2.2"
+"@webassemblyjs/leb128@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.7.11.tgz#d7267a1ee9c4594fd3f7e37298818ec65687db63"
+  integrity sha512-vuGmgZjjp3zjcerQg+JA+tGOncOnJLWVkt8Aze5eWQLwTQGNgVLcyOTqgSCxWTR4J42ijHbBxnuRaL1Rv7XMdw==
+  dependencies:
+    "@xtuc/long" "4.2.1"
+
+"@webassemblyjs/utf8@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.7.11.tgz#06d7218ea9fdc94a6793aa92208160db3d26ee82"
+  integrity sha512-C6GFkc7aErQIAH+BMrIdVSmW+6HSe20wg57HEC1uqJP8E/xpMjXqQUxkQw07MhNDSDcGpxI9G5JSNOQCqJk4sA==
+
+"@webassemblyjs/wasm-edit@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.7.11.tgz#8c74ca474d4f951d01dbae9bd70814ee22a82005"
+  integrity sha512-FUd97guNGsCZQgeTPKdgxJhBXkUbMTY6hFPf2Y4OedXd48H97J+sOY2Ltaq6WGVpIH8o/TGOVNiVz/SbpEMJGg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-buffer" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/helper-wasm-section" "1.7.11"
+    "@webassemblyjs/wasm-gen" "1.7.11"
+    "@webassemblyjs/wasm-opt" "1.7.11"
+    "@webassemblyjs/wasm-parser" "1.7.11"
+    "@webassemblyjs/wast-printer" "1.7.11"
+
+"@webassemblyjs/wasm-gen@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.7.11.tgz#9bbba942f22375686a6fb759afcd7ac9c45da1a8"
+  integrity sha512-U/KDYp7fgAZX5KPfq4NOupK/BmhDc5Kjy2GIqstMhvvdJRcER/kUsMThpWeRP8BMn4LXaKhSTggIJPOeYHwISA==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/ieee754" "1.7.11"
+    "@webassemblyjs/leb128" "1.7.11"
+    "@webassemblyjs/utf8" "1.7.11"
+
+"@webassemblyjs/wasm-opt@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.7.11.tgz#b331e8e7cef8f8e2f007d42c3a36a0580a7d6ca7"
+  integrity sha512-XynkOwQyiRidh0GLua7SkeHvAPXQV/RxsUeERILmAInZegApOUAIJfRuPYe2F7RcjOC9tW3Cb9juPvAC/sCqvg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-buffer" "1.7.11"
+    "@webassemblyjs/wasm-gen" "1.7.11"
+    "@webassemblyjs/wasm-parser" "1.7.11"
+
+"@webassemblyjs/wasm-parser@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.7.11.tgz#6e3d20fa6a3519f6b084ef9391ad58211efb0a1a"
+  integrity sha512-6lmXRTrrZjYD8Ng8xRyvyXQJYUQKYSXhJqXOBLw24rdiXsHAOlvw5PhesjdcaMadU/pyPQOJ5dHreMjBxwnQKg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-api-error" "1.7.11"
+    "@webassemblyjs/helper-wasm-bytecode" "1.7.11"
+    "@webassemblyjs/ieee754" "1.7.11"
+    "@webassemblyjs/leb128" "1.7.11"
+    "@webassemblyjs/utf8" "1.7.11"
+
+"@webassemblyjs/wast-parser@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.7.11.tgz#25bd117562ca8c002720ff8116ef9072d9ca869c"
+  integrity sha512-lEyVCg2np15tS+dm7+JJTNhNWq9yTZvi3qEhAIIOaofcYlUp0UR5/tVqOwa/gXYr3gjwSZqw+/lS9dscyLelbQ==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/floating-point-hex-parser" "1.7.11"
+    "@webassemblyjs/helper-api-error" "1.7.11"
+    "@webassemblyjs/helper-code-frame" "1.7.11"
+    "@webassemblyjs/helper-fsm" "1.7.11"
+    "@xtuc/long" "4.2.1"
+
+"@webassemblyjs/wast-printer@1.7.11":
+  version "1.7.11"
+  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.7.11.tgz#c4245b6de242cb50a2cc950174fdbf65c78d7813"
+  integrity sha512-m5vkAsuJ32QpkdkDOUPGSltrg8Cuk3KBx4YrmAGQwCZPRdUHXxG4phIOuuycLemHFr74sWL9Wthqss4fzdzSwg==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/wast-parser" "1.7.11"
+    "@xtuc/long" "4.2.1"
 
 "@xtuc/ieee754@^1.2.0":
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/@xtuc/ieee754/-/ieee754-1.2.0.tgz#eef014a3145ae477a1cbc00cd1e552336dceb790"
   integrity sha512-DX8nKgqcGwsc0eJSqYt5lwP4DH5FlHnmuWWBRy7X0NcaGR0ZtuyeESgMwTYVEtxmsNGY+qit4QYT/MIYTOTPeA==
 
-"@xtuc/long@4.2.2":
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.2.tgz#d291c6a4e97989b5c61d9acf396ae4fe133a718d"
-  integrity sha512-NuHqBY1PB/D8xU6s/thBgOAiAP7HOYDQ32+BFZILJ8ivkUkAHQnWfn6WhL79Owj1qmUnoN/YPhktdIoucipkAQ==
+"@xtuc/long@4.2.1":
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/@xtuc/long/-/long-4.2.1.tgz#5c85d662f76fa1d34575766c5dcd6615abcd30d8"
+  integrity sha512-FZdkNBDqBRHKQ2MEbSC17xnPFOhZxeJ2YGSfr2BKf3sujG49Qe3bB+rGCwQfIaA7WHnGeGkSijX4FuBCdrzW/g==
 
 JSONStream@^1.0.4:
   version "1.3.5"
@@ -885,17 +882,19 @@ accepts@~1.3.4:
     mime-types "~2.1.18"
     negotiator "0.6.1"
 
-acorn-dynamic-import@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz#482210140582a36b83c3e342e1cfebcaa9240948"
-  integrity sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw==
+acorn-dynamic-import@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
+  integrity sha512-zVWV8Z8lislJoOKKqdNMOB+s6+XV5WERty8MnKBeFgwA+19XJjJHs2RP5dzM57FftIs+jQnRToLiWazKr6sSWg==
+  dependencies:
+    acorn "^5.0.0"
 
 acorn-jsx@^5.0.0:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.0.1.tgz#32a064fd925429216a09b141102bfdd185fae40e"
   integrity sha512-HJ7CfNHrfJLlNTzIEUTj43LNWGkqpRLxm3YjAlcD0ACydk9XynzYsCBHxut+iqt+1aBXkx9UP/w/ZqMr13XIzg==
 
-acorn@^5.2.1:
+acorn@^5.0.0, acorn@^5.2.1, acorn@^5.6.2:
   version "5.7.3"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
   integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
@@ -905,11 +904,6 @@ acorn@^6.0.2, acorn@^6.0.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.0.5.tgz#81730c0815f3f3b34d8efa95cb7430965f4d887a"
   integrity sha512-i33Zgp3XWtmZBMNvCr4azvOFeWVw1Rk6p3hfi3LUDvIFraOMywb1kAtrbi+med14m4Xfpqm3zRZMT+c0FNE7kg==
 
-acorn@^6.0.5:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-6.1.0.tgz#b0a3be31752c97a0f7013c5f4903b71a05db6818"
-  integrity sha512-MW/FjM+IvU9CgBzjO3UIPCE2pyEwUsoFl+VGdczOPEdxfGFjuKny/gN54mOuX7Qxmb9Rg9MCn2oKiSUeW+pjrw==
-
 adm-zip@~0.4.3:
   version "0.4.13"
   resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.13.tgz#597e2f8cc3672151e1307d3e95cddbc75672314a"
@@ -5321,11 +5315,6 @@ make-dir@^1.0.0:
   dependencies:
     pify "^3.0.0"
 
-mamacro@^0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/mamacro/-/mamacro-0.0.3.tgz#ad2c9576197c9f1abf308d0787865bd975a3f3e4"
-  integrity sha512-qMEwh+UujcQ+kbz3T6V+wAmO2U8veoq2w+3wY8MquqwVA3jChfwY+Tk52GZKDfACEPjuZ7r2oJLejwpt8jtwTA==
-
 map-cache@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
@@ -7093,6 +7082,14 @@ sax@>=0.6.0, sax@^1.2.4:
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
+schema-utils@^0.4.4:
+  version "0.4.7"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.7.tgz#ba74f597d2be2ea880131746ee17d0a093c68187"
+  integrity sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==
+  dependencies:
+    ajv "^6.1.0"
+    ajv-keywords "^3.1.0"
+
 schema-utils@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-1.0.0.tgz#0b79a93204d7b600d4b2850d1f66c2a34951c770"
@@ -8167,17 +8164,17 @@ webpack-sources@^1.1.0, webpack-sources@^1.3.0:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^4.29.5:
-  version "4.29.5"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.29.5.tgz#52b60a7b0838427c3a894cd801a11dc0836bc79f"
-  integrity sha512-DuWlYUT982c7XVHodrLO9quFbNpVq5FNxLrMUfYUTlgKW0+yPimynYf1kttSQpEneAL1FH3P3OLNgkyImx8qIQ==
-  dependencies:
-    "@webassemblyjs/ast" "1.8.3"
-    "@webassemblyjs/helper-module-context" "1.8.3"
-    "@webassemblyjs/wasm-edit" "1.8.3"
-    "@webassemblyjs/wasm-parser" "1.8.3"
-    acorn "^6.0.5"
-    acorn-dynamic-import "^4.0.0"
+webpack@~4.28.4:
+  version "4.28.4"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.28.4.tgz#1ddae6c89887d7efb752adf0c3cd32b9b07eacd0"
+  integrity sha512-NxjD61WsK/a3JIdwWjtIpimmvE6UrRi3yG54/74Hk9rwNj5FPkA4DJCf1z4ByDWLkvZhTZE+P3C/eh6UD5lDcw==
+  dependencies:
+    "@webassemblyjs/ast" "1.7.11"
+    "@webassemblyjs/helper-module-context" "1.7.11"
+    "@webassemblyjs/wasm-edit" "1.7.11"
+    "@webassemblyjs/wasm-parser" "1.7.11"
+    acorn "^5.6.2"
+    acorn-dynamic-import "^3.0.0"
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
     chrome-trace-event "^1.0.0"
@@ -8191,7 +8188,7 @@ webpack@^4.29.5:
     mkdirp "~0.5.0"
     neo-async "^2.5.0"
     node-libs-browser "^2.0.0"
-    schema-utils "^1.0.0"
+    schema-utils "^0.4.4"
     tapable "^1.1.0"
     terser-webpack-plugin "^1.1.0"
     watchpack "^1.5.0"

From 8f004ea44e06d7764fa884212fa95c2033515928 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 18 Feb 2019 17:17:47 -0500
Subject: [PATCH 820/911] fix: scoped slots should update when inside v-for

fix #9506
---
 src/compiler/codegen/index.js                 | 12 ++++++---
 .../component/component-scoped-slot.spec.js   | 26 +++++++++++++++++++
 2 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 9a9a654d4cd..1c4679f2d21 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -375,12 +375,18 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   })
-  // OR when it is inside another scoped slot (the reactivity is disconnected)
-  // #9438
+  // OR when it is inside another scoped slot or v-for (the reactivity may be
+  // disconnected due to the intermediate scope variable)
+  // #9438, #9506
+  // TODO: this can be further optimized by properly analyzing in-scope bindings
+  // and skip force updating ones that do not actually use scope variables.
   if (!needsForceUpdate) {
     let parent = el.parent
     while (parent) {
-      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+      if (
+        (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+        parent.for
+      ) {
         needsForceUpdate = true
         break
       }
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 858f237e9bb..2aadba239b4 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1171,4 +1171,30 @@ describe('Component scoped slot', () => {
       expect(vm.$el.textContent).toBe('bar')
     }).then(done)
   })
+
+  it('should not skip updates for v-slot inside v-for', done => {
+    const test = {
+      template: `<div><slot></slot></div>`
+    }
+
+    const vm = new Vue({
+      template: `
+      <div>
+        <div v-for="i in numbers">
+          <test v-slot>{{ i }}</test>
+        </div>
+      </div>
+      `,
+      components: { test },
+      data: {
+        numbers: [1]
+      }
+    }).$mount()
+
+    expect(vm.$el.textContent).toBe(`1`)
+    vm.numbers = [2]
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toBe(`2`)
+    }).then(done)
+  })
 })

From 9d4c972cad7832042f1ed188fa8db6f41b3bff54 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Wed, 20 Feb 2019 11:19:15 -0500
Subject: [PATCH 821/911] chore: update sponsors [ci skip] (#9537)

---
 BACKERS.md | 9 +++++++--
 README.md  | 9 +++++++--
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 3bbe5cb2a3d..64af7108f16 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -30,6 +30,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://moduscreate.com/?utm_source=Vue&utm_medium=Partnership&utm_campaign=VueShip" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/modus.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
@@ -45,13 +50,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://vehikl.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vehikl.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.nativescript.org/vue?utm_source=vue-js-org&utm_medium=website&utm_campaign=nativescript-awareness" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nativescript.png">
diff --git a/README.md b/README.md
index 51f327e794b..e20f604c1ad 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://moduscreate.com/?utm_source=Vue&utm_medium=Partnership&utm_campaign=VueShip" target="_blank">
+          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/modus.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
@@ -55,13 +60,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://vehikl.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vehikl.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.nativescript.org/vue?utm_source=vue-js-org&utm_medium=website&utm_campaign=nativescript-awareness" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nativescript.png">

From b3bd3116351eb53cf98254652ee2a01f440b62d8 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Wed, 20 Feb 2019 11:37:17 -0500
Subject: [PATCH 822/911] chore: update sponsors [ci skip] (#9538)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 64af7108f16..1c0144c18bc 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -214,6 +214,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://passionatepeople.io/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index e20f604c1ad..0b5eeaab640 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://passionatepeople.io/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From d9b27a92bd5277ee23a4e68a8bd31ecc72f4c99b Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 20 Feb 2019 21:48:33 -0500
Subject: [PATCH 823/911] fix: ensure scoped slots update in conditional
 branches

close #9534
---
 src/compiler/codegen/index.js                 | 33 ++++++++++++++++---
 src/core/instance/lifecycle.js                |  7 ++--
 .../render-helpers/resolve-scoped-slots.js    |  8 +++--
 .../vdom/helpers/normalize-scoped-slots.js    |  8 +++--
 .../component/component-scoped-slot.spec.js   | 30 +++++++++++++++++
 5 files changed, 75 insertions(+), 11 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index 1c4679f2d21..a64c3421696 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -375,6 +375,13 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   })
+
+  // #9534: if a component with scoped slots is inside a conditional branch,
+  // it's possible for the same component to be reused but with different
+  // compiled slot content. To avoid that, we generate a unique key based on
+  // the generated code of all the slot contents.
+  let needsKey = !!el.if
+
   // OR when it is inside another scoped slot or v-for (the reactivity may be
   // disconnected due to the intermediate scope variable)
   // #9438, #9506
@@ -390,15 +397,31 @@ function genScopedSlots (
         needsForceUpdate = true
         break
       }
+      if (parent.if) {
+        needsKey = true
+      }
       parent = parent.parent
     }
   }
 
-  return `scopedSlots:_u([${
-    Object.keys(slots).map(key => {
-      return genScopedSlot(slots[key], state)
-    }).join(',')
-  }]${needsForceUpdate ? `,true` : ``})`
+  const generatedSlots = Object.keys(slots)
+    .map(key => genScopedSlot(slots[key], state))
+    .join(',')
+
+  return `scopedSlots:_u([${generatedSlots}]${
+    needsForceUpdate ? `,true` : ``
+  }${
+    !needsForceUpdate && needsKey ? `,false,${hash(generatedSlots)}` : ``
+  })`
+}
+
+function hash(str) {
+  let hash = 5381
+  let i = str.length
+  while(i) {
+    hash = (hash * 33) ^ str.charCodeAt(--i)
+  }
+  return hash >>> 0
 }
 
 function containsSlotChild (el: ASTNode): boolean {
diff --git a/src/core/instance/lifecycle.js b/src/core/instance/lifecycle.js
index 5754e3fa34a..b7265df0aaf 100644
--- a/src/core/instance/lifecycle.js
+++ b/src/core/instance/lifecycle.js
@@ -229,9 +229,12 @@ export function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  const newScopedSlots = parentVnode.data.scopedSlots
+  const oldScopedSlots = vm.$scopedSlots
   const hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   )
 
   // Any static slot children from the parent may have changed during parent's
diff --git a/src/core/instance/render-helpers/resolve-scoped-slots.js b/src/core/instance/render-helpers/resolve-scoped-slots.js
index 2e2abbf8186..6439324b741 100644
--- a/src/core/instance/render-helpers/resolve-scoped-slots.js
+++ b/src/core/instance/render-helpers/resolve-scoped-slots.js
@@ -2,14 +2,15 @@
 
 export function resolveScopedSlots (
   fns: ScopedSlotsData, // see flow/vnode
-  hasDynamicKeys?: boolean,
+  hasDynamicKeys: boolean,
+  contentHashKey: number,
   res?: Object
 ): { [key: string]: Function, $stable: boolean } {
   res = res || { $stable: !hasDynamicKeys }
   for (let i = 0; i < fns.length; i++) {
     const slot = fns[i]
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res)
+      resolveScopedSlots(slot, hasDynamicKeys, null, res)
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -18,5 +19,8 @@ export function resolveScopedSlots (
       res[slot.key] = slot.fn
     }
   }
+  if (contentHashKey) {
+    res.$key = contentHashKey
+  }
   return res
 }
diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index 49c4e2effad..b2e41bf566a 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -10,15 +10,18 @@ export function normalizeScopedSlots (
   prevSlots?: { [key: string]: Function } | void
 ): any {
   let res
+  const isStable = slots ? !!slots.$stable : true
+  const key = slots && slots.$key
   if (!slots) {
     res = {}
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -43,7 +46,8 @@ export function normalizeScopedSlots (
   if (slots && Object.isExtensible(slots)) {
     (slots: any)._normalized = res
   }
-  def(res, '$stable', slots ? !!slots.$stable : true)
+  def(res, '$stable', isStable)
+  def(res, '$key', key)
   return res
 }
 
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 2aadba239b4..e12932cdd74 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1197,4 +1197,34 @@ describe('Component scoped slot', () => {
       expect(vm.$el.textContent).toBe(`2`)
     }).then(done)
   })
+
+  // #9534
+  it('should detect conditional reuse with different slot content', done => {
+    const Foo = {
+      template: `<div><slot :n="1" /></div>`
+    }
+
+    const vm = new Vue({
+      components: { Foo },
+      data: {
+        ok: true
+      },
+      template: `
+        <div>
+          <div v-if="ok">
+            <foo v-slot="{ n }">{{ n }}</foo>
+          </div>
+          <div v-if="!ok">
+            <foo v-slot="{ n }">{{ n + 1 }}</foo>
+          </div>
+        </div>
+      `
+    }).$mount()
+
+    expect(vm.$el.textContent.trim()).toBe(`1`)
+    vm.ok = false
+    waitForUpdate(() => {
+      expect(vm.$el.textContent.trim()).toBe(`2`)
+    }).then(done)
+  })
 })

From 7ec4627902020cccd7b3f4fbc63e1b0d6b9798cd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Feb 2019 08:52:15 -0500
Subject: [PATCH 824/911] fix: ensure generated scoped slot code is compatible
 with 2.5

fix #9545
---
 src/compiler/codegen/index.js                         |  4 ++--
 .../instance/render-helpers/resolve-scoped-slots.js   | 11 ++++++-----
 test/unit/modules/compiler/codegen.spec.js            |  8 ++++----
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index a64c3421696..d433f756282 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -409,9 +409,9 @@ function genScopedSlots (
     .join(',')
 
   return `scopedSlots:_u([${generatedSlots}]${
-    needsForceUpdate ? `,true` : ``
+    needsForceUpdate ? `,null,true` : ``
   }${
-    !needsForceUpdate && needsKey ? `,false,${hash(generatedSlots)}` : ``
+    !needsForceUpdate && needsKey ? `,null,false,${hash(generatedSlots)}` : ``
   })`
 }
 
diff --git a/src/core/instance/render-helpers/resolve-scoped-slots.js b/src/core/instance/render-helpers/resolve-scoped-slots.js
index 6439324b741..f11ca0008cd 100644
--- a/src/core/instance/render-helpers/resolve-scoped-slots.js
+++ b/src/core/instance/render-helpers/resolve-scoped-slots.js
@@ -2,15 +2,16 @@
 
 export function resolveScopedSlots (
   fns: ScopedSlotsData, // see flow/vnode
-  hasDynamicKeys: boolean,
-  contentHashKey: number,
-  res?: Object
+  res?: Object,
+  // the following are added in 2.6
+  hasDynamicKeys?: boolean,
+  contentHashKey?: number
 ): { [key: string]: Function, $stable: boolean } {
   res = res || { $stable: !hasDynamicKeys }
   for (let i = 0; i < fns.length; i++) {
     const slot = fns[i]
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, null, res)
+      resolveScopedSlots(slot, res, hasDynamicKeys)
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -20,7 +21,7 @@ export function resolveScopedSlots (
     }
   }
   if (contentHashKey) {
-    res.$key = contentHashKey
+    (res: any).$key = contentHashKey
   }
   return res
 }
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index 98c202dd252..e56b25766f2 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -232,25 +232,25 @@ describe('codegen', () => {
   it('generate dynamic scoped slot', () => {
     assertCodegen(
       '<foo><template :slot="foo" slot-scope="bar">{{ bar }}</template></foo>',
-      `with(this){return _c('foo',{scopedSlots:_u([{key:foo,fn:function(bar){return [_v(_s(bar))]}}],true)})}`
+      `with(this){return _c('foo',{scopedSlots:_u([{key:foo,fn:function(bar){return [_v(_s(bar))]}}],null,true)})}`
     )
   })
 
   it('generate scoped slot with multiline v-if', () => {
     assertCodegen(
       '<foo><template v-if="\nshow\n" slot-scope="bar">{{ bar }}</template></foo>',
-      `with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return (\nshow\n)?[_v(_s(bar))]:undefined}}],true)})}`
+      `with(this){return _c('foo',{scopedSlots:_u([{key:"default",fn:function(bar){return (\nshow\n)?[_v(_s(bar))]:undefined}}],null,true)})}`
     )
     assertCodegen(
       '<foo><div v-if="\nshow\n" slot="foo" slot-scope="bar">{{ bar }}</div></foo>',
-      `with(this){return _c(\'foo\',{scopedSlots:_u([{key:"foo",fn:function(bar){return (\nshow\n)?_c(\'div\',{},[_v(_s(bar))]):_e()}}],true)})}`
+      `with(this){return _c(\'foo\',{scopedSlots:_u([{key:"foo",fn:function(bar){return (\nshow\n)?_c(\'div\',{},[_v(_s(bar))]):_e()}}],null,true)})}`
     )
   })
 
   it('generate scoped slot with new slot syntax', () => {
     assertCodegen(
       '<foo><template v-if="show" #default="bar">{{ bar }}</template></foo>',
-      `with(this){return _c('foo',{scopedSlots:_u([(show)?{key:"default",fn:function(bar){return [_v(_s(bar))]}}:null],true)})}`
+      `with(this){return _c('foo',{scopedSlots:_u([(show)?{key:"default",fn:function(bar){return [_v(_s(bar))]}}:null],null,true)})}`
     )
   })
 

From cd3d202edb606ec941d5e4fff63a90a9223652d0 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Feb 2019 13:31:58 -0500
Subject: [PATCH 825/911] refactor: simplify conditions

---
 src/platforms/web/runtime/modules/dom-props.js | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index c208845f930..43dc2f1658a 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -38,14 +38,6 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       }
     }
 
-    // skip the update if old and new VDOM state is the same.
-    // the only exception is `value` where the DOM value may be temporarily
-    // out of sync with VDOM state due to focus, composition and modifiers.
-    // This also covers #4521 by skipping the unnecesarry `checked` update.
-    if (key !== 'value' && cur === oldProps[key]) {
-      continue
-    }
-
     if (key === 'value') {
       // store value as _value as well since
       // non-string values will be stringified
@@ -66,7 +58,13 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       while (svg.firstChild) {
         elm.appendChild(svg.firstChild)
       }
-    } else {
+    } else if (
+      // skip the update if old and new VDOM state is the same.
+      // `value` is handled separately because the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This  #4521 by skipping the unnecesarry `checked` update.
+      cur !== oldProps[key]
+    ) {
       elm[key] = cur
     }
   }

From 8a80a23ecba23f92f278d664388050ffcd121385 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Feb 2019 13:54:28 -0500
Subject: [PATCH 826/911] fix: avoid errors thrown during dom props update
 breaking the entire app

fix #9459
---
 .../web/runtime/modules/dom-props.js          |  8 +++++--
 .../modules/vdom/patch/edge-cases.spec.js     | 22 +++++++++++++++++++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index 43dc2f1658a..3e322462675 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -38,7 +38,7 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       }
     }
 
-    if (key === 'value') {
+    if (key === 'value' && elm.tagName !== 'PROGRESS') {
       // store value as _value as well since
       // non-string values will be stringified
       elm._value = cur
@@ -65,7 +65,11 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
       // This  #4521 by skipping the unnecesarry `checked` update.
       cur !== oldProps[key]
     ) {
-      elm[key] = cur
+      // some property updates can throw
+      // e.g. `value` on <progress> w/ non-finite value
+      try {
+        elm[key] = cur
+      } catch (e) {}
     }
   }
 }
diff --git a/test/unit/modules/vdom/patch/edge-cases.spec.js b/test/unit/modules/vdom/patch/edge-cases.spec.js
index a1c492d4b3e..a7f7ba38932 100644
--- a/test/unit/modules/vdom/patch/edge-cases.spec.js
+++ b/test/unit/modules/vdom/patch/edge-cases.spec.js
@@ -410,4 +410,26 @@ describe('vdom patch: edge cases', () => {
     expect(vm.$el.textContent).toBe('FooBar')
     expect(inlineHookSpy.calls.count()).toBe(2)
   })
+
+  // #9549
+  it('DOM props set throwing should not break app', done => {
+    const vm = new Vue({
+      data: {
+        n: Infinity
+      },
+      template: `
+        <div>
+          <progress :value="n"/>
+          {{ n }}
+        </div>
+      `
+    }).$mount()
+
+    expect(vm.$el.textContent).toMatch('Infinity')
+    vm.n = 1
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toMatch('1')
+      expect(vm.$el.textContent).not.toMatch('Infinity')
+    }).then(done)
+  })
 })

From 2f3020e9cc1ad5c878606b56bb73a30b1d9bb7d9 Mon Sep 17 00:00:00 2001
From: DSha <shasharoman@gmail.com>
Date: Fri, 22 Feb 2019 03:01:53 +0800
Subject: [PATCH 827/911] fix(#9511): avoid promise catch multiple times
 (#9526)

* fix(#9511): avoid promise catch multiple times

* fix(#9511): add a test case for util/error/invokeWithErrorHandling

* fix(#9511): update test case for util/error/invokeWithErrorHandling
---
 src/core/util/error.js                        |  4 +++-
 .../util/invoke-with-error-handling.spec.js   | 23 +++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 test/unit/modules/util/invoke-with-error-handling.spec.js

diff --git a/src/core/util/error.js b/src/core/util/error.js
index dffd8d84c26..8b8b9014ddb 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -44,7 +44,9 @@ export function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context)
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(e => handleError(e, vm, info + ` (Promise/async)`))
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(e => handleError(e, vm, info + ` (Promise/async)`))
     }
   } catch (e) {
     handleError(e, vm, info)
diff --git a/test/unit/modules/util/invoke-with-error-handling.spec.js b/test/unit/modules/util/invoke-with-error-handling.spec.js
new file mode 100644
index 00000000000..e1c95e02b35
--- /dev/null
+++ b/test/unit/modules/util/invoke-with-error-handling.spec.js
@@ -0,0 +1,23 @@
+import Vue from 'vue'
+import { invokeWithErrorHandling } from 'core/util/error'
+
+describe('invokeWithErrorHandling', () => {
+  if (typeof Promise !== 'undefined') {
+    it('should errorHandler call once when nested calls return rejected promise', done => {
+      let times = 0
+
+      Vue.config.errorHandler = function () {
+        times++
+      }
+
+      invokeWithErrorHandling(() => {
+        return invokeWithErrorHandling(() => {
+          return Promise.reject(new Error('fake error'))
+        })
+      }).then(() => {
+        expect(times).toBe(1)
+        done()
+      })
+    })
+  }
+})

From 173042bb8e07c5ce3a0857063445bf4dc1d1d846 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Feb 2019 14:14:35 -0500
Subject: [PATCH 828/911] refactor: improve test case

---
 .../modules/util/invoke-with-error-handling.spec.js    | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/test/unit/modules/util/invoke-with-error-handling.spec.js b/test/unit/modules/util/invoke-with-error-handling.spec.js
index e1c95e02b35..c958203ccec 100644
--- a/test/unit/modules/util/invoke-with-error-handling.spec.js
+++ b/test/unit/modules/util/invoke-with-error-handling.spec.js
@@ -4,18 +4,16 @@ import { invokeWithErrorHandling } from 'core/util/error'
 describe('invokeWithErrorHandling', () => {
   if (typeof Promise !== 'undefined') {
     it('should errorHandler call once when nested calls return rejected promise', done => {
-      let times = 0
-
-      Vue.config.errorHandler = function () {
-        times++
-      }
+      const originalHandler = Vue.config.errorHandler
+      const handler = Vue.config.errorHandler = jasmine.createSpy()
 
       invokeWithErrorHandling(() => {
         return invokeWithErrorHandling(() => {
           return Promise.reject(new Error('fake error'))
         })
       }).then(() => {
-        expect(times).toBe(1)
+        Vue.config.errorHandler = originalHandler
+        expect(handler.calls.count()).toBe(1)
         done()
       })
     })

From 7a8de91cd78f523fabe8452652513250871a01c6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Feb 2019 14:27:33 -0500
Subject: [PATCH 829/911] fix(compiler): handle negative length in codeframe
 repeat

---
 src/compiler/codeframe.js | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/compiler/codeframe.js b/src/compiler/codeframe.js
index 66c413064cf..513d318fcc1 100644
--- a/src/compiler/codeframe.js
+++ b/src/compiler/codeframe.js
@@ -38,11 +38,13 @@ export function generateCodeFrame (
 
 function repeat (str, n) {
   let result = ''
-  while (true) { // eslint-disable-line
-    if (n & 1) result += str
-    n >>>= 1
-    if (n <= 0) break
-    str += str
+  if (n > 0) {
+    while (true) { // eslint-disable-line
+      if (n & 1) result += str
+      n >>>= 1
+      if (n <= 0) break
+      str += str
+    }
   }
   return result
 }

From 875d6ac46c5ae8bca1490d493c75783e6e255635 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Feb 2019 17:06:16 -0500
Subject: [PATCH 830/911] build: build 2.6.7

---
 dist/vue.common.dev.js                      | 150 +++++++++++++-------
 dist/vue.common.prod.js                     |   4 +-
 dist/vue.esm.browser.js                     | 144 +++++++++++++------
 dist/vue.esm.browser.min.js                 |   4 +-
 dist/vue.esm.js                             | 150 +++++++++++++-------
 dist/vue.js                                 | 150 +++++++++++++-------
 dist/vue.min.js                             |   4 +-
 dist/vue.runtime.common.dev.js              |  99 ++++++++-----
 dist/vue.runtime.common.prod.js             |   4 +-
 dist/vue.runtime.esm.js                     |  99 ++++++++-----
 dist/vue.runtime.js                         |  99 ++++++++-----
 dist/vue.runtime.min.js                     |   4 +-
 packages/vue-server-renderer/basic.js       | 122 +++++++++++-----
 packages/vue-server-renderer/build.dev.js   | 122 +++++++++++-----
 packages/vue-server-renderer/build.prod.js  |   2 +-
 packages/vue-server-renderer/package.json   |   2 +-
 packages/vue-template-compiler/browser.js   |  51 +++++--
 packages/vue-template-compiler/build.js     |  51 +++++--
 packages/vue-template-compiler/package.json |   2 +-
 19 files changed, 850 insertions(+), 413 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 43ef0250f0d..a763aaed7d6 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1821,23 +1821,30 @@ function isBoolean () {
 /*  */
 
 function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget();
+  try {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info);
+  } finally {
+    popTarget();
   }
-  globalHandleError(err, vm, info);
 }
 
 function invokeWithErrorHandling (
@@ -1851,7 +1858,9 @@ function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2534,15 +2543,18 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
+  var isStable = slots ? !!slots.$stable : true;
+  var key = slots && slots.$key;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -2550,16 +2562,16 @@ function normalizeScopedSlots (
     return prevSlots
   } else {
     res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+    for (var key$1 in slots) {
+      if (slots[key$1] && key$1[0] !== '$') {
+        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
       }
     }
   }
   // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+  for (var key$2 in normalSlots) {
+    if (!(key$2 in res)) {
+      res[key$2] = proxyNormalSlot(normalSlots, key$2);
     }
   }
   // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -2567,7 +2579,8 @@ function normalizeScopedSlots (
   if (slots && Object.isExtensible(slots)) {
     (slots)._normalized = res;
   }
-  def(res, '$stable', slots ? !!slots.$stable : true);
+  def(res, '$stable', isStable);
+  def(res, '$key', key);
   return res
 }
 
@@ -2862,14 +2875,16 @@ function bindObjectListeners (data, value) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  res,
+  // the following are added in 2.6
   hasDynamicKeys,
-  res
+  contentHashKey
 ) {
   res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
+      resolveScopedSlots(slot, res, hasDynamicKeys);
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -2878,6 +2893,9 @@ function resolveScopedSlots (
       res[slot.key] = slot.fn;
     }
   }
+  if (contentHashKey) {
+    (res).$key = contentHashKey;
+  }
   return res
 }
 
@@ -4055,9 +4073,12 @@ function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  var newScopedSlots = parentVnode.data.scopedSlots;
+  var oldScopedSlots = vm.$scopedSlots;
   var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   );
 
   // Any static slot children from the parent may have changed during parent's
@@ -5379,7 +5400,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.6';
+Vue.version = '2.6.7';
 
 /*  */
 
@@ -7558,15 +7579,7 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // skip the update if old and new VDOM state is the same.
-    // the only exception is `value` where the DOM value may be temporarily
-    // out of sync with VDOM state due to focus, composition and modifiers.
-    // This also covers #4521 by skipping the unnecesarry `checked` update.
-    if (key !== 'value' && cur === oldProps[key]) {
-      continue
-    }
-
-    if (key === 'value') {
+    if (key === 'value' && elm.tagName !== 'PROGRESS') {
       // store value as _value as well since
       // non-string values will be stringified
       elm._value = cur;
@@ -7586,8 +7599,18 @@ function updateDOMProps (oldVnode, vnode) {
       while (svg.firstChild) {
         elm.appendChild(svg.firstChild);
       }
-    } else {
-      elm[key] = cur;
+    } else if (
+      // skip the update if old and new VDOM state is the same.
+      // `value` is handled separately because the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This  #4521 by skipping the unnecesarry `checked` update.
+      cur !== oldProps[key]
+    ) {
+      // some property updates can throw
+      // e.g. `value` on <progress> w/ non-finite value
+      try {
+        elm[key] = cur;
+      } catch (e) {}
     }
   }
 }
@@ -11167,22 +11190,49 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   });
-  // OR when it is inside another scoped slot (the reactivity is disconnected)
-  // #9438
+
+  // #9534: if a component with scoped slots is inside a conditional branch,
+  // it's possible for the same component to be reused but with different
+  // compiled slot content. To avoid that, we generate a unique key based on
+  // the generated code of all the slot contents.
+  var needsKey = !!el.if;
+
+  // OR when it is inside another scoped slot or v-for (the reactivity may be
+  // disconnected due to the intermediate scope variable)
+  // #9438, #9506
+  // TODO: this can be further optimized by properly analyzing in-scope bindings
+  // and skip force updating ones that do not actually use scope variables.
   if (!needsForceUpdate) {
     var parent = el.parent;
     while (parent) {
-      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+      if (
+        (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+        parent.for
+      ) {
         needsForceUpdate = true;
         break
       }
+      if (parent.if) {
+        needsKey = true;
+      }
       parent = parent.parent;
     }
   }
 
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+  var generatedSlots = Object.keys(slots)
+    .map(function (key) { return genScopedSlot(slots[key], state); })
+    .join(',');
+
+  return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+}
+
+function hash(str) {
+  var hash = 5381;
+  var i = str.length;
+  while(i) {
+    hash = (hash * 33) ^ str.charCodeAt(--i);
+  }
+  return hash >>> 0
 }
 
 function containsSlotChild (el) {
@@ -11517,11 +11567,13 @@ function generateCodeFrame (
 
 function repeat$1 (str, n) {
   var result = '';
-  while (true) { // eslint-disable-line
-    if (n & 1) { result += str; }
-    n >>>= 1;
-    if (n <= 0) { break }
-    str += str;
+  if (n > 0) {
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
   }
   return result
 }
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index a81dcf8d081..caf2f11f23a 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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t&&t.innerHTML}),as=bn.prototype.$mount;bn.prototype.$mount=function(e,t){if((e=e&&Gn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=os(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var i=ts(r,{outputSourceRange:!1,shouldDecodeNewlines:rs,shouldDecodeNewlinesForHref:is,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return as.call(this,e,t)},bn.compile=ts,module.exports=bn;
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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 2f74ac8b60b..74538f9f924 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1852,23 +1852,30 @@ function isBoolean (...args) {
 /*  */
 
 function handleError (err, vm, info) {
-  if (vm) {
-    let cur = vm;
-    while ((cur = cur.$parent)) {
-      const hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (let i = 0; i < hooks.length; i++) {
-          try {
-            const capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) return
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget();
+  try {
+    if (vm) {
+      let cur = vm;
+      while ((cur = cur.$parent)) {
+        const hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (let i = 0; i < hooks.length; i++) {
+            try {
+              const capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) return
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info);
+  } finally {
+    popTarget();
   }
-  globalHandleError(err, vm, info);
 }
 
 function invokeWithErrorHandling (
@@ -1882,7 +1889,9 @@ function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2562,15 +2571,18 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   let res;
+  const isStable = slots ? !!slots.$stable : true;
+  const key = slots && slots.$key;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -2595,7 +2607,8 @@ function normalizeScopedSlots (
   if (slots && Object.isExtensible(slots)) {
     (slots)._normalized = res;
   }
-  def(res, '$stable', slots ? !!slots.$stable : true);
+  def(res, '$stable', isStable);
+  def(res, '$key', key);
   return res
 }
 
@@ -2888,14 +2901,16 @@ function bindObjectListeners (data, value) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  res,
+  // the following are added in 2.6
   hasDynamicKeys,
-  res
+  contentHashKey
 ) {
   res = res || { $stable: !hasDynamicKeys };
   for (let i = 0; i < fns.length; i++) {
     const slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
+      resolveScopedSlots(slot, res, hasDynamicKeys);
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -2904,6 +2919,9 @@ function resolveScopedSlots (
       res[slot.key] = slot.fn;
     }
   }
+  if (contentHashKey) {
+    (res).$key = contentHashKey;
+  }
   return res
 }
 
@@ -4076,9 +4094,12 @@ function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  const newScopedSlots = parentVnode.data.scopedSlots;
+  const oldScopedSlots = vm.$scopedSlots;
   const hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   );
 
   // Any static slot children from the parent may have changed during parent's
@@ -5410,7 +5431,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.6';
+Vue.version = '2.6.7';
 
 /*  */
 
@@ -7581,15 +7602,7 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // skip the update if old and new VDOM state is the same.
-    // the only exception is `value` where the DOM value may be temporarily
-    // out of sync with VDOM state due to focus, composition and modifiers.
-    // This also covers #4521 by skipping the unnecesarry `checked` update.
-    if (key !== 'value' && cur === oldProps[key]) {
-      continue
-    }
-
-    if (key === 'value') {
+    if (key === 'value' && elm.tagName !== 'PROGRESS') {
       // store value as _value as well since
       // non-string values will be stringified
       elm._value = cur;
@@ -7609,8 +7622,18 @@ function updateDOMProps (oldVnode, vnode) {
       while (svg.firstChild) {
         elm.appendChild(svg.firstChild);
       }
-    } else {
-      elm[key] = cur;
+    } else if (
+      // skip the update if old and new VDOM state is the same.
+      // `value` is handled separately because the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This  #4521 by skipping the unnecesarry `checked` update.
+      cur !== oldProps[key]
+    ) {
+      // some property updates can throw
+      // e.g. `value` on <progress> w/ non-finite value
+      try {
+        elm[key] = cur;
+      } catch (e) {}
     }
   }
 }
@@ -11226,24 +11249,53 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   });
-  // OR when it is inside another scoped slot (the reactivity is disconnected)
-  // #9438
+
+  // #9534: if a component with scoped slots is inside a conditional branch,
+  // it's possible for the same component to be reused but with different
+  // compiled slot content. To avoid that, we generate a unique key based on
+  // the generated code of all the slot contents.
+  let needsKey = !!el.if;
+
+  // OR when it is inside another scoped slot or v-for (the reactivity may be
+  // disconnected due to the intermediate scope variable)
+  // #9438, #9506
+  // TODO: this can be further optimized by properly analyzing in-scope bindings
+  // and skip force updating ones that do not actually use scope variables.
   if (!needsForceUpdate) {
     let parent = el.parent;
     while (parent) {
-      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+      if (
+        (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+        parent.for
+      ) {
         needsForceUpdate = true;
         break
       }
+      if (parent.if) {
+        needsKey = true;
+      }
       parent = parent.parent;
     }
   }
 
-  return `scopedSlots:_u([${
-    Object.keys(slots).map(key => {
-      return genScopedSlot(slots[key], state)
-    }).join(',')
-  }]${needsForceUpdate ? `,true` : ``})`
+  const generatedSlots = Object.keys(slots)
+    .map(key => genScopedSlot(slots[key], state))
+    .join(',');
+
+  return `scopedSlots:_u([${generatedSlots}]${
+    needsForceUpdate ? `,null,true` : ``
+  }${
+    !needsForceUpdate && needsKey ? `,null,false,${hash(generatedSlots)}` : ``
+  })`
+}
+
+function hash(str) {
+  let hash = 5381;
+  let i = str.length;
+  while(i) {
+    hash = (hash * 33) ^ str.charCodeAt(--i);
+  }
+  return hash >>> 0
 }
 
 function containsSlotChild (el) {
@@ -11581,11 +11633,13 @@ function generateCodeFrame (
 
 function repeat (str, n) {
   let result = '';
-  while (true) { // eslint-disable-line
-    if (n & 1) result += str;
-    n >>>= 1;
-    if (n <= 0) break
-    str += str;
+  if (n > 0) {
+    while (true) { // eslint-disable-line
+      if (n & 1) result += str;
+      n >>>= 1;
+      if (n <= 0) break
+      str += str;
+    }
   }
   return result
 }
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index aefdb56003c..57c46ed56f0 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const 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n=Oi(t[e]);t[e]&&t[e].dynamic?r+=`${e},${n},`:o+=`"${e}":${n},`}return o=`{${o.slice(0,-1)}}`,r?n+`_d(${o},[${r.slice(0,-1)}])`:n+o}function Oi(t){if(!t)return"function(){}";if(Array.isArray(t))return`[${t.map(t=>Oi(t)).join(",")}]`;const e=bi.test(t.value),n=$i.test(t.value),o=bi.test(t.value.replace(_i,""));if(t.modifiers){let r="",s="";const i=[];for(const e in t.modifiers)if(Ai[e])s+=Ai[e],wi[e]&&i.push(e);else if("exact"===e){const e=t.modifiers;s+=xi(["ctrl","shift","alt","meta"].filter(t=>!e[t]).map(t=>`$event.${t}Key`).join("||"))}else i.push(e);return i.length&&(r+=function(t){return"if(!$event.type.indexOf('key')&&"+`${t.map(Si).join("&&")})return null;`}(i)),s&&(r+=s),`function($event){${r}${e?`return ${t.value}($event)`:n?`return (${t.value})($event)`:o?`return ${t.value}`:t.value}}`}return e||n?t.value:`function($event){${o?`return ${t.value}`:t.value}}`}function Si(t){const e=parseInt(t,10);if(e)return`$event.keyCode!==${e}`;const n=wi[t],o=Ci[t];return"_k($event.keyCode,"+`${JSON.stringify(t)},`+`${JSON.stringify(n)},`+"$event.key,"+`${JSON.stringify(o)}`+")"}var Ti={on:function(t,e){t.wrapListeners=(t=>`_g(${t},${e.value})`)},bind:function(t,e){t.wrapData=(n=>`_b(${n},'${t.tag}',${e.value},${e.modifiers&&e.modifiers.prop?"true":"false"}${e.modifiers&&e.modifiers.sync?",true":""})`)},cloak:S};class Ei{constructor(t){this.options=t,this.warn=t.warn||yo,this.transforms=go(t.modules,"transformCode"),this.dataGenFns=go(t.modules,"genData"),this.directives=k(k({},Ti),t.directives);const e=t.isReservedTag||T;this.maybeComponent=(t=>!!t.component||!e(t.tag)),this.onceId=0,this.staticRenderFns=[],this.pre=!1}}function Ni(t,e){const n=new Ei(e);return{render:`with(this){return ${t?ji(t,n):'_c("div")'}}`,staticRenderFns:n.staticRenderFns}}function ji(t,e){if(t.parent&&(t.pre=t.pre||t.parent.pre),t.staticRoot&&!t.staticProcessed)return Li(t,e);if(t.once&&!t.onceProcessed)return Mi(t,e);if(t.for&&!t.forProcessed)return Di(t,e);if(t.if&&!t.ifProcessed)return Ii(t,e);if("template"!==t.tag||t.slotTarget||e.pre){if("slot"===t.tag)return function(t,e){const n=t.slotName||'"default"',o=Hi(t,e);let r=`_t(${n}${o?`,${o}`:""}`;const s=t.attrs||t.dynamicAttrs?zi((t.attrs||[]).concat(t.dynamicAttrs||[]).map(t=>({name:_(t.name),value:t.value,dynamic:t.dynamic}))):null,i=t.attrsMap["v-bind"];!s&&!i||o||(r+=",null");s&&(r+=`,${s}`);i&&(r+=`${s?"":",null"},${i}`);return r+")"}(t,e);{let n;if(t.component)n=function(t,e,n){const o=e.inlineTemplate?null:Hi(e,n,!0);return`_c(${t},${Pi(e,n)}${o?`,${o}`:""})`}(t.component,t,e);else{let o;(!t.plain||t.pre&&e.maybeComponent(t))&&(o=Pi(t,e));const r=t.inlineTemplate?null:Hi(t,e,!0);n=`_c('${t.tag}'${o?`,${o}`:""}${r?`,${r}`:""})`}for(let o=0;o<e.transforms.length;o++)n=e.transforms[o](t,n);return n}}return Hi(t,e)||"void 0"}function Li(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${ji(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Mi(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ii(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${ji(t,e)},${e.onceId++},${n})`:ji(t,e)}return Li(t,e)}function Ii(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Mi(t,n):ji(t,n)}}(t.ifConditions.slice(),e,n,o)}function Di(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||ji)(t,e)}`+"})"}function Pi(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${zi(t.attrs)},`),t.props&&(n+=`domProps:${zi(t.props)},`),t.events&&(n+=`${ki(t.events,!1)},`),t.nativeEvents&&(n+=`${ki(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e,n){let o=Object.keys(e).some(t=>{const n=e[t];return n.slotTargetDynamic||n.if||n.for||Ri(n)}),r=!!t.if;if(!o){let e=t.parent;for(;e;){if(e.slotScope&&e.slotScope!==qs||e.for){o=!0;break}e.if&&(r=!0),e=e.parent}}const s=Object.keys(e).map(t=>Fi(e[t],n)).join(",");return`scopedSlots:_u([${s}]${o?",null,true":""}${!o&&r?`,null,false,${function(t){let e=5381,n=t.length;for(;n;)e=33*e^t.charCodeAt(--n);return e>>>0}(s)}`:""})`}(t,t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(n&&1===n.type){const t=Ni(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${zi(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Ri(t){return 1===t.type&&("slot"===t.tag||t.children.some(Ri))}function Fi(t,e){const n=t.attrsMap["slot-scope"];if(t.if&&!t.ifProcessed&&!n)return Ii(t,e,Fi,"null");if(t.for&&!t.forProcessed)return Di(t,e,Fi);const o=t.slotScope===qs?"":String(t.slotScope),r=`function(${o}){`+`return ${"template"===t.tag?t.if&&n?`(${t.if})?${Hi(t,e)||"undefined"}:undefined`:Hi(t,e)||"undefined":ji(t,e)}}`,s=o?"":",proxy:true";return`{key:${t.slotTarget||'"default"'},fn:${r}${s}}`}function Hi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||ji)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Bi(r)||r.ifConditions&&r.ifConditions.some(t=>Bi(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||Ui;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Bi(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function Ui(t,e){return 1===t.type?ji(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Vi(JSON.stringify(n.text))})`;var n,o}function zi(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Vi(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Vi(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Ki(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function Ji(t){const e=Object.create(null);return function(n,o,r){(o=k({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Ki(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Ki(t,c)),e[s]=a}}const qi=(Wi=function(t,e){const n=oi(t.trim(),e);!1!==e.optimize&&vi(n,e);const o=Ni(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=k(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=Wi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:Ji(e)}});var Wi;const{compile:Zi,compileToFunctions:Gi}=qi(hi);let Xi;function Yi(t){return(Xi=Xi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Xi.innerHTML.indexOf("&#10;")>0}const Qi=!!U&&Yi(!1),ta=!!U&&Yi(!0),ea=v(t=>{const e=Kn(t);return e&&e.innerHTML}),na=mn.prototype.$mount;mn.prototype.$mount=function(t,e){if((t=t&&Kn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=ea(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Gi(e,{outputSourceRange:!1,shouldDecodeNewlines:Qi,shouldDecodeNewlinesForHref:ta,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return na.call(this,t,e)},mn.compile=Gi;export default mn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index eceebfc47f2..2269a450e63 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1825,23 +1825,30 @@ function isBoolean () {
 /*  */
 
 function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget();
+  try {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info);
+  } finally {
+    popTarget();
   }
-  globalHandleError(err, vm, info);
 }
 
 function invokeWithErrorHandling (
@@ -1855,7 +1862,9 @@ function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2540,15 +2549,18 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
+  var isStable = slots ? !!slots.$stable : true;
+  var key = slots && slots.$key;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -2556,16 +2568,16 @@ function normalizeScopedSlots (
     return prevSlots
   } else {
     res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+    for (var key$1 in slots) {
+      if (slots[key$1] && key$1[0] !== '$') {
+        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
       }
     }
   }
   // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+  for (var key$2 in normalSlots) {
+    if (!(key$2 in res)) {
+      res[key$2] = proxyNormalSlot(normalSlots, key$2);
     }
   }
   // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -2573,7 +2585,8 @@ function normalizeScopedSlots (
   if (slots && Object.isExtensible(slots)) {
     (slots)._normalized = res;
   }
-  def(res, '$stable', slots ? !!slots.$stable : true);
+  def(res, '$stable', isStable);
+  def(res, '$key', key);
   return res
 }
 
@@ -2868,14 +2881,16 @@ function bindObjectListeners (data, value) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  res,
+  // the following are added in 2.6
   hasDynamicKeys,
-  res
+  contentHashKey
 ) {
   res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
+      resolveScopedSlots(slot, res, hasDynamicKeys);
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -2884,6 +2899,9 @@ function resolveScopedSlots (
       res[slot.key] = slot.fn;
     }
   }
+  if (contentHashKey) {
+    (res).$key = contentHashKey;
+  }
   return res
 }
 
@@ -4067,9 +4085,12 @@ function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  var newScopedSlots = parentVnode.data.scopedSlots;
+  var oldScopedSlots = vm.$scopedSlots;
   var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   );
 
   // Any static slot children from the parent may have changed during parent's
@@ -5399,7 +5420,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.6';
+Vue.version = '2.6.7';
 
 /*  */
 
@@ -7580,15 +7601,7 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // skip the update if old and new VDOM state is the same.
-    // the only exception is `value` where the DOM value may be temporarily
-    // out of sync with VDOM state due to focus, composition and modifiers.
-    // This also covers #4521 by skipping the unnecesarry `checked` update.
-    if (key !== 'value' && cur === oldProps[key]) {
-      continue
-    }
-
-    if (key === 'value') {
+    if (key === 'value' && elm.tagName !== 'PROGRESS') {
       // store value as _value as well since
       // non-string values will be stringified
       elm._value = cur;
@@ -7608,8 +7621,18 @@ function updateDOMProps (oldVnode, vnode) {
       while (svg.firstChild) {
         elm.appendChild(svg.firstChild);
       }
-    } else {
-      elm[key] = cur;
+    } else if (
+      // skip the update if old and new VDOM state is the same.
+      // `value` is handled separately because the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This  #4521 by skipping the unnecesarry `checked` update.
+      cur !== oldProps[key]
+    ) {
+      // some property updates can throw
+      // e.g. `value` on <progress> w/ non-finite value
+      try {
+        elm[key] = cur;
+      } catch (e) {}
     }
   }
 }
@@ -11201,22 +11224,49 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   });
-  // OR when it is inside another scoped slot (the reactivity is disconnected)
-  // #9438
+
+  // #9534: if a component with scoped slots is inside a conditional branch,
+  // it's possible for the same component to be reused but with different
+  // compiled slot content. To avoid that, we generate a unique key based on
+  // the generated code of all the slot contents.
+  var needsKey = !!el.if;
+
+  // OR when it is inside another scoped slot or v-for (the reactivity may be
+  // disconnected due to the intermediate scope variable)
+  // #9438, #9506
+  // TODO: this can be further optimized by properly analyzing in-scope bindings
+  // and skip force updating ones that do not actually use scope variables.
   if (!needsForceUpdate) {
     var parent = el.parent;
     while (parent) {
-      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+      if (
+        (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+        parent.for
+      ) {
         needsForceUpdate = true;
         break
       }
+      if (parent.if) {
+        needsKey = true;
+      }
       parent = parent.parent;
     }
   }
 
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+  var generatedSlots = Object.keys(slots)
+    .map(function (key) { return genScopedSlot(slots[key], state); })
+    .join(',');
+
+  return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+}
+
+function hash(str) {
+  var hash = 5381;
+  var i = str.length;
+  while(i) {
+    hash = (hash * 33) ^ str.charCodeAt(--i);
+  }
+  return hash >>> 0
 }
 
 function containsSlotChild (el) {
@@ -11551,11 +11601,13 @@ function generateCodeFrame (
 
 function repeat$1 (str, n) {
   var result = '';
-  while (true) { // eslint-disable-line
-    if (n & 1) { result += str; }
-    n >>>= 1;
-    if (n <= 0) { break }
-    str += str;
+  if (n > 0) {
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
   }
   return result
 }
diff --git a/dist/vue.js b/dist/vue.js
index 2685a1ee560..838cf9209c0 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1825,23 +1825,30 @@
   /*  */
 
   function handleError (err, vm, info) {
-    if (vm) {
-      var cur = vm;
-      while ((cur = cur.$parent)) {
-        var hooks = cur.$options.errorCaptured;
-        if (hooks) {
-          for (var i = 0; i < hooks.length; i++) {
-            try {
-              var capture = hooks[i].call(cur, err, vm, info) === false;
-              if (capture) { return }
-            } catch (e) {
-              globalHandleError(e, cur, 'errorCaptured hook');
+    // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+    // See: https://github.com/vuejs/vuex/issues/1505
+    pushTarget();
+    try {
+      if (vm) {
+        var cur = vm;
+        while ((cur = cur.$parent)) {
+          var hooks = cur.$options.errorCaptured;
+          if (hooks) {
+            for (var i = 0; i < hooks.length; i++) {
+              try {
+                var capture = hooks[i].call(cur, err, vm, info) === false;
+                if (capture) { return }
+              } catch (e) {
+                globalHandleError(e, cur, 'errorCaptured hook');
+              }
             }
           }
         }
       }
+      globalHandleError(err, vm, info);
+    } finally {
+      popTarget();
     }
-    globalHandleError(err, vm, info);
   }
 
   function invokeWithErrorHandling (
@@ -1855,7 +1862,9 @@
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
       if (res && !res._isVue && isPromise(res)) {
-        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+        // issue #9511
+        // reassign to res to avoid catch triggering multiple times when nested calls
+        res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       }
     } catch (e) {
       handleError(e, vm, info);
@@ -2538,15 +2547,18 @@
     prevSlots
   ) {
     var res;
+    var isStable = slots ? !!slots.$stable : true;
+    var key = slots && slots.$key;
     if (!slots) {
       res = {};
     } else if (slots._normalized) {
       // fast path 1: child component re-render only, parent did not change
       return slots._normalized
     } else if (
-      slots.$stable &&
+      isStable &&
       prevSlots &&
       prevSlots !== emptyObject &&
+      key === prevSlots.$key &&
       Object.keys(normalSlots).length === 0
     ) {
       // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -2554,16 +2566,16 @@
       return prevSlots
     } else {
       res = {};
-      for (var key in slots) {
-        if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+      for (var key$1 in slots) {
+        if (slots[key$1] && key$1[0] !== '$') {
+          res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
         }
       }
     }
     // expose normal slots on scopedSlots
-    for (var key$1 in normalSlots) {
-      if (!(key$1 in res)) {
-        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    for (var key$2 in normalSlots) {
+      if (!(key$2 in res)) {
+        res[key$2] = proxyNormalSlot(normalSlots, key$2);
       }
     }
     // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -2571,7 +2583,8 @@
     if (slots && Object.isExtensible(slots)) {
       (slots)._normalized = res;
     }
-    def(res, '$stable', slots ? !!slots.$stable : true);
+    def(res, '$stable', isStable);
+    def(res, '$key', key);
     return res
   }
 
@@ -2866,14 +2879,16 @@
 
   function resolveScopedSlots (
     fns, // see flow/vnode
+    res,
+    // the following are added in 2.6
     hasDynamicKeys,
-    res
+    contentHashKey
   ) {
     res = res || { $stable: !hasDynamicKeys };
     for (var i = 0; i < fns.length; i++) {
       var slot = fns[i];
       if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, hasDynamicKeys, res);
+        resolveScopedSlots(slot, res, hasDynamicKeys);
       } else if (slot) {
         // marker for reverse proxying v-slot without scope on this.$slots
         if (slot.proxy) {
@@ -2882,6 +2897,9 @@
         res[slot.key] = slot.fn;
       }
     }
+    if (contentHashKey) {
+      (res).$key = contentHashKey;
+    }
     return res
   }
 
@@ -4059,9 +4077,12 @@
     // check if there are dynamic scopedSlots (hand-written or compiled but with
     // dynamic slot names). Static scoped slots compiled from template has the
     // "$stable" marker.
+    var newScopedSlots = parentVnode.data.scopedSlots;
+    var oldScopedSlots = vm.$scopedSlots;
     var hasDynamicScopedSlot = !!(
-      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+      (newScopedSlots && !newScopedSlots.$stable) ||
+      (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+      (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
     );
 
     // Any static slot children from the parent may have changed during parent's
@@ -5383,7 +5404,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.6';
+  Vue.version = '2.6.7';
 
   /*  */
 
@@ -7562,15 +7583,7 @@
         }
       }
 
-      // skip the update if old and new VDOM state is the same.
-      // the only exception is `value` where the DOM value may be temporarily
-      // out of sync with VDOM state due to focus, composition and modifiers.
-      // This also covers #4521 by skipping the unnecesarry `checked` update.
-      if (key !== 'value' && cur === oldProps[key]) {
-        continue
-      }
-
-      if (key === 'value') {
+      if (key === 'value' && elm.tagName !== 'PROGRESS') {
         // store value as _value as well since
         // non-string values will be stringified
         elm._value = cur;
@@ -7590,8 +7603,18 @@
         while (svg.firstChild) {
           elm.appendChild(svg.firstChild);
         }
-      } else {
-        elm[key] = cur;
+      } else if (
+        // skip the update if old and new VDOM state is the same.
+        // `value` is handled separately because the DOM value may be temporarily
+        // out of sync with VDOM state due to focus, composition and modifiers.
+        // This  #4521 by skipping the unnecesarry `checked` update.
+        cur !== oldProps[key]
+      ) {
+        // some property updates can throw
+        // e.g. `value` on <progress> w/ non-finite value
+        try {
+          elm[key] = cur;
+        } catch (e) {}
       }
     }
   }
@@ -11171,22 +11194,49 @@
         containsSlotChild(slot) // is passing down slot from parent which may be dynamic
       )
     });
-    // OR when it is inside another scoped slot (the reactivity is disconnected)
-    // #9438
+
+    // #9534: if a component with scoped slots is inside a conditional branch,
+    // it's possible for the same component to be reused but with different
+    // compiled slot content. To avoid that, we generate a unique key based on
+    // the generated code of all the slot contents.
+    var needsKey = !!el.if;
+
+    // OR when it is inside another scoped slot or v-for (the reactivity may be
+    // disconnected due to the intermediate scope variable)
+    // #9438, #9506
+    // TODO: this can be further optimized by properly analyzing in-scope bindings
+    // and skip force updating ones that do not actually use scope variables.
     if (!needsForceUpdate) {
       var parent = el.parent;
       while (parent) {
-        if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        if (
+          (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+          parent.for
+        ) {
           needsForceUpdate = true;
           break
         }
+        if (parent.if) {
+          needsKey = true;
+        }
         parent = parent.parent;
       }
     }
 
-    return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-        return genScopedSlot(slots[key], state)
-      }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+    var generatedSlots = Object.keys(slots)
+      .map(function (key) { return genScopedSlot(slots[key], state); })
+      .join(',');
+
+    return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+  }
+
+  function hash(str) {
+    var hash = 5381;
+    var i = str.length;
+    while(i) {
+      hash = (hash * 33) ^ str.charCodeAt(--i);
+    }
+    return hash >>> 0
   }
 
   function containsSlotChild (el) {
@@ -11521,11 +11571,13 @@
 
   function repeat$1 (str, n) {
     var result = '';
-    while (true) { // eslint-disable-line
-      if (n & 1) { result += str; }
-      n >>>= 1;
-      if (n <= 0) { break }
-      str += str;
+    if (n > 0) {
+      while (true) { // eslint-disable-line
+        if (n & 1) { result += str; }
+        n >>>= 1;
+        if (n <= 0) { break }
+        str += str;
+      }
     }
     return result
   }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index 0cc6c8ba18a..dec89d0c23c 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var _=/-(\w)/g,b=g(function(e){return e.replace(_,function(e,t){return t?t.toUpperCase():""})}),$=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),w=/\B([A-Z])/g,x=g(function(e){return e.replace(w,"-$1").toLowerCase()});var C=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function A(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function O(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function 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\ No newline at end of file
diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index a1c9cd2efec..ef3eb980f46 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1812,23 +1812,30 @@ function isBoolean () {
 /*  */
 
 function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget();
+  try {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info);
+  } finally {
+    popTarget();
   }
-  globalHandleError(err, vm, info);
 }
 
 function invokeWithErrorHandling (
@@ -1842,7 +1849,9 @@ function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2525,15 +2534,18 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
+  var isStable = slots ? !!slots.$stable : true;
+  var key = slots && slots.$key;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -2541,16 +2553,16 @@ function normalizeScopedSlots (
     return prevSlots
   } else {
     res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+    for (var key$1 in slots) {
+      if (slots[key$1] && key$1[0] !== '$') {
+        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
       }
     }
   }
   // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+  for (var key$2 in normalSlots) {
+    if (!(key$2 in res)) {
+      res[key$2] = proxyNormalSlot(normalSlots, key$2);
     }
   }
   // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -2558,7 +2570,8 @@ function normalizeScopedSlots (
   if (slots && Object.isExtensible(slots)) {
     (slots)._normalized = res;
   }
-  def(res, '$stable', slots ? !!slots.$stable : true);
+  def(res, '$stable', isStable);
+  def(res, '$key', key);
   return res
 }
 
@@ -2853,14 +2866,16 @@ function bindObjectListeners (data, value) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  res,
+  // the following are added in 2.6
   hasDynamicKeys,
-  res
+  contentHashKey
 ) {
   res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
+      resolveScopedSlots(slot, res, hasDynamicKeys);
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -2869,6 +2884,9 @@ function resolveScopedSlots (
       res[slot.key] = slot.fn;
     }
   }
+  if (contentHashKey) {
+    (res).$key = contentHashKey;
+  }
   return res
 }
 
@@ -4046,9 +4064,12 @@ function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  var newScopedSlots = parentVnode.data.scopedSlots;
+  var oldScopedSlots = vm.$scopedSlots;
   var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   );
 
   // Any static slot children from the parent may have changed during parent's
@@ -5370,7 +5391,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.6';
+Vue.version = '2.6.7';
 
 /*  */
 
@@ -6910,15 +6931,7 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // skip the update if old and new VDOM state is the same.
-    // the only exception is `value` where the DOM value may be temporarily
-    // out of sync with VDOM state due to focus, composition and modifiers.
-    // This also covers #4521 by skipping the unnecesarry `checked` update.
-    if (key !== 'value' && cur === oldProps[key]) {
-      continue
-    }
-
-    if (key === 'value') {
+    if (key === 'value' && elm.tagName !== 'PROGRESS') {
       // store value as _value as well since
       // non-string values will be stringified
       elm._value = cur;
@@ -6938,8 +6951,18 @@ function updateDOMProps (oldVnode, vnode) {
       while (svg.firstChild) {
         elm.appendChild(svg.firstChild);
       }
-    } else {
-      elm[key] = cur;
+    } else if (
+      // skip the update if old and new VDOM state is the same.
+      // `value` is handled separately because the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This  #4521 by skipping the unnecesarry `checked` update.
+      cur !== oldProps[key]
+    ) {
+      // some property updates can throw
+      // e.g. `value` on <progress> w/ non-finite value
+      try {
+        elm[key] = cur;
+      } catch (e) {}
     }
   }
 }
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index c48ae06e482..aae1bb95832 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(t,e){return h.call(t,e)}function y(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}var g=/-(\w)/g,_=y(function(t){return t.replace(g,function(t,e){return e?e.toUpperCase():""})}),b=y(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),C=/\B([A-Z])/g,w=y(function(t){return t.replace(C,"-$1").toLowerCase()});var $=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function x(t,e){for(var n in e)t[n]=e[n];return t}function O(t){for(var e={},n=0;n<t.length;n++)t[n]&&x(e,t[n]);return e}function k(t,e,n){}var S=function(t,e,n){return!1},j=function(t){return t};function E(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var 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t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),module.exports=_n;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 1ed096dc194..0a9f0affbeb 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1816,23 +1816,30 @@ function isBoolean () {
 /*  */
 
 function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget();
+  try {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info);
+  } finally {
+    popTarget();
   }
-  globalHandleError(err, vm, info);
 }
 
 function invokeWithErrorHandling (
@@ -1846,7 +1853,9 @@ function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2531,15 +2540,18 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
+  var isStable = slots ? !!slots.$stable : true;
+  var key = slots && slots.$key;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -2547,16 +2559,16 @@ function normalizeScopedSlots (
     return prevSlots
   } else {
     res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+    for (var key$1 in slots) {
+      if (slots[key$1] && key$1[0] !== '$') {
+        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
       }
     }
   }
   // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+  for (var key$2 in normalSlots) {
+    if (!(key$2 in res)) {
+      res[key$2] = proxyNormalSlot(normalSlots, key$2);
     }
   }
   // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -2564,7 +2576,8 @@ function normalizeScopedSlots (
   if (slots && Object.isExtensible(slots)) {
     (slots)._normalized = res;
   }
-  def(res, '$stable', slots ? !!slots.$stable : true);
+  def(res, '$stable', isStable);
+  def(res, '$key', key);
   return res
 }
 
@@ -2859,14 +2872,16 @@ function bindObjectListeners (data, value) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  res,
+  // the following are added in 2.6
   hasDynamicKeys,
-  res
+  contentHashKey
 ) {
   res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
+      resolveScopedSlots(slot, res, hasDynamicKeys);
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -2875,6 +2890,9 @@ function resolveScopedSlots (
       res[slot.key] = slot.fn;
     }
   }
+  if (contentHashKey) {
+    (res).$key = contentHashKey;
+  }
   return res
 }
 
@@ -4058,9 +4076,12 @@ function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  var newScopedSlots = parentVnode.data.scopedSlots;
+  var oldScopedSlots = vm.$scopedSlots;
   var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   );
 
   // Any static slot children from the parent may have changed during parent's
@@ -5390,7 +5411,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.6';
+Vue.version = '2.6.7';
 
 /*  */
 
@@ -6932,15 +6953,7 @@ function updateDOMProps (oldVnode, vnode) {
       }
     }
 
-    // skip the update if old and new VDOM state is the same.
-    // the only exception is `value` where the DOM value may be temporarily
-    // out of sync with VDOM state due to focus, composition and modifiers.
-    // This also covers #4521 by skipping the unnecesarry `checked` update.
-    if (key !== 'value' && cur === oldProps[key]) {
-      continue
-    }
-
-    if (key === 'value') {
+    if (key === 'value' && elm.tagName !== 'PROGRESS') {
       // store value as _value as well since
       // non-string values will be stringified
       elm._value = cur;
@@ -6960,8 +6973,18 @@ function updateDOMProps (oldVnode, vnode) {
       while (svg.firstChild) {
         elm.appendChild(svg.firstChild);
       }
-    } else {
-      elm[key] = cur;
+    } else if (
+      // skip the update if old and new VDOM state is the same.
+      // `value` is handled separately because the DOM value may be temporarily
+      // out of sync with VDOM state due to focus, composition and modifiers.
+      // This  #4521 by skipping the unnecesarry `checked` update.
+      cur !== oldProps[key]
+    ) {
+      // some property updates can throw
+      // e.g. `value` on <progress> w/ non-finite value
+      try {
+        elm[key] = cur;
+      } catch (e) {}
     }
   }
 }
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 083ae0a5d97..7a96c8366cf 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1816,23 +1816,30 @@
   /*  */
 
   function handleError (err, vm, info) {
-    if (vm) {
-      var cur = vm;
-      while ((cur = cur.$parent)) {
-        var hooks = cur.$options.errorCaptured;
-        if (hooks) {
-          for (var i = 0; i < hooks.length; i++) {
-            try {
-              var capture = hooks[i].call(cur, err, vm, info) === false;
-              if (capture) { return }
-            } catch (e) {
-              globalHandleError(e, cur, 'errorCaptured hook');
+    // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+    // See: https://github.com/vuejs/vuex/issues/1505
+    pushTarget();
+    try {
+      if (vm) {
+        var cur = vm;
+        while ((cur = cur.$parent)) {
+          var hooks = cur.$options.errorCaptured;
+          if (hooks) {
+            for (var i = 0; i < hooks.length; i++) {
+              try {
+                var capture = hooks[i].call(cur, err, vm, info) === false;
+                if (capture) { return }
+              } catch (e) {
+                globalHandleError(e, cur, 'errorCaptured hook');
+              }
             }
           }
         }
       }
+      globalHandleError(err, vm, info);
+    } finally {
+      popTarget();
     }
-    globalHandleError(err, vm, info);
   }
 
   function invokeWithErrorHandling (
@@ -1846,7 +1853,9 @@
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
       if (res && !res._isVue && isPromise(res)) {
-        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+        // issue #9511
+        // reassign to res to avoid catch triggering multiple times when nested calls
+        res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       }
     } catch (e) {
       handleError(e, vm, info);
@@ -2529,15 +2538,18 @@
     prevSlots
   ) {
     var res;
+    var isStable = slots ? !!slots.$stable : true;
+    var key = slots && slots.$key;
     if (!slots) {
       res = {};
     } else if (slots._normalized) {
       // fast path 1: child component re-render only, parent did not change
       return slots._normalized
     } else if (
-      slots.$stable &&
+      isStable &&
       prevSlots &&
       prevSlots !== emptyObject &&
+      key === prevSlots.$key &&
       Object.keys(normalSlots).length === 0
     ) {
       // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -2545,16 +2557,16 @@
       return prevSlots
     } else {
       res = {};
-      for (var key in slots) {
-        if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+      for (var key$1 in slots) {
+        if (slots[key$1] && key$1[0] !== '$') {
+          res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
         }
       }
     }
     // expose normal slots on scopedSlots
-    for (var key$1 in normalSlots) {
-      if (!(key$1 in res)) {
-        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    for (var key$2 in normalSlots) {
+      if (!(key$2 in res)) {
+        res[key$2] = proxyNormalSlot(normalSlots, key$2);
       }
     }
     // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -2562,7 +2574,8 @@
     if (slots && Object.isExtensible(slots)) {
       (slots)._normalized = res;
     }
-    def(res, '$stable', slots ? !!slots.$stable : true);
+    def(res, '$stable', isStable);
+    def(res, '$key', key);
     return res
   }
 
@@ -2857,14 +2870,16 @@
 
   function resolveScopedSlots (
     fns, // see flow/vnode
+    res,
+    // the following are added in 2.6
     hasDynamicKeys,
-    res
+    contentHashKey
   ) {
     res = res || { $stable: !hasDynamicKeys };
     for (var i = 0; i < fns.length; i++) {
       var slot = fns[i];
       if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, hasDynamicKeys, res);
+        resolveScopedSlots(slot, res, hasDynamicKeys);
       } else if (slot) {
         // marker for reverse proxying v-slot without scope on this.$slots
         if (slot.proxy) {
@@ -2873,6 +2888,9 @@
         res[slot.key] = slot.fn;
       }
     }
+    if (contentHashKey) {
+      (res).$key = contentHashKey;
+    }
     return res
   }
 
@@ -4050,9 +4068,12 @@
     // check if there are dynamic scopedSlots (hand-written or compiled but with
     // dynamic slot names). Static scoped slots compiled from template has the
     // "$stable" marker.
+    var newScopedSlots = parentVnode.data.scopedSlots;
+    var oldScopedSlots = vm.$scopedSlots;
     var hasDynamicScopedSlot = !!(
-      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+      (newScopedSlots && !newScopedSlots.$stable) ||
+      (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+      (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
     );
 
     // Any static slot children from the parent may have changed during parent's
@@ -5374,7 +5395,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.6';
+  Vue.version = '2.6.7';
 
   /*  */
 
@@ -6914,15 +6935,7 @@
         }
       }
 
-      // skip the update if old and new VDOM state is the same.
-      // the only exception is `value` where the DOM value may be temporarily
-      // out of sync with VDOM state due to focus, composition and modifiers.
-      // This also covers #4521 by skipping the unnecesarry `checked` update.
-      if (key !== 'value' && cur === oldProps[key]) {
-        continue
-      }
-
-      if (key === 'value') {
+      if (key === 'value' && elm.tagName !== 'PROGRESS') {
         // store value as _value as well since
         // non-string values will be stringified
         elm._value = cur;
@@ -6942,8 +6955,18 @@
         while (svg.firstChild) {
           elm.appendChild(svg.firstChild);
         }
-      } else {
-        elm[key] = cur;
+      } else if (
+        // skip the update if old and new VDOM state is the same.
+        // `value` is handled separately because the DOM value may be temporarily
+        // out of sync with VDOM state due to focus, composition and modifiers.
+        // This  #4521 by skipping the unnecesarry `checked` update.
+        cur !== oldProps[key]
+      ) {
+        // some property updates can throw
+        // e.g. `value` on <progress> w/ non-finite value
+        try {
+          elm[key] = cur;
+        } catch (e) {}
       }
     }
   }
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index ad386054d0d..ba576489bed 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.6
+ * Vue.js v2.6.7
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(t,e){return h.call(t,e)}function y(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}var g=/-(\w)/g,_=y(function(t){return t.replace(g,function(t,e){return e?e.toUpperCase():""})}),b=y(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),C=/\B([A-Z])/g,w=y(function(t){return t.replace(C,"-$1").toLowerCase()});var $=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function x(t,e){for(var n in e)t[n]=e[n];return t}function O(t){for(var e={},n=0;n<t.length;n++)t[n]&&x(e,t[n]);return e}function k(t,e,n){}var S=function(t,e,n){return!1},j=function(t){return t};function E(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var o=Array.isArray(t),a=Array.isArray(e);if(o&&a)return t.length===e.length&&t.every(function(t,n){return E(t,e[n])});if(t instanceof Date&&e instanceof Date)return t.getTime()===e.getTime();if(o||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return E(t[n],e[n])})}catch(t){return!1}}function T(t,e){for(var n=0;n<t.length;n++)if(E(t[n],e))return n;return-1}function I(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}var 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void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function vo(t,e){return e.every(function(e){return!E(e,t)})}function ho(t){return"_value"in t?t._value:t.value}function mo(t){t.target.composing=!0}function yo(t){t.target.composing&&(t.target.composing=!1,go(t.target,"input"))}function go(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function _o(t){return!t.componentInstance||t.data&&t.data.transition?t:_o(t.componentInstance._vnode)}var bo={model:lo,show:{bind:function(t,e,n){var r=e.value,o=(n=_o(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,oo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=_o(n)).data&&n.data.transition?(n.data.show=!0,r?oo(n,function(){t.style.display=t.__vOriginalDisplay}):io(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Co={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function $o(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?$o(He(e.children)):t}function wo(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Ao(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var xo=function(t){return t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=$o(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=wo(this),u=this._vnode,l=$o(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function jo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function Eo(t){t.data.newPos=t.elm.getBoundingClientRect()}function To(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var Io={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=wo(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(jo),t.forEach(Eo),t.forEach(To),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Fr(n,t)}),Rr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return _n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=Bn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return zn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(Bn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,Io),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),_n});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 38b66c88d9b..74285437ca3 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -1970,23 +1970,30 @@
   /*  */
 
   function handleError (err, vm, info) {
-    if (vm) {
-      var cur = vm;
-      while ((cur = cur.$parent)) {
-        var hooks = cur.$options.errorCaptured;
-        if (hooks) {
-          for (var i = 0; i < hooks.length; i++) {
-            try {
-              var capture = hooks[i].call(cur, err, vm, info) === false;
-              if (capture) { return }
-            } catch (e) {
-              globalHandleError(e, cur, 'errorCaptured hook');
+    // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+    // See: https://github.com/vuejs/vuex/issues/1505
+    pushTarget();
+    try {
+      if (vm) {
+        var cur = vm;
+        while ((cur = cur.$parent)) {
+          var hooks = cur.$options.errorCaptured;
+          if (hooks) {
+            for (var i = 0; i < hooks.length; i++) {
+              try {
+                var capture = hooks[i].call(cur, err, vm, info) === false;
+                if (capture) { return }
+              } catch (e) {
+                globalHandleError(e, cur, 'errorCaptured hook');
+              }
             }
           }
         }
       }
+      globalHandleError(err, vm, info);
+    } finally {
+      popTarget();
     }
-    globalHandleError(err, vm, info);
   }
 
   function invokeWithErrorHandling (
@@ -2000,7 +2007,9 @@
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
       if (res && !res._isVue && isPromise(res)) {
-        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+        // issue #9511
+        // reassign to res to avoid catch triggering multiple times when nested calls
+        res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       }
     } catch (e) {
       handleError(e, vm, info);
@@ -5532,22 +5541,49 @@
         containsSlotChild(slot) // is passing down slot from parent which may be dynamic
       )
     });
-    // OR when it is inside another scoped slot (the reactivity is disconnected)
-    // #9438
+
+    // #9534: if a component with scoped slots is inside a conditional branch,
+    // it's possible for the same component to be reused but with different
+    // compiled slot content. To avoid that, we generate a unique key based on
+    // the generated code of all the slot contents.
+    var needsKey = !!el.if;
+
+    // OR when it is inside another scoped slot or v-for (the reactivity may be
+    // disconnected due to the intermediate scope variable)
+    // #9438, #9506
+    // TODO: this can be further optimized by properly analyzing in-scope bindings
+    // and skip force updating ones that do not actually use scope variables.
     if (!needsForceUpdate) {
       var parent = el.parent;
       while (parent) {
-        if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        if (
+          (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+          parent.for
+        ) {
           needsForceUpdate = true;
           break
         }
+        if (parent.if) {
+          needsKey = true;
+        }
         parent = parent.parent;
       }
     }
 
-    return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-        return genScopedSlot(slots[key], state)
-      }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+    var generatedSlots = Object.keys(slots)
+      .map(function (key) { return genScopedSlot(slots[key], state); })
+      .join(',');
+
+    return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+  }
+
+  function hash(str) {
+    var hash = 5381;
+    var i = str.length;
+    while(i) {
+      hash = (hash * 33) ^ str.charCodeAt(--i);
+    }
+    return hash >>> 0
   }
 
   function containsSlotChild (el) {
@@ -6353,11 +6389,13 @@
 
   function repeat$1 (str, n) {
     var result = '';
-    while (true) { // eslint-disable-line
-      if (n & 1) { result += str; }
-      n >>>= 1;
-      if (n <= 0) { break }
-      str += str;
+    if (n > 0) {
+      while (true) { // eslint-disable-line
+        if (n & 1) { result += str; }
+        n >>>= 1;
+        if (n <= 0) { break }
+        str += str;
+      }
     }
     return result
   }
@@ -7400,14 +7438,16 @@
 
   function resolveScopedSlots (
     fns, // see flow/vnode
+    res,
+    // the following are added in 2.6
     hasDynamicKeys,
-    res
+    contentHashKey
   ) {
     res = res || { $stable: !hasDynamicKeys };
     for (var i = 0; i < fns.length; i++) {
       var slot = fns[i];
       if (Array.isArray(slot)) {
-        resolveScopedSlots(slot, hasDynamicKeys, res);
+        resolveScopedSlots(slot, res, hasDynamicKeys);
       } else if (slot) {
         // marker for reverse proxying v-slot without scope on this.$slots
         if (slot.proxy) {
@@ -7416,6 +7456,9 @@
         res[slot.key] = slot.fn;
       }
     }
+    if (contentHashKey) {
+      (res).$key = contentHashKey;
+    }
     return res
   }
 
@@ -7525,15 +7568,18 @@
     prevSlots
   ) {
     var res;
+    var isStable = slots ? !!slots.$stable : true;
+    var key = slots && slots.$key;
     if (!slots) {
       res = {};
     } else if (slots._normalized) {
       // fast path 1: child component re-render only, parent did not change
       return slots._normalized
     } else if (
-      slots.$stable &&
+      isStable &&
       prevSlots &&
       prevSlots !== emptyObject &&
+      key === prevSlots.$key &&
       Object.keys(normalSlots).length === 0
     ) {
       // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -7541,16 +7587,16 @@
       return prevSlots
     } else {
       res = {};
-      for (var key in slots) {
-        if (slots[key] && key[0] !== '$') {
-          res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+      for (var key$1 in slots) {
+        if (slots[key$1] && key$1[0] !== '$') {
+          res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
         }
       }
     }
     // expose normal slots on scopedSlots
-    for (var key$1 in normalSlots) {
-      if (!(key$1 in res)) {
-        res[key$1] = proxyNormalSlot(normalSlots, key$1);
+    for (var key$2 in normalSlots) {
+      if (!(key$2 in res)) {
+        res[key$2] = proxyNormalSlot(normalSlots, key$2);
       }
     }
     // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -7558,7 +7604,8 @@
     if (slots && Object.isExtensible(slots)) {
       (slots)._normalized = res;
     }
-    def(res, '$stable', slots ? !!slots.$stable : true);
+    def(res, '$stable', isStable);
+    def(res, '$key', key);
     return res
   }
 
@@ -7782,9 +7829,12 @@
     // check if there are dynamic scopedSlots (hand-written or compiled but with
     // dynamic slot names). Static scoped slots compiled from template has the
     // "$stable" marker.
+    var newScopedSlots = parentVnode.data.scopedSlots;
+    var oldScopedSlots = vm.$scopedSlots;
     var hasDynamicScopedSlot = !!(
-      (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-      (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+      (newScopedSlots && !newScopedSlots.$stable) ||
+      (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+      (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
     );
 
     // Any static slot children from the parent may have changed during parent's
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 6dee9f5bec0..49513f839e6 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -1972,23 +1972,30 @@ function isBoolean () {
 /*  */
 
 function handleError (err, vm, info) {
-  if (vm) {
-    var cur = vm;
-    while ((cur = cur.$parent)) {
-      var hooks = cur.$options.errorCaptured;
-      if (hooks) {
-        for (var i = 0; i < hooks.length; i++) {
-          try {
-            var capture = hooks[i].call(cur, err, vm, info) === false;
-            if (capture) { return }
-          } catch (e) {
-            globalHandleError(e, cur, 'errorCaptured hook');
+  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.
+  // See: https://github.com/vuejs/vuex/issues/1505
+  pushTarget();
+  try {
+    if (vm) {
+      var cur = vm;
+      while ((cur = cur.$parent)) {
+        var hooks = cur.$options.errorCaptured;
+        if (hooks) {
+          for (var i = 0; i < hooks.length; i++) {
+            try {
+              var capture = hooks[i].call(cur, err, vm, info) === false;
+              if (capture) { return }
+            } catch (e) {
+              globalHandleError(e, cur, 'errorCaptured hook');
+            }
           }
         }
       }
     }
+    globalHandleError(err, vm, info);
+  } finally {
+    popTarget();
   }
-  globalHandleError(err, vm, info);
 }
 
 function invokeWithErrorHandling (
@@ -2002,7 +2009,9 @@ function invokeWithErrorHandling (
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
     if (res && !res._isVue && isPromise(res)) {
-      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // issue #9511
+      // reassign to res to avoid catch triggering multiple times when nested calls
+      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -5282,22 +5291,49 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   });
-  // OR when it is inside another scoped slot (the reactivity is disconnected)
-  // #9438
+
+  // #9534: if a component with scoped slots is inside a conditional branch,
+  // it's possible for the same component to be reused but with different
+  // compiled slot content. To avoid that, we generate a unique key based on
+  // the generated code of all the slot contents.
+  var needsKey = !!el.if;
+
+  // OR when it is inside another scoped slot or v-for (the reactivity may be
+  // disconnected due to the intermediate scope variable)
+  // #9438, #9506
+  // TODO: this can be further optimized by properly analyzing in-scope bindings
+  // and skip force updating ones that do not actually use scope variables.
   if (!needsForceUpdate) {
     var parent = el.parent;
     while (parent) {
-      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+      if (
+        (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+        parent.for
+      ) {
         needsForceUpdate = true;
         break
       }
+      if (parent.if) {
+        needsKey = true;
+      }
       parent = parent.parent;
     }
   }
 
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+  var generatedSlots = Object.keys(slots)
+    .map(function (key) { return genScopedSlot(slots[key], state); })
+    .join(',');
+
+  return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+}
+
+function hash(str) {
+  var hash = 5381;
+  var i = str.length;
+  while(i) {
+    hash = (hash * 33) ^ str.charCodeAt(--i);
+  }
+  return hash >>> 0
 }
 
 function containsSlotChild (el) {
@@ -6103,11 +6139,13 @@ function generateCodeFrame (
 
 function repeat$1 (str, n) {
   var result = '';
-  while (true) { // eslint-disable-line
-    if (n & 1) { result += str; }
-    n >>>= 1;
-    if (n <= 0) { break }
-    str += str;
+  if (n > 0) {
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
   }
   return result
 }
@@ -7150,14 +7188,16 @@ function bindObjectListeners (data, value) {
 
 function resolveScopedSlots (
   fns, // see flow/vnode
+  res,
+  // the following are added in 2.6
   hasDynamicKeys,
-  res
+  contentHashKey
 ) {
   res = res || { $stable: !hasDynamicKeys };
   for (var i = 0; i < fns.length; i++) {
     var slot = fns[i];
     if (Array.isArray(slot)) {
-      resolveScopedSlots(slot, hasDynamicKeys, res);
+      resolveScopedSlots(slot, res, hasDynamicKeys);
     } else if (slot) {
       // marker for reverse proxying v-slot without scope on this.$slots
       if (slot.proxy) {
@@ -7166,6 +7206,9 @@ function resolveScopedSlots (
       res[slot.key] = slot.fn;
     }
   }
+  if (contentHashKey) {
+    (res).$key = contentHashKey;
+  }
   return res
 }
 
@@ -7275,15 +7318,18 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
+  var isStable = slots ? !!slots.$stable : true;
+  var key = slots && slots.$key;
   if (!slots) {
     res = {};
   } else if (slots._normalized) {
     // fast path 1: child component re-render only, parent did not change
     return slots._normalized
   } else if (
-    slots.$stable &&
+    isStable &&
     prevSlots &&
     prevSlots !== emptyObject &&
+    key === prevSlots.$key &&
     Object.keys(normalSlots).length === 0
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
@@ -7291,16 +7337,16 @@ function normalizeScopedSlots (
     return prevSlots
   } else {
     res = {};
-    for (var key in slots) {
-      if (slots[key] && key[0] !== '$') {
-        res[key] = normalizeScopedSlot(normalSlots, key, slots[key]);
+    for (var key$1 in slots) {
+      if (slots[key$1] && key$1[0] !== '$') {
+        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);
       }
     }
   }
   // expose normal slots on scopedSlots
-  for (var key$1 in normalSlots) {
-    if (!(key$1 in res)) {
-      res[key$1] = proxyNormalSlot(normalSlots, key$1);
+  for (var key$2 in normalSlots) {
+    if (!(key$2 in res)) {
+      res[key$2] = proxyNormalSlot(normalSlots, key$2);
     }
   }
   // avoriaz seems to mock a non-extensible $scopedSlots object
@@ -7308,7 +7354,8 @@ function normalizeScopedSlots (
   if (slots && Object.isExtensible(slots)) {
     (slots)._normalized = res;
   }
-  def(res, '$stable', slots ? !!slots.$stable : true);
+  def(res, '$stable', isStable);
+  def(res, '$key', key);
   return res
 }
 
@@ -7532,9 +7579,12 @@ function updateChildComponent (
   // check if there are dynamic scopedSlots (hand-written or compiled but with
   // dynamic slot names). Static scoped slots compiled from template has the
   // "$stable" marker.
+  var newScopedSlots = parentVnode.data.scopedSlots;
+  var oldScopedSlots = vm.$scopedSlots;
   var hasDynamicScopedSlot = !!(
-    (parentVnode.data.scopedSlots && !parentVnode.data.scopedSlots.$stable) ||
-    (vm.$scopedSlots !== emptyObject && !vm.$scopedSlots.$stable)
+    (newScopedSlots && !newScopedSlots.$stable) ||
+    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||
+    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)
   );
 
   // Any static slot children from the parent may have changed during parent's
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index b2e0f7c015b..4d4840a8d3c 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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o=i._render();o.parent=e,r.renderStates.push({type:"Component",prevActive:n}),Qi(o,t,r)},o)}function no(e,t,r,n){return function(i,o,a,s){Vi=Object.create(null);var c=new bt({activeInstance:i,userContext:a,write:o,done:s,renderNode:Qi,isUnaryTag:r,modules:e,directives:t,cache:n});!function(e){if(!e._ssrNode){for(var t=e.constructor;t.super;)t=t.super;$(t.prototype,ei),t.FunctionalRenderContext&&$(t.FunctionalRenderContext.prototype,ei)}}(i),Xi(i);Gi(i,function(){Qi(i._render(),!0,c)},s)}}var io=function(e){return/\.js(\?[^.]+)?$/.test(e)};function oo(){var e,t;return{promise:new Promise(function(r,n){e=r,t=n}),cb:function(r,n){if(r)return t(r);e(n||"")}}}var ao=function(e){function t(t,r,n){e.call(this),this.started=!1,this.renderer=t,this.template=r,this.context=n||{},this.inject=t.inject}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype._transform=function(e,t,r){this.started||(this.emit("beforeStart"),this.start()),this.push(e),r()},t.prototype.start=function(){if(this.started=!0,this.push(this.template.head(this.context)),this.inject){this.context.head&&this.push(this.context.head);var e=this.renderer.renderResourceHints(this.context);e&&this.push(e);var t=this.renderer.renderStyles(this.context);t&&this.push(t)}this.push(this.template.neck(this.context))},t.prototype._flush=function(e){if(this.emit("beforeEnd"),this.inject){var t=this.renderer.renderState(this.context);t&&this.push(t);var r=this.renderer.renderScripts(this.context);r&&this.push(r)}this.push(this.template.tail(this.context)),e()},t}(require("stream").Transform),so=require("lodash.template"),co={escape:/{{([^{][\s\S]+?[^}])}}/g,interpolate:/{{{([\s\S]+?)}}}/g};function uo(e){var t=function(e){var t=new Map;return Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.js($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var lo=require("path"),fo=require("serialize-javascript"),po=function(e){this.options=e,this.inject=!1!==e.inject;var t=e.template;if(this.parsedTemplate=t?"string"==typeof t?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:so(e.slice(0,r),co),neck:so(e.slice(r,n),co),tail:so(e.slice(n+t.length),co)}}(t):t:null,this.serialize=e.serializer||function(e){return fo(e,{isJSON:!0})},e.clientManifest){var r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(vo),this.prefetchFiles=(r.async||[]).map(vo),this.mapFiles=uo(r)}};function vo(e){var t=e.replace(/\?.*/,""),r=lo.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:ho(r)}}function ho(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}po.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},po.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},po.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},po.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},po.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},po.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},po.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},po.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},po.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return io(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return io(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},po.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(vo)}return e._mappedFiles},po.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new ao(this,this.parsedTemplate,e||{})};var mo=require("vm"),yo=require("path"),go=require("resolve"),bo=require("module");function _o(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function wo(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=bo.wrap(r),o=new mo.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=yo.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=go.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function xo(e,t,r,n){var i,o,a=wo(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,_o(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?_o():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var So=require("source-map").SourceMapConsumer,$o=/\(([^)]+\.js):(\d+):(\d+)\)$/;function Ao(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match($o),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace($o,c)}return e}return e}(e,t)}).join("\n"))}var Oo=require("fs"),ko=require("path"),Co=require("stream").PassThrough,To="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function jo(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=no(t,r,n,a),p=new po({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=oo()).promise,r=n.cb);var a="",s=yt(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new gt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}($($({},e),{isUnaryTag:ft,canBeLeftOpenTag:pt,modules:st,directives:$(lt,e.directives)}))}process.env.VUE_ENV="server";var Fo=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&ko.isAbsolute(t)){if(!Oo.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||ko.dirname(t),t=Oo.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new So(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(To)}else{if("string"!=typeof t)throw new Error(To);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=xo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=oo()).promise,t=r.cb),u(e).catch(function(e){Ao(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){Ao(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Co;return u(e).catch(function(e){Ao(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){Ao(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(jo);exports.createRenderer=jo,exports.createBundleRenderer=Fo;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 4f301559f55..1975830cdc8 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.6",
+  "version": "2.6.7",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 15c1c2bde38..8ca0709a034 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -4592,22 +4592,49 @@
         containsSlotChild(slot) // is passing down slot from parent which may be dynamic
       )
     });
-    // OR when it is inside another scoped slot (the reactivity is disconnected)
-    // #9438
+
+    // #9534: if a component with scoped slots is inside a conditional branch,
+    // it's possible for the same component to be reused but with different
+    // compiled slot content. To avoid that, we generate a unique key based on
+    // the generated code of all the slot contents.
+    var needsKey = !!el.if;
+
+    // OR when it is inside another scoped slot or v-for (the reactivity may be
+    // disconnected due to the intermediate scope variable)
+    // #9438, #9506
+    // TODO: this can be further optimized by properly analyzing in-scope bindings
+    // and skip force updating ones that do not actually use scope variables.
     if (!needsForceUpdate) {
       var parent = el.parent;
       while (parent) {
-        if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+        if (
+          (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+          parent.for
+        ) {
           needsForceUpdate = true;
           break
         }
+        if (parent.if) {
+          needsKey = true;
+        }
         parent = parent.parent;
       }
     }
 
-    return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-        return genScopedSlot(slots[key], state)
-      }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+    var generatedSlots = Object.keys(slots)
+      .map(function (key) { return genScopedSlot(slots[key], state); })
+      .join(',');
+
+    return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+  }
+
+  function hash(str) {
+    var hash = 5381;
+    var i = str.length;
+    while(i) {
+      hash = (hash * 33) ^ str.charCodeAt(--i);
+    }
+    return hash >>> 0
   }
 
   function containsSlotChild (el) {
@@ -4942,11 +4969,13 @@
 
   function repeat$1 (str, n) {
     var result = '';
-    while (true) { // eslint-disable-line
-      if (n & 1) { result += str; }
-      n >>>= 1;
-      if (n <= 0) { break }
-      str += str;
+    if (n > 0) {
+      while (true) { // eslint-disable-line
+        if (n & 1) { result += str; }
+        n >>>= 1;
+        if (n <= 0) { break }
+        str += str;
+      }
     }
     return result
   }
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 9ff815c0908..b8e10425879 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -4225,22 +4225,49 @@ function genScopedSlots (
       containsSlotChild(slot) // is passing down slot from parent which may be dynamic
     )
   });
-  // OR when it is inside another scoped slot (the reactivity is disconnected)
-  // #9438
+
+  // #9534: if a component with scoped slots is inside a conditional branch,
+  // it's possible for the same component to be reused but with different
+  // compiled slot content. To avoid that, we generate a unique key based on
+  // the generated code of all the slot contents.
+  var needsKey = !!el.if;
+
+  // OR when it is inside another scoped slot or v-for (the reactivity may be
+  // disconnected due to the intermediate scope variable)
+  // #9438, #9506
+  // TODO: this can be further optimized by properly analyzing in-scope bindings
+  // and skip force updating ones that do not actually use scope variables.
   if (!needsForceUpdate) {
     var parent = el.parent;
     while (parent) {
-      if (parent.slotScope && parent.slotScope !== emptySlotScopeToken) {
+      if (
+        (parent.slotScope && parent.slotScope !== emptySlotScopeToken) ||
+        parent.for
+      ) {
         needsForceUpdate = true;
         break
       }
+      if (parent.if) {
+        needsKey = true;
+      }
       parent = parent.parent;
     }
   }
 
-  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) {
-      return genScopedSlot(slots[key], state)
-    }).join(',')) + "]" + (needsForceUpdate ? ",true" : "") + ")")
+  var generatedSlots = Object.keys(slots)
+    .map(function (key) { return genScopedSlot(slots[key], state); })
+    .join(',');
+
+  return ("scopedSlots:_u([" + generatedSlots + "]" + (needsForceUpdate ? ",null,true" : "") + (!needsForceUpdate && needsKey ? (",null,false," + (hash(generatedSlots))) : "") + ")")
+}
+
+function hash(str) {
+  var hash = 5381;
+  var i = str.length;
+  while(i) {
+    hash = (hash * 33) ^ str.charCodeAt(--i);
+  }
+  return hash >>> 0
 }
 
 function containsSlotChild (el) {
@@ -4575,11 +4602,13 @@ function generateCodeFrame (
 
 function repeat$1 (str, n) {
   var result = '';
-  while (true) { // eslint-disable-line
-    if (n & 1) { result += str; }
-    n >>>= 1;
-    if (n <= 0) { break }
-    str += str;
+  if (n > 0) {
+    while (true) { // eslint-disable-line
+      if (n & 1) { result += str; }
+      n >>>= 1;
+      if (n <= 0) { break }
+      str += str;
+    }
   }
   return result
 }
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 5010a2817f0..4d0e685087f 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.6",
+  "version": "2.6.7",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 59d8579fbd3a3450ab684d6a596f1853f2257d08 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 21 Feb 2019 17:06:20 -0500
Subject: [PATCH 831/911] build: release 2.6.7

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 3f0173cb80a..e8055dbb25e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.6",
+  "version": "2.6.7",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 2ec5b640f55a34df1b70aa9d59b08385c2f7ac20 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Wed, 27 Feb 2019 09:30:04 -0500
Subject: [PATCH 832/911] chore: update sponsors [ci skip] (#9588)

---
 BACKERS.md | 2 +-
 README.md  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 1c0144c18bc..9cd7ae6ed05 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -163,7 +163,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://syncfusion.com/products/vue" target="_blank">
+        <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
diff --git a/README.md b/README.md
index 0b5eeaab640..4939724bf33 100644
--- a/README.md
+++ b/README.md
@@ -168,7 +168,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://syncfusion.com/products/vue" target="_blank">
+        <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>

From 060c3b98efa44a9f21bcc038a2593b1cc3c782e9 Mon Sep 17 00:00:00 2001
From: DSha <shasharoman@gmail.com>
Date: Thu, 28 Feb 2019 22:36:47 +0800
Subject: [PATCH 833/911] fix: fix modifier parsing for dynamic argument with
 deep path (#9585)

fix #9577
---
 src/compiler/parser/index.js                  |  2 +-
 test/unit/features/options/directives.spec.js | 78 +++++++++++++++++++
 2 files changed, 79 insertions(+), 1 deletion(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 0279f0ffdbf..01cbadd1ded 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -33,7 +33,7 @@ const dynamicArgRE = /^\[.*\]$/
 const argRE = /:(.*)$/
 export const bindRE = /^:|^\.|^v-bind:/
 const propBindRE = /^\./
-const modifierRE = /\.[^.]+/g
+const modifierRE = /\.[^.\]]+(?=[^\]]*$)/g
 
 const slotRE = /^v-slot(:|$)|^#/
 
diff --git a/test/unit/features/options/directives.spec.js b/test/unit/features/options/directives.spec.js
index 4f9a23ce79c..f7a69402d0b 100644
--- a/test/unit/features/options/directives.spec.js
+++ b/test/unit/features/options/directives.spec.js
@@ -287,4 +287,82 @@ describe('Options directives', () => {
     }).$mount()
     vm.key = 'bar'
   })
+
+  it('deep object like `deep.a` as dynamic arguments', done => {
+    const vm = new Vue({
+      template: `<div v-my:[deep.a]="1"/>`,
+      data: {
+        deep: {
+          a: 'foo'
+        }
+      },
+      directives: {
+        my: {
+          bind(el, binding) {
+            expect(binding.arg).toBe('foo')
+          },
+          update(el, binding) {
+            expect(binding.arg).toBe('bar')
+            expect(binding.oldArg).toBe('foo')
+            done()
+          }
+        }
+      }
+    }).$mount()
+    vm.deep.a = 'bar'
+  })
+
+  it('deep object like `deep.a.b` as dynamic arguments', done => {
+    const vm = new Vue({
+      template: `<div v-my:[deep.a.b]="1"/>`,
+      data: {
+        deep: {
+          a: {
+            b: 'foo'
+          }
+        }
+      },
+      directives: {
+        my: {
+          bind(el, binding) {
+            expect(binding.arg).toBe('foo')
+          },
+          update(el, binding) {
+            expect(binding.arg).toBe('bar')
+            expect(binding.oldArg).toBe('foo')
+            done()
+          }
+        }
+      }
+    }).$mount()
+    vm.deep.a.b = 'bar'
+  })
+
+  it('deep object as dynamic arguments with modifiers', done => {
+    const vm = new Vue({
+      template: `<div v-my:[deep.a.b].x.y="1"/>`,
+      data: {
+        deep: {
+          a: {
+            b: 'foo'
+          }
+        }
+      },
+      directives: {
+        my: {
+          bind(el, binding) {
+            expect(binding.arg).toBe('foo')
+            expect(binding.modifiers.x).toBe(true)
+            expect(binding.modifiers.y).toBe(true)
+          },
+          update(el, binding) {
+            expect(binding.arg).toBe('bar')
+            expect(binding.oldArg).toBe('foo')
+            done()
+          }
+        }
+      }
+    }).$mount()
+    vm.deep.a.b = 'bar'
+  })
 })

From 7912f75c5eb09e0aef3e4bfd8a3bb78cad7540d7 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Fri, 1 Mar 2019 01:10:38 +0800
Subject: [PATCH 834/911] fix: avoid compression of unicode sequences by using
 regexps (#9595)

closes #9456
---
 src/compiler/parser/html-parser.js | 4 ++--
 src/core/util/lang.js              | 4 ++--
 src/core/util/options.js           | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index 3139721c366..b574e9c40ed 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -11,12 +11,12 @@
 
 import { makeMap, no } from 'shared/util'
 import { isNonPhrasingTag } from 'web/compiler/util'
-import { unicodeLetters } from 'core/util/lang'
+import { unicodeRegExp } from 'core/util/lang'
 
 // Regular Expressions for parsing tags and attributes
 const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/
 const dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/
-const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeLetters}]*`
+const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeRegExp.source}]*`
 const qnameCapture = `((?:${ncname}\\:)?${ncname})`
 const startTagOpen = new RegExp(`^<${qnameCapture}`)
 const startTagClose = /^\s*(\/?)>/
diff --git a/src/core/util/lang.js b/src/core/util/lang.js
index b9026762506..89436944d39 100644
--- a/src/core/util/lang.js
+++ b/src/core/util/lang.js
@@ -5,7 +5,7 @@
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-export const unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD'
+export const unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/
 
 /**
  * Check if a string starts with $ or _
@@ -30,7 +30,7 @@ export function def (obj: Object, key: string, val: any, enumerable?: boolean) {
 /**
  * Parse simple path.
  */
-const bailRE = new RegExp(`[^${unicodeLetters}.$_\\d]`)
+const bailRE = new RegExp(`[^${unicodeRegExp.source}.$_\\d]`)
 export function parsePath (path: string): any {
   if (bailRE.test(path)) {
     return
diff --git a/src/core/util/options.js b/src/core/util/options.js
index 20aba22709b..243567859de 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -3,7 +3,7 @@
 import config from '../config'
 import { warn } from './debug'
 import { set } from '../observer/index'
-import { unicodeLetters } from './lang'
+import { unicodeRegExp } from './lang'
 import { nativeWatch, hasSymbol } from './env'
 
 import {
@@ -277,7 +277,7 @@ function checkComponents (options: Object) {
 }
 
 export function validateComponentName (name: string) {
-  if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeLetters}]*$`).test(name)) {
+  if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeRegExp.source}]*$`).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
       'should conform to valid custom element name in html5 specification.'

From 2277b2322cf81b5830a5b85f6600e1896edc7aa9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 28 Feb 2019 14:36:47 -0500
Subject: [PATCH 835/911] fix: scoped slots dynamic check should include v-for
 on element itself

fix #9596
---
 src/compiler/codegen/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/codegen/index.js b/src/compiler/codegen/index.js
index d433f756282..c96b3a38511 100644
--- a/src/compiler/codegen/index.js
+++ b/src/compiler/codegen/index.js
@@ -366,7 +366,7 @@ function genScopedSlots (
   // components with only scoped slots to skip forced updates from parent.
   // but in some cases we have to bail-out of this optimization
   // for example if the slot contains dynamic names, has v-if or v-for on them...
-  let needsForceUpdate = Object.keys(slots).some(key => {
+  let needsForceUpdate = el.for || Object.keys(slots).some(key => {
     const slot = slots[key]
     return (
       slot.slotTargetDynamic ||

From f33301619d18b9392597c5230af17921c0b42466 Mon Sep 17 00:00:00 2001
From: Gcaufy <gcaufy@gmail.com>
Date: Fri, 1 Mar 2019 05:54:07 +0800
Subject: [PATCH 836/911] fix(types): update this for nextTick api (#9541)

---
 types/test/vue-test.ts | 3 +++
 types/vue.d.ts         | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 57cafc478fa..54c4405264d 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -86,6 +86,9 @@ class Test extends Vue {
       }
     });
     this.nextTick(() => {});
+    this.nextTick(function () {
+      console.log(this.text === 'test');
+    }, { text: 'test'});
     this.nextTick().then(() => {});
     this.set({}, "", "");
     this.set({}, 1, "");
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 55e44657430..7391bbbd321 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -89,7 +89,7 @@ export interface VueConstructor<V extends Vue = Vue> {
   extend<Props>(definition: FunctionalComponentOptions<Props, RecordPropsDefinition<Props>>): ExtendedVue<V, {}, {}, {}, Props>;
   extend(options?: ComponentOptions<V>): ExtendedVue<V, {}, {}, {}, {}>;
 
-  nextTick(callback: () => void, context?: any[]): void;
+  nextTick<T>(callback: (this: T) => void, context?: T): void;
   nextTick(): Promise<void>
   set<T>(object: object, key: string | number, value: T): T;
   set<T>(array: T[], key: number, value: T): T;

From 241eea19a64550bfdb3f9d7e4197127997572842 Mon Sep 17 00:00:00 2001
From: Kael <kaelwd@gmail.com>
Date: Fri, 1 Mar 2019 09:03:28 +1100
Subject: [PATCH 837/911] fix(types): allow scoped slots to return a single
 VNode (#9563)

---
 types/test/options-test.ts | 4 ++++
 types/vnode.d.ts           | 6 +++++-
 types/vue.d.ts             | 4 ++--
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 166d8806108..2c67efe0665 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -323,6 +323,10 @@ Vue.component('component-with-scoped-slot', {
           item: (props: ScopedSlotProps) => [h('span', [props.msg])]
         }
       }),
+      h('child', [
+        // return single VNode (will be normalized to an array)
+        (props: ScopedSlotProps) => h('span', [props.msg])
+      ]),
       h('child', {
         // Passing down all slots from parent
         scopedSlots: this.$scopedSlots
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index d296ee2e396..62afcfeb7b9 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -1,7 +1,11 @@
 import { Vue } from "./vue";
 
+export type ScopedSlot = (props: any) => ScopedSlotReturnValue;
+type ScopedSlotReturnValue = VNode | string | boolean | null | undefined | ScopedSlotReturnArray;
+interface ScopedSlotReturnArray extends Array<ScopedSlotReturnValue> {}
+
 // Scoped slots are guaranteed to return Array of VNodes starting in 2.6
-export type ScopedSlot = (props: any) => ScopedSlotChildren;
+export type NormalizedScopedSlot = (props: any) => ScopedSlotChildren;
 export type ScopedSlotChildren = VNode[] | undefined;
 
 // Relaxed type compatible with $createElement
diff --git a/types/vue.d.ts b/types/vue.d.ts
index 7391bbbd321..be2477b3f27 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -12,7 +12,7 @@ import {
   ThisTypedComponentOptionsWithRecordProps,
   WatchOptions,
 } from "./options";
-import { VNode, VNodeData, VNodeChildren, ScopedSlot } from "./vnode";
+import { VNode, VNodeData, VNodeChildren, ScopedSlot, NormalizedScopedSlot } from "./vnode";
 import { PluginFunction, PluginObject } from "./plugin";
 
 export interface CreateElement {
@@ -28,7 +28,7 @@ export interface Vue {
   readonly $children: Vue[];
   readonly $refs: { [key: string]: Vue | Element | Vue[] | Element[] };
   readonly $slots: { [key: string]: VNode[] | undefined };
-  readonly $scopedSlots: { [key: string]: ScopedSlot | undefined };
+  readonly $scopedSlots: { [key: string]: NormalizedScopedSlot | undefined };
   readonly $isServer: boolean;
   readonly $data: Record<string, any>;
   readonly $props: Record<string, any>;

From ed341137b23315b76ba391db1b0e537950c091e1 Mon Sep 17 00:00:00 2001
From: Markus Oberlehner <maoberlehner@users.noreply.github.com>
Date: Thu, 28 Feb 2019 23:37:44 +0100
Subject: [PATCH 838/911] fix: handle async component when parent is toggled
 before resolve (#9572)

fix #9571
---
 .../vdom/helpers/resolve-async-component.js     | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 5714b4ead00..43279b708ce 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -8,7 +8,8 @@ import {
   isTrue,
   isObject,
   hasSymbol,
-  isPromise
+  isPromise,
+  remove
 } from 'core/util/index'
 
 import { createEmptyVNode } from 'core/vdom/vnode'
@@ -51,17 +52,21 @@ export function resolveAsyncComponent (
     return factory.resolved
   }
 
+  const owner = currentRenderingInstance
+  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    // already pending
+    factory.owners.push(owner)
+  }
+
   if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
     return factory.loadingComp
   }
 
-  const owner = currentRenderingInstance
-  if (isDef(factory.owners)) {
-    // already pending
-    factory.owners.push(owner)
-  } else {
+  if (!isDef(factory.owners)) {
     const owners = factory.owners = [owner]
     let sync = true
+ 
+    if (owner) owner.$on('hook:destroyed', () => remove(owners, owner))
 
     const forceRender = (renderCompleted: boolean) => {
       for (let i = 0, l = owners.length; i < l; i++) {

From 03c13de38e883636917800a283ebcb338bbfbdc3 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 28 Feb 2019 17:39:10 -0500
Subject: [PATCH 839/911] refactor: remove unncessary condition

---
 src/core/vdom/helpers/resolve-async-component.js | 4 ++--
 test/unit/modules/vdom/create-component.spec.js  | 6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 43279b708ce..fa76090553c 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -65,8 +65,8 @@ export function resolveAsyncComponent (
   if (!isDef(factory.owners)) {
     const owners = factory.owners = [owner]
     let sync = true
- 
-    if (owner) owner.$on('hook:destroyed', () => remove(owners, owner))
+
+    ;(owner: any).$on('hook:destroyed', () => remove(owners, owner))
 
     const forceRender = (renderCompleted: boolean) => {
       for (let i = 0, l = owners.length; i < l; i++) {
diff --git a/test/unit/modules/vdom/create-component.spec.js b/test/unit/modules/vdom/create-component.spec.js
index 9ca34f68280..37f8226545b 100644
--- a/test/unit/modules/vdom/create-component.spec.js
+++ b/test/unit/modules/vdom/create-component.spec.js
@@ -93,7 +93,9 @@ describe('create-component', () => {
         props: ['msg']
       })
     }
+    setCurrentRenderingInstance(vm)
     const vnode = createComponent(async, data, vm, vm)
+    setCurrentRenderingInstance(null)
     expect(vnode.asyncFactory).toBe(async)
     expect(vnode.asyncFactory.owners.length).toEqual(0)
     expect(vnode.tag).toMatch(/vue-component-[0-9]+-child/)
@@ -121,11 +123,15 @@ describe('create-component', () => {
       }, 0)
     }
     function go () {
+      setCurrentRenderingInstance(vm)
       vnode = createComponent(async, data, vm, vm)
+      setCurrentRenderingInstance(null)
       expect(vnode.isComment).toBe(true) // not to be loaded yet.
     }
     function failed () {
+      setCurrentRenderingInstance(vm)
       vnode = createComponent(async, data, vm, vm)
+      setCurrentRenderingInstance(null)
       expect(vnode.isComment).toBe(true) // failed, still a comment node
       expect(`Failed to resolve async component: ${async}\nReason: ${reason}`).toHaveBeenWarned()
       done()

From 571a4880fc06b491a280325b79fd4cbb59ceb47e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 28 Feb 2019 17:46:28 -0500
Subject: [PATCH 840/911] fix: further adjust max stack size

close #9562
---
 src/server/write.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/server/write.js b/src/server/write.js
index 9d81d2a8e04..27a5e8a2667 100644
--- a/src/server/write.js
+++ b/src/server/write.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-const MAX_STACK_DEPTH = 900
+const MAX_STACK_DEPTH = 800
 const noop = _ => _
 
 const defer = typeof process !== 'undefined' && process.nextTick

From 38825ff6754d61a350d8892462cecaa3eceb93c6 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 28 Feb 2019 17:52:20 -0500
Subject: [PATCH 841/911] test: add a test case for ssr max stack size limit

---
 test/ssr/ssr-string.spec.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 66acf008a00..19bc4005419 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -1541,6 +1541,24 @@ describe('SSR: renderToString', () => {
       done()
     })
   })
+
+  it('handling max stack size limit', done => {
+    const vueInstance = new Vue({
+      template: `<div class="root">
+        <child v-for="(x, i) in items" :key="i"></child>
+      </div>`,
+      components: {
+        child: {
+          template: '<div class="child"><span class="child">hi</span></div>'
+        }
+      },
+      data: {
+        items: Array(1000).fill(0)
+      }
+    })
+
+    renderToString(vueInstance, err => done(err))
+  })
 })
 
 function renderVmWithOptions (options, cb) {

From 1574ade607499bf4e3cf270c69249893e29eb259 Mon Sep 17 00:00:00 2001
From: Luxiaosong <2878354193@qq.com>
Date: Fri, 1 Mar 2019 06:54:51 +0800
Subject: [PATCH 842/911] test: Add a unit test for "$off event and this event
 added by $once" (#9550)

---
 test/unit/features/instance/methods-events.spec.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/unit/features/instance/methods-events.spec.js b/test/unit/features/instance/methods-events.spec.js
index 5cf43986185..47d15bd6a5c 100644
--- a/test/unit/features/instance/methods-events.spec.js
+++ b/test/unit/features/instance/methods-events.spec.js
@@ -56,6 +56,13 @@ describe('Instance methods events', () => {
     expect(spy).toHaveBeenCalledWith(1, 2, 3)
   })
 
+  it('$off event added by $once', () => {
+    vm.$once('test', spy)
+    vm.$off('test', spy) // test off event and this event added by once
+    vm.$emit('test', 1, 2, 3)
+    expect(spy).not.toHaveBeenCalled()
+  })
+
   it('$off', () => {
     vm.$on('test1', spy)
     vm.$on('test2', spy)

From cbad54aa52847cfc934bb925d53c53ee57fc153d Mon Sep 17 00:00:00 2001
From: Jason <jason.daurus@gmail.com>
Date: Fri, 1 Mar 2019 22:56:13 +0800
Subject: [PATCH 843/911] fix(compiler): set end location for incomplete
 elements (#9598)

---
 src/compiler/parser/html-parser.js                  | 2 +-
 src/compiler/parser/index.js                        | 3 ++-
 test/unit/modules/compiler/compiler-options.spec.js | 5 +++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index b574e9c40ed..f93c098fa5a 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -279,7 +279,7 @@ export function parseHTML (html, options) {
         ) {
           options.warn(
             `tag <${stack[i].tag}> has no matching end tag.`,
-            { start: stack[i].start }
+            { start: stack[i].start, end: stack[i].end }
           )
         }
         if (options.end) {
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 01cbadd1ded..0689eb873dd 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -210,7 +210,7 @@ export function parse (
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     outputSourceRange: options.outputSourceRange,
-    start (tag, attrs, unary, start) {
+    start (tag, attrs, unary, start, end) {
       // check namespace.
       // inherit parent ns if there is one
       const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag)
@@ -229,6 +229,7 @@ export function parse (
       if (process.env.NODE_ENV !== 'production') {
         if (options.outputSourceRange) {
           element.start = start
+          element.end = end
           element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
             cumulated[attr.name] = attr
             return cumulated
diff --git a/test/unit/modules/compiler/compiler-options.spec.js b/test/unit/modules/compiler/compiler-options.spec.js
index 4b17545bd5b..a0cfcdde5ca 100644
--- a/test/unit/modules/compiler/compiler-options.spec.js
+++ b/test/unit/modules/compiler/compiler-options.spec.js
@@ -140,6 +140,11 @@ describe('compile options', () => {
     expect(compiled.errors[0].end).toBe(17)
     expect(compiled.errors[1].start).toBe(18)
     expect(compiled.errors[1].end).toBe(29)
+
+    compiled = compile('<div><span></div>', { outputSourceRange: true })
+    expect(compiled.errors.length).toBe(1)
+    expect(compiled.errors[0].start).toBe(5)
+    expect(compiled.errors[0].end).toBe(11)
   })
 
   it('should collect source range for binding keys', () => {

From 372d71cbfe717186e12d1fffc1cb3fe570dd943c Mon Sep 17 00:00:00 2001
From: ULIVZ <472590061@qq.com>
Date: Fri, 1 Mar 2019 23:00:01 +0800
Subject: [PATCH 844/911] docs: clarify docs about using template compiler
 (#9508)

This commit is for https://github.com/vuejs/vue-loader/issues/1494
---
 packages/vue-template-compiler/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index afdb482e0eb..9861bbdf992 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -2,7 +2,7 @@
 
 > This package is auto-generated. For pull requests please see [src/platforms/web/entry-compiler.js](https://github.com/vuejs/vue/tree/dev/src/platforms/web/entry-compiler.js).
 
-This package can be used to pre-compile Vue 2.0 templates into render functions to avoid runtime-compilation overhead and CSP restrictions. You will only need it if you are writing build tools with very specific needs. In most cases you should be using [`vue-loader`](https://github.com/vuejs/vue-loader) or [`vueify`](https://github.com/vuejs/vueify) instead, both of which use this package internally.
+This package can be used to pre-compile Vue 2.0 templates into render functions to avoid runtime-compilation overhead and CSP restrictions. In most cases you should be using it with [`vue-loader`](https://github.com/vuejs/vue-loader), you will only need it separately if you are writing build tools with very specific needs.
 
 ## Installation
 

From 869a8197efa78164c1e8d4faa181ede9fdb0f7b2 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Mar 2019 10:03:33 -0500
Subject: [PATCH 845/911] build: build 2.6.8

---
 dist/vue.common.dev.js                      | 37 ++++++++++++---------
 dist/vue.common.prod.js                     |  4 +--
 dist/vue.esm.browser.js                     | 37 ++++++++++++---------
 dist/vue.esm.browser.min.js                 |  4 +--
 dist/vue.esm.js                             | 37 ++++++++++++---------
 dist/vue.js                                 | 37 ++++++++++++---------
 dist/vue.min.js                             |  4 +--
 dist/vue.runtime.common.dev.js              | 26 +++++++++------
 dist/vue.runtime.common.prod.js             |  4 +--
 dist/vue.runtime.esm.js                     | 26 +++++++++------
 dist/vue.runtime.js                         | 26 +++++++++------
 dist/vue.runtime.min.js                     |  4 +--
 packages/vue-server-renderer/basic.js       | 33 ++++++++++--------
 packages/vue-server-renderer/build.dev.js   | 33 ++++++++++--------
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   | 13 ++++----
 packages/vue-template-compiler/build.js     | 13 ++++----
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 194 insertions(+), 150 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index a763aaed7d6..8263f8ca891 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -477,7 +477,7 @@ var config = ({
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
 /**
  * Check if a string starts with $ or _
@@ -502,7 +502,7 @@ function def (obj, key, val, enumerable) {
 /**
  * Parse simple path.
  */
-var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
 function parsePath (path) {
   if (bailRE.test(path)) {
     return
@@ -1406,7 +1406,7 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
       'should conform to valid custom element name in html5 specification.'
@@ -3610,17 +3610,21 @@ function resolveAsyncComponent (
     return factory.resolved
   }
 
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    // already pending
+    factory.owners.push(owner);
+  }
+
   if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
     return factory.loadingComp
   }
 
-  var owner = currentRenderingInstance;
-  if (isDef(factory.owners)) {
-    // already pending
-    factory.owners.push(owner);
-  } else {
+  if (!isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true;
+    var sync = true
+
+    ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
     var forceRender = function (renderCompleted) {
       for (var i = 0, l = owners.length; i < l; i++) {
@@ -5400,7 +5404,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.7';
+Vue.version = '2.6.8';
 
 /*  */
 
@@ -9202,7 +9206,7 @@ var isNonPhrasingTag = makeMap(
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
@@ -9464,7 +9468,7 @@ function parseHTML (html, options) {
         ) {
           options.warn(
             ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-            { start: stack[i].start }
+            { start: stack[i].start, end: stack[i].end }
           );
         }
         if (options.end) {
@@ -9501,7 +9505,7 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
+var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
 
@@ -9678,7 +9682,7 @@ function parse (
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     outputSourceRange: options.outputSourceRange,
-    start: function start (tag, attrs, unary, start$1) {
+    start: function start (tag, attrs, unary, start$1, end) {
       // check namespace.
       // inherit parent ns if there is one
       var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -9697,6 +9701,7 @@ function parse (
       {
         if (options.outputSourceRange) {
           element.start = start$1;
+          element.end = end;
           element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
             cumulated[attr.name] = attr;
             return cumulated
@@ -11181,7 +11186,7 @@ function genScopedSlots (
   // components with only scoped slots to skip forced updates from parent.
   // but in some cases we have to bail-out of this optimization
   // for example if the slot contains dynamic names, has v-if or v-for on them...
-  var needsForceUpdate = Object.keys(slots).some(function (key) {
+  var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return (
       slot.slotTargetDynamic ||
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index caf2f11f23a..bf43113ba16 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function l(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function u(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(n){return t[n]||(t[n]=e(n))}}var _=/-(\w)/g,b=g(function(e){return e.replace(_,function(e,t){return t?t.toUpperCase():""})}),$=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),w=/\B([A-Z])/g,C=g(function(e){return e.replace(w,"-$1").toLowerCase()});var x=Function.prototype.bind?function(e,t){return e.bind(t)}:function(e,t){function n(n){var r=arguments.length;return r?r>1?e.apply(t,arguments):e.call(t,n):e.call(t)}return n._length=e.length,n};function A(e,t){t=t||0;for(var n=e.length-t,r=new Array(n);n--;)r[n]=e[n+t];return r}function k(e,t){for(var n in t)e[n]=t[n];return e}function O(e){for(var t={},n=0;n<e.length;n++)e[n]&&k(t,e[n]);return t}function S(e,t,n){}var T=function(e,t,n){return!1},E=function(e){return e};function N(e,t){if(e===t)return!0;var n=o(e),r=o(t);if(!n||!r)return!n&&!r&&String(e)===String(t);try{var 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M="data-server-rendered",I=["component","directive","filter"],D=["beforeCreate","created","beforeMount","mounted","beforeUpdate","updated","beforeDestroy","destroyed","activated","deactivated","errorCaptured","serverPrefetch"],P={optionMergeStrategies:Object.create(null),silent:!1,productionTip:!1,devtools:!1,performance:!1,errorHandler:null,warnHandler:null,ignoredElements:[],keyCodes:Object.create(null),isReservedTag:T,isReservedAttr:T,isUnknownElement:T,getTagNamespace:S,parsePlatformTagName:E,mustUseProp:T,async:!0,_lifecycleHooks:D};function R(e,t,n,r){Object.defineProperty(e,t,{value:n,enumerable:!!r,writable:!0,configurable:!0})}var F=new RegExp("[^a-zA-Z\xb7\xc0-\xd6\xd8-\xf6\xf8-\u037d\u037f-\u1fff\u200c-\u200d\u203f-\u2040\u2070-\u218f\u2c00-\u2fef\u3001-\ud7ff\uf900-\ufdcf\ufdf0-\ufffd.$_\\d]");var H,B="__proto__"in{},U="undefined"!=typeof window,z="undefined"!=typeof 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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 74538f9f924..2c986ba764c 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -475,7 +475,7 @@ var config = ({
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-const unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+const unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
 /**
  * Check if a string starts with $ or _
@@ -500,7 +500,7 @@ function def (obj, key, val, enumerable) {
 /**
  * Parse simple path.
  */
-const bailRE = new RegExp(`[^${unicodeLetters}.$_\\d]`);
+const bailRE = new RegExp(`[^${unicodeRegExp.source}.$_\\d]`);
 function parsePath (path) {
   if (bailRE.test(path)) {
     return
@@ -1440,7 +1440,7 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeLetters}]*$`).test(name)) {
+  if (!new RegExp(`^[a-zA-Z][\\-\\.0-9_${unicodeRegExp.source}]*$`).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
       'should conform to valid custom element name in html5 specification.'
@@ -3631,17 +3631,21 @@ function resolveAsyncComponent (
     return factory.resolved
   }
 
+  const owner = currentRenderingInstance;
+  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    // already pending
+    factory.owners.push(owner);
+  }
+
   if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
     return factory.loadingComp
   }
 
-  const owner = currentRenderingInstance;
-  if (isDef(factory.owners)) {
-    // already pending
-    factory.owners.push(owner);
-  } else {
+  if (!isDef(factory.owners)) {
     const owners = factory.owners = [owner];
-    let sync = true;
+    let sync = true
+
+    ;(owner).$on('hook:destroyed', () => remove(owners, owner));
 
     const forceRender = (renderCompleted) => {
       for (let i = 0, l = owners.length; i < l; i++) {
@@ -5431,7 +5435,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.7';
+Vue.version = '2.6.8';
 
 /*  */
 
@@ -9219,7 +9223,7 @@ const isNonPhrasingTag = makeMap(
 // Regular Expressions for parsing tags and attributes
 const attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 const dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeLetters}]*`;
+const ncname = `[a-zA-Z_][\\-\\.0-9_a-zA-Z${unicodeRegExp.source}]*`;
 const qnameCapture = `((?:${ncname}\\:)?${ncname})`;
 const startTagOpen = new RegExp(`^<${qnameCapture}`);
 const startTagClose = /^\s*(\/?)>/;
@@ -9481,7 +9485,7 @@ function parseHTML (html, options) {
         ) {
           options.warn(
             `tag <${stack[i].tag}> has no matching end tag.`,
-            { start: stack[i].start }
+            { start: stack[i].start, end: stack[i].end }
           );
         }
         if (options.end) {
@@ -9518,7 +9522,7 @@ const dynamicArgRE = /^\[.*\]$/;
 
 const argRE = /:(.*)$/;
 const bindRE = /^:|^\.|^v-bind:/;
-const modifierRE = /\.[^.]+/g;
+const modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
 const slotRE = /^v-slot(:|$)|^#/;
 
@@ -9695,7 +9699,7 @@ function parse (
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     outputSourceRange: options.outputSourceRange,
-    start (tag, attrs, unary, start) {
+    start (tag, attrs, unary, start, end) {
       // check namespace.
       // inherit parent ns if there is one
       const ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -9714,6 +9718,7 @@ function parse (
       {
         if (options.outputSourceRange) {
           element.start = start;
+          element.end = end;
           element.rawAttrsMap = element.attrsList.reduce((cumulated, attr) => {
             cumulated[attr.name] = attr;
             return cumulated
@@ -11240,7 +11245,7 @@ function genScopedSlots (
   // components with only scoped slots to skip forced updates from parent.
   // but in some cases we have to bail-out of this optimization
   // for example if the slot contains dynamic names, has v-if or v-for on them...
-  let needsForceUpdate = Object.keys(slots).some(key => {
+  let needsForceUpdate = el.for || Object.keys(slots).some(key => {
     const slot = slots[key];
     return (
       slot.slotTargetDynamic ||
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 57c46ed56f0..6cd0a17710b 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const 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n=Ci[t],o=xi[t];return"_k($event.keyCode,"+`${JSON.stringify(t)},`+`${JSON.stringify(n)},`+"$event.key,"+`${JSON.stringify(o)}`+")"}var Ei={on:function(t,e){t.wrapListeners=(t=>`_g(${t},${e.value})`)},bind:function(t,e){t.wrapData=(n=>`_b(${n},'${t.tag}',${e.value},${e.modifiers&&e.modifiers.prop?"true":"false"}${e.modifiers&&e.modifiers.sync?",true":""})`)},cloak:S};class Ni{constructor(t){this.options=t,this.warn=t.warn||go,this.transforms=vo(t.modules,"transformCode"),this.dataGenFns=vo(t.modules,"genData"),this.directives=A(A({},Ei),t.directives);const e=t.isReservedTag||T;this.maybeComponent=(t=>!!t.component||!e(t.tag)),this.onceId=0,this.staticRenderFns=[],this.pre=!1}}function ji(t,e){const n=new Ni(e);return{render:`with(this){return ${t?Di(t,n):'_c("div")'}}`,staticRenderFns:n.staticRenderFns}}function Di(t,e){if(t.parent&&(t.pre=t.pre||t.parent.pre),t.staticRoot&&!t.staticProcessed)return Li(t,e);if(t.once&&!t.onceProcessed)return Mi(t,e);if(t.for&&!t.forProcessed)return Fi(t,e);if(t.if&&!t.ifProcessed)return Ii(t,e);if("template"!==t.tag||t.slotTarget||e.pre){if("slot"===t.tag)return function(t,e){const n=t.slotName||'"default"',o=Bi(t,e);let r=`_t(${n}${o?`,${o}`:""}`;const s=t.attrs||t.dynamicAttrs?Vi((t.attrs||[]).concat(t.dynamicAttrs||[]).map(t=>({name:_(t.name),value:t.value,dynamic:t.dynamic}))):null,i=t.attrsMap["v-bind"];!s&&!i||o||(r+=",null");s&&(r+=`,${s}`);i&&(r+=`${s?"":",null"},${i}`);return r+")"}(t,e);{let n;if(t.component)n=function(t,e,n){const o=e.inlineTemplate?null:Bi(e,n,!0);return`_c(${t},${Pi(e,n)}${o?`,${o}`:""})`}(t.component,t,e);else{let o;(!t.plain||t.pre&&e.maybeComponent(t))&&(o=Pi(t,e));const r=t.inlineTemplate?null:Bi(t,e,!0);n=`_c('${t.tag}'${o?`,${o}`:""}${r?`,${r}`:""})`}for(let o=0;o<e.transforms.length;o++)n=e.transforms[o](t,n);return n}}return Bi(t,e)||"void 0"}function Li(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${Di(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Mi(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ii(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${Di(t,e)},${e.onceId++},${n})`:Di(t,e)}return Li(t,e)}function Ii(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Mi(t,n):Di(t,n)}}(t.ifConditions.slice(),e,n,o)}function Fi(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||Di)(t,e)}`+"})"}function Pi(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Vi(t.attrs)},`),t.props&&(n+=`domProps:${Vi(t.props)},`),t.events&&(n+=`${Oi(t.events,!1)},`),t.nativeEvents&&(n+=`${Oi(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e,n){let o=t.for||Object.keys(e).some(t=>{const n=e[t];return n.slotTargetDynamic||n.if||n.for||Ri(n)}),r=!!t.if;if(!o){let e=t.parent;for(;e;){if(e.slotScope&&e.slotScope!==Ws||e.for){o=!0;break}e.if&&(r=!0),e=e.parent}}const s=Object.keys(e).map(t=>Hi(e[t],n)).join(",");return`scopedSlots:_u([${s}]${o?",null,true":""}${!o&&r?`,null,false,${function(t){let e=5381,n=t.length;for(;n;)e=33*e^t.charCodeAt(--n);return e>>>0}(s)}`:""})`}(t,t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(n&&1===n.type){const t=ji(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Vi(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Ri(t){return 1===t.type&&("slot"===t.tag||t.children.some(Ri))}function Hi(t,e){const n=t.attrsMap["slot-scope"];if(t.if&&!t.ifProcessed&&!n)return Ii(t,e,Hi,"null");if(t.for&&!t.forProcessed)return Fi(t,e,Hi);const o=t.slotScope===Ws?"":String(t.slotScope),r=`function(${o}){`+`return ${"template"===t.tag?t.if&&n?`(${t.if})?${Bi(t,e)||"undefined"}:undefined`:Bi(t,e)||"undefined":Di(t,e)}}`,s=o?"":",proxy:true";return`{key:${t.slotTarget||'"default"'},fn:${r}${s}}`}function Bi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||Di)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Ui(r)||r.ifConditions&&r.ifConditions.some(t=>Ui(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||zi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Ui(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function zi(t,e){return 1===t.type?Di(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Ki(JSON.stringify(n.text))})`;var n,o}function Vi(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Ki(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Ki(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Ji(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function qi(t){const e=Object.create(null);return function(n,o,r){(o=A({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Ji(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Ji(t,c)),e[s]=a}}const Wi=(Zi=function(t,e){const n=ri(t.trim(),e);!1!==e.optimize&&$i(n,e);const o=ji(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=A(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=Zi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:qi(e)}});var Zi;const{compile:Gi,compileToFunctions:Xi}=Wi(mi);let Yi;function Qi(t){return(Yi=Yi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Yi.innerHTML.indexOf("&#10;")>0}const ta=!!z&&Qi(!1),ea=!!z&&Qi(!0),na=v(t=>{const e=Jn(t);return e&&e.innerHTML}),oa=yn.prototype.$mount;yn.prototype.$mount=function(t,e){if((t=t&&Jn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=na(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Xi(e,{outputSourceRange:!1,shouldDecodeNewlines:ta,shouldDecodeNewlinesForHref:ea,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return oa.call(this,t,e)},yn.compile=Xi;export default yn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 2269a450e63..ba40c3de1e8 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -475,7 +475,7 @@ var config = ({
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
 /**
  * Check if a string starts with $ or _
@@ -500,7 +500,7 @@ function def (obj, key, val, enumerable) {
 /**
  * Parse simple path.
  */
-var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
 function parsePath (path) {
   if (bailRE.test(path)) {
     return
@@ -1406,7 +1406,7 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
       'should conform to valid custom element name in html5 specification.'
@@ -3620,17 +3620,21 @@ function resolveAsyncComponent (
     return factory.resolved
   }
 
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    // already pending
+    factory.owners.push(owner);
+  }
+
   if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
     return factory.loadingComp
   }
 
-  var owner = currentRenderingInstance;
-  if (isDef(factory.owners)) {
-    // already pending
-    factory.owners.push(owner);
-  } else {
+  if (!isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true;
+    var sync = true
+
+    ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
     var forceRender = function (renderCompleted) {
       for (var i = 0, l = owners.length; i < l; i++) {
@@ -5420,7 +5424,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.7';
+Vue.version = '2.6.8';
 
 /*  */
 
@@ -9230,7 +9234,7 @@ var isNonPhrasingTag = makeMap(
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
@@ -9493,7 +9497,7 @@ function parseHTML (html, options) {
         ) {
           options.warn(
             ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-            { start: stack[i].start }
+            { start: stack[i].start, end: stack[i].end }
           );
         }
         if (options.end) {
@@ -9530,7 +9534,7 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
+var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
 
@@ -9707,7 +9711,7 @@ function parse (
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     outputSourceRange: options.outputSourceRange,
-    start: function start (tag, attrs, unary, start$1) {
+    start: function start (tag, attrs, unary, start$1, end) {
       // check namespace.
       // inherit parent ns if there is one
       var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -9726,6 +9730,7 @@ function parse (
       if (process.env.NODE_ENV !== 'production') {
         if (options.outputSourceRange) {
           element.start = start$1;
+          element.end = end;
           element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
             cumulated[attr.name] = attr;
             return cumulated
@@ -11215,7 +11220,7 @@ function genScopedSlots (
   // components with only scoped slots to skip forced updates from parent.
   // but in some cases we have to bail-out of this optimization
   // for example if the slot contains dynamic names, has v-if or v-for on them...
-  var needsForceUpdate = Object.keys(slots).some(function (key) {
+  var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return (
       slot.slotTargetDynamic ||
diff --git a/dist/vue.js b/dist/vue.js
index 838cf9209c0..75140b11904 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -481,7 +481,7 @@
    * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
    * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
    */
-  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+  var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
   /**
    * Check if a string starts with $ or _
@@ -506,7 +506,7 @@
   /**
    * Parse simple path.
    */
-  var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+  var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
   function parsePath (path) {
     if (bailRE.test(path)) {
       return
@@ -1410,7 +1410,7 @@
   }
 
   function validateComponentName (name) {
-    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
       warn(
         'Invalid component name: "' + name + '". Component names ' +
         'should conform to valid custom element name in html5 specification.'
@@ -3614,17 +3614,21 @@
       return factory.resolved
     }
 
+    var owner = currentRenderingInstance;
+    if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+      // already pending
+      factory.owners.push(owner);
+    }
+
     if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
       return factory.loadingComp
     }
 
-    var owner = currentRenderingInstance;
-    if (isDef(factory.owners)) {
-      // already pending
-      factory.owners.push(owner);
-    } else {
+    if (!isDef(factory.owners)) {
       var owners = factory.owners = [owner];
-      var sync = true;
+      var sync = true
+
+      ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
       var forceRender = function (renderCompleted) {
         for (var i = 0, l = owners.length; i < l; i++) {
@@ -5404,7 +5408,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.7';
+  Vue.version = '2.6.8';
 
   /*  */
 
@@ -9206,7 +9210,7 @@
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
   var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
   var startTagClose = /^\s*(\/?)>/;
@@ -9468,7 +9472,7 @@
           ) {
             options.warn(
               ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-              { start: stack[i].start }
+              { start: stack[i].start, end: stack[i].end }
             );
           }
           if (options.end) {
@@ -9505,7 +9509,7 @@
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
-  var modifierRE = /\.[^.]+/g;
+  var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
   var slotRE = /^v-slot(:|$)|^#/;
 
@@ -9682,7 +9686,7 @@
       shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
       shouldKeepComment: options.comments,
       outputSourceRange: options.outputSourceRange,
-      start: function start (tag, attrs, unary, start$1) {
+      start: function start (tag, attrs, unary, start$1, end) {
         // check namespace.
         // inherit parent ns if there is one
         var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -9701,6 +9705,7 @@
         {
           if (options.outputSourceRange) {
             element.start = start$1;
+            element.end = end;
             element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
               cumulated[attr.name] = attr;
               return cumulated
@@ -11185,7 +11190,7 @@
     // components with only scoped slots to skip forced updates from parent.
     // but in some cases we have to bail-out of this optimization
     // for example if the slot contains dynamic names, has v-if or v-for on them...
-    var needsForceUpdate = Object.keys(slots).some(function (key) {
+    var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
       var slot = slots[key];
       return (
         slot.slotTargetDynamic ||
diff --git a/dist/vue.min.js b/dist/vue.min.js
index dec89d0c23c..e56972bd3a5 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index ef3eb980f46..dc85bd7706e 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -468,7 +468,7 @@ var config = ({
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
 /**
  * Check if a string starts with $ or _
@@ -493,7 +493,7 @@ function def (obj, key, val, enumerable) {
 /**
  * Parse simple path.
  */
-var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
 function parsePath (path) {
   if (bailRE.test(path)) {
     return
@@ -1397,7 +1397,7 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
       'should conform to valid custom element name in html5 specification.'
@@ -3601,17 +3601,21 @@ function resolveAsyncComponent (
     return factory.resolved
   }
 
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    // already pending
+    factory.owners.push(owner);
+  }
+
   if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
     return factory.loadingComp
   }
 
-  var owner = currentRenderingInstance;
-  if (isDef(factory.owners)) {
-    // already pending
-    factory.owners.push(owner);
-  } else {
+  if (!isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true;
+    var sync = true
+
+    ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
     var forceRender = function (renderCompleted) {
       for (var i = 0, l = owners.length; i < l; i++) {
@@ -5391,7 +5395,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.7';
+Vue.version = '2.6.8';
 
 /*  */
 
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index aae1bb95832..92cae064585 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var 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lo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){lo.componentUpdated(t,e,n)}):fo(t,e,n.context),t._vOptions=[].map.call(t.options,ho)):("textarea"===n.tag||qn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",mo),t.addEventListener("compositionend",yo),t.addEventListener("change",yo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){fo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,ho);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return vo(t,o)}):e.value!==e.oldValue&&vo(e.value,o))&&go(t,"change")}}};function fo(t,e,n){po(t,e,n),(W||K)&&setTimeout(function(){po(t,e,n)},0)}function po(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=T(r,ho(a))>-1,a.selected!==i&&(a.selected=i);else if(j(ho(a),r))return 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t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=$o(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=wo(this),u=this._vnode,l=$o(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var 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diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 0a9f0affbeb..f5acbc1c952 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -466,7 +466,7 @@ var config = ({
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
 /**
  * Check if a string starts with $ or _
@@ -491,7 +491,7 @@ function def (obj, key, val, enumerable) {
 /**
  * Parse simple path.
  */
-var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
 function parsePath (path) {
   if (bailRE.test(path)) {
     return
@@ -1397,7 +1397,7 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
       'should conform to valid custom element name in html5 specification.'
@@ -3611,17 +3611,21 @@ function resolveAsyncComponent (
     return factory.resolved
   }
 
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    // already pending
+    factory.owners.push(owner);
+  }
+
   if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
     return factory.loadingComp
   }
 
-  var owner = currentRenderingInstance;
-  if (isDef(factory.owners)) {
-    // already pending
-    factory.owners.push(owner);
-  } else {
+  if (!isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true;
+    var sync = true
+
+    ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
     var forceRender = function (renderCompleted) {
       for (var i = 0, l = owners.length; i < l; i++) {
@@ -5411,7 +5415,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.7';
+Vue.version = '2.6.8';
 
 /*  */
 
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index 7a96c8366cf..d02f0da1946 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -472,7 +472,7 @@
    * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
    * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
    */
-  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+  var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
   /**
    * Check if a string starts with $ or _
@@ -497,7 +497,7 @@
   /**
    * Parse simple path.
    */
-  var bailRE = new RegExp(("[^" + unicodeLetters + ".$_\\d]"));
+  var bailRE = new RegExp(("[^" + (unicodeRegExp.source) + ".$_\\d]"));
   function parsePath (path) {
     if (bailRE.test(path)) {
       return
@@ -1401,7 +1401,7 @@
   }
 
   function validateComponentName (name) {
-    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
       warn(
         'Invalid component name: "' + name + '". Component names ' +
         'should conform to valid custom element name in html5 specification.'
@@ -3605,17 +3605,21 @@
       return factory.resolved
     }
 
+    var owner = currentRenderingInstance;
+    if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+      // already pending
+      factory.owners.push(owner);
+    }
+
     if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
       return factory.loadingComp
     }
 
-    var owner = currentRenderingInstance;
-    if (isDef(factory.owners)) {
-      // already pending
-      factory.owners.push(owner);
-    } else {
+    if (!isDef(factory.owners)) {
       var owners = factory.owners = [owner];
-      var sync = true;
+      var sync = true
+
+      ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
       var forceRender = function (renderCompleted) {
         for (var i = 0, l = owners.length; i < l; i++) {
@@ -5395,7 +5399,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.7';
+  Vue.version = '2.6.8';
 
   /*  */
 
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index ba576489bed..cbc3a13550a 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.7
+ * Vue.js v2.6.8
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(t,e){return h.call(t,e)}function y(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}var g=/-(\w)/g,_=y(function(t){return t.replace(g,function(t,e){return e?e.toUpperCase():""})}),b=y(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),C=/\B([A-Z])/g,$=y(function(t){return t.replace(C,"-$1").toLowerCase()});var w=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function x(t,e){for(var n in e)t[n]=e[n];return t}function O(t){for(var e={},n=0;n<t.length;n++)t[n]&&x(e,t[n]);return e}function k(t,e,n){}var S=function(t,e,n){return!1},j=function(t){return t};function E(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var o=Array.isArray(t),a=Array.isArray(e);if(o&&a)return t.length===e.length&&t.every(function(t,n){return E(t,e[n])});if(t instanceof Date&&e instanceof Date)return t.getTime()===e.getTime();if(o||a)return!1;var s=Object.keys(t),c=Object.keys(e);return s.length===c.length&&s.every(function(n){return E(t[n],e[n])})}catch(t){return!1}}function T(t,e){for(var n=0;n<t.length;n++)if(E(t[n],e))return n;return-1}function I(t){var e=!1;return function(){e||(e=!0,t.apply(this,arguments))}}var 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r=e.value;!r!=!e.oldValue&&((n=_o(n)).data&&n.data.transition?(n.data.show=!0,r?oo(n,function(){t.style.display=t.__vOriginalDisplay}):io(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Co={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function $o(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?$o(He(e.children)):t}function wo(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Ao(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var xo=function(t){return t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=$o(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=wo(this),u=this._vnode,l=$o(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function Eo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function jo(t){t.data.newPos=t.elm.getBoundingClientRect()}function To(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var Io={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=wo(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Eo),t.forEach(jo),t.forEach(To),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return _n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=zn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return Bn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(zn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,Io),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),_n});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 74285437ca3..adfdf7122bd 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -663,7 +663,7 @@
    * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
    * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
    */
-  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+  var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
   /**
    * Define a property.
@@ -1555,7 +1555,7 @@
   }
 
   function validateComponentName (name) {
-    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+    if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
       warn(
         'Invalid component name: "' + name + '". Component names ' +
         'should conform to valid custom element name in html5 specification.'
@@ -2407,7 +2407,7 @@
 
   /*  */
 
-  var MAX_STACK_DEPTH = 900;
+  var MAX_STACK_DEPTH = 800;
   var noop$1 = function (_) { return _; };
 
   var defer = typeof process !== 'undefined' && process.nextTick
@@ -3366,7 +3366,7 @@
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
   var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
   var startTagClose = /^\s*(\/?)>/;
@@ -3628,7 +3628,7 @@
           ) {
             options.warn(
               ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-              { start: stack[i].start }
+              { start: stack[i].start, end: stack[i].end }
             );
           }
           if (options.end) {
@@ -3813,7 +3813,7 @@
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
-  var modifierRE = /\.[^.]+/g;
+  var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
   var slotRE = /^v-slot(:|$)|^#/;
 
@@ -3990,7 +3990,7 @@
       shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
       shouldKeepComment: options.comments,
       outputSourceRange: options.outputSourceRange,
-      start: function start (tag, attrs, unary, start$1) {
+      start: function start (tag, attrs, unary, start$1, end) {
         // check namespace.
         // inherit parent ns if there is one
         var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -4009,6 +4009,7 @@
         {
           if (options.outputSourceRange) {
             element.start = start$1;
+            element.end = end;
             element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
               cumulated[attr.name] = attr;
               return cumulated
@@ -5532,7 +5533,7 @@
     // components with only scoped slots to skip forced updates from parent.
     // but in some cases we have to bail-out of this optimization
     // for example if the slot contains dynamic names, has v-if or v-for on them...
-    var needsForceUpdate = Object.keys(slots).some(function (key) {
+    var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
       var slot = slots[key];
       return (
         slot.slotTargetDynamic ||
@@ -7679,17 +7680,21 @@
       return factory.resolved
     }
 
+    var owner = currentRenderingInstance;
+    if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+      // already pending
+      factory.owners.push(owner);
+    }
+
     if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
       return factory.loadingComp
     }
 
-    var owner = currentRenderingInstance;
-    if (isDef(factory.owners)) {
-      // already pending
-      factory.owners.push(owner);
-    } else {
+    if (!isDef(factory.owners)) {
       var owners = factory.owners = [owner];
-      var sync = true;
+      var sync = true
+
+      ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
       var forceRender = function (renderCompleted) {
         for (var i = 0, l = owners.length; i < l; i++) {
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 49513f839e6..0d8360dee56 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -665,7 +665,7 @@ function setText (node, text, raw) {
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
 /**
  * Define a property.
@@ -1557,7 +1557,7 @@ function checkComponents (options) {
 }
 
 function validateComponentName (name) {
-  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + unicodeLetters + "]*$")).test(name)) {
+  if (!new RegExp(("^[a-zA-Z][\\-\\.0-9_" + (unicodeRegExp.source) + "]*$")).test(name)) {
     warn(
       'Invalid component name: "' + name + '". Component names ' +
       'should conform to valid custom element name in html5 specification.'
@@ -2409,7 +2409,7 @@ var isNonPhrasingTag = makeMap(
 
 /*  */
 
-var MAX_STACK_DEPTH = 900;
+var MAX_STACK_DEPTH = 800;
 var noop$1 = function (_) { return _; };
 
 var defer = typeof process !== 'undefined' && process.nextTick
@@ -3116,7 +3116,7 @@ var style = {
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
@@ -3378,7 +3378,7 @@ function parseHTML (html, options) {
         ) {
           options.warn(
             ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-            { start: stack[i].start }
+            { start: stack[i].start, end: stack[i].end }
           );
         }
         if (options.end) {
@@ -3563,7 +3563,7 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
+var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
 
@@ -3740,7 +3740,7 @@ function parse (
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     outputSourceRange: options.outputSourceRange,
-    start: function start (tag, attrs, unary, start$1) {
+    start: function start (tag, attrs, unary, start$1, end) {
       // check namespace.
       // inherit parent ns if there is one
       var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -3759,6 +3759,7 @@ function parse (
       {
         if (options.outputSourceRange) {
           element.start = start$1;
+          element.end = end;
           element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
             cumulated[attr.name] = attr;
             return cumulated
@@ -5282,7 +5283,7 @@ function genScopedSlots (
   // components with only scoped slots to skip forced updates from parent.
   // but in some cases we have to bail-out of this optimization
   // for example if the slot contains dynamic names, has v-if or v-for on them...
-  var needsForceUpdate = Object.keys(slots).some(function (key) {
+  var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return (
       slot.slotTargetDynamic ||
@@ -7429,17 +7430,21 @@ function resolveAsyncComponent (
     return factory.resolved
   }
 
+  var owner = currentRenderingInstance;
+  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    // already pending
+    factory.owners.push(owner);
+  }
+
   if (isTrue(factory.loading) && isDef(factory.loadingComp)) {
     return factory.loadingComp
   }
 
-  var owner = currentRenderingInstance;
-  if (isDef(factory.owners)) {
-    // already pending
-    factory.owners.push(owner);
-  } else {
+  if (!isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true;
+    var sync = true
+
+    ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
     var forceRender = function (renderCompleted) {
       for (var i = 0, l = owners.length; i < l; i++) {
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 4d4840a8d3c..cfcb2ac222e 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
-"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var e,t=(e=require("he"))&&"object"==typeof e&&"default"in e?e.default:e,r=Object.freeze({});function n(e){return null==e}function i(e){return null!=e}function o(e){return!0===e}function a(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function s(e){return null!==e&&"object"==typeof e}var c=Object.prototype.toString;function u(e){return"[object Object]"===c.call(e)}function l(e){return i(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function f(e){return null==e?"":Array.isArray(e)||u(e)&&e.toString===c?JSON.stringify(e,null,2):String(e)}function p(e){var t=parseFloat(e);return isNaN(t)?e:t}function d(e,t){for(var r=Object.create(null),n=e.split(","),i=0;i<n.length;i++)r[n[i]]=!0;return t?function(e){return r[e.toLowerCase()]}:function(e){return r[e]}}var v=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");var m=Object.prototype.hasOwnProperty;function y(e,t){return m.call(e,t)}function g(e){var t=Object.create(null);return function(r){return t[r]||(t[r]=e(r))}}var b=/-(\w)/g,_=g(function(e){return e.replace(b,function(e,t){return t?t.toUpperCase():""})}),w=g(function(e){return e.charAt(0).toUpperCase()+e.slice(1)}),x=/\B([A-Z])/g,S=g(function(e){return e.replace(x,"-$1").toLowerCase()});Function.prototype.bind;function $(e,t){for(var r in t)e[r]=t[r];return e}function A(e){for(var t={},r=0;r<e.length;r++)e[r]&&$(t,e[r]);return t}function O(e,t,r){}var k=function(e,t,r){return!1},C=function(e){return e};function T(e,t){if(e===t)return!0;var r=s(e),n=s(t);if(!r||!n)return!r&&!n&&String(e)===String(t);try{var i=Array.isArray(e),o=Array.isArray(t);if(i&&o)return e.length===t.length&&e.every(function(e,r){return T(e,t[r])});if(e instanceof Date&&t instanceof Date)return e.getTime()===t.getTime();if(i||o)return!1;var a=Object.keys(e),c=Object.keys(t);return a.length===c.length&&a.every(function(r){return T(e[r],t[r])})}catch(e){return!1}}function j(e,t){for(var r=0;r<e.length;r++)if(T(e[r],t))return r;return-1}function F(e){var t=!1;return function(){t||(t=!0,e.apply(this,arguments))}}var 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o=i._render();o.parent=e,r.renderStates.push({type:"Component",prevActive:n}),Yi(o,t,r)},o)}function io(e,t,r,n){return function(i,o,a,s){Wi=Object.create(null);var c=new _t({activeInstance:i,userContext:a,write:o,done:s,renderNode:Yi,isUnaryTag:r,modules:e,directives:t,cache:n});!function(e){if(!e._ssrNode){for(var t=e.constructor;t.super;)t=t.super;A(t.prototype,ti),t.FunctionalRenderContext&&A(t.FunctionalRenderContext.prototype,ti)}}(i),Gi(i);Qi(i,function(){Yi(i._render(),!0,c)},s)}}var oo=function(e){return/\.js(\?[^.]+)?$/.test(e)};function ao(){var e,t;return{promise:new Promise(function(r,n){e=r,t=n}),cb:function(r,n){if(r)return t(r);e(n||"")}}}var so=function(e){function t(t,r,n){e.call(this),this.started=!1,this.renderer=t,this.template=r,this.context=n||{},this.inject=t.inject}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype._transform=function(e,t,r){this.started||(this.emit("beforeStart"),this.start()),this.push(e),r()},t.prototype.start=function(){if(this.started=!0,this.push(this.template.head(this.context)),this.inject){this.context.head&&this.push(this.context.head);var e=this.renderer.renderResourceHints(this.context);e&&this.push(e);var t=this.renderer.renderStyles(this.context);t&&this.push(t)}this.push(this.template.neck(this.context))},t.prototype._flush=function(e){if(this.emit("beforeEnd"),this.inject){var t=this.renderer.renderState(this.context);t&&this.push(t);var r=this.renderer.renderScripts(this.context);r&&this.push(r)}this.push(this.template.tail(this.context)),e()},t}(require("stream").Transform),co=require("lodash.template"),uo={escape:/{{([^{][\s\S]+?[^}])}}/g,interpolate:/{{{([\s\S]+?)}}}/g};function lo(e){var t=function(e){var t=new Map;return Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.js($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var fo=require("path"),po=require("serialize-javascript"),vo=function(e){this.options=e,this.inject=!1!==e.inject;var t=e.template;if(this.parsedTemplate=t?"string"==typeof t?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:co(e.slice(0,r),uo),neck:co(e.slice(r,n),uo),tail:co(e.slice(n+t.length),uo)}}(t):t:null,this.serialize=e.serializer||function(e){return po(e,{isJSON:!0})},e.clientManifest){var r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(ho),this.prefetchFiles=(r.async||[]).map(ho),this.mapFiles=lo(r)}};function ho(e){var t=e.replace(/\?.*/,""),r=fo.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:mo(r)}}function mo(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}vo.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},vo.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},vo.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},vo.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},vo.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},vo.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},vo.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},vo.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},vo.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return oo(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return oo(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},vo.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(ho)}return e._mappedFiles},vo.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new so(this,this.parsedTemplate,e||{})};var yo=require("vm"),go=require("path"),bo=require("resolve"),_o=require("module");function wo(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function xo(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=_o.wrap(r),o=new yo.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=go.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=bo.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function So(e,t,r,n){var i,o,a=xo(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,wo(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?wo():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var $o=require("source-map").SourceMapConsumer,Ao=/\(([^)]+\.js):(\d+):(\d+)\)$/;function Oo(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(Ao),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(Ao,c)}return e}return e}(e,t)}).join("\n"))}var ko=require("fs"),Co=require("path"),To=require("stream").PassThrough,Fo="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function jo(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=io(t,r,n,a),p=new vo({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=ao()).promise,r=n.cb);var a="",s=gt(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new bt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}(A(A({},e),{isUnaryTag:pt,canBeLeftOpenTag:dt,modules:ct,directives:A(ft,e.directives)}))}process.env.VUE_ENV="server";var Po=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&Co.isAbsolute(t)){if(!ko.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||Co.dirname(t),t=ko.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new $o(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(Fo)}else{if("string"!=typeof t)throw new Error(Fo);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=So(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=ao()).promise,t=r.cb),u(e).catch(function(e){Oo(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){Oo(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new To;return u(e).catch(function(e){Oo(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){Oo(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(jo);exports.createRenderer=jo,exports.createBundleRenderer=Po;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 1975830cdc8..76eaf5d1a01 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.7",
+  "version": "2.6.8",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index 8ca0709a034..ca9b12e10ad 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -283,7 +283,7 @@
    * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
    * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
    */
-  var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+  var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
   /**
    * Define a property.
@@ -304,7 +304,7 @@
   // Regular Expressions for parsing tags and attributes
   var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
   var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+  var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
   var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
   var startTagOpen = new RegExp(("^<" + qnameCapture));
   var startTagClose = /^\s*(\/?)>/;
@@ -566,7 +566,7 @@
           ) {
             options.warn(
               ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-              { start: stack[i].start }
+              { start: stack[i].start, end: stack[i].end }
             );
           }
           if (options.end) {
@@ -2737,7 +2737,7 @@
 
   var argRE = /:(.*)$/;
   var bindRE = /^:|^\.|^v-bind:/;
-  var modifierRE = /\.[^.]+/g;
+  var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
   var slotRE = /^v-slot(:|$)|^#/;
 
@@ -2914,7 +2914,7 @@
       shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
       shouldKeepComment: options.comments,
       outputSourceRange: options.outputSourceRange,
-      start: function start (tag, attrs, unary, start$1) {
+      start: function start (tag, attrs, unary, start$1, end) {
         // check namespace.
         // inherit parent ns if there is one
         var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -2933,6 +2933,7 @@
         {
           if (options.outputSourceRange) {
             element.start = start$1;
+            element.end = end;
             element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
               cumulated[attr.name] = attr;
               return cumulated
@@ -4583,7 +4584,7 @@
     // components with only scoped slots to skip forced updates from parent.
     // but in some cases we have to bail-out of this optimization
     // for example if the slot contains dynamic names, has v-if or v-for on them...
-    var needsForceUpdate = Object.keys(slots).some(function (key) {
+    var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
       var slot = slots[key];
       return (
         slot.slotTargetDynamic ||
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index b8e10425879..c92f2716929 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -240,7 +240,7 @@ var isNonPhrasingTag = makeMap(
  * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname
  * skipping \u10000-\uEFFFF due to it freezing up PhantomJS
  */
-var unicodeLetters = 'a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD';
+var unicodeRegExp = /a-zA-Z\u00B7\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u037D\u037F-\u1FFF\u200C-\u200D\u203F-\u2040\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD/;
 
 /**
  * Define a property.
@@ -261,7 +261,7 @@ function def (obj, key, val, enumerable) {
 // Regular Expressions for parsing tags and attributes
 var attribute = /^\s*([^\s"'<>\/=]+)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
 var dynamicArgAttribute = /^\s*((?:v-[\w-]+:|@|:|#)\[[^=]+\][^\s"'<>\/=]*)(?:\s*(=)\s*(?:"([^"]*)"+|'([^']*)'+|([^\s"'=<>`]+)))?/;
-var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + unicodeLetters + "]*";
+var ncname = "[a-zA-Z_][\\-\\.0-9_a-zA-Z" + (unicodeRegExp.source) + "]*";
 var qnameCapture = "((?:" + ncname + "\\:)?" + ncname + ")";
 var startTagOpen = new RegExp(("^<" + qnameCapture));
 var startTagClose = /^\s*(\/?)>/;
@@ -524,7 +524,7 @@ function parseHTML (html, options) {
         ) {
           options.warn(
             ("tag <" + (stack[i].tag) + "> has no matching end tag."),
-            { start: stack[i].start }
+            { start: stack[i].start, end: stack[i].end }
           );
         }
         if (options.end) {
@@ -2357,7 +2357,7 @@ var dynamicArgRE = /^\[.*\]$/;
 
 var argRE = /:(.*)$/;
 var bindRE = /^:|^\.|^v-bind:/;
-var modifierRE = /\.[^.]+/g;
+var modifierRE = /\.[^.\]]+(?=[^\]]*$)/g;
 
 var slotRE = /^v-slot(:|$)|^#/;
 
@@ -2534,7 +2534,7 @@ function parse (
     shouldDecodeNewlinesForHref: options.shouldDecodeNewlinesForHref,
     shouldKeepComment: options.comments,
     outputSourceRange: options.outputSourceRange,
-    start: function start (tag, attrs, unary, start$1) {
+    start: function start (tag, attrs, unary, start$1, end) {
       // check namespace.
       // inherit parent ns if there is one
       var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);
@@ -2553,6 +2553,7 @@ function parse (
       if (process.env.NODE_ENV !== 'production') {
         if (options.outputSourceRange) {
           element.start = start$1;
+          element.end = end;
           element.rawAttrsMap = element.attrsList.reduce(function (cumulated, attr) {
             cumulated[attr.name] = attr;
             return cumulated
@@ -4216,7 +4217,7 @@ function genScopedSlots (
   // components with only scoped slots to skip forced updates from parent.
   // but in some cases we have to bail-out of this optimization
   // for example if the slot contains dynamic names, has v-if or v-for on them...
-  var needsForceUpdate = Object.keys(slots).some(function (key) {
+  var needsForceUpdate = el.for || Object.keys(slots).some(function (key) {
     var slot = slots[key];
     return (
       slot.slotTargetDynamic ||
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 4d0e685087f..272467813f1 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.7",
+  "version": "2.6.8",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From d123c7e4c67cb17c265f3a4f741fae71b69f5dc9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 1 Mar 2019 10:03:38 -0500
Subject: [PATCH 846/911] build: release 2.6.8

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index e8055dbb25e..37debb1054b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.7",
+  "version": "2.6.8",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 6ad99796c747987142c21b45c9361cca60e54e68 Mon Sep 17 00:00:00 2001
From: Jagannath Bhat <jagannathbhatjb@gmail.com>
Date: Mon, 4 Mar 2019 22:23:59 +0530
Subject: [PATCH 847/911] docs: fix spelling and grammatical errors (#9619)

---
 .github/CODE_OF_CONDUCT.md               |  2 +-
 .github/COMMIT_CONVENTION.md             | 10 +++++-----
 .github/CONTRIBUTING.md                  | 10 +++++-----
 benchmarks/ssr/README.md                 |  2 +-
 benchmarks/uptime/index.html             |  2 +-
 dist/README.md                           |  2 +-
 packages/vue-template-compiler/README.md |  4 ++--
 7 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/.github/CODE_OF_CONDUCT.md b/.github/CODE_OF_CONDUCT.md
index 4ead0e1daf2..b39f08e2d28 100644
--- a/.github/CODE_OF_CONDUCT.md
+++ b/.github/CODE_OF_CONDUCT.md
@@ -2,7 +2,7 @@
 
 As contributors and maintainers of this project, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities.
 
-We are committed to making participation in this project a harassment-free experience for everyone, regardless of level of experience, gender, gender identity and expression, sexual orientation, disability, personal appearance, body size, race, age, or religion.
+We are committed to making participation in this project a harassment-free experience for everyone, regardless of the level of experience, gender, gender identity and expression, sexual orientation, disability, personal appearance, body size, race, age, or religion.
 
 Examples of unacceptable behavior by participants include the use of sexual language or imagery, derogatory comments or personal attacks, trolling, public or private harassment, insults, or other unprofessional conduct.
 
diff --git a/.github/COMMIT_CONVENTION.md b/.github/COMMIT_CONVENTION.md
index 02e7ad26ab1..381bf17baab 100644
--- a/.github/COMMIT_CONVENTION.md
+++ b/.github/COMMIT_CONVENTION.md
@@ -58,24 +58,24 @@ The **header** is mandatory and the **scope** of the header is optional.
 
 ### Revert
 
-If the commit reverts a previous commit, it should begin with `revert: `, followed by the header of the reverted commit. In the body it should say: `This reverts commit <hash>.`, where the hash is the SHA of the commit being reverted.
+If the commit reverts a previous commit, it should begin with `revert: `, followed by the header of the reverted commit. In the body, it should say: `This reverts commit <hash>.`, where the hash is the SHA of the commit being reverted.
 
 ### Type
 
-If the prefix is `feat`, `fix` or `perf`, it will appear in the changelog. However if there is any [BREAKING CHANGE](#footer), the commit will always appear in the changelog.
+If the prefix is `feat`, `fix` or `perf`, it will appear in the changelog. However, if there is any [BREAKING CHANGE](#footer), the commit will always appear in the changelog.
 
 Other prefixes are up to your discretion. Suggested prefixes are `docs`, `chore`, `style`, `refactor`, and `test` for non-changelog related tasks.
 
 ### Scope
 
-The scope could be anything specifying place of the commit change. For example `core`, `compiler`, `ssr`, `v-model`, `transition` etc...
+The scope could be anything specifying the place of the commit change. For example `core`, `compiler`, `ssr`, `v-model`, `transition` etc...
 
 ### Subject
 
-The subject contains succinct description of the change:
+The subject contains a succinct description of the change:
 
 * use the imperative, present tense: "change" not "changed" nor "changes"
-* don't capitalize first letter
+* don't capitalize the first letter
 * no dot (.) at the end
 
 ### Body
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 7a01d7b58cd..88f23b3b6ee 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -24,13 +24,13 @@ Hi! I'm really excited that you are interested in contributing to Vue.js. Before
 
 - Make sure `npm test` passes. (see [development setup](#development-setup))
 
-- If adding new feature:
+- If adding a new feature:
   - Add accompanying test case.
-  - Provide convincing reason to add this feature. Ideally, you should open a suggestion issue first and have it approved before working on it.
+  - Provide a convincing reason to add this feature. Ideally, you should open a suggestion issue first and have it approved before working on it.
 
 - If fixing bug:
   - If you are resolving a special issue, add `(fix #xxxx[,#xxxx])` (#xxxx is the issue id) in your PR title for a better release log, e.g. `update entities encoding/decoding (fix #3899)`.
-  - Provide detailed description of the bug in the PR. Live demo preferred.
+  - Provide a detailed description of the bug in the PR. Live demo preferred.
   - Add appropriate test coverage if applicable.
 
 ## Development Setup
@@ -59,7 +59,7 @@ $ npm run dev:test
 # build all dist files, including npm packages
 $ npm run build
 
-# run the full test suite, include linting / type checking
+# run the full test suite, include linting/type checking
 $ npm test
 ```
 
@@ -93,7 +93,7 @@ The default test script will do the following: lint with ESLint -> type check wi
 
   - **`core`**: contains universal, platform-agnostic runtime code.
 
-    The Vue 2.0 core is platform-agnostic. That is, code inside `core` is able to be run in any JavaScript environment, be it the browser, Node.js, or an embedded JavaScript runtime in native applications.
+    The Vue 2.0 core is platform-agnostic. That is, the code inside `core` is able to be run in any JavaScript environment, be it the browser, Node.js, or an embedded JavaScript runtime in native applications.
 
     - **`observer`**: contains code related to the reactivity system.
 
diff --git a/benchmarks/ssr/README.md b/benchmarks/ssr/README.md
index 2f0529c1fd8..c61d6daa57d 100644
--- a/benchmarks/ssr/README.md
+++ b/benchmarks/ssr/README.md
@@ -2,7 +2,7 @@
 
 This benchmark renders a table of 1000 rows with 10 columns (10k components), with around 30k normal elements on the page. Note this is not something likely to be seen in a typical app. This benchmark is mostly for stress/regression testing and comparing between `renderToString` and `renderToStream`.
 
-To view the results follow the run section. Note that the overall completion time for the results are variable, this is due to other system related variants at run time (available memory, processing power, etc). In ideal circumstances both should finish within similar results.
+To view the results follow the run section. Note that the overall completion time for the results is variable, this is due to other system related variants at run time (available memory, processing power, etc). In ideal circumstances, both should finish within similar results.
 
 `renderToStream` pipes the content through a stream which provides considerable performance benefits (faster time-to-first-byte and non-event-loop-blocking) over `renderToString`. This can be observed through the benchmark.
 
diff --git a/benchmarks/uptime/index.html b/benchmarks/uptime/index.html
index 4a375152cf2..d52fd868c88 100644
--- a/benchmarks/uptime/index.html
+++ b/benchmarks/uptime/index.html
@@ -82,7 +82,7 @@
     </div>
     <script src="../../dist/vue.min.js"></script>
     <script>
-      // functional components are prefect for small, presentational components
+      // functional components are perfect for small, presentational components
       // and they are much more efficient than stateful ones.
       Vue.component('uptime-day', {
         props: ['day'],
diff --git a/dist/README.md b/dist/README.md
index 3452084b68c..fc0e9ddf0f2 100644
--- a/dist/README.md
+++ b/dist/README.md
@@ -25,7 +25,7 @@
 
 If you need to compile templates on the fly (e.g. passing a string to the `template` option, or mounting to an element using its in-DOM HTML as the template), you will need the compiler and thus the full build.
 
-When using `vue-loader` or `vueify`, templates inside `*.vue` files are compiled into JavaScript at build time. You don't really need the compiler in the final bundle, and can therefore use the runtime-only build.
+When using `vue-loader` or `vueify`, templates inside `*.vue` files are compiled into JavaScript at build time. You don't really need the compiler in the final bundle, and can therefore, use the runtime-only build.
 
 Since the runtime-only builds are roughly 30% lighter-weight than their full-build counterparts, you should use it whenever you can. If you wish to use the full build instead, you need to configure an alias in your bundler.
 
diff --git a/packages/vue-template-compiler/README.md b/packages/vue-template-compiler/README.md
index 9861bbdf992..e84aab824fc 100644
--- a/packages/vue-template-compiler/README.md
+++ b/packages/vue-template-compiler/README.md
@@ -37,7 +37,7 @@ Note the returned function code uses `with` and thus cannot be used in strict mo
   - Type: `boolean`
   - Default: `false`
 
-  Set this to true will cause the `errors` returned in the compiled result become objects in the form of `{ msg, start, end }`. The `start` and `end` properties are numbers that mark the code range of the error source in the template. This can be passed on to the `compiler.generateCodeFrame` API to generate code frame for the error.
+  Set this to true will cause the `errors` returned in the compiled result become objects in the form of `{ msg, start, end }`. The `start` and `end` properties are numbers that mark the code range of the error source in the template. This can be passed on to the `compiler.generateCodeFrame` API to generate a code frame for the error.
 
 - `whitespace`
   - Type: `string`
@@ -52,7 +52,7 @@ Note the returned function code uses `with` and thus cannot be used in strict mo
   If set to `'condense'`:
 
   - A whitespace-only text node between element tags is removed if it contains new lines. Otherwise, it is condensed into a single space.
-  - Consecutive whitespaces inside a non-whitespace-only text node is condensed into a single space.
+  - Consecutive whitespaces inside a non-whitespace-only text node are condensed into a single space.
 
   Using condense mode will result in smaller compiled code size and slightly improved performance. However, it will produce minor visual layout differences compared to plain HTML in certain cases.
 

From 0c4c78bfc026bed79e76d0d0009b6ed15b6bb008 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Tue, 5 Mar 2019 16:44:12 -0500
Subject: [PATCH 848/911] chore: update sponsors [ci skip] (#9622)

---
 BACKERS.md | 28 ++++------------------------
 README.md  | 23 ++++-------------------
 2 files changed, 8 insertions(+), 43 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 9cd7ae6ed05..ec1959055d2 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -145,28 +145,18 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://webdock.io/en" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
@@ -187,8 +177,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firestick_tricks.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://github.com/marcus-hiles" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
@@ -199,6 +187,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/intygrate.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
@@ -209,11 +199,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bacancytechnology.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
@@ -278,11 +263,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tighten_co.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://alligator.io" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/alligator_io.svg">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.accelebrate.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/accelebrate.png">
diff --git a/README.md b/README.md
index 4939724bf33..966608f6ca9 100644
--- a/README.md
+++ b/README.md
@@ -150,28 +150,18 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.valuecoders.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
-      <td align="center" valign="middle">
-        <a href="https://webdock.io/en" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/webdock.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
@@ -192,8 +182,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firestick_tricks.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://github.com/marcus-hiles" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
@@ -204,6 +192,8 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/intygrate.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
@@ -214,11 +204,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bacancytechnology.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">

From 731e4d0ebc997a6c2b1fc500b08924ff7ba091b6 Mon Sep 17 00:00:00 2001
From: DSha <shasharoman@gmail.com>
Date: Wed, 6 Mar 2019 05:46:56 +0800
Subject: [PATCH 849/911] types: use normalized type for
 `RenderContext.scopedSlots` (#9624)

fix #9616
---
 types/options.d.ts     | 4 ++--
 types/test/vue-test.ts | 7 +++++++
 types/vue.d.ts         | 2 +-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index 1bb5fbb619f..dcb38614ed3 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -1,5 +1,5 @@
 import { Vue, CreateElement, CombinedVueInstance } from "./vue";
-import { VNode, VNodeData, VNodeDirective, ScopedSlot } from "./vnode";
+import { VNode, VNodeData, VNodeDirective, NormalizedScopedSlot } from "./vnode";
 
 type Constructor = {
   new (...args: any[]): any;
@@ -140,7 +140,7 @@ export interface RenderContext<Props=DefaultProps> {
   data: VNodeData;
   parent: Vue;
   listeners: { [key: string]: Function | Function[] };
-  scopedSlots: { [key: string]: ScopedSlot };
+  scopedSlots: { [key: string]: NormalizedScopedSlot };
   injections: any
 }
 
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index 54c4405264d..ca04e84714a 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -147,6 +147,13 @@ const FunctionalHelloWorldComponent = Vue.extend({
   }
 });
 
+const FunctionalScopedSlotsComponent = Vue.extend({
+  functional: true,
+  render(h, ctx) {
+    return ctx.scopedSlots.default && ctx.scopedSlots.default({}) || h('div', 'functional scoped slots');
+  }
+});
+
 const Parent = Vue.extend({
   data() {
     return { greeting: 'Hello' }
diff --git a/types/vue.d.ts b/types/vue.d.ts
index be2477b3f27..204f9cca94d 100644
--- a/types/vue.d.ts
+++ b/types/vue.d.ts
@@ -12,7 +12,7 @@ import {
   ThisTypedComponentOptionsWithRecordProps,
   WatchOptions,
 } from "./options";
-import { VNode, VNodeData, VNodeChildren, ScopedSlot, NormalizedScopedSlot } from "./vnode";
+import { VNode, VNodeData, VNodeChildren, NormalizedScopedSlot } from "./vnode";
 import { PluginFunction, PluginObject } from "./plugin";
 
 export interface CreateElement {

From 0b57380f10986c6b07e3c240acc06bfd2eddfd1b Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Sat, 9 Mar 2019 01:00:47 +0800
Subject: [PATCH 850/911] fix: v-bind object should be overridable by single
 bindings (#9653)

fix #9641
---
 src/core/instance/render-helpers/bind-object-props.js | 8 +++++---
 test/unit/features/directives/bind.spec.js            | 5 ++---
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/core/instance/render-helpers/bind-object-props.js b/src/core/instance/render-helpers/bind-object-props.js
index 9a7b46dfa95..f1b34ae2f1e 100644
--- a/src/core/instance/render-helpers/bind-object-props.js
+++ b/src/core/instance/render-helpers/bind-object-props.js
@@ -7,7 +7,8 @@ import {
   isObject,
   toObject,
   isReservedAttribute,
-  camelize
+  camelize,
+  hyphenate
 } from 'core/util/index'
 
 /**
@@ -45,12 +46,13 @@ export function bindObjectProps (
             : data.attrs || (data.attrs = {})
         }
         const camelizedKey = camelize(key)
-        if (!(key in hash) && !(camelizedKey in hash)) {
+        const hyphenatedKey = hyphenate(key)
+        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
           hash[key] = value[key]
 
           if (isSync) {
             const on = data.on || (data.on = {})
-            on[`update:${camelizedKey}`] = function ($event) {
+            on[`update:${key}`] = function ($event) {
               value[key] = $event
             }
           }
diff --git a/test/unit/features/directives/bind.spec.js b/test/unit/features/directives/bind.spec.js
index 3d29c984369..7e4827dc061 100644
--- a/test/unit/features/directives/bind.spec.js
+++ b/test/unit/features/directives/bind.spec.js
@@ -234,7 +234,7 @@ describe('Directive v-bind', () => {
       template: `<test v-bind="test" data-foo="foo" dataBar="bar"/>`,
       components: {
         test: {
-          template: '<div :data-foo="dataFoo" :data-bar="dataBar"></div>',
+          template: '<div>{{ dataFoo }} {{ dataBar }}</div>',
           props: ['dataFoo', 'dataBar']
         }
       },
@@ -245,8 +245,7 @@ describe('Directive v-bind', () => {
         }
       }
     }).$mount()
-    expect(vm.$el.getAttribute('data-foo')).toBe('foo')
-    expect(vm.$el.getAttribute('data-bar')).toBe('bar')
+    expect(vm.$el.textContent).toBe('foo bar')
   })
 
   it('.sync modifier with bind object', done => {

From da77d6a98bdccd8a2c8bfdfe6b9cb46efcb1193c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20B=C3=BCnemann?= <Felix.Buenemann@gmail.com>
Date: Fri, 8 Mar 2019 18:04:28 +0100
Subject: [PATCH 851/911] fix(scheduler): fix getNow check in IE9 (#9647)

fix #9632
---
 src/core/observer/scheduler.js | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index d78b4d0fee8..1463fc64ad3 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -47,10 +47,15 @@ let getNow: () => number = Date.now
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
+if (
+  inBrowser &&
+  window.performance &&
+  typeof performance.now === 'function' &&
+  getNow() > document.createEvent('Event').timeStamp
+) {
+  // if the event timestamp is bigger than the hi-res timestamp
+  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+  // and we need to use the lo-res version for event listeners as well.
   getNow = () => performance.now()
 }
 

From 9313cf91740e1d43c43cf9e73d905dbab913beb5 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 9 Mar 2019 02:03:19 +0800
Subject: [PATCH 852/911] fix: should consider presence of normal slots when
 caching normalized scoped slots

fix #9644
---
 .../vdom/helpers/normalize-scoped-slots.js    |  5 ++-
 .../component/component-scoped-slot.spec.js   | 37 +++++++++++++++++++
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index b2e41bf566a..a9c1bae8bf6 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -11,6 +11,7 @@ export function normalizeScopedSlots (
 ): any {
   let res
   const isStable = slots ? !!slots.$stable : true
+  const hasNormalSlots = Object.keys(normalSlots).length > 0
   const key = slots && slots.$key
   if (!slots) {
     res = {}
@@ -22,7 +23,8 @@ export function normalizeScopedSlots (
     prevSlots &&
     prevSlots !== emptyObject &&
     key === prevSlots.$key &&
-    Object.keys(normalSlots).length === 0
+    !hasNormalSlots &&
+    !prevSlots.$hasNormal
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
@@ -48,6 +50,7 @@ export function normalizeScopedSlots (
   }
   def(res, '$stable', isStable)
   def(res, '$key', key)
+  def(res, '$hasNormal', hasNormalSlots)
   return res
 }
 
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index e12932cdd74..ae86dd96ee8 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1227,4 +1227,41 @@ describe('Component scoped slot', () => {
       expect(vm.$el.textContent.trim()).toBe(`2`)
     }).then(done)
   })
+
+  // #9644
+  it('should factor presence of normal slots into scoped slots caching', done => {
+    const Wrapper = {
+      template: `<div>
+        <p>Default:<slot/></p>
+        <p>Content:<slot name='content'/></p>
+      </div>`
+    }
+
+    const vm = new Vue({
+      data: { ok: false },
+      components: { Wrapper },
+      template: `<wrapper>
+        <p v-if='ok'>ok</p>
+        <template #content>
+          <p v-if='ok'>ok</p>
+        </template>
+      </wrapper>`
+    }).$mount()
+
+    expect(vm.$el.textContent).not.toMatch(`Default:ok`)
+    expect(vm.$el.textContent).not.toMatch(`Content:ok`)
+    vm.ok = true
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toMatch(`Default:ok`)
+      expect(vm.$el.textContent).toMatch(`Content:ok`)
+      vm.ok = false
+    }).then(() => {
+      expect(vm.$el.textContent).not.toMatch(`Default:ok`)
+      expect(vm.$el.textContent).not.toMatch(`Content:ok`)
+      vm.ok = true
+    }).then(() => {
+      expect(vm.$el.textContent).toMatch(`Default:ok`)
+      expect(vm.$el.textContent).toMatch(`Content:ok`)
+    }).then(done)
+  })
 })

From 781c70514e01bc402828946805bfad7437c7175e Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sat, 9 Mar 2019 02:44:08 +0800
Subject: [PATCH 853/911] fix: should use fallback for scoped slots with single
 falsy v-if

fix #9658
---
 src/core/vdom/helpers/normalize-scoped-slots.js     |  6 ++++--
 .../component/component-scoped-slot.spec.js         | 13 +++++++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index a9c1bae8bf6..cc0348f6550 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -60,8 +60,10 @@ function normalizeScopedSlot(normalSlots, key, fn) {
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res)
-    return res && res.length === 0
-      ? undefined
+    return res && (
+      res.length === 0 ||
+      (res.length === 1 && res[0].isComment) // #9658
+    ) ? undefined
       : res
   }
   // this is a slot using the new v-slot syntax without scope. although it is
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index ae86dd96ee8..8960d8bf8c5 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1264,4 +1264,17 @@ describe('Component scoped slot', () => {
       expect(vm.$el.textContent).toMatch(`Content:ok`)
     }).then(done)
   })
+
+  //#9658
+  it('fallback for scoped slot with single v-if', () => {
+    const vm = new Vue({
+      template: `<test v-slot><template v-if="false">hi</template></test>`,
+      components: {
+        Test: {
+          template: `<div><slot>fallback</slot></div>`
+        }
+      }
+    }).$mount()
+    expect(vm.$el.textContent).toMatch('fallback')
+  })
 })

From ef2a380c6eb6bd1a7ff516c357dafa717e75a745 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20B=C3=BCnemann?= <Felix.Buenemann@gmail.com>
Date: Mon, 11 Mar 2019 03:28:06 +0100
Subject: [PATCH 854/911] fix(scheduler): getNow detection can randomly fail
 (#9667)

The previous detection code compared time stamps based on Date.now()
which are not monotonic, so the check could fail due to clock skew or
adjustments.

This fix changes the check to compare against performance.now() if it is
supported, because it is monotonic (strictly increasing).
---
 src/core/observer/scheduler.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index 1463fc64ad3..b0583ed12bd 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -51,7 +51,7 @@ if (
   inBrowser &&
   window.performance &&
   typeof performance.now === 'function' &&
-  getNow() > document.createEvent('Event').timeStamp
+  document.createEvent('Event').timeStamp <= performance.now()
 ) {
   // if the event timestamp is bigger than the hi-res timestamp
   // (which is evaluated AFTER) it means the event is using a lo-res timestamp,

From 19c0f80d2cfaa1327aa019663b2e33dff6be0787 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Sun, 10 Mar 2019 22:54:26 -0400
Subject: [PATCH 855/911] chore: update backers [ci skip] (#9621)

---
 BACKERS.md | 112 +++++++++++++++++++++++++----------------------------
 1 file changed, 53 insertions(+), 59 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index ec1959055d2..be5c718f5d8 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -319,15 +319,15 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <h2 align="center">Generous Backers via Patreon ($50+)</h2>
 
 <!--50 start-->
-- Jamie K
 - Wasim Khamlichi
 - errorrik
 - Alex Balashov
 - Konstantin Levinski
 - Blaise Laflamme
-- Ernest Sim
 - Dilettant
 - Sean Ferguson
+- Johnny Ray Austin
+- IdealCoders
 <!--50 end-->
 
 <h2 align="center">Backers via Patreon</h2>
@@ -337,119 +337,113 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Shawn Wildermuth
 - Samuel Smith
 - donny
-- Jake Ingman
+- Sean Washington
 - Simon East
 - kazupon
 - Lars Andreas Ness
-- Luca Borghini
-- Sean Washington
-- Benjamin Listwon
-- Keisuke Kita
 - Kirk Lewis
+- Stephen Michael Hartley
+- Keisuke Kita
 - Wen-Tien Chang
+- Benjamin Listwon
 - Victor Tolbert
-- Stephen Michael Hartley
 - Karol
 - Phan An
+- Barbara Liau
 - Miljan Aleksic
 - James J. Ye
-- Barbara Liau
 - Luiz
-- Matsumoto Takamasa
 - Jarek Tkaczyk
+- Matsumoto Takamasa
 - Duncan Kenzie
 - Mike Margerum
-- Guy Gavergun
-- Matt Jones
 - Niannian Modisette
 - Bernhard E. Reiter
-- Pierre Vanhulst
+- Matt Jones
+- Guy Gavergun
 - Zoran Knezevic
-- Chengzhi Yin
-- Shinya Katayama
 - Jon Hobbs-Smith
-- Anthony Estebe
+- Pierre Vanhulst
+- Shinya Katayama
 - Asaf Yishai
-- Haim Yulzari
+- Anthony Estebe
 - Akiho Nagao
-- Jeremy Tan
+- Haim Yulzari
 - Jim Raden
-- Tai Shi Ling
 - IMGNRY
+- Jeremy Tan
+- Tyler
 - Yong Jun Thong
+- Tai Shi Ling
+- Jamie McElwain
 - Matias Verdier
-- Chih-Hsuan Fan
-- Tyler
-- Daniel Waghorn
 - Vivekanandhan Natarajan
+- Daniel Waghorn
+- Mickaël Andrieu
+- Chih-Hsuan Fan
 - Rafael Belvederese
-- Jamie McElwain
+- Guilherme S L de Souza
+- Joe Gregory
 - Cliff Hess
 - Rob Yedlin
-- Mickaël Andrieu
-- Guilherme S L de Souza
 - Jordan Oroshiba
-- Joe Gregory
-- Marcos Moura
 - RADD Creative
+- Marcos Moura
 - Richard Simpson
-- Alok Pant
 - Jessie Hernandez
-- Ivan Sieder
 - Aparajita Fishman
+- Ivan Sieder
 - Eric
-- Christo Crampton
 - Romain Lienard
+- Christo Crampton
+- David Ang
 - Bohdan Kokotko
 - Donald Fischer
-- Jere Sjöroos
-- David Ang
-- Alexander Weiher
-- Oskar Lindgren
-- Jaeyoung Lee
 - Wakana Seki
-- Ben Hong
-- John Cleveland
-- Tom Ootes
-- Domenico Gaudioso
 - David Kaplan
-- Amor
+- Domenico Gaudioso
+- Jaeyoung Lee
+- Ben Hong
+- Alexander Weiher
+- Oskar Lindgren
+- Jere Sjöroos
 - Andy
-- Hannes Kochniß
-- Juan Bermudez
+- John Cleveland
 - Daniel Mattingley
-- Matt Sencenbaugh
 - Joe Cochran
+- Elon Hung
+- Teon Ooi
 - Chris Calo
 - Colt Borg
-- Teon Ooi
+- Matt Sencenbaugh
+- Hannes Kochniß
 - Alberto T. Payero Mota
-- Elon Hung
+- Juan Bermudez
 - Milan Zivkovic
-- Johnny Ray Austin
-- Tom Meagher
-- Soichiro Isshiki
-- Abraham Arango
-- Marko Boskovic
 - Garion Herman
-- Ed Linklater
 - Christopher Bemister
+- Ed Linklater
+- Marko Boskovic
+- Soichiro Isshiki
 - Andrew Willis
-- Princeyesuraj Edward
 - Yusuke Kawabata
-- We
-- Carlos Adrián
-- Nick Dandakis
+- Princeyesuraj Edward
 - shimbaco
+- Nick Dandakis
+- Carlos Adrián
+- Peter Matkovsky
 - 极 蔡
 - 龙腾道
-- alcalbg
 - Kenneth Crawford
-- Peter Matkovsky
+- Fedor Indutny
 - Fabien GuySake Ungerer
-- Kevin Batdorf
+- Max Fletcher
 - Masato Miura
-- Fedor Indutny
+- Nathan Mallison
+- David McGuigan
+- Bill Condo
+- Kevin Batdorf
+- Pierre Lebrun
 - Juli A Schlack
 <!--10 end-->
 

From eafea3134e19aaaed1937657553bc7a101acd869 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Mon, 11 Mar 2019 19:08:55 -0400
Subject: [PATCH 856/911] chore: update sponsors [ci skip] (#9675)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index be5c718f5d8..2e9314580af 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -204,6 +204,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.bestvpn.co/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 966608f6ca9..e0cbefbfea6 100644
--- a/README.md
+++ b/README.md
@@ -209,6 +209,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.bestvpn.co/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From aa043347818a39da695375697e8ae2b9afb846c8 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Tue, 12 Mar 2019 01:41:16 -0400
Subject: [PATCH 857/911] chore: update sponsors [ci skip] (#9680)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 2e9314580af..9f0d90ede2f 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -209,6 +209,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://en.shopware.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.svg">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index e0cbefbfea6..dda1c36afe3 100644
--- a/README.md
+++ b/README.md
@@ -214,6 +214,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://en.shopware.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.svg">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 2747a657654d1006bf7061faec1b3029fb9b4432 Mon Sep 17 00:00:00 2001
From: Decade <decadef20@users.noreply.github.com>
Date: Wed, 13 Mar 2019 10:19:19 +0800
Subject: [PATCH 858/911] test: remove unused code (#9684)

---
 test/unit/modules/observer/observer.spec.js | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/test/unit/modules/observer/observer.spec.js b/test/unit/modules/observer/observer.spec.js
index 5f075bccc95..5a8d47c1bc2 100644
--- a/test/unit/modules/observer/observer.spec.js
+++ b/test/unit/modules/observer/observer.spec.js
@@ -226,19 +226,7 @@ describe('Observer', () => {
     })
 
     observe(obj)
-    // mock a watcher!
-    const watcher = {
-      deps: [],
-      addDep: function (dep) {
-        this.deps.push(dep)
-        dep.addSub(this)
-      },
-      update: jasmine.createSpy()
-    }
-    // collect dep
-    Dep.target = watcher
     expect(obj.a).toBe(2) // Make sure 'this' is preserved
-    Dep.target = null
     obj.a = 3
     expect(obj.val).toBe(3) // make sure 'setter' was called
     obj.val = 5

From d28240009c4c49fb2ef42a79206f0d9ad03f736c Mon Sep 17 00:00:00 2001
From: "Xin Du (Clark)" <clark.duxin@gmail.com>
Date: Wed, 13 Mar 2019 09:16:44 +0000
Subject: [PATCH 859/911] fix(ssr): not push non-async css files into map
 (#9677)

---
 src/server/template-renderer/create-async-file-mapper.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/server/template-renderer/create-async-file-mapper.js b/src/server/template-renderer/create-async-file-mapper.js
index 64c0647a3ed..c989e33b9a4 100644
--- a/src/server/template-renderer/create-async-file-mapper.js
+++ b/src/server/template-renderer/create-async-file-mapper.js
@@ -43,8 +43,8 @@ function mapIdToFile (id, clientManifest) {
   if (fileIndices) {
     fileIndices.forEach(index => {
       const file = clientManifest.all[index]
-      // only include async files or non-js assets
-      if (clientManifest.async.indexOf(file) > -1 || !(/\.js($|\?)/.test(file))) {
+      // only include async files or non-js, non-css assets
+      if (clientManifest.async.indexOf(file) > -1 || !(/\.(js|css)($|\?)/.test(file))) {
         files.push(file)
       }
     })

From 7591b9dc6dde314f2d32dcd7a8355f696a330979 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 13 Mar 2019 17:18:47 +0800
Subject: [PATCH 860/911] fix: event timeStamp check for Qt

fix #9681
---
 src/platforms/web/runtime/modules/events.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/platforms/web/runtime/modules/events.js b/src/platforms/web/runtime/modules/events.js
index e55322586a2..ecb08af32de 100644
--- a/src/platforms/web/runtime/modules/events.js
+++ b/src/platforms/web/runtime/modules/events.js
@@ -67,8 +67,10 @@ function add (
         e.target === e.currentTarget ||
         // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
-        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-        e.timeStamp === 0 ||
+        // bail for environments that have buggy event.timeStamp implementations
+        // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+        // #9681 QtWebEngine event.timeStamp is negative value
+        e.timeStamp <= 0 ||
         // #9448 bail if event is fired in another document in a multi-page
         // electron/nw.js app, since event.timeStamp will be using a different
         // starting reference

From 8082d2f910d963f14c151fb445e0fcc5c975cca9 Mon Sep 17 00:00:00 2001
From: krystal <krystalnumber@gmail.com>
Date: Wed, 13 Mar 2019 17:20:28 +0800
Subject: [PATCH 861/911] fix(ssr): fix nested async functional componet
 rendering (#9673)

fix #9643
---
 .../vdom/helpers/resolve-async-component.js   |  4 +--
 test/ssr/ssr-string.spec.js                   | 35 +++++++++++++++++++
 2 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index fa76090553c..534c444f2a2 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -53,7 +53,7 @@ export function resolveAsyncComponent (
   }
 
   const owner = currentRenderingInstance
-  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
     // already pending
     factory.owners.push(owner)
   }
@@ -62,7 +62,7 @@ export function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (!isDef(factory.owners)) {
+  if (owner && !isDef(factory.owners)) {
     const owners = factory.owners = [owner]
     let sync = true
 
diff --git a/test/ssr/ssr-string.spec.js b/test/ssr/ssr-string.spec.js
index 19bc4005419..e18ca2aead9 100644
--- a/test/ssr/ssr-string.spec.js
+++ b/test/ssr/ssr-string.spec.js
@@ -640,6 +640,41 @@ describe('SSR: renderToString', () => {
     })
   })
 
+  it('renders nested async functional component', done => {
+    renderVmWithOptions({
+      template: `
+        <div>
+          <outer-async></outer-async>
+        </div>
+      `,
+      components: {
+        outerAsync (resolve) {
+          setTimeout(() => resolve({
+            functional: true,
+            render (h) {
+              return h('innerAsync')
+            }
+          }), 1)
+        },
+        innerAsync (resolve) {
+          setTimeout(() => resolve({
+            functional: true,
+            render (h) {
+              return h('span', { class: ['a'] }, 'inner')
+            },
+          }), 1)
+        }
+      }
+    }, result => {
+      expect(result).toContain(
+        '<div data-server-rendered="true">' +
+          '<span class="a">inner</span>' +
+        '</div>'
+      )
+      done()
+    })
+  })
+
   it('should catch async component error', done => {
     Vue.config.silent = true
     renderToString(new Vue({

From 7186940143704acc4ec046132f6a56e9c983e510 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Mar 2019 15:25:01 +0800
Subject: [PATCH 862/911] fix: should not swallow user catch on rejected
 promise in methods

fix #9694
---
 src/core/util/error.js                                     | 7 ++++---
 .../{invoke-with-error-handling.spec.js => error.spec.js}  | 7 +++++--
 2 files changed, 9 insertions(+), 5 deletions(-)
 rename test/unit/modules/util/{invoke-with-error-handling.spec.js => error.spec.js} (74%)

diff --git a/src/core/util/error.js b/src/core/util/error.js
index 8b8b9014ddb..4dbdbc7443d 100644
--- a/src/core/util/error.js
+++ b/src/core/util/error.js
@@ -43,10 +43,11 @@ export function invokeWithErrorHandling (
   let res
   try {
     res = args ? handler.apply(context, args) : handler.call(context)
-    if (res && !res._isVue && isPromise(res)) {
+    if (res && !res._isVue && isPromise(res) && !res._handled) {
+      res.catch(e => handleError(e, vm, info + ` (Promise/async)`))
       // issue #9511
-      // reassign to res to avoid catch triggering multiple times when nested calls
-      res = res.catch(e => handleError(e, vm, info + ` (Promise/async)`))
+      // avoid catch triggering multiple times when nested calls
+      res._handled = true
     }
   } catch (e) {
     handleError(e, vm, info)
diff --git a/test/unit/modules/util/invoke-with-error-handling.spec.js b/test/unit/modules/util/error.spec.js
similarity index 74%
rename from test/unit/modules/util/invoke-with-error-handling.spec.js
rename to test/unit/modules/util/error.spec.js
index c958203ccec..c9152bbb7bc 100644
--- a/test/unit/modules/util/invoke-with-error-handling.spec.js
+++ b/test/unit/modules/util/error.spec.js
@@ -6,14 +6,17 @@ describe('invokeWithErrorHandling', () => {
     it('should errorHandler call once when nested calls return rejected promise', done => {
       const originalHandler = Vue.config.errorHandler
       const handler = Vue.config.errorHandler = jasmine.createSpy()
+      const userCatch = jasmine.createSpy()
+      const err = new Error('fake error')
 
       invokeWithErrorHandling(() => {
         return invokeWithErrorHandling(() => {
-          return Promise.reject(new Error('fake error'))
+          return Promise.reject(err)
         })
-      }).then(() => {
+      }).catch(userCatch).then(() => {
         Vue.config.errorHandler = originalHandler
         expect(handler.calls.count()).toBe(1)
+        expect(userCatch).toHaveBeenCalledWith(err)
         done()
       })
     })

From d44cc20e968cb5a44202813e22b3b7c1377e69b1 Mon Sep 17 00:00:00 2001
From: Pengfei Yang <pengfei_yang@outlook.com>
Date: Thu, 14 Mar 2019 15:27:00 +0800
Subject: [PATCH 863/911] chore: remove unused build alias (#9525)

---
 scripts/alias.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/alias.js b/scripts/alias.js
index 30a27b59c19..03904cca35d 100644
--- a/scripts/alias.js
+++ b/scripts/alias.js
@@ -10,6 +10,5 @@ module.exports = {
   web: resolve('src/platforms/web'),
   weex: resolve('src/platforms/weex'),
   server: resolve('src/server'),
-  entries: resolve('src/entries'),
   sfc: resolve('src/sfc')
 }

From 4de4649d9637262a9b007720b59f80ac72a5620c Mon Sep 17 00:00:00 2001
From: DSha <shasharoman@gmail.com>
Date: Thu, 14 Mar 2019 15:45:42 +0800
Subject: [PATCH 864/911] fix(transition): fix appear check for transition
 wrapper components (#9668)

---
 examples/modal/index.html                     |   2 +-
 .../web/runtime/modules/transition.js         |   2 +-
 .../features/transition/transition.spec.js    | 118 +++++++++++++++++-
 3 files changed, 117 insertions(+), 5 deletions(-)

diff --git a/examples/modal/index.html b/examples/modal/index.html
index e2121617646..34b4ebb1d2b 100644
--- a/examples/modal/index.html
+++ b/examples/modal/index.html
@@ -10,7 +10,7 @@
   <body>
     <!-- template for the modal component -->
     <script type="text/x-template" id="modal-template">
-      <transition name="modal">
+      <transition name="modal" appear>
         <div class="modal-mask">
           <div class="modal-wrapper">
             <div class="modal-container">
diff --git a/src/platforms/web/runtime/modules/transition.js b/src/platforms/web/runtime/modules/transition.js
index 128a1c0bd1b..6117097088d 100644
--- a/src/platforms/web/runtime/modules/transition.js
+++ b/src/platforms/web/runtime/modules/transition.js
@@ -66,8 +66,8 @@ export function enter (vnode: VNodeWithData, toggleDisplay: ?() => void) {
   let context = activeInstance
   let transitionNode = activeInstance.$vnode
   while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent
     context = transitionNode.context
+    transitionNode = transitionNode.parent
   }
 
   const isAppear = !context._isMounted || !vnode.isRootInsert
diff --git a/test/unit/features/transition/transition.spec.js b/test/unit/features/transition/transition.spec.js
index 2ecf80b854d..6bfc8e7e53b 100644
--- a/test/unit/features/transition/transition.spec.js
+++ b/test/unit/features/transition/transition.spec.js
@@ -842,7 +842,7 @@ if (!isIE9) {
       }).then(done)
     })
 
-    it('transition inside child component', done => {
+    it('transition inside child component with v-if', done => {
       const vm = new Vue({
         template: `
           <div>
@@ -872,14 +872,126 @@ if (!isIE9) {
         expect(vm.$el.children.length).toBe(0)
         vm.ok = true
       }).then(() => {
-        expect(vm.$el.children[0].className).toBe('test v-enter v-enter-active')
+        expect(vm.$el.children[0].className).toBe('test')
+      }).then(done)
+    })
+
+    it('transition with appear inside child component with v-if', done => {
+      const vm = new Vue({
+        template: `
+          <div>
+            <test v-if="ok" class="test"></test>
+          </div>
+        `,
+        data: { ok: true },
+        components: {
+          test: {
+            template: `
+              <transition appear
+                appear-class="test-appear"
+                appear-to-class="test-appear-to"
+                appear-active-class="test-appear-active">
+                <div>foo</div>
+              </transition>
+            `
+          }
+        }
+      }).$mount(el)
+
+      waitForUpdate(() => {
+        expect(vm.$el.children[0].className).toBe('test test-appear test-appear-active')
       }).thenWaitFor(nextFrame).then(() => {
-        expect(vm.$el.children[0].className).toBe('test v-enter-active v-enter-to')
+        expect(vm.$el.children[0].className).toBe('test test-appear-active test-appear-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children[0].className).toBe('test')
+        vm.ok = false
+      }).then(() => {
+        expect(vm.$el.children[0].className).toBe('test v-leave v-leave-active')
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test v-leave-active v-leave-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children.length).toBe(0)
+      }).then(done)
+    })
+
+    it('transition inside nested child component with v-if', done => {
+      const vm = new Vue({
+        template: `
+          <div>
+            <foo v-if="ok" class="test"></foo>
+          </div>
+        `,
+        data: { ok: true },
+        components: {
+          foo: {
+            template: '<bar></bar>',
+            components: {
+              bar: {
+                template: '<transition><div>foo</div></transition>'
+              }
+            }
+          }
+        }
+      }).$mount(el)
+
+      // should not apply transition on initial render by default
+      expect(vm.$el.innerHTML).toBe('<div class="test">foo</div>')
+      vm.ok = false
+      waitForUpdate(() => {
+        expect(vm.$el.children[0].className).toBe('test v-leave v-leave-active')
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test v-leave-active v-leave-to')
       }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children.length).toBe(0)
+        vm.ok = true
+      }).then(() => {
         expect(vm.$el.children[0].className).toBe('test')
       }).then(done)
     })
 
+    it('transition with appear inside nested child component with v-if', done => {
+      const vm = new Vue({
+        template: `
+          <div>
+            <foo v-if="ok" class="test"></foo>
+          </div>
+        `,
+        data: { ok: true },
+        components: {
+          foo: {
+            template: '<bar></bar>',
+            components: {
+              bar: {
+                template: `
+                  <transition appear
+                    appear-class="test-appear"
+                    appear-to-class="test-appear-to"
+                    appear-active-class="test-appear-active">
+                    <div>foo</div>
+                  </transition>
+                `
+              }
+            }
+          }
+        }
+      }).$mount(el)
+
+      waitForUpdate(() => {
+        expect(vm.$el.children[0].className).toBe('test test-appear test-appear-active')
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test test-appear-active test-appear-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children[0].className).toBe('test')
+        vm.ok = false
+      }).then(() => {
+        expect(vm.$el.children[0].className).toBe('test v-leave v-leave-active')
+      }).thenWaitFor(nextFrame).then(() => {
+        expect(vm.$el.children[0].className).toBe('test v-leave-active v-leave-to')
+      }).thenWaitFor(duration + buffer).then(() => {
+        expect(vm.$el.children.length).toBe(0)
+      }).then(done)
+    })
+
     it('custom transition higher-order component', done => {
       const vm = new Vue({
         template: '<div><my-transition><div v-if="ok" class="test">foo</div></my-transition></div>',

From f1bdd7ff9d1fc86f7a8ad8d5cb6d9abc7b2e47f3 Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Thu, 14 Mar 2019 15:47:51 +0800
Subject: [PATCH 865/911] fix(compiler): whitespace: 'condense' should honor
 pre tag as well (#9660)

---
 src/compiler/parser/index.js              |  2 +-
 test/unit/modules/compiler/parser.spec.js | 49 ++++++++++++++++++++---
 2 files changed, 45 insertions(+), 6 deletions(-)

diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index 0689eb873dd..fb258752179 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -351,7 +351,7 @@ export function parse (
         text = preserveWhitespace ? ' ' : ''
       }
       if (text) {
-        if (whitespaceOption === 'condense') {
+        if (!inPre && whitespaceOption === 'condense') {
           // condense consecutive whitespaces into single space
           text = text.replace(whitespaceRE, ' ')
         }
diff --git a/test/unit/modules/compiler/parser.spec.js b/test/unit/modules/compiler/parser.spec.js
index 13f1c0d389d..d6521bbf625 100644
--- a/test/unit/modules/compiler/parser.spec.js
+++ b/test/unit/modules/compiler/parser.spec.js
@@ -820,12 +820,14 @@ describe('parser', () => {
     expect(ast.children[3].children[0].text).toBe('.\n  Have fun!\n')
   })
 
+  const condenseOptions = extend({
+    whitespace: 'condense',
+    // should be ignored when whitespace is specified
+    preserveWhitespace: false
+  }, baseOptions)
+
   it(`whitespace: 'condense'`, () => {
-    const options = extend({
-      whitespace: 'condense',
-      // should be ignored when whitespace is specified
-      preserveWhitespace: false
-    }, baseOptions)
+    const options = extend({}, condenseOptions)
     const ast = parse('<p>\n  Welcome to <b>Vue.js</b>    <i>world</i>  \n  <span>.\n  Have fun!\n</span></p>', options)
     expect(ast.tag).toBe('p')
     expect(ast.children.length).toBe(5)
@@ -842,4 +844,41 @@ describe('parser', () => {
     expect(ast.children[4].tag).toBe('span')
     expect(ast.children[4].children[0].text).toBe('. Have fun! ')
   })
+
+  it(`preserve whitespace in <pre> tag with whitespace: 'condense'`, function () {
+    const options = extend({}, condenseOptions)
+    const ast = parse('<pre><code>  \n<span>hi</span>\n  </code><span> </span></pre>', options)
+    const code = ast.children[0]
+    expect(code.children[0].type).toBe(3)
+    expect(code.children[0].text).toBe('  \n')
+    expect(code.children[2].type).toBe(3)
+    expect(code.children[2].text).toBe('\n  ')
+
+    const span = ast.children[1]
+    expect(span.children[0].type).toBe(3)
+    expect(span.children[0].text).toBe(' ')
+  })
+
+  it(`ignore the first newline in <pre> tag with whitespace: 'condense'`, function () {
+    const options = extend({}, condenseOptions)
+    const ast = parse('<div><pre>\nabc</pre>\ndef<pre>\n\nabc</pre></div>', options)
+    const pre = ast.children[0]
+    expect(pre.children[0].type).toBe(3)
+    expect(pre.children[0].text).toBe('abc')
+    const text = ast.children[1]
+    expect(text.type).toBe(3)
+    expect(text.text).toBe(' def')
+    const pre2 = ast.children[2]
+    expect(pre2.children[0].type).toBe(3)
+    expect(pre2.children[0].text).toBe('\nabc')
+  })
+
+  it(`keep first newline after unary tag in <pre> with whitespace: 'condense'`, () => {
+    const options = extend({}, condenseOptions)
+    const ast = parse('<pre>abc<input>\ndef</pre>', options)
+    expect(ast.children[1].type).toBe(1)
+    expect(ast.children[1].tag).toBe('input')
+    expect(ast.children[2].type).toBe(3)
+    expect(ast.children[2].text).toBe('\ndef')
+  })
 })

From 5bffed03f14a6d15fc5718335f9697cab0c261ab Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Mar 2019 17:02:00 +0800
Subject: [PATCH 866/911] build: build 2.6.9

---
 dist/vue.common.dev.js                      | 54 +++++++++++++--------
 dist/vue.common.prod.js                     |  4 +-
 dist/vue.esm.browser.js                     | 54 +++++++++++++--------
 dist/vue.esm.browser.min.js                 |  4 +-
 dist/vue.esm.js                             | 54 +++++++++++++--------
 dist/vue.js                                 | 54 +++++++++++++--------
 dist/vue.min.js                             |  4 +-
 dist/vue.runtime.common.dev.js              | 52 ++++++++++++--------
 dist/vue.runtime.common.prod.js             |  4 +-
 dist/vue.runtime.esm.js                     | 52 ++++++++++++--------
 dist/vue.runtime.js                         | 52 ++++++++++++--------
 dist/vue.runtime.min.js                     |  4 +-
 packages/vue-server-renderer/basic.js       | 44 +++++++++--------
 packages/vue-server-renderer/build.dev.js   | 48 +++++++++---------
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   |  2 +-
 packages/vue-template-compiler/build.js     |  2 +-
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 300 insertions(+), 194 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 8263f8ca891..11365f56471 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1857,10 +1857,11 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (res && !res._isVue && isPromise(res)) {
+    if (res && !res._isVue && isPromise(res) && !res._handled) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       // issue #9511
-      // reassign to res to avoid catch triggering multiple times when nested calls
-      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // avoid catch triggering multiple times when nested calls
+      res._handled = true;
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2544,6 +2545,7 @@ function normalizeScopedSlots (
 ) {
   var res;
   var isStable = slots ? !!slots.$stable : true;
+  var hasNormalSlots = Object.keys(normalSlots).length > 0;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -2555,7 +2557,8 @@ function normalizeScopedSlots (
     prevSlots &&
     prevSlots !== emptyObject &&
     key === prevSlots.$key &&
-    Object.keys(normalSlots).length === 0
+    !hasNormalSlots &&
+    !prevSlots.$hasNormal
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
@@ -2581,6 +2584,7 @@ function normalizeScopedSlots (
   }
   def(res, '$stable', isStable);
   def(res, '$key', key);
+  def(res, '$hasNormal', hasNormalSlots);
   return res
 }
 
@@ -2590,8 +2594,10 @@ function normalizeScopedSlot(normalSlots, key, fn) {
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
-    return res && res.length === 0
-      ? undefined
+    return res && (
+      res.length === 0 ||
+      (res.length === 1 && res[0].isComment) // #9658
+    ) ? undefined
       : res
   };
   // this is a slot using the new v-slot syntax without scope. although it is
@@ -2771,12 +2777,13 @@ function bindObjectProps (
             : data.attrs || (data.attrs = {});
         }
         var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
+        var hyphenatedKey = hyphenate(key);
+        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
+            on[("update:" + key)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -3611,7 +3618,7 @@ function resolveAsyncComponent (
   }
 
   var owner = currentRenderingInstance;
-  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
     // already pending
     factory.owners.push(owner);
   }
@@ -3620,7 +3627,7 @@ function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (!isDef(factory.owners)) {
+  if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
     var sync = true
 
@@ -4235,10 +4242,15 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
+if (
+  inBrowser &&
+  window.performance &&
+  typeof performance.now === 'function' &&
+  document.createEvent('Event').timeStamp <= performance.now()
+) {
+  // if the event timestamp is bigger than the hi-res timestamp
+  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+  // and we need to use the lo-res version for event listeners as well.
   getNow = function () { return performance.now(); };
 }
 
@@ -5404,7 +5416,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.8';
+Vue.version = '2.6.9';
 
 /*  */
 
@@ -7496,8 +7508,10 @@ function add$1 (
         e.target === e.currentTarget ||
         // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
-        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-        e.timeStamp === 0 ||
+        // bail for environments that have buggy event.timeStamp implementations
+        // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+        // #9681 QtWebEngine event.timeStamp is negative value
+        e.timeStamp <= 0 ||
         // #9448 bail if event is fired in another document in a multi-page
         // electron/nw.js app, since event.timeStamp will be using a different
         // starting reference
@@ -8115,8 +8129,8 @@ function enter (vnode, toggleDisplay) {
   var context = activeInstance;
   var transitionNode = activeInstance.$vnode;
   while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
     context = transitionNode.context;
+    transitionNode = transitionNode.parent;
   }
 
   var isAppear = !context._isMounted || !vnode.isRootInsert;
@@ -9823,7 +9837,7 @@ function parse (
         text = preserveWhitespace ? ' ' : '';
       }
       if (text) {
-        if (whitespaceOption === 'condense') {
+        if (!inPre && whitespaceOption === 'condense') {
           // condense consecutive whitespaces into single space
           text = text.replace(whitespaceRE$1, ' ');
         }
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index bf43113ba16..71172736328 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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a=Da(e[o]);e[o]&&e[o].dynamic?i+=o+","+a+",":r+='"'+o+'":'+a+","}return r="{"+r.slice(0,-1)+"}",i?n+"_d("+r+",["+i.slice(0,-1)+"])":n+r}function Da(e){if(!e)return"function(){}";if(Array.isArray(e))return"["+e.map(function(e){return Da(e)}).join(",")+"]";var t=Oa.test(e.value),n=ka.test(e.value),r=Oa.test(e.value.replace(Aa,""));if(e.modifiers){var i="",o="",a=[];for(var s in e.modifiers)if(Na[s])o+=Na[s],Sa[s]&&a.push(s);else if("exact"===s){var c=e.modifiers;o+=Ea(["ctrl","shift","alt","meta"].filter(function(e){return!c[e]}).map(function(e){return"$event."+e+"Key"}).join("||"))}else a.push(s);return a.length&&(i+=function(e){return"if(!$event.type.indexOf('key')&&"+e.map(La).join("&&")+")return null;"}(a)),o&&(i+=o),"function($event){"+i+(t?"return "+e.value+"($event)":n?"return ("+e.value+")($event)":r?"return "+e.value:e.value)+"}"}return t||n?e.value:"function($event){"+(r?"return "+e.value:e.value)+"}"}function La(e){var t=parseInt(e,10);if(t)return"$event.keyCode!=="+t;var 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\ No newline at end of file
diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 2c986ba764c..01434348e0c 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1888,10 +1888,11 @@ function invokeWithErrorHandling (
   let res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (res && !res._isVue && isPromise(res)) {
+    if (res && !res._isVue && isPromise(res) && !res._handled) {
+      res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
       // issue #9511
-      // reassign to res to avoid catch triggering multiple times when nested calls
-      res = res.catch(e => handleError(e, vm, info + ` (Promise/async)`));
+      // avoid catch triggering multiple times when nested calls
+      res._handled = true;
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2572,6 +2573,7 @@ function normalizeScopedSlots (
 ) {
   let res;
   const isStable = slots ? !!slots.$stable : true;
+  const hasNormalSlots = Object.keys(normalSlots).length > 0;
   const key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -2583,7 +2585,8 @@ function normalizeScopedSlots (
     prevSlots &&
     prevSlots !== emptyObject &&
     key === prevSlots.$key &&
-    Object.keys(normalSlots).length === 0
+    !hasNormalSlots &&
+    !prevSlots.$hasNormal
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
@@ -2609,6 +2612,7 @@ function normalizeScopedSlots (
   }
   def(res, '$stable', isStable);
   def(res, '$key', key);
+  def(res, '$hasNormal', hasNormalSlots);
   return res
 }
 
@@ -2618,8 +2622,10 @@ function normalizeScopedSlot(normalSlots, key, fn) {
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
-    return res && res.length === 0
-      ? undefined
+    return res && (
+      res.length === 0 ||
+      (res.length === 1 && res[0].isComment) // #9658
+    ) ? undefined
       : res
   };
   // this is a slot using the new v-slot syntax without scope. although it is
@@ -2799,12 +2805,13 @@ function bindObjectProps (
             : data.attrs || (data.attrs = {});
         }
         const camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
+        const hyphenatedKey = hyphenate(key);
+        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             const on = data.on || (data.on = {});
-            on[`update:${camelizedKey}`] = function ($event) {
+            on[`update:${key}`] = function ($event) {
               value[key] = $event;
             };
           }
@@ -3632,7 +3639,7 @@ function resolveAsyncComponent (
   }
 
   const owner = currentRenderingInstance;
-  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
     // already pending
     factory.owners.push(owner);
   }
@@ -3641,7 +3648,7 @@ function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (!isDef(factory.owners)) {
+  if (owner && !isDef(factory.owners)) {
     const owners = factory.owners = [owner];
     let sync = true
 
@@ -4256,10 +4263,15 @@ let getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
+if (
+  inBrowser &&
+  window.performance &&
+  typeof performance.now === 'function' &&
+  document.createEvent('Event').timeStamp <= performance.now()
+) {
+  // if the event timestamp is bigger than the hi-res timestamp
+  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+  // and we need to use the lo-res version for event listeners as well.
   getNow = () => performance.now();
 }
 
@@ -5435,7 +5447,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.8';
+Vue.version = '2.6.9';
 
 /*  */
 
@@ -7519,8 +7531,10 @@ function add$1 (
         e.target === e.currentTarget ||
         // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
-        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-        e.timeStamp === 0 ||
+        // bail for environments that have buggy event.timeStamp implementations
+        // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+        // #9681 QtWebEngine event.timeStamp is negative value
+        e.timeStamp <= 0 ||
         // #9448 bail if event is fired in another document in a multi-page
         // electron/nw.js app, since event.timeStamp will be using a different
         // starting reference
@@ -8137,8 +8151,8 @@ function enter (vnode, toggleDisplay) {
   let context = activeInstance;
   let transitionNode = activeInstance.$vnode;
   while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
     context = transitionNode.context;
+    transitionNode = transitionNode.parent;
   }
 
   const isAppear = !context._isMounted || !vnode.isRootInsert;
@@ -9840,7 +9854,7 @@ function parse (
         text = preserveWhitespace ? ' ' : '';
       }
       if (text) {
-        if (whitespaceOption === 'condense') {
+        if (!inPre && whitespaceOption === 'condense') {
           // condense consecutive whitespaces into single space
           text = text.replace(whitespaceRE$1, ' ');
         }
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 6cd0a17710b..6dcf7b2aa55 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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n=Si(t[e]);t[e]&&t[e].dynamic?r+=`${e},${n},`:o+=`"${e}":${n},`}return o=`{${o.slice(0,-1)}}`,r?n+`_d(${o},[${r.slice(0,-1)}])`:n+o}function Si(t){if(!t)return"function(){}";if(Array.isArray(t))return`[${t.map(t=>Si(t)).join(",")}]`;const e=wi.test(t.value),n=_i.test(t.value),o=wi.test(t.value.replace(bi,""));if(t.modifiers){let r="",s="";const i=[];for(const e in t.modifiers)if(Ai[e])s+=Ai[e],Ci[e]&&i.push(e);else if("exact"===e){const e=t.modifiers;s+=ki(["ctrl","shift","alt","meta"].filter(t=>!e[t]).map(t=>`$event.${t}Key`).join("||"))}else i.push(e);return i.length&&(r+=function(t){return"if(!$event.type.indexOf('key')&&"+`${t.map(Ti).join("&&")})return null;`}(i)),s&&(r+=s),`function($event){${r}${e?`return ${t.value}($event)`:n?`return (${t.value})($event)`:o?`return ${t.value}`:t.value}}`}return e||n?t.value:`function($event){${o?`return ${t.value}`:t.value}}`}function Ti(t){const e=parseInt(t,10);if(e)return`$event.keyCode!==${e}`;const n=Ci[t],o=xi[t];return"_k($event.keyCode,"+`${JSON.stringify(t)},`+`${JSON.stringify(n)},`+"$event.key,"+`${JSON.stringify(o)}`+")"}var Ei={on:function(t,e){t.wrapListeners=(t=>`_g(${t},${e.value})`)},bind:function(t,e){t.wrapData=(n=>`_b(${n},'${t.tag}',${e.value},${e.modifiers&&e.modifiers.prop?"true":"false"}${e.modifiers&&e.modifiers.sync?",true":""})`)},cloak:S};class Ni{constructor(t){this.options=t,this.warn=t.warn||go,this.transforms=vo(t.modules,"transformCode"),this.dataGenFns=vo(t.modules,"genData"),this.directives=A(A({},Ei),t.directives);const e=t.isReservedTag||T;this.maybeComponent=(t=>!!t.component||!e(t.tag)),this.onceId=0,this.staticRenderFns=[],this.pre=!1}}function ji(t,e){const n=new Ni(e);return{render:`with(this){return ${t?Di(t,n):'_c("div")'}}`,staticRenderFns:n.staticRenderFns}}function Di(t,e){if(t.parent&&(t.pre=t.pre||t.parent.pre),t.staticRoot&&!t.staticProcessed)return Li(t,e);if(t.once&&!t.onceProcessed)return Mi(t,e);if(t.for&&!t.forProcessed)return Fi(t,e);if(t.if&&!t.ifProcessed)return Ii(t,e);if("template"!==t.tag||t.slotTarget||e.pre){if("slot"===t.tag)return function(t,e){const n=t.slotName||'"default"',o=Bi(t,e);let r=`_t(${n}${o?`,${o}`:""}`;const s=t.attrs||t.dynamicAttrs?Vi((t.attrs||[]).concat(t.dynamicAttrs||[]).map(t=>({name:_(t.name),value:t.value,dynamic:t.dynamic}))):null,i=t.attrsMap["v-bind"];!s&&!i||o||(r+=",null");s&&(r+=`,${s}`);i&&(r+=`${s?"":",null"},${i}`);return r+")"}(t,e);{let n;if(t.component)n=function(t,e,n){const o=e.inlineTemplate?null:Bi(e,n,!0);return`_c(${t},${Pi(e,n)}${o?`,${o}`:""})`}(t.component,t,e);else{let o;(!t.plain||t.pre&&e.maybeComponent(t))&&(o=Pi(t,e));const r=t.inlineTemplate?null:Bi(t,e,!0);n=`_c('${t.tag}'${o?`,${o}`:""}${r?`,${r}`:""})`}for(let o=0;o<e.transforms.length;o++)n=e.transforms[o](t,n);return n}}return Bi(t,e)||"void 0"}function Li(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${Di(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Mi(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ii(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${Di(t,e)},${e.onceId++},${n})`:Di(t,e)}return Li(t,e)}function Ii(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Mi(t,n):Di(t,n)}}(t.ifConditions.slice(),e,n,o)}function Fi(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||Di)(t,e)}`+"})"}function Pi(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Vi(t.attrs)},`),t.props&&(n+=`domProps:${Vi(t.props)},`),t.events&&(n+=`${Oi(t.events,!1)},`),t.nativeEvents&&(n+=`${Oi(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e,n){let o=t.for||Object.keys(e).some(t=>{const n=e[t];return n.slotTargetDynamic||n.if||n.for||Ri(n)}),r=!!t.if;if(!o){let e=t.parent;for(;e;){if(e.slotScope&&e.slotScope!==Ws||e.for){o=!0;break}e.if&&(r=!0),e=e.parent}}const s=Object.keys(e).map(t=>Hi(e[t],n)).join(",");return`scopedSlots:_u([${s}]${o?",null,true":""}${!o&&r?`,null,false,${function(t){let e=5381,n=t.length;for(;n;)e=33*e^t.charCodeAt(--n);return e>>>0}(s)}`:""})`}(t,t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(n&&1===n.type){const t=ji(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Vi(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Ri(t){return 1===t.type&&("slot"===t.tag||t.children.some(Ri))}function Hi(t,e){const n=t.attrsMap["slot-scope"];if(t.if&&!t.ifProcessed&&!n)return Ii(t,e,Hi,"null");if(t.for&&!t.forProcessed)return Fi(t,e,Hi);const o=t.slotScope===Ws?"":String(t.slotScope),r=`function(${o}){`+`return ${"template"===t.tag?t.if&&n?`(${t.if})?${Bi(t,e)||"undefined"}:undefined`:Bi(t,e)||"undefined":Di(t,e)}}`,s=o?"":",proxy:true";return`{key:${t.slotTarget||'"default"'},fn:${r}${s}}`}function Bi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||Di)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Ui(r)||r.ifConditions&&r.ifConditions.some(t=>Ui(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||zi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Ui(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function zi(t,e){return 1===t.type?Di(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Ki(JSON.stringify(n.text))})`;var n,o}function Vi(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Ki(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Ki(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Ji(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function qi(t){const e=Object.create(null);return function(n,o,r){(o=A({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Ji(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Ji(t,c)),e[s]=a}}const Wi=(Zi=function(t,e){const n=ri(t.trim(),e);!1!==e.optimize&&$i(n,e);const o=ji(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=A(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=Zi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:qi(e)}});var Zi;const{compile:Gi,compileToFunctions:Xi}=Wi(mi);let Yi;function Qi(t){return(Yi=Yi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Yi.innerHTML.indexOf("&#10;")>0}const ta=!!z&&Qi(!1),ea=!!z&&Qi(!0),na=v(t=>{const e=Jn(t);return e&&e.innerHTML}),oa=yn.prototype.$mount;yn.prototype.$mount=function(t,e){if((t=t&&Jn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=na(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Xi(e,{outputSourceRange:!1,shouldDecodeNewlines:ta,shouldDecodeNewlinesForHref:ea,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return oa.call(this,t,e)},yn.compile=Xi;export default yn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index ba40c3de1e8..134d6660c07 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1861,10 +1861,11 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (res && !res._isVue && isPromise(res)) {
+    if (res && !res._isVue && isPromise(res) && !res._handled) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       // issue #9511
-      // reassign to res to avoid catch triggering multiple times when nested calls
-      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // avoid catch triggering multiple times when nested calls
+      res._handled = true;
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2550,6 +2551,7 @@ function normalizeScopedSlots (
 ) {
   var res;
   var isStable = slots ? !!slots.$stable : true;
+  var hasNormalSlots = Object.keys(normalSlots).length > 0;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -2561,7 +2563,8 @@ function normalizeScopedSlots (
     prevSlots &&
     prevSlots !== emptyObject &&
     key === prevSlots.$key &&
-    Object.keys(normalSlots).length === 0
+    !hasNormalSlots &&
+    !prevSlots.$hasNormal
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
@@ -2587,6 +2590,7 @@ function normalizeScopedSlots (
   }
   def(res, '$stable', isStable);
   def(res, '$key', key);
+  def(res, '$hasNormal', hasNormalSlots);
   return res
 }
 
@@ -2596,8 +2600,10 @@ function normalizeScopedSlot(normalSlots, key, fn) {
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
-    return res && res.length === 0
-      ? undefined
+    return res && (
+      res.length === 0 ||
+      (res.length === 1 && res[0].isComment) // #9658
+    ) ? undefined
       : res
   };
   // this is a slot using the new v-slot syntax without scope. although it is
@@ -2777,12 +2783,13 @@ function bindObjectProps (
             : data.attrs || (data.attrs = {});
         }
         var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
+        var hyphenatedKey = hyphenate(key);
+        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
+            on[("update:" + key)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -3621,7 +3628,7 @@ function resolveAsyncComponent (
   }
 
   var owner = currentRenderingInstance;
-  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
     // already pending
     factory.owners.push(owner);
   }
@@ -3630,7 +3637,7 @@ function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (!isDef(factory.owners)) {
+  if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
     var sync = true
 
@@ -4247,10 +4254,15 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
+if (
+  inBrowser &&
+  window.performance &&
+  typeof performance.now === 'function' &&
+  document.createEvent('Event').timeStamp <= performance.now()
+) {
+  // if the event timestamp is bigger than the hi-res timestamp
+  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+  // and we need to use the lo-res version for event listeners as well.
   getNow = function () { return performance.now(); };
 }
 
@@ -5424,7 +5436,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.8';
+Vue.version = '2.6.9';
 
 /*  */
 
@@ -7518,8 +7530,10 @@ function add$1 (
         e.target === e.currentTarget ||
         // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
-        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-        e.timeStamp === 0 ||
+        // bail for environments that have buggy event.timeStamp implementations
+        // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+        // #9681 QtWebEngine event.timeStamp is negative value
+        e.timeStamp <= 0 ||
         // #9448 bail if event is fired in another document in a multi-page
         // electron/nw.js app, since event.timeStamp will be using a different
         // starting reference
@@ -8137,8 +8151,8 @@ function enter (vnode, toggleDisplay) {
   var context = activeInstance;
   var transitionNode = activeInstance.$vnode;
   while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
     context = transitionNode.context;
+    transitionNode = transitionNode.parent;
   }
 
   var isAppear = !context._isMounted || !vnode.isRootInsert;
@@ -9852,7 +9866,7 @@ function parse (
         text = preserveWhitespace ? ' ' : '';
       }
       if (text) {
-        if (whitespaceOption === 'condense') {
+        if (!inPre && whitespaceOption === 'condense') {
           // condense consecutive whitespaces into single space
           text = text.replace(whitespaceRE$1, ' ');
         }
diff --git a/dist/vue.js b/dist/vue.js
index 75140b11904..31ca2426a98 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1861,10 +1861,11 @@
     var res;
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
-      if (res && !res._isVue && isPromise(res)) {
+      if (res && !res._isVue && isPromise(res) && !res._handled) {
+        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
         // issue #9511
-        // reassign to res to avoid catch triggering multiple times when nested calls
-        res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+        // avoid catch triggering multiple times when nested calls
+        res._handled = true;
       }
     } catch (e) {
       handleError(e, vm, info);
@@ -2548,6 +2549,7 @@
   ) {
     var res;
     var isStable = slots ? !!slots.$stable : true;
+    var hasNormalSlots = Object.keys(normalSlots).length > 0;
     var key = slots && slots.$key;
     if (!slots) {
       res = {};
@@ -2559,7 +2561,8 @@
       prevSlots &&
       prevSlots !== emptyObject &&
       key === prevSlots.$key &&
-      Object.keys(normalSlots).length === 0
+      !hasNormalSlots &&
+      !prevSlots.$hasNormal
     ) {
       // fast path 2: stable scoped slots w/ no normal slots to proxy,
       // only need to normalize once
@@ -2585,6 +2588,7 @@
     }
     def(res, '$stable', isStable);
     def(res, '$key', key);
+    def(res, '$hasNormal', hasNormalSlots);
     return res
   }
 
@@ -2594,8 +2598,10 @@
       res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res);
-      return res && res.length === 0
-        ? undefined
+      return res && (
+        res.length === 0 ||
+        (res.length === 1 && res[0].isComment) // #9658
+      ) ? undefined
         : res
     };
     // this is a slot using the new v-slot syntax without scope. although it is
@@ -2775,12 +2781,13 @@
               : data.attrs || (data.attrs = {});
           }
           var camelizedKey = camelize(key);
-          if (!(key in hash) && !(camelizedKey in hash)) {
+          var hyphenatedKey = hyphenate(key);
+          if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
             hash[key] = value[key];
 
             if (isSync) {
               var on = data.on || (data.on = {});
-              on[("update:" + camelizedKey)] = function ($event) {
+              on[("update:" + key)] = function ($event) {
                 value[key] = $event;
               };
             }
@@ -3615,7 +3622,7 @@
     }
 
     var owner = currentRenderingInstance;
-    if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
       // already pending
       factory.owners.push(owner);
     }
@@ -3624,7 +3631,7 @@
       return factory.loadingComp
     }
 
-    if (!isDef(factory.owners)) {
+    if (owner && !isDef(factory.owners)) {
       var owners = factory.owners = [owner];
       var sync = true
 
@@ -4239,10 +4246,15 @@
   // timestamp can either be hi-res (relative to page load) or low-res
   // (relative to UNIX epoch), so in order to compare time we have to use the
   // same timestamp type when saving the flush timestamp.
-  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-    // if the low-res timestamp which is bigger than the event timestamp
-    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-    // and we need to use the hi-res version for event listeners as well.
+  if (
+    inBrowser &&
+    window.performance &&
+    typeof performance.now === 'function' &&
+    document.createEvent('Event').timeStamp <= performance.now()
+  ) {
+    // if the event timestamp is bigger than the hi-res timestamp
+    // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+    // and we need to use the lo-res version for event listeners as well.
     getNow = function () { return performance.now(); };
   }
 
@@ -5408,7 +5420,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.8';
+  Vue.version = '2.6.9';
 
   /*  */
 
@@ -7500,8 +7512,10 @@
           e.target === e.currentTarget ||
           // event is fired after handler attachment
           e.timeStamp >= attachedTimestamp ||
-          // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-          e.timeStamp === 0 ||
+          // bail for environments that have buggy event.timeStamp implementations
+          // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+          // #9681 QtWebEngine event.timeStamp is negative value
+          e.timeStamp <= 0 ||
           // #9448 bail if event is fired in another document in a multi-page
           // electron/nw.js app, since event.timeStamp will be using a different
           // starting reference
@@ -8119,8 +8133,8 @@
     var context = activeInstance;
     var transitionNode = activeInstance.$vnode;
     while (transitionNode && transitionNode.parent) {
-      transitionNode = transitionNode.parent;
       context = transitionNode.context;
+      transitionNode = transitionNode.parent;
     }
 
     var isAppear = !context._isMounted || !vnode.isRootInsert;
@@ -9827,7 +9841,7 @@
           text = preserveWhitespace ? ' ' : '';
         }
         if (text) {
-          if (whitespaceOption === 'condense') {
+          if (!inPre && whitespaceOption === 'condense') {
             // condense consecutive whitespaces into single space
             text = text.replace(whitespaceRE$1, ' ');
           }
diff --git a/dist/vue.min.js b/dist/vue.min.js
index e56972bd3a5..bc5a7f4770f 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index dc85bd7706e..1aeba18fa84 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1848,10 +1848,11 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (res && !res._isVue && isPromise(res)) {
+    if (res && !res._isVue && isPromise(res) && !res._handled) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       // issue #9511
-      // reassign to res to avoid catch triggering multiple times when nested calls
-      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // avoid catch triggering multiple times when nested calls
+      res._handled = true;
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2535,6 +2536,7 @@ function normalizeScopedSlots (
 ) {
   var res;
   var isStable = slots ? !!slots.$stable : true;
+  var hasNormalSlots = Object.keys(normalSlots).length > 0;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -2546,7 +2548,8 @@ function normalizeScopedSlots (
     prevSlots &&
     prevSlots !== emptyObject &&
     key === prevSlots.$key &&
-    Object.keys(normalSlots).length === 0
+    !hasNormalSlots &&
+    !prevSlots.$hasNormal
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
@@ -2572,6 +2575,7 @@ function normalizeScopedSlots (
   }
   def(res, '$stable', isStable);
   def(res, '$key', key);
+  def(res, '$hasNormal', hasNormalSlots);
   return res
 }
 
@@ -2581,8 +2585,10 @@ function normalizeScopedSlot(normalSlots, key, fn) {
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
-    return res && res.length === 0
-      ? undefined
+    return res && (
+      res.length === 0 ||
+      (res.length === 1 && res[0].isComment) // #9658
+    ) ? undefined
       : res
   };
   // this is a slot using the new v-slot syntax without scope. although it is
@@ -2762,12 +2768,13 @@ function bindObjectProps (
             : data.attrs || (data.attrs = {});
         }
         var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
+        var hyphenatedKey = hyphenate(key);
+        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
+            on[("update:" + key)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -3602,7 +3609,7 @@ function resolveAsyncComponent (
   }
 
   var owner = currentRenderingInstance;
-  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
     // already pending
     factory.owners.push(owner);
   }
@@ -3611,7 +3618,7 @@ function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (!isDef(factory.owners)) {
+  if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
     var sync = true
 
@@ -4226,10 +4233,15 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
+if (
+  inBrowser &&
+  window.performance &&
+  typeof performance.now === 'function' &&
+  document.createEvent('Event').timeStamp <= performance.now()
+) {
+  // if the event timestamp is bigger than the hi-res timestamp
+  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+  // and we need to use the lo-res version for event listeners as well.
   getNow = function () { return performance.now(); };
 }
 
@@ -5395,7 +5407,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.8';
+Vue.version = '2.6.9';
 
 /*  */
 
@@ -6848,8 +6860,10 @@ function add$1 (
         e.target === e.currentTarget ||
         // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
-        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-        e.timeStamp === 0 ||
+        // bail for environments that have buggy event.timeStamp implementations
+        // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+        // #9681 QtWebEngine event.timeStamp is negative value
+        e.timeStamp <= 0 ||
         // #9448 bail if event is fired in another document in a multi-page
         // electron/nw.js app, since event.timeStamp will be using a different
         // starting reference
@@ -7467,8 +7481,8 @@ function enter (vnode, toggleDisplay) {
   var context = activeInstance;
   var transitionNode = activeInstance.$vnode;
   while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
     context = transitionNode.context;
+    transitionNode = transitionNode.parent;
   }
 
   var isAppear = !context._isMounted || !vnode.isRootInsert;
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index 92cae064585..19409c7e522 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
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+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
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lo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){lo.componentUpdated(t,e,n)}):fo(t,e,n.context),t._vOptions=[].map.call(t.options,ho)):("textarea"===n.tag||qn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",mo),t.addEventListener("compositionend",yo),t.addEventListener("change",yo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){fo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,ho);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return vo(t,o)}):e.value!==e.oldValue&&vo(e.value,o))&&go(t,"change")}}};function fo(t,e,n){po(t,e,n),(W||K)&&setTimeout(function(){po(t,e,n)},0)}function po(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=T(r,ho(a))>-1,a.selected!==i&&(a.selected=i);else if(j(ho(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function vo(t,e){return e.every(function(e){return!j(e,t)})}function ho(t){return"_value"in t?t._value:t.value}function mo(t){t.target.composing=!0}function yo(t){t.target.composing&&(t.target.composing=!1,go(t.target,"input"))}function go(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function _o(t){return!t.componentInstance||t.data&&t.data.transition?t:_o(t.componentInstance._vnode)}var bo={model:lo,show:{bind:function(t,e,n){var r=e.value,o=(n=_o(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,oo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=_o(n)).data&&n.data.transition?(n.data.show=!0,r?oo(n,function(){t.style.display=t.__vOriginalDisplay}):io(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Co={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function wo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?wo(He(e.children)):t}function $o(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Ao(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var xo=function(t){return t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=$o(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function Eo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function jo(t){t.data.newPos=t.elm.getBoundingClientRect()}function To(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var Io={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=$o(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Eo),t.forEach(jo),t.forEach(To),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Br)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};_n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=zn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return Vn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(zn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,Io),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),module.exports=_n;
\ No newline at end of file
diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index f5acbc1c952..577d34739c7 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1852,10 +1852,11 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (res && !res._isVue && isPromise(res)) {
+    if (res && !res._isVue && isPromise(res) && !res._handled) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       // issue #9511
-      // reassign to res to avoid catch triggering multiple times when nested calls
-      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // avoid catch triggering multiple times when nested calls
+      res._handled = true;
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -2541,6 +2542,7 @@ function normalizeScopedSlots (
 ) {
   var res;
   var isStable = slots ? !!slots.$stable : true;
+  var hasNormalSlots = Object.keys(normalSlots).length > 0;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -2552,7 +2554,8 @@ function normalizeScopedSlots (
     prevSlots &&
     prevSlots !== emptyObject &&
     key === prevSlots.$key &&
-    Object.keys(normalSlots).length === 0
+    !hasNormalSlots &&
+    !prevSlots.$hasNormal
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
@@ -2578,6 +2581,7 @@ function normalizeScopedSlots (
   }
   def(res, '$stable', isStable);
   def(res, '$key', key);
+  def(res, '$hasNormal', hasNormalSlots);
   return res
 }
 
@@ -2587,8 +2591,10 @@ function normalizeScopedSlot(normalSlots, key, fn) {
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
-    return res && res.length === 0
-      ? undefined
+    return res && (
+      res.length === 0 ||
+      (res.length === 1 && res[0].isComment) // #9658
+    ) ? undefined
       : res
   };
   // this is a slot using the new v-slot syntax without scope. although it is
@@ -2768,12 +2774,13 @@ function bindObjectProps (
             : data.attrs || (data.attrs = {});
         }
         var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
+        var hyphenatedKey = hyphenate(key);
+        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
+            on[("update:" + key)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -3612,7 +3619,7 @@ function resolveAsyncComponent (
   }
 
   var owner = currentRenderingInstance;
-  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
     // already pending
     factory.owners.push(owner);
   }
@@ -3621,7 +3628,7 @@ function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (!isDef(factory.owners)) {
+  if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
     var sync = true
 
@@ -4238,10 +4245,15 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
+if (
+  inBrowser &&
+  window.performance &&
+  typeof performance.now === 'function' &&
+  document.createEvent('Event').timeStamp <= performance.now()
+) {
+  // if the event timestamp is bigger than the hi-res timestamp
+  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+  // and we need to use the lo-res version for event listeners as well.
   getNow = function () { return performance.now(); };
 }
 
@@ -5415,7 +5427,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.8';
+Vue.version = '2.6.9';
 
 /*  */
 
@@ -6870,8 +6882,10 @@ function add$1 (
         e.target === e.currentTarget ||
         // event is fired after handler attachment
         e.timeStamp >= attachedTimestamp ||
-        // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-        e.timeStamp === 0 ||
+        // bail for environments that have buggy event.timeStamp implementations
+        // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+        // #9681 QtWebEngine event.timeStamp is negative value
+        e.timeStamp <= 0 ||
         // #9448 bail if event is fired in another document in a multi-page
         // electron/nw.js app, since event.timeStamp will be using a different
         // starting reference
@@ -7489,8 +7503,8 @@ function enter (vnode, toggleDisplay) {
   var context = activeInstance;
   var transitionNode = activeInstance.$vnode;
   while (transitionNode && transitionNode.parent) {
-    transitionNode = transitionNode.parent;
     context = transitionNode.context;
+    transitionNode = transitionNode.parent;
   }
 
   var isAppear = !context._isMounted || !vnode.isRootInsert;
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index d02f0da1946..cd45077739a 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -1852,10 +1852,11 @@
     var res;
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
-      if (res && !res._isVue && isPromise(res)) {
+      if (res && !res._isVue && isPromise(res) && !res._handled) {
+        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
         // issue #9511
-        // reassign to res to avoid catch triggering multiple times when nested calls
-        res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+        // avoid catch triggering multiple times when nested calls
+        res._handled = true;
       }
     } catch (e) {
       handleError(e, vm, info);
@@ -2539,6 +2540,7 @@
   ) {
     var res;
     var isStable = slots ? !!slots.$stable : true;
+    var hasNormalSlots = Object.keys(normalSlots).length > 0;
     var key = slots && slots.$key;
     if (!slots) {
       res = {};
@@ -2550,7 +2552,8 @@
       prevSlots &&
       prevSlots !== emptyObject &&
       key === prevSlots.$key &&
-      Object.keys(normalSlots).length === 0
+      !hasNormalSlots &&
+      !prevSlots.$hasNormal
     ) {
       // fast path 2: stable scoped slots w/ no normal slots to proxy,
       // only need to normalize once
@@ -2576,6 +2579,7 @@
     }
     def(res, '$stable', isStable);
     def(res, '$key', key);
+    def(res, '$hasNormal', hasNormalSlots);
     return res
   }
 
@@ -2585,8 +2589,10 @@
       res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res);
-      return res && res.length === 0
-        ? undefined
+      return res && (
+        res.length === 0 ||
+        (res.length === 1 && res[0].isComment) // #9658
+      ) ? undefined
         : res
     };
     // this is a slot using the new v-slot syntax without scope. although it is
@@ -2766,12 +2772,13 @@
               : data.attrs || (data.attrs = {});
           }
           var camelizedKey = camelize(key);
-          if (!(key in hash) && !(camelizedKey in hash)) {
+          var hyphenatedKey = hyphenate(key);
+          if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
             hash[key] = value[key];
 
             if (isSync) {
               var on = data.on || (data.on = {});
-              on[("update:" + camelizedKey)] = function ($event) {
+              on[("update:" + key)] = function ($event) {
                 value[key] = $event;
               };
             }
@@ -3606,7 +3613,7 @@
     }
 
     var owner = currentRenderingInstance;
-    if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
       // already pending
       factory.owners.push(owner);
     }
@@ -3615,7 +3622,7 @@
       return factory.loadingComp
     }
 
-    if (!isDef(factory.owners)) {
+    if (owner && !isDef(factory.owners)) {
       var owners = factory.owners = [owner];
       var sync = true
 
@@ -4230,10 +4237,15 @@
   // timestamp can either be hi-res (relative to page load) or low-res
   // (relative to UNIX epoch), so in order to compare time we have to use the
   // same timestamp type when saving the flush timestamp.
-  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-    // if the low-res timestamp which is bigger than the event timestamp
-    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-    // and we need to use the hi-res version for event listeners as well.
+  if (
+    inBrowser &&
+    window.performance &&
+    typeof performance.now === 'function' &&
+    document.createEvent('Event').timeStamp <= performance.now()
+  ) {
+    // if the event timestamp is bigger than the hi-res timestamp
+    // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+    // and we need to use the lo-res version for event listeners as well.
     getNow = function () { return performance.now(); };
   }
 
@@ -5399,7 +5411,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.8';
+  Vue.version = '2.6.9';
 
   /*  */
 
@@ -6852,8 +6864,10 @@
           e.target === e.currentTarget ||
           // event is fired after handler attachment
           e.timeStamp >= attachedTimestamp ||
-          // #9462 bail for iOS 9 bug: event.timeStamp is 0 after history.pushState
-          e.timeStamp === 0 ||
+          // bail for environments that have buggy event.timeStamp implementations
+          // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState
+          // #9681 QtWebEngine event.timeStamp is negative value
+          e.timeStamp <= 0 ||
           // #9448 bail if event is fired in another document in a multi-page
           // electron/nw.js app, since event.timeStamp will be using a different
           // starting reference
@@ -7471,8 +7485,8 @@
     var context = activeInstance;
     var transitionNode = activeInstance.$vnode;
     while (transitionNode && transitionNode.parent) {
-      transitionNode = transitionNode.parent;
       context = transitionNode.context;
+      transitionNode = transitionNode.parent;
     }
 
     var isAppear = !context._isMounted || !vnode.isRootInsert;
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index cbc3a13550a..c33a633208e 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.8
+ * Vue.js v2.6.9
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return 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lo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){lo.componentUpdated(t,e,n)}):fo(t,e,n.context),t._vOptions=[].map.call(t.options,ho)):("textarea"===n.tag||qn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",mo),t.addEventListener("compositionend",yo),t.addEventListener("change",yo),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){fo(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,ho);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return vo(t,o)}):e.value!==e.oldValue&&vo(e.value,o))&&go(t,"change")}}};function fo(t,e,n){po(t,e,n),(W||K)&&setTimeout(function(){po(t,e,n)},0)}function po(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=T(r,ho(a))>-1,a.selected!==i&&(a.selected=i);else if(j(ho(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function vo(t,e){return e.every(function(e){return!j(e,t)})}function ho(t){return"_value"in t?t._value:t.value}function mo(t){t.target.composing=!0}function yo(t){t.target.composing&&(t.target.composing=!1,go(t.target,"input"))}function go(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function _o(t){return!t.componentInstance||t.data&&t.data.transition?t:_o(t.componentInstance._vnode)}var bo={model:lo,show:{bind:function(t,e,n){var r=e.value,o=(n=_o(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,oo(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=_o(n)).data&&n.data.transition?(n.data.show=!0,r?oo(n,function(){t.style.display=t.__vOriginalDisplay}):io(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},Co={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function wo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?wo(He(e.children)):t}function $o(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function Ao(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var xo=function(t){return t.tag||Ue(t)},Oo=function(t){return"show"===t.name},ko={name:"transition",props:Co,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(xo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return Ao(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=$o(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(Oo)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),Ao(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},So=x({tag:String,moveClass:String},Co);function Eo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function jo(t){t.data.newPos=t.elm.getBoundingClientRect()}function To(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete So.mode;var Io={Transition:ko,TransitionGroup:{props:So,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=$o(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(Eo),t.forEach(jo),t.forEach(To),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Jr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(qr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(qr,t),n._moveCb=null,Qr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var n=t.cloneNode();t._transitionClasses&&t._transitionClasses.forEach(function(t){Rr(n,t)}),Fr(n,e),n.style.display="none",this.$el.appendChild(n);var r=eo(n);return this.$el.removeChild(n),this._hasMove=r.hasTransform}}}};return _n.config.mustUseProp=function(t,e,n){return"value"===n&&Sn(t)&&"button"!==e||"selected"===n&&"option"===t||"checked"===n&&"input"===t||"muted"===n&&"video"===t},_n.config.isReservedTag=zn,_n.config.isReservedAttr=kn,_n.config.getTagNamespace=function(t){return Bn(t)?"svg":"math"===t?"math":void 0},_n.config.isUnknownElement=function(t){if(!H)return!0;if(zn(t))return!1;if(t=t.toLowerCase(),null!=Wn[t])return Wn[t];var e=document.createElement(t);return t.indexOf("-")>-1?Wn[t]=e.constructor===window.HTMLUnknownElement||e.constructor===window.HTMLElement:Wn[t]=/HTMLUnknownElement/.test(e.toString())},x(_n.options.directives,bo),x(_n.options.components,Io),_n.prototype.__patch__=H?uo:k,_n.prototype.$mount=function(t,e){return function(t,e,n){var r;return t.$el=e,t.$options.render||(t.$options.render=pt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new cn(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",_n)},0),_n});
\ No newline at end of file
diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index adfdf7122bd..292790ab374 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -2006,10 +2006,11 @@
     var res;
     try {
       res = args ? handler.apply(context, args) : handler.call(context);
-      if (res && !res._isVue && isPromise(res)) {
+      if (res && !res._isVue && isPromise(res) && !res._handled) {
+        res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
         // issue #9511
-        // reassign to res to avoid catch triggering multiple times when nested calls
-        res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+        // avoid catch triggering multiple times when nested calls
+        res._handled = true;
       }
     } catch (e) {
       handleError(e, vm, info);
@@ -4131,7 +4132,7 @@
           text = preserveWhitespace ? ' ' : '';
         }
         if (text) {
-          if (whitespaceOption === 'condense') {
+          if (!inPre && whitespaceOption === 'condense') {
             // condense consecutive whitespaces into single space
             text = text.replace(whitespaceRE, ' ');
           }
@@ -7335,12 +7336,13 @@
               : data.attrs || (data.attrs = {});
           }
           var camelizedKey = camelize(key);
-          if (!(key in hash) && !(camelizedKey in hash)) {
+          var hyphenatedKey = hyphenate(key);
+          if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
             hash[key] = value[key];
 
             if (isSync) {
               var on = data.on || (data.on = {});
-              on[("update:" + camelizedKey)] = function ($event) {
+              on[("update:" + key)] = function ($event) {
                 value[key] = $event;
               };
             }
@@ -7570,6 +7572,7 @@
   ) {
     var res;
     var isStable = slots ? !!slots.$stable : true;
+    var hasNormalSlots = Object.keys(normalSlots).length > 0;
     var key = slots && slots.$key;
     if (!slots) {
       res = {};
@@ -7581,7 +7584,8 @@
       prevSlots &&
       prevSlots !== emptyObject &&
       key === prevSlots.$key &&
-      Object.keys(normalSlots).length === 0
+      !hasNormalSlots &&
+      !prevSlots.$hasNormal
     ) {
       // fast path 2: stable scoped slots w/ no normal slots to proxy,
       // only need to normalize once
@@ -7607,6 +7611,7 @@
     }
     def(res, '$stable', isStable);
     def(res, '$key', key);
+    def(res, '$hasNormal', hasNormalSlots);
     return res
   }
 
@@ -7616,8 +7621,10 @@
       res = res && typeof res === 'object' && !Array.isArray(res)
         ? [res] // single vnode
         : normalizeChildren(res);
-      return res && res.length === 0
-        ? undefined
+      return res && (
+        res.length === 0 ||
+        (res.length === 1 && res[0].isComment) // #9658
+      ) ? undefined
         : res
     };
     // this is a slot using the new v-slot syntax without scope. although it is
@@ -7681,7 +7688,7 @@
     }
 
     var owner = currentRenderingInstance;
-    if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+    if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
       // already pending
       factory.owners.push(owner);
     }
@@ -7690,7 +7697,7 @@
       return factory.loadingComp
     }
 
-    if (!isDef(factory.owners)) {
+    if (owner && !isDef(factory.owners)) {
       var owners = factory.owners = [owner];
       var sync = true
 
@@ -7952,19 +7959,16 @@
 
   /*  */
 
-  // Async edge case fix requires storing an event listener's attach timestamp.
-  var getNow = Date.now;
-
   // Determine what event timestamp the browser is using. Annoyingly, the
   // timestamp can either be hi-res (relative to page load) or low-res
   // (relative to UNIX epoch), so in order to compare time we have to use the
   // same timestamp type when saving the flush timestamp.
-  if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-    // if the low-res timestamp which is bigger than the event timestamp
-    // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-    // and we need to use the hi-res version for event listeners as well.
-    getNow = function () { return performance.now(); };
-  }
+  if (
+    inBrowser &&
+    window.performance &&
+    typeof performance.now === 'function' &&
+    document.createEvent('Event').timeStamp <= performance.now()
+  ) ;
 
   /**
    * Queue a kept-alive component that was activated during patch.
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 0d8360dee56..3334583ada4 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -2008,10 +2008,11 @@ function invokeWithErrorHandling (
   var res;
   try {
     res = args ? handler.apply(context, args) : handler.call(context);
-    if (res && !res._isVue && isPromise(res)) {
+    if (res && !res._isVue && isPromise(res) && !res._handled) {
+      res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
       // issue #9511
-      // reassign to res to avoid catch triggering multiple times when nested calls
-      res = res.catch(function (e) { return handleError(e, vm, info + " (Promise/async)"); });
+      // avoid catch triggering multiple times when nested calls
+      res._handled = true;
     }
   } catch (e) {
     handleError(e, vm, info);
@@ -3881,7 +3882,7 @@ function parse (
         text = preserveWhitespace ? ' ' : '';
       }
       if (text) {
-        if (whitespaceOption === 'condense') {
+        if (!inPre && whitespaceOption === 'condense') {
           // condense consecutive whitespaces into single space
           text = text.replace(whitespaceRE, ' ');
         }
@@ -7085,12 +7086,13 @@ function bindObjectProps (
             : data.attrs || (data.attrs = {});
         }
         var camelizedKey = camelize(key);
-        if (!(key in hash) && !(camelizedKey in hash)) {
+        var hyphenatedKey = hyphenate(key);
+        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {
           hash[key] = value[key];
 
           if (isSync) {
             var on = data.on || (data.on = {});
-            on[("update:" + camelizedKey)] = function ($event) {
+            on[("update:" + key)] = function ($event) {
               value[key] = $event;
             };
           }
@@ -7320,6 +7322,7 @@ function normalizeScopedSlots (
 ) {
   var res;
   var isStable = slots ? !!slots.$stable : true;
+  var hasNormalSlots = Object.keys(normalSlots).length > 0;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -7331,7 +7334,8 @@ function normalizeScopedSlots (
     prevSlots &&
     prevSlots !== emptyObject &&
     key === prevSlots.$key &&
-    Object.keys(normalSlots).length === 0
+    !hasNormalSlots &&
+    !prevSlots.$hasNormal
   ) {
     // fast path 2: stable scoped slots w/ no normal slots to proxy,
     // only need to normalize once
@@ -7357,6 +7361,7 @@ function normalizeScopedSlots (
   }
   def(res, '$stable', isStable);
   def(res, '$key', key);
+  def(res, '$hasNormal', hasNormalSlots);
   return res
 }
 
@@ -7366,8 +7371,10 @@ function normalizeScopedSlot(normalSlots, key, fn) {
     res = res && typeof res === 'object' && !Array.isArray(res)
       ? [res] // single vnode
       : normalizeChildren(res);
-    return res && res.length === 0
-      ? undefined
+    return res && (
+      res.length === 0 ||
+      (res.length === 1 && res[0].isComment) // #9658
+    ) ? undefined
       : res
   };
   // this is a slot using the new v-slot syntax without scope. although it is
@@ -7431,7 +7438,7 @@ function resolveAsyncComponent (
   }
 
   var owner = currentRenderingInstance;
-  if (isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
+  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {
     // already pending
     factory.owners.push(owner);
   }
@@ -7440,7 +7447,7 @@ function resolveAsyncComponent (
     return factory.loadingComp
   }
 
-  if (!isDef(factory.owners)) {
+  if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
     var sync = true
 
@@ -7702,19 +7709,16 @@ function callHook (vm, hook) {
 
 /*  */
 
-// Async edge case fix requires storing an event listener's attach timestamp.
-var getNow = Date.now;
-
 // Determine what event timestamp the browser is using. Annoyingly, the
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser && getNow() > document.createEvent('Event').timeStamp) {
-  // if the low-res timestamp which is bigger than the event timestamp
-  // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
-  // and we need to use the hi-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
-}
+if (
+  inBrowser &&
+  window.performance &&
+  typeof performance.now === 'function' &&
+  document.createEvent('Event').timeStamp <= performance.now()
+) ;
 
 /**
  * Queue a kept-alive component that was activated during patch.
@@ -8803,8 +8807,8 @@ function mapIdToFile (id, clientManifest) {
   if (fileIndices) {
     fileIndices.forEach(function (index) {
       var file = clientManifest.all[index];
-      // only include async files or non-js assets
-      if (clientManifest.async.indexOf(file) > -1 || !(/\.js($|\?)/.test(file))) {
+      // only include async files or non-js, non-css assets
+      if (clientManifest.async.indexOf(file) > -1 || !(/\.(js|css)($|\?)/.test(file))) {
         files.push(file);
       }
     });
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index cfcb2ac222e..54b3b10e8fa 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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o=i._render();o.parent=e,r.renderStates.push({type:"Component",prevActive:n}),Qi(o,t,r)},o)}function no(e,t,r,n){return function(i,o,a,s){Vi=Object.create(null);var c=new _t({activeInstance:i,userContext:a,write:o,done:s,renderNode:Qi,isUnaryTag:r,modules:e,directives:t,cache:n});!function(e){if(!e._ssrNode){for(var t=e.constructor;t.super;)t=t.super;A(t.prototype,ti),t.FunctionalRenderContext&&A(t.FunctionalRenderContext.prototype,ti)}}(i),Xi(i);Gi(i,function(){Qi(i._render(),!0,c)},s)}}var io=function(e){return/\.js(\?[^.]+)?$/.test(e)};function oo(){var e,t;return{promise:new Promise(function(r,n){e=r,t=n}),cb:function(r,n){if(r)return t(r);e(n||"")}}}var ao=function(e){function t(t,r,n){e.call(this),this.started=!1,this.renderer=t,this.template=r,this.context=n||{},this.inject=t.inject}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype._transform=function(e,t,r){this.started||(this.emit("beforeStart"),this.start()),this.push(e),r()},t.prototype.start=function(){if(this.started=!0,this.push(this.template.head(this.context)),this.inject){this.context.head&&this.push(this.context.head);var e=this.renderer.renderResourceHints(this.context);e&&this.push(e);var t=this.renderer.renderStyles(this.context);t&&this.push(t)}this.push(this.template.neck(this.context))},t.prototype._flush=function(e){if(this.emit("beforeEnd"),this.inject){var t=this.renderer.renderState(this.context);t&&this.push(t);var r=this.renderer.renderScripts(this.context);r&&this.push(r)}this.push(this.template.tail(this.context)),e()},t}(require("stream").Transform),so=require("lodash.template"),co={escape:/{{([^{][\s\S]+?[^}])}}/g,interpolate:/{{{([\s\S]+?)}}}/g};function uo(e){var t=function(e){var t=new Map;return Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.(js|css)($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var lo=require("path"),fo=require("serialize-javascript"),po=function(e){this.options=e,this.inject=!1!==e.inject;var t=e.template;if(this.parsedTemplate=t?"string"==typeof t?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:so(e.slice(0,r),co),neck:so(e.slice(r,n),co),tail:so(e.slice(n+t.length),co)}}(t):t:null,this.serialize=e.serializer||function(e){return fo(e,{isJSON:!0})},e.clientManifest){var r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(vo),this.prefetchFiles=(r.async||[]).map(vo),this.mapFiles=uo(r)}};function vo(e){var t=e.replace(/\?.*/,""),r=lo.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:ho(r)}}function ho(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}po.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},po.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},po.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},po.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},po.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},po.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},po.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},po.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},po.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return io(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return io(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},po.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(vo)}return e._mappedFiles},po.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new ao(this,this.parsedTemplate,e||{})};var mo=require("vm"),yo=require("path"),go=require("resolve"),bo=require("module");function _o(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function wo(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=bo.wrap(r),o=new mo.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=yo.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=go.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function xo(e,t,r,n){var i,o,a=wo(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,_o(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?_o():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var So=require("source-map").SourceMapConsumer,$o=/\(([^)]+\.js):(\d+):(\d+)\)$/;function Ao(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match($o),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace($o,c)}return e}return e}(e,t)}).join("\n"))}var Oo=require("fs"),ko=require("path"),Co=require("stream").PassThrough,To="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function Fo(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=no(t,r,n,a),p=new po({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=oo()).promise,r=n.cb);var a="",s=gt(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new bt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}(A(A({},e),{isUnaryTag:pt,canBeLeftOpenTag:dt,modules:ct,directives:A(ft,e.directives)}))}process.env.VUE_ENV="server";var jo=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&ko.isAbsolute(t)){if(!Oo.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||ko.dirname(t),t=Oo.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new So(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(To)}else{if("string"!=typeof t)throw new Error(To);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=xo(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=oo()).promise,t=r.cb),u(e).catch(function(e){Ao(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){Ao(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Co;return u(e).catch(function(e){Ao(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){Ao(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(Fo);exports.createRenderer=Fo,exports.createBundleRenderer=jo;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index 76eaf5d1a01..bd3d0ba8b78 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.8",
+  "version": "2.6.9",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index ca9b12e10ad..fc5c3cf550c 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -3055,7 +3055,7 @@
           text = preserveWhitespace ? ' ' : '';
         }
         if (text) {
-          if (whitespaceOption === 'condense') {
+          if (!inPre && whitespaceOption === 'condense') {
             // condense consecutive whitespaces into single space
             text = text.replace(whitespaceRE, ' ');
           }
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index c92f2716929..8e0d35d215f 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -2675,7 +2675,7 @@ function parse (
         text = preserveWhitespace ? ' ' : '';
       }
       if (text) {
-        if (whitespaceOption === 'condense') {
+        if (!inPre && whitespaceOption === 'condense') {
           // condense consecutive whitespaces into single space
           text = text.replace(whitespaceRE, ' ');
         }
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index 272467813f1..a2d3e7b598e 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.8",
+  "version": "2.6.9",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From 43115e09e98d484a35f7c12249396b6d5d66c7ff Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 14 Mar 2019 17:02:03 +0800
Subject: [PATCH 867/911] build: release 2.6.9

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 37debb1054b..748b98cdf18 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.8",
+  "version": "2.6.9",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 653c74e64e5ccd66cda94c77577984f8afa8386d Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Fri, 15 Mar 2019 09:06:40 +0800
Subject: [PATCH 868/911] fix(core): use window.performance for compatibility
 in JSDOM (#9700)

fix #9698
---
 src/core/observer/scheduler.js | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index b0583ed12bd..20170cc006d 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -47,16 +47,18 @@ let getNow: () => number = Date.now
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (
-  inBrowser &&
-  window.performance &&
-  typeof performance.now === 'function' &&
-  document.createEvent('Event').timeStamp <= performance.now()
-) {
-  // if the event timestamp is bigger than the hi-res timestamp
-  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-  // and we need to use the lo-res version for event listeners as well.
-  getNow = () => performance.now()
+if (inBrowser) {
+  const performance = window.performance
+  if (
+    performance &&
+    typeof performance.now === 'function' &&
+    document.createEvent('Event').timeStamp <= performance.now()
+  ) {
+    // if the event timestamp is bigger than the hi-res timestamp
+    // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
+    // and we need to use the lo-res version for event listeners as well.
+    getNow = () => performance.now()
+  }
 }
 
 /**

From 982d5a492fb95577217e2dacaa044eabe78a8601 Mon Sep 17 00:00:00 2001
From: Vitor Luiz Cavalcanti <vitorluizc@outlook.com>
Date: Mon, 18 Mar 2019 04:47:43 -0300
Subject: [PATCH 869/911] fix(types): support string type for style in VNode
 data (#9728)

fix #9727
---
 flow/vnode.js          |  2 +-
 types/test/vue-test.ts | 25 +++++++++++++++++++++++++
 types/vnode.d.ts       |  2 +-
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/flow/vnode.js b/flow/vnode.js
index 0521b33c5c3..c9f3b3887d3 100644
--- a/flow/vnode.js
+++ b/flow/vnode.js
@@ -42,7 +42,7 @@ declare interface VNodeData {
   staticClass?: string;
   class?: any;
   staticStyle?: { [key: string]: any };
-  style?: Array<Object> | Object;
+  style?: string | Array<Object> | Object;
   normalizedStyle?: Object;
   props?: { [key: string]: any };
   attrs?: { [key: string]: string };
diff --git a/types/test/vue-test.ts b/types/test/vue-test.ts
index ca04e84714a..626220d0aac 100644
--- a/types/test/vue-test.ts
+++ b/types/test/vue-test.ts
@@ -213,3 +213,28 @@ class Decorated extends Vue {
 
 const obj = Vue.observable({ a: 1 })
 obj.a++
+
+// VNodeData style tests.
+const ComponentWithStyleInVNodeData = Vue.extend({
+  render (h) {
+    const elementWithStyleAsString = h('div', {
+      style: 'background-color: red;'
+    });
+
+    const elementWithStyleAsObject = h('div', {
+      style: { backgroundColor: 'green' }
+    });
+
+    const elementWithStyleAsArrayOfObjects = h('div', {
+      style: [
+        { backgroundColor: 'blue' }
+      ]
+    });
+
+    return h('div', undefined, [
+      elementWithStyleAsString,
+      elementWithStyleAsObject,
+      elementWithStyleAsArrayOfObjects
+    ]);
+  }
+});
diff --git a/types/vnode.d.ts b/types/vnode.d.ts
index 62afcfeb7b9..dc4470ffd84 100644
--- a/types/vnode.d.ts
+++ b/types/vnode.d.ts
@@ -48,7 +48,7 @@ export interface VNodeData {
   staticClass?: string;
   class?: any;
   staticStyle?: { [key: string]: any };
-  style?: object[] | object;
+  style?: string | object[] | object;
   props?: { [key: string]: any };
   attrs?: { [key: string]: any };
   domProps?: { [key: string]: any };

From 3433ba5beef9a6dd97705943c3441ebbee222afd Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Mon, 18 Mar 2019 16:19:41 +0800
Subject: [PATCH 870/911] fix(codegen): support named function expression in
 v-on (#9709)

fix #9707
---
 src/compiler/codegen/events.js             | 2 +-
 test/unit/modules/compiler/codegen.spec.js | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 8ce9e1b58e1..44657e38cd8 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/
+const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/
 const fnInvokeRE = /\([^)]*?\);*$/
 const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/
 
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index e56b25766f2..e946e218491 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -500,6 +500,11 @@ describe('codegen', () => {
       '<input @input="function () { current++ }">',
       `with(this){return _c('input',{on:{"input":function () { current++ }}})}`
     )
+    // normal named function
+    assertCodegen(
+      '<input @input="function fn () { current++ }">',
+      `with(this){return _c('input',{on:{"input":function fn () { current++ }}})}`
+    )
     // arrow with no args
     assertCodegen(
       '<input @input="()=>current++">',

From ebc1893faccd1a9d953a8e8feddcb49cf1b9004d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 18 Mar 2019 17:42:16 +0800
Subject: [PATCH 871/911] fix(slots): fix slots not updating when passing down
 normal slots as $scopedSlots

fix #9699
---
 .../vdom/helpers/normalize-scoped-slots.js    |  2 +-
 .../component/component-scoped-slot.spec.js   | 32 +++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/src/core/vdom/helpers/normalize-scoped-slots.js b/src/core/vdom/helpers/normalize-scoped-slots.js
index cc0348f6550..1e43fd393f7 100644
--- a/src/core/vdom/helpers/normalize-scoped-slots.js
+++ b/src/core/vdom/helpers/normalize-scoped-slots.js
@@ -10,8 +10,8 @@ export function normalizeScopedSlots (
   prevSlots?: { [key: string]: Function } | void
 ): any {
   let res
-  const isStable = slots ? !!slots.$stable : true
   const hasNormalSlots = Object.keys(normalSlots).length > 0
+  const isStable = slots ? !!slots.$stable : !hasNormalSlots
   const key = slots && slots.$key
   if (!slots) {
     res = {}
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index 8960d8bf8c5..f8a0f11b7fa 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -1277,4 +1277,36 @@ describe('Component scoped slot', () => {
     }).$mount()
     expect(vm.$el.textContent).toMatch('fallback')
   })
+
+  // #9699
+  // Component only has normal slots, but is passing down $scopedSlots directly
+  // $scopedSlots should not be marked as stable in this case
+  it('render function passing $scopedSlots w/ normal slots down', done => {
+    const one = {
+      template: `<div><slot name="footer"/></div>`
+    }
+
+    const two = {
+      render(h) {
+        return h(one, {
+          scopedSlots: this.$scopedSlots
+        })
+      }
+    }
+
+    const vm = new Vue({
+      data: { count: 0 },
+      render(h) {
+        return h(two, [
+          h('span', { slot: 'footer' }, this.count)
+        ])
+      }
+    }).$mount()
+
+    expect(vm.$el.textContent).toMatch(`0`)
+    vm.count++
+    waitForUpdate(() => {
+      expect(vm.$el.textContent).toMatch(`1`)
+    }).then(done)
+  })
 })

From 22790b250cd5239a8379b4ec8cc3a9b570dac4bc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Tue, 19 Mar 2019 12:44:49 +0800
Subject: [PATCH 872/911] fix(scheduler): revert timeStamp check

fix #9729

This reverts #9667, but also fixes the original issue #9632 by skipping
the check in IE altogether (since all IE use low-res event timestamps).
---
 src/core/observer/scheduler.js | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/core/observer/scheduler.js b/src/core/observer/scheduler.js
index 20170cc006d..ed5c504a50c 100644
--- a/src/core/observer/scheduler.js
+++ b/src/core/observer/scheduler.js
@@ -8,7 +8,8 @@ import {
   warn,
   nextTick,
   devtools,
-  inBrowser
+  inBrowser,
+  isIE
 } from '../util/index'
 
 export const MAX_UPDATE_COUNT = 100
@@ -47,16 +48,19 @@ let getNow: () => number = Date.now
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (inBrowser) {
+// All IE versions use low-res event timestamps, and have problematic clock
+// implementations (#9632)
+if (inBrowser && !isIE) {
   const performance = window.performance
   if (
     performance &&
     typeof performance.now === 'function' &&
-    document.createEvent('Event').timeStamp <= performance.now()
+    getNow() > document.createEvent('Event').timeStamp
   ) {
-    // if the event timestamp is bigger than the hi-res timestamp
-    // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-    // and we need to use the lo-res version for event listeners as well.
+    // if the event timestamp, although evaluated AFTER the Date.now(), is
+    // smaller than it, it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listener timestamps as
+    // well.
     getNow = () => performance.now()
   }
 }

From df4af4bd1906b9f23b62816142fdfbd6336d3d2f Mon Sep 17 00:00:00 2001
From: Carlos Rodrigues <david-181@hotmail.com>
Date: Tue, 19 Mar 2019 04:54:27 +0000
Subject: [PATCH 873/911] fix(types): allow using functions on the PropTypes
 (#9733)

close #9692
---
 types/options.d.ts         |  2 +-
 types/test/options-test.ts | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/types/options.d.ts b/types/options.d.ts
index dcb38614ed3..3fe7a9b7aaf 100644
--- a/types/options.d.ts
+++ b/types/options.d.ts
@@ -144,7 +144,7 @@ export interface RenderContext<Props=DefaultProps> {
   injections: any
 }
 
-export type Prop<T> = { (): T } | { new(...args: any[]): T & object }
+export type Prop<T> = { (): T } | { new(...args: any[]): T & object } | { new(...args: string[]): Function }
 
 export type PropType<T> = Prop<T> | Prop<T>[];
 
diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index 2c67efe0665..b8bdc098312 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -68,12 +68,14 @@ interface ICat {
   foo: any,
   bar: object
 }
+type ConfirmCallback = (confirm: boolean) => void;
 
 Vue.component('union-prop', {
   props: {
     cat: Object as PropType<ICat>,
     complexUnion: { type: [User, Number] as PropType<User | number> },
     kittyUser: Object as PropType<ICat & IUser>,
+    callback: Function as PropType<ConfirmCallback>,
     mixed: [RegExp, Array],
     object: [Cat, User],
     primitive: [String, Number],
@@ -84,6 +86,7 @@ Vue.component('union-prop', {
     this.cat;
     this.complexUnion;
     this.kittyUser;
+    this.callback(true);
     this.mixed;
     this.object;
     this.primitive;
@@ -281,6 +284,18 @@ Vue.component('component', {
   delimiters: ["${", "}"]
 });
 
+
+Vue.component('custom-prop-type-function', {
+  props: {
+    callback: Function as PropType<(confirm: boolean) => void>,
+  },
+  methods: {
+    confirm(){
+      this.callback(true);
+    }
+  }
+});
+
 Vue.component('provide-inject', {
   provide: {
     foo: 1

From bf5ceb759a0c9dfc8a9fa05b024f3d9aa4ea70e4 Mon Sep 17 00:00:00 2001
From: Brian McMillen <mcmillenb@users.noreply.github.com>
Date: Wed, 20 Mar 2019 01:13:14 -0400
Subject: [PATCH 874/911] polish: improve template compiler version mismatch
 warning (#9738)

---
 packages/vue-template-compiler/index.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/vue-template-compiler/index.js b/packages/vue-template-compiler/index.js
index 287d281738e..dcc7e6cbe9c 100644
--- a/packages/vue-template-compiler/index.js
+++ b/packages/vue-template-compiler/index.js
@@ -5,10 +5,12 @@ try {
 var packageName = require('./package.json').name
 var packageVersion = require('./package.json').version
 if (vueVersion && vueVersion !== packageVersion) {
+  var vuePath = require.resolve('vue')
+  var packagePath = require.resolve('./package.json')
   throw new Error(
     '\n\nVue packages version mismatch:\n\n' +
-    '- vue@' + vueVersion + '\n' +
-    '- ' + packageName + '@' + packageVersion + '\n\n' +
+    '- vue@' + vueVersion + ' (' + vuePath + ')\n' +
+    '- ' + packageName + '@' + packageVersion + ' (' + packagePath + ')\n\n' +
     'This may cause things to work incorrectly. Make sure to use the same version for both.\n' +
     'If you are using vue-loader@>=10.0, simply update vue-template-compiler.\n' +
     'If you are using vue-loader@<10.0 or vueify, re-installing vue-loader/vueify should bump ' + packageName + ' to the latest.\n'

From 02d21c265c239682e73b2b3f98028f2da5e7205d Mon Sep 17 00:00:00 2001
From: Alexander Schwartz <alexander.schwartz@gmx.net>
Date: Wed, 20 Mar 2019 06:55:37 +0100
Subject: [PATCH 875/911] fix(core): cleanup timeouts for async components
 (#9649)

close #9648
---
 .../vdom/helpers/resolve-async-component.js   | 16 ++++-
 .../component/component-async.spec.js         | 64 +++++++++++++++++++
 2 files changed, 78 insertions(+), 2 deletions(-)

diff --git a/src/core/vdom/helpers/resolve-async-component.js b/src/core/vdom/helpers/resolve-async-component.js
index 534c444f2a2..5fc00fab4af 100644
--- a/src/core/vdom/helpers/resolve-async-component.js
+++ b/src/core/vdom/helpers/resolve-async-component.js
@@ -65,6 +65,8 @@ export function resolveAsyncComponent (
   if (owner && !isDef(factory.owners)) {
     const owners = factory.owners = [owner]
     let sync = true
+    let timerLoading = null
+    let timerTimeout = null
 
     ;(owner: any).$on('hook:destroyed', () => remove(owners, owner))
 
@@ -75,6 +77,14 @@ export function resolveAsyncComponent (
 
       if (renderCompleted) {
         owners.length = 0
+        if (timerLoading !== null) {
+          clearTimeout(timerLoading)
+          timerLoading = null
+        }
+        if (timerTimeout !== null) {
+          clearTimeout(timerTimeout)
+          timerTimeout = null
+        }
       }
     }
 
@@ -121,7 +131,8 @@ export function resolveAsyncComponent (
           if (res.delay === 0) {
             factory.loading = true
           } else {
-            setTimeout(() => {
+            timerLoading = setTimeout(() => {
+              timerLoading = null
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true
                 forceRender(false)
@@ -131,7 +142,8 @@ export function resolveAsyncComponent (
         }
 
         if (isDef(res.timeout)) {
-          setTimeout(() => {
+          timerTimeout = setTimeout(() => {
+            timerTimeout = null
             if (isUndef(factory.resolved)) {
               reject(
                 process.env.NODE_ENV !== 'production'
diff --git a/test/unit/features/component/component-async.spec.js b/test/unit/features/component/component-async.spec.js
index 6e057b81e63..1e492f7f617 100644
--- a/test/unit/features/component/component-async.spec.js
+++ b/test/unit/features/component/component-async.spec.js
@@ -2,6 +2,42 @@ import Vue from 'vue'
 import { Promise } from 'es6-promise'
 
 describe('Component async', () => {
+
+  const oldSetTimeout = window.setTimeout;
+  const oldClearTimeout = window.clearTimeout;
+
+  // will contain pending timeouts set during the test iteration
+  // will contain the id of the timeout as the key, and the the millisecond timeout as the value
+  // this helps to identify the timeout that is still pending
+  let timeoutsPending = {};
+
+  beforeEach(function () {
+    // reset the timeouts for this iteration
+    timeoutsPending = {};
+
+    window.setTimeout = function(func, delay) {
+      let id = oldSetTimeout(function() {
+        delete timeoutsPending[id];
+        func();
+      }, delay);
+      timeoutsPending[id] = delay;
+      return id
+    };
+
+    window.clearTimeout = function(id) {
+      oldClearTimeout(id);
+      delete timeoutsPending[id];
+    };
+  })
+
+  afterEach(function () {
+    window.setTimeout = oldSetTimeout;
+    window.clearTimeout = oldClearTimeout;
+    // after the test is complete no timeouts that have been set up during the test should still be active
+    // compare stringified JSON for better error message containing ID and millisecond timeout
+    expect(JSON.stringify(timeoutsPending)).toEqual(JSON.stringify({}))
+  })
+
   it('normal', done => {
     const vm = new Vue({
       template: '<div><test></test></div>',
@@ -343,6 +379,34 @@ describe('Component async', () => {
       }, 50)
     })
 
+    it('should not have running timeout/loading if resolved', done => {
+      const vm = new Vue({
+        template: `<div><test/></div>`,
+        components: {
+          test: () => ({
+            component: new Promise((resolve, reject) => {
+              setTimeout(() => {
+                resolve({ template: '<div>hi</div>' })
+                Promise.resolve().then(() => {
+                  Vue.nextTick(next)
+                })
+              }, 10)
+            }),
+            loading: { template: `<div>loading</div>` },
+            delay: 30,
+            error: { template: `<div>error</div>` },
+            timeout: 40
+          })
+        }
+      }).$mount()
+
+      function next () {
+        expect(vm.$el.textContent).toBe('hi')
+        // the afterEach() will ensure that the timeouts for delay and timeout have been cleared
+        done()
+      }
+    })
+
     // #7107
     it(`should work when resolving sync in sibling component's mounted hook`, done => {
       let resolveTwo

From f11449d916a468651d4fd5024c37e3eebbc9941f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 20 Mar 2019 14:13:23 +0800
Subject: [PATCH 876/911] fix(core): only unset dom prop when not present

fix #9650
---
 src/platforms/web/runtime/modules/dom-props.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/platforms/web/runtime/modules/dom-props.js b/src/platforms/web/runtime/modules/dom-props.js
index 3e322462675..a5c3dc7f4aa 100644
--- a/src/platforms/web/runtime/modules/dom-props.js
+++ b/src/platforms/web/runtime/modules/dom-props.js
@@ -19,10 +19,11 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
   }
 
   for (key in oldProps) {
-    if (isUndef(props[key])) {
+    if (!(key in props)) {
       elm[key] = ''
     }
   }
+
   for (key in props) {
     cur = props[key]
     // ignore children if the node has textContent or innerHTML,

From e7b912a17bf3be6b1743307ce359a9c6816be0dd Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 20 Mar 2019 14:26:40 +0800
Subject: [PATCH 877/911] build: build 2.6.10

---
 dist/vue.common.dev.js                      | 54 ++++++++++++++-------
 dist/vue.common.prod.js                     |  4 +-
 dist/vue.esm.browser.js                     | 54 ++++++++++++++-------
 dist/vue.esm.browser.min.js                 |  4 +-
 dist/vue.esm.js                             | 54 ++++++++++++++-------
 dist/vue.js                                 | 54 ++++++++++++++-------
 dist/vue.min.js                             |  4 +-
 dist/vue.runtime.common.dev.js              | 52 +++++++++++++-------
 dist/vue.runtime.common.prod.js             |  4 +-
 dist/vue.runtime.esm.js                     | 52 +++++++++++++-------
 dist/vue.runtime.js                         | 52 +++++++++++++-------
 dist/vue.runtime.min.js                     |  4 +-
 packages/vue-server-renderer/basic.js       | 47 +++++++++++++-----
 packages/vue-server-renderer/build.dev.js   | 47 +++++++++++++-----
 packages/vue-server-renderer/build.prod.js  |  2 +-
 packages/vue-server-renderer/package.json   |  2 +-
 packages/vue-template-compiler/browser.js   |  2 +-
 packages/vue-template-compiler/build.js     |  2 +-
 packages/vue-template-compiler/package.json |  2 +-
 19 files changed, 336 insertions(+), 160 deletions(-)

diff --git a/dist/vue.common.dev.js b/dist/vue.common.dev.js
index 11365f56471..ef511fc906e 100644
--- a/dist/vue.common.dev.js
+++ b/dist/vue.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2544,8 +2544,8 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
-  var isStable = slots ? !!slots.$stable : true;
   var hasNormalSlots = Object.keys(normalSlots).length > 0;
+  var isStable = slots ? !!slots.$stable : !hasNormalSlots;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -3629,7 +3629,9 @@ function resolveAsyncComponent (
 
   if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true
+    var sync = true;
+    var timerLoading = null;
+    var timerTimeout = null
 
     ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -3640,6 +3642,14 @@ function resolveAsyncComponent (
 
       if (renderCompleted) {
         owners.length = 0;
+        if (timerLoading !== null) {
+          clearTimeout(timerLoading);
+          timerLoading = null;
+        }
+        if (timerTimeout !== null) {
+          clearTimeout(timerTimeout);
+          timerTimeout = null;
+        }
       }
     };
 
@@ -3686,7 +3696,8 @@ function resolveAsyncComponent (
           if (res.delay === 0) {
             factory.loading = true;
           } else {
-            setTimeout(function () {
+            timerLoading = setTimeout(function () {
+              timerLoading = null;
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
                 forceRender(false);
@@ -3696,7 +3707,8 @@ function resolveAsyncComponent (
         }
 
         if (isDef(res.timeout)) {
-          setTimeout(function () {
+          timerTimeout = setTimeout(function () {
+            timerTimeout = null;
             if (isUndef(factory.resolved)) {
               reject(
                 "timeout (" + (res.timeout) + "ms)"
@@ -4242,16 +4254,21 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (
-  inBrowser &&
-  window.performance &&
-  typeof performance.now === 'function' &&
-  document.createEvent('Event').timeStamp <= performance.now()
-) {
-  // if the event timestamp is bigger than the hi-res timestamp
-  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-  // and we need to use the lo-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
+// All IE versions use low-res event timestamps, and have problematic clock
+// implementations (#9632)
+if (inBrowser && !isIE) {
+  var performance = window.performance;
+  if (
+    performance &&
+    typeof performance.now === 'function' &&
+    getNow() > document.createEvent('Event').timeStamp
+  ) {
+    // if the event timestamp, although evaluated AFTER the Date.now(), is
+    // smaller than it, it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listener timestamps as
+    // well.
+    getNow = function () { return performance.now(); };
+  }
 }
 
 /**
@@ -5416,7 +5433,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.9';
+Vue.version = '2.6.10';
 
 /*  */
 
@@ -7578,10 +7595,11 @@ function updateDOMProps (oldVnode, vnode) {
   }
 
   for (key in oldProps) {
-    if (isUndef(props[key])) {
+    if (!(key in props)) {
       elm[key] = '';
     }
   }
+
   for (key in props) {
     cur = props[key];
     // ignore children if the node has textContent or innerHTML,
@@ -10698,7 +10716,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
diff --git a/dist/vue.common.prod.js b/dist/vue.common.prod.js
index 71172736328..8c31375ec83 100644
--- a/dist/vue.common.prod.js
+++ b/dist/vue.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return n[e.toLowerCase()]}:function(e){return n[e]}}var d=p("slot,component",!0),v=p("key,ref,slot,slot-scope,is");function h(e,t){if(e.length){var n=e.indexOf(t);if(n>-1)return e.splice(n,1)}}var 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a=La(e[o]);e[o]&&e[o].dynamic?i+=o+","+a+",":r+='"'+o+'":'+a+","}return r="{"+r.slice(0,-1)+"}",i?n+"_d("+r+",["+i.slice(0,-1)+"])":n+r}function La(e){if(!e)return"function(){}";if(Array.isArray(e))return"["+e.map(function(e){return La(e)}).join(",")+"]";var t=Sa.test(e.value),n=Aa.test(e.value),r=Sa.test(e.value.replace(Oa,""));if(e.modifiers){var i="",o="",a=[];for(var s in e.modifiers)if(ja[s])o+=ja[s],Ta[s]&&a.push(s);else if("exact"===s){var c=e.modifiers;o+=Na(["ctrl","shift","alt","meta"].filter(function(e){return!c[e]}).map(function(e){return"$event."+e+"Key"}).join("||"))}else a.push(s);return a.length&&(i+=function(e){return"if(!$event.type.indexOf('key')&&"+e.map(Ma).join("&&")+")return null;"}(a)),o&&(i+=o),"function($event){"+i+(t?"return "+e.value+"($event)":n?"return ("+e.value+")($event)":r?"return "+e.value:e.value)+"}"}return t||n?e.value:"function($event){"+(r?"return "+e.value:e.value)+"}"}function Ma(e){var t=parseInt(e,10);if(t)return"$event.keyCode!=="+t;var 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u=t.directives[o.name];u&&(a=!!u(e,o,t.warn)),a&&(c=!0,s+='{name:"'+o.name+'",rawName:"'+o.rawName+'"'+(o.value?",value:("+o.value+"),expression:"+JSON.stringify(o.value):"")+(o.arg?",arg:"+(o.isDynamicArg?o.arg:'"'+o.arg+'"'):"")+(o.modifiers?",modifiers:"+JSON.stringify(o.modifiers):"")+"},")}if(c)return s.slice(0,-1)+"]"}(e,t);r&&(n+=r+","),e.key&&(n+="key:"+e.key+","),e.ref&&(n+="ref:"+e.ref+","),e.refInFor&&(n+="refInFor:true,"),e.pre&&(n+="pre:true,"),e.component&&(n+='tag:"'+e.tag+'",');for(var i=0;i<t.dataGenFns.length;i++)n+=t.dataGenFns[i](e);if(e.attrs&&(n+="attrs:"+Ga(e.attrs)+","),e.props&&(n+="domProps:"+Ga(e.props)+","),e.events&&(n+=Da(e.events,!1)+","),e.nativeEvents&&(n+=Da(e.nativeEvents,!0)+","),e.slotTarget&&!e.slotScope&&(n+="slot:"+e.slotTarget+","),e.scopedSlots&&(n+=function(e,t,n){var r=e.for||Object.keys(t).some(function(e){var n=t[e];return n.slotTargetDynamic||n.if||n.for||Ka(n)}),i=!!e.if;if(!r)for(var 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t&&t.innerHTML}),cs=wn.prototype.$mount;wn.prototype.$mount=function(e,t){if((e=e&&Yn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=ss(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var i=rs(r,{outputSourceRange:!1,shouldDecodeNewlines:os,shouldDecodeNewlinesForHref:as,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return cs.call(this,e,t)},wn.compile=rs,module.exports=wn;
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diff --git a/dist/vue.esm.browser.js b/dist/vue.esm.browser.js
index 01434348e0c..0882e77828d 100644
--- a/dist/vue.esm.browser.js
+++ b/dist/vue.esm.browser.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2572,8 +2572,8 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   let res;
-  const isStable = slots ? !!slots.$stable : true;
   const hasNormalSlots = Object.keys(normalSlots).length > 0;
+  const isStable = slots ? !!slots.$stable : !hasNormalSlots;
   const key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -3650,7 +3650,9 @@ function resolveAsyncComponent (
 
   if (owner && !isDef(factory.owners)) {
     const owners = factory.owners = [owner];
-    let sync = true
+    let sync = true;
+    let timerLoading = null;
+    let timerTimeout = null
 
     ;(owner).$on('hook:destroyed', () => remove(owners, owner));
 
@@ -3661,6 +3663,14 @@ function resolveAsyncComponent (
 
       if (renderCompleted) {
         owners.length = 0;
+        if (timerLoading !== null) {
+          clearTimeout(timerLoading);
+          timerLoading = null;
+        }
+        if (timerTimeout !== null) {
+          clearTimeout(timerTimeout);
+          timerTimeout = null;
+        }
       }
     };
 
@@ -3707,7 +3717,8 @@ function resolveAsyncComponent (
           if (res.delay === 0) {
             factory.loading = true;
           } else {
-            setTimeout(() => {
+            timerLoading = setTimeout(() => {
+              timerLoading = null;
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
                 forceRender(false);
@@ -3717,7 +3728,8 @@ function resolveAsyncComponent (
         }
 
         if (isDef(res.timeout)) {
-          setTimeout(() => {
+          timerTimeout = setTimeout(() => {
+            timerTimeout = null;
             if (isUndef(factory.resolved)) {
               reject(
                 `timeout (${res.timeout}ms)`
@@ -4263,16 +4275,21 @@ let getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (
-  inBrowser &&
-  window.performance &&
-  typeof performance.now === 'function' &&
-  document.createEvent('Event').timeStamp <= performance.now()
-) {
-  // if the event timestamp is bigger than the hi-res timestamp
-  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-  // and we need to use the lo-res version for event listeners as well.
-  getNow = () => performance.now();
+// All IE versions use low-res event timestamps, and have problematic clock
+// implementations (#9632)
+if (inBrowser && !isIE) {
+  const performance = window.performance;
+  if (
+    performance &&
+    typeof performance.now === 'function' &&
+    getNow() > document.createEvent('Event').timeStamp
+  ) {
+    // if the event timestamp, although evaluated AFTER the Date.now(), is
+    // smaller than it, it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listener timestamps as
+    // well.
+    getNow = () => performance.now();
+  }
 }
 
 /**
@@ -5447,7 +5464,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.9';
+Vue.version = '2.6.10';
 
 /*  */
 
@@ -7601,10 +7618,11 @@ function updateDOMProps (oldVnode, vnode) {
   }
 
   for (key in oldProps) {
-    if (isUndef(props[key])) {
+    if (!(key in props)) {
       elm[key] = '';
     }
   }
+
   for (key in props) {
     cur = props[key];
     // ignore children if the node has textContent or innerHTML,
@@ -10711,7 +10729,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
 const fnInvokeRE = /\([^)]*?\);*$/;
 const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
diff --git a/dist/vue.esm.browser.min.js b/dist/vue.esm.browser.min.js
index 6dcf7b2aa55..d916a0419e1 100644
--- a/dist/vue.esm.browser.min.js
+++ b/dist/vue.esm.browser.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-const t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function o(t){return!0===t}function r(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function s(t){return null!==t&&"object"==typeof t}const i=Object.prototype.toString;function a(t){return"[object Object]"===i.call(t)}function c(t){const e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function l(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function u(t){return null==t?"":Array.isArray(t)||a(t)&&t.toString===i?JSON.stringify(t,null,2):String(t)}function f(t){const e=parseFloat(t);return isNaN(e)?t:e}function d(t,e){const n=Object.create(null),o=t.split(",");for(let t=0;t<o.length;t++)n[o[t]]=!0;return e?t=>n[t.toLowerCase()]:t=>n[t]}const p=d("slot,component",!0),h=d("key,ref,slot,slot-scope,is");function m(t,e){if(t.length){const n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}const 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Fi(t,e);if(t.if&&!t.ifProcessed)return Ii(t,e);if("template"!==t.tag||t.slotTarget||e.pre){if("slot"===t.tag)return function(t,e){const n=t.slotName||'"default"',o=Bi(t,e);let r=`_t(${n}${o?`,${o}`:""}`;const s=t.attrs||t.dynamicAttrs?Vi((t.attrs||[]).concat(t.dynamicAttrs||[]).map(t=>({name:_(t.name),value:t.value,dynamic:t.dynamic}))):null,i=t.attrsMap["v-bind"];!s&&!i||o||(r+=",null");s&&(r+=`,${s}`);i&&(r+=`${s?"":",null"},${i}`);return r+")"}(t,e);{let n;if(t.component)n=function(t,e,n){const o=e.inlineTemplate?null:Bi(e,n,!0);return`_c(${t},${Pi(e,n)}${o?`,${o}`:""})`}(t.component,t,e);else{let o;(!t.plain||t.pre&&e.maybeComponent(t))&&(o=Pi(t,e));const r=t.inlineTemplate?null:Bi(t,e,!0);n=`_c('${t.tag}'${o?`,${o}`:""}${r?`,${r}`:""})`}for(let o=0;o<e.transforms.length;o++)n=e.transforms[o](t,n);return n}}return Bi(t,e)||"void 0"}function Li(t,e){t.staticProcessed=!0;const n=e.pre;return t.pre&&(e.pre=t.pre),e.staticRenderFns.push(`with(this){return ${Di(t,e)}}`),e.pre=n,`_m(${e.staticRenderFns.length-1}${t.staticInFor?",true":""})`}function Mi(t,e){if(t.onceProcessed=!0,t.if&&!t.ifProcessed)return Ii(t,e);if(t.staticInFor){let n="",o=t.parent;for(;o;){if(o.for){n=o.key;break}o=o.parent}return n?`_o(${Di(t,e)},${e.onceId++},${n})`:Di(t,e)}return Li(t,e)}function Ii(t,e,n,o){return t.ifProcessed=!0,function t(e,n,o,r){if(!e.length)return r||"_e()";const s=e.shift();return s.exp?`(${s.exp})?${i(s.block)}:${t(e,n,o,r)}`:`${i(s.block)}`;function i(t){return o?o(t,n):t.once?Mi(t,n):Di(t,n)}}(t.ifConditions.slice(),e,n,o)}function Fi(t,e,n,o){const r=t.for,s=t.alias,i=t.iterator1?`,${t.iterator1}`:"",a=t.iterator2?`,${t.iterator2}`:"";return t.forProcessed=!0,`${o||"_l"}((${r}),`+`function(${s}${i}${a}){`+`return ${(n||Di)(t,e)}`+"})"}function Pi(t,e){let n="{";const o=function(t,e){const n=t.directives;if(!n)return;let o,r,s,i,a="directives:[",c=!1;for(o=0,r=n.length;o<r;o++){s=n[o],i=!0;const r=e.directives[s.name];r&&(i=!!r(t,s,e.warn)),i&&(c=!0,a+=`{name:"${s.name}",rawName:"${s.rawName}"${s.value?`,value:(${s.value}),expression:${JSON.stringify(s.value)}`:""}${s.arg?`,arg:${s.isDynamicArg?s.arg:`"${s.arg}"`}`:""}${s.modifiers?`,modifiers:${JSON.stringify(s.modifiers)}`:""}},`)}if(c)return a.slice(0,-1)+"]"}(t,e);o&&(n+=o+","),t.key&&(n+=`key:${t.key},`),t.ref&&(n+=`ref:${t.ref},`),t.refInFor&&(n+="refInFor:true,"),t.pre&&(n+="pre:true,"),t.component&&(n+=`tag:"${t.tag}",`);for(let o=0;o<e.dataGenFns.length;o++)n+=e.dataGenFns[o](t);if(t.attrs&&(n+=`attrs:${Vi(t.attrs)},`),t.props&&(n+=`domProps:${Vi(t.props)},`),t.events&&(n+=`${Oi(t.events,!1)},`),t.nativeEvents&&(n+=`${Oi(t.nativeEvents,!0)},`),t.slotTarget&&!t.slotScope&&(n+=`slot:${t.slotTarget},`),t.scopedSlots&&(n+=`${function(t,e,n){let o=t.for||Object.keys(e).some(t=>{const n=e[t];return n.slotTargetDynamic||n.if||n.for||Ri(n)}),r=!!t.if;if(!o){let e=t.parent;for(;e;){if(e.slotScope&&e.slotScope!==Ws||e.for){o=!0;break}e.if&&(r=!0),e=e.parent}}const s=Object.keys(e).map(t=>Hi(e[t],n)).join(",");return`scopedSlots:_u([${s}]${o?",null,true":""}${!o&&r?`,null,false,${function(t){let e=5381,n=t.length;for(;n;)e=33*e^t.charCodeAt(--n);return e>>>0}(s)}`:""})`}(t,t.scopedSlots,e)},`),t.model&&(n+=`model:{value:${t.model.value},callback:${t.model.callback},expression:${t.model.expression}},`),t.inlineTemplate){const o=function(t,e){const n=t.children[0];if(n&&1===n.type){const t=ji(n,e.options);return`inlineTemplate:{render:function(){${t.render}},staticRenderFns:[${t.staticRenderFns.map(t=>`function(){${t}}`).join(",")}]}`}}(t,e);o&&(n+=`${o},`)}return n=n.replace(/,$/,"")+"}",t.dynamicAttrs&&(n=`_b(${n},"${t.tag}",${Vi(t.dynamicAttrs)})`),t.wrapData&&(n=t.wrapData(n)),t.wrapListeners&&(n=t.wrapListeners(n)),n}function Ri(t){return 1===t.type&&("slot"===t.tag||t.children.some(Ri))}function Hi(t,e){const n=t.attrsMap["slot-scope"];if(t.if&&!t.ifProcessed&&!n)return Ii(t,e,Hi,"null");if(t.for&&!t.forProcessed)return Fi(t,e,Hi);const o=t.slotScope===Ws?"":String(t.slotScope),r=`function(${o}){`+`return ${"template"===t.tag?t.if&&n?`(${t.if})?${Bi(t,e)||"undefined"}:undefined`:Bi(t,e)||"undefined":Di(t,e)}}`,s=o?"":",proxy:true";return`{key:${t.slotTarget||'"default"'},fn:${r}${s}}`}function Bi(t,e,n,o,r){const s=t.children;if(s.length){const t=s[0];if(1===s.length&&t.for&&"template"!==t.tag&&"slot"!==t.tag){const r=n?e.maybeComponent(t)?",1":",0":"";return`${(o||Di)(t,e)}${r}`}const i=n?function(t,e){let n=0;for(let o=0;o<t.length;o++){const r=t[o];if(1===r.type){if(Ui(r)||r.ifConditions&&r.ifConditions.some(t=>Ui(t.block))){n=2;break}(e(r)||r.ifConditions&&r.ifConditions.some(t=>e(t.block)))&&(n=1)}}return n}(s,e.maybeComponent):0,a=r||zi;return`[${s.map(t=>a(t,e)).join(",")}]${i?`,${i}`:""}`}}function Ui(t){return void 0!==t.for||"template"===t.tag||"slot"===t.tag}function zi(t,e){return 1===t.type?Di(t,e):3===t.type&&t.isComment?(o=t,`_e(${JSON.stringify(o.text)})`):`_v(${2===(n=t).type?n.expression:Ki(JSON.stringify(n.text))})`;var n,o}function Vi(t){let e="",n="";for(let o=0;o<t.length;o++){const r=t[o],s=Ki(r.value);r.dynamic?n+=`${r.name},${s},`:e+=`"${r.name}":${s},`}return e=`{${e.slice(0,-1)}}`,n?`_d(${e},[${n.slice(0,-1)}])`:e}function Ki(t){return t.replace(/\u2028/g,"\\u2028").replace(/\u2029/g,"\\u2029")}new RegExp("\\b"+"do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,super,throw,while,yield,delete,export,import,return,switch,default,extends,finally,continue,debugger,function,arguments".split(",").join("\\b|\\b")+"\\b");function Ji(t,e){try{return new Function(t)}catch(n){return e.push({err:n,code:t}),S}}function qi(t){const e=Object.create(null);return function(n,o,r){(o=A({},o)).warn;delete o.warn;const s=o.delimiters?String(o.delimiters)+n:n;if(e[s])return e[s];const i=t(n,o),a={},c=[];return a.render=Ji(i.render,c),a.staticRenderFns=i.staticRenderFns.map(t=>Ji(t,c)),e[s]=a}}const Wi=(Zi=function(t,e){const n=ri(t.trim(),e);!1!==e.optimize&&$i(n,e);const o=ji(n,e);return{ast:n,render:o.render,staticRenderFns:o.staticRenderFns}},function(t){function e(e,n){const o=Object.create(t),r=[],s=[];if(n){n.modules&&(o.modules=(t.modules||[]).concat(n.modules)),n.directives&&(o.directives=A(Object.create(t.directives||null),n.directives));for(const t in n)"modules"!==t&&"directives"!==t&&(o[t]=n[t])}o.warn=((t,e,n)=>{(n?s:r).push(t)});const i=Zi(e.trim(),o);return i.errors=r,i.tips=s,i}return{compile:e,compileToFunctions:qi(e)}});var Zi;const{compile:Gi,compileToFunctions:Xi}=Wi(mi);let Yi;function Qi(t){return(Yi=Yi||document.createElement("div")).innerHTML=t?'<a href="\n"/>':'<div a="\n"/>',Yi.innerHTML.indexOf("&#10;")>0}const ta=!!z&&Qi(!1),ea=!!z&&Qi(!0),na=v(t=>{const e=Jn(t);return e&&e.innerHTML}),oa=yn.prototype.$mount;yn.prototype.$mount=function(t,e){if((t=t&&Jn(t))===document.body||t===document.documentElement)return this;const n=this.$options;if(!n.render){let e=n.template;if(e)if("string"==typeof e)"#"===e.charAt(0)&&(e=na(e));else{if(!e.nodeType)return this;e=e.innerHTML}else t&&(e=function(t){if(t.outerHTML)return t.outerHTML;{const e=document.createElement("div");return e.appendChild(t.cloneNode(!0)),e.innerHTML}}(t));if(e){const{render:t,staticRenderFns:o}=Xi(e,{outputSourceRange:!1,shouldDecodeNewlines:ta,shouldDecodeNewlinesForHref:ea,delimiters:n.delimiters,comments:n.comments},this);n.render=t,n.staticRenderFns=o}}return oa.call(this,t,e)},yn.compile=Xi;export default yn;
\ No newline at end of file
diff --git a/dist/vue.esm.js b/dist/vue.esm.js
index 134d6660c07..3c0da43ecf2 100644
--- a/dist/vue.esm.js
+++ b/dist/vue.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2550,8 +2550,8 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
-  var isStable = slots ? !!slots.$stable : true;
   var hasNormalSlots = Object.keys(normalSlots).length > 0;
+  var isStable = slots ? !!slots.$stable : !hasNormalSlots;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -3639,7 +3639,9 @@ function resolveAsyncComponent (
 
   if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true
+    var sync = true;
+    var timerLoading = null;
+    var timerTimeout = null
 
     ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -3650,6 +3652,14 @@ function resolveAsyncComponent (
 
       if (renderCompleted) {
         owners.length = 0;
+        if (timerLoading !== null) {
+          clearTimeout(timerLoading);
+          timerLoading = null;
+        }
+        if (timerTimeout !== null) {
+          clearTimeout(timerTimeout);
+          timerTimeout = null;
+        }
       }
     };
 
@@ -3696,7 +3706,8 @@ function resolveAsyncComponent (
           if (res.delay === 0) {
             factory.loading = true;
           } else {
-            setTimeout(function () {
+            timerLoading = setTimeout(function () {
+              timerLoading = null;
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
                 forceRender(false);
@@ -3706,7 +3717,8 @@ function resolveAsyncComponent (
         }
 
         if (isDef(res.timeout)) {
-          setTimeout(function () {
+          timerTimeout = setTimeout(function () {
+            timerTimeout = null;
             if (isUndef(factory.resolved)) {
               reject(
                 process.env.NODE_ENV !== 'production'
@@ -4254,16 +4266,21 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (
-  inBrowser &&
-  window.performance &&
-  typeof performance.now === 'function' &&
-  document.createEvent('Event').timeStamp <= performance.now()
-) {
-  // if the event timestamp is bigger than the hi-res timestamp
-  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-  // and we need to use the lo-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
+// All IE versions use low-res event timestamps, and have problematic clock
+// implementations (#9632)
+if (inBrowser && !isIE) {
+  var performance = window.performance;
+  if (
+    performance &&
+    typeof performance.now === 'function' &&
+    getNow() > document.createEvent('Event').timeStamp
+  ) {
+    // if the event timestamp, although evaluated AFTER the Date.now(), is
+    // smaller than it, it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listener timestamps as
+    // well.
+    getNow = function () { return performance.now(); };
+  }
 }
 
 /**
@@ -5436,7 +5453,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.9';
+Vue.version = '2.6.10';
 
 /*  */
 
@@ -7600,10 +7617,11 @@ function updateDOMProps (oldVnode, vnode) {
   }
 
   for (key in oldProps) {
-    if (isUndef(props[key])) {
+    if (!(key in props)) {
       elm[key] = '';
     }
   }
+
   for (key in props) {
     cur = props[key];
     // ignore children if the node has textContent or innerHTML,
@@ -10729,7 +10747,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
diff --git a/dist/vue.js b/dist/vue.js
index 31ca2426a98..4ef7ff1b0ad 100644
--- a/dist/vue.js
+++ b/dist/vue.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2548,8 +2548,8 @@
     prevSlots
   ) {
     var res;
-    var isStable = slots ? !!slots.$stable : true;
     var hasNormalSlots = Object.keys(normalSlots).length > 0;
+    var isStable = slots ? !!slots.$stable : !hasNormalSlots;
     var key = slots && slots.$key;
     if (!slots) {
       res = {};
@@ -3633,7 +3633,9 @@
 
     if (owner && !isDef(factory.owners)) {
       var owners = factory.owners = [owner];
-      var sync = true
+      var sync = true;
+      var timerLoading = null;
+      var timerTimeout = null
 
       ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -3644,6 +3646,14 @@
 
         if (renderCompleted) {
           owners.length = 0;
+          if (timerLoading !== null) {
+            clearTimeout(timerLoading);
+            timerLoading = null;
+          }
+          if (timerTimeout !== null) {
+            clearTimeout(timerTimeout);
+            timerTimeout = null;
+          }
         }
       };
 
@@ -3690,7 +3700,8 @@
             if (res.delay === 0) {
               factory.loading = true;
             } else {
-              setTimeout(function () {
+              timerLoading = setTimeout(function () {
+                timerLoading = null;
                 if (isUndef(factory.resolved) && isUndef(factory.error)) {
                   factory.loading = true;
                   forceRender(false);
@@ -3700,7 +3711,8 @@
           }
 
           if (isDef(res.timeout)) {
-            setTimeout(function () {
+            timerTimeout = setTimeout(function () {
+              timerTimeout = null;
               if (isUndef(factory.resolved)) {
                 reject(
                   "timeout (" + (res.timeout) + "ms)"
@@ -4246,16 +4258,21 @@
   // timestamp can either be hi-res (relative to page load) or low-res
   // (relative to UNIX epoch), so in order to compare time we have to use the
   // same timestamp type when saving the flush timestamp.
-  if (
-    inBrowser &&
-    window.performance &&
-    typeof performance.now === 'function' &&
-    document.createEvent('Event').timeStamp <= performance.now()
-  ) {
-    // if the event timestamp is bigger than the hi-res timestamp
-    // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-    // and we need to use the lo-res version for event listeners as well.
-    getNow = function () { return performance.now(); };
+  // All IE versions use low-res event timestamps, and have problematic clock
+  // implementations (#9632)
+  if (inBrowser && !isIE) {
+    var performance = window.performance;
+    if (
+      performance &&
+      typeof performance.now === 'function' &&
+      getNow() > document.createEvent('Event').timeStamp
+    ) {
+      // if the event timestamp, although evaluated AFTER the Date.now(), is
+      // smaller than it, it means the event is using a hi-res timestamp,
+      // and we need to use the hi-res version for event listener timestamps as
+      // well.
+      getNow = function () { return performance.now(); };
+    }
   }
 
   /**
@@ -5420,7 +5437,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.9';
+  Vue.version = '2.6.10';
 
   /*  */
 
@@ -7582,10 +7599,11 @@
     }
 
     for (key in oldProps) {
-      if (isUndef(props[key])) {
+      if (!(key in props)) {
         elm[key] = '';
       }
     }
+
     for (key in props) {
       cur = props[key];
       // ignore children if the node has textContent or innerHTML,
@@ -10702,7 +10720,7 @@
 
   /*  */
 
-  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
   var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
diff --git a/dist/vue.min.js b/dist/vue.min.js
index bc5a7f4770f..087ee42cd10 100644
--- a/dist/vue.min.js
+++ b/dist/vue.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e=e||self).Vue=t()}(this,function(){"use strict";var e=Object.freeze({});function t(e){return null==e}function n(e){return null!=e}function r(e){return!0===e}function i(e){return"string"==typeof e||"number"==typeof e||"symbol"==typeof e||"boolean"==typeof e}function o(e){return null!==e&&"object"==typeof e}var a=Object.prototype.toString;function s(e){return"[object Object]"===a.call(e)}function c(e){var t=parseFloat(String(e));return t>=0&&Math.floor(t)===t&&isFinite(e)}function u(e){return n(e)&&"function"==typeof e.then&&"function"==typeof e.catch}function l(e){return null==e?"":Array.isArray(e)||s(e)&&e.toString===a?JSON.stringify(e,null,2):String(e)}function f(e){var t=parseFloat(e);return isNaN(t)?e:t}function p(e,t){for(var n=Object.create(null),r=e.split(","),i=0;i<r.length;i++)n[r[i]]=!0;return t?function(e){return 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wn.prototype.$mount=function(e,t){if((e=e&&Yn(e))===document.body||e===document.documentElement)return this;var n=this.$options;if(!n.render){var r=n.template;if(r)if("string"==typeof r)"#"===r.charAt(0)&&(r=ss(r));else{if(!r.nodeType)return this;r=r.innerHTML}else e&&(r=function(e){if(e.outerHTML)return e.outerHTML;var t=document.createElement("div");return t.appendChild(e.cloneNode(!0)),t.innerHTML}(e));if(r){var i=rs(r,{outputSourceRange:!1,shouldDecodeNewlines:os,shouldDecodeNewlinesForHref:as,delimiters:n.delimiters,comments:n.comments},this),o=i.render,a=i.staticRenderFns;n.render=o,n.staticRenderFns=a}}return cs.call(this,e,t)},wn.compile=rs,wn});
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diff --git a/dist/vue.runtime.common.dev.js b/dist/vue.runtime.common.dev.js
index 1aeba18fa84..943ccf68082 100644
--- a/dist/vue.runtime.common.dev.js
+++ b/dist/vue.runtime.common.dev.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2535,8 +2535,8 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
-  var isStable = slots ? !!slots.$stable : true;
   var hasNormalSlots = Object.keys(normalSlots).length > 0;
+  var isStable = slots ? !!slots.$stable : !hasNormalSlots;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -3620,7 +3620,9 @@ function resolveAsyncComponent (
 
   if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true
+    var sync = true;
+    var timerLoading = null;
+    var timerTimeout = null
 
     ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -3631,6 +3633,14 @@ function resolveAsyncComponent (
 
       if (renderCompleted) {
         owners.length = 0;
+        if (timerLoading !== null) {
+          clearTimeout(timerLoading);
+          timerLoading = null;
+        }
+        if (timerTimeout !== null) {
+          clearTimeout(timerTimeout);
+          timerTimeout = null;
+        }
       }
     };
 
@@ -3677,7 +3687,8 @@ function resolveAsyncComponent (
           if (res.delay === 0) {
             factory.loading = true;
           } else {
-            setTimeout(function () {
+            timerLoading = setTimeout(function () {
+              timerLoading = null;
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
                 forceRender(false);
@@ -3687,7 +3698,8 @@ function resolveAsyncComponent (
         }
 
         if (isDef(res.timeout)) {
-          setTimeout(function () {
+          timerTimeout = setTimeout(function () {
+            timerTimeout = null;
             if (isUndef(factory.resolved)) {
               reject(
                 "timeout (" + (res.timeout) + "ms)"
@@ -4233,16 +4245,21 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (
-  inBrowser &&
-  window.performance &&
-  typeof performance.now === 'function' &&
-  document.createEvent('Event').timeStamp <= performance.now()
-) {
-  // if the event timestamp is bigger than the hi-res timestamp
-  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-  // and we need to use the lo-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
+// All IE versions use low-res event timestamps, and have problematic clock
+// implementations (#9632)
+if (inBrowser && !isIE) {
+  var performance = window.performance;
+  if (
+    performance &&
+    typeof performance.now === 'function' &&
+    getNow() > document.createEvent('Event').timeStamp
+  ) {
+    // if the event timestamp, although evaluated AFTER the Date.now(), is
+    // smaller than it, it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listener timestamps as
+    // well.
+    getNow = function () { return performance.now(); };
+  }
 }
 
 /**
@@ -5407,7 +5424,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.9';
+Vue.version = '2.6.10';
 
 /*  */
 
@@ -6930,10 +6947,11 @@ function updateDOMProps (oldVnode, vnode) {
   }
 
   for (key in oldProps) {
-    if (isUndef(props[key])) {
+    if (!(key in props)) {
       elm[key] = '';
     }
   }
+
   for (key in props) {
     cur = props[key];
     // ignore children if the node has textContent or innerHTML,
diff --git a/dist/vue.runtime.common.prod.js b/dist/vue.runtime.common.prod.js
index 19409c7e522..028e6144816 100644
--- a/dist/vue.runtime.common.prod.js
+++ b/dist/vue.runtime.common.prod.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(t,e){return h.call(t,e)}function y(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}var g=/-(\w)/g,_=y(function(t){return t.replace(g,function(t,e){return e?e.toUpperCase():""})}),b=y(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),C=/\B([A-Z])/g,w=y(function(t){return t.replace(C,"-$1").toLowerCase()});var $=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function x(t,e){for(var n in e)t[n]=e[n];return t}function O(t){for(var e={},n=0;n<t.length;n++)t[n]&&x(e,t[n]);return e}function k(t,e,n){}var S=function(t,e,n){return!1},E=function(t){return t};function j(t,e){if(t===e)return!0;var n=i(t),r=i(e);if(!n||!r)return!n&&!r&&String(t)===String(e);try{var 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fo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){fo.componentUpdated(t,e,n)}):po(t,e,n.context),t._vOptions=[].map.call(t.options,mo)):("textarea"===n.tag||Kn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",yo),t.addEventListener("compositionend",go),t.addEventListener("change",go),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){po(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,mo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return ho(t,o)}):e.value!==e.oldValue&&ho(e.value,o))&&_o(t,"change")}}};function po(t,e,n){vo(t,e,n),(W||K)&&setTimeout(function(){vo(t,e,n)},0)}function vo(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=T(r,mo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(mo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function ho(t,e){return e.every(function(e){return!j(e,t)})}function mo(t){return"_value"in t?t._value:t.value}function yo(t){t.target.composing=!0}function go(t){t.target.composing&&(t.target.composing=!1,_o(t.target,"input"))}function _o(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function bo(t){return!t.componentInstance||t.data&&t.data.transition?t:bo(t.componentInstance._vnode)}var Co={model:fo,show:{bind:function(t,e,n){var r=e.value,o=(n=bo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,io(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=bo(n)).data&&n.data.transition?(n.data.show=!0,r?io(n,function(){t.style.display=t.__vOriginalDisplay}):ao(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},$o={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function wo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?wo(He(e.children)):t}function Ao(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function xo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var Oo=function(t){return t.tag||Ue(t)},ko=function(t){return"show"===t.name},So={name:"transition",props:$o,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(Oo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return xo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Ao(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(ko)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),xo(t,i);if("in-out"===r){if(Ue(a))return u;var p,d=function(){p()};ne(c,"afterEnter",d),ne(c,"enterCancelled",d),ne(f,"delayLeave",function(t){p=t})}}return i}}},Eo=x({tag:String,moveClass:String},$o);function jo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function To(t){t.data.newPos=t.elm.getBoundingClientRect()}function Io(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete Eo.mode;var Do={Transition:So,TransitionGroup:{props:Eo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Ao(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var p=r[f];p.data.transition=a,p.data.pos=p.elm.getBoundingClientRect(),n[p.key]?u.push(p):l.push(p)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(jo),t.forEach(To),t.forEach(Io),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Qr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Kr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Kr,t),n._moveCb=null,Yr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Vr)return!1;if(this._hasMove)return this._hasMove;var 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diff --git a/dist/vue.runtime.esm.js b/dist/vue.runtime.esm.js
index 577d34739c7..05865d39981 100644
--- a/dist/vue.runtime.esm.js
+++ b/dist/vue.runtime.esm.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2541,8 +2541,8 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
-  var isStable = slots ? !!slots.$stable : true;
   var hasNormalSlots = Object.keys(normalSlots).length > 0;
+  var isStable = slots ? !!slots.$stable : !hasNormalSlots;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -3630,7 +3630,9 @@ function resolveAsyncComponent (
 
   if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true
+    var sync = true;
+    var timerLoading = null;
+    var timerTimeout = null
 
     ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -3641,6 +3643,14 @@ function resolveAsyncComponent (
 
       if (renderCompleted) {
         owners.length = 0;
+        if (timerLoading !== null) {
+          clearTimeout(timerLoading);
+          timerLoading = null;
+        }
+        if (timerTimeout !== null) {
+          clearTimeout(timerTimeout);
+          timerTimeout = null;
+        }
       }
     };
 
@@ -3687,7 +3697,8 @@ function resolveAsyncComponent (
           if (res.delay === 0) {
             factory.loading = true;
           } else {
-            setTimeout(function () {
+            timerLoading = setTimeout(function () {
+              timerLoading = null;
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
                 forceRender(false);
@@ -3697,7 +3708,8 @@ function resolveAsyncComponent (
         }
 
         if (isDef(res.timeout)) {
-          setTimeout(function () {
+          timerTimeout = setTimeout(function () {
+            timerTimeout = null;
             if (isUndef(factory.resolved)) {
               reject(
                 process.env.NODE_ENV !== 'production'
@@ -4245,16 +4257,21 @@ var getNow = Date.now;
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (
-  inBrowser &&
-  window.performance &&
-  typeof performance.now === 'function' &&
-  document.createEvent('Event').timeStamp <= performance.now()
-) {
-  // if the event timestamp is bigger than the hi-res timestamp
-  // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-  // and we need to use the lo-res version for event listeners as well.
-  getNow = function () { return performance.now(); };
+// All IE versions use low-res event timestamps, and have problematic clock
+// implementations (#9632)
+if (inBrowser && !isIE) {
+  var performance = window.performance;
+  if (
+    performance &&
+    typeof performance.now === 'function' &&
+    getNow() > document.createEvent('Event').timeStamp
+  ) {
+    // if the event timestamp, although evaluated AFTER the Date.now(), is
+    // smaller than it, it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listener timestamps as
+    // well.
+    getNow = function () { return performance.now(); };
+  }
 }
 
 /**
@@ -5427,7 +5444,7 @@ Object.defineProperty(Vue, 'FunctionalRenderContext', {
   value: FunctionalRenderContext
 });
 
-Vue.version = '2.6.9';
+Vue.version = '2.6.10';
 
 /*  */
 
@@ -6952,10 +6969,11 @@ function updateDOMProps (oldVnode, vnode) {
   }
 
   for (key in oldProps) {
-    if (isUndef(props[key])) {
+    if (!(key in props)) {
       elm[key] = '';
     }
   }
+
   for (key in props) {
     cur = props[key];
     // ignore children if the node has textContent or innerHTML,
diff --git a/dist/vue.runtime.js b/dist/vue.runtime.js
index cd45077739a..5d1221063ca 100644
--- a/dist/vue.runtime.js
+++ b/dist/vue.runtime.js
@@ -1,5 +1,5 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
@@ -2539,8 +2539,8 @@
     prevSlots
   ) {
     var res;
-    var isStable = slots ? !!slots.$stable : true;
     var hasNormalSlots = Object.keys(normalSlots).length > 0;
+    var isStable = slots ? !!slots.$stable : !hasNormalSlots;
     var key = slots && slots.$key;
     if (!slots) {
       res = {};
@@ -3624,7 +3624,9 @@
 
     if (owner && !isDef(factory.owners)) {
       var owners = factory.owners = [owner];
-      var sync = true
+      var sync = true;
+      var timerLoading = null;
+      var timerTimeout = null
 
       ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -3635,6 +3637,14 @@
 
         if (renderCompleted) {
           owners.length = 0;
+          if (timerLoading !== null) {
+            clearTimeout(timerLoading);
+            timerLoading = null;
+          }
+          if (timerTimeout !== null) {
+            clearTimeout(timerTimeout);
+            timerTimeout = null;
+          }
         }
       };
 
@@ -3681,7 +3691,8 @@
             if (res.delay === 0) {
               factory.loading = true;
             } else {
-              setTimeout(function () {
+              timerLoading = setTimeout(function () {
+                timerLoading = null;
                 if (isUndef(factory.resolved) && isUndef(factory.error)) {
                   factory.loading = true;
                   forceRender(false);
@@ -3691,7 +3702,8 @@
           }
 
           if (isDef(res.timeout)) {
-            setTimeout(function () {
+            timerTimeout = setTimeout(function () {
+              timerTimeout = null;
               if (isUndef(factory.resolved)) {
                 reject(
                   "timeout (" + (res.timeout) + "ms)"
@@ -4237,16 +4249,21 @@
   // timestamp can either be hi-res (relative to page load) or low-res
   // (relative to UNIX epoch), so in order to compare time we have to use the
   // same timestamp type when saving the flush timestamp.
-  if (
-    inBrowser &&
-    window.performance &&
-    typeof performance.now === 'function' &&
-    document.createEvent('Event').timeStamp <= performance.now()
-  ) {
-    // if the event timestamp is bigger than the hi-res timestamp
-    // (which is evaluated AFTER) it means the event is using a lo-res timestamp,
-    // and we need to use the lo-res version for event listeners as well.
-    getNow = function () { return performance.now(); };
+  // All IE versions use low-res event timestamps, and have problematic clock
+  // implementations (#9632)
+  if (inBrowser && !isIE) {
+    var performance = window.performance;
+    if (
+      performance &&
+      typeof performance.now === 'function' &&
+      getNow() > document.createEvent('Event').timeStamp
+    ) {
+      // if the event timestamp, although evaluated AFTER the Date.now(), is
+      // smaller than it, it means the event is using a hi-res timestamp,
+      // and we need to use the hi-res version for event listener timestamps as
+      // well.
+      getNow = function () { return performance.now(); };
+    }
   }
 
   /**
@@ -5411,7 +5428,7 @@
     value: FunctionalRenderContext
   });
 
-  Vue.version = '2.6.9';
+  Vue.version = '2.6.10';
 
   /*  */
 
@@ -6934,10 +6951,11 @@
     }
 
     for (key in oldProps) {
-      if (isUndef(props[key])) {
+      if (!(key in props)) {
         elm[key] = '';
       }
     }
+
     for (key in props) {
       cur = props[key];
       // ignore children if the node has textContent or innerHTML,
diff --git a/dist/vue.runtime.min.js b/dist/vue.runtime.min.js
index c33a633208e..a1d20a58df5 100644
--- a/dist/vue.runtime.min.js
+++ b/dist/vue.runtime.min.js
@@ -1,6 +1,6 @@
 /*!
- * Vue.js v2.6.9
+ * Vue.js v2.6.10
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t=t||self).Vue=e()}(this,function(){"use strict";var t=Object.freeze({});function e(t){return null==t}function n(t){return null!=t}function r(t){return!0===t}function o(t){return"string"==typeof t||"number"==typeof t||"symbol"==typeof t||"boolean"==typeof t}function i(t){return null!==t&&"object"==typeof t}var a=Object.prototype.toString;function s(t){return"[object Object]"===a.call(t)}function c(t){var e=parseFloat(String(t));return e>=0&&Math.floor(e)===e&&isFinite(t)}function u(t){return n(t)&&"function"==typeof t.then&&"function"==typeof t.catch}function l(t){return null==t?"":Array.isArray(t)||s(t)&&t.toString===a?JSON.stringify(t,null,2):String(t)}function f(t){var e=parseFloat(t);return isNaN(e)?t:e}function p(t,e){for(var n=Object.create(null),r=t.split(","),o=0;o<r.length;o++)n[r[o]]=!0;return e?function(t){return n[t.toLowerCase()]}:function(t){return n[t]}}var d=p("key,ref,slot,slot-scope,is");function v(t,e){if(t.length){var n=t.indexOf(e);if(n>-1)return t.splice(n,1)}}var h=Object.prototype.hasOwnProperty;function m(t,e){return h.call(t,e)}function y(t){var e=Object.create(null);return function(n){return e[n]||(e[n]=t(n))}}var g=/-(\w)/g,_=y(function(t){return t.replace(g,function(t,e){return e?e.toUpperCase():""})}),b=y(function(t){return t.charAt(0).toUpperCase()+t.slice(1)}),C=/\B([A-Z])/g,w=y(function(t){return t.replace(C,"-$1").toLowerCase()});var $=Function.prototype.bind?function(t,e){return t.bind(e)}:function(t,e){function n(n){var r=arguments.length;return r?r>1?t.apply(e,arguments):t.call(e,n):t.call(e)}return n._length=t.length,n};function A(t,e){e=e||0;for(var n=t.length-e,r=new Array(n);n--;)r[n]=t[n+e];return r}function x(t,e){for(var n in e)t[n]=e[n];return t}function O(t){for(var e={},n=0;n<t.length;n++)t[n]&&x(e,t[n]);return e}function k(t,e,n){}var 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O=d("attrs,class,staticClass,staticStyle,key");function k(t,e,o,i){var a,s=e.tag,c=e.data,u=e.children;if(i=i||c&&c.pre,e.elm=t,r(e.isComment)&&n(e.asyncFactory))return e.isAsyncPlaceholder=!0,!0;if(n(c)&&(n(a=c.hook)&&n(a=a.init)&&a(e,!0),n(a=e.componentInstance)))return p(e,o),!0;if(n(s)){if(n(u))if(t.hasChildNodes())if(n(a=c)&&n(a=a.domProps)&&n(a=a.innerHTML)){if(a!==t.innerHTML)return!1}else{for(var l=!0,f=t.firstChild,d=0;d<u.length;d++){if(!f||!k(f,u[d],o,i)){l=!1;break}f=f.nextSibling}if(!l||f)return!1}else h(e,u,o);if(n(c)){var v=!1;for(var m in c)if(!O(m)){v=!0,y(e,o);break}!v&&c.class&&Qt(c.class)}}else t.data!==e.text&&(t.data=e.text);return!0}return function(t,o,i,a){if(!e(o)){var c,l=!1,d=[];if(e(t))l=!0,f(o,d);else{var p=n(t.nodeType);if(!p&&Yn(t,o))A(t,o,d,null,null,a);else{if(p){if(1===t.nodeType&&t.hasAttribute(D)&&(t.removeAttribute(D),i=!0),r(i)&&k(t,o,d))return x(o,d,!0),t;c=t,t=new lt(u.tagName(c).toLowerCase(),{},[],void 0,c)}var v=t.elm,h=u.parentNode(v);if(f(o,d,v._leaveCb?null:h,u.nextSibling(v)),n(o.parent))for(var y=o.parent,g=m(o);y;){for(var _=0;_<s.destroy.length;++_)s.destroy[_](y);if(y.elm=o.elm,g){for(var $=0;$<s.create.length;++$)s.create[$](Jn,y);var w=y.data.hook.insert;if(w.merged)for(var O=1;O<w.fns.length;O++)w.fns[O]()}else Zn(y);y=y.parent}n(h)?C(0,[t],0,0):n(t.tag)&&b(t)}}return x(o,d,l),o.elm}n(t)&&b(t)}}({nodeOps:Xn,modules:[fr,vr,wr,Or,Mr,H?{create:uo,activate:uo,remove:function(t,e){!0!==t.data.show?ao(t,e):e()}}:{}].concat(sr)});q&&document.addEventListener("selectionchange",function(){var t=document.activeElement;t&&t.vmodel&&_o(t,"input")});var fo={inserted:function(t,e,n,r){"select"===n.tag?(r.elm&&!r.elm._vOptions?ne(n,"postpatch",function(){fo.componentUpdated(t,e,n)}):po(t,e,n.context),t._vOptions=[].map.call(t.options,mo)):("textarea"===n.tag||Kn(t.type))&&(t._vModifiers=e.modifiers,e.modifiers.lazy||(t.addEventListener("compositionstart",yo),t.addEventListener("compositionend",go),t.addEventListener("change",go),q&&(t.vmodel=!0)))},componentUpdated:function(t,e,n){if("select"===n.tag){po(t,e,n.context);var r=t._vOptions,o=t._vOptions=[].map.call(t.options,mo);if(o.some(function(t,e){return!j(t,r[e])}))(t.multiple?e.value.some(function(t){return ho(t,o)}):e.value!==e.oldValue&&ho(e.value,o))&&_o(t,"change")}}};function po(t,e,n){vo(t,e,n),(W||K)&&setTimeout(function(){vo(t,e,n)},0)}function vo(t,e,n){var r=e.value,o=t.multiple;if(!o||Array.isArray(r)){for(var i,a,s=0,c=t.options.length;s<c;s++)if(a=t.options[s],o)i=T(r,mo(a))>-1,a.selected!==i&&(a.selected=i);else if(j(mo(a),r))return void(t.selectedIndex!==s&&(t.selectedIndex=s));o||(t.selectedIndex=-1)}}function ho(t,e){return e.every(function(e){return!j(e,t)})}function mo(t){return"_value"in t?t._value:t.value}function yo(t){t.target.composing=!0}function go(t){t.target.composing&&(t.target.composing=!1,_o(t.target,"input"))}function _o(t,e){var n=document.createEvent("HTMLEvents");n.initEvent(e,!0,!0),t.dispatchEvent(n)}function bo(t){return!t.componentInstance||t.data&&t.data.transition?t:bo(t.componentInstance._vnode)}var Co={model:fo,show:{bind:function(t,e,n){var r=e.value,o=(n=bo(n)).data&&n.data.transition,i=t.__vOriginalDisplay="none"===t.style.display?"":t.style.display;r&&o?(n.data.show=!0,io(n,function(){t.style.display=i})):t.style.display=r?i:"none"},update:function(t,e,n){var r=e.value;!r!=!e.oldValue&&((n=bo(n)).data&&n.data.transition?(n.data.show=!0,r?io(n,function(){t.style.display=t.__vOriginalDisplay}):ao(n,function(){t.style.display="none"})):t.style.display=r?t.__vOriginalDisplay:"none")},unbind:function(t,e,n,r,o){o||(t.style.display=t.__vOriginalDisplay)}}},$o={name:String,appear:Boolean,css:Boolean,mode:String,type:String,enterClass:String,leaveClass:String,enterToClass:String,leaveToClass:String,enterActiveClass:String,leaveActiveClass:String,appearClass:String,appearActiveClass:String,appearToClass:String,duration:[Number,String,Object]};function wo(t){var e=t&&t.componentOptions;return e&&e.Ctor.options.abstract?wo(He(e.children)):t}function Ao(t){var e={},n=t.$options;for(var r in n.propsData)e[r]=t[r];var o=n._parentListeners;for(var i in o)e[_(i)]=o[i];return e}function xo(t,e){if(/\d-keep-alive$/.test(e.tag))return t("keep-alive",{props:e.componentOptions.propsData})}var Oo=function(t){return t.tag||Ue(t)},ko=function(t){return"show"===t.name},So={name:"transition",props:$o,abstract:!0,render:function(t){var e=this,n=this.$slots.default;if(n&&(n=n.filter(Oo)).length){var r=this.mode,i=n[0];if(function(t){for(;t=t.parent;)if(t.data.transition)return!0}(this.$vnode))return i;var a=wo(i);if(!a)return i;if(this._leaving)return xo(t,i);var s="__transition-"+this._uid+"-";a.key=null==a.key?a.isComment?s+"comment":s+a.tag:o(a.key)?0===String(a.key).indexOf(s)?a.key:s+a.key:a.key;var c=(a.data||(a.data={})).transition=Ao(this),u=this._vnode,l=wo(u);if(a.data.directives&&a.data.directives.some(ko)&&(a.data.show=!0),l&&l.data&&!function(t,e){return e.key===t.key&&e.tag===t.tag}(a,l)&&!Ue(l)&&(!l.componentInstance||!l.componentInstance._vnode.isComment)){var f=l.data.transition=x({},c);if("out-in"===r)return this._leaving=!0,ne(f,"afterLeave",function(){e._leaving=!1,e.$forceUpdate()}),xo(t,i);if("in-out"===r){if(Ue(a))return u;var d,p=function(){d()};ne(c,"afterEnter",p),ne(c,"enterCancelled",p),ne(f,"delayLeave",function(t){d=t})}}return i}}},Eo=x({tag:String,moveClass:String},$o);function jo(t){t.elm._moveCb&&t.elm._moveCb(),t.elm._enterCb&&t.elm._enterCb()}function To(t){t.data.newPos=t.elm.getBoundingClientRect()}function Io(t){var e=t.data.pos,n=t.data.newPos,r=e.left-n.left,o=e.top-n.top;if(r||o){t.data.moved=!0;var i=t.elm.style;i.transform=i.WebkitTransform="translate("+r+"px,"+o+"px)",i.transitionDuration="0s"}}delete Eo.mode;var Do={Transition:So,TransitionGroup:{props:Eo,beforeMount:function(){var t=this,e=this._update;this._update=function(n,r){var o=Ke(t);t.__patch__(t._vnode,t.kept,!1,!0),t._vnode=t.kept,o(),e.call(t,n,r)}},render:function(t){for(var e=this.tag||this.$vnode.data.tag||"span",n=Object.create(null),r=this.prevChildren=this.children,o=this.$slots.default||[],i=this.children=[],a=Ao(this),s=0;s<o.length;s++){var c=o[s];c.tag&&null!=c.key&&0!==String(c.key).indexOf("__vlist")&&(i.push(c),n[c.key]=c,(c.data||(c.data={})).transition=a)}if(r){for(var u=[],l=[],f=0;f<r.length;f++){var d=r[f];d.data.transition=a,d.data.pos=d.elm.getBoundingClientRect(),n[d.key]?u.push(d):l.push(d)}this.kept=t(e,null,u),this.removed=l}return t(e,null,i)},updated:function(){var t=this.prevChildren,e=this.moveClass||(this.name||"v")+"-move";t.length&&this.hasMove(t[0].elm,e)&&(t.forEach(jo),t.forEach(To),t.forEach(Io),this._reflow=document.body.offsetHeight,t.forEach(function(t){if(t.data.moved){var n=t.elm,r=n.style;Qr(n,e),r.transform=r.WebkitTransform=r.transitionDuration="",n.addEventListener(Kr,n._moveCb=function t(r){r&&r.target!==n||r&&!/transform$/.test(r.propertyName)||(n.removeEventListener(Kr,t),n._moveCb=null,Yr(n,e))})}}))},methods:{hasMove:function(t,e){if(!Br)return!1;if(this._hasMove)return this._hasMove;var 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t.$el=e,t.$options.render||(t.$options.render=dt),Ze(t,"beforeMount"),r=function(){t._update(t._render(),n)},new un(t,r,k,{before:function(){t._isMounted&&!t._isDestroyed&&Ze(t,"beforeUpdate")}},!0),n=!1,null==t.$vnode&&(t._isMounted=!0,Ze(t,"mounted")),t}(this,t=t&&H?function(t){if("string"==typeof t){var e=document.querySelector(t);return e||document.createElement("div")}return t}(t):void 0,e)},H&&setTimeout(function(){L.devtools&&tt&&tt.emit("init",bn)},0),bn});
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diff --git a/packages/vue-server-renderer/basic.js b/packages/vue-server-renderer/basic.js
index 292790ab374..96ceea7433e 100644
--- a/packages/vue-server-renderer/basic.js
+++ b/packages/vue-server-renderer/basic.js
@@ -5032,7 +5032,7 @@
 
   /*  */
 
-  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
   var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -7571,8 +7571,8 @@
     prevSlots
   ) {
     var res;
-    var isStable = slots ? !!slots.$stable : true;
     var hasNormalSlots = Object.keys(normalSlots).length > 0;
+    var isStable = slots ? !!slots.$stable : !hasNormalSlots;
     var key = slots && slots.$key;
     if (!slots) {
       res = {};
@@ -7699,7 +7699,9 @@
 
     if (owner && !isDef(factory.owners)) {
       var owners = factory.owners = [owner];
-      var sync = true
+      var sync = true;
+      var timerLoading = null;
+      var timerTimeout = null
 
       ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -7710,6 +7712,14 @@
 
         if (renderCompleted) {
           owners.length = 0;
+          if (timerLoading !== null) {
+            clearTimeout(timerLoading);
+            timerLoading = null;
+          }
+          if (timerTimeout !== null) {
+            clearTimeout(timerTimeout);
+            timerTimeout = null;
+          }
         }
       };
 
@@ -7756,7 +7766,8 @@
             if (res.delay === 0) {
               factory.loading = true;
             } else {
-              setTimeout(function () {
+              timerLoading = setTimeout(function () {
+                timerLoading = null;
                 if (isUndef(factory.resolved) && isUndef(factory.error)) {
                   factory.loading = true;
                   forceRender(false);
@@ -7766,7 +7777,8 @@
           }
 
           if (isDef(res.timeout)) {
-            setTimeout(function () {
+            timerTimeout = setTimeout(function () {
+              timerTimeout = null;
               if (isUndef(factory.resolved)) {
                 reject(
                   "timeout (" + (res.timeout) + "ms)"
@@ -7959,16 +7971,29 @@
 
   /*  */
 
+  // Async edge case fix requires storing an event listener's attach timestamp.
+  var getNow = Date.now;
+
   // Determine what event timestamp the browser is using. Annoyingly, the
   // timestamp can either be hi-res (relative to page load) or low-res
   // (relative to UNIX epoch), so in order to compare time we have to use the
   // same timestamp type when saving the flush timestamp.
-  if (
-    inBrowser &&
-    window.performance &&
-    typeof performance.now === 'function' &&
-    document.createEvent('Event').timeStamp <= performance.now()
-  ) ;
+  // All IE versions use low-res event timestamps, and have problematic clock
+  // implementations (#9632)
+  if (inBrowser && !isIE) {
+    var performance = window.performance;
+    if (
+      performance &&
+      typeof performance.now === 'function' &&
+      getNow() > document.createEvent('Event').timeStamp
+    ) {
+      // if the event timestamp, although evaluated AFTER the Date.now(), is
+      // smaller than it, it means the event is using a hi-res timestamp,
+      // and we need to use the hi-res version for event listener timestamps as
+      // well.
+      getNow = function () { return performance.now(); };
+    }
+  }
 
   /**
    * Queue a kept-alive component that was activated during patch.
diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 3334583ada4..e1324185219 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -4782,7 +4782,7 @@ var baseOptions = {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
@@ -7321,8 +7321,8 @@ function normalizeScopedSlots (
   prevSlots
 ) {
   var res;
-  var isStable = slots ? !!slots.$stable : true;
   var hasNormalSlots = Object.keys(normalSlots).length > 0;
+  var isStable = slots ? !!slots.$stable : !hasNormalSlots;
   var key = slots && slots.$key;
   if (!slots) {
     res = {};
@@ -7449,7 +7449,9 @@ function resolveAsyncComponent (
 
   if (owner && !isDef(factory.owners)) {
     var owners = factory.owners = [owner];
-    var sync = true
+    var sync = true;
+    var timerLoading = null;
+    var timerTimeout = null
 
     ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });
 
@@ -7460,6 +7462,14 @@ function resolveAsyncComponent (
 
       if (renderCompleted) {
         owners.length = 0;
+        if (timerLoading !== null) {
+          clearTimeout(timerLoading);
+          timerLoading = null;
+        }
+        if (timerTimeout !== null) {
+          clearTimeout(timerTimeout);
+          timerTimeout = null;
+        }
       }
     };
 
@@ -7506,7 +7516,8 @@ function resolveAsyncComponent (
           if (res.delay === 0) {
             factory.loading = true;
           } else {
-            setTimeout(function () {
+            timerLoading = setTimeout(function () {
+              timerLoading = null;
               if (isUndef(factory.resolved) && isUndef(factory.error)) {
                 factory.loading = true;
                 forceRender(false);
@@ -7516,7 +7527,8 @@ function resolveAsyncComponent (
         }
 
         if (isDef(res.timeout)) {
-          setTimeout(function () {
+          timerTimeout = setTimeout(function () {
+            timerTimeout = null;
             if (isUndef(factory.resolved)) {
               reject(
                 "timeout (" + (res.timeout) + "ms)"
@@ -7709,16 +7721,29 @@ function callHook (vm, hook) {
 
 /*  */
 
+// Async edge case fix requires storing an event listener's attach timestamp.
+var getNow = Date.now;
+
 // Determine what event timestamp the browser is using. Annoyingly, the
 // timestamp can either be hi-res (relative to page load) or low-res
 // (relative to UNIX epoch), so in order to compare time we have to use the
 // same timestamp type when saving the flush timestamp.
-if (
-  inBrowser &&
-  window.performance &&
-  typeof performance.now === 'function' &&
-  document.createEvent('Event').timeStamp <= performance.now()
-) ;
+// All IE versions use low-res event timestamps, and have problematic clock
+// implementations (#9632)
+if (inBrowser && !isIE) {
+  var performance = window.performance;
+  if (
+    performance &&
+    typeof performance.now === 'function' &&
+    getNow() > document.createEvent('Event').timeStamp
+  ) {
+    // if the event timestamp, although evaluated AFTER the Date.now(), is
+    // smaller than it, it means the event is using a hi-res timestamp,
+    // and we need to use the hi-res version for event listener timestamps as
+    // well.
+    getNow = function () { return performance.now(); };
+  }
+}
 
 /**
  * Queue a kept-alive component that was activated during patch.
diff --git a/packages/vue-server-renderer/build.prod.js b/packages/vue-server-renderer/build.prod.js
index 54b3b10e8fa..59749e9897b 100644
--- a/packages/vue-server-renderer/build.prod.js
+++ b/packages/vue-server-renderer/build.prod.js
@@ -1 +1 @@
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Set),n.renderStates.push({type:"ComponentWithCache",key:r,buffer:o,bufferIndex:a,componentBuffer:s}),io(e,t,n)}function io(e,t,r){var n=r.activeInstance;e.ssrContext=r.userContext;var i=r.activeInstance=Vi(e,r.activeInstance);Qi(i);var o=r.done;Yi(i,function(){var o=i._render();o.parent=e,r.renderStates.push({type:"Component",prevActive:n}),eo(o,t,r)},o)}function oo(e,t,r,n){return function(i,o,a,s){Zi=Object.create(null);var c=new _t({activeInstance:i,userContext:a,write:o,done:s,renderNode:eo,isUnaryTag:r,modules:e,directives:t,cache:n});!function(e){if(!e._ssrNode){for(var t=e.constructor;t.super;)t=t.super;A(t.prototype,ti),t.FunctionalRenderContext&&A(t.FunctionalRenderContext.prototype,ti)}}(i),Qi(i);Yi(i,function(){eo(i._render(),!0,c)},s)}}var ao=function(e){return/\.js(\?[^.]+)?$/.test(e)};function so(){var e,t;return{promise:new Promise(function(r,n){e=r,t=n}),cb:function(r,n){if(r)return t(r);e(n||"")}}}var co=function(e){function t(t,r,n){e.call(this),this.started=!1,this.renderer=t,this.template=r,this.context=n||{},this.inject=t.inject}return e&&(t.__proto__=e),t.prototype=Object.create(e&&e.prototype),t.prototype.constructor=t,t.prototype._transform=function(e,t,r){this.started||(this.emit("beforeStart"),this.start()),this.push(e),r()},t.prototype.start=function(){if(this.started=!0,this.push(this.template.head(this.context)),this.inject){this.context.head&&this.push(this.context.head);var e=this.renderer.renderResourceHints(this.context);e&&this.push(e);var t=this.renderer.renderStyles(this.context);t&&this.push(t)}this.push(this.template.neck(this.context))},t.prototype._flush=function(e){if(this.emit("beforeEnd"),this.inject){var t=this.renderer.renderState(this.context);t&&this.push(t);var r=this.renderer.renderScripts(this.context);r&&this.push(r)}this.push(this.template.tail(this.context)),e()},t}(require("stream").Transform),uo=require("lodash.template"),lo={escape:/{{([^{][\s\S]+?[^}])}}/g,interpolate:/{{{([\s\S]+?)}}}/g};function fo(e){var t=function(e){var t=new Map;return Object.keys(e.modules).forEach(function(r){t.set(r,function(e,t){var r=[],n=t.modules[e];return n&&n.forEach(function(e){var n=t.all[e];(t.async.indexOf(n)>-1||!/\.(js|css)($|\?)/.test(n))&&r.push(n)}),r}(r,e))}),t}(e);return function(e){for(var r=new Set,n=0;n<e.length;n++){var i=t.get(e[n]);if(i)for(var o=0;o<i.length;o++)r.add(i[o])}return Array.from(r)}}var po=require("path"),vo=require("serialize-javascript"),ho=function(e){this.options=e,this.inject=!1!==e.inject;var t=e.template;if(this.parsedTemplate=t?"string"==typeof t?function(e,t){if(void 0===t&&(t="\x3c!--vue-ssr-outlet--\x3e"),"object"==typeof e)return e;var r=e.indexOf("</head>"),n=e.indexOf(t);if(n<0)throw new Error("Content placeholder not found in template.");return r<0&&(r=e.indexOf("<body>"))<0&&(r=n),{head:uo(e.slice(0,r),lo),neck:uo(e.slice(r,n),lo),tail:uo(e.slice(n+t.length),lo)}}(t):t:null,this.serialize=e.serializer||function(e){return vo(e,{isJSON:!0})},e.clientManifest){var r=this.clientManifest=e.clientManifest;this.publicPath=""===r.publicPath?"":r.publicPath.replace(/([^\/])$/,"$1/"),this.preloadFiles=(r.initial||[]).map(mo),this.prefetchFiles=(r.async||[]).map(mo),this.mapFiles=fo(r)}};function mo(e){var t=e.replace(/\?.*/,""),r=po.extname(t).slice(1);return{file:e,extension:r,fileWithoutQuery:t,asType:yo(r)}}function yo(e){return"js"===e?"script":"css"===e?"style":/jpe?g|png|svg|gif|webp|ico/.test(e)?"image":/woff2?|ttf|otf|eot/.test(e)?"font":""}ho.prototype.bindRenderFns=function(e){var t=this;["ResourceHints","State","Scripts","Styles"].forEach(function(r){e["render"+r]=t["render"+r].bind(t,e)}),e.getPreloadFiles=t.getPreloadFiles.bind(t,e)},ho.prototype.render=function(e,t){var r=this.parsedTemplate;if(!r)throw new Error("render cannot be called without a template.");return t=t||{},"function"==typeof r?r(e,t):this.inject?r.head(t)+(t.head||"")+this.renderResourceHints(t)+this.renderStyles(t)+r.neck(t)+e+this.renderState(t)+this.renderScripts(t)+r.tail(t):r.head(t)+r.neck(t)+e+r.tail(t)},ho.prototype.renderStyles=function(e){var t=this,r=this.preloadFiles||[],n=this.getUsedAsyncFiles(e)||[],i=r.concat(n).filter(function(e){return function(e){return/\.css(\?[^.]+)?$/.test(e)}(e.file)});return(i.length?i.map(function(e){var r=e.file;return'<link rel="stylesheet" href="'+t.publicPath+r+'">'}).join(""):"")+(e.styles||"")},ho.prototype.renderResourceHints=function(e){return this.renderPreloadLinks(e)+this.renderPrefetchLinks(e)},ho.prototype.getPreloadFiles=function(e){var t=this.getUsedAsyncFiles(e);return this.preloadFiles||t?(this.preloadFiles||[]).concat(t||[]):[]},ho.prototype.renderPreloadLinks=function(e){var t=this,r=this.getPreloadFiles(e),n=this.options.shouldPreload;return r.length?r.map(function(e){var r=e.file,i=e.extension,o=e.fileWithoutQuery,a=e.asType,s="";return n||"script"===a||"style"===a?n&&!n(o,a)?"":("font"===a&&(s=' type="font/'+i+'" crossorigin'),'<link rel="preload" href="'+t.publicPath+r+'"'+(""!==a?' as="'+a+'"':"")+s+">"):""}).join(""):""},ho.prototype.renderPrefetchLinks=function(e){var t=this,r=this.options.shouldPrefetch;if(this.prefetchFiles){var n=this.getUsedAsyncFiles(e);return this.prefetchFiles.map(function(e){var i=e.file,o=e.fileWithoutQuery,a=e.asType;return r&&!r(o,a)?"":function(e){return n&&n.some(function(t){return t.file===e})}(i)?"":'<link rel="prefetch" href="'+t.publicPath+i+'">'}).join("")}return""},ho.prototype.renderState=function(e,t){var r=t||{},n=r.contextKey;void 0===n&&(n="state");var i=r.windowKey;void 0===i&&(i="__INITIAL_STATE__");var o=this.serialize(e[n]),a=e.nonce?' nonce="'+e.nonce+'"':"";return e[n]?"<script"+a+">window."+i+"="+o+";(function(){var s;(s=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(s);}());<\/script>":""},ho.prototype.renderScripts=function(e){var t=this;if(this.clientManifest){var r=this.preloadFiles.filter(function(e){var t=e.file;return ao(t)}),n=(this.getUsedAsyncFiles(e)||[]).filter(function(e){var t=e.file;return ao(t)});return[r[0]].concat(n,r.slice(1)).map(function(e){var r=e.file;return'<script src="'+t.publicPath+r+'" defer><\/script>'}).join("")}return""},ho.prototype.getUsedAsyncFiles=function(e){if(!e._mappedFiles&&e._registeredComponents&&this.mapFiles){var t=Array.from(e._registeredComponents);e._mappedFiles=this.mapFiles(t).map(mo)}return e._mappedFiles},ho.prototype.createStream=function(e){if(!this.parsedTemplate)throw new Error("createStream cannot be called without a template.");return new co(this,this.parsedTemplate,e||{})};var go=require("vm"),bo=require("path"),_o=require("resolve"),wo=require("module");function xo(e){var t={Buffer:Buffer,console:console,process:process,setTimeout:setTimeout,setInterval:setInterval,setImmediate:setImmediate,clearTimeout:clearTimeout,clearInterval:clearInterval,clearImmediate:clearImmediate,__VUE_SSR_CONTEXT__:e};return t.global=t,t}function So(e,t,r){var n={},i={};return function o(a,s,c){if(void 0===c&&(c={}),c[a])return c[a];var u=function(t){if(n[t])return n[t];var r=e[t],i=wo.wrap(r),o=new go.Script(i,{filename:t,displayErrors:!0});return n[t]=o,o}(a),l={exports:{}};(!1===r?u.runInThisContext():u.runInNewContext(s)).call(l.exports,l.exports,function(r){return r=bo.posix.join(".",r),e[r]?o(r,s,c):t?require(i[r]||(i[r]=_o.sync(r,{basedir:t}))):require(r)},l);var f=Object.prototype.hasOwnProperty.call(l.exports,"default")?l.exports.default:l.exports;return c[a]=f,f}}function $o(e,t,r,n){var i,o,a=So(t,r,n);return!1!==n&&"once"!==n?function(t){return void 0===t&&(t={}),new Promise(function(r){t._registeredComponents=new Set;var n=a(e,xo(t));r("function"==typeof n?n(t):n)})}:function(t){return void 0===t&&(t={}),new Promise(function(r){if(!i){var s="once"===n?xo():global;if(o=s.__VUE_SSR_CONTEXT__={},i=a(e,s),delete s.__VUE_SSR_CONTEXT__,"function"!=typeof i)throw new Error("bundle export should be a function when using { runInNewContext: false }.")}if(t._registeredComponents=new Set,o._styles){t._styles=function e(t){if(u(t)){var r={};for(var n in t)r[n]=e(t[n]);return r}return Array.isArray(t)?t.slice():t}(o._styles);var c=o._renderStyles;c&&Object.defineProperty(t,"styles",{enumerable:!0,get:function(){return c(t._styles)}})}r(i(t))})}}var Ao=require("source-map").SourceMapConsumer,Oo=/\(([^)]+\.js):(\d+):(\d+)\)$/;function ko(e,t){e&&"string"==typeof e.stack&&(e.stack=e.stack.split("\n").map(function(e){return function(e,t){var r=e.match(Oo),n=r&&t[r[1]];if(null!=r&&n){var i=n.originalPositionFor({line:Number(r[2]),column:Number(r[3])});if(null!=i.source){var o=i.source,a=i.line,s=i.column,c="("+o.replace(/^webpack:\/\/\//,"")+":"+String(a)+":"+String(s)+")";return e.replace(Oo,c)}return e}return e}(e,t)}).join("\n"))}var Co=require("fs"),To=require("path"),Fo=require("stream").PassThrough,jo="Invalid server-rendering bundle format. Should be a string or a bundle Object of type:\n\n{\n  entry: string;\n  files: { [filename: string]: string; };\n  maps: { [filename: string]: string; };\n}\n";function Po(e){return void 0===e&&(e={}),function(e){void 0===e&&(e={});var t=e.modules;void 0===t&&(t=[]);var r=e.directives;void 0===r&&(r={});var n=e.isUnaryTag;void 0===n&&(n=function(){return!1});var i=e.template,o=e.inject,a=e.cache,s=e.shouldPreload,c=e.shouldPrefetch,u=e.clientManifest,l=e.serializer,f=oo(t,r,n,a),p=new ho({template:i,inject:o,shouldPreload:s,shouldPrefetch:c,clientManifest:u,serializer:l});return{renderToString:function(e,t,r){var n,o;"function"==typeof t&&(r=t,t={}),t&&p.bindRenderFns(t),r||(o=(n=so()).promise,r=n.cb);var a="",s=gt(function(e){return a+=e,!1},r);try{f(e,s,t,function(e){if(e)return r(e);if(t&&t.rendered&&t.rendered(t),i)try{var n=p.render(a,t);"string"!=typeof n?n.then(function(e){return r(null,e)}).catch(r):r(null,n)}catch(e){r(e)}else r(null,a)})}catch(e){r(e)}return o},renderToStream:function(e,t){t&&p.bindRenderFns(t);var r=new bt(function(r,n){f(e,r,t,n)});if(i){if("function"==typeof i)throw new Error("function template is only supported in renderToString.");var n=p.createStream(t);if(r.on("error",function(e){n.emit("error",e)}),r.pipe(n),t&&t.rendered){var o=t.rendered;r.once("beforeEnd",function(){o(t)})}return n}if(t&&t.rendered){var a=t.rendered;r.once("beforeEnd",function(){a(t)})}return r}}}(A(A({},e),{isUnaryTag:pt,canBeLeftOpenTag:dt,modules:ct,directives:A(ft,e.directives)}))}process.env.VUE_ENV="server";var Eo=function(e){return function(t,r){var n,i,o;void 0===r&&(r={});var a=r.basedir;if("string"==typeof t&&/\.js(on)?$/.test(t)&&To.isAbsolute(t)){if(!Co.existsSync(t))throw new Error("Cannot locate bundle file: "+t);var s=/\.json$/.test(t);if(a=a||To.dirname(t),t=Co.readFileSync(t,"utf-8"),s)try{t=JSON.parse(t)}catch(e){throw new Error("Invalid JSON bundle file: "+t)}}if("object"==typeof t){if(i=t.entry,n=t.files,a=a||t.basedir,o=function(e){var t={};return Object.keys(e).forEach(function(r){t[r]=new Ao(e[r])}),t}(t.maps),"string"!=typeof i||"object"!=typeof n)throw new Error(jo)}else{if("string"!=typeof t)throw new Error(jo);i="__vue_ssr_bundle__",n={__vue_ssr_bundle__:t},o={}}var c=e(r),u=$o(i,n,a,r.runInNewContext);return{renderToString:function(e,t){var r,n;return"function"==typeof e&&(t=e,e={}),t||(n=(r=so()).promise,t=r.cb),u(e).catch(function(e){ko(e,o),t(e)}).then(function(r){r&&c.renderToString(r,e,function(e,r){ko(e,o),t(e,r)})}),n},renderToStream:function(e){var t=new Fo;return u(e).catch(function(e){ko(e,o),process.nextTick(function(){t.emit("error",e)})}).then(function(n){if(n){var i=c.renderToStream(n,e);i.on("error",function(e){ko(e,o),t.emit("error",e)}),r&&r.template&&(i.on("beforeStart",function(){t.emit("beforeStart")}),i.on("beforeEnd",function(){t.emit("beforeEnd")})),i.pipe(t)}}),t}}}}(Po);exports.createRenderer=Po,exports.createBundleRenderer=Eo;
\ No newline at end of file
diff --git a/packages/vue-server-renderer/package.json b/packages/vue-server-renderer/package.json
index bd3d0ba8b78..bda5ca858db 100644
--- a/packages/vue-server-renderer/package.json
+++ b/packages/vue-server-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-server-renderer",
-  "version": "2.6.9",
+  "version": "2.6.10",
   "description": "server renderer for Vue 2.0",
   "main": "index.js",
   "types": "types/index.d.ts",
diff --git a/packages/vue-template-compiler/browser.js b/packages/vue-template-compiler/browser.js
index fc5c3cf550c..8c5a0fa2671 100644
--- a/packages/vue-template-compiler/browser.js
+++ b/packages/vue-template-compiler/browser.js
@@ -4082,7 +4082,7 @@
 
   /*  */
 
-  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+  var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
   var fnInvokeRE = /\([^)]*?\);*$/;
   var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
diff --git a/packages/vue-template-compiler/build.js b/packages/vue-template-compiler/build.js
index 8e0d35d215f..b8f356c34d9 100644
--- a/packages/vue-template-compiler/build.js
+++ b/packages/vue-template-compiler/build.js
@@ -3712,7 +3712,7 @@ function isDirectChildOfTemplateFor (node) {
 
 /*  */
 
-var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
+var fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/;
 var fnInvokeRE = /\([^)]*?\);*$/;
 var simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/;
 
diff --git a/packages/vue-template-compiler/package.json b/packages/vue-template-compiler/package.json
index a2d3e7b598e..c545f587a3f 100644
--- a/packages/vue-template-compiler/package.json
+++ b/packages/vue-template-compiler/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-template-compiler",
-  "version": "2.6.9",
+  "version": "2.6.10",
   "description": "template compiler for Vue 2.0",
   "main": "index.js",
   "unpkg": "browser.js",

From e90cc60c4718a69e2c919275a999b7370141f3bf Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 20 Mar 2019 14:26:44 +0800
Subject: [PATCH 878/911] build: release 2.6.10

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 748b98cdf18..fc6df828eaa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue",
-  "version": "2.6.9",
+  "version": "2.6.10",
   "description": "Reactive, component-oriented view layer for modern web interfaces.",
   "main": "dist/vue.runtime.common.js",
   "module": "dist/vue.runtime.esm.js",

From 6be3bf4a69b4f59fd5507dfdc7ab5f8ba5d00c67 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Mon, 1 Apr 2019 21:21:20 -0400
Subject: [PATCH 879/911] chore: update sponsors [ci skip] (#9804)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 9f0d90ede2f..48cef1a74ac 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -214,6 +214,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.svg">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://x-team.com/join" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/x_team.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index dda1c36afe3..c9b1492ec1d 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.svg">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="http://x-team.com/join" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/x_team.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 8637009b5bbbfa5cee6aa3d9b9dc24922f3dfd50 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Fri, 5 Apr 2019 10:17:49 -0400
Subject: [PATCH 880/911] chore: update backers [ci skip] (#9827)

---
 BACKERS.md | 95 +++++++++++++++++++++++++++---------------------------
 1 file changed, 47 insertions(+), 48 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 48cef1a74ac..c2c184ee478 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -352,114 +352,113 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 - Shawn Wildermuth
 - Samuel Smith
 - donny
-- Sean Washington
 - Simon East
+- Keisuke Kita
 - kazupon
+- Sean Washington
 - Lars Andreas Ness
+- Benjamin Listwon
 - Kirk Lewis
 - Stephen Michael Hartley
-- Keisuke Kita
-- Wen-Tien Chang
-- Benjamin Listwon
 - Victor Tolbert
+- Wen-Tien Chang
 - Karol
 - Phan An
-- Barbara Liau
-- Miljan Aleksic
 - James J. Ye
+- Barbara Liau
 - Luiz
-- Jarek Tkaczyk
 - Matsumoto Takamasa
-- Duncan Kenzie
-- Mike Margerum
+- Jarek Tkaczyk
 - Niannian Modisette
-- Bernhard E. Reiter
 - Matt Jones
+- Duncan Kenzie
 - Guy Gavergun
+- Shinya Katayama
+- Mike Margerum
+- Bernhard E. Reiter
+- Chengzhi Yin
 - Zoran Knezevic
 - Jon Hobbs-Smith
 - Pierre Vanhulst
-- Shinya Katayama
-- Asaf Yishai
-- Anthony Estebe
 - Akiho Nagao
 - Haim Yulzari
+- Asaf Yishai
+- Anthony Estebe
+- Jeremy Tan
 - Jim Raden
 - IMGNRY
-- Jeremy Tan
-- Tyler
-- Yong Jun Thong
 - Tai Shi Ling
-- Jamie McElwain
-- Matias Verdier
+- Yong Jun Thong
+- Tyler
 - Vivekanandhan Natarajan
-- Daniel Waghorn
-- Mickaël Andrieu
-- Chih-Hsuan Fan
+- Matias Verdier
 - Rafael Belvederese
+- Chih-Hsuan Fan
 - Guilherme S L de Souza
-- Joe Gregory
-- Cliff Hess
+- Daniel Waghorn
 - Rob Yedlin
+- Mickaël Andrieu
+- Jamie McElwain
 - Jordan Oroshiba
-- RADD Creative
-- Marcos Moura
+- Cliff Hess
+- Joe Gregory
 - Richard Simpson
+- Marcos Moura
 - Jessie Hernandez
-- Aparajita Fishman
 - Ivan Sieder
 - Eric
+- Aparajita Fishman
 - Romain Lienard
+- Bohdan Kokotko
 - Christo Crampton
 - David Ang
-- Bohdan Kokotko
 - Donald Fischer
+- Alexander Weiher
+- Oskar Lindgren
+- Jere Sjöroos
 - Wakana Seki
 - David Kaplan
+- Ben Hong
 - Domenico Gaudioso
 - Jaeyoung Lee
-- Ben Hong
-- Alexander Weiher
-- Oskar Lindgren
-- Jere Sjöroos
 - Andy
-- John Cleveland
-- Daniel Mattingley
 - Joe Cochran
-- Elon Hung
-- Teon Ooi
-- Chris Calo
-- Colt Borg
 - Matt Sencenbaugh
+- Juan Bermudez
 - Hannes Kochniß
+- Colt Borg
 - Alberto T. Payero Mota
-- Juan Bermudez
+- Daniel Mattingley
+- Teon Ooi
+- Chris Calo
+- Elon Hung
+- Soichiro Isshiki
 - Milan Zivkovic
-- Garion Herman
 - Christopher Bemister
 - Ed Linklater
+- Garion Herman
 - Marko Boskovic
-- Soichiro Isshiki
+- Rob
 - Andrew Willis
 - Yusuke Kawabata
 - Princeyesuraj Edward
 - shimbaco
-- Nick Dandakis
-- Carlos Adrián
-- Peter Matkovsky
-- 极 蔡
 - 龙腾道
-- Kenneth Crawford
-- Fedor Indutny
+- 极 蔡
+- Peter Matkovsky
+- Nick Dandakis
 - Fabien GuySake Ungerer
-- Max Fletcher
+- Fedor Indutny
 - Masato Miura
 - Nathan Mallison
+- Shapovalov Pavel
 - David McGuigan
+- Max Fletcher
 - Bill Condo
 - Kevin Batdorf
+- Ivan Buncic
 - Pierre Lebrun
-- Juli A Schlack
+- Sheree Peña
 <!--10 end-->
 
 <h2 align="center">Backers via OpenCollective</h2>

From 94c0918f8d4f16d4d0e77771529f05427b1c2a7b Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Fri, 5 Apr 2019 10:18:06 -0400
Subject: [PATCH 881/911] chore: update sponsors [ci skip] (#9828)

---
 BACKERS.md | 24 ++----------------------
 README.md  | 19 ++-----------------
 2 files changed, 4 insertions(+), 39 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index c2c184ee478..02c6c8f2b39 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -167,43 +167,28 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.inkoop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.firesticktricks.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firestick_tricks.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://github.com/marcus-hiles" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://intygrate.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/intygrate.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://yakaz.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.bestvpn.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
@@ -251,11 +236,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/dopamine.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://gridsome.org/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/gridsome.png">
-        </a>
-      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index c9b1492ec1d..67847827023 100644
--- a/README.md
+++ b/README.md
@@ -172,43 +172,28 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devsquad.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.inkoop.in/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/inkoop.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://www.firesticktricks.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/firestick_tricks.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://github.com/marcus-hiles" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/marcus_hiles.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://intygrate.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/intygrate.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://isleofcode.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://yakaz.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/yakaz.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.bestvpn.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">

From a8184917a26215629d6194c079c953dff4caacf5 Mon Sep 17 00:00:00 2001
From: Eduardo San Martin Morote <posva@users.noreply.github.com>
Date: Fri, 5 Apr 2019 22:18:50 +0200
Subject: [PATCH 882/911] docs(contributing): replace npm install with yarn

Related to #9831
---
 .github/CONTRIBUTING.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 88f23b3b6ee..50fa9ba782f 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -35,12 +35,12 @@ Hi! I'm really excited that you are interested in contributing to Vue.js. Before
 
 ## Development Setup
 
-You will need [Node.js](http://nodejs.org) **version 6+** and [Java Runtime Environment](http://www.oracle.com/technetwork/java/javase/downloads/index.html) (for running Selenium server during e2e tests).
+You will need [Node.js](http://nodejs.org) **version 8+** and [Java Runtime Environment](http://www.oracle.com/technetwork/java/javase/downloads/index.html) (for running Selenium server during e2e tests).
 
 After cloning the repo, run:
 
 ``` bash
-$ npm install # or yarn
+$ yarn # it install the dependencies of the project
 ```
 
 ### Committing Changes

From 6a8473411ab67e4b4b00773c5c15b0fad7339b76 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Fri, 5 Apr 2019 22:19:11 -0400
Subject: [PATCH 883/911] chore: update sponsors [ci skip] (#9834)

---
 BACKERS.md | 2 +-
 README.md  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 02c6c8f2b39..5b9c38cd829 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -200,7 +200,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="http://x-team.com/join" target="_blank">
+        <a href="https://x-team.com/join/?utm_source=vuejsorg&utm_medium=sponsor&utm_campaign=vuejsorg-patreon" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/x_team.png">
         </a>
       </td>
diff --git a/README.md b/README.md
index 67847827023..0ee461f0364 100644
--- a/README.md
+++ b/README.md
@@ -205,7 +205,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="http://x-team.com/join" target="_blank">
+        <a href="https://x-team.com/join/?utm_source=vuejsorg&utm_medium=sponsor&utm_campaign=vuejsorg-patreon" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/x_team.png">
         </a>
       </td>

From af15d16d62d5ebea28322b703806624dd1ffd039 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Mon, 8 Apr 2019 09:15:00 -0400
Subject: [PATCH 884/911] chore: update sponsors [ci skip] (#9845)

---
 BACKERS.md | 13 +++++++++----
 README.md  | 13 +++++++++----
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 5b9c38cd829..46e3d4ce14f 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -145,18 +145,23 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
@@ -182,13 +187,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.bestvpn.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
diff --git a/README.md b/README.md
index 0ee461f0364..af7b20c531f 100644
--- a/README.md
+++ b/README.md
@@ -150,18 +150,23 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuejobs.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.valuecoders.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/valuecoders.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://tidelift.com/subscription/npm/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
@@ -187,13 +192,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.bestvpn.co/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">

From 546e7d14adddad643f0065ba91c95d69cbbb020e Mon Sep 17 00:00:00 2001
From: Billy Zou <yz3352@nyu.edu>
Date: Mon, 8 Apr 2019 14:06:47 -0400
Subject: [PATCH 885/911] docs(contributing): add yarn requirement to guide
 (#9848)

---
 .github/CONTRIBUTING.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 50fa9ba782f..46c49bfbe81 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -35,12 +35,12 @@ Hi! I'm really excited that you are interested in contributing to Vue.js. Before
 
 ## Development Setup
 
-You will need [Node.js](http://nodejs.org) **version 8+** and [Java Runtime Environment](http://www.oracle.com/technetwork/java/javase/downloads/index.html) (for running Selenium server during e2e tests).
+You will need [Node.js](http://nodejs.org) **version 8+**, [Java Runtime Environment](http://www.oracle.com/technetwork/java/javase/downloads/index.html) (for running Selenium server during e2e tests) and [yarn](https://yarnpkg.com/en/docs/install).
 
 After cloning the repo, run:
 
 ``` bash
-$ yarn # it install the dependencies of the project
+$ yarn # install the dependencies of the project
 ```
 
 ### Committing Changes

From fb4d2c1c632795d1db0e81ad8289cd1718b19e61 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Tue, 9 Apr 2019 22:51:23 -0400
Subject: [PATCH 886/911] chore: update sponsors [ci skip] (#9846)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 46e3d4ce14f..ab4f08c88ef 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -209,6 +209,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/x_team.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.vpnranks.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vpnranks.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index af7b20c531f..9438c8ebb20 100644
--- a/README.md
+++ b/README.md
@@ -214,6 +214,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/x_team.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.vpnranks.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vpnranks.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 15704ce6ef274f30b05b9fc89337a18bbe48ff57 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 10 Apr 2019 11:01:01 +0800
Subject: [PATCH 887/911] chore: use png for sponsor logo

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index ab4f08c88ef..3f97b61cd2b 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -201,7 +201,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="http://en.shopware.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.svg">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.png">
         </a>
       </td>
       <td align="center" valign="middle">
diff --git a/README.md b/README.md
index 9438c8ebb20..ae5d20e5832 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -206,7 +206,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
       <td align="center" valign="middle">
         <a href="http://en.shopware.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.svg">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.png">
         </a>
       </td>
       <td align="center" valign="middle">

From 91b8cda0b28d6774d7319d646c999e04d948a8cd Mon Sep 17 00:00:00 2001
From: Billy Zou <yz3352@nyu.edu>
Date: Wed, 10 Apr 2019 11:45:47 -0400
Subject: [PATCH 888/911] docs(contributing): fix a grammar error (#9858)

---
 .github/CONTRIBUTING.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 46c49bfbe81..3a2082ef646 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -59,7 +59,7 @@ $ npm run dev:test
 # build all dist files, including npm packages
 $ npm run build
 
-# run the full test suite, include linting/type checking
+# run the full test suite, including linting/type checking
 $ npm test
 ```
 

From f478ab80106b4993398761608aee71b9724e2227 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Wed, 10 Apr 2019 21:00:56 -0400
Subject: [PATCH 889/911] chore: update sponsors [ci skip] (#9860)

---
 BACKERS.md | 7 ++++++-
 README.md  | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 3f97b61cd2b..414e197862b 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -214,6 +214,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vpnranks.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.simplyswitch.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/energy_comparison.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index ae5d20e5832..da124764d78 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -219,6 +219,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vpnranks.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.simplyswitch.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/energy_comparison.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 29e745f99f43d0629df547da80b016996ae70872 Mon Sep 17 00:00:00 2001
From: Henri Yandell <hyandell@users.noreply.github.com>
Date: Mon, 22 Apr 2019 18:44:01 -0700
Subject: [PATCH 890/911] chore: improve license clarity of simplehtmlparser.js
 (#9907)

---
 src/compiler/parser/html-parser.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index f93c098fa5a..e75ed76539d 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -5,7 +5,7 @@
 /*!
  * HTML Parser By John Resig (ejohn.org)
  * Modified by Juriy "kangax" Zaytsev
- * Original code by Erik Arvidsson, Mozilla Public License
+ * Original code by Erik Arvidsson (MPL-1.1 OR Apache-2.0 OR GPL-2.0-or-later)
  * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
  */
 

From a9a303009a4267b7f12b956741b4e34dfdc6566f Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 25 Apr 2019 10:00:51 +0800
Subject: [PATCH 891/911] chore: fix SimpleSet export

---
 src/core/util/env.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/core/util/env.js b/src/core/util/env.js
index eff1d21dc75..820bacdb405 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -87,11 +87,10 @@ if (typeof Set !== 'undefined' && isNative(Set)) {
   }
 }
 
-interface SimpleSet {
+export interface SimpleSet {
   has(key: string | number): boolean;
   add(key: string | number): mixed;
   clear(): void;
 }
 
 export { _Set }
-export type { SimpleSet }

From ea113d261835d14b7fb7a14896972efc3c8a75b9 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 25 Apr 2019 10:13:32 +0800
Subject: [PATCH 892/911] test: separate failing test for TS 3.4

---
 types/test/options-test.ts | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/types/test/options-test.ts b/types/test/options-test.ts
index b8bdc098312..28060b7c817 100644
--- a/types/test/options-test.ts
+++ b/types/test/options-test.ts
@@ -76,10 +76,6 @@ Vue.component('union-prop', {
     complexUnion: { type: [User, Number] as PropType<User | number> },
     kittyUser: Object as PropType<ICat & IUser>,
     callback: Function as PropType<ConfirmCallback>,
-    mixed: [RegExp, Array],
-    object: [Cat, User],
-    primitive: [String, Number],
-    regex: RegExp,
     union: [User, Number] as PropType<User | number>
   },
   data() {
@@ -87,10 +83,6 @@ Vue.component('union-prop', {
     this.complexUnion;
     this.kittyUser;
     this.callback(true);
-    this.mixed;
-    this.object;
-    this.primitive;
-    this.regex.compile;
     this.union;
     return {
       fixedSize: this.union,
@@ -98,6 +90,22 @@ Vue.component('union-prop', {
   }
 });
 
+// stopped working since TS 3.4
+// Vue.component('union-prop-with-no-casting', {
+//   props: {
+//     mixed: [RegExp, Array],
+//     object: [Cat, User],
+//     primitive: [String, Number],
+//     regex: RegExp
+//   },
+//   data() {
+//     this.mixed;
+//     this.object;
+//     this.primitive;
+//     this.regex.compile;
+//   }
+// })
+
 Vue.component('prop-with-primitive-default', {
   props: {
     id: {

From 43b98fe25151b0b6bacd36f3ee27c5d61add5fdb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=AD=90=E8=BF=9F?= <hanzichi@outlook.com>
Date: Thu, 25 Apr 2019 10:34:55 +0800
Subject: [PATCH 893/911] refactor: remove useless parameter to the function
 removeVnodes (#9914)

close #9910
---
 packages/weex-vue-framework/factory.js | 8 ++++----
 src/core/vdom/patch.js                 | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/packages/weex-vue-framework/factory.js b/packages/weex-vue-framework/factory.js
index 8bcfb675ba9..fb30d12bbbd 100644
--- a/packages/weex-vue-framework/factory.js
+++ b/packages/weex-vue-framework/factory.js
@@ -5797,7 +5797,7 @@ function createPatchFunction (backend) {
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+  function removeVnodes (vnodes, startIdx, endIdx) {
     for (; startIdx <= endIdx; ++startIdx) {
       var ch = vnodes[startIdx];
       if (isDef(ch)) {
@@ -5908,7 +5908,7 @@ function createPatchFunction (backend) {
       refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
       addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
     } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
+      removeVnodes(oldCh, oldStartIdx, oldEndIdx);
     }
   }
 
@@ -5985,7 +5985,7 @@ function createPatchFunction (backend) {
         if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
       } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
+        removeVnodes(oldCh, 0, oldCh.length - 1);
       } else if (isDef(oldVnode.text)) {
         nodeOps.setTextContent(elm, '');
       }
@@ -6216,7 +6216,7 @@ function createPatchFunction (backend) {
 
         // destroy old node
         if (isDef(parentElm$1)) {
-          removeVnodes(parentElm$1, [oldVnode], 0, 0);
+          removeVnodes([oldVnode], 0, 0);
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode);
         }
diff --git a/src/core/vdom/patch.js b/src/core/vdom/patch.js
index 9746bb794f8..2052df913b3 100644
--- a/src/core/vdom/patch.js
+++ b/src/core/vdom/patch.js
@@ -358,7 +358,7 @@ export function createPatchFunction (backend) {
     }
   }
 
-  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
+  function removeVnodes (vnodes, startIdx, endIdx) {
     for (; startIdx <= endIdx; ++startIdx) {
       const ch = vnodes[startIdx]
       if (isDef(ch)) {
@@ -469,7 +469,7 @@ export function createPatchFunction (backend) {
       refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm
       addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue)
     } else if (newStartIdx > newEndIdx) {
-      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx)
+      removeVnodes(oldCh, oldStartIdx, oldEndIdx)
     }
   }
 
@@ -561,7 +561,7 @@ export function createPatchFunction (backend) {
         if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '')
         addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue)
       } else if (isDef(oldCh)) {
-        removeVnodes(elm, oldCh, 0, oldCh.length - 1)
+        removeVnodes(oldCh, 0, oldCh.length - 1)
       } else if (isDef(oldVnode.text)) {
         nodeOps.setTextContent(elm, '')
       }
@@ -790,7 +790,7 @@ export function createPatchFunction (backend) {
 
         // destroy old node
         if (isDef(parentElm)) {
-          removeVnodes(parentElm, [oldVnode], 0, 0)
+          removeVnodes([oldVnode], 0, 0)
         } else if (isDef(oldVnode.tag)) {
           invokeDestroyHook(oldVnode)
         }

From bd6cea0973247e2a8e1d4a2250614c0bf44f0b26 Mon Sep 17 00:00:00 2001
From: zrh122 <46116414+zrh122@users.noreply.github.com>
Date: Thu, 25 Apr 2019 10:35:16 +0800
Subject: [PATCH 894/911] test: fix running e2e test on windows (#9909)

---
 test/e2e/nightwatch.config.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/e2e/nightwatch.config.js b/test/e2e/nightwatch.config.js
index 2004f92b45b..8ec592494fe 100644
--- a/test/e2e/nightwatch.config.js
+++ b/test/e2e/nightwatch.config.js
@@ -50,7 +50,8 @@ module.exports = {
       'desiredCapabilities': {
         'browserName': 'phantomjs',
         'javascriptEnabled': true,
-        'acceptSslCerts': true
+        'acceptSslCerts': true,
+        'phantomjs.binary.path': require('phantomjs-prebuilt').path
       }
     }
   }

From 861aea16615a9736eab6af6d05fa5500ae4d6c37 Mon Sep 17 00:00:00 2001
From: Natalia Tepluhina <NataliaTepluhina@users.noreply.github.com>
Date: Thu, 25 Apr 2019 05:39:19 +0300
Subject: [PATCH 895/911] polish: add warning when .native modifier is used on
 native HTML elements (#9884)

---
 src/core/vdom/create-element.js          |  6 ++++++
 test/unit/features/directives/on.spec.js | 14 ++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/src/core/vdom/create-element.js b/src/core/vdom/create-element.js
index 46027084b51..ba36e15b12d 100644
--- a/src/core/vdom/create-element.js
+++ b/src/core/vdom/create-element.js
@@ -98,6 +98,12 @@ export function _createElement (
     ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag)
     if (config.isReservedTag(tag)) {
       // platform built-in elements
+      if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.nativeOn)) {
+        warn(
+          `The .native modifier for v-on is only valid on components but it was used on <${tag}>.`,
+          context
+        )
+      }
       vnode = new VNode(
         config.parsePlatformTagName(tag), data, children,
         undefined, undefined, context
diff --git a/test/unit/features/directives/on.spec.js b/test/unit/features/directives/on.spec.js
index a97ddaa8947..b7801a82f22 100644
--- a/test/unit/features/directives/on.spec.js
+++ b/test/unit/features/directives/on.spec.js
@@ -460,6 +460,20 @@ describe('Directive v-on', () => {
     expect(spy).toHaveBeenCalled()
   })
 
+  it('should throw a warning if native modifier is used on native HTML element', () => {
+    vm = new Vue({
+      el,
+      template: `
+        <button @click.native="foo"></button>
+      `,
+      methods: { foo: spy },
+    })
+
+    triggerEvent(vm.$el, 'click')
+    expect(`The .native modifier for v-on is only valid on components but it was used on <button>.`).toHaveBeenWarned()
+    expect(spy.calls.count()).toBe(0)
+  })
+
   it('.once modifier should work with child components', () => {
     vm = new Vue({
       el,

From 085d188379af98e9f482d7e2009ebfd771bd7ca5 Mon Sep 17 00:00:00 2001
From: "X.L" <liximomo@gmail.com>
Date: Thu, 25 Apr 2019 11:17:39 +0800
Subject: [PATCH 896/911] fix(compiler): Remove the warning for valid v-slot
 value (#9917)

---
 src/compiler/error-detector.js                   | 15 +++++++++++++++
 src/compiler/parser/index.js                     |  4 ++--
 .../component/component-scoped-slot.spec.js      | 16 ++++++++++++++++
 3 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/src/compiler/error-detector.js b/src/compiler/error-detector.js
index 22c3b75d3aa..9893aa4a47a 100644
--- a/src/compiler/error-detector.js
+++ b/src/compiler/error-detector.js
@@ -36,6 +36,8 @@ function checkNode (node: ASTNode, warn: Function) {
           const range = node.rawAttrsMap[name]
           if (name === 'v-for') {
             checkFor(node, `v-for="${value}"`, warn, range)
+          } else if (name === 'v-slot' || name[0] === '#') {
+            checkFunctionParameterExpression(value, `${name}="${value}"`, warn, range)
           } else if (onRE.test(name)) {
             checkEvent(value, `${name}="${value}"`, warn, range)
           } else {
@@ -111,3 +113,16 @@ function checkExpression (exp: string, text: string, warn: Function, range?: Ran
     }
   }
 }
+
+function checkFunctionParameterExpression (exp: string, text: string, warn: Function, range?: Range) {
+  try {
+    new Function(exp, '')
+  } catch (e) {
+    warn(
+      `invalid function parameter expression: ${e.message} in\n\n` +
+      `    ${exp}\n\n` +
+      `  Raw expression: ${text.trim()}\n`,
+      range
+    )
+  }
+}
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
index fb258752179..cdeb257eda4 100644
--- a/src/compiler/parser/index.js
+++ b/src/compiler/parser/index.js
@@ -23,8 +23,8 @@ import {
 
 export const onRE = /^@|^v-on:/
 export const dirRE = process.env.VBIND_PROP_SHORTHAND
-  ? /^v-|^@|^:|^\./
-  : /^v-|^@|^:/
+  ? /^v-|^@|^:|^\.|^#/
+  : /^v-|^@|^:|^#/
 export const forAliasRE = /([\s\S]*?)\s+(?:in|of)\s+([\s\S]*)/
 export const forIteratorRE = /,([^,\}\]]*)(?:,([^,\}\]]*))?$/
 const stripParensRE = /^\(|\)$/g
diff --git a/test/unit/features/component/component-scoped-slot.spec.js b/test/unit/features/component/component-scoped-slot.spec.js
index f8a0f11b7fa..28369814f48 100644
--- a/test/unit/features/component/component-scoped-slot.spec.js
+++ b/test/unit/features/component/component-scoped-slot.spec.js
@@ -759,6 +759,22 @@ describe('Component scoped slot', () => {
         }).$mount()
         expect(`Unexpected mixed usage of different slot syntaxes`).toHaveBeenWarned()
       })
+
+      it('should warn invalid parameter expression', () => {
+        new Vue({
+          template: `<foo ${syntax}="1"></foo>`,
+          components: { Foo }
+        }).$mount();
+        expect('invalid function parameter expression').toHaveBeenWarned()
+      })
+
+      it('should allow destructuring props with default value', () => {
+        new Vue({
+          template: `<foo ${syntax}="{ foo = { bar: '1' } }"></foo>`,
+          components: { Foo }
+        }).$mount();
+        expect('invalid function parameter expression').not.toHaveBeenWarned()
+      })
     }
 
     // run tests for both full syntax and shorthand

From ab50e8e1da2f4f944af683252481728485fedf16 Mon Sep 17 00:00:00 2001
From: katashin <ktsn55@gmail.com>
Date: Thu, 25 Apr 2019 11:18:07 +0800
Subject: [PATCH 897/911] fix(types): fix global namespace declaration for UMD
 bundle (#9912)

---
 types/index.d.ts         |  3 +--
 types/test/tsconfig.json | 14 +++---------
 types/test/umd-test.ts   |  7 ++++++
 types/umd.d.ts           | 48 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 59 insertions(+), 13 deletions(-)
 create mode 100644 types/test/umd-test.ts
 create mode 100644 types/umd.d.ts

diff --git a/types/index.d.ts b/types/index.d.ts
index b0e24d767e9..58ceb209e5d 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -1,9 +1,8 @@
 import { Vue } from "./vue";
+import "./umd";
 
 export default Vue;
 
-export as namespace Vue;
-
 export {
   CreateElement,
   VueConstructor
diff --git a/types/test/tsconfig.json b/types/test/tsconfig.json
index b816ce07cdc..dab30a608bf 100644
--- a/types/test/tsconfig.json
+++ b/types/test/tsconfig.json
@@ -14,17 +14,9 @@
       "vue": ["../index.d.ts"]
     }
   },
-  "files": [
-    "../index.d.ts",
-    "../options.d.ts",
-    "../plugin.d.ts",
-    "../vnode.d.ts",
-    "../vue.d.ts",
-    "options-test.ts",
-    "plugin-test.ts",
-    "vue-test.ts",
-    "augmentation-test.ts",
-    "ssr-test.ts"
+  "include": [
+    "../*.d.ts",
+    "*.ts"
   ],
   "compileOnSave": false
 }
diff --git a/types/test/umd-test.ts b/types/test/umd-test.ts
new file mode 100644
index 00000000000..ffdc7046f92
--- /dev/null
+++ b/types/test/umd-test.ts
@@ -0,0 +1,7 @@
+const vm = new Vue({
+  template: "<div>hi</div>"
+});
+
+const options: Vue.ComponentOptions<Vue> = {
+  template: "<div>test</div>"
+};
diff --git a/types/umd.d.ts b/types/umd.d.ts
new file mode 100644
index 00000000000..618d484e48d
--- /dev/null
+++ b/types/umd.d.ts
@@ -0,0 +1,48 @@
+import * as V from "./index";
+import {
+  DefaultData,
+  DefaultProps,
+  DefaultMethods,
+  DefaultComputed,
+  PropsDefinition
+} from "./options";
+
+// Expose some types for backword compatibility...
+declare namespace Vue {
+  // vue.d.ts
+  export type CreateElement = V.CreateElement;
+  export type VueConstructor<V extends Vue = Vue> = V.VueConstructor<V>;
+
+  // options.d.ts
+  export type Component<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps> = V.Component<Data, Methods, Computed, Props>;
+  export type AsyncComponent<Data=DefaultData<never>, Methods=DefaultMethods<never>, Computed=DefaultComputed, Props=DefaultProps> = V.AsyncComponent<Data, Methods, Computed, Props>;
+  export type ComponentOptions<V extends Vue, Data=DefaultData<V>, Methods=DefaultMethods<V>, Computed=DefaultComputed, PropsDef=PropsDefinition<DefaultProps>, Props=DefaultProps> = V.ComponentOptions<V, Data, Methods, Computed, PropsDef, Props>;
+  export type FunctionalComponentOptions<Props = DefaultProps, PropDefs = PropsDefinition<Props>> = V.FunctionalComponentOptions<Props, PropDefs>;
+  export type RenderContext<Props=DefaultProps> = V.RenderContext<Props>;
+  export type PropType<T> = V.PropType<T>;
+  export type PropOptions<T=any> = V.PropOptions<T>;
+  export type ComputedOptions<T> = V.ComputedOptions<T>;
+  export type WatchHandler<T> = V.WatchHandler<T>;
+  export type WatchOptions = V.WatchOptions;
+  export type WatchOptionsWithHandler<T> = V.WatchOptionsWithHandler<T>;
+  export type DirectiveFunction = V.DirectiveFunction;
+  export type DirectiveOptions = V.DirectiveOptions;
+
+  // plugin.d.ts
+  export type PluginFunction<T> = V.PluginFunction<T>;
+  export type PluginObject<T> = V.PluginObject<T>;
+
+  // vnode.d.ts
+  export type VNodeChildren = V.VNodeChildren;
+  export type VNodeChildrenArrayContents = V.VNodeChildrenArrayContents;
+  export type VNode = V.VNode;
+  export type VNodeComponentOptions = V.VNodeComponentOptions;
+  export type VNodeData = V.VNodeData;
+  export type VNodeDirective = V.VNodeDirective;
+}
+
+declare class Vue extends V.default {}
+
+export = Vue;
+
+export as namespace Vue;

From 569b728ab19d1956bf935a98c9c65a03d92ac85f Mon Sep 17 00:00:00 2001
From: GU Yiling <justice360@gmail.com>
Date: Thu, 25 Apr 2019 21:04:36 +0800
Subject: [PATCH 898/911] fix: fix function expression regex (#9922)

fix #9920
---
 src/compiler/codegen/events.js             | 2 +-
 test/unit/modules/compiler/codegen.spec.js | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/compiler/codegen/events.js b/src/compiler/codegen/events.js
index 44657e38cd8..fc817c03d52 100644
--- a/src/compiler/codegen/events.js
+++ b/src/compiler/codegen/events.js
@@ -1,6 +1,6 @@
 /* @flow */
 
-const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function\s*(?:[\w$]+)?\s*\(/
+const fnExpRE = /^([\w$_]+|\([^)]*?\))\s*=>|^function(?:\s+[\w$]+)?\s*\(/
 const fnInvokeRE = /\([^)]*?\);*$/
 const simplePathRE = /^[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['[^']*?']|\["[^"]*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*$/
 
diff --git a/test/unit/modules/compiler/codegen.spec.js b/test/unit/modules/compiler/codegen.spec.js
index e946e218491..10c65618a58 100644
--- a/test/unit/modules/compiler/codegen.spec.js
+++ b/test/unit/modules/compiler/codegen.spec.js
@@ -345,6 +345,11 @@ describe('codegen', () => {
       `<input @input="onInput(');[\\'());');">`,
       `with(this){return _c('input',{on:{"input":function($event){onInput(');[\\'());');}}})}`
     )
+    // function name including a `function` part (#9920)
+    assertCodegen(
+      '<input @input="functionName()">',
+      `with(this){return _c('input',{on:{"input":function($event){return functionName()}}})}`
+    )
   })
 
   it('generate events with multiple statements', () => {

From f0b9c923786e1e35e4586502d21cc2f804c9489d Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Sun, 28 Apr 2019 03:39:43 +0200
Subject: [PATCH 899/911] chore: update sponsors [ci skip] (#9933)

---
 BACKERS.md | 7 +++++++
 README.md  | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 414e197862b..541ce91232d 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -220,6 +220,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://blokt.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index da124764d78..cc8f21d590d 100644
--- a/README.md
+++ b/README.md
@@ -225,6 +225,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://blokt.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From 26bd80774fd70625b2ec44ddd9c967571ef4a884 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Thu, 2 May 2019 17:01:15 +0200
Subject: [PATCH 900/911] chore: update sponsors [ci skip] (#9970)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 541ce91232d..f0ac969322c 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -221,6 +221,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
     </tr><tr></tr>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.bacancytechnology.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://blokt.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">
diff --git a/README.md b/README.md
index cc8f21d590d..88ae7575aa9 100644
--- a/README.md
+++ b/README.md
@@ -226,6 +226,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
     </tr><tr></tr>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.bacancytechnology.com" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://blokt.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">

From 1137e415c9e8701d1b0a25e5812f8c4dffeeeaaa Mon Sep 17 00:00:00 2001
From: Sai <sairoutine@gmail.com>
Date: Thu, 9 May 2019 00:08:29 +0900
Subject: [PATCH 901/911] chore(typo): fix typo in comments (#9995)

---
 src/compiler/parser/html-parser.js                    | 2 +-
 src/core/instance/render-helpers/bind-dynamic-keys.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/compiler/parser/html-parser.js b/src/compiler/parser/html-parser.js
index e75ed76539d..dbc59146331 100644
--- a/src/compiler/parser/html-parser.js
+++ b/src/compiler/parser/html-parser.js
@@ -22,7 +22,7 @@ const startTagOpen = new RegExp(`^<${qnameCapture}`)
 const startTagClose = /^\s*(\/?)>/
 const endTag = new RegExp(`^<\\/${qnameCapture}[^>]*>`)
 const doctype = /^<!DOCTYPE [^>]+>/i
-// #7298: escape - to avoid being pased as HTML comment when inlined in page
+// #7298: escape - to avoid being passed as HTML comment when inlined in page
 const comment = /^<!\--/
 const conditionalComment = /^<!\[/
 
diff --git a/src/core/instance/render-helpers/bind-dynamic-keys.js b/src/core/instance/render-helpers/bind-dynamic-keys.js
index ff37fc48b66..4437668e5ce 100644
--- a/src/core/instance/render-helpers/bind-dynamic-keys.js
+++ b/src/core/instance/render-helpers/bind-dynamic-keys.js
@@ -17,7 +17,7 @@ export function bindDynamicKeys (baseObj: Object, values: Array<any>): Object {
     if (typeof key === 'string' && key) {
       baseObj[values[i]] = values[i + 1]
     } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {
-      // null is a speical value for explicitly removing a binding
+      // null is a special value for explicitly removing a binding
       warn(
         `Invalid value for dynamic directive argument (expected string or null): ${key}`,
         this

From 0caebfe905bc1e587fb583de778287c2362bba1a Mon Sep 17 00:00:00 2001
From: msidolphin <OoMass-EffectoO@hotmail.com>
Date: Tue, 14 May 2019 18:15:42 +0800
Subject: [PATCH 902/911] chore(typo): fix README tag mismatch (#9934)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 88ae7575aa9..11746a08908 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 </table>
 <!--special-china end-->
 
-<h3 align="center">Gold Sponsors</h4>
+<h3 align="center">Gold Sponsors</h3>
 
 <!--gold start-->
 <table>

From 06d4ad40a49e85e678ce2aa8fac0ecf2176f86e2 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Thu, 16 May 2019 03:04:06 +0200
Subject: [PATCH 903/911] chore: update sponsors [ci skip] (#10031)

---
 BACKERS.md | 29 ++++++++++++-----------------
 README.md  | 29 ++++++++++++-----------------
 2 files changed, 24 insertions(+), 34 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index f0ac969322c..757722ac58a 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -36,7 +36,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
+        <a href="https://bit.dev/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
         </a>
       </td>
@@ -125,11 +125,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
     </tr><tr></tr>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://vuetifyjs.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://neds.com.au/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
@@ -155,13 +150,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
@@ -187,18 +182,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bestvpn.co/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
-        </a>
-      </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://en.shopware.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.png">
@@ -219,8 +209,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/energy_comparison.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.bacancytechnology.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
@@ -232,6 +220,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.jqwidgets.com/vue/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jqwidgets_ltd.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->
diff --git a/README.md b/README.md
index 11746a08908..f75f88e89f8 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://www.bitsrc.io/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
+        <a href="https://bit.dev/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
         </a>
       </td>
@@ -130,11 +130,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
       </td>
     </tr><tr></tr>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://vuetifyjs.com" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vuetify.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://neds.com.au/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/neds.png">
@@ -160,13 +155,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/tidelift.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="http://www.syncfusion.com/?utm_source=vuejs&utm_medium=list&utm_campaign=vuejsjslistcy19" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/syncfusion.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://opteo.com/vue" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/opteo.png">
@@ -192,18 +187,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/isle_of_code.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://passionatepeople.io/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/passionate_people.png">
         </a>
       </td>
-      <td align="center" valign="middle">
-        <a href="https://www.bestvpn.co/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
-        </a>
-      </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="http://en.shopware.com/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/shopware_ag.png">
@@ -224,8 +214,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/energy_comparison.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://www.bacancytechnology.com" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bacancy_technology.png">
@@ -237,6 +225,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
     </tr><tr></tr>
+    <tr>
+      <td align="center" valign="middle">
+        <a href="https://www.jqwidgets.com/vue/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jqwidgets_ltd.png">
+        </a>
+      </td>
+    </tr><tr></tr>
   </tbody>
 </table>
 <!--gold end-->

From 0224ae85183ca2b05988e0a7b7572b530ca92eba Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Fri, 24 May 2019 11:19:01 +0800
Subject: [PATCH 904/911] Create FUNDING.yml

---
 .github/FUNDING.yml | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 .github/FUNDING.yml

diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 00000000000..e69222390dd
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1,8 @@
+# These are supported funding model platforms
+
+github: yyx990803
+patreon: evanyou
+open_collective: vuejs
+ko_fi: # Replace with a single Ko-fi username
+tidelift: npm/vue
+custom: # Replace with a single custom sponsorship URL

From ff911c9ffef16c591b25df05cb2322ee737d13e0 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Fri, 24 May 2019 05:20:12 +0200
Subject: [PATCH 905/911] chore: update sponsors [ci skip] (#10064)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index 757722ac58a..cc2ea4bad0b 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -226,6 +226,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jqwidgets_ltd.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.y8.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/y8.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index f75f88e89f8..6aa42f66c7e 100644
--- a/README.md
+++ b/README.md
@@ -231,6 +231,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jqwidgets_ltd.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://www.y8.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/y8.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From f64765fa03c1eb1d37f3301ea5beb4d18e57158a Mon Sep 17 00:00:00 2001
From: Magic <905852308@qq.com>
Date: Tue, 4 Jun 2019 17:51:19 +0800
Subject: [PATCH 906/911] chore(typo): fix comment typo (#10101)

---
 src/core/instance/render.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/instance/render.js b/src/core/instance/render.js
index c888e39688d..15b3ad69f3a 100644
--- a/src/core/instance/render.js
+++ b/src/core/instance/render.js
@@ -84,7 +84,7 @@ export function renderMixin (Vue: Class<Component>) {
     // render self
     let vnode
     try {
-      // There's no need to maintain a stack becaues all render fns are called
+      // There's no need to maintain a stack because all render fns are called
       // separately from one another. Nested component's render fns are called
       // when parent component is patched.
       currentRenderingInstance = vm

From 3819af5c9dedde4d1ea81f9caa127e611c8752e3 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Tue, 11 Jun 2019 09:40:50 +0200
Subject: [PATCH 907/911] chore: update sponsors [ci skip] (#10113)

---
 BACKERS.md | 14 +++++++-------
 README.md  | 14 +++++++-------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index cc2ea4bad0b..ef4bec2e13f 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -30,11 +30,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://moduscreate.com/?utm_source=Vue&utm_medium=Partnership&utm_campaign=VueShip" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/modus.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://bit.dev/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
@@ -50,13 +45,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://vehikl.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vehikl.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.nativescript.org/vue?utm_source=vue-js-org&utm_medium=website&utm_campaign=nativescript-awareness" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nativescript.png">
@@ -231,6 +226,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/y8.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://js.devexpress.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devexpress.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 6aa42f66c7e..ad2942e12de 100644
--- a/README.md
+++ b/README.md
@@ -40,11 +40,6 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="middle">
-        <a href="https://moduscreate.com/?utm_source=Vue&utm_medium=Partnership&utm_campaign=VueShip" target="_blank">
-          <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/modus.png">
-        </a>
-      </td>
       <td align="center" valign="middle">
         <a href="https://bit.dev/?utm_source=vue&utm_medium=vue&utm_campaign=vue&utm_term=vue&utm_content=vue" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bit.png">
@@ -60,13 +55,13 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vueschool.png">
         </a>
       </td>
-    </tr><tr></tr>
-    <tr>
       <td align="center" valign="middle">
         <a href="https://vehikl.com/" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/vehikl.png">
         </a>
       </td>
+    </tr><tr></tr>
+    <tr>
       <td align="center" valign="middle">
         <a href="https://www.nativescript.org/vue?utm_source=vue-js-org&utm_medium=website&utm_campaign=nativescript-awareness" target="_blank">
           <img width="222px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/nativescript.png">
@@ -236,6 +231,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/y8.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://js.devexpress.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devexpress.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From d09355c5101bcaaa8ff1ff66032fd984a8a14664 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Wed, 12 Jun 2019 10:32:46 +0200
Subject: [PATCH 908/911] chore: update sponsors [ci skip] (#10130)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index ef4bec2e13f..a69fcc89754 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -231,6 +231,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devexpress.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://fastcoding.jp/javascript/ " target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/fastcoding_inc.svg">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index ad2942e12de..281955a3532 100644
--- a/README.md
+++ b/README.md
@@ -236,6 +236,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/devexpress.png">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="https://fastcoding.jp/javascript/ " target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/fastcoding_inc.svg">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From bbdaaf480c00b25d7d900cae79c03ef8d5ca7d53 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Wed, 12 Jun 2019 10:34:56 +0200
Subject: [PATCH 909/911] chore: update sponsors [ci skip] (#10136)

---
 BACKERS.md | 5 +++++
 README.md  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/BACKERS.md b/BACKERS.md
index a69fcc89754..f45d394beca 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -236,6 +236,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/fastcoding_inc.svg">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="usave.co.uk/utilities/broadband" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/usave.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>
diff --git a/README.md b/README.md
index 281955a3532..18dd7c08e9a 100644
--- a/README.md
+++ b/README.md
@@ -241,6 +241,11 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/fastcoding_inc.svg">
         </a>
       </td>
+      <td align="center" valign="middle">
+        <a href="usave.co.uk/utilities/broadband" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/usave.png">
+        </a>
+      </td>
     </tr><tr></tr>
   </tbody>
 </table>

From 8f7133c8fa64a11fa12ee7ec511f174c48051570 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 12 Jun 2019 22:39:51 +0800
Subject: [PATCH 910/911] chore: fix sponsor url [ci skip]

---
 BACKERS.md | 4 ++--
 README.md  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index f45d394beca..64421a9f324 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -237,7 +237,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="usave.co.uk/utilities/broadband" target="_blank">
+        <a href="https://usave.co.uk/utilities/broadband" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/usave.png">
         </a>
       </td>
diff --git a/README.md b/README.md
index 18dd7c08e9a..51ee999f080 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-  
+
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -242,7 +242,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="usave.co.uk/utilities/broadband" target="_blank">
+        <a href="https://usave.co.uk/utilities/broadband" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/usave.png">
         </a>
       </td>

From bad3c326a3f8b8e0d3bcf07917dc0adf97c32351 Mon Sep 17 00:00:00 2001
From: vue-bot <bot@vuejs.org>
Date: Fri, 14 Jun 2019 16:24:23 +0200
Subject: [PATCH 911/911] chore: update sponsors [ci skip] (#10158)

---
 BACKERS.md | 11 ++++++++---
 README.md  | 11 ++++++++---
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/BACKERS.md b/BACKERS.md
index 64421a9f324..b89f5d65545 100644
--- a/BACKERS.md
+++ b/BACKERS.md
@@ -21,7 +21,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h2 align="center">Platinum via Patreon</h2>
@@ -210,12 +210,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://blokt.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">
+        <a href="https://www.bestvpn.co/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://blokt.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://www.jqwidgets.com/vue/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jqwidgets_ltd.png">
diff --git a/README.md b/README.md
index 51ee999f080..318832d4745 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
     <img width="260px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/stdlib.png">
   </a>
 </p>
-
+  
 <!--special end-->
 
 <h3 align="center">Platinum Sponsors</h3>
@@ -215,12 +215,17 @@ Funds donated via Patreon go directly to support Evan You's full-time work on Vu
         </a>
       </td>
       <td align="center" valign="middle">
-        <a href="https://blokt.com/" target="_blank">
-          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">
+        <a href="https://www.bestvpn.co/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/bestvpn_co.png">
         </a>
       </td>
     </tr><tr></tr>
     <tr>
+      <td align="center" valign="middle">
+        <a href="https://blokt.com/" target="_blank">
+          <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/blokt_cryptocurrency_news.png">
+        </a>
+      </td>
       <td align="center" valign="middle">
         <a href="https://www.jqwidgets.com/vue/" target="_blank">
           <img width="148px" src="https://raw.githubusercontent.com/vuejs/vuejs.org/master/themes/vue/source/images/jqwidgets_ltd.png">